3032 files changed, 91233 insertions, 49520 deletions

diff --git a/CREDITS b/CREDITS
index 96935df..843e176 100644
--- a/CREDITS
+++ b/CREDITS
@@ -187,6 +187,10 @@ N: Krishna Balasubramanian
 E: balasub@cis.ohio-state.edu
 D: Wrote SYS V IPC (part of standard kernel since 0.99.10)
 
+N: Chris Ball
+E: chris@printf.net
+D: Former maintainer of the MMC/SD/SDIO subsystem.
+
 N: Dario Ballabio
 E: ballabio_dario@emc.com
 E: dario.ballabio@tiscalinet.it
diff --git a/Documentation/ABI/stable/sysfs-devices b/Documentation/ABI/stable/sysfs-devices
new file mode 100644
index 0000000..43f78b88d
--- /dev/null
+++ b/Documentation/ABI/stable/sysfs-devices
@@ -0,0 +1,10 @@
+# Note: This documents additional properties of any device beyond what
+# is documented in Documentation/sysfs-rules.txt
+
+What:		/sys/devices/*/of_path
+Date:		February 2015
+Contact:	Device Tree mailing list <devicetree@vger.kernel.org>
+Description:
+		Any device associated with a device-tree node will have
+		an of_path symlink pointing to the corresponding device
+		node in /sys/firmware/devicetree/
diff --git a/Documentation/ABI/testing/configfs-usb-gadget-printer b/Documentation/ABI/testing/configfs-usb-gadget-printer
new file mode 100644
index 0000000..6b0714e
--- /dev/null
+++ b/Documentation/ABI/testing/configfs-usb-gadget-printer
@@ -0,0 +1,9 @@
+What:		/config/usb-gadget/gadget/functions/printer.name
+Date:		Apr 2015
+KernelVersion:	4.1
+Description:
+		The attributes:
+
+		pnp_string	- Data to be passed to the host in pnp string
+		q_len		- Number of requests per endpoint
+
diff --git a/Documentation/ABI/testing/sysfs-bus-iio b/Documentation/ABI/testing/sysfs-bus-iio
index 9a70c31..3befcb1 100644
--- a/Documentation/ABI/testing/sysfs-bus-iio
+++ b/Documentation/ABI/testing/sysfs-bus-iio
@@ -253,6 +253,8 @@ What:		/sys/bus/iio/devices/iio:deviceX/in_temp_offset
 What:		/sys/bus/iio/devices/iio:deviceX/in_pressureY_offset
 What:		/sys/bus/iio/devices/iio:deviceX/in_pressure_offset
 What:		/sys/bus/iio/devices/iio:deviceX/in_humidityrelative_offset
+What:		/sys/bus/iio/devices/iio:deviceX/in_magn_offset
+What:		/sys/bus/iio/devices/iio:deviceX/in_rot_offset
 KernelVersion:	2.6.35
 Contact:	linux-iio@vger.kernel.org
 Description:
@@ -296,6 +298,7 @@ What:		/sys/bus/iio/devices/iio:deviceX/in_pressureY_scale
 What:		/sys/bus/iio/devices/iio:deviceX/in_pressure_scale
 What:		/sys/bus/iio/devices/iio:deviceX/in_humidityrelative_scale
 What:		/sys/bus/iio/devices/iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_scale
+What:		/sys/bus/iio/devices/iio:deviceX/in_illuminance_scale
 KernelVersion:	2.6.35
 Contact:	linux-iio@vger.kernel.org
 Description:
@@ -336,6 +339,7 @@ what		/sys/bus/iio/devices/iio:deviceX/in_illuminance0_calibscale
 what		/sys/bus/iio/devices/iio:deviceX/in_proximity0_calibscale
 What:		/sys/bus/iio/devices/iio:deviceX/in_pressureY_calibscale
 What:		/sys/bus/iio/devices/iio:deviceX/in_pressure_calibscale
+What:		/sys/bus/iio/devices/iio:deviceX/in_illuminance_calibscale
 KernelVersion:	2.6.35
 Contact:	linux-iio@vger.kernel.org
 Description:
@@ -347,7 +351,7 @@ What:		/sys/bus/iio/devices/iio:deviceX/in_activity_calibgender
 What:		/sys/bus/iio/devices/iio:deviceX/in_energy_calibgender
 What:		/sys/bus/iio/devices/iio:deviceX/in_distance_calibgender
 What:		/sys/bus/iio/devices/iio:deviceX/in_velocity_calibgender
-KernelVersion:	3.20
+KernelVersion:	4.0
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Gender of the user (e.g.: male, female) used by some pedometers
@@ -358,7 +362,7 @@ What:		/sys/bus/iio/devices/iio:deviceX/in_activity_calibgender_available
 What:		/sys/bus/iio/devices/iio:deviceX/in_energy_calibgender_available
 What:		/sys/bus/iio/devices/iio:deviceX/in_distance_calibgender_available
 What:		/sys/bus/iio/devices/iio:deviceX/in_velocity_calibgender_available
-KernelVersion:	3.20
+KernelVersion:	4.0
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Lists all available gender values (e.g.: male, female).
@@ -375,7 +379,7 @@ Description:
 		type.
 
 What:		/sys/bus/iio/devices/iio:deviceX/in_energy_calibweight
-KernelVersion:	3.20
+KernelVersion:	4.0
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Weight of the user (in kg). It is needed by some pedometers
@@ -612,6 +616,8 @@ Description:
 		a given event type is enabled a future point (and not those for
 		whatever event was previously enabled).
 
+What:		/sys/.../events/in_accel_thresh_rising_value
+What:		/sys/.../events/in_accel_thresh_falling_value
 What:		/sys/.../events/in_accel_x_raw_thresh_rising_value
 What:		/sys/.../events/in_accel_x_raw_thresh_falling_value
 What:		/sys/.../events/in_accel_y_raw_thresh_rising_value
@@ -661,6 +667,24 @@ Description:
 		value is in raw device units or in processed units (as _raw
 		and _input do on sysfs direct channel read attributes).
 
+What:		/sys/.../events/in_accel_scale
+What:		/sys/.../events/in_accel_peak_scale
+What:		/sys/.../events/in_anglvel_scale
+What:		/sys/.../events/in_magn_scale
+What:		/sys/.../events/in_rot_from_north_magnetic_scale
+What:		/sys/.../events/in_rot_from_north_true_scale
+What:		/sys/.../events/in_voltage_scale
+What:		/sys/.../events/in_voltage_supply_scale
+What:		/sys/.../events/in_temp_scale
+What:		/sys/.../events/in_illuminance_scale
+What:		/sys/.../events/in_proximity_scale
+KernelVersion:	3.21
+Contact:	linux-iio@vger.kernel.org
+Description:
+                Specifies the conversion factor from the standard units
+                to device specific units used to set the event trigger
+                threshold.
+
 What:		/sys/.../events/in_accel_x_thresh_rising_hysteresis
 What:		/sys/.../events/in_accel_x_thresh_falling_hysteresis
 What:		/sys/.../events/in_accel_x_thresh_either_hysteresis
@@ -776,7 +800,7 @@ Description:
 
 What:		/sys/.../events/in_accel_x_thresh_rising_period
 What:		/sys/.../events/in_accel_x_thresh_falling_period
-hat:		/sys/.../events/in_accel_x_roc_rising_period
+What:		/sys/.../events/in_accel_x_roc_rising_period
 What:		/sys/.../events/in_accel_x_roc_falling_period
 What:		/sys/.../events/in_accel_y_thresh_rising_period
 What:		/sys/.../events/in_accel_y_thresh_falling_period
@@ -923,7 +947,7 @@ Description:
 		this type.
 
 What:		/sys/.../events/in_steps_change_en
-KernelVersion:	3.20
+KernelVersion:	4.0
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Event generated when channel passes a threshold on the absolute
@@ -932,7 +956,7 @@ Description:
 		in_steps_change_value.
 
 What:		/sys/.../events/in_steps_change_value
-KernelVersion:	3.20
+KernelVersion:	4.0
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Specifies the value of change threshold that the
@@ -997,6 +1021,7 @@ What:		/sys/.../iio:deviceX/scan_elements/in_incli_y_en
 What:		/sys/.../iio:deviceX/scan_elements/in_pressureY_en
 What:		/sys/.../iio:deviceX/scan_elements/in_pressure_en
 What:		/sys/.../iio:deviceX/scan_elements/in_rot_quaternion_en
+What:		/sys/.../iio:deviceX/scan_elements/in_proximity_en
 KernelVersion:	2.6.37
 Contact:	linux-iio@vger.kernel.org
 Description:
@@ -1013,6 +1038,7 @@ What:		/sys/.../iio:deviceX/scan_elements/in_timestamp_type
 What:		/sys/.../iio:deviceX/scan_elements/in_pressureY_type
 What:		/sys/.../iio:deviceX/scan_elements/in_pressure_type
 What:		/sys/.../iio:deviceX/scan_elements/in_rot_quaternion_type
+What:		/sys/.../iio:deviceX/scan_elements/in_proximity_type
 KernelVersion:	2.6.37
 Contact:	linux-iio@vger.kernel.org
 Description:
@@ -1064,6 +1090,7 @@ What:		/sys/.../iio:deviceX/scan_elements/in_timestamp_index
 What:		/sys/.../iio:deviceX/scan_elements/in_pressureY_index
 What:		/sys/.../iio:deviceX/scan_elements/in_pressure_index
 What:		/sys/.../iio:deviceX/scan_elements/in_rot_quaternion_index
+What:		/sys/.../iio:deviceX/scan_elements/in_proximity_index
 KernelVersion:	2.6.37
 Contact:	linux-iio@vger.kernel.org
 Description:
@@ -1104,7 +1131,7 @@ Description:
 
 What:		/sys/.../iio:deviceX/in_energy_input
 What:		/sys/.../iio:deviceX/in_energy_raw
-KernelVersion:	3.20
+KernelVersion:	4.0
 Contact:	linux-iio@vger.kernel.org
 Description:
 		This attribute is used to read the energy value reported by the
@@ -1113,7 +1140,7 @@ Description:
 
 What:		/sys/.../iio:deviceX/in_distance_input
 What:		/sys/.../iio:deviceX/in_distance_raw
-KernelVersion:	3.20
+KernelVersion:	4.0
 Contact:	linux-iio@vger.kernel.org
 Description:
 		This attribute is used to read the distance covered by the user
@@ -1143,9 +1170,13 @@ Description:
 		values should behave in the same way as a distance, i.e. lower
 		values indicate something is closer to the sensor.
 
+What:		/sys/.../iio:deviceX/in_illuminance_input
+What:		/sys/.../iio:deviceX/in_illuminance_raw
 What:		/sys/.../iio:deviceX/in_illuminanceY_input
 What:		/sys/.../iio:deviceX/in_illuminanceY_raw
 What:		/sys/.../iio:deviceX/in_illuminanceY_mean_raw
+What:		/sys/.../iio:deviceX/in_illuminance_ir_raw
+What:		/sys/.../iio:deviceX/in_illuminance_clear_raw
 KernelVersion:	3.4
 Contact:	linux-iio@vger.kernel.org
 Description:
@@ -1174,7 +1205,7 @@ Description:
 		seconds.
 
 What:		/sys/.../iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_integration_time
-KernelVersion:	3.20
+KernelVersion:	4.0
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Number of seconds in which to compute speed.
@@ -1236,7 +1267,7 @@ Description:
 		Units after application of scale are m/s.
 
 What:		/sys/.../iio:deviceX/in_steps_debounce_count
-KernelVersion:	3.20
+KernelVersion:	4.0
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Specifies the number of steps that must occur within
@@ -1244,8 +1275,92 @@ Description:
 		consumer is making steps.
 
 What:		/sys/.../iio:deviceX/in_steps_debounce_time
-KernelVersion:	3.20
+KernelVersion:	4.0
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Specifies number of seconds in which we compute the steps
 		that occur in order to decide if the consumer is making steps.
+
+What:		/sys/bus/iio/devices/iio:deviceX/buffer/watermark
+KernelVersion:	4.2
+Contact:	linux-iio@vger.kernel.org
+Description:
+		A single positive integer specifying the maximum number of scan
+		elements to wait for.
+		Poll will block until the watermark is reached.
+		Blocking read will wait until the minimum between the requested
+		read amount or the low water mark is available.
+		Non-blocking read will retrieve the available samples from the
+		buffer even if there are less samples then watermark level. This
+		allows the application to block on poll with a timeout and read
+		the available samples after the timeout expires and thus have a
+		maximum delay guarantee.
+
+What:		/sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_enabled
+KernelVersion: 4.2
+Contact:	linux-iio@vger.kernel.org
+Description:
+		A read-only boolean value that indicates if the hardware fifo is
+		currently enabled or disabled. If the device does not have a
+		hardware fifo this entry is not present.
+		The hardware fifo is enabled when the buffer is enabled if the
+		current hardware fifo watermark level is set and other current
+		device settings allows it (e.g. if a trigger is set that samples
+		data differently that the hardware fifo does then hardware fifo
+		will not enabled).
+		If the hardware fifo is enabled and the level of the hardware
+		fifo reaches the hardware fifo watermark level the device will
+		flush its hardware fifo to the device buffer. Doing a non
+		blocking read on the device when no samples are present in the
+		device buffer will also force a flush.
+		When the hardware fifo is enabled there is no need to use a
+		trigger to use buffer mode since the watermark settings
+		guarantees that the hardware fifo is flushed to the device
+		buffer.
+
+What:		/sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_watermark
+KernelVersion: 4.2
+Contact:	linux-iio@vger.kernel.org
+Description:
+		Read-only entry that contains a single integer specifying the
+		current watermark level for the hardware fifo. If the device
+		does not have a hardware fifo this entry is not present.
+		The watermark level for the hardware fifo is set by the driver
+		based on the value set by the user in buffer/watermark but
+		taking into account hardware limitations (e.g. most hardware
+		buffers are limited to 32-64 samples, some hardware buffers
+		watermarks are fixed or have minimum levels).  A value of 0
+		means that the hardware watermark is unset.
+
+What:		/sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_watermark_min
+KernelVersion: 4.2
+Contact:       linux-iio@vger.kernel.org
+Description:
+		A single positive integer specifying the minimum watermark level
+		for the hardware fifo of this device. If the device does not
+		have a hardware fifo this entry is not present.
+		If the user sets buffer/watermark to a value less than this one,
+		then the hardware watermark will remain unset.
+
+What:	       /sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_watermark_max
+KernelVersion: 4.2
+Contact:       linux-iio@vger.kernel.org
+Description:
+		A single positive integer specifying the maximum watermark level
+		for the hardware fifo of this device. If the device does not
+		have a hardware fifo this entry is not present.
+		If the user sets buffer/watermark to a value greater than this
+		one, then the hardware watermark will be capped at this value.
+
+What:	       /sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_watermark_available
+KernelVersion: 4.2
+Contact:       linux-iio@vger.kernel.org
+Description:
+		A list of positive integers specifying the available watermark
+		levels for the hardware fifo. This entry is optional and if it
+		is not present it means that all the values between
+		hwfifo_watermark_min and hwfifo_watermark_max are supported.
+		If the user sets buffer/watermark to a value greater than
+		hwfifo_watermak_min but not equal to any of the values in this
+		list, the driver will chose an appropriate value for the
+		hardware fifo watermark level.
diff --git a/Documentation/CodeOfConflict b/Documentation/CodeOfConflict
new file mode 100644
index 0000000..1684d0b
--- /dev/null
+++ b/Documentation/CodeOfConflict
@@ -0,0 +1,27 @@
+Code of Conflict
+----------------
+
+The Linux kernel development effort is a very personal process compared
+to "traditional" ways of developing software.  Your code and ideas
+behind it will be carefully reviewed, often resulting in critique and
+criticism.  The review will almost always require improvements to the
+code before it can be included in the kernel.  Know that this happens
+because everyone involved wants to see the best possible solution for
+the overall success of Linux.  This development process has been proven
+to create the most robust operating system kernel ever, and we do not
+want to do anything to cause the quality of submission and eventual
+result to ever decrease.
+
+If however, anyone feels personally abused, threatened, or otherwise
+uncomfortable due to this process, that is not acceptable.  If so,
+please contact the Linux Foundation's Technical Advisory Board at
+<tab@lists.linux-foundation.org>, or the individual members, and they
+will work to resolve the issue to the best of their ability.  For more
+information on who is on the Technical Advisory Board and what their
+role is, please see:
+	http://www.linuxfoundation.org/programs/advisory-councils/tab
+
+As a reviewer of code, please strive to keep things civil and focused on
+the technical issues involved.  We are all humans, and frustrations can
+be high on both sides of the process.  Try to keep in mind the immortal
+words of Bill and Ted, "Be excellent to each other."
diff --git a/Documentation/PCI/pci.txt b/Documentation/PCI/pci.txt
index 9518006..123881f 100644
--- a/Documentation/PCI/pci.txt
+++ b/Documentation/PCI/pci.txt
@@ -564,14 +564,14 @@ to be handled by platform and generic code, not individual drivers.
 8. Vendor and device identifications
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
-One is not required to add new device ids to include/linux/pci_ids.h.
-Please add PCI_VENDOR_ID_xxx for vendors and a hex constant for device ids.
+Do not add new device or vendor IDs to include/linux/pci_ids.h unless they
+are shared across multiple drivers.  You can add private definitions in
+your driver if they're helpful, or just use plain hex constants.
 
-PCI_VENDOR_ID_xxx constants are re-used. The device ids are arbitrary
-hex numbers (vendor controlled) and normally used only in a single
-location, the pci_device_id table.
+The device IDs are arbitrary hex numbers (vendor controlled) and normally used
+only in a single location, the pci_device_id table.
 
-Please DO submit new vendor/device ids to pciids.sourceforge.net project.
+Please DO submit new vendor/device IDs to http://pciids.sourceforge.net/.
 
 
 
diff --git a/Documentation/acpi/apei/einj.txt b/Documentation/acpi/apei/einj.txt
index f51861b..e550c8b 100644
--- a/Documentation/acpi/apei/einj.txt
+++ b/Documentation/acpi/apei/einj.txt
@@ -1,129 +1,177 @@
 			APEI Error INJection
 			~~~~~~~~~~~~~~~~~~~~
 
-EINJ provides a hardware error injection mechanism
-It is very useful for debugging and testing of other APEI and RAS features.
+EINJ provides a hardware error injection mechanism. It is very useful
+for debugging and testing APEI and RAS features in general.
 
-To use EINJ, make sure the following are enabled in your kernel
+You need to check whether your BIOS supports EINJ first. For that, look
+for early boot messages similar to this one:
+
+ACPI: EINJ 0x000000007370A000 000150 (v01 INTEL           00000001 INTL 00000001)
+
+which shows that the BIOS is exposing an EINJ table - it is the
+mechanism through which the injection is done.
+
+Alternatively, look in /sys/firmware/acpi/tables for an "EINJ" file,
+which is a different representation of the same thing.
+
+It doesn't necessarily mean that EINJ is not supported if those above
+don't exist: before you give up, go into BIOS setup to see if the BIOS
+has an option to enable error injection. Look for something called WHEA
+or similar. Often, you need to enable an ACPI5 support option prior, in
+order to see the APEI,EINJ,... functionality supported and exposed by
+the BIOS menu.
+
+To use EINJ, make sure the following are options enabled in your kernel
 configuration:
 
 CONFIG_DEBUG_FS
 CONFIG_ACPI_APEI
 CONFIG_ACPI_APEI_EINJ
 
-The user interface of EINJ is debug file system, under the
-directory apei/einj. The following files are provided.
+The EINJ user interface is in <debugfs mount point>/apei/einj.
+
+The following files belong to it:
 
 - available_error_type
-  Reading this file returns the error injection capability of the
-  platform, that is, which error types are supported. The error type
-  definition is as follow, the left field is the error type value, the
-  right field is error description.
-
-    0x00000001	Processor Correctable
-    0x00000002	Processor Uncorrectable non-fatal
-    0x00000004	Processor Uncorrectable fatal
-    0x00000008  Memory Correctable
-    0x00000010  Memory Uncorrectable non-fatal
-    0x00000020  Memory Uncorrectable fatal
-    0x00000040	PCI Express Correctable
-    0x00000080	PCI Express Uncorrectable fatal
-    0x00000100	PCI Express Uncorrectable non-fatal
-    0x00000200	Platform Correctable
-    0x00000400	Platform Uncorrectable non-fatal
-    0x00000800	Platform Uncorrectable fatal
-
-  The format of file contents are as above, except there are only the
-  available error type lines.
+
+  This file shows which error types are supported:
+
+  Error Type Value	Error Description
+  ================	=================
+  0x00000001		Processor Correctable
+  0x00000002		Processor Uncorrectable non-fatal
+  0x00000004		Processor Uncorrectable fatal
+  0x00000008		Memory Correctable
+  0x00000010		Memory Uncorrectable non-fatal
+  0x00000020		Memory Uncorrectable fatal
+  0x00000040		PCI Express Correctable
+  0x00000080		PCI Express Uncorrectable fatal
+  0x00000100		PCI Express Uncorrectable non-fatal
+  0x00000200		Platform Correctable
+  0x00000400		Platform Uncorrectable non-fatal
+  0x00000800		Platform Uncorrectable fatal
+
+  The format of the file contents are as above, except present are only
+  the available error types.
 
 - error_type
-  This file is used to set the error type value. The error type value
-  is defined in "available_error_type" description.
+
+  Set the value of the error type being injected. Possible error types
+  are defined in the file available_error_type above.
 
 - error_inject
-  Write any integer to this file to trigger the error
-  injection. Before this, please specify all necessary error
-  parameters.
+
+  Write any integer to this file to trigger the error injection. Make
+  sure you have specified all necessary error parameters, i.e. this
+  write should be the last step when injecting errors.
 
 - flags
-  Present for kernel version 3.13 and above. Used to specify which
-  of param{1..4} are valid and should be used by BIOS during injection.
-  Value is a bitmask as specified in ACPI5.0 spec for the
+
+  Present for kernel versions 3.13 and above. Used to specify which
+  of param{1..4} are valid and should be used by the firmware during
+  injection. Value is a bitmask as specified in ACPI5.0 spec for the
   SET_ERROR_TYPE_WITH_ADDRESS data structure:
-	Bit 0 - Processor APIC field valid (see param3 below)
-	Bit 1 - Memory address and mask valid (param1 and param2)
-	Bit 2 - PCIe (seg,bus,dev,fn) valid (param4 below)
-  If set to zero, legacy behaviour is used where the type of injection
-  specifies just one bit set, and param1 is multiplexed.
+
+	Bit 0 - Processor APIC field valid (see param3 below).
+	Bit 1 - Memory address and mask valid (param1 and param2).
+	Bit 2 - PCIe (seg,bus,dev,fn) valid (see param4 below).
+
+  If set to zero, legacy behavior is mimicked where the type of
+  injection specifies just one bit set, and param1 is multiplexed.
 
 - param1
-  This file is used to set the first error parameter value. Effect of
-  parameter depends on error_type specified. For example, if error
-  type is memory related type, the param1 should be a valid physical
-  memory address. [Unless "flag" is set - see above]
+
+  This file is used to set the first error parameter value. Its effect
+  depends on the error type specified in error_type. For example, if
+  error type is memory related type, the param1 should be a valid
+  physical memory address. [Unless "flag" is set - see above]
 
 - param2
-  This file is used to set the second error parameter value. Effect of
-  parameter depends on error_type specified. For example, if error
-  type is memory related type, the param2 should be a physical memory
-  address mask. Linux requires page or narrower granularity, say,
-  0xfffffffffffff000.
+
+  Same use as param1 above. For example, if error type is of memory
+  related type, then param2 should be a physical memory address mask.
+  Linux requires page or narrower granularity, say, 0xfffffffffffff000.
 
 - param3
-  Used when the 0x1 bit is set in "flag" to specify the APIC id
+
+  Used when the 0x1 bit is set in "flags" to specify the APIC id
 
 - param4
-  Used when the 0x4 bit is set in "flag" to specify target PCIe device
+  Used when the 0x4 bit is set in "flags" to specify target PCIe device
 
 - notrigger
-  The EINJ mechanism is a two step process. First inject the error, then
-  perform some actions to trigger it. Setting "notrigger" to 1 skips the
-  trigger phase, which *may* allow the user to cause the error in some other
-  context by a simple access to the cpu, memory location, or device that is
-  the target of the error injection. Whether this actually works depends
-  on what operations the BIOS actually includes in the trigger phase.
-
-BIOS versions based in the ACPI 4.0 specification have limited options
-to control where the errors are injected.  Your BIOS may support an
-extension (enabled with the param_extension=1 module parameter, or
-boot command line einj.param_extension=1). This allows the address
-and mask for memory injections to be specified by the param1 and
-param2 files in apei/einj.
-
-BIOS versions using the ACPI 5.0 specification have more control over
-the target of the injection. For processor related errors (type 0x1,
-0x2 and 0x4) the APICID of the target should be provided using the
-param1 file in apei/einj. For memory errors (type 0x8, 0x10 and 0x20)
-the address is set using param1 with a mask in param2 (0x0 is equivalent
-to all ones). For PCI express errors (type 0x40, 0x80 and 0x100) the
-segment, bus, device and function are specified using param1:
+
+  The error injection mechanism is a two-step process. First inject the
+  error, then perform some actions to trigger it. Setting "notrigger"
+  to 1 skips the trigger phase, which *may* allow the user to cause the
+  error in some other context by a simple access to the CPU, memory
+  location, or device that is the target of the error injection. Whether
+  this actually works depends on what operations the BIOS actually
+  includes in the trigger phase.
+
+BIOS versions based on the ACPI 4.0 specification have limited options
+in controlling where the errors are injected. Your BIOS may support an
+extension (enabled with the param_extension=1 module parameter, or boot
+command line einj.param_extension=1). This allows the address and mask
+for memory injections to be specified by the param1 and param2 files in
+apei/einj.
+
+BIOS versions based on the ACPI 5.0 specification have more control over
+the target of the injection. For processor-related errors (type 0x1, 0x2
+and 0x4), you can set flags to 0x3 (param3 for bit 0, and param1 and
+param2 for bit 1) so that you have more information added to the error
+signature being injected. The actual data passed is this:
+
+	memory_address = param1;
+	memory_address_range = param2;
+	apicid = param3;
+	pcie_sbdf = param4;
+
+For memory errors (type 0x8, 0x10 and 0x20) the address is set using
+param1 with a mask in param2 (0x0 is equivalent to all ones). For PCI
+express errors (type 0x40, 0x80 and 0x100) the segment, bus, device and
+function are specified using param1:
 
          31     24 23    16 15    11 10      8  7        0
 	+-------------------------------------------------+
 	| segment |   bus  | device | function | reserved |
 	+-------------------------------------------------+
 
-An ACPI 5.0 BIOS may also allow vendor specific errors to be injected.
+Anyway, you get the idea, if there's doubt just take a look at the code
+in drivers/acpi/apei/einj.c.
+
+An ACPI 5.0 BIOS may also allow vendor-specific errors to be injected.
 In this case a file named vendor will contain identifying information
 from the BIOS that hopefully will allow an application wishing to use
-the vendor specific extension to tell that they are running on a BIOS
+the vendor-specific extension to tell that they are running on a BIOS
 that supports it. All vendor extensions have the 0x80000000 bit set in
 error_type. A file vendor_flags controls the interpretation of param1
 and param2 (1 = PROCESSOR, 2 = MEMORY, 4 = PCI). See your BIOS vendor
 documentation for details (and expect changes to this API if vendors
 creativity in using this feature expands beyond our expectations).
 
-Example:
+
+An error injection example:
+
 # cd /sys/kernel/debug/apei/einj
 # cat available_error_type		# See which errors can be injected
 0x00000002	Processor Uncorrectable non-fatal
 0x00000008	Memory Correctable
 0x00000010	Memory Uncorrectable non-fatal
 # echo 0x12345000 > param1		# Set memory address for injection
-# echo 0xfffffffffffff000 > param2	# Mask - anywhere in this page
+# echo $((-1 << 12)) > param2		# Mask 0xfffffffffffff000 - anywhere in this page
 # echo 0x8 > error_type			# Choose correctable memory error
 # echo 1 > error_inject			# Inject now
 
+You should see something like this in dmesg:
+
+[22715.830801] EDAC sbridge MC3: HANDLING MCE MEMORY ERROR
+[22715.834759] EDAC sbridge MC3: CPU 0: Machine Check Event: 0 Bank 7: 8c00004000010090
+[22715.834759] EDAC sbridge MC3: TSC 0
+[22715.834759] EDAC sbridge MC3: ADDR 12345000 EDAC sbridge MC3: MISC 144780c86
+[22715.834759] EDAC sbridge MC3: PROCESSOR 0:306e7 TIME 1422553404 SOCKET 0 APIC 0
+[22716.616173] EDAC MC3: 1 CE memory read error on CPU_SrcID#0_Channel#0_DIMM#0 (channel:0 slot:0 page:0x12345 offset:0x0 grain:32 syndrome:0x0 -  area:DRAM err_code:0001:0090 socket:0 channel_mask:1 rank:0)
 
 For more information about EINJ, please refer to ACPI specification
 version 4.0, section 17.5 and ACPI 5.0, section 18.6.
diff --git a/Documentation/cgroups/cpusets.txt b/Documentation/cgroups/cpusets.txt
index f2235a1..fdf7dff 100644
--- a/Documentation/cgroups/cpusets.txt
+++ b/Documentation/cgroups/cpusets.txt
@@ -392,8 +392,10 @@ Put simply, it costs less to balance between two smaller sched domains
 than one big one, but doing so means that overloads in one of the
 two domains won't be load balanced to the other one.
 
-By default, there is one sched domain covering all CPUs, except those
-marked isolated using the kernel boot time "isolcpus=" argument.
+By default, there is one sched domain covering all CPUs, including those
+marked isolated using the kernel boot time "isolcpus=" argument. However,
+the isolated CPUs will not participate in load balancing, and will not
+have tasks running on them unless explicitly assigned.
 
 This default load balancing across all CPUs is not well suited for
 the following two situations:
@@ -465,6 +467,10 @@ such partially load balanced cpusets, as they may be artificially
 constrained to some subset of the CPUs allowed to them, for lack of
 load balancing to the other CPUs.
 
+CPUs in "cpuset.isolcpus" were excluded from load balancing by the
+isolcpus= kernel boot option, and will never be load balanced regardless
+of the value of "cpuset.sched_load_balance" in any cpuset.
+
 1.7.1 sched_load_balance implementation details.
 ------------------------------------------------
 
diff --git a/Documentation/cgroups/unified-hierarchy.txt b/Documentation/cgroups/unified-hierarchy.txt
index 71daa35..eb102fb 100644
--- a/Documentation/cgroups/unified-hierarchy.txt
+++ b/Documentation/cgroups/unified-hierarchy.txt
@@ -404,8 +404,8 @@ supported and the interface files "release_agent" and
   be understood as an underflow into the highest possible value, -2 or
   -10M etc. do not work, so it's not consistent.
 
-  memory.low, memory.high, and memory.max will use the string
-  "infinity" to indicate and set the highest possible value.
+  memory.low, memory.high, and memory.max will use the string "max" to
+  indicate and set the highest possible value.
 
 5. Planned Changes
 
diff --git a/Documentation/devicetree/bindings/arm/exynos/power_domain.txt b/Documentation/devicetree/bindings/arm/exynos/power_domain.txt
index f4445e5..1e09703 100644
--- a/Documentation/devicetree/bindings/arm/exynos/power_domain.txt
+++ b/Documentation/devicetree/bindings/arm/exynos/power_domain.txt
@@ -22,6 +22,8 @@ Optional Properties:
 	- pclkN, clkN: Pairs of parent of input clock and input clock to the
 		devices in this power domain. Maximum of 4 pairs (N = 0 to 3)
 		are supported currently.
+- power-domains: phandle pointing to the parent power domain, for more details
+		 see Documentation/devicetree/bindings/power/power_domain.txt
 
 Node of a device using power domains must have a power-domains property
 defined with a phandle to respective power domain.
diff --git a/Documentation/devicetree/bindings/arm/freescale/fsl,vf610-mscm-cpucfg.txt b/Documentation/devicetree/bindings/arm/freescale/fsl,vf610-mscm-cpucfg.txt
new file mode 100644
index 0000000..44aa3c4
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/freescale/fsl,vf610-mscm-cpucfg.txt
@@ -0,0 +1,14 @@
+Freescale Vybrid Miscellaneous System Control - CPU Configuration
+
+The MSCM IP contains multiple sub modules, this binding describes the first
+block of registers which contains CPU configuration information.
+
+Required properties:
+- compatible:	"fsl,vf610-mscm-cpucfg", "syscon"
+- reg:		the register range of the MSCM CPU configuration registers
+
+Example:
+	mscm_cpucfg: cpucfg@40001000 {
+		compatible = "fsl,vf610-mscm-cpucfg", "syscon";
+		reg = <0x40001000 0x800>;
+	}
diff --git a/Documentation/devicetree/bindings/arm/freescale/fsl,vf610-mscm-ir.txt b/Documentation/devicetree/bindings/arm/freescale/fsl,vf610-mscm-ir.txt
new file mode 100644
index 0000000..669808b2a
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/freescale/fsl,vf610-mscm-ir.txt
@@ -0,0 +1,33 @@
+Freescale Vybrid Miscellaneous System Control - Interrupt Router
+
+The MSCM IP contains multiple sub modules, this binding describes the second
+block of registers which control the interrupt router. The interrupt router
+allows to configure the recipient of each peripheral interrupt. Furthermore
+it controls the directed processor interrupts. The module is available in all
+Vybrid SoC's but is only really useful in dual core configurations (VF6xx
+which comes with a Cortex-A5/Cortex-M4 combination).
+
+Required properties:
+- compatible:		"fsl,vf610-mscm-ir"
+- reg:			the register range of the MSCM Interrupt Router
+- fsl,cpucfg:		The handle to the MSCM CPU configuration node, required
+			to get the current CPU ID
+- interrupt-controller:	Identifies the node as an interrupt controller
+- #interrupt-cells:	Two cells, interrupt number and cells.
+			The hardware interrupt number according to interrupt
+			assignment of the interrupt router is required.
+			Flags get passed only when using GIC as parent. Flags
+			encoding as documented by the GIC bindings.
+- interrupt-parent:	Should be the phandle for the interrupt controller of
+			the CPU the device tree is intended to be used on. This
+			is either the node of the GIC or NVIC controller.
+
+Example:
+	mscm_ir: interrupt-controller@40001800 {
+		compatible = "fsl,vf610-mscm-ir";
+		reg = <0x40001800 0x400>;
+		fsl,cpucfg = <&mscm_cpucfg>;
+		interrupt-controller;
+		#interrupt-cells = <2>;
+		interrupt-parent = <&intc>;
+	}
diff --git a/Documentation/devicetree/bindings/arm/gic.txt b/Documentation/devicetree/bindings/arm/gic.txt
index c97484b..1e0d212 100644
--- a/Documentation/devicetree/bindings/arm/gic.txt
+++ b/Documentation/devicetree/bindings/arm/gic.txt
@@ -56,11 +56,6 @@ Optional
   regions, used when the GIC doesn't have banked registers. The offset is
   cpu-offset * cpu-nr.
 
-- arm,routable-irqs : Total number of gic irq inputs which are not directly
-		  connected from the peripherals, but are routed dynamically
-		  by a crossbar/multiplexer preceding the GIC. The GIC irq
-		  input line is assigned dynamically when the corresponding
-		  peripheral's crossbar line is mapped.
 Example:
 
 	intc: interrupt-controller@fff11000 {
@@ -68,7 +63,6 @@ Example:
 		#interrupt-cells = <3>;
 		#address-cells = <1>;
 		interrupt-controller;
-		arm,routable-irqs = <160>;
 		reg = <0xfff11000 0x1000>,
 		      <0xfff10100 0x100>;
 	};
diff --git a/Documentation/devicetree/bindings/arm/omap/crossbar.txt b/Documentation/devicetree/bindings/arm/omap/crossbar.txt
index 4139db3..a9b28d7 100644
--- a/Documentation/devicetree/bindings/arm/omap/crossbar.txt
+++ b/Documentation/devicetree/bindings/arm/omap/crossbar.txt
@@ -9,7 +9,9 @@ inputs.
 Required properties:
 - compatible : Should be "ti,irq-crossbar"
 - reg: Base address and the size of the crossbar registers.
-- ti,max-irqs: Total number of irqs available at the interrupt controller.
+- interrupt-controller: indicates that this block is an interrupt controller.
+- interrupt-parent: the interrupt controller this block is connected to.
+- ti,max-irqs: Total number of irqs available at the parent interrupt controller.
 - ti,max-crossbar-sources: Maximum number of crossbar sources that can be routed.
 - ti,reg-size: Size of a individual register in bytes. Every individual
 	    register is assumed to be of same size. Valid sizes are 1, 2, 4.
@@ -27,13 +29,13 @@ Optional properties:
   when the interrupt controller irq is unused (when not provided, default is 0)
 
 Examples:
-		crossbar_mpu: @4a020000 {
+		crossbar_mpu: crossbar@4a002a48 {
 			compatible = "ti,irq-crossbar";
 			reg = <0x4a002a48 0x130>;
 			ti,max-irqs = <160>;
 			ti,max-crossbar-sources = <400>;
 			ti,reg-size = <2>;
-			ti,irqs-reserved = <0 1 2 3 5 6 131 132 139 140>;
+			ti,irqs-reserved = <0 1 2 3 5 6 131 132>;
 			ti,irqs-skip = <10 133 139 140>;
 		};
 
@@ -44,10 +46,6 @@ Documentation/devicetree/bindings/arm/gic.txt for further details.
 
 An interrupt consumer on an SoC using crossbar will use:
 	interrupts = <GIC_SPI request_number interrupt_level>
-When the request number is between 0 to that described by
-"ti,max-crossbar-sources", it is assumed to be a crossbar mapping. If the
-request_number is greater than "ti,max-crossbar-sources", then it is mapped as a
-quirky hardware mapping direct to GIC.
 
 Example:
 	device_x@0x4a023000 {
@@ -55,9 +53,3 @@ Example:
 		interrupts = <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>;
 		...
 	};
-
-	device_y@0x4a033000 {
-		/* Direct mapped GIC SPI 1 used */
-		interrupts = <GIC_SPI DIRECT_IRQ(1) IRQ_TYPE_LEVEL_HIGH>;
-		...
-	};
diff --git a/Documentation/devicetree/bindings/arm/samsung/pmu.txt b/Documentation/devicetree/bindings/arm/samsung/pmu.txt
index 67b2113..2d6356d 100644
--- a/Documentation/devicetree/bindings/arm/samsung/pmu.txt
+++ b/Documentation/devicetree/bindings/arm/samsung/pmu.txt
@@ -29,10 +29,27 @@ Properties:
  - clocks : list of phandles and specifiers to all input clocks listed in
 		clock-names property.
 
+Optional properties:
+
+Some PMUs are capable of behaving as an interrupt controller (mostly
+to wake up a suspended PMU). In which case, they can have the
+following properties:
+
+- interrupt-controller: indicate that said PMU is an interrupt controller
+
+- #interrupt-cells: must be identical to the that of the parent interrupt
+  controller.
+
+- interrupt-parent: a phandle indicating which interrupt controller
+  this PMU signals interrupts to.
+
 Example :
 pmu_system_controller: system-controller@10040000 {
 	compatible = "samsung,exynos5250-pmu", "syscon";
 	reg = <0x10040000 0x5000>;
+	interrupt-controller;
+	#interrupt-cells = <3>;
+	interrupt-parent = <&gic>;
 	#clock-cells = <1>;
 	clock-names = "clkout0", "clkout1", "clkout2", "clkout3",
 			"clkout4", "clkout8", "clkout9";
diff --git a/Documentation/devicetree/bindings/arm/sti.txt b/Documentation/devicetree/bindings/arm/sti.txt
index d70ec35..8d27f6b 100644
--- a/Documentation/devicetree/bindings/arm/sti.txt
+++ b/Documentation/devicetree/bindings/arm/sti.txt
@@ -13,6 +13,10 @@ Boards with the ST STiH407 SoC shall have the following properties:
 Required root node property:
 compatible = "st,stih407";
 
+Boards with the ST STiH410 SoC shall have the following properties:
+Required root node property:
+compatible = "st,stih410";
+
 Boards with the ST STiH418 SoC shall have the following properties:
 Required root node property:
 compatible = "st,stih418";
diff --git a/Documentation/devicetree/bindings/ata/ahci-st.txt b/Documentation/devicetree/bindings/ata/ahci-st.txt
index 0574a77..e1d01df 100644
--- a/Documentation/devicetree/bindings/ata/ahci-st.txt
+++ b/Documentation/devicetree/bindings/ata/ahci-st.txt
@@ -3,29 +3,48 @@ STMicroelectronics STi SATA controller
 This binding describes a SATA device.
 
 Required properties:
- - compatible	   : Must be "st,sti-ahci"
+ - compatible	   : Must be "st,ahci"
  - reg		   : Physical base addresses and length of register sets
  - interrupts	   : Interrupt associated with the SATA device
  - interrupt-names :   Associated name must be; "hostc"
- - resets	   : The power-down and soft-reset lines of SATA IP
- - reset-names	   :   Associated names must be; "pwr-dwn" and "sw-rst"
  - clocks	   : The phandle for the clock
  - clock-names	   :   Associated name must be; "ahci_clk"
- - phys		   : The phandle for the PHY device
+ - phys		   : The phandle for the PHY port
  - phy-names	   :   Associated name must be; "ahci_phy"
 
+Optional properties:
+ - resets	   : The power-down, soft-reset and power-reset lines of SATA IP
+ - reset-names	   :   Associated names must be; "pwr-dwn", "sw-rst" and "pwr-rst"
+
 Example:
 
+	/* Example for stih416 */
 	sata0: sata@fe380000 {
-		compatible      = "st,sti-ahci";
-		reg             = <0xfe380000 0x1000>;
-		interrupts      = <GIC_SPI 157 IRQ_TYPE_NONE>;
-		interrupt-names = "hostc";
-		phys	        = <&miphy365x_phy MIPHY_PORT_0 MIPHY_TYPE_SATA>;
-		phy-names       = "ahci_phy";
-		resets	        = <&powerdown STIH416_SATA0_POWERDOWN>,
+		compatible	= "st,ahci";
+		reg		= <0xfe380000 0x1000>;
+		interrupts	= <GIC_SPI 157 IRQ_TYPE_NONE>;
+		interrupt-names	= "hostc";
+		phys		= <&phy_port0 PHY_TYPE_SATA>;
+		phy-names	= "ahci_phy";
+		resets		= <&powerdown STIH416_SATA0_POWERDOWN>,
 				  <&softreset STIH416_SATA0_SOFTRESET>;
-		reset-names     = "pwr-dwn", "sw-rst";
-		clocks	        = <&clk_s_a0_ls CLK_ICN_REG>;
-		clock-names     = "ahci_clk";
+		reset-names	= "pwr-dwn", "sw-rst";
+		clocks		= <&clk_s_a0_ls CLK_ICN_REG>;
+		clock-names	= "ahci_clk";
+	};
+
+	/* Example for stih407 family silicon */
+	sata0: sata@9b20000 {
+		compatible	= "st,ahci";
+		reg		= <0x9b20000 0x1000>;
+		interrupts	= <GIC_SPI 159 IRQ_TYPE_NONE>;
+		interrupt-names	= "hostc";
+		phys		= <&phy_port0 PHY_TYPE_SATA>;
+		phy-names	= "ahci_phy";
+		resets		= <&powerdown STIH407_SATA0_POWERDOWN>,
+				  <&softreset STIH407_SATA0_SOFTRESET>,
+				  <&softreset STIH407_SATA0_PWR_SOFTRESET>;
+		reset-names	= "pwr-dwn", "sw-rst", "pwr-rst";
+		clocks		= <&clk_s_c0_flexgen CLK_ICN_REG>;
+		clock-names	= "ahci_clk";
 	};
diff --git a/Documentation/devicetree/bindings/gpio/gpio-fan.txt b/Documentation/devicetree/bindings/gpio/gpio-fan.txt
index 2dd457a..439a743 100644
--- a/Documentation/devicetree/bindings/gpio/gpio-fan.txt
+++ b/Documentation/devicetree/bindings/gpio/gpio-fan.txt
@@ -2,15 +2,20 @@ Bindings for fan connected to GPIO lines
 
 Required properties:
 - compatible : "gpio-fan"
+
+Optional properties:
 - gpios: Specifies the pins that map to bits in the control value,
   ordered MSB-->LSB.
 - gpio-fan,speed-map: A mapping of possible fan RPM speeds and the
   control value that should be set to achieve them. This array
   must have the RPM values in ascending order.
-
-Optional properties:
 - alarm-gpios: This pin going active indicates something is wrong with
   the fan, and a udev event will be fired.
+- cooling-cells: If used as a cooling device, must be <2>
+  Also see: Documentation/devicetree/bindings/thermal/thermal.txt
+  min and max states are derived from the speed-map of the fan.
+
+Note: At least one the "gpios" or "alarm-gpios" properties must be set.
 
 Examples:
 
@@ -23,3 +28,13 @@ Examples:
 				      6000 2>;
 		alarm-gpios = <&gpio1 15 1>;
 	};
+	gpio_fan_cool: gpio_fan {
+		compatible = "gpio-fan";
+		gpios = <&gpio2 14 1
+			 &gpio2 13 1>;
+		gpio-fan,speed-map =	<0    0>,
+					<3000 1>,
+					<6000 2>;
+		alarm-gpios = <&gpio2 15 1>;
+		#cooling-cells = <2>; /* min followed by max */
+	};
diff --git a/Documentation/devicetree/bindings/i2c/i2c-imx.txt b/Documentation/devicetree/bindings/i2c/i2c-imx.txt
index 52d37fd..ce4311d 100644
--- a/Documentation/devicetree/bindings/i2c/i2c-imx.txt
+++ b/Documentation/devicetree/bindings/i2c/i2c-imx.txt
@@ -7,6 +7,7 @@ Required properties:
   - "fsl,vf610-i2c" for I2C compatible with the one integrated on Vybrid vf610 SoC
 - reg : Should contain I2C/HS-I2C registers location and length
 - interrupts : Should contain I2C/HS-I2C interrupt
+- clocks : Should contain the I2C/HS-I2C clock specifier
 
 Optional properties:
 - clock-frequency : Constains desired I2C/HS-I2C bus clock frequency in Hz.
diff --git a/Documentation/devicetree/bindings/iio/adc/da9150-gpadc.txt b/Documentation/devicetree/bindings/iio/adc/da9150-gpadc.txt
new file mode 100644
index 0000000..c07228d
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/da9150-gpadc.txt
@@ -0,0 +1,16 @@
+Dialog Semiconductor DA9150 IIO GPADC bindings
+
+Required properties:
+- compatible: "dlg,da9150-gpadc" for DA9150 IIO GPADC
+- #io-channel-cells: Should be set to <1>
+  (See Documentation/devicetree/bindings/iio/iio-bindings.txt for further info)
+
+For further information on GPADC channels, see device datasheet.
+
+
+Example:
+
+	gpadc: da9150-gpadc {
+		compatible = "dlg,da9150-gpadc";
+		#io-channel-cells = <1>;
+	};
diff --git a/Documentation/devicetree/bindings/iio/adc/mcp320x.txt b/Documentation/devicetree/bindings/iio/adc/mcp320x.txt
new file mode 100644
index 0000000..b851843
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/mcp320x.txt
@@ -0,0 +1,30 @@
+* Microchip Analog to Digital Converter (ADC)
+
+The node for this driver must be a child node of a SPI controller, hence
+all mandatory properties described in
+
+        Documentation/devicetree/bindings/spi/spi-bus.txt
+
+must be specified.
+
+Required properties:
+	- compatible:  	Must be one of the following, depending on the
+			model:
+				"mcp3001"
+				"mcp3002"
+				"mcp3004"
+				"mcp3008"
+				"mcp3201"
+				"mcp3202"
+				"mcp3204"
+				"mcp3208"
+
+
+Examples:
+spi_controller {
+	mcp3x0x@0 {
+		compatible = "mcp3002";
+		reg = <0>;
+		spi-max-frequency = <1000000>;
+	};
+};
diff --git a/Documentation/devicetree/bindings/iio/adc/mcp3422.txt b/Documentation/devicetree/bindings/iio/adc/mcp3422.txt
new file mode 100644
index 0000000..333139c
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/mcp3422.txt
@@ -0,0 +1,17 @@
+* Microchip mcp3422/3/4/6/7/8 chip family (ADC)
+
+Required properties:
+ - compatible: Should be
+	"microchip,mcp3422" or
+	"microchip,mcp3423" or
+	"microchip,mcp3424" or
+	"microchip,mcp3426" or
+	"microchip,mcp3427" or
+	"microchip,mcp3428"
+ - reg: I2C address for the device
+
+Example:
+adc@0 {
+	compatible = "microchip,mcp3424";
+	reg = <0x68>;
+};
diff --git a/Documentation/devicetree/bindings/iio/adc/ti-adc128s052.txt b/Documentation/devicetree/bindings/iio/adc/ti-adc128s052.txt
new file mode 100644
index 0000000..42ca7de
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/ti-adc128s052.txt
@@ -0,0 +1,18 @@
+* Texas Instruments' ADC128S052 ADC chip
+
+Required properties:
+ - compatible: Should be "ti,adc128s052"
+ - reg: spi chip select number for the device
+ - vref-supply: The regulator supply for ADC reference voltage
+
+Recommended properties:
+ - spi-max-frequency: Definition as per
+		Documentation/devicetree/bindings/spi/spi-bus.txt
+
+Example:
+adc@0 {
+	compatible = "ti,adc128s052";
+	reg = <0>;
+	vref-supply = <&vdd_supply>;
+	spi-max-frequency = <1000000>;
+};
diff --git a/Documentation/devicetree/bindings/iio/st-sensors.txt b/Documentation/devicetree/bindings/iio/st-sensors.txt
index a7a0a15..d2aaca9 100644
--- a/Documentation/devicetree/bindings/iio/st-sensors.txt
+++ b/Documentation/devicetree/bindings/iio/st-sensors.txt
@@ -23,6 +23,7 @@ standard bindings from pinctrl/pinctrl-bindings.txt.
 Valid compatible strings:
 
 Accelerometers:
+- st,lis3lv02dl-accel
 - st,lsm303dlh-accel
 - st,lsm303dlhc-accel
 - st,lis3dh-accel
diff --git a/Documentation/devicetree/bindings/interrupt-controller/nvidia,tegra-ictlr.txt b/Documentation/devicetree/bindings/interrupt-controller/nvidia,tegra-ictlr.txt
new file mode 100644
index 0000000..1099fe0
--- /dev/null
+++ b/Documentation/devicetree/bindings/interrupt-controller/nvidia,tegra-ictlr.txt
@@ -0,0 +1,43 @@
+NVIDIA Legacy Interrupt Controller
+
+All Tegra SoCs contain a legacy interrupt controller that routes
+interrupts to the GIC, and also serves as a wakeup source. It is also
+referred to as "ictlr", hence the name of the binding.
+
+The HW block exposes a number of interrupt controllers, each
+implementing a set of 32 interrupts.
+
+Required properties:
+
+- compatible : should be: "nvidia,tegra<chip>-ictlr". The LIC on
+  subsequent SoCs remained backwards-compatible with Tegra30, so on
+  Tegra generations later than Tegra30 the compatible value should
+  include "nvidia,tegra30-ictlr".	
+- reg : Specifies base physical address and size of the registers.
+  Each controller must be described separately (Tegra20 has 4 of them,
+  whereas Tegra30 and later have 5"  
+- interrupt-controller : Identifies the node as an interrupt controller.
+- #interrupt-cells : Specifies the number of cells needed to encode an
+  interrupt source. The value must be 3.
+- interrupt-parent : a phandle to the GIC these interrupts are routed
+  to.
+
+Notes:
+
+- Because this HW ultimately routes interrupts to the GIC, the
+  interrupt specifier must be that of the GIC.
+- Only SPIs can use the ictlr as an interrupt parent. SGIs and PPIs
+  are explicitly forbidden.
+
+Example:
+
+	ictlr: interrupt-controller@60004000 {
+		compatible = "nvidia,tegra20-ictlr", "nvidia,tegra-ictlr";
+		reg = <0x60004000 64>,
+		      <0x60004100 64>,
+		      <0x60004200 64>,
+		      <0x60004300 64>;
+		interrupt-controller;
+		#interrupt-cells = <3>;
+		interrupt-parent = <&intc>;
+	};
diff --git a/Documentation/devicetree/bindings/interrupt-controller/renesas,irqc.txt b/Documentation/devicetree/bindings/interrupt-controller/renesas,irqc.txt
index 1a88e62..63633bd 100644
--- a/Documentation/devicetree/bindings/interrupt-controller/renesas,irqc.txt
+++ b/Documentation/devicetree/bindings/interrupt-controller/renesas,irqc.txt
@@ -4,7 +4,7 @@ Required properties:
 
 - compatible: has to be "renesas,irqc-<soctype>", "renesas,irqc" as fallback.
   Examples with soctypes are:
-    - "renesas,irqc-r8a73a4" (R-Mobile AP6)
+    - "renesas,irqc-r8a73a4" (R-Mobile APE6)
     - "renesas,irqc-r8a7790" (R-Car H2)
     - "renesas,irqc-r8a7791" (R-Car M2-W)
     - "renesas,irqc-r8a7792" (R-Car V2H)
@@ -12,6 +12,7 @@ Required properties:
     - "renesas,irqc-r8a7794" (R-Car E2)
 - #interrupt-cells: has to be <2>: an interrupt index and flags, as defined in
   interrupts.txt in this directory
+- clocks: Must contain a reference to the functional clock.
 
 Optional properties:
 
@@ -29,4 +30,5 @@ Example:
 			     <0 1 IRQ_TYPE_LEVEL_HIGH>,
 			     <0 2 IRQ_TYPE_LEVEL_HIGH>,
 			     <0 3 IRQ_TYPE_LEVEL_HIGH>;
+		clocks = <&mstp4_clks R8A7790_CLK_IRQC>;
 	};
diff --git a/Documentation/devicetree/bindings/interrupt-controller/st,sti-irq-syscfg.txt b/Documentation/devicetree/bindings/interrupt-controller/st,sti-irq-syscfg.txt
new file mode 100644
index 0000000..ced6014
--- /dev/null
+++ b/Documentation/devicetree/bindings/interrupt-controller/st,sti-irq-syscfg.txt
@@ -0,0 +1,35 @@
+STMicroelectronics STi System Configuration Controlled IRQs
+-----------------------------------------------------------
+
+On STi based systems; External, CTI (Core Sight), PMU (Performance Management),
+and PL310 L2 Cache IRQs are controlled using System Configuration registers.
+This driver is used to unmask them prior to use.
+
+Required properties:
+- compatible	: Should be set to one of:
+			"st,stih415-irq-syscfg"
+			"st,stih416-irq-syscfg"
+			"st,stih407-irq-syscfg"
+			"st,stid127-irq-syscfg"
+- st,syscfg	: Phandle to Cortex-A9 IRQ system config registers
+- st,irq-device	: Array of IRQs to enable - should be 2 in length
+- st,fiq-device	: Array of FIQs to enable - should be 2 in length
+
+Optional properties:
+- st,invert-ext	: External IRQs can be inverted at will.  This property inverts
+		  these IRQs using bitwise logic.  A number of defines have been
+		  provided for convenience:
+			ST_IRQ_SYSCFG_EXT_1_INV
+			ST_IRQ_SYSCFG_EXT_2_INV
+			ST_IRQ_SYSCFG_EXT_3_INV
+Example:
+
+irq-syscfg {
+	compatible    = "st,stih416-irq-syscfg";
+	st,syscfg     = <&syscfg_cpu>;
+	st,irq-device = <ST_IRQ_SYSCFG_PMU_0>,
+			<ST_IRQ_SYSCFG_PMU_1>;
+	st,fiq-device = <ST_IRQ_SYSCFG_DISABLED>,
+			<ST_IRQ_SYSCFG_DISABLED>;
+	st,invert-ext = <(ST_IRQ_SYSCFG_EXT_1_INV | ST_IRQ_SYSCFG_EXT_3_INV)>;
+};
diff --git a/Documentation/devicetree/bindings/interrupt-controller/ti,omap4-wugen-mpu b/Documentation/devicetree/bindings/interrupt-controller/ti,omap4-wugen-mpu
new file mode 100644
index 0000000..43effa0
--- /dev/null
+++ b/Documentation/devicetree/bindings/interrupt-controller/ti,omap4-wugen-mpu
@@ -0,0 +1,33 @@
+TI OMAP4 Wake-up Generator
+
+All TI OMAP4/5 (and their derivatives) an interrupt controller that
+routes interrupts to the GIC, and also serves as a wakeup source. It
+is also referred to as "WUGEN-MPU", hence the name of the binding.
+
+Reguired properties:
+
+- compatible : should contain at least "ti,omap4-wugen-mpu" or
+  "ti,omap5-wugen-mpu"
+- reg : Specifies base physical address and size of the registers.
+- interrupt-controller : Identifies the node as an interrupt controller.
+- #interrupt-cells : Specifies the number of cells needed to encode an
+  interrupt source. The value must be 3.
+- interrupt-parent : a phandle to the GIC these interrupts are routed
+  to.
+
+Notes:
+
+- Because this HW ultimately routes interrupts to the GIC, the
+  interrupt specifier must be that of the GIC.
+- Only SPIs can use the WUGEN as an interrupt parent. SGIs and PPIs
+  are explicitly forbiden.
+
+Example:
+
+       wakeupgen: interrupt-controller@48281000 {
+               compatible = "ti,omap5-wugen-mpu", "ti,omap4-wugen-mpu";
+               interrupt-controller;
+               #interrupt-cells = <3>;
+               reg = <0x48281000 0x1000>;
+               interrupt-parent = <&gic>;
+       };
diff --git a/Documentation/devicetree/bindings/mmc/brcm,sdhci-iproc.txt b/Documentation/devicetree/bindings/mmc/brcm,sdhci-iproc.txt
new file mode 100644
index 0000000..72cc9cc
--- /dev/null
+++ b/Documentation/devicetree/bindings/mmc/brcm,sdhci-iproc.txt
@@ -0,0 +1,23 @@
+Broadcom IPROC SDHCI controller
+
+This file documents differences between the core properties described
+by mmc.txt and the properties that represent the IPROC SDHCI controller.
+
+Required properties:
+- compatible : Should be "brcm,sdhci-iproc-cygnus".
+- clocks : The clock feeding the SDHCI controller.
+
+Optional properties:
+  - sdhci,auto-cmd12: specifies that controller should use auto CMD12.
+
+Example:
+
+sdhci0: sdhci@0x18041000 {
+	compatible = "brcm,sdhci-iproc-cygnus";
+	reg = <0x18041000 0x100>;
+	interrupts = <GIC_SPI 108 IRQ_TYPE_LEVEL_HIGH>;
+	clocks = <&lcpll0_clks BCM_CYGNUS_LCPLL0_SDIO_CLK>;
+	bus-width = <4>;
+	sdhci,auto-cmd12;
+	no-1-8-v;
+};
diff --git a/Documentation/devicetree/bindings/mmc/exynos-dw-mshc.txt b/Documentation/devicetree/bindings/mmc/exynos-dw-mshc.txt
index ee4fc05..aad9844 100644
--- a/Documentation/devicetree/bindings/mmc/exynos-dw-mshc.txt
+++ b/Documentation/devicetree/bindings/mmc/exynos-dw-mshc.txt
@@ -36,6 +36,8 @@ Required Properties:
   in transmit mode and CIU clock phase shift value in receive mode for double
   data rate mode operation. Refer notes below for the order of the cells and the
   valid values.
+* samsung,dw-mshc-hs400-timing: Specifies the value of CIU TX and RX clock phase
+  shift value for hs400 mode operation.
 
   Notes for the sdr-timing and ddr-timing values:
 
@@ -50,6 +52,9 @@ Required Properties:
       - if CIU clock divider value is 0 (that is divide by 1), both tx and rx
         phase shift clocks should be 0.
 
+* samsung,read-strobe-delay: RCLK (Data strobe) delay to control HS400 mode
+  (Latency value for delay line in Read path)
+
 Required properties for a slot (Deprecated - Recommend to use one slot per host):
 
 * gpios: specifies a list of gpios used for command, clock and data bus. The
@@ -82,5 +87,7 @@ Example:
 		samsung,dw-mshc-ciu-div = <3>;
 		samsung,dw-mshc-sdr-timing = <2 3>;
 		samsung,dw-mshc-ddr-timing = <1 2>;
+		samsung,dw-mshc-hs400-timing = <0 2>;
+		samsung,read-strobe-delay = <90>;
 		bus-width = <8>;
 	};
diff --git a/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt b/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt
index 9046ba06..415c557 100644
--- a/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt
+++ b/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt
@@ -17,6 +17,10 @@ Optional properties:
   to select a proper data sampling window in case the clock quality is not good
   due to signal path is too long on the board. Please refer to eSDHC/uSDHC
   chapter, DLL (Delay Line) section in RM for details.
+- voltage-ranges : Specify the voltage range in case there are software
+  transparent level shifters on the outputs of the controller. Two cells are
+  required, first cell specifies minimum slot voltage (mV), second cell
+  specifies maximum slot voltage (mV). Several ranges could be specified.
 
 Examples:
 
diff --git a/Documentation/devicetree/bindings/mmc/mmc-card.txt b/Documentation/devicetree/bindings/mmc/mmc-card.txt
new file mode 100644
index 0000000..a70fcd6
--- /dev/null
+++ b/Documentation/devicetree/bindings/mmc/mmc-card.txt
@@ -0,0 +1,31 @@
+mmc-card / eMMC bindings
+------------------------
+
+This documents describes the devicetree bindings for a mmc-host controller
+child node describing a mmc-card / an eMMC, see "Use of Function subnodes"
+in mmc.txt
+
+Required properties:
+-compatible : Must be "mmc-card"
+-reg        : Must be <0>
+
+Optional properties:
+-broken-hpi : Use this to indicate that the mmc-card has a broken hpi
+              implementation, and that hpi should not be used
+
+Example:
+
+&mmc2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&mmc2_pins_a>;
+	vmmc-supply = <&reg_vcc3v3>;
+	bus-width = <8>;
+	non-removable;
+	status = "okay";
+
+	mmccard: mmccard@0 {
+		reg = <0>;
+		compatible = "mmc-card";
+		broken-hpi;
+	};
+};
diff --git a/Documentation/devicetree/bindings/mmc/sdhci-st.txt b/Documentation/devicetree/bindings/mmc/sdhci-st.txt
index 7527db4..18d950d 100644
--- a/Documentation/devicetree/bindings/mmc/sdhci-st.txt
+++ b/Documentation/devicetree/bindings/mmc/sdhci-st.txt
@@ -5,20 +5,62 @@ Documentation/devicetree/bindings/mmc/mmc.txt and the properties
 used by the sdhci-st driver.
 
 Required properties:
-- compatible :  Must be "st,sdhci"
-- clock-names : Should be "mmc"
-                See: Documentation/devicetree/bindings/resource-names.txt
-- clocks :      Phandle of the clock used by the sdhci controler
-                See: Documentation/devicetree/bindings/clock/clock-bindings.txt
+- compatible:		Must be "st,sdhci" and it can be compatible to "st,sdhci-stih407"
+			to set the internal glue logic used for configuring the MMC
+			subsystem (mmcss) inside the FlashSS (available in STiH407 SoC
+			family).
+
+- clock-names:		Should be "mmc".
+			See: Documentation/devicetree/bindings/resource-names.txt
+- clocks:		Phandle to the clock.
+			See: Documentation/devicetree/bindings/clock/clock-bindings.txt
+
+- interrupts:		One mmc interrupt should be described here.
+- interrupt-names:	Should be "mmcirq".
+
+- pinctrl-names:	A pinctrl state names "default" must be defined.
+- pinctrl-0:		Phandle referencing pin configuration of the sd/emmc controller.
+			See: Documentation/devicetree/bindings/pinctrl/pinctrl-binding.txt
+
+- reg:			This must provide the host controller base address and it can also
+			contain the FlashSS Top register for TX/RX delay used by the driver
+			to configure DLL inside the flashSS, if so reg-names must also be
+			specified.
 
 Optional properties:
-- non-removable: non-removable slot
-                 See: Documentation/devicetree/bindings/mmc/mmc.txt
-- bus-width: Number of data lines
-                 See: Documentation/devicetree/bindings/mmc/mmc.txt
+- reg-names:		Should be "mmc" and "top-mmc-delay". "top-mmc-delay" is optional
+			for eMMC on stih407 family silicon to configure DLL inside FlashSS.
+
+- non-removable:	Non-removable slot. Also used for configuring mmcss in STiH407 SoC
+			family.
+			See:  Documentation/devicetree/bindings/mmc/mmc.txt.
+
+- bus-width:		Number of data lines.
+			See:  Documentation/devicetree/bindings/mmc/mmc.txt.
+
+- max-frequency: 	Can be 200MHz, 100Mz or 50MHz (default) and used for
+			configuring the CCONFIG3 in the mmcss.
+			See:  Documentation/devicetree/bindings/mmc/mmc.txt.
+
+- resets:		Phandle and reset specifier pair to softreset line of HC IP.
+			See: Documentation/devicetree/bindings/reset/reset.txt
+
+- vqmmc-supply:		Phandle to the regulator dt node, mentioned as the vcc/vdd
+			supply in eMMC/SD specs.
+
+- sd-uhs--sdr50:	To enable the SDR50 in the mmcss.
+			See:  Documentation/devicetree/bindings/mmc/mmc.txt.
+
+- sd-uhs-sdr104:	To enable the SDR104 in the mmcss.
+			See:  Documentation/devicetree/bindings/mmc/mmc.txt.
+
+- sd-uhs-ddr50:		To enable the DDR50 in the mmcss.
+			See:  Documentation/devicetree/bindings/mmc/mmc.txt.
 
 Example:
 
+/* Example stih416e eMMC configuration */
+
 mmc0: sdhci@fe81e000 {
 	compatible	= "st,sdhci";
 	status		= "disabled";
@@ -29,5 +71,43 @@ mmc0: sdhci@fe81e000 {
 	pinctrl-0	= <&pinctrl_mmc0>;
 	clock-names	= "mmc";
 	clocks		= <&clk_s_a1_ls 1>;
-	bus-width       = <8>
+	bus-width	= <8>
+
+/* Example SD stih407 family configuration */
+
+mmc1: sdhci@09080000 {
+	compatible	= "st,sdhci-stih407", "st,sdhci";
+	status		= "disabled";
+	reg		= <0x09080000 0x7ff>;
+	reg-names	= "mmc";
+	interrupts	= <GIC_SPI 90 IRQ_TYPE_NONE>;
+	interrupt-names	= "mmcirq";
+	pinctrl-names	= "default";
+	pinctrl-0	= <&pinctrl_sd1>;
+	clock-names	= "mmc";
+	clocks		= <&clk_s_c0_flexgen CLK_MMC_1>;
+	resets		= <&softreset STIH407_MMC1_SOFTRESET>;
+	bus-width	= <4>;
+};
+
+/* Example eMMC stih407 family configuration */
+
+mmc0: sdhci@09060000 {
+	compatible	= "st,sdhci-stih407", "st,sdhci";
+	status		= "disabled";
+	reg		= <0x09060000 0x7ff>, <0x9061008 0x20>;
+	reg-names	= "mmc", "top-mmc-delay";
+	interrupts	= <GIC_SPI 92 IRQ_TYPE_NONE>;
+	interrupt-names	= "mmcirq";
+	pinctrl-names	= "default";
+	pinctrl-0	= <&pinctrl_mmc0>;
+	clock-names	= "mmc";
+	clocks		= <&clk_s_c0_flexgen CLK_MMC_0>;
+	vqmmc-supply	= <&vmmc_reg>;
+	max-frequency	= <200000000>;
+	bus-width	= <8>;
+	non-removable;
+	sd-uhs-sdr50;
+	sd-uhs-sdr104;
+	sd-uhs-ddr50;
 };
diff --git a/Documentation/devicetree/bindings/net/amd-xgbe-phy.txt b/Documentation/devicetree/bindings/net/amd-xgbe-phy.txt
index 33df393..8db3238 100644
--- a/Documentation/devicetree/bindings/net/amd-xgbe-phy.txt
+++ b/Documentation/devicetree/bindings/net/amd-xgbe-phy.txt
@@ -27,6 +27,8 @@ property is used.
 - amd,serdes-cdr-rate: CDR rate speed selection
 - amd,serdes-pq-skew: PQ (data sampling) skew
 - amd,serdes-tx-amp: TX amplitude boost
+- amd,serdes-dfe-tap-config: DFE taps available to run
+- amd,serdes-dfe-tap-enable: DFE taps to enable
 
 Example:
 	xgbe_phy@e1240800 {
@@ -41,4 +43,6 @@ Example:
 		amd,serdes-cdr-rate = <2>, <2>, <7>;
 		amd,serdes-pq-skew = <10>, <10>, <30>;
 		amd,serdes-tx-amp = <15>, <15>, <10>;
+		amd,serdes-dfe-tap-config = <3>, <3>, <1>;
+		amd,serdes-dfe-tap-enable = <0>, <0>, <127>;
 	};
diff --git a/Documentation/devicetree/bindings/net/apm-xgene-enet.txt b/Documentation/devicetree/bindings/net/apm-xgene-enet.txt
index cfcc527..6151999 100644
--- a/Documentation/devicetree/bindings/net/apm-xgene-enet.txt
+++ b/Documentation/devicetree/bindings/net/apm-xgene-enet.txt
@@ -4,7 +4,10 @@ Ethernet nodes are defined to describe on-chip ethernet interfaces in
 APM X-Gene SoC.
 
 Required properties for all the ethernet interfaces:
-- compatible: Should be "apm,xgene-enet"
+- compatible: Should state binding information from the following list,
+  - "apm,xgene-enet":    RGMII based 1G interface
+  - "apm,xgene1-sgenet": SGMII based 1G interface
+  - "apm,xgene1-xgenet": XFI based 10G interface
 - reg: Address and length of the register set for the device. It contains the
   information of registers in the same order as described by reg-names
 - reg-names: Should contain the register set names
diff --git a/Documentation/devicetree/bindings/net/dsa/dsa.txt b/Documentation/devicetree/bindings/net/dsa/dsa.txt
index e124847..f0b4cd7 100644
--- a/Documentation/devicetree/bindings/net/dsa/dsa.txt
+++ b/Documentation/devicetree/bindings/net/dsa/dsa.txt
@@ -19,7 +19,9 @@ the parent DSA node. The maximum number of allowed child nodes is 4
 (DSA_MAX_SWITCHES).
 Each of these switch child nodes should have the following required properties:
 
-- reg			: Describes the switch address on the MII bus
+- reg			: Contains two fields. The first one describes the
+			  address on the MII bus. The second is the switch
+			  number that must be unique in cascaded configurations
 - #address-cells	: Must be 1
 - #size-cells		: Must be 0
 
diff --git a/Documentation/devicetree/bindings/pci/brcm,iproc-pcie.txt b/Documentation/devicetree/bindings/pci/brcm,iproc-pcie.txt
new file mode 100644
index 0000000..f7ce50e
--- /dev/null
+++ b/Documentation/devicetree/bindings/pci/brcm,iproc-pcie.txt
@@ -0,0 +1,63 @@
+* Broadcom iProc PCIe controller with the platform bus interface
+
+Required properties:
+- compatible: Must be "brcm,iproc-pcie"
+- reg: base address and length of the PCIe controller I/O register space
+- #interrupt-cells: set to <1>
+- interrupt-map-mask and interrupt-map, standard PCI properties to define the
+  mapping of the PCIe interface to interrupt numbers
+- linux,pci-domain: PCI domain ID. Should be unique for each host controller
+- bus-range: PCI bus numbers covered
+- #address-cells: set to <3>
+- #size-cells: set to <2>
+- device_type: set to "pci"
+- ranges: ranges for the PCI memory and I/O regions
+
+Optional properties:
+- phys: phandle of the PCIe PHY device
+- phy-names: must be "pcie-phy"
+
+Example:
+	pcie0: pcie@18012000 {
+		compatible = "brcm,iproc-pcie";
+		reg = <0x18012000 0x1000>;
+
+		#interrupt-cells = <1>;
+		interrupt-map-mask = <0 0 0 0>;
+		interrupt-map = <0 0 0 0 &gic GIC_SPI 100 IRQ_TYPE_NONE>;
+
+		linux,pci-domain = <0>;
+
+		bus-range = <0x00 0xff>;
+
+		#address-cells = <3>;
+		#size-cells = <2>;
+		device_type = "pci";
+		ranges = <0x81000000 0 0	  0x28000000 0 0x00010000
+			  0x82000000 0 0x20000000 0x20000000 0 0x04000000>;
+
+		phys = <&phy 0 5>;
+		phy-names = "pcie-phy";
+	};
+
+	pcie1: pcie@18013000 {
+		compatible = "brcm,iproc-pcie";
+		reg = <0x18013000 0x1000>;
+
+		#interrupt-cells = <1>;
+		interrupt-map-mask = <0 0 0 0>;
+		interrupt-map = <0 0 0 0 &gic GIC_SPI 106 IRQ_TYPE_NONE>;
+
+		linux,pci-domain = <1>;
+
+		bus-range = <0x00 0xff>;
+
+		#address-cells = <3>;
+		#size-cells = <2>;
+		device_type = "pci";
+		ranges = <0x81000000 0 0	  0x48000000 0 0x00010000
+			  0x82000000 0 0x40000000 0x40000000 0 0x04000000>;
+
+		phys = <&phy 1 6>;
+		phy-names = "pcie-phy";
+	};
diff --git a/Documentation/devicetree/bindings/phy/dm816x-phy.txt b/Documentation/devicetree/bindings/phy/dm816x-phy.txt
new file mode 100644
index 0000000..2fe3d11
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/dm816x-phy.txt
@@ -0,0 +1,24 @@
+Device tree binding documentation for am816x USB PHY
+=========================
+
+Required properties:
+- compatible : should be "ti,dm816x-usb-phy"
+- reg : offset and length of the PHY register set.
+- reg-names : name for the phy registers
+- clocks : phandle to the clock
+- clock-names : name of the clock
+- syscon: phandle for the syscon node to access misc registers
+- #phy-cells : from the generic PHY bindings, must be 1
+- syscon: phandle for the syscon node to access misc registers
+
+Example:
+
+usb_phy0: usb-phy@20 {
+	compatible = "ti,dm8168-usb-phy";
+	reg = <0x20 0x8>;
+	reg-names = "phy";
+	clocks = <&main_fapll 6>;
+	clock-names = "refclk";
+	#phy-cells = <0>;
+	syscon = <&scm_conf>;
+};
diff --git a/Documentation/devicetree/bindings/phy/phy-miphy365x.txt b/Documentation/devicetree/bindings/phy/phy-miphy365x.txt
index 9802d5d..8772900 100644
--- a/Documentation/devicetree/bindings/phy/phy-miphy365x.txt
+++ b/Documentation/devicetree/bindings/phy/phy-miphy365x.txt
@@ -20,8 +20,8 @@ Required nodes	:  A sub-node is required for each channel the controller
 Required properties (port (child) node):
 - #phy-cells 	: Should be 1 (See second example)
 		  Cell after port phandle is device type from:
-			- MIPHY_TYPE_SATA
-			- MIPHY_TYPE_PCI
+			- PHY_TYPE_SATA
+			- PHY_TYPE_PCI
 - reg        	: Address and length of register sets for each device in
 		  "reg-names"
 - reg-names     : The names of the register addresses corresponding to the
@@ -68,10 +68,10 @@ property, containing a phandle to the phy port node and a device type.
 
 Example:
 
-#include <dt-bindings/phy/phy-miphy365x.h>
+#include <dt-bindings/phy/phy.h>
 
 	sata0: sata@fe380000 {
 		...
-		phys	  = <&phy_port0 MIPHY_TYPE_SATA>;
+		phys	  = <&phy_port0 PHY_TYPE_SATA>;
 		...
 	};
diff --git a/Documentation/devicetree/bindings/phy/samsung-phy.txt b/Documentation/devicetree/bindings/phy/samsung-phy.txt
index 91e38cf..60c6f2a 100644
--- a/Documentation/devicetree/bindings/phy/samsung-phy.txt
+++ b/Documentation/devicetree/bindings/phy/samsung-phy.txt
@@ -128,6 +128,7 @@ Required properties:
 - compatible : Should be set to one of the following supported values:
 	- "samsung,exynos5250-usbdrd-phy" - for exynos5250 SoC,
 	- "samsung,exynos5420-usbdrd-phy" - for exynos5420 SoC.
+	- "samsung,exynos5433-usbdrd-phy" - for exynos5433 SoC.
 	- "samsung,exynos7-usbdrd-phy" - for exynos7 SoC.
 - reg : Register offset and length of USB DRD PHY register set;
 - clocks: Clock IDs array as required by the controller
@@ -139,7 +140,7 @@ Required properties:
 	       PHY operations, associated by phy name. It is used to
 	       determine bit values for clock settings register.
 	       For Exynos5420 this is given as 'sclk_usbphy30' in CMU.
-	- optional clocks: Exynos7 SoC has now following additional
+	- optional clocks: Exynos5433 & Exynos7 SoC has now following additional
 			   gate clocks available:
 			   - phy_pipe: for PIPE3 phy
 			   - phy_utmi: for UTMI+ phy
diff --git a/Documentation/devicetree/bindings/phy/sun9i-usb-phy.txt b/Documentation/devicetree/bindings/phy/sun9i-usb-phy.txt
new file mode 100644
index 0000000..1cca85c
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/sun9i-usb-phy.txt
@@ -0,0 +1,38 @@
+Allwinner sun9i USB PHY
+-----------------------
+
+Required properties:
+- compatible : should be one of
+  * allwinner,sun9i-a80-usb-phy
+- reg : a list of offset + length pairs
+- #phy-cells : from the generic phy bindings, must be 0
+- phy_type : "hsic" for HSIC usage;
+	     other values or absence of this property indicates normal USB
+- clocks : phandle + clock specifier for the phy clocks
+- clock-names : depending on the "phy_type" property,
+  * "phy" for normal USB
+  * "hsic_480M", "hsic_12M" for HSIC
+- resets : a list of phandle + reset specifier pairs
+- reset-names : depending on the "phy_type" property,
+  * "phy" for normal USB
+  * "hsic" for HSIC
+
+Optional Properties:
+- phy-supply : from the generic phy bindings, a phandle to a regulator that
+	       provides power to VBUS.
+
+It is recommended to list all clocks and resets available.
+The driver will only use those matching the phy_type.
+
+Example:
+	usbphy1: phy@00a01800 {
+		compatible = "allwinner,sun9i-a80-usb-phy";
+		reg = <0x00a01800 0x4>;
+		clocks = <&usb_phy_clk 2>, <&usb_phy_clk 10>,
+		       <&usb_phy_clk 3>;
+		clock-names = "hsic_480M", "hsic_12M", "phy";
+		resets = <&usb_phy_clk 18>, <&usb_phy_clk 19>;
+		reset-names = "hsic", "phy";
+		status = "disabled";
+		#phy-cells = <0>;
+	};
diff --git a/Documentation/devicetree/bindings/power/da9150-charger.txt b/Documentation/devicetree/bindings/power/da9150-charger.txt
new file mode 100644
index 0000000..f390666
--- /dev/null
+++ b/Documentation/devicetree/bindings/power/da9150-charger.txt
@@ -0,0 +1,26 @@
+Dialog Semiconductor DA9150 Charger Power Supply bindings
+
+Required properties:
+- compatible: "dlg,da9150-charger" for DA9150 Charger Power Supply
+
+Optional properties:
+- io-channels: List of phandle and IIO specifier pairs
+- io-channel-names: List of channel names used by charger
+      ["CHAN_IBUS", "CHAN_VBUS", "CHAN_TJUNC", "CHAN_VBAT"]
+  (See Documentation/devicetree/bindings/iio/iio-bindings.txt for further info)
+
+
+Example:
+
+	da9150-charger {
+		compatible = "dlg,da9150-charger";
+
+		io-channels = <&gpadc 0>,
+			      <&gpadc 2>,
+			      <&gpadc 8>,
+			      <&gpadc 5>;
+		io-channel-names = "CHAN_IBUS",
+				   "CHAN_VBUS",
+				   "CHAN_TJUNC",
+				   "CHAN_VBAT";
+	};
diff --git a/Documentation/devicetree/bindings/power/power_domain.txt b/Documentation/devicetree/bindings/power/power_domain.txt
index 98c1667..0f8ed37 100644
--- a/Documentation/devicetree/bindings/power/power_domain.txt
+++ b/Documentation/devicetree/bindings/power/power_domain.txt
@@ -19,6 +19,16 @@ Required properties:
    providing multiple PM domains (e.g. power controllers), but can be any value
    as specified by device tree binding documentation of particular provider.
 
+Optional properties:
+ - power-domains : A phandle and PM domain specifier as defined by bindings of
+                   the power controller specified by phandle.
+   Some power domains might be powered from another power domain (or have
+   other hardware specific dependencies). For representing such dependency
+   a standard PM domain consumer binding is used. When provided, all domains
+   created by the given provider should be subdomains of the domain
+   specified by this binding. More details about power domain specifier are
+   available in the next section.
+
 Example:
 
 	power: power-controller@12340000 {
@@ -30,6 +40,25 @@ Example:
 The node above defines a power controller that is a PM domain provider and
 expects one cell as its phandle argument.
 
+Example 2:
+
+	parent: power-controller@12340000 {
+		compatible = "foo,power-controller";
+		reg = <0x12340000 0x1000>;
+		#power-domain-cells = <1>;
+	};
+
+	child: power-controller@12340000 {
+		compatible = "foo,power-controller";
+		reg = <0x12341000 0x1000>;
+		power-domains = <&parent 0>;
+		#power-domain-cells = <1>;
+	};
+
+The nodes above define two power controllers: 'parent' and 'child'.
+Domains created by the 'child' power controller are subdomains of '0' power
+domain provided by the 'parent' power controller.
+
 ==PM domain consumers==
 
 Required properties:
diff --git a/Documentation/devicetree/bindings/power/reset/syscon-poweroff.txt b/Documentation/devicetree/bindings/power/reset/syscon-poweroff.txt
new file mode 100644
index 0000000..1e2546f
--- /dev/null
+++ b/Documentation/devicetree/bindings/power/reset/syscon-poweroff.txt
@@ -0,0 +1,23 @@
+Generic SYSCON mapped register poweroff driver
+
+This is a generic poweroff driver using syscon to map the poweroff register.
+The poweroff is generally performed with a write to the poweroff register
+defined by the register map pointed by syscon reference plus the offset
+with the mask defined in the poweroff node.
+
+Required properties:
+- compatible: should contain "syscon-poweroff"
+- regmap: this is phandle to the register map node
+- offset: offset in the register map for the poweroff register (in bytes)
+- mask: the poweroff value written to the poweroff register (32 bit access)
+
+Default will be little endian mode, 32 bit access only.
+
+Examples:
+
+	poweroff {
+	   compatible = "syscon-poweroff";
+	   regmap = <&regmapnode>;
+	   offset = <0x0>;
+	   mask = <0x7a>;
+	};
diff --git a/Documentation/devicetree/bindings/regulator/act8865-regulator.txt b/Documentation/devicetree/bindings/regulator/act8865-regulator.txt
index dad6358..e91485d 100644
--- a/Documentation/devicetree/bindings/regulator/act8865-regulator.txt
+++ b/Documentation/devicetree/bindings/regulator/act8865-regulator.txt
@@ -2,13 +2,35 @@ ACT88xx regulators
 -------------------
 
 Required properties:
-- compatible: "active-semi,act8846" or "active-semi,act8865"
+- compatible: "active-semi,act8846" or "active-semi,act8865" or "active-semi,act8600"
 - reg: I2C slave address
 
 Optional properties:
 - system-power-controller: Telling whether or not this pmic is controlling
   the system power. See Documentation/devicetree/bindings/power/power-controller.txt .
 
+Optional input supply properties:
+- for act8600:
+  - vp1-supply: The input supply for DCDC_REG1
+  - vp2-supply: The input supply for DCDC_REG2
+  - vp3-supply: The input supply for DCDC_REG3
+  - inl-supply: The input supply for LDO_REG5, LDO_REG6, LDO_REG7 and LDO_REG8
+  SUDCDC_REG4, LDO_REG9 and LDO_REG10 do not have separate supplies.
+- for act8846:
+  - vp1-supply: The input supply for REG1
+  - vp2-supply: The input supply for REG2
+  - vp3-supply: The input supply for REG3
+  - vp4-supply: The input supply for REG4
+  - inl1-supply: The input supply for REG5, REG6 and REG7
+  - inl2-supply: The input supply for REG8 and LDO_REG9
+  - inl3-supply: The input supply for REG10, REG11 and REG12
+- for act8865:
+  - vp1-supply: The input supply for DCDC_REG1
+  - vp2-supply: The input supply for DCDC_REG2
+  - vp3-supply: The input supply for DCDC_REG3
+  - inl45-supply: The input supply for LDO_REG1 and LDO_REG2
+  - inl67-supply: The input supply for LDO_REG3 and LDO_REG4
+
 Any standard regulator properties can be used to configure the single regulator.
 
 The valid names for regulators are:
@@ -16,6 +38,9 @@ The valid names for regulators are:
 	REG1, REG2, REG3, REG4, REG5, REG6, REG7, REG8, REG9, REG10, REG11, REG12
 	- for act8865:
 	DCDC_REG1, DCDC_REG2, DCDC_REG3, LDO_REG1, LDO_REG2, LDO_REG3, LDO_REG4.
+	- for act8600:
+	DCDC_REG1, DCDC_REG2, DCDC_REG3, SUDCDC_REG4, LDO_REG5, LDO_REG6, LDO_REG7,
+	LDO_REG8, LDO_REG9, LDO_REG10,
 
 Example:
 --------
diff --git a/Documentation/devicetree/bindings/serial/of-serial.txt b/Documentation/devicetree/bindings/serial/8250.txt
index 91d5ab0..91d5ab0 100644
--- a/Documentation/devicetree/bindings/serial/of-serial.txt
+++ b/Documentation/devicetree/bindings/serial/8250.txt
diff --git a/Documentation/devicetree/bindings/serial/axis,etraxfs-uart.txt b/Documentation/devicetree/bindings/serial/axis,etraxfs-uart.txt
new file mode 100644
index 0000000..ebcbb62
--- /dev/null
+++ b/Documentation/devicetree/bindings/serial/axis,etraxfs-uart.txt
@@ -0,0 +1,19 @@
+ETRAX FS UART
+
+Required properties:
+- compatible : "axis,etraxfs-uart"
+- reg: offset and length of the register set for the device.
+- interrupts: device interrupt
+
+Optional properties:
+- {dtr,dsr,ri,cd}-gpios: specify a GPIO for DTR/DSR/RI/CD
+  line respectively.
+
+Example:
+
+serial@b00260000 {
+	compatible = "axis,etraxfs-uart";
+	reg = <0xb0026000 0x1000>;
+	interrupts = <68>;
+	status = "disabled";
+};
diff --git a/Documentation/devicetree/bindings/serial/snps-dw-apb-uart.txt b/Documentation/devicetree/bindings/serial/snps-dw-apb-uart.txt
index 7f76214..289c40e 100644
--- a/Documentation/devicetree/bindings/serial/snps-dw-apb-uart.txt
+++ b/Documentation/devicetree/bindings/serial/snps-dw-apb-uart.txt
@@ -21,6 +21,18 @@ Optional properties:
 - reg-io-width : the size (in bytes) of the IO accesses that should be
   performed on the device.  If this property is not present then single byte
   accesses are used.
+- dcd-override : Override the DCD modem status signal. This signal will always
+  be reported as active instead of being obtained from the modem status
+  register. Define this if your serial port does not use this pin.
+- dsr-override : Override the DTS modem status signal. This signal will always
+  be reported as active instead of being obtained from the modem status
+  register. Define this if your serial port does not use this pin.
+- cts-override : Override the CTS modem status signal. This signal will always
+  be reported as active instead of being obtained from the modem status
+  register. Define this if your serial port does not use this pin.
+- ri-override : Override the RI modem status signal. This signal will always be
+  reported as inactive instead of being obtained from the modem status register.
+  Define this if your serial port does not use this pin.
 
 Example:
 
@@ -31,6 +43,10 @@ Example:
 		interrupts = <10>;
 		reg-shift = <2>;
 		reg-io-width = <4>;
+		dcd-override;
+		dsr-override;
+		cts-override;
+		ri-override;
 	};
 
 Example with one clock:
diff --git a/Documentation/devicetree/bindings/spi/fsl-imx-cspi.txt b/Documentation/devicetree/bindings/spi/fsl-imx-cspi.txt
index aad527b..523341a 100644
--- a/Documentation/devicetree/bindings/spi/fsl-imx-cspi.txt
+++ b/Documentation/devicetree/bindings/spi/fsl-imx-cspi.txt
@@ -2,11 +2,21 @@
   (CSPI/eCSPI) for i.MX
 
 Required properties:
-- compatible : Should be "fsl,<soc>-cspi" or "fsl,<soc>-ecspi"
+- compatible :
+  - "fsl,imx1-cspi" for SPI compatible with the one integrated on i.MX1
+  - "fsl,imx21-cspi" for SPI compatible with the one integrated on i.MX21
+  - "fsl,imx27-cspi" for SPI compatible with the one integrated on i.MX27
+  - "fsl,imx31-cspi" for SPI compatible with the one integrated on i.MX31
+  - "fsl,imx35-cspi" for SPI compatible with the one integrated on i.MX35
+  - "fsl,imx51-ecspi" for SPI compatible with the one integrated on i.MX51
 - reg : Offset and length of the register set for the device
 - interrupts : Should contain CSPI/eCSPI interrupt
 - fsl,spi-num-chipselects : Contains the number of the chipselect
 - cs-gpios : Specifies the gpio pins to be used for chipselects.
+- clocks : Clock specifiers for both ipg and per clocks.
+- clock-names : Clock names should include both "ipg" and "per"
+See the clock consumer binding,
+	Documentation/devicetree/bindings/clock/clock-bindings.txt
 - dmas: DMA specifiers for tx and rx dma. See the DMA client binding,
 		Documentation/devicetree/bindings/dma/dma.txt
 - dma-names: DMA request names should include "tx" and "rx" if present.
diff --git a/Documentation/devicetree/bindings/spi/qcom,spi-qup.txt b/Documentation/devicetree/bindings/spi/qcom,spi-qup.txt
index e2c88df..5c09077 100644
--- a/Documentation/devicetree/bindings/spi/qcom,spi-qup.txt
+++ b/Documentation/devicetree/bindings/spi/qcom,spi-qup.txt
@@ -33,6 +33,11 @@ Optional properties:
 		nodes.  If unspecified, a single SPI device without a chip
 		select can be used.
 
+- dmas:         Two DMA channel specifiers following the convention outlined
+                in bindings/dma/dma.txt
+- dma-names:    Names for the dma channels, if present. There must be at
+                least one channel named "tx" for transmit and named "rx" for
+                receive.
 
 SPI slave nodes must be children of the SPI master node and can contain
 properties described in Documentation/devicetree/bindings/spi/spi-bus.txt
@@ -51,6 +56,9 @@ Example:
 		clocks = <&gcc GCC_BLSP2_QUP2_SPI_APPS_CLK>, <&gcc GCC_BLSP2_AHB_CLK>;
 		clock-names = "core", "iface";
 
+		dmas = <&blsp1_bam 13>, <&blsp1_bam 12>;
+		dma-names = "rx", "tx";
+
 		pinctrl-names = "default";
 		pinctrl-0 = <&spi8_default>;
 
diff --git a/Documentation/devicetree/bindings/spi/spi-fsl-dspi.txt b/Documentation/devicetree/bindings/spi/spi-fsl-dspi.txt
index cbbe16e..70af78a 100644
--- a/Documentation/devicetree/bindings/spi/spi-fsl-dspi.txt
+++ b/Documentation/devicetree/bindings/spi/spi-fsl-dspi.txt
@@ -16,6 +16,12 @@ Optional property:
   in big endian mode, otherwise in native mode(same with CPU), for more
   detail please see: Documentation/devicetree/bindings/regmap/regmap.txt.
 
+Optional SPI slave node properties:
+- fsl,spi-cs-sck-delay: a delay in nanoseconds between activating chip
+  select and the start of clock signal, at the start of a transfer.
+- fsl,spi-sck-cs-delay: a delay in nanoseconds between stopping the clock
+  signal and deactivating chip select, at the end of a transfer.
+
 Example:
 
 dspi0@4002c000 {
@@ -43,6 +49,8 @@ dspi0@4002c000 {
 		reg = <0>;
 		linux,modalias = "m25p80";
 		modal = "at26df081a";
+		fsl,spi-cs-sck-delay = <100>;
+		fsl,spi-sck-cs-delay = <50>;
 	};
 };
 
diff --git a/Documentation/devicetree/bindings/spi/spi-img-spfi.txt b/Documentation/devicetree/bindings/spi/spi-img-spfi.txt
index c7dd50f..e02fbf1 100644
--- a/Documentation/devicetree/bindings/spi/spi-img-spfi.txt
+++ b/Documentation/devicetree/bindings/spi/spi-img-spfi.txt
@@ -14,6 +14,7 @@ Required properties:
 - dma-names: Must include the following entries:
   - rx
   - tx
+- cs-gpios: Must specify the GPIOs used for chipselect lines.
 - #address-cells: Must be 1.
 - #size-cells: Must be 0.
 
diff --git a/Documentation/devicetree/bindings/spi/spi-rockchip.txt b/Documentation/devicetree/bindings/spi/spi-rockchip.txt
index 467dec4..0c491bd 100644
--- a/Documentation/devicetree/bindings/spi/spi-rockchip.txt
+++ b/Documentation/devicetree/bindings/spi/spi-rockchip.txt
@@ -24,6 +24,9 @@ Optional Properties:
 - dmas: DMA specifiers for tx and rx dma. See the DMA client binding,
 		Documentation/devicetree/bindings/dma/dma.txt
 - dma-names: DMA request names should include "tx" and "rx" if present.
+- rx-sample-delay-ns: nanoseconds to delay after the SCLK edge before sampling
+		Rx data (may need to be fine tuned for high capacitance lines).
+		No delay (0) by default.
 
 
 Example:
@@ -33,6 +36,7 @@ Example:
 		reg = <0xff110000 0x1000>;
 		dmas = <&pdma1 11>, <&pdma1 12>;
 		dma-names = "tx", "rx";
+		rx-sample-delay-ns = <10>;
 		#address-cells = <1>;
 		#size-cells = <0>;
 		interrupts = <GIC_SPI 44 IRQ_TYPE_LEVEL_HIGH>;
diff --git a/Documentation/devicetree/bindings/submitting-patches.txt b/Documentation/devicetree/bindings/submitting-patches.txt
index 56742bc..7d44eae 100644
--- a/Documentation/devicetree/bindings/submitting-patches.txt
+++ b/Documentation/devicetree/bindings/submitting-patches.txt
@@ -12,6 +12,9 @@ I. For patch submitters
 
        devicetree@vger.kernel.org
 
+     and Cc: the DT maintainers. Use scripts/get_maintainer.pl to identify
+     all of the DT maintainers.
+
   3) The Documentation/ portion of the patch should come in the series before
      the code implementing the binding.
 
diff --git a/Documentation/devicetree/bindings/thermal/rcar-thermal.txt b/Documentation/devicetree/bindings/thermal/rcar-thermal.txt
index 43404b1..332e625 100644
--- a/Documentation/devicetree/bindings/thermal/rcar-thermal.txt
+++ b/Documentation/devicetree/bindings/thermal/rcar-thermal.txt
@@ -4,7 +4,7 @@ Required properties:
 - compatible		: "renesas,thermal-<soctype>", "renesas,rcar-thermal"
 			  as fallback.
 			  Examples with soctypes are:
-			    - "renesas,thermal-r8a73a4" (R-Mobile AP6)
+			    - "renesas,thermal-r8a73a4" (R-Mobile APE6)
 			    - "renesas,thermal-r8a7779" (R-Car H1)
 			    - "renesas,thermal-r8a7790" (R-Car H2)
 			    - "renesas,thermal-r8a7791" (R-Car M2-W)
diff --git a/Documentation/devicetree/bindings/usb/dwc3.txt b/Documentation/devicetree/bindings/usb/dwc3.txt
index cd7f045..5cc3643 100644
--- a/Documentation/devicetree/bindings/usb/dwc3.txt
+++ b/Documentation/devicetree/bindings/usb/dwc3.txt
@@ -14,6 +14,7 @@ Optional properties:
  - phys: from the *Generic PHY* bindings
  - phy-names: from the *Generic PHY* bindings
  - tx-fifo-resize: determines if the FIFO *has* to be reallocated.
+ - snps,usb3_lpm_capable: determines if platform is USB3 LPM capable
  - snps,disable_scramble_quirk: true when SW should disable data scrambling.
 	Only really useful for FPGA builds.
  - snps,has-lpm-erratum: true when DWC3 was configured with LPM Erratum enabled
diff --git a/Documentation/devicetree/bindings/usb/renesas_usbhs.txt b/Documentation/devicetree/bindings/usb/renesas_usbhs.txt
index 61b045b..dc2a18f 100644
--- a/Documentation/devicetree/bindings/usb/renesas_usbhs.txt
+++ b/Documentation/devicetree/bindings/usb/renesas_usbhs.txt
@@ -15,7 +15,10 @@ Optional properties:
   - phys: phandle + phy specifier pair
   - phy-names: must be "usb"
   - dmas: Must contain a list of references to DMA specifiers.
-  - dma-names : Must contain a list of DMA names, "tx" or "rx".
+  - dma-names : Must contain a list of DMA names:
+   - tx0 ... tx<n>
+   - rx0 ... rx<n>
+    - This <n> means DnFIFO in USBHS module.
 
 Example:
 	usbhs: usb@e6590000 {
diff --git a/Documentation/devicetree/bindings/usb/usbmisc-imx.txt b/Documentation/devicetree/bindings/usb/usbmisc-imx.txt
index c101a4b..3539d4e 100644
--- a/Documentation/devicetree/bindings/usb/usbmisc-imx.txt
+++ b/Documentation/devicetree/bindings/usb/usbmisc-imx.txt
@@ -5,6 +5,7 @@ Required properties:
 - compatible: Should be one of below:
 	"fsl,imx6q-usbmisc" for imx6q
 	"fsl,vf610-usbmisc" for Vybrid vf610
+	"fsl,imx6sx-usbmisc" for imx6sx
 - reg: Should contain registers location and length
 
 Examples:
diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt
index 389ca13..fae26d0 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.txt
+++ b/Documentation/devicetree/bindings/vendor-prefixes.txt
@@ -20,6 +20,7 @@ amlogic	Amlogic, Inc.
 ams	AMS AG
 amstaos	AMS-Taos Inc.
 apm	Applied Micro Circuits Corporation (APM)
+arasan	Arasan Chip Systems
 arm	ARM Ltd.
 armadeus	ARMadeus Systems SARL
 asahi-kasei	Asahi Kasei Corp.
@@ -27,6 +28,7 @@ atmel	Atmel Corporation
 auo	AU Optronics Corporation
 avago	Avago Technologies
 avic	Shanghai AVIC Optoelectronics Co., Ltd.
+axis	Axis Communications AB
 bosch	Bosch Sensortec GmbH
 brcm	Broadcom Corporation
 buffalo	Buffalo, Inc.
diff --git a/Documentation/devicetree/bindings/watchdog/atmel-wdt.txt b/Documentation/devicetree/bindings/watchdog/atmel-wdt.txt
index f90e294..a4d8697 100644
--- a/Documentation/devicetree/bindings/watchdog/atmel-wdt.txt
+++ b/Documentation/devicetree/bindings/watchdog/atmel-wdt.txt
@@ -26,6 +26,11 @@ Optional properties:
 - atmel,disable : Should be present if you want to disable the watchdog.
 - atmel,idle-halt : Should be present if you want to stop the watchdog when
 	entering idle state.
+	CAUTION: This property should be used with care, it actually makes the
+	watchdog not counting when the CPU is in idle state, therefore the
+	watchdog reset time depends on mean CPU usage and will not reset at all
+	if the CPU stop working while it is in idle state, which is probably
+	not what you want.
 - atmel,dbg-halt : Should be present if you want to stop the watchdog when
 	entering debug state.
 
diff --git a/Documentation/filesystems/dlmfs.txt b/Documentation/filesystems/dlmfs.txt
index 1b528b2..fcf4d50 100644
--- a/Documentation/filesystems/dlmfs.txt
+++ b/Documentation/filesystems/dlmfs.txt
@@ -5,8 +5,8 @@ system.
 
 dlmfs is built with OCFS2 as it requires most of its infrastructure.
 
-Project web page:    http://oss.oracle.com/projects/ocfs2
-Tools web page:      http://oss.oracle.com/projects/ocfs2-tools
+Project web page:    http://ocfs2.wiki.kernel.org
+Tools web page:      https://github.com/markfasheh/ocfs2-tools
 OCFS2 mailing lists: http://oss.oracle.com/projects/ocfs2/mailman/
 
 All code copyright 2005 Oracle except when otherwise noted.
diff --git a/Documentation/filesystems/ocfs2.txt b/Documentation/filesystems/ocfs2.txt
index 28f8c08..4c49e54 100644
--- a/Documentation/filesystems/ocfs2.txt
+++ b/Documentation/filesystems/ocfs2.txt
@@ -8,8 +8,8 @@ also make it attractive for non-clustered use.
 You'll want to install the ocfs2-tools package in order to at least
 get "mount.ocfs2" and "ocfs2_hb_ctl".
 
-Project web page:    http://oss.oracle.com/projects/ocfs2
-Tools web page:      http://oss.oracle.com/projects/ocfs2-tools
+Project web page:    http://ocfs2.wiki.kernel.org
+Tools git tree:      https://github.com/markfasheh/ocfs2-tools
 OCFS2 mailing lists: http://oss.oracle.com/projects/ocfs2/mailman/
 
 All code copyright 2005 Oracle except when otherwise noted.
diff --git a/Documentation/hwmon/it87 b/Documentation/hwmon/it87
index fe80e9a..e872948 100644
--- a/Documentation/hwmon/it87
+++ b/Documentation/hwmon/it87
@@ -6,6 +6,10 @@ Supported chips:
     Prefix: 'it8603'
     Addresses scanned: from Super I/O config space (8 I/O ports)
     Datasheet: Not publicly available
+  * IT8620E
+    Prefix: 'it8620'
+    Addresses scanned: from Super I/O config space (8 I/O ports)
+    Datasheet: Not publicly available
   * IT8705F
     Prefix: 'it87'
     Addresses scanned: from Super I/O config space (8 I/O ports)
@@ -42,6 +46,10 @@ Supported chips:
     Prefix: 'it8772'
     Addresses scanned: from Super I/O config space (8 I/O ports)
     Datasheet: Not publicly available
+  * IT8781F
+    Prefix: 'it8781'
+    Addresses scanned: from Super I/O config space (8 I/O ports)
+    Datasheet: Not publicly available
   * IT8782F
     Prefix: 'it8782'
     Addresses scanned: from Super I/O config space (8 I/O ports)
@@ -50,6 +58,14 @@ Supported chips:
     Prefix: 'it8783'
     Addresses scanned: from Super I/O config space (8 I/O ports)
     Datasheet: Not publicly available
+  * IT8786E
+    Prefix: 'it8786'
+    Addresses scanned: from Super I/O config space (8 I/O ports)
+    Datasheet: Not publicly available
+  * IT8790E
+    Prefix: 'it8790'
+    Addresses scanned: from Super I/O config space (8 I/O ports)
+    Datasheet: Not publicly available
   * SiS950   [clone of IT8705F]
     Prefix: 'it87'
     Addresses scanned: from Super I/O config space (8 I/O ports)
@@ -94,9 +110,10 @@ motherboard models.
 Description
 -----------
 
-This driver implements support for the IT8603E, IT8623E, IT8705F, IT8712F,
-IT8716F, IT8718F, IT8720F, IT8721F, IT8726F, IT8728F, IT8758E, IT8771E,
-IT8772E, IT8782F, IT8783E/F, and SiS950 chips.
+This driver implements support for the IT8603E, IT8620E, IT8623E, IT8705F,
+IT8712F, IT8716F, IT8718F, IT8720F, IT8721F, IT8726F, IT8728F, IT8758E,
+IT8771E, IT8772E, IT8781F, IT8782F, IT8783E/F, IT8786E, IT8790E, and SiS950
+chips.
 
 These chips are 'Super I/O chips', supporting floppy disks, infrared ports,
 joysticks and other miscellaneous stuff. For hardware monitoring, they
@@ -120,11 +137,11 @@ The IT8716F, IT8718F, IT8720F, IT8721F/IT8758E and later IT8712F revisions
 have support for 2 additional fans. The additional fans are supported by the
 driver.
 
-The IT8716F, IT8718F, IT8720F, IT8721F/IT8758E, IT8782F, IT8783E/F, and late
-IT8712F and IT8705F also have optional 16-bit tachometer counters for fans 1 to
-3. This is better (no more fan clock divider mess) but not compatible with the
-older chips and revisions. The 16-bit tachometer mode is enabled by the driver
-when one of the above chips is detected.
+The IT8716F, IT8718F, IT8720F, IT8721F/IT8758E, IT8781F, IT8782F, IT8783E/F,
+and late IT8712F and IT8705F also have optional 16-bit tachometer counters
+for fans 1 to 3. This is better (no more fan clock divider mess) but not
+compatible with the older chips and revisions. The 16-bit tachometer mode
+is enabled by the driver when one of the above chips is detected.
 
 The IT8726F is just bit enhanced IT8716F with additional hardware
 for AMD power sequencing. Therefore the chip will appear as IT8716F
@@ -134,8 +151,13 @@ The IT8728F, IT8771E, and IT8772E are considered compatible with the IT8721F,
 until a datasheet becomes available (hopefully.)
 
 The IT8603E/IT8623E is a custom design, hardware monitoring part is similar to
-IT8728F. It only supports 16-bit fan mode, the full speed mode of the
-fan is not supported (value 0 of pwmX_enable).
+IT8728F. It only supports 3 fans, 16-bit fan mode, and the full speed mode
+of the fan is not supported (value 0 of pwmX_enable).
+
+The IT8620E is another custom design, hardware monitoring part is similar to
+IT8728F. It only supports 16-bit fan mode.
+
+The IT8790E supports up to 3 fans. 16-bit fan mode is always enabled.
 
 Temperatures are measured in degrees Celsius. An alarm is triggered once
 when the Overtemperature Shutdown limit is crossed.
@@ -156,10 +178,10 @@ inputs can measure voltages between 0 and 4.08 volts, with a resolution of
 0.016 volt (except IT8603E, IT8721F/IT8758E and IT8728F: 0.012 volt.) The
 battery voltage in8 does not have limit registers.
 
-On the IT8603E, IT8721F/IT8758E, IT8782F, and IT8783E/F, some voltage inputs
-are internal and scaled inside the chip:
+On the IT8603E, IT8721F/IT8758E, IT8781F, IT8782F, and IT8783E/F, some
+voltage inputs are internal and scaled inside the chip:
 * in3 (optional)
-* in7 (optional for IT8782F and IT8783E/F)
+* in7 (optional for IT8781F, IT8782F, and IT8783E/F)
 * in8 (always)
 * in9 (relevant for IT8603E only)
 The driver handles this transparently so user-space doesn't have to care.
diff --git a/Documentation/hwmon/jc42 b/Documentation/hwmon/jc42
index f3893f7..f7f1830a 100644
--- a/Documentation/hwmon/jc42
+++ b/Documentation/hwmon/jc42
@@ -11,12 +11,10 @@ Supported chips:
 	http://www.atmel.com/Images/doc8711.pdf
 	http://www.atmel.com/Images/Atmel-8852-SEEPROM-AT30TSE002A-Datasheet.pdf
 	http://www.atmel.com/Images/Atmel-8868-DTS-AT30TSE004A-Datasheet.pdf
-  * IDT TSE2002B3, TSE2002GB2, TS3000B3, TS3000GB2
+  * IDT TSE2002B3, TSE2002GB2, TSE2004GB2, TS3000B3, TS3000GB0, TS3000GB2,
+	TS3001GB2
     Datasheets:
-	http://www.idt.com/sites/default/files/documents/IDT_TSE2002B3C_DST_20100512_120303152056.pdf
-	http://www.idt.com/sites/default/files/documents/IDT_TSE2002GB2A1_DST_20111107_120303145914.pdf
-	http://www.idt.com/sites/default/files/documents/IDT_TS3000B3A_DST_20101129_120303152013.pdf
-	http://www.idt.com/sites/default/files/documents/IDT_TS3000GB2A1_DST_20111104_120303151012.pdf
+	Available from IDT web site
   * Maxim MAX6604
     Datasheets:
 	http://datasheets.maxim-ic.com/en/ds/MAX6604.pdf
diff --git a/Documentation/hwmon/nct7904 b/Documentation/hwmon/nct7904
new file mode 100644
index 0000000..014f112
--- /dev/null
+++ b/Documentation/hwmon/nct7904
@@ -0,0 +1,60 @@
+Kernel driver nct7904
+====================
+
+Supported chip:
+  * Nuvoton NCT7904D
+    Prefix: nct7904
+    Addresses: I2C 0x2d, 0x2e
+    Datasheet: Publicly available at Nuvoton website
+	http://www.nuvoton.com/
+
+Author: Vadim V. Vlasov <vvlasov@dev.rtsoft.ru>
+
+
+Description
+-----------
+
+The NCT7904D is a hardware monitor supporting up to 20 voltage sensors,
+internal temperature sensor, Intel PECI and AMD SB-TSI CPU temperature
+interface, up to 12 fan tachometer inputs, up to 4 fan control channels
+with SmartFan.
+
+
+Sysfs entries
+-------------
+
+Currently, the driver supports only the following features:
+
+in[1-20]_input		Input voltage measurements (mV)
+
+fan[1-12]_input		Fan tachometer measurements (rpm)
+
+temp1_input		Local temperature (1/1000 degree,
+			0.125 degree resolution)
+
+temp[2-9]_input		CPU temperatures (1/1000 degree,
+			0.125 degree resolution)
+
+fan[1-4]_mode		R/W, 0/1 for manual or SmartFan mode
+			Setting SmartFan mode is supported only if it has been
+			previously configured by BIOS (or configuration EEPROM)
+
+fan[1-4]_pwm		R/O in SmartFan mode, R/W in manual control mode
+
+The driver checks sensor control registers and does not export the sensors
+that are not enabled. Anyway, a sensor that is enabled may actually be not
+connected and thus provide zero readings.
+
+
+Limitations
+-----------
+
+The following features are not supported in current version:
+
+ - SmartFan control
+ - Watchdog
+ - GPIO
+ - external temperature sensors
+ - SMI
+ - min/max values
+ - many other...
diff --git a/Documentation/input/alps.txt b/Documentation/input/alps.txt
index a63e5e0..92ae734 100644
--- a/Documentation/input/alps.txt
+++ b/Documentation/input/alps.txt
@@ -114,6 +114,9 @@ ALPS Absolute Mode - Protocol Version 2
  byte 4:  0   y6   y5   y4   y3   y2   y1   y0
  byte 5:  0   z6   z5   z4   z3   z2   z1   z0
 
+Protocol Version 2 DualPoint devices send standard PS/2 mouse packets for
+the DualPoint Stick.
+
 Dualpoint device -- interleaved packet format
 ---------------------------------------------
 
@@ -127,6 +130,11 @@ Dualpoint device -- interleaved packet format
  byte 7:    0   y6   y5   y4   y3   y2   y1   y0
  byte 8:    0   z6   z5   z4   z3   z2   z1   z0
 
+Devices which use the interleaving format normally send standard PS/2 mouse
+packets for the DualPoint Stick + ALPS Absolute Mode packets for the
+touchpad, switching to the interleaved packet format when both the stick and
+the touchpad are used at the same time.
+
 ALPS Absolute Mode - Protocol Version 3
 ---------------------------------------
 
diff --git a/Documentation/input/event-codes.txt b/Documentation/input/event-codes.txt
index c587a96..9670561 100644
--- a/Documentation/input/event-codes.txt
+++ b/Documentation/input/event-codes.txt
@@ -294,6 +294,12 @@ accordingly. This property does not affect kernel behavior.
 The kernel does not provide button emulation for such devices but treats
 them as any other INPUT_PROP_BUTTONPAD device.
 
+INPUT_PROP_ACCELEROMETER
+-------------------------
+Directional axes on this device (absolute and/or relative x, y, z) represent
+accelerometer data. All other axes retain their meaning. A device must not mix
+regular directional axes and accelerometer axes on the same event node.
+
 Guidelines:
 ==========
 The guidelines below ensure proper single-touch and multi-finger functionality.
diff --git a/Documentation/input/multi-touch-protocol.txt b/Documentation/input/multi-touch-protocol.txt
index 7b4f59c..b85d000 100644
--- a/Documentation/input/multi-touch-protocol.txt
+++ b/Documentation/input/multi-touch-protocol.txt
@@ -312,9 +312,12 @@ ABS_MT_TOOL_TYPE
 
 The type of approaching tool. A lot of kernel drivers cannot distinguish
 between different tool types, such as a finger or a pen. In such cases, the
-event should be omitted. The protocol currently supports MT_TOOL_FINGER and
-MT_TOOL_PEN [2]. For type B devices, this event is handled by input core;
-drivers should instead use input_mt_report_slot_state().
+event should be omitted. The protocol currently supports MT_TOOL_FINGER,
+MT_TOOL_PEN, and MT_TOOL_PALM [2]. For type B devices, this event is handled
+by input core; drivers should instead use input_mt_report_slot_state().
+A contact's ABS_MT_TOOL_TYPE may change over time while still touching the
+device, because the firmware may not be able to determine which tool is being
+used when it first appears.
 
 ABS_MT_BLOB_ID
 
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index bfcb1a6..01aa47d 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -1036,7 +1036,7 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
 			Format: {"off" | "on" | "skip[mbr]"}
 
 	efi=		[EFI]
-			Format: { "old_map", "nochunk", "noruntime" }
+			Format: { "old_map", "nochunk", "noruntime", "debug" }
 			old_map [X86-64]: switch to the old ioremap-based EFI
 			runtime services mapping. 32-bit still uses this one by
 			default.
@@ -1044,6 +1044,7 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
 			boot stub, as chunking can cause problems with some
 			firmware implementations.
 			noruntime : disable EFI runtime services support
+			debug: enable misc debug output
 
 	efi_no_storage_paranoia [EFI; X86]
 			Using this parameter you can use more than 50% of
diff --git a/Documentation/power/regulator/consumer.txt b/Documentation/power/regulator/consumer.txt
index 8afb236c..e51564c 100644
--- a/Documentation/power/regulator/consumer.txt
+++ b/Documentation/power/regulator/consumer.txt
@@ -137,7 +137,7 @@ Indirect operating mode control.
 Consumer drivers can request a change in their supply regulator operating mode
 by calling :-
 
-int regulator_set_optimum_mode(struct regulator *regulator, int load_uA);
+int regulator_set_load(struct regulator *regulator, int load_uA);
 
 This will cause the core to recalculate the total load on the regulator (based
 on all its consumers) and change operating mode (if necessary and permitted)
diff --git a/Documentation/power/suspend-and-interrupts.txt b/Documentation/power/suspend-and-interrupts.txt
index 2f9c5a5..8afb29a 100644
--- a/Documentation/power/suspend-and-interrupts.txt
+++ b/Documentation/power/suspend-and-interrupts.txt
@@ -40,8 +40,10 @@ but also to IPIs and to some other special-purpose interrupts.
 
 The IRQF_NO_SUSPEND flag is used to indicate that to the IRQ subsystem when
 requesting a special-purpose interrupt.  It causes suspend_device_irqs() to
-leave the corresponding IRQ enabled so as to allow the interrupt to work all
-the time as expected.
+leave the corresponding IRQ enabled so as to allow the interrupt to work as
+expected during the suspend-resume cycle, but does not guarantee that the
+interrupt will wake the system from a suspended state -- for such cases it is
+necessary to use enable_irq_wake().
 
 Note that the IRQF_NO_SUSPEND flag affects the entire IRQ and not just one
 user of it.  Thus, if the IRQ is shared, all of the interrupt handlers installed
@@ -110,8 +112,9 @@ any special interrupt handling logic for it to work.
 IRQF_NO_SUSPEND and enable_irq_wake()
 -------------------------------------
 
-There are no valid reasons to use both enable_irq_wake() and the IRQF_NO_SUSPEND
-flag on the same IRQ.
+There are very few valid reasons to use both enable_irq_wake() and the
+IRQF_NO_SUSPEND flag on the same IRQ, and it is never valid to use both for the
+same device.
 
 First of all, if the IRQ is not shared, the rules for handling IRQF_NO_SUSPEND
 interrupts (interrupt handlers are invoked after suspend_device_irqs()) are
@@ -120,4 +123,13 @@ handlers are not invoked after suspend_device_irqs()).
 
 Second, both enable_irq_wake() and IRQF_NO_SUSPEND apply to entire IRQs and not
 to individual interrupt handlers, so sharing an IRQ between a system wakeup
-interrupt source and an IRQF_NO_SUSPEND interrupt source does not make sense.
+interrupt source and an IRQF_NO_SUSPEND interrupt source does not generally
+make sense.
+
+In rare cases an IRQ can be shared between a wakeup device driver and an
+IRQF_NO_SUSPEND user. In order for this to be safe, the wakeup device driver
+must be able to discern spurious IRQs from genuine wakeup events (signalling
+the latter to the core with pm_system_wakeup()), must use enable_irq_wake() to
+ensure that the IRQ will function as a wakeup source, and must request the IRQ
+with IRQF_COND_SUSPEND to tell the core that it meets these requirements. If
+these requirements are not met, it is not valid to use IRQF_COND_SUSPEND.
diff --git a/Documentation/rtc.txt b/Documentation/rtc.txt
index 596b60c..8446f1e 100644
--- a/Documentation/rtc.txt
+++ b/Documentation/rtc.txt
@@ -204,266 +204,4 @@ Some common examples:
 
     *	RTC_PIE_ON, RTC_PIE_OFF: These are also emulated by the generic code.
 
-If all else fails, check out the rtc-test.c driver!
-
-
--------------------- 8< ---------------- 8< -----------------------------
-
-/*
- *      Real Time Clock Driver Test/Example Program
- *
- *      Compile with:
- *		     gcc -s -Wall -Wstrict-prototypes rtctest.c -o rtctest
- *
- *      Copyright (C) 1996, Paul Gortmaker.
- *
- *      Released under the GNU General Public License, version 2,
- *      included herein by reference.
- *
- */
-
-#include <stdio.h>
-#include <linux/rtc.h>
-#include <sys/ioctl.h>
-#include <sys/time.h>
-#include <sys/types.h>
-#include <fcntl.h>
-#include <unistd.h>
-#include <stdlib.h>
-#include <errno.h>
-
-
-/*
- * This expects the new RTC class driver framework, working with
- * clocks that will often not be clones of what the PC-AT had.
- * Use the command line to specify another RTC if you need one.
- */
-static const char default_rtc[] = "/dev/rtc0";
-
-
-int main(int argc, char **argv)
-{
-	int i, fd, retval, irqcount = 0;
-	unsigned long tmp, data;
-	struct rtc_time rtc_tm;
-	const char *rtc = default_rtc;
-
-	switch (argc) {
-	case 2:
-		rtc = argv[1];
-		/* FALLTHROUGH */
-	case 1:
-		break;
-	default:
-		fprintf(stderr, "usage:  rtctest [rtcdev]\n");
-		return 1;
-	}
-
-	fd = open(rtc, O_RDONLY);
-
-	if (fd ==  -1) {
-		perror(rtc);
-		exit(errno);
-	}
-
-	fprintf(stderr, "\n\t\t\tRTC Driver Test Example.\n\n");
-
-	/* Turn on update interrupts (one per second) */
-	retval = ioctl(fd, RTC_UIE_ON, 0);
-	if (retval == -1) {
-		if (errno == ENOTTY) {
-			fprintf(stderr,
-				"\n...Update IRQs not supported.\n");
-			goto test_READ;
-		}
-		perror("RTC_UIE_ON ioctl");
-		exit(errno);
-	}
-
-	fprintf(stderr, "Counting 5 update (1/sec) interrupts from reading %s:",
-			rtc);
-	fflush(stderr);
-	for (i=1; i<6; i++) {
-		/* This read will block */
-		retval = read(fd, &data, sizeof(unsigned long));
-		if (retval == -1) {
-			perror("read");
-			exit(errno);
-		}
-		fprintf(stderr, " %d",i);
-		fflush(stderr);
-		irqcount++;
-	}
-
-	fprintf(stderr, "\nAgain, from using select(2) on /dev/rtc:");
-	fflush(stderr);
-	for (i=1; i<6; i++) {
-		struct timeval tv = {5, 0};     /* 5 second timeout on select */
-		fd_set readfds;
-
-		FD_ZERO(&readfds);
-		FD_SET(fd, &readfds);
-		/* The select will wait until an RTC interrupt happens. */
-		retval = select(fd+1, &readfds, NULL, NULL, &tv);
-		if (retval == -1) {
-		        perror("select");
-		        exit(errno);
-		}
-		/* This read won't block unlike the select-less case above. */
-		retval = read(fd, &data, sizeof(unsigned long));
-		if (retval == -1) {
-		        perror("read");
-		        exit(errno);
-		}
-		fprintf(stderr, " %d",i);
-		fflush(stderr);
-		irqcount++;
-	}
-
-	/* Turn off update interrupts */
-	retval = ioctl(fd, RTC_UIE_OFF, 0);
-	if (retval == -1) {
-		perror("RTC_UIE_OFF ioctl");
-		exit(errno);
-	}
-
-test_READ:
-	/* Read the RTC time/date */
-	retval = ioctl(fd, RTC_RD_TIME, &rtc_tm);
-	if (retval == -1) {
-		perror("RTC_RD_TIME ioctl");
-		exit(errno);
-	}
-
-	fprintf(stderr, "\n\nCurrent RTC date/time is %d-%d-%d, %02d:%02d:%02d.\n",
-		rtc_tm.tm_mday, rtc_tm.tm_mon + 1, rtc_tm.tm_year + 1900,
-		rtc_tm.tm_hour, rtc_tm.tm_min, rtc_tm.tm_sec);
-
-	/* Set the alarm to 5 sec in the future, and check for rollover */
-	rtc_tm.tm_sec += 5;
-	if (rtc_tm.tm_sec >= 60) {
-		rtc_tm.tm_sec %= 60;
-		rtc_tm.tm_min++;
-	}
-	if (rtc_tm.tm_min == 60) {
-		rtc_tm.tm_min = 0;
-		rtc_tm.tm_hour++;
-	}
-	if (rtc_tm.tm_hour == 24)
-		rtc_tm.tm_hour = 0;
-
-	retval = ioctl(fd, RTC_ALM_SET, &rtc_tm);
-	if (retval == -1) {
-		if (errno == ENOTTY) {
-			fprintf(stderr,
-				"\n...Alarm IRQs not supported.\n");
-			goto test_PIE;
-		}
-		perror("RTC_ALM_SET ioctl");
-		exit(errno);
-	}
-
-	/* Read the current alarm settings */
-	retval = ioctl(fd, RTC_ALM_READ, &rtc_tm);
-	if (retval == -1) {
-		perror("RTC_ALM_READ ioctl");
-		exit(errno);
-	}
-
-	fprintf(stderr, "Alarm time now set to %02d:%02d:%02d.\n",
-		rtc_tm.tm_hour, rtc_tm.tm_min, rtc_tm.tm_sec);
-
-	/* Enable alarm interrupts */
-	retval = ioctl(fd, RTC_AIE_ON, 0);
-	if (retval == -1) {
-		perror("RTC_AIE_ON ioctl");
-		exit(errno);
-	}
-
-	fprintf(stderr, "Waiting 5 seconds for alarm...");
-	fflush(stderr);
-	/* This blocks until the alarm ring causes an interrupt */
-	retval = read(fd, &data, sizeof(unsigned long));
-	if (retval == -1) {
-		perror("read");
-		exit(errno);
-	}
-	irqcount++;
-	fprintf(stderr, " okay. Alarm rang.\n");
-
-	/* Disable alarm interrupts */
-	retval = ioctl(fd, RTC_AIE_OFF, 0);
-	if (retval == -1) {
-		perror("RTC_AIE_OFF ioctl");
-		exit(errno);
-	}
-
-test_PIE:
-	/* Read periodic IRQ rate */
-	retval = ioctl(fd, RTC_IRQP_READ, &tmp);
-	if (retval == -1) {
-		/* not all RTCs support periodic IRQs */
-		if (errno == ENOTTY) {
-			fprintf(stderr, "\nNo periodic IRQ support\n");
-			goto done;
-		}
-		perror("RTC_IRQP_READ ioctl");
-		exit(errno);
-	}
-	fprintf(stderr, "\nPeriodic IRQ rate is %ldHz.\n", tmp);
-
-	fprintf(stderr, "Counting 20 interrupts at:");
-	fflush(stderr);
-
-	/* The frequencies 128Hz, 256Hz, ... 8192Hz are only allowed for root. */
-	for (tmp=2; tmp<=64; tmp*=2) {
-
-		retval = ioctl(fd, RTC_IRQP_SET, tmp);
-		if (retval == -1) {
-			/* not all RTCs can change their periodic IRQ rate */
-			if (errno == ENOTTY) {
-				fprintf(stderr,
-					"\n...Periodic IRQ rate is fixed\n");
-				goto done;
-			}
-			perror("RTC_IRQP_SET ioctl");
-			exit(errno);
-		}
-
-		fprintf(stderr, "\n%ldHz:\t", tmp);
-		fflush(stderr);
-
-		/* Enable periodic interrupts */
-		retval = ioctl(fd, RTC_PIE_ON, 0);
-		if (retval == -1) {
-			perror("RTC_PIE_ON ioctl");
-			exit(errno);
-		}
-
-		for (i=1; i<21; i++) {
-			/* This blocks */
-			retval = read(fd, &data, sizeof(unsigned long));
-			if (retval == -1) {
-				perror("read");
-				exit(errno);
-			}
-			fprintf(stderr, " %d",i);
-			fflush(stderr);
-			irqcount++;
-		}
-
-		/* Disable periodic interrupts */
-		retval = ioctl(fd, RTC_PIE_OFF, 0);
-		if (retval == -1) {
-			perror("RTC_PIE_OFF ioctl");
-			exit(errno);
-		}
-	}
-
-done:
-	fprintf(stderr, "\n\n\t\t\t *** Test complete ***\n");
-
-	close(fd);
-
-	return 0;
-}
+If all else fails, check out the tools/testing/selftests/timers/rtctest.c test!
diff --git a/Documentation/scsi/ncr53c8xx.txt b/Documentation/scsi/ncr53c8xx.txt
index 1d508dc..8586eff 100644
--- a/Documentation/scsi/ncr53c8xx.txt
+++ b/Documentation/scsi/ncr53c8xx.txt
@@ -786,7 +786,6 @@ port address 0x1400.
         irqm:1     same as initial settings (assumed BIOS settings)
         irqm:2     always totem pole
         irqm:0x10  driver will not use IRQF_SHARED flag when requesting irq
-        irqm:0x20  driver will not use IRQF_DISABLED flag when requesting irq
 
     (Bits 0x10 and 0x20 can be combined with hardware irq mode option)
 
@@ -1231,30 +1230,6 @@ they only refer to system buffers that are well aligned. So, a work around
 may only be needed under Linux when a scatter/gather list is not used and 
 when the SCSI DATA IN phase is reentered after a phase mismatch.
 
-14.5 IRQ sharing problems
-
-When an IRQ is shared by devices that are handled by different drivers, it 
-may happen that one driver complains about the request of the IRQ having 
-failed. Inder Linux-2.0, this may be due to one driver having requested the 
-IRQ using the IRQF_DISABLED flag but some other having requested the same IRQ
-without this flag. Under both Linux-2.0 and linux-2.2, this may be caused by 
-one driver not having requested the IRQ with the IRQF_SHARED flag.
-
-By default, the ncr53c8xx and sym53c8xx drivers request IRQs with both the 
-IRQF_DISABLED and the IRQF_SHARED flag under Linux-2.0 and with only the IRQF_SHARED
-flag under Linux-2.2.
-
-Under Linux-2.0, you can disable use of IRQF_DISABLED flag from the boot
-command line by using the following option:
-
-     ncr53c8xx=irqm:0x20   (for the generic ncr53c8xx driver)
-     sym53c8xx=irqm:0x20   (for the sym53c8xx driver)
-
-If this does not fix the problem, then you may want to check how all other 
-drivers are requesting the IRQ and report the problem. Note that if at least 
-a single driver does not request the IRQ with the IRQF_SHARED flag (share IRQ),
-then the request of the IRQ obviously will not succeed for all the drivers.
-
 15. SCSI problem troubleshooting
 
 15.1 Problem tracking
diff --git a/Documentation/scsi/tmscsim.txt b/Documentation/scsi/tmscsim.txt
index 0810132..0e0322b 100644
--- a/Documentation/scsi/tmscsim.txt
+++ b/Documentation/scsi/tmscsim.txt
@@ -107,10 +107,6 @@ produced errors and started to corrupt my disks. So don't do that! A 37.50
 MHz PCI bus works for me, though, but I don't recommend using higher clocks
 than the 33.33 MHz being in the PCI spec.
 
-If you want to share the IRQ with another device and the driver refuses to
-do so, you might succeed with changing the DC390_IRQ type in tmscsim.c to 
-IRQF_SHARED | IRQF_DISABLED.
-
 
 3.Features
 ----------
diff --git a/Documentation/spi/spi-summary b/Documentation/spi/spi-summary
index d29734b..d1824b3 100644
--- a/Documentation/spi/spi-summary
+++ b/Documentation/spi/spi-summary
@@ -342,12 +342,11 @@ SPI protocol drivers somewhat resemble platform device drivers:
 		.driver = {
 			.name		= "CHIP",
 			.owner		= THIS_MODULE,
+			.pm		= &CHIP_pm_ops,
 		},
 
 		.probe		= CHIP_probe,
 		.remove		= CHIP_remove,
-		.suspend	= CHIP_suspend,
-		.resume		= CHIP_resume,
 	};
 
 The driver core will automatically attempt to bind this driver to any SPI
diff --git a/Documentation/spi/spidev_test.c b/Documentation/spi/spidev_test.c
index 3a2f9d5..94f574b 100644
--- a/Documentation/spi/spidev_test.c
+++ b/Documentation/spi/spidev_test.c
@@ -15,6 +15,7 @@
 #include <unistd.h>
 #include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
 #include <getopt.h>
 #include <fcntl.h>
 #include <sys/ioctl.h>
@@ -34,24 +35,79 @@ static uint32_t mode;
 static uint8_t bits = 8;
 static uint32_t speed = 500000;
 static uint16_t delay;
+static int verbose;
 
-static void transfer(int fd)
+uint8_t default_tx[] = {
+	0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+	0x40, 0x00, 0x00, 0x00, 0x00, 0x95,
+	0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+	0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+	0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+	0xF0, 0x0D,
+};
+
+uint8_t default_rx[ARRAY_SIZE(default_tx)] = {0, };
+char *input_tx;
+
+static void hex_dump(const void *src, size_t length, size_t line_size, char *prefix)
+{
+	int i = 0;
+	const unsigned char *address = src;
+	const unsigned char *line = address;
+	unsigned char c;
+
+	printf("%s | ", prefix);
+	while (length-- > 0) {
+		printf("%02X ", *address++);
+		if (!(++i % line_size) || (length == 0 && i % line_size)) {
+			if (length == 0) {
+				while (i++ % line_size)
+					printf("__ ");
+			}
+			printf(" | ");  /* right close */
+			while (line < address) {
+				c = *line++;
+				printf("%c", (c < 33 || c == 255) ? 0x2E : c);
+			}
+			printf("\n");
+			if (length > 0)
+				printf("%s | ", prefix);
+		}
+	}
+}
+
+/*
+ *  Unescape - process hexadecimal escape character
+ *      converts shell input "\x23" -> 0x23
+ */
+int unespcape(char *_dst, char *_src, size_t len)
+{
+	int ret = 0;
+	char *src = _src;
+	char *dst = _dst;
+	unsigned int ch;
+
+	while (*src) {
+		if (*src == '\\' && *(src+1) == 'x') {
+			sscanf(src + 2, "%2x", &ch);
+			src += 4;
+			*dst++ = (unsigned char)ch;
+		} else {
+			*dst++ = *src++;
+		}
+		ret++;
+	}
+	return ret;
+}
+
+static void transfer(int fd, uint8_t const *tx, uint8_t const *rx, size_t len)
 {
 	int ret;
-	uint8_t tx[] = {
-		0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
-		0x40, 0x00, 0x00, 0x00, 0x00, 0x95,
-		0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
-		0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
-		0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
-		0xDE, 0xAD, 0xBE, 0xEF, 0xBA, 0xAD,
-		0xF0, 0x0D,
-	};
-	uint8_t rx[ARRAY_SIZE(tx)] = {0, };
+
 	struct spi_ioc_transfer tr = {
 		.tx_buf = (unsigned long)tx,
 		.rx_buf = (unsigned long)rx,
-		.len = ARRAY_SIZE(tx),
+		.len = len,
 		.delay_usecs = delay,
 		.speed_hz = speed,
 		.bits_per_word = bits,
@@ -76,12 +132,9 @@ static void transfer(int fd)
 	if (ret < 1)
 		pabort("can't send spi message");
 
-	for (ret = 0; ret < ARRAY_SIZE(tx); ret++) {
-		if (!(ret % 6))
-			puts("");
-		printf("%.2X ", rx[ret]);
-	}
-	puts("");
+	if (verbose)
+		hex_dump(tx, len, 32, "TX");
+	hex_dump(rx, len, 32, "RX");
 }
 
 static void print_usage(const char *prog)
@@ -97,6 +150,8 @@ static void print_usage(const char *prog)
 	     "  -L --lsb      least significant bit first\n"
 	     "  -C --cs-high  chip select active high\n"
 	     "  -3 --3wire    SI/SO signals shared\n"
+	     "  -v --verbose  Verbose (show tx buffer)\n"
+	     "  -p            Send data (e.g. \"1234\\xde\\xad\")\n"
 	     "  -N --no-cs    no chip select\n"
 	     "  -R --ready    slave pulls low to pause\n"
 	     "  -2 --dual     dual transfer\n"
@@ -121,12 +176,13 @@ static void parse_opts(int argc, char *argv[])
 			{ "no-cs",   0, 0, 'N' },
 			{ "ready",   0, 0, 'R' },
 			{ "dual",    0, 0, '2' },
+			{ "verbose", 0, 0, 'v' },
 			{ "quad",    0, 0, '4' },
 			{ NULL, 0, 0, 0 },
 		};
 		int c;
 
-		c = getopt_long(argc, argv, "D:s:d:b:lHOLC3NR24", lopts, NULL);
+		c = getopt_long(argc, argv, "D:s:d:b:lHOLC3NR24p:v", lopts, NULL);
 
 		if (c == -1)
 			break;
@@ -165,9 +221,15 @@ static void parse_opts(int argc, char *argv[])
 		case 'N':
 			mode |= SPI_NO_CS;
 			break;
+		case 'v':
+			verbose = 1;
+			break;
 		case 'R':
 			mode |= SPI_READY;
 			break;
+		case 'p':
+			input_tx = optarg;
+			break;
 		case '2':
 			mode |= SPI_TX_DUAL;
 			break;
@@ -191,6 +253,9 @@ int main(int argc, char *argv[])
 {
 	int ret = 0;
 	int fd;
+	uint8_t *tx;
+	uint8_t *rx;
+	int size;
 
 	parse_opts(argc, argv);
 
@@ -235,7 +300,17 @@ int main(int argc, char *argv[])
 	printf("bits per word: %d\n", bits);
 	printf("max speed: %d Hz (%d KHz)\n", speed, speed/1000);
 
-	transfer(fd);
+	if (input_tx) {
+		size = strlen(input_tx+1);
+		tx = malloc(size);
+		rx = malloc(size);
+		size = unespcape((char *)tx, input_tx, size);
+		transfer(fd, tx, rx, size);
+		free(rx);
+		free(tx);
+	} else {
+		transfer(fd, default_tx, default_rx, sizeof(default_tx));
+	}
 
 	close(fd);
 
diff --git a/Documentation/stable_kernel_rules.txt b/Documentation/stable_kernel_rules.txt
index 02f8331..58d0ac4 100644
--- a/Documentation/stable_kernel_rules.txt
+++ b/Documentation/stable_kernel_rules.txt
@@ -81,6 +81,16 @@ format in the sign-off area:
      git cherry-pick fd21073
      git cherry-pick <this commit>
 
+Also, some patches may have kernel version prerequisites.  This can be
+specified in the following format in the sign-off area:
+
+     Cc:  <stable@vger.kernel.org> # 3.3.x-
+
+   The tag has the meaning of:
+     git cherry-pick <this commit>
+
+   For each "-stable" tree starting with the specified version.
+
 Following the submission:
 
  - The sender will receive an ACK when the patch has been accepted into the
diff --git a/Documentation/usb/chipidea.txt b/Documentation/usb/chipidea.txt
index 995c8bc..3f848c1 100644
--- a/Documentation/usb/chipidea.txt
+++ b/Documentation/usb/chipidea.txt
@@ -69,3 +69,24 @@ cat /sys/kernel/debug/ci_hdrc.0/registers
 ----------------------
 "On-The-Go and Embedded Host Supplement to the USB Revision 2.0 Specification
 July 27, 2012 Revision 2.0 version 1.1a"
+
+2. How to enable USB as system wakeup source
+-----------------------------------
+Below is the example for how to enable USB as system wakeup source
+at imx6 platform.
+
+2.1 Enable core's wakeup
+echo enabled > /sys/bus/platform/devices/ci_hdrc.0/power/wakeup
+2.2 Enable glue layer's wakeup
+echo enabled > /sys/bus/platform/devices/2184000.usb/power/wakeup
+2.3 Enable PHY's wakeup (optional)
+echo enabled > /sys/bus/platform/devices/20c9000.usbphy/power/wakeup
+2.4 Enable roothub's wakeup
+echo enabled > /sys/bus/usb/devices/usb1/power/wakeup
+2.5 Enable related device's wakeup
+echo enabled > /sys/bus/usb/devices/1-1/power/wakeup
+
+If the system has only one usb port, and you want usb wakeup at this port, you
+can use below script to enable usb wakeup.
+for i in $(find /sys -name wakeup | grep usb);do echo enabled > $i;done;
+
diff --git a/Documentation/usb/gadget-testing.txt b/Documentation/usb/gadget-testing.txt
index 076ac7b..f45b2bf 100644
--- a/Documentation/usb/gadget-testing.txt
+++ b/Documentation/usb/gadget-testing.txt
@@ -19,6 +19,7 @@ provided by gadgets.
 16. UAC1 function
 17. UAC2 function
 18. UVC function
+19. PRINTER function
 
 
 1. ACM function
@@ -726,3 +727,49 @@ with these patches:
 http://www.spinics.net/lists/linux-usb/msg99220.html
 
 host: luvcview -f yuv
+
+19. PRINTER function
+====================
+
+The function is provided by usb_f_printer.ko module.
+
+Function-specific configfs interface
+------------------------------------
+
+The function name to use when creating the function directory is "printer".
+The printer function provides these attributes in its function directory:
+
+	pnp_string	- Data to be passed to the host in pnp string
+	q_len		- Number of requests per endpoint
+
+Testing the PRINTER function
+----------------------------
+
+The most basic testing:
+
+device: run the gadget
+# ls -l /devices/virtual/usb_printer_gadget/
+
+should show g_printer<number>.
+
+If udev is active, then /dev/g_printer<number> should appear automatically.
+
+host:
+
+If udev is active, then e.g. /dev/usb/lp0 should appear.
+
+host->device transmission:
+
+device:
+# cat /dev/g_printer<number>
+host:
+# cat > /dev/usb/lp0
+
+device->host transmission:
+
+# cat > /dev/g_printer<number>
+host:
+# cat /dev/usb/lp0
+
+More advanced testing can be done with the prn_example
+described in Documentation/usb/gadget-printer.txt.
diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt
index b112efc..bc9f6fe 100644
--- a/Documentation/virtual/kvm/api.txt
+++ b/Documentation/virtual/kvm/api.txt
@@ -997,7 +997,7 @@ for vm-wide capabilities.
 4.38 KVM_GET_MP_STATE
 
 Capability: KVM_CAP_MP_STATE
-Architectures: x86, s390
+Architectures: x86, s390, arm, arm64
 Type: vcpu ioctl
 Parameters: struct kvm_mp_state (out)
 Returns: 0 on success; -1 on error
@@ -1011,7 +1011,7 @@ uniprocessor guests).
 
 Possible values are:
 
- - KVM_MP_STATE_RUNNABLE:        the vcpu is currently running [x86]
+ - KVM_MP_STATE_RUNNABLE:        the vcpu is currently running [x86,arm/arm64]
  - KVM_MP_STATE_UNINITIALIZED:   the vcpu is an application processor (AP)
                                  which has not yet received an INIT signal [x86]
  - KVM_MP_STATE_INIT_RECEIVED:   the vcpu has received an INIT signal, and is
@@ -1020,7 +1020,7 @@ Possible values are:
                                  is waiting for an interrupt [x86]
  - KVM_MP_STATE_SIPI_RECEIVED:   the vcpu has just received a SIPI (vector
                                  accessible via KVM_GET_VCPU_EVENTS) [x86]
- - KVM_MP_STATE_STOPPED:         the vcpu is stopped [s390]
+ - KVM_MP_STATE_STOPPED:         the vcpu is stopped [s390,arm/arm64]
  - KVM_MP_STATE_CHECK_STOP:      the vcpu is in a special error state [s390]
  - KVM_MP_STATE_OPERATING:       the vcpu is operating (running or halted)
                                  [s390]
@@ -1031,11 +1031,15 @@ On x86, this ioctl is only useful after KVM_CREATE_IRQCHIP. Without an
 in-kernel irqchip, the multiprocessing state must be maintained by userspace on
 these architectures.
 
+For arm/arm64:
+
+The only states that are valid are KVM_MP_STATE_STOPPED and
+KVM_MP_STATE_RUNNABLE which reflect if the vcpu is paused or not.
 
 4.39 KVM_SET_MP_STATE
 
 Capability: KVM_CAP_MP_STATE
-Architectures: x86, s390
+Architectures: x86, s390, arm, arm64
 Type: vcpu ioctl
 Parameters: struct kvm_mp_state (in)
 Returns: 0 on success; -1 on error
@@ -1047,6 +1051,10 @@ On x86, this ioctl is only useful after KVM_CREATE_IRQCHIP. Without an
 in-kernel irqchip, the multiprocessing state must be maintained by userspace on
 these architectures.
 
+For arm/arm64:
+
+The only states that are valid are KVM_MP_STATE_STOPPED and
+KVM_MP_STATE_RUNNABLE which reflect if the vcpu should be paused or not.
 
 4.40 KVM_SET_IDENTITY_MAP_ADDR
 
@@ -1967,15 +1975,25 @@ registers, find a list below:
   MIPS  | KVM_REG_MIPS_CP0_STATUS       | 32
   MIPS  | KVM_REG_MIPS_CP0_CAUSE        | 32
   MIPS  | KVM_REG_MIPS_CP0_EPC          | 64
+  MIPS  | KVM_REG_MIPS_CP0_PRID         | 32
   MIPS  | KVM_REG_MIPS_CP0_CONFIG       | 32
   MIPS  | KVM_REG_MIPS_CP0_CONFIG1      | 32
   MIPS  | KVM_REG_MIPS_CP0_CONFIG2      | 32
   MIPS  | KVM_REG_MIPS_CP0_CONFIG3      | 32
+  MIPS  | KVM_REG_MIPS_CP0_CONFIG4      | 32
+  MIPS  | KVM_REG_MIPS_CP0_CONFIG5      | 32
   MIPS  | KVM_REG_MIPS_CP0_CONFIG7      | 32
   MIPS  | KVM_REG_MIPS_CP0_ERROREPC     | 64
   MIPS  | KVM_REG_MIPS_COUNT_CTL        | 64
   MIPS  | KVM_REG_MIPS_COUNT_RESUME     | 64
   MIPS  | KVM_REG_MIPS_COUNT_HZ         | 64
+  MIPS  | KVM_REG_MIPS_FPR_32(0..31)    | 32
+  MIPS  | KVM_REG_MIPS_FPR_64(0..31)    | 64
+  MIPS  | KVM_REG_MIPS_VEC_128(0..31)   | 128
+  MIPS  | KVM_REG_MIPS_FCR_IR           | 32
+  MIPS  | KVM_REG_MIPS_FCR_CSR          | 32
+  MIPS  | KVM_REG_MIPS_MSA_IR           | 32
+  MIPS  | KVM_REG_MIPS_MSA_CSR          | 32
 
 ARM registers are mapped using the lower 32 bits.  The upper 16 of that
 is the register group type, or coprocessor number:
@@ -2029,6 +2047,25 @@ patterns depending on whether they're 32-bit or 64-bit registers:
 MIPS KVM control registers (see above) have the following id bit patterns:
   0x7030 0000 0002 <reg:16>
 
+MIPS FPU registers (see KVM_REG_MIPS_FPR_{32,64}() above) have the following
+id bit patterns depending on the size of the register being accessed. They are
+always accessed according to the current guest FPU mode (Status.FR and
+Config5.FRE), i.e. as the guest would see them, and they become unpredictable
+if the guest FPU mode is changed. MIPS SIMD Architecture (MSA) vector
+registers (see KVM_REG_MIPS_VEC_128() above) have similar patterns as they
+overlap the FPU registers:
+  0x7020 0000 0003 00 <0:3> <reg:5> (32-bit FPU registers)
+  0x7030 0000 0003 00 <0:3> <reg:5> (64-bit FPU registers)
+  0x7040 0000 0003 00 <0:3> <reg:5> (128-bit MSA vector registers)
+
+MIPS FPU control registers (see KVM_REG_MIPS_FCR_{IR,CSR} above) have the
+following id bit patterns:
+  0x7020 0000 0003 01 <0:3> <reg:5>
+
+MIPS MSA control registers (see KVM_REG_MIPS_MSA_{IR,CSR} above) have the
+following id bit patterns:
+  0x7020 0000 0003 02 <0:3> <reg:5>
+
 
 4.69 KVM_GET_ONE_REG
 
@@ -2234,7 +2271,7 @@ into the hash PTE second double word).
 4.75 KVM_IRQFD
 
 Capability: KVM_CAP_IRQFD
-Architectures: x86 s390
+Architectures: x86 s390 arm arm64
 Type: vm ioctl
 Parameters: struct kvm_irqfd (in)
 Returns: 0 on success, -1 on error
@@ -2260,6 +2297,10 @@ Note that closing the resamplefd is not sufficient to disable the
 irqfd.  The KVM_IRQFD_FLAG_RESAMPLE is only necessary on assignment
 and need not be specified with KVM_IRQFD_FLAG_DEASSIGN.
 
+On ARM/ARM64, the gsi field in the kvm_irqfd struct specifies the Shared
+Peripheral Interrupt (SPI) index, such that the GIC interrupt ID is
+given by gsi + 32.
+
 4.76 KVM_PPC_ALLOCATE_HTAB
 
 Capability: KVM_CAP_PPC_ALLOC_HTAB
@@ -2716,6 +2757,227 @@ The fields in each entry are defined as follows:
    eax, ebx, ecx, edx: the values returned by the cpuid instruction for
          this function/index combination
 
+4.89 KVM_S390_MEM_OP
+
+Capability: KVM_CAP_S390_MEM_OP
+Architectures: s390
+Type: vcpu ioctl
+Parameters: struct kvm_s390_mem_op (in)
+Returns: = 0 on success,
+         < 0 on generic error (e.g. -EFAULT or -ENOMEM),
+         > 0 if an exception occurred while walking the page tables
+
+Read or write data from/to the logical (virtual) memory of a VPCU.
+
+Parameters are specified via the following structure:
+
+struct kvm_s390_mem_op {
+	__u64 gaddr;		/* the guest address */
+	__u64 flags;		/* flags */
+	__u32 size;		/* amount of bytes */
+	__u32 op;		/* type of operation */
+	__u64 buf;		/* buffer in userspace */
+	__u8 ar;		/* the access register number */
+	__u8 reserved[31];	/* should be set to 0 */
+};
+
+The type of operation is specified in the "op" field. It is either
+KVM_S390_MEMOP_LOGICAL_READ for reading from logical memory space or
+KVM_S390_MEMOP_LOGICAL_WRITE for writing to logical memory space. The
+KVM_S390_MEMOP_F_CHECK_ONLY flag can be set in the "flags" field to check
+whether the corresponding memory access would create an access exception
+(without touching the data in the memory at the destination). In case an
+access exception occurred while walking the MMU tables of the guest, the
+ioctl returns a positive error number to indicate the type of exception.
+This exception is also raised directly at the corresponding VCPU if the
+flag KVM_S390_MEMOP_F_INJECT_EXCEPTION is set in the "flags" field.
+
+The start address of the memory region has to be specified in the "gaddr"
+field, and the length of the region in the "size" field. "buf" is the buffer
+supplied by the userspace application where the read data should be written
+to for KVM_S390_MEMOP_LOGICAL_READ, or where the data that should be written
+is stored for a KVM_S390_MEMOP_LOGICAL_WRITE. "buf" is unused and can be NULL
+when KVM_S390_MEMOP_F_CHECK_ONLY is specified. "ar" designates the access
+register number to be used.
+
+The "reserved" field is meant for future extensions. It is not used by
+KVM with the currently defined set of flags.
+
+4.90 KVM_S390_GET_SKEYS
+
+Capability: KVM_CAP_S390_SKEYS
+Architectures: s390
+Type: vm ioctl
+Parameters: struct kvm_s390_skeys
+Returns: 0 on success, KVM_S390_GET_KEYS_NONE if guest is not using storage
+         keys, negative value on error
+
+This ioctl is used to get guest storage key values on the s390
+architecture. The ioctl takes parameters via the kvm_s390_skeys struct.
+
+struct kvm_s390_skeys {
+	__u64 start_gfn;
+	__u64 count;
+	__u64 skeydata_addr;
+	__u32 flags;
+	__u32 reserved[9];
+};
+
+The start_gfn field is the number of the first guest frame whose storage keys
+you want to get.
+
+The count field is the number of consecutive frames (starting from start_gfn)
+whose storage keys to get. The count field must be at least 1 and the maximum
+allowed value is defined as KVM_S390_SKEYS_ALLOC_MAX. Values outside this range
+will cause the ioctl to return -EINVAL.
+
+The skeydata_addr field is the address to a buffer large enough to hold count
+bytes. This buffer will be filled with storage key data by the ioctl.
+
+4.91 KVM_S390_SET_SKEYS
+
+Capability: KVM_CAP_S390_SKEYS
+Architectures: s390
+Type: vm ioctl
+Parameters: struct kvm_s390_skeys
+Returns: 0 on success, negative value on error
+
+This ioctl is used to set guest storage key values on the s390
+architecture. The ioctl takes parameters via the kvm_s390_skeys struct.
+See section on KVM_S390_GET_SKEYS for struct definition.
+
+The start_gfn field is the number of the first guest frame whose storage keys
+you want to set.
+
+The count field is the number of consecutive frames (starting from start_gfn)
+whose storage keys to get. The count field must be at least 1 and the maximum
+allowed value is defined as KVM_S390_SKEYS_ALLOC_MAX. Values outside this range
+will cause the ioctl to return -EINVAL.
+
+The skeydata_addr field is the address to a buffer containing count bytes of
+storage keys. Each byte in the buffer will be set as the storage key for a
+single frame starting at start_gfn for count frames.
+
+Note: If any architecturally invalid key value is found in the given data then
+the ioctl will return -EINVAL.
+
+4.92 KVM_S390_IRQ
+
+Capability: KVM_CAP_S390_INJECT_IRQ
+Architectures: s390
+Type: vcpu ioctl
+Parameters: struct kvm_s390_irq (in)
+Returns: 0 on success, -1 on error
+Errors:
+  EINVAL: interrupt type is invalid
+          type is KVM_S390_SIGP_STOP and flag parameter is invalid value
+          type is KVM_S390_INT_EXTERNAL_CALL and code is bigger
+            than the maximum of VCPUs
+  EBUSY:  type is KVM_S390_SIGP_SET_PREFIX and vcpu is not stopped
+          type is KVM_S390_SIGP_STOP and a stop irq is already pending
+          type is KVM_S390_INT_EXTERNAL_CALL and an external call interrupt
+            is already pending
+
+Allows to inject an interrupt to the guest.
+
+Using struct kvm_s390_irq as a parameter allows
+to inject additional payload which is not
+possible via KVM_S390_INTERRUPT.
+
+Interrupt parameters are passed via kvm_s390_irq:
+
+struct kvm_s390_irq {
+	__u64 type;
+	union {
+		struct kvm_s390_io_info io;
+		struct kvm_s390_ext_info ext;
+		struct kvm_s390_pgm_info pgm;
+		struct kvm_s390_emerg_info emerg;
+		struct kvm_s390_extcall_info extcall;
+		struct kvm_s390_prefix_info prefix;
+		struct kvm_s390_stop_info stop;
+		struct kvm_s390_mchk_info mchk;
+		char reserved[64];
+	} u;
+};
+
+type can be one of the following:
+
+KVM_S390_SIGP_STOP - sigp stop; parameter in .stop
+KVM_S390_PROGRAM_INT - program check; parameters in .pgm
+KVM_S390_SIGP_SET_PREFIX - sigp set prefix; parameters in .prefix
+KVM_S390_RESTART - restart; no parameters
+KVM_S390_INT_CLOCK_COMP - clock comparator interrupt; no parameters
+KVM_S390_INT_CPU_TIMER - CPU timer interrupt; no parameters
+KVM_S390_INT_EMERGENCY - sigp emergency; parameters in .emerg
+KVM_S390_INT_EXTERNAL_CALL - sigp external call; parameters in .extcall
+KVM_S390_MCHK - machine check interrupt; parameters in .mchk
+
+
+Note that the vcpu ioctl is asynchronous to vcpu execution.
+
+4.94 KVM_S390_GET_IRQ_STATE
+
+Capability: KVM_CAP_S390_IRQ_STATE
+Architectures: s390
+Type: vcpu ioctl
+Parameters: struct kvm_s390_irq_state (out)
+Returns: >= number of bytes copied into buffer,
+         -EINVAL if buffer size is 0,
+         -ENOBUFS if buffer size is too small to fit all pending interrupts,
+         -EFAULT if the buffer address was invalid
+
+This ioctl allows userspace to retrieve the complete state of all currently
+pending interrupts in a single buffer. Use cases include migration
+and introspection. The parameter structure contains the address of a
+userspace buffer and its length:
+
+struct kvm_s390_irq_state {
+	__u64 buf;
+	__u32 flags;
+	__u32 len;
+	__u32 reserved[4];
+};
+
+Userspace passes in the above struct and for each pending interrupt a
+struct kvm_s390_irq is copied to the provided buffer.
+
+If -ENOBUFS is returned the buffer provided was too small and userspace
+may retry with a bigger buffer.
+
+4.95 KVM_S390_SET_IRQ_STATE
+
+Capability: KVM_CAP_S390_IRQ_STATE
+Architectures: s390
+Type: vcpu ioctl
+Parameters: struct kvm_s390_irq_state (in)
+Returns: 0 on success,
+         -EFAULT if the buffer address was invalid,
+         -EINVAL for an invalid buffer length (see below),
+         -EBUSY if there were already interrupts pending,
+         errors occurring when actually injecting the
+          interrupt. See KVM_S390_IRQ.
+
+This ioctl allows userspace to set the complete state of all cpu-local
+interrupts currently pending for the vcpu. It is intended for restoring
+interrupt state after a migration. The input parameter is a userspace buffer
+containing a struct kvm_s390_irq_state:
+
+struct kvm_s390_irq_state {
+	__u64 buf;
+	__u32 len;
+	__u32 pad;
+};
+
+The userspace memory referenced by buf contains a struct kvm_s390_irq
+for each interrupt to be injected into the guest.
+If one of the interrupts could not be injected for some reason the
+ioctl aborts.
+
+len must be a multiple of sizeof(struct kvm_s390_irq). It must be > 0
+and it must not exceed (max_vcpus + 32) * sizeof(struct kvm_s390_irq),
+which is the maximum number of possibly pending cpu-local interrupts.
+
 5. The kvm_run structure
 ------------------------
 
@@ -3189,6 +3451,31 @@ Parameters: none
 This capability enables the in-kernel irqchip for s390. Please refer to
 "4.24 KVM_CREATE_IRQCHIP" for details.
 
+6.9 KVM_CAP_MIPS_FPU
+
+Architectures: mips
+Target: vcpu
+Parameters: args[0] is reserved for future use (should be 0).
+
+This capability allows the use of the host Floating Point Unit by the guest. It
+allows the Config1.FP bit to be set to enable the FPU in the guest. Once this is
+done the KVM_REG_MIPS_FPR_* and KVM_REG_MIPS_FCR_* registers can be accessed
+(depending on the current guest FPU register mode), and the Status.FR,
+Config5.FRE bits are accessible via the KVM API and also from the guest,
+depending on them being supported by the FPU.
+
+6.10 KVM_CAP_MIPS_MSA
+
+Architectures: mips
+Target: vcpu
+Parameters: args[0] is reserved for future use (should be 0).
+
+This capability allows the use of the MIPS SIMD Architecture (MSA) by the guest.
+It allows the Config3.MSAP bit to be set to enable the use of MSA by the guest.
+Once this is done the KVM_REG_MIPS_VEC_* and KVM_REG_MIPS_MSA_* registers can be
+accessed, and the Config5.MSAEn bit is accessible via the KVM API and also from
+the guest.
+
 7. Capabilities that can be enabled on VMs
 ------------------------------------------
 
@@ -3248,3 +3535,41 @@ All other orders will be handled completely in user space.
 Only privileged operation exceptions will be checked for in the kernel (or even
 in the hardware prior to interception). If this capability is not enabled, the
 old way of handling SIGP orders is used (partially in kernel and user space).
+
+7.3 KVM_CAP_S390_VECTOR_REGISTERS
+
+Architectures: s390
+Parameters: none
+Returns: 0 on success, negative value on error
+
+Allows use of the vector registers introduced with z13 processor, and
+provides for the synchronization between host and user space.  Will
+return -EINVAL if the machine does not support vectors.
+
+7.4 KVM_CAP_S390_USER_STSI
+
+Architectures: s390
+Parameters: none
+
+This capability allows post-handlers for the STSI instruction. After
+initial handling in the kernel, KVM exits to user space with
+KVM_EXIT_S390_STSI to allow user space to insert further data.
+
+Before exiting to userspace, kvm handlers should fill in s390_stsi field of
+vcpu->run:
+struct {
+	__u64 addr;
+	__u8 ar;
+	__u8 reserved;
+	__u8 fc;
+	__u8 sel1;
+	__u16 sel2;
+} s390_stsi;
+
+@addr - guest address of STSI SYSIB
+@fc   - function code
+@sel1 - selector 1
+@sel2 - selector 2
+@ar   - access register number
+
+KVM handlers should exit to userspace with rc = -EREMOTE.
diff --git a/Documentation/virtual/kvm/devices/s390_flic.txt b/Documentation/virtual/kvm/devices/s390_flic.txt
index 4ceef53..d1ad9d5 100644
--- a/Documentation/virtual/kvm/devices/s390_flic.txt
+++ b/Documentation/virtual/kvm/devices/s390_flic.txt
@@ -27,6 +27,9 @@ Groups:
     Copies all floating interrupts into a buffer provided by userspace.
     When the buffer is too small it returns -ENOMEM, which is the indication
     for userspace to try again with a bigger buffer.
+    -ENOBUFS is returned when the allocation of a kernelspace buffer has
+    failed.
+    -EFAULT is returned when copying data to userspace failed.
     All interrupts remain pending, i.e. are not deleted from the list of
     currently pending interrupts.
     attr->addr contains the userspace address of the buffer into which all
diff --git a/Documentation/x86/boot.txt b/Documentation/x86/boot.txt
index a75e3ad..88b8589 100644
--- a/Documentation/x86/boot.txt
+++ b/Documentation/x86/boot.txt
@@ -406,6 +406,12 @@ Protocol:	2.00+
 	- If 0, the protected-mode code is loaded at 0x10000.
 	- If 1, the protected-mode code is loaded at 0x100000.
 
+  Bit 1 (kernel internal): ALSR_FLAG
+	- Used internally by the compressed kernel to communicate
+	  KASLR status to kernel proper.
+	  If 1, KASLR enabled.
+	  If 0, KASLR disabled.
+
   Bit 5 (write): QUIET_FLAG
 	- If 0, print early messages.
 	- If 1, suppress early messages.
diff --git a/MAINTAINERS b/MAINTAINERS
index ddc5a8c..38579ac 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -637,8 +637,7 @@ F:      drivers/gpu/drm/radeon/radeon_kfd.h
 F:      include/uapi/linux/kfd_ioctl.h
 
 AMD MICROCODE UPDATE SUPPORT
-M:	Andreas Herrmann <herrmann.der.user@googlemail.com>
-L:	amd64-microcode@amd64.org
+M:	Borislav Petkov <bp@alien8.de>
 S:	Maintained
 F:	arch/x86/kernel/cpu/microcode/amd*
 
@@ -725,7 +724,7 @@ F:	staging/iio/trigger/iio-trig-bfin-timer.c
 
 ANDROID DRIVERS
 M:	Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-M:	Arve Hjønnevåg <arve@android.com>
+M:	Arve Hjønnevåg <arve@android.com>
 M:	Riley Andrews <riandrews@android.com>
 T:	git git://git.kernel.org/pub/scm/linux/kernel/gregkh/staging.git
 L:	devel@driverdev.osuosl.org
@@ -1030,6 +1029,16 @@ F:	arch/arm/mach-mxs/
 F:	arch/arm/boot/dts/imx*
 F:	arch/arm/configs/imx*_defconfig
 
+ARM/FREESCALE VYBRID ARM ARCHITECTURE
+M:	Shawn Guo <shawn.guo@linaro.org>
+M:	Sascha Hauer <kernel@pengutronix.de>
+R:	Stefan Agner <stefan@agner.ch>
+L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+S:	Maintained
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux.git
+F:	arch/arm/mach-imx/*vf610*
+F:	arch/arm/boot/dts/vf*
+
 ARM/GLOMATION GESBC9312SX MACHINE SUPPORT
 M:	Lennert Buytenhek <kernel@wantstofly.org>
 L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
@@ -1176,7 +1185,7 @@ M:	Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
 L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 S:	Maintained
 F:	arch/arm/mach-mvebu/
-F:	drivers/rtc/armada38x-rtc
+F:	drivers/rtc/rtc-armada38x.c
 
 ARM/Marvell Berlin SoC support
 M:	Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
@@ -1188,6 +1197,7 @@ ARM/Marvell Dove/MV78xx0/Orion SOC support
 M:	Jason Cooper <jason@lakedaemon.net>
 M:	Andrew Lunn <andrew@lunn.ch>
 M:	Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
+M:	Gregory Clement <gregory.clement@free-electrons.com>
 L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 S:	Maintained
 F:	arch/arm/mach-dove/
@@ -1351,6 +1361,7 @@ F:	drivers/i2c/busses/i2c-rk3x.c
 F:	drivers/*/*rockchip*
 F:	drivers/*/*/*rockchip*
 F:	sound/soc/rockchip/
+N:	rockchip
 
 ARM/SAMSUNG EXYNOS ARM ARCHITECTURES
 M:	Kukjin Kim <kgene@kernel.org>
@@ -1457,6 +1468,8 @@ F:	drivers/clocksource/arm_global_timer.c
 F:	drivers/i2c/busses/i2c-st.c
 F:	drivers/media/rc/st_rc.c
 F:	drivers/mmc/host/sdhci-st.c
+F:	drivers/phy/phy-miphy28lp.c
+F:	drivers/phy/phy-miphy365x.c
 F:	drivers/phy/phy-stih407-usb.c
 F:	drivers/phy/phy-stih41x-usb.c
 F:	drivers/pinctrl/pinctrl-st.c
@@ -1664,8 +1677,8 @@ F:	drivers/misc/eeprom/at24.c
 F:	include/linux/platform_data/at24.h
 
 ATA OVER ETHERNET (AOE) DRIVER
-M:	"Ed L. Cashin" <ecashin@coraid.com>
-W:	http://support.coraid.com/support/linux
+M:	"Ed L. Cashin" <ed.cashin@acm.org>
+W:	http://www.openaoe.org/
 S:	Supported
 F:	Documentation/aoe/
 F:	drivers/block/aoe/
@@ -1730,7 +1743,7 @@ S:	Maintained
 F:	drivers/net/ethernet/atheros/
 
 ATM
-M:	Chas Williams <chas@cmf.nrl.navy.mil>
+M:	Chas Williams <3chas3@gmail.com>
 L:	linux-atm-general@lists.sourceforge.net (moderated for non-subscribers)
 L:	netdev@vger.kernel.org
 W:	http://linux-atm.sourceforge.net
@@ -2065,7 +2078,7 @@ F:	include/net/bluetooth/
 BONDING DRIVER
 M:	Jay Vosburgh <j.vosburgh@gmail.com>
 M:	Veaceslav Falico <vfalico@gmail.com>
-M:	Andy Gospodarek <andy@greyhouse.net>
+M:	Andy Gospodarek <gospo@cumulusnetworks.com>
 L:	netdev@vger.kernel.org
 W:	http://sourceforge.net/projects/bonding/
 S:	Supported
@@ -2107,7 +2120,6 @@ F:	drivers/net/ethernet/broadcom/bnx2x/
 
 BROADCOM BCM281XX/BCM11XXX/BCM216XX ARM ARCHITECTURE
 M:	Christian Daudt <bcm@fixthebug.org>
-M:	Matt Porter <mporter@linaro.org>
 M:	Florian Fainelli <f.fainelli@gmail.com>
 L:	bcm-kernel-feedback-list@broadcom.com
 T:	git git://github.com/broadcom/mach-bcm
@@ -2369,8 +2381,9 @@ F:	arch/x86/include/asm/tce.h
 
 CAN NETWORK LAYER
 M:	Oliver Hartkopp <socketcan@hartkopp.net>
+M:	Marc Kleine-Budde <mkl@pengutronix.de>
 L:	linux-can@vger.kernel.org
-W:	http://gitorious.org/linux-can
+W:	https://github.com/linux-can
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can.git
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next.git
 S:	Maintained
@@ -2386,7 +2399,7 @@ CAN NETWORK DRIVERS
 M:	Wolfgang Grandegger <wg@grandegger.com>
 M:	Marc Kleine-Budde <mkl@pengutronix.de>
 L:	linux-can@vger.kernel.org
-W:	http://gitorious.org/linux-can
+W:	https://github.com/linux-can
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can.git
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next.git
 S:	Maintained
@@ -2507,7 +2520,7 @@ F:	Documentation/zh_CN/
 
 CHIPIDEA USB HIGH SPEED DUAL ROLE CONTROLLER
 M:	Peter Chen <Peter.Chen@freescale.com>
-T:	git git://github.com/hzpeterchen/linux-usb.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/peter.chen/usb.git
 L:	linux-usb@vger.kernel.org
 S:	Maintained
 F:	drivers/usb/chipidea/
@@ -3126,12 +3139,15 @@ S:	Supported
 F:	Documentation/hwmon/da90??
 F:	drivers/gpio/gpio-da90??.c
 F:	drivers/hwmon/da90??-hwmon.c
+F:	drivers/iio/adc/da91??-*.c
 F:	drivers/input/misc/da90??_onkey.c
 F:	drivers/input/touchscreen/da9052_tsi.c
 F:	drivers/leds/leds-da90??.c
 F:	drivers/mfd/da903x.c
 F:	drivers/mfd/da90??-*.c
+F:	drivers/mfd/da91??-*.c
 F:	drivers/power/da9052-battery.c
+F:	drivers/power/da91??-*.c
 F:	drivers/regulator/da903x.c
 F:	drivers/regulator/da9???-regulator.[ch]
 F:	drivers/rtc/rtc-da90??.c
@@ -3141,6 +3157,7 @@ F:	include/linux/mfd/da903x.h
 F:	include/linux/mfd/da9052/
 F:	include/linux/mfd/da9055/
 F:	include/linux/mfd/da9063/
+F:	include/linux/mfd/da9150/
 F:	include/sound/da[79]*.h
 F:	sound/soc/codecs/da[79]*.[ch]
 
@@ -3241,6 +3258,13 @@ S:	Maintained
 F:	Documentation/hwmon/dme1737
 F:	drivers/hwmon/dme1737.c
 
+DMI/SMBIOS SUPPORT
+M:	Jean Delvare <jdelvare@suse.de>
+S:	Maintained
+F:	drivers/firmware/dmi-id.c
+F:	drivers/firmware/dmi_scan.c
+F:	include/linux/dmi.h
+
 DOCKING STATION DRIVER
 M:	Shaohua Li <shaohua.li@intel.com>
 L:	linux-acpi@vger.kernel.org
@@ -4145,6 +4169,12 @@ F:	sound/soc/fsl/fsl*
 F:	sound/soc/fsl/imx*
 F:	sound/soc/fsl/mpc8610_hpcd.c
 
+FREESCALE QORIQ MANAGEMENT COMPLEX DRIVER
+M:	J. German Rivera <German.Rivera@freescale.com>
+L:	linux-kernel@vger.kernel.org
+S:	Maintained
+F:	drivers/staging/fsl-mc/
+
 FREEVXFS FILESYSTEM
 M:	Christoph Hellwig <hch@infradead.org>
 W:	ftp://ftp.openlinux.org/pub/people/hch/vxfs
@@ -4930,6 +4960,7 @@ S:	Maintained
 F:	drivers/iio/
 F:	drivers/staging/iio/
 F:	include/linux/iio/
+F:	tools/iio/
 
 IKANOS/ADI EAGLE ADSL USB DRIVER
 M:	Matthieu Castet <castet.matthieu@free.fr>
@@ -5076,7 +5107,7 @@ S:	Supported
 F:	drivers/platform/x86/intel_menlow.c
 
 INTEL IA32 MICROCODE UPDATE SUPPORT
-M:	Tigran Aivazian <tigran@aivazian.fsnet.co.uk>
+M:	Borislav Petkov <bp@alien8.de>
 S:	Maintained
 F:	arch/x86/kernel/cpu/microcode/core*
 F:	arch/x86/kernel/cpu/microcode/intel*
@@ -5117,22 +5148,21 @@ M:	Deepak Saxena <dsaxena@plexity.net>
 S:	Maintained
 F:	drivers/char/hw_random/ixp4xx-rng.c
 
-INTEL ETHERNET DRIVERS (e100/e1000/e1000e/fm10k/igb/igbvf/ixgb/ixgbe/ixgbevf/i40e/i40evf)
+INTEL ETHERNET DRIVERS
 M:	Jeff Kirsher <jeffrey.t.kirsher@intel.com>
-M:	Jesse Brandeburg <jesse.brandeburg@intel.com>
-M:	Bruce Allan <bruce.w.allan@intel.com>
-M:	Carolyn Wyborny <carolyn.wyborny@intel.com>
-M:	Don Skidmore <donald.c.skidmore@intel.com>
-M:	Greg Rose <gregory.v.rose@intel.com>
-M:	Matthew Vick <matthew.vick@intel.com>
-M:	John Ronciak <john.ronciak@intel.com>
-M:	Mitch Williams <mitch.a.williams@intel.com>
-M:	Linux NICS <linux.nics@intel.com>
-L:	e1000-devel@lists.sourceforge.net
+R:	Jesse Brandeburg <jesse.brandeburg@intel.com>
+R:	Shannon Nelson <shannon.nelson@intel.com>
+R:	Carolyn Wyborny <carolyn.wyborny@intel.com>
+R:	Don Skidmore <donald.c.skidmore@intel.com>
+R:	Matthew Vick <matthew.vick@intel.com>
+R:	John Ronciak <john.ronciak@intel.com>
+R:	Mitch Williams <mitch.a.williams@intel.com>
+L:	intel-wired-lan@lists.osuosl.org
 W:	http://www.intel.com/support/feedback.htm
 W:	http://e1000.sourceforge.net/
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net.git
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-next.git
+Q:	http://patchwork.ozlabs.org/project/intel-wired-lan/list/
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-queue.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue.git
 S:	Supported
 F:	Documentation/networking/e100.txt
 F:	Documentation/networking/e1000.txt
@@ -5574,6 +5604,8 @@ S:	Supported
 F:	Documentation/*/kvm*.txt
 F:	Documentation/virtual/kvm/
 F:	arch/*/kvm/
+F:	arch/x86/kernel/kvm.c
+F:	arch/x86/kernel/kvmclock.c
 F:	arch/*/include/asm/kvm*
 F:	include/linux/kvm*
 F:	include/uapi/linux/kvm*
@@ -6547,10 +6579,8 @@ F:	drivers/mfd/
 F:	include/linux/mfd/
 
 MULTIMEDIA CARD (MMC), SECURE DIGITAL (SD) AND SDIO SUBSYSTEM
-M:	Chris Ball <chris@printf.net>
 M:	Ulf Hansson <ulf.hansson@linaro.org>
 L:	linux-mmc@vger.kernel.org
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc.git
 T:	git git://git.linaro.org/people/ulf.hansson/mmc.git
 S:	Maintained
 F:	drivers/mmc/
@@ -7213,8 +7243,7 @@ ORACLE CLUSTER FILESYSTEM 2 (OCFS2)
 M:	Mark Fasheh <mfasheh@suse.com>
 M:	Joel Becker <jlbec@evilplan.org>
 L:	ocfs2-devel@oss.oracle.com (moderated for non-subscribers)
-W:	http://oss.oracle.com/projects/ocfs2/
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2.git
+W:	http://ocfs2.wiki.kernel.org
 S:	Supported
 F:	Documentation/filesystems/ocfs2.txt
 F:	Documentation/filesystems/dlmfs.txt
@@ -8481,6 +8510,14 @@ S:	Supported
 L:	netdev@vger.kernel.org
 F:	drivers/net/ethernet/samsung/sxgbe/
 
+SAMSUNG THERMAL DRIVER
+M:	Lukasz Majewski <l.majewski@samsung.com>
+L:	linux-pm@vger.kernel.org
+L:	linux-samsung-soc@vger.kernel.org
+S:	Supported
+T:	https://github.com/lmajewski/linux-samsung-thermal.git
+F:	drivers/thermal/samsung/
+
 SAMSUNG USB2 PHY DRIVER
 M:	Kamil Debski <k.debski@samsung.com>
 L:	linux-kernel@vger.kernel.org
@@ -8535,6 +8572,7 @@ F:	include/uapi/linux/timex.h
 F:	kernel/time/clocksource.c
 F:	kernel/time/time*.c
 F:	kernel/time/ntp.c
+F:	tools/testing/selftests/timers/
 
 SC1200 WDT DRIVER
 M:	Zwane Mwaikambo <zwanem@gmail.com>
@@ -8643,10 +8681,8 @@ S:	Maintained
 F:	drivers/mmc/host/sdricoh_cs.c
 
 SECURE DIGITAL HOST CONTROLLER INTERFACE (SDHCI) DRIVER
-M:	Chris Ball <chris@printf.net>
 L:	linux-mmc@vger.kernel.org
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc.git
-S:	Maintained
+S:	Orphan
 F:	drivers/mmc/host/sdhci.*
 F:	drivers/mmc/host/sdhci-pltfm.[ch]
 
@@ -8662,18 +8698,12 @@ F:	include/linux/seccomp.h
 K:	\bsecure_computing
 K:	\bTIF_SECCOMP\b
 
-SECURE DIGITAL HOST CONTROLLER INTERFACE, OPEN FIRMWARE BINDINGS (SDHCI-OF)
-M:	Anton Vorontsov <anton@enomsg.org>
-L:	linuxppc-dev@lists.ozlabs.org
-L:	linux-mmc@vger.kernel.org
-S:	Maintained
-F:	drivers/mmc/host/sdhci-pltfm.[ch]
-
 SECURE DIGITAL HOST CONTROLLER INTERFACE (SDHCI) SAMSUNG DRIVER
 M:	Ben Dooks <ben-linux@fluff.org>
+M:	Jaehoon Chung <jh80.chung@samsung.com>
 L:	linux-mmc@vger.kernel.org
 S:	Maintained
-F:	drivers/mmc/host/sdhci-s3c.c
+F:	drivers/mmc/host/sdhci-s3c*
 
 SECURE DIGITAL HOST CONTROLLER INTERFACE (SDHCI) ST SPEAR DRIVER
 M:	Viresh Kumar <viresh.linux@gmail.com>
@@ -9340,6 +9370,14 @@ L:	linux-fbdev@vger.kernel.org
 S:	Maintained
 F:	drivers/staging/sm7xxfb/
 
+STAGING - SILICON MOTION SM750 FRAME BUFFER DRIVER
+M:	Sudip Mukherjee <sudipm.mukherjee@gmail.com>
+M:	Teddy Wang <teddy.wang@siliconmotion.com>
+M:	Sudip Mukherjee <sudip@vectorindia.org>
+L:	linux-fbdev@vger.kernel.org
+S:	Maintained
+F:	drivers/staging/sm750fb/
+
 STAGING - SLICOSS
 M:	Lior Dotan <liodot@gmail.com>
 M:	Christopher Harrer <charrer@alacritech.com>
@@ -10111,6 +10149,12 @@ S:	Maintained
 F:	drivers/net/usb/cdc_*.c
 F:	include/uapi/linux/usb/cdc.h
 
+USB CHAOSKEY DRIVER
+M:	Keith Packard <keithp@keithp.com>
+L:	linux-usb@vger.kernel.org
+S:	Maintained
+F:	drivers/usb/misc/chaoskey.c
+
 USB CYPRESS C67X00 DRIVER
 M:	Peter Korsgaard <jacmet@sunsite.dk>
 L:	linux-usb@vger.kernel.org
@@ -10189,6 +10233,13 @@ S:	Maintained
 F:	Documentation/usb/ohci.txt
 F:	drivers/usb/host/ohci*
 
+USB OTG FSM (Finite State Machine)
+M:	Peter Chen <Peter.Chen@freescale.com>
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/peter.chen/usb.git
+L:	linux-usb@vger.kernel.org
+S:	Maintained
+F:	drivers/usb/common/usb-otg-fsm.c
+
 USB OVER IP DRIVER
 M:	Valentina Manea <valentina.manea.m@gmail.com>
 M:	Shuah Khan <shuah.kh@samsung.com>
diff --git a/Makefile b/Makefile
index 9fab639..9b76ce1 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 VERSION = 4
 PATCHLEVEL = 0
 SUBLEVEL = 0
-EXTRAVERSION = -rc1
+EXTRAVERSION =
 NAME = Hurr durr I'ma sheep
 
 # *DOCUMENTATION*
@@ -779,6 +779,7 @@ KBUILD_ARFLAGS := $(call ar-option,D)
 # check for 'asm goto'
 ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-goto.sh $(CC)), y)
 	KBUILD_CFLAGS += -DCC_HAVE_ASM_GOTO
+	KBUILD_AFLAGS += -DCC_HAVE_ASM_GOTO
 endif
 
 include $(srctree)/scripts/Makefile.kasan
diff --git a/arch/alpha/kernel/pci.c b/arch/alpha/kernel/pci.c
index 98a1525..82f738e 100644
--- a/arch/alpha/kernel/pci.c
+++ b/arch/alpha/kernel/pci.c
@@ -338,6 +338,8 @@ common_init_pci(void)
 
 		bus = pci_scan_root_bus(NULL, next_busno, alpha_mv.pci_ops,
 					hose, &resources);
+		if (!bus)
+			continue;
 		hose->bus = bus;
 		hose->need_domain_info = need_domain_info;
 		next_busno = bus->busn_res.end + 1;
@@ -353,6 +355,11 @@ common_init_pci(void)
 
 	pci_assign_unassigned_resources();
 	pci_fixup_irqs(alpha_mv.pci_swizzle, alpha_mv.pci_map_irq);
+	for (hose = hose_head; hose; hose = hose->next) {
+		bus = hose->bus;
+		if (bus)
+			pci_bus_add_devices(bus);
+	}
 }
 
 
diff --git a/arch/alpha/kernel/rtc.c b/arch/alpha/kernel/rtc.c
index c8d284d..f535a3f 100644
--- a/arch/alpha/kernel/rtc.c
+++ b/arch/alpha/kernel/rtc.c
@@ -116,7 +116,7 @@ alpha_rtc_set_time(struct device *dev, struct rtc_time *tm)
 }
 
 static int
-alpha_rtc_set_mmss(struct device *dev, unsigned long nowtime)
+alpha_rtc_set_mmss(struct device *dev, time64_t nowtime)
 {
 	int retval = 0;
 	int real_seconds, real_minutes, cmos_minutes;
@@ -211,7 +211,7 @@ alpha_rtc_ioctl(struct device *dev, unsigned int cmd, unsigned long arg)
 static const struct rtc_class_ops alpha_rtc_ops = {
 	.read_time = alpha_rtc_read_time,
 	.set_time = alpha_rtc_set_time,
-	.set_mmss = alpha_rtc_set_mmss,
+	.set_mmss64 = alpha_rtc_set_mmss,
 	.ioctl = alpha_rtc_ioctl,
 };
 
@@ -276,7 +276,7 @@ do_remote_mmss(void *data)
 }
 
 static int
-remote_set_mmss(struct device *dev, unsigned long now)
+remote_set_mmss(struct device *dev, time64_t now)
 {
 	union remote_data x;
 	if (smp_processor_id() != boot_cpuid) {
@@ -290,7 +290,7 @@ remote_set_mmss(struct device *dev, unsigned long now)
 static const struct rtc_class_ops remote_rtc_ops = {
 	.read_time = remote_read_time,
 	.set_time = remote_set_time,
-	.set_mmss = remote_set_mmss,
+	.set_mmss64 = remote_set_mmss,
 	.ioctl = alpha_rtc_ioctl,
 };
 #endif
diff --git a/arch/alpha/kernel/sys_nautilus.c b/arch/alpha/kernel/sys_nautilus.c
index 837c0fa..700686d 100644
--- a/arch/alpha/kernel/sys_nautilus.c
+++ b/arch/alpha/kernel/sys_nautilus.c
@@ -207,6 +207,9 @@ nautilus_init_pci(void)
 
 	/* Scan our single hose.  */
 	bus = pci_scan_bus(0, alpha_mv.pci_ops, hose);
+	if (!bus)
+		return;
+
 	hose->bus = bus;
 	pcibios_claim_one_bus(bus);
 
@@ -253,6 +256,7 @@ nautilus_init_pci(void)
 	   for the root bus, so just clear it. */
 	bus->self = NULL;
 	pci_fixup_irqs(alpha_mv.pci_swizzle, alpha_mv.pci_map_irq);
+	pci_bus_add_devices(bus);
 }
 
 /*
diff --git a/arch/arc/include/asm/processor.h b/arch/arc/include/asm/processor.h
index 4e54729..52312cb 100644
--- a/arch/arc/include/asm/processor.h
+++ b/arch/arc/include/asm/processor.h
@@ -47,9 +47,6 @@ struct thread_struct {
 /* Forward declaration, a strange C thing */
 struct task_struct;
 
-/* Return saved PC of a blocked thread  */
-unsigned long thread_saved_pc(struct task_struct *t);
-
 #define task_pt_regs(p) \
 	((struct pt_regs *)(THREAD_SIZE + (void *)task_stack_page(p)) - 1)
 
@@ -72,18 +69,21 @@ unsigned long thread_saved_pc(struct task_struct *t);
 #define release_segments(mm)        do { } while (0)
 
 #define KSTK_EIP(tsk)   (task_pt_regs(tsk)->ret)
+#define KSTK_ESP(tsk)   (task_pt_regs(tsk)->sp)
 
 /*
  * Where abouts of Task's sp, fp, blink when it was last seen in kernel mode.
  * Look in process.c for details of kernel stack layout
  */
-#define KSTK_ESP(tsk)   (tsk->thread.ksp)
+#define TSK_K_ESP(tsk)		(tsk->thread.ksp)
 
-#define KSTK_REG(tsk, off)	(*((unsigned int *)(KSTK_ESP(tsk) + \
+#define TSK_K_REG(tsk, off)	(*((unsigned int *)(TSK_K_ESP(tsk) + \
 					sizeof(struct callee_regs) + off)))
 
-#define KSTK_BLINK(tsk) KSTK_REG(tsk, 4)
-#define KSTK_FP(tsk)    KSTK_REG(tsk, 0)
+#define TSK_K_BLINK(tsk)	TSK_K_REG(tsk, 4)
+#define TSK_K_FP(tsk)		TSK_K_REG(tsk, 0)
+
+#define thread_saved_pc(tsk)	TSK_K_BLINK(tsk)
 
 extern void start_thread(struct pt_regs * regs, unsigned long pc,
 			 unsigned long usp);
diff --git a/arch/arc/include/asm/stacktrace.h b/arch/arc/include/asm/stacktrace.h
new file mode 100644
index 0000000..b29b606
--- /dev/null
+++ b/arch/arc/include/asm/stacktrace.h
@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2014-15 Synopsys, Inc. (www.synopsys.com)
+ * Copyright (C) 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef __ASM_STACKTRACE_H
+#define __ASM_STACKTRACE_H
+
+#include <linux/sched.h>
+
+/**
+ * arc_unwind_core - Unwind the kernel mode stack for an execution context
+ * @tsk:		NULL for current task, specific task otherwise
+ * @regs:		pt_regs used to seed the unwinder {SP, FP, BLINK, PC}
+ * 			If NULL, use pt_regs of @tsk (if !NULL) otherwise
+ * 			use the current values of {SP, FP, BLINK, PC}
+ * @consumer_fn:	Callback invoked for each frame unwound
+ * 			Returns 0 to continue unwinding, -1 to stop
+ * @arg:		Arg to callback
+ *
+ * Returns the address of first function in stack
+ *
+ * Semantics:
+ *  - synchronous unwinding (e.g. dump_stack): @tsk  NULL, @regs  NULL
+ *  - Asynchronous unwinding of sleeping task: @tsk !NULL, @regs  NULL
+ *  - Asynchronous unwinding of intr/excp etc: @tsk !NULL, @regs !NULL
+ */
+notrace noinline unsigned int arc_unwind_core(
+	struct task_struct *tsk, struct pt_regs *regs,
+	int (*consumer_fn) (unsigned int, void *),
+	void *arg);
+
+#endif /* __ASM_STACKTRACE_H */
diff --git a/arch/arc/kernel/process.c b/arch/arc/kernel/process.c
index fdd8971..98c00a2 100644
--- a/arch/arc/kernel/process.c
+++ b/arch/arc/kernel/process.c
@@ -192,29 +192,6 @@ int dump_fpu(struct pt_regs *regs, elf_fpregset_t *fpu)
 	return 0;
 }
 
-/*
- * API: expected by schedular Code: If thread is sleeping where is that.
- * What is this good for? it will be always the scheduler or ret_from_fork.
- * So we hard code that anyways.
- */
-unsigned long thread_saved_pc(struct task_struct *t)
-{
-	struct pt_regs *regs = task_pt_regs(t);
-	unsigned long blink = 0;
-
-	/*
-	 * If the thread being queried for in not itself calling this, then it
-	 * implies it is not executing, which in turn implies it is sleeping,
-	 * which in turn implies it got switched OUT by the schedular.
-	 * In that case, it's kernel mode blink can reliably retrieved as per
-	 * the picture above (right above pt_regs).
-	 */
-	if (t != current && t->state != TASK_RUNNING)
-		blink = *((unsigned int *)regs - 1);
-
-	return blink;
-}
-
 int elf_check_arch(const struct elf32_hdr *x)
 {
 	unsigned int eflags;
diff --git a/arch/arc/kernel/signal.c b/arch/arc/kernel/signal.c
index 114234e..edda76f 100644
--- a/arch/arc/kernel/signal.c
+++ b/arch/arc/kernel/signal.c
@@ -67,7 +67,7 @@ stash_usr_regs(struct rt_sigframe __user *sf, struct pt_regs *regs,
 	       sigset_t *set)
 {
 	int err;
-	err = __copy_to_user(&(sf->uc.uc_mcontext.regs), regs,
+	err = __copy_to_user(&(sf->uc.uc_mcontext.regs.scratch), regs,
 			     sizeof(sf->uc.uc_mcontext.regs.scratch));
 	err |= __copy_to_user(&sf->uc.uc_sigmask, set, sizeof(sigset_t));
 
@@ -83,7 +83,7 @@ static int restore_usr_regs(struct pt_regs *regs, struct rt_sigframe __user *sf)
 	if (!err)
 		set_current_blocked(&set);
 
-	err |= __copy_from_user(regs, &(sf->uc.uc_mcontext.regs),
+	err |= __copy_from_user(regs, &(sf->uc.uc_mcontext.regs.scratch),
 				sizeof(sf->uc.uc_mcontext.regs.scratch));
 
 	return err;
@@ -131,6 +131,15 @@ SYSCALL_DEFINE0(rt_sigreturn)
 	/* Don't restart from sigreturn */
 	syscall_wont_restart(regs);
 
+	/*
+	 * Ensure that sigreturn always returns to user mode (in case the
+	 * regs saved on user stack got fudged between save and sigreturn)
+	 * Otherwise it is easy to panic the kernel with a custom
+	 * signal handler and/or restorer which clobberes the status32/ret
+	 * to return to a bogus location in kernel mode.
+	 */
+	regs->status32 |= STATUS_U_MASK;
+
 	return regs->r0;
 
 badframe:
@@ -229,8 +238,11 @@ setup_rt_frame(struct ksignal *ksig, sigset_t *set, struct pt_regs *regs)
 
 	/*
 	 * handler returns using sigreturn stub provided already by userpsace
+	 * If not, nuke the process right away
 	 */
-	BUG_ON(!(ksig->ka.sa.sa_flags & SA_RESTORER));
+	if(!(ksig->ka.sa.sa_flags & SA_RESTORER))
+		return 1;
+
 	regs->blink = (unsigned long)ksig->ka.sa.sa_restorer;
 
 	/* User Stack for signal handler will be above the frame just carved */
@@ -296,12 +308,12 @@ static void
 handle_signal(struct ksignal *ksig, struct pt_regs *regs)
 {
 	sigset_t *oldset = sigmask_to_save();
-	int ret;
+	int failed;
 
 	/* Set up the stack frame */
-	ret = setup_rt_frame(ksig, oldset, regs);
+	failed = setup_rt_frame(ksig, oldset, regs);
 
-	signal_setup_done(ret, ksig, 0);
+	signal_setup_done(failed, ksig, 0);
 }
 
 void do_signal(struct pt_regs *regs)
diff --git a/arch/arc/kernel/stacktrace.c b/arch/arc/kernel/stacktrace.c
index 9ce47cf..92320d6 100644
--- a/arch/arc/kernel/stacktrace.c
+++ b/arch/arc/kernel/stacktrace.c
@@ -43,6 +43,10 @@ static void seed_unwind_frame_info(struct task_struct *tsk,
 				   struct pt_regs *regs,
 				   struct unwind_frame_info *frame_info)
 {
+	/*
+	 * synchronous unwinding (e.g. dump_stack)
+	 *  - uses current values of SP and friends
+	 */
 	if (tsk == NULL && regs == NULL) {
 		unsigned long fp, sp, blink, ret;
 		frame_info->task = current;
@@ -61,12 +65,17 @@ static void seed_unwind_frame_info(struct task_struct *tsk,
 		frame_info->regs.r63 = ret;
 		frame_info->call_frame = 0;
 	} else if (regs == NULL) {
+		/*
+		 * Asynchronous unwinding of sleeping task
+		 *  - Gets SP etc from task's pt_regs (saved bottom of kernel
+		 *    mode stack of task)
+		 */
 
 		frame_info->task = tsk;
 
-		frame_info->regs.r27 = KSTK_FP(tsk);
-		frame_info->regs.r28 = KSTK_ESP(tsk);
-		frame_info->regs.r31 = KSTK_BLINK(tsk);
+		frame_info->regs.r27 = TSK_K_FP(tsk);
+		frame_info->regs.r28 = TSK_K_ESP(tsk);
+		frame_info->regs.r31 = TSK_K_BLINK(tsk);
 		frame_info->regs.r63 = (unsigned int)__switch_to;
 
 		/* In the prologue of __switch_to, first FP is saved on stack
@@ -83,6 +92,10 @@ static void seed_unwind_frame_info(struct task_struct *tsk,
 		frame_info->call_frame = 0;
 
 	} else {
+		/*
+		 * Asynchronous unwinding of intr/exception
+		 *  - Just uses the pt_regs passed
+		 */
 		frame_info->task = tsk;
 
 		frame_info->regs.r27 = regs->fp;
@@ -95,7 +108,7 @@ static void seed_unwind_frame_info(struct task_struct *tsk,
 
 #endif
 
-static noinline unsigned int
+notrace noinline unsigned int
 arc_unwind_core(struct task_struct *tsk, struct pt_regs *regs,
 		int (*consumer_fn) (unsigned int, void *), void *arg)
 {
diff --git a/arch/arc/kernel/unaligned.c b/arch/arc/kernel/unaligned.c
index 7ff5b5c..74db59b 100644
--- a/arch/arc/kernel/unaligned.c
+++ b/arch/arc/kernel/unaligned.c
@@ -12,6 +12,7 @@
  */
 
 #include <linux/types.h>
+#include <linux/perf_event.h>
 #include <linux/ptrace.h>
 #include <linux/uaccess.h>
 #include <asm/disasm.h>
@@ -253,6 +254,7 @@ int misaligned_fixup(unsigned long address, struct pt_regs *regs,
 		}
 	}
 
+	perf_sw_event(PERF_COUNT_SW_ALIGNMENT_FAULTS, 1, regs, address);
 	return 0;
 
 fault:
diff --git a/arch/arc/mm/fault.c b/arch/arc/mm/fault.c
index 563cb27..6a2e006 100644
--- a/arch/arc/mm/fault.c
+++ b/arch/arc/mm/fault.c
@@ -14,6 +14,7 @@
 #include <linux/ptrace.h>
 #include <linux/uaccess.h>
 #include <linux/kdebug.h>
+#include <linux/perf_event.h>
 #include <asm/pgalloc.h>
 #include <asm/mmu.h>
 
@@ -139,13 +140,20 @@ good_area:
 			return;
 	}
 
+	perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS, 1, regs, address);
+
 	if (likely(!(fault & VM_FAULT_ERROR))) {
 		if (flags & FAULT_FLAG_ALLOW_RETRY) {
 			/* To avoid updating stats twice for retry case */
-			if (fault & VM_FAULT_MAJOR)
+			if (fault & VM_FAULT_MAJOR) {
 				tsk->maj_flt++;
-			else
+				perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MAJ, 1,
+					      regs, address);
+			} else {
 				tsk->min_flt++;
+				perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MIN, 1,
+					      regs, address);
+			}
 
 			if (fault & VM_FAULT_RETRY) {
 				flags &= ~FAULT_FLAG_ALLOW_RETRY;
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 9f1f09a..cf4c0c9 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -619,6 +619,7 @@ config ARCH_PXA
 	select GENERIC_CLOCKEVENTS
 	select GPIO_PXA
 	select HAVE_IDE
+	select IRQ_DOMAIN
 	select MULTI_IRQ_HANDLER
 	select PLAT_PXA
 	select SPARSE_IRQ
diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index 7f99cd6..eb7bb51 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -150,6 +150,7 @@ machine-$(CONFIG_ARCH_BERLIN)		+= berlin
 machine-$(CONFIG_ARCH_CLPS711X)		+= clps711x
 machine-$(CONFIG_ARCH_CNS3XXX)		+= cns3xxx
 machine-$(CONFIG_ARCH_DAVINCI)		+= davinci
+machine-$(CONFIG_ARCH_DIGICOLOR)	+= digicolor
 machine-$(CONFIG_ARCH_DOVE)		+= dove
 machine-$(CONFIG_ARCH_EBSA110)		+= ebsa110
 machine-$(CONFIG_ARCH_EFM32)		+= efm32
diff --git a/arch/arm/boot/dts/am335x-bone-common.dtsi b/arch/arm/boot/dts/am335x-bone-common.dtsi
index 6cc25ed..c3255e0 100644
--- a/arch/arm/boot/dts/am335x-bone-common.dtsi
+++ b/arch/arm/boot/dts/am335x-bone-common.dtsi
@@ -195,6 +195,7 @@
 
 &usb0 {
 	status = "okay";
+	dr_mode = "peripheral";
 };
 
 &usb1 {
@@ -300,3 +301,11 @@
 	cd-gpios = <&gpio0 6 GPIO_ACTIVE_HIGH>;
 	cd-inverted;
 };
+
+&aes {
+	status = "okay";
+};
+
+&sham {
+	status = "okay";
+};
diff --git a/arch/arm/boot/dts/am335x-bone.dts b/arch/arm/boot/dts/am335x-bone.dts
index 83d40f7..6b849372 100644
--- a/arch/arm/boot/dts/am335x-bone.dts
+++ b/arch/arm/boot/dts/am335x-bone.dts
@@ -24,11 +24,3 @@
 &mmc1 {
 	vmmc-supply = <&ldo3_reg>;
 };
-
-&sham {
-	status = "okay";
-};
-
-&aes {
-	status = "okay";
-};
diff --git a/arch/arm/boot/dts/am335x-lxm.dts b/arch/arm/boot/dts/am335x-lxm.dts
index 7266a00..5c5667a 100644
--- a/arch/arm/boot/dts/am335x-lxm.dts
+++ b/arch/arm/boot/dts/am335x-lxm.dts
@@ -328,6 +328,10 @@
 	dual_emac_res_vlan = <3>;
 };
 
+&phy_sel {
+	rmii-clock-ext;
+};
+
 &mac {
 	pinctrl-names = "default", "sleep";
 	pinctrl-0 = <&cpsw_default>;
diff --git a/arch/arm/boot/dts/am33xx-clocks.dtsi b/arch/arm/boot/dts/am33xx-clocks.dtsi
index 712edce..071b56a 100644
--- a/arch/arm/boot/dts/am33xx-clocks.dtsi
+++ b/arch/arm/boot/dts/am33xx-clocks.dtsi
@@ -99,7 +99,7 @@
 	ehrpwm0_tbclk: ehrpwm0_tbclk@44e10664 {
 		#clock-cells = <0>;
 		compatible = "ti,gate-clock";
-		clocks = <&dpll_per_m2_ck>;
+		clocks = <&l4ls_gclk>;
 		ti,bit-shift = <0>;
 		reg = <0x0664>;
 	};
@@ -107,7 +107,7 @@
 	ehrpwm1_tbclk: ehrpwm1_tbclk@44e10664 {
 		#clock-cells = <0>;
 		compatible = "ti,gate-clock";
-		clocks = <&dpll_per_m2_ck>;
+		clocks = <&l4ls_gclk>;
 		ti,bit-shift = <1>;
 		reg = <0x0664>;
 	};
@@ -115,7 +115,7 @@
 	ehrpwm2_tbclk: ehrpwm2_tbclk@44e10664 {
 		#clock-cells = <0>;
 		compatible = "ti,gate-clock";
-		clocks = <&dpll_per_m2_ck>;
+		clocks = <&l4ls_gclk>;
 		ti,bit-shift = <2>;
 		reg = <0x0664>;
 	};
diff --git a/arch/arm/boot/dts/am4372.dtsi b/arch/arm/boot/dts/am4372.dtsi
index 1943fc3..8a099bc1 100644
--- a/arch/arm/boot/dts/am4372.dtsi
+++ b/arch/arm/boot/dts/am4372.dtsi
@@ -15,7 +15,7 @@
 
 / {
 	compatible = "ti,am4372", "ti,am43";
-	interrupt-parent = <&gic>;
+	interrupt-parent = <&wakeupgen>;
 
 
 	aliases {
@@ -48,6 +48,15 @@
 		#interrupt-cells = <3>;
 		reg = <0x48241000 0x1000>,
 		      <0x48240100 0x0100>;
+		interrupt-parent = <&gic>;
+	};
+
+	wakeupgen: interrupt-controller@48281000 {
+		compatible = "ti,omap4-wugen-mpu";
+		interrupt-controller;
+		#interrupt-cells = <3>;
+		reg = <0x48281000 0x1000>;
+		interrupt-parent = <&gic>;
 	};
 
 	l2-cache-controller@48242000 {
diff --git a/arch/arm/boot/dts/am437x-gp-evm.dts b/arch/arm/boot/dts/am437x-gp-evm.dts
index f84d971..26956cb 100644
--- a/arch/arm/boot/dts/am437x-gp-evm.dts
+++ b/arch/arm/boot/dts/am437x-gp-evm.dts
@@ -352,7 +352,6 @@
 		reg = <0x24>;
 		compatible = "ti,tps65218";
 		interrupts = <GIC_SPI 7 IRQ_TYPE_NONE>; /* NMIn */
-		interrupt-parent = <&gic>;
 		interrupt-controller;
 		#interrupt-cells = <2>;
 
diff --git a/arch/arm/boot/dts/am437x-idk-evm.dts b/arch/arm/boot/dts/am437x-idk-evm.dts
index f9a17e2..0198f5a 100644
--- a/arch/arm/boot/dts/am437x-idk-evm.dts
+++ b/arch/arm/boot/dts/am437x-idk-evm.dts
@@ -133,20 +133,6 @@
 		>;
 	};
 
-	i2c1_pins_default: i2c1_pins_default {
-		pinctrl-single,pins = <
-			0x15c (PIN_INPUT | SLEWCTRL_FAST | MUX_MODE2) /* spi0_cs0.i2c1_scl */
-			0x158 (PIN_INPUT | SLEWCTRL_FAST | MUX_MODE2) /* spi0_d1.i2c1_sda */
-		>;
-	};
-
-	i2c1_pins_sleep: i2c1_pins_sleep {
-		pinctrl-single,pins = <
-			0x15c (PIN_INPUT_PULLDOWN | MUX_MODE7) /* spi0_cs0.i2c1_scl */
-			0x158 (PIN_INPUT_PULLDOWN | MUX_MODE7) /* spi0_d1.i2c1_sda */
-		>;
-	};
-
 	mmc1_pins_default: pinmux_mmc1_pins_default {
 		pinctrl-single,pins = <
 			0x100 (PIN_INPUT | MUX_MODE0) /* mmc0_clk.mmc0_clk */
@@ -254,7 +240,7 @@
 	status = "okay";
 	pinctrl-names = "default", "sleep";
 	pinctrl-0 = <&i2c0_pins_default>;
-	pinctrl-1 = <&i2c0_pins_default>;
+	pinctrl-1 = <&i2c0_pins_sleep>;
 	clock-frequency = <400000>;
 
 	at24@50 {
@@ -262,17 +248,10 @@
 		pagesize = <64>;
 		reg = <0x50>;
 	};
-};
-
-&i2c1 {
-	status = "okay";
-	pinctrl-names = "default", "sleep";
-	pinctrl-0 = <&i2c1_pins_default>;
-	pinctrl-1 = <&i2c1_pins_default>;
-	clock-frequency = <400000>;
 
 	tps: tps62362@60 {
 		compatible = "ti,tps62362";
+		reg = <0x60>;
 		regulator-name = "VDD_MPU";
 		regulator-min-microvolt = <950000>;
 		regulator-max-microvolt = <1330000>;
diff --git a/arch/arm/boot/dts/am437x-sk-evm.dts b/arch/arm/boot/dts/am437x-sk-evm.dts
index 832d243..8ae29c9 100644
--- a/arch/arm/boot/dts/am437x-sk-evm.dts
+++ b/arch/arm/boot/dts/am437x-sk-evm.dts
@@ -392,7 +392,6 @@
 	tps@24 {
 		compatible = "ti,tps65218";
 		reg = <0x24>;
-		interrupt-parent = <&gic>;
 		interrupts = <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>;
 		interrupt-controller;
 		#interrupt-cells = <2>;
diff --git a/arch/arm/boot/dts/am43x-epos-evm.dts b/arch/arm/boot/dts/am43x-epos-evm.dts
index 257c099..1d71091 100644
--- a/arch/arm/boot/dts/am43x-epos-evm.dts
+++ b/arch/arm/boot/dts/am43x-epos-evm.dts
@@ -369,7 +369,6 @@
 		reg = <0x24>;
 		compatible = "ti,tps65218";
 		interrupts = <GIC_SPI 7 IRQ_TYPE_NONE>; /* NMIn */
-		interrupt-parent = <&gic>;
 		interrupt-controller;
 		#interrupt-cells = <2>;
 
diff --git a/arch/arm/boot/dts/am43xx-clocks.dtsi b/arch/arm/boot/dts/am43xx-clocks.dtsi
index c7dc9da..cfb4968 100644
--- a/arch/arm/boot/dts/am43xx-clocks.dtsi
+++ b/arch/arm/boot/dts/am43xx-clocks.dtsi
@@ -107,7 +107,7 @@
 	ehrpwm0_tbclk: ehrpwm0_tbclk {
 		#clock-cells = <0>;
 		compatible = "ti,gate-clock";
-		clocks = <&dpll_per_m2_ck>;
+		clocks = <&l4ls_gclk>;
 		ti,bit-shift = <0>;
 		reg = <0x0664>;
 	};
@@ -115,7 +115,7 @@
 	ehrpwm1_tbclk: ehrpwm1_tbclk {
 		#clock-cells = <0>;
 		compatible = "ti,gate-clock";
-		clocks = <&dpll_per_m2_ck>;
+		clocks = <&l4ls_gclk>;
 		ti,bit-shift = <1>;
 		reg = <0x0664>;
 	};
@@ -123,7 +123,7 @@
 	ehrpwm2_tbclk: ehrpwm2_tbclk {
 		#clock-cells = <0>;
 		compatible = "ti,gate-clock";
-		clocks = <&dpll_per_m2_ck>;
+		clocks = <&l4ls_gclk>;
 		ti,bit-shift = <2>;
 		reg = <0x0664>;
 	};
@@ -131,7 +131,7 @@
 	ehrpwm3_tbclk: ehrpwm3_tbclk {
 		#clock-cells = <0>;
 		compatible = "ti,gate-clock";
-		clocks = <&dpll_per_m2_ck>;
+		clocks = <&l4ls_gclk>;
 		ti,bit-shift = <4>;
 		reg = <0x0664>;
 	};
@@ -139,7 +139,7 @@
 	ehrpwm4_tbclk: ehrpwm4_tbclk {
 		#clock-cells = <0>;
 		compatible = "ti,gate-clock";
-		clocks = <&dpll_per_m2_ck>;
+		clocks = <&l4ls_gclk>;
 		ti,bit-shift = <5>;
 		reg = <0x0664>;
 	};
@@ -147,7 +147,7 @@
 	ehrpwm5_tbclk: ehrpwm5_tbclk {
 		#clock-cells = <0>;
 		compatible = "ti,gate-clock";
-		clocks = <&dpll_per_m2_ck>;
+		clocks = <&l4ls_gclk>;
 		ti,bit-shift = <6>;
 		reg = <0x0664>;
 	};
diff --git a/arch/arm/boot/dts/am57xx-beagle-x15.dts b/arch/arm/boot/dts/am57xx-beagle-x15.dts
index 03750af..bd48dba 100644
--- a/arch/arm/boot/dts/am57xx-beagle-x15.dts
+++ b/arch/arm/boot/dts/am57xx-beagle-x15.dts
@@ -454,7 +454,6 @@
 	mcp_rtc: rtc@6f {
 		compatible = "microchip,mcp7941x";
 		reg = <0x6f>;
-		interrupt-parent = <&gic>;
 		interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_LOW>;  /* IRQ_SYS_1N */
 
 		pinctrl-names = "default";
@@ -477,7 +476,7 @@
 
 &uart3 {
 	status = "okay";
-	interrupts-extended = <&gic GIC_SPI 69 IRQ_TYPE_LEVEL_HIGH>,
+	interrupts-extended = <&crossbar_mpu GIC_SPI 69 IRQ_TYPE_LEVEL_HIGH>,
 			      <&dra7_pmx_core 0x248>;
 
 	pinctrl-names = "default";
@@ -549,14 +548,6 @@
 	pinctrl-0 = <&usb1_pins>;
 };
 
-&omap_dwc3_1 {
-	extcon = <&extcon_usb1>;
-};
-
-&omap_dwc3_2 {
-	extcon = <&extcon_usb2>;
-};
-
 &usb2 {
 	dr_mode = "peripheral";
 };
diff --git a/arch/arm/boot/dts/at91sam9260.dtsi b/arch/arm/boot/dts/at91sam9260.dtsi
index fff0ee6..e7f0a4a 100644
--- a/arch/arm/boot/dts/at91sam9260.dtsi
+++ b/arch/arm/boot/dts/at91sam9260.dtsi
@@ -494,12 +494,12 @@
 
 					pinctrl_usart3_rts: usart3_rts-0 {
 						atmel,pins =
-							<AT91_PIOB 8 AT91_PERIPH_B AT91_PINCTRL_NONE>;	/* PC8 periph B */
+							<AT91_PIOC 8 AT91_PERIPH_B AT91_PINCTRL_NONE>;
 					};
 
 					pinctrl_usart3_cts: usart3_cts-0 {
 						atmel,pins =
-							<AT91_PIOB 10 AT91_PERIPH_B AT91_PINCTRL_NONE>;	/* PC10 periph B */
+							<AT91_PIOC 10 AT91_PERIPH_B AT91_PINCTRL_NONE>;
 					};
 				};
 
@@ -853,7 +853,7 @@
 			};
 
 			usb1: gadget@fffa4000 {
-				compatible = "atmel,at91rm9200-udc";
+				compatible = "atmel,at91sam9260-udc";
 				reg = <0xfffa4000 0x4000>;
 				interrupts = <10 IRQ_TYPE_LEVEL_HIGH 2>;
 				clocks = <&udc_clk>, <&udpck>;
@@ -976,7 +976,6 @@
 				atmel,watchdog-type = "hardware";
 				atmel,reset-type = "all";
 				atmel,dbg-halt;
-				atmel,idle-halt;
 				status = "disabled";
 			};
 
diff --git a/arch/arm/boot/dts/at91sam9261.dtsi b/arch/arm/boot/dts/at91sam9261.dtsi
index e247b0b..d55fdf2 100644
--- a/arch/arm/boot/dts/at91sam9261.dtsi
+++ b/arch/arm/boot/dts/at91sam9261.dtsi
@@ -124,11 +124,12 @@
 			};
 
 			usb1: gadget@fffa4000 {
-				compatible = "atmel,at91rm9200-udc";
+				compatible = "atmel,at91sam9261-udc";
 				reg = <0xfffa4000 0x4000>;
 				interrupts = <10 IRQ_TYPE_LEVEL_HIGH 2>;
-				clocks = <&usb>, <&udc_clk>, <&udpck>;
-				clock-names = "usb_clk", "udc_clk", "udpck";
+				clocks = <&udc_clk>, <&udpck>;
+				clock-names = "pclk", "hclk";
+				atmel,matrix = <&matrix>;
 				status = "disabled";
 			};
 
@@ -262,7 +263,7 @@
 			};
 
 			matrix: matrix@ffffee00 {
-				compatible = "atmel,at91sam9260-bus-matrix";
+				compatible = "atmel,at91sam9260-bus-matrix", "syscon";
 				reg = <0xffffee00 0x200>;
 			};
 
diff --git a/arch/arm/boot/dts/at91sam9263.dtsi b/arch/arm/boot/dts/at91sam9263.dtsi
index 1f67bb4..fce301c 100644
--- a/arch/arm/boot/dts/at91sam9263.dtsi
+++ b/arch/arm/boot/dts/at91sam9263.dtsi
@@ -69,7 +69,7 @@
 
 	sram1: sram@00500000 {
 		compatible = "mmio-sram";
-		reg = <0x00300000 0x4000>;
+		reg = <0x00500000 0x4000>;
 	};
 
 	ahb {
@@ -856,7 +856,7 @@
 			};
 
 			usb1: gadget@fff78000 {
-				compatible = "atmel,at91rm9200-udc";
+				compatible = "atmel,at91sam9263-udc";
 				reg = <0xfff78000 0x4000>;
 				interrupts = <24 IRQ_TYPE_LEVEL_HIGH 2>;
 				clocks = <&udc_clk>, <&udpck>;
@@ -905,7 +905,6 @@
 				atmel,watchdog-type = "hardware";
 				atmel,reset-type = "all";
 				atmel,dbg-halt;
-				atmel,idle-halt;
 				status = "disabled";
 			};
 
diff --git a/arch/arm/boot/dts/at91sam9g45.dtsi b/arch/arm/boot/dts/at91sam9g45.dtsi
index ee80aa9..488af63 100644
--- a/arch/arm/boot/dts/at91sam9g45.dtsi
+++ b/arch/arm/boot/dts/at91sam9g45.dtsi
@@ -1116,7 +1116,6 @@
 				atmel,watchdog-type = "hardware";
 				atmel,reset-type = "all";
 				atmel,dbg-halt;
-				atmel,idle-halt;
 				status = "disabled";
 			};
 
@@ -1301,7 +1300,7 @@
 			compatible = "atmel,at91sam9g45-ehci", "usb-ehci";
 			reg = <0x00800000 0x100000>;
 			interrupts = <22 IRQ_TYPE_LEVEL_HIGH 2>;
-			clocks = <&usb>, <&uhphs_clk>, <&uhphs_clk>, <&uhpck>;
+			clocks = <&utmi>, <&uhphs_clk>, <&uhphs_clk>, <&uhpck>;
 			clock-names = "usb_clk", "ehci_clk", "hclk", "uhpck";
 			status = "disabled";
 		};
diff --git a/arch/arm/boot/dts/at91sam9n12.dtsi b/arch/arm/boot/dts/at91sam9n12.dtsi
index c2666a7..0c53a37 100644
--- a/arch/arm/boot/dts/at91sam9n12.dtsi
+++ b/arch/arm/boot/dts/at91sam9n12.dtsi
@@ -894,7 +894,6 @@
 				atmel,watchdog-type = "hardware";
 				atmel,reset-type = "all";
 				atmel,dbg-halt;
-				atmel,idle-halt;
 				status = "disabled";
 			};
 
diff --git a/arch/arm/boot/dts/at91sam9x5.dtsi b/arch/arm/boot/dts/at91sam9x5.dtsi
index 818dabd..d221179 100644
--- a/arch/arm/boot/dts/at91sam9x5.dtsi
+++ b/arch/arm/boot/dts/at91sam9x5.dtsi
@@ -1066,7 +1066,7 @@
 				reg = <0x00500000 0x80000
 				       0xf803c000 0x400>;
 				interrupts = <23 IRQ_TYPE_LEVEL_HIGH 0>;
-				clocks = <&usb>, <&udphs_clk>;
+				clocks = <&utmi>, <&udphs_clk>;
 				clock-names = "hclk", "pclk";
 				status = "disabled";
 
@@ -1130,7 +1130,6 @@
 				atmel,watchdog-type = "hardware";
 				atmel,reset-type = "all";
 				atmel,dbg-halt;
-				atmel,idle-halt;
 				status = "disabled";
 			};
 
@@ -1186,7 +1185,7 @@
 			compatible = "atmel,at91sam9g45-ehci", "usb-ehci";
 			reg = <0x00700000 0x100000>;
 			interrupts = <22 IRQ_TYPE_LEVEL_HIGH 2>;
-			clocks = <&usb>, <&uhphs_clk>, <&uhpck>;
+			clocks = <&utmi>, <&uhphs_clk>, <&uhpck>;
 			clock-names = "usb_clk", "ehci_clk", "uhpck";
 			status = "disabled";
 		};
diff --git a/arch/arm/boot/dts/dm8168-evm.dts b/arch/arm/boot/dts/dm8168-evm.dts
index 857d028..afe678f 100644
--- a/arch/arm/boot/dts/dm8168-evm.dts
+++ b/arch/arm/boot/dts/dm8168-evm.dts
@@ -35,6 +35,32 @@
 			DM816X_IOPAD(0x0aac, PIN_INPUT | MUX_MODE0)	/* SPI_D1 */
 		>;
 	};
+
+	mmc_pins: pinmux_mmc_pins {
+		pinctrl-single,pins = <
+			DM816X_IOPAD(0x0a70, MUX_MODE0)			/* SD_POW */
+			DM816X_IOPAD(0x0a74, MUX_MODE0)			/* SD_CLK */
+			DM816X_IOPAD(0x0a78, MUX_MODE0)			/* SD_CMD */
+			DM816X_IOPAD(0x0a7C, MUX_MODE0)			/* SD_DAT0 */
+			DM816X_IOPAD(0x0a80, MUX_MODE0)			/* SD_DAT1 */
+			DM816X_IOPAD(0x0a84, MUX_MODE0)			/* SD_DAT2 */
+			DM816X_IOPAD(0x0a88, MUX_MODE0)			/* SD_DAT2 */
+			DM816X_IOPAD(0x0a8c, MUX_MODE2)			/* GP1[7] */
+			DM816X_IOPAD(0x0a90, MUX_MODE2)			/* GP1[8] */
+		>;
+	};
+
+	usb0_pins: pinmux_usb0_pins {
+		pinctrl-single,pins = <
+			DM816X_IOPAD(0x0d00, MUX_MODE0)			/* USB0_DRVVBUS */
+		>;
+	};
+
+	usb1_pins: pinmux_usb0_pins {
+		pinctrl-single,pins = <
+			DM816X_IOPAD(0x0d04, MUX_MODE0)			/* USB1_DRVVBUS */
+		>;
+	};
 };
 
 &i2c1 {
@@ -125,5 +151,23 @@
 };
 
 &mmc1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&mmc_pins>;
 	vmmc-supply = <&vmmcsd_fixed>;
+	bus-width = <4>;
+	cd-gpios = <&gpio2 7 GPIO_ACTIVE_LOW>;
+	wp-gpios = <&gpio2 8 GPIO_ACTIVE_LOW>;
+};
+
+/* At least dm8168-evm rev c won't support multipoint, later may */
+&usb0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&usb0_pins>;
+	mentor,multipoint = <0>;
+};
+
+&usb1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&usb1_pins>;
+	mentor,multipoint = <0>;
 };
diff --git a/arch/arm/boot/dts/dm816x.dtsi b/arch/arm/boot/dts/dm816x.dtsi
index d98d0f7..f35715b 100644
--- a/arch/arm/boot/dts/dm816x.dtsi
+++ b/arch/arm/boot/dts/dm816x.dtsi
@@ -97,10 +97,31 @@
 
 			/* Device Configuration Registers */
 			scm_conf: syscon@600 {
-				compatible = "syscon";
+				compatible = "syscon", "simple-bus";
 				reg = <0x600 0x110>;
 				#address-cells = <1>;
 				#size-cells = <1>;
+				ranges = <0 0x600 0x110>;
+
+				usb_phy0: usb-phy@20 {
+					compatible = "ti,dm8168-usb-phy";
+					reg = <0x20 0x8>;
+					reg-names = "phy";
+					clocks = <&main_fapll 6>;
+					clock-names = "refclk";
+					#phy-cells = <0>;
+					syscon = <&scm_conf>;
+				};
+
+				usb_phy1: usb-phy@28 {
+					compatible = "ti,dm8168-usb-phy";
+					reg = <0x28 0x8>;
+					reg-names = "phy";
+					clocks = <&main_fapll 6>;
+					clock-names = "refclk";
+					#phy-cells = <0>;
+					syscon = <&scm_conf>;
+				};
 			};
 
 			scrm_clocks: clocks {
@@ -129,17 +150,27 @@
 		};
 
 		gpio1: gpio@48032000 {
-			compatible = "ti,omap3-gpio";
+			compatible = "ti,omap4-gpio";
 			ti,hwmods = "gpio1";
+			ti,gpio-always-on;
 			reg = <0x48032000 0x1000>;
-			interrupts = <97>;
+			interrupts = <96>;
+			gpio-controller;
+			#gpio-cells = <2>;
+			interrupt-controller;
+			#interrupt-cells = <2>;
 		};
 
 		gpio2: gpio@4804c000 {
-			compatible = "ti,omap3-gpio";
+			compatible = "ti,omap4-gpio";
 			ti,hwmods = "gpio2";
+			ti,gpio-always-on;
 			reg = <0x4804c000 0x1000>;
-			interrupts = <99>;
+			interrupts = <98>;
+			gpio-controller;
+			#gpio-cells = <2>;
+			interrupt-controller;
+			#interrupt-cells = <2>;
 		};
 
 		gpmc: gpmc@50000000 {
@@ -357,7 +388,10 @@
 				reg-names = "mc", "control";
 				interrupts = <18>;
 				interrupt-names = "mc";
-				dr_mode = "otg";
+				dr_mode = "host";
+				interface-type = <0>;
+				phys = <&usb_phy0>;
+				phy-names = "usb2-phy";
 				mentor,multipoint = <1>;
 				mentor,num-eps = <16>;
 				mentor,ram-bits = <12>;
@@ -366,13 +400,15 @@
 
 			usb1: usb@47401800 {
 				compatible = "ti,musb-am33xx";
-				status = "disabled";
 				reg = <0x47401c00 0x400
 				       0x47401800 0x200>;
 				reg-names = "mc", "control";
 				interrupts = <19>;
 				interrupt-names = "mc";
-				dr_mode = "otg";
+				dr_mode = "host";
+				interface-type = <0>;
+				phys = <&usb_phy1>;
+				phy-names = "usb2-phy";
 				mentor,multipoint = <1>;
 				mentor,num-eps = <16>;
 				mentor,ram-bits = <12>;
diff --git a/arch/arm/boot/dts/dra7-evm.dts b/arch/arm/boot/dts/dra7-evm.dts
index 746cddb..b1bd06c 100644
--- a/arch/arm/boot/dts/dra7-evm.dts
+++ b/arch/arm/boot/dts/dra7-evm.dts
@@ -263,17 +263,15 @@
 
 	dcan1_pins_default: dcan1_pins_default {
 		pinctrl-single,pins = <
-			0x3d0   (PIN_OUTPUT | MUX_MODE0) /* dcan1_tx */
-			0x3d4   (MUX_MODE15)		/* dcan1_rx.off */
-			0x418   (PULL_DIS | MUX_MODE1) /* wakeup0.dcan1_rx */
+			0x3d0   (PIN_OUTPUT_PULLUP | MUX_MODE0) /* dcan1_tx */
+			0x418   (PULL_UP | MUX_MODE1) /* wakeup0.dcan1_rx */
 		>;
 	};
 
 	dcan1_pins_sleep: dcan1_pins_sleep {
 		pinctrl-single,pins = <
-			0x3d0   (MUX_MODE15)	/* dcan1_tx.off */
-			0x3d4   (MUX_MODE15)	/* dcan1_rx.off */
-			0x418   (MUX_MODE15)	/* wakeup0.off */
+			0x3d0   (MUX_MODE15 | PULL_UP)	/* dcan1_tx.off */
+			0x418   (MUX_MODE15 | PULL_UP)	/* wakeup0.off */
 		>;
 	};
 };
@@ -446,7 +444,7 @@
 	status = "okay";
 	pinctrl-names = "default";
 	pinctrl-0 = <&uart1_pins>;
-	interrupts-extended = <&gic GIC_SPI 67 IRQ_TYPE_LEVEL_HIGH>,
+	interrupts-extended = <&crossbar_mpu GIC_SPI 67 IRQ_TYPE_LEVEL_HIGH>,
 			      <&dra7_pmx_core 0x3e0>;
 };
 
@@ -543,14 +541,6 @@
 	};
 };
 
-&omap_dwc3_1 {
-	extcon = <&extcon_usb1>;
-};
-
-&omap_dwc3_2 {
-	extcon = <&extcon_usb2>;
-};
-
 &usb1 {
 	dr_mode = "peripheral";
 	pinctrl-names = "default";
diff --git a/arch/arm/boot/dts/dra7.dtsi b/arch/arm/boot/dts/dra7.dtsi
index 5827fed..a0afce7 100644
--- a/arch/arm/boot/dts/dra7.dtsi
+++ b/arch/arm/boot/dts/dra7.dtsi
@@ -13,14 +13,13 @@
 #include "skeleton.dtsi"
 
 #define MAX_SOURCES 400
-#define DIRECT_IRQ(irq) (MAX_SOURCES + irq)
 
 / {
 	#address-cells = <1>;
 	#size-cells = <1>;
 
 	compatible = "ti,dra7xx";
-	interrupt-parent = <&gic>;
+	interrupt-parent = <&crossbar_mpu>;
 
 	aliases {
 		i2c0 = &i2c1;
@@ -50,18 +49,27 @@
 			     <GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>,
 			     <GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>,
 			     <GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>;
+		interrupt-parent = <&gic>;
 	};
 
 	gic: interrupt-controller@48211000 {
 		compatible = "arm,cortex-a15-gic";
 		interrupt-controller;
 		#interrupt-cells = <3>;
-		arm,routable-irqs = <192>;
 		reg = <0x48211000 0x1000>,
 		      <0x48212000 0x1000>,
 		      <0x48214000 0x2000>,
 		      <0x48216000 0x2000>;
 		interrupts = <GIC_PPI 9 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_HIGH)>;
+		interrupt-parent = <&gic>;
+	};
+
+	wakeupgen: interrupt-controller@48281000 {
+		compatible = "ti,omap5-wugen-mpu", "ti,omap4-wugen-mpu";
+		interrupt-controller;
+		#interrupt-cells = <3>;
+		reg = <0x48281000 0x1000>;
+		interrupt-parent = <&gic>;
 	};
 
 	/*
@@ -91,8 +99,8 @@
 		ti,hwmods = "l3_main_1", "l3_main_2";
 		reg = <0x44000000 0x1000000>,
 		      <0x45000000 0x1000>;
-		interrupts = <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>,
-			     <GIC_SPI DIRECT_IRQ(10) IRQ_TYPE_LEVEL_HIGH>;
+		interrupts-extended = <&crossbar_mpu GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>,
+				      <&wakeupgen GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>;
 
 		prm: prm@4ae06000 {
 			compatible = "ti,dra7-prm";
@@ -249,8 +257,8 @@
 				     <GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>,
 				     <GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>;
 			#dma-cells = <1>;
-			#dma-channels = <32>;
-			#dma-requests = <127>;
+			dma-channels = <32>;
+			dma-requests = <127>;
 		};
 
 		gpio1: gpio@4ae10000 {
@@ -344,7 +352,7 @@
 		uart1: serial@4806a000 {
 			compatible = "ti,omap4-uart";
 			reg = <0x4806a000 0x100>;
-			interrupts-extended = <&gic GIC_SPI 67 IRQ_TYPE_LEVEL_HIGH>;
+			interrupts-extended = <&crossbar_mpu GIC_SPI 67 IRQ_TYPE_LEVEL_HIGH>;
 			ti,hwmods = "uart1";
 			clock-frequency = <48000000>;
 			status = "disabled";
@@ -355,7 +363,7 @@
 		uart2: serial@4806c000 {
 			compatible = "ti,omap4-uart";
 			reg = <0x4806c000 0x100>;
-			interrupts-extended = <&gic GIC_SPI 68 IRQ_TYPE_LEVEL_HIGH>;
+			interrupts = <GIC_SPI 68 IRQ_TYPE_LEVEL_HIGH>;
 			ti,hwmods = "uart2";
 			clock-frequency = <48000000>;
 			status = "disabled";
@@ -366,7 +374,7 @@
 		uart3: serial@48020000 {
 			compatible = "ti,omap4-uart";
 			reg = <0x48020000 0x100>;
-			interrupts-extended = <&gic GIC_SPI 69 IRQ_TYPE_LEVEL_HIGH>;
+			interrupts = <GIC_SPI 69 IRQ_TYPE_LEVEL_HIGH>;
 			ti,hwmods = "uart3";
 			clock-frequency = <48000000>;
 			status = "disabled";
@@ -377,7 +385,7 @@
 		uart4: serial@4806e000 {
 			compatible = "ti,omap4-uart";
 			reg = <0x4806e000 0x100>;
-			interrupts-extended = <&gic GIC_SPI 65 IRQ_TYPE_LEVEL_HIGH>;
+			interrupts = <GIC_SPI 65 IRQ_TYPE_LEVEL_HIGH>;
 			ti,hwmods = "uart4";
 			clock-frequency = <48000000>;
                         status = "disabled";
@@ -388,7 +396,7 @@
 		uart5: serial@48066000 {
 			compatible = "ti,omap4-uart";
 			reg = <0x48066000 0x100>;
-			interrupts-extended = <&gic GIC_SPI 100 IRQ_TYPE_LEVEL_HIGH>;
+			interrupts = <GIC_SPI 100 IRQ_TYPE_LEVEL_HIGH>;
 			ti,hwmods = "uart5";
 			clock-frequency = <48000000>;
 			status = "disabled";
@@ -399,7 +407,7 @@
 		uart6: serial@48068000 {
 			compatible = "ti,omap4-uart";
 			reg = <0x48068000 0x100>;
-			interrupts-extended = <&gic GIC_SPI 101 IRQ_TYPE_LEVEL_HIGH>;
+			interrupts = <GIC_SPI 101 IRQ_TYPE_LEVEL_HIGH>;
 			ti,hwmods = "uart6";
 			clock-frequency = <48000000>;
 			status = "disabled";
@@ -410,7 +418,7 @@
 		uart7: serial@48420000 {
 			compatible = "ti,omap4-uart";
 			reg = <0x48420000 0x100>;
-			interrupts-extended = <&gic GIC_SPI 218 IRQ_TYPE_LEVEL_HIGH>;
+			interrupts = <GIC_SPI 218 IRQ_TYPE_LEVEL_HIGH>;
 			ti,hwmods = "uart7";
 			clock-frequency = <48000000>;
 			status = "disabled";
@@ -419,7 +427,7 @@
 		uart8: serial@48422000 {
 			compatible = "ti,omap4-uart";
 			reg = <0x48422000 0x100>;
-			interrupts-extended = <&gic GIC_SPI 219 IRQ_TYPE_LEVEL_HIGH>;
+			interrupts = <GIC_SPI 219 IRQ_TYPE_LEVEL_HIGH>;
 			ti,hwmods = "uart8";
 			clock-frequency = <48000000>;
 			status = "disabled";
@@ -428,7 +436,7 @@
 		uart9: serial@48424000 {
 			compatible = "ti,omap4-uart";
 			reg = <0x48424000 0x100>;
-			interrupts-extended = <&gic GIC_SPI 220 IRQ_TYPE_LEVEL_HIGH>;
+			interrupts = <GIC_SPI 220 IRQ_TYPE_LEVEL_HIGH>;
 			ti,hwmods = "uart9";
 			clock-frequency = <48000000>;
 			status = "disabled";
@@ -437,7 +445,7 @@
 		uart10: serial@4ae2b000 {
 			compatible = "ti,omap4-uart";
 			reg = <0x4ae2b000 0x100>;
-			interrupts-extended = <&gic GIC_SPI 221 IRQ_TYPE_LEVEL_HIGH>;
+			interrupts = <GIC_SPI 221 IRQ_TYPE_LEVEL_HIGH>;
 			ti,hwmods = "uart10";
 			clock-frequency = <48000000>;
 			status = "disabled";
@@ -1090,8 +1098,8 @@
 				      <0x4A096800 0x40>; /* pll_ctrl */
 				reg-names = "phy_rx", "phy_tx", "pll_ctrl";
 				ctrl-module = <&omap_control_sata>;
-				clocks = <&sys_clkin1>;
-				clock-names = "sysclk";
+				clocks = <&sys_clkin1>, <&sata_ref_clk>;
+				clock-names = "sysclk", "refclk";
 				#phy-cells = <0>;
 			};
 
@@ -1111,7 +1119,6 @@
 					      "wkupclk", "refclk",
 					      "div-clk", "phy-div";
 				#phy-cells = <0>;
-				ti,hwmods = "pcie1-phy";
 			};
 
 			pcie2_phy: pciephy@4a095000 {
@@ -1130,7 +1137,6 @@
 					      "wkupclk", "refclk",
 					      "div-clk", "phy-div";
 				#phy-cells = <0>;
-				ti,hwmods = "pcie2-phy";
 				status = "disabled";
 			};
 		};
@@ -1337,9 +1343,12 @@
 			status = "disabled";
 		};
 
-		crossbar_mpu: crossbar@4a020000 {
+		crossbar_mpu: crossbar@4a002a48 {
 			compatible = "ti,irq-crossbar";
 			reg = <0x4a002a48 0x130>;
+			interrupt-controller;
+			interrupt-parent = <&wakeupgen>;
+			#interrupt-cells = <3>;
 			ti,max-irqs = <160>;
 			ti,max-crossbar-sources = <MAX_SOURCES>;
 			ti,reg-size = <2>;
diff --git a/arch/arm/boot/dts/dra72-evm.dts b/arch/arm/boot/dts/dra72-evm.dts
index 4d87117..daf2811 100644
--- a/arch/arm/boot/dts/dra72-evm.dts
+++ b/arch/arm/boot/dts/dra72-evm.dts
@@ -119,17 +119,15 @@
 
 	dcan1_pins_default: dcan1_pins_default {
 		pinctrl-single,pins = <
-			0x3d0   (PIN_OUTPUT | MUX_MODE0) /* dcan1_tx */
-			0x3d4   (MUX_MODE15)		/* dcan1_rx.off */
-			0x418   (PULL_DIS | MUX_MODE1) /* wakeup0.dcan1_rx */
+			0x3d0   (PIN_OUTPUT_PULLUP | MUX_MODE0) /* dcan1_tx */
+			0x418   (PULL_UP | MUX_MODE1)	/* wakeup0.dcan1_rx */
 		>;
 	};
 
 	dcan1_pins_sleep: dcan1_pins_sleep {
 		pinctrl-single,pins = <
-			0x3d0   (MUX_MODE15)	/* dcan1_tx.off */
-			0x3d4   (MUX_MODE15)	/* dcan1_rx.off */
-			0x418   (MUX_MODE15)	/* wakeup0.off */
+			0x3d0   (MUX_MODE15 | PULL_UP)	/* dcan1_tx.off */
+			0x418   (MUX_MODE15 | PULL_UP)	/* wakeup0.off */
 		>;
 	};
 
@@ -160,7 +158,6 @@
 		pinctrl-0 = <&tps65917_pins_default>;
 
 		interrupts = <GIC_SPI 2 IRQ_TYPE_NONE>;  /* IRQ_SYS_1N */
-		interrupt-parent = <&gic>;
 		interrupt-controller;
 		#interrupt-cells = <2>;
 
@@ -380,14 +377,6 @@
 	phy-supply = <&ldo4_reg>;
 };
 
-&omap_dwc3_1 {
-	extcon = <&extcon_usb1>;
-};
-
-&omap_dwc3_2 {
-	extcon = <&extcon_usb2>;
-};
-
 &usb1 {
 	dr_mode = "peripheral";
 	pinctrl-names = "default";
diff --git a/arch/arm/boot/dts/dra72x.dtsi b/arch/arm/boot/dts/dra72x.dtsi
index e5a3d23..f7fb0d0 100644
--- a/arch/arm/boot/dts/dra72x.dtsi
+++ b/arch/arm/boot/dts/dra72x.dtsi
@@ -25,6 +25,7 @@
 
 	pmu {
 		compatible = "arm,cortex-a15-pmu";
-		interrupts = <GIC_SPI DIRECT_IRQ(131) IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-parent = <&wakeupgen>;
+		interrupts = <GIC_SPI 131 IRQ_TYPE_LEVEL_HIGH>;
 	};
 };
diff --git a/arch/arm/boot/dts/dra74x.dtsi b/arch/arm/boot/dts/dra74x.dtsi
index 10173fa..00eeed7 100644
--- a/arch/arm/boot/dts/dra74x.dtsi
+++ b/arch/arm/boot/dts/dra74x.dtsi
@@ -41,8 +41,9 @@
 
 	pmu {
 		compatible = "arm,cortex-a15-pmu";
-		interrupts = <GIC_SPI DIRECT_IRQ(131) IRQ_TYPE_LEVEL_HIGH>,
-			     <GIC_SPI DIRECT_IRQ(132) IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-parent = <&wakeupgen>;
+		interrupts = <GIC_SPI 131 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 132 IRQ_TYPE_LEVEL_HIGH>;
 	};
 
 	ocp {
diff --git a/arch/arm/boot/dts/dra7xx-clocks.dtsi b/arch/arm/boot/dts/dra7xx-clocks.dtsi
index 4bdcbd6..99b09a4 100644
--- a/arch/arm/boot/dts/dra7xx-clocks.dtsi
+++ b/arch/arm/boot/dts/dra7xx-clocks.dtsi
@@ -243,10 +243,18 @@
 		ti,invert-autoidle-bit;
 	};
 
+	dpll_core_byp_mux: dpll_core_byp_mux {
+		#clock-cells = <0>;
+		compatible = "ti,mux-clock";
+		clocks = <&sys_clkin1>, <&dpll_abe_m3x2_ck>;
+		ti,bit-shift = <23>;
+		reg = <0x012c>;
+	};
+
 	dpll_core_ck: dpll_core_ck {
 		#clock-cells = <0>;
 		compatible = "ti,omap4-dpll-core-clock";
-		clocks = <&sys_clkin1>, <&dpll_abe_m3x2_ck>;
+		clocks = <&sys_clkin1>, <&dpll_core_byp_mux>;
 		reg = <0x0120>, <0x0124>, <0x012c>, <0x0128>;
 	};
 
@@ -309,10 +317,18 @@
 		clock-div = <1>;
 	};
 
+	dpll_dsp_byp_mux: dpll_dsp_byp_mux {
+		#clock-cells = <0>;
+		compatible = "ti,mux-clock";
+		clocks = <&sys_clkin1>, <&dsp_dpll_hs_clk_div>;
+		ti,bit-shift = <23>;
+		reg = <0x0240>;
+	};
+
 	dpll_dsp_ck: dpll_dsp_ck {
 		#clock-cells = <0>;
 		compatible = "ti,omap4-dpll-clock";
-		clocks = <&sys_clkin1>, <&dsp_dpll_hs_clk_div>;
+		clocks = <&sys_clkin1>, <&dpll_dsp_byp_mux>;
 		reg = <0x0234>, <0x0238>, <0x0240>, <0x023c>;
 	};
 
@@ -335,10 +351,18 @@
 		clock-div = <1>;
 	};
 
+	dpll_iva_byp_mux: dpll_iva_byp_mux {
+		#clock-cells = <0>;
+		compatible = "ti,mux-clock";
+		clocks = <&sys_clkin1>, <&iva_dpll_hs_clk_div>;
+		ti,bit-shift = <23>;
+		reg = <0x01ac>;
+	};
+
 	dpll_iva_ck: dpll_iva_ck {
 		#clock-cells = <0>;
 		compatible = "ti,omap4-dpll-clock";
-		clocks = <&sys_clkin1>, <&iva_dpll_hs_clk_div>;
+		clocks = <&sys_clkin1>, <&dpll_iva_byp_mux>;
 		reg = <0x01a0>, <0x01a4>, <0x01ac>, <0x01a8>;
 	};
 
@@ -361,10 +385,18 @@
 		clock-div = <1>;
 	};
 
+	dpll_gpu_byp_mux: dpll_gpu_byp_mux {
+		#clock-cells = <0>;
+		compatible = "ti,mux-clock";
+		clocks = <&sys_clkin1>, <&dpll_abe_m3x2_ck>;
+		ti,bit-shift = <23>;
+		reg = <0x02e4>;
+	};
+
 	dpll_gpu_ck: dpll_gpu_ck {
 		#clock-cells = <0>;
 		compatible = "ti,omap4-dpll-clock";
-		clocks = <&sys_clkin1>, <&dpll_abe_m3x2_ck>;
+		clocks = <&sys_clkin1>, <&dpll_gpu_byp_mux>;
 		reg = <0x02d8>, <0x02dc>, <0x02e4>, <0x02e0>;
 	};
 
@@ -398,10 +430,18 @@
 		clock-div = <1>;
 	};
 
+	dpll_ddr_byp_mux: dpll_ddr_byp_mux {
+		#clock-cells = <0>;
+		compatible = "ti,mux-clock";
+		clocks = <&sys_clkin1>, <&dpll_abe_m3x2_ck>;
+		ti,bit-shift = <23>;
+		reg = <0x021c>;
+	};
+
 	dpll_ddr_ck: dpll_ddr_ck {
 		#clock-cells = <0>;
 		compatible = "ti,omap4-dpll-clock";
-		clocks = <&sys_clkin1>, <&dpll_abe_m3x2_ck>;
+		clocks = <&sys_clkin1>, <&dpll_ddr_byp_mux>;
 		reg = <0x0210>, <0x0214>, <0x021c>, <0x0218>;
 	};
 
@@ -416,10 +456,18 @@
 		ti,invert-autoidle-bit;
 	};
 
+	dpll_gmac_byp_mux: dpll_gmac_byp_mux {
+		#clock-cells = <0>;
+		compatible = "ti,mux-clock";
+		clocks = <&sys_clkin1>, <&dpll_abe_m3x2_ck>;
+		ti,bit-shift = <23>;
+		reg = <0x02b4>;
+	};
+
 	dpll_gmac_ck: dpll_gmac_ck {
 		#clock-cells = <0>;
 		compatible = "ti,omap4-dpll-clock";
-		clocks = <&sys_clkin1>, <&dpll_abe_m3x2_ck>;
+		clocks = <&sys_clkin1>, <&dpll_gmac_byp_mux>;
 		reg = <0x02a8>, <0x02ac>, <0x02b4>, <0x02b0>;
 	};
 
@@ -482,10 +530,18 @@
 		clock-div = <1>;
 	};
 
+	dpll_eve_byp_mux: dpll_eve_byp_mux {
+		#clock-cells = <0>;
+		compatible = "ti,mux-clock";
+		clocks = <&sys_clkin1>, <&eve_dpll_hs_clk_div>;
+		ti,bit-shift = <23>;
+		reg = <0x0290>;
+	};
+
 	dpll_eve_ck: dpll_eve_ck {
 		#clock-cells = <0>;
 		compatible = "ti,omap4-dpll-clock";
-		clocks = <&sys_clkin1>, <&eve_dpll_hs_clk_div>;
+		clocks = <&sys_clkin1>, <&dpll_eve_byp_mux>;
 		reg = <0x0284>, <0x0288>, <0x0290>, <0x028c>;
 	};
 
@@ -1249,10 +1305,18 @@
 		clock-div = <1>;
 	};
 
+	dpll_per_byp_mux: dpll_per_byp_mux {
+		#clock-cells = <0>;
+		compatible = "ti,mux-clock";
+		clocks = <&sys_clkin1>, <&per_dpll_hs_clk_div>;
+		ti,bit-shift = <23>;
+		reg = <0x014c>;
+	};
+
 	dpll_per_ck: dpll_per_ck {
 		#clock-cells = <0>;
 		compatible = "ti,omap4-dpll-clock";
-		clocks = <&sys_clkin1>, <&per_dpll_hs_clk_div>;
+		clocks = <&sys_clkin1>, <&dpll_per_byp_mux>;
 		reg = <0x0140>, <0x0144>, <0x014c>, <0x0148>;
 	};
 
@@ -1275,10 +1339,18 @@
 		clock-div = <1>;
 	};
 
+	dpll_usb_byp_mux: dpll_usb_byp_mux {
+		#clock-cells = <0>;
+		compatible = "ti,mux-clock";
+		clocks = <&sys_clkin1>, <&usb_dpll_hs_clk_div>;
+		ti,bit-shift = <23>;
+		reg = <0x018c>;
+	};
+
 	dpll_usb_ck: dpll_usb_ck {
 		#clock-cells = <0>;
 		compatible = "ti,omap4-dpll-j-type-clock";
-		clocks = <&sys_clkin1>, <&usb_dpll_hs_clk_div>;
+		clocks = <&sys_clkin1>, <&dpll_usb_byp_mux>;
 		reg = <0x0180>, <0x0184>, <0x018c>, <0x0188>;
 	};
 
diff --git a/arch/arm/boot/dts/exynos3250.dtsi b/arch/arm/boot/dts/exynos3250.dtsi
index 277b48b..14ab515 100644
--- a/arch/arm/boot/dts/exynos3250.dtsi
+++ b/arch/arm/boot/dts/exynos3250.dtsi
@@ -18,6 +18,7 @@
  */
 
 #include "skeleton.dtsi"
+#include "exynos4-cpu-thermal.dtsi"
 #include <dt-bindings/clock/exynos3250.h>
 
 / {
@@ -130,6 +131,9 @@
 		pmu_system_controller: system-controller@10020000 {
 			compatible = "samsung,exynos3250-pmu", "syscon";
 			reg = <0x10020000 0x4000>;
+			interrupt-controller;
+			#interrupt-cells = <3>;
+			interrupt-parent = <&gic>;
 		};
 
 		mipi_phy: video-phy@10020710 {
@@ -184,6 +188,7 @@
 			compatible = "samsung,exynos3250-rtc";
 			reg = <0x10070000 0x100>;
 			interrupts = <0 73 0>, <0 74 0>;
+			interrupt-parent = <&pmu_system_controller>;
 			status = "disabled";
 		};
 
@@ -193,6 +198,7 @@
 			interrupts = <0 216 0>;
 			clocks = <&cmu CLK_TMU_APBIF>;
 			clock-names = "tmu_apbif";
+			#include "exynos4412-tmu-sensor-conf.dtsi"
 			status = "disabled";
 		};
 
diff --git a/arch/arm/boot/dts/exynos4-cpu-thermal.dtsi b/arch/arm/boot/dts/exynos4-cpu-thermal.dtsi
new file mode 100644
index 0000000..735cb2f
--- /dev/null
+++ b/arch/arm/boot/dts/exynos4-cpu-thermal.dtsi
@@ -0,0 +1,52 @@
+/*
+ * Device tree sources for Exynos4 thermal zone
+ *
+ * Copyright (c) 2014 Lukasz Majewski <l.majewski@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <dt-bindings/thermal/thermal.h>
+
+/ {
+thermal-zones {
+	cpu_thermal: cpu-thermal {
+		thermal-sensors = <&tmu 0>;
+		polling-delay-passive = <0>;
+		polling-delay = <0>;
+		trips {
+			cpu_alert0: cpu-alert-0 {
+				temperature = <70000>; /* millicelsius */
+				hysteresis = <10000>; /* millicelsius */
+				type = "active";
+			};
+			cpu_alert1: cpu-alert-1 {
+				temperature = <95000>; /* millicelsius */
+				hysteresis = <10000>; /* millicelsius */
+				type = "active";
+			};
+			cpu_alert2: cpu-alert-2 {
+				temperature = <110000>; /* millicelsius */
+				hysteresis = <10000>; /* millicelsius */
+				type = "active";
+			};
+			cpu_crit0: cpu-crit-0 {
+				temperature = <120000>; /* millicelsius */
+				hysteresis = <0>; /* millicelsius */
+				type = "critical";
+			};
+		};
+		cooling-maps {
+			map0 {
+				trip = <&cpu_alert0>;
+			};
+			map1 {
+				trip = <&cpu_alert1>;
+			};
+		};
+	};
+};
+};
diff --git a/arch/arm/boot/dts/exynos4.dtsi b/arch/arm/boot/dts/exynos4.dtsi
index 76173ca..e20cdc2 100644
--- a/arch/arm/boot/dts/exynos4.dtsi
+++ b/arch/arm/boot/dts/exynos4.dtsi
@@ -38,6 +38,7 @@
 		i2c5 = &i2c_5;
 		i2c6 = &i2c_6;
 		i2c7 = &i2c_7;
+		i2c8 = &i2c_8;
 		csis0 = &csis_0;
 		csis1 = &csis_1;
 		fimc0 = &fimc_0;
@@ -104,6 +105,7 @@
 		compatible = "samsung,exynos4210-pd";
 		reg = <0x10023C20 0x20>;
 		#power-domain-cells = <0>;
+		power-domains = <&pd_lcd0>;
 	};
 
 	pd_cam: cam-power-domain@10023C00 {
@@ -152,6 +154,9 @@
 	pmu_system_controller: system-controller@10020000 {
 		compatible = "samsung,exynos4210-pmu", "syscon";
 		reg = <0x10020000 0x4000>;
+		interrupt-controller;
+		#interrupt-cells = <3>;
+		interrupt-parent = <&gic>;
 	};
 
 	dsi_0: dsi@11C80000 {
@@ -264,6 +269,7 @@
 	rtc@10070000 {
 		compatible = "samsung,s3c6410-rtc";
 		reg = <0x10070000 0x100>;
+		interrupt-parent = <&pmu_system_controller>;
 		interrupts = <0 44 0>, <0 45 0>;
 		clocks = <&clock CLK_RTC>;
 		clock-names = "rtc";
@@ -554,6 +560,22 @@
 		status = "disabled";
 	};
 
+	i2c_8: i2c@138E0000 {
+		#address-cells = <1>;
+		#size-cells = <0>;
+		compatible = "samsung,s3c2440-hdmiphy-i2c";
+		reg = <0x138E0000 0x100>;
+		interrupts = <0 93 0>;
+		clocks = <&clock CLK_I2C_HDMI>;
+		clock-names = "i2c";
+		status = "disabled";
+
+		hdmi_i2c_phy: hdmiphy@38 {
+			compatible = "exynos4210-hdmiphy";
+			reg = <0x38>;
+		};
+	};
+
 	spi_0: spi@13920000 {
 		compatible = "samsung,exynos4210-spi";
 		reg = <0x13920000 0x100>;
@@ -663,6 +685,33 @@
 		status = "disabled";
 	};
 
+	tmu: tmu@100C0000 {
+		#include "exynos4412-tmu-sensor-conf.dtsi"
+	};
+
+	hdmi: hdmi@12D00000 {
+		compatible = "samsung,exynos4210-hdmi";
+		reg = <0x12D00000 0x70000>;
+		interrupts = <0 92 0>;
+		clock-names = "hdmi", "sclk_hdmi", "sclk_pixel", "sclk_hdmiphy",
+			"mout_hdmi";
+		clocks = <&clock CLK_HDMI>, <&clock CLK_SCLK_HDMI>,
+			<&clock CLK_SCLK_PIXEL>, <&clock CLK_SCLK_HDMIPHY>,
+			<&clock CLK_MOUT_HDMI>;
+		phy = <&hdmi_i2c_phy>;
+		power-domains = <&pd_tv>;
+		samsung,syscon-phandle = <&pmu_system_controller>;
+		status = "disabled";
+	};
+
+	mixer: mixer@12C10000 {
+		compatible = "samsung,exynos4210-mixer";
+		interrupts = <0 91 0>;
+		reg = <0x12C10000 0x2100>, <0x12c00000 0x300>;
+		power-domains = <&pd_tv>;
+		status = "disabled";
+	};
+
 	ppmu_dmc0: ppmu_dmc0@106a0000 {
 		compatible = "samsung,exynos-ppmu";
 		reg = <0x106a0000 0x2000>;
diff --git a/arch/arm/boot/dts/exynos4210-trats.dts b/arch/arm/boot/dts/exynos4210-trats.dts
index 3d6652a..32c5fd8 100644
--- a/arch/arm/boot/dts/exynos4210-trats.dts
+++ b/arch/arm/boot/dts/exynos4210-trats.dts
@@ -426,6 +426,25 @@
 		status = "okay";
 	};
 
+	tmu@100C0000 {
+		status = "okay";
+	};
+
+	thermal-zones {
+		cpu_thermal: cpu-thermal {
+			cooling-maps {
+				map0 {
+				     /* Corresponds to 800MHz at freq_table */
+				     cooling-device = <&cpu0 2 2>;
+				};
+				map1 {
+				     /* Corresponds to 200MHz at freq_table */
+				     cooling-device = <&cpu0 4 4>;
+			       };
+		       };
+		};
+	};
+
 	camera {
 		pinctrl-names = "default";
 		pinctrl-0 = <>;
diff --git a/arch/arm/boot/dts/exynos4210-universal_c210.dts b/arch/arm/boot/dts/exynos4210-universal_c210.dts
index b57e6b8..d4f2b11 100644
--- a/arch/arm/boot/dts/exynos4210-universal_c210.dts
+++ b/arch/arm/boot/dts/exynos4210-universal_c210.dts
@@ -505,6 +505,63 @@
 			assigned-clock-rates = <0>, <160000000>;
 		};
 	};
+
+	hdmi_en: voltage-regulator-hdmi-5v {
+		compatible = "regulator-fixed";
+		regulator-name = "HDMI_5V";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		gpio = <&gpe0 1 0>;
+		enable-active-high;
+	};
+
+	hdmi_ddc: i2c-ddc {
+		compatible = "i2c-gpio";
+		gpios = <&gpe4 2 0 &gpe4 3 0>;
+		i2c-gpio,delay-us = <100>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		pinctrl-0 = <&i2c_ddc_bus>;
+		pinctrl-names = "default";
+		status = "okay";
+	};
+
+	mixer@12C10000 {
+		status = "okay";
+	};
+
+	hdmi@12D00000 {
+		hpd-gpio = <&gpx3 7 0>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&hdmi_hpd>;
+		hdmi-en-supply = <&hdmi_en>;
+		vdd-supply = <&ldo3_reg>;
+		vdd_osc-supply = <&ldo4_reg>;
+		vdd_pll-supply = <&ldo3_reg>;
+		ddc = <&hdmi_ddc>;
+		status = "okay";
+	};
+
+	i2c@138E0000 {
+		status = "okay";
+	};
+};
+
+&pinctrl_1 {
+	hdmi_hpd: hdmi-hpd {
+		samsung,pins = "gpx3-7";
+		samsung,pin-pud = <0>;
+	};
+};
+
+&pinctrl_0 {
+	i2c_ddc_bus: i2c-ddc-bus {
+		samsung,pins = "gpe4-2", "gpe4-3";
+		samsung,pin-function = <2>;
+		samsung,pin-pud = <3>;
+		samsung,pin-drv = <0>;
+	};
 };
 
 &mdma1 {
diff --git a/arch/arm/boot/dts/exynos4210.dtsi b/arch/arm/boot/dts/exynos4210.dtsi
index 67c832c..be89f83 100644
--- a/arch/arm/boot/dts/exynos4210.dtsi
+++ b/arch/arm/boot/dts/exynos4210.dtsi
@@ -21,6 +21,7 @@
 
 #include "exynos4.dtsi"
 #include "exynos4210-pinctrl.dtsi"
+#include "exynos4-cpu-thermal.dtsi"
 
 / {
 	compatible = "samsung,exynos4210", "samsung,exynos4";
@@ -35,10 +36,13 @@
 		#address-cells = <1>;
 		#size-cells = <0>;
 
-		cpu@900 {
+		cpu0: cpu@900 {
 			device_type = "cpu";
 			compatible = "arm,cortex-a9";
 			reg = <0x900>;
+			cooling-min-level = <4>;
+			cooling-max-level = <2>;
+			#cooling-cells = <2>; /* min followed by max */
 		};
 
 		cpu@901 {
@@ -153,16 +157,38 @@
 		reg = <0x03860000 0x1000>;
 	};
 
-	tmu@100C0000 {
+	tmu: tmu@100C0000 {
 		compatible = "samsung,exynos4210-tmu";
 		interrupt-parent = <&combiner>;
 		reg = <0x100C0000 0x100>;
 		interrupts = <2 4>;
 		clocks = <&clock CLK_TMU_APBIF>;
 		clock-names = "tmu_apbif";
+		samsung,tmu_gain = <15>;
+		samsung,tmu_reference_voltage = <7>;
 		status = "disabled";
 	};
 
+	thermal-zones {
+		cpu_thermal: cpu-thermal {
+			polling-delay-passive = <0>;
+			polling-delay = <0>;
+			thermal-sensors = <&tmu 0>;
+
+			trips {
+			      cpu_alert0: cpu-alert-0 {
+				      temperature = <85000>; /* millicelsius */
+			      };
+			      cpu_alert1: cpu-alert-1 {
+				      temperature = <100000>; /* millicelsius */
+			      };
+			      cpu_alert2: cpu-alert-2 {
+				      temperature = <110000>; /* millicelsius */
+			      };
+			};
+		};
+	};
+
 	g2d@12800000 {
 		compatible = "samsung,s5pv210-g2d";
 		reg = <0x12800000 0x1000>;
@@ -203,6 +229,14 @@
 		};
 	};
 
+	mixer: mixer@12C10000 {
+		clock-names = "mixer", "hdmi", "sclk_hdmi", "vp", "mout_mixer",
+			"sclk_mixer";
+		clocks = <&clock CLK_MIXER>, <&clock CLK_HDMI>,
+			<&clock CLK_SCLK_HDMI>, <&clock CLK_VP>,
+			<&clock CLK_MOUT_MIXER>, <&clock CLK_SCLK_MIXER>;
+	};
+
 	ppmu_lcd1: ppmu_lcd1@12240000 {
 		compatible = "samsung,exynos-ppmu";
 		reg = <0x12240000 0x2000>;
diff --git a/arch/arm/boot/dts/exynos4212.dtsi b/arch/arm/boot/dts/exynos4212.dtsi
index dd0a43e..5be0328 100644
--- a/arch/arm/boot/dts/exynos4212.dtsi
+++ b/arch/arm/boot/dts/exynos4212.dtsi
@@ -26,10 +26,13 @@
 		#address-cells = <1>;
 		#size-cells = <0>;
 
-		cpu@A00 {
+		cpu0: cpu@A00 {
 			device_type = "cpu";
 			compatible = "arm,cortex-a9";
 			reg = <0xA00>;
+			cooling-min-level = <13>;
+			cooling-max-level = <7>;
+			#cooling-cells = <2>; /* min followed by max */
 		};
 
 		cpu@A01 {
diff --git a/arch/arm/boot/dts/exynos4412-odroid-common.dtsi b/arch/arm/boot/dts/exynos4412-odroid-common.dtsi
index de80b5b..adb4f6a 100644
--- a/arch/arm/boot/dts/exynos4412-odroid-common.dtsi
+++ b/arch/arm/boot/dts/exynos4412-odroid-common.dtsi
@@ -249,6 +249,20 @@
 					regulator-always-on;
 				};
 
+				ldo8_reg: ldo@8 {
+					regulator-compatible = "LDO8";
+					regulator-name = "VDD10_HDMI_1.0V";
+					regulator-min-microvolt = <1000000>;
+					regulator-max-microvolt = <1000000>;
+				};
+
+				ldo10_reg: ldo@10 {
+					regulator-compatible = "LDO10";
+					regulator-name = "VDDQ_MIPIHSI_1.8V";
+					regulator-min-microvolt = <1800000>;
+					regulator-max-microvolt = <1800000>;
+				};
+
 				ldo11_reg: LDO11 {
 					regulator-name = "VDD18_ABB1_1.8V";
 					regulator-min-microvolt = <1800000>;
@@ -411,6 +425,51 @@
 	ehci: ehci@12580000 {
 		status = "okay";
 	};
+
+	tmu@100C0000 {
+		vtmu-supply = <&ldo10_reg>;
+		status = "okay";
+	};
+
+	thermal-zones {
+		cpu_thermal: cpu-thermal {
+			cooling-maps {
+				map0 {
+				     /* Corresponds to 800MHz at freq_table */
+				     cooling-device = <&cpu0 7 7>;
+				};
+				map1 {
+				     /* Corresponds to 200MHz at freq_table */
+				     cooling-device = <&cpu0 13 13>;
+			       };
+		       };
+		};
+	};
+
+	mixer: mixer@12C10000 {
+		status = "okay";
+	};
+
+	hdmi@12D00000 {
+		hpd-gpio = <&gpx3 7 0>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&hdmi_hpd>;
+		vdd-supply = <&ldo8_reg>;
+		vdd_osc-supply = <&ldo10_reg>;
+		vdd_pll-supply = <&ldo8_reg>;
+		ddc = <&hdmi_ddc>;
+		status = "okay";
+	};
+
+	hdmi_ddc: i2c@13880000 {
+		status = "okay";
+		pinctrl-names = "default";
+		pinctrl-0 = <&i2c2_bus>;
+	};
+
+	i2c@138E0000 {
+		status = "okay";
+	};
 };
 
 &pinctrl_1 {
@@ -425,4 +484,9 @@
 		samsung,pin-pud = <0>;
 		samsung,pin-drv = <0>;
 	};
+
+	hdmi_hpd: hdmi-hpd {
+		samsung,pins = "gpx3-7";
+		samsung,pin-pud = <1>;
+	};
 };
diff --git a/arch/arm/boot/dts/exynos4412-tmu-sensor-conf.dtsi b/arch/arm/boot/dts/exynos4412-tmu-sensor-conf.dtsi
new file mode 100644
index 0000000..e3f7934
--- /dev/null
+++ b/arch/arm/boot/dts/exynos4412-tmu-sensor-conf.dtsi
@@ -0,0 +1,24 @@
+/*
+ * Device tree sources for Exynos4412 TMU sensor configuration
+ *
+ * Copyright (c) 2014 Lukasz Majewski <l.majewski@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <dt-bindings/thermal/thermal_exynos.h>
+
+#thermal-sensor-cells = <0>;
+samsung,tmu_gain = <8>;
+samsung,tmu_reference_voltage = <16>;
+samsung,tmu_noise_cancel_mode = <4>;
+samsung,tmu_efuse_value = <55>;
+samsung,tmu_min_efuse_value = <40>;
+samsung,tmu_max_efuse_value = <100>;
+samsung,tmu_first_point_trim = <25>;
+samsung,tmu_second_point_trim = <85>;
+samsung,tmu_default_temp_offset = <50>;
+samsung,tmu_cal_type = <TYPE_ONE_POINT_TRIMMING>;
diff --git a/arch/arm/boot/dts/exynos4412-trats2.dts b/arch/arm/boot/dts/exynos4412-trats2.dts
index 21f7480..173ffa4 100644
--- a/arch/arm/boot/dts/exynos4412-trats2.dts
+++ b/arch/arm/boot/dts/exynos4412-trats2.dts
@@ -927,6 +927,21 @@
 		pulldown-ohm = <100000>; /* 100K */
 		io-channels = <&adc 2>;  /* Battery temperature */
 	};
+
+	thermal-zones {
+		cpu_thermal: cpu-thermal {
+			cooling-maps {
+				map0 {
+				     /* Corresponds to 800MHz at freq_table */
+				     cooling-device = <&cpu0 7 7>;
+				};
+				map1 {
+				     /* Corresponds to 200MHz at freq_table */
+				     cooling-device = <&cpu0 13 13>;
+			       };
+		       };
+		};
+	};
 };
 
 &pmu_system_controller {
diff --git a/arch/arm/boot/dts/exynos4412.dtsi b/arch/arm/boot/dts/exynos4412.dtsi
index 0f6ec93..68ad43b 100644
--- a/arch/arm/boot/dts/exynos4412.dtsi
+++ b/arch/arm/boot/dts/exynos4412.dtsi
@@ -26,10 +26,13 @@
 		#address-cells = <1>;
 		#size-cells = <0>;
 
-		cpu@A00 {
+		cpu0: cpu@A00 {
 			device_type = "cpu";
 			compatible = "arm,cortex-a9";
 			reg = <0xA00>;
+			cooling-min-level = <13>;
+			cooling-max-level = <7>;
+			#cooling-cells = <2>; /* min followed by max */
 		};
 
 		cpu@A01 {
diff --git a/arch/arm/boot/dts/exynos4x12.dtsi b/arch/arm/boot/dts/exynos4x12.dtsi
index f5e0ae7..6a6abe1 100644
--- a/arch/arm/boot/dts/exynos4x12.dtsi
+++ b/arch/arm/boot/dts/exynos4x12.dtsi
@@ -19,6 +19,7 @@
 
 #include "exynos4.dtsi"
 #include "exynos4x12-pinctrl.dtsi"
+#include "exynos4-cpu-thermal.dtsi"
 
 / {
 	aliases {
@@ -297,4 +298,15 @@
 		clock-names = "tmu_apbif";
 		status = "disabled";
 	};
+
+	hdmi: hdmi@12D00000 {
+		compatible = "samsung,exynos4212-hdmi";
+	};
+
+	mixer: mixer@12C10000 {
+		compatible = "samsung,exynos4212-mixer";
+		clock-names = "mixer", "hdmi", "sclk_hdmi", "vp";
+		clocks = <&clock CLK_MIXER>, <&clock CLK_HDMI>,
+			 <&clock CLK_SCLK_HDMI>, <&clock CLK_VP>;
+	};
 };
diff --git a/arch/arm/boot/dts/exynos5250.dtsi b/arch/arm/boot/dts/exynos5250.dtsi
index 9bb1b0b..77f656e 100644
--- a/arch/arm/boot/dts/exynos5250.dtsi
+++ b/arch/arm/boot/dts/exynos5250.dtsi
@@ -20,7 +20,7 @@
 #include <dt-bindings/clock/exynos5250.h>
 #include "exynos5.dtsi"
 #include "exynos5250-pinctrl.dtsi"
-
+#include "exynos4-cpu-thermal.dtsi"
 #include <dt-bindings/clock/exynos-audss-clk.h>
 
 / {
@@ -58,11 +58,14 @@
 		#address-cells = <1>;
 		#size-cells = <0>;
 
-		cpu@0 {
+		cpu0: cpu@0 {
 			device_type = "cpu";
 			compatible = "arm,cortex-a15";
 			reg = <0>;
 			clock-frequency = <1700000000>;
+			cooling-min-level = <15>;
+			cooling-max-level = <9>;
+			#cooling-cells = <2>; /* min followed by max */
 		};
 		cpu@1 {
 			device_type = "cpu";
@@ -102,6 +105,12 @@
 		#power-domain-cells = <0>;
 	};
 
+	pd_disp1: disp1-power-domain@100440A0 {
+		compatible = "samsung,exynos4210-pd";
+		reg = <0x100440A0 0x20>;
+		#power-domain-cells = <0>;
+	};
+
 	clock: clock-controller@10010000 {
 		compatible = "samsung,exynos5250-clock";
 		reg = <0x10010000 0x30000>;
@@ -196,6 +205,9 @@
 		clock-names = "clkout16";
 		clocks = <&clock CLK_FIN_PLL>;
 		#clock-cells = <1>;
+		interrupt-controller;
+		#interrupt-cells = <3>;
+		interrupt-parent = <&gic>;
 	};
 
 	sysreg_system_controller: syscon@10050000 {
@@ -232,15 +244,36 @@
 	rtc: rtc@101E0000 {
 		clocks = <&clock CLK_RTC>;
 		clock-names = "rtc";
+		interrupt-parent = <&pmu_system_controller>;
 		status = "disabled";
 	};
 
-	tmu@10060000 {
+	tmu: tmu@10060000 {
 		compatible = "samsung,exynos5250-tmu";
 		reg = <0x10060000 0x100>;
 		interrupts = <0 65 0>;
 		clocks = <&clock CLK_TMU>;
 		clock-names = "tmu_apbif";
+		#include "exynos4412-tmu-sensor-conf.dtsi"
+	};
+
+	thermal-zones {
+		cpu_thermal: cpu-thermal {
+			polling-delay-passive = <0>;
+			polling-delay = <0>;
+			thermal-sensors = <&tmu 0>;
+
+			cooling-maps {
+				map0 {
+				     /* Corresponds to 800MHz at freq_table */
+				     cooling-device = <&cpu0 9 9>;
+				};
+				map1 {
+				     /* Corresponds to 200MHz at freq_table */
+				     cooling-device = <&cpu0 15 15>;
+			       };
+		       };
+		};
 	};
 
 	serial@12C00000 {
@@ -719,6 +752,7 @@
 	hdmi: hdmi {
 		compatible = "samsung,exynos4212-hdmi";
 		reg = <0x14530000 0x70000>;
+		power-domains = <&pd_disp1>;
 		interrupts = <0 95 0>;
 		clocks = <&clock CLK_HDMI>, <&clock CLK_SCLK_HDMI>,
 			 <&clock CLK_SCLK_PIXEL>, <&clock CLK_SCLK_HDMIPHY>,
@@ -731,9 +765,11 @@
 	mixer {
 		compatible = "samsung,exynos5250-mixer";
 		reg = <0x14450000 0x10000>;
+		power-domains = <&pd_disp1>;
 		interrupts = <0 94 0>;
-		clocks = <&clock CLK_MIXER>, <&clock CLK_SCLK_HDMI>;
-		clock-names = "mixer", "sclk_hdmi";
+		clocks = <&clock CLK_MIXER>, <&clock CLK_HDMI>,
+			 <&clock CLK_SCLK_HDMI>;
+		clock-names = "mixer", "hdmi", "sclk_hdmi";
 	};
 
 	dp_phy: video-phy@10040720 {
@@ -743,6 +779,7 @@
 	};
 
 	dp: dp-controller@145B0000 {
+		power-domains = <&pd_disp1>;
 		clocks = <&clock CLK_DP>;
 		clock-names = "dp";
 		phys = <&dp_phy>;
@@ -750,6 +787,7 @@
 	};
 
 	fimd: fimd@14400000 {
+		power-domains = <&pd_disp1>;
 		clocks = <&clock CLK_SCLK_FIMD1>, <&clock CLK_FIMD1>;
 		clock-names = "sclk_fimd", "fimd";
 	};
diff --git a/arch/arm/boot/dts/exynos5420-trip-points.dtsi b/arch/arm/boot/dts/exynos5420-trip-points.dtsi
new file mode 100644
index 0000000..5d31fc1
--- /dev/null
+++ b/arch/arm/boot/dts/exynos5420-trip-points.dtsi
@@ -0,0 +1,35 @@
+/*
+ * Device tree sources for default Exynos5420 thermal zone definition
+ *
+ * Copyright (c) 2014 Lukasz Majewski <l.majewski@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+polling-delay-passive = <0>;
+polling-delay = <0>;
+trips {
+	cpu-alert-0 {
+		temperature = <85000>; /* millicelsius */
+		hysteresis = <10000>; /* millicelsius */
+		type = "active";
+	};
+	cpu-alert-1 {
+		temperature = <103000>; /* millicelsius */
+		hysteresis = <10000>; /* millicelsius */
+		type = "active";
+	};
+	cpu-alert-2 {
+		temperature = <110000>; /* millicelsius */
+		hysteresis = <10000>; /* millicelsius */
+		type = "active";
+	};
+	cpu-crit-0 {
+		temperature = <1200000>; /* millicelsius */
+		hysteresis = <0>; /* millicelsius */
+		type = "critical";
+	};
+};
diff --git a/arch/arm/boot/dts/exynos5420.dtsi b/arch/arm/boot/dts/exynos5420.dtsi
index 9dc2e97..b3d2d53 100644
--- a/arch/arm/boot/dts/exynos5420.dtsi
+++ b/arch/arm/boot/dts/exynos5420.dtsi
@@ -327,6 +327,7 @@
 	rtc: rtc@101E0000 {
 		clocks = <&clock CLK_RTC>;
 		clock-names = "rtc";
+		interrupt-parent = <&pmu_system_controller>;
 		status = "disabled";
 	};
 
@@ -740,8 +741,9 @@
 		compatible = "samsung,exynos5420-mixer";
 		reg = <0x14450000 0x10000>;
 		interrupts = <0 94 0>;
-		clocks = <&clock CLK_MIXER>, <&clock CLK_SCLK_HDMI>;
-		clock-names = "mixer", "sclk_hdmi";
+		clocks = <&clock CLK_MIXER>, <&clock CLK_HDMI>,
+			 <&clock CLK_SCLK_HDMI>;
+		clock-names = "mixer", "hdmi", "sclk_hdmi";
 		power-domains = <&disp_pd>;
 	};
 
@@ -769,6 +771,9 @@
 		clock-names = "clkout16";
 		clocks = <&clock CLK_FIN_PLL>;
 		#clock-cells = <1>;
+		interrupt-controller;
+		#interrupt-cells = <3>;
+		interrupt-parent = <&gic>;
 	};
 
 	sysreg_system_controller: syscon@10050000 {
@@ -782,6 +787,7 @@
 		interrupts = <0 65 0>;
 		clocks = <&clock CLK_TMU>;
 		clock-names = "tmu_apbif";
+		#include "exynos4412-tmu-sensor-conf.dtsi"
 	};
 
 	tmu_cpu1: tmu@10064000 {
@@ -790,6 +796,7 @@
 		interrupts = <0 183 0>;
 		clocks = <&clock CLK_TMU>;
 		clock-names = "tmu_apbif";
+		#include "exynos4412-tmu-sensor-conf.dtsi"
 	};
 
 	tmu_cpu2: tmu@10068000 {
@@ -798,6 +805,7 @@
 		interrupts = <0 184 0>;
 		clocks = <&clock CLK_TMU>, <&clock CLK_TMU>;
 		clock-names = "tmu_apbif", "tmu_triminfo_apbif";
+		#include "exynos4412-tmu-sensor-conf.dtsi"
 	};
 
 	tmu_cpu3: tmu@1006c000 {
@@ -806,6 +814,7 @@
 		interrupts = <0 185 0>;
 		clocks = <&clock CLK_TMU>, <&clock CLK_TMU_GPU>;
 		clock-names = "tmu_apbif", "tmu_triminfo_apbif";
+		#include "exynos4412-tmu-sensor-conf.dtsi"
 	};
 
 	tmu_gpu: tmu@100a0000 {
@@ -814,6 +823,30 @@
 		interrupts = <0 215 0>;
 		clocks = <&clock CLK_TMU_GPU>, <&clock CLK_TMU>;
 		clock-names = "tmu_apbif", "tmu_triminfo_apbif";
+		#include "exynos4412-tmu-sensor-conf.dtsi"
+	};
+
+	thermal-zones {
+		cpu0_thermal: cpu0-thermal {
+			thermal-sensors = <&tmu_cpu0>;
+			#include "exynos5420-trip-points.dtsi"
+		};
+		cpu1_thermal: cpu1-thermal {
+		       thermal-sensors = <&tmu_cpu1>;
+		       #include "exynos5420-trip-points.dtsi"
+		};
+		cpu2_thermal: cpu2-thermal {
+		       thermal-sensors = <&tmu_cpu2>;
+		       #include "exynos5420-trip-points.dtsi"
+		};
+		cpu3_thermal: cpu3-thermal {
+		       thermal-sensors = <&tmu_cpu3>;
+		       #include "exynos5420-trip-points.dtsi"
+		};
+		gpu_thermal: gpu-thermal {
+		       thermal-sensors = <&tmu_gpu>;
+		       #include "exynos5420-trip-points.dtsi"
+		};
 	};
 
         watchdog: watchdog@101D0000 {
diff --git a/arch/arm/boot/dts/exynos5440-tmu-sensor-conf.dtsi b/arch/arm/boot/dts/exynos5440-tmu-sensor-conf.dtsi
new file mode 100644
index 0000000..7b2fba0
--- /dev/null
+++ b/arch/arm/boot/dts/exynos5440-tmu-sensor-conf.dtsi
@@ -0,0 +1,24 @@
+/*
+ * Device tree sources for Exynos5440 TMU sensor configuration
+ *
+ * Copyright (c) 2014 Lukasz Majewski <l.majewski@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <dt-bindings/thermal/thermal_exynos.h>
+
+#thermal-sensor-cells = <0>;
+samsung,tmu_gain = <5>;
+samsung,tmu_reference_voltage = <16>;
+samsung,tmu_noise_cancel_mode = <4>;
+samsung,tmu_efuse_value = <0x5d2d>;
+samsung,tmu_min_efuse_value = <16>;
+samsung,tmu_max_efuse_value = <76>;
+samsung,tmu_first_point_trim = <25>;
+samsung,tmu_second_point_trim = <70>;
+samsung,tmu_default_temp_offset = <25>;
+samsung,tmu_cal_type = <TYPE_ONE_POINT_TRIMMING>;
diff --git a/arch/arm/boot/dts/exynos5440-trip-points.dtsi b/arch/arm/boot/dts/exynos5440-trip-points.dtsi
new file mode 100644
index 0000000..48adfa8
--- /dev/null
+++ b/arch/arm/boot/dts/exynos5440-trip-points.dtsi
@@ -0,0 +1,25 @@
+/*
+ * Device tree sources for default Exynos5440 thermal zone definition
+ *
+ * Copyright (c) 2014 Lukasz Majewski <l.majewski@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+polling-delay-passive = <0>;
+polling-delay = <0>;
+trips {
+	cpu-alert-0 {
+		temperature = <100000>; /* millicelsius */
+		hysteresis = <0>; /* millicelsius */
+		type = "active";
+	};
+	cpu-crit-0 {
+		temperature = <1050000>; /* millicelsius */
+		hysteresis = <0>; /* millicelsius */
+		type = "critical";
+	};
+};
diff --git a/arch/arm/boot/dts/exynos5440.dtsi b/arch/arm/boot/dts/exynos5440.dtsi
index 8f3373c..59d9416 100644
--- a/arch/arm/boot/dts/exynos5440.dtsi
+++ b/arch/arm/boot/dts/exynos5440.dtsi
@@ -219,6 +219,7 @@
 		interrupts = <0 58 0>;
 		clocks = <&clock CLK_B_125>;
 		clock-names = "tmu_apbif";
+		#include "exynos5440-tmu-sensor-conf.dtsi"
 	};
 
 	tmuctrl_1: tmuctrl@16011C {
@@ -227,6 +228,7 @@
 		interrupts = <0 58 0>;
 		clocks = <&clock CLK_B_125>;
 		clock-names = "tmu_apbif";
+		#include "exynos5440-tmu-sensor-conf.dtsi"
 	};
 
 	tmuctrl_2: tmuctrl@160120 {
@@ -235,6 +237,22 @@
 		interrupts = <0 58 0>;
 		clocks = <&clock CLK_B_125>;
 		clock-names = "tmu_apbif";
+		#include "exynos5440-tmu-sensor-conf.dtsi"
+	};
+
+	thermal-zones {
+		cpu0_thermal: cpu0-thermal {
+			thermal-sensors = <&tmuctrl_0>;
+			#include "exynos5440-trip-points.dtsi"
+		};
+		cpu1_thermal: cpu1-thermal {
+		       thermal-sensors = <&tmuctrl_1>;
+		       #include "exynos5440-trip-points.dtsi"
+		};
+		cpu2_thermal: cpu2-thermal {
+		       thermal-sensors = <&tmuctrl_2>;
+		       #include "exynos5440-trip-points.dtsi"
+		};
 	};
 
 	sata@210000 {
diff --git a/arch/arm/boot/dts/imx6qdl-sabresd.dtsi b/arch/arm/boot/dts/imx6qdl-sabresd.dtsi
index f1cd214..a626e6d 100644
--- a/arch/arm/boot/dts/imx6qdl-sabresd.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-sabresd.dtsi
@@ -35,6 +35,7 @@
 			regulator-max-microvolt = <5000000>;
 			gpio = <&gpio3 22 0>;
 			enable-active-high;
+			vin-supply = <&swbst_reg>;
 		};
 
 		reg_usb_h1_vbus: regulator@1 {
@@ -45,6 +46,7 @@
 			regulator-max-microvolt = <5000000>;
 			gpio = <&gpio1 29 0>;
 			enable-active-high;
+			vin-supply = <&swbst_reg>;
 		};
 
 		reg_audio: regulator@2 {
diff --git a/arch/arm/boot/dts/imx6sl-evk.dts b/arch/arm/boot/dts/imx6sl-evk.dts
index fda4932..945887d 100644
--- a/arch/arm/boot/dts/imx6sl-evk.dts
+++ b/arch/arm/boot/dts/imx6sl-evk.dts
@@ -52,6 +52,7 @@
 			regulator-max-microvolt = <5000000>;
 			gpio = <&gpio4 0 0>;
 			enable-active-high;
+			vin-supply = <&swbst_reg>;
 		};
 
 		reg_usb_otg2_vbus: regulator@1 {
@@ -62,6 +63,7 @@
 			regulator-max-microvolt = <5000000>;
 			gpio = <&gpio4 2 0>;
 			enable-active-high;
+			vin-supply = <&swbst_reg>;
 		};
 
 		reg_aud3v: regulator@2 {
diff --git a/arch/arm/boot/dts/omap2.dtsi b/arch/arm/boot/dts/omap2.dtsi
index 59d1c29..578fa2a 100644
--- a/arch/arm/boot/dts/omap2.dtsi
+++ b/arch/arm/boot/dts/omap2.dtsi
@@ -87,8 +87,8 @@
 				     <14>,
 				     <15>;
 			#dma-cells = <1>;
-			#dma-channels = <32>;
-			#dma-requests = <64>;
+			dma-channels = <32>;
+			dma-requests = <64>;
 		};
 
 		i2c1: i2c@48070000 {
diff --git a/arch/arm/boot/dts/omap3-n900.dts b/arch/arm/boot/dts/omap3-n900.dts
index 6040327..db80f9d 100644
--- a/arch/arm/boot/dts/omap3-n900.dts
+++ b/arch/arm/boot/dts/omap3-n900.dts
@@ -16,6 +16,13 @@
 	model = "Nokia N900";
 	compatible = "nokia,omap3-n900", "ti,omap3430", "ti,omap3";
 
+	aliases {
+		i2c0;
+		i2c1 = &i2c1;
+		i2c2 = &i2c2;
+		i2c3 = &i2c3;
+	};
+
 	cpus {
 		cpu@0 {
 			cpu0-supply = <&vcc>;
@@ -704,7 +711,7 @@
 		compatible = "smsc,lan91c94";
 		interrupt-parent = <&gpio2>;
 		interrupts = <22 IRQ_TYPE_LEVEL_HIGH>;	/* gpio54 */
-		reg = <1 0x300 0xf>;		/* 16 byte IO range at offset 0x300 */
+		reg = <1 0 0xf>;		/* 16 byte IO range */
 		bank-width = <2>;
 		pinctrl-names = "default";
 		pinctrl-0 = <&ethernet_pins>;
diff --git a/arch/arm/boot/dts/omap3.dtsi b/arch/arm/boot/dts/omap3.dtsi
index 01b7111..3fdc84f 100644
--- a/arch/arm/boot/dts/omap3.dtsi
+++ b/arch/arm/boot/dts/omap3.dtsi
@@ -92,6 +92,8 @@
 			ti,hwmods = "aes";
 			reg = <0x480c5000 0x50>;
 			interrupts = <0>;
+			dmas = <&sdma 65 &sdma 66>;
+			dma-names = "tx", "rx";
 		};
 
 		prm: prm@48306000 {
@@ -155,8 +157,8 @@
 				     <14>,
 				     <15>;
 			#dma-cells = <1>;
-			#dma-channels = <32>;
-			#dma-requests = <96>;
+			dma-channels = <32>;
+			dma-requests = <96>;
 		};
 
 		omap3_pmx_core: pinmux@48002030 {
@@ -550,6 +552,8 @@
 			ti,hwmods = "sham";
 			reg = <0x480c3000 0x64>;
 			interrupts = <49>;
+			dmas = <&sdma 69>;
+			dma-names = "rx";
 		};
 
 		smartreflex_core: smartreflex@480cb000 {
diff --git a/arch/arm/boot/dts/omap4-duovero.dtsi b/arch/arm/boot/dts/omap4-duovero.dtsi
index e860ccd..f2a94fa 100644
--- a/arch/arm/boot/dts/omap4-duovero.dtsi
+++ b/arch/arm/boot/dts/omap4-duovero.dtsi
@@ -173,14 +173,12 @@
 	twl: twl@48 {
 		reg = <0x48>;
 		interrupts = <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>;		/* IRQ_SYS_1N cascaded to gic */
-		interrupt-parent = <&gic>;
 	};
 
 	twl6040: twl@4b {
 		compatible = "ti,twl6040";
 		reg = <0x4b>;
 		interrupts = <GIC_SPI 119 IRQ_TYPE_LEVEL_HIGH>;		/* IRQ_SYS_2N cascaded to gic */
-		interrupt-parent = <&gic>;
 		ti,audpwron-gpio = <&gpio6 0 GPIO_ACTIVE_HIGH>;		/* gpio_160 */
 
 		vio-supply = <&v1v8>;
diff --git a/arch/arm/boot/dts/omap4-panda-common.dtsi b/arch/arm/boot/dts/omap4-panda-common.dtsi
index 1505135..7c15fb2 100644
--- a/arch/arm/boot/dts/omap4-panda-common.dtsi
+++ b/arch/arm/boot/dts/omap4-panda-common.dtsi
@@ -372,7 +372,6 @@
 		reg = <0x48>;
 		/* IRQ# = 7 */
 		interrupts = <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>; /* IRQ_SYS_1N cascaded to gic */
-		interrupt-parent = <&gic>;
 	};
 
 	twl6040: twl@4b {
@@ -384,7 +383,6 @@
 
 		/* IRQ# = 119 */
 		interrupts = <GIC_SPI 119 IRQ_TYPE_LEVEL_HIGH>; /* IRQ_SYS_2N cascaded to gic */
-		interrupt-parent = <&gic>;
 		ti,audpwron-gpio = <&gpio4 31 GPIO_ACTIVE_HIGH>;  /* gpio line 127 */
 
 		vio-supply = <&v1v8>;
@@ -479,17 +477,17 @@
 };
 
 &uart2 {
-	interrupts-extended = <&gic GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH
+	interrupts-extended = <&wakeupgen GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH
 			       &omap4_pmx_core OMAP4_UART2_RX>;
 };
 
 &uart3 {
-	interrupts-extended = <&gic GIC_SPI 74 IRQ_TYPE_LEVEL_HIGH
+	interrupts-extended = <&wakeupgen GIC_SPI 74 IRQ_TYPE_LEVEL_HIGH
 			       &omap4_pmx_core OMAP4_UART3_RX>;
 };
 
 &uart4 {
-	interrupts-extended = <&gic GIC_SPI 70 IRQ_TYPE_LEVEL_HIGH
+	interrupts-extended = <&wakeupgen GIC_SPI 70 IRQ_TYPE_LEVEL_HIGH
 			       &omap4_pmx_core OMAP4_UART4_RX>;
 };
 
diff --git a/arch/arm/boot/dts/omap4-sdp.dts b/arch/arm/boot/dts/omap4-sdp.dts
index 3e1da43..8aca8da 100644
--- a/arch/arm/boot/dts/omap4-sdp.dts
+++ b/arch/arm/boot/dts/omap4-sdp.dts
@@ -363,7 +363,6 @@
 		reg = <0x48>;
 		/* SPI = 0, IRQ# = 7, 4 = active high level-sensitive */
 		interrupts = <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>; /* IRQ_SYS_1N cascaded to gic */
-		interrupt-parent = <&gic>;
 	};
 
 	twl6040: twl@4b {
@@ -375,7 +374,6 @@
 
 		/* SPI = 0, IRQ# = 119, 4 = active high level-sensitive */
 		interrupts = <GIC_SPI 119 IRQ_TYPE_LEVEL_HIGH>; /* IRQ_SYS_2N cascaded to gic */
-		interrupt-parent = <&gic>;
 		ti,audpwron-gpio = <&gpio4 31 0>;  /* gpio line 127 */
 
 		vio-supply = <&v1v8>;
@@ -570,21 +568,21 @@
 };
 
 &uart2 {
-	interrupts-extended = <&gic GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH
+	interrupts-extended = <&wakeupgen GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH
 			       &omap4_pmx_core OMAP4_UART2_RX>;
 	pinctrl-names = "default";
 	pinctrl-0 = <&uart2_pins>;
 };
 
 &uart3 {
-	interrupts-extended = <&gic GIC_SPI 74 IRQ_TYPE_LEVEL_HIGH
+	interrupts-extended = <&wakeupgen GIC_SPI 74 IRQ_TYPE_LEVEL_HIGH
 			       &omap4_pmx_core OMAP4_UART3_RX>;
 	pinctrl-names = "default";
 	pinctrl-0 = <&uart3_pins>;
 };
 
 &uart4 {
-	interrupts-extended = <&gic GIC_SPI 70 IRQ_TYPE_LEVEL_HIGH
+	interrupts-extended = <&wakeupgen GIC_SPI 70 IRQ_TYPE_LEVEL_HIGH
 			       &omap4_pmx_core OMAP4_UART4_RX>;
 	pinctrl-names = "default";
 	pinctrl-0 = <&uart4_pins>;
diff --git a/arch/arm/boot/dts/omap4-var-som-om44.dtsi b/arch/arm/boot/dts/omap4-var-som-om44.dtsi
index 062701e..a4f1ba2 100644
--- a/arch/arm/boot/dts/omap4-var-som-om44.dtsi
+++ b/arch/arm/boot/dts/omap4-var-som-om44.dtsi
@@ -185,7 +185,6 @@
 		reg = <0x48>;
 		/* SPI = 0, IRQ# = 7, 4 = active high level-sensitive */
 		interrupts = <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>; /* IRQ_SYS_1N cascaded to gic */
-		interrupt-parent = <&gic>;
 	};
 
 	twl6040: twl@4b {
@@ -197,7 +196,6 @@
 
 		/* SPI = 0, IRQ# = 119, 4 = active high level-sensitive */
 		interrupts = <GIC_SPI 119 IRQ_TYPE_LEVEL_HIGH>; /* IRQ_SYS_2N cascaded to gic */
-		interrupt-parent = <&gic>;
 		ti,audpwron-gpio = <&gpio6 22 0>; /* gpio 182 */
 
 		vio-supply = <&v1v8>;
diff --git a/arch/arm/boot/dts/omap4.dtsi b/arch/arm/boot/dts/omap4.dtsi
index 074147c..f2091d1 100644
--- a/arch/arm/boot/dts/omap4.dtsi
+++ b/arch/arm/boot/dts/omap4.dtsi
@@ -14,7 +14,7 @@
 
 / {
 	compatible = "ti,omap4430", "ti,omap4";
-	interrupt-parent = <&gic>;
+	interrupt-parent = <&wakeupgen>;
 
 	aliases {
 		i2c0 = &i2c1;
@@ -56,6 +56,7 @@
 		#interrupt-cells = <3>;
 		reg = <0x48241000 0x1000>,
 		      <0x48240100 0x0100>;
+		interrupt-parent = <&gic>;
 	};
 
 	L2: l2-cache-controller@48242000 {
@@ -70,6 +71,15 @@
 		clocks = <&mpu_periphclk>;
 		reg = <0x48240600 0x20>;
 		interrupts = <GIC_PPI 13 (GIC_CPU_MASK_RAW(3) | IRQ_TYPE_LEVEL_HIGH)>;
+		interrupt-parent = <&gic>;
+	};
+
+	wakeupgen: interrupt-controller@48281000 {
+		compatible = "ti,omap4-wugen-mpu";
+		interrupt-controller;
+		#interrupt-cells = <3>;
+		reg = <0x48281000 0x1000>;
+		interrupt-parent = <&gic>;
 	};
 
 	/*
@@ -223,8 +233,8 @@
 				     <GIC_SPI 14 IRQ_TYPE_LEVEL_HIGH>,
 				     <GIC_SPI 15 IRQ_TYPE_LEVEL_HIGH>;
 			#dma-cells = <1>;
-			#dma-channels = <32>;
-			#dma-requests = <127>;
+			dma-channels = <32>;
+			dma-requests = <127>;
 		};
 
 		gpio1: gpio@4a310000 {
@@ -319,7 +329,7 @@
 		uart2: serial@4806c000 {
 			compatible = "ti,omap4-uart";
 			reg = <0x4806c000 0x100>;
-			interrupts-extended = <&gic GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH>;
+			interrupts = <GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH>;
 			ti,hwmods = "uart2";
 			clock-frequency = <48000000>;
 		};
@@ -327,7 +337,7 @@
 		uart3: serial@48020000 {
 			compatible = "ti,omap4-uart";
 			reg = <0x48020000 0x100>;
-			interrupts-extended = <&gic GIC_SPI 74 IRQ_TYPE_LEVEL_HIGH>;
+			interrupts = <GIC_SPI 74 IRQ_TYPE_LEVEL_HIGH>;
 			ti,hwmods = "uart3";
 			clock-frequency = <48000000>;
 		};
@@ -335,7 +345,7 @@
 		uart4: serial@4806e000 {
 			compatible = "ti,omap4-uart";
 			reg = <0x4806e000 0x100>;
-			interrupts-extended = <&gic GIC_SPI 70 IRQ_TYPE_LEVEL_HIGH>;
+			interrupts = <GIC_SPI 70 IRQ_TYPE_LEVEL_HIGH>;
 			ti,hwmods = "uart4";
 			clock-frequency = <48000000>;
 		};
diff --git a/arch/arm/boot/dts/omap5-cm-t54.dts b/arch/arm/boot/dts/omap5-cm-t54.dts
index b54b271..61ad2ea 100644
--- a/arch/arm/boot/dts/omap5-cm-t54.dts
+++ b/arch/arm/boot/dts/omap5-cm-t54.dts
@@ -412,7 +412,6 @@
 	palmas: palmas@48 {
 		compatible = "ti,palmas";
 		interrupts = <GIC_SPI 7 IRQ_TYPE_NONE>; /* IRQ_SYS_1N */
-		interrupt-parent = <&gic>;
 		reg = <0x48>;
 		interrupt-controller;
 		#interrupt-cells = <2>;
diff --git a/arch/arm/boot/dts/omap5-core-thermal.dtsi b/arch/arm/boot/dts/omap5-core-thermal.dtsi
index 19212ac..de8a3d4 100644
--- a/arch/arm/boot/dts/omap5-core-thermal.dtsi
+++ b/arch/arm/boot/dts/omap5-core-thermal.dtsi
@@ -13,7 +13,7 @@
 
 core_thermal: core_thermal {
 	polling-delay-passive = <250>; /* milliseconds */
-	polling-delay = <1000>; /* milliseconds */
+	polling-delay = <500>; /* milliseconds */
 
 			/* sensor       ID */
 	thermal-sensors = <&bandgap     2>;
diff --git a/arch/arm/boot/dts/omap5-gpu-thermal.dtsi b/arch/arm/boot/dts/omap5-gpu-thermal.dtsi
index 1b87aca..bc3090f 100644
--- a/arch/arm/boot/dts/omap5-gpu-thermal.dtsi
+++ b/arch/arm/boot/dts/omap5-gpu-thermal.dtsi
@@ -13,7 +13,7 @@
 
 gpu_thermal: gpu_thermal {
 	polling-delay-passive = <250>; /* milliseconds */
-	polling-delay = <1000>; /* milliseconds */
+	polling-delay = <500>; /* milliseconds */
 
 			/* sensor       ID */
 	thermal-sensors = <&bandgap     1>;
diff --git a/arch/arm/boot/dts/omap5-uevm.dts b/arch/arm/boot/dts/omap5-uevm.dts
index 159720d..74777a6 100644
--- a/arch/arm/boot/dts/omap5-uevm.dts
+++ b/arch/arm/boot/dts/omap5-uevm.dts
@@ -311,7 +311,6 @@
 	palmas: palmas@48 {
 		compatible = "ti,palmas";
 		interrupts = <GIC_SPI 7 IRQ_TYPE_NONE>; /* IRQ_SYS_1N */
-		interrupt-parent = <&gic>;
 		reg = <0x48>;
 		interrupt-controller;
 		#interrupt-cells = <2>;
@@ -521,7 +520,6 @@
 		pinctrl-0 = <&twl6040_pins>;
 
 		interrupts = <GIC_SPI 119 IRQ_TYPE_NONE>; /* IRQ_SYS_2N cascaded to gic */
-		interrupt-parent = <&gic>;
 		ti,audpwron-gpio = <&gpio5 13 0>;  /* gpio line 141 */
 
 		vio-supply = <&smps7_reg>;
diff --git a/arch/arm/boot/dts/omap5.dtsi b/arch/arm/boot/dts/omap5.dtsi
index b321fdf..77b5f70d 100644
--- a/arch/arm/boot/dts/omap5.dtsi
+++ b/arch/arm/boot/dts/omap5.dtsi
@@ -18,7 +18,7 @@
 	#size-cells = <1>;
 
 	compatible = "ti,omap5";
-	interrupt-parent = <&gic>;
+	interrupt-parent = <&wakeupgen>;
 
 	aliases {
 		i2c0 = &i2c1;
@@ -79,6 +79,7 @@
 			     <GIC_PPI 14 (GIC_CPU_MASK_RAW(3) | IRQ_TYPE_LEVEL_LOW)>,
 			     <GIC_PPI 11 (GIC_CPU_MASK_RAW(3) | IRQ_TYPE_LEVEL_LOW)>,
 			     <GIC_PPI 10 (GIC_CPU_MASK_RAW(3) | IRQ_TYPE_LEVEL_LOW)>;
+		interrupt-parent = <&gic>;
 	};
 
 	pmu {
@@ -95,6 +96,15 @@
 		      <0x48212000 0x1000>,
 		      <0x48214000 0x2000>,
 		      <0x48216000 0x2000>;
+		interrupt-parent = <&gic>;
+	};
+
+	wakeupgen: interrupt-controller@48281000 {
+		compatible = "ti,omap5-wugen-mpu", "ti,omap4-wugen-mpu";
+		interrupt-controller;
+		#interrupt-cells = <3>;
+		reg = <0x48281000 0x1000>;
+		interrupt-parent = <&gic>;
 	};
 
 	/*
@@ -238,8 +248,8 @@
 				     <GIC_SPI 14 IRQ_TYPE_LEVEL_HIGH>,
 				     <GIC_SPI 15 IRQ_TYPE_LEVEL_HIGH>;
 			#dma-cells = <1>;
-			#dma-channels = <32>;
-			#dma-requests = <127>;
+			dma-channels = <32>;
+			dma-requests = <127>;
 		};
 
 		gpio1: gpio@4ae10000 {
@@ -458,7 +468,7 @@
 		uart1: serial@4806a000 {
 			compatible = "ti,omap4-uart";
 			reg = <0x4806a000 0x100>;
-			interrupts-extended = <&gic GIC_SPI 72 IRQ_TYPE_LEVEL_HIGH>;
+			interrupts = <GIC_SPI 72 IRQ_TYPE_LEVEL_HIGH>;
 			ti,hwmods = "uart1";
 			clock-frequency = <48000000>;
 		};
@@ -466,7 +476,7 @@
 		uart2: serial@4806c000 {
 			compatible = "ti,omap4-uart";
 			reg = <0x4806c000 0x100>;
-			interrupts-extended = <&gic GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH>;
+			interrupts = <GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH>;
 			ti,hwmods = "uart2";
 			clock-frequency = <48000000>;
 		};
@@ -474,7 +484,7 @@
 		uart3: serial@48020000 {
 			compatible = "ti,omap4-uart";
 			reg = <0x48020000 0x100>;
-			interrupts-extended = <&gic GIC_SPI 74 IRQ_TYPE_LEVEL_HIGH>;
+			interrupts = <GIC_SPI 74 IRQ_TYPE_LEVEL_HIGH>;
 			ti,hwmods = "uart3";
 			clock-frequency = <48000000>;
 		};
@@ -482,7 +492,7 @@
 		uart4: serial@4806e000 {
 			compatible = "ti,omap4-uart";
 			reg = <0x4806e000 0x100>;
-			interrupts-extended = <&gic GIC_SPI 70 IRQ_TYPE_LEVEL_HIGH>;
+			interrupts = <GIC_SPI 70 IRQ_TYPE_LEVEL_HIGH>;
 			ti,hwmods = "uart4";
 			clock-frequency = <48000000>;
 		};
@@ -490,7 +500,7 @@
 		uart5: serial@48066000 {
 			compatible = "ti,omap4-uart";
 			reg = <0x48066000 0x100>;
-			interrupts-extended = <&gic GIC_SPI 105 IRQ_TYPE_LEVEL_HIGH>;
+			interrupts = <GIC_SPI 105 IRQ_TYPE_LEVEL_HIGH>;
 			ti,hwmods = "uart5";
 			clock-frequency = <48000000>;
 		};
@@ -498,7 +508,7 @@
 		uart6: serial@48068000 {
 			compatible = "ti,omap4-uart";
 			reg = <0x48068000 0x100>;
-			interrupts-extended = <&gic GIC_SPI 106 IRQ_TYPE_LEVEL_HIGH>;
+			interrupts = <GIC_SPI 106 IRQ_TYPE_LEVEL_HIGH>;
 			ti,hwmods = "uart6";
 			clock-frequency = <48000000>;
 		};
@@ -883,14 +893,12 @@
 			usbhsohci: ohci@4a064800 {
 				compatible = "ti,ohci-omap3";
 				reg = <0x4a064800 0x400>;
-				interrupt-parent = <&gic>;
 				interrupts = <GIC_SPI 76 IRQ_TYPE_LEVEL_HIGH>;
 			};
 
 			usbhsehci: ehci@4a064c00 {
 				compatible = "ti,ehci-omap";
 				reg = <0x4a064c00 0x400>;
-				interrupt-parent = <&gic>;
 				interrupts = <GIC_SPI 77 IRQ_TYPE_LEVEL_HIGH>;
 			};
 		};
@@ -929,8 +937,8 @@
 				      <0x4A096800 0x40>; /* pll_ctrl */
 				reg-names = "phy_rx", "phy_tx", "pll_ctrl";
 				ctrl-module = <&omap_control_sata>;
-				clocks = <&sys_clkin>;
-				clock-names = "sysclk";
+				clocks = <&sys_clkin>, <&sata_ref_clk>;
+				clock-names = "sysclk", "refclk";
 				#phy-cells = <0>;
 			};
 		};
@@ -1079,4 +1087,8 @@
 	};
 };
 
+&cpu_thermal {
+	polling-delay = <500>; /* milliseconds */
+};
+
 /include/ "omap54xx-clocks.dtsi"
diff --git a/arch/arm/boot/dts/omap54xx-clocks.dtsi b/arch/arm/boot/dts/omap54xx-clocks.dtsi
index 58c2746..83b425f 100644
--- a/arch/arm/boot/dts/omap54xx-clocks.dtsi
+++ b/arch/arm/boot/dts/omap54xx-clocks.dtsi
@@ -167,10 +167,18 @@
 		ti,index-starts-at-one;
 	};
 
+	dpll_core_byp_mux: dpll_core_byp_mux {
+		#clock-cells = <0>;
+		compatible = "ti,mux-clock";
+		clocks = <&sys_clkin>, <&dpll_abe_m3x2_ck>;
+		ti,bit-shift = <23>;
+		reg = <0x012c>;
+	};
+
 	dpll_core_ck: dpll_core_ck {
 		#clock-cells = <0>;
 		compatible = "ti,omap4-dpll-core-clock";
-		clocks = <&sys_clkin>, <&dpll_abe_m3x2_ck>;
+		clocks = <&sys_clkin>, <&dpll_core_byp_mux>;
 		reg = <0x0120>, <0x0124>, <0x012c>, <0x0128>;
 	};
 
@@ -294,10 +302,18 @@
 		clock-div = <1>;
 	};
 
+	dpll_iva_byp_mux: dpll_iva_byp_mux {
+		#clock-cells = <0>;
+		compatible = "ti,mux-clock";
+		clocks = <&sys_clkin>, <&iva_dpll_hs_clk_div>;
+		ti,bit-shift = <23>;
+		reg = <0x01ac>;
+	};
+
 	dpll_iva_ck: dpll_iva_ck {
 		#clock-cells = <0>;
 		compatible = "ti,omap4-dpll-clock";
-		clocks = <&sys_clkin>, <&iva_dpll_hs_clk_div>;
+		clocks = <&sys_clkin>, <&dpll_iva_byp_mux>;
 		reg = <0x01a0>, <0x01a4>, <0x01ac>, <0x01a8>;
 	};
 
@@ -599,10 +615,19 @@
 	};
 };
 &cm_core_clocks {
+
+	dpll_per_byp_mux: dpll_per_byp_mux {
+		#clock-cells = <0>;
+		compatible = "ti,mux-clock";
+		clocks = <&sys_clkin>, <&per_dpll_hs_clk_div>;
+		ti,bit-shift = <23>;
+		reg = <0x014c>;
+	};
+
 	dpll_per_ck: dpll_per_ck {
 		#clock-cells = <0>;
 		compatible = "ti,omap4-dpll-clock";
-		clocks = <&sys_clkin>, <&per_dpll_hs_clk_div>;
+		clocks = <&sys_clkin>, <&dpll_per_byp_mux>;
 		reg = <0x0140>, <0x0144>, <0x014c>, <0x0148>;
 	};
 
@@ -714,10 +739,18 @@
 		ti,index-starts-at-one;
 	};
 
+	dpll_usb_byp_mux: dpll_usb_byp_mux {
+		#clock-cells = <0>;
+		compatible = "ti,mux-clock";
+		clocks = <&sys_clkin>, <&usb_dpll_hs_clk_div>;
+		ti,bit-shift = <23>;
+		reg = <0x018c>;
+	};
+
 	dpll_usb_ck: dpll_usb_ck {
 		#clock-cells = <0>;
 		compatible = "ti,omap4-dpll-j-type-clock";
-		clocks = <&sys_clkin>, <&usb_dpll_hs_clk_div>;
+		clocks = <&sys_clkin>, <&dpll_usb_byp_mux>;
 		reg = <0x0180>, <0x0184>, <0x018c>, <0x0188>;
 	};
 
diff --git a/arch/arm/boot/dts/rk3288.dtsi b/arch/arm/boot/dts/rk3288.dtsi
index d771f68..eccc78d 100644
--- a/arch/arm/boot/dts/rk3288.dtsi
+++ b/arch/arm/boot/dts/rk3288.dtsi
@@ -411,6 +411,7 @@
 			"mac_clk_rx", "mac_clk_tx",
 			"clk_mac_ref", "clk_mac_refout",
 			"aclk_mac", "pclk_mac";
+		status = "disabled";
 	};
 
 	usb_host0_ehci: usb@ff500000 {
diff --git a/arch/arm/boot/dts/sama5d3.dtsi b/arch/arm/boot/dts/sama5d3.dtsi
index 261311b..367af53 100644
--- a/arch/arm/boot/dts/sama5d3.dtsi
+++ b/arch/arm/boot/dts/sama5d3.dtsi
@@ -1248,7 +1248,6 @@
 				atmel,watchdog-type = "hardware";
 				atmel,reset-type = "all";
 				atmel,dbg-halt;
-				atmel,idle-halt;
 				status = "disabled";
 			};
 
@@ -1416,7 +1415,7 @@
 			compatible = "atmel,at91sam9g45-ehci", "usb-ehci";
 			reg = <0x00700000 0x100000>;
 			interrupts = <32 IRQ_TYPE_LEVEL_HIGH 2>;
-			clocks = <&usb>, <&uhphs_clk>, <&uhpck>;
+			clocks = <&utmi>, <&uhphs_clk>, <&uhpck>;
 			clock-names = "usb_clk", "ehci_clk", "uhpck";
 			status = "disabled";
 		};
diff --git a/arch/arm/boot/dts/sama5d4.dtsi b/arch/arm/boot/dts/sama5d4.dtsi
index d986b41..4303874 100644
--- a/arch/arm/boot/dts/sama5d4.dtsi
+++ b/arch/arm/boot/dts/sama5d4.dtsi
@@ -66,6 +66,7 @@
 		gpio4 = &pioE;
 		tcb0 = &tcb0;
 		tcb1 = &tcb1;
+		i2c0 = &i2c0;
 		i2c2 = &i2c2;
 	};
 	cpus {
@@ -259,7 +260,7 @@
 			compatible = "atmel,at91sam9g45-ehci", "usb-ehci";
 			reg = <0x00600000 0x100000>;
 			interrupts = <46 IRQ_TYPE_LEVEL_HIGH 2>;
-			clocks = <&usb>, <&uhphs_clk>, <&uhpck>;
+			clocks = <&utmi>, <&uhphs_clk>, <&uhpck>;
 			clock-names = "usb_clk", "ehci_clk", "uhpck";
 			status = "disabled";
 		};
@@ -461,8 +462,8 @@
 
 					lcdck: lcdck {
 						#clock-cells = <0>;
-						reg = <4>;
-						clocks = <&smd>;
+						reg = <3>;
+						clocks = <&mck>;
 					};
 
 					smdck: smdck {
@@ -770,7 +771,7 @@
 						reg = <50>;
 					};
 
-					lcd_clk: lcd_clk {
+					lcdc_clk: lcdc_clk {
 						#clock-cells = <0>;
 						reg = <51>;
 					};
diff --git a/arch/arm/boot/dts/socfpga.dtsi b/arch/arm/boot/dts/socfpga.dtsi
index 252c3d1..d9176e6 100644
--- a/arch/arm/boot/dts/socfpga.dtsi
+++ b/arch/arm/boot/dts/socfpga.dtsi
@@ -660,7 +660,7 @@
 			#address-cells = <1>;
 			#size-cells = <0>;
 			reg = <0xfff01000 0x1000>;
-			interrupts = <0 156 4>;
+			interrupts = <0 155 4>;
 			num-cs = <4>;
 			clocks = <&spi_m_clk>;
 			status = "disabled";
@@ -713,6 +713,9 @@
 			reg-shift = <2>;
 			reg-io-width = <4>;
 			clocks = <&l4_sp_clk>;
+			dmas = <&pdma 28>,
+			       <&pdma 29>;
+			dma-names = "tx", "rx";
 		};
 
 		uart1: serial1@ffc03000 {
@@ -722,6 +725,9 @@
 			reg-shift = <2>;
 			reg-io-width = <4>;
 			clocks = <&l4_sp_clk>;
+			dmas = <&pdma 30>,
+			       <&pdma 31>;
+			dma-names = "tx", "rx";
 		};
 
 		rst: rstmgr@ffd05000 {
diff --git a/arch/arm/boot/dts/stih416.dtsi b/arch/arm/boot/dts/stih416.dtsi
index ea28eba..eeb7afe 100644
--- a/arch/arm/boot/dts/stih416.dtsi
+++ b/arch/arm/boot/dts/stih416.dtsi
@@ -10,7 +10,7 @@
 #include "stih416-clock.dtsi"
 #include "stih416-pinctrl.dtsi"
 
-#include <dt-bindings/phy/phy-miphy365x.h>
+#include <dt-bindings/phy/phy.h>
 #include <dt-bindings/interrupt-controller/arm-gic.h>
 #include <dt-bindings/reset-controller/stih416-resets.h>
 / {
@@ -306,7 +306,7 @@
 			reg             = <0xfe380000 0x1000>;
 			interrupts      = <GIC_SPI 157 IRQ_TYPE_NONE>;
 			interrupt-names = "hostc";
-			phys	        = <&phy_port0 MIPHY_TYPE_SATA>;
+			phys	        = <&phy_port0 PHY_TYPE_SATA>;
 			phy-names       = "sata-phy";
 			resets	        = <&powerdown STIH416_SATA0_POWERDOWN>,
 					  <&softreset STIH416_SATA0_SOFTRESET>;
diff --git a/arch/arm/boot/dts/sun4i-a10-olinuxino-lime.dts b/arch/arm/boot/dts/sun4i-a10-olinuxino-lime.dts
index ab7891c..75742f8 100644
--- a/arch/arm/boot/dts/sun4i-a10-olinuxino-lime.dts
+++ b/arch/arm/boot/dts/sun4i-a10-olinuxino-lime.dts
@@ -56,6 +56,22 @@
 	model = "Olimex A10-OLinuXino-LIME";
 	compatible = "olimex,a10-olinuxino-lime", "allwinner,sun4i-a10";
 
+	cpus {
+		cpu0: cpu@0 {
+			/*
+			 * The A10-Lime is known to be unstable
+			 * when running at 1008 MHz
+			 */
+			operating-points = <
+				/* kHz    uV */
+				912000  1350000
+				864000  1300000
+				624000  1250000
+				>;
+			cooling-max-level = <2>;
+		};
+	};
+
 	soc@01c00000 {
 		emac: ethernet@01c0b000 {
 			pinctrl-names = "default";
diff --git a/arch/arm/boot/dts/sun4i-a10.dtsi b/arch/arm/boot/dts/sun4i-a10.dtsi
index 5c29258..eebb785 100644
--- a/arch/arm/boot/dts/sun4i-a10.dtsi
+++ b/arch/arm/boot/dts/sun4i-a10.dtsi
@@ -75,7 +75,6 @@
 			clock-latency = <244144>; /* 8 32k periods */
 			operating-points = <
 				/* kHz    uV */
-				1056000 1500000
 				1008000 1400000
 				912000  1350000
 				864000  1300000
@@ -83,7 +82,7 @@
 				>;
 			#cooling-cells = <2>;
 			cooling-min-level = <0>;
-			cooling-max-level = <4>;
+			cooling-max-level = <3>;
 		};
 	};
 
diff --git a/arch/arm/boot/dts/sun5i-a13.dtsi b/arch/arm/boot/dts/sun5i-a13.dtsi
index f8818f1..883cb4873 100644
--- a/arch/arm/boot/dts/sun5i-a13.dtsi
+++ b/arch/arm/boot/dts/sun5i-a13.dtsi
@@ -47,7 +47,6 @@
 			clock-latency = <244144>; /* 8 32k periods */
 			operating-points = <
 				/* kHz    uV */
-				1104000	1500000
 				1008000 1400000
 				912000  1350000
 				864000  1300000
@@ -57,7 +56,7 @@
 				>;
 			#cooling-cells = <2>;
 			cooling-min-level = <0>;
-			cooling-max-level = <6>;
+			cooling-max-level = <5>;
 		};
 	};
 
diff --git a/arch/arm/boot/dts/sun7i-a20.dtsi b/arch/arm/boot/dts/sun7i-a20.dtsi
index 3a8530b..fdd1817 100644
--- a/arch/arm/boot/dts/sun7i-a20.dtsi
+++ b/arch/arm/boot/dts/sun7i-a20.dtsi
@@ -105,7 +105,6 @@
 			clock-latency = <244144>; /* 8 32k periods */
 			operating-points = <
 				/* kHz    uV */
-				1008000 1450000
 				960000  1400000
 				912000  1400000
 				864000  1300000
@@ -116,7 +115,7 @@
 				>;
 			#cooling-cells = <2>;
 			cooling-min-level = <0>;
-			cooling-max-level = <7>;
+			cooling-max-level = <6>;
 		};
 
 		cpu@1 {
diff --git a/arch/arm/boot/dts/tegra114.dtsi b/arch/arm/boot/dts/tegra114.dtsi
index 4296b53..f58a3d9 100644
--- a/arch/arm/boot/dts/tegra114.dtsi
+++ b/arch/arm/boot/dts/tegra114.dtsi
@@ -8,7 +8,7 @@
 
 / {
 	compatible = "nvidia,tegra114";
-	interrupt-parent = <&gic>;
+	interrupt-parent = <&lic>;
 
 	host1x@50000000 {
 		compatible = "nvidia,tegra114-host1x", "simple-bus";
@@ -134,6 +134,19 @@
 		      <0x50046000 0x2000>;
 		interrupts = <GIC_PPI 9
 			(GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>;
+		interrupt-parent = <&gic>;
+	};
+
+	lic: interrupt-controller@60004000 {
+		compatible = "nvidia,tegra114-ictlr", "nvidia,tegra30-ictlr";
+		reg = <0x60004000 0x100>,
+		      <0x60004100 0x50>,
+		      <0x60004200 0x50>,
+		      <0x60004300 0x50>,
+		      <0x60004400 0x50>;
+		interrupt-controller;
+		#interrupt-cells = <3>;
+		interrupt-parent = <&gic>;
 	};
 
 	timer@60005000 {
@@ -766,5 +779,6 @@
 				(GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
 			<GIC_PPI 10
 				(GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>;
+		interrupt-parent = <&gic>;
 	};
 };
diff --git a/arch/arm/boot/dts/tegra124.dtsi b/arch/arm/boot/dts/tegra124.dtsi
index 4be06c6..db85695 100644
--- a/arch/arm/boot/dts/tegra124.dtsi
+++ b/arch/arm/boot/dts/tegra124.dtsi
@@ -10,7 +10,7 @@
 
 / {
 	compatible = "nvidia,tegra124";
-	interrupt-parent = <&gic>;
+	interrupt-parent = <&lic>;
 	#address-cells = <2>;
 	#size-cells = <2>;
 
@@ -173,6 +173,7 @@
 		      <0x0 0x50046000 0x0 0x2000>;
 		interrupts = <GIC_PPI 9
 			(GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>;
+		interrupt-parent = <&gic>;
 	};
 
 	gpu@0,57000000 {
@@ -190,6 +191,18 @@
 		status = "disabled";
 	};
 
+	lic: interrupt-controller@60004000 {
+		compatible = "nvidia,tegra124-ictlr", "nvidia,tegra30-ictlr";
+		reg = <0x0 0x60004000 0x0 0x100>,
+		      <0x0 0x60004100 0x0 0x100>,
+		      <0x0 0x60004200 0x0 0x100>,
+		      <0x0 0x60004300 0x0 0x100>,
+		      <0x0 0x60004400 0x0 0x100>;
+		interrupt-controller;
+		#interrupt-cells = <3>;
+		interrupt-parent = <&gic>;
+	};
+
 	timer@0,60005000 {
 		compatible = "nvidia,tegra124-timer", "nvidia,tegra20-timer";
 		reg = <0x0 0x60005000 0x0 0x400>;
@@ -955,5 +968,6 @@
 				(GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
 			     <GIC_PPI 10
 				(GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>;
+		interrupt-parent = <&gic>;
 	};
 };
diff --git a/arch/arm/boot/dts/tegra20.dtsi b/arch/arm/boot/dts/tegra20.dtsi
index e5527f7..adf6b04 100644
--- a/arch/arm/boot/dts/tegra20.dtsi
+++ b/arch/arm/boot/dts/tegra20.dtsi
@@ -7,7 +7,7 @@
 
 / {
 	compatible = "nvidia,tegra20";
-	interrupt-parent = <&intc>;
+	interrupt-parent = <&lic>;
 
 	host1x@50000000 {
 		compatible = "nvidia,tegra20-host1x", "simple-bus";
@@ -142,6 +142,7 @@
 
 	timer@50040600 {
 		compatible = "arm,cortex-a9-twd-timer";
+		interrupt-parent = <&intc>;
 		reg = <0x50040600 0x20>;
 		interrupts = <GIC_PPI 13
 			(GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_HIGH)>;
@@ -154,6 +155,7 @@
 		       0x50040100 0x0100>;
 		interrupt-controller;
 		#interrupt-cells = <3>;
+		interrupt-parent = <&intc>;
 	};
 
 	cache-controller@50043000 {
@@ -165,6 +167,17 @@
 		cache-level = <2>;
 	};
 
+	lic: interrupt-controller@60004000 {
+		compatible = "nvidia,tegra20-ictlr";
+		reg = <0x60004000 0x100>,
+		      <0x60004100 0x50>,
+		      <0x60004200 0x50>,
+		      <0x60004300 0x50>;
+		interrupt-controller;
+		#interrupt-cells = <3>;
+		interrupt-parent = <&intc>;
+	};
+
 	timer@60005000 {
 		compatible = "nvidia,tegra20-timer";
 		reg = <0x60005000 0x60>;
diff --git a/arch/arm/boot/dts/tegra30.dtsi b/arch/arm/boot/dts/tegra30.dtsi
index db4810d..60e205a 100644
--- a/arch/arm/boot/dts/tegra30.dtsi
+++ b/arch/arm/boot/dts/tegra30.dtsi
@@ -8,7 +8,7 @@
 
 / {
 	compatible = "nvidia,tegra30";
-	interrupt-parent = <&intc>;
+	interrupt-parent = <&lic>;
 
 	pcie-controller@00003000 {
 		compatible = "nvidia,tegra30-pcie";
@@ -228,6 +228,7 @@
 	timer@50040600 {
 		compatible = "arm,cortex-a9-twd-timer";
 		reg = <0x50040600 0x20>;
+		interrupt-parent = <&intc>;
 		interrupts = <GIC_PPI 13
 			(GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>;
 		clocks = <&tegra_car TEGRA30_CLK_TWD>;
@@ -239,6 +240,7 @@
 		       0x50040100 0x0100>;
 		interrupt-controller;
 		#interrupt-cells = <3>;
+		interrupt-parent = <&intc>;
 	};
 
 	cache-controller@50043000 {
@@ -250,6 +252,18 @@
 		cache-level = <2>;
 	};
 
+	lic: interrupt-controller@60004000 {
+		compatible = "nvidia,tegra30-ictlr";
+		reg = <0x60004000 0x100>,
+		      <0x60004100 0x50>,
+		      <0x60004200 0x50>,
+		      <0x60004300 0x50>,
+		      <0x60004400 0x50>;
+		interrupt-controller;
+		#interrupt-cells = <3>;
+		interrupt-parent = <&intc>;
+	};
+
 	timer@60005000 {
 		compatible = "nvidia,tegra30-timer", "nvidia,tegra20-timer";
 		reg = <0x60005000 0x400>;
diff --git a/arch/arm/common/bL_switcher.c b/arch/arm/common/bL_switcher.c
index 6eaddc4..37dc0fe 100644
--- a/arch/arm/common/bL_switcher.c
+++ b/arch/arm/common/bL_switcher.c
@@ -151,8 +151,6 @@ static int bL_switch_to(unsigned int new_cluster_id)
 	unsigned int mpidr, this_cpu, that_cpu;
 	unsigned int ob_mpidr, ob_cpu, ob_cluster, ib_mpidr, ib_cpu, ib_cluster;
 	struct completion inbound_alive;
-	struct tick_device *tdev;
-	enum clock_event_mode tdev_mode;
 	long volatile *handshake_ptr;
 	int ipi_nr, ret;
 
@@ -219,13 +217,7 @@ static int bL_switch_to(unsigned int new_cluster_id)
 	/* redirect GIC's SGIs to our counterpart */
 	gic_migrate_target(bL_gic_id[ib_cpu][ib_cluster]);
 
-	tdev = tick_get_device(this_cpu);
-	if (tdev && !cpumask_equal(tdev->evtdev->cpumask, cpumask_of(this_cpu)))
-		tdev = NULL;
-	if (tdev) {
-		tdev_mode = tdev->evtdev->mode;
-		clockevents_set_mode(tdev->evtdev, CLOCK_EVT_MODE_SHUTDOWN);
-	}
+	tick_suspend_local();
 
 	ret = cpu_pm_enter();
 
@@ -251,11 +243,7 @@ static int bL_switch_to(unsigned int new_cluster_id)
 
 	ret = cpu_pm_exit();
 
-	if (tdev) {
-		clockevents_set_mode(tdev->evtdev, tdev_mode);
-		clockevents_program_event(tdev->evtdev,
-					  tdev->evtdev->next_event, 1);
-	}
+	tick_resume_local();
 
 	trace_cpu_migrate_finish(ktime_get_real_ns(), ib_mpidr);
 	local_fiq_enable();
diff --git a/arch/arm/configs/at91_dt_defconfig b/arch/arm/configs/at91_dt_defconfig
index f2670f6..811e72b 100644
--- a/arch/arm/configs/at91_dt_defconfig
+++ b/arch/arm/configs/at91_dt_defconfig
@@ -70,6 +70,7 @@ CONFIG_SCSI=y
 CONFIG_BLK_DEV_SD=y
 # CONFIG_SCSI_LOWLEVEL is not set
 CONFIG_NETDEVICES=y
+CONFIG_ARM_AT91_ETHER=y
 CONFIG_MACB=y
 # CONFIG_NET_VENDOR_BROADCOM is not set
 CONFIG_DM9000=y
diff --git a/arch/arm/configs/multi_v7_defconfig b/arch/arm/configs/multi_v7_defconfig
index e8a4c95..06075b6 100644
--- a/arch/arm/configs/multi_v7_defconfig
+++ b/arch/arm/configs/multi_v7_defconfig
@@ -62,6 +62,17 @@ CONFIG_MACH_SPEAR1340=y
 CONFIG_ARCH_STI=y
 CONFIG_ARCH_EXYNOS=y
 CONFIG_EXYNOS5420_MCPM=y
+CONFIG_ARCH_SHMOBILE_MULTI=y
+CONFIG_ARCH_EMEV2=y
+CONFIG_ARCH_R7S72100=y
+CONFIG_ARCH_R8A73A4=y
+CONFIG_ARCH_R8A7740=y
+CONFIG_ARCH_R8A7779=y
+CONFIG_ARCH_R8A7790=y
+CONFIG_ARCH_R8A7791=y
+CONFIG_ARCH_R8A7794=y
+CONFIG_ARCH_SH73A0=y
+CONFIG_MACH_MARZEN=y
 CONFIG_ARCH_SUNXI=y
 CONFIG_ARCH_SIRF=y
 CONFIG_ARCH_TEGRA=y
@@ -84,9 +95,11 @@ CONFIG_PCI_KEYSTONE=y
 CONFIG_PCI_MSI=y
 CONFIG_PCI_MVEBU=y
 CONFIG_PCI_TEGRA=y
+CONFIG_PCI_RCAR_GEN2=y
+CONFIG_PCI_RCAR_GEN2_PCIE=y
 CONFIG_PCIEPORTBUS=y
 CONFIG_SMP=y
-CONFIG_NR_CPUS=8
+CONFIG_NR_CPUS=16
 CONFIG_HIGHPTE=y
 CONFIG_CMA=y
 CONFIG_ARM_APPENDED_DTB=y
@@ -130,6 +143,7 @@ CONFIG_DEVTMPFS_MOUNT=y
 CONFIG_DMA_CMA=y
 CONFIG_CMA_SIZE_MBYTES=64
 CONFIG_OMAP_OCP2SCP=y
+CONFIG_SIMPLE_PM_BUS=y
 CONFIG_MTD=y
 CONFIG_MTD_CMDLINE_PARTS=y
 CONFIG_MTD_BLOCK=y
@@ -157,6 +171,7 @@ CONFIG_AHCI_SUNXI=y
 CONFIG_AHCI_TEGRA=y
 CONFIG_SATA_HIGHBANK=y
 CONFIG_SATA_MV=y
+CONFIG_SATA_RCAR=y
 CONFIG_NETDEVICES=y
 CONFIG_HIX5HD2_GMAC=y
 CONFIG_SUN4I_EMAC=y
@@ -167,14 +182,17 @@ CONFIG_MV643XX_ETH=y
 CONFIG_MVNETA=y
 CONFIG_KS8851=y
 CONFIG_R8169=y
+CONFIG_SH_ETH=y
 CONFIG_SMSC911X=y
 CONFIG_STMMAC_ETH=y
 CONFIG_TI_CPSW=y
 CONFIG_XILINX_EMACLITE=y
 CONFIG_AT803X_PHY=y
 CONFIG_MARVELL_PHY=y
+CONFIG_SMSC_PHY=y
 CONFIG_BROADCOM_PHY=y
 CONFIG_ICPLUS_PHY=y
+CONFIG_MICREL_PHY=y
 CONFIG_USB_PEGASUS=y
 CONFIG_USB_USBNET=y
 CONFIG_USB_NET_SMSC75XX=y
@@ -192,15 +210,18 @@ CONFIG_KEYBOARD_CROS_EC=y
 CONFIG_MOUSE_PS2_ELANTECH=y
 CONFIG_INPUT_TOUCHSCREEN=y
 CONFIG_TOUCHSCREEN_ATMEL_MXT=y
+CONFIG_TOUCHSCREEN_ST1232=m
 CONFIG_TOUCHSCREEN_STMPE=y
 CONFIG_TOUCHSCREEN_SUN4I=y
 CONFIG_INPUT_MISC=y
 CONFIG_INPUT_MPU3050=y
 CONFIG_INPUT_AXP20X_PEK=y
+CONFIG_INPUT_ADXL34X=m
 CONFIG_SERIO_AMBAKMI=y
 CONFIG_SERIAL_8250=y
 CONFIG_SERIAL_8250_CONSOLE=y
 CONFIG_SERIAL_8250_DW=y
+CONFIG_SERIAL_8250_EM=y
 CONFIG_SERIAL_8250_MT6577=y
 CONFIG_SERIAL_AMBA_PL011=y
 CONFIG_SERIAL_AMBA_PL011_CONSOLE=y
@@ -213,6 +234,9 @@ CONFIG_SERIAL_SIRFSOC_CONSOLE=y
 CONFIG_SERIAL_TEGRA=y
 CONFIG_SERIAL_IMX=y
 CONFIG_SERIAL_IMX_CONSOLE=y
+CONFIG_SERIAL_SH_SCI=y
+CONFIG_SERIAL_SH_SCI_NR_UARTS=20
+CONFIG_SERIAL_SH_SCI_CONSOLE=y
 CONFIG_SERIAL_MSM=y
 CONFIG_SERIAL_MSM_CONSOLE=y
 CONFIG_SERIAL_VT8500=y
@@ -233,19 +257,26 @@ CONFIG_I2C_MUX_PCA954x=y
 CONFIG_I2C_MUX_PINCTRL=y
 CONFIG_I2C_CADENCE=y
 CONFIG_I2C_DESIGNWARE_PLATFORM=y
+CONFIG_I2C_GPIO=m
 CONFIG_I2C_EXYNOS5=y
 CONFIG_I2C_MV64XXX=y
+CONFIG_I2C_RIIC=y
 CONFIG_I2C_S3C2410=y
+CONFIG_I2C_SH_MOBILE=y
 CONFIG_I2C_SIRF=y
-CONFIG_I2C_TEGRA=y
 CONFIG_I2C_ST=y
-CONFIG_SPI=y
+CONFIG_I2C_TEGRA=y
 CONFIG_I2C_XILINX=y
-CONFIG_SPI_DAVINCI=y
+CONFIG_I2C_RCAR=y
+CONFIG_SPI=y
 CONFIG_SPI_CADENCE=y
+CONFIG_SPI_DAVINCI=y
 CONFIG_SPI_OMAP24XX=y
 CONFIG_SPI_ORION=y
 CONFIG_SPI_PL022=y
+CONFIG_SPI_RSPI=y
+CONFIG_SPI_SH_MSIOF=m
+CONFIG_SPI_SH_HSPI=y
 CONFIG_SPI_SIRF=y
 CONFIG_SPI_SUN4I=y
 CONFIG_SPI_SUN6I=y
@@ -259,12 +290,15 @@ CONFIG_PINCTRL_PALMAS=y
 CONFIG_PINCTRL_APQ8084=y
 CONFIG_GPIO_SYSFS=y
 CONFIG_GPIO_GENERIC_PLATFORM=y
-CONFIG_GPIO_DWAPB=y
 CONFIG_GPIO_DAVINCI=y
+CONFIG_GPIO_DWAPB=y
+CONFIG_GPIO_EM=y
+CONFIG_GPIO_RCAR=y
 CONFIG_GPIO_XILINX=y
 CONFIG_GPIO_ZYNQ=y
 CONFIG_GPIO_PCA953X=y
 CONFIG_GPIO_PCA953X_IRQ=y
+CONFIG_GPIO_PCF857X=y
 CONFIG_GPIO_TWL4030=y
 CONFIG_GPIO_PALMAS=y
 CONFIG_GPIO_SYSCON=y
@@ -276,10 +310,12 @@ CONFIG_POWER_RESET_AS3722=y
 CONFIG_POWER_RESET_GPIO=y
 CONFIG_POWER_RESET_KEYSTONE=y
 CONFIG_POWER_RESET_SUN6I=y
+CONFIG_POWER_RESET_RMOBILE=y
 CONFIG_SENSORS_LM90=y
 CONFIG_SENSORS_LM95245=y
 CONFIG_THERMAL=y
 CONFIG_CPU_THERMAL=y
+CONFIG_RCAR_THERMAL=y
 CONFIG_ARMADA_THERMAL=y
 CONFIG_DAVINCI_WATCHDOG
 CONFIG_ST_THERMAL_SYSCFG=y
@@ -290,6 +326,7 @@ CONFIG_ARM_SP805_WATCHDOG=y
 CONFIG_ORION_WATCHDOG=y
 CONFIG_SUNXI_WATCHDOG=y
 CONFIG_MESON_WATCHDOG=y
+CONFIG_MFD_AS3711=y
 CONFIG_MFD_AS3722=y
 CONFIG_MFD_BCM590XX=y
 CONFIG_MFD_AXP20X=y
@@ -304,13 +341,16 @@ CONFIG_MFD_TPS65090=y
 CONFIG_MFD_TPS6586X=y
 CONFIG_MFD_TPS65910=y
 CONFIG_REGULATOR_AB8500=y
+CONFIG_REGULATOR_AS3711=y
 CONFIG_REGULATOR_AS3722=y
 CONFIG_REGULATOR_AXP20X=y
 CONFIG_REGULATOR_BCM590XX=y
+CONFIG_REGULATOR_DA9210=y
 CONFIG_REGULATOR_GPIO=y
 CONFIG_MFD_SYSCON=y
 CONFIG_POWER_RESET_SYSCON=y
 CONFIG_REGULATOR_MAX8907=y
+CONFIG_REGULATOR_MAX8973=y
 CONFIG_REGULATOR_MAX77686=y
 CONFIG_REGULATOR_PALMAS=y
 CONFIG_REGULATOR_S2MPS11=y
@@ -324,18 +364,32 @@ CONFIG_REGULATOR_TWL4030=y
 CONFIG_REGULATOR_VEXPRESS=y
 CONFIG_MEDIA_SUPPORT=y
 CONFIG_MEDIA_CAMERA_SUPPORT=y
+CONFIG_MEDIA_CONTROLLER=y
+CONFIG_VIDEO_V4L2_SUBDEV_API=y
 CONFIG_MEDIA_USB_SUPPORT=y
 CONFIG_USB_VIDEO_CLASS=y
 CONFIG_USB_GSPCA=y
+CONFIG_V4L_PLATFORM_DRIVERS=y
+CONFIG_SOC_CAMERA=m
+CONFIG_SOC_CAMERA_PLATFORM=m
+CONFIG_VIDEO_RCAR_VIN=m
+CONFIG_V4L_MEM2MEM_DRIVERS=y
+CONFIG_VIDEO_RENESAS_VSP1=m
+# CONFIG_MEDIA_SUBDRV_AUTOSELECT is not set
+CONFIG_VIDEO_ADV7180=m
 CONFIG_DRM=y
+CONFIG_DRM_RCAR_DU=m
 CONFIG_DRM_TEGRA=y
 CONFIG_DRM_PANEL_SIMPLE=y
 CONFIG_FB_ARMCLCD=y
 CONFIG_FB_WM8505=y
+CONFIG_FB_SH_MOBILE_LCDC=y
 CONFIG_FB_SIMPLE=y
+CONFIG_FB_SH_MOBILE_MERAM=y
 CONFIG_BACKLIGHT_LCD_SUPPORT=y
 CONFIG_BACKLIGHT_CLASS_DEVICE=y
 CONFIG_BACKLIGHT_PWM=y
+CONFIG_BACKLIGHT_AS3711=y
 CONFIG_FRAMEBUFFER_CONSOLE=y
 CONFIG_FRAMEBUFFER_CONSOLE_ROTATION=y
 CONFIG_SOUND=y
@@ -343,6 +397,8 @@ CONFIG_SND=y
 CONFIG_SND_DYNAMIC_MINORS=y
 CONFIG_SND_USB_AUDIO=y
 CONFIG_SND_SOC=y
+CONFIG_SND_SOC_SH4_FSI=m
+CONFIG_SND_SOC_RCAR=m
 CONFIG_SND_SOC_TEGRA=y
 CONFIG_SND_SOC_TEGRA_RT5640=y
 CONFIG_SND_SOC_TEGRA_WM8753=y
@@ -350,6 +406,8 @@ CONFIG_SND_SOC_TEGRA_WM8903=y
 CONFIG_SND_SOC_TEGRA_TRIMSLICE=y
 CONFIG_SND_SOC_TEGRA_ALC5632=y
 CONFIG_SND_SOC_TEGRA_MAX98090=y
+CONFIG_SND_SOC_AK4642=m
+CONFIG_SND_SOC_WM8978=m
 CONFIG_USB=y
 CONFIG_USB_XHCI_HCD=y
 CONFIG_USB_XHCI_MVEBU=y
@@ -362,6 +420,8 @@ CONFIG_USB_ISP1760_HCD=y
 CONFIG_USB_OHCI_HCD=y
 CONFIG_USB_OHCI_HCD_STI=y
 CONFIG_USB_OHCI_HCD_PLATFORM=y
+CONFIG_USB_R8A66597_HCD=m
+CONFIG_USB_RENESAS_USBHS=m
 CONFIG_USB_STORAGE=y
 CONFIG_USB_DWC3=y
 CONFIG_USB_CHIPIDEA=y
@@ -374,6 +434,10 @@ CONFIG_SAMSUNG_USB3PHY=y
 CONFIG_USB_GPIO_VBUS=y
 CONFIG_USB_ISP1301=y
 CONFIG_USB_MXS_PHY=y
+CONFIG_USB_RCAR_PHY=m
+CONFIG_USB_RCAR_GEN2_PHY=m
+CONFIG_USB_GADGET=y
+CONFIG_USB_RENESAS_USBHS_UDC=m
 CONFIG_MMC=y
 CONFIG_MMC_BLOCK_MINORS=16
 CONFIG_MMC_ARMMMCI=y
@@ -392,12 +456,14 @@ CONFIG_MMC_SDHCI_ST=y
 CONFIG_MMC_OMAP=y
 CONFIG_MMC_OMAP_HS=y
 CONFIG_MMC_MVSDIO=y
-CONFIG_MMC_SUNXI=y
+CONFIG_MMC_SDHI=y
 CONFIG_MMC_DW=y
 CONFIG_MMC_DW_IDMAC=y
 CONFIG_MMC_DW_PLTFM=y
 CONFIG_MMC_DW_EXYNOS=y
 CONFIG_MMC_DW_ROCKCHIP=y
+CONFIG_MMC_SH_MMCIF=y
+CONFIG_MMC_SUNXI=y
 CONFIG_NEW_LEDS=y
 CONFIG_LEDS_CLASS=y
 CONFIG_LEDS_GPIO=y
@@ -421,10 +487,12 @@ CONFIG_RTC_DRV_AS3722=y
 CONFIG_RTC_DRV_DS1307=y
 CONFIG_RTC_DRV_MAX8907=y
 CONFIG_RTC_DRV_MAX77686=y
+CONFIG_RTC_DRV_RS5C372=m
 CONFIG_RTC_DRV_PALMAS=y
 CONFIG_RTC_DRV_TWL4030=y
 CONFIG_RTC_DRV_TPS6586X=y
 CONFIG_RTC_DRV_TPS65910=y
+CONFIG_RTC_DRV_S35390A=m
 CONFIG_RTC_DRV_EM3027=y
 CONFIG_RTC_DRV_PL031=y
 CONFIG_RTC_DRV_VT8500=y
@@ -436,6 +504,9 @@ CONFIG_DMADEVICES=y
 CONFIG_DW_DMAC=y
 CONFIG_MV_XOR=y
 CONFIG_TEGRA20_APB_DMA=y
+CONFIG_SH_DMAE=y
+CONFIG_RCAR_AUDMAC_PP=m
+CONFIG_RCAR_DMAC=y
 CONFIG_STE_DMA40=y
 CONFIG_SIRF_DMA=y
 CONFIG_TI_EDMA=y
@@ -468,6 +539,7 @@ CONFIG_IIO=y
 CONFIG_XILINX_XADC=y
 CONFIG_AK8975=y
 CONFIG_PWM=y
+CONFIG_PWM_RENESAS_TPU=y
 CONFIG_PWM_TEGRA=y
 CONFIG_PWM_VT8500=y
 CONFIG_PHY_HIX5HD2_SATA=y
diff --git a/arch/arm/configs/omap2plus_defconfig b/arch/arm/configs/omap2plus_defconfig
index b738652..8e10859 100644
--- a/arch/arm/configs/omap2plus_defconfig
+++ b/arch/arm/configs/omap2plus_defconfig
@@ -114,6 +114,7 @@ CONFIG_MTD_PHYSMAP_OF=y
 CONFIG_MTD_NAND=y
 CONFIG_MTD_NAND_ECC_BCH=y
 CONFIG_MTD_NAND_OMAP2=y
+CONFIG_MTD_NAND_OMAP_BCH=y
 CONFIG_MTD_ONENAND=y
 CONFIG_MTD_ONENAND_VERIFY_WRITE=y
 CONFIG_MTD_ONENAND_OMAP2=y
@@ -248,6 +249,7 @@ CONFIG_TWL6040_CORE=y
 CONFIG_REGULATOR_PALMAS=y
 CONFIG_REGULATOR_PBIAS=y
 CONFIG_REGULATOR_TI_ABB=y
+CONFIG_REGULATOR_TPS62360=m
 CONFIG_REGULATOR_TPS65023=y
 CONFIG_REGULATOR_TPS6507X=y
 CONFIG_REGULATOR_TPS65217=y
@@ -374,7 +376,8 @@ CONFIG_PWM_TIEHRPWM=m
 CONFIG_PWM_TWL=m
 CONFIG_PWM_TWL_LED=m
 CONFIG_OMAP_USB2=m
-CONFIG_TI_PIPE3=m
+CONFIG_TI_PIPE3=y
+CONFIG_TWL4030_USB=m
 CONFIG_EXT2_FS=y
 CONFIG_EXT3_FS=y
 # CONFIG_EXT3_FS_XATTR is not set
diff --git a/arch/arm/configs/sama5_defconfig b/arch/arm/configs/sama5_defconfig
index 41d856e..510c747 100644
--- a/arch/arm/configs/sama5_defconfig
+++ b/arch/arm/configs/sama5_defconfig
@@ -3,8 +3,6 @@
 CONFIG_SYSVIPC=y
 CONFIG_IRQ_DOMAIN_DEBUG=y
 CONFIG_LOG_BUF_SHIFT=14
-CONFIG_SYSFS_DEPRECATED=y
-CONFIG_SYSFS_DEPRECATED_V2=y
 CONFIG_BLK_DEV_INITRD=y
 CONFIG_EMBEDDED=y
 CONFIG_SLAB=y
diff --git a/arch/arm/configs/sunxi_defconfig b/arch/arm/configs/sunxi_defconfig
index 38840a8..8f6a570 100644
--- a/arch/arm/configs/sunxi_defconfig
+++ b/arch/arm/configs/sunxi_defconfig
@@ -4,6 +4,7 @@ CONFIG_BLK_DEV_INITRD=y
 CONFIG_PERF_EVENTS=y
 CONFIG_ARCH_SUNXI=y
 CONFIG_SMP=y
+CONFIG_NR_CPUS=8
 CONFIG_AEABI=y
 CONFIG_HIGHMEM=y
 CONFIG_HIGHPTE=y
diff --git a/arch/arm/configs/vexpress_defconfig b/arch/arm/configs/vexpress_defconfig
index f489fda..37fe607 100644
--- a/arch/arm/configs/vexpress_defconfig
+++ b/arch/arm/configs/vexpress_defconfig
@@ -118,8 +118,8 @@ CONFIG_HID_ZEROPLUS=y
 CONFIG_USB=y
 CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
 CONFIG_USB_MON=y
-CONFIG_USB_ISP1760_HCD=y
 CONFIG_USB_STORAGE=y
+CONFIG_USB_ISP1760=y
 CONFIG_MMC=y
 CONFIG_MMC_ARMMMCI=y
 CONFIG_NEW_LEDS=y
diff --git a/arch/arm/crypto/aesbs-core.S_shipped b/arch/arm/crypto/aesbs-core.S_shipped
index 71e5fc7..1d1800f 100644
--- a/arch/arm/crypto/aesbs-core.S_shipped
+++ b/arch/arm/crypto/aesbs-core.S_shipped
@@ -58,14 +58,18 @@
 # define VFP_ABI_FRAME	0
 # define BSAES_ASM_EXTENDED_KEY
 # define XTS_CHAIN_TWEAK
-# define __ARM_ARCH__	7
+# define __ARM_ARCH__ __LINUX_ARM_ARCH__
+# define __ARM_MAX_ARCH__ 7
 #endif
 
 #ifdef __thumb__
 # define adrl adr
 #endif
 
-#if __ARM_ARCH__>=7
+#if __ARM_MAX_ARCH__>=7
+.arch	armv7-a
+.fpu	neon
+
 .text
 .syntax	unified 	@ ARMv7-capable assembler is expected to handle this
 #ifdef __thumb2__
@@ -74,8 +78,6 @@
 .code   32
 #endif
 
-.fpu	neon
-
 .type	_bsaes_decrypt8,%function
 .align	4
 _bsaes_decrypt8:
@@ -2095,9 +2097,11 @@ bsaes_xts_decrypt:
 	vld1.8	{q8}, [r0]			@ initial tweak
 	adr	r2, .Lxts_magic
 
+#ifndef	XTS_CHAIN_TWEAK
 	tst	r9, #0xf			@ if not multiple of 16
 	it	ne				@ Thumb2 thing, sanity check in ARM
 	subne	r9, #0x10			@ subtract another 16 bytes
+#endif
 	subs	r9, #0x80
 
 	blo	.Lxts_dec_short
diff --git a/arch/arm/crypto/bsaes-armv7.pl b/arch/arm/crypto/bsaes-armv7.pl
index be068db..a4d3856 100644
--- a/arch/arm/crypto/bsaes-armv7.pl
+++ b/arch/arm/crypto/bsaes-armv7.pl
@@ -701,14 +701,18 @@ $code.=<<___;
 # define VFP_ABI_FRAME	0
 # define BSAES_ASM_EXTENDED_KEY
 # define XTS_CHAIN_TWEAK
-# define __ARM_ARCH__	7
+# define __ARM_ARCH__ __LINUX_ARM_ARCH__
+# define __ARM_MAX_ARCH__ 7
 #endif
 
 #ifdef __thumb__
 # define adrl adr
 #endif
 
-#if __ARM_ARCH__>=7
+#if __ARM_MAX_ARCH__>=7
+.arch	armv7-a
+.fpu	neon
+
 .text
 .syntax	unified 	@ ARMv7-capable assembler is expected to handle this
 #ifdef __thumb2__
@@ -717,8 +721,6 @@ $code.=<<___;
 .code   32
 #endif
 
-.fpu	neon
-
 .type	_bsaes_decrypt8,%function
 .align	4
 _bsaes_decrypt8:
@@ -2076,9 +2078,11 @@ bsaes_xts_decrypt:
 	vld1.8	{@XMM[8]}, [r0]			@ initial tweak
 	adr	$magic, .Lxts_magic
 
+#ifndef	XTS_CHAIN_TWEAK
 	tst	$len, #0xf			@ if not multiple of 16
 	it	ne				@ Thumb2 thing, sanity check in ARM
 	subne	$len, #0x10			@ subtract another 16 bytes
+#endif
 	subs	$len, #0x80
 
 	blo	.Lxts_dec_short
diff --git a/arch/arm/include/asm/jump_label.h b/arch/arm/include/asm/jump_label.h
index 70f9b9b..5f337dc 100644
--- a/arch/arm/include/asm/jump_label.h
+++ b/arch/arm/include/asm/jump_label.h
@@ -1,7 +1,7 @@
 #ifndef _ASM_ARM_JUMP_LABEL_H
 #define _ASM_ARM_JUMP_LABEL_H
 
-#ifdef __KERNEL__
+#ifndef __ASSEMBLY__
 
 #include <linux/types.h>
 
@@ -27,8 +27,6 @@ l_yes:
 	return true;
 }
 
-#endif /* __KERNEL__ */
-
 typedef u32 jump_label_t;
 
 struct jump_entry {
@@ -37,4 +35,5 @@ struct jump_entry {
 	jump_label_t key;
 };
 
+#endif  /* __ASSEMBLY__ */
 #endif
diff --git a/arch/arm/include/asm/kvm_arm.h b/arch/arm/include/asm/kvm_arm.h
index 816db0b..d995821 100644
--- a/arch/arm/include/asm/kvm_arm.h
+++ b/arch/arm/include/asm/kvm_arm.h
@@ -185,6 +185,7 @@
 #define HSR_COND	(0xfU << HSR_COND_SHIFT)
 
 #define FSC_FAULT	(0x04)
+#define FSC_ACCESS	(0x08)
 #define FSC_PERM	(0x0c)
 
 /* Hyp Prefetch Fault Address Register (HPFAR/HDFAR) */
diff --git a/arch/arm/include/asm/kvm_host.h b/arch/arm/include/asm/kvm_host.h
index 41008cd..d71607c 100644
--- a/arch/arm/include/asm/kvm_host.h
+++ b/arch/arm/include/asm/kvm_host.h
@@ -27,6 +27,8 @@
 #include <asm/fpstate.h>
 #include <kvm/arm_arch_timer.h>
 
+#define __KVM_HAVE_ARCH_INTC_INITIALIZED
+
 #if defined(CONFIG_KVM_ARM_MAX_VCPUS)
 #define KVM_MAX_VCPUS CONFIG_KVM_ARM_MAX_VCPUS
 #else
@@ -165,19 +167,10 @@ void kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte);
 
 unsigned long kvm_arm_num_regs(struct kvm_vcpu *vcpu);
 int kvm_arm_copy_reg_indices(struct kvm_vcpu *vcpu, u64 __user *indices);
+int kvm_age_hva(struct kvm *kvm, unsigned long start, unsigned long end);
+int kvm_test_age_hva(struct kvm *kvm, unsigned long hva);
 
 /* We do not have shadow page tables, hence the empty hooks */
-static inline int kvm_age_hva(struct kvm *kvm, unsigned long start,
-			      unsigned long end)
-{
-	return 0;
-}
-
-static inline int kvm_test_age_hva(struct kvm *kvm, unsigned long hva)
-{
-	return 0;
-}
-
 static inline void kvm_arch_mmu_notifier_invalidate_page(struct kvm *kvm,
 							 unsigned long address)
 {
diff --git a/arch/arm/include/asm/kvm_mmio.h b/arch/arm/include/asm/kvm_mmio.h
index 3f83db2..d8e90c8 100644
--- a/arch/arm/include/asm/kvm_mmio.h
+++ b/arch/arm/include/asm/kvm_mmio.h
@@ -28,28 +28,6 @@ struct kvm_decode {
 	bool sign_extend;
 };
 
-/*
- * The in-kernel MMIO emulation code wants to use a copy of run->mmio,
- * which is an anonymous type. Use our own type instead.
- */
-struct kvm_exit_mmio {
-	phys_addr_t	phys_addr;
-	u8		data[8];
-	u32		len;
-	bool		is_write;
-	void		*private;
-};
-
-static inline void kvm_prepare_mmio(struct kvm_run *run,
-				    struct kvm_exit_mmio *mmio)
-{
-	run->mmio.phys_addr	= mmio->phys_addr;
-	run->mmio.len		= mmio->len;
-	run->mmio.is_write	= mmio->is_write;
-	memcpy(run->mmio.data, mmio->data, mmio->len);
-	run->exit_reason	= KVM_EXIT_MMIO;
-}
-
 int kvm_handle_mmio_return(struct kvm_vcpu *vcpu, struct kvm_run *run);
 int io_mem_abort(struct kvm_vcpu *vcpu, struct kvm_run *run,
 		 phys_addr_t fault_ipa);
diff --git a/arch/arm/include/asm/kvm_mmu.h b/arch/arm/include/asm/kvm_mmu.h
index 37ca2a4..4cf48c3 100644
--- a/arch/arm/include/asm/kvm_mmu.h
+++ b/arch/arm/include/asm/kvm_mmu.h
@@ -149,29 +149,28 @@ static inline bool kvm_s2pmd_readonly(pmd_t *pmd)
 	(__boundary - 1 < (end) - 1)? __boundary: (end);		\
 })
 
+#define kvm_pgd_index(addr)			pgd_index(addr)
+
 static inline bool kvm_page_empty(void *ptr)
 {
 	struct page *ptr_page = virt_to_page(ptr);
 	return page_count(ptr_page) == 1;
 }
 
-
 #define kvm_pte_table_empty(kvm, ptep) kvm_page_empty(ptep)
 #define kvm_pmd_table_empty(kvm, pmdp) kvm_page_empty(pmdp)
 #define kvm_pud_table_empty(kvm, pudp) (0)
 
 #define KVM_PREALLOC_LEVEL	0
 
-static inline int kvm_prealloc_hwpgd(struct kvm *kvm, pgd_t *pgd)
+static inline void *kvm_get_hwpgd(struct kvm *kvm)
 {
-	return 0;
+	return kvm->arch.pgd;
 }
 
-static inline void kvm_free_hwpgd(struct kvm *kvm) { }
-
-static inline void *kvm_get_hwpgd(struct kvm *kvm)
+static inline unsigned int kvm_get_hwpgd_size(void)
 {
-	return kvm->arch.pgd;
+	return PTRS_PER_S2_PGD * sizeof(pgd_t);
 }
 
 struct kvm;
@@ -207,7 +206,7 @@ static inline void __coherent_cache_guest_page(struct kvm_vcpu *vcpu, pfn_t pfn,
 
 	bool need_flush = !vcpu_has_cache_enabled(vcpu) || ipa_uncached;
 
-	VM_BUG_ON(size & PAGE_MASK);
+	VM_BUG_ON(size & ~PAGE_MASK);
 
 	if (!need_flush && !icache_is_pipt())
 		goto vipt_cache;
diff --git a/arch/arm/include/asm/mach/time.h b/arch/arm/include/asm/mach/time.h
index 90c12e1..0f79e4d 100644
--- a/arch/arm/include/asm/mach/time.h
+++ b/arch/arm/include/asm/mach/time.h
@@ -12,8 +12,7 @@
 
 extern void timer_tick(void);
 
-struct timespec;
-typedef void (*clock_access_fn)(struct timespec *);
+typedef void (*clock_access_fn)(struct timespec64 *);
 extern int register_persistent_clock(clock_access_fn read_boot,
 				     clock_access_fn read_persistent);
 
diff --git a/arch/arm/include/debug/at91.S b/arch/arm/include/debug/at91.S
index 80a6501..c3c45e6 100644
--- a/arch/arm/include/debug/at91.S
+++ b/arch/arm/include/debug/at91.S
@@ -18,8 +18,11 @@
 #define AT91_DBGU 0xfc00c000 /* SAMA5D4_BASE_USART3 */
 #endif
 
-/* Keep in sync with mach-at91/include/mach/hardware.h */
+#ifdef CONFIG_MMU
 #define AT91_IO_P2V(x) ((x) - 0x01000000)
+#else
+#define AT91_IO_P2V(x) (x)
+#endif
 
 #define AT91_DBGU_SR		(0x14)	/* Status Register */
 #define AT91_DBGU_THR		(0x1c)	/* Transmitter Holding Register */
diff --git a/arch/arm/include/uapi/asm/kvm.h b/arch/arm/include/uapi/asm/kvm.h
index 0db25bc..2499867 100644
--- a/arch/arm/include/uapi/asm/kvm.h
+++ b/arch/arm/include/uapi/asm/kvm.h
@@ -198,6 +198,9 @@ struct kvm_arch_memory_slot {
 /* Highest supported SPI, from VGIC_NR_IRQS */
 #define KVM_ARM_IRQ_GIC_MAX		127
 
+/* One single KVM irqchip, ie. the VGIC */
+#define KVM_NR_IRQCHIPS          1
+
 /* PSCI interface */
 #define KVM_PSCI_FN_BASE		0x95c1ba5e
 #define KVM_PSCI_FN(n)			(KVM_PSCI_FN_BASE + (n))
diff --git a/arch/arm/kernel/asm-offsets.c b/arch/arm/kernel/asm-offsets.c
index 2d2d608..488eaac 100644
--- a/arch/arm/kernel/asm-offsets.c
+++ b/arch/arm/kernel/asm-offsets.c
@@ -190,7 +190,6 @@ int main(void)
   DEFINE(VCPU_HxFAR,		offsetof(struct kvm_vcpu, arch.fault.hxfar));
   DEFINE(VCPU_HPFAR,		offsetof(struct kvm_vcpu, arch.fault.hpfar));
   DEFINE(VCPU_HYP_PC,		offsetof(struct kvm_vcpu, arch.fault.hyp_pc));
-#ifdef CONFIG_KVM_ARM_VGIC
   DEFINE(VCPU_VGIC_CPU,		offsetof(struct kvm_vcpu, arch.vgic_cpu));
   DEFINE(VGIC_V2_CPU_HCR,	offsetof(struct vgic_cpu, vgic_v2.vgic_hcr));
   DEFINE(VGIC_V2_CPU_VMCR,	offsetof(struct vgic_cpu, vgic_v2.vgic_vmcr));
@@ -200,14 +199,11 @@ int main(void)
   DEFINE(VGIC_V2_CPU_APR,	offsetof(struct vgic_cpu, vgic_v2.vgic_apr));
   DEFINE(VGIC_V2_CPU_LR,	offsetof(struct vgic_cpu, vgic_v2.vgic_lr));
   DEFINE(VGIC_CPU_NR_LR,	offsetof(struct vgic_cpu, nr_lr));
-#ifdef CONFIG_KVM_ARM_TIMER
   DEFINE(VCPU_TIMER_CNTV_CTL,	offsetof(struct kvm_vcpu, arch.timer_cpu.cntv_ctl));
   DEFINE(VCPU_TIMER_CNTV_CVAL,	offsetof(struct kvm_vcpu, arch.timer_cpu.cntv_cval));
   DEFINE(KVM_TIMER_CNTVOFF,	offsetof(struct kvm, arch.timer.cntvoff));
   DEFINE(KVM_TIMER_ENABLED,	offsetof(struct kvm, arch.timer.enabled));
-#endif
   DEFINE(KVM_VGIC_VCTRL,	offsetof(struct kvm, arch.vgic.vctrl_base));
-#endif
   DEFINE(KVM_VTTBR,		offsetof(struct kvm, arch.vttbr));
 #endif
   return 0; 
diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
index e55408e..1d60beb 100644
--- a/arch/arm/kernel/setup.c
+++ b/arch/arm/kernel/setup.c
@@ -246,12 +246,9 @@ static int __get_cpu_architecture(void)
 		if (cpu_arch)
 			cpu_arch += CPU_ARCH_ARMv3;
 	} else if ((read_cpuid_id() & 0x000f0000) == 0x000f0000) {
-		unsigned int mmfr0;
-
 		/* Revised CPUID format. Read the Memory Model Feature
 		 * Register 0 and check for VMSAv7 or PMSAv7 */
-		asm("mrc	p15, 0, %0, c0, c1, 4"
-		    : "=r" (mmfr0));
+		unsigned int mmfr0 = read_cpuid_ext(CPUID_EXT_MMFR0);
 		if ((mmfr0 & 0x0000000f) >= 0x00000003 ||
 		    (mmfr0 & 0x000000f0) >= 0x00000030)
 			cpu_arch = CPU_ARCH_ARMv7;
diff --git a/arch/arm/kernel/time.c b/arch/arm/kernel/time.c
index 0cc7e58..a66e37e 100644
--- a/arch/arm/kernel/time.c
+++ b/arch/arm/kernel/time.c
@@ -76,7 +76,7 @@ void timer_tick(void)
 }
 #endif
 
-static void dummy_clock_access(struct timespec *ts)
+static void dummy_clock_access(struct timespec64 *ts)
 {
 	ts->tv_sec = 0;
 	ts->tv_nsec = 0;
@@ -85,12 +85,12 @@ static void dummy_clock_access(struct timespec *ts)
 static clock_access_fn __read_persistent_clock = dummy_clock_access;
 static clock_access_fn __read_boot_clock = dummy_clock_access;;
 
-void read_persistent_clock(struct timespec *ts)
+void read_persistent_clock64(struct timespec64 *ts)
 {
 	__read_persistent_clock(ts);
 }
 
-void read_boot_clock(struct timespec *ts)
+void read_boot_clock64(struct timespec64 *ts)
 {
 	__read_boot_clock(ts);
 }
diff --git a/arch/arm/kvm/Kconfig b/arch/arm/kvm/Kconfig
index 338ace7..f1f79d1 100644
--- a/arch/arm/kvm/Kconfig
+++ b/arch/arm/kvm/Kconfig
@@ -18,6 +18,7 @@ if VIRTUALIZATION
 
 config KVM
 	bool "Kernel-based Virtual Machine (KVM) support"
+	depends on MMU && OF
 	select PREEMPT_NOTIFIERS
 	select ANON_INODES
 	select HAVE_KVM_CPU_RELAX_INTERCEPT
@@ -26,10 +27,12 @@ config KVM
 	select KVM_ARM_HOST
 	select KVM_GENERIC_DIRTYLOG_READ_PROTECT
 	select SRCU
-	depends on ARM_VIRT_EXT && ARM_LPAE
+	select MMU_NOTIFIER
+	select HAVE_KVM_EVENTFD
+	select HAVE_KVM_IRQFD
+	depends on ARM_VIRT_EXT && ARM_LPAE && ARM_ARCH_TIMER
 	---help---
-	  Support hosting virtualized guest machines. You will also
-	  need to select one or more of the processor modules below.
+	  Support hosting virtualized guest machines.
 
 	  This module provides access to the hardware capabilities through
 	  a character device node named /dev/kvm.
@@ -37,10 +40,7 @@ config KVM
 	  If unsure, say N.
 
 config KVM_ARM_HOST
-	bool "KVM host support for ARM cpus."
-	depends on KVM
-	depends on MMU
-	select	MMU_NOTIFIER
+	bool
 	---help---
 	  Provides host support for ARM processors.
 
@@ -55,20 +55,4 @@ config KVM_ARM_MAX_VCPUS
 	  large, so only choose a reasonable number that you expect to
 	  actually use.
 
-config KVM_ARM_VGIC
-	bool "KVM support for Virtual GIC"
-	depends on KVM_ARM_HOST && OF
-	select HAVE_KVM_IRQCHIP
-	default y
-	---help---
-	  Adds support for a hardware assisted, in-kernel GIC emulation.
-
-config KVM_ARM_TIMER
-	bool "KVM support for Architected Timers"
-	depends on KVM_ARM_VGIC && ARM_ARCH_TIMER
-	select HAVE_KVM_IRQCHIP
-	default y
-	---help---
-	  Adds support for the Architected Timers in virtual machines
-
 endif # VIRTUALIZATION
diff --git a/arch/arm/kvm/Makefile b/arch/arm/kvm/Makefile
index 443b8be..139e46c 100644
--- a/arch/arm/kvm/Makefile
+++ b/arch/arm/kvm/Makefile
@@ -7,7 +7,7 @@ ifeq ($(plus_virt),+virt)
 	plus_virt_def := -DREQUIRES_VIRT=1
 endif
 
-ccflags-y += -Ivirt/kvm -Iarch/arm/kvm
+ccflags-y += -Iarch/arm/kvm
 CFLAGS_arm.o := -I. $(plus_virt_def)
 CFLAGS_mmu.o := -I.
 
@@ -15,12 +15,12 @@ AFLAGS_init.o := -Wa,-march=armv7-a$(plus_virt)
 AFLAGS_interrupts.o := -Wa,-march=armv7-a$(plus_virt)
 
 KVM := ../../../virt/kvm
-kvm-arm-y = $(KVM)/kvm_main.o $(KVM)/coalesced_mmio.o
+kvm-arm-y = $(KVM)/kvm_main.o $(KVM)/coalesced_mmio.o $(KVM)/eventfd.o
 
 obj-y += kvm-arm.o init.o interrupts.o
 obj-y += arm.o handle_exit.o guest.o mmu.o emulate.o reset.o
 obj-y += coproc.o coproc_a15.o coproc_a7.o mmio.o psci.o perf.o
-obj-$(CONFIG_KVM_ARM_VGIC) += $(KVM)/arm/vgic.o
-obj-$(CONFIG_KVM_ARM_VGIC) += $(KVM)/arm/vgic-v2.o
-obj-$(CONFIG_KVM_ARM_VGIC) += $(KVM)/arm/vgic-v2-emul.o
-obj-$(CONFIG_KVM_ARM_TIMER) += $(KVM)/arm/arch_timer.o
+obj-y += $(KVM)/arm/vgic.o
+obj-y += $(KVM)/arm/vgic-v2.o
+obj-y += $(KVM)/arm/vgic-v2-emul.o
+obj-y += $(KVM)/arm/arch_timer.o
diff --git a/arch/arm/kvm/arm.c b/arch/arm/kvm/arm.c
index 07e7eb1..6f53645 100644
--- a/arch/arm/kvm/arm.c
+++ b/arch/arm/kvm/arm.c
@@ -61,8 +61,6 @@ static atomic64_t kvm_vmid_gen = ATOMIC64_INIT(1);
 static u8 kvm_next_vmid;
 static DEFINE_SPINLOCK(kvm_vmid_lock);
 
-static bool vgic_present;
-
 static void kvm_arm_set_running_vcpu(struct kvm_vcpu *vcpu)
 {
 	BUG_ON(preemptible());
@@ -173,8 +171,8 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
 	int r;
 	switch (ext) {
 	case KVM_CAP_IRQCHIP:
-		r = vgic_present;
-		break;
+	case KVM_CAP_IRQFD:
+	case KVM_CAP_IOEVENTFD:
 	case KVM_CAP_DEVICE_CTRL:
 	case KVM_CAP_USER_MEMORY:
 	case KVM_CAP_SYNC_MMU:
@@ -183,6 +181,7 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
 	case KVM_CAP_ARM_PSCI:
 	case KVM_CAP_ARM_PSCI_0_2:
 	case KVM_CAP_READONLY_MEM:
+	case KVM_CAP_MP_STATE:
 		r = 1;
 		break;
 	case KVM_CAP_COALESCED_MMIO:
@@ -268,7 +267,7 @@ void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu)
 
 int kvm_cpu_has_pending_timer(struct kvm_vcpu *vcpu)
 {
-	return 0;
+	return kvm_timer_should_fire(vcpu);
 }
 
 int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu)
@@ -313,13 +312,29 @@ int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu,
 int kvm_arch_vcpu_ioctl_get_mpstate(struct kvm_vcpu *vcpu,
 				    struct kvm_mp_state *mp_state)
 {
-	return -EINVAL;
+	if (vcpu->arch.pause)
+		mp_state->mp_state = KVM_MP_STATE_STOPPED;
+	else
+		mp_state->mp_state = KVM_MP_STATE_RUNNABLE;
+
+	return 0;
 }
 
 int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu,
 				    struct kvm_mp_state *mp_state)
 {
-	return -EINVAL;
+	switch (mp_state->mp_state) {
+	case KVM_MP_STATE_RUNNABLE:
+		vcpu->arch.pause = false;
+		break;
+	case KVM_MP_STATE_STOPPED:
+		vcpu->arch.pause = true;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
 }
 
 /**
@@ -452,6 +467,11 @@ static int kvm_vcpu_first_run_init(struct kvm_vcpu *vcpu)
 	return 0;
 }
 
+bool kvm_arch_intc_initialized(struct kvm *kvm)
+{
+	return vgic_initialized(kvm);
+}
+
 static void vcpu_pause(struct kvm_vcpu *vcpu)
 {
 	wait_queue_head_t *wq = kvm_arch_vcpu_wq(vcpu);
@@ -540,7 +560,7 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *run)
 
 		vcpu->mode = OUTSIDE_GUEST_MODE;
 		kvm_guest_exit();
-		trace_kvm_exit(*vcpu_pc(vcpu));
+		trace_kvm_exit(kvm_vcpu_trap_get_class(vcpu), *vcpu_pc(vcpu));
 		/*
 		 * We may have taken a host interrupt in HYP mode (ie
 		 * while executing the guest). This interrupt is still
@@ -831,8 +851,6 @@ static int kvm_vm_ioctl_set_device_addr(struct kvm *kvm,
 
 	switch (dev_id) {
 	case KVM_ARM_DEVICE_VGIC_V2:
-		if (!vgic_present)
-			return -ENXIO;
 		return kvm_vgic_addr(kvm, type, &dev_addr->addr, true);
 	default:
 		return -ENODEV;
@@ -847,10 +865,7 @@ long kvm_arch_vm_ioctl(struct file *filp,
 
 	switch (ioctl) {
 	case KVM_CREATE_IRQCHIP: {
-		if (vgic_present)
-			return kvm_vgic_create(kvm, KVM_DEV_TYPE_ARM_VGIC_V2);
-		else
-			return -ENXIO;
+		return kvm_vgic_create(kvm, KVM_DEV_TYPE_ARM_VGIC_V2);
 	}
 	case KVM_ARM_SET_DEVICE_ADDR: {
 		struct kvm_arm_device_addr dev_addr;
@@ -1035,10 +1050,6 @@ static int init_hyp_mode(void)
 	if (err)
 		goto out_free_context;
 
-#ifdef CONFIG_KVM_ARM_VGIC
-		vgic_present = true;
-#endif
-
 	/*
 	 * Init HYP architected timer support
 	 */
diff --git a/arch/arm/kvm/guest.c b/arch/arm/kvm/guest.c
index 384bab6..d503fbb 100644
--- a/arch/arm/kvm/guest.c
+++ b/arch/arm/kvm/guest.c
@@ -109,22 +109,6 @@ int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs)
 	return -EINVAL;
 }
 
-#ifndef CONFIG_KVM_ARM_TIMER
-
-#define NUM_TIMER_REGS 0
-
-static int copy_timer_indices(struct kvm_vcpu *vcpu, u64 __user *uindices)
-{
-	return 0;
-}
-
-static bool is_timer_reg(u64 index)
-{
-	return false;
-}
-
-#else
-
 #define NUM_TIMER_REGS 3
 
 static bool is_timer_reg(u64 index)
@@ -152,8 +136,6 @@ static int copy_timer_indices(struct kvm_vcpu *vcpu, u64 __user *uindices)
 	return 0;
 }
 
-#endif
-
 static int set_timer_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg)
 {
 	void __user *uaddr = (void __user *)(long)reg->addr;
diff --git a/arch/arm/kvm/interrupts_head.S b/arch/arm/kvm/interrupts_head.S
index 14d4883..35e4a3a 100644
--- a/arch/arm/kvm/interrupts_head.S
+++ b/arch/arm/kvm/interrupts_head.S
@@ -402,7 +402,6 @@ vcpu	.req	r0		@ vcpu pointer always in r0
  * Assumes vcpu pointer in vcpu reg
  */
 .macro save_vgic_state
-#ifdef CONFIG_KVM_ARM_VGIC
 	/* Get VGIC VCTRL base into r2 */
 	ldr	r2, [vcpu, #VCPU_KVM]
 	ldr	r2, [r2, #KVM_VGIC_VCTRL]
@@ -460,7 +459,6 @@ ARM_BE8(rev	r6, r6	)
 	subs	r4, r4, #1
 	bne	1b
 2:
-#endif
 .endm
 
 /*
@@ -469,7 +467,6 @@ ARM_BE8(rev	r6, r6	)
  * Assumes vcpu pointer in vcpu reg
  */
 .macro restore_vgic_state
-#ifdef CONFIG_KVM_ARM_VGIC
 	/* Get VGIC VCTRL base into r2 */
 	ldr	r2, [vcpu, #VCPU_KVM]
 	ldr	r2, [r2, #KVM_VGIC_VCTRL]
@@ -501,7 +498,6 @@ ARM_BE8(rev	r6, r6  )
 	subs	r4, r4, #1
 	bne	1b
 2:
-#endif
 .endm
 
 #define CNTHCTL_PL1PCTEN	(1 << 0)
@@ -515,7 +511,6 @@ ARM_BE8(rev	r6, r6  )
  * Clobbers r2-r5
  */
 .macro save_timer_state
-#ifdef CONFIG_KVM_ARM_TIMER
 	ldr	r4, [vcpu, #VCPU_KVM]
 	ldr	r2, [r4, #KVM_TIMER_ENABLED]
 	cmp	r2, #0
@@ -537,7 +532,6 @@ ARM_BE8(rev	r6, r6  )
 	mcrr	p15, 4, r2, r2, c14	@ CNTVOFF
 
 1:
-#endif
 	@ Allow physical timer/counter access for the host
 	mrc	p15, 4, r2, c14, c1, 0	@ CNTHCTL
 	orr	r2, r2, #(CNTHCTL_PL1PCEN | CNTHCTL_PL1PCTEN)
@@ -559,7 +553,6 @@ ARM_BE8(rev	r6, r6  )
 	bic	r2, r2, #CNTHCTL_PL1PCEN
 	mcr	p15, 4, r2, c14, c1, 0	@ CNTHCTL
 
-#ifdef CONFIG_KVM_ARM_TIMER
 	ldr	r4, [vcpu, #VCPU_KVM]
 	ldr	r2, [r4, #KVM_TIMER_ENABLED]
 	cmp	r2, #0
@@ -579,7 +572,6 @@ ARM_BE8(rev	r6, r6  )
 	and	r2, r2, #3
 	mcr	p15, 0, r2, c14, c3, 1	@ CNTV_CTL
 1:
-#endif
 .endm
 
 .equ vmentry,	0
diff --git a/arch/arm/kvm/mmio.c b/arch/arm/kvm/mmio.c
index 5d3bfc0..974b1c6 100644
--- a/arch/arm/kvm/mmio.c
+++ b/arch/arm/kvm/mmio.c
@@ -121,12 +121,11 @@ int kvm_handle_mmio_return(struct kvm_vcpu *vcpu, struct kvm_run *run)
 	return 0;
 }
 
-static int decode_hsr(struct kvm_vcpu *vcpu, phys_addr_t fault_ipa,
-		      struct kvm_exit_mmio *mmio)
+static int decode_hsr(struct kvm_vcpu *vcpu, bool *is_write, int *len)
 {
 	unsigned long rt;
-	int len;
-	bool is_write, sign_extend;
+	int access_size;
+	bool sign_extend;
 
 	if (kvm_vcpu_dabt_isextabt(vcpu)) {
 		/* cache operation on I/O addr, tell guest unsupported */
@@ -140,17 +139,15 @@ static int decode_hsr(struct kvm_vcpu *vcpu, phys_addr_t fault_ipa,
 		return 1;
 	}
 
-	len = kvm_vcpu_dabt_get_as(vcpu);
-	if (unlikely(len < 0))
-		return len;
+	access_size = kvm_vcpu_dabt_get_as(vcpu);
+	if (unlikely(access_size < 0))
+		return access_size;
 
-	is_write = kvm_vcpu_dabt_iswrite(vcpu);
+	*is_write = kvm_vcpu_dabt_iswrite(vcpu);
 	sign_extend = kvm_vcpu_dabt_issext(vcpu);
 	rt = kvm_vcpu_dabt_get_rd(vcpu);
 
-	mmio->is_write = is_write;
-	mmio->phys_addr = fault_ipa;
-	mmio->len = len;
+	*len = access_size;
 	vcpu->arch.mmio_decode.sign_extend = sign_extend;
 	vcpu->arch.mmio_decode.rt = rt;
 
@@ -165,20 +162,20 @@ static int decode_hsr(struct kvm_vcpu *vcpu, phys_addr_t fault_ipa,
 int io_mem_abort(struct kvm_vcpu *vcpu, struct kvm_run *run,
 		 phys_addr_t fault_ipa)
 {
-	struct kvm_exit_mmio mmio;
 	unsigned long data;
 	unsigned long rt;
 	int ret;
+	bool is_write;
+	int len;
+	u8 data_buf[8];
 
 	/*
-	 * Prepare MMIO operation. First stash it in a private
-	 * structure that we can use for in-kernel emulation. If the
-	 * kernel can't handle it, copy it into run->mmio and let user
-	 * space do its magic.
+	 * Prepare MMIO operation. First decode the syndrome data we get
+	 * from the CPU. Then try if some in-kernel emulation feels
+	 * responsible, otherwise let user space do its magic.
 	 */
-
 	if (kvm_vcpu_dabt_isvalid(vcpu)) {
-		ret = decode_hsr(vcpu, fault_ipa, &mmio);
+		ret = decode_hsr(vcpu, &is_write, &len);
 		if (ret)
 			return ret;
 	} else {
@@ -188,21 +185,34 @@ int io_mem_abort(struct kvm_vcpu *vcpu, struct kvm_run *run,
 
 	rt = vcpu->arch.mmio_decode.rt;
 
-	if (mmio.is_write) {
-		data = vcpu_data_guest_to_host(vcpu, *vcpu_reg(vcpu, rt),
-					       mmio.len);
+	if (is_write) {
+		data = vcpu_data_guest_to_host(vcpu, *vcpu_reg(vcpu, rt), len);
+
+		trace_kvm_mmio(KVM_TRACE_MMIO_WRITE, len, fault_ipa, data);
+		mmio_write_buf(data_buf, len, data);
 
-		trace_kvm_mmio(KVM_TRACE_MMIO_WRITE, mmio.len,
-			       fault_ipa, data);
-		mmio_write_buf(mmio.data, mmio.len, data);
+		ret = kvm_io_bus_write(vcpu, KVM_MMIO_BUS, fault_ipa, len,
+				       data_buf);
 	} else {
-		trace_kvm_mmio(KVM_TRACE_MMIO_READ_UNSATISFIED, mmio.len,
+		trace_kvm_mmio(KVM_TRACE_MMIO_READ_UNSATISFIED, len,
 			       fault_ipa, 0);
+
+		ret = kvm_io_bus_read(vcpu, KVM_MMIO_BUS, fault_ipa, len,
+				      data_buf);
 	}
 
-	if (vgic_handle_mmio(vcpu, run, &mmio))
+	/* Now prepare kvm_run for the potential return to userland. */
+	run->mmio.is_write	= is_write;
+	run->mmio.phys_addr	= fault_ipa;
+	run->mmio.len		= len;
+	memcpy(run->mmio.data, data_buf, len);
+
+	if (!ret) {
+		/* We handled the access successfully in the kernel. */
+		kvm_handle_mmio_return(vcpu, run);
 		return 1;
+	}
 
-	kvm_prepare_mmio(run, &mmio);
+	run->exit_reason	= KVM_EXIT_MMIO;
 	return 0;
 }
diff --git a/arch/arm/kvm/mmu.c b/arch/arm/kvm/mmu.c
index 3e6859b..15b050d 100644
--- a/arch/arm/kvm/mmu.c
+++ b/arch/arm/kvm/mmu.c
@@ -290,7 +290,7 @@ static void unmap_range(struct kvm *kvm, pgd_t *pgdp,
 	phys_addr_t addr = start, end = start + size;
 	phys_addr_t next;
 
-	pgd = pgdp + pgd_index(addr);
+	pgd = pgdp + kvm_pgd_index(addr);
 	do {
 		next = kvm_pgd_addr_end(addr, end);
 		if (!pgd_none(*pgd))
@@ -355,7 +355,7 @@ static void stage2_flush_memslot(struct kvm *kvm,
 	phys_addr_t next;
 	pgd_t *pgd;
 
-	pgd = kvm->arch.pgd + pgd_index(addr);
+	pgd = kvm->arch.pgd + kvm_pgd_index(addr);
 	do {
 		next = kvm_pgd_addr_end(addr, end);
 		stage2_flush_puds(kvm, pgd, addr, next);
@@ -632,6 +632,20 @@ int create_hyp_io_mappings(void *from, void *to, phys_addr_t phys_addr)
 				     __phys_to_pfn(phys_addr), PAGE_HYP_DEVICE);
 }
 
+/* Free the HW pgd, one page at a time */
+static void kvm_free_hwpgd(void *hwpgd)
+{
+	free_pages_exact(hwpgd, kvm_get_hwpgd_size());
+}
+
+/* Allocate the HW PGD, making sure that each page gets its own refcount */
+static void *kvm_alloc_hwpgd(void)
+{
+	unsigned int size = kvm_get_hwpgd_size();
+
+	return alloc_pages_exact(size, GFP_KERNEL | __GFP_ZERO);
+}
+
 /**
  * kvm_alloc_stage2_pgd - allocate level-1 table for stage-2 translation.
  * @kvm:	The KVM struct pointer for the VM.
@@ -645,15 +659,31 @@ int create_hyp_io_mappings(void *from, void *to, phys_addr_t phys_addr)
  */
 int kvm_alloc_stage2_pgd(struct kvm *kvm)
 {
-	int ret;
 	pgd_t *pgd;
+	void *hwpgd;
 
 	if (kvm->arch.pgd != NULL) {
 		kvm_err("kvm_arch already initialized?\n");
 		return -EINVAL;
 	}
 
+	hwpgd = kvm_alloc_hwpgd();
+	if (!hwpgd)
+		return -ENOMEM;
+
+	/* When the kernel uses more levels of page tables than the
+	 * guest, we allocate a fake PGD and pre-populate it to point
+	 * to the next-level page table, which will be the real
+	 * initial page table pointed to by the VTTBR.
+	 *
+	 * When KVM_PREALLOC_LEVEL==2, we allocate a single page for
+	 * the PMD and the kernel will use folded pud.
+	 * When KVM_PREALLOC_LEVEL==1, we allocate 2 consecutive PUD
+	 * pages.
+	 */
 	if (KVM_PREALLOC_LEVEL > 0) {
+		int i;
+
 		/*
 		 * Allocate fake pgd for the page table manipulation macros to
 		 * work.  This is not used by the hardware and we have no
@@ -661,30 +691,32 @@ int kvm_alloc_stage2_pgd(struct kvm *kvm)
 		 */
 		pgd = (pgd_t *)kmalloc(PTRS_PER_S2_PGD * sizeof(pgd_t),
 				       GFP_KERNEL | __GFP_ZERO);
+
+		if (!pgd) {
+			kvm_free_hwpgd(hwpgd);
+			return -ENOMEM;
+		}
+
+		/* Plug the HW PGD into the fake one. */
+		for (i = 0; i < PTRS_PER_S2_PGD; i++) {
+			if (KVM_PREALLOC_LEVEL == 1)
+				pgd_populate(NULL, pgd + i,
+					     (pud_t *)hwpgd + i * PTRS_PER_PUD);
+			else if (KVM_PREALLOC_LEVEL == 2)
+				pud_populate(NULL, pud_offset(pgd, 0) + i,
+					     (pmd_t *)hwpgd + i * PTRS_PER_PMD);
+		}
 	} else {
 		/*
 		 * Allocate actual first-level Stage-2 page table used by the
 		 * hardware for Stage-2 page table walks.
 		 */
-		pgd = (pgd_t *)__get_free_pages(GFP_KERNEL | __GFP_ZERO, S2_PGD_ORDER);
+		pgd = (pgd_t *)hwpgd;
 	}
 
-	if (!pgd)
-		return -ENOMEM;
-
-	ret = kvm_prealloc_hwpgd(kvm, pgd);
-	if (ret)
-		goto out_err;
-
 	kvm_clean_pgd(pgd);
 	kvm->arch.pgd = pgd;
 	return 0;
-out_err:
-	if (KVM_PREALLOC_LEVEL > 0)
-		kfree(pgd);
-	else
-		free_pages((unsigned long)pgd, S2_PGD_ORDER);
-	return ret;
 }
 
 /**
@@ -785,11 +817,10 @@ void kvm_free_stage2_pgd(struct kvm *kvm)
 		return;
 
 	unmap_stage2_range(kvm, 0, KVM_PHYS_SIZE);
-	kvm_free_hwpgd(kvm);
+	kvm_free_hwpgd(kvm_get_hwpgd(kvm));
 	if (KVM_PREALLOC_LEVEL > 0)
 		kfree(kvm->arch.pgd);
-	else
-		free_pages((unsigned long)kvm->arch.pgd, S2_PGD_ORDER);
+
 	kvm->arch.pgd = NULL;
 }
 
@@ -799,7 +830,7 @@ static pud_t *stage2_get_pud(struct kvm *kvm, struct kvm_mmu_memory_cache *cache
 	pgd_t *pgd;
 	pud_t *pud;
 
-	pgd = kvm->arch.pgd + pgd_index(addr);
+	pgd = kvm->arch.pgd + kvm_pgd_index(addr);
 	if (WARN_ON(pgd_none(*pgd))) {
 		if (!cache)
 			return NULL;
@@ -1089,7 +1120,7 @@ static void stage2_wp_range(struct kvm *kvm, phys_addr_t addr, phys_addr_t end)
 	pgd_t *pgd;
 	phys_addr_t next;
 
-	pgd = kvm->arch.pgd + pgd_index(addr);
+	pgd = kvm->arch.pgd + kvm_pgd_index(addr);
 	do {
 		/*
 		 * Release kvm_mmu_lock periodically if the memory region is
@@ -1299,10 +1330,51 @@ static int user_mem_abort(struct kvm_vcpu *vcpu, phys_addr_t fault_ipa,
 
 out_unlock:
 	spin_unlock(&kvm->mmu_lock);
+	kvm_set_pfn_accessed(pfn);
 	kvm_release_pfn_clean(pfn);
 	return ret;
 }
 
+/*
+ * Resolve the access fault by making the page young again.
+ * Note that because the faulting entry is guaranteed not to be
+ * cached in the TLB, we don't need to invalidate anything.
+ */
+static void handle_access_fault(struct kvm_vcpu *vcpu, phys_addr_t fault_ipa)
+{
+	pmd_t *pmd;
+	pte_t *pte;
+	pfn_t pfn;
+	bool pfn_valid = false;
+
+	trace_kvm_access_fault(fault_ipa);
+
+	spin_lock(&vcpu->kvm->mmu_lock);
+
+	pmd = stage2_get_pmd(vcpu->kvm, NULL, fault_ipa);
+	if (!pmd || pmd_none(*pmd))	/* Nothing there */
+		goto out;
+
+	if (kvm_pmd_huge(*pmd)) {	/* THP, HugeTLB */
+		*pmd = pmd_mkyoung(*pmd);
+		pfn = pmd_pfn(*pmd);
+		pfn_valid = true;
+		goto out;
+	}
+
+	pte = pte_offset_kernel(pmd, fault_ipa);
+	if (pte_none(*pte))		/* Nothing there either */
+		goto out;
+
+	*pte = pte_mkyoung(*pte);	/* Just a page... */
+	pfn = pte_pfn(*pte);
+	pfn_valid = true;
+out:
+	spin_unlock(&vcpu->kvm->mmu_lock);
+	if (pfn_valid)
+		kvm_set_pfn_accessed(pfn);
+}
+
 /**
  * kvm_handle_guest_abort - handles all 2nd stage aborts
  * @vcpu:	the VCPU pointer
@@ -1333,7 +1405,8 @@ int kvm_handle_guest_abort(struct kvm_vcpu *vcpu, struct kvm_run *run)
 
 	/* Check the stage-2 fault is trans. fault or write fault */
 	fault_status = kvm_vcpu_trap_get_fault_type(vcpu);
-	if (fault_status != FSC_FAULT && fault_status != FSC_PERM) {
+	if (fault_status != FSC_FAULT && fault_status != FSC_PERM &&
+	    fault_status != FSC_ACCESS) {
 		kvm_err("Unsupported FSC: EC=%#x xFSC=%#lx ESR_EL2=%#lx\n",
 			kvm_vcpu_trap_get_class(vcpu),
 			(unsigned long)kvm_vcpu_trap_get_fault(vcpu),
@@ -1369,6 +1442,12 @@ int kvm_handle_guest_abort(struct kvm_vcpu *vcpu, struct kvm_run *run)
 	/* Userspace should not be able to register out-of-bounds IPAs */
 	VM_BUG_ON(fault_ipa >= KVM_PHYS_SIZE);
 
+	if (fault_status == FSC_ACCESS) {
+		handle_access_fault(vcpu, fault_ipa);
+		ret = 1;
+		goto out_unlock;
+	}
+
 	ret = user_mem_abort(vcpu, fault_ipa, memslot, hva, fault_status);
 	if (ret == 0)
 		ret = 1;
@@ -1377,15 +1456,16 @@ out_unlock:
 	return ret;
 }
 
-static void handle_hva_to_gpa(struct kvm *kvm,
-			      unsigned long start,
-			      unsigned long end,
-			      void (*handler)(struct kvm *kvm,
-					      gpa_t gpa, void *data),
-			      void *data)
+static int handle_hva_to_gpa(struct kvm *kvm,
+			     unsigned long start,
+			     unsigned long end,
+			     int (*handler)(struct kvm *kvm,
+					    gpa_t gpa, void *data),
+			     void *data)
 {
 	struct kvm_memslots *slots;
 	struct kvm_memory_slot *memslot;
+	int ret = 0;
 
 	slots = kvm_memslots(kvm);
 
@@ -1409,14 +1489,17 @@ static void handle_hva_to_gpa(struct kvm *kvm,
 
 		for (; gfn < gfn_end; ++gfn) {
 			gpa_t gpa = gfn << PAGE_SHIFT;
-			handler(kvm, gpa, data);
+			ret |= handler(kvm, gpa, data);
 		}
 	}
+
+	return ret;
 }
 
-static void kvm_unmap_hva_handler(struct kvm *kvm, gpa_t gpa, void *data)
+static int kvm_unmap_hva_handler(struct kvm *kvm, gpa_t gpa, void *data)
 {
 	unmap_stage2_range(kvm, gpa, PAGE_SIZE);
+	return 0;
 }
 
 int kvm_unmap_hva(struct kvm *kvm, unsigned long hva)
@@ -1442,7 +1525,7 @@ int kvm_unmap_hva_range(struct kvm *kvm,
 	return 0;
 }
 
-static void kvm_set_spte_handler(struct kvm *kvm, gpa_t gpa, void *data)
+static int kvm_set_spte_handler(struct kvm *kvm, gpa_t gpa, void *data)
 {
 	pte_t *pte = (pte_t *)data;
 
@@ -1454,6 +1537,7 @@ static void kvm_set_spte_handler(struct kvm *kvm, gpa_t gpa, void *data)
 	 * through this calling path.
 	 */
 	stage2_set_pte(kvm, NULL, gpa, pte, 0);
+	return 0;
 }
 
 
@@ -1470,6 +1554,67 @@ void kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte)
 	handle_hva_to_gpa(kvm, hva, end, &kvm_set_spte_handler, &stage2_pte);
 }
 
+static int kvm_age_hva_handler(struct kvm *kvm, gpa_t gpa, void *data)
+{
+	pmd_t *pmd;
+	pte_t *pte;
+
+	pmd = stage2_get_pmd(kvm, NULL, gpa);
+	if (!pmd || pmd_none(*pmd))	/* Nothing there */
+		return 0;
+
+	if (kvm_pmd_huge(*pmd)) {	/* THP, HugeTLB */
+		if (pmd_young(*pmd)) {
+			*pmd = pmd_mkold(*pmd);
+			return 1;
+		}
+
+		return 0;
+	}
+
+	pte = pte_offset_kernel(pmd, gpa);
+	if (pte_none(*pte))
+		return 0;
+
+	if (pte_young(*pte)) {
+		*pte = pte_mkold(*pte);	/* Just a page... */
+		return 1;
+	}
+
+	return 0;
+}
+
+static int kvm_test_age_hva_handler(struct kvm *kvm, gpa_t gpa, void *data)
+{
+	pmd_t *pmd;
+	pte_t *pte;
+
+	pmd = stage2_get_pmd(kvm, NULL, gpa);
+	if (!pmd || pmd_none(*pmd))	/* Nothing there */
+		return 0;
+
+	if (kvm_pmd_huge(*pmd))		/* THP, HugeTLB */
+		return pmd_young(*pmd);
+
+	pte = pte_offset_kernel(pmd, gpa);
+	if (!pte_none(*pte))		/* Just a page... */
+		return pte_young(*pte);
+
+	return 0;
+}
+
+int kvm_age_hva(struct kvm *kvm, unsigned long start, unsigned long end)
+{
+	trace_kvm_age_hva(start, end);
+	return handle_hva_to_gpa(kvm, start, end, kvm_age_hva_handler, NULL);
+}
+
+int kvm_test_age_hva(struct kvm *kvm, unsigned long hva)
+{
+	trace_kvm_test_age_hva(hva);
+	return handle_hva_to_gpa(kvm, hva, hva, kvm_test_age_hva_handler, NULL);
+}
+
 void kvm_mmu_free_memory_caches(struct kvm_vcpu *vcpu)
 {
 	mmu_free_memory_cache(&vcpu->arch.mmu_page_cache);
diff --git a/arch/arm/kvm/trace.h b/arch/arm/kvm/trace.h
index 881874b..0ec3539 100644
--- a/arch/arm/kvm/trace.h
+++ b/arch/arm/kvm/trace.h
@@ -25,18 +25,22 @@ TRACE_EVENT(kvm_entry,
 );
 
 TRACE_EVENT(kvm_exit,
-	TP_PROTO(unsigned long vcpu_pc),
-	TP_ARGS(vcpu_pc),
+	TP_PROTO(unsigned int exit_reason, unsigned long vcpu_pc),
+	TP_ARGS(exit_reason, vcpu_pc),
 
 	TP_STRUCT__entry(
+		__field(	unsigned int,	exit_reason	)
 		__field(	unsigned long,	vcpu_pc		)
 	),
 
 	TP_fast_assign(
+		__entry->exit_reason		= exit_reason;
 		__entry->vcpu_pc		= vcpu_pc;
 	),
 
-	TP_printk("PC: 0x%08lx", __entry->vcpu_pc)
+	TP_printk("HSR_EC: 0x%04x, PC: 0x%08lx",
+		  __entry->exit_reason,
+		  __entry->vcpu_pc)
 );
 
 TRACE_EVENT(kvm_guest_fault,
@@ -64,6 +68,21 @@ TRACE_EVENT(kvm_guest_fault,
 		  __entry->hxfar, __entry->vcpu_pc)
 );
 
+TRACE_EVENT(kvm_access_fault,
+	TP_PROTO(unsigned long ipa),
+	TP_ARGS(ipa),
+
+	TP_STRUCT__entry(
+		__field(	unsigned long,	ipa		)
+	),
+
+	TP_fast_assign(
+		__entry->ipa		= ipa;
+	),
+
+	TP_printk("IPA: %lx", __entry->ipa)
+);
+
 TRACE_EVENT(kvm_irq_line,
 	TP_PROTO(unsigned int type, int vcpu_idx, int irq_num, int level),
 	TP_ARGS(type, vcpu_idx, irq_num, level),
@@ -206,6 +225,39 @@ TRACE_EVENT(kvm_set_spte_hva,
 	TP_printk("mmu notifier set pte hva: %#08lx", __entry->hva)
 );
 
+TRACE_EVENT(kvm_age_hva,
+	TP_PROTO(unsigned long start, unsigned long end),
+	TP_ARGS(start, end),
+
+	TP_STRUCT__entry(
+		__field(	unsigned long,	start		)
+		__field(	unsigned long,	end		)
+	),
+
+	TP_fast_assign(
+		__entry->start		= start;
+		__entry->end		= end;
+	),
+
+	TP_printk("mmu notifier age hva: %#08lx -- %#08lx",
+		  __entry->start, __entry->end)
+);
+
+TRACE_EVENT(kvm_test_age_hva,
+	TP_PROTO(unsigned long hva),
+	TP_ARGS(hva),
+
+	TP_STRUCT__entry(
+		__field(	unsigned long,	hva		)
+	),
+
+	TP_fast_assign(
+		__entry->hva		= hva;
+	),
+
+	TP_printk("mmu notifier test age hva: %#08lx", __entry->hva)
+);
+
 TRACE_EVENT(kvm_hvc,
 	TP_PROTO(unsigned long vcpu_pc, unsigned long r0, unsigned long imm),
 	TP_ARGS(vcpu_pc, r0, imm),
diff --git a/arch/arm/mach-asm9260/Kconfig b/arch/arm/mach-asm9260/Kconfig
index 8423be7..5224120 100644
--- a/arch/arm/mach-asm9260/Kconfig
+++ b/arch/arm/mach-asm9260/Kconfig
@@ -2,5 +2,7 @@ config MACH_ASM9260
 	bool "Alphascale ASM9260"
 	depends on ARCH_MULTI_V5
 	select CPU_ARM926T
+	select ASM9260_TIMER
+	select GENERIC_CLOCKEVENTS
 	help
 	  Support for Alphascale ASM9260 based platform.
diff --git a/arch/arm/mach-at91/pm.c b/arch/arm/mach-at91/pm.c
index 5e34fb1..aa4116e 100644
--- a/arch/arm/mach-at91/pm.c
+++ b/arch/arm/mach-at91/pm.c
@@ -270,37 +270,35 @@ static void __init at91_pm_sram_init(void)
 	phys_addr_t sram_pbase;
 	unsigned long sram_base;
 	struct device_node *node;
-	struct platform_device *pdev;
+	struct platform_device *pdev = NULL;
 
-	node = of_find_compatible_node(NULL, NULL, "mmio-sram");
-	if (!node) {
-		pr_warn("%s: failed to find sram node!\n", __func__);
-		return;
+	for_each_compatible_node(node, NULL, "mmio-sram") {
+		pdev = of_find_device_by_node(node);
+		if (pdev) {
+			of_node_put(node);
+			break;
+		}
 	}
 
-	pdev = of_find_device_by_node(node);
 	if (!pdev) {
 		pr_warn("%s: failed to find sram device!\n", __func__);
-		goto put_node;
+		return;
 	}
 
 	sram_pool = dev_get_gen_pool(&pdev->dev);
 	if (!sram_pool) {
 		pr_warn("%s: sram pool unavailable!\n", __func__);
-		goto put_node;
+		return;
 	}
 
 	sram_base = gen_pool_alloc(sram_pool, at91_slow_clock_sz);
 	if (!sram_base) {
 		pr_warn("%s: unable to alloc ocram!\n", __func__);
-		goto put_node;
+		return;
 	}
 
 	sram_pbase = gen_pool_virt_to_phys(sram_pool, sram_base);
 	slow_clock = __arm_ioremap_exec(sram_pbase, at91_slow_clock_sz, false);
-
-put_node:
-	of_node_put(node);
 }
 #endif
 
diff --git a/arch/arm/mach-at91/pm.h b/arch/arm/mach-at91/pm.h
index d2c8996..86c0aa8 100644
--- a/arch/arm/mach-at91/pm.h
+++ b/arch/arm/mach-at91/pm.h
@@ -44,7 +44,7 @@ static inline void at91rm9200_standby(void)
 		"    mcr    p15, 0, %0, c7, c0, 4\n\t"
 		"    str    %5, [%1, %2]"
 		:
-		: "r" (0), "r" (AT91_BASE_SYS), "r" (AT91RM9200_SDRAMC_LPR),
+		: "r" (0), "r" (at91_ramc_base[0]), "r" (AT91RM9200_SDRAMC_LPR),
 		  "r" (1), "r" (AT91RM9200_SDRAMC_SRR),
 		  "r" (lpr));
 }
diff --git a/arch/arm/mach-at91/pm_slowclock.S b/arch/arm/mach-at91/pm_slowclock.S
index 556151e8..931f0e3 100644
--- a/arch/arm/mach-at91/pm_slowclock.S
+++ b/arch/arm/mach-at91/pm_slowclock.S
@@ -25,11 +25,6 @@
  */
 #undef SLOWDOWN_MASTER_CLOCK
 
-#define MCKRDY_TIMEOUT		1000
-#define MOSCRDY_TIMEOUT 	1000
-#define PLLALOCK_TIMEOUT	1000
-#define PLLBLOCK_TIMEOUT	1000
-
 pmc	.req	r0
 sdramc	.req	r1
 ramc1	.req	r2
@@ -41,60 +36,42 @@ tmp2	.req	r5
  * Wait until master clock is ready (after switching master clock source)
  */
 	.macro wait_mckrdy
-	mov	tmp2, #MCKRDY_TIMEOUT
-1:	sub	tmp2, tmp2, #1
-	cmp	tmp2, #0
-	beq	2f
-	ldr	tmp1, [pmc, #AT91_PMC_SR]
+1:	ldr	tmp1, [pmc, #AT91_PMC_SR]
 	tst	tmp1, #AT91_PMC_MCKRDY
 	beq	1b
-2:
 	.endm
 
 /*
  * Wait until master oscillator has stabilized.
  */
 	.macro wait_moscrdy
-	mov	tmp2, #MOSCRDY_TIMEOUT
-1:	sub	tmp2, tmp2, #1
-	cmp	tmp2, #0
-	beq	2f
-	ldr	tmp1, [pmc, #AT91_PMC_SR]
+1:	ldr	tmp1, [pmc, #AT91_PMC_SR]
 	tst	tmp1, #AT91_PMC_MOSCS
 	beq	1b
-2:
 	.endm
 
 /*
  * Wait until PLLA has locked.
  */
 	.macro wait_pllalock
-	mov	tmp2, #PLLALOCK_TIMEOUT
-1:	sub	tmp2, tmp2, #1
-	cmp	tmp2, #0
-	beq	2f
-	ldr	tmp1, [pmc, #AT91_PMC_SR]
+1:	ldr	tmp1, [pmc, #AT91_PMC_SR]
 	tst	tmp1, #AT91_PMC_LOCKA
 	beq	1b
-2:
 	.endm
 
 /*
  * Wait until PLLB has locked.
  */
 	.macro wait_pllblock
-	mov	tmp2, #PLLBLOCK_TIMEOUT
-1:	sub	tmp2, tmp2, #1
-	cmp	tmp2, #0
-	beq	2f
-	ldr	tmp1, [pmc, #AT91_PMC_SR]
+1:	ldr	tmp1, [pmc, #AT91_PMC_SR]
 	tst	tmp1, #AT91_PMC_LOCKB
 	beq	1b
-2:
 	.endm
 
 	.text
 
+	.arm
+
 /* void at91_slow_clock(void __iomem *pmc, void __iomem *sdramc,
  *			void __iomem *ramc1, int memctrl)
  */
@@ -134,6 +111,16 @@ ddr_sr_enable:
 	cmp	memctrl, #AT91_MEMCTRL_DDRSDR
 	bne	sdr_sr_enable
 
+	/* LPDDR1 --> force DDR2 mode during self-refresh */
+	ldr	tmp1, [sdramc, #AT91_DDRSDRC_MDR]
+	str	tmp1, .saved_sam9_mdr
+	bic	tmp1, tmp1, #~AT91_DDRSDRC_MD
+	cmp	tmp1, #AT91_DDRSDRC_MD_LOW_POWER_DDR
+	ldreq	tmp1, [sdramc, #AT91_DDRSDRC_MDR]
+	biceq	tmp1, tmp1, #AT91_DDRSDRC_MD
+	orreq	tmp1, tmp1, #AT91_DDRSDRC_MD_DDR2
+	streq	tmp1, [sdramc, #AT91_DDRSDRC_MDR]
+
 	/* prepare for DDRAM self-refresh mode */
 	ldr	tmp1, [sdramc, #AT91_DDRSDRC_LPR]
 	str	tmp1, .saved_sam9_lpr
@@ -142,14 +129,26 @@ ddr_sr_enable:
 
 	/* figure out if we use the second ram controller */
 	cmp	ramc1, #0
-	ldrne	tmp2, [ramc1, #AT91_DDRSDRC_LPR]
-	strne	tmp2, .saved_sam9_lpr1
-	bicne	tmp2, #AT91_DDRSDRC_LPCB
-	orrne	tmp2, #AT91_DDRSDRC_LPCB_SELF_REFRESH
+	beq	ddr_no_2nd_ctrl
+
+	ldr	tmp2, [ramc1, #AT91_DDRSDRC_MDR]
+	str	tmp2, .saved_sam9_mdr1
+	bic	tmp2, tmp2, #~AT91_DDRSDRC_MD
+	cmp	tmp2, #AT91_DDRSDRC_MD_LOW_POWER_DDR
+	ldreq	tmp2, [ramc1, #AT91_DDRSDRC_MDR]
+	biceq	tmp2, tmp2, #AT91_DDRSDRC_MD
+	orreq	tmp2, tmp2, #AT91_DDRSDRC_MD_DDR2
+	streq	tmp2, [ramc1, #AT91_DDRSDRC_MDR]
+
+	ldr	tmp2, [ramc1, #AT91_DDRSDRC_LPR]
+	str	tmp2, .saved_sam9_lpr1
+	bic	tmp2, #AT91_DDRSDRC_LPCB
+	orr	tmp2, #AT91_DDRSDRC_LPCB_SELF_REFRESH
 
 	/* Enable DDRAM self-refresh mode */
+	str	tmp2, [ramc1, #AT91_DDRSDRC_LPR]
+ddr_no_2nd_ctrl:
 	str	tmp1, [sdramc, #AT91_DDRSDRC_LPR]
-	strne	tmp2, [ramc1, #AT91_DDRSDRC_LPR]
 
 	b	sdr_sr_done
 
@@ -208,6 +207,7 @@ sdr_sr_done:
 	/* Turn off the main oscillator */
 	ldr	tmp1, [pmc, #AT91_CKGR_MOR]
 	bic	tmp1, tmp1, #AT91_PMC_MOSCEN
+	orr	tmp1, tmp1, #AT91_PMC_KEY
 	str	tmp1, [pmc, #AT91_CKGR_MOR]
 
 	/* Wait for interrupt */
@@ -216,6 +216,7 @@ sdr_sr_done:
 	/* Turn on the main oscillator */
 	ldr	tmp1, [pmc, #AT91_CKGR_MOR]
 	orr	tmp1, tmp1, #AT91_PMC_MOSCEN
+	orr	tmp1, tmp1, #AT91_PMC_KEY
 	str	tmp1, [pmc, #AT91_CKGR_MOR]
 
 	wait_moscrdy
@@ -280,12 +281,17 @@ sdr_sr_done:
 	 */
 	cmp	memctrl, #AT91_MEMCTRL_DDRSDR
 	bne	sdr_en_restore
+	/* Restore MDR in case of LPDDR1 */
+	ldr	tmp1, .saved_sam9_mdr
+	str	tmp1, [sdramc, #AT91_DDRSDRC_MDR]
 	/* Restore LPR on AT91 with DDRAM */
 	ldr	tmp1, .saved_sam9_lpr
 	str	tmp1, [sdramc, #AT91_DDRSDRC_LPR]
 
 	/* if we use the second ram controller */
 	cmp	ramc1, #0
+	ldrne	tmp2, .saved_sam9_mdr1
+	strne	tmp2, [ramc1, #AT91_DDRSDRC_MDR]
 	ldrne	tmp2, .saved_sam9_lpr1
 	strne	tmp2, [ramc1, #AT91_DDRSDRC_LPR]
 
@@ -319,5 +325,11 @@ ram_restored:
 .saved_sam9_lpr1:
 	.word 0
 
+.saved_sam9_mdr:
+	.word 0
+
+.saved_sam9_mdr1:
+	.word 0
+
 ENTRY(at91_slow_clock_sz)
 	.word .-at91_slow_clock
diff --git a/arch/arm/mach-dove/pcie.c b/arch/arm/mach-dove/pcie.c
index 8a275f2..91fe971 100644
--- a/arch/arm/mach-dove/pcie.c
+++ b/arch/arm/mach-dove/pcie.c
@@ -155,17 +155,13 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MARVELL, PCI_ANY_ID, rc_pci_fixup);
 static struct pci_bus __init *
 dove_pcie_scan_bus(int nr, struct pci_sys_data *sys)
 {
-	struct pci_bus *bus;
-
-	if (nr < num_pcie_ports) {
-		bus = pci_scan_root_bus(NULL, sys->busnr, &pcie_ops, sys,
-					&sys->resources);
-	} else {
-		bus = NULL;
+	if (nr >= num_pcie_ports) {
 		BUG();
+		return NULL;
 	}
 
-	return bus;
+	return pci_scan_root_bus(NULL, sys->busnr, &pcie_ops, sys,
+				 &sys->resources);
 }
 
 static int __init dove_pcie_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
diff --git a/arch/arm/mach-exynos/exynos.c b/arch/arm/mach-exynos/exynos.c
index 9e9dfdf..f44c2e0 100644
--- a/arch/arm/mach-exynos/exynos.c
+++ b/arch/arm/mach-exynos/exynos.c
@@ -166,16 +166,14 @@ static void __init exynos_init_io(void)
 	exynos_map_io();
 }
 
+/*
+ * Apparently, these SoCs are not able to wake-up from suspend using
+ * the PMU. Too bad. Should they suddenly become capable of such a
+ * feat, the matches below should be moved to suspend.c.
+ */
 static const struct of_device_id exynos_dt_pmu_match[] = {
-	{ .compatible = "samsung,exynos3250-pmu" },
-	{ .compatible = "samsung,exynos4210-pmu" },
-	{ .compatible = "samsung,exynos4212-pmu" },
-	{ .compatible = "samsung,exynos4412-pmu" },
-	{ .compatible = "samsung,exynos4415-pmu" },
-	{ .compatible = "samsung,exynos5250-pmu" },
 	{ .compatible = "samsung,exynos5260-pmu" },
 	{ .compatible = "samsung,exynos5410-pmu" },
-	{ .compatible = "samsung,exynos5420-pmu" },
 	{ /*sentinel*/ },
 };
 
@@ -186,9 +184,6 @@ static void exynos_map_pmu(void)
 	np = of_find_matching_node(NULL, exynos_dt_pmu_match);
 	if (np)
 		pmu_base_addr = of_iomap(np, 0);
-
-	if (!pmu_base_addr)
-		panic("failed to find exynos pmu register\n");
 }
 
 static void __init exynos_init_irq(void)
diff --git a/arch/arm/mach-exynos/platsmp.c b/arch/arm/mach-exynos/platsmp.c
index 3f32c47..d2e9f12 100644
--- a/arch/arm/mach-exynos/platsmp.c
+++ b/arch/arm/mach-exynos/platsmp.c
@@ -126,8 +126,7 @@ static inline void platform_do_lowpower(unsigned int cpu, int *spurious)
  */
 void exynos_cpu_power_down(int cpu)
 {
-	if (cpu == 0 && (of_machine_is_compatible("samsung,exynos5420") ||
-		of_machine_is_compatible("samsung,exynos5800"))) {
+	if (cpu == 0 && (soc_is_exynos5420() || soc_is_exynos5800())) {
 		/*
 		 * Bypass power down for CPU0 during suspend. Check for
 		 * the SYS_PWR_REG value to decide if we are suspending
diff --git a/arch/arm/mach-exynos/pm_domains.c b/arch/arm/mach-exynos/pm_domains.c
index 20f2671..37266a8 100644
--- a/arch/arm/mach-exynos/pm_domains.c
+++ b/arch/arm/mach-exynos/pm_domains.c
@@ -161,6 +161,34 @@ no_clk:
 		of_genpd_add_provider_simple(np, &pd->pd);
 	}
 
+	/* Assign the child power domains to their parents */
+	for_each_compatible_node(np, NULL, "samsung,exynos4210-pd") {
+		struct generic_pm_domain *child_domain, *parent_domain;
+		struct of_phandle_args args;
+
+		args.np = np;
+		args.args_count = 0;
+		child_domain = of_genpd_get_from_provider(&args);
+		if (!child_domain)
+			continue;
+
+		if (of_parse_phandle_with_args(np, "power-domains",
+					 "#power-domain-cells", 0, &args) != 0)
+			continue;
+
+		parent_domain = of_genpd_get_from_provider(&args);
+		if (!parent_domain)
+			continue;
+
+		if (pm_genpd_add_subdomain(parent_domain, child_domain))
+			pr_warn("%s failed to add subdomain: %s\n",
+				parent_domain->name, child_domain->name);
+		else
+			pr_info("%s has as child subdomain: %s.\n",
+				parent_domain->name, child_domain->name);
+		of_node_put(np);
+	}
+
 	return 0;
 }
 arch_initcall(exynos4_pm_init_power_domain);
diff --git a/arch/arm/mach-exynos/suspend.c b/arch/arm/mach-exynos/suspend.c
index 52e2b1a..2146d91 100644
--- a/arch/arm/mach-exynos/suspend.c
+++ b/arch/arm/mach-exynos/suspend.c
@@ -18,7 +18,9 @@
 #include <linux/syscore_ops.h>
 #include <linux/cpu_pm.h>
 #include <linux/io.h>
-#include <linux/irqchip/arm-gic.h>
+#include <linux/irq.h>
+#include <linux/irqdomain.h>
+#include <linux/of_address.h>
 #include <linux/err.h>
 #include <linux/regulator/machine.h>
 
@@ -43,8 +45,8 @@
 #define EXYNOS5420_CPU_STATE	0x28
 
 /**
- * struct exynos_wkup_irq - Exynos GIC to PMU IRQ mapping
- * @hwirq: Hardware IRQ signal of the GIC
+ * struct exynos_wkup_irq - PMU IRQ to mask mapping
+ * @hwirq: Hardware IRQ signal of the PMU
  * @mask: Mask in PMU wake-up mask register
  */
 struct exynos_wkup_irq {
@@ -87,20 +89,20 @@ static unsigned int exynos_pmu_spare3;
 static u32 exynos_irqwake_intmask = 0xffffffff;
 
 static const struct exynos_wkup_irq exynos3250_wkup_irq[] = {
-	{ 73, BIT(1) }, /* RTC alarm */
-	{ 74, BIT(2) }, /* RTC tick */
+	{ 105, BIT(1) }, /* RTC alarm */
+	{ 106, BIT(2) }, /* RTC tick */
 	{ /* sentinel */ },
 };
 
 static const struct exynos_wkup_irq exynos4_wkup_irq[] = {
-	{ 76, BIT(1) }, /* RTC alarm */
-	{ 77, BIT(2) }, /* RTC tick */
+	{ 44, BIT(1) }, /* RTC alarm */
+	{ 45, BIT(2) }, /* RTC tick */
 	{ /* sentinel */ },
 };
 
 static const struct exynos_wkup_irq exynos5250_wkup_irq[] = {
-	{ 75, BIT(1) }, /* RTC alarm */
-	{ 76, BIT(2) }, /* RTC tick */
+	{ 43, BIT(1) }, /* RTC alarm */
+	{ 44, BIT(2) }, /* RTC tick */
 	{ /* sentinel */ },
 };
 
@@ -167,6 +169,113 @@ static int exynos_irq_set_wake(struct irq_data *data, unsigned int state)
 	return -ENOENT;
 }
 
+static struct irq_chip exynos_pmu_chip = {
+	.name			= "PMU",
+	.irq_eoi		= irq_chip_eoi_parent,
+	.irq_mask		= irq_chip_mask_parent,
+	.irq_unmask		= irq_chip_unmask_parent,
+	.irq_retrigger		= irq_chip_retrigger_hierarchy,
+	.irq_set_wake		= exynos_irq_set_wake,
+#ifdef CONFIG_SMP
+	.irq_set_affinity	= irq_chip_set_affinity_parent,
+#endif
+};
+
+static int exynos_pmu_domain_xlate(struct irq_domain *domain,
+				   struct device_node *controller,
+				   const u32 *intspec,
+				   unsigned int intsize,
+				   unsigned long *out_hwirq,
+				   unsigned int *out_type)
+{
+	if (domain->of_node != controller)
+		return -EINVAL;	/* Shouldn't happen, really... */
+	if (intsize != 3)
+		return -EINVAL;	/* Not GIC compliant */
+	if (intspec[0] != 0)
+		return -EINVAL;	/* No PPI should point to this domain */
+
+	*out_hwirq = intspec[1];
+	*out_type = intspec[2];
+	return 0;
+}
+
+static int exynos_pmu_domain_alloc(struct irq_domain *domain,
+				   unsigned int virq,
+				   unsigned int nr_irqs, void *data)
+{
+	struct of_phandle_args *args = data;
+	struct of_phandle_args parent_args;
+	irq_hw_number_t hwirq;
+	int i;
+
+	if (args->args_count != 3)
+		return -EINVAL;	/* Not GIC compliant */
+	if (args->args[0] != 0)
+		return -EINVAL;	/* No PPI should point to this domain */
+
+	hwirq = args->args[1];
+
+	for (i = 0; i < nr_irqs; i++)
+		irq_domain_set_hwirq_and_chip(domain, virq + i, hwirq + i,
+					      &exynos_pmu_chip, NULL);
+
+	parent_args = *args;
+	parent_args.np = domain->parent->of_node;
+	return irq_domain_alloc_irqs_parent(domain, virq, nr_irqs, &parent_args);
+}
+
+static struct irq_domain_ops exynos_pmu_domain_ops = {
+	.xlate	= exynos_pmu_domain_xlate,
+	.alloc	= exynos_pmu_domain_alloc,
+	.free	= irq_domain_free_irqs_common,
+};
+
+static int __init exynos_pmu_irq_init(struct device_node *node,
+				      struct device_node *parent)
+{
+	struct irq_domain *parent_domain, *domain;
+
+	if (!parent) {
+		pr_err("%s: no parent, giving up\n", node->full_name);
+		return -ENODEV;
+	}
+
+	parent_domain = irq_find_host(parent);
+	if (!parent_domain) {
+		pr_err("%s: unable to obtain parent domain\n", node->full_name);
+		return -ENXIO;
+	}
+
+	pmu_base_addr = of_iomap(node, 0);
+
+	if (!pmu_base_addr) {
+		pr_err("%s: failed to find exynos pmu register\n",
+		       node->full_name);
+		return -ENOMEM;
+	}
+
+	domain = irq_domain_add_hierarchy(parent_domain, 0, 0,
+					  node, &exynos_pmu_domain_ops,
+					  NULL);
+	if (!domain) {
+		iounmap(pmu_base_addr);
+		return -ENOMEM;
+	}
+
+	return 0;
+}
+
+#define EXYNOS_PMU_IRQ(symbol, name)	OF_DECLARE_2(irqchip, symbol, name, exynos_pmu_irq_init)
+
+EXYNOS_PMU_IRQ(exynos3250_pmu_irq, "samsung,exynos3250-pmu");
+EXYNOS_PMU_IRQ(exynos4210_pmu_irq, "samsung,exynos4210-pmu");
+EXYNOS_PMU_IRQ(exynos4212_pmu_irq, "samsung,exynos4212-pmu");
+EXYNOS_PMU_IRQ(exynos4412_pmu_irq, "samsung,exynos4412-pmu");
+EXYNOS_PMU_IRQ(exynos4415_pmu_irq, "samsung,exynos4415-pmu");
+EXYNOS_PMU_IRQ(exynos5250_pmu_irq, "samsung,exynos5250-pmu");
+EXYNOS_PMU_IRQ(exynos5420_pmu_irq, "samsung,exynos5420-pmu");
+
 static int exynos_cpu_do_idle(void)
 {
 	/* issue the standby signal into the pm unit. */
@@ -615,17 +724,19 @@ static struct syscore_ops exynos_pm_syscore_ops;
 void __init exynos_pm_init(void)
 {
 	const struct of_device_id *match;
+	struct device_node *np;
 	u32 tmp;
 
-	of_find_matching_node_and_match(NULL, exynos_pmu_of_device_ids, &match);
-	if (!match) {
+	np = of_find_matching_node_and_match(NULL, exynos_pmu_of_device_ids, &match);
+	if (!np) {
 		pr_err("Failed to find PMU node\n");
 		return;
 	}
-	pm_data = (struct exynos_pm_data *) match->data;
 
-	/* Platform-specific GIC callback */
-	gic_arch_extn.irq_set_wake = exynos_irq_set_wake;
+	if (WARN_ON(!of_find_property(np, "interrupt-controller", NULL)))
+		pr_warn("Outdated DT detected, suspend/resume will NOT work\n");
+
+	pm_data = (struct exynos_pm_data *) match->data;
 
 	/* All wakeup disable */
 	tmp = pmu_raw_readl(S5P_WAKEUP_MASK);
diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig
index e8627e0..c8dffce 100644
--- a/arch/arm/mach-imx/Kconfig
+++ b/arch/arm/mach-imx/Kconfig
@@ -631,6 +631,7 @@ config SOC_IMX6SX
 
 config SOC_VF610
 	bool "Vybrid Family VF610 support"
+	select IRQ_DOMAIN_HIERARCHY
 	select ARM_GIC
 	select PINCTRL_VF610
 	select PL310_ERRATA_769419 if CACHE_L2X0
diff --git a/arch/arm/mach-imx/mach-imx6q.c b/arch/arm/mach-imx/mach-imx6q.c
index 4ad6e47..9de3412 100644
--- a/arch/arm/mach-imx/mach-imx6q.c
+++ b/arch/arm/mach-imx/mach-imx6q.c
@@ -211,8 +211,9 @@ static void __init imx6q_1588_init(void)
 	 * set bit IOMUXC_GPR1[21].  Or the PTP clock must be from pad
 	 * (external OSC), and we need to clear the bit.
 	 */
-	clksel = ptp_clk == enet_ref ? IMX6Q_GPR1_ENET_CLK_SEL_ANATOP :
-				       IMX6Q_GPR1_ENET_CLK_SEL_PAD;
+	clksel = clk_is_match(ptp_clk, enet_ref) ?
+				IMX6Q_GPR1_ENET_CLK_SEL_ANATOP :
+				IMX6Q_GPR1_ENET_CLK_SEL_PAD;
 	gpr = syscon_regmap_lookup_by_compatible("fsl,imx6q-iomuxc-gpr");
 	if (!IS_ERR(gpr))
 		regmap_update_bits(gpr, IOMUXC_GPR1,
diff --git a/arch/arm/mach-msm/board-halibut.c b/arch/arm/mach-msm/board-halibut.c
index 61bfe58..fc83204 100644
--- a/arch/arm/mach-msm/board-halibut.c
+++ b/arch/arm/mach-msm/board-halibut.c
@@ -20,6 +20,7 @@
 #include <linux/input.h>
 #include <linux/io.h>
 #include <linux/delay.h>
+#include <linux/smc91x.h>
 
 #include <mach/hardware.h>
 #include <asm/mach-types.h>
@@ -46,15 +47,20 @@ static struct resource smc91x_resources[] = {
 	[1] = {
 		.start	= MSM_GPIO_TO_INT(49),
 		.end	= MSM_GPIO_TO_INT(49),
-		.flags	= IORESOURCE_IRQ,
+		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
 	},
 };
 
+static struct smc91x_platdata smc91x_platdata = {
+	.flags = SMC91X_USE_16BIT | SMC91X_NOWAIT,
+};
+
 static struct platform_device smc91x_device = {
 	.name		= "smc91x",
 	.id		= 0,
 	.num_resources	= ARRAY_SIZE(smc91x_resources),
 	.resource	= smc91x_resources,
+	.dev.platform_data = &smc91x_platdata,
 };
 
 static struct platform_device *devices[] __initdata = {
diff --git a/arch/arm/mach-msm/board-qsd8x50.c b/arch/arm/mach-msm/board-qsd8x50.c
index 4c74861..10016a3 100644
--- a/arch/arm/mach-msm/board-qsd8x50.c
+++ b/arch/arm/mach-msm/board-qsd8x50.c
@@ -22,6 +22,7 @@
 #include <linux/usb/msm_hsusb.h>
 #include <linux/err.h>
 #include <linux/clkdev.h>
+#include <linux/smc91x.h>
 
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
@@ -49,15 +50,20 @@ static struct resource smc91x_resources[] = {
 		.flags = IORESOURCE_MEM,
 	},
 	[1] = {
-		.flags = IORESOURCE_IRQ,
+		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
 	},
 };
 
+static struct smc91x_platdata smc91x_platdata = {
+	.flags = SMC91X_USE_16BIT | SMC91X_NOWAIT,
+};
+
 static struct platform_device smc91x_device = {
 	.name           = "smc91x",
 	.id             = 0,
 	.num_resources  = ARRAY_SIZE(smc91x_resources),
 	.resource       = smc91x_resources,
+	.dev.platform_data = &smc91x_platdata,
 };
 
 static int __init msm_init_smc91x(void)
diff --git a/arch/arm/mach-mv78xx0/pcie.c b/arch/arm/mach-mv78xx0/pcie.c
index 445e553..097ea4c 100644
--- a/arch/arm/mach-mv78xx0/pcie.c
+++ b/arch/arm/mach-mv78xx0/pcie.c
@@ -197,17 +197,13 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MARVELL, PCI_ANY_ID, rc_pci_fixup);
 static struct pci_bus __init *
 mv78xx0_pcie_scan_bus(int nr, struct pci_sys_data *sys)
 {
-	struct pci_bus *bus;
-
-	if (nr < num_pcie_ports) {
-		bus = pci_scan_root_bus(NULL, sys->busnr, &pcie_ops, sys,
-					&sys->resources);
-	} else {
-		bus = NULL;
+	if (nr >= num_pcie_ports) {
 		BUG();
+		return NULL;
 	}
 
-	return bus;
+	return pci_scan_root_bus(NULL, sys->busnr, &pcie_ops, sys,
+				 &sys->resources);
 }
 
 static int __init mv78xx0_pcie_map_irq(const struct pci_dev *dev, u8 slot,
diff --git a/arch/arm/mach-omap2/cpuidle44xx.c b/arch/arm/mach-omap2/cpuidle44xx.c
index 01e398a..57d4298 100644
--- a/arch/arm/mach-omap2/cpuidle44xx.c
+++ b/arch/arm/mach-omap2/cpuidle44xx.c
@@ -14,7 +14,7 @@
 #include <linux/cpuidle.h>
 #include <linux/cpu_pm.h>
 #include <linux/export.h>
-#include <linux/clockchips.h>
+#include <linux/tick.h>
 
 #include <asm/cpuidle.h>
 #include <asm/proc-fns.h>
@@ -84,7 +84,6 @@ static int omap_enter_idle_coupled(struct cpuidle_device *dev,
 {
 	struct idle_statedata *cx = state_ptr + index;
 	u32 mpuss_can_lose_context = 0;
-	int cpu_id = smp_processor_id();
 
 	/*
 	 * CPU0 has to wait and stay ON until CPU1 is OFF state.
@@ -112,7 +111,7 @@ static int omap_enter_idle_coupled(struct cpuidle_device *dev,
 	mpuss_can_lose_context = (cx->mpu_state == PWRDM_POWER_RET) &&
 				 (cx->mpu_logic_state == PWRDM_POWER_OFF);
 
-	clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_ENTER, &cpu_id);
+	tick_broadcast_enter();
 
 	/*
 	 * Call idle CPU PM enter notifier chain so that
@@ -169,7 +168,7 @@ static int omap_enter_idle_coupled(struct cpuidle_device *dev,
 	if (dev->cpu == 0 && mpuss_can_lose_context)
 		cpu_cluster_pm_exit();
 
-	clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_EXIT, &cpu_id);
+	tick_broadcast_exit();
 
 fail:
 	cpuidle_coupled_parallel_barrier(dev, &abort_barrier);
@@ -184,8 +183,7 @@ fail:
  */
 static void omap_setup_broadcast_timer(void *arg)
 {
-	int cpu = smp_processor_id();
-	clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_ON, &cpu);
+	tick_broadcast_enable();
 }
 
 static struct cpuidle_driver omap4_idle_driver = {
diff --git a/arch/arm/mach-omap2/hsmmc.c b/arch/arm/mach-omap2/hsmmc.c
index dc6e79c..9a8611a 100644
--- a/arch/arm/mach-omap2/hsmmc.c
+++ b/arch/arm/mach-omap2/hsmmc.c
@@ -150,9 +150,13 @@ static int nop_mmc_set_power(struct device *dev, int power_on, int vdd)
 static inline void omap_hsmmc_mux(struct omap_hsmmc_platform_data
 				  *mmc_controller, int controller_nr)
 {
-	if (gpio_is_valid(mmc_controller->switch_pin) &&
-	    (mmc_controller->switch_pin < OMAP_MAX_GPIO_LINES))
-		omap_mux_init_gpio(mmc_controller->switch_pin,
+	if (gpio_is_valid(mmc_controller->gpio_cd) &&
+	    (mmc_controller->gpio_cd < OMAP_MAX_GPIO_LINES))
+		omap_mux_init_gpio(mmc_controller->gpio_cd,
+				   OMAP_PIN_INPUT_PULLUP);
+	if (gpio_is_valid(mmc_controller->gpio_cod) &&
+	    (mmc_controller->gpio_cod < OMAP_MAX_GPIO_LINES))
+		omap_mux_init_gpio(mmc_controller->gpio_cod,
 				   OMAP_PIN_INPUT_PULLUP);
 	if (gpio_is_valid(mmc_controller->gpio_wp) &&
 	    (mmc_controller->gpio_wp < OMAP_MAX_GPIO_LINES))
@@ -250,15 +254,20 @@ static int __init omap_hsmmc_pdata_init(struct omap2_hsmmc_info *c,
 	mmc->internal_clock = !c->ext_clock;
 	mmc->reg_offset = 0;
 
-	mmc->switch_pin = c->gpio_cd;
+	if (c->cover_only) {
+		/* detect if mobile phone cover removed */
+		mmc->gpio_cd = -EINVAL;
+		mmc->gpio_cod = c->gpio_cd;
+	} else {
+		/* card detect pin on the mmc socket itself */
+		mmc->gpio_cd = c->gpio_cd;
+		mmc->gpio_cod = -EINVAL;
+	}
 	mmc->gpio_wp = c->gpio_wp;
 
 	mmc->remux = c->remux;
 	mmc->init_card = c->init_card;
 
-	if (c->cover_only)
-		mmc->cover = 1;
-
 	if (c->nonremovable)
 		mmc->nonremovable = 1;
 
@@ -358,7 +367,15 @@ void omap_hsmmc_late_init(struct omap2_hsmmc_info *c)
 		if (!mmc_pdata)
 			continue;
 
-		mmc_pdata->switch_pin = c->gpio_cd;
+		if (c->cover_only) {
+			/* detect if mobile phone cover removed */
+			mmc_pdata->gpio_cd = -EINVAL;
+			mmc_pdata->gpio_cod = c->gpio_cd;
+		} else {
+			/* card detect pin on the mmc socket itself */
+			mmc_pdata->gpio_cd = c->gpio_cd;
+			mmc_pdata->gpio_cod = -EINVAL;
+		}
 		mmc_pdata->gpio_wp = c->gpio_wp;
 
 		res = omap_device_register(pdev);
diff --git a/arch/arm/mach-omap2/id.c b/arch/arm/mach-omap2/id.c
index 2a2f4d5..25f1bee 100644
--- a/arch/arm/mach-omap2/id.c
+++ b/arch/arm/mach-omap2/id.c
@@ -720,6 +720,8 @@ static const char * __init omap_get_family(void)
 		return kasprintf(GFP_KERNEL, "OMAP4");
 	else if (soc_is_omap54xx())
 		return kasprintf(GFP_KERNEL, "OMAP5");
+	else if (soc_is_am33xx() || soc_is_am335x())
+		return kasprintf(GFP_KERNEL, "AM33xx");
 	else if (soc_is_am43xx())
 		return kasprintf(GFP_KERNEL, "AM43xx");
 	else if (soc_is_dra7xx())
diff --git a/arch/arm/mach-omap2/omap-wakeupgen.c b/arch/arm/mach-omap2/omap-wakeupgen.c
index f961c46..3b56722 100644
--- a/arch/arm/mach-omap2/omap-wakeupgen.c
+++ b/arch/arm/mach-omap2/omap-wakeupgen.c
@@ -20,11 +20,12 @@
 #include <linux/init.h>
 #include <linux/io.h>
 #include <linux/irq.h>
+#include <linux/irqdomain.h>
+#include <linux/of_address.h>
 #include <linux/platform_device.h>
 #include <linux/cpu.h>
 #include <linux/notifier.h>
 #include <linux/cpu_pm.h>
-#include <linux/irqchip/arm-gic.h>
 
 #include "omap-wakeupgen.h"
 #include "omap-secure.h"
@@ -78,29 +79,12 @@ static inline void sar_writel(u32 val, u32 offset, u8 idx)
 
 static inline int _wakeupgen_get_irq_info(u32 irq, u32 *bit_posn, u8 *reg_index)
 {
-	unsigned int spi_irq;
-
-	/*
-	 * PPIs and SGIs are not supported.
-	 */
-	if (irq < OMAP44XX_IRQ_GIC_START)
-		return -EINVAL;
-
-	/*
-	 * Subtract the GIC offset.
-	 */
-	spi_irq = irq - OMAP44XX_IRQ_GIC_START;
-	if (spi_irq > MAX_IRQS) {
-		pr_err("omap wakeupGen: Invalid IRQ%d\n", irq);
-		return -EINVAL;
-	}
-
 	/*
 	 * Each WakeupGen register controls 32 interrupt.
 	 * i.e. 1 bit per SPI IRQ
 	 */
-	*reg_index = spi_irq >> 5;
-	*bit_posn = spi_irq %= 32;
+	*reg_index = irq >> 5;
+	*bit_posn = irq %= 32;
 
 	return 0;
 }
@@ -141,6 +125,7 @@ static void wakeupgen_mask(struct irq_data *d)
 	raw_spin_lock_irqsave(&wakeupgen_lock, flags);
 	_wakeupgen_clear(d->hwirq, irq_target_cpu[d->hwirq]);
 	raw_spin_unlock_irqrestore(&wakeupgen_lock, flags);
+	irq_chip_mask_parent(d);
 }
 
 /*
@@ -153,6 +138,7 @@ static void wakeupgen_unmask(struct irq_data *d)
 	raw_spin_lock_irqsave(&wakeupgen_lock, flags);
 	_wakeupgen_set(d->hwirq, irq_target_cpu[d->hwirq]);
 	raw_spin_unlock_irqrestore(&wakeupgen_lock, flags);
+	irq_chip_unmask_parent(d);
 }
 
 #ifdef CONFIG_HOTPLUG_CPU
@@ -400,15 +386,91 @@ int omap_secure_apis_support(void)
 	return omap_secure_apis;
 }
 
+static struct irq_chip wakeupgen_chip = {
+	.name			= "WUGEN",
+	.irq_eoi		= irq_chip_eoi_parent,
+	.irq_mask		= wakeupgen_mask,
+	.irq_unmask		= wakeupgen_unmask,
+	.irq_retrigger		= irq_chip_retrigger_hierarchy,
+	.flags			= IRQCHIP_SKIP_SET_WAKE | IRQCHIP_MASK_ON_SUSPEND,
+#ifdef CONFIG_SMP
+	.irq_set_affinity	= irq_chip_set_affinity_parent,
+#endif
+};
+
+static int wakeupgen_domain_xlate(struct irq_domain *domain,
+				  struct device_node *controller,
+				  const u32 *intspec,
+				  unsigned int intsize,
+				  unsigned long *out_hwirq,
+				  unsigned int *out_type)
+{
+	if (domain->of_node != controller)
+		return -EINVAL;	/* Shouldn't happen, really... */
+	if (intsize != 3)
+		return -EINVAL;	/* Not GIC compliant */
+	if (intspec[0] != 0)
+		return -EINVAL;	/* No PPI should point to this domain */
+
+	*out_hwirq = intspec[1];
+	*out_type = intspec[2];
+	return 0;
+}
+
+static int wakeupgen_domain_alloc(struct irq_domain *domain,
+				  unsigned int virq,
+				  unsigned int nr_irqs, void *data)
+{
+	struct of_phandle_args *args = data;
+	struct of_phandle_args parent_args;
+	irq_hw_number_t hwirq;
+	int i;
+
+	if (args->args_count != 3)
+		return -EINVAL;	/* Not GIC compliant */
+	if (args->args[0] != 0)
+		return -EINVAL;	/* No PPI should point to this domain */
+
+	hwirq = args->args[1];
+	if (hwirq >= MAX_IRQS)
+		return -EINVAL;	/* Can't deal with this */
+
+	for (i = 0; i < nr_irqs; i++)
+		irq_domain_set_hwirq_and_chip(domain, virq + i, hwirq + i,
+					      &wakeupgen_chip, NULL);
+
+	parent_args = *args;
+	parent_args.np = domain->parent->of_node;
+	return irq_domain_alloc_irqs_parent(domain, virq, nr_irqs, &parent_args);
+}
+
+static struct irq_domain_ops wakeupgen_domain_ops = {
+	.xlate	= wakeupgen_domain_xlate,
+	.alloc	= wakeupgen_domain_alloc,
+	.free	= irq_domain_free_irqs_common,
+};
+
 /*
  * Initialise the wakeupgen module.
  */
-int __init omap_wakeupgen_init(void)
+static int __init wakeupgen_init(struct device_node *node,
+				 struct device_node *parent)
 {
+	struct irq_domain *parent_domain, *domain;
 	int i;
 	unsigned int boot_cpu = smp_processor_id();
 	u32 val;
 
+	if (!parent) {
+		pr_err("%s: no parent, giving up\n", node->full_name);
+		return -ENODEV;
+	}
+
+	parent_domain = irq_find_host(parent);
+	if (!parent_domain) {
+		pr_err("%s: unable to obtain parent domain\n", node->full_name);
+		return -ENXIO;
+	}
 	/* Not supported on OMAP4 ES1.0 silicon */
 	if (omap_rev() == OMAP4430_REV_ES1_0) {
 		WARN(1, "WakeupGen: Not supported on OMAP4430 ES1.0\n");
@@ -416,7 +478,7 @@ int __init omap_wakeupgen_init(void)
 	}
 
 	/* Static mapping, never released */
-	wakeupgen_base = ioremap(OMAP_WKUPGEN_BASE, SZ_4K);
+	wakeupgen_base = of_iomap(node, 0);
 	if (WARN_ON(!wakeupgen_base))
 		return -ENOMEM;
 
@@ -429,6 +491,14 @@ int __init omap_wakeupgen_init(void)
 		max_irqs = AM43XX_IRQS;
 	}
 
+	domain = irq_domain_add_hierarchy(parent_domain, 0, max_irqs,
+					  node, &wakeupgen_domain_ops,
+					  NULL);
+	if (!domain) {
+		iounmap(wakeupgen_base);
+		return -ENOMEM;
+	}
+
 	/* Clear all IRQ bitmasks at wakeupGen level */
 	for (i = 0; i < irq_banks; i++) {
 		wakeupgen_writel(0, i, CPU0_ID);
@@ -437,14 +507,6 @@ int __init omap_wakeupgen_init(void)
 	}
 
 	/*
-	 * Override GIC architecture specific functions to add
-	 * OMAP WakeupGen interrupt controller along with GIC
-	 */
-	gic_arch_extn.irq_mask = wakeupgen_mask;
-	gic_arch_extn.irq_unmask = wakeupgen_unmask;
-	gic_arch_extn.flags = IRQCHIP_MASK_ON_SUSPEND | IRQCHIP_SKIP_SET_WAKE;
-
-	/*
 	 * FIXME: Add support to set_smp_affinity() once the core
 	 * GIC code has necessary hooks in place.
 	 */
@@ -474,3 +536,9 @@ int __init omap_wakeupgen_init(void)
 
 	return 0;
 }
+
+/*
+ * We cannot use the IRQCHIP_DECLARE macro that lives in
+ * drivers/irqchip, so we're forced to roll our own. Not very nice.
+ */
+OF_DECLARE_2(irqchip, ti_wakeupgen, "ti,omap4-wugen-mpu", wakeupgen_init);
diff --git a/arch/arm/mach-omap2/omap-wakeupgen.h b/arch/arm/mach-omap2/omap-wakeupgen.h
index b3c8ecc..a3491ad 100644
--- a/arch/arm/mach-omap2/omap-wakeupgen.h
+++ b/arch/arm/mach-omap2/omap-wakeupgen.h
@@ -33,7 +33,6 @@
 #define OMAP_TIMESTAMPCYCLELO			0xc08
 #define OMAP_TIMESTAMPCYCLEHI			0xc0c
 
-extern int __init omap_wakeupgen_init(void);
 extern void __iomem *omap_get_wakeupgen_base(void);
 extern int omap_secure_apis_support(void);
 #endif
diff --git a/arch/arm/mach-omap2/omap4-common.c b/arch/arm/mach-omap2/omap4-common.c
index cee0fe1..7bb116a 100644
--- a/arch/arm/mach-omap2/omap4-common.c
+++ b/arch/arm/mach-omap2/omap4-common.c
@@ -22,7 +22,6 @@
 #include <linux/of_platform.h>
 #include <linux/export.h>
 #include <linux/irqchip/arm-gic.h>
-#include <linux/irqchip/irq-crossbar.h>
 #include <linux/of_address.h>
 #include <linux/reboot.h>
 #include <linux/genalloc.h>
@@ -242,26 +241,26 @@ static int __init omap4_sar_ram_init(void)
 }
 omap_early_initcall(omap4_sar_ram_init);
 
-static const struct of_device_id gic_match[] = {
-	{ .compatible = "arm,cortex-a9-gic", },
-	{ .compatible = "arm,cortex-a15-gic", },
+static const struct of_device_id intc_match[] = {
+	{ .compatible = "ti,omap4-wugen-mpu", },
+	{ .compatible = "ti,omap5-wugen-mpu", },
 	{ },
 };
 
-static struct device_node *gic_node;
+static struct device_node *intc_node;
 
 unsigned int omap4_xlate_irq(unsigned int hwirq)
 {
 	struct of_phandle_args irq_data;
 	unsigned int irq;
 
-	if (!gic_node)
-		gic_node = of_find_matching_node(NULL, gic_match);
+	if (!intc_node)
+		intc_node = of_find_matching_node(NULL, intc_match);
 
-	if (WARN_ON(!gic_node))
+	if (WARN_ON(!intc_node))
 		return hwirq;
 
-	irq_data.np = gic_node;
+	irq_data.np = intc_node;
 	irq_data.args_count = 3;
 	irq_data.args[0] = 0;
 	irq_data.args[1] = hwirq - OMAP44XX_IRQ_GIC_START;
@@ -278,6 +277,12 @@ void __init omap_gic_of_init(void)
 {
 	struct device_node *np;
 
+	intc_node = of_find_matching_node(NULL, intc_match);
+	if (WARN_ON(!intc_node)) {
+		pr_err("No WUGEN found in DT, system will misbehave.\n");
+		pr_err("UPDATE YOUR DEVICE TREE!\n");
+	}
+
 	/* Extract GIC distributor and TWD bases for OMAP4460 ROM Errata WA */
 	if (!cpu_is_omap446x())
 		goto skip_errata_init;
@@ -291,9 +296,5 @@ void __init omap_gic_of_init(void)
 	WARN_ON(!twd_base);
 
 skip_errata_init:
-	omap_wakeupgen_init();
-#ifdef CONFIG_IRQ_CROSSBAR
-	irqcrossbar_init();
-#endif
 	irqchip_init();
 }
diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c
index 92afb72..355b089 100644
--- a/arch/arm/mach-omap2/omap_hwmod.c
+++ b/arch/arm/mach-omap2/omap_hwmod.c
@@ -1692,16 +1692,15 @@ static int _deassert_hardreset(struct omap_hwmod *oh, const char *name)
 	if (ret == -EBUSY)
 		pr_warn("omap_hwmod: %s: failed to hardreset\n", oh->name);
 
-	if (!ret) {
+	if (oh->clkdm) {
 		/*
 		 * Set the clockdomain to HW_AUTO, assuming that the
 		 * previous state was HW_AUTO.
 		 */
-		if (oh->clkdm && hwsup)
+		if (hwsup)
 			clkdm_allow_idle(oh->clkdm);
-	} else {
-		if (oh->clkdm)
-			clkdm_hwmod_disable(oh->clkdm, oh);
+
+		clkdm_hwmod_disable(oh->clkdm, oh);
 	}
 
 	return ret;
@@ -2698,6 +2697,7 @@ static int __init _register(struct omap_hwmod *oh)
 	INIT_LIST_HEAD(&oh->master_ports);
 	INIT_LIST_HEAD(&oh->slave_ports);
 	spin_lock_init(&oh->_lock);
+	lockdep_set_class(&oh->_lock, &oh->hwmod_key);
 
 	oh->_state = _HWMOD_STATE_REGISTERED;
 
diff --git a/arch/arm/mach-omap2/omap_hwmod.h b/arch/arm/mach-omap2/omap_hwmod.h
index 9d4bec6e..9611c91 100644
--- a/arch/arm/mach-omap2/omap_hwmod.h
+++ b/arch/arm/mach-omap2/omap_hwmod.h
@@ -674,6 +674,7 @@ struct omap_hwmod {
 	u32				_sysc_cache;
 	void __iomem			*_mpu_rt_va;
 	spinlock_t			_lock;
+	struct lock_class_key		hwmod_key; /* unique lock class */
 	struct list_head		node;
 	struct omap_hwmod_ocp_if	*_mpu_port;
 	unsigned int			(*xlate_irq)(unsigned int);
diff --git a/arch/arm/mach-omap2/omap_hwmod_7xx_data.c b/arch/arm/mach-omap2/omap_hwmod_7xx_data.c
index e8692e7..16fe7a1 100644
--- a/arch/arm/mach-omap2/omap_hwmod_7xx_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_7xx_data.c
@@ -1466,55 +1466,18 @@ static struct omap_hwmod dra7xx_ocp2scp3_hwmod = {
  *
  */
 
-static struct omap_hwmod_class dra7xx_pcie_hwmod_class = {
+static struct omap_hwmod_class dra7xx_pciess_hwmod_class = {
 	.name	= "pcie",
 };
 
 /* pcie1 */
-static struct omap_hwmod dra7xx_pcie1_hwmod = {
+static struct omap_hwmod dra7xx_pciess1_hwmod = {
 	.name		= "pcie1",
-	.class		= &dra7xx_pcie_hwmod_class,
+	.class		= &dra7xx_pciess_hwmod_class,
 	.clkdm_name	= "pcie_clkdm",
 	.main_clk	= "l4_root_clk_div",
 	.prcm = {
 		.omap4 = {
-			.clkctrl_offs	= DRA7XX_CM_PCIE_CLKSTCTRL_OFFSET,
-			.modulemode	= MODULEMODE_SWCTRL,
-		},
-	},
-};
-
-/* pcie2 */
-static struct omap_hwmod dra7xx_pcie2_hwmod = {
-	.name		= "pcie2",
-	.class		= &dra7xx_pcie_hwmod_class,
-	.clkdm_name	= "pcie_clkdm",
-	.main_clk	= "l4_root_clk_div",
-	.prcm = {
-		.omap4 = {
-			.clkctrl_offs = DRA7XX_CM_PCIE_CLKSTCTRL_OFFSET,
-			.modulemode   = MODULEMODE_SWCTRL,
-		},
-	},
-};
-
-/*
- * 'PCIE PHY' class
- *
- */
-
-static struct omap_hwmod_class dra7xx_pcie_phy_hwmod_class = {
-	.name	= "pcie-phy",
-};
-
-/* pcie1 phy */
-static struct omap_hwmod dra7xx_pcie1_phy_hwmod = {
-	.name		= "pcie1-phy",
-	.class		= &dra7xx_pcie_phy_hwmod_class,
-	.clkdm_name	= "l3init_clkdm",
-	.main_clk	= "l4_root_clk_div",
-	.prcm = {
-		.omap4 = {
 			.clkctrl_offs = DRA7XX_CM_L3INIT_PCIESS1_CLKCTRL_OFFSET,
 			.context_offs = DRA7XX_RM_L3INIT_PCIESS1_CONTEXT_OFFSET,
 			.modulemode   = MODULEMODE_SWCTRL,
@@ -1522,11 +1485,11 @@ static struct omap_hwmod dra7xx_pcie1_phy_hwmod = {
 	},
 };
 
-/* pcie2 phy */
-static struct omap_hwmod dra7xx_pcie2_phy_hwmod = {
-	.name		= "pcie2-phy",
-	.class		= &dra7xx_pcie_phy_hwmod_class,
-	.clkdm_name	= "l3init_clkdm",
+/* pcie2 */
+static struct omap_hwmod dra7xx_pciess2_hwmod = {
+	.name		= "pcie2",
+	.class		= &dra7xx_pciess_hwmod_class,
+	.clkdm_name	= "pcie_clkdm",
 	.main_clk	= "l4_root_clk_div",
 	.prcm = {
 		.omap4 = {
@@ -2877,50 +2840,34 @@ static struct omap_hwmod_ocp_if dra7xx_l4_cfg__ocp2scp3 = {
 	.user		= OCP_USER_MPU | OCP_USER_SDMA,
 };
 
-/* l3_main_1 -> pcie1 */
-static struct omap_hwmod_ocp_if dra7xx_l3_main_1__pcie1 = {
+/* l3_main_1 -> pciess1 */
+static struct omap_hwmod_ocp_if dra7xx_l3_main_1__pciess1 = {
 	.master		= &dra7xx_l3_main_1_hwmod,
-	.slave		= &dra7xx_pcie1_hwmod,
+	.slave		= &dra7xx_pciess1_hwmod,
 	.clk		= "l3_iclk_div",
 	.user		= OCP_USER_MPU | OCP_USER_SDMA,
 };
 
-/* l4_cfg -> pcie1 */
-static struct omap_hwmod_ocp_if dra7xx_l4_cfg__pcie1 = {
+/* l4_cfg -> pciess1 */
+static struct omap_hwmod_ocp_if dra7xx_l4_cfg__pciess1 = {
 	.master		= &dra7xx_l4_cfg_hwmod,
-	.slave		= &dra7xx_pcie1_hwmod,
+	.slave		= &dra7xx_pciess1_hwmod,
 	.clk		= "l4_root_clk_div",
 	.user		= OCP_USER_MPU | OCP_USER_SDMA,
 };
 
-/* l3_main_1 -> pcie2 */
-static struct omap_hwmod_ocp_if dra7xx_l3_main_1__pcie2 = {
+/* l3_main_1 -> pciess2 */
+static struct omap_hwmod_ocp_if dra7xx_l3_main_1__pciess2 = {
 	.master		= &dra7xx_l3_main_1_hwmod,
-	.slave		= &dra7xx_pcie2_hwmod,
+	.slave		= &dra7xx_pciess2_hwmod,
 	.clk		= "l3_iclk_div",
 	.user		= OCP_USER_MPU | OCP_USER_SDMA,
 };
 
-/* l4_cfg -> pcie2 */
-static struct omap_hwmod_ocp_if dra7xx_l4_cfg__pcie2 = {
-	.master		= &dra7xx_l4_cfg_hwmod,
-	.slave		= &dra7xx_pcie2_hwmod,
-	.clk		= "l4_root_clk_div",
-	.user		= OCP_USER_MPU | OCP_USER_SDMA,
-};
-
-/* l4_cfg -> pcie1 phy */
-static struct omap_hwmod_ocp_if dra7xx_l4_cfg__pcie1_phy = {
-	.master		= &dra7xx_l4_cfg_hwmod,
-	.slave		= &dra7xx_pcie1_phy_hwmod,
-	.clk		= "l4_root_clk_div",
-	.user		= OCP_USER_MPU | OCP_USER_SDMA,
-};
-
-/* l4_cfg -> pcie2 phy */
-static struct omap_hwmod_ocp_if dra7xx_l4_cfg__pcie2_phy = {
+/* l4_cfg -> pciess2 */
+static struct omap_hwmod_ocp_if dra7xx_l4_cfg__pciess2 = {
 	.master		= &dra7xx_l4_cfg_hwmod,
-	.slave		= &dra7xx_pcie2_phy_hwmod,
+	.slave		= &dra7xx_pciess2_hwmod,
 	.clk		= "l4_root_clk_div",
 	.user		= OCP_USER_MPU | OCP_USER_SDMA,
 };
@@ -3327,12 +3274,10 @@ static struct omap_hwmod_ocp_if *dra7xx_hwmod_ocp_ifs[] __initdata = {
 	&dra7xx_l4_cfg__mpu,
 	&dra7xx_l4_cfg__ocp2scp1,
 	&dra7xx_l4_cfg__ocp2scp3,
-	&dra7xx_l3_main_1__pcie1,
-	&dra7xx_l4_cfg__pcie1,
-	&dra7xx_l3_main_1__pcie2,
-	&dra7xx_l4_cfg__pcie2,
-	&dra7xx_l4_cfg__pcie1_phy,
-	&dra7xx_l4_cfg__pcie2_phy,
+	&dra7xx_l3_main_1__pciess1,
+	&dra7xx_l4_cfg__pciess1,
+	&dra7xx_l3_main_1__pciess2,
+	&dra7xx_l4_cfg__pciess2,
 	&dra7xx_l3_main_1__qspi,
 	&dra7xx_l4_per3__rtcss,
 	&dra7xx_l4_cfg__sata,
diff --git a/arch/arm/mach-omap2/pdata-quirks.c b/arch/arm/mach-omap2/pdata-quirks.c
index 190fa43..e642b07 100644
--- a/arch/arm/mach-omap2/pdata-quirks.c
+++ b/arch/arm/mach-omap2/pdata-quirks.c
@@ -173,6 +173,7 @@ static void __init omap3_igep0030_rev_g_legacy_init(void)
 
 static void __init omap3_evm_legacy_init(void)
 {
+	hsmmc2_internal_input_clk();
 	legacy_init_wl12xx(WL12XX_REFCLOCK_38, 0, 149);
 }
 
diff --git a/arch/arm/mach-omap2/prm44xx.c b/arch/arm/mach-omap2/prm44xx.c
index a08a617..d6d6bc3 100644
--- a/arch/arm/mach-omap2/prm44xx.c
+++ b/arch/arm/mach-omap2/prm44xx.c
@@ -252,10 +252,10 @@ static void omap44xx_prm_save_and_clear_irqen(u32 *saved_mask)
 {
 	saved_mask[0] =
 		omap4_prm_read_inst_reg(OMAP4430_PRM_OCP_SOCKET_INST,
-					OMAP4_PRM_IRQSTATUS_MPU_OFFSET);
+					OMAP4_PRM_IRQENABLE_MPU_OFFSET);
 	saved_mask[1] =
 		omap4_prm_read_inst_reg(OMAP4430_PRM_OCP_SOCKET_INST,
-					OMAP4_PRM_IRQSTATUS_MPU_2_OFFSET);
+					OMAP4_PRM_IRQENABLE_MPU_2_OFFSET);
 
 	omap4_prm_write_inst_reg(0, OMAP4430_PRM_OCP_SOCKET_INST,
 				 OMAP4_PRM_IRQENABLE_MPU_OFFSET);
diff --git a/arch/arm/mach-orion5x/pci.c b/arch/arm/mach-orion5x/pci.c
index 87a12d6..b02f394 100644
--- a/arch/arm/mach-orion5x/pci.c
+++ b/arch/arm/mach-orion5x/pci.c
@@ -540,37 +540,33 @@ void __init orion5x_pci_set_cardbus_mode(void)
 
 int __init orion5x_pci_sys_setup(int nr, struct pci_sys_data *sys)
 {
-	int ret = 0;
-
 	vga_base = ORION5X_PCIE_MEM_PHYS_BASE;
 
 	if (nr == 0) {
 		orion_pcie_set_local_bus_nr(PCIE_BASE, sys->busnr);
-		ret = pcie_setup(sys);
-	} else if (nr == 1 && !orion5x_pci_disabled) {
+		return pcie_setup(sys);
+	}
+
+	if (nr == 1 && !orion5x_pci_disabled) {
 		orion5x_pci_set_bus_nr(sys->busnr);
-		ret = pci_setup(sys);
+		return pci_setup(sys);
 	}
 
-	return ret;
+	return 0;
 }
 
 struct pci_bus __init *orion5x_pci_sys_scan_bus(int nr, struct pci_sys_data *sys)
 {
-	struct pci_bus *bus;
+	if (nr == 0)
+		return pci_scan_root_bus(NULL, sys->busnr, &pcie_ops, sys,
+					 &sys->resources);
 
-	if (nr == 0) {
-		bus = pci_scan_root_bus(NULL, sys->busnr, &pcie_ops, sys,
-					&sys->resources);
-	} else if (nr == 1 && !orion5x_pci_disabled) {
-		bus = pci_scan_root_bus(NULL, sys->busnr, &pci_ops, sys,
-					&sys->resources);
-	} else {
-		bus = NULL;
-		BUG();
-	}
+	if (nr == 1 && !orion5x_pci_disabled)
+		return pci_scan_root_bus(NULL, sys->busnr, &pci_ops, sys,
+					 &sys->resources);
 
-	return bus;
+	BUG();
+	return NULL;
 }
 
 int __init orion5x_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
diff --git a/arch/arm/mach-pxa/idp.c b/arch/arm/mach-pxa/idp.c
index 343c4e3..f6d02e4 100644
--- a/arch/arm/mach-pxa/idp.c
+++ b/arch/arm/mach-pxa/idp.c
@@ -36,6 +36,7 @@
 #include <linux/platform_data/video-pxafb.h>
 #include <mach/bitfield.h>
 #include <linux/platform_data/mmc-pxamci.h>
+#include <linux/smc91x.h>
 
 #include "generic.h"
 #include "devices.h"
@@ -81,11 +82,16 @@ static struct resource smc91x_resources[] = {
 	}
 };
 
+static struct smc91x_platdata smc91x_platdata = {
+	.flags = SMC91X_USE_32BIT | SMC91X_USE_DMA | SMC91X_NOWAIT,
+};
+
 static struct platform_device smc91x_device = {
 	.name		= "smc91x",
 	.id		= 0,
 	.num_resources	= ARRAY_SIZE(smc91x_resources),
 	.resource	= smc91x_resources,
+	.dev.platform_data = &smc91x_platdata,
 };
 
 static void idp_backlight_power(int on)
diff --git a/arch/arm/mach-pxa/irq.c b/arch/arm/mach-pxa/irq.c
index 0eecd83..89a7c06 100644
--- a/arch/arm/mach-pxa/irq.c
+++ b/arch/arm/mach-pxa/irq.c
@@ -11,6 +11,7 @@
  *  it under the terms of the GNU General Public License version 2 as
  *  published by the Free Software Foundation.
  */
+#include <linux/bitops.h>
 #include <linux/init.h>
 #include <linux/module.h>
 #include <linux/interrupt.h>
@@ -40,7 +41,6 @@
 #define ICHP_VAL_IRQ		(1 << 31)
 #define ICHP_IRQ(i)		(((i) >> 16) & 0x7fff)
 #define IPR_VALID		(1 << 31)
-#define IRQ_BIT(n)		(((n) - PXA_IRQ(0)) & 0x1f)
 
 #define MAX_INTERNAL_IRQS	128
 
@@ -51,6 +51,7 @@
 static void __iomem *pxa_irq_base;
 static int pxa_internal_irq_nr;
 static bool cpu_has_ipr;
+static struct irq_domain *pxa_irq_domain;
 
 static inline void __iomem *irq_base(int i)
 {
@@ -66,18 +67,20 @@ static inline void __iomem *irq_base(int i)
 void pxa_mask_irq(struct irq_data *d)
 {
 	void __iomem *base = irq_data_get_irq_chip_data(d);
+	irq_hw_number_t irq = irqd_to_hwirq(d);
 	uint32_t icmr = __raw_readl(base + ICMR);
 
-	icmr &= ~(1 << IRQ_BIT(d->irq));
+	icmr &= ~BIT(irq & 0x1f);
 	__raw_writel(icmr, base + ICMR);
 }
 
 void pxa_unmask_irq(struct irq_data *d)
 {
 	void __iomem *base = irq_data_get_irq_chip_data(d);
+	irq_hw_number_t irq = irqd_to_hwirq(d);
 	uint32_t icmr = __raw_readl(base + ICMR);
 
-	icmr |= 1 << IRQ_BIT(d->irq);
+	icmr |= BIT(irq & 0x1f);
 	__raw_writel(icmr, base + ICMR);
 }
 
@@ -118,40 +121,63 @@ asmlinkage void __exception_irq_entry ichp_handle_irq(struct pt_regs *regs)
 	} while (1);
 }
 
-void __init pxa_init_irq(int irq_nr, int (*fn)(struct irq_data *, unsigned int))
+static int pxa_irq_map(struct irq_domain *h, unsigned int virq,
+		       irq_hw_number_t hw)
 {
-	int irq, i, n;
+	void __iomem *base = irq_base(hw / 32);
 
-	BUG_ON(irq_nr > MAX_INTERNAL_IRQS);
+	/* initialize interrupt priority */
+	if (cpu_has_ipr)
+		__raw_writel(hw | IPR_VALID, pxa_irq_base + IPR(hw));
+
+	irq_set_chip_and_handler(virq, &pxa_internal_irq_chip,
+				 handle_level_irq);
+	irq_set_chip_data(virq, base);
+	set_irq_flags(virq, IRQF_VALID);
+
+	return 0;
+}
+
+static struct irq_domain_ops pxa_irq_ops = {
+	.map    = pxa_irq_map,
+	.xlate  = irq_domain_xlate_onecell,
+};
+
+static __init void
+pxa_init_irq_common(struct device_node *node, int irq_nr,
+		    int (*fn)(struct irq_data *, unsigned int))
+{
+	int n;
 
 	pxa_internal_irq_nr = irq_nr;
-	cpu_has_ipr = !cpu_is_pxa25x();
-	pxa_irq_base = io_p2v(0x40d00000);
+	pxa_irq_domain = irq_domain_add_legacy(node, irq_nr,
+					       PXA_IRQ(0), 0,
+					       &pxa_irq_ops, NULL);
+	if (!pxa_irq_domain)
+		panic("Unable to add PXA IRQ domain\n");
+	irq_set_default_host(pxa_irq_domain);
 
 	for (n = 0; n < irq_nr; n += 32) {
 		void __iomem *base = irq_base(n >> 5);
 
 		__raw_writel(0, base + ICMR);	/* disable all IRQs */
 		__raw_writel(0, base + ICLR);	/* all IRQs are IRQ, not FIQ */
-		for (i = n; (i < (n + 32)) && (i < irq_nr); i++) {
-			/* initialize interrupt priority */
-			if (cpu_has_ipr)
-				__raw_writel(i | IPR_VALID, pxa_irq_base + IPR(i));
-
-			irq = PXA_IRQ(i);
-			irq_set_chip_and_handler(irq, &pxa_internal_irq_chip,
-						 handle_level_irq);
-			irq_set_chip_data(irq, base);
-			set_irq_flags(irq, IRQF_VALID);
-		}
 	}
-
 	/* only unmasked interrupts kick us out of idle */
 	__raw_writel(1, irq_base(0) + ICCR);
 
 	pxa_internal_irq_chip.irq_set_wake = fn;
 }
 
+void __init pxa_init_irq(int irq_nr, int (*fn)(struct irq_data *, unsigned int))
+{
+	BUG_ON(irq_nr > MAX_INTERNAL_IRQS);
+
+	pxa_irq_base = io_p2v(0x40d00000);
+	cpu_has_ipr = !cpu_is_pxa25x();
+	pxa_init_irq_common(NULL, irq_nr, fn);
+}
+
 #ifdef CONFIG_PM
 static unsigned long saved_icmr[MAX_INTERNAL_IRQS/32];
 static unsigned long saved_ipr[MAX_INTERNAL_IRQS];
@@ -203,30 +229,6 @@ struct syscore_ops pxa_irq_syscore_ops = {
 };
 
 #ifdef CONFIG_OF
-static struct irq_domain *pxa_irq_domain;
-
-static int pxa_irq_map(struct irq_domain *h, unsigned int virq,
-		       irq_hw_number_t hw)
-{
-	void __iomem *base = irq_base(hw / 32);
-
-	/* initialize interrupt priority */
-	if (cpu_has_ipr)
-		__raw_writel(hw | IPR_VALID, pxa_irq_base + IPR(hw));
-
-	irq_set_chip_and_handler(hw, &pxa_internal_irq_chip,
-				 handle_level_irq);
-	irq_set_chip_data(hw, base);
-	set_irq_flags(hw, IRQF_VALID);
-
-	return 0;
-}
-
-static struct irq_domain_ops pxa_irq_ops = {
-	.map    = pxa_irq_map,
-	.xlate  = irq_domain_xlate_onecell,
-};
-
 static const struct of_device_id intc_ids[] __initconst = {
 	{ .compatible = "marvell,pxa-intc", },
 	{}
@@ -236,7 +238,7 @@ void __init pxa_dt_irq_init(int (*fn)(struct irq_data *, unsigned int))
 {
 	struct device_node *node;
 	struct resource res;
-	int n, ret;
+	int ret;
 
 	node = of_find_matching_node(NULL, intc_ids);
 	if (!node) {
@@ -267,23 +269,6 @@ void __init pxa_dt_irq_init(int (*fn)(struct irq_data *, unsigned int))
 		return;
 	}
 
-	pxa_irq_domain = irq_domain_add_legacy(node, pxa_internal_irq_nr, 0, 0,
-					       &pxa_irq_ops, NULL);
-	if (!pxa_irq_domain)
-		panic("Unable to add PXA IRQ domain\n");
-
-	irq_set_default_host(pxa_irq_domain);
-
-	for (n = 0; n < pxa_internal_irq_nr; n += 32) {
-		void __iomem *base = irq_base(n >> 5);
-
-		__raw_writel(0, base + ICMR);	/* disable all IRQs */
-		__raw_writel(0, base + ICLR);	/* all IRQs are IRQ, not FIQ */
-	}
-
-	/* only unmasked interrupts kick us out of idle */
-	__raw_writel(1, irq_base(0) + ICCR);
-
-	pxa_internal_irq_chip.irq_set_wake = fn;
+	pxa_init_irq_common(node, pxa_internal_irq_nr, fn);
 }
 #endif /* CONFIG_OF */
diff --git a/arch/arm/mach-pxa/lpd270.c b/arch/arm/mach-pxa/lpd270.c
index ad777b3..eaee2c2 100644
--- a/arch/arm/mach-pxa/lpd270.c
+++ b/arch/arm/mach-pxa/lpd270.c
@@ -24,6 +24,7 @@
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/partitions.h>
 #include <linux/pwm_backlight.h>
+#include <linux/smc91x.h>
 
 #include <asm/types.h>
 #include <asm/setup.h>
@@ -189,15 +190,20 @@ static struct resource smc91x_resources[] = {
 	[1] = {
 		.start	= LPD270_ETHERNET_IRQ,
 		.end	= LPD270_ETHERNET_IRQ,
-		.flags	= IORESOURCE_IRQ,
+		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
 	},
 };
 
+struct smc91x_platdata smc91x_platdata = {
+	.flags = SMC91X_USE_16BIT | SMC91X_NOWAIT,
+};
+
 static struct platform_device smc91x_device = {
 	.name		= "smc91x",
 	.id		= 0,
 	.num_resources	= ARRAY_SIZE(smc91x_resources),
 	.resource	= smc91x_resources,
+	.dev.platform_data = &smc91x_platdata,
 };
 
 static struct resource lpd270_flash_resources[] = {
diff --git a/arch/arm/mach-pxa/raumfeld.c b/arch/arm/mach-pxa/raumfeld.c
index a762b23..6dc4f02 100644
--- a/arch/arm/mach-pxa/raumfeld.c
+++ b/arch/arm/mach-pxa/raumfeld.c
@@ -758,8 +758,10 @@ static void raumfeld_power_signal_charged(void)
 	struct power_supply *psy =
 		power_supply_get_by_name(raumfeld_power_supplicants[0]);
 
-	if (psy)
+	if (psy) {
 		power_supply_set_battery_charged(psy);
+		power_supply_put(psy);
+	}
 }
 
 static int raumfeld_power_resume(void)
diff --git a/arch/arm/mach-pxa/zeus.c b/arch/arm/mach-pxa/zeus.c
index 205f9bf..ac2ae5c 100644
--- a/arch/arm/mach-pxa/zeus.c
+++ b/arch/arm/mach-pxa/zeus.c
@@ -412,7 +412,7 @@ static struct fixed_voltage_config can_regulator_pdata = {
 };
 
 static struct platform_device can_regulator_device = {
-	.name	= "reg-fixed-volage",
+	.name	= "reg-fixed-voltage",
 	.id	= 0,
 	.dev	= {
 		.platform_data	= &can_regulator_pdata,
diff --git a/arch/arm/mach-realview/core.c b/arch/arm/mach-realview/core.c
index 850e506..c309593 100644
--- a/arch/arm/mach-realview/core.c
+++ b/arch/arm/mach-realview/core.c
@@ -28,6 +28,7 @@
 #include <linux/platform_data/video-clcd-versatile.h>
 #include <linux/io.h>
 #include <linux/smsc911x.h>
+#include <linux/smc91x.h>
 #include <linux/ata_platform.h>
 #include <linux/amba/mmci.h>
 #include <linux/gfp.h>
@@ -94,6 +95,10 @@ static struct smsc911x_platform_config smsc911x_config = {
 	.phy_interface	= PHY_INTERFACE_MODE_MII,
 };
 
+static struct smc91x_platdata smc91x_platdata = {
+	.flags = SMC91X_USE_32BIT | SMC91X_NOWAIT,
+};
+
 static struct platform_device realview_eth_device = {
 	.name		= "smsc911x",
 	.id		= 0,
@@ -107,6 +112,8 @@ int realview_eth_register(const char *name, struct resource *res)
 	realview_eth_device.resource = res;
 	if (strcmp(realview_eth_device.name, "smsc911x") == 0)
 		realview_eth_device.dev.platform_data = &smsc911x_config;
+	else
+		realview_eth_device.dev.platform_data = &smc91x_platdata;
 
 	return platform_device_register(&realview_eth_device);
 }
diff --git a/arch/arm/mach-realview/realview_eb.c b/arch/arm/mach-realview/realview_eb.c
index 64c88d6..b3869cb 100644
--- a/arch/arm/mach-realview/realview_eb.c
+++ b/arch/arm/mach-realview/realview_eb.c
@@ -234,7 +234,7 @@ static struct resource realview_eb_eth_resources[] = {
 	[1] = {
 		.start		= IRQ_EB_ETH,
 		.end		= IRQ_EB_ETH,
-		.flags		= IORESOURCE_IRQ,
+		.flags		= IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
 	},
 };
 
diff --git a/arch/arm/mach-sa1100/neponset.c b/arch/arm/mach-sa1100/neponset.c
index 169262e..af868d25 100644
--- a/arch/arm/mach-sa1100/neponset.c
+++ b/arch/arm/mach-sa1100/neponset.c
@@ -12,6 +12,7 @@
 #include <linux/pm.h>
 #include <linux/serial_core.h>
 #include <linux/slab.h>
+#include <linux/smc91x.h>
 
 #include <asm/mach-types.h>
 #include <asm/mach/map.h>
@@ -258,12 +259,17 @@ static int neponset_probe(struct platform_device *dev)
 			0x02000000, "smc91x-attrib"),
 		{ .flags = IORESOURCE_IRQ },
 	};
+	struct smc91x_platdata smc91x_platdata = {
+		.flags = SMC91X_USE_8BIT | SMC91X_IO_SHIFT_2 | SMC91X_NOWAIT,
+	};
 	struct platform_device_info smc91x_devinfo = {
 		.parent = &dev->dev,
 		.name = "smc91x",
 		.id = 0,
 		.res = smc91x_resources,
 		.num_res = ARRAY_SIZE(smc91x_resources),
+		.data = &smc91x_platdata,
+		.size_data = sizeof(smc91x_platdata),
 	};
 	int ret, irq;
 
diff --git a/arch/arm/mach-sa1100/pleb.c b/arch/arm/mach-sa1100/pleb.c
index 0912618..1525d7b 100644
--- a/arch/arm/mach-sa1100/pleb.c
+++ b/arch/arm/mach-sa1100/pleb.c
@@ -11,6 +11,7 @@
 #include <linux/irq.h>
 #include <linux/io.h>
 #include <linux/mtd/partitions.h>
+#include <linux/smc91x.h>
 
 #include <mach/hardware.h>
 #include <asm/setup.h>
@@ -43,12 +44,18 @@ static struct resource smc91x_resources[] = {
 #endif
 };
 
+static struct smc91x_platdata smc91x_platdata = {
+	.flags = SMC91X_USE_16BIT | SMC91X_NOWAIT,
+};
 
 static struct platform_device smc91x_device = {
 	.name		= "smc91x",
 	.id		= 0,
 	.num_resources	= ARRAY_SIZE(smc91x_resources),
 	.resource	= smc91x_resources,
+	.dev = {
+		.platform_data  = &smc91x_platdata,
+	},
 };
 
 static struct platform_device *devices[] __initdata = {
diff --git a/arch/arm/mach-shmobile/intc-sh73a0.c b/arch/arm/mach-shmobile/intc-sh73a0.c
index 9e36180..fd63ae6 100644
--- a/arch/arm/mach-shmobile/intc-sh73a0.c
+++ b/arch/arm/mach-shmobile/intc-sh73a0.c
@@ -252,11 +252,6 @@ static irqreturn_t sh73a0_intcs_demux(int irq, void *dev_id)
 	return IRQ_HANDLED;
 }
 
-static int sh73a0_set_wake(struct irq_data *data, unsigned int on)
-{
-	return 0; /* always allow wakeup */
-}
-
 #define PINTER0_PHYS 0xe69000a0
 #define PINTER1_PHYS 0xe69000a4
 #define PINTER0_VIRT IOMEM(0xe69000a0)
@@ -318,8 +313,8 @@ void __init sh73a0_init_irq(void)
 	void __iomem *gic_cpu_base = IOMEM(0xf0000100);
 	void __iomem *intevtsa = ioremap_nocache(0xffd20100, PAGE_SIZE);
 
+	gic_set_irqchip_flags(IRQCHIP_SKIP_SET_WAKE);
 	gic_init(0, 29, gic_dist_base, gic_cpu_base);
-	gic_arch_extn.irq_set_wake = sh73a0_set_wake;
 
 	register_intc_controller(&intcs_desc);
 	register_intc_controller(&intc_pint0_desc);
diff --git a/arch/arm/mach-shmobile/setup-r8a7779.c b/arch/arm/mach-shmobile/setup-r8a7779.c
index 27dceaf9..c03e562 100644
--- a/arch/arm/mach-shmobile/setup-r8a7779.c
+++ b/arch/arm/mach-shmobile/setup-r8a7779.c
@@ -713,18 +713,13 @@ void __init r8a7779_init_late(void)
 }
 
 #ifdef CONFIG_USE_OF
-static int r8a7779_set_wake(struct irq_data *data, unsigned int on)
-{
-	return 0; /* always allow wakeup */
-}
-
 void __init r8a7779_init_irq_dt(void)
 {
 #ifdef CONFIG_ARCH_SHMOBILE_LEGACY
 	void __iomem *gic_dist_base = ioremap_nocache(0xf0001000, 0x1000);
 	void __iomem *gic_cpu_base = ioremap_nocache(0xf0000100, 0x1000);
 #endif
-	gic_arch_extn.irq_set_wake = r8a7779_set_wake;
+	gic_set_irqchip_flags(IRQCHIP_SKIP_SET_WAKE);
 
 #ifdef CONFIG_ARCH_SHMOBILE_LEGACY
 	gic_init(0, 29, gic_dist_base, gic_cpu_base);
diff --git a/arch/arm/mach-socfpga/core.h b/arch/arm/mach-socfpga/core.h
index 483cb46..a0f3b1c 100644
--- a/arch/arm/mach-socfpga/core.h
+++ b/arch/arm/mach-socfpga/core.h
@@ -45,6 +45,6 @@ extern char secondary_trampoline, secondary_trampoline_end;
 
 extern unsigned long socfpga_cpu1start_addr;
 
-#define SOCFPGA_SCU_VIRT_BASE   0xfffec000
+#define SOCFPGA_SCU_VIRT_BASE   0xfee00000
 
 #endif
diff --git a/arch/arm/mach-socfpga/socfpga.c b/arch/arm/mach-socfpga/socfpga.c
index 383d61e..f5e597c 100644
--- a/arch/arm/mach-socfpga/socfpga.c
+++ b/arch/arm/mach-socfpga/socfpga.c
@@ -23,6 +23,7 @@
 #include <asm/hardware/cache-l2x0.h>
 #include <asm/mach/arch.h>
 #include <asm/mach/map.h>
+#include <asm/cacheflush.h>
 
 #include "core.h"
 
@@ -73,6 +74,10 @@ void __init socfpga_sysmgr_init(void)
 			(u32 *) &socfpga_cpu1start_addr))
 		pr_err("SMP: Need cpu1-start-addr in device tree.\n");
 
+	/* Ensure that socfpga_cpu1start_addr is visible to other CPUs */
+	smp_wmb();
+	sync_cache_w(&socfpga_cpu1start_addr);
+
 	sys_manager_base_addr = of_iomap(np, 0);
 
 	np = of_find_compatible_node(NULL, NULL, "altr,rst-mgr");
diff --git a/arch/arm/mach-sti/board-dt.c b/arch/arm/mach-sti/board-dt.c
index b067390..b373aca 100644
--- a/arch/arm/mach-sti/board-dt.c
+++ b/arch/arm/mach-sti/board-dt.c
@@ -18,6 +18,7 @@ static const char *stih41x_dt_match[] __initdata = {
 	"st,stih415",
 	"st,stih416",
 	"st,stih407",
+	"st,stih410",
 	"st,stih418",
 	NULL
 };
diff --git a/arch/arm/mach-sunxi/Kconfig b/arch/arm/mach-sunxi/Kconfig
index a77604f..81502b9 100644
--- a/arch/arm/mach-sunxi/Kconfig
+++ b/arch/arm/mach-sunxi/Kconfig
@@ -1,10 +1,12 @@
 menuconfig ARCH_SUNXI
 	bool "Allwinner SoCs" if ARCH_MULTI_V7
 	select ARCH_REQUIRE_GPIOLIB
+	select ARCH_HAS_RESET_CONTROLLER
 	select CLKSRC_MMIO
 	select GENERIC_IRQ_CHIP
 	select PINCTRL
 	select SUN4I_TIMER
+	select RESET_CONTROLLER
 
 if ARCH_SUNXI
 
@@ -20,10 +22,8 @@ config MACH_SUN5I
 config MACH_SUN6I
 	bool "Allwinner A31 (sun6i) SoCs support"
 	default ARCH_SUNXI
-	select ARCH_HAS_RESET_CONTROLLER
 	select ARM_GIC
 	select MFD_SUN6I_PRCM
-	select RESET_CONTROLLER
 	select SUN5I_HSTIMER
 
 config MACH_SUN7I
@@ -37,16 +37,12 @@ config MACH_SUN7I
 config MACH_SUN8I
 	bool "Allwinner A23 (sun8i) SoCs support"
 	default ARCH_SUNXI
-	select ARCH_HAS_RESET_CONTROLLER
 	select ARM_GIC
 	select MFD_SUN6I_PRCM
-	select RESET_CONTROLLER
 
 config MACH_SUN9I
 	bool "Allwinner (sun9i) SoCs support"
 	default ARCH_SUNXI
-	select ARCH_HAS_RESET_CONTROLLER
 	select ARM_GIC
-	select RESET_CONTROLLER
 
 endif
diff --git a/arch/arm/mach-tegra/cpuidle-tegra114.c b/arch/arm/mach-tegra/cpuidle-tegra114.c
index f2b586d..155807f 100644
--- a/arch/arm/mach-tegra/cpuidle-tegra114.c
+++ b/arch/arm/mach-tegra/cpuidle-tegra114.c
@@ -15,7 +15,7 @@
  */
 
 #include <asm/firmware.h>
-#include <linux/clockchips.h>
+#include <linux/tick.h>
 #include <linux/cpuidle.h>
 #include <linux/cpu_pm.h>
 #include <linux/kernel.h>
@@ -44,7 +44,7 @@ static int tegra114_idle_power_down(struct cpuidle_device *dev,
 	tegra_set_cpu_in_lp2();
 	cpu_pm_enter();
 
-	clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_ENTER, &dev->cpu);
+	tick_broadcast_enter();
 
 	call_firmware_op(prepare_idle);
 
@@ -52,7 +52,7 @@ static int tegra114_idle_power_down(struct cpuidle_device *dev,
 	if (call_firmware_op(do_idle, 0) == -ENOSYS)
 		cpu_suspend(0, tegra30_sleep_cpu_secondary_finish);
 
-	clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_EXIT, &dev->cpu);
+	tick_broadcast_exit();
 
 	cpu_pm_exit();
 	tegra_clear_cpu_in_lp2();
diff --git a/arch/arm/mach-tegra/cpuidle-tegra20.c b/arch/arm/mach-tegra/cpuidle-tegra20.c
index 4f25a7c..48844ae 100644
--- a/arch/arm/mach-tegra/cpuidle-tegra20.c
+++ b/arch/arm/mach-tegra/cpuidle-tegra20.c
@@ -20,7 +20,7 @@
  */
 
 #include <linux/clk/tegra.h>
-#include <linux/clockchips.h>
+#include <linux/tick.h>
 #include <linux/cpuidle.h>
 #include <linux/cpu_pm.h>
 #include <linux/kernel.h>
@@ -136,11 +136,11 @@ static bool tegra20_cpu_cluster_power_down(struct cpuidle_device *dev,
 	if (tegra20_reset_cpu_1() || !tegra_cpu_rail_off_ready())
 		return false;
 
-	clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_ENTER, &dev->cpu);
+	tick_broadcast_enter();
 
 	tegra_idle_lp2_last();
 
-	clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_EXIT, &dev->cpu);
+	tick_broadcast_exit();
 
 	if (cpu_online(1))
 		tegra20_wake_cpu1_from_reset();
@@ -153,13 +153,13 @@ static bool tegra20_idle_enter_lp2_cpu_1(struct cpuidle_device *dev,
 					 struct cpuidle_driver *drv,
 					 int index)
 {
-	clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_ENTER, &dev->cpu);
+	tick_broadcast_enter();
 
 	cpu_suspend(0, tegra20_sleep_cpu_secondary_finish);
 
 	tegra20_cpu_clear_resettable();
 
-	clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_EXIT, &dev->cpu);
+	tick_broadcast_exit();
 
 	return true;
 }
diff --git a/arch/arm/mach-tegra/cpuidle-tegra30.c b/arch/arm/mach-tegra/cpuidle-tegra30.c
index f8815ed..84d809a 100644
--- a/arch/arm/mach-tegra/cpuidle-tegra30.c
+++ b/arch/arm/mach-tegra/cpuidle-tegra30.c
@@ -20,7 +20,7 @@
  */
 
 #include <linux/clk/tegra.h>
-#include <linux/clockchips.h>
+#include <linux/tick.h>
 #include <linux/cpuidle.h>
 #include <linux/cpu_pm.h>
 #include <linux/kernel.h>
@@ -76,11 +76,11 @@ static bool tegra30_cpu_cluster_power_down(struct cpuidle_device *dev,
 		return false;
 	}
 
-	clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_ENTER, &dev->cpu);
+	tick_broadcast_enter();
 
 	tegra_idle_lp2_last();
 
-	clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_EXIT, &dev->cpu);
+	tick_broadcast_exit();
 
 	return true;
 }
@@ -90,13 +90,13 @@ static bool tegra30_cpu_core_power_down(struct cpuidle_device *dev,
 					struct cpuidle_driver *drv,
 					int index)
 {
-	clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_ENTER, &dev->cpu);
+	tick_broadcast_enter();
 
 	smp_wmb();
 
 	cpu_suspend(0, tegra30_sleep_cpu_secondary_finish);
 
-	clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_EXIT, &dev->cpu);
+	tick_broadcast_exit();
 
 	return true;
 }
diff --git a/arch/arm/mach-tegra/iomap.h b/arch/arm/mach-tegra/iomap.h
index ee79808..81dc950 100644
--- a/arch/arm/mach-tegra/iomap.h
+++ b/arch/arm/mach-tegra/iomap.h
@@ -31,21 +31,6 @@
 #define TEGRA_ARM_INT_DIST_BASE		0x50041000
 #define TEGRA_ARM_INT_DIST_SIZE		SZ_4K
 
-#define TEGRA_PRIMARY_ICTLR_BASE	0x60004000
-#define TEGRA_PRIMARY_ICTLR_SIZE	SZ_64
-
-#define TEGRA_SECONDARY_ICTLR_BASE	0x60004100
-#define TEGRA_SECONDARY_ICTLR_SIZE	SZ_64
-
-#define TEGRA_TERTIARY_ICTLR_BASE	0x60004200
-#define TEGRA_TERTIARY_ICTLR_SIZE	SZ_64
-
-#define TEGRA_QUATERNARY_ICTLR_BASE	0x60004300
-#define TEGRA_QUATERNARY_ICTLR_SIZE	SZ_64
-
-#define TEGRA_QUINARY_ICTLR_BASE	0x60004400
-#define TEGRA_QUINARY_ICTLR_SIZE	SZ_64
-
 #define TEGRA_TMR1_BASE			0x60005000
 #define TEGRA_TMR1_SIZE			SZ_8
 
diff --git a/arch/arm/mach-tegra/irq.c b/arch/arm/mach-tegra/irq.c
index ab95f53..3b9098d 100644
--- a/arch/arm/mach-tegra/irq.c
+++ b/arch/arm/mach-tegra/irq.c
@@ -30,43 +30,9 @@
 #include "board.h"
 #include "iomap.h"
 
-#define ICTLR_CPU_IEP_VFIQ	0x08
-#define ICTLR_CPU_IEP_FIR	0x14
-#define ICTLR_CPU_IEP_FIR_SET	0x18
-#define ICTLR_CPU_IEP_FIR_CLR	0x1c
-
-#define ICTLR_CPU_IER		0x20
-#define ICTLR_CPU_IER_SET	0x24
-#define ICTLR_CPU_IER_CLR	0x28
-#define ICTLR_CPU_IEP_CLASS	0x2C
-
-#define ICTLR_COP_IER		0x30
-#define ICTLR_COP_IER_SET	0x34
-#define ICTLR_COP_IER_CLR	0x38
-#define ICTLR_COP_IEP_CLASS	0x3c
-
-#define FIRST_LEGACY_IRQ 32
-#define TEGRA_MAX_NUM_ICTLRS	5
-
 #define SGI_MASK 0xFFFF
 
-static int num_ictlrs;
-
-static void __iomem *ictlr_reg_base[] = {
-	IO_ADDRESS(TEGRA_PRIMARY_ICTLR_BASE),
-	IO_ADDRESS(TEGRA_SECONDARY_ICTLR_BASE),
-	IO_ADDRESS(TEGRA_TERTIARY_ICTLR_BASE),
-	IO_ADDRESS(TEGRA_QUATERNARY_ICTLR_BASE),
-	IO_ADDRESS(TEGRA_QUINARY_ICTLR_BASE),
-};
-
 #ifdef CONFIG_PM_SLEEP
-static u32 cop_ier[TEGRA_MAX_NUM_ICTLRS];
-static u32 cop_iep[TEGRA_MAX_NUM_ICTLRS];
-static u32 cpu_ier[TEGRA_MAX_NUM_ICTLRS];
-static u32 cpu_iep[TEGRA_MAX_NUM_ICTLRS];
-
-static u32 ictlr_wake_mask[TEGRA_MAX_NUM_ICTLRS];
 static void __iomem *tegra_gic_cpu_base;
 #endif
 
@@ -83,140 +49,7 @@ bool tegra_pending_sgi(void)
 	return false;
 }
 
-static inline void tegra_irq_write_mask(unsigned int irq, unsigned long reg)
-{
-	void __iomem *base;
-	u32 mask;
-
-	BUG_ON(irq < FIRST_LEGACY_IRQ ||
-		irq >= FIRST_LEGACY_IRQ + num_ictlrs * 32);
-
-	base = ictlr_reg_base[(irq - FIRST_LEGACY_IRQ) / 32];
-	mask = BIT((irq - FIRST_LEGACY_IRQ) % 32);
-
-	__raw_writel(mask, base + reg);
-}
-
-static void tegra_mask(struct irq_data *d)
-{
-	if (d->hwirq < FIRST_LEGACY_IRQ)
-		return;
-
-	tegra_irq_write_mask(d->hwirq, ICTLR_CPU_IER_CLR);
-}
-
-static void tegra_unmask(struct irq_data *d)
-{
-	if (d->hwirq < FIRST_LEGACY_IRQ)
-		return;
-
-	tegra_irq_write_mask(d->hwirq, ICTLR_CPU_IER_SET);
-}
-
-static void tegra_ack(struct irq_data *d)
-{
-	if (d->hwirq < FIRST_LEGACY_IRQ)
-		return;
-
-	tegra_irq_write_mask(d->hwirq, ICTLR_CPU_IEP_FIR_CLR);
-}
-
-static void tegra_eoi(struct irq_data *d)
-{
-	if (d->hwirq < FIRST_LEGACY_IRQ)
-		return;
-
-	tegra_irq_write_mask(d->hwirq, ICTLR_CPU_IEP_FIR_CLR);
-}
-
-static int tegra_retrigger(struct irq_data *d)
-{
-	if (d->hwirq < FIRST_LEGACY_IRQ)
-		return 0;
-
-	tegra_irq_write_mask(d->hwirq, ICTLR_CPU_IEP_FIR_SET);
-
-	return 1;
-}
-
 #ifdef CONFIG_PM_SLEEP
-static int tegra_set_wake(struct irq_data *d, unsigned int enable)
-{
-	u32 irq = d->hwirq;
-	u32 index, mask;
-
-	if (irq < FIRST_LEGACY_IRQ ||
-		irq >= FIRST_LEGACY_IRQ + num_ictlrs * 32)
-		return -EINVAL;
-
-	index = ((irq - FIRST_LEGACY_IRQ) / 32);
-	mask = BIT((irq - FIRST_LEGACY_IRQ) % 32);
-	if (enable)
-		ictlr_wake_mask[index] |= mask;
-	else
-		ictlr_wake_mask[index] &= ~mask;
-
-	return 0;
-}
-
-static int tegra_legacy_irq_suspend(void)
-{
-	unsigned long flags;
-	int i;
-
-	local_irq_save(flags);
-	for (i = 0; i < num_ictlrs; i++) {
-		void __iomem *ictlr = ictlr_reg_base[i];
-		/* Save interrupt state */
-		cpu_ier[i] = readl_relaxed(ictlr + ICTLR_CPU_IER);
-		cpu_iep[i] = readl_relaxed(ictlr + ICTLR_CPU_IEP_CLASS);
-		cop_ier[i] = readl_relaxed(ictlr + ICTLR_COP_IER);
-		cop_iep[i] = readl_relaxed(ictlr + ICTLR_COP_IEP_CLASS);
-
-		/* Disable COP interrupts */
-		writel_relaxed(~0ul, ictlr + ICTLR_COP_IER_CLR);
-
-		/* Disable CPU interrupts */
-		writel_relaxed(~0ul, ictlr + ICTLR_CPU_IER_CLR);
-
-		/* Enable the wakeup sources of ictlr */
-		writel_relaxed(ictlr_wake_mask[i], ictlr + ICTLR_CPU_IER_SET);
-	}
-	local_irq_restore(flags);
-
-	return 0;
-}
-
-static void tegra_legacy_irq_resume(void)
-{
-	unsigned long flags;
-	int i;
-
-	local_irq_save(flags);
-	for (i = 0; i < num_ictlrs; i++) {
-		void __iomem *ictlr = ictlr_reg_base[i];
-		writel_relaxed(cpu_iep[i], ictlr + ICTLR_CPU_IEP_CLASS);
-		writel_relaxed(~0ul, ictlr + ICTLR_CPU_IER_CLR);
-		writel_relaxed(cpu_ier[i], ictlr + ICTLR_CPU_IER_SET);
-		writel_relaxed(cop_iep[i], ictlr + ICTLR_COP_IEP_CLASS);
-		writel_relaxed(~0ul, ictlr + ICTLR_COP_IER_CLR);
-		writel_relaxed(cop_ier[i], ictlr + ICTLR_COP_IER_SET);
-	}
-	local_irq_restore(flags);
-}
-
-static struct syscore_ops tegra_legacy_irq_syscore_ops = {
-	.suspend = tegra_legacy_irq_suspend,
-	.resume = tegra_legacy_irq_resume,
-};
-
-int tegra_legacy_irq_syscore_init(void)
-{
-	register_syscore_ops(&tegra_legacy_irq_syscore_ops);
-
-	return 0;
-}
-
 static int tegra_gic_notifier(struct notifier_block *self,
 			      unsigned long cmd, void *v)
 {
@@ -251,45 +84,19 @@ static void tegra114_gic_cpu_pm_registration(void)
 	cpu_pm_register_notifier(&tegra_gic_notifier_block);
 }
 #else
-#define tegra_set_wake NULL
 static void tegra114_gic_cpu_pm_registration(void) { }
 #endif
 
+static const struct of_device_id tegra_ictlr_match[] __initconst = {
+	{ .compatible = "nvidia,tegra20-ictlr" },
+	{ .compatible = "nvidia,tegra30-ictlr" },
+	{ }
+};
+
 void __init tegra_init_irq(void)
 {
-	int i;
-	void __iomem *distbase;
-
-	distbase = IO_ADDRESS(TEGRA_ARM_INT_DIST_BASE);
-	num_ictlrs = readl_relaxed(distbase + GIC_DIST_CTR) & 0x1f;
-
-	if (num_ictlrs > ARRAY_SIZE(ictlr_reg_base)) {
-		WARN(1, "Too many (%d) interrupt controllers found. Maximum is %d.",
-			num_ictlrs, ARRAY_SIZE(ictlr_reg_base));
-		num_ictlrs = ARRAY_SIZE(ictlr_reg_base);
-	}
-
-	for (i = 0; i < num_ictlrs; i++) {
-		void __iomem *ictlr = ictlr_reg_base[i];
-		writel(~0, ictlr + ICTLR_CPU_IER_CLR);
-		writel(0, ictlr + ICTLR_CPU_IEP_CLASS);
-	}
-
-	gic_arch_extn.irq_ack = tegra_ack;
-	gic_arch_extn.irq_eoi = tegra_eoi;
-	gic_arch_extn.irq_mask = tegra_mask;
-	gic_arch_extn.irq_unmask = tegra_unmask;
-	gic_arch_extn.irq_retrigger = tegra_retrigger;
-	gic_arch_extn.irq_set_wake = tegra_set_wake;
-	gic_arch_extn.flags = IRQCHIP_MASK_ON_SUSPEND;
-
-	/*
-	 * Check if there is a devicetree present, since the GIC will be
-	 * initialized elsewhere under DT.
-	 */
-	if (!of_have_populated_dt())
-		gic_init(0, 29, distbase,
-			IO_ADDRESS(TEGRA_ARM_PERIF_BASE + 0x100));
+	if (WARN_ON(!of_find_matching_node(NULL, tegra_ictlr_match)))
+		pr_warn("Outdated DT detected, suspend/resume will NOT work\n");
 
 	tegra114_gic_cpu_pm_registration();
 }
diff --git a/arch/arm/mach-tegra/irq.h b/arch/arm/mach-tegra/irq.h
index bc05ce5..5142649 100644
--- a/arch/arm/mach-tegra/irq.h
+++ b/arch/arm/mach-tegra/irq.h
@@ -19,10 +19,4 @@
 
 bool tegra_pending_sgi(void);
 
-#ifdef CONFIG_PM_SLEEP
-int tegra_legacy_irq_syscore_init(void);
-#else
-static inline int tegra_legacy_irq_syscore_init(void) { return 0; }
-#endif
-
 #endif
diff --git a/arch/arm/mach-tegra/tegra.c b/arch/arm/mach-tegra/tegra.c
index 914341b..861d884 100644
--- a/arch/arm/mach-tegra/tegra.c
+++ b/arch/arm/mach-tegra/tegra.c
@@ -82,7 +82,6 @@ static void __init tegra_dt_init_irq(void)
 {
 	tegra_init_irq();
 	irqchip_init();
-	tegra_legacy_irq_syscore_init();
 }
 
 static void __init tegra_dt_init(void)
diff --git a/arch/arm/mach-ux500/cpu.c b/arch/arm/mach-ux500/cpu.c
index dbb2970..6ced0f68 100644
--- a/arch/arm/mach-ux500/cpu.c
+++ b/arch/arm/mach-ux500/cpu.c
@@ -52,7 +52,7 @@ void ux500_restart(enum reboot_mode mode, const char *cmd)
 */
 void __init ux500_init_irq(void)
 {
-	gic_arch_extn.flags = IRQCHIP_SKIP_SET_WAKE | IRQCHIP_MASK_ON_SUSPEND;
+	gic_set_irqchip_flags(IRQCHIP_SKIP_SET_WAKE | IRQCHIP_MASK_ON_SUSPEND);
 	irqchip_init();
 
 	/*
diff --git a/arch/arm/mach-zynq/common.c b/arch/arm/mach-zynq/common.c
index c887196..58ef2a7 100644
--- a/arch/arm/mach-zynq/common.c
+++ b/arch/arm/mach-zynq/common.c
@@ -186,7 +186,7 @@ static void __init zynq_map_io(void)
 
 static void __init zynq_irq_init(void)
 {
-	gic_arch_extn.flags = IRQCHIP_SKIP_SET_WAKE | IRQCHIP_MASK_ON_SUSPEND;
+	gic_set_irqchip_flags(IRQCHIP_SKIP_SET_WAKE | IRQCHIP_MASK_ON_SUSPEND);
 	irqchip_init();
 }
 
diff --git a/arch/arm/mm/cache-l2x0.c b/arch/arm/mm/cache-l2x0.c
index c6c7696..8f15f70 100644
--- a/arch/arm/mm/cache-l2x0.c
+++ b/arch/arm/mm/cache-l2x0.c
@@ -1131,23 +1131,22 @@ static void __init l2c310_of_parse(const struct device_node *np,
 	}
 
 	ret = l2x0_cache_size_of_parse(np, aux_val, aux_mask, &assoc, SZ_512K);
-	if (ret)
-		return;
-
-	switch (assoc) {
-	case 16:
-		*aux_val &= ~L2X0_AUX_CTRL_ASSOC_MASK;
-		*aux_val |= L310_AUX_CTRL_ASSOCIATIVITY_16;
-		*aux_mask &= ~L2X0_AUX_CTRL_ASSOC_MASK;
-		break;
-	case 8:
-		*aux_val &= ~L2X0_AUX_CTRL_ASSOC_MASK;
-		*aux_mask &= ~L2X0_AUX_CTRL_ASSOC_MASK;
-		break;
-	default:
-		pr_err("L2C-310 OF cache associativity %d invalid, only 8 or 16 permitted\n",
-		       assoc);
-		break;
+	if (!ret) {
+		switch (assoc) {
+		case 16:
+			*aux_val &= ~L2X0_AUX_CTRL_ASSOC_MASK;
+			*aux_val |= L310_AUX_CTRL_ASSOCIATIVITY_16;
+			*aux_mask &= ~L2X0_AUX_CTRL_ASSOC_MASK;
+			break;
+		case 8:
+			*aux_val &= ~L2X0_AUX_CTRL_ASSOC_MASK;
+			*aux_mask &= ~L2X0_AUX_CTRL_ASSOC_MASK;
+			break;
+		default:
+			pr_err("L2C-310 OF cache associativity %d invalid, only 8 or 16 permitted\n",
+			       assoc);
+			break;
+		}
 	}
 
 	prefetch = l2x0_saved_regs.prefetch_ctrl;
diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
index 170a116..e315dfe 100644
--- a/arch/arm/mm/dma-mapping.c
+++ b/arch/arm/mm/dma-mapping.c
@@ -171,7 +171,7 @@ static int __dma_supported(struct device *dev, u64 mask, bool warn)
 	 */
 	if (sizeof(mask) != sizeof(dma_addr_t) &&
 	    mask > (dma_addr_t)~0 &&
-	    dma_to_pfn(dev, ~0) < max_pfn) {
+	    dma_to_pfn(dev, ~0) < max_pfn - 1) {
 		if (warn) {
 			dev_warn(dev, "Coherent DMA mask %#llx is larger than dma_addr_t allows\n",
 				 mask);
@@ -2027,6 +2027,13 @@ static bool arm_setup_iommu_dma_ops(struct device *dev, u64 dma_base, u64 size,
 	if (!iommu)
 		return false;
 
+	/*
+	 * currently arm_iommu_create_mapping() takes a max of size_t
+	 * for size param. So check this limit for now.
+	 */
+	if (size > SIZE_MAX)
+		return false;
+
 	mapping = arm_iommu_create_mapping(dev->bus, dma_base, size);
 	if (IS_ERR(mapping)) {
 		pr_warn("Failed to create %llu-byte IOMMU mapping for device %s\n",
diff --git a/arch/arm/mm/fault.c b/arch/arm/mm/fault.c
index a982dc3..6333d9c 100644
--- a/arch/arm/mm/fault.c
+++ b/arch/arm/mm/fault.c
@@ -552,6 +552,7 @@ do_DataAbort(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
 
 	pr_alert("Unhandled fault: %s (0x%03x) at 0x%08lx\n",
 		inf->name, fsr, addr);
+	show_pte(current->mm, addr);
 
 	info.si_signo = inf->sig;
 	info.si_errno = 0;
diff --git a/arch/arm/mm/pageattr.c b/arch/arm/mm/pageattr.c
index 004e35c..cf30daf 100644
--- a/arch/arm/mm/pageattr.c
+++ b/arch/arm/mm/pageattr.c
@@ -49,7 +49,10 @@ static int change_memory_common(unsigned long addr, int numpages,
 		WARN_ON_ONCE(1);
 	}
 
-	if (!is_module_address(start) || !is_module_address(end - 1))
+	if (start < MODULES_VADDR || start >= MODULES_END)
+		return -EINVAL;
+
+	if (end < MODULES_VADDR || start >= MODULES_END)
 		return -EINVAL;
 
 	data.set_mask = set_mask;
diff --git a/arch/arm/plat-omap/counter_32k.c b/arch/arm/plat-omap/counter_32k.c
index 61b4d70..2438b96 100644
--- a/arch/arm/plat-omap/counter_32k.c
+++ b/arch/arm/plat-omap/counter_32k.c
@@ -44,24 +44,20 @@ static u64 notrace omap_32k_read_sched_clock(void)
 }
 
 /**
- * omap_read_persistent_clock -  Return time from a persistent clock.
+ * omap_read_persistent_clock64 -  Return time from a persistent clock.
  *
  * Reads the time from a source which isn't disabled during PM, the
  * 32k sync timer.  Convert the cycles elapsed since last read into
- * nsecs and adds to a monotonically increasing timespec.
+ * nsecs and adds to a monotonically increasing timespec64.
  */
-static struct timespec persistent_ts;
+static struct timespec64 persistent_ts;
 static cycles_t cycles;
 static unsigned int persistent_mult, persistent_shift;
-static DEFINE_SPINLOCK(read_persistent_clock_lock);
 
-static void omap_read_persistent_clock(struct timespec *ts)
+static void omap_read_persistent_clock64(struct timespec64 *ts)
 {
 	unsigned long long nsecs;
 	cycles_t last_cycles;
-	unsigned long flags;
-
-	spin_lock_irqsave(&read_persistent_clock_lock, flags);
 
 	last_cycles = cycles;
 	cycles = sync32k_cnt_reg ? readl_relaxed(sync32k_cnt_reg) : 0;
@@ -69,11 +65,9 @@ static void omap_read_persistent_clock(struct timespec *ts)
 	nsecs = clocksource_cyc2ns(cycles - last_cycles,
 					persistent_mult, persistent_shift);
 
-	timespec_add_ns(&persistent_ts, nsecs);
+	timespec64_add_ns(&persistent_ts, nsecs);
 
 	*ts = persistent_ts;
-
-	spin_unlock_irqrestore(&read_persistent_clock_lock, flags);
 }
 
 /**
@@ -103,7 +97,7 @@ int __init omap_init_clocksource_32k(void __iomem *vbase)
 
 	/*
 	 * 120000 rough estimate from the calculations in
-	 * __clocksource_updatefreq_scale.
+	 * __clocksource_update_freq_scale.
 	 */
 	clocks_calc_mult_shift(&persistent_mult, &persistent_shift,
 			32768, NSEC_PER_SEC, 120000);
@@ -116,7 +110,7 @@ int __init omap_init_clocksource_32k(void __iomem *vbase)
 	}
 
 	sched_clock_register(omap_32k_read_sched_clock, 32, 32768);
-	register_persistent_clock(NULL, omap_read_persistent_clock);
+	register_persistent_clock(NULL, omap_read_persistent_clock64);
 	pr_info("OMAP clocksource: 32k_counter at 32768 Hz\n");
 
 	return 0;
diff --git a/arch/arm/plat-omap/dmtimer.c b/arch/arm/plat-omap/dmtimer.c
index db10169..8ca94d3 100644
--- a/arch/arm/plat-omap/dmtimer.c
+++ b/arch/arm/plat-omap/dmtimer.c
@@ -799,6 +799,7 @@ static int omap_dm_timer_probe(struct platform_device *pdev)
 	struct device *dev = &pdev->dev;
 	const struct of_device_id *match;
 	const struct dmtimer_platform_data *pdata;
+	int ret;
 
 	match = of_match_device(of_match_ptr(omap_timer_match), dev);
 	pdata = match ? match->data : dev->platform_data;
@@ -860,7 +861,12 @@ static int omap_dm_timer_probe(struct platform_device *pdev)
 	}
 
 	if (!timer->reserved) {
-		pm_runtime_get_sync(dev);
+		ret = pm_runtime_get_sync(dev);
+		if (ret < 0) {
+			dev_err(dev, "%s: pm_runtime_get_sync failed!\n",
+				__func__);
+			goto err_get_sync;
+		}
 		__omap_dm_timer_init_regs(timer);
 		pm_runtime_put(dev);
 	}
@@ -873,6 +879,11 @@ static int omap_dm_timer_probe(struct platform_device *pdev)
 	dev_dbg(dev, "Device Probed.\n");
 
 	return 0;
+
+err_get_sync:
+	pm_runtime_put_noidle(dev);
+	pm_runtime_disable(dev);
+	return ret;
 }
 
 /**
@@ -899,6 +910,8 @@ static int omap_dm_timer_remove(struct platform_device *pdev)
 		}
 	spin_unlock_irqrestore(&dm_timer_lock, flags);
 
+	pm_runtime_disable(&pdev->dev);
+
 	return ret;
 }
 
diff --git a/arch/arm64/boot/dts/apm/apm-storm.dtsi b/arch/arm64/boot/dts/apm/apm-storm.dtsi
index f1ad9c2..a857794 100644
--- a/arch/arm64/boot/dts/apm/apm-storm.dtsi
+++ b/arch/arm64/boot/dts/apm/apm-storm.dtsi
@@ -622,7 +622,7 @@
 		};
 
 		sgenet0: ethernet@1f210000 {
-			compatible = "apm,xgene-enet";
+			compatible = "apm,xgene1-sgenet";
 			status = "disabled";
 			reg = <0x0 0x1f210000 0x0 0xd100>,
 			      <0x0 0x1f200000 0x0 0Xc300>,
@@ -636,7 +636,7 @@
 		};
 
 		xgenet: ethernet@1f610000 {
-			compatible = "apm,xgene-enet";
+			compatible = "apm,xgene1-xgenet";
 			status = "disabled";
 			reg = <0x0 0x1f610000 0x0 0xd100>,
 			      <0x0 0x1f600000 0x0 0Xc300>,
diff --git a/arch/arm64/boot/dts/arm/foundation-v8.dts b/arch/arm64/boot/dts/arm/foundation-v8.dts
index 27f3296..4eac8dc 100644
--- a/arch/arm64/boot/dts/arm/foundation-v8.dts
+++ b/arch/arm64/boot/dts/arm/foundation-v8.dts
@@ -34,6 +34,7 @@
 			reg = <0x0 0x0>;
 			enable-method = "spin-table";
 			cpu-release-addr = <0x0 0x8000fff8>;
+			next-level-cache = <&L2_0>;
 		};
 		cpu@1 {
 			device_type = "cpu";
@@ -41,6 +42,7 @@
 			reg = <0x0 0x1>;
 			enable-method = "spin-table";
 			cpu-release-addr = <0x0 0x8000fff8>;
+			next-level-cache = <&L2_0>;
 		};
 		cpu@2 {
 			device_type = "cpu";
@@ -48,6 +50,7 @@
 			reg = <0x0 0x2>;
 			enable-method = "spin-table";
 			cpu-release-addr = <0x0 0x8000fff8>;
+			next-level-cache = <&L2_0>;
 		};
 		cpu@3 {
 			device_type = "cpu";
@@ -55,6 +58,11 @@
 			reg = <0x0 0x3>;
 			enable-method = "spin-table";
 			cpu-release-addr = <0x0 0x8000fff8>;
+			next-level-cache = <&L2_0>;
+		};
+
+		L2_0: l2-cache0 {
+			compatible = "cache";
 		};
 	};
 
diff --git a/arch/arm64/boot/dts/arm/juno-clocks.dtsi b/arch/arm64/boot/dts/arm/juno-clocks.dtsi
index ea2b566..c9b89ef 100644
--- a/arch/arm64/boot/dts/arm/juno-clocks.dtsi
+++ b/arch/arm64/boot/dts/arm/juno-clocks.dtsi
@@ -8,7 +8,7 @@
  */
 
 	/* SoC fixed clocks */
-	soc_uartclk: refclk72738khz {
+	soc_uartclk: refclk7273800hz {
 		compatible = "fixed-clock";
 		#clock-cells = <0>;
 		clock-frequency = <7273800>;
diff --git a/arch/arm64/boot/dts/arm/juno.dts b/arch/arm64/boot/dts/arm/juno.dts
index d429129..133ee59 100644
--- a/arch/arm64/boot/dts/arm/juno.dts
+++ b/arch/arm64/boot/dts/arm/juno.dts
@@ -39,6 +39,7 @@
 			reg = <0x0 0x0>;
 			device_type = "cpu";
 			enable-method = "psci";
+			next-level-cache = <&A57_L2>;
 		};
 
 		A57_1: cpu@1 {
@@ -46,6 +47,7 @@
 			reg = <0x0 0x1>;
 			device_type = "cpu";
 			enable-method = "psci";
+			next-level-cache = <&A57_L2>;
 		};
 
 		A53_0: cpu@100 {
@@ -53,6 +55,7 @@
 			reg = <0x0 0x100>;
 			device_type = "cpu";
 			enable-method = "psci";
+			next-level-cache = <&A53_L2>;
 		};
 
 		A53_1: cpu@101 {
@@ -60,6 +63,7 @@
 			reg = <0x0 0x101>;
 			device_type = "cpu";
 			enable-method = "psci";
+			next-level-cache = <&A53_L2>;
 		};
 
 		A53_2: cpu@102 {
@@ -67,6 +71,7 @@
 			reg = <0x0 0x102>;
 			device_type = "cpu";
 			enable-method = "psci";
+			next-level-cache = <&A53_L2>;
 		};
 
 		A53_3: cpu@103 {
@@ -74,6 +79,15 @@
 			reg = <0x0 0x103>;
 			device_type = "cpu";
 			enable-method = "psci";
+			next-level-cache = <&A53_L2>;
+		};
+
+		A57_L2: l2-cache0 {
+			compatible = "cache";
+		};
+
+		A53_L2: l2-cache1 {
+			compatible = "cache";
 		};
 	};
 
diff --git a/arch/arm64/boot/dts/arm/rtsm_ve-aemv8a.dts b/arch/arm64/boot/dts/arm/rtsm_ve-aemv8a.dts
index efc59b3..20addab 100644
--- a/arch/arm64/boot/dts/arm/rtsm_ve-aemv8a.dts
+++ b/arch/arm64/boot/dts/arm/rtsm_ve-aemv8a.dts
@@ -37,6 +37,7 @@
 			reg = <0x0 0x0>;
 			enable-method = "spin-table";
 			cpu-release-addr = <0x0 0x8000fff8>;
+			next-level-cache = <&L2_0>;
 		};
 		cpu@1 {
 			device_type = "cpu";
@@ -44,6 +45,7 @@
 			reg = <0x0 0x1>;
 			enable-method = "spin-table";
 			cpu-release-addr = <0x0 0x8000fff8>;
+			next-level-cache = <&L2_0>;
 		};
 		cpu@2 {
 			device_type = "cpu";
@@ -51,6 +53,7 @@
 			reg = <0x0 0x2>;
 			enable-method = "spin-table";
 			cpu-release-addr = <0x0 0x8000fff8>;
+			next-level-cache = <&L2_0>;
 		};
 		cpu@3 {
 			device_type = "cpu";
@@ -58,6 +61,11 @@
 			reg = <0x0 0x3>;
 			enable-method = "spin-table";
 			cpu-release-addr = <0x0 0x8000fff8>;
+			next-level-cache = <&L2_0>;
+		};
+
+		L2_0: l2-cache0 {
+			compatible = "cache";
 		};
 	};
 
diff --git a/arch/arm64/crypto/Makefile b/arch/arm64/crypto/Makefile
index 5720608..abb79b3 100644
--- a/arch/arm64/crypto/Makefile
+++ b/arch/arm64/crypto/Makefile
@@ -29,7 +29,7 @@ aes-ce-blk-y := aes-glue-ce.o aes-ce.o
 obj-$(CONFIG_CRYPTO_AES_ARM64_NEON_BLK) += aes-neon-blk.o
 aes-neon-blk-y := aes-glue-neon.o aes-neon.o
 
-AFLAGS_aes-ce.o		:= -DINTERLEAVE=2 -DINTERLEAVE_INLINE
+AFLAGS_aes-ce.o		:= -DINTERLEAVE=4
 AFLAGS_aes-neon.o	:= -DINTERLEAVE=4
 
 CFLAGS_aes-glue-ce.o	:= -DUSE_V8_CRYPTO_EXTENSIONS
diff --git a/arch/arm64/include/asm/assembler.h b/arch/arm64/include/asm/assembler.h
index 5901480..750bac4 100644
--- a/arch/arm64/include/asm/assembler.h
+++ b/arch/arm64/include/asm/assembler.h
@@ -20,6 +20,9 @@
 #error "Only include this from assembly code"
 #endif
 
+#ifndef __ASM_ASSEMBLER_H
+#define __ASM_ASSEMBLER_H
+
 #include <asm/ptrace.h>
 #include <asm/thread_info.h>
 
@@ -155,3 +158,5 @@ lr	.req	x30		// link register
 #endif
 	orr	\rd, \lbits, \hbits, lsl #32
 	.endm
+
+#endif	/* __ASM_ASSEMBLER_H */
diff --git a/arch/arm64/include/asm/cmpxchg.h b/arch/arm64/include/asm/cmpxchg.h
index cb95930..d8c25b7 100644
--- a/arch/arm64/include/asm/cmpxchg.h
+++ b/arch/arm64/include/asm/cmpxchg.h
@@ -246,14 +246,30 @@ static inline unsigned long __cmpxchg_mb(volatile void *ptr, unsigned long old,
 	__ret; \
 })
 
-#define this_cpu_cmpxchg_1(ptr, o, n) cmpxchg_local(raw_cpu_ptr(&(ptr)), o, n)
-#define this_cpu_cmpxchg_2(ptr, o, n) cmpxchg_local(raw_cpu_ptr(&(ptr)), o, n)
-#define this_cpu_cmpxchg_4(ptr, o, n) cmpxchg_local(raw_cpu_ptr(&(ptr)), o, n)
-#define this_cpu_cmpxchg_8(ptr, o, n) cmpxchg_local(raw_cpu_ptr(&(ptr)), o, n)
-
-#define this_cpu_cmpxchg_double_8(ptr1, ptr2, o1, o2, n1, n2) \
-	cmpxchg_double_local(raw_cpu_ptr(&(ptr1)), raw_cpu_ptr(&(ptr2)), \
-				o1, o2, n1, n2)
+#define _protect_cmpxchg_local(pcp, o, n)			\
+({								\
+	typeof(*raw_cpu_ptr(&(pcp))) __ret;			\
+	preempt_disable();					\
+	__ret = cmpxchg_local(raw_cpu_ptr(&(pcp)), o, n);	\
+	preempt_enable();					\
+	__ret;							\
+})
+
+#define this_cpu_cmpxchg_1(ptr, o, n) _protect_cmpxchg_local(ptr, o, n)
+#define this_cpu_cmpxchg_2(ptr, o, n) _protect_cmpxchg_local(ptr, o, n)
+#define this_cpu_cmpxchg_4(ptr, o, n) _protect_cmpxchg_local(ptr, o, n)
+#define this_cpu_cmpxchg_8(ptr, o, n) _protect_cmpxchg_local(ptr, o, n)
+
+#define this_cpu_cmpxchg_double_8(ptr1, ptr2, o1, o2, n1, n2)		\
+({									\
+	int __ret;							\
+	preempt_disable();						\
+	__ret = cmpxchg_double_local(	raw_cpu_ptr(&(ptr1)),		\
+					raw_cpu_ptr(&(ptr2)),		\
+					o1, o2, n1, n2);		\
+	preempt_enable();						\
+	__ret;								\
+})
 
 #define cmpxchg64(ptr,o,n)		cmpxchg((ptr),(o),(n))
 #define cmpxchg64_local(ptr,o,n)	cmpxchg_local((ptr),(o),(n))
diff --git a/arch/arm64/include/asm/cpuidle.h b/arch/arm64/include/asm/cpuidle.h
index 0710654..c60643f 100644
--- a/arch/arm64/include/asm/cpuidle.h
+++ b/arch/arm64/include/asm/cpuidle.h
@@ -1,6 +1,8 @@
 #ifndef __ASM_CPUIDLE_H
 #define __ASM_CPUIDLE_H
 
+#include <asm/proc-fns.h>
+
 #ifdef CONFIG_CPU_IDLE
 extern int cpu_init_idle(unsigned int cpu);
 extern int cpu_suspend(unsigned long arg);
diff --git a/arch/arm64/include/asm/esr.h b/arch/arm64/include/asm/esr.h
index 92bbae3..7052245 100644
--- a/arch/arm64/include/asm/esr.h
+++ b/arch/arm64/include/asm/esr.h
@@ -90,6 +90,7 @@
 #define ESR_ELx_FSC		(0x3F)
 #define ESR_ELx_FSC_TYPE	(0x3C)
 #define ESR_ELx_FSC_EXTABT	(0x10)
+#define ESR_ELx_FSC_ACCESS	(0x08)
 #define ESR_ELx_FSC_FAULT	(0x04)
 #define ESR_ELx_FSC_PERM	(0x0C)
 #define ESR_ELx_CV		(UL(1) << 24)
diff --git a/arch/arm64/include/asm/insn.h b/arch/arm64/include/asm/insn.h
index e2ff32a..d2f4942 100644
--- a/arch/arm64/include/asm/insn.h
+++ b/arch/arm64/include/asm/insn.h
@@ -264,8 +264,10 @@ __AARCH64_INSN_FUNCS(ands,	0x7F200000, 0x6A000000)
 __AARCH64_INSN_FUNCS(bics,	0x7F200000, 0x6A200000)
 __AARCH64_INSN_FUNCS(b,		0xFC000000, 0x14000000)
 __AARCH64_INSN_FUNCS(bl,	0xFC000000, 0x94000000)
-__AARCH64_INSN_FUNCS(cbz,	0xFE000000, 0x34000000)
-__AARCH64_INSN_FUNCS(cbnz,	0xFE000000, 0x35000000)
+__AARCH64_INSN_FUNCS(cbz,	0x7F000000, 0x34000000)
+__AARCH64_INSN_FUNCS(cbnz,	0x7F000000, 0x35000000)
+__AARCH64_INSN_FUNCS(tbz,	0x7F000000, 0x36000000)
+__AARCH64_INSN_FUNCS(tbnz,	0x7F000000, 0x37000000)
 __AARCH64_INSN_FUNCS(bcond,	0xFF000010, 0x54000000)
 __AARCH64_INSN_FUNCS(svc,	0xFFE0001F, 0xD4000001)
 __AARCH64_INSN_FUNCS(hvc,	0xFFE0001F, 0xD4000002)
diff --git a/arch/arm64/include/asm/jump_label.h b/arch/arm64/include/asm/jump_label.h
index 076a1c7..c0e5165 100644
--- a/arch/arm64/include/asm/jump_label.h
+++ b/arch/arm64/include/asm/jump_label.h
@@ -18,11 +18,12 @@
  */
 #ifndef __ASM_JUMP_LABEL_H
 #define __ASM_JUMP_LABEL_H
+
+#ifndef __ASSEMBLY__
+
 #include <linux/types.h>
 #include <asm/insn.h>
 
-#ifdef __KERNEL__
-
 #define JUMP_LABEL_NOP_SIZE		AARCH64_INSN_SIZE
 
 static __always_inline bool arch_static_branch(struct static_key *key)
@@ -39,8 +40,6 @@ l_yes:
 	return true;
 }
 
-#endif /* __KERNEL__ */
-
 typedef u64 jump_label_t;
 
 struct jump_entry {
@@ -49,4 +48,5 @@ struct jump_entry {
 	jump_label_t key;
 };
 
+#endif  /* __ASSEMBLY__ */
 #endif	/* __ASM_JUMP_LABEL_H */
diff --git a/arch/arm64/include/asm/kvm_arm.h b/arch/arm64/include/asm/kvm_arm.h
index 94674eb..ac6fafb 100644
--- a/arch/arm64/include/asm/kvm_arm.h
+++ b/arch/arm64/include/asm/kvm_arm.h
@@ -129,6 +129,9 @@
  * 40 bits wide (T0SZ = 24).  Systems with a PARange smaller than 40 bits are
  * not known to exist and will break with this configuration.
  *
+ * VTCR_EL2.PS is extracted from ID_AA64MMFR0_EL1.PARange at boot time
+ * (see hyp-init.S).
+ *
  * Note that when using 4K pages, we concatenate two first level page tables
  * together.
  *
@@ -138,7 +141,6 @@
 #ifdef CONFIG_ARM64_64K_PAGES
 /*
  * Stage2 translation configuration:
- * 40bits output (PS = 2)
  * 40bits input  (T0SZ = 24)
  * 64kB pages (TG0 = 1)
  * 2 level page tables (SL = 1)
@@ -150,7 +152,6 @@
 #else
 /*
  * Stage2 translation configuration:
- * 40bits output (PS = 2)
  * 40bits input  (T0SZ = 24)
  * 4kB pages (TG0 = 0)
  * 3 level page tables (SL = 1)
@@ -187,6 +188,7 @@
 
 /* For compatibility with fault code shared with 32-bit */
 #define FSC_FAULT	ESR_ELx_FSC_FAULT
+#define FSC_ACCESS	ESR_ELx_FSC_ACCESS
 #define FSC_PERM	ESR_ELx_FSC_PERM
 
 /* Hyp Prefetch Fault Address Register (HPFAR/HDFAR) */
diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index 8ac3c70f..f0f58c9 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -28,6 +28,8 @@
 #include <asm/kvm_asm.h>
 #include <asm/kvm_mmio.h>
 
+#define __KVM_HAVE_ARCH_INTC_INITIALIZED
+
 #if defined(CONFIG_KVM_ARM_MAX_VCPUS)
 #define KVM_MAX_VCPUS CONFIG_KVM_ARM_MAX_VCPUS
 #else
@@ -177,19 +179,10 @@ int kvm_unmap_hva(struct kvm *kvm, unsigned long hva);
 int kvm_unmap_hva_range(struct kvm *kvm,
 			unsigned long start, unsigned long end);
 void kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte);
+int kvm_age_hva(struct kvm *kvm, unsigned long start, unsigned long end);
+int kvm_test_age_hva(struct kvm *kvm, unsigned long hva);
 
 /* We do not have shadow page tables, hence the empty hooks */
-static inline int kvm_age_hva(struct kvm *kvm, unsigned long start,
-			      unsigned long end)
-{
-	return 0;
-}
-
-static inline int kvm_test_age_hva(struct kvm *kvm, unsigned long hva)
-{
-	return 0;
-}
-
 static inline void kvm_arch_mmu_notifier_invalidate_page(struct kvm *kvm,
 							 unsigned long address)
 {
diff --git a/arch/arm64/include/asm/kvm_mmio.h b/arch/arm64/include/asm/kvm_mmio.h
index 9f52beb..889c908 100644
--- a/arch/arm64/include/asm/kvm_mmio.h
+++ b/arch/arm64/include/asm/kvm_mmio.h
@@ -31,28 +31,6 @@ struct kvm_decode {
 	bool sign_extend;
 };
 
-/*
- * The in-kernel MMIO emulation code wants to use a copy of run->mmio,
- * which is an anonymous type. Use our own type instead.
- */
-struct kvm_exit_mmio {
-	phys_addr_t	phys_addr;
-	u8		data[8];
-	u32		len;
-	bool		is_write;
-	void		*private;
-};
-
-static inline void kvm_prepare_mmio(struct kvm_run *run,
-				    struct kvm_exit_mmio *mmio)
-{
-	run->mmio.phys_addr	= mmio->phys_addr;
-	run->mmio.len		= mmio->len;
-	run->mmio.is_write	= mmio->is_write;
-	memcpy(run->mmio.data, mmio->data, mmio->len);
-	run->exit_reason	= KVM_EXIT_MMIO;
-}
-
 int kvm_handle_mmio_return(struct kvm_vcpu *vcpu, struct kvm_run *run);
 int io_mem_abort(struct kvm_vcpu *vcpu, struct kvm_run *run,
 		 phys_addr_t fault_ipa);
diff --git a/arch/arm64/include/asm/kvm_mmu.h b/arch/arm64/include/asm/kvm_mmu.h
index 6458b53..bbfb600 100644
--- a/arch/arm64/include/asm/kvm_mmu.h
+++ b/arch/arm64/include/asm/kvm_mmu.h
@@ -158,6 +158,8 @@ static inline bool kvm_s2pmd_readonly(pmd_t *pmd)
 #define PTRS_PER_S2_PGD		(1 << PTRS_PER_S2_PGD_SHIFT)
 #define S2_PGD_ORDER		get_order(PTRS_PER_S2_PGD * sizeof(pgd_t))
 
+#define kvm_pgd_index(addr)	(((addr) >> PGDIR_SHIFT) & (PTRS_PER_S2_PGD - 1))
+
 /*
  * If we are concatenating first level stage-2 page tables, we would have less
  * than or equal to 16 pointers in the fake PGD, because that's what the
@@ -171,43 +173,6 @@ static inline bool kvm_s2pmd_readonly(pmd_t *pmd)
 #define KVM_PREALLOC_LEVEL	(0)
 #endif
 
-/**
- * kvm_prealloc_hwpgd - allocate inital table for VTTBR
- * @kvm:	The KVM struct pointer for the VM.
- * @pgd:	The kernel pseudo pgd
- *
- * When the kernel uses more levels of page tables than the guest, we allocate
- * a fake PGD and pre-populate it to point to the next-level page table, which
- * will be the real initial page table pointed to by the VTTBR.
- *
- * When KVM_PREALLOC_LEVEL==2, we allocate a single page for the PMD and
- * the kernel will use folded pud.  When KVM_PREALLOC_LEVEL==1, we
- * allocate 2 consecutive PUD pages.
- */
-static inline int kvm_prealloc_hwpgd(struct kvm *kvm, pgd_t *pgd)
-{
-	unsigned int i;
-	unsigned long hwpgd;
-
-	if (KVM_PREALLOC_LEVEL == 0)
-		return 0;
-
-	hwpgd = __get_free_pages(GFP_KERNEL | __GFP_ZERO, PTRS_PER_S2_PGD_SHIFT);
-	if (!hwpgd)
-		return -ENOMEM;
-
-	for (i = 0; i < PTRS_PER_S2_PGD; i++) {
-		if (KVM_PREALLOC_LEVEL == 1)
-			pgd_populate(NULL, pgd + i,
-				     (pud_t *)hwpgd + i * PTRS_PER_PUD);
-		else if (KVM_PREALLOC_LEVEL == 2)
-			pud_populate(NULL, pud_offset(pgd, 0) + i,
-				     (pmd_t *)hwpgd + i * PTRS_PER_PMD);
-	}
-
-	return 0;
-}
-
 static inline void *kvm_get_hwpgd(struct kvm *kvm)
 {
 	pgd_t *pgd = kvm->arch.pgd;
@@ -224,12 +189,11 @@ static inline void *kvm_get_hwpgd(struct kvm *kvm)
 	return pmd_offset(pud, 0);
 }
 
-static inline void kvm_free_hwpgd(struct kvm *kvm)
+static inline unsigned int kvm_get_hwpgd_size(void)
 {
-	if (KVM_PREALLOC_LEVEL > 0) {
-		unsigned long hwpgd = (unsigned long)kvm_get_hwpgd(kvm);
-		free_pages(hwpgd, PTRS_PER_S2_PGD_SHIFT);
-	}
+	if (KVM_PREALLOC_LEVEL > 0)
+		return PTRS_PER_S2_PGD * PAGE_SIZE;
+	return PTRS_PER_S2_PGD * sizeof(pgd_t);
 }
 
 static inline bool kvm_page_empty(void *ptr)
diff --git a/arch/arm64/include/asm/mmu_context.h b/arch/arm64/include/asm/mmu_context.h
index a9eee33..101a42b 100644
--- a/arch/arm64/include/asm/mmu_context.h
+++ b/arch/arm64/include/asm/mmu_context.h
@@ -151,6 +151,15 @@ switch_mm(struct mm_struct *prev, struct mm_struct *next,
 {
 	unsigned int cpu = smp_processor_id();
 
+	/*
+	 * init_mm.pgd does not contain any user mappings and it is always
+	 * active for kernel addresses in TTBR1. Just set the reserved TTBR0.
+	 */
+	if (next == &init_mm) {
+		cpu_set_reserved_ttbr0();
+		return;
+	}
+
 	if (!cpumask_test_and_set_cpu(cpu, mm_cpumask(next)) || prev != next)
 		check_and_switch_context(next, tsk);
 }
diff --git a/arch/arm64/include/asm/percpu.h b/arch/arm64/include/asm/percpu.h
index 09da25b..4fde8c1 100644
--- a/arch/arm64/include/asm/percpu.h
+++ b/arch/arm64/include/asm/percpu.h
@@ -204,25 +204,47 @@ static inline unsigned long __percpu_xchg(void *ptr, unsigned long val,
 	return ret;
 }
 
+#define _percpu_read(pcp)						\
+({									\
+	typeof(pcp) __retval;						\
+	preempt_disable();						\
+	__retval = (typeof(pcp))__percpu_read(raw_cpu_ptr(&(pcp)), 	\
+					      sizeof(pcp));		\
+	preempt_enable();						\
+	__retval;							\
+})
+
+#define _percpu_write(pcp, val)						\
+do {									\
+	preempt_disable();						\
+	__percpu_write(raw_cpu_ptr(&(pcp)), (unsigned long)(val), 	\
+				sizeof(pcp));				\
+	preempt_enable();						\
+} while(0)								\
+
+#define _pcp_protect(operation, pcp, val)			\
+({								\
+	typeof(pcp) __retval;					\
+	preempt_disable();					\
+	__retval = (typeof(pcp))operation(raw_cpu_ptr(&(pcp)),	\
+					  (val), sizeof(pcp));	\
+	preempt_enable();					\
+	__retval;						\
+})
+
 #define _percpu_add(pcp, val) \
-	__percpu_add(raw_cpu_ptr(&(pcp)), val, sizeof(pcp))
+	_pcp_protect(__percpu_add, pcp, val)
 
-#define _percpu_add_return(pcp, val) (typeof(pcp)) (_percpu_add(pcp, val))
+#define _percpu_add_return(pcp, val) _percpu_add(pcp, val)
 
 #define _percpu_and(pcp, val) \
-	__percpu_and(raw_cpu_ptr(&(pcp)), val, sizeof(pcp))
+	_pcp_protect(__percpu_and, pcp, val)
 
 #define _percpu_or(pcp, val) \
-	__percpu_or(raw_cpu_ptr(&(pcp)), val, sizeof(pcp))
-
-#define _percpu_read(pcp) (typeof(pcp))	\
-	(__percpu_read(raw_cpu_ptr(&(pcp)), sizeof(pcp)))
-
-#define _percpu_write(pcp, val) \
-	__percpu_write(raw_cpu_ptr(&(pcp)), (unsigned long)(val), sizeof(pcp))
+	_pcp_protect(__percpu_or, pcp, val)
 
 #define _percpu_xchg(pcp, val) (typeof(pcp)) \
-	(__percpu_xchg(raw_cpu_ptr(&(pcp)), (unsigned long)(val), sizeof(pcp)))
+	_pcp_protect(__percpu_xchg, pcp, (unsigned long)(val))
 
 #define this_cpu_add_1(pcp, val) _percpu_add(pcp, val)
 #define this_cpu_add_2(pcp, val) _percpu_add(pcp, val)
diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h
index 16449c535..800ec0e 100644
--- a/arch/arm64/include/asm/pgtable.h
+++ b/arch/arm64/include/asm/pgtable.h
@@ -460,7 +460,7 @@ static inline pud_t *pud_offset(pgd_t *pgd, unsigned long addr)
 static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
 {
 	const pteval_t mask = PTE_USER | PTE_PXN | PTE_UXN | PTE_RDONLY |
-			      PTE_PROT_NONE | PTE_VALID | PTE_WRITE;
+			      PTE_PROT_NONE | PTE_WRITE | PTE_TYPE_MASK;
 	pte_val(pte) = (pte_val(pte) & ~mask) | (pgprot_val(newprot) & mask);
 	return pte;
 }
diff --git a/arch/arm64/include/asm/proc-fns.h b/arch/arm64/include/asm/proc-fns.h
index 9a8fd84..941c375 100644
--- a/arch/arm64/include/asm/proc-fns.h
+++ b/arch/arm64/include/asm/proc-fns.h
@@ -39,7 +39,11 @@ extern u64 cpu_do_resume(phys_addr_t ptr, u64 idmap_ttbr);
 
 #include <asm/memory.h>
 
-#define cpu_switch_mm(pgd,mm) cpu_do_switch_mm(virt_to_phys(pgd),mm)
+#define cpu_switch_mm(pgd,mm)				\
+do {							\
+	BUG_ON(pgd == swapper_pg_dir);			\
+	cpu_do_switch_mm(virt_to_phys(pgd),mm);		\
+} while (0)
 
 #define cpu_get_pgd()					\
 ({							\
diff --git a/arch/arm64/include/asm/processor.h b/arch/arm64/include/asm/processor.h
index f9be30e..20e9591 100644
--- a/arch/arm64/include/asm/processor.h
+++ b/arch/arm64/include/asm/processor.h
@@ -45,7 +45,8 @@
 #define STACK_TOP		STACK_TOP_MAX
 #endif /* CONFIG_COMPAT */
 
-#define ARCH_LOW_ADDRESS_LIMIT	PHYS_MASK
+extern phys_addr_t arm64_dma_phys_limit;
+#define ARCH_LOW_ADDRESS_LIMIT	(arm64_dma_phys_limit - 1)
 #endif /* __KERNEL__ */
 
 struct debug_info {
diff --git a/arch/arm64/include/asm/tlb.h b/arch/arm64/include/asm/tlb.h
index c028fe3..53d9c35 100644
--- a/arch/arm64/include/asm/tlb.h
+++ b/arch/arm64/include/asm/tlb.h
@@ -48,6 +48,7 @@ static inline void tlb_flush(struct mmu_gather *tlb)
 static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t pte,
 				  unsigned long addr)
 {
+	__flush_tlb_pgtable(tlb->mm, addr);
 	pgtable_page_dtor(pte);
 	tlb_remove_entry(tlb, pte);
 }
@@ -56,6 +57,7 @@ static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t pte,
 static inline void __pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmdp,
 				  unsigned long addr)
 {
+	__flush_tlb_pgtable(tlb->mm, addr);
 	tlb_remove_entry(tlb, virt_to_page(pmdp));
 }
 #endif
@@ -64,6 +66,7 @@ static inline void __pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmdp,
 static inline void __pud_free_tlb(struct mmu_gather *tlb, pud_t *pudp,
 				  unsigned long addr)
 {
+	__flush_tlb_pgtable(tlb->mm, addr);
 	tlb_remove_entry(tlb, virt_to_page(pudp));
 }
 #endif
diff --git a/arch/arm64/include/asm/tlbflush.h b/arch/arm64/include/asm/tlbflush.h
index 73f0ce5..c3bb05b 100644
--- a/arch/arm64/include/asm/tlbflush.h
+++ b/arch/arm64/include/asm/tlbflush.h
@@ -24,11 +24,6 @@
 #include <linux/sched.h>
 #include <asm/cputype.h>
 
-extern void __cpu_flush_user_tlb_range(unsigned long, unsigned long, struct vm_area_struct *);
-extern void __cpu_flush_kern_tlb_range(unsigned long, unsigned long);
-
-extern struct cpu_tlb_fns cpu_tlb;
-
 /*
  *	TLB Management
  *	==============
@@ -149,6 +144,19 @@ static inline void flush_tlb_kernel_range(unsigned long start, unsigned long end
 }
 
 /*
+ * Used to invalidate the TLB (walk caches) corresponding to intermediate page
+ * table levels (pgd/pud/pmd).
+ */
+static inline void __flush_tlb_pgtable(struct mm_struct *mm,
+				       unsigned long uaddr)
+{
+	unsigned long addr = uaddr >> 12 | ((unsigned long)ASID(mm) << 48);
+
+	dsb(ishst);
+	asm("tlbi	vae1is, %0" : : "r" (addr));
+	dsb(ish);
+}
+/*
  * On AArch64, the cache coherency is handled via the set_pte_at() function.
  */
 static inline void update_mmu_cache(struct vm_area_struct *vma,
diff --git a/arch/arm64/include/uapi/asm/kvm.h b/arch/arm64/include/uapi/asm/kvm.h
index 3ef77a4..c154c0b7 100644
--- a/arch/arm64/include/uapi/asm/kvm.h
+++ b/arch/arm64/include/uapi/asm/kvm.h
@@ -191,6 +191,9 @@ struct kvm_arch_memory_slot {
 /* Highest supported SPI, from VGIC_NR_IRQS */
 #define KVM_ARM_IRQ_GIC_MAX		127
 
+/* One single KVM irqchip, ie. the VGIC */
+#define KVM_NR_IRQCHIPS          1
+
 /* PSCI interface */
 #define KVM_PSCI_FN_BASE		0x95c1ba5e
 #define KVM_PSCI_FN(n)			(KVM_PSCI_FN_BASE + (n))
diff --git a/arch/arm64/kernel/Makefile b/arch/arm64/kernel/Makefile
index bef04af..5ee07ee 100644
--- a/arch/arm64/kernel/Makefile
+++ b/arch/arm64/kernel/Makefile
@@ -15,8 +15,9 @@ CFLAGS_REMOVE_return_address.o = -pg
 arm64-obj-y		:= cputable.o debug-monitors.o entry.o irq.o fpsimd.o	\
 			   entry-fpsimd.o process.o ptrace.o setup.o signal.o	\
 			   sys.o stacktrace.o time.o traps.o io.o vdso.o	\
-			   hyp-stub.o psci.o cpu_ops.o insn.o return_address.o	\
-			   cpuinfo.o cpu_errata.o alternative.o cacheinfo.o
+			   hyp-stub.o psci.o psci-call.o cpu_ops.o insn.o	\
+			   return_address.o cpuinfo.o cpu_errata.o		\
+			   alternative.o cacheinfo.o
 
 arm64-obj-$(CONFIG_COMPAT)		+= sys32.o kuser32.o signal32.o 	\
 					   sys_compat.o entry32.o		\
diff --git a/arch/arm64/kernel/efi.c b/arch/arm64/kernel/efi.c
index b42c7b4..ab21e0d 100644
--- a/arch/arm64/kernel/efi.c
+++ b/arch/arm64/kernel/efi.c
@@ -337,7 +337,11 @@ core_initcall(arm64_dmi_init);
 
 static void efi_set_pgd(struct mm_struct *mm)
 {
-	cpu_switch_mm(mm->pgd, mm);
+	if (mm == &init_mm)
+		cpu_set_reserved_ttbr0();
+	else
+		cpu_switch_mm(mm->pgd, mm);
+
 	flush_tlb_all();
 	if (icache_is_aivivt())
 		__flush_icache_all();
@@ -354,3 +358,12 @@ void efi_virtmap_unload(void)
 	efi_set_pgd(current->active_mm);
 	preempt_enable();
 }
+
+/*
+ * UpdateCapsule() depends on the system being shutdown via
+ * ResetSystem().
+ */
+bool efi_poweroff_required(void)
+{
+	return efi_enabled(EFI_RUNTIME_SERVICES);
+}
diff --git a/arch/arm64/kernel/ftrace.c b/arch/arm64/kernel/ftrace.c
index cf8556a..c851be7 100644
--- a/arch/arm64/kernel/ftrace.c
+++ b/arch/arm64/kernel/ftrace.c
@@ -156,7 +156,7 @@ static int ftrace_modify_graph_caller(bool enable)
 
 	branch = aarch64_insn_gen_branch_imm(pc,
 					     (unsigned long)ftrace_graph_caller,
-					     AARCH64_INSN_BRANCH_LINK);
+					     AARCH64_INSN_BRANCH_NOLINK);
 	nop = aarch64_insn_gen_nop();
 
 	if (enable)
diff --git a/arch/arm64/kernel/head.S b/arch/arm64/kernel/head.S
index 8ce88e0..07f9305 100644
--- a/arch/arm64/kernel/head.S
+++ b/arch/arm64/kernel/head.S
@@ -585,8 +585,8 @@ ENDPROC(set_cpu_boot_mode_flag)
  * zeroing of .bss would clobber it.
  */
 	.pushsection	.data..cacheline_aligned
-ENTRY(__boot_cpu_mode)
 	.align	L1_CACHE_SHIFT
+ENTRY(__boot_cpu_mode)
 	.long	BOOT_CPU_MODE_EL2
 	.long	0
 	.popsection
diff --git a/arch/arm64/kernel/insn.c b/arch/arm64/kernel/insn.c
index 27d4864..c8eca88 100644
--- a/arch/arm64/kernel/insn.c
+++ b/arch/arm64/kernel/insn.c
@@ -87,8 +87,10 @@ static void __kprobes *patch_map(void *addr, int fixmap)
 
 	if (module && IS_ENABLED(CONFIG_DEBUG_SET_MODULE_RONX))
 		page = vmalloc_to_page(addr);
-	else
+	else if (!module && IS_ENABLED(CONFIG_DEBUG_RODATA))
 		page = virt_to_page(addr);
+	else
+		return addr;
 
 	BUG_ON(!page);
 	set_fixmap(fixmap, page_to_phys(page));
diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c
index fde9923..c6b1f3b 100644
--- a/arch/arm64/kernel/process.c
+++ b/arch/arm64/kernel/process.c
@@ -21,6 +21,7 @@
 #include <stdarg.h>
 
 #include <linux/compat.h>
+#include <linux/efi.h>
 #include <linux/export.h>
 #include <linux/sched.h>
 #include <linux/kernel.h>
@@ -150,6 +151,13 @@ void machine_restart(char *cmd)
 	local_irq_disable();
 	smp_send_stop();
 
+	/*
+	 * UpdateCapsule() depends on the system being reset via
+	 * ResetSystem().
+	 */
+	if (efi_enabled(EFI_RUNTIME_SERVICES))
+		efi_reboot(reboot_mode, NULL);
+
 	/* Now call the architecture specific reboot code. */
 	if (arm_pm_restart)
 		arm_pm_restart(reboot_mode, cmd);
diff --git a/arch/arm64/kernel/psci-call.S b/arch/arm64/kernel/psci-call.S
new file mode 100644
index 0000000..cf83e61
--- /dev/null
+++ b/arch/arm64/kernel/psci-call.S
@@ -0,0 +1,28 @@
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * Copyright (C) 2015 ARM Limited
+ *
+ * Author: Will Deacon <will.deacon@arm.com>
+ */
+
+#include <linux/linkage.h>
+
+/* int __invoke_psci_fn_hvc(u64 function_id, u64 arg0, u64 arg1, u64 arg2) */
+ENTRY(__invoke_psci_fn_hvc)
+	hvc	#0
+	ret
+ENDPROC(__invoke_psci_fn_hvc)
+
+/* int __invoke_psci_fn_smc(u64 function_id, u64 arg0, u64 arg1, u64 arg2) */
+ENTRY(__invoke_psci_fn_smc)
+	smc	#0
+	ret
+ENDPROC(__invoke_psci_fn_smc)
diff --git a/arch/arm64/kernel/psci.c b/arch/arm64/kernel/psci.c
index 3425f31..9b8a70a 100644
--- a/arch/arm64/kernel/psci.c
+++ b/arch/arm64/kernel/psci.c
@@ -57,6 +57,9 @@ static struct psci_operations psci_ops;
 static int (*invoke_psci_fn)(u64, u64, u64, u64);
 typedef int (*psci_initcall_t)(const struct device_node *);
 
+asmlinkage int __invoke_psci_fn_hvc(u64, u64, u64, u64);
+asmlinkage int __invoke_psci_fn_smc(u64, u64, u64, u64);
+
 enum psci_function {
 	PSCI_FN_CPU_SUSPEND,
 	PSCI_FN_CPU_ON,
@@ -109,40 +112,6 @@ static void psci_power_state_unpack(u32 power_state,
 			PSCI_0_2_POWER_STATE_AFFL_SHIFT;
 }
 
-/*
- * The following two functions are invoked via the invoke_psci_fn pointer
- * and will not be inlined, allowing us to piggyback on the AAPCS.
- */
-static noinline int __invoke_psci_fn_hvc(u64 function_id, u64 arg0, u64 arg1,
-					 u64 arg2)
-{
-	asm volatile(
-			__asmeq("%0", "x0")
-			__asmeq("%1", "x1")
-			__asmeq("%2", "x2")
-			__asmeq("%3", "x3")
-			"hvc	#0\n"
-		: "+r" (function_id)
-		: "r" (arg0), "r" (arg1), "r" (arg2));
-
-	return function_id;
-}
-
-static noinline int __invoke_psci_fn_smc(u64 function_id, u64 arg0, u64 arg1,
-					 u64 arg2)
-{
-	asm volatile(
-			__asmeq("%0", "x0")
-			__asmeq("%1", "x1")
-			__asmeq("%2", "x2")
-			__asmeq("%3", "x3")
-			"smc	#0\n"
-		: "+r" (function_id)
-		: "r" (arg0), "r" (arg1), "r" (arg2));
-
-	return function_id;
-}
-
 static int psci_get_version(void)
 {
 	int err;
diff --git a/arch/arm64/kernel/signal32.c b/arch/arm64/kernel/signal32.c
index c20a300..d26fcd4 100644
--- a/arch/arm64/kernel/signal32.c
+++ b/arch/arm64/kernel/signal32.c
@@ -154,8 +154,7 @@ int copy_siginfo_to_user32(compat_siginfo_t __user *to, const siginfo_t *from)
 	case __SI_TIMER:
 		 err |= __put_user(from->si_tid, &to->si_tid);
 		 err |= __put_user(from->si_overrun, &to->si_overrun);
-		 err |= __put_user((compat_uptr_t)(unsigned long)from->si_ptr,
-				   &to->si_ptr);
+		 err |= __put_user(from->si_int, &to->si_int);
 		break;
 	case __SI_POLL:
 		err |= __put_user(from->si_band, &to->si_band);
@@ -184,7 +183,7 @@ int copy_siginfo_to_user32(compat_siginfo_t __user *to, const siginfo_t *from)
 	case __SI_MESGQ: /* But this is */
 		err |= __put_user(from->si_pid, &to->si_pid);
 		err |= __put_user(from->si_uid, &to->si_uid);
-		err |= __put_user((compat_uptr_t)(unsigned long)from->si_ptr, &to->si_ptr);
+		err |= __put_user(from->si_int, &to->si_int);
 		break;
 	case __SI_SYS:
 		err |= __put_user((compat_uptr_t)(unsigned long)
diff --git a/arch/arm64/kernel/vdso.c b/arch/arm64/kernel/vdso.c
index 32aeea0..ec37ab3 100644
--- a/arch/arm64/kernel/vdso.c
+++ b/arch/arm64/kernel/vdso.c
@@ -200,7 +200,7 @@ up_fail:
 void update_vsyscall(struct timekeeper *tk)
 {
 	struct timespec xtime_coarse;
-	u32 use_syscall = strcmp(tk->tkr.clock->name, "arch_sys_counter");
+	u32 use_syscall = strcmp(tk->tkr_mono.clock->name, "arch_sys_counter");
 
 	++vdso_data->tb_seq_count;
 	smp_wmb();
@@ -213,11 +213,11 @@ void update_vsyscall(struct timekeeper *tk)
 	vdso_data->wtm_clock_nsec		= tk->wall_to_monotonic.tv_nsec;
 
 	if (!use_syscall) {
-		vdso_data->cs_cycle_last	= tk->tkr.cycle_last;
+		vdso_data->cs_cycle_last	= tk->tkr_mono.cycle_last;
 		vdso_data->xtime_clock_sec	= tk->xtime_sec;
-		vdso_data->xtime_clock_nsec	= tk->tkr.xtime_nsec;
-		vdso_data->cs_mult		= tk->tkr.mult;
-		vdso_data->cs_shift		= tk->tkr.shift;
+		vdso_data->xtime_clock_nsec	= tk->tkr_mono.xtime_nsec;
+		vdso_data->cs_mult		= tk->tkr_mono.mult;
+		vdso_data->cs_shift		= tk->tkr_mono.shift;
 	}
 
 	smp_wmb();
diff --git a/arch/arm64/kernel/vdso/gettimeofday.S b/arch/arm64/kernel/vdso/gettimeofday.S
index fe652ff..efa79e8 100644
--- a/arch/arm64/kernel/vdso/gettimeofday.S
+++ b/arch/arm64/kernel/vdso/gettimeofday.S
@@ -174,8 +174,6 @@ ENDPROC(__kernel_clock_gettime)
 /* int __kernel_clock_getres(clockid_t clock_id, struct timespec *res); */
 ENTRY(__kernel_clock_getres)
 	.cfi_startproc
-	cbz	w1, 3f
-
 	cmp	w0, #CLOCK_REALTIME
 	ccmp	w0, #CLOCK_MONOTONIC, #0x4, ne
 	b.ne	1f
@@ -188,6 +186,7 @@ ENTRY(__kernel_clock_getres)
 	b.ne	4f
 	ldr	x2, 6f
 2:
+	cbz	w1, 3f
 	stp	xzr, x2, [x1]
 
 3:	/* res == NULL. */
diff --git a/arch/arm64/kvm/Kconfig b/arch/arm64/kvm/Kconfig
index f5590c8..5105e29 100644
--- a/arch/arm64/kvm/Kconfig
+++ b/arch/arm64/kvm/Kconfig
@@ -18,6 +18,7 @@ if VIRTUALIZATION
 
 config KVM
 	bool "Kernel-based Virtual Machine (KVM) support"
+	depends on OF
 	select MMU_NOTIFIER
 	select PREEMPT_NOTIFIERS
 	select ANON_INODES
@@ -25,10 +26,10 @@ config KVM
 	select HAVE_KVM_ARCH_TLB_FLUSH_ALL
 	select KVM_MMIO
 	select KVM_ARM_HOST
-	select KVM_ARM_VGIC
-	select KVM_ARM_TIMER
 	select KVM_GENERIC_DIRTYLOG_READ_PROTECT
 	select SRCU
+	select HAVE_KVM_EVENTFD
+	select HAVE_KVM_IRQFD
 	---help---
 	  Support hosting virtualized guest machines.
 
@@ -50,17 +51,4 @@ config KVM_ARM_MAX_VCPUS
 	  large, so only choose a reasonable number that you expect to
 	  actually use.
 
-config KVM_ARM_VGIC
-	bool
-	depends on KVM_ARM_HOST && OF
-	select HAVE_KVM_IRQCHIP
-	---help---
-	  Adds support for a hardware assisted, in-kernel GIC emulation.
-
-config KVM_ARM_TIMER
-	bool
-	depends on KVM_ARM_VGIC
-	---help---
-	  Adds support for the Architected Timers in virtual machines.
-
 endif # VIRTUALIZATION
diff --git a/arch/arm64/kvm/Makefile b/arch/arm64/kvm/Makefile
index 4e6e09e..d5904f8 100644
--- a/arch/arm64/kvm/Makefile
+++ b/arch/arm64/kvm/Makefile
@@ -2,7 +2,7 @@
 # Makefile for Kernel-based Virtual Machine module
 #
 
-ccflags-y += -Ivirt/kvm -Iarch/arm64/kvm
+ccflags-y += -Iarch/arm64/kvm
 CFLAGS_arm.o := -I.
 CFLAGS_mmu.o := -I.
 
@@ -11,7 +11,7 @@ ARM=../../../arch/arm/kvm
 
 obj-$(CONFIG_KVM_ARM_HOST) += kvm.o
 
-kvm-$(CONFIG_KVM_ARM_HOST) += $(KVM)/kvm_main.o $(KVM)/coalesced_mmio.o
+kvm-$(CONFIG_KVM_ARM_HOST) += $(KVM)/kvm_main.o $(KVM)/coalesced_mmio.o $(KVM)/eventfd.o
 kvm-$(CONFIG_KVM_ARM_HOST) += $(ARM)/arm.o $(ARM)/mmu.o $(ARM)/mmio.o
 kvm-$(CONFIG_KVM_ARM_HOST) += $(ARM)/psci.o $(ARM)/perf.o
 
@@ -19,11 +19,11 @@ kvm-$(CONFIG_KVM_ARM_HOST) += emulate.o inject_fault.o regmap.o
 kvm-$(CONFIG_KVM_ARM_HOST) += hyp.o hyp-init.o handle_exit.o
 kvm-$(CONFIG_KVM_ARM_HOST) += guest.o reset.o sys_regs.o sys_regs_generic_v8.o
 
-kvm-$(CONFIG_KVM_ARM_VGIC) += $(KVM)/arm/vgic.o
-kvm-$(CONFIG_KVM_ARM_VGIC) += $(KVM)/arm/vgic-v2.o
-kvm-$(CONFIG_KVM_ARM_VGIC) += $(KVM)/arm/vgic-v2-emul.o
-kvm-$(CONFIG_KVM_ARM_VGIC) += vgic-v2-switch.o
-kvm-$(CONFIG_KVM_ARM_VGIC) += $(KVM)/arm/vgic-v3.o
-kvm-$(CONFIG_KVM_ARM_VGIC) += $(KVM)/arm/vgic-v3-emul.o
-kvm-$(CONFIG_KVM_ARM_VGIC) += vgic-v3-switch.o
-kvm-$(CONFIG_KVM_ARM_TIMER) += $(KVM)/arm/arch_timer.o
+kvm-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/vgic.o
+kvm-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/vgic-v2.o
+kvm-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/vgic-v2-emul.o
+kvm-$(CONFIG_KVM_ARM_HOST) += vgic-v2-switch.o
+kvm-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/vgic-v3.o
+kvm-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/vgic-v3-emul.o
+kvm-$(CONFIG_KVM_ARM_HOST) += vgic-v3-switch.o
+kvm-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/arch_timer.o
diff --git a/arch/arm64/mm/dma-mapping.c b/arch/arm64/mm/dma-mapping.c
index 0a24b9b..ef7d112 100644
--- a/arch/arm64/mm/dma-mapping.c
+++ b/arch/arm64/mm/dma-mapping.c
@@ -51,7 +51,7 @@ static int __init early_coherent_pool(char *p)
 }
 early_param("coherent_pool", early_coherent_pool);
 
-static void *__alloc_from_pool(size_t size, struct page **ret_page)
+static void *__alloc_from_pool(size_t size, struct page **ret_page, gfp_t flags)
 {
 	unsigned long val;
 	void *ptr = NULL;
@@ -67,6 +67,8 @@ static void *__alloc_from_pool(size_t size, struct page **ret_page)
 
 		*ret_page = phys_to_page(phys);
 		ptr = (void *)val;
+		if (flags & __GFP_ZERO)
+			memset(ptr, 0, size);
 	}
 
 	return ptr;
@@ -101,6 +103,7 @@ static void *__dma_alloc_coherent(struct device *dev, size_t size,
 		flags |= GFP_DMA;
 	if (IS_ENABLED(CONFIG_DMA_CMA) && (flags & __GFP_WAIT)) {
 		struct page *page;
+		void *addr;
 
 		size = PAGE_ALIGN(size);
 		page = dma_alloc_from_contiguous(dev, size >> PAGE_SHIFT,
@@ -109,7 +112,10 @@ static void *__dma_alloc_coherent(struct device *dev, size_t size,
 			return NULL;
 
 		*dma_handle = phys_to_dma(dev, page_to_phys(page));
-		return page_address(page);
+		addr = page_address(page);
+		if (flags & __GFP_ZERO)
+			memset(addr, 0, size);
+		return addr;
 	} else {
 		return swiotlb_alloc_coherent(dev, size, dma_handle, flags);
 	}
@@ -146,7 +152,7 @@ static void *__dma_alloc(struct device *dev, size_t size,
 
 	if (!coherent && !(flags & __GFP_WAIT)) {
 		struct page *page = NULL;
-		void *addr = __alloc_from_pool(size, &page);
+		void *addr = __alloc_from_pool(size, &page, flags);
 
 		if (addr)
 			*dma_handle = phys_to_dma(dev, page_to_phys(page));
@@ -348,8 +354,6 @@ static struct dma_map_ops swiotlb_dma_ops = {
 	.mapping_error = swiotlb_dma_mapping_error,
 };
 
-extern int swiotlb_late_init_with_default_size(size_t default_size);
-
 static int __init atomic_pool_init(void)
 {
 	pgprot_t prot = __pgprot(PROT_NORMAL_NC);
@@ -411,21 +415,13 @@ out:
 	return -ENOMEM;
 }
 
-static int __init swiotlb_late_init(void)
+static int __init arm64_dma_init(void)
 {
-	size_t swiotlb_size = min(SZ_64M, MAX_ORDER_NR_PAGES << PAGE_SHIFT);
+	int ret;
 
 	dma_ops = &swiotlb_dma_ops;
 
-	return swiotlb_late_init_with_default_size(swiotlb_size);
-}
-
-static int __init arm64_dma_init(void)
-{
-	int ret = 0;
-
-	ret |= swiotlb_late_init();
-	ret |= atomic_pool_init();
+	ret = atomic_pool_init();
 
 	return ret;
 }
diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c
index 71145f9..ae85da6 100644
--- a/arch/arm64/mm/init.c
+++ b/arch/arm64/mm/init.c
@@ -33,6 +33,7 @@
 #include <linux/dma-mapping.h>
 #include <linux/dma-contiguous.h>
 #include <linux/efi.h>
+#include <linux/swiotlb.h>
 
 #include <asm/fixmap.h>
 #include <asm/memory.h>
@@ -45,6 +46,7 @@
 #include "mm.h"
 
 phys_addr_t memstart_addr __read_mostly = 0;
+phys_addr_t arm64_dma_phys_limit __read_mostly;
 
 #ifdef CONFIG_BLK_DEV_INITRD
 static int __init early_initrd(char *p)
@@ -85,7 +87,7 @@ static void __init zone_sizes_init(unsigned long min, unsigned long max)
 
 	/* 4GB maximum for 32-bit only capable devices */
 	if (IS_ENABLED(CONFIG_ZONE_DMA)) {
-		max_dma = PFN_DOWN(max_zone_dma_phys());
+		max_dma = PFN_DOWN(arm64_dma_phys_limit);
 		zone_size[ZONE_DMA] = max_dma - min;
 	}
 	zone_size[ZONE_NORMAL] = max - max_dma;
@@ -156,8 +158,6 @@ early_param("mem", early_mem);
 
 void __init arm64_memblock_init(void)
 {
-	phys_addr_t dma_phys_limit = 0;
-
 	memblock_enforce_memory_limit(memory_limit);
 
 	/*
@@ -174,8 +174,10 @@ void __init arm64_memblock_init(void)
 
 	/* 4GB maximum for 32-bit only capable devices */
 	if (IS_ENABLED(CONFIG_ZONE_DMA))
-		dma_phys_limit = max_zone_dma_phys();
-	dma_contiguous_reserve(dma_phys_limit);
+		arm64_dma_phys_limit = max_zone_dma_phys();
+	else
+		arm64_dma_phys_limit = PHYS_MASK + 1;
+	dma_contiguous_reserve(arm64_dma_phys_limit);
 
 	memblock_allow_resize();
 	memblock_dump_all();
@@ -276,6 +278,8 @@ static void __init free_unused_memmap(void)
  */
 void __init mem_init(void)
 {
+	swiotlb_init(1);
+
 	set_max_mapnr(pfn_to_page(max_pfn) - mem_map);
 
 #ifndef CONFIG_SPARSEMEM_VMEMMAP
diff --git a/arch/arm64/mm/pageattr.c b/arch/arm64/mm/pageattr.c
index bb0ea94..1d3ec3d 100644
--- a/arch/arm64/mm/pageattr.c
+++ b/arch/arm64/mm/pageattr.c
@@ -51,7 +51,10 @@ static int change_memory_common(unsigned long addr, int numpages,
 		WARN_ON_ONCE(1);
 	}
 
-	if (!is_module_address(start) || !is_module_address(end - 1))
+	if (start < MODULES_VADDR || start >= MODULES_END)
+		return -EINVAL;
+
+	if (end < MODULES_VADDR || end >= MODULES_END)
 		return -EINVAL;
 
 	data.set_mask = set_mask;
diff --git a/arch/avr32/include/asm/elf.h b/arch/avr32/include/asm/elf.h
index d232888..0388ece 100644
--- a/arch/avr32/include/asm/elf.h
+++ b/arch/avr32/include/asm/elf.h
@@ -84,7 +84,7 @@ typedef struct user_fpu_struct elf_fpregset_t;
    the loader.  We need to make sure that it is out of the way of the program
    that it will "exec", and that there is sufficient room for the brk.  */
 
-#define ELF_ET_DYN_BASE         (2 * TASK_SIZE / 3)
+#define ELF_ET_DYN_BASE         (TASK_SIZE / 3 * 2)
 
 
 /* This yields a mask that user programs can use to figure out what
diff --git a/arch/c6x/include/asm/pgtable.h b/arch/c6x/include/asm/pgtable.h
index 78d4483b..ec4db6d 100644
--- a/arch/c6x/include/asm/pgtable.h
+++ b/arch/c6x/include/asm/pgtable.h
@@ -67,6 +67,11 @@ extern unsigned long empty_zero_page;
  */
 #define pgtable_cache_init()   do { } while (0)
 
+/*
+ * c6x is !MMU, so define the simpliest implementation
+ */
+#define pgprot_writecombine pgprot_noncached
+
 #include <asm-generic/pgtable.h>
 
 #endif /* _ASM_C6X_PGTABLE_H */
diff --git a/arch/frv/include/asm/pgtable.h b/arch/frv/include/asm/pgtable.h
index 93bcf2a..07d7a7e 100644
--- a/arch/frv/include/asm/pgtable.h
+++ b/arch/frv/include/asm/pgtable.h
@@ -123,12 +123,14 @@ extern unsigned long empty_zero_page;
 #define PGDIR_MASK		(~(PGDIR_SIZE - 1))
 #define PTRS_PER_PGD		64
 
+#define __PAGETABLE_PUD_FOLDED
 #define PUD_SHIFT		26
 #define PTRS_PER_PUD		1
 #define PUD_SIZE		(1UL << PUD_SHIFT)
 #define PUD_MASK		(~(PUD_SIZE - 1))
 #define PUE_SIZE		256
 
+#define __PAGETABLE_PMD_FOLDED
 #define PMD_SHIFT		26
 #define PMD_SIZE		(1UL << PMD_SHIFT)
 #define PMD_MASK		(~(PMD_SIZE - 1))
diff --git a/arch/frv/mb93090-mb00/pci-vdk.c b/arch/frv/mb93090-mb00/pci-vdk.c
index b073f4d..f211839 100644
--- a/arch/frv/mb93090-mb00/pci-vdk.c
+++ b/arch/frv/mb93090-mb00/pci-vdk.c
@@ -316,6 +316,7 @@ void pcibios_fixup_bus(struct pci_bus *bus)
 
 int __init pcibios_init(void)
 {
+	struct pci_bus *bus;
 	struct pci_ops *dir = NULL;
 	LIST_HEAD(resources);
 
@@ -383,12 +384,15 @@ int __init pcibios_init(void)
 	printk("PCI: Probing PCI hardware\n");
 	pci_add_resource(&resources, &pci_ioport_resource);
 	pci_add_resource(&resources, &pci_iomem_resource);
-	pci_scan_root_bus(NULL, 0, pci_root_ops, NULL, &resources);
+	bus = pci_scan_root_bus(NULL, 0, pci_root_ops, NULL, &resources);
 
 	pcibios_irq_init();
 	pcibios_fixup_irqs();
 	pcibios_resource_survey();
+	if (!bus)
+		return 0;
 
+	pci_bus_add_devices(bus);
 	return 0;
 }
 
diff --git a/arch/ia64/sn/kernel/io_init.c b/arch/ia64/sn/kernel/io_init.c
index 0b5ce82..1be65eb 100644
--- a/arch/ia64/sn/kernel/io_init.c
+++ b/arch/ia64/sn/kernel/io_init.c
@@ -271,7 +271,9 @@ sn_pci_controller_fixup(int segment, int busnum, struct pci_bus *bus)
  	if (bus == NULL) {
 		kfree(res);
 		kfree(controller);
+		return;
 	}
+	pci_bus_add_devices(bus);
 }
 
 /*
diff --git a/arch/m32r/include/asm/pgtable-2level.h b/arch/m32r/include/asm/pgtable-2level.h
index 8fd8ee7..421e6ba 100644
--- a/arch/m32r/include/asm/pgtable-2level.h
+++ b/arch/m32r/include/asm/pgtable-2level.h
@@ -13,6 +13,7 @@
  * the M32R is two-level, so we don't really have any
  * PMD directory physically.
  */
+#define __PAGETABLE_PMD_FOLDED
 #define PMD_SHIFT	22
 #define PTRS_PER_PMD	1
 
diff --git a/arch/m68k/coldfire/pci.c b/arch/m68k/coldfire/pci.c
index df96792..821de92 100644
--- a/arch/m68k/coldfire/pci.c
+++ b/arch/m68k/coldfire/pci.c
@@ -313,12 +313,16 @@ static int __init mcf_pci_init(void)
 	schedule_timeout(msecs_to_jiffies(200));
 
 	rootbus = pci_scan_bus(0, &mcf_pci_ops, NULL);
+	if (!rootbus)
+		return -ENODEV;
+
 	rootbus->resource[0] = &mcf_pci_io;
 	rootbus->resource[1] = &mcf_pci_mem;
 
 	pci_fixup_irqs(pci_common_swizzle, mcf_pci_map_irq);
 	pci_bus_size_bridges(rootbus);
 	pci_bus_assign_resources(rootbus);
+	pci_bus_add_devices(rootbus);
 	return 0;
 }
 
diff --git a/arch/m68k/configs/amiga_defconfig b/arch/m68k/configs/amiga_defconfig
index 1a10a08..ed1643b 100644
--- a/arch/m68k/configs/amiga_defconfig
+++ b/arch/m68k/configs/amiga_defconfig
@@ -521,8 +521,10 @@ CONFIG_NLS_MAC_TURKISH=m
 CONFIG_DLM=m
 CONFIG_MAGIC_SYSRQ=y
 CONFIG_ASYNC_RAID6_TEST=m
+CONFIG_TEST_HEXDUMP=m
 CONFIG_TEST_STRING_HELPERS=m
 CONFIG_TEST_KSTRTOX=m
+CONFIG_TEST_RHASHTABLE=m
 CONFIG_TEST_LKM=m
 CONFIG_TEST_USER_COPY=m
 CONFIG_TEST_BPF=m
@@ -573,5 +575,6 @@ CONFIG_CRYPTO_DRBG_HASH=y
 CONFIG_CRYPTO_DRBG_CTR=y
 CONFIG_CRYPTO_USER_API_HASH=m
 CONFIG_CRYPTO_USER_API_SKCIPHER=m
+CONFIG_CRYPTO_USER_API_RNG=m
 # CONFIG_CRYPTO_HW is not set
 CONFIG_XZ_DEC_TEST=m
diff --git a/arch/m68k/configs/apollo_defconfig b/arch/m68k/configs/apollo_defconfig
index 7859a73..d38822b 100644
--- a/arch/m68k/configs/apollo_defconfig
+++ b/arch/m68k/configs/apollo_defconfig
@@ -479,8 +479,10 @@ CONFIG_NLS_MAC_TURKISH=m
 CONFIG_DLM=m
 CONFIG_MAGIC_SYSRQ=y
 CONFIG_ASYNC_RAID6_TEST=m
+CONFIG_TEST_HEXDUMP=m
 CONFIG_TEST_STRING_HELPERS=m
 CONFIG_TEST_KSTRTOX=m
+CONFIG_TEST_RHASHTABLE=m
 CONFIG_TEST_LKM=m
 CONFIG_TEST_USER_COPY=m
 CONFIG_TEST_BPF=m
@@ -531,5 +533,6 @@ CONFIG_CRYPTO_DRBG_HASH=y
 CONFIG_CRYPTO_DRBG_CTR=y
 CONFIG_CRYPTO_USER_API_HASH=m
 CONFIG_CRYPTO_USER_API_SKCIPHER=m
+CONFIG_CRYPTO_USER_API_RNG=m
 # CONFIG_CRYPTO_HW is not set
 CONFIG_XZ_DEC_TEST=m
diff --git a/arch/m68k/configs/atari_defconfig b/arch/m68k/configs/atari_defconfig
index 372593a..c429199 100644
--- a/arch/m68k/configs/atari_defconfig
+++ b/arch/m68k/configs/atari_defconfig
@@ -501,8 +501,10 @@ CONFIG_NLS_MAC_TURKISH=m
 CONFIG_DLM=m
 CONFIG_MAGIC_SYSRQ=y
 CONFIG_ASYNC_RAID6_TEST=m
+CONFIG_TEST_HEXDUMP=m
 CONFIG_TEST_STRING_HELPERS=m
 CONFIG_TEST_KSTRTOX=m
+CONFIG_TEST_RHASHTABLE=m
 CONFIG_TEST_LKM=m
 CONFIG_TEST_USER_COPY=m
 CONFIG_TEST_BPF=m
@@ -553,5 +555,6 @@ CONFIG_CRYPTO_DRBG_HASH=y
 CONFIG_CRYPTO_DRBG_CTR=y
 CONFIG_CRYPTO_USER_API_HASH=m
 CONFIG_CRYPTO_USER_API_SKCIPHER=m
+CONFIG_CRYPTO_USER_API_RNG=m
 # CONFIG_CRYPTO_HW is not set
 CONFIG_XZ_DEC_TEST=m
diff --git a/arch/m68k/configs/bvme6000_defconfig b/arch/m68k/configs/bvme6000_defconfig
index f3bd35e..9b88037 100644
--- a/arch/m68k/configs/bvme6000_defconfig
+++ b/arch/m68k/configs/bvme6000_defconfig
@@ -472,8 +472,10 @@ CONFIG_NLS_MAC_TURKISH=m
 CONFIG_DLM=m
 CONFIG_MAGIC_SYSRQ=y
 CONFIG_ASYNC_RAID6_TEST=m
+CONFIG_TEST_HEXDUMP=m
 CONFIG_TEST_STRING_HELPERS=m
 CONFIG_TEST_KSTRTOX=m
+CONFIG_TEST_RHASHTABLE=m
 CONFIG_TEST_LKM=m
 CONFIG_TEST_USER_COPY=m
 CONFIG_TEST_BPF=m
@@ -524,5 +526,6 @@ CONFIG_CRYPTO_DRBG_HASH=y
 CONFIG_CRYPTO_DRBG_CTR=y
 CONFIG_CRYPTO_USER_API_HASH=m
 CONFIG_CRYPTO_USER_API_SKCIPHER=m
+CONFIG_CRYPTO_USER_API_RNG=m
 # CONFIG_CRYPTO_HW is not set
 CONFIG_XZ_DEC_TEST=m
diff --git a/arch/m68k/configs/hp300_defconfig b/arch/m68k/configs/hp300_defconfig
index 9f9793f..49ae337 100644
--- a/arch/m68k/configs/hp300_defconfig
+++ b/arch/m68k/configs/hp300_defconfig
@@ -481,8 +481,10 @@ CONFIG_NLS_MAC_TURKISH=m
 CONFIG_DLM=m
 CONFIG_MAGIC_SYSRQ=y
 CONFIG_ASYNC_RAID6_TEST=m
+CONFIG_TEST_HEXDUMP=m
 CONFIG_TEST_STRING_HELPERS=m
 CONFIG_TEST_KSTRTOX=m
+CONFIG_TEST_RHASHTABLE=m
 CONFIG_TEST_LKM=m
 CONFIG_TEST_USER_COPY=m
 CONFIG_TEST_BPF=m
@@ -533,5 +535,6 @@ CONFIG_CRYPTO_DRBG_HASH=y
 CONFIG_CRYPTO_DRBG_CTR=y
 CONFIG_CRYPTO_USER_API_HASH=m
 CONFIG_CRYPTO_USER_API_SKCIPHER=m
+CONFIG_CRYPTO_USER_API_RNG=m
 # CONFIG_CRYPTO_HW is not set
 CONFIG_XZ_DEC_TEST=m
diff --git a/arch/m68k/configs/mac_defconfig b/arch/m68k/configs/mac_defconfig
index 89f225c..ee143a5 100644
--- a/arch/m68k/configs/mac_defconfig
+++ b/arch/m68k/configs/mac_defconfig
@@ -503,8 +503,10 @@ CONFIG_NLS_MAC_TURKISH=m
 CONFIG_DLM=m
 CONFIG_MAGIC_SYSRQ=y
 CONFIG_ASYNC_RAID6_TEST=m
+CONFIG_TEST_HEXDUMP=m
 CONFIG_TEST_STRING_HELPERS=m
 CONFIG_TEST_KSTRTOX=m
+CONFIG_TEST_RHASHTABLE=m
 CONFIG_TEST_LKM=m
 CONFIG_TEST_USER_COPY=m
 CONFIG_TEST_BPF=m
@@ -555,5 +557,6 @@ CONFIG_CRYPTO_DRBG_HASH=y
 CONFIG_CRYPTO_DRBG_CTR=y
 CONFIG_CRYPTO_USER_API_HASH=m
 CONFIG_CRYPTO_USER_API_SKCIPHER=m
+CONFIG_CRYPTO_USER_API_RNG=m
 # CONFIG_CRYPTO_HW is not set
 CONFIG_XZ_DEC_TEST=m
diff --git a/arch/m68k/configs/multi_defconfig b/arch/m68k/configs/multi_defconfig
index d3cdb54..c777aa0 100644
--- a/arch/m68k/configs/multi_defconfig
+++ b/arch/m68k/configs/multi_defconfig
@@ -583,8 +583,10 @@ CONFIG_NLS_MAC_TURKISH=m
 CONFIG_DLM=m
 CONFIG_MAGIC_SYSRQ=y
 CONFIG_ASYNC_RAID6_TEST=m
+CONFIG_TEST_HEXDUMP=m
 CONFIG_TEST_STRING_HELPERS=m
 CONFIG_TEST_KSTRTOX=m
+CONFIG_TEST_RHASHTABLE=m
 CONFIG_TEST_LKM=m
 CONFIG_TEST_USER_COPY=m
 CONFIG_TEST_BPF=m
@@ -635,5 +637,6 @@ CONFIG_CRYPTO_DRBG_HASH=y
 CONFIG_CRYPTO_DRBG_CTR=y
 CONFIG_CRYPTO_USER_API_HASH=m
 CONFIG_CRYPTO_USER_API_SKCIPHER=m
+CONFIG_CRYPTO_USER_API_RNG=m
 # CONFIG_CRYPTO_HW is not set
 CONFIG_XZ_DEC_TEST=m
diff --git a/arch/m68k/configs/mvme147_defconfig b/arch/m68k/configs/mvme147_defconfig
index b4c7664..a7628a8 100644
--- a/arch/m68k/configs/mvme147_defconfig
+++ b/arch/m68k/configs/mvme147_defconfig
@@ -472,8 +472,10 @@ CONFIG_NLS_MAC_TURKISH=m
 CONFIG_DLM=m
 CONFIG_MAGIC_SYSRQ=y
 CONFIG_ASYNC_RAID6_TEST=m
+CONFIG_TEST_HEXDUMP=m
 CONFIG_TEST_STRING_HELPERS=m
 CONFIG_TEST_KSTRTOX=m
+CONFIG_TEST_RHASHTABLE=m
 CONFIG_TEST_LKM=m
 CONFIG_TEST_USER_COPY=m
 CONFIG_TEST_BPF=m
@@ -524,5 +526,6 @@ CONFIG_CRYPTO_DRBG_HASH=y
 CONFIG_CRYPTO_DRBG_CTR=y
 CONFIG_CRYPTO_USER_API_HASH=m
 CONFIG_CRYPTO_USER_API_SKCIPHER=m
+CONFIG_CRYPTO_USER_API_RNG=m
 # CONFIG_CRYPTO_HW is not set
 CONFIG_XZ_DEC_TEST=m
diff --git a/arch/m68k/configs/mvme16x_defconfig b/arch/m68k/configs/mvme16x_defconfig
index 0d4a26f..ebaa682 100644
--- a/arch/m68k/configs/mvme16x_defconfig
+++ b/arch/m68k/configs/mvme16x_defconfig
@@ -472,8 +472,10 @@ CONFIG_NLS_MAC_TURKISH=m
 CONFIG_DLM=m
 CONFIG_MAGIC_SYSRQ=y
 CONFIG_ASYNC_RAID6_TEST=m
+CONFIG_TEST_HEXDUMP=m
 CONFIG_TEST_STRING_HELPERS=m
 CONFIG_TEST_KSTRTOX=m
+CONFIG_TEST_RHASHTABLE=m
 CONFIG_TEST_LKM=m
 CONFIG_TEST_USER_COPY=m
 CONFIG_TEST_BPF=m
@@ -524,5 +526,6 @@ CONFIG_CRYPTO_DRBG_HASH=y
 CONFIG_CRYPTO_DRBG_CTR=y
 CONFIG_CRYPTO_USER_API_HASH=m
 CONFIG_CRYPTO_USER_API_SKCIPHER=m
+CONFIG_CRYPTO_USER_API_RNG=m
 # CONFIG_CRYPTO_HW is not set
 CONFIG_XZ_DEC_TEST=m
diff --git a/arch/m68k/configs/q40_defconfig b/arch/m68k/configs/q40_defconfig
index 5d581c5..2c16853 100644
--- a/arch/m68k/configs/q40_defconfig
+++ b/arch/m68k/configs/q40_defconfig
@@ -340,7 +340,7 @@ CONFIG_VETH=m
 # CONFIG_NET_VENDOR_INTEL is not set
 # CONFIG_NET_VENDOR_MARVELL is not set
 # CONFIG_NET_VENDOR_MICREL is not set
-CONFIG_NE2000=m
+CONFIG_NE2000=y
 # CONFIG_NET_VENDOR_QUALCOMM is not set
 # CONFIG_NET_VENDOR_ROCKER is not set
 # CONFIG_NET_VENDOR_SAMSUNG is not set
@@ -494,8 +494,10 @@ CONFIG_NLS_MAC_TURKISH=m
 CONFIG_DLM=m
 CONFIG_MAGIC_SYSRQ=y
 CONFIG_ASYNC_RAID6_TEST=m
+CONFIG_TEST_HEXDUMP=m
 CONFIG_TEST_STRING_HELPERS=m
 CONFIG_TEST_KSTRTOX=m
+CONFIG_TEST_RHASHTABLE=m
 CONFIG_TEST_LKM=m
 CONFIG_TEST_USER_COPY=m
 CONFIG_TEST_BPF=m
@@ -546,5 +548,6 @@ CONFIG_CRYPTO_DRBG_HASH=y
 CONFIG_CRYPTO_DRBG_CTR=y
 CONFIG_CRYPTO_USER_API_HASH=m
 CONFIG_CRYPTO_USER_API_SKCIPHER=m
+CONFIG_CRYPTO_USER_API_RNG=m
 # CONFIG_CRYPTO_HW is not set
 CONFIG_XZ_DEC_TEST=m
diff --git a/arch/m68k/configs/sun3_defconfig b/arch/m68k/configs/sun3_defconfig
index c6b49a4..e3056bf 100644
--- a/arch/m68k/configs/sun3_defconfig
+++ b/arch/m68k/configs/sun3_defconfig
@@ -473,8 +473,10 @@ CONFIG_NLS_MAC_TURKISH=m
 CONFIG_DLM=m
 CONFIG_MAGIC_SYSRQ=y
 CONFIG_ASYNC_RAID6_TEST=m
+CONFIG_TEST_HEXDUMP=m
 CONFIG_TEST_STRING_HELPERS=m
 CONFIG_TEST_KSTRTOX=m
+CONFIG_TEST_RHASHTABLE=m
 CONFIG_TEST_LKM=m
 CONFIG_TEST_USER_COPY=m
 CONFIG_TEST_BPF=m
@@ -524,5 +526,6 @@ CONFIG_CRYPTO_DRBG_HASH=y
 CONFIG_CRYPTO_DRBG_CTR=y
 CONFIG_CRYPTO_USER_API_HASH=m
 CONFIG_CRYPTO_USER_API_SKCIPHER=m
+CONFIG_CRYPTO_USER_API_RNG=m
 # CONFIG_CRYPTO_HW is not set
 CONFIG_XZ_DEC_TEST=m
diff --git a/arch/m68k/configs/sun3x_defconfig b/arch/m68k/configs/sun3x_defconfig
index b65785e..73c36b7 100644
--- a/arch/m68k/configs/sun3x_defconfig
+++ b/arch/m68k/configs/sun3x_defconfig
@@ -473,8 +473,10 @@ CONFIG_NLS_MAC_TURKISH=m
 CONFIG_DLM=m
 CONFIG_MAGIC_SYSRQ=y
 CONFIG_ASYNC_RAID6_TEST=m
+CONFIG_TEST_HEXDUMP=m
 CONFIG_TEST_STRING_HELPERS=m
 CONFIG_TEST_KSTRTOX=m
+CONFIG_TEST_RHASHTABLE=m
 CONFIG_TEST_LKM=m
 CONFIG_TEST_USER_COPY=m
 CONFIG_TEST_BPF=m
@@ -525,5 +527,6 @@ CONFIG_CRYPTO_DRBG_HASH=y
 CONFIG_CRYPTO_DRBG_CTR=y
 CONFIG_CRYPTO_USER_API_HASH=m
 CONFIG_CRYPTO_USER_API_SKCIPHER=m
+CONFIG_CRYPTO_USER_API_RNG=m
 # CONFIG_CRYPTO_HW is not set
 CONFIG_XZ_DEC_TEST=m
diff --git a/arch/m68k/include/asm/mcfqspi.h b/arch/m68k/include/asm/mcfqspi.h
index 7b51416..256da0e 100644
--- a/arch/m68k/include/asm/mcfqspi.h
+++ b/arch/m68k/include/asm/mcfqspi.h
@@ -11,11 +11,6 @@
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- *
 */
 
 #ifndef mcfqspi_h
diff --git a/arch/m68k/include/asm/pgtable_mm.h b/arch/m68k/include/asm/pgtable_mm.h
index 28a145b..35ed4a9 100644
--- a/arch/m68k/include/asm/pgtable_mm.h
+++ b/arch/m68k/include/asm/pgtable_mm.h
@@ -54,10 +54,12 @@
  */
 #ifdef CONFIG_SUN3
 #define PTRS_PER_PTE   16
+#define __PAGETABLE_PMD_FOLDED
 #define PTRS_PER_PMD   1
 #define PTRS_PER_PGD   2048
 #elif defined(CONFIG_COLDFIRE)
 #define PTRS_PER_PTE	512
+#define __PAGETABLE_PMD_FOLDED
 #define PTRS_PER_PMD	1
 #define PTRS_PER_PGD	1024
 #else
diff --git a/arch/m68k/kernel/pcibios.c b/arch/m68k/kernel/pcibios.c
index 931a31f..8520250 100644
--- a/arch/m68k/kernel/pcibios.c
+++ b/arch/m68k/kernel/pcibios.c
@@ -62,7 +62,7 @@ int pcibios_enable_device(struct pci_dev *dev, int mask)
 
 		r = dev->resource + idx;
 		if (!r->start && r->end) {
-			pr_err(KERN_ERR "PCI: Device %s not available because of resource collisions\n",
+			pr_err("PCI: Device %s not available because of resource collisions\n",
 				pci_name(dev));
 			return -EINVAL;
 		}
diff --git a/arch/m68k/lib/ashldi3.c b/arch/m68k/lib/ashldi3.c
index 7729f33..37234c2 100644
--- a/arch/m68k/lib/ashldi3.c
+++ b/arch/m68k/lib/ashldi3.c
@@ -11,12 +11,7 @@ any later version.
 GNU CC is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with GNU CC; see the file COPYING.  If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA.  */
+GNU General Public License for more details. */
 
 #define BITS_PER_UNIT 8
 
diff --git a/arch/m68k/lib/ashrdi3.c b/arch/m68k/lib/ashrdi3.c
index 18ea5f7..1d59345 100644
--- a/arch/m68k/lib/ashrdi3.c
+++ b/arch/m68k/lib/ashrdi3.c
@@ -11,12 +11,7 @@ any later version.
 GNU CC is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with GNU CC; see the file COPYING.  If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA.  */
+GNU General Public License for more details. */
 
 #define BITS_PER_UNIT 8
 
diff --git a/arch/m68k/lib/divsi3.S b/arch/m68k/lib/divsi3.S
index ec307b6..2c0ec85 100644
--- a/arch/m68k/lib/divsi3.S
+++ b/arch/m68k/lib/divsi3.S
@@ -19,12 +19,7 @@ distribution when not linked into another program.)
 This file is distributed in the hope that it will be useful, but
 WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this program; see the file COPYING.  If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA.  */
+General Public License for more details. */
 
 /* As a special exception, if you link this library with files
    compiled with GCC to produce an executable, this does not cause
diff --git a/arch/m68k/lib/lshrdi3.c b/arch/m68k/lib/lshrdi3.c
index d06442d..49e1ec8 100644
--- a/arch/m68k/lib/lshrdi3.c
+++ b/arch/m68k/lib/lshrdi3.c
@@ -11,12 +11,7 @@ any later version.
 GNU CC is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with GNU CC; see the file COPYING.  If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA.  */
+GNU General Public License for more details. */
 
 #define BITS_PER_UNIT 8
 
diff --git a/arch/m68k/lib/modsi3.S b/arch/m68k/lib/modsi3.S
index ef38494..1d9e0ef 100644
--- a/arch/m68k/lib/modsi3.S
+++ b/arch/m68k/lib/modsi3.S
@@ -19,12 +19,7 @@ distribution when not linked into another program.)
 This file is distributed in the hope that it will be useful, but
 WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this program; see the file COPYING.  If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA.  */
+General Public License for more details. */
 
 /* As a special exception, if you link this library with files
    compiled with GCC to produce an executable, this does not cause
diff --git a/arch/m68k/lib/muldi3.c b/arch/m68k/lib/muldi3.c
index ee5f0b1..9006d15 100644
--- a/arch/m68k/lib/muldi3.c
+++ b/arch/m68k/lib/muldi3.c
@@ -12,12 +12,7 @@ any later version.
 GNU CC is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with GNU CC; see the file COPYING.  If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA.  */
+GNU General Public License for more details. */
 
 #ifdef CONFIG_CPU_HAS_NO_MULDIV64
 
diff --git a/arch/m68k/lib/mulsi3.S b/arch/m68k/lib/mulsi3.S
index ce29ea3..c39ad4e 100644
--- a/arch/m68k/lib/mulsi3.S
+++ b/arch/m68k/lib/mulsi3.S
@@ -19,12 +19,7 @@ distribution when not linked into another program.)
 This file is distributed in the hope that it will be useful, but
 WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this program; see the file COPYING.  If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA.  */
+General Public License for more details. */
 
 /* As a special exception, if you link this library with files
    compiled with GCC to produce an executable, this does not cause
diff --git a/arch/m68k/lib/udivsi3.S b/arch/m68k/lib/udivsi3.S
index c424c4a..35a5446 100644
--- a/arch/m68k/lib/udivsi3.S
+++ b/arch/m68k/lib/udivsi3.S
@@ -19,12 +19,7 @@ distribution when not linked into another program.)
 This file is distributed in the hope that it will be useful, but
 WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this program; see the file COPYING.  If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA.  */
+General Public License for more details. */
 
 /* As a special exception, if you link this library with files
    compiled with GCC to produce an executable, this does not cause
diff --git a/arch/m68k/lib/umodsi3.S b/arch/m68k/lib/umodsi3.S
index 5def5f6..099da51 100644
--- a/arch/m68k/lib/umodsi3.S
+++ b/arch/m68k/lib/umodsi3.S
@@ -19,12 +19,7 @@ distribution when not linked into another program.)
 This file is distributed in the hope that it will be useful, but
 WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this program; see the file COPYING.  If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA.  */
+General Public License for more details. */
 
 /* As a special exception, if you link this library with files
    compiled with GCC to produce an executable, this does not cause
diff --git a/arch/m68k/mac/oss.c b/arch/m68k/mac/oss.c
index 5403712..bb11dce 100644
--- a/arch/m68k/mac/oss.c
+++ b/arch/m68k/mac/oss.c
@@ -47,9 +47,8 @@ void __init oss_init(void)
 	/* Disable all interrupts. Unlike a VIA it looks like we    */
 	/* do this by setting the source's interrupt level to zero. */
 
-	for (i = 0; i <= OSS_NUM_SOURCES; i++) {
+	for (i = 0; i < OSS_NUM_SOURCES; i++)
 		oss->irq_level[i] = 0;
-	}
 }
 
 /*
diff --git a/arch/metag/include/asm/io.h b/arch/metag/include/asm/io.h
index 9359e50..d5779b0 100644
--- a/arch/metag/include/asm/io.h
+++ b/arch/metag/include/asm/io.h
@@ -2,6 +2,7 @@
 #define _ASM_METAG_IO_H
 
 #include <linux/types.h>
+#include <asm/pgtable-bits.h>
 
 #define IO_SPACE_LIMIT  0
 
diff --git a/arch/metag/include/asm/pgtable-bits.h b/arch/metag/include/asm/pgtable-bits.h
new file mode 100644
index 0000000..25ba672
--- /dev/null
+++ b/arch/metag/include/asm/pgtable-bits.h
@@ -0,0 +1,104 @@
+/*
+ * Meta page table definitions.
+ */
+
+#ifndef _METAG_PGTABLE_BITS_H
+#define _METAG_PGTABLE_BITS_H
+
+#include <asm/metag_mem.h>
+
+/*
+ * Definitions for MMU descriptors
+ *
+ * These are the hardware bits in the MMCU pte entries.
+ * Derived from the Meta toolkit headers.
+ */
+#define _PAGE_PRESENT		MMCU_ENTRY_VAL_BIT
+#define _PAGE_WRITE		MMCU_ENTRY_WR_BIT
+#define _PAGE_PRIV		MMCU_ENTRY_PRIV_BIT
+/* Write combine bit - this can cause writes to occur out of order */
+#define _PAGE_WR_COMBINE	MMCU_ENTRY_WRC_BIT
+/* Sys coherent bit - this bit is never used by Linux */
+#define _PAGE_SYS_COHERENT	MMCU_ENTRY_SYS_BIT
+#define _PAGE_ALWAYS_ZERO_1	0x020
+#define _PAGE_CACHE_CTRL0	0x040
+#define _PAGE_CACHE_CTRL1	0x080
+#define _PAGE_ALWAYS_ZERO_2	0x100
+#define _PAGE_ALWAYS_ZERO_3	0x200
+#define _PAGE_ALWAYS_ZERO_4	0x400
+#define _PAGE_ALWAYS_ZERO_5	0x800
+
+/* These are software bits that we stuff into the gaps in the hardware
+ * pte entries that are not used.  Note, these DO get stored in the actual
+ * hardware, but the hardware just does not use them.
+ */
+#define _PAGE_ACCESSED		_PAGE_ALWAYS_ZERO_1
+#define _PAGE_DIRTY		_PAGE_ALWAYS_ZERO_2
+
+/* Pages owned, and protected by, the kernel. */
+#define _PAGE_KERNEL		_PAGE_PRIV
+
+/* No cacheing of this page */
+#define _PAGE_CACHE_WIN0	(MMCU_CWIN_UNCACHED << MMCU_ENTRY_CWIN_S)
+/* burst cacheing - good for data streaming */
+#define _PAGE_CACHE_WIN1	(MMCU_CWIN_BURST << MMCU_ENTRY_CWIN_S)
+/* One cache way per thread */
+#define _PAGE_CACHE_WIN2	(MMCU_CWIN_C1SET << MMCU_ENTRY_CWIN_S)
+/* Full on cacheing */
+#define _PAGE_CACHE_WIN3	(MMCU_CWIN_CACHED << MMCU_ENTRY_CWIN_S)
+
+#define _PAGE_CACHEABLE		(_PAGE_CACHE_WIN3 | _PAGE_WR_COMBINE)
+
+/* which bits are used for cache control ... */
+#define _PAGE_CACHE_MASK	(_PAGE_CACHE_CTRL0 | _PAGE_CACHE_CTRL1 | \
+				 _PAGE_WR_COMBINE)
+
+/* This is a mask of the bits that pte_modify is allowed to change. */
+#define _PAGE_CHG_MASK		(PAGE_MASK)
+
+#define _PAGE_SZ_SHIFT		1
+#define _PAGE_SZ_4K		(0x0)
+#define _PAGE_SZ_8K		(0x1 << _PAGE_SZ_SHIFT)
+#define _PAGE_SZ_16K		(0x2 << _PAGE_SZ_SHIFT)
+#define _PAGE_SZ_32K		(0x3 << _PAGE_SZ_SHIFT)
+#define _PAGE_SZ_64K		(0x4 << _PAGE_SZ_SHIFT)
+#define _PAGE_SZ_128K		(0x5 << _PAGE_SZ_SHIFT)
+#define _PAGE_SZ_256K		(0x6 << _PAGE_SZ_SHIFT)
+#define _PAGE_SZ_512K		(0x7 << _PAGE_SZ_SHIFT)
+#define _PAGE_SZ_1M		(0x8 << _PAGE_SZ_SHIFT)
+#define _PAGE_SZ_2M		(0x9 << _PAGE_SZ_SHIFT)
+#define _PAGE_SZ_4M		(0xa << _PAGE_SZ_SHIFT)
+#define _PAGE_SZ_MASK		(0xf << _PAGE_SZ_SHIFT)
+
+#if defined(CONFIG_PAGE_SIZE_4K)
+#define _PAGE_SZ		(_PAGE_SZ_4K)
+#elif defined(CONFIG_PAGE_SIZE_8K)
+#define _PAGE_SZ		(_PAGE_SZ_8K)
+#elif defined(CONFIG_PAGE_SIZE_16K)
+#define _PAGE_SZ		(_PAGE_SZ_16K)
+#endif
+#define _PAGE_TABLE		(_PAGE_SZ | _PAGE_PRESENT)
+
+#if defined(CONFIG_HUGETLB_PAGE_SIZE_8K)
+# define _PAGE_SZHUGE		(_PAGE_SZ_8K)
+#elif defined(CONFIG_HUGETLB_PAGE_SIZE_16K)
+# define _PAGE_SZHUGE		(_PAGE_SZ_16K)
+#elif defined(CONFIG_HUGETLB_PAGE_SIZE_32K)
+# define _PAGE_SZHUGE		(_PAGE_SZ_32K)
+#elif defined(CONFIG_HUGETLB_PAGE_SIZE_64K)
+# define _PAGE_SZHUGE		(_PAGE_SZ_64K)
+#elif defined(CONFIG_HUGETLB_PAGE_SIZE_128K)
+# define _PAGE_SZHUGE		(_PAGE_SZ_128K)
+#elif defined(CONFIG_HUGETLB_PAGE_SIZE_256K)
+# define _PAGE_SZHUGE		(_PAGE_SZ_256K)
+#elif defined(CONFIG_HUGETLB_PAGE_SIZE_512K)
+# define _PAGE_SZHUGE		(_PAGE_SZ_512K)
+#elif defined(CONFIG_HUGETLB_PAGE_SIZE_1M)
+# define _PAGE_SZHUGE		(_PAGE_SZ_1M)
+#elif defined(CONFIG_HUGETLB_PAGE_SIZE_2M)
+# define _PAGE_SZHUGE		(_PAGE_SZ_2M)
+#elif defined(CONFIG_HUGETLB_PAGE_SIZE_4M)
+# define _PAGE_SZHUGE		(_PAGE_SZ_4M)
+#endif
+
+#endif /* _METAG_PGTABLE_BITS_H */
diff --git a/arch/metag/include/asm/pgtable.h b/arch/metag/include/asm/pgtable.h
index d0604c0..ffa3a3a 100644
--- a/arch/metag/include/asm/pgtable.h
+++ b/arch/metag/include/asm/pgtable.h
@@ -5,6 +5,7 @@
 #ifndef _METAG_PGTABLE_H
 #define _METAG_PGTABLE_H
 
+#include <asm/pgtable-bits.h>
 #include <asm-generic/pgtable-nopmd.h>
 
 /* Invalid regions on Meta: 0x00000000-0x001FFFFF and 0xFFFF0000-0xFFFFFFFF */
@@ -21,100 +22,6 @@
 #endif
 
 /*
- * Definitions for MMU descriptors
- *
- * These are the hardware bits in the MMCU pte entries.
- * Derived from the Meta toolkit headers.
- */
-#define _PAGE_PRESENT		MMCU_ENTRY_VAL_BIT
-#define _PAGE_WRITE		MMCU_ENTRY_WR_BIT
-#define _PAGE_PRIV		MMCU_ENTRY_PRIV_BIT
-/* Write combine bit - this can cause writes to occur out of order */
-#define _PAGE_WR_COMBINE	MMCU_ENTRY_WRC_BIT
-/* Sys coherent bit - this bit is never used by Linux */
-#define _PAGE_SYS_COHERENT	MMCU_ENTRY_SYS_BIT
-#define _PAGE_ALWAYS_ZERO_1	0x020
-#define _PAGE_CACHE_CTRL0	0x040
-#define _PAGE_CACHE_CTRL1	0x080
-#define _PAGE_ALWAYS_ZERO_2	0x100
-#define _PAGE_ALWAYS_ZERO_3	0x200
-#define _PAGE_ALWAYS_ZERO_4	0x400
-#define _PAGE_ALWAYS_ZERO_5	0x800
-
-/* These are software bits that we stuff into the gaps in the hardware
- * pte entries that are not used.  Note, these DO get stored in the actual
- * hardware, but the hardware just does not use them.
- */
-#define _PAGE_ACCESSED		_PAGE_ALWAYS_ZERO_1
-#define _PAGE_DIRTY		_PAGE_ALWAYS_ZERO_2
-
-/* Pages owned, and protected by, the kernel. */
-#define _PAGE_KERNEL		_PAGE_PRIV
-
-/* No cacheing of this page */
-#define _PAGE_CACHE_WIN0	(MMCU_CWIN_UNCACHED << MMCU_ENTRY_CWIN_S)
-/* burst cacheing - good for data streaming */
-#define _PAGE_CACHE_WIN1	(MMCU_CWIN_BURST << MMCU_ENTRY_CWIN_S)
-/* One cache way per thread */
-#define _PAGE_CACHE_WIN2	(MMCU_CWIN_C1SET << MMCU_ENTRY_CWIN_S)
-/* Full on cacheing */
-#define _PAGE_CACHE_WIN3	(MMCU_CWIN_CACHED << MMCU_ENTRY_CWIN_S)
-
-#define _PAGE_CACHEABLE		(_PAGE_CACHE_WIN3 | _PAGE_WR_COMBINE)
-
-/* which bits are used for cache control ... */
-#define _PAGE_CACHE_MASK	(_PAGE_CACHE_CTRL0 | _PAGE_CACHE_CTRL1 | \
-				 _PAGE_WR_COMBINE)
-
-/* This is a mask of the bits that pte_modify is allowed to change. */
-#define _PAGE_CHG_MASK		(PAGE_MASK)
-
-#define _PAGE_SZ_SHIFT		1
-#define _PAGE_SZ_4K		(0x0)
-#define _PAGE_SZ_8K		(0x1 << _PAGE_SZ_SHIFT)
-#define _PAGE_SZ_16K		(0x2 << _PAGE_SZ_SHIFT)
-#define _PAGE_SZ_32K		(0x3 << _PAGE_SZ_SHIFT)
-#define _PAGE_SZ_64K		(0x4 << _PAGE_SZ_SHIFT)
-#define _PAGE_SZ_128K		(0x5 << _PAGE_SZ_SHIFT)
-#define _PAGE_SZ_256K		(0x6 << _PAGE_SZ_SHIFT)
-#define _PAGE_SZ_512K		(0x7 << _PAGE_SZ_SHIFT)
-#define _PAGE_SZ_1M		(0x8 << _PAGE_SZ_SHIFT)
-#define _PAGE_SZ_2M		(0x9 << _PAGE_SZ_SHIFT)
-#define _PAGE_SZ_4M		(0xa << _PAGE_SZ_SHIFT)
-#define _PAGE_SZ_MASK		(0xf << _PAGE_SZ_SHIFT)
-
-#if defined(CONFIG_PAGE_SIZE_4K)
-#define _PAGE_SZ		(_PAGE_SZ_4K)
-#elif defined(CONFIG_PAGE_SIZE_8K)
-#define _PAGE_SZ		(_PAGE_SZ_8K)
-#elif defined(CONFIG_PAGE_SIZE_16K)
-#define _PAGE_SZ		(_PAGE_SZ_16K)
-#endif
-#define _PAGE_TABLE		(_PAGE_SZ | _PAGE_PRESENT)
-
-#if defined(CONFIG_HUGETLB_PAGE_SIZE_8K)
-# define _PAGE_SZHUGE		(_PAGE_SZ_8K)
-#elif defined(CONFIG_HUGETLB_PAGE_SIZE_16K)
-# define _PAGE_SZHUGE		(_PAGE_SZ_16K)
-#elif defined(CONFIG_HUGETLB_PAGE_SIZE_32K)
-# define _PAGE_SZHUGE		(_PAGE_SZ_32K)
-#elif defined(CONFIG_HUGETLB_PAGE_SIZE_64K)
-# define _PAGE_SZHUGE		(_PAGE_SZ_64K)
-#elif defined(CONFIG_HUGETLB_PAGE_SIZE_128K)
-# define _PAGE_SZHUGE		(_PAGE_SZ_128K)
-#elif defined(CONFIG_HUGETLB_PAGE_SIZE_256K)
-# define _PAGE_SZHUGE		(_PAGE_SZ_256K)
-#elif defined(CONFIG_HUGETLB_PAGE_SIZE_512K)
-# define _PAGE_SZHUGE		(_PAGE_SZ_512K)
-#elif defined(CONFIG_HUGETLB_PAGE_SIZE_1M)
-# define _PAGE_SZHUGE		(_PAGE_SZ_1M)
-#elif defined(CONFIG_HUGETLB_PAGE_SIZE_2M)
-# define _PAGE_SZHUGE		(_PAGE_SZ_2M)
-#elif defined(CONFIG_HUGETLB_PAGE_SIZE_4M)
-# define _PAGE_SZHUGE		(_PAGE_SZ_4M)
-#endif
-
-/*
  * The Linux memory management assumes a three-level page table setup. On
  * Meta, we use that, but "fold" the mid level into the top-level page
  * table.
diff --git a/arch/metag/include/asm/processor.h b/arch/metag/include/asm/processor.h
index 881071c..13272fd 100644
--- a/arch/metag/include/asm/processor.h
+++ b/arch/metag/include/asm/processor.h
@@ -149,8 +149,8 @@ extern void exit_thread(void);
 
 unsigned long get_wchan(struct task_struct *p);
 
-#define	KSTK_EIP(tsk)	((tsk)->thread.kernel_context->CurrPC)
-#define	KSTK_ESP(tsk)	((tsk)->thread.kernel_context->AX[0].U0)
+#define	KSTK_EIP(tsk)	(task_pt_regs(tsk)->ctx.CurrPC)
+#define	KSTK_ESP(tsk)	(task_pt_regs(tsk)->ctx.AX[0].U0)
 
 #define user_stack_pointer(regs)        ((regs)->ctx.AX[0].U0)
 
diff --git a/arch/microblaze/kernel/entry.S b/arch/microblaze/kernel/entry.S
index 0536bc0..ef54851 100644
--- a/arch/microblaze/kernel/entry.S
+++ b/arch/microblaze/kernel/entry.S
@@ -348,8 +348,9 @@ C_ENTRY(_user_exception):
  * The LP register should point to the location where the called function
  * should return.  [note that MAKE_SYS_CALL uses label 1] */
 	/* See if the system call number is valid */
+	blti	r12, 5f
 	addi	r11, r12, -__NR_syscalls;
-	bgei	r11,5f;
+	bgei	r11, 5f;
 	/* Figure out which function to use for this system call.  */
 	/* Note Microblaze barrel shift is optional, so don't rely on it */
 	add	r12, r12, r12;			/* convert num -> ptr */
@@ -375,7 +376,7 @@ C_ENTRY(_user_exception):
 
 	/* The syscall number is invalid, return an error.  */
 5:
-	rtsd	r15, 8;		/* looks like a normal subroutine return */
+	braid	ret_from_trap
 	addi	r3, r0, -ENOSYS;
 
 /* Entry point used to return from a syscall/trap */
@@ -411,7 +412,7 @@ C_ENTRY(ret_from_trap):
 	bri	1b
 
 	/* Maybe handle a signal */
-5:	
+5:
 	andi	r11, r19, _TIF_SIGPENDING | _TIF_NOTIFY_RESUME;
 	beqi	r11, 4f;		/* Signals to handle, handle them */
 
diff --git a/arch/microblaze/pci/pci-common.c b/arch/microblaze/pci/pci-common.c
index 48528fb..ae838ed 100644
--- a/arch/microblaze/pci/pci-common.c
+++ b/arch/microblaze/pci/pci-common.c
@@ -1382,6 +1382,10 @@ static int __init pcibios_init(void)
 
 	/* Call common code to handle resource allocation */
 	pcibios_resource_survey();
+	list_for_each_entry_safe(hose, tmp, &hose_list, list_node) {
+		if (hose->bus)
+			pci_bus_add_devices(hose->bus);
+	}
 
 	return 0;
 }
diff --git a/arch/mips/include/asm/asmmacro-32.h b/arch/mips/include/asm/asmmacro-32.h
index cdac7b3..8038647 100644
--- a/arch/mips/include/asm/asmmacro-32.h
+++ b/arch/mips/include/asm/asmmacro-32.h
@@ -16,38 +16,38 @@
 	.set push
 	SET_HARDFLOAT
 	cfc1	\tmp,  fcr31
-	swc1	$f0,  THREAD_FPR0_LS64(\thread)
-	swc1	$f1,  THREAD_FPR1_LS64(\thread)
-	swc1	$f2,  THREAD_FPR2_LS64(\thread)
-	swc1	$f3,  THREAD_FPR3_LS64(\thread)
-	swc1	$f4,  THREAD_FPR4_LS64(\thread)
-	swc1	$f5,  THREAD_FPR5_LS64(\thread)
-	swc1	$f6,  THREAD_FPR6_LS64(\thread)
-	swc1	$f7,  THREAD_FPR7_LS64(\thread)
-	swc1	$f8,  THREAD_FPR8_LS64(\thread)
-	swc1	$f9,  THREAD_FPR9_LS64(\thread)
-	swc1	$f10, THREAD_FPR10_LS64(\thread)
-	swc1	$f11, THREAD_FPR11_LS64(\thread)
-	swc1	$f12, THREAD_FPR12_LS64(\thread)
-	swc1	$f13, THREAD_FPR13_LS64(\thread)
-	swc1	$f14, THREAD_FPR14_LS64(\thread)
-	swc1	$f15, THREAD_FPR15_LS64(\thread)
-	swc1	$f16, THREAD_FPR16_LS64(\thread)
-	swc1	$f17, THREAD_FPR17_LS64(\thread)
-	swc1	$f18, THREAD_FPR18_LS64(\thread)
-	swc1	$f19, THREAD_FPR19_LS64(\thread)
-	swc1	$f20, THREAD_FPR20_LS64(\thread)
-	swc1	$f21, THREAD_FPR21_LS64(\thread)
-	swc1	$f22, THREAD_FPR22_LS64(\thread)
-	swc1	$f23, THREAD_FPR23_LS64(\thread)
-	swc1	$f24, THREAD_FPR24_LS64(\thread)
-	swc1	$f25, THREAD_FPR25_LS64(\thread)
-	swc1	$f26, THREAD_FPR26_LS64(\thread)
-	swc1	$f27, THREAD_FPR27_LS64(\thread)
-	swc1	$f28, THREAD_FPR28_LS64(\thread)
-	swc1	$f29, THREAD_FPR29_LS64(\thread)
-	swc1	$f30, THREAD_FPR30_LS64(\thread)
-	swc1	$f31, THREAD_FPR31_LS64(\thread)
+	swc1	$f0,  THREAD_FPR0(\thread)
+	swc1	$f1,  THREAD_FPR1(\thread)
+	swc1	$f2,  THREAD_FPR2(\thread)
+	swc1	$f3,  THREAD_FPR3(\thread)
+	swc1	$f4,  THREAD_FPR4(\thread)
+	swc1	$f5,  THREAD_FPR5(\thread)
+	swc1	$f6,  THREAD_FPR6(\thread)
+	swc1	$f7,  THREAD_FPR7(\thread)
+	swc1	$f8,  THREAD_FPR8(\thread)
+	swc1	$f9,  THREAD_FPR9(\thread)
+	swc1	$f10, THREAD_FPR10(\thread)
+	swc1	$f11, THREAD_FPR11(\thread)
+	swc1	$f12, THREAD_FPR12(\thread)
+	swc1	$f13, THREAD_FPR13(\thread)
+	swc1	$f14, THREAD_FPR14(\thread)
+	swc1	$f15, THREAD_FPR15(\thread)
+	swc1	$f16, THREAD_FPR16(\thread)
+	swc1	$f17, THREAD_FPR17(\thread)
+	swc1	$f18, THREAD_FPR18(\thread)
+	swc1	$f19, THREAD_FPR19(\thread)
+	swc1	$f20, THREAD_FPR20(\thread)
+	swc1	$f21, THREAD_FPR21(\thread)
+	swc1	$f22, THREAD_FPR22(\thread)
+	swc1	$f23, THREAD_FPR23(\thread)
+	swc1	$f24, THREAD_FPR24(\thread)
+	swc1	$f25, THREAD_FPR25(\thread)
+	swc1	$f26, THREAD_FPR26(\thread)
+	swc1	$f27, THREAD_FPR27(\thread)
+	swc1	$f28, THREAD_FPR28(\thread)
+	swc1	$f29, THREAD_FPR29(\thread)
+	swc1	$f30, THREAD_FPR30(\thread)
+	swc1	$f31, THREAD_FPR31(\thread)
 	sw	\tmp, THREAD_FCR31(\thread)
 	.set pop
 	.endm
@@ -56,38 +56,38 @@
 	.set push
 	SET_HARDFLOAT
 	lw	\tmp, THREAD_FCR31(\thread)
-	lwc1	$f0,  THREAD_FPR0_LS64(\thread)
-	lwc1	$f1,  THREAD_FPR1_LS64(\thread)
-	lwc1	$f2,  THREAD_FPR2_LS64(\thread)
-	lwc1	$f3,  THREAD_FPR3_LS64(\thread)
-	lwc1	$f4,  THREAD_FPR4_LS64(\thread)
-	lwc1	$f5,  THREAD_FPR5_LS64(\thread)
-	lwc1	$f6,  THREAD_FPR6_LS64(\thread)
-	lwc1	$f7,  THREAD_FPR7_LS64(\thread)
-	lwc1	$f8,  THREAD_FPR8_LS64(\thread)
-	lwc1	$f9,  THREAD_FPR9_LS64(\thread)
-	lwc1	$f10, THREAD_FPR10_LS64(\thread)
-	lwc1	$f11, THREAD_FPR11_LS64(\thread)
-	lwc1	$f12, THREAD_FPR12_LS64(\thread)
-	lwc1	$f13, THREAD_FPR13_LS64(\thread)
-	lwc1	$f14, THREAD_FPR14_LS64(\thread)
-	lwc1	$f15, THREAD_FPR15_LS64(\thread)
-	lwc1	$f16, THREAD_FPR16_LS64(\thread)
-	lwc1	$f17, THREAD_FPR17_LS64(\thread)
-	lwc1	$f18, THREAD_FPR18_LS64(\thread)
-	lwc1	$f19, THREAD_FPR19_LS64(\thread)
-	lwc1	$f20, THREAD_FPR20_LS64(\thread)
-	lwc1	$f21, THREAD_FPR21_LS64(\thread)
-	lwc1	$f22, THREAD_FPR22_LS64(\thread)
-	lwc1	$f23, THREAD_FPR23_LS64(\thread)
-	lwc1	$f24, THREAD_FPR24_LS64(\thread)
-	lwc1	$f25, THREAD_FPR25_LS64(\thread)
-	lwc1	$f26, THREAD_FPR26_LS64(\thread)
-	lwc1	$f27, THREAD_FPR27_LS64(\thread)
-	lwc1	$f28, THREAD_FPR28_LS64(\thread)
-	lwc1	$f29, THREAD_FPR29_LS64(\thread)
-	lwc1	$f30, THREAD_FPR30_LS64(\thread)
-	lwc1	$f31, THREAD_FPR31_LS64(\thread)
+	lwc1	$f0,  THREAD_FPR0(\thread)
+	lwc1	$f1,  THREAD_FPR1(\thread)
+	lwc1	$f2,  THREAD_FPR2(\thread)
+	lwc1	$f3,  THREAD_FPR3(\thread)
+	lwc1	$f4,  THREAD_FPR4(\thread)
+	lwc1	$f5,  THREAD_FPR5(\thread)
+	lwc1	$f6,  THREAD_FPR6(\thread)
+	lwc1	$f7,  THREAD_FPR7(\thread)
+	lwc1	$f8,  THREAD_FPR8(\thread)
+	lwc1	$f9,  THREAD_FPR9(\thread)
+	lwc1	$f10, THREAD_FPR10(\thread)
+	lwc1	$f11, THREAD_FPR11(\thread)
+	lwc1	$f12, THREAD_FPR12(\thread)
+	lwc1	$f13, THREAD_FPR13(\thread)
+	lwc1	$f14, THREAD_FPR14(\thread)
+	lwc1	$f15, THREAD_FPR15(\thread)
+	lwc1	$f16, THREAD_FPR16(\thread)
+	lwc1	$f17, THREAD_FPR17(\thread)
+	lwc1	$f18, THREAD_FPR18(\thread)
+	lwc1	$f19, THREAD_FPR19(\thread)
+	lwc1	$f20, THREAD_FPR20(\thread)
+	lwc1	$f21, THREAD_FPR21(\thread)
+	lwc1	$f22, THREAD_FPR22(\thread)
+	lwc1	$f23, THREAD_FPR23(\thread)
+	lwc1	$f24, THREAD_FPR24(\thread)
+	lwc1	$f25, THREAD_FPR25(\thread)
+	lwc1	$f26, THREAD_FPR26(\thread)
+	lwc1	$f27, THREAD_FPR27(\thread)
+	lwc1	$f28, THREAD_FPR28(\thread)
+	lwc1	$f29, THREAD_FPR29(\thread)
+	lwc1	$f30, THREAD_FPR30(\thread)
+	lwc1	$f31, THREAD_FPR31(\thread)
 	ctc1	\tmp, fcr31
 	.set pop
 	.endm
diff --git a/arch/mips/include/asm/asmmacro.h b/arch/mips/include/asm/asmmacro.h
index 0cae459..6156ac8 100644
--- a/arch/mips/include/asm/asmmacro.h
+++ b/arch/mips/include/asm/asmmacro.h
@@ -60,22 +60,22 @@
 	.set	push
 	SET_HARDFLOAT
 	cfc1	\tmp, fcr31
-	sdc1	$f0,  THREAD_FPR0_LS64(\thread)
-	sdc1	$f2,  THREAD_FPR2_LS64(\thread)
-	sdc1	$f4,  THREAD_FPR4_LS64(\thread)
-	sdc1	$f6,  THREAD_FPR6_LS64(\thread)
-	sdc1	$f8,  THREAD_FPR8_LS64(\thread)
-	sdc1	$f10, THREAD_FPR10_LS64(\thread)
-	sdc1	$f12, THREAD_FPR12_LS64(\thread)
-	sdc1	$f14, THREAD_FPR14_LS64(\thread)
-	sdc1	$f16, THREAD_FPR16_LS64(\thread)
-	sdc1	$f18, THREAD_FPR18_LS64(\thread)
-	sdc1	$f20, THREAD_FPR20_LS64(\thread)
-	sdc1	$f22, THREAD_FPR22_LS64(\thread)
-	sdc1	$f24, THREAD_FPR24_LS64(\thread)
-	sdc1	$f26, THREAD_FPR26_LS64(\thread)
-	sdc1	$f28, THREAD_FPR28_LS64(\thread)
-	sdc1	$f30, THREAD_FPR30_LS64(\thread)
+	sdc1	$f0,  THREAD_FPR0(\thread)
+	sdc1	$f2,  THREAD_FPR2(\thread)
+	sdc1	$f4,  THREAD_FPR4(\thread)
+	sdc1	$f6,  THREAD_FPR6(\thread)
+	sdc1	$f8,  THREAD_FPR8(\thread)
+	sdc1	$f10, THREAD_FPR10(\thread)
+	sdc1	$f12, THREAD_FPR12(\thread)
+	sdc1	$f14, THREAD_FPR14(\thread)
+	sdc1	$f16, THREAD_FPR16(\thread)
+	sdc1	$f18, THREAD_FPR18(\thread)
+	sdc1	$f20, THREAD_FPR20(\thread)
+	sdc1	$f22, THREAD_FPR22(\thread)
+	sdc1	$f24, THREAD_FPR24(\thread)
+	sdc1	$f26, THREAD_FPR26(\thread)
+	sdc1	$f28, THREAD_FPR28(\thread)
+	sdc1	$f30, THREAD_FPR30(\thread)
 	sw	\tmp, THREAD_FCR31(\thread)
 	.set	pop
 	.endm
@@ -84,22 +84,22 @@
 	.set	push
 	.set	mips64r2
 	SET_HARDFLOAT
-	sdc1	$f1,  THREAD_FPR1_LS64(\thread)
-	sdc1	$f3,  THREAD_FPR3_LS64(\thread)
-	sdc1	$f5,  THREAD_FPR5_LS64(\thread)
-	sdc1	$f7,  THREAD_FPR7_LS64(\thread)
-	sdc1	$f9,  THREAD_FPR9_LS64(\thread)
-	sdc1	$f11, THREAD_FPR11_LS64(\thread)
-	sdc1	$f13, THREAD_FPR13_LS64(\thread)
-	sdc1	$f15, THREAD_FPR15_LS64(\thread)
-	sdc1	$f17, THREAD_FPR17_LS64(\thread)
-	sdc1	$f19, THREAD_FPR19_LS64(\thread)
-	sdc1	$f21, THREAD_FPR21_LS64(\thread)
-	sdc1	$f23, THREAD_FPR23_LS64(\thread)
-	sdc1	$f25, THREAD_FPR25_LS64(\thread)
-	sdc1	$f27, THREAD_FPR27_LS64(\thread)
-	sdc1	$f29, THREAD_FPR29_LS64(\thread)
-	sdc1	$f31, THREAD_FPR31_LS64(\thread)
+	sdc1	$f1,  THREAD_FPR1(\thread)
+	sdc1	$f3,  THREAD_FPR3(\thread)
+	sdc1	$f5,  THREAD_FPR5(\thread)
+	sdc1	$f7,  THREAD_FPR7(\thread)
+	sdc1	$f9,  THREAD_FPR9(\thread)
+	sdc1	$f11, THREAD_FPR11(\thread)
+	sdc1	$f13, THREAD_FPR13(\thread)
+	sdc1	$f15, THREAD_FPR15(\thread)
+	sdc1	$f17, THREAD_FPR17(\thread)
+	sdc1	$f19, THREAD_FPR19(\thread)
+	sdc1	$f21, THREAD_FPR21(\thread)
+	sdc1	$f23, THREAD_FPR23(\thread)
+	sdc1	$f25, THREAD_FPR25(\thread)
+	sdc1	$f27, THREAD_FPR27(\thread)
+	sdc1	$f29, THREAD_FPR29(\thread)
+	sdc1	$f31, THREAD_FPR31(\thread)
 	.set	pop
 	.endm
 
@@ -118,22 +118,22 @@
 	.set	push
 	SET_HARDFLOAT
 	lw	\tmp, THREAD_FCR31(\thread)
-	ldc1	$f0,  THREAD_FPR0_LS64(\thread)
-	ldc1	$f2,  THREAD_FPR2_LS64(\thread)
-	ldc1	$f4,  THREAD_FPR4_LS64(\thread)
-	ldc1	$f6,  THREAD_FPR6_LS64(\thread)
-	ldc1	$f8,  THREAD_FPR8_LS64(\thread)
-	ldc1	$f10, THREAD_FPR10_LS64(\thread)
-	ldc1	$f12, THREAD_FPR12_LS64(\thread)
-	ldc1	$f14, THREAD_FPR14_LS64(\thread)
-	ldc1	$f16, THREAD_FPR16_LS64(\thread)
-	ldc1	$f18, THREAD_FPR18_LS64(\thread)
-	ldc1	$f20, THREAD_FPR20_LS64(\thread)
-	ldc1	$f22, THREAD_FPR22_LS64(\thread)
-	ldc1	$f24, THREAD_FPR24_LS64(\thread)
-	ldc1	$f26, THREAD_FPR26_LS64(\thread)
-	ldc1	$f28, THREAD_FPR28_LS64(\thread)
-	ldc1	$f30, THREAD_FPR30_LS64(\thread)
+	ldc1	$f0,  THREAD_FPR0(\thread)
+	ldc1	$f2,  THREAD_FPR2(\thread)
+	ldc1	$f4,  THREAD_FPR4(\thread)
+	ldc1	$f6,  THREAD_FPR6(\thread)
+	ldc1	$f8,  THREAD_FPR8(\thread)
+	ldc1	$f10, THREAD_FPR10(\thread)
+	ldc1	$f12, THREAD_FPR12(\thread)
+	ldc1	$f14, THREAD_FPR14(\thread)
+	ldc1	$f16, THREAD_FPR16(\thread)
+	ldc1	$f18, THREAD_FPR18(\thread)
+	ldc1	$f20, THREAD_FPR20(\thread)
+	ldc1	$f22, THREAD_FPR22(\thread)
+	ldc1	$f24, THREAD_FPR24(\thread)
+	ldc1	$f26, THREAD_FPR26(\thread)
+	ldc1	$f28, THREAD_FPR28(\thread)
+	ldc1	$f30, THREAD_FPR30(\thread)
 	ctc1	\tmp, fcr31
 	.endm
 
@@ -141,22 +141,22 @@
 	.set	push
 	.set	mips64r2
 	SET_HARDFLOAT
-	ldc1	$f1,  THREAD_FPR1_LS64(\thread)
-	ldc1	$f3,  THREAD_FPR3_LS64(\thread)
-	ldc1	$f5,  THREAD_FPR5_LS64(\thread)
-	ldc1	$f7,  THREAD_FPR7_LS64(\thread)
-	ldc1	$f9,  THREAD_FPR9_LS64(\thread)
-	ldc1	$f11, THREAD_FPR11_LS64(\thread)
-	ldc1	$f13, THREAD_FPR13_LS64(\thread)
-	ldc1	$f15, THREAD_FPR15_LS64(\thread)
-	ldc1	$f17, THREAD_FPR17_LS64(\thread)
-	ldc1	$f19, THREAD_FPR19_LS64(\thread)
-	ldc1	$f21, THREAD_FPR21_LS64(\thread)
-	ldc1	$f23, THREAD_FPR23_LS64(\thread)
-	ldc1	$f25, THREAD_FPR25_LS64(\thread)
-	ldc1	$f27, THREAD_FPR27_LS64(\thread)
-	ldc1	$f29, THREAD_FPR29_LS64(\thread)
-	ldc1	$f31, THREAD_FPR31_LS64(\thread)
+	ldc1	$f1,  THREAD_FPR1(\thread)
+	ldc1	$f3,  THREAD_FPR3(\thread)
+	ldc1	$f5,  THREAD_FPR5(\thread)
+	ldc1	$f7,  THREAD_FPR7(\thread)
+	ldc1	$f9,  THREAD_FPR9(\thread)
+	ldc1	$f11, THREAD_FPR11(\thread)
+	ldc1	$f13, THREAD_FPR13(\thread)
+	ldc1	$f15, THREAD_FPR15(\thread)
+	ldc1	$f17, THREAD_FPR17(\thread)
+	ldc1	$f19, THREAD_FPR19(\thread)
+	ldc1	$f21, THREAD_FPR21(\thread)
+	ldc1	$f23, THREAD_FPR23(\thread)
+	ldc1	$f25, THREAD_FPR25(\thread)
+	ldc1	$f27, THREAD_FPR27(\thread)
+	ldc1	$f29, THREAD_FPR29(\thread)
+	ldc1	$f31, THREAD_FPR31(\thread)
 	.set	pop
 	.endm
 
@@ -211,6 +211,22 @@
 	.endm
 
 #ifdef TOOLCHAIN_SUPPORTS_MSA
+	.macro	_cfcmsa	rd, cs
+	.set	push
+	.set	mips32r2
+	.set	msa
+	cfcmsa	\rd, $\cs
+	.set	pop
+	.endm
+
+	.macro	_ctcmsa	cd, rs
+	.set	push
+	.set	mips32r2
+	.set	msa
+	ctcmsa	$\cd, \rs
+	.set	pop
+	.endm
+
 	.macro	ld_d	wd, off, base
 	.set	push
 	.set	mips32r2
@@ -227,35 +243,35 @@
 	.set	pop
 	.endm
 
-	.macro	copy_u_w	rd, ws, n
+	.macro	copy_u_w	ws, n
 	.set	push
 	.set	mips32r2
 	.set	msa
-	copy_u.w \rd, $w\ws[\n]
+	copy_u.w $1, $w\ws[\n]
 	.set	pop
 	.endm
 
-	.macro	copy_u_d	rd, ws, n
+	.macro	copy_u_d	ws, n
 	.set	push
 	.set	mips64r2
 	.set	msa
-	copy_u.d \rd, $w\ws[\n]
+	copy_u.d $1, $w\ws[\n]
 	.set	pop
 	.endm
 
-	.macro	insert_w	wd, n, rs
+	.macro	insert_w	wd, n
 	.set	push
 	.set	mips32r2
 	.set	msa
-	insert.w $w\wd[\n], \rs
+	insert.w $w\wd[\n], $1
 	.set	pop
 	.endm
 
-	.macro	insert_d	wd, n, rs
+	.macro	insert_d	wd, n
 	.set	push
 	.set	mips64r2
 	.set	msa
-	insert.d $w\wd[\n], \rs
+	insert.d $w\wd[\n], $1
 	.set	pop
 	.endm
 #else
@@ -283,7 +299,7 @@
 	/*
 	 * Temporary until all toolchains in use include MSA support.
 	 */
-	.macro	cfcmsa	rd, cs
+	.macro	_cfcmsa	rd, cs
 	.set	push
 	.set	noat
 	SET_HARDFLOAT
@@ -293,7 +309,7 @@
 	.set	pop
 	.endm
 
-	.macro	ctcmsa	cd, rs
+	.macro	_ctcmsa	cd, rs
 	.set	push
 	.set	noat
 	SET_HARDFLOAT
@@ -320,44 +336,36 @@
 	.set	pop
 	.endm
 
-	.macro	copy_u_w	rd, ws, n
+	.macro	copy_u_w	ws, n
 	.set	push
 	.set	noat
 	SET_HARDFLOAT
 	.insn
 	.word	COPY_UW_MSA_INSN | (\n << 16) | (\ws << 11)
-	/* move triggers an assembler bug... */
-	or	\rd, $1, zero
 	.set	pop
 	.endm
 
-	.macro	copy_u_d	rd, ws, n
+	.macro	copy_u_d	ws, n
 	.set	push
 	.set	noat
 	SET_HARDFLOAT
 	.insn
 	.word	COPY_UD_MSA_INSN | (\n << 16) | (\ws << 11)
-	/* move triggers an assembler bug... */
-	or	\rd, $1, zero
 	.set	pop
 	.endm
 
-	.macro	insert_w	wd, n, rs
+	.macro	insert_w	wd, n
 	.set	push
 	.set	noat
 	SET_HARDFLOAT
-	/* move triggers an assembler bug... */
-	or	$1, \rs, zero
 	.word	INSERT_W_MSA_INSN | (\n << 16) | (\wd << 6)
 	.set	pop
 	.endm
 
-	.macro	insert_d	wd, n, rs
+	.macro	insert_d	wd, n
 	.set	push
 	.set	noat
 	SET_HARDFLOAT
-	/* move triggers an assembler bug... */
-	or	$1, \rs, zero
 	.word	INSERT_D_MSA_INSN | (\n << 16) | (\wd << 6)
 	.set	pop
 	.endm
@@ -399,7 +407,7 @@
 	.set	push
 	.set	noat
 	SET_HARDFLOAT
-	cfcmsa	$1, MSA_CSR
+	_cfcmsa	$1, MSA_CSR
 	sw	$1, THREAD_MSA_CSR(\thread)
 	.set	pop
 	.endm
@@ -409,7 +417,7 @@
 	.set	noat
 	SET_HARDFLOAT
 	lw	$1, THREAD_MSA_CSR(\thread)
-	ctcmsa	MSA_CSR, $1
+	_ctcmsa	MSA_CSR, $1
 	.set	pop
 	ld_d	0, THREAD_FPR0, \thread
 	ld_d	1, THREAD_FPR1, \thread
@@ -452,9 +460,6 @@
 	insert_w \wd, 2
 	insert_w \wd, 3
 #endif
-	.if	31-\wd
-	msa_init_upper	(\wd+1)
-	.endif
 	.endm
 
 	.macro	msa_init_all_upper
@@ -463,6 +468,37 @@
 	SET_HARDFLOAT
 	not	$1, zero
 	msa_init_upper	0
+	msa_init_upper	1
+	msa_init_upper	2
+	msa_init_upper	3
+	msa_init_upper	4
+	msa_init_upper	5
+	msa_init_upper	6
+	msa_init_upper	7
+	msa_init_upper	8
+	msa_init_upper	9
+	msa_init_upper	10
+	msa_init_upper	11
+	msa_init_upper	12
+	msa_init_upper	13
+	msa_init_upper	14
+	msa_init_upper	15
+	msa_init_upper	16
+	msa_init_upper	17
+	msa_init_upper	18
+	msa_init_upper	19
+	msa_init_upper	20
+	msa_init_upper	21
+	msa_init_upper	22
+	msa_init_upper	23
+	msa_init_upper	24
+	msa_init_upper	25
+	msa_init_upper	26
+	msa_init_upper	27
+	msa_init_upper	28
+	msa_init_upper	29
+	msa_init_upper	30
+	msa_init_upper	31
 	.set	pop
 	.endm
 
diff --git a/arch/mips/include/asm/fpu.h b/arch/mips/include/asm/fpu.h
index dd083e9..b104ad9 100644
--- a/arch/mips/include/asm/fpu.h
+++ b/arch/mips/include/asm/fpu.h
@@ -48,6 +48,12 @@ enum fpu_mode {
 #define FPU_FR_MASK		0x1
 };
 
+#define __disable_fpu()							\
+do {									\
+	clear_c0_status(ST0_CU1);					\
+	disable_fpu_hazard();						\
+} while (0)
+
 static inline int __enable_fpu(enum fpu_mode mode)
 {
 	int fr;
@@ -86,7 +92,12 @@ fr_common:
 		enable_fpu_hazard();
 
 		/* check FR has the desired value */
-		return (!!(read_c0_status() & ST0_FR) == !!fr) ? 0 : SIGFPE;
+		if (!!(read_c0_status() & ST0_FR) == !!fr)
+			return 0;
+
+		/* unsupported FR value */
+		__disable_fpu();
+		return SIGFPE;
 
 	default:
 		BUG();
@@ -95,12 +106,6 @@ fr_common:
 	return SIGFPE;
 }
 
-#define __disable_fpu()							\
-do {									\
-	clear_c0_status(ST0_CU1);					\
-	disable_fpu_hazard();						\
-} while (0)
-
 #define clear_fpu_owner()	clear_thread_flag(TIF_USEDFPU)
 
 static inline int __is_fpu_owner(void)
@@ -170,6 +175,7 @@ static inline void lose_fpu(int save)
 		}
 		disable_msa();
 		clear_thread_flag(TIF_USEDMSA);
+		__disable_fpu();
 	} else if (is_fpu_owner()) {
 		if (save)
 			_save_fp(current);
diff --git a/arch/mips/include/asm/jump_label.h b/arch/mips/include/asm/jump_label.h
index fdbff44..608aa57 100644
--- a/arch/mips/include/asm/jump_label.h
+++ b/arch/mips/include/asm/jump_label.h
@@ -8,9 +8,9 @@
 #ifndef _ASM_MIPS_JUMP_LABEL_H
 #define _ASM_MIPS_JUMP_LABEL_H
 
-#include <linux/types.h>
+#ifndef __ASSEMBLY__
 
-#ifdef __KERNEL__
+#include <linux/types.h>
 
 #define JUMP_LABEL_NOP_SIZE 4
 
@@ -39,8 +39,6 @@ l_yes:
 	return true;
 }
 
-#endif /* __KERNEL__ */
-
 #ifdef CONFIG_64BIT
 typedef u64 jump_label_t;
 #else
@@ -53,4 +51,5 @@ struct jump_entry {
 	jump_label_t key;
 };
 
+#endif  /* __ASSEMBLY__ */
 #endif /* _ASM_MIPS_JUMP_LABEL_H */
diff --git a/arch/mips/include/asm/kdebug.h b/arch/mips/include/asm/kdebug.h
index 6a9af5f..cba22ab 100644
--- a/arch/mips/include/asm/kdebug.h
+++ b/arch/mips/include/asm/kdebug.h
@@ -10,7 +10,8 @@ enum die_val {
 	DIE_RI,
 	DIE_PAGE_FAULT,
 	DIE_BREAK,
-	DIE_SSTEPBP
+	DIE_SSTEPBP,
+	DIE_MSAFP
 };
 
 #endif /* _ASM_MIPS_KDEBUG_H */
diff --git a/arch/mips/include/asm/kvm_host.h b/arch/mips/include/asm/kvm_host.h
index ac4fc71..4c25823 100644
--- a/arch/mips/include/asm/kvm_host.h
+++ b/arch/mips/include/asm/kvm_host.h
@@ -21,10 +21,10 @@
 
 /* MIPS KVM register ids */
 #define MIPS_CP0_32(_R, _S)					\
-	(KVM_REG_MIPS | KVM_REG_SIZE_U32 | 0x10000 | (8 * (_R) + (_S)))
+	(KVM_REG_MIPS_CP0 | KVM_REG_SIZE_U32 | (8 * (_R) + (_S)))
 
 #define MIPS_CP0_64(_R, _S)					\
-	(KVM_REG_MIPS | KVM_REG_SIZE_U64 | 0x10000 | (8 * (_R) + (_S)))
+	(KVM_REG_MIPS_CP0 | KVM_REG_SIZE_U64 | (8 * (_R) + (_S)))
 
 #define KVM_REG_MIPS_CP0_INDEX		MIPS_CP0_32(0, 0)
 #define KVM_REG_MIPS_CP0_ENTRYLO0	MIPS_CP0_64(2, 0)
@@ -42,11 +42,14 @@
 #define KVM_REG_MIPS_CP0_STATUS		MIPS_CP0_32(12, 0)
 #define KVM_REG_MIPS_CP0_CAUSE		MIPS_CP0_32(13, 0)
 #define KVM_REG_MIPS_CP0_EPC		MIPS_CP0_64(14, 0)
+#define KVM_REG_MIPS_CP0_PRID		MIPS_CP0_32(15, 0)
 #define KVM_REG_MIPS_CP0_EBASE		MIPS_CP0_64(15, 1)
 #define KVM_REG_MIPS_CP0_CONFIG		MIPS_CP0_32(16, 0)
 #define KVM_REG_MIPS_CP0_CONFIG1	MIPS_CP0_32(16, 1)
 #define KVM_REG_MIPS_CP0_CONFIG2	MIPS_CP0_32(16, 2)
 #define KVM_REG_MIPS_CP0_CONFIG3	MIPS_CP0_32(16, 3)
+#define KVM_REG_MIPS_CP0_CONFIG4	MIPS_CP0_32(16, 4)
+#define KVM_REG_MIPS_CP0_CONFIG5	MIPS_CP0_32(16, 5)
 #define KVM_REG_MIPS_CP0_CONFIG7	MIPS_CP0_32(16, 7)
 #define KVM_REG_MIPS_CP0_XCONTEXT	MIPS_CP0_64(20, 0)
 #define KVM_REG_MIPS_CP0_ERROREPC	MIPS_CP0_64(30, 0)
@@ -119,6 +122,10 @@ struct kvm_vcpu_stat {
 	u32 syscall_exits;
 	u32 resvd_inst_exits;
 	u32 break_inst_exits;
+	u32 trap_inst_exits;
+	u32 msa_fpe_exits;
+	u32 fpe_exits;
+	u32 msa_disabled_exits;
 	u32 flush_dcache_exits;
 	u32 halt_successful_poll;
 	u32 halt_wakeup;
@@ -138,6 +145,10 @@ enum kvm_mips_exit_types {
 	SYSCALL_EXITS,
 	RESVD_INST_EXITS,
 	BREAK_INST_EXITS,
+	TRAP_INST_EXITS,
+	MSA_FPE_EXITS,
+	FPE_EXITS,
+	MSA_DISABLED_EXITS,
 	FLUSH_DCACHE_EXITS,
 	MAX_KVM_MIPS_EXIT_TYPES
 };
@@ -206,6 +217,8 @@ struct mips_coproc {
 #define MIPS_CP0_CONFIG1_SEL	1
 #define MIPS_CP0_CONFIG2_SEL	2
 #define MIPS_CP0_CONFIG3_SEL	3
+#define MIPS_CP0_CONFIG4_SEL	4
+#define MIPS_CP0_CONFIG5_SEL	5
 
 /* Config0 register bits */
 #define CP0C0_M			31
@@ -262,31 +275,6 @@ struct mips_coproc {
 #define CP0C3_SM		1
 #define CP0C3_TL		0
 
-/* Have config1, Cacheable, noncoherent, write-back, write allocate*/
-#define MIPS_CONFIG0						\
-  ((1 << CP0C0_M) | (0x3 << CP0C0_K0))
-
-/* Have config2, no coprocessor2 attached, no MDMX support attached,
-   no performance counters, watch registers present,
-   no code compression, EJTAG present, no FPU, no watch registers */
-#define MIPS_CONFIG1						\
-((1 << CP0C1_M) |						\
- (0 << CP0C1_C2) | (0 << CP0C1_MD) | (0 << CP0C1_PC) |		\
- (0 << CP0C1_WR) | (0 << CP0C1_CA) | (1 << CP0C1_EP) |		\
- (0 << CP0C1_FP))
-
-/* Have config3, no tertiary/secondary caches implemented */
-#define MIPS_CONFIG2						\
-((1 << CP0C2_M))
-
-/* No config4, no DSP ASE, no large physaddr (PABITS),
-   no external interrupt controller, no vectored interrupts,
-   no 1kb pages, no SmartMIPS ASE, no trace logic */
-#define MIPS_CONFIG3						\
-((0 << CP0C3_M) | (0 << CP0C3_DSPP) | (0 << CP0C3_LPA) |	\
- (0 << CP0C3_VEIC) | (0 << CP0C3_VInt) | (0 << CP0C3_SP) |	\
- (0 << CP0C3_SM) | (0 << CP0C3_TL))
-
 /* MMU types, the first four entries have the same layout as the
    CP0C0_MT field.  */
 enum mips_mmu_types {
@@ -321,7 +309,9 @@ enum mips_mmu_types {
  */
 #define T_TRAP			13	/* Trap instruction */
 #define T_VCEI			14	/* Virtual coherency exception */
+#define T_MSAFPE		14	/* MSA floating point exception */
 #define T_FPE			15	/* Floating point exception */
+#define T_MSADIS		21	/* MSA disabled exception */
 #define T_WATCH			23	/* Watch address reference */
 #define T_VCED			31	/* Virtual coherency data */
 
@@ -374,6 +364,9 @@ struct kvm_mips_tlb {
 	long tlb_lo1;
 };
 
+#define KVM_MIPS_FPU_FPU	0x1
+#define KVM_MIPS_FPU_MSA	0x2
+
 #define KVM_MIPS_GUEST_TLB_SIZE	64
 struct kvm_vcpu_arch {
 	void *host_ebase, *guest_ebase;
@@ -395,6 +388,8 @@ struct kvm_vcpu_arch {
 
 	/* FPU State */
 	struct mips_fpu_struct fpu;
+	/* Which FPU state is loaded (KVM_MIPS_FPU_*) */
+	unsigned int fpu_inuse;
 
 	/* COP0 State */
 	struct mips_coproc *cop0;
@@ -441,6 +436,9 @@ struct kvm_vcpu_arch {
 
 	/* WAIT executed */
 	int wait;
+
+	u8 fpu_enabled;
+	u8 msa_enabled;
 };
 
 
@@ -482,11 +480,15 @@ struct kvm_vcpu_arch {
 #define kvm_read_c0_guest_config1(cop0)		(cop0->reg[MIPS_CP0_CONFIG][1])
 #define kvm_read_c0_guest_config2(cop0)		(cop0->reg[MIPS_CP0_CONFIG][2])
 #define kvm_read_c0_guest_config3(cop0)		(cop0->reg[MIPS_CP0_CONFIG][3])
+#define kvm_read_c0_guest_config4(cop0)		(cop0->reg[MIPS_CP0_CONFIG][4])
+#define kvm_read_c0_guest_config5(cop0)		(cop0->reg[MIPS_CP0_CONFIG][5])
 #define kvm_read_c0_guest_config7(cop0)		(cop0->reg[MIPS_CP0_CONFIG][7])
 #define kvm_write_c0_guest_config(cop0, val)	(cop0->reg[MIPS_CP0_CONFIG][0] = (val))
 #define kvm_write_c0_guest_config1(cop0, val)	(cop0->reg[MIPS_CP0_CONFIG][1] = (val))
 #define kvm_write_c0_guest_config2(cop0, val)	(cop0->reg[MIPS_CP0_CONFIG][2] = (val))
 #define kvm_write_c0_guest_config3(cop0, val)	(cop0->reg[MIPS_CP0_CONFIG][3] = (val))
+#define kvm_write_c0_guest_config4(cop0, val)	(cop0->reg[MIPS_CP0_CONFIG][4] = (val))
+#define kvm_write_c0_guest_config5(cop0, val)	(cop0->reg[MIPS_CP0_CONFIG][5] = (val))
 #define kvm_write_c0_guest_config7(cop0, val)	(cop0->reg[MIPS_CP0_CONFIG][7] = (val))
 #define kvm_read_c0_guest_errorepc(cop0)	(cop0->reg[MIPS_CP0_ERROR_PC][0])
 #define kvm_write_c0_guest_errorepc(cop0, val)	(cop0->reg[MIPS_CP0_ERROR_PC][0] = (val))
@@ -567,6 +569,31 @@ static inline void _kvm_atomic_change_c0_guest_reg(unsigned long *reg,
 	kvm_set_c0_guest_ebase(cop0, ((val) & (change)));		\
 }
 
+/* Helpers */
+
+static inline bool kvm_mips_guest_can_have_fpu(struct kvm_vcpu_arch *vcpu)
+{
+	return (!__builtin_constant_p(cpu_has_fpu) || cpu_has_fpu) &&
+		vcpu->fpu_enabled;
+}
+
+static inline bool kvm_mips_guest_has_fpu(struct kvm_vcpu_arch *vcpu)
+{
+	return kvm_mips_guest_can_have_fpu(vcpu) &&
+		kvm_read_c0_guest_config1(vcpu->cop0) & MIPS_CONF1_FP;
+}
+
+static inline bool kvm_mips_guest_can_have_msa(struct kvm_vcpu_arch *vcpu)
+{
+	return (!__builtin_constant_p(cpu_has_msa) || cpu_has_msa) &&
+		vcpu->msa_enabled;
+}
+
+static inline bool kvm_mips_guest_has_msa(struct kvm_vcpu_arch *vcpu)
+{
+	return kvm_mips_guest_can_have_msa(vcpu) &&
+		kvm_read_c0_guest_config3(vcpu->cop0) & MIPS_CONF3_MSA;
+}
 
 struct kvm_mips_callbacks {
 	int (*handle_cop_unusable)(struct kvm_vcpu *vcpu);
@@ -578,6 +605,10 @@ struct kvm_mips_callbacks {
 	int (*handle_syscall)(struct kvm_vcpu *vcpu);
 	int (*handle_res_inst)(struct kvm_vcpu *vcpu);
 	int (*handle_break)(struct kvm_vcpu *vcpu);
+	int (*handle_trap)(struct kvm_vcpu *vcpu);
+	int (*handle_msa_fpe)(struct kvm_vcpu *vcpu);
+	int (*handle_fpe)(struct kvm_vcpu *vcpu);
+	int (*handle_msa_disabled)(struct kvm_vcpu *vcpu);
 	int (*vm_init)(struct kvm *kvm);
 	int (*vcpu_init)(struct kvm_vcpu *vcpu);
 	int (*vcpu_setup)(struct kvm_vcpu *vcpu);
@@ -596,6 +627,8 @@ struct kvm_mips_callbacks {
 			   const struct kvm_one_reg *reg, s64 *v);
 	int (*set_one_reg)(struct kvm_vcpu *vcpu,
 			   const struct kvm_one_reg *reg, s64 v);
+	int (*vcpu_get_regs)(struct kvm_vcpu *vcpu);
+	int (*vcpu_set_regs)(struct kvm_vcpu *vcpu);
 };
 extern struct kvm_mips_callbacks *kvm_mips_callbacks;
 int kvm_mips_emulation_init(struct kvm_mips_callbacks **install_callbacks);
@@ -606,6 +639,19 @@ int kvm_arch_vcpu_dump_regs(struct kvm_vcpu *vcpu);
 /* Trampoline ASM routine to start running in "Guest" context */
 extern int __kvm_mips_vcpu_run(struct kvm_run *run, struct kvm_vcpu *vcpu);
 
+/* FPU/MSA context management */
+void __kvm_save_fpu(struct kvm_vcpu_arch *vcpu);
+void __kvm_restore_fpu(struct kvm_vcpu_arch *vcpu);
+void __kvm_restore_fcsr(struct kvm_vcpu_arch *vcpu);
+void __kvm_save_msa(struct kvm_vcpu_arch *vcpu);
+void __kvm_restore_msa(struct kvm_vcpu_arch *vcpu);
+void __kvm_restore_msa_upper(struct kvm_vcpu_arch *vcpu);
+void __kvm_restore_msacsr(struct kvm_vcpu_arch *vcpu);
+void kvm_own_fpu(struct kvm_vcpu *vcpu);
+void kvm_own_msa(struct kvm_vcpu *vcpu);
+void kvm_drop_fpu(struct kvm_vcpu *vcpu);
+void kvm_lose_fpu(struct kvm_vcpu *vcpu);
+
 /* TLB handling */
 uint32_t kvm_get_kernel_asid(struct kvm_vcpu *vcpu);
 
@@ -711,6 +757,26 @@ extern enum emulation_result kvm_mips_emulate_bp_exc(unsigned long cause,
 						     struct kvm_run *run,
 						     struct kvm_vcpu *vcpu);
 
+extern enum emulation_result kvm_mips_emulate_trap_exc(unsigned long cause,
+						       uint32_t *opc,
+						       struct kvm_run *run,
+						       struct kvm_vcpu *vcpu);
+
+extern enum emulation_result kvm_mips_emulate_msafpe_exc(unsigned long cause,
+							 uint32_t *opc,
+							 struct kvm_run *run,
+							 struct kvm_vcpu *vcpu);
+
+extern enum emulation_result kvm_mips_emulate_fpe_exc(unsigned long cause,
+						      uint32_t *opc,
+						      struct kvm_run *run,
+						      struct kvm_vcpu *vcpu);
+
+extern enum emulation_result kvm_mips_emulate_msadis_exc(unsigned long cause,
+							 uint32_t *opc,
+							 struct kvm_run *run,
+							 struct kvm_vcpu *vcpu);
+
 extern enum emulation_result kvm_mips_complete_mmio_load(struct kvm_vcpu *vcpu,
 							 struct kvm_run *run);
 
@@ -749,6 +815,11 @@ enum emulation_result kvm_mips_emulate_load(uint32_t inst,
 					    struct kvm_run *run,
 					    struct kvm_vcpu *vcpu);
 
+unsigned int kvm_mips_config1_wrmask(struct kvm_vcpu *vcpu);
+unsigned int kvm_mips_config3_wrmask(struct kvm_vcpu *vcpu);
+unsigned int kvm_mips_config4_wrmask(struct kvm_vcpu *vcpu);
+unsigned int kvm_mips_config5_wrmask(struct kvm_vcpu *vcpu);
+
 /* Dynamic binary translation */
 extern int kvm_mips_trans_cache_index(uint32_t inst, uint32_t *opc,
 				      struct kvm_vcpu *vcpu);
diff --git a/arch/mips/include/asm/processor.h b/arch/mips/include/asm/processor.h
index b5dcbee..9b3b48e 100644
--- a/arch/mips/include/asm/processor.h
+++ b/arch/mips/include/asm/processor.h
@@ -105,7 +105,7 @@ union fpureg {
 #ifdef CONFIG_CPU_LITTLE_ENDIAN
 # define FPR_IDX(width, idx)	(idx)
 #else
-# define FPR_IDX(width, idx)	((FPU_REG_WIDTH / (width)) - 1 - (idx))
+# define FPR_IDX(width, idx)	((idx) ^ ((64 / (width)) - 1))
 #endif
 
 #define BUILD_FPR_ACCESS(width) \
diff --git a/arch/mips/include/uapi/asm/kvm.h b/arch/mips/include/uapi/asm/kvm.h
index 2c04b6d..6985eb5 100644
--- a/arch/mips/include/uapi/asm/kvm.h
+++ b/arch/mips/include/uapi/asm/kvm.h
@@ -36,77 +36,85 @@ struct kvm_regs {
 
 /*
  * for KVM_GET_FPU and KVM_SET_FPU
- *
- * If Status[FR] is zero (32-bit FPU), the upper 32-bits of the FPRs
- * are zero filled.
  */
 struct kvm_fpu {
-	__u64 fpr[32];
-	__u32 fir;
-	__u32 fccr;
-	__u32 fexr;
-	__u32 fenr;
-	__u32 fcsr;
-	__u32 pad;
 };
 
 
 /*
- * For MIPS, we use KVM_SET_ONE_REG and KVM_GET_ONE_REG to access CP0
+ * For MIPS, we use KVM_SET_ONE_REG and KVM_GET_ONE_REG to access various
  * registers.  The id field is broken down as follows:
  *
- *  bits[2..0]   - Register 'sel' index.
- *  bits[7..3]   - Register 'rd'  index.
- *  bits[15..8]  - Must be zero.
- *  bits[31..16] - 1 -> CP0 registers.
- *  bits[51..32] - Must be zero.
  *  bits[63..52] - As per linux/kvm.h
+ *  bits[51..32] - Must be zero.
+ *  bits[31..16] - Register set.
+ *
+ * Register set = 0: GP registers from kvm_regs (see definitions below).
+ *
+ * Register set = 1: CP0 registers.
+ *  bits[15..8]  - Must be zero.
+ *  bits[7..3]   - Register 'rd'  index.
+ *  bits[2..0]   - Register 'sel' index.
+ *
+ * Register set = 2: KVM specific registers (see definitions below).
+ *
+ * Register set = 3: FPU / MSA registers (see definitions below).
  *
  * Other sets registers may be added in the future.  Each set would
  * have its own identifier in bits[31..16].
- *
- * The registers defined in struct kvm_regs are also accessible, the
- * id values for these are below.
  */
 
-#define KVM_REG_MIPS_R0 (KVM_REG_MIPS | KVM_REG_SIZE_U64 | 0)
-#define KVM_REG_MIPS_R1 (KVM_REG_MIPS | KVM_REG_SIZE_U64 | 1)
-#define KVM_REG_MIPS_R2 (KVM_REG_MIPS | KVM_REG_SIZE_U64 | 2)
-#define KVM_REG_MIPS_R3 (KVM_REG_MIPS | KVM_REG_SIZE_U64 | 3)
-#define KVM_REG_MIPS_R4 (KVM_REG_MIPS | KVM_REG_SIZE_U64 | 4)
-#define KVM_REG_MIPS_R5 (KVM_REG_MIPS | KVM_REG_SIZE_U64 | 5)
-#define KVM_REG_MIPS_R6 (KVM_REG_MIPS | KVM_REG_SIZE_U64 | 6)
-#define KVM_REG_MIPS_R7 (KVM_REG_MIPS | KVM_REG_SIZE_U64 | 7)
-#define KVM_REG_MIPS_R8 (KVM_REG_MIPS | KVM_REG_SIZE_U64 | 8)
-#define KVM_REG_MIPS_R9 (KVM_REG_MIPS | KVM_REG_SIZE_U64 | 9)
-#define KVM_REG_MIPS_R10 (KVM_REG_MIPS | KVM_REG_SIZE_U64 | 10)
-#define KVM_REG_MIPS_R11 (KVM_REG_MIPS | KVM_REG_SIZE_U64 | 11)
-#define KVM_REG_MIPS_R12 (KVM_REG_MIPS | KVM_REG_SIZE_U64 | 12)
-#define KVM_REG_MIPS_R13 (KVM_REG_MIPS | KVM_REG_SIZE_U64 | 13)
-#define KVM_REG_MIPS_R14 (KVM_REG_MIPS | KVM_REG_SIZE_U64 | 14)
-#define KVM_REG_MIPS_R15 (KVM_REG_MIPS | KVM_REG_SIZE_U64 | 15)
-#define KVM_REG_MIPS_R16 (KVM_REG_MIPS | KVM_REG_SIZE_U64 | 16)
-#define KVM_REG_MIPS_R17 (KVM_REG_MIPS | KVM_REG_SIZE_U64 | 17)
-#define KVM_REG_MIPS_R18 (KVM_REG_MIPS | KVM_REG_SIZE_U64 | 18)
-#define KVM_REG_MIPS_R19 (KVM_REG_MIPS | KVM_REG_SIZE_U64 | 19)
-#define KVM_REG_MIPS_R20 (KVM_REG_MIPS | KVM_REG_SIZE_U64 | 20)
-#define KVM_REG_MIPS_R21 (KVM_REG_MIPS | KVM_REG_SIZE_U64 | 21)
-#define KVM_REG_MIPS_R22 (KVM_REG_MIPS | KVM_REG_SIZE_U64 | 22)
-#define KVM_REG_MIPS_R23 (KVM_REG_MIPS | KVM_REG_SIZE_U64 | 23)
-#define KVM_REG_MIPS_R24 (KVM_REG_MIPS | KVM_REG_SIZE_U64 | 24)
-#define KVM_REG_MIPS_R25 (KVM_REG_MIPS | KVM_REG_SIZE_U64 | 25)
-#define KVM_REG_MIPS_R26 (KVM_REG_MIPS | KVM_REG_SIZE_U64 | 26)
-#define KVM_REG_MIPS_R27 (KVM_REG_MIPS | KVM_REG_SIZE_U64 | 27)
-#define KVM_REG_MIPS_R28 (KVM_REG_MIPS | KVM_REG_SIZE_U64 | 28)
-#define KVM_REG_MIPS_R29 (KVM_REG_MIPS | KVM_REG_SIZE_U64 | 29)
-#define KVM_REG_MIPS_R30 (KVM_REG_MIPS | KVM_REG_SIZE_U64 | 30)
-#define KVM_REG_MIPS_R31 (KVM_REG_MIPS | KVM_REG_SIZE_U64 | 31)
-
-#define KVM_REG_MIPS_HI (KVM_REG_MIPS | KVM_REG_SIZE_U64 | 32)
-#define KVM_REG_MIPS_LO (KVM_REG_MIPS | KVM_REG_SIZE_U64 | 33)
-#define KVM_REG_MIPS_PC (KVM_REG_MIPS | KVM_REG_SIZE_U64 | 34)
-
-/* KVM specific control registers */
+#define KVM_REG_MIPS_GP		(KVM_REG_MIPS | 0x0000000000000000ULL)
+#define KVM_REG_MIPS_CP0	(KVM_REG_MIPS | 0x0000000000010000ULL)
+#define KVM_REG_MIPS_KVM	(KVM_REG_MIPS | 0x0000000000020000ULL)
+#define KVM_REG_MIPS_FPU	(KVM_REG_MIPS | 0x0000000000030000ULL)
+
+
+/*
+ * KVM_REG_MIPS_GP - General purpose registers from kvm_regs.
+ */
+
+#define KVM_REG_MIPS_R0		(KVM_REG_MIPS_GP | KVM_REG_SIZE_U64 |  0)
+#define KVM_REG_MIPS_R1		(KVM_REG_MIPS_GP | KVM_REG_SIZE_U64 |  1)
+#define KVM_REG_MIPS_R2		(KVM_REG_MIPS_GP | KVM_REG_SIZE_U64 |  2)
+#define KVM_REG_MIPS_R3		(KVM_REG_MIPS_GP | KVM_REG_SIZE_U64 |  3)
+#define KVM_REG_MIPS_R4		(KVM_REG_MIPS_GP | KVM_REG_SIZE_U64 |  4)
+#define KVM_REG_MIPS_R5		(KVM_REG_MIPS_GP | KVM_REG_SIZE_U64 |  5)
+#define KVM_REG_MIPS_R6		(KVM_REG_MIPS_GP | KVM_REG_SIZE_U64 |  6)
+#define KVM_REG_MIPS_R7		(KVM_REG_MIPS_GP | KVM_REG_SIZE_U64 |  7)
+#define KVM_REG_MIPS_R8		(KVM_REG_MIPS_GP | KVM_REG_SIZE_U64 |  8)
+#define KVM_REG_MIPS_R9		(KVM_REG_MIPS_GP | KVM_REG_SIZE_U64 |  9)
+#define KVM_REG_MIPS_R10	(KVM_REG_MIPS_GP | KVM_REG_SIZE_U64 | 10)
+#define KVM_REG_MIPS_R11	(KVM_REG_MIPS_GP | KVM_REG_SIZE_U64 | 11)
+#define KVM_REG_MIPS_R12	(KVM_REG_MIPS_GP | KVM_REG_SIZE_U64 | 12)
+#define KVM_REG_MIPS_R13	(KVM_REG_MIPS_GP | KVM_REG_SIZE_U64 | 13)
+#define KVM_REG_MIPS_R14	(KVM_REG_MIPS_GP | KVM_REG_SIZE_U64 | 14)
+#define KVM_REG_MIPS_R15	(KVM_REG_MIPS_GP | KVM_REG_SIZE_U64 | 15)
+#define KVM_REG_MIPS_R16	(KVM_REG_MIPS_GP | KVM_REG_SIZE_U64 | 16)
+#define KVM_REG_MIPS_R17	(KVM_REG_MIPS_GP | KVM_REG_SIZE_U64 | 17)
+#define KVM_REG_MIPS_R18	(KVM_REG_MIPS_GP | KVM_REG_SIZE_U64 | 18)
+#define KVM_REG_MIPS_R19	(KVM_REG_MIPS_GP | KVM_REG_SIZE_U64 | 19)
+#define KVM_REG_MIPS_R20	(KVM_REG_MIPS_GP | KVM_REG_SIZE_U64 | 20)
+#define KVM_REG_MIPS_R21	(KVM_REG_MIPS_GP | KVM_REG_SIZE_U64 | 21)
+#define KVM_REG_MIPS_R22	(KVM_REG_MIPS_GP | KVM_REG_SIZE_U64 | 22)
+#define KVM_REG_MIPS_R23	(KVM_REG_MIPS_GP | KVM_REG_SIZE_U64 | 23)
+#define KVM_REG_MIPS_R24	(KVM_REG_MIPS_GP | KVM_REG_SIZE_U64 | 24)
+#define KVM_REG_MIPS_R25	(KVM_REG_MIPS_GP | KVM_REG_SIZE_U64 | 25)
+#define KVM_REG_MIPS_R26	(KVM_REG_MIPS_GP | KVM_REG_SIZE_U64 | 26)
+#define KVM_REG_MIPS_R27	(KVM_REG_MIPS_GP | KVM_REG_SIZE_U64 | 27)
+#define KVM_REG_MIPS_R28	(KVM_REG_MIPS_GP | KVM_REG_SIZE_U64 | 28)
+#define KVM_REG_MIPS_R29	(KVM_REG_MIPS_GP | KVM_REG_SIZE_U64 | 29)
+#define KVM_REG_MIPS_R30	(KVM_REG_MIPS_GP | KVM_REG_SIZE_U64 | 30)
+#define KVM_REG_MIPS_R31	(KVM_REG_MIPS_GP | KVM_REG_SIZE_U64 | 31)
+
+#define KVM_REG_MIPS_HI		(KVM_REG_MIPS_GP | KVM_REG_SIZE_U64 | 32)
+#define KVM_REG_MIPS_LO		(KVM_REG_MIPS_GP | KVM_REG_SIZE_U64 | 33)
+#define KVM_REG_MIPS_PC		(KVM_REG_MIPS_GP | KVM_REG_SIZE_U64 | 34)
+
+
+/*
+ * KVM_REG_MIPS_KVM - KVM specific control registers.
+ */
 
 /*
  * CP0_Count control
@@ -118,8 +126,7 @@ struct kvm_fpu {
  *        safely without losing time or guest timer interrupts.
  * Other: Reserved, do not change.
  */
-#define KVM_REG_MIPS_COUNT_CTL		(KVM_REG_MIPS | KVM_REG_SIZE_U64 | \
-					 0x20000 | 0)
+#define KVM_REG_MIPS_COUNT_CTL	    (KVM_REG_MIPS_KVM | KVM_REG_SIZE_U64 | 0)
 #define KVM_REG_MIPS_COUNT_CTL_DC	0x00000001
 
 /*
@@ -131,15 +138,46 @@ struct kvm_fpu {
  * emulated.
  * Modifications to times in the future are rejected.
  */
-#define KVM_REG_MIPS_COUNT_RESUME	(KVM_REG_MIPS | KVM_REG_SIZE_U64 | \
-					 0x20000 | 1)
+#define KVM_REG_MIPS_COUNT_RESUME   (KVM_REG_MIPS_KVM | KVM_REG_SIZE_U64 | 1)
 /*
  * CP0_Count rate in Hz
  * Specifies the rate of the CP0_Count timer in Hz. Modifications occur without
  * discontinuities in CP0_Count.
  */
-#define KVM_REG_MIPS_COUNT_HZ		(KVM_REG_MIPS | KVM_REG_SIZE_U64 | \
-					 0x20000 | 2)
+#define KVM_REG_MIPS_COUNT_HZ	    (KVM_REG_MIPS_KVM | KVM_REG_SIZE_U64 | 2)
+
+
+/*
+ * KVM_REG_MIPS_FPU - Floating Point and MIPS SIMD Architecture (MSA) registers.
+ *
+ *  bits[15..8]  - Register subset (see definitions below).
+ *  bits[7..5]   - Must be zero.
+ *  bits[4..0]   - Register number within register subset.
+ */
+
+#define KVM_REG_MIPS_FPR	(KVM_REG_MIPS_FPU | 0x0000000000000000ULL)
+#define KVM_REG_MIPS_FCR	(KVM_REG_MIPS_FPU | 0x0000000000000100ULL)
+#define KVM_REG_MIPS_MSACR	(KVM_REG_MIPS_FPU | 0x0000000000000200ULL)
+
+/*
+ * KVM_REG_MIPS_FPR - Floating point / Vector registers.
+ */
+#define KVM_REG_MIPS_FPR_32(n)	(KVM_REG_MIPS_FPR | KVM_REG_SIZE_U32  | (n))
+#define KVM_REG_MIPS_FPR_64(n)	(KVM_REG_MIPS_FPR | KVM_REG_SIZE_U64  | (n))
+#define KVM_REG_MIPS_VEC_128(n)	(KVM_REG_MIPS_FPR | KVM_REG_SIZE_U128 | (n))
+
+/*
+ * KVM_REG_MIPS_FCR - Floating point control registers.
+ */
+#define KVM_REG_MIPS_FCR_IR	(KVM_REG_MIPS_FCR | KVM_REG_SIZE_U32 |  0)
+#define KVM_REG_MIPS_FCR_CSR	(KVM_REG_MIPS_FCR | KVM_REG_SIZE_U32 | 31)
+
+/*
+ * KVM_REG_MIPS_MSACR - MIPS SIMD Architecture (MSA) control registers.
+ */
+#define KVM_REG_MIPS_MSA_IR	 (KVM_REG_MIPS_MSACR | KVM_REG_SIZE_U32 |  0)
+#define KVM_REG_MIPS_MSA_CSR	 (KVM_REG_MIPS_MSACR | KVM_REG_SIZE_U32 |  1)
+
 
 /*
  * KVM MIPS specific structures and definitions
diff --git a/arch/mips/kernel/asm-offsets.c b/arch/mips/kernel/asm-offsets.c
index 750d67a..e59fd7c 100644
--- a/arch/mips/kernel/asm-offsets.c
+++ b/arch/mips/kernel/asm-offsets.c
@@ -167,72 +167,6 @@ void output_thread_fpu_defines(void)
 	OFFSET(THREAD_FPR30, task_struct, thread.fpu.fpr[30]);
 	OFFSET(THREAD_FPR31, task_struct, thread.fpu.fpr[31]);
 
-	/* the least significant 64 bits of each FP register */
-	OFFSET(THREAD_FPR0_LS64, task_struct,
-	       thread.fpu.fpr[0].val64[FPR_IDX(64, 0)]);
-	OFFSET(THREAD_FPR1_LS64, task_struct,
-	       thread.fpu.fpr[1].val64[FPR_IDX(64, 0)]);
-	OFFSET(THREAD_FPR2_LS64, task_struct,
-	       thread.fpu.fpr[2].val64[FPR_IDX(64, 0)]);
-	OFFSET(THREAD_FPR3_LS64, task_struct,
-	       thread.fpu.fpr[3].val64[FPR_IDX(64, 0)]);
-	OFFSET(THREAD_FPR4_LS64, task_struct,
-	       thread.fpu.fpr[4].val64[FPR_IDX(64, 0)]);
-	OFFSET(THREAD_FPR5_LS64, task_struct,
-	       thread.fpu.fpr[5].val64[FPR_IDX(64, 0)]);
-	OFFSET(THREAD_FPR6_LS64, task_struct,
-	       thread.fpu.fpr[6].val64[FPR_IDX(64, 0)]);
-	OFFSET(THREAD_FPR7_LS64, task_struct,
-	       thread.fpu.fpr[7].val64[FPR_IDX(64, 0)]);
-	OFFSET(THREAD_FPR8_LS64, task_struct,
-	       thread.fpu.fpr[8].val64[FPR_IDX(64, 0)]);
-	OFFSET(THREAD_FPR9_LS64, task_struct,
-	       thread.fpu.fpr[9].val64[FPR_IDX(64, 0)]);
-	OFFSET(THREAD_FPR10_LS64, task_struct,
-	       thread.fpu.fpr[10].val64[FPR_IDX(64, 0)]);
-	OFFSET(THREAD_FPR11_LS64, task_struct,
-	       thread.fpu.fpr[11].val64[FPR_IDX(64, 0)]);
-	OFFSET(THREAD_FPR12_LS64, task_struct,
-	       thread.fpu.fpr[12].val64[FPR_IDX(64, 0)]);
-	OFFSET(THREAD_FPR13_LS64, task_struct,
-	       thread.fpu.fpr[13].val64[FPR_IDX(64, 0)]);
-	OFFSET(THREAD_FPR14_LS64, task_struct,
-	       thread.fpu.fpr[14].val64[FPR_IDX(64, 0)]);
-	OFFSET(THREAD_FPR15_LS64, task_struct,
-	       thread.fpu.fpr[15].val64[FPR_IDX(64, 0)]);
-	OFFSET(THREAD_FPR16_LS64, task_struct,
-	       thread.fpu.fpr[16].val64[FPR_IDX(64, 0)]);
-	OFFSET(THREAD_FPR17_LS64, task_struct,
-	       thread.fpu.fpr[17].val64[FPR_IDX(64, 0)]);
-	OFFSET(THREAD_FPR18_LS64, task_struct,
-	       thread.fpu.fpr[18].val64[FPR_IDX(64, 0)]);
-	OFFSET(THREAD_FPR19_LS64, task_struct,
-	       thread.fpu.fpr[19].val64[FPR_IDX(64, 0)]);
-	OFFSET(THREAD_FPR20_LS64, task_struct,
-	       thread.fpu.fpr[20].val64[FPR_IDX(64, 0)]);
-	OFFSET(THREAD_FPR21_LS64, task_struct,
-	       thread.fpu.fpr[21].val64[FPR_IDX(64, 0)]);
-	OFFSET(THREAD_FPR22_LS64, task_struct,
-	       thread.fpu.fpr[22].val64[FPR_IDX(64, 0)]);
-	OFFSET(THREAD_FPR23_LS64, task_struct,
-	       thread.fpu.fpr[23].val64[FPR_IDX(64, 0)]);
-	OFFSET(THREAD_FPR24_LS64, task_struct,
-	       thread.fpu.fpr[24].val64[FPR_IDX(64, 0)]);
-	OFFSET(THREAD_FPR25_LS64, task_struct,
-	       thread.fpu.fpr[25].val64[FPR_IDX(64, 0)]);
-	OFFSET(THREAD_FPR26_LS64, task_struct,
-	       thread.fpu.fpr[26].val64[FPR_IDX(64, 0)]);
-	OFFSET(THREAD_FPR27_LS64, task_struct,
-	       thread.fpu.fpr[27].val64[FPR_IDX(64, 0)]);
-	OFFSET(THREAD_FPR28_LS64, task_struct,
-	       thread.fpu.fpr[28].val64[FPR_IDX(64, 0)]);
-	OFFSET(THREAD_FPR29_LS64, task_struct,
-	       thread.fpu.fpr[29].val64[FPR_IDX(64, 0)]);
-	OFFSET(THREAD_FPR30_LS64, task_struct,
-	       thread.fpu.fpr[30].val64[FPR_IDX(64, 0)]);
-	OFFSET(THREAD_FPR31_LS64, task_struct,
-	       thread.fpu.fpr[31].val64[FPR_IDX(64, 0)]);
-
 	OFFSET(THREAD_FCR31, task_struct, thread.fpu.fcr31);
 	OFFSET(THREAD_MSA_CSR, task_struct, thread.fpu.msacsr);
 	BLANK();
@@ -470,6 +404,45 @@ void output_kvm_defines(void)
 	OFFSET(VCPU_LO, kvm_vcpu_arch, lo);
 	OFFSET(VCPU_HI, kvm_vcpu_arch, hi);
 	OFFSET(VCPU_PC, kvm_vcpu_arch, pc);
+	BLANK();
+
+	OFFSET(VCPU_FPR0, kvm_vcpu_arch, fpu.fpr[0]);
+	OFFSET(VCPU_FPR1, kvm_vcpu_arch, fpu.fpr[1]);
+	OFFSET(VCPU_FPR2, kvm_vcpu_arch, fpu.fpr[2]);
+	OFFSET(VCPU_FPR3, kvm_vcpu_arch, fpu.fpr[3]);
+	OFFSET(VCPU_FPR4, kvm_vcpu_arch, fpu.fpr[4]);
+	OFFSET(VCPU_FPR5, kvm_vcpu_arch, fpu.fpr[5]);
+	OFFSET(VCPU_FPR6, kvm_vcpu_arch, fpu.fpr[6]);
+	OFFSET(VCPU_FPR7, kvm_vcpu_arch, fpu.fpr[7]);
+	OFFSET(VCPU_FPR8, kvm_vcpu_arch, fpu.fpr[8]);
+	OFFSET(VCPU_FPR9, kvm_vcpu_arch, fpu.fpr[9]);
+	OFFSET(VCPU_FPR10, kvm_vcpu_arch, fpu.fpr[10]);
+	OFFSET(VCPU_FPR11, kvm_vcpu_arch, fpu.fpr[11]);
+	OFFSET(VCPU_FPR12, kvm_vcpu_arch, fpu.fpr[12]);
+	OFFSET(VCPU_FPR13, kvm_vcpu_arch, fpu.fpr[13]);
+	OFFSET(VCPU_FPR14, kvm_vcpu_arch, fpu.fpr[14]);
+	OFFSET(VCPU_FPR15, kvm_vcpu_arch, fpu.fpr[15]);
+	OFFSET(VCPU_FPR16, kvm_vcpu_arch, fpu.fpr[16]);
+	OFFSET(VCPU_FPR17, kvm_vcpu_arch, fpu.fpr[17]);
+	OFFSET(VCPU_FPR18, kvm_vcpu_arch, fpu.fpr[18]);
+	OFFSET(VCPU_FPR19, kvm_vcpu_arch, fpu.fpr[19]);
+	OFFSET(VCPU_FPR20, kvm_vcpu_arch, fpu.fpr[20]);
+	OFFSET(VCPU_FPR21, kvm_vcpu_arch, fpu.fpr[21]);
+	OFFSET(VCPU_FPR22, kvm_vcpu_arch, fpu.fpr[22]);
+	OFFSET(VCPU_FPR23, kvm_vcpu_arch, fpu.fpr[23]);
+	OFFSET(VCPU_FPR24, kvm_vcpu_arch, fpu.fpr[24]);
+	OFFSET(VCPU_FPR25, kvm_vcpu_arch, fpu.fpr[25]);
+	OFFSET(VCPU_FPR26, kvm_vcpu_arch, fpu.fpr[26]);
+	OFFSET(VCPU_FPR27, kvm_vcpu_arch, fpu.fpr[27]);
+	OFFSET(VCPU_FPR28, kvm_vcpu_arch, fpu.fpr[28]);
+	OFFSET(VCPU_FPR29, kvm_vcpu_arch, fpu.fpr[29]);
+	OFFSET(VCPU_FPR30, kvm_vcpu_arch, fpu.fpr[30]);
+	OFFSET(VCPU_FPR31, kvm_vcpu_arch, fpu.fpr[31]);
+
+	OFFSET(VCPU_FCR31, kvm_vcpu_arch, fpu.fcr31);
+	OFFSET(VCPU_MSA_CSR, kvm_vcpu_arch, fpu.msacsr);
+	BLANK();
+
 	OFFSET(VCPU_COP0, kvm_vcpu_arch, cop0);
 	OFFSET(VCPU_GUEST_KERNEL_ASID, kvm_vcpu_arch, guest_kernel_asid);
 	OFFSET(VCPU_GUEST_USER_ASID, kvm_vcpu_arch, guest_user_asid);
diff --git a/arch/mips/kernel/genex.S b/arch/mips/kernel/genex.S
index 2ebaabe..af42e70 100644
--- a/arch/mips/kernel/genex.S
+++ b/arch/mips/kernel/genex.S
@@ -360,12 +360,15 @@ NESTED(nmi_handler, PT_SIZE, sp)
 	.set	mips1
 	SET_HARDFLOAT
 	cfc1	a1, fcr31
-	li	a2, ~(0x3f << 12)
-	and	a2, a1
-	ctc1	a2, fcr31
 	.set	pop
-	TRACE_IRQS_ON
-	STI
+	CLI
+	TRACE_IRQS_OFF
+	.endm
+
+	.macro	__build_clear_msa_fpe
+	_cfcmsa	a1, MSA_CSR
+	CLI
+	TRACE_IRQS_OFF
 	.endm
 
 	.macro	__build_clear_ade
@@ -426,7 +429,7 @@ NESTED(nmi_handler, PT_SIZE, sp)
 	BUILD_HANDLER cpu cpu sti silent		/* #11 */
 	BUILD_HANDLER ov ov sti silent			/* #12 */
 	BUILD_HANDLER tr tr sti silent			/* #13 */
-	BUILD_HANDLER msa_fpe msa_fpe sti silent	/* #14 */
+	BUILD_HANDLER msa_fpe msa_fpe msa_fpe silent	/* #14 */
 	BUILD_HANDLER fpe fpe fpe silent		/* #15 */
 	BUILD_HANDLER ftlb ftlb none silent		/* #16 */
 	BUILD_HANDLER msa msa sti silent		/* #21 */
diff --git a/arch/mips/kernel/ptrace.c b/arch/mips/kernel/ptrace.c
index 5104528..7da6e32 100644
--- a/arch/mips/kernel/ptrace.c
+++ b/arch/mips/kernel/ptrace.c
@@ -46,6 +46,26 @@
 #define CREATE_TRACE_POINTS
 #include <trace/events/syscalls.h>
 
+static void init_fp_ctx(struct task_struct *target)
+{
+	/* If FP has been used then the target already has context */
+	if (tsk_used_math(target))
+		return;
+
+	/* Begin with data registers set to all 1s... */
+	memset(&target->thread.fpu.fpr, ~0, sizeof(target->thread.fpu.fpr));
+
+	/* ...and FCSR zeroed */
+	target->thread.fpu.fcr31 = 0;
+
+	/*
+	 * Record that the target has "used" math, such that the context
+	 * just initialised, and any modifications made by the caller,
+	 * aren't discarded.
+	 */
+	set_stopped_child_used_math(target);
+}
+
 /*
  * Called by kernel/ptrace.c when detaching..
  *
@@ -142,6 +162,7 @@ int ptrace_setfpregs(struct task_struct *child, __u32 __user *data)
 	if (!access_ok(VERIFY_READ, data, 33 * 8))
 		return -EIO;
 
+	init_fp_ctx(child);
 	fregs = get_fpu_regs(child);
 
 	for (i = 0; i < 32; i++) {
@@ -439,6 +460,8 @@ static int fpr_set(struct task_struct *target,
 
 	/* XXX fcr31  */
 
+	init_fp_ctx(target);
+
 	if (sizeof(target->thread.fpu.fpr[i]) == sizeof(elf_fpreg_t))
 		return user_regset_copyin(&pos, &count, &kbuf, &ubuf,
 					  &target->thread.fpu,
@@ -660,12 +683,7 @@ long arch_ptrace(struct task_struct *child, long request,
 		case FPR_BASE ... FPR_BASE + 31: {
 			union fpureg *fregs = get_fpu_regs(child);
 
-			if (!tsk_used_math(child)) {
-				/* FP not yet used  */
-				memset(&child->thread.fpu, ~0,
-				       sizeof(child->thread.fpu));
-				child->thread.fpu.fcr31 = 0;
-			}
+			init_fp_ctx(child);
 #ifdef CONFIG_32BIT
 			if (test_thread_flag(TIF_32BIT_FPREGS)) {
 				/*
diff --git a/arch/mips/kernel/r4k_fpu.S b/arch/mips/kernel/r4k_fpu.S
index 676c503..1d88af2 100644
--- a/arch/mips/kernel/r4k_fpu.S
+++ b/arch/mips/kernel/r4k_fpu.S
@@ -34,7 +34,6 @@
 	.endm
 
 	.set	noreorder
-	.set	MIPS_ISA_ARCH_LEVEL_RAW
 
 LEAF(_save_fp_context)
 	.set	push
@@ -103,6 +102,7 @@ LEAF(_save_fp_context)
 	/* Save 32-bit process floating point context */
 LEAF(_save_fp_context32)
 	.set push
+	.set MIPS_ISA_ARCH_LEVEL_RAW
 	SET_HARDFLOAT
 	cfc1	t1, fcr31
 
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index 33984c0..5b4d711 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -701,6 +701,13 @@ asmlinkage void do_ov(struct pt_regs *regs)
 
 int process_fpemu_return(int sig, void __user *fault_addr)
 {
+	/*
+	 * We can't allow the emulated instruction to leave any of the cause
+	 * bits set in FCSR. If they were then the kernel would take an FP
+	 * exception when restoring FP context.
+	 */
+	current->thread.fpu.fcr31 &= ~FPU_CSR_ALL_X;
+
 	if (sig == SIGSEGV || sig == SIGBUS) {
 		struct siginfo si = {0};
 		si.si_addr = fault_addr;
@@ -781,6 +788,11 @@ asmlinkage void do_fpe(struct pt_regs *regs, unsigned long fcr31)
 	if (notify_die(DIE_FP, "FP exception", regs, 0, regs_to_trapnr(regs),
 		       SIGFPE) == NOTIFY_STOP)
 		goto out;
+
+	/* Clear FCSR.Cause before enabling interrupts */
+	write_32bit_cp1_register(CP1_STATUS, fcr31 & ~FPU_CSR_ALL_X);
+	local_irq_enable();
+
 	die_if_kernel("FP exception in kernel code", regs);
 
 	if (fcr31 & FPU_CSR_UNI_X) {
@@ -804,18 +816,12 @@ asmlinkage void do_fpe(struct pt_regs *regs, unsigned long fcr31)
 		sig = fpu_emulator_cop1Handler(regs, &current->thread.fpu, 1,
 					       &fault_addr);
 
-		/*
-		 * We can't allow the emulated instruction to leave any of
-		 * the cause bit set in $fcr31.
-		 */
-		current->thread.fpu.fcr31 &= ~FPU_CSR_ALL_X;
+		/* If something went wrong, signal */
+		process_fpemu_return(sig, fault_addr);
 
 		/* Restore the hardware register state */
 		own_fpu(1);	/* Using the FPU again.	 */
 
-		/* If something went wrong, signal */
-		process_fpemu_return(sig, fault_addr);
-
 		goto out;
 	} else if (fcr31 & FPU_CSR_INV_X)
 		info.si_code = FPE_FLTINV;
@@ -1392,13 +1398,22 @@ out:
 	exception_exit(prev_state);
 }
 
-asmlinkage void do_msa_fpe(struct pt_regs *regs)
+asmlinkage void do_msa_fpe(struct pt_regs *regs, unsigned int msacsr)
 {
 	enum ctx_state prev_state;
 
 	prev_state = exception_enter();
+	if (notify_die(DIE_MSAFP, "MSA FP exception", regs, 0,
+		       regs_to_trapnr(regs), SIGFPE) == NOTIFY_STOP)
+		goto out;
+
+	/* Clear MSACSR.Cause before enabling interrupts */
+	write_msa_csr(msacsr & ~MSA_CSR_CAUSEF);
+	local_irq_enable();
+
 	die_if_kernel("do_msa_fpe invoked from kernel context!", regs);
 	force_sig(SIGFPE, current);
+out:
 	exception_exit(prev_state);
 }
 
diff --git a/arch/mips/kvm/Makefile b/arch/mips/kvm/Makefile
index 401fe02..637ebbe 100644
--- a/arch/mips/kvm/Makefile
+++ b/arch/mips/kvm/Makefile
@@ -1,13 +1,15 @@
 # Makefile for KVM support for MIPS
 #
 
-common-objs = $(addprefix ../../../virt/kvm/, kvm_main.o coalesced_mmio.o)
+common-objs-y = $(addprefix ../../../virt/kvm/, kvm_main.o coalesced_mmio.o)
 
 EXTRA_CFLAGS += -Ivirt/kvm -Iarch/mips/kvm
 
-kvm-objs := $(common-objs) mips.o emulate.o locore.o \
+common-objs-$(CONFIG_CPU_HAS_MSA) += msa.o
+
+kvm-objs := $(common-objs-y) mips.o emulate.o locore.o \
 	    interrupt.o stats.o commpage.o \
-	    dyntrans.o trap_emul.o
+	    dyntrans.o trap_emul.o fpu.o
 
 obj-$(CONFIG_KVM)	+= kvm.o
 obj-y			+= callback.o tlb.o
diff --git a/arch/mips/kvm/emulate.c b/arch/mips/kvm/emulate.c
index fb3e8df..6230f37 100644
--- a/arch/mips/kvm/emulate.c
+++ b/arch/mips/kvm/emulate.c
@@ -884,6 +884,84 @@ enum emulation_result kvm_mips_emul_tlbp(struct kvm_vcpu *vcpu)
 	return EMULATE_DONE;
 }
 
+/**
+ * kvm_mips_config1_wrmask() - Find mask of writable bits in guest Config1
+ * @vcpu:	Virtual CPU.
+ *
+ * Finds the mask of bits which are writable in the guest's Config1 CP0
+ * register, by userland (currently read-only to the guest).
+ */
+unsigned int kvm_mips_config1_wrmask(struct kvm_vcpu *vcpu)
+{
+	unsigned int mask = 0;
+
+	/* Permit FPU to be present if FPU is supported */
+	if (kvm_mips_guest_can_have_fpu(&vcpu->arch))
+		mask |= MIPS_CONF1_FP;
+
+	return mask;
+}
+
+/**
+ * kvm_mips_config3_wrmask() - Find mask of writable bits in guest Config3
+ * @vcpu:	Virtual CPU.
+ *
+ * Finds the mask of bits which are writable in the guest's Config3 CP0
+ * register, by userland (currently read-only to the guest).
+ */
+unsigned int kvm_mips_config3_wrmask(struct kvm_vcpu *vcpu)
+{
+	/* Config4 is optional */
+	unsigned int mask = MIPS_CONF_M;
+
+	/* Permit MSA to be present if MSA is supported */
+	if (kvm_mips_guest_can_have_msa(&vcpu->arch))
+		mask |= MIPS_CONF3_MSA;
+
+	return mask;
+}
+
+/**
+ * kvm_mips_config4_wrmask() - Find mask of writable bits in guest Config4
+ * @vcpu:	Virtual CPU.
+ *
+ * Finds the mask of bits which are writable in the guest's Config4 CP0
+ * register, by userland (currently read-only to the guest).
+ */
+unsigned int kvm_mips_config4_wrmask(struct kvm_vcpu *vcpu)
+{
+	/* Config5 is optional */
+	return MIPS_CONF_M;
+}
+
+/**
+ * kvm_mips_config5_wrmask() - Find mask of writable bits in guest Config5
+ * @vcpu:	Virtual CPU.
+ *
+ * Finds the mask of bits which are writable in the guest's Config5 CP0
+ * register, by the guest itself.
+ */
+unsigned int kvm_mips_config5_wrmask(struct kvm_vcpu *vcpu)
+{
+	unsigned int mask = 0;
+
+	/* Permit MSAEn changes if MSA supported and enabled */
+	if (kvm_mips_guest_has_msa(&vcpu->arch))
+		mask |= MIPS_CONF5_MSAEN;
+
+	/*
+	 * Permit guest FPU mode changes if FPU is enabled and the relevant
+	 * feature exists according to FIR register.
+	 */
+	if (kvm_mips_guest_has_fpu(&vcpu->arch)) {
+		if (cpu_has_fre)
+			mask |= MIPS_CONF5_FRE;
+		/* We don't support UFR or UFE */
+	}
+
+	return mask;
+}
+
 enum emulation_result kvm_mips_emulate_CP0(uint32_t inst, uint32_t *opc,
 					   uint32_t cause, struct kvm_run *run,
 					   struct kvm_vcpu *vcpu)
@@ -1021,18 +1099,114 @@ enum emulation_result kvm_mips_emulate_CP0(uint32_t inst, uint32_t *opc,
 				kvm_mips_write_compare(vcpu,
 						       vcpu->arch.gprs[rt]);
 			} else if ((rd == MIPS_CP0_STATUS) && (sel == 0)) {
-				kvm_write_c0_guest_status(cop0,
-							  vcpu->arch.gprs[rt]);
+				unsigned int old_val, val, change;
+
+				old_val = kvm_read_c0_guest_status(cop0);
+				val = vcpu->arch.gprs[rt];
+				change = val ^ old_val;
+
+				/* Make sure that the NMI bit is never set */
+				val &= ~ST0_NMI;
+
+				/*
+				 * Don't allow CU1 or FR to be set unless FPU
+				 * capability enabled and exists in guest
+				 * configuration.
+				 */
+				if (!kvm_mips_guest_has_fpu(&vcpu->arch))
+					val &= ~(ST0_CU1 | ST0_FR);
+
+				/*
+				 * Also don't allow FR to be set if host doesn't
+				 * support it.
+				 */
+				if (!(current_cpu_data.fpu_id & MIPS_FPIR_F64))
+					val &= ~ST0_FR;
+
+
+				/* Handle changes in FPU mode */
+				preempt_disable();
+
+				/*
+				 * FPU and Vector register state is made
+				 * UNPREDICTABLE by a change of FR, so don't
+				 * even bother saving it.
+				 */
+				if (change & ST0_FR)
+					kvm_drop_fpu(vcpu);
+
+				/*
+				 * If MSA state is already live, it is undefined
+				 * how it interacts with FR=0 FPU state, and we
+				 * don't want to hit reserved instruction
+				 * exceptions trying to save the MSA state later
+				 * when CU=1 && FR=1, so play it safe and save
+				 * it first.
+				 */
+				if (change & ST0_CU1 && !(val & ST0_FR) &&
+				    vcpu->arch.fpu_inuse & KVM_MIPS_FPU_MSA)
+					kvm_lose_fpu(vcpu);
+
 				/*
-				 * Make sure that CU1 and NMI bits are
-				 * never set
+				 * Propagate CU1 (FPU enable) changes
+				 * immediately if the FPU context is already
+				 * loaded. When disabling we leave the context
+				 * loaded so it can be quickly enabled again in
+				 * the near future.
 				 */
-				kvm_clear_c0_guest_status(cop0,
-							  (ST0_CU1 | ST0_NMI));
+				if (change & ST0_CU1 &&
+				    vcpu->arch.fpu_inuse & KVM_MIPS_FPU_FPU)
+					change_c0_status(ST0_CU1, val);
+
+				preempt_enable();
+
+				kvm_write_c0_guest_status(cop0, val);
 
 #ifdef CONFIG_KVM_MIPS_DYN_TRANS
-				kvm_mips_trans_mtc0(inst, opc, vcpu);
+				/*
+				 * If FPU present, we need CU1/FR bits to take
+				 * effect fairly soon.
+				 */
+				if (!kvm_mips_guest_has_fpu(&vcpu->arch))
+					kvm_mips_trans_mtc0(inst, opc, vcpu);
 #endif
+			} else if ((rd == MIPS_CP0_CONFIG) && (sel == 5)) {
+				unsigned int old_val, val, change, wrmask;
+
+				old_val = kvm_read_c0_guest_config5(cop0);
+				val = vcpu->arch.gprs[rt];
+
+				/* Only a few bits are writable in Config5 */
+				wrmask = kvm_mips_config5_wrmask(vcpu);
+				change = (val ^ old_val) & wrmask;
+				val = old_val ^ change;
+
+
+				/* Handle changes in FPU/MSA modes */
+				preempt_disable();
+
+				/*
+				 * Propagate FRE changes immediately if the FPU
+				 * context is already loaded.
+				 */
+				if (change & MIPS_CONF5_FRE &&
+				    vcpu->arch.fpu_inuse & KVM_MIPS_FPU_FPU)
+					change_c0_config5(MIPS_CONF5_FRE, val);
+
+				/*
+				 * Propagate MSAEn changes immediately if the
+				 * MSA context is already loaded. When disabling
+				 * we leave the context loaded so it can be
+				 * quickly enabled again in the near future.
+				 */
+				if (change & MIPS_CONF5_MSAEN &&
+				    vcpu->arch.fpu_inuse & KVM_MIPS_FPU_MSA)
+					change_c0_config5(MIPS_CONF5_MSAEN,
+							  val);
+
+				preempt_enable();
+
+				kvm_write_c0_guest_config5(cop0, val);
 			} else if ((rd == MIPS_CP0_CAUSE) && (sel == 0)) {
 				uint32_t old_cause, new_cause;
 
@@ -1970,6 +2144,146 @@ enum emulation_result kvm_mips_emulate_bp_exc(unsigned long cause,
 	return er;
 }
 
+enum emulation_result kvm_mips_emulate_trap_exc(unsigned long cause,
+						uint32_t *opc,
+						struct kvm_run *run,
+						struct kvm_vcpu *vcpu)
+{
+	struct mips_coproc *cop0 = vcpu->arch.cop0;
+	struct kvm_vcpu_arch *arch = &vcpu->arch;
+	enum emulation_result er = EMULATE_DONE;
+
+	if ((kvm_read_c0_guest_status(cop0) & ST0_EXL) == 0) {
+		/* save old pc */
+		kvm_write_c0_guest_epc(cop0, arch->pc);
+		kvm_set_c0_guest_status(cop0, ST0_EXL);
+
+		if (cause & CAUSEF_BD)
+			kvm_set_c0_guest_cause(cop0, CAUSEF_BD);
+		else
+			kvm_clear_c0_guest_cause(cop0, CAUSEF_BD);
+
+		kvm_debug("Delivering TRAP @ pc %#lx\n", arch->pc);
+
+		kvm_change_c0_guest_cause(cop0, (0xff),
+					  (T_TRAP << CAUSEB_EXCCODE));
+
+		/* Set PC to the exception entry point */
+		arch->pc = KVM_GUEST_KSEG0 + 0x180;
+
+	} else {
+		kvm_err("Trying to deliver TRAP when EXL is already set\n");
+		er = EMULATE_FAIL;
+	}
+
+	return er;
+}
+
+enum emulation_result kvm_mips_emulate_msafpe_exc(unsigned long cause,
+						  uint32_t *opc,
+						  struct kvm_run *run,
+						  struct kvm_vcpu *vcpu)
+{
+	struct mips_coproc *cop0 = vcpu->arch.cop0;
+	struct kvm_vcpu_arch *arch = &vcpu->arch;
+	enum emulation_result er = EMULATE_DONE;
+
+	if ((kvm_read_c0_guest_status(cop0) & ST0_EXL) == 0) {
+		/* save old pc */
+		kvm_write_c0_guest_epc(cop0, arch->pc);
+		kvm_set_c0_guest_status(cop0, ST0_EXL);
+
+		if (cause & CAUSEF_BD)
+			kvm_set_c0_guest_cause(cop0, CAUSEF_BD);
+		else
+			kvm_clear_c0_guest_cause(cop0, CAUSEF_BD);
+
+		kvm_debug("Delivering MSAFPE @ pc %#lx\n", arch->pc);
+
+		kvm_change_c0_guest_cause(cop0, (0xff),
+					  (T_MSAFPE << CAUSEB_EXCCODE));
+
+		/* Set PC to the exception entry point */
+		arch->pc = KVM_GUEST_KSEG0 + 0x180;
+
+	} else {
+		kvm_err("Trying to deliver MSAFPE when EXL is already set\n");
+		er = EMULATE_FAIL;
+	}
+
+	return er;
+}
+
+enum emulation_result kvm_mips_emulate_fpe_exc(unsigned long cause,
+					       uint32_t *opc,
+					       struct kvm_run *run,
+					       struct kvm_vcpu *vcpu)
+{
+	struct mips_coproc *cop0 = vcpu->arch.cop0;
+	struct kvm_vcpu_arch *arch = &vcpu->arch;
+	enum emulation_result er = EMULATE_DONE;
+
+	if ((kvm_read_c0_guest_status(cop0) & ST0_EXL) == 0) {
+		/* save old pc */
+		kvm_write_c0_guest_epc(cop0, arch->pc);
+		kvm_set_c0_guest_status(cop0, ST0_EXL);
+
+		if (cause & CAUSEF_BD)
+			kvm_set_c0_guest_cause(cop0, CAUSEF_BD);
+		else
+			kvm_clear_c0_guest_cause(cop0, CAUSEF_BD);
+
+		kvm_debug("Delivering FPE @ pc %#lx\n", arch->pc);
+
+		kvm_change_c0_guest_cause(cop0, (0xff),
+					  (T_FPE << CAUSEB_EXCCODE));
+
+		/* Set PC to the exception entry point */
+		arch->pc = KVM_GUEST_KSEG0 + 0x180;
+
+	} else {
+		kvm_err("Trying to deliver FPE when EXL is already set\n");
+		er = EMULATE_FAIL;
+	}
+
+	return er;
+}
+
+enum emulation_result kvm_mips_emulate_msadis_exc(unsigned long cause,
+						  uint32_t *opc,
+						  struct kvm_run *run,
+						  struct kvm_vcpu *vcpu)
+{
+	struct mips_coproc *cop0 = vcpu->arch.cop0;
+	struct kvm_vcpu_arch *arch = &vcpu->arch;
+	enum emulation_result er = EMULATE_DONE;
+
+	if ((kvm_read_c0_guest_status(cop0) & ST0_EXL) == 0) {
+		/* save old pc */
+		kvm_write_c0_guest_epc(cop0, arch->pc);
+		kvm_set_c0_guest_status(cop0, ST0_EXL);
+
+		if (cause & CAUSEF_BD)
+			kvm_set_c0_guest_cause(cop0, CAUSEF_BD);
+		else
+			kvm_clear_c0_guest_cause(cop0, CAUSEF_BD);
+
+		kvm_debug("Delivering MSADIS @ pc %#lx\n", arch->pc);
+
+		kvm_change_c0_guest_cause(cop0, (0xff),
+					  (T_MSADIS << CAUSEB_EXCCODE));
+
+		/* Set PC to the exception entry point */
+		arch->pc = KVM_GUEST_KSEG0 + 0x180;
+
+	} else {
+		kvm_err("Trying to deliver MSADIS when EXL is already set\n");
+		er = EMULATE_FAIL;
+	}
+
+	return er;
+}
+
 /* ll/sc, rdhwr, sync emulation */
 
 #define OPCODE 0xfc000000
@@ -2176,6 +2490,10 @@ enum emulation_result kvm_mips_check_privilege(unsigned long cause,
 		case T_SYSCALL:
 		case T_BREAK:
 		case T_RES_INST:
+		case T_TRAP:
+		case T_MSAFPE:
+		case T_FPE:
+		case T_MSADIS:
 			break;
 
 		case T_COP_UNUSABLE:
diff --git a/arch/mips/kvm/fpu.S b/arch/mips/kvm/fpu.S
new file mode 100644
index 0000000..531fbf5
--- /dev/null
+++ b/arch/mips/kvm/fpu.S
@@ -0,0 +1,122 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * FPU context handling code for KVM.
+ *
+ * Copyright (C) 2015 Imagination Technologies Ltd.
+ */
+
+#include <asm/asm.h>
+#include <asm/asm-offsets.h>
+#include <asm/fpregdef.h>
+#include <asm/mipsregs.h>
+#include <asm/regdef.h>
+
+	.set	noreorder
+	.set	noat
+
+LEAF(__kvm_save_fpu)
+	.set	push
+	.set	mips64r2
+	SET_HARDFLOAT
+	mfc0	t0, CP0_STATUS
+	sll     t0, t0, 5			# is Status.FR set?
+	bgez    t0, 1f				# no: skip odd doubles
+	 nop
+	sdc1	$f1,  VCPU_FPR1(a0)
+	sdc1	$f3,  VCPU_FPR3(a0)
+	sdc1	$f5,  VCPU_FPR5(a0)
+	sdc1	$f7,  VCPU_FPR7(a0)
+	sdc1	$f9,  VCPU_FPR9(a0)
+	sdc1	$f11, VCPU_FPR11(a0)
+	sdc1	$f13, VCPU_FPR13(a0)
+	sdc1	$f15, VCPU_FPR15(a0)
+	sdc1	$f17, VCPU_FPR17(a0)
+	sdc1	$f19, VCPU_FPR19(a0)
+	sdc1	$f21, VCPU_FPR21(a0)
+	sdc1	$f23, VCPU_FPR23(a0)
+	sdc1	$f25, VCPU_FPR25(a0)
+	sdc1	$f27, VCPU_FPR27(a0)
+	sdc1	$f29, VCPU_FPR29(a0)
+	sdc1	$f31, VCPU_FPR31(a0)
+1:	sdc1	$f0,  VCPU_FPR0(a0)
+	sdc1	$f2,  VCPU_FPR2(a0)
+	sdc1	$f4,  VCPU_FPR4(a0)
+	sdc1	$f6,  VCPU_FPR6(a0)
+	sdc1	$f8,  VCPU_FPR8(a0)
+	sdc1	$f10, VCPU_FPR10(a0)
+	sdc1	$f12, VCPU_FPR12(a0)
+	sdc1	$f14, VCPU_FPR14(a0)
+	sdc1	$f16, VCPU_FPR16(a0)
+	sdc1	$f18, VCPU_FPR18(a0)
+	sdc1	$f20, VCPU_FPR20(a0)
+	sdc1	$f22, VCPU_FPR22(a0)
+	sdc1	$f24, VCPU_FPR24(a0)
+	sdc1	$f26, VCPU_FPR26(a0)
+	sdc1	$f28, VCPU_FPR28(a0)
+	jr	ra
+	 sdc1	$f30, VCPU_FPR30(a0)
+	.set	pop
+	END(__kvm_save_fpu)
+
+LEAF(__kvm_restore_fpu)
+	.set	push
+	.set	mips64r2
+	SET_HARDFLOAT
+	mfc0	t0, CP0_STATUS
+	sll     t0, t0, 5			# is Status.FR set?
+	bgez    t0, 1f				# no: skip odd doubles
+	 nop
+	ldc1	$f1,  VCPU_FPR1(a0)
+	ldc1	$f3,  VCPU_FPR3(a0)
+	ldc1	$f5,  VCPU_FPR5(a0)
+	ldc1	$f7,  VCPU_FPR7(a0)
+	ldc1	$f9,  VCPU_FPR9(a0)
+	ldc1	$f11, VCPU_FPR11(a0)
+	ldc1	$f13, VCPU_FPR13(a0)
+	ldc1	$f15, VCPU_FPR15(a0)
+	ldc1	$f17, VCPU_FPR17(a0)
+	ldc1	$f19, VCPU_FPR19(a0)
+	ldc1	$f21, VCPU_FPR21(a0)
+	ldc1	$f23, VCPU_FPR23(a0)
+	ldc1	$f25, VCPU_FPR25(a0)
+	ldc1	$f27, VCPU_FPR27(a0)
+	ldc1	$f29, VCPU_FPR29(a0)
+	ldc1	$f31, VCPU_FPR31(a0)
+1:	ldc1	$f0,  VCPU_FPR0(a0)
+	ldc1	$f2,  VCPU_FPR2(a0)
+	ldc1	$f4,  VCPU_FPR4(a0)
+	ldc1	$f6,  VCPU_FPR6(a0)
+	ldc1	$f8,  VCPU_FPR8(a0)
+	ldc1	$f10, VCPU_FPR10(a0)
+	ldc1	$f12, VCPU_FPR12(a0)
+	ldc1	$f14, VCPU_FPR14(a0)
+	ldc1	$f16, VCPU_FPR16(a0)
+	ldc1	$f18, VCPU_FPR18(a0)
+	ldc1	$f20, VCPU_FPR20(a0)
+	ldc1	$f22, VCPU_FPR22(a0)
+	ldc1	$f24, VCPU_FPR24(a0)
+	ldc1	$f26, VCPU_FPR26(a0)
+	ldc1	$f28, VCPU_FPR28(a0)
+	jr	ra
+	 ldc1	$f30, VCPU_FPR30(a0)
+	.set	pop
+	END(__kvm_restore_fpu)
+
+LEAF(__kvm_restore_fcsr)
+	.set	push
+	SET_HARDFLOAT
+	lw	t0, VCPU_FCR31(a0)
+	/*
+	 * The ctc1 must stay at this offset in __kvm_restore_fcsr.
+	 * See kvm_mips_csr_die_notify() which handles t0 containing a value
+	 * which triggers an FP Exception, which must be stepped over and
+	 * ignored since the set cause bits must remain there for the guest.
+	 */
+	ctc1	t0, fcr31
+	jr	ra
+	 nop
+	.set	pop
+	END(__kvm_restore_fcsr)
diff --git a/arch/mips/kvm/locore.S b/arch/mips/kvm/locore.S
index 4a68b17..c567240 100644
--- a/arch/mips/kvm/locore.S
+++ b/arch/mips/kvm/locore.S
@@ -36,6 +36,8 @@
 #define PT_HOST_USERLOCAL   PT_EPC
 
 #define CP0_DDATA_LO        $28,3
+#define CP0_CONFIG3         $16,3
+#define CP0_CONFIG5         $16,5
 #define CP0_EBASE           $15,1
 
 #define CP0_INTCTL          $12,1
@@ -353,6 +355,42 @@ NESTED (MIPSX(GuestException), CALLFRAME_SIZ, ra)
 	LONG_L	k0, VCPU_HOST_EBASE(k1)
 	mtc0	k0,CP0_EBASE
 
+	/*
+	 * If FPU is enabled, save FCR31 and clear it so that later ctc1's don't
+	 * trigger FPE for pending exceptions.
+	 */
+	.set	at
+	and	v1, v0, ST0_CU1
+	beqz	v1, 1f
+	 nop
+	.set	push
+	SET_HARDFLOAT
+	cfc1	t0, fcr31
+	sw	t0, VCPU_FCR31(k1)
+	ctc1	zero,fcr31
+	.set	pop
+	.set	noat
+1:
+
+#ifdef CONFIG_CPU_HAS_MSA
+	/*
+	 * If MSA is enabled, save MSACSR and clear it so that later
+	 * instructions don't trigger MSAFPE for pending exceptions.
+	 */
+	mfc0	t0, CP0_CONFIG3
+	ext	t0, t0, 28, 1 /* MIPS_CONF3_MSAP */
+	beqz	t0, 1f
+	 nop
+	mfc0	t0, CP0_CONFIG5
+	ext	t0, t0, 27, 1 /* MIPS_CONF5_MSAEN */
+	beqz	t0, 1f
+	 nop
+	_cfcmsa	t0, MSA_CSR
+	sw	t0, VCPU_MSA_CSR(k1)
+	_ctcmsa	MSA_CSR, zero
+1:
+#endif
+
 	/* Now that the new EBASE has been loaded, unset BEV and KSU_USER */
 	.set	at
 	and	v0, v0, ~(ST0_EXL | KSU_USER | ST0_IE)
diff --git a/arch/mips/kvm/mips.c b/arch/mips/kvm/mips.c
index c9eccf5..bb68e8d 100644
--- a/arch/mips/kvm/mips.c
+++ b/arch/mips/kvm/mips.c
@@ -11,6 +11,7 @@
 
 #include <linux/errno.h>
 #include <linux/err.h>
+#include <linux/kdebug.h>
 #include <linux/module.h>
 #include <linux/vmalloc.h>
 #include <linux/fs.h>
@@ -48,6 +49,10 @@ struct kvm_stats_debugfs_item debugfs_entries[] = {
 	{ "syscall",	  VCPU_STAT(syscall_exits),	 KVM_STAT_VCPU },
 	{ "resvd_inst",	  VCPU_STAT(resvd_inst_exits),	 KVM_STAT_VCPU },
 	{ "break_inst",	  VCPU_STAT(break_inst_exits),	 KVM_STAT_VCPU },
+	{ "trap_inst",	  VCPU_STAT(trap_inst_exits),	 KVM_STAT_VCPU },
+	{ "msa_fpe",	  VCPU_STAT(msa_fpe_exits),	 KVM_STAT_VCPU },
+	{ "fpe",	  VCPU_STAT(fpe_exits),		 KVM_STAT_VCPU },
+	{ "msa_disabled", VCPU_STAT(msa_disabled_exits), KVM_STAT_VCPU },
 	{ "flush_dcache", VCPU_STAT(flush_dcache_exits), KVM_STAT_VCPU },
 	{ "halt_successful_poll", VCPU_STAT(halt_successful_poll), KVM_STAT_VCPU },
 	{ "halt_wakeup",  VCPU_STAT(halt_wakeup),	 KVM_STAT_VCPU },
@@ -504,10 +509,13 @@ static u64 kvm_mips_get_one_regs[] = {
 	KVM_REG_MIPS_CP0_STATUS,
 	KVM_REG_MIPS_CP0_CAUSE,
 	KVM_REG_MIPS_CP0_EPC,
+	KVM_REG_MIPS_CP0_PRID,
 	KVM_REG_MIPS_CP0_CONFIG,
 	KVM_REG_MIPS_CP0_CONFIG1,
 	KVM_REG_MIPS_CP0_CONFIG2,
 	KVM_REG_MIPS_CP0_CONFIG3,
+	KVM_REG_MIPS_CP0_CONFIG4,
+	KVM_REG_MIPS_CP0_CONFIG5,
 	KVM_REG_MIPS_CP0_CONFIG7,
 	KVM_REG_MIPS_CP0_ERROREPC,
 
@@ -520,10 +528,14 @@ static int kvm_mips_get_reg(struct kvm_vcpu *vcpu,
 			    const struct kvm_one_reg *reg)
 {
 	struct mips_coproc *cop0 = vcpu->arch.cop0;
+	struct mips_fpu_struct *fpu = &vcpu->arch.fpu;
 	int ret;
 	s64 v;
+	s64 vs[2];
+	unsigned int idx;
 
 	switch (reg->id) {
+	/* General purpose registers */
 	case KVM_REG_MIPS_R0 ... KVM_REG_MIPS_R31:
 		v = (long)vcpu->arch.gprs[reg->id - KVM_REG_MIPS_R0];
 		break;
@@ -537,6 +549,67 @@ static int kvm_mips_get_reg(struct kvm_vcpu *vcpu,
 		v = (long)vcpu->arch.pc;
 		break;
 
+	/* Floating point registers */
+	case KVM_REG_MIPS_FPR_32(0) ... KVM_REG_MIPS_FPR_32(31):
+		if (!kvm_mips_guest_has_fpu(&vcpu->arch))
+			return -EINVAL;
+		idx = reg->id - KVM_REG_MIPS_FPR_32(0);
+		/* Odd singles in top of even double when FR=0 */
+		if (kvm_read_c0_guest_status(cop0) & ST0_FR)
+			v = get_fpr32(&fpu->fpr[idx], 0);
+		else
+			v = get_fpr32(&fpu->fpr[idx & ~1], idx & 1);
+		break;
+	case KVM_REG_MIPS_FPR_64(0) ... KVM_REG_MIPS_FPR_64(31):
+		if (!kvm_mips_guest_has_fpu(&vcpu->arch))
+			return -EINVAL;
+		idx = reg->id - KVM_REG_MIPS_FPR_64(0);
+		/* Can't access odd doubles in FR=0 mode */
+		if (idx & 1 && !(kvm_read_c0_guest_status(cop0) & ST0_FR))
+			return -EINVAL;
+		v = get_fpr64(&fpu->fpr[idx], 0);
+		break;
+	case KVM_REG_MIPS_FCR_IR:
+		if (!kvm_mips_guest_has_fpu(&vcpu->arch))
+			return -EINVAL;
+		v = boot_cpu_data.fpu_id;
+		break;
+	case KVM_REG_MIPS_FCR_CSR:
+		if (!kvm_mips_guest_has_fpu(&vcpu->arch))
+			return -EINVAL;
+		v = fpu->fcr31;
+		break;
+
+	/* MIPS SIMD Architecture (MSA) registers */
+	case KVM_REG_MIPS_VEC_128(0) ... KVM_REG_MIPS_VEC_128(31):
+		if (!kvm_mips_guest_has_msa(&vcpu->arch))
+			return -EINVAL;
+		/* Can't access MSA registers in FR=0 mode */
+		if (!(kvm_read_c0_guest_status(cop0) & ST0_FR))
+			return -EINVAL;
+		idx = reg->id - KVM_REG_MIPS_VEC_128(0);
+#ifdef CONFIG_CPU_LITTLE_ENDIAN
+		/* least significant byte first */
+		vs[0] = get_fpr64(&fpu->fpr[idx], 0);
+		vs[1] = get_fpr64(&fpu->fpr[idx], 1);
+#else
+		/* most significant byte first */
+		vs[0] = get_fpr64(&fpu->fpr[idx], 1);
+		vs[1] = get_fpr64(&fpu->fpr[idx], 0);
+#endif
+		break;
+	case KVM_REG_MIPS_MSA_IR:
+		if (!kvm_mips_guest_has_msa(&vcpu->arch))
+			return -EINVAL;
+		v = boot_cpu_data.msa_id;
+		break;
+	case KVM_REG_MIPS_MSA_CSR:
+		if (!kvm_mips_guest_has_msa(&vcpu->arch))
+			return -EINVAL;
+		v = fpu->msacsr;
+		break;
+
+	/* Co-processor 0 registers */
 	case KVM_REG_MIPS_CP0_INDEX:
 		v = (long)kvm_read_c0_guest_index(cop0);
 		break;
@@ -573,8 +646,8 @@ static int kvm_mips_get_reg(struct kvm_vcpu *vcpu,
 	case KVM_REG_MIPS_CP0_EPC:
 		v = (long)kvm_read_c0_guest_epc(cop0);
 		break;
-	case KVM_REG_MIPS_CP0_ERROREPC:
-		v = (long)kvm_read_c0_guest_errorepc(cop0);
+	case KVM_REG_MIPS_CP0_PRID:
+		v = (long)kvm_read_c0_guest_prid(cop0);
 		break;
 	case KVM_REG_MIPS_CP0_CONFIG:
 		v = (long)kvm_read_c0_guest_config(cop0);
@@ -588,9 +661,18 @@ static int kvm_mips_get_reg(struct kvm_vcpu *vcpu,
 	case KVM_REG_MIPS_CP0_CONFIG3:
 		v = (long)kvm_read_c0_guest_config3(cop0);
 		break;
+	case KVM_REG_MIPS_CP0_CONFIG4:
+		v = (long)kvm_read_c0_guest_config4(cop0);
+		break;
+	case KVM_REG_MIPS_CP0_CONFIG5:
+		v = (long)kvm_read_c0_guest_config5(cop0);
+		break;
 	case KVM_REG_MIPS_CP0_CONFIG7:
 		v = (long)kvm_read_c0_guest_config7(cop0);
 		break;
+	case KVM_REG_MIPS_CP0_ERROREPC:
+		v = (long)kvm_read_c0_guest_errorepc(cop0);
+		break;
 	/* registers to be handled specially */
 	case KVM_REG_MIPS_CP0_COUNT:
 	case KVM_REG_MIPS_COUNT_CTL:
@@ -612,6 +694,10 @@ static int kvm_mips_get_reg(struct kvm_vcpu *vcpu,
 		u32 v32 = (u32)v;
 
 		return put_user(v32, uaddr32);
+	} else if ((reg->id & KVM_REG_SIZE_MASK) == KVM_REG_SIZE_U128) {
+		void __user *uaddr = (void __user *)(long)reg->addr;
+
+		return copy_to_user(uaddr, vs, 16);
 	} else {
 		return -EINVAL;
 	}
@@ -621,7 +707,10 @@ static int kvm_mips_set_reg(struct kvm_vcpu *vcpu,
 			    const struct kvm_one_reg *reg)
 {
 	struct mips_coproc *cop0 = vcpu->arch.cop0;
-	u64 v;
+	struct mips_fpu_struct *fpu = &vcpu->arch.fpu;
+	s64 v;
+	s64 vs[2];
+	unsigned int idx;
 
 	if ((reg->id & KVM_REG_SIZE_MASK) == KVM_REG_SIZE_U64) {
 		u64 __user *uaddr64 = (u64 __user *)(long)reg->addr;
@@ -635,11 +724,16 @@ static int kvm_mips_set_reg(struct kvm_vcpu *vcpu,
 		if (get_user(v32, uaddr32) != 0)
 			return -EFAULT;
 		v = (s64)v32;
+	} else if ((reg->id & KVM_REG_SIZE_MASK) == KVM_REG_SIZE_U128) {
+		void __user *uaddr = (void __user *)(long)reg->addr;
+
+		return copy_from_user(vs, uaddr, 16);
 	} else {
 		return -EINVAL;
 	}
 
 	switch (reg->id) {
+	/* General purpose registers */
 	case KVM_REG_MIPS_R0:
 		/* Silently ignore requests to set $0 */
 		break;
@@ -656,6 +750,64 @@ static int kvm_mips_set_reg(struct kvm_vcpu *vcpu,
 		vcpu->arch.pc = v;
 		break;
 
+	/* Floating point registers */
+	case KVM_REG_MIPS_FPR_32(0) ... KVM_REG_MIPS_FPR_32(31):
+		if (!kvm_mips_guest_has_fpu(&vcpu->arch))
+			return -EINVAL;
+		idx = reg->id - KVM_REG_MIPS_FPR_32(0);
+		/* Odd singles in top of even double when FR=0 */
+		if (kvm_read_c0_guest_status(cop0) & ST0_FR)
+			set_fpr32(&fpu->fpr[idx], 0, v);
+		else
+			set_fpr32(&fpu->fpr[idx & ~1], idx & 1, v);
+		break;
+	case KVM_REG_MIPS_FPR_64(0) ... KVM_REG_MIPS_FPR_64(31):
+		if (!kvm_mips_guest_has_fpu(&vcpu->arch))
+			return -EINVAL;
+		idx = reg->id - KVM_REG_MIPS_FPR_64(0);
+		/* Can't access odd doubles in FR=0 mode */
+		if (idx & 1 && !(kvm_read_c0_guest_status(cop0) & ST0_FR))
+			return -EINVAL;
+		set_fpr64(&fpu->fpr[idx], 0, v);
+		break;
+	case KVM_REG_MIPS_FCR_IR:
+		if (!kvm_mips_guest_has_fpu(&vcpu->arch))
+			return -EINVAL;
+		/* Read-only */
+		break;
+	case KVM_REG_MIPS_FCR_CSR:
+		if (!kvm_mips_guest_has_fpu(&vcpu->arch))
+			return -EINVAL;
+		fpu->fcr31 = v;
+		break;
+
+	/* MIPS SIMD Architecture (MSA) registers */
+	case KVM_REG_MIPS_VEC_128(0) ... KVM_REG_MIPS_VEC_128(31):
+		if (!kvm_mips_guest_has_msa(&vcpu->arch))
+			return -EINVAL;
+		idx = reg->id - KVM_REG_MIPS_VEC_128(0);
+#ifdef CONFIG_CPU_LITTLE_ENDIAN
+		/* least significant byte first */
+		set_fpr64(&fpu->fpr[idx], 0, vs[0]);
+		set_fpr64(&fpu->fpr[idx], 1, vs[1]);
+#else
+		/* most significant byte first */
+		set_fpr64(&fpu->fpr[idx], 1, vs[0]);
+		set_fpr64(&fpu->fpr[idx], 0, vs[1]);
+#endif
+		break;
+	case KVM_REG_MIPS_MSA_IR:
+		if (!kvm_mips_guest_has_msa(&vcpu->arch))
+			return -EINVAL;
+		/* Read-only */
+		break;
+	case KVM_REG_MIPS_MSA_CSR:
+		if (!kvm_mips_guest_has_msa(&vcpu->arch))
+			return -EINVAL;
+		fpu->msacsr = v;
+		break;
+
+	/* Co-processor 0 registers */
 	case KVM_REG_MIPS_CP0_INDEX:
 		kvm_write_c0_guest_index(cop0, v);
 		break;
@@ -686,6 +838,9 @@ static int kvm_mips_set_reg(struct kvm_vcpu *vcpu,
 	case KVM_REG_MIPS_CP0_EPC:
 		kvm_write_c0_guest_epc(cop0, v);
 		break;
+	case KVM_REG_MIPS_CP0_PRID:
+		kvm_write_c0_guest_prid(cop0, v);
+		break;
 	case KVM_REG_MIPS_CP0_ERROREPC:
 		kvm_write_c0_guest_errorepc(cop0, v);
 		break;
@@ -693,6 +848,12 @@ static int kvm_mips_set_reg(struct kvm_vcpu *vcpu,
 	case KVM_REG_MIPS_CP0_COUNT:
 	case KVM_REG_MIPS_CP0_COMPARE:
 	case KVM_REG_MIPS_CP0_CAUSE:
+	case KVM_REG_MIPS_CP0_CONFIG:
+	case KVM_REG_MIPS_CP0_CONFIG1:
+	case KVM_REG_MIPS_CP0_CONFIG2:
+	case KVM_REG_MIPS_CP0_CONFIG3:
+	case KVM_REG_MIPS_CP0_CONFIG4:
+	case KVM_REG_MIPS_CP0_CONFIG5:
 	case KVM_REG_MIPS_COUNT_CTL:
 	case KVM_REG_MIPS_COUNT_RESUME:
 	case KVM_REG_MIPS_COUNT_HZ:
@@ -703,6 +864,33 @@ static int kvm_mips_set_reg(struct kvm_vcpu *vcpu,
 	return 0;
 }
 
+static int kvm_vcpu_ioctl_enable_cap(struct kvm_vcpu *vcpu,
+				     struct kvm_enable_cap *cap)
+{
+	int r = 0;
+
+	if (!kvm_vm_ioctl_check_extension(vcpu->kvm, cap->cap))
+		return -EINVAL;
+	if (cap->flags)
+		return -EINVAL;
+	if (cap->args[0])
+		return -EINVAL;
+
+	switch (cap->cap) {
+	case KVM_CAP_MIPS_FPU:
+		vcpu->arch.fpu_enabled = true;
+		break;
+	case KVM_CAP_MIPS_MSA:
+		vcpu->arch.msa_enabled = true;
+		break;
+	default:
+		r = -EINVAL;
+		break;
+	}
+
+	return r;
+}
+
 long kvm_arch_vcpu_ioctl(struct file *filp, unsigned int ioctl,
 			 unsigned long arg)
 {
@@ -760,6 +948,15 @@ long kvm_arch_vcpu_ioctl(struct file *filp, unsigned int ioctl,
 			r = kvm_vcpu_ioctl_interrupt(vcpu, &irq);
 			break;
 		}
+	case KVM_ENABLE_CAP: {
+		struct kvm_enable_cap cap;
+
+		r = -EFAULT;
+		if (copy_from_user(&cap, argp, sizeof(cap)))
+			goto out;
+		r = kvm_vcpu_ioctl_enable_cap(vcpu, &cap);
+		break;
+	}
 	default:
 		r = -ENOIOCTLCMD;
 	}
@@ -868,11 +1065,30 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
 
 	switch (ext) {
 	case KVM_CAP_ONE_REG:
+	case KVM_CAP_ENABLE_CAP:
 		r = 1;
 		break;
 	case KVM_CAP_COALESCED_MMIO:
 		r = KVM_COALESCED_MMIO_PAGE_OFFSET;
 		break;
+	case KVM_CAP_MIPS_FPU:
+		r = !!cpu_has_fpu;
+		break;
+	case KVM_CAP_MIPS_MSA:
+		/*
+		 * We don't support MSA vector partitioning yet:
+		 * 1) It would require explicit support which can't be tested
+		 *    yet due to lack of support in current hardware.
+		 * 2) It extends the state that would need to be saved/restored
+		 *    by e.g. QEMU for migration.
+		 *
+		 * When vector partitioning hardware becomes available, support
+		 * could be added by requiring a flag when enabling
+		 * KVM_CAP_MIPS_MSA capability to indicate that userland knows
+		 * to save/restore the appropriate extra state.
+		 */
+		r = cpu_has_msa && !(boot_cpu_data.msa_id & MSA_IR_WRPF);
+		break;
 	default:
 		r = 0;
 		break;
@@ -1119,6 +1335,30 @@ int kvm_mips_handle_exit(struct kvm_run *run, struct kvm_vcpu *vcpu)
 		ret = kvm_mips_callbacks->handle_break(vcpu);
 		break;
 
+	case T_TRAP:
+		++vcpu->stat.trap_inst_exits;
+		trace_kvm_exit(vcpu, TRAP_INST_EXITS);
+		ret = kvm_mips_callbacks->handle_trap(vcpu);
+		break;
+
+	case T_MSAFPE:
+		++vcpu->stat.msa_fpe_exits;
+		trace_kvm_exit(vcpu, MSA_FPE_EXITS);
+		ret = kvm_mips_callbacks->handle_msa_fpe(vcpu);
+		break;
+
+	case T_FPE:
+		++vcpu->stat.fpe_exits;
+		trace_kvm_exit(vcpu, FPE_EXITS);
+		ret = kvm_mips_callbacks->handle_fpe(vcpu);
+		break;
+
+	case T_MSADIS:
+		++vcpu->stat.msa_disabled_exits;
+		trace_kvm_exit(vcpu, MSA_DISABLED_EXITS);
+		ret = kvm_mips_callbacks->handle_msa_disabled(vcpu);
+		break;
+
 	default:
 		kvm_err("Exception Code: %d, not yet handled, @ PC: %p, inst: 0x%08x  BadVaddr: %#lx Status: %#lx\n",
 			exccode, opc, kvm_get_inst(opc, vcpu), badvaddr,
@@ -1146,12 +1386,233 @@ skip_emul:
 		}
 	}
 
+	if (ret == RESUME_GUEST) {
+		/*
+		 * If FPU / MSA are enabled (i.e. the guest's FPU / MSA context
+		 * is live), restore FCR31 / MSACSR.
+		 *
+		 * This should be before returning to the guest exception
+		 * vector, as it may well cause an [MSA] FP exception if there
+		 * are pending exception bits unmasked. (see
+		 * kvm_mips_csr_die_notifier() for how that is handled).
+		 */
+		if (kvm_mips_guest_has_fpu(&vcpu->arch) &&
+		    read_c0_status() & ST0_CU1)
+			__kvm_restore_fcsr(&vcpu->arch);
+
+		if (kvm_mips_guest_has_msa(&vcpu->arch) &&
+		    read_c0_config5() & MIPS_CONF5_MSAEN)
+			__kvm_restore_msacsr(&vcpu->arch);
+	}
+
 	/* Disable HTW before returning to guest or host */
 	htw_stop();
 
 	return ret;
 }
 
+/* Enable FPU for guest and restore context */
+void kvm_own_fpu(struct kvm_vcpu *vcpu)
+{
+	struct mips_coproc *cop0 = vcpu->arch.cop0;
+	unsigned int sr, cfg5;
+
+	preempt_disable();
+
+	sr = kvm_read_c0_guest_status(cop0);
+
+	/*
+	 * If MSA state is already live, it is undefined how it interacts with
+	 * FR=0 FPU state, and we don't want to hit reserved instruction
+	 * exceptions trying to save the MSA state later when CU=1 && FR=1, so
+	 * play it safe and save it first.
+	 *
+	 * In theory we shouldn't ever hit this case since kvm_lose_fpu() should
+	 * get called when guest CU1 is set, however we can't trust the guest
+	 * not to clobber the status register directly via the commpage.
+	 */
+	if (cpu_has_msa && sr & ST0_CU1 && !(sr & ST0_FR) &&
+	    vcpu->arch.fpu_inuse & KVM_MIPS_FPU_MSA)
+		kvm_lose_fpu(vcpu);
+
+	/*
+	 * Enable FPU for guest
+	 * We set FR and FRE according to guest context
+	 */
+	change_c0_status(ST0_CU1 | ST0_FR, sr);
+	if (cpu_has_fre) {
+		cfg5 = kvm_read_c0_guest_config5(cop0);
+		change_c0_config5(MIPS_CONF5_FRE, cfg5);
+	}
+	enable_fpu_hazard();
+
+	/* If guest FPU state not active, restore it now */
+	if (!(vcpu->arch.fpu_inuse & KVM_MIPS_FPU_FPU)) {
+		__kvm_restore_fpu(&vcpu->arch);
+		vcpu->arch.fpu_inuse |= KVM_MIPS_FPU_FPU;
+	}
+
+	preempt_enable();
+}
+
+#ifdef CONFIG_CPU_HAS_MSA
+/* Enable MSA for guest and restore context */
+void kvm_own_msa(struct kvm_vcpu *vcpu)
+{
+	struct mips_coproc *cop0 = vcpu->arch.cop0;
+	unsigned int sr, cfg5;
+
+	preempt_disable();
+
+	/*
+	 * Enable FPU if enabled in guest, since we're restoring FPU context
+	 * anyway. We set FR and FRE according to guest context.
+	 */
+	if (kvm_mips_guest_has_fpu(&vcpu->arch)) {
+		sr = kvm_read_c0_guest_status(cop0);
+
+		/*
+		 * If FR=0 FPU state is already live, it is undefined how it
+		 * interacts with MSA state, so play it safe and save it first.
+		 */
+		if (!(sr & ST0_FR) &&
+		    (vcpu->arch.fpu_inuse & (KVM_MIPS_FPU_FPU |
+				KVM_MIPS_FPU_MSA)) == KVM_MIPS_FPU_FPU)
+			kvm_lose_fpu(vcpu);
+
+		change_c0_status(ST0_CU1 | ST0_FR, sr);
+		if (sr & ST0_CU1 && cpu_has_fre) {
+			cfg5 = kvm_read_c0_guest_config5(cop0);
+			change_c0_config5(MIPS_CONF5_FRE, cfg5);
+		}
+	}
+
+	/* Enable MSA for guest */
+	set_c0_config5(MIPS_CONF5_MSAEN);
+	enable_fpu_hazard();
+
+	switch (vcpu->arch.fpu_inuse & (KVM_MIPS_FPU_FPU | KVM_MIPS_FPU_MSA)) {
+	case KVM_MIPS_FPU_FPU:
+		/*
+		 * Guest FPU state already loaded, only restore upper MSA state
+		 */
+		__kvm_restore_msa_upper(&vcpu->arch);
+		vcpu->arch.fpu_inuse |= KVM_MIPS_FPU_MSA;
+		break;
+	case 0:
+		/* Neither FPU or MSA already active, restore full MSA state */
+		__kvm_restore_msa(&vcpu->arch);
+		vcpu->arch.fpu_inuse |= KVM_MIPS_FPU_MSA;
+		if (kvm_mips_guest_has_fpu(&vcpu->arch))
+			vcpu->arch.fpu_inuse |= KVM_MIPS_FPU_FPU;
+		break;
+	default:
+		break;
+	}
+
+	preempt_enable();
+}
+#endif
+
+/* Drop FPU & MSA without saving it */
+void kvm_drop_fpu(struct kvm_vcpu *vcpu)
+{
+	preempt_disable();
+	if (cpu_has_msa && vcpu->arch.fpu_inuse & KVM_MIPS_FPU_MSA) {
+		disable_msa();
+		vcpu->arch.fpu_inuse &= ~KVM_MIPS_FPU_MSA;
+	}
+	if (vcpu->arch.fpu_inuse & KVM_MIPS_FPU_FPU) {
+		clear_c0_status(ST0_CU1 | ST0_FR);
+		vcpu->arch.fpu_inuse &= ~KVM_MIPS_FPU_FPU;
+	}
+	preempt_enable();
+}
+
+/* Save and disable FPU & MSA */
+void kvm_lose_fpu(struct kvm_vcpu *vcpu)
+{
+	/*
+	 * FPU & MSA get disabled in root context (hardware) when it is disabled
+	 * in guest context (software), but the register state in the hardware
+	 * may still be in use. This is why we explicitly re-enable the hardware
+	 * before saving.
+	 */
+
+	preempt_disable();
+	if (cpu_has_msa && vcpu->arch.fpu_inuse & KVM_MIPS_FPU_MSA) {
+		set_c0_config5(MIPS_CONF5_MSAEN);
+		enable_fpu_hazard();
+
+		__kvm_save_msa(&vcpu->arch);
+
+		/* Disable MSA & FPU */
+		disable_msa();
+		if (vcpu->arch.fpu_inuse & KVM_MIPS_FPU_FPU)
+			clear_c0_status(ST0_CU1 | ST0_FR);
+		vcpu->arch.fpu_inuse &= ~(KVM_MIPS_FPU_FPU | KVM_MIPS_FPU_MSA);
+	} else if (vcpu->arch.fpu_inuse & KVM_MIPS_FPU_FPU) {
+		set_c0_status(ST0_CU1);
+		enable_fpu_hazard();
+
+		__kvm_save_fpu(&vcpu->arch);
+		vcpu->arch.fpu_inuse &= ~KVM_MIPS_FPU_FPU;
+
+		/* Disable FPU */
+		clear_c0_status(ST0_CU1 | ST0_FR);
+	}
+	preempt_enable();
+}
+
+/*
+ * Step over a specific ctc1 to FCSR and a specific ctcmsa to MSACSR which are
+ * used to restore guest FCSR/MSACSR state and may trigger a "harmless" FP/MSAFP
+ * exception if cause bits are set in the value being written.
+ */
+static int kvm_mips_csr_die_notify(struct notifier_block *self,
+				   unsigned long cmd, void *ptr)
+{
+	struct die_args *args = (struct die_args *)ptr;
+	struct pt_regs *regs = args->regs;
+	unsigned long pc;
+
+	/* Only interested in FPE and MSAFPE */
+	if (cmd != DIE_FP && cmd != DIE_MSAFP)
+		return NOTIFY_DONE;
+
+	/* Return immediately if guest context isn't active */
+	if (!(current->flags & PF_VCPU))
+		return NOTIFY_DONE;
+
+	/* Should never get here from user mode */
+	BUG_ON(user_mode(regs));
+
+	pc = instruction_pointer(regs);
+	switch (cmd) {
+	case DIE_FP:
+		/* match 2nd instruction in __kvm_restore_fcsr */
+		if (pc != (unsigned long)&__kvm_restore_fcsr + 4)
+			return NOTIFY_DONE;
+		break;
+	case DIE_MSAFP:
+		/* match 2nd/3rd instruction in __kvm_restore_msacsr */
+		if (!cpu_has_msa ||
+		    pc < (unsigned long)&__kvm_restore_msacsr + 4 ||
+		    pc > (unsigned long)&__kvm_restore_msacsr + 8)
+			return NOTIFY_DONE;
+		break;
+	}
+
+	/* Move PC forward a little and continue executing */
+	instruction_pointer(regs) += 4;
+
+	return NOTIFY_STOP;
+}
+
+static struct notifier_block kvm_mips_csr_die_notifier = {
+	.notifier_call = kvm_mips_csr_die_notify,
+};
+
 int __init kvm_mips_init(void)
 {
 	int ret;
@@ -1161,6 +1622,8 @@ int __init kvm_mips_init(void)
 	if (ret)
 		return ret;
 
+	register_die_notifier(&kvm_mips_csr_die_notifier);
+
 	/*
 	 * On MIPS, kernel modules are executed from "mapped space", which
 	 * requires TLBs. The TLB handling code is statically linked with
@@ -1173,7 +1636,6 @@ int __init kvm_mips_init(void)
 	kvm_mips_release_pfn_clean = kvm_release_pfn_clean;
 	kvm_mips_is_error_pfn = is_error_pfn;
 
-	pr_info("KVM/MIPS Initialized\n");
 	return 0;
 }
 
@@ -1185,7 +1647,7 @@ void __exit kvm_mips_exit(void)
 	kvm_mips_release_pfn_clean = NULL;
 	kvm_mips_is_error_pfn = NULL;
 
-	pr_info("KVM/MIPS unloaded\n");
+	unregister_die_notifier(&kvm_mips_csr_die_notifier);
 }
 
 module_init(kvm_mips_init);
diff --git a/arch/mips/kvm/msa.S b/arch/mips/kvm/msa.S
new file mode 100644
index 0000000..d02f0c6
--- /dev/null
+++ b/arch/mips/kvm/msa.S
@@ -0,0 +1,161 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * MIPS SIMD Architecture (MSA) context handling code for KVM.
+ *
+ * Copyright (C) 2015 Imagination Technologies Ltd.
+ */
+
+#include <asm/asm.h>
+#include <asm/asm-offsets.h>
+#include <asm/asmmacro.h>
+#include <asm/regdef.h>
+
+	.set	noreorder
+	.set	noat
+
+LEAF(__kvm_save_msa)
+	st_d	0,  VCPU_FPR0,  a0
+	st_d	1,  VCPU_FPR1,  a0
+	st_d	2,  VCPU_FPR2,  a0
+	st_d	3,  VCPU_FPR3,  a0
+	st_d	4,  VCPU_FPR4,  a0
+	st_d	5,  VCPU_FPR5,  a0
+	st_d	6,  VCPU_FPR6,  a0
+	st_d	7,  VCPU_FPR7,  a0
+	st_d	8,  VCPU_FPR8,  a0
+	st_d	9,  VCPU_FPR9,  a0
+	st_d	10, VCPU_FPR10, a0
+	st_d	11, VCPU_FPR11, a0
+	st_d	12, VCPU_FPR12, a0
+	st_d	13, VCPU_FPR13, a0
+	st_d	14, VCPU_FPR14, a0
+	st_d	15, VCPU_FPR15, a0
+	st_d	16, VCPU_FPR16, a0
+	st_d	17, VCPU_FPR17, a0
+	st_d	18, VCPU_FPR18, a0
+	st_d	19, VCPU_FPR19, a0
+	st_d	20, VCPU_FPR20, a0
+	st_d	21, VCPU_FPR21, a0
+	st_d	22, VCPU_FPR22, a0
+	st_d	23, VCPU_FPR23, a0
+	st_d	24, VCPU_FPR24, a0
+	st_d	25, VCPU_FPR25, a0
+	st_d	26, VCPU_FPR26, a0
+	st_d	27, VCPU_FPR27, a0
+	st_d	28, VCPU_FPR28, a0
+	st_d	29, VCPU_FPR29, a0
+	st_d	30, VCPU_FPR30, a0
+	st_d	31, VCPU_FPR31, a0
+	jr	ra
+	 nop
+	END(__kvm_save_msa)
+
+LEAF(__kvm_restore_msa)
+	ld_d	0,  VCPU_FPR0,  a0
+	ld_d	1,  VCPU_FPR1,  a0
+	ld_d	2,  VCPU_FPR2,  a0
+	ld_d	3,  VCPU_FPR3,  a0
+	ld_d	4,  VCPU_FPR4,  a0
+	ld_d	5,  VCPU_FPR5,  a0
+	ld_d	6,  VCPU_FPR6,  a0
+	ld_d	7,  VCPU_FPR7,  a0
+	ld_d	8,  VCPU_FPR8,  a0
+	ld_d	9,  VCPU_FPR9,  a0
+	ld_d	10, VCPU_FPR10, a0
+	ld_d	11, VCPU_FPR11, a0
+	ld_d	12, VCPU_FPR12, a0
+	ld_d	13, VCPU_FPR13, a0
+	ld_d	14, VCPU_FPR14, a0
+	ld_d	15, VCPU_FPR15, a0
+	ld_d	16, VCPU_FPR16, a0
+	ld_d	17, VCPU_FPR17, a0
+	ld_d	18, VCPU_FPR18, a0
+	ld_d	19, VCPU_FPR19, a0
+	ld_d	20, VCPU_FPR20, a0
+	ld_d	21, VCPU_FPR21, a0
+	ld_d	22, VCPU_FPR22, a0
+	ld_d	23, VCPU_FPR23, a0
+	ld_d	24, VCPU_FPR24, a0
+	ld_d	25, VCPU_FPR25, a0
+	ld_d	26, VCPU_FPR26, a0
+	ld_d	27, VCPU_FPR27, a0
+	ld_d	28, VCPU_FPR28, a0
+	ld_d	29, VCPU_FPR29, a0
+	ld_d	30, VCPU_FPR30, a0
+	ld_d	31, VCPU_FPR31, a0
+	jr	ra
+	 nop
+	END(__kvm_restore_msa)
+
+	.macro	kvm_restore_msa_upper	wr, off, base
+	.set	push
+	.set	noat
+#ifdef CONFIG_64BIT
+	ld	$1, \off(\base)
+	insert_d \wr, 1
+#elif defined(CONFIG_CPU_LITTLE_ENDIAN)
+	lw	$1, \off(\base)
+	insert_w \wr, 2
+	lw	$1, (\off+4)(\base)
+	insert_w \wr, 3
+#else /* CONFIG_CPU_BIG_ENDIAN */
+	lw	$1, (\off+4)(\base)
+	insert_w \wr, 2
+	lw	$1, \off(\base)
+	insert_w \wr, 3
+#endif
+	.set	pop
+	.endm
+
+LEAF(__kvm_restore_msa_upper)
+	kvm_restore_msa_upper	0,  VCPU_FPR0 +8, a0
+	kvm_restore_msa_upper	1,  VCPU_FPR1 +8, a0
+	kvm_restore_msa_upper	2,  VCPU_FPR2 +8, a0
+	kvm_restore_msa_upper	3,  VCPU_FPR3 +8, a0
+	kvm_restore_msa_upper	4,  VCPU_FPR4 +8, a0
+	kvm_restore_msa_upper	5,  VCPU_FPR5 +8, a0
+	kvm_restore_msa_upper	6,  VCPU_FPR6 +8, a0
+	kvm_restore_msa_upper	7,  VCPU_FPR7 +8, a0
+	kvm_restore_msa_upper	8,  VCPU_FPR8 +8, a0
+	kvm_restore_msa_upper	9,  VCPU_FPR9 +8, a0
+	kvm_restore_msa_upper	10, VCPU_FPR10+8, a0
+	kvm_restore_msa_upper	11, VCPU_FPR11+8, a0
+	kvm_restore_msa_upper	12, VCPU_FPR12+8, a0
+	kvm_restore_msa_upper	13, VCPU_FPR13+8, a0
+	kvm_restore_msa_upper	14, VCPU_FPR14+8, a0
+	kvm_restore_msa_upper	15, VCPU_FPR15+8, a0
+	kvm_restore_msa_upper	16, VCPU_FPR16+8, a0
+	kvm_restore_msa_upper	17, VCPU_FPR17+8, a0
+	kvm_restore_msa_upper	18, VCPU_FPR18+8, a0
+	kvm_restore_msa_upper	19, VCPU_FPR19+8, a0
+	kvm_restore_msa_upper	20, VCPU_FPR20+8, a0
+	kvm_restore_msa_upper	21, VCPU_FPR21+8, a0
+	kvm_restore_msa_upper	22, VCPU_FPR22+8, a0
+	kvm_restore_msa_upper	23, VCPU_FPR23+8, a0
+	kvm_restore_msa_upper	24, VCPU_FPR24+8, a0
+	kvm_restore_msa_upper	25, VCPU_FPR25+8, a0
+	kvm_restore_msa_upper	26, VCPU_FPR26+8, a0
+	kvm_restore_msa_upper	27, VCPU_FPR27+8, a0
+	kvm_restore_msa_upper	28, VCPU_FPR28+8, a0
+	kvm_restore_msa_upper	29, VCPU_FPR29+8, a0
+	kvm_restore_msa_upper	30, VCPU_FPR30+8, a0
+	kvm_restore_msa_upper	31, VCPU_FPR31+8, a0
+	jr	ra
+	 nop
+	END(__kvm_restore_msa_upper)
+
+LEAF(__kvm_restore_msacsr)
+	lw	t0, VCPU_MSA_CSR(a0)
+	/*
+	 * The ctcmsa must stay at this offset in __kvm_restore_msacsr.
+	 * See kvm_mips_csr_die_notify() which handles t0 containing a value
+	 * which triggers an MSA FP Exception, which must be stepped over and
+	 * ignored since the set cause bits must remain there for the guest.
+	 */
+	_ctcmsa	MSA_CSR, t0
+	jr	ra
+	 nop
+	END(__kvm_restore_msacsr)
diff --git a/arch/mips/kvm/stats.c b/arch/mips/kvm/stats.c
index a74d602..888bb67 100644
--- a/arch/mips/kvm/stats.c
+++ b/arch/mips/kvm/stats.c
@@ -25,6 +25,10 @@ char *kvm_mips_exit_types_str[MAX_KVM_MIPS_EXIT_TYPES] = {
 	"System Call",
 	"Reserved Inst",
 	"Break Inst",
+	"Trap Inst",
+	"MSA FPE",
+	"FPE",
+	"MSA Disabled",
 	"D-Cache Flushes",
 };
 
diff --git a/arch/mips/kvm/tlb.c b/arch/mips/kvm/tlb.c
index bbcd822..aed0ac2 100644
--- a/arch/mips/kvm/tlb.c
+++ b/arch/mips/kvm/tlb.c
@@ -216,6 +216,7 @@ int kvm_mips_host_tlb_write(struct kvm_vcpu *vcpu, unsigned long entryhi,
 	if (idx > current_cpu_data.tlbsize) {
 		kvm_err("%s: Invalid Index: %d\n", __func__, idx);
 		kvm_mips_dump_host_tlbs();
+		local_irq_restore(flags);
 		return -1;
 	}
 
@@ -732,6 +733,9 @@ void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
 		}
 	}
 
+	/* restore guest state to registers */
+	kvm_mips_callbacks->vcpu_set_regs(vcpu);
+
 	local_irq_restore(flags);
 
 }
@@ -750,6 +754,9 @@ void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu)
 	vcpu->arch.preempt_entryhi = read_c0_entryhi();
 	vcpu->arch.last_sched_cpu = cpu;
 
+	/* save guest state in registers */
+	kvm_mips_callbacks->vcpu_get_regs(vcpu);
+
 	if (((cpu_context(cpu, current->mm) ^ asid_cache(cpu)) &
 	     ASID_VERSION_MASK)) {
 		kvm_debug("%s: Dropping MMU Context:  %#lx\n", __func__,
diff --git a/arch/mips/kvm/trace.h b/arch/mips/kvm/trace.h
index c1388d4..bd6437f 100644
--- a/arch/mips/kvm/trace.h
+++ b/arch/mips/kvm/trace.h
@@ -24,18 +24,18 @@ TRACE_EVENT(kvm_exit,
 	    TP_PROTO(struct kvm_vcpu *vcpu, unsigned int reason),
 	    TP_ARGS(vcpu, reason),
 	    TP_STRUCT__entry(
-			__field(struct kvm_vcpu *, vcpu)
+			__field(unsigned long, pc)
 			__field(unsigned int, reason)
 	    ),
 
 	    TP_fast_assign(
-			__entry->vcpu = vcpu;
+			__entry->pc = vcpu->arch.pc;
 			__entry->reason = reason;
 	    ),
 
 	    TP_printk("[%s]PC: 0x%08lx",
 		      kvm_mips_exit_types_str[__entry->reason],
-		      __entry->vcpu->arch.pc)
+		      __entry->pc)
 );
 
 #endif /* _TRACE_KVM_H */
diff --git a/arch/mips/kvm/trap_emul.c b/arch/mips/kvm/trap_emul.c
index fd7257b..d836ed5 100644
--- a/arch/mips/kvm/trap_emul.c
+++ b/arch/mips/kvm/trap_emul.c
@@ -39,16 +39,30 @@ static gpa_t kvm_trap_emul_gva_to_gpa_cb(gva_t gva)
 
 static int kvm_trap_emul_handle_cop_unusable(struct kvm_vcpu *vcpu)
 {
+	struct mips_coproc *cop0 = vcpu->arch.cop0;
 	struct kvm_run *run = vcpu->run;
 	uint32_t __user *opc = (uint32_t __user *) vcpu->arch.pc;
 	unsigned long cause = vcpu->arch.host_cp0_cause;
 	enum emulation_result er = EMULATE_DONE;
 	int ret = RESUME_GUEST;
 
-	if (((cause & CAUSEF_CE) >> CAUSEB_CE) == 1)
-		er = kvm_mips_emulate_fpu_exc(cause, opc, run, vcpu);
-	else
+	if (((cause & CAUSEF_CE) >> CAUSEB_CE) == 1) {
+		/* FPU Unusable */
+		if (!kvm_mips_guest_has_fpu(&vcpu->arch) ||
+		    (kvm_read_c0_guest_status(cop0) & ST0_CU1) == 0) {
+			/*
+			 * Unusable/no FPU in guest:
+			 * deliver guest COP1 Unusable Exception
+			 */
+			er = kvm_mips_emulate_fpu_exc(cause, opc, run, vcpu);
+		} else {
+			/* Restore FPU state */
+			kvm_own_fpu(vcpu);
+			er = EMULATE_DONE;
+		}
+	} else {
 		er = kvm_mips_emulate_inst(cause, opc, run, vcpu);
+	}
 
 	switch (er) {
 	case EMULATE_DONE:
@@ -330,6 +344,107 @@ static int kvm_trap_emul_handle_break(struct kvm_vcpu *vcpu)
 	return ret;
 }
 
+static int kvm_trap_emul_handle_trap(struct kvm_vcpu *vcpu)
+{
+	struct kvm_run *run = vcpu->run;
+	uint32_t __user *opc = (uint32_t __user *)vcpu->arch.pc;
+	unsigned long cause = vcpu->arch.host_cp0_cause;
+	enum emulation_result er = EMULATE_DONE;
+	int ret = RESUME_GUEST;
+
+	er = kvm_mips_emulate_trap_exc(cause, opc, run, vcpu);
+	if (er == EMULATE_DONE) {
+		ret = RESUME_GUEST;
+	} else {
+		run->exit_reason = KVM_EXIT_INTERNAL_ERROR;
+		ret = RESUME_HOST;
+	}
+	return ret;
+}
+
+static int kvm_trap_emul_handle_msa_fpe(struct kvm_vcpu *vcpu)
+{
+	struct kvm_run *run = vcpu->run;
+	uint32_t __user *opc = (uint32_t __user *)vcpu->arch.pc;
+	unsigned long cause = vcpu->arch.host_cp0_cause;
+	enum emulation_result er = EMULATE_DONE;
+	int ret = RESUME_GUEST;
+
+	er = kvm_mips_emulate_msafpe_exc(cause, opc, run, vcpu);
+	if (er == EMULATE_DONE) {
+		ret = RESUME_GUEST;
+	} else {
+		run->exit_reason = KVM_EXIT_INTERNAL_ERROR;
+		ret = RESUME_HOST;
+	}
+	return ret;
+}
+
+static int kvm_trap_emul_handle_fpe(struct kvm_vcpu *vcpu)
+{
+	struct kvm_run *run = vcpu->run;
+	uint32_t __user *opc = (uint32_t __user *)vcpu->arch.pc;
+	unsigned long cause = vcpu->arch.host_cp0_cause;
+	enum emulation_result er = EMULATE_DONE;
+	int ret = RESUME_GUEST;
+
+	er = kvm_mips_emulate_fpe_exc(cause, opc, run, vcpu);
+	if (er == EMULATE_DONE) {
+		ret = RESUME_GUEST;
+	} else {
+		run->exit_reason = KVM_EXIT_INTERNAL_ERROR;
+		ret = RESUME_HOST;
+	}
+	return ret;
+}
+
+/**
+ * kvm_trap_emul_handle_msa_disabled() - Guest used MSA while disabled in root.
+ * @vcpu:	Virtual CPU context.
+ *
+ * Handle when the guest attempts to use MSA when it is disabled.
+ */
+static int kvm_trap_emul_handle_msa_disabled(struct kvm_vcpu *vcpu)
+{
+	struct mips_coproc *cop0 = vcpu->arch.cop0;
+	struct kvm_run *run = vcpu->run;
+	uint32_t __user *opc = (uint32_t __user *) vcpu->arch.pc;
+	unsigned long cause = vcpu->arch.host_cp0_cause;
+	enum emulation_result er = EMULATE_DONE;
+	int ret = RESUME_GUEST;
+
+	if (!kvm_mips_guest_has_msa(&vcpu->arch) ||
+	    (kvm_read_c0_guest_status(cop0) & (ST0_CU1 | ST0_FR)) == ST0_CU1) {
+		/*
+		 * No MSA in guest, or FPU enabled and not in FR=1 mode,
+		 * guest reserved instruction exception
+		 */
+		er = kvm_mips_emulate_ri_exc(cause, opc, run, vcpu);
+	} else if (!(kvm_read_c0_guest_config5(cop0) & MIPS_CONF5_MSAEN)) {
+		/* MSA disabled by guest, guest MSA disabled exception */
+		er = kvm_mips_emulate_msadis_exc(cause, opc, run, vcpu);
+	} else {
+		/* Restore MSA/FPU state */
+		kvm_own_msa(vcpu);
+		er = EMULATE_DONE;
+	}
+
+	switch (er) {
+	case EMULATE_DONE:
+		ret = RESUME_GUEST;
+		break;
+
+	case EMULATE_FAIL:
+		run->exit_reason = KVM_EXIT_INTERNAL_ERROR;
+		ret = RESUME_HOST;
+		break;
+
+	default:
+		BUG();
+	}
+	return ret;
+}
+
 static int kvm_trap_emul_vm_init(struct kvm *kvm)
 {
 	return 0;
@@ -351,8 +466,9 @@ static int kvm_trap_emul_vcpu_setup(struct kvm_vcpu *vcpu)
 	 * guest will come up as expected, for now we simulate a MIPS 24kc
 	 */
 	kvm_write_c0_guest_prid(cop0, 0x00019300);
-	kvm_write_c0_guest_config(cop0,
-				  MIPS_CONFIG0 | (0x1 << CP0C0_AR) |
+	/* Have config1, Cacheable, noncoherent, write-back, write allocate */
+	kvm_write_c0_guest_config(cop0, MIPS_CONF_M | (0x3 << CP0C0_K0) |
+				  (0x1 << CP0C0_AR) |
 				  (MMU_TYPE_R4000 << CP0C0_MT));
 
 	/* Read the cache characteristics from the host Config1 Register */
@@ -368,10 +484,18 @@ static int kvm_trap_emul_vcpu_setup(struct kvm_vcpu *vcpu)
 	      (1 << CP0C1_WR) | (1 << CP0C1_CA));
 	kvm_write_c0_guest_config1(cop0, config1);
 
-	kvm_write_c0_guest_config2(cop0, MIPS_CONFIG2);
-	/* MIPS_CONFIG2 | (read_c0_config2() & 0xfff) */
-	kvm_write_c0_guest_config3(cop0, MIPS_CONFIG3 | (0 << CP0C3_VInt) |
-					 (1 << CP0C3_ULRI));
+	/* Have config3, no tertiary/secondary caches implemented */
+	kvm_write_c0_guest_config2(cop0, MIPS_CONF_M);
+	/* MIPS_CONF_M | (read_c0_config2() & 0xfff) */
+
+	/* Have config4, UserLocal */
+	kvm_write_c0_guest_config3(cop0, MIPS_CONF_M | MIPS_CONF3_ULRI);
+
+	/* Have config5 */
+	kvm_write_c0_guest_config4(cop0, MIPS_CONF_M);
+
+	/* No config6 */
+	kvm_write_c0_guest_config5(cop0, 0);
 
 	/* Set Wait IE/IXMT Ignore in Config7, IAR, AR */
 	kvm_write_c0_guest_config7(cop0, (MIPS_CONF7_WII) | (1 << 10));
@@ -416,6 +540,7 @@ static int kvm_trap_emul_set_one_reg(struct kvm_vcpu *vcpu,
 {
 	struct mips_coproc *cop0 = vcpu->arch.cop0;
 	int ret = 0;
+	unsigned int cur, change;
 
 	switch (reg->id) {
 	case KVM_REG_MIPS_CP0_COUNT:
@@ -444,6 +569,44 @@ static int kvm_trap_emul_set_one_reg(struct kvm_vcpu *vcpu,
 			kvm_write_c0_guest_cause(cop0, v);
 		}
 		break;
+	case KVM_REG_MIPS_CP0_CONFIG:
+		/* read-only for now */
+		break;
+	case KVM_REG_MIPS_CP0_CONFIG1:
+		cur = kvm_read_c0_guest_config1(cop0);
+		change = (cur ^ v) & kvm_mips_config1_wrmask(vcpu);
+		if (change) {
+			v = cur ^ change;
+			kvm_write_c0_guest_config1(cop0, v);
+		}
+		break;
+	case KVM_REG_MIPS_CP0_CONFIG2:
+		/* read-only for now */
+		break;
+	case KVM_REG_MIPS_CP0_CONFIG3:
+		cur = kvm_read_c0_guest_config3(cop0);
+		change = (cur ^ v) & kvm_mips_config3_wrmask(vcpu);
+		if (change) {
+			v = cur ^ change;
+			kvm_write_c0_guest_config3(cop0, v);
+		}
+		break;
+	case KVM_REG_MIPS_CP0_CONFIG4:
+		cur = kvm_read_c0_guest_config4(cop0);
+		change = (cur ^ v) & kvm_mips_config4_wrmask(vcpu);
+		if (change) {
+			v = cur ^ change;
+			kvm_write_c0_guest_config4(cop0, v);
+		}
+		break;
+	case KVM_REG_MIPS_CP0_CONFIG5:
+		cur = kvm_read_c0_guest_config5(cop0);
+		change = (cur ^ v) & kvm_mips_config5_wrmask(vcpu);
+		if (change) {
+			v = cur ^ change;
+			kvm_write_c0_guest_config5(cop0, v);
+		}
+		break;
 	case KVM_REG_MIPS_COUNT_CTL:
 		ret = kvm_mips_set_count_ctl(vcpu, v);
 		break;
@@ -459,6 +622,18 @@ static int kvm_trap_emul_set_one_reg(struct kvm_vcpu *vcpu,
 	return ret;
 }
 
+static int kvm_trap_emul_vcpu_get_regs(struct kvm_vcpu *vcpu)
+{
+	kvm_lose_fpu(vcpu);
+
+	return 0;
+}
+
+static int kvm_trap_emul_vcpu_set_regs(struct kvm_vcpu *vcpu)
+{
+	return 0;
+}
+
 static struct kvm_mips_callbacks kvm_trap_emul_callbacks = {
 	/* exit handlers */
 	.handle_cop_unusable = kvm_trap_emul_handle_cop_unusable,
@@ -470,6 +645,10 @@ static struct kvm_mips_callbacks kvm_trap_emul_callbacks = {
 	.handle_syscall = kvm_trap_emul_handle_syscall,
 	.handle_res_inst = kvm_trap_emul_handle_res_inst,
 	.handle_break = kvm_trap_emul_handle_break,
+	.handle_trap = kvm_trap_emul_handle_trap,
+	.handle_msa_fpe = kvm_trap_emul_handle_msa_fpe,
+	.handle_fpe = kvm_trap_emul_handle_fpe,
+	.handle_msa_disabled = kvm_trap_emul_handle_msa_disabled,
 
 	.vm_init = kvm_trap_emul_vm_init,
 	.vcpu_init = kvm_trap_emul_vcpu_init,
@@ -483,6 +662,8 @@ static struct kvm_mips_callbacks kvm_trap_emul_callbacks = {
 	.irq_clear = kvm_mips_irq_clear_cb,
 	.get_one_reg = kvm_trap_emul_get_one_reg,
 	.set_one_reg = kvm_trap_emul_set_one_reg,
+	.vcpu_get_regs = kvm_trap_emul_vcpu_get_regs,
+	.vcpu_set_regs = kvm_trap_emul_vcpu_set_regs,
 };
 
 int kvm_mips_emulation_init(struct kvm_mips_callbacks **install_callbacks)
diff --git a/arch/mips/lasat/sysctl.c b/arch/mips/lasat/sysctl.c
index 3b7f65c..cf9b4633 100644
--- a/arch/mips/lasat/sysctl.c
+++ b/arch/mips/lasat/sysctl.c
@@ -75,11 +75,11 @@ static int rtctmp;
 int proc_dolasatrtc(struct ctl_table *table, int write,
 		       void *buffer, size_t *lenp, loff_t *ppos)
 {
-	struct timespec ts;
+	struct timespec64 ts;
 	int r;
 
 	if (!write) {
-		read_persistent_clock(&ts);
+		read_persistent_clock64(&ts);
 		rtctmp = ts.tv_sec;
 		/* check for time < 0 and set to 0 */
 		if (rtctmp < 0)
diff --git a/arch/mips/loongson/loongson-3/hpet.c b/arch/mips/loongson/loongson-3/hpet.c
index e898d68..5c21cd3 100644
--- a/arch/mips/loongson/loongson-3/hpet.c
+++ b/arch/mips/loongson/loongson-3/hpet.c
@@ -162,7 +162,7 @@ static irqreturn_t hpet_irq_handler(int irq, void *data)
 
 static struct irqaction hpet_irq = {
 	.handler = hpet_irq_handler,
-	.flags = IRQF_DISABLED | IRQF_NOBALANCING | IRQF_TIMER,
+	.flags = IRQF_NOBALANCING | IRQF_TIMER,
 	.name = "hpet",
 };
 
diff --git a/arch/mips/pci/pci.c b/arch/mips/pci/pci.c
index 1bf60b1..8bb13a4 100644
--- a/arch/mips/pci/pci.c
+++ b/arch/mips/pci/pci.c
@@ -94,27 +94,29 @@ static void pcibios_scanbus(struct pci_controller *hose)
 	pci_add_resource_offset(&resources, hose->io_resource, hose->io_offset);
 	bus = pci_scan_root_bus(NULL, next_busno, hose->pci_ops, hose,
 				&resources);
-	if (!bus)
-		pci_free_resource_list(&resources);
-
 	hose->bus = bus;
 
 	need_domain_info = need_domain_info || hose->index;
 	hose->need_domain_info = need_domain_info;
-	if (bus) {
-		next_busno = bus->busn_res.end + 1;
-		/* Don't allow 8-bit bus number overflow inside the hose -
-		   reserve some space for bridges. */
-		if (next_busno > 224) {
-			next_busno = 0;
-			need_domain_info = 1;
-		}
 
-		if (!pci_has_flag(PCI_PROBE_ONLY)) {
-			pci_bus_size_bridges(bus);
-			pci_bus_assign_resources(bus);
-		}
+	if (!bus) {
+		pci_free_resource_list(&resources);
+		return;
+	}
+
+	next_busno = bus->busn_res.end + 1;
+	/* Don't allow 8-bit bus number overflow inside the hose -
+	   reserve some space for bridges. */
+	if (next_busno > 224) {
+		next_busno = 0;
+		need_domain_info = 1;
+	}
+
+	if (!pci_has_flag(PCI_PROBE_ONLY)) {
+		pci_bus_size_bridges(bus);
+		pci_bus_assign_resources(bus);
 	}
+	pci_bus_add_devices(bus);
 }
 
 #ifdef CONFIG_OF
diff --git a/arch/mn10300/include/asm/pgtable.h b/arch/mn10300/include/asm/pgtable.h
index afab728..96d3f9d 100644
--- a/arch/mn10300/include/asm/pgtable.h
+++ b/arch/mn10300/include/asm/pgtable.h
@@ -56,7 +56,9 @@ extern void paging_init(void);
 #define PGDIR_SHIFT	22
 #define PTRS_PER_PGD	1024
 #define PTRS_PER_PUD	1	/* we don't really have any PUD physically */
+#define __PAGETABLE_PUD_FOLDED
 #define PTRS_PER_PMD	1	/* we don't really have any PMD physically */
+#define __PAGETABLE_PMD_FOLDED
 #define PTRS_PER_PTE	1024
 
 #define PGD_SIZE	PAGE_SIZE
diff --git a/arch/mn10300/unit-asb2305/pci.c b/arch/mn10300/unit-asb2305/pci.c
index 613ca1e..3dfe2d3 100644
--- a/arch/mn10300/unit-asb2305/pci.c
+++ b/arch/mn10300/unit-asb2305/pci.c
@@ -342,6 +342,7 @@ static int __init pcibios_init(void)
 {
 	resource_size_t io_offset, mem_offset;
 	LIST_HEAD(resources);
+	struct pci_bus *bus;
 
 	ioport_resource.start	= 0xA0000000;
 	ioport_resource.end	= 0xDFFFFFFF;
@@ -371,11 +372,14 @@ static int __init pcibios_init(void)
 
 	pci_add_resource_offset(&resources, &pci_ioport_resource, io_offset);
 	pci_add_resource_offset(&resources, &pci_iomem_resource, mem_offset);
-	pci_scan_root_bus(NULL, 0, &pci_direct_ampci, NULL, &resources);
+	bus = pci_scan_root_bus(NULL, 0, &pci_direct_ampci, NULL, &resources);
+	if (!bus)
+		return 0;
 
 	pcibios_irq_init();
 	pcibios_fixup_irqs();
 	pcibios_resource_survey();
+	pci_bus_add_devices(bus);
 	return 0;
 }
 
diff --git a/arch/nios2/include/asm/ptrace.h b/arch/nios2/include/asm/ptrace.h
index 20fb1cf..6424621 100644
--- a/arch/nios2/include/asm/ptrace.h
+++ b/arch/nios2/include/asm/ptrace.h
@@ -15,7 +15,54 @@
 
 #include <uapi/asm/ptrace.h>
 
+/* This struct defines the way the registers are stored on the
+   stack during a system call.  */
+
 #ifndef __ASSEMBLY__
+struct pt_regs {
+	unsigned long  r8;	/* r8-r15 Caller-saved GP registers */
+	unsigned long  r9;
+	unsigned long  r10;
+	unsigned long  r11;
+	unsigned long  r12;
+	unsigned long  r13;
+	unsigned long  r14;
+	unsigned long  r15;
+	unsigned long  r1;	/* Assembler temporary */
+	unsigned long  r2;	/* Retval LS 32bits */
+	unsigned long  r3;	/* Retval MS 32bits */
+	unsigned long  r4;	/* r4-r7 Register arguments */
+	unsigned long  r5;
+	unsigned long  r6;
+	unsigned long  r7;
+	unsigned long  orig_r2;	/* Copy of r2 ?? */
+	unsigned long  ra;	/* Return address */
+	unsigned long  fp;	/* Frame pointer */
+	unsigned long  sp;	/* Stack pointer */
+	unsigned long  gp;	/* Global pointer */
+	unsigned long  estatus;
+	unsigned long  ea;	/* Exception return address (pc) */
+	unsigned long  orig_r7;
+};
+
+/*
+ * This is the extended stack used by signal handlers and the context
+ * switcher: it's pushed after the normal "struct pt_regs".
+ */
+struct switch_stack {
+	unsigned long  r16;	/* r16-r23 Callee-saved GP registers */
+	unsigned long  r17;
+	unsigned long  r18;
+	unsigned long  r19;
+	unsigned long  r20;
+	unsigned long  r21;
+	unsigned long  r22;
+	unsigned long  r23;
+	unsigned long  fp;
+	unsigned long  gp;
+	unsigned long  ra;
+};
+
 #define user_mode(regs)	(((regs)->estatus & ESTATUS_EU))
 
 #define instruction_pointer(regs)	((regs)->ra)
diff --git a/arch/nios2/include/asm/thread_info.h b/arch/nios2/include/asm/thread_info.h
index 1f26657..a16e55c 100644
--- a/arch/nios2/include/asm/thread_info.h
+++ b/arch/nios2/include/asm/thread_info.h
@@ -47,7 +47,6 @@ struct thread_info {
 						  0-0x7FFFFFFF for user-thead
 						  0-0xFFFFFFFF for kernel-thread
 						*/
-	struct restart_block	restart_block;
 	struct pt_regs		*regs;
 };
 
@@ -64,9 +63,6 @@ struct thread_info {
 	.cpu		= 0,			\
 	.preempt_count	= INIT_PREEMPT_COUNT,	\
 	.addr_limit	= KERNEL_DS,		\
-	.restart_block	= {			\
-		.fn = do_no_restart_syscall,	\
-	},					\
 }
 
 #define init_thread_info	(init_thread_union.thread_info)
diff --git a/arch/nios2/include/asm/ucontext.h b/arch/nios2/include/asm/ucontext.h
deleted file mode 100644
index 2c87614..0000000
--- a/arch/nios2/include/asm/ucontext.h
+++ /dev/null
@@ -1,32 +0,0 @@
-/*
- * Copyright (C) 2010 Tobias Klauser <tklauser@distanz.ch>
- * Copyright (C) 2004 Microtronix Datacom Ltd
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-
-#ifndef _ASM_NIOS2_UCONTEXT_H
-#define _ASM_NIOS2_UCONTEXT_H
-
-typedef int greg_t;
-#define NGREG 32
-typedef greg_t gregset_t[NGREG];
-
-struct mcontext {
-	int version;
-	gregset_t gregs;
-};
-
-#define MCONTEXT_VERSION 2
-
-struct ucontext {
-	unsigned long	  uc_flags;
-	struct ucontext  *uc_link;
-	stack_t		  uc_stack;
-	struct mcontext	  uc_mcontext;
-	sigset_t	  uc_sigmask;	/* mask last for extensibility */
-};
-
-#endif
diff --git a/arch/nios2/include/uapi/asm/Kbuild b/arch/nios2/include/uapi/asm/Kbuild
index 4f07ca3f8..e0bb972 100644
--- a/arch/nios2/include/uapi/asm/Kbuild
+++ b/arch/nios2/include/uapi/asm/Kbuild
@@ -1,4 +1,5 @@
 include include/uapi/asm-generic/Kbuild.asm
 
 header-y += elf.h
-header-y += ucontext.h
+
+generic-y += ucontext.h
diff --git a/arch/nios2/include/uapi/asm/elf.h b/arch/nios2/include/uapi/asm/elf.h
index a5b91ae..6f06d3b 100644
--- a/arch/nios2/include/uapi/asm/elf.h
+++ b/arch/nios2/include/uapi/asm/elf.h
@@ -50,9 +50,7 @@
 
 typedef unsigned long elf_greg_t;
 
-#define ELF_NGREG	\
-	((sizeof(struct pt_regs) + sizeof(struct switch_stack)) /	\
-		sizeof(elf_greg_t))
+#define ELF_NGREG		49
 typedef elf_greg_t elf_gregset_t[ELF_NGREG];
 
 typedef unsigned long elf_fpregset_t;
diff --git a/arch/nios2/include/uapi/asm/ptrace.h b/arch/nios2/include/uapi/asm/ptrace.h
index e83a7c9..eff00e67 100644
--- a/arch/nios2/include/uapi/asm/ptrace.h
+++ b/arch/nios2/include/uapi/asm/ptrace.h
@@ -60,60 +60,21 @@
 #define PTR_IPENDING	37
 #define PTR_CPUID	38
 #define PTR_CTL6	39
-#define PTR_CTL7	40
+#define PTR_EXCEPTION	40
 #define PTR_PTEADDR	41
 #define PTR_TLBACC	42
 #define PTR_TLBMISC	43
+#define PTR_ECCINJ	44
+#define PTR_BADADDR	45
+#define PTR_CONFIG	46
+#define PTR_MPUBASE	47
+#define PTR_MPUACC	48
 
-#define NUM_PTRACE_REG (PTR_TLBMISC + 1)
+#define NUM_PTRACE_REG (PTR_MPUACC + 1)
 
-/* this struct defines the way the registers are stored on the
-   stack during a system call.
-
-   There is a fake_regs in setup.c that has to match pt_regs.*/
-
-struct pt_regs {
-	unsigned long  r8;		/* r8-r15 Caller-saved GP registers */
-	unsigned long  r9;
-	unsigned long  r10;
-	unsigned long  r11;
-	unsigned long  r12;
-	unsigned long  r13;
-	unsigned long  r14;
-	unsigned long  r15;
-	unsigned long  r1;		/* Assembler temporary */
-	unsigned long  r2;		/* Retval LS 32bits */
-	unsigned long  r3;		/* Retval MS 32bits */
-	unsigned long  r4;		/* r4-r7 Register arguments */
-	unsigned long  r5;
-	unsigned long  r6;
-	unsigned long  r7;
-	unsigned long  orig_r2;		/* Copy of r2 ?? */
-	unsigned long  ra;		/* Return address */
-	unsigned long  fp;		/* Frame pointer */
-	unsigned long  sp;		/* Stack pointer */
-	unsigned long  gp;		/* Global pointer */
-	unsigned long  estatus;
-	unsigned long  ea;		/* Exception return address (pc) */
-	unsigned long  orig_r7;
-};
-
-/*
- * This is the extended stack used by signal handlers and the context
- * switcher: it's pushed after the normal "struct pt_regs".
- */
-struct switch_stack {
-	unsigned long  r16;		/* r16-r23 Callee-saved GP registers */
-	unsigned long  r17;
-	unsigned long  r18;
-	unsigned long  r19;
-	unsigned long  r20;
-	unsigned long  r21;
-	unsigned long  r22;
-	unsigned long  r23;
-	unsigned long  fp;
-	unsigned long  gp;
-	unsigned long  ra;
+/* User structures for general purpose registers.  */
+struct user_pt_regs {
+	__u32		regs[49];
 };
 
 #endif /* __ASSEMBLY__ */
diff --git a/arch/nios2/include/uapi/asm/sigcontext.h b/arch/nios2/include/uapi/asm/sigcontext.h
index 7b8bb41..b67944a 100644
--- a/arch/nios2/include/uapi/asm/sigcontext.h
+++ b/arch/nios2/include/uapi/asm/sigcontext.h
@@ -15,14 +15,16 @@
  * details.
  */
 
-#ifndef _ASM_NIOS2_SIGCONTEXT_H
-#define _ASM_NIOS2_SIGCONTEXT_H
+#ifndef _UAPI__ASM_SIGCONTEXT_H
+#define _UAPI__ASM_SIGCONTEXT_H
 
-#include <asm/ptrace.h>
+#include <linux/types.h>
+
+#define MCONTEXT_VERSION 2
 
 struct sigcontext {
-	struct pt_regs regs;
-	unsigned long  sc_mask;	/* old sigmask */
+	int version;
+	unsigned long gregs[32];
 };
 
 #endif
diff --git a/arch/nios2/kernel/entry.S b/arch/nios2/kernel/entry.S
index 7729bd3..27b006c 100644
--- a/arch/nios2/kernel/entry.S
+++ b/arch/nios2/kernel/entry.S
@@ -161,7 +161,7 @@ ENTRY(inthandler)
  ***********************************************************************
  */
 ENTRY(handle_trap)
-	ldw	r24, -4(ea)	/* instruction that caused the exception */
+	ldwio	r24, -4(ea)	/* instruction that caused the exception */
 	srli	r24, r24, 4
 	andi	r24, r24, 0x7c
 	movia	r9,trap_table
diff --git a/arch/nios2/kernel/signal.c b/arch/nios2/kernel/signal.c
index 2d0ea25..20662b0 100644
--- a/arch/nios2/kernel/signal.c
+++ b/arch/nios2/kernel/signal.c
@@ -39,11 +39,11 @@ static inline int rt_restore_ucontext(struct pt_regs *regs,
 					struct ucontext *uc, int *pr2)
 {
 	int temp;
-	greg_t *gregs = uc->uc_mcontext.gregs;
+	unsigned long *gregs = uc->uc_mcontext.gregs;
 	int err;
 
 	/* Always make any pending restarted system calls return -EINTR */
-	current_thread_info()->restart_block.fn = do_no_restart_syscall;
+	current->restart_block.fn = do_no_restart_syscall;
 
 	err = __get_user(temp, &uc->uc_mcontext.version);
 	if (temp != MCONTEXT_VERSION)
@@ -127,7 +127,7 @@ badframe:
 static inline int rt_setup_ucontext(struct ucontext *uc, struct pt_regs *regs)
 {
 	struct switch_stack *sw = (struct switch_stack *)regs - 1;
-	greg_t *gregs = uc->uc_mcontext.gregs;
+	unsigned long *gregs = uc->uc_mcontext.gregs;
 	int err = 0;
 
 	err |= __put_user(MCONTEXT_VERSION, &uc->uc_mcontext.version);
diff --git a/arch/nios2/mm/cacheflush.c b/arch/nios2/mm/cacheflush.c
index 2ae482b4..7966429 100644
--- a/arch/nios2/mm/cacheflush.c
+++ b/arch/nios2/mm/cacheflush.c
@@ -23,9 +23,6 @@ static void __flush_dcache(unsigned long start, unsigned long end)
 	end += (cpuinfo.dcache_line_size - 1);
 	end &= ~(cpuinfo.dcache_line_size - 1);
 
-	if (end > start + cpuinfo.dcache_size)
-		end = start + cpuinfo.dcache_size;
-
 	for (addr = start; addr < end; addr += cpuinfo.dcache_line_size) {
 		__asm__ __volatile__ ("   flushda 0(%0)\n"
 					: /* Outputs */
diff --git a/arch/nios2/mm/fault.c b/arch/nios2/mm/fault.c
index 0d231ad..0c9b6af 100644
--- a/arch/nios2/mm/fault.c
+++ b/arch/nios2/mm/fault.c
@@ -126,7 +126,6 @@ good_area:
 		break;
 	}
 
-survive:
 	/*
 	 * If for any reason at all we couldn't handle the fault,
 	 * make sure we exit gracefully rather than endlessly redo
@@ -220,11 +219,6 @@ no_context:
  */
 out_of_memory:
 	up_read(&mm->mmap_sem);
-	if (is_global_init(tsk)) {
-		yield();
-		down_read(&mm->mmap_sem);
-		goto survive;
-	}
 	if (!user_mode(regs))
 		goto no_context;
 	pagefault_out_of_memory();
diff --git a/arch/parisc/include/asm/pgalloc.h b/arch/parisc/include/asm/pgalloc.h
index f213f5b..d174372 100644
--- a/arch/parisc/include/asm/pgalloc.h
+++ b/arch/parisc/include/asm/pgalloc.h
@@ -26,7 +26,7 @@ static inline pgd_t *pgd_alloc(struct mm_struct *mm)
 
 	if (likely(pgd != NULL)) {
 		memset(pgd, 0, PAGE_SIZE<<PGD_ALLOC_ORDER);
-#ifdef CONFIG_64BIT
+#if PT_NLEVELS == 3
 		actual_pgd += PTRS_PER_PGD;
 		/* Populate first pmd with allocated memory.  We mark it
 		 * with PxD_FLAG_ATTACHED as a signal to the system that this
@@ -45,7 +45,7 @@ static inline pgd_t *pgd_alloc(struct mm_struct *mm)
 
 static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
 {
-#ifdef CONFIG_64BIT
+#if PT_NLEVELS == 3
 	pgd -= PTRS_PER_PGD;
 #endif
 	free_pages((unsigned long)pgd, PGD_ALLOC_ORDER);
@@ -72,12 +72,15 @@ static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address)
 
 static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
 {
-#ifdef CONFIG_64BIT
 	if(pmd_flag(*pmd) & PxD_FLAG_ATTACHED)
-		/* This is the permanent pmd attached to the pgd;
-		 * cannot free it */
+		/*
+		 * This is the permanent pmd attached to the pgd;
+		 * cannot free it.
+		 * Increment the counter to compensate for the decrement
+		 * done by generic mm code.
+		 */
+		mm_inc_nr_pmds(mm);
 		return;
-#endif
 	free_pages((unsigned long)pmd, PMD_ORDER);
 }
 
@@ -99,7 +102,7 @@ static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
 static inline void
 pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd, pte_t *pte)
 {
-#ifdef CONFIG_64BIT
+#if PT_NLEVELS == 3
 	/* preserve the gateway marker if this is the beginning of
 	 * the permanent pmd */
 	if(pmd_flag(*pmd) & PxD_FLAG_ATTACHED)
diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h
index 8c966b2..15207b9 100644
--- a/arch/parisc/include/asm/pgtable.h
+++ b/arch/parisc/include/asm/pgtable.h
@@ -96,6 +96,7 @@ extern void purge_tlb_entries(struct mm_struct *, unsigned long);
 #if PT_NLEVELS == 3
 #define BITS_PER_PMD	(PAGE_SHIFT + PMD_ORDER - BITS_PER_PMD_ENTRY)
 #else
+#define __PAGETABLE_PMD_FOLDED
 #define BITS_PER_PMD	0
 #endif
 #define PTRS_PER_PMD    (1UL << BITS_PER_PMD)
diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
index 5a8997d..8eefb12 100644
--- a/arch/parisc/kernel/syscall_table.S
+++ b/arch/parisc/kernel/syscall_table.S
@@ -55,8 +55,8 @@
 #define ENTRY_COMP(_name_) .word sys_##_name_
 #endif
 
-	ENTRY_SAME(restart_syscall)	/* 0 */
-	ENTRY_SAME(exit)
+90:	ENTRY_SAME(restart_syscall)	/* 0 */
+91:	ENTRY_SAME(exit)
 	ENTRY_SAME(fork_wrapper)
 	ENTRY_SAME(read)
 	ENTRY_SAME(write)
@@ -439,7 +439,10 @@
 	ENTRY_SAME(bpf)
 	ENTRY_COMP(execveat)
 
-	/* Nothing yet */
+
+.ifne (. - 90b) - (__NR_Linux_syscalls * (91b - 90b))
+.error "size of syscall table does not fit value of __NR_Linux_syscalls"
+.endif
 
 #undef ENTRY_SAME
 #undef ENTRY_DIFF
diff --git a/arch/powerpc/include/asm/cputhreads.h b/arch/powerpc/include/asm/cputhreads.h
index 2bf8e93..4c8ad59 100644
--- a/arch/powerpc/include/asm/cputhreads.h
+++ b/arch/powerpc/include/asm/cputhreads.h
@@ -55,7 +55,7 @@ static inline cpumask_t cpu_thread_mask_to_cores(const struct cpumask *threads)
 
 static inline int cpu_nr_cores(void)
 {
-	return NR_CPUS >> threads_shift;
+	return nr_cpu_ids >> threads_shift;
 }
 
 static inline cpumask_t cpu_online_cores_map(void)
diff --git a/arch/powerpc/include/asm/iommu.h b/arch/powerpc/include/asm/iommu.h
index 9cfa370..f1ea597 100644
--- a/arch/powerpc/include/asm/iommu.h
+++ b/arch/powerpc/include/asm/iommu.h
@@ -113,6 +113,7 @@ extern void iommu_register_group(struct iommu_table *tbl,
 				 int pci_domain_number, unsigned long pe_num);
 extern int iommu_add_device(struct device *dev);
 extern void iommu_del_device(struct device *dev);
+extern int __init tce_iommu_bus_notifier_init(void);
 #else
 static inline void iommu_register_group(struct iommu_table *tbl,
 					int pci_domain_number,
@@ -128,6 +129,11 @@ static inline int iommu_add_device(struct device *dev)
 static inline void iommu_del_device(struct device *dev)
 {
 }
+
+static inline int __init tce_iommu_bus_notifier_init(void)
+{
+        return 0;
+}
 #endif /* !CONFIG_IOMMU_API */
 
 static inline void set_iommu_table_base_and_group(struct device *dev,
diff --git a/arch/powerpc/include/asm/irq_work.h b/arch/powerpc/include/asm/irq_work.h
new file mode 100644
index 0000000..744fd54
--- /dev/null
+++ b/arch/powerpc/include/asm/irq_work.h
@@ -0,0 +1,9 @@
+#ifndef _ASM_POWERPC_IRQ_WORK_H
+#define _ASM_POWERPC_IRQ_WORK_H
+
+static inline bool arch_irq_work_has_interrupt(void)
+{
+	return true;
+}
+
+#endif /* _ASM_POWERPC_IRQ_WORK_H */
diff --git a/arch/powerpc/include/asm/ppc-opcode.h b/arch/powerpc/include/asm/ppc-opcode.h
index 03cd858..4cbe23a 100644
--- a/arch/powerpc/include/asm/ppc-opcode.h
+++ b/arch/powerpc/include/asm/ppc-opcode.h
@@ -153,6 +153,7 @@
 #define PPC_INST_MFSPR_PVR_MASK		0xfc1fffff
 #define PPC_INST_MFTMR			0x7c0002dc
 #define PPC_INST_MSGSND			0x7c00019c
+#define PPC_INST_MSGCLR			0x7c0001dc
 #define PPC_INST_MSGSNDP		0x7c00011c
 #define PPC_INST_MTTMR			0x7c0003dc
 #define PPC_INST_NOP			0x60000000
@@ -309,6 +310,8 @@
 					___PPC_RB(b) | __PPC_EH(eh))
 #define PPC_MSGSND(b)		stringify_in_c(.long PPC_INST_MSGSND | \
 					___PPC_RB(b))
+#define PPC_MSGCLR(b)		stringify_in_c(.long PPC_INST_MSGCLR | \
+					___PPC_RB(b))
 #define PPC_MSGSNDP(b)		stringify_in_c(.long PPC_INST_MSGSNDP | \
 					___PPC_RB(b))
 #define PPC_POPCNTB(a, s)	stringify_in_c(.long PPC_INST_POPCNTB | \
diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h
index 1c874fb..af56b5c 100644
--- a/arch/powerpc/include/asm/reg.h
+++ b/arch/powerpc/include/asm/reg.h
@@ -608,13 +608,16 @@
 #define   SRR1_ISI_N_OR_G	0x10000000 /* ISI: Access is no-exec or G */
 #define   SRR1_ISI_PROT		0x08000000 /* ISI: Other protection fault */
 #define   SRR1_WAKEMASK		0x00380000 /* reason for wakeup */
+#define   SRR1_WAKEMASK_P8	0x003c0000 /* reason for wakeup on POWER8 */
 #define   SRR1_WAKESYSERR	0x00300000 /* System error */
 #define   SRR1_WAKEEE		0x00200000 /* External interrupt */
 #define   SRR1_WAKEMT		0x00280000 /* mtctrl */
 #define	  SRR1_WAKEHMI		0x00280000 /* Hypervisor maintenance */
 #define   SRR1_WAKEDEC		0x00180000 /* Decrementer interrupt */
+#define   SRR1_WAKEDBELL	0x00140000 /* Privileged doorbell on P8 */
 #define   SRR1_WAKETHERM	0x00100000 /* Thermal management interrupt */
 #define	  SRR1_WAKERESET	0x00100000 /* System reset */
+#define   SRR1_WAKEHDBELL	0x000c0000 /* Hypervisor doorbell on P8 */
 #define	  SRR1_WAKESTATE	0x00030000 /* Powersave exit mask [46:47] */
 #define	  SRR1_WS_DEEPEST	0x00030000 /* Some resources not maintained,
 					  * may not be recoverable */
diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c
index f337666..f830468 100644
--- a/arch/powerpc/kernel/cputable.c
+++ b/arch/powerpc/kernel/cputable.c
@@ -437,6 +437,26 @@ static struct cpu_spec __initdata cpu_specs[] = {
 		.machine_check_early	= __machine_check_early_realmode_p8,
 		.platform		= "power8",
 	},
+	{	/* Power8NVL */
+		.pvr_mask		= 0xffff0000,
+		.pvr_value		= 0x004c0000,
+		.cpu_name		= "POWER8NVL (raw)",
+		.cpu_features		= CPU_FTRS_POWER8,
+		.cpu_user_features	= COMMON_USER_POWER8,
+		.cpu_user_features2	= COMMON_USER2_POWER8,
+		.mmu_features		= MMU_FTRS_POWER8,
+		.icache_bsize		= 128,
+		.dcache_bsize		= 128,
+		.num_pmcs		= 6,
+		.pmc_type		= PPC_PMC_IBM,
+		.oprofile_cpu_type	= "ppc64/power8",
+		.oprofile_type		= PPC_OPROFILE_INVALID,
+		.cpu_setup		= __setup_cpu_power8,
+		.cpu_restore		= __restore_cpu_power8,
+		.flush_tlb		= __flush_tlb_power8,
+		.machine_check_early	= __machine_check_early_realmode_p8,
+		.platform		= "power8",
+	},
 	{	/* Power8 DD1: Does not support doorbell IPIs */
 		.pvr_mask		= 0xffffff00,
 		.pvr_value		= 0x004d0100,
diff --git a/arch/powerpc/kernel/dbell.c b/arch/powerpc/kernel/dbell.c
index f421781..2128f3a 100644
--- a/arch/powerpc/kernel/dbell.c
+++ b/arch/powerpc/kernel/dbell.c
@@ -17,6 +17,7 @@
 
 #include <asm/dbell.h>
 #include <asm/irq_regs.h>
+#include <asm/kvm_ppc.h>
 
 #ifdef CONFIG_SMP
 void doorbell_setup_this_cpu(void)
@@ -41,6 +42,7 @@ void doorbell_exception(struct pt_regs *regs)
 
 	may_hard_irq_enable();
 
+	kvmppc_set_host_ipi(smp_processor_id(), 0);
 	__this_cpu_inc(irq_stat.doorbell_irqs);
 
 	smp_ipi_demux();
diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S
index c2df815..9519e6b 100644
--- a/arch/powerpc/kernel/exceptions-64s.S
+++ b/arch/powerpc/kernel/exceptions-64s.S
@@ -1408,7 +1408,7 @@ machine_check_handle_early:
 	bne	9f			/* continue in V mode if we are. */
 
 5:
-#ifdef CONFIG_KVM_BOOK3S_64_HV
+#ifdef CONFIG_KVM_BOOK3S_64_HANDLER
 	/*
 	 * We are coming from kernel context. Check if we are coming from
 	 * guest. if yes, then we can continue. We will fall through
diff --git a/arch/powerpc/kernel/iommu.c b/arch/powerpc/kernel/iommu.c
index 5d3968c..b054f33 100644
--- a/arch/powerpc/kernel/iommu.c
+++ b/arch/powerpc/kernel/iommu.c
@@ -1175,4 +1175,30 @@ void iommu_del_device(struct device *dev)
 }
 EXPORT_SYMBOL_GPL(iommu_del_device);
 
+static int tce_iommu_bus_notifier(struct notifier_block *nb,
+                unsigned long action, void *data)
+{
+        struct device *dev = data;
+
+        switch (action) {
+        case BUS_NOTIFY_ADD_DEVICE:
+                return iommu_add_device(dev);
+        case BUS_NOTIFY_DEL_DEVICE:
+                if (dev->iommu_group)
+                        iommu_del_device(dev);
+                return 0;
+        default:
+                return 0;
+        }
+}
+
+static struct notifier_block tce_iommu_bus_nb = {
+        .notifier_call = tce_iommu_bus_notifier,
+};
+
+int __init tce_iommu_bus_notifier_init(void)
+{
+        bus_register_notifier(&pci_bus_type, &tce_iommu_bus_nb);
+        return 0;
+}
 #endif /* CONFIG_IOMMU_API */
diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
index 6e19afa..ec9ec20 100644
--- a/arch/powerpc/kernel/smp.c
+++ b/arch/powerpc/kernel/smp.c
@@ -541,8 +541,8 @@ int __cpu_up(unsigned int cpu, struct task_struct *tidle)
 	if (smp_ops->give_timebase)
 		smp_ops->give_timebase();
 
-	/* Wait until cpu puts itself in the online map */
-	while (!cpu_online(cpu))
+	/* Wait until cpu puts itself in the online & active maps */
+	while (!cpu_online(cpu) || !cpu_active(cpu))
 		cpu_relax();
 
 	return 0;
diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c
index de4018a..de74756 100644
--- a/arch/powerpc/kvm/book3s_hv.c
+++ b/arch/powerpc/kvm/book3s_hv.c
@@ -636,7 +636,7 @@ static int kvmppc_get_yield_count(struct kvm_vcpu *vcpu)
 	spin_lock(&vcpu->arch.vpa_update_lock);
 	lppaca = (struct lppaca *)vcpu->arch.vpa.pinned_addr;
 	if (lppaca)
-		yield_count = lppaca->yield_count;
+		yield_count = be32_to_cpu(lppaca->yield_count);
 	spin_unlock(&vcpu->arch.vpa_update_lock);
 	return yield_count;
 }
@@ -942,20 +942,20 @@ static int kvm_arch_vcpu_ioctl_set_sregs_hv(struct kvm_vcpu *vcpu,
 static void kvmppc_set_lpcr(struct kvm_vcpu *vcpu, u64 new_lpcr,
 		bool preserve_top32)
 {
+	struct kvm *kvm = vcpu->kvm;
 	struct kvmppc_vcore *vc = vcpu->arch.vcore;
 	u64 mask;
 
+	mutex_lock(&kvm->lock);
 	spin_lock(&vc->lock);
 	/*
 	 * If ILE (interrupt little-endian) has changed, update the
 	 * MSR_LE bit in the intr_msr for each vcpu in this vcore.
 	 */
 	if ((new_lpcr & LPCR_ILE) != (vc->lpcr & LPCR_ILE)) {
-		struct kvm *kvm = vcpu->kvm;
 		struct kvm_vcpu *vcpu;
 		int i;
 
-		mutex_lock(&kvm->lock);
 		kvm_for_each_vcpu(i, vcpu, kvm) {
 			if (vcpu->arch.vcore != vc)
 				continue;
@@ -964,7 +964,6 @@ static void kvmppc_set_lpcr(struct kvm_vcpu *vcpu, u64 new_lpcr,
 			else
 				vcpu->arch.intr_msr &= ~MSR_LE;
 		}
-		mutex_unlock(&kvm->lock);
 	}
 
 	/*
@@ -981,6 +980,7 @@ static void kvmppc_set_lpcr(struct kvm_vcpu *vcpu, u64 new_lpcr,
 		mask &= 0xFFFFFFFF;
 	vc->lpcr = (vc->lpcr & ~mask) | (new_lpcr & mask);
 	spin_unlock(&vc->lock);
+	mutex_unlock(&kvm->lock);
 }
 
 static int kvmppc_get_one_reg_hv(struct kvm_vcpu *vcpu, u64 id,
diff --git a/arch/powerpc/kvm/book3s_hv_rmhandlers.S b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
index bb94e6f..6cbf163 100644
--- a/arch/powerpc/kvm/book3s_hv_rmhandlers.S
+++ b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
@@ -1005,6 +1005,7 @@ END_FTR_SECTION_IFSET(CPU_FTR_HAS_PPR)
 	/* Save HEIR (HV emulation assist reg) in emul_inst
 	   if this is an HEI (HV emulation interrupt, e40) */
 	li	r3,KVM_INST_FETCH_FAILED
+	stw	r3,VCPU_LAST_INST(r9)
 	cmpwi	r12,BOOK3S_INTERRUPT_H_EMUL_ASSIST
 	bne	11f
 	mfspr	r3,SPRN_HEIR
diff --git a/arch/powerpc/kvm/mpic.c b/arch/powerpc/kvm/mpic.c
index 39b3a8f..6249cdc 100644
--- a/arch/powerpc/kvm/mpic.c
+++ b/arch/powerpc/kvm/mpic.c
@@ -34,7 +34,7 @@
 #include <asm/kvm_para.h>
 #include <asm/kvm_host.h>
 #include <asm/kvm_ppc.h>
-#include "iodev.h"
+#include <kvm/iodev.h>
 
 #define MAX_CPU     32
 #define MAX_SRC     256
@@ -289,11 +289,6 @@ static inline void IRQ_resetbit(struct irq_queue *q, int n_IRQ)
 	clear_bit(n_IRQ, q->queue);
 }
 
-static inline int IRQ_testbit(struct irq_queue *q, int n_IRQ)
-{
-	return test_bit(n_IRQ, q->queue);
-}
-
 static void IRQ_check(struct openpic *opp, struct irq_queue *q)
 {
 	int irq = -1;
@@ -1374,8 +1369,9 @@ static int kvm_mpic_write_internal(struct openpic *opp, gpa_t addr, u32 val)
 	return -ENXIO;
 }
 
-static int kvm_mpic_read(struct kvm_io_device *this, gpa_t addr,
-			 int len, void *ptr)
+static int kvm_mpic_read(struct kvm_vcpu *vcpu,
+			 struct kvm_io_device *this,
+			 gpa_t addr, int len, void *ptr)
 {
 	struct openpic *opp = container_of(this, struct openpic, mmio);
 	int ret;
@@ -1415,8 +1411,9 @@ static int kvm_mpic_read(struct kvm_io_device *this, gpa_t addr,
 	return ret;
 }
 
-static int kvm_mpic_write(struct kvm_io_device *this, gpa_t addr,
-			  int len, const void *ptr)
+static int kvm_mpic_write(struct kvm_vcpu *vcpu,
+			  struct kvm_io_device *this,
+			  gpa_t addr, int len, const void *ptr)
 {
 	struct openpic *opp = container_of(this, struct openpic, mmio);
 	int ret;
diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c
index 27c0fac..24bfe40 100644
--- a/arch/powerpc/kvm/powerpc.c
+++ b/arch/powerpc/kvm/powerpc.c
@@ -807,7 +807,7 @@ int kvmppc_handle_load(struct kvm_run *run, struct kvm_vcpu *vcpu,
 
 	idx = srcu_read_lock(&vcpu->kvm->srcu);
 
-	ret = kvm_io_bus_read(vcpu->kvm, KVM_MMIO_BUS, run->mmio.phys_addr,
+	ret = kvm_io_bus_read(vcpu, KVM_MMIO_BUS, run->mmio.phys_addr,
 			      bytes, &run->mmio.data);
 
 	srcu_read_unlock(&vcpu->kvm->srcu, idx);
@@ -880,7 +880,7 @@ int kvmppc_handle_store(struct kvm_run *run, struct kvm_vcpu *vcpu,
 
 	idx = srcu_read_lock(&vcpu->kvm->srcu);
 
-	ret = kvm_io_bus_write(vcpu->kvm, KVM_MMIO_BUS, run->mmio.phys_addr,
+	ret = kvm_io_bus_write(vcpu, KVM_MMIO_BUS, run->mmio.phys_addr,
 			       bytes, &run->mmio.data);
 
 	srcu_read_unlock(&vcpu->kvm->srcu, idx);
diff --git a/arch/powerpc/platforms/powernv/opal-wrappers.S b/arch/powerpc/platforms/powernv/opal-wrappers.S
index 0509bca..fcbe899 100644
--- a/arch/powerpc/platforms/powernv/opal-wrappers.S
+++ b/arch/powerpc/platforms/powernv/opal-wrappers.S
@@ -9,11 +9,11 @@
  * 2 of the License, or (at your option) any later version.
  */
 
+#include <linux/jump_label.h>
 #include <asm/ppc_asm.h>
 #include <asm/hvcall.h>
 #include <asm/asm-offsets.h>
 #include <asm/opal.h>
-#include <asm/jump_label.h>
 
 	.section	".text"
 
diff --git a/arch/powerpc/platforms/powernv/pci.c b/arch/powerpc/platforms/powernv/pci.c
index e69142f..54323d6 100644
--- a/arch/powerpc/platforms/powernv/pci.c
+++ b/arch/powerpc/platforms/powernv/pci.c
@@ -836,30 +836,4 @@ void __init pnv_pci_init(void)
 #endif
 }
 
-static int tce_iommu_bus_notifier(struct notifier_block *nb,
-		unsigned long action, void *data)
-{
-	struct device *dev = data;
-
-	switch (action) {
-	case BUS_NOTIFY_ADD_DEVICE:
-		return iommu_add_device(dev);
-	case BUS_NOTIFY_DEL_DEVICE:
-		if (dev->iommu_group)
-			iommu_del_device(dev);
-		return 0;
-	default:
-		return 0;
-	}
-}
-
-static struct notifier_block tce_iommu_bus_nb = {
-	.notifier_call = tce_iommu_bus_notifier,
-};
-
-static int __init tce_iommu_bus_notifier_init(void)
-{
-	bus_register_notifier(&pci_bus_type, &tce_iommu_bus_nb);
-	return 0;
-}
 machine_subsys_initcall_sync(powernv, tce_iommu_bus_notifier_init);
diff --git a/arch/powerpc/platforms/powernv/smp.c b/arch/powerpc/platforms/powernv/smp.c
index fc34025..38a4508 100644
--- a/arch/powerpc/platforms/powernv/smp.c
+++ b/arch/powerpc/platforms/powernv/smp.c
@@ -33,6 +33,8 @@
 #include <asm/runlatch.h>
 #include <asm/code-patching.h>
 #include <asm/dbell.h>
+#include <asm/kvm_ppc.h>
+#include <asm/ppc-opcode.h>
 
 #include "powernv.h"
 
@@ -149,7 +151,7 @@ static int pnv_smp_cpu_disable(void)
 static void pnv_smp_cpu_kill_self(void)
 {
 	unsigned int cpu;
-	unsigned long srr1;
+	unsigned long srr1, wmask;
 	u32 idle_states;
 
 	/* Standard hot unplug procedure */
@@ -161,6 +163,10 @@ static void pnv_smp_cpu_kill_self(void)
 	generic_set_cpu_dead(cpu);
 	smp_wmb();
 
+	wmask = SRR1_WAKEMASK;
+	if (cpu_has_feature(CPU_FTR_ARCH_207S))
+		wmask = SRR1_WAKEMASK_P8;
+
 	idle_states = pnv_get_supported_cpuidle_states();
 	/* We don't want to take decrementer interrupts while we are offline,
 	 * so clear LPCR:PECE1. We keep PECE2 enabled.
@@ -191,10 +197,14 @@ static void pnv_smp_cpu_kill_self(void)
 		 * having finished executing in a KVM guest, then srr1
 		 * contains 0.
 		 */
-		if ((srr1 & SRR1_WAKEMASK) == SRR1_WAKEEE) {
+		if ((srr1 & wmask) == SRR1_WAKEEE) {
 			icp_native_flush_interrupt();
 			local_paca->irq_happened &= PACA_IRQ_HARD_DIS;
 			smp_mb();
+		} else if ((srr1 & wmask) == SRR1_WAKEHDBELL) {
+			unsigned long msg = PPC_DBELL_TYPE(PPC_DBELL_SERVER);
+			asm volatile(PPC_MSGCLR(%0) : : "r" (msg));
+			kvmppc_set_host_ipi(cpu, 0);
 		}
 
 		if (cpu_core_split_required())
diff --git a/arch/powerpc/platforms/pseries/hvCall.S b/arch/powerpc/platforms/pseries/hvCall.S
index ccd53f9..74b5b8e 100644
--- a/arch/powerpc/platforms/pseries/hvCall.S
+++ b/arch/powerpc/platforms/pseries/hvCall.S
@@ -7,12 +7,12 @@
  * as published by the Free Software Foundation; either version
  * 2 of the License, or (at your option) any later version.
  */
+#include <linux/jump_label.h>
 #include <asm/hvcall.h>
 #include <asm/processor.h>
 #include <asm/ppc_asm.h>
 #include <asm/asm-offsets.h>
 #include <asm/ptrace.h>
-#include <asm/jump_label.h>
 
 	.section	".text"
 	
diff --git a/arch/powerpc/platforms/pseries/iommu.c b/arch/powerpc/platforms/pseries/iommu.c
index 1d3d52d..7803a19 100644
--- a/arch/powerpc/platforms/pseries/iommu.c
+++ b/arch/powerpc/platforms/pseries/iommu.c
@@ -1340,3 +1340,5 @@ static int __init disable_multitce(char *str)
 }
 
 __setup("multitce=", disable_multitce);
+
+machine_subsys_initcall_sync(pseries, tce_iommu_bus_notifier_init);
diff --git a/arch/powerpc/platforms/pseries/lpar.c b/arch/powerpc/platforms/pseries/lpar.c
index b5682fd..b7a67e3 100644
--- a/arch/powerpc/platforms/pseries/lpar.c
+++ b/arch/powerpc/platforms/pseries/lpar.c
@@ -26,7 +26,7 @@
 #include <linux/dma-mapping.h>
 #include <linux/console.h>
 #include <linux/export.h>
-#include <linux/static_key.h>
+#include <linux/jump_label.h>
 #include <asm/processor.h>
 #include <asm/mmu.h>
 #include <asm/page.h>
diff --git a/arch/powerpc/platforms/pseries/mobility.c b/arch/powerpc/platforms/pseries/mobility.c
index 90cf3dc..8f35d52 100644
--- a/arch/powerpc/platforms/pseries/mobility.c
+++ b/arch/powerpc/platforms/pseries/mobility.c
@@ -25,10 +25,10 @@
 static struct kobject *mobility_kobj;
 
 struct update_props_workarea {
-	u32 phandle;
-	u32 state;
-	u64 reserved;
-	u32 nprops;
+	__be32 phandle;
+	__be32 state;
+	__be64 reserved;
+	__be32 nprops;
 } __packed;
 
 #define NODE_ACTION_MASK	0xff000000
@@ -54,11 +54,11 @@ static int mobility_rtas_call(int token, char *buf, s32 scope)
 	return rc;
 }
 
-static int delete_dt_node(u32 phandle)
+static int delete_dt_node(__be32 phandle)
 {
 	struct device_node *dn;
 
-	dn = of_find_node_by_phandle(phandle);
+	dn = of_find_node_by_phandle(be32_to_cpu(phandle));
 	if (!dn)
 		return -ENOENT;
 
@@ -127,7 +127,7 @@ static int update_dt_property(struct device_node *dn, struct property **prop,
 	return 0;
 }
 
-static int update_dt_node(u32 phandle, s32 scope)
+static int update_dt_node(__be32 phandle, s32 scope)
 {
 	struct update_props_workarea *upwa;
 	struct device_node *dn;
@@ -136,6 +136,7 @@ static int update_dt_node(u32 phandle, s32 scope)
 	char *prop_data;
 	char *rtas_buf;
 	int update_properties_token;
+	u32 nprops;
 	u32 vd;
 
 	update_properties_token = rtas_token("ibm,update-properties");
@@ -146,7 +147,7 @@ static int update_dt_node(u32 phandle, s32 scope)
 	if (!rtas_buf)
 		return -ENOMEM;
 
-	dn = of_find_node_by_phandle(phandle);
+	dn = of_find_node_by_phandle(be32_to_cpu(phandle));
 	if (!dn) {
 		kfree(rtas_buf);
 		return -ENOENT;
@@ -162,6 +163,7 @@ static int update_dt_node(u32 phandle, s32 scope)
 			break;
 
 		prop_data = rtas_buf + sizeof(*upwa);
+		nprops = be32_to_cpu(upwa->nprops);
 
 		/* On the first call to ibm,update-properties for a node the
 		 * the first property value descriptor contains an empty
@@ -170,17 +172,17 @@ static int update_dt_node(u32 phandle, s32 scope)
 		 */
 		if (*prop_data == 0) {
 			prop_data++;
-			vd = *(u32 *)prop_data;
+			vd = be32_to_cpu(*(__be32 *)prop_data);
 			prop_data += vd + sizeof(vd);
-			upwa->nprops--;
+			nprops--;
 		}
 
-		for (i = 0; i < upwa->nprops; i++) {
+		for (i = 0; i < nprops; i++) {
 			char *prop_name;
 
 			prop_name = prop_data;
 			prop_data += strlen(prop_name) + 1;
-			vd = *(u32 *)prop_data;
+			vd = be32_to_cpu(*(__be32 *)prop_data);
 			prop_data += sizeof(vd);
 
 			switch (vd) {
@@ -212,13 +214,13 @@ static int update_dt_node(u32 phandle, s32 scope)
 	return 0;
 }
 
-static int add_dt_node(u32 parent_phandle, u32 drc_index)
+static int add_dt_node(__be32 parent_phandle, __be32 drc_index)
 {
 	struct device_node *dn;
 	struct device_node *parent_dn;
 	int rc;
 
-	parent_dn = of_find_node_by_phandle(parent_phandle);
+	parent_dn = of_find_node_by_phandle(be32_to_cpu(parent_phandle));
 	if (!parent_dn)
 		return -ENOENT;
 
@@ -237,7 +239,7 @@ static int add_dt_node(u32 parent_phandle, u32 drc_index)
 int pseries_devicetree_update(s32 scope)
 {
 	char *rtas_buf;
-	u32 *data;
+	__be32 *data;
 	int update_nodes_token;
 	int rc;
 
@@ -254,17 +256,17 @@ int pseries_devicetree_update(s32 scope)
 		if (rc && rc != 1)
 			break;
 
-		data = (u32 *)rtas_buf + 4;
-		while (*data & NODE_ACTION_MASK) {
+		data = (__be32 *)rtas_buf + 4;
+		while (be32_to_cpu(*data) & NODE_ACTION_MASK) {
 			int i;
-			u32 action = *data & NODE_ACTION_MASK;
-			int node_count = *data & NODE_COUNT_MASK;
+			u32 action = be32_to_cpu(*data) & NODE_ACTION_MASK;
+			u32 node_count = be32_to_cpu(*data) & NODE_COUNT_MASK;
 
 			data++;
 
 			for (i = 0; i < node_count; i++) {
-				u32 phandle = *data++;
-				u32 drc_index;
+				__be32 phandle = *data++;
+				__be32 drc_index;
 
 				switch (action) {
 				case DELETE_DT_NODE:
diff --git a/arch/s390/include/asm/elf.h b/arch/s390/include/asm/elf.h
index c9df40b..c9c875d 100644
--- a/arch/s390/include/asm/elf.h
+++ b/arch/s390/include/asm/elf.h
@@ -211,7 +211,7 @@ do {								\
 
 extern unsigned long mmap_rnd_mask;
 
-#define STACK_RND_MASK	(mmap_rnd_mask)
+#define STACK_RND_MASK	(test_thread_flag(TIF_31BIT) ? 0x7ff : mmap_rnd_mask)
 
 #define ARCH_DLINFO							    \
 do {									    \
diff --git a/arch/s390/include/asm/jump_label.h b/arch/s390/include/asm/jump_label.h
index 58642fd..2b77e23 100644
--- a/arch/s390/include/asm/jump_label.h
+++ b/arch/s390/include/asm/jump_label.h
@@ -1,6 +1,8 @@
 #ifndef _ASM_S390_JUMP_LABEL_H
 #define _ASM_S390_JUMP_LABEL_H
 
+#ifndef __ASSEMBLY__
+
 #include <linux/types.h>
 
 #define JUMP_LABEL_NOP_SIZE 6
@@ -39,4 +41,5 @@ struct jump_entry {
 	jump_label_t key;
 };
 
+#endif  /* __ASSEMBLY__ */
 #endif
diff --git a/arch/s390/include/asm/kvm_host.h b/arch/s390/include/asm/kvm_host.h
index d84559e..d01fc58 100644
--- a/arch/s390/include/asm/kvm_host.h
+++ b/arch/s390/include/asm/kvm_host.h
@@ -172,7 +172,9 @@ struct kvm_s390_sie_block {
 	__u32	fac;			/* 0x01a0 */
 	__u8	reserved1a4[20];	/* 0x01a4 */
 	__u64	cbrlo;			/* 0x01b8 */
-	__u8	reserved1c0[30];	/* 0x01c0 */
+	__u8	reserved1c0[8];		/* 0x01c0 */
+	__u32	ecd;			/* 0x01c8 */
+	__u8	reserved1cc[18];	/* 0x01cc */
 	__u64	pp;			/* 0x01de */
 	__u8	reserved1e6[2];		/* 0x01e6 */
 	__u64	itdba;			/* 0x01e8 */
@@ -183,11 +185,17 @@ struct kvm_s390_itdb {
 	__u8	data[256];
 } __packed;
 
+struct kvm_s390_vregs {
+	__vector128 vrs[32];
+	__u8	reserved200[512];	/* for future vector expansion */
+} __packed;
+
 struct sie_page {
 	struct kvm_s390_sie_block sie_block;
 	__u8 reserved200[1024];		/* 0x0200 */
 	struct kvm_s390_itdb itdb;	/* 0x0600 */
-	__u8 reserved700[2304];		/* 0x0700 */
+	__u8 reserved700[1280];		/* 0x0700 */
+	struct kvm_s390_vregs vregs;	/* 0x0c00 */
 } __packed;
 
 struct kvm_vcpu_stat {
@@ -238,6 +246,7 @@ struct kvm_vcpu_stat {
 	u32 instruction_sigp_stop;
 	u32 instruction_sigp_stop_store_status;
 	u32 instruction_sigp_store_status;
+	u32 instruction_sigp_store_adtl_status;
 	u32 instruction_sigp_arch;
 	u32 instruction_sigp_prefix;
 	u32 instruction_sigp_restart;
@@ -270,6 +279,7 @@ struct kvm_vcpu_stat {
 #define PGM_SPECIAL_OPERATION		0x13
 #define PGM_OPERAND			0x15
 #define PGM_TRACE_TABEL			0x16
+#define PGM_VECTOR_PROCESSING		0x1b
 #define PGM_SPACE_SWITCH		0x1c
 #define PGM_HFP_SQUARE_ROOT		0x1d
 #define PGM_PC_TRANSLATION_SPEC		0x1f
@@ -334,6 +344,11 @@ enum irq_types {
 	IRQ_PEND_COUNT
 };
 
+/* We have 2M for virtio device descriptor pages. Smallest amount of
+ * memory per page is 24 bytes (1 queue), so (2048*1024) / 24 = 87381
+ */
+#define KVM_S390_MAX_VIRTIO_IRQS 87381
+
 /*
  * Repressible (non-floating) machine check interrupts
  * subclass bits in MCIC
@@ -411,13 +426,32 @@ struct kvm_s390_local_interrupt {
 	unsigned long pending_irqs;
 };
 
+#define FIRQ_LIST_IO_ISC_0 0
+#define FIRQ_LIST_IO_ISC_1 1
+#define FIRQ_LIST_IO_ISC_2 2
+#define FIRQ_LIST_IO_ISC_3 3
+#define FIRQ_LIST_IO_ISC_4 4
+#define FIRQ_LIST_IO_ISC_5 5
+#define FIRQ_LIST_IO_ISC_6 6
+#define FIRQ_LIST_IO_ISC_7 7
+#define FIRQ_LIST_PFAULT   8
+#define FIRQ_LIST_VIRTIO   9
+#define FIRQ_LIST_COUNT   10
+#define FIRQ_CNTR_IO       0
+#define FIRQ_CNTR_SERVICE  1
+#define FIRQ_CNTR_VIRTIO   2
+#define FIRQ_CNTR_PFAULT   3
+#define FIRQ_MAX_COUNT     4
+
 struct kvm_s390_float_interrupt {
+	unsigned long pending_irqs;
 	spinlock_t lock;
-	struct list_head list;
-	atomic_t active;
+	struct list_head lists[FIRQ_LIST_COUNT];
+	int counters[FIRQ_MAX_COUNT];
+	struct kvm_s390_mchk_info mchk;
+	struct kvm_s390_ext_info srv_signal;
 	int next_rr_cpu;
 	unsigned long idle_mask[BITS_TO_LONGS(KVM_MAX_VCPUS)];
-	unsigned int irq_count;
 };
 
 struct kvm_hw_wp_info_arch {
@@ -465,6 +499,7 @@ struct kvm_vcpu_arch {
 	s390_fp_regs      host_fpregs;
 	unsigned int      host_acrs[NUM_ACRS];
 	s390_fp_regs      guest_fpregs;
+	struct kvm_s390_vregs	*host_vregs;
 	struct kvm_s390_local_interrupt local_int;
 	struct hrtimer    ckc_timer;
 	struct kvm_s390_pgm_info pgm;
@@ -515,15 +550,15 @@ struct s390_io_adapter {
 #define S390_ARCH_FAC_MASK_SIZE_U64 \
 	(S390_ARCH_FAC_MASK_SIZE_BYTE / sizeof(u64))
 
-struct s390_model_fac {
-	/* facilities used in SIE context */
-	__u64 sie[S390_ARCH_FAC_LIST_SIZE_U64];
-	/* subset enabled by kvm */
-	__u64 kvm[S390_ARCH_FAC_LIST_SIZE_U64];
+struct kvm_s390_fac {
+	/* facility list requested by guest */
+	__u64 list[S390_ARCH_FAC_LIST_SIZE_U64];
+	/* facility mask supported by kvm & hosting machine */
+	__u64 mask[S390_ARCH_FAC_LIST_SIZE_U64];
 };
 
 struct kvm_s390_cpu_model {
-	struct s390_model_fac *fac;
+	struct kvm_s390_fac *fac;
 	struct cpuid cpu_id;
 	unsigned short ibc;
 };
@@ -553,6 +588,7 @@ struct kvm_arch{
 	int use_cmma;
 	int user_cpu_state_ctrl;
 	int user_sigp;
+	int user_stsi;
 	struct s390_io_adapter *adapters[MAX_S390_IO_ADAPTERS];
 	wait_queue_head_t ipte_wq;
 	int ipte_lock_count;
diff --git a/arch/s390/include/asm/mmu_context.h b/arch/s390/include/asm/mmu_context.h
index f49b719..8fb3802 100644
--- a/arch/s390/include/asm/mmu_context.h
+++ b/arch/s390/include/asm/mmu_context.h
@@ -62,6 +62,7 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
 {
 	int cpu = smp_processor_id();
 
+	S390_lowcore.user_asce = next->context.asce_bits | __pa(next->pgd);
 	if (prev == next)
 		return;
 	if (MACHINE_HAS_TLB_LC)
@@ -73,7 +74,6 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
 	atomic_dec(&prev->context.attach_count);
 	if (MACHINE_HAS_TLB_LC)
 		cpumask_clear_cpu(cpu, &prev->context.cpu_attach_mask);
-	S390_lowcore.user_asce = next->context.asce_bits | __pa(next->pgd);
 }
 
 #define finish_arch_post_lock_switch finish_arch_post_lock_switch
diff --git a/arch/s390/include/asm/page.h b/arch/s390/include/asm/page.h
index 7b2ac6e..53eacbd 100644
--- a/arch/s390/include/asm/page.h
+++ b/arch/s390/include/asm/page.h
@@ -37,16 +37,7 @@ static inline void storage_key_init_range(unsigned long start, unsigned long end
 #endif
 }
 
-static inline void clear_page(void *page)
-{
-	register unsigned long reg1 asm ("1") = 0;
-	register void *reg2 asm ("2") = page;
-	register unsigned long reg3 asm ("3") = 4096;
-	asm volatile(
-		"	mvcl	2,0"
-		: "+d" (reg2), "+d" (reg3) : "d" (reg1)
-		: "memory", "cc");
-}
+#define clear_page(page)	memset((page), 0, PAGE_SIZE)
 
 /*
  * copy_page uses the mvcl instruction with 0xb0 padding byte in order to
diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h
index fbb5ee3..e08ec38 100644
--- a/arch/s390/include/asm/pgtable.h
+++ b/arch/s390/include/asm/pgtable.h
@@ -91,7 +91,9 @@ extern unsigned long zero_page_mask;
  */
 #define PTRS_PER_PTE	256
 #ifndef CONFIG_64BIT
+#define __PAGETABLE_PUD_FOLDED
 #define PTRS_PER_PMD	1
+#define __PAGETABLE_PMD_FOLDED
 #define PTRS_PER_PUD	1
 #else /* CONFIG_64BIT */
 #define PTRS_PER_PMD	2048
diff --git a/arch/s390/include/uapi/asm/kvm.h b/arch/s390/include/uapi/asm/kvm.h
index 9c77e60..ef1a5fc 100644
--- a/arch/s390/include/uapi/asm/kvm.h
+++ b/arch/s390/include/uapi/asm/kvm.h
@@ -150,6 +150,7 @@ struct kvm_guest_debug_arch {
 #define KVM_SYNC_CRS    (1UL << 3)
 #define KVM_SYNC_ARCH0  (1UL << 4)
 #define KVM_SYNC_PFAULT (1UL << 5)
+#define KVM_SYNC_VRS    (1UL << 6)
 /* definition of registers in kvm_run */
 struct kvm_sync_regs {
 	__u64 prefix;	/* prefix register */
@@ -164,6 +165,9 @@ struct kvm_sync_regs {
 	__u64 pft;	/* pfault token [PFAULT] */
 	__u64 pfs;	/* pfault select [PFAULT] */
 	__u64 pfc;	/* pfault compare [PFAULT] */
+	__u64 vrs[32][2];	/* vector registers */
+	__u8  reserved[512];	/* for future vector expansion */
+	__u32 fpc;	/* only valid with vector registers */
 };
 
 #define KVM_REG_S390_TODPR	(KVM_REG_S390 | KVM_REG_SIZE_U32 | 0x1)
diff --git a/arch/s390/include/uapi/asm/sie.h b/arch/s390/include/uapi/asm/sie.h
index d4096fd..ee69c08 100644
--- a/arch/s390/include/uapi/asm/sie.h
+++ b/arch/s390/include/uapi/asm/sie.h
@@ -230,7 +230,7 @@
  * and returns a key, which can be used to find a mnemonic name
  * of the instruction in the icpt_insn_codes table.
  */
-#define icpt_insn_decoder(insn)			\
+#define icpt_insn_decoder(insn) (		\
 	INSN_DECODE_IPA0(0x01, insn, 48, 0xff)	\
 	INSN_DECODE_IPA0(0xaa, insn, 48, 0x0f)	\
 	INSN_DECODE_IPA0(0xb2, insn, 48, 0xff)	\
@@ -239,6 +239,6 @@
 	INSN_DECODE_IPA0(0xe5, insn, 48, 0xff)	\
 	INSN_DECODE_IPA0(0xeb, insn, 16, 0xff)	\
 	INSN_DECODE_IPA0(0xc8, insn, 48, 0x0f)	\
-	INSN_DECODE(insn)
+	INSN_DECODE(insn))
 
 #endif /* _UAPI_ASM_S390_SIE_H */
diff --git a/arch/s390/kernel/asm-offsets.c b/arch/s390/kernel/asm-offsets.c
index e07e9160..8dc4db1 100644
--- a/arch/s390/kernel/asm-offsets.c
+++ b/arch/s390/kernel/asm-offsets.c
@@ -171,6 +171,7 @@ int main(void)
 #else /* CONFIG_32BIT */
 	DEFINE(__LC_DATA_EXC_CODE, offsetof(struct _lowcore, data_exc_code));
 	DEFINE(__LC_MCCK_FAIL_STOR_ADDR, offsetof(struct _lowcore, failing_storage_address));
+	DEFINE(__LC_VX_SAVE_AREA_ADDR, offsetof(struct _lowcore, vector_save_area_addr));
 	DEFINE(__LC_EXT_PARAMS2, offsetof(struct _lowcore, ext_params2));
 	DEFINE(SAVE_AREA_BASE, offsetof(struct _lowcore, floating_pt_save_area));
 	DEFINE(__LC_PASTE, offsetof(struct _lowcore, paste));
diff --git a/arch/s390/kernel/ftrace.c b/arch/s390/kernel/ftrace.c
index 82c1989..6c79f1b 100644
--- a/arch/s390/kernel/ftrace.c
+++ b/arch/s390/kernel/ftrace.c
@@ -57,6 +57,44 @@
 
 unsigned long ftrace_plt;
 
+static inline void ftrace_generate_orig_insn(struct ftrace_insn *insn)
+{
+#ifdef CC_USING_HOTPATCH
+	/* brcl 0,0 */
+	insn->opc = 0xc004;
+	insn->disp = 0;
+#else
+	/* stg r14,8(r15) */
+	insn->opc = 0xe3e0;
+	insn->disp = 0xf0080024;
+#endif
+}
+
+static inline int is_kprobe_on_ftrace(struct ftrace_insn *insn)
+{
+#ifdef CONFIG_KPROBES
+	if (insn->opc == BREAKPOINT_INSTRUCTION)
+		return 1;
+#endif
+	return 0;
+}
+
+static inline void ftrace_generate_kprobe_nop_insn(struct ftrace_insn *insn)
+{
+#ifdef CONFIG_KPROBES
+	insn->opc = BREAKPOINT_INSTRUCTION;
+	insn->disp = KPROBE_ON_FTRACE_NOP;
+#endif
+}
+
+static inline void ftrace_generate_kprobe_call_insn(struct ftrace_insn *insn)
+{
+#ifdef CONFIG_KPROBES
+	insn->opc = BREAKPOINT_INSTRUCTION;
+	insn->disp = KPROBE_ON_FTRACE_CALL;
+#endif
+}
+
 int ftrace_modify_call(struct dyn_ftrace *rec, unsigned long old_addr,
 		       unsigned long addr)
 {
@@ -72,16 +110,9 @@ int ftrace_make_nop(struct module *mod, struct dyn_ftrace *rec,
 		return -EFAULT;
 	if (addr == MCOUNT_ADDR) {
 		/* Initial code replacement */
-#ifdef CC_USING_HOTPATCH
-		/* We expect to see brcl 0,0 */
-		ftrace_generate_nop_insn(&orig);
-#else
-		/* We expect to see stg r14,8(r15) */
-		orig.opc = 0xe3e0;
-		orig.disp = 0xf0080024;
-#endif
+		ftrace_generate_orig_insn(&orig);
 		ftrace_generate_nop_insn(&new);
-	} else if (old.opc == BREAKPOINT_INSTRUCTION) {
+	} else if (is_kprobe_on_ftrace(&old)) {
 		/*
 		 * If we find a breakpoint instruction, a kprobe has been
 		 * placed at the beginning of the function. We write the
@@ -89,9 +120,8 @@ int ftrace_make_nop(struct module *mod, struct dyn_ftrace *rec,
 		 * bytes of the original instruction so that the kprobes
 		 * handler can execute a nop, if it reaches this breakpoint.
 		 */
-		new.opc = orig.opc = BREAKPOINT_INSTRUCTION;
-		orig.disp = KPROBE_ON_FTRACE_CALL;
-		new.disp = KPROBE_ON_FTRACE_NOP;
+		ftrace_generate_kprobe_call_insn(&orig);
+		ftrace_generate_kprobe_nop_insn(&new);
 	} else {
 		/* Replace ftrace call with a nop. */
 		ftrace_generate_call_insn(&orig, rec->ip);
@@ -111,7 +141,7 @@ int ftrace_make_call(struct dyn_ftrace *rec, unsigned long addr)
 
 	if (probe_kernel_read(&old, (void *) rec->ip, sizeof(old)))
 		return -EFAULT;
-	if (old.opc == BREAKPOINT_INSTRUCTION) {
+	if (is_kprobe_on_ftrace(&old)) {
 		/*
 		 * If we find a breakpoint instruction, a kprobe has been
 		 * placed at the beginning of the function. We write the
@@ -119,9 +149,8 @@ int ftrace_make_call(struct dyn_ftrace *rec, unsigned long addr)
 		 * bytes of the original instruction so that the kprobes
 		 * handler can execute a brasl if it reaches this breakpoint.
 		 */
-		new.opc = orig.opc = BREAKPOINT_INSTRUCTION;
-		orig.disp = KPROBE_ON_FTRACE_NOP;
-		new.disp = KPROBE_ON_FTRACE_CALL;
+		ftrace_generate_kprobe_nop_insn(&orig);
+		ftrace_generate_kprobe_call_insn(&new);
 	} else {
 		/* Replace nop with an ftrace call. */
 		ftrace_generate_nop_insn(&orig);
diff --git a/arch/s390/kernel/jump_label.c b/arch/s390/kernel/jump_label.c
index cb2d51e..830066f 100644
--- a/arch/s390/kernel/jump_label.c
+++ b/arch/s390/kernel/jump_label.c
@@ -36,16 +36,20 @@ static void jump_label_make_branch(struct jump_entry *entry, struct insn *insn)
 	insn->offset = (entry->target - entry->code) >> 1;
 }
 
-static void jump_label_bug(struct jump_entry *entry, struct insn *insn)
+static void jump_label_bug(struct jump_entry *entry, struct insn *expected,
+			   struct insn *new)
 {
 	unsigned char *ipc = (unsigned char *)entry->code;
-	unsigned char *ipe = (unsigned char *)insn;
+	unsigned char *ipe = (unsigned char *)expected;
+	unsigned char *ipn = (unsigned char *)new;
 
 	pr_emerg("Jump label code mismatch at %pS [%p]\n", ipc, ipc);
 	pr_emerg("Found:    %02x %02x %02x %02x %02x %02x\n",
 		 ipc[0], ipc[1], ipc[2], ipc[3], ipc[4], ipc[5]);
 	pr_emerg("Expected: %02x %02x %02x %02x %02x %02x\n",
 		 ipe[0], ipe[1], ipe[2], ipe[3], ipe[4], ipe[5]);
+	pr_emerg("New:      %02x %02x %02x %02x %02x %02x\n",
+		 ipn[0], ipn[1], ipn[2], ipn[3], ipn[4], ipn[5]);
 	panic("Corrupted kernel text");
 }
 
@@ -69,10 +73,10 @@ static void __jump_label_transform(struct jump_entry *entry,
 	}
 	if (init) {
 		if (memcmp((void *)entry->code, &orignop, sizeof(orignop)))
-			jump_label_bug(entry, &old);
+			jump_label_bug(entry, &orignop, &new);
 	} else {
 		if (memcmp((void *)entry->code, &old, sizeof(old)))
-			jump_label_bug(entry, &old);
+			jump_label_bug(entry, &old, &new);
 	}
 	probe_kernel_write((void *)entry->code, &new, sizeof(new));
 }
diff --git a/arch/s390/kernel/module.c b/arch/s390/kernel/module.c
index 36154a2..2ca9586 100644
--- a/arch/s390/kernel/module.c
+++ b/arch/s390/kernel/module.c
@@ -436,6 +436,7 @@ int module_finalize(const Elf_Ehdr *hdr,
 		    const Elf_Shdr *sechdrs,
 		    struct module *me)
 {
+	jump_label_apply_nops(me);
 	vfree(me->arch.syminfo);
 	me->arch.syminfo = NULL;
 	return 0;
diff --git a/arch/s390/kernel/perf_cpum_sf.c b/arch/s390/kernel/perf_cpum_sf.c
index c3f8d15..e6a1578 100644
--- a/arch/s390/kernel/perf_cpum_sf.c
+++ b/arch/s390/kernel/perf_cpum_sf.c
@@ -1415,7 +1415,7 @@ CPUMF_EVENT_ATTR(SF, SF_CYCLES_BASIC_DIAG, PERF_EVENT_CPUM_SF_DIAG);
 
 static struct attribute *cpumsf_pmu_events_attr[] = {
 	CPUMF_EVENT_PTR(SF, SF_CYCLES_BASIC),
-	CPUMF_EVENT_PTR(SF, SF_CYCLES_BASIC_DIAG),
+	NULL,
 	NULL,
 };
 
@@ -1606,8 +1606,11 @@ static int __init init_cpum_sampling_pmu(void)
 		return -EINVAL;
 	}
 
-	if (si.ad)
+	if (si.ad) {
 		sfb_set_limits(CPUM_SF_MIN_SDB, CPUM_SF_MAX_SDB);
+		cpumsf_pmu_events_attr[1] =
+			CPUMF_EVENT_PTR(SF, SF_CYCLES_BASIC_DIAG);
+	}
 
 	sfdbg = debug_register(KMSG_COMPONENT, 2, 1, 80);
 	if (!sfdbg)
diff --git a/arch/s390/kernel/processor.c b/arch/s390/kernel/processor.c
index 2610823..dc488e1 100644
--- a/arch/s390/kernel/processor.c
+++ b/arch/s390/kernel/processor.c
@@ -18,7 +18,7 @@
 
 static DEFINE_PER_CPU(struct cpuid, cpu_id);
 
-void cpu_relax(void)
+void notrace cpu_relax(void)
 {
 	if (!smp_cpu_mtid && MACHINE_HAS_DIAG44)
 		asm volatile("diag 0,0,0x44");
diff --git a/arch/s390/kernel/swsusp_asm64.S b/arch/s390/kernel/swsusp_asm64.S
index 6b09fdf..ca62946 100644
--- a/arch/s390/kernel/swsusp_asm64.S
+++ b/arch/s390/kernel/swsusp_asm64.S
@@ -177,6 +177,17 @@ restart_entry:
 	lhi	%r1,1
 	sigp	%r1,%r0,SIGP_SET_ARCHITECTURE
 	sam64
+#ifdef CONFIG_SMP
+	larl	%r1,smp_cpu_mt_shift
+	icm	%r1,15,0(%r1)
+	jz	smt_done
+	llgfr	%r1,%r1
+smt_loop:
+	sigp	%r1,%r0,SIGP_SET_MULTI_THREADING
+	brc	8,smt_done			/* accepted */
+	brc	2,smt_loop			/* busy, try again */
+smt_done:
+#endif
 	larl	%r1,.Lnew_pgm_check_psw
 	lpswe	0(%r1)
 pgm_check_entry:
diff --git a/arch/s390/kernel/time.c b/arch/s390/kernel/time.c
index 20660dd..170ddd2 100644
--- a/arch/s390/kernel/time.c
+++ b/arch/s390/kernel/time.c
@@ -215,20 +215,20 @@ void update_vsyscall(struct timekeeper *tk)
 {
 	u64 nsecps;
 
-	if (tk->tkr.clock != &clocksource_tod)
+	if (tk->tkr_mono.clock != &clocksource_tod)
 		return;
 
 	/* Make userspace gettimeofday spin until we're done. */
 	++vdso_data->tb_update_count;
 	smp_wmb();
-	vdso_data->xtime_tod_stamp = tk->tkr.cycle_last;
+	vdso_data->xtime_tod_stamp = tk->tkr_mono.cycle_last;
 	vdso_data->xtime_clock_sec = tk->xtime_sec;
-	vdso_data->xtime_clock_nsec = tk->tkr.xtime_nsec;
+	vdso_data->xtime_clock_nsec = tk->tkr_mono.xtime_nsec;
 	vdso_data->wtom_clock_sec =
 		tk->xtime_sec + tk->wall_to_monotonic.tv_sec;
-	vdso_data->wtom_clock_nsec = tk->tkr.xtime_nsec +
-		+ ((u64) tk->wall_to_monotonic.tv_nsec << tk->tkr.shift);
-	nsecps = (u64) NSEC_PER_SEC << tk->tkr.shift;
+	vdso_data->wtom_clock_nsec = tk->tkr_mono.xtime_nsec +
+		+ ((u64) tk->wall_to_monotonic.tv_nsec << tk->tkr_mono.shift);
+	nsecps = (u64) NSEC_PER_SEC << tk->tkr_mono.shift;
 	while (vdso_data->wtom_clock_nsec >= nsecps) {
 		vdso_data->wtom_clock_nsec -= nsecps;
 		vdso_data->wtom_clock_sec++;
@@ -236,7 +236,7 @@ void update_vsyscall(struct timekeeper *tk)
 
 	vdso_data->xtime_coarse_sec = tk->xtime_sec;
 	vdso_data->xtime_coarse_nsec =
-		(long)(tk->tkr.xtime_nsec >> tk->tkr.shift);
+		(long)(tk->tkr_mono.xtime_nsec >> tk->tkr_mono.shift);
 	vdso_data->wtom_coarse_sec =
 		vdso_data->xtime_coarse_sec + tk->wall_to_monotonic.tv_sec;
 	vdso_data->wtom_coarse_nsec =
@@ -246,8 +246,8 @@ void update_vsyscall(struct timekeeper *tk)
 		vdso_data->wtom_coarse_sec++;
 	}
 
-	vdso_data->tk_mult = tk->tkr.mult;
-	vdso_data->tk_shift = tk->tkr.shift;
+	vdso_data->tk_mult = tk->tkr_mono.mult;
+	vdso_data->tk_shift = tk->tkr_mono.shift;
 	smp_wmb();
 	++vdso_data->tb_update_count;
 }
@@ -283,7 +283,7 @@ void __init time_init(void)
 	if (register_external_irq(EXT_IRQ_TIMING_ALERT, timing_alert_interrupt))
 		panic("Couldn't request external interrupt 0x1406");
 
-	if (clocksource_register(&clocksource_tod) != 0)
+	if (__clocksource_register(&clocksource_tod) != 0)
 		panic("Could not register TOD clock source");
 
 	/* Enable TOD clock interrupts on the boot cpu. */
diff --git a/arch/s390/kvm/diag.c b/arch/s390/kvm/diag.c
index 9254aff..fc7ec95 100644
--- a/arch/s390/kvm/diag.c
+++ b/arch/s390/kvm/diag.c
@@ -77,7 +77,7 @@ static int __diag_page_ref_service(struct kvm_vcpu *vcpu)
 
 	if (vcpu->run->s.regs.gprs[rx] & 7)
 		return kvm_s390_inject_program_int(vcpu, PGM_SPECIFICATION);
-	rc = read_guest(vcpu, vcpu->run->s.regs.gprs[rx], &parm, sizeof(parm));
+	rc = read_guest(vcpu, vcpu->run->s.regs.gprs[rx], rx, &parm, sizeof(parm));
 	if (rc)
 		return kvm_s390_inject_prog_cond(vcpu, rc);
 	if (parm.parm_version != 2 || parm.parm_len < 5 || parm.code != 0x258)
@@ -213,7 +213,7 @@ static int __diag_virtio_hypercall(struct kvm_vcpu *vcpu)
 	 * - gpr 3 contains the virtqueue index (passed as datamatch)
 	 * - gpr 4 contains the index on the bus (optionally)
 	 */
-	ret = kvm_io_bus_write_cookie(vcpu->kvm, KVM_VIRTIO_CCW_NOTIFY_BUS,
+	ret = kvm_io_bus_write_cookie(vcpu, KVM_VIRTIO_CCW_NOTIFY_BUS,
 				      vcpu->run->s.regs.gprs[2] & 0xffffffff,
 				      8, &vcpu->run->s.regs.gprs[3],
 				      vcpu->run->s.regs.gprs[4]);
@@ -230,7 +230,7 @@ static int __diag_virtio_hypercall(struct kvm_vcpu *vcpu)
 
 int kvm_s390_handle_diag(struct kvm_vcpu *vcpu)
 {
-	int code = kvm_s390_get_base_disp_rs(vcpu) & 0xffff;
+	int code = kvm_s390_get_base_disp_rs(vcpu, NULL) & 0xffff;
 
 	if (vcpu->arch.sie_block->gpsw.mask & PSW_MASK_PSTATE)
 		return kvm_s390_inject_program_int(vcpu, PGM_PRIVILEGED_OP);
diff --git a/arch/s390/kvm/gaccess.c b/arch/s390/kvm/gaccess.c
index 267523c..a7559f7 100644
--- a/arch/s390/kvm/gaccess.c
+++ b/arch/s390/kvm/gaccess.c
@@ -10,6 +10,7 @@
 #include <asm/pgtable.h>
 #include "kvm-s390.h"
 #include "gaccess.h"
+#include <asm/switch_to.h>
 
 union asce {
 	unsigned long val;
@@ -207,6 +208,54 @@ union raddress {
 	unsigned long pfra : 52; /* Page-Frame Real Address */
 };
 
+union alet {
+	u32 val;
+	struct {
+		u32 reserved : 7;
+		u32 p        : 1;
+		u32 alesn    : 8;
+		u32 alen     : 16;
+	};
+};
+
+union ald {
+	u32 val;
+	struct {
+		u32     : 1;
+		u32 alo : 24;
+		u32 all : 7;
+	};
+};
+
+struct ale {
+	unsigned long i      : 1; /* ALEN-Invalid Bit */
+	unsigned long        : 5;
+	unsigned long fo     : 1; /* Fetch-Only Bit */
+	unsigned long p      : 1; /* Private Bit */
+	unsigned long alesn  : 8; /* Access-List-Entry Sequence Number */
+	unsigned long aleax  : 16; /* Access-List-Entry Authorization Index */
+	unsigned long        : 32;
+	unsigned long        : 1;
+	unsigned long asteo  : 25; /* ASN-Second-Table-Entry Origin */
+	unsigned long        : 6;
+	unsigned long astesn : 32; /* ASTE Sequence Number */
+} __packed;
+
+struct aste {
+	unsigned long i      : 1; /* ASX-Invalid Bit */
+	unsigned long ato    : 29; /* Authority-Table Origin */
+	unsigned long        : 1;
+	unsigned long b      : 1; /* Base-Space Bit */
+	unsigned long ax     : 16; /* Authorization Index */
+	unsigned long atl    : 12; /* Authority-Table Length */
+	unsigned long        : 2;
+	unsigned long ca     : 1; /* Controlled-ASN Bit */
+	unsigned long ra     : 1; /* Reusable-ASN Bit */
+	unsigned long asce   : 64; /* Address-Space-Control Element */
+	unsigned long ald    : 32;
+	unsigned long astesn : 32;
+	/* .. more fields there */
+} __packed;
 
 int ipte_lock_held(struct kvm_vcpu *vcpu)
 {
@@ -307,15 +356,157 @@ void ipte_unlock(struct kvm_vcpu *vcpu)
 		ipte_unlock_simple(vcpu);
 }
 
-static unsigned long get_vcpu_asce(struct kvm_vcpu *vcpu)
+static int ar_translation(struct kvm_vcpu *vcpu, union asce *asce, ar_t ar,
+			  int write)
+{
+	union alet alet;
+	struct ale ale;
+	struct aste aste;
+	unsigned long ald_addr, authority_table_addr;
+	union ald ald;
+	int eax, rc;
+	u8 authority_table;
+
+	if (ar >= NUM_ACRS)
+		return -EINVAL;
+
+	save_access_regs(vcpu->run->s.regs.acrs);
+	alet.val = vcpu->run->s.regs.acrs[ar];
+
+	if (ar == 0 || alet.val == 0) {
+		asce->val = vcpu->arch.sie_block->gcr[1];
+		return 0;
+	} else if (alet.val == 1) {
+		asce->val = vcpu->arch.sie_block->gcr[7];
+		return 0;
+	}
+
+	if (alet.reserved)
+		return PGM_ALET_SPECIFICATION;
+
+	if (alet.p)
+		ald_addr = vcpu->arch.sie_block->gcr[5];
+	else
+		ald_addr = vcpu->arch.sie_block->gcr[2];
+	ald_addr &= 0x7fffffc0;
+
+	rc = read_guest_real(vcpu, ald_addr + 16, &ald.val, sizeof(union ald));
+	if (rc)
+		return rc;
+
+	if (alet.alen / 8 > ald.all)
+		return PGM_ALEN_TRANSLATION;
+
+	if (0x7fffffff - ald.alo * 128 < alet.alen * 16)
+		return PGM_ADDRESSING;
+
+	rc = read_guest_real(vcpu, ald.alo * 128 + alet.alen * 16, &ale,
+			     sizeof(struct ale));
+	if (rc)
+		return rc;
+
+	if (ale.i == 1)
+		return PGM_ALEN_TRANSLATION;
+	if (ale.alesn != alet.alesn)
+		return PGM_ALE_SEQUENCE;
+
+	rc = read_guest_real(vcpu, ale.asteo * 64, &aste, sizeof(struct aste));
+	if (rc)
+		return rc;
+
+	if (aste.i)
+		return PGM_ASTE_VALIDITY;
+	if (aste.astesn != ale.astesn)
+		return PGM_ASTE_SEQUENCE;
+
+	if (ale.p == 1) {
+		eax = (vcpu->arch.sie_block->gcr[8] >> 16) & 0xffff;
+		if (ale.aleax != eax) {
+			if (eax / 16 > aste.atl)
+				return PGM_EXTENDED_AUTHORITY;
+
+			authority_table_addr = aste.ato * 4 + eax / 4;
+
+			rc = read_guest_real(vcpu, authority_table_addr,
+					     &authority_table,
+					     sizeof(u8));
+			if (rc)
+				return rc;
+
+			if ((authority_table & (0x40 >> ((eax & 3) * 2))) == 0)
+				return PGM_EXTENDED_AUTHORITY;
+		}
+	}
+
+	if (ale.fo == 1 && write)
+		return PGM_PROTECTION;
+
+	asce->val = aste.asce;
+	return 0;
+}
+
+struct trans_exc_code_bits {
+	unsigned long addr : 52; /* Translation-exception Address */
+	unsigned long fsi  : 2;  /* Access Exception Fetch/Store Indication */
+	unsigned long	   : 6;
+	unsigned long b60  : 1;
+	unsigned long b61  : 1;
+	unsigned long as   : 2;  /* ASCE Identifier */
+};
+
+enum {
+	FSI_UNKNOWN = 0, /* Unknown wether fetch or store */
+	FSI_STORE   = 1, /* Exception was due to store operation */
+	FSI_FETCH   = 2  /* Exception was due to fetch operation */
+};
+
+static int get_vcpu_asce(struct kvm_vcpu *vcpu, union asce *asce,
+			 ar_t ar, int write)
 {
+	int rc;
+	psw_t *psw = &vcpu->arch.sie_block->gpsw;
+	struct kvm_s390_pgm_info *pgm = &vcpu->arch.pgm;
+	struct trans_exc_code_bits *tec_bits;
+
+	memset(pgm, 0, sizeof(*pgm));
+	tec_bits = (struct trans_exc_code_bits *)&pgm->trans_exc_code;
+	tec_bits->fsi = write ? FSI_STORE : FSI_FETCH;
+	tec_bits->as = psw_bits(*psw).as;
+
+	if (!psw_bits(*psw).t) {
+		asce->val = 0;
+		asce->r = 1;
+		return 0;
+	}
+
 	switch (psw_bits(vcpu->arch.sie_block->gpsw).as) {
 	case PSW_AS_PRIMARY:
-		return vcpu->arch.sie_block->gcr[1];
+		asce->val = vcpu->arch.sie_block->gcr[1];
+		return 0;
 	case PSW_AS_SECONDARY:
-		return vcpu->arch.sie_block->gcr[7];
+		asce->val = vcpu->arch.sie_block->gcr[7];
+		return 0;
 	case PSW_AS_HOME:
-		return vcpu->arch.sie_block->gcr[13];
+		asce->val = vcpu->arch.sie_block->gcr[13];
+		return 0;
+	case PSW_AS_ACCREG:
+		rc = ar_translation(vcpu, asce, ar, write);
+		switch (rc) {
+		case PGM_ALEN_TRANSLATION:
+		case PGM_ALE_SEQUENCE:
+		case PGM_ASTE_VALIDITY:
+		case PGM_ASTE_SEQUENCE:
+		case PGM_EXTENDED_AUTHORITY:
+			vcpu->arch.pgm.exc_access_id = ar;
+			break;
+		case PGM_PROTECTION:
+			tec_bits->b60 = 1;
+			tec_bits->b61 = 1;
+			break;
+		}
+		if (rc > 0)
+			pgm->code = rc;
+		return rc;
 	}
 	return 0;
 }
@@ -330,10 +521,11 @@ static int deref_table(struct kvm *kvm, unsigned long gpa, unsigned long *val)
  * @vcpu: virtual cpu
  * @gva: guest virtual address
  * @gpa: points to where guest physical (absolute) address should be stored
+ * @asce: effective asce
  * @write: indicates if access is a write access
  *
  * Translate a guest virtual address into a guest absolute address by means
- * of dynamic address translation as specified by the architecuture.
+ * of dynamic address translation as specified by the architecture.
  * If the resulting absolute address is not available in the configuration
  * an addressing exception is indicated and @gpa will not be changed.
  *
@@ -345,7 +537,8 @@ static int deref_table(struct kvm *kvm, unsigned long gpa, unsigned long *val)
  *	      by the architecture
  */
 static unsigned long guest_translate(struct kvm_vcpu *vcpu, unsigned long gva,
-				     unsigned long *gpa, int write)
+				     unsigned long *gpa, const union asce asce,
+				     int write)
 {
 	union vaddress vaddr = {.addr = gva};
 	union raddress raddr = {.addr = gva};
@@ -354,12 +547,10 @@ static unsigned long guest_translate(struct kvm_vcpu *vcpu, unsigned long gva,
 	union ctlreg0 ctlreg0;
 	unsigned long ptr;
 	int edat1, edat2;
-	union asce asce;
 
 	ctlreg0.val = vcpu->arch.sie_block->gcr[0];
 	edat1 = ctlreg0.edat && test_kvm_facility(vcpu->kvm, 8);
 	edat2 = edat1 && test_kvm_facility(vcpu->kvm, 78);
-	asce.val = get_vcpu_asce(vcpu);
 	if (asce.r)
 		goto real_address;
 	ptr = asce.origin * 4096;
@@ -506,48 +697,30 @@ static inline int is_low_address(unsigned long ga)
 	return (ga & ~0x11fful) == 0;
 }
 
-static int low_address_protection_enabled(struct kvm_vcpu *vcpu)
+static int low_address_protection_enabled(struct kvm_vcpu *vcpu,
+					  const union asce asce)
 {
 	union ctlreg0 ctlreg0 = {.val = vcpu->arch.sie_block->gcr[0]};
 	psw_t *psw = &vcpu->arch.sie_block->gpsw;
-	union asce asce;
 
 	if (!ctlreg0.lap)
 		return 0;
-	asce.val = get_vcpu_asce(vcpu);
 	if (psw_bits(*psw).t && asce.p)
 		return 0;
 	return 1;
 }
 
-struct trans_exc_code_bits {
-	unsigned long addr : 52; /* Translation-exception Address */
-	unsigned long fsi  : 2;  /* Access Exception Fetch/Store Indication */
-	unsigned long	   : 7;
-	unsigned long b61  : 1;
-	unsigned long as   : 2;  /* ASCE Identifier */
-};
-
-enum {
-	FSI_UNKNOWN = 0, /* Unknown wether fetch or store */
-	FSI_STORE   = 1, /* Exception was due to store operation */
-	FSI_FETCH   = 2  /* Exception was due to fetch operation */
-};
-
 static int guest_page_range(struct kvm_vcpu *vcpu, unsigned long ga,
 			    unsigned long *pages, unsigned long nr_pages,
-			    int write)
+			    const union asce asce, int write)
 {
 	struct kvm_s390_pgm_info *pgm = &vcpu->arch.pgm;
 	psw_t *psw = &vcpu->arch.sie_block->gpsw;
 	struct trans_exc_code_bits *tec_bits;
 	int lap_enabled, rc;
 
-	memset(pgm, 0, sizeof(*pgm));
 	tec_bits = (struct trans_exc_code_bits *)&pgm->trans_exc_code;
-	tec_bits->fsi = write ? FSI_STORE : FSI_FETCH;
-	tec_bits->as = psw_bits(*psw).as;
-	lap_enabled = low_address_protection_enabled(vcpu);
+	lap_enabled = low_address_protection_enabled(vcpu, asce);
 	while (nr_pages) {
 		ga = kvm_s390_logical_to_effective(vcpu, ga);
 		tec_bits->addr = ga >> PAGE_SHIFT;
@@ -557,7 +730,7 @@ static int guest_page_range(struct kvm_vcpu *vcpu, unsigned long ga,
 		}
 		ga &= PAGE_MASK;
 		if (psw_bits(*psw).t) {
-			rc = guest_translate(vcpu, ga, pages, write);
+			rc = guest_translate(vcpu, ga, pages, asce, write);
 			if (rc < 0)
 				return rc;
 			if (rc == PGM_PROTECTION)
@@ -578,7 +751,7 @@ static int guest_page_range(struct kvm_vcpu *vcpu, unsigned long ga,
 	return 0;
 }
 
-int access_guest(struct kvm_vcpu *vcpu, unsigned long ga, void *data,
+int access_guest(struct kvm_vcpu *vcpu, unsigned long ga, ar_t ar, void *data,
 		 unsigned long len, int write)
 {
 	psw_t *psw = &vcpu->arch.sie_block->gpsw;
@@ -591,20 +764,19 @@ int access_guest(struct kvm_vcpu *vcpu, unsigned long ga, void *data,
 
 	if (!len)
 		return 0;
-	/* Access register mode is not supported yet. */
-	if (psw_bits(*psw).t && psw_bits(*psw).as == PSW_AS_ACCREG)
-		return -EOPNOTSUPP;
+	rc = get_vcpu_asce(vcpu, &asce, ar, write);
+	if (rc)
+		return rc;
 	nr_pages = (((ga & ~PAGE_MASK) + len - 1) >> PAGE_SHIFT) + 1;
 	pages = pages_array;
 	if (nr_pages > ARRAY_SIZE(pages_array))
 		pages = vmalloc(nr_pages * sizeof(unsigned long));
 	if (!pages)
 		return -ENOMEM;
-	asce.val = get_vcpu_asce(vcpu);
 	need_ipte_lock = psw_bits(*psw).t && !asce.r;
 	if (need_ipte_lock)
 		ipte_lock(vcpu);
-	rc = guest_page_range(vcpu, ga, pages, nr_pages, write);
+	rc = guest_page_range(vcpu, ga, pages, nr_pages, asce, write);
 	for (idx = 0; idx < nr_pages && !rc; idx++) {
 		gpa = *(pages + idx) + (ga & ~PAGE_MASK);
 		_len = min(PAGE_SIZE - (gpa & ~PAGE_MASK), len);
@@ -652,7 +824,7 @@ int access_guest_real(struct kvm_vcpu *vcpu, unsigned long gra,
  * Note: The IPTE lock is not taken during this function, so the caller
  * has to take care of this.
  */
-int guest_translate_address(struct kvm_vcpu *vcpu, unsigned long gva,
+int guest_translate_address(struct kvm_vcpu *vcpu, unsigned long gva, ar_t ar,
 			    unsigned long *gpa, int write)
 {
 	struct kvm_s390_pgm_info *pgm = &vcpu->arch.pgm;
@@ -661,26 +833,21 @@ int guest_translate_address(struct kvm_vcpu *vcpu, unsigned long gva,
 	union asce asce;
 	int rc;
 
-	/* Access register mode is not supported yet. */
-	if (psw_bits(*psw).t && psw_bits(*psw).as == PSW_AS_ACCREG)
-		return -EOPNOTSUPP;
-
 	gva = kvm_s390_logical_to_effective(vcpu, gva);
-	memset(pgm, 0, sizeof(*pgm));
 	tec = (struct trans_exc_code_bits *)&pgm->trans_exc_code;
-	tec->as = psw_bits(*psw).as;
-	tec->fsi = write ? FSI_STORE : FSI_FETCH;
+	rc = get_vcpu_asce(vcpu, &asce, ar, write);
 	tec->addr = gva >> PAGE_SHIFT;
-	if (is_low_address(gva) && low_address_protection_enabled(vcpu)) {
+	if (rc)
+		return rc;
+	if (is_low_address(gva) && low_address_protection_enabled(vcpu, asce)) {
 		if (write) {
 			rc = pgm->code = PGM_PROTECTION;
 			return rc;
 		}
 	}
 
-	asce.val = get_vcpu_asce(vcpu);
 	if (psw_bits(*psw).t && !asce.r) {	/* Use DAT? */
-		rc = guest_translate(vcpu, gva, gpa, write);
+		rc = guest_translate(vcpu, gva, gpa, asce, write);
 		if (rc > 0) {
 			if (rc == PGM_PROTECTION)
 				tec->b61 = 1;
@@ -697,28 +864,51 @@ int guest_translate_address(struct kvm_vcpu *vcpu, unsigned long gva,
 }
 
 /**
- * kvm_s390_check_low_addr_protection - check for low-address protection
- * @ga: Guest address
+ * check_gva_range - test a range of guest virtual addresses for accessibility
+ */
+int check_gva_range(struct kvm_vcpu *vcpu, unsigned long gva, ar_t ar,
+		    unsigned long length, int is_write)
+{
+	unsigned long gpa;
+	unsigned long currlen;
+	int rc = 0;
+
+	ipte_lock(vcpu);
+	while (length > 0 && !rc) {
+		currlen = min(length, PAGE_SIZE - (gva % PAGE_SIZE));
+		rc = guest_translate_address(vcpu, gva, ar, &gpa, is_write);
+		gva += currlen;
+		length -= currlen;
+	}
+	ipte_unlock(vcpu);
+
+	return rc;
+}
+
+/**
+ * kvm_s390_check_low_addr_prot_real - check for low-address protection
+ * @gra: Guest real address
  *
  * Checks whether an address is subject to low-address protection and set
  * up vcpu->arch.pgm accordingly if necessary.
  *
  * Return: 0 if no protection exception, or PGM_PROTECTION if protected.
  */
-int kvm_s390_check_low_addr_protection(struct kvm_vcpu *vcpu, unsigned long ga)
+int kvm_s390_check_low_addr_prot_real(struct kvm_vcpu *vcpu, unsigned long gra)
 {
 	struct kvm_s390_pgm_info *pgm = &vcpu->arch.pgm;
 	psw_t *psw = &vcpu->arch.sie_block->gpsw;
 	struct trans_exc_code_bits *tec_bits;
+	union ctlreg0 ctlreg0 = {.val = vcpu->arch.sie_block->gcr[0]};
 
-	if (!is_low_address(ga) || !low_address_protection_enabled(vcpu))
+	if (!ctlreg0.lap || !is_low_address(gra))
 		return 0;
 
 	memset(pgm, 0, sizeof(*pgm));
 	tec_bits = (struct trans_exc_code_bits *)&pgm->trans_exc_code;
 	tec_bits->fsi = FSI_STORE;
 	tec_bits->as = psw_bits(*psw).as;
-	tec_bits->addr = ga >> PAGE_SHIFT;
+	tec_bits->addr = gra >> PAGE_SHIFT;
 	pgm->code = PGM_PROTECTION;
 
 	return pgm->code;
diff --git a/arch/s390/kvm/gaccess.h b/arch/s390/kvm/gaccess.h
index 0149cf1..ef03726 100644
--- a/arch/s390/kvm/gaccess.h
+++ b/arch/s390/kvm/gaccess.h
@@ -156,9 +156,11 @@ int read_guest_lc(struct kvm_vcpu *vcpu, unsigned long gra, void *data,
 }
 
 int guest_translate_address(struct kvm_vcpu *vcpu, unsigned long gva,
-			    unsigned long *gpa, int write);
+			    ar_t ar, unsigned long *gpa, int write);
+int check_gva_range(struct kvm_vcpu *vcpu, unsigned long gva, ar_t ar,
+		    unsigned long length, int is_write);
 
-int access_guest(struct kvm_vcpu *vcpu, unsigned long ga, void *data,
+int access_guest(struct kvm_vcpu *vcpu, unsigned long ga, ar_t ar, void *data,
 		 unsigned long len, int write);
 
 int access_guest_real(struct kvm_vcpu *vcpu, unsigned long gra,
@@ -168,6 +170,7 @@ int access_guest_real(struct kvm_vcpu *vcpu, unsigned long gra,
  * write_guest - copy data from kernel space to guest space
  * @vcpu: virtual cpu
  * @ga: guest address
+ * @ar: access register
  * @data: source address in kernel space
  * @len: number of bytes to copy
  *
@@ -176,8 +179,7 @@ int access_guest_real(struct kvm_vcpu *vcpu, unsigned long gra,
  * If DAT is off data will be copied to guest real or absolute memory.
  * If DAT is on data will be copied to the address space as specified by
  * the address space bits of the PSW:
- * Primary, secondory or home space (access register mode is currently not
- * implemented).
+ * Primary, secondary, home space or access register mode.
  * The addressing mode of the PSW is also inspected, so that address wrap
  * around is taken into account for 24-, 31- and 64-bit addressing mode,
  * if the to be copied data crosses page boundaries in guest address space.
@@ -210,16 +212,17 @@ int access_guest_real(struct kvm_vcpu *vcpu, unsigned long gra,
  *	 if data has been changed in guest space in case of an exception.
  */
 static inline __must_check
-int write_guest(struct kvm_vcpu *vcpu, unsigned long ga, void *data,
+int write_guest(struct kvm_vcpu *vcpu, unsigned long ga, ar_t ar, void *data,
 		unsigned long len)
 {
-	return access_guest(vcpu, ga, data, len, 1);
+	return access_guest(vcpu, ga, ar, data, len, 1);
 }
 
 /**
  * read_guest - copy data from guest space to kernel space
  * @vcpu: virtual cpu
  * @ga: guest address
+ * @ar: access register
  * @data: destination address in kernel space
  * @len: number of bytes to copy
  *
@@ -229,10 +232,10 @@ int write_guest(struct kvm_vcpu *vcpu, unsigned long ga, void *data,
  * data will be copied from guest space to kernel space.
  */
 static inline __must_check
-int read_guest(struct kvm_vcpu *vcpu, unsigned long ga, void *data,
+int read_guest(struct kvm_vcpu *vcpu, unsigned long ga, ar_t ar, void *data,
 	       unsigned long len)
 {
-	return access_guest(vcpu, ga, data, len, 0);
+	return access_guest(vcpu, ga, ar, data, len, 0);
 }
 
 /**
@@ -330,6 +333,6 @@ int read_guest_real(struct kvm_vcpu *vcpu, unsigned long gra, void *data,
 void ipte_lock(struct kvm_vcpu *vcpu);
 void ipte_unlock(struct kvm_vcpu *vcpu);
 int ipte_lock_held(struct kvm_vcpu *vcpu);
-int kvm_s390_check_low_addr_protection(struct kvm_vcpu *vcpu, unsigned long ga);
+int kvm_s390_check_low_addr_prot_real(struct kvm_vcpu *vcpu, unsigned long gra);
 
 #endif /* __KVM_S390_GACCESS_H */
diff --git a/arch/s390/kvm/guestdbg.c b/arch/s390/kvm/guestdbg.c
index 3e8d409..e97b345 100644
--- a/arch/s390/kvm/guestdbg.c
+++ b/arch/s390/kvm/guestdbg.c
@@ -191,8 +191,8 @@ static int __import_wp_info(struct kvm_vcpu *vcpu,
 	if (!wp_info->old_data)
 		return -ENOMEM;
 	/* try to backup the original value */
-	ret = read_guest(vcpu, wp_info->phys_addr, wp_info->old_data,
-			 wp_info->len);
+	ret = read_guest_abs(vcpu, wp_info->phys_addr, wp_info->old_data,
+			     wp_info->len);
 	if (ret) {
 		kfree(wp_info->old_data);
 		wp_info->old_data = NULL;
@@ -362,8 +362,8 @@ static struct kvm_hw_wp_info_arch *any_wp_changed(struct kvm_vcpu *vcpu)
 			continue;
 
 		/* refetch the wp data and compare it to the old value */
-		if (!read_guest(vcpu, wp_info->phys_addr, temp,
-				wp_info->len)) {
+		if (!read_guest_abs(vcpu, wp_info->phys_addr, temp,
+				    wp_info->len)) {
 			if (memcmp(temp, wp_info->old_data, wp_info->len)) {
 				kfree(temp);
 				return wp_info;
diff --git a/arch/s390/kvm/intercept.c b/arch/s390/kvm/intercept.c
index bebd215..9e3779e 100644
--- a/arch/s390/kvm/intercept.c
+++ b/arch/s390/kvm/intercept.c
@@ -165,6 +165,7 @@ static void __extract_prog_irq(struct kvm_vcpu *vcpu,
 		pgm_info->mon_class_nr = vcpu->arch.sie_block->mcn;
 		pgm_info->mon_code = vcpu->arch.sie_block->tecmc;
 		break;
+	case PGM_VECTOR_PROCESSING:
 	case PGM_DATA:
 		pgm_info->data_exc_code = vcpu->arch.sie_block->dxc;
 		break;
@@ -319,7 +320,7 @@ static int handle_mvpg_pei(struct kvm_vcpu *vcpu)
 
 	/* Make sure that the source is paged-in */
 	rc = guest_translate_address(vcpu, vcpu->run->s.regs.gprs[reg2],
-				     &srcaddr, 0);
+				     reg2, &srcaddr, 0);
 	if (rc)
 		return kvm_s390_inject_prog_cond(vcpu, rc);
 	rc = kvm_arch_fault_in_page(vcpu, srcaddr, 0);
@@ -328,7 +329,7 @@ static int handle_mvpg_pei(struct kvm_vcpu *vcpu)
 
 	/* Make sure that the destination is paged-in */
 	rc = guest_translate_address(vcpu, vcpu->run->s.regs.gprs[reg1],
-				     &dstaddr, 1);
+				     reg1, &dstaddr, 1);
 	if (rc)
 		return kvm_s390_inject_prog_cond(vcpu, rc);
 	rc = kvm_arch_fault_in_page(vcpu, dstaddr, 1);
diff --git a/arch/s390/kvm/interrupt.c b/arch/s390/kvm/interrupt.c
index 073b5f3..9de4726 100644
--- a/arch/s390/kvm/interrupt.c
+++ b/arch/s390/kvm/interrupt.c
@@ -1,7 +1,7 @@
 /*
  * handling kvm guest interrupts
  *
- * Copyright IBM Corp. 2008,2014
+ * Copyright IBM Corp. 2008, 2015
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License (version 2 only)
@@ -17,9 +17,12 @@
 #include <linux/signal.h>
 #include <linux/slab.h>
 #include <linux/bitmap.h>
+#include <linux/vmalloc.h>
 #include <asm/asm-offsets.h>
+#include <asm/dis.h>
 #include <asm/uaccess.h>
 #include <asm/sclp.h>
+#include <asm/isc.h>
 #include "kvm-s390.h"
 #include "gaccess.h"
 #include "trace-s390.h"
@@ -32,11 +35,6 @@
 #define PFAULT_DONE 0x0680
 #define VIRTIO_PARAM 0x0d00
 
-static int is_ioint(u64 type)
-{
-	return ((type & 0xfffe0000u) != 0xfffe0000u);
-}
-
 int psw_extint_disabled(struct kvm_vcpu *vcpu)
 {
 	return !(vcpu->arch.sie_block->gpsw.mask & PSW_MASK_EXT);
@@ -72,70 +70,45 @@ static int ckc_interrupts_enabled(struct kvm_vcpu *vcpu)
 	return 1;
 }
 
-static u64 int_word_to_isc_bits(u32 int_word)
+static int ckc_irq_pending(struct kvm_vcpu *vcpu)
+{
+	if (!(vcpu->arch.sie_block->ckc <
+	      get_tod_clock_fast() + vcpu->arch.sie_block->epoch))
+		return 0;
+	return ckc_interrupts_enabled(vcpu);
+}
+
+static int cpu_timer_interrupts_enabled(struct kvm_vcpu *vcpu)
+{
+	return !psw_extint_disabled(vcpu) &&
+	       (vcpu->arch.sie_block->gcr[0] & 0x400ul);
+}
+
+static int cpu_timer_irq_pending(struct kvm_vcpu *vcpu)
+{
+	return (vcpu->arch.sie_block->cputm >> 63) &&
+	       cpu_timer_interrupts_enabled(vcpu);
+}
+
+static inline int is_ioirq(unsigned long irq_type)
 {
-	u8 isc = (int_word & 0x38000000) >> 27;
+	return ((irq_type >= IRQ_PEND_IO_ISC_0) &&
+		(irq_type <= IRQ_PEND_IO_ISC_7));
+}
 
+static uint64_t isc_to_isc_bits(int isc)
+{
 	return (0x80 >> isc) << 24;
 }
 
-static int __must_check __interrupt_is_deliverable(struct kvm_vcpu *vcpu,
-				      struct kvm_s390_interrupt_info *inti)
+static inline u8 int_word_to_isc(u32 int_word)
 {
-	switch (inti->type) {
-	case KVM_S390_INT_EXTERNAL_CALL:
-		if (psw_extint_disabled(vcpu))
-			return 0;
-		if (vcpu->arch.sie_block->gcr[0] & 0x2000ul)
-			return 1;
-		return 0;
-	case KVM_S390_INT_EMERGENCY:
-		if (psw_extint_disabled(vcpu))
-			return 0;
-		if (vcpu->arch.sie_block->gcr[0] & 0x4000ul)
-			return 1;
-		return 0;
-	case KVM_S390_INT_CLOCK_COMP:
-		return ckc_interrupts_enabled(vcpu);
-	case KVM_S390_INT_CPU_TIMER:
-		if (psw_extint_disabled(vcpu))
-			return 0;
-		if (vcpu->arch.sie_block->gcr[0] & 0x400ul)
-			return 1;
-		return 0;
-	case KVM_S390_INT_SERVICE:
-	case KVM_S390_INT_PFAULT_INIT:
-	case KVM_S390_INT_PFAULT_DONE:
-	case KVM_S390_INT_VIRTIO:
-		if (psw_extint_disabled(vcpu))
-			return 0;
-		if (vcpu->arch.sie_block->gcr[0] & 0x200ul)
-			return 1;
-		return 0;
-	case KVM_S390_PROGRAM_INT:
-	case KVM_S390_SIGP_STOP:
-	case KVM_S390_SIGP_SET_PREFIX:
-	case KVM_S390_RESTART:
-		return 1;
-	case KVM_S390_MCHK:
-		if (psw_mchk_disabled(vcpu))
-			return 0;
-		if (vcpu->arch.sie_block->gcr[14] & inti->mchk.cr14)
-			return 1;
-		return 0;
-	case KVM_S390_INT_IO_MIN...KVM_S390_INT_IO_MAX:
-		if (psw_ioint_disabled(vcpu))
-			return 0;
-		if (vcpu->arch.sie_block->gcr[6] &
-		    int_word_to_isc_bits(inti->io.io_int_word))
-			return 1;
-		return 0;
-	default:
-		printk(KERN_WARNING "illegal interrupt type %llx\n",
-		       inti->type);
-		BUG();
-	}
-	return 0;
+	return (int_word & 0x38000000) >> 27;
+}
+
+static inline unsigned long pending_floating_irqs(struct kvm_vcpu *vcpu)
+{
+	return vcpu->kvm->arch.float_int.pending_irqs;
 }
 
 static inline unsigned long pending_local_irqs(struct kvm_vcpu *vcpu)
@@ -143,12 +116,31 @@ static inline unsigned long pending_local_irqs(struct kvm_vcpu *vcpu)
 	return vcpu->arch.local_int.pending_irqs;
 }
 
-static unsigned long deliverable_local_irqs(struct kvm_vcpu *vcpu)
+static unsigned long disable_iscs(struct kvm_vcpu *vcpu,
+				   unsigned long active_mask)
+{
+	int i;
+
+	for (i = 0; i <= MAX_ISC; i++)
+		if (!(vcpu->arch.sie_block->gcr[6] & isc_to_isc_bits(i)))
+			active_mask &= ~(1UL << (IRQ_PEND_IO_ISC_0 + i));
+
+	return active_mask;
+}
+
+static unsigned long deliverable_irqs(struct kvm_vcpu *vcpu)
 {
-	unsigned long active_mask = pending_local_irqs(vcpu);
+	unsigned long active_mask;
+
+	active_mask = pending_local_irqs(vcpu);
+	active_mask |= pending_floating_irqs(vcpu);
 
 	if (psw_extint_disabled(vcpu))
 		active_mask &= ~IRQ_PEND_EXT_MASK;
+	if (psw_ioint_disabled(vcpu))
+		active_mask &= ~IRQ_PEND_IO_MASK;
+	else
+		active_mask = disable_iscs(vcpu, active_mask);
 	if (!(vcpu->arch.sie_block->gcr[0] & 0x2000ul))
 		__clear_bit(IRQ_PEND_EXT_EXTERNAL, &active_mask);
 	if (!(vcpu->arch.sie_block->gcr[0] & 0x4000ul))
@@ -157,8 +149,13 @@ static unsigned long deliverable_local_irqs(struct kvm_vcpu *vcpu)
 		__clear_bit(IRQ_PEND_EXT_CLOCK_COMP, &active_mask);
 	if (!(vcpu->arch.sie_block->gcr[0] & 0x400ul))
 		__clear_bit(IRQ_PEND_EXT_CPU_TIMER, &active_mask);
+	if (!(vcpu->arch.sie_block->gcr[0] & 0x200ul))
+		__clear_bit(IRQ_PEND_EXT_SERVICE, &active_mask);
 	if (psw_mchk_disabled(vcpu))
 		active_mask &= ~IRQ_PEND_MCHK_MASK;
+	if (!(vcpu->arch.sie_block->gcr[14] &
+	      vcpu->kvm->arch.float_int.mchk.cr14))
+		__clear_bit(IRQ_PEND_MCHK_REP, &active_mask);
 
 	/*
 	 * STOP irqs will never be actively delivered. They are triggered via
@@ -200,6 +197,16 @@ static void __set_cpuflag(struct kvm_vcpu *vcpu, u32 flag)
 	atomic_set_mask(flag, &vcpu->arch.sie_block->cpuflags);
 }
 
+static void set_intercept_indicators_io(struct kvm_vcpu *vcpu)
+{
+	if (!(pending_floating_irqs(vcpu) & IRQ_PEND_IO_MASK))
+		return;
+	else if (psw_ioint_disabled(vcpu))
+		__set_cpuflag(vcpu, CPUSTAT_IO_INT);
+	else
+		vcpu->arch.sie_block->lctl |= LCTL_CR6;
+}
+
 static void set_intercept_indicators_ext(struct kvm_vcpu *vcpu)
 {
 	if (!(pending_local_irqs(vcpu) & IRQ_PEND_EXT_MASK))
@@ -226,47 +233,17 @@ static void set_intercept_indicators_stop(struct kvm_vcpu *vcpu)
 		__set_cpuflag(vcpu, CPUSTAT_STOP_INT);
 }
 
-/* Set interception request for non-deliverable local interrupts */
-static void set_intercept_indicators_local(struct kvm_vcpu *vcpu)
+/* Set interception request for non-deliverable interrupts */
+static void set_intercept_indicators(struct kvm_vcpu *vcpu)
 {
+	set_intercept_indicators_io(vcpu);
 	set_intercept_indicators_ext(vcpu);
 	set_intercept_indicators_mchk(vcpu);
 	set_intercept_indicators_stop(vcpu);
 }
 
-static void __set_intercept_indicator(struct kvm_vcpu *vcpu,
-				      struct kvm_s390_interrupt_info *inti)
-{
-	switch (inti->type) {
-	case KVM_S390_INT_SERVICE:
-	case KVM_S390_INT_PFAULT_DONE:
-	case KVM_S390_INT_VIRTIO:
-		if (psw_extint_disabled(vcpu))
-			__set_cpuflag(vcpu, CPUSTAT_EXT_INT);
-		else
-			vcpu->arch.sie_block->lctl |= LCTL_CR0;
-		break;
-	case KVM_S390_MCHK:
-		if (psw_mchk_disabled(vcpu))
-			vcpu->arch.sie_block->ictl |= ICTL_LPSW;
-		else
-			vcpu->arch.sie_block->lctl |= LCTL_CR14;
-		break;
-	case KVM_S390_INT_IO_MIN...KVM_S390_INT_IO_MAX:
-		if (psw_ioint_disabled(vcpu))
-			__set_cpuflag(vcpu, CPUSTAT_IO_INT);
-		else
-			vcpu->arch.sie_block->lctl |= LCTL_CR6;
-		break;
-	default:
-		BUG();
-	}
-}
-
 static u16 get_ilc(struct kvm_vcpu *vcpu)
 {
-	const unsigned short table[] = { 2, 4, 4, 6 };
-
 	switch (vcpu->arch.sie_block->icptcode) {
 	case ICPT_INST:
 	case ICPT_INSTPROGI:
@@ -274,7 +251,7 @@ static u16 get_ilc(struct kvm_vcpu *vcpu)
 	case ICPT_PARTEXEC:
 	case ICPT_IOINST:
 		/* last instruction only stored for these icptcodes */
-		return table[vcpu->arch.sie_block->ipa >> 14];
+		return insn_length(vcpu->arch.sie_block->ipa >> 8);
 	case ICPT_PROGI:
 		return vcpu->arch.sie_block->pgmilc;
 	default:
@@ -350,38 +327,72 @@ static int __must_check __deliver_pfault_init(struct kvm_vcpu *vcpu)
 
 static int __must_check __deliver_machine_check(struct kvm_vcpu *vcpu)
 {
+	struct kvm_s390_float_interrupt *fi = &vcpu->kvm->arch.float_int;
 	struct kvm_s390_local_interrupt *li = &vcpu->arch.local_int;
-	struct kvm_s390_mchk_info mchk;
-	int rc;
+	struct kvm_s390_mchk_info mchk = {};
+	unsigned long adtl_status_addr;
+	int deliver = 0;
+	int rc = 0;
 
+	spin_lock(&fi->lock);
 	spin_lock(&li->lock);
-	mchk = li->irq.mchk;
+	if (test_bit(IRQ_PEND_MCHK_EX, &li->pending_irqs) ||
+	    test_bit(IRQ_PEND_MCHK_REP, &li->pending_irqs)) {
+		/*
+		 * If there was an exigent machine check pending, then any
+		 * repressible machine checks that might have been pending
+		 * are indicated along with it, so always clear bits for
+		 * repressible and exigent interrupts
+		 */
+		mchk = li->irq.mchk;
+		clear_bit(IRQ_PEND_MCHK_EX, &li->pending_irqs);
+		clear_bit(IRQ_PEND_MCHK_REP, &li->pending_irqs);
+		memset(&li->irq.mchk, 0, sizeof(mchk));
+		deliver = 1;
+	}
 	/*
-	 * If there was an exigent machine check pending, then any repressible
-	 * machine checks that might have been pending are indicated along
-	 * with it, so always clear both bits
+	 * We indicate floating repressible conditions along with
+	 * other pending conditions. Channel Report Pending and Channel
+	 * Subsystem damage are the only two and and are indicated by
+	 * bits in mcic and masked in cr14.
 	 */
-	clear_bit(IRQ_PEND_MCHK_EX, &li->pending_irqs);
-	clear_bit(IRQ_PEND_MCHK_REP, &li->pending_irqs);
-	memset(&li->irq.mchk, 0, sizeof(mchk));
+	if (test_and_clear_bit(IRQ_PEND_MCHK_REP, &fi->pending_irqs)) {
+		mchk.mcic |= fi->mchk.mcic;
+		mchk.cr14 |= fi->mchk.cr14;
+		memset(&fi->mchk, 0, sizeof(mchk));
+		deliver = 1;
+	}
 	spin_unlock(&li->lock);
+	spin_unlock(&fi->lock);
 
-	VCPU_EVENT(vcpu, 4, "interrupt: machine check mcic=%llx",
-		   mchk.mcic);
-	trace_kvm_s390_deliver_interrupt(vcpu->vcpu_id, KVM_S390_MCHK,
-					 mchk.cr14, mchk.mcic);
-
-	rc  = kvm_s390_vcpu_store_status(vcpu, KVM_S390_STORE_STATUS_PREFIXED);
-	rc |= put_guest_lc(vcpu, mchk.mcic,
-			   (u64 __user *) __LC_MCCK_CODE);
-	rc |= put_guest_lc(vcpu, mchk.failing_storage_address,
-			   (u64 __user *) __LC_MCCK_FAIL_STOR_ADDR);
-	rc |= write_guest_lc(vcpu, __LC_PSW_SAVE_AREA,
-			     &mchk.fixed_logout, sizeof(mchk.fixed_logout));
-	rc |= write_guest_lc(vcpu, __LC_MCK_OLD_PSW,
-			     &vcpu->arch.sie_block->gpsw, sizeof(psw_t));
-	rc |= read_guest_lc(vcpu, __LC_MCK_NEW_PSW,
-			    &vcpu->arch.sie_block->gpsw, sizeof(psw_t));
+	if (deliver) {
+		VCPU_EVENT(vcpu, 4, "interrupt: machine check mcic=%llx",
+			   mchk.mcic);
+		trace_kvm_s390_deliver_interrupt(vcpu->vcpu_id,
+						 KVM_S390_MCHK,
+						 mchk.cr14, mchk.mcic);
+
+		rc  = kvm_s390_vcpu_store_status(vcpu,
+						 KVM_S390_STORE_STATUS_PREFIXED);
+		rc |= read_guest_lc(vcpu, __LC_VX_SAVE_AREA_ADDR,
+				    &adtl_status_addr,
+				    sizeof(unsigned long));
+		rc |= kvm_s390_vcpu_store_adtl_status(vcpu,
+						      adtl_status_addr);
+		rc |= put_guest_lc(vcpu, mchk.mcic,
+				   (u64 __user *) __LC_MCCK_CODE);
+		rc |= put_guest_lc(vcpu, mchk.failing_storage_address,
+				   (u64 __user *) __LC_MCCK_FAIL_STOR_ADDR);
+		rc |= write_guest_lc(vcpu, __LC_PSW_SAVE_AREA,
+				     &mchk.fixed_logout,
+				     sizeof(mchk.fixed_logout));
+		rc |= write_guest_lc(vcpu, __LC_MCK_OLD_PSW,
+				     &vcpu->arch.sie_block->gpsw,
+				     sizeof(psw_t));
+		rc |= read_guest_lc(vcpu, __LC_MCK_NEW_PSW,
+				    &vcpu->arch.sie_block->gpsw,
+				    sizeof(psw_t));
+	}
 	return rc ? -EFAULT : 0;
 }
 
@@ -484,7 +495,7 @@ static int __must_check __deliver_prog(struct kvm_vcpu *vcpu)
 {
 	struct kvm_s390_local_interrupt *li = &vcpu->arch.local_int;
 	struct kvm_s390_pgm_info pgm_info;
-	int rc = 0;
+	int rc = 0, nullifying = false;
 	u16 ilc = get_ilc(vcpu);
 
 	spin_lock(&li->lock);
@@ -509,6 +520,8 @@ static int __must_check __deliver_prog(struct kvm_vcpu *vcpu)
 	case PGM_LX_TRANSLATION:
 	case PGM_PRIMARY_AUTHORITY:
 	case PGM_SECONDARY_AUTHORITY:
+		nullifying = true;
+		/* fall through */
 	case PGM_SPACE_SWITCH:
 		rc = put_guest_lc(vcpu, pgm_info.trans_exc_code,
 				  (u64 *)__LC_TRANS_EXC_CODE);
@@ -521,6 +534,7 @@ static int __must_check __deliver_prog(struct kvm_vcpu *vcpu)
 	case PGM_EXTENDED_AUTHORITY:
 		rc = put_guest_lc(vcpu, pgm_info.exc_access_id,
 				  (u8 *)__LC_EXC_ACCESS_ID);
+		nullifying = true;
 		break;
 	case PGM_ASCE_TYPE:
 	case PGM_PAGE_TRANSLATION:
@@ -534,6 +548,7 @@ static int __must_check __deliver_prog(struct kvm_vcpu *vcpu)
 				   (u8 *)__LC_EXC_ACCESS_ID);
 		rc |= put_guest_lc(vcpu, pgm_info.op_access_id,
 				   (u8 *)__LC_OP_ACCESS_ID);
+		nullifying = true;
 		break;
 	case PGM_MONITOR:
 		rc = put_guest_lc(vcpu, pgm_info.mon_class_nr,
@@ -541,6 +556,7 @@ static int __must_check __deliver_prog(struct kvm_vcpu *vcpu)
 		rc |= put_guest_lc(vcpu, pgm_info.mon_code,
 				   (u64 *)__LC_MON_CODE);
 		break;
+	case PGM_VECTOR_PROCESSING:
 	case PGM_DATA:
 		rc = put_guest_lc(vcpu, pgm_info.data_exc_code,
 				  (u32 *)__LC_DATA_EXC_CODE);
@@ -551,6 +567,15 @@ static int __must_check __deliver_prog(struct kvm_vcpu *vcpu)
 		rc |= put_guest_lc(vcpu, pgm_info.exc_access_id,
 				   (u8 *)__LC_EXC_ACCESS_ID);
 		break;
+	case PGM_STACK_FULL:
+	case PGM_STACK_EMPTY:
+	case PGM_STACK_SPECIFICATION:
+	case PGM_STACK_TYPE:
+	case PGM_STACK_OPERATION:
+	case PGM_TRACE_TABEL:
+	case PGM_CRYPTO_OPERATION:
+		nullifying = true;
+		break;
 	}
 
 	if (pgm_info.code & PGM_PER) {
@@ -564,7 +589,12 @@ static int __must_check __deliver_prog(struct kvm_vcpu *vcpu)
 				   (u8 *) __LC_PER_ACCESS_ID);
 	}
 
+	if (nullifying && vcpu->arch.sie_block->icptcode == ICPT_INST)
+		kvm_s390_rewind_psw(vcpu, ilc);
+
 	rc |= put_guest_lc(vcpu, ilc, (u16 *) __LC_PGM_ILC);
+	rc |= put_guest_lc(vcpu, vcpu->arch.sie_block->gbea,
+				 (u64 *) __LC_LAST_BREAK);
 	rc |= put_guest_lc(vcpu, pgm_info.code,
 			   (u16 *)__LC_PGM_INT_CODE);
 	rc |= write_guest_lc(vcpu, __LC_PGM_OLD_PSW,
@@ -574,16 +604,27 @@ static int __must_check __deliver_prog(struct kvm_vcpu *vcpu)
 	return rc ? -EFAULT : 0;
 }
 
-static int __must_check __deliver_service(struct kvm_vcpu *vcpu,
-					  struct kvm_s390_interrupt_info *inti)
+static int __must_check __deliver_service(struct kvm_vcpu *vcpu)
 {
-	int rc;
+	struct kvm_s390_float_interrupt *fi = &vcpu->kvm->arch.float_int;
+	struct kvm_s390_ext_info ext;
+	int rc = 0;
+
+	spin_lock(&fi->lock);
+	if (!(test_bit(IRQ_PEND_EXT_SERVICE, &fi->pending_irqs))) {
+		spin_unlock(&fi->lock);
+		return 0;
+	}
+	ext = fi->srv_signal;
+	memset(&fi->srv_signal, 0, sizeof(ext));
+	clear_bit(IRQ_PEND_EXT_SERVICE, &fi->pending_irqs);
+	spin_unlock(&fi->lock);
 
 	VCPU_EVENT(vcpu, 4, "interrupt: sclp parm:%x",
-		   inti->ext.ext_params);
+		   ext.ext_params);
 	vcpu->stat.deliver_service_signal++;
-	trace_kvm_s390_deliver_interrupt(vcpu->vcpu_id, inti->type,
-					 inti->ext.ext_params, 0);
+	trace_kvm_s390_deliver_interrupt(vcpu->vcpu_id, KVM_S390_INT_SERVICE,
+					 ext.ext_params, 0);
 
 	rc  = put_guest_lc(vcpu, EXT_IRQ_SERVICE_SIG, (u16 *)__LC_EXT_INT_CODE);
 	rc |= put_guest_lc(vcpu, 0, (u16 *)__LC_EXT_CPU_ADDR);
@@ -591,106 +632,146 @@ static int __must_check __deliver_service(struct kvm_vcpu *vcpu,
 			     &vcpu->arch.sie_block->gpsw, sizeof(psw_t));
 	rc |= read_guest_lc(vcpu, __LC_EXT_NEW_PSW,
 			    &vcpu->arch.sie_block->gpsw, sizeof(psw_t));
-	rc |= put_guest_lc(vcpu, inti->ext.ext_params,
+	rc |= put_guest_lc(vcpu, ext.ext_params,
 			   (u32 *)__LC_EXT_PARAMS);
+
 	return rc ? -EFAULT : 0;
 }
 
-static int __must_check __deliver_pfault_done(struct kvm_vcpu *vcpu,
-					   struct kvm_s390_interrupt_info *inti)
+static int __must_check __deliver_pfault_done(struct kvm_vcpu *vcpu)
 {
-	int rc;
+	struct kvm_s390_float_interrupt *fi = &vcpu->kvm->arch.float_int;
+	struct kvm_s390_interrupt_info *inti;
+	int rc = 0;
 
-	trace_kvm_s390_deliver_interrupt(vcpu->vcpu_id,
-					 KVM_S390_INT_PFAULT_DONE, 0,
-					 inti->ext.ext_params2);
+	spin_lock(&fi->lock);
+	inti = list_first_entry_or_null(&fi->lists[FIRQ_LIST_PFAULT],
+					struct kvm_s390_interrupt_info,
+					list);
+	if (inti) {
+		trace_kvm_s390_deliver_interrupt(vcpu->vcpu_id,
+				KVM_S390_INT_PFAULT_DONE, 0,
+				inti->ext.ext_params2);
+		list_del(&inti->list);
+		fi->counters[FIRQ_CNTR_PFAULT] -= 1;
+	}
+	if (list_empty(&fi->lists[FIRQ_LIST_PFAULT]))
+		clear_bit(IRQ_PEND_PFAULT_DONE, &fi->pending_irqs);
+	spin_unlock(&fi->lock);
 
-	rc  = put_guest_lc(vcpu, EXT_IRQ_CP_SERVICE, (u16 *)__LC_EXT_INT_CODE);
-	rc |= put_guest_lc(vcpu, PFAULT_DONE, (u16 *)__LC_EXT_CPU_ADDR);
-	rc |= write_guest_lc(vcpu, __LC_EXT_OLD_PSW,
-			     &vcpu->arch.sie_block->gpsw, sizeof(psw_t));
-	rc |= read_guest_lc(vcpu, __LC_EXT_NEW_PSW,
-			    &vcpu->arch.sie_block->gpsw, sizeof(psw_t));
-	rc |= put_guest_lc(vcpu, inti->ext.ext_params2,
-			   (u64 *)__LC_EXT_PARAMS2);
+	if (inti) {
+		rc  = put_guest_lc(vcpu, EXT_IRQ_CP_SERVICE,
+				(u16 *)__LC_EXT_INT_CODE);
+		rc |= put_guest_lc(vcpu, PFAULT_DONE,
+				(u16 *)__LC_EXT_CPU_ADDR);
+		rc |= write_guest_lc(vcpu, __LC_EXT_OLD_PSW,
+				&vcpu->arch.sie_block->gpsw,
+				sizeof(psw_t));
+		rc |= read_guest_lc(vcpu, __LC_EXT_NEW_PSW,
+				&vcpu->arch.sie_block->gpsw,
+				sizeof(psw_t));
+		rc |= put_guest_lc(vcpu, inti->ext.ext_params2,
+				(u64 *)__LC_EXT_PARAMS2);
+		kfree(inti);
+	}
 	return rc ? -EFAULT : 0;
 }
 
-static int __must_check __deliver_virtio(struct kvm_vcpu *vcpu,
-					 struct kvm_s390_interrupt_info *inti)
+static int __must_check __deliver_virtio(struct kvm_vcpu *vcpu)
 {
-	int rc;
+	struct kvm_s390_float_interrupt *fi = &vcpu->kvm->arch.float_int;
+	struct kvm_s390_interrupt_info *inti;
+	int rc = 0;
 
-	VCPU_EVENT(vcpu, 4, "interrupt: virtio parm:%x,parm64:%llx",
-		   inti->ext.ext_params, inti->ext.ext_params2);
-	vcpu->stat.deliver_virtio_interrupt++;
-	trace_kvm_s390_deliver_interrupt(vcpu->vcpu_id, inti->type,
-					 inti->ext.ext_params,
-					 inti->ext.ext_params2);
+	spin_lock(&fi->lock);
+	inti = list_first_entry_or_null(&fi->lists[FIRQ_LIST_VIRTIO],
+					struct kvm_s390_interrupt_info,
+					list);
+	if (inti) {
+		VCPU_EVENT(vcpu, 4,
+			   "interrupt: virtio parm:%x,parm64:%llx",
+			   inti->ext.ext_params, inti->ext.ext_params2);
+		vcpu->stat.deliver_virtio_interrupt++;
+		trace_kvm_s390_deliver_interrupt(vcpu->vcpu_id,
+				inti->type,
+				inti->ext.ext_params,
+				inti->ext.ext_params2);
+		list_del(&inti->list);
+		fi->counters[FIRQ_CNTR_VIRTIO] -= 1;
+	}
+	if (list_empty(&fi->lists[FIRQ_LIST_VIRTIO]))
+		clear_bit(IRQ_PEND_VIRTIO, &fi->pending_irqs);
+	spin_unlock(&fi->lock);
 
-	rc  = put_guest_lc(vcpu, EXT_IRQ_CP_SERVICE, (u16 *)__LC_EXT_INT_CODE);
-	rc |= put_guest_lc(vcpu, VIRTIO_PARAM, (u16 *)__LC_EXT_CPU_ADDR);
-	rc |= write_guest_lc(vcpu, __LC_EXT_OLD_PSW,
-			     &vcpu->arch.sie_block->gpsw, sizeof(psw_t));
-	rc |= read_guest_lc(vcpu, __LC_EXT_NEW_PSW,
-			    &vcpu->arch.sie_block->gpsw, sizeof(psw_t));
-	rc |= put_guest_lc(vcpu, inti->ext.ext_params,
-			   (u32 *)__LC_EXT_PARAMS);
-	rc |= put_guest_lc(vcpu, inti->ext.ext_params2,
-			   (u64 *)__LC_EXT_PARAMS2);
+	if (inti) {
+		rc  = put_guest_lc(vcpu, EXT_IRQ_CP_SERVICE,
+				(u16 *)__LC_EXT_INT_CODE);
+		rc |= put_guest_lc(vcpu, VIRTIO_PARAM,
+				(u16 *)__LC_EXT_CPU_ADDR);
+		rc |= write_guest_lc(vcpu, __LC_EXT_OLD_PSW,
+				&vcpu->arch.sie_block->gpsw,
+				sizeof(psw_t));
+		rc |= read_guest_lc(vcpu, __LC_EXT_NEW_PSW,
+				&vcpu->arch.sie_block->gpsw,
+				sizeof(psw_t));
+		rc |= put_guest_lc(vcpu, inti->ext.ext_params,
+				(u32 *)__LC_EXT_PARAMS);
+		rc |= put_guest_lc(vcpu, inti->ext.ext_params2,
+				(u64 *)__LC_EXT_PARAMS2);
+		kfree(inti);
+	}
 	return rc ? -EFAULT : 0;
 }
 
 static int __must_check __deliver_io(struct kvm_vcpu *vcpu,
-				     struct kvm_s390_interrupt_info *inti)
+				     unsigned long irq_type)
 {
-	int rc;
+	struct list_head *isc_list;
+	struct kvm_s390_float_interrupt *fi;
+	struct kvm_s390_interrupt_info *inti = NULL;
+	int rc = 0;
 
-	VCPU_EVENT(vcpu, 4, "interrupt: I/O %llx", inti->type);
-	vcpu->stat.deliver_io_int++;
-	trace_kvm_s390_deliver_interrupt(vcpu->vcpu_id, inti->type,
-					 ((__u32)inti->io.subchannel_id << 16) |
-						inti->io.subchannel_nr,
-					 ((__u64)inti->io.io_int_parm << 32) |
-						inti->io.io_int_word);
-
-	rc  = put_guest_lc(vcpu, inti->io.subchannel_id,
-			   (u16 *)__LC_SUBCHANNEL_ID);
-	rc |= put_guest_lc(vcpu, inti->io.subchannel_nr,
-			   (u16 *)__LC_SUBCHANNEL_NR);
-	rc |= put_guest_lc(vcpu, inti->io.io_int_parm,
-			   (u32 *)__LC_IO_INT_PARM);
-	rc |= put_guest_lc(vcpu, inti->io.io_int_word,
-			   (u32 *)__LC_IO_INT_WORD);
-	rc |= write_guest_lc(vcpu, __LC_IO_OLD_PSW,
-			     &vcpu->arch.sie_block->gpsw, sizeof(psw_t));
-	rc |= read_guest_lc(vcpu, __LC_IO_NEW_PSW,
-			    &vcpu->arch.sie_block->gpsw, sizeof(psw_t));
-	return rc ? -EFAULT : 0;
-}
+	fi = &vcpu->kvm->arch.float_int;
 
-static int __must_check __deliver_mchk_floating(struct kvm_vcpu *vcpu,
-					   struct kvm_s390_interrupt_info *inti)
-{
-	struct kvm_s390_mchk_info *mchk = &inti->mchk;
-	int rc;
+	spin_lock(&fi->lock);
+	isc_list = &fi->lists[irq_type - IRQ_PEND_IO_ISC_0];
+	inti = list_first_entry_or_null(isc_list,
+					struct kvm_s390_interrupt_info,
+					list);
+	if (inti) {
+		VCPU_EVENT(vcpu, 4, "interrupt: I/O %llx", inti->type);
+		vcpu->stat.deliver_io_int++;
+		trace_kvm_s390_deliver_interrupt(vcpu->vcpu_id,
+				inti->type,
+				((__u32)inti->io.subchannel_id << 16) |
+				inti->io.subchannel_nr,
+				((__u64)inti->io.io_int_parm << 32) |
+				inti->io.io_int_word);
+		list_del(&inti->list);
+		fi->counters[FIRQ_CNTR_IO] -= 1;
+	}
+	if (list_empty(isc_list))
+		clear_bit(irq_type, &fi->pending_irqs);
+	spin_unlock(&fi->lock);
+
+	if (inti) {
+		rc  = put_guest_lc(vcpu, inti->io.subchannel_id,
+				(u16 *)__LC_SUBCHANNEL_ID);
+		rc |= put_guest_lc(vcpu, inti->io.subchannel_nr,
+				(u16 *)__LC_SUBCHANNEL_NR);
+		rc |= put_guest_lc(vcpu, inti->io.io_int_parm,
+				(u32 *)__LC_IO_INT_PARM);
+		rc |= put_guest_lc(vcpu, inti->io.io_int_word,
+				(u32 *)__LC_IO_INT_WORD);
+		rc |= write_guest_lc(vcpu, __LC_IO_OLD_PSW,
+				&vcpu->arch.sie_block->gpsw,
+				sizeof(psw_t));
+		rc |= read_guest_lc(vcpu, __LC_IO_NEW_PSW,
+				&vcpu->arch.sie_block->gpsw,
+				sizeof(psw_t));
+		kfree(inti);
+	}
 
-	VCPU_EVENT(vcpu, 4, "interrupt: machine check mcic=%llx",
-		   mchk->mcic);
-	trace_kvm_s390_deliver_interrupt(vcpu->vcpu_id, KVM_S390_MCHK,
-					 mchk->cr14, mchk->mcic);
-
-	rc  = kvm_s390_vcpu_store_status(vcpu, KVM_S390_STORE_STATUS_PREFIXED);
-	rc |= put_guest_lc(vcpu, mchk->mcic,
-			(u64 __user *) __LC_MCCK_CODE);
-	rc |= put_guest_lc(vcpu, mchk->failing_storage_address,
-			(u64 __user *) __LC_MCCK_FAIL_STOR_ADDR);
-	rc |= write_guest_lc(vcpu, __LC_PSW_SAVE_AREA,
-			     &mchk->fixed_logout, sizeof(mchk->fixed_logout));
-	rc |= write_guest_lc(vcpu, __LC_MCK_OLD_PSW,
-			     &vcpu->arch.sie_block->gpsw, sizeof(psw_t));
-	rc |= read_guest_lc(vcpu, __LC_MCK_NEW_PSW,
-			    &vcpu->arch.sie_block->gpsw, sizeof(psw_t));
 	return rc ? -EFAULT : 0;
 }
 
@@ -698,6 +779,7 @@ typedef int (*deliver_irq_t)(struct kvm_vcpu *vcpu);
 
 static const deliver_irq_t deliver_irq_funcs[] = {
 	[IRQ_PEND_MCHK_EX]        = __deliver_machine_check,
+	[IRQ_PEND_MCHK_REP]       = __deliver_machine_check,
 	[IRQ_PEND_PROG]           = __deliver_prog,
 	[IRQ_PEND_EXT_EMERGENCY]  = __deliver_emergency_signal,
 	[IRQ_PEND_EXT_EXTERNAL]   = __deliver_external_call,
@@ -706,36 +788,11 @@ static const deliver_irq_t deliver_irq_funcs[] = {
 	[IRQ_PEND_RESTART]        = __deliver_restart,
 	[IRQ_PEND_SET_PREFIX]     = __deliver_set_prefix,
 	[IRQ_PEND_PFAULT_INIT]    = __deliver_pfault_init,
+	[IRQ_PEND_EXT_SERVICE]    = __deliver_service,
+	[IRQ_PEND_PFAULT_DONE]    = __deliver_pfault_done,
+	[IRQ_PEND_VIRTIO]         = __deliver_virtio,
 };
 
-static int __must_check __deliver_floating_interrupt(struct kvm_vcpu *vcpu,
-					   struct kvm_s390_interrupt_info *inti)
-{
-	int rc;
-
-	switch (inti->type) {
-	case KVM_S390_INT_SERVICE:
-		rc = __deliver_service(vcpu, inti);
-		break;
-	case KVM_S390_INT_PFAULT_DONE:
-		rc = __deliver_pfault_done(vcpu, inti);
-		break;
-	case KVM_S390_INT_VIRTIO:
-		rc = __deliver_virtio(vcpu, inti);
-		break;
-	case KVM_S390_MCHK:
-		rc = __deliver_mchk_floating(vcpu, inti);
-		break;
-	case KVM_S390_INT_IO_MIN...KVM_S390_INT_IO_MAX:
-		rc = __deliver_io(vcpu, inti);
-		break;
-	default:
-		BUG();
-	}
-
-	return rc;
-}
-
 /* Check whether an external call is pending (deliverable or not) */
 int kvm_s390_ext_call_pending(struct kvm_vcpu *vcpu)
 {
@@ -751,21 +808,9 @@ int kvm_s390_ext_call_pending(struct kvm_vcpu *vcpu)
 
 int kvm_s390_vcpu_has_irq(struct kvm_vcpu *vcpu, int exclude_stop)
 {
-	struct kvm_s390_float_interrupt *fi = vcpu->arch.local_int.float_int;
-	struct kvm_s390_interrupt_info  *inti;
 	int rc;
 
-	rc = !!deliverable_local_irqs(vcpu);
-
-	if ((!rc) && atomic_read(&fi->active)) {
-		spin_lock(&fi->lock);
-		list_for_each_entry(inti, &fi->list, list)
-			if (__interrupt_is_deliverable(vcpu, inti)) {
-				rc = 1;
-				break;
-			}
-		spin_unlock(&fi->lock);
-	}
+	rc = !!deliverable_irqs(vcpu);
 
 	if (!rc && kvm_cpu_has_pending_timer(vcpu))
 		rc = 1;
@@ -784,12 +829,7 @@ int kvm_s390_vcpu_has_irq(struct kvm_vcpu *vcpu, int exclude_stop)
 
 int kvm_cpu_has_pending_timer(struct kvm_vcpu *vcpu)
 {
-	if (!(vcpu->arch.sie_block->ckc <
-	      get_tod_clock_fast() + vcpu->arch.sie_block->epoch))
-		return 0;
-	if (!ckc_interrupts_enabled(vcpu))
-		return 0;
-	return 1;
+	return ckc_irq_pending(vcpu) || cpu_timer_irq_pending(vcpu);
 }
 
 int kvm_s390_handle_wait(struct kvm_vcpu *vcpu)
@@ -884,60 +924,45 @@ void kvm_s390_clear_local_irqs(struct kvm_vcpu *vcpu)
 int __must_check kvm_s390_deliver_pending_interrupts(struct kvm_vcpu *vcpu)
 {
 	struct kvm_s390_local_interrupt *li = &vcpu->arch.local_int;
-	struct kvm_s390_float_interrupt *fi = vcpu->arch.local_int.float_int;
-	struct kvm_s390_interrupt_info  *n, *inti = NULL;
 	deliver_irq_t func;
-	int deliver;
 	int rc = 0;
 	unsigned long irq_type;
-	unsigned long deliverable_irqs;
+	unsigned long irqs;
 
 	__reset_intercept_indicators(vcpu);
 
 	/* pending ckc conditions might have been invalidated */
 	clear_bit(IRQ_PEND_EXT_CLOCK_COMP, &li->pending_irqs);
-	if (kvm_cpu_has_pending_timer(vcpu))
+	if (ckc_irq_pending(vcpu))
 		set_bit(IRQ_PEND_EXT_CLOCK_COMP, &li->pending_irqs);
 
+	/* pending cpu timer conditions might have been invalidated */
+	clear_bit(IRQ_PEND_EXT_CPU_TIMER, &li->pending_irqs);
+	if (cpu_timer_irq_pending(vcpu))
+		set_bit(IRQ_PEND_EXT_CPU_TIMER, &li->pending_irqs);
+
 	do {
-		deliverable_irqs = deliverable_local_irqs(vcpu);
+		irqs = deliverable_irqs(vcpu);
 		/* bits are in the order of interrupt priority */
-		irq_type = find_first_bit(&deliverable_irqs, IRQ_PEND_COUNT);
+		irq_type = find_first_bit(&irqs, IRQ_PEND_COUNT);
 		if (irq_type == IRQ_PEND_COUNT)
 			break;
-		func = deliver_irq_funcs[irq_type];
-		if (!func) {
-			WARN_ON_ONCE(func == NULL);
-			clear_bit(irq_type, &li->pending_irqs);
-			continue;
+		if (is_ioirq(irq_type)) {
+			rc = __deliver_io(vcpu, irq_type);
+		} else {
+			func = deliver_irq_funcs[irq_type];
+			if (!func) {
+				WARN_ON_ONCE(func == NULL);
+				clear_bit(irq_type, &li->pending_irqs);
+				continue;
+			}
+			rc = func(vcpu);
 		}
-		rc = func(vcpu);
-	} while (!rc && irq_type != IRQ_PEND_COUNT);
+		if (rc)
+			break;
+	} while (!rc);
 
-	set_intercept_indicators_local(vcpu);
-
-	if (!rc && atomic_read(&fi->active)) {
-		do {
-			deliver = 0;
-			spin_lock(&fi->lock);
-			list_for_each_entry_safe(inti, n, &fi->list, list) {
-				if (__interrupt_is_deliverable(vcpu, inti)) {
-					list_del(&inti->list);
-					fi->irq_count--;
-					deliver = 1;
-					break;
-				}
-				__set_intercept_indicator(vcpu, inti);
-			}
-			if (list_empty(&fi->list))
-				atomic_set(&fi->active, 0);
-			spin_unlock(&fi->lock);
-			if (deliver) {
-				rc = __deliver_floating_interrupt(vcpu, inti);
-				kfree(inti);
-			}
-		} while (!rc && deliver);
-	}
+	set_intercept_indicators(vcpu);
 
 	return rc;
 }
@@ -1172,80 +1197,182 @@ static int __inject_cpu_timer(struct kvm_vcpu *vcpu)
 	return 0;
 }
 
+static struct kvm_s390_interrupt_info *get_io_int(struct kvm *kvm,
+						  int isc, u32 schid)
+{
+	struct kvm_s390_float_interrupt *fi = &kvm->arch.float_int;
+	struct list_head *isc_list = &fi->lists[FIRQ_LIST_IO_ISC_0 + isc];
+	struct kvm_s390_interrupt_info *iter;
+	u16 id = (schid & 0xffff0000U) >> 16;
+	u16 nr = schid & 0x0000ffffU;
 
+	spin_lock(&fi->lock);
+	list_for_each_entry(iter, isc_list, list) {
+		if (schid && (id != iter->io.subchannel_id ||
+			      nr != iter->io.subchannel_nr))
+			continue;
+		/* found an appropriate entry */
+		list_del_init(&iter->list);
+		fi->counters[FIRQ_CNTR_IO] -= 1;
+		if (list_empty(isc_list))
+			clear_bit(IRQ_PEND_IO_ISC_0 + isc, &fi->pending_irqs);
+		spin_unlock(&fi->lock);
+		return iter;
+	}
+	spin_unlock(&fi->lock);
+	return NULL;
+}
+
+/*
+ * Dequeue and return an I/O interrupt matching any of the interruption
+ * subclasses as designated by the isc mask in cr6 and the schid (if != 0).
+ */
 struct kvm_s390_interrupt_info *kvm_s390_get_io_int(struct kvm *kvm,
-						    u64 cr6, u64 schid)
+						    u64 isc_mask, u32 schid)
+{
+	struct kvm_s390_interrupt_info *inti = NULL;
+	int isc;
+
+	for (isc = 0; isc <= MAX_ISC && !inti; isc++) {
+		if (isc_mask & isc_to_isc_bits(isc))
+			inti = get_io_int(kvm, isc, schid);
+	}
+	return inti;
+}
+
+#define SCCB_MASK 0xFFFFFFF8
+#define SCCB_EVENT_PENDING 0x3
+
+static int __inject_service(struct kvm *kvm,
+			     struct kvm_s390_interrupt_info *inti)
+{
+	struct kvm_s390_float_interrupt *fi = &kvm->arch.float_int;
+
+	spin_lock(&fi->lock);
+	fi->srv_signal.ext_params |= inti->ext.ext_params & SCCB_EVENT_PENDING;
+	/*
+	 * Early versions of the QEMU s390 bios will inject several
+	 * service interrupts after another without handling a
+	 * condition code indicating busy.
+	 * We will silently ignore those superfluous sccb values.
+	 * A future version of QEMU will take care of serialization
+	 * of servc requests
+	 */
+	if (fi->srv_signal.ext_params & SCCB_MASK)
+		goto out;
+	fi->srv_signal.ext_params |= inti->ext.ext_params & SCCB_MASK;
+	set_bit(IRQ_PEND_EXT_SERVICE, &fi->pending_irqs);
+out:
+	spin_unlock(&fi->lock);
+	kfree(inti);
+	return 0;
+}
+
+static int __inject_virtio(struct kvm *kvm,
+			    struct kvm_s390_interrupt_info *inti)
+{
+	struct kvm_s390_float_interrupt *fi = &kvm->arch.float_int;
+
+	spin_lock(&fi->lock);
+	if (fi->counters[FIRQ_CNTR_VIRTIO] >= KVM_S390_MAX_VIRTIO_IRQS) {
+		spin_unlock(&fi->lock);
+		return -EBUSY;
+	}
+	fi->counters[FIRQ_CNTR_VIRTIO] += 1;
+	list_add_tail(&inti->list, &fi->lists[FIRQ_LIST_VIRTIO]);
+	set_bit(IRQ_PEND_VIRTIO, &fi->pending_irqs);
+	spin_unlock(&fi->lock);
+	return 0;
+}
+
+static int __inject_pfault_done(struct kvm *kvm,
+				 struct kvm_s390_interrupt_info *inti)
+{
+	struct kvm_s390_float_interrupt *fi = &kvm->arch.float_int;
+
+	spin_lock(&fi->lock);
+	if (fi->counters[FIRQ_CNTR_PFAULT] >=
+		(ASYNC_PF_PER_VCPU * KVM_MAX_VCPUS)) {
+		spin_unlock(&fi->lock);
+		return -EBUSY;
+	}
+	fi->counters[FIRQ_CNTR_PFAULT] += 1;
+	list_add_tail(&inti->list, &fi->lists[FIRQ_LIST_PFAULT]);
+	set_bit(IRQ_PEND_PFAULT_DONE, &fi->pending_irqs);
+	spin_unlock(&fi->lock);
+	return 0;
+}
+
+#define CR_PENDING_SUBCLASS 28
+static int __inject_float_mchk(struct kvm *kvm,
+				struct kvm_s390_interrupt_info *inti)
+{
+	struct kvm_s390_float_interrupt *fi = &kvm->arch.float_int;
+
+	spin_lock(&fi->lock);
+	fi->mchk.cr14 |= inti->mchk.cr14 & (1UL << CR_PENDING_SUBCLASS);
+	fi->mchk.mcic |= inti->mchk.mcic;
+	set_bit(IRQ_PEND_MCHK_REP, &fi->pending_irqs);
+	spin_unlock(&fi->lock);
+	kfree(inti);
+	return 0;
+}
+
+static int __inject_io(struct kvm *kvm, struct kvm_s390_interrupt_info *inti)
 {
 	struct kvm_s390_float_interrupt *fi;
-	struct kvm_s390_interrupt_info *inti, *iter;
+	struct list_head *list;
+	int isc;
 
-	if ((!schid && !cr6) || (schid && cr6))
-		return NULL;
 	fi = &kvm->arch.float_int;
 	spin_lock(&fi->lock);
-	inti = NULL;
-	list_for_each_entry(iter, &fi->list, list) {
-		if (!is_ioint(iter->type))
-			continue;
-		if (cr6 &&
-		    ((cr6 & int_word_to_isc_bits(iter->io.io_int_word)) == 0))
-			continue;
-		if (schid) {
-			if (((schid & 0x00000000ffff0000) >> 16) !=
-			    iter->io.subchannel_id)
-				continue;
-			if ((schid & 0x000000000000ffff) !=
-			    iter->io.subchannel_nr)
-				continue;
-		}
-		inti = iter;
-		break;
-	}
-	if (inti) {
-		list_del_init(&inti->list);
-		fi->irq_count--;
+	if (fi->counters[FIRQ_CNTR_IO] >= KVM_S390_MAX_FLOAT_IRQS) {
+		spin_unlock(&fi->lock);
+		return -EBUSY;
 	}
-	if (list_empty(&fi->list))
-		atomic_set(&fi->active, 0);
+	fi->counters[FIRQ_CNTR_IO] += 1;
+
+	isc = int_word_to_isc(inti->io.io_int_word);
+	list = &fi->lists[FIRQ_LIST_IO_ISC_0 + isc];
+	list_add_tail(&inti->list, list);
+	set_bit(IRQ_PEND_IO_ISC_0 + isc, &fi->pending_irqs);
 	spin_unlock(&fi->lock);
-	return inti;
+	return 0;
 }
 
 static int __inject_vm(struct kvm *kvm, struct kvm_s390_interrupt_info *inti)
 {
 	struct kvm_s390_local_interrupt *li;
 	struct kvm_s390_float_interrupt *fi;
-	struct kvm_s390_interrupt_info *iter;
 	struct kvm_vcpu *dst_vcpu = NULL;
 	int sigcpu;
-	int rc = 0;
+	u64 type = READ_ONCE(inti->type);
+	int rc;
 
 	fi = &kvm->arch.float_int;
-	spin_lock(&fi->lock);
-	if (fi->irq_count >= KVM_S390_MAX_FLOAT_IRQS) {
+
+	switch (type) {
+	case KVM_S390_MCHK:
+		rc = __inject_float_mchk(kvm, inti);
+		break;
+	case KVM_S390_INT_VIRTIO:
+		rc = __inject_virtio(kvm, inti);
+		break;
+	case KVM_S390_INT_SERVICE:
+		rc = __inject_service(kvm, inti);
+		break;
+	case KVM_S390_INT_PFAULT_DONE:
+		rc = __inject_pfault_done(kvm, inti);
+		break;
+	case KVM_S390_INT_IO_MIN...KVM_S390_INT_IO_MAX:
+		rc = __inject_io(kvm, inti);
+		break;
+	default:
 		rc = -EINVAL;
-		goto unlock_fi;
 	}
-	fi->irq_count++;
-	if (!is_ioint(inti->type)) {
-		list_add_tail(&inti->list, &fi->list);
-	} else {
-		u64 isc_bits = int_word_to_isc_bits(inti->io.io_int_word);
+	if (rc)
+		return rc;
 
-		/* Keep I/O interrupts sorted in isc order. */
-		list_for_each_entry(iter, &fi->list, list) {
-			if (!is_ioint(iter->type))
-				continue;
-			if (int_word_to_isc_bits(iter->io.io_int_word)
-			    <= isc_bits)
-				continue;
-			break;
-		}
-		list_add_tail(&inti->list, &iter->list);
-	}
-	atomic_set(&fi->active, 1);
-	if (atomic_read(&kvm->online_vcpus) == 0)
-		goto unlock_fi;
 	sigcpu = find_first_bit(fi->idle_mask, KVM_MAX_VCPUS);
 	if (sigcpu == KVM_MAX_VCPUS) {
 		do {
@@ -1257,7 +1384,7 @@ static int __inject_vm(struct kvm *kvm, struct kvm_s390_interrupt_info *inti)
 	dst_vcpu = kvm_get_vcpu(kvm, sigcpu);
 	li = &dst_vcpu->arch.local_int;
 	spin_lock(&li->lock);
-	switch (inti->type) {
+	switch (type) {
 	case KVM_S390_MCHK:
 		atomic_set_mask(CPUSTAT_STOP_INT, li->cpuflags);
 		break;
@@ -1270,9 +1397,8 @@ static int __inject_vm(struct kvm *kvm, struct kvm_s390_interrupt_info *inti)
 	}
 	spin_unlock(&li->lock);
 	kvm_s390_vcpu_wakeup(kvm_get_vcpu(kvm, sigcpu));
-unlock_fi:
-	spin_unlock(&fi->lock);
-	return rc;
+	return 0;
+
 }
 
 int kvm_s390_inject_vm(struct kvm *kvm,
@@ -1332,10 +1458,10 @@ int kvm_s390_inject_vm(struct kvm *kvm,
 	return rc;
 }
 
-void kvm_s390_reinject_io_int(struct kvm *kvm,
+int kvm_s390_reinject_io_int(struct kvm *kvm,
 			      struct kvm_s390_interrupt_info *inti)
 {
-	__inject_vm(kvm, inti);
+	return __inject_vm(kvm, inti);
 }
 
 int s390int_to_s390irq(struct kvm_s390_interrupt *s390int,
@@ -1388,12 +1514,10 @@ void kvm_s390_clear_stop_irq(struct kvm_vcpu *vcpu)
 	spin_unlock(&li->lock);
 }
 
-int kvm_s390_inject_vcpu(struct kvm_vcpu *vcpu, struct kvm_s390_irq *irq)
+static int do_inject_vcpu(struct kvm_vcpu *vcpu, struct kvm_s390_irq *irq)
 {
-	struct kvm_s390_local_interrupt *li = &vcpu->arch.local_int;
 	int rc;
 
-	spin_lock(&li->lock);
 	switch (irq->type) {
 	case KVM_S390_PROGRAM_INT:
 		VCPU_EVENT(vcpu, 3, "inject: program check %d (from user)",
@@ -1433,83 +1557,130 @@ int kvm_s390_inject_vcpu(struct kvm_vcpu *vcpu, struct kvm_s390_irq *irq)
 	default:
 		rc = -EINVAL;
 	}
+
+	return rc;
+}
+
+int kvm_s390_inject_vcpu(struct kvm_vcpu *vcpu, struct kvm_s390_irq *irq)
+{
+	struct kvm_s390_local_interrupt *li = &vcpu->arch.local_int;
+	int rc;
+
+	spin_lock(&li->lock);
+	rc = do_inject_vcpu(vcpu, irq);
 	spin_unlock(&li->lock);
 	if (!rc)
 		kvm_s390_vcpu_wakeup(vcpu);
 	return rc;
 }
 
-void kvm_s390_clear_float_irqs(struct kvm *kvm)
+static inline void clear_irq_list(struct list_head *_list)
 {
-	struct kvm_s390_float_interrupt *fi;
-	struct kvm_s390_interrupt_info	*n, *inti = NULL;
+	struct kvm_s390_interrupt_info *inti, *n;
 
-	fi = &kvm->arch.float_int;
-	spin_lock(&fi->lock);
-	list_for_each_entry_safe(inti, n, &fi->list, list) {
+	list_for_each_entry_safe(inti, n, _list, list) {
 		list_del(&inti->list);
 		kfree(inti);
 	}
-	fi->irq_count = 0;
-	atomic_set(&fi->active, 0);
-	spin_unlock(&fi->lock);
 }
 
-static inline int copy_irq_to_user(struct kvm_s390_interrupt_info *inti,
-				   u8 *addr)
+static void inti_to_irq(struct kvm_s390_interrupt_info *inti,
+		       struct kvm_s390_irq *irq)
 {
-	struct kvm_s390_irq __user *uptr = (struct kvm_s390_irq __user *) addr;
-	struct kvm_s390_irq irq = {0};
-
-	irq.type = inti->type;
+	irq->type = inti->type;
 	switch (inti->type) {
 	case KVM_S390_INT_PFAULT_INIT:
 	case KVM_S390_INT_PFAULT_DONE:
 	case KVM_S390_INT_VIRTIO:
-	case KVM_S390_INT_SERVICE:
-		irq.u.ext = inti->ext;
+		irq->u.ext = inti->ext;
 		break;
 	case KVM_S390_INT_IO_MIN...KVM_S390_INT_IO_MAX:
-		irq.u.io = inti->io;
+		irq->u.io = inti->io;
 		break;
-	case KVM_S390_MCHK:
-		irq.u.mchk = inti->mchk;
-		break;
-	default:
-		return -EINVAL;
 	}
+}
 
-	if (copy_to_user(uptr, &irq, sizeof(irq)))
-		return -EFAULT;
+void kvm_s390_clear_float_irqs(struct kvm *kvm)
+{
+	struct kvm_s390_float_interrupt *fi = &kvm->arch.float_int;
+	int i;
 
-	return 0;
-}
+	spin_lock(&fi->lock);
+	for (i = 0; i < FIRQ_LIST_COUNT; i++)
+		clear_irq_list(&fi->lists[i]);
+	for (i = 0; i < FIRQ_MAX_COUNT; i++)
+		fi->counters[i] = 0;
+	spin_unlock(&fi->lock);
+};
 
-static int get_all_floating_irqs(struct kvm *kvm, __u8 *buf, __u64 len)
+static int get_all_floating_irqs(struct kvm *kvm, u8 __user *usrbuf, u64 len)
 {
 	struct kvm_s390_interrupt_info *inti;
 	struct kvm_s390_float_interrupt *fi;
+	struct kvm_s390_irq *buf;
+	struct kvm_s390_irq *irq;
+	int max_irqs;
 	int ret = 0;
 	int n = 0;
+	int i;
+
+	if (len > KVM_S390_FLIC_MAX_BUFFER || len == 0)
+		return -EINVAL;
+
+	/*
+	 * We are already using -ENOMEM to signal
+	 * userspace it may retry with a bigger buffer,
+	 * so we need to use something else for this case
+	 */
+	buf = vzalloc(len);
+	if (!buf)
+		return -ENOBUFS;
+
+	max_irqs = len / sizeof(struct kvm_s390_irq);
 
 	fi = &kvm->arch.float_int;
 	spin_lock(&fi->lock);
-
-	list_for_each_entry(inti, &fi->list, list) {
-		if (len < sizeof(struct kvm_s390_irq)) {
+	for (i = 0; i < FIRQ_LIST_COUNT; i++) {
+		list_for_each_entry(inti, &fi->lists[i], list) {
+			if (n == max_irqs) {
+				/* signal userspace to try again */
+				ret = -ENOMEM;
+				goto out;
+			}
+			inti_to_irq(inti, &buf[n]);
+			n++;
+		}
+	}
+	if (test_bit(IRQ_PEND_EXT_SERVICE, &fi->pending_irqs)) {
+		if (n == max_irqs) {
 			/* signal userspace to try again */
 			ret = -ENOMEM;
-			break;
+			goto out;
 		}
-		ret = copy_irq_to_user(inti, buf);
-		if (ret)
-			break;
-		buf += sizeof(struct kvm_s390_irq);
-		len -= sizeof(struct kvm_s390_irq);
+		irq = (struct kvm_s390_irq *) &buf[n];
+		irq->type = KVM_S390_INT_SERVICE;
+		irq->u.ext = fi->srv_signal;
 		n++;
 	}
+	if (test_bit(IRQ_PEND_MCHK_REP, &fi->pending_irqs)) {
+		if (n == max_irqs) {
+				/* signal userspace to try again */
+				ret = -ENOMEM;
+				goto out;
+		}
+		irq = (struct kvm_s390_irq *) &buf[n];
+		irq->type = KVM_S390_MCHK;
+		irq->u.mchk = fi->mchk;
+		n++;
+}
 
+out:
 	spin_unlock(&fi->lock);
+	if (!ret && n > 0) {
+		if (copy_to_user(usrbuf, buf, sizeof(struct kvm_s390_irq) * n))
+			ret = -EFAULT;
+	}
+	vfree(buf);
 
 	return ret < 0 ? ret : n;
 }
@@ -1520,7 +1691,7 @@ static int flic_get_attr(struct kvm_device *dev, struct kvm_device_attr *attr)
 
 	switch (attr->group) {
 	case KVM_DEV_FLIC_GET_ALL_IRQS:
-		r = get_all_floating_irqs(dev->kvm, (u8 *) attr->addr,
+		r = get_all_floating_irqs(dev->kvm, (u8 __user *) attr->addr,
 					  attr->attr);
 		break;
 	default:
@@ -1952,3 +2123,143 @@ int kvm_set_msi(struct kvm_kernel_irq_routing_entry *e, struct kvm *kvm,
 {
 	return -EINVAL;
 }
+
+int kvm_s390_set_irq_state(struct kvm_vcpu *vcpu, void __user *irqstate, int len)
+{
+	struct kvm_s390_local_interrupt *li = &vcpu->arch.local_int;
+	struct kvm_s390_irq *buf;
+	int r = 0;
+	int n;
+
+	buf = vmalloc(len);
+	if (!buf)
+		return -ENOMEM;
+
+	if (copy_from_user((void *) buf, irqstate, len)) {
+		r = -EFAULT;
+		goto out_free;
+	}
+
+	/*
+	 * Don't allow setting the interrupt state
+	 * when there are already interrupts pending
+	 */
+	spin_lock(&li->lock);
+	if (li->pending_irqs) {
+		r = -EBUSY;
+		goto out_unlock;
+	}
+
+	for (n = 0; n < len / sizeof(*buf); n++) {
+		r = do_inject_vcpu(vcpu, &buf[n]);
+		if (r)
+			break;
+	}
+
+out_unlock:
+	spin_unlock(&li->lock);
+out_free:
+	vfree(buf);
+
+	return r;
+}
+
+static void store_local_irq(struct kvm_s390_local_interrupt *li,
+			    struct kvm_s390_irq *irq,
+			    unsigned long irq_type)
+{
+	switch (irq_type) {
+	case IRQ_PEND_MCHK_EX:
+	case IRQ_PEND_MCHK_REP:
+		irq->type = KVM_S390_MCHK;
+		irq->u.mchk = li->irq.mchk;
+		break;
+	case IRQ_PEND_PROG:
+		irq->type = KVM_S390_PROGRAM_INT;
+		irq->u.pgm = li->irq.pgm;
+		break;
+	case IRQ_PEND_PFAULT_INIT:
+		irq->type = KVM_S390_INT_PFAULT_INIT;
+		irq->u.ext = li->irq.ext;
+		break;
+	case IRQ_PEND_EXT_EXTERNAL:
+		irq->type = KVM_S390_INT_EXTERNAL_CALL;
+		irq->u.extcall = li->irq.extcall;
+		break;
+	case IRQ_PEND_EXT_CLOCK_COMP:
+		irq->type = KVM_S390_INT_CLOCK_COMP;
+		break;
+	case IRQ_PEND_EXT_CPU_TIMER:
+		irq->type = KVM_S390_INT_CPU_TIMER;
+		break;
+	case IRQ_PEND_SIGP_STOP:
+		irq->type = KVM_S390_SIGP_STOP;
+		irq->u.stop = li->irq.stop;
+		break;
+	case IRQ_PEND_RESTART:
+		irq->type = KVM_S390_RESTART;
+		break;
+	case IRQ_PEND_SET_PREFIX:
+		irq->type = KVM_S390_SIGP_SET_PREFIX;
+		irq->u.prefix = li->irq.prefix;
+		break;
+	}
+}
+
+int kvm_s390_get_irq_state(struct kvm_vcpu *vcpu, __u8 __user *buf, int len)
+{
+	uint8_t sigp_ctrl = vcpu->kvm->arch.sca->cpu[vcpu->vcpu_id].sigp_ctrl;
+	unsigned long sigp_emerg_pending[BITS_TO_LONGS(KVM_MAX_VCPUS)];
+	struct kvm_s390_local_interrupt *li = &vcpu->arch.local_int;
+	unsigned long pending_irqs;
+	struct kvm_s390_irq irq;
+	unsigned long irq_type;
+	int cpuaddr;
+	int n = 0;
+
+	spin_lock(&li->lock);
+	pending_irqs = li->pending_irqs;
+	memcpy(&sigp_emerg_pending, &li->sigp_emerg_pending,
+	       sizeof(sigp_emerg_pending));
+	spin_unlock(&li->lock);
+
+	for_each_set_bit(irq_type, &pending_irqs, IRQ_PEND_COUNT) {
+		memset(&irq, 0, sizeof(irq));
+		if (irq_type == IRQ_PEND_EXT_EMERGENCY)
+			continue;
+		if (n + sizeof(irq) > len)
+			return -ENOBUFS;
+		store_local_irq(&vcpu->arch.local_int, &irq, irq_type);
+		if (copy_to_user(&buf[n], &irq, sizeof(irq)))
+			return -EFAULT;
+		n += sizeof(irq);
+	}
+
+	if (test_bit(IRQ_PEND_EXT_EMERGENCY, &pending_irqs)) {
+		for_each_set_bit(cpuaddr, sigp_emerg_pending, KVM_MAX_VCPUS) {
+			memset(&irq, 0, sizeof(irq));
+			if (n + sizeof(irq) > len)
+				return -ENOBUFS;
+			irq.type = KVM_S390_INT_EMERGENCY;
+			irq.u.emerg.code = cpuaddr;
+			if (copy_to_user(&buf[n], &irq, sizeof(irq)))
+				return -EFAULT;
+			n += sizeof(irq);
+		}
+	}
+
+	if ((sigp_ctrl & SIGP_CTRL_C) &&
+	    (atomic_read(&vcpu->arch.sie_block->cpuflags) &
+	     CPUSTAT_ECALL_PEND)) {
+		if (n + sizeof(irq) > len)
+			return -ENOBUFS;
+		memset(&irq, 0, sizeof(irq));
+		irq.type = KVM_S390_INT_EXTERNAL_CALL;
+		irq.u.extcall.code = sigp_ctrl & SIGP_CTRL_SCN_MASK;
+		if (copy_to_user(&buf[n], &irq, sizeof(irq)))
+			return -EFAULT;
+		n += sizeof(irq);
+	}
+
+	return n;
+}
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index 0c36239..afa2bd7 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -25,11 +25,13 @@
 #include <linux/random.h>
 #include <linux/slab.h>
 #include <linux/timer.h>
+#include <linux/vmalloc.h>
 #include <asm/asm-offsets.h>
 #include <asm/lowcore.h>
 #include <asm/pgtable.h>
 #include <asm/nmi.h>
 #include <asm/switch_to.h>
+#include <asm/isc.h>
 #include <asm/sclp.h>
 #include "kvm-s390.h"
 #include "gaccess.h"
@@ -38,6 +40,11 @@
 #include "trace.h"
 #include "trace-s390.h"
 
+#define MEM_OP_MAX_SIZE 65536	/* Maximum transfer size for KVM_S390_MEM_OP */
+#define LOCAL_IRQS 32
+#define VCPU_IRQS_MAX_BUF (sizeof(struct kvm_s390_irq) * \
+			   (KVM_MAX_VCPUS + LOCAL_IRQS))
+
 #define VCPU_STAT(x) offsetof(struct kvm_vcpu, stat.x), KVM_STAT_VCPU
 
 struct kvm_stats_debugfs_item debugfs_entries[] = {
@@ -87,6 +94,7 @@ struct kvm_stats_debugfs_item debugfs_entries[] = {
 	{ "instruction_sigp_stop", VCPU_STAT(instruction_sigp_stop) },
 	{ "instruction_sigp_stop_store_status", VCPU_STAT(instruction_sigp_stop_store_status) },
 	{ "instruction_sigp_store_status", VCPU_STAT(instruction_sigp_store_status) },
+	{ "instruction_sigp_store_adtl_status", VCPU_STAT(instruction_sigp_store_adtl_status) },
 	{ "instruction_sigp_set_arch", VCPU_STAT(instruction_sigp_arch) },
 	{ "instruction_sigp_set_prefix", VCPU_STAT(instruction_sigp_prefix) },
 	{ "instruction_sigp_restart", VCPU_STAT(instruction_sigp_restart) },
@@ -101,8 +109,8 @@ struct kvm_stats_debugfs_item debugfs_entries[] = {
 
 /* upper facilities limit for kvm */
 unsigned long kvm_s390_fac_list_mask[] = {
-	0xff82fffbf4fc2000UL,
-	0x005c000000000000UL,
+	0xffe6fffbfcfdfc40UL,
+	0x205c800000000000UL,
 };
 
 unsigned long kvm_s390_fac_list_mask_size(void)
@@ -165,16 +173,22 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
 	case KVM_CAP_ONE_REG:
 	case KVM_CAP_ENABLE_CAP:
 	case KVM_CAP_S390_CSS_SUPPORT:
-	case KVM_CAP_IRQFD:
 	case KVM_CAP_IOEVENTFD:
 	case KVM_CAP_DEVICE_CTRL:
 	case KVM_CAP_ENABLE_CAP_VM:
 	case KVM_CAP_S390_IRQCHIP:
 	case KVM_CAP_VM_ATTRIBUTES:
 	case KVM_CAP_MP_STATE:
+	case KVM_CAP_S390_INJECT_IRQ:
 	case KVM_CAP_S390_USER_SIGP:
+	case KVM_CAP_S390_USER_STSI:
+	case KVM_CAP_S390_SKEYS:
+	case KVM_CAP_S390_IRQ_STATE:
 		r = 1;
 		break;
+	case KVM_CAP_S390_MEM_OP:
+		r = MEM_OP_MAX_SIZE;
+		break;
 	case KVM_CAP_NR_VCPUS:
 	case KVM_CAP_MAX_VCPUS:
 		r = KVM_MAX_VCPUS;
@@ -185,6 +199,9 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
 	case KVM_CAP_S390_COW:
 		r = MACHINE_HAS_ESOP;
 		break;
+	case KVM_CAP_S390_VECTOR_REGISTERS:
+		r = MACHINE_HAS_VX;
+		break;
 	default:
 		r = 0;
 	}
@@ -265,6 +282,18 @@ static int kvm_vm_ioctl_enable_cap(struct kvm *kvm, struct kvm_enable_cap *cap)
 		kvm->arch.user_sigp = 1;
 		r = 0;
 		break;
+	case KVM_CAP_S390_VECTOR_REGISTERS:
+		if (MACHINE_HAS_VX) {
+			set_kvm_facility(kvm->arch.model.fac->mask, 129);
+			set_kvm_facility(kvm->arch.model.fac->list, 129);
+			r = 0;
+		} else
+			r = -EINVAL;
+		break;
+	case KVM_CAP_S390_USER_STSI:
+		kvm->arch.user_stsi = 1;
+		r = 0;
+		break;
 	default:
 		r = -EINVAL;
 		break;
@@ -522,7 +551,7 @@ static int kvm_s390_set_processor(struct kvm *kvm, struct kvm_device_attr *attr)
 		memcpy(&kvm->arch.model.cpu_id, &proc->cpuid,
 		       sizeof(struct cpuid));
 		kvm->arch.model.ibc = proc->ibc;
-		memcpy(kvm->arch.model.fac->kvm, proc->fac_list,
+		memcpy(kvm->arch.model.fac->list, proc->fac_list,
 		       S390_ARCH_FAC_LIST_SIZE_BYTE);
 	} else
 		ret = -EFAULT;
@@ -556,7 +585,7 @@ static int kvm_s390_get_processor(struct kvm *kvm, struct kvm_device_attr *attr)
 	}
 	memcpy(&proc->cpuid, &kvm->arch.model.cpu_id, sizeof(struct cpuid));
 	proc->ibc = kvm->arch.model.ibc;
-	memcpy(&proc->fac_list, kvm->arch.model.fac->kvm, S390_ARCH_FAC_LIST_SIZE_BYTE);
+	memcpy(&proc->fac_list, kvm->arch.model.fac->list, S390_ARCH_FAC_LIST_SIZE_BYTE);
 	if (copy_to_user((void __user *)attr->addr, proc, sizeof(*proc)))
 		ret = -EFAULT;
 	kfree(proc);
@@ -576,10 +605,10 @@ static int kvm_s390_get_machine(struct kvm *kvm, struct kvm_device_attr *attr)
 	}
 	get_cpu_id((struct cpuid *) &mach->cpuid);
 	mach->ibc = sclp_get_ibc();
-	memcpy(&mach->fac_mask, kvm_s390_fac_list_mask,
-	       kvm_s390_fac_list_mask_size() * sizeof(u64));
+	memcpy(&mach->fac_mask, kvm->arch.model.fac->mask,
+	       S390_ARCH_FAC_LIST_SIZE_BYTE);
 	memcpy((unsigned long *)&mach->fac_list, S390_lowcore.stfle_fac_list,
-	       S390_ARCH_FAC_LIST_SIZE_U64);
+	       S390_ARCH_FAC_LIST_SIZE_BYTE);
 	if (copy_to_user((void __user *)attr->addr, mach, sizeof(*mach)))
 		ret = -EFAULT;
 	kfree(mach);
@@ -709,6 +738,108 @@ static int kvm_s390_vm_has_attr(struct kvm *kvm, struct kvm_device_attr *attr)
 	return ret;
 }
 
+static long kvm_s390_get_skeys(struct kvm *kvm, struct kvm_s390_skeys *args)
+{
+	uint8_t *keys;
+	uint64_t hva;
+	unsigned long curkey;
+	int i, r = 0;
+
+	if (args->flags != 0)
+		return -EINVAL;
+
+	/* Is this guest using storage keys? */
+	if (!mm_use_skey(current->mm))
+		return KVM_S390_GET_SKEYS_NONE;
+
+	/* Enforce sane limit on memory allocation */
+	if (args->count < 1 || args->count > KVM_S390_SKEYS_MAX)
+		return -EINVAL;
+
+	keys = kmalloc_array(args->count, sizeof(uint8_t),
+			     GFP_KERNEL | __GFP_NOWARN);
+	if (!keys)
+		keys = vmalloc(sizeof(uint8_t) * args->count);
+	if (!keys)
+		return -ENOMEM;
+
+	for (i = 0; i < args->count; i++) {
+		hva = gfn_to_hva(kvm, args->start_gfn + i);
+		if (kvm_is_error_hva(hva)) {
+			r = -EFAULT;
+			goto out;
+		}
+
+		curkey = get_guest_storage_key(current->mm, hva);
+		if (IS_ERR_VALUE(curkey)) {
+			r = curkey;
+			goto out;
+		}
+		keys[i] = curkey;
+	}
+
+	r = copy_to_user((uint8_t __user *)args->skeydata_addr, keys,
+			 sizeof(uint8_t) * args->count);
+	if (r)
+		r = -EFAULT;
+out:
+	kvfree(keys);
+	return r;
+}
+
+static long kvm_s390_set_skeys(struct kvm *kvm, struct kvm_s390_skeys *args)
+{
+	uint8_t *keys;
+	uint64_t hva;
+	int i, r = 0;
+
+	if (args->flags != 0)
+		return -EINVAL;
+
+	/* Enforce sane limit on memory allocation */
+	if (args->count < 1 || args->count > KVM_S390_SKEYS_MAX)
+		return -EINVAL;
+
+	keys = kmalloc_array(args->count, sizeof(uint8_t),
+			     GFP_KERNEL | __GFP_NOWARN);
+	if (!keys)
+		keys = vmalloc(sizeof(uint8_t) * args->count);
+	if (!keys)
+		return -ENOMEM;
+
+	r = copy_from_user(keys, (uint8_t __user *)args->skeydata_addr,
+			   sizeof(uint8_t) * args->count);
+	if (r) {
+		r = -EFAULT;
+		goto out;
+	}
+
+	/* Enable storage key handling for the guest */
+	s390_enable_skey();
+
+	for (i = 0; i < args->count; i++) {
+		hva = gfn_to_hva(kvm, args->start_gfn + i);
+		if (kvm_is_error_hva(hva)) {
+			r = -EFAULT;
+			goto out;
+		}
+
+		/* Lowest order bit is reserved */
+		if (keys[i] & 0x01) {
+			r = -EINVAL;
+			goto out;
+		}
+
+		r = set_guest_storage_key(current->mm, hva,
+					  (unsigned long)keys[i], 0);
+		if (r)
+			goto out;
+	}
+out:
+	kvfree(keys);
+	return r;
+}
+
 long kvm_arch_vm_ioctl(struct file *filp,
 		       unsigned int ioctl, unsigned long arg)
 {
@@ -768,6 +899,26 @@ long kvm_arch_vm_ioctl(struct file *filp,
 		r = kvm_s390_vm_has_attr(kvm, &attr);
 		break;
 	}
+	case KVM_S390_GET_SKEYS: {
+		struct kvm_s390_skeys args;
+
+		r = -EFAULT;
+		if (copy_from_user(&args, argp,
+				   sizeof(struct kvm_s390_skeys)))
+			break;
+		r = kvm_s390_get_skeys(kvm, &args);
+		break;
+	}
+	case KVM_S390_SET_SKEYS: {
+		struct kvm_s390_skeys args;
+
+		r = -EFAULT;
+		if (copy_from_user(&args, argp,
+				   sizeof(struct kvm_s390_skeys)))
+			break;
+		r = kvm_s390_set_skeys(kvm, &args);
+		break;
+	}
 	default:
 		r = -ENOTTY;
 	}
@@ -778,15 +929,18 @@ long kvm_arch_vm_ioctl(struct file *filp,
 static int kvm_s390_query_ap_config(u8 *config)
 {
 	u32 fcn_code = 0x04000000UL;
-	u32 cc;
+	u32 cc = 0;
 
+	memset(config, 0, 128);
 	asm volatile(
 		"lgr 0,%1\n"
 		"lgr 2,%2\n"
 		".long 0xb2af0000\n"		/* PQAP(QCI) */
-		"ipm %0\n"
+		"0: ipm %0\n"
 		"srl %0,28\n"
-		: "=r" (cc)
+		"1:\n"
+		EX_TABLE(0b, 1b)
+		: "+r" (cc)
 		: "r" (fcn_code), "r" (config)
 		: "cc", "0", "2", "memory"
 	);
@@ -839,9 +993,13 @@ static int kvm_s390_crypto_init(struct kvm *kvm)
 
 	kvm_s390_set_crycb_format(kvm);
 
-	/* Disable AES/DEA protected key functions by default */
-	kvm->arch.crypto.aes_kw = 0;
-	kvm->arch.crypto.dea_kw = 0;
+	/* Enable AES/DEA protected key functions by default */
+	kvm->arch.crypto.aes_kw = 1;
+	kvm->arch.crypto.dea_kw = 1;
+	get_random_bytes(kvm->arch.crypto.crycb->aes_wrapping_key_mask,
+			 sizeof(kvm->arch.crypto.crycb->aes_wrapping_key_mask));
+	get_random_bytes(kvm->arch.crypto.crycb->dea_wrapping_key_mask,
+			 sizeof(kvm->arch.crypto.crycb->dea_wrapping_key_mask));
 
 	return 0;
 }
@@ -881,53 +1039,43 @@ int kvm_arch_init_vm(struct kvm *kvm, unsigned long type)
 
 	kvm->arch.dbf = debug_register(debug_name, 8, 2, 8 * sizeof(long));
 	if (!kvm->arch.dbf)
-		goto out_nodbf;
+		goto out_err;
 
 	/*
 	 * The architectural maximum amount of facilities is 16 kbit. To store
 	 * this amount, 2 kbyte of memory is required. Thus we need a full
-	 * page to hold the active copy (arch.model.fac->sie) and the current
-	 * facilities set (arch.model.fac->kvm). Its address size has to be
+	 * page to hold the guest facility list (arch.model.fac->list) and the
+	 * facility mask (arch.model.fac->mask). Its address size has to be
 	 * 31 bits and word aligned.
 	 */
 	kvm->arch.model.fac =
-		(struct s390_model_fac *) get_zeroed_page(GFP_KERNEL | GFP_DMA);
+		(struct kvm_s390_fac *) get_zeroed_page(GFP_KERNEL | GFP_DMA);
 	if (!kvm->arch.model.fac)
-		goto out_nofac;
-
-	memcpy(kvm->arch.model.fac->kvm, S390_lowcore.stfle_fac_list,
-	       S390_ARCH_FAC_LIST_SIZE_U64);
-
-	/*
-	 * If this KVM host runs *not* in a LPAR, relax the facility bits
-	 * of the kvm facility mask by all missing facilities. This will allow
-	 * to determine the right CPU model by means of the remaining facilities.
-	 * Live guest migration must prohibit the migration of KVMs running in
-	 * a LPAR to non LPAR hosts.
-	 */
-	if (!MACHINE_IS_LPAR)
-		for (i = 0; i < kvm_s390_fac_list_mask_size(); i++)
-			kvm_s390_fac_list_mask[i] &= kvm->arch.model.fac->kvm[i];
+		goto out_err;
 
-	/*
-	 * Apply the kvm facility mask to limit the kvm supported/tolerated
-	 * facility list.
-	 */
+	/* Populate the facility mask initially. */
+	memcpy(kvm->arch.model.fac->mask, S390_lowcore.stfle_fac_list,
+	       S390_ARCH_FAC_LIST_SIZE_BYTE);
 	for (i = 0; i < S390_ARCH_FAC_LIST_SIZE_U64; i++) {
 		if (i < kvm_s390_fac_list_mask_size())
-			kvm->arch.model.fac->kvm[i] &= kvm_s390_fac_list_mask[i];
+			kvm->arch.model.fac->mask[i] &= kvm_s390_fac_list_mask[i];
 		else
-			kvm->arch.model.fac->kvm[i] = 0UL;
+			kvm->arch.model.fac->mask[i] = 0UL;
 	}
 
+	/* Populate the facility list initially. */
+	memcpy(kvm->arch.model.fac->list, kvm->arch.model.fac->mask,
+	       S390_ARCH_FAC_LIST_SIZE_BYTE);
+
 	kvm_s390_get_cpu_id(&kvm->arch.model.cpu_id);
 	kvm->arch.model.ibc = sclp_get_ibc() & 0x0fff;
 
 	if (kvm_s390_crypto_init(kvm) < 0)
-		goto out_crypto;
+		goto out_err;
 
 	spin_lock_init(&kvm->arch.float_int.lock);
-	INIT_LIST_HEAD(&kvm->arch.float_int.list);
+	for (i = 0; i < FIRQ_LIST_COUNT; i++)
+		INIT_LIST_HEAD(&kvm->arch.float_int.lists[i]);
 	init_waitqueue_head(&kvm->arch.ipte_wq);
 	mutex_init(&kvm->arch.ipte_mutex);
 
@@ -939,7 +1087,7 @@ int kvm_arch_init_vm(struct kvm *kvm, unsigned long type)
 	} else {
 		kvm->arch.gmap = gmap_alloc(current->mm, (1UL << 44) - 1);
 		if (!kvm->arch.gmap)
-			goto out_nogmap;
+			goto out_err;
 		kvm->arch.gmap->private = kvm;
 		kvm->arch.gmap->pfault_enabled = 0;
 	}
@@ -951,15 +1099,11 @@ int kvm_arch_init_vm(struct kvm *kvm, unsigned long type)
 	spin_lock_init(&kvm->arch.start_stop_lock);
 
 	return 0;
-out_nogmap:
+out_err:
 	kfree(kvm->arch.crypto.crycb);
-out_crypto:
 	free_page((unsigned long)kvm->arch.model.fac);
-out_nofac:
 	debug_unregister(kvm->arch.dbf);
-out_nodbf:
 	free_page((unsigned long)(kvm->arch.sca));
-out_err:
 	return rc;
 }
 
@@ -1039,6 +1183,8 @@ int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu)
 				    KVM_SYNC_CRS |
 				    KVM_SYNC_ARCH0 |
 				    KVM_SYNC_PFAULT;
+	if (test_kvm_facility(vcpu->kvm, 129))
+		vcpu->run->kvm_valid_regs |= KVM_SYNC_VRS;
 
 	if (kvm_is_ucontrol(vcpu->kvm))
 		return __kvm_ucontrol_vcpu_init(vcpu);
@@ -1049,10 +1195,18 @@ int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu)
 void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
 {
 	save_fp_ctl(&vcpu->arch.host_fpregs.fpc);
-	save_fp_regs(vcpu->arch.host_fpregs.fprs);
+	if (test_kvm_facility(vcpu->kvm, 129))
+		save_vx_regs((__vector128 *)&vcpu->arch.host_vregs->vrs);
+	else
+		save_fp_regs(vcpu->arch.host_fpregs.fprs);
 	save_access_regs(vcpu->arch.host_acrs);
-	restore_fp_ctl(&vcpu->arch.guest_fpregs.fpc);
-	restore_fp_regs(vcpu->arch.guest_fpregs.fprs);
+	if (test_kvm_facility(vcpu->kvm, 129)) {
+		restore_fp_ctl(&vcpu->run->s.regs.fpc);
+		restore_vx_regs((__vector128 *)&vcpu->run->s.regs.vrs);
+	} else {
+		restore_fp_ctl(&vcpu->arch.guest_fpregs.fpc);
+		restore_fp_regs(vcpu->arch.guest_fpregs.fprs);
+	}
 	restore_access_regs(vcpu->run->s.regs.acrs);
 	gmap_enable(vcpu->arch.gmap);
 	atomic_set_mask(CPUSTAT_RUNNING, &vcpu->arch.sie_block->cpuflags);
@@ -1062,11 +1216,19 @@ void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu)
 {
 	atomic_clear_mask(CPUSTAT_RUNNING, &vcpu->arch.sie_block->cpuflags);
 	gmap_disable(vcpu->arch.gmap);
-	save_fp_ctl(&vcpu->arch.guest_fpregs.fpc);
-	save_fp_regs(vcpu->arch.guest_fpregs.fprs);
+	if (test_kvm_facility(vcpu->kvm, 129)) {
+		save_fp_ctl(&vcpu->run->s.regs.fpc);
+		save_vx_regs((__vector128 *)&vcpu->run->s.regs.vrs);
+	} else {
+		save_fp_ctl(&vcpu->arch.guest_fpregs.fpc);
+		save_fp_regs(vcpu->arch.guest_fpregs.fprs);
+	}
 	save_access_regs(vcpu->run->s.regs.acrs);
 	restore_fp_ctl(&vcpu->arch.host_fpregs.fpc);
-	restore_fp_regs(vcpu->arch.host_fpregs.fprs);
+	if (test_kvm_facility(vcpu->kvm, 129))
+		restore_vx_regs((__vector128 *)&vcpu->arch.host_vregs->vrs);
+	else
+		restore_fp_regs(vcpu->arch.host_fpregs.fprs);
 	restore_access_regs(vcpu->arch.host_acrs);
 }
 
@@ -1134,6 +1296,15 @@ int kvm_s390_vcpu_setup_cmma(struct kvm_vcpu *vcpu)
 	return 0;
 }
 
+static void kvm_s390_vcpu_setup_model(struct kvm_vcpu *vcpu)
+{
+	struct kvm_s390_cpu_model *model = &vcpu->kvm->arch.model;
+
+	vcpu->arch.cpu_id = model->cpu_id;
+	vcpu->arch.sie_block->ibc = model->ibc;
+	vcpu->arch.sie_block->fac = (int) (long) model->fac->list;
+}
+
 int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu)
 {
 	int rc = 0;
@@ -1142,6 +1313,8 @@ int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu)
 						    CPUSTAT_SM |
 						    CPUSTAT_STOPPED |
 						    CPUSTAT_GED);
+	kvm_s390_vcpu_setup_model(vcpu);
+
 	vcpu->arch.sie_block->ecb   = 6;
 	if (test_kvm_facility(vcpu->kvm, 50) && test_kvm_facility(vcpu->kvm, 73))
 		vcpu->arch.sie_block->ecb |= 0x10;
@@ -1152,8 +1325,11 @@ int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu)
 		vcpu->arch.sie_block->eca |= 1;
 	if (sclp_has_sigpif())
 		vcpu->arch.sie_block->eca |= 0x10000000U;
-	vcpu->arch.sie_block->ictl |= ICTL_ISKE | ICTL_SSKE | ICTL_RRBE |
-				      ICTL_TPROT;
+	if (test_kvm_facility(vcpu->kvm, 129)) {
+		vcpu->arch.sie_block->eca |= 0x00020000;
+		vcpu->arch.sie_block->ecd |= 0x20000000;
+	}
+	vcpu->arch.sie_block->ictl |= ICTL_ISKE | ICTL_SSKE | ICTL_RRBE;
 
 	if (kvm_s390_cmma_enabled(vcpu->kvm)) {
 		rc = kvm_s390_vcpu_setup_cmma(vcpu);
@@ -1163,13 +1339,6 @@ int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu)
 	hrtimer_init(&vcpu->arch.ckc_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
 	vcpu->arch.ckc_timer.function = kvm_s390_idle_wakeup;
 
-	mutex_lock(&vcpu->kvm->lock);
-	vcpu->arch.cpu_id = vcpu->kvm->arch.model.cpu_id;
-	memcpy(vcpu->kvm->arch.model.fac->sie, vcpu->kvm->arch.model.fac->kvm,
-	       S390_ARCH_FAC_LIST_SIZE_BYTE);
-	vcpu->arch.sie_block->ibc = vcpu->kvm->arch.model.ibc;
-	mutex_unlock(&vcpu->kvm->lock);
-
 	kvm_s390_vcpu_crypto_setup(vcpu);
 
 	return rc;
@@ -1197,6 +1366,7 @@ struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm,
 
 	vcpu->arch.sie_block = &sie_page->sie_block;
 	vcpu->arch.sie_block->itdba = (unsigned long) &sie_page->itdb;
+	vcpu->arch.host_vregs = &sie_page->vregs;
 
 	vcpu->arch.sie_block->icpua = id;
 	if (!kvm_is_ucontrol(kvm)) {
@@ -1212,7 +1382,6 @@ struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm,
 		vcpu->arch.sie_block->scaol = (__u32)(__u64)kvm->arch.sca;
 		set_bit(63 - id, (unsigned long *) &kvm->arch.sca->mcn);
 	}
-	vcpu->arch.sie_block->fac = (int) (long) kvm->arch.model.fac->sie;
 
 	spin_lock_init(&vcpu->arch.local_int.lock);
 	vcpu->arch.local_int.float_int = &kvm->arch.float_int;
@@ -1732,6 +1901,31 @@ static int vcpu_pre_run(struct kvm_vcpu *vcpu)
 	return 0;
 }
 
+static int vcpu_post_run_fault_in_sie(struct kvm_vcpu *vcpu)
+{
+	psw_t *psw = &vcpu->arch.sie_block->gpsw;
+	u8 opcode;
+	int rc;
+
+	VCPU_EVENT(vcpu, 3, "%s", "fault in sie instruction");
+	trace_kvm_s390_sie_fault(vcpu);
+
+	/*
+	 * We want to inject an addressing exception, which is defined as a
+	 * suppressing or terminating exception. However, since we came here
+	 * by a DAT access exception, the PSW still points to the faulting
+	 * instruction since DAT exceptions are nullifying. So we've got
+	 * to look up the current opcode to get the length of the instruction
+	 * to be able to forward the PSW.
+	 */
+	rc = read_guest(vcpu, psw->addr, 0, &opcode, 1);
+	if (rc)
+		return kvm_s390_inject_prog_cond(vcpu, rc);
+	psw->addr = __rewind_psw(*psw, -insn_length(opcode));
+
+	return kvm_s390_inject_program_int(vcpu, PGM_ADDRESSING);
+}
+
 static int vcpu_post_run(struct kvm_vcpu *vcpu, int exit_reason)
 {
 	int rc = -1;
@@ -1763,11 +1957,8 @@ static int vcpu_post_run(struct kvm_vcpu *vcpu, int exit_reason)
 		}
 	}
 
-	if (rc == -1) {
-		VCPU_EVENT(vcpu, 3, "%s", "fault in sie instruction");
-		trace_kvm_s390_sie_fault(vcpu);
-		rc = kvm_s390_inject_program_int(vcpu, PGM_ADDRESSING);
-	}
+	if (rc == -1)
+		rc = vcpu_post_run_fault_in_sie(vcpu);
 
 	memcpy(&vcpu->run->s.regs.gprs[14], &vcpu->arch.sie_block->gg14, 16);
 
@@ -1983,6 +2174,35 @@ int kvm_s390_vcpu_store_status(struct kvm_vcpu *vcpu, unsigned long addr)
 	return kvm_s390_store_status_unloaded(vcpu, addr);
 }
 
+/*
+ * store additional status at address
+ */
+int kvm_s390_store_adtl_status_unloaded(struct kvm_vcpu *vcpu,
+					unsigned long gpa)
+{
+	/* Only bits 0-53 are used for address formation */
+	if (!(gpa & ~0x3ff))
+		return 0;
+
+	return write_guest_abs(vcpu, gpa & ~0x3ff,
+			       (void *)&vcpu->run->s.regs.vrs, 512);
+}
+
+int kvm_s390_vcpu_store_adtl_status(struct kvm_vcpu *vcpu, unsigned long addr)
+{
+	if (!test_kvm_facility(vcpu->kvm, 129))
+		return 0;
+
+	/*
+	 * The guest VXRS are in the host VXRs due to the lazy
+	 * copying in vcpu load/put. Let's update our copies before we save
+	 * it into the save area.
+	 */
+	save_vx_regs((__vector128 *)&vcpu->run->s.regs.vrs);
+
+	return kvm_s390_store_adtl_status_unloaded(vcpu, addr);
+}
+
 static void __disable_ibs_on_vcpu(struct kvm_vcpu *vcpu)
 {
 	kvm_check_request(KVM_REQ_ENABLE_IBS, vcpu);
@@ -2107,6 +2327,65 @@ static int kvm_vcpu_ioctl_enable_cap(struct kvm_vcpu *vcpu,
 	return r;
 }
 
+static long kvm_s390_guest_mem_op(struct kvm_vcpu *vcpu,
+				  struct kvm_s390_mem_op *mop)
+{
+	void __user *uaddr = (void __user *)mop->buf;
+	void *tmpbuf = NULL;
+	int r, srcu_idx;
+	const u64 supported_flags = KVM_S390_MEMOP_F_INJECT_EXCEPTION
+				    | KVM_S390_MEMOP_F_CHECK_ONLY;
+
+	if (mop->flags & ~supported_flags)
+		return -EINVAL;
+
+	if (mop->size > MEM_OP_MAX_SIZE)
+		return -E2BIG;
+
+	if (!(mop->flags & KVM_S390_MEMOP_F_CHECK_ONLY)) {
+		tmpbuf = vmalloc(mop->size);
+		if (!tmpbuf)
+			return -ENOMEM;
+	}
+
+	srcu_idx = srcu_read_lock(&vcpu->kvm->srcu);
+
+	switch (mop->op) {
+	case KVM_S390_MEMOP_LOGICAL_READ:
+		if (mop->flags & KVM_S390_MEMOP_F_CHECK_ONLY) {
+			r = check_gva_range(vcpu, mop->gaddr, mop->ar, mop->size, false);
+			break;
+		}
+		r = read_guest(vcpu, mop->gaddr, mop->ar, tmpbuf, mop->size);
+		if (r == 0) {
+			if (copy_to_user(uaddr, tmpbuf, mop->size))
+				r = -EFAULT;
+		}
+		break;
+	case KVM_S390_MEMOP_LOGICAL_WRITE:
+		if (mop->flags & KVM_S390_MEMOP_F_CHECK_ONLY) {
+			r = check_gva_range(vcpu, mop->gaddr, mop->ar, mop->size, true);
+			break;
+		}
+		if (copy_from_user(tmpbuf, uaddr, mop->size)) {
+			r = -EFAULT;
+			break;
+		}
+		r = write_guest(vcpu, mop->gaddr, mop->ar, tmpbuf, mop->size);
+		break;
+	default:
+		r = -EINVAL;
+	}
+
+	srcu_read_unlock(&vcpu->kvm->srcu, srcu_idx);
+
+	if (r > 0 && (mop->flags & KVM_S390_MEMOP_F_INJECT_EXCEPTION) != 0)
+		kvm_s390_inject_prog_irq(vcpu, &vcpu->arch.pgm);
+
+	vfree(tmpbuf);
+	return r;
+}
+
 long kvm_arch_vcpu_ioctl(struct file *filp,
 			 unsigned int ioctl, unsigned long arg)
 {
@@ -2116,6 +2395,15 @@ long kvm_arch_vcpu_ioctl(struct file *filp,
 	long r;
 
 	switch (ioctl) {
+	case KVM_S390_IRQ: {
+		struct kvm_s390_irq s390irq;
+
+		r = -EFAULT;
+		if (copy_from_user(&s390irq, argp, sizeof(s390irq)))
+			break;
+		r = kvm_s390_inject_vcpu(vcpu, &s390irq);
+		break;
+	}
 	case KVM_S390_INTERRUPT: {
 		struct kvm_s390_interrupt s390int;
 		struct kvm_s390_irq s390irq;
@@ -2206,6 +2494,47 @@ long kvm_arch_vcpu_ioctl(struct file *filp,
 		r = kvm_vcpu_ioctl_enable_cap(vcpu, &cap);
 		break;
 	}
+	case KVM_S390_MEM_OP: {
+		struct kvm_s390_mem_op mem_op;
+
+		if (copy_from_user(&mem_op, argp, sizeof(mem_op)) == 0)
+			r = kvm_s390_guest_mem_op(vcpu, &mem_op);
+		else
+			r = -EFAULT;
+		break;
+	}
+	case KVM_S390_SET_IRQ_STATE: {
+		struct kvm_s390_irq_state irq_state;
+
+		r = -EFAULT;
+		if (copy_from_user(&irq_state, argp, sizeof(irq_state)))
+			break;
+		if (irq_state.len > VCPU_IRQS_MAX_BUF ||
+		    irq_state.len == 0 ||
+		    irq_state.len % sizeof(struct kvm_s390_irq) > 0) {
+			r = -EINVAL;
+			break;
+		}
+		r = kvm_s390_set_irq_state(vcpu,
+					   (void __user *) irq_state.buf,
+					   irq_state.len);
+		break;
+	}
+	case KVM_S390_GET_IRQ_STATE: {
+		struct kvm_s390_irq_state irq_state;
+
+		r = -EFAULT;
+		if (copy_from_user(&irq_state, argp, sizeof(irq_state)))
+			break;
+		if (irq_state.len == 0) {
+			r = -EINVAL;
+			break;
+		}
+		r = kvm_s390_get_irq_state(vcpu,
+					   (__u8 __user *)  irq_state.buf,
+					   irq_state.len);
+		break;
+	}
 	default:
 		r = -ENOTTY;
 	}
diff --git a/arch/s390/kvm/kvm-s390.h b/arch/s390/kvm/kvm-s390.h
index 985c211..ca108b9 100644
--- a/arch/s390/kvm/kvm-s390.h
+++ b/arch/s390/kvm/kvm-s390.h
@@ -70,16 +70,22 @@ static inline void kvm_s390_set_prefix(struct kvm_vcpu *vcpu, u32 prefix)
 	kvm_make_request(KVM_REQ_MMU_RELOAD, vcpu);
 }
 
-static inline u64 kvm_s390_get_base_disp_s(struct kvm_vcpu *vcpu)
+typedef u8 __bitwise ar_t;
+
+static inline u64 kvm_s390_get_base_disp_s(struct kvm_vcpu *vcpu, ar_t *ar)
 {
 	u32 base2 = vcpu->arch.sie_block->ipb >> 28;
 	u32 disp2 = ((vcpu->arch.sie_block->ipb & 0x0fff0000) >> 16);
 
+	if (ar)
+		*ar = base2;
+
 	return (base2 ? vcpu->run->s.regs.gprs[base2] : 0) + disp2;
 }
 
 static inline void kvm_s390_get_base_disp_sse(struct kvm_vcpu *vcpu,
-					      u64 *address1, u64 *address2)
+					      u64 *address1, u64 *address2,
+					      ar_t *ar_b1, ar_t *ar_b2)
 {
 	u32 base1 = (vcpu->arch.sie_block->ipb & 0xf0000000) >> 28;
 	u32 disp1 = (vcpu->arch.sie_block->ipb & 0x0fff0000) >> 16;
@@ -88,6 +94,11 @@ static inline void kvm_s390_get_base_disp_sse(struct kvm_vcpu *vcpu,
 
 	*address1 = (base1 ? vcpu->run->s.regs.gprs[base1] : 0) + disp1;
 	*address2 = (base2 ? vcpu->run->s.regs.gprs[base2] : 0) + disp2;
+
+	if (ar_b1)
+		*ar_b1 = base1;
+	if (ar_b2)
+		*ar_b2 = base2;
 }
 
 static inline void kvm_s390_get_regs_rre(struct kvm_vcpu *vcpu, int *r1, int *r2)
@@ -98,7 +109,7 @@ static inline void kvm_s390_get_regs_rre(struct kvm_vcpu *vcpu, int *r1, int *r2
 		*r2 = (vcpu->arch.sie_block->ipb & 0x000f0000) >> 16;
 }
 
-static inline u64 kvm_s390_get_base_disp_rsy(struct kvm_vcpu *vcpu)
+static inline u64 kvm_s390_get_base_disp_rsy(struct kvm_vcpu *vcpu, ar_t *ar)
 {
 	u32 base2 = vcpu->arch.sie_block->ipb >> 28;
 	u32 disp2 = ((vcpu->arch.sie_block->ipb & 0x0fff0000) >> 16) +
@@ -107,14 +118,20 @@ static inline u64 kvm_s390_get_base_disp_rsy(struct kvm_vcpu *vcpu)
 	if (disp2 & 0x80000)
 		disp2+=0xfff00000;
 
+	if (ar)
+		*ar = base2;
+
 	return (base2 ? vcpu->run->s.regs.gprs[base2] : 0) + (long)(int)disp2;
 }
 
-static inline u64 kvm_s390_get_base_disp_rs(struct kvm_vcpu *vcpu)
+static inline u64 kvm_s390_get_base_disp_rs(struct kvm_vcpu *vcpu, ar_t *ar)
 {
 	u32 base2 = vcpu->arch.sie_block->ipb >> 28;
 	u32 disp2 = ((vcpu->arch.sie_block->ipb & 0x0fff0000) >> 16);
 
+	if (ar)
+		*ar = base2;
+
 	return (base2 ? vcpu->run->s.regs.gprs[base2] : 0) + disp2;
 }
 
@@ -125,10 +142,22 @@ static inline void kvm_s390_set_psw_cc(struct kvm_vcpu *vcpu, unsigned long cc)
 	vcpu->arch.sie_block->gpsw.mask |= cc << 44;
 }
 
-/* test availability of facility in a kvm intance */
+/* test availability of facility in a kvm instance */
 static inline int test_kvm_facility(struct kvm *kvm, unsigned long nr)
 {
-	return __test_facility(nr, kvm->arch.model.fac->kvm);
+	return __test_facility(nr, kvm->arch.model.fac->mask) &&
+		__test_facility(nr, kvm->arch.model.fac->list);
+}
+
+static inline int set_kvm_facility(u64 *fac_list, unsigned long nr)
+{
+	unsigned char *ptr;
+
+	if (nr >= MAX_FACILITY_BIT)
+		return -EINVAL;
+	ptr = (unsigned char *) fac_list + (nr >> 3);
+	*ptr |= (0x80UL >> (nr & 7));
+	return 0;
 }
 
 /* are cpu states controlled by user space */
@@ -149,9 +178,9 @@ int __must_check kvm_s390_inject_vcpu(struct kvm_vcpu *vcpu,
 				      struct kvm_s390_irq *irq);
 int __must_check kvm_s390_inject_program_int(struct kvm_vcpu *vcpu, u16 code);
 struct kvm_s390_interrupt_info *kvm_s390_get_io_int(struct kvm *kvm,
-						    u64 cr6, u64 schid);
-void kvm_s390_reinject_io_int(struct kvm *kvm,
-			      struct kvm_s390_interrupt_info *inti);
+						    u64 isc_mask, u32 schid);
+int kvm_s390_reinject_io_int(struct kvm *kvm,
+			     struct kvm_s390_interrupt_info *inti);
 int kvm_s390_mask_adapter(struct kvm *kvm, unsigned int id, bool masked);
 
 /* implemented in intercept.c */
@@ -176,7 +205,10 @@ int kvm_s390_handle_sigp_pei(struct kvm_vcpu *vcpu);
 /* implemented in kvm-s390.c */
 long kvm_arch_fault_in_page(struct kvm_vcpu *vcpu, gpa_t gpa, int writable);
 int kvm_s390_store_status_unloaded(struct kvm_vcpu *vcpu, unsigned long addr);
+int kvm_s390_store_adtl_status_unloaded(struct kvm_vcpu *vcpu,
+					unsigned long addr);
 int kvm_s390_vcpu_store_status(struct kvm_vcpu *vcpu, unsigned long addr);
+int kvm_s390_vcpu_store_adtl_status(struct kvm_vcpu *vcpu, unsigned long addr);
 void kvm_s390_vcpu_start(struct kvm_vcpu *vcpu);
 void kvm_s390_vcpu_stop(struct kvm_vcpu *vcpu);
 void s390_vcpu_block(struct kvm_vcpu *vcpu);
@@ -240,6 +272,10 @@ int kvm_s390_ext_call_pending(struct kvm_vcpu *vcpu);
 extern struct kvm_device_ops kvm_flic_ops;
 int kvm_s390_is_stop_irq_pending(struct kvm_vcpu *vcpu);
 void kvm_s390_clear_stop_irq(struct kvm_vcpu *vcpu);
+int kvm_s390_set_irq_state(struct kvm_vcpu *vcpu,
+			   void __user *buf, int len);
+int kvm_s390_get_irq_state(struct kvm_vcpu *vcpu,
+			   __u8 __user *buf, int len);
 
 /* implemented in guestdbg.c */
 void kvm_s390_backup_guest_per_regs(struct kvm_vcpu *vcpu);
diff --git a/arch/s390/kvm/priv.c b/arch/s390/kvm/priv.c
index bdd9b5b..d22d8ee 100644
--- a/arch/s390/kvm/priv.c
+++ b/arch/s390/kvm/priv.c
@@ -36,15 +36,16 @@ static int handle_set_clock(struct kvm_vcpu *vcpu)
 	struct kvm_vcpu *cpup;
 	s64 hostclk, val;
 	int i, rc;
+	ar_t ar;
 	u64 op2;
 
 	if (vcpu->arch.sie_block->gpsw.mask & PSW_MASK_PSTATE)
 		return kvm_s390_inject_program_int(vcpu, PGM_PRIVILEGED_OP);
 
-	op2 = kvm_s390_get_base_disp_s(vcpu);
+	op2 = kvm_s390_get_base_disp_s(vcpu, &ar);
 	if (op2 & 7)	/* Operand must be on a doubleword boundary */
 		return kvm_s390_inject_program_int(vcpu, PGM_SPECIFICATION);
-	rc = read_guest(vcpu, op2, &val, sizeof(val));
+	rc = read_guest(vcpu, op2, ar, &val, sizeof(val));
 	if (rc)
 		return kvm_s390_inject_prog_cond(vcpu, rc);
 
@@ -68,20 +69,21 @@ static int handle_set_prefix(struct kvm_vcpu *vcpu)
 	u64 operand2;
 	u32 address;
 	int rc;
+	ar_t ar;
 
 	vcpu->stat.instruction_spx++;
 
 	if (vcpu->arch.sie_block->gpsw.mask & PSW_MASK_PSTATE)
 		return kvm_s390_inject_program_int(vcpu, PGM_PRIVILEGED_OP);
 
-	operand2 = kvm_s390_get_base_disp_s(vcpu);
+	operand2 = kvm_s390_get_base_disp_s(vcpu, &ar);
 
 	/* must be word boundary */
 	if (operand2 & 3)
 		return kvm_s390_inject_program_int(vcpu, PGM_SPECIFICATION);
 
 	/* get the value */
-	rc = read_guest(vcpu, operand2, &address, sizeof(address));
+	rc = read_guest(vcpu, operand2, ar, &address, sizeof(address));
 	if (rc)
 		return kvm_s390_inject_prog_cond(vcpu, rc);
 
@@ -107,13 +109,14 @@ static int handle_store_prefix(struct kvm_vcpu *vcpu)
 	u64 operand2;
 	u32 address;
 	int rc;
+	ar_t ar;
 
 	vcpu->stat.instruction_stpx++;
 
 	if (vcpu->arch.sie_block->gpsw.mask & PSW_MASK_PSTATE)
 		return kvm_s390_inject_program_int(vcpu, PGM_PRIVILEGED_OP);
 
-	operand2 = kvm_s390_get_base_disp_s(vcpu);
+	operand2 = kvm_s390_get_base_disp_s(vcpu, &ar);
 
 	/* must be word boundary */
 	if (operand2 & 3)
@@ -122,7 +125,7 @@ static int handle_store_prefix(struct kvm_vcpu *vcpu)
 	address = kvm_s390_get_prefix(vcpu);
 
 	/* get the value */
-	rc = write_guest(vcpu, operand2, &address, sizeof(address));
+	rc = write_guest(vcpu, operand2, ar, &address, sizeof(address));
 	if (rc)
 		return kvm_s390_inject_prog_cond(vcpu, rc);
 
@@ -136,18 +139,19 @@ static int handle_store_cpu_address(struct kvm_vcpu *vcpu)
 	u16 vcpu_id = vcpu->vcpu_id;
 	u64 ga;
 	int rc;
+	ar_t ar;
 
 	vcpu->stat.instruction_stap++;
 
 	if (vcpu->arch.sie_block->gpsw.mask & PSW_MASK_PSTATE)
 		return kvm_s390_inject_program_int(vcpu, PGM_PRIVILEGED_OP);
 
-	ga = kvm_s390_get_base_disp_s(vcpu);
+	ga = kvm_s390_get_base_disp_s(vcpu, &ar);
 
 	if (ga & 1)
 		return kvm_s390_inject_program_int(vcpu, PGM_SPECIFICATION);
 
-	rc = write_guest(vcpu, ga, &vcpu_id, sizeof(vcpu_id));
+	rc = write_guest(vcpu, ga, ar, &vcpu_id, sizeof(vcpu_id));
 	if (rc)
 		return kvm_s390_inject_prog_cond(vcpu, rc);
 
@@ -207,7 +211,7 @@ static int handle_test_block(struct kvm_vcpu *vcpu)
 	kvm_s390_get_regs_rre(vcpu, NULL, &reg2);
 	addr = vcpu->run->s.regs.gprs[reg2] & PAGE_MASK;
 	addr = kvm_s390_logical_to_effective(vcpu, addr);
-	if (kvm_s390_check_low_addr_protection(vcpu, addr))
+	if (kvm_s390_check_low_addr_prot_real(vcpu, addr))
 		return kvm_s390_inject_prog_irq(vcpu, &vcpu->arch.pgm);
 	addr = kvm_s390_real_to_abs(vcpu, addr);
 
@@ -229,18 +233,20 @@ static int handle_tpi(struct kvm_vcpu *vcpu)
 	struct kvm_s390_interrupt_info *inti;
 	unsigned long len;
 	u32 tpi_data[3];
-	int cc, rc;
+	int rc;
 	u64 addr;
+	ar_t ar;
 
-	rc = 0;
-	addr = kvm_s390_get_base_disp_s(vcpu);
+	addr = kvm_s390_get_base_disp_s(vcpu, &ar);
 	if (addr & 3)
 		return kvm_s390_inject_program_int(vcpu, PGM_SPECIFICATION);
-	cc = 0;
+
 	inti = kvm_s390_get_io_int(vcpu->kvm, vcpu->arch.sie_block->gcr[6], 0);
-	if (!inti)
-		goto no_interrupt;
-	cc = 1;
+	if (!inti) {
+		kvm_s390_set_psw_cc(vcpu, 0);
+		return 0;
+	}
+
 	tpi_data[0] = inti->io.subchannel_id << 16 | inti->io.subchannel_nr;
 	tpi_data[1] = inti->io.io_int_parm;
 	tpi_data[2] = inti->io.io_int_word;
@@ -250,40 +256,51 @@ static int handle_tpi(struct kvm_vcpu *vcpu)
 		 * provided area.
 		 */
 		len = sizeof(tpi_data) - 4;
-		rc = write_guest(vcpu, addr, &tpi_data, len);
-		if (rc)
-			return kvm_s390_inject_prog_cond(vcpu, rc);
+		rc = write_guest(vcpu, addr, ar, &tpi_data, len);
+		if (rc) {
+			rc = kvm_s390_inject_prog_cond(vcpu, rc);
+			goto reinject_interrupt;
+		}
 	} else {
 		/*
 		 * Store the three-word I/O interruption code into
 		 * the appropriate lowcore area.
 		 */
 		len = sizeof(tpi_data);
-		if (write_guest_lc(vcpu, __LC_SUBCHANNEL_ID, &tpi_data, len))
+		if (write_guest_lc(vcpu, __LC_SUBCHANNEL_ID, &tpi_data, len)) {
+			/* failed writes to the low core are not recoverable */
 			rc = -EFAULT;
+			goto reinject_interrupt;
+		}
 	}
+
+	/* irq was successfully handed to the guest */
+	kfree(inti);
+	kvm_s390_set_psw_cc(vcpu, 1);
+	return 0;
+reinject_interrupt:
 	/*
 	 * If we encounter a problem storing the interruption code, the
 	 * instruction is suppressed from the guest's view: reinject the
 	 * interrupt.
 	 */
-	if (!rc)
+	if (kvm_s390_reinject_io_int(vcpu->kvm, inti)) {
 		kfree(inti);
-	else
-		kvm_s390_reinject_io_int(vcpu->kvm, inti);
-no_interrupt:
-	/* Set condition code and we're done. */
-	if (!rc)
-		kvm_s390_set_psw_cc(vcpu, cc);
+		rc = -EFAULT;
+	}
+	/* don't set the cc, a pgm irq was injected or we drop to user space */
 	return rc ? -EFAULT : 0;
 }
 
 static int handle_tsch(struct kvm_vcpu *vcpu)
 {
-	struct kvm_s390_interrupt_info *inti;
+	struct kvm_s390_interrupt_info *inti = NULL;
+	const u64 isc_mask = 0xffUL << 24; /* all iscs set */
 
-	inti = kvm_s390_get_io_int(vcpu->kvm, 0,
-				   vcpu->run->s.regs.gprs[1]);
+	/* a valid schid has at least one bit set */
+	if (vcpu->run->s.regs.gprs[1])
+		inti = kvm_s390_get_io_int(vcpu->kvm, isc_mask,
+					   vcpu->run->s.regs.gprs[1]);
 
 	/*
 	 * Prepare exit to userspace.
@@ -348,7 +365,7 @@ static int handle_stfl(struct kvm_vcpu *vcpu)
 	 * We need to shift the lower 32 facility bits (bit 0-31) from a u64
 	 * into a u32 memory representation. They will remain bits 0-31.
 	 */
-	fac = *vcpu->kvm->arch.model.fac->sie >> 32;
+	fac = *vcpu->kvm->arch.model.fac->list >> 32;
 	rc = write_guest_lc(vcpu, offsetof(struct _lowcore, stfl_fac_list),
 			    &fac, sizeof(fac));
 	if (rc)
@@ -386,15 +403,16 @@ int kvm_s390_handle_lpsw(struct kvm_vcpu *vcpu)
 	psw_compat_t new_psw;
 	u64 addr;
 	int rc;
+	ar_t ar;
 
 	if (gpsw->mask & PSW_MASK_PSTATE)
 		return kvm_s390_inject_program_int(vcpu, PGM_PRIVILEGED_OP);
 
-	addr = kvm_s390_get_base_disp_s(vcpu);
+	addr = kvm_s390_get_base_disp_s(vcpu, &ar);
 	if (addr & 7)
 		return kvm_s390_inject_program_int(vcpu, PGM_SPECIFICATION);
 
-	rc = read_guest(vcpu, addr, &new_psw, sizeof(new_psw));
+	rc = read_guest(vcpu, addr, ar, &new_psw, sizeof(new_psw));
 	if (rc)
 		return kvm_s390_inject_prog_cond(vcpu, rc);
 	if (!(new_psw.mask & PSW32_MASK_BASE))
@@ -412,14 +430,15 @@ static int handle_lpswe(struct kvm_vcpu *vcpu)
 	psw_t new_psw;
 	u64 addr;
 	int rc;
+	ar_t ar;
 
 	if (vcpu->arch.sie_block->gpsw.mask & PSW_MASK_PSTATE)
 		return kvm_s390_inject_program_int(vcpu, PGM_PRIVILEGED_OP);
 
-	addr = kvm_s390_get_base_disp_s(vcpu);
+	addr = kvm_s390_get_base_disp_s(vcpu, &ar);
 	if (addr & 7)
 		return kvm_s390_inject_program_int(vcpu, PGM_SPECIFICATION);
-	rc = read_guest(vcpu, addr, &new_psw, sizeof(new_psw));
+	rc = read_guest(vcpu, addr, ar, &new_psw, sizeof(new_psw));
 	if (rc)
 		return kvm_s390_inject_prog_cond(vcpu, rc);
 	vcpu->arch.sie_block->gpsw = new_psw;
@@ -433,18 +452,19 @@ static int handle_stidp(struct kvm_vcpu *vcpu)
 	u64 stidp_data = vcpu->arch.stidp_data;
 	u64 operand2;
 	int rc;
+	ar_t ar;
 
 	vcpu->stat.instruction_stidp++;
 
 	if (vcpu->arch.sie_block->gpsw.mask & PSW_MASK_PSTATE)
 		return kvm_s390_inject_program_int(vcpu, PGM_PRIVILEGED_OP);
 
-	operand2 = kvm_s390_get_base_disp_s(vcpu);
+	operand2 = kvm_s390_get_base_disp_s(vcpu, &ar);
 
 	if (operand2 & 7)
 		return kvm_s390_inject_program_int(vcpu, PGM_SPECIFICATION);
 
-	rc = write_guest(vcpu, operand2, &stidp_data, sizeof(stidp_data));
+	rc = write_guest(vcpu, operand2, ar, &stidp_data, sizeof(stidp_data));
 	if (rc)
 		return kvm_s390_inject_prog_cond(vcpu, rc);
 
@@ -467,6 +487,7 @@ static void handle_stsi_3_2_2(struct kvm_vcpu *vcpu, struct sysinfo_3_2_2 *mem)
 	for (n = mem->count - 1; n > 0 ; n--)
 		memcpy(&mem->vm[n], &mem->vm[n - 1], sizeof(mem->vm[0]));
 
+	memset(&mem->vm[0], 0, sizeof(mem->vm[0]));
 	mem->vm[0].cpus_total = cpus;
 	mem->vm[0].cpus_configured = cpus;
 	mem->vm[0].cpus_standby = 0;
@@ -478,6 +499,17 @@ static void handle_stsi_3_2_2(struct kvm_vcpu *vcpu, struct sysinfo_3_2_2 *mem)
 	ASCEBC(mem->vm[0].cpi, 16);
 }
 
+static void insert_stsi_usr_data(struct kvm_vcpu *vcpu, u64 addr, ar_t ar,
+				 u8 fc, u8 sel1, u16 sel2)
+{
+	vcpu->run->exit_reason = KVM_EXIT_S390_STSI;
+	vcpu->run->s390_stsi.addr = addr;
+	vcpu->run->s390_stsi.ar = ar;
+	vcpu->run->s390_stsi.fc = fc;
+	vcpu->run->s390_stsi.sel1 = sel1;
+	vcpu->run->s390_stsi.sel2 = sel2;
+}
+
 static int handle_stsi(struct kvm_vcpu *vcpu)
 {
 	int fc = (vcpu->run->s.regs.gprs[0] & 0xf0000000) >> 28;
@@ -486,6 +518,7 @@ static int handle_stsi(struct kvm_vcpu *vcpu)
 	unsigned long mem = 0;
 	u64 operand2;
 	int rc = 0;
+	ar_t ar;
 
 	vcpu->stat.instruction_stsi++;
 	VCPU_EVENT(vcpu, 4, "stsi: fc: %x sel1: %x sel2: %x", fc, sel1, sel2);
@@ -508,7 +541,7 @@ static int handle_stsi(struct kvm_vcpu *vcpu)
 		return 0;
 	}
 
-	operand2 = kvm_s390_get_base_disp_s(vcpu);
+	operand2 = kvm_s390_get_base_disp_s(vcpu, &ar);
 
 	if (operand2 & 0xfff)
 		return kvm_s390_inject_program_int(vcpu, PGM_SPECIFICATION);
@@ -532,16 +565,20 @@ static int handle_stsi(struct kvm_vcpu *vcpu)
 		break;
 	}
 
-	rc = write_guest(vcpu, operand2, (void *)mem, PAGE_SIZE);
+	rc = write_guest(vcpu, operand2, ar, (void *)mem, PAGE_SIZE);
 	if (rc) {
 		rc = kvm_s390_inject_prog_cond(vcpu, rc);
 		goto out;
 	}
+	if (vcpu->kvm->arch.user_stsi) {
+		insert_stsi_usr_data(vcpu, operand2, ar, fc, sel1, sel2);
+		rc = -EREMOTE;
+	}
 	trace_kvm_s390_handle_stsi(vcpu, fc, sel1, sel2, operand2);
 	free_page(mem);
 	kvm_s390_set_psw_cc(vcpu, 0);
 	vcpu->run->s.regs.gprs[0] = 0;
-	return 0;
+	return rc;
 out_no_data:
 	kvm_s390_set_psw_cc(vcpu, 3);
 out:
@@ -670,7 +707,7 @@ static int handle_pfmf(struct kvm_vcpu *vcpu)
 	}
 
 	if (vcpu->run->s.regs.gprs[reg1] & PFMF_CF) {
-		if (kvm_s390_check_low_addr_protection(vcpu, start))
+		if (kvm_s390_check_low_addr_prot_real(vcpu, start))
 			return kvm_s390_inject_prog_irq(vcpu, &vcpu->arch.pgm);
 	}
 
@@ -776,13 +813,14 @@ int kvm_s390_handle_lctl(struct kvm_vcpu *vcpu)
 	int reg, rc, nr_regs;
 	u32 ctl_array[16];
 	u64 ga;
+	ar_t ar;
 
 	vcpu->stat.instruction_lctl++;
 
 	if (vcpu->arch.sie_block->gpsw.mask & PSW_MASK_PSTATE)
 		return kvm_s390_inject_program_int(vcpu, PGM_PRIVILEGED_OP);
 
-	ga = kvm_s390_get_base_disp_rs(vcpu);
+	ga = kvm_s390_get_base_disp_rs(vcpu, &ar);
 
 	if (ga & 3)
 		return kvm_s390_inject_program_int(vcpu, PGM_SPECIFICATION);
@@ -791,7 +829,7 @@ int kvm_s390_handle_lctl(struct kvm_vcpu *vcpu)
 	trace_kvm_s390_handle_lctl(vcpu, 0, reg1, reg3, ga);
 
 	nr_regs = ((reg3 - reg1) & 0xf) + 1;
-	rc = read_guest(vcpu, ga, ctl_array, nr_regs * sizeof(u32));
+	rc = read_guest(vcpu, ga, ar, ctl_array, nr_regs * sizeof(u32));
 	if (rc)
 		return kvm_s390_inject_prog_cond(vcpu, rc);
 	reg = reg1;
@@ -814,13 +852,14 @@ int kvm_s390_handle_stctl(struct kvm_vcpu *vcpu)
 	int reg, rc, nr_regs;
 	u32 ctl_array[16];
 	u64 ga;
+	ar_t ar;
 
 	vcpu->stat.instruction_stctl++;
 
 	if (vcpu->arch.sie_block->gpsw.mask & PSW_MASK_PSTATE)
 		return kvm_s390_inject_program_int(vcpu, PGM_PRIVILEGED_OP);
 
-	ga = kvm_s390_get_base_disp_rs(vcpu);
+	ga = kvm_s390_get_base_disp_rs(vcpu, &ar);
 
 	if (ga & 3)
 		return kvm_s390_inject_program_int(vcpu, PGM_SPECIFICATION);
@@ -836,7 +875,7 @@ int kvm_s390_handle_stctl(struct kvm_vcpu *vcpu)
 			break;
 		reg = (reg + 1) % 16;
 	} while (1);
-	rc = write_guest(vcpu, ga, ctl_array, nr_regs * sizeof(u32));
+	rc = write_guest(vcpu, ga, ar, ctl_array, nr_regs * sizeof(u32));
 	return rc ? kvm_s390_inject_prog_cond(vcpu, rc) : 0;
 }
 
@@ -847,13 +886,14 @@ static int handle_lctlg(struct kvm_vcpu *vcpu)
 	int reg, rc, nr_regs;
 	u64 ctl_array[16];
 	u64 ga;
+	ar_t ar;
 
 	vcpu->stat.instruction_lctlg++;
 
 	if (vcpu->arch.sie_block->gpsw.mask & PSW_MASK_PSTATE)
 		return kvm_s390_inject_program_int(vcpu, PGM_PRIVILEGED_OP);
 
-	ga = kvm_s390_get_base_disp_rsy(vcpu);
+	ga = kvm_s390_get_base_disp_rsy(vcpu, &ar);
 
 	if (ga & 7)
 		return kvm_s390_inject_program_int(vcpu, PGM_SPECIFICATION);
@@ -862,7 +902,7 @@ static int handle_lctlg(struct kvm_vcpu *vcpu)
 	trace_kvm_s390_handle_lctl(vcpu, 1, reg1, reg3, ga);
 
 	nr_regs = ((reg3 - reg1) & 0xf) + 1;
-	rc = read_guest(vcpu, ga, ctl_array, nr_regs * sizeof(u64));
+	rc = read_guest(vcpu, ga, ar, ctl_array, nr_regs * sizeof(u64));
 	if (rc)
 		return kvm_s390_inject_prog_cond(vcpu, rc);
 	reg = reg1;
@@ -884,13 +924,14 @@ static int handle_stctg(struct kvm_vcpu *vcpu)
 	int reg, rc, nr_regs;
 	u64 ctl_array[16];
 	u64 ga;
+	ar_t ar;
 
 	vcpu->stat.instruction_stctg++;
 
 	if (vcpu->arch.sie_block->gpsw.mask & PSW_MASK_PSTATE)
 		return kvm_s390_inject_program_int(vcpu, PGM_PRIVILEGED_OP);
 
-	ga = kvm_s390_get_base_disp_rsy(vcpu);
+	ga = kvm_s390_get_base_disp_rsy(vcpu, &ar);
 
 	if (ga & 7)
 		return kvm_s390_inject_program_int(vcpu, PGM_SPECIFICATION);
@@ -906,7 +947,7 @@ static int handle_stctg(struct kvm_vcpu *vcpu)
 			break;
 		reg = (reg + 1) % 16;
 	} while (1);
-	rc = write_guest(vcpu, ga, ctl_array, nr_regs * sizeof(u64));
+	rc = write_guest(vcpu, ga, ar, ctl_array, nr_regs * sizeof(u64));
 	return rc ? kvm_s390_inject_prog_cond(vcpu, rc) : 0;
 }
 
@@ -931,13 +972,14 @@ static int handle_tprot(struct kvm_vcpu *vcpu)
 	unsigned long hva, gpa;
 	int ret = 0, cc = 0;
 	bool writable;
+	ar_t ar;
 
 	vcpu->stat.instruction_tprot++;
 
 	if (vcpu->arch.sie_block->gpsw.mask & PSW_MASK_PSTATE)
 		return kvm_s390_inject_program_int(vcpu, PGM_PRIVILEGED_OP);
 
-	kvm_s390_get_base_disp_sse(vcpu, &address1, &address2);
+	kvm_s390_get_base_disp_sse(vcpu, &address1, &address2, &ar, NULL);
 
 	/* we only handle the Linux memory detection case:
 	 * access key == 0
@@ -946,11 +988,11 @@ static int handle_tprot(struct kvm_vcpu *vcpu)
 		return -EOPNOTSUPP;
 	if (vcpu->arch.sie_block->gpsw.mask & PSW_MASK_DAT)
 		ipte_lock(vcpu);
-	ret = guest_translate_address(vcpu, address1, &gpa, 1);
+	ret = guest_translate_address(vcpu, address1, ar, &gpa, 1);
 	if (ret == PGM_PROTECTION) {
 		/* Write protected? Try again with read-only... */
 		cc = 1;
-		ret = guest_translate_address(vcpu, address1, &gpa, 0);
+		ret = guest_translate_address(vcpu, address1, ar, &gpa, 0);
 	}
 	if (ret) {
 		if (ret == PGM_ADDRESSING || ret == PGM_TRANSLATION_SPEC) {
diff --git a/arch/s390/kvm/sigp.c b/arch/s390/kvm/sigp.c
index 23b1e86..72e58bd 100644
--- a/arch/s390/kvm/sigp.c
+++ b/arch/s390/kvm/sigp.c
@@ -393,6 +393,9 @@ static int handle_sigp_order_in_user_space(struct kvm_vcpu *vcpu, u8 order_code)
 	case SIGP_STORE_STATUS_AT_ADDRESS:
 		vcpu->stat.instruction_sigp_store_status++;
 		break;
+	case SIGP_STORE_ADDITIONAL_STATUS:
+		vcpu->stat.instruction_sigp_store_adtl_status++;
+		break;
 	case SIGP_SET_PREFIX:
 		vcpu->stat.instruction_sigp_prefix++;
 		break;
@@ -431,7 +434,7 @@ int kvm_s390_handle_sigp(struct kvm_vcpu *vcpu)
 	if (vcpu->arch.sie_block->gpsw.mask & PSW_MASK_PSTATE)
 		return kvm_s390_inject_program_int(vcpu, PGM_PRIVILEGED_OP);
 
-	order_code = kvm_s390_get_base_disp_rs(vcpu);
+	order_code = kvm_s390_get_base_disp_rs(vcpu, NULL);
 	if (handle_sigp_order_in_user_space(vcpu, order_code))
 		return -EOPNOTSUPP;
 
@@ -473,7 +476,7 @@ int kvm_s390_handle_sigp_pei(struct kvm_vcpu *vcpu)
 	int r3 = vcpu->arch.sie_block->ipa & 0x000f;
 	u16 cpu_addr = vcpu->run->s.regs.gprs[r3];
 	struct kvm_vcpu *dest_vcpu;
-	u8 order_code = kvm_s390_get_base_disp_rs(vcpu);
+	u8 order_code = kvm_s390_get_base_disp_rs(vcpu, NULL);
 
 	trace_kvm_s390_handle_sigp_pei(vcpu, order_code, cpu_addr);
 
diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c
index 753a567..b2c76f6 100644
--- a/arch/s390/pci/pci.c
+++ b/arch/s390/pci/pci.c
@@ -287,7 +287,7 @@ void __iomem *pci_iomap_range(struct pci_dev *pdev,
 	addr = ZPCI_IOMAP_ADDR_BASE | ((u64) idx << 48);
 	return (void __iomem *) addr + offset;
 }
-EXPORT_SYMBOL_GPL(pci_iomap_range);
+EXPORT_SYMBOL(pci_iomap_range);
 
 void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen)
 {
@@ -309,7 +309,7 @@ void pci_iounmap(struct pci_dev *pdev, void __iomem *addr)
 	}
 	spin_unlock(&zpci_iomap_lock);
 }
-EXPORT_SYMBOL_GPL(pci_iounmap);
+EXPORT_SYMBOL(pci_iounmap);
 
 static int pci_read(struct pci_bus *bus, unsigned int devfn, int where,
 		    int size, u32 *val)
@@ -483,9 +483,8 @@ void arch_teardown_msi_irqs(struct pci_dev *pdev)
 	airq_iv_free_bit(zpci_aisb_iv, zdev->aisb);
 }
 
-static void zpci_map_resources(struct zpci_dev *zdev)
+static void zpci_map_resources(struct pci_dev *pdev)
 {
-	struct pci_dev *pdev = zdev->pdev;
 	resource_size_t len;
 	int i;
 
@@ -499,9 +498,8 @@ static void zpci_map_resources(struct zpci_dev *zdev)
 	}
 }
 
-static void zpci_unmap_resources(struct zpci_dev *zdev)
+static void zpci_unmap_resources(struct pci_dev *pdev)
 {
-	struct pci_dev *pdev = zdev->pdev;
 	resource_size_t len;
 	int i;
 
@@ -651,7 +649,7 @@ int pcibios_add_device(struct pci_dev *pdev)
 
 	zdev->pdev = pdev;
 	pdev->dev.groups = zpci_attr_groups;
-	zpci_map_resources(zdev);
+	zpci_map_resources(pdev);
 
 	for (i = 0; i < PCI_BAR_COUNT; i++) {
 		res = &pdev->resource[i];
@@ -663,6 +661,11 @@ int pcibios_add_device(struct pci_dev *pdev)
 	return 0;
 }
 
+void pcibios_release_device(struct pci_dev *pdev)
+{
+	zpci_unmap_resources(pdev);
+}
+
 int pcibios_enable_device(struct pci_dev *pdev, int mask)
 {
 	struct zpci_dev *zdev = get_zdev(pdev);
@@ -670,7 +673,6 @@ int pcibios_enable_device(struct pci_dev *pdev, int mask)
 	zdev->pdev = pdev;
 	zpci_debug_init_device(zdev);
 	zpci_fmb_enable_device(zdev);
-	zpci_map_resources(zdev);
 
 	return pci_enable_resources(pdev, mask);
 }
@@ -679,7 +681,6 @@ void pcibios_disable_device(struct pci_dev *pdev)
 {
 	struct zpci_dev *zdev = get_zdev(pdev);
 
-	zpci_unmap_resources(zdev);
 	zpci_fmb_disable_device(zdev);
 	zpci_debug_exit_device(zdev);
 	zdev->pdev = NULL;
@@ -688,7 +689,8 @@ void pcibios_disable_device(struct pci_dev *pdev)
 #ifdef CONFIG_HIBERNATE_CALLBACKS
 static int zpci_restore(struct device *dev)
 {
-	struct zpci_dev *zdev = get_zdev(to_pci_dev(dev));
+	struct pci_dev *pdev = to_pci_dev(dev);
+	struct zpci_dev *zdev = get_zdev(pdev);
 	int ret = 0;
 
 	if (zdev->state != ZPCI_FN_STATE_ONLINE)
@@ -698,7 +700,7 @@ static int zpci_restore(struct device *dev)
 	if (ret)
 		goto out;
 
-	zpci_map_resources(zdev);
+	zpci_map_resources(pdev);
 	zpci_register_ioat(zdev, 0, zdev->start_dma + PAGE_OFFSET,
 			   zdev->start_dma + zdev->iommu_size - 1,
 			   (u64) zdev->dma_table);
@@ -709,12 +711,14 @@ out:
 
 static int zpci_freeze(struct device *dev)
 {
-	struct zpci_dev *zdev = get_zdev(to_pci_dev(dev));
+	struct pci_dev *pdev = to_pci_dev(dev);
+	struct zpci_dev *zdev = get_zdev(pdev);
 
 	if (zdev->state != ZPCI_FN_STATE_ONLINE)
 		return 0;
 
 	zpci_unregister_ioat(zdev, 0);
+	zpci_unmap_resources(pdev);
 	return clp_disable_fh(zdev);
 }
 
@@ -776,8 +780,8 @@ static int zpci_scan_bus(struct zpci_dev *zdev)
 		zpci_cleanup_bus_resources(zdev);
 		return -EIO;
 	}
-
 	zdev->bus->max_bus_speed = zdev->max_bus_speed;
+	pci_bus_add_devices(zdev->bus);
 	return 0;
 }
 
diff --git a/arch/s390/pci/pci_mmio.c b/arch/s390/pci/pci_mmio.c
index 8aa271b..b1bb2b7 100644
--- a/arch/s390/pci/pci_mmio.c
+++ b/arch/s390/pci/pci_mmio.c
@@ -64,8 +64,7 @@ SYSCALL_DEFINE3(s390_pci_mmio_write, unsigned long, mmio_addr,
 	if (copy_from_user(buf, user_buffer, length))
 		goto out;
 
-	memcpy_toio(io_addr, buf, length);
-	ret = 0;
+	ret = zpci_memcpy_toio(io_addr, buf, length);
 out:
 	if (buf != local_buf)
 		kfree(buf);
@@ -98,16 +97,16 @@ SYSCALL_DEFINE3(s390_pci_mmio_read, unsigned long, mmio_addr,
 		goto out;
 	io_addr = (void __iomem *)((pfn << PAGE_SHIFT) | (mmio_addr & ~PAGE_MASK));
 
-	ret = -EFAULT;
-	if ((unsigned long) io_addr < ZPCI_IOMAP_ADDR_BASE)
+	if ((unsigned long) io_addr < ZPCI_IOMAP_ADDR_BASE) {
+		ret = -EFAULT;
 		goto out;
-
-	memcpy_fromio(buf, io_addr, length);
-
-	if (copy_to_user(user_buffer, buf, length))
+	}
+	ret = zpci_memcpy_fromio(buf, io_addr, length);
+	if (ret)
 		goto out;
+	if (copy_to_user(user_buffer, buf, length))
+		ret = -EFAULT;
 
-	ret = 0;
 out:
 	if (buf != local_buf)
 		kfree(buf);
diff --git a/arch/sh/drivers/pci/pci.c b/arch/sh/drivers/pci/pci.c
index 1bc09ee..d5462b7 100644
--- a/arch/sh/drivers/pci/pci.c
+++ b/arch/sh/drivers/pci/pci.c
@@ -58,20 +58,23 @@ static void pcibios_scanbus(struct pci_channel *hose)
 
 	need_domain_info = need_domain_info || hose->index;
 	hose->need_domain_info = need_domain_info;
-	if (bus) {
-		next_busno = bus->busn_res.end + 1;
-		/* Don't allow 8-bit bus number overflow inside the hose -
-		   reserve some space for bridges. */
-		if (next_busno > 224) {
-			next_busno = 0;
-			need_domain_info = 1;
-		}
 
-		pci_bus_size_bridges(bus);
-		pci_bus_assign_resources(bus);
-	} else {
+	if (!bus) {
 		pci_free_resource_list(&resources);
+		return;
+	}
+
+	next_busno = bus->busn_res.end + 1;
+	/* Don't allow 8-bit bus number overflow inside the hose -
+	   reserve some space for bridges. */
+	if (next_busno > 224) {
+		next_busno = 0;
+		need_domain_info = 1;
 	}
+
+	pci_bus_size_bridges(bus);
+	pci_bus_assign_resources(bus);
+	pci_bus_add_devices(bus);
 }
 
 /*
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 96ac69c..efb00ec 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -86,6 +86,9 @@ config ARCH_DEFCONFIG
 	default "arch/sparc/configs/sparc32_defconfig" if SPARC32
 	default "arch/sparc/configs/sparc64_defconfig" if SPARC64
 
+config ARCH_PROC_KCORE_TEXT
+	def_bool y
+
 config IOMMU_HELPER
 	bool
 	default y if SPARC64
diff --git a/arch/sparc/include/asm/hypervisor.h b/arch/sparc/include/asm/hypervisor.h
index 4f6725f..f5b6537 100644
--- a/arch/sparc/include/asm/hypervisor.h
+++ b/arch/sparc/include/asm/hypervisor.h
@@ -2957,6 +2957,17 @@ unsigned long sun4v_t5_set_perfreg(unsigned long reg_num,
 				   unsigned long reg_val);
 #endif
 
+
+#define HV_FAST_M7_GET_PERFREG	0x43
+#define HV_FAST_M7_SET_PERFREG	0x44
+
+#ifndef	__ASSEMBLY__
+unsigned long sun4v_m7_get_perfreg(unsigned long reg_num,
+				      unsigned long *reg_val);
+unsigned long sun4v_m7_set_perfreg(unsigned long reg_num,
+				      unsigned long reg_val);
+#endif
+
 /* Function numbers for HV_CORE_TRAP.  */
 #define HV_CORE_SET_VER			0x00
 #define HV_CORE_PUTCHAR			0x01
@@ -2981,6 +2992,7 @@ unsigned long sun4v_t5_set_perfreg(unsigned long reg_num,
 #define HV_GRP_SDIO			0x0108
 #define HV_GRP_SDIO_ERR			0x0109
 #define HV_GRP_REBOOT_DATA		0x0110
+#define HV_GRP_M7_PERF			0x0114
 #define HV_GRP_NIAG_PERF		0x0200
 #define HV_GRP_FIRE_PERF		0x0201
 #define HV_GRP_N2_CPU			0x0202
diff --git a/arch/sparc/include/asm/io_64.h b/arch/sparc/include/asm/io_64.h
index 9b672be..50d4840 100644
--- a/arch/sparc/include/asm/io_64.h
+++ b/arch/sparc/include/asm/io_64.h
@@ -407,16 +407,16 @@ static inline void iounmap(volatile void __iomem *addr)
 {
 }
 
-#define ioread8(X)			readb(X)
-#define ioread16(X)			readw(X)
-#define ioread16be(X)			__raw_readw(X)
-#define ioread32(X)			readl(X)
-#define ioread32be(X)			__raw_readl(X)
-#define iowrite8(val,X)			writeb(val,X)
-#define iowrite16(val,X)		writew(val,X)
-#define iowrite16be(val,X)		__raw_writew(val,X)
-#define iowrite32(val,X)		writel(val,X)
-#define iowrite32be(val,X)		__raw_writel(val,X)
+#define ioread8			readb
+#define ioread16		readw
+#define ioread16be		__raw_readw
+#define ioread32		readl
+#define ioread32be		__raw_readl
+#define iowrite8		writeb
+#define iowrite16		writew
+#define iowrite16be		__raw_writew
+#define iowrite32		writel
+#define iowrite32be		__raw_writel
 
 /* Create a virtual mapping cookie for an IO port range */
 void __iomem *ioport_map(unsigned long port, unsigned int nr);
diff --git a/arch/sparc/include/asm/jump_label.h b/arch/sparc/include/asm/jump_label.h
index ec2e2e2..cc9b04a 100644
--- a/arch/sparc/include/asm/jump_label.h
+++ b/arch/sparc/include/asm/jump_label.h
@@ -1,7 +1,7 @@
 #ifndef _ASM_SPARC_JUMP_LABEL_H
 #define _ASM_SPARC_JUMP_LABEL_H
 
-#ifdef __KERNEL__
+#ifndef __ASSEMBLY__
 
 #include <linux/types.h>
 
@@ -22,8 +22,6 @@ l_yes:
 	return true;
 }
 
-#endif /* __KERNEL__ */
-
 typedef u32 jump_label_t;
 
 struct jump_entry {
@@ -32,4 +30,5 @@ struct jump_entry {
 	jump_label_t key;
 };
 
+#endif  /* __ASSEMBLY__ */
 #endif
diff --git a/arch/sparc/include/asm/starfire.h b/arch/sparc/include/asm/starfire.h
index c100dc2..176fa0a 100644
--- a/arch/sparc/include/asm/starfire.h
+++ b/arch/sparc/include/asm/starfire.h
@@ -12,7 +12,6 @@
 extern int this_is_starfire;
 
 void check_if_starfire(void);
-int starfire_hard_smp_processor_id(void);
 void starfire_hookup(int);
 unsigned int starfire_translate(unsigned long imap, unsigned int upaid);
 
diff --git a/arch/sparc/kernel/entry.h b/arch/sparc/kernel/entry.h
index 88d322b..07cc49e5 100644
--- a/arch/sparc/kernel/entry.h
+++ b/arch/sparc/kernel/entry.h
@@ -98,11 +98,7 @@ void sun4v_do_mna(struct pt_regs *regs,
 void do_privop(struct pt_regs *regs);
 void do_privact(struct pt_regs *regs);
 void do_cee(struct pt_regs *regs);
-void do_cee_tl1(struct pt_regs *regs);
-void do_dae_tl1(struct pt_regs *regs);
-void do_iae_tl1(struct pt_regs *regs);
 void do_div0_tl1(struct pt_regs *regs);
-void do_fpdis_tl1(struct pt_regs *regs);
 void do_fpieee_tl1(struct pt_regs *regs);
 void do_fpother_tl1(struct pt_regs *regs);
 void do_ill_tl1(struct pt_regs *regs);
diff --git a/arch/sparc/kernel/hvapi.c b/arch/sparc/kernel/hvapi.c
index 5c55145..662500f 100644
--- a/arch/sparc/kernel/hvapi.c
+++ b/arch/sparc/kernel/hvapi.c
@@ -48,6 +48,7 @@ static struct api_info api_table[] = {
 	{ .group = HV_GRP_VT_CPU,				},
 	{ .group = HV_GRP_T5_CPU,				},
 	{ .group = HV_GRP_DIAG,		.flags = FLAG_PRE_API	},
+	{ .group = HV_GRP_M7_PERF,				},
 };
 
 static DEFINE_SPINLOCK(hvapi_lock);
diff --git a/arch/sparc/kernel/hvcalls.S b/arch/sparc/kernel/hvcalls.S
index caedf83..afbaba5 100644
--- a/arch/sparc/kernel/hvcalls.S
+++ b/arch/sparc/kernel/hvcalls.S
@@ -837,3 +837,19 @@ ENTRY(sun4v_t5_set_perfreg)
 	retl
 	 nop
 ENDPROC(sun4v_t5_set_perfreg)
+
+ENTRY(sun4v_m7_get_perfreg)
+	mov	%o1, %o4
+	mov	HV_FAST_M7_GET_PERFREG, %o5
+	ta	HV_FAST_TRAP
+	stx	%o1, [%o4]
+	retl
+	nop
+ENDPROC(sun4v_m7_get_perfreg)
+
+ENTRY(sun4v_m7_set_perfreg)
+	mov	HV_FAST_M7_SET_PERFREG, %o5
+	ta	HV_FAST_TRAP
+	retl
+	nop
+ENDPROC(sun4v_m7_set_perfreg)
diff --git a/arch/sparc/kernel/leon_pci.c b/arch/sparc/kernel/leon_pci.c
index 899b720..4371f72 100644
--- a/arch/sparc/kernel/leon_pci.c
+++ b/arch/sparc/kernel/leon_pci.c
@@ -34,15 +34,17 @@ void leon_pci_init(struct platform_device *ofdev, struct leon_pci_info *info)
 
 	root_bus = pci_scan_root_bus(&ofdev->dev, 0, info->ops, info,
 				     &resources);
-	if (root_bus) {
-		/* Setup IRQs of all devices using custom routines */
-		pci_fixup_irqs(pci_common_swizzle, info->map_irq);
-
-		/* Assign devices with resources */
-		pci_assign_unassigned_resources();
-	} else {
+	if (!root_bus) {
 		pci_free_resource_list(&resources);
+		return;
 	}
+
+	/* Setup IRQs of all devices using custom routines */
+	pci_fixup_irqs(pci_common_swizzle, info->map_irq);
+
+	/* Assign devices with resources */
+	pci_assign_unassigned_resources();
+	pci_bus_add_devices(root_bus);
 }
 
 void pcibios_fixup_bus(struct pci_bus *pbus)
diff --git a/arch/sparc/kernel/pci.c b/arch/sparc/kernel/pci.c
index 9ce5afe..6f7251f 100644
--- a/arch/sparc/kernel/pci.c
+++ b/arch/sparc/kernel/pci.c
@@ -639,10 +639,7 @@ static void pci_claim_bus_resources(struct pci_bus *bus)
 				       (unsigned long long)r->end,
 				       (unsigned int)r->flags);
 
-			if (pci_claim_resource(dev, i) == 0)
-				continue;
-
-			pci_claim_bridge_resource(dev, i);
+			pci_claim_resource(dev, i);
 		}
 	}
 
@@ -677,11 +674,10 @@ struct pci_bus *pci_scan_one_pbm(struct pci_pbm_info *pbm,
 	}
 
 	pci_of_scan_bus(pbm, node, bus);
-	pci_bus_add_devices(bus);
 	pci_bus_register_of_sysfs(bus);
 
 	pci_claim_bus_resources(bus);
-
+	pci_bus_add_devices(bus);
 	return bus;
 }
 
diff --git a/arch/sparc/kernel/pcic.c b/arch/sparc/kernel/pcic.c
index 6cc78c2..24384e1 100644
--- a/arch/sparc/kernel/pcic.c
+++ b/arch/sparc/kernel/pcic.c
@@ -391,12 +391,16 @@ static void __init pcic_pbm_scan_bus(struct linux_pcic *pcic)
 	struct linux_pbm_info *pbm = &pcic->pbm;
 
 	pbm->pci_bus = pci_scan_bus(pbm->pci_first_busno, &pcic_ops, pbm);
+	if (!pbm->pci_bus)
+		return;
+
 #if 0 /* deadwood transplanted from sparc64 */
 	pci_fill_in_pbm_cookies(pbm->pci_bus, pbm, pbm->prom_node);
 	pci_record_assignments(pbm, pbm->pci_bus);
 	pci_assign_unassigned(pbm, pbm->pci_bus);
 	pci_fixup_irq(pbm, pbm->pci_bus);
 #endif
+	pci_bus_add_devices(pbm->pci_bus);
 }
 
 /*
diff --git a/arch/sparc/kernel/pcr.c b/arch/sparc/kernel/pcr.c
index 7e967c8..eb978c7 100644
--- a/arch/sparc/kernel/pcr.c
+++ b/arch/sparc/kernel/pcr.c
@@ -217,6 +217,31 @@ static const struct pcr_ops n5_pcr_ops = {
 	.pcr_nmi_disable	= PCR_N4_PICNPT,
 };
 
+static u64 m7_pcr_read(unsigned long reg_num)
+{
+	unsigned long val;
+
+	(void) sun4v_m7_get_perfreg(reg_num, &val);
+
+	return val;
+}
+
+static void m7_pcr_write(unsigned long reg_num, u64 val)
+{
+	(void) sun4v_m7_set_perfreg(reg_num, val);
+}
+
+static const struct pcr_ops m7_pcr_ops = {
+	.read_pcr		= m7_pcr_read,
+	.write_pcr		= m7_pcr_write,
+	.read_pic		= n4_pic_read,
+	.write_pic		= n4_pic_write,
+	.nmi_picl_value		= n4_picl_value,
+	.pcr_nmi_enable		= (PCR_N4_PICNPT | PCR_N4_STRACE |
+				   PCR_N4_UTRACE | PCR_N4_TOE |
+				   (26 << PCR_N4_SL_SHIFT)),
+	.pcr_nmi_disable	= PCR_N4_PICNPT,
+};
 
 static unsigned long perf_hsvc_group;
 static unsigned long perf_hsvc_major;
@@ -248,6 +273,10 @@ static int __init register_perf_hsvc(void)
 			perf_hsvc_group = HV_GRP_T5_CPU;
 			break;
 
+		case SUN4V_CHIP_SPARC_M7:
+			perf_hsvc_group = HV_GRP_M7_PERF;
+			break;
+
 		default:
 			return -ENODEV;
 		}
@@ -293,6 +322,10 @@ static int __init setup_sun4v_pcr_ops(void)
 		pcr_ops = &n5_pcr_ops;
 		break;
 
+	case SUN4V_CHIP_SPARC_M7:
+		pcr_ops = &m7_pcr_ops;
+		break;
+
 	default:
 		ret = -ENODEV;
 		break;
diff --git a/arch/sparc/kernel/perf_event.c b/arch/sparc/kernel/perf_event.c
index 46a5e45..86eebfa 100644
--- a/arch/sparc/kernel/perf_event.c
+++ b/arch/sparc/kernel/perf_event.c
@@ -792,6 +792,42 @@ static const struct sparc_pmu niagara4_pmu = {
 	.num_pic_regs	= 4,
 };
 
+static void sparc_m7_write_pmc(int idx, u64 val)
+{
+	u64 pcr;
+
+	pcr = pcr_ops->read_pcr(idx);
+	/* ensure ov and ntc are reset */
+	pcr &= ~(PCR_N4_OV | PCR_N4_NTC);
+
+	pcr_ops->write_pic(idx, val & 0xffffffff);
+
+	pcr_ops->write_pcr(idx, pcr);
+}
+
+static const struct sparc_pmu sparc_m7_pmu = {
+	.event_map	= niagara4_event_map,
+	.cache_map	= &niagara4_cache_map,
+	.max_events	= ARRAY_SIZE(niagara4_perfmon_event_map),
+	.read_pmc	= sparc_vt_read_pmc,
+	.write_pmc	= sparc_m7_write_pmc,
+	.upper_shift	= 5,
+	.lower_shift	= 5,
+	.event_mask	= 0x7ff,
+	.user_bit	= PCR_N4_UTRACE,
+	.priv_bit	= PCR_N4_STRACE,
+
+	/* We explicitly don't support hypervisor tracing. */
+	.hv_bit		= 0,
+
+	.irq_bit	= PCR_N4_TOE,
+	.upper_nop	= 0,
+	.lower_nop	= 0,
+	.flags		= 0,
+	.max_hw_events	= 4,
+	.num_pcrs	= 4,
+	.num_pic_regs	= 4,
+};
 static const struct sparc_pmu *sparc_pmu __read_mostly;
 
 static u64 event_encoding(u64 event_id, int idx)
@@ -960,6 +996,8 @@ out:
 	cpuc->pcr[0] |= cpuc->event[0]->hw.config_base;
 }
 
+static void sparc_pmu_start(struct perf_event *event, int flags);
+
 /* On this PMU each PIC has it's own PCR control register.  */
 static void calculate_multiple_pcrs(struct cpu_hw_events *cpuc)
 {
@@ -972,20 +1010,13 @@ static void calculate_multiple_pcrs(struct cpu_hw_events *cpuc)
 		struct perf_event *cp = cpuc->event[i];
 		struct hw_perf_event *hwc = &cp->hw;
 		int idx = hwc->idx;
-		u64 enc;
 
 		if (cpuc->current_idx[i] != PIC_NO_INDEX)
 			continue;
 
-		sparc_perf_event_set_period(cp, hwc, idx);
 		cpuc->current_idx[i] = idx;
 
-		enc = perf_event_get_enc(cpuc->events[i]);
-		cpuc->pcr[idx] &= ~mask_for_index(idx);
-		if (hwc->state & PERF_HES_STOPPED)
-			cpuc->pcr[idx] |= nop_for_index(idx);
-		else
-			cpuc->pcr[idx] |= event_encoding(enc, idx);
+		sparc_pmu_start(cp, PERF_EF_RELOAD);
 	}
 out:
 	for (i = 0; i < cpuc->n_events; i++) {
@@ -1101,7 +1132,6 @@ static void sparc_pmu_del(struct perf_event *event, int _flags)
 	int i;
 
 	local_irq_save(flags);
-	perf_pmu_disable(event->pmu);
 
 	for (i = 0; i < cpuc->n_events; i++) {
 		if (event == cpuc->event[i]) {
@@ -1127,7 +1157,6 @@ static void sparc_pmu_del(struct perf_event *event, int _flags)
 		}
 	}
 
-	perf_pmu_enable(event->pmu);
 	local_irq_restore(flags);
 }
 
@@ -1361,7 +1390,6 @@ static int sparc_pmu_add(struct perf_event *event, int ef_flags)
 	unsigned long flags;
 
 	local_irq_save(flags);
-	perf_pmu_disable(event->pmu);
 
 	n0 = cpuc->n_events;
 	if (n0 >= sparc_pmu->max_hw_events)
@@ -1394,7 +1422,6 @@ nocheck:
 
 	ret = 0;
 out:
-	perf_pmu_enable(event->pmu);
 	local_irq_restore(flags);
 	return ret;
 }
@@ -1667,6 +1694,10 @@ static bool __init supported_pmu(void)
 		sparc_pmu = &niagara4_pmu;
 		return true;
 	}
+	if (!strcmp(sparc_pmu_type, "sparc-m7")) {
+		sparc_pmu = &sparc_m7_pmu;
+		return true;
+	}
 	return false;
 }
 
diff --git a/arch/sparc/kernel/process_64.c b/arch/sparc/kernel/process_64.c
index 0be7bf9..46a5964 100644
--- a/arch/sparc/kernel/process_64.c
+++ b/arch/sparc/kernel/process_64.c
@@ -287,6 +287,8 @@ void arch_trigger_all_cpu_backtrace(bool include_self)
 			printk("             TPC[%lx] O7[%lx] I7[%lx] RPC[%lx]\n",
 			       gp->tpc, gp->o7, gp->i7, gp->rpc);
 		}
+
+		touch_nmi_watchdog();
 	}
 
 	memset(global_cpu_snapshot, 0, sizeof(global_cpu_snapshot));
@@ -362,6 +364,8 @@ static void pmu_snapshot_all_cpus(void)
 		       (cpu == this_cpu ? '*' : ' '), cpu,
 		       pp->pcr[0], pp->pcr[1], pp->pcr[2], pp->pcr[3],
 		       pp->pic[0], pp->pic[1], pp->pic[2], pp->pic[3]);
+
+		touch_nmi_watchdog();
 	}
 
 	memset(global_cpu_snapshot, 0, sizeof(global_cpu_snapshot));
diff --git a/arch/sparc/kernel/smp_64.c b/arch/sparc/kernel/smp_64.c
index da6f1a7..61139d9 100644
--- a/arch/sparc/kernel/smp_64.c
+++ b/arch/sparc/kernel/smp_64.c
@@ -1406,11 +1406,32 @@ void __irq_entry smp_receive_signal_client(int irq, struct pt_regs *regs)
 	scheduler_ipi();
 }
 
-/* This is a nop because we capture all other cpus
- * anyways when making the PROM active.
- */
+static void stop_this_cpu(void *dummy)
+{
+	prom_stopself();
+}
+
 void smp_send_stop(void)
 {
+	int cpu;
+
+	if (tlb_type == hypervisor) {
+		for_each_online_cpu(cpu) {
+			if (cpu == smp_processor_id())
+				continue;
+#ifdef CONFIG_SUN_LDOMS
+			if (ldom_domaining_enabled) {
+				unsigned long hv_err;
+				hv_err = sun4v_cpu_stop(cpu);
+				if (hv_err)
+					printk(KERN_ERR "sun4v_cpu_stop() "
+					       "failed err=%lu\n", hv_err);
+			} else
+#endif
+				prom_stopcpu_cpuid(cpu);
+		}
+	} else
+		smp_call_function(stop_this_cpu, NULL, 0);
 }
 
 /**
diff --git a/arch/sparc/kernel/starfire.c b/arch/sparc/kernel/starfire.c
index 82281a5..167fdfd 100644
--- a/arch/sparc/kernel/starfire.c
+++ b/arch/sparc/kernel/starfire.c
@@ -28,11 +28,6 @@ void check_if_starfire(void)
 		this_is_starfire = 1;
 }
 
-int starfire_hard_smp_processor_id(void)
-{
-	return upa_readl(0x1fff40000d0UL);
-}
-
 /*
  * Each Starfire board has 32 registers which perform translation
  * and delivery of traditional interrupt packets into the extended
diff --git a/arch/sparc/kernel/sys_sparc_64.c b/arch/sparc/kernel/sys_sparc_64.c
index c85403d..30e7ddb 100644
--- a/arch/sparc/kernel/sys_sparc_64.c
+++ b/arch/sparc/kernel/sys_sparc_64.c
@@ -333,7 +333,7 @@ SYSCALL_DEFINE6(sparc_ipc, unsigned int, call, int, first, unsigned long, second
 	long err;
 
 	/* No need for backward compatibility. We can start fresh... */
-	if (call <= SEMCTL) {
+	if (call <= SEMTIMEDOP) {
 		switch (call) {
 		case SEMOP:
 			err = sys_semtimedop(first, ptr,
diff --git a/arch/sparc/kernel/time_32.c b/arch/sparc/kernel/time_32.c
index 2f80d23..18147a5 100644
--- a/arch/sparc/kernel/time_32.c
+++ b/arch/sparc/kernel/time_32.c
@@ -181,17 +181,13 @@ static struct clocksource timer_cs = {
 	.rating	= 100,
 	.read	= timer_cs_read,
 	.mask	= CLOCKSOURCE_MASK(64),
-	.shift	= 2,
 	.flags	= CLOCK_SOURCE_IS_CONTINUOUS,
 };
 
 static __init int setup_timer_cs(void)
 {
 	timer_cs_enabled = 1;
-	timer_cs.mult = clocksource_hz2mult(sparc_config.clock_rate,
-	                                    timer_cs.shift);
-
-	return clocksource_register(&timer_cs);
+	return clocksource_register_hz(&timer_cs, sparc_config.clock_rate);
 }
 
 #ifdef CONFIG_SMP
diff --git a/arch/sparc/kernel/traps_64.c b/arch/sparc/kernel/traps_64.c
index a27651e..0e69974 100644
--- a/arch/sparc/kernel/traps_64.c
+++ b/arch/sparc/kernel/traps_64.c
@@ -2427,6 +2427,8 @@ void __noreturn die_if_kernel(char *str, struct pt_regs *regs)
 		}
 		user_instruction_dump ((unsigned int __user *) regs->tpc);
 	}
+	if (panic_on_oops)
+		panic("Fatal exception");
 	if (regs->tstate & TSTATE_PRIV)
 		do_exit(SIGKILL);
 	do_exit(SIGSEGV);
@@ -2564,27 +2566,6 @@ void do_cee(struct pt_regs *regs)
 	die_if_kernel("TL0: Cache Error Exception", regs);
 }
 
-void do_cee_tl1(struct pt_regs *regs)
-{
-	exception_enter();
-	dump_tl1_traplog((struct tl1_traplog *)(regs + 1));
-	die_if_kernel("TL1: Cache Error Exception", regs);
-}
-
-void do_dae_tl1(struct pt_regs *regs)
-{
-	exception_enter();
-	dump_tl1_traplog((struct tl1_traplog *)(regs + 1));
-	die_if_kernel("TL1: Data Access Exception", regs);
-}
-
-void do_iae_tl1(struct pt_regs *regs)
-{
-	exception_enter();
-	dump_tl1_traplog((struct tl1_traplog *)(regs + 1));
-	die_if_kernel("TL1: Instruction Access Exception", regs);
-}
-
 void do_div0_tl1(struct pt_regs *regs)
 {
 	exception_enter();
@@ -2592,13 +2573,6 @@ void do_div0_tl1(struct pt_regs *regs)
 	die_if_kernel("TL1: DIV0 Exception", regs);
 }
 
-void do_fpdis_tl1(struct pt_regs *regs)
-{
-	exception_enter();
-	dump_tl1_traplog((struct tl1_traplog *)(regs + 1));
-	die_if_kernel("TL1: FPU Disabled", regs);
-}
-
 void do_fpieee_tl1(struct pt_regs *regs)
 {
 	exception_enter();
diff --git a/arch/sparc/lib/memmove.S b/arch/sparc/lib/memmove.S
index b7f6334..857ad4f 100644
--- a/arch/sparc/lib/memmove.S
+++ b/arch/sparc/lib/memmove.S
@@ -8,9 +8,11 @@
 
 	.text
 ENTRY(memmove) /* o0=dst o1=src o2=len */
-	mov		%o0, %g1
+	brz,pn		%o2, 99f
+	 mov		%o0, %g1
+
 	cmp		%o0, %o1
-	bleu,pt		%xcc, memcpy
+	bleu,pt		%xcc, 2f
 	 add		%o1, %o2, %g7
 	cmp		%g7, %o0
 	bleu,pt		%xcc, memcpy
@@ -24,7 +26,34 @@ ENTRY(memmove) /* o0=dst o1=src o2=len */
 	stb		%g7, [%o0]
 	bne,pt		%icc, 1b
 	 sub		%o0, 1, %o0
-
+99:
 	retl
 	 mov		%g1, %o0
+
+	/* We can't just call memcpy for these memmove cases.  On some
+	 * chips the memcpy uses cache initializing stores and when dst
+	 * and src are close enough, those can clobber the source data
+	 * before we've loaded it in.
+	 */
+2:	or		%o0, %o1, %g7
+	or		%o2, %g7, %g7
+	andcc		%g7, 0x7, %g0
+	bne,pn		%xcc, 4f
+	 nop
+
+3:	ldx		[%o1], %g7
+	add		%o1, 8, %o1
+	subcc		%o2, 8, %o2
+	add		%o0, 8, %o0
+	bne,pt		%icc, 3b
+	 stx		%g7, [%o0 - 0x8]
+	ba,a,pt		%xcc, 99b
+
+4:	ldub		[%o1], %g7
+	add		%o1, 1, %o1
+	subcc		%o2, 1, %o2
+	add		%o0, 1, %o0
+	bne,pt		%icc, 4b
+	 stb		%g7, [%o0 - 0x1]
+	ba,a,pt		%xcc, 99b
 ENDPROC(memmove)
diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c
index 3ea267c..4ca0d6b 100644
--- a/arch/sparc/mm/init_64.c
+++ b/arch/sparc/mm/init_64.c
@@ -2820,7 +2820,7 @@ static int __init report_memory(void)
 
 	return 0;
 }
-device_initcall(report_memory);
+arch_initcall(report_memory);
 
 #ifdef CONFIG_SMP
 #define do_flush_tlb_kernel_range	smp_flush_tlb_kernel_range
diff --git a/arch/tile/kernel/pci.c b/arch/tile/kernel/pci.c
index 325df47..9475a74 100644
--- a/arch/tile/kernel/pci.c
+++ b/arch/tile/kernel/pci.c
@@ -339,6 +339,8 @@ int __init pcibios_init(void)
 			struct pci_bus *next_bus;
 			struct pci_dev *dev;
 
+			pci_bus_add_devices(root_bus);
+
 			list_for_each_entry(dev, &root_bus->devices, bus_list) {
 				/*
 				 * Find the PCI host controller, ie. the 1st
diff --git a/arch/tile/kernel/pci_gx.c b/arch/tile/kernel/pci_gx.c
index 2c95f37..b1df847 100644
--- a/arch/tile/kernel/pci_gx.c
+++ b/arch/tile/kernel/pci_gx.c
@@ -1030,6 +1030,8 @@ int __init pcibios_init(void)
 alloc_mem_map_failed:
 			break;
 		}
+
+		pci_bus_add_devices(root_bus);
 	}
 
 	return 0;
diff --git a/arch/tile/kernel/time.c b/arch/tile/kernel/time.c
index d412b08..00178ec 100644
--- a/arch/tile/kernel/time.c
+++ b/arch/tile/kernel/time.c
@@ -257,34 +257,34 @@ void update_vsyscall_tz(void)
 
 void update_vsyscall(struct timekeeper *tk)
 {
-	if (tk->tkr.clock != &cycle_counter_cs)
+	if (tk->tkr_mono.clock != &cycle_counter_cs)
 		return;
 
 	write_seqcount_begin(&vdso_data->tb_seq);
 
-	vdso_data->cycle_last		= tk->tkr.cycle_last;
-	vdso_data->mask			= tk->tkr.mask;
-	vdso_data->mult			= tk->tkr.mult;
-	vdso_data->shift		= tk->tkr.shift;
+	vdso_data->cycle_last		= tk->tkr_mono.cycle_last;
+	vdso_data->mask			= tk->tkr_mono.mask;
+	vdso_data->mult			= tk->tkr_mono.mult;
+	vdso_data->shift		= tk->tkr_mono.shift;
 
 	vdso_data->wall_time_sec	= tk->xtime_sec;
-	vdso_data->wall_time_snsec	= tk->tkr.xtime_nsec;
+	vdso_data->wall_time_snsec	= tk->tkr_mono.xtime_nsec;
 
 	vdso_data->monotonic_time_sec	= tk->xtime_sec
 					+ tk->wall_to_monotonic.tv_sec;
-	vdso_data->monotonic_time_snsec	= tk->tkr.xtime_nsec
+	vdso_data->monotonic_time_snsec	= tk->tkr_mono.xtime_nsec
 					+ ((u64)tk->wall_to_monotonic.tv_nsec
-						<< tk->tkr.shift);
+						<< tk->tkr_mono.shift);
 	while (vdso_data->monotonic_time_snsec >=
-					(((u64)NSEC_PER_SEC) << tk->tkr.shift)) {
+					(((u64)NSEC_PER_SEC) << tk->tkr_mono.shift)) {
 		vdso_data->monotonic_time_snsec -=
-					((u64)NSEC_PER_SEC) << tk->tkr.shift;
+					((u64)NSEC_PER_SEC) << tk->tkr_mono.shift;
 		vdso_data->monotonic_time_sec++;
 	}
 
 	vdso_data->wall_time_coarse_sec	= tk->xtime_sec;
-	vdso_data->wall_time_coarse_nsec = (long)(tk->tkr.xtime_nsec >>
-						 tk->tkr.shift);
+	vdso_data->wall_time_coarse_nsec = (long)(tk->tkr_mono.xtime_nsec >>
+						 tk->tkr_mono.shift);
 
 	vdso_data->monotonic_time_coarse_sec =
 		vdso_data->wall_time_coarse_sec + tk->wall_to_monotonic.tv_sec;
diff --git a/arch/unicore32/kernel/pci.c b/arch/unicore32/kernel/pci.c
index 374a055..d45fa5f 100644
--- a/arch/unicore32/kernel/pci.c
+++ b/arch/unicore32/kernel/pci.c
@@ -266,17 +266,10 @@ static int __init pci_common_init(void)
 	pci_fixup_irqs(pci_common_swizzle, pci_puv3_map_irq);
 
 	if (!pci_has_flag(PCI_PROBE_ONLY)) {
-		/*
-		 * Size the bridge windows.
-		 */
 		pci_bus_size_bridges(puv3_bus);
-
-		/*
-		 * Assign resources.
-		 */
 		pci_bus_assign_resources(puv3_bus);
 	}
-
+	pci_bus_add_devices(puv3_bus);
 	return 0;
 }
 subsys_initcall(pci_common_init);
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index c2fb8a8..faff693 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -235,12 +235,10 @@ config ARCH_WANT_GENERAL_HUGETLB
 	def_bool y
 
 config ZONE_DMA32
-	bool
-	default X86_64
+	def_bool y if X86_64
 
 config AUDIT_ARCH
-	bool
-	default X86_64
+	def_bool y if X86_64
 
 config ARCH_SUPPORTS_OPTIMIZED_INLINING
 	def_bool y
@@ -499,6 +497,7 @@ config X86_INTEL_QUARK
 	depends on X86_IO_APIC
 	select IOSF_MBI
 	select INTEL_IMR
+	select COMMON_CLK
 	---help---
 	  Select to include support for Quark X1000 SoC.
 	  Say Y here if you have a Quark based system such as the Arduino
@@ -890,7 +889,8 @@ config UP_LATE_INIT
        depends on !SMP && X86_LOCAL_APIC
 
 config X86_UP_APIC
-	bool "Local APIC support on uniprocessors"
+	bool "Local APIC support on uniprocessors" if !PCI_MSI
+	default PCI_MSI
 	depends on X86_32 && !SMP && !X86_32_NON_STANDARD
 	---help---
 	  A local APIC (Advanced Programmable Interrupt Controller) is an
@@ -902,10 +902,6 @@ config X86_UP_APIC
 	  performance counters), and the NMI watchdog which detects hard
 	  lockups.
 
-config X86_UP_APIC_MSI
-	def_bool y
-	select X86_UP_APIC if X86_32 && !SMP && !X86_32_NON_STANDARD && PCI_MSI
-
 config X86_UP_IOAPIC
 	bool "IO-APIC support on uniprocessors"
 	depends on X86_UP_APIC
@@ -924,8 +920,8 @@ config X86_LOCAL_APIC
 	select GENERIC_IRQ_LEGACY_ALLOC_HWIRQ
 
 config X86_IO_APIC
-	def_bool X86_64 || SMP || X86_32_NON_STANDARD || X86_UP_IOAPIC
-	depends on X86_LOCAL_APIC
+	def_bool y
+	depends on X86_LOCAL_APIC || X86_UP_IOAPIC
 	select IRQ_DOMAIN
 
 config X86_REROUTE_FOR_BROKEN_BOOT_IRQS
@@ -1144,10 +1140,10 @@ config MICROCODE_OLD_INTERFACE
 	depends on MICROCODE
 
 config MICROCODE_INTEL_EARLY
-	def_bool n
+	bool
 
 config MICROCODE_AMD_EARLY
-	def_bool n
+	bool
 
 config MICROCODE_EARLY
 	bool "Early load microcode"
@@ -1299,14 +1295,14 @@ config ARCH_DMA_ADDR_T_64BIT
 	def_bool y
 	depends on X86_64 || HIGHMEM64G
 
-config DIRECT_GBPAGES
-	bool "Enable 1GB pages for kernel pagetables" if EXPERT
-	default y
-	depends on X86_64
+config X86_DIRECT_GBPAGES
+	def_bool y
+	depends on X86_64 && !DEBUG_PAGEALLOC && !KMEMCHECK
 	---help---
-	  Allow the kernel linear mapping to use 1GB pages on CPUs that
-	  support it. This can improve the kernel's performance a tiny bit by
-	  reducing TLB pressure. If in doubt, say "Y".
+	  Certain kernel features effectively disable kernel
+	  linear 1 GB mappings (even if the CPU otherwise
+	  supports them), so don't confuse the user by printing
+	  that we have them enabled.
 
 # Common NUMA Features
 config NUMA
@@ -1746,14 +1742,11 @@ config KEXEC_VERIFY_SIG
 	depends on KEXEC_FILE
 	---help---
 	  This option makes kernel signature verification mandatory for
-	  kexec_file_load() syscall. If kernel is signature can not be
-	  verified, kexec_file_load() will fail.
-
-	  This option enforces signature verification at generic level.
-	  One needs to enable signature verification for type of kernel
-	  image being loaded to make sure it works. For example, enable
-	  bzImage signature verification option to be able to load and
-	  verify signatures of bzImage. Otherwise kernel loading will fail.
+	  the kexec_file_load() syscall.
+
+	  In addition to that option, you need to enable signature
+	  verification for the corresponding kernel image type being
+	  loaded in order for this to work.
 
 config KEXEC_BZIMAGE_VERIFY_SIG
 	bool "Enable bzImage signature verification support"
diff --git a/arch/x86/boot/compressed/aslr.c b/arch/x86/boot/compressed/aslr.c
index 7083c16..d7b1f65 100644
--- a/arch/x86/boot/compressed/aslr.c
+++ b/arch/x86/boot/compressed/aslr.c
@@ -14,13 +14,6 @@
 static const char build_str[] = UTS_RELEASE " (" LINUX_COMPILE_BY "@"
 		LINUX_COMPILE_HOST ") (" LINUX_COMPILER ") " UTS_VERSION;
 
-struct kaslr_setup_data {
-	__u64 next;
-	__u32 type;
-	__u32 len;
-	__u8 data[1];
-} kaslr_setup_data;
-
 #define I8254_PORT_CONTROL	0x43
 #define I8254_PORT_COUNTER0	0x40
 #define I8254_CMD_READBACK	0xC0
@@ -302,28 +295,7 @@ static unsigned long find_random_addr(unsigned long minimum,
 	return slots_fetch_random();
 }
 
-static void add_kaslr_setup_data(struct boot_params *params, __u8 enabled)
-{
-	struct setup_data *data;
-
-	kaslr_setup_data.type = SETUP_KASLR;
-	kaslr_setup_data.len = 1;
-	kaslr_setup_data.next = 0;
-	kaslr_setup_data.data[0] = enabled;
-
-	data = (struct setup_data *)(unsigned long)params->hdr.setup_data;
-
-	while (data && data->next)
-		data = (struct setup_data *)(unsigned long)data->next;
-
-	if (data)
-		data->next = (unsigned long)&kaslr_setup_data;
-	else
-		params->hdr.setup_data = (unsigned long)&kaslr_setup_data;
-
-}
-
-unsigned char *choose_kernel_location(struct boot_params *params,
+unsigned char *choose_kernel_location(struct boot_params *boot_params,
 				      unsigned char *input,
 				      unsigned long input_size,
 				      unsigned char *output,
@@ -335,17 +307,16 @@ unsigned char *choose_kernel_location(struct boot_params *params,
 #ifdef CONFIG_HIBERNATION
 	if (!cmdline_find_option_bool("kaslr")) {
 		debug_putstr("KASLR disabled by default...\n");
-		add_kaslr_setup_data(params, 0);
 		goto out;
 	}
 #else
 	if (cmdline_find_option_bool("nokaslr")) {
 		debug_putstr("KASLR disabled by cmdline...\n");
-		add_kaslr_setup_data(params, 0);
 		goto out;
 	}
 #endif
-	add_kaslr_setup_data(params, 1);
+
+	boot_params->hdr.loadflags |= KASLR_FLAG;
 
 	/* Record the various known unsafe memory ranges. */
 	mem_avoid_init((unsigned long)input, input_size,
diff --git a/arch/x86/boot/compressed/head_32.S b/arch/x86/boot/compressed/head_32.S
index 1d7fbbc..8ef964d 100644
--- a/arch/x86/boot/compressed/head_32.S
+++ b/arch/x86/boot/compressed/head_32.S
@@ -29,6 +29,7 @@
 #include <asm/page_types.h>
 #include <asm/boot.h>
 #include <asm/asm-offsets.h>
+#include <asm/bootparam.h>
 
 	__HEAD
 ENTRY(startup_32)
@@ -102,7 +103,7 @@ preferred_addr:
 	 * Test KEEP_SEGMENTS flag to see if the bootloader is asking
 	 * us to not reload segments
 	 */
-	testb	$(1<<6), BP_loadflags(%esi)
+	testb	$KEEP_SEGMENTS, BP_loadflags(%esi)
 	jnz	1f
 
 	cli
diff --git a/arch/x86/boot/compressed/head_64.S b/arch/x86/boot/compressed/head_64.S
index 6b1766c..b0c0d16 100644
--- a/arch/x86/boot/compressed/head_64.S
+++ b/arch/x86/boot/compressed/head_64.S
@@ -31,6 +31,7 @@
 #include <asm/msr.h>
 #include <asm/processor-flags.h>
 #include <asm/asm-offsets.h>
+#include <asm/bootparam.h>
 
 	__HEAD
 	.code32
@@ -46,7 +47,7 @@ ENTRY(startup_32)
 	 * Test KEEP_SEGMENTS flag to see if the bootloader is asking
 	 * us to not reload segments
 	 */
-	testb $(1<<6), BP_loadflags(%esi)
+	testb $KEEP_SEGMENTS, BP_loadflags(%esi)
 	jnz 1f
 
 	cli
@@ -164,7 +165,7 @@ ENTRY(startup_32)
 	/* After gdt is loaded */
 	xorl	%eax, %eax
 	lldt	%ax
-	movl    $0x20, %eax
+	movl    $__BOOT_TSS, %eax
 	ltr	%ax
 
 	/*
diff --git a/arch/x86/boot/compressed/misc.c b/arch/x86/boot/compressed/misc.c
index 5903089..a107b93 100644
--- a/arch/x86/boot/compressed/misc.c
+++ b/arch/x86/boot/compressed/misc.c
@@ -377,6 +377,9 @@ asmlinkage __visible void *decompress_kernel(void *rmode, memptr heap,
 
 	real_mode = rmode;
 
+	/* Clear it for solely in-kernel use */
+	real_mode->hdr.loadflags &= ~KASLR_FLAG;
+
 	sanitize_boot_params(real_mode);
 
 	if (real_mode->screen_info.orig_video_mode == 7) {
@@ -401,8 +404,7 @@ asmlinkage __visible void *decompress_kernel(void *rmode, memptr heap,
 	 * the entire decompressed kernel plus relocation table, or the
 	 * entire decompressed kernel plus .bss and .brk sections.
 	 */
-	output = choose_kernel_location(real_mode, input_data, input_len,
-					output,
+	output = choose_kernel_location(real_mode, input_data, input_len, output,
 					output_len > run_size ? output_len
 							      : run_size);
 
diff --git a/arch/x86/boot/compressed/misc.h b/arch/x86/boot/compressed/misc.h
index ee3576b..89dd0d7 100644
--- a/arch/x86/boot/compressed/misc.h
+++ b/arch/x86/boot/compressed/misc.h
@@ -57,7 +57,7 @@ int cmdline_find_option_bool(const char *option);
 
 #if CONFIG_RANDOMIZE_BASE
 /* aslr.c */
-unsigned char *choose_kernel_location(struct boot_params *params,
+unsigned char *choose_kernel_location(struct boot_params *boot_params,
 				      unsigned char *input,
 				      unsigned long input_size,
 				      unsigned char *output,
@@ -66,7 +66,7 @@ unsigned char *choose_kernel_location(struct boot_params *params,
 bool has_cpuflag(int flag);
 #else
 static inline
-unsigned char *choose_kernel_location(struct boot_params *params,
+unsigned char *choose_kernel_location(struct boot_params *boot_params,
 				      unsigned char *input,
 				      unsigned long input_size,
 				      unsigned char *output,
diff --git a/arch/x86/boot/string.c b/arch/x86/boot/string.c
index 493f3fd..318b846 100644
--- a/arch/x86/boot/string.c
+++ b/arch/x86/boot/string.c
@@ -30,7 +30,7 @@ int strcmp(const char *str1, const char *str2)
 	int delta = 0;
 
 	while (*s1 || *s2) {
-		delta = *s2 - *s1;
+		delta = *s1 - *s2;
 		if (delta)
 			return delta;
 		s1++;
diff --git a/arch/x86/boot/video-mode.c b/arch/x86/boot/video-mode.c
index 748e8d0..aa8a96b 100644
--- a/arch/x86/boot/video-mode.c
+++ b/arch/x86/boot/video-mode.c
@@ -22,10 +22,8 @@
 /*
  * Common variables
  */
-int adapter;			/* 0=CGA/MDA/HGC, 1=EGA, 2=VGA+ */
-u16 video_segment;
+int adapter;		/* 0=CGA/MDA/HGC, 1=EGA, 2=VGA+ */
 int force_x, force_y;	/* Don't query the BIOS for cols/rows */
-
 int do_restore;		/* Screen contents changed during mode flip */
 int graphic_mode;	/* Graphic mode with linear frame buffer */
 
diff --git a/arch/x86/boot/video.c b/arch/x86/boot/video.c
index 43eda28..05111bb 100644
--- a/arch/x86/boot/video.c
+++ b/arch/x86/boot/video.c
@@ -17,6 +17,8 @@
 #include "video.h"
 #include "vesa.h"
 
+static u16 video_segment;
+
 static void store_cursor_position(void)
 {
 	struct biosregs ireg, oreg;
diff --git a/arch/x86/boot/video.h b/arch/x86/boot/video.h
index 0bb2549..b54e032 100644
--- a/arch/x86/boot/video.h
+++ b/arch/x86/boot/video.h
@@ -91,7 +91,6 @@ int mode_defined(u16 mode);	/* video.c */
 #define ADAPTER_VGA	2
 
 extern int adapter;
-extern u16 video_segment;
 extern int force_x, force_y;	/* Don't query the BIOS for cols/rows */
 extern int do_restore;		/* Restore screen contents */
 extern int graphic_mode;	/* Graphics mode with linear frame buffer */
diff --git a/arch/x86/configs/i386_defconfig b/arch/x86/configs/i386_defconfig
index 419819d..aaa1118 100644
--- a/arch/x86/configs/i386_defconfig
+++ b/arch/x86/configs/i386_defconfig
@@ -248,7 +248,7 @@ CONFIG_USB=y
 CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
 CONFIG_USB_MON=y
 CONFIG_USB_EHCI_HCD=y
-# CONFIG_USB_EHCI_TT_NEWSCHED is not set
+CONFIG_USB_EHCI_TT_NEWSCHED=y
 CONFIG_USB_OHCI_HCD=y
 CONFIG_USB_UHCI_HCD=y
 CONFIG_USB_PRINTER=y
diff --git a/arch/x86/configs/x86_64_defconfig b/arch/x86/configs/x86_64_defconfig
index 4c311dd..315b861 100644
--- a/arch/x86/configs/x86_64_defconfig
+++ b/arch/x86/configs/x86_64_defconfig
@@ -243,7 +243,7 @@ CONFIG_USB=y
 CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
 CONFIG_USB_MON=y
 CONFIG_USB_EHCI_HCD=y
-# CONFIG_USB_EHCI_TT_NEWSCHED is not set
+CONFIG_USB_EHCI_TT_NEWSCHED=y
 CONFIG_USB_OHCI_HCD=y
 CONFIG_USB_UHCI_HCD=y
 CONFIG_USB_PRINTER=y
diff --git a/arch/x86/crypto/aesni-intel_glue.c b/arch/x86/crypto/aesni-intel_glue.c
index 947c6bf..54f60ab 100644
--- a/arch/x86/crypto/aesni-intel_glue.c
+++ b/arch/x86/crypto/aesni-intel_glue.c
@@ -1155,7 +1155,7 @@ static int __driver_rfc4106_decrypt(struct aead_request *req)
 		src = kmalloc(req->cryptlen + req->assoclen, GFP_ATOMIC);
 		if (!src)
 			return -ENOMEM;
-		assoc = (src + req->cryptlen + auth_tag_len);
+		assoc = (src + req->cryptlen);
 		scatterwalk_map_and_copy(src, req->src, 0, req->cryptlen, 0);
 		scatterwalk_map_and_copy(assoc, req->assoc, 0,
 			req->assoclen, 0);
@@ -1180,7 +1180,7 @@ static int __driver_rfc4106_decrypt(struct aead_request *req)
 		scatterwalk_done(&src_sg_walk, 0, 0);
 		scatterwalk_done(&assoc_sg_walk, 0, 0);
 	} else {
-		scatterwalk_map_and_copy(dst, req->dst, 0, req->cryptlen, 1);
+		scatterwalk_map_and_copy(dst, req->dst, 0, tempCipherLen, 1);
 		kfree(src);
 	}
 	return retval;
diff --git a/arch/x86/crypto/crc32c-pcl-intel-asm_64.S b/arch/x86/crypto/crc32c-pcl-intel-asm_64.S
index 26d49eb..225be06 100644
--- a/arch/x86/crypto/crc32c-pcl-intel-asm_64.S
+++ b/arch/x86/crypto/crc32c-pcl-intel-asm_64.S
@@ -178,7 +178,7 @@ continue_block:
 	## 2a) PROCESS FULL BLOCKS:
 	################################################################
 full_block:
-	movq    $128,%rax
+	movl    $128,%eax
 	lea     128*8*2(block_0), block_1
 	lea     128*8*3(block_0), block_2
 	add     $128*8*1, block_0
diff --git a/arch/x86/crypto/twofish-x86_64-asm_64.S b/arch/x86/crypto/twofish-x86_64-asm_64.S
index a039d21..a350c99 100644
--- a/arch/x86/crypto/twofish-x86_64-asm_64.S
+++ b/arch/x86/crypto/twofish-x86_64-asm_64.S
@@ -264,7 +264,7 @@ ENTRY(twofish_enc_blk)
 	movq	R1,	8(%rsi)
 
 	popq	R1
-	movq	$1,%rax
+	movl	$1,%eax
 	ret
 ENDPROC(twofish_enc_blk)
 
@@ -316,6 +316,6 @@ ENTRY(twofish_dec_blk)
 	movq	R1,	8(%rsi)
 
 	popq	R1
-	movq	$1,%rax
+	movl	$1,%eax
 	ret
 ENDPROC(twofish_dec_blk)
diff --git a/arch/x86/ia32/Makefile b/arch/x86/ia32/Makefile
index e785b42..bb635c6 100644
--- a/arch/x86/ia32/Makefile
+++ b/arch/x86/ia32/Makefile
@@ -3,7 +3,6 @@
 #
 
 obj-$(CONFIG_IA32_EMULATION) := ia32entry.o sys_ia32.o ia32_signal.o
-obj-$(CONFIG_IA32_EMULATION) += nosyscall.o syscall_ia32.o
 
 obj-$(CONFIG_IA32_AOUT) += ia32_aout.o
 
diff --git a/arch/x86/ia32/ia32_signal.c b/arch/x86/ia32/ia32_signal.c
index d0165c9..c81d35e6 100644
--- a/arch/x86/ia32/ia32_signal.c
+++ b/arch/x86/ia32/ia32_signal.c
@@ -161,8 +161,7 @@ int copy_siginfo_from_user32(siginfo_t *to, compat_siginfo_t __user *from)
 }
 
 static int ia32_restore_sigcontext(struct pt_regs *regs,
-				   struct sigcontext_ia32 __user *sc,
-				   unsigned int *pax)
+				   struct sigcontext_ia32 __user *sc)
 {
 	unsigned int tmpflags, err = 0;
 	void __user *buf;
@@ -184,7 +183,7 @@ static int ia32_restore_sigcontext(struct pt_regs *regs,
 		RELOAD_SEG(es);
 
 		COPY(di); COPY(si); COPY(bp); COPY(sp); COPY(bx);
-		COPY(dx); COPY(cx); COPY(ip);
+		COPY(dx); COPY(cx); COPY(ip); COPY(ax);
 		/* Don't touch extended registers */
 
 		COPY_SEG_CPL3(cs);
@@ -197,12 +196,12 @@ static int ia32_restore_sigcontext(struct pt_regs *regs,
 
 		get_user_ex(tmp, &sc->fpstate);
 		buf = compat_ptr(tmp);
-
-		get_user_ex(*pax, &sc->ax);
 	} get_user_catch(err);
 
 	err |= restore_xstate_sig(buf, 1);
 
+	force_iret();
+
 	return err;
 }
 
@@ -211,7 +210,6 @@ asmlinkage long sys32_sigreturn(void)
 	struct pt_regs *regs = current_pt_regs();
 	struct sigframe_ia32 __user *frame = (struct sigframe_ia32 __user *)(regs->sp-8);
 	sigset_t set;
-	unsigned int ax;
 
 	if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
 		goto badframe;
@@ -224,9 +222,9 @@ asmlinkage long sys32_sigreturn(void)
 
 	set_current_blocked(&set);
 
-	if (ia32_restore_sigcontext(regs, &frame->sc, &ax))
+	if (ia32_restore_sigcontext(regs, &frame->sc))
 		goto badframe;
-	return ax;
+	return regs->ax;
 
 badframe:
 	signal_fault(regs, frame, "32bit sigreturn");
@@ -238,7 +236,6 @@ asmlinkage long sys32_rt_sigreturn(void)
 	struct pt_regs *regs = current_pt_regs();
 	struct rt_sigframe_ia32 __user *frame;
 	sigset_t set;
-	unsigned int ax;
 
 	frame = (struct rt_sigframe_ia32 __user *)(regs->sp - 4);
 
@@ -249,13 +246,13 @@ asmlinkage long sys32_rt_sigreturn(void)
 
 	set_current_blocked(&set);
 
-	if (ia32_restore_sigcontext(regs, &frame->uc.uc_mcontext, &ax))
+	if (ia32_restore_sigcontext(regs, &frame->uc.uc_mcontext))
 		goto badframe;
 
 	if (compat_restore_altstack(&frame->uc.uc_stack))
 		goto badframe;
 
-	return ax;
+	return regs->ax;
 
 badframe:
 	signal_fault(regs, frame, "32bit rt sigreturn");
diff --git a/arch/x86/ia32/ia32entry.S b/arch/x86/ia32/ia32entry.S
index 156ebca..a821b1c 100644
--- a/arch/x86/ia32/ia32entry.S
+++ b/arch/x86/ia32/ia32entry.S
@@ -30,24 +30,13 @@
 
 	.section .entry.text, "ax"
 
-	.macro IA32_ARG_FIXUP noebp=0
-	movl	%edi,%r8d
-	.if \noebp
-	.else
-	movl	%ebp,%r9d
-	.endif
-	xchg	%ecx,%esi
-	movl	%ebx,%edi
-	movl	%edx,%edx	/* zero extension */
-	.endm 
-
-	/* clobbers %eax */	
-	.macro  CLEAR_RREGS offset=0, _r9=rax
+	/* clobbers %rax */
+	.macro  CLEAR_RREGS _r9=rax
 	xorl 	%eax,%eax
-	movq	%rax,\offset+R11(%rsp)
-	movq	%rax,\offset+R10(%rsp)
-	movq	%\_r9,\offset+R9(%rsp)
-	movq	%rax,\offset+R8(%rsp)
+	movq	%rax,R11(%rsp)
+	movq	%rax,R10(%rsp)
+	movq	%\_r9,R9(%rsp)
+	movq	%rax,R8(%rsp)
 	.endm
 
 	/*
@@ -60,14 +49,14 @@
 	 * If it's -1 to make us punt the syscall, then (u32)-1 is still
 	 * an appropriately invalid value.
 	 */
-	.macro LOAD_ARGS32 offset, _r9=0
+	.macro LOAD_ARGS32 _r9=0
 	.if \_r9
-	movl \offset+16(%rsp),%r9d
+	movl R9(%rsp),%r9d
 	.endif
-	movl \offset+40(%rsp),%ecx
-	movl \offset+48(%rsp),%edx
-	movl \offset+56(%rsp),%esi
-	movl \offset+64(%rsp),%edi
+	movl RCX(%rsp),%ecx
+	movl RDX(%rsp),%edx
+	movl RSI(%rsp),%esi
+	movl RDI(%rsp),%edi
 	movl %eax,%eax			/* zero extension */
 	.endm
 	
@@ -99,54 +88,69 @@ ENDPROC(native_irq_enable_sysexit)
 /*
  * 32bit SYSENTER instruction entry.
  *
+ * SYSENTER loads ss, rsp, cs, and rip from previously programmed MSRs.
+ * IF and VM in rflags are cleared (IOW: interrupts are off).
+ * SYSENTER does not save anything on the stack,
+ * and does not save old rip (!!!) and rflags.
+ *
  * Arguments:
- * %eax	System call number.
- * %ebx Arg1
- * %ecx Arg2
- * %edx Arg3
- * %esi Arg4
- * %edi Arg5
- * %ebp user stack
- * 0(%ebp) Arg6	
- * 	
- * Interrupts off.
- *	
+ * eax  system call number
+ * ebx  arg1
+ * ecx  arg2
+ * edx  arg3
+ * esi  arg4
+ * edi  arg5
+ * ebp  user stack
+ * 0(%ebp) arg6
+ *
  * This is purely a fast path. For anything complicated we use the int 0x80
- * path below.	Set up a complete hardware stack frame to share code
+ * path below. We set up a complete hardware stack frame to share code
  * with the int 0x80 path.
- */ 	
+ */
 ENTRY(ia32_sysenter_target)
 	CFI_STARTPROC32	simple
 	CFI_SIGNAL_FRAME
 	CFI_DEF_CFA	rsp,0
 	CFI_REGISTER	rsp,rbp
-	SWAPGS_UNSAFE_STACK
-	movq	PER_CPU_VAR(kernel_stack), %rsp
-	addq	$(KERNEL_STACK_OFFSET),%rsp
+
 	/*
-	 * No need to follow this irqs on/off section: the syscall
-	 * disabled irqs, here we enable it straight after entry:
+	 * Interrupts are off on entry.
+	 * We do not frame this tiny irq-off block with TRACE_IRQS_OFF/ON,
+	 * it is too small to ever cause noticeable irq latency.
 	 */
+	SWAPGS_UNSAFE_STACK
+	movq	PER_CPU_VAR(cpu_tss + TSS_sp0), %rsp
 	ENABLE_INTERRUPTS(CLBR_NONE)
- 	movl	%ebp,%ebp		/* zero extension */
-	pushq_cfi $__USER32_DS
-	/*CFI_REL_OFFSET ss,0*/
-	pushq_cfi %rbp
-	CFI_REL_OFFSET rsp,0
-	pushfq_cfi
-	/*CFI_REL_OFFSET rflags,0*/
-	movl	TI_sysenter_return+THREAD_INFO(%rsp,3*8-KERNEL_STACK_OFFSET),%r10d
-	CFI_REGISTER rip,r10
-	pushq_cfi $__USER32_CS
-	/*CFI_REL_OFFSET cs,0*/
+
+	/* Zero-extending 32-bit regs, do not remove */
+	movl	%ebp, %ebp
 	movl	%eax, %eax
-	pushq_cfi %r10
-	CFI_REL_OFFSET rip,0
-	pushq_cfi %rax
+
+	movl	ASM_THREAD_INFO(TI_sysenter_return, %rsp, 0), %r10d
+	CFI_REGISTER rip,r10
+
+	/* Construct struct pt_regs on stack */
+	pushq_cfi	$__USER32_DS		/* pt_regs->ss */
+	pushq_cfi	%rbp			/* pt_regs->sp */
+	CFI_REL_OFFSET	rsp,0
+	pushfq_cfi				/* pt_regs->flags */
+	pushq_cfi	$__USER32_CS		/* pt_regs->cs */
+	pushq_cfi	%r10 /* pt_regs->ip = thread_info->sysenter_return */
+	CFI_REL_OFFSET	rip,0
+	pushq_cfi_reg	rax			/* pt_regs->orig_ax */
+	pushq_cfi_reg	rdi			/* pt_regs->di */
+	pushq_cfi_reg	rsi			/* pt_regs->si */
+	pushq_cfi_reg	rdx			/* pt_regs->dx */
+	pushq_cfi_reg	rcx			/* pt_regs->cx */
+	pushq_cfi_reg	rax			/* pt_regs->ax */
 	cld
-	SAVE_ARGS 0,1,0
- 	/* no need to do an access_ok check here because rbp has been
- 	   32bit zero extended */ 
+	sub	$(10*8),%rsp /* pt_regs->r8-11,bp,bx,r12-15 not saved */
+	CFI_ADJUST_CFA_OFFSET 10*8
+
+	/*
+	 * no need to do an access_ok check here because rbp has been
+	 * 32bit zero extended
+	 */
 	ASM_STAC
 1:	movl	(%rbp),%ebp
 	_ASM_EXTABLE(1b,ia32_badarg)
@@ -157,42 +161,80 @@ ENTRY(ia32_sysenter_target)
 	 * ourselves.  To save a few cycles, we can check whether
 	 * NT was set instead of doing an unconditional popfq.
 	 */
-	testl $X86_EFLAGS_NT,EFLAGS-ARGOFFSET(%rsp)
+	testl $X86_EFLAGS_NT,EFLAGS(%rsp)
 	jnz sysenter_fix_flags
 sysenter_flags_fixed:
 
-	orl     $TS_COMPAT,TI_status+THREAD_INFO(%rsp,RIP-ARGOFFSET)
-	testl   $_TIF_WORK_SYSCALL_ENTRY,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
+	orl     $TS_COMPAT, ASM_THREAD_INFO(TI_status, %rsp, SIZEOF_PTREGS)
+	testl   $_TIF_WORK_SYSCALL_ENTRY, ASM_THREAD_INFO(TI_flags, %rsp, SIZEOF_PTREGS)
 	CFI_REMEMBER_STATE
 	jnz  sysenter_tracesys
 	cmpq	$(IA32_NR_syscalls-1),%rax
 	ja	ia32_badsys
 sysenter_do_call:
-	IA32_ARG_FIXUP
+	/* 32bit syscall -> 64bit C ABI argument conversion */
+	movl	%edi,%r8d	/* arg5 */
+	movl	%ebp,%r9d	/* arg6 */
+	xchg	%ecx,%esi	/* rsi:arg2, rcx:arg4 */
+	movl	%ebx,%edi	/* arg1 */
+	movl	%edx,%edx	/* arg3 (zero extension) */
 sysenter_dispatch:
 	call	*ia32_sys_call_table(,%rax,8)
-	movq	%rax,RAX-ARGOFFSET(%rsp)
+	movq	%rax,RAX(%rsp)
 	DISABLE_INTERRUPTS(CLBR_NONE)
 	TRACE_IRQS_OFF
-	testl	$_TIF_ALLWORK_MASK,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
+	testl	$_TIF_ALLWORK_MASK, ASM_THREAD_INFO(TI_flags, %rsp, SIZEOF_PTREGS)
 	jnz	sysexit_audit
 sysexit_from_sys_call:
-	andl    $~TS_COMPAT,TI_status+THREAD_INFO(%rsp,RIP-ARGOFFSET)
-	/* clear IF, that popfq doesn't enable interrupts early */
-	andl	$~0x200,EFLAGS-ARGOFFSET(%rsp)
-	movl	RIP-ARGOFFSET(%rsp),%edx		/* User %eip */
-	CFI_REGISTER rip,rdx
-	RESTORE_ARGS 0,24,0,0,0,0
+	/*
+	 * NB: SYSEXIT is not obviously safe for 64-bit kernels -- an
+	 * NMI between STI and SYSEXIT has poorly specified behavior,
+	 * and and NMI followed by an IRQ with usergs is fatal.  So
+	 * we just pretend we're using SYSEXIT but we really use
+	 * SYSRETL instead.
+	 *
+	 * This code path is still called 'sysexit' because it pairs
+	 * with 'sysenter' and it uses the SYSENTER calling convention.
+	 */
+	andl    $~TS_COMPAT,ASM_THREAD_INFO(TI_status, %rsp, SIZEOF_PTREGS)
+	movl	RIP(%rsp),%ecx		/* User %eip */
+	CFI_REGISTER rip,rcx
+	RESTORE_RSI_RDI
+	xorl	%edx,%edx		/* avoid info leaks */
 	xorq	%r8,%r8
 	xorq	%r9,%r9
 	xorq	%r10,%r10
-	xorq	%r11,%r11
-	popfq_cfi
+	movl	EFLAGS(%rsp),%r11d	/* User eflags */
 	/*CFI_RESTORE rflags*/
-	popq_cfi %rcx				/* User %esp */
-	CFI_REGISTER rsp,rcx
 	TRACE_IRQS_ON
-	ENABLE_INTERRUPTS_SYSEXIT32
+
+	/*
+	 * SYSRETL works even on Intel CPUs.  Use it in preference to SYSEXIT,
+	 * since it avoids a dicey window with interrupts enabled.
+	 */
+	movl	RSP(%rsp),%esp
+
+	/*
+	 * USERGS_SYSRET32 does:
+	 *  gsbase = user's gs base
+	 *  eip = ecx
+	 *  rflags = r11
+	 *  cs = __USER32_CS
+	 *  ss = __USER_DS
+	 *
+	 * The prologue set RIP(%rsp) to VDSO32_SYSENTER_RETURN, which does:
+	 *
+	 *  pop %ebp
+	 *  pop %edx
+	 *  pop %ecx
+	 *
+	 * Therefore, we invoke SYSRETL with EDX and R8-R10 zeroed to
+	 * avoid info leaks.  R11 ends up with VDSO32_SYSENTER_RETURN's
+	 * address (already known to user code), and R12-R15 are
+	 * callee-saved and therefore don't contain any interesting
+	 * kernel data.
+	 */
+	USERGS_SYSRET32
 
 	CFI_RESTORE_STATE
 
@@ -205,18 +247,18 @@ sysexit_from_sys_call:
 	movl %ebx,%esi			/* 2nd arg: 1st syscall arg */
 	movl %eax,%edi			/* 1st arg: syscall number */
 	call __audit_syscall_entry
-	movl RAX-ARGOFFSET(%rsp),%eax	/* reload syscall number */
+	movl RAX(%rsp),%eax	/* reload syscall number */
 	cmpq $(IA32_NR_syscalls-1),%rax
 	ja ia32_badsys
 	movl %ebx,%edi			/* reload 1st syscall arg */
-	movl RCX-ARGOFFSET(%rsp),%esi	/* reload 2nd syscall arg */
-	movl RDX-ARGOFFSET(%rsp),%edx	/* reload 3rd syscall arg */
-	movl RSI-ARGOFFSET(%rsp),%ecx	/* reload 4th syscall arg */
-	movl RDI-ARGOFFSET(%rsp),%r8d	/* reload 5th syscall arg */
+	movl RCX(%rsp),%esi	/* reload 2nd syscall arg */
+	movl RDX(%rsp),%edx	/* reload 3rd syscall arg */
+	movl RSI(%rsp),%ecx	/* reload 4th syscall arg */
+	movl RDI(%rsp),%r8d	/* reload 5th syscall arg */
 	.endm
 
 	.macro auditsys_exit exit
-	testl $(_TIF_ALLWORK_MASK & ~_TIF_SYSCALL_AUDIT),TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
+	testl $(_TIF_ALLWORK_MASK & ~_TIF_SYSCALL_AUDIT), ASM_THREAD_INFO(TI_flags, %rsp, SIZEOF_PTREGS)
 	jnz ia32_ret_from_sys_call
 	TRACE_IRQS_ON
 	ENABLE_INTERRUPTS(CLBR_NONE)
@@ -227,13 +269,13 @@ sysexit_from_sys_call:
 1:	setbe %al		/* 1 if error, 0 if not */
 	movzbl %al,%edi		/* zero-extend that into %edi */
 	call __audit_syscall_exit
-	movq RAX-ARGOFFSET(%rsp),%rax	/* reload syscall return value */
+	movq RAX(%rsp),%rax	/* reload syscall return value */
 	movl $(_TIF_ALLWORK_MASK & ~_TIF_SYSCALL_AUDIT),%edi
 	DISABLE_INTERRUPTS(CLBR_NONE)
 	TRACE_IRQS_OFF
-	testl %edi,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
+	testl %edi, ASM_THREAD_INFO(TI_flags, %rsp, SIZEOF_PTREGS)
 	jz \exit
-	CLEAR_RREGS -ARGOFFSET
+	CLEAR_RREGS
 	jmp int_with_check
 	.endm
 
@@ -253,16 +295,16 @@ sysenter_fix_flags:
 
 sysenter_tracesys:
 #ifdef CONFIG_AUDITSYSCALL
-	testl	$(_TIF_WORK_SYSCALL_ENTRY & ~_TIF_SYSCALL_AUDIT),TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
+	testl	$(_TIF_WORK_SYSCALL_ENTRY & ~_TIF_SYSCALL_AUDIT), ASM_THREAD_INFO(TI_flags, %rsp, SIZEOF_PTREGS)
 	jz	sysenter_auditsys
 #endif
-	SAVE_REST
+	SAVE_EXTRA_REGS
 	CLEAR_RREGS
 	movq	$-ENOSYS,RAX(%rsp)/* ptrace can change this for a bad syscall */
 	movq	%rsp,%rdi        /* &pt_regs -> arg1 */
 	call	syscall_trace_enter
-	LOAD_ARGS32 ARGOFFSET  /* reload args from stack in case ptrace changed it */
-	RESTORE_REST
+	LOAD_ARGS32  /* reload args from stack in case ptrace changed it */
+	RESTORE_EXTRA_REGS
 	cmpq	$(IA32_NR_syscalls-1),%rax
 	ja	int_ret_from_sys_call /* sysenter_tracesys has set RAX(%rsp) */
 	jmp	sysenter_do_call
@@ -272,94 +314,128 @@ ENDPROC(ia32_sysenter_target)
 /*
  * 32bit SYSCALL instruction entry.
  *
+ * 32bit SYSCALL saves rip to rcx, clears rflags.RF, then saves rflags to r11,
+ * then loads new ss, cs, and rip from previously programmed MSRs.
+ * rflags gets masked by a value from another MSR (so CLD and CLAC
+ * are not needed). SYSCALL does not save anything on the stack
+ * and does not change rsp.
+ *
+ * Note: rflags saving+masking-with-MSR happens only in Long mode
+ * (in legacy 32bit mode, IF, RF and VM bits are cleared and that's it).
+ * Don't get confused: rflags saving+masking depends on Long Mode Active bit
+ * (EFER.LMA=1), NOT on bitness of userspace where SYSCALL executes
+ * or target CS descriptor's L bit (SYSCALL does not read segment descriptors).
+ *
  * Arguments:
- * %eax	System call number.
- * %ebx Arg1
- * %ecx return EIP 
- * %edx Arg3
- * %esi Arg4
- * %edi Arg5
- * %ebp Arg2    [note: not saved in the stack frame, should not be touched]
- * %esp user stack 
- * 0(%esp) Arg6
- * 	
- * Interrupts off.
- *	
+ * eax  system call number
+ * ecx  return address
+ * ebx  arg1
+ * ebp  arg2	(note: not saved in the stack frame, should not be touched)
+ * edx  arg3
+ * esi  arg4
+ * edi  arg5
+ * esp  user stack
+ * 0(%esp) arg6
+ *
  * This is purely a fast path. For anything complicated we use the int 0x80
- * path below.	Set up a complete hardware stack frame to share code
- * with the int 0x80 path.	
- */ 	
+ * path below. We set up a complete hardware stack frame to share code
+ * with the int 0x80 path.
+ */
 ENTRY(ia32_cstar_target)
 	CFI_STARTPROC32	simple
 	CFI_SIGNAL_FRAME
-	CFI_DEF_CFA	rsp,KERNEL_STACK_OFFSET
+	CFI_DEF_CFA	rsp,0
 	CFI_REGISTER	rip,rcx
 	/*CFI_REGISTER	rflags,r11*/
+
+	/*
+	 * Interrupts are off on entry.
+	 * We do not frame this tiny irq-off block with TRACE_IRQS_OFF/ON,
+	 * it is too small to ever cause noticeable irq latency.
+	 */
 	SWAPGS_UNSAFE_STACK
 	movl	%esp,%r8d
 	CFI_REGISTER	rsp,r8
 	movq	PER_CPU_VAR(kernel_stack),%rsp
-	/*
-	 * No need to follow this irqs on/off section: the syscall
-	 * disabled irqs and here we enable it straight after entry:
-	 */
 	ENABLE_INTERRUPTS(CLBR_NONE)
-	SAVE_ARGS 8,0,0
-	movl 	%eax,%eax	/* zero extension */
-	movq	%rax,ORIG_RAX-ARGOFFSET(%rsp)
-	movq	%rcx,RIP-ARGOFFSET(%rsp)
-	CFI_REL_OFFSET rip,RIP-ARGOFFSET
-	movq	%rbp,RCX-ARGOFFSET(%rsp) /* this lies slightly to ptrace */
+
+	/* Zero-extending 32-bit regs, do not remove */
+	movl	%eax,%eax
+
+	/* Construct struct pt_regs on stack */
+	pushq_cfi	$__USER32_DS		/* pt_regs->ss */
+	pushq_cfi	%r8			/* pt_regs->sp */
+	CFI_REL_OFFSET rsp,0
+	pushq_cfi	%r11			/* pt_regs->flags */
+	pushq_cfi	$__USER32_CS		/* pt_regs->cs */
+	pushq_cfi	%rcx			/* pt_regs->ip */
+	CFI_REL_OFFSET rip,0
+	pushq_cfi_reg	rax			/* pt_regs->orig_ax */
+	pushq_cfi_reg	rdi			/* pt_regs->di */
+	pushq_cfi_reg	rsi			/* pt_regs->si */
+	pushq_cfi_reg	rdx			/* pt_regs->dx */
+	pushq_cfi_reg	rbp			/* pt_regs->cx */
 	movl	%ebp,%ecx
-	movq	$__USER32_CS,CS-ARGOFFSET(%rsp)
-	movq	$__USER32_DS,SS-ARGOFFSET(%rsp)
-	movq	%r11,EFLAGS-ARGOFFSET(%rsp)
-	/*CFI_REL_OFFSET rflags,EFLAGS-ARGOFFSET*/
-	movq	%r8,RSP-ARGOFFSET(%rsp)	
-	CFI_REL_OFFSET rsp,RSP-ARGOFFSET
-	/* no need to do an access_ok check here because r8 has been
-	   32bit zero extended */ 
-	/* hardware stack frame is complete now */	
+	pushq_cfi_reg	rax			/* pt_regs->ax */
+	sub	$(10*8),%rsp /* pt_regs->r8-11,bp,bx,r12-15 not saved */
+	CFI_ADJUST_CFA_OFFSET 10*8
+
+	/*
+	 * no need to do an access_ok check here because r8 has been
+	 * 32bit zero extended
+	 */
 	ASM_STAC
 1:	movl	(%r8),%r9d
 	_ASM_EXTABLE(1b,ia32_badarg)
 	ASM_CLAC
-	orl     $TS_COMPAT,TI_status+THREAD_INFO(%rsp,RIP-ARGOFFSET)
-	testl   $_TIF_WORK_SYSCALL_ENTRY,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
+	orl     $TS_COMPAT, ASM_THREAD_INFO(TI_status, %rsp, SIZEOF_PTREGS)
+	testl   $_TIF_WORK_SYSCALL_ENTRY, ASM_THREAD_INFO(TI_flags, %rsp, SIZEOF_PTREGS)
 	CFI_REMEMBER_STATE
 	jnz   cstar_tracesys
 	cmpq $IA32_NR_syscalls-1,%rax
 	ja  ia32_badsys
 cstar_do_call:
-	IA32_ARG_FIXUP 1
+	/* 32bit syscall -> 64bit C ABI argument conversion */
+	movl	%edi,%r8d	/* arg5 */
+	/* r9 already loaded */	/* arg6 */
+	xchg	%ecx,%esi	/* rsi:arg2, rcx:arg4 */
+	movl	%ebx,%edi	/* arg1 */
+	movl	%edx,%edx	/* arg3 (zero extension) */
 cstar_dispatch:
 	call *ia32_sys_call_table(,%rax,8)
-	movq %rax,RAX-ARGOFFSET(%rsp)
+	movq %rax,RAX(%rsp)
 	DISABLE_INTERRUPTS(CLBR_NONE)
 	TRACE_IRQS_OFF
-	testl $_TIF_ALLWORK_MASK,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
+	testl $_TIF_ALLWORK_MASK, ASM_THREAD_INFO(TI_flags, %rsp, SIZEOF_PTREGS)
 	jnz sysretl_audit
 sysretl_from_sys_call:
-	andl $~TS_COMPAT,TI_status+THREAD_INFO(%rsp,RIP-ARGOFFSET)
-	RESTORE_ARGS 0,-ARG_SKIP,0,0,0
-	movl RIP-ARGOFFSET(%rsp),%ecx
+	andl $~TS_COMPAT, ASM_THREAD_INFO(TI_status, %rsp, SIZEOF_PTREGS)
+	RESTORE_RSI_RDI_RDX
+	movl RIP(%rsp),%ecx
 	CFI_REGISTER rip,rcx
-	movl EFLAGS-ARGOFFSET(%rsp),%r11d	
+	movl EFLAGS(%rsp),%r11d
 	/*CFI_REGISTER rflags,r11*/
 	xorq	%r10,%r10
 	xorq	%r9,%r9
 	xorq	%r8,%r8
 	TRACE_IRQS_ON
-	movl RSP-ARGOFFSET(%rsp),%esp
+	movl RSP(%rsp),%esp
 	CFI_RESTORE rsp
+	/*
+	 * 64bit->32bit SYSRET restores eip from ecx,
+	 * eflags from r11 (but RF and VM bits are forced to 0),
+	 * cs and ss are loaded from MSRs.
+	 * (Note: 32bit->32bit SYSRET is different: since r11
+	 * does not exist, it merely sets eflags.IF=1).
+	 */
 	USERGS_SYSRET32
-	
+
 #ifdef CONFIG_AUDITSYSCALL
 cstar_auditsys:
 	CFI_RESTORE_STATE
-	movl %r9d,R9-ARGOFFSET(%rsp)	/* register to be clobbered by call */
+	movl %r9d,R9(%rsp)	/* register to be clobbered by call */
 	auditsys_entry_common
-	movl R9-ARGOFFSET(%rsp),%r9d	/* reload 6th syscall arg */
+	movl R9(%rsp),%r9d	/* reload 6th syscall arg */
 	jmp cstar_dispatch
 
 sysretl_audit:
@@ -368,17 +444,17 @@ sysretl_audit:
 
 cstar_tracesys:
 #ifdef CONFIG_AUDITSYSCALL
-	testl $(_TIF_WORK_SYSCALL_ENTRY & ~_TIF_SYSCALL_AUDIT),TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
+	testl $(_TIF_WORK_SYSCALL_ENTRY & ~_TIF_SYSCALL_AUDIT), ASM_THREAD_INFO(TI_flags, %rsp, SIZEOF_PTREGS)
 	jz cstar_auditsys
 #endif
 	xchgl %r9d,%ebp
-	SAVE_REST
-	CLEAR_RREGS 0, r9
+	SAVE_EXTRA_REGS
+	CLEAR_RREGS r9
 	movq $-ENOSYS,RAX(%rsp)	/* ptrace can change this for a bad syscall */
 	movq %rsp,%rdi        /* &pt_regs -> arg1 */
 	call syscall_trace_enter
-	LOAD_ARGS32 ARGOFFSET, 1  /* reload args from stack in case ptrace changed it */
-	RESTORE_REST
+	LOAD_ARGS32 1	/* reload args from stack in case ptrace changed it */
+	RESTORE_EXTRA_REGS
 	xchgl %ebp,%r9d
 	cmpq $(IA32_NR_syscalls-1),%rax
 	ja int_ret_from_sys_call /* cstar_tracesys has set RAX(%rsp) */
@@ -391,78 +467,94 @@ ia32_badarg:
 	jmp ia32_sysret
 	CFI_ENDPROC
 
-/* 
- * Emulated IA32 system calls via int 0x80. 
+/*
+ * Emulated IA32 system calls via int 0x80.
  *
- * Arguments:	 
- * %eax	System call number.
- * %ebx Arg1
- * %ecx Arg2
- * %edx Arg3
- * %esi Arg4
- * %edi Arg5
- * %ebp Arg6    [note: not saved in the stack frame, should not be touched]
+ * Arguments:
+ * eax  system call number
+ * ebx  arg1
+ * ecx  arg2
+ * edx  arg3
+ * esi  arg4
+ * edi  arg5
+ * ebp  arg6	(note: not saved in the stack frame, should not be touched)
  *
  * Notes:
- * Uses the same stack frame as the x86-64 version.	
- * All registers except %eax must be saved (but ptrace may violate that)
+ * Uses the same stack frame as the x86-64 version.
+ * All registers except eax must be saved (but ptrace may violate that).
  * Arguments are zero extended. For system calls that want sign extension and
  * take long arguments a wrapper is needed. Most calls can just be called
  * directly.
- * Assumes it is only called from user space and entered with interrupts off.	
- */ 				
+ * Assumes it is only called from user space and entered with interrupts off.
+ */
 
 ENTRY(ia32_syscall)
 	CFI_STARTPROC32	simple
 	CFI_SIGNAL_FRAME
-	CFI_DEF_CFA	rsp,SS+8-RIP
-	/*CFI_REL_OFFSET	ss,SS-RIP*/
-	CFI_REL_OFFSET	rsp,RSP-RIP
-	/*CFI_REL_OFFSET	rflags,EFLAGS-RIP*/
-	/*CFI_REL_OFFSET	cs,CS-RIP*/
-	CFI_REL_OFFSET	rip,RIP-RIP
-	PARAVIRT_ADJUST_EXCEPTION_FRAME
-	SWAPGS
+	CFI_DEF_CFA	rsp,5*8
+	/*CFI_REL_OFFSET	ss,4*8 */
+	CFI_REL_OFFSET	rsp,3*8
+	/*CFI_REL_OFFSET	rflags,2*8 */
+	/*CFI_REL_OFFSET	cs,1*8 */
+	CFI_REL_OFFSET	rip,0*8
+
 	/*
-	 * No need to follow this irqs on/off section: the syscall
-	 * disabled irqs and here we enable it straight after entry:
+	 * Interrupts are off on entry.
+	 * We do not frame this tiny irq-off block with TRACE_IRQS_OFF/ON,
+	 * it is too small to ever cause noticeable irq latency.
 	 */
+	PARAVIRT_ADJUST_EXCEPTION_FRAME
+	SWAPGS
 	ENABLE_INTERRUPTS(CLBR_NONE)
-	movl %eax,%eax
-	pushq_cfi %rax
+
+	/* Zero-extending 32-bit regs, do not remove */
+	movl	%eax,%eax
+
+	/* Construct struct pt_regs on stack (iret frame is already on stack) */
+	pushq_cfi_reg	rax			/* pt_regs->orig_ax */
+	pushq_cfi_reg	rdi			/* pt_regs->di */
+	pushq_cfi_reg	rsi			/* pt_regs->si */
+	pushq_cfi_reg	rdx			/* pt_regs->dx */
+	pushq_cfi_reg	rcx			/* pt_regs->cx */
+	pushq_cfi_reg	rax			/* pt_regs->ax */
 	cld
-	/* note the registers are not zero extended to the sf.
-	   this could be a problem. */
-	SAVE_ARGS 0,1,0
-	orl $TS_COMPAT,TI_status+THREAD_INFO(%rsp,RIP-ARGOFFSET)
-	testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
+	sub	$(10*8),%rsp /* pt_regs->r8-11,bp,bx,r12-15 not saved */
+	CFI_ADJUST_CFA_OFFSET 10*8
+
+	orl $TS_COMPAT, ASM_THREAD_INFO(TI_status, %rsp, SIZEOF_PTREGS)
+	testl $_TIF_WORK_SYSCALL_ENTRY, ASM_THREAD_INFO(TI_flags, %rsp, SIZEOF_PTREGS)
 	jnz ia32_tracesys
 	cmpq $(IA32_NR_syscalls-1),%rax
 	ja ia32_badsys
 ia32_do_call:
-	IA32_ARG_FIXUP
+	/* 32bit syscall -> 64bit C ABI argument conversion */
+	movl %edi,%r8d	/* arg5 */
+	movl %ebp,%r9d	/* arg6 */
+	xchg %ecx,%esi	/* rsi:arg2, rcx:arg4 */
+	movl %ebx,%edi	/* arg1 */
+	movl %edx,%edx	/* arg3 (zero extension) */
 	call *ia32_sys_call_table(,%rax,8) # xxx: rip relative
 ia32_sysret:
-	movq %rax,RAX-ARGOFFSET(%rsp)
+	movq %rax,RAX(%rsp)
 ia32_ret_from_sys_call:
-	CLEAR_RREGS -ARGOFFSET
-	jmp int_ret_from_sys_call 
+	CLEAR_RREGS
+	jmp int_ret_from_sys_call
 
-ia32_tracesys:			 
-	SAVE_REST
+ia32_tracesys:
+	SAVE_EXTRA_REGS
 	CLEAR_RREGS
 	movq $-ENOSYS,RAX(%rsp)	/* ptrace can change this for a bad syscall */
 	movq %rsp,%rdi        /* &pt_regs -> arg1 */
 	call syscall_trace_enter
-	LOAD_ARGS32 ARGOFFSET  /* reload args from stack in case ptrace changed it */
-	RESTORE_REST
+	LOAD_ARGS32	/* reload args from stack in case ptrace changed it */
+	RESTORE_EXTRA_REGS
 	cmpq $(IA32_NR_syscalls-1),%rax
 	ja  int_ret_from_sys_call	/* ia32_tracesys has set RAX(%rsp) */
 	jmp ia32_do_call
 END(ia32_syscall)
 
 ia32_badsys:
-	movq $0,ORIG_RAX-ARGOFFSET(%rsp)
+	movq $0,ORIG_RAX(%rsp)
 	movq $-ENOSYS,%rax
 	jmp ia32_sysret
 
@@ -479,8 +571,6 @@ GLOBAL(\label)
 
 	PTREGSCALL stub32_rt_sigreturn, sys32_rt_sigreturn
 	PTREGSCALL stub32_sigreturn, sys32_sigreturn
-	PTREGSCALL stub32_execve, compat_sys_execve
-	PTREGSCALL stub32_execveat, compat_sys_execveat
 	PTREGSCALL stub32_fork, sys_fork
 	PTREGSCALL stub32_vfork, sys_vfork
 
@@ -492,24 +582,23 @@ GLOBAL(stub32_clone)
 
 	ALIGN
 ia32_ptregs_common:
-	popq %r11
 	CFI_ENDPROC
 	CFI_STARTPROC32	simple
 	CFI_SIGNAL_FRAME
-	CFI_DEF_CFA	rsp,SS+8-ARGOFFSET
-	CFI_REL_OFFSET	rax,RAX-ARGOFFSET
-	CFI_REL_OFFSET	rcx,RCX-ARGOFFSET
-	CFI_REL_OFFSET	rdx,RDX-ARGOFFSET
-	CFI_REL_OFFSET	rsi,RSI-ARGOFFSET
-	CFI_REL_OFFSET	rdi,RDI-ARGOFFSET
-	CFI_REL_OFFSET	rip,RIP-ARGOFFSET
-/*	CFI_REL_OFFSET	cs,CS-ARGOFFSET*/
-/*	CFI_REL_OFFSET	rflags,EFLAGS-ARGOFFSET*/
-	CFI_REL_OFFSET	rsp,RSP-ARGOFFSET
-/*	CFI_REL_OFFSET	ss,SS-ARGOFFSET*/
-	SAVE_REST
+	CFI_DEF_CFA	rsp,SIZEOF_PTREGS
+	CFI_REL_OFFSET	rax,RAX
+	CFI_REL_OFFSET	rcx,RCX
+	CFI_REL_OFFSET	rdx,RDX
+	CFI_REL_OFFSET	rsi,RSI
+	CFI_REL_OFFSET	rdi,RDI
+	CFI_REL_OFFSET	rip,RIP
+/*	CFI_REL_OFFSET	cs,CS*/
+/*	CFI_REL_OFFSET	rflags,EFLAGS*/
+	CFI_REL_OFFSET	rsp,RSP
+/*	CFI_REL_OFFSET	ss,SS*/
+	SAVE_EXTRA_REGS 8
 	call *%rax
-	RESTORE_REST
-	jmp  ia32_sysret	/* misbalances the return cache */
+	RESTORE_EXTRA_REGS 8
+	ret
 	CFI_ENDPROC
 END(ia32_ptregs_common)
diff --git a/arch/x86/ia32/nosyscall.c b/arch/x86/ia32/nosyscall.c
deleted file mode 100644
index 51ecd5b..0000000
--- a/arch/x86/ia32/nosyscall.c
+++ /dev/null
@@ -1,7 +0,0 @@
-#include <linux/kernel.h>
-#include <linux/errno.h>
-
-long compat_ni_syscall(void)
-{
-	return -ENOSYS;
-}
diff --git a/arch/x86/ia32/sys_ia32.c b/arch/x86/ia32/sys_ia32.c
index 8e0ceec..719cd70 100644
--- a/arch/x86/ia32/sys_ia32.c
+++ b/arch/x86/ia32/sys_ia32.c
@@ -201,20 +201,6 @@ long sys32_fadvise64_64(int fd, __u32 offset_low, __u32 offset_high,
 				advice);
 }
 
-long sys32_vm86_warning(void)
-{
-	struct task_struct *me = current;
-	static char lastcomm[sizeof(me->comm)];
-
-	if (strncmp(lastcomm, me->comm, sizeof(lastcomm))) {
-		compat_printk(KERN_INFO
-			      "%s: vm86 mode not supported on 64 bit kernel\n",
-			      me->comm);
-		strncpy(lastcomm, me->comm, sizeof(lastcomm));
-	}
-	return -ENOSYS;
-}
-
 asmlinkage ssize_t sys32_readahead(int fd, unsigned off_lo, unsigned off_hi,
 				   size_t count)
 {
diff --git a/arch/x86/ia32/syscall_ia32.c b/arch/x86/ia32/syscall_ia32.c
deleted file mode 100644
index 4754ba0..0000000
--- a/arch/x86/ia32/syscall_ia32.c
+++ /dev/null
@@ -1,25 +0,0 @@
-/* System call table for ia32 emulation. */
-
-#include <linux/linkage.h>
-#include <linux/sys.h>
-#include <linux/cache.h>
-#include <asm/asm-offsets.h>
-
-#define __SYSCALL_I386(nr, sym, compat) extern asmlinkage void compat(void) ;
-#include <asm/syscalls_32.h>
-#undef __SYSCALL_I386
-
-#define __SYSCALL_I386(nr, sym, compat) [nr] = compat,
-
-typedef void (*sys_call_ptr_t)(void);
-
-extern void compat_ni_syscall(void);
-
-const sys_call_ptr_t ia32_sys_call_table[__NR_ia32_syscall_max+1] = {
-	/*
-	 * Smells like a compiler bug -- it doesn't work
-	 * when the & below is removed.
-	 */
-	[0 ... __NR_ia32_syscall_max] = &compat_ni_syscall,
-#include <asm/syscalls_32.h>
-};
diff --git a/arch/x86/include/asm/alternative-asm.h b/arch/x86/include/asm/alternative-asm.h
index 372231c..bdf02ee 100644
--- a/arch/x86/include/asm/alternative-asm.h
+++ b/arch/x86/include/asm/alternative-asm.h
@@ -18,12 +18,63 @@
 	.endm
 #endif
 
-.macro altinstruction_entry orig alt feature orig_len alt_len
+.macro altinstruction_entry orig alt feature orig_len alt_len pad_len
 	.long \orig - .
 	.long \alt - .
 	.word \feature
 	.byte \orig_len
 	.byte \alt_len
+	.byte \pad_len
+.endm
+
+.macro ALTERNATIVE oldinstr, newinstr, feature
+140:
+	\oldinstr
+141:
+	.skip -(((144f-143f)-(141b-140b)) > 0) * ((144f-143f)-(141b-140b)),0x90
+142:
+
+	.pushsection .altinstructions,"a"
+	altinstruction_entry 140b,143f,\feature,142b-140b,144f-143f,142b-141b
+	.popsection
+
+	.pushsection .altinstr_replacement,"ax"
+143:
+	\newinstr
+144:
+	.popsection
+.endm
+
+#define old_len			141b-140b
+#define new_len1		144f-143f
+#define new_len2		145f-144f
+
+/*
+ * max without conditionals. Idea adapted from:
+ * http://graphics.stanford.edu/~seander/bithacks.html#IntegerMinOrMax
+ */
+#define alt_max_short(a, b)	((a) ^ (((a) ^ (b)) & -(-((a) < (b)))))
+
+.macro ALTERNATIVE_2 oldinstr, newinstr1, feature1, newinstr2, feature2
+140:
+	\oldinstr
+141:
+	.skip -((alt_max_short(new_len1, new_len2) - (old_len)) > 0) * \
+		(alt_max_short(new_len1, new_len2) - (old_len)),0x90
+142:
+
+	.pushsection .altinstructions,"a"
+	altinstruction_entry 140b,143f,\feature1,142b-140b,144f-143f,142b-141b
+	altinstruction_entry 140b,144f,\feature2,142b-140b,145f-144f,142b-141b
+	.popsection
+
+	.pushsection .altinstr_replacement,"ax"
+143:
+	\newinstr1
+144:
+	\newinstr2
+145:
+	.popsection
 .endm
 
 #endif  /*  __ASSEMBLY__  */
diff --git a/arch/x86/include/asm/alternative.h b/arch/x86/include/asm/alternative.h
index 473bdbe..ba32af0 100644
--- a/arch/x86/include/asm/alternative.h
+++ b/arch/x86/include/asm/alternative.h
@@ -48,8 +48,9 @@ struct alt_instr {
 	s32 repl_offset;	/* offset to replacement instruction */
 	u16 cpuid;		/* cpuid bit set for replacement */
 	u8  instrlen;		/* length of original instruction */
-	u8  replacementlen;	/* length of new instruction, <= instrlen */
-};
+	u8  replacementlen;	/* length of new instruction */
+	u8  padlen;		/* length of build-time padding */
+} __packed;
 
 extern void alternative_instructions(void);
 extern void apply_alternatives(struct alt_instr *start, struct alt_instr *end);
@@ -76,50 +77,69 @@ static inline int alternatives_text_reserved(void *start, void *end)
 }
 #endif	/* CONFIG_SMP */
 
-#define OLDINSTR(oldinstr)	"661:\n\t" oldinstr "\n662:\n"
+#define b_replacement(num)	"664"#num
+#define e_replacement(num)	"665"#num
 
-#define b_replacement(number)	"663"#number
-#define e_replacement(number)	"664"#number
+#define alt_end_marker		"663"
+#define alt_slen		"662b-661b"
+#define alt_pad_len		alt_end_marker"b-662b"
+#define alt_total_slen		alt_end_marker"b-661b"
+#define alt_rlen(num)		e_replacement(num)"f-"b_replacement(num)"f"
 
-#define alt_slen "662b-661b"
-#define alt_rlen(number) e_replacement(number)"f-"b_replacement(number)"f"
+#define __OLDINSTR(oldinstr, num)					\
+	"661:\n\t" oldinstr "\n662:\n"					\
+	".skip -(((" alt_rlen(num) ")-(" alt_slen ")) > 0) * "		\
+		"((" alt_rlen(num) ")-(" alt_slen ")),0x90\n"
 
-#define ALTINSTR_ENTRY(feature, number)					      \
+#define OLDINSTR(oldinstr, num)						\
+	__OLDINSTR(oldinstr, num)					\
+	alt_end_marker ":\n"
+
+/*
+ * max without conditionals. Idea adapted from:
+ * http://graphics.stanford.edu/~seander/bithacks.html#IntegerMinOrMax
+ *
+ * The additional "-" is needed because gas works with s32s.
+ */
+#define alt_max_short(a, b)	"((" a ") ^ (((" a ") ^ (" b ")) & -(-((" a ") - (" b ")))))"
+
+/*
+ * Pad the second replacement alternative with additional NOPs if it is
+ * additionally longer than the first replacement alternative.
+ */
+#define OLDINSTR_2(oldinstr, num1, num2) \
+	"661:\n\t" oldinstr "\n662:\n"								\
+	".skip -((" alt_max_short(alt_rlen(num1), alt_rlen(num2)) " - (" alt_slen ")) > 0) * "	\
+		"(" alt_max_short(alt_rlen(num1), alt_rlen(num2)) " - (" alt_slen ")), 0x90\n"	\
+	alt_end_marker ":\n"
+
+#define ALTINSTR_ENTRY(feature, num)					      \
 	" .long 661b - .\n"				/* label           */ \
-	" .long " b_replacement(number)"f - .\n"	/* new instruction */ \
+	" .long " b_replacement(num)"f - .\n"		/* new instruction */ \
 	" .word " __stringify(feature) "\n"		/* feature bit     */ \
-	" .byte " alt_slen "\n"				/* source len      */ \
-	" .byte " alt_rlen(number) "\n"			/* replacement len */
-
-#define DISCARD_ENTRY(number)				/* rlen <= slen */    \
-	" .byte 0xff + (" alt_rlen(number) ") - (" alt_slen ")\n"
+	" .byte " alt_total_slen "\n"			/* source len      */ \
+	" .byte " alt_rlen(num) "\n"			/* replacement len */ \
+	" .byte " alt_pad_len "\n"			/* pad len */
 
-#define ALTINSTR_REPLACEMENT(newinstr, feature, number)	/* replacement */     \
-	b_replacement(number)":\n\t" newinstr "\n" e_replacement(number) ":\n\t"
+#define ALTINSTR_REPLACEMENT(newinstr, feature, num)	/* replacement */     \
+	b_replacement(num)":\n\t" newinstr "\n" e_replacement(num) ":\n\t"
 
 /* alternative assembly primitive: */
 #define ALTERNATIVE(oldinstr, newinstr, feature)			\
-	OLDINSTR(oldinstr)						\
+	OLDINSTR(oldinstr, 1)						\
 	".pushsection .altinstructions,\"a\"\n"				\
 	ALTINSTR_ENTRY(feature, 1)					\
 	".popsection\n"							\
-	".pushsection .discard,\"aw\",@progbits\n"			\
-	DISCARD_ENTRY(1)						\
-	".popsection\n"							\
 	".pushsection .altinstr_replacement, \"ax\"\n"			\
 	ALTINSTR_REPLACEMENT(newinstr, feature, 1)			\
 	".popsection"
 
 #define ALTERNATIVE_2(oldinstr, newinstr1, feature1, newinstr2, feature2)\
-	OLDINSTR(oldinstr)						\
+	OLDINSTR_2(oldinstr, 1, 2)					\
 	".pushsection .altinstructions,\"a\"\n"				\
 	ALTINSTR_ENTRY(feature1, 1)					\
 	ALTINSTR_ENTRY(feature2, 2)					\
 	".popsection\n"							\
-	".pushsection .discard,\"aw\",@progbits\n"			\
-	DISCARD_ENTRY(1)						\
-	DISCARD_ENTRY(2)						\
-	".popsection\n"							\
 	".pushsection .altinstr_replacement, \"ax\"\n"			\
 	ALTINSTR_REPLACEMENT(newinstr1, feature1, 1)			\
 	ALTINSTR_REPLACEMENT(newinstr2, feature2, 2)			\
@@ -146,6 +166,9 @@ static inline int alternatives_text_reserved(void *start, void *end)
 #define alternative(oldinstr, newinstr, feature)			\
 	asm volatile (ALTERNATIVE(oldinstr, newinstr, feature) : : : "memory")
 
+#define alternative_2(oldinstr, newinstr1, feature1, newinstr2, feature2) \
+	asm volatile(ALTERNATIVE_2(oldinstr, newinstr1, feature1, newinstr2, feature2) ::: "memory")
+
 /*
  * Alternative inline assembly with input.
  *
diff --git a/arch/x86/include/asm/apic.h b/arch/x86/include/asm/apic.h
index efc3b22..976b86a 100644
--- a/arch/x86/include/asm/apic.h
+++ b/arch/x86/include/asm/apic.h
@@ -91,7 +91,7 @@ static inline void native_apic_mem_write(u32 reg, u32 v)
 {
 	volatile u32 *addr = (volatile u32 *)(APIC_BASE + reg);
 
-	alternative_io("movl %0, %1", "xchgl %0, %1", X86_BUG_11AP,
+	alternative_io("movl %0, %P1", "xchgl %0, %P1", X86_BUG_11AP,
 		       ASM_OUTPUT2("=r" (v), "=m" (*addr)),
 		       ASM_OUTPUT2("0" (v), "m" (*addr)));
 }
@@ -204,7 +204,6 @@ extern void clear_local_APIC(void);
 extern void disconnect_bsp_APIC(int virt_wire_setup);
 extern void disable_local_APIC(void);
 extern void lapic_shutdown(void);
-extern int verify_local_APIC(void);
 extern void sync_Arb_IDs(void);
 extern void init_bsp_APIC(void);
 extern void setup_local_APIC(void);
diff --git a/arch/x86/include/asm/barrier.h b/arch/x86/include/asm/barrier.h
index 2ab1eb3..959e45b 100644
--- a/arch/x86/include/asm/barrier.h
+++ b/arch/x86/include/asm/barrier.h
@@ -95,13 +95,11 @@ do {									\
  * Stop RDTSC speculation. This is needed when you need to use RDTSC
  * (or get_cycles or vread that possibly accesses the TSC) in a defined
  * code region.
- *
- * (Could use an alternative three way for this if there was one.)
  */
 static __always_inline void rdtsc_barrier(void)
 {
-	alternative(ASM_NOP3, "mfence", X86_FEATURE_MFENCE_RDTSC);
-	alternative(ASM_NOP3, "lfence", X86_FEATURE_LFENCE_RDTSC);
+	alternative_2("", "mfence", X86_FEATURE_MFENCE_RDTSC,
+			  "lfence", X86_FEATURE_LFENCE_RDTSC);
 }
 
 #endif /* _ASM_X86_BARRIER_H */
diff --git a/arch/x86/include/asm/calling.h b/arch/x86/include/asm/calling.h
index 1f1297b..1c8b50e 100644
--- a/arch/x86/include/asm/calling.h
+++ b/arch/x86/include/asm/calling.h
@@ -55,143 +55,157 @@ For 32-bit we have the following conventions - kernel is built with
  * for assembly code:
  */
 
-#define R15		  0
-#define R14		  8
-#define R13		 16
-#define R12		 24
-#define RBP		 32
-#define RBX		 40
-
-/* arguments: interrupts/non tracing syscalls only save up to here: */
-#define R11		 48
-#define R10		 56
-#define R9		 64
-#define R8		 72
-#define RAX		 80
-#define RCX		 88
-#define RDX		 96
-#define RSI		104
-#define RDI		112
-#define ORIG_RAX	120       /* + error_code */
-/* end of arguments */
-
-/* cpu exception frame or undefined in case of fast syscall: */
-#define RIP		128
-#define CS		136
-#define EFLAGS		144
-#define RSP		152
-#define SS		160
-
-#define ARGOFFSET	R11
-
-	.macro SAVE_ARGS addskip=0, save_rcx=1, save_r891011=1, rax_enosys=0
-	subq  $9*8+\addskip, %rsp
-	CFI_ADJUST_CFA_OFFSET	9*8+\addskip
-	movq_cfi rdi, 8*8
-	movq_cfi rsi, 7*8
-	movq_cfi rdx, 6*8
-
-	.if \save_rcx
-	movq_cfi rcx, 5*8
-	.endif
+/* The layout forms the "struct pt_regs" on the stack: */
+/*
+ * C ABI says these regs are callee-preserved. They aren't saved on kernel entry
+ * unless syscall needs a complete, fully filled "struct pt_regs".
+ */
+#define R15		0*8
+#define R14		1*8
+#define R13		2*8
+#define R12		3*8
+#define RBP		4*8
+#define RBX		5*8
+/* These regs are callee-clobbered. Always saved on kernel entry. */
+#define R11		6*8
+#define R10		7*8
+#define R9		8*8
+#define R8		9*8
+#define RAX		10*8
+#define RCX		11*8
+#define RDX		12*8
+#define RSI		13*8
+#define RDI		14*8
+/*
+ * On syscall entry, this is syscall#. On CPU exception, this is error code.
+ * On hw interrupt, it's IRQ number:
+ */
+#define ORIG_RAX	15*8
+/* Return frame for iretq */
+#define RIP		16*8
+#define CS		17*8
+#define EFLAGS		18*8
+#define RSP		19*8
+#define SS		20*8
+
+#define SIZEOF_PTREGS	21*8
+
+	.macro ALLOC_PT_GPREGS_ON_STACK addskip=0
+	subq	$15*8+\addskip, %rsp
+	CFI_ADJUST_CFA_OFFSET 15*8+\addskip
+	.endm
 
-	.if \rax_enosys
-	movq $-ENOSYS, 4*8(%rsp)
-	.else
-	movq_cfi rax, 4*8
+	.macro SAVE_C_REGS_HELPER offset=0 rax=1 rcx=1 r8910=1 r11=1
+	.if \r11
+	movq_cfi r11, 6*8+\offset
 	.endif
-
-	.if \save_r891011
-	movq_cfi r8,  3*8
-	movq_cfi r9,  2*8
-	movq_cfi r10, 1*8
-	movq_cfi r11, 0*8
+	.if \r8910
+	movq_cfi r10, 7*8+\offset
+	movq_cfi r9,  8*8+\offset
+	movq_cfi r8,  9*8+\offset
+	.endif
+	.if \rax
+	movq_cfi rax, 10*8+\offset
+	.endif
+	.if \rcx
+	movq_cfi rcx, 11*8+\offset
 	.endif
+	movq_cfi rdx, 12*8+\offset
+	movq_cfi rsi, 13*8+\offset
+	movq_cfi rdi, 14*8+\offset
+	.endm
+	.macro SAVE_C_REGS offset=0
+	SAVE_C_REGS_HELPER \offset, 1, 1, 1, 1
+	.endm
+	.macro SAVE_C_REGS_EXCEPT_RAX_RCX offset=0
+	SAVE_C_REGS_HELPER \offset, 0, 0, 1, 1
+	.endm
+	.macro SAVE_C_REGS_EXCEPT_R891011
+	SAVE_C_REGS_HELPER 0, 1, 1, 0, 0
+	.endm
+	.macro SAVE_C_REGS_EXCEPT_RCX_R891011
+	SAVE_C_REGS_HELPER 0, 1, 0, 0, 0
+	.endm
+	.macro SAVE_C_REGS_EXCEPT_RAX_RCX_R11
+	SAVE_C_REGS_HELPER 0, 0, 0, 1, 0
+	.endm
+
+	.macro SAVE_EXTRA_REGS offset=0
+	movq_cfi r15, 0*8+\offset
+	movq_cfi r14, 1*8+\offset
+	movq_cfi r13, 2*8+\offset
+	movq_cfi r12, 3*8+\offset
+	movq_cfi rbp, 4*8+\offset
+	movq_cfi rbx, 5*8+\offset
+	.endm
+	.macro SAVE_EXTRA_REGS_RBP offset=0
+	movq_cfi rbp, 4*8+\offset
+	.endm
 
+	.macro RESTORE_EXTRA_REGS offset=0
+	movq_cfi_restore 0*8+\offset, r15
+	movq_cfi_restore 1*8+\offset, r14
+	movq_cfi_restore 2*8+\offset, r13
+	movq_cfi_restore 3*8+\offset, r12
+	movq_cfi_restore 4*8+\offset, rbp
+	movq_cfi_restore 5*8+\offset, rbx
 	.endm
 
-#define ARG_SKIP	(9*8)
+	.macro ZERO_EXTRA_REGS
+	xorl	%r15d, %r15d
+	xorl	%r14d, %r14d
+	xorl	%r13d, %r13d
+	xorl	%r12d, %r12d
+	xorl	%ebp, %ebp
+	xorl	%ebx, %ebx
+	.endm
 
-	.macro RESTORE_ARGS rstor_rax=1, addskip=0, rstor_rcx=1, rstor_r11=1, \
-			    rstor_r8910=1, rstor_rdx=1
+	.macro RESTORE_C_REGS_HELPER rstor_rax=1, rstor_rcx=1, rstor_r11=1, rstor_r8910=1, rstor_rdx=1
 	.if \rstor_r11
-	movq_cfi_restore 0*8, r11
+	movq_cfi_restore 6*8, r11
 	.endif
-
 	.if \rstor_r8910
-	movq_cfi_restore 1*8, r10
-	movq_cfi_restore 2*8, r9
-	movq_cfi_restore 3*8, r8
+	movq_cfi_restore 7*8, r10
+	movq_cfi_restore 8*8, r9
+	movq_cfi_restore 9*8, r8
 	.endif
-
 	.if \rstor_rax
-	movq_cfi_restore 4*8, rax
+	movq_cfi_restore 10*8, rax
 	.endif
-
 	.if \rstor_rcx
-	movq_cfi_restore 5*8, rcx
+	movq_cfi_restore 11*8, rcx
 	.endif
-
 	.if \rstor_rdx
-	movq_cfi_restore 6*8, rdx
-	.endif
-
-	movq_cfi_restore 7*8, rsi
-	movq_cfi_restore 8*8, rdi
-
-	.if ARG_SKIP+\addskip > 0
-	addq $ARG_SKIP+\addskip, %rsp
-	CFI_ADJUST_CFA_OFFSET	-(ARG_SKIP+\addskip)
+	movq_cfi_restore 12*8, rdx
 	.endif
+	movq_cfi_restore 13*8, rsi
+	movq_cfi_restore 14*8, rdi
 	.endm
-
-	.macro LOAD_ARGS offset, skiprax=0
-	movq \offset(%rsp),    %r11
-	movq \offset+8(%rsp),  %r10
-	movq \offset+16(%rsp), %r9
-	movq \offset+24(%rsp), %r8
-	movq \offset+40(%rsp), %rcx
-	movq \offset+48(%rsp), %rdx
-	movq \offset+56(%rsp), %rsi
-	movq \offset+64(%rsp), %rdi
-	.if \skiprax
-	.else
-	movq \offset+72(%rsp), %rax
-	.endif
+	.macro RESTORE_C_REGS
+	RESTORE_C_REGS_HELPER 1,1,1,1,1
 	.endm
-
-#define REST_SKIP	(6*8)
-
-	.macro SAVE_REST
-	subq $REST_SKIP, %rsp
-	CFI_ADJUST_CFA_OFFSET	REST_SKIP
-	movq_cfi rbx, 5*8
-	movq_cfi rbp, 4*8
-	movq_cfi r12, 3*8
-	movq_cfi r13, 2*8
-	movq_cfi r14, 1*8
-	movq_cfi r15, 0*8
+	.macro RESTORE_C_REGS_EXCEPT_RAX
+	RESTORE_C_REGS_HELPER 0,1,1,1,1
 	.endm
-
-	.macro RESTORE_REST
-	movq_cfi_restore 0*8, r15
-	movq_cfi_restore 1*8, r14
-	movq_cfi_restore 2*8, r13
-	movq_cfi_restore 3*8, r12
-	movq_cfi_restore 4*8, rbp
-	movq_cfi_restore 5*8, rbx
-	addq $REST_SKIP, %rsp
-	CFI_ADJUST_CFA_OFFSET	-(REST_SKIP)
+	.macro RESTORE_C_REGS_EXCEPT_RCX
+	RESTORE_C_REGS_HELPER 1,0,1,1,1
 	.endm
-
-	.macro SAVE_ALL
-	SAVE_ARGS
-	SAVE_REST
+	.macro RESTORE_C_REGS_EXCEPT_R11
+	RESTORE_C_REGS_HELPER 1,1,0,1,1
+	.endm
+	.macro RESTORE_C_REGS_EXCEPT_RCX_R11
+	RESTORE_C_REGS_HELPER 1,0,0,1,1
+	.endm
+	.macro RESTORE_RSI_RDI
+	RESTORE_C_REGS_HELPER 0,0,0,0,0
+	.endm
+	.macro RESTORE_RSI_RDI_RDX
+	RESTORE_C_REGS_HELPER 0,0,0,0,1
 	.endm
 
-	.macro RESTORE_ALL addskip=0
-	RESTORE_REST
-	RESTORE_ARGS 1, \addskip
+	.macro REMOVE_PT_GPREGS_FROM_STACK addskip=0
+	addq $15*8+\addskip, %rsp
+	CFI_ADJUST_CFA_OFFSET -(15*8+\addskip)
 	.endm
 
 	.macro icebp
@@ -210,37 +224,23 @@ For 32-bit we have the following conventions - kernel is built with
  */
 
 	.macro SAVE_ALL
-	pushl_cfi %eax
-	CFI_REL_OFFSET eax, 0
-	pushl_cfi %ebp
-	CFI_REL_OFFSET ebp, 0
-	pushl_cfi %edi
-	CFI_REL_OFFSET edi, 0
-	pushl_cfi %esi
-	CFI_REL_OFFSET esi, 0
-	pushl_cfi %edx
-	CFI_REL_OFFSET edx, 0
-	pushl_cfi %ecx
-	CFI_REL_OFFSET ecx, 0
-	pushl_cfi %ebx
-	CFI_REL_OFFSET ebx, 0
+	pushl_cfi_reg eax
+	pushl_cfi_reg ebp
+	pushl_cfi_reg edi
+	pushl_cfi_reg esi
+	pushl_cfi_reg edx
+	pushl_cfi_reg ecx
+	pushl_cfi_reg ebx
 	.endm
 
 	.macro RESTORE_ALL
-	popl_cfi %ebx
-	CFI_RESTORE ebx
-	popl_cfi %ecx
-	CFI_RESTORE ecx
-	popl_cfi %edx
-	CFI_RESTORE edx
-	popl_cfi %esi
-	CFI_RESTORE esi
-	popl_cfi %edi
-	CFI_RESTORE edi
-	popl_cfi %ebp
-	CFI_RESTORE ebp
-	popl_cfi %eax
-	CFI_RESTORE eax
+	popl_cfi_reg ebx
+	popl_cfi_reg ecx
+	popl_cfi_reg edx
+	popl_cfi_reg esi
+	popl_cfi_reg edi
+	popl_cfi_reg ebp
+	popl_cfi_reg eax
 	.endm
 
 #endif /* CONFIG_X86_64 */
diff --git a/arch/x86/include/asm/compat.h b/arch/x86/include/asm/compat.h
index 59c6c40..acdee09 100644
--- a/arch/x86/include/asm/compat.h
+++ b/arch/x86/include/asm/compat.h
@@ -301,7 +301,7 @@ static inline void __user *arch_compat_alloc_user_space(long len)
 		sp = task_pt_regs(current)->sp;
 	} else {
 		/* -128 for the x32 ABI redzone */
-		sp = this_cpu_read(old_rsp) - 128;
+		sp = task_pt_regs(current)->sp - 128;
 	}
 
 	return (void __user *)round_down(sp - len, 16);
diff --git a/arch/x86/include/asm/cpufeature.h b/arch/x86/include/asm/cpufeature.h
index 90a5485..854c04b 100644
--- a/arch/x86/include/asm/cpufeature.h
+++ b/arch/x86/include/asm/cpufeature.h
@@ -231,7 +231,9 @@
 #define X86_FEATURE_RDSEED	( 9*32+18) /* The RDSEED instruction */
 #define X86_FEATURE_ADX		( 9*32+19) /* The ADCX and ADOX instructions */
 #define X86_FEATURE_SMAP	( 9*32+20) /* Supervisor Mode Access Prevention */
+#define X86_FEATURE_PCOMMIT	( 9*32+22) /* PCOMMIT instruction */
 #define X86_FEATURE_CLFLUSHOPT	( 9*32+23) /* CLFLUSHOPT instruction */
+#define X86_FEATURE_CLWB	( 9*32+24) /* CLWB instruction */
 #define X86_FEATURE_AVX512PF	( 9*32+26) /* AVX-512 Prefetch */
 #define X86_FEATURE_AVX512ER	( 9*32+27) /* AVX-512 Exponential and Reciprocal */
 #define X86_FEATURE_AVX512CD	( 9*32+28) /* AVX-512 Conflict Detection */
@@ -418,6 +420,7 @@ static __always_inline __pure bool __static_cpu_has(u16 bit)
 			 " .word %P0\n"		/* 1: do replace */
 			 " .byte 2b - 1b\n"	/* source len */
 			 " .byte 0\n"		/* replacement len */
+			 " .byte 0\n"		/* pad len */
 			 ".previous\n"
 			 /* skipping size check since replacement size = 0 */
 			 : : "i" (X86_FEATURE_ALWAYS) : : t_warn);
@@ -432,6 +435,7 @@ static __always_inline __pure bool __static_cpu_has(u16 bit)
 			 " .word %P0\n"		/* feature bit */
 			 " .byte 2b - 1b\n"	/* source len */
 			 " .byte 0\n"		/* replacement len */
+			 " .byte 0\n"		/* pad len */
 			 ".previous\n"
 			 /* skipping size check since replacement size = 0 */
 			 : : "i" (bit) : : t_no);
@@ -457,6 +461,7 @@ static __always_inline __pure bool __static_cpu_has(u16 bit)
 			     " .word %P1\n"		/* feature bit */
 			     " .byte 2b - 1b\n"		/* source len */
 			     " .byte 4f - 3f\n"		/* replacement len */
+			     " .byte 0\n"		/* pad len */
 			     ".previous\n"
 			     ".section .discard,\"aw\",@progbits\n"
 			     " .byte 0xff + (4f-3f) - (2b-1b)\n" /* size check */
@@ -483,31 +488,30 @@ static __always_inline __pure bool __static_cpu_has(u16 bit)
 static __always_inline __pure bool _static_cpu_has_safe(u16 bit)
 {
 #ifdef CC_HAVE_ASM_GOTO
-/*
- * We need to spell the jumps to the compiler because, depending on the offset,
- * the replacement jump can be bigger than the original jump, and this we cannot
- * have. Thus, we force the jump to the widest, 4-byte, signed relative
- * offset even though the last would often fit in less bytes.
- */
-		asm_volatile_goto("1: .byte 0xe9\n .long %l[t_dynamic] - 2f\n"
+		asm_volatile_goto("1: jmp %l[t_dynamic]\n"
 			 "2:\n"
+			 ".skip -(((5f-4f) - (2b-1b)) > 0) * "
+			         "((5f-4f) - (2b-1b)),0x90\n"
+			 "3:\n"
 			 ".section .altinstructions,\"a\"\n"
 			 " .long 1b - .\n"		/* src offset */
-			 " .long 3f - .\n"		/* repl offset */
+			 " .long 4f - .\n"		/* repl offset */
 			 " .word %P1\n"			/* always replace */
-			 " .byte 2b - 1b\n"		/* src len */
-			 " .byte 4f - 3f\n"		/* repl len */
+			 " .byte 3b - 1b\n"		/* src len */
+			 " .byte 5f - 4f\n"		/* repl len */
+			 " .byte 3b - 2b\n"		/* pad len */
 			 ".previous\n"
 			 ".section .altinstr_replacement,\"ax\"\n"
-			 "3: .byte 0xe9\n .long %l[t_no] - 2b\n"
-			 "4:\n"
+			 "4: jmp %l[t_no]\n"
+			 "5:\n"
 			 ".previous\n"
 			 ".section .altinstructions,\"a\"\n"
 			 " .long 1b - .\n"		/* src offset */
 			 " .long 0\n"			/* no replacement */
 			 " .word %P0\n"			/* feature bit */
-			 " .byte 2b - 1b\n"		/* src len */
+			 " .byte 3b - 1b\n"		/* src len */
 			 " .byte 0\n"			/* repl len */
+			 " .byte 0\n"			/* pad len */
 			 ".previous\n"
 			 : : "i" (bit), "i" (X86_FEATURE_ALWAYS)
 			 : : t_dynamic, t_no);
@@ -527,6 +531,7 @@ static __always_inline __pure bool _static_cpu_has_safe(u16 bit)
 			     " .word %P2\n"		/* always replace */
 			     " .byte 2b - 1b\n"		/* source len */
 			     " .byte 4f - 3f\n"		/* replacement len */
+			     " .byte 0\n"		/* pad len */
 			     ".previous\n"
 			     ".section .discard,\"aw\",@progbits\n"
 			     " .byte 0xff + (4f-3f) - (2b-1b)\n" /* size check */
@@ -541,6 +546,7 @@ static __always_inline __pure bool _static_cpu_has_safe(u16 bit)
 			     " .word %P1\n"		/* feature bit */
 			     " .byte 4b - 3b\n"		/* src len */
 			     " .byte 6f - 5f\n"		/* repl len */
+			     " .byte 0\n"		/* pad len */
 			     ".previous\n"
 			     ".section .discard,\"aw\",@progbits\n"
 			     " .byte 0xff + (6f-5f) - (4b-3b)\n" /* size check */
diff --git a/arch/x86/include/asm/desc.h b/arch/x86/include/asm/desc.h
index a94b82e..a0bf89f 100644
--- a/arch/x86/include/asm/desc.h
+++ b/arch/x86/include/asm/desc.h
@@ -376,11 +376,16 @@ static inline void _set_gate(int gate, unsigned type, void *addr,
  * Pentium F0 0F bugfix can have resulted in the mapped
  * IDT being write-protected.
  */
-#define set_intr_gate(n, addr)						\
+#define set_intr_gate_notrace(n, addr)					\
 	do {								\
 		BUG_ON((unsigned)n > 0xFF);				\
 		_set_gate(n, GATE_INTERRUPT, (void *)addr, 0, 0,	\
 			  __KERNEL_CS);					\
+	} while (0)
+
+#define set_intr_gate(n, addr)						\
+	do {								\
+		set_intr_gate_notrace(n, addr);				\
 		_trace_set_gate(n, GATE_INTERRUPT, (void *)trace_##addr,\
 				0, 0, __KERNEL_CS);			\
 	} while (0)
diff --git a/arch/x86/include/asm/dwarf2.h b/arch/x86/include/asm/dwarf2.h
index f6f1598..de1cdaf 100644
--- a/arch/x86/include/asm/dwarf2.h
+++ b/arch/x86/include/asm/dwarf2.h
@@ -86,11 +86,23 @@
 	CFI_ADJUST_CFA_OFFSET 8
 	.endm
 
+	.macro pushq_cfi_reg reg
+	pushq %\reg
+	CFI_ADJUST_CFA_OFFSET 8
+	CFI_REL_OFFSET \reg, 0
+	.endm
+
 	.macro popq_cfi reg
 	popq \reg
 	CFI_ADJUST_CFA_OFFSET -8
 	.endm
 
+	.macro popq_cfi_reg reg
+	popq %\reg
+	CFI_ADJUST_CFA_OFFSET -8
+	CFI_RESTORE \reg
+	.endm
+
 	.macro pushfq_cfi
 	pushfq
 	CFI_ADJUST_CFA_OFFSET 8
@@ -116,11 +128,23 @@
 	CFI_ADJUST_CFA_OFFSET 4
 	.endm
 
+	.macro pushl_cfi_reg reg
+	pushl %\reg
+	CFI_ADJUST_CFA_OFFSET 4
+	CFI_REL_OFFSET \reg, 0
+	.endm
+
 	.macro popl_cfi reg
 	popl \reg
 	CFI_ADJUST_CFA_OFFSET -4
 	.endm
 
+	.macro popl_cfi_reg reg
+	popl %\reg
+	CFI_ADJUST_CFA_OFFSET -4
+	CFI_RESTORE \reg
+	.endm
+
 	.macro pushfl_cfi
 	pushfl
 	CFI_ADJUST_CFA_OFFSET 4
diff --git a/arch/x86/include/asm/efi.h b/arch/x86/include/asm/efi.h
index 25bce45..3738b13 100644
--- a/arch/x86/include/asm/efi.h
+++ b/arch/x86/include/asm/efi.h
@@ -2,6 +2,8 @@
 #define _ASM_X86_EFI_H
 
 #include <asm/i387.h>
+#include <asm/pgtable.h>
+
 /*
  * We map the EFI regions needed for runtime services non-contiguously,
  * with preserved alignment on virtual addresses starting from -4G down
@@ -89,8 +91,8 @@ extern void __iomem *__init efi_ioremap(unsigned long addr, unsigned long size,
 extern struct efi_scratch efi_scratch;
 extern void __init efi_set_executable(efi_memory_desc_t *md, bool executable);
 extern int __init efi_memblock_x86_reserve_range(void);
-extern void __init efi_call_phys_prolog(void);
-extern void __init efi_call_phys_epilog(void);
+extern pgd_t * __init efi_call_phys_prolog(void);
+extern void __init efi_call_phys_epilog(pgd_t *save_pgd);
 extern void __init efi_unmap_memmap(void);
 extern void __init efi_memory_uc(u64 addr, unsigned long size);
 extern void __init efi_map_region(efi_memory_desc_t *md);
diff --git a/arch/x86/include/asm/elf.h b/arch/x86/include/asm/elf.h
index ca3347a..935588d9 100644
--- a/arch/x86/include/asm/elf.h
+++ b/arch/x86/include/asm/elf.h
@@ -171,10 +171,11 @@ do {						\
 static inline void elf_common_init(struct thread_struct *t,
 				   struct pt_regs *regs, const u16 ds)
 {
-	regs->ax = regs->bx = regs->cx = regs->dx = 0;
-	regs->si = regs->di = regs->bp = 0;
+	/* Commented-out registers are cleared in stub_execve */
+	/*regs->ax = regs->bx =*/ regs->cx = regs->dx = 0;
+	regs->si = regs->di /*= regs->bp*/ = 0;
 	regs->r8 = regs->r9 = regs->r10 = regs->r11 = 0;
-	regs->r12 = regs->r13 = regs->r14 = regs->r15 = 0;
+	/*regs->r12 = regs->r13 = regs->r14 = regs->r15 = 0;*/
 	t->fs = t->gs = 0;
 	t->fsindex = t->gsindex = 0;
 	t->ds = t->es = ds;
@@ -365,6 +366,7 @@ enum align_flags {
 struct va_alignment {
 	int flags;
 	unsigned long mask;
+	unsigned long bits;
 } ____cacheline_aligned;
 
 extern struct va_alignment va_align;
diff --git a/arch/x86/include/asm/fpu-internal.h b/arch/x86/include/asm/fpu-internal.h
index 0dbc082..da5e967 100644
--- a/arch/x86/include/asm/fpu-internal.h
+++ b/arch/x86/include/asm/fpu-internal.h
@@ -67,6 +67,34 @@ extern void finit_soft_fpu(struct i387_soft_struct *soft);
 static inline void finit_soft_fpu(struct i387_soft_struct *soft) {}
 #endif
 
+/*
+ * Must be run with preemption disabled: this clears the fpu_owner_task,
+ * on this CPU.
+ *
+ * This will disable any lazy FPU state restore of the current FPU state,
+ * but if the current thread owns the FPU, it will still be saved by.
+ */
+static inline void __cpu_disable_lazy_restore(unsigned int cpu)
+{
+	per_cpu(fpu_owner_task, cpu) = NULL;
+}
+
+/*
+ * Used to indicate that the FPU state in memory is newer than the FPU
+ * state in registers, and the FPU state should be reloaded next time the
+ * task is run. Only safe on the current task, or non-running tasks.
+ */
+static inline void task_disable_lazy_fpu_restore(struct task_struct *tsk)
+{
+	tsk->thread.fpu.last_cpu = ~0;
+}
+
+static inline int fpu_lazy_restore(struct task_struct *new, unsigned int cpu)
+{
+	return new == this_cpu_read_stable(fpu_owner_task) &&
+		cpu == new->thread.fpu.last_cpu;
+}
+
 static inline int is_ia32_compat_frame(void)
 {
 	return config_enabled(CONFIG_IA32_EMULATION) &&
@@ -107,7 +135,6 @@ static __always_inline __pure bool use_fxsr(void)
 
 static inline void fx_finit(struct i387_fxsave_struct *fx)
 {
-	memset(fx, 0, xstate_size);
 	fx->cwd = 0x37f;
 	fx->mxcsr = MXCSR_DEFAULT;
 }
@@ -351,8 +378,14 @@ static inline void __thread_fpu_begin(struct task_struct *tsk)
 	__thread_set_has_fpu(tsk);
 }
 
-static inline void __drop_fpu(struct task_struct *tsk)
+static inline void drop_fpu(struct task_struct *tsk)
 {
+	/*
+	 * Forget coprocessor state..
+	 */
+	preempt_disable();
+	tsk->thread.fpu_counter = 0;
+
 	if (__thread_has_fpu(tsk)) {
 		/* Ignore delayed exceptions from user space */
 		asm volatile("1: fwait\n"
@@ -360,30 +393,29 @@ static inline void __drop_fpu(struct task_struct *tsk)
 			     _ASM_EXTABLE(1b, 2b));
 		__thread_fpu_end(tsk);
 	}
+
+	clear_stopped_child_used_math(tsk);
+	preempt_enable();
 }
 
-static inline void drop_fpu(struct task_struct *tsk)
+static inline void restore_init_xstate(void)
 {
-	/*
-	 * Forget coprocessor state..
-	 */
-	preempt_disable();
-	tsk->thread.fpu_counter = 0;
-	__drop_fpu(tsk);
-	clear_used_math();
-	preempt_enable();
+	if (use_xsave())
+		xrstor_state(init_xstate_buf, -1);
+	else
+		fxrstor_checking(&init_xstate_buf->i387);
 }
 
-static inline void drop_init_fpu(struct task_struct *tsk)
+/*
+ * Reset the FPU state in the eager case and drop it in the lazy case (later use
+ * will reinit it).
+ */
+static inline void fpu_reset_state(struct task_struct *tsk)
 {
 	if (!use_eager_fpu())
 		drop_fpu(tsk);
-	else {
-		if (use_xsave())
-			xrstor_state(init_xstate_buf, -1);
-		else
-			fxrstor_checking(&init_xstate_buf->i387);
-	}
+	else
+		restore_init_xstate();
 }
 
 /*
@@ -400,24 +432,6 @@ static inline void drop_init_fpu(struct task_struct *tsk)
  */
 typedef struct { int preload; } fpu_switch_t;
 
-/*
- * Must be run with preemption disabled: this clears the fpu_owner_task,
- * on this CPU.
- *
- * This will disable any lazy FPU state restore of the current FPU state,
- * but if the current thread owns the FPU, it will still be saved by.
- */
-static inline void __cpu_disable_lazy_restore(unsigned int cpu)
-{
-	per_cpu(fpu_owner_task, cpu) = NULL;
-}
-
-static inline int fpu_lazy_restore(struct task_struct *new, unsigned int cpu)
-{
-	return new == this_cpu_read_stable(fpu_owner_task) &&
-		cpu == new->thread.fpu.last_cpu;
-}
-
 static inline fpu_switch_t switch_fpu_prepare(struct task_struct *old, struct task_struct *new, int cpu)
 {
 	fpu_switch_t fpu;
@@ -426,13 +440,17 @@ static inline fpu_switch_t switch_fpu_prepare(struct task_struct *old, struct ta
 	 * If the task has used the math, pre-load the FPU on xsave processors
 	 * or if the past 5 consecutive context-switches used math.
 	 */
-	fpu.preload = tsk_used_math(new) && (use_eager_fpu() ||
-					     new->thread.fpu_counter > 5);
+	fpu.preload = tsk_used_math(new) &&
+		      (use_eager_fpu() || new->thread.fpu_counter > 5);
+
 	if (__thread_has_fpu(old)) {
 		if (!__save_init_fpu(old))
-			cpu = ~0;
-		old->thread.fpu.last_cpu = cpu;
-		old->thread.fpu.has_fpu = 0;	/* But leave fpu_owner_task! */
+			task_disable_lazy_fpu_restore(old);
+		else
+			old->thread.fpu.last_cpu = cpu;
+
+		/* But leave fpu_owner_task! */
+		old->thread.fpu.has_fpu = 0;
 
 		/* Don't change CR0.TS if we just switch! */
 		if (fpu.preload) {
@@ -443,10 +461,10 @@ static inline fpu_switch_t switch_fpu_prepare(struct task_struct *old, struct ta
 			stts();
 	} else {
 		old->thread.fpu_counter = 0;
-		old->thread.fpu.last_cpu = ~0;
+		task_disable_lazy_fpu_restore(old);
 		if (fpu.preload) {
 			new->thread.fpu_counter++;
-			if (!use_eager_fpu() && fpu_lazy_restore(new, cpu))
+			if (fpu_lazy_restore(new, cpu))
 				fpu.preload = 0;
 			else
 				prefetch(new->thread.fpu.state);
@@ -466,7 +484,7 @@ static inline void switch_fpu_finish(struct task_struct *new, fpu_switch_t fpu)
 {
 	if (fpu.preload) {
 		if (unlikely(restore_fpu_checking(new)))
-			drop_init_fpu(new);
+			fpu_reset_state(new);
 	}
 }
 
@@ -495,10 +513,12 @@ static inline int restore_xstate_sig(void __user *buf, int ia32_frame)
 }
 
 /*
- * Need to be preemption-safe.
+ * Needs to be preemption-safe.
  *
  * NOTE! user_fpu_begin() must be used only immediately before restoring
- * it. This function does not do any save/restore on their own.
+ * the save state. It does not do any saving/restoring on its own. In
+ * lazy FPU mode, it is just an optimization to avoid a #NM exception,
+ * the task can lose the FPU right after preempt_enable().
  */
 static inline void user_fpu_begin(void)
 {
@@ -520,24 +540,6 @@ static inline void __save_fpu(struct task_struct *tsk)
 }
 
 /*
- * These disable preemption on their own and are safe
- */
-static inline void save_init_fpu(struct task_struct *tsk)
-{
-	WARN_ON_ONCE(!__thread_has_fpu(tsk));
-
-	if (use_eager_fpu()) {
-		__save_fpu(tsk);
-		return;
-	}
-
-	preempt_disable();
-	__save_init_fpu(tsk);
-	__thread_fpu_end(tsk);
-	preempt_enable();
-}
-
-/*
  * i387 state interaction
  */
 static inline unsigned short get_fpu_cwd(struct task_struct *tsk)
diff --git a/arch/x86/include/asm/hw_irq.h b/arch/x86/include/asm/hw_irq.h
index 9662290..e9571dd 100644
--- a/arch/x86/include/asm/hw_irq.h
+++ b/arch/x86/include/asm/hw_irq.h
@@ -181,10 +181,9 @@ extern __visible void smp_call_function_single_interrupt(struct pt_regs *);
 extern __visible void smp_invalidate_interrupt(struct pt_regs *);
 #endif
 
-extern void (*__initconst interrupt[FIRST_SYSTEM_VECTOR
-				    - FIRST_EXTERNAL_VECTOR])(void);
+extern char irq_entries_start[];
 #ifdef CONFIG_TRACING
-#define trace_interrupt interrupt
+#define trace_irq_entries_start irq_entries_start
 #endif
 
 #define VECTOR_UNDEFINED	(-1)
diff --git a/arch/x86/include/asm/insn.h b/arch/x86/include/asm/insn.h
index 47f29b1..e7814b7 100644
--- a/arch/x86/include/asm/insn.h
+++ b/arch/x86/include/asm/insn.h
@@ -69,7 +69,7 @@ struct insn {
 	const insn_byte_t *next_byte;
 };
 
-#define MAX_INSN_SIZE	16
+#define MAX_INSN_SIZE	15
 
 #define X86_MODRM_MOD(modrm) (((modrm) & 0xc0) >> 6)
 #define X86_MODRM_REG(modrm) (((modrm) & 0x38) >> 3)
diff --git a/arch/x86/include/asm/iommu_table.h b/arch/x86/include/asm/iommu_table.h
index f42a047..e37d6b3 100644
--- a/arch/x86/include/asm/iommu_table.h
+++ b/arch/x86/include/asm/iommu_table.h
@@ -79,11 +79,12 @@ struct iommu_table_entry {
  *  d). Similar to the 'init', except that this gets called from pci_iommu_init
  *      where we do have a memory allocator.
  *
- * The standard vs the _FINISH differs in that the _FINISH variant will
- * continue detecting other IOMMUs in the call list after the
- * the detection routine returns a positive number. The _FINISH will
- * stop the execution chain. Both will still call the 'init' and
- * 'late_init' functions if they are set.
+ * The standard IOMMU_INIT differs from the IOMMU_INIT_FINISH variant
+ * in that the former will continue detecting other IOMMUs in the call
+ * list after the detection routine returns a positive number, while the
+ * latter will stop the execution chain upon first successful detection.
+ * Both variants will still call the 'init' and 'late_init' functions if
+ * they are set.
  */
 #define IOMMU_INIT_FINISH(_detect, _depend, _init, _late_init)		\
 	__IOMMU_INIT(_detect, _depend, _init, _late_init, 1)
diff --git a/arch/x86/include/asm/irqflags.h b/arch/x86/include/asm/irqflags.h
index 0a8b519..b77f5ed 100644
--- a/arch/x86/include/asm/irqflags.h
+++ b/arch/x86/include/asm/irqflags.h
@@ -136,10 +136,6 @@ static inline notrace unsigned long arch_local_irq_save(void)
 #define USERGS_SYSRET32				\
 	swapgs;					\
 	sysretl
-#define ENABLE_INTERRUPTS_SYSEXIT32		\
-	swapgs;					\
-	sti;					\
-	sysexit
 
 #else
 #define INTERRUPT_RETURN		iret
@@ -163,22 +159,27 @@ static inline int arch_irqs_disabled(void)
 
 	return arch_irqs_disabled_flags(flags);
 }
+#endif /* !__ASSEMBLY__ */
 
+#ifdef __ASSEMBLY__
+#ifdef CONFIG_TRACE_IRQFLAGS
+#  define TRACE_IRQS_ON		call trace_hardirqs_on_thunk;
+#  define TRACE_IRQS_OFF	call trace_hardirqs_off_thunk;
 #else
-
-#ifdef CONFIG_X86_64
-#define ARCH_LOCKDEP_SYS_EXIT		call lockdep_sys_exit_thunk
-#define ARCH_LOCKDEP_SYS_EXIT_IRQ	\
+#  define TRACE_IRQS_ON
+#  define TRACE_IRQS_OFF
+#endif
+#ifdef CONFIG_DEBUG_LOCK_ALLOC
+#  ifdef CONFIG_X86_64
+#    define LOCKDEP_SYS_EXIT		call lockdep_sys_exit_thunk
+#    define LOCKDEP_SYS_EXIT_IRQ \
 	TRACE_IRQS_ON; \
 	sti; \
-	SAVE_REST; \
-	LOCKDEP_SYS_EXIT; \
-	RESTORE_REST; \
+	call lockdep_sys_exit_thunk; \
 	cli; \
 	TRACE_IRQS_OFF;
-
-#else
-#define ARCH_LOCKDEP_SYS_EXIT			\
+#  else
+#    define LOCKDEP_SYS_EXIT \
 	pushl %eax;				\
 	pushl %ecx;				\
 	pushl %edx;				\
@@ -186,24 +187,12 @@ static inline int arch_irqs_disabled(void)
 	popl %edx;				\
 	popl %ecx;				\
 	popl %eax;
-
-#define ARCH_LOCKDEP_SYS_EXIT_IRQ
-#endif
-
-#ifdef CONFIG_TRACE_IRQFLAGS
-#  define TRACE_IRQS_ON		call trace_hardirqs_on_thunk;
-#  define TRACE_IRQS_OFF	call trace_hardirqs_off_thunk;
+#    define LOCKDEP_SYS_EXIT_IRQ
+#  endif
 #else
-#  define TRACE_IRQS_ON
-#  define TRACE_IRQS_OFF
-#endif
-#ifdef CONFIG_DEBUG_LOCK_ALLOC
-#  define LOCKDEP_SYS_EXIT	ARCH_LOCKDEP_SYS_EXIT
-#  define LOCKDEP_SYS_EXIT_IRQ	ARCH_LOCKDEP_SYS_EXIT_IRQ
-# else
 #  define LOCKDEP_SYS_EXIT
 #  define LOCKDEP_SYS_EXIT_IRQ
-# endif
-
+#endif
 #endif /* __ASSEMBLY__ */
+
 #endif
diff --git a/arch/x86/include/asm/jump_label.h b/arch/x86/include/asm/jump_label.h
index 6a2cefb..a4c1cf7 100644
--- a/arch/x86/include/asm/jump_label.h
+++ b/arch/x86/include/asm/jump_label.h
@@ -1,7 +1,7 @@
 #ifndef _ASM_X86_JUMP_LABEL_H
 #define _ASM_X86_JUMP_LABEL_H
 
-#ifdef __KERNEL__
+#ifndef __ASSEMBLY__
 
 #include <linux/stringify.h>
 #include <linux/types.h>
@@ -30,8 +30,6 @@ l_yes:
 	return true;
 }
 
-#endif /* __KERNEL__ */
-
 #ifdef CONFIG_X86_64
 typedef u64 jump_label_t;
 #else
@@ -44,4 +42,5 @@ struct jump_entry {
 	jump_label_t key;
 };
 
+#endif  /* __ASSEMBLY__ */
 #endif
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index a236e39..dea2e7e 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -81,11 +81,6 @@ static inline gfn_t gfn_to_index(gfn_t gfn, gfn_t base_gfn, int level)
 		(base_gfn >> KVM_HPAGE_GFN_SHIFT(level));
 }
 
-#define SELECTOR_TI_MASK (1 << 2)
-#define SELECTOR_RPL_MASK 0x03
-
-#define IOPL_SHIFT 12
-
 #define KVM_PERMILLE_MMU_PAGES 20
 #define KVM_MIN_ALLOC_MMU_PAGES 64
 #define KVM_MMU_HASH_SHIFT 10
@@ -345,6 +340,7 @@ struct kvm_pmu {
 enum {
 	KVM_DEBUGREG_BP_ENABLED = 1,
 	KVM_DEBUGREG_WONT_EXIT = 2,
+	KVM_DEBUGREG_RELOAD = 4,
 };
 
 struct kvm_vcpu_arch {
@@ -431,6 +427,9 @@ struct kvm_vcpu_arch {
 
 	int cpuid_nent;
 	struct kvm_cpuid_entry2 cpuid_entries[KVM_MAX_CPUID_ENTRIES];
+
+	int maxphyaddr;
+
 	/* emulate context */
 
 	struct x86_emulate_ctxt emulate_ctxt;
@@ -550,11 +549,20 @@ struct kvm_arch_memory_slot {
 	struct kvm_lpage_info *lpage_info[KVM_NR_PAGE_SIZES - 1];
 };
 
+/*
+ * We use as the mode the number of bits allocated in the LDR for the
+ * logical processor ID.  It happens that these are all powers of two.
+ * This makes it is very easy to detect cases where the APICs are
+ * configured for multiple modes; in that case, we cannot use the map and
+ * hence cannot use kvm_irq_delivery_to_apic_fast either.
+ */
+#define KVM_APIC_MODE_XAPIC_CLUSTER          4
+#define KVM_APIC_MODE_XAPIC_FLAT             8
+#define KVM_APIC_MODE_X2APIC                16
+
 struct kvm_apic_map {
 	struct rcu_head rcu;
-	u8 ldr_bits;
-	/* fields bellow are used to decode ldr values in different modes */
-	u32 cid_shift, cid_mask, lid_mask, broadcast;
+	u8 mode;
 	struct kvm_lapic *phys_map[256];
 	/* first index is cluster id second is cpu id in a cluster */
 	struct kvm_lapic *logical_map[16][16];
@@ -859,6 +867,8 @@ void kvm_mmu_set_mask_ptes(u64 user_mask, u64 accessed_mask,
 void kvm_mmu_reset_context(struct kvm_vcpu *vcpu);
 void kvm_mmu_slot_remove_write_access(struct kvm *kvm,
 				      struct kvm_memory_slot *memslot);
+void kvm_mmu_zap_collapsible_sptes(struct kvm *kvm,
+					struct kvm_memory_slot *memslot);
 void kvm_mmu_slot_leaf_clear_dirty(struct kvm *kvm,
 				   struct kvm_memory_slot *memslot);
 void kvm_mmu_slot_largepage_remove_write_access(struct kvm *kvm,
@@ -933,6 +943,7 @@ struct x86_emulate_ctxt;
 int kvm_fast_pio_out(struct kvm_vcpu *vcpu, int size, unsigned short port);
 void kvm_emulate_cpuid(struct kvm_vcpu *vcpu);
 int kvm_emulate_halt(struct kvm_vcpu *vcpu);
+int kvm_vcpu_halt(struct kvm_vcpu *vcpu);
 int kvm_emulate_wbinvd(struct kvm_vcpu *vcpu);
 
 void kvm_get_segment(struct kvm_vcpu *vcpu, struct kvm_segment *var, int seg);
@@ -1128,7 +1139,6 @@ int kvm_unmap_hva_range(struct kvm *kvm, unsigned long start, unsigned long end)
 int kvm_age_hva(struct kvm *kvm, unsigned long start, unsigned long end);
 int kvm_test_age_hva(struct kvm *kvm, unsigned long hva);
 void kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte);
-int cpuid_maxphyaddr(struct kvm_vcpu *vcpu);
 int kvm_cpu_has_injectable_intr(struct kvm_vcpu *v);
 int kvm_cpu_has_interrupt(struct kvm_vcpu *vcpu);
 int kvm_arch_interrupt_allowed(struct kvm_vcpu *vcpu);
diff --git a/arch/x86/include/asm/kvm_para.h b/arch/x86/include/asm/kvm_para.h
index e62cf89..c1adf33 100644
--- a/arch/x86/include/asm/kvm_para.h
+++ b/arch/x86/include/asm/kvm_para.h
@@ -115,7 +115,7 @@ static inline void kvm_spinlock_init(void)
 
 static inline bool kvm_para_available(void)
 {
-	return 0;
+	return false;
 }
 
 static inline unsigned int kvm_arch_para_features(void)
diff --git a/arch/x86/include/asm/mce.h b/arch/x86/include/asm/mce.h
index 9b3de99..1f5a86d 100644
--- a/arch/x86/include/asm/mce.h
+++ b/arch/x86/include/asm/mce.h
@@ -116,6 +116,12 @@ struct mca_config {
 	u32 rip_msr;
 };
 
+struct mce_vendor_flags {
+	__u64		overflow_recov	: 1, /* cpuid_ebx(80000007) */
+			__reserved_0	: 63;
+};
+extern struct mce_vendor_flags mce_flags;
+
 extern struct mca_config mca_cfg;
 extern void mce_register_decode_chain(struct notifier_block *nb);
 extern void mce_unregister_decode_chain(struct notifier_block *nb);
@@ -128,9 +134,11 @@ extern int mce_p5_enabled;
 #ifdef CONFIG_X86_MCE
 int mcheck_init(void);
 void mcheck_cpu_init(struct cpuinfo_x86 *c);
+void mcheck_vendor_init_severity(void);
 #else
 static inline int mcheck_init(void) { return 0; }
 static inline void mcheck_cpu_init(struct cpuinfo_x86 *c) {}
+static inline void mcheck_vendor_init_severity(void) {}
 #endif
 
 #ifdef CONFIG_X86_ANCIENT_MCE
@@ -183,11 +191,11 @@ typedef DECLARE_BITMAP(mce_banks_t, MAX_NR_BANKS);
 DECLARE_PER_CPU(mce_banks_t, mce_poll_banks);
 
 enum mcp_flags {
-	MCP_TIMESTAMP = (1 << 0),	/* log time stamp */
-	MCP_UC = (1 << 1),		/* log uncorrected errors */
-	MCP_DONTLOG = (1 << 2),		/* only clear, don't log */
+	MCP_TIMESTAMP	= BIT(0),	/* log time stamp */
+	MCP_UC		= BIT(1),	/* log uncorrected errors */
+	MCP_DONTLOG	= BIT(2),	/* only clear, don't log */
 };
-void machine_check_poll(enum mcp_flags flags, mce_banks_t *b);
+bool machine_check_poll(enum mcp_flags flags, mce_banks_t *b);
 
 int mce_notify_irq(void);
 
diff --git a/arch/x86/include/asm/microcode.h b/arch/x86/include/asm/microcode.h
index 201b520..2fb20d6 100644
--- a/arch/x86/include/asm/microcode.h
+++ b/arch/x86/include/asm/microcode.h
@@ -75,6 +75,79 @@ static inline void __exit exit_amd_microcode(void) {}
 
 #ifdef CONFIG_MICROCODE_EARLY
 #define MAX_UCODE_COUNT 128
+
+#define QCHAR(a, b, c, d) ((a) + ((b) << 8) + ((c) << 16) + ((d) << 24))
+#define CPUID_INTEL1 QCHAR('G', 'e', 'n', 'u')
+#define CPUID_INTEL2 QCHAR('i', 'n', 'e', 'I')
+#define CPUID_INTEL3 QCHAR('n', 't', 'e', 'l')
+#define CPUID_AMD1 QCHAR('A', 'u', 't', 'h')
+#define CPUID_AMD2 QCHAR('e', 'n', 't', 'i')
+#define CPUID_AMD3 QCHAR('c', 'A', 'M', 'D')
+
+#define CPUID_IS(a, b, c, ebx, ecx, edx)	\
+		(!((ebx ^ (a))|(edx ^ (b))|(ecx ^ (c))))
+
+/*
+ * In early loading microcode phase on BSP, boot_cpu_data is not set up yet.
+ * x86_vendor() gets vendor id for BSP.
+ *
+ * In 32 bit AP case, accessing boot_cpu_data needs linear address. To simplify
+ * coding, we still use x86_vendor() to get vendor id for AP.
+ *
+ * x86_vendor() gets vendor information directly from CPUID.
+ */
+static inline int x86_vendor(void)
+{
+	u32 eax = 0x00000000;
+	u32 ebx, ecx = 0, edx;
+
+	native_cpuid(&eax, &ebx, &ecx, &edx);
+
+	if (CPUID_IS(CPUID_INTEL1, CPUID_INTEL2, CPUID_INTEL3, ebx, ecx, edx))
+		return X86_VENDOR_INTEL;
+
+	if (CPUID_IS(CPUID_AMD1, CPUID_AMD2, CPUID_AMD3, ebx, ecx, edx))
+		return X86_VENDOR_AMD;
+
+	return X86_VENDOR_UNKNOWN;
+}
+
+static inline unsigned int __x86_family(unsigned int sig)
+{
+	unsigned int x86;
+
+	x86 = (sig >> 8) & 0xf;
+
+	if (x86 == 0xf)
+		x86 += (sig >> 20) & 0xff;
+
+	return x86;
+}
+
+static inline unsigned int x86_family(void)
+{
+	u32 eax = 0x00000001;
+	u32 ebx, ecx = 0, edx;
+
+	native_cpuid(&eax, &ebx, &ecx, &edx);
+
+	return __x86_family(eax);
+}
+
+static inline unsigned int x86_model(unsigned int sig)
+{
+	unsigned int x86, model;
+
+	x86 = __x86_family(sig);
+
+	model = (sig >> 4) & 0xf;
+
+	if (x86 == 0x6 || x86 == 0xf)
+		model += ((sig >> 16) & 0xf) << 4;
+
+	return model;
+}
+
 extern void __init load_ucode_bsp(void);
 extern void load_ucode_ap(void);
 extern int __init save_microcode_in_initrd(void);
diff --git a/arch/x86/include/asm/microcode_intel.h b/arch/x86/include/asm/microcode_intel.h
index dd4c200..2b9209c 100644
--- a/arch/x86/include/asm/microcode_intel.h
+++ b/arch/x86/include/asm/microcode_intel.h
@@ -56,12 +56,15 @@ struct extended_sigtable {
 
 #define exttable_size(et) ((et)->count * EXT_SIGNATURE_SIZE + EXT_HEADER_SIZE)
 
-extern int
-get_matching_microcode(unsigned int csig, int cpf, void *mc, int rev);
+extern int get_matching_microcode(unsigned int csig, int cpf, int rev, void *mc);
 extern int microcode_sanity_check(void *mc, int print_err);
-extern int get_matching_sig(unsigned int csig, int cpf, void *mc, int rev);
-extern int
-update_match_revision(struct microcode_header_intel *mc_header, int rev);
+extern int get_matching_sig(unsigned int csig, int cpf, int rev, void *mc);
+
+static inline int
+revision_is_newer(struct microcode_header_intel *mc_header, int rev)
+{
+	return (mc_header->rev <= rev) ? 0 : 1;
+}
 
 #ifdef CONFIG_MICROCODE_INTEL_EARLY
 extern void __init load_ucode_intel_bsp(void);
diff --git a/arch/x86/include/asm/mwait.h b/arch/x86/include/asm/mwait.h
index a1410db..653dfa7 100644
--- a/arch/x86/include/asm/mwait.h
+++ b/arch/x86/include/asm/mwait.h
@@ -30,6 +30,14 @@ static inline void __mwait(unsigned long eax, unsigned long ecx)
 		     :: "a" (eax), "c" (ecx));
 }
 
+static inline void __sti_mwait(unsigned long eax, unsigned long ecx)
+{
+	trace_hardirqs_on();
+	/* "mwait %eax, %ecx;" */
+	asm volatile("sti; .byte 0x0f, 0x01, 0xc9;"
+		     :: "a" (eax), "c" (ecx));
+}
+
 /*
  * This uses new MONITOR/MWAIT instructions on P4 processors with PNI,
  * which can obviate IPI to trigger checking of need_resched.
diff --git a/arch/x86/include/asm/page_types.h b/arch/x86/include/asm/page_types.h
index 95e11f7..f97fbe3 100644
--- a/arch/x86/include/asm/page_types.h
+++ b/arch/x86/include/asm/page_types.h
@@ -51,8 +51,6 @@ extern int devmem_is_allowed(unsigned long pagenr);
 extern unsigned long max_low_pfn_mapped;
 extern unsigned long max_pfn_mapped;
 
-extern bool kaslr_enabled;
-
 static inline phys_addr_t get_max_mapped(void)
 {
 	return (phys_addr_t)max_pfn_mapped << PAGE_SHIFT;
diff --git a/arch/x86/include/asm/paravirt.h b/arch/x86/include/asm/paravirt.h
index 965c47d..5f6051d 100644
--- a/arch/x86/include/asm/paravirt.h
+++ b/arch/x86/include/asm/paravirt.h
@@ -976,11 +976,6 @@ extern void default_banner(void);
 	PARA_SITE(PARA_PATCH(pv_cpu_ops, PV_CPU_usergs_sysret64),	\
 		  CLBR_NONE,						\
 		  jmp PARA_INDIRECT(pv_cpu_ops+PV_CPU_usergs_sysret64))
-
-#define ENABLE_INTERRUPTS_SYSEXIT32					\
-	PARA_SITE(PARA_PATCH(pv_cpu_ops, PV_CPU_irq_enable_sysexit),	\
-		  CLBR_NONE,						\
-		  jmp PARA_INDIRECT(pv_cpu_ops+PV_CPU_irq_enable_sysexit))
 #endif	/* CONFIG_X86_32 */
 
 #endif /* __ASSEMBLY__ */
diff --git a/arch/x86/include/asm/pci_x86.h b/arch/x86/include/asm/pci_x86.h
index fa1195d..164e3f8 100644
--- a/arch/x86/include/asm/pci_x86.h
+++ b/arch/x86/include/asm/pci_x86.h
@@ -93,6 +93,8 @@ extern raw_spinlock_t pci_config_lock;
 extern int (*pcibios_enable_irq)(struct pci_dev *dev);
 extern void (*pcibios_disable_irq)(struct pci_dev *dev);
 
+extern bool mp_should_keep_irq(struct device *dev);
+
 struct pci_raw_ops {
 	int (*read)(unsigned int domain, unsigned int bus, unsigned int devfn,
 						int reg, int len, u32 *val);
diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h
index ec1c935..d2203b5 100644
--- a/arch/x86/include/asm/processor.h
+++ b/arch/x86/include/asm/processor.h
@@ -210,8 +210,23 @@ struct x86_hw_tss {
 	unsigned long		sp0;
 	unsigned short		ss0, __ss0h;
 	unsigned long		sp1;
-	/* ss1 caches MSR_IA32_SYSENTER_CS: */
-	unsigned short		ss1, __ss1h;
+
+	/*
+	 * We don't use ring 1, so ss1 is a convenient scratch space in
+	 * the same cacheline as sp0.  We use ss1 to cache the value in
+	 * MSR_IA32_SYSENTER_CS.  When we context switch
+	 * MSR_IA32_SYSENTER_CS, we first check if the new value being
+	 * written matches ss1, and, if it's not, then we wrmsr the new
+	 * value and update ss1.
+	 *
+	 * The only reason we context switch MSR_IA32_SYSENTER_CS is
+	 * that we set it to zero in vm86 tasks to avoid corrupting the
+	 * stack if we were to go through the sysenter path from vm86
+	 * mode.
+	 */
+	unsigned short		ss1;	/* MSR_IA32_SYSENTER_CS */
+
+	unsigned short		__ss1h;
 	unsigned long		sp2;
 	unsigned short		ss2, __ss2h;
 	unsigned long		__cr3;
@@ -276,13 +291,17 @@ struct tss_struct {
 	unsigned long		io_bitmap[IO_BITMAP_LONGS + 1];
 
 	/*
-	 * .. and then another 0x100 bytes for the emergency kernel stack:
+	 * Space for the temporary SYSENTER stack:
 	 */
-	unsigned long		stack[64];
+	unsigned long		SYSENTER_stack[64];
 
 } ____cacheline_aligned;
 
-DECLARE_PER_CPU_SHARED_ALIGNED(struct tss_struct, init_tss);
+DECLARE_PER_CPU_SHARED_ALIGNED(struct tss_struct, cpu_tss);
+
+#ifdef CONFIG_X86_32
+DECLARE_PER_CPU(unsigned long, cpu_current_top_of_stack);
+#endif
 
 /*
  * Save the original ist values for checking stack pointers during debugging
@@ -474,7 +493,6 @@ struct thread_struct {
 #ifdef CONFIG_X86_32
 	unsigned long		sysenter_cs;
 #else
-	unsigned long		usersp;	/* Copy from PDA */
 	unsigned short		es;
 	unsigned short		ds;
 	unsigned short		fsindex;
@@ -564,6 +582,16 @@ static inline void native_swapgs(void)
 #endif
 }
 
+static inline unsigned long current_top_of_stack(void)
+{
+#ifdef CONFIG_X86_64
+	return this_cpu_read_stable(cpu_tss.x86_tss.sp0);
+#else
+	/* sp0 on x86_32 is special in and around vm86 mode. */
+	return this_cpu_read_stable(cpu_current_top_of_stack);
+#endif
+}
+
 #ifdef CONFIG_PARAVIRT
 #include <asm/paravirt.h>
 #else
@@ -761,10 +789,10 @@ extern char			ignore_fpu_irq;
 #define ARCH_HAS_SPINLOCK_PREFETCH
 
 #ifdef CONFIG_X86_32
-# define BASE_PREFETCH		ASM_NOP4
+# define BASE_PREFETCH		""
 # define ARCH_HAS_PREFETCH
 #else
-# define BASE_PREFETCH		"prefetcht0 (%1)"
+# define BASE_PREFETCH		"prefetcht0 %P1"
 #endif
 
 /*
@@ -775,10 +803,9 @@ extern char			ignore_fpu_irq;
  */
 static inline void prefetch(const void *x)
 {
-	alternative_input(BASE_PREFETCH,
-			  "prefetchnta (%1)",
+	alternative_input(BASE_PREFETCH, "prefetchnta %P1",
 			  X86_FEATURE_XMM,
-			  "r" (x));
+			  "m" (*(const char *)x));
 }
 
 /*
@@ -788,10 +815,9 @@ static inline void prefetch(const void *x)
  */
 static inline void prefetchw(const void *x)
 {
-	alternative_input(BASE_PREFETCH,
-			  "prefetchw (%1)",
-			  X86_FEATURE_3DNOW,
-			  "r" (x));
+	alternative_input(BASE_PREFETCH, "prefetchw %P1",
+			  X86_FEATURE_3DNOWPREFETCH,
+			  "m" (*(const char *)x));
 }
 
 static inline void spin_lock_prefetch(const void *x)
@@ -799,6 +825,9 @@ static inline void spin_lock_prefetch(const void *x)
 	prefetchw(x);
 }
 
+#define TOP_OF_INIT_STACK ((unsigned long)&init_stack + sizeof(init_stack) - \
+			   TOP_OF_KERNEL_STACK_PADDING)
+
 #ifdef CONFIG_X86_32
 /*
  * User space process size: 3GB (default).
@@ -809,39 +838,16 @@ static inline void spin_lock_prefetch(const void *x)
 #define STACK_TOP_MAX		STACK_TOP
 
 #define INIT_THREAD  {							  \
-	.sp0			= sizeof(init_stack) + (long)&init_stack, \
+	.sp0			= TOP_OF_INIT_STACK,			  \
 	.vm86_info		= NULL,					  \
 	.sysenter_cs		= __KERNEL_CS,				  \
 	.io_bitmap_ptr		= NULL,					  \
 }
 
-/*
- * Note that the .io_bitmap member must be extra-big. This is because
- * the CPU will access an additional byte beyond the end of the IO
- * permission bitmap. The extra byte must be all 1 bits, and must
- * be within the limit.
- */
-#define INIT_TSS  {							  \
-	.x86_tss = {							  \
-		.sp0		= sizeof(init_stack) + (long)&init_stack, \
-		.ss0		= __KERNEL_DS,				  \
-		.ss1		= __KERNEL_CS,				  \
-		.io_bitmap_base	= INVALID_IO_BITMAP_OFFSET,		  \
-	 },								  \
-	.io_bitmap		= { [0 ... IO_BITMAP_LONGS] = ~0 },	  \
-}
-
 extern unsigned long thread_saved_pc(struct task_struct *tsk);
 
-#define THREAD_SIZE_LONGS      (THREAD_SIZE/sizeof(unsigned long))
-#define KSTK_TOP(info)                                                 \
-({                                                                     \
-       unsigned long *__ptr = (unsigned long *)(info);                 \
-       (unsigned long)(&__ptr[THREAD_SIZE_LONGS]);                     \
-})
-
 /*
- * The below -8 is to reserve 8 bytes on top of the ring0 stack.
+ * TOP_OF_KERNEL_STACK_PADDING reserves 8 bytes on top of the ring0 stack.
  * This is necessary to guarantee that the entire "struct pt_regs"
  * is accessible even if the CPU haven't stored the SS/ESP registers
  * on the stack (interrupt gate does not save these registers
@@ -850,11 +856,11 @@ extern unsigned long thread_saved_pc(struct task_struct *tsk);
  * "struct pt_regs" is possible, but they may contain the
  * completely wrong values.
  */
-#define task_pt_regs(task)                                             \
-({                                                                     \
-       struct pt_regs *__regs__;                                       \
-       __regs__ = (struct pt_regs *)(KSTK_TOP(task_stack_page(task))-8); \
-       __regs__ - 1;                                                   \
+#define task_pt_regs(task) \
+({									\
+	unsigned long __ptr = (unsigned long)task_stack_page(task);	\
+	__ptr += THREAD_SIZE - TOP_OF_KERNEL_STACK_PADDING;		\
+	((struct pt_regs *)__ptr) - 1;					\
 })
 
 #define KSTK_ESP(task)		(task_pt_regs(task)->sp)
@@ -886,11 +892,7 @@ extern unsigned long thread_saved_pc(struct task_struct *tsk);
 #define STACK_TOP_MAX		TASK_SIZE_MAX
 
 #define INIT_THREAD  { \
-	.sp0 = (unsigned long)&init_stack + sizeof(init_stack) \
-}
-
-#define INIT_TSS  { \
-	.x86_tss.sp0 = (unsigned long)&init_stack + sizeof(init_stack) \
+	.sp0 = TOP_OF_INIT_STACK \
 }
 
 /*
@@ -902,11 +904,6 @@ extern unsigned long thread_saved_pc(struct task_struct *tsk);
 #define task_pt_regs(tsk)	((struct pt_regs *)(tsk)->thread.sp0 - 1)
 extern unsigned long KSTK_ESP(struct task_struct *task);
 
-/*
- * User space RSP while inside the SYSCALL fast path
- */
-DECLARE_PER_CPU(unsigned long, old_rsp);
-
 #endif /* CONFIG_X86_64 */
 
 extern void start_thread(struct pt_regs *regs, unsigned long new_ip,
diff --git a/arch/x86/include/asm/ptrace.h b/arch/x86/include/asm/ptrace.h
index 86fc2bb..19507ff 100644
--- a/arch/x86/include/asm/ptrace.h
+++ b/arch/x86/include/asm/ptrace.h
@@ -31,13 +31,17 @@ struct pt_regs {
 #else /* __i386__ */
 
 struct pt_regs {
+/*
+ * C ABI says these regs are callee-preserved. They aren't saved on kernel entry
+ * unless syscall needs a complete, fully filled "struct pt_regs".
+ */
 	unsigned long r15;
 	unsigned long r14;
 	unsigned long r13;
 	unsigned long r12;
 	unsigned long bp;
 	unsigned long bx;
-/* arguments: non interrupts/non tracing syscalls only save up to here*/
+/* These regs are callee-clobbered. Always saved on kernel entry. */
 	unsigned long r11;
 	unsigned long r10;
 	unsigned long r9;
@@ -47,9 +51,12 @@ struct pt_regs {
 	unsigned long dx;
 	unsigned long si;
 	unsigned long di;
+/*
+ * On syscall entry, this is syscall#. On CPU exception, this is error code.
+ * On hw interrupt, it's IRQ number:
+ */
 	unsigned long orig_ax;
-/* end of arguments */
-/* cpu exception frame or undefined */
+/* Return frame for iretq */
 	unsigned long ip;
 	unsigned long cs;
 	unsigned long flags;
@@ -89,11 +96,13 @@ static inline unsigned long regs_return_value(struct pt_regs *regs)
 }
 
 /*
- * user_mode_vm(regs) determines whether a register set came from user mode.
- * This is true if V8086 mode was enabled OR if the register set was from
- * protected mode with RPL-3 CS value.  This tricky test checks that with
- * one comparison.  Many places in the kernel can bypass this full check
- * if they have already ruled out V8086 mode, so user_mode(regs) can be used.
+ * user_mode(regs) determines whether a register set came from user
+ * mode.  On x86_32, this is true if V8086 mode was enabled OR if the
+ * register set was from protected mode with RPL-3 CS value.  This
+ * tricky test checks that with one comparison.
+ *
+ * On x86_64, vm86 mode is mercifully nonexistent, and we don't need
+ * the extra check.
  */
 static inline int user_mode(struct pt_regs *regs)
 {
@@ -104,16 +113,6 @@ static inline int user_mode(struct pt_regs *regs)
 #endif
 }
 
-static inline int user_mode_vm(struct pt_regs *regs)
-{
-#ifdef CONFIG_X86_32
-	return ((regs->cs & SEGMENT_RPL_MASK) | (regs->flags & X86_VM_MASK)) >=
-		USER_RPL;
-#else
-	return user_mode(regs);
-#endif
-}
-
 static inline int v8086_mode(struct pt_regs *regs)
 {
 #ifdef CONFIG_X86_32
@@ -138,12 +137,8 @@ static inline bool user_64bit_mode(struct pt_regs *regs)
 #endif
 }
 
-#define current_user_stack_pointer()	this_cpu_read(old_rsp)
-/* ia32 vs. x32 difference */
-#define compat_user_stack_pointer()	\
-	(test_thread_flag(TIF_IA32) 	\
-	 ? current_pt_regs()->sp 	\
-	 : this_cpu_read(old_rsp))
+#define current_user_stack_pointer()	current_pt_regs()->sp
+#define compat_user_stack_pointer()	current_pt_regs()->sp
 #endif
 
 #ifdef CONFIG_X86_32
@@ -248,7 +243,7 @@ static inline unsigned long regs_get_kernel_stack_nth(struct pt_regs *regs,
  */
 #define arch_ptrace_stop_needed(code, info)				\
 ({									\
-	set_thread_flag(TIF_NOTIFY_RESUME);				\
+	force_iret();							\
 	false;								\
 })
 
diff --git a/arch/x86/include/asm/pvclock.h b/arch/x86/include/asm/pvclock.h
index d6b078e..25b1cc0 100644
--- a/arch/x86/include/asm/pvclock.h
+++ b/arch/x86/include/asm/pvclock.h
@@ -95,6 +95,7 @@ unsigned __pvclock_read_cycles(const struct pvclock_vcpu_time_info *src,
 
 struct pvclock_vsyscall_time_info {
 	struct pvclock_vcpu_time_info pvti;
+	u32 migrate_count;
 } __attribute__((__aligned__(SMP_CACHE_BYTES)));
 
 #define PVTI_SIZE sizeof(struct pvclock_vsyscall_time_info)
diff --git a/arch/x86/include/asm/segment.h b/arch/x86/include/asm/segment.h
index db257a5..5a9856e 100644
--- a/arch/x86/include/asm/segment.h
+++ b/arch/x86/include/asm/segment.h
@@ -3,8 +3,10 @@
 
 #include <linux/const.h>
 
-/* Constructor for a conventional segment GDT (or LDT) entry */
-/* This is a macro so it can be used in initializers */
+/*
+ * Constructor for a conventional segment GDT (or LDT) entry.
+ * This is a macro so it can be used in initializers.
+ */
 #define GDT_ENTRY(flags, base, limit)			\
 	((((base)  & _AC(0xff000000,ULL)) << (56-24)) |	\
 	 (((flags) & _AC(0x0000f0ff,ULL)) << 40) |	\
@@ -12,198 +14,228 @@
 	 (((base)  & _AC(0x00ffffff,ULL)) << 16) |	\
 	 (((limit) & _AC(0x0000ffff,ULL))))
 
-/* Simple and small GDT entries for booting only */
+/* Simple and small GDT entries for booting only: */
 
 #define GDT_ENTRY_BOOT_CS	2
-#define __BOOT_CS		(GDT_ENTRY_BOOT_CS * 8)
+#define GDT_ENTRY_BOOT_DS	3
+#define GDT_ENTRY_BOOT_TSS	4
+#define __BOOT_CS		(GDT_ENTRY_BOOT_CS*8)
+#define __BOOT_DS		(GDT_ENTRY_BOOT_DS*8)
+#define __BOOT_TSS		(GDT_ENTRY_BOOT_TSS*8)
+
+/*
+ * Bottom two bits of selector give the ring
+ * privilege level
+ */
+#define SEGMENT_RPL_MASK	0x3
 
-#define GDT_ENTRY_BOOT_DS	(GDT_ENTRY_BOOT_CS + 1)
-#define __BOOT_DS		(GDT_ENTRY_BOOT_DS * 8)
+/* User mode is privilege level 3: */
+#define USER_RPL		0x3
 
-#define GDT_ENTRY_BOOT_TSS	(GDT_ENTRY_BOOT_CS + 2)
-#define __BOOT_TSS		(GDT_ENTRY_BOOT_TSS * 8)
+/* Bit 2 is Table Indicator (TI): selects between LDT or GDT */
+#define SEGMENT_TI_MASK		0x4
+/* LDT segment has TI set ... */
+#define SEGMENT_LDT		0x4
+/* ... GDT has it cleared */
+#define SEGMENT_GDT		0x0
 
-#define SEGMENT_RPL_MASK	0x3 /*
-				     * Bottom two bits of selector give the ring
-				     * privilege level
-				     */
-#define SEGMENT_TI_MASK		0x4 /* Bit 2 is table indicator (LDT/GDT) */
-#define USER_RPL		0x3 /* User mode is privilege level 3 */
-#define SEGMENT_LDT		0x4 /* LDT segment has TI set... */
-#define SEGMENT_GDT		0x0 /* ... GDT has it cleared */
+#define GDT_ENTRY_INVALID_SEG	0
 
 #ifdef CONFIG_X86_32
 /*
  * The layout of the per-CPU GDT under Linux:
  *
- *   0 - null
+ *   0 - null								<=== cacheline #1
  *   1 - reserved
  *   2 - reserved
  *   3 - reserved
  *
- *   4 - unused			<==== new cacheline
+ *   4 - unused								<=== cacheline #2
  *   5 - unused
  *
  *  ------- start of TLS (Thread-Local Storage) segments:
  *
  *   6 - TLS segment #1			[ glibc's TLS segment ]
  *   7 - TLS segment #2			[ Wine's %fs Win32 segment ]
- *   8 - TLS segment #3
+ *   8 - TLS segment #3							<=== cacheline #3
  *   9 - reserved
  *  10 - reserved
  *  11 - reserved
  *
  *  ------- start of kernel segments:
  *
- *  12 - kernel code segment		<==== new cacheline
+ *  12 - kernel code segment						<=== cacheline #4
  *  13 - kernel data segment
  *  14 - default user CS
  *  15 - default user DS
- *  16 - TSS
+ *  16 - TSS								<=== cacheline #5
  *  17 - LDT
  *  18 - PNPBIOS support (16->32 gate)
  *  19 - PNPBIOS support
- *  20 - PNPBIOS support
+ *  20 - PNPBIOS support						<=== cacheline #6
  *  21 - PNPBIOS support
  *  22 - PNPBIOS support
  *  23 - APM BIOS support
- *  24 - APM BIOS support
+ *  24 - APM BIOS support						<=== cacheline #7
  *  25 - APM BIOS support
  *
  *  26 - ESPFIX small SS
  *  27 - per-cpu			[ offset to per-cpu data area ]
- *  28 - stack_canary-20		[ for stack protector ]
+ *  28 - stack_canary-20		[ for stack protector ]		<=== cacheline #8
  *  29 - unused
  *  30 - unused
  *  31 - TSS for double fault handler
  */
-#define GDT_ENTRY_TLS_MIN	6
-#define GDT_ENTRY_TLS_MAX 	(GDT_ENTRY_TLS_MIN + GDT_ENTRY_TLS_ENTRIES - 1)
+#define GDT_ENTRY_TLS_MIN		6
+#define GDT_ENTRY_TLS_MAX 		(GDT_ENTRY_TLS_MIN + GDT_ENTRY_TLS_ENTRIES - 1)
 
+#define GDT_ENTRY_KERNEL_CS		12
+#define GDT_ENTRY_KERNEL_DS		13
 #define GDT_ENTRY_DEFAULT_USER_CS	14
-
 #define GDT_ENTRY_DEFAULT_USER_DS	15
+#define GDT_ENTRY_TSS			16
+#define GDT_ENTRY_LDT			17
+#define GDT_ENTRY_PNPBIOS_CS32		18
+#define GDT_ENTRY_PNPBIOS_CS16		19
+#define GDT_ENTRY_PNPBIOS_DS		20
+#define GDT_ENTRY_PNPBIOS_TS1		21
+#define GDT_ENTRY_PNPBIOS_TS2		22
+#define GDT_ENTRY_APMBIOS_BASE		23
+
+#define GDT_ENTRY_ESPFIX_SS		26
+#define GDT_ENTRY_PERCPU		27
+#define GDT_ENTRY_STACK_CANARY		28
+
+#define GDT_ENTRY_DOUBLEFAULT_TSS	31
 
-#define GDT_ENTRY_KERNEL_BASE		(12)
+/*
+ * Number of entries in the GDT table:
+ */
+#define GDT_ENTRIES			32
 
-#define GDT_ENTRY_KERNEL_CS		(GDT_ENTRY_KERNEL_BASE+0)
+/*
+ * Segment selector values corresponding to the above entries:
+ */
 
-#define GDT_ENTRY_KERNEL_DS		(GDT_ENTRY_KERNEL_BASE+1)
+#define __KERNEL_CS			(GDT_ENTRY_KERNEL_CS*8)
+#define __KERNEL_DS			(GDT_ENTRY_KERNEL_DS*8)
+#define __USER_DS			(GDT_ENTRY_DEFAULT_USER_DS*8 + 3)
+#define __USER_CS			(GDT_ENTRY_DEFAULT_USER_CS*8 + 3)
+#define __ESPFIX_SS			(GDT_ENTRY_ESPFIX_SS*8)
 
-#define GDT_ENTRY_TSS			(GDT_ENTRY_KERNEL_BASE+4)
-#define GDT_ENTRY_LDT			(GDT_ENTRY_KERNEL_BASE+5)
+/* segment for calling fn: */
+#define PNP_CS32			(GDT_ENTRY_PNPBIOS_CS32*8)
+/* code segment for BIOS: */
+#define PNP_CS16			(GDT_ENTRY_PNPBIOS_CS16*8)
 
-#define GDT_ENTRY_PNPBIOS_BASE		(GDT_ENTRY_KERNEL_BASE+6)
-#define GDT_ENTRY_APMBIOS_BASE		(GDT_ENTRY_KERNEL_BASE+11)
+/* "Is this PNP code selector (PNP_CS32 or PNP_CS16)?" */
+#define SEGMENT_IS_PNP_CODE(x)		(((x) & 0xf4) == PNP_CS32)
 
-#define GDT_ENTRY_ESPFIX_SS		(GDT_ENTRY_KERNEL_BASE+14)
-#define __ESPFIX_SS			(GDT_ENTRY_ESPFIX_SS*8)
+/* data segment for BIOS: */
+#define PNP_DS				(GDT_ENTRY_PNPBIOS_DS*8)
+/* transfer data segment: */
+#define PNP_TS1				(GDT_ENTRY_PNPBIOS_TS1*8)
+/* another data segment: */
+#define PNP_TS2				(GDT_ENTRY_PNPBIOS_TS2*8)
 
-#define GDT_ENTRY_PERCPU		(GDT_ENTRY_KERNEL_BASE+15)
 #ifdef CONFIG_SMP
-#define __KERNEL_PERCPU (GDT_ENTRY_PERCPU * 8)
+# define __KERNEL_PERCPU		(GDT_ENTRY_PERCPU*8)
 #else
-#define __KERNEL_PERCPU 0
+# define __KERNEL_PERCPU		0
 #endif
 
-#define GDT_ENTRY_STACK_CANARY		(GDT_ENTRY_KERNEL_BASE+16)
 #ifdef CONFIG_CC_STACKPROTECTOR
-#define __KERNEL_STACK_CANARY		(GDT_ENTRY_STACK_CANARY*8)
+# define __KERNEL_STACK_CANARY		(GDT_ENTRY_STACK_CANARY*8)
 #else
-#define __KERNEL_STACK_CANARY		0
+# define __KERNEL_STACK_CANARY		0
 #endif
 
-#define GDT_ENTRY_DOUBLEFAULT_TSS	31
-
-/*
- * The GDT has 32 entries
- */
-#define GDT_ENTRIES 32
+#else /* 64-bit: */
 
-/* The PnP BIOS entries in the GDT */
-#define GDT_ENTRY_PNPBIOS_CS32		(GDT_ENTRY_PNPBIOS_BASE + 0)
-#define GDT_ENTRY_PNPBIOS_CS16		(GDT_ENTRY_PNPBIOS_BASE + 1)
-#define GDT_ENTRY_PNPBIOS_DS		(GDT_ENTRY_PNPBIOS_BASE + 2)
-#define GDT_ENTRY_PNPBIOS_TS1		(GDT_ENTRY_PNPBIOS_BASE + 3)
-#define GDT_ENTRY_PNPBIOS_TS2		(GDT_ENTRY_PNPBIOS_BASE + 4)
-
-/* The PnP BIOS selectors */
-#define PNP_CS32   (GDT_ENTRY_PNPBIOS_CS32 * 8)	/* segment for calling fn */
-#define PNP_CS16   (GDT_ENTRY_PNPBIOS_CS16 * 8)	/* code segment for BIOS */
-#define PNP_DS     (GDT_ENTRY_PNPBIOS_DS * 8)	/* data segment for BIOS */
-#define PNP_TS1    (GDT_ENTRY_PNPBIOS_TS1 * 8)	/* transfer data segment */
-#define PNP_TS2    (GDT_ENTRY_PNPBIOS_TS2 * 8)	/* another data segment */
+#include <asm/cache.h>
 
+#define GDT_ENTRY_KERNEL32_CS		1
+#define GDT_ENTRY_KERNEL_CS		2
+#define GDT_ENTRY_KERNEL_DS		3
 
 /*
- * Matching rules for certain types of segments.
+ * We cannot use the same code segment descriptor for user and kernel mode,
+ * not even in long flat mode, because of different DPL.
+ *
+ * GDT layout to get 64-bit SYSCALL/SYSRET support right. SYSRET hardcodes
+ * selectors:
+ *
+ *   if returning to 32-bit userspace: cs = STAR.SYSRET_CS,
+ *   if returning to 64-bit userspace: cs = STAR.SYSRET_CS+16,
+ *
+ * ss = STAR.SYSRET_CS+8 (in either case)
+ *
+ * thus USER_DS should be between 32-bit and 64-bit code selectors:
  */
+#define GDT_ENTRY_DEFAULT_USER32_CS	4
+#define GDT_ENTRY_DEFAULT_USER_DS	5
+#define GDT_ENTRY_DEFAULT_USER_CS	6
 
-/* Matches PNP_CS32 and PNP_CS16 (they must be consecutive) */
-#define SEGMENT_IS_PNP_CODE(x)   (((x) & 0xf4) == GDT_ENTRY_PNPBIOS_BASE * 8)
-
+/* Needs two entries */
+#define GDT_ENTRY_TSS			8
+/* Needs two entries */
+#define GDT_ENTRY_LDT			10
 
-#else
-#include <asm/cache.h>
-
-#define GDT_ENTRY_KERNEL32_CS 1
-#define GDT_ENTRY_KERNEL_CS 2
-#define GDT_ENTRY_KERNEL_DS 3
+#define GDT_ENTRY_TLS_MIN		12
+#define GDT_ENTRY_TLS_MAX		14
 
-#define __KERNEL32_CS   (GDT_ENTRY_KERNEL32_CS * 8)
+/* Abused to load per CPU data from limit */
+#define GDT_ENTRY_PER_CPU		15
 
 /*
- * we cannot use the same code segment descriptor for user and kernel
- * -- not even in the long flat mode, because of different DPL /kkeil
- * The segment offset needs to contain a RPL. Grr. -AK
- * GDT layout to get 64bit syscall right (sysret hardcodes gdt offsets)
+ * Number of entries in the GDT table:
  */
-#define GDT_ENTRY_DEFAULT_USER32_CS 4
-#define GDT_ENTRY_DEFAULT_USER_DS 5
-#define GDT_ENTRY_DEFAULT_USER_CS 6
-#define __USER32_CS   (GDT_ENTRY_DEFAULT_USER32_CS*8+3)
-#define __USER32_DS	__USER_DS
-
-#define GDT_ENTRY_TSS 8	/* needs two entries */
-#define GDT_ENTRY_LDT 10 /* needs two entries */
-#define GDT_ENTRY_TLS_MIN 12
-#define GDT_ENTRY_TLS_MAX 14
-
-#define GDT_ENTRY_PER_CPU 15	/* Abused to load per CPU data from limit */
-#define __PER_CPU_SEG	(GDT_ENTRY_PER_CPU * 8 + 3)
+#define GDT_ENTRIES			16
 
-/* TLS indexes for 64bit - hardcoded in arch_prctl */
-#define FS_TLS 0
-#define GS_TLS 1
-
-#define GS_TLS_SEL ((GDT_ENTRY_TLS_MIN+GS_TLS)*8 + 3)
-#define FS_TLS_SEL ((GDT_ENTRY_TLS_MIN+FS_TLS)*8 + 3)
-
-#define GDT_ENTRIES 16
+/*
+ * Segment selector values corresponding to the above entries:
+ *
+ * Note, selectors also need to have a correct RPL,
+ * expressed with the +3 value for user-space selectors:
+ */
+#define __KERNEL32_CS			(GDT_ENTRY_KERNEL32_CS*8)
+#define __KERNEL_CS			(GDT_ENTRY_KERNEL_CS*8)
+#define __KERNEL_DS			(GDT_ENTRY_KERNEL_DS*8)
+#define __USER32_CS			(GDT_ENTRY_DEFAULT_USER32_CS*8 + 3)
+#define __USER_DS			(GDT_ENTRY_DEFAULT_USER_DS*8 + 3)
+#define __USER32_DS			__USER_DS
+#define __USER_CS			(GDT_ENTRY_DEFAULT_USER_CS*8 + 3)
+#define __PER_CPU_SEG			(GDT_ENTRY_PER_CPU*8 + 3)
+
+/* TLS indexes for 64-bit - hardcoded in arch_prctl(): */
+#define FS_TLS				0
+#define GS_TLS				1
+
+#define GS_TLS_SEL			((GDT_ENTRY_TLS_MIN+GS_TLS)*8 + 3)
+#define FS_TLS_SEL			((GDT_ENTRY_TLS_MIN+FS_TLS)*8 + 3)
 
 #endif
 
-#define __KERNEL_CS	(GDT_ENTRY_KERNEL_CS*8)
-#define __KERNEL_DS	(GDT_ENTRY_KERNEL_DS*8)
-#define __USER_DS	(GDT_ENTRY_DEFAULT_USER_DS*8+3)
-#define __USER_CS	(GDT_ENTRY_DEFAULT_USER_CS*8+3)
 #ifndef CONFIG_PARAVIRT
-#define get_kernel_rpl()  0
+# define get_kernel_rpl()		0
 #endif
 
-#define IDT_ENTRIES 256
-#define NUM_EXCEPTION_VECTORS 32
-/* Bitmask of exception vectors which push an error code on the stack */
-#define EXCEPTION_ERRCODE_MASK  0x00027d00
-#define GDT_SIZE (GDT_ENTRIES * 8)
-#define GDT_ENTRY_TLS_ENTRIES 3
-#define TLS_SIZE (GDT_ENTRY_TLS_ENTRIES * 8)
+#define IDT_ENTRIES			256
+#define NUM_EXCEPTION_VECTORS		32
+
+/* Bitmask of exception vectors which push an error code on the stack: */
+#define EXCEPTION_ERRCODE_MASK		0x00027d00
+
+#define GDT_SIZE			(GDT_ENTRIES*8)
+#define GDT_ENTRY_TLS_ENTRIES		3
+#define TLS_SIZE			(GDT_ENTRY_TLS_ENTRIES* 8)
 
 #ifdef __KERNEL__
 #ifndef __ASSEMBLY__
+
 extern const char early_idt_handlers[NUM_EXCEPTION_VECTORS][2+2+5];
 #ifdef CONFIG_TRACING
-#define trace_early_idt_handlers early_idt_handlers
+# define trace_early_idt_handlers early_idt_handlers
 #endif
 
 /*
@@ -228,37 +260,30 @@ do {									\
 } while (0)
 
 /*
- * Save a segment register away
+ * Save a segment register away:
  */
 #define savesegment(seg, value)				\
 	asm("mov %%" #seg ",%0":"=r" (value) : : "memory")
 
 /*
- * x86_32 user gs accessors.
+ * x86-32 user GS accessors:
  */
 #ifdef CONFIG_X86_32
-#ifdef CONFIG_X86_32_LAZY_GS
-#define get_user_gs(regs)	(u16)({unsigned long v; savesegment(gs, v); v;})
-#define set_user_gs(regs, v)	loadsegment(gs, (unsigned long)(v))
-#define task_user_gs(tsk)	((tsk)->thread.gs)
-#define lazy_save_gs(v)		savesegment(gs, (v))
-#define lazy_load_gs(v)		loadsegment(gs, (v))
-#else	/* X86_32_LAZY_GS */
-#define get_user_gs(regs)	(u16)((regs)->gs)
-#define set_user_gs(regs, v)	do { (regs)->gs = (v); } while (0)
-#define task_user_gs(tsk)	(task_pt_regs(tsk)->gs)
-#define lazy_save_gs(v)		do { } while (0)
-#define lazy_load_gs(v)		do { } while (0)
-#endif	/* X86_32_LAZY_GS */
+# ifdef CONFIG_X86_32_LAZY_GS
+#  define get_user_gs(regs)		(u16)({ unsigned long v; savesegment(gs, v); v; })
+#  define set_user_gs(regs, v)		loadsegment(gs, (unsigned long)(v))
+#  define task_user_gs(tsk)		((tsk)->thread.gs)
+#  define lazy_save_gs(v)		savesegment(gs, (v))
+#  define lazy_load_gs(v)		loadsegment(gs, (v))
+# else	/* X86_32_LAZY_GS */
+#  define get_user_gs(regs)		(u16)((regs)->gs)
+#  define set_user_gs(regs, v)		do { (regs)->gs = (v); } while (0)
+#  define task_user_gs(tsk)		(task_pt_regs(tsk)->gs)
+#  define lazy_save_gs(v)		do { } while (0)
+#  define lazy_load_gs(v)		do { } while (0)
+# endif	/* X86_32_LAZY_GS */
 #endif	/* X86_32 */
 
-static inline unsigned long get_limit(unsigned long segment)
-{
-	unsigned long __limit;
-	asm("lsll %1,%0" : "=r" (__limit) : "r" (segment));
-	return __limit + 1;
-}
-
 #endif /* !__ASSEMBLY__ */
 #endif /* __KERNEL__ */
 
diff --git a/arch/x86/include/asm/setup.h b/arch/x86/include/asm/setup.h
index ff4e7b2..f69e06b 100644
--- a/arch/x86/include/asm/setup.h
+++ b/arch/x86/include/asm/setup.h
@@ -66,6 +66,11 @@ static inline void x86_ce4100_early_setup(void) { }
  */
 extern struct boot_params boot_params;
 
+static inline bool kaslr_enabled(void)
+{
+	return !!(boot_params.hdr.loadflags & KASLR_FLAG);
+}
+
 /*
  * Do NOT EVER look at the BIOS memory size location.
  * It does not work on many machines.
diff --git a/arch/x86/include/asm/sigcontext.h b/arch/x86/include/asm/sigcontext.h
index 9dfce4e..6fe6b18 100644
--- a/arch/x86/include/asm/sigcontext.h
+++ b/arch/x86/include/asm/sigcontext.h
@@ -57,9 +57,9 @@ struct sigcontext {
 	unsigned long ip;
 	unsigned long flags;
 	unsigned short cs;
-	unsigned short gs;
-	unsigned short fs;
-	unsigned short __pad0;
+	unsigned short __pad2;	/* Was called gs, but was always zero. */
+	unsigned short __pad1;	/* Was called fs, but was always zero. */
+	unsigned short ss;
 	unsigned long err;
 	unsigned long trapno;
 	unsigned long oldmask;
diff --git a/arch/x86/include/asm/sighandling.h b/arch/x86/include/asm/sighandling.h
index 7a95816..89db467 100644
--- a/arch/x86/include/asm/sighandling.h
+++ b/arch/x86/include/asm/sighandling.h
@@ -13,9 +13,7 @@
 			 X86_EFLAGS_CF | X86_EFLAGS_RF)
 
 void signal_fault(struct pt_regs *regs, void __user *frame, char *where);
-
-int restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc,
-		       unsigned long *pax);
+int restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc);
 int setup_sigcontext(struct sigcontext __user *sc, void __user *fpstate,
 		     struct pt_regs *regs, unsigned long mask);
 
diff --git a/arch/x86/include/asm/smap.h b/arch/x86/include/asm/smap.h
index 8d3120f..ba665eb 100644
--- a/arch/x86/include/asm/smap.h
+++ b/arch/x86/include/asm/smap.h
@@ -27,23 +27,11 @@
 
 #ifdef CONFIG_X86_SMAP
 
-#define ASM_CLAC							\
-	661: ASM_NOP3 ;							\
-	.pushsection .altinstr_replacement, "ax" ;			\
-	662: __ASM_CLAC ;						\
-	.popsection ;							\
-	.pushsection .altinstructions, "a" ;				\
-	altinstruction_entry 661b, 662b, X86_FEATURE_SMAP, 3, 3 ;	\
-	.popsection
-
-#define ASM_STAC							\
-	661: ASM_NOP3 ;							\
-	.pushsection .altinstr_replacement, "ax" ;			\
-	662: __ASM_STAC ;						\
-	.popsection ;							\
-	.pushsection .altinstructions, "a" ;				\
-	altinstruction_entry 661b, 662b, X86_FEATURE_SMAP, 3, 3 ;	\
-	.popsection
+#define ASM_CLAC \
+	ALTERNATIVE "", __stringify(__ASM_CLAC), X86_FEATURE_SMAP
+
+#define ASM_STAC \
+	ALTERNATIVE "", __stringify(__ASM_STAC), X86_FEATURE_SMAP
 
 #else /* CONFIG_X86_SMAP */
 
@@ -61,20 +49,20 @@
 static __always_inline void clac(void)
 {
 	/* Note: a barrier is implicit in alternative() */
-	alternative(ASM_NOP3, __stringify(__ASM_CLAC), X86_FEATURE_SMAP);
+	alternative("", __stringify(__ASM_CLAC), X86_FEATURE_SMAP);
 }
 
 static __always_inline void stac(void)
 {
 	/* Note: a barrier is implicit in alternative() */
-	alternative(ASM_NOP3, __stringify(__ASM_STAC), X86_FEATURE_SMAP);
+	alternative("", __stringify(__ASM_STAC), X86_FEATURE_SMAP);
 }
 
 /* These macros can be used in asm() statements */
 #define ASM_CLAC \
-	ALTERNATIVE(ASM_NOP3, __stringify(__ASM_CLAC), X86_FEATURE_SMAP)
+	ALTERNATIVE("", __stringify(__ASM_CLAC), X86_FEATURE_SMAP)
 #define ASM_STAC \
-	ALTERNATIVE(ASM_NOP3, __stringify(__ASM_STAC), X86_FEATURE_SMAP)
+	ALTERNATIVE("", __stringify(__ASM_STAC), X86_FEATURE_SMAP)
 
 #else /* CONFIG_X86_SMAP */
 
diff --git a/arch/x86/include/asm/smp.h b/arch/x86/include/asm/smp.h
index 8cd1cc3..81d02fc 100644
--- a/arch/x86/include/asm/smp.h
+++ b/arch/x86/include/asm/smp.h
@@ -154,6 +154,7 @@ void cpu_die_common(unsigned int cpu);
 void native_smp_prepare_boot_cpu(void);
 void native_smp_prepare_cpus(unsigned int max_cpus);
 void native_smp_cpus_done(unsigned int max_cpus);
+void common_cpu_up(unsigned int cpunum, struct task_struct *tidle);
 int native_cpu_up(unsigned int cpunum, struct task_struct *tidle);
 int native_cpu_disable(void);
 void native_cpu_die(unsigned int cpu);
diff --git a/arch/x86/include/asm/special_insns.h b/arch/x86/include/asm/special_insns.h
index 6a4b00f..aeb4666e 100644
--- a/arch/x86/include/asm/special_insns.h
+++ b/arch/x86/include/asm/special_insns.h
@@ -4,6 +4,8 @@
 
 #ifdef __KERNEL__
 
+#include <asm/nops.h>
+
 static inline void native_clts(void)
 {
 	asm volatile("clts");
@@ -199,6 +201,28 @@ static inline void clflushopt(volatile void *__p)
 		       "+m" (*(volatile char __force *)__p));
 }
 
+static inline void clwb(volatile void *__p)
+{
+	volatile struct { char x[64]; } *p = __p;
+
+	asm volatile(ALTERNATIVE_2(
+		".byte " __stringify(NOP_DS_PREFIX) "; clflush (%[pax])",
+		".byte 0x66; clflush (%[pax])", /* clflushopt (%%rax) */
+		X86_FEATURE_CLFLUSHOPT,
+		".byte 0x66, 0x0f, 0xae, 0x30",  /* clwb (%%rax) */
+		X86_FEATURE_CLWB)
+		: [p] "+m" (*p)
+		: [pax] "a" (p));
+}
+
+static inline void pcommit_sfence(void)
+{
+	alternative(ASM_NOP7,
+		    ".byte 0x66, 0x0f, 0xae, 0xf8\n\t" /* pcommit */
+		    "sfence",
+		    X86_FEATURE_PCOMMIT);
+}
+
 #define nop() asm volatile ("nop")
 
 
diff --git a/arch/x86/include/asm/thread_info.h b/arch/x86/include/asm/thread_info.h
index 1d4e4f2..ea2dbe8 100644
--- a/arch/x86/include/asm/thread_info.h
+++ b/arch/x86/include/asm/thread_info.h
@@ -13,6 +13,33 @@
 #include <asm/types.h>
 
 /*
+ * TOP_OF_KERNEL_STACK_PADDING is a number of unused bytes that we
+ * reserve at the top of the kernel stack.  We do it because of a nasty
+ * 32-bit corner case.  On x86_32, the hardware stack frame is
+ * variable-length.  Except for vm86 mode, struct pt_regs assumes a
+ * maximum-length frame.  If we enter from CPL 0, the top 8 bytes of
+ * pt_regs don't actually exist.  Ordinarily this doesn't matter, but it
+ * does in at least one case:
+ *
+ * If we take an NMI early enough in SYSENTER, then we can end up with
+ * pt_regs that extends above sp0.  On the way out, in the espfix code,
+ * we can read the saved SS value, but that value will be above sp0.
+ * Without this offset, that can result in a page fault.  (We are
+ * careful that, in this case, the value we read doesn't matter.)
+ *
+ * In vm86 mode, the hardware frame is much longer still, but we neither
+ * access the extra members from NMI context, nor do we write such a
+ * frame at sp0 at all.
+ *
+ * x86_64 has a fixed-length stack frame.
+ */
+#ifdef CONFIG_X86_32
+# define TOP_OF_KERNEL_STACK_PADDING 8
+#else
+# define TOP_OF_KERNEL_STACK_PADDING 0
+#endif
+
+/*
  * low level task data that entry.S needs immediate access to
  * - this struct should fit entirely inside of one cache line
  * - this struct shares the supervisor stack pages
@@ -145,7 +172,6 @@ struct thread_info {
 #define _TIF_WORK_CTXSW_NEXT (_TIF_WORK_CTXSW)
 
 #define STACK_WARN		(THREAD_SIZE/8)
-#define KERNEL_STACK_OFFSET	(5*(BITS_PER_LONG/8))
 
 /*
  * macros/functions for gaining access to the thread information structure
@@ -158,10 +184,7 @@ DECLARE_PER_CPU(unsigned long, kernel_stack);
 
 static inline struct thread_info *current_thread_info(void)
 {
-	struct thread_info *ti;
-	ti = (void *)(this_cpu_read_stable(kernel_stack) +
-		      KERNEL_STACK_OFFSET - THREAD_SIZE);
-	return ti;
+	return (struct thread_info *)(current_top_of_stack() - THREAD_SIZE);
 }
 
 static inline unsigned long current_stack_pointer(void)
@@ -177,16 +200,37 @@ static inline unsigned long current_stack_pointer(void)
 
 #else /* !__ASSEMBLY__ */
 
-/* how to get the thread information struct from ASM */
+/* Load thread_info address into "reg" */
 #define GET_THREAD_INFO(reg) \
 	_ASM_MOV PER_CPU_VAR(kernel_stack),reg ; \
-	_ASM_SUB $(THREAD_SIZE-KERNEL_STACK_OFFSET),reg ;
+	_ASM_SUB $(THREAD_SIZE),reg ;
 
 /*
- * Same if PER_CPU_VAR(kernel_stack) is, perhaps with some offset, already in
- * a certain register (to be used in assembler memory operands).
+ * ASM operand which evaluates to a 'thread_info' address of
+ * the current task, if it is known that "reg" is exactly "off"
+ * bytes below the top of the stack currently.
+ *
+ * ( The kernel stack's size is known at build time, it is usually
+ *   2 or 4 pages, and the bottom  of the kernel stack contains
+ *   the thread_info structure. So to access the thread_info very
+ *   quickly from assembly code we can calculate down from the
+ *   top of the kernel stack to the bottom, using constant,
+ *   build-time calculations only. )
+ *
+ * For example, to fetch the current thread_info->flags value into %eax
+ * on x86-64 defconfig kernels, in syscall entry code where RSP is
+ * currently at exactly SIZEOF_PTREGS bytes away from the top of the
+ * stack:
+ *
+ *      mov ASM_THREAD_INFO(TI_flags, %rsp, SIZEOF_PTREGS), %eax
+ *
+ * will translate to:
+ *
+ *      8b 84 24 b8 c0 ff ff      mov    -0x3f48(%rsp), %eax
+ *
+ * which is below the current RSP by almost 16K.
  */
-#define THREAD_INFO(reg, off) KERNEL_STACK_OFFSET+(off)-THREAD_SIZE(reg)
+#define ASM_THREAD_INFO(field, reg, off) ((field)+(off)-THREAD_SIZE)(reg)
 
 #endif
 
@@ -236,6 +280,16 @@ static inline bool is_ia32_task(void)
 #endif
 	return false;
 }
+
+/*
+ * Force syscall return via IRET by making it look as if there was
+ * some work pending. IRET is our most capable (but slowest) syscall
+ * return path, which is able to restore modified SS, CS and certain
+ * EFLAGS values that other (fast) syscall return instructions
+ * are not able to restore properly.
+ */
+#define force_iret() set_thread_flag(TIF_NOTIFY_RESUME)
+
 #endif	/* !__ASSEMBLY__ */
 
 #ifndef __ASSEMBLY__
diff --git a/arch/x86/include/asm/uaccess_64.h b/arch/x86/include/asm/uaccess_64.h
index 12a26b9..f2f9b39 100644
--- a/arch/x86/include/asm/uaccess_64.h
+++ b/arch/x86/include/asm/uaccess_64.h
@@ -231,6 +231,6 @@ __copy_from_user_inatomic_nocache(void *dst, const void __user *src,
 }
 
 unsigned long
-copy_user_handle_tail(char *to, char *from, unsigned len, unsigned zerorest);
+copy_user_handle_tail(char *to, char *from, unsigned len);
 
 #endif /* _ASM_X86_UACCESS_64_H */
diff --git a/arch/x86/include/asm/xsave.h b/arch/x86/include/asm/xsave.h
index 5fa9770..c9a6d68 100644
--- a/arch/x86/include/asm/xsave.h
+++ b/arch/x86/include/asm/xsave.h
@@ -82,18 +82,15 @@ static inline int xsave_state_booting(struct xsave_struct *fx, u64 mask)
 	if (boot_cpu_has(X86_FEATURE_XSAVES))
 		asm volatile("1:"XSAVES"\n\t"
 			"2:\n\t"
-			: : "D" (fx), "m" (*fx), "a" (lmask), "d" (hmask)
+			     xstate_fault
+			: "D" (fx), "m" (*fx), "a" (lmask), "d" (hmask)
 			:   "memory");
 	else
 		asm volatile("1:"XSAVE"\n\t"
 			"2:\n\t"
-			: : "D" (fx), "m" (*fx), "a" (lmask), "d" (hmask)
+			     xstate_fault
+			: "D" (fx), "m" (*fx), "a" (lmask), "d" (hmask)
 			:   "memory");
-
-	asm volatile(xstate_fault
-		     : "0" (0)
-		     : "memory");
-
 	return err;
 }
 
@@ -112,18 +109,15 @@ static inline int xrstor_state_booting(struct xsave_struct *fx, u64 mask)
 	if (boot_cpu_has(X86_FEATURE_XSAVES))
 		asm volatile("1:"XRSTORS"\n\t"
 			"2:\n\t"
-			: : "D" (fx), "m" (*fx), "a" (lmask), "d" (hmask)
+			     xstate_fault
+			: "D" (fx), "m" (*fx), "a" (lmask), "d" (hmask)
 			:   "memory");
 	else
 		asm volatile("1:"XRSTOR"\n\t"
 			"2:\n\t"
-			: : "D" (fx), "m" (*fx), "a" (lmask), "d" (hmask)
+			     xstate_fault
+			: "D" (fx), "m" (*fx), "a" (lmask), "d" (hmask)
 			:   "memory");
-
-	asm volatile(xstate_fault
-		     : "0" (0)
-		     : "memory");
-
 	return err;
 }
 
@@ -149,9 +143,9 @@ static inline int xsave_state(struct xsave_struct *fx, u64 mask)
 	 */
 	alternative_input_2(
 		"1:"XSAVE,
-		"1:"XSAVEOPT,
+		XSAVEOPT,
 		X86_FEATURE_XSAVEOPT,
-		"1:"XSAVES,
+		XSAVES,
 		X86_FEATURE_XSAVES,
 		[fx] "D" (fx), "a" (lmask), "d" (hmask) :
 		"memory");
@@ -178,7 +172,7 @@ static inline int xrstor_state(struct xsave_struct *fx, u64 mask)
 	 */
 	alternative_input(
 		"1: " XRSTOR,
-		"1: " XRSTORS,
+		XRSTORS,
 		X86_FEATURE_XSAVES,
 		"D" (fx), "m" (*fx), "a" (lmask), "d" (hmask)
 		: "memory");
diff --git a/arch/x86/include/uapi/asm/bootparam.h b/arch/x86/include/uapi/asm/bootparam.h
index 44e6dd7..ab456dc 100644
--- a/arch/x86/include/uapi/asm/bootparam.h
+++ b/arch/x86/include/uapi/asm/bootparam.h
@@ -7,7 +7,6 @@
 #define SETUP_DTB			2
 #define SETUP_PCI			3
 #define SETUP_EFI			4
-#define SETUP_KASLR			5
 
 /* ram_size flags */
 #define RAMDISK_IMAGE_START_MASK	0x07FF
@@ -16,6 +15,7 @@
 
 /* loadflags */
 #define LOADED_HIGH	(1<<0)
+#define KASLR_FLAG	(1<<1)
 #define QUIET_FLAG	(1<<5)
 #define KEEP_SEGMENTS	(1<<6)
 #define CAN_USE_HEAP	(1<<7)
diff --git a/arch/x86/include/uapi/asm/ptrace-abi.h b/arch/x86/include/uapi/asm/ptrace-abi.h
index 7b0a55a..580aee3 100644
--- a/arch/x86/include/uapi/asm/ptrace-abi.h
+++ b/arch/x86/include/uapi/asm/ptrace-abi.h
@@ -25,13 +25,17 @@
 #else /* __i386__ */
 
 #if defined(__ASSEMBLY__) || defined(__FRAME_OFFSETS)
+/*
+ * C ABI says these regs are callee-preserved. They aren't saved on kernel entry
+ * unless syscall needs a complete, fully filled "struct pt_regs".
+ */
 #define R15 0
 #define R14 8
 #define R13 16
 #define R12 24
 #define RBP 32
 #define RBX 40
-/* arguments: interrupts/non tracing syscalls only save up to here*/
+/* These regs are callee-clobbered. Always saved on kernel entry. */
 #define R11 48
 #define R10 56
 #define R9 64
@@ -41,15 +45,17 @@
 #define RDX 96
 #define RSI 104
 #define RDI 112
-#define ORIG_RAX 120       /* = ERROR */
-/* end of arguments */
-/* cpu exception frame or undefined in case of fast syscall. */
+/*
+ * On syscall entry, this is syscall#. On CPU exception, this is error code.
+ * On hw interrupt, it's IRQ number:
+ */
+#define ORIG_RAX 120
+/* Return frame for iretq */
 #define RIP 128
 #define CS 136
 #define EFLAGS 144
 #define RSP 152
 #define SS 160
-#define ARGOFFSET R11
 #endif /* __ASSEMBLY__ */
 
 /* top of stack page */
diff --git a/arch/x86/include/uapi/asm/ptrace.h b/arch/x86/include/uapi/asm/ptrace.h
index ac4b9aa..bc16115 100644
--- a/arch/x86/include/uapi/asm/ptrace.h
+++ b/arch/x86/include/uapi/asm/ptrace.h
@@ -41,13 +41,17 @@ struct pt_regs {
 #ifndef __KERNEL__
 
 struct pt_regs {
+/*
+ * C ABI says these regs are callee-preserved. They aren't saved on kernel entry
+ * unless syscall needs a complete, fully filled "struct pt_regs".
+ */
 	unsigned long r15;
 	unsigned long r14;
 	unsigned long r13;
 	unsigned long r12;
 	unsigned long rbp;
 	unsigned long rbx;
-/* arguments: non interrupts/non tracing syscalls only save up to here*/
+/* These regs are callee-clobbered. Always saved on kernel entry. */
 	unsigned long r11;
 	unsigned long r10;
 	unsigned long r9;
@@ -57,9 +61,12 @@ struct pt_regs {
 	unsigned long rdx;
 	unsigned long rsi;
 	unsigned long rdi;
+/*
+ * On syscall entry, this is syscall#. On CPU exception, this is error code.
+ * On hw interrupt, it's IRQ number:
+ */
 	unsigned long orig_rax;
-/* end of arguments */
-/* cpu exception frame or undefined */
+/* Return frame for iretq */
 	unsigned long rip;
 	unsigned long cs;
 	unsigned long eflags;
diff --git a/arch/x86/include/uapi/asm/sigcontext.h b/arch/x86/include/uapi/asm/sigcontext.h
index d8b9f90..16dc4e8 100644
--- a/arch/x86/include/uapi/asm/sigcontext.h
+++ b/arch/x86/include/uapi/asm/sigcontext.h
@@ -177,9 +177,24 @@ struct sigcontext {
 	__u64 rip;
 	__u64 eflags;		/* RFLAGS */
 	__u16 cs;
-	__u16 gs;
-	__u16 fs;
-	__u16 __pad0;
+
+	/*
+	 * Prior to 2.5.64 ("[PATCH] x86-64 updates for 2.5.64-bk3"),
+	 * Linux saved and restored fs and gs in these slots.  This
+	 * was counterproductive, as fsbase and gsbase were never
+	 * saved, so arch_prctl was presumably unreliable.
+	 *
+	 * If these slots are ever needed for any other purpose, there
+	 * is some risk that very old 64-bit binaries could get
+	 * confused.  I doubt that many such binaries still work,
+	 * though, since the same patch in 2.5.64 also removed the
+	 * 64-bit set_thread_area syscall, so it appears that there is
+	 * no TLS API that works in both pre- and post-2.5.64 kernels.
+	 */
+	__u16 __pad2;		/* Was gs. */
+	__u16 __pad1;		/* Was fs. */
+
+	__u16 ss;
 	__u64 err;
 	__u64 trapno;
 	__u64 oldmask;
diff --git a/arch/x86/include/uapi/asm/vmx.h b/arch/x86/include/uapi/asm/vmx.h
index c5f1a1d..1fe9218 100644
--- a/arch/x86/include/uapi/asm/vmx.h
+++ b/arch/x86/include/uapi/asm/vmx.h
@@ -67,6 +67,7 @@
 #define EXIT_REASON_EPT_VIOLATION       48
 #define EXIT_REASON_EPT_MISCONFIG       49
 #define EXIT_REASON_INVEPT              50
+#define EXIT_REASON_RDTSCP              51
 #define EXIT_REASON_PREEMPTION_TIMER    52
 #define EXIT_REASON_INVVPID             53
 #define EXIT_REASON_WBINVD              54
diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile
index cdb1b70..c887cd9 100644
--- a/arch/x86/kernel/Makefile
+++ b/arch/x86/kernel/Makefile
@@ -32,6 +32,7 @@ obj-$(CONFIG_X86_32)	+= i386_ksyms_32.o
 obj-$(CONFIG_X86_64)	+= sys_x86_64.o x8664_ksyms_64.o
 obj-$(CONFIG_X86_64)	+= mcount_64.o
 obj-y			+= syscall_$(BITS).o vsyscall_gtod.o
+obj-$(CONFIG_IA32_EMULATION)	+= syscall_32.o
 obj-$(CONFIG_X86_VSYSCALL_EMULATION)	+= vsyscall_64.o vsyscall_emu_64.o
 obj-$(CONFIG_X86_ESPFIX64)	+= espfix_64.o
 obj-$(CONFIG_SYSFS)	+= ksysfs.o
diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
index 3d525c6..803b684 100644
--- a/arch/x86/kernel/acpi/boot.c
+++ b/arch/x86/kernel/acpi/boot.c
@@ -1338,6 +1338,26 @@ static int __init dmi_ignore_irq0_timer_override(const struct dmi_system_id *d)
 }
 
 /*
+ * ACPI offers an alternative platform interface model that removes
+ * ACPI hardware requirements for platforms that do not implement
+ * the PC Architecture.
+ *
+ * We initialize the Hardware-reduced ACPI model here:
+ */
+static void __init acpi_reduced_hw_init(void)
+{
+	if (acpi_gbl_reduced_hardware) {
+		/*
+		 * Override x86_init functions and bypass legacy pic
+		 * in Hardware-reduced ACPI mode
+		 */
+		x86_init.timers.timer_init	= x86_init_noop;
+		x86_init.irqs.pre_vector_init	= x86_init_noop;
+		legacy_pic			= &null_legacy_pic;
+	}
+}
+
+/*
  * If your system is blacklisted here, but you find that acpi=force
  * works for you, please contact linux-acpi@vger.kernel.org
  */
@@ -1536,6 +1556,11 @@ int __init early_acpi_boot_init(void)
 	 */
 	early_acpi_process_madt();
 
+	/*
+	 * Hardware-reduced ACPI mode initialization:
+	 */
+	acpi_reduced_hw_init();
+
 	return 0;
 }
 
diff --git a/arch/x86/kernel/alternative.c b/arch/x86/kernel/alternative.c
index 703130f..aef6531 100644
--- a/arch/x86/kernel/alternative.c
+++ b/arch/x86/kernel/alternative.c
@@ -52,10 +52,25 @@ static int __init setup_noreplace_paravirt(char *str)
 __setup("noreplace-paravirt", setup_noreplace_paravirt);
 #endif
 
-#define DPRINTK(fmt, ...)				\
-do {							\
-	if (debug_alternative)				\
-		printk(KERN_DEBUG fmt, ##__VA_ARGS__);	\
+#define DPRINTK(fmt, args...)						\
+do {									\
+	if (debug_alternative)						\
+		printk(KERN_DEBUG "%s: " fmt "\n", __func__, ##args);	\
+} while (0)
+
+#define DUMP_BYTES(buf, len, fmt, args...)				\
+do {									\
+	if (unlikely(debug_alternative)) {				\
+		int j;							\
+									\
+		if (!(len))						\
+			break;						\
+									\
+		printk(KERN_DEBUG fmt, ##args);				\
+		for (j = 0; j < (len) - 1; j++)				\
+			printk(KERN_CONT "%02hhx ", buf[j]);		\
+		printk(KERN_CONT "%02hhx\n", buf[j]);			\
+	}								\
 } while (0)
 
 /*
@@ -243,12 +258,89 @@ extern struct alt_instr __alt_instructions[], __alt_instructions_end[];
 extern s32 __smp_locks[], __smp_locks_end[];
 void *text_poke_early(void *addr, const void *opcode, size_t len);
 
-/* Replace instructions with better alternatives for this CPU type.
-   This runs before SMP is initialized to avoid SMP problems with
-   self modifying code. This implies that asymmetric systems where
-   APs have less capabilities than the boot processor are not handled.
-   Tough. Make sure you disable such features by hand. */
+/*
+ * Are we looking at a near JMP with a 1 or 4-byte displacement.
+ */
+static inline bool is_jmp(const u8 opcode)
+{
+	return opcode == 0xeb || opcode == 0xe9;
+}
+
+static void __init_or_module
+recompute_jump(struct alt_instr *a, u8 *orig_insn, u8 *repl_insn, u8 *insnbuf)
+{
+	u8 *next_rip, *tgt_rip;
+	s32 n_dspl, o_dspl;
+	int repl_len;
+
+	if (a->replacementlen != 5)
+		return;
+
+	o_dspl = *(s32 *)(insnbuf + 1);
+
+	/* next_rip of the replacement JMP */
+	next_rip = repl_insn + a->replacementlen;
+	/* target rip of the replacement JMP */
+	tgt_rip  = next_rip + o_dspl;
+	n_dspl = tgt_rip - orig_insn;
+
+	DPRINTK("target RIP: %p, new_displ: 0x%x", tgt_rip, n_dspl);
+
+	if (tgt_rip - orig_insn >= 0) {
+		if (n_dspl - 2 <= 127)
+			goto two_byte_jmp;
+		else
+			goto five_byte_jmp;
+	/* negative offset */
+	} else {
+		if (((n_dspl - 2) & 0xff) == (n_dspl - 2))
+			goto two_byte_jmp;
+		else
+			goto five_byte_jmp;
+	}
+
+two_byte_jmp:
+	n_dspl -= 2;
+
+	insnbuf[0] = 0xeb;
+	insnbuf[1] = (s8)n_dspl;
+	add_nops(insnbuf + 2, 3);
+
+	repl_len = 2;
+	goto done;
+
+five_byte_jmp:
+	n_dspl -= 5;
+
+	insnbuf[0] = 0xe9;
+	*(s32 *)&insnbuf[1] = n_dspl;
 
+	repl_len = 5;
+
+done:
+
+	DPRINTK("final displ: 0x%08x, JMP 0x%lx",
+		n_dspl, (unsigned long)orig_insn + n_dspl + repl_len);
+}
+
+static void __init_or_module optimize_nops(struct alt_instr *a, u8 *instr)
+{
+	if (instr[0] != 0x90)
+		return;
+
+	add_nops(instr + (a->instrlen - a->padlen), a->padlen);
+
+	DUMP_BYTES(instr, a->instrlen, "%p: [%d:%d) optimized NOPs: ",
+		   instr, a->instrlen - a->padlen, a->padlen);
+}
+
+/*
+ * Replace instructions with better alternatives for this CPU type. This runs
+ * before SMP is initialized to avoid SMP problems with self modifying code.
+ * This implies that asymmetric systems where APs have less capabilities than
+ * the boot processor are not handled. Tough. Make sure you disable such
+ * features by hand.
+ */
 void __init_or_module apply_alternatives(struct alt_instr *start,
 					 struct alt_instr *end)
 {
@@ -256,10 +348,10 @@ void __init_or_module apply_alternatives(struct alt_instr *start,
 	u8 *instr, *replacement;
 	u8 insnbuf[MAX_PATCH_LEN];
 
-	DPRINTK("%s: alt table %p -> %p\n", __func__, start, end);
+	DPRINTK("alt table %p -> %p", start, end);
 	/*
 	 * The scan order should be from start to end. A later scanned
-	 * alternative code can overwrite a previous scanned alternative code.
+	 * alternative code can overwrite previously scanned alternative code.
 	 * Some kernel functions (e.g. memcpy, memset, etc) use this order to
 	 * patch code.
 	 *
@@ -267,29 +359,54 @@ void __init_or_module apply_alternatives(struct alt_instr *start,
 	 * order.
 	 */
 	for (a = start; a < end; a++) {
+		int insnbuf_sz = 0;
+
 		instr = (u8 *)&a->instr_offset + a->instr_offset;
 		replacement = (u8 *)&a->repl_offset + a->repl_offset;
-		BUG_ON(a->replacementlen > a->instrlen);
 		BUG_ON(a->instrlen > sizeof(insnbuf));
 		BUG_ON(a->cpuid >= (NCAPINTS + NBUGINTS) * 32);
-		if (!boot_cpu_has(a->cpuid))
+		if (!boot_cpu_has(a->cpuid)) {
+			if (a->padlen > 1)
+				optimize_nops(a, instr);
+
 			continue;
+		}
+
+		DPRINTK("feat: %d*32+%d, old: (%p, len: %d), repl: (%p, len: %d), pad: %d",
+			a->cpuid >> 5,
+			a->cpuid & 0x1f,
+			instr, a->instrlen,
+			replacement, a->replacementlen, a->padlen);
+
+		DUMP_BYTES(instr, a->instrlen, "%p: old_insn: ", instr);
+		DUMP_BYTES(replacement, a->replacementlen, "%p: rpl_insn: ", replacement);
 
 		memcpy(insnbuf, replacement, a->replacementlen);
+		insnbuf_sz = a->replacementlen;
 
 		/* 0xe8 is a relative jump; fix the offset. */
-		if (*insnbuf == 0xe8 && a->replacementlen == 5)
-		    *(s32 *)(insnbuf + 1) += replacement - instr;
+		if (*insnbuf == 0xe8 && a->replacementlen == 5) {
+			*(s32 *)(insnbuf + 1) += replacement - instr;
+			DPRINTK("Fix CALL offset: 0x%x, CALL 0x%lx",
+				*(s32 *)(insnbuf + 1),
+				(unsigned long)instr + *(s32 *)(insnbuf + 1) + 5);
+		}
+
+		if (a->replacementlen && is_jmp(replacement[0]))
+			recompute_jump(a, instr, replacement, insnbuf);
 
-		add_nops(insnbuf + a->replacementlen,
-			 a->instrlen - a->replacementlen);
+		if (a->instrlen > a->replacementlen) {
+			add_nops(insnbuf + a->replacementlen,
+				 a->instrlen - a->replacementlen);
+			insnbuf_sz += a->instrlen - a->replacementlen;
+		}
+		DUMP_BYTES(insnbuf, insnbuf_sz, "%p: final_insn: ", instr);
 
-		text_poke_early(instr, insnbuf, a->instrlen);
+		text_poke_early(instr, insnbuf, insnbuf_sz);
 	}
 }
 
 #ifdef CONFIG_SMP
-
 static void alternatives_smp_lock(const s32 *start, const s32 *end,
 				  u8 *text, u8 *text_end)
 {
@@ -371,8 +488,8 @@ void __init_or_module alternatives_smp_module_add(struct module *mod,
 	smp->locks_end	= locks_end;
 	smp->text	= text;
 	smp->text_end	= text_end;
-	DPRINTK("%s: locks %p -> %p, text %p -> %p, name %s\n",
-		__func__, smp->locks, smp->locks_end,
+	DPRINTK("locks %p -> %p, text %p -> %p, name %s\n",
+		smp->locks, smp->locks_end,
 		smp->text, smp->text_end, smp->name);
 
 	list_add_tail(&smp->next, &smp_alt_modules);
@@ -440,7 +557,7 @@ int alternatives_text_reserved(void *start, void *end)
 
 	return 0;
 }
-#endif
+#endif /* CONFIG_SMP */
 
 #ifdef CONFIG_PARAVIRT
 void __init_or_module apply_paravirt(struct paravirt_patch_site *start,
@@ -601,7 +718,7 @@ int poke_int3_handler(struct pt_regs *regs)
 	if (likely(!bp_patching_in_progress))
 		return 0;
 
-	if (user_mode_vm(regs) || regs->ip != (unsigned long)bp_int3_addr)
+	if (user_mode(regs) || regs->ip != (unsigned long)bp_int3_addr)
 		return 0;
 
 	/* set up the specified breakpoint handler */
diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c
index ad3639a..dcb5285 100644
--- a/arch/x86/kernel/apic/apic.c
+++ b/arch/x86/kernel/apic/apic.c
@@ -1084,67 +1084,6 @@ void lapic_shutdown(void)
 	local_irq_restore(flags);
 }
 
-/*
- * This is to verify that we're looking at a real local APIC.
- * Check these against your board if the CPUs aren't getting
- * started for no apparent reason.
- */
-int __init verify_local_APIC(void)
-{
-	unsigned int reg0, reg1;
-
-	/*
-	 * The version register is read-only in a real APIC.
-	 */
-	reg0 = apic_read(APIC_LVR);
-	apic_printk(APIC_DEBUG, "Getting VERSION: %x\n", reg0);
-	apic_write(APIC_LVR, reg0 ^ APIC_LVR_MASK);
-	reg1 = apic_read(APIC_LVR);
-	apic_printk(APIC_DEBUG, "Getting VERSION: %x\n", reg1);
-
-	/*
-	 * The two version reads above should print the same
-	 * numbers.  If the second one is different, then we
-	 * poke at a non-APIC.
-	 */
-	if (reg1 != reg0)
-		return 0;
-
-	/*
-	 * Check if the version looks reasonably.
-	 */
-	reg1 = GET_APIC_VERSION(reg0);
-	if (reg1 == 0x00 || reg1 == 0xff)
-		return 0;
-	reg1 = lapic_get_maxlvt();
-	if (reg1 < 0x02 || reg1 == 0xff)
-		return 0;
-
-	/*
-	 * The ID register is read/write in a real APIC.
-	 */
-	reg0 = apic_read(APIC_ID);
-	apic_printk(APIC_DEBUG, "Getting ID: %x\n", reg0);
-	apic_write(APIC_ID, reg0 ^ apic->apic_id_mask);
-	reg1 = apic_read(APIC_ID);
-	apic_printk(APIC_DEBUG, "Getting ID: %x\n", reg1);
-	apic_write(APIC_ID, reg0);
-	if (reg1 != (reg0 ^ apic->apic_id_mask))
-		return 0;
-
-	/*
-	 * The next two are just to see if we have sane values.
-	 * They're only really relevant if we're in Virtual Wire
-	 * compatibility mode, but most boxes are anymore.
-	 */
-	reg0 = apic_read(APIC_LVT0);
-	apic_printk(APIC_DEBUG, "Getting LVT0: %x\n", reg0);
-	reg1 = apic_read(APIC_LVT1);
-	apic_printk(APIC_DEBUG, "Getting LVT1: %x\n", reg1);
-
-	return 1;
-}
-
 /**
  * sync_Arb_IDs - synchronize APIC bus arbitration IDs
  */
@@ -2283,7 +2222,6 @@ int __init APIC_init_uniprocessor(void)
 		disable_ioapic_support();
 
 	default_setup_apic_routing();
-	verify_local_APIC();
 	apic_bsp_setup(true);
 	return 0;
 }
diff --git a/arch/x86/kernel/apic/apic_numachip.c b/arch/x86/kernel/apic/apic_numachip.c
index c2fd21f..017149c 100644
--- a/arch/x86/kernel/apic/apic_numachip.c
+++ b/arch/x86/kernel/apic/apic_numachip.c
@@ -37,10 +37,12 @@ static const struct apic apic_numachip;
 static unsigned int get_apic_id(unsigned long x)
 {
 	unsigned long value;
-	unsigned int id;
+	unsigned int id = (x >> 24) & 0xff;
 
-	rdmsrl(MSR_FAM10H_NODE_ID, value);
-	id = ((x >> 24) & 0xffU) | ((value << 2) & 0xff00U);
+	if (static_cpu_has_safe(X86_FEATURE_NODEID_MSR)) {
+		rdmsrl(MSR_FAM10H_NODE_ID, value);
+		id |= (value << 2) & 0xff00;
+	}
 
 	return id;
 }
@@ -155,10 +157,18 @@ static int __init numachip_probe(void)
 
 static void fixup_cpu_id(struct cpuinfo_x86 *c, int node)
 {
-	if (c->phys_proc_id != node) {
-		c->phys_proc_id = node;
-		per_cpu(cpu_llc_id, smp_processor_id()) = node;
+	u64 val;
+	u32 nodes = 1;
+
+	this_cpu_write(cpu_llc_id, node);
+
+	/* Account for nodes per socket in multi-core-module processors */
+	if (static_cpu_has_safe(X86_FEATURE_NODEID_MSR)) {
+		rdmsrl(MSR_FAM10H_NODE_ID, val);
+		nodes = ((val >> 3) & 7) + 1;
 	}
+
+	c->phys_proc_id = node / nodes;
 }
 
 static int __init numachip_system_init(void)
diff --git a/arch/x86/kernel/apic/x2apic_cluster.c b/arch/x86/kernel/apic/x2apic_cluster.c
index e658f21..d9d0bd2 100644
--- a/arch/x86/kernel/apic/x2apic_cluster.c
+++ b/arch/x86/kernel/apic/x2apic_cluster.c
@@ -135,12 +135,12 @@ static void init_x2apic_ldr(void)
 
 	per_cpu(x86_cpu_to_logical_apicid, this_cpu) = apic_read(APIC_LDR);
 
-	__cpu_set(this_cpu, per_cpu(cpus_in_cluster, this_cpu));
+	cpumask_set_cpu(this_cpu, per_cpu(cpus_in_cluster, this_cpu));
 	for_each_online_cpu(cpu) {
 		if (x2apic_cluster(this_cpu) != x2apic_cluster(cpu))
 			continue;
-		__cpu_set(this_cpu, per_cpu(cpus_in_cluster, cpu));
-		__cpu_set(cpu, per_cpu(cpus_in_cluster, this_cpu));
+		cpumask_set_cpu(this_cpu, per_cpu(cpus_in_cluster, cpu));
+		cpumask_set_cpu(cpu, per_cpu(cpus_in_cluster, this_cpu));
 	}
 }
 
@@ -195,7 +195,7 @@ static int x2apic_init_cpu_notifier(void)
 
 	BUG_ON(!per_cpu(cpus_in_cluster, cpu) || !per_cpu(ipi_mask, cpu));
 
-	__cpu_set(cpu, per_cpu(cpus_in_cluster, cpu));
+	cpumask_set_cpu(cpu, per_cpu(cpus_in_cluster, cpu));
 	register_hotcpu_notifier(&x2apic_cpu_notifier);
 	return 1;
 }
diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c
index 8e9dcfd..c8d9295 100644
--- a/arch/x86/kernel/apic/x2apic_uv_x.c
+++ b/arch/x86/kernel/apic/x2apic_uv_x.c
@@ -144,33 +144,60 @@ static void __init uv_set_apicid_hibit(void)
 
 static int __init uv_acpi_madt_oem_check(char *oem_id, char *oem_table_id)
 {
-	int pnodeid, is_uv1, is_uv2, is_uv3;
-
-	is_uv1 = !strcmp(oem_id, "SGI");
-	is_uv2 = !strcmp(oem_id, "SGI2");
-	is_uv3 = !strncmp(oem_id, "SGI3", 4);	/* there are varieties of UV3 */
-	if (is_uv1 || is_uv2 || is_uv3) {
-		uv_hub_info->hub_revision =
-			(is_uv1 ? UV1_HUB_REVISION_BASE :
-			(is_uv2 ? UV2_HUB_REVISION_BASE :
-				  UV3_HUB_REVISION_BASE));
-		pnodeid = early_get_pnodeid();
-		early_get_apic_pnode_shift();
-		x86_platform.is_untracked_pat_range =  uv_is_untracked_pat_range;
-		x86_platform.nmi_init = uv_nmi_init;
-		if (!strcmp(oem_table_id, "UVL"))
-			uv_system_type = UV_LEGACY_APIC;
-		else if (!strcmp(oem_table_id, "UVX"))
-			uv_system_type = UV_X2APIC;
-		else if (!strcmp(oem_table_id, "UVH")) {
-			__this_cpu_write(x2apic_extra_bits,
-				pnodeid << uvh_apicid.s.pnode_shift);
-			uv_system_type = UV_NON_UNIQUE_APIC;
-			uv_set_apicid_hibit();
-			return 1;
-		}
+	int pnodeid;
+	int uv_apic;
+
+	if (strncmp(oem_id, "SGI", 3) != 0)
+		return 0;
+
+	/*
+	 * Determine UV arch type.
+	 *   SGI: UV100/1000
+	 *   SGI2: UV2000/3000
+	 *   SGI3: UV300 (truncated to 4 chars because of different varieties)
+	 */
+	uv_hub_info->hub_revision =
+		!strncmp(oem_id, "SGI3", 4) ? UV3_HUB_REVISION_BASE :
+		!strcmp(oem_id, "SGI2") ? UV2_HUB_REVISION_BASE :
+		!strcmp(oem_id, "SGI") ? UV1_HUB_REVISION_BASE : 0;
+
+	if (uv_hub_info->hub_revision == 0)
+		goto badbios;
+
+	pnodeid = early_get_pnodeid();
+	early_get_apic_pnode_shift();
+	x86_platform.is_untracked_pat_range =  uv_is_untracked_pat_range;
+	x86_platform.nmi_init = uv_nmi_init;
+
+	if (!strcmp(oem_table_id, "UVX")) {		/* most common */
+		uv_system_type = UV_X2APIC;
+		uv_apic = 0;
+
+	} else if (!strcmp(oem_table_id, "UVH")) {	/* only UV1 systems */
+		uv_system_type = UV_NON_UNIQUE_APIC;
+		__this_cpu_write(x2apic_extra_bits,
+			pnodeid << uvh_apicid.s.pnode_shift);
+		uv_set_apicid_hibit();
+		uv_apic = 1;
+
+	} else	if (!strcmp(oem_table_id, "UVL")) {	/* only used for */
+		uv_system_type = UV_LEGACY_APIC;	/* very small systems */
+		uv_apic = 0;
+
+	} else {
+		goto badbios;
 	}
-	return 0;
+
+	pr_info("UV: OEM IDs %s/%s, System/HUB Types %d/%d, uv_apic %d\n",
+		oem_id, oem_table_id, uv_system_type,
+		uv_min_hub_revision_id, uv_apic);
+
+	return uv_apic;
+
+badbios:
+	pr_err("UV: OEM_ID:%s OEM_TABLE_ID:%s\n", oem_id, oem_table_id);
+	pr_err("Current BIOS not supported, update kernel and/or BIOS\n");
+	BUG();
 }
 
 enum uv_system_type get_uv_system_type(void)
@@ -854,10 +881,14 @@ void __init uv_system_init(void)
 	unsigned long mmr_base, present, paddr;
 	unsigned short pnode_mask;
 	unsigned char n_lshift;
-	char *hub = (is_uv1_hub() ? "UV1" :
-		    (is_uv2_hub() ? "UV2" :
-				    "UV3"));
+	char *hub = (is_uv1_hub() ? "UV100/1000" :
+		    (is_uv2_hub() ? "UV2000/3000" :
+		    (is_uv3_hub() ? "UV300" : NULL)));
 
+	if (!hub) {
+		pr_err("UV: Unknown/unsupported UV hub\n");
+		return;
+	}
 	pr_info("UV: Found %s hub\n", hub);
 	map_low_mmrs();
 
diff --git a/arch/x86/kernel/asm-offsets_32.c b/arch/x86/kernel/asm-offsets_32.c
index 3b3b9d3..47703ae 100644
--- a/arch/x86/kernel/asm-offsets_32.c
+++ b/arch/x86/kernel/asm-offsets_32.c
@@ -68,7 +68,7 @@ void foo(void)
 
 	/* Offset from the sysenter stack to tss.sp0 */
 	DEFINE(TSS_sysenter_sp0, offsetof(struct tss_struct, x86_tss.sp0) -
-		 sizeof(struct tss_struct));
+	       offsetofend(struct tss_struct, SYSENTER_stack));
 
 #if defined(CONFIG_LGUEST) || defined(CONFIG_LGUEST_GUEST) || defined(CONFIG_LGUEST_MODULE)
 	BLANK();
diff --git a/arch/x86/kernel/asm-offsets_64.c b/arch/x86/kernel/asm-offsets_64.c
index fdcbb4d..5ce6f2d 100644
--- a/arch/x86/kernel/asm-offsets_64.c
+++ b/arch/x86/kernel/asm-offsets_64.c
@@ -81,6 +81,7 @@ int main(void)
 #undef ENTRY
 
 	OFFSET(TSS_ist, tss_struct, x86_tss.ist);
+	OFFSET(TSS_sp0, tss_struct, x86_tss.sp0);
 	BLANK();
 
 	DEFINE(__NR_syscall_max, sizeof(syscalls_64) - 1);
diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c
index a220239..fd470eb 100644
--- a/arch/x86/kernel/cpu/amd.c
+++ b/arch/x86/kernel/cpu/amd.c
@@ -5,6 +5,7 @@
 
 #include <linux/io.h>
 #include <linux/sched.h>
+#include <linux/random.h>
 #include <asm/processor.h>
 #include <asm/apic.h>
 #include <asm/cpu.h>
@@ -488,6 +489,9 @@ static void bsp_init_amd(struct cpuinfo_x86 *c)
 
 		va_align.mask	  = (upperbit - 1) & PAGE_MASK;
 		va_align.flags    = ALIGN_VA_32 | ALIGN_VA_64;
+
+		/* A random value per boot for bit slice [12:upper_bit) */
+		va_align.bits = get_random_int() & va_align.mask;
 	}
 }
 
@@ -711,6 +715,11 @@ static void init_amd(struct cpuinfo_x86 *c)
 		set_cpu_bug(c, X86_BUG_AMD_APIC_C1E);
 
 	rdmsr_safe(MSR_AMD64_PATCH_LEVEL, &c->microcode, &dummy);
+
+	/* 3DNow or LM implies PREFETCHW */
+	if (!cpu_has(c, X86_FEATURE_3DNOWPREFETCH))
+		if (cpu_has(c, X86_FEATURE_3DNOW) || cpu_has(c, X86_FEATURE_LM))
+			set_cpu_cap(c, X86_FEATURE_3DNOWPREFETCH);
 }
 
 #ifdef CONFIG_X86_32
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index b5c8ff5..3f70538 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -959,38 +959,37 @@ static void identify_cpu(struct cpuinfo_x86 *c)
 #endif
 }
 
-#ifdef CONFIG_X86_64
-#ifdef CONFIG_IA32_EMULATION
-/* May not be __init: called during resume */
-static void syscall32_cpu_init(void)
-{
-	/* Load these always in case some future AMD CPU supports
-	   SYSENTER from compat mode too. */
-	wrmsrl_safe(MSR_IA32_SYSENTER_CS, (u64)__KERNEL_CS);
-	wrmsrl_safe(MSR_IA32_SYSENTER_ESP, 0ULL);
-	wrmsrl_safe(MSR_IA32_SYSENTER_EIP, (u64)ia32_sysenter_target);
-
-	wrmsrl(MSR_CSTAR, ia32_cstar_target);
-}
-#endif		/* CONFIG_IA32_EMULATION */
-#endif		/* CONFIG_X86_64 */
-
+/*
+ * Set up the CPU state needed to execute SYSENTER/SYSEXIT instructions
+ * on 32-bit kernels:
+ */
 #ifdef CONFIG_X86_32
 void enable_sep_cpu(void)
 {
-	int cpu = get_cpu();
-	struct tss_struct *tss = &per_cpu(init_tss, cpu);
+	struct tss_struct *tss;
+	int cpu;
 
-	if (!boot_cpu_has(X86_FEATURE_SEP)) {
-		put_cpu();
-		return;
-	}
+	cpu = get_cpu();
+	tss = &per_cpu(cpu_tss, cpu);
+
+	if (!boot_cpu_has(X86_FEATURE_SEP))
+		goto out;
+
+	/*
+	 * We cache MSR_IA32_SYSENTER_CS's value in the TSS's ss1 field --
+	 * see the big comment in struct x86_hw_tss's definition.
+	 */
 
 	tss->x86_tss.ss1 = __KERNEL_CS;
-	tss->x86_tss.sp1 = sizeof(struct tss_struct) + (unsigned long) tss;
-	wrmsr(MSR_IA32_SYSENTER_CS, __KERNEL_CS, 0);
-	wrmsr(MSR_IA32_SYSENTER_ESP, tss->x86_tss.sp1, 0);
-	wrmsr(MSR_IA32_SYSENTER_EIP, (unsigned long) ia32_sysenter_target, 0);
+	wrmsr(MSR_IA32_SYSENTER_CS, tss->x86_tss.ss1, 0);
+
+	wrmsr(MSR_IA32_SYSENTER_ESP,
+	      (unsigned long)tss + offsetofend(struct tss_struct, SYSENTER_stack),
+	      0);
+
+	wrmsr(MSR_IA32_SYSENTER_EIP, (unsigned long)ia32_sysenter_target, 0);
+
+out:
 	put_cpu();
 }
 #endif
@@ -1118,7 +1117,7 @@ static __init int setup_disablecpuid(char *arg)
 __setup("clearcpuid=", setup_disablecpuid);
 
 DEFINE_PER_CPU(unsigned long, kernel_stack) =
-	(unsigned long)&init_thread_union - KERNEL_STACK_OFFSET + THREAD_SIZE;
+	(unsigned long)&init_thread_union + THREAD_SIZE;
 EXPORT_PER_CPU_SYMBOL(kernel_stack);
 
 #ifdef CONFIG_X86_64
@@ -1130,8 +1129,8 @@ DEFINE_PER_CPU_FIRST(union irq_stack_union,
 		     irq_stack_union) __aligned(PAGE_SIZE) __visible;
 
 /*
- * The following four percpu variables are hot.  Align current_task to
- * cacheline size such that all four fall in the same cacheline.
+ * The following percpu variables are hot.  Align current_task to
+ * cacheline size such that they fall in the same cacheline.
  */
 DEFINE_PER_CPU(struct task_struct *, current_task) ____cacheline_aligned =
 	&init_task;
@@ -1171,10 +1170,23 @@ void syscall_init(void)
 	 */
 	wrmsrl(MSR_STAR,  ((u64)__USER32_CS)<<48  | ((u64)__KERNEL_CS)<<32);
 	wrmsrl(MSR_LSTAR, system_call);
-	wrmsrl(MSR_CSTAR, ignore_sysret);
 
 #ifdef CONFIG_IA32_EMULATION
-	syscall32_cpu_init();
+	wrmsrl(MSR_CSTAR, ia32_cstar_target);
+	/*
+	 * This only works on Intel CPUs.
+	 * On AMD CPUs these MSRs are 32-bit, CPU truncates MSR_IA32_SYSENTER_EIP.
+	 * This does not cause SYSENTER to jump to the wrong location, because
+	 * AMD doesn't allow SYSENTER in long mode (either 32- or 64-bit).
+	 */
+	wrmsrl_safe(MSR_IA32_SYSENTER_CS, (u64)__KERNEL_CS);
+	wrmsrl_safe(MSR_IA32_SYSENTER_ESP, 0ULL);
+	wrmsrl_safe(MSR_IA32_SYSENTER_EIP, (u64)ia32_sysenter_target);
+#else
+	wrmsrl(MSR_CSTAR, ignore_sysret);
+	wrmsrl_safe(MSR_IA32_SYSENTER_CS, (u64)GDT_ENTRY_INVALID_SEG);
+	wrmsrl_safe(MSR_IA32_SYSENTER_ESP, 0ULL);
+	wrmsrl_safe(MSR_IA32_SYSENTER_EIP, 0ULL);
 #endif
 
 	/* Flags to clear on syscall */
@@ -1226,6 +1238,15 @@ DEFINE_PER_CPU(int, __preempt_count) = INIT_PREEMPT_COUNT;
 EXPORT_PER_CPU_SYMBOL(__preempt_count);
 DEFINE_PER_CPU(struct task_struct *, fpu_owner_task);
 
+/*
+ * On x86_32, vm86 modifies tss.sp0, so sp0 isn't a reliable way to find
+ * the top of the kernel stack.  Use an extra percpu variable to track the
+ * top of the kernel stack directly.
+ */
+DEFINE_PER_CPU(unsigned long, cpu_current_top_of_stack) =
+	(unsigned long)&init_thread_union + THREAD_SIZE;
+EXPORT_PER_CPU_SYMBOL(cpu_current_top_of_stack);
+
 #ifdef CONFIG_CC_STACKPROTECTOR
 DEFINE_PER_CPU_ALIGNED(struct stack_canary, stack_canary);
 #endif
@@ -1307,7 +1328,7 @@ void cpu_init(void)
 	 */
 	load_ucode_ap();
 
-	t = &per_cpu(init_tss, cpu);
+	t = &per_cpu(cpu_tss, cpu);
 	oist = &per_cpu(orig_ist, cpu);
 
 #ifdef CONFIG_NUMA
@@ -1391,11 +1412,17 @@ void cpu_init(void)
 {
 	int cpu = smp_processor_id();
 	struct task_struct *curr = current;
-	struct tss_struct *t = &per_cpu(init_tss, cpu);
+	struct tss_struct *t = &per_cpu(cpu_tss, cpu);
 	struct thread_struct *thread = &curr->thread;
 
 	wait_for_master_cpu(cpu);
 
+	/*
+	 * Initialize the CR4 shadow before doing anything that could
+	 * try to read it.
+	 */
+	cr4_init_shadow();
+
 	show_ucode_info_early();
 
 	printk(KERN_INFO "Initializing CPU#%d\n", cpu);
diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c
index 94d7dcb..50163fa 100644
--- a/arch/x86/kernel/cpu/intel.c
+++ b/arch/x86/kernel/cpu/intel.c
@@ -565,8 +565,8 @@ static const struct _tlb_table intel_tlb_table[] = {
 	{ 0xb2, TLB_INST_4K,		64,	" TLB_INST 4KByte pages, 4-way set associative" },
 	{ 0xb3, TLB_DATA_4K,		128,	" TLB_DATA 4 KByte pages, 4-way set associative" },
 	{ 0xb4, TLB_DATA_4K,		256,	" TLB_DATA 4 KByte pages, 4-way associative" },
-	{ 0xb5, TLB_INST_4K,		64,	" TLB_INST 4 KByte pages, 8-way set ssociative" },
-	{ 0xb6, TLB_INST_4K,		128,	" TLB_INST 4 KByte pages, 8-way set ssociative" },
+	{ 0xb5, TLB_INST_4K,		64,	" TLB_INST 4 KByte pages, 8-way set associative" },
+	{ 0xb6, TLB_INST_4K,		128,	" TLB_INST 4 KByte pages, 8-way set associative" },
 	{ 0xba, TLB_DATA_4K,		64,	" TLB_DATA 4 KByte pages, 4-way associative" },
 	{ 0xc0, TLB_DATA_4K_4M,		8,	" TLB_DATA 4 KByte and 4 MByte pages, 4-way associative" },
 	{ 0xc1, STLB_4K_2M,		1024,	" STLB 4 KByte and 2 MByte pages, 8-way associative" },
diff --git a/arch/x86/kernel/cpu/intel_cacheinfo.c b/arch/x86/kernel/cpu/intel_cacheinfo.c
index 6596433..edcb0e2 100644
--- a/arch/x86/kernel/cpu/intel_cacheinfo.c
+++ b/arch/x86/kernel/cpu/intel_cacheinfo.c
@@ -7,16 +7,14 @@
  *	Andi Kleen / Andreas Herrmann	: CPUID4 emulation on AMD.
  */
 
-#include <linux/init.h>
 #include <linux/slab.h>
-#include <linux/device.h>
-#include <linux/compiler.h>
+#include <linux/cacheinfo.h>
 #include <linux/cpu.h>
 #include <linux/sched.h>
+#include <linux/sysfs.h>
 #include <linux/pci.h>
 
 #include <asm/processor.h>
-#include <linux/smp.h>
 #include <asm/amd_nb.h>
 #include <asm/smp.h>
 
@@ -116,10 +114,10 @@ static const struct _cache_table cache_table[] =
 
 
 enum _cache_type {
-	CACHE_TYPE_NULL	= 0,
-	CACHE_TYPE_DATA = 1,
-	CACHE_TYPE_INST = 2,
-	CACHE_TYPE_UNIFIED = 3
+	CTYPE_NULL = 0,
+	CTYPE_DATA = 1,
+	CTYPE_INST = 2,
+	CTYPE_UNIFIED = 3
 };
 
 union _cpuid4_leaf_eax {
@@ -159,11 +157,6 @@ struct _cpuid4_info_regs {
 	struct amd_northbridge *nb;
 };
 
-struct _cpuid4_info {
-	struct _cpuid4_info_regs base;
-	DECLARE_BITMAP(shared_cpu_map, NR_CPUS);
-};
-
 unsigned short			num_cache_leaves;
 
 /* AMD doesn't have CPUID4. Emulate it here to report the same
@@ -220,6 +213,13 @@ static const unsigned short assocs[] = {
 static const unsigned char levels[] = { 1, 1, 2, 3 };
 static const unsigned char types[] = { 1, 2, 3, 3 };
 
+static const enum cache_type cache_type_map[] = {
+	[CTYPE_NULL] = CACHE_TYPE_NOCACHE,
+	[CTYPE_DATA] = CACHE_TYPE_DATA,
+	[CTYPE_INST] = CACHE_TYPE_INST,
+	[CTYPE_UNIFIED] = CACHE_TYPE_UNIFIED,
+};
+
 static void
 amd_cpuid4(int leaf, union _cpuid4_leaf_eax *eax,
 		     union _cpuid4_leaf_ebx *ebx,
@@ -291,14 +291,8 @@ amd_cpuid4(int leaf, union _cpuid4_leaf_eax *eax,
 		(ebx->split.ways_of_associativity + 1) - 1;
 }
 
-struct _cache_attr {
-	struct attribute attr;
-	ssize_t (*show)(struct _cpuid4_info *, char *, unsigned int);
-	ssize_t (*store)(struct _cpuid4_info *, const char *, size_t count,
-			 unsigned int);
-};
-
 #if defined(CONFIG_AMD_NB) && defined(CONFIG_SYSFS)
+
 /*
  * L3 cache descriptors
  */
@@ -325,20 +319,6 @@ static void amd_calc_l3_indices(struct amd_northbridge *nb)
 	l3->indices = (max(max3(sc0, sc1, sc2), sc3) << 10) - 1;
 }
 
-static void amd_init_l3_cache(struct _cpuid4_info_regs *this_leaf, int index)
-{
-	int node;
-
-	/* only for L3, and not in virtualized environments */
-	if (index < 3)
-		return;
-
-	node = amd_get_nb_id(smp_processor_id());
-	this_leaf->nb = node_to_amd_nb(node);
-	if (this_leaf->nb && !this_leaf->nb->l3_cache.indices)
-		amd_calc_l3_indices(this_leaf->nb);
-}
-
 /*
  * check whether a slot used for disabling an L3 index is occupied.
  * @l3: L3 cache descriptor
@@ -359,15 +339,13 @@ int amd_get_l3_disable_slot(struct amd_northbridge *nb, unsigned slot)
 	return -1;
 }
 
-static ssize_t show_cache_disable(struct _cpuid4_info *this_leaf, char *buf,
+static ssize_t show_cache_disable(struct cacheinfo *this_leaf, char *buf,
 				  unsigned int slot)
 {
 	int index;
+	struct amd_northbridge *nb = this_leaf->priv;
 
-	if (!this_leaf->base.nb || !amd_nb_has_feature(AMD_NB_L3_INDEX_DISABLE))
-		return -EINVAL;
-
-	index = amd_get_l3_disable_slot(this_leaf->base.nb, slot);
+	index = amd_get_l3_disable_slot(nb, slot);
 	if (index >= 0)
 		return sprintf(buf, "%d\n", index);
 
@@ -376,9 +354,10 @@ static ssize_t show_cache_disable(struct _cpuid4_info *this_leaf, char *buf,
 
 #define SHOW_CACHE_DISABLE(slot)					\
 static ssize_t								\
-show_cache_disable_##slot(struct _cpuid4_info *this_leaf, char *buf,	\
-			  unsigned int cpu)				\
+cache_disable_##slot##_show(struct device *dev,				\
+			    struct device_attribute *attr, char *buf)	\
 {									\
+	struct cacheinfo *this_leaf = dev_get_drvdata(dev);		\
 	return show_cache_disable(this_leaf, buf, slot);		\
 }
 SHOW_CACHE_DISABLE(0)
@@ -446,25 +425,23 @@ int amd_set_l3_disable_slot(struct amd_northbridge *nb, int cpu, unsigned slot,
 	return 0;
 }
 
-static ssize_t store_cache_disable(struct _cpuid4_info *this_leaf,
-				  const char *buf, size_t count,
-				  unsigned int slot)
+static ssize_t store_cache_disable(struct cacheinfo *this_leaf,
+				   const char *buf, size_t count,
+				   unsigned int slot)
 {
 	unsigned long val = 0;
 	int cpu, err = 0;
+	struct amd_northbridge *nb = this_leaf->priv;
 
 	if (!capable(CAP_SYS_ADMIN))
 		return -EPERM;
 
-	if (!this_leaf->base.nb || !amd_nb_has_feature(AMD_NB_L3_INDEX_DISABLE))
-		return -EINVAL;
-
-	cpu = cpumask_first(to_cpumask(this_leaf->shared_cpu_map));
+	cpu = cpumask_first(&this_leaf->shared_cpu_map);
 
 	if (kstrtoul(buf, 10, &val) < 0)
 		return -EINVAL;
 
-	err = amd_set_l3_disable_slot(this_leaf->base.nb, cpu, slot, val);
+	err = amd_set_l3_disable_slot(nb, cpu, slot, val);
 	if (err) {
 		if (err == -EEXIST)
 			pr_warning("L3 slot %d in use/index already disabled!\n",
@@ -476,41 +453,36 @@ static ssize_t store_cache_disable(struct _cpuid4_info *this_leaf,
 
 #define STORE_CACHE_DISABLE(slot)					\
 static ssize_t								\
-store_cache_disable_##slot(struct _cpuid4_info *this_leaf,		\
-			   const char *buf, size_t count,		\
-			   unsigned int cpu)				\
+cache_disable_##slot##_store(struct device *dev,			\
+			     struct device_attribute *attr,		\
+			     const char *buf, size_t count)		\
 {									\
+	struct cacheinfo *this_leaf = dev_get_drvdata(dev);		\
 	return store_cache_disable(this_leaf, buf, count, slot);	\
 }
 STORE_CACHE_DISABLE(0)
 STORE_CACHE_DISABLE(1)
 
-static struct _cache_attr cache_disable_0 = __ATTR(cache_disable_0, 0644,
-		show_cache_disable_0, store_cache_disable_0);
-static struct _cache_attr cache_disable_1 = __ATTR(cache_disable_1, 0644,
-		show_cache_disable_1, store_cache_disable_1);
-
-static ssize_t
-show_subcaches(struct _cpuid4_info *this_leaf, char *buf, unsigned int cpu)
+static ssize_t subcaches_show(struct device *dev,
+			      struct device_attribute *attr, char *buf)
 {
-	if (!this_leaf->base.nb || !amd_nb_has_feature(AMD_NB_L3_PARTITIONING))
-		return -EINVAL;
+	struct cacheinfo *this_leaf = dev_get_drvdata(dev);
+	int cpu = cpumask_first(&this_leaf->shared_cpu_map);
 
 	return sprintf(buf, "%x\n", amd_get_subcaches(cpu));
 }
 
-static ssize_t
-store_subcaches(struct _cpuid4_info *this_leaf, const char *buf, size_t count,
-		unsigned int cpu)
+static ssize_t subcaches_store(struct device *dev,
+			       struct device_attribute *attr,
+			       const char *buf, size_t count)
 {
+	struct cacheinfo *this_leaf = dev_get_drvdata(dev);
+	int cpu = cpumask_first(&this_leaf->shared_cpu_map);
 	unsigned long val;
 
 	if (!capable(CAP_SYS_ADMIN))
 		return -EPERM;
 
-	if (!this_leaf->base.nb || !amd_nb_has_feature(AMD_NB_L3_PARTITIONING))
-		return -EINVAL;
-
 	if (kstrtoul(buf, 16, &val) < 0)
 		return -EINVAL;
 
@@ -520,9 +492,92 @@ store_subcaches(struct _cpuid4_info *this_leaf, const char *buf, size_t count,
 	return count;
 }
 
-static struct _cache_attr subcaches =
-	__ATTR(subcaches, 0644, show_subcaches, store_subcaches);
+static DEVICE_ATTR_RW(cache_disable_0);
+static DEVICE_ATTR_RW(cache_disable_1);
+static DEVICE_ATTR_RW(subcaches);
+
+static umode_t
+cache_private_attrs_is_visible(struct kobject *kobj,
+			       struct attribute *attr, int unused)
+{
+	struct device *dev = kobj_to_dev(kobj);
+	struct cacheinfo *this_leaf = dev_get_drvdata(dev);
+	umode_t mode = attr->mode;
+
+	if (!this_leaf->priv)
+		return 0;
+
+	if ((attr == &dev_attr_subcaches.attr) &&
+	    amd_nb_has_feature(AMD_NB_L3_PARTITIONING))
+		return mode;
+
+	if ((attr == &dev_attr_cache_disable_0.attr ||
+	     attr == &dev_attr_cache_disable_1.attr) &&
+	    amd_nb_has_feature(AMD_NB_L3_INDEX_DISABLE))
+		return mode;
+
+	return 0;
+}
+
+static struct attribute_group cache_private_group = {
+	.is_visible = cache_private_attrs_is_visible,
+};
+
+static void init_amd_l3_attrs(void)
+{
+	int n = 1;
+	static struct attribute **amd_l3_attrs;
+
+	if (amd_l3_attrs) /* already initialized */
+		return;
+
+	if (amd_nb_has_feature(AMD_NB_L3_INDEX_DISABLE))
+		n += 2;
+	if (amd_nb_has_feature(AMD_NB_L3_PARTITIONING))
+		n += 1;
+
+	amd_l3_attrs = kcalloc(n, sizeof(*amd_l3_attrs), GFP_KERNEL);
+	if (!amd_l3_attrs)
+		return;
+
+	n = 0;
+	if (amd_nb_has_feature(AMD_NB_L3_INDEX_DISABLE)) {
+		amd_l3_attrs[n++] = &dev_attr_cache_disable_0.attr;
+		amd_l3_attrs[n++] = &dev_attr_cache_disable_1.attr;
+	}
+	if (amd_nb_has_feature(AMD_NB_L3_PARTITIONING))
+		amd_l3_attrs[n++] = &dev_attr_subcaches.attr;
 
+	cache_private_group.attrs = amd_l3_attrs;
+}
+
+const struct attribute_group *
+cache_get_priv_group(struct cacheinfo *this_leaf)
+{
+	struct amd_northbridge *nb = this_leaf->priv;
+
+	if (this_leaf->level < 3 || !nb)
+		return NULL;
+
+	if (nb && nb->l3_cache.indices)
+		init_amd_l3_attrs();
+
+	return &cache_private_group;
+}
+
+static void amd_init_l3_cache(struct _cpuid4_info_regs *this_leaf, int index)
+{
+	int node;
+
+	/* only for L3, and not in virtualized environments */
+	if (index < 3)
+		return;
+
+	node = amd_get_nb_id(smp_processor_id());
+	this_leaf->nb = node_to_amd_nb(node);
+	if (this_leaf->nb && !this_leaf->nb->l3_cache.indices)
+		amd_calc_l3_indices(this_leaf->nb);
+}
 #else
 #define amd_init_l3_cache(x, y)
 #endif  /* CONFIG_AMD_NB && CONFIG_SYSFS */
@@ -546,7 +601,7 @@ cpuid4_cache_lookup_regs(int index, struct _cpuid4_info_regs *this_leaf)
 		cpuid_count(4, index, &eax.full, &ebx.full, &ecx.full, &edx);
 	}
 
-	if (eax.split.type == CACHE_TYPE_NULL)
+	if (eax.split.type == CTYPE_NULL)
 		return -EIO; /* better error ? */
 
 	this_leaf->eax = eax;
@@ -575,7 +630,7 @@ static int find_num_cache_leaves(struct cpuinfo_x86 *c)
 		/* Do cpuid(op) loop to find out num_cache_leaves */
 		cpuid_count(op, i, &eax, &ebx, &ecx, &edx);
 		cache_eax.full = eax;
-	} while (cache_eax.split.type != CACHE_TYPE_NULL);
+	} while (cache_eax.split.type != CTYPE_NULL);
 	return i;
 }
 
@@ -626,9 +681,9 @@ unsigned int init_intel_cacheinfo(struct cpuinfo_x86 *c)
 
 			switch (this_leaf.eax.split.level) {
 			case 1:
-				if (this_leaf.eax.split.type == CACHE_TYPE_DATA)
+				if (this_leaf.eax.split.type == CTYPE_DATA)
 					new_l1d = this_leaf.size/1024;
-				else if (this_leaf.eax.split.type == CACHE_TYPE_INST)
+				else if (this_leaf.eax.split.type == CTYPE_INST)
 					new_l1i = this_leaf.size/1024;
 				break;
 			case 2:
@@ -747,55 +802,52 @@ unsigned int init_intel_cacheinfo(struct cpuinfo_x86 *c)
 	return l2;
 }
 
-#ifdef CONFIG_SYSFS
-
-/* pointer to _cpuid4_info array (for each cache leaf) */
-static DEFINE_PER_CPU(struct _cpuid4_info *, ici_cpuid4_info);
-#define CPUID4_INFO_IDX(x, y)	(&((per_cpu(ici_cpuid4_info, x))[y]))
-
-#ifdef CONFIG_SMP
-
-static int cache_shared_amd_cpu_map_setup(unsigned int cpu, int index)
+static int __cache_amd_cpumap_setup(unsigned int cpu, int index,
+				    struct _cpuid4_info_regs *base)
 {
-	struct _cpuid4_info *this_leaf;
+	struct cpu_cacheinfo *this_cpu_ci = get_cpu_cacheinfo(cpu);
+	struct cacheinfo *this_leaf;
 	int i, sibling;
 
 	if (cpu_has_topoext) {
 		unsigned int apicid, nshared, first, last;
 
-		if (!per_cpu(ici_cpuid4_info, cpu))
-			return 0;
-
-		this_leaf = CPUID4_INFO_IDX(cpu, index);
-		nshared = this_leaf->base.eax.split.num_threads_sharing + 1;
+		this_leaf = this_cpu_ci->info_list + index;
+		nshared = base->eax.split.num_threads_sharing + 1;
 		apicid = cpu_data(cpu).apicid;
 		first = apicid - (apicid % nshared);
 		last = first + nshared - 1;
 
 		for_each_online_cpu(i) {
+			this_cpu_ci = get_cpu_cacheinfo(i);
+			if (!this_cpu_ci->info_list)
+				continue;
+
 			apicid = cpu_data(i).apicid;
 			if ((apicid < first) || (apicid > last))
 				continue;
-			if (!per_cpu(ici_cpuid4_info, i))
-				continue;
-			this_leaf = CPUID4_INFO_IDX(i, index);
+
+			this_leaf = this_cpu_ci->info_list + index;
 
 			for_each_online_cpu(sibling) {
 				apicid = cpu_data(sibling).apicid;
 				if ((apicid < first) || (apicid > last))
 					continue;
-				set_bit(sibling, this_leaf->shared_cpu_map);
+				cpumask_set_cpu(sibling,
+						&this_leaf->shared_cpu_map);
 			}
 		}
 	} else if (index == 3) {
 		for_each_cpu(i, cpu_llc_shared_mask(cpu)) {
-			if (!per_cpu(ici_cpuid4_info, i))
+			this_cpu_ci = get_cpu_cacheinfo(i);
+			if (!this_cpu_ci->info_list)
 				continue;
-			this_leaf = CPUID4_INFO_IDX(i, index);
+			this_leaf = this_cpu_ci->info_list + index;
 			for_each_cpu(sibling, cpu_llc_shared_mask(cpu)) {
 				if (!cpu_online(sibling))
 					continue;
-				set_bit(sibling, this_leaf->shared_cpu_map);
+				cpumask_set_cpu(sibling,
+						&this_leaf->shared_cpu_map);
 			}
 		}
 	} else
@@ -804,457 +856,86 @@ static int cache_shared_amd_cpu_map_setup(unsigned int cpu, int index)
 	return 1;
 }
 
-static void cache_shared_cpu_map_setup(unsigned int cpu, int index)
+static void __cache_cpumap_setup(unsigned int cpu, int index,
+				 struct _cpuid4_info_regs *base)
 {
-	struct _cpuid4_info *this_leaf, *sibling_leaf;
+	struct cpu_cacheinfo *this_cpu_ci = get_cpu_cacheinfo(cpu);
+	struct cacheinfo *this_leaf, *sibling_leaf;
 	unsigned long num_threads_sharing;
 	int index_msb, i;
 	struct cpuinfo_x86 *c = &cpu_data(cpu);
 
 	if (c->x86_vendor == X86_VENDOR_AMD) {
-		if (cache_shared_amd_cpu_map_setup(cpu, index))
+		if (__cache_amd_cpumap_setup(cpu, index, base))
 			return;
 	}
 
-	this_leaf = CPUID4_INFO_IDX(cpu, index);
-	num_threads_sharing = 1 + this_leaf->base.eax.split.num_threads_sharing;
+	this_leaf = this_cpu_ci->info_list + index;
+	num_threads_sharing = 1 + base->eax.split.num_threads_sharing;
 
+	cpumask_set_cpu(cpu, &this_leaf->shared_cpu_map);
 	if (num_threads_sharing == 1)
-		cpumask_set_cpu(cpu, to_cpumask(this_leaf->shared_cpu_map));
-	else {
-		index_msb = get_count_order(num_threads_sharing);
-
-		for_each_online_cpu(i) {
-			if (cpu_data(i).apicid >> index_msb ==
-			    c->apicid >> index_msb) {
-				cpumask_set_cpu(i,
-					to_cpumask(this_leaf->shared_cpu_map));
-				if (i != cpu && per_cpu(ici_cpuid4_info, i))  {
-					sibling_leaf =
-						CPUID4_INFO_IDX(i, index);
-					cpumask_set_cpu(cpu, to_cpumask(
-						sibling_leaf->shared_cpu_map));
-				}
-			}
-		}
-	}
-}
-static void cache_remove_shared_cpu_map(unsigned int cpu, int index)
-{
-	struct _cpuid4_info	*this_leaf, *sibling_leaf;
-	int sibling;
-
-	this_leaf = CPUID4_INFO_IDX(cpu, index);
-	for_each_cpu(sibling, to_cpumask(this_leaf->shared_cpu_map)) {
-		sibling_leaf = CPUID4_INFO_IDX(sibling, index);
-		cpumask_clear_cpu(cpu,
-				  to_cpumask(sibling_leaf->shared_cpu_map));
-	}
-}
-#else
-static void cache_shared_cpu_map_setup(unsigned int cpu, int index)
-{
-}
-
-static void cache_remove_shared_cpu_map(unsigned int cpu, int index)
-{
-}
-#endif
-
-static void free_cache_attributes(unsigned int cpu)
-{
-	int i;
-
-	for (i = 0; i < num_cache_leaves; i++)
-		cache_remove_shared_cpu_map(cpu, i);
-
-	kfree(per_cpu(ici_cpuid4_info, cpu));
-	per_cpu(ici_cpuid4_info, cpu) = NULL;
-}
-
-static void get_cpu_leaves(void *_retval)
-{
-	int j, *retval = _retval, cpu = smp_processor_id();
+		return;
 
-	/* Do cpuid and store the results */
-	for (j = 0; j < num_cache_leaves; j++) {
-		struct _cpuid4_info *this_leaf = CPUID4_INFO_IDX(cpu, j);
+	index_msb = get_count_order(num_threads_sharing);
 
-		*retval = cpuid4_cache_lookup_regs(j, &this_leaf->base);
-		if (unlikely(*retval < 0)) {
-			int i;
+	for_each_online_cpu(i)
+		if (cpu_data(i).apicid >> index_msb == c->apicid >> index_msb) {
+			struct cpu_cacheinfo *sib_cpu_ci = get_cpu_cacheinfo(i);
 
-			for (i = 0; i < j; i++)
-				cache_remove_shared_cpu_map(cpu, i);
-			break;
+			if (i == cpu || !sib_cpu_ci->info_list)
+				continue;/* skip if itself or no cacheinfo */
+			sibling_leaf = sib_cpu_ci->info_list + index;
+			cpumask_set_cpu(i, &this_leaf->shared_cpu_map);
+			cpumask_set_cpu(cpu, &sibling_leaf->shared_cpu_map);
 		}
-		cache_shared_cpu_map_setup(cpu, j);
-	}
 }
 
-static int detect_cache_attributes(unsigned int cpu)
+static void ci_leaf_init(struct cacheinfo *this_leaf,
+			 struct _cpuid4_info_regs *base)
 {
-	int			retval;
-
-	if (num_cache_leaves == 0)
-		return -ENOENT;
-
-	per_cpu(ici_cpuid4_info, cpu) = kzalloc(
-	    sizeof(struct _cpuid4_info) * num_cache_leaves, GFP_KERNEL);
-	if (per_cpu(ici_cpuid4_info, cpu) == NULL)
-		return -ENOMEM;
-
-	smp_call_function_single(cpu, get_cpu_leaves, &retval, true);
-	if (retval) {
-		kfree(per_cpu(ici_cpuid4_info, cpu));
-		per_cpu(ici_cpuid4_info, cpu) = NULL;
-	}
-
-	return retval;
+	this_leaf->level = base->eax.split.level;
+	this_leaf->type = cache_type_map[base->eax.split.type];
+	this_leaf->coherency_line_size =
+				base->ebx.split.coherency_line_size + 1;
+	this_leaf->ways_of_associativity =
+				base->ebx.split.ways_of_associativity + 1;
+	this_leaf->size = base->size;
+	this_leaf->number_of_sets = base->ecx.split.number_of_sets + 1;
+	this_leaf->physical_line_partition =
+				base->ebx.split.physical_line_partition + 1;
+	this_leaf->priv = base->nb;
 }
 
-#include <linux/kobject.h>
-#include <linux/sysfs.h>
-#include <linux/cpu.h>
-
-/* pointer to kobject for cpuX/cache */
-static DEFINE_PER_CPU(struct kobject *, ici_cache_kobject);
-
-struct _index_kobject {
-	struct kobject kobj;
-	unsigned int cpu;
-	unsigned short index;
-};
-
-/* pointer to array of kobjects for cpuX/cache/indexY */
-static DEFINE_PER_CPU(struct _index_kobject *, ici_index_kobject);
-#define INDEX_KOBJECT_PTR(x, y)		(&((per_cpu(ici_index_kobject, x))[y]))
-
-#define show_one_plus(file_name, object, val)				\
-static ssize_t show_##file_name(struct _cpuid4_info *this_leaf, char *buf, \
-				unsigned int cpu)			\
-{									\
-	return sprintf(buf, "%lu\n", (unsigned long)this_leaf->object + val); \
-}
-
-show_one_plus(level, base.eax.split.level, 0);
-show_one_plus(coherency_line_size, base.ebx.split.coherency_line_size, 1);
-show_one_plus(physical_line_partition, base.ebx.split.physical_line_partition, 1);
-show_one_plus(ways_of_associativity, base.ebx.split.ways_of_associativity, 1);
-show_one_plus(number_of_sets, base.ecx.split.number_of_sets, 1);
-
-static ssize_t show_size(struct _cpuid4_info *this_leaf, char *buf,
-			 unsigned int cpu)
-{
-	return sprintf(buf, "%luK\n", this_leaf->base.size / 1024);
-}
-
-static ssize_t show_shared_cpu_map_func(struct _cpuid4_info *this_leaf,
-					int type, char *buf)
-{
-	const struct cpumask *mask = to_cpumask(this_leaf->shared_cpu_map);
-	int ret;
-
-	if (type)
-		ret = scnprintf(buf, PAGE_SIZE - 1, "%*pbl",
-				cpumask_pr_args(mask));
-	else
-		ret = scnprintf(buf, PAGE_SIZE - 1, "%*pb",
-				cpumask_pr_args(mask));
-	buf[ret++] = '\n';
-	buf[ret] = '\0';
-	return ret;
-}
-
-static inline ssize_t show_shared_cpu_map(struct _cpuid4_info *leaf, char *buf,
-					  unsigned int cpu)
+static int __init_cache_level(unsigned int cpu)
 {
-	return show_shared_cpu_map_func(leaf, 0, buf);
-}
-
-static inline ssize_t show_shared_cpu_list(struct _cpuid4_info *leaf, char *buf,
-					   unsigned int cpu)
-{
-	return show_shared_cpu_map_func(leaf, 1, buf);
-}
+	struct cpu_cacheinfo *this_cpu_ci = get_cpu_cacheinfo(cpu);
 
-static ssize_t show_type(struct _cpuid4_info *this_leaf, char *buf,
-			 unsigned int cpu)
-{
-	switch (this_leaf->base.eax.split.type) {
-	case CACHE_TYPE_DATA:
-		return sprintf(buf, "Data\n");
-	case CACHE_TYPE_INST:
-		return sprintf(buf, "Instruction\n");
-	case CACHE_TYPE_UNIFIED:
-		return sprintf(buf, "Unified\n");
-	default:
-		return sprintf(buf, "Unknown\n");
-	}
-}
-
-#define to_object(k)	container_of(k, struct _index_kobject, kobj)
-#define to_attr(a)	container_of(a, struct _cache_attr, attr)
-
-#define define_one_ro(_name) \
-static struct _cache_attr _name = \
-	__ATTR(_name, 0444, show_##_name, NULL)
-
-define_one_ro(level);
-define_one_ro(type);
-define_one_ro(coherency_line_size);
-define_one_ro(physical_line_partition);
-define_one_ro(ways_of_associativity);
-define_one_ro(number_of_sets);
-define_one_ro(size);
-define_one_ro(shared_cpu_map);
-define_one_ro(shared_cpu_list);
-
-static struct attribute *default_attrs[] = {
-	&type.attr,
-	&level.attr,
-	&coherency_line_size.attr,
-	&physical_line_partition.attr,
-	&ways_of_associativity.attr,
-	&number_of_sets.attr,
-	&size.attr,
-	&shared_cpu_map.attr,
-	&shared_cpu_list.attr,
-	NULL
-};
-
-#ifdef CONFIG_AMD_NB
-static struct attribute **amd_l3_attrs(void)
-{
-	static struct attribute **attrs;
-	int n;
-
-	if (attrs)
-		return attrs;
-
-	n = ARRAY_SIZE(default_attrs);
-
-	if (amd_nb_has_feature(AMD_NB_L3_INDEX_DISABLE))
-		n += 2;
-
-	if (amd_nb_has_feature(AMD_NB_L3_PARTITIONING))
-		n += 1;
-
-	attrs = kzalloc(n * sizeof (struct attribute *), GFP_KERNEL);
-	if (attrs == NULL)
-		return attrs = default_attrs;
-
-	for (n = 0; default_attrs[n]; n++)
-		attrs[n] = default_attrs[n];
-
-	if (amd_nb_has_feature(AMD_NB_L3_INDEX_DISABLE)) {
-		attrs[n++] = &cache_disable_0.attr;
-		attrs[n++] = &cache_disable_1.attr;
-	}
-
-	if (amd_nb_has_feature(AMD_NB_L3_PARTITIONING))
-		attrs[n++] = &subcaches.attr;
-
-	return attrs;
-}
-#endif
-
-static ssize_t show(struct kobject *kobj, struct attribute *attr, char *buf)
-{
-	struct _cache_attr *fattr = to_attr(attr);
-	struct _index_kobject *this_leaf = to_object(kobj);
-	ssize_t ret;
-
-	ret = fattr->show ?
-		fattr->show(CPUID4_INFO_IDX(this_leaf->cpu, this_leaf->index),
-			buf, this_leaf->cpu) :
-		0;
-	return ret;
-}
-
-static ssize_t store(struct kobject *kobj, struct attribute *attr,
-		     const char *buf, size_t count)
-{
-	struct _cache_attr *fattr = to_attr(attr);
-	struct _index_kobject *this_leaf = to_object(kobj);
-	ssize_t ret;
-
-	ret = fattr->store ?
-		fattr->store(CPUID4_INFO_IDX(this_leaf->cpu, this_leaf->index),
-			buf, count, this_leaf->cpu) :
-		0;
-	return ret;
-}
-
-static const struct sysfs_ops sysfs_ops = {
-	.show   = show,
-	.store  = store,
-};
-
-static struct kobj_type ktype_cache = {
-	.sysfs_ops	= &sysfs_ops,
-	.default_attrs	= default_attrs,
-};
-
-static struct kobj_type ktype_percpu_entry = {
-	.sysfs_ops	= &sysfs_ops,
-};
-
-static void cpuid4_cache_sysfs_exit(unsigned int cpu)
-{
-	kfree(per_cpu(ici_cache_kobject, cpu));
-	kfree(per_cpu(ici_index_kobject, cpu));
-	per_cpu(ici_cache_kobject, cpu) = NULL;
-	per_cpu(ici_index_kobject, cpu) = NULL;
-	free_cache_attributes(cpu);
-}
-
-static int cpuid4_cache_sysfs_init(unsigned int cpu)
-{
-	int err;
-
-	if (num_cache_leaves == 0)
+	if (!num_cache_leaves)
 		return -ENOENT;
-
-	err = detect_cache_attributes(cpu);
-	if (err)
-		return err;
-
-	/* Allocate all required memory */
-	per_cpu(ici_cache_kobject, cpu) =
-		kzalloc(sizeof(struct kobject), GFP_KERNEL);
-	if (unlikely(per_cpu(ici_cache_kobject, cpu) == NULL))
-		goto err_out;
-
-	per_cpu(ici_index_kobject, cpu) = kzalloc(
-	    sizeof(struct _index_kobject) * num_cache_leaves, GFP_KERNEL);
-	if (unlikely(per_cpu(ici_index_kobject, cpu) == NULL))
-		goto err_out;
-
+	if (!this_cpu_ci)
+		return -EINVAL;
+	this_cpu_ci->num_levels = 3;
+	this_cpu_ci->num_leaves = num_cache_leaves;
 	return 0;
-
-err_out:
-	cpuid4_cache_sysfs_exit(cpu);
-	return -ENOMEM;
 }
 
-static DECLARE_BITMAP(cache_dev_map, NR_CPUS);
-
-/* Add/Remove cache interface for CPU device */
-static int cache_add_dev(struct device *dev)
+static int __populate_cache_leaves(unsigned int cpu)
 {
-	unsigned int cpu = dev->id;
-	unsigned long i, j;
-	struct _index_kobject *this_object;
-	struct _cpuid4_info   *this_leaf;
-	int retval;
-
-	retval = cpuid4_cache_sysfs_init(cpu);
-	if (unlikely(retval < 0))
-		return retval;
-
-	retval = kobject_init_and_add(per_cpu(ici_cache_kobject, cpu),
-				      &ktype_percpu_entry,
-				      &dev->kobj, "%s", "cache");
-	if (retval < 0) {
-		cpuid4_cache_sysfs_exit(cpu);
-		return retval;
-	}
+	unsigned int idx, ret;
+	struct cpu_cacheinfo *this_cpu_ci = get_cpu_cacheinfo(cpu);
+	struct cacheinfo *this_leaf = this_cpu_ci->info_list;
+	struct _cpuid4_info_regs id4_regs = {};
 
-	for (i = 0; i < num_cache_leaves; i++) {
-		this_object = INDEX_KOBJECT_PTR(cpu, i);
-		this_object->cpu = cpu;
-		this_object->index = i;
-
-		this_leaf = CPUID4_INFO_IDX(cpu, i);
-
-		ktype_cache.default_attrs = default_attrs;
-#ifdef CONFIG_AMD_NB
-		if (this_leaf->base.nb)
-			ktype_cache.default_attrs = amd_l3_attrs();
-#endif
-		retval = kobject_init_and_add(&(this_object->kobj),
-					      &ktype_cache,
-					      per_cpu(ici_cache_kobject, cpu),
-					      "index%1lu", i);
-		if (unlikely(retval)) {
-			for (j = 0; j < i; j++)
-				kobject_put(&(INDEX_KOBJECT_PTR(cpu, j)->kobj));
-			kobject_put(per_cpu(ici_cache_kobject, cpu));
-			cpuid4_cache_sysfs_exit(cpu);
-			return retval;
-		}
-		kobject_uevent(&(this_object->kobj), KOBJ_ADD);
+	for (idx = 0; idx < this_cpu_ci->num_leaves; idx++) {
+		ret = cpuid4_cache_lookup_regs(idx, &id4_regs);
+		if (ret)
+			return ret;
+		ci_leaf_init(this_leaf++, &id4_regs);
+		__cache_cpumap_setup(cpu, idx, &id4_regs);
 	}
-	cpumask_set_cpu(cpu, to_cpumask(cache_dev_map));
-
-	kobject_uevent(per_cpu(ici_cache_kobject, cpu), KOBJ_ADD);
 	return 0;
 }
 
-static void cache_remove_dev(struct device *dev)
-{
-	unsigned int cpu = dev->id;
-	unsigned long i;
-
-	if (per_cpu(ici_cpuid4_info, cpu) == NULL)
-		return;
-	if (!cpumask_test_cpu(cpu, to_cpumask(cache_dev_map)))
-		return;
-	cpumask_clear_cpu(cpu, to_cpumask(cache_dev_map));
-
-	for (i = 0; i < num_cache_leaves; i++)
-		kobject_put(&(INDEX_KOBJECT_PTR(cpu, i)->kobj));
-	kobject_put(per_cpu(ici_cache_kobject, cpu));
-	cpuid4_cache_sysfs_exit(cpu);
-}
-
-static int cacheinfo_cpu_callback(struct notifier_block *nfb,
-				  unsigned long action, void *hcpu)
-{
-	unsigned int cpu = (unsigned long)hcpu;
-	struct device *dev;
-
-	dev = get_cpu_device(cpu);
-	switch (action) {
-	case CPU_ONLINE:
-	case CPU_ONLINE_FROZEN:
-		cache_add_dev(dev);
-		break;
-	case CPU_DEAD:
-	case CPU_DEAD_FROZEN:
-		cache_remove_dev(dev);
-		break;
-	}
-	return NOTIFY_OK;
-}
-
-static struct notifier_block cacheinfo_cpu_notifier = {
-	.notifier_call = cacheinfo_cpu_callback,
-};
-
-static int __init cache_sysfs_init(void)
-{
-	int i, err = 0;
-
-	if (num_cache_leaves == 0)
-		return 0;
-
-	cpu_notifier_register_begin();
-	for_each_online_cpu(i) {
-		struct device *dev = get_cpu_device(i);
-
-		err = cache_add_dev(dev);
-		if (err)
-			goto out;
-	}
-	__register_hotcpu_notifier(&cacheinfo_cpu_notifier);
-
-out:
-	cpu_notifier_register_done();
-	return err;
-}
-
-device_initcall(cache_sysfs_init);
-
-#endif
+DEFINE_SMP_CALL_CACHE_FUNCTION(init_cache_level)
+DEFINE_SMP_CALL_CACHE_FUNCTION(populate_cache_leaves)
diff --git a/arch/x86/kernel/cpu/mcheck/mce-internal.h b/arch/x86/kernel/cpu/mcheck/mce-internal.h
index 10b4690..fe32074 100644
--- a/arch/x86/kernel/cpu/mcheck/mce-internal.h
+++ b/arch/x86/kernel/cpu/mcheck/mce-internal.h
@@ -14,6 +14,7 @@ enum severity_level {
 };
 
 #define ATTR_LEN		16
+#define INITIAL_CHECK_INTERVAL	5 * 60 /* 5 minutes */
 
 /* One object for each MCE bank, shared by all CPUs */
 struct mce_bank {
@@ -23,20 +24,20 @@ struct mce_bank {
 	char			attrname[ATTR_LEN];	/* attribute name */
 };
 
-int mce_severity(struct mce *a, int tolerant, char **msg, bool is_excp);
+extern int (*mce_severity)(struct mce *a, int tolerant, char **msg, bool is_excp);
 struct dentry *mce_get_debugfs_dir(void);
 
 extern struct mce_bank *mce_banks;
 extern mce_banks_t mce_banks_ce_disabled;
 
 #ifdef CONFIG_X86_MCE_INTEL
-unsigned long mce_intel_adjust_timer(unsigned long interval);
-void mce_intel_cmci_poll(void);
+unsigned long cmci_intel_adjust_timer(unsigned long interval);
+bool mce_intel_cmci_poll(void);
 void mce_intel_hcpu_update(unsigned long cpu);
 void cmci_disable_bank(int bank);
 #else
-# define mce_intel_adjust_timer mce_adjust_timer_default
-static inline void mce_intel_cmci_poll(void) { }
+# define cmci_intel_adjust_timer mce_adjust_timer_default
+static inline bool mce_intel_cmci_poll(void) { return false; }
 static inline void mce_intel_hcpu_update(unsigned long cpu) { }
 static inline void cmci_disable_bank(int bank) { }
 #endif
diff --git a/arch/x86/kernel/cpu/mcheck/mce-severity.c b/arch/x86/kernel/cpu/mcheck/mce-severity.c
index 8bb4330..9c682c2 100644
--- a/arch/x86/kernel/cpu/mcheck/mce-severity.c
+++ b/arch/x86/kernel/cpu/mcheck/mce-severity.c
@@ -186,7 +186,61 @@ static int error_context(struct mce *m)
 	return ((m->cs & 3) == 3) ? IN_USER : IN_KERNEL;
 }
 
-int mce_severity(struct mce *m, int tolerant, char **msg, bool is_excp)
+/*
+ * See AMD Error Scope Hierarchy table in a newer BKDG. For example
+ * 49125_15h_Models_30h-3Fh_BKDG.pdf, section "RAS Features"
+ */
+static int mce_severity_amd(struct mce *m, int tolerant, char **msg, bool is_excp)
+{
+	enum context ctx = error_context(m);
+
+	/* Processor Context Corrupt, no need to fumble too much, die! */
+	if (m->status & MCI_STATUS_PCC)
+		return MCE_PANIC_SEVERITY;
+
+	if (m->status & MCI_STATUS_UC) {
+
+		/*
+		 * On older systems where overflow_recov flag is not present, we
+		 * should simply panic if an error overflow occurs. If
+		 * overflow_recov flag is present and set, then software can try
+		 * to at least kill process to prolong system operation.
+		 */
+		if (mce_flags.overflow_recov) {
+			/* software can try to contain */
+			if (!(m->mcgstatus & MCG_STATUS_RIPV) && (ctx == IN_KERNEL))
+				return MCE_PANIC_SEVERITY;
+
+			/* kill current process */
+			return MCE_AR_SEVERITY;
+		} else {
+			/* at least one error was not logged */
+			if (m->status & MCI_STATUS_OVER)
+				return MCE_PANIC_SEVERITY;
+		}
+
+		/*
+		 * For any other case, return MCE_UC_SEVERITY so that we log the
+		 * error and exit #MC handler.
+		 */
+		return MCE_UC_SEVERITY;
+	}
+
+	/*
+	 * deferred error: poll handler catches these and adds to mce_ring so
+	 * memory-failure can take recovery actions.
+	 */
+	if (m->status & MCI_STATUS_DEFERRED)
+		return MCE_DEFERRED_SEVERITY;
+
+	/*
+	 * corrected error: poll handler catches these and passes responsibility
+	 * of decoding the error to EDAC
+	 */
+	return MCE_KEEP_SEVERITY;
+}
+
+static int mce_severity_intel(struct mce *m, int tolerant, char **msg, bool is_excp)
 {
 	enum exception excp = (is_excp ? EXCP_CONTEXT : NO_EXCP);
 	enum context ctx = error_context(m);
@@ -216,6 +270,16 @@ int mce_severity(struct mce *m, int tolerant, char **msg, bool is_excp)
 	}
 }
 
+/* Default to mce_severity_intel */
+int (*mce_severity)(struct mce *m, int tolerant, char **msg, bool is_excp) =
+		    mce_severity_intel;
+
+void __init mcheck_vendor_init_severity(void)
+{
+	if (boot_cpu_data.x86_vendor == X86_VENDOR_AMD)
+		mce_severity = mce_severity_amd;
+}
+
 #ifdef CONFIG_DEBUG_FS
 static void *s_start(struct seq_file *f, loff_t *pos)
 {
diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c
index 3c036cb..e535533 100644
--- a/arch/x86/kernel/cpu/mcheck/mce.c
+++ b/arch/x86/kernel/cpu/mcheck/mce.c
@@ -60,11 +60,12 @@ static DEFINE_MUTEX(mce_chrdev_read_mutex);
 #define CREATE_TRACE_POINTS
 #include <trace/events/mce.h>
 
-#define SPINUNIT 100	/* 100ns */
+#define SPINUNIT		100	/* 100ns */
 
 DEFINE_PER_CPU(unsigned, mce_exception_count);
 
 struct mce_bank *mce_banks __read_mostly;
+struct mce_vendor_flags mce_flags __read_mostly;
 
 struct mca_config mca_cfg __read_mostly = {
 	.bootlog  = -1,
@@ -89,9 +90,6 @@ static DECLARE_WAIT_QUEUE_HEAD(mce_chrdev_wait);
 static DEFINE_PER_CPU(struct mce, mces_seen);
 static int			cpu_missing;
 
-/* CMCI storm detection filter */
-static DEFINE_PER_CPU(unsigned long, mce_polled_error);
-
 /*
  * MCA banks polled by the period polling timer for corrected events.
  * With Intel CMCI, this only has MCA banks which do not support CMCI (if any).
@@ -622,8 +620,9 @@ DEFINE_PER_CPU(unsigned, mce_poll_count);
  * is already totally * confused. In this case it's likely it will
  * not fully execute the machine check handler either.
  */
-void machine_check_poll(enum mcp_flags flags, mce_banks_t *b)
+bool machine_check_poll(enum mcp_flags flags, mce_banks_t *b)
 {
+	bool error_logged = false;
 	struct mce m;
 	int severity;
 	int i;
@@ -646,7 +645,7 @@ void machine_check_poll(enum mcp_flags flags, mce_banks_t *b)
 		if (!(m.status & MCI_STATUS_VAL))
 			continue;
 
-		this_cpu_write(mce_polled_error, 1);
+
 		/*
 		 * Uncorrected or signalled events are handled by the exception
 		 * handler when it is enabled, so don't process those here.
@@ -679,8 +678,10 @@ void machine_check_poll(enum mcp_flags flags, mce_banks_t *b)
 		 * Don't get the IP here because it's unlikely to
 		 * have anything to do with the actual error location.
 		 */
-		if (!(flags & MCP_DONTLOG) && !mca_cfg.dont_log_ce)
+		if (!(flags & MCP_DONTLOG) && !mca_cfg.dont_log_ce) {
+			error_logged = true;
 			mce_log(&m);
+		}
 
 		/*
 		 * Clear state for this bank.
@@ -694,6 +695,8 @@ void machine_check_poll(enum mcp_flags flags, mce_banks_t *b)
 	 */
 
 	sync_core();
+
+	return error_logged;
 }
 EXPORT_SYMBOL_GPL(machine_check_poll);
 
@@ -813,7 +816,7 @@ static void mce_reign(void)
 	 * other CPUs.
 	 */
 	if (m && global_worst >= MCE_PANIC_SEVERITY && mca_cfg.tolerant < 3)
-		mce_panic("Fatal Machine check", m, msg);
+		mce_panic("Fatal machine check", m, msg);
 
 	/*
 	 * For UC somewhere we let the CPU who detects it handle it.
@@ -826,7 +829,7 @@ static void mce_reign(void)
 	 * source or one CPU is hung. Panic.
 	 */
 	if (global_worst <= MCE_KEEP_SEVERITY && mca_cfg.tolerant < 3)
-		mce_panic("Machine check from unknown source", NULL, NULL);
+		mce_panic("Fatal machine check from unknown source", NULL, NULL);
 
 	/*
 	 * Now clear all the mces_seen so that they don't reappear on
@@ -1258,7 +1261,7 @@ void mce_log_therm_throt_event(__u64 status)
  * poller finds an MCE, poll 2x faster.  When the poller finds no more
  * errors, poll 2x slower (up to check_interval seconds).
  */
-static unsigned long check_interval = 5 * 60; /* 5 minutes */
+static unsigned long check_interval = INITIAL_CHECK_INTERVAL;
 
 static DEFINE_PER_CPU(unsigned long, mce_next_interval); /* in jiffies */
 static DEFINE_PER_CPU(struct timer_list, mce_timer);
@@ -1268,49 +1271,57 @@ static unsigned long mce_adjust_timer_default(unsigned long interval)
 	return interval;
 }
 
-static unsigned long (*mce_adjust_timer)(unsigned long interval) =
-	mce_adjust_timer_default;
+static unsigned long (*mce_adjust_timer)(unsigned long interval) = mce_adjust_timer_default;
 
-static int cmc_error_seen(void)
+static void __restart_timer(struct timer_list *t, unsigned long interval)
 {
-	unsigned long *v = this_cpu_ptr(&mce_polled_error);
+	unsigned long when = jiffies + interval;
+	unsigned long flags;
+
+	local_irq_save(flags);
 
-	return test_and_clear_bit(0, v);
+	if (timer_pending(t)) {
+		if (time_before(when, t->expires))
+			mod_timer_pinned(t, when);
+	} else {
+		t->expires = round_jiffies(when);
+		add_timer_on(t, smp_processor_id());
+	}
+
+	local_irq_restore(flags);
 }
 
 static void mce_timer_fn(unsigned long data)
 {
 	struct timer_list *t = this_cpu_ptr(&mce_timer);
+	int cpu = smp_processor_id();
 	unsigned long iv;
-	int notify;
 
-	WARN_ON(smp_processor_id() != data);
+	WARN_ON(cpu != data);
+
+	iv = __this_cpu_read(mce_next_interval);
 
 	if (mce_available(this_cpu_ptr(&cpu_info))) {
-		machine_check_poll(MCP_TIMESTAMP,
-				this_cpu_ptr(&mce_poll_banks));
-		mce_intel_cmci_poll();
+		machine_check_poll(MCP_TIMESTAMP, this_cpu_ptr(&mce_poll_banks));
+
+		if (mce_intel_cmci_poll()) {
+			iv = mce_adjust_timer(iv);
+			goto done;
+		}
 	}
 
 	/*
-	 * Alert userspace if needed.  If we logged an MCE, reduce the
-	 * polling interval, otherwise increase the polling interval.
+	 * Alert userspace if needed. If we logged an MCE, reduce the polling
+	 * interval, otherwise increase the polling interval.
 	 */
-	iv = __this_cpu_read(mce_next_interval);
-	notify = mce_notify_irq();
-	notify |= cmc_error_seen();
-	if (notify) {
+	if (mce_notify_irq())
 		iv = max(iv / 2, (unsigned long) HZ/100);
-	} else {
+	else
 		iv = min(iv * 2, round_jiffies_relative(check_interval * HZ));
-		iv = mce_adjust_timer(iv);
-	}
+
+done:
 	__this_cpu_write(mce_next_interval, iv);
-	/* Might have become 0 after CMCI storm subsided */
-	if (iv) {
-		t->expires = jiffies + iv;
-		add_timer_on(t, smp_processor_id());
-	}
+	__restart_timer(t, iv);
 }
 
 /*
@@ -1319,16 +1330,10 @@ static void mce_timer_fn(unsigned long data)
 void mce_timer_kick(unsigned long interval)
 {
 	struct timer_list *t = this_cpu_ptr(&mce_timer);
-	unsigned long when = jiffies + interval;
 	unsigned long iv = __this_cpu_read(mce_next_interval);
 
-	if (timer_pending(t)) {
-		if (time_before(when, t->expires))
-			mod_timer_pinned(t, when);
-	} else {
-		t->expires = round_jiffies(when);
-		add_timer_on(t, smp_processor_id());
-	}
+	__restart_timer(t, interval);
+
 	if (interval < iv)
 		__this_cpu_write(mce_next_interval, interval);
 }
@@ -1525,45 +1530,46 @@ static int __mcheck_cpu_apply_quirks(struct cpuinfo_x86 *c)
 		 * Various K7s with broken bank 0 around. Always disable
 		 * by default.
 		 */
-		 if (c->x86 == 6 && cfg->banks > 0)
+		if (c->x86 == 6 && cfg->banks > 0)
 			mce_banks[0].ctl = 0;
 
-		 /*
-		  * Turn off MC4_MISC thresholding banks on those models since
-		  * they're not supported there.
-		  */
-		 if (c->x86 == 0x15 &&
-		     (c->x86_model >= 0x10 && c->x86_model <= 0x1f)) {
-			 int i;
-			 u64 val, hwcr;
-			 bool need_toggle;
-			 u32 msrs[] = {
+		/*
+		 * overflow_recov is supported for F15h Models 00h-0fh
+		 * even though we don't have a CPUID bit for it.
+		 */
+		if (c->x86 == 0x15 && c->x86_model <= 0xf)
+			mce_flags.overflow_recov = 1;
+
+		/*
+		 * Turn off MC4_MISC thresholding banks on those models since
+		 * they're not supported there.
+		 */
+		if (c->x86 == 0x15 &&
+		    (c->x86_model >= 0x10 && c->x86_model <= 0x1f)) {
+			int i;
+			u64 hwcr;
+			bool need_toggle;
+			u32 msrs[] = {
 				0x00000413, /* MC4_MISC0 */
 				0xc0000408, /* MC4_MISC1 */
-			 };
+			};
 
-			 rdmsrl(MSR_K7_HWCR, hwcr);
+			rdmsrl(MSR_K7_HWCR, hwcr);
 
-			 /* McStatusWrEn has to be set */
-			 need_toggle = !(hwcr & BIT(18));
+			/* McStatusWrEn has to be set */
+			need_toggle = !(hwcr & BIT(18));
 
-			 if (need_toggle)
-				 wrmsrl(MSR_K7_HWCR, hwcr | BIT(18));
+			if (need_toggle)
+				wrmsrl(MSR_K7_HWCR, hwcr | BIT(18));
 
-			 for (i = 0; i < ARRAY_SIZE(msrs); i++) {
-				 rdmsrl(msrs[i], val);
+			/* Clear CntP bit safely */
+			for (i = 0; i < ARRAY_SIZE(msrs); i++)
+				msr_clear_bit(msrs[i], 62);
 
-				 /* CntP bit set? */
-				 if (val & BIT_64(62)) {
-					val &= ~BIT_64(62);
-					wrmsrl(msrs[i], val);
-				 }
-			 }
-
-			 /* restore old settings */
-			 if (need_toggle)
-				 wrmsrl(MSR_K7_HWCR, hwcr);
-		 }
+			/* restore old settings */
+			if (need_toggle)
+				wrmsrl(MSR_K7_HWCR, hwcr);
+		}
 	}
 
 	if (c->x86_vendor == X86_VENDOR_INTEL) {
@@ -1629,10 +1635,11 @@ static void __mcheck_cpu_init_vendor(struct cpuinfo_x86 *c)
 	switch (c->x86_vendor) {
 	case X86_VENDOR_INTEL:
 		mce_intel_feature_init(c);
-		mce_adjust_timer = mce_intel_adjust_timer;
+		mce_adjust_timer = cmci_intel_adjust_timer;
 		break;
 	case X86_VENDOR_AMD:
 		mce_amd_feature_init(c);
+		mce_flags.overflow_recov = cpuid_ebx(0x80000007) & 0x1;
 		break;
 	default:
 		break;
@@ -2017,6 +2024,7 @@ __setup("mce", mcheck_enable);
 int __init mcheck_init(void)
 {
 	mcheck_intel_therm_init();
+	mcheck_vendor_init_severity();
 
 	return 0;
 }
diff --git a/arch/x86/kernel/cpu/mcheck/mce_amd.c b/arch/x86/kernel/cpu/mcheck/mce_amd.c
index f1c3769..55ad9b3 100644
--- a/arch/x86/kernel/cpu/mcheck/mce_amd.c
+++ b/arch/x86/kernel/cpu/mcheck/mce_amd.c
@@ -79,7 +79,7 @@ static inline bool is_shared_bank(int bank)
 	return (bank == 4);
 }
 
-static const char * const bank4_names(struct threshold_block *b)
+static const char *bank4_names(const struct threshold_block *b)
 {
 	switch (b->address) {
 	/* MSR4_MISC0 */
@@ -250,6 +250,7 @@ void mce_amd_feature_init(struct cpuinfo_x86 *c)
 			if (!b.interrupt_capable)
 				goto init;
 
+			b.interrupt_enable = 1;
 			new	= (high & MASK_LVTOFF_HI) >> 20;
 			offset  = setup_APIC_mce(offset, new);
 
@@ -322,6 +323,8 @@ static void amd_threshold_interrupt(void)
 log:
 	mce_setup(&m);
 	rdmsrl(MSR_IA32_MCx_STATUS(bank), m.status);
+	if (!(m.status & MCI_STATUS_VAL))
+		return;
 	m.misc = ((u64)high << 32) | low;
 	m.bank = bank;
 	mce_log(&m);
@@ -497,10 +500,12 @@ static int allocate_threshold_blocks(unsigned int cpu, unsigned int bank,
 	b->interrupt_capable	= lvt_interrupt_supported(bank, high);
 	b->threshold_limit	= THRESHOLD_MAX;
 
-	if (b->interrupt_capable)
+	if (b->interrupt_capable) {
 		threshold_ktype.default_attrs[2] = &interrupt_enable.attr;
-	else
+		b->interrupt_enable = 1;
+	} else {
 		threshold_ktype.default_attrs[2] = NULL;
+	}
 
 	INIT_LIST_HEAD(&b->miscj);
 
diff --git a/arch/x86/kernel/cpu/mcheck/mce_intel.c b/arch/x86/kernel/cpu/mcheck/mce_intel.c
index b3c97ba..b4a41cf 100644
--- a/arch/x86/kernel/cpu/mcheck/mce_intel.c
+++ b/arch/x86/kernel/cpu/mcheck/mce_intel.c
@@ -39,6 +39,15 @@
 static DEFINE_PER_CPU(mce_banks_t, mce_banks_owned);
 
 /*
+ * CMCI storm detection backoff counter
+ *
+ * During storm, we reset this counter to INITIAL_CHECK_INTERVAL in case we've
+ * encountered an error. If not, we decrement it by one. We signal the end of
+ * the CMCI storm when it reaches 0.
+ */
+static DEFINE_PER_CPU(int, cmci_backoff_cnt);
+
+/*
  * cmci_discover_lock protects against parallel discovery attempts
  * which could race against each other.
  */
@@ -46,7 +55,7 @@ static DEFINE_RAW_SPINLOCK(cmci_discover_lock);
 
 #define CMCI_THRESHOLD		1
 #define CMCI_POLL_INTERVAL	(30 * HZ)
-#define CMCI_STORM_INTERVAL	(1 * HZ)
+#define CMCI_STORM_INTERVAL	(HZ)
 #define CMCI_STORM_THRESHOLD	15
 
 static DEFINE_PER_CPU(unsigned long, cmci_time_stamp);
@@ -82,11 +91,21 @@ static int cmci_supported(int *banks)
 	return !!(cap & MCG_CMCI_P);
 }
 
-void mce_intel_cmci_poll(void)
+bool mce_intel_cmci_poll(void)
 {
 	if (__this_cpu_read(cmci_storm_state) == CMCI_STORM_NONE)
-		return;
-	machine_check_poll(MCP_TIMESTAMP, this_cpu_ptr(&mce_banks_owned));
+		return false;
+
+	/*
+	 * Reset the counter if we've logged an error in the last poll
+	 * during the storm.
+	 */
+	if (machine_check_poll(MCP_TIMESTAMP, this_cpu_ptr(&mce_banks_owned)))
+		this_cpu_write(cmci_backoff_cnt, INITIAL_CHECK_INTERVAL);
+	else
+		this_cpu_dec(cmci_backoff_cnt);
+
+	return true;
 }
 
 void mce_intel_hcpu_update(unsigned long cpu)
@@ -97,31 +116,32 @@ void mce_intel_hcpu_update(unsigned long cpu)
 	per_cpu(cmci_storm_state, cpu) = CMCI_STORM_NONE;
 }
 
-unsigned long mce_intel_adjust_timer(unsigned long interval)
+unsigned long cmci_intel_adjust_timer(unsigned long interval)
 {
-	int r;
-
-	if (interval < CMCI_POLL_INTERVAL)
-		return interval;
+	if ((this_cpu_read(cmci_backoff_cnt) > 0) &&
+	    (__this_cpu_read(cmci_storm_state) == CMCI_STORM_ACTIVE)) {
+		mce_notify_irq();
+		return CMCI_STORM_INTERVAL;
+	}
 
 	switch (__this_cpu_read(cmci_storm_state)) {
 	case CMCI_STORM_ACTIVE:
+
 		/*
 		 * We switch back to interrupt mode once the poll timer has
-		 * silenced itself. That means no events recorded and the
-		 * timer interval is back to our poll interval.
+		 * silenced itself. That means no events recorded and the timer
+		 * interval is back to our poll interval.
 		 */
 		__this_cpu_write(cmci_storm_state, CMCI_STORM_SUBSIDED);
-		r = atomic_sub_return(1, &cmci_storm_on_cpus);
-		if (r == 0)
+		if (!atomic_sub_return(1, &cmci_storm_on_cpus))
 			pr_notice("CMCI storm subsided: switching to interrupt mode\n");
+
 		/* FALLTHROUGH */
 
 	case CMCI_STORM_SUBSIDED:
 		/*
-		 * We wait for all cpus to go back to SUBSIDED
-		 * state. When that happens we switch back to
-		 * interrupt mode.
+		 * We wait for all CPUs to go back to SUBSIDED state. When that
+		 * happens we switch back to interrupt mode.
 		 */
 		if (!atomic_read(&cmci_storm_on_cpus)) {
 			__this_cpu_write(cmci_storm_state, CMCI_STORM_NONE);
@@ -130,10 +150,8 @@ unsigned long mce_intel_adjust_timer(unsigned long interval)
 		}
 		return CMCI_POLL_INTERVAL;
 	default:
-		/*
-		 * We have shiny weather. Let the poll do whatever it
-		 * thinks.
-		 */
+
+		/* We have shiny weather. Let the poll do whatever it thinks. */
 		return interval;
 	}
 }
@@ -178,7 +196,8 @@ static bool cmci_storm_detect(void)
 	cmci_storm_disable_banks();
 	__this_cpu_write(cmci_storm_state, CMCI_STORM_ACTIVE);
 	r = atomic_add_return(1, &cmci_storm_on_cpus);
-	mce_timer_kick(CMCI_POLL_INTERVAL);
+	mce_timer_kick(CMCI_STORM_INTERVAL);
+	this_cpu_write(cmci_backoff_cnt, INITIAL_CHECK_INTERVAL);
 
 	if (r == 1)
 		pr_notice("CMCI storm detected: switching to poll mode\n");
@@ -195,6 +214,7 @@ static void intel_threshold_interrupt(void)
 {
 	if (cmci_storm_detect())
 		return;
+
 	machine_check_poll(MCP_TIMESTAMP, this_cpu_ptr(&mce_banks_owned));
 	mce_notify_irq();
 }
@@ -286,6 +306,7 @@ void cmci_recheck(void)
 
 	if (!mce_available(raw_cpu_ptr(&cpu_info)) || !cmci_supported(&banks))
 		return;
+
 	local_irq_save(flags);
 	machine_check_poll(MCP_TIMESTAMP, this_cpu_ptr(&mce_banks_owned));
 	local_irq_restore(flags);
diff --git a/arch/x86/kernel/cpu/microcode/amd.c b/arch/x86/kernel/cpu/microcode/amd.c
index bfbbe61..12829c3 100644
--- a/arch/x86/kernel/cpu/microcode/amd.c
+++ b/arch/x86/kernel/cpu/microcode/amd.c
@@ -21,7 +21,6 @@
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
 #include <linux/firmware.h>
-#include <linux/pci_ids.h>
 #include <linux/uaccess.h>
 #include <linux/vmalloc.h>
 #include <linux/kernel.h>
diff --git a/arch/x86/kernel/cpu/microcode/core_early.c b/arch/x86/kernel/cpu/microcode/core_early.c
index d45df4bd..a413a69 100644
--- a/arch/x86/kernel/cpu/microcode/core_early.c
+++ b/arch/x86/kernel/cpu/microcode/core_early.c
@@ -23,57 +23,6 @@
 #include <asm/processor.h>
 #include <asm/cmdline.h>
 
-#define QCHAR(a, b, c, d) ((a) + ((b) << 8) + ((c) << 16) + ((d) << 24))
-#define CPUID_INTEL1 QCHAR('G', 'e', 'n', 'u')
-#define CPUID_INTEL2 QCHAR('i', 'n', 'e', 'I')
-#define CPUID_INTEL3 QCHAR('n', 't', 'e', 'l')
-#define CPUID_AMD1 QCHAR('A', 'u', 't', 'h')
-#define CPUID_AMD2 QCHAR('e', 'n', 't', 'i')
-#define CPUID_AMD3 QCHAR('c', 'A', 'M', 'D')
-
-#define CPUID_IS(a, b, c, ebx, ecx, edx)	\
-		(!((ebx ^ (a))|(edx ^ (b))|(ecx ^ (c))))
-
-/*
- * In early loading microcode phase on BSP, boot_cpu_data is not set up yet.
- * x86_vendor() gets vendor id for BSP.
- *
- * In 32 bit AP case, accessing boot_cpu_data needs linear address. To simplify
- * coding, we still use x86_vendor() to get vendor id for AP.
- *
- * x86_vendor() gets vendor information directly through cpuid.
- */
-static int x86_vendor(void)
-{
-	u32 eax = 0x00000000;
-	u32 ebx, ecx = 0, edx;
-
-	native_cpuid(&eax, &ebx, &ecx, &edx);
-
-	if (CPUID_IS(CPUID_INTEL1, CPUID_INTEL2, CPUID_INTEL3, ebx, ecx, edx))
-		return X86_VENDOR_INTEL;
-
-	if (CPUID_IS(CPUID_AMD1, CPUID_AMD2, CPUID_AMD3, ebx, ecx, edx))
-		return X86_VENDOR_AMD;
-
-	return X86_VENDOR_UNKNOWN;
-}
-
-static int x86_family(void)
-{
-	u32 eax = 0x00000001;
-	u32 ebx, ecx = 0, edx;
-	int x86;
-
-	native_cpuid(&eax, &ebx, &ecx, &edx);
-
-	x86 = (eax >> 8) & 0xf;
-	if (x86 == 15)
-		x86 += (eax >> 20) & 0xff;
-
-	return x86;
-}
-
 static bool __init check_loader_disabled_bsp(void)
 {
 #ifdef CONFIG_X86_32
@@ -96,7 +45,7 @@ static bool __init check_loader_disabled_bsp(void)
 
 void __init load_ucode_bsp(void)
 {
-	int vendor, x86;
+	int vendor, family;
 
 	if (check_loader_disabled_bsp())
 		return;
@@ -105,15 +54,15 @@ void __init load_ucode_bsp(void)
 		return;
 
 	vendor = x86_vendor();
-	x86 = x86_family();
+	family = x86_family();
 
 	switch (vendor) {
 	case X86_VENDOR_INTEL:
-		if (x86 >= 6)
+		if (family >= 6)
 			load_ucode_intel_bsp();
 		break;
 	case X86_VENDOR_AMD:
-		if (x86 >= 0x10)
+		if (family >= 0x10)
 			load_ucode_amd_bsp();
 		break;
 	default:
@@ -132,7 +81,7 @@ static bool check_loader_disabled_ap(void)
 
 void load_ucode_ap(void)
 {
-	int vendor, x86;
+	int vendor, family;
 
 	if (check_loader_disabled_ap())
 		return;
@@ -141,15 +90,15 @@ void load_ucode_ap(void)
 		return;
 
 	vendor = x86_vendor();
-	x86 = x86_family();
+	family = x86_family();
 
 	switch (vendor) {
 	case X86_VENDOR_INTEL:
-		if (x86 >= 6)
+		if (family >= 6)
 			load_ucode_intel_ap();
 		break;
 	case X86_VENDOR_AMD:
-		if (x86 >= 0x10)
+		if (family >= 0x10)
 			load_ucode_amd_ap();
 		break;
 	default:
@@ -179,18 +128,18 @@ int __init save_microcode_in_initrd(void)
 
 void reload_early_microcode(void)
 {
-	int vendor, x86;
+	int vendor, family;
 
 	vendor = x86_vendor();
-	x86 = x86_family();
+	family = x86_family();
 
 	switch (vendor) {
 	case X86_VENDOR_INTEL:
-		if (x86 >= 6)
+		if (family >= 6)
 			reload_ucode_intel();
 		break;
 	case X86_VENDOR_AMD:
-		if (x86 >= 0x10)
+		if (family >= 0x10)
 			reload_ucode_amd();
 		break;
 	default:
diff --git a/arch/x86/kernel/cpu/microcode/intel.c b/arch/x86/kernel/cpu/microcode/intel.c
index 746e7fd..a41bead 100644
--- a/arch/x86/kernel/cpu/microcode/intel.c
+++ b/arch/x86/kernel/cpu/microcode/intel.c
@@ -124,7 +124,7 @@ static int get_matching_mc(struct microcode_intel *mc_intel, int cpu)
 	cpf = cpu_sig.pf;
 	crev = cpu_sig.rev;
 
-	return get_matching_microcode(csig, cpf, mc_intel, crev);
+	return get_matching_microcode(csig, cpf, crev, mc_intel);
 }
 
 static int apply_microcode_intel(int cpu)
@@ -226,7 +226,7 @@ static enum ucode_state generic_load_microcode(int cpu, void *data, size_t size,
 
 		csig = uci->cpu_sig.sig;
 		cpf = uci->cpu_sig.pf;
-		if (get_matching_microcode(csig, cpf, mc, new_rev)) {
+		if (get_matching_microcode(csig, cpf, new_rev, mc)) {
 			vfree(new_mc);
 			new_rev = mc_header.rev;
 			new_mc  = mc;
diff --git a/arch/x86/kernel/cpu/microcode/intel_early.c b/arch/x86/kernel/cpu/microcode/intel_early.c
index 420eb93..2f49ab4 100644
--- a/arch/x86/kernel/cpu/microcode/intel_early.c
+++ b/arch/x86/kernel/cpu/microcode/intel_early.c
@@ -16,6 +16,14 @@
  *	as published by the Free Software Foundation; either version
  *	2 of the License, or (at your option) any later version.
  */
+
+/*
+ * This needs to be before all headers so that pr_debug in printk.h doesn't turn
+ * printk calls into no_printk().
+ *
+ *#define DEBUG
+ */
+
 #include <linux/module.h>
 #include <linux/mm.h>
 #include <linux/slab.h>
@@ -28,6 +36,9 @@
 #include <asm/tlbflush.h>
 #include <asm/setup.h>
 
+#undef pr_fmt
+#define pr_fmt(fmt)	"microcode: " fmt
+
 static unsigned long mc_saved_in_initrd[MAX_UCODE_COUNT];
 static struct mc_saved_data {
 	unsigned int mc_saved_count;
@@ -35,50 +46,45 @@ static struct mc_saved_data {
 } mc_saved_data;
 
 static enum ucode_state
-generic_load_microcode_early(struct microcode_intel **mc_saved_p,
-			     unsigned int mc_saved_count,
-			     struct ucode_cpu_info *uci)
+load_microcode_early(struct microcode_intel **saved,
+		     unsigned int num_saved, struct ucode_cpu_info *uci)
 {
 	struct microcode_intel *ucode_ptr, *new_mc = NULL;
-	int new_rev = uci->cpu_sig.rev;
-	enum ucode_state state = UCODE_OK;
-	unsigned int mc_size;
-	struct microcode_header_intel *mc_header;
-	unsigned int csig = uci->cpu_sig.sig;
-	unsigned int cpf = uci->cpu_sig.pf;
-	int i;
+	struct microcode_header_intel *mc_hdr;
+	int new_rev, ret, i;
 
-	for (i = 0; i < mc_saved_count; i++) {
-		ucode_ptr = mc_saved_p[i];
+	new_rev = uci->cpu_sig.rev;
 
-		mc_header = (struct microcode_header_intel *)ucode_ptr;
-		mc_size = get_totalsize(mc_header);
-		if (get_matching_microcode(csig, cpf, ucode_ptr, new_rev)) {
-			new_rev = mc_header->rev;
-			new_mc  = ucode_ptr;
-		}
-	}
+	for (i = 0; i < num_saved; i++) {
+		ucode_ptr = saved[i];
+		mc_hdr	  = (struct microcode_header_intel *)ucode_ptr;
 
-	if (!new_mc) {
-		state = UCODE_NFOUND;
-		goto out;
+		ret = get_matching_microcode(uci->cpu_sig.sig,
+					     uci->cpu_sig.pf,
+					     new_rev,
+					     ucode_ptr);
+		if (!ret)
+			continue;
+
+		new_rev = mc_hdr->rev;
+		new_mc  = ucode_ptr;
 	}
 
+	if (!new_mc)
+		return UCODE_NFOUND;
+
 	uci->mc = (struct microcode_intel *)new_mc;
-out:
-	return state;
+	return UCODE_OK;
 }
 
-static void
-microcode_pointer(struct microcode_intel **mc_saved,
-		  unsigned long *mc_saved_in_initrd,
-		  unsigned long initrd_start, int mc_saved_count)
+static inline void
+copy_initrd_ptrs(struct microcode_intel **mc_saved, unsigned long *initrd,
+		  unsigned long off, int num_saved)
 {
 	int i;
 
-	for (i = 0; i < mc_saved_count; i++)
-		mc_saved[i] = (struct microcode_intel *)
-			      (mc_saved_in_initrd[i] + initrd_start);
+	for (i = 0; i < num_saved; i++)
+		mc_saved[i] = (struct microcode_intel *)(initrd[i] + off);
 }
 
 #ifdef CONFIG_X86_32
@@ -102,55 +108,27 @@ microcode_phys(struct microcode_intel **mc_saved_tmp,
 #endif
 
 static enum ucode_state
-load_microcode(struct mc_saved_data *mc_saved_data,
-	       unsigned long *mc_saved_in_initrd,
-	       unsigned long initrd_start,
-	       struct ucode_cpu_info *uci)
+load_microcode(struct mc_saved_data *mc_saved_data, unsigned long *initrd,
+	       unsigned long initrd_start, struct ucode_cpu_info *uci)
 {
 	struct microcode_intel *mc_saved_tmp[MAX_UCODE_COUNT];
 	unsigned int count = mc_saved_data->mc_saved_count;
 
 	if (!mc_saved_data->mc_saved) {
-		microcode_pointer(mc_saved_tmp, mc_saved_in_initrd,
-				  initrd_start, count);
+		copy_initrd_ptrs(mc_saved_tmp, initrd, initrd_start, count);
 
-		return generic_load_microcode_early(mc_saved_tmp, count, uci);
+		return load_microcode_early(mc_saved_tmp, count, uci);
 	} else {
 #ifdef CONFIG_X86_32
 		microcode_phys(mc_saved_tmp, mc_saved_data);
-		return generic_load_microcode_early(mc_saved_tmp, count, uci);
+		return load_microcode_early(mc_saved_tmp, count, uci);
 #else
-		return generic_load_microcode_early(mc_saved_data->mc_saved,
+		return load_microcode_early(mc_saved_data->mc_saved,
 						    count, uci);
 #endif
 	}
 }
 
-static u8 get_x86_family(unsigned long sig)
-{
-	u8 x86;
-
-	x86 = (sig >> 8) & 0xf;
-
-	if (x86 == 0xf)
-		x86 += (sig >> 20) & 0xff;
-
-	return x86;
-}
-
-static u8 get_x86_model(unsigned long sig)
-{
-	u8 x86, x86_model;
-
-	x86 = get_x86_family(sig);
-	x86_model = (sig >> 4) & 0xf;
-
-	if (x86 == 0x6 || x86 == 0xf)
-		x86_model += ((sig >> 16) & 0xf) << 4;
-
-	return x86_model;
-}
-
 /*
  * Given CPU signature and a microcode patch, this function finds if the
  * microcode patch has matching family and model with the CPU.
@@ -159,42 +137,40 @@ static enum ucode_state
 matching_model_microcode(struct microcode_header_intel *mc_header,
 			unsigned long sig)
 {
-	u8 x86, x86_model;
-	u8 x86_ucode, x86_model_ucode;
+	unsigned int fam, model;
+	unsigned int fam_ucode, model_ucode;
 	struct extended_sigtable *ext_header;
 	unsigned long total_size = get_totalsize(mc_header);
 	unsigned long data_size = get_datasize(mc_header);
 	int ext_sigcount, i;
 	struct extended_signature *ext_sig;
 
-	x86 = get_x86_family(sig);
-	x86_model = get_x86_model(sig);
+	fam   = __x86_family(sig);
+	model = x86_model(sig);
 
-	x86_ucode = get_x86_family(mc_header->sig);
-	x86_model_ucode = get_x86_model(mc_header->sig);
+	fam_ucode   = __x86_family(mc_header->sig);
+	model_ucode = x86_model(mc_header->sig);
 
-	if (x86 == x86_ucode && x86_model == x86_model_ucode)
+	if (fam == fam_ucode && model == model_ucode)
 		return UCODE_OK;
 
 	/* Look for ext. headers: */
 	if (total_size <= data_size + MC_HEADER_SIZE)
 		return UCODE_NFOUND;
 
-	ext_header = (struct extended_sigtable *)
-		     mc_header + data_size + MC_HEADER_SIZE;
+	ext_header   = (void *) mc_header + data_size + MC_HEADER_SIZE;
+	ext_sig      = (void *)ext_header + EXT_HEADER_SIZE;
 	ext_sigcount = ext_header->count;
-	ext_sig = (void *)ext_header + EXT_HEADER_SIZE;
 
 	for (i = 0; i < ext_sigcount; i++) {
-		x86_ucode = get_x86_family(ext_sig->sig);
-		x86_model_ucode = get_x86_model(ext_sig->sig);
+		fam_ucode   = __x86_family(ext_sig->sig);
+		model_ucode = x86_model(ext_sig->sig);
 
-		if (x86 == x86_ucode && x86_model == x86_model_ucode)
+		if (fam == fam_ucode && model == model_ucode)
 			return UCODE_OK;
 
 		ext_sig++;
 	}
-
 	return UCODE_NFOUND;
 }
 
@@ -204,7 +180,7 @@ save_microcode(struct mc_saved_data *mc_saved_data,
 	       unsigned int mc_saved_count)
 {
 	int i, j;
-	struct microcode_intel **mc_saved_p;
+	struct microcode_intel **saved_ptr;
 	int ret;
 
 	if (!mc_saved_count)
@@ -213,39 +189,45 @@ save_microcode(struct mc_saved_data *mc_saved_data,
 	/*
 	 * Copy new microcode data.
 	 */
-	mc_saved_p = kmalloc(mc_saved_count*sizeof(struct microcode_intel *),
-			     GFP_KERNEL);
-	if (!mc_saved_p)
+	saved_ptr = kcalloc(mc_saved_count, sizeof(struct microcode_intel *), GFP_KERNEL);
+	if (!saved_ptr)
 		return -ENOMEM;
 
 	for (i = 0; i < mc_saved_count; i++) {
-		struct microcode_intel *mc = mc_saved_src[i];
-		struct microcode_header_intel *mc_header = &mc->hdr;
-		unsigned long mc_size = get_totalsize(mc_header);
-		mc_saved_p[i] = kmalloc(mc_size, GFP_KERNEL);
-		if (!mc_saved_p[i]) {
-			ret = -ENOMEM;
-			goto err;
-		}
+		struct microcode_header_intel *mc_hdr;
+		struct microcode_intel *mc;
+		unsigned long size;
+
 		if (!mc_saved_src[i]) {
 			ret = -EINVAL;
 			goto err;
 		}
-		memcpy(mc_saved_p[i], mc, mc_size);
+
+		mc     = mc_saved_src[i];
+		mc_hdr = &mc->hdr;
+		size   = get_totalsize(mc_hdr);
+
+		saved_ptr[i] = kmalloc(size, GFP_KERNEL);
+		if (!saved_ptr[i]) {
+			ret = -ENOMEM;
+			goto err;
+		}
+
+		memcpy(saved_ptr[i], mc, size);
 	}
 
 	/*
 	 * Point to newly saved microcode.
 	 */
-	mc_saved_data->mc_saved = mc_saved_p;
+	mc_saved_data->mc_saved = saved_ptr;
 	mc_saved_data->mc_saved_count = mc_saved_count;
 
 	return 0;
 
 err:
 	for (j = 0; j <= i; j++)
-		kfree(mc_saved_p[j]);
-	kfree(mc_saved_p);
+		kfree(saved_ptr[j]);
+	kfree(saved_ptr);
 
 	return ret;
 }
@@ -257,48 +239,45 @@ err:
  * - or if it is a newly discovered microcode patch.
  *
  * The microcode patch should have matching model with CPU.
+ *
+ * Returns: The updated number @num_saved of saved microcode patches.
  */
-static void _save_mc(struct microcode_intel **mc_saved, u8 *ucode_ptr,
-		     unsigned int *mc_saved_count_p)
+static unsigned int _save_mc(struct microcode_intel **mc_saved,
+			     u8 *ucode_ptr, unsigned int num_saved)
 {
-	int i;
-	int found = 0;
-	unsigned int mc_saved_count = *mc_saved_count_p;
-	struct microcode_header_intel *mc_header;
+	struct microcode_header_intel *mc_hdr, *mc_saved_hdr;
+	unsigned int sig, pf, new_rev;
+	int found = 0, i;
+
+	mc_hdr = (struct microcode_header_intel *)ucode_ptr;
+
+	for (i = 0; i < num_saved; i++) {
+		mc_saved_hdr = (struct microcode_header_intel *)mc_saved[i];
+		sig	     = mc_saved_hdr->sig;
+		pf	     = mc_saved_hdr->pf;
+		new_rev	     = mc_hdr->rev;
+
+		if (!get_matching_sig(sig, pf, new_rev, ucode_ptr))
+			continue;
+
+		found = 1;
+
+		if (!revision_is_newer(mc_hdr, new_rev))
+			continue;
 
-	mc_header = (struct microcode_header_intel *)ucode_ptr;
-	for (i = 0; i < mc_saved_count; i++) {
-		unsigned int sig, pf;
-		unsigned int new_rev;
-		struct microcode_header_intel *mc_saved_header =
-			     (struct microcode_header_intel *)mc_saved[i];
-		sig = mc_saved_header->sig;
-		pf = mc_saved_header->pf;
-		new_rev = mc_header->rev;
-
-		if (get_matching_sig(sig, pf, ucode_ptr, new_rev)) {
-			found = 1;
-			if (update_match_revision(mc_header, new_rev)) {
-				/*
-				 * Found an older ucode saved before.
-				 * Replace the older one with this newer
-				 * one.
-				 */
-				mc_saved[i] =
-					(struct microcode_intel *)ucode_ptr;
-				break;
-			}
-		}
-	}
-	if (i >= mc_saved_count && !found)
 		/*
-		 * This ucode is first time discovered in ucode file.
-		 * Save it to memory.
+		 * Found an older ucode saved earlier. Replace it with
+		 * this newer one.
 		 */
-		mc_saved[mc_saved_count++] =
-				 (struct microcode_intel *)ucode_ptr;
+		mc_saved[i] = (struct microcode_intel *)ucode_ptr;
+		break;
+	}
+
+	/* Newly detected microcode, save it to memory. */
+	if (i >= num_saved && !found)
+		mc_saved[num_saved++] = (struct microcode_intel *)ucode_ptr;
 
-	*mc_saved_count_p = mc_saved_count;
+	return num_saved;
 }
 
 /*
@@ -346,7 +325,7 @@ get_matching_model_microcode(int cpu, unsigned long start,
 			continue;
 		}
 
-		_save_mc(mc_saved_tmp, ucode_ptr, &mc_saved_count);
+		mc_saved_count = _save_mc(mc_saved_tmp, ucode_ptr, mc_saved_count);
 
 		ucode_ptr += mc_size;
 	}
@@ -372,7 +351,7 @@ out:
 static int collect_cpu_info_early(struct ucode_cpu_info *uci)
 {
 	unsigned int val[2];
-	u8 x86, x86_model;
+	unsigned int family, model;
 	struct cpu_signature csig;
 	unsigned int eax, ebx, ecx, edx;
 
@@ -387,10 +366,10 @@ static int collect_cpu_info_early(struct ucode_cpu_info *uci)
 	native_cpuid(&eax, &ebx, &ecx, &edx);
 	csig.sig = eax;
 
-	x86 = get_x86_family(csig.sig);
-	x86_model = get_x86_model(csig.sig);
+	family = __x86_family(csig.sig);
+	model  = x86_model(csig.sig);
 
-	if ((x86_model >= 5) || (x86 > 6)) {
+	if ((model >= 5) || (family > 6)) {
 		/* get processor flags from MSR 0x17 */
 		native_rdmsr(MSR_IA32_PLATFORM_ID, val[0], val[1]);
 		csig.pf = 1 << ((val[1] >> 18) & 7);
@@ -429,8 +408,7 @@ static void __ref show_saved_mc(void)
 	sig = uci.cpu_sig.sig;
 	pf = uci.cpu_sig.pf;
 	rev = uci.cpu_sig.rev;
-	pr_debug("CPU%d: sig=0x%x, pf=0x%x, rev=0x%x\n",
-		 smp_processor_id(), sig, pf, rev);
+	pr_debug("CPU: sig=0x%x, pf=0x%x, rev=0x%x\n", sig, pf, rev);
 
 	for (i = 0; i < mc_saved_data.mc_saved_count; i++) {
 		struct microcode_header_intel *mc_saved_header;
@@ -457,8 +435,7 @@ static void __ref show_saved_mc(void)
 		if (total_size <= data_size + MC_HEADER_SIZE)
 			continue;
 
-		ext_header = (struct extended_sigtable *)
-			     mc_saved_header + data_size + MC_HEADER_SIZE;
+		ext_header = (void *) mc_saved_header + data_size + MC_HEADER_SIZE;
 		ext_sigcount = ext_header->count;
 		ext_sig = (void *)ext_header + EXT_HEADER_SIZE;
 
@@ -515,8 +492,7 @@ int save_mc_for_early(u8 *mc)
 	 * Save the microcode patch mc in mc_save_tmp structure if it's a newer
 	 * version.
 	 */
-
-	_save_mc(mc_saved_tmp, mc, &mc_saved_count);
+	mc_saved_count = _save_mc(mc_saved_tmp, mc, mc_saved_count);
 
 	/*
 	 * Save the mc_save_tmp in global mc_saved_data.
@@ -548,12 +524,10 @@ EXPORT_SYMBOL_GPL(save_mc_for_early);
 
 static __initdata char ucode_name[] = "kernel/x86/microcode/GenuineIntel.bin";
 static __init enum ucode_state
-scan_microcode(unsigned long start, unsigned long end,
-		struct mc_saved_data *mc_saved_data,
-		unsigned long *mc_saved_in_initrd,
-		struct ucode_cpu_info *uci)
+scan_microcode(struct mc_saved_data *mc_saved_data, unsigned long *initrd,
+	       unsigned long start, unsigned long size,
+	       struct ucode_cpu_info *uci)
 {
-	unsigned int size = end - start + 1;
 	struct cpio_data cd;
 	long offset = 0;
 #ifdef CONFIG_X86_32
@@ -569,10 +543,8 @@ scan_microcode(unsigned long start, unsigned long end,
 	if (!cd.data)
 		return UCODE_ERROR;
 
-
 	return get_matching_model_microcode(0, start, cd.data, cd.size,
-					    mc_saved_data, mc_saved_in_initrd,
-					    uci);
+					    mc_saved_data, initrd, uci);
 }
 
 /*
@@ -704,7 +676,7 @@ int __init save_microcode_in_initrd_intel(void)
 	if (count == 0)
 		return ret;
 
-	microcode_pointer(mc_saved, mc_saved_in_initrd, initrd_start, count);
+	copy_initrd_ptrs(mc_saved, mc_saved_in_initrd, initrd_start, count);
 	ret = save_microcode(&mc_saved_data, mc_saved, count);
 	if (ret)
 		pr_err("Cannot save microcode patches from initrd.\n");
@@ -716,52 +688,44 @@ int __init save_microcode_in_initrd_intel(void)
 
 static void __init
 _load_ucode_intel_bsp(struct mc_saved_data *mc_saved_data,
-		      unsigned long *mc_saved_in_initrd,
-		      unsigned long initrd_start_early,
-		      unsigned long initrd_end_early,
-		      struct ucode_cpu_info *uci)
+		      unsigned long *initrd,
+		      unsigned long start, unsigned long size)
 {
+	struct ucode_cpu_info uci;
 	enum ucode_state ret;
 
-	collect_cpu_info_early(uci);
-	scan_microcode(initrd_start_early, initrd_end_early, mc_saved_data,
-		       mc_saved_in_initrd, uci);
+	collect_cpu_info_early(&uci);
 
-	ret = load_microcode(mc_saved_data, mc_saved_in_initrd,
-			     initrd_start_early, uci);
+	ret = scan_microcode(mc_saved_data, initrd, start, size, &uci);
+	if (ret != UCODE_OK)
+		return;
 
-	if (ret == UCODE_OK)
-		apply_microcode_early(uci, true);
+	ret = load_microcode(mc_saved_data, initrd, start, &uci);
+	if (ret != UCODE_OK)
+		return;
+
+	apply_microcode_early(&uci, true);
 }
 
-void __init
-load_ucode_intel_bsp(void)
+void __init load_ucode_intel_bsp(void)
 {
-	u64 ramdisk_image, ramdisk_size;
-	unsigned long initrd_start_early, initrd_end_early;
-	struct ucode_cpu_info uci;
+	u64 start, size;
 #ifdef CONFIG_X86_32
-	struct boot_params *boot_params_p;
+	struct boot_params *p;
 
-	boot_params_p = (struct boot_params *)__pa_nodebug(&boot_params);
-	ramdisk_image = boot_params_p->hdr.ramdisk_image;
-	ramdisk_size  = boot_params_p->hdr.ramdisk_size;
-	initrd_start_early = ramdisk_image;
-	initrd_end_early = initrd_start_early + ramdisk_size;
+	p	= (struct boot_params *)__pa_nodebug(&boot_params);
+	start	= p->hdr.ramdisk_image;
+	size	= p->hdr.ramdisk_size;
 
 	_load_ucode_intel_bsp(
-		(struct mc_saved_data *)__pa_nodebug(&mc_saved_data),
-		(unsigned long *)__pa_nodebug(&mc_saved_in_initrd),
-		initrd_start_early, initrd_end_early, &uci);
+			(struct mc_saved_data *)__pa_nodebug(&mc_saved_data),
+			(unsigned long *)__pa_nodebug(&mc_saved_in_initrd),
+			start, size);
 #else
-	ramdisk_image = boot_params.hdr.ramdisk_image;
-	ramdisk_size  = boot_params.hdr.ramdisk_size;
-	initrd_start_early = ramdisk_image + PAGE_OFFSET;
-	initrd_end_early = initrd_start_early + ramdisk_size;
-
-	_load_ucode_intel_bsp(&mc_saved_data, mc_saved_in_initrd,
-			      initrd_start_early, initrd_end_early,
-			      &uci);
+	start	= boot_params.hdr.ramdisk_image + PAGE_OFFSET;
+	size	= boot_params.hdr.ramdisk_size;
+
+	_load_ucode_intel_bsp(&mc_saved_data, mc_saved_in_initrd, start, size);
 #endif
 }
 
@@ -771,6 +735,7 @@ void load_ucode_intel_ap(void)
 	struct ucode_cpu_info uci;
 	unsigned long *mc_saved_in_initrd_p;
 	unsigned long initrd_start_addr;
+	enum ucode_state ret;
 #ifdef CONFIG_X86_32
 	unsigned long *initrd_start_p;
 
@@ -793,8 +758,12 @@ void load_ucode_intel_ap(void)
 		return;
 
 	collect_cpu_info_early(&uci);
-	load_microcode(mc_saved_data_p, mc_saved_in_initrd_p,
-		       initrd_start_addr, &uci);
+	ret = load_microcode(mc_saved_data_p, mc_saved_in_initrd_p,
+			     initrd_start_addr, &uci);
+
+	if (ret != UCODE_OK)
+		return;
+
 	apply_microcode_early(&uci, true);
 }
 
@@ -808,8 +777,8 @@ void reload_ucode_intel(void)
 
 	collect_cpu_info_early(&uci);
 
-	ret = generic_load_microcode_early(mc_saved_data.mc_saved,
-					   mc_saved_data.mc_saved_count, &uci);
+	ret = load_microcode_early(mc_saved_data.mc_saved,
+				   mc_saved_data.mc_saved_count, &uci);
 	if (ret != UCODE_OK)
 		return;
 
diff --git a/arch/x86/kernel/cpu/microcode/intel_lib.c b/arch/x86/kernel/cpu/microcode/intel_lib.c
index ce69320..cd47a51 100644
--- a/arch/x86/kernel/cpu/microcode/intel_lib.c
+++ b/arch/x86/kernel/cpu/microcode/intel_lib.c
@@ -38,12 +38,6 @@ update_match_cpu(unsigned int csig, unsigned int cpf,
 	return (!sigmatch(sig, csig, pf, cpf)) ? 0 : 1;
 }
 
-int
-update_match_revision(struct microcode_header_intel *mc_header, int rev)
-{
-	return (mc_header->rev <= rev) ? 0 : 1;
-}
-
 int microcode_sanity_check(void *mc, int print_err)
 {
 	unsigned long total_size, data_size, ext_table_size;
@@ -128,10 +122,9 @@ int microcode_sanity_check(void *mc, int print_err)
 EXPORT_SYMBOL_GPL(microcode_sanity_check);
 
 /*
- * return 0 - no update found
- * return 1 - found update
+ * Returns 1 if update has been found, 0 otherwise.
  */
-int get_matching_sig(unsigned int csig, int cpf, void *mc, int rev)
+int get_matching_sig(unsigned int csig, int cpf, int rev, void *mc)
 {
 	struct microcode_header_intel *mc_header = mc;
 	struct extended_sigtable *ext_header;
@@ -159,16 +152,15 @@ int get_matching_sig(unsigned int csig, int cpf, void *mc, int rev)
 }
 
 /*
- * return 0 - no update found
- * return 1 - found update
+ * Returns 1 if update has been found, 0 otherwise.
  */
-int get_matching_microcode(unsigned int csig, int cpf, void *mc, int rev)
+int get_matching_microcode(unsigned int csig, int cpf, int rev, void *mc)
 {
-	struct microcode_header_intel *mc_header = mc;
+	struct microcode_header_intel *mc_hdr = mc;
 
-	if (!update_match_revision(mc_header, rev))
+	if (!revision_is_newer(mc_hdr, rev))
 		return 0;
 
-	return get_matching_sig(csig, cpf, mc, rev);
+	return get_matching_sig(csig, cpf, rev, mc);
 }
 EXPORT_SYMBOL_GPL(get_matching_microcode);
diff --git a/arch/x86/kernel/cpu/mkcapflags.sh b/arch/x86/kernel/cpu/mkcapflags.sh
index 36d99a3..3f20710 100644
--- a/arch/x86/kernel/cpu/mkcapflags.sh
+++ b/arch/x86/kernel/cpu/mkcapflags.sh
@@ -6,7 +6,7 @@
 IN=$1
 OUT=$2
 
-function dump_array()
+dump_array()
 {
 	ARRAY=$1
 	SIZE=$2
diff --git a/arch/x86/kernel/cpu/perf_event.c b/arch/x86/kernel/cpu/perf_event.c
index b71a7f8..e2888a3 100644
--- a/arch/x86/kernel/cpu/perf_event.c
+++ b/arch/x86/kernel/cpu/perf_event.c
@@ -2147,24 +2147,24 @@ perf_callchain_user(struct perf_callchain_entry *entry, struct pt_regs *regs)
 static unsigned long code_segment_base(struct pt_regs *regs)
 {
 	/*
+	 * For IA32 we look at the GDT/LDT segment base to convert the
+	 * effective IP to a linear address.
+	 */
+
+#ifdef CONFIG_X86_32
+	/*
 	 * If we are in VM86 mode, add the segment offset to convert to a
 	 * linear address.
 	 */
 	if (regs->flags & X86_VM_MASK)
 		return 0x10 * regs->cs;
 
-	/*
-	 * For IA32 we look at the GDT/LDT segment base to convert the
-	 * effective IP to a linear address.
-	 */
-#ifdef CONFIG_X86_32
 	if (user_mode(regs) && regs->cs != __USER_CS)
 		return get_segment_base(regs->cs);
 #else
-	if (test_thread_flag(TIF_IA32)) {
-		if (user_mode(regs) && regs->cs != __USER32_CS)
-			return get_segment_base(regs->cs);
-	}
+	if (user_mode(regs) && !user_64bit_mode(regs) &&
+	    regs->cs != __USER32_CS)
+		return get_segment_base(regs->cs);
 #endif
 	return 0;
 }
diff --git a/arch/x86/kernel/cpu/perf_event_intel.c b/arch/x86/kernel/cpu/perf_event_intel.c
index 498b6d9..2589906 100644
--- a/arch/x86/kernel/cpu/perf_event_intel.c
+++ b/arch/x86/kernel/cpu/perf_event_intel.c
@@ -212,11 +212,11 @@ static struct event_constraint intel_hsw_event_constraints[] = {
 	INTEL_UEVENT_CONSTRAINT(0x01c0, 0x2), /* INST_RETIRED.PREC_DIST */
 	INTEL_EVENT_CONSTRAINT(0xcd, 0x8), /* MEM_TRANS_RETIRED.LOAD_LATENCY */
 	/* CYCLE_ACTIVITY.CYCLES_L1D_PENDING */
-	INTEL_EVENT_CONSTRAINT(0x08a3, 0x4),
+	INTEL_UEVENT_CONSTRAINT(0x08a3, 0x4),
 	/* CYCLE_ACTIVITY.STALLS_L1D_PENDING */
-	INTEL_EVENT_CONSTRAINT(0x0ca3, 0x4),
+	INTEL_UEVENT_CONSTRAINT(0x0ca3, 0x4),
 	/* CYCLE_ACTIVITY.CYCLES_NO_EXECUTE */
-	INTEL_EVENT_CONSTRAINT(0x04a3, 0xf),
+	INTEL_UEVENT_CONSTRAINT(0x04a3, 0xf),
 	EVENT_CONSTRAINT_END
 };
 
@@ -1649,11 +1649,11 @@ intel_get_event_constraints(struct cpu_hw_events *cpuc, struct perf_event *event
 	if (c)
 		return c;
 
-	c = intel_pebs_constraints(event);
+	c = intel_shared_regs_constraints(cpuc, event);
 	if (c)
 		return c;
 
-	c = intel_shared_regs_constraints(cpuc, event);
+	c = intel_pebs_constraints(event);
 	if (c)
 		return c;
 
diff --git a/arch/x86/kernel/crash.c b/arch/x86/kernel/crash.c
index aceb2f9..c76d3e3 100644
--- a/arch/x86/kernel/crash.c
+++ b/arch/x86/kernel/crash.c
@@ -105,7 +105,7 @@ static void kdump_nmi_callback(int cpu, struct pt_regs *regs)
 #ifdef CONFIG_X86_32
 	struct pt_regs fixed_regs;
 
-	if (!user_mode_vm(regs)) {
+	if (!user_mode(regs)) {
 		crash_fixup_ss_esp(&fixed_regs, regs);
 		regs = &fixed_regs;
 	}
diff --git a/arch/x86/kernel/devicetree.c b/arch/x86/kernel/devicetree.c
index 3d35033..6367a78 100644
--- a/arch/x86/kernel/devicetree.c
+++ b/arch/x86/kernel/devicetree.c
@@ -286,13 +286,13 @@ static void __init x86_flattree_get_config(void)
 	initial_boot_params = dt = early_memremap(initial_dtb, map_len);
 	size = of_get_flat_dt_size();
 	if (map_len < size) {
-		early_iounmap(dt, map_len);
+		early_memunmap(dt, map_len);
 		initial_boot_params = dt = early_memremap(initial_dtb, size);
 		map_len = size;
 	}
 
 	unflatten_and_copy_device_tree();
-	early_iounmap(dt, map_len);
+	early_memunmap(dt, map_len);
 }
 #else
 static inline void x86_flattree_get_config(void) { }
diff --git a/arch/x86/kernel/dumpstack.c b/arch/x86/kernel/dumpstack.c
index cf3df1d..9c30acf 100644
--- a/arch/x86/kernel/dumpstack.c
+++ b/arch/x86/kernel/dumpstack.c
@@ -25,10 +25,12 @@ unsigned int code_bytes = 64;
 int kstack_depth_to_print = 3 * STACKSLOTS_PER_LINE;
 static int die_counter;
 
-static void printk_stack_address(unsigned long address, int reliable)
+static void printk_stack_address(unsigned long address, int reliable,
+		void *data)
 {
-	pr_cont(" [<%p>] %s%pB\n",
-		(void *)address, reliable ? "" : "? ", (void *)address);
+	printk("%s [<%p>] %s%pB\n",
+		(char *)data, (void *)address, reliable ? "" : "? ",
+		(void *)address);
 }
 
 void printk_address(unsigned long address)
@@ -155,8 +157,7 @@ static int print_trace_stack(void *data, char *name)
 static void print_trace_address(void *data, unsigned long addr, int reliable)
 {
 	touch_nmi_watchdog();
-	printk(data);
-	printk_stack_address(addr, reliable);
+	printk_stack_address(addr, reliable, data);
 }
 
 static const struct stacktrace_ops print_trace_ops = {
@@ -278,7 +279,7 @@ int __die(const char *str, struct pt_regs *regs, long err)
 	print_modules();
 	show_regs(regs);
 #ifdef CONFIG_X86_32
-	if (user_mode_vm(regs)) {
+	if (user_mode(regs)) {
 		sp = regs->sp;
 		ss = regs->ss & 0xffff;
 	} else {
@@ -307,7 +308,7 @@ void die(const char *str, struct pt_regs *regs, long err)
 	unsigned long flags = oops_begin();
 	int sig = SIGSEGV;
 
-	if (!user_mode_vm(regs))
+	if (!user_mode(regs))
 		report_bug(regs->ip, regs);
 
 	if (__die(str, regs, err))
diff --git a/arch/x86/kernel/dumpstack_32.c b/arch/x86/kernel/dumpstack_32.c
index 5abd4cd..464ffd6 100644
--- a/arch/x86/kernel/dumpstack_32.c
+++ b/arch/x86/kernel/dumpstack_32.c
@@ -108,9 +108,12 @@ show_stack_log_lvl(struct task_struct *task, struct pt_regs *regs,
 	for (i = 0; i < kstack_depth_to_print; i++) {
 		if (kstack_end(stack))
 			break;
-		if (i && ((i % STACKSLOTS_PER_LINE) == 0))
-			pr_cont("\n");
-		pr_cont(" %08lx", *stack++);
+		if ((i % STACKSLOTS_PER_LINE) == 0) {
+			if (i != 0)
+				pr_cont("\n");
+			printk("%s %08lx", log_lvl, *stack++);
+		} else
+			pr_cont(" %08lx", *stack++);
 		touch_nmi_watchdog();
 	}
 	pr_cont("\n");
@@ -123,13 +126,13 @@ void show_regs(struct pt_regs *regs)
 	int i;
 
 	show_regs_print_info(KERN_EMERG);
-	__show_regs(regs, !user_mode_vm(regs));
+	__show_regs(regs, !user_mode(regs));
 
 	/*
 	 * When in-kernel, we also print out the stack and code at the
 	 * time of the fault..
 	 */
-	if (!user_mode_vm(regs)) {
+	if (!user_mode(regs)) {
 		unsigned int code_prologue = code_bytes * 43 / 64;
 		unsigned int code_len = code_bytes;
 		unsigned char c;
diff --git a/arch/x86/kernel/dumpstack_64.c b/arch/x86/kernel/dumpstack_64.c
index ff86f19..5f1c626 100644
--- a/arch/x86/kernel/dumpstack_64.c
+++ b/arch/x86/kernel/dumpstack_64.c
@@ -280,12 +280,15 @@ show_stack_log_lvl(struct task_struct *task, struct pt_regs *regs,
 				pr_cont(" <EOI> ");
 			}
 		} else {
-		if (((long) stack & (THREAD_SIZE-1)) == 0)
+		if (kstack_end(stack))
 			break;
 		}
-		if (i && ((i % STACKSLOTS_PER_LINE) == 0))
-			pr_cont("\n");
-		pr_cont(" %016lx", *stack++);
+		if ((i % STACKSLOTS_PER_LINE) == 0) {
+			if (i != 0)
+				pr_cont("\n");
+			printk("%s %016lx", log_lvl, *stack++);
+		} else
+			pr_cont(" %016lx", *stack++);
 		touch_nmi_watchdog();
 	}
 	preempt_enable();
diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c
index 46201de..7d46bb2 100644
--- a/arch/x86/kernel/e820.c
+++ b/arch/x86/kernel/e820.c
@@ -661,7 +661,7 @@ void __init parse_e820_ext(u64 phys_addr, u32 data_len)
 	extmap = (struct e820entry *)(sdata->data);
 	__append_e820_map(extmap, entries);
 	sanitize_e820_map(e820.map, ARRAY_SIZE(e820.map), &e820.nr_map);
-	early_iounmap(sdata, data_len);
+	early_memunmap(sdata, data_len);
 	printk(KERN_INFO "e820: extended physical RAM map:\n");
 	e820_print_map("extended");
 }
diff --git a/arch/x86/kernel/early_printk.c b/arch/x86/kernel/early_printk.c
index a62536a..49ff55e 100644
--- a/arch/x86/kernel/early_printk.c
+++ b/arch/x86/kernel/early_printk.c
@@ -95,20 +95,6 @@ static unsigned long early_serial_base = 0x3f8;  /* ttyS0 */
 #define DLL             0       /*  Divisor Latch Low         */
 #define DLH             1       /*  Divisor latch High        */
 
-static void mem32_serial_out(unsigned long addr, int offset, int value)
-{
-	uint32_t *vaddr = (uint32_t *)addr;
-	/* shift implied by pointer type */
-	writel(value, vaddr + offset);
-}
-
-static unsigned int mem32_serial_in(unsigned long addr, int offset)
-{
-	uint32_t *vaddr = (uint32_t *)addr;
-	/* shift implied by pointer type */
-	return readl(vaddr + offset);
-}
-
 static unsigned int io_serial_in(unsigned long addr, int offset)
 {
 	return inb(addr + offset);
@@ -205,6 +191,20 @@ static __init void early_serial_init(char *s)
 }
 
 #ifdef CONFIG_PCI
+static void mem32_serial_out(unsigned long addr, int offset, int value)
+{
+	u32 *vaddr = (u32 *)addr;
+	/* shift implied by pointer type */
+	writel(value, vaddr + offset);
+}
+
+static unsigned int mem32_serial_in(unsigned long addr, int offset)
+{
+	u32 *vaddr = (u32 *)addr;
+	/* shift implied by pointer type */
+	return readl(vaddr + offset);
+}
+
 /*
  * early_pci_serial_init()
  *
@@ -217,8 +217,8 @@ static __init void early_pci_serial_init(char *s)
 	unsigned divisor;
 	unsigned long baud = DEFAULT_BAUD;
 	u8 bus, slot, func;
-	uint32_t classcode, bar0;
-	uint16_t cmdreg;
+	u32 classcode, bar0;
+	u16 cmdreg;
 	char *e;
 
 
diff --git a/arch/x86/kernel/entry_32.S b/arch/x86/kernel/entry_32.S
index 000d419..1c30976 100644
--- a/arch/x86/kernel/entry_32.S
+++ b/arch/x86/kernel/entry_32.S
@@ -395,10 +395,13 @@ sysenter_past_esp:
 	/*CFI_REL_OFFSET cs, 0*/
 	/*
 	 * Push current_thread_info()->sysenter_return to the stack.
-	 * A tiny bit of offset fixup is necessary - 4*4 means the 4 words
-	 * pushed above; +8 corresponds to copy_thread's esp0 setting.
+	 * A tiny bit of offset fixup is necessary: TI_sysenter_return
+	 * is relative to thread_info, which is at the bottom of the
+	 * kernel stack page.  4*4 means the 4 words pushed above;
+	 * TOP_OF_KERNEL_STACK_PADDING takes us to the top of the stack;
+	 * and THREAD_SIZE takes us to the bottom.
 	 */
-	pushl_cfi ((TI_sysenter_return)-THREAD_SIZE+8+4*4)(%esp)
+	pushl_cfi ((TI_sysenter_return) - THREAD_SIZE + TOP_OF_KERNEL_STACK_PADDING + 4*4)(%esp)
 	CFI_REL_OFFSET eip, 0
 
 	pushl_cfi %eax
@@ -432,7 +435,7 @@ sysenter_after_call:
 	TRACE_IRQS_OFF
 	movl TI_flags(%ebp), %ecx
 	testl $_TIF_ALLWORK_MASK, %ecx
-	jne sysexit_audit
+	jnz sysexit_audit
 sysenter_exit:
 /* if something modifies registers it must also disable sysexit */
 	movl PT_EIP(%esp), %edx
@@ -460,7 +463,7 @@ sysenter_audit:
 
 sysexit_audit:
 	testl $(_TIF_ALLWORK_MASK & ~_TIF_SYSCALL_AUDIT), %ecx
-	jne syscall_exit_work
+	jnz syscall_exit_work
 	TRACE_IRQS_ON
 	ENABLE_INTERRUPTS(CLBR_ANY)
 	movl %eax,%edx		/* second arg, syscall return value */
@@ -472,7 +475,7 @@ sysexit_audit:
 	TRACE_IRQS_OFF
 	movl TI_flags(%ebp), %ecx
 	testl $(_TIF_ALLWORK_MASK & ~_TIF_SYSCALL_AUDIT), %ecx
-	jne syscall_exit_work
+	jnz syscall_exit_work
 	movl PT_EAX(%esp),%eax	/* reload syscall return value */
 	jmp sysenter_exit
 #endif
@@ -510,7 +513,7 @@ syscall_exit:
 	TRACE_IRQS_OFF
 	movl TI_flags(%ebp), %ecx
 	testl $_TIF_ALLWORK_MASK, %ecx	# current->work
-	jne syscall_exit_work
+	jnz syscall_exit_work
 
 restore_all:
 	TRACE_IRQS_IRET
@@ -612,7 +615,7 @@ work_notifysig:				# deal with pending signals and
 #ifdef CONFIG_VM86
 	testl $X86_EFLAGS_VM, PT_EFLAGS(%esp)
 	movl %esp, %eax
-	jne work_notifysig_v86		# returning to kernel-space or
+	jnz work_notifysig_v86		# returning to kernel-space or
 					# vm86-space
 1:
 #else
@@ -720,43 +723,22 @@ END(sysenter_badsys)
 .endm
 
 /*
- * Build the entry stubs and pointer table with some assembler magic.
- * We pack 7 stubs into a single 32-byte chunk, which will fit in a
- * single cache line on all modern x86 implementations.
+ * Build the entry stubs with some assembler magic.
+ * We pack 1 stub into every 8-byte block.
  */
-.section .init.rodata,"a"
-ENTRY(interrupt)
-.section .entry.text, "ax"
-	.p2align 5
-	.p2align CONFIG_X86_L1_CACHE_SHIFT
+	.align 8
 ENTRY(irq_entries_start)
 	RING0_INT_FRAME
-vector=FIRST_EXTERNAL_VECTOR
-.rept (FIRST_SYSTEM_VECTOR-FIRST_EXTERNAL_VECTOR+6)/7
-	.balign 32
-  .rept	7
-    .if vector < FIRST_SYSTEM_VECTOR
-      .if vector <> FIRST_EXTERNAL_VECTOR
+    vector=FIRST_EXTERNAL_VECTOR
+    .rept (FIRST_SYSTEM_VECTOR - FIRST_EXTERNAL_VECTOR)
+	pushl_cfi $(~vector+0x80)	/* Note: always in signed byte range */
+    vector=vector+1
+	jmp	common_interrupt
 	CFI_ADJUST_CFA_OFFSET -4
-      .endif
-1:	pushl_cfi $(~vector+0x80)	/* Note: always in signed byte range */
-      .if ((vector-FIRST_EXTERNAL_VECTOR)%7) <> 6
-	jmp 2f
-      .endif
-      .previous
-	.long 1b
-      .section .entry.text, "ax"
-vector=vector+1
-    .endif
-  .endr
-2:	jmp common_interrupt
-.endr
+	.align	8
+    .endr
 END(irq_entries_start)
 
-.previous
-END(interrupt)
-.previous
-
 /*
  * the CPU automatically disables interrupts when executing an IRQ vector,
  * so IRQ-flags tracing has to follow that:
@@ -816,15 +798,9 @@ ENTRY(simd_coprocessor_error)
 	pushl_cfi $0
 #ifdef CONFIG_X86_INVD_BUG
 	/* AMD 486 bug: invd from userspace calls exception 19 instead of #GP */
-661:	pushl_cfi $do_general_protection
-662:
-.section .altinstructions,"a"
-	altinstruction_entry 661b, 663f, X86_FEATURE_XMM, 662b-661b, 664f-663f
-.previous
-.section .altinstr_replacement,"ax"
-663:	pushl $do_simd_coprocessor_error
-664:
-.previous
+	ALTERNATIVE "pushl_cfi $do_general_protection",	\
+		    "pushl $do_simd_coprocessor_error", \
+		    X86_FEATURE_XMM
 #else
 	pushl_cfi $do_simd_coprocessor_error
 #endif
@@ -982,6 +958,9 @@ ENTRY(xen_hypervisor_callback)
 ENTRY(xen_do_upcall)
 1:	mov %esp, %eax
 	call xen_evtchn_do_upcall
+#ifndef CONFIG_PREEMPT
+	call xen_maybe_preempt_hcall
+#endif
 	jmp  ret_from_intr
 	CFI_ENDPROC
 ENDPROC(xen_hypervisor_callback)
@@ -1237,20 +1216,13 @@ error_code:
 	/*CFI_REL_OFFSET es, 0*/
 	pushl_cfi %ds
 	/*CFI_REL_OFFSET ds, 0*/
-	pushl_cfi %eax
-	CFI_REL_OFFSET eax, 0
-	pushl_cfi %ebp
-	CFI_REL_OFFSET ebp, 0
-	pushl_cfi %edi
-	CFI_REL_OFFSET edi, 0
-	pushl_cfi %esi
-	CFI_REL_OFFSET esi, 0
-	pushl_cfi %edx
-	CFI_REL_OFFSET edx, 0
-	pushl_cfi %ecx
-	CFI_REL_OFFSET ecx, 0
-	pushl_cfi %ebx
-	CFI_REL_OFFSET ebx, 0
+	pushl_cfi_reg eax
+	pushl_cfi_reg ebp
+	pushl_cfi_reg edi
+	pushl_cfi_reg esi
+	pushl_cfi_reg edx
+	pushl_cfi_reg ecx
+	pushl_cfi_reg ebx
 	cld
 	movl $(__KERNEL_PERCPU), %ecx
 	movl %ecx, %fs
diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S
index db13655..c7b2384 100644
--- a/arch/x86/kernel/entry_64.S
+++ b/arch/x86/kernel/entry_64.S
@@ -14,27 +14,14 @@
  * NOTE: This code handles signal-recognition, which happens every time
  * after an interrupt and after each system call.
  *
- * Normal syscalls and interrupts don't save a full stack frame, this is
- * only done for syscall tracing, signals or fork/exec et.al.
- *
  * A note on terminology:
- * - top of stack: Architecture defined interrupt frame from SS to RIP
+ * - iret frame: Architecture defined interrupt frame from SS to RIP
  * at the top of the kernel process stack.
- * - partial stack frame: partially saved registers up to R11.
- * - full stack frame: Like partial stack frame, but all register saved.
  *
  * Some macro usage:
  * - CFI macros are used to generate dwarf2 unwind information for better
  * backtraces. They don't change any code.
- * - SAVE_ALL/RESTORE_ALL - Save/restore all registers
- * - SAVE_ARGS/RESTORE_ARGS - Save/restore registers that C functions modify.
- * There are unfortunately lots of special cases where some registers
- * not touched. The macro is a big mess that should be cleaned up.
- * - SAVE_REST/RESTORE_REST - Handle the registers not saved by SAVE_ARGS.
- * Gives a full stack frame.
  * - ENTRY/END Define functions in the symbol table.
- * - FIXUP_TOP_OF_STACK/RESTORE_TOP_OF_STACK - Fix up the hardware stack
- * frame that is otherwise undefined after a SYSCALL
  * - TRACE_IRQ_* - Trace hard interrupt state for lock debugging.
  * - idtentry - Define exception entry points.
  */
@@ -70,10 +57,6 @@
 	.section .entry.text, "ax"
 
 
-#ifndef CONFIG_PREEMPT
-#define retint_kernel retint_restore_args
-#endif
-
 #ifdef CONFIG_PARAVIRT
 ENTRY(native_usergs_sysret64)
 	swapgs
@@ -82,9 +65,9 @@ ENDPROC(native_usergs_sysret64)
 #endif /* CONFIG_PARAVIRT */
 
 
-.macro TRACE_IRQS_IRETQ offset=ARGOFFSET
+.macro TRACE_IRQS_IRETQ
 #ifdef CONFIG_TRACE_IRQFLAGS
-	bt   $9,EFLAGS-\offset(%rsp)	/* interrupts off? */
+	bt   $9,EFLAGS(%rsp)	/* interrupts off? */
 	jnc  1f
 	TRACE_IRQS_ON
 1:
@@ -116,8 +99,8 @@ ENDPROC(native_usergs_sysret64)
 	call debug_stack_reset
 .endm
 
-.macro TRACE_IRQS_IRETQ_DEBUG offset=ARGOFFSET
-	bt   $9,EFLAGS-\offset(%rsp)	/* interrupts off? */
+.macro TRACE_IRQS_IRETQ_DEBUG
+	bt   $9,EFLAGS(%rsp)	/* interrupts off? */
 	jnc  1f
 	TRACE_IRQS_ON_DEBUG
 1:
@@ -130,34 +113,7 @@ ENDPROC(native_usergs_sysret64)
 #endif
 
 /*
- * C code is not supposed to know about undefined top of stack. Every time
- * a C function with an pt_regs argument is called from the SYSCALL based
- * fast path FIXUP_TOP_OF_STACK is needed.
- * RESTORE_TOP_OF_STACK syncs the syscall state after any possible ptregs
- * manipulation.
- */
-
-	/* %rsp:at FRAMEEND */
-	.macro FIXUP_TOP_OF_STACK tmp offset=0
-	movq PER_CPU_VAR(old_rsp),\tmp
-	movq \tmp,RSP+\offset(%rsp)
-	movq $__USER_DS,SS+\offset(%rsp)
-	movq $__USER_CS,CS+\offset(%rsp)
-	movq RIP+\offset(%rsp),\tmp  /* get rip */
-	movq \tmp,RCX+\offset(%rsp)  /* copy it to rcx as sysret would do */
-	movq R11+\offset(%rsp),\tmp  /* get eflags */
-	movq \tmp,EFLAGS+\offset(%rsp)
-	.endm
-
-	.macro RESTORE_TOP_OF_STACK tmp offset=0
-	movq RSP+\offset(%rsp),\tmp
-	movq \tmp,PER_CPU_VAR(old_rsp)
-	movq EFLAGS+\offset(%rsp),\tmp
-	movq \tmp,R11+\offset(%rsp)
-	.endm
-
-/*
- * initial frame state for interrupts (and exceptions without error code)
+ * empty frame
  */
 	.macro EMPTY_FRAME start=1 offset=0
 	.if \start
@@ -173,12 +129,12 @@ ENDPROC(native_usergs_sysret64)
  * initial frame state for interrupts (and exceptions without error code)
  */
 	.macro INTR_FRAME start=1 offset=0
-	EMPTY_FRAME \start, SS+8+\offset-RIP
-	/*CFI_REL_OFFSET ss, SS+\offset-RIP*/
-	CFI_REL_OFFSET rsp, RSP+\offset-RIP
-	/*CFI_REL_OFFSET rflags, EFLAGS+\offset-RIP*/
-	/*CFI_REL_OFFSET cs, CS+\offset-RIP*/
-	CFI_REL_OFFSET rip, RIP+\offset-RIP
+	EMPTY_FRAME \start, 5*8+\offset
+	/*CFI_REL_OFFSET ss, 4*8+\offset*/
+	CFI_REL_OFFSET rsp, 3*8+\offset
+	/*CFI_REL_OFFSET rflags, 2*8+\offset*/
+	/*CFI_REL_OFFSET cs, 1*8+\offset*/
+	CFI_REL_OFFSET rip, 0*8+\offset
 	.endm
 
 /*
@@ -186,30 +142,23 @@ ENDPROC(native_usergs_sysret64)
  * with vector already pushed)
  */
 	.macro XCPT_FRAME start=1 offset=0
-	INTR_FRAME \start, RIP+\offset-ORIG_RAX
-	.endm
-
-/*
- * frame that enables calling into C.
- */
-	.macro PARTIAL_FRAME start=1 offset=0
-	XCPT_FRAME \start, ORIG_RAX+\offset-ARGOFFSET
-	CFI_REL_OFFSET rdi, RDI+\offset-ARGOFFSET
-	CFI_REL_OFFSET rsi, RSI+\offset-ARGOFFSET
-	CFI_REL_OFFSET rdx, RDX+\offset-ARGOFFSET
-	CFI_REL_OFFSET rcx, RCX+\offset-ARGOFFSET
-	CFI_REL_OFFSET rax, RAX+\offset-ARGOFFSET
-	CFI_REL_OFFSET r8, R8+\offset-ARGOFFSET
-	CFI_REL_OFFSET r9, R9+\offset-ARGOFFSET
-	CFI_REL_OFFSET r10, R10+\offset-ARGOFFSET
-	CFI_REL_OFFSET r11, R11+\offset-ARGOFFSET
+	INTR_FRAME \start, 1*8+\offset
 	.endm
 
 /*
  * frame that enables passing a complete pt_regs to a C function.
  */
 	.macro DEFAULT_FRAME start=1 offset=0
-	PARTIAL_FRAME \start, R11+\offset-R15
+	XCPT_FRAME \start, ORIG_RAX+\offset
+	CFI_REL_OFFSET rdi, RDI+\offset
+	CFI_REL_OFFSET rsi, RSI+\offset
+	CFI_REL_OFFSET rdx, RDX+\offset
+	CFI_REL_OFFSET rcx, RCX+\offset
+	CFI_REL_OFFSET rax, RAX+\offset
+	CFI_REL_OFFSET r8, R8+\offset
+	CFI_REL_OFFSET r9, R9+\offset
+	CFI_REL_OFFSET r10, R10+\offset
+	CFI_REL_OFFSET r11, R11+\offset
 	CFI_REL_OFFSET rbx, RBX+\offset
 	CFI_REL_OFFSET rbp, RBP+\offset
 	CFI_REL_OFFSET r12, R12+\offset
@@ -218,102 +167,30 @@ ENDPROC(native_usergs_sysret64)
 	CFI_REL_OFFSET r15, R15+\offset
 	.endm
 
-ENTRY(save_paranoid)
-	XCPT_FRAME 1 RDI+8
-	cld
-	movq %rdi, RDI+8(%rsp)
-	movq %rsi, RSI+8(%rsp)
-	movq_cfi rdx, RDX+8
-	movq_cfi rcx, RCX+8
-	movq_cfi rax, RAX+8
-	movq %r8, R8+8(%rsp)
-	movq %r9, R9+8(%rsp)
-	movq %r10, R10+8(%rsp)
-	movq %r11, R11+8(%rsp)
-	movq_cfi rbx, RBX+8
-	movq %rbp, RBP+8(%rsp)
-	movq %r12, R12+8(%rsp)
-	movq %r13, R13+8(%rsp)
-	movq %r14, R14+8(%rsp)
-	movq %r15, R15+8(%rsp)
-	movl $1,%ebx
-	movl $MSR_GS_BASE,%ecx
-	rdmsr
-	testl %edx,%edx
-	js 1f	/* negative -> in kernel */
-	SWAPGS
-	xorl %ebx,%ebx
-1:	ret
-	CFI_ENDPROC
-END(save_paranoid)
-
 /*
- * A newly forked process directly context switches into this address.
+ * 64bit SYSCALL instruction entry. Up to 6 arguments in registers.
  *
- * rdi: prev task we switched from
- */
-ENTRY(ret_from_fork)
-	DEFAULT_FRAME
-
-	LOCK ; btr $TIF_FORK,TI_flags(%r8)
-
-	pushq_cfi $0x0002
-	popfq_cfi				# reset kernel eflags
-
-	call schedule_tail			# rdi: 'prev' task parameter
-
-	GET_THREAD_INFO(%rcx)
-
-	RESTORE_REST
-
-	testl $3, CS-ARGOFFSET(%rsp)		# from kernel_thread?
-	jz   1f
-
-	testl $_TIF_IA32, TI_flags(%rcx)	# 32-bit compat task needs IRET
-	jnz  int_ret_from_sys_call
-
-	RESTORE_TOP_OF_STACK %rdi, -ARGOFFSET
-	jmp ret_from_sys_call			# go to the SYSRET fastpath
-
-1:
-	subq $REST_SKIP, %rsp	# leave space for volatiles
-	CFI_ADJUST_CFA_OFFSET	REST_SKIP
-	movq %rbp, %rdi
-	call *%rbx
-	movl $0, RAX(%rsp)
-	RESTORE_REST
-	jmp int_ret_from_sys_call
-	CFI_ENDPROC
-END(ret_from_fork)
-
-/*
- * System call entry. Up to 6 arguments in registers are supported.
+ * 64bit SYSCALL saves rip to rcx, clears rflags.RF, then saves rflags to r11,
+ * then loads new ss, cs, and rip from previously programmed MSRs.
+ * rflags gets masked by a value from another MSR (so CLD and CLAC
+ * are not needed). SYSCALL does not save anything on the stack
+ * and does not change rsp.
  *
- * SYSCALL does not save anything on the stack and does not change the
- * stack pointer.  However, it does mask the flags register for us, so
- * CLD and CLAC are not needed.
- */
-
-/*
- * Register setup:
+ * Registers on entry:
  * rax  system call number
+ * rcx  return address
+ * r11  saved rflags (note: r11 is callee-clobbered register in C ABI)
  * rdi  arg0
- * rcx  return address for syscall/sysret, C arg3
  * rsi  arg1
  * rdx  arg2
- * r10  arg3 	(--> moved to rcx for C)
+ * r10  arg3 (needs to be moved to rcx to conform to C ABI)
  * r8   arg4
  * r9   arg5
- * r11  eflags for syscall/sysret, temporary for C
- * r12-r15,rbp,rbx saved by C code, not touched.
+ * (note: r12-r15,rbp,rbx are callee-preserved in C ABI)
  *
- * Interrupts are off on entry.
  * Only called from user space.
  *
- * XXX	if we had a free scratch register we could save the RSP into the stack frame
- *      and report it properly in ps. Unfortunately we haven't.
- *
- * When user can change the frames always force IRET. That is because
+ * When user can change pt_regs->foo always force IRET. That is because
  * it deals with uncanonical addresses better. SYSRET has trouble
  * with them due to bugs in both AMD and Intel CPUs.
  */
@@ -321,9 +198,15 @@ END(ret_from_fork)
 ENTRY(system_call)
 	CFI_STARTPROC	simple
 	CFI_SIGNAL_FRAME
-	CFI_DEF_CFA	rsp,KERNEL_STACK_OFFSET
+	CFI_DEF_CFA	rsp,0
 	CFI_REGISTER	rip,rcx
 	/*CFI_REGISTER	rflags,r11*/
+
+	/*
+	 * Interrupts are off on entry.
+	 * We do not frame this tiny irq-off block with TRACE_IRQS_OFF/ON,
+	 * it is too small to ever cause noticeable irq latency.
+	 */
 	SWAPGS_UNSAFE_STACK
 	/*
 	 * A hypervisor implementation might want to use a label
@@ -332,18 +215,38 @@ ENTRY(system_call)
 	 */
 GLOBAL(system_call_after_swapgs)
 
-	movq	%rsp,PER_CPU_VAR(old_rsp)
+	movq	%rsp,PER_CPU_VAR(rsp_scratch)
 	movq	PER_CPU_VAR(kernel_stack),%rsp
+
+	/* Construct struct pt_regs on stack */
+	pushq_cfi $__USER_DS			/* pt_regs->ss */
+	pushq_cfi PER_CPU_VAR(rsp_scratch)	/* pt_regs->sp */
 	/*
-	 * No need to follow this irqs off/on section - it's straight
-	 * and short:
+	 * Re-enable interrupts.
+	 * We use 'rsp_scratch' as a scratch space, hence irq-off block above
+	 * must execute atomically in the face of possible interrupt-driven
+	 * task preemption. We must enable interrupts only after we're done
+	 * with using rsp_scratch:
 	 */
 	ENABLE_INTERRUPTS(CLBR_NONE)
-	SAVE_ARGS 8, 0, rax_enosys=1
-	movq_cfi rax,(ORIG_RAX-ARGOFFSET)
-	movq  %rcx,RIP-ARGOFFSET(%rsp)
-	CFI_REL_OFFSET rip,RIP-ARGOFFSET
-	testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
+	pushq_cfi	%r11			/* pt_regs->flags */
+	pushq_cfi	$__USER_CS		/* pt_regs->cs */
+	pushq_cfi	%rcx			/* pt_regs->ip */
+	CFI_REL_OFFSET rip,0
+	pushq_cfi_reg	rax			/* pt_regs->orig_ax */
+	pushq_cfi_reg	rdi			/* pt_regs->di */
+	pushq_cfi_reg	rsi			/* pt_regs->si */
+	pushq_cfi_reg	rdx			/* pt_regs->dx */
+	pushq_cfi_reg	rcx			/* pt_regs->cx */
+	pushq_cfi	$-ENOSYS		/* pt_regs->ax */
+	pushq_cfi_reg	r8			/* pt_regs->r8 */
+	pushq_cfi_reg	r9			/* pt_regs->r9 */
+	pushq_cfi_reg	r10			/* pt_regs->r10 */
+	pushq_cfi_reg	r11			/* pt_regs->r11 */
+	sub	$(6*8),%rsp /* pt_regs->bp,bx,r12-15 not saved */
+	CFI_ADJUST_CFA_OFFSET 6*8
+
+	testl $_TIF_WORK_SYSCALL_ENTRY, ASM_THREAD_INFO(TI_flags, %rsp, SIZEOF_PTREGS)
 	jnz tracesys
 system_call_fastpath:
 #if __SYSCALL_MASK == ~0
@@ -352,82 +255,96 @@ system_call_fastpath:
 	andl $__SYSCALL_MASK,%eax
 	cmpl $__NR_syscall_max,%eax
 #endif
-	ja ret_from_sys_call  /* and return regs->ax */
+	ja	1f	/* return -ENOSYS (already in pt_regs->ax) */
 	movq %r10,%rcx
-	call *sys_call_table(,%rax,8)  # XXX:	 rip relative
-	movq %rax,RAX-ARGOFFSET(%rsp)
+	call *sys_call_table(,%rax,8)
+	movq %rax,RAX(%rsp)
+1:
 /*
- * Syscall return path ending with SYSRET (fast path)
- * Has incomplete stack frame and undefined top of stack.
+ * Syscall return path ending with SYSRET (fast path).
+ * Has incompletely filled pt_regs.
  */
-ret_from_sys_call:
-	testl $_TIF_ALLWORK_MASK,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
-	jnz int_ret_from_sys_call_fixup	/* Go the the slow path */
-
 	LOCKDEP_SYS_EXIT
+	/*
+	 * We do not frame this tiny irq-off block with TRACE_IRQS_OFF/ON,
+	 * it is too small to ever cause noticeable irq latency.
+	 */
 	DISABLE_INTERRUPTS(CLBR_NONE)
-	TRACE_IRQS_OFF
-	CFI_REMEMBER_STATE
+
 	/*
-	 * sysretq will re-enable interrupts:
+	 * We must check ti flags with interrupts (or at least preemption)
+	 * off because we must *never* return to userspace without
+	 * processing exit work that is enqueued if we're preempted here.
+	 * In particular, returning to userspace with any of the one-shot
+	 * flags (TIF_NOTIFY_RESUME, TIF_USER_RETURN_NOTIFY, etc) set is
+	 * very bad.
 	 */
-	TRACE_IRQS_ON
-	movq RIP-ARGOFFSET(%rsp),%rcx
+	testl $_TIF_ALLWORK_MASK, ASM_THREAD_INFO(TI_flags, %rsp, SIZEOF_PTREGS)
+	jnz int_ret_from_sys_call_irqs_off	/* Go to the slow path */
+
+	CFI_REMEMBER_STATE
+
+	RESTORE_C_REGS_EXCEPT_RCX_R11
+	movq	RIP(%rsp),%rcx
 	CFI_REGISTER	rip,rcx
-	RESTORE_ARGS 1,-ARG_SKIP,0
+	movq	EFLAGS(%rsp),%r11
 	/*CFI_REGISTER	rflags,r11*/
-	movq	PER_CPU_VAR(old_rsp), %rsp
+	movq	RSP(%rsp),%rsp
+	/*
+	 * 64bit SYSRET restores rip from rcx,
+	 * rflags from r11 (but RF and VM bits are forced to 0),
+	 * cs and ss are loaded from MSRs.
+	 * Restoration of rflags re-enables interrupts.
+	 */
 	USERGS_SYSRET64
 
 	CFI_RESTORE_STATE
 
-int_ret_from_sys_call_fixup:
-	FIXUP_TOP_OF_STACK %r11, -ARGOFFSET
-	jmp int_ret_from_sys_call
-
-	/* Do syscall tracing */
+	/* Do syscall entry tracing */
 tracesys:
-	leaq -REST_SKIP(%rsp), %rdi
-	movq $AUDIT_ARCH_X86_64, %rsi
+	movq %rsp, %rdi
+	movl $AUDIT_ARCH_X86_64, %esi
 	call syscall_trace_enter_phase1
 	test %rax, %rax
 	jnz tracesys_phase2		/* if needed, run the slow path */
-	LOAD_ARGS 0			/* else restore clobbered regs */
+	RESTORE_C_REGS_EXCEPT_RAX	/* else restore clobbered regs */
+	movq ORIG_RAX(%rsp), %rax
 	jmp system_call_fastpath	/*      and return to the fast path */
 
 tracesys_phase2:
-	SAVE_REST
-	FIXUP_TOP_OF_STACK %rdi
+	SAVE_EXTRA_REGS
 	movq %rsp, %rdi
-	movq $AUDIT_ARCH_X86_64, %rsi
+	movl $AUDIT_ARCH_X86_64, %esi
 	movq %rax,%rdx
 	call syscall_trace_enter_phase2
 
 	/*
-	 * Reload arg registers from stack in case ptrace changed them.
+	 * Reload registers from stack in case ptrace changed them.
 	 * We don't reload %rax because syscall_trace_entry_phase2() returned
 	 * the value it wants us to use in the table lookup.
 	 */
-	LOAD_ARGS ARGOFFSET, 1
-	RESTORE_REST
+	RESTORE_C_REGS_EXCEPT_RAX
+	RESTORE_EXTRA_REGS
 #if __SYSCALL_MASK == ~0
 	cmpq $__NR_syscall_max,%rax
 #else
 	andl $__SYSCALL_MASK,%eax
 	cmpl $__NR_syscall_max,%eax
 #endif
-	ja   int_ret_from_sys_call	/* RAX(%rsp) is already set */
+	ja	1f	/* return -ENOSYS (already in pt_regs->ax) */
 	movq %r10,%rcx	/* fixup for C */
 	call *sys_call_table(,%rax,8)
-	movq %rax,RAX-ARGOFFSET(%rsp)
-	/* Use IRET because user could have changed frame */
+	movq %rax,RAX(%rsp)
+1:
+	/* Use IRET because user could have changed pt_regs->foo */
 
 /*
  * Syscall return path ending with IRET.
- * Has correct top of stack, but partial stack frame.
+ * Has correct iret frame.
  */
 GLOBAL(int_ret_from_sys_call)
 	DISABLE_INTERRUPTS(CLBR_NONE)
+int_ret_from_sys_call_irqs_off: /* jumps come here from the irqs-off SYSRET path */
 	TRACE_IRQS_OFF
 	movl $_TIF_ALLWORK_MASK,%edi
 	/* edi:	mask to check */
@@ -437,8 +354,8 @@ GLOBAL(int_with_check)
 	movl TI_flags(%rcx),%edx
 	andl %edi,%edx
 	jnz   int_careful
-	andl    $~TS_COMPAT,TI_status(%rcx)
-	jmp   retint_swapgs
+	andl	$~TS_COMPAT,TI_status(%rcx)
+	jmp	syscall_return
 
 	/* Either reschedule or signal or syscall exit tracking needed. */
 	/* First do a reschedule test. */
@@ -455,12 +372,11 @@ int_careful:
 	TRACE_IRQS_OFF
 	jmp int_with_check
 
-	/* handle signals and tracing -- both require a full stack frame */
+	/* handle signals and tracing -- both require a full pt_regs */
 int_very_careful:
 	TRACE_IRQS_ON
 	ENABLE_INTERRUPTS(CLBR_NONE)
-int_check_syscall_exit_work:
-	SAVE_REST
+	SAVE_EXTRA_REGS
 	/* Check for syscall exit trace */
 	testl $_TIF_WORK_SYSCALL_EXIT,%edx
 	jz int_signal
@@ -479,86 +395,192 @@ int_signal:
 	call do_notify_resume
 1:	movl $_TIF_WORK_MASK,%edi
 int_restore_rest:
-	RESTORE_REST
+	RESTORE_EXTRA_REGS
 	DISABLE_INTERRUPTS(CLBR_NONE)
 	TRACE_IRQS_OFF
 	jmp int_with_check
+
+syscall_return:
+	/* The IRETQ could re-enable interrupts: */
+	DISABLE_INTERRUPTS(CLBR_ANY)
+	TRACE_IRQS_IRETQ
+
+	/*
+	 * Try to use SYSRET instead of IRET if we're returning to
+	 * a completely clean 64-bit userspace context.
+	 */
+	movq RCX(%rsp),%rcx
+	cmpq %rcx,RIP(%rsp)		/* RCX == RIP */
+	jne opportunistic_sysret_failed
+
+	/*
+	 * On Intel CPUs, SYSRET with non-canonical RCX/RIP will #GP
+	 * in kernel space.  This essentially lets the user take over
+	 * the kernel, since userspace controls RSP.  It's not worth
+	 * testing for canonicalness exactly -- this check detects any
+	 * of the 17 high bits set, which is true for non-canonical
+	 * or kernel addresses.  (This will pessimize vsyscall=native.
+	 * Big deal.)
+	 *
+	 * If virtual addresses ever become wider, this will need
+	 * to be updated to remain correct on both old and new CPUs.
+	 */
+	.ifne __VIRTUAL_MASK_SHIFT - 47
+	.error "virtual address width changed -- SYSRET checks need update"
+	.endif
+	shr $__VIRTUAL_MASK_SHIFT, %rcx
+	jnz opportunistic_sysret_failed
+
+	cmpq $__USER_CS,CS(%rsp)	/* CS must match SYSRET */
+	jne opportunistic_sysret_failed
+
+	movq R11(%rsp),%r11
+	cmpq %r11,EFLAGS(%rsp)		/* R11 == RFLAGS */
+	jne opportunistic_sysret_failed
+
+	/*
+	 * SYSRET can't restore RF.  SYSRET can restore TF, but unlike IRET,
+	 * restoring TF results in a trap from userspace immediately after
+	 * SYSRET.  This would cause an infinite loop whenever #DB happens
+	 * with register state that satisfies the opportunistic SYSRET
+	 * conditions.  For example, single-stepping this user code:
+	 *
+	 *           movq $stuck_here,%rcx
+	 *           pushfq
+	 *           popq %r11
+	 *   stuck_here:
+	 *
+	 * would never get past 'stuck_here'.
+	 */
+	testq $(X86_EFLAGS_RF|X86_EFLAGS_TF), %r11
+	jnz opportunistic_sysret_failed
+
+	/* nothing to check for RSP */
+
+	cmpq $__USER_DS,SS(%rsp)	/* SS must match SYSRET */
+	jne opportunistic_sysret_failed
+
+	/*
+	 * We win!  This label is here just for ease of understanding
+	 * perf profiles.  Nothing jumps here.
+	 */
+syscall_return_via_sysret:
+	CFI_REMEMBER_STATE
+	/* r11 is already restored (see code above) */
+	RESTORE_C_REGS_EXCEPT_R11
+	movq RSP(%rsp),%rsp
+	USERGS_SYSRET64
+	CFI_RESTORE_STATE
+
+opportunistic_sysret_failed:
+	SWAPGS
+	jmp	restore_c_regs_and_iret
 	CFI_ENDPROC
 END(system_call)
 
+
 	.macro FORK_LIKE func
 ENTRY(stub_\func)
 	CFI_STARTPROC
-	popq	%r11			/* save return address */
-	PARTIAL_FRAME 0
-	SAVE_REST
-	pushq	%r11			/* put it back on stack */
-	FIXUP_TOP_OF_STACK %r11, 8
-	DEFAULT_FRAME 0 8		/* offset 8: return address */
-	call sys_\func
-	RESTORE_TOP_OF_STACK %r11, 8
-	ret $REST_SKIP		/* pop extended registers */
+	DEFAULT_FRAME 0, 8		/* offset 8: return address */
+	SAVE_EXTRA_REGS 8
+	jmp sys_\func
 	CFI_ENDPROC
 END(stub_\func)
 	.endm
 
-	.macro FIXED_FRAME label,func
-ENTRY(\label)
-	CFI_STARTPROC
-	PARTIAL_FRAME 0 8		/* offset 8: return address */
-	FIXUP_TOP_OF_STACK %r11, 8-ARGOFFSET
-	call \func
-	RESTORE_TOP_OF_STACK %r11, 8-ARGOFFSET
-	ret
-	CFI_ENDPROC
-END(\label)
-	.endm
-
 	FORK_LIKE  clone
 	FORK_LIKE  fork
 	FORK_LIKE  vfork
-	FIXED_FRAME stub_iopl, sys_iopl
 
 ENTRY(stub_execve)
 	CFI_STARTPROC
-	addq $8, %rsp
-	PARTIAL_FRAME 0
-	SAVE_REST
-	FIXUP_TOP_OF_STACK %r11
-	call sys_execve
-	movq %rax,RAX(%rsp)
-	RESTORE_REST
-	jmp int_ret_from_sys_call
+	DEFAULT_FRAME 0, 8
+	call	sys_execve
+return_from_execve:
+	testl	%eax, %eax
+	jz	1f
+	/* exec failed, can use fast SYSRET code path in this case */
+	ret
+1:
+	/* must use IRET code path (pt_regs->cs may have changed) */
+	addq	$8, %rsp
+	CFI_ADJUST_CFA_OFFSET -8
+	ZERO_EXTRA_REGS
+	movq	%rax,RAX(%rsp)
+	jmp	int_ret_from_sys_call
 	CFI_ENDPROC
 END(stub_execve)
-
-ENTRY(stub_execveat)
+/*
+ * Remaining execve stubs are only 7 bytes long.
+ * ENTRY() often aligns to 16 bytes, which in this case has no benefits.
+ */
+	.align	8
+GLOBAL(stub_execveat)
 	CFI_STARTPROC
-	addq $8, %rsp
-	PARTIAL_FRAME 0
-	SAVE_REST
-	FIXUP_TOP_OF_STACK %r11
-	call sys_execveat
-	RESTORE_TOP_OF_STACK %r11
-	movq %rax,RAX(%rsp)
-	RESTORE_REST
-	jmp int_ret_from_sys_call
+	DEFAULT_FRAME 0, 8
+	call	sys_execveat
+	jmp	return_from_execve
 	CFI_ENDPROC
 END(stub_execveat)
 
+#ifdef CONFIG_X86_X32_ABI
+	.align	8
+GLOBAL(stub_x32_execve)
+	CFI_STARTPROC
+	DEFAULT_FRAME 0, 8
+	call	compat_sys_execve
+	jmp	return_from_execve
+	CFI_ENDPROC
+END(stub_x32_execve)
+	.align	8
+GLOBAL(stub_x32_execveat)
+	CFI_STARTPROC
+	DEFAULT_FRAME 0, 8
+	call	compat_sys_execveat
+	jmp	return_from_execve
+	CFI_ENDPROC
+END(stub_x32_execveat)
+#endif
+
+#ifdef CONFIG_IA32_EMULATION
+	.align	8
+GLOBAL(stub32_execve)
+	CFI_STARTPROC
+	call	compat_sys_execve
+	jmp	return_from_execve
+	CFI_ENDPROC
+END(stub32_execve)
+	.align	8
+GLOBAL(stub32_execveat)
+	CFI_STARTPROC
+	call	compat_sys_execveat
+	jmp	return_from_execve
+	CFI_ENDPROC
+END(stub32_execveat)
+#endif
+
 /*
  * sigreturn is special because it needs to restore all registers on return.
  * This cannot be done with SYSRET, so use the IRET return path instead.
  */
 ENTRY(stub_rt_sigreturn)
 	CFI_STARTPROC
-	addq $8, %rsp
-	PARTIAL_FRAME 0
-	SAVE_REST
-	FIXUP_TOP_OF_STACK %r11
+	DEFAULT_FRAME 0, 8
+	/*
+	 * SAVE_EXTRA_REGS result is not normally needed:
+	 * sigreturn overwrites all pt_regs->GPREGS.
+	 * But sigreturn can fail (!), and there is no easy way to detect that.
+	 * To make sure RESTORE_EXTRA_REGS doesn't restore garbage on error,
+	 * we SAVE_EXTRA_REGS here.
+	 */
+	SAVE_EXTRA_REGS 8
 	call sys_rt_sigreturn
-	movq %rax,RAX(%rsp) # fixme, this could be done at the higher layer
-	RESTORE_REST
+return_from_stub:
+	addq	$8, %rsp
+	CFI_ADJUST_CFA_OFFSET -8
+	RESTORE_EXTRA_REGS
+	movq %rax,RAX(%rsp)
 	jmp int_ret_from_sys_call
 	CFI_ENDPROC
 END(stub_rt_sigreturn)
@@ -566,86 +588,70 @@ END(stub_rt_sigreturn)
 #ifdef CONFIG_X86_X32_ABI
 ENTRY(stub_x32_rt_sigreturn)
 	CFI_STARTPROC
-	addq $8, %rsp
-	PARTIAL_FRAME 0
-	SAVE_REST
-	FIXUP_TOP_OF_STACK %r11
+	DEFAULT_FRAME 0, 8
+	SAVE_EXTRA_REGS 8
 	call sys32_x32_rt_sigreturn
-	movq %rax,RAX(%rsp) # fixme, this could be done at the higher layer
-	RESTORE_REST
-	jmp int_ret_from_sys_call
+	jmp  return_from_stub
 	CFI_ENDPROC
 END(stub_x32_rt_sigreturn)
+#endif
 
-ENTRY(stub_x32_execve)
-	CFI_STARTPROC
-	addq $8, %rsp
-	PARTIAL_FRAME 0
-	SAVE_REST
-	FIXUP_TOP_OF_STACK %r11
-	call compat_sys_execve
-	RESTORE_TOP_OF_STACK %r11
-	movq %rax,RAX(%rsp)
-	RESTORE_REST
-	jmp int_ret_from_sys_call
-	CFI_ENDPROC
-END(stub_x32_execve)
+/*
+ * A newly forked process directly context switches into this address.
+ *
+ * rdi: prev task we switched from
+ */
+ENTRY(ret_from_fork)
+	DEFAULT_FRAME
 
-ENTRY(stub_x32_execveat)
-	CFI_STARTPROC
-	addq $8, %rsp
-	PARTIAL_FRAME 0
-	SAVE_REST
-	FIXUP_TOP_OF_STACK %r11
-	call compat_sys_execveat
-	RESTORE_TOP_OF_STACK %r11
-	movq %rax,RAX(%rsp)
-	RESTORE_REST
+	LOCK ; btr $TIF_FORK,TI_flags(%r8)
+
+	pushq_cfi $0x0002
+	popfq_cfi				# reset kernel eflags
+
+	call schedule_tail			# rdi: 'prev' task parameter
+
+	RESTORE_EXTRA_REGS
+
+	testl $3,CS(%rsp)			# from kernel_thread?
+
+	/*
+	 * By the time we get here, we have no idea whether our pt_regs,
+	 * ti flags, and ti status came from the 64-bit SYSCALL fast path,
+	 * the slow path, or one of the ia32entry paths.
+	 * Use IRET code path to return, since it can safely handle
+	 * all of the above.
+	 */
+	jnz	int_ret_from_sys_call
+
+	/* We came from kernel_thread */
+	/* nb: we depend on RESTORE_EXTRA_REGS above */
+	movq %rbp, %rdi
+	call *%rbx
+	movl $0, RAX(%rsp)
+	RESTORE_EXTRA_REGS
 	jmp int_ret_from_sys_call
 	CFI_ENDPROC
-END(stub_x32_execveat)
-
-#endif
+END(ret_from_fork)
 
 /*
- * Build the entry stubs and pointer table with some assembler magic.
- * We pack 7 stubs into a single 32-byte chunk, which will fit in a
- * single cache line on all modern x86 implementations.
+ * Build the entry stubs with some assembler magic.
+ * We pack 1 stub into every 8-byte block.
  */
-	.section .init.rodata,"a"
-ENTRY(interrupt)
-	.section .entry.text
-	.p2align 5
-	.p2align CONFIG_X86_L1_CACHE_SHIFT
+	.align 8
 ENTRY(irq_entries_start)
 	INTR_FRAME
-vector=FIRST_EXTERNAL_VECTOR
-.rept (FIRST_SYSTEM_VECTOR-FIRST_EXTERNAL_VECTOR+6)/7
-	.balign 32
-  .rept	7
-    .if vector < FIRST_SYSTEM_VECTOR
-      .if vector <> FIRST_EXTERNAL_VECTOR
+    vector=FIRST_EXTERNAL_VECTOR
+    .rept (FIRST_SYSTEM_VECTOR - FIRST_EXTERNAL_VECTOR)
+	pushq_cfi $(~vector+0x80)	/* Note: always in signed byte range */
+    vector=vector+1
+	jmp	common_interrupt
 	CFI_ADJUST_CFA_OFFSET -8
-      .endif
-1:	pushq_cfi $(~vector+0x80)	/* Note: always in signed byte range */
-      .if ((vector-FIRST_EXTERNAL_VECTOR)%7) <> 6
-	jmp 2f
-      .endif
-      .previous
-	.quad 1b
-      .section .entry.text
-vector=vector+1
-    .endif
-  .endr
-2:	jmp common_interrupt
-.endr
+	.align	8
+    .endr
 	CFI_ENDPROC
 END(irq_entries_start)
 
-.previous
-END(interrupt)
-.previous
-
 /*
  * Interrupt entry/exit.
  *
@@ -656,47 +662,45 @@ END(interrupt)
 
 /* 0(%rsp): ~(interrupt number) */
 	.macro interrupt func
-	/* reserve pt_regs for scratch regs and rbp */
-	subq $ORIG_RAX-RBP, %rsp
-	CFI_ADJUST_CFA_OFFSET ORIG_RAX-RBP
 	cld
-	/* start from rbp in pt_regs and jump over */
-	movq_cfi rdi, (RDI-RBP)
-	movq_cfi rsi, (RSI-RBP)
-	movq_cfi rdx, (RDX-RBP)
-	movq_cfi rcx, (RCX-RBP)
-	movq_cfi rax, (RAX-RBP)
-	movq_cfi  r8,  (R8-RBP)
-	movq_cfi  r9,  (R9-RBP)
-	movq_cfi r10, (R10-RBP)
-	movq_cfi r11, (R11-RBP)
-
-	/* Save rbp so that we can unwind from get_irq_regs() */
-	movq_cfi rbp, 0
-
-	/* Save previous stack value */
-	movq %rsp, %rsi
+	/*
+	 * Since nothing in interrupt handling code touches r12...r15 members
+	 * of "struct pt_regs", and since interrupts can nest, we can save
+	 * four stack slots and simultaneously provide
+	 * an unwind-friendly stack layout by saving "truncated" pt_regs
+	 * exactly up to rbp slot, without these members.
+	 */
+	ALLOC_PT_GPREGS_ON_STACK -RBP
+	SAVE_C_REGS -RBP
+	/* this goes to 0(%rsp) for unwinder, not for saving the value: */
+	SAVE_EXTRA_REGS_RBP -RBP
+
+	leaq -RBP(%rsp),%rdi	/* arg1 for \func (pointer to pt_regs) */
 
-	leaq -RBP(%rsp),%rdi	/* arg1 for handler */
-	testl $3, CS-RBP(%rsi)
+	testl $3, CS-RBP(%rsp)
 	je 1f
 	SWAPGS
+1:
 	/*
+	 * Save previous stack pointer, optionally switch to interrupt stack.
 	 * irq_count is used to check if a CPU is already on an interrupt stack
 	 * or not. While this is essentially redundant with preempt_count it is
 	 * a little cheaper to use a separate counter in the PDA (short of
 	 * moving irq_enter into assembly, which would be too much work)
 	 */
-1:	incl PER_CPU_VAR(irq_count)
+	movq %rsp, %rsi
+	incl PER_CPU_VAR(irq_count)
 	cmovzq PER_CPU_VAR(irq_stack_ptr),%rsp
 	CFI_DEF_CFA_REGISTER	rsi
-
-	/* Store previous stack value */
 	pushq %rsi
+	/*
+	 * For debugger:
+	 * "CFA (Current Frame Address) is the value on stack + offset"
+	 */
 	CFI_ESCAPE	0x0f /* DW_CFA_def_cfa_expression */, 6, \
-			0x77 /* DW_OP_breg7 */, 0, \
+			0x77 /* DW_OP_breg7 (rsp) */, 0, \
 			0x06 /* DW_OP_deref */, \
-			0x08 /* DW_OP_const1u */, SS+8-RBP, \
+			0x08 /* DW_OP_const1u */, SIZEOF_PTREGS-RBP, \
 			0x22 /* DW_OP_plus */
 	/* We entered an interrupt context - irqs are off: */
 	TRACE_IRQS_OFF
@@ -714,7 +718,7 @@ common_interrupt:
 	ASM_CLAC
 	addq $-0x80,(%rsp)		/* Adjust vector to [-256,-1] range */
 	interrupt do_IRQ
-	/* 0(%rsp): old_rsp-ARGOFFSET */
+	/* 0(%rsp): old RSP */
 ret_from_intr:
 	DISABLE_INTERRUPTS(CLBR_NONE)
 	TRACE_IRQS_OFF
@@ -722,19 +726,18 @@ ret_from_intr:
 
 	/* Restore saved previous stack */
 	popq %rsi
-	CFI_DEF_CFA rsi,SS+8-RBP	/* reg/off reset after def_cfa_expr */
-	leaq ARGOFFSET-RBP(%rsi), %rsp
+	CFI_DEF_CFA rsi,SIZEOF_PTREGS-RBP /* reg/off reset after def_cfa_expr */
+	/* return code expects complete pt_regs - adjust rsp accordingly: */
+	leaq -RBP(%rsi),%rsp
 	CFI_DEF_CFA_REGISTER	rsp
-	CFI_ADJUST_CFA_OFFSET	RBP-ARGOFFSET
+	CFI_ADJUST_CFA_OFFSET	RBP
 
-exit_intr:
-	GET_THREAD_INFO(%rcx)
-	testl $3,CS-ARGOFFSET(%rsp)
+	testl $3,CS(%rsp)
 	je retint_kernel
-
 	/* Interrupt came from user space */
+
+	GET_THREAD_INFO(%rcx)
 	/*
-	 * Has a correct top of stack, but a partial stack frame
 	 * %rcx: thread info. Interrupts off.
 	 */
 retint_with_reschedule:
@@ -753,70 +756,34 @@ retint_swapgs:		/* return to user-space */
 	DISABLE_INTERRUPTS(CLBR_ANY)
 	TRACE_IRQS_IRETQ
 
-	/*
-	 * Try to use SYSRET instead of IRET if we're returning to
-	 * a completely clean 64-bit userspace context.
-	 */
-	movq (RCX-R11)(%rsp), %rcx
-	cmpq %rcx,(RIP-R11)(%rsp)		/* RCX == RIP */
-	jne opportunistic_sysret_failed
-
-	/*
-	 * On Intel CPUs, sysret with non-canonical RCX/RIP will #GP
-	 * in kernel space.  This essentially lets the user take over
-	 * the kernel, since userspace controls RSP.  It's not worth
-	 * testing for canonicalness exactly -- this check detects any
-	 * of the 17 high bits set, which is true for non-canonical
-	 * or kernel addresses.  (This will pessimize vsyscall=native.
-	 * Big deal.)
-	 *
-	 * If virtual addresses ever become wider, this will need
-	 * to be updated to remain correct on both old and new CPUs.
-	 */
-	.ifne __VIRTUAL_MASK_SHIFT - 47
-	.error "virtual address width changed -- sysret checks need update"
-	.endif
-	shr $__VIRTUAL_MASK_SHIFT, %rcx
-	jnz opportunistic_sysret_failed
-
-	cmpq $__USER_CS,(CS-R11)(%rsp)		/* CS must match SYSRET */
-	jne opportunistic_sysret_failed
-
-	movq (R11-ARGOFFSET)(%rsp), %r11
-	cmpq %r11,(EFLAGS-ARGOFFSET)(%rsp)	/* R11 == RFLAGS */
-	jne opportunistic_sysret_failed
-
-	testq $X86_EFLAGS_RF,%r11		/* sysret can't restore RF */
-	jnz opportunistic_sysret_failed
-
-	/* nothing to check for RSP */
-
-	cmpq $__USER_DS,(SS-ARGOFFSET)(%rsp)	/* SS must match SYSRET */
-	jne opportunistic_sysret_failed
-
-	/*
-	 * We win!  This label is here just for ease of understanding
-	 * perf profiles.  Nothing jumps here.
-	 */
-irq_return_via_sysret:
-	CFI_REMEMBER_STATE
-	RESTORE_ARGS 1,8,1
-	movq (RSP-RIP)(%rsp),%rsp
-	USERGS_SYSRET64
-	CFI_RESTORE_STATE
-
-opportunistic_sysret_failed:
 	SWAPGS
-	jmp restore_args
+	jmp	restore_c_regs_and_iret
 
-retint_restore_args:	/* return to kernel space */
-	DISABLE_INTERRUPTS(CLBR_ANY)
+/* Returning to kernel space */
+retint_kernel:
+#ifdef CONFIG_PREEMPT
+	/* Interrupts are off */
+	/* Check if we need preemption */
+	bt	$9,EFLAGS(%rsp)	/* interrupts were off? */
+	jnc	1f
+0:	cmpl	$0,PER_CPU_VAR(__preempt_count)
+	jnz	1f
+	call	preempt_schedule_irq
+	jmp	0b
+1:
+#endif
 	/*
 	 * The iretq could re-enable interrupts:
 	 */
 	TRACE_IRQS_IRETQ
-restore_args:
-	RESTORE_ARGS 1,8,1
+
+/*
+ * At this label, code paths which return to kernel and to user,
+ * which come from interrupts/exception and from syscalls, merge.
+ */
+restore_c_regs_and_iret:
+	RESTORE_C_REGS
+	REMOVE_PT_GPREGS_FROM_STACK 8
 
 irq_return:
 	INTERRUPT_RETURN
@@ -887,28 +854,17 @@ retint_signal:
 	jz    retint_swapgs
 	TRACE_IRQS_ON
 	ENABLE_INTERRUPTS(CLBR_NONE)
-	SAVE_REST
+	SAVE_EXTRA_REGS
 	movq $-1,ORIG_RAX(%rsp)
 	xorl %esi,%esi		# oldset
 	movq %rsp,%rdi		# &pt_regs
 	call do_notify_resume
-	RESTORE_REST
+	RESTORE_EXTRA_REGS
 	DISABLE_INTERRUPTS(CLBR_NONE)
 	TRACE_IRQS_OFF
 	GET_THREAD_INFO(%rcx)
 	jmp retint_with_reschedule
 
-#ifdef CONFIG_PREEMPT
-	/* Returning to kernel space. Check if we need preemption */
-	/* rcx:	 threadinfo. interrupts off. */
-ENTRY(retint_kernel)
-	cmpl $0,PER_CPU_VAR(__preempt_count)
-	jnz  retint_restore_args
-	bt   $9,EFLAGS-ARGOFFSET(%rsp)	/* interrupts off? */
-	jnc  retint_restore_args
-	call preempt_schedule_irq
-	jmp exit_intr
-#endif
 	CFI_ENDPROC
 END(common_interrupt)
 
@@ -997,7 +953,7 @@ apicinterrupt IRQ_WORK_VECTOR \
 /*
  * Exception entry points.
  */
-#define INIT_TSS_IST(x) PER_CPU_VAR(init_tss) + (TSS_ist + ((x) - 1) * 8)
+#define CPU_TSS_IST(x) PER_CPU_VAR(cpu_tss) + (TSS_ist + ((x) - 1) * 8)
 
 .macro idtentry sym do_sym has_error_code:req paranoid=0 shift_ist=-1
 ENTRY(\sym)
@@ -1019,8 +975,7 @@ ENTRY(\sym)
 	pushq_cfi $-1			/* ORIG_RAX: no syscall to restart */
 	.endif
 
-	subq $ORIG_RAX-R15, %rsp
-	CFI_ADJUST_CFA_OFFSET ORIG_RAX-R15
+	ALLOC_PT_GPREGS_ON_STACK
 
 	.if \paranoid
 	.if \paranoid == 1
@@ -1028,10 +983,11 @@ ENTRY(\sym)
 	testl $3, CS(%rsp)		/* If coming from userspace, switch */
 	jnz 1f				/* stacks. */
 	.endif
-	call save_paranoid
+	call paranoid_entry
 	.else
 	call error_entry
 	.endif
+	/* returned flag: ebx=0: need swapgs on exit, ebx=1: don't need it */
 
 	DEFAULT_FRAME 0
 
@@ -1053,19 +1009,20 @@ ENTRY(\sym)
 	.endif
 
 	.if \shift_ist != -1
-	subq $EXCEPTION_STKSZ, INIT_TSS_IST(\shift_ist)
+	subq $EXCEPTION_STKSZ, CPU_TSS_IST(\shift_ist)
 	.endif
 
 	call \do_sym
 
 	.if \shift_ist != -1
-	addq $EXCEPTION_STKSZ, INIT_TSS_IST(\shift_ist)
+	addq $EXCEPTION_STKSZ, CPU_TSS_IST(\shift_ist)
 	.endif
 
+	/* these procedures expect "no swapgs" flag in ebx */
 	.if \paranoid
-	jmp paranoid_exit		/* %ebx: no swapgs flag */
+	jmp paranoid_exit
 	.else
-	jmp error_exit			/* %ebx: no swapgs flag */
+	jmp error_exit
 	.endif
 
 	.if \paranoid == 1
@@ -1208,6 +1165,9 @@ ENTRY(xen_do_hypervisor_callback)   # do_hypervisor_callback(struct *pt_regs)
 	popq %rsp
 	CFI_DEF_CFA_REGISTER rsp
 	decl PER_CPU_VAR(irq_count)
+#ifndef CONFIG_PREEMPT
+	call xen_maybe_preempt_hcall
+#endif
 	jmp  error_exit
 	CFI_ENDPROC
 END(xen_do_hypervisor_callback)
@@ -1266,7 +1226,9 @@ ENTRY(xen_failsafe_callback)
 	addq $0x30,%rsp
 	CFI_ADJUST_CFA_OFFSET -0x30
 	pushq_cfi $-1 /* orig_ax = -1 => not a system call */
-	SAVE_ALL
+	ALLOC_PT_GPREGS_ON_STACK
+	SAVE_C_REGS
+	SAVE_EXTRA_REGS
 	jmp error_exit
 	CFI_ENDPROC
 END(xen_failsafe_callback)
@@ -1298,59 +1260,66 @@ idtentry async_page_fault do_async_page_fault has_error_code=1
 idtentry machine_check has_error_code=0 paranoid=1 do_sym=*machine_check_vector(%rip)
 #endif
 
-	/*
-	 * "Paranoid" exit path from exception stack.  This is invoked
-	 * only on return from non-NMI IST interrupts that came
-	 * from kernel space.
-	 *
-	 * We may be returning to very strange contexts (e.g. very early
-	 * in syscall entry), so checking for preemption here would
-	 * be complicated.  Fortunately, we there's no good reason
-	 * to try to handle preemption here.
-	 */
+/*
+ * Save all registers in pt_regs, and switch gs if needed.
+ * Use slow, but surefire "are we in kernel?" check.
+ * Return: ebx=0: need swapgs on exit, ebx=1: otherwise
+ */
+ENTRY(paranoid_entry)
+	XCPT_FRAME 1 15*8
+	cld
+	SAVE_C_REGS 8
+	SAVE_EXTRA_REGS 8
+	movl $1,%ebx
+	movl $MSR_GS_BASE,%ecx
+	rdmsr
+	testl %edx,%edx
+	js 1f	/* negative -> in kernel */
+	SWAPGS
+	xorl %ebx,%ebx
+1:	ret
+	CFI_ENDPROC
+END(paranoid_entry)
 
-	/* ebx:	no swapgs flag */
+/*
+ * "Paranoid" exit path from exception stack.  This is invoked
+ * only on return from non-NMI IST interrupts that came
+ * from kernel space.
+ *
+ * We may be returning to very strange contexts (e.g. very early
+ * in syscall entry), so checking for preemption here would
+ * be complicated.  Fortunately, we there's no good reason
+ * to try to handle preemption here.
+ */
+/* On entry, ebx is "no swapgs" flag (1: don't need swapgs, 0: need it) */
 ENTRY(paranoid_exit)
 	DEFAULT_FRAME
 	DISABLE_INTERRUPTS(CLBR_NONE)
 	TRACE_IRQS_OFF_DEBUG
 	testl %ebx,%ebx				/* swapgs needed? */
-	jnz paranoid_restore
-	TRACE_IRQS_IRETQ 0
+	jnz paranoid_exit_no_swapgs
+	TRACE_IRQS_IRETQ
 	SWAPGS_UNSAFE_STACK
-	RESTORE_ALL 8
-	INTERRUPT_RETURN
-paranoid_restore:
-	TRACE_IRQS_IRETQ_DEBUG 0
-	RESTORE_ALL 8
+	jmp paranoid_exit_restore
+paranoid_exit_no_swapgs:
+	TRACE_IRQS_IRETQ_DEBUG
+paranoid_exit_restore:
+	RESTORE_EXTRA_REGS
+	RESTORE_C_REGS
+	REMOVE_PT_GPREGS_FROM_STACK 8
 	INTERRUPT_RETURN
 	CFI_ENDPROC
 END(paranoid_exit)
 
 /*
- * Exception entry point. This expects an error code/orig_rax on the stack.
- * returns in "no swapgs flag" in %ebx.
+ * Save all registers in pt_regs, and switch gs if needed.
+ * Return: ebx=0: need swapgs on exit, ebx=1: otherwise
  */
 ENTRY(error_entry)
-	XCPT_FRAME
-	CFI_ADJUST_CFA_OFFSET 15*8
-	/* oldrax contains error code */
+	XCPT_FRAME 1 15*8
 	cld
-	movq %rdi, RDI+8(%rsp)
-	movq %rsi, RSI+8(%rsp)
-	movq %rdx, RDX+8(%rsp)
-	movq %rcx, RCX+8(%rsp)
-	movq %rax, RAX+8(%rsp)
-	movq  %r8,  R8+8(%rsp)
-	movq  %r9,  R9+8(%rsp)
-	movq %r10, R10+8(%rsp)
-	movq %r11, R11+8(%rsp)
-	movq_cfi rbx, RBX+8
-	movq %rbp, RBP+8(%rsp)
-	movq %r12, R12+8(%rsp)
-	movq %r13, R13+8(%rsp)
-	movq %r14, R14+8(%rsp)
-	movq %r15, R15+8(%rsp)
+	SAVE_C_REGS 8
+	SAVE_EXTRA_REGS 8
 	xorl %ebx,%ebx
 	testl $3,CS+8(%rsp)
 	je error_kernelspace
@@ -1360,12 +1329,12 @@ error_sti:
 	TRACE_IRQS_OFF
 	ret
 
-/*
- * There are two places in the kernel that can potentially fault with
- * usergs. Handle them here.  B stepping K8s sometimes report a
- * truncated RIP for IRET exceptions returning to compat mode. Check
- * for these here too.
- */
+	/*
+	 * There are two places in the kernel that can potentially fault with
+	 * usergs. Handle them here.  B stepping K8s sometimes report a
+	 * truncated RIP for IRET exceptions returning to compat mode. Check
+	 * for these here too.
+	 */
 error_kernelspace:
 	CFI_REL_OFFSET rcx, RCX+8
 	incl %ebx
@@ -1395,11 +1364,11 @@ error_bad_iret:
 END(error_entry)
 
 
-/* ebx:	no swapgs flag (1: don't need swapgs, 0: need it) */
+/* On entry, ebx is "no swapgs" flag (1: don't need swapgs, 0: need it) */
 ENTRY(error_exit)
 	DEFAULT_FRAME
 	movl %ebx,%eax
-	RESTORE_REST
+	RESTORE_EXTRA_REGS
 	DISABLE_INTERRUPTS(CLBR_NONE)
 	TRACE_IRQS_OFF
 	GET_THREAD_INFO(%rcx)
@@ -1414,19 +1383,7 @@ ENTRY(error_exit)
 	CFI_ENDPROC
 END(error_exit)
 
-/*
- * Test if a given stack is an NMI stack or not.
- */
-	.macro test_in_nmi reg stack nmi_ret normal_ret
-	cmpq %\reg, \stack
-	ja \normal_ret
-	subq $EXCEPTION_STKSZ, %\reg
-	cmpq %\reg, \stack
-	jb \normal_ret
-	jmp \nmi_ret
-	.endm
-
-	/* runs on exception stack */
+/* Runs on exception stack */
 ENTRY(nmi)
 	INTR_FRAME
 	PARAVIRT_ADJUST_EXCEPTION_FRAME
@@ -1462,7 +1419,7 @@ ENTRY(nmi)
 	 * NMI.
 	 */
 
-	/* Use %rdx as out temp variable throughout */
+	/* Use %rdx as our temp variable throughout */
 	pushq_cfi %rdx
 	CFI_REL_OFFSET rdx, 0
 
@@ -1487,8 +1444,17 @@ ENTRY(nmi)
 	 * We check the variable because the first NMI could be in a
 	 * breakpoint routine using a breakpoint stack.
 	 */
-	lea 6*8(%rsp), %rdx
-	test_in_nmi rdx, 4*8(%rsp), nested_nmi, first_nmi
+	lea	6*8(%rsp), %rdx
+	/* Compare the NMI stack (rdx) with the stack we came from (4*8(%rsp)) */
+	cmpq	%rdx, 4*8(%rsp)
+	/* If the stack pointer is above the NMI stack, this is a normal NMI */
+	ja	first_nmi
+	subq	$EXCEPTION_STKSZ, %rdx
+	cmpq	%rdx, 4*8(%rsp)
+	/* If it is below the NMI stack, it is a normal NMI */
+	jb	first_nmi
+	/* Ah, it is within the NMI stack, treat it as nested */
+
 	CFI_REMEMBER_STATE
 
 nested_nmi:
@@ -1581,7 +1547,7 @@ first_nmi:
 	.rept 5
 	pushq_cfi 11*8(%rsp)
 	.endr
-	CFI_DEF_CFA_OFFSET SS+8-RIP
+	CFI_DEF_CFA_OFFSET 5*8
 
 	/* Everything up to here is safe from nested NMIs */
 
@@ -1609,7 +1575,7 @@ repeat_nmi:
 	pushq_cfi -6*8(%rsp)
 	.endr
 	subq $(5*8), %rsp
-	CFI_DEF_CFA_OFFSET SS+8-RIP
+	CFI_DEF_CFA_OFFSET 5*8
 end_repeat_nmi:
 
 	/*
@@ -1618,16 +1584,16 @@ end_repeat_nmi:
 	 * so that we repeat another NMI.
 	 */
 	pushq_cfi $-1		/* ORIG_RAX: no syscall to restart */
-	subq $ORIG_RAX-R15, %rsp
-	CFI_ADJUST_CFA_OFFSET ORIG_RAX-R15
+	ALLOC_PT_GPREGS_ON_STACK
+
 	/*
-	 * Use save_paranoid to handle SWAPGS, but no need to use paranoid_exit
+	 * Use paranoid_entry to handle SWAPGS, but no need to use paranoid_exit
 	 * as we should not be calling schedule in NMI context.
 	 * Even with normal interrupts enabled. An NMI should not be
 	 * setting NEED_RESCHED or anything that normal interrupts and
 	 * exceptions might do.
 	 */
-	call save_paranoid
+	call paranoid_entry
 	DEFAULT_FRAME 0
 
 	/*
@@ -1658,8 +1624,10 @@ end_repeat_nmi:
 nmi_swapgs:
 	SWAPGS_UNSAFE_STACK
 nmi_restore:
+	RESTORE_EXTRA_REGS
+	RESTORE_C_REGS
 	/* Pop the extra iret frame at once */
-	RESTORE_ALL 6*8
+	REMOVE_PT_GPREGS_FROM_STACK 6*8
 
 	/* Clear the NMI executing stack variable */
 	movq $0, 5*8(%rsp)
diff --git a/arch/x86/kernel/head64.c b/arch/x86/kernel/head64.c
index c4f8d46..2b55ee6 100644
--- a/arch/x86/kernel/head64.c
+++ b/arch/x86/kernel/head64.c
@@ -177,9 +177,6 @@ asmlinkage __visible void __init x86_64_start_kernel(char * real_mode_data)
 	 */
 	load_ucode_bsp();
 
-	if (console_loglevel >= CONSOLE_LOGLEVEL_DEBUG)
-		early_printk("Kernel alive\n");
-
 	clear_page(init_level4_pgt);
 	/* set init_level4_pgt kernel high mapping*/
 	init_level4_pgt[511] = early_level4_pgt[511];
diff --git a/arch/x86/kernel/head_32.S b/arch/x86/kernel/head_32.S
index f36bd42..d031bad 100644
--- a/arch/x86/kernel/head_32.S
+++ b/arch/x86/kernel/head_32.S
@@ -22,6 +22,7 @@
 #include <asm/cpufeature.h>
 #include <asm/percpu.h>
 #include <asm/nops.h>
+#include <asm/bootparam.h>
 
 /* Physical address */
 #define pa(X) ((X) - __PAGE_OFFSET)
@@ -90,7 +91,7 @@ ENTRY(startup_32)
 	
 	/* test KEEP_SEGMENTS flag to see if the bootloader is asking
 		us to not reload segments */
-	testb $(1<<6), BP_loadflags(%esi)
+	testb $KEEP_SEGMENTS, BP_loadflags(%esi)
 	jnz 2f
 
 /*
diff --git a/arch/x86/kernel/head_64.S b/arch/x86/kernel/head_64.S
index 6fd514d9..ae6588b 100644
--- a/arch/x86/kernel/head_64.S
+++ b/arch/x86/kernel/head_64.S
@@ -1,5 +1,5 @@
 /*
- *  linux/arch/x86_64/kernel/head.S -- start in 32bit and switch to 64bit
+ *  linux/arch/x86/kernel/head_64.S -- start in 32bit and switch to 64bit
  *
  *  Copyright (C) 2000 Andrea Arcangeli <andrea@suse.de> SuSE
  *  Copyright (C) 2000 Pavel Machek <pavel@suse.cz>
@@ -56,7 +56,7 @@ startup_64:
 	 * %rsi holds a physical pointer to real_mode_data.
 	 *
 	 * We come here either directly from a 64bit bootloader, or from
-	 * arch/x86_64/boot/compressed/head.S.
+	 * arch/x86/boot/compressed/head_64.S.
 	 *
 	 * We only come here initially at boot nothing else comes here.
 	 *
@@ -146,7 +146,7 @@ startup_64:
 	leaq	level2_kernel_pgt(%rip), %rdi
 	leaq	4096(%rdi), %r8
 	/* See if it is a valid page table entry */
-1:	testq	$1, 0(%rdi)
+1:	testb	$1, 0(%rdi)
 	jz	2f
 	addq	%rbp, 0(%rdi)
 	/* Go to the next page */
diff --git a/arch/x86/kernel/i387.c b/arch/x86/kernel/i387.c
index d5651fc..367f39d 100644
--- a/arch/x86/kernel/i387.c
+++ b/arch/x86/kernel/i387.c
@@ -42,8 +42,8 @@ void kernel_fpu_enable(void)
  * be set (so that the clts/stts pair does nothing that is
  * visible in the interrupted kernel thread).
  *
- * Except for the eagerfpu case when we return 1 unless we've already
- * been eager and saved the state in kernel_fpu_begin().
+ * Except for the eagerfpu case when we return true; in the likely case
+ * the thread has FPU but we are not going to set/clear TS.
  */
 static inline bool interrupted_kernel_fpu_idle(void)
 {
@@ -51,7 +51,7 @@ static inline bool interrupted_kernel_fpu_idle(void)
 		return false;
 
 	if (use_eager_fpu())
-		return __thread_has_fpu(current);
+		return true;
 
 	return !__thread_has_fpu(current) &&
 		(read_cr0() & X86_CR0_TS);
@@ -68,7 +68,7 @@ static inline bool interrupted_kernel_fpu_idle(void)
 static inline bool interrupted_user_mode(void)
 {
 	struct pt_regs *regs = get_irq_regs();
-	return regs && user_mode_vm(regs);
+	return regs && user_mode(regs);
 }
 
 /*
@@ -94,9 +94,10 @@ void __kernel_fpu_begin(void)
 
 	if (__thread_has_fpu(me)) {
 		__save_init_fpu(me);
-	} else if (!use_eager_fpu()) {
+	} else {
 		this_cpu_write(fpu_owner_task, NULL);
-		clts();
+		if (!use_eager_fpu())
+			clts();
 	}
 }
 EXPORT_SYMBOL(__kernel_fpu_begin);
@@ -107,7 +108,7 @@ void __kernel_fpu_end(void)
 
 	if (__thread_has_fpu(me)) {
 		if (WARN_ON(restore_fpu_checking(me)))
-			drop_init_fpu(me);
+			fpu_reset_state(me);
 	} else if (!use_eager_fpu()) {
 		stts();
 	}
@@ -120,10 +121,13 @@ void unlazy_fpu(struct task_struct *tsk)
 {
 	preempt_disable();
 	if (__thread_has_fpu(tsk)) {
-		__save_init_fpu(tsk);
-		__thread_fpu_end(tsk);
-	} else
-		tsk->thread.fpu_counter = 0;
+		if (use_eager_fpu()) {
+			__save_fpu(tsk);
+		} else {
+			__save_init_fpu(tsk);
+			__thread_fpu_end(tsk);
+		}
+	}
 	preempt_enable();
 }
 EXPORT_SYMBOL(unlazy_fpu);
@@ -221,11 +225,12 @@ void fpu_finit(struct fpu *fpu)
 		return;
 	}
 
+	memset(fpu->state, 0, xstate_size);
+
 	if (cpu_has_fxsr) {
 		fx_finit(&fpu->state->fxsave);
 	} else {
 		struct i387_fsave_struct *fp = &fpu->state->fsave;
-		memset(fp, 0, xstate_size);
 		fp->cwd = 0xffff037fu;
 		fp->swd = 0xffff0000u;
 		fp->twd = 0xffffffffu;
@@ -247,7 +252,7 @@ int init_fpu(struct task_struct *tsk)
 	if (tsk_used_math(tsk)) {
 		if (cpu_has_fpu && tsk == current)
 			unlazy_fpu(tsk);
-		tsk->thread.fpu.last_cpu = ~0;
+		task_disable_lazy_fpu_restore(tsk);
 		return 0;
 	}
 
@@ -336,6 +341,7 @@ int xstateregs_get(struct task_struct *target, const struct user_regset *regset,
 		unsigned int pos, unsigned int count,
 		void *kbuf, void __user *ubuf)
 {
+	struct xsave_struct *xsave = &target->thread.fpu.state->xsave;
 	int ret;
 
 	if (!cpu_has_xsave)
@@ -350,14 +356,12 @@ int xstateregs_get(struct task_struct *target, const struct user_regset *regset,
 	 * memory layout in the thread struct, so that we can copy the entire
 	 * xstateregs to the user using one user_regset_copyout().
 	 */
-	memcpy(&target->thread.fpu.state->fxsave.sw_reserved,
-	       xstate_fx_sw_bytes, sizeof(xstate_fx_sw_bytes));
-
+	memcpy(&xsave->i387.sw_reserved,
+		xstate_fx_sw_bytes, sizeof(xstate_fx_sw_bytes));
 	/*
 	 * Copy the xstate memory layout.
 	 */
-	ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf,
-				  &target->thread.fpu.state->xsave, 0, -1);
+	ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf, xsave, 0, -1);
 	return ret;
 }
 
@@ -365,8 +369,8 @@ int xstateregs_set(struct task_struct *target, const struct user_regset *regset,
 		  unsigned int pos, unsigned int count,
 		  const void *kbuf, const void __user *ubuf)
 {
+	struct xsave_struct *xsave = &target->thread.fpu.state->xsave;
 	int ret;
-	struct xsave_hdr_struct *xsave_hdr;
 
 	if (!cpu_has_xsave)
 		return -ENODEV;
@@ -375,22 +379,16 @@ int xstateregs_set(struct task_struct *target, const struct user_regset *regset,
 	if (ret)
 		return ret;
 
-	ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
-				 &target->thread.fpu.state->xsave, 0, -1);
-
+	ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, xsave, 0, -1);
 	/*
 	 * mxcsr reserved bits must be masked to zero for security reasons.
 	 */
-	target->thread.fpu.state->fxsave.mxcsr &= mxcsr_feature_mask;
-
-	xsave_hdr = &target->thread.fpu.state->xsave.xsave_hdr;
-
-	xsave_hdr->xstate_bv &= pcntxt_mask;
+	xsave->i387.mxcsr &= mxcsr_feature_mask;
+	xsave->xsave_hdr.xstate_bv &= pcntxt_mask;
 	/*
 	 * These bits must be zero.
 	 */
-	memset(xsave_hdr->reserved, 0, 48);
-
+	memset(&xsave->xsave_hdr.reserved, 0, 48);
 	return ret;
 }
 
diff --git a/arch/x86/kernel/ioport.c b/arch/x86/kernel/ioport.c
index 4ddaf66..37dae79 100644
--- a/arch/x86/kernel/ioport.c
+++ b/arch/x86/kernel/ioport.c
@@ -54,7 +54,7 @@ asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int turn_on)
 	 * because the ->io_bitmap_max value must match the bitmap
 	 * contents:
 	 */
-	tss = &per_cpu(init_tss, get_cpu());
+	tss = &per_cpu(cpu_tss, get_cpu());
 
 	if (turn_on)
 		bitmap_clear(t->io_bitmap_ptr, from, num);
diff --git a/arch/x86/kernel/irq.c b/arch/x86/kernel/irq.c
index 67b1cbe..e5952c2 100644
--- a/arch/x86/kernel/irq.c
+++ b/arch/x86/kernel/irq.c
@@ -295,7 +295,7 @@ int check_irq_vectors_for_cpu_disable(void)
 
 	this_cpu = smp_processor_id();
 	cpumask_copy(&online_new, cpu_online_mask);
-	cpu_clear(this_cpu, online_new);
+	cpumask_clear_cpu(this_cpu, &online_new);
 
 	this_count = 0;
 	for (vector = FIRST_EXTERNAL_VECTOR; vector < NR_VECTORS; vector++) {
@@ -307,7 +307,7 @@ int check_irq_vectors_for_cpu_disable(void)
 
 			data = irq_desc_get_irq_data(desc);
 			cpumask_copy(&affinity_new, data->affinity);
-			cpu_clear(this_cpu, affinity_new);
+			cpumask_clear_cpu(this_cpu, &affinity_new);
 
 			/* Do not count inactive or per-cpu irqs. */
 			if (!irq_has_action(irq) || irqd_is_per_cpu(data))
diff --git a/arch/x86/kernel/irq_32.c b/arch/x86/kernel/irq_32.c
index 28d28f5..f9fd86a 100644
--- a/arch/x86/kernel/irq_32.c
+++ b/arch/x86/kernel/irq_32.c
@@ -165,7 +165,7 @@ bool handle_irq(unsigned irq, struct pt_regs *regs)
 	if (unlikely(!desc))
 		return false;
 
-	if (user_mode_vm(regs) || !execute_on_irq_stack(overflow, desc, irq)) {
+	if (user_mode(regs) || !execute_on_irq_stack(overflow, desc, irq)) {
 		if (unlikely(overflow))
 			print_stack_overflow();
 		desc->handle_irq(irq, desc);
diff --git a/arch/x86/kernel/irq_64.c b/arch/x86/kernel/irq_64.c
index e4b503d..394e643 100644
--- a/arch/x86/kernel/irq_64.c
+++ b/arch/x86/kernel/irq_64.c
@@ -44,7 +44,7 @@ static inline void stack_overflow_check(struct pt_regs *regs)
 	u64 estack_top, estack_bottom;
 	u64 curbase = (u64)task_stack_page(current);
 
-	if (user_mode_vm(regs))
+	if (user_mode(regs))
 		return;
 
 	if (regs->sp >= curbase + sizeof(struct thread_info) +
diff --git a/arch/x86/kernel/irqinit.c b/arch/x86/kernel/irqinit.c
index 70e181e..cd10a64 100644
--- a/arch/x86/kernel/irqinit.c
+++ b/arch/x86/kernel/irqinit.c
@@ -178,7 +178,8 @@ void __init native_init_IRQ(void)
 #endif
 	for_each_clear_bit_from(i, used_vectors, first_system_vector) {
 		/* IA32_SYSCALL_VECTOR could be used in trap_init already. */
-		set_intr_gate(i, interrupt[i - FIRST_EXTERNAL_VECTOR]);
+		set_intr_gate(i, irq_entries_start +
+				8 * (i - FIRST_EXTERNAL_VECTOR));
 	}
 #ifdef CONFIG_X86_LOCAL_APIC
 	for_each_clear_bit_from(i, used_vectors, NR_VECTORS)
diff --git a/arch/x86/kernel/kgdb.c b/arch/x86/kernel/kgdb.c
index 7ec1d5f..d6178d9 100644
--- a/arch/x86/kernel/kgdb.c
+++ b/arch/x86/kernel/kgdb.c
@@ -72,7 +72,7 @@ struct dbg_reg_def_t dbg_reg_def[DBG_MAX_REG_NUM] =
 	{ "bx", 8, offsetof(struct pt_regs, bx) },
 	{ "cx", 8, offsetof(struct pt_regs, cx) },
 	{ "dx", 8, offsetof(struct pt_regs, dx) },
-	{ "si", 8, offsetof(struct pt_regs, dx) },
+	{ "si", 8, offsetof(struct pt_regs, si) },
 	{ "di", 8, offsetof(struct pt_regs, di) },
 	{ "bp", 8, offsetof(struct pt_regs, bp) },
 	{ "sp", 8, offsetof(struct pt_regs, sp) },
@@ -126,11 +126,11 @@ char *dbg_get_reg(int regno, void *mem, struct pt_regs *regs)
 #ifdef CONFIG_X86_32
 	switch (regno) {
 	case GDB_SS:
-		if (!user_mode_vm(regs))
+		if (!user_mode(regs))
 			*(unsigned long *)mem = __KERNEL_DS;
 		break;
 	case GDB_SP:
-		if (!user_mode_vm(regs))
+		if (!user_mode(regs))
 			*(unsigned long *)mem = kernel_stack_pointer(regs);
 		break;
 	case GDB_GS:
diff --git a/arch/x86/kernel/kprobes/core.c b/arch/x86/kernel/kprobes/core.c
index 6a1146e..24d0796 100644
--- a/arch/x86/kernel/kprobes/core.c
+++ b/arch/x86/kernel/kprobes/core.c
@@ -223,27 +223,48 @@ static unsigned long
 __recover_probed_insn(kprobe_opcode_t *buf, unsigned long addr)
 {
 	struct kprobe *kp;
+	unsigned long faddr;
 
 	kp = get_kprobe((void *)addr);
-	/* There is no probe, return original address */
-	if (!kp)
+	faddr = ftrace_location(addr);
+	/*
+	 * Addresses inside the ftrace location are refused by
+	 * arch_check_ftrace_location(). Something went terribly wrong
+	 * if such an address is checked here.
+	 */
+	if (WARN_ON(faddr && faddr != addr))
+		return 0UL;
+	/*
+	 * Use the current code if it is not modified by Kprobe
+	 * and it cannot be modified by ftrace.
+	 */
+	if (!kp && !faddr)
 		return addr;
 
 	/*
-	 *  Basically, kp->ainsn.insn has an original instruction.
-	 *  However, RIP-relative instruction can not do single-stepping
-	 *  at different place, __copy_instruction() tweaks the displacement of
-	 *  that instruction. In that case, we can't recover the instruction
-	 *  from the kp->ainsn.insn.
+	 * Basically, kp->ainsn.insn has an original instruction.
+	 * However, RIP-relative instruction can not do single-stepping
+	 * at different place, __copy_instruction() tweaks the displacement of
+	 * that instruction. In that case, we can't recover the instruction
+	 * from the kp->ainsn.insn.
 	 *
-	 *  On the other hand, kp->opcode has a copy of the first byte of
-	 *  the probed instruction, which is overwritten by int3. And
-	 *  the instruction at kp->addr is not modified by kprobes except
-	 *  for the first byte, we can recover the original instruction
-	 *  from it and kp->opcode.
+	 * On the other hand, in case on normal Kprobe, kp->opcode has a copy
+	 * of the first byte of the probed instruction, which is overwritten
+	 * by int3. And the instruction at kp->addr is not modified by kprobes
+	 * except for the first byte, we can recover the original instruction
+	 * from it and kp->opcode.
+	 *
+	 * In case of Kprobes using ftrace, we do not have a copy of
+	 * the original instruction. In fact, the ftrace location might
+	 * be modified at anytime and even could be in an inconsistent state.
+	 * Fortunately, we know that the original code is the ideal 5-byte
+	 * long NOP.
 	 */
-	memcpy(buf, kp->addr, MAX_INSN_SIZE * sizeof(kprobe_opcode_t));
-	buf[0] = kp->opcode;
+	memcpy(buf, (void *)addr, MAX_INSN_SIZE * sizeof(kprobe_opcode_t));
+	if (faddr)
+		memcpy(buf, ideal_nops[NOP_ATOMIC5], 5);
+	else
+		buf[0] = kp->opcode;
 	return (unsigned long)buf;
 }
 
@@ -251,6 +272,7 @@ __recover_probed_insn(kprobe_opcode_t *buf, unsigned long addr)
  * Recover the probed instruction at addr for further analysis.
  * Caller must lock kprobes by kprobe_mutex, or disable preemption
  * for preventing to release referencing kprobes.
+ * Returns zero if the instruction can not get recovered.
  */
 unsigned long recover_probed_instruction(kprobe_opcode_t *buf, unsigned long addr)
 {
@@ -285,6 +307,8 @@ static int can_probe(unsigned long paddr)
 		 * normally used, we just go through if there is no kprobe.
 		 */
 		__addr = recover_probed_instruction(buf, addr);
+		if (!__addr)
+			return 0;
 		kernel_insn_init(&insn, (void *)__addr, MAX_INSN_SIZE);
 		insn_get_length(&insn);
 
@@ -333,6 +357,8 @@ int __copy_instruction(u8 *dest, u8 *src)
 	unsigned long recovered_insn =
 		recover_probed_instruction(buf, (unsigned long)src);
 
+	if (!recovered_insn)
+		return 0;
 	kernel_insn_init(&insn, (void *)recovered_insn, MAX_INSN_SIZE);
 	insn_get_length(&insn);
 	/* Another subsystem puts a breakpoint, failed to recover */
@@ -576,7 +602,7 @@ int kprobe_int3_handler(struct pt_regs *regs)
 	struct kprobe *p;
 	struct kprobe_ctlblk *kcb;
 
-	if (user_mode_vm(regs))
+	if (user_mode(regs))
 		return 0;
 
 	addr = (kprobe_opcode_t *)(regs->ip - sizeof(kprobe_opcode_t));
@@ -981,7 +1007,7 @@ int kprobe_exceptions_notify(struct notifier_block *self, unsigned long val,
 	struct die_args *args = data;
 	int ret = NOTIFY_DONE;
 
-	if (args->regs && user_mode_vm(args->regs))
+	if (args->regs && user_mode(args->regs))
 		return ret;
 
 	if (val == DIE_GPF) {
diff --git a/arch/x86/kernel/kprobes/opt.c b/arch/x86/kernel/kprobes/opt.c
index 0dd8d08..7b3b9d1 100644
--- a/arch/x86/kernel/kprobes/opt.c
+++ b/arch/x86/kernel/kprobes/opt.c
@@ -259,6 +259,8 @@ static int can_optimize(unsigned long paddr)
 			 */
 			return 0;
 		recovered_insn = recover_probed_instruction(buf, addr);
+		if (!recovered_insn)
+			return 0;
 		kernel_insn_init(&insn, (void *)recovered_insn, MAX_INSN_SIZE);
 		insn_get_length(&insn);
 		/* Another subsystem puts a breakpoint */
diff --git a/arch/x86/kernel/module.c b/arch/x86/kernel/module.c
index 9bbb9b3..005c03e 100644
--- a/arch/x86/kernel/module.c
+++ b/arch/x86/kernel/module.c
@@ -33,6 +33,7 @@
 
 #include <asm/page.h>
 #include <asm/pgtable.h>
+#include <asm/setup.h>
 
 #if 0
 #define DEBUGP(fmt, ...)				\
@@ -53,7 +54,7 @@ static DEFINE_MUTEX(module_kaslr_mutex);
 
 static unsigned long int get_module_load_offset(void)
 {
-	if (kaslr_enabled) {
+	if (kaslr_enabled()) {
 		mutex_lock(&module_kaslr_mutex);
 		/*
 		 * Calculate the module_load_offset the first time this
diff --git a/arch/x86/kernel/perf_regs.c b/arch/x86/kernel/perf_regs.c
index 781861c..da8cb98 100644
--- a/arch/x86/kernel/perf_regs.c
+++ b/arch/x86/kernel/perf_regs.c
@@ -131,10 +131,11 @@ void perf_get_regs_user(struct perf_regs *regs_user,
 	}
 
 	/*
-	 * RIP, flags, and the argument registers are usually saved.
-	 * orig_ax is probably okay, too.
+	 * These registers are always saved on 64-bit syscall entry.
+	 * On 32-bit entry points, they are saved too except r8..r11.
 	 */
 	regs_user_copy->ip = user_regs->ip;
+	regs_user_copy->ax = user_regs->ax;
 	regs_user_copy->cx = user_regs->cx;
 	regs_user_copy->dx = user_regs->dx;
 	regs_user_copy->si = user_regs->si;
@@ -145,9 +146,12 @@ void perf_get_regs_user(struct perf_regs *regs_user,
 	regs_user_copy->r11 = user_regs->r11;
 	regs_user_copy->orig_ax = user_regs->orig_ax;
 	regs_user_copy->flags = user_regs->flags;
+	regs_user_copy->sp = user_regs->sp;
+	regs_user_copy->cs = user_regs->cs;
+	regs_user_copy->ss = user_regs->ss;
 
 	/*
-	 * Don't even try to report the "rest" regs.
+	 * Most system calls don't save these registers, don't report them.
 	 */
 	regs_user_copy->bx = -1;
 	regs_user_copy->bp = -1;
@@ -158,37 +162,13 @@ void perf_get_regs_user(struct perf_regs *regs_user,
 
 	/*
 	 * For this to be at all useful, we need a reasonable guess for
-	 * sp and the ABI.  Be careful: we're in NMI context, and we're
+	 * the ABI.  Be careful: we're in NMI context, and we're
 	 * considering current to be the current task, so we should
 	 * be careful not to look at any other percpu variables that might
 	 * change during context switches.
 	 */
-	if (IS_ENABLED(CONFIG_IA32_EMULATION) &&
-	    task_thread_info(current)->status & TS_COMPAT) {
-		/* Easy case: we're in a compat syscall. */
-		regs_user->abi = PERF_SAMPLE_REGS_ABI_32;
-		regs_user_copy->sp = user_regs->sp;
-		regs_user_copy->cs = user_regs->cs;
-		regs_user_copy->ss = user_regs->ss;
-	} else if (user_regs->orig_ax != -1) {
-		/*
-		 * We're probably in a 64-bit syscall.
-		 * Warning: this code is severely racy.  At least it's better
-		 * than just blindly copying user_regs.
-		 */
-		regs_user->abi = PERF_SAMPLE_REGS_ABI_64;
-		regs_user_copy->sp = this_cpu_read(old_rsp);
-		regs_user_copy->cs = __USER_CS;
-		regs_user_copy->ss = __USER_DS;
-		regs_user_copy->cx = -1;  /* usually contains garbage */
-	} else {
-		/* We're probably in an interrupt or exception. */
-		regs_user->abi = user_64bit_mode(user_regs) ?
-			PERF_SAMPLE_REGS_ABI_64 : PERF_SAMPLE_REGS_ABI_32;
-		regs_user_copy->sp = user_regs->sp;
-		regs_user_copy->cs = user_regs->cs;
-		regs_user_copy->ss = user_regs->ss;
-	}
+	regs_user->abi = user_64bit_mode(user_regs) ?
+		PERF_SAMPLE_REGS_ABI_64 : PERF_SAMPLE_REGS_ABI_32;
 
 	regs_user->regs = regs_user_copy;
 }
diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c
index 046e2d6..8213da6 100644
--- a/arch/x86/kernel/process.c
+++ b/arch/x86/kernel/process.c
@@ -9,7 +9,7 @@
 #include <linux/sched.h>
 #include <linux/module.h>
 #include <linux/pm.h>
-#include <linux/clockchips.h>
+#include <linux/tick.h>
 #include <linux/random.h>
 #include <linux/user-return-notifier.h>
 #include <linux/dmi.h>
@@ -24,6 +24,7 @@
 #include <asm/syscalls.h>
 #include <asm/idle.h>
 #include <asm/uaccess.h>
+#include <asm/mwait.h>
 #include <asm/i387.h>
 #include <asm/fpu-internal.h>
 #include <asm/debugreg.h>
@@ -37,7 +38,26 @@
  * section. Since TSS's are completely CPU-local, we want them
  * on exact cacheline boundaries, to eliminate cacheline ping-pong.
  */
-__visible DEFINE_PER_CPU_SHARED_ALIGNED(struct tss_struct, init_tss) = INIT_TSS;
+__visible DEFINE_PER_CPU_SHARED_ALIGNED(struct tss_struct, cpu_tss) = {
+	.x86_tss = {
+		.sp0 = TOP_OF_INIT_STACK,
+#ifdef CONFIG_X86_32
+		.ss0 = __KERNEL_DS,
+		.ss1 = __KERNEL_CS,
+		.io_bitmap_base	= INVALID_IO_BITMAP_OFFSET,
+#endif
+	 },
+#ifdef CONFIG_X86_32
+	 /*
+	  * Note that the .io_bitmap member must be extra-big. This is because
+	  * the CPU will access an additional byte beyond the end of the IO
+	  * permission bitmap. The extra byte must be all 1 bits, and must
+	  * be within the limit.
+	  */
+	.io_bitmap		= { [0 ... IO_BITMAP_LONGS] = ~0 },
+#endif
+};
+EXPORT_PER_CPU_SYMBOL_GPL(cpu_tss);
 
 #ifdef CONFIG_X86_64
 static DEFINE_PER_CPU(unsigned char, is_idle);
@@ -69,8 +89,8 @@ int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src)
 
 	dst->thread.fpu_counter = 0;
 	dst->thread.fpu.has_fpu = 0;
-	dst->thread.fpu.last_cpu = ~0;
 	dst->thread.fpu.state = NULL;
+	task_disable_lazy_fpu_restore(dst);
 	if (tsk_used_math(src)) {
 		int err = fpu_alloc(&dst->thread.fpu);
 		if (err)
@@ -109,7 +129,7 @@ void exit_thread(void)
 	unsigned long *bp = t->io_bitmap_ptr;
 
 	if (bp) {
-		struct tss_struct *tss = &per_cpu(init_tss, get_cpu());
+		struct tss_struct *tss = &per_cpu(cpu_tss, get_cpu());
 
 		t->io_bitmap_ptr = NULL;
 		clear_thread_flag(TIF_IO_BITMAP);
@@ -131,13 +151,18 @@ void flush_thread(void)
 
 	flush_ptrace_hw_breakpoint(tsk);
 	memset(tsk->thread.tls_array, 0, sizeof(tsk->thread.tls_array));
-	drop_init_fpu(tsk);
-	/*
-	 * Free the FPU state for non xsave platforms. They get reallocated
-	 * lazily at the first use.
-	 */
-	if (!use_eager_fpu())
+
+	if (!use_eager_fpu()) {
+		/* FPU state will be reallocated lazily at the first use. */
+		drop_fpu(tsk);
 		free_thread_xstate(tsk);
+	} else if (!used_math()) {
+		/* kthread execs. TODO: cleanup this horror. */
+		if (WARN_ON(init_fpu(tsk)))
+			force_sig(SIGKILL, tsk);
+		user_fpu_begin();
+		restore_init_xstate();
+	}
 }
 
 static void hard_disable_TSC(void)
@@ -377,14 +402,11 @@ static void amd_e400_idle(void)
 
 		if (!cpumask_test_cpu(cpu, amd_e400_c1e_mask)) {
 			cpumask_set_cpu(cpu, amd_e400_c1e_mask);
-			/*
-			 * Force broadcast so ACPI can not interfere.
-			 */
-			clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_FORCE,
-					   &cpu);
+			/* Force broadcast so ACPI can not interfere. */
+			tick_broadcast_force();
 			pr_info("Switch to broadcast mode on CPU%d\n", cpu);
 		}
-		clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_ENTER, &cpu);
+		tick_broadcast_enter();
 
 		default_idle();
 
@@ -393,12 +415,59 @@ static void amd_e400_idle(void)
 		 * called with interrupts disabled.
 		 */
 		local_irq_disable();
-		clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_EXIT, &cpu);
+		tick_broadcast_exit();
 		local_irq_enable();
 	} else
 		default_idle();
 }
 
+/*
+ * Intel Core2 and older machines prefer MWAIT over HALT for C1.
+ * We can't rely on cpuidle installing MWAIT, because it will not load
+ * on systems that support only C1 -- so the boot default must be MWAIT.
+ *
+ * Some AMD machines are the opposite, they depend on using HALT.
+ *
+ * So for default C1, which is used during boot until cpuidle loads,
+ * use MWAIT-C1 on Intel HW that has it, else use HALT.
+ */
+static int prefer_mwait_c1_over_halt(const struct cpuinfo_x86 *c)
+{
+	if (c->x86_vendor != X86_VENDOR_INTEL)
+		return 0;
+
+	if (!cpu_has(c, X86_FEATURE_MWAIT))
+		return 0;
+
+	return 1;
+}
+
+/*
+ * MONITOR/MWAIT with no hints, used for default default C1 state.
+ * This invokes MWAIT with interrutps enabled and no flags,
+ * which is backwards compatible with the original MWAIT implementation.
+ */
+
+static void mwait_idle(void)
+{
+	if (!current_set_polling_and_test()) {
+		if (this_cpu_has(X86_BUG_CLFLUSH_MONITOR)) {
+			smp_mb(); /* quirk */
+			clflush((void *)&current_thread_info()->flags);
+			smp_mb(); /* quirk */
+		}
+
+		__monitor((void *)&current_thread_info()->flags, 0, 0);
+		if (!need_resched())
+			__sti_mwait(0, 0);
+		else
+			local_irq_enable();
+	} else {
+		local_irq_enable();
+	}
+	__current_clr_polling();
+}
+
 void select_idle_routine(const struct cpuinfo_x86 *c)
 {
 #ifdef CONFIG_SMP
@@ -412,6 +481,9 @@ void select_idle_routine(const struct cpuinfo_x86 *c)
 		/* E400: APIC timer interrupt does not wake up CPU from C1e */
 		pr_info("using AMD E400 aware idle routine\n");
 		x86_idle = amd_e400_idle;
+	} else if (prefer_mwait_c1_over_halt(c)) {
+		pr_info("using mwait in idle threads\n");
+		x86_idle = mwait_idle;
 	} else
 		x86_idle = default_idle;
 }
diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c
index 603c4f9..8ed2106 100644
--- a/arch/x86/kernel/process_32.c
+++ b/arch/x86/kernel/process_32.c
@@ -73,7 +73,7 @@ void __show_regs(struct pt_regs *regs, int all)
 	unsigned long sp;
 	unsigned short ss, gs;
 
-	if (user_mode_vm(regs)) {
+	if (user_mode(regs)) {
 		sp = regs->sp;
 		ss = regs->ss & 0xffff;
 		gs = get_user_gs(regs);
@@ -206,11 +206,7 @@ start_thread(struct pt_regs *regs, unsigned long new_ip, unsigned long new_sp)
 	regs->ip		= new_ip;
 	regs->sp		= new_sp;
 	regs->flags		= X86_EFLAGS_IF;
-	/*
-	 * force it to the iret return path by making it look as if there was
-	 * some work pending.
-	 */
-	set_thread_flag(TIF_NOTIFY_RESUME);
+	force_iret();
 }
 EXPORT_SYMBOL_GPL(start_thread);
 
@@ -248,7 +244,7 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
 	struct thread_struct *prev = &prev_p->thread,
 				 *next = &next_p->thread;
 	int cpu = smp_processor_id();
-	struct tss_struct *tss = &per_cpu(init_tss, cpu);
+	struct tss_struct *tss = &per_cpu(cpu_tss, cpu);
 	fpu_switch_t fpu;
 
 	/* never put a printk in __switch_to... printk() calls wake_up*() indirectly */
@@ -256,11 +252,6 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
 	fpu = switch_fpu_prepare(prev_p, next_p, cpu);
 
 	/*
-	 * Reload esp0.
-	 */
-	load_sp0(tss, next);
-
-	/*
 	 * Save away %gs. No need to save %fs, as it was saved on the
 	 * stack on entry.  No need to save %es and %ds, as those are
 	 * always kernel segments while inside the kernel.  Doing this
@@ -310,9 +301,17 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
 	 */
 	arch_end_context_switch(next_p);
 
+	/*
+	 * Reload esp0, kernel_stack, and current_top_of_stack.  This changes
+	 * current_thread_info().
+	 */
+	load_sp0(tss, next);
 	this_cpu_write(kernel_stack,
-		  (unsigned long)task_stack_page(next_p) +
-		  THREAD_SIZE - KERNEL_STACK_OFFSET);
+		       (unsigned long)task_stack_page(next_p) +
+		       THREAD_SIZE);
+	this_cpu_write(cpu_current_top_of_stack,
+		       (unsigned long)task_stack_page(next_p) +
+		       THREAD_SIZE);
 
 	/*
 	 * Restore %gs if needed (which is common)
diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index 67fcc43..4baaa97 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -52,7 +52,7 @@
 
 asmlinkage extern void ret_from_fork(void);
 
-__visible DEFINE_PER_CPU(unsigned long, old_rsp);
+__visible DEFINE_PER_CPU(unsigned long, rsp_scratch);
 
 /* Prints also some state that isn't saved in the pt_regs */
 void __show_regs(struct pt_regs *regs, int all)
@@ -161,7 +161,6 @@ int copy_thread(unsigned long clone_flags, unsigned long sp,
 	p->thread.sp0 = (unsigned long)task_stack_page(p) + THREAD_SIZE;
 	childregs = task_pt_regs(p);
 	p->thread.sp = (unsigned long) childregs;
-	p->thread.usersp = me->thread.usersp;
 	set_tsk_thread_flag(p, TIF_FORK);
 	p->thread.io_bitmap_ptr = NULL;
 
@@ -207,7 +206,7 @@ int copy_thread(unsigned long clone_flags, unsigned long sp,
 	 */
 	if (clone_flags & CLONE_SETTLS) {
 #ifdef CONFIG_IA32_EMULATION
-		if (test_thread_flag(TIF_IA32))
+		if (is_ia32_task())
 			err = do_set_thread_area(p, -1,
 				(struct user_desc __user *)childregs->si, 0);
 		else
@@ -235,13 +234,12 @@ start_thread_common(struct pt_regs *regs, unsigned long new_ip,
 	loadsegment(es, _ds);
 	loadsegment(ds, _ds);
 	load_gs_index(0);
-	current->thread.usersp	= new_sp;
 	regs->ip		= new_ip;
 	regs->sp		= new_sp;
-	this_cpu_write(old_rsp, new_sp);
 	regs->cs		= _cs;
 	regs->ss		= _ss;
 	regs->flags		= X86_EFLAGS_IF;
+	force_iret();
 }
 
 void
@@ -277,15 +275,12 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
 	struct thread_struct *prev = &prev_p->thread;
 	struct thread_struct *next = &next_p->thread;
 	int cpu = smp_processor_id();
-	struct tss_struct *tss = &per_cpu(init_tss, cpu);
+	struct tss_struct *tss = &per_cpu(cpu_tss, cpu);
 	unsigned fsindex, gsindex;
 	fpu_switch_t fpu;
 
 	fpu = switch_fpu_prepare(prev_p, next_p, cpu);
 
-	/* Reload esp0 and ss1. */
-	load_sp0(tss, next);
-
 	/* We must save %fs and %gs before load_TLS() because
 	 * %fs and %gs may be cleared by load_TLS().
 	 *
@@ -401,8 +396,6 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
 	/*
 	 * Switch the PDA and FPU contexts.
 	 */
-	prev->usersp = this_cpu_read(old_rsp);
-	this_cpu_write(old_rsp, next->usersp);
 	this_cpu_write(current_task, next_p);
 
 	/*
@@ -413,9 +406,11 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
 	task_thread_info(prev_p)->saved_preempt_count = this_cpu_read(__preempt_count);
 	this_cpu_write(__preempt_count, task_thread_info(next_p)->saved_preempt_count);
 
+	/* Reload esp0 and ss1.  This changes current_thread_info(). */
+	load_sp0(tss, next);
+
 	this_cpu_write(kernel_stack,
-		  (unsigned long)task_stack_page(next_p) +
-		  THREAD_SIZE - KERNEL_STACK_OFFSET);
+		(unsigned long)task_stack_page(next_p) + THREAD_SIZE);
 
 	/*
 	 * Now maybe reload the debug registers and handle I/O bitmaps
@@ -602,6 +597,5 @@ long sys_arch_prctl(int code, unsigned long addr)
 
 unsigned long KSTK_ESP(struct task_struct *task)
 {
-	return (test_tsk_thread_flag(task, TIF_IA32)) ?
-			(task_pt_regs(task)->sp) : ((task)->thread.usersp);
+	return task_pt_regs(task)->sp;
 }
diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c
index e510618..a7bc794 100644
--- a/arch/x86/kernel/ptrace.c
+++ b/arch/x86/kernel/ptrace.c
@@ -364,18 +364,12 @@ static int set_segment_reg(struct task_struct *task,
 	case offsetof(struct user_regs_struct,cs):
 		if (unlikely(value == 0))
 			return -EIO;
-#ifdef CONFIG_IA32_EMULATION
-		if (test_tsk_thread_flag(task, TIF_IA32))
-			task_pt_regs(task)->cs = value;
-#endif
+		task_pt_regs(task)->cs = value;
 		break;
 	case offsetof(struct user_regs_struct,ss):
 		if (unlikely(value == 0))
 			return -EIO;
-#ifdef CONFIG_IA32_EMULATION
-		if (test_tsk_thread_flag(task, TIF_IA32))
-			task_pt_regs(task)->ss = value;
-#endif
+		task_pt_regs(task)->ss = value;
 		break;
 	}
 
@@ -1421,7 +1415,7 @@ static void fill_sigtrap_info(struct task_struct *tsk,
 	memset(info, 0, sizeof(*info));
 	info->si_signo = SIGTRAP;
 	info->si_code = si_code;
-	info->si_addr = user_mode_vm(regs) ? (void __user *)regs->ip : NULL;
+	info->si_addr = user_mode(regs) ? (void __user *)regs->ip : NULL;
 }
 
 void user_single_step_siginfo(struct task_struct *tsk,
diff --git a/arch/x86/kernel/pvclock.c b/arch/x86/kernel/pvclock.c
index 2f355d2..e5ecd20 100644
--- a/arch/x86/kernel/pvclock.c
+++ b/arch/x86/kernel/pvclock.c
@@ -141,7 +141,46 @@ void pvclock_read_wallclock(struct pvclock_wall_clock *wall_clock,
 	set_normalized_timespec(ts, now.tv_sec, now.tv_nsec);
 }
 
+static struct pvclock_vsyscall_time_info *pvclock_vdso_info;
+
+static struct pvclock_vsyscall_time_info *
+pvclock_get_vsyscall_user_time_info(int cpu)
+{
+	if (!pvclock_vdso_info) {
+		BUG();
+		return NULL;
+	}
+
+	return &pvclock_vdso_info[cpu];
+}
+
+struct pvclock_vcpu_time_info *pvclock_get_vsyscall_time_info(int cpu)
+{
+	return &pvclock_get_vsyscall_user_time_info(cpu)->pvti;
+}
+
 #ifdef CONFIG_X86_64
+static int pvclock_task_migrate(struct notifier_block *nb, unsigned long l,
+			        void *v)
+{
+	struct task_migration_notifier *mn = v;
+	struct pvclock_vsyscall_time_info *pvti;
+
+	pvti = pvclock_get_vsyscall_user_time_info(mn->from_cpu);
+
+	/* this is NULL when pvclock vsyscall is not initialized */
+	if (unlikely(pvti == NULL))
+		return NOTIFY_DONE;
+
+	pvti->migrate_count++;
+
+	return NOTIFY_DONE;
+}
+
+static struct notifier_block pvclock_migrate = {
+	.notifier_call = pvclock_task_migrate,
+};
+
 /*
  * Initialize the generic pvclock vsyscall state.  This will allocate
  * a/some page(s) for the per-vcpu pvclock information, set up a
@@ -155,12 +194,17 @@ int __init pvclock_init_vsyscall(struct pvclock_vsyscall_time_info *i,
 
 	WARN_ON (size != PVCLOCK_VSYSCALL_NR_PAGES*PAGE_SIZE);
 
+	pvclock_vdso_info = i;
+
 	for (idx = 0; idx <= (PVCLOCK_FIXMAP_END-PVCLOCK_FIXMAP_BEGIN); idx++) {
 		__set_fixmap(PVCLOCK_FIXMAP_BEGIN + idx,
 			     __pa(i) + (idx*PAGE_SIZE),
 			     PAGE_KERNEL_VVAR);
 	}
 
+
+	register_task_migration_notifier(&pvclock_migrate);
+
 	return 0;
 }
 #endif
diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c
index bae6c60..86db4bc 100644
--- a/arch/x86/kernel/reboot.c
+++ b/arch/x86/kernel/reboot.c
@@ -183,6 +183,16 @@ static struct dmi_system_id __initdata reboot_dmi_table[] = {
 		},
 	},
 
+	/* ASRock */
+	{	/* Handle problems with rebooting on ASRock Q1900DC-ITX */
+		.callback = set_pci_reboot,
+		.ident = "ASRock Q1900DC-ITX",
+		.matches = {
+			DMI_MATCH(DMI_BOARD_VENDOR, "ASRock"),
+			DMI_MATCH(DMI_BOARD_NAME, "Q1900DC-ITX"),
+		},
+	},
+
 	/* ASUS */
 	{	/* Handle problems with rebooting on ASUS P4S800 */
 		.callback = set_bios_reboot,
diff --git a/arch/x86/kernel/relocate_kernel_32.S b/arch/x86/kernel/relocate_kernel_32.S
index e13f8e7..77630d5 100644
--- a/arch/x86/kernel/relocate_kernel_32.S
+++ b/arch/x86/kernel/relocate_kernel_32.S
@@ -226,23 +226,23 @@ swap_pages:
 	movl	(%ebx), %ecx
 	addl	$4, %ebx
 1:
-	testl	$0x1,   %ecx  /* is it a destination page */
+	testb	$0x1, %cl     /* is it a destination page */
 	jz	2f
 	movl	%ecx,	%edi
 	andl	$0xfffff000, %edi
 	jmp     0b
 2:
-	testl	$0x2,	%ecx  /* is it an indirection page */
+	testb	$0x2, %cl    /* is it an indirection page */
 	jz	2f
 	movl	%ecx,	%ebx
 	andl	$0xfffff000, %ebx
 	jmp     0b
 2:
-	testl   $0x4,   %ecx /* is it the done indicator */
+	testb   $0x4, %cl    /* is it the done indicator */
 	jz      2f
 	jmp     3f
 2:
-	testl   $0x8,   %ecx /* is it the source indicator */
+	testb   $0x8, %cl    /* is it the source indicator */
 	jz      0b	     /* Ignore it otherwise */
 	movl    %ecx,   %esi /* For every source page do a copy */
 	andl    $0xfffff000, %esi
diff --git a/arch/x86/kernel/relocate_kernel_64.S b/arch/x86/kernel/relocate_kernel_64.S
index 3fd2c69..98111b3 100644
--- a/arch/x86/kernel/relocate_kernel_64.S
+++ b/arch/x86/kernel/relocate_kernel_64.S
@@ -123,7 +123,7 @@ identity_mapped:
 	 * Set cr4 to a known state:
 	 *  - physical address extension enabled
 	 */
-	movq	$X86_CR4_PAE, %rax
+	movl	$X86_CR4_PAE, %eax
 	movq	%rax, %cr4
 
 	jmp 1f
@@ -221,23 +221,23 @@ swap_pages:
 	movq	(%rbx), %rcx
 	addq	$8,	%rbx
 1:
-	testq	$0x1,	%rcx  /* is it a destination page? */
+	testb	$0x1,	%cl   /* is it a destination page? */
 	jz	2f
 	movq	%rcx,	%rdi
 	andq	$0xfffffffffffff000, %rdi
 	jmp	0b
 2:
-	testq	$0x2,	%rcx  /* is it an indirection page? */
+	testb	$0x2,	%cl   /* is it an indirection page? */
 	jz	2f
 	movq	%rcx,   %rbx
 	andq	$0xfffffffffffff000, %rbx
 	jmp	0b
 2:
-	testq	$0x4,	%rcx  /* is it the done indicator? */
+	testb	$0x4,	%cl   /* is it the done indicator? */
 	jz	2f
 	jmp	3f
 2:
-	testq	$0x8,	%rcx  /* is it the source indicator? */
+	testb	$0x8,	%cl   /* is it the source indicator? */
 	jz	0b	      /* Ignore it otherwise */
 	movq	%rcx,   %rsi  /* For ever source page do a copy */
 	andq	$0xfffffffffffff000, %rsi
@@ -246,17 +246,17 @@ swap_pages:
 	movq	%rsi, %rax
 
 	movq	%r10, %rdi
-	movq	$512,   %rcx
+	movl	$512, %ecx
 	rep ; movsq
 
 	movq	%rax, %rdi
 	movq	%rdx, %rsi
-	movq	$512,   %rcx
+	movl	$512, %ecx
 	rep ; movsq
 
 	movq	%rdx, %rdi
 	movq	%r10, %rsi
-	movq	$512,   %rcx
+	movl	$512, %ecx
 	rep ; movsq
 
 	lea	PAGE_SIZE(%rax), %rsi
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index 98dc931..d74ac33 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -122,8 +122,6 @@
 unsigned long max_low_pfn_mapped;
 unsigned long max_pfn_mapped;
 
-bool __read_mostly kaslr_enabled = false;
-
 #ifdef CONFIG_DMI
 RESERVE_BRK(dmi_alloc, 65536);
 #endif
@@ -356,7 +354,7 @@ static void __init relocate_initrd(void)
 		mapaddr = ramdisk_image & PAGE_MASK;
 		p = early_memremap(mapaddr, clen+slop);
 		memcpy(q, p+slop, clen);
-		early_iounmap(p, clen+slop);
+		early_memunmap(p, clen+slop);
 		q += clen;
 		ramdisk_image += clen;
 		ramdisk_size  -= clen;
@@ -427,11 +425,6 @@ static void __init reserve_initrd(void)
 }
 #endif /* CONFIG_BLK_DEV_INITRD */
 
-static void __init parse_kaslr_setup(u64 pa_data, u32 data_len)
-{
-	kaslr_enabled = (bool)(pa_data + sizeof(struct setup_data));
-}
-
 static void __init parse_setup_data(void)
 {
 	struct setup_data *data;
@@ -445,7 +438,7 @@ static void __init parse_setup_data(void)
 		data_len = data->len + sizeof(struct setup_data);
 		data_type = data->type;
 		pa_next = data->next;
-		early_iounmap(data, sizeof(*data));
+		early_memunmap(data, sizeof(*data));
 
 		switch (data_type) {
 		case SETUP_E820_EXT:
@@ -457,9 +450,6 @@ static void __init parse_setup_data(void)
 		case SETUP_EFI:
 			parse_efi_setup(pa_data, data_len);
 			break;
-		case SETUP_KASLR:
-			parse_kaslr_setup(pa_data, data_len);
-			break;
 		default:
 			break;
 		}
@@ -480,7 +470,7 @@ static void __init e820_reserve_setup_data(void)
 			 E820_RAM, E820_RESERVED_KERN);
 		found = 1;
 		pa_data = data->next;
-		early_iounmap(data, sizeof(*data));
+		early_memunmap(data, sizeof(*data));
 	}
 	if (!found)
 		return;
@@ -501,7 +491,7 @@ static void __init memblock_x86_reserve_range_setup_data(void)
 		data = early_memremap(pa_data, sizeof(*data));
 		memblock_reserve(pa_data, sizeof(*data) + data->len);
 		pa_data = data->next;
-		early_iounmap(data, sizeof(*data));
+		early_memunmap(data, sizeof(*data));
 	}
 }
 
@@ -842,14 +832,15 @@ static void __init trim_low_memory_range(void)
 static int
 dump_kernel_offset(struct notifier_block *self, unsigned long v, void *p)
 {
-	if (kaslr_enabled)
+	if (kaslr_enabled()) {
 		pr_emerg("Kernel Offset: 0x%lx from 0x%lx (relocation range: 0x%lx-0x%lx)\n",
 			 (unsigned long)&_text - __START_KERNEL,
 			 __START_KERNEL,
 			 __START_KERNEL_map,
 			 MODULES_VADDR-1);
-	else
+	} else {
 		pr_emerg("Kernel Offset: disabled\n");
+	}
 
 	return 0;
 }
diff --git a/arch/x86/kernel/signal.c b/arch/x86/kernel/signal.c
index e504246..3e58186 100644
--- a/arch/x86/kernel/signal.c
+++ b/arch/x86/kernel/signal.c
@@ -61,8 +61,7 @@
 	regs->seg = GET_SEG(seg) | 3;			\
 } while (0)
 
-int restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc,
-		       unsigned long *pax)
+int restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc)
 {
 	void __user *buf;
 	unsigned int tmpflags;
@@ -81,7 +80,7 @@ int restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc,
 #endif /* CONFIG_X86_32 */
 
 		COPY(di); COPY(si); COPY(bp); COPY(sp); COPY(bx);
-		COPY(dx); COPY(cx); COPY(ip);
+		COPY(dx); COPY(cx); COPY(ip); COPY(ax);
 
 #ifdef CONFIG_X86_64
 		COPY(r8);
@@ -94,27 +93,20 @@ int restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc,
 		COPY(r15);
 #endif /* CONFIG_X86_64 */
 
-#ifdef CONFIG_X86_32
 		COPY_SEG_CPL3(cs);
 		COPY_SEG_CPL3(ss);
-#else /* !CONFIG_X86_32 */
-		/* Kernel saves and restores only the CS segment register on signals,
-		 * which is the bare minimum needed to allow mixed 32/64-bit code.
-		 * App's signal handler can save/restore other segments if needed. */
-		COPY_SEG_CPL3(cs);
-#endif /* CONFIG_X86_32 */
 
 		get_user_ex(tmpflags, &sc->flags);
 		regs->flags = (regs->flags & ~FIX_EFLAGS) | (tmpflags & FIX_EFLAGS);
 		regs->orig_ax = -1;		/* disable syscall checks */
 
 		get_user_ex(buf, &sc->fpstate);
-
-		get_user_ex(*pax, &sc->ax);
 	} get_user_catch(err);
 
 	err |= restore_xstate_sig(buf, config_enabled(CONFIG_X86_32));
 
+	force_iret();
+
 	return err;
 }
 
@@ -162,8 +154,9 @@ int setup_sigcontext(struct sigcontext __user *sc, void __user *fpstate,
 #else /* !CONFIG_X86_32 */
 		put_user_ex(regs->flags, &sc->flags);
 		put_user_ex(regs->cs, &sc->cs);
-		put_user_ex(0, &sc->gs);
-		put_user_ex(0, &sc->fs);
+		put_user_ex(0, &sc->__pad2);
+		put_user_ex(0, &sc->__pad1);
+		put_user_ex(regs->ss, &sc->ss);
 #endif /* CONFIG_X86_32 */
 
 		put_user_ex(fpstate, &sc->fpstate);
@@ -457,9 +450,19 @@ static int __setup_rt_frame(int sig, struct ksignal *ksig,
 
 	regs->sp = (unsigned long)frame;
 
-	/* Set up the CS register to run signal handlers in 64-bit mode,
-	   even if the handler happens to be interrupting 32-bit code. */
+	/*
+	 * Set up the CS and SS registers to run signal handlers in
+	 * 64-bit mode, even if the handler happens to be interrupting
+	 * 32-bit or 16-bit code.
+	 *
+	 * SS is subtle.  In 64-bit mode, we don't need any particular
+	 * SS descriptor, but we do need SS to be valid.  It's possible
+	 * that the old SS is entirely bogus -- this can happen if the
+	 * signal we're trying to deliver is #GP or #SS caused by a bad
+	 * SS value.
+	 */
 	regs->cs = __USER_CS;
+	regs->ss = __USER_DS;
 
 	return 0;
 }
@@ -539,7 +542,6 @@ asmlinkage unsigned long sys_sigreturn(void)
 {
 	struct pt_regs *regs = current_pt_regs();
 	struct sigframe __user *frame;
-	unsigned long ax;
 	sigset_t set;
 
 	frame = (struct sigframe __user *)(regs->sp - 8);
@@ -553,9 +555,9 @@ asmlinkage unsigned long sys_sigreturn(void)
 
 	set_current_blocked(&set);
 
-	if (restore_sigcontext(regs, &frame->sc, &ax))
+	if (restore_sigcontext(regs, &frame->sc))
 		goto badframe;
-	return ax;
+	return regs->ax;
 
 badframe:
 	signal_fault(regs, frame, "sigreturn");
@@ -568,7 +570,6 @@ asmlinkage long sys_rt_sigreturn(void)
 {
 	struct pt_regs *regs = current_pt_regs();
 	struct rt_sigframe __user *frame;
-	unsigned long ax;
 	sigset_t set;
 
 	frame = (struct rt_sigframe __user *)(regs->sp - sizeof(long));
@@ -579,13 +580,13 @@ asmlinkage long sys_rt_sigreturn(void)
 
 	set_current_blocked(&set);
 
-	if (restore_sigcontext(regs, &frame->uc.uc_mcontext, &ax))
+	if (restore_sigcontext(regs, &frame->uc.uc_mcontext))
 		goto badframe;
 
 	if (restore_altstack(&frame->uc.uc_stack))
 		goto badframe;
 
-	return ax;
+	return regs->ax;
 
 badframe:
 	signal_fault(regs, frame, "rt_sigreturn");
@@ -679,7 +680,7 @@ handle_signal(struct ksignal *ksig, struct pt_regs *regs)
 		 * Ensure the signal handler starts with the new fpu state.
 		 */
 		if (used_math())
-			drop_init_fpu(current);
+			fpu_reset_state(current);
 	}
 	signal_setup_done(failed, ksig, test_thread_flag(TIF_SINGLESTEP));
 }
@@ -780,7 +781,6 @@ asmlinkage long sys32_x32_rt_sigreturn(void)
 	struct pt_regs *regs = current_pt_regs();
 	struct rt_sigframe_x32 __user *frame;
 	sigset_t set;
-	unsigned long ax;
 
 	frame = (struct rt_sigframe_x32 __user *)(regs->sp - 8);
 
@@ -791,13 +791,13 @@ asmlinkage long sys32_x32_rt_sigreturn(void)
 
 	set_current_blocked(&set);
 
-	if (restore_sigcontext(regs, &frame->uc.uc_mcontext, &ax))
+	if (restore_sigcontext(regs, &frame->uc.uc_mcontext))
 		goto badframe;
 
 	if (compat_restore_altstack(&frame->uc.uc_stack))
 		goto badframe;
 
-	return ax;
+	return regs->ax;
 
 badframe:
 	signal_fault(regs, frame, "x32 rt_sigreturn");
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index febc6aa..7035f6b 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -779,6 +779,26 @@ out:
 	return boot_error;
 }
 
+void common_cpu_up(unsigned int cpu, struct task_struct *idle)
+{
+	/* Just in case we booted with a single CPU. */
+	alternatives_enable_smp();
+
+	per_cpu(current_task, cpu) = idle;
+
+#ifdef CONFIG_X86_32
+	/* Stack for startup_32 can be just as for start_secondary onwards */
+	irq_ctx_init(cpu);
+	per_cpu(cpu_current_top_of_stack, cpu) =
+		(unsigned long)task_stack_page(idle) + THREAD_SIZE;
+#else
+	clear_tsk_thread_flag(idle, TIF_FORK);
+	initial_gs = per_cpu_offset(cpu);
+#endif
+	per_cpu(kernel_stack, cpu) =
+		(unsigned long)task_stack_page(idle) + THREAD_SIZE;
+}
+
 /*
  * NOTE - on most systems this is a PHYSICAL apic ID, but on multiquad
  * (ie clustered apic addressing mode), this is a LOGICAL apic ID.
@@ -796,23 +816,9 @@ static int do_boot_cpu(int apicid, int cpu, struct task_struct *idle)
 	int cpu0_nmi_registered = 0;
 	unsigned long timeout;
 
-	/* Just in case we booted with a single CPU. */
-	alternatives_enable_smp();
-
 	idle->thread.sp = (unsigned long) (((struct pt_regs *)
 			  (THREAD_SIZE +  task_stack_page(idle))) - 1);
-	per_cpu(current_task, cpu) = idle;
 
-#ifdef CONFIG_X86_32
-	/* Stack for startup_32 can be just as for start_secondary onwards */
-	irq_ctx_init(cpu);
-#else
-	clear_tsk_thread_flag(idle, TIF_FORK);
-	initial_gs = per_cpu_offset(cpu);
-#endif
-	per_cpu(kernel_stack, cpu) =
-		(unsigned long)task_stack_page(idle) -
-		KERNEL_STACK_OFFSET + THREAD_SIZE;
 	early_gdt_descr.address = (unsigned long)get_cpu_gdt_table(cpu);
 	initial_code = (unsigned long)start_secondary;
 	stack_start  = idle->thread.sp;
@@ -953,6 +959,8 @@ int native_cpu_up(unsigned int cpu, struct task_struct *tidle)
 	/* the FPU context is blank, nobody can own it */
 	__cpu_disable_lazy_restore(cpu);
 
+	common_cpu_up(cpu, tidle);
+
 	err = do_boot_cpu(apicid, cpu, tidle);
 	if (err) {
 		pr_err("do_boot_cpu failed(%d) to wakeup CPU#%u\n", err, cpu);
@@ -1086,8 +1094,6 @@ static int __init smp_sanity_check(unsigned max_cpus)
 		return SMP_NO_APIC;
 	}
 
-	verify_local_APIC();
-
 	/*
 	 * If SMP should be disabled, then really disable it!
 	 */
diff --git a/arch/x86/kernel/sys_x86_64.c b/arch/x86/kernel/sys_x86_64.c
index 30277e2..10e0272 100644
--- a/arch/x86/kernel/sys_x86_64.c
+++ b/arch/x86/kernel/sys_x86_64.c
@@ -34,10 +34,26 @@ static unsigned long get_align_mask(void)
 	return va_align.mask;
 }
 
+/*
+ * To avoid aliasing in the I$ on AMD F15h, the bits defined by the
+ * va_align.bits, [12:upper_bit), are set to a random value instead of
+ * zeroing them. This random value is computed once per boot. This form
+ * of ASLR is known as "per-boot ASLR".
+ *
+ * To achieve this, the random value is added to the info.align_offset
+ * value before calling vm_unmapped_area() or ORed directly to the
+ * address.
+ */
+static unsigned long get_align_bits(void)
+{
+	return va_align.bits & get_align_mask();
+}
+
 unsigned long align_vdso_addr(unsigned long addr)
 {
 	unsigned long align_mask = get_align_mask();
-	return (addr + align_mask) & ~align_mask;
+	addr = (addr + align_mask) & ~align_mask;
+	return addr | get_align_bits();
 }
 
 static int __init control_va_addr_alignment(char *str)
@@ -135,8 +151,12 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
 	info.length = len;
 	info.low_limit = begin;
 	info.high_limit = end;
-	info.align_mask = filp ? get_align_mask() : 0;
+	info.align_mask = 0;
 	info.align_offset = pgoff << PAGE_SHIFT;
+	if (filp) {
+		info.align_mask = get_align_mask();
+		info.align_offset += get_align_bits();
+	}
 	return vm_unmapped_area(&info);
 }
 
@@ -174,8 +194,12 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 	info.length = len;
 	info.low_limit = PAGE_SIZE;
 	info.high_limit = mm->mmap_base;
-	info.align_mask = filp ? get_align_mask() : 0;
+	info.align_mask = 0;
 	info.align_offset = pgoff << PAGE_SHIFT;
+	if (filp) {
+		info.align_mask = get_align_mask();
+		info.align_offset += get_align_bits();
+	}
 	addr = vm_unmapped_area(&info);
 	if (!(addr & ~PAGE_MASK))
 		return addr;
diff --git a/arch/x86/kernel/syscall_32.c b/arch/x86/kernel/syscall_32.c
index e9bcd57..3777189 100644
--- a/arch/x86/kernel/syscall_32.c
+++ b/arch/x86/kernel/syscall_32.c
@@ -5,21 +5,29 @@
 #include <linux/cache.h>
 #include <asm/asm-offsets.h>
 
-#define __SYSCALL_I386(nr, sym, compat) extern asmlinkage void sym(void) ;
+#ifdef CONFIG_IA32_EMULATION
+#define SYM(sym, compat) compat
+#else
+#define SYM(sym, compat) sym
+#define ia32_sys_call_table sys_call_table
+#define __NR_ia32_syscall_max __NR_syscall_max
+#endif
+
+#define __SYSCALL_I386(nr, sym, compat) extern asmlinkage void SYM(sym, compat)(void) ;
 #include <asm/syscalls_32.h>
 #undef __SYSCALL_I386
 
-#define __SYSCALL_I386(nr, sym, compat) [nr] = sym,
+#define __SYSCALL_I386(nr, sym, compat) [nr] = SYM(sym, compat),
 
 typedef asmlinkage void (*sys_call_ptr_t)(void);
 
 extern asmlinkage void sys_ni_syscall(void);
 
-__visible const sys_call_ptr_t sys_call_table[__NR_syscall_max+1] = {
+__visible const sys_call_ptr_t ia32_sys_call_table[__NR_ia32_syscall_max+1] = {
 	/*
 	 * Smells like a compiler bug -- it doesn't work
 	 * when the & below is removed.
 	 */
-	[0 ... __NR_syscall_max] = &sys_ni_syscall,
+	[0 ... __NR_ia32_syscall_max] = &sys_ni_syscall,
 #include <asm/syscalls_32.h>
 };
diff --git a/arch/x86/kernel/time.c b/arch/x86/kernel/time.c
index 25adc0e..d39c091 100644
--- a/arch/x86/kernel/time.c
+++ b/arch/x86/kernel/time.c
@@ -30,7 +30,7 @@ unsigned long profile_pc(struct pt_regs *regs)
 {
 	unsigned long pc = instruction_pointer(regs);
 
-	if (!user_mode_vm(regs) && in_lock_functions(pc)) {
+	if (!user_mode(regs) && in_lock_functions(pc)) {
 #ifdef CONFIG_FRAME_POINTER
 		return *(unsigned long *)(regs->bp + sizeof(long));
 #else
diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c
index 9d2073e..f4fa991 100644
--- a/arch/x86/kernel/traps.c
+++ b/arch/x86/kernel/traps.c
@@ -112,7 +112,7 @@ enum ctx_state ist_enter(struct pt_regs *regs)
 {
 	enum ctx_state prev_state;
 
-	if (user_mode_vm(regs)) {
+	if (user_mode(regs)) {
 		/* Other than that, we're just an exception. */
 		prev_state = exception_enter();
 	} else {
@@ -146,7 +146,7 @@ void ist_exit(struct pt_regs *regs, enum ctx_state prev_state)
 	/* Must be before exception_exit. */
 	preempt_count_sub(HARDIRQ_OFFSET);
 
-	if (user_mode_vm(regs))
+	if (user_mode(regs))
 		return exception_exit(prev_state);
 	else
 		rcu_nmi_exit();
@@ -158,7 +158,7 @@ void ist_exit(struct pt_regs *regs, enum ctx_state prev_state)
  *
  * IST exception handlers normally cannot schedule.  As a special
  * exception, if the exception interrupted userspace code (i.e.
- * user_mode_vm(regs) would return true) and the exception was not
+ * user_mode(regs) would return true) and the exception was not
  * a double fault, it can be safe to schedule.  ist_begin_non_atomic()
  * begins a non-atomic section within an ist_enter()/ist_exit() region.
  * Callers are responsible for enabling interrupts themselves inside
@@ -167,15 +167,15 @@ void ist_exit(struct pt_regs *regs, enum ctx_state prev_state)
  */
 void ist_begin_non_atomic(struct pt_regs *regs)
 {
-	BUG_ON(!user_mode_vm(regs));
+	BUG_ON(!user_mode(regs));
 
 	/*
 	 * Sanity check: we need to be on the normal thread stack.  This
 	 * will catch asm bugs and any attempt to use ist_preempt_enable
 	 * from double_fault.
 	 */
-	BUG_ON(((current_stack_pointer() ^ this_cpu_read_stable(kernel_stack))
-		& ~(THREAD_SIZE - 1)) != 0);
+	BUG_ON((unsigned long)(current_top_of_stack() -
+			       current_stack_pointer()) >= THREAD_SIZE);
 
 	preempt_count_sub(HARDIRQ_OFFSET);
 }
@@ -194,8 +194,7 @@ static nokprobe_inline int
 do_trap_no_signal(struct task_struct *tsk, int trapnr, char *str,
 		  struct pt_regs *regs,	long error_code)
 {
-#ifdef CONFIG_X86_32
-	if (regs->flags & X86_VM_MASK) {
+	if (v8086_mode(regs)) {
 		/*
 		 * Traps 0, 1, 3, 4, and 5 should be forwarded to vm86.
 		 * On nmi (interrupt 2), do_trap should not be called.
@@ -207,7 +206,7 @@ do_trap_no_signal(struct task_struct *tsk, int trapnr, char *str,
 		}
 		return -1;
 	}
-#endif
+
 	if (!user_mode(regs)) {
 		if (!fixup_exception(regs)) {
 			tsk->thread.error_code = error_code;
@@ -462,13 +461,11 @@ do_general_protection(struct pt_regs *regs, long error_code)
 	prev_state = exception_enter();
 	conditional_sti(regs);
 
-#ifdef CONFIG_X86_32
-	if (regs->flags & X86_VM_MASK) {
+	if (v8086_mode(regs)) {
 		local_irq_enable();
 		handle_vm86_fault((struct kernel_vm86_regs *) regs, error_code);
 		goto exit;
 	}
-#endif
 
 	tsk = current;
 	if (!user_mode(regs)) {
@@ -587,7 +584,7 @@ struct bad_iret_stack *fixup_bad_iret(struct bad_iret_stack *s)
 	/* Copy the remainder of the stack from the current stack. */
 	memmove(new_stack, s, offsetof(struct bad_iret_stack, regs.ip));
 
-	BUG_ON(!user_mode_vm(&new_stack->regs));
+	BUG_ON(!user_mode(&new_stack->regs));
 	return new_stack;
 }
 NOKPROBE_SYMBOL(fixup_bad_iret);
@@ -673,7 +670,7 @@ dotraplinkage void do_debug(struct pt_regs *regs, long error_code)
 	/* It's safe to allow irq's after DR6 has been saved */
 	preempt_conditional_sti(regs);
 
-	if (regs->flags & X86_VM_MASK) {
+	if (v8086_mode(regs)) {
 		handle_vm86_trap((struct kernel_vm86_regs *) regs, error_code,
 					X86_TRAP_DB);
 		preempt_conditional_cli(regs);
@@ -721,7 +718,7 @@ static void math_error(struct pt_regs *regs, int error_code, int trapnr)
 		return;
 	conditional_sti(regs);
 
-	if (!user_mode_vm(regs))
+	if (!user_mode(regs))
 	{
 		if (!fixup_exception(regs)) {
 			task->thread.error_code = error_code;
@@ -734,7 +731,7 @@ static void math_error(struct pt_regs *regs, int error_code, int trapnr)
 	/*
 	 * Save the info for the exception handler and clear the error.
 	 */
-	save_init_fpu(task);
+	unlazy_fpu(task);
 	task->thread.trap_nr = trapnr;
 	task->thread.error_code = error_code;
 	info.si_signo = SIGFPE;
@@ -863,7 +860,7 @@ void math_state_restore(void)
 	kernel_fpu_disable();
 	__thread_fpu_begin(tsk);
 	if (unlikely(restore_fpu_checking(tsk))) {
-		drop_init_fpu(tsk);
+		fpu_reset_state(tsk);
 		force_sig_info(SIGSEGV, SEND_SIG_PRIV, tsk);
 	} else {
 		tsk->thread.fpu_counter++;
@@ -925,9 +922,21 @@ dotraplinkage void do_iret_error(struct pt_regs *regs, long error_code)
 /* Set of traps needed for early debugging. */
 void __init early_trap_init(void)
 {
-	set_intr_gate_ist(X86_TRAP_DB, &debug, DEBUG_STACK);
+	/*
+	 * Don't use IST to set DEBUG_STACK as it doesn't work until TSS
+	 * is ready in cpu_init() <-- trap_init(). Before trap_init(),
+	 * CPU runs at ring 0 so it is impossible to hit an invalid
+	 * stack.  Using the original stack works well enough at this
+	 * early stage. DEBUG_STACK will be equipped after cpu_init() in
+	 * trap_init().
+	 *
+	 * We don't need to set trace_idt_table like set_intr_gate(),
+	 * since we don't have trace_debug and it will be reset to
+	 * 'debug' in trap_init() by set_intr_gate_ist().
+	 */
+	set_intr_gate_notrace(X86_TRAP_DB, debug);
 	/* int3 can be called from all */
-	set_system_intr_gate_ist(X86_TRAP_BP, &int3, DEBUG_STACK);
+	set_system_intr_gate(X86_TRAP_BP, &int3);
 #ifdef CONFIG_X86_32
 	set_intr_gate(X86_TRAP_PF, page_fault);
 #endif
@@ -1005,6 +1014,15 @@ void __init trap_init(void)
 	 */
 	cpu_init();
 
+	/*
+	 * X86_TRAP_DB and X86_TRAP_BP have been set
+	 * in early_trap_init(). However, ITS works only after
+	 * cpu_init() loads TSS. See comments in early_trap_init().
+	 */
+	set_intr_gate_ist(X86_TRAP_DB, &debug, DEBUG_STACK);
+	/* int3 can be called from all */
+	set_system_intr_gate_ist(X86_TRAP_BP, &int3, DEBUG_STACK);
+
 	x86_init.irqs.trap_init();
 
 #ifdef CONFIG_X86_64
diff --git a/arch/x86/kernel/uprobes.c b/arch/x86/kernel/uprobes.c
index 81f8adb0..0b81ad6 100644
--- a/arch/x86/kernel/uprobes.c
+++ b/arch/x86/kernel/uprobes.c
@@ -912,7 +912,7 @@ int arch_uprobe_exception_notify(struct notifier_block *self, unsigned long val,
 	int ret = NOTIFY_DONE;
 
 	/* We are only interested in userspace traps */
-	if (regs && !user_mode_vm(regs))
+	if (regs && !user_mode(regs))
 		return NOTIFY_DONE;
 
 	switch (val) {
diff --git a/arch/x86/kernel/vm86_32.c b/arch/x86/kernel/vm86_32.c
index e8edcf5..fc9db6e 100644
--- a/arch/x86/kernel/vm86_32.c
+++ b/arch/x86/kernel/vm86_32.c
@@ -150,7 +150,7 @@ struct pt_regs *save_v86_state(struct kernel_vm86_regs *regs)
 		do_exit(SIGSEGV);
 	}
 
-	tss = &per_cpu(init_tss, get_cpu());
+	tss = &per_cpu(cpu_tss, get_cpu());
 	current->thread.sp0 = current->thread.saved_sp0;
 	current->thread.sysenter_cs = __KERNEL_CS;
 	load_sp0(tss, &current->thread);
@@ -318,7 +318,7 @@ static void do_sys_vm86(struct kernel_vm86_struct *info, struct task_struct *tsk
 	tsk->thread.saved_fs = info->regs32->fs;
 	tsk->thread.saved_gs = get_user_gs(info->regs32);
 
-	tss = &per_cpu(init_tss, get_cpu());
+	tss = &per_cpu(cpu_tss, get_cpu());
 	tsk->thread.sp0 = (unsigned long) &info->VM86_TSS_ESP0;
 	if (cpu_has_sep)
 		tsk->thread.sysenter_cs = 0;
diff --git a/arch/x86/kernel/vsyscall_gtod.c b/arch/x86/kernel/vsyscall_gtod.c
index c7d791f..51e3304 100644
--- a/arch/x86/kernel/vsyscall_gtod.c
+++ b/arch/x86/kernel/vsyscall_gtod.c
@@ -31,30 +31,30 @@ void update_vsyscall(struct timekeeper *tk)
 	gtod_write_begin(vdata);
 
 	/* copy vsyscall data */
-	vdata->vclock_mode	= tk->tkr.clock->archdata.vclock_mode;
-	vdata->cycle_last	= tk->tkr.cycle_last;
-	vdata->mask		= tk->tkr.mask;
-	vdata->mult		= tk->tkr.mult;
-	vdata->shift		= tk->tkr.shift;
+	vdata->vclock_mode	= tk->tkr_mono.clock->archdata.vclock_mode;
+	vdata->cycle_last	= tk->tkr_mono.cycle_last;
+	vdata->mask		= tk->tkr_mono.mask;
+	vdata->mult		= tk->tkr_mono.mult;
+	vdata->shift		= tk->tkr_mono.shift;
 
 	vdata->wall_time_sec		= tk->xtime_sec;
-	vdata->wall_time_snsec		= tk->tkr.xtime_nsec;
+	vdata->wall_time_snsec		= tk->tkr_mono.xtime_nsec;
 
 	vdata->monotonic_time_sec	= tk->xtime_sec
 					+ tk->wall_to_monotonic.tv_sec;
-	vdata->monotonic_time_snsec	= tk->tkr.xtime_nsec
+	vdata->monotonic_time_snsec	= tk->tkr_mono.xtime_nsec
 					+ ((u64)tk->wall_to_monotonic.tv_nsec
-						<< tk->tkr.shift);
+						<< tk->tkr_mono.shift);
 	while (vdata->monotonic_time_snsec >=
-					(((u64)NSEC_PER_SEC) << tk->tkr.shift)) {
+					(((u64)NSEC_PER_SEC) << tk->tkr_mono.shift)) {
 		vdata->monotonic_time_snsec -=
-					((u64)NSEC_PER_SEC) << tk->tkr.shift;
+					((u64)NSEC_PER_SEC) << tk->tkr_mono.shift;
 		vdata->monotonic_time_sec++;
 	}
 
 	vdata->wall_time_coarse_sec	= tk->xtime_sec;
-	vdata->wall_time_coarse_nsec	= (long)(tk->tkr.xtime_nsec >>
-						 tk->tkr.shift);
+	vdata->wall_time_coarse_nsec	= (long)(tk->tkr_mono.xtime_nsec >>
+						 tk->tkr_mono.shift);
 
 	vdata->monotonic_time_coarse_sec =
 		vdata->wall_time_coarse_sec + tk->wall_to_monotonic.tv_sec;
diff --git a/arch/x86/kernel/xsave.c b/arch/x86/kernel/xsave.c
index 34f66e5..87a815b 100644
--- a/arch/x86/kernel/xsave.c
+++ b/arch/x86/kernel/xsave.c
@@ -342,7 +342,7 @@ int __restore_xstate_sig(void __user *buf, void __user *buf_fx, int size)
 			 config_enabled(CONFIG_IA32_EMULATION));
 
 	if (!buf) {
-		drop_init_fpu(tsk);
+		fpu_reset_state(tsk);
 		return 0;
 	}
 
@@ -379,7 +379,7 @@ int __restore_xstate_sig(void __user *buf, void __user *buf_fx, int size)
 		 * thread's fpu state, reconstruct fxstate from the fsave
 		 * header. Sanitize the copied state etc.
 		 */
-		struct xsave_struct *xsave = &tsk->thread.fpu.state->xsave;
+		struct fpu *fpu = &tsk->thread.fpu;
 		struct user_i387_ia32_struct env;
 		int err = 0;
 
@@ -393,14 +393,15 @@ int __restore_xstate_sig(void __user *buf, void __user *buf_fx, int size)
 		 */
 		drop_fpu(tsk);
 
-		if (__copy_from_user(xsave, buf_fx, state_size) ||
+		if (__copy_from_user(&fpu->state->xsave, buf_fx, state_size) ||
 		    __copy_from_user(&env, buf, sizeof(env))) {
+			fpu_finit(fpu);
 			err = -1;
 		} else {
 			sanitize_restored_xstate(tsk, &env, xstate_bv, fx_only);
-			set_used_math();
 		}
 
+		set_used_math();
 		if (use_eager_fpu()) {
 			preempt_disable();
 			math_state_restore();
@@ -415,7 +416,7 @@ int __restore_xstate_sig(void __user *buf, void __user *buf_fx, int size)
 		 */
 		user_fpu_begin();
 		if (restore_user_xstate(buf_fx, xstate_bv, fx_only)) {
-			drop_init_fpu(tsk);
+			fpu_reset_state(tsk);
 			return -1;
 		}
 	}
@@ -677,19 +678,13 @@ void xsave_init(void)
 	this_func();
 }
 
-static inline void __init eager_fpu_init_bp(void)
-{
-	current->thread.fpu.state =
-	    alloc_bootmem_align(xstate_size, __alignof__(struct xsave_struct));
-	if (!init_xstate_buf)
-		setup_init_fpu_buf();
-}
-
-void eager_fpu_init(void)
+/*
+ * setup_init_fpu_buf() is __init and it is OK to call it here because
+ * init_xstate_buf will be unset only once during boot.
+ */
+void __init_refok eager_fpu_init(void)
 {
-	static __refdata void (*boot_func)(void) = eager_fpu_init_bp;
-
-	clear_used_math();
+	WARN_ON(used_math());
 	current_thread_info()->status = 0;
 
 	if (eagerfpu == ENABLE)
@@ -700,21 +695,8 @@ void eager_fpu_init(void)
 		return;
 	}
 
-	if (boot_func) {
-		boot_func();
-		boot_func = NULL;
-	}
-
-	/*
-	 * This is same as math_state_restore(). But use_xsave() is
-	 * not yet patched to use math_state_restore().
-	 */
-	init_fpu(current);
-	__thread_fpu_begin(current);
-	if (cpu_has_xsave)
-		xrstor_state(init_xstate_buf, -1);
-	else
-		fxrstor_checking(&init_xstate_buf->i387);
+	if (!init_xstate_buf)
+		setup_init_fpu_buf();
 }
 
 /*
diff --git a/arch/x86/kvm/Makefile b/arch/x86/kvm/Makefile
index 08f790d..16e8f96 100644
--- a/arch/x86/kvm/Makefile
+++ b/arch/x86/kvm/Makefile
@@ -1,5 +1,5 @@
 
-ccflags-y += -Ivirt/kvm -Iarch/x86/kvm
+ccflags-y += -Iarch/x86/kvm
 
 CFLAGS_x86.o := -I.
 CFLAGS_svm.o := -I.
diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c
index 8a80737..59b69f6 100644
--- a/arch/x86/kvm/cpuid.c
+++ b/arch/x86/kvm/cpuid.c
@@ -104,6 +104,9 @@ int kvm_update_cpuid(struct kvm_vcpu *vcpu)
 		((best->eax & 0xff00) >> 8) != 0)
 		return -EINVAL;
 
+	/* Update physical-address width */
+	vcpu->arch.maxphyaddr = cpuid_query_maxphyaddr(vcpu);
+
 	kvm_pmu_cpuid_update(vcpu);
 	return 0;
 }
@@ -135,6 +138,21 @@ static void cpuid_fix_nx_cap(struct kvm_vcpu *vcpu)
 	}
 }
 
+int cpuid_query_maxphyaddr(struct kvm_vcpu *vcpu)
+{
+	struct kvm_cpuid_entry2 *best;
+
+	best = kvm_find_cpuid_entry(vcpu, 0x80000000, 0);
+	if (!best || best->eax < 0x80000008)
+		goto not_found;
+	best = kvm_find_cpuid_entry(vcpu, 0x80000008, 0);
+	if (best)
+		return best->eax & 0xff;
+not_found:
+	return 36;
+}
+EXPORT_SYMBOL_GPL(cpuid_query_maxphyaddr);
+
 /* when an old userspace process fills a new kernel module */
 int kvm_vcpu_ioctl_set_cpuid(struct kvm_vcpu *vcpu,
 			     struct kvm_cpuid *cpuid,
@@ -757,21 +775,6 @@ struct kvm_cpuid_entry2 *kvm_find_cpuid_entry(struct kvm_vcpu *vcpu,
 }
 EXPORT_SYMBOL_GPL(kvm_find_cpuid_entry);
 
-int cpuid_maxphyaddr(struct kvm_vcpu *vcpu)
-{
-	struct kvm_cpuid_entry2 *best;
-
-	best = kvm_find_cpuid_entry(vcpu, 0x80000000, 0);
-	if (!best || best->eax < 0x80000008)
-		goto not_found;
-	best = kvm_find_cpuid_entry(vcpu, 0x80000008, 0);
-	if (best)
-		return best->eax & 0xff;
-not_found:
-	return 36;
-}
-EXPORT_SYMBOL_GPL(cpuid_maxphyaddr);
-
 /*
  * If no match is found, check whether we exceed the vCPU's limit
  * and return the content of the highest valid _standard_ leaf instead.
diff --git a/arch/x86/kvm/cpuid.h b/arch/x86/kvm/cpuid.h
index 4452eed..c3b1ad9 100644
--- a/arch/x86/kvm/cpuid.h
+++ b/arch/x86/kvm/cpuid.h
@@ -20,13 +20,19 @@ int kvm_vcpu_ioctl_get_cpuid2(struct kvm_vcpu *vcpu,
 			      struct kvm_cpuid_entry2 __user *entries);
 void kvm_cpuid(struct kvm_vcpu *vcpu, u32 *eax, u32 *ebx, u32 *ecx, u32 *edx);
 
+int cpuid_query_maxphyaddr(struct kvm_vcpu *vcpu);
+
+static inline int cpuid_maxphyaddr(struct kvm_vcpu *vcpu)
+{
+	return vcpu->arch.maxphyaddr;
+}
 
 static inline bool guest_cpuid_has_xsave(struct kvm_vcpu *vcpu)
 {
 	struct kvm_cpuid_entry2 *best;
 
 	if (!static_cpu_has(X86_FEATURE_XSAVE))
-		return 0;
+		return false;
 
 	best = kvm_find_cpuid_entry(vcpu, 1, 0);
 	return best && (best->ecx & bit(X86_FEATURE_XSAVE));
diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
index e0b794a..630bcb0 100644
--- a/arch/x86/kvm/emulate.c
+++ b/arch/x86/kvm/emulate.c
@@ -248,27 +248,7 @@ struct mode_dual {
 	struct opcode mode64;
 };
 
-/* EFLAGS bit definitions. */
-#define EFLG_ID (1<<21)
-#define EFLG_VIP (1<<20)
-#define EFLG_VIF (1<<19)
-#define EFLG_AC (1<<18)
-#define EFLG_VM (1<<17)
-#define EFLG_RF (1<<16)
-#define EFLG_IOPL (3<<12)
-#define EFLG_NT (1<<14)
-#define EFLG_OF (1<<11)
-#define EFLG_DF (1<<10)
-#define EFLG_IF (1<<9)
-#define EFLG_TF (1<<8)
-#define EFLG_SF (1<<7)
-#define EFLG_ZF (1<<6)
-#define EFLG_AF (1<<4)
-#define EFLG_PF (1<<2)
-#define EFLG_CF (1<<0)
-
 #define EFLG_RESERVED_ZEROS_MASK 0xffc0802a
-#define EFLG_RESERVED_ONE_MASK 2
 
 enum x86_transfer_type {
 	X86_TRANSFER_NONE,
@@ -317,7 +297,8 @@ static void invalidate_registers(struct x86_emulate_ctxt *ctxt)
  * These EFLAGS bits are restored from saved value during emulation, and
  * any changes are written back to the saved value after emulation.
  */
-#define EFLAGS_MASK (EFLG_OF|EFLG_SF|EFLG_ZF|EFLG_AF|EFLG_PF|EFLG_CF)
+#define EFLAGS_MASK (X86_EFLAGS_OF|X86_EFLAGS_SF|X86_EFLAGS_ZF|X86_EFLAGS_AF|\
+		     X86_EFLAGS_PF|X86_EFLAGS_CF)
 
 #ifdef CONFIG_X86_64
 #define ON64(x) x
@@ -478,6 +459,25 @@ static void assign_masked(ulong *dest, ulong src, ulong mask)
 	*dest = (*dest & ~mask) | (src & mask);
 }
 
+static void assign_register(unsigned long *reg, u64 val, int bytes)
+{
+	/* The 4-byte case *is* correct: in 64-bit mode we zero-extend. */
+	switch (bytes) {
+	case 1:
+		*(u8 *)reg = (u8)val;
+		break;
+	case 2:
+		*(u16 *)reg = (u16)val;
+		break;
+	case 4:
+		*reg = (u32)val;
+		break;	/* 64b: zero-extend */
+	case 8:
+		*reg = val;
+		break;
+	}
+}
+
 static inline unsigned long ad_mask(struct x86_emulate_ctxt *ctxt)
 {
 	return (1UL << (ctxt->ad_bytes << 3)) - 1;
@@ -943,6 +943,22 @@ FASTOP2(xadd);
 
 FASTOP2R(cmp, cmp_r);
 
+static int em_bsf_c(struct x86_emulate_ctxt *ctxt)
+{
+	/* If src is zero, do not writeback, but update flags */
+	if (ctxt->src.val == 0)
+		ctxt->dst.type = OP_NONE;
+	return fastop(ctxt, em_bsf);
+}
+
+static int em_bsr_c(struct x86_emulate_ctxt *ctxt)
+{
+	/* If src is zero, do not writeback, but update flags */
+	if (ctxt->src.val == 0)
+		ctxt->dst.type = OP_NONE;
+	return fastop(ctxt, em_bsr);
+}
+
 static u8 test_cc(unsigned int condition, unsigned long flags)
 {
 	u8 rc;
@@ -1399,7 +1415,7 @@ static int pio_in_emulated(struct x86_emulate_ctxt *ctxt,
 		unsigned int in_page, n;
 		unsigned int count = ctxt->rep_prefix ?
 			address_mask(ctxt, reg_read(ctxt, VCPU_REGS_RCX)) : 1;
-		in_page = (ctxt->eflags & EFLG_DF) ?
+		in_page = (ctxt->eflags & X86_EFLAGS_DF) ?
 			offset_in_page(reg_read(ctxt, VCPU_REGS_RDI)) :
 			PAGE_SIZE - offset_in_page(reg_read(ctxt, VCPU_REGS_RDI));
 		n = min3(in_page, (unsigned int)sizeof(rc->data) / size, count);
@@ -1412,7 +1428,7 @@ static int pio_in_emulated(struct x86_emulate_ctxt *ctxt,
 	}
 
 	if (ctxt->rep_prefix && (ctxt->d & String) &&
-	    !(ctxt->eflags & EFLG_DF)) {
+	    !(ctxt->eflags & X86_EFLAGS_DF)) {
 		ctxt->dst.data = rc->data + rc->pos;
 		ctxt->dst.type = OP_MEM_STR;
 		ctxt->dst.count = (rc->end - rc->pos) / size;
@@ -1691,21 +1707,7 @@ static int load_segment_descriptor(struct x86_emulate_ctxt *ctxt,
 
 static void write_register_operand(struct operand *op)
 {
-	/* The 4-byte case *is* correct: in 64-bit mode we zero-extend. */
-	switch (op->bytes) {
-	case 1:
-		*(u8 *)op->addr.reg = (u8)op->val;
-		break;
-	case 2:
-		*(u16 *)op->addr.reg = (u16)op->val;
-		break;
-	case 4:
-		*op->addr.reg = (u32)op->val;
-		break;	/* 64b: zero-extend */
-	case 8:
-		*op->addr.reg = op->val;
-		break;
-	}
+	return assign_register(op->addr.reg, op->val, op->bytes);
 }
 
 static int writeback(struct x86_emulate_ctxt *ctxt, struct operand *op)
@@ -1792,32 +1794,34 @@ static int emulate_popf(struct x86_emulate_ctxt *ctxt,
 {
 	int rc;
 	unsigned long val, change_mask;
-	int iopl = (ctxt->eflags & X86_EFLAGS_IOPL) >> IOPL_SHIFT;
+	int iopl = (ctxt->eflags & X86_EFLAGS_IOPL) >> X86_EFLAGS_IOPL_BIT;
 	int cpl = ctxt->ops->cpl(ctxt);
 
 	rc = emulate_pop(ctxt, &val, len);
 	if (rc != X86EMUL_CONTINUE)
 		return rc;
 
-	change_mask = EFLG_CF | EFLG_PF | EFLG_AF | EFLG_ZF | EFLG_SF | EFLG_OF
-		| EFLG_TF | EFLG_DF | EFLG_NT | EFLG_AC | EFLG_ID;
+	change_mask = X86_EFLAGS_CF | X86_EFLAGS_PF | X86_EFLAGS_AF |
+		      X86_EFLAGS_ZF | X86_EFLAGS_SF | X86_EFLAGS_OF |
+		      X86_EFLAGS_TF | X86_EFLAGS_DF | X86_EFLAGS_NT |
+		      X86_EFLAGS_AC | X86_EFLAGS_ID;
 
 	switch(ctxt->mode) {
 	case X86EMUL_MODE_PROT64:
 	case X86EMUL_MODE_PROT32:
 	case X86EMUL_MODE_PROT16:
 		if (cpl == 0)
-			change_mask |= EFLG_IOPL;
+			change_mask |= X86_EFLAGS_IOPL;
 		if (cpl <= iopl)
-			change_mask |= EFLG_IF;
+			change_mask |= X86_EFLAGS_IF;
 		break;
 	case X86EMUL_MODE_VM86:
 		if (iopl < 3)
 			return emulate_gp(ctxt, 0);
-		change_mask |= EFLG_IF;
+		change_mask |= X86_EFLAGS_IF;
 		break;
 	default: /* real mode */
-		change_mask |= (EFLG_IOPL | EFLG_IF);
+		change_mask |= (X86_EFLAGS_IOPL | X86_EFLAGS_IF);
 		break;
 	}
 
@@ -1918,7 +1922,7 @@ static int em_pusha(struct x86_emulate_ctxt *ctxt)
 
 static int em_pushf(struct x86_emulate_ctxt *ctxt)
 {
-	ctxt->src.val = (unsigned long)ctxt->eflags & ~EFLG_VM;
+	ctxt->src.val = (unsigned long)ctxt->eflags & ~X86_EFLAGS_VM;
 	return em_push(ctxt);
 }
 
@@ -1926,6 +1930,7 @@ static int em_popa(struct x86_emulate_ctxt *ctxt)
 {
 	int rc = X86EMUL_CONTINUE;
 	int reg = VCPU_REGS_RDI;
+	u32 val;
 
 	while (reg >= VCPU_REGS_RAX) {
 		if (reg == VCPU_REGS_RSP) {
@@ -1933,9 +1938,10 @@ static int em_popa(struct x86_emulate_ctxt *ctxt)
 			--reg;
 		}
 
-		rc = emulate_pop(ctxt, reg_rmw(ctxt, reg), ctxt->op_bytes);
+		rc = emulate_pop(ctxt, &val, ctxt->op_bytes);
 		if (rc != X86EMUL_CONTINUE)
 			break;
+		assign_register(reg_rmw(ctxt, reg), val, ctxt->op_bytes);
 		--reg;
 	}
 	return rc;
@@ -1956,7 +1962,7 @@ static int __emulate_int_real(struct x86_emulate_ctxt *ctxt, int irq)
 	if (rc != X86EMUL_CONTINUE)
 		return rc;
 
-	ctxt->eflags &= ~(EFLG_IF | EFLG_TF | EFLG_AC);
+	ctxt->eflags &= ~(X86_EFLAGS_IF | X86_EFLAGS_TF | X86_EFLAGS_AC);
 
 	ctxt->src.val = get_segment_selector(ctxt, VCPU_SREG_CS);
 	rc = em_push(ctxt);
@@ -2022,10 +2028,14 @@ static int emulate_iret_real(struct x86_emulate_ctxt *ctxt)
 	unsigned long temp_eip = 0;
 	unsigned long temp_eflags = 0;
 	unsigned long cs = 0;
-	unsigned long mask = EFLG_CF | EFLG_PF | EFLG_AF | EFLG_ZF | EFLG_SF | EFLG_TF |
-			     EFLG_IF | EFLG_DF | EFLG_OF | EFLG_IOPL | EFLG_NT | EFLG_RF |
-			     EFLG_AC | EFLG_ID | (1 << 1); /* Last one is the reserved bit */
-	unsigned long vm86_mask = EFLG_VM | EFLG_VIF | EFLG_VIP;
+	unsigned long mask = X86_EFLAGS_CF | X86_EFLAGS_PF | X86_EFLAGS_AF |
+			     X86_EFLAGS_ZF | X86_EFLAGS_SF | X86_EFLAGS_TF |
+			     X86_EFLAGS_IF | X86_EFLAGS_DF | X86_EFLAGS_OF |
+			     X86_EFLAGS_IOPL | X86_EFLAGS_NT | X86_EFLAGS_RF |
+			     X86_EFLAGS_AC | X86_EFLAGS_ID |
+			     X86_EFLAGS_FIXED;
+	unsigned long vm86_mask = X86_EFLAGS_VM | X86_EFLAGS_VIF |
+				  X86_EFLAGS_VIP;
 
 	/* TODO: Add stack limit check */
 
@@ -2054,7 +2064,6 @@ static int emulate_iret_real(struct x86_emulate_ctxt *ctxt)
 
 	ctxt->_eip = temp_eip;
 
-
 	if (ctxt->op_bytes == 4)
 		ctxt->eflags = ((temp_eflags & mask) | (ctxt->eflags & vm86_mask));
 	else if (ctxt->op_bytes == 2) {
@@ -2063,7 +2072,7 @@ static int emulate_iret_real(struct x86_emulate_ctxt *ctxt)
 	}
 
 	ctxt->eflags &= ~EFLG_RESERVED_ZEROS_MASK; /* Clear reserved zeros */
-	ctxt->eflags |= EFLG_RESERVED_ONE_MASK;
+	ctxt->eflags |= X86_EFLAGS_FIXED;
 	ctxt->ops->set_nmi_mask(ctxt, false);
 
 	return rc;
@@ -2145,12 +2154,12 @@ static int em_cmpxchg8b(struct x86_emulate_ctxt *ctxt)
 	    ((u32) (old >> 32) != (u32) reg_read(ctxt, VCPU_REGS_RDX))) {
 		*reg_write(ctxt, VCPU_REGS_RAX) = (u32) (old >> 0);
 		*reg_write(ctxt, VCPU_REGS_RDX) = (u32) (old >> 32);
-		ctxt->eflags &= ~EFLG_ZF;
+		ctxt->eflags &= ~X86_EFLAGS_ZF;
 	} else {
 		ctxt->dst.val64 = ((u64)reg_read(ctxt, VCPU_REGS_RCX) << 32) |
 			(u32) reg_read(ctxt, VCPU_REGS_RBX);
 
-		ctxt->eflags |= EFLG_ZF;
+		ctxt->eflags |= X86_EFLAGS_ZF;
 	}
 	return X86EMUL_CONTINUE;
 }
@@ -2222,7 +2231,7 @@ static int em_cmpxchg(struct x86_emulate_ctxt *ctxt)
 	ctxt->src.val = ctxt->dst.orig_val;
 	fastop(ctxt, em_cmp);
 
-	if (ctxt->eflags & EFLG_ZF) {
+	if (ctxt->eflags & X86_EFLAGS_ZF) {
 		/* Success: write back to memory; no update of EAX */
 		ctxt->src.type = OP_NONE;
 		ctxt->dst.val = ctxt->src.orig_val;
@@ -2381,14 +2390,14 @@ static int em_syscall(struct x86_emulate_ctxt *ctxt)
 
 		ops->get_msr(ctxt, MSR_SYSCALL_MASK, &msr_data);
 		ctxt->eflags &= ~msr_data;
-		ctxt->eflags |= EFLG_RESERVED_ONE_MASK;
+		ctxt->eflags |= X86_EFLAGS_FIXED;
 #endif
 	} else {
 		/* legacy mode */
 		ops->get_msr(ctxt, MSR_STAR, &msr_data);
 		ctxt->_eip = (u32)msr_data;
 
-		ctxt->eflags &= ~(EFLG_VM | EFLG_IF);
+		ctxt->eflags &= ~(X86_EFLAGS_VM | X86_EFLAGS_IF);
 	}
 
 	return X86EMUL_CONTINUE;
@@ -2425,8 +2434,8 @@ static int em_sysenter(struct x86_emulate_ctxt *ctxt)
 	if ((msr_data & 0xfffc) == 0x0)
 		return emulate_gp(ctxt, 0);
 
-	ctxt->eflags &= ~(EFLG_VM | EFLG_IF);
-	cs_sel = (u16)msr_data & ~SELECTOR_RPL_MASK;
+	ctxt->eflags &= ~(X86_EFLAGS_VM | X86_EFLAGS_IF);
+	cs_sel = (u16)msr_data & ~SEGMENT_RPL_MASK;
 	ss_sel = cs_sel + 8;
 	if (efer & EFER_LMA) {
 		cs.d = 0;
@@ -2493,8 +2502,8 @@ static int em_sysexit(struct x86_emulate_ctxt *ctxt)
 			return emulate_gp(ctxt, 0);
 		break;
 	}
-	cs_sel |= SELECTOR_RPL_MASK;
-	ss_sel |= SELECTOR_RPL_MASK;
+	cs_sel |= SEGMENT_RPL_MASK;
+	ss_sel |= SEGMENT_RPL_MASK;
 
 	ops->set_segment(ctxt, cs_sel, &cs, 0, VCPU_SREG_CS);
 	ops->set_segment(ctxt, ss_sel, &ss, 0, VCPU_SREG_SS);
@@ -2512,7 +2521,7 @@ static bool emulator_bad_iopl(struct x86_emulate_ctxt *ctxt)
 		return false;
 	if (ctxt->mode == X86EMUL_MODE_VM86)
 		return true;
-	iopl = (ctxt->eflags & X86_EFLAGS_IOPL) >> IOPL_SHIFT;
+	iopl = (ctxt->eflags & X86_EFLAGS_IOPL) >> X86_EFLAGS_IOPL_BIT;
 	return ctxt->ops->cpl(ctxt) > iopl;
 }
 
@@ -2782,10 +2791,8 @@ static int load_state_from_tss32(struct x86_emulate_ctxt *ctxt,
 		return ret;
 	ret = __load_segment_descriptor(ctxt, tss->gs, VCPU_SREG_GS, cpl,
 					X86_TRANSFER_TASK_SWITCH, NULL);
-	if (ret != X86EMUL_CONTINUE)
-		return ret;
 
-	return X86EMUL_CONTINUE;
+	return ret;
 }
 
 static int task_switch_32(struct x86_emulate_ctxt *ctxt,
@@ -2954,7 +2961,7 @@ int emulator_task_switch(struct x86_emulate_ctxt *ctxt,
 static void string_addr_inc(struct x86_emulate_ctxt *ctxt, int reg,
 		struct operand *op)
 {
-	int df = (ctxt->eflags & EFLG_DF) ? -op->count : op->count;
+	int df = (ctxt->eflags & X86_EFLAGS_DF) ? -op->count : op->count;
 
 	register_address_increment(ctxt, reg, df * op->bytes);
 	op->addr.mem.ea = register_address(ctxt, reg);
@@ -3323,7 +3330,7 @@ static int em_clts(struct x86_emulate_ctxt *ctxt)
 	return X86EMUL_CONTINUE;
 }
 
-static int em_vmcall(struct x86_emulate_ctxt *ctxt)
+static int em_hypercall(struct x86_emulate_ctxt *ctxt)
 {
 	int rc = ctxt->ops->fix_hypercall(ctxt);
 
@@ -3395,17 +3402,6 @@ static int em_lgdt(struct x86_emulate_ctxt *ctxt)
 	return em_lgdt_lidt(ctxt, true);
 }
 
-static int em_vmmcall(struct x86_emulate_ctxt *ctxt)
-{
-	int rc;
-
-	rc = ctxt->ops->fix_hypercall(ctxt);
-
-	/* Disable writeback. */
-	ctxt->dst.type = OP_NONE;
-	return rc;
-}
-
 static int em_lidt(struct x86_emulate_ctxt *ctxt)
 {
 	return em_lgdt_lidt(ctxt, false);
@@ -3504,7 +3500,8 @@ static int em_sahf(struct x86_emulate_ctxt *ctxt)
 {
 	u32 flags;
 
-	flags = EFLG_CF | EFLG_PF | EFLG_AF | EFLG_ZF | EFLG_SF;
+	flags = X86_EFLAGS_CF | X86_EFLAGS_PF | X86_EFLAGS_AF | X86_EFLAGS_ZF |
+		X86_EFLAGS_SF;
 	flags &= *reg_rmw(ctxt, VCPU_REGS_RAX) >> 8;
 
 	ctxt->eflags &= ~0xffUL;
@@ -3769,7 +3766,7 @@ static int check_perm_out(struct x86_emulate_ctxt *ctxt)
 
 static const struct opcode group7_rm0[] = {
 	N,
-	I(SrcNone | Priv | EmulateOnUD,	em_vmcall),
+	I(SrcNone | Priv | EmulateOnUD,	em_hypercall),
 	N, N, N, N, N, N,
 };
 
@@ -3781,7 +3778,7 @@ static const struct opcode group7_rm1[] = {
 
 static const struct opcode group7_rm3[] = {
 	DIP(SrcNone | Prot | Priv,		vmrun,		check_svme_pa),
-	II(SrcNone  | Prot | EmulateOnUD,	em_vmmcall,	vmmcall),
+	II(SrcNone  | Prot | EmulateOnUD,	em_hypercall,	vmmcall),
 	DIP(SrcNone | Prot | Priv,		vmload,		check_svme_pa),
 	DIP(SrcNone | Prot | Priv,		vmsave,		check_svme_pa),
 	DIP(SrcNone | Prot | Priv,		stgi,		check_svme),
@@ -4192,7 +4189,8 @@ static const struct opcode twobyte_table[256] = {
 	N, N,
 	G(BitOp, group8),
 	F(DstMem | SrcReg | ModRM | BitOp | Lock | PageTable, em_btc),
-	F(DstReg | SrcMem | ModRM, em_bsf), F(DstReg | SrcMem | ModRM, em_bsr),
+	I(DstReg | SrcMem | ModRM, em_bsf_c),
+	I(DstReg | SrcMem | ModRM, em_bsr_c),
 	D(DstReg | SrcMem8 | ModRM | Mov), D(DstReg | SrcMem16 | ModRM | Mov),
 	/* 0xC0 - 0xC7 */
 	F2bv(DstMem | SrcReg | ModRM | SrcWrite | Lock, em_xadd),
@@ -4759,9 +4757,9 @@ static bool string_insn_completed(struct x86_emulate_ctxt *ctxt)
 	if (((ctxt->b == 0xa6) || (ctxt->b == 0xa7) ||
 	     (ctxt->b == 0xae) || (ctxt->b == 0xaf))
 	    && (((ctxt->rep_prefix == REPE_PREFIX) &&
-		 ((ctxt->eflags & EFLG_ZF) == 0))
+		 ((ctxt->eflags & X86_EFLAGS_ZF) == 0))
 		|| ((ctxt->rep_prefix == REPNE_PREFIX) &&
-		    ((ctxt->eflags & EFLG_ZF) == EFLG_ZF))))
+		    ((ctxt->eflags & X86_EFLAGS_ZF) == X86_EFLAGS_ZF))))
 		return true;
 
 	return false;
@@ -4913,7 +4911,7 @@ int x86_emulate_insn(struct x86_emulate_ctxt *ctxt)
 			/* All REP prefixes have the same first termination condition */
 			if (address_mask(ctxt, reg_read(ctxt, VCPU_REGS_RCX)) == 0) {
 				ctxt->eip = ctxt->_eip;
-				ctxt->eflags &= ~EFLG_RF;
+				ctxt->eflags &= ~X86_EFLAGS_RF;
 				goto done;
 			}
 		}
@@ -4950,7 +4948,8 @@ int x86_emulate_insn(struct x86_emulate_ctxt *ctxt)
 			goto done;
 		}
 	}
-	ctxt->dst.orig_val = ctxt->dst.val;
+	/* Copy full 64-bit value for CMPXCHG8B.  */
+	ctxt->dst.orig_val64 = ctxt->dst.val64;
 
 special_insn:
 
@@ -4962,9 +4961,9 @@ special_insn:
 	}
 
 	if (ctxt->rep_prefix && (ctxt->d & String))
-		ctxt->eflags |= EFLG_RF;
+		ctxt->eflags |= X86_EFLAGS_RF;
 	else
-		ctxt->eflags &= ~EFLG_RF;
+		ctxt->eflags &= ~X86_EFLAGS_RF;
 
 	if (ctxt->execute) {
 		if (ctxt->d & Fastop) {
@@ -5013,7 +5012,7 @@ special_insn:
 		rc = emulate_int(ctxt, ctxt->src.val);
 		break;
 	case 0xce:		/* into */
-		if (ctxt->eflags & EFLG_OF)
+		if (ctxt->eflags & X86_EFLAGS_OF)
 			rc = emulate_int(ctxt, 4);
 		break;
 	case 0xe9: /* jmp rel */
@@ -5026,19 +5025,19 @@ special_insn:
 		break;
 	case 0xf5:	/* cmc */
 		/* complement carry flag from eflags reg */
-		ctxt->eflags ^= EFLG_CF;
+		ctxt->eflags ^= X86_EFLAGS_CF;
 		break;
 	case 0xf8: /* clc */
-		ctxt->eflags &= ~EFLG_CF;
+		ctxt->eflags &= ~X86_EFLAGS_CF;
 		break;
 	case 0xf9: /* stc */
-		ctxt->eflags |= EFLG_CF;
+		ctxt->eflags |= X86_EFLAGS_CF;
 		break;
 	case 0xfc: /* cld */
-		ctxt->eflags &= ~EFLG_DF;
+		ctxt->eflags &= ~X86_EFLAGS_DF;
 		break;
 	case 0xfd: /* std */
-		ctxt->eflags |= EFLG_DF;
+		ctxt->eflags |= X86_EFLAGS_DF;
 		break;
 	default:
 		goto cannot_emulate;
@@ -5099,7 +5098,7 @@ writeback:
 			}
 			goto done; /* skip rip writeback */
 		}
-		ctxt->eflags &= ~EFLG_RF;
+		ctxt->eflags &= ~X86_EFLAGS_RF;
 	}
 
 	ctxt->eip = ctxt->_eip;
@@ -5136,8 +5135,7 @@ twobyte_insn:
 	case 0x40 ... 0x4f:	/* cmov */
 		if (test_cc(ctxt->b, ctxt->eflags))
 			ctxt->dst.val = ctxt->src.val;
-		else if (ctxt->mode != X86EMUL_MODE_PROT64 ||
-			 ctxt->op_bytes != 4)
+		else if (ctxt->op_bytes != 4)
 			ctxt->dst.type = OP_NONE; /* no writeback */
 		break;
 	case 0x80 ... 0x8f: /* jnz rel, etc*/
diff --git a/arch/x86/kvm/i8254.c b/arch/x86/kvm/i8254.c
index 298781d..4dce6f8 100644
--- a/arch/x86/kvm/i8254.c
+++ b/arch/x86/kvm/i8254.c
@@ -443,7 +443,8 @@ static inline int pit_in_range(gpa_t addr)
 		(addr < KVM_PIT_BASE_ADDRESS + KVM_PIT_MEM_LENGTH));
 }
 
-static int pit_ioport_write(struct kvm_io_device *this,
+static int pit_ioport_write(struct kvm_vcpu *vcpu,
+				struct kvm_io_device *this,
 			    gpa_t addr, int len, const void *data)
 {
 	struct kvm_pit *pit = dev_to_pit(this);
@@ -519,7 +520,8 @@ static int pit_ioport_write(struct kvm_io_device *this,
 	return 0;
 }
 
-static int pit_ioport_read(struct kvm_io_device *this,
+static int pit_ioport_read(struct kvm_vcpu *vcpu,
+			   struct kvm_io_device *this,
 			   gpa_t addr, int len, void *data)
 {
 	struct kvm_pit *pit = dev_to_pit(this);
@@ -589,7 +591,8 @@ static int pit_ioport_read(struct kvm_io_device *this,
 	return 0;
 }
 
-static int speaker_ioport_write(struct kvm_io_device *this,
+static int speaker_ioport_write(struct kvm_vcpu *vcpu,
+				struct kvm_io_device *this,
 				gpa_t addr, int len, const void *data)
 {
 	struct kvm_pit *pit = speaker_to_pit(this);
@@ -606,8 +609,9 @@ static int speaker_ioport_write(struct kvm_io_device *this,
 	return 0;
 }
 
-static int speaker_ioport_read(struct kvm_io_device *this,
-			       gpa_t addr, int len, void *data)
+static int speaker_ioport_read(struct kvm_vcpu *vcpu,
+				   struct kvm_io_device *this,
+				   gpa_t addr, int len, void *data)
 {
 	struct kvm_pit *pit = speaker_to_pit(this);
 	struct kvm_kpit_state *pit_state = &pit->pit_state;
diff --git a/arch/x86/kvm/i8254.h b/arch/x86/kvm/i8254.h
index dd1b16b..c84990b 100644
--- a/arch/x86/kvm/i8254.h
+++ b/arch/x86/kvm/i8254.h
@@ -3,7 +3,7 @@
 
 #include <linux/kthread.h>
 
-#include "iodev.h"
+#include <kvm/iodev.h>
 
 struct kvm_kpit_channel_state {
 	u32 count; /* can be 65536 */
diff --git a/arch/x86/kvm/i8259.c b/arch/x86/kvm/i8259.c
index cc31f7c..fef922f 100644
--- a/arch/x86/kvm/i8259.c
+++ b/arch/x86/kvm/i8259.c
@@ -507,6 +507,7 @@ static int picdev_read(struct kvm_pic *s,
 		return -EOPNOTSUPP;
 
 	if (len != 1) {
+		memset(val, 0, len);
 		pr_pic_unimpl("non byte read\n");
 		return 0;
 	}
@@ -528,42 +529,42 @@ static int picdev_read(struct kvm_pic *s,
 	return 0;
 }
 
-static int picdev_master_write(struct kvm_io_device *dev,
+static int picdev_master_write(struct kvm_vcpu *vcpu, struct kvm_io_device *dev,
 			       gpa_t addr, int len, const void *val)
 {
 	return picdev_write(container_of(dev, struct kvm_pic, dev_master),
 			    addr, len, val);
 }
 
-static int picdev_master_read(struct kvm_io_device *dev,
+static int picdev_master_read(struct kvm_vcpu *vcpu, struct kvm_io_device *dev,
 			      gpa_t addr, int len, void *val)
 {
 	return picdev_read(container_of(dev, struct kvm_pic, dev_master),
 			    addr, len, val);
 }
 
-static int picdev_slave_write(struct kvm_io_device *dev,
+static int picdev_slave_write(struct kvm_vcpu *vcpu, struct kvm_io_device *dev,
 			      gpa_t addr, int len, const void *val)
 {
 	return picdev_write(container_of(dev, struct kvm_pic, dev_slave),
 			    addr, len, val);
 }
 
-static int picdev_slave_read(struct kvm_io_device *dev,
+static int picdev_slave_read(struct kvm_vcpu *vcpu, struct kvm_io_device *dev,
 			     gpa_t addr, int len, void *val)
 {
 	return picdev_read(container_of(dev, struct kvm_pic, dev_slave),
 			    addr, len, val);
 }
 
-static int picdev_eclr_write(struct kvm_io_device *dev,
+static int picdev_eclr_write(struct kvm_vcpu *vcpu, struct kvm_io_device *dev,
 			     gpa_t addr, int len, const void *val)
 {
 	return picdev_write(container_of(dev, struct kvm_pic, dev_eclr),
 			    addr, len, val);
 }
 
-static int picdev_eclr_read(struct kvm_io_device *dev,
+static int picdev_eclr_read(struct kvm_vcpu *vcpu, struct kvm_io_device *dev,
 			    gpa_t addr, int len, void *val)
 {
 	return picdev_read(container_of(dev, struct kvm_pic, dev_eclr),
diff --git a/arch/x86/kvm/ioapic.c b/arch/x86/kvm/ioapic.c
index b1947e0..28146f0 100644
--- a/arch/x86/kvm/ioapic.c
+++ b/arch/x86/kvm/ioapic.c
@@ -206,6 +206,8 @@ static int ioapic_set_irq(struct kvm_ioapic *ioapic, unsigned int irq,
 
 	old_irr = ioapic->irr;
 	ioapic->irr |= mask;
+	if (edge)
+		ioapic->irr_delivered &= ~mask;
 	if ((edge && old_irr == ioapic->irr) ||
 	    (!edge && entry.fields.remote_irr)) {
 		ret = 0;
@@ -349,7 +351,7 @@ static int ioapic_service(struct kvm_ioapic *ioapic, int irq, bool line_status)
 	irqe.shorthand = 0;
 
 	if (irqe.trig_mode == IOAPIC_EDGE_TRIG)
-		ioapic->irr &= ~(1 << irq);
+		ioapic->irr_delivered |= 1 << irq;
 
 	if (irq == RTC_GSI && line_status) {
 		/*
@@ -422,6 +424,7 @@ static void __kvm_ioapic_update_eoi(struct kvm_vcpu *vcpu,
 			struct kvm_ioapic *ioapic, int vector, int trigger_mode)
 {
 	int i;
+	struct kvm_lapic *apic = vcpu->arch.apic;
 
 	for (i = 0; i < IOAPIC_NUM_PINS; i++) {
 		union kvm_ioapic_redirect_entry *ent = &ioapic->redirtbl[i];
@@ -443,7 +446,8 @@ static void __kvm_ioapic_update_eoi(struct kvm_vcpu *vcpu,
 		kvm_notify_acked_irq(ioapic->kvm, KVM_IRQCHIP_IOAPIC, i);
 		spin_lock(&ioapic->lock);
 
-		if (trigger_mode != IOAPIC_LEVEL_TRIG)
+		if (trigger_mode != IOAPIC_LEVEL_TRIG ||
+		    kvm_apic_get_reg(apic, APIC_SPIV) & APIC_SPIV_DIRECTED_EOI)
 			continue;
 
 		ASSERT(ent->fields.trig_mode == IOAPIC_LEVEL_TRIG);
@@ -471,13 +475,6 @@ static void __kvm_ioapic_update_eoi(struct kvm_vcpu *vcpu,
 	}
 }
 
-bool kvm_ioapic_handles_vector(struct kvm *kvm, int vector)
-{
-	struct kvm_ioapic *ioapic = kvm->arch.vioapic;
-	smp_rmb();
-	return test_bit(vector, ioapic->handled_vectors);
-}
-
 void kvm_ioapic_update_eoi(struct kvm_vcpu *vcpu, int vector, int trigger_mode)
 {
 	struct kvm_ioapic *ioapic = vcpu->kvm->arch.vioapic;
@@ -498,8 +495,8 @@ static inline int ioapic_in_range(struct kvm_ioapic *ioapic, gpa_t addr)
 		 (addr < ioapic->base_address + IOAPIC_MEM_LENGTH)));
 }
 
-static int ioapic_mmio_read(struct kvm_io_device *this, gpa_t addr, int len,
-			    void *val)
+static int ioapic_mmio_read(struct kvm_vcpu *vcpu, struct kvm_io_device *this,
+				gpa_t addr, int len, void *val)
 {
 	struct kvm_ioapic *ioapic = to_ioapic(this);
 	u32 result;
@@ -541,8 +538,8 @@ static int ioapic_mmio_read(struct kvm_io_device *this, gpa_t addr, int len,
 	return 0;
 }
 
-static int ioapic_mmio_write(struct kvm_io_device *this, gpa_t addr, int len,
-			     const void *val)
+static int ioapic_mmio_write(struct kvm_vcpu *vcpu, struct kvm_io_device *this,
+				 gpa_t addr, int len, const void *val)
 {
 	struct kvm_ioapic *ioapic = to_ioapic(this);
 	u32 data;
@@ -597,6 +594,7 @@ static void kvm_ioapic_reset(struct kvm_ioapic *ioapic)
 	ioapic->base_address = IOAPIC_DEFAULT_BASE_ADDRESS;
 	ioapic->ioregsel = 0;
 	ioapic->irr = 0;
+	ioapic->irr_delivered = 0;
 	ioapic->id = 0;
 	memset(ioapic->irq_eoi, 0x00, IOAPIC_NUM_PINS);
 	rtc_irq_eoi_tracking_reset(ioapic);
@@ -654,6 +652,7 @@ int kvm_get_ioapic(struct kvm *kvm, struct kvm_ioapic_state *state)
 
 	spin_lock(&ioapic->lock);
 	memcpy(state, ioapic, sizeof(struct kvm_ioapic_state));
+	state->irr &= ~ioapic->irr_delivered;
 	spin_unlock(&ioapic->lock);
 	return 0;
 }
@@ -667,6 +666,7 @@ int kvm_set_ioapic(struct kvm *kvm, struct kvm_ioapic_state *state)
 	spin_lock(&ioapic->lock);
 	memcpy(ioapic, state, sizeof(struct kvm_ioapic_state));
 	ioapic->irr = 0;
+	ioapic->irr_delivered = 0;
 	update_handled_vectors(ioapic);
 	kvm_vcpu_request_scan_ioapic(kvm);
 	kvm_ioapic_inject_all(ioapic, state->irr);
diff --git a/arch/x86/kvm/ioapic.h b/arch/x86/kvm/ioapic.h
index c2e36d9..ca0b0b4 100644
--- a/arch/x86/kvm/ioapic.h
+++ b/arch/x86/kvm/ioapic.h
@@ -3,7 +3,7 @@
 
 #include <linux/kvm_host.h>
 
-#include "iodev.h"
+#include <kvm/iodev.h>
 
 struct kvm;
 struct kvm_vcpu;
@@ -77,6 +77,7 @@ struct kvm_ioapic {
 	struct rtc_status rtc_status;
 	struct delayed_work eoi_inject;
 	u32 irq_eoi[IOAPIC_NUM_PINS];
+	u32 irr_delivered;
 };
 
 #ifdef DEBUG
@@ -97,13 +98,19 @@ static inline struct kvm_ioapic *ioapic_irqchip(struct kvm *kvm)
 	return kvm->arch.vioapic;
 }
 
+static inline bool kvm_ioapic_handles_vector(struct kvm *kvm, int vector)
+{
+	struct kvm_ioapic *ioapic = kvm->arch.vioapic;
+	smp_rmb();
+	return test_bit(vector, ioapic->handled_vectors);
+}
+
 void kvm_rtc_eoi_tracking_restore_one(struct kvm_vcpu *vcpu);
 bool kvm_apic_match_dest(struct kvm_vcpu *vcpu, struct kvm_lapic *source,
 		int short_hand, unsigned int dest, int dest_mode);
 int kvm_apic_compare_prio(struct kvm_vcpu *vcpu1, struct kvm_vcpu *vcpu2);
 void kvm_ioapic_update_eoi(struct kvm_vcpu *vcpu, int vector,
 			int trigger_mode);
-bool kvm_ioapic_handles_vector(struct kvm *kvm, int vector);
 int kvm_ioapic_init(struct kvm *kvm);
 void kvm_ioapic_destroy(struct kvm *kvm);
 int kvm_ioapic_set_irq(struct kvm_ioapic *ioapic, int irq, int irq_source_id,
diff --git a/arch/x86/kvm/irq.h b/arch/x86/kvm/irq.h
index 2d03568..ad68c73 100644
--- a/arch/x86/kvm/irq.h
+++ b/arch/x86/kvm/irq.h
@@ -27,7 +27,7 @@
 #include <linux/kvm_host.h>
 #include <linux/spinlock.h>
 
-#include "iodev.h"
+#include <kvm/iodev.h>
 #include "ioapic.h"
 #include "lapic.h"
 
diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
index e55b5fc..d67206a 100644
--- a/arch/x86/kvm/lapic.c
+++ b/arch/x86/kvm/lapic.c
@@ -133,6 +133,28 @@ static inline int kvm_apic_id(struct kvm_lapic *apic)
 	return (kvm_apic_get_reg(apic, APIC_ID) >> 24) & 0xff;
 }
 
+/* The logical map is definitely wrong if we have multiple
+ * modes at the same time.  (Physical map is always right.)
+ */
+static inline bool kvm_apic_logical_map_valid(struct kvm_apic_map *map)
+{
+	return !(map->mode & (map->mode - 1));
+}
+
+static inline void
+apic_logical_id(struct kvm_apic_map *map, u32 dest_id, u16 *cid, u16 *lid)
+{
+	unsigned lid_bits;
+
+	BUILD_BUG_ON(KVM_APIC_MODE_XAPIC_CLUSTER !=  4);
+	BUILD_BUG_ON(KVM_APIC_MODE_XAPIC_FLAT    !=  8);
+	BUILD_BUG_ON(KVM_APIC_MODE_X2APIC        != 16);
+	lid_bits = map->mode;
+
+	*cid = dest_id >> lid_bits;
+	*lid = dest_id & ((1 << lid_bits) - 1);
+}
+
 static void recalculate_apic_map(struct kvm *kvm)
 {
 	struct kvm_apic_map *new, *old = NULL;
@@ -146,48 +168,6 @@ static void recalculate_apic_map(struct kvm *kvm)
 	if (!new)
 		goto out;
 
-	new->ldr_bits = 8;
-	/* flat mode is default */
-	new->cid_shift = 8;
-	new->cid_mask = 0;
-	new->lid_mask = 0xff;
-	new->broadcast = APIC_BROADCAST;
-
-	kvm_for_each_vcpu(i, vcpu, kvm) {
-		struct kvm_lapic *apic = vcpu->arch.apic;
-
-		if (!kvm_apic_present(vcpu))
-			continue;
-
-		if (apic_x2apic_mode(apic)) {
-			new->ldr_bits = 32;
-			new->cid_shift = 16;
-			new->cid_mask = new->lid_mask = 0xffff;
-			new->broadcast = X2APIC_BROADCAST;
-		} else if (kvm_apic_get_reg(apic, APIC_LDR)) {
-			if (kvm_apic_get_reg(apic, APIC_DFR) ==
-							APIC_DFR_CLUSTER) {
-				new->cid_shift = 4;
-				new->cid_mask = 0xf;
-				new->lid_mask = 0xf;
-			} else {
-				new->cid_shift = 8;
-				new->cid_mask = 0;
-				new->lid_mask = 0xff;
-			}
-		}
-
-		/*
-		 * All APICs have to be configured in the same mode by an OS.
-		 * We take advatage of this while building logical id loockup
-		 * table. After reset APICs are in software disabled mode, so if
-		 * we find apic with different setting we assume this is the mode
-		 * OS wants all apics to be in; build lookup table accordingly.
-		 */
-		if (kvm_apic_sw_enabled(apic))
-			break;
-	}
-
 	kvm_for_each_vcpu(i, vcpu, kvm) {
 		struct kvm_lapic *apic = vcpu->arch.apic;
 		u16 cid, lid;
@@ -198,11 +178,25 @@ static void recalculate_apic_map(struct kvm *kvm)
 
 		aid = kvm_apic_id(apic);
 		ldr = kvm_apic_get_reg(apic, APIC_LDR);
-		cid = apic_cluster_id(new, ldr);
-		lid = apic_logical_id(new, ldr);
 
 		if (aid < ARRAY_SIZE(new->phys_map))
 			new->phys_map[aid] = apic;
+
+		if (apic_x2apic_mode(apic)) {
+			new->mode |= KVM_APIC_MODE_X2APIC;
+		} else if (ldr) {
+			ldr = GET_APIC_LOGICAL_ID(ldr);
+			if (kvm_apic_get_reg(apic, APIC_DFR) == APIC_DFR_FLAT)
+				new->mode |= KVM_APIC_MODE_XAPIC_FLAT;
+			else
+				new->mode |= KVM_APIC_MODE_XAPIC_CLUSTER;
+		}
+
+		if (!kvm_apic_logical_map_valid(new))
+			continue;
+
+		apic_logical_id(new, ldr, &cid, &lid);
+
 		if (lid && cid < ARRAY_SIZE(new->logical_map))
 			new->logical_map[cid][ffs(lid) - 1] = apic;
 	}
@@ -588,15 +582,23 @@ static void apic_set_tpr(struct kvm_lapic *apic, u32 tpr)
 	apic_update_ppr(apic);
 }
 
-static bool kvm_apic_broadcast(struct kvm_lapic *apic, u32 dest)
+static bool kvm_apic_broadcast(struct kvm_lapic *apic, u32 mda)
 {
-	return dest == (apic_x2apic_mode(apic) ?
-			X2APIC_BROADCAST : APIC_BROADCAST);
+	if (apic_x2apic_mode(apic))
+		return mda == X2APIC_BROADCAST;
+
+	return GET_APIC_DEST_FIELD(mda) == APIC_BROADCAST;
 }
 
-static bool kvm_apic_match_physical_addr(struct kvm_lapic *apic, u32 dest)
+static bool kvm_apic_match_physical_addr(struct kvm_lapic *apic, u32 mda)
 {
-	return kvm_apic_id(apic) == dest || kvm_apic_broadcast(apic, dest);
+	if (kvm_apic_broadcast(apic, mda))
+		return true;
+
+	if (apic_x2apic_mode(apic))
+		return mda == kvm_apic_id(apic);
+
+	return mda == SET_APIC_DEST_FIELD(kvm_apic_id(apic));
 }
 
 static bool kvm_apic_match_logical_addr(struct kvm_lapic *apic, u32 mda)
@@ -613,6 +615,7 @@ static bool kvm_apic_match_logical_addr(struct kvm_lapic *apic, u32 mda)
 		       && (logical_id & mda & 0xffff) != 0;
 
 	logical_id = GET_APIC_LOGICAL_ID(logical_id);
+	mda = GET_APIC_DEST_FIELD(mda);
 
 	switch (kvm_apic_get_reg(apic, APIC_DFR)) {
 	case APIC_DFR_FLAT:
@@ -627,10 +630,27 @@ static bool kvm_apic_match_logical_addr(struct kvm_lapic *apic, u32 mda)
 	}
 }
 
+/* KVM APIC implementation has two quirks
+ *  - dest always begins at 0 while xAPIC MDA has offset 24,
+ *  - IOxAPIC messages have to be delivered (directly) to x2APIC.
+ */
+static u32 kvm_apic_mda(unsigned int dest_id, struct kvm_lapic *source,
+                                              struct kvm_lapic *target)
+{
+	bool ipi = source != NULL;
+	bool x2apic_mda = apic_x2apic_mode(ipi ? source : target);
+
+	if (!ipi && dest_id == APIC_BROADCAST && x2apic_mda)
+		return X2APIC_BROADCAST;
+
+	return x2apic_mda ? dest_id : SET_APIC_DEST_FIELD(dest_id);
+}
+
 bool kvm_apic_match_dest(struct kvm_vcpu *vcpu, struct kvm_lapic *source,
 			   int short_hand, unsigned int dest, int dest_mode)
 {
 	struct kvm_lapic *target = vcpu->arch.apic;
+	u32 mda = kvm_apic_mda(dest, source, target);
 
 	apic_debug("target %p, source %p, dest 0x%x, "
 		   "dest_mode 0x%x, short_hand 0x%x\n",
@@ -640,9 +660,9 @@ bool kvm_apic_match_dest(struct kvm_vcpu *vcpu, struct kvm_lapic *source,
 	switch (short_hand) {
 	case APIC_DEST_NOSHORT:
 		if (dest_mode == APIC_DEST_PHYSICAL)
-			return kvm_apic_match_physical_addr(target, dest);
+			return kvm_apic_match_physical_addr(target, mda);
 		else
-			return kvm_apic_match_logical_addr(target, dest);
+			return kvm_apic_match_logical_addr(target, mda);
 	case APIC_DEST_SELF:
 		return target == source;
 	case APIC_DEST_ALLINC:
@@ -664,6 +684,7 @@ bool kvm_irq_delivery_to_apic_fast(struct kvm *kvm, struct kvm_lapic *src,
 	struct kvm_lapic **dst;
 	int i;
 	bool ret = false;
+	bool x2apic_ipi = src && apic_x2apic_mode(src);
 
 	*r = -1;
 
@@ -675,15 +696,15 @@ bool kvm_irq_delivery_to_apic_fast(struct kvm *kvm, struct kvm_lapic *src,
 	if (irq->shorthand)
 		return false;
 
+	if (irq->dest_id == (x2apic_ipi ? X2APIC_BROADCAST : APIC_BROADCAST))
+		return false;
+
 	rcu_read_lock();
 	map = rcu_dereference(kvm->arch.apic_map);
 
 	if (!map)
 		goto out;
 
-	if (irq->dest_id == map->broadcast)
-		goto out;
-
 	ret = true;
 
 	if (irq->dest_mode == APIC_DEST_PHYSICAL) {
@@ -692,16 +713,20 @@ bool kvm_irq_delivery_to_apic_fast(struct kvm *kvm, struct kvm_lapic *src,
 
 		dst = &map->phys_map[irq->dest_id];
 	} else {
-		u32 mda = irq->dest_id << (32 - map->ldr_bits);
-		u16 cid = apic_cluster_id(map, mda);
+		u16 cid;
+
+		if (!kvm_apic_logical_map_valid(map)) {
+			ret = false;
+			goto out;
+		}
+
+		apic_logical_id(map, irq->dest_id, &cid, (u16 *)&bitmap);
 
 		if (cid >= ARRAY_SIZE(map->logical_map))
 			goto out;
 
 		dst = map->logical_map[cid];
 
-		bitmap = apic_logical_id(map, mda);
-
 		if (irq->delivery_mode == APIC_DM_LOWEST) {
 			int l = -1;
 			for_each_set_bit(i, &bitmap, 16) {
@@ -833,8 +858,7 @@ int kvm_apic_compare_prio(struct kvm_vcpu *vcpu1, struct kvm_vcpu *vcpu2)
 
 static void kvm_ioapic_send_eoi(struct kvm_lapic *apic, int vector)
 {
-	if (!(kvm_apic_get_reg(apic, APIC_SPIV) & APIC_SPIV_DIRECTED_EOI) &&
-	    kvm_ioapic_handles_vector(apic->vcpu->kvm, vector)) {
+	if (kvm_ioapic_handles_vector(apic->vcpu->kvm, vector)) {
 		int trigger_mode;
 		if (apic_test_vector(vector, apic->regs + APIC_TMR))
 			trigger_mode = IOAPIC_LEVEL_TRIG;
@@ -1038,7 +1062,7 @@ static int apic_mmio_in_range(struct kvm_lapic *apic, gpa_t addr)
 	    addr < apic->base_address + LAPIC_MMIO_LENGTH;
 }
 
-static int apic_mmio_read(struct kvm_io_device *this,
+static int apic_mmio_read(struct kvm_vcpu *vcpu, struct kvm_io_device *this,
 			   gpa_t address, int len, void *data)
 {
 	struct kvm_lapic *apic = to_lapic(this);
@@ -1358,7 +1382,7 @@ static int apic_reg_write(struct kvm_lapic *apic, u32 reg, u32 val)
 	return ret;
 }
 
-static int apic_mmio_write(struct kvm_io_device *this,
+static int apic_mmio_write(struct kvm_vcpu *vcpu, struct kvm_io_device *this,
 			    gpa_t address, int len, const void *data)
 {
 	struct kvm_lapic *apic = to_lapic(this);
@@ -1498,8 +1522,6 @@ void kvm_lapic_set_base(struct kvm_vcpu *vcpu, u64 value)
 		return;
 	}
 
-	if (!kvm_vcpu_is_bsp(apic->vcpu))
-		value &= ~MSR_IA32_APICBASE_BSP;
 	vcpu->arch.apic_base = value;
 
 	/* update jump label if enable bit changes */
@@ -1572,7 +1594,7 @@ void kvm_lapic_reset(struct kvm_vcpu *vcpu)
 		apic_set_reg(apic, APIC_TMR + 0x10 * i, 0);
 	}
 	apic->irr_pending = kvm_apic_vid_enabled(vcpu->kvm);
-	apic->isr_count = kvm_apic_vid_enabled(vcpu->kvm);
+	apic->isr_count = kvm_x86_ops->hwapic_isr_update ? 1 : 0;
 	apic->highest_isr_cache = -1;
 	update_divide_count(apic);
 	atomic_set(&apic->lapic_timer.pending, 0);
@@ -1782,7 +1804,7 @@ void kvm_apic_post_state_restore(struct kvm_vcpu *vcpu,
 	update_divide_count(apic);
 	start_apic_timer(apic);
 	apic->irr_pending = true;
-	apic->isr_count = kvm_apic_vid_enabled(vcpu->kvm) ?
+	apic->isr_count = kvm_x86_ops->hwapic_isr_update ?
 				1 : count_vectors(apic->regs + APIC_ISR);
 	apic->highest_isr_cache = -1;
 	if (kvm_x86_ops->hwapic_irr_update)
diff --git a/arch/x86/kvm/lapic.h b/arch/x86/kvm/lapic.h
index 0bc6c65..9d28383 100644
--- a/arch/x86/kvm/lapic.h
+++ b/arch/x86/kvm/lapic.h
@@ -1,7 +1,7 @@
 #ifndef __KVM_X86_LAPIC_H
 #define __KVM_X86_LAPIC_H
 
-#include "iodev.h"
+#include <kvm/iodev.h>
 
 #include <linux/kvm_host.h>
 
@@ -148,21 +148,6 @@ static inline bool kvm_apic_vid_enabled(struct kvm *kvm)
 	return kvm_x86_ops->vm_has_apicv(kvm);
 }
 
-static inline u16 apic_cluster_id(struct kvm_apic_map *map, u32 ldr)
-{
-	u16 cid;
-	ldr >>= 32 - map->ldr_bits;
-	cid = (ldr >> map->cid_shift) & map->cid_mask;
-
-	return cid;
-}
-
-static inline u16 apic_logical_id(struct kvm_apic_map *map, u32 ldr)
-{
-	ldr >>= (32 - map->ldr_bits);
-	return ldr & map->lid_mask;
-}
-
 static inline bool kvm_apic_has_events(struct kvm_vcpu *vcpu)
 {
 	return vcpu->arch.apic->pending_events;
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index cee7592..146f295 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -4465,6 +4465,79 @@ void kvm_mmu_slot_remove_write_access(struct kvm *kvm,
 		kvm_flush_remote_tlbs(kvm);
 }
 
+static bool kvm_mmu_zap_collapsible_spte(struct kvm *kvm,
+		unsigned long *rmapp)
+{
+	u64 *sptep;
+	struct rmap_iterator iter;
+	int need_tlb_flush = 0;
+	pfn_t pfn;
+	struct kvm_mmu_page *sp;
+
+	for (sptep = rmap_get_first(*rmapp, &iter); sptep;) {
+		BUG_ON(!(*sptep & PT_PRESENT_MASK));
+
+		sp = page_header(__pa(sptep));
+		pfn = spte_to_pfn(*sptep);
+
+		/*
+		 * Only EPT supported for now; otherwise, one would need to
+		 * find out efficiently whether the guest page tables are
+		 * also using huge pages.
+		 */
+		if (sp->role.direct &&
+			!kvm_is_reserved_pfn(pfn) &&
+			PageTransCompound(pfn_to_page(pfn))) {
+			drop_spte(kvm, sptep);
+			sptep = rmap_get_first(*rmapp, &iter);
+			need_tlb_flush = 1;
+		} else
+			sptep = rmap_get_next(&iter);
+	}
+
+	return need_tlb_flush;
+}
+
+void kvm_mmu_zap_collapsible_sptes(struct kvm *kvm,
+			struct kvm_memory_slot *memslot)
+{
+	bool flush = false;
+	unsigned long *rmapp;
+	unsigned long last_index, index;
+	gfn_t gfn_start, gfn_end;
+
+	spin_lock(&kvm->mmu_lock);
+
+	gfn_start = memslot->base_gfn;
+	gfn_end = memslot->base_gfn + memslot->npages - 1;
+
+	if (gfn_start >= gfn_end)
+		goto out;
+
+	rmapp = memslot->arch.rmap[0];
+	last_index = gfn_to_index(gfn_end, memslot->base_gfn,
+					PT_PAGE_TABLE_LEVEL);
+
+	for (index = 0; index <= last_index; ++index, ++rmapp) {
+		if (*rmapp)
+			flush |= kvm_mmu_zap_collapsible_spte(kvm, rmapp);
+
+		if (need_resched() || spin_needbreak(&kvm->mmu_lock)) {
+			if (flush) {
+				kvm_flush_remote_tlbs(kvm);
+				flush = false;
+			}
+			cond_resched_lock(&kvm->mmu_lock);
+		}
+	}
+
+	if (flush)
+		kvm_flush_remote_tlbs(kvm);
+
+out:
+	spin_unlock(&kvm->mmu_lock);
+}
+
 void kvm_mmu_slot_leaf_clear_dirty(struct kvm *kvm,
 				   struct kvm_memory_slot *memslot)
 {
diff --git a/arch/x86/kvm/pmu.c b/arch/x86/kvm/pmu.c
index 8e6b7d8..29fbf9d 100644
--- a/arch/x86/kvm/pmu.c
+++ b/arch/x86/kvm/pmu.c
@@ -38,7 +38,7 @@ static struct kvm_arch_event_perf_mapping {
 };
 
 /* mapping between fixed pmc index and arch_events array */
-int fixed_pmc_events[] = {1, 0, 7};
+static int fixed_pmc_events[] = {1, 0, 7};
 
 static bool pmc_is_gp(struct kvm_pmc *pmc)
 {
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index d319e0c..ce741b8 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -1261,7 +1261,7 @@ static struct kvm_vcpu *svm_create_vcpu(struct kvm *kvm, unsigned int id)
 
 	svm->vcpu.arch.apic_base = APIC_DEFAULT_PHYS_BASE |
 				   MSR_IA32_APICBASE_ENABLE;
-	if (kvm_vcpu_is_bsp(&svm->vcpu))
+	if (kvm_vcpu_is_reset_bsp(&svm->vcpu))
 		svm->vcpu.arch.apic_base |= MSR_IA32_APICBASE_BSP;
 
 	svm_init_osvw(&svm->vcpu);
@@ -1929,14 +1929,12 @@ static int nop_on_interception(struct vcpu_svm *svm)
 static int halt_interception(struct vcpu_svm *svm)
 {
 	svm->next_rip = kvm_rip_read(&svm->vcpu) + 1;
-	skip_emulated_instruction(&svm->vcpu);
 	return kvm_emulate_halt(&svm->vcpu);
 }
 
 static int vmmcall_interception(struct vcpu_svm *svm)
 {
 	svm->next_rip = kvm_rip_read(&svm->vcpu) + 3;
-	skip_emulated_instruction(&svm->vcpu);
 	kvm_emulate_hypercall(&svm->vcpu);
 	return 1;
 }
@@ -2757,11 +2755,11 @@ static int invlpga_interception(struct vcpu_svm *svm)
 {
 	struct kvm_vcpu *vcpu = &svm->vcpu;
 
-	trace_kvm_invlpga(svm->vmcb->save.rip, vcpu->arch.regs[VCPU_REGS_RCX],
-			  vcpu->arch.regs[VCPU_REGS_RAX]);
+	trace_kvm_invlpga(svm->vmcb->save.rip, kvm_register_read(&svm->vcpu, VCPU_REGS_RCX),
+			  kvm_register_read(&svm->vcpu, VCPU_REGS_RAX));
 
 	/* Let's treat INVLPGA the same as INVLPG (can be optimized!) */
-	kvm_mmu_invlpg(vcpu, vcpu->arch.regs[VCPU_REGS_RAX]);
+	kvm_mmu_invlpg(vcpu, kvm_register_read(&svm->vcpu, VCPU_REGS_RAX));
 
 	svm->next_rip = kvm_rip_read(&svm->vcpu) + 3;
 	skip_emulated_instruction(&svm->vcpu);
@@ -2770,12 +2768,18 @@ static int invlpga_interception(struct vcpu_svm *svm)
 
 static int skinit_interception(struct vcpu_svm *svm)
 {
-	trace_kvm_skinit(svm->vmcb->save.rip, svm->vcpu.arch.regs[VCPU_REGS_RAX]);
+	trace_kvm_skinit(svm->vmcb->save.rip, kvm_register_read(&svm->vcpu, VCPU_REGS_RAX));
 
 	kvm_queue_exception(&svm->vcpu, UD_VECTOR);
 	return 1;
 }
 
+static int wbinvd_interception(struct vcpu_svm *svm)
+{
+	kvm_emulate_wbinvd(&svm->vcpu);
+	return 1;
+}
+
 static int xsetbv_interception(struct vcpu_svm *svm)
 {
 	u64 new_bv = kvm_read_edx_eax(&svm->vcpu);
@@ -2902,7 +2906,8 @@ static int rdpmc_interception(struct vcpu_svm *svm)
 	return 1;
 }
 
-bool check_selective_cr0_intercepted(struct vcpu_svm *svm, unsigned long val)
+static bool check_selective_cr0_intercepted(struct vcpu_svm *svm,
+					    unsigned long val)
 {
 	unsigned long cr0 = svm->vcpu.arch.cr0;
 	bool ret = false;
@@ -2940,7 +2945,10 @@ static int cr_interception(struct vcpu_svm *svm)
 		return emulate_on_interception(svm);
 
 	reg = svm->vmcb->control.exit_info_1 & SVM_EXITINFO_REG_MASK;
-	cr = svm->vmcb->control.exit_code - SVM_EXIT_READ_CR0;
+	if (svm->vmcb->control.exit_code == SVM_EXIT_CR0_SEL_WRITE)
+		cr = SVM_EXIT_WRITE_CR0 - SVM_EXIT_READ_CR0;
+	else
+		cr = svm->vmcb->control.exit_code - SVM_EXIT_READ_CR0;
 
 	err = 0;
 	if (cr >= 16) { /* mov to cr */
@@ -3133,7 +3141,7 @@ static int svm_get_msr(struct kvm_vcpu *vcpu, unsigned ecx, u64 *data)
 
 static int rdmsr_interception(struct vcpu_svm *svm)
 {
-	u32 ecx = svm->vcpu.arch.regs[VCPU_REGS_RCX];
+	u32 ecx = kvm_register_read(&svm->vcpu, VCPU_REGS_RCX);
 	u64 data;
 
 	if (svm_get_msr(&svm->vcpu, ecx, &data)) {
@@ -3142,8 +3150,8 @@ static int rdmsr_interception(struct vcpu_svm *svm)
 	} else {
 		trace_kvm_msr_read(ecx, data);
 
-		svm->vcpu.arch.regs[VCPU_REGS_RAX] = data & 0xffffffff;
-		svm->vcpu.arch.regs[VCPU_REGS_RDX] = data >> 32;
+		kvm_register_write(&svm->vcpu, VCPU_REGS_RAX, data & 0xffffffff);
+		kvm_register_write(&svm->vcpu, VCPU_REGS_RDX, data >> 32);
 		svm->next_rip = kvm_rip_read(&svm->vcpu) + 2;
 		skip_emulated_instruction(&svm->vcpu);
 	}
@@ -3246,9 +3254,8 @@ static int svm_set_msr(struct kvm_vcpu *vcpu, struct msr_data *msr)
 static int wrmsr_interception(struct vcpu_svm *svm)
 {
 	struct msr_data msr;
-	u32 ecx = svm->vcpu.arch.regs[VCPU_REGS_RCX];
-	u64 data = (svm->vcpu.arch.regs[VCPU_REGS_RAX] & -1u)
-		| ((u64)(svm->vcpu.arch.regs[VCPU_REGS_RDX] & -1u) << 32);
+	u32 ecx = kvm_register_read(&svm->vcpu, VCPU_REGS_RCX);
+	u64 data = kvm_read_edx_eax(&svm->vcpu);
 
 	msr.data = data;
 	msr.index = ecx;
@@ -3325,7 +3332,7 @@ static int (*const svm_exit_handlers[])(struct vcpu_svm *svm) = {
 	[SVM_EXIT_READ_CR3]			= cr_interception,
 	[SVM_EXIT_READ_CR4]			= cr_interception,
 	[SVM_EXIT_READ_CR8]			= cr_interception,
-	[SVM_EXIT_CR0_SEL_WRITE]		= emulate_on_interception,
+	[SVM_EXIT_CR0_SEL_WRITE]		= cr_interception,
 	[SVM_EXIT_WRITE_CR0]			= cr_interception,
 	[SVM_EXIT_WRITE_CR3]			= cr_interception,
 	[SVM_EXIT_WRITE_CR4]			= cr_interception,
@@ -3376,7 +3383,7 @@ static int (*const svm_exit_handlers[])(struct vcpu_svm *svm) = {
 	[SVM_EXIT_STGI]				= stgi_interception,
 	[SVM_EXIT_CLGI]				= clgi_interception,
 	[SVM_EXIT_SKINIT]			= skinit_interception,
-	[SVM_EXIT_WBINVD]                       = emulate_on_interception,
+	[SVM_EXIT_WBINVD]                       = wbinvd_interception,
 	[SVM_EXIT_MONITOR]			= monitor_interception,
 	[SVM_EXIT_MWAIT]			= mwait_interception,
 	[SVM_EXIT_XSETBV]			= xsetbv_interception,
@@ -3555,7 +3562,7 @@ static int handle_exit(struct kvm_vcpu *vcpu)
 
 	if (exit_code >= ARRAY_SIZE(svm_exit_handlers)
 	    || !svm_exit_handlers[exit_code]) {
-		WARN_ONCE(1, "vmx: unexpected exit reason 0x%x\n", exit_code);
+		WARN_ONCE(1, "svm: unexpected exit reason 0x%x\n", exit_code);
 		kvm_queue_exception(vcpu, UD_VECTOR);
 		return 1;
 	}
@@ -3649,11 +3656,6 @@ static void svm_load_eoi_exitmap(struct kvm_vcpu *vcpu, u64 *eoi_exit_bitmap)
 	return;
 }
 
-static void svm_hwapic_isr_update(struct kvm *kvm, int isr)
-{
-	return;
-}
-
 static void svm_sync_pir_to_irr(struct kvm_vcpu *vcpu)
 {
 	return;
@@ -4403,7 +4405,6 @@ static struct kvm_x86_ops svm_x86_ops = {
 	.set_virtual_x2apic_mode = svm_set_virtual_x2apic_mode,
 	.vm_has_apicv = svm_vm_has_apicv,
 	.load_eoi_exitmap = svm_load_eoi_exitmap,
-	.hwapic_isr_update = svm_hwapic_isr_update,
 	.sync_pir_to_irr = svm_sync_pir_to_irr,
 
 	.set_tss_addr = svm_set_tss_addr,
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 14c1a18..f5e8dce 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -2168,7 +2168,10 @@ static void vmx_set_msr_bitmap(struct kvm_vcpu *vcpu)
 {
 	unsigned long *msr_bitmap;
 
-	if (irqchip_in_kernel(vcpu->kvm) && apic_x2apic_mode(vcpu->arch.apic)) {
+	if (is_guest_mode(vcpu))
+		msr_bitmap = vmx_msr_bitmap_nested;
+	else if (irqchip_in_kernel(vcpu->kvm) &&
+		apic_x2apic_mode(vcpu->arch.apic)) {
 		if (is_long_mode(vcpu))
 			msr_bitmap = vmx_msr_bitmap_longmode_x2apic;
 		else
@@ -2467,6 +2470,7 @@ static void nested_vmx_setup_ctls_msrs(struct vcpu_vmx *vmx)
 	vmx->nested.nested_vmx_secondary_ctls_low = 0;
 	vmx->nested.nested_vmx_secondary_ctls_high &=
 		SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES |
+		SECONDARY_EXEC_RDTSCP |
 		SECONDARY_EXEC_VIRTUALIZE_X2APIC_MODE |
 		SECONDARY_EXEC_APIC_REGISTER_VIRT |
 		SECONDARY_EXEC_VIRTUAL_INTR_DELIVERY |
@@ -2476,8 +2480,7 @@ static void nested_vmx_setup_ctls_msrs(struct vcpu_vmx *vmx)
 	if (enable_ept) {
 		/* nested EPT: emulate EPT also to L1 */
 		vmx->nested.nested_vmx_secondary_ctls_high |=
-			SECONDARY_EXEC_ENABLE_EPT |
-			SECONDARY_EXEC_UNRESTRICTED_GUEST;
+			SECONDARY_EXEC_ENABLE_EPT;
 		vmx->nested.nested_vmx_ept_caps = VMX_EPT_PAGE_WALK_4_BIT |
 			 VMX_EPTP_WB_BIT | VMX_EPT_2MB_PAGE_BIT |
 			 VMX_EPT_INVEPT_BIT;
@@ -2491,6 +2494,10 @@ static void nested_vmx_setup_ctls_msrs(struct vcpu_vmx *vmx)
 	} else
 		vmx->nested.nested_vmx_ept_caps = 0;
 
+	if (enable_unrestricted_guest)
+		vmx->nested.nested_vmx_secondary_ctls_high |=
+			SECONDARY_EXEC_UNRESTRICTED_GUEST;
+
 	/* miscellaneous data */
 	rdmsr(MSR_IA32_VMX_MISC,
 		vmx->nested.nested_vmx_misc_low,
@@ -3262,8 +3269,8 @@ static void fix_pmode_seg(struct kvm_vcpu *vcpu, int seg,
 		 * default value.
 		 */
 		if (seg == VCPU_SREG_CS || seg == VCPU_SREG_SS)
-			save->selector &= ~SELECTOR_RPL_MASK;
-		save->dpl = save->selector & SELECTOR_RPL_MASK;
+			save->selector &= ~SEGMENT_RPL_MASK;
+		save->dpl = save->selector & SEGMENT_RPL_MASK;
 		save->s = 1;
 	}
 	vmx_set_segment(vcpu, save, seg);
@@ -3836,7 +3843,7 @@ static bool code_segment_valid(struct kvm_vcpu *vcpu)
 	unsigned int cs_rpl;
 
 	vmx_get_segment(vcpu, &cs, VCPU_SREG_CS);
-	cs_rpl = cs.selector & SELECTOR_RPL_MASK;
+	cs_rpl = cs.selector & SEGMENT_RPL_MASK;
 
 	if (cs.unusable)
 		return false;
@@ -3864,7 +3871,7 @@ static bool stack_segment_valid(struct kvm_vcpu *vcpu)
 	unsigned int ss_rpl;
 
 	vmx_get_segment(vcpu, &ss, VCPU_SREG_SS);
-	ss_rpl = ss.selector & SELECTOR_RPL_MASK;
+	ss_rpl = ss.selector & SEGMENT_RPL_MASK;
 
 	if (ss.unusable)
 		return true;
@@ -3886,7 +3893,7 @@ static bool data_segment_valid(struct kvm_vcpu *vcpu, int seg)
 	unsigned int rpl;
 
 	vmx_get_segment(vcpu, &var, seg);
-	rpl = var.selector & SELECTOR_RPL_MASK;
+	rpl = var.selector & SEGMENT_RPL_MASK;
 
 	if (var.unusable)
 		return true;
@@ -3913,7 +3920,7 @@ static bool tr_valid(struct kvm_vcpu *vcpu)
 
 	if (tr.unusable)
 		return false;
-	if (tr.selector & SELECTOR_TI_MASK)	/* TI = 1 */
+	if (tr.selector & SEGMENT_TI_MASK)	/* TI = 1 */
 		return false;
 	if (tr.type != 3 && tr.type != 11) /* TODO: Check if guest is in IA32e mode */
 		return false;
@@ -3931,7 +3938,7 @@ static bool ldtr_valid(struct kvm_vcpu *vcpu)
 
 	if (ldtr.unusable)
 		return true;
-	if (ldtr.selector & SELECTOR_TI_MASK)	/* TI = 1 */
+	if (ldtr.selector & SEGMENT_TI_MASK)	/* TI = 1 */
 		return false;
 	if (ldtr.type != 2)
 		return false;
@@ -3948,8 +3955,8 @@ static bool cs_ss_rpl_check(struct kvm_vcpu *vcpu)
 	vmx_get_segment(vcpu, &cs, VCPU_SREG_CS);
 	vmx_get_segment(vcpu, &ss, VCPU_SREG_SS);
 
-	return ((cs.selector & SELECTOR_RPL_MASK) ==
-		 (ss.selector & SELECTOR_RPL_MASK));
+	return ((cs.selector & SEGMENT_RPL_MASK) ==
+		 (ss.selector & SEGMENT_RPL_MASK));
 }
 
 /*
@@ -4367,6 +4374,18 @@ static int vmx_complete_nested_posted_interrupt(struct kvm_vcpu *vcpu)
 	return 0;
 }
 
+static inline bool kvm_vcpu_trigger_posted_interrupt(struct kvm_vcpu *vcpu)
+{
+#ifdef CONFIG_SMP
+	if (vcpu->mode == IN_GUEST_MODE) {
+		apic->send_IPI_mask(get_cpu_mask(vcpu->cpu),
+				POSTED_INTR_VECTOR);
+		return true;
+	}
+#endif
+	return false;
+}
+
 static int vmx_deliver_nested_posted_interrupt(struct kvm_vcpu *vcpu,
 						int vector)
 {
@@ -4375,9 +4394,7 @@ static int vmx_deliver_nested_posted_interrupt(struct kvm_vcpu *vcpu,
 	if (is_guest_mode(vcpu) &&
 	    vector == vmx->nested.posted_intr_nv) {
 		/* the PIR and ON have been set by L1. */
-		if (vcpu->mode == IN_GUEST_MODE)
-			apic->send_IPI_mask(get_cpu_mask(vcpu->cpu),
-				POSTED_INTR_VECTOR);
+		kvm_vcpu_trigger_posted_interrupt(vcpu);
 		/*
 		 * If a posted intr is not recognized by hardware,
 		 * we will accomplish it in the next vmentry.
@@ -4409,12 +4426,7 @@ static void vmx_deliver_posted_interrupt(struct kvm_vcpu *vcpu, int vector)
 
 	r = pi_test_and_set_on(&vmx->pi_desc);
 	kvm_make_request(KVM_REQ_EVENT, vcpu);
-#ifdef CONFIG_SMP
-	if (!r && (vcpu->mode == IN_GUEST_MODE))
-		apic->send_IPI_mask(get_cpu_mask(vcpu->cpu),
-				POSTED_INTR_VECTOR);
-	else
-#endif
+	if (r || !kvm_vcpu_trigger_posted_interrupt(vcpu))
 		kvm_vcpu_kick(vcpu);
 }
 
@@ -4700,7 +4712,7 @@ static void vmx_vcpu_reset(struct kvm_vcpu *vcpu)
 	vmx->vcpu.arch.regs[VCPU_REGS_RDX] = get_rdx_init_val();
 	kvm_set_cr8(&vmx->vcpu, 0);
 	apic_base_msr.data = APIC_DEFAULT_PHYS_BASE | MSR_IA32_APICBASE_ENABLE;
-	if (kvm_vcpu_is_bsp(&vmx->vcpu))
+	if (kvm_vcpu_is_reset_bsp(&vmx->vcpu))
 		apic_base_msr.data |= MSR_IA32_APICBASE_BSP;
 	apic_base_msr.host_initiated = true;
 	kvm_set_apic_base(&vmx->vcpu, &apic_base_msr);
@@ -4995,7 +5007,7 @@ static int handle_rmode_exception(struct kvm_vcpu *vcpu,
 		if (emulate_instruction(vcpu, 0) == EMULATE_DONE) {
 			if (vcpu->arch.halt_request) {
 				vcpu->arch.halt_request = 0;
-				return kvm_emulate_halt(vcpu);
+				return kvm_vcpu_halt(vcpu);
 			}
 			return 1;
 		}
@@ -5060,6 +5072,10 @@ static int handle_exception(struct kvm_vcpu *vcpu)
 	}
 
 	if (is_invalid_opcode(intr_info)) {
+		if (is_guest_mode(vcpu)) {
+			kvm_queue_exception(vcpu, UD_VECTOR);
+			return 1;
+		}
 		er = emulate_instruction(vcpu, EMULTYPE_TRAP_UD);
 		if (er != EMULATE_DONE)
 			kvm_queue_exception(vcpu, UD_VECTOR);
@@ -5079,9 +5095,10 @@ static int handle_exception(struct kvm_vcpu *vcpu)
 	    !(is_page_fault(intr_info) && !(error_code & PFERR_RSVD_MASK))) {
 		vcpu->run->exit_reason = KVM_EXIT_INTERNAL_ERROR;
 		vcpu->run->internal.suberror = KVM_INTERNAL_ERROR_SIMUL_EX;
-		vcpu->run->internal.ndata = 2;
+		vcpu->run->internal.ndata = 3;
 		vcpu->run->internal.data[0] = vect_info;
 		vcpu->run->internal.data[1] = intr_info;
+		vcpu->run->internal.data[2] = error_code;
 		return 0;
 	}
 
@@ -5522,13 +5539,11 @@ static int handle_interrupt_window(struct kvm_vcpu *vcpu)
 
 static int handle_halt(struct kvm_vcpu *vcpu)
 {
-	skip_emulated_instruction(vcpu);
 	return kvm_emulate_halt(vcpu);
 }
 
 static int handle_vmcall(struct kvm_vcpu *vcpu)
 {
-	skip_emulated_instruction(vcpu);
 	kvm_emulate_hypercall(vcpu);
 	return 1;
 }
@@ -5559,7 +5574,6 @@ static int handle_rdpmc(struct kvm_vcpu *vcpu)
 
 static int handle_wbinvd(struct kvm_vcpu *vcpu)
 {
-	skip_emulated_instruction(vcpu);
 	kvm_emulate_wbinvd(vcpu);
 	return 1;
 }
@@ -5817,7 +5831,7 @@ static int handle_ept_misconfig(struct kvm_vcpu *vcpu)
 	gpa_t gpa;
 
 	gpa = vmcs_read64(GUEST_PHYSICAL_ADDRESS);
-	if (!kvm_io_bus_write(vcpu->kvm, KVM_FAST_MMIO_BUS, gpa, 0, NULL)) {
+	if (!kvm_io_bus_write(vcpu, KVM_FAST_MMIO_BUS, gpa, 0, NULL)) {
 		skip_emulated_instruction(vcpu);
 		return 1;
 	}
@@ -5898,7 +5912,7 @@ static int handle_invalid_guest_state(struct kvm_vcpu *vcpu)
 
 		if (vcpu->arch.halt_request) {
 			vcpu->arch.halt_request = 0;
-			ret = kvm_emulate_halt(vcpu);
+			ret = kvm_vcpu_halt(vcpu);
 			goto out;
 		}
 
@@ -7307,21 +7321,21 @@ static bool nested_vmx_exit_handled_io(struct kvm_vcpu *vcpu,
 		else if (port < 0x10000)
 			bitmap = vmcs12->io_bitmap_b;
 		else
-			return 1;
+			return true;
 		bitmap += (port & 0x7fff) / 8;
 
 		if (last_bitmap != bitmap)
 			if (kvm_read_guest(vcpu->kvm, bitmap, &b, 1))
-				return 1;
+				return true;
 		if (b & (1 << (port & 7)))
-			return 1;
+			return true;
 
 		port++;
 		size--;
 		last_bitmap = bitmap;
 	}
 
-	return 0;
+	return false;
 }
 
 /*
@@ -7337,7 +7351,7 @@ static bool nested_vmx_exit_handled_msr(struct kvm_vcpu *vcpu,
 	gpa_t bitmap;
 
 	if (!nested_cpu_has(vmcs12, CPU_BASED_USE_MSR_BITMAPS))
-		return 1;
+		return true;
 
 	/*
 	 * The MSR_BITMAP page is divided into four 1024-byte bitmaps,
@@ -7356,10 +7370,10 @@ static bool nested_vmx_exit_handled_msr(struct kvm_vcpu *vcpu,
 	if (msr_index < 1024*8) {
 		unsigned char b;
 		if (kvm_read_guest(vcpu->kvm, bitmap + msr_index/8, &b, 1))
-			return 1;
+			return true;
 		return 1 & (b >> (msr_index & 7));
 	} else
-		return 1; /* let L1 handle the wrong parameter */
+		return true; /* let L1 handle the wrong parameter */
 }
 
 /*
@@ -7381,7 +7395,7 @@ static bool nested_vmx_exit_handled_cr(struct kvm_vcpu *vcpu,
 		case 0:
 			if (vmcs12->cr0_guest_host_mask &
 			    (val ^ vmcs12->cr0_read_shadow))
-				return 1;
+				return true;
 			break;
 		case 3:
 			if ((vmcs12->cr3_target_count >= 1 &&
@@ -7392,37 +7406,37 @@ static bool nested_vmx_exit_handled_cr(struct kvm_vcpu *vcpu,
 					vmcs12->cr3_target_value2 == val) ||
 				(vmcs12->cr3_target_count >= 4 &&
 					vmcs12->cr3_target_value3 == val))
-				return 0;
+				return false;
 			if (nested_cpu_has(vmcs12, CPU_BASED_CR3_LOAD_EXITING))
-				return 1;
+				return true;
 			break;
 		case 4:
 			if (vmcs12->cr4_guest_host_mask &
 			    (vmcs12->cr4_read_shadow ^ val))
-				return 1;
+				return true;
 			break;
 		case 8:
 			if (nested_cpu_has(vmcs12, CPU_BASED_CR8_LOAD_EXITING))
-				return 1;
+				return true;
 			break;
 		}
 		break;
 	case 2: /* clts */
 		if ((vmcs12->cr0_guest_host_mask & X86_CR0_TS) &&
 		    (vmcs12->cr0_read_shadow & X86_CR0_TS))
-			return 1;
+			return true;
 		break;
 	case 1: /* mov from cr */
 		switch (cr) {
 		case 3:
 			if (vmcs12->cpu_based_vm_exec_control &
 			    CPU_BASED_CR3_STORE_EXITING)
-				return 1;
+				return true;
 			break;
 		case 8:
 			if (vmcs12->cpu_based_vm_exec_control &
 			    CPU_BASED_CR8_STORE_EXITING)
-				return 1;
+				return true;
 			break;
 		}
 		break;
@@ -7433,14 +7447,14 @@ static bool nested_vmx_exit_handled_cr(struct kvm_vcpu *vcpu,
 		 */
 		if (vmcs12->cr0_guest_host_mask & 0xe &
 		    (val ^ vmcs12->cr0_read_shadow))
-			return 1;
+			return true;
 		if ((vmcs12->cr0_guest_host_mask & 0x1) &&
 		    !(vmcs12->cr0_read_shadow & 0x1) &&
 		    (val & 0x1))
-			return 1;
+			return true;
 		break;
 	}
-	return 0;
+	return false;
 }
 
 /*
@@ -7463,48 +7477,48 @@ static bool nested_vmx_exit_handled(struct kvm_vcpu *vcpu)
 				KVM_ISA_VMX);
 
 	if (vmx->nested.nested_run_pending)
-		return 0;
+		return false;
 
 	if (unlikely(vmx->fail)) {
 		pr_info_ratelimited("%s failed vm entry %x\n", __func__,
 				    vmcs_read32(VM_INSTRUCTION_ERROR));
-		return 1;
+		return true;
 	}
 
 	switch (exit_reason) {
 	case EXIT_REASON_EXCEPTION_NMI:
 		if (!is_exception(intr_info))
-			return 0;
+			return false;
 		else if (is_page_fault(intr_info))
 			return enable_ept;
 		else if (is_no_device(intr_info) &&
 			 !(vmcs12->guest_cr0 & X86_CR0_TS))
-			return 0;
+			return false;
 		return vmcs12->exception_bitmap &
 				(1u << (intr_info & INTR_INFO_VECTOR_MASK));
 	case EXIT_REASON_EXTERNAL_INTERRUPT:
-		return 0;
+		return false;
 	case EXIT_REASON_TRIPLE_FAULT:
-		return 1;
+		return true;
 	case EXIT_REASON_PENDING_INTERRUPT:
 		return nested_cpu_has(vmcs12, CPU_BASED_VIRTUAL_INTR_PENDING);
 	case EXIT_REASON_NMI_WINDOW:
 		return nested_cpu_has(vmcs12, CPU_BASED_VIRTUAL_NMI_PENDING);
 	case EXIT_REASON_TASK_SWITCH:
-		return 1;
+		return true;
 	case EXIT_REASON_CPUID:
 		if (kvm_register_read(vcpu, VCPU_REGS_RAX) == 0xa)
-			return 0;
-		return 1;
+			return false;
+		return true;
 	case EXIT_REASON_HLT:
 		return nested_cpu_has(vmcs12, CPU_BASED_HLT_EXITING);
 	case EXIT_REASON_INVD:
-		return 1;
+		return true;
 	case EXIT_REASON_INVLPG:
 		return nested_cpu_has(vmcs12, CPU_BASED_INVLPG_EXITING);
 	case EXIT_REASON_RDPMC:
 		return nested_cpu_has(vmcs12, CPU_BASED_RDPMC_EXITING);
-	case EXIT_REASON_RDTSC:
+	case EXIT_REASON_RDTSC: case EXIT_REASON_RDTSCP:
 		return nested_cpu_has(vmcs12, CPU_BASED_RDTSC_EXITING);
 	case EXIT_REASON_VMCALL: case EXIT_REASON_VMCLEAR:
 	case EXIT_REASON_VMLAUNCH: case EXIT_REASON_VMPTRLD:
@@ -7516,7 +7530,7 @@ static bool nested_vmx_exit_handled(struct kvm_vcpu *vcpu)
 		 * VMX instructions trap unconditionally. This allows L1 to
 		 * emulate them for its L2 guest, i.e., allows 3-level nesting!
 		 */
-		return 1;
+		return true;
 	case EXIT_REASON_CR_ACCESS:
 		return nested_vmx_exit_handled_cr(vcpu, vmcs12);
 	case EXIT_REASON_DR_ACCESS:
@@ -7527,7 +7541,7 @@ static bool nested_vmx_exit_handled(struct kvm_vcpu *vcpu)
 	case EXIT_REASON_MSR_WRITE:
 		return nested_vmx_exit_handled_msr(vcpu, vmcs12, exit_reason);
 	case EXIT_REASON_INVALID_STATE:
-		return 1;
+		return true;
 	case EXIT_REASON_MWAIT_INSTRUCTION:
 		return nested_cpu_has(vmcs12, CPU_BASED_MWAIT_EXITING);
 	case EXIT_REASON_MONITOR_INSTRUCTION:
@@ -7537,7 +7551,7 @@ static bool nested_vmx_exit_handled(struct kvm_vcpu *vcpu)
 			nested_cpu_has2(vmcs12,
 				SECONDARY_EXEC_PAUSE_LOOP_EXITING);
 	case EXIT_REASON_MCE_DURING_VMENTRY:
-		return 0;
+		return false;
 	case EXIT_REASON_TPR_BELOW_THRESHOLD:
 		return nested_cpu_has(vmcs12, CPU_BASED_TPR_SHADOW);
 	case EXIT_REASON_APIC_ACCESS:
@@ -7546,7 +7560,7 @@ static bool nested_vmx_exit_handled(struct kvm_vcpu *vcpu)
 	case EXIT_REASON_APIC_WRITE:
 	case EXIT_REASON_EOI_INDUCED:
 		/* apic_write and eoi_induced should exit unconditionally. */
-		return 1;
+		return true;
 	case EXIT_REASON_EPT_VIOLATION:
 		/*
 		 * L0 always deals with the EPT violation. If nested EPT is
@@ -7554,7 +7568,7 @@ static bool nested_vmx_exit_handled(struct kvm_vcpu *vcpu)
 		 * missing in the guest EPT table (EPT12), the EPT violation
 		 * will be injected with nested_ept_inject_page_fault()
 		 */
-		return 0;
+		return false;
 	case EXIT_REASON_EPT_MISCONFIG:
 		/*
 		 * L2 never uses directly L1's EPT, but rather L0's own EPT
@@ -7562,11 +7576,11 @@ static bool nested_vmx_exit_handled(struct kvm_vcpu *vcpu)
 		 * (EPT on EPT). So any problems with the structure of the
 		 * table is L0's fault.
 		 */
-		return 0;
+		return false;
 	case EXIT_REASON_WBINVD:
 		return nested_cpu_has2(vmcs12, SECONDARY_EXEC_WBINVD_EXITING);
 	case EXIT_REASON_XSETBV:
-		return 1;
+		return true;
 	case EXIT_REASON_XSAVES: case EXIT_REASON_XRSTORS:
 		/*
 		 * This should never happen, since it is not possible to
@@ -7576,7 +7590,7 @@ static bool nested_vmx_exit_handled(struct kvm_vcpu *vcpu)
 		 */
 		return nested_cpu_has2(vmcs12, SECONDARY_EXEC_XSAVES);
 	default:
-		return 1;
+		return true;
 	}
 }
 
@@ -8511,6 +8525,9 @@ static void vmx_cpuid_update(struct kvm_vcpu *vcpu)
 						exec_control);
 			}
 		}
+		if (nested && !vmx->rdtscp_enabled)
+			vmx->nested.nested_vmx_secondary_ctls_high &=
+				~SECONDARY_EXEC_RDTSCP;
 	}
 
 	/* Exposing INVPCID only when PCID is exposed */
@@ -8611,10 +8628,11 @@ static bool nested_get_vmcs12_pages(struct kvm_vcpu *vcpu,
 					struct vmcs12 *vmcs12)
 {
 	struct vcpu_vmx *vmx = to_vmx(vcpu);
+	int maxphyaddr = cpuid_maxphyaddr(vcpu);
 
 	if (nested_cpu_has2(vmcs12, SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES)) {
-		/* TODO: Also verify bits beyond physical address width are 0 */
-		if (!PAGE_ALIGNED(vmcs12->apic_access_addr))
+		if (!PAGE_ALIGNED(vmcs12->apic_access_addr) ||
+		    vmcs12->apic_access_addr >> maxphyaddr)
 			return false;
 
 		/*
@@ -8630,8 +8648,8 @@ static bool nested_get_vmcs12_pages(struct kvm_vcpu *vcpu,
 	}
 
 	if (nested_cpu_has(vmcs12, CPU_BASED_TPR_SHADOW)) {
-		/* TODO: Also verify bits beyond physical address width are 0 */
-		if (!PAGE_ALIGNED(vmcs12->virtual_apic_page_addr))
+		if (!PAGE_ALIGNED(vmcs12->virtual_apic_page_addr) ||
+		    vmcs12->virtual_apic_page_addr >> maxphyaddr)
 			return false;
 
 		if (vmx->nested.virtual_apic_page) /* shouldn't happen */
@@ -8654,7 +8672,8 @@ static bool nested_get_vmcs12_pages(struct kvm_vcpu *vcpu,
 	}
 
 	if (nested_cpu_has_posted_intr(vmcs12)) {
-		if (!IS_ALIGNED(vmcs12->posted_intr_desc_addr, 64))
+		if (!IS_ALIGNED(vmcs12->posted_intr_desc_addr, 64) ||
+		    vmcs12->posted_intr_desc_addr >> maxphyaddr)
 			return false;
 
 		if (vmx->nested.pi_desc_page) { /* shouldn't happen */
@@ -8853,9 +8872,9 @@ static int nested_vmx_check_apicv_controls(struct kvm_vcpu *vcpu,
 
 static int nested_vmx_check_msr_switch(struct kvm_vcpu *vcpu,
 				       unsigned long count_field,
-				       unsigned long addr_field,
-				       int maxphyaddr)
+				       unsigned long addr_field)
 {
+	int maxphyaddr;
 	u64 count, addr;
 
 	if (vmcs12_read_any(vcpu, count_field, &count) ||
@@ -8865,6 +8884,7 @@ static int nested_vmx_check_msr_switch(struct kvm_vcpu *vcpu,
 	}
 	if (count == 0)
 		return 0;
+	maxphyaddr = cpuid_maxphyaddr(vcpu);
 	if (!IS_ALIGNED(addr, 16) || addr >> maxphyaddr ||
 	    (addr + count * sizeof(struct vmx_msr_entry) - 1) >> maxphyaddr) {
 		pr_warn_ratelimited(
@@ -8878,19 +8898,16 @@ static int nested_vmx_check_msr_switch(struct kvm_vcpu *vcpu,
 static int nested_vmx_check_msr_switch_controls(struct kvm_vcpu *vcpu,
 						struct vmcs12 *vmcs12)
 {
-	int maxphyaddr;
-
 	if (vmcs12->vm_exit_msr_load_count == 0 &&
 	    vmcs12->vm_exit_msr_store_count == 0 &&
 	    vmcs12->vm_entry_msr_load_count == 0)
 		return 0; /* Fast path */
-	maxphyaddr = cpuid_maxphyaddr(vcpu);
 	if (nested_vmx_check_msr_switch(vcpu, VM_EXIT_MSR_LOAD_COUNT,
-					VM_EXIT_MSR_LOAD_ADDR, maxphyaddr) ||
+					VM_EXIT_MSR_LOAD_ADDR) ||
 	    nested_vmx_check_msr_switch(vcpu, VM_EXIT_MSR_STORE_COUNT,
-					VM_EXIT_MSR_STORE_ADDR, maxphyaddr) ||
+					VM_EXIT_MSR_STORE_ADDR) ||
 	    nested_vmx_check_msr_switch(vcpu, VM_ENTRY_MSR_LOAD_COUNT,
-					VM_ENTRY_MSR_LOAD_ADDR, maxphyaddr))
+					VM_ENTRY_MSR_LOAD_ADDR))
 		return -EINVAL;
 	return 0;
 }
@@ -9140,8 +9157,9 @@ static void prepare_vmcs02(struct kvm_vcpu *vcpu, struct vmcs12 *vmcs12)
 			exec_control &= ~SECONDARY_EXEC_RDTSCP;
 		/* Take the following fields only from vmcs12 */
 		exec_control &= ~(SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES |
+				  SECONDARY_EXEC_RDTSCP |
 				  SECONDARY_EXEC_VIRTUAL_INTR_DELIVERY |
-                                  SECONDARY_EXEC_APIC_REGISTER_VIRT);
+				  SECONDARY_EXEC_APIC_REGISTER_VIRT);
 		if (nested_cpu_has(vmcs12,
 				CPU_BASED_ACTIVATE_SECONDARY_CONTROLS))
 			exec_control |= vmcs12->secondary_vm_exec_control;
@@ -9213,9 +9231,9 @@ static void prepare_vmcs02(struct kvm_vcpu *vcpu, struct vmcs12 *vmcs12)
 	}
 
 	if (cpu_has_vmx_msr_bitmap() &&
-	    exec_control & CPU_BASED_USE_MSR_BITMAPS &&
-	    nested_vmx_merge_msr_bitmap(vcpu, vmcs12)) {
-		vmcs_write64(MSR_BITMAP, __pa(vmx_msr_bitmap_nested));
+	    exec_control & CPU_BASED_USE_MSR_BITMAPS) {
+		nested_vmx_merge_msr_bitmap(vcpu, vmcs12);
+		/* MSR_BITMAP will be set by following vmx_set_efer. */
 	} else
 		exec_control &= ~CPU_BASED_USE_MSR_BITMAPS;
 
@@ -9374,7 +9392,6 @@ static int nested_vmx_run(struct kvm_vcpu *vcpu, bool launch)
 	}
 
 	if (!nested_get_vmcs12_pages(vcpu, vmcs12)) {
-		/*TODO: Also verify bits beyond physical address width are 0*/
 		nested_vmx_failValid(vcpu, VMXERR_ENTRY_INVALID_CONTROL_FIELD);
 		return 1;
 	}
@@ -9513,7 +9530,7 @@ static int nested_vmx_run(struct kvm_vcpu *vcpu, bool launch)
 	vmcs12->launch_state = 1;
 
 	if (vmcs12->guest_activity_state == GUEST_ACTIVITY_HLT)
-		return kvm_emulate_halt(vcpu);
+		return kvm_vcpu_halt(vcpu);
 
 	vmx->nested.nested_run_pending = 1;
 
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index bd7a70b..e1a8126 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -801,6 +801,17 @@ unsigned long kvm_get_cr8(struct kvm_vcpu *vcpu)
 }
 EXPORT_SYMBOL_GPL(kvm_get_cr8);
 
+static void kvm_update_dr0123(struct kvm_vcpu *vcpu)
+{
+	int i;
+
+	if (!(vcpu->guest_debug & KVM_GUESTDBG_USE_HW_BP)) {
+		for (i = 0; i < KVM_NR_DB_REGS; i++)
+			vcpu->arch.eff_db[i] = vcpu->arch.db[i];
+		vcpu->arch.switch_db_regs |= KVM_DEBUGREG_RELOAD;
+	}
+}
+
 static void kvm_update_dr6(struct kvm_vcpu *vcpu)
 {
 	if (!(vcpu->guest_debug & KVM_GUESTDBG_USE_HW_BP))
@@ -1070,19 +1081,19 @@ static void update_pvclock_gtod(struct timekeeper *tk)
 	struct pvclock_gtod_data *vdata = &pvclock_gtod_data;
 	u64 boot_ns;
 
-	boot_ns = ktime_to_ns(ktime_add(tk->tkr.base_mono, tk->offs_boot));
+	boot_ns = ktime_to_ns(ktime_add(tk->tkr_mono.base, tk->offs_boot));
 
 	write_seqcount_begin(&vdata->seq);
 
 	/* copy pvclock gtod data */
-	vdata->clock.vclock_mode	= tk->tkr.clock->archdata.vclock_mode;
-	vdata->clock.cycle_last		= tk->tkr.cycle_last;
-	vdata->clock.mask		= tk->tkr.mask;
-	vdata->clock.mult		= tk->tkr.mult;
-	vdata->clock.shift		= tk->tkr.shift;
+	vdata->clock.vclock_mode	= tk->tkr_mono.clock->archdata.vclock_mode;
+	vdata->clock.cycle_last		= tk->tkr_mono.cycle_last;
+	vdata->clock.mask		= tk->tkr_mono.mask;
+	vdata->clock.mult		= tk->tkr_mono.mult;
+	vdata->clock.shift		= tk->tkr_mono.shift;
 
 	vdata->boot_ns			= boot_ns;
-	vdata->nsec_base		= tk->tkr.xtime_nsec;
+	vdata->nsec_base		= tk->tkr_mono.xtime_nsec;
 
 	write_seqcount_end(&vdata->seq);
 }
@@ -2744,7 +2755,6 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
 	case KVM_CAP_USER_NMI:
 	case KVM_CAP_REINJECT_CONTROL:
 	case KVM_CAP_IRQ_INJECT_STATUS:
-	case KVM_CAP_IRQFD:
 	case KVM_CAP_IOEVENTFD:
 	case KVM_CAP_IOEVENTFD_NO_LENGTH:
 	case KVM_CAP_PIT2:
@@ -3150,6 +3160,7 @@ static int kvm_vcpu_ioctl_x86_set_debugregs(struct kvm_vcpu *vcpu,
 		return -EINVAL;
 
 	memcpy(vcpu->arch.db, dbgregs->db, sizeof(vcpu->arch.db));
+	kvm_update_dr0123(vcpu);
 	vcpu->arch.dr6 = dbgregs->dr6;
 	kvm_update_dr6(vcpu);
 	vcpu->arch.dr7 = dbgregs->dr7;
@@ -4115,8 +4126,8 @@ static int vcpu_mmio_write(struct kvm_vcpu *vcpu, gpa_t addr, int len,
 	do {
 		n = min(len, 8);
 		if (!(vcpu->arch.apic &&
-		      !kvm_iodevice_write(&vcpu->arch.apic->dev, addr, n, v))
-		    && kvm_io_bus_write(vcpu->kvm, KVM_MMIO_BUS, addr, n, v))
+		      !kvm_iodevice_write(vcpu, &vcpu->arch.apic->dev, addr, n, v))
+		    && kvm_io_bus_write(vcpu, KVM_MMIO_BUS, addr, n, v))
 			break;
 		handled += n;
 		addr += n;
@@ -4135,8 +4146,9 @@ static int vcpu_mmio_read(struct kvm_vcpu *vcpu, gpa_t addr, int len, void *v)
 	do {
 		n = min(len, 8);
 		if (!(vcpu->arch.apic &&
-		      !kvm_iodevice_read(&vcpu->arch.apic->dev, addr, n, v))
-		    && kvm_io_bus_read(vcpu->kvm, KVM_MMIO_BUS, addr, n, v))
+		      !kvm_iodevice_read(vcpu, &vcpu->arch.apic->dev,
+					 addr, n, v))
+		    && kvm_io_bus_read(vcpu, KVM_MMIO_BUS, addr, n, v))
 			break;
 		trace_kvm_mmio(KVM_TRACE_MMIO_READ, n, addr, *(u64 *)v);
 		handled += n;
@@ -4476,7 +4488,8 @@ mmio:
 	return X86EMUL_CONTINUE;
 }
 
-int emulator_read_write(struct x86_emulate_ctxt *ctxt, unsigned long addr,
+static int emulator_read_write(struct x86_emulate_ctxt *ctxt,
+			unsigned long addr,
 			void *val, unsigned int bytes,
 			struct x86_exception *exception,
 			const struct read_write_emulator_ops *ops)
@@ -4539,7 +4552,7 @@ static int emulator_read_emulated(struct x86_emulate_ctxt *ctxt,
 				   exception, &read_emultor);
 }
 
-int emulator_write_emulated(struct x86_emulate_ctxt *ctxt,
+static int emulator_write_emulated(struct x86_emulate_ctxt *ctxt,
 			    unsigned long addr,
 			    const void *val,
 			    unsigned int bytes,
@@ -4630,10 +4643,10 @@ static int kernel_pio(struct kvm_vcpu *vcpu, void *pd)
 	int r;
 
 	if (vcpu->arch.pio.in)
-		r = kvm_io_bus_read(vcpu->kvm, KVM_PIO_BUS, vcpu->arch.pio.port,
+		r = kvm_io_bus_read(vcpu, KVM_PIO_BUS, vcpu->arch.pio.port,
 				    vcpu->arch.pio.size, pd);
 	else
-		r = kvm_io_bus_write(vcpu->kvm, KVM_PIO_BUS,
+		r = kvm_io_bus_write(vcpu, KVM_PIO_BUS,
 				     vcpu->arch.pio.port, vcpu->arch.pio.size,
 				     pd);
 	return r;
@@ -4706,7 +4719,7 @@ static void emulator_invlpg(struct x86_emulate_ctxt *ctxt, ulong address)
 	kvm_mmu_invlpg(emul_to_vcpu(ctxt), address);
 }
 
-int kvm_emulate_wbinvd(struct kvm_vcpu *vcpu)
+int kvm_emulate_wbinvd_noskip(struct kvm_vcpu *vcpu)
 {
 	if (!need_emulate_wbinvd(vcpu))
 		return X86EMUL_CONTINUE;
@@ -4723,19 +4736,29 @@ int kvm_emulate_wbinvd(struct kvm_vcpu *vcpu)
 		wbinvd();
 	return X86EMUL_CONTINUE;
 }
+
+int kvm_emulate_wbinvd(struct kvm_vcpu *vcpu)
+{
+	kvm_x86_ops->skip_emulated_instruction(vcpu);
+	return kvm_emulate_wbinvd_noskip(vcpu);
+}
 EXPORT_SYMBOL_GPL(kvm_emulate_wbinvd);
 
+
+
 static void emulator_wbinvd(struct x86_emulate_ctxt *ctxt)
 {
-	kvm_emulate_wbinvd(emul_to_vcpu(ctxt));
+	kvm_emulate_wbinvd_noskip(emul_to_vcpu(ctxt));
 }
 
-int emulator_get_dr(struct x86_emulate_ctxt *ctxt, int dr, unsigned long *dest)
+static int emulator_get_dr(struct x86_emulate_ctxt *ctxt, int dr,
+			   unsigned long *dest)
 {
 	return kvm_get_dr(emul_to_vcpu(ctxt), dr, dest);
 }
 
-int emulator_set_dr(struct x86_emulate_ctxt *ctxt, int dr, unsigned long value)
+static int emulator_set_dr(struct x86_emulate_ctxt *ctxt, int dr,
+			   unsigned long value)
 {
 
 	return __kvm_set_dr(emul_to_vcpu(ctxt), dr, value);
@@ -5817,7 +5840,7 @@ void kvm_arch_exit(void)
 	free_percpu(shared_msrs);
 }
 
-int kvm_emulate_halt(struct kvm_vcpu *vcpu)
+int kvm_vcpu_halt(struct kvm_vcpu *vcpu)
 {
 	++vcpu->stat.halt_exits;
 	if (irqchip_in_kernel(vcpu->kvm)) {
@@ -5828,6 +5851,13 @@ int kvm_emulate_halt(struct kvm_vcpu *vcpu)
 		return 0;
 	}
 }
+EXPORT_SYMBOL_GPL(kvm_vcpu_halt);
+
+int kvm_emulate_halt(struct kvm_vcpu *vcpu)
+{
+	kvm_x86_ops->skip_emulated_instruction(vcpu);
+	return kvm_vcpu_halt(vcpu);
+}
 EXPORT_SYMBOL_GPL(kvm_emulate_halt);
 
 int kvm_hv_hypercall(struct kvm_vcpu *vcpu)
@@ -5904,7 +5934,7 @@ static void kvm_pv_kick_cpu_op(struct kvm *kvm, unsigned long flags, int apicid)
 	lapic_irq.dest_id = apicid;
 
 	lapic_irq.delivery_mode = APIC_DM_REMRD;
-	kvm_irq_delivery_to_apic(kvm, 0, &lapic_irq, NULL);
+	kvm_irq_delivery_to_apic(kvm, NULL, &lapic_irq, NULL);
 }
 
 int kvm_emulate_hypercall(struct kvm_vcpu *vcpu)
@@ -5912,6 +5942,8 @@ int kvm_emulate_hypercall(struct kvm_vcpu *vcpu)
 	unsigned long nr, a0, a1, a2, a3, ret;
 	int op_64_bit, r = 1;
 
+	kvm_x86_ops->skip_emulated_instruction(vcpu);
+
 	if (kvm_hv_hypercall_enabled(vcpu->kvm))
 		return kvm_hv_hypercall(vcpu);
 
@@ -6165,7 +6197,7 @@ void kvm_arch_mmu_notifier_invalidate_page(struct kvm *kvm,
 }
 
 /*
- * Returns 1 to let __vcpu_run() continue the guest execution loop without
+ * Returns 1 to let vcpu_run() continue the guest execution loop without
  * exiting to the userspace.  Otherwise, the value will be returned to the
  * userspace.
  */
@@ -6302,6 +6334,7 @@ static int vcpu_enter_guest(struct kvm_vcpu *vcpu)
 		set_debugreg(vcpu->arch.eff_db[2], 2);
 		set_debugreg(vcpu->arch.eff_db[3], 3);
 		set_debugreg(vcpu->arch.dr6, 6);
+		vcpu->arch.switch_db_regs &= ~KVM_DEBUGREG_RELOAD;
 	}
 
 	trace_kvm_entry(vcpu->vcpu_id);
@@ -6383,42 +6416,47 @@ out:
 	return r;
 }
 
+static inline int vcpu_block(struct kvm *kvm, struct kvm_vcpu *vcpu)
+{
+	if (!kvm_arch_vcpu_runnable(vcpu)) {
+		srcu_read_unlock(&kvm->srcu, vcpu->srcu_idx);
+		kvm_vcpu_block(vcpu);
+		vcpu->srcu_idx = srcu_read_lock(&kvm->srcu);
+		if (!kvm_check_request(KVM_REQ_UNHALT, vcpu))
+			return 1;
+	}
+
+	kvm_apic_accept_events(vcpu);
+	switch(vcpu->arch.mp_state) {
+	case KVM_MP_STATE_HALTED:
+		vcpu->arch.pv.pv_unhalted = false;
+		vcpu->arch.mp_state =
+			KVM_MP_STATE_RUNNABLE;
+	case KVM_MP_STATE_RUNNABLE:
+		vcpu->arch.apf.halted = false;
+		break;
+	case KVM_MP_STATE_INIT_RECEIVED:
+		break;
+	default:
+		return -EINTR;
+		break;
+	}
+	return 1;
+}
 
-static int __vcpu_run(struct kvm_vcpu *vcpu)
+static int vcpu_run(struct kvm_vcpu *vcpu)
 {
 	int r;
 	struct kvm *kvm = vcpu->kvm;
 
 	vcpu->srcu_idx = srcu_read_lock(&kvm->srcu);
 
-	r = 1;
-	while (r > 0) {
+	for (;;) {
 		if (vcpu->arch.mp_state == KVM_MP_STATE_RUNNABLE &&
 		    !vcpu->arch.apf.halted)
 			r = vcpu_enter_guest(vcpu);
-		else {
-			srcu_read_unlock(&kvm->srcu, vcpu->srcu_idx);
-			kvm_vcpu_block(vcpu);
-			vcpu->srcu_idx = srcu_read_lock(&kvm->srcu);
-			if (kvm_check_request(KVM_REQ_UNHALT, vcpu)) {
-				kvm_apic_accept_events(vcpu);
-				switch(vcpu->arch.mp_state) {
-				case KVM_MP_STATE_HALTED:
-					vcpu->arch.pv.pv_unhalted = false;
-					vcpu->arch.mp_state =
-						KVM_MP_STATE_RUNNABLE;
-				case KVM_MP_STATE_RUNNABLE:
-					vcpu->arch.apf.halted = false;
-					break;
-				case KVM_MP_STATE_INIT_RECEIVED:
-					break;
-				default:
-					r = -EINTR;
-					break;
-				}
-			}
-		}
-
+		else
+			r = vcpu_block(kvm, vcpu);
 		if (r <= 0)
 			break;
 
@@ -6430,6 +6468,7 @@ static int __vcpu_run(struct kvm_vcpu *vcpu)
 			r = -EINTR;
 			vcpu->run->exit_reason = KVM_EXIT_INTR;
 			++vcpu->stat.request_irq_exits;
+			break;
 		}
 
 		kvm_check_async_pf_completion(vcpu);
@@ -6438,6 +6477,7 @@ static int __vcpu_run(struct kvm_vcpu *vcpu)
 			r = -EINTR;
 			vcpu->run->exit_reason = KVM_EXIT_INTR;
 			++vcpu->stat.signal_exits;
+			break;
 		}
 		if (need_resched()) {
 			srcu_read_unlock(&kvm->srcu, vcpu->srcu_idx);
@@ -6569,7 +6609,7 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
 	} else
 		WARN_ON(vcpu->arch.pio.count || vcpu->mmio_needed);
 
-	r = __vcpu_run(vcpu);
+	r = vcpu_run(vcpu);
 
 out:
 	post_kvm_run_save(vcpu);
@@ -7076,11 +7116,14 @@ void kvm_vcpu_reset(struct kvm_vcpu *vcpu)
 	kvm_clear_exception_queue(vcpu);
 
 	memset(vcpu->arch.db, 0, sizeof(vcpu->arch.db));
+	kvm_update_dr0123(vcpu);
 	vcpu->arch.dr6 = DR6_INIT;
 	kvm_update_dr6(vcpu);
 	vcpu->arch.dr7 = DR7_FIXED_1;
 	kvm_update_dr7(vcpu);
 
+	vcpu->arch.cr2 = 0;
+
 	kvm_make_request(KVM_REQ_EVENT, vcpu);
 	vcpu->arch.apf.msr_val = 0;
 	vcpu->arch.st.msr_val = 0;
@@ -7241,7 +7284,7 @@ int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu)
 
 	vcpu->arch.pv.pv_unhalted = false;
 	vcpu->arch.emulate_ctxt.ops = &emulate_ops;
-	if (!irqchip_in_kernel(kvm) || kvm_vcpu_is_bsp(vcpu))
+	if (!irqchip_in_kernel(kvm) || kvm_vcpu_is_reset_bsp(vcpu))
 		vcpu->arch.mp_state = KVM_MP_STATE_RUNNABLE;
 	else
 		vcpu->arch.mp_state = KVM_MP_STATE_UNINITIALIZED;
@@ -7289,6 +7332,8 @@ int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu)
 	vcpu->arch.guest_supported_xcr0 = 0;
 	vcpu->arch.guest_xstate_size = XSAVE_HDR_SIZE + XSAVE_HDR_OFFSET;
 
+	vcpu->arch.maxphyaddr = cpuid_query_maxphyaddr(vcpu);
+
 	kvm_async_pf_hash_reset(vcpu);
 	kvm_pmu_init(vcpu);
 
@@ -7429,7 +7474,7 @@ void kvm_arch_free_memslot(struct kvm *kvm, struct kvm_memory_slot *free,
 
 	for (i = 0; i < KVM_NR_PAGE_SIZES; ++i) {
 		if (!dont || free->arch.rmap[i] != dont->arch.rmap[i]) {
-			kvm_kvfree(free->arch.rmap[i]);
+			kvfree(free->arch.rmap[i]);
 			free->arch.rmap[i] = NULL;
 		}
 		if (i == 0)
@@ -7437,7 +7482,7 @@ void kvm_arch_free_memslot(struct kvm *kvm, struct kvm_memory_slot *free,
 
 		if (!dont || free->arch.lpage_info[i - 1] !=
 			     dont->arch.lpage_info[i - 1]) {
-			kvm_kvfree(free->arch.lpage_info[i - 1]);
+			kvfree(free->arch.lpage_info[i - 1]);
 			free->arch.lpage_info[i - 1] = NULL;
 		}
 	}
@@ -7491,12 +7536,12 @@ int kvm_arch_create_memslot(struct kvm *kvm, struct kvm_memory_slot *slot,
 
 out_free:
 	for (i = 0; i < KVM_NR_PAGE_SIZES; ++i) {
-		kvm_kvfree(slot->arch.rmap[i]);
+		kvfree(slot->arch.rmap[i]);
 		slot->arch.rmap[i] = NULL;
 		if (i == 0)
 			continue;
 
-		kvm_kvfree(slot->arch.lpage_info[i - 1]);
+		kvfree(slot->arch.lpage_info[i - 1]);
 		slot->arch.lpage_info[i - 1] = NULL;
 	}
 	return -ENOMEM;
@@ -7619,6 +7664,23 @@ void kvm_arch_commit_memory_region(struct kvm *kvm,
 	new = id_to_memslot(kvm->memslots, mem->slot);
 
 	/*
+	 * Dirty logging tracks sptes in 4k granularity, meaning that large
+	 * sptes have to be split.  If live migration is successful, the guest
+	 * in the source machine will be destroyed and large sptes will be
+	 * created in the destination. However, if the guest continues to run
+	 * in the source machine (for example if live migration fails), small
+	 * sptes will remain around and cause bad performance.
+	 *
+	 * Scan sptes if dirty logging has been stopped, dropping those
+	 * which can be collapsed into a single large-page spte.  Later
+	 * page faults will create the large-page sptes.
+	 */
+	if ((change != KVM_MR_DELETE) &&
+		(old->flags & KVM_MEM_LOG_DIRTY_PAGES) &&
+		!(new->flags & KVM_MEM_LOG_DIRTY_PAGES))
+		kvm_mmu_zap_collapsible_sptes(kvm, new);
+
+	/*
 	 * Set up write protection and/or dirty logging for the new slot.
 	 *
 	 * For KVM_MR_DELETE and KVM_MR_MOVE, the shadow pages of old slot have
diff --git a/arch/x86/lguest/Kconfig b/arch/x86/lguest/Kconfig
index 4a0890f8..08f41ca 100644
--- a/arch/x86/lguest/Kconfig
+++ b/arch/x86/lguest/Kconfig
@@ -1,6 +1,6 @@
 config LGUEST_GUEST
 	bool "Lguest guest support"
-	depends on X86_32 && PARAVIRT
+	depends on X86_32 && PARAVIRT && PCI
 	select TTY
 	select VIRTUALIZATION
 	select VIRTIO
@@ -8,7 +8,7 @@ config LGUEST_GUEST
 	help
 	  Lguest is a tiny in-kernel hypervisor.  Selecting this will
 	  allow your kernel to boot under lguest.  This option will increase
-	  your kernel size by about 6k.  If in doubt, say N.
+	  your kernel size by about 10k.  If in doubt, say N.
 
 	  If you say Y here, make sure you say Y (or M) to the virtio block
 	  and net drivers which lguest needs.
diff --git a/arch/x86/lguest/boot.c b/arch/x86/lguest/boot.c
index ac4453d..717908b 100644
--- a/arch/x86/lguest/boot.c
+++ b/arch/x86/lguest/boot.c
@@ -868,7 +868,8 @@ static void __init lguest_init_IRQ(void)
 		/* Some systems map "vectors" to interrupts weirdly.  Not us! */
 		__this_cpu_write(vector_irq[i], i - FIRST_EXTERNAL_VECTOR);
 		if (i != SYSCALL_VECTOR)
-			set_intr_gate(i, interrupt[i - FIRST_EXTERNAL_VECTOR]);
+			set_intr_gate(i, irq_entries_start +
+					8 * (i - FIRST_EXTERNAL_VECTOR));
 	}
 
 	/*
@@ -1076,6 +1077,7 @@ static void lguest_load_sp0(struct tss_struct *tss,
 {
 	lazy_hcall3(LHCALL_SET_STACK, __KERNEL_DS | 0x1, thread->sp0,
 		   THREAD_SIZE / PAGE_SIZE);
+	tss->x86_tss.sp0 = thread->sp0;
 }
 
 /* Let's just say, I wouldn't do debugging under a Guest. */
diff --git a/arch/x86/lib/atomic64_cx8_32.S b/arch/x86/lib/atomic64_cx8_32.S
index f5cc9eb..082a851 100644
--- a/arch/x86/lib/atomic64_cx8_32.S
+++ b/arch/x86/lib/atomic64_cx8_32.S
@@ -13,16 +13,6 @@
 #include <asm/alternative-asm.h>
 #include <asm/dwarf2.h>
 
-.macro SAVE reg
-	pushl_cfi %\reg
-	CFI_REL_OFFSET \reg, 0
-.endm
-
-.macro RESTORE reg
-	popl_cfi %\reg
-	CFI_RESTORE \reg
-.endm
-
 .macro read64 reg
 	movl %ebx, %eax
 	movl %ecx, %edx
@@ -67,10 +57,10 @@ ENDPROC(atomic64_xchg_cx8)
 .macro addsub_return func ins insc
 ENTRY(atomic64_\func\()_return_cx8)
 	CFI_STARTPROC
-	SAVE ebp
-	SAVE ebx
-	SAVE esi
-	SAVE edi
+	pushl_cfi_reg ebp
+	pushl_cfi_reg ebx
+	pushl_cfi_reg esi
+	pushl_cfi_reg edi
 
 	movl %eax, %esi
 	movl %edx, %edi
@@ -89,10 +79,10 @@ ENTRY(atomic64_\func\()_return_cx8)
 10:
 	movl %ebx, %eax
 	movl %ecx, %edx
-	RESTORE edi
-	RESTORE esi
-	RESTORE ebx
-	RESTORE ebp
+	popl_cfi_reg edi
+	popl_cfi_reg esi
+	popl_cfi_reg ebx
+	popl_cfi_reg ebp
 	ret
 	CFI_ENDPROC
 ENDPROC(atomic64_\func\()_return_cx8)
@@ -104,7 +94,7 @@ addsub_return sub sub sbb
 .macro incdec_return func ins insc
 ENTRY(atomic64_\func\()_return_cx8)
 	CFI_STARTPROC
-	SAVE ebx
+	pushl_cfi_reg ebx
 
 	read64 %esi
 1:
@@ -119,7 +109,7 @@ ENTRY(atomic64_\func\()_return_cx8)
 10:
 	movl %ebx, %eax
 	movl %ecx, %edx
-	RESTORE ebx
+	popl_cfi_reg ebx
 	ret
 	CFI_ENDPROC
 ENDPROC(atomic64_\func\()_return_cx8)
@@ -130,7 +120,7 @@ incdec_return dec sub sbb
 
 ENTRY(atomic64_dec_if_positive_cx8)
 	CFI_STARTPROC
-	SAVE ebx
+	pushl_cfi_reg ebx
 
 	read64 %esi
 1:
@@ -146,18 +136,18 @@ ENTRY(atomic64_dec_if_positive_cx8)
 2:
 	movl %ebx, %eax
 	movl %ecx, %edx
-	RESTORE ebx
+	popl_cfi_reg ebx
 	ret
 	CFI_ENDPROC
 ENDPROC(atomic64_dec_if_positive_cx8)
 
 ENTRY(atomic64_add_unless_cx8)
 	CFI_STARTPROC
-	SAVE ebp
-	SAVE ebx
+	pushl_cfi_reg ebp
+	pushl_cfi_reg ebx
 /* these just push these two parameters on the stack */
-	SAVE edi
-	SAVE ecx
+	pushl_cfi_reg edi
+	pushl_cfi_reg ecx
 
 	movl %eax, %ebp
 	movl %edx, %edi
@@ -179,8 +169,8 @@ ENTRY(atomic64_add_unless_cx8)
 3:
 	addl $8, %esp
 	CFI_ADJUST_CFA_OFFSET -8
-	RESTORE ebx
-	RESTORE ebp
+	popl_cfi_reg ebx
+	popl_cfi_reg ebp
 	ret
 4:
 	cmpl %edx, 4(%esp)
@@ -192,7 +182,7 @@ ENDPROC(atomic64_add_unless_cx8)
 
 ENTRY(atomic64_inc_not_zero_cx8)
 	CFI_STARTPROC
-	SAVE ebx
+	pushl_cfi_reg ebx
 
 	read64 %esi
 1:
@@ -209,7 +199,7 @@ ENTRY(atomic64_inc_not_zero_cx8)
 
 	movl $1, %eax
 3:
-	RESTORE ebx
+	popl_cfi_reg ebx
 	ret
 	CFI_ENDPROC
 ENDPROC(atomic64_inc_not_zero_cx8)
diff --git a/arch/x86/lib/checksum_32.S b/arch/x86/lib/checksum_32.S
index e78b8ee..9bc944a 100644
--- a/arch/x86/lib/checksum_32.S
+++ b/arch/x86/lib/checksum_32.S
@@ -51,10 +51,8 @@ unsigned int csum_partial(const unsigned char * buff, int len, unsigned int sum)
 	   */		
 ENTRY(csum_partial)
 	CFI_STARTPROC
-	pushl_cfi %esi
-	CFI_REL_OFFSET esi, 0
-	pushl_cfi %ebx
-	CFI_REL_OFFSET ebx, 0
+	pushl_cfi_reg esi
+	pushl_cfi_reg ebx
 	movl 20(%esp),%eax	# Function arg: unsigned int sum
 	movl 16(%esp),%ecx	# Function arg: int len
 	movl 12(%esp),%esi	# Function arg: unsigned char *buff
@@ -127,14 +125,12 @@ ENTRY(csum_partial)
 6:	addl %ecx,%eax
 	adcl $0, %eax 
 7:	
-	testl $1, 12(%esp)
+	testb $1, 12(%esp)
 	jz 8f
 	roll $8, %eax
 8:
-	popl_cfi %ebx
-	CFI_RESTORE ebx
-	popl_cfi %esi
-	CFI_RESTORE esi
+	popl_cfi_reg ebx
+	popl_cfi_reg esi
 	ret
 	CFI_ENDPROC
 ENDPROC(csum_partial)
@@ -145,10 +141,8 @@ ENDPROC(csum_partial)
 
 ENTRY(csum_partial)
 	CFI_STARTPROC
-	pushl_cfi %esi
-	CFI_REL_OFFSET esi, 0
-	pushl_cfi %ebx
-	CFI_REL_OFFSET ebx, 0
+	pushl_cfi_reg esi
+	pushl_cfi_reg ebx
 	movl 20(%esp),%eax	# Function arg: unsigned int sum
 	movl 16(%esp),%ecx	# Function arg: int len
 	movl 12(%esp),%esi	# Function arg:	const unsigned char *buf
@@ -251,14 +245,12 @@ ENTRY(csum_partial)
 	addl %ebx,%eax
 	adcl $0,%eax
 80: 
-	testl $1, 12(%esp)
+	testb $1, 12(%esp)
 	jz 90f
 	roll $8, %eax
 90: 
-	popl_cfi %ebx
-	CFI_RESTORE ebx
-	popl_cfi %esi
-	CFI_RESTORE esi
+	popl_cfi_reg ebx
+	popl_cfi_reg esi
 	ret
 	CFI_ENDPROC
 ENDPROC(csum_partial)
@@ -298,12 +290,9 @@ ENTRY(csum_partial_copy_generic)
 	CFI_STARTPROC
 	subl  $4,%esp	
 	CFI_ADJUST_CFA_OFFSET 4
-	pushl_cfi %edi
-	CFI_REL_OFFSET edi, 0
-	pushl_cfi %esi
-	CFI_REL_OFFSET esi, 0
-	pushl_cfi %ebx
-	CFI_REL_OFFSET ebx, 0
+	pushl_cfi_reg edi
+	pushl_cfi_reg esi
+	pushl_cfi_reg ebx
 	movl ARGBASE+16(%esp),%eax	# sum
 	movl ARGBASE+12(%esp),%ecx	# len
 	movl ARGBASE+4(%esp),%esi	# src
@@ -412,12 +401,9 @@ DST(	movb %cl, (%edi)	)
 
 .previous
 
-	popl_cfi %ebx
-	CFI_RESTORE ebx
-	popl_cfi %esi
-	CFI_RESTORE esi
-	popl_cfi %edi
-	CFI_RESTORE edi
+	popl_cfi_reg ebx
+	popl_cfi_reg esi
+	popl_cfi_reg edi
 	popl_cfi %ecx			# equivalent to addl $4,%esp
 	ret	
 	CFI_ENDPROC
@@ -441,12 +427,9 @@ ENDPROC(csum_partial_copy_generic)
 		
 ENTRY(csum_partial_copy_generic)
 	CFI_STARTPROC
-	pushl_cfi %ebx
-	CFI_REL_OFFSET ebx, 0
-	pushl_cfi %edi
-	CFI_REL_OFFSET edi, 0
-	pushl_cfi %esi
-	CFI_REL_OFFSET esi, 0
+	pushl_cfi_reg ebx
+	pushl_cfi_reg edi
+	pushl_cfi_reg esi
 	movl ARGBASE+4(%esp),%esi	#src
 	movl ARGBASE+8(%esp),%edi	#dst	
 	movl ARGBASE+12(%esp),%ecx	#len
@@ -506,12 +489,9 @@ DST(	movb %dl, (%edi)         )
 	jmp  7b			
 .previous				
 
-	popl_cfi %esi
-	CFI_RESTORE esi
-	popl_cfi %edi
-	CFI_RESTORE edi
-	popl_cfi %ebx
-	CFI_RESTORE ebx
+	popl_cfi_reg esi
+	popl_cfi_reg edi
+	popl_cfi_reg ebx
 	ret
 	CFI_ENDPROC
 ENDPROC(csum_partial_copy_generic)
diff --git a/arch/x86/lib/clear_page_64.S b/arch/x86/lib/clear_page_64.S
index f2145cf..e67e579 100644
--- a/arch/x86/lib/clear_page_64.S
+++ b/arch/x86/lib/clear_page_64.S
@@ -1,31 +1,35 @@
 #include <linux/linkage.h>
 #include <asm/dwarf2.h>
+#include <asm/cpufeature.h>
 #include <asm/alternative-asm.h>
 
 /*
- * Zero a page. 	
- * rdi	page
- */			
-ENTRY(clear_page_c)
+ * Most CPUs support enhanced REP MOVSB/STOSB instructions. It is
+ * recommended to use this when possible and we do use them by default.
+ * If enhanced REP MOVSB/STOSB is not available, try to use fast string.
+ * Otherwise, use original.
+ */
+
+/*
+ * Zero a page.
+ * %rdi	- page
+ */
+ENTRY(clear_page)
 	CFI_STARTPROC
+
+	ALTERNATIVE_2 "jmp clear_page_orig", "", X86_FEATURE_REP_GOOD, \
+		      "jmp clear_page_c_e", X86_FEATURE_ERMS
+
 	movl $4096/8,%ecx
 	xorl %eax,%eax
 	rep stosq
 	ret
 	CFI_ENDPROC
-ENDPROC(clear_page_c)
+ENDPROC(clear_page)
 
-ENTRY(clear_page_c_e)
+ENTRY(clear_page_orig)
 	CFI_STARTPROC
-	movl $4096,%ecx
-	xorl %eax,%eax
-	rep stosb
-	ret
-	CFI_ENDPROC
-ENDPROC(clear_page_c_e)
 
-ENTRY(clear_page)
-	CFI_STARTPROC
 	xorl   %eax,%eax
 	movl   $4096/64,%ecx
 	.p2align 4
@@ -45,29 +49,13 @@ ENTRY(clear_page)
 	nop
 	ret
 	CFI_ENDPROC
-.Lclear_page_end:
-ENDPROC(clear_page)
-
-	/*
-	 * Some CPUs support enhanced REP MOVSB/STOSB instructions.
-	 * It is recommended to use this when possible.
-	 * If enhanced REP MOVSB/STOSB is not available, try to use fast string.
-	 * Otherwise, use original function.
-	 *
-	 */
+ENDPROC(clear_page_orig)
 
-#include <asm/cpufeature.h>
-
-	.section .altinstr_replacement,"ax"
-1:	.byte 0xeb					/* jmp <disp8> */
-	.byte (clear_page_c - clear_page) - (2f - 1b)	/* offset */
-2:	.byte 0xeb					/* jmp <disp8> */
-	.byte (clear_page_c_e - clear_page) - (3f - 2b)	/* offset */
-3:
-	.previous
-	.section .altinstructions,"a"
-	altinstruction_entry clear_page,1b,X86_FEATURE_REP_GOOD,\
-			     .Lclear_page_end-clear_page, 2b-1b
-	altinstruction_entry clear_page,2b,X86_FEATURE_ERMS,   \
-			     .Lclear_page_end-clear_page,3b-2b
-	.previous
+ENTRY(clear_page_c_e)
+	CFI_STARTPROC
+	movl $4096,%ecx
+	xorl %eax,%eax
+	rep stosb
+	ret
+	CFI_ENDPROC
+ENDPROC(clear_page_c_e)
diff --git a/arch/x86/lib/copy_page_64.S b/arch/x86/lib/copy_page_64.S
index 176cca6..8239dbc 100644
--- a/arch/x86/lib/copy_page_64.S
+++ b/arch/x86/lib/copy_page_64.S
@@ -2,23 +2,26 @@
 
 #include <linux/linkage.h>
 #include <asm/dwarf2.h>
+#include <asm/cpufeature.h>
 #include <asm/alternative-asm.h>
 
+/*
+ * Some CPUs run faster using the string copy instructions (sane microcode).
+ * It is also a lot simpler. Use this when possible. But, don't use streaming
+ * copy unless the CPU indicates X86_FEATURE_REP_GOOD. Could vary the
+ * prefetch distance based on SMP/UP.
+ */
 	ALIGN
-copy_page_rep:
+ENTRY(copy_page)
 	CFI_STARTPROC
+	ALTERNATIVE "jmp copy_page_regs", "", X86_FEATURE_REP_GOOD
 	movl	$4096/8, %ecx
 	rep	movsq
 	ret
 	CFI_ENDPROC
-ENDPROC(copy_page_rep)
-
-/*
- *  Don't use streaming copy unless the CPU indicates X86_FEATURE_REP_GOOD.
- *  Could vary the prefetch distance based on SMP/UP.
-*/
+ENDPROC(copy_page)
 
-ENTRY(copy_page)
+ENTRY(copy_page_regs)
 	CFI_STARTPROC
 	subq	$2*8,	%rsp
 	CFI_ADJUST_CFA_OFFSET 2*8
@@ -90,21 +93,5 @@ ENTRY(copy_page)
 	addq	$2*8, %rsp
 	CFI_ADJUST_CFA_OFFSET -2*8
 	ret
-.Lcopy_page_end:
 	CFI_ENDPROC
-ENDPROC(copy_page)
-
-	/* Some CPUs run faster using the string copy instructions.
-	   It is also a lot simpler. Use this when possible */
-
-#include <asm/cpufeature.h>
-
-	.section .altinstr_replacement,"ax"
-1:	.byte 0xeb					/* jmp <disp8> */
-	.byte (copy_page_rep - copy_page) - (2f - 1b)	/* offset */
-2:
-	.previous
-	.section .altinstructions,"a"
-	altinstruction_entry copy_page, 1b, X86_FEATURE_REP_GOOD,	\
-		.Lcopy_page_end-copy_page, 2b-1b
-	.previous
+ENDPROC(copy_page_regs)
diff --git a/arch/x86/lib/copy_user_64.S b/arch/x86/lib/copy_user_64.S
index dee945d..fa997df 100644
--- a/arch/x86/lib/copy_user_64.S
+++ b/arch/x86/lib/copy_user_64.S
@@ -8,9 +8,6 @@
 
 #include <linux/linkage.h>
 #include <asm/dwarf2.h>
-
-#define FIX_ALIGNMENT 1
-
 #include <asm/current.h>
 #include <asm/asm-offsets.h>
 #include <asm/thread_info.h>
@@ -19,33 +16,7 @@
 #include <asm/asm.h>
 #include <asm/smap.h>
 
-/*
- * By placing feature2 after feature1 in altinstructions section, we logically
- * implement:
- * If CPU has feature2, jmp to alt2 is used
- * else if CPU has feature1, jmp to alt1 is used
- * else jmp to orig is used.
- */
-	.macro ALTERNATIVE_JUMP feature1,feature2,orig,alt1,alt2
-0:
-	.byte 0xe9	/* 32bit jump */
-	.long \orig-1f	/* by default jump to orig */
-1:
-	.section .altinstr_replacement,"ax"
-2:	.byte 0xe9			/* near jump with 32bit immediate */
-	.long \alt1-1b /* offset */   /* or alternatively to alt1 */
-3:	.byte 0xe9			/* near jump with 32bit immediate */
-	.long \alt2-1b /* offset */   /* or alternatively to alt2 */
-	.previous
-
-	.section .altinstructions,"a"
-	altinstruction_entry 0b,2b,\feature1,5,5
-	altinstruction_entry 0b,3b,\feature2,5,5
-	.previous
-	.endm
-
 	.macro ALIGN_DESTINATION
-#ifdef FIX_ALIGNMENT
 	/* check for bad alignment of destination */
 	movl %edi,%ecx
 	andl $7,%ecx
@@ -67,7 +38,6 @@
 
 	_ASM_EXTABLE(100b,103b)
 	_ASM_EXTABLE(101b,103b)
-#endif
 	.endm
 
 /* Standard copy_to_user with segment limit checking */
@@ -79,9 +49,11 @@ ENTRY(_copy_to_user)
 	jc bad_to_user
 	cmpq TI_addr_limit(%rax),%rcx
 	ja bad_to_user
-	ALTERNATIVE_JUMP X86_FEATURE_REP_GOOD,X86_FEATURE_ERMS,	\
-		copy_user_generic_unrolled,copy_user_generic_string,	\
-		copy_user_enhanced_fast_string
+	ALTERNATIVE_2 "jmp copy_user_generic_unrolled",		\
+		      "jmp copy_user_generic_string",		\
+		      X86_FEATURE_REP_GOOD,			\
+		      "jmp copy_user_enhanced_fast_string",	\
+		      X86_FEATURE_ERMS
 	CFI_ENDPROC
 ENDPROC(_copy_to_user)
 
@@ -94,9 +66,11 @@ ENTRY(_copy_from_user)
 	jc bad_from_user
 	cmpq TI_addr_limit(%rax),%rcx
 	ja bad_from_user
-	ALTERNATIVE_JUMP X86_FEATURE_REP_GOOD,X86_FEATURE_ERMS,	\
-		copy_user_generic_unrolled,copy_user_generic_string,	\
-		copy_user_enhanced_fast_string
+	ALTERNATIVE_2 "jmp copy_user_generic_unrolled",		\
+		      "jmp copy_user_generic_string",		\
+		      X86_FEATURE_REP_GOOD,			\
+		      "jmp copy_user_enhanced_fast_string",	\
+		      X86_FEATURE_ERMS
 	CFI_ENDPROC
 ENDPROC(_copy_from_user)
 
diff --git a/arch/x86/lib/csum-copy_64.S b/arch/x86/lib/csum-copy_64.S
index 2419d5f..9734182 100644
--- a/arch/x86/lib/csum-copy_64.S
+++ b/arch/x86/lib/csum-copy_64.S
@@ -196,7 +196,7 @@ ENTRY(csum_partial_copy_generic)
 
 	/* handle last odd byte */
 .Lhandle_1:
-	testl $1, %r10d
+	testb $1, %r10b
 	jz    .Lende
 	xorl  %ebx, %ebx
 	source
diff --git a/arch/x86/lib/insn.c b/arch/x86/lib/insn.c
index 1313ae6..8f72b33 100644
--- a/arch/x86/lib/insn.c
+++ b/arch/x86/lib/insn.c
@@ -52,6 +52,13 @@
  */
 void insn_init(struct insn *insn, const void *kaddr, int buf_len, int x86_64)
 {
+	/*
+	 * Instructions longer than MAX_INSN_SIZE (15 bytes) are invalid
+	 * even if the input buffer is long enough to hold them.
+	 */
+	if (buf_len > MAX_INSN_SIZE)
+		buf_len = MAX_INSN_SIZE;
+
 	memset(insn, 0, sizeof(*insn));
 	insn->kaddr = kaddr;
 	insn->end_kaddr = kaddr + buf_len;
@@ -164,6 +171,12 @@ found:
 				/* VEX.W overrides opnd_size */
 				insn->opnd_bytes = 8;
 		} else {
+			/*
+			 * For VEX2, fake VEX3-like byte#2.
+			 * Makes it easier to decode vex.W, vex.vvvv,
+			 * vex.L and vex.pp. Masking with 0x7f sets vex.W == 0.
+			 */
+			insn->vex_prefix.bytes[2] = b2 & 0x7f;
 			insn->vex_prefix.nbytes = 2;
 			insn->next_byte += 2;
 		}
diff --git a/arch/x86/lib/memcpy_64.S b/arch/x86/lib/memcpy_64.S
index 89b53c9..b046664 100644
--- a/arch/x86/lib/memcpy_64.S
+++ b/arch/x86/lib/memcpy_64.S
@@ -1,12 +1,20 @@
 /* Copyright 2002 Andi Kleen */
 
 #include <linux/linkage.h>
-
 #include <asm/cpufeature.h>
 #include <asm/dwarf2.h>
 #include <asm/alternative-asm.h>
 
 /*
+ * We build a jump to memcpy_orig by default which gets NOPped out on
+ * the majority of x86 CPUs which set REP_GOOD. In addition, CPUs which
+ * have the enhanced REP MOVSB/STOSB feature (ERMS), change those NOPs
+ * to a jmp to memcpy_erms which does the REP; MOVSB mem copy.
+ */
+
+.weak memcpy
+
+/*
  * memcpy - Copy a memory block.
  *
  * Input:
@@ -17,15 +25,11 @@
  * Output:
  * rax original destination
  */
+ENTRY(__memcpy)
+ENTRY(memcpy)
+	ALTERNATIVE_2 "jmp memcpy_orig", "", X86_FEATURE_REP_GOOD, \
+		      "jmp memcpy_erms", X86_FEATURE_ERMS
 
-/*
- * memcpy_c() - fast string ops (REP MOVSQ) based variant.
- *
- * This gets patched over the unrolled variant (below) via the
- * alternative instructions framework:
- */
-	.section .altinstr_replacement, "ax", @progbits
-.Lmemcpy_c:
 	movq %rdi, %rax
 	movq %rdx, %rcx
 	shrq $3, %rcx
@@ -34,29 +38,21 @@
 	movl %edx, %ecx
 	rep movsb
 	ret
-.Lmemcpy_e:
-	.previous
+ENDPROC(memcpy)
+ENDPROC(__memcpy)
 
 /*
- * memcpy_c_e() - enhanced fast string memcpy. This is faster and simpler than
- * memcpy_c. Use memcpy_c_e when possible.
- *
- * This gets patched over the unrolled variant (below) via the
- * alternative instructions framework:
+ * memcpy_erms() - enhanced fast string memcpy. This is faster and
+ * simpler than memcpy. Use memcpy_erms when possible.
  */
-	.section .altinstr_replacement, "ax", @progbits
-.Lmemcpy_c_e:
+ENTRY(memcpy_erms)
 	movq %rdi, %rax
 	movq %rdx, %rcx
 	rep movsb
 	ret
-.Lmemcpy_e_e:
-	.previous
-
-.weak memcpy
+ENDPROC(memcpy_erms)
 
-ENTRY(__memcpy)
-ENTRY(memcpy)
+ENTRY(memcpy_orig)
 	CFI_STARTPROC
 	movq %rdi, %rax
 
@@ -183,26 +179,4 @@ ENTRY(memcpy)
 .Lend:
 	retq
 	CFI_ENDPROC
-ENDPROC(memcpy)
-ENDPROC(__memcpy)
-
-	/*
-	 * Some CPUs are adding enhanced REP MOVSB/STOSB feature
-	 * If the feature is supported, memcpy_c_e() is the first choice.
-	 * If enhanced rep movsb copy is not available, use fast string copy
-	 * memcpy_c() when possible. This is faster and code is simpler than
-	 * original memcpy().
-	 * Otherwise, original memcpy() is used.
-	 * In .altinstructions section, ERMS feature is placed after REG_GOOD
-         * feature to implement the right patch order.
-	 *
-	 * Replace only beginning, memcpy is used to apply alternatives,
-	 * so it is silly to overwrite itself with nops - reboot is the
-	 * only outcome...
-	 */
-	.section .altinstructions, "a"
-	altinstruction_entry __memcpy,.Lmemcpy_c,X86_FEATURE_REP_GOOD,\
-			     .Lmemcpy_e-.Lmemcpy_c,.Lmemcpy_e-.Lmemcpy_c
-	altinstruction_entry __memcpy,.Lmemcpy_c_e,X86_FEATURE_ERMS, \
-			     .Lmemcpy_e_e-.Lmemcpy_c_e,.Lmemcpy_e_e-.Lmemcpy_c_e
-	.previous
+ENDPROC(memcpy_orig)
diff --git a/arch/x86/lib/memmove_64.S b/arch/x86/lib/memmove_64.S
index 9c4b530..0f8a0d0 100644
--- a/arch/x86/lib/memmove_64.S
+++ b/arch/x86/lib/memmove_64.S
@@ -5,7 +5,6 @@
  * This assembly file is re-written from memmove_64.c file.
  *	- Copyright 2011 Fenghua Yu <fenghua.yu@intel.com>
  */
-#define _STRING_C
 #include <linux/linkage.h>
 #include <asm/dwarf2.h>
 #include <asm/cpufeature.h>
@@ -44,6 +43,8 @@ ENTRY(__memmove)
 	jg 2f
 
 .Lmemmove_begin_forward:
+	ALTERNATIVE "", "movq %rdx, %rcx; rep movsb; retq", X86_FEATURE_ERMS
+
 	/*
 	 * movsq instruction have many startup latency
 	 * so we handle small size by general register.
@@ -207,21 +208,5 @@ ENTRY(__memmove)
 13:
 	retq
 	CFI_ENDPROC
-
-	.section .altinstr_replacement,"ax"
-.Lmemmove_begin_forward_efs:
-	/* Forward moving data. */
-	movq %rdx, %rcx
-	rep movsb
-	retq
-.Lmemmove_end_forward_efs:
-	.previous
-
-	.section .altinstructions,"a"
-	altinstruction_entry .Lmemmove_begin_forward,		\
-		.Lmemmove_begin_forward_efs,X86_FEATURE_ERMS,	\
-		.Lmemmove_end_forward-.Lmemmove_begin_forward,	\
-		.Lmemmove_end_forward_efs-.Lmemmove_begin_forward_efs
-	.previous
 ENDPROC(__memmove)
 ENDPROC(memmove)
diff --git a/arch/x86/lib/memset_64.S b/arch/x86/lib/memset_64.S
index 6f44935..93118fb 100644
--- a/arch/x86/lib/memset_64.S
+++ b/arch/x86/lib/memset_64.S
@@ -5,19 +5,30 @@
 #include <asm/cpufeature.h>
 #include <asm/alternative-asm.h>
 
+.weak memset
+
 /*
  * ISO C memset - set a memory block to a byte value. This function uses fast
  * string to get better performance than the original function. The code is
  * simpler and shorter than the orignal function as well.
- *	
+ *
  * rdi   destination
- * rsi   value (char) 
- * rdx   count (bytes) 
- * 
+ * rsi   value (char)
+ * rdx   count (bytes)
+ *
  * rax   original destination
- */	
-	.section .altinstr_replacement, "ax", @progbits
-.Lmemset_c:
+ */
+ENTRY(memset)
+ENTRY(__memset)
+	/*
+	 * Some CPUs support enhanced REP MOVSB/STOSB feature. It is recommended
+	 * to use it when possible. If not available, use fast string instructions.
+	 *
+	 * Otherwise, use original memset function.
+	 */
+	ALTERNATIVE_2 "jmp memset_orig", "", X86_FEATURE_REP_GOOD, \
+		      "jmp memset_erms", X86_FEATURE_ERMS
+
 	movq %rdi,%r9
 	movq %rdx,%rcx
 	andl $7,%edx
@@ -31,8 +42,8 @@
 	rep stosb
 	movq %r9,%rax
 	ret
-.Lmemset_e:
-	.previous
+ENDPROC(memset)
+ENDPROC(__memset)
 
 /*
  * ISO C memset - set a memory block to a byte value. This function uses
@@ -45,21 +56,16 @@
  *
  * rax   original destination
  */
-	.section .altinstr_replacement, "ax", @progbits
-.Lmemset_c_e:
+ENTRY(memset_erms)
 	movq %rdi,%r9
 	movb %sil,%al
 	movq %rdx,%rcx
 	rep stosb
 	movq %r9,%rax
 	ret
-.Lmemset_e_e:
-	.previous
-
-.weak memset
+ENDPROC(memset_erms)
 
-ENTRY(memset)
-ENTRY(__memset)
+ENTRY(memset_orig)
 	CFI_STARTPROC
 	movq %rdi,%r10
 
@@ -134,23 +140,4 @@ ENTRY(__memset)
 	jmp .Lafter_bad_alignment
 .Lfinal:
 	CFI_ENDPROC
-ENDPROC(memset)
-ENDPROC(__memset)
-
-	/* Some CPUs support enhanced REP MOVSB/STOSB feature.
-	 * It is recommended to use this when possible.
-	 *
-	 * If enhanced REP MOVSB/STOSB feature is not available, use fast string
-	 * instructions.
-	 *
-	 * Otherwise, use original memset function.
-	 *
-	 * In .altinstructions section, ERMS feature is placed after REG_GOOD
-         * feature to implement the right patch order.
-	 */
-	.section .altinstructions,"a"
-	altinstruction_entry __memset,.Lmemset_c,X86_FEATURE_REP_GOOD,\
-			     .Lfinal-__memset,.Lmemset_e-.Lmemset_c
-	altinstruction_entry __memset,.Lmemset_c_e,X86_FEATURE_ERMS, \
-			     .Lfinal-__memset,.Lmemset_e_e-.Lmemset_c_e
-	.previous
+ENDPROC(memset_orig)
diff --git a/arch/x86/lib/msr-reg.S b/arch/x86/lib/msr-reg.S
index f6d13ee..3ca5218 100644
--- a/arch/x86/lib/msr-reg.S
+++ b/arch/x86/lib/msr-reg.S
@@ -14,8 +14,8 @@
 .macro op_safe_regs op
 ENTRY(\op\()_safe_regs)
 	CFI_STARTPROC
-	pushq_cfi %rbx
-	pushq_cfi %rbp
+	pushq_cfi_reg rbx
+	pushq_cfi_reg rbp
 	movq	%rdi, %r10	/* Save pointer */
 	xorl	%r11d, %r11d	/* Return value */
 	movl    (%rdi), %eax
@@ -35,8 +35,8 @@ ENTRY(\op\()_safe_regs)
 	movl    %ebp, 20(%r10)
 	movl    %esi, 24(%r10)
 	movl    %edi, 28(%r10)
-	popq_cfi %rbp
-	popq_cfi %rbx
+	popq_cfi_reg rbp
+	popq_cfi_reg rbx
 	ret
 3:
 	CFI_RESTORE_STATE
@@ -53,10 +53,10 @@ ENDPROC(\op\()_safe_regs)
 .macro op_safe_regs op
 ENTRY(\op\()_safe_regs)
 	CFI_STARTPROC
-	pushl_cfi %ebx
-	pushl_cfi %ebp
-	pushl_cfi %esi
-	pushl_cfi %edi
+	pushl_cfi_reg ebx
+	pushl_cfi_reg ebp
+	pushl_cfi_reg esi
+	pushl_cfi_reg edi
 	pushl_cfi $0              /* Return value */
 	pushl_cfi %eax
 	movl    4(%eax), %ecx
@@ -80,10 +80,10 @@ ENTRY(\op\()_safe_regs)
 	movl    %esi, 24(%eax)
 	movl    %edi, 28(%eax)
 	popl_cfi %eax
-	popl_cfi %edi
-	popl_cfi %esi
-	popl_cfi %ebp
-	popl_cfi %ebx
+	popl_cfi_reg edi
+	popl_cfi_reg esi
+	popl_cfi_reg ebp
+	popl_cfi_reg ebx
 	ret
 3:
 	CFI_RESTORE_STATE
diff --git a/arch/x86/lib/rwsem.S b/arch/x86/lib/rwsem.S
index 5dff5f0..2322abe 100644
--- a/arch/x86/lib/rwsem.S
+++ b/arch/x86/lib/rwsem.S
@@ -34,10 +34,10 @@
  */
 
 #define save_common_regs \
-	pushl_cfi %ecx; CFI_REL_OFFSET ecx, 0
+	pushl_cfi_reg ecx
 
 #define restore_common_regs \
-	popl_cfi %ecx; CFI_RESTORE ecx
+	popl_cfi_reg ecx
 
 	/* Avoid uglifying the argument copying x86-64 needs to do. */
 	.macro movq src, dst
@@ -64,22 +64,22 @@
  */
 
 #define save_common_regs \
-	pushq_cfi %rdi; CFI_REL_OFFSET rdi, 0; \
-	pushq_cfi %rsi; CFI_REL_OFFSET rsi, 0; \
-	pushq_cfi %rcx; CFI_REL_OFFSET rcx, 0; \
-	pushq_cfi %r8;  CFI_REL_OFFSET r8,  0; \
-	pushq_cfi %r9;  CFI_REL_OFFSET r9,  0; \
-	pushq_cfi %r10; CFI_REL_OFFSET r10, 0; \
-	pushq_cfi %r11; CFI_REL_OFFSET r11, 0
+	pushq_cfi_reg rdi; \
+	pushq_cfi_reg rsi; \
+	pushq_cfi_reg rcx; \
+	pushq_cfi_reg r8;  \
+	pushq_cfi_reg r9;  \
+	pushq_cfi_reg r10; \
+	pushq_cfi_reg r11
 
 #define restore_common_regs \
-	popq_cfi %r11; CFI_RESTORE r11; \
-	popq_cfi %r10; CFI_RESTORE r10; \
-	popq_cfi %r9;  CFI_RESTORE r9; \
-	popq_cfi %r8;  CFI_RESTORE r8; \
-	popq_cfi %rcx; CFI_RESTORE rcx; \
-	popq_cfi %rsi; CFI_RESTORE rsi; \
-	popq_cfi %rdi; CFI_RESTORE rdi
+	popq_cfi_reg r11; \
+	popq_cfi_reg r10; \
+	popq_cfi_reg r9; \
+	popq_cfi_reg r8; \
+	popq_cfi_reg rcx; \
+	popq_cfi_reg rsi; \
+	popq_cfi_reg rdi
 
 #endif
 
@@ -87,12 +87,10 @@
 ENTRY(call_rwsem_down_read_failed)
 	CFI_STARTPROC
 	save_common_regs
-	__ASM_SIZE(push,_cfi) %__ASM_REG(dx)
-	CFI_REL_OFFSET __ASM_REG(dx), 0
+	__ASM_SIZE(push,_cfi_reg) __ASM_REG(dx)
 	movq %rax,%rdi
 	call rwsem_down_read_failed
-	__ASM_SIZE(pop,_cfi) %__ASM_REG(dx)
-	CFI_RESTORE __ASM_REG(dx)
+	__ASM_SIZE(pop,_cfi_reg) __ASM_REG(dx)
 	restore_common_regs
 	ret
 	CFI_ENDPROC
@@ -124,12 +122,10 @@ ENDPROC(call_rwsem_wake)
 ENTRY(call_rwsem_downgrade_wake)
 	CFI_STARTPROC
 	save_common_regs
-	__ASM_SIZE(push,_cfi) %__ASM_REG(dx)
-	CFI_REL_OFFSET __ASM_REG(dx), 0
+	__ASM_SIZE(push,_cfi_reg) __ASM_REG(dx)
 	movq %rax,%rdi
 	call rwsem_downgrade_wake
-	__ASM_SIZE(pop,_cfi) %__ASM_REG(dx)
-	CFI_RESTORE __ASM_REG(dx)
+	__ASM_SIZE(pop,_cfi_reg) __ASM_REG(dx)
 	restore_common_regs
 	ret
 	CFI_ENDPROC
diff --git a/arch/x86/lib/thunk_32.S b/arch/x86/lib/thunk_32.S
index e28cdaf..5eb7150 100644
--- a/arch/x86/lib/thunk_32.S
+++ b/arch/x86/lib/thunk_32.S
@@ -13,12 +13,9 @@
 	.globl \name
 \name:
 	CFI_STARTPROC
-	pushl_cfi %eax
-	CFI_REL_OFFSET eax, 0
-	pushl_cfi %ecx
-	CFI_REL_OFFSET ecx, 0
-	pushl_cfi %edx
-	CFI_REL_OFFSET edx, 0
+	pushl_cfi_reg eax
+	pushl_cfi_reg ecx
+	pushl_cfi_reg edx
 
 	.if \put_ret_addr_in_eax
 	/* Place EIP in the arg1 */
@@ -26,12 +23,9 @@
 	.endif
 
 	call \func
-	popl_cfi %edx
-	CFI_RESTORE edx
-	popl_cfi %ecx
-	CFI_RESTORE ecx
-	popl_cfi %eax
-	CFI_RESTORE eax
+	popl_cfi_reg edx
+	popl_cfi_reg ecx
+	popl_cfi_reg eax
 	ret
 	CFI_ENDPROC
 	_ASM_NOKPROBE(\name)
diff --git a/arch/x86/lib/thunk_64.S b/arch/x86/lib/thunk_64.S
index b30b5eb..f89ba4e9 100644
--- a/arch/x86/lib/thunk_64.S
+++ b/arch/x86/lib/thunk_64.S
@@ -17,9 +17,18 @@
 	CFI_STARTPROC
 
 	/* this one pushes 9 elems, the next one would be %rIP */
-	SAVE_ARGS
+	pushq_cfi_reg rdi
+	pushq_cfi_reg rsi
+	pushq_cfi_reg rdx
+	pushq_cfi_reg rcx
+	pushq_cfi_reg rax
+	pushq_cfi_reg r8
+	pushq_cfi_reg r9
+	pushq_cfi_reg r10
+	pushq_cfi_reg r11
 
 	.if \put_ret_addr_in_rdi
+	/* 9*8(%rsp) is return addr on stack */
 	movq_cfi_restore 9*8, rdi
 	.endif
 
@@ -45,11 +54,22 @@
 #endif
 #endif
 
-	/* SAVE_ARGS below is used only for the .cfi directives it contains. */
+#if defined(CONFIG_TRACE_IRQFLAGS) \
+ || defined(CONFIG_DEBUG_LOCK_ALLOC) \
+ || defined(CONFIG_PREEMPT)
 	CFI_STARTPROC
-	SAVE_ARGS
+	CFI_ADJUST_CFA_OFFSET 9*8
 restore:
-	RESTORE_ARGS
+	popq_cfi_reg r11
+	popq_cfi_reg r10
+	popq_cfi_reg r9
+	popq_cfi_reg r8
+	popq_cfi_reg rax
+	popq_cfi_reg rcx
+	popq_cfi_reg rdx
+	popq_cfi_reg rsi
+	popq_cfi_reg rdi
 	ret
 	CFI_ENDPROC
 	_ASM_NOKPROBE(restore)
+#endif
diff --git a/arch/x86/lib/usercopy_64.c b/arch/x86/lib/usercopy_64.c
index c905e89..1f33b3d 100644
--- a/arch/x86/lib/usercopy_64.c
+++ b/arch/x86/lib/usercopy_64.c
@@ -69,21 +69,20 @@ EXPORT_SYMBOL(copy_in_user);
  * it is not necessary to optimize tail handling.
  */
 __visible unsigned long
-copy_user_handle_tail(char *to, char *from, unsigned len, unsigned zerorest)
+copy_user_handle_tail(char *to, char *from, unsigned len)
 {
-	char c;
-	unsigned zero_len;
-
 	for (; len; --len, to++) {
+		char c;
+
 		if (__get_user_nocheck(c, from++, sizeof(char)))
 			break;
 		if (__put_user_nocheck(c, to, sizeof(char)))
 			break;
 	}
-
-	for (c = 0, zero_len = len; zerorest && zero_len; --zero_len)
-		if (__put_user_nocheck(c, to++, sizeof(char)))
-			break;
 	clac();
+
+	/* If the destination is a kernel buffer, we always clear the end */
+	if ((unsigned long)to >= TASK_SIZE_MAX)
+		memset(to, 0, len);
 	return len;
 }
diff --git a/arch/x86/lib/x86-opcode-map.txt b/arch/x86/lib/x86-opcode-map.txt
index 1a2be7c..816488c 100644
--- a/arch/x86/lib/x86-opcode-map.txt
+++ b/arch/x86/lib/x86-opcode-map.txt
@@ -273,6 +273,9 @@ dd: ESC
 de: ESC
 df: ESC
 # 0xe0 - 0xef
+# Note: "forced64" is Intel CPU behavior: they ignore 0x66 prefix
+# in 64-bit mode. AMD CPUs accept 0x66 prefix, it causes RIP truncation
+# to 16 bits. In 32-bit mode, 0x66 is accepted by both Intel and AMD.
 e0: LOOPNE/LOOPNZ Jb (f64)
 e1: LOOPE/LOOPZ Jb (f64)
 e2: LOOP Jb (f64)
@@ -281,6 +284,10 @@ e4: IN AL,Ib
 e5: IN eAX,Ib
 e6: OUT Ib,AL
 e7: OUT Ib,eAX
+# With 0x66 prefix in 64-bit mode, for AMD CPUs immediate offset
+# in "near" jumps and calls is 16-bit. For CALL,
+# push of return address is 16-bit wide, RSP is decremented by 2
+# but is not truncated to 16 bits, unlike RIP.
 e8: CALL Jz (f64)
 e9: JMP-near Jz (f64)
 ea: JMP-far Ap (i64)
@@ -456,6 +463,7 @@ AVXcode: 1
 7e: movd/q Ey,Pd | vmovd/q Ey,Vy (66),(v1) | vmovq Vq,Wq (F3),(v1)
 7f: movq Qq,Pq | vmovdqa Wx,Vx (66) | vmovdqu Wx,Vx (F3)
 # 0x0f 0x80-0x8f
+# Note: "forced64" is Intel CPU behavior (see comment about CALL insn).
 80: JO Jz (f64)
 81: JNO Jz (f64)
 82: JB/JC/JNAE Jz (f64)
@@ -842,6 +850,7 @@ EndTable
 GrpTable: Grp5
 0: INC Ev
 1: DEC Ev
+# Note: "forced64" is Intel CPU behavior (see comment about CALL insn).
 2: CALLN Ev (f64)
 3: CALLF Ep
 4: JMPN Ev (f64)
diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c
index ede025f..181c53b 100644
--- a/arch/x86/mm/fault.c
+++ b/arch/x86/mm/fault.c
@@ -59,7 +59,7 @@ static nokprobe_inline int kprobes_fault(struct pt_regs *regs)
 	int ret = 0;
 
 	/* kprobe_running() needs smp_processor_id() */
-	if (kprobes_built_in() && !user_mode_vm(regs)) {
+	if (kprobes_built_in() && !user_mode(regs)) {
 		preempt_disable();
 		if (kprobe_running() && kprobe_fault_handler(regs, 14))
 			ret = 1;
@@ -148,7 +148,7 @@ is_prefetch(struct pt_regs *regs, unsigned long error_code, unsigned long addr)
 	instr = (void *)convert_ip_to_linear(current, regs);
 	max_instr = instr + 15;
 
-	if (user_mode(regs) && instr >= (unsigned char *)TASK_SIZE)
+	if (user_mode(regs) && instr >= (unsigned char *)TASK_SIZE_MAX)
 		return 0;
 
 	while (instr < max_instr) {
@@ -1035,7 +1035,7 @@ static inline bool smap_violation(int error_code, struct pt_regs *regs)
 	if (error_code & PF_USER)
 		return false;
 
-	if (!user_mode_vm(regs) && (regs->flags & X86_EFLAGS_AC))
+	if (!user_mode(regs) && (regs->flags & X86_EFLAGS_AC))
 		return false;
 
 	return true;
@@ -1140,7 +1140,7 @@ __do_page_fault(struct pt_regs *regs, unsigned long error_code,
 	 * User-mode registers count as a user access even for any
 	 * potential system fault or CPU buglet:
 	 */
-	if (user_mode_vm(regs)) {
+	if (user_mode(regs)) {
 		local_irq_enable();
 		error_code |= PF_USER;
 		flags |= FAULT_FLAG_USER;
diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c
index a110efc..1d55318 100644
--- a/arch/x86/mm/init.c
+++ b/arch/x86/mm/init.c
@@ -29,29 +29,33 @@
 
 /*
  * Tables translating between page_cache_type_t and pte encoding.
- * Minimal supported modes are defined statically, modified if more supported
- * cache modes are available.
- * Index into __cachemode2pte_tbl is the cachemode.
- * Index into __pte2cachemode_tbl are the caching attribute bits of the pte
- * (_PAGE_PWT, _PAGE_PCD, _PAGE_PAT) at index bit positions 0, 1, 2.
+ *
+ * Minimal supported modes are defined statically, they are modified
+ * during bootup if more supported cache modes are available.
+ *
+ *   Index into __cachemode2pte_tbl[] is the cachemode.
+ *
+ *   Index into __pte2cachemode_tbl[] are the caching attribute bits of the pte
+ *   (_PAGE_PWT, _PAGE_PCD, _PAGE_PAT) at index bit positions 0, 1, 2.
  */
 uint16_t __cachemode2pte_tbl[_PAGE_CACHE_MODE_NUM] = {
-	[_PAGE_CACHE_MODE_WB]		= 0,
-	[_PAGE_CACHE_MODE_WC]		= _PAGE_PWT,
-	[_PAGE_CACHE_MODE_UC_MINUS]	= _PAGE_PCD,
-	[_PAGE_CACHE_MODE_UC]		= _PAGE_PCD | _PAGE_PWT,
-	[_PAGE_CACHE_MODE_WT]		= _PAGE_PCD,
-	[_PAGE_CACHE_MODE_WP]		= _PAGE_PCD,
+	[_PAGE_CACHE_MODE_WB      ]	= 0         | 0        ,
+	[_PAGE_CACHE_MODE_WC      ]	= _PAGE_PWT | 0        ,
+	[_PAGE_CACHE_MODE_UC_MINUS]	= 0         | _PAGE_PCD,
+	[_PAGE_CACHE_MODE_UC      ]	= _PAGE_PWT | _PAGE_PCD,
+	[_PAGE_CACHE_MODE_WT      ]	= 0         | _PAGE_PCD,
+	[_PAGE_CACHE_MODE_WP      ]	= 0         | _PAGE_PCD,
 };
 EXPORT_SYMBOL(__cachemode2pte_tbl);
+
 uint8_t __pte2cachemode_tbl[8] = {
-	[__pte2cm_idx(0)] = _PAGE_CACHE_MODE_WB,
-	[__pte2cm_idx(_PAGE_PWT)] = _PAGE_CACHE_MODE_WC,
-	[__pte2cm_idx(_PAGE_PCD)] = _PAGE_CACHE_MODE_UC_MINUS,
-	[__pte2cm_idx(_PAGE_PWT | _PAGE_PCD)] = _PAGE_CACHE_MODE_UC,
-	[__pte2cm_idx(_PAGE_PAT)] = _PAGE_CACHE_MODE_WB,
-	[__pte2cm_idx(_PAGE_PWT | _PAGE_PAT)] = _PAGE_CACHE_MODE_WC,
-	[__pte2cm_idx(_PAGE_PCD | _PAGE_PAT)] = _PAGE_CACHE_MODE_UC_MINUS,
+	[__pte2cm_idx( 0        | 0         | 0        )] = _PAGE_CACHE_MODE_WB,
+	[__pte2cm_idx(_PAGE_PWT | 0         | 0        )] = _PAGE_CACHE_MODE_WC,
+	[__pte2cm_idx( 0        | _PAGE_PCD | 0        )] = _PAGE_CACHE_MODE_UC_MINUS,
+	[__pte2cm_idx(_PAGE_PWT | _PAGE_PCD | 0        )] = _PAGE_CACHE_MODE_UC,
+	[__pte2cm_idx( 0        | 0         | _PAGE_PAT)] = _PAGE_CACHE_MODE_WB,
+	[__pte2cm_idx(_PAGE_PWT | 0         | _PAGE_PAT)] = _PAGE_CACHE_MODE_WC,
+	[__pte2cm_idx(0         | _PAGE_PCD | _PAGE_PAT)] = _PAGE_CACHE_MODE_UC_MINUS,
 	[__pte2cm_idx(_PAGE_PWT | _PAGE_PCD | _PAGE_PAT)] = _PAGE_CACHE_MODE_UC,
 };
 EXPORT_SYMBOL(__pte2cachemode_tbl);
@@ -131,21 +135,7 @@ void  __init early_alloc_pgt_buf(void)
 
 int after_bootmem;
 
-int direct_gbpages
-#ifdef CONFIG_DIRECT_GBPAGES
-				= 1
-#endif
-;
-
-static void __init init_gbpages(void)
-{
-#ifdef CONFIG_X86_64
-	if (direct_gbpages && cpu_has_gbpages)
-		printk(KERN_INFO "Using GB pages for direct mapping\n");
-	else
-		direct_gbpages = 0;
-#endif
-}
+early_param_on_off("gbpages", "nogbpages", direct_gbpages, CONFIG_X86_DIRECT_GBPAGES);
 
 struct map_range {
 	unsigned long start;
@@ -157,16 +147,12 @@ static int page_size_mask;
 
 static void __init probe_page_size_mask(void)
 {
-	init_gbpages();
-
 #if !defined(CONFIG_DEBUG_PAGEALLOC) && !defined(CONFIG_KMEMCHECK)
 	/*
 	 * For CONFIG_DEBUG_PAGEALLOC, identity mapping will use small pages.
 	 * This will simplify cpa(), which otherwise needs to support splitting
 	 * large pages into small in interrupt context, etc.
 	 */
-	if (direct_gbpages)
-		page_size_mask |= 1 << PG_LEVEL_1G;
 	if (cpu_has_pse)
 		page_size_mask |= 1 << PG_LEVEL_2M;
 #endif
@@ -179,6 +165,15 @@ static void __init probe_page_size_mask(void)
 	if (cpu_has_pge) {
 		cr4_set_bits_and_update_boot(X86_CR4_PGE);
 		__supported_pte_mask |= _PAGE_GLOBAL;
+	} else
+		__supported_pte_mask &= ~_PAGE_GLOBAL;
+
+	/* Enable 1 GB linear kernel mappings if available: */
+	if (direct_gbpages && cpu_has_gbpages) {
+		printk(KERN_INFO "Using GB pages for direct mapping\n");
+		page_size_mask |= 1 << PG_LEVEL_1G;
+	} else {
+		direct_gbpages = 0;
 	}
 }
 
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index 30eb05a..3fba623 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -130,20 +130,6 @@ int kernel_ident_mapping_init(struct x86_mapping_info *info, pgd_t *pgd_page,
 	return 0;
 }
 
-static int __init parse_direct_gbpages_off(char *arg)
-{
-	direct_gbpages = 0;
-	return 0;
-}
-early_param("nogbpages", parse_direct_gbpages_off);
-
-static int __init parse_direct_gbpages_on(char *arg)
-{
-	direct_gbpages = 1;
-	return 0;
-}
-early_param("gbpages", parse_direct_gbpages_on);
-
 /*
  * NOTE: pagetable_init alloc all the fixmap pagetables contiguous on the
  * physical space so we can cache the place of the first one and move
diff --git a/arch/x86/mm/numa.c b/arch/x86/mm/numa.c
index cd4785b..4053bb5 100644
--- a/arch/x86/mm/numa.c
+++ b/arch/x86/mm/numa.c
@@ -482,9 +482,16 @@ static void __init numa_clear_kernel_node_hotplug(void)
 				  &memblock.reserved, mb->nid);
 	}
 
-	/* Mark all kernel nodes. */
+	/*
+	 * Mark all kernel nodes.
+	 *
+	 * When booting with mem=nn[kMG] or in a kdump kernel, numa_meminfo
+	 * may not include all the memblock.reserved memory ranges because
+	 * trim_snb_memory() reserves specific pages for Sandy Bridge graphics.
+	 */
 	for_each_memblock(reserved, r)
-		node_set(r->nid, numa_kernel_nodes);
+		if (r->nid != MAX_NUMNODES)
+			node_set(r->nid, numa_kernel_nodes);
 
 	/* Clear MEMBLOCK_HOTPLUG flag for memory in kernel nodes. */
 	for (i = 0; i < numa_meminfo.nr_blks; i++) {
diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index 536ea2f..89af288 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -81,11 +81,9 @@ void arch_report_meminfo(struct seq_file *m)
 	seq_printf(m, "DirectMap4M:    %8lu kB\n",
 			direct_pages_count[PG_LEVEL_2M] << 12);
 #endif
-#ifdef CONFIG_X86_64
 	if (direct_gbpages)
 		seq_printf(m, "DirectMap1G:    %8lu kB\n",
 			direct_pages_count[PG_LEVEL_1G] << 20);
-#endif
 }
 #else
 static inline void split_page_count(int level) { }
@@ -1654,13 +1652,11 @@ int set_memory_ro(unsigned long addr, int numpages)
 {
 	return change_page_attr_clear(&addr, numpages, __pgprot(_PAGE_RW), 0);
 }
-EXPORT_SYMBOL_GPL(set_memory_ro);
 
 int set_memory_rw(unsigned long addr, int numpages)
 {
 	return change_page_attr_set(&addr, numpages, __pgprot(_PAGE_RW), 0);
 }
-EXPORT_SYMBOL_GPL(set_memory_rw);
 
 int set_memory_np(unsigned long addr, int numpages)
 {
diff --git a/arch/x86/mm/pat.c b/arch/x86/mm/pat.c
index 7ac6869..35af677 100644
--- a/arch/x86/mm/pat.c
+++ b/arch/x86/mm/pat.c
@@ -610,7 +610,7 @@ pgprot_t phys_mem_access_prot(struct file *file, unsigned long pfn,
 }
 
 #ifdef CONFIG_STRICT_DEVMEM
-/* This check is done in drivers/char/mem.c in case of STRICT_DEVMEM*/
+/* This check is done in drivers/char/mem.c in case of STRICT_DEVMEM */
 static inline int range_is_allowed(unsigned long pfn, unsigned long size)
 {
 	return 1;
@@ -628,8 +628,8 @@ static inline int range_is_allowed(unsigned long pfn, unsigned long size)
 
 	while (cursor < to) {
 		if (!devmem_is_allowed(pfn)) {
-			printk(KERN_INFO "Program %s tried to access /dev/mem between [mem %#010Lx-%#010Lx]\n",
-				current->comm, from, to - 1);
+			printk(KERN_INFO "Program %s tried to access /dev/mem between [mem %#010Lx-%#010Lx], PAT prevents it\n",
+			       current->comm, from, to - 1);
 			return 0;
 		}
 		cursor += PAGE_SIZE;
diff --git a/arch/x86/mm/pgtable.c b/arch/x86/mm/pgtable.c
index 7b22ada..5a7e525 100644
--- a/arch/x86/mm/pgtable.c
+++ b/arch/x86/mm/pgtable.c
@@ -275,12 +275,87 @@ static void pgd_prepopulate_pmd(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmds[])
 	}
 }
 
+/*
+ * Xen paravirt assumes pgd table should be in one page. 64 bit kernel also
+ * assumes that pgd should be in one page.
+ *
+ * But kernel with PAE paging that is not running as a Xen domain
+ * only needs to allocate 32 bytes for pgd instead of one page.
+ */
+#ifdef CONFIG_X86_PAE
+
+#include <linux/slab.h>
+
+#define PGD_SIZE	(PTRS_PER_PGD * sizeof(pgd_t))
+#define PGD_ALIGN	32
+
+static struct kmem_cache *pgd_cache;
+
+static int __init pgd_cache_init(void)
+{
+	/*
+	 * When PAE kernel is running as a Xen domain, it does not use
+	 * shared kernel pmd. And this requires a whole page for pgd.
+	 */
+	if (!SHARED_KERNEL_PMD)
+		return 0;
+
+	/*
+	 * when PAE kernel is not running as a Xen domain, it uses
+	 * shared kernel pmd. Shared kernel pmd does not require a whole
+	 * page for pgd. We are able to just allocate a 32-byte for pgd.
+	 * During boot time, we create a 32-byte slab for pgd table allocation.
+	 */
+	pgd_cache = kmem_cache_create("pgd_cache", PGD_SIZE, PGD_ALIGN,
+				      SLAB_PANIC, NULL);
+	if (!pgd_cache)
+		return -ENOMEM;
+
+	return 0;
+}
+core_initcall(pgd_cache_init);
+
+static inline pgd_t *_pgd_alloc(void)
+{
+	/*
+	 * If no SHARED_KERNEL_PMD, PAE kernel is running as a Xen domain.
+	 * We allocate one page for pgd.
+	 */
+	if (!SHARED_KERNEL_PMD)
+		return (pgd_t *)__get_free_page(PGALLOC_GFP);
+
+	/*
+	 * Now PAE kernel is not running as a Xen domain. We can allocate
+	 * a 32-byte slab for pgd to save memory space.
+	 */
+	return kmem_cache_alloc(pgd_cache, PGALLOC_GFP);
+}
+
+static inline void _pgd_free(pgd_t *pgd)
+{
+	if (!SHARED_KERNEL_PMD)
+		free_page((unsigned long)pgd);
+	else
+		kmem_cache_free(pgd_cache, pgd);
+}
+#else
+static inline pgd_t *_pgd_alloc(void)
+{
+	return (pgd_t *)__get_free_page(PGALLOC_GFP);
+}
+
+static inline void _pgd_free(pgd_t *pgd)
+{
+	free_page((unsigned long)pgd);
+}
+#endif /* CONFIG_X86_PAE */
+
 pgd_t *pgd_alloc(struct mm_struct *mm)
 {
 	pgd_t *pgd;
 	pmd_t *pmds[PREALLOCATED_PMDS];
 
-	pgd = (pgd_t *)__get_free_page(PGALLOC_GFP);
+	pgd = _pgd_alloc();
 
 	if (pgd == NULL)
 		goto out;
@@ -310,7 +385,7 @@ pgd_t *pgd_alloc(struct mm_struct *mm)
 out_free_pmds:
 	free_pmds(mm, pmds);
 out_free_pgd:
-	free_page((unsigned long)pgd);
+	_pgd_free(pgd);
 out:
 	return NULL;
 }
@@ -320,7 +395,7 @@ void pgd_free(struct mm_struct *mm, pgd_t *pgd)
 	pgd_mop_up_pmds(mm, pgd);
 	pgd_dtor(pgd);
 	paravirt_pgd_free(mm, pgd);
-	free_page((unsigned long)pgd);
+	_pgd_free(pgd);
 }
 
 /*
diff --git a/arch/x86/oprofile/backtrace.c b/arch/x86/oprofile/backtrace.c
index 5d04be5..4e664bd 100644
--- a/arch/x86/oprofile/backtrace.c
+++ b/arch/x86/oprofile/backtrace.c
@@ -111,7 +111,7 @@ x86_backtrace(struct pt_regs * const regs, unsigned int depth)
 {
 	struct stack_frame *head = (struct stack_frame *)frame_pointer(regs);
 
-	if (!user_mode_vm(regs)) {
+	if (!user_mode(regs)) {
 		unsigned long stack = kernel_stack_pointer(regs);
 		if (depth)
 			dump_trace(NULL, regs, (unsigned long *)stack, 0,
diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c
index 6ac2738..e469598 100644
--- a/arch/x86/pci/acpi.c
+++ b/arch/x86/pci/acpi.c
@@ -331,7 +331,7 @@ static void probe_pci_root_info(struct pci_root_info *info,
 				struct list_head *list)
 {
 	int ret;
-	struct resource_entry *entry;
+	struct resource_entry *entry, *tmp;
 
 	sprintf(info->name, "PCI Bus %04x:%02x", domain, busnum);
 	info->bridge = device;
@@ -345,8 +345,13 @@ static void probe_pci_root_info(struct pci_root_info *info,
 		dev_dbg(&device->dev,
 			"no IO and memory resources present in _CRS\n");
 	else
-		resource_list_for_each_entry(entry, list)
-			entry->res->name = info->name;
+		resource_list_for_each_entry_safe(entry, tmp, list) {
+			if ((entry->res->flags & IORESOURCE_WINDOW) == 0 ||
+			    (entry->res->flags & IORESOURCE_DISABLED))
+				resource_list_destroy_entry(entry);
+			else
+				entry->res->name = info->name;
+		}
 }
 
 struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root)
diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c
index 3d2612b..8fd6f44 100644
--- a/arch/x86/pci/common.c
+++ b/arch/x86/pci/common.c
@@ -490,7 +490,9 @@ void pcibios_scan_root(int busnum)
 	if (!bus) {
 		pci_free_resource_list(&resources);
 		kfree(sd);
+		return;
 	}
+	pci_bus_add_devices(bus);
 }
 
 void __init pcibios_set_cache_line_size(void)
@@ -513,31 +515,6 @@ void __init pcibios_set_cache_line_size(void)
 	}
 }
 
-/*
- * Some device drivers assume dev->irq won't change after calling
- * pci_disable_device(). So delay releasing of IRQ resource to driver
- * unbinding time. Otherwise it will break PM subsystem and drivers
- * like xen-pciback etc.
- */
-static int pci_irq_notifier(struct notifier_block *nb, unsigned long action,
-			    void *data)
-{
-	struct pci_dev *dev = to_pci_dev(data);
-
-	if (action != BUS_NOTIFY_UNBOUND_DRIVER)
-		return NOTIFY_DONE;
-
-	if (pcibios_disable_irq)
-		pcibios_disable_irq(dev);
-
-	return NOTIFY_OK;
-}
-
-static struct notifier_block pci_irq_nb = {
-	.notifier_call = pci_irq_notifier,
-	.priority = INT_MIN,
-};
-
 int __init pcibios_init(void)
 {
 	if (!raw_pci_ops) {
@@ -550,9 +527,6 @@ int __init pcibios_init(void)
 
 	if (pci_bf_sort >= pci_force_bf)
 		pci_sort_breadthfirst();
-
-	bus_register_notifier(&pci_bus_type, &pci_irq_nb);
-
 	return 0;
 }
 
@@ -711,6 +685,12 @@ int pcibios_enable_device(struct pci_dev *dev, int mask)
 	return 0;
 }
 
+void pcibios_disable_device (struct pci_dev *dev)
+{
+	if (!pci_dev_msi_enabled(dev) && pcibios_disable_irq)
+		pcibios_disable_irq(dev);
+}
+
 int pci_ext_cfg_avail(void)
 {
 	if (raw_pci_ext_ops)
diff --git a/arch/x86/pci/intel_mid_pci.c b/arch/x86/pci/intel_mid_pci.c
index efb8493..852aa4c 100644
--- a/arch/x86/pci/intel_mid_pci.c
+++ b/arch/x86/pci/intel_mid_pci.c
@@ -234,10 +234,10 @@ static int intel_mid_pci_irq_enable(struct pci_dev *dev)
 
 static void intel_mid_pci_irq_disable(struct pci_dev *dev)
 {
-	if (dev->irq_managed && dev->irq > 0) {
+	if (!mp_should_keep_irq(&dev->dev) && dev->irq_managed &&
+	    dev->irq > 0) {
 		mp_unmap_irq(dev->irq);
 		dev->irq_managed = 0;
-		dev->irq = 0;
 	}
 }
 
diff --git a/arch/x86/pci/irq.c b/arch/x86/pci/irq.c
index e71b3db..5dc6ca5 100644
--- a/arch/x86/pci/irq.c
+++ b/arch/x86/pci/irq.c
@@ -1256,9 +1256,22 @@ static int pirq_enable_irq(struct pci_dev *dev)
 	return 0;
 }
 
+bool mp_should_keep_irq(struct device *dev)
+{
+	if (dev->power.is_prepared)
+		return true;
+#ifdef CONFIG_PM
+	if (dev->power.runtime_status == RPM_SUSPENDING)
+		return true;
+#endif
+
+	return false;
+}
+
 static void pirq_disable_irq(struct pci_dev *dev)
 {
-	if (io_apic_assign_pci_irqs && dev->irq_managed && dev->irq) {
+	if (io_apic_assign_pci_irqs && !mp_should_keep_irq(&dev->dev) &&
+	    dev->irq_managed && dev->irq) {
 		mp_unmap_irq(dev->irq);
 		dev->irq = 0;
 		dev->irq_managed = 0;
diff --git a/arch/x86/platform/efi/efi-bgrt.c b/arch/x86/platform/efi/efi-bgrt.c
index d143d21..d7f997f 100644
--- a/arch/x86/platform/efi/efi-bgrt.c
+++ b/arch/x86/platform/efi/efi-bgrt.c
@@ -67,7 +67,7 @@ void __init efi_bgrt_init(void)
 
 	image = efi_lookup_mapped_addr(bgrt_tab->image_address);
 	if (!image) {
-		image = early_memremap(bgrt_tab->image_address,
+		image = early_ioremap(bgrt_tab->image_address,
 				       sizeof(bmp_header));
 		ioremapped = true;
 		if (!image) {
@@ -89,7 +89,7 @@ void __init efi_bgrt_init(void)
 	}
 
 	if (ioremapped) {
-		image = early_memremap(bgrt_tab->image_address,
+		image = early_ioremap(bgrt_tab->image_address,
 				       bmp_header.size);
 		if (!image) {
 			pr_err("Ignoring BGRT: failed to map image memory\n");
diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c
index dbc8627..02744df 100644
--- a/arch/x86/platform/efi/efi.c
+++ b/arch/x86/platform/efi/efi.c
@@ -85,12 +85,20 @@ static efi_status_t __init phys_efi_set_virtual_address_map(
 	efi_memory_desc_t *virtual_map)
 {
 	efi_status_t status;
+	unsigned long flags;
+	pgd_t *save_pgd;
 
-	efi_call_phys_prolog();
+	save_pgd = efi_call_phys_prolog();
+
+	/* Disable interrupts around EFI calls: */
+	local_irq_save(flags);
 	status = efi_call_phys(efi_phys.set_virtual_address_map,
 			       memory_map_size, descriptor_size,
 			       descriptor_version, virtual_map);
-	efi_call_phys_epilog();
+	local_irq_restore(flags);
+
+	efi_call_phys_epilog(save_pgd);
+
 	return status;
 }
 
@@ -491,7 +499,8 @@ void __init efi_init(void)
 	if (efi_memmap_init())
 		return;
 
-	print_efi_memmap();
+	if (efi_enabled(EFI_DBG))
+		print_efi_memmap();
 }
 
 void __init efi_late_init(void)
@@ -939,6 +948,8 @@ static int __init arch_parse_efi_cmdline(char *str)
 {
 	if (parse_option_str(str, "old_map"))
 		set_bit(EFI_OLD_MEMMAP, &efi.flags);
+	if (parse_option_str(str, "debug"))
+		set_bit(EFI_DBG, &efi.flags);
 
 	return 0;
 }
diff --git a/arch/x86/platform/efi/efi_32.c b/arch/x86/platform/efi/efi_32.c
index 40e7cda..ed5b673 100644
--- a/arch/x86/platform/efi/efi_32.c
+++ b/arch/x86/platform/efi/efi_32.c
@@ -33,11 +33,10 @@
 
 /*
  * To make EFI call EFI runtime service in physical addressing mode we need
- * prolog/epilog before/after the invocation to disable interrupt, to
- * claim EFI runtime service handler exclusively and to duplicate a memory in
- * low memory space say 0 - 3G.
+ * prolog/epilog before/after the invocation to claim the EFI runtime service
+ * handler exclusively and to duplicate a memory mapping in low memory space,
+ * say 0 - 3G.
  */
-static unsigned long efi_rt_eflags;
 
 void efi_sync_low_kernel_mappings(void) {}
 void __init efi_dump_pagetable(void) {}
@@ -57,21 +56,24 @@ void __init efi_map_region(efi_memory_desc_t *md)
 void __init efi_map_region_fixed(efi_memory_desc_t *md) {}
 void __init parse_efi_setup(u64 phys_addr, u32 data_len) {}
 
-void __init efi_call_phys_prolog(void)
+pgd_t * __init efi_call_phys_prolog(void)
 {
 	struct desc_ptr gdt_descr;
+	pgd_t *save_pgd;
 
-	local_irq_save(efi_rt_eflags);
-
+	/* Current pgd is swapper_pg_dir, we'll restore it later: */
+	save_pgd = swapper_pg_dir;
 	load_cr3(initial_page_table);
 	__flush_tlb_all();
 
 	gdt_descr.address = __pa(get_cpu_gdt_table(0));
 	gdt_descr.size = GDT_SIZE - 1;
 	load_gdt(&gdt_descr);
+
+	return save_pgd;
 }
 
-void __init efi_call_phys_epilog(void)
+void __init efi_call_phys_epilog(pgd_t *save_pgd)
 {
 	struct desc_ptr gdt_descr;
 
@@ -79,10 +81,8 @@ void __init efi_call_phys_epilog(void)
 	gdt_descr.size = GDT_SIZE - 1;
 	load_gdt(&gdt_descr);
 
-	load_cr3(swapper_pg_dir);
+	load_cr3(save_pgd);
 	__flush_tlb_all();
-
-	local_irq_restore(efi_rt_eflags);
 }
 
 void __init efi_runtime_mkexec(void)
diff --git a/arch/x86/platform/efi/efi_64.c b/arch/x86/platform/efi/efi_64.c
index 17e80d8..a0ac0f9 100644
--- a/arch/x86/platform/efi/efi_64.c
+++ b/arch/x86/platform/efi/efi_64.c
@@ -41,9 +41,6 @@
 #include <asm/realmode.h>
 #include <asm/time.h>
 
-static pgd_t *save_pgd __initdata;
-static unsigned long efi_flags __initdata;
-
 /*
  * We allocate runtime services regions bottom-up, starting from -4G, i.e.
  * 0xffff_ffff_0000_0000 and limit EFI VA mapping space to 64G.
@@ -78,17 +75,18 @@ static void __init early_code_mapping_set_exec(int executable)
 	}
 }
 
-void __init efi_call_phys_prolog(void)
+pgd_t * __init efi_call_phys_prolog(void)
 {
 	unsigned long vaddress;
+	pgd_t *save_pgd;
+
 	int pgd;
 	int n_pgds;
 
 	if (!efi_enabled(EFI_OLD_MEMMAP))
-		return;
+		return NULL;
 
 	early_code_mapping_set_exec(1);
-	local_irq_save(efi_flags);
 
 	n_pgds = DIV_ROUND_UP((max_pfn << PAGE_SHIFT), PGDIR_SIZE);
 	save_pgd = kmalloc(n_pgds * sizeof(pgd_t), GFP_KERNEL);
@@ -99,24 +97,29 @@ void __init efi_call_phys_prolog(void)
 		set_pgd(pgd_offset_k(pgd * PGDIR_SIZE), *pgd_offset_k(vaddress));
 	}
 	__flush_tlb_all();
+
+	return save_pgd;
 }
 
-void __init efi_call_phys_epilog(void)
+void __init efi_call_phys_epilog(pgd_t *save_pgd)
 {
 	/*
 	 * After the lock is released, the original page table is restored.
 	 */
-	int pgd;
-	int n_pgds = DIV_ROUND_UP((max_pfn << PAGE_SHIFT) , PGDIR_SIZE);
+	int pgd_idx;
+	int nr_pgds;
 
-	if (!efi_enabled(EFI_OLD_MEMMAP))
+	if (!save_pgd)
 		return;
 
-	for (pgd = 0; pgd < n_pgds; pgd++)
-		set_pgd(pgd_offset_k(pgd * PGDIR_SIZE), save_pgd[pgd]);
+	nr_pgds = DIV_ROUND_UP((max_pfn << PAGE_SHIFT) , PGDIR_SIZE);
+
+	for (pgd_idx = 0; pgd_idx < nr_pgds; pgd_idx++)
+		set_pgd(pgd_offset_k(pgd_idx * PGDIR_SIZE), save_pgd[pgd_idx]);
+
 	kfree(save_pgd);
+
 	__flush_tlb_all();
-	local_irq_restore(efi_flags);
 	early_code_mapping_set_exec(0);
 }
 
diff --git a/arch/x86/platform/intel-mid/intel-mid.c b/arch/x86/platform/intel-mid/intel-mid.c
index 1bbedc4..3005f0c 100644
--- a/arch/x86/platform/intel-mid/intel-mid.c
+++ b/arch/x86/platform/intel-mid/intel-mid.c
@@ -130,7 +130,7 @@ static void intel_mid_arch_setup(void)
 		intel_mid_ops = get_intel_mid_ops[__intel_mid_cpu_chip]();
 	else {
 		intel_mid_ops = get_intel_mid_ops[INTEL_MID_CPU_CHIP_PENWELL]();
-		pr_info("ARCH: Uknown SoC, assuming PENWELL!\n");
+		pr_info("ARCH: Unknown SoC, assuming PENWELL!\n");
 	}
 
 out:
diff --git a/arch/x86/platform/intel-quark/imr_selftest.c b/arch/x86/platform/intel-quark/imr_selftest.c
index c9a0838..278e4da 100644
--- a/arch/x86/platform/intel-quark/imr_selftest.c
+++ b/arch/x86/platform/intel-quark/imr_selftest.c
@@ -11,6 +11,7 @@
  */
 
 #include <asm-generic/sections.h>
+#include <asm/cpu_device_id.h>
 #include <asm/imr.h>
 #include <linux/init.h>
 #include <linux/mm.h>
@@ -101,6 +102,12 @@ static void __init imr_self_test(void)
 	}
 }
 
+static const struct x86_cpu_id imr_ids[] __initconst = {
+	{ X86_VENDOR_INTEL, 5, 9 },	/* Intel Quark SoC X1000. */
+	{}
+};
+MODULE_DEVICE_TABLE(x86cpu, imr_ids);
+
 /**
  * imr_self_test_init - entry point for IMR driver.
  *
@@ -108,7 +115,8 @@ static void __init imr_self_test(void)
  */
 static int __init imr_self_test_init(void)
 {
-	imr_self_test();
+	if (x86_match_cpu(imr_ids))
+		imr_self_test();
 	return 0;
 }
 
diff --git a/arch/x86/platform/olpc/olpc-xo1-sci.c b/arch/x86/platform/olpc/olpc-xo1-sci.c
index 9a2e590..7fa8b3b 100644
--- a/arch/x86/platform/olpc/olpc-xo1-sci.c
+++ b/arch/x86/platform/olpc/olpc-xo1-sci.c
@@ -61,7 +61,7 @@ static void battery_status_changed(void)
 
 	if (psy) {
 		power_supply_changed(psy);
-		put_device(psy->dev);
+		power_supply_put(psy);
 	}
 }
 
@@ -71,7 +71,7 @@ static void ac_status_changed(void)
 
 	if (psy) {
 		power_supply_changed(psy);
-		put_device(psy->dev);
+		power_supply_put(psy);
 	}
 }
 
diff --git a/arch/x86/platform/olpc/olpc-xo15-sci.c b/arch/x86/platform/olpc/olpc-xo15-sci.c
index 08e350e..5513084 100644
--- a/arch/x86/platform/olpc/olpc-xo15-sci.c
+++ b/arch/x86/platform/olpc/olpc-xo15-sci.c
@@ -83,7 +83,7 @@ static void battery_status_changed(void)
 
 	if (psy) {
 		power_supply_changed(psy);
-		put_device(psy->dev);
+		power_supply_put(psy);
 	}
 }
 
@@ -93,7 +93,7 @@ static void ac_status_changed(void)
 
 	if (psy) {
 		power_supply_changed(psy);
-		put_device(psy->dev);
+		power_supply_put(psy);
 	}
 }
 
diff --git a/arch/x86/platform/uv/tlb_uv.c b/arch/x86/platform/uv/tlb_uv.c
index 9947985..3b6ec42 100644
--- a/arch/x86/platform/uv/tlb_uv.c
+++ b/arch/x86/platform/uv/tlb_uv.c
@@ -415,7 +415,7 @@ static void reset_with_ipi(struct pnmask *distribution, struct bau_control *bcp)
 	struct reset_args reset_args;
 
 	reset_args.sender = sender;
-	cpus_clear(*mask);
+	cpumask_clear(mask);
 	/* find a single cpu for each uvhub in this distribution mask */
 	maskbits = sizeof(struct pnmask) * BITSPERBYTE;
 	/* each bit is a pnode relative to the partition base pnode */
@@ -425,7 +425,7 @@ static void reset_with_ipi(struct pnmask *distribution, struct bau_control *bcp)
 			continue;
 		apnode = pnode + bcp->partition_base_pnode;
 		cpu = pnode_to_first_cpu(apnode, smaster);
-		cpu_set(cpu, *mask);
+		cpumask_set_cpu(cpu, mask);
 	}
 
 	/* IPI all cpus; preemption is already disabled */
@@ -1126,7 +1126,7 @@ const struct cpumask *uv_flush_tlb_others(const struct cpumask *cpumask,
 	/* don't actually do a shootdown of the local cpu */
 	cpumask_andnot(flush_mask, cpumask, cpumask_of(cpu));
 
-	if (cpu_isset(cpu, *cpumask))
+	if (cpumask_test_cpu(cpu, cpumask))
 		stat->s_ntargself++;
 
 	bau_desc = bcp->descriptor_base;
diff --git a/arch/x86/power/cpu.c b/arch/x86/power/cpu.c
index 3e32ed5..757678f 100644
--- a/arch/x86/power/cpu.c
+++ b/arch/x86/power/cpu.c
@@ -134,7 +134,7 @@ static void do_fpu_end(void)
 static void fix_processor_context(void)
 {
 	int cpu = smp_processor_id();
-	struct tss_struct *t = &per_cpu(init_tss, cpu);
+	struct tss_struct *t = &per_cpu(cpu_tss, cpu);
 #ifdef CONFIG_X86_64
 	struct desc_struct *desc = get_cpu_gdt_table(cpu);
 	tss_desc tss;
diff --git a/arch/x86/syscalls/syscall_32.tbl b/arch/x86/syscalls/syscall_32.tbl
index b3560ec..ef8187f 100644
--- a/arch/x86/syscalls/syscall_32.tbl
+++ b/arch/x86/syscalls/syscall_32.tbl
@@ -119,7 +119,7 @@
 110	i386	iopl			sys_iopl
 111	i386	vhangup			sys_vhangup
 112	i386	idle
-113	i386	vm86old			sys_vm86old			sys32_vm86_warning
+113	i386	vm86old			sys_vm86old			sys_ni_syscall
 114	i386	wait4			sys_wait4			compat_sys_wait4
 115	i386	swapoff			sys_swapoff
 116	i386	sysinfo			sys_sysinfo			compat_sys_sysinfo
@@ -172,7 +172,7 @@
 163	i386	mremap			sys_mremap
 164	i386	setresuid		sys_setresuid16
 165	i386	getresuid		sys_getresuid16
-166	i386	vm86			sys_vm86			sys32_vm86_warning
+166	i386	vm86			sys_vm86			sys_ni_syscall
 167	i386	query_module
 168	i386	poll			sys_poll
 169	i386	nfsservctl
diff --git a/arch/x86/syscalls/syscall_64.tbl b/arch/x86/syscalls/syscall_64.tbl
index 8d656fb..9ef32d5 100644
--- a/arch/x86/syscalls/syscall_64.tbl
+++ b/arch/x86/syscalls/syscall_64.tbl
@@ -178,7 +178,7 @@
 169	common	reboot			sys_reboot
 170	common	sethostname		sys_sethostname
 171	common	setdomainname		sys_setdomainname
-172	common	iopl			stub_iopl
+172	common	iopl			sys_iopl
 173	common	ioperm			sys_ioperm
 174	64	create_module
 175	common	init_module		sys_init_module
diff --git a/arch/x86/um/asm/barrier.h b/arch/x86/um/asm/barrier.h
index 2d7d9a1..8ffd214 100644
--- a/arch/x86/um/asm/barrier.h
+++ b/arch/x86/um/asm/barrier.h
@@ -64,8 +64,8 @@
  */
 static inline void rdtsc_barrier(void)
 {
-	alternative(ASM_NOP3, "mfence", X86_FEATURE_MFENCE_RDTSC);
-	alternative(ASM_NOP3, "lfence", X86_FEATURE_LFENCE_RDTSC);
+	alternative_2("", "mfence", X86_FEATURE_MFENCE_RDTSC,
+			  "lfence", X86_FEATURE_LFENCE_RDTSC);
 }
 
 #endif
diff --git a/arch/x86/um/sys_call_table_64.c b/arch/x86/um/sys_call_table_64.c
index 5cdfa9d..a75d8700 100644
--- a/arch/x86/um/sys_call_table_64.c
+++ b/arch/x86/um/sys_call_table_64.c
@@ -16,7 +16,7 @@
  */
 
 /* Not going to be implemented by UML, since we have no hardware. */
-#define stub_iopl sys_ni_syscall
+#define sys_iopl sys_ni_syscall
 #define sys_ioperm sys_ni_syscall
 
 /*
diff --git a/arch/x86/vdso/Makefile b/arch/x86/vdso/Makefile
index 7b9be98..275a3a8 100644
--- a/arch/x86/vdso/Makefile
+++ b/arch/x86/vdso/Makefile
@@ -51,7 +51,7 @@ VDSO_LDFLAGS_vdso.lds = -m64 -Wl,-soname=linux-vdso.so.1 \
 $(obj)/vdso64.so.dbg: $(src)/vdso.lds $(vobjs) FORCE
 	$(call if_changed,vdso)
 
-HOST_EXTRACFLAGS += -I$(srctree)/tools/include
+HOST_EXTRACFLAGS += -I$(srctree)/tools/include -I$(srctree)/include/uapi
 hostprogs-y			+= vdso2c
 
 quiet_cmd_vdso2c = VDSO2C  $@
@@ -206,4 +206,4 @@ $(vdso_img_insttargets): install_%: $(obj)/%.dbg $(MODLIB)/vdso FORCE
 PHONY += vdso_install $(vdso_img_insttargets)
 vdso_install: $(vdso_img_insttargets) FORCE
 
-clean-files := vdso32-syscall* vdso32-sysenter* vdso32-int80* vdso64*
+clean-files := vdso32-syscall* vdso32-sysenter* vdso32-int80* vdso64* vdso-image-*.c vdsox32.so*
diff --git a/arch/x86/vdso/vclock_gettime.c b/arch/x86/vdso/vclock_gettime.c
index 9793322..40d2473 100644
--- a/arch/x86/vdso/vclock_gettime.c
+++ b/arch/x86/vdso/vclock_gettime.c
@@ -82,18 +82,15 @@ static notrace cycle_t vread_pvclock(int *mode)
 	cycle_t ret;
 	u64 last;
 	u32 version;
+	u32 migrate_count;
 	u8 flags;
 	unsigned cpu, cpu1;
 
 
 	/*
-	 * Note: hypervisor must guarantee that:
-	 * 1. cpu ID number maps 1:1 to per-CPU pvclock time info.
-	 * 2. that per-CPU pvclock time info is updated if the
-	 *    underlying CPU changes.
-	 * 3. that version is increased whenever underlying CPU
-	 *    changes.
-	 *
+	 * When looping to get a consistent (time-info, tsc) pair, we
+	 * also need to deal with the possibility we can switch vcpus,
+	 * so make sure we always re-fetch time-info for the current vcpu.
 	 */
 	do {
 		cpu = __getcpu() & VGETCPU_CPU_MASK;
@@ -102,20 +99,27 @@ static notrace cycle_t vread_pvclock(int *mode)
 		 * __getcpu() calls (Gleb).
 		 */
 
-		pvti = get_pvti(cpu);
+		/* Make sure migrate_count will change if we leave the VCPU. */
+		do {
+			pvti = get_pvti(cpu);
+			migrate_count = pvti->migrate_count;
+
+			cpu1 = cpu;
+			cpu = __getcpu() & VGETCPU_CPU_MASK;
+		} while (unlikely(cpu != cpu1));
 
 		version = __pvclock_read_cycles(&pvti->pvti, &ret, &flags);
 
 		/*
 		 * Test we're still on the cpu as well as the version.
-		 * We could have been migrated just after the first
-		 * vgetcpu but before fetching the version, so we
-		 * wouldn't notice a version change.
+		 * - We must read TSC of pvti's VCPU.
+		 * - KVM doesn't follow the versioning protocol, so data could
+		 *   change before version if we left the VCPU.
 		 */
-		cpu1 = __getcpu() & VGETCPU_CPU_MASK;
-	} while (unlikely(cpu != cpu1 ||
-			  (pvti->pvti.version & 1) ||
-			  pvti->pvti.version != version));
+		smp_rmb();
+	} while (unlikely((pvti->pvti.version & 1) ||
+			  pvti->pvti.version != version ||
+			  pvti->migrate_count != migrate_count));
 
 	if (unlikely(!(flags & PVCLOCK_TSC_STABLE_BIT)))
 		*mode = VCLOCK_NONE;
diff --git a/arch/x86/vdso/vdso32/sigreturn.S b/arch/x86/vdso/vdso32/sigreturn.S
index 31776d0..d7ec4e2 100644
--- a/arch/x86/vdso/vdso32/sigreturn.S
+++ b/arch/x86/vdso/vdso32/sigreturn.S
@@ -17,6 +17,7 @@
 	.text
 	.globl __kernel_sigreturn
 	.type __kernel_sigreturn,@function
+	nop /* this guy is needed for .LSTARTFDEDLSI1 below (watch for HACK) */
 	ALIGN
 __kernel_sigreturn:
 .LSTART_sigreturn:
diff --git a/arch/x86/vdso/vdso32/syscall.S b/arch/x86/vdso/vdso32/syscall.S
index 5415b56..6b286bb 100644
--- a/arch/x86/vdso/vdso32/syscall.S
+++ b/arch/x86/vdso/vdso32/syscall.S
@@ -19,8 +19,6 @@ __kernel_vsyscall:
 .Lpush_ebp:
 	movl	%ecx, %ebp
 	syscall
-	movl	$__USER32_DS, %ecx
-	movl	%ecx, %ss
 	movl	%ebp, %ecx
 	popl	%ebp
 .Lpop_ebp:
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index bd8b845..81665c9 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -912,6 +912,7 @@ static void xen_load_sp0(struct tss_struct *tss,
 	mcs = xen_mc_entry(0);
 	MULTI_stack_switch(mcs.mc, __KERNEL_DS, thread->sp0);
 	xen_mc_issue(PARAVIRT_LAZY_CPU);
+	tss->x86_tss.sp0 = thread->sp0;
 }
 
 static void xen_set_iopl_mask(unsigned mask)
@@ -1070,6 +1071,23 @@ static inline void xen_write_cr8(unsigned long val)
 	BUG_ON(val);
 }
 #endif
+
+static u64 xen_read_msr_safe(unsigned int msr, int *err)
+{
+	u64 val;
+
+	val = native_read_msr_safe(msr, err);
+	switch (msr) {
+	case MSR_IA32_APICBASE:
+#ifdef CONFIG_X86_X2APIC
+		if (!(cpuid_ecx(1) & (1 << (X86_FEATURE_X2APIC & 31))))
+#endif
+			val &= ~X2APIC_ENABLE;
+		break;
+	}
+	return val;
+}
+
 static int xen_write_msr_safe(unsigned int msr, unsigned low, unsigned high)
 {
 	int ret;
@@ -1240,7 +1258,7 @@ static const struct pv_cpu_ops xen_cpu_ops __initconst = {
 
 	.wbinvd = native_wbinvd,
 
-	.read_msr = native_read_msr_safe,
+	.read_msr = xen_read_msr_safe,
 	.write_msr = xen_write_msr_safe,
 
 	.read_tsc = native_read_tsc,
@@ -1741,6 +1759,7 @@ asmlinkage __visible void __init xen_start_kernel(void)
 #ifdef CONFIG_X86_32
 	i386_start_kernel();
 #else
+	cr4_init_shadow(); /* 32b kernel does this in i386_start_kernel() */
 	x86_64_start_reservations((char *)__pa_symbol(&boot_params));
 #endif
 }
diff --git a/arch/x86/xen/p2m.c b/arch/x86/xen/p2m.c
index 740ae30..b47124d 100644
--- a/arch/x86/xen/p2m.c
+++ b/arch/x86/xen/p2m.c
@@ -91,6 +91,12 @@ EXPORT_SYMBOL_GPL(xen_p2m_size);
 unsigned long xen_max_p2m_pfn __read_mostly;
 EXPORT_SYMBOL_GPL(xen_max_p2m_pfn);
 
+#ifdef CONFIG_XEN_BALLOON_MEMORY_HOTPLUG_LIMIT
+#define P2M_LIMIT CONFIG_XEN_BALLOON_MEMORY_HOTPLUG_LIMIT
+#else
+#define P2M_LIMIT 0
+#endif
+
 static DEFINE_SPINLOCK(p2m_update_lock);
 
 static unsigned long *p2m_mid_missing_mfn;
@@ -385,9 +391,11 @@ static void __init xen_rebuild_p2m_list(unsigned long *p2m)
 void __init xen_vmalloc_p2m_tree(void)
 {
 	static struct vm_struct vm;
+	unsigned long p2m_limit;
 
+	p2m_limit = (phys_addr_t)P2M_LIMIT * 1024 * 1024 * 1024 / PAGE_SIZE;
 	vm.flags = VM_ALLOC;
-	vm.size = ALIGN(sizeof(unsigned long) * xen_max_p2m_pfn,
+	vm.size = ALIGN(sizeof(unsigned long) * max(xen_max_p2m_pfn, p2m_limit),
 			PMD_SIZE * PMDS_PER_MID_PAGE);
 	vm_area_register_early(&vm, PMD_SIZE * PMDS_PER_MID_PAGE);
 	pr_notice("p2m virtual area at %p, size is %lx\n", vm.addr, vm.size);
@@ -563,7 +571,7 @@ static bool alloc_p2m(unsigned long pfn)
 		if (p2m_pfn == PFN_DOWN(__pa(p2m_missing)))
 			p2m_init(p2m);
 		else
-			p2m_init_identity(p2m, pfn);
+			p2m_init_identity(p2m, pfn & ~(P2M_PER_PAGE - 1));
 
 		spin_lock_irqsave(&p2m_update_lock, flags);
 
diff --git a/arch/x86/xen/smp.c b/arch/x86/xen/smp.c
index 08e8489..7413ee3 100644
--- a/arch/x86/xen/smp.c
+++ b/arch/x86/xen/smp.c
@@ -445,15 +445,7 @@ static int xen_cpu_up(unsigned int cpu, struct task_struct *idle)
 {
 	int rc;
 
-	per_cpu(current_task, cpu) = idle;
-#ifdef CONFIG_X86_32
-	irq_ctx_init(cpu);
-#else
-	clear_tsk_thread_flag(idle, TIF_FORK);
-#endif
-	per_cpu(kernel_stack, cpu) =
-		(unsigned long)task_stack_page(idle) -
-		KERNEL_STACK_OFFSET + THREAD_SIZE;
+	common_cpu_up(cpu, idle);
 
 	xen_setup_runstate_info(cpu);
 	xen_setup_timer(cpu);
@@ -468,10 +460,6 @@ static int xen_cpu_up(unsigned int cpu, struct task_struct *idle)
 	if (rc)
 		return rc;
 
-	if (num_online_cpus() == 1)
-		/* Just in case we booted with a single CPU. */
-		alternatives_enable_smp();
-
 	rc = xen_smp_intr_init(cpu);
 	if (rc)
 		return rc;
diff --git a/arch/x86/xen/suspend.c b/arch/x86/xen/suspend.c
index c4df9db..d949769 100644
--- a/arch/x86/xen/suspend.c
+++ b/arch/x86/xen/suspend.c
@@ -1,5 +1,5 @@
 #include <linux/types.h>
-#include <linux/clockchips.h>
+#include <linux/tick.h>
 
 #include <xen/interface/xen.h>
 #include <xen/grant_table.h>
@@ -81,17 +81,14 @@ void xen_arch_post_suspend(int cancelled)
 
 static void xen_vcpu_notify_restore(void *data)
 {
-	unsigned long reason = (unsigned long)data;
-
 	/* Boot processor notified via generic timekeeping_resume() */
-	if ( smp_processor_id() == 0)
+	if (smp_processor_id() == 0)
 		return;
 
-	clockevents_notify(reason, NULL);
+	tick_resume_local();
 }
 
 void xen_arch_resume(void)
 {
-	on_each_cpu(xen_vcpu_notify_restore,
-		    (void *)CLOCK_EVT_NOTIFY_RESUME, 1);
+	on_each_cpu(xen_vcpu_notify_restore, NULL, 1);
 }
diff --git a/arch/x86/xen/xen-asm_64.S b/arch/x86/xen/xen-asm_64.S
index 53adefd..985fc3e 100644
--- a/arch/x86/xen/xen-asm_64.S
+++ b/arch/x86/xen/xen-asm_64.S
@@ -68,11 +68,11 @@ ENTRY(xen_sysret64)
 	 * We're already on the usermode stack at this point, but
 	 * still with the kernel gs, so we can easily switch back
 	 */
-	movq %rsp, PER_CPU_VAR(old_rsp)
+	movq %rsp, PER_CPU_VAR(rsp_scratch)
 	movq PER_CPU_VAR(kernel_stack), %rsp
 
 	pushq $__USER_DS
-	pushq PER_CPU_VAR(old_rsp)
+	pushq PER_CPU_VAR(rsp_scratch)
 	pushq %r11
 	pushq $__USER_CS
 	pushq %rcx
@@ -87,11 +87,11 @@ ENTRY(xen_sysret32)
 	 * We're already on the usermode stack at this point, but
 	 * still with the kernel gs, so we can easily switch back
 	 */
-	movq %rsp, PER_CPU_VAR(old_rsp)
+	movq %rsp, PER_CPU_VAR(rsp_scratch)
 	movq PER_CPU_VAR(kernel_stack), %rsp
 
 	pushq $__USER32_DS
-	pushq PER_CPU_VAR(old_rsp)
+	pushq PER_CPU_VAR(rsp_scratch)
 	pushq %r11
 	pushq $__USER32_CS
 	pushq %rcx
diff --git a/arch/xtensa/kernel/pci.c b/arch/xtensa/kernel/pci.c
index 5b34033..b848cc3 100644
--- a/arch/xtensa/kernel/pci.c
+++ b/arch/xtensa/kernel/pci.c
@@ -174,7 +174,7 @@ static int __init pcibios_init(void)
 	struct pci_controller *pci_ctrl;
 	struct list_head resources;
 	struct pci_bus *bus;
-	int next_busno = 0;
+	int next_busno = 0, ret;
 
 	printk("PCI: Probing PCI hardware\n");
 
@@ -185,14 +185,25 @@ static int __init pcibios_init(void)
 		pci_controller_apertures(pci_ctrl, &resources);
 		bus = pci_scan_root_bus(NULL, pci_ctrl->first_busno,
 					pci_ctrl->ops, pci_ctrl, &resources);
+		if (!bus)
+			continue;
+
 		pci_ctrl->bus = bus;
 		pci_ctrl->last_busno = bus->busn_res.end;
 		if (next_busno <= pci_ctrl->last_busno)
 			next_busno = pci_ctrl->last_busno+1;
 	}
 	pci_bus_count = next_busno;
+	ret = platform_pcibios_fixup();
+	if (ret)
+		return ret;
 
-	return platform_pcibios_fixup();
+	for (pci_ctrl = pci_ctrl_head; pci_ctrl; pci_ctrl = pci_ctrl->next) {
+		if (pci_ctrl->bus)
+			pci_bus_add_devices(pci_ctrl->bus);
+	}
+
+	return 0;
 }
 
 subsys_initcall(pcibios_init);
diff --git a/block/blk-merge.c b/block/blk-merge.c
index fc1ff3b..fd3fee8 100644
--- a/block/blk-merge.c
+++ b/block/blk-merge.c
@@ -592,7 +592,7 @@ bool blk_rq_merge_ok(struct request *rq, struct bio *bio)
 	if (q->queue_flags & (1 << QUEUE_FLAG_SG_GAPS)) {
 		struct bio_vec *bprev;
 
-		bprev = &rq->biotail->bi_io_vec[bio->bi_vcnt - 1];
+		bprev = &rq->biotail->bi_io_vec[rq->biotail->bi_vcnt - 1];
 		if (bvec_gap_to_prev(bprev, bio->bi_io_vec[0].bv_offset))
 			return false;
 	}
diff --git a/block/blk-mq-tag.c b/block/blk-mq-tag.c
index d53a764..be3290c 100644
--- a/block/blk-mq-tag.c
+++ b/block/blk-mq-tag.c
@@ -278,9 +278,11 @@ static int bt_get(struct blk_mq_alloc_data *data,
 		/*
 		 * We're out of tags on this hardware queue, kick any
 		 * pending IO submits before going to sleep waiting for
-		 * some to complete.
+		 * some to complete. Note that hctx can be NULL here for
+		 * reserved tag allocation.
 		 */
-		blk_mq_run_hw_queue(hctx, false);
+		if (hctx)
+			blk_mq_run_hw_queue(hctx, false);
 
 		/*
 		 * Retry tag allocation after running the hardware queue,
diff --git a/block/blk-mq.c b/block/blk-mq.c
index 4f4bea2..33c4285 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -1457,7 +1457,7 @@ static struct blk_mq_tags *blk_mq_init_rq_map(struct blk_mq_tag_set *set,
 
 		do {
 			page = alloc_pages_node(set->numa_node,
-				GFP_KERNEL | __GFP_NOWARN | __GFP_NORETRY,
+				GFP_KERNEL | __GFP_NOWARN | __GFP_NORETRY | __GFP_ZERO,
 				this_order);
 			if (page)
 				break;
@@ -1479,8 +1479,6 @@ static struct blk_mq_tags *blk_mq_init_rq_map(struct blk_mq_tag_set *set,
 		left -= to_do * rq_size;
 		for (j = 0; j < to_do; j++) {
 			tags->rqs[i] = p;
-			tags->rqs[i]->atomic_flags = 0;
-			tags->rqs[i]->cmd_flags = 0;
 			if (set->ops->init_request) {
 				if (set->ops->init_request(set->driver_data,
 						tags->rqs[i], hctx_idx, i,
@@ -1938,7 +1936,7 @@ struct request_queue *blk_mq_init_queue(struct blk_mq_tag_set *set)
 	 */
 	if (percpu_ref_init(&q->mq_usage_counter, blk_mq_usage_counter_release,
 			    PERCPU_REF_INIT_ATOMIC, GFP_KERNEL))
-		goto err_map;
+		goto err_mq_usage;
 
 	setup_timer(&q->timeout, blk_mq_rq_timer, (unsigned long) q);
 	blk_queue_rq_timeout(q, 30000);
@@ -1981,7 +1979,7 @@ struct request_queue *blk_mq_init_queue(struct blk_mq_tag_set *set)
 	blk_mq_init_cpu_queues(q, set->nr_hw_queues);
 
 	if (blk_mq_init_hw_queues(q, set))
-		goto err_hw;
+		goto err_mq_usage;
 
 	mutex_lock(&all_q_mutex);
 	list_add_tail(&q->all_q_node, &all_q_list);
@@ -1993,7 +1991,7 @@ struct request_queue *blk_mq_init_queue(struct blk_mq_tag_set *set)
 
 	return q;
 
-err_hw:
+err_mq_usage:
 	blk_cleanup_queue(q);
 err_hctxs:
 	kfree(map);
diff --git a/block/blk-settings.c b/block/blk-settings.c
index 6ed2cbe..12600bf 100644
--- a/block/blk-settings.c
+++ b/block/blk-settings.c
@@ -585,7 +585,7 @@ int blk_stack_limits(struct queue_limits *t, struct queue_limits *b,
 				     b->physical_block_size);
 
 	t->io_min = max(t->io_min, b->io_min);
-	t->io_opt = lcm(t->io_opt, b->io_opt);
+	t->io_opt = lcm_not_zero(t->io_opt, b->io_opt);
 
 	t->cluster &= b->cluster;
 	t->discard_zeroes_data &= b->discard_zeroes_data;
@@ -616,7 +616,7 @@ int blk_stack_limits(struct queue_limits *t, struct queue_limits *b,
 		    b->raid_partial_stripes_expensive);
 
 	/* Find lowest common alignment_offset */
-	t->alignment_offset = lcm(t->alignment_offset, alignment)
+	t->alignment_offset = lcm_not_zero(t->alignment_offset, alignment)
 		% max(t->physical_block_size, t->io_min);
 
 	/* Verify that new alignment_offset is on a logical block boundary */
@@ -643,7 +643,7 @@ int blk_stack_limits(struct queue_limits *t, struct queue_limits *b,
 						      b->max_discard_sectors);
 		t->discard_granularity = max(t->discard_granularity,
 					     b->discard_granularity);
-		t->discard_alignment = lcm(t->discard_alignment, alignment) %
+		t->discard_alignment = lcm_not_zero(t->discard_alignment, alignment) %
 			t->discard_granularity;
 	}
 
diff --git a/drivers/acpi/ac.c b/drivers/acpi/ac.c
index 36b0e61..bbcc2b5 100644
--- a/drivers/acpi/ac.c
+++ b/drivers/acpi/ac.c
@@ -95,13 +95,14 @@ static struct acpi_driver acpi_ac_driver = {
 };
 
 struct acpi_ac {
-	struct power_supply charger;
+	struct power_supply *charger;
+	struct power_supply_desc charger_desc;
 	struct acpi_device * device;
 	unsigned long long state;
 	struct notifier_block battery_nb;
 };
 
-#define to_acpi_ac(x) container_of(x, struct acpi_ac, charger)
+#define to_acpi_ac(x) power_supply_get_drvdata(x)
 
 #ifdef CONFIG_ACPI_PROCFS_POWER
 static const struct file_operations acpi_ac_fops = {
@@ -275,7 +276,7 @@ static void acpi_ac_notify(struct acpi_device *device, u32 event)
 						  dev_name(&device->dev), event,
 						  (u32) ac->state);
 		acpi_notifier_call_chain(device, event, (u32) ac->state);
-		kobject_uevent(&ac->charger.dev->kobj, KOBJ_CHANGE);
+		kobject_uevent(&ac->charger->dev.kobj, KOBJ_CHANGE);
 	}
 
 	return;
@@ -321,6 +322,7 @@ static struct dmi_system_id ac_dmi_table[] = {
 
 static int acpi_ac_add(struct acpi_device *device)
 {
+	struct power_supply_config psy_cfg = {};
 	int result = 0;
 	struct acpi_ac *ac = NULL;
 
@@ -341,19 +343,24 @@ static int acpi_ac_add(struct acpi_device *device)
 	if (result)
 		goto end;
 
-	ac->charger.name = acpi_device_bid(device);
+	psy_cfg.drv_data = ac;
+
+	ac->charger_desc.name = acpi_device_bid(device);
 #ifdef CONFIG_ACPI_PROCFS_POWER
 	result = acpi_ac_add_fs(ac);
 	if (result)
 		goto end;
 #endif
-	ac->charger.type = POWER_SUPPLY_TYPE_MAINS;
-	ac->charger.properties = ac_props;
-	ac->charger.num_properties = ARRAY_SIZE(ac_props);
-	ac->charger.get_property = get_ac_property;
-	result = power_supply_register(&ac->device->dev, &ac->charger);
-	if (result)
+	ac->charger_desc.type = POWER_SUPPLY_TYPE_MAINS;
+	ac->charger_desc.properties = ac_props;
+	ac->charger_desc.num_properties = ARRAY_SIZE(ac_props);
+	ac->charger_desc.get_property = get_ac_property;
+	ac->charger = power_supply_register(&ac->device->dev,
+					    &ac->charger_desc, &psy_cfg);
+	if (IS_ERR(ac->charger)) {
+		result = PTR_ERR(ac->charger);
 		goto end;
+	}
 
 	printk(KERN_INFO PREFIX "%s [%s] (%s)\n",
 	       acpi_device_name(device), acpi_device_bid(device),
@@ -390,7 +397,7 @@ static int acpi_ac_resume(struct device *dev)
 	if (acpi_ac_get_state(ac))
 		return 0;
 	if (old_state != ac->state)
-		kobject_uevent(&ac->charger.dev->kobj, KOBJ_CHANGE);
+		kobject_uevent(&ac->charger->dev.kobj, KOBJ_CHANGE);
 	return 0;
 }
 #else
@@ -407,8 +414,7 @@ static int acpi_ac_remove(struct acpi_device *device)
 
 	ac = acpi_driver_data(device);
 
-	if (ac->charger.dev)
-		power_supply_unregister(&ac->charger);
+	power_supply_unregister(ac->charger);
 	unregister_acpi_notifier(&ac->battery_nb);
 
 #ifdef CONFIG_ACPI_PROCFS_POWER
diff --git a/drivers/acpi/acpi_lpss.c b/drivers/acpi/acpi_lpss.c
index 657964e..37fb190 100644
--- a/drivers/acpi/acpi_lpss.c
+++ b/drivers/acpi/acpi_lpss.c
@@ -65,6 +65,7 @@ struct lpss_private_data;
 
 struct lpss_device_desc {
 	unsigned int flags;
+	const char *clk_con_id;
 	unsigned int prv_offset;
 	size_t prv_size_override;
 	void (*setup)(struct lpss_private_data *pdata);
@@ -140,6 +141,7 @@ static struct lpss_device_desc lpt_i2c_dev_desc = {
 
 static struct lpss_device_desc lpt_uart_dev_desc = {
 	.flags = LPSS_CLK | LPSS_CLK_GATE | LPSS_CLK_DIVIDER | LPSS_LTR,
+	.clk_con_id = "baudclk",
 	.prv_offset = 0x800,
 	.setup = lpss_uart_setup,
 };
@@ -156,6 +158,7 @@ static struct lpss_device_desc byt_pwm_dev_desc = {
 
 static struct lpss_device_desc byt_uart_dev_desc = {
 	.flags = LPSS_CLK | LPSS_CLK_GATE | LPSS_CLK_DIVIDER | LPSS_SAVE_CTX,
+	.clk_con_id = "baudclk",
 	.prv_offset = 0x800,
 	.setup = lpss_uart_setup,
 };
@@ -313,7 +316,7 @@ out:
 		return PTR_ERR(clk);
 
 	pdata->clk = clk;
-	clk_register_clkdev(clk, NULL, devname);
+	clk_register_clkdev(clk, dev_desc->clk_con_id, devname);
 	return 0;
 }
 
diff --git a/drivers/acpi/acpi_pad.c b/drivers/acpi/acpi_pad.c
index c7b105c..6bc9cbc 100644
--- a/drivers/acpi/acpi_pad.c
+++ b/drivers/acpi/acpi_pad.c
@@ -26,7 +26,7 @@
 #include <linux/kthread.h>
 #include <linux/freezer.h>
 #include <linux/cpu.h>
-#include <linux/clockchips.h>
+#include <linux/tick.h>
 #include <linux/slab.h>
 #include <linux/acpi.h>
 #include <asm/mwait.h>
@@ -41,8 +41,6 @@ static unsigned long power_saving_mwait_eax;
 
 static unsigned char tsc_detected_unstable;
 static unsigned char tsc_marked_unstable;
-static unsigned char lapic_detected_unstable;
-static unsigned char lapic_marked_unstable;
 
 static void power_saving_mwait_init(void)
 {
@@ -82,13 +80,10 @@ static void power_saving_mwait_init(void)
 		 */
 		if (!boot_cpu_has(X86_FEATURE_NONSTOP_TSC))
 			tsc_detected_unstable = 1;
-		if (!boot_cpu_has(X86_FEATURE_ARAT))
-			lapic_detected_unstable = 1;
 		break;
 	default:
-		/* TSC & LAPIC could halt in idle */
+		/* TSC could halt in idle */
 		tsc_detected_unstable = 1;
-		lapic_detected_unstable = 1;
 	}
 #endif
 }
@@ -155,7 +150,6 @@ static int power_saving_thread(void *data)
 	sched_setscheduler(current, SCHED_RR, &param);
 
 	while (!kthread_should_stop()) {
-		int cpu;
 		unsigned long expire_time;
 
 		try_to_freeze();
@@ -177,28 +171,15 @@ static int power_saving_thread(void *data)
 				mark_tsc_unstable("TSC halts in idle");
 				tsc_marked_unstable = 1;
 			}
-			if (lapic_detected_unstable && !lapic_marked_unstable) {
-				int i;
-				/* LAPIC could halt in idle, so notify users */
-				for_each_online_cpu(i)
-					clockevents_notify(
-						CLOCK_EVT_NOTIFY_BROADCAST_ON,
-						&i);
-				lapic_marked_unstable = 1;
-			}
 			local_irq_disable();
-			cpu = smp_processor_id();
-			if (lapic_marked_unstable)
-				clockevents_notify(
-					CLOCK_EVT_NOTIFY_BROADCAST_ENTER, &cpu);
+			tick_broadcast_enable();
+			tick_broadcast_enter();
 			stop_critical_timings();
 
 			mwait_idle_with_hints(power_saving_mwait_eax, 1);
 
 			start_critical_timings();
-			if (lapic_marked_unstable)
-				clockevents_notify(
-					CLOCK_EVT_NOTIFY_BROADCAST_EXIT, &cpu);
+			tick_broadcast_exit();
 			local_irq_enable();
 
 			if (time_before(expire_time, jiffies)) {
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index d98ba43..672263a 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -117,7 +117,8 @@ enum {
 struct acpi_battery {
 	struct mutex lock;
 	struct mutex sysfs_lock;
-	struct power_supply bat;
+	struct power_supply *bat;
+	struct power_supply_desc bat_desc;
 	struct acpi_device *device;
 	struct notifier_block pm_nb;
 	unsigned long update_time;
@@ -149,7 +150,7 @@ struct acpi_battery {
 	unsigned long flags;
 };
 
-#define to_acpi_battery(x) container_of(x, struct acpi_battery, bat)
+#define to_acpi_battery(x) power_supply_get_drvdata(x)
 
 static inline int acpi_battery_present(struct acpi_battery *battery)
 {
@@ -608,40 +609,45 @@ static struct device_attribute alarm_attr = {
 
 static int sysfs_add_battery(struct acpi_battery *battery)
 {
-	int result;
+	struct power_supply_config psy_cfg = { .drv_data = battery, };
 
 	if (battery->power_unit == ACPI_BATTERY_POWER_UNIT_MA) {
-		battery->bat.properties = charge_battery_props;
-		battery->bat.num_properties =
+		battery->bat_desc.properties = charge_battery_props;
+		battery->bat_desc.num_properties =
 			ARRAY_SIZE(charge_battery_props);
 	} else {
-		battery->bat.properties = energy_battery_props;
-		battery->bat.num_properties =
+		battery->bat_desc.properties = energy_battery_props;
+		battery->bat_desc.num_properties =
 			ARRAY_SIZE(energy_battery_props);
 	}
 
-	battery->bat.name = acpi_device_bid(battery->device);
-	battery->bat.type = POWER_SUPPLY_TYPE_BATTERY;
-	battery->bat.get_property = acpi_battery_get_property;
+	battery->bat_desc.name = acpi_device_bid(battery->device);
+	battery->bat_desc.type = POWER_SUPPLY_TYPE_BATTERY;
+	battery->bat_desc.get_property = acpi_battery_get_property;
 
-	result = power_supply_register_no_ws(&battery->device->dev, &battery->bat);
+	battery->bat = power_supply_register_no_ws(&battery->device->dev,
+				&battery->bat_desc, &psy_cfg);
 
-	if (result)
+	if (IS_ERR(battery->bat)) {
+		int result = PTR_ERR(battery->bat);
+
+		battery->bat = NULL;
 		return result;
-	return device_create_file(battery->bat.dev, &alarm_attr);
+	}
+	return device_create_file(&battery->bat->dev, &alarm_attr);
 }
 
 static void sysfs_remove_battery(struct acpi_battery *battery)
 {
 	mutex_lock(&battery->sysfs_lock);
-	if (!battery->bat.dev) {
+	if (!battery->bat) {
 		mutex_unlock(&battery->sysfs_lock);
 		return;
 	}
 
-	device_remove_file(battery->bat.dev, &alarm_attr);
-	power_supply_unregister(&battery->bat);
-	battery->bat.dev = NULL;
+	device_remove_file(&battery->bat->dev, &alarm_attr);
+	power_supply_unregister(battery->bat);
+	battery->bat = NULL;
 	mutex_unlock(&battery->sysfs_lock);
 }
 
@@ -738,7 +744,7 @@ static int acpi_battery_update(struct acpi_battery *battery, bool resume)
 			return result;
 		acpi_battery_init_alarm(battery);
 	}
-	if (!battery->bat.dev) {
+	if (!battery->bat) {
 		result = sysfs_add_battery(battery);
 		if (result)
 			return result;
@@ -764,7 +770,7 @@ static void acpi_battery_refresh(struct acpi_battery *battery)
 {
 	int power_unit;
 
-	if (!battery->bat.dev)
+	if (!battery->bat)
 		return;
 
 	power_unit = battery->power_unit;
@@ -1062,11 +1068,11 @@ static void acpi_battery_remove_fs(struct acpi_device *device)
 static void acpi_battery_notify(struct acpi_device *device, u32 event)
 {
 	struct acpi_battery *battery = acpi_driver_data(device);
-	struct device *old;
+	struct power_supply *old;
 
 	if (!battery)
 		return;
-	old = battery->bat.dev;
+	old = battery->bat;
 	/*
 	* On Acer Aspire V5-573G notifications are sometimes triggered too
 	* early. For example, when AC is unplugged and notification is
@@ -1083,8 +1089,8 @@ static void acpi_battery_notify(struct acpi_device *device, u32 event)
 					acpi_battery_present(battery));
 	acpi_notifier_call_chain(device, event, acpi_battery_present(battery));
 	/* acpi_battery_update could remove power_supply object */
-	if (old && battery->bat.dev)
-		power_supply_changed(&battery->bat);
+	if (old && battery->bat)
+		power_supply_changed(battery->bat);
 }
 
 static int battery_notify(struct notifier_block *nb,
@@ -1100,7 +1106,7 @@ static int battery_notify(struct notifier_block *nb,
 		if (!acpi_battery_present(battery))
 			return 0;
 
-		if (!battery->bat.dev) {
+		if (!battery->bat) {
 			result = acpi_battery_get_info(battery);
 			if (result)
 				return result;
diff --git a/drivers/acpi/pci_irq.c b/drivers/acpi/pci_irq.c
index e7f718d..b1def41 100644
--- a/drivers/acpi/pci_irq.c
+++ b/drivers/acpi/pci_irq.c
@@ -485,6 +485,14 @@ void acpi_pci_irq_disable(struct pci_dev *dev)
 	if (!pin || !dev->irq_managed || dev->irq <= 0)
 		return;
 
+	/* Keep IOAPIC pin configuration when suspending */
+	if (dev->dev.power.is_prepared)
+		return;
+#ifdef	CONFIG_PM
+	if (dev->dev.power.runtime_status == RPM_SUSPENDING)
+		return;
+#endif
+
 	entry = acpi_pci_irq_lookup(dev, pin);
 	if (!entry)
 		return;
@@ -505,6 +513,5 @@ void acpi_pci_irq_disable(struct pci_dev *dev)
 	if (gsi >= 0) {
 		acpi_unregister_gsi(gsi);
 		dev->irq_managed = 0;
-		dev->irq = 0;
 	}
 }
diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index 68a5f71..1b5569c 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -423,8 +423,7 @@ out:
 }
 EXPORT_SYMBOL(acpi_pci_osc_control_set);
 
-static void negotiate_os_control(struct acpi_pci_root *root, int *no_aspm,
-				 int *clear_aspm)
+static void negotiate_os_control(struct acpi_pci_root *root, int *no_aspm)
 {
 	u32 support, control, requested;
 	acpi_status status;
@@ -495,10 +494,12 @@ static void negotiate_os_control(struct acpi_pci_root *root, int *no_aspm,
 		decode_osc_control(root, "OS now controls", control);
 		if (acpi_gbl_FADT.boot_flags & ACPI_FADT_NO_ASPM) {
 			/*
-			 * We have ASPM control, but the FADT indicates
-			 * that it's unsupported. Clear it.
+			 * We have ASPM control, but the FADT indicates that
+			 * it's unsupported. Leave existing configuration
+			 * intact and prevent the OS from touching it.
 			 */
-			*clear_aspm = 1;
+			dev_info(&device->dev, "FADT indicates ASPM is unsupported, using BIOS configuration\n");
+			*no_aspm = 1;
 		}
 	} else {
 		decode_osc_control(root, "OS requested", requested);
@@ -525,7 +526,7 @@ static int acpi_pci_root_add(struct acpi_device *device,
 	int result;
 	struct acpi_pci_root *root;
 	acpi_handle handle = device->handle;
-	int no_aspm = 0, clear_aspm = 0;
+	int no_aspm = 0;
 	bool hotadd = system_state != SYSTEM_BOOTING;
 
 	root = kzalloc(sizeof(struct acpi_pci_root), GFP_KERNEL);
@@ -584,7 +585,7 @@ static int acpi_pci_root_add(struct acpi_device *device,
 
 	root->mcfg_addr = acpi_pci_root_get_mcfg_addr(handle);
 
-	negotiate_os_control(root, &no_aspm, &clear_aspm);
+	negotiate_os_control(root, &no_aspm);
 
 	/*
 	 * TBD: Need PCI interface for enumeration/configuration of roots.
@@ -607,10 +608,6 @@ static int acpi_pci_root_add(struct acpi_device *device,
 		goto remove_dmar;
 	}
 
-	if (clear_aspm) {
-		dev_info(&device->dev, "Disabling ASPM (FADT indicates it is unsupported)\n");
-		pcie_clear_aspm(root->bus);
-	}
 	if (no_aspm)
 		pcie_no_aspm();
 
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index c6bb9f1..39e0c8e 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -32,7 +32,7 @@
 #include <linux/acpi.h>
 #include <linux/dmi.h>
 #include <linux/sched.h>       /* need_resched() */
-#include <linux/clockchips.h>
+#include <linux/tick.h>
 #include <linux/cpuidle.h>
 #include <linux/syscore_ops.h>
 #include <acpi/processor.h>
@@ -157,12 +157,11 @@ static void lapic_timer_check_state(int state, struct acpi_processor *pr,
 static void __lapic_timer_propagate_broadcast(void *arg)
 {
 	struct acpi_processor *pr = (struct acpi_processor *) arg;
-	unsigned long reason;
 
-	reason = pr->power.timer_broadcast_on_state < INT_MAX ?
-		CLOCK_EVT_NOTIFY_BROADCAST_ON : CLOCK_EVT_NOTIFY_BROADCAST_OFF;
-
-	clockevents_notify(reason, &pr->id);
+	if (pr->power.timer_broadcast_on_state < INT_MAX)
+		tick_broadcast_enable();
+	else
+		tick_broadcast_disable();
 }
 
 static void lapic_timer_propagate_broadcast(struct acpi_processor *pr)
@@ -179,11 +178,10 @@ static void lapic_timer_state_broadcast(struct acpi_processor *pr,
 	int state = cx - pr->power.states;
 
 	if (state >= pr->power.timer_broadcast_on_state) {
-		unsigned long reason;
-
-		reason = broadcast ?  CLOCK_EVT_NOTIFY_BROADCAST_ENTER :
-			CLOCK_EVT_NOTIFY_BROADCAST_EXIT;
-		clockevents_notify(reason, &pr->id);
+		if (broadcast)
+			tick_broadcast_enter();
+		else
+			tick_broadcast_exit();
 	}
 }
 
@@ -922,7 +920,7 @@ static int acpi_processor_setup_cpuidle_states(struct acpi_processor *pr)
 		return -EINVAL;
 
 	drv->safe_state_index = -1;
-	for (i = 0; i < CPUIDLE_STATE_MAX; i++) {
+	for (i = CPUIDLE_DRIVER_STATE_START; i < CPUIDLE_STATE_MAX; i++) {
 		drv->states[i].name[0] = '\0';
 		drv->states[i].desc[0] = '\0';
 	}
diff --git a/drivers/acpi/resource.c b/drivers/acpi/resource.c
index c723668..5589a6e 100644
--- a/drivers/acpi/resource.c
+++ b/drivers/acpi/resource.c
@@ -42,8 +42,10 @@ static bool acpi_dev_resource_len_valid(u64 start, u64 end, u64 len, bool io)
 	 * CHECKME: len might be required to check versus a minimum
 	 * length as well. 1 for io is fine, but for memory it does
 	 * not make any sense at all.
+	 * Note: some BIOSes report incorrect length for ACPI address space
+	 * descriptor, so remove check of 'reslen == len' to avoid regression.
 	 */
-	if (len && reslen && reslen == len && start <= end)
+	if (len && reslen && start <= end)
 		return true;
 
 	pr_debug("ACPI: invalid or unassigned resource %s [%016llx - %016llx] length [%016llx]\n",
diff --git a/drivers/acpi/sbs.c b/drivers/acpi/sbs.c
index a7a3edd..cd82762 100644
--- a/drivers/acpi/sbs.c
+++ b/drivers/acpi/sbs.c
@@ -74,7 +74,8 @@ static const struct acpi_device_id sbs_device_ids[] = {
 MODULE_DEVICE_TABLE(acpi, sbs_device_ids);
 
 struct acpi_battery {
-	struct power_supply bat;
+	struct power_supply *bat;
+	struct power_supply_desc bat_desc;
 	struct acpi_sbs *sbs;
 	unsigned long update_time;
 	char name[8];
@@ -101,10 +102,10 @@ struct acpi_battery {
 	u8 have_sysfs_alarm:1;
 };
 
-#define to_acpi_battery(x) container_of(x, struct acpi_battery, bat)
+#define to_acpi_battery(x) power_supply_get_drvdata(x)
 
 struct acpi_sbs {
-	struct power_supply charger;
+	struct power_supply *charger;
 	struct acpi_device *device;
 	struct acpi_smb_hc *hc;
 	struct mutex lock;
@@ -115,7 +116,7 @@ struct acpi_sbs {
 	u8 charger_exists:1;
 };
 
-#define to_acpi_sbs(x) container_of(x, struct acpi_sbs, charger)
+#define to_acpi_sbs(x) power_supply_get_drvdata(x)
 
 static int acpi_sbs_remove(struct acpi_device *device);
 static int acpi_battery_get_state(struct acpi_battery *battery);
@@ -303,6 +304,13 @@ static enum power_supply_property sbs_energy_battery_props[] = {
 	POWER_SUPPLY_PROP_MANUFACTURER,
 };
 
+static const struct power_supply_desc acpi_sbs_charger_desc = {
+	.name		= "sbs-charger",
+	.type		= POWER_SUPPLY_TYPE_MAINS,
+	.properties	= sbs_ac_props,
+	.num_properties	= ARRAY_SIZE(sbs_ac_props),
+	.get_property	= sbs_get_ac_property,
+};
 
 /* --------------------------------------------------------------------------
                             Smart Battery System Management
@@ -519,6 +527,7 @@ static int acpi_battery_read(struct acpi_battery *battery)
 static int acpi_battery_add(struct acpi_sbs *sbs, int id)
 {
 	struct acpi_battery *battery = &sbs->battery[id];
+	struct power_supply_config psy_cfg = { .drv_data = battery, };
 	int result;
 
 	battery->id = id;
@@ -528,23 +537,27 @@ static int acpi_battery_add(struct acpi_sbs *sbs, int id)
 		return result;
 
 	sprintf(battery->name, ACPI_BATTERY_DIR_NAME, id);
-	battery->bat.name = battery->name;
-	battery->bat.type = POWER_SUPPLY_TYPE_BATTERY;
+	battery->bat_desc.name = battery->name;
+	battery->bat_desc.type = POWER_SUPPLY_TYPE_BATTERY;
 	if (!acpi_battery_mode(battery)) {
-		battery->bat.properties = sbs_charge_battery_props;
-		battery->bat.num_properties =
+		battery->bat_desc.properties = sbs_charge_battery_props;
+		battery->bat_desc.num_properties =
 		    ARRAY_SIZE(sbs_charge_battery_props);
 	} else {
-		battery->bat.properties = sbs_energy_battery_props;
-		battery->bat.num_properties =
+		battery->bat_desc.properties = sbs_energy_battery_props;
+		battery->bat_desc.num_properties =
 		    ARRAY_SIZE(sbs_energy_battery_props);
 	}
-	battery->bat.get_property = acpi_sbs_battery_get_property;
-	result = power_supply_register(&sbs->device->dev, &battery->bat);
-	if (result)
+	battery->bat_desc.get_property = acpi_sbs_battery_get_property;
+	battery->bat = power_supply_register(&sbs->device->dev,
+					&battery->bat_desc, &psy_cfg);
+	if (IS_ERR(battery->bat)) {
+		result = PTR_ERR(battery->bat);
+		battery->bat = NULL;
 		goto end;
+	}
 
-	result = device_create_file(battery->bat.dev, &alarm_attr);
+	result = device_create_file(&battery->bat->dev, &alarm_attr);
 	if (result)
 		goto end;
 	battery->have_sysfs_alarm = 1;
@@ -559,28 +572,29 @@ static void acpi_battery_remove(struct acpi_sbs *sbs, int id)
 {
 	struct acpi_battery *battery = &sbs->battery[id];
 
-	if (battery->bat.dev) {
+	if (battery->bat) {
 		if (battery->have_sysfs_alarm)
-			device_remove_file(battery->bat.dev, &alarm_attr);
-		power_supply_unregister(&battery->bat);
+			device_remove_file(&battery->bat->dev, &alarm_attr);
+		power_supply_unregister(battery->bat);
 	}
 }
 
 static int acpi_charger_add(struct acpi_sbs *sbs)
 {
 	int result;
+	struct power_supply_config psy_cfg = { .drv_data = sbs, };
 
 	result = acpi_ac_get_present(sbs);
 	if (result)
 		goto end;
 
 	sbs->charger_exists = 1;
-	sbs->charger.name = "sbs-charger";
-	sbs->charger.type = POWER_SUPPLY_TYPE_MAINS;
-	sbs->charger.properties = sbs_ac_props;
-	sbs->charger.num_properties = ARRAY_SIZE(sbs_ac_props);
-	sbs->charger.get_property = sbs_get_ac_property;
-	power_supply_register(&sbs->device->dev, &sbs->charger);
+	sbs->charger = power_supply_register(&sbs->device->dev,
+					&acpi_sbs_charger_desc, &psy_cfg);
+	if (IS_ERR(sbs->charger)) {
+		result = PTR_ERR(sbs->charger);
+		sbs->charger = NULL;
+	}
 	printk(KERN_INFO PREFIX "%s [%s]: AC Adapter [%s] (%s)\n",
 	       ACPI_SBS_DEVICE_NAME, acpi_device_bid(sbs->device),
 	       ACPI_AC_DIR_NAME, sbs->charger_present ? "on-line" : "off-line");
@@ -590,8 +604,8 @@ static int acpi_charger_add(struct acpi_sbs *sbs)
 
 static void acpi_charger_remove(struct acpi_sbs *sbs)
 {
-	if (sbs->charger.dev)
-		power_supply_unregister(&sbs->charger);
+	if (sbs->charger)
+		power_supply_unregister(sbs->charger);
 }
 
 static void acpi_sbs_callback(void *context)
@@ -605,7 +619,7 @@ static void acpi_sbs_callback(void *context)
 	if (sbs->charger_exists) {
 		acpi_ac_get_present(sbs);
 		if (sbs->charger_present != saved_charger_state)
-			kobject_uevent(&sbs->charger.dev->kobj, KOBJ_CHANGE);
+			kobject_uevent(&sbs->charger->dev.kobj, KOBJ_CHANGE);
 	}
 
 	if (sbs->manager_present) {
@@ -617,7 +631,7 @@ static void acpi_sbs_callback(void *context)
 			acpi_battery_read(bat);
 			if (saved_battery_state == bat->present)
 				continue;
-			kobject_uevent(&bat->bat.dev->kobj, KOBJ_CHANGE);
+			kobject_uevent(&bat->bat->dev.kobj, KOBJ_CHANGE);
 		}
 	}
 }
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index debd309..26eb70c 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -2110,7 +2110,8 @@ static int __init intel_opregion_present(void)
 
 int acpi_video_register(void)
 {
-	int result = 0;
+	int ret;
+
 	if (register_count) {
 		/*
 		 * if the function of acpi_video_register is already called,
@@ -2122,9 +2123,9 @@ int acpi_video_register(void)
 	mutex_init(&video_list_lock);
 	INIT_LIST_HEAD(&video_bus_head);
 
-	result = acpi_bus_register_driver(&acpi_video_bus);
-	if (result < 0)
-		return -ENODEV;
+	ret = acpi_bus_register_driver(&acpi_video_bus);
+	if (ret)
+		return ret;
 
 	/*
 	 * When the acpi_video_bus is loaded successfully, increase
@@ -2176,6 +2177,17 @@ EXPORT_SYMBOL(acpi_video_unregister_backlight);
 
 static int __init acpi_video_init(void)
 {
+	/*
+	 * Let the module load even if ACPI is disabled (e.g. due to
+	 * a broken BIOS) so that i915.ko can still be loaded on such
+	 * old systems without an AcpiOpRegion.
+	 *
+	 * acpi_video_register() will report -ENODEV later as well due
+	 * to acpi_disabled when i915.ko tries to register itself afterwards.
+	 */
+	if (acpi_disabled)
+		return 0;
+
 	dmi_check_system(video_dmi_table);
 
 	if (intel_opregion_present())
diff --git a/drivers/android/binder.c b/drivers/android/binder.c
index 33b09b6..6607f3c 100644
--- a/drivers/android/binder.c
+++ b/drivers/android/binder.c
@@ -551,7 +551,6 @@ static int binder_update_page_range(struct binder_proc *proc, int allocate,
 {
 	void *page_addr;
 	unsigned long user_page_addr;
-	struct vm_struct tmp_area;
 	struct page **page;
 	struct mm_struct *mm;
 
@@ -600,10 +599,11 @@ static int binder_update_page_range(struct binder_proc *proc, int allocate,
 				proc->pid, page_addr);
 			goto err_alloc_page_failed;
 		}
-		tmp_area.addr = page_addr;
-		tmp_area.size = PAGE_SIZE + PAGE_SIZE /* guard page? */;
-		ret = map_vm_area(&tmp_area, PAGE_KERNEL, page);
-		if (ret) {
+		ret = map_kernel_range_noflush((unsigned long)page_addr,
+					PAGE_SIZE, PAGE_KERNEL, page);
+		flush_cache_vmap((unsigned long)page_addr,
+				(unsigned long)page_addr + PAGE_SIZE);
+		if (ret != 1) {
 			pr_err("%d: binder_alloc_buf failed to map page at %p in kernel\n",
 			       proc->pid, page_addr);
 			goto err_map_kernel_failed;
diff --git a/drivers/ata/Makefile b/drivers/ata/Makefile
index ae41107..b67e995 100644
--- a/drivers/ata/Makefile
+++ b/drivers/ata/Makefile
@@ -111,7 +111,8 @@ obj-$(CONFIG_ATA_GENERIC)	+= ata_generic.o
 # Should be last libata driver
 obj-$(CONFIG_PATA_LEGACY)	+= pata_legacy.o
 
-libata-y	:= libata-core.o libata-scsi.o libata-eh.o libata-transport.o
+libata-y	:= libata-core.o libata-scsi.o libata-eh.o \
+	libata-transport.o libata-trace.o
 libata-$(CONFIG_ATA_SFF)	+= libata-sff.o
 libata-$(CONFIG_SATA_PMP)	+= libata-pmp.o
 libata-$(CONFIG_ATA_ACPI)	+= libata-acpi.o
diff --git a/drivers/ata/acard-ahci.c b/drivers/ata/acard-ahci.c
index c962886d..12489ce 100644
--- a/drivers/ata/acard-ahci.c
+++ b/drivers/ata/acard-ahci.c
@@ -181,10 +181,10 @@ static int acard_ahci_configure_dma_masks(struct pci_dev *pdev, int using_dac)
 	int rc;
 
 	if (using_dac &&
-	    !pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) {
-		rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
+	    !dma_set_mask(&pdev->dev, DMA_BIT_MASK(64))) {
+		rc = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64));
 		if (rc) {
-			rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
+			rc = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
 			if (rc) {
 				dev_err(&pdev->dev,
 					   "64-bit DMA enable failed\n");
@@ -192,12 +192,12 @@ static int acard_ahci_configure_dma_masks(struct pci_dev *pdev, int using_dac)
 			}
 		}
 	} else {
-		rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
+		rc = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
 		if (rc) {
 			dev_err(&pdev->dev, "32-bit DMA enable failed\n");
 			return rc;
 		}
-		rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
+		rc = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
 		if (rc) {
 			dev_err(&pdev->dev,
 				"32-bit consistent DMA enable failed\n");
diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index 33bb06e..c7a92a7 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -738,10 +738,10 @@ static int ahci_configure_dma_masks(struct pci_dev *pdev, int using_dac)
 		return 0;
 
 	if (using_dac &&
-	    !pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) {
-		rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
+	    !dma_set_mask(&pdev->dev, DMA_BIT_MASK(64))) {
+		rc = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64));
 		if (rc) {
-			rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
+			rc = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
 			if (rc) {
 				dev_err(&pdev->dev,
 					"64-bit DMA enable failed\n");
@@ -749,12 +749,12 @@ static int ahci_configure_dma_masks(struct pci_dev *pdev, int using_dac)
 			}
 		}
 	} else {
-		rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
+		rc = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
 		if (rc) {
 			dev_err(&pdev->dev, "32-bit DMA enable failed\n");
 			return rc;
 		}
-		rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
+		rc = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
 		if (rc) {
 			dev_err(&pdev->dev,
 				"32-bit consistent DMA enable failed\n");
diff --git a/drivers/ata/ahci_st.c b/drivers/ata/ahci_st.c
index bc971af..ea0ff00 100644
--- a/drivers/ata/ahci_st.c
+++ b/drivers/ata/ahci_st.c
@@ -68,8 +68,6 @@ static int st_ahci_deassert_resets(struct device *dev)
 		}
 	}
 
-	st_ahci_configure_oob(drv_data->hpriv->mmio);
-
 	if (drv_data->sw_rst) {
 		err = reset_control_deassert(drv_data->sw_rst);
 		if (err) {
@@ -172,6 +170,8 @@ static int st_ahci_probe(struct platform_device *pdev)
 	if (err)
 		return err;
 
+	st_ahci_configure_oob(drv_data->hpriv->mmio);
+
 	err = ahci_platform_init_host(pdev, hpriv, &st_ahci_port_info,
 				      &ahci_platform_sht);
 	if (err) {
@@ -222,6 +222,8 @@ static int st_ahci_resume(struct device *dev)
 		return err;
 	}
 
+	st_ahci_configure_oob(drv_data->hpriv->mmio);
+
 	return ahci_platform_resume_host(dev);
 }
 #endif
diff --git a/drivers/ata/ahci_xgene.c b/drivers/ata/ahci_xgene.c
index 2e8bb60..2b78510 100644
--- a/drivers/ata/ahci_xgene.c
+++ b/drivers/ata/ahci_xgene.c
@@ -22,6 +22,7 @@
  * NOTE: PM support is not currently available.
  *
  */
+#include <linux/acpi.h>
 #include <linux/module.h>
 #include <linux/platform_device.h>
 #include <linux/ahci_platform.h>
@@ -718,6 +719,14 @@ disable_resources:
 	return rc;
 }
 
+#ifdef CONFIG_ACPI
+static const struct acpi_device_id xgene_ahci_acpi_match[] = {
+	{ "APMC0D0D", },
+	{ }
+};
+MODULE_DEVICE_TABLE(acpi, xgene_ahci_acpi_match);
+#endif
+
 static const struct of_device_id xgene_ahci_of_match[] = {
 	{.compatible = "apm,xgene-ahci"},
 	{},
@@ -730,6 +739,7 @@ static struct platform_driver xgene_ahci_driver = {
 	.driver = {
 		.name = DRV_NAME,
 		.of_match_table = xgene_ahci_of_match,
+		.acpi_match_table = ACPI_PTR(xgene_ahci_acpi_match),
 	},
 };
 
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 4c35f08..f6cb1f1 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -70,6 +70,9 @@
 #include <linux/pm_runtime.h>
 #include <linux/platform_device.h>
 
+#define CREATE_TRACE_POINTS
+#include <trace/events/libata.h>
+
 #include "libata.h"
 #include "libata-transport.h"
 
@@ -691,11 +694,11 @@ static int ata_rwcmd_protocol(struct ata_taskfile *tf, struct ata_device *dev)
  *	RETURNS:
  *	Block address read from @tf.
  */
-u64 ata_tf_read_block(struct ata_taskfile *tf, struct ata_device *dev)
+u64 ata_tf_read_block(const struct ata_taskfile *tf, struct ata_device *dev)
 {
 	u64 block = 0;
 
-	if (tf->flags & ATA_TFLAG_LBA) {
+	if (!dev || tf->flags & ATA_TFLAG_LBA) {
 		if (tf->flags & ATA_TFLAG_LBA48) {
 			block |= (u64)tf->hob_lbah << 40;
 			block |= (u64)tf->hob_lbam << 32;
@@ -2144,6 +2147,24 @@ static int ata_dev_config_ncq(struct ata_device *dev,
 	return 0;
 }
 
+static void ata_dev_config_sense_reporting(struct ata_device *dev)
+{
+	unsigned int err_mask;
+
+	if (!ata_id_has_sense_reporting(dev->id))
+		return;
+
+	if (ata_id_sense_reporting_enabled(dev->id))
+		return;
+
+	err_mask = ata_dev_set_feature(dev, SETFEATURE_SENSE_DATA, 0x1);
+	if (err_mask) {
+		ata_dev_dbg(dev,
+			    "failed to enable Sense Data Reporting, Emask 0x%x\n",
+			    err_mask);
+	}
+}
+
 /**
  *	ata_dev_configure - Configure the specified ATA/ATAPI device
  *	@dev: Target device to configure
@@ -2366,7 +2387,7 @@ int ata_dev_configure(struct ata_device *dev)
 					dev->devslp_timing[i] = sata_setting[j];
 				}
 		}
-
+		ata_dev_config_sense_reporting(dev);
 		dev->cdb_len = 16;
 	}
 
@@ -4204,9 +4225,18 @@ static const struct ata_blacklist_entry ata_device_blacklist [] = {
 	{ "PIONEER DVD-RW  DVR-216D",	NULL,	ATA_HORKAGE_NOSETXFER },
 
 	/* devices that don't properly handle queued TRIM commands */
-	{ "Micron_M[56]*",		NULL,	ATA_HORKAGE_NO_NCQ_TRIM |
+	{ "Micron_M500*",		NULL,	ATA_HORKAGE_NO_NCQ_TRIM |
+						ATA_HORKAGE_ZERO_AFTER_TRIM, },
+	{ "Crucial_CT*M500*",		NULL,	ATA_HORKAGE_NO_NCQ_TRIM |
+						ATA_HORKAGE_ZERO_AFTER_TRIM, },
+	{ "Micron_M5[15]0*",		"MU01",	ATA_HORKAGE_NO_NCQ_TRIM |
+						ATA_HORKAGE_ZERO_AFTER_TRIM, },
+	{ "Crucial_CT*M550*",		"MU01",	ATA_HORKAGE_NO_NCQ_TRIM |
+						ATA_HORKAGE_ZERO_AFTER_TRIM, },
+	{ "Crucial_CT*MX100*",		"MU01",	ATA_HORKAGE_NO_NCQ_TRIM |
+						ATA_HORKAGE_ZERO_AFTER_TRIM, },
+	{ "Samsung SSD 850 PRO*",	NULL,	ATA_HORKAGE_NO_NCQ_TRIM |
 						ATA_HORKAGE_ZERO_AFTER_TRIM, },
-	{ "Crucial_CT*SSD*",		NULL,	ATA_HORKAGE_NO_NCQ_TRIM, },
 
 	/*
 	 * As defined, the DRAT (Deterministic Read After Trim) and RZAT
@@ -4226,6 +4256,8 @@ static const struct ata_blacklist_entry ata_device_blacklist [] = {
 	 */
 	{ "INTEL*SSDSC2MH*",		NULL,	0, },
 
+	{ "Micron*",			NULL,	ATA_HORKAGE_ZERO_AFTER_TRIM, },
+	{ "Crucial*",			NULL,	ATA_HORKAGE_ZERO_AFTER_TRIM, },
 	{ "INTEL*SSD*", 		NULL,	ATA_HORKAGE_ZERO_AFTER_TRIM, },
 	{ "SSD*INTEL*",			NULL,	ATA_HORKAGE_ZERO_AFTER_TRIM, },
 	{ "Samsung*SSD*",		NULL,	ATA_HORKAGE_ZERO_AFTER_TRIM, },
@@ -4737,7 +4769,7 @@ struct ata_queued_cmd *ata_qc_new_init(struct ata_device *dev, int tag)
 		return NULL;
 
 	/* libsas case */
-	if (!ap->scsi_host) {
+	if (ap->flags & ATA_FLAG_SAS_HOST) {
 		tag = ata_sas_allocate_tag(ap);
 		if (tag < 0)
 			return NULL;
@@ -4776,7 +4808,7 @@ void ata_qc_free(struct ata_queued_cmd *qc)
 	tag = qc->tag;
 	if (likely(ata_tag_valid(tag))) {
 		qc->tag = ATA_TAG_POISON;
-		if (!ap->scsi_host)
+		if (ap->flags & ATA_FLAG_SAS_HOST)
 			ata_sas_free_tag(tag, ap);
 	}
 }
@@ -4886,6 +4918,7 @@ void ata_qc_complete(struct ata_queued_cmd *qc)
 		 */
 		if (unlikely(ata_tag_internal(qc->tag))) {
 			fill_result_tf(qc);
+			trace_ata_qc_complete_internal(qc);
 			__ata_qc_complete(qc);
 			return;
 		}
@@ -4896,6 +4929,7 @@ void ata_qc_complete(struct ata_queued_cmd *qc)
 		 */
 		if (unlikely(qc->flags & ATA_QCFLAG_FAILED)) {
 			fill_result_tf(qc);
+			trace_ata_qc_complete_failed(qc);
 			ata_qc_schedule_eh(qc);
 			return;
 		}
@@ -4906,6 +4940,7 @@ void ata_qc_complete(struct ata_queued_cmd *qc)
 		if (qc->flags & ATA_QCFLAG_RESULT_TF)
 			fill_result_tf(qc);
 
+		trace_ata_qc_complete_done(qc);
 		/* Some commands need post-processing after successful
 		 * completion.
 		 */
@@ -5053,7 +5088,7 @@ void ata_qc_issue(struct ata_queued_cmd *qc)
 	}
 
 	ap->ops->qc_prep(qc);
-
+	trace_ata_qc_issue(qc);
 	qc->err_mask |= ap->ops->qc_issue(qc);
 	if (unlikely(qc->err_mask))
 		goto err;
diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c
index d2029a4..07f41be 100644
--- a/drivers/ata/libata-eh.c
+++ b/drivers/ata/libata-eh.c
@@ -46,6 +46,7 @@
 
 #include <linux/libata.h>
 
+#include <trace/events/libata.h>
 #include "libata.h"
 
 enum {
@@ -1510,13 +1511,18 @@ unsigned int ata_read_log_page(struct ata_device *dev, u8 log,
 	DPRINTK("read log page - log 0x%x, page 0x%x\n", log, page);
 
 	ata_tf_init(dev, &tf);
-	tf.command = ATA_CMD_READ_LOG_EXT;
+	if (dev->dma_mode && ata_id_has_read_log_dma_ext(dev->id)) {
+		tf.command = ATA_CMD_READ_LOG_DMA_EXT;
+		tf.protocol = ATA_PROT_DMA;
+	} else {
+		tf.command = ATA_CMD_READ_LOG_EXT;
+		tf.protocol = ATA_PROT_PIO;
+	}
 	tf.lbal = log;
 	tf.lbam = page;
 	tf.nsect = sectors;
 	tf.hob_nsect = sectors >> 8;
 	tf.flags |= ATA_TFLAG_ISADDR | ATA_TFLAG_LBA48 | ATA_TFLAG_DEVICE;
-	tf.protocol = ATA_PROT_PIO;
 
 	err_mask = ata_exec_internal(dev, &tf, NULL, DMA_FROM_DEVICE,
 				     buf, sectors * ATA_SECT_SIZE, 0);
@@ -1575,6 +1581,8 @@ static int ata_eh_read_log_10h(struct ata_device *dev,
 	tf->hob_lbah = buf[10];
 	tf->nsect = buf[12];
 	tf->hob_nsect = buf[13];
+	if (ata_id_has_ncq_autosense(dev->id))
+		tf->auxiliary = buf[14] << 16 | buf[15] << 8 | buf[16];
 
 	return 0;
 }
@@ -1611,6 +1619,70 @@ unsigned int atapi_eh_tur(struct ata_device *dev, u8 *r_sense_key)
 }
 
 /**
+ *	ata_eh_request_sense - perform REQUEST_SENSE_DATA_EXT
+ *	@dev: device to perform REQUEST_SENSE_SENSE_DATA_EXT to
+ *	@sense_buf: result sense data buffer (SCSI_SENSE_BUFFERSIZE bytes long)
+ *	@dfl_sense_key: default sense key to use
+ *
+ *	Perform REQUEST_SENSE_DATA_EXT after the device reported CHECK
+ *	SENSE.  This function is EH helper.
+ *
+ *	LOCKING:
+ *	Kernel thread context (may sleep).
+ *
+ *	RETURNS:
+ *	encoded sense data on success, 0 on failure or if sense data
+ *	is not available.
+ */
+static u32 ata_eh_request_sense(struct ata_queued_cmd *qc,
+				struct scsi_cmnd *cmd)
+{
+	struct ata_device *dev = qc->dev;
+	struct ata_taskfile tf;
+	unsigned int err_mask;
+
+	if (!cmd)
+		return 0;
+
+	DPRINTK("ATA request sense\n");
+	ata_dev_warn(dev, "request sense\n");
+	if (!ata_id_sense_reporting_enabled(dev->id)) {
+		ata_dev_warn(qc->dev, "sense data reporting disabled\n");
+		return 0;
+	}
+	ata_tf_init(dev, &tf);
+
+	tf.flags |= ATA_TFLAG_ISADDR | ATA_TFLAG_DEVICE;
+	tf.flags |= ATA_TFLAG_LBA | ATA_TFLAG_LBA48;
+	tf.command = ATA_CMD_REQ_SENSE_DATA;
+	tf.protocol = ATA_PROT_NODATA;
+
+	err_mask = ata_exec_internal(dev, &tf, NULL, DMA_NONE, NULL, 0, 0);
+	/*
+	 * ACS-4 states:
+	 * The device may set the SENSE DATA AVAILABLE bit to one in the
+	 * STATUS field and clear the ERROR bit to zero in the STATUS field
+	 * to indicate that the command returned completion without an error
+	 * and the sense data described in table 306 is available.
+	 *
+	 * IOW the 'ATA_SENSE' bit might not be set even though valid
+	 * sense data is available.
+	 * So check for both.
+	 */
+	if ((tf.command & ATA_SENSE) ||
+		tf.lbah != 0 || tf.lbam != 0 || tf.lbal != 0) {
+		ata_scsi_set_sense(cmd, tf.lbah, tf.lbam, tf.lbal);
+		qc->flags |= ATA_QCFLAG_SENSE_VALID;
+		ata_dev_warn(dev, "sense data %02x/%02x/%02x\n",
+			     tf.lbah, tf.lbam, tf.lbal);
+	} else {
+		ata_dev_warn(dev, "request sense failed stat %02x emask %x\n",
+			     tf.command, err_mask);
+	}
+	return err_mask;
+}
+
+/**
  *	atapi_eh_request_sense - perform ATAPI REQUEST_SENSE
  *	@dev: device to perform REQUEST_SENSE to
  *	@sense_buf: result sense data buffer (SCSI_SENSE_BUFFERSIZE bytes long)
@@ -1772,6 +1844,19 @@ void ata_eh_analyze_ncq_error(struct ata_link *link)
 	memcpy(&qc->result_tf, &tf, sizeof(tf));
 	qc->result_tf.flags = ATA_TFLAG_ISADDR | ATA_TFLAG_LBA | ATA_TFLAG_LBA48;
 	qc->err_mask |= AC_ERR_DEV | AC_ERR_NCQ;
+	if (qc->result_tf.auxiliary) {
+		char sense_key, asc, ascq;
+
+		sense_key = (qc->result_tf.auxiliary >> 16) & 0xff;
+		asc = (qc->result_tf.auxiliary >> 8) & 0xff;
+		ascq = qc->result_tf.auxiliary & 0xff;
+		ata_dev_dbg(dev, "NCQ Autosense %02x/%02x/%02x\n",
+			    sense_key, asc, ascq);
+		ata_scsi_set_sense(qc->scsicmd, sense_key, asc, ascq);
+		ata_scsi_set_sense_information(qc->scsicmd, &qc->result_tf);
+		qc->flags |= ATA_QCFLAG_SENSE_VALID;
+	}
+
 	ehc->i.err_mask &= ~AC_ERR_DEV;
 }
 
@@ -1801,6 +1886,27 @@ static unsigned int ata_eh_analyze_tf(struct ata_queued_cmd *qc,
 		return ATA_EH_RESET;
 	}
 
+	/*
+	 * Sense data reporting does not work if the
+	 * device fault bit is set.
+	 */
+	if ((stat & ATA_SENSE) && !(stat & ATA_DF) &&
+	    !(qc->flags & ATA_QCFLAG_SENSE_VALID)) {
+		if (!(qc->ap->pflags & ATA_PFLAG_FROZEN)) {
+			tmp = ata_eh_request_sense(qc, qc->scsicmd);
+			if (tmp)
+				qc->err_mask |= tmp;
+			else
+				ata_scsi_set_sense_information(qc->scsicmd, tf);
+		} else {
+			ata_dev_warn(qc->dev, "sense data available but port frozen\n");
+		}
+	}
+
+	/* Set by NCQ autosense or request sense above */
+	if (qc->flags & ATA_QCFLAG_SENSE_VALID)
+		return 0;
+
 	if (stat & (ATA_ERR | ATA_DF))
 		qc->err_mask |= AC_ERR_DEV;
 	else
@@ -2186,6 +2292,7 @@ static void ata_eh_link_autopsy(struct ata_link *link)
 		all_err_mask |= qc->err_mask;
 		if (qc->flags & ATA_QCFLAG_IO)
 			eflags |= ATA_EFLAG_IS_IO;
+		trace_ata_eh_link_autopsy_qc(qc);
 	}
 
 	/* enforce default EH actions */
@@ -2220,7 +2327,7 @@ static void ata_eh_link_autopsy(struct ata_link *link)
 			eflags |= ATA_EFLAG_DUBIOUS_XFER;
 		ehc->i.action |= ata_eh_speed_down(dev, eflags, all_err_mask);
 	}
-
+	trace_ata_eh_link_autopsy(dev, ehc->i.action, all_err_mask);
 	DPRINTK("EXIT\n");
 }
 
@@ -2289,27 +2396,27 @@ const char *ata_get_cmd_descript(u8 command)
 		const char *text;
 	} cmd_descr[] = {
 		{ ATA_CMD_DEV_RESET,		"DEVICE RESET" },
-		{ ATA_CMD_CHK_POWER, 		"CHECK POWER MODE" },
-		{ ATA_CMD_STANDBY, 		"STANDBY" },
-		{ ATA_CMD_IDLE, 		"IDLE" },
-		{ ATA_CMD_EDD, 			"EXECUTE DEVICE DIAGNOSTIC" },
-		{ ATA_CMD_DOWNLOAD_MICRO,   	"DOWNLOAD MICROCODE" },
+		{ ATA_CMD_CHK_POWER,		"CHECK POWER MODE" },
+		{ ATA_CMD_STANDBY,		"STANDBY" },
+		{ ATA_CMD_IDLE,			"IDLE" },
+		{ ATA_CMD_EDD,			"EXECUTE DEVICE DIAGNOSTIC" },
+		{ ATA_CMD_DOWNLOAD_MICRO,	"DOWNLOAD MICROCODE" },
 		{ ATA_CMD_DOWNLOAD_MICRO_DMA,	"DOWNLOAD MICROCODE DMA" },
 		{ ATA_CMD_NOP,			"NOP" },
-		{ ATA_CMD_FLUSH, 		"FLUSH CACHE" },
-		{ ATA_CMD_FLUSH_EXT, 		"FLUSH CACHE EXT" },
-		{ ATA_CMD_ID_ATA,  		"IDENTIFY DEVICE" },
-		{ ATA_CMD_ID_ATAPI, 		"IDENTIFY PACKET DEVICE" },
-		{ ATA_CMD_SERVICE, 		"SERVICE" },
-		{ ATA_CMD_READ, 		"READ DMA" },
-		{ ATA_CMD_READ_EXT, 		"READ DMA EXT" },
-		{ ATA_CMD_READ_QUEUED, 		"READ DMA QUEUED" },
-		{ ATA_CMD_READ_STREAM_EXT, 	"READ STREAM EXT" },
+		{ ATA_CMD_FLUSH,		"FLUSH CACHE" },
+		{ ATA_CMD_FLUSH_EXT,		"FLUSH CACHE EXT" },
+		{ ATA_CMD_ID_ATA,		"IDENTIFY DEVICE" },
+		{ ATA_CMD_ID_ATAPI,		"IDENTIFY PACKET DEVICE" },
+		{ ATA_CMD_SERVICE,		"SERVICE" },
+		{ ATA_CMD_READ,			"READ DMA" },
+		{ ATA_CMD_READ_EXT,		"READ DMA EXT" },
+		{ ATA_CMD_READ_QUEUED,		"READ DMA QUEUED" },
+		{ ATA_CMD_READ_STREAM_EXT,	"READ STREAM EXT" },
 		{ ATA_CMD_READ_STREAM_DMA_EXT,  "READ STREAM DMA EXT" },
-		{ ATA_CMD_WRITE, 		"WRITE DMA" },
-		{ ATA_CMD_WRITE_EXT, 		"WRITE DMA EXT" },
-		{ ATA_CMD_WRITE_QUEUED, 	"WRITE DMA QUEUED EXT" },
-		{ ATA_CMD_WRITE_STREAM_EXT, 	"WRITE STREAM EXT" },
+		{ ATA_CMD_WRITE,		"WRITE DMA" },
+		{ ATA_CMD_WRITE_EXT,		"WRITE DMA EXT" },
+		{ ATA_CMD_WRITE_QUEUED,		"WRITE DMA QUEUED EXT" },
+		{ ATA_CMD_WRITE_STREAM_EXT,	"WRITE STREAM EXT" },
 		{ ATA_CMD_WRITE_STREAM_DMA_EXT, "WRITE STREAM DMA EXT" },
 		{ ATA_CMD_WRITE_FUA_EXT,	"WRITE DMA FUA EXT" },
 		{ ATA_CMD_WRITE_QUEUED_FUA_EXT, "WRITE DMA QUEUED FUA EXT" },
@@ -2325,7 +2432,7 @@ const char *ata_get_cmd_descript(u8 command)
 		{ ATA_CMD_READ_MULTI_EXT,	"READ MULTIPLE EXT" },
 		{ ATA_CMD_WRITE_MULTI,		"WRITE MULTIPLE" },
 		{ ATA_CMD_WRITE_MULTI_EXT,	"WRITE MULTIPLE EXT" },
-		{ ATA_CMD_WRITE_MULTI_FUA_EXT, 	"WRITE MULTIPLE FUA EXT" },
+		{ ATA_CMD_WRITE_MULTI_FUA_EXT,	"WRITE MULTIPLE FUA EXT" },
 		{ ATA_CMD_SET_FEATURES,		"SET FEATURES" },
 		{ ATA_CMD_SET_MULTI,		"SET MULTIPLE MODE" },
 		{ ATA_CMD_VERIFY,		"READ VERIFY SECTOR(S)" },
@@ -2342,12 +2449,12 @@ const char *ata_get_cmd_descript(u8 command)
 		{ ATA_CMD_READ_LOG_EXT,		"READ LOG EXT" },
 		{ ATA_CMD_WRITE_LOG_EXT,	"WRITE LOG EXT" },
 		{ ATA_CMD_READ_LOG_DMA_EXT,	"READ LOG DMA EXT" },
-		{ ATA_CMD_WRITE_LOG_DMA_EXT, 	"WRITE LOG DMA EXT" },
+		{ ATA_CMD_WRITE_LOG_DMA_EXT,	"WRITE LOG DMA EXT" },
 		{ ATA_CMD_TRUSTED_NONDATA,	"TRUSTED NON-DATA" },
 		{ ATA_CMD_TRUSTED_RCV,		"TRUSTED RECEIVE" },
-		{ ATA_CMD_TRUSTED_RCV_DMA, 	"TRUSTED RECEIVE DMA" },
+		{ ATA_CMD_TRUSTED_RCV_DMA,	"TRUSTED RECEIVE DMA" },
 		{ ATA_CMD_TRUSTED_SND,		"TRUSTED SEND" },
-		{ ATA_CMD_TRUSTED_SND_DMA, 	"TRUSTED SEND DMA" },
+		{ ATA_CMD_TRUSTED_SND_DMA,	"TRUSTED SEND DMA" },
 		{ ATA_CMD_PMP_READ,		"READ BUFFER" },
 		{ ATA_CMD_PMP_READ_DMA,		"READ BUFFER DMA" },
 		{ ATA_CMD_PMP_WRITE,		"WRITE BUFFER" },
@@ -2364,12 +2471,12 @@ const char *ata_get_cmd_descript(u8 command)
 		{ ATA_CMD_MEDIA_LOCK,		"DOOR LOCK" },
 		{ ATA_CMD_MEDIA_UNLOCK,		"DOOR UNLOCK" },
 		{ ATA_CMD_DSM,			"DATA SET MANAGEMENT" },
-		{ ATA_CMD_CHK_MED_CRD_TYP, 	"CHECK MEDIA CARD TYPE" },
-		{ ATA_CMD_CFA_REQ_EXT_ERR, 	"CFA REQUEST EXTENDED ERROR" },
+		{ ATA_CMD_CHK_MED_CRD_TYP,	"CHECK MEDIA CARD TYPE" },
+		{ ATA_CMD_CFA_REQ_EXT_ERR,	"CFA REQUEST EXTENDED ERROR" },
 		{ ATA_CMD_CFA_WRITE_NE,		"CFA WRITE SECTORS WITHOUT ERASE" },
 		{ ATA_CMD_CFA_TRANS_SECT,	"CFA TRANSLATE SECTOR" },
 		{ ATA_CMD_CFA_ERASE,		"CFA ERASE SECTORS" },
-		{ ATA_CMD_CFA_WRITE_MULT_NE, 	"CFA WRITE MULTIPLE WITHOUT ERASE" },
+		{ ATA_CMD_CFA_WRITE_MULT_NE,	"CFA WRITE MULTIPLE WITHOUT ERASE" },
 		{ ATA_CMD_REQ_SENSE_DATA,	"REQUEST SENSE DATA EXT" },
 		{ ATA_CMD_SANITIZE_DEVICE,	"SANITIZE DEVICE" },
 		{ ATA_CMD_READ_LONG,		"READ LONG (with retries)" },
@@ -2543,14 +2650,15 @@ static void ata_eh_link_report(struct ata_link *link)
 
 #ifdef CONFIG_ATA_VERBOSE_ERROR
 		if (res->command & (ATA_BUSY | ATA_DRDY | ATA_DF | ATA_DRQ |
-				    ATA_ERR)) {
+				    ATA_SENSE | ATA_ERR)) {
 			if (res->command & ATA_BUSY)
 				ata_dev_err(qc->dev, "status: { Busy }\n");
 			else
-				ata_dev_err(qc->dev, "status: { %s%s%s%s}\n",
+				ata_dev_err(qc->dev, "status: { %s%s%s%s%s}\n",
 				  res->command & ATA_DRDY ? "DRDY " : "",
 				  res->command & ATA_DF ? "DF " : "",
 				  res->command & ATA_DRQ ? "DRQ " : "",
+				  res->command & ATA_SENSE ? "SENSE " : "",
 				  res->command & ATA_ERR ? "ERR " : "");
 		}
 
diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index b061ba2..3131adc 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -270,13 +270,28 @@ DEVICE_ATTR(unload_heads, S_IRUGO | S_IWUSR,
 	    ata_scsi_park_show, ata_scsi_park_store);
 EXPORT_SYMBOL_GPL(dev_attr_unload_heads);
 
-static void ata_scsi_set_sense(struct scsi_cmnd *cmd, u8 sk, u8 asc, u8 ascq)
+void ata_scsi_set_sense(struct scsi_cmnd *cmd, u8 sk, u8 asc, u8 ascq)
 {
+	if (!cmd)
+		return;
+
 	cmd->result = (DRIVER_SENSE << 24) | SAM_STAT_CHECK_CONDITION;
 
 	scsi_build_sense_buffer(0, cmd->sense_buffer, sk, asc, ascq);
 }
 
+void ata_scsi_set_sense_information(struct scsi_cmnd *cmd,
+				    const struct ata_taskfile *tf)
+{
+	u64 information;
+
+	if (!cmd)
+		return;
+
+	information = ata_tf_read_block(tf, NULL);
+	scsi_set_sense_information(cmd->sense_buffer, information);
+}
+
 static ssize_t
 ata_scsi_em_message_store(struct device *dev, struct device_attribute *attr,
 			  const char *buf, size_t count)
@@ -799,26 +814,27 @@ static void ata_dump_status(unsigned id, struct ata_taskfile *tf)
 	if (stat & ATA_BUSY) {
 		printk("Busy }\n");	/* Data is not valid in this case */
 	} else {
-		if (stat & 0x40)	printk("DriveReady ");
-		if (stat & 0x20)	printk("DeviceFault ");
-		if (stat & 0x10)	printk("SeekComplete ");
-		if (stat & 0x08)	printk("DataRequest ");
-		if (stat & 0x04)	printk("CorrectedError ");
-		if (stat & 0x02)	printk("Index ");
-		if (stat & 0x01)	printk("Error ");
+		if (stat & ATA_DRDY)	printk("DriveReady ");
+		if (stat & ATA_DF)	printk("DeviceFault ");
+		if (stat & ATA_DSC)	printk("SeekComplete ");
+		if (stat & ATA_DRQ)	printk("DataRequest ");
+		if (stat & ATA_CORR)	printk("CorrectedError ");
+		if (stat & ATA_SENSE)	printk("Sense ");
+		if (stat & ATA_ERR)	printk("Error ");
 		printk("}\n");
 
 		if (err) {
 			printk(KERN_WARNING "ata%u: error=0x%02x { ", id, err);
-			if (err & 0x04)		printk("DriveStatusError ");
-			if (err & 0x80) {
-				if (err & 0x04)	printk("BadCRC ");
+			if (err & ATA_ABORTED)	printk("DriveStatusError ");
+			if (err & ATA_ICRC) {
+				if (err & ATA_ABORTED)
+						printk("BadCRC ");
 				else		printk("Sector ");
 			}
-			if (err & 0x40)		printk("UncorrectableError ");
-			if (err & 0x10)		printk("SectorIdNotFound ");
-			if (err & 0x02)		printk("TrackZeroNotFound ");
-			if (err & 0x01)		printk("AddrMarkNotFound ");
+			if (err & ATA_UNC)	printk("UncorrectableError ");
+			if (err & ATA_IDNF)	printk("SectorIdNotFound ");
+			if (err & ATA_TRK0NF)	printk("TrackZeroNotFound ");
+			if (err & ATA_AMNF)	printk("AddrMarkNotFound ");
 			printk("}\n");
 		}
 	}
@@ -849,40 +865,59 @@ static void ata_to_sense_error(unsigned id, u8 drv_stat, u8 drv_err, u8 *sk,
 	/* Based on the 3ware driver translation table */
 	static const unsigned char sense_table[][4] = {
 		/* BBD|ECC|ID|MAR */
-		{0xd1, 		ABORTED_COMMAND, 0x00, 0x00}, 	// Device busy                  Aborted command
+		{0xd1,		ABORTED_COMMAND, 0x00, 0x00},
+			// Device busy                  Aborted command
 		/* BBD|ECC|ID */
-		{0xd0,  	ABORTED_COMMAND, 0x00, 0x00}, 	// Device busy                  Aborted command
+		{0xd0,		ABORTED_COMMAND, 0x00, 0x00},
+			// Device busy                  Aborted command
 		/* ECC|MC|MARK */
-		{0x61, 		HARDWARE_ERROR, 0x00, 0x00}, 	// Device fault                 Hardware error
+		{0x61,		HARDWARE_ERROR, 0x00, 0x00},
+			// Device fault                 Hardware error
 		/* ICRC|ABRT */		/* NB: ICRC & !ABRT is BBD */
-		{0x84, 		ABORTED_COMMAND, 0x47, 0x00}, 	// Data CRC error               SCSI parity error
+		{0x84,		ABORTED_COMMAND, 0x47, 0x00},
+			// Data CRC error               SCSI parity error
 		/* MC|ID|ABRT|TRK0|MARK */
-		{0x37, 		NOT_READY, 0x04, 0x00}, 	// Unit offline                 Not ready
+		{0x37,		NOT_READY, 0x04, 0x00},
+			// Unit offline                 Not ready
 		/* MCR|MARK */
-		{0x09, 		NOT_READY, 0x04, 0x00}, 	// Unrecovered disk error       Not ready
+		{0x09,		NOT_READY, 0x04, 0x00},
+			// Unrecovered disk error       Not ready
 		/*  Bad address mark */
-		{0x01, 		MEDIUM_ERROR, 0x13, 0x00}, 	// Address mark not found       Address mark not found for data field
-		/* TRK0 */
-		{0x02, 		HARDWARE_ERROR, 0x00, 0x00}, 	// Track 0 not found		Hardware error
+		{0x01,		MEDIUM_ERROR, 0x13, 0x00},
+			// Address mark not found for data field
+		/* TRK0 - Track 0 not found */
+		{0x02,		HARDWARE_ERROR, 0x00, 0x00},
+			// Hardware error
 		/* Abort: 0x04 is not translated here, see below */
 		/* Media change request */
-		{0x08, 		NOT_READY, 0x04, 0x00}, 	// Media change request	  FIXME: faking offline
-		/* SRV/IDNF */
-		{0x10, 		ILLEGAL_REQUEST, 0x21, 0x00}, 	// ID not found                 Logical address out of range
-		/* MC */
-		{0x20, 		UNIT_ATTENTION, 0x28, 0x00}, 	// Media Changed		Not ready to ready change, medium may have changed
-		/* ECC */
-		{0x40, 		MEDIUM_ERROR, 0x11, 0x04}, 	// Uncorrectable ECC error      Unrecovered read error
+		{0x08,		NOT_READY, 0x04, 0x00},
+			// FIXME: faking offline
+		/* SRV/IDNF - ID not found */
+		{0x10,		ILLEGAL_REQUEST, 0x21, 0x00},
+			// Logical address out of range
+		/* MC - Media Changed */
+		{0x20,		UNIT_ATTENTION, 0x28, 0x00},
+			// Not ready to ready change, medium may have changed
+		/* ECC - Uncorrectable ECC error */
+		{0x40,		MEDIUM_ERROR, 0x11, 0x04},
+			// Unrecovered read error
 		/* BBD - block marked bad */
-		{0x80, 		MEDIUM_ERROR, 0x11, 0x04}, 	// Block marked bad		Medium error, unrecovered read error
+		{0x80,		MEDIUM_ERROR, 0x11, 0x04},
+			// Block marked bad	Medium error, unrecovered read error
 		{0xFF, 0xFF, 0xFF, 0xFF}, // END mark
 	};
 	static const unsigned char stat_table[][4] = {
 		/* Must be first because BUSY means no other bits valid */
-		{0x80, 		ABORTED_COMMAND, 0x47, 0x00},	// Busy, fake parity for now
-		{0x20, 		HARDWARE_ERROR,  0x44, 0x00}, 	// Device fault, internal target failure
-		{0x08, 		ABORTED_COMMAND, 0x47, 0x00},	// Timed out in xfer, fake parity for now
-		{0x04, 		RECOVERED_ERROR, 0x11, 0x00},	// Recovered ECC error	  Medium error, recovered
+		{0x80,		ABORTED_COMMAND, 0x47, 0x00},
+		// Busy, fake parity for now
+		{0x40,		ILLEGAL_REQUEST, 0x21, 0x04},
+		// Device ready, unaligned write command
+		{0x20,		HARDWARE_ERROR,  0x44, 0x00},
+		// Device fault, internal target failure
+		{0x08,		ABORTED_COMMAND, 0x47, 0x00},
+		// Timed out in xfer, fake parity for now
+		{0x04,		RECOVERED_ERROR, 0x11, 0x00},
+		// Recovered ECC error	  Medium error, recovered
 		{0xFF, 0xFF, 0xFF, 0xFF}, // END mark
 	};
 
@@ -1757,7 +1792,9 @@ static void ata_scsi_qc_complete(struct ata_queued_cmd *qc)
 	    ((cdb[2] & 0x20) || need_sense)) {
 		ata_gen_passthru_sense(qc);
 	} else {
-		if (!need_sense) {
+		if (qc->flags & ATA_QCFLAG_SENSE_VALID) {
+			cmd->result = SAM_STAT_CHECK_CONDITION;
+		} else if (!need_sense) {
 			cmd->result = SAM_STAT_GOOD;
 		} else {
 			/* TODO: decide which descriptor format to use
@@ -4240,10 +4277,7 @@ int ata_sas_allocate_tag(struct ata_port *ap)
 	unsigned int i, tag;
 
 	for (i = 0, tag = ap->sas_last_tag + 1; i < max_queue; i++, tag++) {
-		if (ap->flags & ATA_FLAG_LOWTAG)
-			tag = 1;
-		else
-			tag = tag < max_queue ? tag : 0;
+		tag = tag < max_queue ? tag : 0;
 
 		/* the last tag is reserved for internal command. */
 		if (tag == ATA_TAG_INTERNAL)
diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c
index 2e86e3b..cdf6215 100644
--- a/drivers/ata/libata-sff.c
+++ b/drivers/ata/libata-sff.c
@@ -3220,11 +3220,11 @@ void ata_pci_bmdma_init(struct ata_host *host)
 	 * ->sff_irq_clear method.  Try to initialize bmdma_addr
 	 * regardless of dma masks.
 	 */
-	rc = pci_set_dma_mask(pdev, ATA_DMA_MASK);
+	rc = dma_set_mask(&pdev->dev, ATA_DMA_MASK);
 	if (rc)
 		ata_bmdma_nodma(host, "failed to set dma mask");
 	if (!rc) {
-		rc = pci_set_consistent_dma_mask(pdev, ATA_DMA_MASK);
+		rc = dma_set_coherent_mask(&pdev->dev, ATA_DMA_MASK);
 		if (rc)
 			ata_bmdma_nodma(host,
 					"failed to set consistent dma mask");
diff --git a/drivers/ata/libata-trace.c b/drivers/ata/libata-trace.c
new file mode 100644
index 0000000..fd30b8c
--- /dev/null
+++ b/drivers/ata/libata-trace.c
@@ -0,0 +1,151 @@
+/*
+ * libata-trace.c - trace functions for libata
+ *
+ * Copyright 2015 Hannes Reinecke
+ * Copyright 2015 SUSE Linux GmbH
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2, or (at your option)
+ *  any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; see the file COPYING.  If not, write to
+ *  the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/kernel.h>
+#include <linux/trace_seq.h>
+#include <trace/events/libata.h>
+
+const char *
+libata_trace_parse_status(struct trace_seq *p, unsigned char status)
+{
+	const char *ret = trace_seq_buffer_ptr(p);
+
+	trace_seq_printf(p, "{ ");
+	if (status & ATA_BUSY)
+		trace_seq_printf(p, "BUSY ");
+	if (status & ATA_DRDY)
+		trace_seq_printf(p, "DRDY ");
+	if (status & ATA_DF)
+		trace_seq_printf(p, "DF ");
+	if (status & ATA_DSC)
+		trace_seq_printf(p, "DSC ");
+	if (status & ATA_DRQ)
+		trace_seq_printf(p, "DRQ ");
+	if (status & ATA_CORR)
+		trace_seq_printf(p, "CORR ");
+	if (status & ATA_SENSE)
+		trace_seq_printf(p, "SENSE ");
+	if (status & ATA_ERR)
+		trace_seq_printf(p, "ERR ");
+	trace_seq_putc(p, '}');
+	trace_seq_putc(p, 0);
+
+	return ret;
+}
+
+const char *
+libata_trace_parse_eh_action(struct trace_seq *p, unsigned int eh_action)
+{
+	const char *ret = trace_seq_buffer_ptr(p);
+
+	trace_seq_printf(p, "%x", eh_action);
+	if (eh_action) {
+		trace_seq_printf(p, "{ ");
+		if (eh_action & ATA_EH_REVALIDATE)
+			trace_seq_printf(p, "REVALIDATE ");
+		if (eh_action & (ATA_EH_SOFTRESET | ATA_EH_HARDRESET))
+			trace_seq_printf(p, "RESET ");
+		else if (eh_action & ATA_EH_SOFTRESET)
+			trace_seq_printf(p, "SOFTRESET ");
+		else if (eh_action & ATA_EH_HARDRESET)
+			trace_seq_printf(p, "HARDRESET ");
+		if (eh_action & ATA_EH_ENABLE_LINK)
+			trace_seq_printf(p, "ENABLE_LINK ");
+		if (eh_action & ATA_EH_PARK)
+			trace_seq_printf(p, "PARK ");
+		trace_seq_putc(p, '}');
+	}
+	trace_seq_putc(p, 0);
+
+	return ret;
+}
+
+const char *
+libata_trace_parse_eh_err_mask(struct trace_seq *p, unsigned int eh_err_mask)
+{
+	const char *ret = trace_seq_buffer_ptr(p);
+
+	trace_seq_printf(p, "%x", eh_err_mask);
+	if (eh_err_mask) {
+		trace_seq_printf(p, "{ ");
+		if (eh_err_mask & AC_ERR_DEV)
+			trace_seq_printf(p, "DEV ");
+		if (eh_err_mask & AC_ERR_HSM)
+			trace_seq_printf(p, "HSM ");
+		if (eh_err_mask & AC_ERR_TIMEOUT)
+			trace_seq_printf(p, "TIMEOUT ");
+		if (eh_err_mask & AC_ERR_MEDIA)
+			trace_seq_printf(p, "MEDIA ");
+		if (eh_err_mask & AC_ERR_ATA_BUS)
+			trace_seq_printf(p, "ATA_BUS ");
+		if (eh_err_mask & AC_ERR_HOST_BUS)
+			trace_seq_printf(p, "HOST_BUS ");
+		if (eh_err_mask & AC_ERR_SYSTEM)
+			trace_seq_printf(p, "SYSTEM ");
+		if (eh_err_mask & AC_ERR_INVALID)
+			trace_seq_printf(p, "INVALID ");
+		if (eh_err_mask & AC_ERR_OTHER)
+			trace_seq_printf(p, "OTHER ");
+		if (eh_err_mask & AC_ERR_NODEV_HINT)
+			trace_seq_printf(p, "NODEV_HINT ");
+		if (eh_err_mask & AC_ERR_NCQ)
+			trace_seq_printf(p, "NCQ ");
+		trace_seq_putc(p, '}');
+	}
+	trace_seq_putc(p, 0);
+
+	return ret;
+}
+
+const char *
+libata_trace_parse_qc_flags(struct trace_seq *p, unsigned int qc_flags)
+{
+	const char *ret = trace_seq_buffer_ptr(p);
+
+	trace_seq_printf(p, "%x", qc_flags);
+	if (qc_flags) {
+		trace_seq_printf(p, "{ ");
+		if (qc_flags & ATA_QCFLAG_ACTIVE)
+			trace_seq_printf(p, "ACTIVE ");
+		if (qc_flags & ATA_QCFLAG_DMAMAP)
+			trace_seq_printf(p, "DMAMAP ");
+		if (qc_flags & ATA_QCFLAG_IO)
+			trace_seq_printf(p, "IO ");
+		if (qc_flags & ATA_QCFLAG_RESULT_TF)
+			trace_seq_printf(p, "RESULT_TF ");
+		if (qc_flags & ATA_QCFLAG_CLEAR_EXCL)
+			trace_seq_printf(p, "CLEAR_EXCL ");
+		if (qc_flags & ATA_QCFLAG_QUIET)
+			trace_seq_printf(p, "QUIET ");
+		if (qc_flags & ATA_QCFLAG_RETRY)
+			trace_seq_printf(p, "RETRY ");
+		if (qc_flags & ATA_QCFLAG_FAILED)
+			trace_seq_printf(p, "FAILED ");
+		if (qc_flags & ATA_QCFLAG_SENSE_VALID)
+			trace_seq_printf(p, "SENSE_VALID ");
+		if (qc_flags & ATA_QCFLAG_EH_SCHEDULED)
+			trace_seq_printf(p, "EH_SCHEDULED ");
+		trace_seq_putc(p, '}');
+	}
+	trace_seq_putc(p, 0);
+
+	return ret;
+}
diff --git a/drivers/ata/libata.h b/drivers/ata/libata.h
index f840ca1..a998a17 100644
--- a/drivers/ata/libata.h
+++ b/drivers/ata/libata.h
@@ -67,7 +67,8 @@ extern struct ata_queued_cmd *ata_qc_new_init(struct ata_device *dev, int tag);
 extern int ata_build_rw_tf(struct ata_taskfile *tf, struct ata_device *dev,
 			   u64 block, u32 n_block, unsigned int tf_flags,
 			   unsigned int tag);
-extern u64 ata_tf_read_block(struct ata_taskfile *tf, struct ata_device *dev);
+extern u64 ata_tf_read_block(const struct ata_taskfile *tf,
+			     struct ata_device *dev);
 extern unsigned ata_exec_internal(struct ata_device *dev,
 				  struct ata_taskfile *tf, const u8 *cdb,
 				  int dma_dir, void *buf, unsigned int buflen,
@@ -137,6 +138,9 @@ extern int ata_scsi_add_hosts(struct ata_host *host,
 			      struct scsi_host_template *sht);
 extern void ata_scsi_scan_host(struct ata_port *ap, int sync);
 extern int ata_scsi_offline_dev(struct ata_device *dev);
+extern void ata_scsi_set_sense(struct scsi_cmnd *cmd, u8 sk, u8 asc, u8 ascq);
+extern void ata_scsi_set_sense_information(struct scsi_cmnd *cmd,
+					   const struct ata_taskfile *tf);
 extern void ata_scsi_media_change_notify(struct ata_device *dev);
 extern void ata_scsi_hotplug(struct work_struct *work);
 extern void ata_schedule_scsi_eh(struct Scsi_Host *shost);
diff --git a/drivers/ata/pata_atp867x.c b/drivers/ata/pata_atp867x.c
index a705cfc..3ea50dc 100644
--- a/drivers/ata/pata_atp867x.c
+++ b/drivers/ata/pata_atp867x.c
@@ -475,11 +475,11 @@ static int atp867x_ata_pci_sff_init_host(struct ata_host *host)
 
 	atp867x_fixup(host);
 
-	rc = pci_set_dma_mask(pdev, ATA_DMA_MASK);
+	rc = dma_set_mask(&pdev->dev, ATA_DMA_MASK);
 	if (rc)
 		return rc;
 
-	rc = pci_set_consistent_dma_mask(pdev, ATA_DMA_MASK);
+	rc = dma_set_coherent_mask(&pdev->dev, ATA_DMA_MASK);
 	return rc;
 }
 
diff --git a/drivers/ata/pata_cs5520.c b/drivers/ata/pata_cs5520.c
index d65cb9d..4cb2407 100644
--- a/drivers/ata/pata_cs5520.c
+++ b/drivers/ata/pata_cs5520.c
@@ -164,11 +164,11 @@ static int cs5520_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
 		return -ENODEV;
 	}
 
-	if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) {
+	if (dma_set_mask(&pdev->dev, DMA_BIT_MASK(32))) {
 		printk(KERN_ERR DRV_NAME ": unable to configure DMA mask.\n");
 		return -ENODEV;
 	}
-	if (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32))) {
+	if (dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32))) {
 		printk(KERN_ERR DRV_NAME ": unable to configure consistent DMA mask.\n");
 		return -ENODEV;
 	}
diff --git a/drivers/ata/pata_hpt3x3.c b/drivers/ata/pata_hpt3x3.c
index d019cdd..b2fc023 100644
--- a/drivers/ata/pata_hpt3x3.c
+++ b/drivers/ata/pata_hpt3x3.c
@@ -221,10 +221,10 @@ static int hpt3x3_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
 	if (rc)
 		return rc;
 	host->iomap = pcim_iomap_table(pdev);
-	rc = pci_set_dma_mask(pdev, ATA_DMA_MASK);
+	rc = dma_set_mask(&pdev->dev, ATA_DMA_MASK);
 	if (rc)
 		return rc;
-	rc = pci_set_consistent_dma_mask(pdev, ATA_DMA_MASK);
+	rc = dma_set_coherent_mask(&pdev->dev, ATA_DMA_MASK);
 	if (rc)
 		return rc;
 
diff --git a/drivers/ata/pata_ninja32.c b/drivers/ata/pata_ninja32.c
index efb272d..633aa29 100644
--- a/drivers/ata/pata_ninja32.c
+++ b/drivers/ata/pata_ninja32.c
@@ -122,10 +122,10 @@ static int ninja32_init_one(struct pci_dev *dev, const struct pci_device_id *id)
 		return rc;
 
 	host->iomap = pcim_iomap_table(dev);
-	rc = pci_set_dma_mask(dev, ATA_DMA_MASK);
+	rc = dma_set_mask(&dev->dev, ATA_DMA_MASK);
 	if (rc)
 		return rc;
-	rc = pci_set_consistent_dma_mask(dev, ATA_DMA_MASK);
+	rc = dma_set_coherent_mask(&dev->dev, ATA_DMA_MASK);
 	if (rc)
 		return rc;
 	pci_set_master(dev);
diff --git a/drivers/ata/pata_pdc2027x.c b/drivers/ata/pata_pdc2027x.c
index dca8251..d9ef9e27 100644
--- a/drivers/ata/pata_pdc2027x.c
+++ b/drivers/ata/pata_pdc2027x.c
@@ -730,11 +730,11 @@ static int pdc2027x_init_one(struct pci_dev *pdev,
 		return rc;
 	host->iomap = pcim_iomap_table(pdev);
 
-	rc = pci_set_dma_mask(pdev, ATA_DMA_MASK);
+	rc = dma_set_mask(&pdev->dev, ATA_DMA_MASK);
 	if (rc)
 		return rc;
 
-	rc = pci_set_consistent_dma_mask(pdev, ATA_DMA_MASK);
+	rc = dma_set_coherent_mask(&pdev->dev, ATA_DMA_MASK);
 	if (rc)
 		return rc;
 
diff --git a/drivers/ata/pata_scc.c b/drivers/ata/pata_scc.c
index 7f4cb76..5cd60d6 100644
--- a/drivers/ata/pata_scc.c
+++ b/drivers/ata/pata_scc.c
@@ -1029,10 +1029,10 @@ static int scc_host_init(struct ata_host *host)
 	if (rc)
 		return rc;
 
-	rc = pci_set_dma_mask(pdev, ATA_DMA_MASK);
+	rc = dma_set_mask(&pdev->dev, ATA_DMA_MASK);
 	if (rc)
 		return rc;
-	rc = pci_set_consistent_dma_mask(pdev, ATA_DMA_MASK);
+	rc = dma_set_coherent_mask(&pdev->dev, ATA_DMA_MASK);
 	if (rc)
 		return rc;
 
diff --git a/drivers/ata/pata_sil680.c b/drivers/ata/pata_sil680.c
index f597edc..c14071b 100644
--- a/drivers/ata/pata_sil680.c
+++ b/drivers/ata/pata_sil680.c
@@ -374,10 +374,10 @@ static int sil680_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
 	host->iomap = pcim_iomap_table(pdev);
 
 	/* Setup DMA masks */
-	rc = pci_set_dma_mask(pdev, ATA_DMA_MASK);
+	rc = dma_set_mask(&pdev->dev, ATA_DMA_MASK);
 	if (rc)
 		return rc;
-	rc = pci_set_consistent_dma_mask(pdev, ATA_DMA_MASK);
+	rc = dma_set_coherent_mask(&pdev->dev, ATA_DMA_MASK);
 	if (rc)
 		return rc;
 	pci_set_master(pdev);
diff --git a/drivers/ata/pdc_adma.c b/drivers/ata/pdc_adma.c
index f10631b..64d682c 100644
--- a/drivers/ata/pdc_adma.c
+++ b/drivers/ata/pdc_adma.c
@@ -593,12 +593,12 @@ static int adma_set_dma_masks(struct pci_dev *pdev, void __iomem *mmio_base)
 {
 	int rc;
 
-	rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
+	rc = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
 	if (rc) {
 		dev_err(&pdev->dev, "32-bit DMA enable failed\n");
 		return rc;
 	}
-	rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
+	rc = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
 	if (rc) {
 		dev_err(&pdev->dev, "32-bit consistent DMA enable failed\n");
 		return rc;
diff --git a/drivers/ata/sata_dwc_460ex.c b/drivers/ata/sata_dwc_460ex.c
index fdb0f28..9020349 100644
--- a/drivers/ata/sata_dwc_460ex.c
+++ b/drivers/ata/sata_dwc_460ex.c
@@ -36,11 +36,16 @@
 #include <linux/platform_device.h>
 #include <linux/libata.h>
 #include <linux/slab.h>
+
 #include "libata.h"
 
 #include <scsi/scsi_host.h>
 #include <scsi/scsi_cmnd.h>
 
+/* Supported DMA engine drivers */
+#include <linux/platform_data/dma-dw.h>
+#include <linux/dma/dw.h>
+
 /* These two are defined in "libata.h" */
 #undef	DRV_NAME
 #undef	DRV_VERSION
@@ -60,153 +65,9 @@
 #define NO_IRQ		0
 #endif
 
-/* SATA DMA driver Globals */
-#define DMA_NUM_CHANS		1
-#define DMA_NUM_CHAN_REGS	8
-
-/* SATA DMA Register definitions */
 #define AHB_DMA_BRST_DFLT	64	/* 16 data items burst length*/
 
-struct dmareg {
-	u32 low;		/* Low bits 0-31 */
-	u32 high;		/* High bits 32-63 */
-};
-
-/* DMA Per Channel registers */
-struct dma_chan_regs {
-	struct dmareg sar;	/* Source Address */
-	struct dmareg dar;	/* Destination address */
-	struct dmareg llp;	/* Linked List Pointer */
-	struct dmareg ctl;	/* Control */
-	struct dmareg sstat;	/* Source Status not implemented in core */
-	struct dmareg dstat;	/* Destination Status not implemented in core*/
-	struct dmareg sstatar;	/* Source Status Address not impl in core */
-	struct dmareg dstatar;	/* Destination Status Address not implemente */
-	struct dmareg cfg;	/* Config */
-	struct dmareg sgr;	/* Source Gather */
-	struct dmareg dsr;	/* Destination Scatter */
-};
-
-/* Generic Interrupt Registers */
-struct dma_interrupt_regs {
-	struct dmareg tfr;	/* Transfer Interrupt */
-	struct dmareg block;	/* Block Interrupt */
-	struct dmareg srctran;	/* Source Transfer Interrupt */
-	struct dmareg dsttran;	/* Dest Transfer Interrupt */
-	struct dmareg error;	/* Error */
-};
-
-struct ahb_dma_regs {
-	struct dma_chan_regs	chan_regs[DMA_NUM_CHAN_REGS];
-	struct dma_interrupt_regs interrupt_raw;	/* Raw Interrupt */
-	struct dma_interrupt_regs interrupt_status;	/* Interrupt Status */
-	struct dma_interrupt_regs interrupt_mask;	/* Interrupt Mask */
-	struct dma_interrupt_regs interrupt_clear;	/* Interrupt Clear */
-	struct dmareg		statusInt;	/* Interrupt combined*/
-	struct dmareg		rq_srcreg;	/* Src Trans Req */
-	struct dmareg		rq_dstreg;	/* Dst Trans Req */
-	struct dmareg		rq_sgl_srcreg;	/* Sngl Src Trans Req*/
-	struct dmareg		rq_sgl_dstreg;	/* Sngl Dst Trans Req*/
-	struct dmareg		rq_lst_srcreg;	/* Last Src Trans Req*/
-	struct dmareg		rq_lst_dstreg;	/* Last Dst Trans Req*/
-	struct dmareg		dma_cfg;		/* DMA Config */
-	struct dmareg		dma_chan_en;		/* DMA Channel Enable*/
-	struct dmareg		dma_id;			/* DMA ID */
-	struct dmareg		dma_test;		/* DMA Test */
-	struct dmareg		res1;			/* reserved */
-	struct dmareg		res2;			/* reserved */
-	/*
-	 * DMA Comp Params
-	 * Param 6 = dma_param[0], Param 5 = dma_param[1],
-	 * Param 4 = dma_param[2] ...
-	 */
-	struct dmareg		dma_params[6];
-};
-
-/* Data structure for linked list item */
-struct lli {
-	u32		sar;		/* Source Address */
-	u32		dar;		/* Destination address */
-	u32		llp;		/* Linked List Pointer */
-	struct dmareg	ctl;		/* Control */
-	struct dmareg	dstat;		/* Destination Status */
-};
-
-enum {
-	SATA_DWC_DMAC_LLI_SZ =	(sizeof(struct lli)),
-	SATA_DWC_DMAC_LLI_NUM =	256,
-	SATA_DWC_DMAC_LLI_TBL_SZ = (SATA_DWC_DMAC_LLI_SZ * \
-					SATA_DWC_DMAC_LLI_NUM),
-	SATA_DWC_DMAC_TWIDTH_BYTES = 4,
-	SATA_DWC_DMAC_CTRL_TSIZE_MAX = (0x00000800 * \
-						SATA_DWC_DMAC_TWIDTH_BYTES),
-};
-
-/* DMA Register Operation Bits */
-enum {
-	DMA_EN	=		0x00000001, /* Enable AHB DMA */
-	DMA_CTL_LLP_SRCEN =	0x10000000, /* Blk chain enable Src */
-	DMA_CTL_LLP_DSTEN =	0x08000000, /* Blk chain enable Dst */
-};
-
-#define	DMA_CTL_BLK_TS(size)	((size) & 0x000000FFF)	/* Blk Transfer size */
-#define DMA_CHANNEL(ch)		(0x00000001 << (ch))	/* Select channel */
-	/* Enable channel */
-#define	DMA_ENABLE_CHAN(ch)	((0x00000001 << (ch)) |			\
-				 ((0x000000001 << (ch)) << 8))
-	/* Disable channel */
-#define	DMA_DISABLE_CHAN(ch)	(0x00000000 | ((0x000000001 << (ch)) << 8))
-	/* Transfer Type & Flow Controller */
-#define	DMA_CTL_TTFC(type)	(((type) & 0x7) << 20)
-#define	DMA_CTL_SMS(num)	(((num) & 0x3) << 25) /* Src Master Select */
-#define	DMA_CTL_DMS(num)	(((num) & 0x3) << 23)/* Dst Master Select */
-	/* Src Burst Transaction Length */
-#define DMA_CTL_SRC_MSIZE(size) (((size) & 0x7) << 14)
-	/* Dst Burst Transaction Length */
-#define	DMA_CTL_DST_MSIZE(size) (((size) & 0x7) << 11)
-	/* Source Transfer Width */
-#define	DMA_CTL_SRC_TRWID(size) (((size) & 0x7) << 4)
-	/* Destination Transfer Width */
-#define	DMA_CTL_DST_TRWID(size) (((size) & 0x7) << 1)
-
-/* Assign HW handshaking interface (x) to destination / source peripheral */
-#define	DMA_CFG_HW_HS_DEST(int_num) (((int_num) & 0xF) << 11)
-#define	DMA_CFG_HW_HS_SRC(int_num) (((int_num) & 0xF) << 7)
-#define	DMA_CFG_HW_CH_PRIOR(int_num) (((int_num) & 0xF) << 5)
-#define	DMA_LLP_LMS(addr, master) (((addr) & 0xfffffffc) | (master))
-
-/*
- * This define is used to set block chaining disabled in the control low
- * register.  It is already in little endian format so it can be &'d dirctly.
- * It is essentially: cpu_to_le32(~(DMA_CTL_LLP_SRCEN | DMA_CTL_LLP_DSTEN))
- */
 enum {
-	DMA_CTL_LLP_DISABLE_LE32 = 0xffffffe7,
-	DMA_CTL_TTFC_P2M_DMAC =	0x00000002, /* Per to mem, DMAC cntr */
-	DMA_CTL_TTFC_M2P_PER =	0x00000003, /* Mem to per, peripheral cntr */
-	DMA_CTL_SINC_INC =	0x00000000, /* Source Address Increment */
-	DMA_CTL_SINC_DEC =	0x00000200,
-	DMA_CTL_SINC_NOCHANGE =	0x00000400,
-	DMA_CTL_DINC_INC =	0x00000000, /* Destination Address Increment */
-	DMA_CTL_DINC_DEC =	0x00000080,
-	DMA_CTL_DINC_NOCHANGE =	0x00000100,
-	DMA_CTL_INT_EN =	0x00000001, /* Interrupt Enable */
-
-/* Channel Configuration Register high bits */
-	DMA_CFG_FCMOD_REQ =	0x00000001, /* Flow Control - request based */
-	DMA_CFG_PROTCTL	=	(0x00000003 << 2),/* Protection Control */
-
-/* Channel Configuration Register low bits */
-	DMA_CFG_RELD_DST =	0x80000000, /* Reload Dest / Src Addr */
-	DMA_CFG_RELD_SRC =	0x40000000,
-	DMA_CFG_HS_SELSRC =	0x00000800, /* Software handshake Src/ Dest */
-	DMA_CFG_HS_SELDST =	0x00000400,
-	DMA_CFG_FIFOEMPTY =     (0x00000001 << 9), /* FIFO Empty bit */
-
-/* Channel Linked List Pointer Register */
-	DMA_LLP_AHBMASTER1 =	0,	/* List Master Select */
-	DMA_LLP_AHBMASTER2 =	1,
-
 	SATA_DWC_MAX_PORTS = 1,
 
 	SATA_DWC_SCR_OFFSET = 0x24,
@@ -287,7 +148,7 @@ struct sata_dwc_device {
 	struct ata_host		*host;
 	u8 __iomem		*reg_base;
 	struct sata_dwc_regs	*sata_dwc_regs;	/* DW Synopsys SATA specific */
-	int			irq_dma;
+	struct dw_dma_chip	*dma;
 };
 
 #define SATA_DWC_QCMD_MAX	32
@@ -295,10 +156,13 @@ struct sata_dwc_device {
 struct sata_dwc_device_port {
 	struct sata_dwc_device	*hsdev;
 	int			cmd_issued[SATA_DWC_QCMD_MAX];
-	struct lli		*llit[SATA_DWC_QCMD_MAX];  /* DMA LLI table */
-	dma_addr_t		llit_dma[SATA_DWC_QCMD_MAX];
-	u32			dma_chan[SATA_DWC_QCMD_MAX];
 	int			dma_pending[SATA_DWC_QCMD_MAX];
+
+	/* DMA info */
+	struct dw_dma_slave		*dws;
+	struct dma_chan			*chan;
+	struct dma_async_tx_descriptor	*desc[SATA_DWC_QCMD_MAX];
+	u32				dma_interrupt_count;
 };
 
 /*
@@ -330,14 +194,17 @@ struct sata_dwc_host_priv {
 	void	__iomem	 *scr_addr_sstatus;
 	u32	sata_dwc_sactive_issued ;
 	u32	sata_dwc_sactive_queued ;
-	u32	dma_interrupt_count;
-	struct	ahb_dma_regs	*sata_dma_regs;
-	struct	device	*dwc_dev;
-	int	dma_channel;
 };
 
 static struct sata_dwc_host_priv host_pvt;
 
+static struct dw_dma_slave sata_dwc_dma_dws = {
+	.src_id = 0,
+	.dst_id = 0,
+	.src_master = 0,
+	.dst_master = 1,
+};
+
 /*
  * Prototypes
  */
@@ -347,12 +214,6 @@ static int sata_dwc_qc_complete(struct ata_port *ap, struct ata_queued_cmd *qc,
 static void sata_dwc_dma_xfer_complete(struct ata_port *ap, u32 check_status);
 static void sata_dwc_port_stop(struct ata_port *ap);
 static void sata_dwc_clear_dmacr(struct sata_dwc_device_port *hsdevp, u8 tag);
-static int dma_dwc_init(struct sata_dwc_device *hsdev, int irq);
-static void dma_dwc_exit(struct sata_dwc_device *hsdev);
-static int dma_dwc_xfer_setup(struct scatterlist *sg, int num_elems,
-			      struct lli *lli, dma_addr_t dma_lli,
-			      void __iomem *addr, int dir);
-static void dma_dwc_xfer_start(int dma_ch);
 
 static const char *get_prot_descript(u8 protocol)
 {
@@ -390,90 +251,23 @@ static const char *get_dma_dir_descript(int dma_dir)
 	}
 }
 
-static void sata_dwc_tf_dump(struct ata_taskfile *tf)
+static void sata_dwc_tf_dump(struct ata_port *ap, struct ata_taskfile *tf)
 {
-	dev_vdbg(host_pvt.dwc_dev, "taskfile cmd: 0x%02x protocol: %s flags:"
-		"0x%lx device: %x\n", tf->command,
-		get_prot_descript(tf->protocol), tf->flags, tf->device);
-	dev_vdbg(host_pvt.dwc_dev, "feature: 0x%02x nsect: 0x%x lbal: 0x%x "
-		"lbam: 0x%x lbah: 0x%x\n", tf->feature, tf->nsect, tf->lbal,
-		 tf->lbam, tf->lbah);
-	dev_vdbg(host_pvt.dwc_dev, "hob_feature: 0x%02x hob_nsect: 0x%x "
-		"hob_lbal: 0x%x hob_lbam: 0x%x hob_lbah: 0x%x\n",
+	dev_vdbg(ap->dev,
+		"taskfile cmd: 0x%02x protocol: %s flags: 0x%lx device: %x\n",
+		tf->command, get_prot_descript(tf->protocol), tf->flags,
+		tf->device);
+	dev_vdbg(ap->dev,
+		"feature: 0x%02x nsect: 0x%x lbal: 0x%x lbam: 0x%x lbah: 0x%x\n",
+		tf->feature, tf->nsect, tf->lbal, tf->lbam, tf->lbah);
+	dev_vdbg(ap->dev,
+		"hob_feature: 0x%02x hob_nsect: 0x%x hob_lbal: 0x%x hob_lbam: 0x%x hob_lbah: 0x%x\n",
 		tf->hob_feature, tf->hob_nsect, tf->hob_lbal, tf->hob_lbam,
 		tf->hob_lbah);
 }
 
-/*
- * Function: get_burst_length_encode
- * arguments: datalength: length in bytes of data
- * returns value to be programmed in register corresponding to data length
- * This value is effectively the log(base 2) of the length
- */
-static  int get_burst_length_encode(int datalength)
-{
-	int items = datalength >> 2;	/* div by 4 to get lword count */
-
-	if (items >= 64)
-		return 5;
-
-	if (items >= 32)
-		return 4;
-
-	if (items >= 16)
-		return 3;
-
-	if (items >= 8)
-		return 2;
-
-	if (items >= 4)
-		return 1;
-
-	return 0;
-}
-
-static  void clear_chan_interrupts(int c)
+static void dma_dwc_xfer_done(void *hsdev_instance)
 {
-	out_le32(&(host_pvt.sata_dma_regs->interrupt_clear.tfr.low),
-		 DMA_CHANNEL(c));
-	out_le32(&(host_pvt.sata_dma_regs->interrupt_clear.block.low),
-		 DMA_CHANNEL(c));
-	out_le32(&(host_pvt.sata_dma_regs->interrupt_clear.srctran.low),
-		 DMA_CHANNEL(c));
-	out_le32(&(host_pvt.sata_dma_regs->interrupt_clear.dsttran.low),
-		 DMA_CHANNEL(c));
-	out_le32(&(host_pvt.sata_dma_regs->interrupt_clear.error.low),
-		 DMA_CHANNEL(c));
-}
-
-/*
- * Function: dma_request_channel
- * arguments: None
- * returns channel number if available else -1
- * This function assigns the next available DMA channel from the list to the
- * requester
- */
-static int dma_request_channel(void)
-{
-	/* Check if the channel is not currently in use */
-	if (!(in_le32(&(host_pvt.sata_dma_regs->dma_chan_en.low)) &
-		DMA_CHANNEL(host_pvt.dma_channel)))
-		return host_pvt.dma_channel;
-	dev_err(host_pvt.dwc_dev, "%s Channel %d is currently in use\n",
-		__func__, host_pvt.dma_channel);
-	return -1;
-}
-
-/*
- * Function: dma_dwc_interrupt
- * arguments: irq, dev_id, pt_regs
- * returns channel number if available else -1
- * Interrupt Handler for DW AHB SATA DMA
- */
-static irqreturn_t dma_dwc_interrupt(int irq, void *hsdev_instance)
-{
-	int chan;
-	u32 tfr_reg, err_reg;
 	unsigned long flags;
 	struct sata_dwc_device *hsdev = hsdev_instance;
 	struct ata_host *host = (struct ata_host *)hsdev->host;
@@ -487,341 +281,65 @@ static irqreturn_t dma_dwc_interrupt(int irq, void *hsdev_instance)
 	hsdevp = HSDEVP_FROM_AP(ap);
 	tag = ap->link.active_tag;
 
-	tfr_reg = in_le32(&(host_pvt.sata_dma_regs->interrupt_status.tfr\
-			.low));
-	err_reg = in_le32(&(host_pvt.sata_dma_regs->interrupt_status.error\
-			.low));
-
-	dev_dbg(ap->dev, "eot=0x%08x err=0x%08x pending=%d active port=%d\n",
-		tfr_reg, err_reg, hsdevp->dma_pending[tag], port);
-
-	chan = host_pvt.dma_channel;
-	if (chan >= 0) {
-		/* Check for end-of-transfer interrupt. */
-		if (tfr_reg & DMA_CHANNEL(chan)) {
-			/*
-			 * Each DMA command produces 2 interrupts.  Only
-			 * complete the command after both interrupts have been
-			 * seen. (See sata_dwc_isr())
-			 */
-			host_pvt.dma_interrupt_count++;
-			sata_dwc_clear_dmacr(hsdevp, tag);
-
-			if (hsdevp->dma_pending[tag] ==
-			    SATA_DWC_DMA_PENDING_NONE) {
-				dev_err(ap->dev, "DMA not pending eot=0x%08x "
-					"err=0x%08x tag=0x%02x pending=%d\n",
-					tfr_reg, err_reg, tag,
-					hsdevp->dma_pending[tag]);
-			}
-
-			if ((host_pvt.dma_interrupt_count % 2) == 0)
-				sata_dwc_dma_xfer_complete(ap, 1);
-
-			/* Clear the interrupt */
-			out_le32(&(host_pvt.sata_dma_regs->interrupt_clear\
-				.tfr.low),
-				 DMA_CHANNEL(chan));
-		}
-
-		/* Check for error interrupt. */
-		if (err_reg & DMA_CHANNEL(chan)) {
-			/* TODO Need error handler ! */
-			dev_err(ap->dev, "error interrupt err_reg=0x%08x\n",
-				err_reg);
-
-			/* Clear the interrupt. */
-			out_le32(&(host_pvt.sata_dma_regs->interrupt_clear\
-				.error.low),
-				 DMA_CHANNEL(chan));
-		}
-	}
-	spin_unlock_irqrestore(&host->lock, flags);
-	return IRQ_HANDLED;
-}
-
-/*
- * Function: dma_request_interrupts
- * arguments: hsdev
- * returns status
- * This function registers ISR for a particular DMA channel interrupt
- */
-static int dma_request_interrupts(struct sata_dwc_device *hsdev, int irq)
-{
-	int retval = 0;
-	int chan = host_pvt.dma_channel;
-
-	if (chan >= 0) {
-		/* Unmask error interrupt */
-		out_le32(&(host_pvt.sata_dma_regs)->interrupt_mask.error.low,
-			 DMA_ENABLE_CHAN(chan));
-
-		/* Unmask end-of-transfer interrupt */
-		out_le32(&(host_pvt.sata_dma_regs)->interrupt_mask.tfr.low,
-			 DMA_ENABLE_CHAN(chan));
-	}
-
-	retval = request_irq(irq, dma_dwc_interrupt, 0, "SATA DMA", hsdev);
-	if (retval) {
-		dev_err(host_pvt.dwc_dev, "%s: could not get IRQ %d\n",
-		__func__, irq);
-		return -ENODEV;
-	}
-
-	/* Mark this interrupt as requested */
-	hsdev->irq_dma = irq;
-	return 0;
-}
-
-/*
- * Function: map_sg_to_lli
- * The Synopsis driver has a comment proposing that better performance
- * is possible by only enabling interrupts on the last item in the linked list.
- * However, it seems that could be a problem if an error happened on one of the
- * first items.  The transfer would halt, but no error interrupt would occur.
- * Currently this function sets interrupts enabled for each linked list item:
- * DMA_CTL_INT_EN.
- */
-static int map_sg_to_lli(struct scatterlist *sg, int num_elems,
-			struct lli *lli, dma_addr_t dma_lli,
-			void __iomem *dmadr_addr, int dir)
-{
-	int i, idx = 0;
-	int fis_len = 0;
-	dma_addr_t next_llp;
-	int bl;
-	int sms_val, dms_val;
-
-	sms_val = 0;
-	dms_val = 1 + host_pvt.dma_channel;
-	dev_dbg(host_pvt.dwc_dev,
-		"%s: sg=%p nelem=%d lli=%p dma_lli=0x%pad dmadr=0x%p\n",
-		__func__, sg, num_elems, lli, &dma_lli, dmadr_addr);
-
-	bl = get_burst_length_encode(AHB_DMA_BRST_DFLT);
-
-	for (i = 0; i < num_elems; i++, sg++) {
-		u32 addr, offset;
-		u32 sg_len, len;
-
-		addr = (u32) sg_dma_address(sg);
-		sg_len = sg_dma_len(sg);
-
-		dev_dbg(host_pvt.dwc_dev, "%s: elem=%d sg_addr=0x%x sg_len"
-			"=%d\n", __func__, i, addr, sg_len);
-
-		while (sg_len) {
-			if (idx >= SATA_DWC_DMAC_LLI_NUM) {
-				/* The LLI table is not large enough. */
-				dev_err(host_pvt.dwc_dev, "LLI table overrun "
-				"(idx=%d)\n", idx);
-				break;
-			}
-			len = (sg_len > SATA_DWC_DMAC_CTRL_TSIZE_MAX) ?
-				SATA_DWC_DMAC_CTRL_TSIZE_MAX : sg_len;
-
-			offset = addr & 0xffff;
-			if ((offset + sg_len) > 0x10000)
-				len = 0x10000 - offset;
-
-			/*
-			 * Make sure a LLI block is not created that will span
-			 * 8K max FIS boundary.  If the block spans such a FIS
-			 * boundary, there is a chance that a DMA burst will
-			 * cross that boundary -- this results in an error in
-			 * the host controller.
-			 */
-			if (fis_len + len > 8192) {
-				dev_dbg(host_pvt.dwc_dev, "SPLITTING: fis_len="
-					"%d(0x%x) len=%d(0x%x)\n", fis_len,
-					 fis_len, len, len);
-				len = 8192 - fis_len;
-				fis_len = 0;
-			} else {
-				fis_len += len;
-			}
-			if (fis_len == 8192)
-				fis_len = 0;
-
-			/*
-			 * Set DMA addresses and lower half of control register
-			 * based on direction.
-			 */
-			if (dir == DMA_FROM_DEVICE) {
-				lli[idx].dar = cpu_to_le32(addr);
-				lli[idx].sar = cpu_to_le32((u32)dmadr_addr);
-
-				lli[idx].ctl.low = cpu_to_le32(
-					DMA_CTL_TTFC(DMA_CTL_TTFC_P2M_DMAC) |
-					DMA_CTL_SMS(sms_val) |
-					DMA_CTL_DMS(dms_val) |
-					DMA_CTL_SRC_MSIZE(bl) |
-					DMA_CTL_DST_MSIZE(bl) |
-					DMA_CTL_SINC_NOCHANGE |
-					DMA_CTL_SRC_TRWID(2) |
-					DMA_CTL_DST_TRWID(2) |
-					DMA_CTL_INT_EN |
-					DMA_CTL_LLP_SRCEN |
-					DMA_CTL_LLP_DSTEN);
-			} else {	/* DMA_TO_DEVICE */
-				lli[idx].sar = cpu_to_le32(addr);
-				lli[idx].dar = cpu_to_le32((u32)dmadr_addr);
-
-				lli[idx].ctl.low = cpu_to_le32(
-					DMA_CTL_TTFC(DMA_CTL_TTFC_M2P_PER) |
-					DMA_CTL_SMS(dms_val) |
-					DMA_CTL_DMS(sms_val) |
-					DMA_CTL_SRC_MSIZE(bl) |
-					DMA_CTL_DST_MSIZE(bl) |
-					DMA_CTL_DINC_NOCHANGE |
-					DMA_CTL_SRC_TRWID(2) |
-					DMA_CTL_DST_TRWID(2) |
-					DMA_CTL_INT_EN |
-					DMA_CTL_LLP_SRCEN |
-					DMA_CTL_LLP_DSTEN);
-			}
-
-			dev_dbg(host_pvt.dwc_dev, "%s setting ctl.high len: "
-				"0x%08x val: 0x%08x\n", __func__,
-				len, DMA_CTL_BLK_TS(len / 4));
-
-			/* Program the LLI CTL high register */
-			lli[idx].ctl.high = cpu_to_le32(DMA_CTL_BLK_TS\
-						(len / 4));
-
-			/* Program the next pointer.  The next pointer must be
-			 * the physical address, not the virtual address.
-			 */
-			next_llp = (dma_lli + ((idx + 1) * sizeof(struct \
-							lli)));
-
-			/* The last 2 bits encode the list master select. */
-			next_llp = DMA_LLP_LMS(next_llp, DMA_LLP_AHBMASTER2);
-
-			lli[idx].llp = cpu_to_le32(next_llp);
-			idx++;
-			sg_len -= len;
-			addr += len;
-		}
-	}
-
 	/*
-	 * The last next ptr has to be zero and the last control low register
-	 * has to have LLP_SRC_EN and LLP_DST_EN (linked list pointer source
-	 * and destination enable) set back to 0 (disabled.) This is what tells
-	 * the core that this is the last item in the linked list.
+	 * Each DMA command produces 2 interrupts.  Only
+	 * complete the command after both interrupts have been
+	 * seen. (See sata_dwc_isr())
 	 */
-	if (idx) {
-		lli[idx-1].llp = 0x00000000;
-		lli[idx-1].ctl.low &= DMA_CTL_LLP_DISABLE_LE32;
+	hsdevp->dma_interrupt_count++;
+	sata_dwc_clear_dmacr(hsdevp, tag);
 
-		/* Flush cache to memory */
-		dma_cache_sync(NULL, lli, (sizeof(struct lli) * idx),
-			       DMA_BIDIRECTIONAL);
+	if (hsdevp->dma_pending[tag] == SATA_DWC_DMA_PENDING_NONE) {
+		dev_err(ap->dev, "DMA not pending tag=0x%02x pending=%d\n",
+			tag, hsdevp->dma_pending[tag]);
 	}
 
-	return idx;
-}
+	if ((hsdevp->dma_interrupt_count % 2) == 0)
+		sata_dwc_dma_xfer_complete(ap, 1);
 
-/*
- * Function: dma_dwc_xfer_start
- * arguments: Channel number
- * Return : None
- * Enables the DMA channel
- */
-static void dma_dwc_xfer_start(int dma_ch)
-{
-	/* Enable the DMA channel */
-	out_le32(&(host_pvt.sata_dma_regs->dma_chan_en.low),
-		 in_le32(&(host_pvt.sata_dma_regs->dma_chan_en.low)) |
-		 DMA_ENABLE_CHAN(dma_ch));
+	spin_unlock_irqrestore(&host->lock, flags);
 }
 
-static int dma_dwc_xfer_setup(struct scatterlist *sg, int num_elems,
-			      struct lli *lli, dma_addr_t dma_lli,
-			      void __iomem *addr, int dir)
+static struct dma_async_tx_descriptor *dma_dwc_xfer_setup(struct ata_queued_cmd *qc)
 {
-	int dma_ch;
-	int num_lli;
-	/* Acquire DMA channel */
-	dma_ch = dma_request_channel();
-	if (dma_ch == -1) {
-		dev_err(host_pvt.dwc_dev, "%s: dma channel unavailable\n",
-			 __func__);
-		return -EAGAIN;
+	struct ata_port *ap = qc->ap;
+	struct sata_dwc_device_port *hsdevp = HSDEVP_FROM_AP(ap);
+	struct sata_dwc_device *hsdev = HSDEV_FROM_AP(ap);
+	dma_addr_t addr = (dma_addr_t)&hsdev->sata_dwc_regs->dmadr;
+	struct dma_slave_config sconf;
+	struct dma_async_tx_descriptor *desc;
+
+	if (qc->dma_dir == DMA_DEV_TO_MEM) {
+		sconf.src_addr = addr;
+		sconf.device_fc = true;
+	} else {	/* DMA_MEM_TO_DEV */
+		sconf.dst_addr = addr;
+		sconf.device_fc = false;
 	}
 
-	/* Convert SG list to linked list of items (LLIs) for AHB DMA */
-	num_lli = map_sg_to_lli(sg, num_elems, lli, dma_lli, addr, dir);
-
-	dev_dbg(host_pvt.dwc_dev, "%s sg: 0x%p, count: %d lli: %p dma_lli:"
-		" 0x%0xlx addr: %p lli count: %d\n", __func__, sg, num_elems,
-		 lli, (u32)dma_lli, addr, num_lli);
-
-	clear_chan_interrupts(dma_ch);
+	sconf.direction = qc->dma_dir;
+	sconf.src_maxburst = AHB_DMA_BRST_DFLT;
+	sconf.dst_maxburst = AHB_DMA_BRST_DFLT;
+	sconf.src_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
+	sconf.dst_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
 
-	/* Program the CFG register. */
-	out_le32(&(host_pvt.sata_dma_regs->chan_regs[dma_ch].cfg.high),
-		 DMA_CFG_HW_HS_SRC(dma_ch) | DMA_CFG_HW_HS_DEST(dma_ch) |
-		 DMA_CFG_PROTCTL | DMA_CFG_FCMOD_REQ);
-	out_le32(&(host_pvt.sata_dma_regs->chan_regs[dma_ch].cfg.low),
-		 DMA_CFG_HW_CH_PRIOR(dma_ch));
+	dmaengine_slave_config(hsdevp->chan, &sconf);
 
-	/* Program the address of the linked list */
-	out_le32(&(host_pvt.sata_dma_regs->chan_regs[dma_ch].llp.low),
-		 DMA_LLP_LMS(dma_lli, DMA_LLP_AHBMASTER2));
-
-	/* Program the CTL register with src enable / dst enable */
-	out_le32(&(host_pvt.sata_dma_regs->chan_regs[dma_ch].ctl.low),
-		 DMA_CTL_LLP_SRCEN | DMA_CTL_LLP_DSTEN);
-	return dma_ch;
-}
-
-/*
- * Function: dma_dwc_exit
- * arguments: None
- * returns status
- * This function exits the SATA DMA driver
- */
-static void dma_dwc_exit(struct sata_dwc_device *hsdev)
-{
-	dev_dbg(host_pvt.dwc_dev, "%s:\n", __func__);
-	if (host_pvt.sata_dma_regs) {
-		iounmap((void __iomem *)host_pvt.sata_dma_regs);
-		host_pvt.sata_dma_regs = NULL;
-	}
-
-	if (hsdev->irq_dma) {
-		free_irq(hsdev->irq_dma, hsdev);
-		hsdev->irq_dma = 0;
-	}
-}
-
-/*
- * Function: dma_dwc_init
- * arguments: hsdev
- * returns status
- * This function initializes the SATA DMA driver
- */
-static int dma_dwc_init(struct sata_dwc_device *hsdev, int irq)
-{
-	int err;
+	/* Convert SG list to linked list of items (LLIs) for AHB DMA */
+	desc = dmaengine_prep_slave_sg(hsdevp->chan, qc->sg, qc->n_elem,
+				       qc->dma_dir,
+				       DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
 
-	err = dma_request_interrupts(hsdev, irq);
-	if (err) {
-		dev_err(host_pvt.dwc_dev, "%s: dma_request_interrupts returns"
-			" %d\n", __func__, err);
-		return err;
-	}
+	if (!desc)
+		return NULL;
 
-	/* Enabe DMA */
-	out_le32(&(host_pvt.sata_dma_regs->dma_cfg.low), DMA_EN);
+	desc->callback = dma_dwc_xfer_done;
+	desc->callback_param = hsdev;
 
-	dev_notice(host_pvt.dwc_dev, "DMA initialized\n");
-	dev_dbg(host_pvt.dwc_dev, "SATA DMA registers=0x%p\n", host_pvt.\
-		sata_dma_regs);
+	dev_dbg(hsdev->dev, "%s sg: 0x%p, count: %d addr: %pad\n",
+		__func__, qc->sg, qc->n_elem, &addr);
 
-	return 0;
+	return desc;
 }
 
 static int sata_dwc_scr_read(struct ata_link *link, unsigned int scr, u32 *val)
@@ -891,21 +409,18 @@ static void sata_dwc_error_intr(struct ata_port *ap,
 	struct ata_queued_cmd *qc;
 	u32 serror;
 	u8 status, tag;
-	u32 err_reg;
 
 	ata_ehi_clear_desc(ehi);
 
 	serror = core_scr_read(SCR_ERROR);
 	status = ap->ops->sff_check_status(ap);
 
-	err_reg = in_le32(&(host_pvt.sata_dma_regs->interrupt_status.error.\
-			low));
 	tag = ap->link.active_tag;
 
-	dev_err(ap->dev, "%s SCR_ERROR=0x%08x intpr=0x%08x status=0x%08x "
-		"dma_intp=%d pending=%d issued=%d dma_err_status=0x%08x\n",
-		__func__, serror, intpr, status, host_pvt.dma_interrupt_count,
-		hsdevp->dma_pending[tag], hsdevp->cmd_issued[tag], err_reg);
+	dev_err(ap->dev,
+		"%s SCR_ERROR=0x%08x intpr=0x%08x status=0x%08x dma_intp=%d pending=%d issued=%d",
+		__func__, serror, intpr, status, hsdevp->dma_interrupt_count,
+		hsdevp->dma_pending[tag], hsdevp->cmd_issued[tag]);
 
 	/* Clear error register and interrupt bit */
 	clear_serror();
@@ -1003,8 +518,9 @@ static irqreturn_t sata_dwc_isr(int irq, void *dev_instance)
 
 		/* DEV interrupt w/ no active qc? */
 		if (unlikely(!qc || (qc->tf.flags & ATA_TFLAG_POLLING))) {
-			dev_err(ap->dev, "%s interrupt with no active qc "
-				"qc=%p\n", __func__, qc);
+			dev_err(ap->dev,
+				"%s interrupt with no active qc qc=%p\n",
+				__func__, qc);
 			ap->ops->sff_check_status(ap);
 			handled = 1;
 			goto DONE;
@@ -1031,16 +547,16 @@ DRVSTILLBUSY:
 			 * operation done interrupt. The command should be
 			 * completed only after both interrupts are seen.
 			 */
-			host_pvt.dma_interrupt_count++;
+			hsdevp->dma_interrupt_count++;
 			if (hsdevp->dma_pending[tag] == \
 					SATA_DWC_DMA_PENDING_NONE) {
-				dev_err(ap->dev, "%s: DMA not pending "
-					"intpr=0x%08x status=0x%08x pending"
-					"=%d\n", __func__, intpr, status,
+				dev_err(ap->dev,
+					"%s: DMA not pending intpr=0x%08x status=0x%08x pending=%d\n",
+					__func__, intpr, status,
 					hsdevp->dma_pending[tag]);
 			}
 
-			if ((host_pvt.dma_interrupt_count % 2) == 0)
+			if ((hsdevp->dma_interrupt_count % 2) == 0)
 				sata_dwc_dma_xfer_complete(ap, 1);
 		} else if (ata_is_pio(qc->tf.protocol)) {
 			ata_sff_hsm_move(ap, qc, status, 0);
@@ -1068,17 +584,17 @@ DRVSTILLBUSY:
 
 	if (sactive != 0 || (host_pvt.sata_dwc_sactive_issued) > 1 || \
 							tag_mask > 1) {
-		dev_dbg(ap->dev, "%s NCQ:sactive=0x%08x  sactive_issued=0x%08x"
-			"tag_mask=0x%08x\n", __func__, sactive,
-			host_pvt.sata_dwc_sactive_issued, tag_mask);
+		dev_dbg(ap->dev,
+			"%s NCQ:sactive=0x%08x  sactive_issued=0x%08x tag_mask=0x%08x\n",
+			__func__, sactive, host_pvt.sata_dwc_sactive_issued,
+			tag_mask);
 	}
 
 	if ((tag_mask | (host_pvt.sata_dwc_sactive_issued)) != \
 					(host_pvt.sata_dwc_sactive_issued)) {
-		dev_warn(ap->dev, "Bad tag mask?  sactive=0x%08x "
-			 "(host_pvt.sata_dwc_sactive_issued)=0x%08x  tag_mask"
-			 "=0x%08x\n", sactive, host_pvt.sata_dwc_sactive_issued,
-			  tag_mask);
+		dev_warn(ap->dev,
+			 "Bad tag mask?  sactive=0x%08x (host_pvt.sata_dwc_sactive_issued)=0x%08x  tag_mask=0x%08x\n",
+			 sactive, host_pvt.sata_dwc_sactive_issued, tag_mask);
 	}
 
 	/* read just to clear ... not bad if currently still busy */
@@ -1114,12 +630,12 @@ DRVSTILLBUSY:
 		dev_dbg(ap->dev, "%s NCQ command, protocol: %s\n", __func__,
 			get_prot_descript(qc->tf.protocol));
 		if (ata_is_dma(qc->tf.protocol)) {
-			host_pvt.dma_interrupt_count++;
+			hsdevp->dma_interrupt_count++;
 			if (hsdevp->dma_pending[tag] == \
 					SATA_DWC_DMA_PENDING_NONE)
 				dev_warn(ap->dev, "%s: DMA not pending?\n",
 					__func__);
-			if ((host_pvt.dma_interrupt_count % 2) == 0)
+			if ((hsdevp->dma_interrupt_count % 2) == 0)
 				sata_dwc_dma_xfer_complete(ap, 1);
 		} else {
 			if (unlikely(sata_dwc_qc_complete(ap, qc, 1)))
@@ -1142,8 +658,9 @@ STILLBUSY:
 	 */
 	sactive2 = core_scr_read(SCR_ACTIVE);
 	if (sactive2 != sactive) {
-		dev_dbg(ap->dev, "More completed - sactive=0x%x sactive2"
-			"=0x%x\n", sactive, sactive2);
+		dev_dbg(ap->dev,
+			"More completed - sactive=0x%x sactive2=0x%x\n",
+			sactive, sactive2);
 	}
 	handled = 1;
 
@@ -1169,11 +686,10 @@ static void sata_dwc_clear_dmacr(struct sata_dwc_device_port *hsdevp, u8 tag)
 		 * This should not happen, it indicates the driver is out of
 		 * sync.  If it does happen, clear dmacr anyway.
 		 */
-		dev_err(host_pvt.dwc_dev, "%s DMA protocol RX and"
-			"TX DMA not pending tag=0x%02x pending=%d"
-			" dmacr: 0x%08x\n", __func__, tag,
-			hsdevp->dma_pending[tag],
-			in_le32(&(hsdev->sata_dwc_regs->dmacr)));
+		dev_err(hsdev->dev,
+			"%s DMA protocol RX and TX DMA not pending tag=0x%02x pending=%d dmacr: 0x%08x\n",
+			__func__, tag, hsdevp->dma_pending[tag],
+			in_le32(&hsdev->sata_dwc_regs->dmacr));
 		out_le32(&(hsdev->sata_dwc_regs->dmacr),
 			SATA_DWC_DMACR_TXRXCH_CLEAR);
 	}
@@ -1195,8 +711,9 @@ static void sata_dwc_dma_xfer_complete(struct ata_port *ap, u32 check_status)
 
 #ifdef DEBUG_NCQ
 	if (tag > 0) {
-		dev_info(ap->dev, "%s tag=%u cmd=0x%02x dma dir=%s proto=%s "
-			 "dmacr=0x%08x\n", __func__, qc->tag, qc->tf.command,
+		dev_info(ap->dev,
+			 "%s tag=%u cmd=0x%02x dma dir=%s proto=%s dmacr=0x%08x\n",
+			 __func__, qc->tag, qc->tf.command,
 			 get_dma_dir_descript(qc->dma_dir),
 			 get_prot_descript(qc->tf.protocol),
 			 in_le32(&(hsdev->sata_dwc_regs->dmacr)));
@@ -1205,8 +722,9 @@ static void sata_dwc_dma_xfer_complete(struct ata_port *ap, u32 check_status)
 
 	if (ata_is_dma(qc->tf.protocol)) {
 		if (hsdevp->dma_pending[tag] == SATA_DWC_DMA_PENDING_NONE) {
-			dev_err(ap->dev, "%s DMA protocol RX and TX DMA not "
-				"pending dmacr: 0x%08x\n", __func__,
+			dev_err(ap->dev,
+				"%s DMA protocol RX and TX DMA not pending dmacr: 0x%08x\n",
+				__func__,
 				in_le32(&(hsdev->sata_dwc_regs->dmacr)));
 		}
 
@@ -1232,9 +750,9 @@ static int sata_dwc_qc_complete(struct ata_port *ap, struct ata_queued_cmd *qc,
 		dev_err(ap->dev, "TX DMA PENDING\n");
 	else if (hsdevp->dma_pending[tag] == SATA_DWC_DMA_PENDING_RX)
 		dev_err(ap->dev, "RX DMA PENDING\n");
-	dev_dbg(ap->dev, "QC complete cmd=0x%02x status=0x%02x ata%u:"
-		" protocol=%d\n", qc->tf.command, status, ap->print_id,
-		 qc->tf.protocol);
+	dev_dbg(ap->dev,
+		"QC complete cmd=0x%02x status=0x%02x ata%u: protocol=%d\n",
+		qc->tf.command, status, ap->print_id, qc->tf.protocol);
 
 	/* clear active bit */
 	mask = (~(qcmd_tag_to_mask(tag)));
@@ -1260,11 +778,23 @@ static void sata_dwc_enable_interrupts(struct sata_dwc_device *hsdev)
 	 */
 	out_le32(&hsdev->sata_dwc_regs->errmr, SATA_DWC_SERROR_ERR_BITS);
 
-	dev_dbg(host_pvt.dwc_dev, "%s: INTMR = 0x%08x, ERRMR = 0x%08x\n",
+	dev_dbg(hsdev->dev, "%s: INTMR = 0x%08x, ERRMR = 0x%08x\n",
 		 __func__, in_le32(&hsdev->sata_dwc_regs->intmr),
 		in_le32(&hsdev->sata_dwc_regs->errmr));
 }
 
+static bool sata_dwc_dma_filter(struct dma_chan *chan, void *param)
+{
+	struct sata_dwc_device_port *hsdevp = param;
+	struct dw_dma_slave *dws = hsdevp->dws;
+
+	if (dws->dma_dev != chan->device->dev)
+		return false;
+
+	chan->private = dws;
+	return true;
+}
+
 static void sata_dwc_setup_port(struct ata_ioports *port, unsigned long base)
 {
 	port->cmd_addr = (void __iomem *)base + 0x00;
@@ -1299,6 +829,7 @@ static int sata_dwc_port_start(struct ata_port *ap)
 	struct sata_dwc_device *hsdev;
 	struct sata_dwc_device_port *hsdevp = NULL;
 	struct device *pdev;
+	dma_cap_mask_t mask;
 	int i;
 
 	hsdev = HSDEV_FROM_AP(ap);
@@ -1322,29 +853,27 @@ static int sata_dwc_port_start(struct ata_port *ap)
 	}
 	hsdevp->hsdev = hsdev;
 
+	hsdevp->dws = &sata_dwc_dma_dws;
+	hsdevp->dws->dma_dev = hsdev->dev;
+
+	dma_cap_zero(mask);
+	dma_cap_set(DMA_SLAVE, mask);
+
+	/* Acquire DMA channel */
+	hsdevp->chan = dma_request_channel(mask, sata_dwc_dma_filter, hsdevp);
+	if (!hsdevp->chan) {
+		dev_err(hsdev->dev, "%s: dma channel unavailable\n",
+			 __func__);
+		err = -EAGAIN;
+		goto CLEANUP_ALLOC;
+	}
+
 	for (i = 0; i < SATA_DWC_QCMD_MAX; i++)
 		hsdevp->cmd_issued[i] = SATA_DWC_CMD_ISSUED_NOT;
 
 	ap->bmdma_prd = NULL;	/* set these so libata doesn't use them */
 	ap->bmdma_prd_dma = 0;
 
-	/*
-	 * DMA - Assign scatter gather LLI table. We can't use the libata
-	 * version since it's PRD is IDE PCI specific.
-	 */
-	for (i = 0; i < SATA_DWC_QCMD_MAX; i++) {
-		hsdevp->llit[i] = dma_alloc_coherent(pdev,
-						     SATA_DWC_DMAC_LLI_TBL_SZ,
-						     &(hsdevp->llit_dma[i]),
-						     GFP_ATOMIC);
-		if (!hsdevp->llit[i]) {
-			dev_err(ap->dev, "%s: dma_alloc_coherent failed\n",
-				 __func__);
-			err = -ENOMEM;
-			goto CLEANUP_ALLOC;
-		}
-	}
-
 	if (ap->port_no == 0)  {
 		dev_dbg(ap->dev, "%s: clearing TXCHEN, RXCHEN in DMAC\n",
 			__func__);
@@ -1373,22 +902,14 @@ CLEANUP:
 
 static void sata_dwc_port_stop(struct ata_port *ap)
 {
-	int i;
-	struct sata_dwc_device *hsdev = HSDEV_FROM_AP(ap);
 	struct sata_dwc_device_port *hsdevp = HSDEVP_FROM_AP(ap);
 
 	dev_dbg(ap->dev, "%s: ap->id = %d\n", __func__, ap->print_id);
 
-	if (hsdevp && hsdev) {
-		/* deallocate LLI table */
-		for (i = 0; i < SATA_DWC_QCMD_MAX; i++) {
-			dma_free_coherent(ap->host->dev,
-					  SATA_DWC_DMAC_LLI_TBL_SZ,
-					 hsdevp->llit[i], hsdevp->llit_dma[i]);
-		}
+	dmaengine_terminate_all(hsdevp->chan);
+	dma_release_channel(hsdevp->chan);
 
-		kfree(hsdevp);
-	}
+	kfree(hsdevp);
 	ap->private_data = NULL;
 }
 
@@ -1444,12 +965,12 @@ static void sata_dwc_bmdma_setup(struct ata_queued_cmd *qc)
 static void sata_dwc_bmdma_start_by_tag(struct ata_queued_cmd *qc, u8 tag)
 {
 	int start_dma;
-	u32 reg, dma_chan;
+	u32 reg;
 	struct sata_dwc_device *hsdev = HSDEV_FROM_QC(qc);
 	struct ata_port *ap = qc->ap;
 	struct sata_dwc_device_port *hsdevp = HSDEVP_FROM_AP(ap);
+	struct dma_async_tx_descriptor *desc = hsdevp->desc[tag];
 	int dir = qc->dma_dir;
-	dma_chan = hsdevp->dma_chan[tag];
 
 	if (hsdevp->cmd_issued[tag] != SATA_DWC_CMD_ISSUED_NOT) {
 		start_dma = 1;
@@ -1458,16 +979,17 @@ static void sata_dwc_bmdma_start_by_tag(struct ata_queued_cmd *qc, u8 tag)
 		else
 			hsdevp->dma_pending[tag] = SATA_DWC_DMA_PENDING_RX;
 	} else {
-		dev_err(ap->dev, "%s: Command not pending cmd_issued=%d "
-			"(tag=%d) DMA NOT started\n", __func__,
-			hsdevp->cmd_issued[tag], tag);
+		dev_err(ap->dev,
+			"%s: Command not pending cmd_issued=%d (tag=%d) DMA NOT started\n",
+			__func__, hsdevp->cmd_issued[tag], tag);
 		start_dma = 0;
 	}
 
-	dev_dbg(ap->dev, "%s qc=%p tag: %x cmd: 0x%02x dma_dir: %s "
-		"start_dma? %x\n", __func__, qc, tag, qc->tf.command,
+	dev_dbg(ap->dev,
+		"%s qc=%p tag: %x cmd: 0x%02x dma_dir: %s start_dma? %x\n",
+		__func__, qc, tag, qc->tf.command,
 		get_dma_dir_descript(qc->dma_dir), start_dma);
-	sata_dwc_tf_dump(&(qc->tf));
+	sata_dwc_tf_dump(ap, &qc->tf);
 
 	if (start_dma) {
 		reg = core_scr_read(SCR_ERROR);
@@ -1484,7 +1006,8 @@ static void sata_dwc_bmdma_start_by_tag(struct ata_queued_cmd *qc, u8 tag)
 				SATA_DWC_DMACR_RXCHEN);
 
 		/* Enable AHB DMA transfer on the specified channel */
-		dma_dwc_xfer_start(dma_chan);
+		dmaengine_submit(desc);
+		dma_async_issue_pending(hsdevp->chan);
 	}
 }
 
@@ -1510,26 +1033,21 @@ static void sata_dwc_bmdma_start(struct ata_queued_cmd *qc)
  */
 static void sata_dwc_qc_prep_by_tag(struct ata_queued_cmd *qc, u8 tag)
 {
-	struct scatterlist *sg = qc->sg;
+	struct dma_async_tx_descriptor *desc;
 	struct ata_port *ap = qc->ap;
-	int dma_chan;
-	struct sata_dwc_device *hsdev = HSDEV_FROM_AP(ap);
 	struct sata_dwc_device_port *hsdevp = HSDEVP_FROM_AP(ap);
 
 	dev_dbg(ap->dev, "%s: port=%d dma dir=%s n_elem=%d\n",
 		__func__, ap->port_no, get_dma_dir_descript(qc->dma_dir),
 		 qc->n_elem);
 
-	dma_chan = dma_dwc_xfer_setup(sg, qc->n_elem, hsdevp->llit[tag],
-				      hsdevp->llit_dma[tag],
-				      (void __iomem *)&hsdev->sata_dwc_regs->dmadr,
-				      qc->dma_dir);
-	if (dma_chan < 0) {
-		dev_err(ap->dev, "%s: dma_dwc_xfer_setup returns err %d\n",
-			__func__, dma_chan);
+	desc = dma_dwc_xfer_setup(qc);
+	if (!desc) {
+		dev_err(ap->dev, "%s: dma_dwc_xfer_setup returns NULL\n",
+			__func__);
 		return;
 	}
-	hsdevp->dma_chan[tag] = dma_chan;
+	hsdevp->desc[tag] = desc;
 }
 
 static unsigned int sata_dwc_qc_issue(struct ata_queued_cmd *qc)
@@ -1540,8 +1058,8 @@ static unsigned int sata_dwc_qc_issue(struct ata_queued_cmd *qc)
 
 #ifdef DEBUG_NCQ
 	if (qc->tag > 0 || ap->link.sactive > 1)
-		dev_info(ap->dev, "%s ap id=%d cmd(0x%02x)=%s qc tag=%d "
-			 "prot=%s ap active_tag=0x%08x ap sactive=0x%08x\n",
+		dev_info(ap->dev,
+			 "%s ap id=%d cmd(0x%02x)=%s qc tag=%d prot=%s ap active_tag=0x%08x ap sactive=0x%08x\n",
 			 __func__, ap->print_id, qc->tf.command,
 			 ata_get_cmd_descript(qc->tf.command),
 			 qc->tag, get_prot_descript(qc->tf.protocol),
@@ -1557,9 +1075,9 @@ static unsigned int sata_dwc_qc_issue(struct ata_queued_cmd *qc)
 		sactive |= (0x00000001 << tag);
 		core_scr_write(SCR_ACTIVE, sactive);
 
-		dev_dbg(qc->ap->dev, "%s: tag=%d ap->link.sactive = 0x%08x "
-			"sactive=0x%08x\n", __func__, tag, qc->ap->link.sactive,
-			sactive);
+		dev_dbg(qc->ap->dev,
+			"%s: tag=%d ap->link.sactive = 0x%08x sactive=0x%08x\n",
+			__func__, tag, qc->ap->link.sactive, sactive);
 
 		ap->ops->sff_tf_load(ap, &qc->tf);
 		sata_dwc_exec_command_by_tag(ap, &qc->tf, qc->tag,
@@ -1673,7 +1191,6 @@ static int sata_dwc_probe(struct platform_device *ofdev)
 	struct ata_port_info pi = sata_dwc_port_info[0];
 	const struct ata_port_info *ppi[] = { &pi, NULL };
 	struct device_node *np = ofdev->dev.of_node;
-	u32 dma_chan;
 
 	/* Allocate DWC SATA device */
 	host = ata_host_alloc_pinfo(&ofdev->dev, ppi, SATA_DWC_MAX_PORTS);
@@ -1683,18 +1200,11 @@ static int sata_dwc_probe(struct platform_device *ofdev)
 
 	host->private_data = hsdev;
 
-	if (of_property_read_u32(np, "dma-channel", &dma_chan)) {
-		dev_warn(&ofdev->dev, "no dma-channel property set."
-			 " Use channel 0\n");
-		dma_chan = 0;
-	}
-	host_pvt.dma_channel = dma_chan;
-
 	/* Ioremap SATA registers */
 	base = of_iomap(np, 0);
 	if (!base) {
-		dev_err(&ofdev->dev, "ioremap failed for SATA register"
-			" address\n");
+		dev_err(&ofdev->dev,
+			"ioremap failed for SATA register address\n");
 		return -ENODEV;
 	}
 	hsdev->reg_base = base;
@@ -1716,27 +1226,29 @@ static int sata_dwc_probe(struct platform_device *ofdev)
 		   idr, ver[0], ver[1], ver[2]);
 
 	/* Get SATA DMA interrupt number */
-	irq = irq_of_parse_and_map(np, 1);
-	if (irq == NO_IRQ) {
+	hsdev->dma->irq = irq_of_parse_and_map(np, 1);
+	if (hsdev->dma->irq == NO_IRQ) {
 		dev_err(&ofdev->dev, "no SATA DMA irq\n");
 		err = -ENODEV;
 		goto error_iomap;
 	}
 
 	/* Get physical SATA DMA register base address */
-	host_pvt.sata_dma_regs = (void *)of_iomap(np, 1);
-	if (!(host_pvt.sata_dma_regs)) {
-		dev_err(&ofdev->dev, "ioremap failed for AHBDMA register"
-			" address\n");
+	hsdev->dma->regs = of_iomap(np, 1);
+	if (!hsdev->dma->regs) {
+		dev_err(&ofdev->dev,
+			"ioremap failed for AHBDMA register address\n");
 		err = -ENODEV;
 		goto error_iomap;
 	}
 
 	/* Save dev for later use in dev_xxx() routines */
-	host_pvt.dwc_dev = &ofdev->dev;
+	hsdev->dev = &ofdev->dev;
+
+	hsdev->dma->dev = &ofdev->dev;
 
 	/* Initialize AHB DMAC */
-	err = dma_dwc_init(hsdev, irq);
+	err = dw_dma_probe(hsdev->dma, NULL);
 	if (err)
 		goto error_dma_iomap;
 
@@ -1765,9 +1277,9 @@ static int sata_dwc_probe(struct platform_device *ofdev)
 
 error_out:
 	/* Free SATA DMA resources */
-	dma_dwc_exit(hsdev);
+	dw_dma_remove(hsdev->dma);
 error_dma_iomap:
-	iounmap((void __iomem *)host_pvt.sata_dma_regs);
+	iounmap(hsdev->dma->regs);
 error_iomap:
 	iounmap(base);
 	return err;
@@ -1782,9 +1294,9 @@ static int sata_dwc_remove(struct platform_device *ofdev)
 	ata_host_detach(host);
 
 	/* Free SATA DMA resources */
-	dma_dwc_exit(hsdev);
+	dw_dma_remove(hsdev->dma);
 
-	iounmap((void __iomem *)host_pvt.sata_dma_regs);
+	iounmap(hsdev->dma->regs);
 	iounmap(hsdev->reg_base);
 	dev_dbg(&ofdev->dev, "done\n");
 	return 0;
@@ -1809,5 +1321,5 @@ module_platform_driver(sata_dwc_driver);
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Mark Miesfeld <mmiesfeld@amcc.com>");
-MODULE_DESCRIPTION("DesignWare Cores SATA controller low lever driver");
+MODULE_DESCRIPTION("DesignWare Cores SATA controller low level driver");
 MODULE_VERSION(DRV_VERSION);
diff --git a/drivers/ata/sata_fsl.c b/drivers/ata/sata_fsl.c
index f9054cd..5389579 100644
--- a/drivers/ata/sata_fsl.c
+++ b/drivers/ata/sata_fsl.c
@@ -869,6 +869,8 @@ try_offline_again:
 	 */
 	ata_msleep(ap, 1);
 
+	sata_set_spd(link);
+
 	/*
 	 * Now, bring the host controller online again, this can take time
 	 * as PHY reset and communication establishment, 1st D2H FIS and
diff --git a/drivers/ata/sata_inic162x.c b/drivers/ata/sata_inic162x.c
index 0698278..e81a821 100644
--- a/drivers/ata/sata_inic162x.c
+++ b/drivers/ata/sata_inic162x.c
@@ -856,13 +856,13 @@ static int inic_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 	}
 
 	/* Set dma_mask.  This devices doesn't support 64bit addressing. */
-	rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
+	rc = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
 	if (rc) {
 		dev_err(&pdev->dev, "32-bit DMA enable failed\n");
 		return rc;
 	}
 
-	rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
+	rc = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
 	if (rc) {
 		dev_err(&pdev->dev, "32-bit consistent DMA enable failed\n");
 		return rc;
diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c
index f8c33e3..bd74ee5 100644
--- a/drivers/ata/sata_mv.c
+++ b/drivers/ata/sata_mv.c
@@ -306,6 +306,11 @@ enum {
 	MV5_PHY_CTL		= 0x0C,
 	SATA_IFCFG		= 0x050,
 	LP_PHY_CTL		= 0x058,
+	LP_PHY_CTL_PIN_PU_PLL   = (1 << 0),
+	LP_PHY_CTL_PIN_PU_RX    = (1 << 1),
+	LP_PHY_CTL_PIN_PU_TX    = (1 << 2),
+	LP_PHY_CTL_GEN_TX_3G    = (1 << 5),
+	LP_PHY_CTL_GEN_RX_3G    = (1 << 9),
 
 	MV_M2_PREAMP_MASK	= 0x7e0,
 
@@ -1391,10 +1396,17 @@ static int mv_scr_write(struct ata_link *link, unsigned int sc_reg_in, u32 val)
 				/*
 				 * Set PHY speed according to SControl speed.
 				 */
-				if ((val & 0xf0) == 0x10)
-					writelfl(0x7, lp_phy_addr);
-				else
-					writelfl(0x227, lp_phy_addr);
+				u32 lp_phy_val =
+					LP_PHY_CTL_PIN_PU_PLL |
+					LP_PHY_CTL_PIN_PU_RX  |
+					LP_PHY_CTL_PIN_PU_TX;
+
+				if ((val & 0xf0) != 0x10)
+					lp_phy_val |=
+						LP_PHY_CTL_GEN_TX_3G |
+						LP_PHY_CTL_GEN_RX_3G;
+
+				writelfl(lp_phy_val, lp_phy_addr);
 			}
 		}
 		writelfl(val, addr);
@@ -4308,10 +4320,10 @@ static int pci_go_64(struct pci_dev *pdev)
 {
 	int rc;
 
-	if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) {
-		rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
+	if (!dma_set_mask(&pdev->dev, DMA_BIT_MASK(64))) {
+		rc = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64));
 		if (rc) {
-			rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
+			rc = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
 			if (rc) {
 				dev_err(&pdev->dev,
 					"64-bit DMA enable failed\n");
@@ -4319,12 +4331,12 @@ static int pci_go_64(struct pci_dev *pdev)
 			}
 		}
 	} else {
-		rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
+		rc = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
 		if (rc) {
 			dev_err(&pdev->dev, "32-bit DMA enable failed\n");
 			return rc;
 		}
-		rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
+		rc = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
 		if (rc) {
 			dev_err(&pdev->dev,
 				"32-bit consistent DMA enable failed\n");
diff --git a/drivers/ata/sata_nv.c b/drivers/ata/sata_nv.c
index 1db6f5c..7ece85f 100644
--- a/drivers/ata/sata_nv.c
+++ b/drivers/ata/sata_nv.c
@@ -756,10 +756,10 @@ static int nv_adma_slave_config(struct scsi_device *sdev)
 			blk_queue_bounce_limit(sdev1->request_queue,
 					       ATA_DMA_MASK);
 
-		pci_set_dma_mask(pdev, ATA_DMA_MASK);
+		dma_set_mask(&pdev->dev, ATA_DMA_MASK);
 	} else {
 		/** This shouldn't fail as it was set to this value before */
-		pci_set_dma_mask(pdev, pp->adma_dma_mask);
+		dma_set_mask(&pdev->dev, pp->adma_dma_mask);
 		if (sdev0)
 			blk_queue_bounce_limit(sdev0->request_queue,
 					       pp->adma_dma_mask);
@@ -1133,10 +1133,10 @@ static int nv_adma_port_start(struct ata_port *ap)
 
 	/* Ensure DMA mask is set to 32-bit before allocating legacy PRD and
 	   pad buffers */
-	rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
+	rc = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
 	if (rc)
 		return rc;
-	rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
+	rc = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
 	if (rc)
 		return rc;
 
@@ -1161,8 +1161,8 @@ static int nv_adma_port_start(struct ata_port *ap)
 	   These are allowed to fail since we store the value that ends up
 	   being used to set as the bounce limit in slave_config later if
 	   needed. */
-	pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
-	pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
+	dma_set_mask(&pdev->dev, DMA_BIT_MASK(64));
+	dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64));
 	pp->adma_dma_mask = *dev->dma_mask;
 
 	mem = dmam_alloc_coherent(dev, NV_ADMA_PORT_PRIV_DMA_SZ,
diff --git a/drivers/ata/sata_promise.c b/drivers/ata/sata_promise.c
index 3638887..0fa211e 100644
--- a/drivers/ata/sata_promise.c
+++ b/drivers/ata/sata_promise.c
@@ -1246,10 +1246,10 @@ static int pdc_ata_init_one(struct pci_dev *pdev,
 	/* initialize adapter */
 	pdc_host_init(host);
 
-	rc = pci_set_dma_mask(pdev, ATA_DMA_MASK);
+	rc = dma_set_mask(&pdev->dev, ATA_DMA_MASK);
 	if (rc)
 		return rc;
-	rc = pci_set_consistent_dma_mask(pdev, ATA_DMA_MASK);
+	rc = dma_set_coherent_mask(&pdev->dev, ATA_DMA_MASK);
 	if (rc)
 		return rc;
 
diff --git a/drivers/ata/sata_qstor.c b/drivers/ata/sata_qstor.c
index 9a6bd4c..af987a4 100644
--- a/drivers/ata/sata_qstor.c
+++ b/drivers/ata/sata_qstor.c
@@ -557,10 +557,10 @@ static int qs_set_dma_masks(struct pci_dev *pdev, void __iomem *mmio_base)
 	int rc, have_64bit_bus = (bus_info & QS_HPHY_64BIT);
 
 	if (have_64bit_bus &&
-	    !pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) {
-		rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
+	    !dma_set_mask(&pdev->dev, DMA_BIT_MASK(64))) {
+		rc = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64));
 		if (rc) {
-			rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
+			rc = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
 			if (rc) {
 				dev_err(&pdev->dev,
 					"64-bit DMA enable failed\n");
@@ -568,12 +568,12 @@ static int qs_set_dma_masks(struct pci_dev *pdev, void __iomem *mmio_base)
 			}
 		}
 	} else {
-		rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
+		rc = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
 		if (rc) {
 			dev_err(&pdev->dev, "32-bit DMA enable failed\n");
 			return rc;
 		}
-		rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
+		rc = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
 		if (rc) {
 			dev_err(&pdev->dev,
 				"32-bit consistent DMA enable failed\n");
diff --git a/drivers/ata/sata_sil.c b/drivers/ata/sata_sil.c
index 40b76b2..dea6edcb 100644
--- a/drivers/ata/sata_sil.c
+++ b/drivers/ata/sata_sil.c
@@ -770,10 +770,10 @@ static int sil_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 		return rc;
 	host->iomap = pcim_iomap_table(pdev);
 
-	rc = pci_set_dma_mask(pdev, ATA_DMA_MASK);
+	rc = dma_set_mask(&pdev->dev, ATA_DMA_MASK);
 	if (rc)
 		return rc;
-	rc = pci_set_consistent_dma_mask(pdev, ATA_DMA_MASK);
+	rc = dma_set_coherent_mask(&pdev->dev, ATA_DMA_MASK);
 	if (rc)
 		return rc;
 
diff --git a/drivers/ata/sata_sil24.c b/drivers/ata/sata_sil24.c
index ba2667f..4b1995e 100644
--- a/drivers/ata/sata_sil24.c
+++ b/drivers/ata/sata_sil24.c
@@ -246,7 +246,7 @@ enum {
 	/* host flags */
 	SIL24_COMMON_FLAGS	= ATA_FLAG_SATA | ATA_FLAG_PIO_DMA |
 				  ATA_FLAG_NCQ | ATA_FLAG_ACPI_SATA |
-				  ATA_FLAG_AN | ATA_FLAG_PMP | ATA_FLAG_LOWTAG,
+				  ATA_FLAG_AN | ATA_FLAG_PMP,
 	SIL24_FLAG_PCIX_IRQ_WOC	= (1 << 24), /* IRQ loss errata on PCI-X */
 
 	IRQ_STAT_4PORTS		= 0xf,
@@ -1312,10 +1312,10 @@ static int sil24_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 	host->iomap = iomap;
 
 	/* configure and activate the device */
-	if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) {
-		rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
+	if (!dma_set_mask(&pdev->dev, DMA_BIT_MASK(64))) {
+		rc = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64));
 		if (rc) {
-			rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
+			rc = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
 			if (rc) {
 				dev_err(&pdev->dev,
 					"64-bit DMA enable failed\n");
@@ -1323,12 +1323,12 @@ static int sil24_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 			}
 		}
 	} else {
-		rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
+		rc = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
 		if (rc) {
 			dev_err(&pdev->dev, "32-bit DMA enable failed\n");
 			return rc;
 		}
-		rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
+		rc = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
 		if (rc) {
 			dev_err(&pdev->dev,
 				"32-bit consistent DMA enable failed\n");
diff --git a/drivers/ata/sata_svw.c b/drivers/ata/sata_svw.c
index c630fa8..ff8307b 100644
--- a/drivers/ata/sata_svw.c
+++ b/drivers/ata/sata_svw.c
@@ -496,10 +496,10 @@ static int k2_sata_init_one(struct pci_dev *pdev, const struct pci_device_id *en
 		ata_port_pbar_desc(ap, 5, offset, "port");
 	}
 
-	rc = pci_set_dma_mask(pdev, ATA_DMA_MASK);
+	rc = dma_set_mask(&pdev->dev, ATA_DMA_MASK);
 	if (rc)
 		return rc;
-	rc = pci_set_consistent_dma_mask(pdev, ATA_DMA_MASK);
+	rc = dma_set_coherent_mask(&pdev->dev, ATA_DMA_MASK);
 	if (rc)
 		return rc;
 
diff --git a/drivers/ata/sata_sx4.c b/drivers/ata/sata_sx4.c
index 39b5de6..3a18a8a 100644
--- a/drivers/ata/sata_sx4.c
+++ b/drivers/ata/sata_sx4.c
@@ -1476,10 +1476,10 @@ static int pdc_sata_init_one(struct pci_dev *pdev,
 	}
 
 	/* configure and activate */
-	rc = pci_set_dma_mask(pdev, ATA_DMA_MASK);
+	rc = dma_set_mask(&pdev->dev, ATA_DMA_MASK);
 	if (rc)
 		return rc;
-	rc = pci_set_consistent_dma_mask(pdev, ATA_DMA_MASK);
+	rc = dma_set_coherent_mask(&pdev->dev, ATA_DMA_MASK);
 	if (rc)
 		return rc;
 
diff --git a/drivers/ata/sata_via.c b/drivers/ata/sata_via.c
index 47bf894..17d31fc 100644
--- a/drivers/ata/sata_via.c
+++ b/drivers/ata/sata_via.c
@@ -502,10 +502,10 @@ static int vt6421_prepare_host(struct pci_dev *pdev, struct ata_host **r_host)
 	for (i = 0; i < host->n_ports; i++)
 		vt6421_init_addrs(host->ports[i]);
 
-	rc = pci_set_dma_mask(pdev, ATA_DMA_MASK);
+	rc = dma_set_mask(&pdev->dev, ATA_DMA_MASK);
 	if (rc)
 		return rc;
-	rc = pci_set_consistent_dma_mask(pdev, ATA_DMA_MASK);
+	rc = dma_set_coherent_mask(&pdev->dev, ATA_DMA_MASK);
 	if (rc)
 		return rc;
 
diff --git a/drivers/ata/sata_vsc.c b/drivers/ata/sata_vsc.c
index 29e847a..183eb52 100644
--- a/drivers/ata/sata_vsc.c
+++ b/drivers/ata/sata_vsc.c
@@ -387,10 +387,10 @@ static int vsc_sata_init_one(struct pci_dev *pdev,
 	/*
 	 * Use 32 bit DMA mask, because 64 bit address support is poor.
 	 */
-	rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
+	rc = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
 	if (rc)
 		return rc;
-	rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
+	rc = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
 	if (rc)
 		return rc;
 
diff --git a/drivers/base/attribute_container.c b/drivers/base/attribute_container.c
index 3ead3af..2ba4cac 100644
--- a/drivers/base/attribute_container.c
+++ b/drivers/base/attribute_container.c
@@ -94,6 +94,7 @@ int
 attribute_container_unregister(struct attribute_container *cont)
 {
 	int retval = -EBUSY;
+
 	mutex_lock(&attribute_container_mutex);
 	spin_lock(&cont->containers.k_lock);
 	if (!list_empty(&cont->containers.k_list))
@@ -349,6 +350,7 @@ int
 attribute_container_add_class_device(struct device *classdev)
 {
 	int error = device_add(classdev);
+
 	if (error)
 		return error;
 	return attribute_container_add_attrs(classdev);
diff --git a/drivers/base/bus.c b/drivers/base/bus.c
index 876bae5..79bc203 100644
--- a/drivers/base/bus.c
+++ b/drivers/base/bus.c
@@ -515,11 +515,11 @@ int bus_add_device(struct device *dev)
 			goto out_put;
 		error = device_add_groups(dev, bus->dev_groups);
 		if (error)
-			goto out_groups;
+			goto out_id;
 		error = sysfs_create_link(&bus->p->devices_kset->kobj,
 						&dev->kobj, dev_name(dev));
 		if (error)
-			goto out_id;
+			goto out_groups;
 		error = sysfs_create_link(&dev->kobj,
 				&dev->bus->p->subsys.kobj, "subsystem");
 		if (error)
diff --git a/drivers/base/cacheinfo.c b/drivers/base/cacheinfo.c
index 6e64563..9c2ba1c 100644
--- a/drivers/base/cacheinfo.c
+++ b/drivers/base/cacheinfo.c
@@ -62,15 +62,21 @@ static int cache_setup_of_node(unsigned int cpu)
 		return -ENOENT;
 	}
 
-	while (np && index < cache_leaves(cpu)) {
+	while (index < cache_leaves(cpu)) {
 		this_leaf = this_cpu_ci->info_list + index;
 		if (this_leaf->level != 1)
 			np = of_find_next_cache_node(np);
 		else
 			np = of_node_get(np);/* cpu node itself */
+		if (!np)
+			break;
 		this_leaf->of_node = np;
 		index++;
 	}
+
+	if (index != cache_leaves(cpu)) /* not all OF nodes populated */
+		return -ENOENT;
+
 	return 0;
 }
 
@@ -189,8 +195,11 @@ static int detect_cache_attributes(unsigned int cpu)
 	 * will be set up here only if they are not populated already
 	 */
 	ret = cache_shared_cpu_map_setup(cpu);
-	if (ret)
+	if (ret) {
+		pr_warn("Unable to detect cache hierarcy from DT for CPU %d\n",
+			cpu);
 		goto free_ci;
+	}
 	return 0;
 
 free_ci:
diff --git a/drivers/base/class.c b/drivers/base/class.c
index f96f704..6e81088 100644
--- a/drivers/base/class.c
+++ b/drivers/base/class.c
@@ -90,6 +90,7 @@ int class_create_file_ns(struct class *cls, const struct class_attribute *attr,
 			 const void *ns)
 {
 	int error;
+
 	if (cls)
 		error = sysfs_create_file_ns(&cls->p->subsys.kobj,
 					     &attr->attr, ns);
@@ -488,6 +489,7 @@ ssize_t show_class_attr_string(struct class *class,
 			       struct class_attribute *attr, char *buf)
 {
 	struct class_attribute_string *cs;
+
 	cs = container_of(attr, struct class_attribute_string, attr);
 	return snprintf(buf, PAGE_SIZE, "%s\n", cs->str);
 }
diff --git a/drivers/base/core.c b/drivers/base/core.c
index 07304a3..cadf165 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -805,8 +805,16 @@ static void cleanup_device_parent(struct device *dev)
 
 static int device_add_class_symlinks(struct device *dev)
 {
+	struct device_node *of_node = dev_of_node(dev);
 	int error;
 
+	if (of_node) {
+		error = sysfs_create_link(&dev->kobj, &of_node->kobj,"of_node");
+		if (error)
+			dev_warn(dev, "Error %d creating of_node link\n",error);
+		/* An error here doesn't warrant bringing down the device */
+	}
+
 	if (!dev->class)
 		return 0;
 
@@ -814,7 +822,7 @@ static int device_add_class_symlinks(struct device *dev)
 				  &dev->class->p->subsys.kobj,
 				  "subsystem");
 	if (error)
-		goto out;
+		goto out_devnode;
 
 	if (dev->parent && device_is_not_partition(dev)) {
 		error = sysfs_create_link(&dev->kobj, &dev->parent->kobj,
@@ -842,12 +850,16 @@ out_device:
 
 out_subsys:
 	sysfs_remove_link(&dev->kobj, "subsystem");
-out:
+out_devnode:
+	sysfs_remove_link(&dev->kobj, "of_node");
 	return error;
 }
 
 static void device_remove_class_symlinks(struct device *dev)
 {
+	if (dev_of_node(dev))
+		sysfs_remove_link(&dev->kobj, "of_node");
+
 	if (!dev->class)
 		return;
 
@@ -1095,8 +1107,7 @@ done:
 	kobject_del(&dev->kobj);
  Error:
 	cleanup_device_parent(dev);
-	if (parent)
-		put_device(parent);
+	put_device(parent);
 name_error:
 	kfree(dev->p);
 	dev->p = NULL;
diff --git a/drivers/base/dd.c b/drivers/base/dd.c
index cdc779c..49a4a12 100644
--- a/drivers/base/dd.c
+++ b/drivers/base/dd.c
@@ -320,21 +320,25 @@ probe_failed:
 	dev->driver = NULL;
 	dev_set_drvdata(dev, NULL);
 
-	if (ret == -EPROBE_DEFER) {
+	switch (ret) {
+	case -EPROBE_DEFER:
 		/* Driver requested deferred probing */
-		dev_info(dev, "Driver %s requests probe deferral\n", drv->name);
+		dev_dbg(dev, "Driver %s requests probe deferral\n", drv->name);
 		driver_deferred_probe_add(dev);
 		/* Did a trigger occur while probing? Need to re-trigger if yes */
 		if (local_trigger_count != atomic_read(&deferred_trigger_count))
 			driver_deferred_probe_trigger();
-	} else if (ret != -ENODEV && ret != -ENXIO) {
+		break;
+	case -ENODEV:
+	case -ENXIO:
+		pr_debug("%s: probe of %s rejects match %d\n",
+			 drv->name, dev_name(dev), ret);
+		break;
+	default:
 		/* driver matched but the probe failed */
 		printk(KERN_WARNING
 		       "%s: probe of %s failed with error %d\n",
 		       drv->name, dev_name(dev), ret);
-	} else {
-		pr_debug("%s: probe of %s rejects match %d\n",
-		       drv->name, dev_name(dev), ret);
 	}
 	/*
 	 * Ignore errors returned by ->probe so that the next driver can try
diff --git a/drivers/base/dma-mapping.c b/drivers/base/dma-mapping.c
index 9e8bbdd..d95c597 100644
--- a/drivers/base/dma-mapping.c
+++ b/drivers/base/dma-mapping.c
@@ -62,7 +62,7 @@ static int dmam_match(struct device *dev, void *res, void *match_data)
  * RETURNS:
  * Pointer to allocated memory on success, NULL on failure.
  */
-void * dmam_alloc_coherent(struct device *dev, size_t size,
+void *dmam_alloc_coherent(struct device *dev, size_t size,
 			   dma_addr_t *dma_handle, gfp_t gfp)
 {
 	struct dma_devres *dr;
diff --git a/drivers/base/driver.c b/drivers/base/driver.c
index 9e29943..4eabfe2 100644
--- a/drivers/base/driver.c
+++ b/drivers/base/driver.c
@@ -103,6 +103,7 @@ int driver_create_file(struct device_driver *drv,
 		       const struct driver_attribute *attr)
 {
 	int error;
+
 	if (drv)
 		error = sysfs_create_file(&drv->p->kobj, &attr->attr);
 	else
diff --git a/drivers/base/firmware_class.c b/drivers/base/firmware_class.c
index 6c5c9ed..171841a 100644
--- a/drivers/base/firmware_class.c
+++ b/drivers/base/firmware_class.c
@@ -181,7 +181,7 @@ static struct firmware_buf *__allocate_fw_buf(const char *fw_name,
 {
 	struct firmware_buf *buf;
 
-	buf = kzalloc(sizeof(*buf) + strlen(fw_name) + 1 , GFP_ATOMIC);
+	buf = kzalloc(sizeof(*buf) + strlen(fw_name) + 1, GFP_ATOMIC);
 
 	if (!buf)
 		return buf;
@@ -835,6 +835,26 @@ static struct bin_attribute firmware_attr_data = {
 	.write = firmware_data_write,
 };
 
+static struct attribute *fw_dev_attrs[] = {
+	&dev_attr_loading.attr,
+	NULL
+};
+
+static struct bin_attribute *fw_dev_bin_attrs[] = {
+	&firmware_attr_data,
+	NULL
+};
+
+static const struct attribute_group fw_dev_attr_group = {
+	.attrs = fw_dev_attrs,
+	.bin_attrs = fw_dev_bin_attrs,
+};
+
+static const struct attribute_group *fw_dev_attr_groups[] = {
+	&fw_dev_attr_group,
+	NULL
+};
+
 static struct firmware_priv *
 fw_create_instance(struct firmware *firmware, const char *fw_name,
 		   struct device *device, unsigned int opt_flags)
@@ -856,6 +876,7 @@ fw_create_instance(struct firmware *firmware, const char *fw_name,
 	dev_set_name(f_dev, "%s", fw_name);
 	f_dev->parent = device;
 	f_dev->class = &firmware_class;
+	f_dev->groups = fw_dev_attr_groups;
 exit:
 	return fw_priv;
 }
@@ -879,25 +900,10 @@ static int _request_firmware_load(struct firmware_priv *fw_priv,
 		goto err_put_dev;
 	}
 
-	retval = device_create_bin_file(f_dev, &firmware_attr_data);
-	if (retval) {
-		dev_err(f_dev, "%s: sysfs_create_bin_file failed\n", __func__);
-		goto err_del_dev;
-	}
-
 	mutex_lock(&fw_lock);
 	list_add(&buf->pending_list, &pending_fw_head);
 	mutex_unlock(&fw_lock);
 
-	retval = device_create_file(f_dev, &dev_attr_loading);
-	if (retval) {
-		mutex_lock(&fw_lock);
-		list_del_init(&buf->pending_list);
-		mutex_unlock(&fw_lock);
-		dev_err(f_dev, "%s: device_create_file failed\n", __func__);
-		goto err_del_bin_attr;
-	}
-
 	if (opt_flags & FW_OPT_UEVENT) {
 		buf->need_uevent = true;
 		dev_set_uevent_suppress(f_dev, false);
@@ -913,6 +919,8 @@ static int _request_firmware_load(struct firmware_priv *fw_priv,
 		mutex_lock(&fw_lock);
 		fw_load_abort(fw_priv);
 		mutex_unlock(&fw_lock);
+	} else if (retval > 0) {
+		retval = 0;
 	}
 
 	if (is_fw_load_aborted(buf))
@@ -920,10 +928,6 @@ static int _request_firmware_load(struct firmware_priv *fw_priv,
 	else if (!buf->data)
 		retval = -ENOMEM;
 
-	device_remove_file(f_dev, &dev_attr_loading);
-err_del_bin_attr:
-	device_remove_bin_file(f_dev, &firmware_attr_data);
-err_del_dev:
 	device_del(f_dev);
 err_put_dev:
 	put_device(f_dev);
@@ -1168,7 +1172,7 @@ _request_firmware(const struct firmware **firmware_p, const char *name,
  **/
 int
 request_firmware(const struct firmware **firmware_p, const char *name,
-                 struct device *device)
+		 struct device *device)
 {
 	int ret;
 
@@ -1196,6 +1200,7 @@ int request_firmware_direct(const struct firmware **firmware_p,
 			    const char *name, struct device *device)
 {
 	int ret;
+
 	__module_get(THIS_MODULE);
 	ret = _request_firmware(firmware_p, name, device,
 				FW_OPT_UEVENT | FW_OPT_NO_WARN);
@@ -1276,7 +1281,7 @@ request_firmware_nowait(
 {
 	struct firmware_work *fw_work;
 
-	fw_work = kzalloc(sizeof (struct firmware_work), gfp);
+	fw_work = kzalloc(sizeof(struct firmware_work), gfp);
 	if (!fw_work)
 		return -ENOMEM;
 
diff --git a/drivers/base/map.c b/drivers/base/map.c
index e87017f..c1d3823 100644
--- a/drivers/base/map.c
+++ b/drivers/base/map.c
@@ -41,8 +41,7 @@ int kobj_map(struct kobj_map *domain, dev_t dev, unsigned long range,
 	if (n > 255)
 		n = 255;
 
-	p = kmalloc(sizeof(struct probe) * n, GFP_KERNEL);
-
+	p = kmalloc_array(n, sizeof(struct probe), GFP_KERNEL);
 	if (p == NULL)
 		return -ENOMEM;
 
diff --git a/drivers/base/memory.c b/drivers/base/memory.c
index 85be040..af9c911 100644
--- a/drivers/base/memory.c
+++ b/drivers/base/memory.c
@@ -52,13 +52,13 @@ static BLOCKING_NOTIFIER_HEAD(memory_chain);
 
 int register_memory_notifier(struct notifier_block *nb)
 {
-        return blocking_notifier_chain_register(&memory_chain, nb);
+	return blocking_notifier_chain_register(&memory_chain, nb);
 }
 EXPORT_SYMBOL(register_memory_notifier);
 
 void unregister_memory_notifier(struct notifier_block *nb)
 {
-        blocking_notifier_chain_unregister(&memory_chain, nb);
+	blocking_notifier_chain_unregister(&memory_chain, nb);
 }
 EXPORT_SYMBOL(unregister_memory_notifier);
 
@@ -152,20 +152,20 @@ static ssize_t show_mem_state(struct device *dev,
 	 * so that they're not open-coded
 	 */
 	switch (mem->state) {
-		case MEM_ONLINE:
-			len = sprintf(buf, "online\n");
-			break;
-		case MEM_OFFLINE:
-			len = sprintf(buf, "offline\n");
-			break;
-		case MEM_GOING_OFFLINE:
-			len = sprintf(buf, "going-offline\n");
-			break;
-		default:
-			len = sprintf(buf, "ERROR-UNKNOWN-%ld\n",
-					mem->state);
-			WARN_ON(1);
-			break;
+	case MEM_ONLINE:
+		len = sprintf(buf, "online\n");
+		break;
+	case MEM_OFFLINE:
+		len = sprintf(buf, "offline\n");
+		break;
+	case MEM_GOING_OFFLINE:
+		len = sprintf(buf, "going-offline\n");
+		break;
+	default:
+		len = sprintf(buf, "ERROR-UNKNOWN-%ld\n",
+				mem->state);
+		WARN_ON(1);
+		break;
 	}
 
 	return len;
@@ -232,19 +232,19 @@ memory_block_action(unsigned long phys_index, unsigned long action, int online_t
 	first_page = pfn_to_page(start_pfn);
 
 	switch (action) {
-		case MEM_ONLINE:
-			if (!pages_correctly_reserved(start_pfn))
-				return -EBUSY;
-
-			ret = online_pages(start_pfn, nr_pages, online_type);
-			break;
-		case MEM_OFFLINE:
-			ret = offline_pages(start_pfn, nr_pages);
-			break;
-		default:
-			WARN(1, KERN_WARNING "%s(%ld, %ld) unknown action: "
-			     "%ld\n", __func__, phys_index, action, action);
-			ret = -EINVAL;
+	case MEM_ONLINE:
+		if (!pages_correctly_reserved(start_pfn))
+			return -EBUSY;
+
+		ret = online_pages(start_pfn, nr_pages, online_type);
+		break;
+	case MEM_OFFLINE:
+		ret = offline_pages(start_pfn, nr_pages);
+		break;
+	default:
+		WARN(1, KERN_WARNING "%s(%ld, %ld) unknown action: "
+		     "%ld\n", __func__, phys_index, action, action);
+		ret = -EINVAL;
 	}
 
 	return ret;
diff --git a/drivers/base/node.c b/drivers/base/node.c
index 36fabe43..a2aa65b 100644
--- a/drivers/base/node.c
+++ b/drivers/base/node.c
@@ -180,7 +180,7 @@ static ssize_t node_read_vmstat(struct device *dev,
 static DEVICE_ATTR(vmstat, S_IRUGO, node_read_vmstat, NULL);
 
 static ssize_t node_read_distance(struct device *dev,
-			struct device_attribute *attr, char * buf)
+			struct device_attribute *attr, char *buf)
 {
 	int nid = dev->id;
 	int len = 0;
@@ -200,6 +200,17 @@ static ssize_t node_read_distance(struct device *dev,
 }
 static DEVICE_ATTR(distance, S_IRUGO, node_read_distance, NULL);
 
+static struct attribute *node_dev_attrs[] = {
+	&dev_attr_cpumap.attr,
+	&dev_attr_cpulist.attr,
+	&dev_attr_meminfo.attr,
+	&dev_attr_numastat.attr,
+	&dev_attr_distance.attr,
+	&dev_attr_vmstat.attr,
+	NULL
+};
+ATTRIBUTE_GROUPS(node_dev);
+
 #ifdef CONFIG_HUGETLBFS
 /*
  * hugetlbfs per node attributes registration interface:
@@ -273,16 +284,10 @@ static int register_node(struct node *node, int num, struct node *parent)
 	node->dev.id = num;
 	node->dev.bus = &node_subsys;
 	node->dev.release = node_device_release;
+	node->dev.groups = node_dev_groups;
 	error = device_register(&node->dev);
 
 	if (!error){
-		device_create_file(&node->dev, &dev_attr_cpumap);
-		device_create_file(&node->dev, &dev_attr_cpulist);
-		device_create_file(&node->dev, &dev_attr_meminfo);
-		device_create_file(&node->dev, &dev_attr_numastat);
-		device_create_file(&node->dev, &dev_attr_distance);
-		device_create_file(&node->dev, &dev_attr_vmstat);
-
 		hugetlb_register_node(node);
 
 		compaction_register_node(node);
@@ -299,13 +304,6 @@ static int register_node(struct node *node, int num, struct node *parent)
  */
 void unregister_node(struct node *node)
 {
-	device_remove_file(&node->dev, &dev_attr_cpumap);
-	device_remove_file(&node->dev, &dev_attr_cpulist);
-	device_remove_file(&node->dev, &dev_attr_meminfo);
-	device_remove_file(&node->dev, &dev_attr_numastat);
-	device_remove_file(&node->dev, &dev_attr_distance);
-	device_remove_file(&node->dev, &dev_attr_vmstat);
-
 	hugetlb_unregister_node(node);		/* no-op, if memoryless node */
 
 	device_unregister(&node->dev);
diff --git a/drivers/base/platform.c b/drivers/base/platform.c
index 9421fed..e68ab79 100644
--- a/drivers/base/platform.c
+++ b/drivers/base/platform.c
@@ -101,6 +101,15 @@ int platform_get_irq(struct platform_device *dev, unsigned int num)
 	}
 
 	r = platform_get_resource(dev, IORESOURCE_IRQ, num);
+	/*
+	 * The resources may pass trigger flags to the irqs that need
+	 * to be set up. It so happens that the trigger flags for
+	 * IORESOURCE_BITS correspond 1-to-1 to the IRQF_TRIGGER*
+	 * settings.
+	 */
+	if (r && r->flags & IORESOURCE_BITS)
+		irqd_set_trigger_type(irq_get_irq_data(r->start),
+				      r->flags & IORESOURCE_BITS);
 
 	return r ? r->start : -ENXIO;
 #endif
diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c
index ba4abbe..45937f8 100644
--- a/drivers/base/power/domain.c
+++ b/drivers/base/power/domain.c
@@ -2242,7 +2242,7 @@ static void rtpm_status_str(struct seq_file *s, struct device *dev)
 }
 
 static int pm_genpd_summary_one(struct seq_file *s,
-		struct generic_pm_domain *gpd)
+				struct generic_pm_domain *genpd)
 {
 	static const char * const status_lookup[] = {
 		[GPD_STATE_ACTIVE] = "on",
@@ -2256,26 +2256,26 @@ static int pm_genpd_summary_one(struct seq_file *s,
 	struct gpd_link *link;
 	int ret;
 
-	ret = mutex_lock_interruptible(&gpd->lock);
+	ret = mutex_lock_interruptible(&genpd->lock);
 	if (ret)
 		return -ERESTARTSYS;
 
-	if (WARN_ON(gpd->status >= ARRAY_SIZE(status_lookup)))
+	if (WARN_ON(genpd->status >= ARRAY_SIZE(status_lookup)))
 		goto exit;
-	seq_printf(s, "%-30s  %-15s  ", gpd->name, status_lookup[gpd->status]);
+	seq_printf(s, "%-30s  %-15s  ", genpd->name, status_lookup[genpd->status]);
 
 	/*
 	 * Modifications on the list require holding locks on both
 	 * master and slave, so we are safe.
-	 * Also gpd->name is immutable.
+	 * Also genpd->name is immutable.
 	 */
-	list_for_each_entry(link, &gpd->master_links, master_node) {
+	list_for_each_entry(link, &genpd->master_links, master_node) {
 		seq_printf(s, "%s", link->slave->name);
-		if (!list_is_last(&link->master_node, &gpd->master_links))
+		if (!list_is_last(&link->master_node, &genpd->master_links))
 			seq_puts(s, ", ");
 	}
 
-	list_for_each_entry(pm_data, &gpd->dev_list, list_node) {
+	list_for_each_entry(pm_data, &genpd->dev_list, list_node) {
 		kobj_path = kobject_get_path(&pm_data->dev->kobj, GFP_KERNEL);
 		if (kobj_path == NULL)
 			continue;
@@ -2287,14 +2287,14 @@ static int pm_genpd_summary_one(struct seq_file *s,
 
 	seq_puts(s, "\n");
 exit:
-	mutex_unlock(&gpd->lock);
+	mutex_unlock(&genpd->lock);
 
 	return 0;
 }
 
 static int pm_genpd_summary_show(struct seq_file *s, void *data)
 {
-	struct generic_pm_domain *gpd;
+	struct generic_pm_domain *genpd;
 	int ret = 0;
 
 	seq_puts(s, "    domain                      status         slaves\n");
@@ -2305,8 +2305,8 @@ static int pm_genpd_summary_show(struct seq_file *s, void *data)
 	if (ret)
 		return -ERESTARTSYS;
 
-	list_for_each_entry(gpd, &gpd_list, gpd_list_node) {
-		ret = pm_genpd_summary_one(s, gpd);
+	list_for_each_entry(genpd, &gpd_list, gpd_list_node) {
+		ret = pm_genpd_summary_one(s, genpd);
 		if (ret)
 			break;
 	}
diff --git a/drivers/base/power/wakeup.c b/drivers/base/power/wakeup.c
index c2744b3..aab7158 100644
--- a/drivers/base/power/wakeup.c
+++ b/drivers/base/power/wakeup.c
@@ -730,6 +730,7 @@ void pm_system_wakeup(void)
 	pm_abort_suspend = true;
 	freeze_wake();
 }
+EXPORT_SYMBOL_GPL(pm_system_wakeup);
 
 void pm_wakeup_clear(void)
 {
diff --git a/drivers/base/property.c b/drivers/base/property.c
index c458458..423df59 100644
--- a/drivers/base/property.c
+++ b/drivers/base/property.c
@@ -365,7 +365,7 @@ int fwnode_property_read_string(struct fwnode_handle *fwnode,
 				const char *propname, const char **val)
 {
 	if (is_of_node(fwnode))
-		return of_property_read_string(of_node(fwnode),propname, val);
+		return of_property_read_string(of_node(fwnode), propname, val);
 	else if (is_acpi_node(fwnode))
 		return acpi_dev_prop_read(acpi_node(fwnode), propname,
 					  DEV_PROP_STRING, val, 1);
diff --git a/drivers/base/regmap/Makefile b/drivers/base/regmap/Makefile
index 0a53365..609e4c8 100644
--- a/drivers/base/regmap/Makefile
+++ b/drivers/base/regmap/Makefile
@@ -1,3 +1,6 @@
+# For include/trace/define_trace.h to include trace.h
+CFLAGS_regmap.o := -I$(src)
+
 obj-$(CONFIG_REGMAP) += regmap.o regcache.o
 obj-$(CONFIG_REGMAP) += regcache-rbtree.o regcache-lzo.o regcache-flat.o
 obj-$(CONFIG_DEBUG_FS) += regmap-debugfs.o
diff --git a/drivers/base/regmap/internal.h b/drivers/base/regmap/internal.h
index beb8b27..a13587b 100644
--- a/drivers/base/regmap/internal.h
+++ b/drivers/base/regmap/internal.h
@@ -243,4 +243,12 @@ extern struct regcache_ops regcache_rbtree_ops;
 extern struct regcache_ops regcache_lzo_ops;
 extern struct regcache_ops regcache_flat_ops;
 
+static inline const char *regmap_name(const struct regmap *map)
+{
+	if (map->dev)
+		return dev_name(map->dev);
+
+	return map->name;
+}
+
 #endif
diff --git a/drivers/base/regmap/regcache-rbtree.c b/drivers/base/regmap/regcache-rbtree.c
index d453a2c..81751a4 100644
--- a/drivers/base/regmap/regcache-rbtree.c
+++ b/drivers/base/regmap/regcache-rbtree.c
@@ -307,7 +307,7 @@ static int regcache_rbtree_insert_to_block(struct regmap *map,
 	if (pos == 0) {
 		memmove(blk + offset * map->cache_word_size,
 			blk, rbnode->blklen * map->cache_word_size);
-		bitmap_shift_right(present, present, offset, blklen);
+		bitmap_shift_left(present, present, offset, blklen);
 	}
 
 	/* update the rbnode block, its size and the base register */
diff --git a/drivers/base/regmap/regcache.c b/drivers/base/regmap/regcache.c
index f373c35..7eb7b3b 100644
--- a/drivers/base/regmap/regcache.c
+++ b/drivers/base/regmap/regcache.c
@@ -15,8 +15,8 @@
 #include <linux/export.h>
 #include <linux/slab.h>
 #include <linux/sort.h>
-#include <trace/events/regmap.h>
 
+#include "trace.h"
 #include "internal.h"
 
 static const struct regcache_ops *cache_types[] = {
@@ -218,7 +218,7 @@ int regcache_read(struct regmap *map,
 		ret = map->cache_ops->read(map, reg, value);
 
 		if (ret == 0)
-			trace_regmap_reg_read_cache(map->dev, reg, *value);
+			trace_regmap_reg_read_cache(map, reg, *value);
 
 		return ret;
 	}
@@ -311,7 +311,7 @@ int regcache_sync(struct regmap *map)
 	dev_dbg(map->dev, "Syncing %s cache\n",
 		map->cache_ops->name);
 	name = map->cache_ops->name;
-	trace_regcache_sync(map->dev, name, "start");
+	trace_regcache_sync(map, name, "start");
 
 	if (!map->cache_dirty)
 		goto out;
@@ -346,7 +346,7 @@ out:
 
 	regmap_async_complete(map);
 
-	trace_regcache_sync(map->dev, name, "stop");
+	trace_regcache_sync(map, name, "stop");
 
 	return ret;
 }
@@ -381,7 +381,7 @@ int regcache_sync_region(struct regmap *map, unsigned int min,
 	name = map->cache_ops->name;
 	dev_dbg(map->dev, "Syncing %s cache from %d-%d\n", name, min, max);
 
-	trace_regcache_sync(map->dev, name, "start region");
+	trace_regcache_sync(map, name, "start region");
 
 	if (!map->cache_dirty)
 		goto out;
@@ -401,7 +401,7 @@ out:
 
 	regmap_async_complete(map);
 
-	trace_regcache_sync(map->dev, name, "stop region");
+	trace_regcache_sync(map, name, "stop region");
 
 	return ret;
 }
@@ -428,7 +428,7 @@ int regcache_drop_region(struct regmap *map, unsigned int min,
 
 	map->lock(map->lock_arg);
 
-	trace_regcache_drop_region(map->dev, min, max);
+	trace_regcache_drop_region(map, min, max);
 
 	ret = map->cache_ops->drop(map, min, max);
 
@@ -455,7 +455,7 @@ void regcache_cache_only(struct regmap *map, bool enable)
 	map->lock(map->lock_arg);
 	WARN_ON(map->cache_bypass && enable);
 	map->cache_only = enable;
-	trace_regmap_cache_only(map->dev, enable);
+	trace_regmap_cache_only(map, enable);
 	map->unlock(map->lock_arg);
 }
 EXPORT_SYMBOL_GPL(regcache_cache_only);
@@ -493,7 +493,7 @@ void regcache_cache_bypass(struct regmap *map, bool enable)
 	map->lock(map->lock_arg);
 	WARN_ON(map->cache_only && enable);
 	map->cache_bypass = enable;
-	trace_regmap_cache_bypass(map->dev, enable);
+	trace_regmap_cache_bypass(map, enable);
 	map->unlock(map->lock_arg);
 }
 EXPORT_SYMBOL_GPL(regcache_cache_bypass);
@@ -608,7 +608,8 @@ static int regcache_sync_block_single(struct regmap *map, void *block,
 	for (i = start; i < end; i++) {
 		regtmp = block_base + (i * map->reg_stride);
 
-		if (!regcache_reg_present(cache_present, i))
+		if (!regcache_reg_present(cache_present, i) ||
+		    !regmap_writeable(map, regtmp))
 			continue;
 
 		val = regcache_get_val(map, block, i);
@@ -677,7 +678,8 @@ static int regcache_sync_block_raw(struct regmap *map, void *block,
 	for (i = start; i < end; i++) {
 		regtmp = block_base + (i * map->reg_stride);
 
-		if (!regcache_reg_present(cache_present, i)) {
+		if (!regcache_reg_present(cache_present, i) ||
+		    !regmap_writeable(map, regtmp)) {
 			ret = regcache_sync_block_raw_flush(map, &data,
 							    base, regtmp);
 			if (ret != 0)
diff --git a/drivers/base/regmap/regmap-irq.c b/drivers/base/regmap/regmap-irq.c
index 6299a50..a6c3f75 100644
--- a/drivers/base/regmap/regmap-irq.c
+++ b/drivers/base/regmap/regmap-irq.c
@@ -499,7 +499,8 @@ int regmap_add_irq_chip(struct regmap *map, int irq, int irq_flags,
 		goto err_alloc;
 	}
 
-	ret = request_threaded_irq(irq, NULL, regmap_irq_thread, irq_flags,
+	ret = request_threaded_irq(irq, NULL, regmap_irq_thread,
+				   irq_flags | IRQF_ONESHOT,
 				   chip->name, d);
 	if (ret != 0) {
 		dev_err(map->dev, "Failed to request IRQ %d for %s: %d\n",
diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c
index f99b098..6273ff0 100644
--- a/drivers/base/regmap/regmap.c
+++ b/drivers/base/regmap/regmap.c
@@ -20,7 +20,7 @@
 #include <linux/sched.h>
 
 #define CREATE_TRACE_POINTS
-#include <trace/events/regmap.h>
+#include "trace.h"
 
 #include "internal.h"
 
@@ -1281,7 +1281,7 @@ int _regmap_raw_write(struct regmap *map, unsigned int reg,
 	if (map->async && map->bus->async_write) {
 		struct regmap_async *async;
 
-		trace_regmap_async_write_start(map->dev, reg, val_len);
+		trace_regmap_async_write_start(map, reg, val_len);
 
 		spin_lock_irqsave(&map->async_lock, flags);
 		async = list_first_entry_or_null(&map->async_free,
@@ -1339,8 +1339,7 @@ int _regmap_raw_write(struct regmap *map, unsigned int reg,
 		return ret;
 	}
 
-	trace_regmap_hw_write_start(map->dev, reg,
-				    val_len / map->format.val_bytes);
+	trace_regmap_hw_write_start(map, reg, val_len / map->format.val_bytes);
 
 	/* If we're doing a single register write we can probably just
 	 * send the work_buf directly, otherwise try to do a gather
@@ -1372,8 +1371,7 @@ int _regmap_raw_write(struct regmap *map, unsigned int reg,
 		kfree(buf);
 	}
 
-	trace_regmap_hw_write_done(map->dev, reg,
-				   val_len / map->format.val_bytes);
+	trace_regmap_hw_write_done(map, reg, val_len / map->format.val_bytes);
 
 	return ret;
 }
@@ -1407,12 +1405,12 @@ static int _regmap_bus_formatted_write(void *context, unsigned int reg,
 
 	map->format.format_write(map, reg, val);
 
-	trace_regmap_hw_write_start(map->dev, reg, 1);
+	trace_regmap_hw_write_start(map, reg, 1);
 
 	ret = map->bus->write(map->bus_context, map->work_buf,
 			      map->format.buf_size);
 
-	trace_regmap_hw_write_done(map->dev, reg, 1);
+	trace_regmap_hw_write_done(map, reg, 1);
 
 	return ret;
 }
@@ -1470,7 +1468,7 @@ int _regmap_write(struct regmap *map, unsigned int reg,
 		dev_info(map->dev, "%x <= %x\n", reg, val);
 #endif
 
-	trace_regmap_reg_write(map->dev, reg, val);
+	trace_regmap_reg_write(map, reg, val);
 
 	return map->reg_write(context, reg, val);
 }
@@ -1773,7 +1771,7 @@ static int _regmap_raw_multi_reg_write(struct regmap *map,
 	for (i = 0; i < num_regs; i++) {
 		int reg = regs[i].reg;
 		int val = regs[i].def;
-		trace_regmap_hw_write_start(map->dev, reg, 1);
+		trace_regmap_hw_write_start(map, reg, 1);
 		map->format.format_reg(u8, reg, map->reg_shift);
 		u8 += reg_bytes + pad_bytes;
 		map->format.format_val(u8, val, 0);
@@ -1788,7 +1786,7 @@ static int _regmap_raw_multi_reg_write(struct regmap *map,
 
 	for (i = 0; i < num_regs; i++) {
 		int reg = regs[i].reg;
-		trace_regmap_hw_write_done(map->dev, reg, 1);
+		trace_regmap_hw_write_done(map, reg, 1);
 	}
 	return ret;
 }
@@ -2059,15 +2057,13 @@ static int _regmap_raw_read(struct regmap *map, unsigned int reg, void *val,
 	 */
 	u8[0] |= map->read_flag_mask;
 
-	trace_regmap_hw_read_start(map->dev, reg,
-				   val_len / map->format.val_bytes);
+	trace_regmap_hw_read_start(map, reg, val_len / map->format.val_bytes);
 
 	ret = map->bus->read(map->bus_context, map->work_buf,
 			     map->format.reg_bytes + map->format.pad_bytes,
 			     val, val_len);
 
-	trace_regmap_hw_read_done(map->dev, reg,
-				  val_len / map->format.val_bytes);
+	trace_regmap_hw_read_done(map, reg, val_len / map->format.val_bytes);
 
 	return ret;
 }
@@ -2123,7 +2119,7 @@ static int _regmap_read(struct regmap *map, unsigned int reg,
 			dev_info(map->dev, "%x => %x\n", reg, *val);
 #endif
 
-		trace_regmap_reg_read(map->dev, reg, *val);
+		trace_regmap_reg_read(map, reg, *val);
 
 		if (!map->cache_bypass)
 			regcache_write(map, reg, *val);
@@ -2480,7 +2476,7 @@ void regmap_async_complete_cb(struct regmap_async *async, int ret)
 	struct regmap *map = async->map;
 	bool wake;
 
-	trace_regmap_async_io_complete(map->dev);
+	trace_regmap_async_io_complete(map);
 
 	spin_lock(&map->async_lock);
 	list_move(&async->list, &map->async_free);
@@ -2525,7 +2521,7 @@ int regmap_async_complete(struct regmap *map)
 	if (!map->bus || !map->bus->async_write)
 		return 0;
 
-	trace_regmap_async_complete_start(map->dev);
+	trace_regmap_async_complete_start(map);
 
 	wait_event(map->async_waitq, regmap_async_is_done(map));
 
@@ -2534,7 +2530,7 @@ int regmap_async_complete(struct regmap *map)
 	map->async_ret = 0;
 	spin_unlock_irqrestore(&map->async_lock, flags);
 
-	trace_regmap_async_complete_done(map->dev);
+	trace_regmap_async_complete_done(map);
 
 	return ret;
 }
diff --git a/include/trace/events/regmap.h b/drivers/base/regmap/trace.h
index 23d5615..64586a1 100644
--- a/include/trace/events/regmap.h
+++ b/drivers/base/regmap/trace.h
@@ -7,27 +7,26 @@
 #include <linux/ktime.h>
 #include <linux/tracepoint.h>
 
-struct device;
-struct regmap;
+#include "internal.h"
 
 /*
  * Log register events
  */
 DECLARE_EVENT_CLASS(regmap_reg,
 
-	TP_PROTO(struct device *dev, unsigned int reg,
+	TP_PROTO(struct regmap *map, unsigned int reg,
 		 unsigned int val),
 
-	TP_ARGS(dev, reg, val),
+	TP_ARGS(map, reg, val),
 
 	TP_STRUCT__entry(
-		__string(	name,		dev_name(dev)	)
-		__field(	unsigned int,	reg		)
-		__field(	unsigned int,	val		)
+		__string(	name,		regmap_name(map)	)
+		__field(	unsigned int,	reg			)
+		__field(	unsigned int,	val			)
 	),
 
 	TP_fast_assign(
-		__assign_str(name, dev_name(dev));
+		__assign_str(name, regmap_name(map));
 		__entry->reg = reg;
 		__entry->val = val;
 	),
@@ -39,45 +38,45 @@ DECLARE_EVENT_CLASS(regmap_reg,
 
 DEFINE_EVENT(regmap_reg, regmap_reg_write,
 
-	TP_PROTO(struct device *dev, unsigned int reg,
+	TP_PROTO(struct regmap *map, unsigned int reg,
 		 unsigned int val),
 
-	TP_ARGS(dev, reg, val)
+	TP_ARGS(map, reg, val)
 
 );
 
 DEFINE_EVENT(regmap_reg, regmap_reg_read,
 
-	TP_PROTO(struct device *dev, unsigned int reg,
+	TP_PROTO(struct regmap *map, unsigned int reg,
 		 unsigned int val),
 
-	TP_ARGS(dev, reg, val)
+	TP_ARGS(map, reg, val)
 
 );
 
 DEFINE_EVENT(regmap_reg, regmap_reg_read_cache,
 
-	TP_PROTO(struct device *dev, unsigned int reg,
+	TP_PROTO(struct regmap *map, unsigned int reg,
 		 unsigned int val),
 
-	TP_ARGS(dev, reg, val)
+	TP_ARGS(map, reg, val)
 
 );
 
 DECLARE_EVENT_CLASS(regmap_block,
 
-	TP_PROTO(struct device *dev, unsigned int reg, int count),
+	TP_PROTO(struct regmap *map, unsigned int reg, int count),
 
-	TP_ARGS(dev, reg, count),
+	TP_ARGS(map, reg, count),
 
 	TP_STRUCT__entry(
-		__string(	name,		dev_name(dev)	)
-		__field(	unsigned int,	reg		)
-		__field(	int,		count		)
+		__string(	name,		regmap_name(map)	)
+		__field(	unsigned int,	reg			)
+		__field(	int,		count			)
 	),
 
 	TP_fast_assign(
-		__assign_str(name, dev_name(dev));
+		__assign_str(name, regmap_name(map));
 		__entry->reg = reg;
 		__entry->count = count;
 	),
@@ -89,48 +88,48 @@ DECLARE_EVENT_CLASS(regmap_block,
 
 DEFINE_EVENT(regmap_block, regmap_hw_read_start,
 
-	TP_PROTO(struct device *dev, unsigned int reg, int count),
+	TP_PROTO(struct regmap *map, unsigned int reg, int count),
 
-	TP_ARGS(dev, reg, count)
+	TP_ARGS(map, reg, count)
 );
 
 DEFINE_EVENT(regmap_block, regmap_hw_read_done,
 
-	TP_PROTO(struct device *dev, unsigned int reg, int count),
+	TP_PROTO(struct regmap *map, unsigned int reg, int count),
 
-	TP_ARGS(dev, reg, count)
+	TP_ARGS(map, reg, count)
 );
 
 DEFINE_EVENT(regmap_block, regmap_hw_write_start,
 
-	TP_PROTO(struct device *dev, unsigned int reg, int count),
+	TP_PROTO(struct regmap *map, unsigned int reg, int count),
 
-	TP_ARGS(dev, reg, count)
+	TP_ARGS(map, reg, count)
 );
 
 DEFINE_EVENT(regmap_block, regmap_hw_write_done,
 
-	TP_PROTO(struct device *dev, unsigned int reg, int count),
+	TP_PROTO(struct regmap *map, unsigned int reg, int count),
 
-	TP_ARGS(dev, reg, count)
+	TP_ARGS(map, reg, count)
 );
 
 TRACE_EVENT(regcache_sync,
 
-	TP_PROTO(struct device *dev, const char *type,
+	TP_PROTO(struct regmap *map, const char *type,
 		 const char *status),
 
-	TP_ARGS(dev, type, status),
+	TP_ARGS(map, type, status),
 
 	TP_STRUCT__entry(
-		__string(       name,           dev_name(dev)   )
-		__string(	status,		status		)
-		__string(	type,		type		)
-		__field(	int,		type		)
+		__string(       name,           regmap_name(map)	)
+		__string(	status,		status			)
+		__string(	type,		type			)
+		__field(	int,		type			)
 	),
 
 	TP_fast_assign(
-		__assign_str(name, dev_name(dev));
+		__assign_str(name, regmap_name(map));
 		__assign_str(status, status);
 		__assign_str(type, type);
 	),
@@ -141,17 +140,17 @@ TRACE_EVENT(regcache_sync,
 
 DECLARE_EVENT_CLASS(regmap_bool,
 
-	TP_PROTO(struct device *dev, bool flag),
+	TP_PROTO(struct regmap *map, bool flag),
 
-	TP_ARGS(dev, flag),
+	TP_ARGS(map, flag),
 
 	TP_STRUCT__entry(
-		__string(	name,		dev_name(dev)	)
-		__field(	int,		flag		)
+		__string(	name,		regmap_name(map)	)
+		__field(	int,		flag			)
 	),
 
 	TP_fast_assign(
-		__assign_str(name, dev_name(dev));
+		__assign_str(name, regmap_name(map));
 		__entry->flag = flag;
 	),
 
@@ -161,32 +160,32 @@ DECLARE_EVENT_CLASS(regmap_bool,
 
 DEFINE_EVENT(regmap_bool, regmap_cache_only,
 
-	TP_PROTO(struct device *dev, bool flag),
+	TP_PROTO(struct regmap *map, bool flag),
 
-	TP_ARGS(dev, flag)
+	TP_ARGS(map, flag)
 
 );
 
 DEFINE_EVENT(regmap_bool, regmap_cache_bypass,
 
-	TP_PROTO(struct device *dev, bool flag),
+	TP_PROTO(struct regmap *map, bool flag),
 
-	TP_ARGS(dev, flag)
+	TP_ARGS(map, flag)
 
 );
 
 DECLARE_EVENT_CLASS(regmap_async,
 
-	TP_PROTO(struct device *dev),
+	TP_PROTO(struct regmap *map),
 
-	TP_ARGS(dev),
+	TP_ARGS(map),
 
 	TP_STRUCT__entry(
-		__string(	name,		dev_name(dev)	)
+		__string(	name,		regmap_name(map)	)
 	),
 
 	TP_fast_assign(
-		__assign_str(name, dev_name(dev));
+		__assign_str(name, regmap_name(map));
 	),
 
 	TP_printk("%s", __get_str(name))
@@ -194,50 +193,50 @@ DECLARE_EVENT_CLASS(regmap_async,
 
 DEFINE_EVENT(regmap_block, regmap_async_write_start,
 
-	TP_PROTO(struct device *dev, unsigned int reg, int count),
+	TP_PROTO(struct regmap *map, unsigned int reg, int count),
 
-	TP_ARGS(dev, reg, count)
+	TP_ARGS(map, reg, count)
 );
 
 DEFINE_EVENT(regmap_async, regmap_async_io_complete,
 
-	TP_PROTO(struct device *dev),
+	TP_PROTO(struct regmap *map),
 
-	TP_ARGS(dev)
+	TP_ARGS(map)
 
 );
 
 DEFINE_EVENT(regmap_async, regmap_async_complete_start,
 
-	TP_PROTO(struct device *dev),
+	TP_PROTO(struct regmap *map),
 
-	TP_ARGS(dev)
+	TP_ARGS(map)
 
 );
 
 DEFINE_EVENT(regmap_async, regmap_async_complete_done,
 
-	TP_PROTO(struct device *dev),
+	TP_PROTO(struct regmap *map),
 
-	TP_ARGS(dev)
+	TP_ARGS(map)
 
 );
 
 TRACE_EVENT(regcache_drop_region,
 
-	TP_PROTO(struct device *dev, unsigned int from,
+	TP_PROTO(struct regmap *map, unsigned int from,
 		 unsigned int to),
 
-	TP_ARGS(dev, from, to),
+	TP_ARGS(map, from, to),
 
 	TP_STRUCT__entry(
-		__string(       name,           dev_name(dev)   )
-		__field(	unsigned int,	from		)
-		__field(	unsigned int,	to		)
+		__string(       name,           regmap_name(map)	)
+		__field(	unsigned int,	from			)
+		__field(	unsigned int,	to			)
 	),
 
 	TP_fast_assign(
-		__assign_str(name, dev_name(dev));
+		__assign_str(name, regmap_name(map));
 		__entry->from = from;
 		__entry->to = to;
 	),
@@ -248,5 +247,11 @@ TRACE_EVENT(regcache_drop_region,
 
 #endif /* _TRACE_REGMAP_H */
 
+#undef TRACE_INCLUDE_PATH
+#define TRACE_INCLUDE_PATH .
+
+#undef TRACE_INCLUDE_FILE
+#define TRACE_INCLUDE_FILE trace
+
 /* This part must be outside protection */
 #include <trace/define_trace.h>
diff --git a/drivers/base/soc.c b/drivers/base/soc.c
index 72b5e72..39fca01 100644
--- a/drivers/base/soc.c
+++ b/drivers/base/soc.c
@@ -43,8 +43,8 @@ struct device *soc_device_to_device(struct soc_device *soc_dev)
 }
 
 static umode_t soc_attribute_mode(struct kobject *kobj,
-                                 struct attribute *attr,
-                                 int index)
+				struct attribute *attr,
+				int index)
 {
 	struct device *dev = container_of(kobj, struct device, kobj);
 	struct soc_device *soc_dev = container_of(dev, struct soc_device, dev);
@@ -60,7 +60,7 @@ static umode_t soc_attribute_mode(struct kobject *kobj,
 		return attr->mode;
 	if ((attr == &dev_attr_soc_id.attr)
 	    && (soc_dev->attr->soc_id != NULL))
-	        return attr->mode;
+		return attr->mode;
 
 	/* Unknown or unfilled attribute. */
 	return 0;
@@ -117,7 +117,7 @@ struct soc_device *soc_device_register(struct soc_device_attribute *soc_dev_attr
 
 	soc_dev = kzalloc(sizeof(*soc_dev), GFP_KERNEL);
 	if (!soc_dev) {
-	        ret = -ENOMEM;
+		ret = -ENOMEM;
 		goto out1;
 	}
 
@@ -135,7 +135,7 @@ struct soc_device *soc_device_register(struct soc_device_attribute *soc_dev_attr
 	} while (ret == -EAGAIN);
 
 	if (ret)
-	         goto out2;
+		goto out2;
 
 	soc_dev->attr = soc_dev_attr;
 	soc_dev->dev.bus = &soc_bus_type;
diff --git a/drivers/block/cpqarray.c b/drivers/block/cpqarray.c
index 2b94403..f749df9 100644
--- a/drivers/block/cpqarray.c
+++ b/drivers/block/cpqarray.c
@@ -405,8 +405,8 @@ static int cpqarray_register_ctlr(int i, struct pci_dev *pdev)
 		goto Enomem4;
 	}
 	hba[i]->access.set_intr_mask(hba[i], 0);
-	if (request_irq(hba[i]->intr, do_ida_intr,
-		IRQF_DISABLED|IRQF_SHARED, hba[i]->devname, hba[i]))
+	if (request_irq(hba[i]->intr, do_ida_intr, IRQF_SHARED,
+			hba[i]->devname, hba[i]))
 	{
 		printk(KERN_ERR "cpqarray: Unable to get irq %d for %s\n",
 				hba[i]->intr, hba[i]->devname);
diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c
index 4bc2a5c..a98c41f 100644
--- a/drivers/block/nbd.c
+++ b/drivers/block/nbd.c
@@ -803,10 +803,6 @@ static int __init nbd_init(void)
 		return -EINVAL;
 	}
 
-	nbd_dev = kcalloc(nbds_max, sizeof(*nbd_dev), GFP_KERNEL);
-	if (!nbd_dev)
-		return -ENOMEM;
-
 	part_shift = 0;
 	if (max_part > 0) {
 		part_shift = fls(max_part);
@@ -828,6 +824,10 @@ static int __init nbd_init(void)
 	if (nbds_max > 1UL << (MINORBITS - part_shift))
 		return -EINVAL;
 
+	nbd_dev = kcalloc(nbds_max, sizeof(*nbd_dev), GFP_KERNEL);
+	if (!nbd_dev)
+		return -ENOMEM;
+
 	for (i = 0; i < nbds_max; i++) {
 		struct gendisk *disk = alloc_disk(1 << part_shift);
 		if (!disk)
diff --git a/drivers/block/nvme-core.c b/drivers/block/nvme-core.c
index b64bccb..e23be20 100644
--- a/drivers/block/nvme-core.c
+++ b/drivers/block/nvme-core.c
@@ -482,6 +482,7 @@ static int nvme_error_status(u16 status)
 	}
 }
 
+#ifdef CONFIG_BLK_DEV_INTEGRITY
 static void nvme_dif_prep(u32 p, u32 v, struct t10_pi_tuple *pi)
 {
 	if (be32_to_cpu(pi->ref_tag) == v)
@@ -538,6 +539,58 @@ static void nvme_dif_remap(struct request *req,
 	kunmap_atomic(pmap);
 }
 
+static int nvme_noop_verify(struct blk_integrity_iter *iter)
+{
+	return 0;
+}
+
+static int nvme_noop_generate(struct blk_integrity_iter *iter)
+{
+	return 0;
+}
+
+struct blk_integrity nvme_meta_noop = {
+	.name			= "NVME_META_NOOP",
+	.generate_fn		= nvme_noop_generate,
+	.verify_fn		= nvme_noop_verify,
+};
+
+static void nvme_init_integrity(struct nvme_ns *ns)
+{
+	struct blk_integrity integrity;
+
+	switch (ns->pi_type) {
+	case NVME_NS_DPS_PI_TYPE3:
+		integrity = t10_pi_type3_crc;
+		break;
+	case NVME_NS_DPS_PI_TYPE1:
+	case NVME_NS_DPS_PI_TYPE2:
+		integrity = t10_pi_type1_crc;
+		break;
+	default:
+		integrity = nvme_meta_noop;
+		break;
+	}
+	integrity.tuple_size = ns->ms;
+	blk_integrity_register(ns->disk, &integrity);
+	blk_queue_max_integrity_segments(ns->queue, 1);
+}
+#else /* CONFIG_BLK_DEV_INTEGRITY */
+static void nvme_dif_remap(struct request *req,
+			void (*dif_swap)(u32 p, u32 v, struct t10_pi_tuple *pi))
+{
+}
+static void nvme_dif_prep(u32 p, u32 v, struct t10_pi_tuple *pi)
+{
+}
+static void nvme_dif_complete(u32 p, u32 v, struct t10_pi_tuple *pi)
+{
+}
+static void nvme_init_integrity(struct nvme_ns *ns)
+{
+}
+#endif
+
 static void req_completion(struct nvme_queue *nvmeq, void *ctx,
 						struct nvme_completion *cqe)
 {
@@ -1959,43 +2012,6 @@ static void nvme_config_discard(struct nvme_ns *ns)
 	queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, ns->queue);
 }
 
-static int nvme_noop_verify(struct blk_integrity_iter *iter)
-{
-	return 0;
-}
-
-static int nvme_noop_generate(struct blk_integrity_iter *iter)
-{
-	return 0;
-}
-
-struct blk_integrity nvme_meta_noop = {
-	.name			= "NVME_META_NOOP",
-	.generate_fn		= nvme_noop_generate,
-	.verify_fn		= nvme_noop_verify,
-};
-
-static void nvme_init_integrity(struct nvme_ns *ns)
-{
-	struct blk_integrity integrity;
-
-	switch (ns->pi_type) {
-	case NVME_NS_DPS_PI_TYPE3:
-		integrity = t10_pi_type3_crc;
-		break;
-	case NVME_NS_DPS_PI_TYPE1:
-	case NVME_NS_DPS_PI_TYPE2:
-		integrity = t10_pi_type1_crc;
-		break;
-	default:
-		integrity = nvme_meta_noop;
-		break;
-	}
-	integrity.tuple_size = ns->ms;
-	blk_integrity_register(ns->disk, &integrity);
-	blk_queue_max_integrity_segments(ns->queue, 1);
-}
-
 static int nvme_revalidate_disk(struct gendisk *disk)
 {
 	struct nvme_ns *ns = disk->private_data;
@@ -2036,7 +2052,8 @@ static int nvme_revalidate_disk(struct gendisk *disk)
 	pi_type = ns->ms == sizeof(struct t10_pi_tuple) ?
 					id->dps & NVME_NS_DPS_PI_MASK : 0;
 
-	if (disk->integrity && (ns->pi_type != pi_type || ns->ms != old_ms ||
+	if (blk_get_integrity(disk) && (ns->pi_type != pi_type ||
+				ns->ms != old_ms ||
 				bs != queue_logical_block_size(disk->queue) ||
 				(ns->ms && id->flbas & NVME_NS_FLBAS_META_EXT)))
 		blk_integrity_unregister(disk);
@@ -2044,11 +2061,11 @@ static int nvme_revalidate_disk(struct gendisk *disk)
 	ns->pi_type = pi_type;
 	blk_queue_logical_block_size(ns->queue, bs);
 
-	if (ns->ms && !disk->integrity && (disk->flags & GENHD_FL_UP) &&
+	if (ns->ms && !blk_get_integrity(disk) && (disk->flags & GENHD_FL_UP) &&
 				!(id->flbas & NVME_NS_FLBAS_META_EXT))
 		nvme_init_integrity(ns);
 
-	if (id->ncap == 0 || (ns->ms && !disk->integrity))
+	if (id->ncap == 0 || (ns->ms && !blk_get_integrity(disk)))
 		set_capacity(disk, 0);
 	else
 		set_capacity(disk, le64_to_cpup(&id->nsze) << (ns->lba_shift - 9));
@@ -2652,7 +2669,7 @@ static void nvme_dev_remove(struct nvme_dev *dev)
 
 	list_for_each_entry(ns, &dev->namespaces, list) {
 		if (ns->disk->flags & GENHD_FL_UP) {
-			if (ns->disk->integrity)
+			if (blk_get_integrity(ns->disk))
 				blk_integrity_unregister(ns->disk);
 			del_gendisk(ns->disk);
 		}
@@ -2986,6 +3003,7 @@ static int nvme_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	}
 	get_device(dev->device);
 
+	INIT_LIST_HEAD(&dev->node);
 	INIT_WORK(&dev->probe_work, nvme_async_probe);
 	schedule_work(&dev->probe_work);
 	return 0;
diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c
index 8e233ed..871bd35 100644
--- a/drivers/block/zram/zram_drv.c
+++ b/drivers/block/zram/zram_drv.c
@@ -528,7 +528,7 @@ out_cleanup:
 static inline void update_used_max(struct zram *zram,
 					const unsigned long pages)
 {
-	int old_max, cur_max;
+	unsigned long old_max, cur_max;
 
 	old_max = atomic_long_read(&zram->stats.max_used_pages);
 
diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index b876888..8bfc4c2 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -272,6 +272,7 @@ static const struct usb_device_id blacklist_table[] = {
 	{ USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
 
 	/* Intel Bluetooth devices */
+	{ USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR },
 	{ USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL },
 	{ USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL },
 	{ USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_NEW },
diff --git a/drivers/bus/omap_l3_noc.c b/drivers/bus/omap_l3_noc.c
index 029bc73..11f7982 100644
--- a/drivers/bus/omap_l3_noc.c
+++ b/drivers/bus/omap_l3_noc.c
@@ -284,7 +284,7 @@ static int omap_l3_probe(struct platform_device *pdev)
 	 */
 	l3->debug_irq = platform_get_irq(pdev, 0);
 	ret = devm_request_irq(l3->dev, l3->debug_irq, l3_interrupt_handler,
-			       IRQF_DISABLED, "l3-dbg-irq", l3);
+			       0x0, "l3-dbg-irq", l3);
 	if (ret) {
 		dev_err(l3->dev, "request_irq failed for %d\n",
 			l3->debug_irq);
@@ -293,7 +293,7 @@ static int omap_l3_probe(struct platform_device *pdev)
 
 	l3->app_irq = platform_get_irq(pdev, 1);
 	ret = devm_request_irq(l3->dev, l3->app_irq, l3_interrupt_handler,
-			       IRQF_DISABLED, "l3-app-irq", l3);
+			       0x0, "l3-app-irq", l3);
 	if (ret)
 		dev_err(l3->dev, "request_irq failed for %d\n", l3->app_irq);
 
diff --git a/drivers/bus/omap_l3_smx.c b/drivers/bus/omap_l3_smx.c
index 597fdae..360a5c0 100644
--- a/drivers/bus/omap_l3_smx.c
+++ b/drivers/bus/omap_l3_smx.c
@@ -251,18 +251,16 @@ static int omap3_l3_probe(struct platform_device *pdev)
 	}
 
 	l3->debug_irq = platform_get_irq(pdev, 0);
-	ret = request_irq(l3->debug_irq, omap3_l3_app_irq,
-		IRQF_DISABLED | IRQF_TRIGGER_RISING,
-		"l3-debug-irq", l3);
+	ret = request_irq(l3->debug_irq, omap3_l3_app_irq, IRQF_TRIGGER_RISING,
+			  "l3-debug-irq", l3);
 	if (ret) {
 		dev_err(&pdev->dev, "couldn't request debug irq\n");
 		goto err1;
 	}
 
 	l3->app_irq = platform_get_irq(pdev, 1);
-	ret = request_irq(l3->app_irq, omap3_l3_app_irq,
-		IRQF_DISABLED | IRQF_TRIGGER_RISING,
-		"l3-app-irq", l3);
+	ret = request_irq(l3->app_irq, omap3_l3_app_irq, IRQF_TRIGGER_RISING,
+			  "l3-app-irq", l3);
 	if (ret) {
 		dev_err(&pdev->dev, "couldn't request app irq\n");
 		goto err2;
diff --git a/drivers/char/ipmi/ipmi_powernv.c b/drivers/char/ipmi/ipmi_powernv.c
index 79524ed..8753b0f 100644
--- a/drivers/char/ipmi/ipmi_powernv.c
+++ b/drivers/char/ipmi/ipmi_powernv.c
@@ -125,6 +125,7 @@ static int ipmi_powernv_recv(struct ipmi_smi_powernv *smi)
 	spin_lock_irqsave(&smi->msg_lock, flags);
 
 	if (!smi->cur_msg) {
+		spin_unlock_irqrestore(&smi->msg_lock, flags);
 		pr_warn("no current message?\n");
 		return 0;
 	}
diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c
index f6646ed..518585c 100644
--- a/drivers/char/ipmi/ipmi_si_intf.c
+++ b/drivers/char/ipmi/ipmi_si_intf.c
@@ -263,6 +263,11 @@ struct smi_info {
 	bool supports_event_msg_buff;
 
 	/*
+	 * Can we clear the global enables receive irq bit?
+	 */
+	bool cannot_clear_recv_irq_bit;
+
+	/*
 	 * Did we get an attention that we did not handle?
 	 */
 	bool got_attn;
@@ -461,6 +466,9 @@ static void smi_mod_timer(struct smi_info *smi_info, unsigned long new_val)
  * allocate messages, we just leave them in the BMC and run the system
  * polled until we can allocate some memory.  Once we have some
  * memory, we will re-enable the interrupt.
+ *
+ * Note that we cannot just use disable_irq(), since the interrupt may
+ * be shared.
  */
 static inline bool disable_si_irq(struct smi_info *smi_info)
 {
@@ -549,20 +557,15 @@ static u8 current_global_enables(struct smi_info *smi_info, u8 base,
 
 	if (smi_info->supports_event_msg_buff)
 		enables |= IPMI_BMC_EVT_MSG_BUFF;
-	else
-		enables &= ~IPMI_BMC_EVT_MSG_BUFF;
 
-	if (smi_info->irq && !smi_info->interrupt_disabled)
+	if ((smi_info->irq && !smi_info->interrupt_disabled) ||
+	    smi_info->cannot_clear_recv_irq_bit)
 		enables |= IPMI_BMC_RCV_MSG_INTR;
-	else
-		enables &= ~IPMI_BMC_RCV_MSG_INTR;
 
 	if (smi_info->supports_event_msg_buff &&
 	    smi_info->irq && !smi_info->interrupt_disabled)
 
 		enables |= IPMI_BMC_EVT_MSG_INTR;
-	else
-		enables &= ~IPMI_BMC_EVT_MSG_INTR;
 
 	*irq_on = enables & (IPMI_BMC_EVT_MSG_INTR | IPMI_BMC_RCV_MSG_INTR);
 
@@ -2900,6 +2903,96 @@ static int try_get_dev_id(struct smi_info *smi_info)
 	return rv;
 }
 
+/*
+ * Some BMCs do not support clearing the receive irq bit in the global
+ * enables (even if they don't support interrupts on the BMC).  Check
+ * for this and handle it properly.
+ */
+static void check_clr_rcv_irq(struct smi_info *smi_info)
+{
+	unsigned char         msg[3];
+	unsigned char         *resp;
+	unsigned long         resp_len;
+	int                   rv;
+
+	resp = kmalloc(IPMI_MAX_MSG_LENGTH, GFP_KERNEL);
+	if (!resp) {
+		printk(KERN_WARNING PFX "Out of memory allocating response for"
+		       " global enables command, cannot check recv irq bit"
+		       " handling.\n");
+		return;
+	}
+
+	msg[0] = IPMI_NETFN_APP_REQUEST << 2;
+	msg[1] = IPMI_GET_BMC_GLOBAL_ENABLES_CMD;
+	smi_info->handlers->start_transaction(smi_info->si_sm, msg, 2);
+
+	rv = wait_for_msg_done(smi_info);
+	if (rv) {
+		printk(KERN_WARNING PFX "Error getting response from get"
+		       " global enables command, cannot check recv irq bit"
+		       " handling.\n");
+		goto out;
+	}
+
+	resp_len = smi_info->handlers->get_result(smi_info->si_sm,
+						  resp, IPMI_MAX_MSG_LENGTH);
+
+	if (resp_len < 4 ||
+			resp[0] != (IPMI_NETFN_APP_REQUEST | 1) << 2 ||
+			resp[1] != IPMI_GET_BMC_GLOBAL_ENABLES_CMD   ||
+			resp[2] != 0) {
+		printk(KERN_WARNING PFX "Invalid return from get global"
+		       " enables command, cannot check recv irq bit"
+		       " handling.\n");
+		rv = -EINVAL;
+		goto out;
+	}
+
+	if ((resp[3] & IPMI_BMC_RCV_MSG_INTR) == 0)
+		/* Already clear, should work ok. */
+		goto out;
+
+	msg[0] = IPMI_NETFN_APP_REQUEST << 2;
+	msg[1] = IPMI_SET_BMC_GLOBAL_ENABLES_CMD;
+	msg[2] = resp[3] & ~IPMI_BMC_RCV_MSG_INTR;
+	smi_info->handlers->start_transaction(smi_info->si_sm, msg, 3);
+
+	rv = wait_for_msg_done(smi_info);
+	if (rv) {
+		printk(KERN_WARNING PFX "Error getting response from set"
+		       " global enables command, cannot check recv irq bit"
+		       " handling.\n");
+		goto out;
+	}
+
+	resp_len = smi_info->handlers->get_result(smi_info->si_sm,
+						  resp, IPMI_MAX_MSG_LENGTH);
+
+	if (resp_len < 3 ||
+			resp[0] != (IPMI_NETFN_APP_REQUEST | 1) << 2 ||
+			resp[1] != IPMI_SET_BMC_GLOBAL_ENABLES_CMD) {
+		printk(KERN_WARNING PFX "Invalid return from get global"
+		       " enables command, cannot check recv irq bit"
+		       " handling.\n");
+		rv = -EINVAL;
+		goto out;
+	}
+
+	if (resp[2] != 0) {
+		/*
+		 * An error when setting the event buffer bit means
+		 * clearing the bit is not supported.
+		 */
+		printk(KERN_WARNING PFX "The BMC does not support clearing"
+		       " the recv irq bit, compensating, but the BMC needs to"
+		       " be fixed.\n");
+		smi_info->cannot_clear_recv_irq_bit = true;
+	}
+ out:
+	kfree(resp);
+}
+
 static int try_enable_event_buffer(struct smi_info *smi_info)
 {
 	unsigned char         msg[3];
@@ -3395,6 +3488,8 @@ static int try_smi_init(struct smi_info *new_smi)
 		goto out_err;
 	}
 
+	check_clr_rcv_irq(new_smi);
+
 	setup_oem_data_handler(new_smi);
 	setup_xaction_handlers(new_smi);
 
diff --git a/drivers/char/ipmi/ipmi_ssif.c b/drivers/char/ipmi/ipmi_ssif.c
index f6e378d..f40e3bd 100644
--- a/drivers/char/ipmi/ipmi_ssif.c
+++ b/drivers/char/ipmi/ipmi_ssif.c
@@ -468,11 +468,13 @@ static int ipmi_ssif_thread(void *data)
 		int result;
 
 		/* Wait for something to do */
-		wait_for_completion(&ssif_info->wake_thread);
-		init_completion(&ssif_info->wake_thread);
-
+		result = wait_for_completion_interruptible(
+						&ssif_info->wake_thread);
 		if (ssif_info->stopping)
 			break;
+		if (result == -ERESTARTSYS)
+			continue;
+		init_completion(&ssif_info->wake_thread);
 
 		if (ssif_info->i2c_read_write == I2C_SMBUS_WRITE) {
 			result = i2c_smbus_write_block_data(
diff --git a/drivers/char/tpm/tpm-chip.c b/drivers/char/tpm/tpm-chip.c
index 1d278cc..e096e9c 100644
--- a/drivers/char/tpm/tpm-chip.c
+++ b/drivers/char/tpm/tpm-chip.c
@@ -140,24 +140,24 @@ static int tpm_dev_add_device(struct tpm_chip *chip)
 {
 	int rc;
 
-	rc = device_add(&chip->dev);
+	rc = cdev_add(&chip->cdev, chip->dev.devt, 1);
 	if (rc) {
 		dev_err(&chip->dev,
-			"unable to device_register() %s, major %d, minor %d, err=%d\n",
+			"unable to cdev_add() %s, major %d, minor %d, err=%d\n",
 			chip->devname, MAJOR(chip->dev.devt),
 			MINOR(chip->dev.devt), rc);
 
+		device_unregister(&chip->dev);
 		return rc;
 	}
 
-	rc = cdev_add(&chip->cdev, chip->dev.devt, 1);
+	rc = device_add(&chip->dev);
 	if (rc) {
 		dev_err(&chip->dev,
-			"unable to cdev_add() %s, major %d, minor %d, err=%d\n",
+			"unable to device_register() %s, major %d, minor %d, err=%d\n",
 			chip->devname, MAJOR(chip->dev.devt),
 			MINOR(chip->dev.devt), rc);
 
-		device_unregister(&chip->dev);
 		return rc;
 	}
 
@@ -174,27 +174,17 @@ static void tpm_dev_del_device(struct tpm_chip *chip)
  * tpm_chip_register() - create a character device for the TPM chip
  * @chip: TPM chip to use.
  *
- * Creates a character device for the TPM chip and adds sysfs interfaces for
- * the device, PPI and TCPA. As the last step this function adds the
- * chip to the list of TPM chips available for use.
+ * Creates a character device for the TPM chip and adds sysfs attributes for
+ * the device. As the last step this function adds the chip to the list of TPM
+ * chips available for in-kernel use.
  *
- * NOTE: This function should be only called after the chip initialization
- * is complete.
- *
- * Called from tpm_<specific>.c probe function only for devices
- * the driver has determined it should claim.  Prior to calling
- * this function the specific probe function has called pci_enable_device
- * upon errant exit from this function specific probe function should call
- * pci_disable_device
+ * This function should be only called after the chip initialization is
+ * complete.
  */
 int tpm_chip_register(struct tpm_chip *chip)
 {
 	int rc;
 
-	rc = tpm_dev_add_device(chip);
-	if (rc)
-		return rc;
-
 	/* Populate sysfs for TPM1 devices. */
 	if (!(chip->flags & TPM_CHIP_FLAG_TPM2)) {
 		rc = tpm_sysfs_add_device(chip);
@@ -208,6 +198,10 @@ int tpm_chip_register(struct tpm_chip *chip)
 		chip->bios_dir = tpm_bios_log_setup(chip->devname);
 	}
 
+	rc = tpm_dev_add_device(chip);
+	if (rc)
+		return rc;
+
 	/* Make the chip available. */
 	spin_lock(&driver_lock);
 	list_add_rcu(&chip->list, &tpm_chip_list);
diff --git a/drivers/char/tpm/tpm_ibmvtpm.c b/drivers/char/tpm/tpm_ibmvtpm.c
index b1e53e3..42ffa5e7 100644
--- a/drivers/char/tpm/tpm_ibmvtpm.c
+++ b/drivers/char/tpm/tpm_ibmvtpm.c
@@ -124,7 +124,7 @@ static int tpm_ibmvtpm_send(struct tpm_chip *chip, u8 *buf, size_t count)
 {
 	struct ibmvtpm_dev *ibmvtpm;
 	struct ibmvtpm_crq crq;
-	u64 *word = (u64 *) &crq;
+	__be64 *word = (__be64 *)&crq;
 	int rc;
 
 	ibmvtpm = (struct ibmvtpm_dev *)TPM_VPRIV(chip);
@@ -145,11 +145,11 @@ static int tpm_ibmvtpm_send(struct tpm_chip *chip, u8 *buf, size_t count)
 	memcpy((void *)ibmvtpm->rtce_buf, (void *)buf, count);
 	crq.valid = (u8)IBMVTPM_VALID_CMD;
 	crq.msg = (u8)VTPM_TPM_COMMAND;
-	crq.len = (u16)count;
-	crq.data = ibmvtpm->rtce_dma_handle;
+	crq.len = cpu_to_be16(count);
+	crq.data = cpu_to_be32(ibmvtpm->rtce_dma_handle);
 
-	rc = ibmvtpm_send_crq(ibmvtpm->vdev, cpu_to_be64(word[0]),
-			      cpu_to_be64(word[1]));
+	rc = ibmvtpm_send_crq(ibmvtpm->vdev, be64_to_cpu(word[0]),
+			      be64_to_cpu(word[1]));
 	if (rc != H_SUCCESS) {
 		dev_err(ibmvtpm->dev, "tpm_ibmvtpm_send failed rc=%d\n", rc);
 		rc = 0;
diff --git a/drivers/char/tpm/tpm_ibmvtpm.h b/drivers/char/tpm/tpm_ibmvtpm.h
index f595f14..6af9289 100644
--- a/drivers/char/tpm/tpm_ibmvtpm.h
+++ b/drivers/char/tpm/tpm_ibmvtpm.h
@@ -22,9 +22,9 @@
 struct ibmvtpm_crq {
 	u8 valid;
 	u8 msg;
-	u16 len;
-	u32 data;
-	u64 reserved;
+	__be16 len;
+	__be32 data;
+	__be64 reserved;
 } __attribute__((packed, aligned(8)));
 
 struct ibmvtpm_crq_queue {
diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c
index fae2dbb..72d7028 100644
--- a/drivers/char/virtio_console.c
+++ b/drivers/char/virtio_console.c
@@ -142,6 +142,7 @@ struct ports_device {
 	 * notification
 	 */
 	struct work_struct control_work;
+	struct work_struct config_work;
 
 	struct list_head ports;
 
@@ -1837,10 +1838,21 @@ static void config_intr(struct virtio_device *vdev)
 
 	portdev = vdev->priv;
 
+	if (!use_multiport(portdev))
+		schedule_work(&portdev->config_work);
+}
+
+static void config_work_handler(struct work_struct *work)
+{
+	struct ports_device *portdev;
+
+	portdev = container_of(work, struct ports_device, control_work);
 	if (!use_multiport(portdev)) {
+		struct virtio_device *vdev;
 		struct port *port;
 		u16 rows, cols;
 
+		vdev = portdev->vdev;
 		virtio_cread(vdev, struct virtio_console_config, cols, &cols);
 		virtio_cread(vdev, struct virtio_console_config, rows, &rows);
 
@@ -2040,12 +2052,14 @@ static int virtcons_probe(struct virtio_device *vdev)
 
 	virtio_device_ready(portdev->vdev);
 
+	INIT_WORK(&portdev->config_work, &config_work_handler);
+	INIT_WORK(&portdev->control_work, &control_work_handler);
+
 	if (multiport) {
 		unsigned int nr_added_bufs;
 
 		spin_lock_init(&portdev->c_ivq_lock);
 		spin_lock_init(&portdev->c_ovq_lock);
-		INIT_WORK(&portdev->control_work, &control_work_handler);
 
 		nr_added_bufs = fill_queue(portdev->c_ivq,
 					   &portdev->c_ivq_lock);
@@ -2113,6 +2127,8 @@ static void virtcons_remove(struct virtio_device *vdev)
 	/* Finish up work that's lined up */
 	if (use_multiport(portdev))
 		cancel_work_sync(&portdev->control_work);
+	else
+		cancel_work_sync(&portdev->config_work);
 
 	list_for_each_entry_safe(port, port2, &portdev->ports, list)
 		unplug_port(port);
@@ -2164,6 +2180,7 @@ static int virtcons_freeze(struct virtio_device *vdev)
 
 	virtqueue_disable_cb(portdev->c_ivq);
 	cancel_work_sync(&portdev->control_work);
+	cancel_work_sync(&portdev->config_work);
 	/*
 	 * Once more: if control_work_handler() was running, it would
 	 * enable the cb as the last step.
diff --git a/drivers/clk/at91/pmc.c b/drivers/clk/at91/pmc.c
index f07c815..3f27d21 100644
--- a/drivers/clk/at91/pmc.c
+++ b/drivers/clk/at91/pmc.c
@@ -89,12 +89,29 @@ static int pmc_irq_set_type(struct irq_data *d, unsigned type)
 	return 0;
 }
 
+static void pmc_irq_suspend(struct irq_data *d)
+{
+	struct at91_pmc *pmc = irq_data_get_irq_chip_data(d);
+
+	pmc->imr = pmc_read(pmc, AT91_PMC_IMR);
+	pmc_write(pmc, AT91_PMC_IDR, pmc->imr);
+}
+
+static void pmc_irq_resume(struct irq_data *d)
+{
+	struct at91_pmc *pmc = irq_data_get_irq_chip_data(d);
+
+	pmc_write(pmc, AT91_PMC_IER, pmc->imr);
+}
+
 static struct irq_chip pmc_irq = {
 	.name = "PMC",
 	.irq_disable = pmc_irq_mask,
 	.irq_mask = pmc_irq_mask,
 	.irq_unmask = pmc_irq_unmask,
 	.irq_set_type = pmc_irq_set_type,
+	.irq_suspend = pmc_irq_suspend,
+	.irq_resume = pmc_irq_resume,
 };
 
 static struct lock_class_key pmc_lock_class;
@@ -224,7 +241,8 @@ static struct at91_pmc *__init at91_pmc_init(struct device_node *np,
 		goto out_free_pmc;
 
 	pmc_write(pmc, AT91_PMC_IDR, 0xffffffff);
-	if (request_irq(pmc->virq, pmc_irq_handler, IRQF_SHARED, "pmc", pmc))
+	if (request_irq(pmc->virq, pmc_irq_handler,
+			IRQF_SHARED | IRQF_COND_SUSPEND, "pmc", pmc))
 		goto out_remove_irqdomain;
 
 	return pmc;
diff --git a/drivers/clk/at91/pmc.h b/drivers/clk/at91/pmc.h
index 52d2041..69abb08 100644
--- a/drivers/clk/at91/pmc.h
+++ b/drivers/clk/at91/pmc.h
@@ -33,6 +33,7 @@ struct at91_pmc {
 	spinlock_t lock;
 	const struct at91_pmc_caps *caps;
 	struct irq_domain *irqdomain;
+	u32 imr;
 };
 
 static inline void pmc_lock(struct at91_pmc *pmc)
diff --git a/drivers/clk/clk-divider.c b/drivers/clk/clk-divider.c
index db7f8bc..25006a8 100644
--- a/drivers/clk/clk-divider.c
+++ b/drivers/clk/clk-divider.c
@@ -144,12 +144,6 @@ static unsigned long clk_divider_recalc_rate(struct clk_hw *hw,
 				   divider->flags);
 }
 
-/*
- * The reverse of DIV_ROUND_UP: The maximum number which
- * divided by m is r
- */
-#define MULT_ROUND_UP(r, m) ((r) * (m) + (m) - 1)
-
 static bool _is_valid_table_div(const struct clk_div_table *table,
 							 unsigned int div)
 {
@@ -225,19 +219,24 @@ static int _div_round_closest(const struct clk_div_table *table,
 			      unsigned long parent_rate, unsigned long rate,
 			      unsigned long flags)
 {
-	int up, down, div;
+	int up, down;
+	unsigned long up_rate, down_rate;
 
-	up = down = div = DIV_ROUND_CLOSEST(parent_rate, rate);
+	up = DIV_ROUND_UP(parent_rate, rate);
+	down = parent_rate / rate;
 
 	if (flags & CLK_DIVIDER_POWER_OF_TWO) {
-		up = __roundup_pow_of_two(div);
-		down = __rounddown_pow_of_two(div);
+		up = __roundup_pow_of_two(up);
+		down = __rounddown_pow_of_two(down);
 	} else if (table) {
-		up = _round_up_table(table, div);
-		down = _round_down_table(table, div);
+		up = _round_up_table(table, up);
+		down = _round_down_table(table, down);
 	}
 
-	return (up - div) <= (div - down) ? up : down;
+	up_rate = DIV_ROUND_UP(parent_rate, up);
+	down_rate = DIV_ROUND_UP(parent_rate, down);
+
+	return (rate - up_rate) <= (down_rate - rate) ? up : down;
 }
 
 static int _div_round(const struct clk_div_table *table,
@@ -313,7 +312,7 @@ static int clk_divider_bestdiv(struct clk_hw *hw, unsigned long rate,
 			return i;
 		}
 		parent_rate = __clk_round_rate(__clk_get_parent(hw->clk),
-				MULT_ROUND_UP(rate, i));
+					       rate * i);
 		now = DIV_ROUND_UP(parent_rate, i);
 		if (_is_best_div(rate, now, best, flags)) {
 			bestdiv = i;
@@ -353,7 +352,7 @@ static long clk_divider_round_rate(struct clk_hw *hw, unsigned long rate,
 		bestdiv = readl(divider->reg) >> divider->shift;
 		bestdiv &= div_mask(divider->width);
 		bestdiv = _get_div(divider->table, bestdiv, divider->flags);
-		return bestdiv;
+		return DIV_ROUND_UP(*prate, bestdiv);
 	}
 
 	return divider_round_rate(hw, rate, prate, divider->table,
diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
index eb01529..237f23f 100644
--- a/drivers/clk/clk.c
+++ b/drivers/clk/clk.c
@@ -1350,7 +1350,6 @@ static unsigned long clk_core_get_rate(struct clk_core *clk)
 
 	return rate;
 }
-EXPORT_SYMBOL_GPL(clk_core_get_rate);
 
 /**
  * clk_get_rate - return the rate of clk
@@ -2171,6 +2170,32 @@ int clk_get_phase(struct clk *clk)
 }
 
 /**
+ * clk_is_match - check if two clk's point to the same hardware clock
+ * @p: clk compared against q
+ * @q: clk compared against p
+ *
+ * Returns true if the two struct clk pointers both point to the same hardware
+ * clock node. Put differently, returns true if struct clk *p and struct clk *q
+ * share the same struct clk_core object.
+ *
+ * Returns false otherwise. Note that two NULL clks are treated as matching.
+ */
+bool clk_is_match(const struct clk *p, const struct clk *q)
+{
+	/* trivial case: identical struct clk's or both NULL */
+	if (p == q)
+		return true;
+
+	/* true if clk->core pointers match. Avoid derefing garbage */
+	if (!IS_ERR_OR_NULL(p) && !IS_ERR_OR_NULL(q))
+		if (p->core == q->core)
+			return true;
+
+	return false;
+}
+EXPORT_SYMBOL_GPL(clk_is_match);
+
+/**
  * __clk_init - initialize the data structures in a struct clk
  * @dev:	device initializing this clk, placeholder for now
  * @clk:	clk being initialized
diff --git a/drivers/clk/qcom/gcc-msm8960.c b/drivers/clk/qcom/gcc-msm8960.c
index b0b562b..e60feff 100644
--- a/drivers/clk/qcom/gcc-msm8960.c
+++ b/drivers/clk/qcom/gcc-msm8960.c
@@ -48,6 +48,17 @@ static struct clk_pll pll3 = {
 	},
 };
 
+static struct clk_regmap pll4_vote = {
+	.enable_reg = 0x34c0,
+	.enable_mask = BIT(4),
+	.hw.init = &(struct clk_init_data){
+		.name = "pll4_vote",
+		.parent_names = (const char *[]){ "pll4" },
+		.num_parents = 1,
+		.ops = &clk_pll_vote_ops,
+	},
+};
+
 static struct clk_pll pll8 = {
 	.l_reg = 0x3144,
 	.m_reg = 0x3148,
@@ -3023,6 +3034,7 @@ static struct clk_branch rpm_msg_ram_h_clk = {
 
 static struct clk_regmap *gcc_msm8960_clks[] = {
 	[PLL3] = &pll3.clkr,
+	[PLL4_VOTE] = &pll4_vote,
 	[PLL8] = &pll8.clkr,
 	[PLL8_VOTE] = &pll8_vote,
 	[PLL14] = &pll14.clkr,
@@ -3247,6 +3259,7 @@ static const struct qcom_reset_map gcc_msm8960_resets[] = {
 
 static struct clk_regmap *gcc_apq8064_clks[] = {
 	[PLL3] = &pll3.clkr,
+	[PLL4_VOTE] = &pll4_vote,
 	[PLL8] = &pll8.clkr,
 	[PLL8_VOTE] = &pll8_vote,
 	[PLL14] = &pll14.clkr,
diff --git a/drivers/clk/qcom/lcc-ipq806x.c b/drivers/clk/qcom/lcc-ipq806x.c
index 121ffde..c9ff27b 100644
--- a/drivers/clk/qcom/lcc-ipq806x.c
+++ b/drivers/clk/qcom/lcc-ipq806x.c
@@ -462,7 +462,6 @@ static struct platform_driver lcc_ipq806x_driver = {
 	.remove		= lcc_ipq806x_remove,
 	.driver		= {
 		.name	= "lcc-ipq806x",
-		.owner	= THIS_MODULE,
 		.of_match_table = lcc_ipq806x_match_table,
 	},
 };
diff --git a/drivers/clk/qcom/lcc-msm8960.c b/drivers/clk/qcom/lcc-msm8960.c
index a75a408..e2c8632 100644
--- a/drivers/clk/qcom/lcc-msm8960.c
+++ b/drivers/clk/qcom/lcc-msm8960.c
@@ -417,8 +417,8 @@ static struct clk_rcg slimbus_src = {
 		.mnctr_en_bit = 8,
 		.mnctr_reset_bit = 7,
 		.mnctr_mode_shift = 5,
-		.n_val_shift = 16,
-		.m_val_shift = 16,
+		.n_val_shift = 24,
+		.m_val_shift = 8,
 		.width = 8,
 	},
 	.p = {
@@ -547,7 +547,7 @@ static int lcc_msm8960_probe(struct platform_device *pdev)
 		return PTR_ERR(regmap);
 
 	/* Use the correct frequency plan depending on speed of PLL4 */
-	val = regmap_read(regmap, 0x4, &val);
+	regmap_read(regmap, 0x4, &val);
 	if (val == 0x12) {
 		slimbus_src.freq_tbl = clk_tbl_aif_osr_492;
 		mi2s_osr_src.freq_tbl = clk_tbl_aif_osr_492;
@@ -574,7 +574,6 @@ static struct platform_driver lcc_msm8960_driver = {
 	.remove		= lcc_msm8960_remove,
 	.driver		= {
 		.name	= "lcc-msm8960",
-		.owner	= THIS_MODULE,
 		.of_match_table = lcc_msm8960_match_table,
 	},
 };
diff --git a/drivers/clk/ti/fapll.c b/drivers/clk/ti/fapll.c
index 6ef8963..d216406 100644
--- a/drivers/clk/ti/fapll.c
+++ b/drivers/clk/ti/fapll.c
@@ -84,7 +84,7 @@ static int ti_fapll_enable(struct clk_hw *hw)
 	struct fapll_data *fd = to_fapll(hw);
 	u32 v = readl_relaxed(fd->base);
 
-	v |= (1 << FAPLL_MAIN_PLLEN);
+	v |= FAPLL_MAIN_PLLEN;
 	writel_relaxed(v, fd->base);
 
 	return 0;
@@ -95,7 +95,7 @@ static void ti_fapll_disable(struct clk_hw *hw)
 	struct fapll_data *fd = to_fapll(hw);
 	u32 v = readl_relaxed(fd->base);
 
-	v &= ~(1 << FAPLL_MAIN_PLLEN);
+	v &= ~FAPLL_MAIN_PLLEN;
 	writel_relaxed(v, fd->base);
 }
 
@@ -104,7 +104,7 @@ static int ti_fapll_is_enabled(struct clk_hw *hw)
 	struct fapll_data *fd = to_fapll(hw);
 	u32 v = readl_relaxed(fd->base);
 
-	return v & (1 << FAPLL_MAIN_PLLEN);
+	return v & FAPLL_MAIN_PLLEN;
 }
 
 static unsigned long ti_fapll_recalc_rate(struct clk_hw *hw,
diff --git a/drivers/clocksource/Kconfig b/drivers/clocksource/Kconfig
index 1c2506f..a0b036c 100644
--- a/drivers/clocksource/Kconfig
+++ b/drivers/clocksource/Kconfig
@@ -63,6 +63,11 @@ config VT8500_TIMER
 config CADENCE_TTC_TIMER
 	bool
 
+config ASM9260_TIMER
+	bool
+	select CLKSRC_MMIO
+	select CLKSRC_OF
+
 config CLKSRC_NOMADIK_MTU
 	bool
 	depends on (ARCH_NOMADIK || ARCH_U8500)
@@ -187,6 +192,7 @@ config SYS_SUPPORTS_EM_STI
 config SH_TIMER_CMT
 	bool "Renesas CMT timer driver" if COMPILE_TEST
 	depends on GENERIC_CLOCKEVENTS
+	depends on HAS_IOMEM
 	default SYS_SUPPORTS_SH_CMT
 	help
 	  This enables build of a clocksource and clockevent driver for
@@ -196,6 +202,7 @@ config SH_TIMER_CMT
 config SH_TIMER_MTU2
 	bool "Renesas MTU2 timer driver" if COMPILE_TEST
 	depends on GENERIC_CLOCKEVENTS
+	depends on HAS_IOMEM
 	default SYS_SUPPORTS_SH_MTU2
 	help
 	  This enables build of a clockevent driver for the Multi-Function
@@ -205,6 +212,7 @@ config SH_TIMER_MTU2
 config SH_TIMER_TMU
 	bool "Renesas TMU timer driver" if COMPILE_TEST
 	depends on GENERIC_CLOCKEVENTS
+	depends on HAS_IOMEM
 	default SYS_SUPPORTS_SH_TMU
 	help
 	  This enables build of a clocksource and clockevent driver for
@@ -245,15 +253,4 @@ config CLKSRC_PXA
 	help
 	  This enables OST0 support available on PXA and SA-11x0
 	  platforms.
-
-config ASM9260_TIMER
-	bool "Alphascale ASM9260 timer driver"
-	depends on GENERIC_CLOCKEVENTS
-	select CLKSRC_MMIO
-	select CLKSRC_OF
-	default y if MACH_ASM9260
-	help
-	  This enables build of a clocksource and clockevent driver for
-	  the 32-bit System Timer hardware available on a Alphascale ASM9260.
-
 endmenu
diff --git a/drivers/clocksource/arm_arch_timer.c b/drivers/clocksource/arm_arch_timer.c
index a3025e7..2664696 100644
--- a/drivers/clocksource/arm_arch_timer.c
+++ b/drivers/clocksource/arm_arch_timer.c
@@ -661,17 +661,17 @@ static const struct of_device_id arch_timer_mem_of_match[] __initconst = {
 };
 
 static bool __init
-arch_timer_probed(int type, const struct of_device_id *matches)
+arch_timer_needs_probing(int type, const struct of_device_id *matches)
 {
 	struct device_node *dn;
-	bool probed = true;
+	bool needs_probing = false;
 
 	dn = of_find_matching_node(NULL, matches);
 	if (dn && of_device_is_available(dn) && !(arch_timers_present & type))
-		probed = false;
+		needs_probing = true;
 	of_node_put(dn);
 
-	return probed;
+	return needs_probing;
 }
 
 static void __init arch_timer_common_init(void)
@@ -680,9 +680,9 @@ static void __init arch_timer_common_init(void)
 
 	/* Wait until both nodes are probed if we have two timers */
 	if ((arch_timers_present & mask) != mask) {
-		if (!arch_timer_probed(ARCH_MEM_TIMER, arch_timer_mem_of_match))
+		if (arch_timer_needs_probing(ARCH_MEM_TIMER, arch_timer_mem_of_match))
 			return;
-		if (!arch_timer_probed(ARCH_CP15_TIMER, arch_timer_of_match))
+		if (arch_timer_needs_probing(ARCH_CP15_TIMER, arch_timer_of_match))
 			return;
 	}
 
diff --git a/drivers/clocksource/dw_apb_timer_of.c b/drivers/clocksource/dw_apb_timer_of.c
index d305fb0..a19a3f6 100644
--- a/drivers/clocksource/dw_apb_timer_of.c
+++ b/drivers/clocksource/dw_apb_timer_of.c
@@ -108,7 +108,7 @@ static void __init add_clocksource(struct device_node *source_timer)
 
 static u64 notrace read_sched_clock(void)
 {
-	return ~__raw_readl(sched_io_base);
+	return ~readl_relaxed(sched_io_base);
 }
 
 static const struct of_device_id sptimer_ids[] __initconst = {
diff --git a/drivers/clocksource/em_sti.c b/drivers/clocksource/em_sti.c
index d0a7bd6..dc3c6ee 100644
--- a/drivers/clocksource/em_sti.c
+++ b/drivers/clocksource/em_sti.c
@@ -210,7 +210,7 @@ static int em_sti_clocksource_enable(struct clocksource *cs)
 
 	ret = em_sti_start(p, USER_CLOCKSOURCE);
 	if (!ret)
-		__clocksource_updatefreq_hz(cs, p->rate);
+		__clocksource_update_freq_hz(cs, p->rate);
 	return ret;
 }
 
diff --git a/drivers/clocksource/mtk_timer.c b/drivers/clocksource/mtk_timer.c
index 32a3d25..68ab423 100644
--- a/drivers/clocksource/mtk_timer.c
+++ b/drivers/clocksource/mtk_timer.c
@@ -224,6 +224,8 @@ static void __init mtk_timer_init(struct device_node *node)
 	}
 	rate = clk_get_rate(clk);
 
+	mtk_timer_global_reset(evt);
+
 	if (request_irq(evt->dev.irq, mtk_timer_interrupt,
 			IRQF_TIMER | IRQF_IRQPOLL, "mtk_timer", evt)) {
 		pr_warn("failed to setup irq %d\n", evt->dev.irq);
@@ -232,8 +234,6 @@ static void __init mtk_timer_init(struct device_node *node)
 
 	evt->ticks_per_jiffy = DIV_ROUND_UP(rate, HZ);
 
-	mtk_timer_global_reset(evt);
-
 	/* Configure clock source */
 	mtk_timer_setup(evt, GPT_CLK_SRC, TIMER_CTRL_OP_FREERUN);
 	clocksource_mmio_init(evt->gpt_base + TIMER_CNT_REG(GPT_CLK_SRC),
@@ -241,10 +241,11 @@ static void __init mtk_timer_init(struct device_node *node)
 
 	/* Configure clock event */
 	mtk_timer_setup(evt, GPT_CLK_EVT, TIMER_CTRL_OP_REPEAT);
-	mtk_timer_enable_irq(evt, GPT_CLK_EVT);
-
 	clockevents_config_and_register(&evt->dev, rate, 0x3,
 					0xffffffff);
+
+	mtk_timer_enable_irq(evt, GPT_CLK_EVT);
+
 	return;
 
 err_clk_disable:
diff --git a/drivers/clocksource/pxa_timer.c b/drivers/clocksource/pxa_timer.c
index 941f3f3..d9438af 100644
--- a/drivers/clocksource/pxa_timer.c
+++ b/drivers/clocksource/pxa_timer.c
@@ -163,7 +163,7 @@ static struct irqaction pxa_ost0_irq = {
 	.dev_id		= &ckevt_pxa_osmr0,
 };
 
-static void pxa_timer_common_init(int irq, unsigned long clock_tick_rate)
+static void __init pxa_timer_common_init(int irq, unsigned long clock_tick_rate)
 {
 	timer_writel(0, OIER);
 	timer_writel(OSSR_M0 | OSSR_M1 | OSSR_M2 | OSSR_M3, OSSR);
diff --git a/drivers/clocksource/sh_cmt.c b/drivers/clocksource/sh_cmt.c
index 2bd13b5..b8ff3c6 100644
--- a/drivers/clocksource/sh_cmt.c
+++ b/drivers/clocksource/sh_cmt.c
@@ -641,7 +641,7 @@ static int sh_cmt_clocksource_enable(struct clocksource *cs)
 
 	ret = sh_cmt_start(ch, FLAG_CLOCKSOURCE);
 	if (!ret) {
-		__clocksource_updatefreq_hz(cs, ch->rate);
+		__clocksource_update_freq_hz(cs, ch->rate);
 		ch->cs_enabled = true;
 	}
 	return ret;
diff --git a/drivers/clocksource/sh_tmu.c b/drivers/clocksource/sh_tmu.c
index f150ca82..b6b8fa3 100644
--- a/drivers/clocksource/sh_tmu.c
+++ b/drivers/clocksource/sh_tmu.c
@@ -272,7 +272,7 @@ static int sh_tmu_clocksource_enable(struct clocksource *cs)
 
 	ret = sh_tmu_enable(ch);
 	if (!ret) {
-		__clocksource_updatefreq_hz(cs, ch->rate);
+		__clocksource_update_freq_hz(cs, ch->rate);
 		ch->cs_enabled = true;
 	}
 
diff --git a/drivers/clocksource/sun4i_timer.c b/drivers/clocksource/sun4i_timer.c
index f4a9c00..1928a89 100644
--- a/drivers/clocksource/sun4i_timer.c
+++ b/drivers/clocksource/sun4i_timer.c
@@ -170,7 +170,15 @@ static void __init sun4i_timer_init(struct device_node *node)
 	       TIMER_CTL_CLK_SRC(TIMER_CTL_CLK_SRC_OSC24M),
 	       timer_base + TIMER_CTL_REG(1));
 
-	sched_clock_register(sun4i_timer_sched_read, 32, rate);
+	/*
+	 * sched_clock_register does not have priorities, and on sun6i and
+	 * later there is a better sched_clock registered by arm_arch_timer.c
+	 */
+	if (of_machine_is_compatible("allwinner,sun4i-a10") ||
+	    of_machine_is_compatible("allwinner,sun5i-a13") ||
+	    of_machine_is_compatible("allwinner,sun5i-a10s"))
+		sched_clock_register(sun4i_timer_sched_read, 32, rate);
+
 	clocksource_mmio_init(timer_base + TIMER_CNTVAL_REG(1), node->name,
 			      rate, 350, 32, clocksource_mmio_readl_down);
 
diff --git a/drivers/clocksource/tegra20_timer.c b/drivers/clocksource/tegra20_timer.c
index d2616ef..5a112d7 100644
--- a/drivers/clocksource/tegra20_timer.c
+++ b/drivers/clocksource/tegra20_timer.c
@@ -51,15 +51,15 @@
 static void __iomem *timer_reg_base;
 static void __iomem *rtc_base;
 
-static struct timespec persistent_ts;
+static struct timespec64 persistent_ts;
 static u64 persistent_ms, last_persistent_ms;
 
 static struct delay_timer tegra_delay_timer;
 
 #define timer_writel(value, reg) \
-	__raw_writel(value, timer_reg_base + (reg))
+	writel_relaxed(value, timer_reg_base + (reg))
 #define timer_readl(reg) \
-	__raw_readl(timer_reg_base + (reg))
+	readl_relaxed(timer_reg_base + (reg))
 
 static int tegra_timer_set_next_event(unsigned long cycles,
 					 struct clock_event_device *evt)
@@ -120,26 +120,25 @@ static u64 tegra_rtc_read_ms(void)
 }
 
 /*
- * tegra_read_persistent_clock -  Return time from a persistent clock.
+ * tegra_read_persistent_clock64 -  Return time from a persistent clock.
  *
  * Reads the time from a source which isn't disabled during PM, the
  * 32k sync timer.  Convert the cycles elapsed since last read into
- * nsecs and adds to a monotonically increasing timespec.
+ * nsecs and adds to a monotonically increasing timespec64.
  * Care must be taken that this funciton is not called while the
  * tegra_rtc driver could be executing to avoid race conditions
  * on the RTC shadow register
  */
-static void tegra_read_persistent_clock(struct timespec *ts)
+static void tegra_read_persistent_clock64(struct timespec64 *ts)
 {
 	u64 delta;
-	struct timespec *tsp = &persistent_ts;
 
 	last_persistent_ms = persistent_ms;
 	persistent_ms = tegra_rtc_read_ms();
 	delta = persistent_ms - last_persistent_ms;
 
-	timespec_add_ns(tsp, delta * NSEC_PER_MSEC);
-	*ts = *tsp;
+	timespec64_add_ns(&persistent_ts, delta * NSEC_PER_MSEC);
+	*ts = persistent_ts;
 }
 
 static unsigned long tegra_delay_timer_read_counter_long(void)
@@ -252,7 +251,7 @@ static void __init tegra20_init_rtc(struct device_node *np)
 	else
 		clk_prepare_enable(clk);
 
-	register_persistent_clock(NULL, tegra_read_persistent_clock);
+	register_persistent_clock(NULL, tegra_read_persistent_clock64);
 }
 CLOCKSOURCE_OF_DECLARE(tegra20_rtc, "nvidia,tegra20-rtc", tegra20_init_rtc);
 
diff --git a/drivers/clocksource/time-efm32.c b/drivers/clocksource/time-efm32.c
index bba62f9..5b6e3d5 100644
--- a/drivers/clocksource/time-efm32.c
+++ b/drivers/clocksource/time-efm32.c
@@ -111,7 +111,7 @@ static irqreturn_t efm32_clock_event_handler(int irq, void *dev_id)
 static struct efm32_clock_event_ddata clock_event_ddata = {
 	.evtdev = {
 		.name = "efm32 clockevent",
-		.features = CLOCK_EVT_FEAT_ONESHOT | CLOCK_EVT_MODE_PERIODIC,
+		.features = CLOCK_EVT_FEAT_ONESHOT | CLOCK_EVT_FEAT_PERIODIC,
 		.set_mode = efm32_clock_event_set_mode,
 		.set_next_event = efm32_clock_event_set_next_event,
 		.rating = 200,
@@ -225,12 +225,12 @@ static int __init efm32_clockevent_init(struct device_node *np)
 	clock_event_ddata.base = base;
 	clock_event_ddata.periodic_top = DIV_ROUND_CLOSEST(rate, 1024 * HZ);
 
-	setup_irq(irq, &efm32_clock_event_irq);
-
 	clockevents_config_and_register(&clock_event_ddata.evtdev,
 					DIV_ROUND_CLOSEST(rate, 1024),
 					0xf, 0xffff);
 
+	setup_irq(irq, &efm32_clock_event_irq);
+
 	return 0;
 
 err_get_irq:
diff --git a/drivers/clocksource/timer-atmel-pit.c b/drivers/clocksource/timer-atmel-pit.c
index b5b4d45..c0304ff 100644
--- a/drivers/clocksource/timer-atmel-pit.c
+++ b/drivers/clocksource/timer-atmel-pit.c
@@ -61,12 +61,12 @@ static inline struct pit_data *clkevt_to_pit_data(struct clock_event_device *clk
 
 static inline unsigned int pit_read(void __iomem *base, unsigned int reg_offset)
 {
-	return __raw_readl(base + reg_offset);
+	return readl_relaxed(base + reg_offset);
 }
 
 static inline void pit_write(void __iomem *base, unsigned int reg_offset, unsigned long value)
 {
-	__raw_writel(value, base + reg_offset);
+	writel_relaxed(value, base + reg_offset);
 }
 
 /*
diff --git a/drivers/clocksource/timer-sun5i.c b/drivers/clocksource/timer-sun5i.c
index 0226844..28aa4b7 100644
--- a/drivers/clocksource/timer-sun5i.c
+++ b/drivers/clocksource/timer-sun5i.c
@@ -17,7 +17,7 @@
 #include <linux/irq.h>
 #include <linux/irqreturn.h>
 #include <linux/reset.h>
-#include <linux/sched_clock.h>
+#include <linux/slab.h>
 #include <linux/of.h>
 #include <linux/of_address.h>
 #include <linux/of_irq.h>
@@ -37,8 +37,31 @@
 
 #define TIMER_SYNC_TICKS	3
 
-static void __iomem *timer_base;
-static u32 ticks_per_jiffy;
+struct sun5i_timer {
+	void __iomem		*base;
+	struct clk		*clk;
+	struct notifier_block	clk_rate_cb;
+	u32			ticks_per_jiffy;
+};
+
+#define to_sun5i_timer(x) \
+	container_of(x, struct sun5i_timer, clk_rate_cb)
+
+struct sun5i_timer_clksrc {
+	struct sun5i_timer	timer;
+	struct clocksource	clksrc;
+};
+
+#define to_sun5i_timer_clksrc(x) \
+	container_of(x, struct sun5i_timer_clksrc, clksrc)
+
+struct sun5i_timer_clkevt {
+	struct sun5i_timer		timer;
+	struct clock_event_device	clkevt;
+};
+
+#define to_sun5i_timer_clkevt(x) \
+	container_of(x, struct sun5i_timer_clkevt, clkevt)
 
 /*
  * When we disable a timer, we need to wait at least for 2 cycles of
@@ -46,30 +69,30 @@ static u32 ticks_per_jiffy;
  * that is already setup and runs at the same frequency than the other
  * timers, and we never will be disabled.
  */
-static void sun5i_clkevt_sync(void)
+static void sun5i_clkevt_sync(struct sun5i_timer_clkevt *ce)
 {
-	u32 old = readl(timer_base + TIMER_CNTVAL_LO_REG(1));
+	u32 old = readl(ce->timer.base + TIMER_CNTVAL_LO_REG(1));
 
-	while ((old - readl(timer_base + TIMER_CNTVAL_LO_REG(1))) < TIMER_SYNC_TICKS)
+	while ((old - readl(ce->timer.base + TIMER_CNTVAL_LO_REG(1))) < TIMER_SYNC_TICKS)
 		cpu_relax();
 }
 
-static void sun5i_clkevt_time_stop(u8 timer)
+static void sun5i_clkevt_time_stop(struct sun5i_timer_clkevt *ce, u8 timer)
 {
-	u32 val = readl(timer_base + TIMER_CTL_REG(timer));
-	writel(val & ~TIMER_CTL_ENABLE, timer_base + TIMER_CTL_REG(timer));
+	u32 val = readl(ce->timer.base + TIMER_CTL_REG(timer));
+	writel(val & ~TIMER_CTL_ENABLE, ce->timer.base + TIMER_CTL_REG(timer));
 
-	sun5i_clkevt_sync();
+	sun5i_clkevt_sync(ce);
 }
 
-static void sun5i_clkevt_time_setup(u8 timer, u32 delay)
+static void sun5i_clkevt_time_setup(struct sun5i_timer_clkevt *ce, u8 timer, u32 delay)
 {
-	writel(delay, timer_base + TIMER_INTVAL_LO_REG(timer));
+	writel(delay, ce->timer.base + TIMER_INTVAL_LO_REG(timer));
 }
 
-static void sun5i_clkevt_time_start(u8 timer, bool periodic)
+static void sun5i_clkevt_time_start(struct sun5i_timer_clkevt *ce, u8 timer, bool periodic)
 {
-	u32 val = readl(timer_base + TIMER_CTL_REG(timer));
+	u32 val = readl(ce->timer.base + TIMER_CTL_REG(timer));
 
 	if (periodic)
 		val &= ~TIMER_CTL_ONESHOT;
@@ -77,80 +100,230 @@ static void sun5i_clkevt_time_start(u8 timer, bool periodic)
 		val |= TIMER_CTL_ONESHOT;
 
 	writel(val | TIMER_CTL_ENABLE | TIMER_CTL_RELOAD,
-	       timer_base + TIMER_CTL_REG(timer));
+	       ce->timer.base + TIMER_CTL_REG(timer));
 }
 
 static void sun5i_clkevt_mode(enum clock_event_mode mode,
-			      struct clock_event_device *clk)
+			      struct clock_event_device *clkevt)
 {
+	struct sun5i_timer_clkevt *ce = to_sun5i_timer_clkevt(clkevt);
+
 	switch (mode) {
 	case CLOCK_EVT_MODE_PERIODIC:
-		sun5i_clkevt_time_stop(0);
-		sun5i_clkevt_time_setup(0, ticks_per_jiffy);
-		sun5i_clkevt_time_start(0, true);
+		sun5i_clkevt_time_stop(ce, 0);
+		sun5i_clkevt_time_setup(ce, 0, ce->timer.ticks_per_jiffy);
+		sun5i_clkevt_time_start(ce, 0, true);
 		break;
 	case CLOCK_EVT_MODE_ONESHOT:
-		sun5i_clkevt_time_stop(0);
-		sun5i_clkevt_time_start(0, false);
+		sun5i_clkevt_time_stop(ce, 0);
+		sun5i_clkevt_time_start(ce, 0, false);
 		break;
 	case CLOCK_EVT_MODE_UNUSED:
 	case CLOCK_EVT_MODE_SHUTDOWN:
 	default:
-		sun5i_clkevt_time_stop(0);
+		sun5i_clkevt_time_stop(ce, 0);
 		break;
 	}
 }
 
 static int sun5i_clkevt_next_event(unsigned long evt,
-				   struct clock_event_device *unused)
+				   struct clock_event_device *clkevt)
 {
-	sun5i_clkevt_time_stop(0);
-	sun5i_clkevt_time_setup(0, evt - TIMER_SYNC_TICKS);
-	sun5i_clkevt_time_start(0, false);
+	struct sun5i_timer_clkevt *ce = to_sun5i_timer_clkevt(clkevt);
+
+	sun5i_clkevt_time_stop(ce, 0);
+	sun5i_clkevt_time_setup(ce, 0, evt - TIMER_SYNC_TICKS);
+	sun5i_clkevt_time_start(ce, 0, false);
 
 	return 0;
 }
 
-static struct clock_event_device sun5i_clockevent = {
-	.name = "sun5i_tick",
-	.rating = 340,
-	.features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT,
-	.set_mode = sun5i_clkevt_mode,
-	.set_next_event = sun5i_clkevt_next_event,
-};
-
-
 static irqreturn_t sun5i_timer_interrupt(int irq, void *dev_id)
 {
-	struct clock_event_device *evt = (struct clock_event_device *)dev_id;
+	struct sun5i_timer_clkevt *ce = (struct sun5i_timer_clkevt *)dev_id;
 
-	writel(0x1, timer_base + TIMER_IRQ_ST_REG);
-	evt->event_handler(evt);
+	writel(0x1, ce->timer.base + TIMER_IRQ_ST_REG);
+	ce->clkevt.event_handler(&ce->clkevt);
 
 	return IRQ_HANDLED;
 }
 
-static struct irqaction sun5i_timer_irq = {
-	.name = "sun5i_timer0",
-	.flags = IRQF_TIMER | IRQF_IRQPOLL,
-	.handler = sun5i_timer_interrupt,
-	.dev_id = &sun5i_clockevent,
-};
+static cycle_t sun5i_clksrc_read(struct clocksource *clksrc)
+{
+	struct sun5i_timer_clksrc *cs = to_sun5i_timer_clksrc(clksrc);
+
+	return ~readl(cs->timer.base + TIMER_CNTVAL_LO_REG(1));
+}
 
-static u64 sun5i_timer_sched_read(void)
+static int sun5i_rate_cb_clksrc(struct notifier_block *nb,
+				unsigned long event, void *data)
 {
-	return ~readl(timer_base + TIMER_CNTVAL_LO_REG(1));
+	struct clk_notifier_data *ndata = data;
+	struct sun5i_timer *timer = to_sun5i_timer(nb);
+	struct sun5i_timer_clksrc *cs = container_of(timer, struct sun5i_timer_clksrc, timer);
+
+	switch (event) {
+	case PRE_RATE_CHANGE:
+		clocksource_unregister(&cs->clksrc);
+		break;
+
+	case POST_RATE_CHANGE:
+		clocksource_register_hz(&cs->clksrc, ndata->new_rate);
+		break;
+
+	default:
+		break;
+	}
+
+	return NOTIFY_DONE;
+}
+
+static int __init sun5i_setup_clocksource(struct device_node *node,
+					  void __iomem *base,
+					  struct clk *clk, int irq)
+{
+	struct sun5i_timer_clksrc *cs;
+	unsigned long rate;
+	int ret;
+
+	cs = kzalloc(sizeof(*cs), GFP_KERNEL);
+	if (!cs)
+		return -ENOMEM;
+
+	ret = clk_prepare_enable(clk);
+	if (ret) {
+		pr_err("Couldn't enable parent clock\n");
+		goto err_free;
+	}
+
+	rate = clk_get_rate(clk);
+
+	cs->timer.base = base;
+	cs->timer.clk = clk;
+	cs->timer.clk_rate_cb.notifier_call = sun5i_rate_cb_clksrc;
+	cs->timer.clk_rate_cb.next = NULL;
+
+	ret = clk_notifier_register(clk, &cs->timer.clk_rate_cb);
+	if (ret) {
+		pr_err("Unable to register clock notifier.\n");
+		goto err_disable_clk;
+	}
+
+	writel(~0, base + TIMER_INTVAL_LO_REG(1));
+	writel(TIMER_CTL_ENABLE | TIMER_CTL_RELOAD,
+	       base + TIMER_CTL_REG(1));
+
+	cs->clksrc.name = node->name;
+	cs->clksrc.rating = 340;
+	cs->clksrc.read = sun5i_clksrc_read;
+	cs->clksrc.mask = CLOCKSOURCE_MASK(32);
+	cs->clksrc.flags = CLOCK_SOURCE_IS_CONTINUOUS;
+
+	ret = clocksource_register_hz(&cs->clksrc, rate);
+	if (ret) {
+		pr_err("Couldn't register clock source.\n");
+		goto err_remove_notifier;
+	}
+
+	return 0;
+
+err_remove_notifier:
+	clk_notifier_unregister(clk, &cs->timer.clk_rate_cb);
+err_disable_clk:
+	clk_disable_unprepare(clk);
+err_free:
+	kfree(cs);
+	return ret;
+}
+
+static int sun5i_rate_cb_clkevt(struct notifier_block *nb,
+				unsigned long event, void *data)
+{
+	struct clk_notifier_data *ndata = data;
+	struct sun5i_timer *timer = to_sun5i_timer(nb);
+	struct sun5i_timer_clkevt *ce = container_of(timer, struct sun5i_timer_clkevt, timer);
+
+	if (event == POST_RATE_CHANGE) {
+		clockevents_update_freq(&ce->clkevt, ndata->new_rate);
+		ce->timer.ticks_per_jiffy = DIV_ROUND_UP(ndata->new_rate, HZ);
+	}
+
+	return NOTIFY_DONE;
+}
+
+static int __init sun5i_setup_clockevent(struct device_node *node, void __iomem *base,
+					 struct clk *clk, int irq)
+{
+	struct sun5i_timer_clkevt *ce;
+	unsigned long rate;
+	int ret;
+	u32 val;
+
+	ce = kzalloc(sizeof(*ce), GFP_KERNEL);
+	if (!ce)
+		return -ENOMEM;
+
+	ret = clk_prepare_enable(clk);
+	if (ret) {
+		pr_err("Couldn't enable parent clock\n");
+		goto err_free;
+	}
+
+	rate = clk_get_rate(clk);
+
+	ce->timer.base = base;
+	ce->timer.ticks_per_jiffy = DIV_ROUND_UP(rate, HZ);
+	ce->timer.clk = clk;
+	ce->timer.clk_rate_cb.notifier_call = sun5i_rate_cb_clkevt;
+	ce->timer.clk_rate_cb.next = NULL;
+
+	ret = clk_notifier_register(clk, &ce->timer.clk_rate_cb);
+	if (ret) {
+		pr_err("Unable to register clock notifier.\n");
+		goto err_disable_clk;
+	}
+
+	ce->clkevt.name = node->name;
+	ce->clkevt.features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT;
+	ce->clkevt.set_next_event = sun5i_clkevt_next_event;
+	ce->clkevt.set_mode = sun5i_clkevt_mode;
+	ce->clkevt.rating = 340;
+	ce->clkevt.irq = irq;
+	ce->clkevt.cpumask = cpu_possible_mask;
+
+	/* Enable timer0 interrupt */
+	val = readl(base + TIMER_IRQ_EN_REG);
+	writel(val | TIMER_IRQ_EN(0), base + TIMER_IRQ_EN_REG);
+
+	clockevents_config_and_register(&ce->clkevt, rate,
+					TIMER_SYNC_TICKS, 0xffffffff);
+
+	ret = request_irq(irq, sun5i_timer_interrupt, IRQF_TIMER | IRQF_IRQPOLL,
+			  "sun5i_timer0", ce);
+	if (ret) {
+		pr_err("Unable to register interrupt\n");
+		goto err_remove_notifier;
+	}
+
+	return 0;
+
+err_remove_notifier:
+	clk_notifier_unregister(clk, &ce->timer.clk_rate_cb);
+err_disable_clk:
+	clk_disable_unprepare(clk);
+err_free:
+	kfree(ce);
+	return ret;
 }
 
 static void __init sun5i_timer_init(struct device_node *node)
 {
 	struct reset_control *rstc;
-	unsigned long rate;
+	void __iomem *timer_base;
 	struct clk *clk;
-	int ret, irq;
-	u32 val;
+	int irq;
 
-	timer_base = of_iomap(node, 0);
+	timer_base = of_io_request_and_map(node, 0, of_node_full_name(node));
 	if (!timer_base)
 		panic("Can't map registers");
 
@@ -161,36 +334,13 @@ static void __init sun5i_timer_init(struct device_node *node)
 	clk = of_clk_get(node, 0);
 	if (IS_ERR(clk))
 		panic("Can't get timer clock");
-	clk_prepare_enable(clk);
-	rate = clk_get_rate(clk);
 
 	rstc = of_reset_control_get(node, NULL);
 	if (!IS_ERR(rstc))
 		reset_control_deassert(rstc);
 
-	writel(~0, timer_base + TIMER_INTVAL_LO_REG(1));
-	writel(TIMER_CTL_ENABLE | TIMER_CTL_RELOAD,
-	       timer_base + TIMER_CTL_REG(1));
-
-	sched_clock_register(sun5i_timer_sched_read, 32, rate);
-	clocksource_mmio_init(timer_base + TIMER_CNTVAL_LO_REG(1), node->name,
-			      rate, 340, 32, clocksource_mmio_readl_down);
-
-	ticks_per_jiffy = DIV_ROUND_UP(rate, HZ);
-
-	ret = setup_irq(irq, &sun5i_timer_irq);
-	if (ret)
-		pr_warn("failed to setup irq %d\n", irq);
-
-	/* Enable timer0 interrupt */
-	val = readl(timer_base + TIMER_IRQ_EN_REG);
-	writel(val | TIMER_IRQ_EN(0), timer_base + TIMER_IRQ_EN_REG);
-
-	sun5i_clockevent.cpumask = cpu_possible_mask;
-	sun5i_clockevent.irq = irq;
-
-	clockevents_config_and_register(&sun5i_clockevent, rate,
-					TIMER_SYNC_TICKS, 0xffffffff);
+	sun5i_setup_clocksource(node, timer_base, clk, irq);
+	sun5i_setup_clockevent(node, timer_base, clk, irq);
 }
 CLOCKSOURCE_OF_DECLARE(sun5i_a13, "allwinner,sun5i-a13-hstimer",
 		       sun5i_timer_init);
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 28e59a4..8ae655c 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -1698,15 +1698,18 @@ void cpufreq_resume(void)
 		    || __cpufreq_governor(policy, CPUFREQ_GOV_LIMITS))
 			pr_err("%s: Failed to start governor for policy: %p\n",
 				__func__, policy);
-
-		/*
-		 * schedule call cpufreq_update_policy() for boot CPU, i.e. last
-		 * policy in list. It will verify that the current freq is in
-		 * sync with what we believe it to be.
-		 */
-		if (list_is_last(&policy->policy_list, &cpufreq_policy_list))
-			schedule_work(&policy->update);
 	}
+
+	/*
+	 * schedule call cpufreq_update_policy() for first-online CPU, as that
+	 * wouldn't be hotplugged-out on suspend. It will verify that the
+	 * current freq is in sync with what we believe it to be.
+	 */
+	policy = cpufreq_cpu_get_raw(cpumask_first(cpu_online_mask));
+	if (WARN_ON(!policy))
+		return;
+
+	schedule_work(&policy->update);
 }
 
 /**
diff --git a/drivers/cpufreq/exynos-cpufreq.c b/drivers/cpufreq/exynos-cpufreq.c
index 5e98c6b..82d2fbb 100644
--- a/drivers/cpufreq/exynos-cpufreq.c
+++ b/drivers/cpufreq/exynos-cpufreq.c
@@ -159,7 +159,7 @@ static struct cpufreq_driver exynos_driver = {
 
 static int exynos_cpufreq_probe(struct platform_device *pdev)
 {
-	struct device_node *cpus, *np;
+	struct device_node *cpu0;
 	int ret = -EINVAL;
 
 	exynos_info = kzalloc(sizeof(*exynos_info), GFP_KERNEL);
@@ -206,28 +206,19 @@ static int exynos_cpufreq_probe(struct platform_device *pdev)
 	if (ret)
 		goto err_cpufreq_reg;
 
-	cpus = of_find_node_by_path("/cpus");
-	if (!cpus) {
-		pr_err("failed to find cpus node\n");
+	cpu0 = of_get_cpu_node(0, NULL);
+	if (!cpu0) {
+		pr_err("failed to find cpu0 node\n");
 		return 0;
 	}
 
-	np = of_get_next_child(cpus, NULL);
-	if (!np) {
-		pr_err("failed to find cpus child node\n");
-		of_node_put(cpus);
-		return 0;
-	}
-
-	if (of_find_property(np, "#cooling-cells", NULL)) {
-		cdev = of_cpufreq_cooling_register(np,
+	if (of_find_property(cpu0, "#cooling-cells", NULL)) {
+		cdev = of_cpufreq_cooling_register(cpu0,
 						   cpu_present_mask);
 		if (IS_ERR(cdev))
 			pr_err("running cpufreq without cooling device: %ld\n",
 			       PTR_ERR(cdev));
 	}
-	of_node_put(np);
-	of_node_put(cpus);
 
 	return 0;
 
diff --git a/drivers/cpufreq/ppc-corenet-cpufreq.c b/drivers/cpufreq/ppc-corenet-cpufreq.c
index bee5df7..7cb4b76 100644
--- a/drivers/cpufreq/ppc-corenet-cpufreq.c
+++ b/drivers/cpufreq/ppc-corenet-cpufreq.c
@@ -22,6 +22,8 @@
 #include <linux/smp.h>
 #include <sysdev/fsl_soc.h>
 
+#include <asm/smp.h>	/* for get_hard_smp_processor_id() in UP configs */
+
 /**
  * struct cpu_data - per CPU data struct
  * @parent: the parent node of cpu clock
diff --git a/drivers/cpuidle/cpuidle-mvebu-v7.c b/drivers/cpuidle/cpuidle-mvebu-v7.c
index 38e6861..980151f 100644
--- a/drivers/cpuidle/cpuidle-mvebu-v7.c
+++ b/drivers/cpuidle/cpuidle-mvebu-v7.c
@@ -37,11 +37,11 @@ static int mvebu_v7_enter_idle(struct cpuidle_device *dev,
 		deepidle = true;
 
 	ret = mvebu_v7_cpu_suspend(deepidle);
+	cpu_pm_exit();
+
 	if (ret)
 		return ret;
 
-	cpu_pm_exit();
-
 	return index;
 }
 
@@ -50,17 +50,17 @@ static struct cpuidle_driver armadaxp_idle_driver = {
 	.states[0]		= ARM_CPUIDLE_WFI_STATE,
 	.states[1]		= {
 		.enter			= mvebu_v7_enter_idle,
-		.exit_latency		= 10,
+		.exit_latency		= 100,
 		.power_usage		= 50,
-		.target_residency	= 100,
+		.target_residency	= 1000,
 		.name			= "MV CPU IDLE",
 		.desc			= "CPU power down",
 	},
 	.states[2]		= {
 		.enter			= mvebu_v7_enter_idle,
-		.exit_latency		= 100,
+		.exit_latency		= 1000,
 		.power_usage		= 5,
-		.target_residency	= 1000,
+		.target_residency	= 10000,
 		.flags			= MVEBU_V7_FLAG_DEEP_IDLE,
 		.name			= "MV CPU DEEP IDLE",
 		.desc			= "CPU and L2 Fabric power down",
diff --git a/drivers/cpuidle/cpuidle.c b/drivers/cpuidle/cpuidle.c
index 4d53458..7a73a27 100644
--- a/drivers/cpuidle/cpuidle.c
+++ b/drivers/cpuidle/cpuidle.c
@@ -44,6 +44,12 @@ void disable_cpuidle(void)
 	off = 1;
 }
 
+bool cpuidle_not_available(struct cpuidle_driver *drv,
+			   struct cpuidle_device *dev)
+{
+	return off || !initialized || !drv || !dev || !dev->enabled;
+}
+
 /**
  * cpuidle_play_dead - cpu off-lining
  *
@@ -66,14 +72,8 @@ int cpuidle_play_dead(void)
 	return -ENODEV;
 }
 
-/**
- * cpuidle_find_deepest_state - Find deepest state meeting specific conditions.
- * @drv: cpuidle driver for the given CPU.
- * @dev: cpuidle device for the given CPU.
- * @freeze: Whether or not the state should be suitable for suspend-to-idle.
- */
-static int cpuidle_find_deepest_state(struct cpuidle_driver *drv,
-				      struct cpuidle_device *dev, bool freeze)
+static int find_deepest_state(struct cpuidle_driver *drv,
+			      struct cpuidle_device *dev, bool freeze)
 {
 	unsigned int latency_req = 0;
 	int i, ret = freeze ? -1 : CPUIDLE_DRIVER_STATE_START - 1;
@@ -92,6 +92,17 @@ static int cpuidle_find_deepest_state(struct cpuidle_driver *drv,
 	return ret;
 }
 
+/**
+ * cpuidle_find_deepest_state - Find the deepest available idle state.
+ * @drv: cpuidle driver for the given CPU.
+ * @dev: cpuidle device for the given CPU.
+ */
+int cpuidle_find_deepest_state(struct cpuidle_driver *drv,
+			       struct cpuidle_device *dev)
+{
+	return find_deepest_state(drv, dev, false);
+}
+
 static void enter_freeze_proper(struct cpuidle_driver *drv,
 				struct cpuidle_device *dev, int index)
 {
@@ -113,15 +124,14 @@ static void enter_freeze_proper(struct cpuidle_driver *drv,
 
 /**
  * cpuidle_enter_freeze - Enter an idle state suitable for suspend-to-idle.
+ * @drv: cpuidle driver for the given CPU.
+ * @dev: cpuidle device for the given CPU.
  *
  * If there are states with the ->enter_freeze callback, find the deepest of
- * them and enter it with frozen tick.  Otherwise, find the deepest state
- * available and enter it normally.
+ * them and enter it with frozen tick.
  */
-void cpuidle_enter_freeze(void)
+int cpuidle_enter_freeze(struct cpuidle_driver *drv, struct cpuidle_device *dev)
 {
-	struct cpuidle_device *dev = __this_cpu_read(cpuidle_devices);
-	struct cpuidle_driver *drv = cpuidle_get_cpu_driver(dev);
 	int index;
 
 	/*
@@ -129,24 +139,11 @@ void cpuidle_enter_freeze(void)
 	 * that interrupts won't be enabled when it exits and allows the tick to
 	 * be frozen safely.
 	 */
-	index = cpuidle_find_deepest_state(drv, dev, true);
-	if (index >= 0) {
-		enter_freeze_proper(drv, dev, index);
-		return;
-	}
-
-	/*
-	 * It is not safe to freeze the tick, find the deepest state available
-	 * at all and try to enter it normally.
-	 */
-	index = cpuidle_find_deepest_state(drv, dev, false);
+	index = find_deepest_state(drv, dev, true);
 	if (index >= 0)
-		cpuidle_enter(drv, dev, index);
-	else
-		arch_cpu_idle();
+		enter_freeze_proper(drv, dev, index);
 
-	/* Interrupts are enabled again here. */
-	local_irq_disable();
+	return index;
 }
 
 /**
@@ -205,12 +202,6 @@ int cpuidle_enter_state(struct cpuidle_device *dev, struct cpuidle_driver *drv,
  */
 int cpuidle_select(struct cpuidle_driver *drv, struct cpuidle_device *dev)
 {
-	if (off || !initialized)
-		return -ENODEV;
-
-	if (!drv || !dev || !dev->enabled)
-		return -EBUSY;
-
 	return cpuidle_curr_governor->select(drv, dev);
 }
 
@@ -339,9 +330,6 @@ int cpuidle_enable_device(struct cpuidle_device *dev)
 	if (!dev->registered)
 		return -EINVAL;
 
-	if (!dev->state_count)
-		dev->state_count = drv->state_count;
-
 	ret = cpuidle_add_device_sysfs(dev);
 	if (ret)
 		return ret;
diff --git a/drivers/cpuidle/driver.c b/drivers/cpuidle/driver.c
index 2697e87..5db1478 100644
--- a/drivers/cpuidle/driver.c
+++ b/drivers/cpuidle/driver.c
@@ -13,7 +13,7 @@
 #include <linux/sched.h>
 #include <linux/cpuidle.h>
 #include <linux/cpumask.h>
-#include <linux/clockchips.h>
+#include <linux/tick.h>
 
 #include "cpuidle.h"
 
@@ -130,21 +130,20 @@ static inline void __cpuidle_unset_driver(struct cpuidle_driver *drv)
 #endif
 
 /**
- * cpuidle_setup_broadcast_timer - enable/disable the broadcast timer
+ * cpuidle_setup_broadcast_timer - enable/disable the broadcast timer on a cpu
  * @arg: a void pointer used to match the SMP cross call API
  *
- * @arg is used as a value of type 'long' with one of the two values:
- * - CLOCK_EVT_NOTIFY_BROADCAST_ON
- * - CLOCK_EVT_NOTIFY_BROADCAST_OFF
+ * If @arg is NULL broadcast is disabled otherwise enabled
  *
- * Set the broadcast timer notification for the current CPU.  This function
- * is executed per CPU by an SMP cross call.  It not supposed to be called
- * directly.
+ * This function is executed per CPU by an SMP cross call.  It's not
+ * supposed to be called directly.
  */
 static void cpuidle_setup_broadcast_timer(void *arg)
 {
-	int cpu = smp_processor_id();
-	clockevents_notify((long)(arg), &cpu);
+	if (arg)
+		tick_broadcast_enable();
+	else
+		tick_broadcast_disable();
 }
 
 /**
@@ -239,7 +238,7 @@ static int __cpuidle_register_driver(struct cpuidle_driver *drv)
 
 	if (drv->bctimer)
 		on_each_cpu_mask(drv->cpumask, cpuidle_setup_broadcast_timer,
-				 (void *)CLOCK_EVT_NOTIFY_BROADCAST_ON, 1);
+				 (void *)1, 1);
 
 	poll_idle_init(drv);
 
@@ -263,7 +262,7 @@ static void __cpuidle_unregister_driver(struct cpuidle_driver *drv)
 	if (drv->bctimer) {
 		drv->bctimer = 0;
 		on_each_cpu_mask(drv->cpumask, cpuidle_setup_broadcast_timer,
-				 (void *)CLOCK_EVT_NOTIFY_BROADCAST_OFF, 1);
+				 NULL, 1);
 	}
 
 	__cpuidle_unset_driver(drv);
diff --git a/drivers/cpuidle/sysfs.c b/drivers/cpuidle/sysfs.c
index 97c5903..832a2c3 100644
--- a/drivers/cpuidle/sysfs.c
+++ b/drivers/cpuidle/sysfs.c
@@ -401,7 +401,7 @@ static int cpuidle_add_state_sysfs(struct cpuidle_device *device)
 	struct cpuidle_driver *drv = cpuidle_get_cpu_driver(device);
 
 	/* state statistics */
-	for (i = 0; i < device->state_count; i++) {
+	for (i = 0; i < drv->state_count; i++) {
 		kobj = kzalloc(sizeof(struct cpuidle_state_kobj), GFP_KERNEL);
 		if (!kobj)
 			goto error_state;
@@ -433,9 +433,10 @@ error_state:
  */
 static void cpuidle_remove_state_sysfs(struct cpuidle_device *device)
 {
+	struct cpuidle_driver *drv = cpuidle_get_cpu_driver(device);
 	int i;
 
-	for (i = 0; i < device->state_count; i++)
+	for (i = 0; i < drv->state_count; i++)
 		cpuidle_free_state_kobj(device, i);
 }
 
diff --git a/drivers/dma-buf/fence.c b/drivers/dma-buf/fence.c
index e554111..50ef8bd 100644
--- a/drivers/dma-buf/fence.c
+++ b/drivers/dma-buf/fence.c
@@ -159,6 +159,9 @@ fence_wait_timeout(struct fence *fence, bool intr, signed long timeout)
 	if (WARN_ON(timeout < 0))
 		return -EINVAL;
 
+	if (timeout == 0)
+		return fence_is_signaled(fence);
+
 	trace_fence_wait_start(fence);
 	ret = fence->ops->wait(fence, intr, timeout);
 	trace_fence_wait_end(fence);
diff --git a/drivers/dma-buf/reservation.c b/drivers/dma-buf/reservation.c
index 3c97c8f..39920d7 100644
--- a/drivers/dma-buf/reservation.c
+++ b/drivers/dma-buf/reservation.c
@@ -327,6 +327,9 @@ long reservation_object_wait_timeout_rcu(struct reservation_object *obj,
 	unsigned seq, shared_count, i = 0;
 	long ret = timeout;
 
+	if (!timeout)
+		return reservation_object_test_signaled_rcu(obj, wait_all);
+
 retry:
 	fence = NULL;
 	shared_count = 0;
@@ -402,8 +405,6 @@ reservation_object_test_signaled_single(struct fence *passed_fence)
 	int ret = 1;
 
 	if (!test_bit(FENCE_FLAG_SIGNALED_BIT, &lfence->flags)) {
-		int ret;
-
 		fence = fence_get_rcu(lfence);
 		if (!fence)
 			return -1;
diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig
index a874b6e..942ca54 100644
--- a/drivers/dma/Kconfig
+++ b/drivers/dma/Kconfig
@@ -51,19 +51,6 @@ config INTEL_MIC_X100_DMA
 	  OS and tools for MIC to use with this driver are available from
 	  <http://software.intel.com/en-us/mic-developer>.
 
-config INTEL_MID_DMAC
-	tristate "Intel MID DMA support for Peripheral DMA controllers"
-	depends on PCI && X86
-	select DMA_ENGINE
-	default n
-	help
-	  Enable support for the Intel(R) MID DMA engine present
-	  in Intel MID chipsets.
-
-	  Say Y here if you have such a chipset.
-
-	  If unsure, say N.
-
 config ASYNC_TX_ENABLE_CHANNEL_SWITCH
 	bool
 
diff --git a/drivers/dma/Makefile b/drivers/dma/Makefile
index f915f61..539d482 100644
--- a/drivers/dma/Makefile
+++ b/drivers/dma/Makefile
@@ -6,7 +6,6 @@ obj-$(CONFIG_DMA_VIRTUAL_CHANNELS) += virt-dma.o
 obj-$(CONFIG_DMA_ACPI) += acpi-dma.o
 obj-$(CONFIG_DMA_OF) += of-dma.o
 
-obj-$(CONFIG_INTEL_MID_DMAC) += intel_mid_dma.o
 obj-$(CONFIG_DMATEST) += dmatest.o
 obj-$(CONFIG_INTEL_IOATDMA) += ioat/
 obj-$(CONFIG_INTEL_IOP_ADMA) += iop-adma.o
diff --git a/drivers/dma/amba-pl08x.c b/drivers/dma/amba-pl08x.c
index 4a5fd24..83aa55d 100644
--- a/drivers/dma/amba-pl08x.c
+++ b/drivers/dma/amba-pl08x.c
@@ -97,6 +97,12 @@
 
 #define DRIVER_NAME	"pl08xdmac"
 
+#define PL80X_DMA_BUSWIDTHS \
+	BIT(DMA_SLAVE_BUSWIDTH_UNDEFINED) | \
+	BIT(DMA_SLAVE_BUSWIDTH_1_BYTE) | \
+	BIT(DMA_SLAVE_BUSWIDTH_2_BYTES) | \
+	BIT(DMA_SLAVE_BUSWIDTH_4_BYTES)
+
 static struct amba_driver pl08x_amba_driver;
 struct pl08x_driver_data;
 
@@ -2070,6 +2076,10 @@ static int pl08x_probe(struct amba_device *adev, const struct amba_id *id)
 	pl08x->memcpy.device_pause = pl08x_pause;
 	pl08x->memcpy.device_resume = pl08x_resume;
 	pl08x->memcpy.device_terminate_all = pl08x_terminate_all;
+	pl08x->memcpy.src_addr_widths = PL80X_DMA_BUSWIDTHS;
+	pl08x->memcpy.dst_addr_widths = PL80X_DMA_BUSWIDTHS;
+	pl08x->memcpy.directions = BIT(DMA_MEM_TO_MEM);
+	pl08x->memcpy.residue_granularity = DMA_RESIDUE_GRANULARITY_SEGMENT;
 
 	/* Initialize slave engine */
 	dma_cap_set(DMA_SLAVE, pl08x->slave.cap_mask);
@@ -2086,6 +2096,10 @@ static int pl08x_probe(struct amba_device *adev, const struct amba_id *id)
 	pl08x->slave.device_pause = pl08x_pause;
 	pl08x->slave.device_resume = pl08x_resume;
 	pl08x->slave.device_terminate_all = pl08x_terminate_all;
+	pl08x->slave.src_addr_widths = PL80X_DMA_BUSWIDTHS;
+	pl08x->slave.dst_addr_widths = PL80X_DMA_BUSWIDTHS;
+	pl08x->slave.directions = BIT(DMA_DEV_TO_MEM) | BIT(DMA_MEM_TO_DEV);
+	pl08x->slave.residue_granularity = DMA_RESIDUE_GRANULARITY_SEGMENT;
 
 	/* Get the platform data */
 	pl08x->pd = dev_get_platdata(&adev->dev);
diff --git a/drivers/dma/at_hdmac.c b/drivers/dma/at_hdmac.c
index 1e1a4c5..0b4fc6f 100644
--- a/drivers/dma/at_hdmac.c
+++ b/drivers/dma/at_hdmac.c
@@ -238,93 +238,126 @@ static void atc_dostart(struct at_dma_chan *atchan, struct at_desc *first)
 }
 
 /*
- * atc_get_current_descriptors -
- * locate the descriptor which equal to physical address in DSCR
- * @atchan: the channel we want to start
- * @dscr_addr: physical descriptor address in DSCR
+ * atc_get_desc_by_cookie - get the descriptor of a cookie
+ * @atchan: the DMA channel
+ * @cookie: the cookie to get the descriptor for
  */
-static struct at_desc *atc_get_current_descriptors(struct at_dma_chan *atchan,
-							u32 dscr_addr)
+static struct at_desc *atc_get_desc_by_cookie(struct at_dma_chan *atchan,
+						dma_cookie_t cookie)
 {
-	struct at_desc  *desc, *_desc, *child, *desc_cur = NULL;
+	struct at_desc *desc, *_desc;
 
-	list_for_each_entry_safe(desc, _desc, &atchan->active_list, desc_node) {
-		if (desc->lli.dscr == dscr_addr) {
-			desc_cur = desc;
-			break;
-		}
+	list_for_each_entry_safe(desc, _desc, &atchan->queue, desc_node) {
+		if (desc->txd.cookie == cookie)
+			return desc;
+	}
 
-		list_for_each_entry(child, &desc->tx_list, desc_node) {
-			if (child->lli.dscr == dscr_addr) {
-				desc_cur = child;
-				break;
-			}
-		}
+	list_for_each_entry_safe(desc, _desc, &atchan->active_list, desc_node) {
+		if (desc->txd.cookie == cookie)
+			return desc;
 	}
 
-	return desc_cur;
+	return NULL;
 }
 
-/*
- * atc_get_bytes_left -
- * Get the number of bytes residue in dma buffer,
- * @chan: the channel we want to start
+/**
+ * atc_calc_bytes_left - calculates the number of bytes left according to the
+ * value read from CTRLA.
+ *
+ * @current_len: the number of bytes left before reading CTRLA
+ * @ctrla: the value of CTRLA
+ * @desc: the descriptor containing the transfer width
+ */
+static inline int atc_calc_bytes_left(int current_len, u32 ctrla,
+					struct at_desc *desc)
+{
+	return current_len - ((ctrla & ATC_BTSIZE_MAX) << desc->tx_width);
+}
+
+/**
+ * atc_calc_bytes_left_from_reg - calculates the number of bytes left according
+ * to the current value of CTRLA.
+ *
+ * @current_len: the number of bytes left before reading CTRLA
+ * @atchan: the channel to read CTRLA for
+ * @desc: the descriptor containing the transfer width
+ */
+static inline int atc_calc_bytes_left_from_reg(int current_len,
+			struct at_dma_chan *atchan, struct at_desc *desc)
+{
+	u32 ctrla = channel_readl(atchan, CTRLA);
+
+	return atc_calc_bytes_left(current_len, ctrla, desc);
+}
+
+/**
+ * atc_get_bytes_left - get the number of bytes residue for a cookie
+ * @chan: DMA channel
+ * @cookie: transaction identifier to check status of
  */
-static int atc_get_bytes_left(struct dma_chan *chan)
+static int atc_get_bytes_left(struct dma_chan *chan, dma_cookie_t cookie)
 {
 	struct at_dma_chan      *atchan = to_at_dma_chan(chan);
-	struct at_dma           *atdma = to_at_dma(chan->device);
-	int	chan_id = atchan->chan_common.chan_id;
 	struct at_desc *desc_first = atc_first_active(atchan);
-	struct at_desc *desc_cur;
-	int ret = 0, count = 0;
+	struct at_desc *desc;
+	int ret;
+	u32 ctrla, dscr;
 
 	/*
-	 * Initialize necessary values in the first time.
-	 * remain_desc record remain desc length.
+	 * If the cookie doesn't match to the currently running transfer then
+	 * we can return the total length of the associated DMA transfer,
+	 * because it is still queued.
 	 */
-	if (atchan->remain_desc == 0)
-		/* First descriptor embedds the transaction length */
-		atchan->remain_desc = desc_first->len;
+	desc = atc_get_desc_by_cookie(atchan, cookie);
+	if (desc == NULL)
+		return -EINVAL;
+	else if (desc != desc_first)
+		return desc->total_len;
 
-	/*
-	 * This happens when current descriptor transfer complete.
-	 * The residual buffer size should reduce current descriptor length.
-	 */
-	if (unlikely(test_bit(ATC_IS_BTC, &atchan->status))) {
-		clear_bit(ATC_IS_BTC, &atchan->status);
-		desc_cur = atc_get_current_descriptors(atchan,
-						channel_readl(atchan, DSCR));
-		if (!desc_cur) {
-			ret = -EINVAL;
-			goto out;
-		}
+	/* cookie matches to the currently running transfer */
+	ret = desc_first->total_len;
 
-		count = (desc_cur->lli.ctrla & ATC_BTSIZE_MAX)
-			<< desc_first->tx_width;
-		if (atchan->remain_desc < count) {
-			ret = -EINVAL;
-			goto out;
+	if (desc_first->lli.dscr) {
+		/* hardware linked list transfer */
+
+		/*
+		 * Calculate the residue by removing the length of the child
+		 * descriptors already transferred from the total length.
+		 * To get the current child descriptor we can use the value of
+		 * the channel's DSCR register and compare it against the value
+		 * of the hardware linked list structure of each child
+		 * descriptor.
+		 */
+
+		ctrla = channel_readl(atchan, CTRLA);
+		rmb(); /* ensure CTRLA is read before DSCR */
+		dscr = channel_readl(atchan, DSCR);
+
+		/* for the first descriptor we can be more accurate */
+		if (desc_first->lli.dscr == dscr)
+			return atc_calc_bytes_left(ret, ctrla, desc_first);
+
+		ret -= desc_first->len;
+		list_for_each_entry(desc, &desc_first->tx_list, desc_node) {
+			if (desc->lli.dscr == dscr)
+				break;
+
+			ret -= desc->len;
 		}
 
-		atchan->remain_desc -= count;
-		ret = atchan->remain_desc;
-	} else {
 		/*
-		 * Get residual bytes when current
-		 * descriptor transfer in progress.
+		 * For the last descriptor in the chain we can calculate
+		 * the remaining bytes using the channel's register.
+		 * Note that the transfer width of the first and last
+		 * descriptor may differ.
 		 */
-		count = (channel_readl(atchan, CTRLA) & ATC_BTSIZE_MAX)
-				<< (desc_first->tx_width);
-		ret = atchan->remain_desc - count;
+		if (!desc->lli.dscr)
+			ret = atc_calc_bytes_left_from_reg(ret, atchan, desc);
+	} else {
+		/* single transfer */
+		ret = atc_calc_bytes_left_from_reg(ret, atchan, desc_first);
 	}
-	/*
-	 * Check fifo empty.
-	 */
-	if (!(dma_readl(atdma, CHSR) & AT_DMA_EMPT(chan_id)))
-		atc_issue_pending(chan);
 
-out:
 	return ret;
 }
 
@@ -539,8 +572,6 @@ static irqreturn_t at_dma_interrupt(int irq, void *dev_id)
 					/* Give information to tasklet */
 					set_bit(ATC_IS_ERROR, &atchan->status);
 				}
-				if (pending & AT_DMA_BTC(i))
-					set_bit(ATC_IS_BTC, &atchan->status);
 				tasklet_schedule(&atchan->tasklet);
 				ret = IRQ_HANDLED;
 			}
@@ -653,14 +684,18 @@ atc_prep_dma_memcpy(struct dma_chan *chan, dma_addr_t dest, dma_addr_t src,
 		desc->lli.ctrlb = ctrlb;
 
 		desc->txd.cookie = 0;
+		desc->len = xfer_count << src_width;
 
 		atc_desc_chain(&first, &prev, desc);
 	}
 
 	/* First descriptor of the chain embedds additional information */
 	first->txd.cookie = -EBUSY;
-	first->len = len;
+	first->total_len = len;
+
+	/* set transfer width for the calculation of the residue */
 	first->tx_width = src_width;
+	prev->tx_width = src_width;
 
 	/* set end-of-link to the last link descriptor of list*/
 	set_desc_eol(desc);
@@ -752,6 +787,7 @@ atc_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl,
 					| ATC_SRC_WIDTH(mem_width)
 					| len >> mem_width;
 			desc->lli.ctrlb = ctrlb;
+			desc->len = len;
 
 			atc_desc_chain(&first, &prev, desc);
 			total_len += len;
@@ -792,6 +828,7 @@ atc_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl,
 					| ATC_DST_WIDTH(mem_width)
 					| len >> reg_width;
 			desc->lli.ctrlb = ctrlb;
+			desc->len = len;
 
 			atc_desc_chain(&first, &prev, desc);
 			total_len += len;
@@ -806,8 +843,11 @@ atc_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl,
 
 	/* First descriptor of the chain embedds additional information */
 	first->txd.cookie = -EBUSY;
-	first->len = total_len;
+	first->total_len = total_len;
+
+	/* set transfer width for the calculation of the residue */
 	first->tx_width = reg_width;
+	prev->tx_width = reg_width;
 
 	/* first link descriptor of list is responsible of flags */
 	first->txd.flags = flags; /* client is in control of this ack */
@@ -872,6 +912,7 @@ atc_dma_cyclic_fill_desc(struct dma_chan *chan, struct at_desc *desc,
 				| ATC_FC_MEM2PER
 				| ATC_SIF(atchan->mem_if)
 				| ATC_DIF(atchan->per_if);
+		desc->len = period_len;
 		break;
 
 	case DMA_DEV_TO_MEM:
@@ -883,6 +924,7 @@ atc_dma_cyclic_fill_desc(struct dma_chan *chan, struct at_desc *desc,
 				| ATC_FC_PER2MEM
 				| ATC_SIF(atchan->per_if)
 				| ATC_DIF(atchan->mem_if);
+		desc->len = period_len;
 		break;
 
 	default:
@@ -964,7 +1006,7 @@ atc_prep_dma_cyclic(struct dma_chan *chan, dma_addr_t buf_addr, size_t buf_len,
 
 	/* First descriptor of the chain embedds additional information */
 	first->txd.cookie = -EBUSY;
-	first->len = buf_len;
+	first->total_len = buf_len;
 	first->tx_width = reg_width;
 
 	return &first->txd;
@@ -1118,7 +1160,7 @@ atc_tx_status(struct dma_chan *chan,
 	spin_lock_irqsave(&atchan->lock, flags);
 
 	/*  Get number of bytes left in the active transactions */
-	bytes = atc_get_bytes_left(chan);
+	bytes = atc_get_bytes_left(chan, cookie);
 
 	spin_unlock_irqrestore(&atchan->lock, flags);
 
@@ -1214,7 +1256,6 @@ static int atc_alloc_chan_resources(struct dma_chan *chan)
 
 	spin_lock_irqsave(&atchan->lock, flags);
 	atchan->descs_allocated = i;
-	atchan->remain_desc = 0;
 	list_splice(&tmp_list, &atchan->free_list);
 	dma_cookie_init(chan);
 	spin_unlock_irqrestore(&atchan->lock, flags);
@@ -1257,7 +1298,6 @@ static void atc_free_chan_resources(struct dma_chan *chan)
 	list_splice_init(&atchan->free_list, &list);
 	atchan->descs_allocated = 0;
 	atchan->status = 0;
-	atchan->remain_desc = 0;
 
 	dev_vdbg(chan2dev(chan), "free_chan_resources: done\n");
 }
diff --git a/drivers/dma/at_hdmac_regs.h b/drivers/dma/at_hdmac_regs.h
index d6bba6c..2727ca5 100644
--- a/drivers/dma/at_hdmac_regs.h
+++ b/drivers/dma/at_hdmac_regs.h
@@ -181,8 +181,9 @@ struct at_lli {
  * @at_lli: hardware lli structure
  * @txd: support for the async_tx api
  * @desc_node: node on the channed descriptors list
- * @len: total transaction bytecount
+ * @len: descriptor byte count
  * @tx_width: transfer width
+ * @total_len: total transaction byte count
  */
 struct at_desc {
 	/* FIRST values the hardware uses */
@@ -194,6 +195,7 @@ struct at_desc {
 	struct list_head		desc_node;
 	size_t				len;
 	u32				tx_width;
+	size_t				total_len;
 };
 
 static inline struct at_desc *
@@ -213,7 +215,6 @@ txd_to_at_desc(struct dma_async_tx_descriptor *txd)
 enum atc_status {
 	ATC_IS_ERROR = 0,
 	ATC_IS_PAUSED = 1,
-	ATC_IS_BTC = 2,
 	ATC_IS_CYCLIC = 24,
 };
 
@@ -231,7 +232,6 @@ enum atc_status {
  * @save_cfg: configuration register that is saved on suspend/resume cycle
  * @save_dscr: for cyclic operations, preserve next descriptor address in
  *             the cyclic list on suspend/resume cycle
- * @remain_desc: to save remain desc length
  * @dma_sconfig: configuration for slave transfers, passed via
  * .device_config
  * @lock: serializes enqueue/dequeue operations to descriptors lists
@@ -251,7 +251,6 @@ struct at_dma_chan {
 	struct tasklet_struct	tasklet;
 	u32			save_cfg;
 	u32			save_dscr;
-	u32			remain_desc;
 	struct dma_slave_config dma_sconfig;
 
 	spinlock_t		lock;
diff --git a/drivers/dma/at_xdmac.c b/drivers/dma/at_xdmac.c
index 09e2825..d9891d3 100644
--- a/drivers/dma/at_xdmac.c
+++ b/drivers/dma/at_xdmac.c
@@ -664,7 +664,6 @@ at_xdmac_prep_dma_cyclic(struct dma_chan *chan, dma_addr_t buf_addr,
 	struct at_xdmac_desc	*first = NULL, *prev = NULL;
 	unsigned int		periods = buf_len / period_len;
 	int			i;
-	u32			cfg;
 
 	dev_dbg(chan2dev(chan), "%s: buf_addr=%pad, buf_len=%zd, period_len=%zd, dir=%s, flags=0x%lx\n",
 		__func__, &buf_addr, buf_len, period_len,
@@ -700,17 +699,17 @@ at_xdmac_prep_dma_cyclic(struct dma_chan *chan, dma_addr_t buf_addr,
 		if (direction == DMA_DEV_TO_MEM) {
 			desc->lld.mbr_sa = atchan->per_src_addr;
 			desc->lld.mbr_da = buf_addr + i * period_len;
-			cfg = atchan->cfg[AT_XDMAC_DEV_TO_MEM_CFG];
+			desc->lld.mbr_cfg = atchan->cfg[AT_XDMAC_DEV_TO_MEM_CFG];
 		} else {
 			desc->lld.mbr_sa = buf_addr + i * period_len;
 			desc->lld.mbr_da = atchan->per_dst_addr;
-			cfg = atchan->cfg[AT_XDMAC_MEM_TO_DEV_CFG];
+			desc->lld.mbr_cfg = atchan->cfg[AT_XDMAC_MEM_TO_DEV_CFG];
 		}
 		desc->lld.mbr_ubc = AT_XDMAC_MBR_UBC_NDV1
 			| AT_XDMAC_MBR_UBC_NDEN
 			| AT_XDMAC_MBR_UBC_NSEN
 			| AT_XDMAC_MBR_UBC_NDE
-			| period_len >> at_xdmac_get_dwidth(cfg);
+			| period_len >> at_xdmac_get_dwidth(desc->lld.mbr_cfg);
 
 		dev_dbg(chan2dev(chan),
 			 "%s: lld: mbr_sa=%pad, mbr_da=%pad, mbr_ubc=0x%08x\n",
diff --git a/drivers/dma/bcm2835-dma.c b/drivers/dma/bcm2835-dma.c
index 0723096..c92d6a7 100644
--- a/drivers/dma/bcm2835-dma.c
+++ b/drivers/dma/bcm2835-dma.c
@@ -475,6 +475,7 @@ static int bcm2835_dma_terminate_all(struct dma_chan *chan)
 	 * c->desc is NULL and exit.)
 	 */
 	if (c->desc) {
+		bcm2835_dma_desc_free(&c->desc->vd);
 		c->desc = NULL;
 		bcm2835_dma_abort(c->chan_base);
 
diff --git a/drivers/dma/cppi41.c b/drivers/dma/cppi41.c
index 512cb8e..ceedafb 100644
--- a/drivers/dma/cppi41.c
+++ b/drivers/dma/cppi41.c
@@ -903,6 +903,11 @@ static const struct cppi_glue_infos *get_glue_info(struct device *dev)
 	return of_id->data;
 }
 
+#define CPPI41_DMA_BUSWIDTHS	(BIT(DMA_SLAVE_BUSWIDTH_1_BYTE) | \
+				BIT(DMA_SLAVE_BUSWIDTH_2_BYTES) | \
+				BIT(DMA_SLAVE_BUSWIDTH_3_BYTES) | \
+				BIT(DMA_SLAVE_BUSWIDTH_4_BYTES))
+
 static int cppi41_dma_probe(struct platform_device *pdev)
 {
 	struct cppi41_dd *cdd;
@@ -926,6 +931,10 @@ static int cppi41_dma_probe(struct platform_device *pdev)
 	cdd->ddev.device_issue_pending = cppi41_dma_issue_pending;
 	cdd->ddev.device_prep_slave_sg = cppi41_dma_prep_slave_sg;
 	cdd->ddev.device_terminate_all = cppi41_stop_chan;
+	cdd->ddev.directions = BIT(DMA_DEV_TO_MEM) | BIT(DMA_MEM_TO_DEV);
+	cdd->ddev.src_addr_widths = CPPI41_DMA_BUSWIDTHS;
+	cdd->ddev.dst_addr_widths = CPPI41_DMA_BUSWIDTHS;
+	cdd->ddev.residue_granularity = DMA_RESIDUE_GRANULARITY_BURST;
 	cdd->ddev.dev = dev;
 	INIT_LIST_HEAD(&cdd->ddev.channels);
 	cpp41_dma_info.dma_cap = cdd->ddev.cap_mask;
diff --git a/drivers/dma/dma-jz4740.c b/drivers/dma/dma-jz4740.c
index 4527a3e..8488441 100644
--- a/drivers/dma/dma-jz4740.c
+++ b/drivers/dma/dma-jz4740.c
@@ -511,6 +511,9 @@ static void jz4740_dma_desc_free(struct virt_dma_desc *vdesc)
 	kfree(container_of(vdesc, struct jz4740_dma_desc, vdesc));
 }
 
+#define JZ4740_DMA_BUSWIDTHS (BIT(DMA_SLAVE_BUSWIDTH_1_BYTE) | \
+	BIT(DMA_SLAVE_BUSWIDTH_2_BYTES) | BIT(DMA_SLAVE_BUSWIDTH_4_BYTES))
+
 static int jz4740_dma_probe(struct platform_device *pdev)
 {
 	struct jz4740_dmaengine_chan *chan;
@@ -548,6 +551,10 @@ static int jz4740_dma_probe(struct platform_device *pdev)
 	dd->device_prep_dma_cyclic = jz4740_dma_prep_dma_cyclic;
 	dd->device_config = jz4740_dma_slave_config;
 	dd->device_terminate_all = jz4740_dma_terminate_all;
+	dd->src_addr_widths = JZ4740_DMA_BUSWIDTHS;
+	dd->dst_addr_widths = JZ4740_DMA_BUSWIDTHS;
+	dd->directions = BIT(DMA_DEV_TO_MEM) | BIT(DMA_MEM_TO_DEV);
+	dd->residue_granularity = DMA_RESIDUE_GRANULARITY_BURST;
 	dd->dev = &pdev->dev;
 	INIT_LIST_HEAD(&dd->channels);
 
diff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c
index f15712f..ac336a9 100644
--- a/drivers/dma/dmaengine.c
+++ b/drivers/dma/dmaengine.c
@@ -859,9 +859,6 @@ int dma_async_device_register(struct dma_device *device)
 	BUG_ON(!device->device_issue_pending);
 	BUG_ON(!device->dev);
 
-	WARN(dma_has_cap(DMA_SLAVE, device->cap_mask) && !device->directions,
-	     "this driver doesn't support generic slave capabilities reporting\n");
-
 	/* note: this only matters in the
 	 * CONFIG_ASYNC_TX_ENABLE_CHANNEL_SWITCH=n case
 	 */
diff --git a/drivers/dma/dw/core.c b/drivers/dma/dw/core.c
index 455b7a4..a8ad052 100644
--- a/drivers/dma/dw/core.c
+++ b/drivers/dma/dw/core.c
@@ -626,7 +626,7 @@ static irqreturn_t dw_dma_interrupt(int irq, void *dev_id)
 	dev_vdbg(dw->dma.dev, "%s: status=0x%x\n", __func__, status);
 
 	/* Check if we have any interrupt from the DMAC */
-	if (!status)
+	if (!status || !dw->in_use)
 		return IRQ_NONE;
 
 	/*
diff --git a/drivers/dma/dw/platform.c b/drivers/dma/dw/platform.c
index 6565a36..b2c3ae0 100644
--- a/drivers/dma/dw/platform.c
+++ b/drivers/dma/dw/platform.c
@@ -26,6 +26,8 @@
 
 #include "internal.h"
 
+#define DRV_NAME	"dw_dmac"
+
 static struct dma_chan *dw_dma_of_xlate(struct of_phandle_args *dma_spec,
 					struct of_dma *ofdma)
 {
@@ -284,7 +286,7 @@ static struct platform_driver dw_driver = {
 	.remove		= dw_remove,
 	.shutdown       = dw_shutdown,
 	.driver = {
-		.name	= "dw_dmac",
+		.name	= DRV_NAME,
 		.pm	= &dw_dev_pm_ops,
 		.of_match_table = of_match_ptr(dw_dma_of_id_table),
 		.acpi_match_table = ACPI_PTR(dw_dma_acpi_id_table),
@@ -305,3 +307,4 @@ module_exit(dw_exit);
 
 MODULE_LICENSE("GPL v2");
 MODULE_DESCRIPTION("Synopsys DesignWare DMA Controller platform driver");
+MODULE_ALIAS("platform:" DRV_NAME);
diff --git a/drivers/dma/edma.c b/drivers/dma/edma.c
index 276157f..53dbd3b 100644
--- a/drivers/dma/edma.c
+++ b/drivers/dma/edma.c
@@ -260,6 +260,13 @@ static int edma_terminate_all(struct dma_chan *chan)
 	 */
 	if (echan->edesc) {
 		int cyclic = echan->edesc->cyclic;
+
+		/*
+		 * free the running request descriptor
+		 * since it is not in any of the vdesc lists
+		 */
+		edma_desc_free(&echan->edesc->vdesc);
+
 		echan->edesc = NULL;
 		edma_stop(echan->ch_num);
 		/* Move the cyclic channel back to default queue */
diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c
index 18c0a13..66a0efb 100644
--- a/drivers/dma/imx-sdma.c
+++ b/drivers/dma/imx-sdma.c
@@ -531,6 +531,10 @@ static int sdma_run_channel0(struct sdma_engine *sdma)
 		dev_err(sdma->dev, "Timeout waiting for CH0 ready\n");
 	}
 
+	/* Set bits of CONFIG register with dynamic context switching */
+	if (readl(sdma->regs + SDMA_H_CONFIG) == 0)
+		writel_relaxed(SDMA_H_CONFIG_CSM, sdma->regs + SDMA_H_CONFIG);
+
 	return ret ? 0 : -ETIMEDOUT;
 }
 
@@ -1394,9 +1398,6 @@ static int sdma_init(struct sdma_engine *sdma)
 
 	writel_relaxed(ccb_phys, sdma->regs + SDMA_H_C0PTR);
 
-	/* Set bits of CONFIG register with given context switching mode */
-	writel_relaxed(SDMA_H_CONFIG_CSM, sdma->regs + SDMA_H_CONFIG);
-
 	/* Initializes channel's priorities */
 	sdma_set_channel_priority(&sdma->channel[0], 7);
 
diff --git a/drivers/dma/intel_mid_dma.c b/drivers/dma/intel_mid_dma.c
deleted file mode 100644
index 5aaead9..0000000
--- a/drivers/dma/intel_mid_dma.c
+++ /dev/null
@@ -1,1447 +0,0 @@
-/*
- *  intel_mid_dma.c - Intel Langwell DMA Drivers
- *
- *  Copyright (C) 2008-10 Intel Corp
- *  Author: Vinod Koul <vinod.koul@intel.com>
- *  The driver design is based on dw_dmac driver
- *  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; version 2 of the License.
- *
- *  This program is distributed in the hope that it will be useful, but
- *  WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
- *
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- *
- */
-#include <linux/pci.h>
-#include <linux/interrupt.h>
-#include <linux/pm_runtime.h>
-#include <linux/intel_mid_dma.h>
-#include <linux/module.h>
-
-#include "dmaengine.h"
-
-#define MAX_CHAN	4 /*max ch across controllers*/
-#include "intel_mid_dma_regs.h"
-
-#define INTEL_MID_DMAC1_ID		0x0814
-#define INTEL_MID_DMAC2_ID		0x0813
-#define INTEL_MID_GP_DMAC2_ID		0x0827
-#define INTEL_MFLD_DMAC1_ID		0x0830
-#define LNW_PERIPHRAL_MASK_BASE		0xFFAE8008
-#define LNW_PERIPHRAL_MASK_SIZE		0x10
-#define LNW_PERIPHRAL_STATUS		0x0
-#define LNW_PERIPHRAL_MASK		0x8
-
-struct intel_mid_dma_probe_info {
-	u8 max_chan;
-	u8 ch_base;
-	u16 block_size;
-	u32 pimr_mask;
-};
-
-#define INFO(_max_chan, _ch_base, _block_size, _pimr_mask) \
-	((kernel_ulong_t)&(struct intel_mid_dma_probe_info) {	\
-		.max_chan = (_max_chan),			\
-		.ch_base = (_ch_base),				\
-		.block_size = (_block_size),			\
-		.pimr_mask = (_pimr_mask),			\
-	})
-
-/*****************************************************************************
-Utility Functions*/
-/**
- * get_ch_index	-	convert status to channel
- * @status: status mask
- * @base: dma ch base value
- *
- * Modify the status mask and return the channel index needing
- * attention (or -1 if neither)
- */
-static int get_ch_index(int *status, unsigned int base)
-{
-	int i;
-	for (i = 0; i < MAX_CHAN; i++) {
-		if (*status & (1 << (i + base))) {
-			*status = *status & ~(1 << (i + base));
-			pr_debug("MDMA: index %d New status %x\n", i, *status);
-			return i;
-		}
-	}
-	return -1;
-}
-
-/**
- * get_block_ts	-	calculates dma transaction length
- * @len: dma transfer length
- * @tx_width: dma transfer src width
- * @block_size: dma controller max block size
- *
- * Based on src width calculate the DMA trsaction length in data items
- * return data items or FFFF if exceeds max length for block
- */
-static int get_block_ts(int len, int tx_width, int block_size)
-{
-	int byte_width = 0, block_ts = 0;
-
-	switch (tx_width) {
-	case DMA_SLAVE_BUSWIDTH_1_BYTE:
-		byte_width = 1;
-		break;
-	case DMA_SLAVE_BUSWIDTH_2_BYTES:
-		byte_width = 2;
-		break;
-	case DMA_SLAVE_BUSWIDTH_4_BYTES:
-	default:
-		byte_width = 4;
-		break;
-	}
-
-	block_ts = len/byte_width;
-	if (block_ts > block_size)
-		block_ts = 0xFFFF;
-	return block_ts;
-}
-
-/*****************************************************************************
-DMAC1 interrupt Functions*/
-
-/**
- * dmac1_mask_periphral_intr -	mask the periphral interrupt
- * @mid: dma device for which masking is required
- *
- * Masks the DMA periphral interrupt
- * this is valid for DMAC1 family controllers only
- * This controller should have periphral mask registers already mapped
- */
-static void dmac1_mask_periphral_intr(struct middma_device *mid)
-{
-	u32 pimr;
-
-	if (mid->pimr_mask) {
-		pimr = readl(mid->mask_reg + LNW_PERIPHRAL_MASK);
-		pimr |= mid->pimr_mask;
-		writel(pimr, mid->mask_reg + LNW_PERIPHRAL_MASK);
-	}
-	return;
-}
-
-/**
- * dmac1_unmask_periphral_intr -	unmask the periphral interrupt
- * @midc: dma channel for which masking is required
- *
- * UnMasks the DMA periphral interrupt,
- * this is valid for DMAC1 family controllers only
- * This controller should have periphral mask registers already mapped
- */
-static void dmac1_unmask_periphral_intr(struct intel_mid_dma_chan *midc)
-{
-	u32 pimr;
-	struct middma_device *mid = to_middma_device(midc->chan.device);
-
-	if (mid->pimr_mask) {
-		pimr = readl(mid->mask_reg + LNW_PERIPHRAL_MASK);
-		pimr &= ~mid->pimr_mask;
-		writel(pimr, mid->mask_reg + LNW_PERIPHRAL_MASK);
-	}
-	return;
-}
-
-/**
- * enable_dma_interrupt -	enable the periphral interrupt
- * @midc: dma channel for which enable interrupt is required
- *
- * Enable the DMA periphral interrupt,
- * this is valid for DMAC1 family controllers only
- * This controller should have periphral mask registers already mapped
- */
-static void enable_dma_interrupt(struct intel_mid_dma_chan *midc)
-{
-	dmac1_unmask_periphral_intr(midc);
-
-	/*en ch interrupts*/
-	iowrite32(UNMASK_INTR_REG(midc->ch_id), midc->dma_base + MASK_TFR);
-	iowrite32(UNMASK_INTR_REG(midc->ch_id), midc->dma_base + MASK_ERR);
-	return;
-}
-
-/**
- * disable_dma_interrupt -	disable the periphral interrupt
- * @midc: dma channel for which disable interrupt is required
- *
- * Disable the DMA periphral interrupt,
- * this is valid for DMAC1 family controllers only
- * This controller should have periphral mask registers already mapped
- */
-static void disable_dma_interrupt(struct intel_mid_dma_chan *midc)
-{
-	/*Check LPE PISR, make sure fwd is disabled*/
-	iowrite32(MASK_INTR_REG(midc->ch_id), midc->dma_base + MASK_BLOCK);
-	iowrite32(MASK_INTR_REG(midc->ch_id), midc->dma_base + MASK_TFR);
-	iowrite32(MASK_INTR_REG(midc->ch_id), midc->dma_base + MASK_ERR);
-	return;
-}
-
-/*****************************************************************************
-DMA channel helper Functions*/
-/**
- * mid_desc_get		-	get a descriptor
- * @midc: dma channel for which descriptor is required
- *
- * Obtain a descriptor for the channel. Returns NULL if none are free.
- * Once the descriptor is returned it is private until put on another
- * list or freed
- */
-static struct intel_mid_dma_desc *midc_desc_get(struct intel_mid_dma_chan *midc)
-{
-	struct intel_mid_dma_desc *desc, *_desc;
-	struct intel_mid_dma_desc *ret = NULL;
-
-	spin_lock_bh(&midc->lock);
-	list_for_each_entry_safe(desc, _desc, &midc->free_list, desc_node) {
-		if (async_tx_test_ack(&desc->txd)) {
-			list_del(&desc->desc_node);
-			ret = desc;
-			break;
-		}
-	}
-	spin_unlock_bh(&midc->lock);
-	return ret;
-}
-
-/**
- * mid_desc_put		-	put a descriptor
- * @midc: dma channel for which descriptor is required
- * @desc: descriptor to put
- *
- * Return a descriptor from lwn_desc_get back to the free pool
- */
-static void midc_desc_put(struct intel_mid_dma_chan *midc,
-			struct intel_mid_dma_desc *desc)
-{
-	if (desc) {
-		spin_lock_bh(&midc->lock);
-		list_add_tail(&desc->desc_node, &midc->free_list);
-		spin_unlock_bh(&midc->lock);
-	}
-}
-/**
- * midc_dostart		-		begin a DMA transaction
- * @midc: channel for which txn is to be started
- * @first: first descriptor of series
- *
- * Load a transaction into the engine. This must be called with midc->lock
- * held and bh disabled.
- */
-static void midc_dostart(struct intel_mid_dma_chan *midc,
-			struct intel_mid_dma_desc *first)
-{
-	struct middma_device *mid = to_middma_device(midc->chan.device);
-
-	/*  channel is idle */
-	if (midc->busy && test_ch_en(midc->dma_base, midc->ch_id)) {
-		/*error*/
-		pr_err("ERR_MDMA: channel is busy in start\n");
-		/* The tasklet will hopefully advance the queue... */
-		return;
-	}
-	midc->busy = true;
-	/*write registers and en*/
-	iowrite32(first->sar, midc->ch_regs + SAR);
-	iowrite32(first->dar, midc->ch_regs + DAR);
-	iowrite32(first->lli_phys, midc->ch_regs + LLP);
-	iowrite32(first->cfg_hi, midc->ch_regs + CFG_HIGH);
-	iowrite32(first->cfg_lo, midc->ch_regs + CFG_LOW);
-	iowrite32(first->ctl_lo, midc->ch_regs + CTL_LOW);
-	iowrite32(first->ctl_hi, midc->ch_regs + CTL_HIGH);
-	pr_debug("MDMA:TX SAR %x,DAR %x,CFGL %x,CFGH %x,CTLH %x, CTLL %x\n",
-		(int)first->sar, (int)first->dar, first->cfg_hi,
-		first->cfg_lo, first->ctl_hi, first->ctl_lo);
-	first->status = DMA_IN_PROGRESS;
-
-	iowrite32(ENABLE_CHANNEL(midc->ch_id), mid->dma_base + DMA_CHAN_EN);
-}
-
-/**
- * midc_descriptor_complete	-	process completed descriptor
- * @midc: channel owning the descriptor
- * @desc: the descriptor itself
- *
- * Process a completed descriptor and perform any callbacks upon
- * the completion. The completion handling drops the lock during the
- * callbacks but must be called with the lock held.
- */
-static void midc_descriptor_complete(struct intel_mid_dma_chan *midc,
-		struct intel_mid_dma_desc *desc)
-		__releases(&midc->lock) __acquires(&midc->lock)
-{
-	struct dma_async_tx_descriptor	*txd = &desc->txd;
-	dma_async_tx_callback callback_txd = NULL;
-	struct intel_mid_dma_lli	*llitem;
-	void *param_txd = NULL;
-
-	dma_cookie_complete(txd);
-	callback_txd = txd->callback;
-	param_txd = txd->callback_param;
-
-	if (desc->lli != NULL) {
-		/*clear the DONE bit of completed LLI in memory*/
-		llitem = desc->lli + desc->current_lli;
-		llitem->ctl_hi &= CLEAR_DONE;
-		if (desc->current_lli < desc->lli_length-1)
-			(desc->current_lli)++;
-		else
-			desc->current_lli = 0;
-	}
-	spin_unlock_bh(&midc->lock);
-	if (callback_txd) {
-		pr_debug("MDMA: TXD callback set ... calling\n");
-		callback_txd(param_txd);
-	}
-	if (midc->raw_tfr) {
-		desc->status = DMA_COMPLETE;
-		if (desc->lli != NULL) {
-			pci_pool_free(desc->lli_pool, desc->lli,
-						desc->lli_phys);
-			pci_pool_destroy(desc->lli_pool);
-			desc->lli = NULL;
-		}
-		list_move(&desc->desc_node, &midc->free_list);
-		midc->busy = false;
-	}
-	spin_lock_bh(&midc->lock);
-
-}
-/**
- * midc_scan_descriptors -		check the descriptors in channel
- *					mark completed when tx is completete
- * @mid: device
- * @midc: channel to scan
- *
- * Walk the descriptor chain for the device and process any entries
- * that are complete.
- */
-static void midc_scan_descriptors(struct middma_device *mid,
-				struct intel_mid_dma_chan *midc)
-{
-	struct intel_mid_dma_desc *desc = NULL, *_desc = NULL;
-
-	/*tx is complete*/
-	list_for_each_entry_safe(desc, _desc, &midc->active_list, desc_node) {
-		if (desc->status == DMA_IN_PROGRESS)
-			midc_descriptor_complete(midc, desc);
-	}
-	return;
-	}
-/**
- * midc_lli_fill_sg -		Helper function to convert
- *				SG list to Linked List Items.
- *@midc: Channel
- *@desc: DMA descriptor
- *@sglist: Pointer to SG list
- *@sglen: SG list length
- *@flags: DMA transaction flags
- *
- * Walk through the SG list and convert the SG list into Linked
- * List Items (LLI).
- */
-static int midc_lli_fill_sg(struct intel_mid_dma_chan *midc,
-				struct intel_mid_dma_desc *desc,
-				struct scatterlist *sglist,
-				unsigned int sglen,
-				unsigned int flags)
-{
-	struct intel_mid_dma_slave *mids;
-	struct scatterlist  *sg;
-	dma_addr_t lli_next, sg_phy_addr;
-	struct intel_mid_dma_lli *lli_bloc_desc;
-	union intel_mid_dma_ctl_lo ctl_lo;
-	union intel_mid_dma_ctl_hi ctl_hi;
-	int i;
-
-	pr_debug("MDMA: Entered midc_lli_fill_sg\n");
-	mids = midc->mid_slave;
-
-	lli_bloc_desc = desc->lli;
-	lli_next = desc->lli_phys;
-
-	ctl_lo.ctl_lo = desc->ctl_lo;
-	ctl_hi.ctl_hi = desc->ctl_hi;
-	for_each_sg(sglist, sg, sglen, i) {
-		/*Populate CTL_LOW and LLI values*/
-		if (i != sglen - 1) {
-			lli_next = lli_next +
-				sizeof(struct intel_mid_dma_lli);
-		} else {
-		/*Check for circular list, otherwise terminate LLI to ZERO*/
-			if (flags & DMA_PREP_CIRCULAR_LIST) {
-				pr_debug("MDMA: LLI is configured in circular mode\n");
-				lli_next = desc->lli_phys;
-			} else {
-				lli_next = 0;
-				ctl_lo.ctlx.llp_dst_en = 0;
-				ctl_lo.ctlx.llp_src_en = 0;
-			}
-		}
-		/*Populate CTL_HI values*/
-		ctl_hi.ctlx.block_ts = get_block_ts(sg_dma_len(sg),
-							desc->width,
-							midc->dma->block_size);
-		/*Populate SAR and DAR values*/
-		sg_phy_addr = sg_dma_address(sg);
-		if (desc->dirn ==  DMA_MEM_TO_DEV) {
-			lli_bloc_desc->sar  = sg_phy_addr;
-			lli_bloc_desc->dar  = mids->dma_slave.dst_addr;
-		} else if (desc->dirn ==  DMA_DEV_TO_MEM) {
-			lli_bloc_desc->sar  = mids->dma_slave.src_addr;
-			lli_bloc_desc->dar  = sg_phy_addr;
-		}
-		/*Copy values into block descriptor in system memroy*/
-		lli_bloc_desc->llp = lli_next;
-		lli_bloc_desc->ctl_lo = ctl_lo.ctl_lo;
-		lli_bloc_desc->ctl_hi = ctl_hi.ctl_hi;
-
-		lli_bloc_desc++;
-	}
-	/*Copy very first LLI values to descriptor*/
-	desc->ctl_lo = desc->lli->ctl_lo;
-	desc->ctl_hi = desc->lli->ctl_hi;
-	desc->sar = desc->lli->sar;
-	desc->dar = desc->lli->dar;
-
-	return 0;
-}
-/*****************************************************************************
-DMA engine callback Functions*/
-/**
- * intel_mid_dma_tx_submit -	callback to submit DMA transaction
- * @tx: dma engine descriptor
- *
- * Submit the DMA transaction for this descriptor, start if ch idle
- */
-static dma_cookie_t intel_mid_dma_tx_submit(struct dma_async_tx_descriptor *tx)
-{
-	struct intel_mid_dma_desc	*desc = to_intel_mid_dma_desc(tx);
-	struct intel_mid_dma_chan	*midc = to_intel_mid_dma_chan(tx->chan);
-	dma_cookie_t		cookie;
-
-	spin_lock_bh(&midc->lock);
-	cookie = dma_cookie_assign(tx);
-
-	if (list_empty(&midc->active_list))
-		list_add_tail(&desc->desc_node, &midc->active_list);
-	else
-		list_add_tail(&desc->desc_node, &midc->queue);
-
-	midc_dostart(midc, desc);
-	spin_unlock_bh(&midc->lock);
-
-	return cookie;
-}
-
-/**
- * intel_mid_dma_issue_pending -	callback to issue pending txn
- * @chan: chan where pending trascation needs to be checked and submitted
- *
- * Call for scan to issue pending descriptors
- */
-static void intel_mid_dma_issue_pending(struct dma_chan *chan)
-{
-	struct intel_mid_dma_chan	*midc = to_intel_mid_dma_chan(chan);
-
-	spin_lock_bh(&midc->lock);
-	if (!list_empty(&midc->queue))
-		midc_scan_descriptors(to_middma_device(chan->device), midc);
-	spin_unlock_bh(&midc->lock);
-}
-
-/**
- * intel_mid_dma_tx_status -	Return status of txn
- * @chan: chan for where status needs to be checked
- * @cookie: cookie for txn
- * @txstate: DMA txn state
- *
- * Return status of DMA txn
- */
-static enum dma_status intel_mid_dma_tx_status(struct dma_chan *chan,
-						dma_cookie_t cookie,
-						struct dma_tx_state *txstate)
-{
-	struct intel_mid_dma_chan *midc = to_intel_mid_dma_chan(chan);
-	enum dma_status ret;
-
-	ret = dma_cookie_status(chan, cookie, txstate);
-	if (ret != DMA_COMPLETE) {
-		spin_lock_bh(&midc->lock);
-		midc_scan_descriptors(to_middma_device(chan->device), midc);
-		spin_unlock_bh(&midc->lock);
-
-		ret = dma_cookie_status(chan, cookie, txstate);
-	}
-
-	return ret;
-}
-
-static int intel_mid_dma_config(struct dma_chan *chan,
-				struct dma_slave_config *slave)
-{
-	struct intel_mid_dma_chan	*midc = to_intel_mid_dma_chan(chan);
-	struct intel_mid_dma_slave *mid_slave;
-
-	BUG_ON(!midc);
-	BUG_ON(!slave);
-	pr_debug("MDMA: slave control called\n");
-
-	mid_slave = to_intel_mid_dma_slave(slave);
-
-	BUG_ON(!mid_slave);
-
-	midc->mid_slave = mid_slave;
-	return 0;
-}
-
-static int intel_mid_dma_terminate_all(struct dma_chan *chan)
-{
-	struct intel_mid_dma_chan	*midc = to_intel_mid_dma_chan(chan);
-	struct middma_device	*mid = to_middma_device(chan->device);
-	struct intel_mid_dma_desc	*desc, *_desc;
-	union intel_mid_dma_cfg_lo cfg_lo;
-
-	spin_lock_bh(&midc->lock);
-	if (midc->busy == false) {
-		spin_unlock_bh(&midc->lock);
-		return 0;
-	}
-	/*Suspend and disable the channel*/
-	cfg_lo.cfg_lo = ioread32(midc->ch_regs + CFG_LOW);
-	cfg_lo.cfgx.ch_susp = 1;
-	iowrite32(cfg_lo.cfg_lo, midc->ch_regs + CFG_LOW);
-	iowrite32(DISABLE_CHANNEL(midc->ch_id), mid->dma_base + DMA_CHAN_EN);
-	midc->busy = false;
-	/* Disable interrupts */
-	disable_dma_interrupt(midc);
-	midc->descs_allocated = 0;
-
-	spin_unlock_bh(&midc->lock);
-	list_for_each_entry_safe(desc, _desc, &midc->active_list, desc_node) {
-		if (desc->lli != NULL) {
-			pci_pool_free(desc->lli_pool, desc->lli,
-						desc->lli_phys);
-			pci_pool_destroy(desc->lli_pool);
-			desc->lli = NULL;
-		}
-		list_move(&desc->desc_node, &midc->free_list);
-	}
-	return 0;
-}
-
-
-/**
- * intel_mid_dma_prep_memcpy -	Prep memcpy txn
- * @chan: chan for DMA transfer
- * @dest: destn address
- * @src: src address
- * @len: DMA transfer len
- * @flags: DMA flags
- *
- * Perform a DMA memcpy. Note we support slave periphral DMA transfers only
- * The periphral txn details should be filled in slave structure properly
- * Returns the descriptor for this txn
- */
-static struct dma_async_tx_descriptor *intel_mid_dma_prep_memcpy(
-			struct dma_chan *chan, dma_addr_t dest,
-			dma_addr_t src, size_t len, unsigned long flags)
-{
-	struct intel_mid_dma_chan *midc;
-	struct intel_mid_dma_desc *desc = NULL;
-	struct intel_mid_dma_slave *mids;
-	union intel_mid_dma_ctl_lo ctl_lo;
-	union intel_mid_dma_ctl_hi ctl_hi;
-	union intel_mid_dma_cfg_lo cfg_lo;
-	union intel_mid_dma_cfg_hi cfg_hi;
-	enum dma_slave_buswidth width;
-
-	pr_debug("MDMA: Prep for memcpy\n");
-	BUG_ON(!chan);
-	if (!len)
-		return NULL;
-
-	midc = to_intel_mid_dma_chan(chan);
-	BUG_ON(!midc);
-
-	mids = midc->mid_slave;
-	BUG_ON(!mids);
-
-	pr_debug("MDMA:called for DMA %x CH %d Length %zu\n",
-				midc->dma->pci_id, midc->ch_id, len);
-	pr_debug("MDMA:Cfg passed Mode %x, Dirn %x, HS %x, Width %x\n",
-			mids->cfg_mode, mids->dma_slave.direction,
-			mids->hs_mode, mids->dma_slave.src_addr_width);
-
-	/*calculate CFG_LO*/
-	if (mids->hs_mode == LNW_DMA_SW_HS) {
-		cfg_lo.cfg_lo = 0;
-		cfg_lo.cfgx.hs_sel_dst = 1;
-		cfg_lo.cfgx.hs_sel_src = 1;
-	} else if (mids->hs_mode == LNW_DMA_HW_HS)
-		cfg_lo.cfg_lo = 0x00000;
-
-	/*calculate CFG_HI*/
-	if (mids->cfg_mode == LNW_DMA_MEM_TO_MEM) {
-		/*SW HS only*/
-		cfg_hi.cfg_hi = 0;
-	} else {
-		cfg_hi.cfg_hi = 0;
-		if (midc->dma->pimr_mask) {
-			cfg_hi.cfgx.protctl = 0x0; /*default value*/
-			cfg_hi.cfgx.fifo_mode = 1;
-			if (mids->dma_slave.direction == DMA_MEM_TO_DEV) {
-				cfg_hi.cfgx.src_per = 0;
-				if (mids->device_instance == 0)
-					cfg_hi.cfgx.dst_per = 3;
-				if (mids->device_instance == 1)
-					cfg_hi.cfgx.dst_per = 1;
-			} else if (mids->dma_slave.direction == DMA_DEV_TO_MEM) {
-				if (mids->device_instance == 0)
-					cfg_hi.cfgx.src_per = 2;
-				if (mids->device_instance == 1)
-					cfg_hi.cfgx.src_per = 0;
-				cfg_hi.cfgx.dst_per = 0;
-			}
-		} else {
-			cfg_hi.cfgx.protctl = 0x1; /*default value*/
-			cfg_hi.cfgx.src_per = cfg_hi.cfgx.dst_per =
-					midc->ch_id - midc->dma->chan_base;
-		}
-	}
-
-	/*calculate CTL_HI*/
-	ctl_hi.ctlx.reser = 0;
-	ctl_hi.ctlx.done  = 0;
-	width = mids->dma_slave.src_addr_width;
-
-	ctl_hi.ctlx.block_ts = get_block_ts(len, width, midc->dma->block_size);
-	pr_debug("MDMA:calc len %d for block size %d\n",
-				ctl_hi.ctlx.block_ts, midc->dma->block_size);
-	/*calculate CTL_LO*/
-	ctl_lo.ctl_lo = 0;
-	ctl_lo.ctlx.int_en = 1;
-	ctl_lo.ctlx.dst_msize = mids->dma_slave.src_maxburst;
-	ctl_lo.ctlx.src_msize = mids->dma_slave.dst_maxburst;
-
-	/*
-	 * Here we need some translation from "enum dma_slave_buswidth"
-	 * to the format for our dma controller
-	 *		standard	intel_mid_dmac's format
-	 *		 1 Byte			0b000
-	 *		 2 Bytes		0b001
-	 *		 4 Bytes		0b010
-	 */
-	ctl_lo.ctlx.dst_tr_width = mids->dma_slave.dst_addr_width / 2;
-	ctl_lo.ctlx.src_tr_width = mids->dma_slave.src_addr_width / 2;
-
-	if (mids->cfg_mode == LNW_DMA_MEM_TO_MEM) {
-		ctl_lo.ctlx.tt_fc = 0;
-		ctl_lo.ctlx.sinc = 0;
-		ctl_lo.ctlx.dinc = 0;
-	} else {
-		if (mids->dma_slave.direction == DMA_MEM_TO_DEV) {
-			ctl_lo.ctlx.sinc = 0;
-			ctl_lo.ctlx.dinc = 2;
-			ctl_lo.ctlx.tt_fc = 1;
-		} else if (mids->dma_slave.direction == DMA_DEV_TO_MEM) {
-			ctl_lo.ctlx.sinc = 2;
-			ctl_lo.ctlx.dinc = 0;
-			ctl_lo.ctlx.tt_fc = 2;
-		}
-	}
-
-	pr_debug("MDMA:Calc CTL LO %x, CTL HI %x, CFG LO %x, CFG HI %x\n",
-		ctl_lo.ctl_lo, ctl_hi.ctl_hi, cfg_lo.cfg_lo, cfg_hi.cfg_hi);
-
-	enable_dma_interrupt(midc);
-
-	desc = midc_desc_get(midc);
-	if (desc == NULL)
-		goto err_desc_get;
-	desc->sar = src;
-	desc->dar = dest ;
-	desc->len = len;
-	desc->cfg_hi = cfg_hi.cfg_hi;
-	desc->cfg_lo = cfg_lo.cfg_lo;
-	desc->ctl_lo = ctl_lo.ctl_lo;
-	desc->ctl_hi = ctl_hi.ctl_hi;
-	desc->width = width;
-	desc->dirn = mids->dma_slave.direction;
-	desc->lli_phys = 0;
-	desc->lli = NULL;
-	desc->lli_pool = NULL;
-	return &desc->txd;
-
-err_desc_get:
-	pr_err("ERR_MDMA: Failed to get desc\n");
-	midc_desc_put(midc, desc);
-	return NULL;
-}
-/**
- * intel_mid_dma_prep_slave_sg -	Prep slave sg txn
- * @chan: chan for DMA transfer
- * @sgl: scatter gather list
- * @sg_len: length of sg txn
- * @direction: DMA transfer dirtn
- * @flags: DMA flags
- * @context: transfer context (ignored)
- *
- * Prepares LLI based periphral transfer
- */
-static struct dma_async_tx_descriptor *intel_mid_dma_prep_slave_sg(
-			struct dma_chan *chan, struct scatterlist *sgl,
-			unsigned int sg_len, enum dma_transfer_direction direction,
-			unsigned long flags, void *context)
-{
-	struct intel_mid_dma_chan *midc = NULL;
-	struct intel_mid_dma_slave *mids = NULL;
-	struct intel_mid_dma_desc *desc = NULL;
-	struct dma_async_tx_descriptor *txd = NULL;
-	union intel_mid_dma_ctl_lo ctl_lo;
-
-	pr_debug("MDMA: Prep for slave SG\n");
-
-	if (!sg_len) {
-		pr_err("MDMA: Invalid SG length\n");
-		return NULL;
-	}
-	midc = to_intel_mid_dma_chan(chan);
-	BUG_ON(!midc);
-
-	mids = midc->mid_slave;
-	BUG_ON(!mids);
-
-	if (!midc->dma->pimr_mask) {
-		/* We can still handle sg list with only one item */
-		if (sg_len == 1) {
-			txd = intel_mid_dma_prep_memcpy(chan,
-						mids->dma_slave.dst_addr,
-						mids->dma_slave.src_addr,
-						sg_dma_len(sgl),
-						flags);
-			return txd;
-		} else {
-			pr_warn("MDMA: SG list is not supported by this controller\n");
-			return  NULL;
-		}
-	}
-
-	pr_debug("MDMA: SG Length = %d, direction = %d, Flags = %#lx\n",
-			sg_len, direction, flags);
-
-	txd = intel_mid_dma_prep_memcpy(chan, 0, 0, sg_dma_len(sgl), flags);
-	if (NULL == txd) {
-		pr_err("MDMA: Prep memcpy failed\n");
-		return NULL;
-	}
-
-	desc = to_intel_mid_dma_desc(txd);
-	desc->dirn = direction;
-	ctl_lo.ctl_lo = desc->ctl_lo;
-	ctl_lo.ctlx.llp_dst_en = 1;
-	ctl_lo.ctlx.llp_src_en = 1;
-	desc->ctl_lo = ctl_lo.ctl_lo;
-	desc->lli_length = sg_len;
-	desc->current_lli = 0;
-	/* DMA coherent memory pool for LLI descriptors*/
-	desc->lli_pool = pci_pool_create("intel_mid_dma_lli_pool",
-				midc->dma->pdev,
-				(sizeof(struct intel_mid_dma_lli)*sg_len),
-				32, 0);
-	if (NULL == desc->lli_pool) {
-		pr_err("MID_DMA:LLI pool create failed\n");
-		return NULL;
-	}
-
-	desc->lli = pci_pool_alloc(desc->lli_pool, GFP_KERNEL, &desc->lli_phys);
-	if (!desc->lli) {
-		pr_err("MID_DMA: LLI alloc failed\n");
-		pci_pool_destroy(desc->lli_pool);
-		return NULL;
-	}
-
-	midc_lli_fill_sg(midc, desc, sgl, sg_len, flags);
-	if (flags & DMA_PREP_INTERRUPT) {
-		iowrite32(UNMASK_INTR_REG(midc->ch_id),
-				midc->dma_base + MASK_BLOCK);
-		pr_debug("MDMA:Enabled Block interrupt\n");
-	}
-	return &desc->txd;
-}
-
-/**
- * intel_mid_dma_free_chan_resources -	Frees dma resources
- * @chan: chan requiring attention
- *
- * Frees the allocated resources on this DMA chan
- */
-static void intel_mid_dma_free_chan_resources(struct dma_chan *chan)
-{
-	struct intel_mid_dma_chan	*midc = to_intel_mid_dma_chan(chan);
-	struct middma_device	*mid = to_middma_device(chan->device);
-	struct intel_mid_dma_desc	*desc, *_desc;
-
-	if (true == midc->busy) {
-		/*trying to free ch in use!!!!!*/
-		pr_err("ERR_MDMA: trying to free ch in use\n");
-	}
-	spin_lock_bh(&midc->lock);
-	midc->descs_allocated = 0;
-	list_for_each_entry_safe(desc, _desc, &midc->active_list, desc_node) {
-		list_del(&desc->desc_node);
-		pci_pool_free(mid->dma_pool, desc, desc->txd.phys);
-	}
-	list_for_each_entry_safe(desc, _desc, &midc->free_list, desc_node) {
-		list_del(&desc->desc_node);
-		pci_pool_free(mid->dma_pool, desc, desc->txd.phys);
-	}
-	list_for_each_entry_safe(desc, _desc, &midc->queue, desc_node) {
-		list_del(&desc->desc_node);
-		pci_pool_free(mid->dma_pool, desc, desc->txd.phys);
-	}
-	spin_unlock_bh(&midc->lock);
-	midc->in_use = false;
-	midc->busy = false;
-	/* Disable CH interrupts */
-	iowrite32(MASK_INTR_REG(midc->ch_id), mid->dma_base + MASK_BLOCK);
-	iowrite32(MASK_INTR_REG(midc->ch_id), mid->dma_base + MASK_ERR);
-	pm_runtime_put(&mid->pdev->dev);
-}
-
-/**
- * intel_mid_dma_alloc_chan_resources -	Allocate dma resources
- * @chan: chan requiring attention
- *
- * Allocates DMA resources on this chan
- * Return the descriptors allocated
- */
-static int intel_mid_dma_alloc_chan_resources(struct dma_chan *chan)
-{
-	struct intel_mid_dma_chan	*midc = to_intel_mid_dma_chan(chan);
-	struct middma_device	*mid = to_middma_device(chan->device);
-	struct intel_mid_dma_desc	*desc;
-	dma_addr_t		phys;
-	int	i = 0;
-
-	pm_runtime_get_sync(&mid->pdev->dev);
-
-	if (mid->state == SUSPENDED) {
-		if (dma_resume(&mid->pdev->dev)) {
-			pr_err("ERR_MDMA: resume failed");
-			return -EFAULT;
-		}
-	}
-
-	/* ASSERT:  channel is idle */
-	if (test_ch_en(mid->dma_base, midc->ch_id)) {
-		/*ch is not idle*/
-		pr_err("ERR_MDMA: ch not idle\n");
-		pm_runtime_put(&mid->pdev->dev);
-		return -EIO;
-	}
-	dma_cookie_init(chan);
-
-	spin_lock_bh(&midc->lock);
-	while (midc->descs_allocated < DESCS_PER_CHANNEL) {
-		spin_unlock_bh(&midc->lock);
-		desc = pci_pool_alloc(mid->dma_pool, GFP_KERNEL, &phys);
-		if (!desc) {
-			pr_err("ERR_MDMA: desc failed\n");
-			pm_runtime_put(&mid->pdev->dev);
-			return -ENOMEM;
-			/*check*/
-		}
-		dma_async_tx_descriptor_init(&desc->txd, chan);
-		desc->txd.tx_submit = intel_mid_dma_tx_submit;
-		desc->txd.flags = DMA_CTRL_ACK;
-		desc->txd.phys = phys;
-		spin_lock_bh(&midc->lock);
-		i = ++midc->descs_allocated;
-		list_add_tail(&desc->desc_node, &midc->free_list);
-	}
-	spin_unlock_bh(&midc->lock);
-	midc->in_use = true;
-	midc->busy = false;
-	pr_debug("MID_DMA: Desc alloc done ret: %d desc\n", i);
-	return i;
-}
-
-/**
- * midc_handle_error -	Handle DMA txn error
- * @mid: controller where error occurred
- * @midc: chan where error occurred
- *
- * Scan the descriptor for error
- */
-static void midc_handle_error(struct middma_device *mid,
-		struct intel_mid_dma_chan *midc)
-{
-	midc_scan_descriptors(mid, midc);
-}
-
-/**
- * dma_tasklet -	DMA interrupt tasklet
- * @data: tasklet arg (the controller structure)
- *
- * Scan the controller for interrupts for completion/error
- * Clear the interrupt and call for handling completion/error
- */
-static void dma_tasklet(unsigned long data)
-{
-	struct middma_device *mid = NULL;
-	struct intel_mid_dma_chan *midc = NULL;
-	u32 status, raw_tfr, raw_block;
-	int i;
-
-	mid = (struct middma_device *)data;
-	if (mid == NULL) {
-		pr_err("ERR_MDMA: tasklet Null param\n");
-		return;
-	}
-	pr_debug("MDMA: in tasklet for device %x\n", mid->pci_id);
-	raw_tfr = ioread32(mid->dma_base + RAW_TFR);
-	raw_block = ioread32(mid->dma_base + RAW_BLOCK);
-	status = raw_tfr | raw_block;
-	status &= mid->intr_mask;
-	while (status) {
-		/*txn interrupt*/
-		i = get_ch_index(&status, mid->chan_base);
-		if (i < 0) {
-			pr_err("ERR_MDMA:Invalid ch index %x\n", i);
-			return;
-		}
-		midc = &mid->ch[i];
-		if (midc == NULL) {
-			pr_err("ERR_MDMA:Null param midc\n");
-			return;
-		}
-		pr_debug("MDMA:Tx complete interrupt %x, Ch No %d Index %d\n",
-				status, midc->ch_id, i);
-		midc->raw_tfr = raw_tfr;
-		midc->raw_block = raw_block;
-		spin_lock_bh(&midc->lock);
-		/*clearing this interrupts first*/
-		iowrite32((1 << midc->ch_id), mid->dma_base + CLEAR_TFR);
-		if (raw_block) {
-			iowrite32((1 << midc->ch_id),
-				mid->dma_base + CLEAR_BLOCK);
-		}
-		midc_scan_descriptors(mid, midc);
-		pr_debug("MDMA:Scan of desc... complete, unmasking\n");
-		iowrite32(UNMASK_INTR_REG(midc->ch_id),
-				mid->dma_base + MASK_TFR);
-		if (raw_block) {
-			iowrite32(UNMASK_INTR_REG(midc->ch_id),
-				mid->dma_base + MASK_BLOCK);
-		}
-		spin_unlock_bh(&midc->lock);
-	}
-
-	status = ioread32(mid->dma_base + RAW_ERR);
-	status &= mid->intr_mask;
-	while (status) {
-		/*err interrupt*/
-		i = get_ch_index(&status, mid->chan_base);
-		if (i < 0) {
-			pr_err("ERR_MDMA:Invalid ch index %x\n", i);
-			return;
-		}
-		midc = &mid->ch[i];
-		if (midc == NULL) {
-			pr_err("ERR_MDMA:Null param midc\n");
-			return;
-		}
-		pr_debug("MDMA:Tx complete interrupt %x, Ch No %d Index %d\n",
-				status, midc->ch_id, i);
-
-		iowrite32((1 << midc->ch_id), mid->dma_base + CLEAR_ERR);
-		spin_lock_bh(&midc->lock);
-		midc_handle_error(mid, midc);
-		iowrite32(UNMASK_INTR_REG(midc->ch_id),
-				mid->dma_base + MASK_ERR);
-		spin_unlock_bh(&midc->lock);
-	}
-	pr_debug("MDMA:Exiting takslet...\n");
-	return;
-}
-
-static void dma_tasklet1(unsigned long data)
-{
-	pr_debug("MDMA:in takslet1...\n");
-	return dma_tasklet(data);
-}
-
-static void dma_tasklet2(unsigned long data)
-{
-	pr_debug("MDMA:in takslet2...\n");
-	return dma_tasklet(data);
-}
-
-/**
- * intel_mid_dma_interrupt -	DMA ISR
- * @irq: IRQ where interrupt occurred
- * @data: ISR cllback data (the controller structure)
- *
- * See if this is our interrupt if so then schedule the tasklet
- * otherwise ignore
- */
-static irqreturn_t intel_mid_dma_interrupt(int irq, void *data)
-{
-	struct middma_device *mid = data;
-	u32 tfr_status, err_status;
-	int call_tasklet = 0;
-
-	tfr_status = ioread32(mid->dma_base + RAW_TFR);
-	err_status = ioread32(mid->dma_base + RAW_ERR);
-	if (!tfr_status && !err_status)
-		return IRQ_NONE;
-
-	/*DMA Interrupt*/
-	pr_debug("MDMA:Got an interrupt on irq %d\n", irq);
-	pr_debug("MDMA: Status %x, Mask %x\n", tfr_status, mid->intr_mask);
-	tfr_status &= mid->intr_mask;
-	if (tfr_status) {
-		/*need to disable intr*/
-		iowrite32((tfr_status << INT_MASK_WE), mid->dma_base + MASK_TFR);
-		iowrite32((tfr_status << INT_MASK_WE), mid->dma_base + MASK_BLOCK);
-		pr_debug("MDMA: Calling tasklet %x\n", tfr_status);
-		call_tasklet = 1;
-	}
-	err_status &= mid->intr_mask;
-	if (err_status) {
-		iowrite32((err_status << INT_MASK_WE),
-			  mid->dma_base + MASK_ERR);
-		call_tasklet = 1;
-	}
-	if (call_tasklet)
-		tasklet_schedule(&mid->tasklet);
-
-	return IRQ_HANDLED;
-}
-
-static irqreturn_t intel_mid_dma_interrupt1(int irq, void *data)
-{
-	return intel_mid_dma_interrupt(irq, data);
-}
-
-static irqreturn_t intel_mid_dma_interrupt2(int irq, void *data)
-{
-	return intel_mid_dma_interrupt(irq, data);
-}
-
-/**
- * mid_setup_dma -	Setup the DMA controller
- * @pdev: Controller PCI device structure
- *
- * Initialize the DMA controller, channels, registers with DMA engine,
- * ISR. Initialize DMA controller channels.
- */
-static int mid_setup_dma(struct pci_dev *pdev)
-{
-	struct middma_device *dma = pci_get_drvdata(pdev);
-	int err, i;
-
-	/* DMA coherent memory pool for DMA descriptor allocations */
-	dma->dma_pool = pci_pool_create("intel_mid_dma_desc_pool", pdev,
-					sizeof(struct intel_mid_dma_desc),
-					32, 0);
-	if (NULL == dma->dma_pool) {
-		pr_err("ERR_MDMA:pci_pool_create failed\n");
-		err = -ENOMEM;
-		goto err_dma_pool;
-	}
-
-	INIT_LIST_HEAD(&dma->common.channels);
-	dma->pci_id = pdev->device;
-	if (dma->pimr_mask) {
-		dma->mask_reg = ioremap(LNW_PERIPHRAL_MASK_BASE,
-					LNW_PERIPHRAL_MASK_SIZE);
-		if (dma->mask_reg == NULL) {
-			pr_err("ERR_MDMA:Can't map periphral intr space !!\n");
-			err = -ENOMEM;
-			goto err_ioremap;
-		}
-	} else
-		dma->mask_reg = NULL;
-
-	pr_debug("MDMA:Adding %d channel for this controller\n", dma->max_chan);
-	/*init CH structures*/
-	dma->intr_mask = 0;
-	dma->state = RUNNING;
-	for (i = 0; i < dma->max_chan; i++) {
-		struct intel_mid_dma_chan *midch = &dma->ch[i];
-
-		midch->chan.device = &dma->common;
-		dma_cookie_init(&midch->chan);
-		midch->ch_id = dma->chan_base + i;
-		pr_debug("MDMA:Init CH %d, ID %d\n", i, midch->ch_id);
-
-		midch->dma_base = dma->dma_base;
-		midch->ch_regs = dma->dma_base + DMA_CH_SIZE * midch->ch_id;
-		midch->dma = dma;
-		dma->intr_mask |= 1 << (dma->chan_base + i);
-		spin_lock_init(&midch->lock);
-
-		INIT_LIST_HEAD(&midch->active_list);
-		INIT_LIST_HEAD(&midch->queue);
-		INIT_LIST_HEAD(&midch->free_list);
-		/*mask interrupts*/
-		iowrite32(MASK_INTR_REG(midch->ch_id),
-			dma->dma_base + MASK_BLOCK);
-		iowrite32(MASK_INTR_REG(midch->ch_id),
-			dma->dma_base + MASK_SRC_TRAN);
-		iowrite32(MASK_INTR_REG(midch->ch_id),
-			dma->dma_base + MASK_DST_TRAN);
-		iowrite32(MASK_INTR_REG(midch->ch_id),
-			dma->dma_base + MASK_ERR);
-		iowrite32(MASK_INTR_REG(midch->ch_id),
-			dma->dma_base + MASK_TFR);
-
-		disable_dma_interrupt(midch);
-		list_add_tail(&midch->chan.device_node, &dma->common.channels);
-	}
-	pr_debug("MDMA: Calc Mask as %x for this controller\n", dma->intr_mask);
-
-	/*init dma structure*/
-	dma_cap_zero(dma->common.cap_mask);
-	dma_cap_set(DMA_MEMCPY, dma->common.cap_mask);
-	dma_cap_set(DMA_SLAVE, dma->common.cap_mask);
-	dma_cap_set(DMA_PRIVATE, dma->common.cap_mask);
-	dma->common.dev = &pdev->dev;
-
-	dma->common.device_alloc_chan_resources =
-					intel_mid_dma_alloc_chan_resources;
-	dma->common.device_free_chan_resources =
-					intel_mid_dma_free_chan_resources;
-
-	dma->common.device_tx_status = intel_mid_dma_tx_status;
-	dma->common.device_prep_dma_memcpy = intel_mid_dma_prep_memcpy;
-	dma->common.device_issue_pending = intel_mid_dma_issue_pending;
-	dma->common.device_prep_slave_sg = intel_mid_dma_prep_slave_sg;
-	dma->common.device_config = intel_mid_dma_config;
-	dma->common.device_terminate_all = intel_mid_dma_terminate_all;
-
-	/*enable dma cntrl*/
-	iowrite32(REG_BIT0, dma->dma_base + DMA_CFG);
-
-	/*register irq */
-	if (dma->pimr_mask) {
-		pr_debug("MDMA:Requesting irq shared for DMAC1\n");
-		err = request_irq(pdev->irq, intel_mid_dma_interrupt1,
-			IRQF_SHARED, "INTEL_MID_DMAC1", dma);
-		if (0 != err)
-			goto err_irq;
-	} else {
-		dma->intr_mask = 0x03;
-		pr_debug("MDMA:Requesting irq for DMAC2\n");
-		err = request_irq(pdev->irq, intel_mid_dma_interrupt2,
-			IRQF_SHARED, "INTEL_MID_DMAC2", dma);
-		if (0 != err)
-			goto err_irq;
-	}
-	/*register device w/ engine*/
-	err = dma_async_device_register(&dma->common);
-	if (0 != err) {
-		pr_err("ERR_MDMA:device_register failed: %d\n", err);
-		goto err_engine;
-	}
-	if (dma->pimr_mask) {
-		pr_debug("setting up tasklet1 for DMAC1\n");
-		tasklet_init(&dma->tasklet, dma_tasklet1, (unsigned long)dma);
-	} else {
-		pr_debug("setting up tasklet2 for DMAC2\n");
-		tasklet_init(&dma->tasklet, dma_tasklet2, (unsigned long)dma);
-	}
-	return 0;
-
-err_engine:
-	free_irq(pdev->irq, dma);
-err_irq:
-	if (dma->mask_reg)
-		iounmap(dma->mask_reg);
-err_ioremap:
-	pci_pool_destroy(dma->dma_pool);
-err_dma_pool:
-	pr_err("ERR_MDMA:setup_dma failed: %d\n", err);
-	return err;
-
-}
-
-/**
- * middma_shutdown -	Shutdown the DMA controller
- * @pdev: Controller PCI device structure
- *
- * Called by remove
- * Unregister DMa controller, clear all structures and free interrupt
- */
-static void middma_shutdown(struct pci_dev *pdev)
-{
-	struct middma_device *device = pci_get_drvdata(pdev);
-
-	dma_async_device_unregister(&device->common);
-	pci_pool_destroy(device->dma_pool);
-	if (device->mask_reg)
-		iounmap(device->mask_reg);
-	if (device->dma_base)
-		iounmap(device->dma_base);
-	free_irq(pdev->irq, device);
-	return;
-}
-
-/**
- * intel_mid_dma_probe -	PCI Probe
- * @pdev: Controller PCI device structure
- * @id: pci device id structure
- *
- * Initialize the PCI device, map BARs, query driver data.
- * Call setup_dma to complete contoller and chan initilzation
- */
-static int intel_mid_dma_probe(struct pci_dev *pdev,
-					const struct pci_device_id *id)
-{
-	struct middma_device *device;
-	u32 base_addr, bar_size;
-	struct intel_mid_dma_probe_info *info;
-	int err;
-
-	pr_debug("MDMA: probe for %x\n", pdev->device);
-	info = (void *)id->driver_data;
-	pr_debug("MDMA: CH %d, base %d, block len %d, Periphral mask %x\n",
-				info->max_chan, info->ch_base,
-				info->block_size, info->pimr_mask);
-
-	err = pci_enable_device(pdev);
-	if (err)
-		goto err_enable_device;
-
-	err = pci_request_regions(pdev, "intel_mid_dmac");
-	if (err)
-		goto err_request_regions;
-
-	err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
-	if (err)
-		goto err_set_dma_mask;
-
-	err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
-	if (err)
-		goto err_set_dma_mask;
-
-	device = kzalloc(sizeof(*device), GFP_KERNEL);
-	if (!device) {
-		pr_err("ERR_MDMA:kzalloc failed probe\n");
-		err = -ENOMEM;
-		goto err_kzalloc;
-	}
-	device->pdev = pci_dev_get(pdev);
-
-	base_addr = pci_resource_start(pdev, 0);
-	bar_size  = pci_resource_len(pdev, 0);
-	device->dma_base = ioremap_nocache(base_addr, DMA_REG_SIZE);
-	if (!device->dma_base) {
-		pr_err("ERR_MDMA:ioremap failed\n");
-		err = -ENOMEM;
-		goto err_ioremap;
-	}
-	pci_set_drvdata(pdev, device);
-	pci_set_master(pdev);
-	device->max_chan = info->max_chan;
-	device->chan_base = info->ch_base;
-	device->block_size = info->block_size;
-	device->pimr_mask = info->pimr_mask;
-
-	err = mid_setup_dma(pdev);
-	if (err)
-		goto err_dma;
-
-	pm_runtime_put_noidle(&pdev->dev);
-	pm_runtime_allow(&pdev->dev);
-	return 0;
-
-err_dma:
-	iounmap(device->dma_base);
-err_ioremap:
-	pci_dev_put(pdev);
-	kfree(device);
-err_kzalloc:
-err_set_dma_mask:
-	pci_release_regions(pdev);
-	pci_disable_device(pdev);
-err_request_regions:
-err_enable_device:
-	pr_err("ERR_MDMA:Probe failed %d\n", err);
-	return err;
-}
-
-/**
- * intel_mid_dma_remove -	PCI remove
- * @pdev: Controller PCI device structure
- *
- * Free up all resources and data
- * Call shutdown_dma to complete contoller and chan cleanup
- */
-static void intel_mid_dma_remove(struct pci_dev *pdev)
-{
-	struct middma_device *device = pci_get_drvdata(pdev);
-
-	pm_runtime_get_noresume(&pdev->dev);
-	pm_runtime_forbid(&pdev->dev);
-	middma_shutdown(pdev);
-	pci_dev_put(pdev);
-	kfree(device);
-	pci_release_regions(pdev);
-	pci_disable_device(pdev);
-}
-
-/* Power Management */
-/*
-* dma_suspend - PCI suspend function
-*
-* @pci: PCI device structure
-* @state: PM message
-*
-* This function is called by OS when a power event occurs
-*/
-static int dma_suspend(struct device *dev)
-{
-	struct pci_dev *pci = to_pci_dev(dev);
-	int i;
-	struct middma_device *device = pci_get_drvdata(pci);
-	pr_debug("MDMA: dma_suspend called\n");
-
-	for (i = 0; i < device->max_chan; i++) {
-		if (device->ch[i].in_use)
-			return -EAGAIN;
-	}
-	dmac1_mask_periphral_intr(device);
-	device->state = SUSPENDED;
-	pci_save_state(pci);
-	pci_disable_device(pci);
-	pci_set_power_state(pci, PCI_D3hot);
-	return 0;
-}
-
-/**
-* dma_resume - PCI resume function
-*
-* @pci:	PCI device structure
-*
-* This function is called by OS when a power event occurs
-*/
-int dma_resume(struct device *dev)
-{
-	struct pci_dev *pci = to_pci_dev(dev);
-	int ret;
-	struct middma_device *device = pci_get_drvdata(pci);
-
-	pr_debug("MDMA: dma_resume called\n");
-	pci_set_power_state(pci, PCI_D0);
-	pci_restore_state(pci);
-	ret = pci_enable_device(pci);
-	if (ret) {
-		pr_err("MDMA: device can't be enabled for %x\n", pci->device);
-		return ret;
-	}
-	device->state = RUNNING;
-	iowrite32(REG_BIT0, device->dma_base + DMA_CFG);
-	return 0;
-}
-
-static int dma_runtime_suspend(struct device *dev)
-{
-	struct pci_dev *pci_dev = to_pci_dev(dev);
-	struct middma_device *device = pci_get_drvdata(pci_dev);
-
-	device->state = SUSPENDED;
-	return 0;
-}
-
-static int dma_runtime_resume(struct device *dev)
-{
-	struct pci_dev *pci_dev = to_pci_dev(dev);
-	struct middma_device *device = pci_get_drvdata(pci_dev);
-
-	device->state = RUNNING;
-	iowrite32(REG_BIT0, device->dma_base + DMA_CFG);
-	return 0;
-}
-
-static int dma_runtime_idle(struct device *dev)
-{
-	struct pci_dev *pdev = to_pci_dev(dev);
-	struct middma_device *device = pci_get_drvdata(pdev);
-	int i;
-
-	for (i = 0; i < device->max_chan; i++) {
-		if (device->ch[i].in_use)
-			return -EAGAIN;
-	}
-
-	return 0;
-}
-
-/******************************************************************************
-* PCI stuff
-*/
-static struct pci_device_id intel_mid_dma_ids[] = {
-	{ PCI_VDEVICE(INTEL, INTEL_MID_DMAC1_ID),	INFO(2, 6, 4095, 0x200020)},
-	{ PCI_VDEVICE(INTEL, INTEL_MID_DMAC2_ID),	INFO(2, 0, 2047, 0)},
-	{ PCI_VDEVICE(INTEL, INTEL_MID_GP_DMAC2_ID),	INFO(2, 0, 2047, 0)},
-	{ PCI_VDEVICE(INTEL, INTEL_MFLD_DMAC1_ID),	INFO(4, 0, 4095, 0x400040)},
-	{ 0, }
-};
-MODULE_DEVICE_TABLE(pci, intel_mid_dma_ids);
-
-static const struct dev_pm_ops intel_mid_dma_pm = {
-	.runtime_suspend = dma_runtime_suspend,
-	.runtime_resume = dma_runtime_resume,
-	.runtime_idle = dma_runtime_idle,
-	.suspend = dma_suspend,
-	.resume = dma_resume,
-};
-
-static struct pci_driver intel_mid_dma_pci_driver = {
-	.name		=	"Intel MID DMA",
-	.id_table	=	intel_mid_dma_ids,
-	.probe		=	intel_mid_dma_probe,
-	.remove		=	intel_mid_dma_remove,
-#ifdef CONFIG_PM
-	.driver = {
-		.pm = &intel_mid_dma_pm,
-	},
-#endif
-};
-
-static int __init intel_mid_dma_init(void)
-{
-	pr_debug("INFO_MDMA: LNW DMA Driver Version %s\n",
-			INTEL_MID_DMA_DRIVER_VERSION);
-	return pci_register_driver(&intel_mid_dma_pci_driver);
-}
-fs_initcall(intel_mid_dma_init);
-
-static void __exit intel_mid_dma_exit(void)
-{
-	pci_unregister_driver(&intel_mid_dma_pci_driver);
-}
-module_exit(intel_mid_dma_exit);
-
-MODULE_AUTHOR("Vinod Koul <vinod.koul@intel.com>");
-MODULE_DESCRIPTION("Intel (R) MID DMAC Driver");
-MODULE_LICENSE("GPL v2");
-MODULE_VERSION(INTEL_MID_DMA_DRIVER_VERSION);
diff --git a/drivers/dma/intel_mid_dma_regs.h b/drivers/dma/intel_mid_dma_regs.h
deleted file mode 100644
index 17b4219..0000000
--- a/drivers/dma/intel_mid_dma_regs.h
+++ /dev/null
@@ -1,299 +0,0 @@
-/*
- *  intel_mid_dma_regs.h - Intel MID DMA Drivers
- *
- *  Copyright (C) 2008-10 Intel Corp
- *  Author: Vinod Koul <vinod.koul@intel.com>
- *  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; version 2 of the License.
- *
- *  This program is distributed in the hope that it will be useful, but
- *  WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
- *
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- *
- */
-#ifndef __INTEL_MID_DMAC_REGS_H__
-#define __INTEL_MID_DMAC_REGS_H__
-
-#include <linux/dmaengine.h>
-#include <linux/dmapool.h>
-#include <linux/pci_ids.h>
-
-#define INTEL_MID_DMA_DRIVER_VERSION "1.1.0"
-
-#define	REG_BIT0		0x00000001
-#define	REG_BIT8		0x00000100
-#define INT_MASK_WE		0x8
-#define CLEAR_DONE		0xFFFFEFFF
-#define UNMASK_INTR_REG(chan_num) \
-	((REG_BIT0 << chan_num) | (REG_BIT8 << chan_num))
-#define MASK_INTR_REG(chan_num) (REG_BIT8 << chan_num)
-
-#define ENABLE_CHANNEL(chan_num) \
-	((REG_BIT0 << chan_num) | (REG_BIT8 << chan_num))
-
-#define DISABLE_CHANNEL(chan_num) \
-	(REG_BIT8 << chan_num)
-
-#define DESCS_PER_CHANNEL	16
-/*DMA Registers*/
-/*registers associated with channel programming*/
-#define DMA_REG_SIZE		0x400
-#define DMA_CH_SIZE		0x58
-
-/*CH X REG = (DMA_CH_SIZE)*CH_NO + REG*/
-#define SAR			0x00 /* Source Address Register*/
-#define DAR			0x08 /* Destination Address Register*/
-#define LLP			0x10 /* Linked List Pointer Register*/
-#define CTL_LOW			0x18 /* Control Register*/
-#define CTL_HIGH		0x1C /* Control Register*/
-#define CFG_LOW			0x40 /* Configuration Register Low*/
-#define CFG_HIGH		0x44 /* Configuration Register high*/
-
-#define STATUS_TFR		0x2E8
-#define STATUS_BLOCK		0x2F0
-#define STATUS_ERR		0x308
-
-#define RAW_TFR			0x2C0
-#define RAW_BLOCK		0x2C8
-#define RAW_ERR			0x2E0
-
-#define MASK_TFR		0x310
-#define MASK_BLOCK		0x318
-#define MASK_SRC_TRAN		0x320
-#define MASK_DST_TRAN		0x328
-#define MASK_ERR		0x330
-
-#define CLEAR_TFR		0x338
-#define CLEAR_BLOCK		0x340
-#define CLEAR_SRC_TRAN		0x348
-#define CLEAR_DST_TRAN		0x350
-#define CLEAR_ERR		0x358
-
-#define INTR_STATUS		0x360
-#define DMA_CFG			0x398
-#define DMA_CHAN_EN		0x3A0
-
-/*DMA channel control registers*/
-union intel_mid_dma_ctl_lo {
-	struct {
-		u32	int_en:1;	/*enable or disable interrupts*/
-					/*should be 0*/
-		u32	dst_tr_width:3;	/*destination transfer width*/
-					/*usually 32 bits = 010*/
-		u32	src_tr_width:3; /*source transfer width*/
-					/*usually 32 bits = 010*/
-		u32	dinc:2;		/*destination address inc/dec*/
-					/*For mem:INC=00, Periphral NoINC=11*/
-		u32	sinc:2;		/*source address inc or dec, as above*/
-		u32	dst_msize:3;	/*destination burst transaction length*/
-					/*always = 16 ie 011*/
-		u32	src_msize:3;	/*source burst transaction length*/
-					/*always = 16 ie 011*/
-		u32	reser1:3;
-		u32	tt_fc:3;	/*transfer type and flow controller*/
-					/*M-M = 000
-					  P-M = 010
-					  M-P = 001*/
-		u32	dms:2;		/*destination master select = 0*/
-		u32	sms:2;		/*source master select = 0*/
-		u32	llp_dst_en:1;	/*enable/disable destination LLP = 0*/
-		u32	llp_src_en:1;	/*enable/disable source LLP = 0*/
-		u32	reser2:3;
-	} ctlx;
-	u32	ctl_lo;
-};
-
-union intel_mid_dma_ctl_hi {
-	struct {
-		u32	block_ts:12;	/*block transfer size*/
-		u32	done:1;		/*Done - updated by DMAC*/
-		u32	reser:19;	/*configured by DMAC*/
-	} ctlx;
-	u32	ctl_hi;
-
-};
-
-/*DMA channel configuration registers*/
-union intel_mid_dma_cfg_lo {
-	struct {
-		u32	reser1:5;
-		u32	ch_prior:3;	/*channel priority = 0*/
-		u32	ch_susp:1;	/*channel suspend = 0*/
-		u32	fifo_empty:1;	/*FIFO empty or not R bit = 0*/
-		u32	hs_sel_dst:1;	/*select HW/SW destn handshaking*/
-					/*HW = 0, SW = 1*/
-		u32	hs_sel_src:1;	/*select HW/SW src handshaking*/
-		u32	reser2:6;
-		u32	dst_hs_pol:1;	/*dest HS interface polarity*/
-		u32	src_hs_pol:1;	/*src HS interface polarity*/
-		u32	max_abrst:10;	/*max AMBA burst len = 0 (no sw limit*/
-		u32	reload_src:1;	/*auto reload src addr =1 if src is P*/
-		u32	reload_dst:1;	/*AR destn addr =1 if dstn is P*/
-	} cfgx;
-	u32	cfg_lo;
-};
-
-union intel_mid_dma_cfg_hi {
-	struct {
-		u32	fcmode:1;	/*flow control mode = 1*/
-		u32	fifo_mode:1;	/*FIFO mode select = 1*/
-		u32	protctl:3;	/*protection control = 0*/
-		u32	rsvd:2;
-		u32	src_per:4;	/*src hw HS interface*/
-		u32	dst_per:4;	/*dstn hw HS interface*/
-		u32	reser2:17;
-	} cfgx;
-	u32	cfg_hi;
-};
-
-
-/**
- * struct intel_mid_dma_chan - internal mid representation of a DMA channel
- * @chan: dma_chan strcture represetation for mid chan
- * @ch_regs: MMIO register space pointer to channel register
- * @dma_base: MMIO register space DMA engine base pointer
- * @ch_id: DMA channel id
- * @lock: channel spinlock
- * @active_list: current active descriptors
- * @queue: current queued up descriptors
- * @free_list: current free descriptors
- * @slave: dma slave structure
- * @descs_allocated: total number of descriptors allocated
- * @dma: dma device structure pointer
- * @busy: bool representing if ch is busy (active txn) or not
- * @in_use: bool representing if ch is in use or not
- * @raw_tfr: raw trf interrupt received
- * @raw_block: raw block interrupt received
- */
-struct intel_mid_dma_chan {
-	struct dma_chan		chan;
-	void __iomem		*ch_regs;
-	void __iomem		*dma_base;
-	int			ch_id;
-	spinlock_t		lock;
-	struct list_head	active_list;
-	struct list_head	queue;
-	struct list_head	free_list;
-	unsigned int		descs_allocated;
-	struct middma_device	*dma;
-	bool			busy;
-	bool			in_use;
-	u32			raw_tfr;
-	u32			raw_block;
-	struct intel_mid_dma_slave *mid_slave;
-};
-
-static inline struct intel_mid_dma_chan *to_intel_mid_dma_chan(
-						struct dma_chan *chan)
-{
-	return container_of(chan, struct intel_mid_dma_chan, chan);
-}
-
-enum intel_mid_dma_state {
-	RUNNING = 0,
-	SUSPENDED,
-};
-/**
- * struct middma_device - internal representation of a DMA device
- * @pdev: PCI device
- * @dma_base: MMIO register space pointer of DMA
- * @dma_pool: for allocating DMA descriptors
- * @common: embedded struct dma_device
- * @tasklet: dma tasklet for processing interrupts
- * @ch: per channel data
- * @pci_id: DMA device PCI ID
- * @intr_mask: Interrupt mask to be used
- * @mask_reg: MMIO register for periphral mask
- * @chan_base: Base ch index (read from driver data)
- * @max_chan: max number of chs supported (from drv_data)
- * @block_size: Block size of DMA transfer supported (from drv_data)
- * @pimr_mask: MMIO register addr for periphral interrupt (from drv_data)
- * @state: dma PM device state
- */
-struct middma_device {
-	struct pci_dev		*pdev;
-	void __iomem		*dma_base;
-	struct pci_pool		*dma_pool;
-	struct dma_device	common;
-	struct tasklet_struct   tasklet;
-	struct intel_mid_dma_chan ch[MAX_CHAN];
-	unsigned int		pci_id;
-	unsigned int		intr_mask;
-	void __iomem		*mask_reg;
-	int			chan_base;
-	int			max_chan;
-	int			block_size;
-	unsigned int		pimr_mask;
-	enum intel_mid_dma_state state;
-};
-
-static inline struct middma_device *to_middma_device(struct dma_device *common)
-{
-	return container_of(common, struct middma_device, common);
-}
-
-struct intel_mid_dma_desc {
-	void __iomem			*block; /*ch ptr*/
-	struct list_head		desc_node;
-	struct dma_async_tx_descriptor	txd;
-	size_t				len;
-	dma_addr_t			sar;
-	dma_addr_t			dar;
-	u32				cfg_hi;
-	u32				cfg_lo;
-	u32				ctl_lo;
-	u32				ctl_hi;
-	struct pci_pool			*lli_pool;
-	struct intel_mid_dma_lli	*lli;
-	dma_addr_t			lli_phys;
-	unsigned int			lli_length;
-	unsigned int			current_lli;
-	dma_addr_t			next;
-	enum dma_transfer_direction		dirn;
-	enum dma_status			status;
-	enum dma_slave_buswidth		width; /*width of DMA txn*/
-	enum intel_mid_dma_mode		cfg_mode; /*mode configuration*/
-
-};
-
-struct intel_mid_dma_lli {
-	dma_addr_t			sar;
-	dma_addr_t			dar;
-	dma_addr_t			llp;
-	u32				ctl_lo;
-	u32				ctl_hi;
-} __attribute__ ((packed));
-
-static inline int test_ch_en(void __iomem *dma, u32 ch_no)
-{
-	u32 en_reg = ioread32(dma + DMA_CHAN_EN);
-	return (en_reg >> ch_no) & 0x1;
-}
-
-static inline struct intel_mid_dma_desc *to_intel_mid_dma_desc
-		(struct dma_async_tx_descriptor *txd)
-{
-	return container_of(txd, struct intel_mid_dma_desc, txd);
-}
-
-static inline struct intel_mid_dma_slave *to_intel_mid_dma_slave
-		(struct dma_slave_config *slave)
-{
-	return container_of(slave, struct intel_mid_dma_slave, dma_slave);
-}
-
-
-int dma_resume(struct device *dev);
-
-#endif /*__INTEL_MID_DMAC_REGS_H__*/
diff --git a/drivers/dma/ioat/dma_v3.c b/drivers/dma/ioat/dma_v3.c
index 77a6dcf..194ec20 100644
--- a/drivers/dma/ioat/dma_v3.c
+++ b/drivers/dma/ioat/dma_v3.c
@@ -230,6 +230,10 @@ static bool is_bwd_noraid(struct pci_dev *pdev)
 	switch (pdev->device) {
 	case PCI_DEVICE_ID_INTEL_IOAT_BWD2:
 	case PCI_DEVICE_ID_INTEL_IOAT_BWD3:
+	case PCI_DEVICE_ID_INTEL_IOAT_BDXDE0:
+	case PCI_DEVICE_ID_INTEL_IOAT_BDXDE1:
+	case PCI_DEVICE_ID_INTEL_IOAT_BDXDE2:
+	case PCI_DEVICE_ID_INTEL_IOAT_BDXDE3:
 		return true;
 	default:
 		return false;
diff --git a/drivers/dma/mmp_pdma.c b/drivers/dma/mmp_pdma.c
index 8926f27..eb41004 100644
--- a/drivers/dma/mmp_pdma.c
+++ b/drivers/dma/mmp_pdma.c
@@ -219,6 +219,9 @@ static irqreturn_t mmp_pdma_int_handler(int irq, void *dev_id)
 
 	while (dint) {
 		i = __ffs(dint);
+		/* only handle interrupts belonging to pdma driver*/
+		if (i >= pdev->dma_channels)
+			break;
 		dint &= (dint - 1);
 		phy = &pdev->phy[i];
 		ret = mmp_pdma_chan_handler(irq, phy);
@@ -999,6 +1002,9 @@ static int mmp_pdma_probe(struct platform_device *op)
 	struct resource *iores;
 	int i, ret, irq = 0;
 	int dma_channels = 0, irq_num = 0;
+	const enum dma_slave_buswidth widths =
+		DMA_SLAVE_BUSWIDTH_1_BYTE   | DMA_SLAVE_BUSWIDTH_2_BYTES |
+		DMA_SLAVE_BUSWIDTH_4_BYTES;
 
 	pdev = devm_kzalloc(&op->dev, sizeof(*pdev), GFP_KERNEL);
 	if (!pdev)
@@ -1066,6 +1072,10 @@ static int mmp_pdma_probe(struct platform_device *op)
 	pdev->device.device_config = mmp_pdma_config;
 	pdev->device.device_terminate_all = mmp_pdma_terminate_all;
 	pdev->device.copy_align = PDMA_ALIGNMENT;
+	pdev->device.src_addr_widths = widths;
+	pdev->device.dst_addr_widths = widths;
+	pdev->device.directions = BIT(DMA_MEM_TO_DEV) | BIT(DMA_DEV_TO_MEM);
+	pdev->device.residue_granularity = DMA_RESIDUE_GRANULARITY_DESCRIPTOR;
 
 	if (pdev->dev->coherent_dma_mask)
 		dma_set_mask(pdev->dev, pdev->dev->coherent_dma_mask);
diff --git a/drivers/dma/mmp_tdma.c b/drivers/dma/mmp_tdma.c
index 70c2fa9..b6f4e1f 100644
--- a/drivers/dma/mmp_tdma.c
+++ b/drivers/dma/mmp_tdma.c
@@ -110,7 +110,7 @@ struct mmp_tdma_chan {
 	struct tasklet_struct		tasklet;
 
 	struct mmp_tdma_desc		*desc_arr;
-	phys_addr_t			desc_arr_phys;
+	dma_addr_t			desc_arr_phys;
 	int				desc_num;
 	enum dma_transfer_direction	dir;
 	dma_addr_t			dev_addr;
@@ -166,9 +166,12 @@ static void mmp_tdma_enable_chan(struct mmp_tdma_chan *tdmac)
 static int mmp_tdma_disable_chan(struct dma_chan *chan)
 {
 	struct mmp_tdma_chan *tdmac = to_mmp_tdma_chan(chan);
+	u32 tdcr;
 
-	writel(readl(tdmac->reg_base + TDCR) & ~TDCR_CHANEN,
-					tdmac->reg_base + TDCR);
+	tdcr = readl(tdmac->reg_base + TDCR);
+	tdcr |= TDCR_ABR;
+	tdcr &= ~TDCR_CHANEN;
+	writel(tdcr, tdmac->reg_base + TDCR);
 
 	tdmac->status = DMA_COMPLETE;
 
@@ -296,12 +299,27 @@ static int mmp_tdma_clear_chan_irq(struct mmp_tdma_chan *tdmac)
 	return -EAGAIN;
 }
 
+static size_t mmp_tdma_get_pos(struct mmp_tdma_chan *tdmac)
+{
+	size_t reg;
+
+	if (tdmac->idx == 0) {
+		reg = __raw_readl(tdmac->reg_base + TDSAR);
+		reg -= tdmac->desc_arr[0].src_addr;
+	} else if (tdmac->idx == 1) {
+		reg = __raw_readl(tdmac->reg_base + TDDAR);
+		reg -= tdmac->desc_arr[0].dst_addr;
+	} else
+		return -EINVAL;
+
+	return reg;
+}
+
 static irqreturn_t mmp_tdma_chan_handler(int irq, void *dev_id)
 {
 	struct mmp_tdma_chan *tdmac = dev_id;
 
 	if (mmp_tdma_clear_chan_irq(tdmac) == 0) {
-		tdmac->pos = (tdmac->pos + tdmac->period_len) % tdmac->buf_len;
 		tasklet_schedule(&tdmac->tasklet);
 		return IRQ_HANDLED;
 	} else
@@ -343,7 +361,7 @@ static void mmp_tdma_free_descriptor(struct mmp_tdma_chan *tdmac)
 	int size = tdmac->desc_num * sizeof(struct mmp_tdma_desc);
 
 	gpool = tdmac->pool;
-	if (tdmac->desc_arr)
+	if (gpool && tdmac->desc_arr)
 		gen_pool_free(gpool, (unsigned long)tdmac->desc_arr,
 				size);
 	tdmac->desc_arr = NULL;
@@ -499,6 +517,7 @@ static enum dma_status mmp_tdma_tx_status(struct dma_chan *chan,
 {
 	struct mmp_tdma_chan *tdmac = to_mmp_tdma_chan(chan);
 
+	tdmac->pos = mmp_tdma_get_pos(tdmac);
 	dma_set_tx_state(txstate, chan->completed_cookie, chan->cookie,
 			 tdmac->buf_len - tdmac->pos);
 
@@ -610,7 +629,7 @@ static int mmp_tdma_probe(struct platform_device *pdev)
 	int i, ret;
 	int irq = 0, irq_num = 0;
 	int chan_num = TDMA_CHANNEL_NUM;
-	struct gen_pool *pool;
+	struct gen_pool *pool = NULL;
 
 	of_id = of_match_device(mmp_tdma_dt_ids, &pdev->dev);
 	if (of_id)
diff --git a/drivers/dma/moxart-dma.c b/drivers/dma/moxart-dma.c
index 15cab7d..b463410 100644
--- a/drivers/dma/moxart-dma.c
+++ b/drivers/dma/moxart-dma.c
@@ -193,8 +193,10 @@ static int moxart_terminate_all(struct dma_chan *chan)
 
 	spin_lock_irqsave(&ch->vc.lock, flags);
 
-	if (ch->desc)
+	if (ch->desc) {
+		moxart_dma_desc_free(&ch->desc->vd);
 		ch->desc = NULL;
+	}
 
 	ctrl = readl(ch->base + REG_OFF_CTRL);
 	ctrl &= ~(APB_DMA_ENABLE | APB_DMA_FIN_INT_EN | APB_DMA_ERR_INT_EN);
diff --git a/drivers/dma/omap-dma.c b/drivers/dma/omap-dma.c
index 7dd6dd1..167dbaf 100644
--- a/drivers/dma/omap-dma.c
+++ b/drivers/dma/omap-dma.c
@@ -981,6 +981,7 @@ static int omap_dma_terminate_all(struct dma_chan *chan)
 	 * c->desc is NULL and exit.)
 	 */
 	if (c->desc) {
+		omap_dma_desc_free(&c->desc->vd);
 		c->desc = NULL;
 		/* Avoid stopping the dma twice */
 		if (!c->paused)
diff --git a/drivers/dma/qcom_bam_dma.c b/drivers/dma/qcom_bam_dma.c
index d7a33b3..9c914d6 100644
--- a/drivers/dma/qcom_bam_dma.c
+++ b/drivers/dma/qcom_bam_dma.c
@@ -162,9 +162,9 @@ static const struct reg_offset_data bam_v1_4_reg_info[] = {
 	[BAM_P_IRQ_STTS]	= { 0x1010, 0x1000, 0x00, 0x00 },
 	[BAM_P_IRQ_CLR]		= { 0x1014, 0x1000, 0x00, 0x00 },
 	[BAM_P_IRQ_EN]		= { 0x1018, 0x1000, 0x00, 0x00 },
-	[BAM_P_EVNT_DEST_ADDR]	= { 0x102C, 0x00, 0x1000, 0x00 },
-	[BAM_P_EVNT_REG]	= { 0x1018, 0x00, 0x1000, 0x00 },
-	[BAM_P_SW_OFSTS]	= { 0x1000, 0x00, 0x1000, 0x00 },
+	[BAM_P_EVNT_DEST_ADDR]	= { 0x182C, 0x00, 0x1000, 0x00 },
+	[BAM_P_EVNT_REG]	= { 0x1818, 0x00, 0x1000, 0x00 },
+	[BAM_P_SW_OFSTS]	= { 0x1800, 0x00, 0x1000, 0x00 },
 	[BAM_P_DATA_FIFO_ADDR]	= { 0x1824, 0x00, 0x1000, 0x00 },
 	[BAM_P_DESC_FIFO_ADDR]	= { 0x181C, 0x00, 0x1000, 0x00 },
 	[BAM_P_EVNT_GEN_TRSHLD]	= { 0x1828, 0x00, 0x1000, 0x00 },
@@ -1143,6 +1143,10 @@ static int bam_dma_probe(struct platform_device *pdev)
 	dma_cap_set(DMA_SLAVE, bdev->common.cap_mask);
 
 	/* initialize dmaengine apis */
+	bdev->common.directions = BIT(DMA_DEV_TO_MEM) | BIT(DMA_MEM_TO_DEV);
+	bdev->common.residue_granularity = DMA_RESIDUE_GRANULARITY_SEGMENT;
+	bdev->common.src_addr_widths = DMA_SLAVE_BUSWIDTH_4_BYTES;
+	bdev->common.dst_addr_widths = DMA_SLAVE_BUSWIDTH_4_BYTES;
 	bdev->common.device_alloc_chan_resources = bam_alloc_chan;
 	bdev->common.device_free_chan_resources = bam_free_chan;
 	bdev->common.device_prep_slave_sg = bam_prep_slave_sg;
diff --git a/drivers/dma/sh/shdmac.c b/drivers/dma/sh/shdmac.c
index b2431aa..9f1d4c7 100644
--- a/drivers/dma/sh/shdmac.c
+++ b/drivers/dma/sh/shdmac.c
@@ -582,15 +582,12 @@ static void sh_dmae_chan_remove(struct sh_dmae_device *shdev)
 	}
 }
 
-static void sh_dmae_shutdown(struct platform_device *pdev)
-{
-	struct sh_dmae_device *shdev = platform_get_drvdata(pdev);
-	sh_dmae_ctl_stop(shdev);
-}
-
 #ifdef CONFIG_PM
 static int sh_dmae_runtime_suspend(struct device *dev)
 {
+	struct sh_dmae_device *shdev = dev_get_drvdata(dev);
+
+	sh_dmae_ctl_stop(shdev);
 	return 0;
 }
 
@@ -605,6 +602,9 @@ static int sh_dmae_runtime_resume(struct device *dev)
 #ifdef CONFIG_PM_SLEEP
 static int sh_dmae_suspend(struct device *dev)
 {
+	struct sh_dmae_device *shdev = dev_get_drvdata(dev);
+
+	sh_dmae_ctl_stop(shdev);
 	return 0;
 }
 
@@ -929,13 +929,12 @@ static int sh_dmae_remove(struct platform_device *pdev)
 }
 
 static struct platform_driver sh_dmae_driver = {
-	.driver 	= {
+	.driver		= {
 		.pm	= &sh_dmae_pm,
 		.name	= SH_DMAE_DRV_NAME,
 		.of_match_table = sh_dmae_of_match,
 	},
 	.remove		= sh_dmae_remove,
-	.shutdown	= sh_dmae_shutdown,
 };
 
 static int __init sh_dmae_init(void)
diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c
index 68aca33..1332b1d 100644
--- a/drivers/dma/ste_dma40.c
+++ b/drivers/dma/ste_dma40.c
@@ -3548,7 +3548,7 @@ static int __init d40_probe(struct platform_device *pdev)
 
 	if (!plat_data) {
 		if (np) {
-			if(d40_of_probe(pdev, np)) {
+			if (d40_of_probe(pdev, np)) {
 				ret = -ENOMEM;
 				goto failure;
 			}
diff --git a/drivers/edac/amd64_edac.c b/drivers/edac/amd64_edac.c
index 5907c17..92772ff 100644
--- a/drivers/edac/amd64_edac.c
+++ b/drivers/edac/amd64_edac.c
@@ -20,8 +20,7 @@ static struct msr __percpu *msrs;
  */
 static atomic_t drv_instances = ATOMIC_INIT(0);
 
-/* Per-node driver instances */
-static struct mem_ctl_info **mcis;
+/* Per-node stuff */
 static struct ecc_settings **ecc_stngs;
 
 /*
@@ -903,9 +902,17 @@ static int k8_early_channel_count(struct amd64_pvt *pvt)
 /* On F10h and later ErrAddr is MC4_ADDR[47:1] */
 static u64 get_error_address(struct amd64_pvt *pvt, struct mce *m)
 {
-	u64 addr;
+	u16 mce_nid = amd_get_nb_id(m->extcpu);
+	struct mem_ctl_info *mci;
 	u8 start_bit = 1;
 	u8 end_bit   = 47;
+	u64 addr;
+
+	mci = edac_mc_find(mce_nid);
+	if (!mci)
+		return 0;
+
+	pvt = mci->pvt_info;
 
 	if (pvt->fam == 0xf) {
 		start_bit = 3;
@@ -918,17 +925,13 @@ static u64 get_error_address(struct amd64_pvt *pvt, struct mce *m)
 	 * Erratum 637 workaround
 	 */
 	if (pvt->fam == 0x15) {
-		struct amd64_pvt *pvt;
 		u64 cc6_base, tmp_addr;
 		u32 tmp;
-		u16 mce_nid;
 		u8 intlv_en;
 
 		if ((addr & GENMASK_ULL(47, 24)) >> 24 != 0x00fdf7)
 			return addr;
 
-		mce_nid	= amd_get_nb_id(m->extcpu);
-		pvt	= mcis[mce_nid]->pvt_info;
 
 		amd64_read_pci_cfg(pvt->F1, DRAM_LOCAL_NODE_LIM, &tmp);
 		intlv_en = tmp >> 21 & 0x7;
@@ -1511,7 +1514,7 @@ static int f1x_lookup_addr_in_dct(u64 in_addr, u8 nid, u8 dct)
 	int cs_found = -EINVAL;
 	int csrow;
 
-	mci = mcis[nid];
+	mci = edac_mc_find(nid);
 	if (!mci)
 		return cs_found;
 
@@ -2663,34 +2666,6 @@ static bool ecc_enabled(struct pci_dev *F3, u16 nid)
 	return true;
 }
 
-static int set_mc_sysfs_attrs(struct mem_ctl_info *mci)
-{
-	struct amd64_pvt *pvt = mci->pvt_info;
-	int rc;
-
-	rc = amd64_create_sysfs_dbg_files(mci);
-	if (rc < 0)
-		return rc;
-
-	if (pvt->fam >= 0x10) {
-		rc = amd64_create_sysfs_inject_files(mci);
-		if (rc < 0)
-			return rc;
-	}
-
-	return 0;
-}
-
-static void del_mc_sysfs_attrs(struct mem_ctl_info *mci)
-{
-	struct amd64_pvt *pvt = mci->pvt_info;
-
-	amd64_remove_sysfs_dbg_files(mci);
-
-	if (pvt->fam >= 0x10)
-		amd64_remove_sysfs_inject_files(mci);
-}
-
 static void setup_mci_misc_attrs(struct mem_ctl_info *mci,
 				 struct amd64_family_type *fam)
 {
@@ -2778,6 +2753,16 @@ static struct amd64_family_type *per_family_init(struct amd64_pvt *pvt)
 	return fam_type;
 }
 
+static const struct attribute_group *amd64_edac_attr_groups[] = {
+#ifdef CONFIG_EDAC_DEBUG
+	&amd64_edac_dbg_group,
+#endif
+#ifdef CONFIG_EDAC_AMD64_ERROR_INJECTION
+	&amd64_edac_inj_group,
+#endif
+	NULL
+};
+
 static int init_one_instance(struct pci_dev *F2)
 {
 	struct amd64_pvt *pvt = NULL;
@@ -2844,14 +2829,10 @@ static int init_one_instance(struct pci_dev *F2)
 		mci->edac_cap = EDAC_FLAG_NONE;
 
 	ret = -ENODEV;
-	if (edac_mc_add_mc(mci)) {
+	if (edac_mc_add_mc_with_groups(mci, amd64_edac_attr_groups)) {
 		edac_dbg(1, "failed edac_mc_add_mc()\n");
 		goto err_add_mc;
 	}
-	if (set_mc_sysfs_attrs(mci)) {
-		edac_dbg(1, "failed edac_mc_add_mc()\n");
-		goto err_add_sysfs;
-	}
 
 	/* register stuff with EDAC MCE */
 	if (report_gart_errors)
@@ -2859,14 +2840,10 @@ static int init_one_instance(struct pci_dev *F2)
 
 	amd_register_ecc_decoder(decode_bus_error);
 
-	mcis[nid] = mci;
-
 	atomic_inc(&drv_instances);
 
 	return 0;
 
-err_add_sysfs:
-	edac_mc_del_mc(mci->pdev);
 err_add_mc:
 	edac_mc_free(mci);
 
@@ -2940,7 +2917,6 @@ static void remove_one_instance(struct pci_dev *pdev)
 	mci = find_mci_by_dev(&pdev->dev);
 	WARN_ON(!mci);
 
-	del_mc_sysfs_attrs(mci);
 	/* Remove from EDAC CORE tracking list */
 	mci = edac_mc_del_mc(&pdev->dev);
 	if (!mci)
@@ -2961,7 +2937,6 @@ static void remove_one_instance(struct pci_dev *pdev)
 
 	/* Free the EDAC CORE resources */
 	mci->pvt_info = NULL;
-	mcis[nid] = NULL;
 
 	kfree(pvt);
 	edac_mc_free(mci);
@@ -2999,7 +2974,7 @@ static void setup_pci_device(void)
 	if (pci_ctl)
 		return;
 
-	mci = mcis[0];
+	mci = edac_mc_find(0);
 	if (!mci)
 		return;
 
@@ -3023,9 +2998,8 @@ static int __init amd64_edac_init(void)
 		goto err_ret;
 
 	err = -ENOMEM;
-	mcis	  = kzalloc(amd_nb_num() * sizeof(mcis[0]), GFP_KERNEL);
 	ecc_stngs = kzalloc(amd_nb_num() * sizeof(ecc_stngs[0]), GFP_KERNEL);
-	if (!(mcis && ecc_stngs))
+	if (!ecc_stngs)
 		goto err_free;
 
 	msrs = msrs_alloc();
@@ -3056,9 +3030,6 @@ err_pci:
 	msrs = NULL;
 
 err_free:
-	kfree(mcis);
-	mcis = NULL;
-
 	kfree(ecc_stngs);
 	ecc_stngs = NULL;
 
@@ -3076,9 +3047,6 @@ static void __exit amd64_edac_exit(void)
 	kfree(ecc_stngs);
 	ecc_stngs = NULL;
 
-	kfree(mcis);
-	mcis = NULL;
-
 	msrs_free(msrs);
 	msrs = NULL;
 }
diff --git a/drivers/edac/amd64_edac.h b/drivers/edac/amd64_edac.h
index d8468c6..4bdec75 100644
--- a/drivers/edac/amd64_edac.h
+++ b/drivers/edac/amd64_edac.h
@@ -453,31 +453,11 @@ struct ecc_settings {
 };
 
 #ifdef CONFIG_EDAC_DEBUG
-int amd64_create_sysfs_dbg_files(struct mem_ctl_info *mci);
-void amd64_remove_sysfs_dbg_files(struct mem_ctl_info *mci);
-
-#else
-static inline int amd64_create_sysfs_dbg_files(struct mem_ctl_info *mci)
-{
-	return 0;
-}
-static void inline amd64_remove_sysfs_dbg_files(struct mem_ctl_info *mci)
-{
-}
+extern const struct attribute_group amd64_edac_dbg_group;
 #endif
 
 #ifdef CONFIG_EDAC_AMD64_ERROR_INJECTION
-int amd64_create_sysfs_inject_files(struct mem_ctl_info *mci);
-void amd64_remove_sysfs_inject_files(struct mem_ctl_info *mci);
-
-#else
-static inline int amd64_create_sysfs_inject_files(struct mem_ctl_info *mci)
-{
-	return 0;
-}
-static inline void amd64_remove_sysfs_inject_files(struct mem_ctl_info *mci)
-{
-}
+extern const struct attribute_group amd64_edac_inj_group;
 #endif
 
 /*
diff --git a/drivers/edac/amd64_edac_dbg.c b/drivers/edac/amd64_edac_dbg.c
index 2c1bbf7..4709c60 100644
--- a/drivers/edac/amd64_edac_dbg.c
+++ b/drivers/edac/amd64_edac_dbg.c
@@ -40,34 +40,15 @@ static DEVICE_ATTR(topmem, S_IRUGO, amd64_top_mem_show, NULL);
 static DEVICE_ATTR(topmem2, S_IRUGO, amd64_top_mem2_show, NULL);
 static DEVICE_ATTR(dram_hole, S_IRUGO, amd64_hole_show, NULL);
 
-int amd64_create_sysfs_dbg_files(struct mem_ctl_info *mci)
-{
-	int rc;
-
-	rc = device_create_file(&mci->dev, &dev_attr_dhar);
-	if (rc < 0)
-		return rc;
-	rc = device_create_file(&mci->dev, &dev_attr_dbam);
-	if (rc < 0)
-		return rc;
-	rc = device_create_file(&mci->dev, &dev_attr_topmem);
-	if (rc < 0)
-		return rc;
-	rc = device_create_file(&mci->dev, &dev_attr_topmem2);
-	if (rc < 0)
-		return rc;
-	rc = device_create_file(&mci->dev, &dev_attr_dram_hole);
-	if (rc < 0)
-		return rc;
-
-	return 0;
-}
-
-void amd64_remove_sysfs_dbg_files(struct mem_ctl_info *mci)
-{
-	device_remove_file(&mci->dev, &dev_attr_dhar);
-	device_remove_file(&mci->dev, &dev_attr_dbam);
-	device_remove_file(&mci->dev, &dev_attr_topmem);
-	device_remove_file(&mci->dev, &dev_attr_topmem2);
-	device_remove_file(&mci->dev, &dev_attr_dram_hole);
-}
+static struct attribute *amd64_edac_dbg_attrs[] = {
+	&dev_attr_dhar.attr,
+	&dev_attr_dbam.attr,
+	&dev_attr_topmem.attr,
+	&dev_attr_topmem2.attr,
+	&dev_attr_dram_hole.attr,
+	NULL
+};
+
+const struct attribute_group amd64_edac_dbg_group = {
+	.attrs = amd64_edac_dbg_attrs,
+};
diff --git a/drivers/edac/amd64_edac_inj.c b/drivers/edac/amd64_edac_inj.c
index 0d66ae6..e14977f 100644
--- a/drivers/edac/amd64_edac_inj.c
+++ b/drivers/edac/amd64_edac_inj.c
@@ -207,35 +207,28 @@ static DEVICE_ATTR(inject_write, S_IWUSR,
 static DEVICE_ATTR(inject_read,  S_IWUSR,
 		   NULL, amd64_inject_read_store);
 
-
-int amd64_create_sysfs_inject_files(struct mem_ctl_info *mci)
+static struct attribute *amd64_edac_inj_attrs[] = {
+	&dev_attr_inject_section.attr,
+	&dev_attr_inject_word.attr,
+	&dev_attr_inject_ecc_vector.attr,
+	&dev_attr_inject_write.attr,
+	&dev_attr_inject_read.attr,
+	NULL
+};
+
+static umode_t amd64_edac_inj_is_visible(struct kobject *kobj,
+					 struct attribute *attr, int idx)
 {
-	int rc;
-
-	rc = device_create_file(&mci->dev, &dev_attr_inject_section);
-	if (rc < 0)
-		return rc;
-	rc = device_create_file(&mci->dev, &dev_attr_inject_word);
-	if (rc < 0)
-		return rc;
-	rc = device_create_file(&mci->dev, &dev_attr_inject_ecc_vector);
-	if (rc < 0)
-		return rc;
-	rc = device_create_file(&mci->dev, &dev_attr_inject_write);
-	if (rc < 0)
-		return rc;
-	rc = device_create_file(&mci->dev, &dev_attr_inject_read);
-	if (rc < 0)
-		return rc;
-
-	return 0;
-}
+	struct device *dev = kobj_to_dev(kobj);
+	struct mem_ctl_info *mci = container_of(dev, struct mem_ctl_info, dev);
+	struct amd64_pvt *pvt = mci->pvt_info;
 
-void amd64_remove_sysfs_inject_files(struct mem_ctl_info *mci)
-{
-	device_remove_file(&mci->dev, &dev_attr_inject_section);
-	device_remove_file(&mci->dev, &dev_attr_inject_word);
-	device_remove_file(&mci->dev, &dev_attr_inject_ecc_vector);
-	device_remove_file(&mci->dev, &dev_attr_inject_write);
-	device_remove_file(&mci->dev, &dev_attr_inject_read);
+	if (pvt->fam < 0x10)
+		return 0;
+	return attr->mode;
 }
+
+const struct attribute_group amd64_edac_inj_group = {
+	.attrs = amd64_edac_inj_attrs,
+	.is_visible = amd64_edac_inj_is_visible,
+};
diff --git a/drivers/edac/edac_core.h b/drivers/edac/edac_core.h
index 6c9f381..ad42587 100644
--- a/drivers/edac/edac_core.h
+++ b/drivers/edac/edac_core.h
@@ -446,7 +446,9 @@ struct mem_ctl_info *edac_mc_alloc(unsigned mc_num,
 				   unsigned n_layers,
 				   struct edac_mc_layer *layers,
 				   unsigned sz_pvt);
-extern int edac_mc_add_mc(struct mem_ctl_info *mci);
+extern int edac_mc_add_mc_with_groups(struct mem_ctl_info *mci,
+				      const struct attribute_group **groups);
+#define edac_mc_add_mc(mci)	edac_mc_add_mc_with_groups(mci, NULL)
 extern void edac_mc_free(struct mem_ctl_info *mci);
 extern struct mem_ctl_info *edac_mc_find(int idx);
 extern struct mem_ctl_info *find_mci_by_dev(struct device *dev);
diff --git a/drivers/edac/edac_mc.c b/drivers/edac/edac_mc.c
index 1747906..af3be19 100644
--- a/drivers/edac/edac_mc.c
+++ b/drivers/edac/edac_mc.c
@@ -710,9 +710,10 @@ struct mem_ctl_info *edac_mc_find(int idx)
 EXPORT_SYMBOL(edac_mc_find);
 
 /**
- * edac_mc_add_mc: Insert the 'mci' structure into the mci global list and
- *                 create sysfs entries associated with mci structure
+ * edac_mc_add_mc_with_groups: Insert the 'mci' structure into the mci
+ *	global list and create sysfs entries associated with mci structure
  * @mci: pointer to the mci structure to be added to the list
+ * @groups: optional attribute groups for the driver-specific sysfs entries
  *
  * Return:
  *	0	Success
@@ -720,7 +721,8 @@ EXPORT_SYMBOL(edac_mc_find);
  */
 
 /* FIXME - should a warning be printed if no error detection? correction? */
-int edac_mc_add_mc(struct mem_ctl_info *mci)
+int edac_mc_add_mc_with_groups(struct mem_ctl_info *mci,
+			       const struct attribute_group **groups)
 {
 	int ret = -EINVAL;
 	edac_dbg(0, "\n");
@@ -771,7 +773,7 @@ int edac_mc_add_mc(struct mem_ctl_info *mci)
 
 	mci->bus = &mc_bus[mci->mc_idx];
 
-	if (edac_create_sysfs_mci_device(mci)) {
+	if (edac_create_sysfs_mci_device(mci, groups)) {
 		edac_mc_printk(mci, KERN_WARNING,
 			"failed to create sysfs device\n");
 		goto fail1;
@@ -805,7 +807,7 @@ fail0:
 	mutex_unlock(&mem_ctls_mutex);
 	return ret;
 }
-EXPORT_SYMBOL_GPL(edac_mc_add_mc);
+EXPORT_SYMBOL_GPL(edac_mc_add_mc_with_groups);
 
 /**
  * edac_mc_del_mc: Remove sysfs entries for specified mci structure and
diff --git a/drivers/edac/edac_mc_sysfs.c b/drivers/edac/edac_mc_sysfs.c
index c84eecb..112d63a 100644
--- a/drivers/edac/edac_mc_sysfs.c
+++ b/drivers/edac/edac_mc_sysfs.c
@@ -323,13 +323,14 @@ DEVICE_CHANNEL(ch5_dimm_label, S_IRUGO | S_IWUSR,
 	channel_dimm_label_show, channel_dimm_label_store, 5);
 
 /* Total possible dynamic DIMM Label attribute file table */
-static struct device_attribute *dynamic_csrow_dimm_attr[] = {
-	&dev_attr_legacy_ch0_dimm_label.attr,
-	&dev_attr_legacy_ch1_dimm_label.attr,
-	&dev_attr_legacy_ch2_dimm_label.attr,
-	&dev_attr_legacy_ch3_dimm_label.attr,
-	&dev_attr_legacy_ch4_dimm_label.attr,
-	&dev_attr_legacy_ch5_dimm_label.attr
+static struct attribute *dynamic_csrow_dimm_attr[] = {
+	&dev_attr_legacy_ch0_dimm_label.attr.attr,
+	&dev_attr_legacy_ch1_dimm_label.attr.attr,
+	&dev_attr_legacy_ch2_dimm_label.attr.attr,
+	&dev_attr_legacy_ch3_dimm_label.attr.attr,
+	&dev_attr_legacy_ch4_dimm_label.attr.attr,
+	&dev_attr_legacy_ch5_dimm_label.attr.attr,
+	NULL
 };
 
 /* possible dynamic channel ce_count attribute files */
@@ -347,13 +348,45 @@ DEVICE_CHANNEL(ch5_ce_count, S_IRUGO,
 		   channel_ce_count_show, NULL, 5);
 
 /* Total possible dynamic ce_count attribute file table */
-static struct device_attribute *dynamic_csrow_ce_count_attr[] = {
-	&dev_attr_legacy_ch0_ce_count.attr,
-	&dev_attr_legacy_ch1_ce_count.attr,
-	&dev_attr_legacy_ch2_ce_count.attr,
-	&dev_attr_legacy_ch3_ce_count.attr,
-	&dev_attr_legacy_ch4_ce_count.attr,
-	&dev_attr_legacy_ch5_ce_count.attr
+static struct attribute *dynamic_csrow_ce_count_attr[] = {
+	&dev_attr_legacy_ch0_ce_count.attr.attr,
+	&dev_attr_legacy_ch1_ce_count.attr.attr,
+	&dev_attr_legacy_ch2_ce_count.attr.attr,
+	&dev_attr_legacy_ch3_ce_count.attr.attr,
+	&dev_attr_legacy_ch4_ce_count.attr.attr,
+	&dev_attr_legacy_ch5_ce_count.attr.attr,
+	NULL
+};
+
+static umode_t csrow_dev_is_visible(struct kobject *kobj,
+				    struct attribute *attr, int idx)
+{
+	struct device *dev = kobj_to_dev(kobj);
+	struct csrow_info *csrow = container_of(dev, struct csrow_info, dev);
+
+	if (idx >= csrow->nr_channels)
+		return 0;
+	/* Only expose populated DIMMs */
+	if (!csrow->channels[idx]->dimm->nr_pages)
+		return 0;
+	return attr->mode;
+}
+
+
+static const struct attribute_group csrow_dev_dimm_group = {
+	.attrs = dynamic_csrow_dimm_attr,
+	.is_visible = csrow_dev_is_visible,
+};
+
+static const struct attribute_group csrow_dev_ce_count_group = {
+	.attrs = dynamic_csrow_ce_count_attr,
+	.is_visible = csrow_dev_is_visible,
+};
+
+static const struct attribute_group *csrow_dev_groups[] = {
+	&csrow_dev_dimm_group,
+	&csrow_dev_ce_count_group,
+	NULL
 };
 
 static inline int nr_pages_per_csrow(struct csrow_info *csrow)
@@ -370,13 +403,12 @@ static inline int nr_pages_per_csrow(struct csrow_info *csrow)
 static int edac_create_csrow_object(struct mem_ctl_info *mci,
 				    struct csrow_info *csrow, int index)
 {
-	int err, chan;
-
 	if (csrow->nr_channels > EDAC_NR_CHANNELS)
 		return -ENODEV;
 
 	csrow->dev.type = &csrow_attr_type;
 	csrow->dev.bus = mci->bus;
+	csrow->dev.groups = csrow_dev_groups;
 	device_initialize(&csrow->dev);
 	csrow->dev.parent = &mci->dev;
 	csrow->mci = mci;
@@ -386,45 +418,13 @@ static int edac_create_csrow_object(struct mem_ctl_info *mci,
 	edac_dbg(0, "creating (virtual) csrow node %s\n",
 		 dev_name(&csrow->dev));
 
-	err = device_add(&csrow->dev);
-	if (err < 0)
-		return err;
-
-	for (chan = 0; chan < csrow->nr_channels; chan++) {
-		/* Only expose populated DIMMs */
-		if (!csrow->channels[chan]->dimm->nr_pages)
-			continue;
-		err = device_create_file(&csrow->dev,
-					 dynamic_csrow_dimm_attr[chan]);
-		if (err < 0)
-			goto error;
-		err = device_create_file(&csrow->dev,
-					 dynamic_csrow_ce_count_attr[chan]);
-		if (err < 0) {
-			device_remove_file(&csrow->dev,
-					   dynamic_csrow_dimm_attr[chan]);
-			goto error;
-		}
-	}
-
-	return 0;
-
-error:
-	for (--chan; chan >= 0; chan--) {
-		device_remove_file(&csrow->dev,
-					dynamic_csrow_dimm_attr[chan]);
-		device_remove_file(&csrow->dev,
-					   dynamic_csrow_ce_count_attr[chan]);
-	}
-	put_device(&csrow->dev);
-
-	return err;
+	return device_add(&csrow->dev);
 }
 
 /* Create a CSROW object under specifed edac_mc_device */
 static int edac_create_csrow_objects(struct mem_ctl_info *mci)
 {
-	int err, i, chan;
+	int err, i;
 	struct csrow_info *csrow;
 
 	for (i = 0; i < mci->nr_csrows; i++) {
@@ -446,14 +446,6 @@ error:
 		csrow = mci->csrows[i];
 		if (!nr_pages_per_csrow(csrow))
 			continue;
-		for (chan = csrow->nr_channels - 1; chan >= 0; chan--) {
-			if (!csrow->channels[chan]->dimm->nr_pages)
-				continue;
-			device_remove_file(&csrow->dev,
-						dynamic_csrow_dimm_attr[chan]);
-			device_remove_file(&csrow->dev,
-						dynamic_csrow_ce_count_attr[chan]);
-		}
 		put_device(&mci->csrows[i]->dev);
 	}
 
@@ -462,23 +454,13 @@ error:
 
 static void edac_delete_csrow_objects(struct mem_ctl_info *mci)
 {
-	int i, chan;
+	int i;
 	struct csrow_info *csrow;
 
 	for (i = mci->nr_csrows - 1; i >= 0; i--) {
 		csrow = mci->csrows[i];
 		if (!nr_pages_per_csrow(csrow))
 			continue;
-		for (chan = csrow->nr_channels - 1; chan >= 0; chan--) {
-			if (!csrow->channels[chan]->dimm->nr_pages)
-				continue;
-			edac_dbg(1, "Removing csrow %d channel %d sysfs nodes\n",
-				 i, chan);
-			device_remove_file(&csrow->dev,
-						dynamic_csrow_dimm_attr[chan]);
-			device_remove_file(&csrow->dev,
-						dynamic_csrow_ce_count_attr[chan]);
-		}
 		device_unregister(&mci->csrows[i]->dev);
 	}
 }
@@ -863,7 +845,8 @@ static DEVICE_ATTR(ce_count, S_IRUGO, mci_ce_count_show, NULL);
 static DEVICE_ATTR(max_location, S_IRUGO, mci_max_location_show, NULL);
 
 /* memory scrubber attribute file */
-static DEVICE_ATTR(sdram_scrub_rate, 0, NULL, NULL);
+DEVICE_ATTR(sdram_scrub_rate, 0, mci_sdram_scrub_rate_show,
+	    mci_sdram_scrub_rate_store); /* umode set later in is_visible */
 
 static struct attribute *mci_attrs[] = {
 	&dev_attr_reset_counters.attr,
@@ -875,11 +858,29 @@ static struct attribute *mci_attrs[] = {
 	&dev_attr_ue_count.attr,
 	&dev_attr_ce_count.attr,
 	&dev_attr_max_location.attr,
+	&dev_attr_sdram_scrub_rate.attr,
 	NULL
 };
 
+static umode_t mci_attr_is_visible(struct kobject *kobj,
+				   struct attribute *attr, int idx)
+{
+	struct device *dev = kobj_to_dev(kobj);
+	struct mem_ctl_info *mci = to_mci(dev);
+	umode_t mode = 0;
+
+	if (attr != &dev_attr_sdram_scrub_rate.attr)
+		return attr->mode;
+	if (mci->get_sdram_scrub_rate)
+		mode |= S_IRUGO;
+	if (mci->set_sdram_scrub_rate)
+		mode |= S_IWUSR;
+	return mode;
+}
+
 static struct attribute_group mci_attr_grp = {
 	.attrs	= mci_attrs,
+	.is_visible = mci_attr_is_visible,
 };
 
 static const struct attribute_group *mci_attr_groups[] = {
@@ -913,7 +914,7 @@ int __init edac_debugfs_init(void)
 	return 0;
 }
 
-void __exit edac_debugfs_exit(void)
+void edac_debugfs_exit(void)
 {
 	debugfs_remove(edac_debugfs);
 }
@@ -973,7 +974,8 @@ nomem:
  *	0	Success
  *	!0	Failure
  */
-int edac_create_sysfs_mci_device(struct mem_ctl_info *mci)
+int edac_create_sysfs_mci_device(struct mem_ctl_info *mci,
+				 const struct attribute_group **groups)
 {
 	int i, err;
 
@@ -997,6 +999,7 @@ int edac_create_sysfs_mci_device(struct mem_ctl_info *mci)
 
 	mci->dev.parent = mci_pdev;
 	mci->dev.bus = mci->bus;
+	mci->dev.groups = groups;
 	dev_set_name(&mci->dev, "mc%d", mci->mc_idx);
 	dev_set_drvdata(&mci->dev, mci);
 	pm_runtime_forbid(&mci->dev);
@@ -1008,23 +1011,6 @@ int edac_create_sysfs_mci_device(struct mem_ctl_info *mci)
 		goto fail_unregister_bus;
 	}
 
-	if (mci->set_sdram_scrub_rate || mci->get_sdram_scrub_rate) {
-		if (mci->get_sdram_scrub_rate) {
-			dev_attr_sdram_scrub_rate.attr.mode |= S_IRUGO;
-			dev_attr_sdram_scrub_rate.show = &mci_sdram_scrub_rate_show;
-		}
-
-		if (mci->set_sdram_scrub_rate) {
-			dev_attr_sdram_scrub_rate.attr.mode |= S_IWUSR;
-			dev_attr_sdram_scrub_rate.store = &mci_sdram_scrub_rate_store;
-		}
-
-		err = device_create_file(&mci->dev, &dev_attr_sdram_scrub_rate);
-		if (err) {
-			edac_dbg(1, "failure: create sdram_scrub_rate\n");
-			goto fail_unregister_dev;
-		}
-	}
 	/*
 	 * Create the dimm/rank devices
 	 */
@@ -1071,7 +1057,6 @@ fail_unregister_dimm:
 
 		device_unregister(&dimm->dev);
 	}
-fail_unregister_dev:
 	device_unregister(&mci->dev);
 fail_unregister_bus:
 	bus_unregister(mci->bus);
@@ -1170,7 +1155,7 @@ int __init edac_mc_sysfs_init(void)
 	return err;
 }
 
-void __exit edac_mc_sysfs_exit(void)
+void edac_mc_sysfs_exit(void)
 {
 	device_unregister(mci_pdev);
 	edac_put_sysfs_subsys();
diff --git a/drivers/edac/edac_module.c b/drivers/edac/edac_module.c
index e6d1691..9cb082a 100644
--- a/drivers/edac/edac_module.c
+++ b/drivers/edac/edac_module.c
@@ -112,20 +112,23 @@ static int __init edac_init(void)
 
 	err = edac_mc_sysfs_init();
 	if (err)
-		goto error;
+		goto err_sysfs;
 
 	edac_debugfs_init();
 
-	/* Setup/Initialize the workq for this core */
 	err = edac_workqueue_setup();
 	if (err) {
-		edac_printk(KERN_ERR, EDAC_MC, "init WorkQueue failure\n");
-		goto error;
+		edac_printk(KERN_ERR, EDAC_MC, "Failure initializing workqueue\n");
+		goto err_wq;
 	}
 
 	return 0;
 
-error:
+err_wq:
+	edac_debugfs_exit();
+	edac_mc_sysfs_exit();
+
+err_sysfs:
 	return err;
 }
 
diff --git a/drivers/edac/edac_module.h b/drivers/edac/edac_module.h
index f2118bf..26ecc52 100644
--- a/drivers/edac/edac_module.h
+++ b/drivers/edac/edac_module.h
@@ -22,7 +22,8 @@
 	/* on edac_mc_sysfs.c */
 int edac_mc_sysfs_init(void);
 void edac_mc_sysfs_exit(void);
-extern int edac_create_sysfs_mci_device(struct mem_ctl_info *mci);
+extern int edac_create_sysfs_mci_device(struct mem_ctl_info *mci,
+					const struct attribute_group **groups);
 extern void edac_remove_sysfs_mci_device(struct mem_ctl_info *mci);
 void edac_unregister_sysfs(struct mem_ctl_info *mci);
 extern int edac_get_log_ue(void);
diff --git a/drivers/edac/highbank_mc_edac.c b/drivers/edac/highbank_mc_edac.c
index f784de1..11260cc 100644
--- a/drivers/edac/highbank_mc_edac.c
+++ b/drivers/edac/highbank_mc_edac.c
@@ -124,6 +124,13 @@ static ssize_t highbank_mc_inject_ctrl(struct device *dev,
 
 static DEVICE_ATTR(inject_ctrl, S_IWUSR, NULL, highbank_mc_inject_ctrl);
 
+static struct attribute *highbank_dev_attrs[] = {
+	&dev_attr_inject_ctrl.attr,
+	NULL
+};
+
+ATTRIBUTE_GROUPS(highbank_dev);
+
 struct hb_mc_settings {
 	int	err_offset;
 	int	int_offset;
@@ -139,7 +146,7 @@ static struct hb_mc_settings mw_settings = {
 	.int_offset = MW_DDR_ECC_INT_BASE,
 };
 
-static struct of_device_id hb_ddr_ctrl_of_match[] = {
+static const struct of_device_id hb_ddr_ctrl_of_match[] = {
 	{ .compatible = "calxeda,hb-ddr-ctrl",		.data = &hb_settings },
 	{ .compatible = "calxeda,ecx-2000-ddr-ctrl",	.data = &mw_settings },
 	{},
@@ -231,7 +238,7 @@ static int highbank_mc_probe(struct platform_device *pdev)
 	dimm->mtype = MEM_DDR3;
 	dimm->edac_mode = EDAC_SECDED;
 
-	res = edac_mc_add_mc(mci);
+	res = edac_mc_add_mc_with_groups(mci, highbank_dev_groups);
 	if (res < 0)
 		goto err;
 
@@ -243,8 +250,6 @@ static int highbank_mc_probe(struct platform_device *pdev)
 		goto err2;
 	}
 
-	device_create_file(&mci->dev, &dev_attr_inject_ctrl);
-
 	devres_close_group(&pdev->dev, NULL);
 	return 0;
 err2:
@@ -259,7 +264,6 @@ static int highbank_mc_remove(struct platform_device *pdev)
 {
 	struct mem_ctl_info *mci = platform_get_drvdata(pdev);
 
-	device_remove_file(&mci->dev, &dev_attr_inject_ctrl);
 	edac_mc_del_mc(&pdev->dev);
 	edac_mc_free(mci);
 	return 0;
diff --git a/drivers/edac/i7core_edac.c b/drivers/edac/i7core_edac.c
index 9cd0b30..01087a3 100644
--- a/drivers/edac/i7core_edac.c
+++ b/drivers/edac/i7core_edac.c
@@ -1157,27 +1157,24 @@ static DEVICE_ATTR(inject_eccmask, S_IRUGO | S_IWUSR,
 static DEVICE_ATTR(inject_enable, S_IRUGO | S_IWUSR,
 		   i7core_inject_enable_show, i7core_inject_enable_store);
 
+static struct attribute *i7core_dev_attrs[] = {
+	&dev_attr_inject_section.attr,
+	&dev_attr_inject_type.attr,
+	&dev_attr_inject_eccmask.attr,
+	&dev_attr_inject_enable.attr,
+	NULL
+};
+
+ATTRIBUTE_GROUPS(i7core_dev);
+
 static int i7core_create_sysfs_devices(struct mem_ctl_info *mci)
 {
 	struct i7core_pvt *pvt = mci->pvt_info;
 	int rc;
 
-	rc = device_create_file(&mci->dev, &dev_attr_inject_section);
-	if (rc < 0)
-		return rc;
-	rc = device_create_file(&mci->dev, &dev_attr_inject_type);
-	if (rc < 0)
-		return rc;
-	rc = device_create_file(&mci->dev, &dev_attr_inject_eccmask);
-	if (rc < 0)
-		return rc;
-	rc = device_create_file(&mci->dev, &dev_attr_inject_enable);
-	if (rc < 0)
-		return rc;
-
 	pvt->addrmatch_dev = kzalloc(sizeof(*pvt->addrmatch_dev), GFP_KERNEL);
 	if (!pvt->addrmatch_dev)
-		return rc;
+		return -ENOMEM;
 
 	pvt->addrmatch_dev->type = &addrmatch_type;
 	pvt->addrmatch_dev->bus = mci->dev.bus;
@@ -1198,7 +1195,7 @@ static int i7core_create_sysfs_devices(struct mem_ctl_info *mci)
 		if (!pvt->chancounts_dev) {
 			put_device(pvt->addrmatch_dev);
 			device_del(pvt->addrmatch_dev);
-			return rc;
+			return -ENOMEM;
 		}
 
 		pvt->chancounts_dev->type = &all_channel_counts_type;
@@ -1223,11 +1220,6 @@ static void i7core_delete_sysfs_devices(struct mem_ctl_info *mci)
 
 	edac_dbg(1, "\n");
 
-	device_remove_file(&mci->dev, &dev_attr_inject_section);
-	device_remove_file(&mci->dev, &dev_attr_inject_type);
-	device_remove_file(&mci->dev, &dev_attr_inject_eccmask);
-	device_remove_file(&mci->dev, &dev_attr_inject_enable);
-
 	if (!pvt->is_registered) {
 		put_device(pvt->chancounts_dev);
 		device_del(pvt->chancounts_dev);
@@ -2259,7 +2251,7 @@ static int i7core_register_mci(struct i7core_dev *i7core_dev)
 		enable_sdram_scrub_setting(mci);
 
 	/* add this new MC control structure to EDAC's list of MCs */
-	if (unlikely(edac_mc_add_mc(mci))) {
+	if (unlikely(edac_mc_add_mc_with_groups(mci, i7core_dev_groups))) {
 		edac_dbg(0, "MC: failed edac_mc_add_mc()\n");
 		/* FIXME: perhaps some code should go here that disables error
 		 * reporting if we just enabled it
diff --git a/drivers/edac/i82443bxgx_edac.c b/drivers/edac/i82443bxgx_edac.c
index b4705d9..4d411036 100644
--- a/drivers/edac/i82443bxgx_edac.c
+++ b/drivers/edac/i82443bxgx_edac.c
@@ -350,8 +350,6 @@ fail:
 	return -ENODEV;
 }
 
-EXPORT_SYMBOL_GPL(i82443bxgx_edacmc_probe1);
-
 /* returns count (>= 0), or negative on error */
 static int i82443bxgx_edacmc_init_one(struct pci_dev *pdev,
 				      const struct pci_device_id *ent)
@@ -384,8 +382,6 @@ static void i82443bxgx_edacmc_remove_one(struct pci_dev *pdev)
 	edac_mc_free(mci);
 }
 
-EXPORT_SYMBOL_GPL(i82443bxgx_edacmc_remove_one);
-
 static const struct pci_device_id i82443bxgx_pci_tbl[] = {
 	{PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443BX_0)},
 	{PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443BX_2)},
@@ -445,9 +441,7 @@ fail1:
 	pci_unregister_driver(&i82443bxgx_edacmc_driver);
 
 fail0:
-	if (mci_pdev != NULL)
-		pci_dev_put(mci_pdev);
-
+	pci_dev_put(mci_pdev);
 	return pci_rc;
 }
 
diff --git a/drivers/edac/i82860_edac.c b/drivers/edac/i82860_edac.c
index 4382343..ee1078c 100644
--- a/drivers/edac/i82860_edac.c
+++ b/drivers/edac/i82860_edac.c
@@ -343,20 +343,15 @@ fail1:
 	pci_unregister_driver(&i82860_driver);
 
 fail0:
-	if (mci_pdev != NULL)
-		pci_dev_put(mci_pdev);
-
+	pci_dev_put(mci_pdev);
 	return pci_rc;
 }
 
 static void __exit i82860_exit(void)
 {
 	edac_dbg(3, "\n");
-
 	pci_unregister_driver(&i82860_driver);
-
-	if (mci_pdev != NULL)
-		pci_dev_put(mci_pdev);
+	pci_dev_put(mci_pdev);
 }
 
 module_init(i82860_init);
diff --git a/drivers/edac/i82875p_edac.c b/drivers/edac/i82875p_edac.c
index 64b6832..c26a513 100644
--- a/drivers/edac/i82875p_edac.c
+++ b/drivers/edac/i82875p_edac.c
@@ -576,9 +576,7 @@ fail1:
 	pci_unregister_driver(&i82875p_driver);
 
 fail0:
-	if (mci_pdev != NULL)
-		pci_dev_put(mci_pdev);
-
+	pci_dev_put(mci_pdev);
 	return pci_rc;
 }
 
diff --git a/drivers/edac/i82975x_edac.c b/drivers/edac/i82975x_edac.c
index 10b1052..35ab66c 100644
--- a/drivers/edac/i82975x_edac.c
+++ b/drivers/edac/i82975x_edac.c
@@ -685,9 +685,7 @@ fail1:
 	pci_unregister_driver(&i82975x_driver);
 
 fail0:
-	if (mci_pdev != NULL)
-		pci_dev_put(mci_pdev);
-
+	pci_dev_put(mci_pdev);
 	return pci_rc;
 }
 
diff --git a/drivers/edac/mpc85xx_edac.c b/drivers/edac/mpc85xx_edac.c
index 1fa76a5..68bf234 100644
--- a/drivers/edac/mpc85xx_edac.c
+++ b/drivers/edac/mpc85xx_edac.c
@@ -134,29 +134,14 @@ DEVICE_ATTR(inject_data_lo, S_IRUGO | S_IWUSR,
 DEVICE_ATTR(inject_ctrl, S_IRUGO | S_IWUSR,
 	    mpc85xx_mc_inject_ctrl_show, mpc85xx_mc_inject_ctrl_store);
 
-static int mpc85xx_create_sysfs_attributes(struct mem_ctl_info *mci)
-{
-	int rc;
-
-	rc = device_create_file(&mci->dev, &dev_attr_inject_data_hi);
-	if (rc < 0)
-		return rc;
-	rc = device_create_file(&mci->dev, &dev_attr_inject_data_lo);
-	if (rc < 0)
-		return rc;
-	rc = device_create_file(&mci->dev, &dev_attr_inject_ctrl);
-	if (rc < 0)
-		return rc;
+static struct attribute *mpc85xx_dev_attrs[] = {
+	&dev_attr_inject_data_hi.attr,
+	&dev_attr_inject_data_lo.attr,
+	&dev_attr_inject_ctrl.attr,
+	NULL
+};
 
-	return 0;
-}
-
-static void mpc85xx_remove_sysfs_attributes(struct mem_ctl_info *mci)
-{
-	device_remove_file(&mci->dev, &dev_attr_inject_data_hi);
-	device_remove_file(&mci->dev, &dev_attr_inject_data_lo);
-	device_remove_file(&mci->dev, &dev_attr_inject_ctrl);
-}
+ATTRIBUTE_GROUPS(mpc85xx_dev);
 
 /**************************** PCI Err device ***************************/
 #ifdef CONFIG_PCI
@@ -685,7 +670,7 @@ static int mpc85xx_l2_err_remove(struct platform_device *op)
 	return 0;
 }
 
-static struct of_device_id mpc85xx_l2_err_of_match[] = {
+static const struct of_device_id mpc85xx_l2_err_of_match[] = {
 /* deprecate the fsl,85.. forms in the future, 2.6.30? */
 	{ .compatible = "fsl,8540-l2-cache-controller", },
 	{ .compatible = "fsl,8541-l2-cache-controller", },
@@ -1106,13 +1091,7 @@ static int mpc85xx_mc_err_probe(struct platform_device *op)
 	/* clear all error bits */
 	out_be32(pdata->mc_vbase + MPC85XX_MC_ERR_DETECT, ~0);
 
-	if (edac_mc_add_mc(mci)) {
-		edac_dbg(3, "failed edac_mc_add_mc()\n");
-		goto err;
-	}
-
-	if (mpc85xx_create_sysfs_attributes(mci)) {
-		edac_mc_del_mc(mci->pdev);
+	if (edac_mc_add_mc_with_groups(mci, mpc85xx_dev_groups)) {
 		edac_dbg(3, "failed edac_mc_add_mc()\n");
 		goto err;
 	}
@@ -1176,13 +1155,12 @@ static int mpc85xx_mc_err_remove(struct platform_device *op)
 		 orig_ddr_err_disable);
 	out_be32(pdata->mc_vbase + MPC85XX_MC_ERR_SBE, orig_ddr_err_sbe);
 
-	mpc85xx_remove_sysfs_attributes(mci);
 	edac_mc_del_mc(&op->dev);
 	edac_mc_free(mci);
 	return 0;
 }
 
-static struct of_device_id mpc85xx_mc_err_of_match[] = {
+static const struct of_device_id mpc85xx_mc_err_of_match[] = {
 /* deprecate the fsl,85.. forms in the future, 2.6.30? */
 	{ .compatible = "fsl,8540-memory-controller", },
 	{ .compatible = "fsl,8541-memory-controller", },
diff --git a/drivers/edac/octeon_edac-lmc.c b/drivers/edac/octeon_edac-lmc.c
index 4bd10f9..bb19e07 100644
--- a/drivers/edac/octeon_edac-lmc.c
+++ b/drivers/edac/octeon_edac-lmc.c
@@ -209,35 +209,18 @@ static DEVICE_ATTR(row, S_IRUGO | S_IWUSR,
 static DEVICE_ATTR(col, S_IRUGO | S_IWUSR,
 		   octeon_mc_inject_col_show, octeon_mc_inject_col_store);
 
+static struct attribute *octeon_dev_attrs[] = {
+	&dev_attr_inject.attr,
+	&dev_attr_error_type.attr,
+	&dev_attr_dimm.attr,
+	&dev_attr_rank.attr,
+	&dev_attr_bank.attr,
+	&dev_attr_row.attr,
+	&dev_attr_col.attr,
+	NULL
+};
 
-static int octeon_set_mc_sysfs_attributes(struct mem_ctl_info *mci)
-{
-	int rc;
-
-	rc = device_create_file(&mci->dev, &dev_attr_inject);
-	if (rc < 0)
-		return rc;
-	rc = device_create_file(&mci->dev, &dev_attr_error_type);
-	if (rc < 0)
-		return rc;
-	rc = device_create_file(&mci->dev, &dev_attr_dimm);
-	if (rc < 0)
-		return rc;
-	rc = device_create_file(&mci->dev, &dev_attr_rank);
-	if (rc < 0)
-		return rc;
-	rc = device_create_file(&mci->dev, &dev_attr_bank);
-	if (rc < 0)
-		return rc;
-	rc = device_create_file(&mci->dev, &dev_attr_row);
-	if (rc < 0)
-		return rc;
-	rc = device_create_file(&mci->dev, &dev_attr_col);
-	if (rc < 0)
-		return rc;
-
-	return 0;
-}
+ATTRIBUTE_GROUPS(octeon_dev);
 
 static int octeon_lmc_edac_probe(struct platform_device *pdev)
 {
@@ -271,18 +254,12 @@ static int octeon_lmc_edac_probe(struct platform_device *pdev)
 		mci->ctl_name = "octeon-lmc-err";
 		mci->edac_check = octeon_lmc_edac_poll;
 
-		if (edac_mc_add_mc(mci)) {
+		if (edac_mc_add_mc_with_groups(mci, octeon_dev_groups)) {
 			dev_err(&pdev->dev, "edac_mc_add_mc() failed\n");
 			edac_mc_free(mci);
 			return -ENXIO;
 		}
 
-		if (octeon_set_mc_sysfs_attributes(mci)) {
-			dev_err(&pdev->dev, "octeon_set_mc_sysfs_attributes() failed\n");
-			return -ENXIO;
-		}
-
-
 		cfg0.u64 = cvmx_read_csr(CVMX_LMCX_MEM_CFG0(mc));
 		cfg0.s.intr_ded_ena = 0;	/* We poll */
 		cfg0.s.intr_sec_ena = 0;
@@ -309,18 +286,12 @@ static int octeon_lmc_edac_probe(struct platform_device *pdev)
 		mci->ctl_name = "co_lmc_err";
 		mci->edac_check = octeon_lmc_edac_poll_o2;
 
-		if (edac_mc_add_mc(mci)) {
+		if (edac_mc_add_mc_with_groups(mci, octeon_dev_groups)) {
 			dev_err(&pdev->dev, "edac_mc_add_mc() failed\n");
 			edac_mc_free(mci);
 			return -ENXIO;
 		}
 
-		if (octeon_set_mc_sysfs_attributes(mci)) {
-			dev_err(&pdev->dev, "octeon_set_mc_sysfs_attributes() failed\n");
-			return -ENXIO;
-		}
-
-
 		en.u64 = cvmx_read_csr(CVMX_LMCX_MEM_CFG0(mc));
 		en.s.intr_ded_ena = 0;	/* We poll */
 		en.s.intr_sec_ena = 0;
diff --git a/drivers/edac/ppc4xx_edac.c b/drivers/edac/ppc4xx_edac.c
index 1b64fd0..3515b381 100644
--- a/drivers/edac/ppc4xx_edac.c
+++ b/drivers/edac/ppc4xx_edac.c
@@ -193,7 +193,7 @@ static int ppc4xx_edac_remove(struct platform_device *device);
  * Device tree node type and compatible tuples this driver can match
  * on.
  */
-static struct of_device_id ppc4xx_edac_match[] = {
+static const struct of_device_id ppc4xx_edac_match[] = {
 	{
 		.compatible	= "ibm,sdram-4xx-ddr2"
 	},
diff --git a/drivers/edac/synopsys_edac.c b/drivers/edac/synopsys_edac.c
index 1c96915..fc153ae 100644
--- a/drivers/edac/synopsys_edac.c
+++ b/drivers/edac/synopsys_edac.c
@@ -512,7 +512,7 @@ static int synps_edac_mc_remove(struct platform_device *pdev)
 	return 0;
 }
 
-static struct of_device_id synps_edac_match[] = {
+static const struct of_device_id synps_edac_match[] = {
 	{ .compatible = "xlnx,zynq-ddrc-a05", },
 	{ /* end of table */ }
 };
diff --git a/drivers/firmware/dmi_scan.c b/drivers/firmware/dmi_scan.c
index c5f7b4e..6e45a43 100644
--- a/drivers/firmware/dmi_scan.c
+++ b/drivers/firmware/dmi_scan.c
@@ -17,7 +17,9 @@
  */
 static const char dmi_empty_string[] = "        ";
 
-static u16 __initdata dmi_ver;
+static u32 dmi_ver __initdata;
+static u32 dmi_len;
+static u16 dmi_num;
 /*
  * Catch too early calls to dmi_check_system():
  */
@@ -78,7 +80,7 @@ static const char * __init dmi_string(const struct dmi_header *dm, u8 s)
  *	We have to be cautious here. We have seen BIOSes with DMI pointers
  *	pointing to completely the wrong place for example
  */
-static void dmi_table(u8 *buf, int len, int num,
+static void dmi_table(u8 *buf,
 		      void (*decode)(const struct dmi_header *, void *),
 		      void *private_data)
 {
@@ -86,36 +88,38 @@ static void dmi_table(u8 *buf, int len, int num,
 	int i = 0;
 
 	/*
-	 *	Stop when we see all the items the table claimed to have
-	 *	OR we run off the end of the table (also happens)
+	 * Stop when we have seen all the items the table claimed to have
+	 * (SMBIOS < 3.0 only) OR we reach an end-of-table marker OR we run
+	 * off the end of the table (should never happen but sometimes does
+	 * on bogus implementations.)
 	 */
-	while ((i < num) && (data - buf + sizeof(struct dmi_header)) <= len) {
+	while ((!dmi_num || i < dmi_num) &&
+	       (data - buf + sizeof(struct dmi_header)) <= dmi_len) {
 		const struct dmi_header *dm = (const struct dmi_header *)data;
 
 		/*
-		 * 7.45 End-of-Table (Type 127) [SMBIOS reference spec v3.0.0]
-		 */
-		if (dm->type == DMI_ENTRY_END_OF_TABLE)
-			break;
-
-		/*
 		 *  We want to know the total length (formatted area and
 		 *  strings) before decoding to make sure we won't run off the
 		 *  table in dmi_decode or dmi_string
 		 */
 		data += dm->length;
-		while ((data - buf < len - 1) && (data[0] || data[1]))
+		while ((data - buf < dmi_len - 1) && (data[0] || data[1]))
 			data++;
-		if (data - buf < len - 1)
+		if (data - buf < dmi_len - 1)
 			decode(dm, private_data);
+
+		/*
+		 * 7.45 End-of-Table (Type 127) [SMBIOS reference spec v3.0.0]
+		 */
+		if (dm->type == DMI_ENTRY_END_OF_TABLE)
+			break;
+
 		data += 2;
 		i++;
 	}
 }
 
 static phys_addr_t dmi_base;
-static u16 dmi_len;
-static u16 dmi_num;
 
 static int __init dmi_walk_early(void (*decode)(const struct dmi_header *,
 		void *))
@@ -126,7 +130,7 @@ static int __init dmi_walk_early(void (*decode)(const struct dmi_header *,
 	if (buf == NULL)
 		return -1;
 
-	dmi_table(buf, dmi_len, dmi_num, decode, NULL);
+	dmi_table(buf, decode, NULL);
 
 	add_device_randomness(buf, dmi_len);
 
@@ -197,7 +201,7 @@ static void __init dmi_save_uuid(const struct dmi_header *dm, int slot,
 	 * the UUID are supposed to be little-endian encoded.  The specification
 	 * says that this is the defacto standard.
 	 */
-	if (dmi_ver >= 0x0206)
+	if (dmi_ver >= 0x020600)
 		sprintf(s, "%pUL", d);
 	else
 		sprintf(s, "%pUB", d);
@@ -469,7 +473,7 @@ static void __init dmi_format_ids(char *buf, size_t len)
  */
 static int __init dmi_present(const u8 *buf)
 {
-	int smbios_ver;
+	u32 smbios_ver;
 
 	if (memcmp(buf, "_SM_", 4) == 0 &&
 	    buf[5] < 32 && dmi_checksum(buf, buf[5])) {
@@ -502,14 +506,16 @@ static int __init dmi_present(const u8 *buf)
 		if (dmi_walk_early(dmi_decode) == 0) {
 			if (smbios_ver) {
 				dmi_ver = smbios_ver;
-				pr_info("SMBIOS %d.%d present.\n",
-				       dmi_ver >> 8, dmi_ver & 0xFF);
+				pr_info("SMBIOS %d.%d%s present.\n",
+					dmi_ver >> 8, dmi_ver & 0xFF,
+					(dmi_ver < 0x0300) ? "" : ".x");
 			} else {
 				dmi_ver = (buf[14] & 0xF0) << 4 |
 					   (buf[14] & 0x0F);
 				pr_info("Legacy DMI %d.%d present.\n",
 				       dmi_ver >> 8, dmi_ver & 0xFF);
 			}
+			dmi_ver <<= 8;
 			dmi_format_ids(dmi_ids_string, sizeof(dmi_ids_string));
 			printk(KERN_DEBUG "DMI: %s\n", dmi_ids_string);
 			return 0;
@@ -527,25 +533,16 @@ static int __init dmi_smbios3_present(const u8 *buf)
 {
 	if (memcmp(buf, "_SM3_", 5) == 0 &&
 	    buf[6] < 32 && dmi_checksum(buf, buf[6])) {
-		dmi_ver = get_unaligned_be16(buf + 7);
+		dmi_ver = get_unaligned_be32(buf + 6);
+		dmi_ver &= 0xFFFFFF;
+		dmi_num = 0;			/* No longer specified */
 		dmi_len = get_unaligned_le32(buf + 12);
 		dmi_base = get_unaligned_le64(buf + 16);
 
-		/*
-		 * The 64-bit SMBIOS 3.0 entry point no longer has a field
-		 * containing the number of structures present in the table.
-		 * Instead, it defines the table size as a maximum size, and
-		 * relies on the end-of-table structure type (#127) to be used
-		 * to signal the end of the table.
-		 * So let's define dmi_num as an upper bound as well: each
-		 * structure has a 4 byte header, so dmi_len / 4 is an upper
-		 * bound for the number of structures in the table.
-		 */
-		dmi_num = dmi_len / 4;
-
 		if (dmi_walk_early(dmi_decode) == 0) {
-			pr_info("SMBIOS %d.%d present.\n",
-				dmi_ver >> 8, dmi_ver & 0xFF);
+			pr_info("SMBIOS %d.%d.%d present.\n",
+				dmi_ver >> 16, (dmi_ver >> 8) & 0xFF,
+				dmi_ver & 0xFF);
 			dmi_format_ids(dmi_ids_string, sizeof(dmi_ids_string));
 			pr_debug("DMI: %s\n", dmi_ids_string);
 			return 0;
@@ -900,7 +897,7 @@ int dmi_walk(void (*decode)(const struct dmi_header *, void *),
 	if (buf == NULL)
 		return -1;
 
-	dmi_table(buf, dmi_len, dmi_num, decode, private_data);
+	dmi_table(buf, decode, private_data);
 
 	dmi_unmap(buf);
 	return 0;
diff --git a/drivers/firmware/efi/libstub/arm-stub.c b/drivers/firmware/efi/libstub/arm-stub.c
index dcae482..e29560e 100644
--- a/drivers/firmware/efi/libstub/arm-stub.c
+++ b/drivers/firmware/efi/libstub/arm-stub.c
@@ -175,7 +175,7 @@ unsigned long efi_entry(void *handle, efi_system_table_t *sys_table,
 	unsigned long initrd_addr;
 	u64 initrd_size = 0;
 	unsigned long fdt_addr = 0;  /* Original DTB */
-	u64 fdt_size = 0;  /* We don't get size from configuration table */
+	unsigned long fdt_size = 0;
 	char *cmdline_ptr = NULL;
 	int cmdline_size = 0;
 	unsigned long new_fdt_addr;
@@ -239,8 +239,7 @@ unsigned long efi_entry(void *handle, efi_system_table_t *sys_table,
 	} else {
 		status = handle_cmdline_files(sys_table, image, cmdline_ptr,
 					      "dtb=",
-					      ~0UL, (unsigned long *)&fdt_addr,
-					      (unsigned long *)&fdt_size);
+					      ~0UL, &fdt_addr, &fdt_size);
 
 		if (status != EFI_SUCCESS) {
 			pr_efi_err(sys_table, "Failed to load device tree!\n");
@@ -252,7 +251,7 @@ unsigned long efi_entry(void *handle, efi_system_table_t *sys_table,
 		pr_efi(sys_table, "Using DTB from command line\n");
 	} else {
 		/* Look for a device tree configuration table entry. */
-		fdt_addr = (uintptr_t)get_fdt(sys_table);
+		fdt_addr = (uintptr_t)get_fdt(sys_table, &fdt_size);
 		if (fdt_addr)
 			pr_efi(sys_table, "Using DTB from configuration table\n");
 	}
diff --git a/drivers/firmware/efi/libstub/efi-stub-helper.c b/drivers/firmware/efi/libstub/efi-stub-helper.c
index 2fe1950..f07d4a6 100644
--- a/drivers/firmware/efi/libstub/efi-stub-helper.c
+++ b/drivers/firmware/efi/libstub/efi-stub-helper.c
@@ -179,12 +179,12 @@ again:
 		start = desc->phys_addr;
 		end = start + desc->num_pages * (1UL << EFI_PAGE_SHIFT);
 
-		if ((start + size) > end || (start + size) > max)
-			continue;
-
-		if (end - size > max)
+		if (end > max)
 			end = max;
 
+		if ((start + size) > end)
+			continue;
+
 		if (round_down(end - size, align) < start)
 			continue;
 
diff --git a/drivers/firmware/efi/libstub/efistub.h b/drivers/firmware/efi/libstub/efistub.h
index 47437b1..e334a01 100644
--- a/drivers/firmware/efi/libstub/efistub.h
+++ b/drivers/firmware/efi/libstub/efistub.h
@@ -41,7 +41,7 @@ efi_status_t allocate_new_fdt_and_exit_boot(efi_system_table_t *sys_table,
 					    unsigned long fdt_addr,
 					    unsigned long fdt_size);
 
-void *get_fdt(efi_system_table_t *sys_table);
+void *get_fdt(efi_system_table_t *sys_table, unsigned long *fdt_size);
 
 void efi_get_virtmap(efi_memory_desc_t *memory_map, unsigned long map_size,
 		     unsigned long desc_size, efi_memory_desc_t *runtime_map,
diff --git a/drivers/firmware/efi/libstub/fdt.c b/drivers/firmware/efi/libstub/fdt.c
index 91da56c..ef5d764 100644
--- a/drivers/firmware/efi/libstub/fdt.c
+++ b/drivers/firmware/efi/libstub/fdt.c
@@ -323,7 +323,7 @@ fail:
 	return EFI_LOAD_ERROR;
 }
 
-void *get_fdt(efi_system_table_t *sys_table)
+void *get_fdt(efi_system_table_t *sys_table, unsigned long *fdt_size)
 {
 	efi_guid_t fdt_guid = DEVICE_TREE_GUID;
 	efi_config_table_t *tables;
@@ -336,6 +336,11 @@ void *get_fdt(efi_system_table_t *sys_table)
 	for (i = 0; i < sys_table->nr_tables; i++)
 		if (efi_guidcmp(tables[i].guid, fdt_guid) == 0) {
 			fdt = (void *) tables[i].table;
+			if (fdt_check_header(fdt) != 0) {
+				pr_efi_err(sys_table, "Invalid header detected on UEFI supplied FDT, ignoring ...\n");
+				return NULL;
+			}
+			*fdt_size = fdt_totalsize(fdt);
 			break;
 	 }
 
diff --git a/drivers/gpio/gpio-mpc8xxx.c b/drivers/gpio/gpio-mpc8xxx.c
index a6952ba3..a65b751 100644
--- a/drivers/gpio/gpio-mpc8xxx.c
+++ b/drivers/gpio/gpio-mpc8xxx.c
@@ -334,7 +334,7 @@ static struct irq_domain_ops mpc8xxx_gpio_irq_ops = {
 	.xlate	= irq_domain_xlate_twocell,
 };
 
-static struct of_device_id mpc8xxx_gpio_ids[] __initdata = {
+static struct of_device_id mpc8xxx_gpio_ids[] = {
 	{ .compatible = "fsl,mpc8349-gpio", },
 	{ .compatible = "fsl,mpc8572-gpio", },
 	{ .compatible = "fsl,mpc8610-gpio", },
diff --git a/drivers/gpio/gpio-syscon.c b/drivers/gpio/gpio-syscon.c
index 257e298..045a952 100644
--- a/drivers/gpio/gpio-syscon.c
+++ b/drivers/gpio/gpio-syscon.c
@@ -219,7 +219,7 @@ static int syscon_gpio_probe(struct platform_device *pdev)
 		ret = of_property_read_u32_index(np, "gpio,syscon-dev", 2,
 						 &priv->dir_reg_offset);
 		if (ret)
-			dev_err(dev, "can't read the dir register offset!\n");
+			dev_dbg(dev, "can't read the dir register offset!\n");
 
 		priv->dir_reg_offset <<= 3;
 	}
diff --git a/drivers/gpio/gpio-tps65912.c b/drivers/gpio/gpio-tps65912.c
index 472fb5b..9cdbc0c 100644
--- a/drivers/gpio/gpio-tps65912.c
+++ b/drivers/gpio/gpio-tps65912.c
@@ -26,9 +26,12 @@ struct tps65912_gpio_data {
 	struct gpio_chip gpio_chip;
 };
 
+#define to_tgd(gc) container_of(gc, struct tps65912_gpio_data, gpio_chip)
+
 static int tps65912_gpio_get(struct gpio_chip *gc, unsigned offset)
 {
-	struct tps65912 *tps65912 = container_of(gc, struct tps65912, gpio);
+	struct tps65912_gpio_data *tps65912_gpio = to_tgd(gc);
+	struct tps65912 *tps65912 = tps65912_gpio->tps65912;
 	int val;
 
 	val = tps65912_reg_read(tps65912, TPS65912_GPIO1 + offset);
@@ -42,7 +45,8 @@ static int tps65912_gpio_get(struct gpio_chip *gc, unsigned offset)
 static void tps65912_gpio_set(struct gpio_chip *gc, unsigned offset,
 			      int value)
 {
-	struct tps65912 *tps65912 = container_of(gc, struct tps65912, gpio);
+	struct tps65912_gpio_data *tps65912_gpio = to_tgd(gc);
+	struct tps65912 *tps65912 = tps65912_gpio->tps65912;
 
 	if (value)
 		tps65912_set_bits(tps65912, TPS65912_GPIO1 + offset,
@@ -55,7 +59,8 @@ static void tps65912_gpio_set(struct gpio_chip *gc, unsigned offset,
 static int tps65912_gpio_output(struct gpio_chip *gc, unsigned offset,
 				int value)
 {
-	struct tps65912 *tps65912 = container_of(gc, struct tps65912, gpio);
+	struct tps65912_gpio_data *tps65912_gpio = to_tgd(gc);
+	struct tps65912 *tps65912 = tps65912_gpio->tps65912;
 
 	/* Set the initial value */
 	tps65912_gpio_set(gc, offset, value);
@@ -66,7 +71,8 @@ static int tps65912_gpio_output(struct gpio_chip *gc, unsigned offset,
 
 static int tps65912_gpio_input(struct gpio_chip *gc, unsigned offset)
 {
-	struct tps65912 *tps65912 = container_of(gc, struct tps65912, gpio);
+	struct tps65912_gpio_data *tps65912_gpio = to_tgd(gc);
+	struct tps65912 *tps65912 = tps65912_gpio->tps65912;
 
 	return tps65912_clear_bits(tps65912, TPS65912_GPIO1 + offset,
 								GPIO_CFG_MASK);
diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c
index c0929d9..df990f2 100644
--- a/drivers/gpio/gpiolib-acpi.c
+++ b/drivers/gpio/gpiolib-acpi.c
@@ -201,6 +201,10 @@ static acpi_status acpi_gpiochip_request_interrupt(struct acpi_resource *ares,
 	if (!handler)
 		return AE_BAD_PARAMETER;
 
+	pin = acpi_gpiochip_pin_to_gpio_offset(chip, pin);
+	if (pin < 0)
+		return AE_BAD_PARAMETER;
+
 	desc = gpiochip_request_own_desc(chip, pin, "ACPI:Event");
 	if (IS_ERR(desc)) {
 		dev_err(chip->dev, "Failed to request GPIO\n");
@@ -551,6 +555,12 @@ acpi_gpio_adr_space_handler(u32 function, acpi_physical_address address,
 		struct gpio_desc *desc;
 		bool found;
 
+		pin = acpi_gpiochip_pin_to_gpio_offset(chip, pin);
+		if (pin < 0) {
+			status = AE_BAD_PARAMETER;
+			goto out;
+		}
+
 		mutex_lock(&achip->conn_lock);
 
 		found = false;
diff --git a/drivers/gpio/gpiolib-of.c b/drivers/gpio/gpiolib-of.c
index 8cad8e4..4650bf8 100644
--- a/drivers/gpio/gpiolib-of.c
+++ b/drivers/gpio/gpiolib-of.c
@@ -46,12 +46,13 @@ static int of_gpiochip_find_and_xlate(struct gpio_chip *gc, void *data)
 
 	ret = gc->of_xlate(gc, &gg_data->gpiospec, gg_data->flags);
 	if (ret < 0) {
-		/* We've found the gpio chip, but the translation failed.
-		 * Return true to stop looking and return the translation
-		 * error via out_gpio
+		/* We've found a gpio chip, but the translation failed.
+		 * Store translation error in out_gpio.
+		 * Return false to keep looking, as more than one gpio chip
+		 * could be registered per of-node.
 		 */
 		gg_data->out_gpio = ERR_PTR(ret);
-		return true;
+		return false;
 	 }
 
 	gg_data->out_gpio = gpiochip_get_desc(gc, ret);
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
index b3589d0..d8135ad 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
@@ -62,12 +62,18 @@ enum KFD_MQD_TYPE get_mqd_type_from_queue_type(enum kfd_queue_type type)
 	return KFD_MQD_TYPE_CP;
 }
 
-static inline unsigned int get_first_pipe(struct device_queue_manager *dqm)
+unsigned int get_first_pipe(struct device_queue_manager *dqm)
 {
-	BUG_ON(!dqm);
+	BUG_ON(!dqm || !dqm->dev);
 	return dqm->dev->shared_resources.first_compute_pipe;
 }
 
+unsigned int get_pipes_num(struct device_queue_manager *dqm)
+{
+	BUG_ON(!dqm || !dqm->dev);
+	return dqm->dev->shared_resources.compute_pipe_count;
+}
+
 static inline unsigned int get_pipes_num_cpsch(void)
 {
 	return PIPE_PER_ME_CP_SCHEDULING;
@@ -639,6 +645,7 @@ static int create_sdma_queue_nocpsch(struct device_queue_manager *dqm,
 	pr_debug("     sdma queue id: %d\n", q->properties.sdma_queue_id);
 	pr_debug("     sdma engine id: %d\n", q->properties.sdma_engine_id);
 
+	init_sdma_vm(dqm, q, qpd);
 	retval = mqd->init_mqd(mqd, &q->mqd, &q->mqd_mem_obj,
 				&q->gart_mqd_addr, &q->properties);
 	if (retval != 0) {
@@ -646,7 +653,14 @@ static int create_sdma_queue_nocpsch(struct device_queue_manager *dqm,
 		return retval;
 	}
 
-	init_sdma_vm(dqm, q, qpd);
+	retval = mqd->load_mqd(mqd, q->mqd, 0,
+				0, NULL);
+	if (retval != 0) {
+		deallocate_sdma_queue(dqm, q->sdma_id);
+		mqd->uninit_mqd(mqd, q->mqd, q->mqd_mem_obj);
+		return retval;
+	}
+
 	return 0;
 }
 
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.h b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.h
index d64f86c..488f51d 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.h
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.h
@@ -163,6 +163,8 @@ void program_sh_mem_settings(struct device_queue_manager *dqm,
 					struct qcm_process_device *qpd);
 int init_pipelines(struct device_queue_manager *dqm,
 		unsigned int pipes_num, unsigned int first_pipe);
+unsigned int get_first_pipe(struct device_queue_manager *dqm);
+unsigned int get_pipes_num(struct device_queue_manager *dqm);
 
 extern inline unsigned int get_sh_mem_bases_32(struct kfd_process_device *pdd)
 {
@@ -175,10 +177,4 @@ get_sh_mem_bases_nybble_64(struct kfd_process_device *pdd)
 	return (pdd->lds_base >> 60) & 0x0E;
 }
 
-extern inline unsigned int get_pipes_num(struct device_queue_manager *dqm)
-{
-	BUG_ON(!dqm || !dqm->dev);
-	return dqm->dev->shared_resources.compute_pipe_count;
-}
-
 #endif /* KFD_DEVICE_QUEUE_MANAGER_H_ */
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager_cik.c b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager_cik.c
index 6b07246..5469efe 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager_cik.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager_cik.c
@@ -131,5 +131,5 @@ static int register_process_cik(struct device_queue_manager *dqm,
 
 static int initialize_cpsch_cik(struct device_queue_manager *dqm)
 {
-	return init_pipelines(dqm, get_pipes_num(dqm), 0);
+	return init_pipelines(dqm, get_pipes_num(dqm), get_first_pipe(dqm));
 }
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.c b/drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.c
index e415a2a..c7d298e 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.c
@@ -44,7 +44,7 @@ static bool initialize(struct kernel_queue *kq, struct kfd_dev *dev,
 	BUG_ON(!kq || !dev);
 	BUG_ON(type != KFD_QUEUE_TYPE_DIQ && type != KFD_QUEUE_TYPE_HIQ);
 
-	pr_debug("kfd: In func %s initializing queue type %d size %d\n",
+	pr_debug("amdkfd: In func %s initializing queue type %d size %d\n",
 			__func__, KFD_QUEUE_TYPE_HIQ, queue_size);
 
 	nop.opcode = IT_NOP;
@@ -69,12 +69,16 @@ static bool initialize(struct kernel_queue *kq, struct kfd_dev *dev,
 
 	prop.doorbell_ptr = kfd_get_kernel_doorbell(dev, &prop.doorbell_off);
 
-	if (prop.doorbell_ptr == NULL)
+	if (prop.doorbell_ptr == NULL) {
+		pr_err("amdkfd: error init doorbell");
 		goto err_get_kernel_doorbell;
+	}
 
 	retval = kfd_gtt_sa_allocate(dev, queue_size, &kq->pq);
-	if (retval != 0)
+	if (retval != 0) {
+		pr_err("amdkfd: error init pq queues size (%d)\n", queue_size);
 		goto err_pq_allocate_vidmem;
+	}
 
 	kq->pq_kernel_addr = kq->pq->cpu_ptr;
 	kq->pq_gpu_addr = kq->pq->gpu_addr;
@@ -165,10 +169,8 @@ err_rptr_allocate_vidmem:
 err_eop_allocate_vidmem:
 	kfd_gtt_sa_free(dev, kq->pq);
 err_pq_allocate_vidmem:
-	pr_err("kfd: error init pq\n");
 	kfd_release_kernel_doorbell(dev, prop.doorbell_ptr);
 err_get_kernel_doorbell:
-	pr_err("kfd: error init doorbell");
 	return false;
 
 }
@@ -187,6 +189,8 @@ static void uninitialize(struct kernel_queue *kq)
 	else if (kq->queue->properties.type == KFD_QUEUE_TYPE_DIQ)
 		kfd_gtt_sa_free(kq->dev, kq->fence_mem_obj);
 
+	kq->mqd->uninit_mqd(kq->mqd, kq->queue->mqd, kq->queue->mqd_mem_obj);
+
 	kfd_gtt_sa_free(kq->dev, kq->rptr_mem);
 	kfd_gtt_sa_free(kq->dev, kq->wptr_mem);
 	kq->ops_asic_specific.uninitialize(kq);
@@ -211,7 +215,7 @@ static int acquire_packet_buffer(struct kernel_queue *kq,
 	queue_address = (unsigned int *)kq->pq_kernel_addr;
 	queue_size_dwords = kq->queue->properties.queue_size / sizeof(uint32_t);
 
-	pr_debug("kfd: In func %s\nrptr: %d\nwptr: %d\nqueue_address 0x%p\n",
+	pr_debug("amdkfd: In func %s\nrptr: %d\nwptr: %d\nqueue_address 0x%p\n",
 			__func__, rptr, wptr, queue_address);
 
 	available_size = (rptr - 1 - wptr + queue_size_dwords) %
@@ -296,7 +300,7 @@ struct kernel_queue *kernel_queue_init(struct kfd_dev *dev,
 	}
 
 	if (kq->ops.initialize(kq, dev, type, KFD_KERNEL_QUEUE_SIZE) == false) {
-		pr_err("kfd: failed to init kernel queue\n");
+		pr_err("amdkfd: failed to init kernel queue\n");
 		kfree(kq);
 		return NULL;
 	}
@@ -319,7 +323,7 @@ static __attribute__((unused)) void test_kq(struct kfd_dev *dev)
 
 	BUG_ON(!dev);
 
-	pr_err("kfd: starting kernel queue test\n");
+	pr_err("amdkfd: starting kernel queue test\n");
 
 	kq = kernel_queue_init(dev, KFD_QUEUE_TYPE_HIQ);
 	BUG_ON(!kq);
@@ -330,7 +334,7 @@ static __attribute__((unused)) void test_kq(struct kfd_dev *dev)
 		buffer[i] = kq->nop_packet;
 	kq->ops.submit_packet(kq);
 
-	pr_err("kfd: ending kernel queue test\n");
+	pr_err("amdkfd: ending kernel queue test\n");
 }
 
 
diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c
index 0409b90..b3e3068 100644
--- a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c
+++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c
@@ -153,7 +153,7 @@ static int atmel_hlcdc_crtc_mode_set(struct drm_crtc *c,
 		     (adj->crtc_hdisplay - 1) |
 		     ((adj->crtc_vdisplay - 1) << 16));
 
-	cfg = ATMEL_HLCDC_CLKPOL;
+	cfg = 0;
 
 	prate = clk_get_rate(crtc->dc->hlcdc->sys_clk);
 	mode_rate = mode->crtc_clock * 1000;
diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c
index 7320a6c..c1cb174 100644
--- a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c
+++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c
@@ -311,8 +311,6 @@ static int atmel_hlcdc_dc_load(struct drm_device *dev)
 
 	pm_runtime_enable(dev->dev);
 
-	pm_runtime_put_sync(dev->dev);
-
 	ret = atmel_hlcdc_dc_modeset_init(dev);
 	if (ret < 0) {
 		dev_err(dev->dev, "failed to initialize mode setting\n");
diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_layer.c b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_layer.c
index 063d2a7..e79bd9b 100644
--- a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_layer.c
+++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_layer.c
@@ -311,7 +311,8 @@ int atmel_hlcdc_layer_disable(struct atmel_hlcdc_layer *layer)
 
 	/* Disable the layer */
 	regmap_write(regmap, desc->regs_offset + ATMEL_HLCDC_LAYER_CHDR,
-		     ATMEL_HLCDC_LAYER_RST);
+		     ATMEL_HLCDC_LAYER_RST | ATMEL_HLCDC_LAYER_A2Q |
+		     ATMEL_HLCDC_LAYER_UPDATE);
 
 	/* Clear all pending interrupts */
 	regmap_read(regmap, desc->regs_offset + ATMEL_HLCDC_LAYER_ISR, &isr);
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index 6b00173..b6f076b2 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -43,9 +43,10 @@
 #include "drm_crtc_internal.h"
 #include "drm_internal.h"
 
-static struct drm_framebuffer *add_framebuffer_internal(struct drm_device *dev,
-							struct drm_mode_fb_cmd2 *r,
-							struct drm_file *file_priv);
+static struct drm_framebuffer *
+internal_framebuffer_create(struct drm_device *dev,
+			    struct drm_mode_fb_cmd2 *r,
+			    struct drm_file *file_priv);
 
 /* Avoid boilerplate.  I'm tired of typing. */
 #define DRM_ENUM_NAME_FN(fnname, list)				\
@@ -524,17 +525,6 @@ void drm_framebuffer_reference(struct drm_framebuffer *fb)
 }
 EXPORT_SYMBOL(drm_framebuffer_reference);
 
-static void drm_framebuffer_free_bug(struct kref *kref)
-{
-	BUG();
-}
-
-static void __drm_framebuffer_unreference(struct drm_framebuffer *fb)
-{
-	DRM_DEBUG("%p: FB ID: %d (%d)\n", fb, fb->base.id, atomic_read(&fb->refcount.refcount));
-	kref_put(&fb->refcount, drm_framebuffer_free_bug);
-}
-
 /**
  * drm_framebuffer_unregister_private - unregister a private fb from the lookup idr
  * @fb: fb to unregister
@@ -1319,7 +1309,7 @@ void drm_plane_force_disable(struct drm_plane *plane)
 		return;
 	}
 	/* disconnect the plane from the fb and crtc: */
-	__drm_framebuffer_unreference(plane->old_fb);
+	drm_framebuffer_unreference(plane->old_fb);
 	plane->old_fb = NULL;
 	plane->fb = NULL;
 	plane->crtc = NULL;
@@ -2127,12 +2117,11 @@ int drm_mode_getconnector(struct drm_device *dev, void *data,
 	DRM_DEBUG_KMS("[CONNECTOR:%d:?]\n", out_resp->connector_id);
 
 	mutex_lock(&dev->mode_config.mutex);
-	drm_modeset_lock(&dev->mode_config.connection_mutex, NULL);
 
 	connector = drm_connector_find(dev, out_resp->connector_id);
 	if (!connector) {
 		ret = -ENOENT;
-		goto out;
+		goto out_unlock;
 	}
 
 	for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++)
@@ -2157,6 +2146,8 @@ int drm_mode_getconnector(struct drm_device *dev, void *data,
 	out_resp->mm_height = connector->display_info.height_mm;
 	out_resp->subpixel = connector->display_info.subpixel_order;
 	out_resp->connection = connector->status;
+
+	drm_modeset_lock(&dev->mode_config.connection_mutex, NULL);
 	encoder = drm_connector_get_encoder(connector);
 	if (encoder)
 		out_resp->encoder_id = encoder->base.id;
@@ -2210,6 +2201,8 @@ int drm_mode_getconnector(struct drm_device *dev, void *data,
 
 out:
 	drm_modeset_unlock(&dev->mode_config.connection_mutex);
+
+out_unlock:
 	mutex_unlock(&dev->mode_config.mutex);
 
 	return ret;
@@ -2907,13 +2900,11 @@ static int drm_mode_cursor_universal(struct drm_crtc *crtc,
 	 */
 	if (req->flags & DRM_MODE_CURSOR_BO) {
 		if (req->handle) {
-			fb = add_framebuffer_internal(dev, &fbreq, file_priv);
+			fb = internal_framebuffer_create(dev, &fbreq, file_priv);
 			if (IS_ERR(fb)) {
 				DRM_DEBUG_KMS("failed to wrap cursor buffer in drm framebuffer\n");
 				return PTR_ERR(fb);
 			}
-
-			drm_framebuffer_reference(fb);
 		} else {
 			fb = NULL;
 		}
@@ -3266,9 +3257,10 @@ static int framebuffer_check(const struct drm_mode_fb_cmd2 *r)
 	return 0;
 }
 
-static struct drm_framebuffer *add_framebuffer_internal(struct drm_device *dev,
-							struct drm_mode_fb_cmd2 *r,
-							struct drm_file *file_priv)
+static struct drm_framebuffer *
+internal_framebuffer_create(struct drm_device *dev,
+			    struct drm_mode_fb_cmd2 *r,
+			    struct drm_file *file_priv)
 {
 	struct drm_mode_config *config = &dev->mode_config;
 	struct drm_framebuffer *fb;
@@ -3300,12 +3292,6 @@ static struct drm_framebuffer *add_framebuffer_internal(struct drm_device *dev,
 		return fb;
 	}
 
-	mutex_lock(&file_priv->fbs_lock);
-	r->fb_id = fb->base.id;
-	list_add(&fb->filp_head, &file_priv->fbs);
-	DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id);
-	mutex_unlock(&file_priv->fbs_lock);
-
 	return fb;
 }
 
@@ -3327,15 +3313,24 @@ static struct drm_framebuffer *add_framebuffer_internal(struct drm_device *dev,
 int drm_mode_addfb2(struct drm_device *dev,
 		    void *data, struct drm_file *file_priv)
 {
+	struct drm_mode_fb_cmd2 *r = data;
 	struct drm_framebuffer *fb;
 
 	if (!drm_core_check_feature(dev, DRIVER_MODESET))
 		return -EINVAL;
 
-	fb = add_framebuffer_internal(dev, data, file_priv);
+	fb = internal_framebuffer_create(dev, r, file_priv);
 	if (IS_ERR(fb))
 		return PTR_ERR(fb);
 
+	/* Transfer ownership to the filp for reaping on close */
+
+	DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id);
+	mutex_lock(&file_priv->fbs_lock);
+	r->fb_id = fb->base.id;
+	list_add(&fb->filp_head, &file_priv->fbs);
+	mutex_unlock(&file_priv->fbs_lock);
+
 	return 0;
 }
 
diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c
index 9a5b687..379ab45 100644
--- a/drivers/gpu/drm/drm_dp_mst_topology.c
+++ b/drivers/gpu/drm/drm_dp_mst_topology.c
@@ -733,10 +733,14 @@ static bool check_txmsg_state(struct drm_dp_mst_topology_mgr *mgr,
 			      struct drm_dp_sideband_msg_tx *txmsg)
 {
 	bool ret;
-	mutex_lock(&mgr->qlock);
+
+	/*
+	 * All updates to txmsg->state are protected by mgr->qlock, and the two
+	 * cases we check here are terminal states. For those the barriers
+	 * provided by the wake_up/wait_event pair are enough.
+	 */
 	ret = (txmsg->state == DRM_DP_SIDEBAND_TX_RX ||
 	       txmsg->state == DRM_DP_SIDEBAND_TX_TIMEOUT);
-	mutex_unlock(&mgr->qlock);
 	return ret;
 }
 
@@ -1363,12 +1367,13 @@ static int process_single_tx_qlock(struct drm_dp_mst_topology_mgr *mgr,
 	return 0;
 }
 
-/* must be called holding qlock */
 static void process_single_down_tx_qlock(struct drm_dp_mst_topology_mgr *mgr)
 {
 	struct drm_dp_sideband_msg_tx *txmsg;
 	int ret;
 
+	WARN_ON(!mutex_is_locked(&mgr->qlock));
+
 	/* construct a chunk from the first msg in the tx_msg queue */
 	if (list_empty(&mgr->tx_msg_downq)) {
 		mgr->tx_down_in_progress = false;
diff --git a/drivers/gpu/drm/drm_edid_load.c b/drivers/gpu/drm/drm_edid_load.c
index 732cb6f..4c0aa97 100644
--- a/drivers/gpu/drm/drm_edid_load.c
+++ b/drivers/gpu/drm/drm_edid_load.c
@@ -287,6 +287,7 @@ int drm_load_edid_firmware(struct drm_connector *connector)
 
 	drm_mode_connector_update_edid_property(connector, edid);
 	ret = drm_add_edid_modes(connector, edid);
+	drm_edid_to_eld(connector, edid);
 	kfree(edid);
 
 	return ret;
diff --git a/drivers/gpu/drm/drm_mm.c b/drivers/gpu/drm/drm_mm.c
index 04a209e..1134526 100644
--- a/drivers/gpu/drm/drm_mm.c
+++ b/drivers/gpu/drm/drm_mm.c
@@ -91,29 +91,29 @@
  */
 
 static struct drm_mm_node *drm_mm_search_free_generic(const struct drm_mm *mm,
-						unsigned long size,
+						u64 size,
 						unsigned alignment,
 						unsigned long color,
 						enum drm_mm_search_flags flags);
 static struct drm_mm_node *drm_mm_search_free_in_range_generic(const struct drm_mm *mm,
-						unsigned long size,
+						u64 size,
 						unsigned alignment,
 						unsigned long color,
-						unsigned long start,
-						unsigned long end,
+						u64 start,
+						u64 end,
 						enum drm_mm_search_flags flags);
 
 static void drm_mm_insert_helper(struct drm_mm_node *hole_node,
 				 struct drm_mm_node *node,
-				 unsigned long size, unsigned alignment,
+				 u64 size, unsigned alignment,
 				 unsigned long color,
 				 enum drm_mm_allocator_flags flags)
 {
 	struct drm_mm *mm = hole_node->mm;
-	unsigned long hole_start = drm_mm_hole_node_start(hole_node);
-	unsigned long hole_end = drm_mm_hole_node_end(hole_node);
-	unsigned long adj_start = hole_start;
-	unsigned long adj_end = hole_end;
+	u64 hole_start = drm_mm_hole_node_start(hole_node);
+	u64 hole_end = drm_mm_hole_node_end(hole_node);
+	u64 adj_start = hole_start;
+	u64 adj_end = hole_end;
 
 	BUG_ON(node->allocated);
 
@@ -124,12 +124,15 @@ static void drm_mm_insert_helper(struct drm_mm_node *hole_node,
 		adj_start = adj_end - size;
 
 	if (alignment) {
-		unsigned tmp = adj_start % alignment;
-		if (tmp) {
+		u64 tmp = adj_start;
+		unsigned rem;
+
+		rem = do_div(tmp, alignment);
+		if (rem) {
 			if (flags & DRM_MM_CREATE_TOP)
-				adj_start -= tmp;
+				adj_start -= rem;
 			else
-				adj_start += alignment - tmp;
+				adj_start += alignment - rem;
 		}
 	}
 
@@ -176,9 +179,9 @@ static void drm_mm_insert_helper(struct drm_mm_node *hole_node,
 int drm_mm_reserve_node(struct drm_mm *mm, struct drm_mm_node *node)
 {
 	struct drm_mm_node *hole;
-	unsigned long end = node->start + node->size;
-	unsigned long hole_start;
-	unsigned long hole_end;
+	u64 end = node->start + node->size;
+	u64 hole_start;
+	u64 hole_end;
 
 	BUG_ON(node == NULL);
 
@@ -227,7 +230,7 @@ EXPORT_SYMBOL(drm_mm_reserve_node);
  * 0 on success, -ENOSPC if there's no suitable hole.
  */
 int drm_mm_insert_node_generic(struct drm_mm *mm, struct drm_mm_node *node,
-			       unsigned long size, unsigned alignment,
+			       u64 size, unsigned alignment,
 			       unsigned long color,
 			       enum drm_mm_search_flags sflags,
 			       enum drm_mm_allocator_flags aflags)
@@ -246,16 +249,16 @@ EXPORT_SYMBOL(drm_mm_insert_node_generic);
 
 static void drm_mm_insert_helper_range(struct drm_mm_node *hole_node,
 				       struct drm_mm_node *node,
-				       unsigned long size, unsigned alignment,
+				       u64 size, unsigned alignment,
 				       unsigned long color,
-				       unsigned long start, unsigned long end,
+				       u64 start, u64 end,
 				       enum drm_mm_allocator_flags flags)
 {
 	struct drm_mm *mm = hole_node->mm;
-	unsigned long hole_start = drm_mm_hole_node_start(hole_node);
-	unsigned long hole_end = drm_mm_hole_node_end(hole_node);
-	unsigned long adj_start = hole_start;
-	unsigned long adj_end = hole_end;
+	u64 hole_start = drm_mm_hole_node_start(hole_node);
+	u64 hole_end = drm_mm_hole_node_end(hole_node);
+	u64 adj_start = hole_start;
+	u64 adj_end = hole_end;
 
 	BUG_ON(!hole_node->hole_follows || node->allocated);
 
@@ -271,12 +274,15 @@ static void drm_mm_insert_helper_range(struct drm_mm_node *hole_node,
 		mm->color_adjust(hole_node, color, &adj_start, &adj_end);
 
 	if (alignment) {
-		unsigned tmp = adj_start % alignment;
-		if (tmp) {
+		u64 tmp = adj_start;
+		unsigned rem;
+
+		rem = do_div(tmp, alignment);
+		if (rem) {
 			if (flags & DRM_MM_CREATE_TOP)
-				adj_start -= tmp;
+				adj_start -= rem;
 			else
-				adj_start += alignment - tmp;
+				adj_start += alignment - rem;
 		}
 	}
 
@@ -324,9 +330,9 @@ static void drm_mm_insert_helper_range(struct drm_mm_node *hole_node,
  * 0 on success, -ENOSPC if there's no suitable hole.
  */
 int drm_mm_insert_node_in_range_generic(struct drm_mm *mm, struct drm_mm_node *node,
-					unsigned long size, unsigned alignment,
+					u64 size, unsigned alignment,
 					unsigned long color,
-					unsigned long start, unsigned long end,
+					u64 start, u64 end,
 					enum drm_mm_search_flags sflags,
 					enum drm_mm_allocator_flags aflags)
 {
@@ -387,32 +393,34 @@ void drm_mm_remove_node(struct drm_mm_node *node)
 }
 EXPORT_SYMBOL(drm_mm_remove_node);
 
-static int check_free_hole(unsigned long start, unsigned long end,
-			   unsigned long size, unsigned alignment)
+static int check_free_hole(u64 start, u64 end, u64 size, unsigned alignment)
 {
 	if (end - start < size)
 		return 0;
 
 	if (alignment) {
-		unsigned tmp = start % alignment;
-		if (tmp)
-			start += alignment - tmp;
+		u64 tmp = start;
+		unsigned rem;
+
+		rem = do_div(tmp, alignment);
+		if (rem)
+			start += alignment - rem;
 	}
 
 	return end >= start + size;
 }
 
 static struct drm_mm_node *drm_mm_search_free_generic(const struct drm_mm *mm,
-						      unsigned long size,
+						      u64 size,
 						      unsigned alignment,
 						      unsigned long color,
 						      enum drm_mm_search_flags flags)
 {
 	struct drm_mm_node *entry;
 	struct drm_mm_node *best;
-	unsigned long adj_start;
-	unsigned long adj_end;
-	unsigned long best_size;
+	u64 adj_start;
+	u64 adj_end;
+	u64 best_size;
 
 	BUG_ON(mm->scanned_blocks);
 
@@ -421,7 +429,7 @@ static struct drm_mm_node *drm_mm_search_free_generic(const struct drm_mm *mm,
 
 	__drm_mm_for_each_hole(entry, mm, adj_start, adj_end,
 			       flags & DRM_MM_SEARCH_BELOW) {
-		unsigned long hole_size = adj_end - adj_start;
+		u64 hole_size = adj_end - adj_start;
 
 		if (mm->color_adjust) {
 			mm->color_adjust(entry, color, &adj_start, &adj_end);
@@ -445,18 +453,18 @@ static struct drm_mm_node *drm_mm_search_free_generic(const struct drm_mm *mm,
 }
 
 static struct drm_mm_node *drm_mm_search_free_in_range_generic(const struct drm_mm *mm,
-							unsigned long size,
+							u64 size,
 							unsigned alignment,
 							unsigned long color,
-							unsigned long start,
-							unsigned long end,
+							u64 start,
+							u64 end,
 							enum drm_mm_search_flags flags)
 {
 	struct drm_mm_node *entry;
 	struct drm_mm_node *best;
-	unsigned long adj_start;
-	unsigned long adj_end;
-	unsigned long best_size;
+	u64 adj_start;
+	u64 adj_end;
+	u64 best_size;
 
 	BUG_ON(mm->scanned_blocks);
 
@@ -465,7 +473,7 @@ static struct drm_mm_node *drm_mm_search_free_in_range_generic(const struct drm_
 
 	__drm_mm_for_each_hole(entry, mm, adj_start, adj_end,
 			       flags & DRM_MM_SEARCH_BELOW) {
-		unsigned long hole_size = adj_end - adj_start;
+		u64 hole_size = adj_end - adj_start;
 
 		if (adj_start < start)
 			adj_start = start;
@@ -561,7 +569,7 @@ EXPORT_SYMBOL(drm_mm_replace_node);
  * adding/removing nodes to/from the scan list are allowed.
  */
 void drm_mm_init_scan(struct drm_mm *mm,
-		      unsigned long size,
+		      u64 size,
 		      unsigned alignment,
 		      unsigned long color)
 {
@@ -594,11 +602,11 @@ EXPORT_SYMBOL(drm_mm_init_scan);
  * adding/removing nodes to/from the scan list are allowed.
  */
 void drm_mm_init_scan_with_range(struct drm_mm *mm,
-				 unsigned long size,
+				 u64 size,
 				 unsigned alignment,
 				 unsigned long color,
-				 unsigned long start,
-				 unsigned long end)
+				 u64 start,
+				 u64 end)
 {
 	mm->scan_color = color;
 	mm->scan_alignment = alignment;
@@ -627,8 +635,8 @@ bool drm_mm_scan_add_block(struct drm_mm_node *node)
 {
 	struct drm_mm *mm = node->mm;
 	struct drm_mm_node *prev_node;
-	unsigned long hole_start, hole_end;
-	unsigned long adj_start, adj_end;
+	u64 hole_start, hole_end;
+	u64 adj_start, adj_end;
 
 	mm->scanned_blocks++;
 
@@ -731,7 +739,7 @@ EXPORT_SYMBOL(drm_mm_clean);
  *
  * Note that @mm must be cleared to 0 before calling this function.
  */
-void drm_mm_init(struct drm_mm * mm, unsigned long start, unsigned long size)
+void drm_mm_init(struct drm_mm * mm, u64 start, u64 size)
 {
 	INIT_LIST_HEAD(&mm->hole_stack);
 	mm->scanned_blocks = 0;
@@ -766,18 +774,17 @@ void drm_mm_takedown(struct drm_mm * mm)
 }
 EXPORT_SYMBOL(drm_mm_takedown);
 
-static unsigned long drm_mm_debug_hole(struct drm_mm_node *entry,
-				       const char *prefix)
+static u64 drm_mm_debug_hole(struct drm_mm_node *entry,
+				     const char *prefix)
 {
-	unsigned long hole_start, hole_end, hole_size;
+	u64 hole_start, hole_end, hole_size;
 
 	if (entry->hole_follows) {
 		hole_start = drm_mm_hole_node_start(entry);
 		hole_end = drm_mm_hole_node_end(entry);
 		hole_size = hole_end - hole_start;
-		printk(KERN_DEBUG "%s 0x%08lx-0x%08lx: %8lu: free\n",
-			prefix, hole_start, hole_end,
-			hole_size);
+		pr_debug("%s %#llx-%#llx: %llu: free\n", prefix, hole_start,
+			 hole_end, hole_size);
 		return hole_size;
 	}
 
@@ -792,35 +799,34 @@ static unsigned long drm_mm_debug_hole(struct drm_mm_node *entry,
 void drm_mm_debug_table(struct drm_mm *mm, const char *prefix)
 {
 	struct drm_mm_node *entry;
-	unsigned long total_used = 0, total_free = 0, total = 0;
+	u64 total_used = 0, total_free = 0, total = 0;
 
 	total_free += drm_mm_debug_hole(&mm->head_node, prefix);
 
 	drm_mm_for_each_node(entry, mm) {
-		printk(KERN_DEBUG "%s 0x%08lx-0x%08lx: %8lu: used\n",
-			prefix, entry->start, entry->start + entry->size,
-			entry->size);
+		pr_debug("%s %#llx-%#llx: %llu: used\n", prefix, entry->start,
+			 entry->start + entry->size, entry->size);
 		total_used += entry->size;
 		total_free += drm_mm_debug_hole(entry, prefix);
 	}
 	total = total_free + total_used;
 
-	printk(KERN_DEBUG "%s total: %lu, used %lu free %lu\n", prefix, total,
-		total_used, total_free);
+	pr_debug("%s total: %llu, used %llu free %llu\n", prefix, total,
+		 total_used, total_free);
 }
 EXPORT_SYMBOL(drm_mm_debug_table);
 
 #if defined(CONFIG_DEBUG_FS)
-static unsigned long drm_mm_dump_hole(struct seq_file *m, struct drm_mm_node *entry)
+static u64 drm_mm_dump_hole(struct seq_file *m, struct drm_mm_node *entry)
 {
-	unsigned long hole_start, hole_end, hole_size;
+	u64 hole_start, hole_end, hole_size;
 
 	if (entry->hole_follows) {
 		hole_start = drm_mm_hole_node_start(entry);
 		hole_end = drm_mm_hole_node_end(entry);
 		hole_size = hole_end - hole_start;
-		seq_printf(m, "0x%08lx-0x%08lx: 0x%08lx: free\n",
-				hole_start, hole_end, hole_size);
+		seq_printf(m, "%#llx-%#llx: %llu: free\n", hole_start,
+			   hole_end, hole_size);
 		return hole_size;
 	}
 
@@ -835,20 +841,20 @@ static unsigned long drm_mm_dump_hole(struct seq_file *m, struct drm_mm_node *en
 int drm_mm_dump_table(struct seq_file *m, struct drm_mm *mm)
 {
 	struct drm_mm_node *entry;
-	unsigned long total_used = 0, total_free = 0, total = 0;
+	u64 total_used = 0, total_free = 0, total = 0;
 
 	total_free += drm_mm_dump_hole(m, &mm->head_node);
 
 	drm_mm_for_each_node(entry, mm) {
-		seq_printf(m, "0x%08lx-0x%08lx: 0x%08lx: used\n",
-				entry->start, entry->start + entry->size,
-				entry->size);
+		seq_printf(m, "%#016llx-%#016llx: %llu: used\n", entry->start,
+			   entry->start + entry->size, entry->size);
 		total_used += entry->size;
 		total_free += drm_mm_dump_hole(m, entry);
 	}
 	total = total_free + total_used;
 
-	seq_printf(m, "total: %lu, used %lu free %lu\n", total, total_used, total_free);
+	seq_printf(m, "total: %llu, used %llu free %llu\n", total,
+		   total_used, total_free);
 	return 0;
 }
 EXPORT_SYMBOL(drm_mm_dump_table);
diff --git a/drivers/gpu/drm/drm_probe_helper.c b/drivers/gpu/drm/drm_probe_helper.c
index 6591d48..3fee587 100644
--- a/drivers/gpu/drm/drm_probe_helper.c
+++ b/drivers/gpu/drm/drm_probe_helper.c
@@ -174,6 +174,7 @@ static int drm_helper_probe_single_connector_modes_merge_bits(struct drm_connect
 			struct edid *edid = (struct edid *) connector->edid_blob_ptr->data;
 
 			count = drm_add_edid_modes(connector, edid);
+			drm_edid_to_eld(connector, edid);
 		} else
 			count = (*connector_funcs->get_modes)(connector);
 	}
diff --git a/drivers/gpu/drm/exynos/Kconfig b/drivers/gpu/drm/exynos/Kconfig
index a5e7461..0a67803 100644
--- a/drivers/gpu/drm/exynos/Kconfig
+++ b/drivers/gpu/drm/exynos/Kconfig
@@ -50,7 +50,7 @@ config DRM_EXYNOS_DSI
 
 config DRM_EXYNOS_DP
 	bool "EXYNOS DRM DP driver support"
-	depends on (DRM_EXYNOS_FIMD || DRM_EXYNOS7DECON) && ARCH_EXYNOS && (DRM_PTN3460=n || DRM_PTN3460=y || DRM_PTN3460=DRM_EXYNOS)
+	depends on (DRM_EXYNOS_FIMD || DRM_EXYNOS7_DECON) && ARCH_EXYNOS && (DRM_PTN3460=n || DRM_PTN3460=y || DRM_PTN3460=DRM_EXYNOS)
 	default DRM_EXYNOS
 	select DRM_PANEL
 	help
diff --git a/drivers/gpu/drm/exynos/exynos7_drm_decon.c b/drivers/gpu/drm/exynos/exynos7_drm_decon.c
index 63f02e2..9700461 100644
--- a/drivers/gpu/drm/exynos/exynos7_drm_decon.c
+++ b/drivers/gpu/drm/exynos/exynos7_drm_decon.c
@@ -888,8 +888,8 @@ static int decon_probe(struct platform_device *pdev)
 	of_node_put(i80_if_timings);
 
 	ctx->regs = of_iomap(dev->of_node, 0);
-	if (IS_ERR(ctx->regs)) {
-		ret = PTR_ERR(ctx->regs);
+	if (!ctx->regs) {
+		ret = -ENOMEM;
 		goto err_del_component;
 	}
 
diff --git a/drivers/gpu/drm/exynos/exynos_drm_connector.c b/drivers/gpu/drm/exynos/exynos_drm_connector.c
deleted file mode 100644
index ba9b3d5..0000000
--- a/drivers/gpu/drm/exynos/exynos_drm_connector.c
+++ /dev/null
@@ -1,245 +0,0 @@
-/*
- * Copyright (c) 2011 Samsung Electronics Co., Ltd.
- * Authors:
- *	Inki Dae <inki.dae@samsung.com>
- *	Joonyoung Shim <jy0922.shim@samsung.com>
- *	Seung-Woo Kim <sw0312.kim@samsung.com>
- *
- * This program is free software; you can redistribute  it and/or modify it
- * under  the terms of  the GNU General  Public License as published by the
- * Free Software Foundation;  either version 2 of the  License, or (at your
- * option) any later version.
- */
-
-#include <drm/drmP.h>
-#include <drm/drm_crtc_helper.h>
-
-#include <drm/exynos_drm.h>
-#include "exynos_drm_drv.h"
-#include "exynos_drm_encoder.h"
-#include "exynos_drm_connector.h"
-
-#define to_exynos_connector(x)	container_of(x, struct exynos_drm_connector,\
-				drm_connector)
-
-struct exynos_drm_connector {
-	struct drm_connector		drm_connector;
-	uint32_t			encoder_id;
-	struct exynos_drm_display	*display;
-};
-
-static int exynos_drm_connector_get_modes(struct drm_connector *connector)
-{
-	struct exynos_drm_connector *exynos_connector =
-					to_exynos_connector(connector);
-	struct exynos_drm_display *display = exynos_connector->display;
-	struct edid *edid = NULL;
-	unsigned int count = 0;
-	int ret;
-
-	/*
-	 * if get_edid() exists then get_edid() callback of hdmi side
-	 * is called to get edid data through i2c interface else
-	 * get timing from the FIMD driver(display controller).
-	 *
-	 * P.S. in case of lcd panel, count is always 1 if success
-	 * because lcd panel has only one mode.
-	 */
-	if (display->ops->get_edid) {
-		edid = display->ops->get_edid(display, connector);
-		if (IS_ERR_OR_NULL(edid)) {
-			ret = PTR_ERR(edid);
-			edid = NULL;
-			DRM_ERROR("Panel operation get_edid failed %d\n", ret);
-			goto out;
-		}
-
-		count = drm_add_edid_modes(connector, edid);
-		if (!count) {
-			DRM_ERROR("Add edid modes failed %d\n", count);
-			goto out;
-		}
-
-		drm_mode_connector_update_edid_property(connector, edid);
-	} else {
-		struct exynos_drm_panel_info *panel;
-		struct drm_display_mode *mode = drm_mode_create(connector->dev);
-		if (!mode) {
-			DRM_ERROR("failed to create a new display mode.\n");
-			return 0;
-		}
-
-		if (display->ops->get_panel)
-			panel = display->ops->get_panel(display);
-		else {
-			drm_mode_destroy(connector->dev, mode);
-			return 0;
-		}
-
-		drm_display_mode_from_videomode(&panel->vm, mode);
-		mode->width_mm = panel->width_mm;
-		mode->height_mm = panel->height_mm;
-		connector->display_info.width_mm = mode->width_mm;
-		connector->display_info.height_mm = mode->height_mm;
-
-		mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
-		drm_mode_set_name(mode);
-		drm_mode_probed_add(connector, mode);
-
-		count = 1;
-	}
-
-out:
-	kfree(edid);
-	return count;
-}
-
-static int exynos_drm_connector_mode_valid(struct drm_connector *connector,
-					    struct drm_display_mode *mode)
-{
-	struct exynos_drm_connector *exynos_connector =
-					to_exynos_connector(connector);
-	struct exynos_drm_display *display = exynos_connector->display;
-	int ret = MODE_BAD;
-
-	DRM_DEBUG_KMS("%s\n", __FILE__);
-
-	if (display->ops->check_mode)
-		if (!display->ops->check_mode(display, mode))
-			ret = MODE_OK;
-
-	return ret;
-}
-
-static struct drm_encoder *exynos_drm_best_encoder(
-		struct drm_connector *connector)
-{
-	struct drm_device *dev = connector->dev;
-	struct exynos_drm_connector *exynos_connector =
-					to_exynos_connector(connector);
-	return drm_encoder_find(dev, exynos_connector->encoder_id);
-}
-
-static struct drm_connector_helper_funcs exynos_connector_helper_funcs = {
-	.get_modes	= exynos_drm_connector_get_modes,
-	.mode_valid	= exynos_drm_connector_mode_valid,
-	.best_encoder	= exynos_drm_best_encoder,
-};
-
-static int exynos_drm_connector_fill_modes(struct drm_connector *connector,
-				unsigned int max_width, unsigned int max_height)
-{
-	struct exynos_drm_connector *exynos_connector =
-					to_exynos_connector(connector);
-	struct exynos_drm_display *display = exynos_connector->display;
-	unsigned int width, height;
-
-	width = max_width;
-	height = max_height;
-
-	/*
-	 * if specific driver want to find desired_mode using maxmum
-	 * resolution then get max width and height from that driver.
-	 */
-	if (display->ops->get_max_resol)
-		display->ops->get_max_resol(display, &width, &height);
-
-	return drm_helper_probe_single_connector_modes(connector, width,
-							height);
-}
-
-/* get detection status of display device. */
-static enum drm_connector_status
-exynos_drm_connector_detect(struct drm_connector *connector, bool force)
-{
-	struct exynos_drm_connector *exynos_connector =
-					to_exynos_connector(connector);
-	struct exynos_drm_display *display = exynos_connector->display;
-	enum drm_connector_status status = connector_status_disconnected;
-
-	if (display->ops->is_connected) {
-		if (display->ops->is_connected(display))
-			status = connector_status_connected;
-		else
-			status = connector_status_disconnected;
-	}
-
-	return status;
-}
-
-static void exynos_drm_connector_destroy(struct drm_connector *connector)
-{
-	struct exynos_drm_connector *exynos_connector =
-		to_exynos_connector(connector);
-
-	drm_connector_unregister(connector);
-	drm_connector_cleanup(connector);
-	kfree(exynos_connector);
-}
-
-static struct drm_connector_funcs exynos_connector_funcs = {
-	.dpms		= drm_helper_connector_dpms,
-	.fill_modes	= exynos_drm_connector_fill_modes,
-	.detect		= exynos_drm_connector_detect,
-	.destroy	= exynos_drm_connector_destroy,
-};
-
-struct drm_connector *exynos_drm_connector_create(struct drm_device *dev,
-						   struct drm_encoder *encoder)
-{
-	struct exynos_drm_connector *exynos_connector;
-	struct exynos_drm_display *display = exynos_drm_get_display(encoder);
-	struct drm_connector *connector;
-	int type;
-	int err;
-
-	exynos_connector = kzalloc(sizeof(*exynos_connector), GFP_KERNEL);
-	if (!exynos_connector)
-		return NULL;
-
-	connector = &exynos_connector->drm_connector;
-
-	switch (display->type) {
-	case EXYNOS_DISPLAY_TYPE_HDMI:
-		type = DRM_MODE_CONNECTOR_HDMIA;
-		connector->interlace_allowed = true;
-		connector->polled = DRM_CONNECTOR_POLL_HPD;
-		break;
-	case EXYNOS_DISPLAY_TYPE_VIDI:
-		type = DRM_MODE_CONNECTOR_VIRTUAL;
-		connector->polled = DRM_CONNECTOR_POLL_HPD;
-		break;
-	default:
-		type = DRM_MODE_CONNECTOR_Unknown;
-		break;
-	}
-
-	drm_connector_init(dev, connector, &exynos_connector_funcs, type);
-	drm_connector_helper_add(connector, &exynos_connector_helper_funcs);
-
-	err = drm_connector_register(connector);
-	if (err)
-		goto err_connector;
-
-	exynos_connector->encoder_id = encoder->base.id;
-	exynos_connector->display = display;
-	connector->dpms = DRM_MODE_DPMS_OFF;
-	connector->encoder = encoder;
-
-	err = drm_mode_connector_attach_encoder(connector, encoder);
-	if (err) {
-		DRM_ERROR("failed to attach a connector to a encoder\n");
-		goto err_sysfs;
-	}
-
-	DRM_DEBUG_KMS("connector has been created\n");
-
-	return connector;
-
-err_sysfs:
-	drm_connector_unregister(connector);
-err_connector:
-	drm_connector_cleanup(connector);
-	kfree(exynos_connector);
-	return NULL;
-}
diff --git a/drivers/gpu/drm/exynos/exynos_drm_connector.h b/drivers/gpu/drm/exynos/exynos_drm_connector.h
deleted file mode 100644
index 4eb20d7..0000000
--- a/drivers/gpu/drm/exynos/exynos_drm_connector.h
+++ /dev/null
@@ -1,20 +0,0 @@
-/*
- * Copyright (c) 2011 Samsung Electronics Co., Ltd.
- * Authors:
- *	Inki Dae <inki.dae@samsung.com>
- *	Joonyoung Shim <jy0922.shim@samsung.com>
- *	Seung-Woo Kim <sw0312.kim@samsung.com>
- *
- * This program is free software; you can redistribute  it and/or modify it
- * under  the terms of  the GNU General  Public License as published by the
- * Free Software Foundation;  either version 2 of the  License, or (at your
- * option) any later version.
- */
-
-#ifndef _EXYNOS_DRM_CONNECTOR_H_
-#define _EXYNOS_DRM_CONNECTOR_H_
-
-struct drm_connector *exynos_drm_connector_create(struct drm_device *dev,
-						   struct drm_encoder *encoder);
-
-#endif
diff --git a/drivers/gpu/drm/exynos/exynos_drm_fimd.c b/drivers/gpu/drm/exynos/exynos_drm_fimd.c
index 925fc69..33a10ce 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_fimd.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_fimd.c
@@ -147,6 +147,7 @@ struct fimd_win_data {
 	unsigned int		ovl_height;
 	unsigned int		fb_width;
 	unsigned int		fb_height;
+	unsigned int		fb_pitch;
 	unsigned int		bpp;
 	unsigned int		pixel_format;
 	dma_addr_t		dma_addr;
@@ -284,14 +285,9 @@ static void fimd_clear_channel(struct fimd_context *ctx)
 	}
 }
 
-static int fimd_ctx_initialize(struct fimd_context *ctx,
+static int fimd_iommu_attach_devices(struct fimd_context *ctx,
 			struct drm_device *drm_dev)
 {
-	struct exynos_drm_private *priv;
-	priv = drm_dev->dev_private;
-
-	ctx->drm_dev = drm_dev;
-	ctx->pipe = priv->pipe++;
 
 	/* attach this sub driver to iommu mapping if supported. */
 	if (is_drm_iommu_supported(ctx->drm_dev)) {
@@ -313,7 +309,7 @@ static int fimd_ctx_initialize(struct fimd_context *ctx,
 	return 0;
 }
 
-static void fimd_ctx_remove(struct fimd_context *ctx)
+static void fimd_iommu_detach_devices(struct fimd_context *ctx)
 {
 	/* detach this sub driver from iommu mapping if supported. */
 	if (is_drm_iommu_supported(ctx->drm_dev))
@@ -537,13 +533,14 @@ static void fimd_win_mode_set(struct exynos_drm_crtc *crtc,
 	win_data->offset_y = plane->crtc_y;
 	win_data->ovl_width = plane->crtc_width;
 	win_data->ovl_height = plane->crtc_height;
+	win_data->fb_pitch = plane->pitch;
 	win_data->fb_width = plane->fb_width;
 	win_data->fb_height = plane->fb_height;
 	win_data->dma_addr = plane->dma_addr[0] + offset;
 	win_data->bpp = plane->bpp;
 	win_data->pixel_format = plane->pixel_format;
-	win_data->buf_offsize = (plane->fb_width - plane->crtc_width) *
-				(plane->bpp >> 3);
+	win_data->buf_offsize =
+		plane->pitch - (plane->crtc_width * (plane->bpp >> 3));
 	win_data->line_size = plane->crtc_width * (plane->bpp >> 3);
 
 	DRM_DEBUG_KMS("offset_x = %d, offset_y = %d\n",
@@ -709,7 +706,7 @@ static void fimd_win_commit(struct exynos_drm_crtc *crtc, int zpos)
 	writel(val, ctx->regs + VIDWx_BUF_START(win, 0));
 
 	/* buffer end address */
-	size = win_data->fb_width * win_data->ovl_height * (win_data->bpp >> 3);
+	size = win_data->fb_pitch * win_data->ovl_height * (win_data->bpp >> 3);
 	val = (unsigned long)(win_data->dma_addr + size);
 	writel(val, ctx->regs + VIDWx_BUF_END(win, 0));
 
@@ -1056,25 +1053,23 @@ static int fimd_bind(struct device *dev, struct device *master, void *data)
 {
 	struct fimd_context *ctx = dev_get_drvdata(dev);
 	struct drm_device *drm_dev = data;
+	struct exynos_drm_private *priv = drm_dev->dev_private;
 	int ret;
 
-	ret = fimd_ctx_initialize(ctx, drm_dev);
-	if (ret) {
-		DRM_ERROR("fimd_ctx_initialize failed.\n");
-		return ret;
-	}
+	ctx->drm_dev = drm_dev;
+	ctx->pipe = priv->pipe++;
 
 	ctx->crtc = exynos_drm_crtc_create(drm_dev, ctx->pipe,
 					   EXYNOS_DISPLAY_TYPE_LCD,
 					   &fimd_crtc_ops, ctx);
-	if (IS_ERR(ctx->crtc)) {
-		fimd_ctx_remove(ctx);
-		return PTR_ERR(ctx->crtc);
-	}
 
 	if (ctx->display)
 		exynos_drm_create_enc_conn(drm_dev, ctx->display);
 
+	ret = fimd_iommu_attach_devices(ctx, drm_dev);
+	if (ret)
+		return ret;
+
 	return 0;
 
 }
@@ -1086,10 +1081,10 @@ static void fimd_unbind(struct device *dev, struct device *master,
 
 	fimd_dpms(ctx->crtc, DRM_MODE_DPMS_OFF);
 
+	fimd_iommu_detach_devices(ctx);
+
 	if (ctx->display)
 		exynos_dpi_remove(ctx->display);
-
-	fimd_ctx_remove(ctx);
 }
 
 static const struct component_ops fimd_component_ops = {
diff --git a/drivers/gpu/drm/exynos/exynos_drm_plane.c b/drivers/gpu/drm/exynos/exynos_drm_plane.c
index a561687..8ad5b72 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_plane.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_plane.c
@@ -175,7 +175,7 @@ static int exynos_disable_plane(struct drm_plane *plane)
 	struct exynos_drm_plane *exynos_plane = to_exynos_plane(plane);
 	struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(plane->crtc);
 
-	if (exynos_crtc->ops->win_disable)
+	if (exynos_crtc && exynos_crtc->ops->win_disable)
 		exynos_crtc->ops->win_disable(exynos_crtc,
 					      exynos_plane->zpos);
 
diff --git a/drivers/gpu/drm/exynos/exynos_mixer.c b/drivers/gpu/drm/exynos/exynos_mixer.c
index 3518bc4..2e3bc57 100644
--- a/drivers/gpu/drm/exynos/exynos_mixer.c
+++ b/drivers/gpu/drm/exynos/exynos_mixer.c
@@ -55,6 +55,7 @@ struct hdmi_win_data {
 	unsigned int		fb_x;
 	unsigned int		fb_y;
 	unsigned int		fb_width;
+	unsigned int		fb_pitch;
 	unsigned int		fb_height;
 	unsigned int		src_width;
 	unsigned int		src_height;
@@ -438,7 +439,7 @@ static void vp_video_buffer(struct mixer_context *ctx, int win)
 	} else {
 		luma_addr[0] = win_data->dma_addr;
 		chroma_addr[0] = win_data->dma_addr
-			+ (win_data->fb_width * win_data->fb_height);
+			+ (win_data->fb_pitch * win_data->fb_height);
 	}
 
 	if (win_data->scan_flags & DRM_MODE_FLAG_INTERLACE) {
@@ -447,8 +448,8 @@ static void vp_video_buffer(struct mixer_context *ctx, int win)
 			luma_addr[1] = luma_addr[0] + 0x40;
 			chroma_addr[1] = chroma_addr[0] + 0x40;
 		} else {
-			luma_addr[1] = luma_addr[0] + win_data->fb_width;
-			chroma_addr[1] = chroma_addr[0] + win_data->fb_width;
+			luma_addr[1] = luma_addr[0] + win_data->fb_pitch;
+			chroma_addr[1] = chroma_addr[0] + win_data->fb_pitch;
 		}
 	} else {
 		ctx->interlace = false;
@@ -469,10 +470,10 @@ static void vp_video_buffer(struct mixer_context *ctx, int win)
 	vp_reg_writemask(res, VP_MODE, val, VP_MODE_FMT_MASK);
 
 	/* setting size of input image */
-	vp_reg_write(res, VP_IMG_SIZE_Y, VP_IMG_HSIZE(win_data->fb_width) |
+	vp_reg_write(res, VP_IMG_SIZE_Y, VP_IMG_HSIZE(win_data->fb_pitch) |
 		VP_IMG_VSIZE(win_data->fb_height));
 	/* chroma height has to reduced by 2 to avoid chroma distorions */
-	vp_reg_write(res, VP_IMG_SIZE_C, VP_IMG_HSIZE(win_data->fb_width) |
+	vp_reg_write(res, VP_IMG_SIZE_C, VP_IMG_HSIZE(win_data->fb_pitch) |
 		VP_IMG_VSIZE(win_data->fb_height / 2));
 
 	vp_reg_write(res, VP_SRC_WIDTH, win_data->src_width);
@@ -559,7 +560,7 @@ static void mixer_graph_buffer(struct mixer_context *ctx, int win)
 	/* converting dma address base and source offset */
 	dma_addr = win_data->dma_addr
 		+ (win_data->fb_x * win_data->bpp >> 3)
-		+ (win_data->fb_y * win_data->fb_width * win_data->bpp >> 3);
+		+ (win_data->fb_y * win_data->fb_pitch);
 	src_x_offset = 0;
 	src_y_offset = 0;
 
@@ -576,7 +577,8 @@ static void mixer_graph_buffer(struct mixer_context *ctx, int win)
 		MXR_GRP_CFG_FORMAT_VAL(fmt), MXR_GRP_CFG_FORMAT_MASK);
 
 	/* setup geometry */
-	mixer_reg_write(res, MXR_GRAPHIC_SPAN(win), win_data->fb_width);
+	mixer_reg_write(res, MXR_GRAPHIC_SPAN(win),
+			win_data->fb_pitch / (win_data->bpp >> 3));
 
 	/* setup display size */
 	if (ctx->mxr_ver == MXR_VER_128_0_0_184 &&
@@ -961,6 +963,7 @@ static void mixer_win_mode_set(struct exynos_drm_crtc *crtc,
 	win_data->fb_y = plane->fb_y;
 	win_data->fb_width = plane->fb_width;
 	win_data->fb_height = plane->fb_height;
+	win_data->fb_pitch = plane->pitch;
 	win_data->src_width = plane->src_width;
 	win_data->src_height = plane->src_height;
 
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 96e811f..e8b18e5 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -152,12 +152,12 @@ describe_obj(struct seq_file *m, struct drm_i915_gem_object *obj)
 			seq_puts(m, " (pp");
 		else
 			seq_puts(m, " (g");
-		seq_printf(m, "gtt offset: %08lx, size: %08lx, type: %u)",
+		seq_printf(m, "gtt offset: %08llx, size: %08llx, type: %u)",
 			   vma->node.start, vma->node.size,
 			   vma->ggtt_view.type);
 	}
 	if (obj->stolen)
-		seq_printf(m, " (stolen: %08lx)", obj->stolen->start);
+		seq_printf(m, " (stolen: %08llx)", obj->stolen->start);
 	if (obj->pin_mappable || obj->fault_mappable) {
 		char s[3], *t = s;
 		if (obj->pin_mappable)
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 8039cec..5c66b56 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -622,7 +622,7 @@ static int i915_drm_suspend(struct drm_device *dev)
 	return 0;
 }
 
-static int i915_drm_suspend_late(struct drm_device *drm_dev)
+static int i915_drm_suspend_late(struct drm_device *drm_dev, bool hibernation)
 {
 	struct drm_i915_private *dev_priv = drm_dev->dev_private;
 	int ret;
@@ -636,7 +636,17 @@ static int i915_drm_suspend_late(struct drm_device *drm_dev)
 	}
 
 	pci_disable_device(drm_dev->pdev);
-	pci_set_power_state(drm_dev->pdev, PCI_D3hot);
+	/*
+	 * During hibernation on some GEN4 platforms the BIOS may try to access
+	 * the device even though it's already in D3 and hang the machine. So
+	 * leave the device in D0 on those platforms and hope the BIOS will
+	 * power down the device properly. Platforms where this was seen:
+	 * Lenovo Thinkpad X301, X61s
+	 */
+	if (!(hibernation &&
+	      drm_dev->pdev->subsystem_vendor == PCI_VENDOR_ID_LENOVO &&
+	      INTEL_INFO(dev_priv)->gen == 4))
+		pci_set_power_state(drm_dev->pdev, PCI_D3hot);
 
 	return 0;
 }
@@ -662,7 +672,7 @@ int i915_suspend_legacy(struct drm_device *dev, pm_message_t state)
 	if (error)
 		return error;
 
-	return i915_drm_suspend_late(dev);
+	return i915_drm_suspend_late(dev, false);
 }
 
 static int i915_drm_resume(struct drm_device *dev)
@@ -950,7 +960,17 @@ static int i915_pm_suspend_late(struct device *dev)
 	if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF)
 		return 0;
 
-	return i915_drm_suspend_late(drm_dev);
+	return i915_drm_suspend_late(drm_dev, false);
+}
+
+static int i915_pm_poweroff_late(struct device *dev)
+{
+	struct drm_device *drm_dev = dev_to_i915(dev)->dev;
+
+	if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF)
+		return 0;
+
+	return i915_drm_suspend_late(drm_dev, true);
 }
 
 static int i915_pm_resume_early(struct device *dev)
@@ -1075,6 +1095,7 @@ static void vlv_save_gunit_s0ix_state(struct drm_i915_private *dev_priv)
 	/* Gunit-Display CZ domain, 0x182028-0x1821CF */
 	s->gu_ctl0		= I915_READ(VLV_GU_CTL0);
 	s->gu_ctl1		= I915_READ(VLV_GU_CTL1);
+	s->pcbr			= I915_READ(VLV_PCBR);
 	s->clock_gate_dis2	= I915_READ(VLV_GUNIT_CLOCK_GATE2);
 
 	/*
@@ -1169,6 +1190,7 @@ static void vlv_restore_gunit_s0ix_state(struct drm_i915_private *dev_priv)
 	/* Gunit-Display CZ domain, 0x182028-0x1821CF */
 	I915_WRITE(VLV_GU_CTL0,			s->gu_ctl0);
 	I915_WRITE(VLV_GU_CTL1,			s->gu_ctl1);
+	I915_WRITE(VLV_PCBR,			s->pcbr);
 	I915_WRITE(VLV_GUNIT_CLOCK_GATE2,	s->clock_gate_dis2);
 }
 
@@ -1177,19 +1199,7 @@ int vlv_force_gfx_clock(struct drm_i915_private *dev_priv, bool force_on)
 	u32 val;
 	int err;
 
-	val = I915_READ(VLV_GTLC_SURVIVABILITY_REG);
-	WARN_ON(!!(val & VLV_GFX_CLK_FORCE_ON_BIT) == force_on);
-
 #define COND (I915_READ(VLV_GTLC_SURVIVABILITY_REG) & VLV_GFX_CLK_STATUS_BIT)
-	/* Wait for a previous force-off to settle */
-	if (force_on) {
-		err = wait_for(!COND, 20);
-		if (err) {
-			DRM_ERROR("timeout waiting for GFX clock force-off (%08x)\n",
-				  I915_READ(VLV_GTLC_SURVIVABILITY_REG));
-			return err;
-		}
-	}
 
 	val = I915_READ(VLV_GTLC_SURVIVABILITY_REG);
 	val &= ~VLV_GFX_CLK_FORCE_ON_BIT;
@@ -1520,7 +1530,7 @@ static const struct dev_pm_ops i915_pm_ops = {
 	.thaw_early = i915_pm_resume_early,
 	.thaw = i915_pm_resume,
 	.poweroff = i915_pm_suspend,
-	.poweroff_late = i915_pm_suspend_late,
+	.poweroff_late = i915_pm_poweroff_late,
 	.restore_early = i915_pm_resume_early,
 	.restore = i915_pm_resume,
 
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index f2a825e..b4faa2d 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -1094,6 +1094,7 @@ struct vlv_s0ix_state {
 	/* Display 2 CZ domain */
 	u32 gu_ctl0;
 	u32 gu_ctl1;
+	u32 pcbr;
 	u32 clock_gate_dis2;
 };
 
@@ -2114,6 +2115,9 @@ void i915_gem_track_fb(struct drm_i915_gem_object *old,
  * number comparisons on buffer last_read|write_seqno. It also allows an
  * emission time to be associated with the request for tracking how far ahead
  * of the GPU the submission is.
+ *
+ * The requests are reference counted, so upon creation they should have an
+ * initial reference taken using kref_init
  */
 struct drm_i915_gem_request {
 	struct kref ref;
@@ -2137,7 +2141,16 @@ struct drm_i915_gem_request {
 	/** Position in the ringbuffer of the end of the whole request */
 	u32 tail;
 
-	/** Context related to this request */
+	/**
+	 * Context related to this request
+	 * Contexts are refcounted, so when this request is associated with a
+	 * context, we must increment the context's refcount, to guarantee that
+	 * it persists while any request is linked to it. Requests themselves
+	 * are also refcounted, so the request will only be freed when the last
+	 * reference to it is dismissed, and the code in
+	 * i915_gem_request_free() will then decrement the refcount on the
+	 * context.
+	 */
 	struct intel_context *ctx;
 
 	/** Batch buffer related to this request if any */
@@ -2374,6 +2387,7 @@ struct drm_i915_cmd_table {
 				 (INTEL_DEVID(dev) & 0xFF00) == 0x0C00)
 #define IS_BDW_ULT(dev)		(IS_BROADWELL(dev) && \
 				 ((INTEL_DEVID(dev) & 0xf) == 0x6 ||	\
+				 (INTEL_DEVID(dev) & 0xf) == 0xb ||	\
 				 (INTEL_DEVID(dev) & 0xf) == 0xe))
 #define IS_BDW_GT3(dev)		(IS_BROADWELL(dev) && \
 				 (INTEL_DEVID(dev) & 0x00F0) == 0x0020)
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index c26d36c..27ea6bd 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -2659,8 +2659,7 @@ static void i915_gem_reset_ring_cleanup(struct drm_i915_private *dev_priv,
 		if (submit_req->ctx != ring->default_context)
 			intel_lr_context_unpin(ring, submit_req->ctx);
 
-		i915_gem_context_unreference(submit_req->ctx);
-		kfree(submit_req);
+		i915_gem_request_unreference(submit_req);
 	}
 
 	/*
@@ -2738,24 +2737,11 @@ i915_gem_retire_requests_ring(struct intel_engine_cs *ring)
 
 	WARN_ON(i915_verify_lists(ring->dev));
 
-	/* Move any buffers on the active list that are no longer referenced
-	 * by the ringbuffer to the flushing/inactive lists as appropriate,
-	 * before we free the context associated with the requests.
+	/* Retire requests first as we use it above for the early return.
+	 * If we retire requests last, we may use a later seqno and so clear
+	 * the requests lists without clearing the active list, leading to
+	 * confusion.
 	 */
-	while (!list_empty(&ring->active_list)) {
-		struct drm_i915_gem_object *obj;
-
-		obj = list_first_entry(&ring->active_list,
-				      struct drm_i915_gem_object,
-				      ring_list);
-
-		if (!i915_gem_request_completed(obj->last_read_req, true))
-			break;
-
-		i915_gem_object_move_to_inactive(obj);
-	}
-
-
 	while (!list_empty(&ring->request_list)) {
 		struct drm_i915_gem_request *request;
 		struct intel_ringbuffer *ringbuf;
@@ -2790,6 +2776,23 @@ i915_gem_retire_requests_ring(struct intel_engine_cs *ring)
 		i915_gem_free_request(request);
 	}
 
+	/* Move any buffers on the active list that are no longer referenced
+	 * by the ringbuffer to the flushing/inactive lists as appropriate,
+	 * before we free the context associated with the requests.
+	 */
+	while (!list_empty(&ring->active_list)) {
+		struct drm_i915_gem_object *obj;
+
+		obj = list_first_entry(&ring->active_list,
+				      struct drm_i915_gem_object,
+				      ring_list);
+
+		if (!i915_gem_request_completed(obj->last_read_req, true))
+			break;
+
+		i915_gem_object_move_to_inactive(obj);
+	}
+
 	if (unlikely(ring->trace_irq_req &&
 		     i915_gem_request_completed(ring->trace_irq_req, true))) {
 		ring->irq_put(ring);
@@ -2937,9 +2940,9 @@ i915_gem_wait_ioctl(struct drm_device *dev, void *data, struct drm_file *file)
 	req = obj->last_read_req;
 
 	/* Do this after OLR check to make sure we make forward progress polling
-	 * on this IOCTL with a timeout <=0 (like busy ioctl)
+	 * on this IOCTL with a timeout == 0 (like busy ioctl)
 	 */
-	if (args->timeout_ns <= 0) {
+	if (args->timeout_ns == 0) {
 		ret = -ETIME;
 		goto out;
 	}
@@ -2949,7 +2952,8 @@ i915_gem_wait_ioctl(struct drm_device *dev, void *data, struct drm_file *file)
 	i915_gem_request_reference(req);
 	mutex_unlock(&dev->struct_mutex);
 
-	ret = __i915_wait_request(req, reset_counter, true, &args->timeout_ns,
+	ret = __i915_wait_request(req, reset_counter, true,
+				  args->timeout_ns > 0 ? &args->timeout_ns : NULL,
 				  file->driver_priv);
 	mutex_lock(&dev->struct_mutex);
 	i915_gem_request_unreference(req);
@@ -4793,6 +4797,9 @@ i915_gem_init_hw(struct drm_device *dev)
 	if (INTEL_INFO(dev)->gen < 6 && !intel_enable_gtt())
 		return -EIO;
 
+	/* Double layer security blanket, see i915_gem_init() */
+	intel_uncore_forcewake_get(dev_priv, FORCEWAKE_ALL);
+
 	if (dev_priv->ellc_size)
 		I915_WRITE(HSW_IDICR, I915_READ(HSW_IDICR) | IDIHASHMSK(0xf));
 
@@ -4825,7 +4832,7 @@ i915_gem_init_hw(struct drm_device *dev)
 	for_each_ring(ring, dev_priv, i) {
 		ret = ring->init_hw(ring);
 		if (ret)
-			return ret;
+			goto out;
 	}
 
 	for (i = 0; i < NUM_L3_SLICES(dev); i++)
@@ -4842,9 +4849,11 @@ i915_gem_init_hw(struct drm_device *dev)
 		DRM_ERROR("Context enable failed %d\n", ret);
 		i915_gem_cleanup_ringbuffer(dev);
 
-		return ret;
+		goto out;
 	}
 
+out:
+	intel_uncore_forcewake_put(dev_priv, FORCEWAKE_ALL);
 	return ret;
 }
 
@@ -4878,6 +4887,14 @@ int i915_gem_init(struct drm_device *dev)
 		dev_priv->gt.stop_ring = intel_logical_ring_stop;
 	}
 
+	/* This is just a security blanket to placate dragons.
+	 * On some systems, we very sporadically observe that the first TLBs
+	 * used by the CS may be stale, despite us poking the TLB reset. If
+	 * we hold the forcewake during initialisation these problems
+	 * just magically go away.
+	 */
+	intel_uncore_forcewake_get(dev_priv, FORCEWAKE_ALL);
+
 	ret = i915_gem_init_userptr(dev);
 	if (ret)
 		goto out_unlock;
@@ -4904,6 +4921,7 @@ int i915_gem_init(struct drm_device *dev)
 	}
 
 out_unlock:
+	intel_uncore_forcewake_put(dev_priv, FORCEWAKE_ALL);
 	mutex_unlock(&dev->struct_mutex);
 
 	return ret;
diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
index b773368..38a7425 100644
--- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c
+++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
@@ -1487,7 +1487,7 @@ i915_gem_do_execbuffer(struct drm_device *dev, void *data,
 		goto err;
 	}
 
-	if (i915_needs_cmd_parser(ring)) {
+	if (i915_needs_cmd_parser(ring) && args->batch_len) {
 		batch_obj = i915_gem_execbuffer_parse(ring,
 						      &shadow_exec_entry,
 						      eb,
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index 746f77f..dccdc8a 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -1145,7 +1145,7 @@ static int gen6_ppgtt_init(struct i915_hw_ppgtt *ppgtt)
 
 	ppgtt->base.clear_range(&ppgtt->base, 0, ppgtt->base.total, true);
 
-	DRM_DEBUG_DRIVER("Allocated pde space (%ldM) at GTT entry: %lx\n",
+	DRM_DEBUG_DRIVER("Allocated pde space (%lldM) at GTT entry: %llx\n",
 			 ppgtt->node.size >> 20,
 			 ppgtt->node.start / PAGE_SIZE);
 
@@ -1713,8 +1713,8 @@ void i915_gem_gtt_finish_object(struct drm_i915_gem_object *obj)
 
 static void i915_gtt_color_adjust(struct drm_mm_node *node,
 				  unsigned long color,
-				  unsigned long *start,
-				  unsigned long *end)
+				  u64 *start,
+				  u64 *end)
 {
 	if (node->color != color)
 		*start += 4096;
diff --git a/drivers/gpu/drm/i915/i915_gem_stolen.c b/drivers/gpu/drm/i915/i915_gem_stolen.c
index a204584..9c6f93e 100644
--- a/drivers/gpu/drm/i915/i915_gem_stolen.c
+++ b/drivers/gpu/drm/i915/i915_gem_stolen.c
@@ -485,10 +485,8 @@ i915_gem_object_create_stolen_for_preallocated(struct drm_device *dev,
 			stolen_offset, gtt_offset, size);
 
 	/* KISS and expect everything to be page-aligned */
-	BUG_ON(stolen_offset & 4095);
-	BUG_ON(size & 4095);
-
-	if (WARN_ON(size == 0))
+	if (WARN_ON(size == 0) || WARN_ON(size & 4095) ||
+	    WARN_ON(stolen_offset & 4095))
 		return NULL;
 
 	stolen = kzalloc(sizeof(*stolen), GFP_KERNEL);
diff --git a/drivers/gpu/drm/i915/i915_gem_tiling.c b/drivers/gpu/drm/i915/i915_gem_tiling.c
index 7a24bd1..6377b22 100644
--- a/drivers/gpu/drm/i915/i915_gem_tiling.c
+++ b/drivers/gpu/drm/i915/i915_gem_tiling.c
@@ -335,9 +335,10 @@ i915_gem_set_tiling(struct drm_device *dev, void *data,
 		return -EINVAL;
 	}
 
+	mutex_lock(&dev->struct_mutex);
 	if (i915_gem_obj_is_pinned(obj) || obj->framebuffer_references) {
-		drm_gem_object_unreference_unlocked(&obj->base);
-		return -EBUSY;
+		ret = -EBUSY;
+		goto err;
 	}
 
 	if (args->tiling_mode == I915_TILING_NONE) {
@@ -369,7 +370,6 @@ i915_gem_set_tiling(struct drm_device *dev, void *data,
 		}
 	}
 
-	mutex_lock(&dev->struct_mutex);
 	if (args->tiling_mode != obj->tiling_mode ||
 	    args->stride != obj->stride) {
 		/* We need to rebind the object if its current allocation
@@ -424,6 +424,7 @@ i915_gem_set_tiling(struct drm_device *dev, void *data,
 		obj->bit_17 = NULL;
 	}
 
+err:
 	drm_gem_object_unreference(&obj->base);
 	mutex_unlock(&dev->struct_mutex);
 
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 4145d95..ede5bbb 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -1892,6 +1892,9 @@ static irqreturn_t valleyview_irq_handler(int irq, void *arg)
 	u32 iir, gt_iir, pm_iir;
 	irqreturn_t ret = IRQ_NONE;
 
+	if (!intel_irqs_enabled(dev_priv))
+		return IRQ_NONE;
+
 	while (true) {
 		/* Find, clear, then process each source of interrupt */
 
@@ -1936,6 +1939,9 @@ static irqreturn_t cherryview_irq_handler(int irq, void *arg)
 	u32 master_ctl, iir;
 	irqreturn_t ret = IRQ_NONE;
 
+	if (!intel_irqs_enabled(dev_priv))
+		return IRQ_NONE;
+
 	for (;;) {
 		master_ctl = I915_READ(GEN8_MASTER_IRQ) & ~GEN8_MASTER_IRQ_CONTROL;
 		iir = I915_READ(VLV_IIR);
@@ -2208,6 +2214,9 @@ static irqreturn_t ironlake_irq_handler(int irq, void *arg)
 	u32 de_iir, gt_iir, de_ier, sde_ier = 0;
 	irqreturn_t ret = IRQ_NONE;
 
+	if (!intel_irqs_enabled(dev_priv))
+		return IRQ_NONE;
+
 	/* We get interrupts on unclaimed registers, so check for this before we
 	 * do any I915_{READ,WRITE}. */
 	intel_uncore_check_errors(dev);
@@ -2279,6 +2288,9 @@ static irqreturn_t gen8_irq_handler(int irq, void *arg)
 	enum pipe pipe;
 	u32 aux_mask = GEN8_AUX_CHANNEL_A;
 
+	if (!intel_irqs_enabled(dev_priv))
+		return IRQ_NONE;
+
 	if (IS_GEN9(dev))
 		aux_mask |=  GEN9_AUX_CHANNEL_B | GEN9_AUX_CHANNEL_C |
 			GEN9_AUX_CHANNEL_D;
@@ -3771,6 +3783,9 @@ static irqreturn_t i8xx_irq_handler(int irq, void *arg)
 		I915_DISPLAY_PLANE_A_FLIP_PENDING_INTERRUPT |
 		I915_DISPLAY_PLANE_B_FLIP_PENDING_INTERRUPT;
 
+	if (!intel_irqs_enabled(dev_priv))
+		return IRQ_NONE;
+
 	iir = I915_READ16(IIR);
 	if (iir == 0)
 		return IRQ_NONE;
@@ -3951,6 +3966,9 @@ static irqreturn_t i915_irq_handler(int irq, void *arg)
 		I915_DISPLAY_PLANE_B_FLIP_PENDING_INTERRUPT;
 	int pipe, ret = IRQ_NONE;
 
+	if (!intel_irqs_enabled(dev_priv))
+		return IRQ_NONE;
+
 	iir = I915_READ(IIR);
 	do {
 		bool irq_received = (iir & ~flip_mask) != 0;
@@ -4171,6 +4189,9 @@ static irqreturn_t i965_irq_handler(int irq, void *arg)
 		I915_DISPLAY_PLANE_A_FLIP_PENDING_INTERRUPT |
 		I915_DISPLAY_PLANE_B_FLIP_PENDING_INTERRUPT;
 
+	if (!intel_irqs_enabled(dev_priv))
+		return IRQ_NONE;
+
 	iir = I915_READ(IIR);
 
 	for (;;) {
@@ -4520,6 +4541,7 @@ void intel_runtime_pm_disable_interrupts(struct drm_i915_private *dev_priv)
 {
 	dev_priv->dev->driver->irq_uninstall(dev_priv->dev);
 	dev_priv->pm.irqs_enabled = false;
+	synchronize_irq(dev_priv->dev->irq);
 }
 
 /**
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 3d220a6..f75173c 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -37,6 +37,7 @@
 #include <drm/i915_drm.h>
 #include "i915_drv.h"
 #include "i915_trace.h"
+#include <drm/drm_atomic.h>
 #include <drm/drm_atomic_helper.h>
 #include <drm/drm_dp_helper.h>
 #include <drm/drm_crtc_helper.h>
@@ -2371,13 +2372,19 @@ intel_alloc_plane_obj(struct intel_crtc *crtc,
 	struct drm_device *dev = crtc->base.dev;
 	struct drm_i915_gem_object *obj = NULL;
 	struct drm_mode_fb_cmd2 mode_cmd = { 0 };
-	u32 base = plane_config->base;
+	u32 base_aligned = round_down(plane_config->base, PAGE_SIZE);
+	u32 size_aligned = round_up(plane_config->base + plane_config->size,
+				    PAGE_SIZE);
+
+	size_aligned -= base_aligned;
 
 	if (plane_config->size == 0)
 		return false;
 
-	obj = i915_gem_object_create_stolen_for_preallocated(dev, base, base,
-							     plane_config->size);
+	obj = i915_gem_object_create_stolen_for_preallocated(dev,
+							     base_aligned,
+							     base_aligned,
+							     size_aligned);
 	if (!obj)
 		return false;
 
@@ -2410,6 +2417,14 @@ out_unref_obj:
 	return false;
 }
 
+/* Update plane->state->fb to match plane->fb after driver-internal updates */
+static void
+update_state_fb(struct drm_plane *plane)
+{
+	if (plane->fb != plane->state->fb)
+		drm_atomic_set_fb_for_plane(plane->state, plane->fb);
+}
+
 static void
 intel_find_plane_obj(struct intel_crtc *intel_crtc,
 		     struct intel_initial_plane_config *plane_config)
@@ -2423,8 +2438,15 @@ intel_find_plane_obj(struct intel_crtc *intel_crtc,
 	if (!intel_crtc->base.primary->fb)
 		return;
 
-	if (intel_alloc_plane_obj(intel_crtc, plane_config))
+	if (intel_alloc_plane_obj(intel_crtc, plane_config)) {
+		struct drm_plane *primary = intel_crtc->base.primary;
+
+		primary->state->crtc = &intel_crtc->base;
+		primary->crtc = &intel_crtc->base;
+		update_state_fb(primary);
+
 		return;
+	}
 
 	kfree(intel_crtc->base.primary->fb);
 	intel_crtc->base.primary->fb = NULL;
@@ -2447,15 +2469,21 @@ intel_find_plane_obj(struct intel_crtc *intel_crtc,
 			continue;
 
 		if (i915_gem_obj_ggtt_offset(obj) == plane_config->base) {
+			struct drm_plane *primary = intel_crtc->base.primary;
+
 			if (obj->tiling_mode != I915_TILING_NONE)
 				dev_priv->preserve_bios_swizzle = true;
 
 			drm_framebuffer_reference(c->primary->fb);
-			intel_crtc->base.primary->fb = c->primary->fb;
+			primary->fb = c->primary->fb;
+			primary->state->crtc = &intel_crtc->base;
+			primary->crtc = &intel_crtc->base;
 			obj->frontbuffer_bits |= INTEL_FRONTBUFFER_PRIMARY(intel_crtc->pipe);
 			break;
 		}
 	}
+
+	update_state_fb(intel_crtc->base.primary);
 }
 
 static void i9xx_update_primary_plane(struct drm_crtc *crtc,
@@ -2725,10 +2753,19 @@ static void skylake_update_primary_plane(struct drm_crtc *crtc,
 	case DRM_FORMAT_XRGB8888:
 		plane_ctl |= PLANE_CTL_FORMAT_XRGB_8888;
 		break;
+	case DRM_FORMAT_ARGB8888:
+		plane_ctl |= PLANE_CTL_FORMAT_XRGB_8888;
+		plane_ctl |= PLANE_CTL_ALPHA_SW_PREMULTIPLY;
+		break;
 	case DRM_FORMAT_XBGR8888:
 		plane_ctl |= PLANE_CTL_ORDER_RGBX;
 		plane_ctl |= PLANE_CTL_FORMAT_XRGB_8888;
 		break;
+	case DRM_FORMAT_ABGR8888:
+		plane_ctl |= PLANE_CTL_ORDER_RGBX;
+		plane_ctl |= PLANE_CTL_FORMAT_XRGB_8888;
+		plane_ctl |= PLANE_CTL_ALPHA_SW_PREMULTIPLY;
+		break;
 	case DRM_FORMAT_XRGB2101010:
 		plane_ctl |= PLANE_CTL_FORMAT_XRGB_2101010;
 		break;
@@ -6587,6 +6624,10 @@ i9xx_get_initial_plane_config(struct intel_crtc *crtc,
 	struct drm_framebuffer *fb;
 	struct intel_framebuffer *intel_fb;
 
+	val = I915_READ(DSPCNTR(plane));
+	if (!(val & DISPLAY_PLANE_ENABLE))
+		return;
+
 	intel_fb = kzalloc(sizeof(*intel_fb), GFP_KERNEL);
 	if (!intel_fb) {
 		DRM_DEBUG_KMS("failed to alloc fb\n");
@@ -6595,8 +6636,6 @@ i9xx_get_initial_plane_config(struct intel_crtc *crtc,
 
 	fb = &intel_fb->base;
 
-	val = I915_READ(DSPCNTR(plane));
-
 	if (INTEL_INFO(dev)->gen >= 4)
 		if (val & DISPPLANE_TILED)
 			plane_config->tiling = I915_TILING_X;
@@ -6627,7 +6666,7 @@ i9xx_get_initial_plane_config(struct intel_crtc *crtc,
 	aligned_height = intel_fb_align_height(dev, fb->height,
 					       plane_config->tiling);
 
-	plane_config->size = PAGE_ALIGN(fb->pitches[0] * aligned_height);
+	plane_config->size = fb->pitches[0] * aligned_height;
 
 	DRM_DEBUG_KMS("pipe/plane %c/%d with fb: size=%dx%d@%d, offset=%x, pitch %d, size 0x%x\n",
 		      pipe_name(pipe), plane, fb->width, fb->height,
@@ -7628,6 +7667,9 @@ skylake_get_initial_plane_config(struct intel_crtc *crtc,
 	fb = &intel_fb->base;
 
 	val = I915_READ(PLANE_CTL(pipe, 0));
+	if (!(val & PLANE_CTL_ENABLE))
+		goto error;
+
 	if (val & PLANE_CTL_TILED_MASK)
 		plane_config->tiling = I915_TILING_X;
 
@@ -7664,7 +7706,7 @@ skylake_get_initial_plane_config(struct intel_crtc *crtc,
 	aligned_height = intel_fb_align_height(dev, fb->height,
 					       plane_config->tiling);
 
-	plane_config->size = ALIGN(fb->pitches[0] * aligned_height, PAGE_SIZE);
+	plane_config->size = fb->pitches[0] * aligned_height;
 
 	DRM_DEBUG_KMS("pipe %c with fb: size=%dx%d@%d, offset=%x, pitch %d, size 0x%x\n",
 		      pipe_name(pipe), fb->width, fb->height,
@@ -7715,6 +7757,10 @@ ironlake_get_initial_plane_config(struct intel_crtc *crtc,
 	struct drm_framebuffer *fb;
 	struct intel_framebuffer *intel_fb;
 
+	val = I915_READ(DSPCNTR(pipe));
+	if (!(val & DISPLAY_PLANE_ENABLE))
+		return;
+
 	intel_fb = kzalloc(sizeof(*intel_fb), GFP_KERNEL);
 	if (!intel_fb) {
 		DRM_DEBUG_KMS("failed to alloc fb\n");
@@ -7723,8 +7769,6 @@ ironlake_get_initial_plane_config(struct intel_crtc *crtc,
 
 	fb = &intel_fb->base;
 
-	val = I915_READ(DSPCNTR(pipe));
-
 	if (INTEL_INFO(dev)->gen >= 4)
 		if (val & DISPPLANE_TILED)
 			plane_config->tiling = I915_TILING_X;
@@ -7755,7 +7799,7 @@ ironlake_get_initial_plane_config(struct intel_crtc *crtc,
 	aligned_height = intel_fb_align_height(dev, fb->height,
 					       plane_config->tiling);
 
-	plane_config->size = PAGE_ALIGN(fb->pitches[0] * aligned_height);
+	plane_config->size = fb->pitches[0] * aligned_height;
 
 	DRM_DEBUG_KMS("pipe %c with fb: size=%dx%d@%d, offset=%x, pitch %d, size 0x%x\n",
 		      pipe_name(pipe), fb->width, fb->height,
@@ -8698,6 +8742,7 @@ retry:
 			old->release_fb->funcs->destroy(old->release_fb);
 		goto fail;
 	}
+	crtc->primary->crtc = crtc;
 
 	/* let the connector get through one full cycle before testing */
 	intel_wait_for_vblank(dev, intel_crtc->pipe);
@@ -9700,7 +9745,7 @@ void intel_check_page_flip(struct drm_device *dev, int pipe)
 	struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe];
 	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
 
-	WARN_ON(!in_irq());
+	WARN_ON(!in_interrupt());
 
 	if (crtc == NULL)
 		return;
@@ -9800,6 +9845,7 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc,
 	drm_gem_object_reference(&obj->base);
 
 	crtc->primary->fb = fb;
+	update_state_fb(crtc->primary);
 
 	work->pending_flip_obj = obj;
 
@@ -9868,6 +9914,7 @@ cleanup_unpin:
 cleanup_pending:
 	atomic_dec(&intel_crtc->unpin_work_count);
 	crtc->primary->fb = old_fb;
+	update_state_fb(crtc->primary);
 	drm_gem_object_unreference(&work->old_fb_obj->base);
 	drm_gem_object_unreference(&obj->base);
 	mutex_unlock(&dev->struct_mutex);
@@ -12182,9 +12229,6 @@ intel_check_cursor_plane(struct drm_plane *plane,
 		return -ENOMEM;
 	}
 
-	if (fb == crtc->cursor->fb)
-		return 0;
-
 	/* we only need to pin inside GTT if cursor is non-phy */
 	mutex_lock(&dev->struct_mutex);
 	if (!INTEL_INFO(dev)->cursor_needs_physical && obj->tiling_mode) {
@@ -13096,6 +13140,9 @@ static struct intel_quirk intel_quirks[] = {
 
 	/* HP Chromebook 14 (Celeron 2955U) */
 	{ 0x0a06, 0x103c, 0x21ed, quirk_backlight_present },
+
+	/* Dell Chromebook 11 */
+	{ 0x0a06, 0x1028, 0x0a35, quirk_backlight_present },
 };
 
 static void intel_init_quirks(struct drm_device *dev)
@@ -13702,6 +13749,7 @@ void intel_modeset_gem_init(struct drm_device *dev)
 				  to_intel_crtc(c)->pipe);
 			drm_framebuffer_unreference(c->primary->fb);
 			c->primary->fb = NULL;
+			update_state_fb(c->primary);
 		}
 	}
 	mutex_unlock(&dev->struct_mutex);
diff --git a/drivers/gpu/drm/i915/intel_fifo_underrun.c b/drivers/gpu/drm/i915/intel_fifo_underrun.c
index 04e248d..54daa66 100644
--- a/drivers/gpu/drm/i915/intel_fifo_underrun.c
+++ b/drivers/gpu/drm/i915/intel_fifo_underrun.c
@@ -282,16 +282,6 @@ bool intel_set_cpu_fifo_underrun_reporting(struct drm_i915_private *dev_priv,
 	return ret;
 }
 
-static bool
-__cpu_fifo_underrun_reporting_enabled(struct drm_i915_private *dev_priv,
-				      enum pipe pipe)
-{
-	struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe];
-	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
-
-	return !intel_crtc->cpu_fifo_underrun_disabled;
-}
-
 /**
  * intel_set_pch_fifo_underrun_reporting - set PCH fifo underrun reporting state
  * @dev_priv: i915 device instance
@@ -352,9 +342,15 @@ bool intel_set_pch_fifo_underrun_reporting(struct drm_i915_private *dev_priv,
 void intel_cpu_fifo_underrun_irq_handler(struct drm_i915_private *dev_priv,
 					 enum pipe pipe)
 {
+	struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe];
+
+	/* We may be called too early in init, thanks BIOS! */
+	if (crtc == NULL)
+		return;
+
 	/* GMCH can't disable fifo underruns, filter them. */
 	if (HAS_GMCH_DISPLAY(dev_priv->dev) &&
-	    !__cpu_fifo_underrun_reporting_enabled(dev_priv, pipe))
+	    to_intel_crtc(crtc)->cpu_fifo_underrun_disabled)
 		return;
 
 	if (intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, false))
diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c
index 0f358c5..e8d3da9 100644
--- a/drivers/gpu/drm/i915/intel_lrc.c
+++ b/drivers/gpu/drm/i915/intel_lrc.c
@@ -503,18 +503,19 @@ static int execlists_context_queue(struct intel_engine_cs *ring,
 		 * If there isn't a request associated with this submission,
 		 * create one as a temporary holder.
 		 */
-		WARN(1, "execlist context submission without request");
 		request = kzalloc(sizeof(*request), GFP_KERNEL);
 		if (request == NULL)
 			return -ENOMEM;
 		request->ring = ring;
 		request->ctx = to;
+		kref_init(&request->ref);
+		request->uniq = dev_priv->request_uniq++;
+		i915_gem_context_reference(request->ctx);
 	} else {
+		i915_gem_request_reference(request);
 		WARN_ON(to != request->ctx);
 	}
 	request->tail = tail;
-	i915_gem_request_reference(request);
-	i915_gem_context_reference(request->ctx);
 
 	intel_runtime_pm_get(dev_priv);
 
@@ -731,7 +732,6 @@ void intel_execlists_retire_requests(struct intel_engine_cs *ring)
 		if (ctx_obj && (ctx != ring->default_context))
 			intel_lr_context_unpin(ring, ctx);
 		intel_runtime_pm_put(dev_priv);
-		i915_gem_context_unreference(ctx);
 		list_del(&req->execlist_link);
 		i915_gem_request_unreference(req);
 	}
diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c
index 0a52c44..9c5451c 100644
--- a/drivers/gpu/drm/i915/intel_sprite.c
+++ b/drivers/gpu/drm/i915/intel_sprite.c
@@ -1322,7 +1322,7 @@ int intel_sprite_set_colorkey(struct drm_device *dev, void *data,
 	drm_modeset_lock_all(dev);
 
 	plane = drm_plane_find(dev, set->plane_id);
-	if (!plane) {
+	if (!plane || plane->type != DRM_PLANE_TYPE_OVERLAY) {
 		ret = -ENOENT;
 		goto out_unlock;
 	}
@@ -1349,7 +1349,7 @@ int intel_sprite_get_colorkey(struct drm_device *dev, void *data,
 	drm_modeset_lock_all(dev);
 
 	plane = drm_plane_find(dev, get->plane_id);
-	if (!plane) {
+	if (!plane || plane->type != DRM_PLANE_TYPE_OVERLAY) {
 		ret = -ENOENT;
 		goto out_unlock;
 	}
diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c
index c47a3ba..4e8fb89 100644
--- a/drivers/gpu/drm/i915/intel_uncore.c
+++ b/drivers/gpu/drm/i915/intel_uncore.c
@@ -1048,8 +1048,14 @@ static void intel_uncore_fw_domains_init(struct drm_device *dev)
 
 		/* We need to init first for ECOBUS access and then
 		 * determine later if we want to reinit, in case of MT access is
-		 * not working
+		 * not working. In this stage we don't know which flavour this
+		 * ivb is, so it is better to reset also the gen6 fw registers
+		 * before the ecobus check.
 		 */
+
+		__raw_i915_write32(dev_priv, FORCEWAKE, 0);
+		__raw_posting_read(dev_priv, ECOBUS);
+
 		fw_domain_init(dev_priv, FW_DOMAIN_ID_RENDER,
 			       FORCEWAKE_MT, FORCEWAKE_MT_ACK);
 
diff --git a/drivers/gpu/drm/imx/dw_hdmi-imx.c b/drivers/gpu/drm/imx/dw_hdmi-imx.c
index 121d30c..87fe8ed 100644
--- a/drivers/gpu/drm/imx/dw_hdmi-imx.c
+++ b/drivers/gpu/drm/imx/dw_hdmi-imx.c
@@ -70,7 +70,9 @@ static const struct dw_hdmi_curr_ctrl imx_cur_ctr[] = {
 		118800000, { 0x091c, 0x091c, 0x06dc },
 	}, {
 		216000000, { 0x06dc, 0x0b5c, 0x091c },
-	}
+	}, {
+		~0UL, { 0x0000, 0x0000, 0x0000 },
+	},
 };
 
 static const struct dw_hdmi_sym_term imx_sym_term[] = {
@@ -136,11 +138,34 @@ static struct drm_encoder_funcs dw_hdmi_imx_encoder_funcs = {
 	.destroy = drm_encoder_cleanup,
 };
 
+static enum drm_mode_status imx6q_hdmi_mode_valid(struct drm_connector *con,
+						  struct drm_display_mode *mode)
+{
+	if (mode->clock < 13500)
+		return MODE_CLOCK_LOW;
+	if (mode->clock > 266000)
+		return MODE_CLOCK_HIGH;
+
+	return MODE_OK;
+}
+
+static enum drm_mode_status imx6dl_hdmi_mode_valid(struct drm_connector *con,
+						   struct drm_display_mode *mode)
+{
+	if (mode->clock < 13500)
+		return MODE_CLOCK_LOW;
+	if (mode->clock > 270000)
+		return MODE_CLOCK_HIGH;
+
+	return MODE_OK;
+}
+
 static struct dw_hdmi_plat_data imx6q_hdmi_drv_data = {
-	.mpll_cfg = imx_mpll_cfg,
-	.cur_ctr  = imx_cur_ctr,
-	.sym_term = imx_sym_term,
-	.dev_type = IMX6Q_HDMI,
+	.mpll_cfg   = imx_mpll_cfg,
+	.cur_ctr    = imx_cur_ctr,
+	.sym_term   = imx_sym_term,
+	.dev_type   = IMX6Q_HDMI,
+	.mode_valid = imx6q_hdmi_mode_valid,
 };
 
 static struct dw_hdmi_plat_data imx6dl_hdmi_drv_data = {
@@ -148,6 +173,7 @@ static struct dw_hdmi_plat_data imx6dl_hdmi_drv_data = {
 	.cur_ctr  = imx_cur_ctr,
 	.sym_term = imx_sym_term,
 	.dev_type = IMX6DL_HDMI,
+	.mode_valid = imx6dl_hdmi_mode_valid,
 };
 
 static const struct of_device_id dw_hdmi_imx_dt_ids[] = {
diff --git a/drivers/gpu/drm/imx/imx-ldb.c b/drivers/gpu/drm/imx/imx-ldb.c
index 1b86aac..2d6dc94 100644
--- a/drivers/gpu/drm/imx/imx-ldb.c
+++ b/drivers/gpu/drm/imx/imx-ldb.c
@@ -163,22 +163,7 @@ static void imx_ldb_encoder_prepare(struct drm_encoder *encoder)
 {
 	struct imx_ldb_channel *imx_ldb_ch = enc_to_imx_ldb_ch(encoder);
 	struct imx_ldb *ldb = imx_ldb_ch->ldb;
-	struct drm_display_mode *mode = &encoder->crtc->hwmode;
 	u32 pixel_fmt;
-	unsigned long serial_clk;
-	unsigned long di_clk = mode->clock * 1000;
-	int mux = imx_drm_encoder_get_mux_id(imx_ldb_ch->child, encoder);
-
-	if (ldb->ldb_ctrl & LDB_SPLIT_MODE_EN) {
-		/* dual channel LVDS mode */
-		serial_clk = 3500UL * mode->clock;
-		imx_ldb_set_clock(ldb, mux, 0, serial_clk, di_clk);
-		imx_ldb_set_clock(ldb, mux, 1, serial_clk, di_clk);
-	} else {
-		serial_clk = 7000UL * mode->clock;
-		imx_ldb_set_clock(ldb, mux, imx_ldb_ch->chno, serial_clk,
-				di_clk);
-	}
 
 	switch (imx_ldb_ch->chno) {
 	case 0:
@@ -247,6 +232,9 @@ static void imx_ldb_encoder_mode_set(struct drm_encoder *encoder,
 	struct imx_ldb_channel *imx_ldb_ch = enc_to_imx_ldb_ch(encoder);
 	struct imx_ldb *ldb = imx_ldb_ch->ldb;
 	int dual = ldb->ldb_ctrl & LDB_SPLIT_MODE_EN;
+	unsigned long serial_clk;
+	unsigned long di_clk = mode->clock * 1000;
+	int mux = imx_drm_encoder_get_mux_id(imx_ldb_ch->child, encoder);
 
 	if (mode->clock > 170000) {
 		dev_warn(ldb->dev,
@@ -257,6 +245,16 @@ static void imx_ldb_encoder_mode_set(struct drm_encoder *encoder,
 			 "%s: mode exceeds 85 MHz pixel clock\n", __func__);
 	}
 
+	if (dual) {
+		serial_clk = 3500UL * mode->clock;
+		imx_ldb_set_clock(ldb, mux, 0, serial_clk, di_clk);
+		imx_ldb_set_clock(ldb, mux, 1, serial_clk, di_clk);
+	} else {
+		serial_clk = 7000UL * mode->clock;
+		imx_ldb_set_clock(ldb, mux, imx_ldb_ch->chno, serial_clk,
+				  di_clk);
+	}
+
 	/* FIXME - assumes straight connections DI0 --> CH0, DI1 --> CH1 */
 	if (imx_ldb_ch == &ldb->channel[0]) {
 		if (mode->flags & DRM_MODE_FLAG_NVSYNC)
diff --git a/drivers/gpu/drm/imx/parallel-display.c b/drivers/gpu/drm/imx/parallel-display.c
index 5e83e00..900dda6 100644
--- a/drivers/gpu/drm/imx/parallel-display.c
+++ b/drivers/gpu/drm/imx/parallel-display.c
@@ -236,8 +236,11 @@ static int imx_pd_bind(struct device *dev, struct device *master, void *data)
 	}
 
 	panel_node = of_parse_phandle(np, "fsl,panel", 0);
-	if (panel_node)
+	if (panel_node) {
 		imxpd->panel = of_drm_find_panel(panel_node);
+		if (!imxpd->panel)
+			return -EPROBE_DEFER;
+	}
 
 	imxpd->dev = dev;
 
diff --git a/drivers/gpu/drm/msm/edp/edp_ctrl.c b/drivers/gpu/drm/msm/edp/edp_ctrl.c
index 3e24621..0ec5abd 100644
--- a/drivers/gpu/drm/msm/edp/edp_ctrl.c
+++ b/drivers/gpu/drm/msm/edp/edp_ctrl.c
@@ -332,7 +332,7 @@ static int edp_regulator_enable(struct edp_ctrl *ctrl)
 		goto vdda_set_fail;
 	}
 
-	ret = regulator_set_optimum_mode(ctrl->vdda_vreg, VDDA_UA_ON_LOAD);
+	ret = regulator_set_load(ctrl->vdda_vreg, VDDA_UA_ON_LOAD);
 	if (ret < 0) {
 		pr_err("%s: vdda_vreg set regulator mode failed.\n", __func__);
 		goto vdda_set_fail;
@@ -356,7 +356,7 @@ static int edp_regulator_enable(struct edp_ctrl *ctrl)
 lvl_enable_fail:
 	regulator_disable(ctrl->vdda_vreg);
 vdda_enable_fail:
-	regulator_set_optimum_mode(ctrl->vdda_vreg, VDDA_UA_OFF_LOAD);
+	regulator_set_load(ctrl->vdda_vreg, VDDA_UA_OFF_LOAD);
 vdda_set_fail:
 	return ret;
 }
@@ -365,7 +365,7 @@ static void edp_regulator_disable(struct edp_ctrl *ctrl)
 {
 	regulator_disable(ctrl->lvl_vreg);
 	regulator_disable(ctrl->vdda_vreg);
-	regulator_set_optimum_mode(ctrl->vdda_vreg, VDDA_UA_OFF_LOAD);
+	regulator_set_load(ctrl->vdda_vreg, VDDA_UA_OFF_LOAD);
 }
 
 static int edp_gpio_config(struct edp_ctrl *ctrl)
diff --git a/drivers/gpu/drm/msm/mdp/mdp4/mdp4_irq.c b/drivers/gpu/drm/msm/mdp/mdp4/mdp4_irq.c
index 8edd531c..7369ee7 100644
--- a/drivers/gpu/drm/msm/mdp/mdp4/mdp4_irq.c
+++ b/drivers/gpu/drm/msm/mdp/mdp4/mdp4_irq.c
@@ -32,7 +32,10 @@ static void mdp4_irq_error_handler(struct mdp_irq *irq, uint32_t irqstatus)
 void mdp4_irq_preinstall(struct msm_kms *kms)
 {
 	struct mdp4_kms *mdp4_kms = to_mdp4_kms(to_mdp_kms(kms));
+	mdp4_enable(mdp4_kms);
 	mdp4_write(mdp4_kms, REG_MDP4_INTR_CLEAR, 0xffffffff);
+	mdp4_write(mdp4_kms, REG_MDP4_INTR_ENABLE, 0x00000000);
+	mdp4_disable(mdp4_kms);
 }
 
 int mdp4_irq_postinstall(struct msm_kms *kms)
@@ -53,7 +56,9 @@ int mdp4_irq_postinstall(struct msm_kms *kms)
 void mdp4_irq_uninstall(struct msm_kms *kms)
 {
 	struct mdp4_kms *mdp4_kms = to_mdp4_kms(to_mdp_kms(kms));
+	mdp4_enable(mdp4_kms);
 	mdp4_write(mdp4_kms, REG_MDP4_INTR_ENABLE, 0x00000000);
+	mdp4_disable(mdp4_kms);
 }
 
 irqreturn_t mdp4_irq(struct msm_kms *kms)
diff --git a/drivers/gpu/drm/msm/mdp/mdp5/mdp5.xml.h b/drivers/gpu/drm/msm/mdp/mdp5/mdp5.xml.h
index 09b4a25..c276624 100644
--- a/drivers/gpu/drm/msm/mdp/mdp5/mdp5.xml.h
+++ b/drivers/gpu/drm/msm/mdp/mdp5/mdp5.xml.h
@@ -8,17 +8,9 @@ http://github.com/freedreno/envytools/
 git clone https://github.com/freedreno/envytools.git
 
 The rules-ng-ng source files this header was generated from are:
-- /home/robclark/src/freedreno/envytools/rnndb/msm.xml                 (    676 bytes, from 2014-12-05 15:34:49)
-- /home/robclark/src/freedreno/envytools/rnndb/freedreno_copyright.xml (   1453 bytes, from 2013-03-31 16:51:27)
-- /home/robclark/src/freedreno/envytools/rnndb/mdp/mdp4.xml            (  20908 bytes, from 2014-12-08 16:13:00)
-- /home/robclark/src/freedreno/envytools/rnndb/mdp/mdp_common.xml      (   2357 bytes, from 2014-12-08 16:13:00)
-- /home/robclark/src/freedreno/envytools/rnndb/mdp/mdp5.xml            (  27208 bytes, from 2015-01-13 23:56:11)
-- /home/robclark/src/freedreno/envytools/rnndb/dsi/dsi.xml             (  11712 bytes, from 2013-08-17 17:13:43)
-- /home/robclark/src/freedreno/envytools/rnndb/dsi/sfpb.xml            (    344 bytes, from 2013-08-11 19:26:32)
-- /home/robclark/src/freedreno/envytools/rnndb/dsi/mmss_cc.xml         (   1686 bytes, from 2014-10-31 16:48:57)
-- /home/robclark/src/freedreno/envytools/rnndb/hdmi/qfprom.xml         (    600 bytes, from 2013-07-05 19:21:12)
-- /home/robclark/src/freedreno/envytools/rnndb/hdmi/hdmi.xml           (  26848 bytes, from 2015-01-13 23:55:57)
-- /home/robclark/src/freedreno/envytools/rnndb/edp/edp.xml             (   8253 bytes, from 2014-12-08 16:13:00)
+- /local/mnt2/workspace2/sviau/envytools/rnndb/mdp/mdp5.xml            (  27229 bytes, from 2015-02-10 17:00:41)
+- /local/mnt2/workspace2/sviau/envytools/rnndb/freedreno_copyright.xml (   1453 bytes, from 2014-06-02 18:31:15)
+- /local/mnt2/workspace2/sviau/envytools/rnndb/mdp/mdp_common.xml      (   2357 bytes, from 2015-01-23 16:20:19)
 
 Copyright (C) 2013-2015 by the following authors:
 - Rob Clark <robdclark@gmail.com> (robclark)
@@ -910,6 +902,7 @@ static inline uint32_t __offset_LM(uint32_t idx)
 		case 2: return (mdp5_cfg->lm.base[2]);
 		case 3: return (mdp5_cfg->lm.base[3]);
 		case 4: return (mdp5_cfg->lm.base[4]);
+		case 5: return (mdp5_cfg->lm.base[5]);
 		default: return INVALID_IDX(idx);
 	}
 }
diff --git a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_crtc.c b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_crtc.c
index 46fac54..2f2863c 100644
--- a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_crtc.c
+++ b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_crtc.c
@@ -62,8 +62,8 @@ struct mdp5_crtc {
 
 		/* current cursor being scanned out: */
 		struct drm_gem_object *scanout_bo;
-		uint32_t width;
-		uint32_t height;
+		uint32_t width, height;
+		uint32_t x, y;
 	} cursor;
 };
 #define to_mdp5_crtc(x) container_of(x, struct mdp5_crtc, base)
@@ -103,8 +103,8 @@ static void crtc_flush_all(struct drm_crtc *crtc)
 	struct drm_plane *plane;
 	uint32_t flush_mask = 0;
 
-	/* we could have already released CTL in the disable path: */
-	if (!mdp5_crtc->ctl)
+	/* this should not happen: */
+	if (WARN_ON(!mdp5_crtc->ctl))
 		return;
 
 	drm_atomic_crtc_for_each_plane(plane, crtc) {
@@ -143,6 +143,11 @@ static void complete_flip(struct drm_crtc *crtc, struct drm_file *file)
 	drm_atomic_crtc_for_each_plane(plane, crtc) {
 		mdp5_plane_complete_flip(plane);
 	}
+
+	if (mdp5_crtc->ctl && !crtc->state->enable) {
+		mdp5_ctl_release(mdp5_crtc->ctl);
+		mdp5_crtc->ctl = NULL;
+	}
 }
 
 static void unref_cursor_worker(struct drm_flip_work *work, void *val)
@@ -386,14 +391,17 @@ static void mdp5_crtc_atomic_flush(struct drm_crtc *crtc)
 	mdp5_crtc->event = crtc->state->event;
 	spin_unlock_irqrestore(&dev->event_lock, flags);
 
+	/*
+	 * If no CTL has been allocated in mdp5_crtc_atomic_check(),
+	 * it means we are trying to flush a CRTC whose state is disabled:
+	 * nothing else needs to be done.
+	 */
+	if (unlikely(!mdp5_crtc->ctl))
+		return;
+
 	blend_setup(crtc);
 	crtc_flush_all(crtc);
 	request_pending(crtc, PENDING_FLIP);
-
-	if (mdp5_crtc->ctl && !crtc->state->enable) {
-		mdp5_ctl_release(mdp5_crtc->ctl);
-		mdp5_crtc->ctl = NULL;
-	}
 }
 
 static int mdp5_crtc_set_property(struct drm_crtc *crtc,
@@ -403,6 +411,32 @@ static int mdp5_crtc_set_property(struct drm_crtc *crtc,
 	return -EINVAL;
 }
 
+static void get_roi(struct drm_crtc *crtc, uint32_t *roi_w, uint32_t *roi_h)
+{
+	struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
+	uint32_t xres = crtc->mode.hdisplay;
+	uint32_t yres = crtc->mode.vdisplay;
+
+	/*
+	 * Cursor Region Of Interest (ROI) is a plane read from cursor
+	 * buffer to render. The ROI region is determined by the visibility of
+	 * the cursor point. In the default Cursor image the cursor point will
+	 * be at the top left of the cursor image, unless it is specified
+	 * otherwise using hotspot feature.
+	 *
+	 * If the cursor point reaches the right (xres - x < cursor.width) or
+	 * bottom (yres - y < cursor.height) boundary of the screen, then ROI
+	 * width and ROI height need to be evaluated to crop the cursor image
+	 * accordingly.
+	 * (xres-x) will be new cursor width when x > (xres - cursor.width)
+	 * (yres-y) will be new cursor height when y > (yres - cursor.height)
+	 */
+	*roi_w = min(mdp5_crtc->cursor.width, xres -
+			mdp5_crtc->cursor.x);
+	*roi_h = min(mdp5_crtc->cursor.height, yres -
+			mdp5_crtc->cursor.y);
+}
+
 static int mdp5_crtc_cursor_set(struct drm_crtc *crtc,
 		struct drm_file *file, uint32_t handle,
 		uint32_t width, uint32_t height)
@@ -416,6 +450,7 @@ static int mdp5_crtc_cursor_set(struct drm_crtc *crtc,
 	unsigned int depth;
 	enum mdp5_cursor_alpha cur_alpha = CURSOR_ALPHA_PER_PIXEL;
 	uint32_t flush_mask = mdp_ctl_flush_mask_cursor(0);
+	uint32_t roi_w, roi_h;
 	unsigned long flags;
 
 	if ((width > CURSOR_WIDTH) || (height > CURSOR_HEIGHT)) {
@@ -446,6 +481,12 @@ static int mdp5_crtc_cursor_set(struct drm_crtc *crtc,
 	spin_lock_irqsave(&mdp5_crtc->cursor.lock, flags);
 	old_bo = mdp5_crtc->cursor.scanout_bo;
 
+	mdp5_crtc->cursor.scanout_bo = cursor_bo;
+	mdp5_crtc->cursor.width = width;
+	mdp5_crtc->cursor.height = height;
+
+	get_roi(crtc, &roi_w, &roi_h);
+
 	mdp5_write(mdp5_kms, REG_MDP5_LM_CURSOR_STRIDE(lm), stride);
 	mdp5_write(mdp5_kms, REG_MDP5_LM_CURSOR_FORMAT(lm),
 			MDP5_LM_CURSOR_FORMAT_FORMAT(CURSOR_FMT_ARGB8888));
@@ -453,19 +494,14 @@ static int mdp5_crtc_cursor_set(struct drm_crtc *crtc,
 			MDP5_LM_CURSOR_IMG_SIZE_SRC_H(height) |
 			MDP5_LM_CURSOR_IMG_SIZE_SRC_W(width));
 	mdp5_write(mdp5_kms, REG_MDP5_LM_CURSOR_SIZE(lm),
-			MDP5_LM_CURSOR_SIZE_ROI_H(height) |
-			MDP5_LM_CURSOR_SIZE_ROI_W(width));
+			MDP5_LM_CURSOR_SIZE_ROI_H(roi_h) |
+			MDP5_LM_CURSOR_SIZE_ROI_W(roi_w));
 	mdp5_write(mdp5_kms, REG_MDP5_LM_CURSOR_BASE_ADDR(lm), cursor_addr);
 
-
 	blendcfg = MDP5_LM_CURSOR_BLEND_CONFIG_BLEND_EN;
-	blendcfg |= MDP5_LM_CURSOR_BLEND_CONFIG_BLEND_TRANSP_EN;
 	blendcfg |= MDP5_LM_CURSOR_BLEND_CONFIG_BLEND_ALPHA_SEL(cur_alpha);
 	mdp5_write(mdp5_kms, REG_MDP5_LM_CURSOR_BLEND_CONFIG(lm), blendcfg);
 
-	mdp5_crtc->cursor.scanout_bo = cursor_bo;
-	mdp5_crtc->cursor.width = width;
-	mdp5_crtc->cursor.height = height;
 	spin_unlock_irqrestore(&mdp5_crtc->cursor.lock, flags);
 
 	ret = mdp5_ctl_set_cursor(mdp5_crtc->ctl, true);
@@ -489,31 +525,18 @@ static int mdp5_crtc_cursor_move(struct drm_crtc *crtc, int x, int y)
 	struct mdp5_kms *mdp5_kms = get_kms(crtc);
 	struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
 	uint32_t flush_mask = mdp_ctl_flush_mask_cursor(0);
-	uint32_t xres = crtc->mode.hdisplay;
-	uint32_t yres = crtc->mode.vdisplay;
 	uint32_t roi_w;
 	uint32_t roi_h;
 	unsigned long flags;
 
-	x = (x > 0) ? x : 0;
-	y = (y > 0) ? y : 0;
+	/* In case the CRTC is disabled, just drop the cursor update */
+	if (unlikely(!crtc->state->enable))
+		return 0;
 
-	/*
-	 * Cursor Region Of Interest (ROI) is a plane read from cursor
-	 * buffer to render. The ROI region is determined by the visiblity of
-	 * the cursor point. In the default Cursor image the cursor point will
-	 * be at the top left of the cursor image, unless it is specified
-	 * otherwise using hotspot feature.
-	 *
-	 * If the cursor point reaches the right (xres - x < cursor.width) or
-	 * bottom (yres - y < cursor.height) boundary of the screen, then ROI
-	 * width and ROI height need to be evaluated to crop the cursor image
-	 * accordingly.
-	 * (xres-x) will be new cursor width when x > (xres - cursor.width)
-	 * (yres-y) will be new cursor height when y > (yres - cursor.height)
-	 */
-	roi_w = min(mdp5_crtc->cursor.width, xres - x);
-	roi_h = min(mdp5_crtc->cursor.height, yres - y);
+	mdp5_crtc->cursor.x = x = max(x, 0);
+	mdp5_crtc->cursor.y = y = max(y, 0);
+
+	get_roi(crtc, &roi_w, &roi_h);
 
 	spin_lock_irqsave(&mdp5_crtc->cursor.lock, flags);
 	mdp5_write(mdp5_kms, REG_MDP5_LM_CURSOR_SIZE(mdp5_crtc->lm),
@@ -544,8 +567,8 @@ static const struct drm_crtc_funcs mdp5_crtc_funcs = {
 static const struct drm_crtc_helper_funcs mdp5_crtc_helper_funcs = {
 	.mode_fixup = mdp5_crtc_mode_fixup,
 	.mode_set_nofb = mdp5_crtc_mode_set_nofb,
-	.prepare = mdp5_crtc_disable,
-	.commit = mdp5_crtc_enable,
+	.disable = mdp5_crtc_disable,
+	.enable = mdp5_crtc_enable,
 	.atomic_check = mdp5_crtc_atomic_check,
 	.atomic_begin = mdp5_crtc_atomic_begin,
 	.atomic_flush = mdp5_crtc_atomic_flush,
diff --git a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_encoder.c b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_encoder.c
index d6a14bb..af0e02f 100644
--- a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_encoder.c
+++ b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_encoder.c
@@ -267,14 +267,14 @@ static void mdp5_encoder_enable(struct drm_encoder *encoder)
 	mdp5_write(mdp5_kms, REG_MDP5_INTF_TIMING_ENGINE_EN(intf), 1);
 	spin_unlock_irqrestore(&mdp5_encoder->intf_lock, flags);
 
-	mdp5_encoder->enabled = false;
+	mdp5_encoder->enabled = true;
 }
 
 static const struct drm_encoder_helper_funcs mdp5_encoder_helper_funcs = {
 	.mode_fixup = mdp5_encoder_mode_fixup,
 	.mode_set = mdp5_encoder_mode_set,
-	.prepare = mdp5_encoder_disable,
-	.commit = mdp5_encoder_enable,
+	.disable = mdp5_encoder_disable,
+	.enable = mdp5_encoder_enable,
 };
 
 /* initialize encoder */
diff --git a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_irq.c b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_irq.c
index 70ac81e..a940710 100644
--- a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_irq.c
+++ b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_irq.c
@@ -34,7 +34,10 @@ static void mdp5_irq_error_handler(struct mdp_irq *irq, uint32_t irqstatus)
 void mdp5_irq_preinstall(struct msm_kms *kms)
 {
 	struct mdp5_kms *mdp5_kms = to_mdp5_kms(to_mdp_kms(kms));
+	mdp5_enable(mdp5_kms);
 	mdp5_write(mdp5_kms, REG_MDP5_INTR_CLEAR, 0xffffffff);
+	mdp5_write(mdp5_kms, REG_MDP5_INTR_EN, 0x00000000);
+	mdp5_disable(mdp5_kms);
 }
 
 int mdp5_irq_postinstall(struct msm_kms *kms)
@@ -57,7 +60,9 @@ int mdp5_irq_postinstall(struct msm_kms *kms)
 void mdp5_irq_uninstall(struct msm_kms *kms)
 {
 	struct mdp5_kms *mdp5_kms = to_mdp5_kms(to_mdp_kms(kms));
+	mdp5_enable(mdp5_kms);
 	mdp5_write(mdp5_kms, REG_MDP5_INTR_EN, 0x00000000);
+	mdp5_disable(mdp5_kms);
 }
 
 static void mdp5_irq_mdp(struct mdp_kms *mdp_kms)
diff --git a/drivers/gpu/drm/msm/msm_atomic.c b/drivers/gpu/drm/msm/msm_atomic.c
index 871aa21..18fd643 100644
--- a/drivers/gpu/drm/msm/msm_atomic.c
+++ b/drivers/gpu/drm/msm/msm_atomic.c
@@ -219,8 +219,10 @@ int msm_atomic_commit(struct drm_device *dev,
 	 * mark our set of crtc's as busy:
 	 */
 	ret = start_atomic(dev->dev_private, c->crtc_mask);
-	if (ret)
+	if (ret) {
+		kfree(c);
 		return ret;
+	}
 
 	/*
 	 * This is the point of no return - everything below never fails except
diff --git a/drivers/gpu/drm/nouveau/nouveau_fbcon.c b/drivers/gpu/drm/nouveau/nouveau_fbcon.c
index 79924e4..6751553 100644
--- a/drivers/gpu/drm/nouveau/nouveau_fbcon.c
+++ b/drivers/gpu/drm/nouveau/nouveau_fbcon.c
@@ -418,7 +418,7 @@ nouveau_fbcon_create(struct drm_fb_helper *helper,
 	nouveau_fbcon_zfill(dev, fbcon);
 
 	/* To allow resizeing without swapping buffers */
-	NV_INFO(drm, "allocated %dx%d fb: 0x%lx, bo %p\n",
+	NV_INFO(drm, "allocated %dx%d fb: 0x%llx, bo %p\n",
 		nouveau_fb->base.width, nouveau_fb->base.height,
 		nvbo->bo.offset, nvbo);
 
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/device/base.c b/drivers/gpu/drm/nouveau/nvkm/engine/device/base.c
index 29bd539..6efa8f3 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/device/base.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/device/base.c
@@ -340,11 +340,13 @@ nvkm_devobj_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
 
 		/* switch mmio to cpu's native endianness */
 #ifndef __BIG_ENDIAN
-		if (ioread32_native(map + 0x000004) != 0x00000000)
+		if (ioread32_native(map + 0x000004) != 0x00000000) {
 #else
-		if (ioread32_native(map + 0x000004) == 0x00000000)
+		if (ioread32_native(map + 0x000004) == 0x00000000) {
 #endif
 			iowrite32_native(0x01000001, map + 0x000004);
+			ioread32_native(map);
+		}
 
 		/* read boot0 and strapping information */
 		boot0 = ioread32_native(map + 0x000000);
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/device/gm100.c b/drivers/gpu/drm/nouveau/nvkm/engine/device/gm100.c
index 539561e..108d048 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/device/gm100.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/device/gm100.c
@@ -142,6 +142,49 @@ gm100_identify(struct nvkm_device *device)
 		device->oclass[NVDEV_ENGINE_MSPPP  ] = &gf100_msppp_oclass;
 #endif
 		break;
+	case 0x126:
+		device->cname = "GM206";
+		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nvkm_bios_oclass;
+		device->oclass[NVDEV_SUBDEV_GPIO   ] =  gk104_gpio_oclass;
+		device->oclass[NVDEV_SUBDEV_I2C    ] =  gm204_i2c_oclass;
+		device->oclass[NVDEV_SUBDEV_FUSE   ] = &gm107_fuse_oclass;
+#if 0
+		/* looks to be some non-trivial changes */
+		device->oclass[NVDEV_SUBDEV_CLK    ] = &gk104_clk_oclass;
+		/* priv ring says no to 0x10eb14 writes */
+		device->oclass[NVDEV_SUBDEV_THERM  ] = &gm107_therm_oclass;
+#endif
+		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
+		device->oclass[NVDEV_SUBDEV_DEVINIT] =  gm204_devinit_oclass;
+		device->oclass[NVDEV_SUBDEV_MC     ] =  gk20a_mc_oclass;
+		device->oclass[NVDEV_SUBDEV_BUS    ] =  gf100_bus_oclass;
+		device->oclass[NVDEV_SUBDEV_TIMER  ] = &gk20a_timer_oclass;
+		device->oclass[NVDEV_SUBDEV_FB     ] =  gm107_fb_oclass;
+		device->oclass[NVDEV_SUBDEV_LTC    ] =  gm107_ltc_oclass;
+		device->oclass[NVDEV_SUBDEV_IBUS   ] = &gk104_ibus_oclass;
+		device->oclass[NVDEV_SUBDEV_INSTMEM] =  nv50_instmem_oclass;
+		device->oclass[NVDEV_SUBDEV_MMU    ] = &gf100_mmu_oclass;
+		device->oclass[NVDEV_SUBDEV_BAR    ] = &gf100_bar_oclass;
+		device->oclass[NVDEV_SUBDEV_PMU    ] =  gk208_pmu_oclass;
+#if 0
+		device->oclass[NVDEV_SUBDEV_VOLT   ] = &nv40_volt_oclass;
+#endif
+		device->oclass[NVDEV_ENGINE_DMAOBJ ] =  gf110_dmaeng_oclass;
+#if 0
+		device->oclass[NVDEV_ENGINE_FIFO   ] =  gk208_fifo_oclass;
+		device->oclass[NVDEV_ENGINE_SW     ] =  gf100_sw_oclass;
+		device->oclass[NVDEV_ENGINE_GR     ] =  gm107_gr_oclass;
+#endif
+		device->oclass[NVDEV_ENGINE_DISP   ] =  gm204_disp_oclass;
+#if 0
+		device->oclass[NVDEV_ENGINE_CE0    ] = &gm204_ce0_oclass;
+		device->oclass[NVDEV_ENGINE_CE1    ] = &gm204_ce1_oclass;
+		device->oclass[NVDEV_ENGINE_CE2    ] = &gm204_ce2_oclass;
+		device->oclass[NVDEV_ENGINE_MSVLD  ] = &gk104_msvld_oclass;
+		device->oclass[NVDEV_ENGINE_MSPDEC ] = &gk104_mspdec_oclass;
+		device->oclass[NVDEV_ENGINE_MSPPP  ] = &gf100_msppp_oclass;
+#endif
+		break;
 	default:
 		nv_fatal(device, "unknown Maxwell chipset\n");
 		return -EINVAL;
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/nv04.c b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/nv04.c
index b038b6e..043e429 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/nv04.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/nv04.c
@@ -502,72 +502,57 @@ nv04_fifo_intr(struct nvkm_subdev *subdev)
 {
 	struct nvkm_device *device = nv_device(subdev);
 	struct nv04_fifo_priv *priv = (void *)subdev;
-	uint32_t status, reassign;
-	int cnt = 0;
+	u32 mask = nv_rd32(priv, NV03_PFIFO_INTR_EN_0);
+	u32 stat = nv_rd32(priv, NV03_PFIFO_INTR_0) & mask;
+	u32 reassign, chid, get, sem;
 
 	reassign = nv_rd32(priv, NV03_PFIFO_CACHES) & 1;
-	while ((status = nv_rd32(priv, NV03_PFIFO_INTR_0)) && (cnt++ < 100)) {
-		uint32_t chid, get;
-
-		nv_wr32(priv, NV03_PFIFO_CACHES, 0);
-
-		chid = nv_rd32(priv, NV03_PFIFO_CACHE1_PUSH1) & priv->base.max;
-		get  = nv_rd32(priv, NV03_PFIFO_CACHE1_GET);
+	nv_wr32(priv, NV03_PFIFO_CACHES, 0);
 
-		if (status & NV_PFIFO_INTR_CACHE_ERROR) {
-			nv04_fifo_cache_error(device, priv, chid, get);
-			status &= ~NV_PFIFO_INTR_CACHE_ERROR;
-		}
+	chid = nv_rd32(priv, NV03_PFIFO_CACHE1_PUSH1) & priv->base.max;
+	get  = nv_rd32(priv, NV03_PFIFO_CACHE1_GET);
 
-		if (status & NV_PFIFO_INTR_DMA_PUSHER) {
-			nv04_fifo_dma_pusher(device, priv, chid);
-			status &= ~NV_PFIFO_INTR_DMA_PUSHER;
-		}
+	if (stat & NV_PFIFO_INTR_CACHE_ERROR) {
+		nv04_fifo_cache_error(device, priv, chid, get);
+		stat &= ~NV_PFIFO_INTR_CACHE_ERROR;
+	}
 
-		if (status & NV_PFIFO_INTR_SEMAPHORE) {
-			uint32_t sem;
+	if (stat & NV_PFIFO_INTR_DMA_PUSHER) {
+		nv04_fifo_dma_pusher(device, priv, chid);
+		stat &= ~NV_PFIFO_INTR_DMA_PUSHER;
+	}
 
-			status &= ~NV_PFIFO_INTR_SEMAPHORE;
-			nv_wr32(priv, NV03_PFIFO_INTR_0,
-				NV_PFIFO_INTR_SEMAPHORE);
+	if (stat & NV_PFIFO_INTR_SEMAPHORE) {
+		stat &= ~NV_PFIFO_INTR_SEMAPHORE;
+		nv_wr32(priv, NV03_PFIFO_INTR_0, NV_PFIFO_INTR_SEMAPHORE);
 
-			sem = nv_rd32(priv, NV10_PFIFO_CACHE1_SEMAPHORE);
-			nv_wr32(priv, NV10_PFIFO_CACHE1_SEMAPHORE, sem | 0x1);
+		sem = nv_rd32(priv, NV10_PFIFO_CACHE1_SEMAPHORE);
+		nv_wr32(priv, NV10_PFIFO_CACHE1_SEMAPHORE, sem | 0x1);
 
-			nv_wr32(priv, NV03_PFIFO_CACHE1_GET, get + 4);
-			nv_wr32(priv, NV04_PFIFO_CACHE1_PULL0, 1);
-		}
+		nv_wr32(priv, NV03_PFIFO_CACHE1_GET, get + 4);
+		nv_wr32(priv, NV04_PFIFO_CACHE1_PULL0, 1);
+	}
 
-		if (device->card_type == NV_50) {
-			if (status & 0x00000010) {
-				status &= ~0x00000010;
-				nv_wr32(priv, 0x002100, 0x00000010);
-			}
-
-			if (status & 0x40000000) {
-				nv_wr32(priv, 0x002100, 0x40000000);
-				nvkm_fifo_uevent(&priv->base);
-				status &= ~0x40000000;
-			}
+	if (device->card_type == NV_50) {
+		if (stat & 0x00000010) {
+			stat &= ~0x00000010;
+			nv_wr32(priv, 0x002100, 0x00000010);
 		}
 
-		if (status) {
-			nv_warn(priv, "unknown intr 0x%08x, ch %d\n",
-				status, chid);
-			nv_wr32(priv, NV03_PFIFO_INTR_0, status);
-			status = 0;
+		if (stat & 0x40000000) {
+			nv_wr32(priv, 0x002100, 0x40000000);
+			nvkm_fifo_uevent(&priv->base);
+			stat &= ~0x40000000;
 		}
-
-		nv_wr32(priv, NV03_PFIFO_CACHES, reassign);
 	}
 
-	if (status) {
-		nv_error(priv, "still angry after %d spins, halt\n", cnt);
-		nv_wr32(priv, 0x002140, 0);
-		nv_wr32(priv, 0x000140, 0);
+	if (stat) {
+		nv_warn(priv, "unknown intr 0x%08x\n", stat);
+		nv_mask(priv, NV03_PFIFO_INTR_EN_0, stat, 0x00000000);
+		nv_wr32(priv, NV03_PFIFO_INTR_0, stat);
 	}
 
-	nv_wr32(priv, 0x000100, 0x00000100);
+	nv_wr32(priv, NV03_PFIFO_CACHES, reassign);
 }
 
 static int
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgf100.c b/drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgf100.c
index 2e7ec38..57e2c5b 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgf100.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgf100.c
@@ -1032,9 +1032,9 @@ gf100_grctx_generate_bundle(struct gf100_grctx *info)
 	const int s = 8;
 	const int b = mmio_vram(info, impl->bundle_size, (1 << s), access);
 	mmio_refn(info, 0x408004, 0x00000000, s, b);
-	mmio_refn(info, 0x408008, 0x80000000 | (impl->bundle_size >> s), 0, b);
+	mmio_wr32(info, 0x408008, 0x80000000 | (impl->bundle_size >> s));
 	mmio_refn(info, 0x418808, 0x00000000, s, b);
-	mmio_refn(info, 0x41880c, 0x80000000 | (impl->bundle_size >> s), 0, b);
+	mmio_wr32(info, 0x41880c, 0x80000000 | (impl->bundle_size >> s));
 }
 
 void
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgk104.c b/drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgk104.c
index b52300d..5e9454b 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgk104.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgk104.c
@@ -851,9 +851,9 @@ gk104_grctx_generate_bundle(struct gf100_grctx *info)
 	const int s = 8;
 	const int b = mmio_vram(info, impl->bundle_size, (1 << s), access);
 	mmio_refn(info, 0x408004, 0x00000000, s, b);
-	mmio_refn(info, 0x408008, 0x80000000 | (impl->bundle_size >> s), 0, b);
+	mmio_wr32(info, 0x408008, 0x80000000 | (impl->bundle_size >> s));
 	mmio_refn(info, 0x418808, 0x00000000, s, b);
-	mmio_refn(info, 0x41880c, 0x80000000 | (impl->bundle_size >> s), 0, b);
+	mmio_wr32(info, 0x41880c, 0x80000000 | (impl->bundle_size >> s));
 	mmio_wr32(info, 0x4064c8, (state_limit << 16) | token_limit);
 }
 
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgm107.c b/drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgm107.c
index 956f4dc..b2fae6e 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgm107.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgm107.c
@@ -871,9 +871,9 @@ gm107_grctx_generate_bundle(struct gf100_grctx *info)
 	const int s = 8;
 	const int b = mmio_vram(info, impl->bundle_size, (1 << s), access);
 	mmio_refn(info, 0x408004, 0x00000000, s, b);
-	mmio_refn(info, 0x408008, 0x80000000 | (impl->bundle_size >> s), 0, b);
+	mmio_wr32(info, 0x408008, 0x80000000 | (impl->bundle_size >> s));
 	mmio_refn(info, 0x418e24, 0x00000000, s, b);
-	mmio_refn(info, 0x418e28, 0x80000000 | (impl->bundle_size >> s), 0, b);
+	mmio_wr32(info, 0x418e28, 0x80000000 | (impl->bundle_size >> s));
 	mmio_wr32(info, 0x4064c8, (state_limit << 16) | token_limit);
 }
 
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/bios/i2c.c b/drivers/gpu/drm/nouveau/nvkm/subdev/bios/i2c.c
index d1a89b2..c4e1f08 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/bios/i2c.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/bios/i2c.c
@@ -74,7 +74,11 @@ dcb_i2c_parse(struct nvkm_bios *bios, u8 idx, struct dcb_i2c_entry *info)
 	u16 ent = dcb_i2c_entry(bios, idx, &ver, &len);
 	if (ent) {
 		if (ver >= 0x41) {
-			if (!(nv_ro32(bios, ent) & 0x80000000))
+			u32 ent_value = nv_ro32(bios, ent);
+			u8 i2c_port = (ent_value >> 27) & 0x1f;
+			u8 dpaux_port = (ent_value >> 22) & 0x1f;
+			/* value 0x1f means unused according to DCB 4.x spec */
+			if (i2c_port == 0x1f && dpaux_port == 0x1f)
 				info->type = DCB_I2C_UNUSED;
 			else
 				info->type = DCB_I2C_PMGR;
diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c b/drivers/gpu/drm/radeon/atombios_crtc.c
index ed644a4..86807ee 100644
--- a/drivers/gpu/drm/radeon/atombios_crtc.c
+++ b/drivers/gpu/drm/radeon/atombios_crtc.c
@@ -1405,6 +1405,9 @@ static int dce4_crtc_do_set_base(struct drm_crtc *crtc,
 	       (x << 16) | y);
 	viewport_w = crtc->mode.hdisplay;
 	viewport_h = (crtc->mode.vdisplay + 1) & ~1;
+	if ((rdev->family >= CHIP_BONAIRE) &&
+	    (crtc->mode.flags & DRM_MODE_FLAG_INTERLACE))
+		viewport_h *= 2;
 	WREG32(EVERGREEN_VIEWPORT_SIZE + radeon_crtc->crtc_offset,
 	       (viewport_w << 16) | viewport_h);
 
diff --git a/drivers/gpu/drm/radeon/atombios_dp.c b/drivers/gpu/drm/radeon/atombios_dp.c
index 5bf825d..8d74de8 100644
--- a/drivers/gpu/drm/radeon/atombios_dp.c
+++ b/drivers/gpu/drm/radeon/atombios_dp.c
@@ -178,6 +178,13 @@ radeon_dp_aux_transfer(struct drm_dp_aux *aux, struct drm_dp_aux_msg *msg)
 	switch (msg->request & ~DP_AUX_I2C_MOT) {
 	case DP_AUX_NATIVE_WRITE:
 	case DP_AUX_I2C_WRITE:
+		/* The atom implementation only supports writes with a max payload of
+		 * 12 bytes since it uses 4 bits for the total count (header + payload)
+		 * in the parameter space.  The atom interface supports 16 byte
+		 * payloads for reads. The hw itself supports up to 16 bytes of payload.
+		 */
+		if (WARN_ON_ONCE(msg->size > 12))
+			return -E2BIG;
 		/* tx_size needs to be 4 even for bare address packets since the atom
 		 * table needs the info in tx_buf[3].
 		 */
diff --git a/drivers/gpu/drm/radeon/atombios_encoders.c b/drivers/gpu/drm/radeon/atombios_encoders.c
index 7c9df1e..c39c1d0 100644
--- a/drivers/gpu/drm/radeon/atombios_encoders.c
+++ b/drivers/gpu/drm/radeon/atombios_encoders.c
@@ -731,7 +731,9 @@ atombios_get_encoder_mode(struct drm_encoder *encoder)
 		dig_connector = radeon_connector->con_priv;
 		if ((dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT) ||
 		    (dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_eDP)) {
-			if (radeon_audio != 0 && ASIC_IS_DCE4(rdev) && !ASIC_IS_DCE5(rdev))
+			if (radeon_audio != 0 &&
+			    drm_detect_monitor_audio(radeon_connector_edid(connector)) &&
+			    ASIC_IS_DCE4(rdev) && !ASIC_IS_DCE5(rdev))
 				return ATOM_ENCODER_MODE_DP_AUDIO;
 			return ATOM_ENCODER_MODE_DP;
 		} else if (radeon_audio != 0) {
@@ -747,7 +749,9 @@ atombios_get_encoder_mode(struct drm_encoder *encoder)
 		}
 		break;
 	case DRM_MODE_CONNECTOR_eDP:
-		if (radeon_audio != 0 && ASIC_IS_DCE4(rdev) && !ASIC_IS_DCE5(rdev))
+		if (radeon_audio != 0 &&
+		    drm_detect_monitor_audio(radeon_connector_edid(connector)) &&
+		    ASIC_IS_DCE4(rdev) && !ASIC_IS_DCE5(rdev))
 			return ATOM_ENCODER_MODE_DP_AUDIO;
 		return ATOM_ENCODER_MODE_DP;
 	case DRM_MODE_CONNECTOR_DVIA:
@@ -1622,7 +1626,6 @@ radeon_atom_encoder_dpms_dig(struct drm_encoder *encoder, int mode)
 	struct radeon_connector *radeon_connector = NULL;
 	struct radeon_connector_atom_dig *radeon_dig_connector = NULL;
 	bool travis_quirk = false;
-	int encoder_mode;
 
 	if (connector) {
 		radeon_connector = to_radeon_connector(connector);
@@ -1718,11 +1721,6 @@ radeon_atom_encoder_dpms_dig(struct drm_encoder *encoder, int mode)
 		}
 		break;
 	}
-
-	encoder_mode = atombios_get_encoder_mode(encoder);
-	if (radeon_audio != 0 &&
-		(encoder_mode == ATOM_ENCODER_MODE_HDMI || ENCODER_MODE_IS_DP(encoder_mode)))
-		radeon_audio_dpms(encoder, mode);
 }
 
 static void
@@ -1731,10 +1729,19 @@ radeon_atom_encoder_dpms(struct drm_encoder *encoder, int mode)
 	struct drm_device *dev = encoder->dev;
 	struct radeon_device *rdev = dev->dev_private;
 	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
+	struct drm_connector *connector = radeon_get_connector_for_encoder(encoder);
+	int encoder_mode = atombios_get_encoder_mode(encoder);
 
 	DRM_DEBUG_KMS("encoder dpms %d to mode %d, devices %08x, active_devices %08x\n",
 		  radeon_encoder->encoder_id, mode, radeon_encoder->devices,
 		  radeon_encoder->active_device);
+
+	if (connector && (radeon_audio != 0) &&
+	    ((encoder_mode == ATOM_ENCODER_MODE_HDMI) ||
+	     (ENCODER_MODE_IS_DP(encoder_mode) &&
+	      drm_detect_monitor_audio(radeon_connector_edid(connector)))))
+		radeon_audio_dpms(encoder, mode);
+
 	switch (radeon_encoder->encoder_id) {
 	case ENCODER_OBJECT_ID_INTERNAL_TMDS1:
 	case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_TMDS1:
@@ -2136,6 +2143,7 @@ radeon_atom_encoder_mode_set(struct drm_encoder *encoder,
 	struct drm_device *dev = encoder->dev;
 	struct radeon_device *rdev = dev->dev_private;
 	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
+	struct drm_connector *connector = radeon_get_connector_for_encoder(encoder);
 	int encoder_mode;
 
 	radeon_encoder->pixel_clock = adjusted_mode->clock;
@@ -2163,10 +2171,6 @@ radeon_atom_encoder_mode_set(struct drm_encoder *encoder,
 	case ENCODER_OBJECT_ID_INTERNAL_UNIPHY3:
 	case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_LVTMA:
 		/* handled in dpms */
-		encoder_mode = atombios_get_encoder_mode(encoder);
-		if (radeon_audio != 0 &&
-			(encoder_mode == ATOM_ENCODER_MODE_HDMI || ENCODER_MODE_IS_DP(encoder_mode)))
-			radeon_audio_mode_set(encoder, adjusted_mode);
 		break;
 	case ENCODER_OBJECT_ID_INTERNAL_DDI:
 	case ENCODER_OBJECT_ID_INTERNAL_DVO1:
@@ -2188,6 +2192,13 @@ radeon_atom_encoder_mode_set(struct drm_encoder *encoder,
 	}
 
 	atombios_apply_encoder_quirks(encoder, adjusted_mode);
+
+	encoder_mode = atombios_get_encoder_mode(encoder);
+	if (connector && (radeon_audio != 0) &&
+	    ((encoder_mode == ATOM_ENCODER_MODE_HDMI) ||
+	     (ENCODER_MODE_IS_DP(encoder_mode) &&
+	      drm_detect_monitor_audio(radeon_connector_edid(connector)))))
+		radeon_audio_mode_set(encoder, adjusted_mode);
 }
 
 static bool
diff --git a/drivers/gpu/drm/radeon/cik.c b/drivers/gpu/drm/radeon/cik.c
index e6a4ba2..3e670d3 100644
--- a/drivers/gpu/drm/radeon/cik.c
+++ b/drivers/gpu/drm/radeon/cik.c
@@ -3613,6 +3613,8 @@ static void cik_gpu_init(struct radeon_device *rdev)
 	}
 
 	WREG32(GRBM_CNTL, GRBM_READ_TIMEOUT(0xff));
+	WREG32(SRBM_INT_CNTL, 0x1);
+	WREG32(SRBM_INT_ACK, 0x1);
 
 	WREG32(BIF_FB_EN, FB_READ_EN | FB_WRITE_EN);
 
@@ -7230,6 +7232,8 @@ static void cik_disable_interrupt_state(struct radeon_device *rdev)
 	WREG32(CP_ME2_PIPE3_INT_CNTL, 0);
 	/* grbm */
 	WREG32(GRBM_INT_CNTL, 0);
+	/* SRBM */
+	WREG32(SRBM_INT_CNTL, 0);
 	/* vline/vblank, etc. */
 	WREG32(LB_INTERRUPT_MASK + EVERGREEN_CRTC0_REGISTER_OFFSET, 0);
 	WREG32(LB_INTERRUPT_MASK + EVERGREEN_CRTC1_REGISTER_OFFSET, 0);
@@ -7551,6 +7555,9 @@ int cik_irq_set(struct radeon_device *rdev)
 	WREG32(DC_HPD5_INT_CONTROL, hpd5);
 	WREG32(DC_HPD6_INT_CONTROL, hpd6);
 
+	/* posting read */
+	RREG32(SRBM_STATUS);
+
 	return 0;
 }
 
@@ -8046,6 +8053,10 @@ restart_ih:
 				break;
 			}
 			break;
+		case 96:
+			DRM_ERROR("SRBM_READ_ERROR: 0x%x\n", RREG32(SRBM_READ_ERROR));
+			WREG32(SRBM_INT_ACK, 0x1);
+			break;
 		case 124: /* UVD */
 			DRM_DEBUG("IH: UVD int: 0x%08x\n", src_data);
 			radeon_fence_process(rdev, R600_RING_TYPE_UVD_INDEX);
diff --git a/drivers/gpu/drm/radeon/cikd.h b/drivers/gpu/drm/radeon/cikd.h
index 03003f8..243a36c 100644
--- a/drivers/gpu/drm/radeon/cikd.h
+++ b/drivers/gpu/drm/radeon/cikd.h
@@ -482,6 +482,10 @@
 #define		SOFT_RESET_ORB				(1 << 23)
 #define		SOFT_RESET_VCE				(1 << 24)
 
+#define SRBM_READ_ERROR					0xE98
+#define SRBM_INT_CNTL					0xEA0
+#define SRBM_INT_ACK					0xEA8
+
 #define VM_L2_CNTL					0x1400
 #define		ENABLE_L2_CACHE					(1 << 0)
 #define		ENABLE_L2_FRAGMENT_PROCESSING			(1 << 1)
@@ -2125,6 +2129,7 @@
 #define VCE_UENC_REG_CLOCK_GATING	0x207c0
 #define VCE_SYS_INT_EN			0x21300
 #	define VCE_SYS_INT_TRAP_INTERRUPT_EN	(1 << 3)
+#define VCE_LMI_VCPU_CACHE_40BIT_BAR	0x2145c
 #define VCE_LMI_CTRL2			0x21474
 #define VCE_LMI_CTRL			0x21498
 #define VCE_LMI_VM_CTRL			0x214a0
diff --git a/drivers/gpu/drm/radeon/dce6_afmt.c b/drivers/gpu/drm/radeon/dce6_afmt.c
index 192c803..3adc2af 100644
--- a/drivers/gpu/drm/radeon/dce6_afmt.c
+++ b/drivers/gpu/drm/radeon/dce6_afmt.c
@@ -26,6 +26,9 @@
 #include "radeon_audio.h"
 #include "sid.h"
 
+#define DCE8_DCCG_AUDIO_DTO1_PHASE	0x05b8
+#define DCE8_DCCG_AUDIO_DTO1_MODULE	0x05bc
+
 u32 dce6_endpoint_rreg(struct radeon_device *rdev,
 			      u32 block_offset, u32 reg)
 {
@@ -252,72 +255,67 @@ void dce6_audio_enable(struct radeon_device *rdev,
 void dce6_hdmi_audio_set_dto(struct radeon_device *rdev,
 	struct radeon_crtc *crtc, unsigned int clock)
 {
-    /* Two dtos; generally use dto0 for HDMI */
+	/* Two dtos; generally use dto0 for HDMI */
 	u32 value = 0;
 
-    if (crtc)
+	if (crtc)
 		value |= DCCG_AUDIO_DTO0_SOURCE_SEL(crtc->crtc_id);
 
 	WREG32(DCCG_AUDIO_DTO_SOURCE, value);
 
-    /* Express [24MHz / target pixel clock] as an exact rational
-     * number (coefficient of two integer numbers.  DCCG_AUDIO_DTOx_PHASE
-     * is the numerator, DCCG_AUDIO_DTOx_MODULE is the denominator
-     */
-    WREG32(DCCG_AUDIO_DTO0_PHASE, 24000);
-    WREG32(DCCG_AUDIO_DTO0_MODULE, clock);
+	/* Express [24MHz / target pixel clock] as an exact rational
+	 * number (coefficient of two integer numbers.  DCCG_AUDIO_DTOx_PHASE
+	 * is the numerator, DCCG_AUDIO_DTOx_MODULE is the denominator
+	 */
+	WREG32(DCCG_AUDIO_DTO0_PHASE, 24000);
+	WREG32(DCCG_AUDIO_DTO0_MODULE, clock);
 }
 
 void dce6_dp_audio_set_dto(struct radeon_device *rdev,
 	struct radeon_crtc *crtc, unsigned int clock)
 {
-    /* Two dtos; generally use dto1 for DP */
+	/* Two dtos; generally use dto1 for DP */
 	u32 value = 0;
 	value |= DCCG_AUDIO_DTO_SEL;
 
-    if (crtc)
+	if (crtc)
 		value |= DCCG_AUDIO_DTO0_SOURCE_SEL(crtc->crtc_id);
 
 	WREG32(DCCG_AUDIO_DTO_SOURCE, value);
 
-    /* Express [24MHz / target pixel clock] as an exact rational
-     * number (coefficient of two integer numbers.  DCCG_AUDIO_DTOx_PHASE
-     * is the numerator, DCCG_AUDIO_DTOx_MODULE is the denominator
-     */
-    WREG32(DCCG_AUDIO_DTO1_PHASE, 24000);
-    WREG32(DCCG_AUDIO_DTO1_MODULE, clock);
+	/* Express [24MHz / target pixel clock] as an exact rational
+	 * number (coefficient of two integer numbers.  DCCG_AUDIO_DTOx_PHASE
+	 * is the numerator, DCCG_AUDIO_DTOx_MODULE is the denominator
+	 */
+	if (ASIC_IS_DCE8(rdev)) {
+		WREG32(DCE8_DCCG_AUDIO_DTO1_PHASE, 24000);
+		WREG32(DCE8_DCCG_AUDIO_DTO1_MODULE, clock);
+	} else {
+		WREG32(DCCG_AUDIO_DTO1_PHASE, 24000);
+		WREG32(DCCG_AUDIO_DTO1_MODULE, clock);
+	}
 }
 
-void dce6_enable_dp_audio_packets(struct drm_encoder *encoder, bool enable)
+void dce6_dp_enable(struct drm_encoder *encoder, bool enable)
 {
 	struct drm_device *dev = encoder->dev;
 	struct radeon_device *rdev = dev->dev_private;
 	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 	struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
-	uint32_t offset;
 
 	if (!dig || !dig->afmt)
 		return;
 
-	offset = dig->afmt->offset;
-
 	if (enable) {
-        if (dig->afmt->enabled)
-            return;
-
-		WREG32(EVERGREEN_DP_SEC_TIMESTAMP + offset, EVERGREEN_DP_SEC_TIMESTAMP_MODE(1));
-		WREG32(EVERGREEN_DP_SEC_CNTL + offset,
-			EVERGREEN_DP_SEC_ASP_ENABLE |		/* Audio packet transmission */
-			EVERGREEN_DP_SEC_ATP_ENABLE |		/* Audio timestamp packet transmission */
-			EVERGREEN_DP_SEC_AIP_ENABLE |		/* Audio infoframe packet transmission */
-			EVERGREEN_DP_SEC_STREAM_ENABLE);	/* Master enable for secondary stream engine */
-		radeon_audio_enable(rdev, dig->afmt->pin, true);
+		WREG32(EVERGREEN_DP_SEC_TIMESTAMP + dig->afmt->offset,
+		       EVERGREEN_DP_SEC_TIMESTAMP_MODE(1));
+		WREG32(EVERGREEN_DP_SEC_CNTL + dig->afmt->offset,
+		       EVERGREEN_DP_SEC_ASP_ENABLE |		/* Audio packet transmission */
+		       EVERGREEN_DP_SEC_ATP_ENABLE |		/* Audio timestamp packet transmission */
+		       EVERGREEN_DP_SEC_AIP_ENABLE |		/* Audio infoframe packet transmission */
+		       EVERGREEN_DP_SEC_STREAM_ENABLE);	/* Master enable for secondary stream engine */
 	} else {
-		if (!dig->afmt->enabled)
-			return;
-
-		WREG32(EVERGREEN_DP_SEC_CNTL + offset, 0);
-		radeon_audio_enable(rdev, dig->afmt->pin, false);
+		WREG32(EVERGREEN_DP_SEC_CNTL + dig->afmt->offset, 0);
 	}
 
 	dig->afmt->enabled = enable;
diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c
index 78600f5..973df06 100644
--- a/drivers/gpu/drm/radeon/evergreen.c
+++ b/drivers/gpu/drm/radeon/evergreen.c
@@ -3253,6 +3253,8 @@ static void evergreen_gpu_init(struct radeon_device *rdev)
 	}
 
 	WREG32(GRBM_CNTL, GRBM_READ_TIMEOUT(0xff));
+	WREG32(SRBM_INT_CNTL, 0x1);
+	WREG32(SRBM_INT_ACK, 0x1);
 
 	evergreen_fix_pci_max_read_req_size(rdev);
 
@@ -4324,6 +4326,7 @@ void evergreen_disable_interrupt_state(struct radeon_device *rdev)
 	tmp = RREG32(DMA_CNTL) & ~TRAP_ENABLE;
 	WREG32(DMA_CNTL, tmp);
 	WREG32(GRBM_INT_CNTL, 0);
+	WREG32(SRBM_INT_CNTL, 0);
 	WREG32(INT_MASK + EVERGREEN_CRTC0_REGISTER_OFFSET, 0);
 	WREG32(INT_MASK + EVERGREEN_CRTC1_REGISTER_OFFSET, 0);
 	if (rdev->num_crtc >= 4) {
@@ -4590,6 +4593,9 @@ int evergreen_irq_set(struct radeon_device *rdev)
 	WREG32(AFMT_AUDIO_PACKET_CONTROL + EVERGREEN_CRTC4_REGISTER_OFFSET, afmt5);
 	WREG32(AFMT_AUDIO_PACKET_CONTROL + EVERGREEN_CRTC5_REGISTER_OFFSET, afmt6);
 
+	/* posting read */
+	RREG32(SRBM_STATUS);
+
 	return 0;
 }
 
@@ -5066,6 +5072,10 @@ restart_ih:
 				DRM_ERROR("Unhandled interrupt: %d %d\n", src_id, src_data);
 				break;
 			}
+		case 96:
+			DRM_ERROR("SRBM_READ_ERROR: 0x%x\n", RREG32(SRBM_READ_ERROR));
+			WREG32(SRBM_INT_ACK, 0x1);
+			break;
 		case 124: /* UVD */
 			DRM_DEBUG("IH: UVD int: 0x%08x\n", src_data);
 			radeon_fence_process(rdev, R600_RING_TYPE_UVD_INDEX);
diff --git a/drivers/gpu/drm/radeon/evergreen_hdmi.c b/drivers/gpu/drm/radeon/evergreen_hdmi.c
index 1d9aebc..c18d4ec 100644
--- a/drivers/gpu/drm/radeon/evergreen_hdmi.c
+++ b/drivers/gpu/drm/radeon/evergreen_hdmi.c
@@ -272,7 +272,7 @@ void dce4_hdmi_audio_set_dto(struct radeon_device *rdev,
 }
 
 void dce4_dp_audio_set_dto(struct radeon_device *rdev,
-	struct radeon_crtc *crtc, unsigned int clock)
+			   struct radeon_crtc *crtc, unsigned int clock)
 {
 	u32 value;
 
@@ -294,7 +294,7 @@ void dce4_dp_audio_set_dto(struct radeon_device *rdev,
 	 * is the numerator, DCCG_AUDIO_DTOx_MODULE is the denominator
 	 */
 	WREG32(DCCG_AUDIO_DTO1_PHASE, 24000);
-	WREG32(DCCG_AUDIO_DTO1_MODULE, rdev->clock.max_pixel_clock * 10);
+	WREG32(DCCG_AUDIO_DTO1_MODULE, clock);
 }
 
 void dce4_set_vbi_packet(struct drm_encoder *encoder, u32 offset)
@@ -350,20 +350,9 @@ void dce4_set_audio_packet(struct drm_encoder *encoder, u32 offset)
 	struct drm_device *dev = encoder->dev;
 	struct radeon_device *rdev = dev->dev_private;
 
-	WREG32(HDMI_INFOFRAME_CONTROL0 + offset,
-		HDMI_AUDIO_INFO_SEND | /* enable audio info frames (frames won't be set until audio is enabled) */
-		HDMI_AUDIO_INFO_CONT); /* required for audio info values to be updated */
-
 	WREG32(AFMT_INFOFRAME_CONTROL0 + offset,
 		AFMT_AUDIO_INFO_UPDATE); /* required for audio info values to be updated */
 
-	WREG32(HDMI_INFOFRAME_CONTROL1 + offset,
-		HDMI_AUDIO_INFO_LINE(2)); /* anything other than 0 */
-
-	WREG32(HDMI_AUDIO_PACKET_CONTROL + offset,
-		HDMI_AUDIO_DELAY_EN(1) | /* set the default audio delay */
-		HDMI_AUDIO_PACKETS_PER_LINE(3)); /* should be suffient for all audio modes and small enough for all hblanks */
-
 	WREG32(AFMT_60958_0 + offset,
 		AFMT_60958_CS_CHANNEL_NUMBER_L(1));
 
@@ -408,15 +397,19 @@ void evergreen_hdmi_enable(struct drm_encoder *encoder, bool enable)
 	if (!dig || !dig->afmt)
 		return;
 
-	/* Silent, r600_hdmi_enable will raise WARN for us */
-	if (enable && dig->afmt->enabled)
-		return;
-	if (!enable && !dig->afmt->enabled)
-		return;
+	if (enable) {
+		WREG32(HDMI_INFOFRAME_CONTROL1 + dig->afmt->offset,
+		       HDMI_AUDIO_INFO_LINE(2)); /* anything other than 0 */
+
+		WREG32(HDMI_AUDIO_PACKET_CONTROL + dig->afmt->offset,
+		       HDMI_AUDIO_DELAY_EN(1) | /* set the default audio delay */
+		       HDMI_AUDIO_PACKETS_PER_LINE(3)); /* should be suffient for all audio modes and small enough for all hblanks */
 
-	if (!enable && dig->afmt->pin) {
-		radeon_audio_enable(rdev, dig->afmt->pin, 0);
-		dig->afmt->pin = NULL;
+		WREG32(HDMI_INFOFRAME_CONTROL0 + dig->afmt->offset,
+		       HDMI_AUDIO_INFO_SEND | /* enable audio info frames (frames won't be set until audio is enabled) */
+		       HDMI_AUDIO_INFO_CONT); /* required for audio info values to be updated */
+	} else {
+		WREG32(HDMI_INFOFRAME_CONTROL0 + dig->afmt->offset, 0);
 	}
 
 	dig->afmt->enabled = enable;
@@ -425,33 +418,28 @@ void evergreen_hdmi_enable(struct drm_encoder *encoder, bool enable)
 		  enable ? "En" : "Dis", dig->afmt->offset, radeon_encoder->encoder_id);
 }
 
-void evergreen_enable_dp_audio_packets(struct drm_encoder *encoder, bool enable)
+void evergreen_dp_enable(struct drm_encoder *encoder, bool enable)
 {
 	struct drm_device *dev = encoder->dev;
 	struct radeon_device *rdev = dev->dev_private;
 	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 	struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
-	uint32_t offset;
 
 	if (!dig || !dig->afmt)
 		return;
 
-	offset = dig->afmt->offset;
-
 	if (enable) {
 		struct drm_connector *connector = radeon_get_connector_for_encoder(encoder);
 		struct radeon_connector *radeon_connector = to_radeon_connector(connector);
 		struct radeon_connector_atom_dig *dig_connector;
 		uint32_t val;
 
-		if (dig->afmt->enabled)
-			return;
-
-		WREG32(EVERGREEN_DP_SEC_TIMESTAMP + offset, EVERGREEN_DP_SEC_TIMESTAMP_MODE(1));
+		WREG32(EVERGREEN_DP_SEC_TIMESTAMP + dig->afmt->offset,
+		       EVERGREEN_DP_SEC_TIMESTAMP_MODE(1));
 
 		if (radeon_connector->con_priv) {
 			dig_connector = radeon_connector->con_priv;
-			val = RREG32(EVERGREEN_DP_SEC_AUD_N + offset);
+			val = RREG32(EVERGREEN_DP_SEC_AUD_N + dig->afmt->offset);
 			val &= ~EVERGREEN_DP_SEC_N_BASE_MULTIPLE(0xf);
 
 			if (dig_connector->dp_clock == 162000)
@@ -459,21 +447,16 @@ void evergreen_enable_dp_audio_packets(struct drm_encoder *encoder, bool enable)
 			else
 				val |= EVERGREEN_DP_SEC_N_BASE_MULTIPLE(5);
 
-			WREG32(EVERGREEN_DP_SEC_AUD_N + offset, val);
+			WREG32(EVERGREEN_DP_SEC_AUD_N + dig->afmt->offset, val);
 		}
 
-		WREG32(EVERGREEN_DP_SEC_CNTL + offset,
+		WREG32(EVERGREEN_DP_SEC_CNTL + dig->afmt->offset,
 			EVERGREEN_DP_SEC_ASP_ENABLE |		/* Audio packet transmission */
 			EVERGREEN_DP_SEC_ATP_ENABLE |		/* Audio timestamp packet transmission */
 			EVERGREEN_DP_SEC_AIP_ENABLE |		/* Audio infoframe packet transmission */
 			EVERGREEN_DP_SEC_STREAM_ENABLE);	/* Master enable for secondary stream engine */
-		radeon_audio_enable(rdev, dig->afmt->pin, 0xf);
 	} else {
-		if (!dig->afmt->enabled)
-			return;
-
-		WREG32(EVERGREEN_DP_SEC_CNTL + offset, 0);
-		radeon_audio_enable(rdev, dig->afmt->pin, 0);
+		WREG32(EVERGREEN_DP_SEC_CNTL + dig->afmt->offset, 0);
 	}
 
 	dig->afmt->enabled = enable;
diff --git a/drivers/gpu/drm/radeon/evergreend.h b/drivers/gpu/drm/radeon/evergreend.h
index ee83d2a..a8d1d52 100644
--- a/drivers/gpu/drm/radeon/evergreend.h
+++ b/drivers/gpu/drm/radeon/evergreend.h
@@ -1191,6 +1191,10 @@
 #define		SOFT_RESET_REGBB			(1 << 22)
 #define		SOFT_RESET_ORB				(1 << 23)
 
+#define SRBM_READ_ERROR					0xE98
+#define SRBM_INT_CNTL					0xEA0
+#define SRBM_INT_ACK					0xEA8
+
 /* display watermarks */
 #define	DC_LB_MEMORY_SPLIT				  0x6b0c
 #define	PRIORITY_A_CNT			                  0x6b18
diff --git a/drivers/gpu/drm/radeon/ni.c b/drivers/gpu/drm/radeon/ni.c
index 24242a7..dab0081 100644
--- a/drivers/gpu/drm/radeon/ni.c
+++ b/drivers/gpu/drm/radeon/ni.c
@@ -962,6 +962,8 @@ static void cayman_gpu_init(struct radeon_device *rdev)
 	}
 
 	WREG32(GRBM_CNTL, GRBM_READ_TIMEOUT(0xff));
+	WREG32(SRBM_INT_CNTL, 0x1);
+	WREG32(SRBM_INT_ACK, 0x1);
 
 	evergreen_fix_pci_max_read_req_size(rdev);
 
@@ -1086,12 +1088,12 @@ static void cayman_gpu_init(struct radeon_device *rdev)
 
 	if ((rdev->config.cayman.max_backends_per_se == 1) &&
 	    (rdev->flags & RADEON_IS_IGP)) {
-		if ((disabled_rb_mask & 3) == 1) {
-			/* RB0 disabled, RB1 enabled */
-			tmp = 0x11111111;
-		} else {
+		if ((disabled_rb_mask & 3) == 2) {
 			/* RB1 disabled, RB0 enabled */
 			tmp = 0x00000000;
+		} else {
+			/* RB0 disabled, RB1 enabled */
+			tmp = 0x11111111;
 		}
 	} else {
 		tmp = gb_addr_config & NUM_PIPES_MASK;
diff --git a/drivers/gpu/drm/radeon/nid.h b/drivers/gpu/drm/radeon/nid.h
index ad71254..6b44580 100644
--- a/drivers/gpu/drm/radeon/nid.h
+++ b/drivers/gpu/drm/radeon/nid.h
@@ -82,6 +82,10 @@
 #define		SOFT_RESET_REGBB			(1 << 22)
 #define		SOFT_RESET_ORB				(1 << 23)
 
+#define SRBM_READ_ERROR					0xE98
+#define SRBM_INT_CNTL					0xEA0
+#define SRBM_INT_ACK					0xEA8
+
 #define	SRBM_STATUS2				        0x0EC4
 #define		DMA_BUSY 				(1 << 5)
 #define		DMA1_BUSY 				(1 << 6)
diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c
index 279801c..04f2514 100644
--- a/drivers/gpu/drm/radeon/r100.c
+++ b/drivers/gpu/drm/radeon/r100.c
@@ -728,6 +728,10 @@ int r100_irq_set(struct radeon_device *rdev)
 		tmp |= RADEON_FP2_DETECT_MASK;
 	}
 	WREG32(RADEON_GEN_INT_CNTL, tmp);
+
+	/* read back to post the write */
+	RREG32(RADEON_GEN_INT_CNTL);
+
 	return 0;
 }
 
diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c
index 07a71a2..2fcad34 100644
--- a/drivers/gpu/drm/radeon/r600.c
+++ b/drivers/gpu/drm/radeon/r600.c
@@ -3784,6 +3784,9 @@ int r600_irq_set(struct radeon_device *rdev)
 		WREG32(RV770_CG_THERMAL_INT, thermal_int);
 	}
 
+	/* posting read */
+	RREG32(R_000E50_SRBM_STATUS);
+
 	return 0;
 }
 
diff --git a/drivers/gpu/drm/radeon/r600_dpm.c b/drivers/gpu/drm/radeon/r600_dpm.c
index 843b65f..fa21544 100644
--- a/drivers/gpu/drm/radeon/r600_dpm.c
+++ b/drivers/gpu/drm/radeon/r600_dpm.c
@@ -188,7 +188,7 @@ u32 r600_dpm_get_vrefresh(struct radeon_device *rdev)
 		list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 			radeon_crtc = to_radeon_crtc(crtc);
 			if (crtc->enabled && radeon_crtc->enabled && radeon_crtc->hw_mode.clock) {
-				vrefresh = radeon_crtc->hw_mode.vrefresh;
+				vrefresh = drm_mode_vrefresh(&radeon_crtc->hw_mode);
 				break;
 			}
 		}
diff --git a/drivers/gpu/drm/radeon/r600_hdmi.c b/drivers/gpu/drm/radeon/r600_hdmi.c
index 62c91ed..dd6606b 100644
--- a/drivers/gpu/drm/radeon/r600_hdmi.c
+++ b/drivers/gpu/drm/radeon/r600_hdmi.c
@@ -476,17 +476,6 @@ void r600_hdmi_enable(struct drm_encoder *encoder, bool enable)
 	if (!dig || !dig->afmt)
 		return;
 
-	/* Silent, r600_hdmi_enable will raise WARN for us */
-	if (enable && dig->afmt->enabled)
-		return;
-	if (!enable && !dig->afmt->enabled)
-		return;
-
-	if (!enable && dig->afmt->pin) {
-		radeon_audio_enable(rdev, dig->afmt->pin, 0);
-		dig->afmt->pin = NULL;
-	}
-
 	/* Older chipsets require setting HDMI and routing manually */
 	if (!ASIC_IS_DCE3(rdev)) {
 		if (enable)
diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index 5587603..33d5a4f 100644
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -1565,6 +1565,7 @@ struct radeon_dpm {
 	int			new_active_crtc_count;
 	u32			current_active_crtcs;
 	int			current_active_crtc_count;
+	bool single_display;
 	struct radeon_dpm_dynamic_state dyn_state;
 	struct radeon_dpm_fan fan;
 	u32 tdp_limit;
diff --git a/drivers/gpu/drm/radeon/radeon_audio.c b/drivers/gpu/drm/radeon/radeon_audio.c
index a3ceef6..b21ef69 100644
--- a/drivers/gpu/drm/radeon/radeon_audio.c
+++ b/drivers/gpu/drm/radeon/radeon_audio.c
@@ -101,8 +101,8 @@ static void radeon_audio_dp_mode_set(struct drm_encoder *encoder,
 	struct drm_display_mode *mode);
 void r600_hdmi_enable(struct drm_encoder *encoder, bool enable);
 void evergreen_hdmi_enable(struct drm_encoder *encoder, bool enable);
-void evergreen_enable_dp_audio_packets(struct drm_encoder *encoder, bool enable);
-void dce6_enable_dp_audio_packets(struct drm_encoder *encoder, bool enable);
+void evergreen_dp_enable(struct drm_encoder *encoder, bool enable);
+void dce6_dp_enable(struct drm_encoder *encoder, bool enable);
 
 static const u32 pin_offsets[7] =
 {
@@ -210,7 +210,7 @@ static struct radeon_audio_funcs dce4_dp_funcs = {
 	.set_avi_packet = evergreen_set_avi_packet,
 	.set_audio_packet = dce4_set_audio_packet,
 	.mode_set = radeon_audio_dp_mode_set,
-	.dpms = evergreen_enable_dp_audio_packets,
+	.dpms = evergreen_dp_enable,
 };
 
 static struct radeon_audio_funcs dce6_hdmi_funcs = {
@@ -240,7 +240,7 @@ static struct radeon_audio_funcs dce6_dp_funcs = {
 	.set_avi_packet = evergreen_set_avi_packet,
 	.set_audio_packet = dce4_set_audio_packet,
 	.mode_set = radeon_audio_dp_mode_set,
-	.dpms = dce6_enable_dp_audio_packets,
+	.dpms = dce6_dp_enable,
 };
 
 static void radeon_audio_interface_init(struct radeon_device *rdev)
@@ -452,7 +452,7 @@ void radeon_audio_enable(struct radeon_device *rdev,
 }
 
 void radeon_audio_detect(struct drm_connector *connector,
-	enum drm_connector_status status)
+			 enum drm_connector_status status)
 {
 	struct radeon_device *rdev;
 	struct radeon_encoder *radeon_encoder;
@@ -483,14 +483,11 @@ void radeon_audio_detect(struct drm_connector *connector,
 		else
 			radeon_encoder->audio = rdev->audio.hdmi_funcs;
 
-		radeon_audio_write_speaker_allocation(connector->encoder);
-		radeon_audio_write_sad_regs(connector->encoder);
-		if (connector->encoder->crtc)
-			radeon_audio_write_latency_fields(connector->encoder,
-				&connector->encoder->crtc->mode);
+		dig->afmt->pin = radeon_audio_get_pin(connector->encoder);
 		radeon_audio_enable(rdev, dig->afmt->pin, 0xf);
 	} else {
 		radeon_audio_enable(rdev, dig->afmt->pin, 0);
+		dig->afmt->pin = NULL;
 	}
 }
 
@@ -694,23 +691,22 @@ static void radeon_audio_set_mute(struct drm_encoder *encoder, bool mute)
  * update the info frames with the data from the current display mode
  */
 static void radeon_audio_hdmi_mode_set(struct drm_encoder *encoder,
-	struct drm_display_mode *mode)
+				       struct drm_display_mode *mode)
 {
-	struct radeon_device *rdev = encoder->dev->dev_private;
 	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 	struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
 
 	if (!dig || !dig->afmt)
 		return;
 
-	/* disable audio prior to setting up hw */
-	dig->afmt->pin = radeon_audio_get_pin(encoder);
-	radeon_audio_enable(rdev, dig->afmt->pin, 0);
+	radeon_audio_set_mute(encoder, true);
 
+	radeon_audio_write_speaker_allocation(encoder);
+	radeon_audio_write_sad_regs(encoder);
+	radeon_audio_write_latency_fields(encoder, mode);
 	radeon_audio_set_dto(encoder, mode->clock);
 	radeon_audio_set_vbi_packet(encoder);
 	radeon_hdmi_set_color_depth(encoder);
-	radeon_audio_set_mute(encoder, false);
 	radeon_audio_update_acr(encoder, mode->clock);
 	radeon_audio_set_audio_packet(encoder);
 	radeon_audio_select_pin(encoder);
@@ -718,8 +714,7 @@ static void radeon_audio_hdmi_mode_set(struct drm_encoder *encoder,
 	if (radeon_audio_set_avi_packet(encoder, mode) < 0)
 		return;
 
-	/* enable audio after to setting up hw */
-	radeon_audio_enable(rdev, dig->afmt->pin, 0xf);
+	radeon_audio_set_mute(encoder, false);
 }
 
 static void radeon_audio_dp_mode_set(struct drm_encoder *encoder,
@@ -729,23 +724,26 @@ static void radeon_audio_dp_mode_set(struct drm_encoder *encoder,
 	struct radeon_device *rdev = dev->dev_private;
 	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 	struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
+	struct drm_connector *connector = radeon_get_connector_for_encoder(encoder);
+	struct radeon_connector *radeon_connector = to_radeon_connector(connector);
+	struct radeon_connector_atom_dig *dig_connector =
+		radeon_connector->con_priv;
 
 	if (!dig || !dig->afmt)
 		return;
 
-	/* disable audio prior to setting up hw */
-	dig->afmt->pin = radeon_audio_get_pin(encoder);
-	radeon_audio_enable(rdev, dig->afmt->pin, 0);
-
-	radeon_audio_set_dto(encoder, rdev->clock.default_dispclk * 10);
+	radeon_audio_write_speaker_allocation(encoder);
+	radeon_audio_write_sad_regs(encoder);
+	radeon_audio_write_latency_fields(encoder, mode);
+	if (rdev->clock.dp_extclk || ASIC_IS_DCE5(rdev))
+		radeon_audio_set_dto(encoder, rdev->clock.default_dispclk * 10);
+	else
+		radeon_audio_set_dto(encoder, dig_connector->dp_clock);
 	radeon_audio_set_audio_packet(encoder);
 	radeon_audio_select_pin(encoder);
 
 	if (radeon_audio_set_avi_packet(encoder, mode) < 0)
 		return;
-
-	/* enable audio after to setting up hw */
-	radeon_audio_enable(rdev, dig->afmt->pin, 0xf);
 }
 
 void radeon_audio_mode_set(struct drm_encoder *encoder,
diff --git a/drivers/gpu/drm/radeon/radeon_bios.c b/drivers/gpu/drm/radeon/radeon_bios.c
index 63ccb8f..d27e4cc 100644
--- a/drivers/gpu/drm/radeon/radeon_bios.c
+++ b/drivers/gpu/drm/radeon/radeon_bios.c
@@ -76,7 +76,7 @@ static bool igp_read_bios_from_vram(struct radeon_device *rdev)
 
 static bool radeon_read_bios(struct radeon_device *rdev)
 {
-	uint8_t __iomem *bios;
+	uint8_t __iomem *bios, val1, val2;
 	size_t size;
 
 	rdev->bios = NULL;
@@ -86,15 +86,19 @@ static bool radeon_read_bios(struct radeon_device *rdev)
 		return false;
 	}
 
-	if (size == 0 || bios[0] != 0x55 || bios[1] != 0xaa) {
+	val1 = readb(&bios[0]);
+	val2 = readb(&bios[1]);
+
+	if (size == 0 || val1 != 0x55 || val2 != 0xaa) {
 		pci_unmap_rom(rdev->pdev, bios);
 		return false;
 	}
-	rdev->bios = kmemdup(bios, size, GFP_KERNEL);
+	rdev->bios = kzalloc(size, GFP_KERNEL);
 	if (rdev->bios == NULL) {
 		pci_unmap_rom(rdev->pdev, bios);
 		return false;
 	}
+	memcpy_fromio(rdev->bios, bios, size);
 	pci_unmap_rom(rdev->pdev, bios);
 	return true;
 }
diff --git a/drivers/gpu/drm/radeon/radeon_cs.c b/drivers/gpu/drm/radeon/radeon_cs.c
index c830863..4d0f96c 100644
--- a/drivers/gpu/drm/radeon/radeon_cs.c
+++ b/drivers/gpu/drm/radeon/radeon_cs.c
@@ -256,11 +256,13 @@ int radeon_cs_parser_init(struct radeon_cs_parser *p, void *data)
 	u32 ring = RADEON_CS_RING_GFX;
 	s32 priority = 0;
 
+	INIT_LIST_HEAD(&p->validated);
+
 	if (!cs->num_chunks) {
 		return 0;
 	}
+
 	/* get chunks */
-	INIT_LIST_HEAD(&p->validated);
 	p->idx = 0;
 	p->ib.sa_bo = NULL;
 	p->const_ib.sa_bo = NULL;
@@ -715,6 +717,7 @@ int radeon_cs_packet_parse(struct radeon_cs_parser *p,
 	struct radeon_cs_chunk *ib_chunk = p->chunk_ib;
 	struct radeon_device *rdev = p->rdev;
 	uint32_t header;
+	int ret = 0, i;
 
 	if (idx >= ib_chunk->length_dw) {
 		DRM_ERROR("Can not parse packet at %d after CS end %d !\n",
@@ -743,14 +746,25 @@ int radeon_cs_packet_parse(struct radeon_cs_parser *p,
 		break;
 	default:
 		DRM_ERROR("Unknown packet type %d at %d !\n", pkt->type, idx);
-		return -EINVAL;
+		ret = -EINVAL;
+		goto dump_ib;
 	}
 	if ((pkt->count + 1 + pkt->idx) >= ib_chunk->length_dw) {
 		DRM_ERROR("Packet (%d:%d:%d) end after CS buffer (%d) !\n",
 			  pkt->idx, pkt->type, pkt->count, ib_chunk->length_dw);
-		return -EINVAL;
+		ret = -EINVAL;
+		goto dump_ib;
 	}
 	return 0;
+
+dump_ib:
+	for (i = 0; i < ib_chunk->length_dw; i++) {
+		if (i == idx)
+			printk("\t0x%08x <---\n", radeon_get_ib_value(p, i));
+		else
+			printk("\t0x%08x\n", radeon_get_ib_value(p, i));
+	}
+	return ret;
 }
 
 /**
diff --git a/drivers/gpu/drm/radeon/radeon_encoders.c b/drivers/gpu/drm/radeon/radeon_encoders.c
index 6b670b0..3a29703 100644
--- a/drivers/gpu/drm/radeon/radeon_encoders.c
+++ b/drivers/gpu/drm/radeon/radeon_encoders.c
@@ -179,9 +179,12 @@ static void radeon_encoder_add_backlight(struct radeon_encoder *radeon_encoder,
 		    (rdev->pdev->subsystem_vendor == 0x1734) &&
 		    (rdev->pdev->subsystem_device == 0x1107))
 			use_bl = false;
+/* Older PPC macs use on-GPU backlight controller */
+#ifndef CONFIG_PPC_PMAC
 		/* disable native backlight control on older asics */
 		else if (rdev->family < CHIP_R600)
 			use_bl = false;
+#endif
 		else
 			use_bl = true;
 	}
diff --git a/drivers/gpu/drm/radeon/radeon_fence.c b/drivers/gpu/drm/radeon/radeon_fence.c
index d13d1b5..df09ca7 100644
--- a/drivers/gpu/drm/radeon/radeon_fence.c
+++ b/drivers/gpu/drm/radeon/radeon_fence.c
@@ -1030,37 +1030,59 @@ static inline bool radeon_test_signaled(struct radeon_fence *fence)
 	return test_bit(FENCE_FLAG_SIGNALED_BIT, &fence->base.flags);
 }
 
+struct radeon_wait_cb {
+	struct fence_cb base;
+	struct task_struct *task;
+};
+
+static void
+radeon_fence_wait_cb(struct fence *fence, struct fence_cb *cb)
+{
+	struct radeon_wait_cb *wait =
+		container_of(cb, struct radeon_wait_cb, base);
+
+	wake_up_process(wait->task);
+}
+
 static signed long radeon_fence_default_wait(struct fence *f, bool intr,
 					     signed long t)
 {
 	struct radeon_fence *fence = to_radeon_fence(f);
 	struct radeon_device *rdev = fence->rdev;
-	bool signaled;
+	struct radeon_wait_cb cb;
 
-	fence_enable_sw_signaling(&fence->base);
+	cb.task = current;
 
-	/*
-	 * This function has to return -EDEADLK, but cannot hold
-	 * exclusive_lock during the wait because some callers
-	 * may already hold it. This means checking needs_reset without
-	 * lock, and not fiddling with any gpu internals.
-	 *
-	 * The callback installed with fence_enable_sw_signaling will
-	 * run before our wait_event_*timeout call, so we will see
-	 * both the signaled fence and the changes to needs_reset.
-	 */
+	if (fence_add_callback(f, &cb.base, radeon_fence_wait_cb))
+		return t;
+
+	while (t > 0) {
+		if (intr)
+			set_current_state(TASK_INTERRUPTIBLE);
+		else
+			set_current_state(TASK_UNINTERRUPTIBLE);
+
+		/*
+		 * radeon_test_signaled must be called after
+		 * set_current_state to prevent a race with wake_up_process
+		 */
+		if (radeon_test_signaled(fence))
+			break;
+
+		if (rdev->needs_reset) {
+			t = -EDEADLK;
+			break;
+		}
+
+		t = schedule_timeout(t);
+
+		if (t > 0 && intr && signal_pending(current))
+			t = -ERESTARTSYS;
+	}
+
+	__set_current_state(TASK_RUNNING);
+	fence_remove_callback(f, &cb.base);
 
-	if (intr)
-		t = wait_event_interruptible_timeout(rdev->fence_queue,
-			((signaled = radeon_test_signaled(fence)) ||
-			 rdev->needs_reset), t);
-	else
-		t = wait_event_timeout(rdev->fence_queue,
-			((signaled = radeon_test_signaled(fence)) ||
-			 rdev->needs_reset), t);
-
-	if (t > 0 && !signaled)
-		return -EDEADLK;
 	return t;
 }
 
diff --git a/drivers/gpu/drm/radeon/radeon_kfd.c b/drivers/gpu/drm/radeon/radeon_kfd.c
index 061eaa9..122eb56 100644
--- a/drivers/gpu/drm/radeon/radeon_kfd.c
+++ b/drivers/gpu/drm/radeon/radeon_kfd.c
@@ -153,7 +153,7 @@ void radeon_kfd_device_init(struct radeon_device *rdev)
 			.compute_vmid_bitmap = 0xFF00,
 
 			.first_compute_pipe = 1,
-			.compute_pipe_count = 8 - 1,
+			.compute_pipe_count = 4 - 1,
 		};
 
 		radeon_doorbell_get_kfd_info(rdev,
diff --git a/drivers/gpu/drm/radeon/radeon_mn.c b/drivers/gpu/drm/radeon/radeon_mn.c
index a69bd44..572b4db 100644
--- a/drivers/gpu/drm/radeon/radeon_mn.c
+++ b/drivers/gpu/drm/radeon/radeon_mn.c
@@ -122,7 +122,6 @@ static void radeon_mn_invalidate_range_start(struct mmu_notifier *mn,
 	it = interval_tree_iter_first(&rmn->objects, start, end);
 	while (it) {
 		struct radeon_bo *bo;
-		struct fence *fence;
 		int r;
 
 		bo = container_of(it, struct radeon_bo, mn_it);
@@ -134,12 +133,10 @@ static void radeon_mn_invalidate_range_start(struct mmu_notifier *mn,
 			continue;
 		}
 
-		fence = reservation_object_get_excl(bo->tbo.resv);
-		if (fence) {
-			r = radeon_fence_wait((struct radeon_fence *)fence, false);
-			if (r)
-				DRM_ERROR("(%d) failed to wait for user bo\n", r);
-		}
+		r = reservation_object_wait_timeout_rcu(bo->tbo.resv, true,
+			false, MAX_SCHEDULE_TIMEOUT);
+		if (r)
+			DRM_ERROR("(%d) failed to wait for user bo\n", r);
 
 		radeon_ttm_placement_from_domain(bo, RADEON_GEM_DOMAIN_CPU);
 		r = ttm_bo_validate(&bo->tbo, &bo->placement, false, false);
diff --git a/drivers/gpu/drm/radeon/radeon_object.c b/drivers/gpu/drm/radeon/radeon_object.c
index 43e0994..318165d 100644
--- a/drivers/gpu/drm/radeon/radeon_object.c
+++ b/drivers/gpu/drm/radeon/radeon_object.c
@@ -173,17 +173,6 @@ void radeon_ttm_placement_from_domain(struct radeon_bo *rbo, u32 domain)
 		else
 			rbo->placements[i].lpfn = 0;
 	}
-
-	/*
-	 * Use two-ended allocation depending on the buffer size to
-	 * improve fragmentation quality.
-	 * 512kb was measured as the most optimal number.
-	 */
-	if (rbo->tbo.mem.size > 512 * 1024) {
-		for (i = 0; i < c; i++) {
-			rbo->placements[i].flags |= TTM_PL_FLAG_TOPDOWN;
-		}
-	}
 }
 
 int radeon_bo_create(struct radeon_device *rdev,
diff --git a/drivers/gpu/drm/radeon/radeon_pm.c b/drivers/gpu/drm/radeon/radeon_pm.c
index 9f758d3..c1ba83a 100644
--- a/drivers/gpu/drm/radeon/radeon_pm.c
+++ b/drivers/gpu/drm/radeon/radeon_pm.c
@@ -837,12 +837,8 @@ static void radeon_dpm_thermal_work_handler(struct work_struct *work)
 	radeon_pm_compute_clocks(rdev);
 }
 
-static struct radeon_ps *radeon_dpm_pick_power_state(struct radeon_device *rdev,
-						     enum radeon_pm_state_type dpm_state)
+static bool radeon_dpm_single_display(struct radeon_device *rdev)
 {
-	int i;
-	struct radeon_ps *ps;
-	u32 ui_class;
 	bool single_display = (rdev->pm.dpm.new_active_crtc_count < 2) ?
 		true : false;
 
@@ -852,6 +848,23 @@ static struct radeon_ps *radeon_dpm_pick_power_state(struct radeon_device *rdev,
 			single_display = false;
 	}
 
+	/* 120hz tends to be problematic even if they are under the
+	 * vblank limit.
+	 */
+	if (single_display && (r600_dpm_get_vrefresh(rdev) >= 120))
+		single_display = false;
+
+	return single_display;
+}
+
+static struct radeon_ps *radeon_dpm_pick_power_state(struct radeon_device *rdev,
+						     enum radeon_pm_state_type dpm_state)
+{
+	int i;
+	struct radeon_ps *ps;
+	u32 ui_class;
+	bool single_display = radeon_dpm_single_display(rdev);
+
 	/* certain older asics have a separare 3D performance state,
 	 * so try that first if the user selected performance
 	 */
@@ -977,6 +990,7 @@ static void radeon_dpm_change_power_state_locked(struct radeon_device *rdev)
 	struct radeon_ps *ps;
 	enum radeon_pm_state_type dpm_state;
 	int ret;
+	bool single_display = radeon_dpm_single_display(rdev);
 
 	/* if dpm init failed */
 	if (!rdev->pm.dpm_enabled)
@@ -1001,6 +1015,9 @@ static void radeon_dpm_change_power_state_locked(struct radeon_device *rdev)
 		/* vce just modifies an existing state so force a change */
 		if (ps->vce_active != rdev->pm.dpm.vce_active)
 			goto force;
+		/* user has made a display change (such as timing) */
+		if (rdev->pm.dpm.single_display != single_display)
+			goto force;
 		if ((rdev->family < CHIP_BARTS) || (rdev->flags & RADEON_IS_IGP)) {
 			/* for pre-BTC and APUs if the num crtcs changed but state is the same,
 			 * all we need to do is update the display configuration.
@@ -1063,6 +1080,7 @@ force:
 
 	rdev->pm.dpm.current_active_crtcs = rdev->pm.dpm.new_active_crtcs;
 	rdev->pm.dpm.current_active_crtc_count = rdev->pm.dpm.new_active_crtc_count;
+	rdev->pm.dpm.single_display = single_display;
 
 	/* wait for the rings to drain */
 	for (i = 0; i < RADEON_NUM_RINGS; i++) {
diff --git a/drivers/gpu/drm/radeon/radeon_ring.c b/drivers/gpu/drm/radeon/radeon_ring.c
index 2456f69..8c78723 100644
--- a/drivers/gpu/drm/radeon/radeon_ring.c
+++ b/drivers/gpu/drm/radeon/radeon_ring.c
@@ -495,7 +495,7 @@ static int radeon_debugfs_ring_info(struct seq_file *m, void *data)
 	seq_printf(m, "%u free dwords in ring\n", ring->ring_free_dw);
 	seq_printf(m, "%u dwords in ring\n", count);
 
-	if (!ring->ready)
+	if (!ring->ring)
 		return 0;
 
 	/* print 8 dw before current rptr as often it's the last executed
diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c
index d02aa1d..b292aca 100644
--- a/drivers/gpu/drm/radeon/radeon_ttm.c
+++ b/drivers/gpu/drm/radeon/radeon_ttm.c
@@ -598,6 +598,10 @@ static void radeon_ttm_tt_unpin_userptr(struct ttm_tt *ttm)
 	enum dma_data_direction direction = write ?
 		DMA_BIDIRECTIONAL : DMA_TO_DEVICE;
 
+	/* double check that we don't free the table twice */
+	if (!ttm->sg->sgl)
+		return;
+
 	/* free the sg table and pages again */
 	dma_unmap_sg(rdev->dev, ttm->sg->sgl, ttm->sg->nents, direction);
 
diff --git a/drivers/gpu/drm/radeon/rs600.c b/drivers/gpu/drm/radeon/rs600.c
index d81182a..97a9048 100644
--- a/drivers/gpu/drm/radeon/rs600.c
+++ b/drivers/gpu/drm/radeon/rs600.c
@@ -694,6 +694,10 @@ int rs600_irq_set(struct radeon_device *rdev)
 	WREG32(R_007D18_DC_HOT_PLUG_DETECT2_INT_CONTROL, hpd2);
 	if (ASIC_IS_DCE2(rdev))
 		WREG32(R_007408_HDMI0_AUDIO_PACKET_CONTROL, hdmi0);
+
+	/* posting read */
+	RREG32(R_000040_GEN_INT_CNTL);
+
 	return 0;
 }
 
diff --git a/drivers/gpu/drm/radeon/si.c b/drivers/gpu/drm/radeon/si.c
index 73107fe..a7fb273 100644
--- a/drivers/gpu/drm/radeon/si.c
+++ b/drivers/gpu/drm/radeon/si.c
@@ -3162,6 +3162,8 @@ static void si_gpu_init(struct radeon_device *rdev)
 	}
 
 	WREG32(GRBM_CNTL, GRBM_READ_TIMEOUT(0xff));
+	WREG32(SRBM_INT_CNTL, 1);
+	WREG32(SRBM_INT_ACK, 1);
 
 	evergreen_fix_pci_max_read_req_size(rdev);
 
@@ -4699,12 +4701,6 @@ int si_ib_parse(struct radeon_device *rdev, struct radeon_ib *ib)
 		switch (pkt.type) {
 		case RADEON_PACKET_TYPE0:
 			dev_err(rdev->dev, "Packet0 not allowed!\n");
-			for (i = 0; i < ib->length_dw; i++) {
-				if (i == idx)
-					printk("\t0x%08x <---\n", ib->ptr[i]);
-				else
-					printk("\t0x%08x\n", ib->ptr[i]);
-			}
 			ret = -EINVAL;
 			break;
 		case RADEON_PACKET_TYPE2:
@@ -4736,8 +4732,15 @@ int si_ib_parse(struct radeon_device *rdev, struct radeon_ib *ib)
 			ret = -EINVAL;
 			break;
 		}
-		if (ret)
+		if (ret) {
+			for (i = 0; i < ib->length_dw; i++) {
+				if (i == idx)
+					printk("\t0x%08x <---\n", ib->ptr[i]);
+				else
+					printk("\t0x%08x\n", ib->ptr[i]);
+			}
 			break;
+		}
 	} while (idx < ib->length_dw);
 
 	return ret;
@@ -5910,6 +5913,7 @@ static void si_disable_interrupt_state(struct radeon_device *rdev)
 	tmp = RREG32(DMA_CNTL + DMA1_REGISTER_OFFSET) & ~TRAP_ENABLE;
 	WREG32(DMA_CNTL + DMA1_REGISTER_OFFSET, tmp);
 	WREG32(GRBM_INT_CNTL, 0);
+	WREG32(SRBM_INT_CNTL, 0);
 	if (rdev->num_crtc >= 2) {
 		WREG32(INT_MASK + EVERGREEN_CRTC0_REGISTER_OFFSET, 0);
 		WREG32(INT_MASK + EVERGREEN_CRTC1_REGISTER_OFFSET, 0);
@@ -6199,6 +6203,9 @@ int si_irq_set(struct radeon_device *rdev)
 
 	WREG32(CG_THERMAL_INT, thermal_int);
 
+	/* posting read */
+	RREG32(SRBM_STATUS);
+
 	return 0;
 }
 
@@ -6609,6 +6616,10 @@ restart_ih:
 				break;
 			}
 			break;
+		case 96:
+			DRM_ERROR("SRBM_READ_ERROR: 0x%x\n", RREG32(SRBM_READ_ERROR));
+			WREG32(SRBM_INT_ACK, 0x1);
+			break;
 		case 124: /* UVD */
 			DRM_DEBUG("IH: UVD int: 0x%08x\n", src_data);
 			radeon_fence_process(rdev, R600_RING_TYPE_UVD_INDEX);
@@ -7119,8 +7130,7 @@ int si_set_uvd_clocks(struct radeon_device *rdev, u32 vclk, u32 dclk)
 	WREG32_P(CG_UPLL_FUNC_CNTL, UPLL_BYPASS_EN_MASK, ~UPLL_BYPASS_EN_MASK);
 
 	if (!vclk || !dclk) {
-		/* keep the Bypass mode, put PLL to sleep */
-		WREG32_P(CG_UPLL_FUNC_CNTL, UPLL_SLEEP_MASK, ~UPLL_SLEEP_MASK);
+		/* keep the Bypass mode */
 		return 0;
 	}
 
@@ -7136,8 +7146,7 @@ int si_set_uvd_clocks(struct radeon_device *rdev, u32 vclk, u32 dclk)
 	/* set VCO_MODE to 1 */
 	WREG32_P(CG_UPLL_FUNC_CNTL, UPLL_VCO_MODE_MASK, ~UPLL_VCO_MODE_MASK);
 
-	/* toggle UPLL_SLEEP to 1 then back to 0 */
-	WREG32_P(CG_UPLL_FUNC_CNTL, UPLL_SLEEP_MASK, ~UPLL_SLEEP_MASK);
+	/* disable sleep mode */
 	WREG32_P(CG_UPLL_FUNC_CNTL, 0, ~UPLL_SLEEP_MASK);
 
 	/* deassert UPLL_RESET */
diff --git a/drivers/gpu/drm/radeon/sid.h b/drivers/gpu/drm/radeon/sid.h
index cbd91d2..99a9835 100644
--- a/drivers/gpu/drm/radeon/sid.h
+++ b/drivers/gpu/drm/radeon/sid.h
@@ -358,6 +358,10 @@
 #define	CC_SYS_RB_BACKEND_DISABLE			0xe80
 #define	GC_USER_SYS_RB_BACKEND_DISABLE			0xe84
 
+#define SRBM_READ_ERROR					0xE98
+#define SRBM_INT_CNTL					0xEA0
+#define SRBM_INT_ACK					0xEA8
+
 #define	SRBM_STATUS2				        0x0EC4
 #define		DMA_BUSY 				(1 << 5)
 #define		DMA1_BUSY 				(1 << 6)
@@ -908,8 +912,8 @@
 
 #define DCCG_AUDIO_DTO0_PHASE                           0x05b0
 #define DCCG_AUDIO_DTO0_MODULE                          0x05b4
-#define DCCG_AUDIO_DTO1_PHASE                           0x05b8
-#define DCCG_AUDIO_DTO1_MODULE                          0x05bc
+#define DCCG_AUDIO_DTO1_PHASE                           0x05c0
+#define DCCG_AUDIO_DTO1_MODULE                          0x05c4
 
 #define AFMT_AUDIO_SRC_CONTROL                          0x713c
 #define		AFMT_AUDIO_SRC_SELECT(x)		(((x) & 7) << 0)
diff --git a/drivers/gpu/drm/radeon/vce_v2_0.c b/drivers/gpu/drm/radeon/vce_v2_0.c
index 1ac7bb8..fbbe78f 100644
--- a/drivers/gpu/drm/radeon/vce_v2_0.c
+++ b/drivers/gpu/drm/radeon/vce_v2_0.c
@@ -156,6 +156,9 @@ int vce_v2_0_resume(struct radeon_device *rdev)
 	WREG32(VCE_LMI_SWAP_CNTL1, 0);
 	WREG32(VCE_LMI_VM_CTRL, 0);
 
+	WREG32(VCE_LMI_VCPU_CACHE_40BIT_BAR, addr >> 8);
+
+	addr &= 0xff;
 	size = RADEON_GPU_PAGE_ALIGN(rdev->vce_fw->size);
 	WREG32(VCE_VCPU_CACHE_OFFSET0, addr & 0x7fffffff);
 	WREG32(VCE_VCPU_CACHE_SIZE0, size);
diff --git a/drivers/gpu/drm/tegra/dc.c b/drivers/gpu/drm/tegra/dc.c
index 3aaa84a..1a52522 100644
--- a/drivers/gpu/drm/tegra/dc.c
+++ b/drivers/gpu/drm/tegra/dc.c
@@ -997,8 +997,10 @@ static void tegra_crtc_reset(struct drm_crtc *crtc)
 	crtc->state = NULL;
 
 	state = kzalloc(sizeof(*state), GFP_KERNEL);
-	if (state)
+	if (state) {
 		crtc->state = &state->base;
+		crtc->state->crtc = crtc;
+	}
 }
 
 static struct drm_crtc_state *
@@ -1012,6 +1014,7 @@ tegra_crtc_atomic_duplicate_state(struct drm_crtc *crtc)
 		return NULL;
 
 	copy->base.mode_changed = false;
+	copy->base.active_changed = false;
 	copy->base.planes_changed = false;
 	copy->base.event = NULL;
 
@@ -1227,9 +1230,6 @@ static void tegra_crtc_mode_set_nofb(struct drm_crtc *crtc)
 	/* program display mode */
 	tegra_dc_set_timings(dc, mode);
 
-	if (dc->soc->supports_border_color)
-		tegra_dc_writel(dc, 0, DC_DISP_BORDER_COLOR);
-
 	/* interlacing isn't supported yet, so disable it */
 	if (dc->soc->supports_interlacing) {
 		value = tegra_dc_readl(dc, DC_DISP_INTERLACE_CONTROL);
@@ -1252,42 +1252,7 @@ static void tegra_crtc_mode_set_nofb(struct drm_crtc *crtc)
 
 static void tegra_crtc_prepare(struct drm_crtc *crtc)
 {
-	struct tegra_dc *dc = to_tegra_dc(crtc);
-	unsigned int syncpt;
-	unsigned long value;
-
 	drm_crtc_vblank_off(crtc);
-
-	if (dc->pipe)
-		syncpt = SYNCPT_VBLANK1;
-	else
-		syncpt = SYNCPT_VBLANK0;
-
-	/* initialize display controller */
-	tegra_dc_writel(dc, 0x00000100, DC_CMD_GENERAL_INCR_SYNCPT_CNTRL);
-	tegra_dc_writel(dc, 0x100 | syncpt, DC_CMD_CONT_SYNCPT_VSYNC);
-
-	value = WIN_A_UF_INT | WIN_B_UF_INT | WIN_C_UF_INT | WIN_A_OF_INT;
-	tegra_dc_writel(dc, value, DC_CMD_INT_TYPE);
-
-	value = WIN_A_UF_INT | WIN_B_UF_INT | WIN_C_UF_INT |
-		WIN_A_OF_INT | WIN_B_OF_INT | WIN_C_OF_INT;
-	tegra_dc_writel(dc, value, DC_CMD_INT_POLARITY);
-
-	/* initialize timer */
-	value = CURSOR_THRESHOLD(0) | WINDOW_A_THRESHOLD(0x20) |
-		WINDOW_B_THRESHOLD(0x20) | WINDOW_C_THRESHOLD(0x20);
-	tegra_dc_writel(dc, value, DC_DISP_DISP_MEM_HIGH_PRIORITY);
-
-	value = CURSOR_THRESHOLD(0) | WINDOW_A_THRESHOLD(1) |
-		WINDOW_B_THRESHOLD(1) | WINDOW_C_THRESHOLD(1);
-	tegra_dc_writel(dc, value, DC_DISP_DISP_MEM_HIGH_PRIORITY_TIMER);
-
-	value = VBLANK_INT | WIN_A_UF_INT | WIN_B_UF_INT | WIN_C_UF_INT;
-	tegra_dc_writel(dc, value, DC_CMD_INT_ENABLE);
-
-	value = WIN_A_UF_INT | WIN_B_UF_INT | WIN_C_UF_INT;
-	tegra_dc_writel(dc, value, DC_CMD_INT_MASK);
 }
 
 static void tegra_crtc_commit(struct drm_crtc *crtc)
@@ -1664,6 +1629,8 @@ static int tegra_dc_init(struct host1x_client *client)
 	struct tegra_drm *tegra = drm->dev_private;
 	struct drm_plane *primary = NULL;
 	struct drm_plane *cursor = NULL;
+	unsigned int syncpt;
+	u32 value;
 	int err;
 
 	if (tegra->domain) {
@@ -1730,6 +1697,40 @@ static int tegra_dc_init(struct host1x_client *client)
 		goto cleanup;
 	}
 
+	/* initialize display controller */
+	if (dc->pipe)
+		syncpt = SYNCPT_VBLANK1;
+	else
+		syncpt = SYNCPT_VBLANK0;
+
+	tegra_dc_writel(dc, 0x00000100, DC_CMD_GENERAL_INCR_SYNCPT_CNTRL);
+	tegra_dc_writel(dc, 0x100 | syncpt, DC_CMD_CONT_SYNCPT_VSYNC);
+
+	value = WIN_A_UF_INT | WIN_B_UF_INT | WIN_C_UF_INT | WIN_A_OF_INT;
+	tegra_dc_writel(dc, value, DC_CMD_INT_TYPE);
+
+	value = WIN_A_UF_INT | WIN_B_UF_INT | WIN_C_UF_INT |
+		WIN_A_OF_INT | WIN_B_OF_INT | WIN_C_OF_INT;
+	tegra_dc_writel(dc, value, DC_CMD_INT_POLARITY);
+
+	/* initialize timer */
+	value = CURSOR_THRESHOLD(0) | WINDOW_A_THRESHOLD(0x20) |
+		WINDOW_B_THRESHOLD(0x20) | WINDOW_C_THRESHOLD(0x20);
+	tegra_dc_writel(dc, value, DC_DISP_DISP_MEM_HIGH_PRIORITY);
+
+	value = CURSOR_THRESHOLD(0) | WINDOW_A_THRESHOLD(1) |
+		WINDOW_B_THRESHOLD(1) | WINDOW_C_THRESHOLD(1);
+	tegra_dc_writel(dc, value, DC_DISP_DISP_MEM_HIGH_PRIORITY_TIMER);
+
+	value = VBLANK_INT | WIN_A_UF_INT | WIN_B_UF_INT | WIN_C_UF_INT;
+	tegra_dc_writel(dc, value, DC_CMD_INT_ENABLE);
+
+	value = WIN_A_UF_INT | WIN_B_UF_INT | WIN_C_UF_INT;
+	tegra_dc_writel(dc, value, DC_CMD_INT_MASK);
+
+	if (dc->soc->supports_border_color)
+		tegra_dc_writel(dc, 0, DC_DISP_BORDER_COLOR);
+
 	return 0;
 
 cleanup:
diff --git a/drivers/gpu/drm/tegra/hdmi.c b/drivers/gpu/drm/tegra/hdmi.c
index 7e06657..7eaaee74 100644
--- a/drivers/gpu/drm/tegra/hdmi.c
+++ b/drivers/gpu/drm/tegra/hdmi.c
@@ -851,6 +851,14 @@ static void tegra_hdmi_encoder_mode_set(struct drm_encoder *encoder,
 	h_back_porch = mode->htotal - mode->hsync_end;
 	h_front_porch = mode->hsync_start - mode->hdisplay;
 
+	err = clk_set_rate(hdmi->clk, pclk);
+	if (err < 0) {
+		dev_err(hdmi->dev, "failed to set HDMI clock frequency: %d\n",
+			err);
+	}
+
+	DRM_DEBUG_KMS("HDMI clock rate: %lu Hz\n", clk_get_rate(hdmi->clk));
+
 	/* power up sequence */
 	value = tegra_hdmi_readl(hdmi, HDMI_NV_PDISP_SOR_PLL0);
 	value &= ~SOR_PLL_PDBG;
diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index d395b0b..8d9b7de 100644
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -74,7 +74,7 @@ static void ttm_mem_type_debug(struct ttm_bo_device *bdev, int mem_type)
 	pr_err("    has_type: %d\n", man->has_type);
 	pr_err("    use_type: %d\n", man->use_type);
 	pr_err("    flags: 0x%08X\n", man->flags);
-	pr_err("    gpu_offset: 0x%08lX\n", man->gpu_offset);
+	pr_err("    gpu_offset: 0x%08llX\n", man->gpu_offset);
 	pr_err("    size: %llu\n", man->size);
 	pr_err("    available_caching: 0x%08X\n", man->available_caching);
 	pr_err("    default_caching: 0x%08X\n", man->default_caching);
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
index 6c6b655..e13b9cb 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
@@ -725,32 +725,6 @@ static int vmw_driver_load(struct drm_device *dev, unsigned long chipset)
 		goto out_err1;
 	}
 
-	ret = ttm_bo_init_mm(&dev_priv->bdev, TTM_PL_VRAM,
-			     (dev_priv->vram_size >> PAGE_SHIFT));
-	if (unlikely(ret != 0)) {
-		DRM_ERROR("Failed initializing memory manager for VRAM.\n");
-		goto out_err2;
-	}
-
-	dev_priv->has_gmr = true;
-	if (((dev_priv->capabilities & (SVGA_CAP_GMR | SVGA_CAP_GMR2)) == 0) ||
-	    refuse_dma || ttm_bo_init_mm(&dev_priv->bdev, VMW_PL_GMR,
-					 VMW_PL_GMR) != 0) {
-		DRM_INFO("No GMR memory available. "
-			 "Graphics memory resources are very limited.\n");
-		dev_priv->has_gmr = false;
-	}
-
-	if (dev_priv->capabilities & SVGA_CAP_GBOBJECTS) {
-		dev_priv->has_mob = true;
-		if (ttm_bo_init_mm(&dev_priv->bdev, VMW_PL_MOB,
-				   VMW_PL_MOB) != 0) {
-			DRM_INFO("No MOB memory available. "
-				 "3D will be disabled.\n");
-			dev_priv->has_mob = false;
-		}
-	}
-
 	dev_priv->mmio_mtrr = arch_phys_wc_add(dev_priv->mmio_start,
 					       dev_priv->mmio_size);
 
@@ -813,6 +787,33 @@ static int vmw_driver_load(struct drm_device *dev, unsigned long chipset)
 		goto out_no_fman;
 	}
 
+
+	ret = ttm_bo_init_mm(&dev_priv->bdev, TTM_PL_VRAM,
+			     (dev_priv->vram_size >> PAGE_SHIFT));
+	if (unlikely(ret != 0)) {
+		DRM_ERROR("Failed initializing memory manager for VRAM.\n");
+		goto out_no_vram;
+	}
+
+	dev_priv->has_gmr = true;
+	if (((dev_priv->capabilities & (SVGA_CAP_GMR | SVGA_CAP_GMR2)) == 0) ||
+	    refuse_dma || ttm_bo_init_mm(&dev_priv->bdev, VMW_PL_GMR,
+					 VMW_PL_GMR) != 0) {
+		DRM_INFO("No GMR memory available. "
+			 "Graphics memory resources are very limited.\n");
+		dev_priv->has_gmr = false;
+	}
+
+	if (dev_priv->capabilities & SVGA_CAP_GBOBJECTS) {
+		dev_priv->has_mob = true;
+		if (ttm_bo_init_mm(&dev_priv->bdev, VMW_PL_MOB,
+				   VMW_PL_MOB) != 0) {
+			DRM_INFO("No MOB memory available. "
+				 "3D will be disabled.\n");
+			dev_priv->has_mob = false;
+		}
+	}
+
 	vmw_kms_save_vga(dev_priv);
 
 	/* Start kms and overlay systems, needs fifo. */
@@ -838,6 +839,12 @@ out_no_fifo:
 	vmw_kms_close(dev_priv);
 out_no_kms:
 	vmw_kms_restore_vga(dev_priv);
+	if (dev_priv->has_mob)
+		(void) ttm_bo_clean_mm(&dev_priv->bdev, VMW_PL_MOB);
+	if (dev_priv->has_gmr)
+		(void) ttm_bo_clean_mm(&dev_priv->bdev, VMW_PL_GMR);
+	(void)ttm_bo_clean_mm(&dev_priv->bdev, TTM_PL_VRAM);
+out_no_vram:
 	vmw_fence_manager_takedown(dev_priv->fman);
 out_no_fman:
 	if (dev_priv->capabilities & SVGA_CAP_IRQMASK)
@@ -853,12 +860,6 @@ out_err4:
 	iounmap(dev_priv->mmio_virt);
 out_err3:
 	arch_phys_wc_del(dev_priv->mmio_mtrr);
-	if (dev_priv->has_mob)
-		(void) ttm_bo_clean_mm(&dev_priv->bdev, VMW_PL_MOB);
-	if (dev_priv->has_gmr)
-		(void) ttm_bo_clean_mm(&dev_priv->bdev, VMW_PL_GMR);
-	(void)ttm_bo_clean_mm(&dev_priv->bdev, TTM_PL_VRAM);
-out_err2:
 	(void)ttm_bo_device_release(&dev_priv->bdev);
 out_err1:
 	vmw_ttm_global_release(dev_priv);
@@ -887,6 +888,13 @@ static int vmw_driver_unload(struct drm_device *dev)
 	}
 	vmw_kms_close(dev_priv);
 	vmw_overlay_close(dev_priv);
+
+	if (dev_priv->has_mob)
+		(void) ttm_bo_clean_mm(&dev_priv->bdev, VMW_PL_MOB);
+	if (dev_priv->has_gmr)
+		(void)ttm_bo_clean_mm(&dev_priv->bdev, VMW_PL_GMR);
+	(void)ttm_bo_clean_mm(&dev_priv->bdev, TTM_PL_VRAM);
+
 	vmw_fence_manager_takedown(dev_priv->fman);
 	if (dev_priv->capabilities & SVGA_CAP_IRQMASK)
 		drm_irq_uninstall(dev_priv->dev);
@@ -898,11 +906,6 @@ static int vmw_driver_unload(struct drm_device *dev)
 	ttm_object_device_release(&dev_priv->tdev);
 	iounmap(dev_priv->mmio_virt);
 	arch_phys_wc_del(dev_priv->mmio_mtrr);
-	if (dev_priv->has_mob)
-		(void) ttm_bo_clean_mm(&dev_priv->bdev, VMW_PL_MOB);
-	if (dev_priv->has_gmr)
-		(void)ttm_bo_clean_mm(&dev_priv->bdev, VMW_PL_GMR);
-	(void)ttm_bo_clean_mm(&dev_priv->bdev, TTM_PL_VRAM);
 	(void)ttm_bo_device_release(&dev_priv->bdev);
 	vmw_ttm_global_release(dev_priv);
 
@@ -1235,6 +1238,7 @@ static void vmw_remove(struct pci_dev *pdev)
 {
 	struct drm_device *dev = pci_get_drvdata(pdev);
 
+	pci_disable_device(pdev);
 	drm_put_dev(dev);
 }
 
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c b/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c
index 33176d0..654c8da 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c
@@ -890,7 +890,8 @@ static int vmw_translate_mob_ptr(struct vmw_private *dev_priv,
 	ret = vmw_user_dmabuf_lookup(sw_context->fp->tfile, handle, &vmw_bo);
 	if (unlikely(ret != 0)) {
 		DRM_ERROR("Could not find or use MOB buffer.\n");
-		return -EINVAL;
+		ret = -EINVAL;
+		goto out_no_reloc;
 	}
 	bo = &vmw_bo->base;
 
@@ -914,7 +915,7 @@ static int vmw_translate_mob_ptr(struct vmw_private *dev_priv,
 
 out_no_reloc:
 	vmw_dmabuf_unreference(&vmw_bo);
-	vmw_bo_p = NULL;
+	*vmw_bo_p = NULL;
 	return ret;
 }
 
@@ -951,7 +952,8 @@ static int vmw_translate_guest_ptr(struct vmw_private *dev_priv,
 	ret = vmw_user_dmabuf_lookup(sw_context->fp->tfile, handle, &vmw_bo);
 	if (unlikely(ret != 0)) {
 		DRM_ERROR("Could not find or use GMR region.\n");
-		return -EINVAL;
+		ret = -EINVAL;
+		goto out_no_reloc;
 	}
 	bo = &vmw_bo->base;
 
@@ -974,7 +976,7 @@ static int vmw_translate_guest_ptr(struct vmw_private *dev_priv,
 
 out_no_reloc:
 	vmw_dmabuf_unreference(&vmw_bo);
-	vmw_bo_p = NULL;
+	*vmw_bo_p = NULL;
 	return ret;
 }
 
@@ -2780,13 +2782,11 @@ int vmw_execbuf_ioctl(struct drm_device *dev, void *data,
 				  NULL, arg->command_size, arg->throttle_us,
 				  (void __user *)(unsigned long)arg->fence_rep,
 				  NULL);
-
+	ttm_read_unlock(&dev_priv->reservation_sem);
 	if (unlikely(ret != 0))
-		goto out_unlock;
+		return ret;
 
 	vmw_kms_cursor_post_execbuf(dev_priv);
 
-out_unlock:
-	ttm_read_unlock(&dev_priv->reservation_sem);
-	return ret;
+	return 0;
 }
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
index 8725b79..07cda8c 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
@@ -2033,23 +2033,17 @@ int vmw_kms_update_layout_ioctl(struct drm_device *dev, void *data,
 	int i;
 	struct drm_mode_config *mode_config = &dev->mode_config;
 
-	ret = ttm_read_lock(&dev_priv->reservation_sem, true);
-	if (unlikely(ret != 0))
-		return ret;
-
 	if (!arg->num_outputs) {
 		struct drm_vmw_rect def_rect = {0, 0, 800, 600};
 		vmw_du_update_layout(dev_priv, 1, &def_rect);
-		goto out_unlock;
+		return 0;
 	}
 
 	rects_size = arg->num_outputs * sizeof(struct drm_vmw_rect);
 	rects = kcalloc(arg->num_outputs, sizeof(struct drm_vmw_rect),
 			GFP_KERNEL);
-	if (unlikely(!rects)) {
-		ret = -ENOMEM;
-		goto out_unlock;
-	}
+	if (unlikely(!rects))
+		return -ENOMEM;
 
 	user_rects = (void __user *)(unsigned long)arg->rects;
 	ret = copy_from_user(rects, user_rects, rects_size);
@@ -2074,7 +2068,5 @@ int vmw_kms_update_layout_ioctl(struct drm_device *dev, void *data,
 
 out_free:
 	kfree(rects);
-out_unlock:
-	ttm_read_unlock(&dev_priv->reservation_sem);
 	return ret;
 }
diff --git a/drivers/gpu/ipu-v3/ipu-di.c b/drivers/gpu/ipu-v3/ipu-di.c
index b61d6be..3ddfb3d 100644
--- a/drivers/gpu/ipu-v3/ipu-di.c
+++ b/drivers/gpu/ipu-v3/ipu-di.c
@@ -459,6 +459,8 @@ static void ipu_di_config_clock(struct ipu_di *di,
 
 		clkrate = clk_get_rate(di->clk_ipu);
 		div = DIV_ROUND_CLOSEST(clkrate, sig->mode.pixelclock);
+		if (div == 0)
+			div = 1;
 		rate = clkrate / div;
 
 		error = rate / (sig->mode.pixelclock / 1000);
diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c
index 19603ef..008e89b 100644
--- a/drivers/hid/hid-input.c
+++ b/drivers/hid/hid-input.c
@@ -339,7 +339,7 @@ static int hidinput_get_battery_property(struct power_supply *psy,
 					 enum power_supply_property prop,
 					 union power_supply_propval *val)
 {
-	struct hid_device *dev = container_of(psy, struct hid_device, battery);
+	struct hid_device *dev = power_supply_get_drvdata(psy);
 	int ret = 0;
 	__u8 *buf;
 
@@ -397,26 +397,32 @@ static int hidinput_get_battery_property(struct power_supply *psy,
 
 static bool hidinput_setup_battery(struct hid_device *dev, unsigned report_type, struct hid_field *field)
 {
-	struct power_supply *battery = &dev->battery;
-	int ret;
+	struct power_supply_desc *psy_desc = NULL;
+	struct power_supply_config psy_cfg = { .drv_data = dev, };
 	unsigned quirks;
 	s32 min, max;
 
 	if (field->usage->hid != HID_DC_BATTERYSTRENGTH)
 		return false;	/* no match */
 
-	if (battery->name != NULL)
+	if (dev->battery != NULL)
 		goto out;	/* already initialized? */
 
-	battery->name = kasprintf(GFP_KERNEL, "hid-%s-battery", dev->uniq);
-	if (battery->name == NULL)
+	psy_desc = kzalloc(sizeof(*psy_desc), GFP_KERNEL);
+	if (psy_desc == NULL)
 		goto out;
 
-	battery->type = POWER_SUPPLY_TYPE_BATTERY;
-	battery->properties = hidinput_battery_props;
-	battery->num_properties = ARRAY_SIZE(hidinput_battery_props);
-	battery->use_for_apm = 0;
-	battery->get_property = hidinput_get_battery_property;
+	psy_desc->name = kasprintf(GFP_KERNEL, "hid-%s-battery", dev->uniq);
+	if (psy_desc->name == NULL) {
+		kfree(psy_desc);
+		goto out;
+	}
+
+	psy_desc->type = POWER_SUPPLY_TYPE_BATTERY;
+	psy_desc->properties = hidinput_battery_props;
+	psy_desc->num_properties = ARRAY_SIZE(hidinput_battery_props);
+	psy_desc->use_for_apm = 0;
+	psy_desc->get_property = hidinput_get_battery_property;
 
 	quirks = find_battery_quirk(dev);
 
@@ -439,27 +445,30 @@ static bool hidinput_setup_battery(struct hid_device *dev, unsigned report_type,
 	dev->battery_report_type = report_type;
 	dev->battery_report_id = field->report->id;
 
-	ret = power_supply_register(&dev->dev, battery);
-	if (ret != 0) {
-		hid_warn(dev, "can't register power supply: %d\n", ret);
-		kfree(battery->name);
-		battery->name = NULL;
+	dev->battery = power_supply_register(&dev->dev, psy_desc, &psy_cfg);
+	if (IS_ERR(dev->battery)) {
+		hid_warn(dev, "can't register power supply: %ld\n",
+				PTR_ERR(dev->battery));
+		kfree(psy_desc->name);
+		kfree(psy_desc);
+		dev->battery = NULL;
+	} else {
+		power_supply_powers(dev->battery, &dev->dev);
 	}
 
-	power_supply_powers(battery, &dev->dev);
-
 out:
 	return true;
 }
 
 static void hidinput_cleanup_battery(struct hid_device *dev)
 {
-	if (!dev->battery.name)
+	if (!dev->battery)
 		return;
 
-	power_supply_unregister(&dev->battery);
-	kfree(dev->battery.name);
-	dev->battery.name = NULL;
+	power_supply_unregister(dev->battery);
+	kfree(dev->battery->desc->name);
+	kfree(dev->battery->desc);
+	dev->battery = NULL;
 }
 #else  /* !CONFIG_HID_BATTERY_STRENGTH */
 static bool hidinput_setup_battery(struct hid_device *dev, unsigned report_type,
diff --git a/drivers/hid/hid-sony.c b/drivers/hid/hid-sony.c
index 27f67e7..6ca96ce 100644
--- a/drivers/hid/hid-sony.c
+++ b/drivers/hid/hid-sony.c
@@ -816,7 +816,8 @@ struct sony_sc {
 	struct led_classdev *leds[MAX_LEDS];
 	unsigned long quirks;
 	struct work_struct state_worker;
-	struct power_supply battery;
+	struct power_supply *battery;
+	struct power_supply_desc battery_desc;
 	int device_id;
 	__u8 *output_report_dmabuf;
 
@@ -1681,7 +1682,7 @@ static int sony_battery_get_property(struct power_supply *psy,
 				     enum power_supply_property psp,
 				     union power_supply_propval *val)
 {
-	struct sony_sc *sc = container_of(psy, struct sony_sc, battery);
+	struct sony_sc *sc = power_supply_get_drvdata(psy);
 	unsigned long flags;
 	int ret = 0;
 	u8 battery_charging, battery_capacity, cable_state;
@@ -1720,6 +1721,7 @@ static int sony_battery_get_property(struct power_supply *psy,
 
 static int sony_battery_probe(struct sony_sc *sc)
 {
+	struct power_supply_config psy_cfg = { .drv_data = sc, };
 	struct hid_device *hdev = sc->hdev;
 	int ret;
 
@@ -1729,39 +1731,42 @@ static int sony_battery_probe(struct sony_sc *sc)
 	 */
 	sc->battery_capacity = 100;
 
-	sc->battery.properties = sony_battery_props;
-	sc->battery.num_properties = ARRAY_SIZE(sony_battery_props);
-	sc->battery.get_property = sony_battery_get_property;
-	sc->battery.type = POWER_SUPPLY_TYPE_BATTERY;
-	sc->battery.use_for_apm = 0;
-	sc->battery.name = kasprintf(GFP_KERNEL, "sony_controller_battery_%pMR",
-				     sc->mac_address);
-	if (!sc->battery.name)
+	sc->battery_desc.properties = sony_battery_props;
+	sc->battery_desc.num_properties = ARRAY_SIZE(sony_battery_props);
+	sc->battery_desc.get_property = sony_battery_get_property;
+	sc->battery_desc.type = POWER_SUPPLY_TYPE_BATTERY;
+	sc->battery_desc.use_for_apm = 0;
+	sc->battery_desc.name = kasprintf(GFP_KERNEL,
+					  "sony_controller_battery_%pMR",
+					  sc->mac_address);
+	if (!sc->battery_desc.name)
 		return -ENOMEM;
 
-	ret = power_supply_register(&hdev->dev, &sc->battery);
-	if (ret) {
+	sc->battery = power_supply_register(&hdev->dev, &sc->battery_desc,
+					    &psy_cfg);
+	if (IS_ERR(sc->battery)) {
+		ret = PTR_ERR(sc->battery);
 		hid_err(hdev, "Unable to register battery device\n");
 		goto err_free;
 	}
 
-	power_supply_powers(&sc->battery, &hdev->dev);
+	power_supply_powers(sc->battery, &hdev->dev);
 	return 0;
 
 err_free:
-	kfree(sc->battery.name);
-	sc->battery.name = NULL;
+	kfree(sc->battery_desc.name);
+	sc->battery_desc.name = NULL;
 	return ret;
 }
 
 static void sony_battery_remove(struct sony_sc *sc)
 {
-	if (!sc->battery.name)
+	if (!sc->battery_desc.name)
 		return;
 
-	power_supply_unregister(&sc->battery);
-	kfree(sc->battery.name);
-	sc->battery.name = NULL;
+	power_supply_unregister(sc->battery);
+	kfree(sc->battery_desc.name);
+	sc->battery_desc.name = NULL;
 }
 
 /*
diff --git a/drivers/hid/hid-wiimote-modules.c b/drivers/hid/hid-wiimote-modules.c
index 6b61f01..05e23c4 100644
--- a/drivers/hid/hid-wiimote-modules.c
+++ b/drivers/hid/hid-wiimote-modules.c
@@ -203,8 +203,7 @@ static int wiimod_battery_get_property(struct power_supply *psy,
 				       enum power_supply_property psp,
 				       union power_supply_propval *val)
 {
-	struct wiimote_data *wdata = container_of(psy, struct wiimote_data,
-						  battery);
+	struct wiimote_data *wdata = power_supply_get_drvdata(psy);
 	int ret = 0, state;
 	unsigned long flags;
 
@@ -238,42 +237,46 @@ static int wiimod_battery_get_property(struct power_supply *psy,
 static int wiimod_battery_probe(const struct wiimod_ops *ops,
 				struct wiimote_data *wdata)
 {
+	struct power_supply_config psy_cfg = { .drv_data = wdata, };
 	int ret;
 
-	wdata->battery.properties = wiimod_battery_props;
-	wdata->battery.num_properties = ARRAY_SIZE(wiimod_battery_props);
-	wdata->battery.get_property = wiimod_battery_get_property;
-	wdata->battery.type = POWER_SUPPLY_TYPE_BATTERY;
-	wdata->battery.use_for_apm = 0;
-	wdata->battery.name = kasprintf(GFP_KERNEL, "wiimote_battery_%s",
-					wdata->hdev->uniq);
-	if (!wdata->battery.name)
+	wdata->battery_desc.properties = wiimod_battery_props;
+	wdata->battery_desc.num_properties = ARRAY_SIZE(wiimod_battery_props);
+	wdata->battery_desc.get_property = wiimod_battery_get_property;
+	wdata->battery_desc.type = POWER_SUPPLY_TYPE_BATTERY;
+	wdata->battery_desc.use_for_apm = 0;
+	wdata->battery_desc.name = kasprintf(GFP_KERNEL, "wiimote_battery_%s",
+					     wdata->hdev->uniq);
+	if (!wdata->battery_desc.name)
 		return -ENOMEM;
 
-	ret = power_supply_register(&wdata->hdev->dev, &wdata->battery);
-	if (ret) {
+	wdata->battery = power_supply_register(&wdata->hdev->dev,
+					       &wdata->battery_desc,
+					       &psy_cfg);
+	if (IS_ERR(wdata->battery)) {
 		hid_err(wdata->hdev, "cannot register battery device\n");
+		ret = PTR_ERR(wdata->battery);
 		goto err_free;
 	}
 
-	power_supply_powers(&wdata->battery, &wdata->hdev->dev);
+	power_supply_powers(wdata->battery, &wdata->hdev->dev);
 	return 0;
 
 err_free:
-	kfree(wdata->battery.name);
-	wdata->battery.name = NULL;
+	kfree(wdata->battery_desc.name);
+	wdata->battery_desc.name = NULL;
 	return ret;
 }
 
 static void wiimod_battery_remove(const struct wiimod_ops *ops,
 				  struct wiimote_data *wdata)
 {
-	if (!wdata->battery.name)
+	if (!wdata->battery_desc.name)
 		return;
 
-	power_supply_unregister(&wdata->battery);
-	kfree(wdata->battery.name);
-	wdata->battery.name = NULL;
+	power_supply_unregister(wdata->battery);
+	kfree(wdata->battery_desc.name);
+	wdata->battery_desc.name = NULL;
 }
 
 static const struct wiimod_ops wiimod_battery = {
diff --git a/drivers/hid/hid-wiimote.h b/drivers/hid/hid-wiimote.h
index 10934aa..875694d 100644
--- a/drivers/hid/hid-wiimote.h
+++ b/drivers/hid/hid-wiimote.h
@@ -147,7 +147,8 @@ struct wiimote_data {
 	struct led_classdev *leds[4];
 	struct input_dev *accel;
 	struct input_dev *ir;
-	struct power_supply battery;
+	struct power_supply *battery;
+	struct power_supply_desc battery_desc;
 	struct input_dev *mp;
 	struct timer_list timer;
 	struct wiimote_debug *debug;
diff --git a/drivers/hid/wacom.h b/drivers/hid/wacom.h
index ad7318d..024f4d89 100644
--- a/drivers/hid/wacom.h
+++ b/drivers/hid/wacom.h
@@ -119,8 +119,10 @@ struct wacom {
 		u8 img_lum;   /* OLED matrix display brightness */
 	} led;
 	bool led_initialized;
-	struct power_supply battery;
-	struct power_supply ac;
+	struct power_supply *battery;
+	struct power_supply *ac;
+	struct power_supply_desc battery_desc;
+	struct power_supply_desc ac_desc;
 };
 
 static inline void wacom_schedule_work(struct wacom_wac *wacom_wac)
diff --git a/drivers/hid/wacom_sys.c b/drivers/hid/wacom_sys.c
index 1b00d8d..e8607d0 100644
--- a/drivers/hid/wacom_sys.c
+++ b/drivers/hid/wacom_sys.c
@@ -961,7 +961,7 @@ static int wacom_battery_get_property(struct power_supply *psy,
 				      enum power_supply_property psp,
 				      union power_supply_propval *val)
 {
-	struct wacom *wacom = container_of(psy, struct wacom, battery);
+	struct wacom *wacom = power_supply_get_drvdata(psy);
 	int ret = 0;
 
 	switch (psp) {
@@ -998,7 +998,7 @@ static int wacom_ac_get_property(struct power_supply *psy,
 				enum power_supply_property psp,
 				union power_supply_propval *val)
 {
-	struct wacom *wacom = container_of(psy, struct wacom, ac);
+	struct wacom *wacom = power_supply_get_drvdata(psy);
 	int ret = 0;
 
 	switch (psp) {
@@ -1020,42 +1020,46 @@ static int wacom_ac_get_property(struct power_supply *psy,
 static int wacom_initialize_battery(struct wacom *wacom)
 {
 	static atomic_t battery_no = ATOMIC_INIT(0);
-	int error;
+	struct power_supply_config psy_cfg = { .drv_data = wacom, };
 	unsigned long n;
 
 	if (wacom->wacom_wac.features.quirks & WACOM_QUIRK_BATTERY) {
+		struct power_supply_desc *bat_desc = &wacom->battery_desc;
+		struct power_supply_desc *ac_desc = &wacom->ac_desc;
 		n = atomic_inc_return(&battery_no) - 1;
 
-		wacom->battery.properties = wacom_battery_props;
-		wacom->battery.num_properties = ARRAY_SIZE(wacom_battery_props);
-		wacom->battery.get_property = wacom_battery_get_property;
+		bat_desc->properties = wacom_battery_props;
+		bat_desc->num_properties = ARRAY_SIZE(wacom_battery_props);
+		bat_desc->get_property = wacom_battery_get_property;
 		sprintf(wacom->wacom_wac.bat_name, "wacom_battery_%ld", n);
-		wacom->battery.name = wacom->wacom_wac.bat_name;
-		wacom->battery.type = POWER_SUPPLY_TYPE_BATTERY;
-		wacom->battery.use_for_apm = 0;
+		bat_desc->name = wacom->wacom_wac.bat_name;
+		bat_desc->type = POWER_SUPPLY_TYPE_BATTERY;
+		bat_desc->use_for_apm = 0;
 
-		wacom->ac.properties = wacom_ac_props;
-		wacom->ac.num_properties = ARRAY_SIZE(wacom_ac_props);
-		wacom->ac.get_property = wacom_ac_get_property;
+		ac_desc->properties = wacom_ac_props;
+		ac_desc->num_properties = ARRAY_SIZE(wacom_ac_props);
+		ac_desc->get_property = wacom_ac_get_property;
 		sprintf(wacom->wacom_wac.ac_name, "wacom_ac_%ld", n);
-		wacom->ac.name = wacom->wacom_wac.ac_name;
-		wacom->ac.type = POWER_SUPPLY_TYPE_MAINS;
-		wacom->ac.use_for_apm = 0;
-
-		error = power_supply_register(&wacom->hdev->dev,
-					      &wacom->battery);
-		if (error)
-			return error;
-
-		power_supply_powers(&wacom->battery, &wacom->hdev->dev);
-
-		error = power_supply_register(&wacom->hdev->dev, &wacom->ac);
-		if (error) {
-			power_supply_unregister(&wacom->battery);
-			return error;
+		ac_desc->name = wacom->wacom_wac.ac_name;
+		ac_desc->type = POWER_SUPPLY_TYPE_MAINS;
+		ac_desc->use_for_apm = 0;
+
+		wacom->battery = power_supply_register(&wacom->hdev->dev,
+					      &wacom->battery_desc, &psy_cfg);
+		if (IS_ERR(wacom->battery))
+			return PTR_ERR(wacom->battery);
+
+		power_supply_powers(wacom->battery, &wacom->hdev->dev);
+
+		wacom->ac = power_supply_register(&wacom->hdev->dev,
+						  &wacom->ac_desc,
+						  &psy_cfg);
+		if (IS_ERR(wacom->ac)) {
+			power_supply_unregister(wacom->battery);
+			return PTR_ERR(wacom->ac);
 		}
 
-		power_supply_powers(&wacom->ac, &wacom->hdev->dev);
+		power_supply_powers(wacom->ac, &wacom->hdev->dev);
 	}
 
 	return 0;
@@ -1063,11 +1067,11 @@ static int wacom_initialize_battery(struct wacom *wacom)
 
 static void wacom_destroy_battery(struct wacom *wacom)
 {
-	if (wacom->battery.dev) {
-		power_supply_unregister(&wacom->battery);
-		wacom->battery.dev = NULL;
-		power_supply_unregister(&wacom->ac);
-		wacom->ac.dev = NULL;
+	if (wacom->battery) {
+		power_supply_unregister(wacom->battery);
+		wacom->battery = NULL;
+		power_supply_unregister(wacom->ac);
+		wacom->ac = NULL;
 	}
 }
 
@@ -1339,11 +1343,11 @@ void wacom_battery_work(struct work_struct *work)
 	struct wacom *wacom = container_of(work, struct wacom, work);
 
 	if ((wacom->wacom_wac.features.quirks & WACOM_QUIRK_BATTERY) &&
-	     !wacom->battery.dev) {
+	     !wacom->battery) {
 		wacom_initialize_battery(wacom);
 	}
 	else if (!(wacom->wacom_wac.features.quirks & WACOM_QUIRK_BATTERY) &&
-		 wacom->battery.dev) {
+		 wacom->battery) {
 		wacom_destroy_battery(wacom);
 	}
 }
diff --git a/drivers/hid/wacom_wac.c b/drivers/hid/wacom_wac.c
index 69c7df7..fa54d32 100644
--- a/drivers/hid/wacom_wac.c
+++ b/drivers/hid/wacom_wac.c
@@ -61,8 +61,8 @@ static void wacom_notify_battery(struct wacom_wac *wacom_wac,
 		wacom_wac->bat_connected = bat_connected;
 		wacom_wac->ps_connected = ps_connected;
 
-		if (wacom->battery.dev)
-			power_supply_changed(&wacom->battery);
+		if (wacom->battery)
+			power_supply_changed(wacom->battery);
 	}
 }
 
@@ -1991,7 +1991,7 @@ static int wacom_status_irq(struct wacom_wac *wacom_wac, size_t len)
 		wacom_notify_battery(wacom_wac, battery, charging,
 				     battery || charging, 1);
 
-		if (!wacom->battery.dev &&
+		if (!wacom->battery &&
 		    !(features->quirks & WACOM_QUIRK_BATTERY)) {
 			features->quirks |= WACOM_QUIRK_BATTERY;
 			INIT_WORK(&wacom->work, wacom_battery_work);
@@ -1999,7 +1999,7 @@ static int wacom_status_irq(struct wacom_wac *wacom_wac, size_t len)
 		}
 	}
 	else if ((features->quirks & WACOM_QUIRK_BATTERY) &&
-		 wacom->battery.dev) {
+		 wacom->battery) {
 		features->quirks &= ~WACOM_QUIRK_BATTERY;
 		INIT_WORK(&wacom->work, wacom_battery_work);
 		wacom_schedule_work(wacom_wac);
diff --git a/drivers/hsi/clients/Kconfig b/drivers/hsi/clients/Kconfig
index bc60dec..d612620 100644
--- a/drivers/hsi/clients/Kconfig
+++ b/drivers/hsi/clients/Kconfig
@@ -6,13 +6,23 @@ comment "HSI clients"
 
 config NOKIA_MODEM
 	tristate "Nokia Modem"
-	depends on HSI && SSI_PROTOCOL
+	depends on HSI && SSI_PROTOCOL && CMT_SPEECH
 	help
 	Say Y here if you want to add support for the modem on Nokia
 	N900 (Nokia RX-51) hardware.
 
 	If unsure, say N.
 
+config CMT_SPEECH
+	tristate "CMT speech"
+	depends on HSI && SSI_PROTOCOL
+	help
+	If you say Y here, you will enable the CMT speech protocol used
+	by Nokia modems. If you say M the protocol will be available as
+	module named cmt_speech.
+
+	If unsure, say N.
+
 config SSI_PROTOCOL
 	tristate "SSI protocol"
 	depends on HSI && PHONET && OMAP_SSI
diff --git a/drivers/hsi/clients/Makefile b/drivers/hsi/clients/Makefile
index 4d5bc0e..2607232 100644
--- a/drivers/hsi/clients/Makefile
+++ b/drivers/hsi/clients/Makefile
@@ -4,4 +4,5 @@
 
 obj-$(CONFIG_NOKIA_MODEM)	+= nokia-modem.o
 obj-$(CONFIG_SSI_PROTOCOL)	+= ssi_protocol.o
+obj-$(CONFIG_CMT_SPEECH)	+= cmt_speech.o
 obj-$(CONFIG_HSI_CHAR)		+= hsi_char.o
diff --git a/drivers/hsi/clients/cmt_speech.c b/drivers/hsi/clients/cmt_speech.c
new file mode 100644
index 0000000..4983529
--- /dev/null
+++ b/drivers/hsi/clients/cmt_speech.c
@@ -0,0 +1,1457 @@
+/*
+ * cmt_speech.c - HSI CMT speech driver
+ *
+ * Copyright (C) 2008,2009,2010 Nokia Corporation. All rights reserved.
+ *
+ * Contact: Kai Vehmanen <kai.vehmanen@nokia.com>
+ * Original author: Peter Ujfalusi <peter.ujfalusi@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ */
+
+#include <linux/errno.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/init.h>
+#include <linux/device.h>
+#include <linux/miscdevice.h>
+#include <linux/mm.h>
+#include <linux/slab.h>
+#include <linux/fs.h>
+#include <linux/poll.h>
+#include <linux/sched.h>
+#include <linux/ioctl.h>
+#include <linux/uaccess.h>
+#include <linux/pm_qos.h>
+#include <linux/hsi/hsi.h>
+#include <linux/hsi/ssi_protocol.h>
+#include <linux/hsi/cs-protocol.h>
+
+#define CS_MMAP_SIZE	PAGE_SIZE
+
+struct char_queue {
+	struct list_head	list;
+	u32			msg;
+};
+
+struct cs_char {
+	unsigned int		opened;
+	struct hsi_client	*cl;
+	struct cs_hsi_iface	*hi;
+	struct list_head	chardev_queue;
+	struct list_head	dataind_queue;
+	int			dataind_pending;
+	/* mmap things */
+	unsigned long		mmap_base;
+	unsigned long		mmap_size;
+	spinlock_t		lock;
+	struct fasync_struct	*async_queue;
+	wait_queue_head_t	wait;
+	/* hsi channel ids */
+	int                     channel_id_cmd;
+	int                     channel_id_data;
+};
+
+#define SSI_CHANNEL_STATE_READING	1
+#define SSI_CHANNEL_STATE_WRITING	(1 << 1)
+#define SSI_CHANNEL_STATE_POLL		(1 << 2)
+#define SSI_CHANNEL_STATE_ERROR		(1 << 3)
+
+#define TARGET_MASK			0xf000000
+#define TARGET_REMOTE			(1 << CS_DOMAIN_SHIFT)
+#define TARGET_LOCAL			0
+
+/* Number of pre-allocated commands buffers */
+#define CS_MAX_CMDS		        4
+
+/*
+ * During data transfers, transactions must be handled
+ * within 20ms (fixed value in cmtspeech HSI protocol)
+ */
+#define CS_QOS_LATENCY_FOR_DATA_USEC	20000
+
+/* Timeout to wait for pending HSI transfers to complete */
+#define CS_HSI_TRANSFER_TIMEOUT_MS      500
+
+
+#define RX_PTR_BOUNDARY_SHIFT		8
+#define RX_PTR_MAX_SHIFT		(RX_PTR_BOUNDARY_SHIFT + \
+						CS_MAX_BUFFERS_SHIFT)
+struct cs_hsi_iface {
+	struct hsi_client		*cl;
+	struct hsi_client		*master;
+
+	unsigned int			iface_state;
+	unsigned int			wakeline_state;
+	unsigned int			control_state;
+	unsigned int			data_state;
+
+	/* state exposed to application */
+	struct cs_mmap_config_block	*mmap_cfg;
+
+	unsigned long			mmap_base;
+	unsigned long			mmap_size;
+
+	unsigned int			rx_slot;
+	unsigned int			tx_slot;
+
+	/* note: for security reasons, we do not trust the contents of
+	 * mmap_cfg, but instead duplicate the variables here */
+	unsigned int			buf_size;
+	unsigned int			rx_bufs;
+	unsigned int			tx_bufs;
+	unsigned int			rx_ptr_boundary;
+	unsigned int			rx_offsets[CS_MAX_BUFFERS];
+	unsigned int			tx_offsets[CS_MAX_BUFFERS];
+
+	/* size of aligned memory blocks */
+	unsigned int			slot_size;
+	unsigned int			flags;
+
+	struct list_head		cmdqueue;
+
+	struct hsi_msg			*data_rx_msg;
+	struct hsi_msg			*data_tx_msg;
+	wait_queue_head_t		datawait;
+
+	struct pm_qos_request           pm_qos_req;
+
+	spinlock_t			lock;
+};
+
+static struct cs_char cs_char_data;
+
+static void cs_hsi_read_on_control(struct cs_hsi_iface *hi);
+static void cs_hsi_read_on_data(struct cs_hsi_iface *hi);
+
+static inline void rx_ptr_shift_too_big(void)
+{
+	BUILD_BUG_ON((1LLU << RX_PTR_MAX_SHIFT) > UINT_MAX);
+}
+
+static void cs_notify(u32 message, struct list_head *head)
+{
+	struct char_queue *entry;
+
+	spin_lock(&cs_char_data.lock);
+
+	if (!cs_char_data.opened) {
+		spin_unlock(&cs_char_data.lock);
+		goto out;
+	}
+
+	entry = kmalloc(sizeof(*entry), GFP_ATOMIC);
+	if (!entry) {
+		dev_err(&cs_char_data.cl->device,
+			"Can't allocate new entry for the queue.\n");
+		spin_unlock(&cs_char_data.lock);
+		goto out;
+	}
+
+	entry->msg = message;
+	list_add_tail(&entry->list, head);
+
+	spin_unlock(&cs_char_data.lock);
+
+	wake_up_interruptible(&cs_char_data.wait);
+	kill_fasync(&cs_char_data.async_queue, SIGIO, POLL_IN);
+
+out:
+	return;
+}
+
+static u32 cs_pop_entry(struct list_head *head)
+{
+	struct char_queue *entry;
+	u32 data;
+
+	entry = list_entry(head->next, struct char_queue, list);
+	data = entry->msg;
+	list_del(&entry->list);
+	kfree(entry);
+
+	return data;
+}
+
+static void cs_notify_control(u32 message)
+{
+	cs_notify(message, &cs_char_data.chardev_queue);
+}
+
+static void cs_notify_data(u32 message, int maxlength)
+{
+	cs_notify(message, &cs_char_data.dataind_queue);
+
+	spin_lock(&cs_char_data.lock);
+	cs_char_data.dataind_pending++;
+	while (cs_char_data.dataind_pending > maxlength &&
+				!list_empty(&cs_char_data.dataind_queue)) {
+		dev_dbg(&cs_char_data.cl->device, "data notification "
+		"queue overrun (%u entries)\n", cs_char_data.dataind_pending);
+
+		cs_pop_entry(&cs_char_data.dataind_queue);
+		cs_char_data.dataind_pending--;
+	}
+	spin_unlock(&cs_char_data.lock);
+}
+
+static inline void cs_set_cmd(struct hsi_msg *msg, u32 cmd)
+{
+	u32 *data = sg_virt(msg->sgt.sgl);
+	*data = cmd;
+}
+
+static inline u32 cs_get_cmd(struct hsi_msg *msg)
+{
+	u32 *data = sg_virt(msg->sgt.sgl);
+	return *data;
+}
+
+static void cs_release_cmd(struct hsi_msg *msg)
+{
+	struct cs_hsi_iface *hi = msg->context;
+
+	list_add_tail(&msg->link, &hi->cmdqueue);
+}
+
+static void cs_cmd_destructor(struct hsi_msg *msg)
+{
+	struct cs_hsi_iface *hi = msg->context;
+
+	spin_lock(&hi->lock);
+
+	dev_dbg(&cs_char_data.cl->device, "control cmd destructor\n");
+
+	if (hi->iface_state != CS_STATE_CLOSED)
+		dev_err(&hi->cl->device, "Cmd flushed while driver active\n");
+
+	if (msg->ttype == HSI_MSG_READ)
+		hi->control_state &=
+			~(SSI_CHANNEL_STATE_POLL | SSI_CHANNEL_STATE_READING);
+	else if (msg->ttype == HSI_MSG_WRITE &&
+			hi->control_state & SSI_CHANNEL_STATE_WRITING)
+		hi->control_state &= ~SSI_CHANNEL_STATE_WRITING;
+
+	cs_release_cmd(msg);
+
+	spin_unlock(&hi->lock);
+}
+
+static struct hsi_msg *cs_claim_cmd(struct cs_hsi_iface* ssi)
+{
+	struct hsi_msg *msg;
+
+	BUG_ON(list_empty(&ssi->cmdqueue));
+
+	msg = list_first_entry(&ssi->cmdqueue, struct hsi_msg, link);
+	list_del(&msg->link);
+	msg->destructor = cs_cmd_destructor;
+
+	return msg;
+}
+
+static void cs_free_cmds(struct cs_hsi_iface *ssi)
+{
+	struct hsi_msg *msg, *tmp;
+
+	list_for_each_entry_safe(msg, tmp, &ssi->cmdqueue, link) {
+		list_del(&msg->link);
+		msg->destructor = NULL;
+		kfree(sg_virt(msg->sgt.sgl));
+		hsi_free_msg(msg);
+	}
+}
+
+static int cs_alloc_cmds(struct cs_hsi_iface *hi)
+{
+	struct hsi_msg *msg;
+	u32 *buf;
+	unsigned int i;
+
+	INIT_LIST_HEAD(&hi->cmdqueue);
+
+	for (i = 0; i < CS_MAX_CMDS; i++) {
+		msg = hsi_alloc_msg(1, GFP_KERNEL);
+		if (!msg)
+			goto out;
+		buf = kmalloc(sizeof(*buf), GFP_KERNEL);
+		if (!buf) {
+			hsi_free_msg(msg);
+			goto out;
+		}
+		sg_init_one(msg->sgt.sgl, buf, sizeof(*buf));
+		msg->channel = cs_char_data.channel_id_cmd;
+		msg->context = hi;
+		list_add_tail(&msg->link, &hi->cmdqueue);
+	}
+
+	return 0;
+
+out:
+	cs_free_cmds(hi);
+	return -ENOMEM;
+}
+
+static void cs_hsi_data_destructor(struct hsi_msg *msg)
+{
+	struct cs_hsi_iface *hi = msg->context;
+	const char *dir = (msg->ttype == HSI_MSG_READ) ? "TX" : "RX";
+
+	dev_dbg(&cs_char_data.cl->device, "Freeing data %s message\n", dir);
+
+	spin_lock(&hi->lock);
+	if (hi->iface_state != CS_STATE_CLOSED)
+		dev_err(&cs_char_data.cl->device,
+				"Data %s flush while device active\n", dir);
+	if (msg->ttype == HSI_MSG_READ)
+		hi->data_state &=
+			~(SSI_CHANNEL_STATE_POLL | SSI_CHANNEL_STATE_READING);
+	else
+		hi->data_state &= ~SSI_CHANNEL_STATE_WRITING;
+
+	msg->status = HSI_STATUS_COMPLETED;
+	if (unlikely(waitqueue_active(&hi->datawait)))
+		wake_up_interruptible(&hi->datawait);
+
+	spin_unlock(&hi->lock);
+}
+
+static int cs_hsi_alloc_data(struct cs_hsi_iface *hi)
+{
+	struct hsi_msg *txmsg, *rxmsg;
+	int res = 0;
+
+	rxmsg = hsi_alloc_msg(1, GFP_KERNEL);
+	if (!rxmsg) {
+		res = -ENOMEM;
+		goto out1;
+	}
+	rxmsg->channel = cs_char_data.channel_id_data;
+	rxmsg->destructor = cs_hsi_data_destructor;
+	rxmsg->context = hi;
+
+	txmsg = hsi_alloc_msg(1, GFP_KERNEL);
+	if (!txmsg) {
+		res = -ENOMEM;
+		goto out2;
+	}
+	txmsg->channel = cs_char_data.channel_id_data;
+	txmsg->destructor = cs_hsi_data_destructor;
+	txmsg->context = hi;
+
+	hi->data_rx_msg = rxmsg;
+	hi->data_tx_msg = txmsg;
+
+	return 0;
+
+out2:
+	hsi_free_msg(rxmsg);
+out1:
+	return res;
+}
+
+static void cs_hsi_free_data_msg(struct hsi_msg *msg)
+{
+	WARN_ON(msg->status != HSI_STATUS_COMPLETED &&
+					msg->status != HSI_STATUS_ERROR);
+	hsi_free_msg(msg);
+}
+
+static void cs_hsi_free_data(struct cs_hsi_iface *hi)
+{
+	cs_hsi_free_data_msg(hi->data_rx_msg);
+	cs_hsi_free_data_msg(hi->data_tx_msg);
+}
+
+static inline void __cs_hsi_error_pre(struct cs_hsi_iface *hi,
+					struct hsi_msg *msg, const char *info,
+					unsigned int *state)
+{
+	spin_lock(&hi->lock);
+	dev_err(&hi->cl->device, "HSI %s error, msg %d, state %u\n",
+		info, msg->status, *state);
+}
+
+static inline void __cs_hsi_error_post(struct cs_hsi_iface *hi)
+{
+	spin_unlock(&hi->lock);
+}
+
+static inline void __cs_hsi_error_read_bits(unsigned int *state)
+{
+	*state |= SSI_CHANNEL_STATE_ERROR;
+	*state &= ~(SSI_CHANNEL_STATE_READING | SSI_CHANNEL_STATE_POLL);
+}
+
+static inline void __cs_hsi_error_write_bits(unsigned int *state)
+{
+	*state |= SSI_CHANNEL_STATE_ERROR;
+	*state &= ~SSI_CHANNEL_STATE_WRITING;
+}
+
+static void cs_hsi_control_read_error(struct cs_hsi_iface *hi,
+							struct hsi_msg *msg)
+{
+	__cs_hsi_error_pre(hi, msg, "control read", &hi->control_state);
+	cs_release_cmd(msg);
+	__cs_hsi_error_read_bits(&hi->control_state);
+	__cs_hsi_error_post(hi);
+}
+
+static void cs_hsi_control_write_error(struct cs_hsi_iface *hi,
+							struct hsi_msg *msg)
+{
+	__cs_hsi_error_pre(hi, msg, "control write", &hi->control_state);
+	cs_release_cmd(msg);
+	__cs_hsi_error_write_bits(&hi->control_state);
+	__cs_hsi_error_post(hi);
+
+}
+
+static void cs_hsi_data_read_error(struct cs_hsi_iface *hi, struct hsi_msg *msg)
+{
+	__cs_hsi_error_pre(hi, msg, "data read", &hi->data_state);
+	__cs_hsi_error_read_bits(&hi->data_state);
+	__cs_hsi_error_post(hi);
+}
+
+static void cs_hsi_data_write_error(struct cs_hsi_iface *hi,
+							struct hsi_msg *msg)
+{
+	__cs_hsi_error_pre(hi, msg, "data write", &hi->data_state);
+	__cs_hsi_error_write_bits(&hi->data_state);
+	__cs_hsi_error_post(hi);
+}
+
+static void cs_hsi_read_on_control_complete(struct hsi_msg *msg)
+{
+	u32 cmd = cs_get_cmd(msg);
+	struct cs_hsi_iface *hi = msg->context;
+
+	spin_lock(&hi->lock);
+	hi->control_state &= ~SSI_CHANNEL_STATE_READING;
+	if (msg->status == HSI_STATUS_ERROR) {
+		dev_err(&hi->cl->device, "Control RX error detected\n");
+		cs_hsi_control_read_error(hi, msg);
+		spin_unlock(&hi->lock);
+		goto out;
+	}
+	dev_dbg(&hi->cl->device, "Read on control: %08X\n", cmd);
+	cs_release_cmd(msg);
+	if (hi->flags & CS_FEAT_TSTAMP_RX_CTRL) {
+		struct timespec *tstamp =
+			&hi->mmap_cfg->tstamp_rx_ctrl;
+		do_posix_clock_monotonic_gettime(tstamp);
+	}
+	spin_unlock(&hi->lock);
+
+	cs_notify_control(cmd);
+
+out:
+	cs_hsi_read_on_control(hi);
+}
+
+static void cs_hsi_peek_on_control_complete(struct hsi_msg *msg)
+{
+	struct cs_hsi_iface *hi = msg->context;
+	int ret;
+
+	if (msg->status == HSI_STATUS_ERROR) {
+		dev_err(&hi->cl->device, "Control peek RX error detected\n");
+		cs_hsi_control_read_error(hi, msg);
+		return;
+	}
+
+	WARN_ON(!(hi->control_state & SSI_CHANNEL_STATE_READING));
+
+	dev_dbg(&hi->cl->device, "Peek on control complete, reading\n");
+	msg->sgt.nents = 1;
+	msg->complete = cs_hsi_read_on_control_complete;
+	ret = hsi_async_read(hi->cl, msg);
+	if (ret)
+		cs_hsi_control_read_error(hi, msg);
+}
+
+static void cs_hsi_read_on_control(struct cs_hsi_iface *hi)
+{
+	struct hsi_msg *msg;
+	int ret;
+
+	spin_lock(&hi->lock);
+	if (hi->control_state & SSI_CHANNEL_STATE_READING) {
+		dev_err(&hi->cl->device, "Control read already pending (%d)\n",
+			hi->control_state);
+		spin_unlock(&hi->lock);
+		return;
+	}
+	if (hi->control_state & SSI_CHANNEL_STATE_ERROR) {
+		dev_err(&hi->cl->device, "Control read error (%d)\n",
+			hi->control_state);
+		spin_unlock(&hi->lock);
+		return;
+	}
+	hi->control_state |= SSI_CHANNEL_STATE_READING;
+	dev_dbg(&hi->cl->device, "Issuing RX on control\n");
+	msg = cs_claim_cmd(hi);
+	spin_unlock(&hi->lock);
+
+	msg->sgt.nents = 0;
+	msg->complete = cs_hsi_peek_on_control_complete;
+	ret = hsi_async_read(hi->cl, msg);
+	if (ret)
+		cs_hsi_control_read_error(hi, msg);
+}
+
+static void cs_hsi_write_on_control_complete(struct hsi_msg *msg)
+{
+	struct cs_hsi_iface *hi = msg->context;
+	if (msg->status == HSI_STATUS_COMPLETED) {
+		spin_lock(&hi->lock);
+		hi->control_state &= ~SSI_CHANNEL_STATE_WRITING;
+		cs_release_cmd(msg);
+		spin_unlock(&hi->lock);
+	} else if (msg->status == HSI_STATUS_ERROR) {
+		cs_hsi_control_write_error(hi, msg);
+	} else {
+		dev_err(&hi->cl->device,
+			"unexpected status in control write callback %d\n",
+			msg->status);
+	}
+}
+
+static int cs_hsi_write_on_control(struct cs_hsi_iface *hi, u32 message)
+{
+	struct hsi_msg *msg;
+	int ret;
+
+	spin_lock(&hi->lock);
+	if (hi->control_state & SSI_CHANNEL_STATE_ERROR) {
+		spin_unlock(&hi->lock);
+		return -EIO;
+	}
+	if (hi->control_state & SSI_CHANNEL_STATE_WRITING) {
+		dev_err(&hi->cl->device,
+			"Write still pending on control channel.\n");
+		spin_unlock(&hi->lock);
+		return -EBUSY;
+	}
+	hi->control_state |= SSI_CHANNEL_STATE_WRITING;
+	msg = cs_claim_cmd(hi);
+	spin_unlock(&hi->lock);
+
+	cs_set_cmd(msg, message);
+	msg->sgt.nents = 1;
+	msg->complete = cs_hsi_write_on_control_complete;
+	dev_dbg(&hi->cl->device,
+		"Sending control message %08X\n", message);
+	ret = hsi_async_write(hi->cl, msg);
+	if (ret) {
+		dev_err(&hi->cl->device,
+			"async_write failed with %d\n", ret);
+		cs_hsi_control_write_error(hi, msg);
+	}
+
+	/*
+	 * Make sure control read is always pending when issuing
+	 * new control writes. This is needed as the controller
+	 * may flush our messages if e.g. the peer device reboots
+	 * unexpectedly (and we cannot directly resubmit a new read from
+	 * the message destructor; see cs_cmd_destructor()).
+	 */
+	if (!(hi->control_state & SSI_CHANNEL_STATE_READING)) {
+		dev_err(&hi->cl->device, "Restarting control reads\n");
+		cs_hsi_read_on_control(hi);
+	}
+
+	return 0;
+}
+
+static void cs_hsi_read_on_data_complete(struct hsi_msg *msg)
+{
+	struct cs_hsi_iface *hi = msg->context;
+	u32 payload;
+
+	if (unlikely(msg->status == HSI_STATUS_ERROR)) {
+		cs_hsi_data_read_error(hi, msg);
+		return;
+	}
+
+	spin_lock(&hi->lock);
+	WARN_ON(!(hi->data_state & SSI_CHANNEL_STATE_READING));
+	hi->data_state &= ~SSI_CHANNEL_STATE_READING;
+	payload = CS_RX_DATA_RECEIVED;
+	payload |= hi->rx_slot;
+	hi->rx_slot++;
+	hi->rx_slot %= hi->rx_ptr_boundary;
+	/* expose current rx ptr in mmap area */
+	hi->mmap_cfg->rx_ptr = hi->rx_slot;
+	if (unlikely(waitqueue_active(&hi->datawait)))
+		wake_up_interruptible(&hi->datawait);
+	spin_unlock(&hi->lock);
+
+	cs_notify_data(payload, hi->rx_bufs);
+	cs_hsi_read_on_data(hi);
+}
+
+static void cs_hsi_peek_on_data_complete(struct hsi_msg *msg)
+{
+	struct cs_hsi_iface *hi = msg->context;
+	u32 *address;
+	int ret;
+
+	if (unlikely(msg->status == HSI_STATUS_ERROR)) {
+		cs_hsi_data_read_error(hi, msg);
+		return;
+	}
+	if (unlikely(hi->iface_state != CS_STATE_CONFIGURED)) {
+		dev_err(&hi->cl->device, "Data received in invalid state\n");
+		cs_hsi_data_read_error(hi, msg);
+		return;
+	}
+
+	spin_lock(&hi->lock);
+	WARN_ON(!(hi->data_state & SSI_CHANNEL_STATE_POLL));
+	hi->data_state &= ~SSI_CHANNEL_STATE_POLL;
+	hi->data_state |= SSI_CHANNEL_STATE_READING;
+	spin_unlock(&hi->lock);
+
+	address = (u32 *)(hi->mmap_base +
+				hi->rx_offsets[hi->rx_slot % hi->rx_bufs]);
+	sg_init_one(msg->sgt.sgl, address, hi->buf_size);
+	msg->sgt.nents = 1;
+	msg->complete = cs_hsi_read_on_data_complete;
+	ret = hsi_async_read(hi->cl, msg);
+	if (ret)
+		cs_hsi_data_read_error(hi, msg);
+}
+
+/*
+ * Read/write transaction is ongoing. Returns false if in
+ * SSI_CHANNEL_STATE_POLL state.
+ */
+static inline int cs_state_xfer_active(unsigned int state)
+{
+	return (state & SSI_CHANNEL_STATE_WRITING) ||
+		(state & SSI_CHANNEL_STATE_READING);
+}
+
+/*
+ * No pending read/writes
+ */
+static inline int cs_state_idle(unsigned int state)
+{
+	return !(state & ~SSI_CHANNEL_STATE_ERROR);
+}
+
+static void cs_hsi_read_on_data(struct cs_hsi_iface *hi)
+{
+	struct hsi_msg *rxmsg;
+	int ret;
+
+	spin_lock(&hi->lock);
+	if (hi->data_state &
+		(SSI_CHANNEL_STATE_READING | SSI_CHANNEL_STATE_POLL)) {
+		dev_dbg(&hi->cl->device, "Data read already pending (%u)\n",
+			hi->data_state);
+		spin_unlock(&hi->lock);
+		return;
+	}
+	hi->data_state |= SSI_CHANNEL_STATE_POLL;
+	spin_unlock(&hi->lock);
+
+	rxmsg = hi->data_rx_msg;
+	sg_init_one(rxmsg->sgt.sgl, (void *)hi->mmap_base, 0);
+	rxmsg->sgt.nents = 0;
+	rxmsg->complete = cs_hsi_peek_on_data_complete;
+
+	ret = hsi_async_read(hi->cl, rxmsg);
+	if (ret)
+		cs_hsi_data_read_error(hi, rxmsg);
+}
+
+static void cs_hsi_write_on_data_complete(struct hsi_msg *msg)
+{
+	struct cs_hsi_iface *hi = msg->context;
+
+	if (msg->status == HSI_STATUS_COMPLETED) {
+		spin_lock(&hi->lock);
+		hi->data_state &= ~SSI_CHANNEL_STATE_WRITING;
+		if (unlikely(waitqueue_active(&hi->datawait)))
+			wake_up_interruptible(&hi->datawait);
+		spin_unlock(&hi->lock);
+	} else {
+		cs_hsi_data_write_error(hi, msg);
+	}
+}
+
+static int cs_hsi_write_on_data(struct cs_hsi_iface *hi, unsigned int slot)
+{
+	u32 *address;
+	struct hsi_msg *txmsg;
+	int ret;
+
+	spin_lock(&hi->lock);
+	if (hi->iface_state != CS_STATE_CONFIGURED) {
+		dev_err(&hi->cl->device, "Not configured, aborting\n");
+		ret = -EINVAL;
+		goto error;
+	}
+	if (hi->data_state & SSI_CHANNEL_STATE_ERROR) {
+		dev_err(&hi->cl->device, "HSI error, aborting\n");
+		ret = -EIO;
+		goto error;
+	}
+	if (hi->data_state & SSI_CHANNEL_STATE_WRITING) {
+		dev_err(&hi->cl->device, "Write pending on data channel.\n");
+		ret = -EBUSY;
+		goto error;
+	}
+	hi->data_state |= SSI_CHANNEL_STATE_WRITING;
+	spin_unlock(&hi->lock);
+
+	hi->tx_slot = slot;
+	address = (u32 *)(hi->mmap_base + hi->tx_offsets[hi->tx_slot]);
+	txmsg = hi->data_tx_msg;
+	sg_init_one(txmsg->sgt.sgl, address, hi->buf_size);
+	txmsg->complete = cs_hsi_write_on_data_complete;
+	ret = hsi_async_write(hi->cl, txmsg);
+	if (ret)
+		cs_hsi_data_write_error(hi, txmsg);
+
+	return ret;
+
+error:
+	spin_unlock(&hi->lock);
+	if (ret == -EIO)
+		cs_hsi_data_write_error(hi, hi->data_tx_msg);
+
+	return ret;
+}
+
+static unsigned int cs_hsi_get_state(struct cs_hsi_iface *hi)
+{
+	return hi->iface_state;
+}
+
+static int cs_hsi_command(struct cs_hsi_iface *hi, u32 cmd)
+{
+	int ret = 0;
+
+	local_bh_disable();
+	switch (cmd & TARGET_MASK) {
+	case TARGET_REMOTE:
+		ret = cs_hsi_write_on_control(hi, cmd);
+		break;
+	case TARGET_LOCAL:
+		if ((cmd & CS_CMD_MASK) == CS_TX_DATA_READY)
+			ret = cs_hsi_write_on_data(hi, cmd & CS_PARAM_MASK);
+		else
+			ret = -EINVAL;
+		break;
+	default:
+		ret = -EINVAL;
+		break;
+	}
+	local_bh_enable();
+
+	return ret;
+}
+
+static void cs_hsi_set_wakeline(struct cs_hsi_iface *hi, bool new_state)
+{
+	int change = 0;
+
+	spin_lock_bh(&hi->lock);
+	if (hi->wakeline_state != new_state) {
+		hi->wakeline_state = new_state;
+		change = 1;
+		dev_dbg(&hi->cl->device, "setting wake line to %d (%p)\n",
+			new_state, hi->cl);
+	}
+	spin_unlock_bh(&hi->lock);
+
+	if (change) {
+		if (new_state)
+			ssip_slave_start_tx(hi->master);
+		else
+			ssip_slave_stop_tx(hi->master);
+	}
+
+	dev_dbg(&hi->cl->device, "wake line set to %d (%p)\n",
+		new_state, hi->cl);
+}
+
+static void set_buffer_sizes(struct cs_hsi_iface *hi, int rx_bufs, int tx_bufs)
+{
+	hi->rx_bufs = rx_bufs;
+	hi->tx_bufs = tx_bufs;
+	hi->mmap_cfg->rx_bufs = rx_bufs;
+	hi->mmap_cfg->tx_bufs = tx_bufs;
+
+	if (hi->flags & CS_FEAT_ROLLING_RX_COUNTER) {
+		/*
+		 * For more robust overrun detection, let the rx
+		 * pointer run in range 0..'boundary-1'. Boundary
+		 * is a multiple of rx_bufs, and limited in max size
+		 * by RX_PTR_MAX_SHIFT to allow for fast ptr-diff
+		 * calculation.
+		 */
+		hi->rx_ptr_boundary = (rx_bufs << RX_PTR_BOUNDARY_SHIFT);
+		hi->mmap_cfg->rx_ptr_boundary = hi->rx_ptr_boundary;
+	} else {
+		hi->rx_ptr_boundary = hi->rx_bufs;
+	}
+}
+
+static int check_buf_params(struct cs_hsi_iface *hi,
+					const struct cs_buffer_config *buf_cfg)
+{
+	size_t buf_size_aligned = L1_CACHE_ALIGN(buf_cfg->buf_size) *
+					(buf_cfg->rx_bufs + buf_cfg->tx_bufs);
+	size_t ctrl_size_aligned = L1_CACHE_ALIGN(sizeof(*hi->mmap_cfg));
+	int r = 0;
+
+	if (buf_cfg->rx_bufs > CS_MAX_BUFFERS ||
+					buf_cfg->tx_bufs > CS_MAX_BUFFERS) {
+		r = -EINVAL;
+	} else if ((buf_size_aligned + ctrl_size_aligned) >= hi->mmap_size) {
+		dev_err(&hi->cl->device, "No space for the requested buffer "
+			"configuration\n");
+		r = -ENOBUFS;
+	}
+
+	return r;
+}
+
+/**
+ * Block until pending data transfers have completed.
+ */
+static int cs_hsi_data_sync(struct cs_hsi_iface *hi)
+{
+	int r = 0;
+
+	spin_lock_bh(&hi->lock);
+
+	if (!cs_state_xfer_active(hi->data_state)) {
+		dev_dbg(&hi->cl->device, "hsi_data_sync break, idle\n");
+		goto out;
+	}
+
+	for (;;) {
+		int s;
+		DEFINE_WAIT(wait);
+		if (!cs_state_xfer_active(hi->data_state))
+			goto out;
+		if (signal_pending(current)) {
+			r = -ERESTARTSYS;
+			goto out;
+		}
+		/**
+		 * prepare_to_wait must be called with hi->lock held
+		 * so that callbacks can check for waitqueue_active()
+		 */
+		prepare_to_wait(&hi->datawait, &wait, TASK_INTERRUPTIBLE);
+		spin_unlock_bh(&hi->lock);
+		s = schedule_timeout(
+			msecs_to_jiffies(CS_HSI_TRANSFER_TIMEOUT_MS));
+		spin_lock_bh(&hi->lock);
+		finish_wait(&hi->datawait, &wait);
+		if (!s) {
+			dev_dbg(&hi->cl->device,
+				"hsi_data_sync timeout after %d ms\n",
+				CS_HSI_TRANSFER_TIMEOUT_MS);
+			r = -EIO;
+			goto out;
+		}
+	}
+
+out:
+	spin_unlock_bh(&hi->lock);
+	dev_dbg(&hi->cl->device, "hsi_data_sync done with res %d\n", r);
+
+	return r;
+}
+
+static void cs_hsi_data_enable(struct cs_hsi_iface *hi,
+					struct cs_buffer_config *buf_cfg)
+{
+	unsigned int data_start, i;
+
+	BUG_ON(hi->buf_size == 0);
+
+	set_buffer_sizes(hi, buf_cfg->rx_bufs, buf_cfg->tx_bufs);
+
+	hi->slot_size = L1_CACHE_ALIGN(hi->buf_size);
+	dev_dbg(&hi->cl->device,
+			"setting slot size to %u, buf size %u, align %u\n",
+			hi->slot_size, hi->buf_size, L1_CACHE_BYTES);
+
+	data_start = L1_CACHE_ALIGN(sizeof(*hi->mmap_cfg));
+	dev_dbg(&hi->cl->device,
+			"setting data start at %u, cfg block %u, align %u\n",
+			data_start, sizeof(*hi->mmap_cfg), L1_CACHE_BYTES);
+
+	for (i = 0; i < hi->mmap_cfg->rx_bufs; i++) {
+		hi->rx_offsets[i] = data_start + i * hi->slot_size;
+		hi->mmap_cfg->rx_offsets[i] = hi->rx_offsets[i];
+		dev_dbg(&hi->cl->device, "DL buf #%u at %u\n",
+					i, hi->rx_offsets[i]);
+	}
+	for (i = 0; i < hi->mmap_cfg->tx_bufs; i++) {
+		hi->tx_offsets[i] = data_start +
+			(i + hi->mmap_cfg->rx_bufs) * hi->slot_size;
+		hi->mmap_cfg->tx_offsets[i] = hi->tx_offsets[i];
+		dev_dbg(&hi->cl->device, "UL buf #%u at %u\n",
+					i, hi->rx_offsets[i]);
+	}
+
+	hi->iface_state = CS_STATE_CONFIGURED;
+}
+
+static void cs_hsi_data_disable(struct cs_hsi_iface *hi, int old_state)
+{
+	if (old_state == CS_STATE_CONFIGURED) {
+		dev_dbg(&hi->cl->device,
+			"closing data channel with slot size 0\n");
+		hi->iface_state = CS_STATE_OPENED;
+	}
+}
+
+static int cs_hsi_buf_config(struct cs_hsi_iface *hi,
+					struct cs_buffer_config *buf_cfg)
+{
+	int r = 0;
+	unsigned int old_state = hi->iface_state;
+
+	spin_lock_bh(&hi->lock);
+	/* Prevent new transactions during buffer reconfig */
+	if (old_state == CS_STATE_CONFIGURED)
+		hi->iface_state = CS_STATE_OPENED;
+	spin_unlock_bh(&hi->lock);
+
+	/*
+	 * make sure that no non-zero data reads are ongoing before
+	 * proceeding to change the buffer layout
+	 */
+	r = cs_hsi_data_sync(hi);
+	if (r < 0)
+		return r;
+
+	WARN_ON(cs_state_xfer_active(hi->data_state));
+
+	spin_lock_bh(&hi->lock);
+	r = check_buf_params(hi, buf_cfg);
+	if (r < 0)
+		goto error;
+
+	hi->buf_size = buf_cfg->buf_size;
+	hi->mmap_cfg->buf_size = hi->buf_size;
+	hi->flags = buf_cfg->flags;
+
+	hi->rx_slot = 0;
+	hi->tx_slot = 0;
+	hi->slot_size = 0;
+
+	if (hi->buf_size)
+		cs_hsi_data_enable(hi, buf_cfg);
+	else
+		cs_hsi_data_disable(hi, old_state);
+
+	spin_unlock_bh(&hi->lock);
+
+	if (old_state != hi->iface_state) {
+		if (hi->iface_state == CS_STATE_CONFIGURED) {
+			pm_qos_add_request(&hi->pm_qos_req,
+				PM_QOS_CPU_DMA_LATENCY,
+				CS_QOS_LATENCY_FOR_DATA_USEC);
+			local_bh_disable();
+			cs_hsi_read_on_data(hi);
+			local_bh_enable();
+		} else if (old_state == CS_STATE_CONFIGURED) {
+			pm_qos_remove_request(&hi->pm_qos_req);
+		}
+	}
+	return r;
+
+error:
+	spin_unlock_bh(&hi->lock);
+	return r;
+}
+
+static int cs_hsi_start(struct cs_hsi_iface **hi, struct hsi_client *cl,
+			unsigned long mmap_base, unsigned long mmap_size)
+{
+	int err = 0;
+	struct cs_hsi_iface *hsi_if = kzalloc(sizeof(*hsi_if), GFP_KERNEL);
+
+	dev_dbg(&cl->device, "cs_hsi_start\n");
+
+	if (!hsi_if) {
+		err = -ENOMEM;
+		goto leave0;
+	}
+	spin_lock_init(&hsi_if->lock);
+	hsi_if->cl = cl;
+	hsi_if->iface_state = CS_STATE_CLOSED;
+	hsi_if->mmap_cfg = (struct cs_mmap_config_block *)mmap_base;
+	hsi_if->mmap_base = mmap_base;
+	hsi_if->mmap_size = mmap_size;
+	memset(hsi_if->mmap_cfg, 0, sizeof(*hsi_if->mmap_cfg));
+	init_waitqueue_head(&hsi_if->datawait);
+	err = cs_alloc_cmds(hsi_if);
+	if (err < 0) {
+		dev_err(&cl->device, "Unable to alloc HSI messages\n");
+		goto leave1;
+	}
+	err = cs_hsi_alloc_data(hsi_if);
+	if (err < 0) {
+		dev_err(&cl->device, "Unable to alloc HSI messages for data\n");
+		goto leave2;
+	}
+	err = hsi_claim_port(cl, 1);
+	if (err < 0) {
+		dev_err(&cl->device,
+				"Could not open, HSI port already claimed\n");
+		goto leave3;
+	}
+	hsi_if->master = ssip_slave_get_master(cl);
+	if (IS_ERR(hsi_if->master)) {
+		err = PTR_ERR(hsi_if->master);
+		dev_err(&cl->device, "Could not get HSI master client\n");
+		goto leave4;
+	}
+	if (!ssip_slave_running(hsi_if->master)) {
+		err = -ENODEV;
+		dev_err(&cl->device,
+				"HSI port not initialized\n");
+		goto leave4;
+	}
+
+	hsi_if->iface_state = CS_STATE_OPENED;
+	local_bh_disable();
+	cs_hsi_read_on_control(hsi_if);
+	local_bh_enable();
+
+	dev_dbg(&cl->device, "cs_hsi_start...done\n");
+
+	BUG_ON(!hi);
+	*hi = hsi_if;
+
+	return 0;
+
+leave4:
+	hsi_release_port(cl);
+leave3:
+	cs_hsi_free_data(hsi_if);
+leave2:
+	cs_free_cmds(hsi_if);
+leave1:
+	kfree(hsi_if);
+leave0:
+	dev_dbg(&cl->device, "cs_hsi_start...done/error\n\n");
+
+	return err;
+}
+
+static void cs_hsi_stop(struct cs_hsi_iface *hi)
+{
+	dev_dbg(&hi->cl->device, "cs_hsi_stop\n");
+	cs_hsi_set_wakeline(hi, 0);
+	ssip_slave_put_master(hi->master);
+
+	/* hsi_release_port() needs to be called with CS_STATE_CLOSED */
+	hi->iface_state = CS_STATE_CLOSED;
+	hsi_release_port(hi->cl);
+
+	/*
+	 * hsi_release_port() should flush out all the pending
+	 * messages, so cs_state_idle() should be true for both
+	 * control and data channels.
+	 */
+	WARN_ON(!cs_state_idle(hi->control_state));
+	WARN_ON(!cs_state_idle(hi->data_state));
+
+	if (pm_qos_request_active(&hi->pm_qos_req))
+		pm_qos_remove_request(&hi->pm_qos_req);
+
+	spin_lock_bh(&hi->lock);
+	cs_hsi_free_data(hi);
+	cs_free_cmds(hi);
+	spin_unlock_bh(&hi->lock);
+	kfree(hi);
+}
+
+static int cs_char_vma_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
+{
+	struct cs_char *csdata = vma->vm_private_data;
+	struct page *page;
+
+	page = virt_to_page(csdata->mmap_base);
+	get_page(page);
+	vmf->page = page;
+
+	return 0;
+}
+
+static struct vm_operations_struct cs_char_vm_ops = {
+	.fault	= cs_char_vma_fault,
+};
+
+static int cs_char_fasync(int fd, struct file *file, int on)
+{
+	struct cs_char *csdata = file->private_data;
+
+	if (fasync_helper(fd, file, on, &csdata->async_queue) < 0)
+		return -EIO;
+
+	return 0;
+}
+
+static unsigned int cs_char_poll(struct file *file, poll_table *wait)
+{
+	struct cs_char *csdata = file->private_data;
+	unsigned int ret = 0;
+
+	poll_wait(file, &cs_char_data.wait, wait);
+	spin_lock_bh(&csdata->lock);
+	if (!list_empty(&csdata->chardev_queue))
+		ret = POLLIN | POLLRDNORM;
+	else if (!list_empty(&csdata->dataind_queue))
+		ret = POLLIN | POLLRDNORM;
+	spin_unlock_bh(&csdata->lock);
+
+	return ret;
+}
+
+static ssize_t cs_char_read(struct file *file, char __user *buf, size_t count,
+								loff_t *unused)
+{
+	struct cs_char *csdata = file->private_data;
+	u32 data;
+	ssize_t retval;
+
+	if (count < sizeof(data))
+		return -EINVAL;
+
+	for (;;) {
+		DEFINE_WAIT(wait);
+
+		spin_lock_bh(&csdata->lock);
+		if (!list_empty(&csdata->chardev_queue)) {
+			data = cs_pop_entry(&csdata->chardev_queue);
+		} else if (!list_empty(&csdata->dataind_queue)) {
+			data = cs_pop_entry(&csdata->dataind_queue);
+			csdata->dataind_pending--;
+		} else {
+			data = 0;
+		}
+		spin_unlock_bh(&csdata->lock);
+
+		if (data)
+			break;
+		if (file->f_flags & O_NONBLOCK) {
+			retval = -EAGAIN;
+			goto out;
+		} else if (signal_pending(current)) {
+			retval = -ERESTARTSYS;
+			goto out;
+		}
+		prepare_to_wait_exclusive(&csdata->wait, &wait,
+						TASK_INTERRUPTIBLE);
+		schedule();
+		finish_wait(&csdata->wait, &wait);
+	}
+
+	retval = put_user(data, (u32 __user *)buf);
+	if (!retval)
+		retval = sizeof(data);
+
+out:
+	return retval;
+}
+
+static ssize_t cs_char_write(struct file *file, const char __user *buf,
+						size_t count, loff_t *unused)
+{
+	struct cs_char *csdata = file->private_data;
+	u32 data;
+	int err;
+	ssize_t	retval;
+
+	if (count < sizeof(data))
+		return -EINVAL;
+
+	if (get_user(data, (u32 __user *)buf))
+		retval = -EFAULT;
+	else
+		retval = count;
+
+	err = cs_hsi_command(csdata->hi, data);
+	if (err < 0)
+		retval = err;
+
+	return retval;
+}
+
+static long cs_char_ioctl(struct file *file, unsigned int cmd,
+				unsigned long arg)
+{
+	struct cs_char *csdata = file->private_data;
+	int r = 0;
+
+	switch (cmd) {
+	case CS_GET_STATE: {
+		unsigned int state;
+
+		state = cs_hsi_get_state(csdata->hi);
+		if (copy_to_user((void __user *)arg, &state, sizeof(state)))
+			r = -EFAULT;
+
+		break;
+	}
+	case CS_SET_WAKELINE: {
+		unsigned int state;
+
+		if (copy_from_user(&state, (void __user *)arg, sizeof(state))) {
+			r = -EFAULT;
+			break;
+		}
+
+		if (state > 1) {
+			r = -EINVAL;
+			break;
+		}
+
+		cs_hsi_set_wakeline(csdata->hi, !!state);
+
+		break;
+	}
+	case CS_GET_IF_VERSION: {
+		unsigned int ifver = CS_IF_VERSION;
+
+		if (copy_to_user((void __user *)arg, &ifver, sizeof(ifver)))
+			r = -EFAULT;
+
+		break;
+	}
+	case CS_CONFIG_BUFS: {
+		struct cs_buffer_config buf_cfg;
+
+		if (copy_from_user(&buf_cfg, (void __user *)arg,
+							sizeof(buf_cfg)))
+			r = -EFAULT;
+		else
+			r = cs_hsi_buf_config(csdata->hi, &buf_cfg);
+
+		break;
+	}
+	default:
+		r = -ENOTTY;
+		break;
+	}
+
+	return r;
+}
+
+static int cs_char_mmap(struct file *file, struct vm_area_struct *vma)
+{
+	if (vma->vm_end < vma->vm_start)
+		return -EINVAL;
+
+	if (((vma->vm_end - vma->vm_start) >> PAGE_SHIFT) != 1)
+		return -EINVAL;
+
+	vma->vm_flags |= VM_IO | VM_DONTDUMP | VM_DONTEXPAND;
+	vma->vm_ops = &cs_char_vm_ops;
+	vma->vm_private_data = file->private_data;
+
+	return 0;
+}
+
+static int cs_char_open(struct inode *unused, struct file *file)
+{
+	int ret = 0;
+	unsigned long p;
+
+	spin_lock_bh(&cs_char_data.lock);
+	if (cs_char_data.opened) {
+		ret = -EBUSY;
+		spin_unlock_bh(&cs_char_data.lock);
+		goto out1;
+	}
+	cs_char_data.opened = 1;
+	cs_char_data.dataind_pending = 0;
+	spin_unlock_bh(&cs_char_data.lock);
+
+	p = get_zeroed_page(GFP_KERNEL);
+	if (!p) {
+		ret = -ENOMEM;
+		goto out2;
+	}
+
+	ret = cs_hsi_start(&cs_char_data.hi, cs_char_data.cl, p, CS_MMAP_SIZE);
+	if (ret) {
+		dev_err(&cs_char_data.cl->device, "Unable to initialize HSI\n");
+		goto out3;
+	}
+
+	/* these are only used in release so lock not needed */
+	cs_char_data.mmap_base = p;
+	cs_char_data.mmap_size = CS_MMAP_SIZE;
+
+	file->private_data = &cs_char_data;
+
+	return 0;
+
+out3:
+	free_page(p);
+out2:
+	spin_lock_bh(&cs_char_data.lock);
+	cs_char_data.opened = 0;
+	spin_unlock_bh(&cs_char_data.lock);
+out1:
+	return ret;
+}
+
+static void cs_free_char_queue(struct list_head *head)
+{
+	struct char_queue *entry;
+	struct list_head *cursor, *next;
+
+	if (!list_empty(head)) {
+		list_for_each_safe(cursor, next, head) {
+			entry = list_entry(cursor, struct char_queue, list);
+			list_del(&entry->list);
+			kfree(entry);
+		}
+	}
+
+}
+
+static int cs_char_release(struct inode *unused, struct file *file)
+{
+	struct cs_char *csdata = file->private_data;
+
+	cs_hsi_stop(csdata->hi);
+	spin_lock_bh(&csdata->lock);
+	csdata->hi = NULL;
+	free_page(csdata->mmap_base);
+	cs_free_char_queue(&csdata->chardev_queue);
+	cs_free_char_queue(&csdata->dataind_queue);
+	csdata->opened = 0;
+	spin_unlock_bh(&csdata->lock);
+
+	return 0;
+}
+
+static const struct file_operations cs_char_fops = {
+	.owner		= THIS_MODULE,
+	.read		= cs_char_read,
+	.write		= cs_char_write,
+	.poll		= cs_char_poll,
+	.unlocked_ioctl	= cs_char_ioctl,
+	.mmap		= cs_char_mmap,
+	.open		= cs_char_open,
+	.release	= cs_char_release,
+	.fasync		= cs_char_fasync,
+};
+
+static struct miscdevice cs_char_miscdev = {
+	.minor	= MISC_DYNAMIC_MINOR,
+	.name	= "cmt_speech",
+	.fops	= &cs_char_fops
+};
+
+static int cs_hsi_client_probe(struct device *dev)
+{
+	int err = 0;
+	struct hsi_client *cl = to_hsi_client(dev);
+
+	dev_dbg(dev, "hsi_client_probe\n");
+	init_waitqueue_head(&cs_char_data.wait);
+	spin_lock_init(&cs_char_data.lock);
+	cs_char_data.opened = 0;
+	cs_char_data.cl = cl;
+	cs_char_data.hi = NULL;
+	INIT_LIST_HEAD(&cs_char_data.chardev_queue);
+	INIT_LIST_HEAD(&cs_char_data.dataind_queue);
+
+	cs_char_data.channel_id_cmd = hsi_get_channel_id_by_name(cl,
+		"speech-control");
+	if (cs_char_data.channel_id_cmd < 0) {
+		err = cs_char_data.channel_id_cmd;
+		dev_err(dev, "Could not get cmd channel (%d)\n", err);
+		return err;
+	}
+
+	cs_char_data.channel_id_data = hsi_get_channel_id_by_name(cl,
+		"speech-data");
+	if (cs_char_data.channel_id_data < 0) {
+		err = cs_char_data.channel_id_data;
+		dev_err(dev, "Could not get data channel (%d)\n", err);
+		return err;
+	}
+
+	err = misc_register(&cs_char_miscdev);
+	if (err)
+		dev_err(dev, "Failed to register: %d\n", err);
+
+	return err;
+}
+
+static int cs_hsi_client_remove(struct device *dev)
+{
+	struct cs_hsi_iface *hi;
+
+	dev_dbg(dev, "hsi_client_remove\n");
+	misc_deregister(&cs_char_miscdev);
+	spin_lock_bh(&cs_char_data.lock);
+	hi = cs_char_data.hi;
+	cs_char_data.hi = NULL;
+	spin_unlock_bh(&cs_char_data.lock);
+	if (hi)
+		cs_hsi_stop(hi);
+
+	return 0;
+}
+
+static struct hsi_client_driver cs_hsi_driver = {
+	.driver = {
+		.name	= "cmt-speech",
+		.owner	= THIS_MODULE,
+		.probe	= cs_hsi_client_probe,
+		.remove	= cs_hsi_client_remove,
+	},
+};
+
+static int __init cs_char_init(void)
+{
+	pr_info("CMT speech driver added\n");
+	return hsi_register_client_driver(&cs_hsi_driver);
+}
+module_init(cs_char_init);
+
+static void __exit cs_char_exit(void)
+{
+	hsi_unregister_client_driver(&cs_hsi_driver);
+	pr_info("CMT speech driver removed\n");
+}
+module_exit(cs_char_exit);
+
+MODULE_ALIAS("hsi:cmt-speech");
+MODULE_AUTHOR("Kai Vehmanen <kai.vehmanen@nokia.com>");
+MODULE_AUTHOR("Peter Ujfalusi <peter.ujfalusi@nokia.com>");
+MODULE_DESCRIPTION("CMT speech driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/hsi/clients/nokia-modem.c b/drivers/hsi/clients/nokia-modem.c
index eb4dc63..bbb1923 100644
--- a/drivers/hsi/clients/nokia-modem.c
+++ b/drivers/hsi/clients/nokia-modem.c
@@ -46,6 +46,7 @@ struct nokia_modem_device {
 	struct nokia_modem_gpio	*gpios;
 	int			gpio_amount;
 	struct hsi_client	*ssi_protocol;
+	struct hsi_client	*cmt_speech;
 };
 
 static void do_nokia_modem_rst_ind_tasklet(unsigned long data)
@@ -149,6 +150,7 @@ static int nokia_modem_probe(struct device *dev)
 	struct hsi_port *port = hsi_get_port(cl);
 	int irq, pflags, err;
 	struct hsi_board_info ssip;
+	struct hsi_board_info cmtspeech;
 
 	np = dev->of_node;
 	if (!np) {
@@ -200,6 +202,7 @@ static int nokia_modem_probe(struct device *dev)
 	modem->ssi_protocol = hsi_new_client(port, &ssip);
 	if (!modem->ssi_protocol) {
 		dev_err(dev, "Could not register ssi-protocol device\n");
+		err = -ENOMEM;
 		goto error2;
 	}
 
@@ -213,12 +216,35 @@ static int nokia_modem_probe(struct device *dev)
 		goto error3;
 	}
 
-	/* TODO: register cmt-speech hsi client */
+	cmtspeech.name = "cmt-speech";
+	cmtspeech.tx_cfg = cl->tx_cfg;
+	cmtspeech.rx_cfg = cl->rx_cfg;
+	cmtspeech.platform_data = NULL;
+	cmtspeech.archdata = NULL;
+
+	modem->cmt_speech = hsi_new_client(port, &cmtspeech);
+	if (!modem->cmt_speech) {
+		dev_err(dev, "Could not register cmt-speech device\n");
+		err = -ENOMEM;
+		goto error3;
+	}
+
+	err = device_attach(&modem->cmt_speech->device);
+	if (err == 0) {
+		dev_err(dev, "Missing cmt-speech driver\n");
+		err = -EPROBE_DEFER;
+		goto error4;
+	} else if (err < 0) {
+		dev_err(dev, "Could not load cmt-speech driver (%d)\n", err);
+		goto error4;
+	}
 
 	dev_info(dev, "Registered Nokia HSI modem\n");
 
 	return 0;
 
+error4:
+	hsi_remove_client(&modem->cmt_speech->device, NULL);
 error3:
 	hsi_remove_client(&modem->ssi_protocol->device, NULL);
 error2:
@@ -237,6 +263,11 @@ static int nokia_modem_remove(struct device *dev)
 	if (!modem)
 		return 0;
 
+	if (modem->cmt_speech) {
+		hsi_remove_client(&modem->cmt_speech->device, NULL);
+		modem->cmt_speech = NULL;
+	}
+
 	if (modem->ssi_protocol) {
 		hsi_remove_client(&modem->ssi_protocol->device, NULL);
 		modem->ssi_protocol = NULL;
diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
index 110fade..25d9e72 100644
--- a/drivers/hwmon/Kconfig
+++ b/drivers/hwmon/Kconfig
@@ -510,6 +510,7 @@ config SENSORS_G762
 config SENSORS_GPIO_FAN
 	tristate "GPIO fan"
 	depends on GPIOLIB
+	depends on THERMAL || THERMAL=n
 	help
 	  If you say yes here you get support for fans connected to GPIO lines.
 
@@ -599,8 +600,8 @@ config SENSORS_IT87
 	help
 	  If you say yes here you get support for ITE IT8705F, IT8712F,
 	  IT8716F, IT8718F, IT8720F, IT8721F, IT8726F, IT8728F, IT8758E,
-	  IT8771E, IT8772E, IT8782F, IT8783E/F and IT8603E sensor chips,
-	  and the SiS950 clone.
+	  IT8771E, IT8772E, IT8781F, IT8782F, IT8783E/F, IT8786E, IT8790E,
+	  IT8603E, IT8620E, and IT8623E sensor chips, and the SiS950 clone.
 
 	  This driver can also be built as a module.  If so, the module
 	  will be called it87.
@@ -624,7 +625,7 @@ config SENSORS_JC42
 	  mobile devices and servers.  Support will include, but not be limited
 	  to, ADT7408, AT30TS00, CAT34TS02, CAT6095, MAX6604, MCP9804, MCP9805,
 	  MCP98242, MCP98243, MCP98244, MCP9843, SE97, SE98, STTS424(E),
-	  STTS2002, STTS3000, TSE2002B3, TSE2002GB2, TS3000B3, and TS3000GB2.
+	  STTS2002, STTS3000, TSE2002, TSE2004, TS3000, and TS3001.
 
 	  This driver can also be built as a module.  If so, the module
 	  will be called jc42.
@@ -1145,6 +1146,16 @@ config SENSORS_NCT7802
 	  This driver can also be built as a module.  If so, the module
 	  will be called nct7802.
 
+config SENSORS_NCT7904
+	tristate "Nuvoton NCT7904"
+	depends on I2C
+	help
+	  If you say yes here you get support for the Nuvoton NCT7904
+	  hardware monitoring chip, including manual fan speed control.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called nct7904.
+
 config SENSORS_PCF8591
 	tristate "Philips PCF8591 ADC/DAC"
 	depends on I2C
@@ -1164,6 +1175,7 @@ source drivers/hwmon/pmbus/Kconfig
 config SENSORS_PWM_FAN
 	tristate "PWM fan"
 	depends on (PWM && OF) || COMPILE_TEST
+	depends on THERMAL || THERMAL=n
 	help
 	  If you say yes here you get support for fans connected to PWM lines.
 	  The driver uses the generic PWM interface, thus it will work on a
diff --git a/drivers/hwmon/Makefile b/drivers/hwmon/Makefile
index 6c94147..b4a40f1 100644
--- a/drivers/hwmon/Makefile
+++ b/drivers/hwmon/Makefile
@@ -120,6 +120,7 @@ obj-$(CONFIG_SENSORS_MENF21BMC_HWMON) += menf21bmc_hwmon.o
 obj-$(CONFIG_SENSORS_NCT6683)	+= nct6683.o
 obj-$(CONFIG_SENSORS_NCT6775)	+= nct6775.o
 obj-$(CONFIG_SENSORS_NCT7802)	+= nct7802.o
+obj-$(CONFIG_SENSORS_NCT7904)	+= nct7904.o
 obj-$(CONFIG_SENSORS_NTC_THERMISTOR)	+= ntc_thermistor.o
 obj-$(CONFIG_SENSORS_PC87360)	+= pc87360.o
 obj-$(CONFIG_SENSORS_PC87427)	+= pc87427.o
diff --git a/drivers/hwmon/ads7828.c b/drivers/hwmon/ads7828.c
index bce4e9f..6c99ee7 100644
--- a/drivers/hwmon/ads7828.c
+++ b/drivers/hwmon/ads7828.c
@@ -147,6 +147,9 @@ static int ads7828_probe(struct i2c_client *client,
 						    &ads2830_regmap_config);
 	}
 
+	if (IS_ERR(data->regmap))
+		return PTR_ERR(data->regmap);
+
 	data->cmd_byte = ext_vref ? ADS7828_CMD_PD1 : ADS7828_CMD_PD3;
 	if (!diff_input)
 		data->cmd_byte |= ADS7828_CMD_SD_SE;
diff --git a/drivers/hwmon/coretemp.c b/drivers/hwmon/coretemp.c
index 5b7fec8..ed303ba 100644
--- a/drivers/hwmon/coretemp.c
+++ b/drivers/hwmon/coretemp.c
@@ -397,14 +397,13 @@ static int create_core_attrs(struct temp_data *tdata, struct device *dev,
 			struct device_attribute *devattr, char *buf) = {
 			show_label, show_crit_alarm, show_temp, show_tjmax,
 			show_ttarget };
-	static const char *const names[TOTAL_ATTRS] = {
-					"temp%d_label", "temp%d_crit_alarm",
-					"temp%d_input", "temp%d_crit",
-					"temp%d_max" };
+	static const char *const suffixes[TOTAL_ATTRS] = {
+		"label", "crit_alarm", "input", "crit", "max"
+	};
 
 	for (i = 0; i < tdata->attr_size; i++) {
-		snprintf(tdata->attr_name[i], CORETEMP_NAME_LENGTH, names[i],
-			attr_no);
+		snprintf(tdata->attr_name[i], CORETEMP_NAME_LENGTH,
+			 "temp%d_%s", attr_no, suffixes[i]);
 		sysfs_attr_init(&tdata->sd_attrs[i].dev_attr.attr);
 		tdata->sd_attrs[i].dev_attr.attr.name = tdata->attr_name[i];
 		tdata->sd_attrs[i].dev_attr.attr.mode = S_IRUGO;
diff --git a/drivers/hwmon/gpio-fan.c b/drivers/hwmon/gpio-fan.c
index 36abf81..a3dae6d 100644
--- a/drivers/hwmon/gpio-fan.c
+++ b/drivers/hwmon/gpio-fan.c
@@ -34,10 +34,13 @@
 #include <linux/of.h>
 #include <linux/of_platform.h>
 #include <linux/of_gpio.h>
+#include <linux/thermal.h>
 
 struct gpio_fan_data {
 	struct platform_device	*pdev;
 	struct device		*hwmon_dev;
+	/* Cooling device if any */
+	struct thermal_cooling_device *cdev;
 	struct mutex		lock; /* lock GPIOs operations. */
 	int			num_ctrl;
 	unsigned		*ctrl;
@@ -387,6 +390,53 @@ static int fan_ctrl_init(struct gpio_fan_data *fan_data,
 	return 0;
 }
 
+static int gpio_fan_get_max_state(struct thermal_cooling_device *cdev,
+				  unsigned long *state)
+{
+	struct gpio_fan_data *fan_data = cdev->devdata;
+
+	if (!fan_data)
+		return -EINVAL;
+
+	*state = fan_data->num_speed - 1;
+	return 0;
+}
+
+static int gpio_fan_get_cur_state(struct thermal_cooling_device *cdev,
+				  unsigned long *state)
+{
+	struct gpio_fan_data *fan_data = cdev->devdata;
+	int r;
+
+	if (!fan_data)
+		return -EINVAL;
+
+	r = get_fan_speed_index(fan_data);
+	if (r < 0)
+		return r;
+
+	*state = r;
+	return 0;
+}
+
+static int gpio_fan_set_cur_state(struct thermal_cooling_device *cdev,
+				  unsigned long state)
+{
+	struct gpio_fan_data *fan_data = cdev->devdata;
+
+	if (!fan_data)
+		return -EINVAL;
+
+	set_fan_speed(fan_data, state);
+	return 0;
+}
+
+static const struct thermal_cooling_device_ops gpio_fan_cool_ops = {
+	.get_max_state = gpio_fan_get_max_state,
+	.get_cur_state = gpio_fan_get_cur_state,
+	.set_cur_state = gpio_fan_set_cur_state,
+};
+
 #ifdef CONFIG_OF_GPIO
 /*
  * Translate OpenFirmware node properties into platform_data
@@ -404,10 +454,32 @@ static int gpio_fan_get_of_pdata(struct device *dev,
 
 	node = dev->of_node;
 
+	/* Alarm GPIO if one exists */
+	if (of_gpio_named_count(node, "alarm-gpios") > 0) {
+		struct gpio_fan_alarm *alarm;
+		int val;
+		enum of_gpio_flags flags;
+
+		alarm = devm_kzalloc(dev, sizeof(struct gpio_fan_alarm),
+					GFP_KERNEL);
+		if (!alarm)
+			return -ENOMEM;
+
+		val = of_get_named_gpio_flags(node, "alarm-gpios", 0, &flags);
+		if (val < 0)
+			return val;
+		alarm->gpio = val;
+		alarm->active_low = flags & OF_GPIO_ACTIVE_LOW;
+
+		pdata->alarm = alarm;
+	}
+
 	/* Fill GPIO pin array */
 	pdata->num_ctrl = of_gpio_count(node);
 	if (pdata->num_ctrl <= 0) {
-		dev_err(dev, "gpios DT property empty / missing");
+		if (pdata->alarm)
+			return 0;
+		dev_err(dev, "DT properties empty / missing");
 		return -ENODEV;
 	}
 	ctrl = devm_kzalloc(dev, pdata->num_ctrl * sizeof(unsigned),
@@ -460,26 +532,6 @@ static int gpio_fan_get_of_pdata(struct device *dev,
 	}
 	pdata->speed = speed;
 
-	/* Alarm GPIO if one exists */
-	if (of_gpio_named_count(node, "alarm-gpios") > 0) {
-		struct gpio_fan_alarm *alarm;
-		int val;
-		enum of_gpio_flags flags;
-
-		alarm = devm_kzalloc(dev, sizeof(struct gpio_fan_alarm),
-					GFP_KERNEL);
-		if (!alarm)
-			return -ENOMEM;
-
-		val = of_get_named_gpio_flags(node, "alarm-gpios", 0, &flags);
-		if (val < 0)
-			return val;
-		alarm->gpio = val;
-		alarm->active_low = flags & OF_GPIO_ACTIVE_LOW;
-
-		pdata->alarm = alarm;
-	}
-
 	return 0;
 }
 
@@ -495,6 +547,11 @@ static int gpio_fan_probe(struct platform_device *pdev)
 	struct gpio_fan_data *fan_data;
 	struct gpio_fan_platform_data *pdata = dev_get_platdata(&pdev->dev);
 
+	fan_data = devm_kzalloc(&pdev->dev, sizeof(struct gpio_fan_data),
+				GFP_KERNEL);
+	if (!fan_data)
+		return -ENOMEM;
+
 #ifdef CONFIG_OF_GPIO
 	if (!pdata) {
 		pdata = devm_kzalloc(&pdev->dev,
@@ -512,11 +569,6 @@ static int gpio_fan_probe(struct platform_device *pdev)
 		return -EINVAL;
 #endif /* CONFIG_OF_GPIO */
 
-	fan_data = devm_kzalloc(&pdev->dev, sizeof(struct gpio_fan_data),
-				GFP_KERNEL);
-	if (!fan_data)
-		return -ENOMEM;
-
 	fan_data->pdev = pdev;
 	platform_set_drvdata(pdev, fan_data);
 	mutex_init(&fan_data->lock);
@@ -544,18 +596,39 @@ static int gpio_fan_probe(struct platform_device *pdev)
 						       gpio_fan_groups);
 	if (IS_ERR(fan_data->hwmon_dev))
 		return PTR_ERR(fan_data->hwmon_dev);
+#ifdef CONFIG_OF_GPIO
+	/* Optional cooling device register for Device tree platforms */
+	fan_data->cdev = thermal_of_cooling_device_register(pdev->dev.of_node,
+							    "gpio-fan",
+							    fan_data,
+							    &gpio_fan_cool_ops);
+#else /* CONFIG_OF_GPIO */
+	/* Optional cooling device register for non Device tree platforms */
+	fan_data->cdev = thermal_cooling_device_register("gpio-fan", fan_data,
+							 &gpio_fan_cool_ops);
+#endif /* CONFIG_OF_GPIO */
 
 	dev_info(&pdev->dev, "GPIO fan initialized\n");
 
 	return 0;
 }
 
-static void gpio_fan_shutdown(struct platform_device *pdev)
+static int gpio_fan_remove(struct platform_device *pdev)
 {
-	struct gpio_fan_data *fan_data = dev_get_drvdata(&pdev->dev);
+	struct gpio_fan_data *fan_data = platform_get_drvdata(pdev);
+
+	if (!IS_ERR(fan_data->cdev))
+		thermal_cooling_device_unregister(fan_data->cdev);
 
 	if (fan_data->ctrl)
 		set_fan_speed(fan_data, 0);
+
+	return 0;
+}
+
+static void gpio_fan_shutdown(struct platform_device *pdev)
+{
+	gpio_fan_remove(pdev);
 }
 
 #ifdef CONFIG_PM_SLEEP
@@ -589,6 +662,7 @@ static SIMPLE_DEV_PM_OPS(gpio_fan_pm, gpio_fan_suspend, gpio_fan_resume);
 
 static struct platform_driver gpio_fan_driver = {
 	.probe		= gpio_fan_probe,
+	.remove		= gpio_fan_remove,
 	.shutdown	= gpio_fan_shutdown,
 	.driver	= {
 		.name	= "gpio-fan",
diff --git a/drivers/hwmon/ibmpex.c b/drivers/hwmon/ibmpex.c
index 030e7ff..21b9c72 100644
--- a/drivers/hwmon/ibmpex.c
+++ b/drivers/hwmon/ibmpex.c
@@ -56,15 +56,10 @@ static u8 const temp_sensor_sig[]  = {0x74, 0x65, 0x6D};
 static u8 const watt_sensor_sig[]  = {0x41, 0x43};
 
 #define PEX_NUM_SENSOR_FUNCS	3
-static char const * const power_sensor_name_templates[] = {
-	"%s%d_average",
-	"%s%d_average_lowest",
-	"%s%d_average_highest"
-};
-static char const * const temp_sensor_name_templates[] = {
-	"%s%d_input",
-	"%s%d_input_lowest",
-	"%s%d_input_highest"
+static const char * const sensor_name_suffixes[] = {
+	"",
+	"_lowest",
+	"_highest"
 };
 
 static void ibmpex_msg_handler(struct ipmi_recv_msg *msg, void *user_msg_data);
@@ -355,9 +350,11 @@ static int create_sensor(struct ibmpex_bmc_data *data, int type,
 		return -ENOMEM;
 
 	if (type == TEMP_SENSOR)
-		sprintf(n, temp_sensor_name_templates[func], "temp", counter);
+		sprintf(n, "temp%d_input%s",
+			counter, sensor_name_suffixes[func]);
 	else if (type == POWER_SENSOR)
-		sprintf(n, power_sensor_name_templates[func], "power", counter);
+		sprintf(n, "power%d_average%s",
+			counter, sensor_name_suffixes[func]);
 
 	sysfs_attr_init(&data->sensors[sensor].attr[func].dev_attr.attr);
 	data->sensors[sensor].attr[func].dev_attr.attr.name = n;
diff --git a/drivers/hwmon/ibmpowernv.c b/drivers/hwmon/ibmpowernv.c
index febe817..4255514 100644
--- a/drivers/hwmon/ibmpowernv.c
+++ b/drivers/hwmon/ibmpowernv.c
@@ -30,8 +30,11 @@
 #include <linux/platform_device.h>
 #include <asm/opal.h>
 #include <linux/err.h>
+#include <asm/cputhreads.h>
+#include <asm/smp.h>
 
 #define MAX_ATTR_LEN	32
+#define MAX_LABEL_LEN	64
 
 /* Sensor suffix name from DT */
 #define DT_FAULT_ATTR_SUFFIX		"faulted"
@@ -44,17 +47,20 @@
  */
 enum sensors {
 	FAN,
-	AMBIENT_TEMP,
+	TEMP,
 	POWER_SUPPLY,
 	POWER_INPUT,
 	MAX_SENSOR_TYPE,
 };
 
+#define INVALID_INDEX (-1U)
+
 static struct sensor_group {
 	const char *name;
 	const char *compatible;
 	struct attribute_group group;
 	u32 attr_count;
+	u32 hwmon_index;
 } sensor_groups[] = {
 	{"fan", "ibm,opal-sensor-cooling-fan"},
 	{"temp", "ibm,opal-sensor-amb-temp"},
@@ -64,7 +70,10 @@ static struct sensor_group {
 
 struct sensor_data {
 	u32 id; /* An opaque id of the firmware for each sensor */
+	u32 hwmon_index;
+	u32 opal_index;
 	enum sensors type;
+	char label[MAX_LABEL_LEN];
 	char name[MAX_ATTR_LEN];
 	struct device_attribute dev_attr;
 };
@@ -87,7 +96,7 @@ static ssize_t show_sensor(struct device *dev, struct device_attribute *devattr,
 		return ret;
 
 	/* Convert temperature to milli-degrees */
-	if (sdata->type == AMBIENT_TEMP)
+	if (sdata->type == TEMP)
 		x *= 1000;
 	/* Convert power to micro-watts */
 	else if (sdata->type == POWER_INPUT)
@@ -96,8 +105,65 @@ static ssize_t show_sensor(struct device *dev, struct device_attribute *devattr,
 	return sprintf(buf, "%u\n", x);
 }
 
-static int get_sensor_index_attr(const char *name, u32 *index,
-					char *attr)
+static ssize_t show_label(struct device *dev, struct device_attribute *devattr,
+			  char *buf)
+{
+	struct sensor_data *sdata = container_of(devattr, struct sensor_data,
+						 dev_attr);
+
+	return sprintf(buf, "%s\n", sdata->label);
+}
+
+static int __init get_logical_cpu(int hwcpu)
+{
+	int cpu;
+
+	for_each_possible_cpu(cpu)
+		if (get_hard_smp_processor_id(cpu) == hwcpu)
+			return cpu;
+
+	return -ENOENT;
+}
+
+static void __init make_sensor_label(struct device_node *np,
+				     struct sensor_data *sdata,
+				     const char *label)
+{
+	u32 id;
+	size_t n;
+
+	n = snprintf(sdata->label, sizeof(sdata->label), "%s", label);
+
+	/*
+	 * Core temp pretty print
+	 */
+	if (!of_property_read_u32(np, "ibm,pir", &id)) {
+		int cpuid = get_logical_cpu(id);
+
+		if (cpuid >= 0)
+			/*
+			 * The digital thermal sensors are associated
+			 * with a core. Let's print out the range of
+			 * cpu ids corresponding to the hardware
+			 * threads of the core.
+			 */
+			n += snprintf(sdata->label + n,
+				      sizeof(sdata->label) - n, " %d-%d",
+				      cpuid, cpuid + threads_per_core - 1);
+		else
+			n += snprintf(sdata->label + n,
+				      sizeof(sdata->label) - n, " phy%d", id);
+	}
+
+	/*
+	 * Membuffer pretty print
+	 */
+	if (!of_property_read_u32(np, "ibm,chip-id", &id))
+		n += snprintf(sdata->label + n, sizeof(sdata->label) - n,
+			      " %d", id & 0xffff);
+}
+
+static int get_sensor_index_attr(const char *name, u32 *index, char *attr)
 {
 	char *hash_pos = strchr(name, '#');
 	char buf[8] = { 0 };
@@ -127,46 +193,90 @@ static int get_sensor_index_attr(const char *name, u32 *index,
 	return 0;
 }
 
+static const char *convert_opal_attr_name(enum sensors type,
+					  const char *opal_attr)
+{
+	const char *attr_name = NULL;
+
+	if (!strcmp(opal_attr, DT_FAULT_ATTR_SUFFIX)) {
+		attr_name = "fault";
+	} else if (!strcmp(opal_attr, DT_DATA_ATTR_SUFFIX)) {
+		attr_name = "input";
+	} else if (!strcmp(opal_attr, DT_THRESHOLD_ATTR_SUFFIX)) {
+		if (type == TEMP)
+			attr_name = "max";
+		else if (type == FAN)
+			attr_name = "min";
+	}
+
+	return attr_name;
+}
+
 /*
  * This function translates the DT node name into the 'hwmon' attribute name.
  * IBMPOWERNV device node appear like cooling-fan#2-data, amb-temp#1-thrs etc.
  * which need to be mapped as fan2_input, temp1_max respectively before
  * populating them inside hwmon device class.
  */
-static int create_hwmon_attr_name(struct device *dev, enum sensors type,
-					 const char *node_name,
-					 char *hwmon_attr_name)
+static const char *parse_opal_node_name(const char *node_name,
+					enum sensors type, u32 *index)
 {
 	char attr_suffix[MAX_ATTR_LEN];
-	char *attr_name;
-	u32 index;
+	const char *attr_name;
 	int err;
 
-	err = get_sensor_index_attr(node_name, &index, attr_suffix);
-	if (err) {
-		dev_err(dev, "Sensor device node name '%s' is invalid\n",
-			node_name);
-		return err;
-	}
+	err = get_sensor_index_attr(node_name, index, attr_suffix);
+	if (err)
+		return ERR_PTR(err);
 
-	if (!strcmp(attr_suffix, DT_FAULT_ATTR_SUFFIX)) {
-		attr_name = "fault";
-	} else if (!strcmp(attr_suffix, DT_DATA_ATTR_SUFFIX)) {
-		attr_name = "input";
-	} else if (!strcmp(attr_suffix, DT_THRESHOLD_ATTR_SUFFIX)) {
-		if (type == AMBIENT_TEMP)
-			attr_name = "max";
-		else if (type == FAN)
-			attr_name = "min";
-		else
-			return -ENOENT;
-	} else {
-		return -ENOENT;
+	attr_name = convert_opal_attr_name(type, attr_suffix);
+	if (!attr_name)
+		return ERR_PTR(-ENOENT);
+
+	return attr_name;
+}
+
+static int get_sensor_type(struct device_node *np)
+{
+	enum sensors type;
+	const char *str;
+
+	for (type = 0; type < MAX_SENSOR_TYPE; type++) {
+		if (of_device_is_compatible(np, sensor_groups[type].compatible))
+			return type;
 	}
 
-	snprintf(hwmon_attr_name, MAX_ATTR_LEN, "%s%d_%s",
-		 sensor_groups[type].name, index, attr_name);
-	return 0;
+	/*
+	 * Let's check if we have a newer device tree
+	 */
+	if (!of_device_is_compatible(np, "ibm,opal-sensor"))
+		return MAX_SENSOR_TYPE;
+
+	if (of_property_read_string(np, "sensor-type", &str))
+		return MAX_SENSOR_TYPE;
+
+	for (type = 0; type < MAX_SENSOR_TYPE; type++)
+		if (!strcmp(str, sensor_groups[type].name))
+			return type;
+
+	return MAX_SENSOR_TYPE;
+}
+
+static u32 get_sensor_hwmon_index(struct sensor_data *sdata,
+				  struct sensor_data *sdata_table, int count)
+{
+	int i;
+
+	/*
+	 * We don't use the OPAL index on newer device trees
+	 */
+	if (sdata->opal_index != INVALID_INDEX) {
+		for (i = 0; i < count; i++)
+			if (sdata_table[i].opal_index == sdata->opal_index &&
+			    sdata_table[i].type == sdata->type)
+				return sdata_table[i].hwmon_index;
+	}
+	return ++sensor_groups[sdata->type].hwmon_index;
 }
 
 static int populate_attr_groups(struct platform_device *pdev)
@@ -178,15 +288,22 @@ static int populate_attr_groups(struct platform_device *pdev)
 
 	opal = of_find_node_by_path("/ibm,opal/sensors");
 	for_each_child_of_node(opal, np) {
+		const char *label;
+
 		if (np->name == NULL)
 			continue;
 
-		for (type = 0; type < MAX_SENSOR_TYPE; type++)
-			if (of_device_is_compatible(np,
-					sensor_groups[type].compatible)) {
-				sensor_groups[type].attr_count++;
-				break;
-			}
+		type = get_sensor_type(np);
+		if (type == MAX_SENSOR_TYPE)
+			continue;
+
+		sensor_groups[type].attr_count++;
+
+		/*
+		 * add a new attribute for labels
+		 */
+		if (!of_property_read_string(np, "label", &label))
+			sensor_groups[type].attr_count++;
 	}
 
 	of_node_put(opal);
@@ -207,6 +324,21 @@ static int populate_attr_groups(struct platform_device *pdev)
 	return 0;
 }
 
+static void create_hwmon_attr(struct sensor_data *sdata, const char *attr_name,
+			      ssize_t (*show)(struct device *dev,
+					      struct device_attribute *attr,
+					      char *buf))
+{
+	snprintf(sdata->name, MAX_ATTR_LEN, "%s%d_%s",
+		 sensor_groups[sdata->type].name, sdata->hwmon_index,
+		 attr_name);
+
+	sysfs_attr_init(&sdata->dev_attr.attr);
+	sdata->dev_attr.attr.name = sdata->name;
+	sdata->dev_attr.attr.mode = S_IRUGO;
+	sdata->dev_attr.show = show;
+}
+
 /*
  * Iterate through the device tree for each child of 'sensors' node, create
  * a sysfs attribute file, the file is named by translating the DT node name
@@ -233,18 +365,23 @@ static int create_device_attrs(struct platform_device *pdev)
 	}
 
 	for_each_child_of_node(opal, np) {
+		const char *attr_name;
+		u32 opal_index;
+		const char *label;
+
 		if (np->name == NULL)
 			continue;
 
-		for (type = 0; type < MAX_SENSOR_TYPE; type++)
-			if (of_device_is_compatible(np,
-					sensor_groups[type].compatible))
-				break;
-
+		type = get_sensor_type(np);
 		if (type == MAX_SENSOR_TYPE)
 			continue;
 
-		if (of_property_read_u32(np, "sensor-id", &sensor_id)) {
+		/*
+		 * Newer device trees use a "sensor-data" property
+		 * name for input.
+		 */
+		if (of_property_read_u32(np, "sensor-id", &sensor_id) &&
+		    of_property_read_u32(np, "sensor-data", &sensor_id)) {
 			dev_info(&pdev->dev,
 				 "'sensor-id' missing in the node '%s'\n",
 				 np->name);
@@ -253,18 +390,46 @@ static int create_device_attrs(struct platform_device *pdev)
 
 		sdata[count].id = sensor_id;
 		sdata[count].type = type;
-		err = create_hwmon_attr_name(&pdev->dev, type, np->name,
-					     sdata[count].name);
-		if (err)
-			goto exit_put_node;
 
-		sysfs_attr_init(&sdata[count].dev_attr.attr);
-		sdata[count].dev_attr.attr.name = sdata[count].name;
-		sdata[count].dev_attr.attr.mode = S_IRUGO;
-		sdata[count].dev_attr.show = show_sensor;
+		/*
+		 * If we can not parse the node name, it means we are
+		 * running on a newer device tree. We can just forget
+		 * about the OPAL index and use a defaut value for the
+		 * hwmon attribute name
+		 */
+		attr_name = parse_opal_node_name(np->name, type, &opal_index);
+		if (IS_ERR(attr_name)) {
+			attr_name = "input";
+			opal_index = INVALID_INDEX;
+		}
+
+		sdata[count].opal_index = opal_index;
+		sdata[count].hwmon_index =
+			get_sensor_hwmon_index(&sdata[count], sdata, count);
+
+		create_hwmon_attr(&sdata[count], attr_name, show_sensor);
 
 		pgroups[type]->attrs[sensor_groups[type].attr_count++] =
 				&sdata[count++].dev_attr.attr;
+
+		if (!of_property_read_string(np, "label", &label)) {
+			/*
+			 * For the label attribute, we can reuse the
+			 * "properties" of the previous "input"
+			 * attribute. They are related to the same
+			 * sensor.
+			 */
+			sdata[count].type = type;
+			sdata[count].opal_index = sdata[count - 1].opal_index;
+			sdata[count].hwmon_index = sdata[count - 1].hwmon_index;
+
+			make_sensor_label(np, &sdata[count], label);
+
+			create_hwmon_attr(&sdata[count], "label", show_label);
+
+			pgroups[type]->attrs[sensor_groups[type].attr_count++] =
+				&sdata[count++].dev_attr.attr;
+		}
 	}
 
 exit_put_node:
diff --git a/drivers/hwmon/it87.c b/drivers/hwmon/it87.c
index 409116c..d0ee556 100644
--- a/drivers/hwmon/it87.c
+++ b/drivers/hwmon/it87.c
@@ -11,6 +11,7 @@
  *  similar parts.  The other devices are supported by different drivers.
  *
  *  Supports: IT8603E  Super I/O chip w/LPC interface
+ *            IT8620E  Super I/O chip w/LPC interface
  *            IT8623E  Super I/O chip w/LPC interface
  *            IT8705F  Super I/O chip w/LPC interface
  *            IT8712F  Super I/O chip w/LPC interface
@@ -23,8 +24,11 @@
  *            IT8758E  Super I/O chip w/LPC interface
  *            IT8771E  Super I/O chip w/LPC interface
  *            IT8772E  Super I/O chip w/LPC interface
+ *            IT8781F  Super I/O chip w/LPC interface
  *            IT8782F  Super I/O chip w/LPC interface
  *            IT8783E/F Super I/O chip w/LPC interface
+ *            IT8786E  Super I/O chip w/LPC interface
+ *            IT8790E  Super I/O chip w/LPC interface
  *            Sis950   A clone of the IT8705F
  *
  *  Copyright (C) 2001 Chris Gauthron
@@ -66,7 +70,7 @@
 #define DRVNAME "it87"
 
 enum chips { it87, it8712, it8716, it8718, it8720, it8721, it8728, it8771,
-	     it8772, it8782, it8783, it8603 };
+	     it8772, it8781, it8782, it8783, it8786, it8790, it8603, it8620 };
 
 static unsigned short force_id;
 module_param(force_id, ushort, 0);
@@ -146,15 +150,20 @@ static inline void superio_exit(void)
 #define IT8728F_DEVID 0x8728
 #define IT8771E_DEVID 0x8771
 #define IT8772E_DEVID 0x8772
+#define IT8781F_DEVID 0x8781
 #define IT8782F_DEVID 0x8782
 #define IT8783E_DEVID 0x8783
+#define IT8786E_DEVID 0x8786
+#define IT8790E_DEVID 0x8790
 #define IT8603E_DEVID 0x8603
+#define IT8620E_DEVID 0x8620
 #define IT8623E_DEVID 0x8623
 #define IT87_ACT_REG  0x30
 #define IT87_BASE_REG 0x60
 
 /* Logical device 7 registers (IT8712F and later) */
 #define IT87_SIO_GPIO1_REG	0x25
+#define IT87_SIO_GPIO2_REG	0x26
 #define IT87_SIO_GPIO3_REG	0x27
 #define IT87_SIO_GPIO5_REG	0x29
 #define IT87_SIO_PINX1_REG	0x2a	/* Pin selection */
@@ -207,11 +216,11 @@ static bool fix_pwm_polarity;
 
 /* Monitors: 9 voltage (0 to 7, battery), 3 temp (1 to 3), 3 fan (1 to 3) */
 
-static const u8 IT87_REG_FAN[]		= { 0x0d, 0x0e, 0x0f, 0x80, 0x82 };
-static const u8 IT87_REG_FAN_MIN[]	= { 0x10, 0x11, 0x12, 0x84, 0x86 };
-static const u8 IT87_REG_FANX[]		= { 0x18, 0x19, 0x1a, 0x81, 0x83 };
-static const u8 IT87_REG_FANX_MIN[]	= { 0x1b, 0x1c, 0x1d, 0x85, 0x87 };
-static const u8 IT87_REG_TEMP_OFFSET[]	= { 0x56, 0x57, 0x59 };
+static const u8 IT87_REG_FAN[]         = { 0x0d, 0x0e, 0x0f, 0x80, 0x82, 0x4c };
+static const u8 IT87_REG_FAN_MIN[]     = { 0x10, 0x11, 0x12, 0x84, 0x86, 0x4e };
+static const u8 IT87_REG_FANX[]        = { 0x18, 0x19, 0x1a, 0x81, 0x83, 0x4d };
+static const u8 IT87_REG_FANX_MIN[]    = { 0x1b, 0x1c, 0x1d, 0x85, 0x87, 0x4f };
+static const u8 IT87_REG_TEMP_OFFSET[] = { 0x56, 0x57, 0x59 };
 
 #define IT87_REG_FAN_MAIN_CTRL 0x13
 #define IT87_REG_FAN_CTL       0x14
@@ -238,6 +247,7 @@ static const u8 IT87_REG_TEMP_OFFSET[]	= { 0x56, 0x57, 0x59 };
 
 struct it87_devices {
 	const char *name;
+	const char * const suffix;
 	u16 features;
 	u8 peci_mask;
 	u8 old_peci_mask;
@@ -250,79 +260,131 @@ struct it87_devices {
 #define FEAT_TEMP_OFFSET	(1 << 4)
 #define FEAT_TEMP_PECI		(1 << 5)
 #define FEAT_TEMP_OLD_PECI	(1 << 6)
+#define FEAT_FAN16_CONFIG	(1 << 7)	/* Need to enable 16-bit fans */
+#define FEAT_FIVE_FANS		(1 << 8)	/* Supports five fans */
+#define FEAT_VID		(1 << 9)	/* Set if chip supports VID */
+#define FEAT_IN7_INTERNAL	(1 << 10)	/* Set if in7 is internal */
+#define FEAT_SIX_FANS		(1 << 11)	/* Supports six fans */
 
 static const struct it87_devices it87_devices[] = {
 	[it87] = {
 		.name = "it87",
+		.suffix = "F",
 		.features = FEAT_OLD_AUTOPWM,	/* may need to overwrite */
 	},
 	[it8712] = {
 		.name = "it8712",
-		.features = FEAT_OLD_AUTOPWM,	/* may need to overwrite */
+		.suffix = "F",
+		.features = FEAT_OLD_AUTOPWM | FEAT_VID,
+						/* may need to overwrite */
 	},
 	[it8716] = {
 		.name = "it8716",
-		.features = FEAT_16BIT_FANS | FEAT_TEMP_OFFSET,
+		.suffix = "F",
+		.features = FEAT_16BIT_FANS | FEAT_TEMP_OFFSET | FEAT_VID
+		  | FEAT_FAN16_CONFIG | FEAT_FIVE_FANS,
 	},
 	[it8718] = {
 		.name = "it8718",
-		.features = FEAT_16BIT_FANS | FEAT_TEMP_OFFSET
-		  | FEAT_TEMP_OLD_PECI,
+		.suffix = "F",
+		.features = FEAT_16BIT_FANS | FEAT_TEMP_OFFSET | FEAT_VID
+		  | FEAT_TEMP_OLD_PECI | FEAT_FAN16_CONFIG | FEAT_FIVE_FANS,
 		.old_peci_mask = 0x4,
 	},
 	[it8720] = {
 		.name = "it8720",
-		.features = FEAT_16BIT_FANS | FEAT_TEMP_OFFSET
-		  | FEAT_TEMP_OLD_PECI,
+		.suffix = "F",
+		.features = FEAT_16BIT_FANS | FEAT_TEMP_OFFSET | FEAT_VID
+		  | FEAT_TEMP_OLD_PECI | FEAT_FAN16_CONFIG | FEAT_FIVE_FANS,
 		.old_peci_mask = 0x4,
 	},
 	[it8721] = {
 		.name = "it8721",
+		.suffix = "F",
 		.features = FEAT_NEWER_AUTOPWM | FEAT_12MV_ADC | FEAT_16BIT_FANS
-		  | FEAT_TEMP_OFFSET | FEAT_TEMP_OLD_PECI | FEAT_TEMP_PECI,
+		  | FEAT_TEMP_OFFSET | FEAT_TEMP_OLD_PECI | FEAT_TEMP_PECI
+		  | FEAT_FAN16_CONFIG | FEAT_FIVE_FANS | FEAT_IN7_INTERNAL,
 		.peci_mask = 0x05,
 		.old_peci_mask = 0x02,	/* Actually reports PCH */
 	},
 	[it8728] = {
 		.name = "it8728",
+		.suffix = "F",
 		.features = FEAT_NEWER_AUTOPWM | FEAT_12MV_ADC | FEAT_16BIT_FANS
-		  | FEAT_TEMP_OFFSET | FEAT_TEMP_PECI,
+		  | FEAT_TEMP_OFFSET | FEAT_TEMP_PECI | FEAT_FIVE_FANS
+		  | FEAT_IN7_INTERNAL,
 		.peci_mask = 0x07,
 	},
 	[it8771] = {
 		.name = "it8771",
+		.suffix = "E",
 		.features = FEAT_NEWER_AUTOPWM | FEAT_12MV_ADC | FEAT_16BIT_FANS
-		  | FEAT_TEMP_OFFSET | FEAT_TEMP_PECI,
-					/* PECI: guesswork */
-					/* 12mV ADC (OHM) */
-					/* 16 bit fans (OHM) */
+		  | FEAT_TEMP_OFFSET | FEAT_TEMP_PECI | FEAT_IN7_INTERNAL,
+				/* PECI: guesswork */
+				/* 12mV ADC (OHM) */
+				/* 16 bit fans (OHM) */
+				/* three fans, always 16 bit (guesswork) */
 		.peci_mask = 0x07,
 	},
 	[it8772] = {
 		.name = "it8772",
+		.suffix = "E",
 		.features = FEAT_NEWER_AUTOPWM | FEAT_12MV_ADC | FEAT_16BIT_FANS
-		  | FEAT_TEMP_OFFSET | FEAT_TEMP_PECI,
-					/* PECI (coreboot) */
-					/* 12mV ADC (HWSensors4, OHM) */
-					/* 16 bit fans (HWSensors4, OHM) */
+		  | FEAT_TEMP_OFFSET | FEAT_TEMP_PECI | FEAT_IN7_INTERNAL,
+				/* PECI (coreboot) */
+				/* 12mV ADC (HWSensors4, OHM) */
+				/* 16 bit fans (HWSensors4, OHM) */
+				/* three fans, always 16 bit (datasheet) */
 		.peci_mask = 0x07,
 	},
+	[it8781] = {
+		.name = "it8781",
+		.suffix = "F",
+		.features = FEAT_16BIT_FANS | FEAT_TEMP_OFFSET
+		  | FEAT_TEMP_OLD_PECI | FEAT_FAN16_CONFIG,
+		.old_peci_mask = 0x4,
+	},
 	[it8782] = {
 		.name = "it8782",
+		.suffix = "F",
 		.features = FEAT_16BIT_FANS | FEAT_TEMP_OFFSET
-		  | FEAT_TEMP_OLD_PECI,
+		  | FEAT_TEMP_OLD_PECI | FEAT_FAN16_CONFIG,
 		.old_peci_mask = 0x4,
 	},
 	[it8783] = {
 		.name = "it8783",
+		.suffix = "E/F",
 		.features = FEAT_16BIT_FANS | FEAT_TEMP_OFFSET
-		  | FEAT_TEMP_OLD_PECI,
+		  | FEAT_TEMP_OLD_PECI | FEAT_FAN16_CONFIG,
 		.old_peci_mask = 0x4,
 	},
+	[it8786] = {
+		.name = "it8786",
+		.suffix = "E",
+		.features = FEAT_NEWER_AUTOPWM | FEAT_12MV_ADC | FEAT_16BIT_FANS
+		  | FEAT_TEMP_OFFSET | FEAT_TEMP_PECI | FEAT_IN7_INTERNAL,
+		.peci_mask = 0x07,
+	},
+	[it8790] = {
+		.name = "it8790",
+		.suffix = "E",
+		.features = FEAT_NEWER_AUTOPWM | FEAT_12MV_ADC | FEAT_16BIT_FANS
+		  | FEAT_TEMP_OFFSET | FEAT_TEMP_PECI | FEAT_IN7_INTERNAL,
+		.peci_mask = 0x07,
+	},
 	[it8603] = {
 		.name = "it8603",
+		.suffix = "E",
 		.features = FEAT_NEWER_AUTOPWM | FEAT_12MV_ADC | FEAT_16BIT_FANS
-		  | FEAT_TEMP_OFFSET | FEAT_TEMP_PECI,
+		  | FEAT_TEMP_OFFSET | FEAT_TEMP_PECI | FEAT_IN7_INTERNAL,
+		.peci_mask = 0x07,
+	},
+	[it8620] = {
+		.name = "it8620",
+		.suffix = "E",
+		.features = FEAT_NEWER_AUTOPWM | FEAT_12MV_ADC | FEAT_16BIT_FANS
+		  | FEAT_TEMP_OFFSET | FEAT_TEMP_PECI | FEAT_SIX_FANS
+		  | FEAT_IN7_INTERNAL,
 		.peci_mask = 0x07,
 	},
 };
@@ -337,6 +399,12 @@ static const struct it87_devices it87_devices[] = {
 #define has_temp_old_peci(data, nr) \
 				(((data)->features & FEAT_TEMP_OLD_PECI) && \
 				 ((data)->old_peci_mask & (1 << nr)))
+#define has_fan16_config(data)	((data)->features & FEAT_FAN16_CONFIG)
+#define has_five_fans(data)	((data)->features & (FEAT_FIVE_FANS | \
+						     FEAT_SIX_FANS))
+#define has_vid(data)		((data)->features & FEAT_VID)
+#define has_in7_internal(data)	((data)->features & FEAT_IN7_INTERNAL)
+#define has_six_fans(data)	((data)->features & FEAT_SIX_FANS)
 
 struct it87_sio_data {
 	enum chips type;
@@ -373,7 +441,7 @@ struct it87_data {
 	u16 in_scaled;		/* Internal voltage sensors are scaled */
 	u8 in[10][3];		/* [nr][0]=in, [1]=min, [2]=max */
 	u8 has_fan;		/* Bitfield, fans enabled */
-	u16 fan[5][2];		/* Register values, [nr][0]=fan, [1]=min */
+	u16 fan[6][2];		/* Register values, [nr][0]=fan, [1]=min */
 	u8 has_temp;		/* Bitfield, temp sensors enabled */
 	s8 temp[3][4];		/* [nr][0]=temp, [1]=min, [2]=max, [3]=offset */
 	u8 sensor;		/* Register value (IT87_REG_TEMP_ENABLE) */
@@ -475,15 +543,25 @@ static int DIV_TO_REG(int val)
 }
 #define DIV_FROM_REG(val) (1 << (val))
 
+/*
+ * PWM base frequencies. The frequency has to be divided by either 128 or 256,
+ * depending on the chip type, to calculate the actual PWM frequency.
+ *
+ * Some of the chip datasheets suggest a base frequency of 51 kHz instead
+ * of 750 kHz for the slowest base frequency, resulting in a PWM frequency
+ * of 200 Hz. Sometimes both PWM frequency select registers are affected,
+ * sometimes just one. It is unknown if this is a datasheet error or real,
+ * so this is ignored for now.
+ */
 static const unsigned int pwm_freq[8] = {
-	48000000 / 128,
-	24000000 / 128,
-	12000000 / 128,
-	8000000 / 128,
-	6000000 / 128,
-	3000000 / 128,
-	1500000 / 128,
-	750000 / 128,
+	48000000,
+	24000000,
+	12000000,
+	8000000,
+	6000000,
+	3000000,
+	1500000,
+	750000,
 };
 
 static int it87_probe(struct platform_device *pdev);
@@ -801,8 +879,11 @@ static ssize_t show_pwm_freq(struct device *dev, struct device_attribute *attr,
 {
 	struct it87_data *data = it87_update_device(dev);
 	int index = (data->fan_ctl >> 4) & 0x07;
+	unsigned int freq;
 
-	return sprintf(buf, "%u\n", pwm_freq[index]);
+	freq = pwm_freq[index] / (has_newer_autopwm(data) ? 256 : 128);
+
+	return sprintf(buf, "%u\n", freq);
 }
 
 static ssize_t set_fan(struct device *dev, struct device_attribute *attr,
@@ -1024,6 +1105,9 @@ static ssize_t set_pwm_freq(struct device *dev,
 	if (kstrtoul(buf, 10, &val) < 0)
 		return -EINVAL;
 
+	val = clamp_val(val, 0, 1000000);
+	val *= has_newer_autopwm(data) ? 256 : 128;
+
 	/* Search for the nearest available frequency */
 	for (i = 0; i < 7; i++) {
 		if (val > (pwm_freq[i] + pwm_freq[i+1]) / 2)
@@ -1196,6 +1280,10 @@ static SENSOR_DEVICE_ATTR_2(fan5_input, S_IRUGO, show_fan, NULL, 4, 0);
 static SENSOR_DEVICE_ATTR_2(fan5_min, S_IRUGO | S_IWUSR, show_fan, set_fan,
 			    4, 1);
 
+static SENSOR_DEVICE_ATTR_2(fan6_input, S_IRUGO, show_fan, NULL, 5, 0);
+static SENSOR_DEVICE_ATTR_2(fan6_min, S_IRUGO | S_IWUSR, show_fan, set_fan,
+			    5, 1);
+
 static SENSOR_DEVICE_ATTR(pwm1_enable, S_IRUGO | S_IWUSR,
 			  show_pwm_enable, set_pwm_enable, 0);
 static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR, show_pwm, set_pwm, 0);
@@ -1326,6 +1414,7 @@ static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 1);
 static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 2);
 static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 3);
 static SENSOR_DEVICE_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 6);
+static SENSOR_DEVICE_ATTR(fan6_alarm, S_IRUGO, show_alarm, NULL, 7);
 static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 16);
 static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 17);
 static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 18);
@@ -1376,6 +1465,7 @@ static SENSOR_DEVICE_ATTR(fan2_beep, S_IRUGO, show_beep, set_beep, 0);
 static SENSOR_DEVICE_ATTR(fan3_beep, S_IRUGO, show_beep, set_beep, 0);
 static SENSOR_DEVICE_ATTR(fan4_beep, S_IRUGO, show_beep, set_beep, 0);
 static SENSOR_DEVICE_ATTR(fan5_beep, S_IRUGO, show_beep, set_beep, 0);
+static SENSOR_DEVICE_ATTR(fan6_beep, S_IRUGO, show_beep, set_beep, 0);
 static SENSOR_DEVICE_ATTR(temp1_beep, S_IRUGO | S_IWUSR,
 			  show_beep, set_beep, 2);
 static SENSOR_DEVICE_ATTR(temp2_beep, S_IRUGO, show_beep, NULL, 2);
@@ -1579,7 +1669,7 @@ static struct attribute *it87_attributes_temp_beep[] = {
 	&sensor_dev_attr_temp3_beep.dev_attr.attr,
 };
 
-static struct attribute *it87_attributes_fan[5][3+1] = { {
+static struct attribute *it87_attributes_fan[6][3+1] = { {
 	&sensor_dev_attr_fan1_input.dev_attr.attr,
 	&sensor_dev_attr_fan1_min.dev_attr.attr,
 	&sensor_dev_attr_fan1_alarm.dev_attr.attr,
@@ -1604,14 +1694,20 @@ static struct attribute *it87_attributes_fan[5][3+1] = { {
 	&sensor_dev_attr_fan5_min.dev_attr.attr,
 	&sensor_dev_attr_fan5_alarm.dev_attr.attr,
 	NULL
+}, {
+	&sensor_dev_attr_fan6_input.dev_attr.attr,
+	&sensor_dev_attr_fan6_min.dev_attr.attr,
+	&sensor_dev_attr_fan6_alarm.dev_attr.attr,
+	NULL
 } };
 
-static const struct attribute_group it87_group_fan[5] = {
+static const struct attribute_group it87_group_fan[6] = {
 	{ .attrs = it87_attributes_fan[0] },
 	{ .attrs = it87_attributes_fan[1] },
 	{ .attrs = it87_attributes_fan[2] },
 	{ .attrs = it87_attributes_fan[3] },
 	{ .attrs = it87_attributes_fan[4] },
+	{ .attrs = it87_attributes_fan[5] },
 };
 
 static const struct attribute *it87_attributes_fan_div[] = {
@@ -1693,6 +1789,7 @@ static struct attribute *it87_attributes_fan_beep[] = {
 	&sensor_dev_attr_fan3_beep.dev_attr.attr,
 	&sensor_dev_attr_fan4_beep.dev_attr.attr,
 	&sensor_dev_attr_fan5_beep.dev_attr.attr,
+	&sensor_dev_attr_fan6_beep.dev_attr.attr,
 };
 
 static struct attribute *it87_attributes_vid[] = {
@@ -1724,6 +1821,7 @@ static int __init it87_find(unsigned short *address,
 	int err;
 	u16 chip_type;
 	const char *board_vendor, *board_name;
+	const struct it87_devices *config;
 
 	err = superio_enter();
 	if (err)
@@ -1761,16 +1859,28 @@ static int __init it87_find(unsigned short *address,
 	case IT8772E_DEVID:
 		sio_data->type = it8772;
 		break;
+	case IT8781F_DEVID:
+		sio_data->type = it8781;
+		break;
 	case IT8782F_DEVID:
 		sio_data->type = it8782;
 		break;
 	case IT8783E_DEVID:
 		sio_data->type = it8783;
 		break;
+	case IT8786E_DEVID:
+		sio_data->type = it8786;
+		break;
+	case IT8790E_DEVID:
+		sio_data->type = it8790;
+		break;
 	case IT8603E_DEVID:
 	case IT8623E_DEVID:
 		sio_data->type = it8603;
 		break;
+	case IT8620E_DEVID:
+		sio_data->type = it8620;
+		break;
 	case 0xffff:	/* No device at all */
 		goto exit;
 	default:
@@ -1792,30 +1902,34 @@ static int __init it87_find(unsigned short *address,
 
 	err = 0;
 	sio_data->revision = superio_inb(DEVREV) & 0x0f;
-	pr_info("Found IT%04x%c chip at 0x%x, revision %d\n", chip_type,
-		chip_type == 0x8771 || chip_type == 0x8772 ||
-		chip_type == 0x8603 ? 'E' : 'F', *address,
-		sio_data->revision);
+	pr_info("Found IT%04x%s chip at 0x%x, revision %d\n", chip_type,
+		it87_devices[sio_data->type].suffix,
+		*address, sio_data->revision);
+
+	config = &it87_devices[sio_data->type];
+
+	/* in7 (VSB or VCCH5V) is always internal on some chips */
+	if (has_in7_internal(config))
+		sio_data->internal |= (1 << 1);
 
 	/* in8 (Vbat) is always internal */
-	sio_data->internal = (1 << 2);
+	sio_data->internal |= (1 << 2);
+
 	/* Only the IT8603E has in9 */
 	if (sio_data->type != it8603)
 		sio_data->skip_in |= (1 << 9);
 
-	/* Read GPIO config and VID value from LDN 7 (GPIO) */
-	if (sio_data->type == it87) {
-		/* The IT8705F doesn't have VID pins at all */
+	if (!has_vid(config))
 		sio_data->skip_vid = 1;
 
+	/* Read GPIO config and VID value from LDN 7 (GPIO) */
+	if (sio_data->type == it87) {
 		/* The IT8705F has a different LD number for GPIO */
 		superio_select(5);
 		sio_data->beep_pin = superio_inb(IT87_SIO_BEEP_PIN_REG) & 0x3f;
 	} else if (sio_data->type == it8783) {
 		int reg25, reg27, reg2a, reg2c, regef;
 
-		sio_data->skip_vid = 1;	/* No VID */
-
 		superio_select(GPIO);
 
 		reg25 = superio_inb(IT87_SIO_GPIO1_REG);
@@ -1881,7 +1995,6 @@ static int __init it87_find(unsigned short *address,
 	} else if (sio_data->type == it8603) {
 		int reg27, reg29;
 
-		sio_data->skip_vid = 1;	/* No VID */
 		superio_select(GPIO);
 
 		reg27 = superio_inb(IT87_SIO_GPIO3_REG);
@@ -1902,14 +2015,36 @@ static int __init it87_find(unsigned short *address,
 		sio_data->skip_in |= (1 << 5); /* No VIN5 */
 		sio_data->skip_in |= (1 << 6); /* No VIN6 */
 
-		/* no fan4 */
-		sio_data->skip_pwm |= (1 << 3);
-		sio_data->skip_fan |= (1 << 3);
-
-		sio_data->internal |= (1 << 1); /* in7 is VSB */
 		sio_data->internal |= (1 << 3); /* in9 is AVCC */
 
 		sio_data->beep_pin = superio_inb(IT87_SIO_BEEP_PIN_REG) & 0x3f;
+	} else if (sio_data->type == it8620) {
+		int reg;
+
+		superio_select(GPIO);
+
+		/* Check for fan4, fan5 */
+		reg = superio_inb(IT87_SIO_GPIO2_REG);
+		if (!(reg & (1 << 5)))
+			sio_data->skip_fan |= (1 << 3);
+		if (!(reg & (1 << 4)))
+			sio_data->skip_fan |= (1 << 4);
+
+		/* Check for pwm3, fan3 */
+		reg = superio_inb(IT87_SIO_GPIO3_REG);
+		if (reg & (1 << 6))
+			sio_data->skip_pwm |= (1 << 2);
+		if (reg & (1 << 7))
+			sio_data->skip_fan |= (1 << 2);
+
+		/* Check for pwm2, fan2 */
+		reg = superio_inb(IT87_SIO_GPIO5_REG);
+		if (reg & (1 << 1))
+			sio_data->skip_pwm |= (1 << 1);
+		if (reg & (1 << 2))
+			sio_data->skip_fan |= (1 << 1);
+
+		sio_data->beep_pin = superio_inb(IT87_SIO_BEEP_PIN_REG) & 0x3f;
 	} else {
 		int reg;
 		bool uart6;
@@ -1917,15 +2052,7 @@ static int __init it87_find(unsigned short *address,
 		superio_select(GPIO);
 
 		reg = superio_inb(IT87_SIO_GPIO3_REG);
-		if (sio_data->type == it8721 || sio_data->type == it8728 ||
-		    sio_data->type == it8771 || sio_data->type == it8772 ||
-		    sio_data->type == it8782) {
-			/*
-			 * IT8721F/IT8758E, and IT8782F don't have VID pins
-			 * at all, not sure about the IT8728F and compatibles.
-			 */
-			sio_data->skip_vid = 1;
-		} else {
+		if (!sio_data->skip_vid) {
 			/* We need at least 4 VID pins */
 			if (reg & 0x0f) {
 				pr_info("VID is disabled (pins used for GPIO)\n");
@@ -1975,10 +2102,7 @@ static int __init it87_find(unsigned short *address,
 		}
 		if (reg & (1 << 0))
 			sio_data->internal |= (1 << 0);
-		if ((reg & (1 << 1)) || sio_data->type == it8721 ||
-		    sio_data->type == it8728 ||
-		    sio_data->type == it8771 ||
-		    sio_data->type == it8772)
+		if (reg & (1 << 1))
 			sio_data->internal |= (1 << 1);
 
 		/*
@@ -2050,7 +2174,7 @@ static void it87_remove_files(struct device *dev)
 			sysfs_remove_file(&dev->kobj,
 					  it87_attributes_temp_beep[i]);
 	}
-	for (i = 0; i < 5; i++) {
+	for (i = 0; i < 6; i++) {
 		if (!(data->has_fan & (1 << i)))
 			continue;
 		sysfs_remove_group(&dev->kobj, &it87_group_fan[i]);
@@ -2062,7 +2186,7 @@ static void it87_remove_files(struct device *dev)
 					  it87_attributes_fan_div[i]);
 	}
 	for (i = 0; i < 3; i++) {
-		if (sio_data->skip_pwm & (1 << 0))
+		if (sio_data->skip_pwm & (1 << i))
 			continue;
 		sysfs_remove_group(&dev->kobj, &it87_group_pwm[i]);
 		if (has_old_autopwm(data))
@@ -2112,13 +2236,14 @@ static int it87_probe(struct platform_device *pdev)
 	case it87:
 		if (sio_data->revision >= 0x03) {
 			data->features &= ~FEAT_OLD_AUTOPWM;
-			data->features |= FEAT_16BIT_FANS;
+			data->features |= FEAT_FAN16_CONFIG | FEAT_16BIT_FANS;
 		}
 		break;
 	case it8712:
 		if (sio_data->revision >= 0x08) {
 			data->features &= ~FEAT_OLD_AUTOPWM;
-			data->features |= FEAT_16BIT_FANS;
+			data->features |= FEAT_FAN16_CONFIG | FEAT_16BIT_FANS |
+					  FEAT_FIVE_FANS;
 		}
 		break;
 	default:
@@ -2147,7 +2272,8 @@ static int it87_probe(struct platform_device *pdev)
 			data->in_scaled |= (1 << 8);	/* in8 is Vbat */
 		if (sio_data->internal & (1 << 3))
 			data->in_scaled |= (1 << 9);	/* in9 is AVCC */
-	} else if (sio_data->type == it8782 || sio_data->type == it8783) {
+	} else if (sio_data->type == it8781 || sio_data->type == it8782 ||
+		   sio_data->type == it8783) {
 		if (sio_data->internal & (1 << 0))
 			data->in_scaled |= (1 << 3);	/* in3 is VCC5V */
 		if (sio_data->internal & (1 << 1))
@@ -2205,7 +2331,7 @@ static int it87_probe(struct platform_device *pdev)
 
 	/* Do not create fan files for disabled fans */
 	fan_beep_need_rw = 1;
-	for (i = 0; i < 5; i++) {
+	for (i = 0; i < 6; i++) {
 		if (!(data->has_fan & (1 << i)))
 			continue;
 		err = sysfs_create_group(&dev->kobj, &it87_group_fan[i]);
@@ -2450,24 +2576,26 @@ static void it87_init_device(struct platform_device *pdev)
 	}
 	data->has_fan = (data->fan_main_ctrl >> 4) & 0x07;
 
-	/* Set tachometers to 16-bit mode if needed, IT8603E (and IT8728F?)
-	 * has it by default */
-	if (has_16bit_fans(data) && data->type != it8603) {
-		tmp = it87_read_value(data, IT87_REG_FAN_16BIT);
+	tmp = it87_read_value(data, IT87_REG_FAN_16BIT);
+
+	/* Set tachometers to 16-bit mode if needed */
+	if (has_fan16_config(data)) {
 		if (~tmp & 0x07 & data->has_fan) {
 			dev_dbg(&pdev->dev,
 				"Setting fan1-3 to 16-bit mode\n");
 			it87_write_value(data, IT87_REG_FAN_16BIT,
 					 tmp | 0x07);
 		}
-		/* IT8705F, IT8782F, and IT8783E/F only support three fans. */
-		if (data->type != it87 && data->type != it8782 &&
-		    data->type != it8783) {
-			if (tmp & (1 << 4))
-				data->has_fan |= (1 << 3); /* fan4 enabled */
-			if (tmp & (1 << 5))
-				data->has_fan |= (1 << 4); /* fan5 enabled */
-		}
+	}
+
+	/* Check for additional fans */
+	if (has_five_fans(data)) {
+		if (tmp & (1 << 4))
+			data->has_fan |= (1 << 3); /* fan4 enabled */
+		if (tmp & (1 << 5))
+			data->has_fan |= (1 << 4); /* fan5 enabled */
+		if (has_six_fans(data) && (tmp & (1 << 2)))
+			data->has_fan |= (1 << 5); /* fan6 enabled */
 	}
 
 	/* Fan input pins may be used for alternative functions */
@@ -2535,7 +2663,7 @@ static struct it87_data *it87_update_device(struct device *dev)
 		if (data->type == it8603)
 			data->in[9][0] = it87_read_value(data, 0x2f);
 
-		for (i = 0; i < 5; i++) {
+		for (i = 0; i < 6; i++) {
 			/* Skip disabled fans */
 			if (!(data->has_fan & (1 << i)))
 				continue;
diff --git a/drivers/hwmon/jc42.c b/drivers/hwmon/jc42.c
index 996bdfd..9887d32 100644
--- a/drivers/hwmon/jc42.c
+++ b/drivers/hwmon/jc42.c
@@ -87,11 +87,14 @@ static const unsigned short normal_i2c[] = {
 #define AT30TSE004_DEVID_MASK	0xffff
 
 /* IDT */
-#define TS3000B3_DEVID		0x2903  /* Also matches TSE2002B3 */
-#define TS3000B3_DEVID_MASK	0xffff
+#define TSE2004_DEVID		0x2200
+#define TSE2004_DEVID_MASK	0xff00
 
-#define TS3000GB2_DEVID		0x2912  /* Also matches TSE2002GB2 */
-#define TS3000GB2_DEVID_MASK	0xffff
+#define TS3000_DEVID		0x2900  /* Also matches TSE2002 */
+#define TS3000_DEVID_MASK	0xff00
+
+#define TS3001_DEVID		0x3000
+#define TS3001_DEVID_MASK	0xff00
 
 /* Maxim */
 #define MAX6604_DEVID		0x3e00
@@ -152,8 +155,9 @@ static struct jc42_chips jc42_chips[] = {
 	{ ADT_MANID, ADT7408_DEVID, ADT7408_DEVID_MASK },
 	{ ATMEL_MANID, AT30TS00_DEVID, AT30TS00_DEVID_MASK },
 	{ ATMEL_MANID2, AT30TSE004_DEVID, AT30TSE004_DEVID_MASK },
-	{ IDT_MANID, TS3000B3_DEVID, TS3000B3_DEVID_MASK },
-	{ IDT_MANID, TS3000GB2_DEVID, TS3000GB2_DEVID_MASK },
+	{ IDT_MANID, TSE2004_DEVID, TSE2004_DEVID_MASK },
+	{ IDT_MANID, TS3000_DEVID, TS3000_DEVID_MASK },
+	{ IDT_MANID, TS3001_DEVID, TS3001_DEVID_MASK },
 	{ MAX_MANID, MAX6604_DEVID, MAX6604_DEVID_MASK },
 	{ MCP_MANID, MCP9804_DEVID, MCP9804_DEVID_MASK },
 	{ MCP_MANID, MCP98242_DEVID, MCP98242_DEVID_MASK },
diff --git a/drivers/hwmon/nct6775.c b/drivers/hwmon/nct6775.c
index 1be4117..4fcb481 100644
--- a/drivers/hwmon/nct6775.c
+++ b/drivers/hwmon/nct6775.c
@@ -57,6 +57,7 @@
 #include <linux/err.h>
 #include <linux/mutex.h>
 #include <linux/acpi.h>
+#include <linux/dmi.h>
 #include <linux/io.h>
 #include "lm75.h"
 
@@ -880,12 +881,12 @@ struct nct6775_data {
 	u16 have_temp;
 	u16 have_temp_fixed;
 	u16 have_in;
-#ifdef CONFIG_PM
+
 	/* Remember extra register values over suspend/resume */
 	u8 vbat;
 	u8 fandiv1;
 	u8 fandiv2;
-#endif
+	u8 sio_reg_enable;
 };
 
 struct nct6775_sio_data {
@@ -3178,6 +3179,10 @@ nct6775_check_fan_inputs(struct nct6775_data *data)
 	int sioreg = data->sioreg;
 	int regval;
 
+	/* Store SIO_REG_ENABLE for use during resume */
+	superio_select(sioreg, NCT6775_LD_HWM);
+	data->sio_reg_enable = superio_inb(sioreg, SIO_REG_ENABLE);
+
 	/* fan4 and fan5 share some pins with the GPIO and serial flash */
 	if (data->kind == nct6775) {
 		regval = superio_inb(sioreg, 0x2c);
@@ -3195,21 +3200,38 @@ nct6775_check_fan_inputs(struct nct6775_data *data)
 		pwm6pin = false;
 	} else if (data->kind == nct6776) {
 		bool gpok = superio_inb(sioreg, 0x27) & 0x80;
+		const char *board_vendor, *board_name;
 
-		superio_select(sioreg, NCT6775_LD_HWM);
-		regval = superio_inb(sioreg, SIO_REG_ENABLE);
+		board_vendor = dmi_get_system_info(DMI_BOARD_VENDOR);
+		board_name = dmi_get_system_info(DMI_BOARD_NAME);
+
+		if (board_name && board_vendor &&
+		    !strcmp(board_vendor, "ASRock")) {
+			/*
+			 * Auxiliary fan monitoring is not enabled on ASRock
+			 * Z77 Pro4-M if booted in UEFI Ultra-FastBoot mode.
+			 * Observed with BIOS version 2.00.
+			 */
+			if (!strcmp(board_name, "Z77 Pro4-M")) {
+				if ((data->sio_reg_enable & 0xe0) != 0xe0) {
+					data->sio_reg_enable |= 0xe0;
+					superio_outb(sioreg, SIO_REG_ENABLE,
+						     data->sio_reg_enable);
+				}
+			}
+		}
 
-		if (regval & 0x80)
+		if (data->sio_reg_enable & 0x80)
 			fan3pin = gpok;
 		else
 			fan3pin = !(superio_inb(sioreg, 0x24) & 0x40);
 
-		if (regval & 0x40)
+		if (data->sio_reg_enable & 0x40)
 			fan4pin = gpok;
 		else
 			fan4pin = superio_inb(sioreg, 0x1C) & 0x01;
 
-		if (regval & 0x20)
+		if (data->sio_reg_enable & 0x20)
 			fan5pin = gpok;
 		else
 			fan5pin = superio_inb(sioreg, 0x1C) & 0x02;
@@ -3989,8 +4011,7 @@ static void nct6791_enable_io_mapping(int sioaddr)
 	}
 }
 
-#ifdef CONFIG_PM
-static int nct6775_suspend(struct device *dev)
+static int __maybe_unused nct6775_suspend(struct device *dev)
 {
 	struct nct6775_data *data = nct6775_update_device(dev);
 
@@ -4005,22 +4026,29 @@ static int nct6775_suspend(struct device *dev)
 	return 0;
 }
 
-static int nct6775_resume(struct device *dev)
+static int __maybe_unused nct6775_resume(struct device *dev)
 {
 	struct nct6775_data *data = dev_get_drvdata(dev);
+	int sioreg = data->sioreg;
 	int i, j, err = 0;
+	u8 reg;
 
 	mutex_lock(&data->update_lock);
 	data->bank = 0xff;		/* Force initial bank selection */
 
-	if (data->kind == nct6791 || data->kind == nct6792) {
-		err = superio_enter(data->sioreg);
-		if (err)
-			goto abort;
+	err = superio_enter(sioreg);
+	if (err)
+		goto abort;
 
-		nct6791_enable_io_mapping(data->sioreg);
-		superio_exit(data->sioreg);
-	}
+	superio_select(sioreg, NCT6775_LD_HWM);
+	reg = superio_inb(sioreg, SIO_REG_ENABLE);
+	if (reg != data->sio_reg_enable)
+		superio_outb(sioreg, SIO_REG_ENABLE, data->sio_reg_enable);
+
+	if (data->kind == nct6791 || data->kind == nct6792)
+		nct6791_enable_io_mapping(sioreg);
+
+	superio_exit(sioreg);
 
 	/* Restore limits */
 	for (i = 0; i < data->in_num; i++) {
@@ -4066,22 +4094,12 @@ abort:
 	return err;
 }
 
-static const struct dev_pm_ops nct6775_dev_pm_ops = {
-	.suspend = nct6775_suspend,
-	.resume = nct6775_resume,
-	.freeze = nct6775_suspend,
-	.restore = nct6775_resume,
-};
-
-#define NCT6775_DEV_PM_OPS	(&nct6775_dev_pm_ops)
-#else
-#define NCT6775_DEV_PM_OPS	NULL
-#endif /* CONFIG_PM */
+static SIMPLE_DEV_PM_OPS(nct6775_dev_pm_ops, nct6775_suspend, nct6775_resume);
 
 static struct platform_driver nct6775_driver = {
 	.driver = {
 		.name	= DRVNAME,
-		.pm	= NCT6775_DEV_PM_OPS,
+		.pm	= &nct6775_dev_pm_ops,
 	},
 	.probe		= nct6775_probe,
 };
diff --git a/drivers/hwmon/nct7904.c b/drivers/hwmon/nct7904.c
new file mode 100644
index 0000000..b77b82f
--- /dev/null
+++ b/drivers/hwmon/nct7904.c
@@ -0,0 +1,593 @@
+/*
+ * nct7904.c - driver for Nuvoton NCT7904D.
+ *
+ * Copyright (c) 2015 Kontron
+ * Author: Vadim V. Vlasov <vvlasov@dev.rtsoft.ru>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/module.h>
+#include <linux/device.h>
+#include <linux/init.h>
+#include <linux/i2c.h>
+#include <linux/mutex.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+
+#define VENDOR_ID_REG		0x7A	/* Any bank */
+#define NUVOTON_ID		0x50
+#define CHIP_ID_REG		0x7B	/* Any bank */
+#define NCT7904_ID		0xC5
+#define DEVICE_ID_REG		0x7C	/* Any bank */
+
+#define BANK_SEL_REG		0xFF
+#define BANK_0			0x00
+#define BANK_1			0x01
+#define BANK_2			0x02
+#define BANK_3			0x03
+#define BANK_4			0x04
+#define BANK_MAX		0x04
+
+#define FANIN_MAX		12	/* Counted from 1 */
+#define VSEN_MAX		21	/* VSEN1..14, 3VDD, VBAT, V3VSB,
+					   LTD (not a voltage), VSEN17..19 */
+#define FANCTL_MAX		4	/* Counted from 1 */
+#define TCPU_MAX		8	/* Counted from 1 */
+#define TEMP_MAX		4	/* Counted from 1 */
+
+#define VT_ADC_CTRL0_REG	0x20	/* Bank 0 */
+#define VT_ADC_CTRL1_REG	0x21	/* Bank 0 */
+#define VT_ADC_CTRL2_REG	0x22	/* Bank 0 */
+#define FANIN_CTRL0_REG		0x24
+#define FANIN_CTRL1_REG		0x25
+#define DTS_T_CTRL0_REG		0x26
+#define DTS_T_CTRL1_REG		0x27
+#define VT_ADC_MD_REG		0x2E
+
+#define VSEN1_HV_REG		0x40	/* Bank 0; 2 regs (HV/LV) per sensor */
+#define TEMP_CH1_HV_REG		0x42	/* Bank 0; same as VSEN2_HV */
+#define LTD_HV_REG		0x62	/* Bank 0; 2 regs in VSEN range */
+#define FANIN1_HV_REG		0x80	/* Bank 0; 2 regs (HV/LV) per sensor */
+#define T_CPU1_HV_REG		0xA0	/* Bank 0; 2 regs (HV/LV) per sensor */
+
+#define PRTS_REG		0x03	/* Bank 2 */
+#define FANCTL1_FMR_REG		0x00	/* Bank 3; 1 reg per channel */
+#define FANCTL1_OUT_REG		0x10	/* Bank 3; 1 reg per channel */
+
+static const unsigned short normal_i2c[] = {
+	0x2d, 0x2e, I2C_CLIENT_END
+};
+
+struct nct7904_data {
+	struct i2c_client *client;
+	struct mutex bank_lock;
+	int bank_sel;
+	u32 fanin_mask;
+	u32 vsen_mask;
+	u32 tcpu_mask;
+	u8 fan_mode[FANCTL_MAX];
+};
+
+/* Access functions */
+static int nct7904_bank_lock(struct nct7904_data *data, unsigned bank)
+{
+	int ret;
+
+	mutex_lock(&data->bank_lock);
+	if (data->bank_sel == bank)
+		return 0;
+	ret = i2c_smbus_write_byte_data(data->client, BANK_SEL_REG, bank);
+	if (ret == 0)
+		data->bank_sel = bank;
+	else
+		data->bank_sel = -1;
+	return ret;
+}
+
+static inline void nct7904_bank_release(struct nct7904_data *data)
+{
+	mutex_unlock(&data->bank_lock);
+}
+
+/* Read 1-byte register. Returns unsigned reg or -ERRNO on error. */
+static int nct7904_read_reg(struct nct7904_data *data,
+			    unsigned bank, unsigned reg)
+{
+	struct i2c_client *client = data->client;
+	int ret;
+
+	ret = nct7904_bank_lock(data, bank);
+	if (ret == 0)
+		ret = i2c_smbus_read_byte_data(client, reg);
+
+	nct7904_bank_release(data);
+	return ret;
+}
+
+/*
+ * Read 2-byte register. Returns register in big-endian format or
+ * -ERRNO on error.
+ */
+static int nct7904_read_reg16(struct nct7904_data *data,
+			      unsigned bank, unsigned reg)
+{
+	struct i2c_client *client = data->client;
+	int ret, hi;
+
+	ret = nct7904_bank_lock(data, bank);
+	if (ret == 0) {
+		ret = i2c_smbus_read_byte_data(client, reg);
+		if (ret >= 0) {
+			hi = ret;
+			ret = i2c_smbus_read_byte_data(client, reg + 1);
+			if (ret >= 0)
+				ret |= hi << 8;
+		}
+	}
+
+	nct7904_bank_release(data);
+	return ret;
+}
+
+/* Write 1-byte register. Returns 0 or -ERRNO on error. */
+static int nct7904_write_reg(struct nct7904_data *data,
+			     unsigned bank, unsigned reg, u8 val)
+{
+	struct i2c_client *client = data->client;
+	int ret;
+
+	ret = nct7904_bank_lock(data, bank);
+	if (ret == 0)
+		ret = i2c_smbus_write_byte_data(client, reg, val);
+
+	nct7904_bank_release(data);
+	return ret;
+}
+
+/* FANIN ATTR */
+static ssize_t show_fan(struct device *dev,
+			struct device_attribute *devattr, char *buf)
+{
+	int index = to_sensor_dev_attr(devattr)->index;
+	struct nct7904_data *data = dev_get_drvdata(dev);
+	int ret;
+	unsigned cnt, rpm;
+
+	ret = nct7904_read_reg16(data, BANK_0, FANIN1_HV_REG + index * 2);
+	if (ret < 0)
+		return ret;
+	cnt = ((ret & 0xff00) >> 3) | (ret & 0x1f);
+	if (cnt == 0x1fff)
+		rpm = 0;
+	else
+		rpm = 1350000 / cnt;
+	return sprintf(buf, "%u\n", rpm);
+}
+
+static umode_t nct7904_fanin_is_visible(struct kobject *kobj,
+					struct attribute *a, int n)
+{
+	struct device *dev = container_of(kobj, struct device, kobj);
+	struct nct7904_data *data = dev_get_drvdata(dev);
+
+	if (data->fanin_mask & (1 << n))
+		return a->mode;
+	return 0;
+}
+
+static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0);
+static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1);
+static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 2);
+static SENSOR_DEVICE_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 3);
+static SENSOR_DEVICE_ATTR(fan5_input, S_IRUGO, show_fan, NULL, 4);
+static SENSOR_DEVICE_ATTR(fan6_input, S_IRUGO, show_fan, NULL, 5);
+static SENSOR_DEVICE_ATTR(fan7_input, S_IRUGO, show_fan, NULL, 6);
+static SENSOR_DEVICE_ATTR(fan8_input, S_IRUGO, show_fan, NULL, 7);
+static SENSOR_DEVICE_ATTR(fan9_input, S_IRUGO, show_fan, NULL, 8);
+static SENSOR_DEVICE_ATTR(fan10_input, S_IRUGO, show_fan, NULL, 9);
+static SENSOR_DEVICE_ATTR(fan11_input, S_IRUGO, show_fan, NULL, 10);
+static SENSOR_DEVICE_ATTR(fan12_input, S_IRUGO, show_fan, NULL, 11);
+
+static struct attribute *nct7904_fanin_attrs[] = {
+	&sensor_dev_attr_fan1_input.dev_attr.attr,
+	&sensor_dev_attr_fan2_input.dev_attr.attr,
+	&sensor_dev_attr_fan3_input.dev_attr.attr,
+	&sensor_dev_attr_fan4_input.dev_attr.attr,
+	&sensor_dev_attr_fan5_input.dev_attr.attr,
+	&sensor_dev_attr_fan6_input.dev_attr.attr,
+	&sensor_dev_attr_fan7_input.dev_attr.attr,
+	&sensor_dev_attr_fan8_input.dev_attr.attr,
+	&sensor_dev_attr_fan9_input.dev_attr.attr,
+	&sensor_dev_attr_fan10_input.dev_attr.attr,
+	&sensor_dev_attr_fan11_input.dev_attr.attr,
+	&sensor_dev_attr_fan12_input.dev_attr.attr,
+	NULL
+};
+
+static const struct attribute_group nct7904_fanin_group = {
+	.attrs = nct7904_fanin_attrs,
+	.is_visible = nct7904_fanin_is_visible,
+};
+
+/* VSEN ATTR */
+static ssize_t show_voltage(struct device *dev,
+			    struct device_attribute *devattr, char *buf)
+{
+	int index = to_sensor_dev_attr(devattr)->index;
+	struct nct7904_data *data = dev_get_drvdata(dev);
+	int ret;
+	int volt;
+
+	ret = nct7904_read_reg16(data, BANK_0, VSEN1_HV_REG + index * 2);
+	if (ret < 0)
+		return ret;
+	volt = ((ret & 0xff00) >> 5) | (ret & 0x7);
+	if (index < 14)
+		volt *= 2; /* 0.002V scale */
+	else
+		volt *= 6; /* 0.006V scale */
+
+	return sprintf(buf, "%d\n", volt);
+}
+
+static ssize_t show_ltemp(struct device *dev,
+			  struct device_attribute *devattr, char *buf)
+{
+	struct nct7904_data *data = dev_get_drvdata(dev);
+	int ret;
+	int temp;
+
+	ret = nct7904_read_reg16(data, BANK_0, LTD_HV_REG);
+	if (ret < 0)
+		return ret;
+	temp = ((ret & 0xff00) >> 5) | (ret & 0x7);
+	temp = sign_extend32(temp, 10) * 125;
+
+	return sprintf(buf, "%d\n", temp);
+}
+
+static umode_t nct7904_vsen_is_visible(struct kobject *kobj,
+				       struct attribute *a, int n)
+{
+	struct device *dev = container_of(kobj, struct device, kobj);
+	struct nct7904_data *data = dev_get_drvdata(dev);
+
+	if (data->vsen_mask & (1 << n))
+		return a->mode;
+	return 0;
+}
+
+static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_voltage, NULL, 0);
+static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_voltage, NULL, 1);
+static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_voltage, NULL, 2);
+static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, show_voltage, NULL, 3);
+static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, show_voltage, NULL, 4);
+static SENSOR_DEVICE_ATTR(in6_input, S_IRUGO, show_voltage, NULL, 5);
+static SENSOR_DEVICE_ATTR(in7_input, S_IRUGO, show_voltage, NULL, 6);
+static SENSOR_DEVICE_ATTR(in8_input, S_IRUGO, show_voltage, NULL, 7);
+static SENSOR_DEVICE_ATTR(in9_input, S_IRUGO, show_voltage, NULL, 8);
+static SENSOR_DEVICE_ATTR(in10_input, S_IRUGO, show_voltage, NULL, 9);
+static SENSOR_DEVICE_ATTR(in11_input, S_IRUGO, show_voltage, NULL, 10);
+static SENSOR_DEVICE_ATTR(in12_input, S_IRUGO, show_voltage, NULL, 11);
+static SENSOR_DEVICE_ATTR(in13_input, S_IRUGO, show_voltage, NULL, 12);
+static SENSOR_DEVICE_ATTR(in14_input, S_IRUGO, show_voltage, NULL, 13);
+/*
+ * Next 3 voltage sensors have specific names in the Nuvoton doc
+ * (3VDD, VBAT, 3VSB) but we use vacant numbers for them.
+ */
+static SENSOR_DEVICE_ATTR(in15_input, S_IRUGO, show_voltage, NULL, 14);
+static SENSOR_DEVICE_ATTR(in16_input, S_IRUGO, show_voltage, NULL, 15);
+static SENSOR_DEVICE_ATTR(in20_input, S_IRUGO, show_voltage, NULL, 16);
+/* This is not a voltage, but a local temperature sensor. */
+static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_ltemp, NULL, 0);
+static SENSOR_DEVICE_ATTR(in17_input, S_IRUGO, show_voltage, NULL, 18);
+static SENSOR_DEVICE_ATTR(in18_input, S_IRUGO, show_voltage, NULL, 19);
+static SENSOR_DEVICE_ATTR(in19_input, S_IRUGO, show_voltage, NULL, 20);
+
+static struct attribute *nct7904_vsen_attrs[] = {
+	&sensor_dev_attr_in1_input.dev_attr.attr,
+	&sensor_dev_attr_in2_input.dev_attr.attr,
+	&sensor_dev_attr_in3_input.dev_attr.attr,
+	&sensor_dev_attr_in4_input.dev_attr.attr,
+	&sensor_dev_attr_in5_input.dev_attr.attr,
+	&sensor_dev_attr_in6_input.dev_attr.attr,
+	&sensor_dev_attr_in7_input.dev_attr.attr,
+	&sensor_dev_attr_in8_input.dev_attr.attr,
+	&sensor_dev_attr_in9_input.dev_attr.attr,
+	&sensor_dev_attr_in10_input.dev_attr.attr,
+	&sensor_dev_attr_in11_input.dev_attr.attr,
+	&sensor_dev_attr_in12_input.dev_attr.attr,
+	&sensor_dev_attr_in13_input.dev_attr.attr,
+	&sensor_dev_attr_in14_input.dev_attr.attr,
+	&sensor_dev_attr_in15_input.dev_attr.attr,
+	&sensor_dev_attr_in16_input.dev_attr.attr,
+	&sensor_dev_attr_in20_input.dev_attr.attr,
+	&sensor_dev_attr_temp1_input.dev_attr.attr,
+	&sensor_dev_attr_in17_input.dev_attr.attr,
+	&sensor_dev_attr_in18_input.dev_attr.attr,
+	&sensor_dev_attr_in19_input.dev_attr.attr,
+	NULL
+};
+
+static const struct attribute_group nct7904_vsen_group = {
+	.attrs = nct7904_vsen_attrs,
+	.is_visible = nct7904_vsen_is_visible,
+};
+
+/* CPU_TEMP ATTR */
+static ssize_t show_tcpu(struct device *dev,
+			 struct device_attribute *devattr, char *buf)
+{
+	int index = to_sensor_dev_attr(devattr)->index;
+	struct nct7904_data *data = dev_get_drvdata(dev);
+	int ret;
+	int temp;
+
+	ret = nct7904_read_reg16(data, BANK_0, T_CPU1_HV_REG + index * 2);
+	if (ret < 0)
+		return ret;
+
+	temp = ((ret & 0xff00) >> 5) | (ret & 0x7);
+	temp = sign_extend32(temp, 10) * 125;
+	return sprintf(buf, "%d\n", temp);
+}
+
+static umode_t nct7904_tcpu_is_visible(struct kobject *kobj,
+				       struct attribute *a, int n)
+{
+	struct device *dev = container_of(kobj, struct device, kobj);
+	struct nct7904_data *data = dev_get_drvdata(dev);
+
+	if (data->tcpu_mask & (1 << n))
+		return a->mode;
+	return 0;
+}
+
+/* "temp1_input" reserved for local temp */
+static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_tcpu, NULL, 0);
+static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO, show_tcpu, NULL, 1);
+static SENSOR_DEVICE_ATTR(temp4_input, S_IRUGO, show_tcpu, NULL, 2);
+static SENSOR_DEVICE_ATTR(temp5_input, S_IRUGO, show_tcpu, NULL, 3);
+static SENSOR_DEVICE_ATTR(temp6_input, S_IRUGO, show_tcpu, NULL, 4);
+static SENSOR_DEVICE_ATTR(temp7_input, S_IRUGO, show_tcpu, NULL, 5);
+static SENSOR_DEVICE_ATTR(temp8_input, S_IRUGO, show_tcpu, NULL, 6);
+static SENSOR_DEVICE_ATTR(temp9_input, S_IRUGO, show_tcpu, NULL, 7);
+
+static struct attribute *nct7904_tcpu_attrs[] = {
+	&sensor_dev_attr_temp2_input.dev_attr.attr,
+	&sensor_dev_attr_temp3_input.dev_attr.attr,
+	&sensor_dev_attr_temp4_input.dev_attr.attr,
+	&sensor_dev_attr_temp5_input.dev_attr.attr,
+	&sensor_dev_attr_temp6_input.dev_attr.attr,
+	&sensor_dev_attr_temp7_input.dev_attr.attr,
+	&sensor_dev_attr_temp8_input.dev_attr.attr,
+	&sensor_dev_attr_temp9_input.dev_attr.attr,
+	NULL
+};
+
+static const struct attribute_group nct7904_tcpu_group = {
+	.attrs = nct7904_tcpu_attrs,
+	.is_visible = nct7904_tcpu_is_visible,
+};
+
+/* PWM ATTR */
+static ssize_t store_pwm(struct device *dev, struct device_attribute *devattr,
+			 const char *buf, size_t count)
+{
+	int index = to_sensor_dev_attr(devattr)->index;
+	struct nct7904_data *data = dev_get_drvdata(dev);
+	unsigned long val;
+	int ret;
+
+	if (kstrtoul(buf, 10, &val) < 0)
+		return -EINVAL;
+	if (val > 255)
+		return -EINVAL;
+
+	ret = nct7904_write_reg(data, BANK_3, FANCTL1_OUT_REG + index, val);
+
+	return ret ? ret : count;
+}
+
+static ssize_t show_pwm(struct device *dev,
+			struct device_attribute *devattr, char *buf)
+{
+	int index = to_sensor_dev_attr(devattr)->index;
+	struct nct7904_data *data = dev_get_drvdata(dev);
+	int val;
+
+	val = nct7904_read_reg(data, BANK_3, FANCTL1_OUT_REG + index);
+	if (val < 0)
+		return val;
+
+	return sprintf(buf, "%d\n", val);
+}
+
+static ssize_t store_mode(struct device *dev, struct device_attribute *devattr,
+			  const char *buf, size_t count)
+{
+	int index = to_sensor_dev_attr(devattr)->index;
+	struct nct7904_data *data = dev_get_drvdata(dev);
+	unsigned long val;
+	int ret;
+
+	if (kstrtoul(buf, 10, &val) < 0)
+		return -EINVAL;
+	if (val > 1 || (val && !data->fan_mode[index]))
+		return -EINVAL;
+
+	ret = nct7904_write_reg(data, BANK_3, FANCTL1_FMR_REG + index,
+				val ? data->fan_mode[index] : 0);
+
+	return ret ? ret : count;
+}
+
+/* Return 0 for manual mode or 1 for SmartFan mode */
+static ssize_t show_mode(struct device *dev,
+			 struct device_attribute *devattr, char *buf)
+{
+	int index = to_sensor_dev_attr(devattr)->index;
+	struct nct7904_data *data = dev_get_drvdata(dev);
+	int val;
+
+	val = nct7904_read_reg(data, BANK_3, FANCTL1_FMR_REG + index);
+	if (val < 0)
+		return val;
+
+	return sprintf(buf, "%d\n", val ? 1 : 0);
+}
+
+/* 2 attributes per channel: pwm and mode */
+static SENSOR_DEVICE_ATTR(fan1_pwm, S_IRUGO | S_IWUSR,
+			show_pwm, store_pwm, 0);
+static SENSOR_DEVICE_ATTR(fan1_mode, S_IRUGO | S_IWUSR,
+			show_mode, store_mode, 0);
+static SENSOR_DEVICE_ATTR(fan2_pwm, S_IRUGO | S_IWUSR,
+			show_pwm, store_pwm, 1);
+static SENSOR_DEVICE_ATTR(fan2_mode, S_IRUGO | S_IWUSR,
+			show_mode, store_mode, 1);
+static SENSOR_DEVICE_ATTR(fan3_pwm, S_IRUGO | S_IWUSR,
+			show_pwm, store_pwm, 2);
+static SENSOR_DEVICE_ATTR(fan3_mode, S_IRUGO | S_IWUSR,
+			show_mode, store_mode, 2);
+static SENSOR_DEVICE_ATTR(fan4_pwm, S_IRUGO | S_IWUSR,
+			show_pwm, store_pwm, 3);
+static SENSOR_DEVICE_ATTR(fan4_mode, S_IRUGO | S_IWUSR,
+			show_mode, store_mode, 3);
+
+static struct attribute *nct7904_fanctl_attrs[] = {
+	&sensor_dev_attr_fan1_pwm.dev_attr.attr,
+	&sensor_dev_attr_fan1_mode.dev_attr.attr,
+	&sensor_dev_attr_fan2_pwm.dev_attr.attr,
+	&sensor_dev_attr_fan2_mode.dev_attr.attr,
+	&sensor_dev_attr_fan3_pwm.dev_attr.attr,
+	&sensor_dev_attr_fan3_mode.dev_attr.attr,
+	&sensor_dev_attr_fan4_pwm.dev_attr.attr,
+	&sensor_dev_attr_fan4_mode.dev_attr.attr,
+	NULL
+};
+
+static const struct attribute_group nct7904_fanctl_group = {
+	.attrs = nct7904_fanctl_attrs,
+};
+
+static const struct attribute_group *nct7904_groups[] = {
+	&nct7904_fanin_group,
+	&nct7904_vsen_group,
+	&nct7904_tcpu_group,
+	&nct7904_fanctl_group,
+	NULL
+};
+
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int nct7904_detect(struct i2c_client *client,
+			  struct i2c_board_info *info)
+{
+	struct i2c_adapter *adapter = client->adapter;
+
+	if (!i2c_check_functionality(adapter,
+				     I2C_FUNC_SMBUS_READ_BYTE |
+				     I2C_FUNC_SMBUS_WRITE_BYTE_DATA))
+		return -ENODEV;
+
+	/* Determine the chip type. */
+	if (i2c_smbus_read_byte_data(client, VENDOR_ID_REG) != NUVOTON_ID ||
+	    i2c_smbus_read_byte_data(client, CHIP_ID_REG) != NCT7904_ID ||
+	    (i2c_smbus_read_byte_data(client, DEVICE_ID_REG) & 0xf0) != 0x50 ||
+	    (i2c_smbus_read_byte_data(client, BANK_SEL_REG) & 0xf8) != 0x00)
+		return -ENODEV;
+
+	strlcpy(info->type, "nct7904", I2C_NAME_SIZE);
+
+	return 0;
+}
+
+static int nct7904_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id)
+{
+	struct nct7904_data *data;
+	struct device *hwmon_dev;
+	struct device *dev = &client->dev;
+	int ret, i;
+	u32 mask;
+
+	data = devm_kzalloc(dev, sizeof(struct nct7904_data), GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
+
+	data->client = client;
+	mutex_init(&data->bank_lock);
+	data->bank_sel = -1;
+
+	/* Setup sensor groups. */
+	/* FANIN attributes */
+	ret = nct7904_read_reg16(data, BANK_0, FANIN_CTRL0_REG);
+	if (ret < 0)
+		return ret;
+	data->fanin_mask = (ret >> 8) | ((ret & 0xff) << 8);
+
+	/*
+	 * VSEN attributes
+	 *
+	 * Note: voltage sensors overlap with external temperature
+	 * sensors. So, if we ever decide to support the latter
+	 * we will have to adjust 'vsen_mask' accordingly.
+	 */
+	mask = 0;
+	ret = nct7904_read_reg16(data, BANK_0, VT_ADC_CTRL0_REG);
+	if (ret >= 0)
+		mask = (ret >> 8) | ((ret & 0xff) << 8);
+	ret = nct7904_read_reg(data, BANK_0, VT_ADC_CTRL2_REG);
+	if (ret >= 0)
+		mask |= (ret << 16);
+	data->vsen_mask = mask;
+
+	/* CPU_TEMP attributes */
+	ret = nct7904_read_reg16(data, BANK_0, DTS_T_CTRL0_REG);
+	if (ret < 0)
+		return ret;
+	data->tcpu_mask = ((ret >> 8) & 0xf) | ((ret & 0xf) << 4);
+
+	for (i = 0; i < FANCTL_MAX; i++) {
+		ret = nct7904_read_reg(data, BANK_3, FANCTL1_FMR_REG + i);
+		if (ret < 0)
+			return ret;
+		data->fan_mode[i] = ret;
+	}
+
+	hwmon_dev =
+		devm_hwmon_device_register_with_groups(dev, client->name, data,
+						       nct7904_groups);
+	return PTR_ERR_OR_ZERO(hwmon_dev);
+}
+
+static const struct i2c_device_id nct7904_id[] = {
+	{"nct7904", 0},
+	{}
+};
+
+static struct i2c_driver nct7904_driver = {
+	.class = I2C_CLASS_HWMON,
+	.driver = {
+		.name = "nct7904",
+	},
+	.probe = nct7904_probe,
+	.id_table = nct7904_id,
+	.detect = nct7904_detect,
+	.address_list = normal_i2c,
+};
+
+module_i2c_driver(nct7904_driver);
+
+MODULE_AUTHOR("Vadim V. Vlasov <vvlasov@dev.rtsoft.ru>");
+MODULE_DESCRIPTION("Hwmon driver for NUVOTON NCT7904");
+MODULE_LICENSE("GPL");
diff --git a/drivers/hwmon/pwm-fan.c b/drivers/hwmon/pwm-fan.c
index 1991d903..2d9a712 100644
--- a/drivers/hwmon/pwm-fan.c
+++ b/drivers/hwmon/pwm-fan.c
@@ -24,55 +24,78 @@
 #include <linux/platform_device.h>
 #include <linux/pwm.h>
 #include <linux/sysfs.h>
+#include <linux/thermal.h>
 
 #define MAX_PWM 255
 
 struct pwm_fan_ctx {
 	struct mutex lock;
 	struct pwm_device *pwm;
-	unsigned char pwm_value;
+	unsigned int pwm_value;
+	unsigned int pwm_fan_state;
+	unsigned int pwm_fan_max_state;
+	unsigned int *pwm_fan_cooling_levels;
+	struct thermal_cooling_device *cdev;
 };
 
-static ssize_t set_pwm(struct device *dev, struct device_attribute *attr,
-		       const char *buf, size_t count)
+static int  __set_pwm(struct pwm_fan_ctx *ctx, unsigned long pwm)
 {
-	struct pwm_fan_ctx *ctx = dev_get_drvdata(dev);
-	unsigned long pwm, duty;
-	ssize_t ret;
-
-	if (kstrtoul(buf, 10, &pwm) || pwm > MAX_PWM)
-		return -EINVAL;
+	unsigned long duty;
+	int ret = 0;
 
 	mutex_lock(&ctx->lock);
-
 	if (ctx->pwm_value == pwm)
-		goto exit_set_pwm_no_change;
-
-	if (pwm == 0) {
-		pwm_disable(ctx->pwm);
-		goto exit_set_pwm;
-	}
+		goto exit_set_pwm_err;
 
 	duty = DIV_ROUND_UP(pwm * (ctx->pwm->period - 1), MAX_PWM);
 	ret = pwm_config(ctx->pwm, duty, ctx->pwm->period);
 	if (ret)
 		goto exit_set_pwm_err;
 
+	if (pwm == 0)
+		pwm_disable(ctx->pwm);
+
 	if (ctx->pwm_value == 0) {
 		ret = pwm_enable(ctx->pwm);
 		if (ret)
 			goto exit_set_pwm_err;
 	}
 
-exit_set_pwm:
 	ctx->pwm_value = pwm;
-exit_set_pwm_no_change:
-	ret = count;
 exit_set_pwm_err:
 	mutex_unlock(&ctx->lock);
 	return ret;
 }
 
+static void pwm_fan_update_state(struct pwm_fan_ctx *ctx, unsigned long pwm)
+{
+	int i;
+
+	for (i = 0; i < ctx->pwm_fan_max_state; ++i)
+		if (pwm < ctx->pwm_fan_cooling_levels[i + 1])
+			break;
+
+	ctx->pwm_fan_state = i;
+}
+
+static ssize_t set_pwm(struct device *dev, struct device_attribute *attr,
+		       const char *buf, size_t count)
+{
+	struct pwm_fan_ctx *ctx = dev_get_drvdata(dev);
+	unsigned long pwm;
+	int ret;
+
+	if (kstrtoul(buf, 10, &pwm) || pwm > MAX_PWM)
+		return -EINVAL;
+
+	ret = __set_pwm(ctx, pwm);
+	if (ret)
+		return ret;
+
+	pwm_fan_update_state(ctx, pwm);
+	return count;
+}
+
 static ssize_t show_pwm(struct device *dev,
 			struct device_attribute *attr, char *buf)
 {
@@ -91,10 +114,108 @@ static struct attribute *pwm_fan_attrs[] = {
 
 ATTRIBUTE_GROUPS(pwm_fan);
 
+/* thermal cooling device callbacks */
+static int pwm_fan_get_max_state(struct thermal_cooling_device *cdev,
+				 unsigned long *state)
+{
+	struct pwm_fan_ctx *ctx = cdev->devdata;
+
+	if (!ctx)
+		return -EINVAL;
+
+	*state = ctx->pwm_fan_max_state;
+
+	return 0;
+}
+
+static int pwm_fan_get_cur_state(struct thermal_cooling_device *cdev,
+				 unsigned long *state)
+{
+	struct pwm_fan_ctx *ctx = cdev->devdata;
+
+	if (!ctx)
+		return -EINVAL;
+
+	*state = ctx->pwm_fan_state;
+
+	return 0;
+}
+
+static int
+pwm_fan_set_cur_state(struct thermal_cooling_device *cdev, unsigned long state)
+{
+	struct pwm_fan_ctx *ctx = cdev->devdata;
+	int ret;
+
+	if (!ctx || (state > ctx->pwm_fan_max_state))
+		return -EINVAL;
+
+	if (state == ctx->pwm_fan_state)
+		return 0;
+
+	ret = __set_pwm(ctx, ctx->pwm_fan_cooling_levels[state]);
+	if (ret) {
+		dev_err(&cdev->device, "Cannot set pwm!\n");
+		return ret;
+	}
+
+	ctx->pwm_fan_state = state;
+
+	return ret;
+}
+
+static const struct thermal_cooling_device_ops pwm_fan_cooling_ops = {
+	.get_max_state = pwm_fan_get_max_state,
+	.get_cur_state = pwm_fan_get_cur_state,
+	.set_cur_state = pwm_fan_set_cur_state,
+};
+
+static int pwm_fan_of_get_cooling_data(struct device *dev,
+				       struct pwm_fan_ctx *ctx)
+{
+	struct device_node *np = dev->of_node;
+	int num, i, ret;
+
+	if (!of_find_property(np, "cooling-levels", NULL))
+		return 0;
+
+	ret = of_property_count_u32_elems(np, "cooling-levels");
+	if (ret <= 0) {
+		dev_err(dev, "Wrong data!\n");
+		return ret ? : -EINVAL;
+	}
+
+	num = ret;
+	ctx->pwm_fan_cooling_levels = devm_kzalloc(dev, num * sizeof(u32),
+						   GFP_KERNEL);
+	if (!ctx->pwm_fan_cooling_levels)
+		return -ENOMEM;
+
+	ret = of_property_read_u32_array(np, "cooling-levels",
+					 ctx->pwm_fan_cooling_levels, num);
+	if (ret) {
+		dev_err(dev, "Property 'cooling-levels' cannot be read!\n");
+		return ret;
+	}
+
+	for (i = 0; i < num; i++) {
+		if (ctx->pwm_fan_cooling_levels[i] > MAX_PWM) {
+			dev_err(dev, "PWM fan state[%d]:%d > %d\n", i,
+				ctx->pwm_fan_cooling_levels[i], MAX_PWM);
+			return -EINVAL;
+		}
+	}
+
+	ctx->pwm_fan_max_state = num - 1;
+
+	return 0;
+}
+
 static int pwm_fan_probe(struct platform_device *pdev)
 {
-	struct device *hwmon;
+	struct thermal_cooling_device *cdev;
 	struct pwm_fan_ctx *ctx;
+	struct device *hwmon;
 	int duty_cycle;
 	int ret;
 
@@ -136,6 +257,26 @@ static int pwm_fan_probe(struct platform_device *pdev)
 		pwm_disable(ctx->pwm);
 		return PTR_ERR(hwmon);
 	}
+
+	ret = pwm_fan_of_get_cooling_data(&pdev->dev, ctx);
+	if (ret)
+		return ret;
+
+	ctx->pwm_fan_state = ctx->pwm_fan_max_state;
+	if (IS_ENABLED(CONFIG_THERMAL)) {
+		cdev = thermal_of_cooling_device_register(pdev->dev.of_node,
+							  "pwm-fan", ctx,
+							  &pwm_fan_cooling_ops);
+		if (IS_ERR(cdev)) {
+			dev_err(&pdev->dev,
+				"Failed to register pwm-fan as cooling device");
+			pwm_disable(ctx->pwm);
+			return PTR_ERR(cdev);
+		}
+		ctx->cdev = cdev;
+		thermal_cdev_update(cdev);
+	}
+
 	return 0;
 }
 
@@ -143,6 +284,7 @@ static int pwm_fan_remove(struct platform_device *pdev)
 {
 	struct pwm_fan_ctx *ctx = platform_get_drvdata(pdev);
 
+	thermal_cooling_device_unregister(ctx->cdev);
 	if (ctx->pwm_value)
 		pwm_disable(ctx->pwm);
 	return 0;
@@ -177,7 +319,7 @@ static int pwm_fan_resume(struct device *dev)
 
 static SIMPLE_DEV_PM_OPS(pwm_fan_pm, pwm_fan_suspend, pwm_fan_resume);
 
-static struct of_device_id of_pwm_fan_match[] = {
+static const struct of_device_id of_pwm_fan_match[] = {
 	{ .compatible = "pwm-fan", },
 	{},
 };
diff --git a/drivers/hwmon/vexpress.c b/drivers/hwmon/vexpress.c
index cf1848b..8ba419d 100644
--- a/drivers/hwmon/vexpress.c
+++ b/drivers/hwmon/vexpress.c
@@ -193,7 +193,7 @@ static struct vexpress_hwmon_type vexpress_hwmon_energy = {
 	},
 };
 
-static struct of_device_id vexpress_hwmon_of_match[] = {
+static const struct of_device_id vexpress_hwmon_of_match[] = {
 #if !defined(CONFIG_REGULATOR_VEXPRESS)
 	{
 		.compatible = "arm,vexpress-volt",
diff --git a/drivers/i2c/busses/i2c-designware-baytrail.c b/drivers/i2c/busses/i2c-designware-baytrail.c
index 5f1ff4c..7d7ae97 100644
--- a/drivers/i2c/busses/i2c-designware-baytrail.c
+++ b/drivers/i2c/busses/i2c-designware-baytrail.c
@@ -17,27 +17,31 @@
 #include <linux/acpi.h>
 #include <linux/i2c.h>
 #include <linux/interrupt.h>
+
 #include <asm/iosf_mbi.h>
+
 #include "i2c-designware-core.h"
 
 #define SEMAPHORE_TIMEOUT	100
 #define PUNIT_SEMAPHORE		0x7
+#define PUNIT_SEMAPHORE_BIT	BIT(0)
+#define PUNIT_SEMAPHORE_ACQUIRE	BIT(1)
 
 static unsigned long acquired;
 
 static int get_sem(struct device *dev, u32 *sem)
 {
-	u32 reg_val;
+	u32 data;
 	int ret;
 
 	ret = iosf_mbi_read(BT_MBI_UNIT_PMC, BT_MBI_BUNIT_READ, PUNIT_SEMAPHORE,
-			    &reg_val);
+				&data);
 	if (ret) {
 		dev_err(dev, "iosf failed to read punit semaphore\n");
 		return ret;
 	}
 
-	*sem = reg_val & 0x1;
+	*sem = data & PUNIT_SEMAPHORE_BIT;
 
 	return 0;
 }
@@ -52,27 +56,29 @@ static void reset_semaphore(struct device *dev)
 		return;
 	}
 
-	data = data & 0xfffffffe;
+	data &= ~PUNIT_SEMAPHORE_BIT;
 	if (iosf_mbi_write(BT_MBI_UNIT_PMC, BT_MBI_BUNIT_WRITE,
-				 PUNIT_SEMAPHORE, data))
+				PUNIT_SEMAPHORE, data))
 		dev_err(dev, "iosf failed to reset punit semaphore during write\n");
 }
 
-int baytrail_i2c_acquire(struct dw_i2c_dev *dev)
+static int baytrail_i2c_acquire(struct dw_i2c_dev *dev)
 {
-	u32 sem = 0;
+	u32 sem;
 	int ret;
 	unsigned long start, end;
 
+	might_sleep();
+
 	if (!dev || !dev->dev)
 		return -ENODEV;
 
-	if (!dev->acquire_lock)
+	if (!dev->release_lock)
 		return 0;
 
-	/* host driver writes 0x2 to side band semaphore register */
+	/* host driver writes to side band semaphore register */
 	ret = iosf_mbi_write(BT_MBI_UNIT_PMC, BT_MBI_BUNIT_WRITE,
-				 PUNIT_SEMAPHORE, 0x2);
+				PUNIT_SEMAPHORE, PUNIT_SEMAPHORE_ACQUIRE);
 	if (ret) {
 		dev_err(dev->dev, "iosf punit semaphore request failed\n");
 		return ret;
@@ -81,7 +87,7 @@ int baytrail_i2c_acquire(struct dw_i2c_dev *dev)
 	/* host driver waits for bit 0 to be set in semaphore register */
 	start = jiffies;
 	end = start + msecs_to_jiffies(SEMAPHORE_TIMEOUT);
-	while (!time_after(jiffies, end)) {
+	do {
 		ret = get_sem(dev->dev, &sem);
 		if (!ret && sem) {
 			acquired = jiffies;
@@ -91,14 +97,14 @@ int baytrail_i2c_acquire(struct dw_i2c_dev *dev)
 		}
 
 		usleep_range(1000, 2000);
-	}
+	} while (time_before(jiffies, end));
 
 	dev_err(dev->dev, "punit semaphore timed out, resetting\n");
 	reset_semaphore(dev->dev);
 
 	ret = iosf_mbi_read(BT_MBI_UNIT_PMC, BT_MBI_BUNIT_READ,
-		PUNIT_SEMAPHORE, &sem);
-	if (!ret)
+				PUNIT_SEMAPHORE, &sem);
+	if (ret)
 		dev_err(dev->dev, "iosf failed to read punit semaphore\n");
 	else
 		dev_err(dev->dev, "PUNIT SEM: %d\n", sem);
@@ -107,9 +113,8 @@ int baytrail_i2c_acquire(struct dw_i2c_dev *dev)
 
 	return -ETIMEDOUT;
 }
-EXPORT_SYMBOL(baytrail_i2c_acquire);
 
-void baytrail_i2c_release(struct dw_i2c_dev *dev)
+static void baytrail_i2c_release(struct dw_i2c_dev *dev)
 {
 	if (!dev || !dev->dev)
 		return;
@@ -121,7 +126,6 @@ void baytrail_i2c_release(struct dw_i2c_dev *dev)
 	dev_dbg(dev->dev, "punit semaphore held for %ums\n",
 		jiffies_to_msecs(jiffies - acquired));
 }
-EXPORT_SYMBOL(baytrail_i2c_release);
 
 int i2c_dw_eval_lock_support(struct dw_i2c_dev *dev)
 {
@@ -137,7 +141,6 @@ int i2c_dw_eval_lock_support(struct dw_i2c_dev *dev)
 		return 0;
 
 	status = acpi_evaluate_integer(handle, "_SEM", NULL, &shared_host);
-
 	if (ACPI_FAILURE(status))
 		return 0;
 
@@ -153,7 +156,6 @@ int i2c_dw_eval_lock_support(struct dw_i2c_dev *dev)
 
 	return 0;
 }
-EXPORT_SYMBOL(i2c_dw_eval_lock_support);
 
 MODULE_AUTHOR("David E. Box <david.e.box@linux.intel.com>");
 MODULE_DESCRIPTION("Baytrail I2C Semaphore driver");
diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
index 210cf48..edf274c 100644
--- a/drivers/i2c/i2c-core.c
+++ b/drivers/i2c/i2c-core.c
@@ -679,9 +679,6 @@ static int i2c_device_remove(struct device *dev)
 		status = driver->remove(client);
 	}
 
-	if (dev->of_node)
-		irq_dispose_mapping(client->irq);
-
 	dev_pm_domain_detach(&client->dev, true);
 	return status;
 }
diff --git a/drivers/ide/ide-lib.c b/drivers/ide/ide-lib.c
index d9c9829..e1180fa 100644
--- a/drivers/ide/ide-lib.c
+++ b/drivers/ide/ide-lib.c
@@ -148,8 +148,8 @@ u8 ide_dump_status(ide_drive_t *drive, const char *msg, u8 stat)
 			printk(KERN_CONT "DataRequest ");
 		if (stat & ATA_CORR)
 			printk(KERN_CONT "CorrectedError ");
-		if (stat & ATA_IDX)
-			printk(KERN_CONT "Index ");
+		if (stat & ATA_SENSE)
+			printk(KERN_CONT "Sense ");
 		if (stat & ATA_ERR)
 			printk(KERN_CONT "Error ");
 	}
diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c
index a3d3b17..0b63fac 100644
--- a/drivers/ide/ide-probe.c
+++ b/drivers/ide/ide-probe.c
@@ -273,7 +273,7 @@ int ide_dev_read_id(ide_drive_t *drive, u8 cmd, u16 *id, int irq_ctx)
 	    (hwif->host_flags & IDE_HFLAG_BROKEN_ALTSTATUS) == 0) {
 		a = tp_ops->read_altstatus(hwif);
 		s = tp_ops->read_status(hwif);
-		if ((a ^ s) & ~ATA_IDX)
+		if ((a ^ s) & ~ATA_SENSE)
 			/* ancient Seagate drives, broken interfaces */
 			printk(KERN_INFO "%s: probing with STATUS(0x%02x) "
 					 "instead of ALTSTATUS(0x%02x)\n",
diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c
index 1793aea..6eb738c 100644
--- a/drivers/ide/ide-tape.c
+++ b/drivers/ide/ide-tape.c
@@ -1793,11 +1793,11 @@ static void idetape_setup(ide_drive_t *drive, idetape_tape_t *tape, int minor)
 	tape->best_dsc_rw_freq = clamp_t(unsigned long, t, IDETAPE_DSC_RW_MIN,
 					 IDETAPE_DSC_RW_MAX);
 	printk(KERN_INFO "ide-tape: %s <-> %s: %dKBps, %d*%dkB buffer, "
-		"%lums tDSC%s\n",
+		"%ums tDSC%s\n",
 		drive->name, tape->name, *(u16 *)&tape->caps[14],
 		(*(u16 *)&tape->caps[16] * 512) / tape->buffer_size,
 		tape->buffer_size / 1024,
-		tape->best_dsc_rw_freq * 1000 / HZ,
+		jiffies_to_msecs(tape->best_dsc_rw_freq),
 		(drive->dev_flags & IDE_DFLAG_USING_DMA) ? ", DMA" : "");
 
 	ide_proc_register_driver(drive, tape->driver);
diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c
index b0e5852..5c979d0 100644
--- a/drivers/idle/intel_idle.c
+++ b/drivers/idle/intel_idle.c
@@ -55,7 +55,7 @@
 
 #include <linux/kernel.h>
 #include <linux/cpuidle.h>
-#include <linux/clockchips.h>
+#include <linux/tick.h>
 #include <trace/events/power.h>
 #include <linux/sched.h>
 #include <linux/notifier.h>
@@ -638,12 +638,12 @@ static int intel_idle(struct cpuidle_device *dev,
 		leave_mm(cpu);
 
 	if (!(lapic_timer_reliable_states & (1 << (cstate))))
-		clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_ENTER, &cpu);
+		tick_broadcast_enter();
 
 	mwait_idle_with_hints(eax, ecx);
 
 	if (!(lapic_timer_reliable_states & (1 << (cstate))))
-		clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_EXIT, &cpu);
+		tick_broadcast_exit();
 
 	return index;
 }
@@ -665,13 +665,12 @@ static void intel_idle_freeze(struct cpuidle_device *dev,
 
 static void __setup_broadcast_timer(void *arg)
 {
-	unsigned long reason = (unsigned long)arg;
-	int cpu = smp_processor_id();
-
-	reason = reason ?
-		CLOCK_EVT_NOTIFY_BROADCAST_ON : CLOCK_EVT_NOTIFY_BROADCAST_OFF;
+	unsigned long on = (unsigned long)arg;
 
-	clockevents_notify(reason, &cpu);
+	if (on)
+		tick_broadcast_enable();
+	else
+		tick_broadcast_disable();
 }
 
 static int cpu_hotplug_notify(struct notifier_block *n,
diff --git a/drivers/iio/accel/bma180.c b/drivers/iio/accel/bma180.c
index 1096da3..75c6d21 100644
--- a/drivers/iio/accel/bma180.c
+++ b/drivers/iio/accel/bma180.c
@@ -659,7 +659,7 @@ static irqreturn_t bma180_trigger_handler(int irq, void *p)
 
 	mutex_lock(&data->mutex);
 
-	for_each_set_bit(bit, indio_dev->buffer->scan_mask,
+	for_each_set_bit(bit, indio_dev->active_scan_mask,
 			 indio_dev->masklength) {
 		ret = bma180_get_data_reg(data, bit);
 		if (ret < 0) {
diff --git a/drivers/iio/accel/bmc150-accel.c b/drivers/iio/accel/bmc150-accel.c
index 066d0c0..73e8773 100644
--- a/drivers/iio/accel/bmc150-accel.c
+++ b/drivers/iio/accel/bmc150-accel.c
@@ -70,7 +70,9 @@
 #define BMC150_ACCEL_INT_MAP_0_BIT_SLOPE	BIT(2)
 
 #define BMC150_ACCEL_REG_INT_MAP_1		0x1A
-#define BMC150_ACCEL_INT_MAP_1_BIT_DATA	BIT(0)
+#define BMC150_ACCEL_INT_MAP_1_BIT_DATA		BIT(0)
+#define BMC150_ACCEL_INT_MAP_1_BIT_FWM		BIT(1)
+#define BMC150_ACCEL_INT_MAP_1_BIT_FFULL	BIT(2)
 
 #define BMC150_ACCEL_REG_INT_RST_LATCH		0x21
 #define BMC150_ACCEL_INT_MODE_LATCH_RESET	0x80
@@ -83,7 +85,9 @@
 #define BMC150_ACCEL_INT_EN_BIT_SLP_Z		BIT(2)
 
 #define BMC150_ACCEL_REG_INT_EN_1		0x17
-#define BMC150_ACCEL_INT_EN_BIT_DATA_EN	BIT(4)
+#define BMC150_ACCEL_INT_EN_BIT_DATA_EN		BIT(4)
+#define BMC150_ACCEL_INT_EN_BIT_FFULL_EN	BIT(5)
+#define BMC150_ACCEL_INT_EN_BIT_FWM_EN		BIT(6)
 
 #define BMC150_ACCEL_REG_INT_OUT_CTRL		0x20
 #define BMC150_ACCEL_INT_OUT_CTRL_INT1_LVL	BIT(0)
@@ -122,6 +126,12 @@
 #define BMC150_ACCEL_AXIS_TO_REG(axis)	(BMC150_ACCEL_REG_XOUT_L + (axis * 2))
 #define BMC150_AUTO_SUSPEND_DELAY_MS		2000
 
+#define BMC150_ACCEL_REG_FIFO_STATUS		0x0E
+#define BMC150_ACCEL_REG_FIFO_CONFIG0		0x30
+#define BMC150_ACCEL_REG_FIFO_CONFIG1		0x3E
+#define BMC150_ACCEL_REG_FIFO_DATA		0x3F
+#define BMC150_ACCEL_FIFO_LENGTH		32
+
 enum bmc150_accel_axis {
 	AXIS_X,
 	AXIS_Y,
@@ -147,20 +157,46 @@ struct bmc150_accel_chip_info {
 	const struct bmc150_scale_info scale_table[4];
 };
 
+struct bmc150_accel_interrupt {
+	const struct bmc150_accel_interrupt_info *info;
+	atomic_t users;
+};
+
+struct bmc150_accel_trigger {
+	struct bmc150_accel_data *data;
+	struct iio_trigger *indio_trig;
+	int (*setup)(struct bmc150_accel_trigger *t, bool state);
+	int intr;
+	bool enabled;
+};
+
+enum bmc150_accel_interrupt_id {
+	BMC150_ACCEL_INT_DATA_READY,
+	BMC150_ACCEL_INT_ANY_MOTION,
+	BMC150_ACCEL_INT_WATERMARK,
+	BMC150_ACCEL_INTERRUPTS,
+};
+
+enum bmc150_accel_trigger_id {
+	BMC150_ACCEL_TRIGGER_DATA_READY,
+	BMC150_ACCEL_TRIGGER_ANY_MOTION,
+	BMC150_ACCEL_TRIGGERS,
+};
+
 struct bmc150_accel_data {
 	struct i2c_client *client;
-	struct iio_trigger *dready_trig;
-	struct iio_trigger *motion_trig;
+	struct bmc150_accel_interrupt interrupts[BMC150_ACCEL_INTERRUPTS];
+	atomic_t active_intr;
+	struct bmc150_accel_trigger triggers[BMC150_ACCEL_TRIGGERS];
 	struct mutex mutex;
+	u8 fifo_mode, watermark;
 	s16 buffer[8];
 	u8 bw_bits;
 	u32 slope_dur;
 	u32 slope_thres;
 	u32 range;
 	int ev_enable_state;
-	bool dready_trigger_on;
-	bool motion_trigger_on;
-	int64_t timestamp;
+	int64_t timestamp, old_timestamp;
 	const struct bmc150_accel_chip_info *chip_info;
 };
 
@@ -168,14 +204,14 @@ static const struct {
 	int val;
 	int val2;
 	u8 bw_bits;
-} bmc150_accel_samp_freq_table[] = { {7, 810000, 0x08},
-				     {15, 630000, 0x09},
-				     {31, 250000, 0x0A},
-				     {62, 500000, 0x0B},
-				     {125, 0, 0x0C},
-				     {250, 0, 0x0D},
-				     {500, 0, 0x0E},
-				     {1000, 0, 0x0F} };
+} bmc150_accel_samp_freq_table[] = { {15, 620000, 0x08},
+				     {31, 260000, 0x09},
+				     {62, 500000, 0x0A},
+				     {125, 0, 0x0B},
+				     {250, 0, 0x0C},
+				     {500, 0, 0x0D},
+				     {1000, 0, 0x0E},
+				     {2000, 0, 0x0F} };
 
 static const struct {
 	int bw_bits;
@@ -269,6 +305,46 @@ static int bmc150_accel_set_bw(struct bmc150_accel_data *data, int val,
 	return -EINVAL;
 }
 
+static int bmc150_accel_update_slope(struct bmc150_accel_data *data)
+{
+	int ret, val;
+
+	ret = i2c_smbus_write_byte_data(data->client, BMC150_ACCEL_REG_INT_6,
+					data->slope_thres);
+	if (ret < 0) {
+		dev_err(&data->client->dev, "Error writing reg_int_6\n");
+		return ret;
+	}
+
+	ret = i2c_smbus_read_byte_data(data->client, BMC150_ACCEL_REG_INT_5);
+	if (ret < 0) {
+		dev_err(&data->client->dev, "Error reading reg_int_5\n");
+		return ret;
+	}
+
+	val = (ret & ~BMC150_ACCEL_SLOPE_DUR_MASK) | data->slope_dur;
+	ret = i2c_smbus_write_byte_data(data->client, BMC150_ACCEL_REG_INT_5,
+					val);
+	if (ret < 0) {
+		dev_err(&data->client->dev, "Error write reg_int_5\n");
+		return ret;
+	}
+
+	dev_dbg(&data->client->dev, "%s: %x %x\n", __func__, data->slope_thres,
+		data->slope_dur);
+
+	return ret;
+}
+
+static int bmc150_accel_any_motion_setup(struct bmc150_accel_trigger *t,
+					 bool state)
+{
+	if (state)
+		return bmc150_accel_update_slope(t->data);
+
+	return 0;
+}
+
 static int bmc150_accel_chip_init(struct bmc150_accel_data *data)
 {
 	int ret;
@@ -307,32 +383,12 @@ static int bmc150_accel_chip_init(struct bmc150_accel_data *data)
 
 	data->range = BMC150_ACCEL_DEF_RANGE_4G;
 
-	/* Set default slope duration */
-	ret = i2c_smbus_read_byte_data(data->client, BMC150_ACCEL_REG_INT_5);
-	if (ret < 0) {
-		dev_err(&data->client->dev, "Error reading reg_int_5\n");
-		return ret;
-	}
-	data->slope_dur |= BMC150_ACCEL_DEF_SLOPE_DURATION;
-	ret = i2c_smbus_write_byte_data(data->client,
-					BMC150_ACCEL_REG_INT_5,
-					data->slope_dur);
-	if (ret < 0) {
-		dev_err(&data->client->dev, "Error writing reg_int_5\n");
-		return ret;
-	}
-	dev_dbg(&data->client->dev, "slope_dur %x\n", data->slope_dur);
-
-	/* Set default slope thresholds */
-	ret = i2c_smbus_write_byte_data(data->client,
-					BMC150_ACCEL_REG_INT_6,
-					BMC150_ACCEL_DEF_SLOPE_THRESHOLD);
-	if (ret < 0) {
-		dev_err(&data->client->dev, "Error writing reg_int_6\n");
-		return ret;
-	}
+	/* Set default slope duration and thresholds */
 	data->slope_thres = BMC150_ACCEL_DEF_SLOPE_THRESHOLD;
-	dev_dbg(&data->client->dev, "slope_thres %x\n", data->slope_thres);
+	data->slope_dur = BMC150_ACCEL_DEF_SLOPE_DURATION;
+	ret = bmc150_accel_update_slope(data);
+	if (ret < 0)
+		return ret;
 
 	/* Set default as latched interrupts */
 	ret = i2c_smbus_write_byte_data(data->client,
@@ -348,155 +404,6 @@ static int bmc150_accel_chip_init(struct bmc150_accel_data *data)
 	return 0;
 }
 
-static int bmc150_accel_setup_any_motion_interrupt(
-					struct bmc150_accel_data *data,
-					bool status)
-{
-	int ret;
-
-	/* Enable/Disable INT1 mapping */
-	ret = i2c_smbus_read_byte_data(data->client,
-				       BMC150_ACCEL_REG_INT_MAP_0);
-	if (ret < 0) {
-		dev_err(&data->client->dev, "Error reading reg_int_map_0\n");
-		return ret;
-	}
-	if (status)
-		ret |= BMC150_ACCEL_INT_MAP_0_BIT_SLOPE;
-	else
-		ret &= ~BMC150_ACCEL_INT_MAP_0_BIT_SLOPE;
-
-	ret = i2c_smbus_write_byte_data(data->client,
-					BMC150_ACCEL_REG_INT_MAP_0,
-					ret);
-	if (ret < 0) {
-		dev_err(&data->client->dev, "Error writing reg_int_map_0\n");
-		return ret;
-	}
-
-	if (status) {
-		/* Set slope duration (no of samples) */
-		ret = i2c_smbus_write_byte_data(data->client,
-						BMC150_ACCEL_REG_INT_5,
-						data->slope_dur);
-		if (ret < 0) {
-			dev_err(&data->client->dev, "Error write reg_int_5\n");
-			return ret;
-		}
-
-		/* Set slope thresholds */
-		ret = i2c_smbus_write_byte_data(data->client,
-						BMC150_ACCEL_REG_INT_6,
-						data->slope_thres);
-		if (ret < 0) {
-			dev_err(&data->client->dev, "Error write reg_int_6\n");
-			return ret;
-		}
-
-		/*
-		 * New data interrupt is always non-latched,
-		 * which will have higher priority, so no need
-		 * to set latched mode, we will be flooded anyway with INTR
-		 */
-		if (!data->dready_trigger_on) {
-			ret = i2c_smbus_write_byte_data(data->client,
-					BMC150_ACCEL_REG_INT_RST_LATCH,
-					BMC150_ACCEL_INT_MODE_LATCH_INT |
-					BMC150_ACCEL_INT_MODE_LATCH_RESET);
-			if (ret < 0) {
-				dev_err(&data->client->dev,
-					"Error writing reg_int_rst_latch\n");
-				return ret;
-			}
-		}
-
-		ret = i2c_smbus_write_byte_data(data->client,
-						BMC150_ACCEL_REG_INT_EN_0,
-						BMC150_ACCEL_INT_EN_BIT_SLP_X |
-						BMC150_ACCEL_INT_EN_BIT_SLP_Y |
-						BMC150_ACCEL_INT_EN_BIT_SLP_Z);
-	} else
-		ret = i2c_smbus_write_byte_data(data->client,
-						BMC150_ACCEL_REG_INT_EN_0,
-						0);
-
-	if (ret < 0) {
-		dev_err(&data->client->dev, "Error writing reg_int_en_0\n");
-		return ret;
-	}
-
-	return 0;
-}
-
-static int bmc150_accel_setup_new_data_interrupt(struct bmc150_accel_data *data,
-					   bool status)
-{
-	int ret;
-
-	/* Enable/Disable INT1 mapping */
-	ret = i2c_smbus_read_byte_data(data->client,
-				       BMC150_ACCEL_REG_INT_MAP_1);
-	if (ret < 0) {
-		dev_err(&data->client->dev, "Error reading reg_int_map_1\n");
-		return ret;
-	}
-	if (status)
-		ret |= BMC150_ACCEL_INT_MAP_1_BIT_DATA;
-	else
-		ret &= ~BMC150_ACCEL_INT_MAP_1_BIT_DATA;
-
-	ret = i2c_smbus_write_byte_data(data->client,
-					BMC150_ACCEL_REG_INT_MAP_1,
-					ret);
-	if (ret < 0) {
-		dev_err(&data->client->dev, "Error writing reg_int_map_1\n");
-		return ret;
-	}
-
-	if (status) {
-		/*
-		 * Set non latched mode interrupt and clear any latched
-		 * interrupt
-		 */
-		ret = i2c_smbus_write_byte_data(data->client,
-					BMC150_ACCEL_REG_INT_RST_LATCH,
-					BMC150_ACCEL_INT_MODE_NON_LATCH_INT |
-					BMC150_ACCEL_INT_MODE_LATCH_RESET);
-		if (ret < 0) {
-			dev_err(&data->client->dev,
-				"Error writing reg_int_rst_latch\n");
-			return ret;
-		}
-
-		ret = i2c_smbus_write_byte_data(data->client,
-					BMC150_ACCEL_REG_INT_EN_1,
-					BMC150_ACCEL_INT_EN_BIT_DATA_EN);
-
-	} else {
-		/* Restore default interrupt mode */
-		ret = i2c_smbus_write_byte_data(data->client,
-					BMC150_ACCEL_REG_INT_RST_LATCH,
-					BMC150_ACCEL_INT_MODE_LATCH_INT |
-					BMC150_ACCEL_INT_MODE_LATCH_RESET);
-		if (ret < 0) {
-			dev_err(&data->client->dev,
-				"Error writing reg_int_rst_latch\n");
-			return ret;
-		}
-
-		ret = i2c_smbus_write_byte_data(data->client,
-						BMC150_ACCEL_REG_INT_EN_1,
-						0);
-	}
-
-	if (ret < 0) {
-		dev_err(&data->client->dev, "Error writing reg_int_en_1\n");
-		return ret;
-	}
-
-	return 0;
-}
-
 static int bmc150_accel_get_bw(struct bmc150_accel_data *data, int *val,
 			       int *val2)
 {
@@ -554,6 +461,120 @@ static int bmc150_accel_set_power_state(struct bmc150_accel_data *data, bool on)
 }
 #endif
 
+static const struct bmc150_accel_interrupt_info {
+	u8 map_reg;
+	u8 map_bitmask;
+	u8 en_reg;
+	u8 en_bitmask;
+} bmc150_accel_interrupts[BMC150_ACCEL_INTERRUPTS] = {
+	{ /* data ready interrupt */
+		.map_reg = BMC150_ACCEL_REG_INT_MAP_1,
+		.map_bitmask = BMC150_ACCEL_INT_MAP_1_BIT_DATA,
+		.en_reg = BMC150_ACCEL_REG_INT_EN_1,
+		.en_bitmask = BMC150_ACCEL_INT_EN_BIT_DATA_EN,
+	},
+	{  /* motion interrupt */
+		.map_reg = BMC150_ACCEL_REG_INT_MAP_0,
+		.map_bitmask = BMC150_ACCEL_INT_MAP_0_BIT_SLOPE,
+		.en_reg = BMC150_ACCEL_REG_INT_EN_0,
+		.en_bitmask =  BMC150_ACCEL_INT_EN_BIT_SLP_X |
+			BMC150_ACCEL_INT_EN_BIT_SLP_Y |
+			BMC150_ACCEL_INT_EN_BIT_SLP_Z
+	},
+	{ /* fifo watermark interrupt */
+		.map_reg = BMC150_ACCEL_REG_INT_MAP_1,
+		.map_bitmask = BMC150_ACCEL_INT_MAP_1_BIT_FWM,
+		.en_reg = BMC150_ACCEL_REG_INT_EN_1,
+		.en_bitmask = BMC150_ACCEL_INT_EN_BIT_FWM_EN,
+	},
+};
+
+static void bmc150_accel_interrupts_setup(struct iio_dev *indio_dev,
+					  struct bmc150_accel_data *data)
+{
+	int i;
+
+	for (i = 0; i < BMC150_ACCEL_INTERRUPTS; i++)
+		data->interrupts[i].info = &bmc150_accel_interrupts[i];
+}
+
+static int bmc150_accel_set_interrupt(struct bmc150_accel_data *data, int i,
+				      bool state)
+{
+	struct bmc150_accel_interrupt *intr = &data->interrupts[i];
+	const struct bmc150_accel_interrupt_info *info = intr->info;
+	int ret;
+
+	if (state) {
+		if (atomic_inc_return(&intr->users) > 1)
+			return 0;
+	} else {
+		if (atomic_dec_return(&intr->users) > 0)
+			return 0;
+	}
+
+	/*
+	 * We will expect the enable and disable to do operation in
+	 * in reverse order. This will happen here anyway as our
+	 * resume operation uses sync mode runtime pm calls, the
+	 * suspend operation will be delayed by autosuspend delay
+	 * So the disable operation will still happen in reverse of
+	 * enable operation. When runtime pm is disabled the mode
+	 * is always on so sequence doesn't matter
+	 */
+	ret = bmc150_accel_set_power_state(data, state);
+	if (ret < 0)
+		return ret;
+
+	/* map the interrupt to the appropriate pins */
+	ret = i2c_smbus_read_byte_data(data->client, info->map_reg);
+	if (ret < 0) {
+		dev_err(&data->client->dev, "Error reading reg_int_map\n");
+		goto out_fix_power_state;
+	}
+	if (state)
+		ret |= info->map_bitmask;
+	else
+		ret &= ~info->map_bitmask;
+
+	ret = i2c_smbus_write_byte_data(data->client, info->map_reg,
+					ret);
+	if (ret < 0) {
+		dev_err(&data->client->dev, "Error writing reg_int_map\n");
+		goto out_fix_power_state;
+	}
+
+	/* enable/disable the interrupt */
+	ret = i2c_smbus_read_byte_data(data->client, info->en_reg);
+	if (ret < 0) {
+		dev_err(&data->client->dev, "Error reading reg_int_en\n");
+		goto out_fix_power_state;
+	}
+
+	if (state)
+		ret |= info->en_bitmask;
+	else
+		ret &= ~info->en_bitmask;
+
+	ret = i2c_smbus_write_byte_data(data->client, info->en_reg, ret);
+	if (ret < 0) {
+		dev_err(&data->client->dev, "Error writing reg_int_en\n");
+		goto out_fix_power_state;
+	}
+
+	if (state)
+		atomic_inc(&data->active_intr);
+	else
+		atomic_dec(&data->active_intr);
+
+	return 0;
+
+out_fix_power_state:
+	bmc150_accel_set_power_state(data, false);
+	return ret;
+}
+
+
 static int bmc150_accel_set_scale(struct bmc150_accel_data *data, int val)
 {
 	int ret, i;
@@ -732,7 +753,7 @@ static int bmc150_accel_read_event(struct iio_dev *indio_dev,
 		*val = data->slope_thres;
 		break;
 	case IIO_EV_INFO_PERIOD:
-		*val = data->slope_dur & BMC150_ACCEL_SLOPE_DUR_MASK;
+		*val = data->slope_dur;
 		break;
 	default:
 		return -EINVAL;
@@ -755,11 +776,10 @@ static int bmc150_accel_write_event(struct iio_dev *indio_dev,
 
 	switch (info) {
 	case IIO_EV_INFO_VALUE:
-		data->slope_thres = val;
+		data->slope_thres = val & 0xFF;
 		break;
 	case IIO_EV_INFO_PERIOD:
-		data->slope_dur &= ~BMC150_ACCEL_SLOPE_DUR_MASK;
-		data->slope_dur |= val & BMC150_ACCEL_SLOPE_DUR_MASK;
+		data->slope_dur = val & BMC150_ACCEL_SLOPE_DUR_MASK;
 		break;
 	default:
 		return -EINVAL;
@@ -788,36 +808,14 @@ static int bmc150_accel_write_event_config(struct iio_dev *indio_dev,
 	struct bmc150_accel_data *data = iio_priv(indio_dev);
 	int ret;
 
-	if (state && data->ev_enable_state)
+	if (state == data->ev_enable_state)
 		return 0;
 
 	mutex_lock(&data->mutex);
 
-	if (!state && data->motion_trigger_on) {
-		data->ev_enable_state = 0;
-		mutex_unlock(&data->mutex);
-		return 0;
-	}
-
-	/*
-	 * We will expect the enable and disable to do operation in
-	 * in reverse order. This will happen here anyway as our
-	 * resume operation uses sync mode runtime pm calls, the
-	 * suspend operation will be delayed by autosuspend delay
-	 * So the disable operation will still happen in reverse of
-	 * enable operation. When runtime pm is disabled the mode
-	 * is always on so sequence doesn't matter
-	 */
-
-	ret = bmc150_accel_set_power_state(data, state);
-	if (ret < 0) {
-		mutex_unlock(&data->mutex);
-		return ret;
-	}
-
-	ret =  bmc150_accel_setup_any_motion_interrupt(data, state);
+	ret = bmc150_accel_set_interrupt(data, BMC150_ACCEL_INT_ANY_MOTION,
+					 state);
 	if (ret < 0) {
-		bmc150_accel_set_power_state(data, false);
 		mutex_unlock(&data->mutex);
 		return ret;
 	}
@@ -832,15 +830,226 @@ static int bmc150_accel_validate_trigger(struct iio_dev *indio_dev,
 				   struct iio_trigger *trig)
 {
 	struct bmc150_accel_data *data = iio_priv(indio_dev);
+	int i;
 
-	if (data->dready_trig != trig && data->motion_trig != trig)
-		return -EINVAL;
+	for (i = 0; i < BMC150_ACCEL_TRIGGERS; i++) {
+		if (data->triggers[i].indio_trig == trig)
+			return 0;
+	}
+
+	return -EINVAL;
+}
+
+static ssize_t bmc150_accel_get_fifo_watermark(struct device *dev,
+					       struct device_attribute *attr,
+					       char *buf)
+{
+	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
+	struct bmc150_accel_data *data = iio_priv(indio_dev);
+	int wm;
+
+	mutex_lock(&data->mutex);
+	wm = data->watermark;
+	mutex_unlock(&data->mutex);
+
+	return sprintf(buf, "%d\n", wm);
+}
+
+static ssize_t bmc150_accel_get_fifo_state(struct device *dev,
+					   struct device_attribute *attr,
+					   char *buf)
+{
+	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
+	struct bmc150_accel_data *data = iio_priv(indio_dev);
+	bool state;
+
+	mutex_lock(&data->mutex);
+	state = data->fifo_mode;
+	mutex_unlock(&data->mutex);
+
+	return sprintf(buf, "%d\n", state);
+}
+
+static IIO_CONST_ATTR(hwfifo_watermark_min, "1");
+static IIO_CONST_ATTR(hwfifo_watermark_max,
+		      __stringify(BMC150_ACCEL_FIFO_LENGTH));
+static IIO_DEVICE_ATTR(hwfifo_enabled, S_IRUGO,
+		       bmc150_accel_get_fifo_state, NULL, 0);
+static IIO_DEVICE_ATTR(hwfifo_watermark, S_IRUGO,
+		       bmc150_accel_get_fifo_watermark, NULL, 0);
+
+static const struct attribute *bmc150_accel_fifo_attributes[] = {
+	&iio_const_attr_hwfifo_watermark_min.dev_attr.attr,
+	&iio_const_attr_hwfifo_watermark_max.dev_attr.attr,
+	&iio_dev_attr_hwfifo_watermark.dev_attr.attr,
+	&iio_dev_attr_hwfifo_enabled.dev_attr.attr,
+	NULL,
+};
+
+static int bmc150_accel_set_watermark(struct iio_dev *indio_dev, unsigned val)
+{
+	struct bmc150_accel_data *data = iio_priv(indio_dev);
+
+	if (val > BMC150_ACCEL_FIFO_LENGTH)
+		val = BMC150_ACCEL_FIFO_LENGTH;
+
+	mutex_lock(&data->mutex);
+	data->watermark = val;
+	mutex_unlock(&data->mutex);
 
 	return 0;
 }
 
+/*
+ * We must read at least one full frame in one burst, otherwise the rest of the
+ * frame data is discarded.
+ */
+static int bmc150_accel_fifo_transfer(const struct i2c_client *client,
+				      char *buffer, int samples)
+{
+	int sample_length = 3 * 2;
+	u8 reg_fifo_data = BMC150_ACCEL_REG_FIFO_DATA;
+	int ret = -EIO;
+
+	if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
+		struct i2c_msg msg[2] = {
+			{
+				.addr = client->addr,
+				.flags = 0,
+				.buf = &reg_fifo_data,
+				.len = sizeof(reg_fifo_data),
+			},
+			{
+				.addr = client->addr,
+				.flags = I2C_M_RD,
+				.buf = (u8 *)buffer,
+				.len = samples * sample_length,
+			}
+		};
+
+		ret = i2c_transfer(client->adapter, msg, 2);
+		if (ret != 2)
+			ret = -EIO;
+		else
+			ret = 0;
+	} else {
+		int i, step = I2C_SMBUS_BLOCK_MAX / sample_length;
+
+		for (i = 0; i < samples * sample_length; i += step) {
+			ret = i2c_smbus_read_i2c_block_data(client,
+							    reg_fifo_data, step,
+							    &buffer[i]);
+			if (ret != step) {
+				ret = -EIO;
+				break;
+			}
+
+			ret = 0;
+		}
+	}
+
+	if (ret)
+		dev_err(&client->dev, "Error transferring data from fifo\n");
+
+	return ret;
+}
+
+static int __bmc150_accel_fifo_flush(struct iio_dev *indio_dev,
+				     unsigned samples, bool irq)
+{
+	struct bmc150_accel_data *data = iio_priv(indio_dev);
+	int ret, i;
+	u8 count;
+	u16 buffer[BMC150_ACCEL_FIFO_LENGTH * 3];
+	int64_t tstamp;
+	uint64_t sample_period;
+	ret = i2c_smbus_read_byte_data(data->client,
+				       BMC150_ACCEL_REG_FIFO_STATUS);
+	if (ret < 0) {
+		dev_err(&data->client->dev, "Error reading reg_fifo_status\n");
+		return ret;
+	}
+
+	count = ret & 0x7F;
+
+	if (!count)
+		return 0;
+
+	/*
+	 * If we getting called from IRQ handler we know the stored timestamp is
+	 * fairly accurate for the last stored sample. Otherwise, if we are
+	 * called as a result of a read operation from userspace and hence
+	 * before the watermark interrupt was triggered, take a timestamp
+	 * now. We can fall anywhere in between two samples so the error in this
+	 * case is at most one sample period.
+	 */
+	if (!irq) {
+		data->old_timestamp = data->timestamp;
+		data->timestamp = iio_get_time_ns();
+	}
+
+	/*
+	 * Approximate timestamps for each of the sample based on the sampling
+	 * frequency, timestamp for last sample and number of samples.
+	 *
+	 * Note that we can't use the current bandwidth settings to compute the
+	 * sample period because the sample rate varies with the device
+	 * (e.g. between 31.70ms to 32.20ms for a bandwidth of 15.63HZ). That
+	 * small variation adds when we store a large number of samples and
+	 * creates significant jitter between the last and first samples in
+	 * different batches (e.g. 32ms vs 21ms).
+	 *
+	 * To avoid this issue we compute the actual sample period ourselves
+	 * based on the timestamp delta between the last two flush operations.
+	 */
+	sample_period = (data->timestamp - data->old_timestamp);
+	do_div(sample_period, count);
+	tstamp = data->timestamp - (count - 1) * sample_period;
+
+	if (samples && count > samples)
+		count = samples;
+
+	ret = bmc150_accel_fifo_transfer(data->client, (u8 *)buffer, count);
+	if (ret)
+		return ret;
+
+	/*
+	 * Ideally we want the IIO core to handle the demux when running in fifo
+	 * mode but not when running in triggered buffer mode. Unfortunately
+	 * this does not seem to be possible, so stick with driver demux for
+	 * now.
+	 */
+	for (i = 0; i < count; i++) {
+		u16 sample[8];
+		int j, bit;
+
+		j = 0;
+		for_each_set_bit(bit, indio_dev->active_scan_mask,
+				 indio_dev->masklength)
+			memcpy(&sample[j++], &buffer[i * 3 + bit], 2);
+
+		iio_push_to_buffers_with_timestamp(indio_dev, sample, tstamp);
+
+		tstamp += sample_period;
+	}
+
+	return count;
+}
+
+static int bmc150_accel_fifo_flush(struct iio_dev *indio_dev, unsigned samples)
+{
+	struct bmc150_accel_data *data = iio_priv(indio_dev);
+	int ret;
+
+	mutex_lock(&data->mutex);
+	ret = __bmc150_accel_fifo_flush(indio_dev, samples, false);
+	mutex_unlock(&data->mutex);
+
+	return ret;
+}
+
 static IIO_CONST_ATTR_SAMP_FREQ_AVAIL(
-		"7.810000 15.630000 31.250000 62.500000 125 250 500 1000");
+		"15.620000 31.260000 62.50000 125 250 500 1000 2000");
 
 static struct attribute *bmc150_accel_attributes[] = {
 	&iio_const_attr_sampling_frequency_available.dev_attr.attr,
@@ -978,6 +1187,20 @@ static const struct iio_info bmc150_accel_info = {
 	.driver_module		= THIS_MODULE,
 };
 
+static const struct iio_info bmc150_accel_info_fifo = {
+	.attrs			= &bmc150_accel_attrs_group,
+	.read_raw		= bmc150_accel_read_raw,
+	.write_raw		= bmc150_accel_write_raw,
+	.read_event_value	= bmc150_accel_read_event,
+	.write_event_value	= bmc150_accel_write_event,
+	.write_event_config	= bmc150_accel_write_event_config,
+	.read_event_config	= bmc150_accel_read_event_config,
+	.validate_trigger	= bmc150_accel_validate_trigger,
+	.hwfifo_set_watermark	= bmc150_accel_set_watermark,
+	.hwfifo_flush_to_buffer	= bmc150_accel_fifo_flush,
+	.driver_module		= THIS_MODULE,
+};
+
 static irqreturn_t bmc150_accel_trigger_handler(int irq, void *p)
 {
 	struct iio_poll_func *pf = p;
@@ -986,7 +1209,7 @@ static irqreturn_t bmc150_accel_trigger_handler(int irq, void *p)
 	int bit, ret, i = 0;
 
 	mutex_lock(&data->mutex);
-	for_each_set_bit(bit, indio_dev->buffer->scan_mask,
+	for_each_set_bit(bit, indio_dev->active_scan_mask,
 			 indio_dev->masklength) {
 		ret = i2c_smbus_read_word_data(data->client,
 					       BMC150_ACCEL_AXIS_TO_REG(bit));
@@ -1008,12 +1231,12 @@ err_read:
 
 static int bmc150_accel_trig_try_reen(struct iio_trigger *trig)
 {
-	struct iio_dev *indio_dev = iio_trigger_get_drvdata(trig);
-	struct bmc150_accel_data *data = iio_priv(indio_dev);
+	struct bmc150_accel_trigger *t = iio_trigger_get_drvdata(trig);
+	struct bmc150_accel_data *data = t->data;
 	int ret;
 
 	/* new data interrupts don't need ack */
-	if (data->dready_trigger_on)
+	if (t == &t->data->triggers[BMC150_ACCEL_TRIGGER_DATA_READY])
 		return 0;
 
 	mutex_lock(&data->mutex);
@@ -1032,43 +1255,35 @@ static int bmc150_accel_trig_try_reen(struct iio_trigger *trig)
 	return 0;
 }
 
-static int bmc150_accel_data_rdy_trigger_set_state(struct iio_trigger *trig,
+static int bmc150_accel_trigger_set_state(struct iio_trigger *trig,
 						   bool state)
 {
-	struct iio_dev *indio_dev = iio_trigger_get_drvdata(trig);
-	struct bmc150_accel_data *data = iio_priv(indio_dev);
+	struct bmc150_accel_trigger *t = iio_trigger_get_drvdata(trig);
+	struct bmc150_accel_data *data = t->data;
 	int ret;
 
 	mutex_lock(&data->mutex);
 
-	if (!state && data->ev_enable_state && data->motion_trigger_on) {
-		data->motion_trigger_on = false;
+	if (t->enabled == state) {
 		mutex_unlock(&data->mutex);
 		return 0;
 	}
 
-	/*
-	 * Refer to comment in bmc150_accel_write_event_config for
-	 * enable/disable operation order
-	 */
-	ret = bmc150_accel_set_power_state(data, state);
-	if (ret < 0) {
-		mutex_unlock(&data->mutex);
-		return ret;
+	if (t->setup) {
+		ret = t->setup(t, state);
+		if (ret < 0) {
+			mutex_unlock(&data->mutex);
+			return ret;
+		}
 	}
-	if (data->motion_trig == trig)
-		ret =  bmc150_accel_setup_any_motion_interrupt(data, state);
-	else
-		ret = bmc150_accel_setup_new_data_interrupt(data, state);
+
+	ret = bmc150_accel_set_interrupt(data, t->intr, state);
 	if (ret < 0) {
-		bmc150_accel_set_power_state(data, false);
 		mutex_unlock(&data->mutex);
 		return ret;
 	}
-	if (data->motion_trig == trig)
-		data->motion_trigger_on = state;
-	else
-		data->dready_trigger_on = state;
+
+	t->enabled = state;
 
 	mutex_unlock(&data->mutex);
 
@@ -1076,23 +1291,22 @@ static int bmc150_accel_data_rdy_trigger_set_state(struct iio_trigger *trig,
 }
 
 static const struct iio_trigger_ops bmc150_accel_trigger_ops = {
-	.set_trigger_state = bmc150_accel_data_rdy_trigger_set_state,
+	.set_trigger_state = bmc150_accel_trigger_set_state,
 	.try_reenable = bmc150_accel_trig_try_reen,
 	.owner = THIS_MODULE,
 };
 
-static irqreturn_t bmc150_accel_event_handler(int irq, void *private)
+static int bmc150_accel_handle_roc_event(struct iio_dev *indio_dev)
 {
-	struct iio_dev *indio_dev = private;
 	struct bmc150_accel_data *data = iio_priv(indio_dev);
-	int ret;
 	int dir;
+	int ret;
 
 	ret = i2c_smbus_read_byte_data(data->client,
 				       BMC150_ACCEL_REG_INT_STATUS_2);
 	if (ret < 0) {
 		dev_err(&data->client->dev, "Error reading reg_int_status_2\n");
-		goto ack_intr_status;
+		return ret;
 	}
 
 	if (ret & BMC150_ACCEL_ANY_MOTION_BIT_SIGN)
@@ -1121,32 +1335,73 @@ static irqreturn_t bmc150_accel_event_handler(int irq, void *private)
 							IIO_EV_TYPE_ROC,
 							dir),
 							data->timestamp);
-ack_intr_status:
-	if (!data->dready_trigger_on)
+	return ret;
+}
+
+static irqreturn_t bmc150_accel_irq_thread_handler(int irq, void *private)
+{
+	struct iio_dev *indio_dev = private;
+	struct bmc150_accel_data *data = iio_priv(indio_dev);
+	bool ack = false;
+	int ret;
+
+	mutex_lock(&data->mutex);
+
+	if (data->fifo_mode) {
+		ret = __bmc150_accel_fifo_flush(indio_dev,
+						BMC150_ACCEL_FIFO_LENGTH, true);
+		if (ret > 0)
+			ack = true;
+	}
+
+	if (data->ev_enable_state) {
+		ret = bmc150_accel_handle_roc_event(indio_dev);
+		if (ret > 0)
+			ack = true;
+	}
+
+	if (ack) {
 		ret = i2c_smbus_write_byte_data(data->client,
 					BMC150_ACCEL_REG_INT_RST_LATCH,
 					BMC150_ACCEL_INT_MODE_LATCH_INT |
 					BMC150_ACCEL_INT_MODE_LATCH_RESET);
+		if (ret)
+			dev_err(&data->client->dev, "Error writing reg_int_rst_latch\n");
+		ret = IRQ_HANDLED;
+	} else {
+		ret = IRQ_NONE;
+	}
 
-	return IRQ_HANDLED;
+	mutex_unlock(&data->mutex);
+
+	return ret;
 }
 
-static irqreturn_t bmc150_accel_data_rdy_trig_poll(int irq, void *private)
+static irqreturn_t bmc150_accel_irq_handler(int irq, void *private)
 {
 	struct iio_dev *indio_dev = private;
 	struct bmc150_accel_data *data = iio_priv(indio_dev);
+	bool ack = false;
+	int i;
 
+	data->old_timestamp = data->timestamp;
 	data->timestamp = iio_get_time_ns();
 
-	if (data->dready_trigger_on)
-		iio_trigger_poll(data->dready_trig);
-	else if (data->motion_trigger_on)
-		iio_trigger_poll(data->motion_trig);
+	for (i = 0; i < BMC150_ACCEL_TRIGGERS; i++) {
+		if (data->triggers[i].enabled) {
+			iio_trigger_poll(data->triggers[i].indio_trig);
+			ack = true;
+			break;
+		}
+	}
 
-	if (data->ev_enable_state)
+	if (data->ev_enable_state || data->fifo_mode)
 		return IRQ_WAKE_THREAD;
-	else
+
+	if (ack)
 		return IRQ_HANDLED;
+
+	return IRQ_NONE;
 }
 
 static const char *bmc150_accel_match_acpi_device(struct device *dev, int *data)
@@ -1176,23 +1431,171 @@ static int bmc150_accel_gpio_probe(struct i2c_client *client,
 	dev = &client->dev;
 
 	/* data ready gpio interrupt pin */
-	gpio = devm_gpiod_get_index(dev, BMC150_ACCEL_GPIO_NAME, 0);
+	gpio = devm_gpiod_get_index(dev, BMC150_ACCEL_GPIO_NAME, 0, GPIOD_IN);
 	if (IS_ERR(gpio)) {
 		dev_err(dev, "Failed: gpio get index\n");
 		return PTR_ERR(gpio);
 	}
 
-	ret = gpiod_direction_input(gpio);
+	ret = gpiod_to_irq(gpio);
+
+	dev_dbg(dev, "GPIO resource, no:%d irq:%d\n", desc_to_gpio(gpio), ret);
+
+	return ret;
+}
+
+static const struct {
+	int intr;
+	const char *name;
+	int (*setup)(struct bmc150_accel_trigger *t, bool state);
+} bmc150_accel_triggers[BMC150_ACCEL_TRIGGERS] = {
+	{
+		.intr = 0,
+		.name = "%s-dev%d",
+	},
+	{
+		.intr = 1,
+		.name = "%s-any-motion-dev%d",
+		.setup = bmc150_accel_any_motion_setup,
+	},
+};
+
+static void bmc150_accel_unregister_triggers(struct bmc150_accel_data *data,
+					     int from)
+{
+	int i;
+
+	for (i = from; i >= 0; i++) {
+		if (data->triggers[i].indio_trig) {
+			iio_trigger_unregister(data->triggers[i].indio_trig);
+			data->triggers[i].indio_trig = NULL;
+		}
+	}
+}
+
+static int bmc150_accel_triggers_setup(struct iio_dev *indio_dev,
+				       struct bmc150_accel_data *data)
+{
+	int i, ret;
+
+	for (i = 0; i < BMC150_ACCEL_TRIGGERS; i++) {
+		struct bmc150_accel_trigger *t = &data->triggers[i];
+
+		t->indio_trig = devm_iio_trigger_alloc(&data->client->dev,
+					       bmc150_accel_triggers[i].name,
+						       indio_dev->name,
+						       indio_dev->id);
+		if (!t->indio_trig) {
+			ret = -ENOMEM;
+			break;
+		}
+
+		t->indio_trig->dev.parent = &data->client->dev;
+		t->indio_trig->ops = &bmc150_accel_trigger_ops;
+		t->intr = bmc150_accel_triggers[i].intr;
+		t->data = data;
+		t->setup = bmc150_accel_triggers[i].setup;
+		iio_trigger_set_drvdata(t->indio_trig, t);
+
+		ret = iio_trigger_register(t->indio_trig);
+		if (ret)
+			break;
+	}
+
 	if (ret)
+		bmc150_accel_unregister_triggers(data, i - 1);
+
+	return ret;
+}
+
+#define BMC150_ACCEL_FIFO_MODE_STREAM          0x80
+#define BMC150_ACCEL_FIFO_MODE_FIFO            0x40
+#define BMC150_ACCEL_FIFO_MODE_BYPASS          0x00
+
+static int bmc150_accel_fifo_set_mode(struct bmc150_accel_data *data)
+{
+	u8 reg = BMC150_ACCEL_REG_FIFO_CONFIG1;
+	int ret;
+
+	ret = i2c_smbus_write_byte_data(data->client, reg, data->fifo_mode);
+	if (ret < 0) {
+		dev_err(&data->client->dev, "Error writing reg_fifo_config1\n");
 		return ret;
+	}
 
-	ret = gpiod_to_irq(gpio);
+	if (!data->fifo_mode)
+		return 0;
 
-	dev_dbg(dev, "GPIO resource, no:%d irq:%d\n", desc_to_gpio(gpio), ret);
+	ret = i2c_smbus_write_byte_data(data->client,
+					BMC150_ACCEL_REG_FIFO_CONFIG0,
+					data->watermark);
+	if (ret < 0)
+		dev_err(&data->client->dev, "Error writing reg_fifo_config0\n");
 
 	return ret;
 }
 
+static int bmc150_accel_buffer_postenable(struct iio_dev *indio_dev)
+{
+	struct bmc150_accel_data *data = iio_priv(indio_dev);
+	int ret = 0;
+
+	if (indio_dev->currentmode == INDIO_BUFFER_TRIGGERED)
+		return iio_triggered_buffer_postenable(indio_dev);
+
+	mutex_lock(&data->mutex);
+
+	if (!data->watermark)
+		goto out;
+
+	ret = bmc150_accel_set_interrupt(data, BMC150_ACCEL_INT_WATERMARK,
+					 true);
+	if (ret)
+		goto out;
+
+	data->fifo_mode = BMC150_ACCEL_FIFO_MODE_FIFO;
+
+	ret = bmc150_accel_fifo_set_mode(data);
+	if (ret) {
+		data->fifo_mode = 0;
+		bmc150_accel_set_interrupt(data, BMC150_ACCEL_INT_WATERMARK,
+					   false);
+	}
+
+out:
+	mutex_unlock(&data->mutex);
+
+	return ret;
+}
+
+static int bmc150_accel_buffer_predisable(struct iio_dev *indio_dev)
+{
+	struct bmc150_accel_data *data = iio_priv(indio_dev);
+
+	if (indio_dev->currentmode == INDIO_BUFFER_TRIGGERED)
+		return iio_triggered_buffer_predisable(indio_dev);
+
+	mutex_lock(&data->mutex);
+
+	if (!data->fifo_mode)
+		goto out;
+
+	bmc150_accel_set_interrupt(data, BMC150_ACCEL_INT_WATERMARK, false);
+	__bmc150_accel_fifo_flush(indio_dev, BMC150_ACCEL_FIFO_LENGTH, false);
+	data->fifo_mode = 0;
+	bmc150_accel_fifo_set_mode(data);
+
+out:
+	mutex_unlock(&data->mutex);
+
+	return 0;
+}
+
+static const struct iio_buffer_setup_ops bmc150_accel_buffer_ops = {
+	.postenable = bmc150_accel_buffer_postenable,
+	.predisable = bmc150_accel_buffer_predisable,
+};
+
 static int bmc150_accel_probe(struct i2c_client *client,
 			      const struct i2c_device_id *id)
 {
@@ -1239,53 +1642,51 @@ static int bmc150_accel_probe(struct i2c_client *client,
 	if (client->irq >= 0) {
 		ret = devm_request_threaded_irq(
 						&client->dev, client->irq,
-						bmc150_accel_data_rdy_trig_poll,
-						bmc150_accel_event_handler,
+						bmc150_accel_irq_handler,
+						bmc150_accel_irq_thread_handler,
 						IRQF_TRIGGER_RISING,
 						BMC150_ACCEL_IRQ_NAME,
 						indio_dev);
 		if (ret)
 			return ret;
 
-		data->dready_trig = devm_iio_trigger_alloc(&client->dev,
-							   "%s-dev%d",
-							   indio_dev->name,
-							   indio_dev->id);
-		if (!data->dready_trig)
-			return -ENOMEM;
-
-		data->motion_trig = devm_iio_trigger_alloc(&client->dev,
-							  "%s-any-motion-dev%d",
-							  indio_dev->name,
-							  indio_dev->id);
-		if (!data->motion_trig)
-			return -ENOMEM;
-
-		data->dready_trig->dev.parent = &client->dev;
-		data->dready_trig->ops = &bmc150_accel_trigger_ops;
-		iio_trigger_set_drvdata(data->dready_trig, indio_dev);
-		ret = iio_trigger_register(data->dready_trig);
-		if (ret)
+		/*
+		 * Set latched mode interrupt. While certain interrupts are
+		 * non-latched regardless of this settings (e.g. new data) we
+		 * want to use latch mode when we can to prevent interrupt
+		 * flooding.
+		 */
+		ret = i2c_smbus_write_byte_data(data->client,
+						BMC150_ACCEL_REG_INT_RST_LATCH,
+					     BMC150_ACCEL_INT_MODE_LATCH_RESET);
+		if (ret < 0) {
+			dev_err(&data->client->dev, "Error writing reg_int_rst_latch\n");
 			return ret;
-
-		data->motion_trig->dev.parent = &client->dev;
-		data->motion_trig->ops = &bmc150_accel_trigger_ops;
-		iio_trigger_set_drvdata(data->motion_trig, indio_dev);
-		ret = iio_trigger_register(data->motion_trig);
-		if (ret) {
-			data->motion_trig = NULL;
-			goto err_trigger_unregister;
 		}
 
+		bmc150_accel_interrupts_setup(indio_dev, data);
+
+		ret = bmc150_accel_triggers_setup(indio_dev, data);
+		if (ret)
+			return ret;
+
 		ret = iio_triggered_buffer_setup(indio_dev,
 						 &iio_pollfunc_store_time,
 						 bmc150_accel_trigger_handler,
-						 NULL);
+						 &bmc150_accel_buffer_ops);
 		if (ret < 0) {
 			dev_err(&client->dev,
 				"Failed: iio triggered buffer setup\n");
 			goto err_trigger_unregister;
 		}
+
+		if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C) ||
+		    i2c_check_functionality(client->adapter,
+					    I2C_FUNC_SMBUS_READ_I2C_BLOCK)) {
+			indio_dev->modes |= INDIO_BUFFER_SOFTWARE;
+			indio_dev->info = &bmc150_accel_info_fifo;
+			indio_dev->buffer->attrs = bmc150_accel_fifo_attributes;
+		}
 	}
 
 	ret = iio_device_register(indio_dev);
@@ -1308,13 +1709,10 @@ static int bmc150_accel_probe(struct i2c_client *client,
 err_iio_unregister:
 	iio_device_unregister(indio_dev);
 err_buffer_cleanup:
-	if (data->dready_trig)
+	if (indio_dev->pollfunc)
 		iio_triggered_buffer_cleanup(indio_dev);
 err_trigger_unregister:
-	if (data->dready_trig)
-		iio_trigger_unregister(data->dready_trig);
-	if (data->motion_trig)
-		iio_trigger_unregister(data->motion_trig);
+	bmc150_accel_unregister_triggers(data, BMC150_ACCEL_TRIGGERS - 1);
 
 	return ret;
 }
@@ -1330,11 +1728,7 @@ static int bmc150_accel_remove(struct i2c_client *client)
 
 	iio_device_unregister(indio_dev);
 
-	if (data->dready_trig) {
-		iio_triggered_buffer_cleanup(indio_dev);
-		iio_trigger_unregister(data->dready_trig);
-		iio_trigger_unregister(data->motion_trig);
-	}
+	bmc150_accel_unregister_triggers(data, BMC150_ACCEL_TRIGGERS - 1);
 
 	mutex_lock(&data->mutex);
 	bmc150_accel_set_mode(data, BMC150_ACCEL_SLEEP_MODE_DEEP_SUSPEND, 0);
@@ -1362,9 +1756,9 @@ static int bmc150_accel_resume(struct device *dev)
 	struct bmc150_accel_data *data = iio_priv(indio_dev);
 
 	mutex_lock(&data->mutex);
-	if (data->dready_trigger_on || data->motion_trigger_on ||
-							data->ev_enable_state)
+	if (atomic_read(&data->active_intr))
 		bmc150_accel_set_mode(data, BMC150_ACCEL_SLEEP_MODE_NORMAL, 0);
+	bmc150_accel_fifo_set_mode(data);
 	mutex_unlock(&data->mutex);
 
 	return 0;
@@ -1398,6 +1792,9 @@ static int bmc150_accel_runtime_resume(struct device *dev)
 	ret = bmc150_accel_set_mode(data, BMC150_ACCEL_SLEEP_MODE_NORMAL, 0);
 	if (ret < 0)
 		return ret;
+	ret = bmc150_accel_fifo_set_mode(data);
+	if (ret < 0)
+		return ret;
 
 	sleep_val = bmc150_accel_get_startup_times(data);
 	if (sleep_val < 20)
diff --git a/drivers/iio/accel/kxcjk-1013.c b/drivers/iio/accel/kxcjk-1013.c
index 567de26..51da369 100644
--- a/drivers/iio/accel/kxcjk-1013.c
+++ b/drivers/iio/accel/kxcjk-1013.c
@@ -956,7 +956,7 @@ static irqreturn_t kxcjk1013_trigger_handler(int irq, void *p)
 
 	mutex_lock(&data->mutex);
 
-	for_each_set_bit(bit, indio_dev->buffer->scan_mask,
+	for_each_set_bit(bit, indio_dev->active_scan_mask,
 			 indio_dev->masklength) {
 		ret = kxcjk1013_get_acc_reg(data, bit);
 		if (ret < 0) {
@@ -1169,16 +1169,12 @@ static int kxcjk1013_gpio_probe(struct i2c_client *client,
 	dev = &client->dev;
 
 	/* data ready gpio interrupt pin */
-	gpio = devm_gpiod_get_index(dev, "kxcjk1013_int", 0);
+	gpio = devm_gpiod_get_index(dev, "kxcjk1013_int", 0, GPIOD_IN);
 	if (IS_ERR(gpio)) {
 		dev_err(dev, "acpi gpio get index failed\n");
 		return PTR_ERR(gpio);
 	}
 
-	ret = gpiod_direction_input(gpio);
-	if (ret)
-		return ret;
-
 	ret = gpiod_to_irq(gpio);
 
 	dev_dbg(dev, "GPIO resource, no:%d irq:%d\n", desc_to_gpio(gpio), ret);
diff --git a/drivers/iio/accel/mma9551.c b/drivers/iio/accel/mma9551.c
index 46c3835..7db7cc0 100644
--- a/drivers/iio/accel/mma9551.c
+++ b/drivers/iio/accel/mma9551.c
@@ -418,17 +418,18 @@ static int mma9551_gpio_probe(struct iio_dev *indio_dev)
 	struct device *dev = &data->client->dev;
 
 	for (i = 0; i < MMA9551_GPIO_COUNT; i++) {
-		gpio = devm_gpiod_get_index(dev, MMA9551_GPIO_NAME, i);
+		gpio = devm_gpiod_get_index(dev, MMA9551_GPIO_NAME, i,
+					    GPIOD_IN);
 		if (IS_ERR(gpio)) {
 			dev_err(dev, "acpi gpio get index failed\n");
 			return PTR_ERR(gpio);
 		}
 
-		ret = gpiod_direction_input(gpio);
-		if (ret)
+		ret = gpiod_to_irq(gpio);
+		if (ret < 0)
 			return ret;
 
-		data->irqs[i] = gpiod_to_irq(gpio);
+		data->irqs[i] = ret;
 		ret = devm_request_threaded_irq(dev, data->irqs[i],
 				NULL, mma9551_event_handler,
 				IRQF_TRIGGER_RISING | IRQF_ONESHOT,
diff --git a/drivers/iio/accel/mma9553.c b/drivers/iio/accel/mma9553.c
index d23ebf1..2df1af7 100644
--- a/drivers/iio/accel/mma9553.c
+++ b/drivers/iio/accel/mma9553.c
@@ -1109,16 +1109,12 @@ static int mma9553_gpio_probe(struct i2c_client *client)
 	dev = &client->dev;
 
 	/* data ready gpio interrupt pin */
-	gpio = devm_gpiod_get_index(dev, MMA9553_GPIO_NAME, 0);
+	gpio = devm_gpiod_get_index(dev, MMA9553_GPIO_NAME, 0, GPIOD_IN);
 	if (IS_ERR(gpio)) {
 		dev_err(dev, "acpi gpio get index failed\n");
 		return PTR_ERR(gpio);
 	}
 
-	ret = gpiod_direction_input(gpio);
-	if (ret)
-		return ret;
-
 	ret = gpiod_to_irq(gpio);
 
 	dev_dbg(dev, "gpio resource, no:%d irq:%d\n", desc_to_gpio(gpio), ret);
diff --git a/drivers/iio/accel/st_accel.h b/drivers/iio/accel/st_accel.h
index fa96460..7ee9724 100644
--- a/drivers/iio/accel/st_accel.h
+++ b/drivers/iio/accel/st_accel.h
@@ -14,6 +14,7 @@
 #include <linux/types.h>
 #include <linux/iio/common/st_sensors.h>
 
+#define LIS3LV02DL_ACCEL_DEV_NAME	"lis3lv02dl_accel"
 #define LSM303DLHC_ACCEL_DEV_NAME	"lsm303dlhc_accel"
 #define LIS3DH_ACCEL_DEV_NAME		"lis3dh"
 #define LSM330D_ACCEL_DEV_NAME		"lsm330d_accel"
diff --git a/drivers/iio/accel/st_accel_core.c b/drivers/iio/accel/st_accel_core.c
index 53f3262..58d1d13 100644
--- a/drivers/iio/accel/st_accel_core.c
+++ b/drivers/iio/accel/st_accel_core.c
@@ -129,6 +129,30 @@
 #define ST_ACCEL_3_IG1_EN_MASK			0x08
 #define ST_ACCEL_3_MULTIREAD_BIT		false
 
+/* CUSTOM VALUES FOR SENSOR 4 */
+#define ST_ACCEL_4_WAI_EXP			0x3a
+#define ST_ACCEL_4_ODR_ADDR			0x20
+#define ST_ACCEL_4_ODR_MASK			0x30 /* DF1 and DF0 */
+#define ST_ACCEL_4_ODR_AVL_40HZ_VAL		0x00
+#define ST_ACCEL_4_ODR_AVL_160HZ_VAL		0x01
+#define ST_ACCEL_4_ODR_AVL_640HZ_VAL		0x02
+#define ST_ACCEL_4_ODR_AVL_2560HZ_VAL		0x03
+#define ST_ACCEL_4_PW_ADDR			0x20
+#define ST_ACCEL_4_PW_MASK			0xc0
+#define ST_ACCEL_4_FS_ADDR			0x21
+#define ST_ACCEL_4_FS_MASK			0x80
+#define ST_ACCEL_4_FS_AVL_2_VAL			0X00
+#define ST_ACCEL_4_FS_AVL_6_VAL			0X01
+#define ST_ACCEL_4_FS_AVL_2_GAIN		IIO_G_TO_M_S_2(1024)
+#define ST_ACCEL_4_FS_AVL_6_GAIN		IIO_G_TO_M_S_2(340)
+#define ST_ACCEL_4_BDU_ADDR			0x21
+#define ST_ACCEL_4_BDU_MASK			0x40
+#define ST_ACCEL_4_DRDY_IRQ_ADDR		0x21
+#define ST_ACCEL_4_DRDY_IRQ_INT1_MASK		0x04
+#define ST_ACCEL_4_IG1_EN_ADDR			0x21
+#define ST_ACCEL_4_IG1_EN_MASK			0x08
+#define ST_ACCEL_4_MULTIREAD_BIT		true
+
 static const struct iio_chan_spec st_accel_12bit_channels[] = {
 	ST_SENSORS_LSM_CHANNELS(IIO_ACCEL,
 			BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE),
@@ -373,6 +397,63 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
 		.multi_read_bit = ST_ACCEL_3_MULTIREAD_BIT,
 		.bootime = 2,
 	},
+	{
+		.wai = ST_ACCEL_4_WAI_EXP,
+		.sensors_supported = {
+			[0] = LIS3LV02DL_ACCEL_DEV_NAME,
+		},
+		.ch = (struct iio_chan_spec *)st_accel_12bit_channels,
+		.odr = {
+			.addr = ST_ACCEL_4_ODR_ADDR,
+			.mask = ST_ACCEL_4_ODR_MASK,
+			.odr_avl = {
+				{ 40, ST_ACCEL_4_ODR_AVL_40HZ_VAL },
+				{ 160, ST_ACCEL_4_ODR_AVL_160HZ_VAL, },
+				{ 640, ST_ACCEL_4_ODR_AVL_640HZ_VAL, },
+				{ 2560, ST_ACCEL_4_ODR_AVL_2560HZ_VAL, },
+			},
+		},
+		.pw = {
+			.addr = ST_ACCEL_4_PW_ADDR,
+			.mask = ST_ACCEL_4_PW_MASK,
+			.value_on = ST_SENSORS_DEFAULT_POWER_ON_VALUE,
+			.value_off = ST_SENSORS_DEFAULT_POWER_OFF_VALUE,
+		},
+		.enable_axis = {
+			.addr = ST_SENSORS_DEFAULT_AXIS_ADDR,
+			.mask = ST_SENSORS_DEFAULT_AXIS_MASK,
+		},
+		.fs = {
+			.addr = ST_ACCEL_4_FS_ADDR,
+			.mask = ST_ACCEL_4_FS_MASK,
+			.fs_avl = {
+				[0] = {
+					.num = ST_ACCEL_FS_AVL_2G,
+					.value = ST_ACCEL_4_FS_AVL_2_VAL,
+					.gain = ST_ACCEL_4_FS_AVL_2_GAIN,
+				},
+				[1] = {
+					.num = ST_ACCEL_FS_AVL_6G,
+					.value = ST_ACCEL_4_FS_AVL_6_VAL,
+					.gain = ST_ACCEL_4_FS_AVL_6_GAIN,
+				},
+			},
+		},
+		.bdu = {
+			.addr = ST_ACCEL_4_BDU_ADDR,
+			.mask = ST_ACCEL_4_BDU_MASK,
+		},
+		.drdy_irq = {
+			.addr = ST_ACCEL_4_DRDY_IRQ_ADDR,
+			.mask_int1 = ST_ACCEL_4_DRDY_IRQ_INT1_MASK,
+			.ig1 = {
+				.en_addr = ST_ACCEL_4_IG1_EN_ADDR,
+				.en_mask = ST_ACCEL_4_IG1_EN_MASK,
+			},
+		},
+		.multi_read_bit = ST_ACCEL_4_MULTIREAD_BIT,
+		.bootime = 2, /* guess */
+	},
 };
 
 static int st_accel_read_raw(struct iio_dev *indio_dev,
diff --git a/drivers/iio/accel/st_accel_i2c.c b/drivers/iio/accel/st_accel_i2c.c
index c7246bd..6b720c1 100644
--- a/drivers/iio/accel/st_accel_i2c.c
+++ b/drivers/iio/accel/st_accel_i2c.c
@@ -21,6 +21,10 @@
 #ifdef CONFIG_OF
 static const struct of_device_id st_accel_of_match[] = {
 	{
+		.compatible = "st,lis3lv02dl-accel",
+		.data = LIS3LV02DL_ACCEL_DEV_NAME,
+	},
+	{
 		.compatible = "st,lsm303dlh-accel",
 		.data = LSM303DLH_ACCEL_DEV_NAME,
 	},
diff --git a/drivers/iio/adc/Kconfig b/drivers/iio/adc/Kconfig
index 202daf8..e36a73e 100644
--- a/drivers/iio/adc/Kconfig
+++ b/drivers/iio/adc/Kconfig
@@ -135,9 +135,19 @@ config AXP288_ADC
 	  device. Depending on platform configuration, this general purpose ADC can
 	  be used for sampling sensors such as thermal resistors.
 
+config DA9150_GPADC
+	tristate "Dialog DA9150 GPADC driver support"
+	depends on MFD_DA9150
+	help
+	  Say yes here to build support for Dialog DA9150 GPADC.
+
+	  This driver can also be built as a module. If chosen, the module name
+	  will be da9150-gpadc.
+
 config CC10001_ADC
 	tristate "Cosmic Circuits 10001 ADC driver"
-	depends on HAS_IOMEM || HAVE_CLK || REGULATOR
+	depends on HAVE_CLK || REGULATOR
+	depends on HAS_IOMEM
 	select IIO_BUFFER
 	select IIO_TRIGGERED_BUFFER
 	help
@@ -186,10 +196,11 @@ config MAX1363
 	  data via the iio dev interface.
 
 config MCP320X
-	tristate "Microchip Technology MCP3204/08"
+	tristate "Microchip Technology MCP3x01/02/04/08"
 	depends on SPI
 	help
-	  Say yes here to build support for Microchip Technology's MCP3204 or
+	  Say yes here to build support for Microchip Technology's
+	  MCP3001, MCP3002, MCP3004, MCP3008, MCP3201, MCP3202, MCP3204 or
 	  MCP3208 analog to digital converter.
 
 	  This driver can also be built as a module. If so, the module will be
diff --git a/drivers/iio/adc/Makefile b/drivers/iio/adc/Makefile
index 0315af6..3930e63 100644
--- a/drivers/iio/adc/Makefile
+++ b/drivers/iio/adc/Makefile
@@ -15,6 +15,7 @@ obj-$(CONFIG_AD7887) += ad7887.o
 obj-$(CONFIG_AD799X) += ad799x.o
 obj-$(CONFIG_AT91_ADC) += at91_adc.o
 obj-$(CONFIG_AXP288_ADC) += axp288_adc.o
+obj-$(CONFIG_DA9150_GPADC) += da9150-gpadc.o
 obj-$(CONFIG_CC10001_ADC) += cc10001_adc.o
 obj-$(CONFIG_EXYNOS_ADC) += exynos_adc.o
 obj-$(CONFIG_LP8788_ADC) += lp8788_adc.o
diff --git a/drivers/iio/adc/ad7793.c b/drivers/iio/adc/ad7793.c
index 4dddeab..b84922a 100644
--- a/drivers/iio/adc/ad7793.c
+++ b/drivers/iio/adc/ad7793.c
@@ -861,5 +861,5 @@ static struct spi_driver ad7793_driver = {
 module_spi_driver(ad7793_driver);
 
 MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
-MODULE_DESCRIPTION("Analog Devices AD7793 and simialr ADCs");
+MODULE_DESCRIPTION("Analog Devices AD7793 and similar ADCs");
 MODULE_LICENSE("GPL v2");
diff --git a/drivers/iio/adc/at91_adc.c b/drivers/iio/adc/at91_adc.c
index ff61ae5..8a0eb4a 100644
--- a/drivers/iio/adc/at91_adc.c
+++ b/drivers/iio/adc/at91_adc.c
@@ -544,7 +544,6 @@ static int at91_adc_configure_trigger(struct iio_trigger *trig, bool state)
 {
 	struct iio_dev *idev = iio_trigger_get_drvdata(trig);
 	struct at91_adc_state *st = iio_priv(idev);
-	struct iio_buffer *buffer = idev->buffer;
 	struct at91_adc_reg_desc *reg = st->registers;
 	u32 status = at91_adc_readl(st, reg->trigger_register);
 	int value;
@@ -564,7 +563,7 @@ static int at91_adc_configure_trigger(struct iio_trigger *trig, bool state)
 		at91_adc_writel(st, reg->trigger_register,
 				status | value);
 
-		for_each_set_bit(bit, buffer->scan_mask,
+		for_each_set_bit(bit, idev->active_scan_mask,
 				 st->num_channels) {
 			struct iio_chan_spec const *chan = idev->channels + bit;
 			at91_adc_writel(st, AT91_ADC_CHER,
@@ -579,7 +578,7 @@ static int at91_adc_configure_trigger(struct iio_trigger *trig, bool state)
 		at91_adc_writel(st, reg->trigger_register,
 				status & ~value);
 
-		for_each_set_bit(bit, buffer->scan_mask,
+		for_each_set_bit(bit, idev->active_scan_mask,
 				 st->num_channels) {
 			struct iio_chan_spec const *chan = idev->channels + bit;
 			at91_adc_writel(st, AT91_ADC_CHDR,
diff --git a/drivers/iio/adc/da9150-gpadc.c b/drivers/iio/adc/da9150-gpadc.c
new file mode 100644
index 0000000..3445107
--- /dev/null
+++ b/drivers/iio/adc/da9150-gpadc.c
@@ -0,0 +1,407 @@
+/*
+ * DA9150 GPADC Driver
+ *
+ * Copyright (c) 2014 Dialog Semiconductor
+ *
+ * Author: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/interrupt.h>
+#include <linux/mutex.h>
+#include <linux/completion.h>
+#include <linux/iio/iio.h>
+#include <linux/iio/machine.h>
+#include <linux/iio/driver.h>
+#include <linux/mfd/da9150/core.h>
+#include <linux/mfd/da9150/registers.h>
+
+/* Channels */
+enum da9150_gpadc_hw_channel {
+	DA9150_GPADC_HW_CHAN_GPIOA_2V = 0,
+	DA9150_GPADC_HW_CHAN_GPIOA_2V_,
+	DA9150_GPADC_HW_CHAN_GPIOB_2V,
+	DA9150_GPADC_HW_CHAN_GPIOB_2V_,
+	DA9150_GPADC_HW_CHAN_GPIOC_2V,
+	DA9150_GPADC_HW_CHAN_GPIOC_2V_,
+	DA9150_GPADC_HW_CHAN_GPIOD_2V,
+	DA9150_GPADC_HW_CHAN_GPIOD_2V_,
+	DA9150_GPADC_HW_CHAN_IBUS_SENSE,
+	DA9150_GPADC_HW_CHAN_IBUS_SENSE_,
+	DA9150_GPADC_HW_CHAN_VBUS_DIV,
+	DA9150_GPADC_HW_CHAN_VBUS_DIV_,
+	DA9150_GPADC_HW_CHAN_ID,
+	DA9150_GPADC_HW_CHAN_ID_,
+	DA9150_GPADC_HW_CHAN_VSYS,
+	DA9150_GPADC_HW_CHAN_VSYS_,
+	DA9150_GPADC_HW_CHAN_GPIOA_6V,
+	DA9150_GPADC_HW_CHAN_GPIOA_6V_,
+	DA9150_GPADC_HW_CHAN_GPIOB_6V,
+	DA9150_GPADC_HW_CHAN_GPIOB_6V_,
+	DA9150_GPADC_HW_CHAN_GPIOC_6V,
+	DA9150_GPADC_HW_CHAN_GPIOC_6V_,
+	DA9150_GPADC_HW_CHAN_GPIOD_6V,
+	DA9150_GPADC_HW_CHAN_GPIOD_6V_,
+	DA9150_GPADC_HW_CHAN_VBAT,
+	DA9150_GPADC_HW_CHAN_VBAT_,
+	DA9150_GPADC_HW_CHAN_TBAT,
+	DA9150_GPADC_HW_CHAN_TBAT_,
+	DA9150_GPADC_HW_CHAN_TJUNC_CORE,
+	DA9150_GPADC_HW_CHAN_TJUNC_CORE_,
+	DA9150_GPADC_HW_CHAN_TJUNC_OVP,
+	DA9150_GPADC_HW_CHAN_TJUNC_OVP_,
+};
+
+enum da9150_gpadc_channel {
+	DA9150_GPADC_CHAN_GPIOA = 0,
+	DA9150_GPADC_CHAN_GPIOB,
+	DA9150_GPADC_CHAN_GPIOC,
+	DA9150_GPADC_CHAN_GPIOD,
+	DA9150_GPADC_CHAN_IBUS,
+	DA9150_GPADC_CHAN_VBUS,
+	DA9150_GPADC_CHAN_VSYS,
+	DA9150_GPADC_CHAN_VBAT,
+	DA9150_GPADC_CHAN_TBAT,
+	DA9150_GPADC_CHAN_TJUNC_CORE,
+	DA9150_GPADC_CHAN_TJUNC_OVP,
+};
+
+/* Private data */
+struct da9150_gpadc {
+	struct da9150 *da9150;
+	struct device *dev;
+
+	struct mutex lock;
+	struct completion complete;
+};
+
+
+static irqreturn_t da9150_gpadc_irq(int irq, void *data)
+{
+
+	struct da9150_gpadc *gpadc = data;
+
+	complete(&gpadc->complete);
+
+	return IRQ_HANDLED;
+}
+
+static int da9150_gpadc_read_adc(struct da9150_gpadc *gpadc, int hw_chan)
+{
+	u8 result_regs[2];
+	int result;
+
+	mutex_lock(&gpadc->lock);
+
+	/* Set channel & enable measurement */
+	da9150_reg_write(gpadc->da9150, DA9150_GPADC_MAN,
+			 (DA9150_GPADC_EN_MASK |
+			  hw_chan << DA9150_GPADC_MUX_SHIFT));
+
+	/* Consume left-over completion from a previous timeout */
+	try_wait_for_completion(&gpadc->complete);
+
+	/* Check for actual completion */
+	wait_for_completion_timeout(&gpadc->complete, msecs_to_jiffies(5));
+
+	/* Read result and status from device */
+	da9150_bulk_read(gpadc->da9150, DA9150_GPADC_RES_A, 2, result_regs);
+
+	mutex_unlock(&gpadc->lock);
+
+	/* Check to make sure device really has completed reading */
+	if (result_regs[1] & DA9150_GPADC_RUN_MASK) {
+		dev_err(gpadc->dev, "Timeout on channel %d of GPADC\n",
+			hw_chan);
+		return -ETIMEDOUT;
+	}
+
+	/* LSBs - 2 bits */
+	result = (result_regs[1] & DA9150_GPADC_RES_L_MASK) >>
+		 DA9150_GPADC_RES_L_SHIFT;
+	/* MSBs - 8 bits */
+	result |= result_regs[0] << DA9150_GPADC_RES_L_BITS;
+
+	return result;
+}
+
+static inline int da9150_gpadc_gpio_6v_voltage_now(int raw_val)
+{
+	/* Convert to mV */
+	return (6 * ((raw_val * 1000) + 500)) / 1024;
+}
+
+static inline int da9150_gpadc_ibus_current_avg(int raw_val)
+{
+	/* Convert to mA */
+	return (4 * ((raw_val * 1000) + 500)) / 2048;
+}
+
+static inline int da9150_gpadc_vbus_21v_voltage_now(int raw_val)
+{
+	/* Convert to mV */
+	return (21 * ((raw_val * 1000) + 500)) / 1024;
+}
+
+static inline int da9150_gpadc_vsys_6v_voltage_now(int raw_val)
+{
+	/* Convert to mV */
+	return (3 * ((raw_val * 1000) + 500)) / 512;
+}
+
+static int da9150_gpadc_read_processed(struct da9150_gpadc *gpadc, int channel,
+				       int hw_chan, int *val)
+{
+	int raw_val;
+
+	raw_val = da9150_gpadc_read_adc(gpadc, hw_chan);
+	if (raw_val < 0)
+		return raw_val;
+
+	switch (channel) {
+	case DA9150_GPADC_CHAN_GPIOA:
+	case DA9150_GPADC_CHAN_GPIOB:
+	case DA9150_GPADC_CHAN_GPIOC:
+	case DA9150_GPADC_CHAN_GPIOD:
+		*val = da9150_gpadc_gpio_6v_voltage_now(raw_val);
+		break;
+	case DA9150_GPADC_CHAN_IBUS:
+		*val = da9150_gpadc_ibus_current_avg(raw_val);
+		break;
+	case DA9150_GPADC_CHAN_VBUS:
+		*val = da9150_gpadc_vbus_21v_voltage_now(raw_val);
+		break;
+	case DA9150_GPADC_CHAN_VSYS:
+		*val = da9150_gpadc_vsys_6v_voltage_now(raw_val);
+		break;
+	default:
+		/* No processing for other channels so return raw value */
+		*val = raw_val;
+		break;
+	}
+
+	return IIO_VAL_INT;
+}
+
+static int da9150_gpadc_read_scale(int channel, int *val, int *val2)
+{
+	switch (channel) {
+	case DA9150_GPADC_CHAN_VBAT:
+		*val = 2932;
+		*val2 = 1000;
+		return IIO_VAL_FRACTIONAL;
+	case DA9150_GPADC_CHAN_TJUNC_CORE:
+	case DA9150_GPADC_CHAN_TJUNC_OVP:
+		*val = 1000000;
+		*val2 = 4420;
+		return IIO_VAL_FRACTIONAL;
+	default:
+		return -EINVAL;
+	}
+}
+
+static int da9150_gpadc_read_offset(int channel, int *val)
+{
+	switch (channel) {
+	case DA9150_GPADC_CHAN_VBAT:
+		*val = 1500000 / 2932;
+		return IIO_VAL_INT;
+	case DA9150_GPADC_CHAN_TJUNC_CORE:
+	case DA9150_GPADC_CHAN_TJUNC_OVP:
+		*val = -144;
+		return IIO_VAL_INT;
+	default:
+		return -EINVAL;
+	}
+}
+
+static int da9150_gpadc_read_raw(struct iio_dev *indio_dev,
+				 struct iio_chan_spec const *chan,
+				 int *val, int *val2, long mask)
+{
+	struct da9150_gpadc *gpadc = iio_priv(indio_dev);
+
+	if ((chan->channel < DA9150_GPADC_CHAN_GPIOA) ||
+	    (chan->channel > DA9150_GPADC_CHAN_TJUNC_OVP))
+		return -EINVAL;
+
+	switch (mask) {
+	case IIO_CHAN_INFO_RAW:
+	case IIO_CHAN_INFO_PROCESSED:
+		return da9150_gpadc_read_processed(gpadc, chan->channel,
+						   chan->address, val);
+	case IIO_CHAN_INFO_SCALE:
+		return da9150_gpadc_read_scale(chan->channel, val, val2);
+	case IIO_CHAN_INFO_OFFSET:
+		return da9150_gpadc_read_offset(chan->channel, val);
+	default:
+		return -EINVAL;
+	}
+}
+
+static const struct iio_info da9150_gpadc_info = {
+	.read_raw = &da9150_gpadc_read_raw,
+	.driver_module = THIS_MODULE,
+};
+
+#define DA9150_GPADC_CHANNEL(_id, _hw_id, _type, chan_info,	\
+			     _ext_name) {			\
+	.type = _type,						\
+	.indexed = 1,						\
+	.channel = DA9150_GPADC_CHAN_##_id,			\
+	.address = DA9150_GPADC_HW_CHAN_##_hw_id,		\
+	.info_mask_separate = chan_info,			\
+	.extend_name = _ext_name,				\
+	.datasheet_name = #_id,					\
+}
+
+#define DA9150_GPADC_CHANNEL_RAW(_id, _hw_id, _type, _ext_name)	\
+	DA9150_GPADC_CHANNEL(_id, _hw_id, _type,		\
+			     BIT(IIO_CHAN_INFO_RAW), _ext_name)
+
+#define DA9150_GPADC_CHANNEL_SCALED(_id, _hw_id, _type, _ext_name)	\
+	DA9150_GPADC_CHANNEL(_id, _hw_id, _type,			\
+			     BIT(IIO_CHAN_INFO_RAW) |			\
+			     BIT(IIO_CHAN_INFO_SCALE) |			\
+			     BIT(IIO_CHAN_INFO_OFFSET),			\
+			     _ext_name)
+
+#define DA9150_GPADC_CHANNEL_PROCESSED(_id, _hw_id, _type, _ext_name)	\
+	DA9150_GPADC_CHANNEL(_id, _hw_id, _type,			\
+			     BIT(IIO_CHAN_INFO_PROCESSED), _ext_name)
+
+/* Supported channels */
+static const struct iio_chan_spec da9150_gpadc_channels[] = {
+	DA9150_GPADC_CHANNEL_PROCESSED(GPIOA, GPIOA_6V, IIO_VOLTAGE, NULL),
+	DA9150_GPADC_CHANNEL_PROCESSED(GPIOB, GPIOB_6V, IIO_VOLTAGE, NULL),
+	DA9150_GPADC_CHANNEL_PROCESSED(GPIOC, GPIOC_6V, IIO_VOLTAGE, NULL),
+	DA9150_GPADC_CHANNEL_PROCESSED(GPIOD, GPIOD_6V, IIO_VOLTAGE, NULL),
+	DA9150_GPADC_CHANNEL_PROCESSED(IBUS, IBUS_SENSE, IIO_CURRENT, "ibus"),
+	DA9150_GPADC_CHANNEL_PROCESSED(VBUS, VBUS_DIV_, IIO_VOLTAGE, "vbus"),
+	DA9150_GPADC_CHANNEL_PROCESSED(VSYS, VSYS, IIO_VOLTAGE, "vsys"),
+	DA9150_GPADC_CHANNEL_SCALED(VBAT, VBAT, IIO_VOLTAGE, "vbat"),
+	DA9150_GPADC_CHANNEL_RAW(TBAT, TBAT, IIO_VOLTAGE, "tbat"),
+	DA9150_GPADC_CHANNEL_SCALED(TJUNC_CORE, TJUNC_CORE, IIO_TEMP,
+				    "tjunc_core"),
+	DA9150_GPADC_CHANNEL_SCALED(TJUNC_OVP, TJUNC_OVP, IIO_TEMP,
+				    "tjunc_ovp"),
+};
+
+/* Default maps used by da9150-charger */
+static struct iio_map da9150_gpadc_default_maps[] = {
+	{
+		.consumer_dev_name = "da9150-charger",
+		.consumer_channel = "CHAN_IBUS",
+		.adc_channel_label = "IBUS",
+	},
+	{
+		.consumer_dev_name = "da9150-charger",
+		.consumer_channel = "CHAN_VBUS",
+		.adc_channel_label = "VBUS",
+	},
+	{
+		.consumer_dev_name = "da9150-charger",
+		.consumer_channel = "CHAN_TJUNC",
+		.adc_channel_label = "TJUNC_CORE",
+	},
+	{
+		.consumer_dev_name = "da9150-charger",
+		.consumer_channel = "CHAN_VBAT",
+		.adc_channel_label = "VBAT",
+	},
+	{},
+};
+
+static int da9150_gpadc_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct da9150 *da9150 = dev_get_drvdata(dev->parent);
+	struct da9150_gpadc *gpadc;
+	struct iio_dev *indio_dev;
+	int irq, ret;
+
+	indio_dev = devm_iio_device_alloc(dev, sizeof(*gpadc));
+	if (!indio_dev) {
+		dev_err(&pdev->dev, "Failed to allocate IIO device\n");
+		return -ENOMEM;
+	}
+	gpadc = iio_priv(indio_dev);
+
+	platform_set_drvdata(pdev, indio_dev);
+	gpadc->da9150 = da9150;
+	gpadc->dev = dev;
+	mutex_init(&gpadc->lock);
+	init_completion(&gpadc->complete);
+
+	irq = platform_get_irq_byname(pdev, "GPADC");
+	if (irq < 0) {
+		dev_err(dev, "Failed to get IRQ: %d\n", irq);
+		return irq;
+	}
+
+	ret = devm_request_threaded_irq(dev, irq, NULL, da9150_gpadc_irq,
+					IRQF_ONESHOT, "GPADC", gpadc);
+	if (ret) {
+		dev_err(dev, "Failed to request IRQ %d: %d\n", irq, ret);
+		return ret;
+	}
+
+	ret = iio_map_array_register(indio_dev, da9150_gpadc_default_maps);
+	if (ret) {
+		dev_err(dev, "Failed to register IIO maps: %d\n", ret);
+		return ret;
+	}
+
+	indio_dev->name = dev_name(dev);
+	indio_dev->dev.parent = dev;
+	indio_dev->dev.of_node = pdev->dev.of_node;
+	indio_dev->info = &da9150_gpadc_info;
+	indio_dev->modes = INDIO_DIRECT_MODE;
+	indio_dev->channels = da9150_gpadc_channels;
+	indio_dev->num_channels = ARRAY_SIZE(da9150_gpadc_channels);
+
+	ret = iio_device_register(indio_dev);
+	if (ret) {
+		dev_err(dev, "Failed to register IIO device: %d\n", ret);
+		goto iio_map_unreg;
+	}
+
+	return 0;
+
+iio_map_unreg:
+	iio_map_array_unregister(indio_dev);
+
+	return ret;
+}
+
+static int da9150_gpadc_remove(struct platform_device *pdev)
+{
+	struct iio_dev *indio_dev = platform_get_drvdata(pdev);
+
+	iio_device_unregister(indio_dev);
+	iio_map_array_unregister(indio_dev);
+
+	return 0;
+}
+
+static struct platform_driver da9150_gpadc_driver = {
+	.driver = {
+		.name = "da9150-gpadc",
+	},
+	.probe = da9150_gpadc_probe,
+	.remove = da9150_gpadc_remove,
+};
+
+module_platform_driver(da9150_gpadc_driver);
+
+MODULE_DESCRIPTION("GPADC Driver for DA9150");
+MODULE_AUTHOR("Adam Thomson <Adam.Thomson.Opensource@diasemi.com>");
+MODULE_LICENSE("GPL");
diff --git a/drivers/iio/adc/mcp3422.c b/drivers/iio/adc/mcp3422.c
index 5167225..b96c636 100644
--- a/drivers/iio/adc/mcp3422.c
+++ b/drivers/iio/adc/mcp3422.c
@@ -58,20 +58,11 @@
 		.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SAMP_FREQ), \
 	}
 
-/* LSB is in nV to eliminate floating point */
-static const u32 rates_to_lsb[] = {1000000, 250000, 62500, 15625};
-
-/*
- *  scales calculated as:
- *  rates_to_lsb[sample_rate] / (1 << pga);
- *  pga is 1 for 0, 2
- */
-
 static const int mcp3422_scales[4][4] = {
-	{ 1000000, 250000, 62500, 15625 },
-	{ 500000 , 125000, 31250, 7812 },
-	{ 250000 , 62500 , 15625, 3906 },
-	{ 125000 , 31250 , 7812 , 1953 } };
+	{ 1000000, 500000, 250000, 125000 },
+	{ 250000 , 125000, 62500 , 31250  },
+	{ 62500  , 31250 , 15625 , 7812   },
+	{ 15625  , 7812  , 3906  , 1953   } };
 
 /* Constant msleep times for data acquisitions */
 static const int mcp3422_read_times[4] = {
diff --git a/drivers/iio/adc/qcom-spmi-iadc.c b/drivers/iio/adc/qcom-spmi-iadc.c
index b9666f2..fabd24e 100644
--- a/drivers/iio/adc/qcom-spmi-iadc.c
+++ b/drivers/iio/adc/qcom-spmi-iadc.c
@@ -296,7 +296,8 @@ static int iadc_do_conversion(struct iadc_chip *iadc, int chan, u16 *data)
 	if (iadc->poll_eoc) {
 		ret = iadc_poll_wait_eoc(iadc, wait);
 	} else {
-		ret = wait_for_completion_timeout(&iadc->complete, wait);
+		ret = wait_for_completion_timeout(&iadc->complete,
+			usecs_to_jiffies(wait));
 		if (!ret)
 			ret = -ETIMEDOUT;
 		else
diff --git a/drivers/iio/adc/ti_am335x_adc.c b/drivers/iio/adc/ti_am335x_adc.c
index 2e5cc44..a0e7161 100644
--- a/drivers/iio/adc/ti_am335x_adc.c
+++ b/drivers/iio/adc/ti_am335x_adc.c
@@ -188,12 +188,11 @@ static int tiadc_buffer_preenable(struct iio_dev *indio_dev)
 static int tiadc_buffer_postenable(struct iio_dev *indio_dev)
 {
 	struct tiadc_device *adc_dev = iio_priv(indio_dev);
-	struct iio_buffer *buffer = indio_dev->buffer;
 	unsigned int enb = 0;
 	u8 bit;
 
 	tiadc_step_config(indio_dev);
-	for_each_set_bit(bit, buffer->scan_mask, adc_dev->channels)
+	for_each_set_bit(bit, indio_dev->active_scan_mask, adc_dev->channels)
 		enb |= (get_adc_step_bit(adc_dev, bit) << 1);
 	adc_dev->buffer_en_ch_steps = enb;
 
diff --git a/drivers/iio/adc/vf610_adc.c b/drivers/iio/adc/vf610_adc.c
index 8ec353c..56292ae 100644
--- a/drivers/iio/adc/vf610_adc.c
+++ b/drivers/iio/adc/vf610_adc.c
@@ -141,9 +141,13 @@ struct vf610_adc {
 	struct regulator *vref;
 	struct vf610_adc_feature adc_feature;
 
+	u32 sample_freq_avail[5];
+
 	struct completion completion;
 };
 
+static const u32 vf610_hw_avgs[] = { 1, 4, 8, 16, 32 };
+
 #define VF610_ADC_CHAN(_idx, _chan_type) {			\
 	.type = (_chan_type),					\
 	.indexed = 1,						\
@@ -180,35 +184,47 @@ static const struct iio_chan_spec vf610_adc_iio_channels[] = {
 	/* sentinel */
 };
 
-/*
- * ADC sample frequency, unit is ADCK cycles.
- * ADC clk source is ipg clock, which is the same as bus clock.
- *
- * ADC conversion time = SFCAdder + AverageNum x (BCT + LSTAdder)
- * SFCAdder: fixed to 6 ADCK cycles
- * AverageNum: 1, 4, 8, 16, 32 samples for hardware average.
- * BCT (Base Conversion Time): fixed to 25 ADCK cycles for 12 bit mode
- * LSTAdder(Long Sample Time): fixed to 3 ADCK cycles
- *
- * By default, enable 12 bit resolution mode, clock source
- * set to ipg clock, So get below frequency group:
- */
-static const u32 vf610_sample_freq_avail[5] =
-{1941176, 559332, 286957, 145374, 73171};
+static inline void vf610_adc_calculate_rates(struct vf610_adc *info)
+{
+	unsigned long adck_rate, ipg_rate = clk_get_rate(info->clk);
+	int i;
+
+	/*
+	 * Calculate ADC sample frequencies
+	 * Sample time unit is ADCK cycles. ADCK clk source is ipg clock,
+	 * which is the same as bus clock.
+	 *
+	 * ADC conversion time = SFCAdder + AverageNum x (BCT + LSTAdder)
+	 * SFCAdder: fixed to 6 ADCK cycles
+	 * AverageNum: 1, 4, 8, 16, 32 samples for hardware average.
+	 * BCT (Base Conversion Time): fixed to 25 ADCK cycles for 12 bit mode
+	 * LSTAdder(Long Sample Time): fixed to 3 ADCK cycles
+	 */
+	adck_rate = ipg_rate / info->adc_feature.clk_div;
+	for (i = 0; i < ARRAY_SIZE(vf610_hw_avgs); i++)
+		info->sample_freq_avail[i] =
+			adck_rate / (6 + vf610_hw_avgs[i] * (25 + 3));
+}
 
 static inline void vf610_adc_cfg_init(struct vf610_adc *info)
 {
+	struct vf610_adc_feature *adc_feature = &info->adc_feature;
+
 	/* set default Configuration for ADC controller */
-	info->adc_feature.clk_sel = VF610_ADCIOC_BUSCLK_SET;
-	info->adc_feature.vol_ref = VF610_ADCIOC_VR_VREF_SET;
+	adc_feature->clk_sel = VF610_ADCIOC_BUSCLK_SET;
+	adc_feature->vol_ref = VF610_ADCIOC_VR_VREF_SET;
+
+	adc_feature->calibration = true;
+	adc_feature->ovwren = true;
+
+	adc_feature->res_mode = 12;
+	adc_feature->sample_rate = 1;
+	adc_feature->lpm = true;
 
-	info->adc_feature.calibration = true;
-	info->adc_feature.ovwren = true;
+	/* Use a save ADCK which is below 20MHz on all devices */
+	adc_feature->clk_div = 8;
 
-	info->adc_feature.clk_div = 1;
-	info->adc_feature.res_mode = 12;
-	info->adc_feature.sample_rate = 1;
-	info->adc_feature.lpm = true;
+	vf610_adc_calculate_rates(info);
 }
 
 static void vf610_adc_cfg_post_set(struct vf610_adc *info)
@@ -259,7 +275,6 @@ static void vf610_adc_cfg_post_set(struct vf610_adc *info)
 static void vf610_adc_calibration(struct vf610_adc *info)
 {
 	int adc_gc, hc_cfg;
-	int timeout;
 
 	if (!info->adc_feature.calibration)
 		return;
@@ -271,9 +286,7 @@ static void vf610_adc_calibration(struct vf610_adc *info)
 	adc_gc = readl(info->regs + VF610_REG_ADC_GC);
 	writel(adc_gc | VF610_ADC_CAL, info->regs + VF610_REG_ADC_GC);
 
-	timeout = wait_for_completion_timeout
-			(&info->completion, VF610_ADC_TIMEOUT);
-	if (timeout == 0)
+	if (!wait_for_completion_timeout(&info->completion, VF610_ADC_TIMEOUT))
 		dev_err(info->dev, "Timeout for adc calibration\n");
 
 	adc_gc = readl(info->regs + VF610_REG_ADC_GS);
@@ -290,12 +303,10 @@ static void vf610_adc_cfg_set(struct vf610_adc *info)
 
 	cfg_data = readl(info->regs + VF610_REG_ADC_CFG);
 
-	/* low power configuration */
 	cfg_data &= ~VF610_ADC_ADLPC_EN;
 	if (adc_feature->lpm)
 		cfg_data |= VF610_ADC_ADLPC_EN;
 
-	/* disable high speed */
 	cfg_data &= ~VF610_ADC_ADHSC_EN;
 
 	writel(cfg_data, info->regs + VF610_REG_ADC_CFG);
@@ -435,10 +446,27 @@ static irqreturn_t vf610_adc_isr(int irq, void *dev_id)
 	return IRQ_HANDLED;
 }
 
-static IIO_CONST_ATTR_SAMP_FREQ_AVAIL("1941176, 559332, 286957, 145374, 73171");
+static ssize_t vf610_show_samp_freq_avail(struct device *dev,
+				struct device_attribute *attr, char *buf)
+{
+	struct vf610_adc *info = iio_priv(dev_to_iio_dev(dev));
+	size_t len = 0;
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(info->sample_freq_avail); i++)
+		len += scnprintf(buf + len, PAGE_SIZE - len,
+			"%u ", info->sample_freq_avail[i]);
+
+	/* replace trailing space by newline */
+	buf[len - 1] = '\n';
+
+	return len;
+}
+
+static IIO_DEV_ATTR_SAMP_FREQ_AVAIL(vf610_show_samp_freq_avail);
 
 static struct attribute *vf610_attributes[] = {
-	&iio_const_attr_sampling_frequency_available.dev_attr.attr,
+	&iio_dev_attr_sampling_frequency_available.dev_attr.attr,
 	NULL
 };
 
@@ -502,7 +530,7 @@ static int vf610_read_raw(struct iio_dev *indio_dev,
 		return IIO_VAL_FRACTIONAL_LOG2;
 
 	case IIO_CHAN_INFO_SAMP_FREQ:
-		*val = vf610_sample_freq_avail[info->adc_feature.sample_rate];
+		*val = info->sample_freq_avail[info->adc_feature.sample_rate];
 		*val2 = 0;
 		return IIO_VAL_INT;
 
@@ -525,9 +553,9 @@ static int vf610_write_raw(struct iio_dev *indio_dev,
 	switch (mask) {
 		case IIO_CHAN_INFO_SAMP_FREQ:
 			for (i = 0;
-				i < ARRAY_SIZE(vf610_sample_freq_avail);
+				i < ARRAY_SIZE(info->sample_freq_avail);
 				i++)
-				if (val == vf610_sample_freq_avail[i]) {
+				if (val == info->sample_freq_avail[i]) {
 					info->adc_feature.sample_rate = i;
 					vf610_adc_sample_set(info);
 					return 0;
diff --git a/drivers/iio/common/ssp_sensors/ssp_dev.c b/drivers/iio/common/ssp_sensors/ssp_dev.c
index 52d7043..9a40097 100644
--- a/drivers/iio/common/ssp_sensors/ssp_dev.c
+++ b/drivers/iio/common/ssp_sensors/ssp_dev.c
@@ -437,7 +437,7 @@ int ssp_queue_ssp_refresh_task(struct ssp_data *data, unsigned int delay)
 }
 
 #ifdef CONFIG_OF
-static struct of_device_id ssp_of_match[] = {
+static const struct of_device_id ssp_of_match[] = {
 	{
 		.compatible	= "samsung,sensorhub-rinato",
 		.data		= &ssp_rinato_info,
@@ -640,6 +640,7 @@ static int ssp_remove(struct spi_device *spi)
 	return 0;
 }
 
+#ifdef CONFIG_PM_SLEEP
 static int ssp_suspend(struct device *dev)
 {
 	int ret;
@@ -688,6 +689,7 @@ static int ssp_resume(struct device *dev)
 
 	return 0;
 }
+#endif /* CONFIG_PM_SLEEP */
 
 static const struct dev_pm_ops ssp_pm_ops = {
 	SET_SYSTEM_SLEEP_PM_OPS(ssp_suspend, ssp_resume)
diff --git a/drivers/iio/dac/Kconfig b/drivers/iio/dac/Kconfig
index 2236ea2..13471a7 100644
--- a/drivers/iio/dac/Kconfig
+++ b/drivers/iio/dac/Kconfig
@@ -143,11 +143,16 @@ config AD7303
 	  ad7303.
 
 config MAX517
-	tristate "Maxim MAX517/518/519 DAC driver"
+	tristate "Maxim MAX517/518/519/520/521 DAC driver"
 	depends on I2C
 	help
-	  If you say yes here you get support for the Maxim chips MAX517,
-	  MAX518 and MAX519 (I2C 8-Bit DACs with rail-to-rail outputs).
+	  If you say yes here you get support for the following Maxim chips
+	  (I2C 8-Bit DACs with rail-to-rail outputs):
+	  MAX517 - Single channel, single reference
+	  MAX518 - Dual channel, ref=Vdd
+	  MAX519 - Dual channel, dual reference
+	  MAX520 - Quad channel, quad reference
+	  MAX521 - Octal channel, independent ref for ch0-3, shared ref for ch4-7
 
 	  This driver can also be built as a module.  If so, the module
 	  will be called max517.
diff --git a/drivers/iio/dac/ad5686.c b/drivers/iio/dac/ad5686.c
index f57562a..15c73e2 100644
--- a/drivers/iio/dac/ad5686.c
+++ b/drivers/iio/dac/ad5686.c
@@ -322,7 +322,7 @@ static int ad5686_probe(struct spi_device *spi)
 	st = iio_priv(indio_dev);
 	spi_set_drvdata(spi, indio_dev);
 
-	st->reg = devm_regulator_get(&spi->dev, "vcc");
+	st->reg = devm_regulator_get_optional(&spi->dev, "vcc");
 	if (!IS_ERR(st->reg)) {
 		ret = regulator_enable(st->reg);
 		if (ret)
diff --git a/drivers/iio/dac/max517.c b/drivers/iio/dac/max517.c
index 9a82a72..5507b39 100644
--- a/drivers/iio/dac/max517.c
+++ b/drivers/iio/dac/max517.c
@@ -39,11 +39,13 @@ enum max517_device_ids {
 	ID_MAX517,
 	ID_MAX518,
 	ID_MAX519,
+	ID_MAX520,
+	ID_MAX521,
 };
 
 struct max517_data {
 	struct i2c_client	*client;
-	unsigned short		vref_mv[2];
+	unsigned short		vref_mv[8];
 };
 
 /*
@@ -149,7 +151,13 @@ static const struct iio_info max517_info = {
 
 static const struct iio_chan_spec max517_channels[] = {
 	MAX517_CHANNEL(0),
-	MAX517_CHANNEL(1)
+	MAX517_CHANNEL(1),
+	MAX517_CHANNEL(2),
+	MAX517_CHANNEL(3),
+	MAX517_CHANNEL(4),
+	MAX517_CHANNEL(5),
+	MAX517_CHANNEL(6),
+	MAX517_CHANNEL(7),
 };
 
 static int max517_probe(struct i2c_client *client,
@@ -158,6 +166,7 @@ static int max517_probe(struct i2c_client *client,
 	struct max517_data *data;
 	struct iio_dev *indio_dev;
 	struct max517_platform_data *platform_data = client->dev.platform_data;
+	int chan;
 
 	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data));
 	if (!indio_dev)
@@ -169,11 +178,21 @@ static int max517_probe(struct i2c_client *client,
 	/* establish that the iio_dev is a child of the i2c device */
 	indio_dev->dev.parent = &client->dev;
 
-	/* reduced channel set for MAX517 */
-	if (id->driver_data == ID_MAX517)
-		indio_dev->num_channels = 1;
-	else
+	switch (id->driver_data) {
+	case ID_MAX521:
+		indio_dev->num_channels = 8;
+		break;
+	case ID_MAX520:
+		indio_dev->num_channels = 4;
+		break;
+	case ID_MAX519:
+	case ID_MAX518:
 		indio_dev->num_channels = 2;
+		break;
+	default:  /* single channel for MAX517 */
+		indio_dev->num_channels = 1;
+		break;
+	}
 	indio_dev->channels = max517_channels;
 	indio_dev->modes = INDIO_DIRECT_MODE;
 	indio_dev->info = &max517_info;
@@ -182,11 +201,11 @@ static int max517_probe(struct i2c_client *client,
 	 * Reference voltage on MAX518 and default is 5V, else take vref_mv
 	 * from platform_data
 	 */
-	if (id->driver_data == ID_MAX518 || !platform_data) {
-		data->vref_mv[0] = data->vref_mv[1] = 5000; /* mV */
-	} else {
-		data->vref_mv[0] = platform_data->vref_mv[0];
-		data->vref_mv[1] = platform_data->vref_mv[1];
+	for (chan = 0; chan < indio_dev->num_channels; chan++) {
+		if (id->driver_data == ID_MAX518 || !platform_data)
+			data->vref_mv[chan] = 5000; /* mV */
+		else
+			data->vref_mv[chan] = platform_data->vref_mv[chan];
 	}
 
 	return iio_device_register(indio_dev);
@@ -202,6 +221,8 @@ static const struct i2c_device_id max517_id[] = {
 	{ "max517", ID_MAX517 },
 	{ "max518", ID_MAX518 },
 	{ "max519", ID_MAX519 },
+	{ "max520", ID_MAX520 },
+	{ "max521", ID_MAX521 },
 	{ }
 };
 MODULE_DEVICE_TABLE(i2c, max517_id);
@@ -218,5 +239,5 @@ static struct i2c_driver max517_driver = {
 module_i2c_driver(max517_driver);
 
 MODULE_AUTHOR("Roland Stigge <stigge@antcom.de>");
-MODULE_DESCRIPTION("MAX517/MAX518/MAX519 8-bit DAC");
+MODULE_DESCRIPTION("MAX517/518/519/520/521 8-bit DAC");
 MODULE_LICENSE("GPL");
diff --git a/drivers/iio/gyro/bmg160.c b/drivers/iio/gyro/bmg160.c
index 60451b3..4415f55 100644
--- a/drivers/iio/gyro/bmg160.c
+++ b/drivers/iio/gyro/bmg160.c
@@ -822,7 +822,7 @@ static irqreturn_t bmg160_trigger_handler(int irq, void *p)
 	int bit, ret, i = 0;
 
 	mutex_lock(&data->mutex);
-	for_each_set_bit(bit, indio_dev->buffer->scan_mask,
+	for_each_set_bit(bit, indio_dev->active_scan_mask,
 			 indio_dev->masklength) {
 		ret = i2c_smbus_read_word_data(data->client,
 					       BMG160_AXIS_TO_REG(bit));
@@ -1001,16 +1001,12 @@ static int bmg160_gpio_probe(struct i2c_client *client,
 	dev = &client->dev;
 
 	/* data ready gpio interrupt pin */
-	gpio = devm_gpiod_get_index(dev, BMG160_GPIO_NAME, 0);
+	gpio = devm_gpiod_get_index(dev, BMG160_GPIO_NAME, 0, GPIOD_IN);
 	if (IS_ERR(gpio)) {
 		dev_err(dev, "acpi gpio get index failed\n");
 		return PTR_ERR(gpio);
 	}
 
-	ret = gpiod_direction_input(gpio);
-	if (ret)
-		return ret;
-
 	ret = gpiod_to_irq(gpio);
 
 	dev_dbg(dev, "GPIO resource, no:%d irq:%d\n", desc_to_gpio(gpio), ret);
diff --git a/drivers/iio/gyro/itg3200_core.c b/drivers/iio/gyro/itg3200_core.c
index 6a8020d..f0fd940 100644
--- a/drivers/iio/gyro/itg3200_core.c
+++ b/drivers/iio/gyro/itg3200_core.c
@@ -223,6 +223,10 @@ static int itg3200_initial_setup(struct iio_dev *indio_dev)
 	int ret;
 	u8 val;
 
+	ret = itg3200_reset(indio_dev);
+	if (ret)
+		goto err_ret;
+
 	ret = itg3200_read_reg_8(indio_dev, ITG3200_REG_ADDRESS, &val);
 	if (ret)
 		goto err_ret;
@@ -233,10 +237,6 @@ static int itg3200_initial_setup(struct iio_dev *indio_dev)
 		goto err_ret;
 	}
 
-	ret = itg3200_reset(indio_dev);
-	if (ret)
-		goto err_ret;
-
 	ret = itg3200_enable_full_scale(indio_dev);
 err_ret:
 	return ret;
@@ -351,6 +351,26 @@ static int itg3200_remove(struct i2c_client *client)
 	return 0;
 }
 
+static int __maybe_unused itg3200_suspend(struct device *dev)
+{
+	struct iio_dev *indio_dev = dev_get_drvdata(dev);
+	struct itg3200 *st = iio_priv(indio_dev);
+
+	dev_dbg(&st->i2c->dev, "suspend device");
+
+	return itg3200_write_reg_8(indio_dev, ITG3200_REG_POWER_MANAGEMENT,
+				   ITG3200_SLEEP);
+}
+
+static int __maybe_unused itg3200_resume(struct device *dev)
+{
+	struct iio_dev *indio_dev = dev_get_drvdata(dev);
+
+	return itg3200_initial_setup(indio_dev);
+}
+
+static SIMPLE_DEV_PM_OPS(itg3200_pm_ops, itg3200_suspend, itg3200_resume);
+
 static const struct i2c_device_id itg3200_id[] = {
 	{ "itg3200", 0 },
 	{ }
@@ -361,6 +381,7 @@ static struct i2c_driver itg3200_driver = {
 	.driver = {
 		.owner  = THIS_MODULE,
 		.name	= "itg3200",
+		.pm	= &itg3200_pm_ops,
 	},
 	.id_table	= itg3200_id,
 	.probe		= itg3200_probe,
diff --git a/drivers/iio/gyro/st_gyro_core.c b/drivers/iio/gyro/st_gyro_core.c
index f07a233..21395f2 100644
--- a/drivers/iio/gyro/st_gyro_core.c
+++ b/drivers/iio/gyro/st_gyro_core.c
@@ -87,6 +87,31 @@
 #define ST_GYRO_2_DRDY_IRQ_INT2_MASK		0x08
 #define ST_GYRO_2_MULTIREAD_BIT			true
 
+/* CUSTOM VALUES FOR SENSOR 3 */
+#define ST_GYRO_3_WAI_EXP			0xd7
+#define ST_GYRO_3_ODR_ADDR			0x20
+#define ST_GYRO_3_ODR_MASK			0xc0
+#define ST_GYRO_3_ODR_AVL_95HZ_VAL		0x00
+#define ST_GYRO_3_ODR_AVL_190HZ_VAL		0x01
+#define ST_GYRO_3_ODR_AVL_380HZ_VAL		0x02
+#define ST_GYRO_3_ODR_AVL_760HZ_VAL		0x03
+#define ST_GYRO_3_PW_ADDR			0x20
+#define ST_GYRO_3_PW_MASK			0x08
+#define ST_GYRO_3_FS_ADDR			0x23
+#define ST_GYRO_3_FS_MASK			0x30
+#define ST_GYRO_3_FS_AVL_250_VAL		0x00
+#define ST_GYRO_3_FS_AVL_500_VAL		0x01
+#define ST_GYRO_3_FS_AVL_2000_VAL		0x02
+#define ST_GYRO_3_FS_AVL_250_GAIN		IIO_DEGREE_TO_RAD(8750)
+#define ST_GYRO_3_FS_AVL_500_GAIN		IIO_DEGREE_TO_RAD(17500)
+#define ST_GYRO_3_FS_AVL_2000_GAIN		IIO_DEGREE_TO_RAD(70000)
+#define ST_GYRO_3_BDU_ADDR			0x23
+#define ST_GYRO_3_BDU_MASK			0x80
+#define ST_GYRO_3_DRDY_IRQ_ADDR			0x22
+#define ST_GYRO_3_DRDY_IRQ_INT2_MASK		0x08
+#define ST_GYRO_3_MULTIREAD_BIT			true
+
+
 static const struct iio_chan_spec st_gyro_16bit_channels[] = {
 	ST_SENSORS_LSM_CHANNELS(IIO_ANGL_VEL,
 			BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE),
@@ -225,6 +250,64 @@ static const struct st_sensor_settings st_gyro_sensors_settings[] = {
 		.multi_read_bit = ST_GYRO_2_MULTIREAD_BIT,
 		.bootime = 2,
 	},
+	{
+		.wai = ST_GYRO_3_WAI_EXP,
+		.sensors_supported = {
+			[0] = L3GD20_GYRO_DEV_NAME,
+		},
+		.ch = (struct iio_chan_spec *)st_gyro_16bit_channels,
+		.odr = {
+			.addr = ST_GYRO_3_ODR_ADDR,
+			.mask = ST_GYRO_3_ODR_MASK,
+			.odr_avl = {
+				{ 95, ST_GYRO_3_ODR_AVL_95HZ_VAL, },
+				{ 190, ST_GYRO_3_ODR_AVL_190HZ_VAL, },
+				{ 380, ST_GYRO_3_ODR_AVL_380HZ_VAL, },
+				{ 760, ST_GYRO_3_ODR_AVL_760HZ_VAL, },
+			},
+		},
+		.pw = {
+			.addr = ST_GYRO_3_PW_ADDR,
+			.mask = ST_GYRO_3_PW_MASK,
+			.value_on = ST_SENSORS_DEFAULT_POWER_ON_VALUE,
+			.value_off = ST_SENSORS_DEFAULT_POWER_OFF_VALUE,
+		},
+		.enable_axis = {
+			.addr = ST_SENSORS_DEFAULT_AXIS_ADDR,
+			.mask = ST_SENSORS_DEFAULT_AXIS_MASK,
+		},
+		.fs = {
+			.addr = ST_GYRO_3_FS_ADDR,
+			.mask = ST_GYRO_3_FS_MASK,
+			.fs_avl = {
+				[0] = {
+					.num = ST_GYRO_FS_AVL_250DPS,
+					.value = ST_GYRO_3_FS_AVL_250_VAL,
+					.gain = ST_GYRO_3_FS_AVL_250_GAIN,
+				},
+				[1] = {
+					.num = ST_GYRO_FS_AVL_500DPS,
+					.value = ST_GYRO_3_FS_AVL_500_VAL,
+					.gain = ST_GYRO_3_FS_AVL_500_GAIN,
+				},
+				[2] = {
+					.num = ST_GYRO_FS_AVL_2000DPS,
+					.value = ST_GYRO_3_FS_AVL_2000_VAL,
+					.gain = ST_GYRO_3_FS_AVL_2000_GAIN,
+				},
+			},
+		},
+		.bdu = {
+			.addr = ST_GYRO_3_BDU_ADDR,
+			.mask = ST_GYRO_3_BDU_MASK,
+		},
+		.drdy_irq = {
+			.addr = ST_GYRO_3_DRDY_IRQ_ADDR,
+			.mask_int2 = ST_GYRO_3_DRDY_IRQ_INT2_MASK,
+		},
+		.multi_read_bit = ST_GYRO_3_MULTIREAD_BIT,
+		.bootime = 2,
+	},
 };
 
 static int st_gyro_read_raw(struct iio_dev *indio_dev,
diff --git a/drivers/iio/humidity/dht11.c b/drivers/iio/humidity/dht11.c
index 623c145..7d79a1a 100644
--- a/drivers/iio/humidity/dht11.c
+++ b/drivers/iio/humidity/dht11.c
@@ -29,6 +29,7 @@
 #include <linux/wait.h>
 #include <linux/bitops.h>
 #include <linux/completion.h>
+#include <linux/mutex.h>
 #include <linux/delay.h>
 #include <linux/gpio.h>
 #include <linux/of_gpio.h>
@@ -39,8 +40,12 @@
 
 #define DHT11_DATA_VALID_TIME	2000000000  /* 2s in ns */
 
-#define DHT11_EDGES_PREAMBLE 4
+#define DHT11_EDGES_PREAMBLE 2
 #define DHT11_BITS_PER_READ 40
+/*
+ * Note that when reading the sensor actually 84 edges are detected, but
+ * since the last edge is not significant, we only store 83:
+ */
 #define DHT11_EDGES_PER_READ (2*DHT11_BITS_PER_READ + DHT11_EDGES_PREAMBLE + 1)
 
 /* Data transmission timing (nano seconds) */
@@ -57,6 +62,7 @@ struct dht11 {
 	int				irq;
 
 	struct completion		completion;
+	struct mutex			lock;
 
 	s64				timestamp;
 	int				temperature;
@@ -88,7 +94,7 @@ static int dht11_decode(struct dht11 *dht11, int offset)
 	unsigned char temp_int, temp_dec, hum_int, hum_dec, checksum;
 
 	/* Calculate timestamp resolution */
-	for (i = 0; i < dht11->num_edges; ++i) {
+	for (i = 1; i < dht11->num_edges; ++i) {
 		t = dht11->edges[i].ts - dht11->edges[i-1].ts;
 		if (t > 0 && t < timeres)
 			timeres = t;
@@ -138,6 +144,27 @@ static int dht11_decode(struct dht11 *dht11, int offset)
 	return 0;
 }
 
+/*
+ * IRQ handler called on GPIO edges
+ */
+static irqreturn_t dht11_handle_irq(int irq, void *data)
+{
+	struct iio_dev *iio = data;
+	struct dht11 *dht11 = iio_priv(iio);
+
+	/* TODO: Consider making the handler safe for IRQ sharing */
+	if (dht11->num_edges < DHT11_EDGES_PER_READ && dht11->num_edges >= 0) {
+		dht11->edges[dht11->num_edges].ts = iio_get_time_ns();
+		dht11->edges[dht11->num_edges++].value =
+						gpio_get_value(dht11->gpio);
+
+		if (dht11->num_edges >= DHT11_EDGES_PER_READ)
+			complete(&dht11->completion);
+	}
+
+	return IRQ_HANDLED;
+}
+
 static int dht11_read_raw(struct iio_dev *iio_dev,
 			const struct iio_chan_spec *chan,
 			int *val, int *val2, long m)
@@ -145,6 +172,7 @@ static int dht11_read_raw(struct iio_dev *iio_dev,
 	struct dht11 *dht11 = iio_priv(iio_dev);
 	int ret;
 
+	mutex_lock(&dht11->lock);
 	if (dht11->timestamp + DHT11_DATA_VALID_TIME < iio_get_time_ns()) {
 		reinit_completion(&dht11->completion);
 
@@ -157,8 +185,17 @@ static int dht11_read_raw(struct iio_dev *iio_dev,
 		if (ret)
 			goto err;
 
+		ret = request_irq(dht11->irq, dht11_handle_irq,
+				  IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
+				  iio_dev->name, iio_dev);
+		if (ret)
+			goto err;
+
 		ret = wait_for_completion_killable_timeout(&dht11->completion,
 								 HZ);
+
+		free_irq(dht11->irq, iio_dev);
+
 		if (ret == 0 && dht11->num_edges < DHT11_EDGES_PER_READ - 1) {
 			dev_err(&iio_dev->dev,
 					"Only %d signal edges detected\n",
@@ -185,6 +222,7 @@ static int dht11_read_raw(struct iio_dev *iio_dev,
 		ret = -EINVAL;
 err:
 	dht11->num_edges = -1;
+	mutex_unlock(&dht11->lock);
 	return ret;
 }
 
@@ -193,27 +231,6 @@ static const struct iio_info dht11_iio_info = {
 	.read_raw		= dht11_read_raw,
 };
 
-/*
- * IRQ handler called on GPIO edges
-*/
-static irqreturn_t dht11_handle_irq(int irq, void *data)
-{
-	struct iio_dev *iio = data;
-	struct dht11 *dht11 = iio_priv(iio);
-
-	/* TODO: Consider making the handler safe for IRQ sharing */
-	if (dht11->num_edges < DHT11_EDGES_PER_READ && dht11->num_edges >= 0) {
-		dht11->edges[dht11->num_edges].ts = iio_get_time_ns();
-		dht11->edges[dht11->num_edges++].value =
-						gpio_get_value(dht11->gpio);
-
-		if (dht11->num_edges >= DHT11_EDGES_PER_READ)
-			complete(&dht11->completion);
-	}
-
-	return IRQ_HANDLED;
-}
-
 static const struct iio_chan_spec dht11_chan_spec[] = {
 	{ .type = IIO_TEMP,
 		.info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED), },
@@ -256,11 +273,6 @@ static int dht11_probe(struct platform_device *pdev)
 		dev_err(dev, "GPIO %d has no interrupt\n", dht11->gpio);
 		return -EINVAL;
 	}
-	ret = devm_request_irq(dev, dht11->irq, dht11_handle_irq,
-				IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
-				pdev->name, iio);
-	if (ret)
-		return ret;
 
 	dht11->timestamp = iio_get_time_ns() - DHT11_DATA_VALID_TIME - 1;
 	dht11->num_edges = -1;
@@ -268,6 +280,7 @@ static int dht11_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, iio);
 
 	init_completion(&dht11->completion);
+	mutex_init(&dht11->lock);
 	iio->name = pdev->name;
 	iio->dev.parent = &pdev->dev;
 	iio->info = &dht11_iio_info;
diff --git a/drivers/iio/humidity/si7020.c b/drivers/iio/humidity/si7020.c
index b541646..fa3b809 100644
--- a/drivers/iio/humidity/si7020.c
+++ b/drivers/iio/humidity/si7020.c
@@ -45,12 +45,12 @@ static int si7020_read_raw(struct iio_dev *indio_dev,
 			   struct iio_chan_spec const *chan, int *val,
 			   int *val2, long mask)
 {
-	struct i2c_client *client = iio_priv(indio_dev);
+	struct i2c_client **client = iio_priv(indio_dev);
 	int ret;
 
 	switch (mask) {
 	case IIO_CHAN_INFO_RAW:
-		ret = i2c_smbus_read_word_data(client,
+		ret = i2c_smbus_read_word_data(*client,
 					       chan->type == IIO_TEMP ?
 					       SI7020CMD_TEMP_HOLD :
 					       SI7020CMD_RH_HOLD);
@@ -126,7 +126,7 @@ static int si7020_probe(struct i2c_client *client,
 	/* Wait the maximum power-up time after software reset. */
 	msleep(15);
 
-	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*client));
+	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data));
 	if (!indio_dev)
 		return -ENOMEM;
 
diff --git a/drivers/iio/imu/adis16400_core.c b/drivers/iio/imu/adis16400_core.c
index b70873d..fa795dc 100644
--- a/drivers/iio/imu/adis16400_core.c
+++ b/drivers/iio/imu/adis16400_core.c
@@ -26,6 +26,7 @@
 #include <linux/list.h>
 #include <linux/module.h>
 #include <linux/debugfs.h>
+#include <linux/bitops.h>
 
 #include <linux/iio/iio.h>
 #include <linux/iio/sysfs.h>
@@ -414,7 +415,7 @@ static int adis16400_read_raw(struct iio_dev *indio_dev,
 		mutex_unlock(&indio_dev->mlock);
 		if (ret)
 			return ret;
-		val16 = ((val16 & 0xFFF) << 4) >> 4;
+		val16 = sign_extend32(val16, 11);
 		*val = val16;
 		return IIO_VAL_INT;
 	case IIO_CHAN_INFO_OFFSET:
diff --git a/drivers/iio/imu/adis_trigger.c b/drivers/iio/imu/adis_trigger.c
index e0017c2..f53e9a8 100644
--- a/drivers/iio/imu/adis_trigger.c
+++ b/drivers/iio/imu/adis_trigger.c
@@ -60,7 +60,7 @@ int adis_probe_trigger(struct adis *adis, struct iio_dev *indio_dev)
 	iio_trigger_set_drvdata(adis->trig, adis);
 	ret = iio_trigger_register(adis->trig);
 
-	indio_dev->trig = adis->trig;
+	indio_dev->trig = iio_trigger_get(adis->trig);
 	if (ret)
 		goto error_free_irq;
 
diff --git a/drivers/iio/imu/inv_mpu6050/Makefile b/drivers/iio/imu/inv_mpu6050/Makefile
index 3a677c7..f566f6a 100644
--- a/drivers/iio/imu/inv_mpu6050/Makefile
+++ b/drivers/iio/imu/inv_mpu6050/Makefile
@@ -3,4 +3,4 @@
 #
 
 obj-$(CONFIG_INV_MPU6050_IIO) += inv-mpu6050.o
-inv-mpu6050-objs := inv_mpu_core.o inv_mpu_ring.o inv_mpu_trigger.o
+inv-mpu6050-objs := inv_mpu_core.o inv_mpu_ring.o inv_mpu_trigger.o inv_mpu_acpi.o
diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_acpi.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_acpi.c
new file mode 100644
index 0000000..1c982a5
--- /dev/null
+++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_acpi.c
@@ -0,0 +1,211 @@
+/*
+ * inv_mpu_acpi: ACPI processing for creating client devices
+ * Copyright (c) 2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#ifdef CONFIG_ACPI
+
+#include <linux/kernel.h>
+#include <linux/i2c.h>
+#include <linux/dmi.h>
+#include <linux/acpi.h>
+#include "inv_mpu_iio.h"
+
+enum inv_mpu_product_name {
+	INV_MPU_NOT_MATCHED,
+	INV_MPU_ASUS_T100TA,
+};
+
+static enum inv_mpu_product_name matched_product_name;
+
+static int __init asus_t100_matched(const struct dmi_system_id *d)
+{
+	matched_product_name = INV_MPU_ASUS_T100TA;
+
+	return 0;
+}
+
+static const struct dmi_system_id inv_mpu_dev_list[] = {
+	{
+	.callback = asus_t100_matched,
+	.ident = "Asus Transformer Book T100",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "T100TA"),
+			DMI_MATCH(DMI_PRODUCT_VERSION, "1.0"),
+		},
+	},
+	/* Add more matching tables here..*/
+	{}
+};
+
+static int asus_acpi_get_sensor_info(struct acpi_device *adev,
+				     struct i2c_client *client,
+				     struct i2c_board_info *info)
+{
+	struct acpi_buffer buffer = {ACPI_ALLOCATE_BUFFER, NULL};
+	int i;
+	acpi_status status;
+	union acpi_object *cpm;
+
+	status = acpi_evaluate_object(adev->handle, "CNF0", NULL, &buffer);
+	if (ACPI_FAILURE(status))
+		return -ENODEV;
+
+	cpm = buffer.pointer;
+	for (i = 0; i < cpm->package.count; ++i) {
+		union acpi_object *elem;
+		int j;
+
+		elem = &(cpm->package.elements[i]);
+		for (j = 0; j < elem->package.count; ++j) {
+			union acpi_object *sub_elem;
+
+			sub_elem = &(elem->package.elements[j]);
+			if (sub_elem->type == ACPI_TYPE_STRING)
+				strlcpy(info->type, sub_elem->string.pointer,
+					sizeof(info->type));
+			else if (sub_elem->type == ACPI_TYPE_INTEGER) {
+				if (sub_elem->integer.value != client->addr) {
+					info->addr = sub_elem->integer.value;
+					break; /* Not a MPU6500 primary */
+				}
+			}
+		}
+	}
+
+	kfree(buffer.pointer);
+
+	return cpm->package.count;
+}
+
+static int acpi_i2c_check_resource(struct acpi_resource *ares, void *data)
+{
+	u32 *addr = data;
+
+	if (ares->type == ACPI_RESOURCE_TYPE_SERIAL_BUS) {
+		struct acpi_resource_i2c_serialbus *sb;
+
+		sb = &ares->data.i2c_serial_bus;
+		if (sb->type == ACPI_RESOURCE_SERIAL_TYPE_I2C) {
+			if (*addr)
+				*addr |= (sb->slave_address << 16);
+			else
+				*addr = sb->slave_address;
+		}
+	}
+
+	/* Tell the ACPI core that we already copied this address */
+	return 1;
+}
+
+static int inv_mpu_process_acpi_config(struct i2c_client *client,
+				       unsigned short *primary_addr,
+				       unsigned short *secondary_addr)
+{
+	const struct acpi_device_id *id;
+	struct acpi_device *adev;
+	u32 i2c_addr = 0;
+	LIST_HEAD(resources);
+	int ret;
+
+	id = acpi_match_device(client->dev.driver->acpi_match_table,
+			       &client->dev);
+	if (!id)
+		return -ENODEV;
+
+	adev = ACPI_COMPANION(&client->dev);
+	if (!adev)
+		return -ENODEV;
+
+	ret = acpi_dev_get_resources(adev, &resources,
+				     acpi_i2c_check_resource, &i2c_addr);
+	if (ret < 0)
+		return ret;
+
+	acpi_dev_free_resource_list(&resources);
+	*primary_addr = i2c_addr & 0x0000ffff;
+	*secondary_addr = (i2c_addr & 0xffff0000) >> 16;
+
+	return 0;
+}
+
+int inv_mpu_acpi_create_mux_client(struct inv_mpu6050_state *st)
+{
+
+	st->mux_client = NULL;
+	if (ACPI_HANDLE(&st->client->dev)) {
+		struct i2c_board_info info;
+		struct acpi_device *adev;
+		int ret = -1;
+
+		adev = ACPI_COMPANION(&st->client->dev);
+		memset(&info, 0, sizeof(info));
+
+		dmi_check_system(inv_mpu_dev_list);
+		switch (matched_product_name) {
+		case INV_MPU_ASUS_T100TA:
+			ret = asus_acpi_get_sensor_info(adev, st->client,
+							&info);
+			break;
+		/* Add more matched product processing here */
+		default:
+			break;
+		}
+
+		if (ret < 0) {
+			/* No matching DMI, so create device on INV6XX type */
+			unsigned short primary, secondary;
+
+			ret = inv_mpu_process_acpi_config(st->client, &primary,
+							  &secondary);
+			if (!ret && secondary) {
+				char *name;
+
+				info.addr = secondary;
+				strlcpy(info.type, dev_name(&adev->dev),
+					sizeof(info.type));
+				name = strchr(info.type, ':');
+				if (name)
+					*name = '\0';
+				strlcat(info.type, "-client",
+					sizeof(info.type));
+			} else
+				return 0; /* no secondary addr, which is OK */
+		}
+		st->mux_client = i2c_new_device(st->mux_adapter, &info);
+		if (!st->mux_client)
+			return -ENODEV;
+
+	}
+
+	return 0;
+}
+
+void inv_mpu_acpi_delete_mux_client(struct inv_mpu6050_state *st)
+{
+	if (st->mux_client)
+		i2c_unregister_device(st->mux_client);
+}
+#else
+
+#include "inv_mpu_iio.h"
+
+int inv_mpu_acpi_create_mux_client(struct inv_mpu6050_state *st)
+{
+	return 0;
+}
+
+void inv_mpu_acpi_delete_mux_client(struct inv_mpu6050_state *st)
+{
+}
+#endif
diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
index f73e60b..17d4bb1 100644
--- a/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
+++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
@@ -410,42 +410,46 @@ error_read_raw:
 	}
 }
 
-static int inv_mpu6050_write_fsr(struct inv_mpu6050_state *st, int fsr)
+static int inv_mpu6050_write_gyro_scale(struct inv_mpu6050_state *st, int val)
 {
-	int result;
+	int result, i;
 	u8 d;
 
-	if (fsr < 0 || fsr > INV_MPU6050_MAX_GYRO_FS_PARAM)
-		return -EINVAL;
-	if (fsr == st->chip_config.fsr)
-		return 0;
+	for (i = 0; i < ARRAY_SIZE(gyro_scale_6050); ++i) {
+		if (gyro_scale_6050[i] == val) {
+			d = (i << INV_MPU6050_GYRO_CONFIG_FSR_SHIFT);
+			result = inv_mpu6050_write_reg(st,
+					st->reg->gyro_config, d);
+			if (result)
+				return result;
 
-	d = (fsr << INV_MPU6050_GYRO_CONFIG_FSR_SHIFT);
-	result = inv_mpu6050_write_reg(st, st->reg->gyro_config, d);
-	if (result)
-		return result;
-	st->chip_config.fsr = fsr;
+			st->chip_config.fsr = i;
+			return 0;
+		}
+	}
 
-	return 0;
+	return -EINVAL;
 }
 
-static int inv_mpu6050_write_accel_fs(struct inv_mpu6050_state *st, int fs)
+static int inv_mpu6050_write_accel_scale(struct inv_mpu6050_state *st, int val)
 {
-	int result;
+	int result, i;
 	u8 d;
 
-	if (fs < 0 || fs > INV_MPU6050_MAX_ACCL_FS_PARAM)
-		return -EINVAL;
-	if (fs == st->chip_config.accl_fs)
-		return 0;
+	for (i = 0; i < ARRAY_SIZE(accel_scale); ++i) {
+		if (accel_scale[i] == val) {
+			d = (i << INV_MPU6050_ACCL_CONFIG_FSR_SHIFT);
+			result = inv_mpu6050_write_reg(st,
+					st->reg->accl_config, d);
+			if (result)
+				return result;
 
-	d = (fs << INV_MPU6050_ACCL_CONFIG_FSR_SHIFT);
-	result = inv_mpu6050_write_reg(st, st->reg->accl_config, d);
-	if (result)
-		return result;
-	st->chip_config.accl_fs = fs;
+			st->chip_config.accl_fs = i;
+			return 0;
+		}
+	}
 
-	return 0;
+	return -EINVAL;
 }
 
 static int inv_mpu6050_write_raw(struct iio_dev *indio_dev,
@@ -471,10 +475,10 @@ static int inv_mpu6050_write_raw(struct iio_dev *indio_dev,
 	case IIO_CHAN_INFO_SCALE:
 		switch (chan->type) {
 		case IIO_ANGL_VEL:
-			result = inv_mpu6050_write_fsr(st, val);
+			result = inv_mpu6050_write_gyro_scale(st, val2);
 			break;
 		case IIO_ACCEL:
-			result = inv_mpu6050_write_accel_fs(st, val);
+			result = inv_mpu6050_write_accel_scale(st, val2);
 			break;
 		default:
 			result = -EINVAL;
@@ -780,7 +784,11 @@ static int inv_mpu_probe(struct i2c_client *client,
 
 	i2c_set_clientdata(client, indio_dev);
 	indio_dev->dev.parent = &client->dev;
-	indio_dev->name = id->name;
+	/* id will be NULL when enumerated via ACPI */
+	if (id)
+		indio_dev->name = (char *)id->name;
+	else
+		indio_dev->name = (char *)dev_name(&client->dev);
 	indio_dev->channels = inv_mpu_channels;
 	indio_dev->num_channels = ARRAY_SIZE(inv_mpu_channels);
 
@@ -821,8 +829,14 @@ static int inv_mpu_probe(struct i2c_client *client,
 		goto out_unreg_device;
 	}
 
+	result = inv_mpu_acpi_create_mux_client(st);
+	if (result)
+		goto out_del_mux;
+
 	return 0;
 
+out_del_mux:
+	i2c_del_mux_adapter(st->mux_adapter);
 out_unreg_device:
 	iio_device_unregister(indio_dev);
 out_remove_trigger:
@@ -837,6 +851,7 @@ static int inv_mpu_remove(struct i2c_client *client)
 	struct iio_dev *indio_dev = i2c_get_clientdata(client);
 	struct inv_mpu6050_state *st = iio_priv(indio_dev);
 
+	inv_mpu_acpi_delete_mux_client(st);
 	i2c_del_mux_adapter(st->mux_adapter);
 	iio_device_unregister(indio_dev);
 	inv_mpu6050_remove_trigger(st);
diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h b/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h
index aa837de..db0a4a2 100644
--- a/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h
+++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h
@@ -121,6 +121,7 @@ struct inv_mpu6050_state {
 	spinlock_t time_stamp_lock;
 	struct i2c_client *client;
 	struct i2c_adapter *mux_adapter;
+	struct i2c_client *mux_client;
 	unsigned int powerup_count;
 	struct inv_mpu6050_platform_data plat_data;
 	DECLARE_KFIFO(timestamps, long long, TIMESTAMP_FIFO_SIZE);
@@ -251,3 +252,5 @@ int inv_reset_fifo(struct iio_dev *indio_dev);
 int inv_mpu6050_switch_engine(struct inv_mpu6050_state *st, bool en, u32 mask);
 int inv_mpu6050_write_reg(struct inv_mpu6050_state *st, int reg, u8 val);
 int inv_mpu6050_set_power_itg(struct inv_mpu6050_state *st, bool power_on);
+int inv_mpu_acpi_create_mux_client(struct inv_mpu6050_state *st);
+void inv_mpu_acpi_delete_mux_client(struct inv_mpu6050_state *st);
diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_ring.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_ring.c
index 0cd306a..ba27e27 100644
--- a/drivers/iio/imu/inv_mpu6050/inv_mpu_ring.c
+++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_ring.c
@@ -24,6 +24,16 @@
 #include <linux/poll.h>
 #include "inv_mpu_iio.h"
 
+static void inv_clear_kfifo(struct inv_mpu6050_state *st)
+{
+	unsigned long flags;
+
+	/* take the spin lock sem to avoid interrupt kick in */
+	spin_lock_irqsave(&st->time_stamp_lock, flags);
+	kfifo_reset(&st->timestamps);
+	spin_unlock_irqrestore(&st->time_stamp_lock, flags);
+}
+
 int inv_reset_fifo(struct iio_dev *indio_dev)
 {
 	int result;
@@ -50,6 +60,10 @@ int inv_reset_fifo(struct iio_dev *indio_dev)
 					INV_MPU6050_BIT_FIFO_RST);
 	if (result)
 		goto reset_fifo_fail;
+
+	/* clear timestamps fifo */
+	inv_clear_kfifo(st);
+
 	/* enable interrupt */
 	if (st->chip_config.accl_fifo_enable ||
 	    st->chip_config.gyro_fifo_enable) {
@@ -83,16 +97,6 @@ reset_fifo_fail:
 	return result;
 }
 
-static void inv_clear_kfifo(struct inv_mpu6050_state *st)
-{
-	unsigned long flags;
-
-	/* take the spin lock sem to avoid interrupt kick in */
-	spin_lock_irqsave(&st->time_stamp_lock, flags);
-	kfifo_reset(&st->timestamps);
-	spin_unlock_irqrestore(&st->time_stamp_lock, flags);
-}
-
 /**
  * inv_mpu6050_irq_handler() - Cache a timestamp at each data ready interrupt.
  */
@@ -184,7 +188,6 @@ end_session:
 flush_fifo:
 	/* Flush HW and SW FIFOs. */
 	inv_reset_fifo(indio_dev);
-	inv_clear_kfifo(st);
 	mutex_unlock(&indio_dev->mlock);
 	iio_trigger_notify_done(indio_dev->trig);
 
diff --git a/drivers/iio/imu/kmx61.c b/drivers/iio/imu/kmx61.c
index 5cc3692..462a010 100644
--- a/drivers/iio/imu/kmx61.c
+++ b/drivers/iio/imu/kmx61.c
@@ -169,19 +169,18 @@ static const u16 kmx61_uscale_table[] = {9582, 19163, 38326};
 static const struct {
 	int val;
 	int val2;
-	u8 odr_bits;
-} kmx61_samp_freq_table[] = { {12, 500000, 0x00},
-			{25, 0, 0x01},
-			{50, 0, 0x02},
-			{100, 0, 0x03},
-			{200, 0, 0x04},
-			{400, 0, 0x05},
-			{800, 0, 0x06},
-			{1600, 0, 0x07},
-			{0, 781000, 0x08},
-			{1, 563000, 0x09},
-			{3, 125000, 0x0A},
-			{6, 250000, 0x0B} };
+} kmx61_samp_freq_table[] = { {12, 500000},
+			{25, 0},
+			{50, 0},
+			{100, 0},
+			{200, 0},
+			{400, 0},
+			{800, 0},
+			{1600, 0},
+			{0, 781000},
+			{1, 563000},
+			{3, 125000},
+			{6, 250000} };
 
 static const struct {
 	int val;
@@ -302,24 +301,10 @@ static int kmx61_convert_freq_to_bit(int val, int val2)
 	for (i = 0; i < ARRAY_SIZE(kmx61_samp_freq_table); i++)
 		if (val == kmx61_samp_freq_table[i].val &&
 		    val2 == kmx61_samp_freq_table[i].val2)
-			return kmx61_samp_freq_table[i].odr_bits;
+			return i;
 	return -EINVAL;
 }
 
-static int kmx61_convert_bit_to_freq(u8 odr_bits, int *val, int *val2)
-{
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(kmx61_samp_freq_table); i++)
-		if (odr_bits == kmx61_samp_freq_table[i].odr_bits) {
-			*val = kmx61_samp_freq_table[i].val;
-			*val2 = kmx61_samp_freq_table[i].val2;
-			return 0;
-		}
-	return -EINVAL;
-}
-
-
 static int kmx61_convert_wake_up_odr_to_bit(int val, int val2)
 {
 	int i;
@@ -478,7 +463,7 @@ static int kmx61_set_odr(struct kmx61_data *data, int val, int val2, u8 device)
 
 static int kmx61_get_odr(struct kmx61_data *data, int *val, int *val2,
 			 u8 device)
-{	int i;
+{
 	u8 lodr_bits;
 
 	if (device & KMX61_ACC)
@@ -490,13 +475,13 @@ static int kmx61_get_odr(struct kmx61_data *data, int *val, int *val2,
 	else
 		return -EINVAL;
 
-	for (i = 0; i < ARRAY_SIZE(kmx61_samp_freq_table); i++)
-		if (lodr_bits == kmx61_samp_freq_table[i].odr_bits) {
-			*val = kmx61_samp_freq_table[i].val;
-			*val2 = kmx61_samp_freq_table[i].val2;
-			return 0;
-		}
-	return -EINVAL;
+	if (lodr_bits >= ARRAY_SIZE(kmx61_samp_freq_table))
+		return -EINVAL;
+
+	*val = kmx61_samp_freq_table[lodr_bits].val;
+	*val2 = kmx61_samp_freq_table[lodr_bits].val2;
+
+	return 0;
 }
 
 static int kmx61_set_range(struct kmx61_data *data, u8 range)
@@ -580,8 +565,11 @@ static int kmx61_chip_init(struct kmx61_data *data)
 	}
 	data->odr_bits = ret;
 
-	/* set output data rate for wake up (motion detection) function */
-	ret = kmx61_convert_bit_to_freq(data->odr_bits, &val, &val2);
+	/*
+	 * set output data rate for wake up (motion detection) function
+	 * to match data rate for accelerometer sampling
+	 */
+	ret = kmx61_get_odr(data, &val, &val2, KMX61_ACC);
 	if (ret < 0)
 		return ret;
 
@@ -1227,7 +1215,7 @@ static irqreturn_t kmx61_trigger_handler(int irq, void *p)
 		base = KMX61_MAG_XOUT_L;
 
 	mutex_lock(&data->lock);
-	for_each_set_bit(bit, indio_dev->buffer->scan_mask,
+	for_each_set_bit(bit, indio_dev->active_scan_mask,
 			 indio_dev->masklength) {
 		ret = kmx61_read_measurement(data, base, bit);
 		if (ret < 0) {
@@ -1267,16 +1255,12 @@ static int kmx61_gpio_probe(struct i2c_client *client, struct kmx61_data *data)
 	dev = &client->dev;
 
 	/* data ready gpio interrupt pin */
-	gpio = devm_gpiod_get_index(dev, KMX61_GPIO_NAME, 0);
+	gpio = devm_gpiod_get_index(dev, KMX61_GPIO_NAME, 0, GPIOD_IN);
 	if (IS_ERR(gpio)) {
 		dev_err(dev, "acpi gpio get index failed\n");
 		return PTR_ERR(gpio);
 	}
 
-	ret = gpiod_direction_input(gpio);
-	if (ret)
-		return ret;
-
 	ret = gpiod_to_irq(gpio);
 
 	dev_dbg(dev, "GPIO resource, no:%d irq:%d\n", desc_to_gpio(gpio), ret);
diff --git a/drivers/iio/industrialio-buffer.c b/drivers/iio/industrialio-buffer.c
index 7133314..df919f4 100644
--- a/drivers/iio/industrialio-buffer.c
+++ b/drivers/iio/industrialio-buffer.c
@@ -37,11 +37,57 @@ static bool iio_buffer_is_active(struct iio_buffer *buf)
 	return !list_empty(&buf->buffer_list);
 }
 
-static bool iio_buffer_data_available(struct iio_buffer *buf)
+static size_t iio_buffer_data_available(struct iio_buffer *buf)
 {
 	return buf->access->data_available(buf);
 }
 
+static int iio_buffer_flush_hwfifo(struct iio_dev *indio_dev,
+				   struct iio_buffer *buf, size_t required)
+{
+	if (!indio_dev->info->hwfifo_flush_to_buffer)
+		return -ENODEV;
+
+	return indio_dev->info->hwfifo_flush_to_buffer(indio_dev, required);
+}
+
+static bool iio_buffer_ready(struct iio_dev *indio_dev, struct iio_buffer *buf,
+			     size_t to_wait, int to_flush)
+{
+	size_t avail;
+	int flushed = 0;
+
+	/* wakeup if the device was unregistered */
+	if (!indio_dev->info)
+		return true;
+
+	/* drain the buffer if it was disabled */
+	if (!iio_buffer_is_active(buf)) {
+		to_wait = min_t(size_t, to_wait, 1);
+		to_flush = 0;
+	}
+
+	avail = iio_buffer_data_available(buf);
+
+	if (avail >= to_wait) {
+		/* force a flush for non-blocking reads */
+		if (!to_wait && !avail && to_flush)
+			iio_buffer_flush_hwfifo(indio_dev, buf, to_flush);
+		return true;
+	}
+
+	if (to_flush)
+		flushed = iio_buffer_flush_hwfifo(indio_dev, buf,
+						  to_wait - avail);
+	if (flushed <= 0)
+		return false;
+
+	if (avail + flushed >= to_wait)
+		return true;
+
+	return false;
+}
+
 /**
  * iio_buffer_read_first_n_outer() - chrdev read for buffer access
  *
@@ -53,6 +99,9 @@ ssize_t iio_buffer_read_first_n_outer(struct file *filp, char __user *buf,
 {
 	struct iio_dev *indio_dev = filp->private_data;
 	struct iio_buffer *rb = indio_dev->buffer;
+	size_t datum_size;
+	size_t to_wait = 0;
+	size_t to_read;
 	int ret;
 
 	if (!indio_dev->info)
@@ -61,19 +110,28 @@ ssize_t iio_buffer_read_first_n_outer(struct file *filp, char __user *buf,
 	if (!rb || !rb->access->read_first_n)
 		return -EINVAL;
 
+	datum_size = rb->bytes_per_datum;
+
+	/*
+	 * If datum_size is 0 there will never be anything to read from the
+	 * buffer, so signal end of file now.
+	 */
+	if (!datum_size)
+		return 0;
+
+	to_read = min_t(size_t, n / datum_size, rb->watermark);
+
+	if (!(filp->f_flags & O_NONBLOCK))
+		to_wait = to_read;
+
 	do {
-		if (!iio_buffer_data_available(rb)) {
-			if (filp->f_flags & O_NONBLOCK)
-				return -EAGAIN;
+		ret = wait_event_interruptible(rb->pollq,
+			iio_buffer_ready(indio_dev, rb, to_wait, to_read));
+		if (ret)
+			return ret;
 
-			ret = wait_event_interruptible(rb->pollq,
-					iio_buffer_data_available(rb) ||
-					indio_dev->info == NULL);
-			if (ret)
-				return ret;
-			if (indio_dev->info == NULL)
-				return -ENODEV;
-		}
+		if (!indio_dev->info)
+			return -ENODEV;
 
 		ret = rb->access->read_first_n(rb, n, buf);
 		if (ret == 0 && (filp->f_flags & O_NONBLOCK))
@@ -96,9 +154,8 @@ unsigned int iio_buffer_poll(struct file *filp,
 		return -ENODEV;
 
 	poll_wait(filp, &rb->pollq, wait);
-	if (iio_buffer_data_available(rb))
+	if (iio_buffer_ready(indio_dev, rb, rb->watermark, 0))
 		return POLLIN | POLLRDNORM;
-	/* need a way of knowing if there may be enough data... */
 	return 0;
 }
 
@@ -123,6 +180,7 @@ void iio_buffer_init(struct iio_buffer *buffer)
 	INIT_LIST_HEAD(&buffer->buffer_list);
 	init_waitqueue_head(&buffer->pollq);
 	kref_init(&buffer->ref);
+	buffer->watermark = 1;
 }
 EXPORT_SYMBOL(iio_buffer_init);
 
@@ -416,6 +474,11 @@ static ssize_t iio_buffer_write_length(struct device *dev,
 		buffer->access->set_length(buffer, val);
 		ret = 0;
 	}
+	if (ret)
+		goto out;
+	if (buffer->length && buffer->length < buffer->watermark)
+		buffer->watermark = buffer->length;
+out:
 	mutex_unlock(&indio_dev->mlock);
 
 	return ret ? ret : len;
@@ -472,6 +535,7 @@ static void iio_buffer_activate(struct iio_dev *indio_dev,
 static void iio_buffer_deactivate(struct iio_buffer *buffer)
 {
 	list_del_init(&buffer->buffer_list);
+	wake_up_interruptible(&buffer->pollq);
 	iio_buffer_put(buffer);
 }
 
@@ -629,19 +693,16 @@ static int __iio_update_buffers(struct iio_dev *indio_dev,
 		}
 	}
 	/* Definitely possible for devices to support both of these. */
-	if (indio_dev->modes & INDIO_BUFFER_TRIGGERED) {
-		if (!indio_dev->trig) {
-			printk(KERN_INFO "Buffer not started: no trigger\n");
-			ret = -EINVAL;
-			/* Can only occur on first buffer */
-			goto error_run_postdisable;
-		}
+	if ((indio_dev->modes & INDIO_BUFFER_TRIGGERED) && indio_dev->trig) {
 		indio_dev->currentmode = INDIO_BUFFER_TRIGGERED;
 	} else if (indio_dev->modes & INDIO_BUFFER_HARDWARE) {
 		indio_dev->currentmode = INDIO_BUFFER_HARDWARE;
 	} else if (indio_dev->modes & INDIO_BUFFER_SOFTWARE) {
 		indio_dev->currentmode = INDIO_BUFFER_SOFTWARE;
 	} else { /* Should never be reached */
+		/* Can only occur on first buffer */
+		if (indio_dev->modes & INDIO_BUFFER_TRIGGERED)
+			pr_info("Buffer not started: no trigger\n");
 		ret = -EINVAL;
 		goto error_run_postdisable;
 	}
@@ -754,12 +815,68 @@ done:
 
 static const char * const iio_scan_elements_group_name = "scan_elements";
 
+static ssize_t iio_buffer_show_watermark(struct device *dev,
+					 struct device_attribute *attr,
+					 char *buf)
+{
+	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
+	struct iio_buffer *buffer = indio_dev->buffer;
+
+	return sprintf(buf, "%u\n", buffer->watermark);
+}
+
+static ssize_t iio_buffer_store_watermark(struct device *dev,
+					  struct device_attribute *attr,
+					  const char *buf,
+					  size_t len)
+{
+	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
+	struct iio_buffer *buffer = indio_dev->buffer;
+	unsigned int val;
+	int ret;
+
+	ret = kstrtouint(buf, 10, &val);
+	if (ret)
+		return ret;
+	if (!val)
+		return -EINVAL;
+
+	mutex_lock(&indio_dev->mlock);
+
+	if (val > buffer->length) {
+		ret = -EINVAL;
+		goto out;
+	}
+
+	if (iio_buffer_is_active(indio_dev->buffer)) {
+		ret = -EBUSY;
+		goto out;
+	}
+
+	buffer->watermark = val;
+
+	if (indio_dev->info->hwfifo_set_watermark)
+		indio_dev->info->hwfifo_set_watermark(indio_dev, val);
+out:
+	mutex_unlock(&indio_dev->mlock);
+
+	return ret ? ret : len;
+}
+
 static DEVICE_ATTR(length, S_IRUGO | S_IWUSR, iio_buffer_read_length,
 		   iio_buffer_write_length);
 static struct device_attribute dev_attr_length_ro = __ATTR(length,
 	S_IRUGO, iio_buffer_read_length, NULL);
 static DEVICE_ATTR(enable, S_IRUGO | S_IWUSR,
 		   iio_buffer_show_enable, iio_buffer_store_enable);
+static DEVICE_ATTR(watermark, S_IRUGO | S_IWUSR,
+		   iio_buffer_show_watermark, iio_buffer_store_watermark);
+
+static struct attribute *iio_buffer_attrs[] = {
+	&dev_attr_length.attr,
+	&dev_attr_enable.attr,
+	&dev_attr_watermark.attr,
+};
 
 int iio_buffer_alloc_sysfs_and_mask(struct iio_dev *indio_dev)
 {
@@ -778,21 +895,23 @@ int iio_buffer_alloc_sysfs_and_mask(struct iio_dev *indio_dev)
 			attrcount++;
 	}
 
-	buffer->buffer_group.name = "buffer";
-	buffer->buffer_group.attrs = kcalloc(attrcount + 3,
-			sizeof(*buffer->buffer_group.attrs), GFP_KERNEL);
-	if (!buffer->buffer_group.attrs)
+	attr = kcalloc(attrcount + ARRAY_SIZE(iio_buffer_attrs) + 1,
+		       sizeof(struct attribute *), GFP_KERNEL);
+	if (!attr)
 		return -ENOMEM;
 
-	if (buffer->access->set_length)
-		buffer->buffer_group.attrs[0] = &dev_attr_length.attr;
-	else
-		buffer->buffer_group.attrs[0] = &dev_attr_length_ro.attr;
-	buffer->buffer_group.attrs[1] = &dev_attr_enable.attr;
+	memcpy(attr, iio_buffer_attrs, sizeof(iio_buffer_attrs));
+	if (!buffer->access->set_length)
+		attr[0] = &dev_attr_length_ro.attr;
+
 	if (buffer->attrs)
-		memcpy(&buffer->buffer_group.attrs[2], buffer->attrs,
-			sizeof(*&buffer->buffer_group.attrs) * attrcount);
-	buffer->buffer_group.attrs[attrcount+2] = NULL;
+		memcpy(&attr[ARRAY_SIZE(iio_buffer_attrs)], buffer->attrs,
+		       sizeof(struct attribute *) * attrcount);
+
+	attr[attrcount + ARRAY_SIZE(iio_buffer_attrs)] = NULL;
+
+	buffer->buffer_group.name = "buffer";
+	buffer->buffer_group.attrs = attr;
 
 	indio_dev->groups[indio_dev->groupcounter++] = &buffer->buffer_group;
 
@@ -937,8 +1056,18 @@ static const void *iio_demux(struct iio_buffer *buffer,
 static int iio_push_to_buffer(struct iio_buffer *buffer, const void *data)
 {
 	const void *dataout = iio_demux(buffer, data);
+	int ret;
 
-	return buffer->access->store_to(buffer, dataout);
+	ret = buffer->access->store_to(buffer, dataout);
+	if (ret)
+		return ret;
+
+	/*
+	 * We can't just test for watermark to decide if we wake the poll queue
+	 * because read may request less samples than the watermark.
+	 */
+	wake_up_interruptible_poll(&buffer->pollq, POLLIN | POLLRDNORM);
+	return 0;
 }
 
 static void iio_buffer_demux_free(struct iio_buffer *buffer)
diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c
index aaba9d3..4df97f6 100644
--- a/drivers/iio/industrialio-core.c
+++ b/drivers/iio/industrialio-core.c
@@ -847,8 +847,7 @@ static int iio_device_add_channel_sysfs(struct iio_dev *indio_dev,
  * @attr_list: List of IIO device attributes
  *
  * This function frees the memory allocated for each of the IIO device
- * attributes in the list. Note: if you want to reuse the list after calling
- * this function you have to reinitialize it using INIT_LIST_HEAD().
+ * attributes in the list.
  */
 void iio_free_chan_devattr_list(struct list_head *attr_list)
 {
@@ -856,6 +855,7 @@ void iio_free_chan_devattr_list(struct list_head *attr_list)
 
 	list_for_each_entry_safe(p, n, attr_list, l) {
 		kfree(p->dev_attr.attr.name);
+		list_del(&p->l);
 		kfree(p);
 	}
 }
@@ -936,6 +936,7 @@ static void iio_device_unregister_sysfs(struct iio_dev *indio_dev)
 
 	iio_free_chan_devattr_list(&indio_dev->channel_attr_list);
 	kfree(indio_dev->chan_attr_group.attrs);
+	indio_dev->chan_attr_group.attrs = NULL;
 }
 
 static void iio_dev_release(struct device *device)
diff --git a/drivers/iio/industrialio-event.c b/drivers/iio/industrialio-event.c
index a4b3970..a99692b 100644
--- a/drivers/iio/industrialio-event.c
+++ b/drivers/iio/industrialio-event.c
@@ -500,6 +500,7 @@ int iio_device_register_eventset(struct iio_dev *indio_dev)
 error_free_setup_event_lines:
 	iio_free_chan_devattr_list(&indio_dev->event_interface->dev_attr_list);
 	kfree(indio_dev->event_interface);
+	indio_dev->event_interface = NULL;
 	return ret;
 }
 
diff --git a/drivers/iio/kfifo_buf.c b/drivers/iio/kfifo_buf.c
index b2beea0..847ca56 100644
--- a/drivers/iio/kfifo_buf.c
+++ b/drivers/iio/kfifo_buf.c
@@ -83,9 +83,6 @@ static int iio_store_to_kfifo(struct iio_buffer *r,
 	ret = kfifo_in(&kf->kf, data, 1);
 	if (ret != 1)
 		return -EBUSY;
-
-	wake_up_interruptible_poll(&r->pollq, POLLIN | POLLRDNORM);
-
 	return 0;
 }
 
@@ -109,16 +106,16 @@ static int iio_read_first_n_kfifo(struct iio_buffer *r,
 	return copied;
 }
 
-static bool iio_kfifo_buf_data_available(struct iio_buffer *r)
+static size_t iio_kfifo_buf_data_available(struct iio_buffer *r)
 {
 	struct iio_kfifo *kf = iio_to_kfifo(r);
-	bool empty;
+	size_t samples;
 
 	mutex_lock(&kf->user_lock);
-	empty = kfifo_is_empty(&kf->kf);
+	samples = kfifo_len(&kf->kf);
 	mutex_unlock(&kf->user_lock);
 
-	return !empty;
+	return samples;
 }
 
 static void iio_kfifo_buffer_release(struct iio_buffer *buffer)
diff --git a/drivers/iio/light/Kconfig b/drivers/iio/light/Kconfig
index ae68c64..01a1a16 100644
--- a/drivers/iio/light/Kconfig
+++ b/drivers/iio/light/Kconfig
@@ -59,6 +59,16 @@ config CM3232
 	 To compile this driver as a module, choose M here:
 	 the module will be called cm3232.
 
+config CM3323
+	depends on I2C
+	tristate "Capella CM3323 color light sensor"
+	help
+	 Say Y here if you want to build a driver for Capela CM3323
+	 color sensor.
+
+	 To compile this driver as a module, choose M here: the module will
+	 be called cm3323.
+
 config CM36651
 	depends on I2C
 	tristate "CM36651 driver"
@@ -73,6 +83,7 @@ config CM36651
 config GP2AP020A00F
 	tristate "Sharp GP2AP020A00F Proximity/ALS sensor"
 	depends on I2C
+	select REGMAP_I2C
 	select IIO_BUFFER
 	select IIO_TRIGGERED_BUFFER
 	select IRQ_WORK
@@ -126,6 +137,7 @@ config HID_SENSOR_PROX
 config JSA1212
 	tristate "JSA1212 ALS and proximity sensor driver"
 	depends on I2C
+	select REGMAP_I2C
 	help
 	 Say Y here if you want to build a IIO driver for JSA1212
 	 proximity & ALS sensor device.
diff --git a/drivers/iio/light/Makefile b/drivers/iio/light/Makefile
index b12a516..ad7c30f 100644
--- a/drivers/iio/light/Makefile
+++ b/drivers/iio/light/Makefile
@@ -8,6 +8,7 @@ obj-$(CONFIG_AL3320A)		+= al3320a.o
 obj-$(CONFIG_APDS9300)		+= apds9300.o
 obj-$(CONFIG_CM32181)		+= cm32181.o
 obj-$(CONFIG_CM3232)		+= cm3232.o
+obj-$(CONFIG_CM3323)		+= cm3323.o
 obj-$(CONFIG_CM36651)		+= cm36651.o
 obj-$(CONFIG_GP2AP020A00F)	+= gp2ap020a00f.o
 obj-$(CONFIG_HID_SENSOR_ALS)	+= hid-sensor-als.o
diff --git a/drivers/iio/light/cm3232.c b/drivers/iio/light/cm3232.c
index 90e3519..39c8d99 100644
--- a/drivers/iio/light/cm3232.c
+++ b/drivers/iio/light/cm3232.c
@@ -378,6 +378,39 @@ static const struct i2c_device_id cm3232_id[] = {
 	{}
 };
 
+#ifdef CONFIG_PM_SLEEP
+static int cm3232_suspend(struct device *dev)
+{
+	struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev));
+	struct cm3232_chip *chip = iio_priv(indio_dev);
+	struct i2c_client *client = chip->client;
+	int ret;
+
+	chip->regs_cmd |= CM3232_CMD_ALS_DISABLE;
+	ret = i2c_smbus_write_byte_data(client, CM3232_REG_ADDR_CMD,
+					chip->regs_cmd);
+
+	return ret;
+}
+
+static int cm3232_resume(struct device *dev)
+{
+	struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev));
+	struct cm3232_chip *chip = iio_priv(indio_dev);
+	struct i2c_client *client = chip->client;
+	int ret;
+
+	chip->regs_cmd &= ~CM3232_CMD_ALS_DISABLE;
+	ret = i2c_smbus_write_byte_data(client, CM3232_REG_ADDR_CMD,
+					chip->regs_cmd | CM3232_CMD_ALS_RESET);
+
+	return ret;
+}
+
+static const struct dev_pm_ops cm3232_pm_ops = {
+	SET_SYSTEM_SLEEP_PM_OPS(cm3232_suspend, cm3232_resume)};
+#endif
+
 MODULE_DEVICE_TABLE(i2c, cm3232_id);
 
 static const struct of_device_id cm3232_of_match[] = {
@@ -390,6 +423,9 @@ static struct i2c_driver cm3232_driver = {
 		.name	= "cm3232",
 		.owner	= THIS_MODULE,
 		.of_match_table = of_match_ptr(cm3232_of_match),
+#ifdef CONFIG_PM_SLEEP
+		.pm	= &cm3232_pm_ops,
+#endif
 	},
 	.id_table	= cm3232_id,
 	.probe		= cm3232_probe,
diff --git a/drivers/iio/light/cm3323.c b/drivers/iio/light/cm3323.c
new file mode 100644
index 0000000..869033e
--- /dev/null
+++ b/drivers/iio/light/cm3323.c
@@ -0,0 +1,286 @@
+/*
+ * CM3323 - Capella Color Light Sensor
+ *
+ * Copyright (c) 2015, Intel Corporation.
+ *
+ * This file is subject to the terms and conditions of version 2 of
+ * the GNU General Public License.  See the file COPYING in the main
+ * directory of this archive for more details.
+ *
+ * IIO driver for CM3323 (7-bit I2C slave address 0x10)
+ *
+ * TODO: calibscale to correct the lens factor
+ */
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/i2c.h>
+#include <linux/mutex.h>
+
+#include <linux/iio/iio.h>
+#include <linux/iio/sysfs.h>
+
+#define CM3323_DRV_NAME "cm3323"
+
+#define CM3323_CMD_CONF		0x00
+#define CM3323_CMD_RED_DATA	0x08
+#define CM3323_CMD_GREEN_DATA	0x09
+#define CM3323_CMD_BLUE_DATA	0x0A
+#define CM3323_CMD_CLEAR_DATA	0x0B
+
+#define CM3323_CONF_SD_BIT	BIT(0) /* sensor disable */
+#define CM3323_CONF_AF_BIT	BIT(1) /* auto/manual force mode */
+#define CM3323_CONF_IT_MASK	(BIT(4) | BIT(5) | BIT(6))
+#define CM3323_CONF_IT_SHIFT	4
+
+#define CM3323_INT_TIME_AVAILABLE "0.04 0.08 0.16 0.32 0.64 1.28"
+
+static const struct {
+	int val;
+	int val2;
+} cm3323_int_time[] = {
+	{0, 40000},  /* 40 ms */
+	{0, 80000},  /* 80 ms */
+	{0, 160000}, /* 160 ms */
+	{0, 320000}, /* 320 ms */
+	{0, 640000}, /* 640 ms */
+	{1, 280000}, /* 1280 ms */
+};
+
+struct cm3323_data {
+	struct i2c_client *client;
+	u16 reg_conf;
+	struct mutex mutex;
+};
+
+#define CM3323_COLOR_CHANNEL(_color, _addr) { \
+	.type = IIO_INTENSITY, \
+	.modified = 1, \
+	.info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \
+	.info_mask_shared_by_all = BIT(IIO_CHAN_INFO_INT_TIME), \
+	.channel2 = IIO_MOD_LIGHT_##_color, \
+	.address = _addr, \
+}
+
+static const struct iio_chan_spec cm3323_channels[] = {
+	CM3323_COLOR_CHANNEL(RED, CM3323_CMD_RED_DATA),
+	CM3323_COLOR_CHANNEL(GREEN, CM3323_CMD_GREEN_DATA),
+	CM3323_COLOR_CHANNEL(BLUE, CM3323_CMD_BLUE_DATA),
+	CM3323_COLOR_CHANNEL(CLEAR, CM3323_CMD_CLEAR_DATA),
+};
+
+static IIO_CONST_ATTR_INT_TIME_AVAIL(CM3323_INT_TIME_AVAILABLE);
+
+static struct attribute *cm3323_attributes[] = {
+	&iio_const_attr_integration_time_available.dev_attr.attr,
+	NULL
+};
+
+static const struct attribute_group cm3323_attribute_group = {
+	.attrs = cm3323_attributes,
+};
+
+static int cm3323_init(struct iio_dev *indio_dev)
+{
+	int ret;
+	struct cm3323_data *data = iio_priv(indio_dev);
+
+	ret = i2c_smbus_read_word_data(data->client, CM3323_CMD_CONF);
+	if (ret < 0) {
+		dev_err(&data->client->dev, "Error reading reg_conf\n");
+		return ret;
+	}
+
+	/* enable sensor and set auto force mode */
+	ret &= ~(CM3323_CONF_SD_BIT | CM3323_CONF_AF_BIT);
+
+	ret = i2c_smbus_write_word_data(data->client, CM3323_CMD_CONF, ret);
+	if (ret < 0) {
+		dev_err(&data->client->dev, "Error writing reg_conf\n");
+		return ret;
+	}
+
+	data->reg_conf = ret;
+
+	return 0;
+}
+
+static void cm3323_disable(struct iio_dev *indio_dev)
+{
+	int ret;
+	struct cm3323_data *data = iio_priv(indio_dev);
+
+	ret = i2c_smbus_write_word_data(data->client, CM3323_CMD_CONF,
+					CM3323_CONF_SD_BIT);
+	if (ret < 0)
+		dev_err(&data->client->dev, "Error writing reg_conf\n");
+}
+
+static int cm3323_set_it_bits(struct cm3323_data *data, int val, int val2)
+{
+	int i, ret;
+	u16 reg_conf;
+
+	for (i = 0; i < ARRAY_SIZE(cm3323_int_time); i++) {
+		if (val == cm3323_int_time[i].val &&
+		    val2 == cm3323_int_time[i].val2) {
+			reg_conf = data->reg_conf;
+			reg_conf |= i << CM3323_CONF_IT_SHIFT;
+
+			ret = i2c_smbus_write_word_data(data->client,
+							CM3323_CMD_CONF,
+							reg_conf);
+			if (ret < 0)
+				return ret;
+
+			data->reg_conf = reg_conf;
+			return 0;
+		}
+	}
+	return -EINVAL;
+}
+
+static int cm3323_get_it_bits(struct cm3323_data *data)
+{
+	int bits;
+
+	bits = (data->reg_conf & CM3323_CONF_IT_MASK) >>
+		CM3323_CONF_IT_SHIFT;
+
+	if (bits >= ARRAY_SIZE(cm3323_int_time))
+		return -EINVAL;
+	return bits;
+}
+
+static int cm3323_read_raw(struct iio_dev *indio_dev,
+			   struct iio_chan_spec const *chan, int *val,
+			   int *val2, long mask)
+{
+	int i, ret;
+	struct cm3323_data *data = iio_priv(indio_dev);
+
+	switch (mask) {
+	case IIO_CHAN_INFO_RAW:
+		mutex_lock(&data->mutex);
+		ret = i2c_smbus_read_word_data(data->client, chan->address);
+		if (ret < 0) {
+			mutex_unlock(&data->mutex);
+			return ret;
+		}
+		*val = ret;
+		mutex_unlock(&data->mutex);
+
+		return IIO_VAL_INT;
+	case IIO_CHAN_INFO_INT_TIME:
+		mutex_lock(&data->mutex);
+		i = cm3323_get_it_bits(data);
+		if (i < 0) {
+			mutex_unlock(&data->mutex);
+			return -EINVAL;
+		}
+
+		*val = cm3323_int_time[i].val;
+		*val2 = cm3323_int_time[i].val2;
+		mutex_unlock(&data->mutex);
+
+		return IIO_VAL_INT_PLUS_MICRO;
+	default:
+		return -EINVAL;
+	}
+}
+
+static int cm3323_write_raw(struct iio_dev *indio_dev,
+			    struct iio_chan_spec const *chan, int val,
+			    int val2, long mask)
+{
+	struct cm3323_data *data = iio_priv(indio_dev);
+	int ret;
+
+	switch (mask) {
+	case IIO_CHAN_INFO_INT_TIME:
+		mutex_lock(&data->mutex);
+		ret = cm3323_set_it_bits(data, val, val2);
+		mutex_unlock(&data->mutex);
+
+		return ret;
+	default:
+		return -EINVAL;
+	}
+}
+
+static const struct iio_info cm3323_info = {
+	.driver_module	= THIS_MODULE,
+	.read_raw	= cm3323_read_raw,
+	.write_raw	= cm3323_write_raw,
+	.attrs		= &cm3323_attribute_group,
+};
+
+static int cm3323_probe(struct i2c_client *client,
+			const struct i2c_device_id *id)
+{
+	struct cm3323_data *data;
+	struct iio_dev *indio_dev;
+	int ret;
+
+	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data));
+	if (!indio_dev)
+		return -ENOMEM;
+
+	data = iio_priv(indio_dev);
+	i2c_set_clientdata(client, indio_dev);
+	data->client = client;
+
+	mutex_init(&data->mutex);
+
+	indio_dev->dev.parent = &client->dev;
+	indio_dev->info = &cm3323_info;
+	indio_dev->name = CM3323_DRV_NAME;
+	indio_dev->channels = cm3323_channels;
+	indio_dev->num_channels = ARRAY_SIZE(cm3323_channels);
+	indio_dev->modes = INDIO_DIRECT_MODE;
+
+	ret = cm3323_init(indio_dev);
+	if (ret < 0) {
+		dev_err(&client->dev, "cm3323 chip init failed\n");
+		return ret;
+	}
+	ret = iio_device_register(indio_dev);
+	if (ret < 0) {
+		dev_err(&client->dev, "failed to register iio dev\n");
+		goto err_init;
+	}
+	return 0;
+err_init:
+	cm3323_disable(indio_dev);
+	return ret;
+}
+
+static int cm3323_remove(struct i2c_client *client)
+{
+	struct iio_dev *indio_dev = i2c_get_clientdata(client);
+
+	iio_device_unregister(indio_dev);
+	cm3323_disable(indio_dev);
+
+	return 0;
+}
+
+static const struct i2c_device_id cm3323_id[] = {
+	{"cm3323", 0},
+	{}
+};
+MODULE_DEVICE_TABLE(i2c, cm3323_id);
+
+static struct i2c_driver cm3323_driver = {
+	.driver = {
+		.name = CM3323_DRV_NAME,
+	},
+	.probe		= cm3323_probe,
+	.remove		= cm3323_remove,
+	.id_table	= cm3323_id,
+};
+
+module_i2c_driver(cm3323_driver);
+
+MODULE_AUTHOR("Daniel Baluta <daniel.baluta@intel.com>");
+MODULE_DESCRIPTION("Capella CM3323 Color Light Sensor driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/iio/light/gp2ap020a00f.c b/drivers/iio/light/gp2ap020a00f.c
index 221ed16..32b6449 100644
--- a/drivers/iio/light/gp2ap020a00f.c
+++ b/drivers/iio/light/gp2ap020a00f.c
@@ -46,6 +46,7 @@
 #include <linux/regmap.h>
 #include <linux/regulator/consumer.h>
 #include <linux/slab.h>
+#include <asm/unaligned.h>
 #include <linux/iio/buffer.h>
 #include <linux/iio/events.h>
 #include <linux/iio/iio.h>
@@ -966,7 +967,6 @@ static irqreturn_t gp2ap020a00f_trigger_handler(int irq, void *data)
 	struct iio_dev *indio_dev = pf->indio_dev;
 	struct gp2ap020a00f_data *priv = iio_priv(indio_dev);
 	size_t d_size = 0;
-	__le32 light_lux;
 	int i, out_val, ret;
 
 	for_each_set_bit(i, indio_dev->active_scan_mask,
@@ -981,8 +981,8 @@ static irqreturn_t gp2ap020a00f_trigger_handler(int irq, void *data)
 		    i == GP2AP020A00F_SCAN_MODE_LIGHT_IR) {
 			out_val = le16_to_cpup((__le16 *)&priv->buffer[d_size]);
 			gp2ap020a00f_output_to_lux(priv, &out_val);
-			light_lux = cpu_to_le32(out_val);
-			memcpy(&priv->buffer[d_size], (u8 *)&light_lux, 4);
+
+			put_unaligned_le32(out_val, &priv->buffer[d_size]);
 			d_size += 4;
 		} else {
 			d_size += 2;
diff --git a/drivers/iio/light/jsa1212.c b/drivers/iio/light/jsa1212.c
index 29de7e7..3a3af89 100644
--- a/drivers/iio/light/jsa1212.c
+++ b/drivers/iio/light/jsa1212.c
@@ -308,7 +308,7 @@ static bool jsa1212_is_volatile_reg(struct device *dev, unsigned int reg)
 	}
 }
 
-static struct regmap_config jsa1212_regmap_config = {
+static const struct regmap_config jsa1212_regmap_config = {
 	.name =  JSA1212_REGMAP_NAME,
 	.reg_bits = 8,
 	.val_bits = 8,
diff --git a/drivers/iio/light/ltr501.c b/drivers/iio/light/ltr501.c
index 62b7072..78b8783 100644
--- a/drivers/iio/light/ltr501.c
+++ b/drivers/iio/light/ltr501.c
@@ -333,6 +333,13 @@ static int ltr501_init(struct ltr501_data *data)
 		data->ps_contr);
 }
 
+static int ltr501_powerdown(struct ltr501_data *data)
+{
+	return ltr501_write_contr(data->client,
+				  data->als_contr & ~LTR501_CONTR_ACTIVE,
+				  data->ps_contr & ~LTR501_CONTR_ACTIVE);
+}
+
 static int ltr501_probe(struct i2c_client *client,
 			  const struct i2c_device_id *id)
 {
@@ -370,7 +377,7 @@ static int ltr501_probe(struct i2c_client *client,
 	ret = iio_triggered_buffer_setup(indio_dev, NULL,
 		ltr501_trigger_handler, NULL);
 	if (ret)
-		return ret;
+		goto powerdown_on_error;
 
 	ret = iio_device_register(indio_dev);
 	if (ret)
@@ -380,16 +387,11 @@ static int ltr501_probe(struct i2c_client *client,
 
 error_unreg_buffer:
 	iio_triggered_buffer_cleanup(indio_dev);
+powerdown_on_error:
+	ltr501_powerdown(data);
 	return ret;
 }
 
-static int ltr501_powerdown(struct ltr501_data *data)
-{
-	return ltr501_write_contr(data->client,
-		data->als_contr & ~LTR501_CONTR_ACTIVE,
-		data->ps_contr & ~LTR501_CONTR_ACTIVE);
-}
-
 static int ltr501_remove(struct i2c_client *client)
 {
 	struct iio_dev *indio_dev = i2c_get_clientdata(client);
diff --git a/drivers/iio/magnetometer/Kconfig b/drivers/iio/magnetometer/Kconfig
index 4c7a4c5..a5d6de7 100644
--- a/drivers/iio/magnetometer/Kconfig
+++ b/drivers/iio/magnetometer/Kconfig
@@ -18,6 +18,8 @@ config AK8975
 
 config AK09911
 	tristate "Asahi Kasei AK09911 3-axis Compass"
+	depends on I2C
+	depends on GPIOLIB
 	select AK8975
 	help
 	  Deprecated: AK09911 is now supported by AK8975 driver.
diff --git a/drivers/iio/magnetometer/mag3110.c b/drivers/iio/magnetometer/mag3110.c
index e3106b4..261d517 100644
--- a/drivers/iio/magnetometer/mag3110.c
+++ b/drivers/iio/magnetometer/mag3110.c
@@ -321,6 +321,12 @@ static const struct iio_info mag3110_info = {
 
 static const unsigned long mag3110_scan_masks[] = {0x7, 0xf, 0};
 
+static int mag3110_standby(struct mag3110_data *data)
+{
+	return i2c_smbus_write_byte_data(data->client, MAG3110_CTRL_REG1,
+		data->ctrl_reg1 & ~MAG3110_CTRL_AC);
+}
+
 static int mag3110_probe(struct i2c_client *client,
 			 const struct i2c_device_id *id)
 {
@@ -360,12 +366,12 @@ static int mag3110_probe(struct i2c_client *client,
 	ret = i2c_smbus_write_byte_data(client, MAG3110_CTRL_REG2,
 		MAG3110_CTRL_AUTO_MRST_EN);
 	if (ret < 0)
-		return ret;
+		goto standby_on_error;
 
 	ret = iio_triggered_buffer_setup(indio_dev, NULL,
 		mag3110_trigger_handler, NULL);
 	if (ret < 0)
-		return ret;
+		goto standby_on_error;
 
 	ret = iio_device_register(indio_dev);
 	if (ret < 0)
@@ -374,15 +380,11 @@ static int mag3110_probe(struct i2c_client *client,
 
 buffer_cleanup:
 	iio_triggered_buffer_cleanup(indio_dev);
+standby_on_error:
+	mag3110_standby(iio_priv(indio_dev));
 	return ret;
 }
 
-static int mag3110_standby(struct mag3110_data *data)
-{
-	return i2c_smbus_write_byte_data(data->client, MAG3110_CTRL_REG1,
-		data->ctrl_reg1 & ~MAG3110_CTRL_AC);
-}
-
 static int mag3110_remove(struct i2c_client *client)
 {
 	struct iio_dev *indio_dev = i2c_get_clientdata(client);
diff --git a/drivers/iio/pressure/Kconfig b/drivers/iio/pressure/Kconfig
index a3be537..fa62950 100644
--- a/drivers/iio/pressure/Kconfig
+++ b/drivers/iio/pressure/Kconfig
@@ -52,6 +52,33 @@ config MPL3115
           To compile this driver as a module, choose M here: the module
           will be called mpl3115.
 
+config MS5611
+	tristate "Measurement Specialities MS5611 pressure sensor driver"
+	help
+	  Say Y here to build support for the Measurement Specialities
+	  MS5611 pressure and temperature sensor.
+
+	  To compile this driver as a module, choose M here: the module will
+	  be called ms5611_core.
+
+config MS5611_I2C
+	tristate "support I2C bus connection"
+	depends on I2C && MS5611
+	help
+	  Say Y here to build I2C bus support for MS5611.
+
+	  To compile this driver as a module, choose M here: the module will
+	  be called ms5611_i2c.
+
+config MS5611_SPI
+	tristate "support SPI bus connection"
+	depends on SPI_MASTER && MS5611
+	help
+	  Say Y here to build SPI bus support for MS5611.
+
+	  To compile this driver as a module, choose M here: the module will
+	  be called ms5611_spi.
+
 config IIO_ST_PRESS
 	tristate "STMicroelectronics pressure sensor Driver"
 	depends on (I2C || SPI_MASTER) && SYSFS
diff --git a/drivers/iio/pressure/Makefile b/drivers/iio/pressure/Makefile
index 88011f2..a4f98f8 100644
--- a/drivers/iio/pressure/Makefile
+++ b/drivers/iio/pressure/Makefile
@@ -7,6 +7,9 @@ obj-$(CONFIG_BMP280) += bmp280.o
 obj-$(CONFIG_HID_SENSOR_PRESS)   += hid-sensor-press.o
 obj-$(CONFIG_MPL115) += mpl115.o
 obj-$(CONFIG_MPL3115) += mpl3115.o
+obj-$(CONFIG_MS5611) += ms5611_core.o
+obj-$(CONFIG_MS5611_I2C) += ms5611_i2c.o
+obj-$(CONFIG_MS5611_SPI) += ms5611_spi.o
 obj-$(CONFIG_IIO_ST_PRESS) += st_pressure.o
 st_pressure-y := st_pressure_core.o
 st_pressure-$(CONFIG_IIO_BUFFER) += st_pressure_buffer.o
diff --git a/drivers/iio/pressure/ms5611.h b/drivers/iio/pressure/ms5611.h
new file mode 100644
index 0000000..099c6cd
--- /dev/null
+++ b/drivers/iio/pressure/ms5611.h
@@ -0,0 +1,44 @@
+/*
+ * MS5611 pressure and temperature sensor driver
+ *
+ * Copyright (c) Tomasz Duszynski <tduszyns@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#ifndef _MS5611_H
+#define _MS5611_H
+
+#include <linux/device.h>
+#include <linux/iio/iio.h>
+#include <linux/mutex.h>
+
+#define MS5611_RESET			0x1e
+#define MS5611_READ_ADC			0x00
+#define MS5611_READ_PROM_WORD		0xA0
+#define MS5611_START_TEMP_CONV		0x58
+#define MS5611_START_PRESSURE_CONV	0x48
+
+#define MS5611_CONV_TIME_MIN		9040
+#define MS5611_CONV_TIME_MAX		10000
+
+#define MS5611_PROM_WORDS_NB		8
+
+struct ms5611_state {
+	void *client;
+	struct mutex lock;
+
+	int (*reset)(struct device *dev);
+	int (*read_prom_word)(struct device *dev, int index, u16 *word);
+	int (*read_adc_temp_and_pressure)(struct device *dev,
+					  s32 *temp, s32 *pressure);
+
+	u16 prom[MS5611_PROM_WORDS_NB];
+};
+
+int ms5611_probe(struct iio_dev *indio_dev, struct device *dev);
+
+#endif /* _MS5611_H */
diff --git a/drivers/iio/pressure/ms5611_core.c b/drivers/iio/pressure/ms5611_core.c
new file mode 100644
index 0000000..e42c853
--- /dev/null
+++ b/drivers/iio/pressure/ms5611_core.c
@@ -0,0 +1,215 @@
+/*
+ * MS5611 pressure and temperature sensor driver
+ *
+ * Copyright (c) Tomasz Duszynski <tduszyns@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Data sheet:
+ *  http://www.meas-spec.com/downloads/MS5611-01BA03.pdf
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/iio/iio.h>
+#include <linux/delay.h>
+
+#include "ms5611.h"
+
+static bool ms5611_prom_is_valid(u16 *prom, size_t len)
+{
+	int i, j;
+	uint16_t crc = 0, crc_orig = prom[7] & 0x000F;
+
+	prom[7] &= 0xFF00;
+
+	for (i = 0; i < len * 2; i++) {
+		if (i % 2 == 1)
+			crc ^= prom[i >> 1] & 0x00FF;
+		else
+			crc ^= prom[i >> 1] >> 8;
+
+		for (j = 0; j < 8; j++) {
+			if (crc & 0x8000)
+				crc = (crc << 1) ^ 0x3000;
+			else
+				crc <<= 1;
+		}
+	}
+
+	crc = (crc >> 12) & 0x000F;
+
+	return crc_orig != 0x0000 && crc == crc_orig;
+}
+
+static int ms5611_read_prom(struct iio_dev *indio_dev)
+{
+	int ret, i;
+	struct ms5611_state *st = iio_priv(indio_dev);
+
+	for (i = 0; i < MS5611_PROM_WORDS_NB; i++) {
+		ret = st->read_prom_word(&indio_dev->dev, i, &st->prom[i]);
+		if (ret < 0) {
+			dev_err(&indio_dev->dev,
+				"failed to read prom at %d\n", i);
+			return ret;
+		}
+	}
+
+	if (!ms5611_prom_is_valid(st->prom, MS5611_PROM_WORDS_NB)) {
+		dev_err(&indio_dev->dev, "PROM integrity check failed\n");
+		return -ENODEV;
+	}
+
+	return 0;
+}
+
+static int ms5611_read_temp_and_pressure(struct iio_dev *indio_dev,
+					 s32 *temp, s32 *pressure)
+{
+	int ret;
+	s32 t, p;
+	s64 off, sens, dt;
+	struct ms5611_state *st = iio_priv(indio_dev);
+
+	ret = st->read_adc_temp_and_pressure(&indio_dev->dev, &t, &p);
+	if (ret < 0) {
+		dev_err(&indio_dev->dev,
+			"failed to read temperature and pressure\n");
+		return ret;
+	}
+
+	dt = t - (st->prom[5] << 8);
+	off = ((s64)st->prom[2] << 16) + ((st->prom[4] * dt) >> 7);
+	sens = ((s64)st->prom[1] << 15) + ((st->prom[3] * dt) >> 8);
+
+	t = 2000 + ((st->prom[6] * dt) >> 23);
+	if (t < 2000) {
+		s64 off2, sens2, t2;
+
+		t2 = (dt * dt) >> 31;
+		off2 = (5 * (t - 2000) * (t - 2000)) >> 1;
+		sens2 = off2 >> 1;
+
+		if (t < -1500) {
+			s64 tmp = (t + 1500) * (t + 1500);
+
+			off2 += 7 * tmp;
+			sens2 += (11 * tmp) >> 1;
+		}
+
+		t -= t2;
+		off -= off2;
+		sens -= sens2;
+	}
+
+	*temp = t;
+	*pressure = (((p * sens) >> 21) - off) >> 15;
+
+	return 0;
+}
+
+static int ms5611_reset(struct iio_dev *indio_dev)
+{
+	int ret;
+	struct ms5611_state *st = iio_priv(indio_dev);
+
+	ret = st->reset(&indio_dev->dev);
+	if (ret < 0) {
+		dev_err(&indio_dev->dev, "failed to reset device\n");
+		return ret;
+	}
+
+	usleep_range(3000, 4000);
+
+	return 0;
+}
+
+static int ms5611_read_raw(struct iio_dev *indio_dev,
+			   struct iio_chan_spec const *chan,
+			   int *val, int *val2, long mask)
+{
+	int ret;
+	s32 temp, pressure;
+	struct ms5611_state *st = iio_priv(indio_dev);
+
+	switch (mask) {
+	case IIO_CHAN_INFO_PROCESSED:
+		mutex_lock(&st->lock);
+		ret = ms5611_read_temp_and_pressure(indio_dev,
+						    &temp, &pressure);
+		mutex_unlock(&st->lock);
+		if (ret < 0)
+			return ret;
+
+		switch (chan->type) {
+		case IIO_TEMP:
+			*val = temp * 10;
+			return IIO_VAL_INT;
+		case IIO_PRESSURE:
+			*val = pressure / 1000;
+			*val2 = (pressure % 1000) * 1000;
+			return IIO_VAL_INT_PLUS_MICRO;
+		default:
+			return -EINVAL;
+		}
+	}
+
+	return -EINVAL;
+}
+
+static const struct iio_chan_spec ms5611_channels[] = {
+	{
+		.type = IIO_PRESSURE,
+		.info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED) |
+			BIT(IIO_CHAN_INFO_SCALE)
+	},
+	{
+		.type = IIO_TEMP,
+		.info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED) |
+			BIT(IIO_CHAN_INFO_SCALE)
+	}
+};
+
+static const struct iio_info ms5611_info = {
+	.read_raw = &ms5611_read_raw,
+	.driver_module = THIS_MODULE,
+};
+
+static int ms5611_init(struct iio_dev *indio_dev)
+{
+	int ret;
+
+	ret = ms5611_reset(indio_dev);
+	if (ret < 0)
+		return ret;
+
+	return ms5611_read_prom(indio_dev);
+}
+
+int ms5611_probe(struct iio_dev *indio_dev, struct device *dev)
+{
+	int ret;
+	struct ms5611_state *st = iio_priv(indio_dev);
+
+	mutex_init(&st->lock);
+	indio_dev->dev.parent = dev;
+	indio_dev->name = dev->driver->name;
+	indio_dev->info = &ms5611_info;
+	indio_dev->channels = ms5611_channels;
+	indio_dev->num_channels = ARRAY_SIZE(ms5611_channels);
+	indio_dev->modes = INDIO_DIRECT_MODE;
+
+	ret = ms5611_init(indio_dev);
+	if (ret < 0)
+		return ret;
+
+	return devm_iio_device_register(dev, indio_dev);
+}
+EXPORT_SYMBOL(ms5611_probe);
+
+MODULE_AUTHOR("Tomasz Duszynski <tduszyns@gmail.com>");
+MODULE_DESCRIPTION("MS5611 core driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/iio/pressure/ms5611_i2c.c b/drivers/iio/pressure/ms5611_i2c.c
new file mode 100644
index 0000000..748fd9a
--- /dev/null
+++ b/drivers/iio/pressure/ms5611_i2c.c
@@ -0,0 +1,128 @@
+/*
+ * MS5611 pressure and temperature sensor driver (I2C bus)
+ *
+ * Copyright (c) Tomasz Duszynski <tduszyns@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * 7-bit I2C slave addresses:
+ *
+ * 0x77 (CSB pin low)
+ * 0x76 (CSB pin high)
+ *
+ */
+
+#include <linux/delay.h>
+#include <linux/i2c.h>
+#include <linux/module.h>
+
+#include "ms5611.h"
+
+static int ms5611_i2c_reset(struct device *dev)
+{
+	struct ms5611_state *st = iio_priv(dev_to_iio_dev(dev));
+
+	return i2c_smbus_write_byte(st->client, MS5611_RESET);
+}
+
+static int ms5611_i2c_read_prom_word(struct device *dev, int index, u16 *word)
+{
+	int ret;
+	struct ms5611_state *st = iio_priv(dev_to_iio_dev(dev));
+
+	ret = i2c_smbus_read_word_swapped(st->client,
+			MS5611_READ_PROM_WORD + (index << 1));
+	if (ret < 0)
+		return ret;
+
+	*word = ret;
+
+	return 0;
+}
+
+static int ms5611_i2c_read_adc(struct ms5611_state *st, s32 *val)
+{
+	int ret;
+	u8 buf[3];
+
+	ret = i2c_smbus_read_i2c_block_data(st->client, MS5611_READ_ADC,
+					    3, buf);
+	if (ret < 0)
+		return ret;
+
+	*val = (buf[0] << 16) | (buf[1] << 8) | buf[2];
+
+	return 0;
+}
+
+static int ms5611_i2c_read_adc_temp_and_pressure(struct device *dev,
+						 s32 *temp, s32 *pressure)
+{
+	int ret;
+	struct ms5611_state *st = iio_priv(dev_to_iio_dev(dev));
+
+	ret = i2c_smbus_write_byte(st->client, MS5611_START_TEMP_CONV);
+	if (ret < 0)
+		return ret;
+
+	usleep_range(MS5611_CONV_TIME_MIN, MS5611_CONV_TIME_MAX);
+
+	ret = ms5611_i2c_read_adc(st, temp);
+	if (ret < 0)
+		return ret;
+
+	ret = i2c_smbus_write_byte(st->client, MS5611_START_PRESSURE_CONV);
+	if (ret < 0)
+		return ret;
+
+	usleep_range(MS5611_CONV_TIME_MIN, MS5611_CONV_TIME_MAX);
+
+	return ms5611_i2c_read_adc(st, pressure);
+}
+
+static int ms5611_i2c_probe(struct i2c_client *client,
+			    const struct i2c_device_id *id)
+{
+	struct ms5611_state *st;
+	struct iio_dev *indio_dev;
+
+	if (!i2c_check_functionality(client->adapter,
+				     I2C_FUNC_SMBUS_WRITE_BYTE |
+				     I2C_FUNC_SMBUS_READ_WORD_DATA |
+				     I2C_FUNC_SMBUS_READ_I2C_BLOCK))
+		return -ENODEV;
+
+	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*st));
+	if (!indio_dev)
+		return -ENOMEM;
+
+	st = iio_priv(indio_dev);
+	st->reset = ms5611_i2c_reset;
+	st->read_prom_word = ms5611_i2c_read_prom_word;
+	st->read_adc_temp_and_pressure = ms5611_i2c_read_adc_temp_and_pressure;
+	st->client = client;
+
+	return ms5611_probe(indio_dev, &client->dev);
+}
+
+static const struct i2c_device_id ms5611_id[] = {
+	{ "ms5611", 0 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, ms5611_id);
+
+static struct i2c_driver ms5611_driver = {
+	.driver = {
+		.name = "ms5611",
+		.owner = THIS_MODULE,
+	},
+	.id_table = ms5611_id,
+	.probe = ms5611_i2c_probe,
+};
+module_i2c_driver(ms5611_driver);
+
+MODULE_AUTHOR("Tomasz Duszynski <tduszyns@gmail.com>");
+MODULE_DESCRIPTION("MS5611 i2c driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/iio/pressure/ms5611_spi.c b/drivers/iio/pressure/ms5611_spi.c
new file mode 100644
index 0000000..976726f
--- /dev/null
+++ b/drivers/iio/pressure/ms5611_spi.c
@@ -0,0 +1,127 @@
+/*
+ * MS5611 pressure and temperature sensor driver (SPI bus)
+ *
+ * Copyright (c) Tomasz Duszynski <tduszyns@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/delay.h>
+#include <linux/module.h>
+#include <linux/spi/spi.h>
+
+#include "ms5611.h"
+
+static int ms5611_spi_reset(struct device *dev)
+{
+	u8 cmd = MS5611_RESET;
+	struct ms5611_state *st = iio_priv(dev_to_iio_dev(dev));
+
+	return spi_write_then_read(st->client, &cmd, 1, NULL, 0);
+}
+
+static int ms5611_spi_read_prom_word(struct device *dev, int index, u16 *word)
+{
+	int ret;
+	struct ms5611_state *st = iio_priv(dev_to_iio_dev(dev));
+
+	ret = spi_w8r16be(st->client, MS5611_READ_PROM_WORD + (index << 1));
+	if (ret < 0)
+		return ret;
+
+	*word = ret;
+
+	return 0;
+}
+
+static int ms5611_spi_read_adc(struct device *dev, s32 *val)
+{
+	int ret;
+	u8 buf[3] = { MS5611_READ_ADC };
+	struct ms5611_state *st = iio_priv(dev_to_iio_dev(dev));
+
+	ret = spi_write_then_read(st->client, buf, 1, buf, 3);
+	if (ret < 0)
+		return ret;
+
+	*val = (buf[0] << 16) | (buf[1] << 8) | buf[2];
+
+	return 0;
+}
+
+static int ms5611_spi_read_adc_temp_and_pressure(struct device *dev,
+						 s32 *temp, s32 *pressure)
+{
+	u8 cmd;
+	int ret;
+	struct ms5611_state *st = iio_priv(dev_to_iio_dev(dev));
+
+	cmd = MS5611_START_TEMP_CONV;
+	ret = spi_write_then_read(st->client, &cmd, 1, NULL, 0);
+	if (ret < 0)
+		return ret;
+
+	usleep_range(MS5611_CONV_TIME_MIN, MS5611_CONV_TIME_MAX);
+
+	ret = ms5611_spi_read_adc(dev, temp);
+	if (ret < 0)
+		return ret;
+
+	cmd = MS5611_START_PRESSURE_CONV;
+	ret = spi_write_then_read(st->client, &cmd, 1, NULL, 0);
+	if (ret < 0)
+		return ret;
+
+	usleep_range(MS5611_CONV_TIME_MIN, MS5611_CONV_TIME_MAX);
+
+	return ms5611_spi_read_adc(dev, pressure);
+}
+
+static int ms5611_spi_probe(struct spi_device *spi)
+{
+	int ret;
+	struct ms5611_state *st;
+	struct iio_dev *indio_dev;
+
+	indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
+	if (!indio_dev)
+		return -ENOMEM;
+
+	spi->mode = SPI_MODE_0;
+	spi->max_speed_hz = 20000000;
+	spi->bits_per_word = 8;
+	ret = spi_setup(spi);
+	if (ret < 0)
+		return ret;
+
+	st = iio_priv(indio_dev);
+	st->reset = ms5611_spi_reset;
+	st->read_prom_word = ms5611_spi_read_prom_word;
+	st->read_adc_temp_and_pressure = ms5611_spi_read_adc_temp_and_pressure;
+	st->client = spi;
+
+	return ms5611_probe(indio_dev, &spi->dev);
+}
+
+static const struct spi_device_id ms5611_id[] = {
+	{ "ms5611", 0 },
+	{ }
+};
+MODULE_DEVICE_TABLE(spi, ms5611_id);
+
+static struct spi_driver ms5611_driver = {
+	.driver = {
+		.name = "ms5611",
+		.owner = THIS_MODULE,
+	},
+	.id_table = ms5611_id,
+	.probe = ms5611_spi_probe,
+};
+module_spi_driver(ms5611_driver);
+
+MODULE_AUTHOR("Tomasz Duszynski <tduszyns@gmail.com>");
+MODULE_DESCRIPTION("MS5611 spi driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/iio/proximity/sx9500.c b/drivers/iio/proximity/sx9500.c
index 74dff4e..fa40f6d 100644
--- a/drivers/iio/proximity/sx9500.c
+++ b/drivers/iio/proximity/sx9500.c
@@ -494,7 +494,7 @@ static irqreturn_t sx9500_trigger_handler(int irq, void *private)
 
 	mutex_lock(&data->mutex);
 
-	for_each_set_bit(bit, indio_dev->buffer->scan_mask,
+	for_each_set_bit(bit, indio_dev->active_scan_mask,
 			 indio_dev->masklength) {
 		ret = sx9500_read_proximity(data, &indio_dev->channels[bit],
 					    &val);
@@ -618,16 +618,12 @@ static int sx9500_gpio_probe(struct i2c_client *client,
 	dev = &client->dev;
 
 	/* data ready gpio interrupt pin */
-	gpio = devm_gpiod_get_index(dev, SX9500_GPIO_NAME, 0);
+	gpio = devm_gpiod_get_index(dev, SX9500_GPIO_NAME, 0, GPIOD_IN);
 	if (IS_ERR(gpio)) {
 		dev_err(dev, "acpi gpio get index failed\n");
 		return PTR_ERR(gpio);
 	}
 
-	ret = gpiod_direction_input(gpio);
-	if (ret)
-		return ret;
-
 	ret = gpiod_to_irq(gpio);
 
 	dev_dbg(dev, "GPIO resource, no:%d irq:%d\n", desc_to_gpio(gpio), ret);
diff --git a/drivers/iio/temperature/mlx90614.c b/drivers/iio/temperature/mlx90614.c
index c8b6ac8..a112fc9 100644
--- a/drivers/iio/temperature/mlx90614.c
+++ b/drivers/iio/temperature/mlx90614.c
@@ -2,6 +2,7 @@
  * mlx90614.c - Support for Melexis MLX90614 contactless IR temperature sensor
  *
  * Copyright (c) 2014 Peter Meerwald <pmeerw@pmeerw.net>
+ * Copyright (c) 2015 Essensium NV
  *
  * This file is subject to the terms and conditions of version 2 of
  * the GNU General Public License.  See the file COPYING in the main
@@ -20,11 +21,35 @@
 
 #include <linux/iio/iio.h>
 
-#define MLX90614_OP_RAM 0x00
+#define MLX90614_OP_RAM		0x00
+#define MLX90614_OP_EEPROM	0x20
+#define MLX90614_OP_SLEEP	0xff
 
 /* RAM offsets with 16-bit data, MSB first */
-#define MLX90614_TA 0x06 /* ambient temperature */
-#define MLX90614_TOBJ1 0x07 /* object temperature */
+#define MLX90614_RAW1	(MLX90614_OP_RAM | 0x04) /* raw data IR channel 1 */
+#define MLX90614_RAW2	(MLX90614_OP_RAM | 0x05) /* raw data IR channel 2 */
+#define MLX90614_TA	(MLX90614_OP_RAM | 0x06) /* ambient temperature */
+#define MLX90614_TOBJ1	(MLX90614_OP_RAM | 0x07) /* object 1 temperature */
+#define MLX90614_TOBJ2	(MLX90614_OP_RAM | 0x08) /* object 2 temperature */
+
+/* EEPROM offsets with 16-bit data, MSB first */
+#define MLX90614_EMISSIVITY	(MLX90614_OP_EEPROM | 0x04) /* emissivity correction coefficient */
+#define MLX90614_CONFIG		(MLX90614_OP_EEPROM | 0x05) /* configuration register */
+
+/* Control bits in configuration register */
+#define MLX90614_CONFIG_IIR_SHIFT 0 /* IIR coefficient */
+#define MLX90614_CONFIG_IIR_MASK (0x7 << MLX90614_CONFIG_IIR_SHIFT)
+#define MLX90614_CONFIG_DUAL_SHIFT 6 /* single (0) or dual (1) IR sensor */
+#define MLX90614_CONFIG_DUAL_MASK (1 << MLX90614_CONFIG_DUAL_SHIFT)
+#define MLX90614_CONFIG_FIR_SHIFT 8 /* FIR coefficient */
+#define MLX90614_CONFIG_FIR_MASK (0x7 << MLX90614_CONFIG_FIR_SHIFT)
+#define MLX90614_CONFIG_GAIN_SHIFT 11 /* gain */
+#define MLX90614_CONFIG_GAIN_MASK (0x7 << MLX90614_CONFIG_GAIN_SHIFT)
+
+/* Timings (in ms) */
+#define MLX90614_TIMING_EEPROM 20 /* time for EEPROM write/erase to complete */
+#define MLX90614_TIMING_WAKEUP 34 /* time to hold SDA low for wake-up */
+#define MLX90614_TIMING_STARTUP 250 /* time before first data after wake-up */
 
 struct mlx90614_data {
 	struct i2c_client *client;
@@ -35,26 +60,34 @@ static int mlx90614_read_raw(struct iio_dev *indio_dev,
 			    int *val2, long mask)
 {
 	struct mlx90614_data *data = iio_priv(indio_dev);
+	u8 cmd;
 	s32 ret;
 
 	switch (mask) {
 	case IIO_CHAN_INFO_RAW: /* 0.02K / LSB */
 		switch (channel->channel2) {
 		case IIO_MOD_TEMP_AMBIENT:
-			ret = i2c_smbus_read_word_data(data->client,
-			    MLX90614_OP_RAM | MLX90614_TA);
-			if (ret < 0)
-				return ret;
+			cmd = MLX90614_TA;
 			break;
 		case IIO_MOD_TEMP_OBJECT:
-			ret = i2c_smbus_read_word_data(data->client,
-			    MLX90614_OP_RAM | MLX90614_TOBJ1);
-			if (ret < 0)
-				return ret;
+			switch (channel->channel) {
+			case 0:
+				cmd = MLX90614_TOBJ1;
+				break;
+			case 1:
+				cmd = MLX90614_TOBJ2;
+				break;
+			default:
+				return -EINVAL;
+			}
 			break;
 		default:
 			return -EINVAL;
 		}
+
+		ret = i2c_smbus_read_word_data(data->client, cmd);
+		if (ret < 0)
+			return ret;
 		*val = ret;
 		return IIO_VAL_INT;
 	case IIO_CHAN_INFO_OFFSET:
@@ -86,6 +119,16 @@ static const struct iio_chan_spec mlx90614_channels[] = {
 		.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_OFFSET) |
 		    BIT(IIO_CHAN_INFO_SCALE),
 	},
+	{
+		.type = IIO_TEMP,
+		.indexed = 1,
+		.modified = 1,
+		.channel = 1,
+		.channel2 = IIO_MOD_TEMP_OBJECT,
+		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
+		.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_OFFSET) |
+		    BIT(IIO_CHAN_INFO_SCALE),
+	},
 };
 
 static const struct iio_info mlx90614_info = {
@@ -93,11 +136,25 @@ static const struct iio_info mlx90614_info = {
 	.driver_module = THIS_MODULE,
 };
 
+/* Return 0 for single sensor, 1 for dual sensor, <0 on error. */
+static int mlx90614_probe_num_ir_sensors(struct i2c_client *client)
+{
+	s32 ret;
+
+	ret = i2c_smbus_read_word_data(client, MLX90614_CONFIG);
+
+	if (ret < 0)
+		return ret;
+
+	return (ret & MLX90614_CONFIG_DUAL_MASK) ? 1 : 0;
+}
+
 static int mlx90614_probe(struct i2c_client *client,
 			 const struct i2c_device_id *id)
 {
 	struct iio_dev *indio_dev;
 	struct mlx90614_data *data;
+	int ret;
 
 	if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_WORD_DATA))
 		return -ENODEV;
@@ -115,8 +172,21 @@ static int mlx90614_probe(struct i2c_client *client,
 	indio_dev->modes = INDIO_DIRECT_MODE;
 	indio_dev->info = &mlx90614_info;
 
-	indio_dev->channels = mlx90614_channels;
-	indio_dev->num_channels = ARRAY_SIZE(mlx90614_channels);
+	ret = mlx90614_probe_num_ir_sensors(client);
+	switch (ret) {
+	case 0:
+		dev_dbg(&client->dev, "Found single sensor");
+		indio_dev->channels = mlx90614_channels;
+		indio_dev->num_channels = 2;
+		break;
+	case 1:
+		dev_dbg(&client->dev, "Found dual sensor");
+		indio_dev->channels = mlx90614_channels;
+		indio_dev->num_channels = 3;
+		break;
+	default:
+		return ret;
+	}
 
 	return iio_device_register(indio_dev);
 }
@@ -146,5 +216,6 @@ static struct i2c_driver mlx90614_driver = {
 module_i2c_driver(mlx90614_driver);
 
 MODULE_AUTHOR("Peter Meerwald <pmeerw@pmeerw.net>");
+MODULE_AUTHOR("Vianney le Clément de Saint-Marcq <vianney.leclement@essensium.com>");
 MODULE_DESCRIPTION("Melexis MLX90614 contactless IR temperature sensor driver");
 MODULE_LICENSE("GPL");
diff --git a/drivers/infiniband/core/umem.c b/drivers/infiniband/core/umem.c
index aec7a6a..8c014b5 100644
--- a/drivers/infiniband/core/umem.c
+++ b/drivers/infiniband/core/umem.c
@@ -99,6 +99,14 @@ struct ib_umem *ib_umem_get(struct ib_ucontext *context, unsigned long addr,
 	if (dmasync)
 		dma_set_attr(DMA_ATTR_WRITE_BARRIER, &attrs);
 
+	/*
+	 * If the combination of the addr and size requested for this memory
+	 * region causes an integer overflow, return error.
+	 */
+	if ((PAGE_ALIGN(addr + size) <= size) ||
+	    (PAGE_ALIGN(addr + size) <= addr))
+		return ERR_PTR(-EINVAL);
+
 	if (!can_do_mlock())
 		return ERR_PTR(-EPERM);
 
diff --git a/drivers/infiniband/hw/mlx4/mad.c b/drivers/infiniband/hw/mlx4/mad.c
index c761971..5904026 100644
--- a/drivers/infiniband/hw/mlx4/mad.c
+++ b/drivers/infiniband/hw/mlx4/mad.c
@@ -64,6 +64,14 @@ enum {
 #define GUID_TBL_BLK_NUM_ENTRIES 8
 #define GUID_TBL_BLK_SIZE (GUID_TBL_ENTRY_SIZE * GUID_TBL_BLK_NUM_ENTRIES)
 
+/* Counters should be saturate once they reach their maximum value */
+#define ASSIGN_32BIT_COUNTER(counter, value) do {\
+	if ((value) > U32_MAX)			 \
+		counter = cpu_to_be32(U32_MAX); \
+	else					 \
+		counter = cpu_to_be32(value);	 \
+} while (0)
+
 struct mlx4_mad_rcv_buf {
 	struct ib_grh grh;
 	u8 payload[256];
@@ -806,10 +814,14 @@ static int ib_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num,
 static void edit_counter(struct mlx4_counter *cnt,
 					struct ib_pma_portcounters *pma_cnt)
 {
-	pma_cnt->port_xmit_data = cpu_to_be32((be64_to_cpu(cnt->tx_bytes)>>2));
-	pma_cnt->port_rcv_data  = cpu_to_be32((be64_to_cpu(cnt->rx_bytes)>>2));
-	pma_cnt->port_xmit_packets = cpu_to_be32(be64_to_cpu(cnt->tx_frames));
-	pma_cnt->port_rcv_packets  = cpu_to_be32(be64_to_cpu(cnt->rx_frames));
+	ASSIGN_32BIT_COUNTER(pma_cnt->port_xmit_data,
+			     (be64_to_cpu(cnt->tx_bytes) >> 2));
+	ASSIGN_32BIT_COUNTER(pma_cnt->port_rcv_data,
+			     (be64_to_cpu(cnt->rx_bytes) >> 2));
+	ASSIGN_32BIT_COUNTER(pma_cnt->port_xmit_packets,
+			     be64_to_cpu(cnt->tx_frames));
+	ASSIGN_32BIT_COUNTER(pma_cnt->port_rcv_packets,
+			     be64_to_cpu(cnt->rx_frames));
 }
 
 static int iboe_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num,
diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c
index ac6e2b7..b972c0b 100644
--- a/drivers/infiniband/hw/mlx4/main.c
+++ b/drivers/infiniband/hw/mlx4/main.c
@@ -2697,8 +2697,12 @@ static void handle_bonded_port_state_event(struct work_struct *work)
 	spin_lock_bh(&ibdev->iboe.lock);
 	for (i = 0; i < MLX4_MAX_PORTS; ++i) {
 		struct net_device *curr_netdev = ibdev->iboe.netdevs[i];
+		enum ib_port_state curr_port_state;
 
-		enum ib_port_state curr_port_state =
+		if (!curr_netdev)
+			continue;
+
+		curr_port_state =
 			(netif_running(curr_netdev) &&
 			 netif_carrier_ok(curr_netdev)) ?
 			IB_PORT_ACTIVE : IB_PORT_DOWN;
diff --git a/drivers/input/keyboard/tc3589x-keypad.c b/drivers/input/keyboard/tc3589x-keypad.c
index 8ff612d..5639325 100644
--- a/drivers/input/keyboard/tc3589x-keypad.c
+++ b/drivers/input/keyboard/tc3589x-keypad.c
@@ -411,9 +411,9 @@ static int tc3589x_keypad_probe(struct platform_device *pdev)
 
 	input_set_drvdata(input, keypad);
 
-	error = request_threaded_irq(irq, NULL,
-			tc3589x_keypad_irq, plat->irqtype,
-			"tc3589x-keypad", keypad);
+	error = request_threaded_irq(irq, NULL, tc3589x_keypad_irq,
+				     plat->irqtype | IRQF_ONESHOT,
+				     "tc3589x-keypad", keypad);
 	if (error < 0) {
 		dev_err(&pdev->dev,
 				"Could not allocate irq %d,error %d\n",
diff --git a/drivers/input/misc/mma8450.c b/drivers/input/misc/mma8450.c
index 59d4dcd..9822877 100644
--- a/drivers/input/misc/mma8450.c
+++ b/drivers/input/misc/mma8450.c
@@ -187,6 +187,7 @@ static int mma8450_probe(struct i2c_client *c,
 	idev->private		= m;
 	idev->input->name	= MMA8450_DRV_NAME;
 	idev->input->id.bustype	= BUS_I2C;
+	idev->input->dev.parent = &c->dev;
 	idev->poll		= mma8450_poll;
 	idev->poll_interval	= POLL_INTERVAL;
 	idev->poll_interval_max	= POLL_INTERVAL_MAX;
diff --git a/drivers/input/mouse/alps.c b/drivers/input/mouse/alps.c
index d28726a..27bcdbc 100644
--- a/drivers/input/mouse/alps.c
+++ b/drivers/input/mouse/alps.c
@@ -1154,10 +1154,28 @@ out:
 	mutex_unlock(&alps_mutex);
 }
 
-static void alps_report_bare_ps2_packet(struct input_dev *dev,
+static void alps_report_bare_ps2_packet(struct psmouse *psmouse,
 					unsigned char packet[],
 					bool report_buttons)
 {
+	struct alps_data *priv = psmouse->private;
+	struct input_dev *dev;
+
+	/* Figure out which device to use to report the bare packet */
+	if (priv->proto_version == ALPS_PROTO_V2 &&
+	    (priv->flags & ALPS_DUALPOINT)) {
+		/* On V2 devices the DualPoint Stick reports bare packets */
+		dev = priv->dev2;
+	} else if (unlikely(IS_ERR_OR_NULL(priv->dev3))) {
+		/* Register dev3 mouse if we received PS/2 packet first time */
+		if (!IS_ERR(priv->dev3))
+			psmouse_queue_work(psmouse, &priv->dev3_register_work,
+					   0);
+		return;
+	} else {
+		dev = priv->dev3;
+	}
+
 	if (report_buttons)
 		alps_report_buttons(dev, NULL,
 				packet[0] & 1, packet[0] & 2, packet[0] & 4);
@@ -1232,8 +1250,8 @@ static psmouse_ret_t alps_handle_interleaved_ps2(struct psmouse *psmouse)
 		 * de-synchronization.
 		 */
 
-		alps_report_bare_ps2_packet(priv->dev2,
-					    &psmouse->packet[3], false);
+		alps_report_bare_ps2_packet(psmouse, &psmouse->packet[3],
+					    false);
 
 		/*
 		 * Continue with the standard ALPS protocol handling,
@@ -1289,18 +1307,9 @@ static psmouse_ret_t alps_process_byte(struct psmouse *psmouse)
 	 * properly we only do this if the device is fully synchronized.
 	 */
 	if (!psmouse->out_of_sync_cnt && (psmouse->packet[0] & 0xc8) == 0x08) {
-
-		/* Register dev3 mouse if we received PS/2 packet first time */
-		if (unlikely(!priv->dev3))
-			psmouse_queue_work(psmouse,
-					   &priv->dev3_register_work, 0);
-
 		if (psmouse->pktcnt == 3) {
-			/* Once dev3 mouse device is registered report data */
-			if (likely(!IS_ERR_OR_NULL(priv->dev3)))
-				alps_report_bare_ps2_packet(priv->dev3,
-							    psmouse->packet,
-							    true);
+			alps_report_bare_ps2_packet(psmouse, psmouse->packet,
+						    true);
 			return PSMOUSE_FULL_PACKET;
 		}
 		return PSMOUSE_GOOD_DATA;
@@ -2281,10 +2290,12 @@ static int alps_set_protocol(struct psmouse *psmouse,
 		priv->set_abs_params = alps_set_abs_params_mt;
 		priv->nibble_commands = alps_v3_nibble_commands;
 		priv->addr_command = PSMOUSE_CMD_RESET_WRAP;
-		priv->x_max = 1360;
-		priv->y_max = 660;
 		priv->x_bits = 23;
 		priv->y_bits = 12;
+
+		if (alps_dolphin_get_device_area(psmouse, priv))
+			return -EIO;
+
 		break;
 
 	case ALPS_PROTO_V6:
@@ -2303,9 +2314,8 @@ static int alps_set_protocol(struct psmouse *psmouse,
 		priv->set_abs_params = alps_set_abs_params_mt;
 		priv->nibble_commands = alps_v3_nibble_commands;
 		priv->addr_command = PSMOUSE_CMD_RESET_WRAP;
-
-		if (alps_dolphin_get_device_area(psmouse, priv))
-			return -EIO;
+		priv->x_max = 0xfff;
+		priv->y_max = 0x7ff;
 
 		if (priv->fw_ver[1] != 0xba)
 			priv->flags |= ALPS_BUTTONPAD;
@@ -2605,8 +2615,10 @@ int alps_detect(struct psmouse *psmouse, bool set_properties)
 		return -ENOMEM;
 
 	error = alps_identify(psmouse, priv);
-	if (error)
+	if (error) {
+		kfree(priv);
 		return error;
+	}
 
 	if (set_properties) {
 		psmouse->vendor = "ALPS";
diff --git a/drivers/input/mouse/cyapa_gen3.c b/drivers/input/mouse/cyapa_gen3.c
index 77e9d70..1e2291c 100644
--- a/drivers/input/mouse/cyapa_gen3.c
+++ b/drivers/input/mouse/cyapa_gen3.c
@@ -20,7 +20,7 @@
 #include <linux/input/mt.h>
 #include <linux/module.h>
 #include <linux/slab.h>
-#include <linux/unaligned/access_ok.h>
+#include <asm/unaligned.h>
 #include "cyapa.h"
 
 
diff --git a/drivers/input/mouse/cyapa_gen5.c b/drivers/input/mouse/cyapa_gen5.c
index ddf5393..5b611dd 100644
--- a/drivers/input/mouse/cyapa_gen5.c
+++ b/drivers/input/mouse/cyapa_gen5.c
@@ -17,7 +17,7 @@
 #include <linux/mutex.h>
 #include <linux/completion.h>
 #include <linux/slab.h>
-#include <linux/unaligned/access_ok.h>
+#include <asm/unaligned.h>
 #include <linux/crc-itu-t.h>
 #include "cyapa.h"
 
@@ -1926,7 +1926,7 @@ static int cyapa_gen5_read_idac_data(struct cyapa *cyapa,
 				electrodes_tx = cyapa->electrodes_x;
 			max_element_cnt = ((cyapa->aligned_electrodes_rx + 7) &
 						~7u) * electrodes_tx;
-		} else if (idac_data_type == GEN5_RETRIEVE_SELF_CAP_PWC_DATA) {
+		} else {
 			offset = 2;
 			max_element_cnt = cyapa->electrodes_x +
 						cyapa->electrodes_y;
diff --git a/drivers/input/mouse/focaltech.c b/drivers/input/mouse/focaltech.c
index 757f78a..23d2594 100644
--- a/drivers/input/mouse/focaltech.c
+++ b/drivers/input/mouse/focaltech.c
@@ -67,9 +67,6 @@ static void focaltech_reset(struct psmouse *psmouse)
 
 #define FOC_MAX_FINGERS 5
 
-#define FOC_MAX_X 2431
-#define FOC_MAX_Y 1663
-
 /*
  * Current state of a single finger on the touchpad.
  */
@@ -129,9 +126,17 @@ static void focaltech_report_state(struct psmouse *psmouse)
 		input_mt_slot(dev, i);
 		input_mt_report_slot_state(dev, MT_TOOL_FINGER, active);
 		if (active) {
-			input_report_abs(dev, ABS_MT_POSITION_X, finger->x);
+			unsigned int clamped_x, clamped_y;
+			/*
+			 * The touchpad might report invalid data, so we clamp
+			 * the resulting values so that we do not confuse
+			 * userspace.
+			 */
+			clamped_x = clamp(finger->x, 0U, priv->x_max);
+			clamped_y = clamp(finger->y, 0U, priv->y_max);
+			input_report_abs(dev, ABS_MT_POSITION_X, clamped_x);
 			input_report_abs(dev, ABS_MT_POSITION_Y,
-					 FOC_MAX_Y - finger->y);
+					 priv->y_max - clamped_y);
 		}
 	}
 	input_mt_report_pointer_emulation(dev, true);
@@ -180,16 +185,6 @@ static void focaltech_process_abs_packet(struct psmouse *psmouse,
 
 	state->pressed = (packet[0] >> 4) & 1;
 
-	/*
-	 * packet[5] contains some kind of tool size in the most
-	 * significant nibble. 0xff is a special value (latching) that
-	 * signals a large contact area.
-	 */
-	if (packet[5] == 0xff) {
-		state->fingers[finger].valid = false;
-		return;
-	}
-
 	state->fingers[finger].x = ((packet[1] & 0xf) << 8) | packet[2];
 	state->fingers[finger].y = (packet[3] << 8) | packet[4];
 	state->fingers[finger].valid = true;
@@ -381,6 +376,23 @@ static int focaltech_read_size(struct psmouse *psmouse)
 
 	return 0;
 }
+
+void focaltech_set_resolution(struct psmouse *psmouse, unsigned int resolution)
+{
+	/* not supported yet */
+}
+
+static void focaltech_set_rate(struct psmouse *psmouse, unsigned int rate)
+{
+	/* not supported yet */
+}
+
+static void focaltech_set_scale(struct psmouse *psmouse,
+				enum psmouse_scale scale)
+{
+	/* not supported yet */
+}
+
 int focaltech_init(struct psmouse *psmouse)
 {
 	struct focaltech_data *priv;
@@ -415,6 +427,14 @@ int focaltech_init(struct psmouse *psmouse)
 	psmouse->cleanup = focaltech_reset;
 	/* resync is not supported yet */
 	psmouse->resync_time = 0;
+	/*
+	 * rate/resolution/scale changes are not supported yet, and
+	 * the generic implementations of these functions seem to
+	 * confuse some touchpads
+	 */
+	psmouse->set_resolution = focaltech_set_resolution;
+	psmouse->set_rate = focaltech_set_rate;
+	psmouse->set_scale = focaltech_set_scale;
 
 	return 0;
 
diff --git a/drivers/input/mouse/psmouse-base.c b/drivers/input/mouse/psmouse-base.c
index 4ccd01d..8bc6123 100644
--- a/drivers/input/mouse/psmouse-base.c
+++ b/drivers/input/mouse/psmouse-base.c
@@ -454,6 +454,17 @@ static void psmouse_set_rate(struct psmouse *psmouse, unsigned int rate)
 }
 
 /*
+ * Here we set the mouse scaling.
+ */
+
+static void psmouse_set_scale(struct psmouse *psmouse, enum psmouse_scale scale)
+{
+	ps2_command(&psmouse->ps2dev, NULL,
+		    scale == PSMOUSE_SCALE21 ? PSMOUSE_CMD_SETSCALE21 :
+					       PSMOUSE_CMD_SETSCALE11);
+}
+
+/*
  * psmouse_poll() - default poll handler. Everyone except for ALPS uses it.
  */
 
@@ -689,6 +700,7 @@ static void psmouse_apply_defaults(struct psmouse *psmouse)
 
 	psmouse->set_rate = psmouse_set_rate;
 	psmouse->set_resolution = psmouse_set_resolution;
+	psmouse->set_scale = psmouse_set_scale;
 	psmouse->poll = psmouse_poll;
 	psmouse->protocol_handler = psmouse_process_byte;
 	psmouse->pktsize = 3;
@@ -1160,7 +1172,7 @@ static void psmouse_initialize(struct psmouse *psmouse)
 	if (psmouse_max_proto != PSMOUSE_PS2) {
 		psmouse->set_rate(psmouse, psmouse->rate);
 		psmouse->set_resolution(psmouse, psmouse->resolution);
-		ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSCALE11);
+		psmouse->set_scale(psmouse, PSMOUSE_SCALE11);
 	}
 }
 
diff --git a/drivers/input/mouse/psmouse.h b/drivers/input/mouse/psmouse.h
index c2ff137..d02e1bd 100644
--- a/drivers/input/mouse/psmouse.h
+++ b/drivers/input/mouse/psmouse.h
@@ -36,6 +36,11 @@ typedef enum {
 	PSMOUSE_FULL_PACKET
 } psmouse_ret_t;
 
+enum psmouse_scale {
+	PSMOUSE_SCALE11,
+	PSMOUSE_SCALE21
+};
+
 struct psmouse {
 	void *private;
 	struct input_dev *dev;
@@ -67,6 +72,7 @@ struct psmouse {
 	psmouse_ret_t (*protocol_handler)(struct psmouse *psmouse);
 	void (*set_rate)(struct psmouse *psmouse, unsigned int rate);
 	void (*set_resolution)(struct psmouse *psmouse, unsigned int resolution);
+	void (*set_scale)(struct psmouse *psmouse, enum psmouse_scale scale);
 
 	int (*reconnect)(struct psmouse *psmouse);
 	void (*disconnect)(struct psmouse *psmouse);
diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c
index f2cceb6..3b06c8a 100644
--- a/drivers/input/mouse/synaptics.c
+++ b/drivers/input/mouse/synaptics.c
@@ -67,9 +67,6 @@
 #define X_MAX_POSITIVE 8176
 #define Y_MAX_POSITIVE 8176
 
-/* maximum ABS_MT_POSITION displacement (in mm) */
-#define DMAX 10
-
 /*****************************************************************************
  *	Stuff we need even when we do not want native Synaptics support
  ****************************************************************************/
@@ -123,32 +120,46 @@ void synaptics_reset(struct psmouse *psmouse)
 
 static bool cr48_profile_sensor;
 
+#define ANY_BOARD_ID 0
 struct min_max_quirk {
 	const char * const *pnp_ids;
+	struct {
+		unsigned long int min, max;
+	} board_id;
 	int x_min, x_max, y_min, y_max;
 };
 
 static const struct min_max_quirk min_max_pnpid_table[] = {
 	{
 		(const char * const []){"LEN0033", NULL},
+		{ANY_BOARD_ID, ANY_BOARD_ID},
 		1024, 5052, 2258, 4832
 	},
 	{
-		(const char * const []){"LEN0035", "LEN0042", NULL},
+		(const char * const []){"LEN0042", NULL},
+		{ANY_BOARD_ID, ANY_BOARD_ID},
 		1232, 5710, 1156, 4696
 	},
 	{
 		(const char * const []){"LEN0034", "LEN0036", "LEN0037",
 					"LEN0039", "LEN2002", "LEN2004",
 					NULL},
+		{ANY_BOARD_ID, 2961},
 		1024, 5112, 2024, 4832
 	},
 	{
 		(const char * const []){"LEN2001", NULL},
+		{ANY_BOARD_ID, ANY_BOARD_ID},
 		1024, 5022, 2508, 4832
 	},
 	{
 		(const char * const []){"LEN2006", NULL},
+		{2691, 2691},
+		1024, 5045, 2457, 4832
+	},
+	{
+		(const char * const []){"LEN2006", NULL},
+		{ANY_BOARD_ID, ANY_BOARD_ID},
 		1264, 5675, 1171, 4688
 	},
 	{ }
@@ -175,9 +186,7 @@ static const char * const topbuttonpad_pnp_ids[] = {
 	"LEN0041",
 	"LEN0042", /* Yoga */
 	"LEN0045",
-	"LEN0046",
 	"LEN0047",
-	"LEN0048",
 	"LEN0049",
 	"LEN2000",
 	"LEN2001", /* Edge E431 */
@@ -185,7 +194,7 @@ static const char * const topbuttonpad_pnp_ids[] = {
 	"LEN2003",
 	"LEN2004", /* L440 */
 	"LEN2005",
-	"LEN2006",
+	"LEN2006", /* Edge E440/E540 */
 	"LEN2007",
 	"LEN2008",
 	"LEN2009",
@@ -235,18 +244,39 @@ static int synaptics_model_id(struct psmouse *psmouse)
 	return 0;
 }
 
+static int synaptics_more_extended_queries(struct psmouse *psmouse)
+{
+	struct synaptics_data *priv = psmouse->private;
+	unsigned char buf[3];
+
+	if (synaptics_send_cmd(psmouse, SYN_QUE_MEXT_CAPAB_10, buf))
+		return -1;
+
+	priv->ext_cap_10 = (buf[0]<<16) | (buf[1]<<8) | buf[2];
+
+	return 0;
+}
+
 /*
- * Read the board id from the touchpad
+ * Read the board id and the "More Extended Queries" from the touchpad
  * The board id is encoded in the "QUERY MODES" response
  */
-static int synaptics_board_id(struct psmouse *psmouse)
+static int synaptics_query_modes(struct psmouse *psmouse)
 {
 	struct synaptics_data *priv = psmouse->private;
 	unsigned char bid[3];
 
+	/* firmwares prior 7.5 have no board_id encoded */
+	if (SYN_ID_FULL(priv->identity) < 0x705)
+		return 0;
+
 	if (synaptics_send_cmd(psmouse, SYN_QUE_MODES, bid))
 		return -1;
 	priv->board_id = ((bid[0] & 0xfc) << 6) | bid[1];
+
+	if (SYN_MEXT_CAP_BIT(bid[0]))
+		return synaptics_more_extended_queries(psmouse);
+
 	return 0;
 }
 
@@ -346,7 +376,6 @@ static int synaptics_resolution(struct psmouse *psmouse)
 {
 	struct synaptics_data *priv = psmouse->private;
 	unsigned char resp[3];
-	int i;
 
 	if (SYN_ID_MAJOR(priv->identity) < 4)
 		return 0;
@@ -358,17 +387,6 @@ static int synaptics_resolution(struct psmouse *psmouse)
 		}
 	}
 
-	for (i = 0; min_max_pnpid_table[i].pnp_ids; i++) {
-		if (psmouse_matches_pnp_id(psmouse,
-					   min_max_pnpid_table[i].pnp_ids)) {
-			priv->x_min = min_max_pnpid_table[i].x_min;
-			priv->x_max = min_max_pnpid_table[i].x_max;
-			priv->y_min = min_max_pnpid_table[i].y_min;
-			priv->y_max = min_max_pnpid_table[i].y_max;
-			return 0;
-		}
-	}
-
 	if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 5 &&
 	    SYN_CAP_MAX_DIMENSIONS(priv->ext_cap_0c)) {
 		if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_MAX_COORDS, resp)) {
@@ -377,23 +395,69 @@ static int synaptics_resolution(struct psmouse *psmouse)
 		} else {
 			priv->x_max = (resp[0] << 5) | ((resp[1] & 0x0f) << 1);
 			priv->y_max = (resp[2] << 5) | ((resp[1] & 0xf0) >> 3);
+			psmouse_info(psmouse,
+				     "queried max coordinates: x [..%d], y [..%d]\n",
+				     priv->x_max, priv->y_max);
 		}
 	}
 
-	if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 7 &&
-	    SYN_CAP_MIN_DIMENSIONS(priv->ext_cap_0c)) {
+	if (SYN_CAP_MIN_DIMENSIONS(priv->ext_cap_0c) &&
+	    (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 7 ||
+	     /*
+	      * Firmware v8.1 does not report proper number of extended
+	      * capabilities, but has been proven to report correct min
+	      * coordinates.
+	      */
+	     SYN_ID_FULL(priv->identity) == 0x801)) {
 		if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_MIN_COORDS, resp)) {
 			psmouse_warn(psmouse,
 				     "device claims to have min coordinates query, but I'm not able to read it.\n");
 		} else {
 			priv->x_min = (resp[0] << 5) | ((resp[1] & 0x0f) << 1);
 			priv->y_min = (resp[2] << 5) | ((resp[1] & 0xf0) >> 3);
+			psmouse_info(psmouse,
+				     "queried min coordinates: x [%d..], y [%d..]\n",
+				     priv->x_min, priv->y_min);
 		}
 	}
 
 	return 0;
 }
 
+/*
+ * Apply quirk(s) if the hardware matches
+ */
+
+static void synaptics_apply_quirks(struct psmouse *psmouse)
+{
+	struct synaptics_data *priv = psmouse->private;
+	int i;
+
+	for (i = 0; min_max_pnpid_table[i].pnp_ids; i++) {
+		if (!psmouse_matches_pnp_id(psmouse,
+					    min_max_pnpid_table[i].pnp_ids))
+			continue;
+
+		if (min_max_pnpid_table[i].board_id.min != ANY_BOARD_ID &&
+		    priv->board_id < min_max_pnpid_table[i].board_id.min)
+			continue;
+
+		if (min_max_pnpid_table[i].board_id.max != ANY_BOARD_ID &&
+		    priv->board_id > min_max_pnpid_table[i].board_id.max)
+			continue;
+
+		priv->x_min = min_max_pnpid_table[i].x_min;
+		priv->x_max = min_max_pnpid_table[i].x_max;
+		priv->y_min = min_max_pnpid_table[i].y_min;
+		priv->y_max = min_max_pnpid_table[i].y_max;
+		psmouse_info(psmouse,
+			     "quirked min/max coordinates: x [%d..%d], y [%d..%d]\n",
+			     priv->x_min, priv->x_max,
+			     priv->y_min, priv->y_max);
+		break;
+	}
+}
+
 static int synaptics_query_hardware(struct psmouse *psmouse)
 {
 	if (synaptics_identify(psmouse))
@@ -402,13 +466,15 @@ static int synaptics_query_hardware(struct psmouse *psmouse)
 		return -1;
 	if (synaptics_firmware_id(psmouse))
 		return -1;
-	if (synaptics_board_id(psmouse))
+	if (synaptics_query_modes(psmouse))
 		return -1;
 	if (synaptics_capability(psmouse))
 		return -1;
 	if (synaptics_resolution(psmouse))
 		return -1;
 
+	synaptics_apply_quirks(psmouse);
+
 	return 0;
 }
 
@@ -516,18 +582,22 @@ static int synaptics_is_pt_packet(unsigned char *buf)
 	return (buf[0] & 0xFC) == 0x84 && (buf[3] & 0xCC) == 0xC4;
 }
 
-static void synaptics_pass_pt_packet(struct serio *ptport, unsigned char *packet)
+static void synaptics_pass_pt_packet(struct psmouse *psmouse,
+				     struct serio *ptport,
+				     unsigned char *packet)
 {
+	struct synaptics_data *priv = psmouse->private;
 	struct psmouse *child = serio_get_drvdata(ptport);
 
 	if (child && child->state == PSMOUSE_ACTIVATED) {
-		serio_interrupt(ptport, packet[1], 0);
+		serio_interrupt(ptport, packet[1] | priv->pt_buttons, 0);
 		serio_interrupt(ptport, packet[4], 0);
 		serio_interrupt(ptport, packet[5], 0);
 		if (child->pktsize == 4)
 			serio_interrupt(ptport, packet[2], 0);
-	} else
+	} else {
 		serio_interrupt(ptport, packet[1], 0);
+	}
 }
 
 static void synaptics_pt_activate(struct psmouse *psmouse)
@@ -605,6 +675,18 @@ static void synaptics_parse_agm(const unsigned char buf[],
 	}
 }
 
+static void synaptics_parse_ext_buttons(const unsigned char buf[],
+					struct synaptics_data *priv,
+					struct synaptics_hw_state *hw)
+{
+	unsigned int ext_bits =
+		(SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) + 1) >> 1;
+	unsigned int ext_mask = GENMASK(ext_bits - 1, 0);
+
+	hw->ext_buttons = buf[4] & ext_mask;
+	hw->ext_buttons |= (buf[5] & ext_mask) << ext_bits;
+}
+
 static bool is_forcepad;
 
 static int synaptics_parse_hw_state(const unsigned char buf[],
@@ -691,28 +773,9 @@ static int synaptics_parse_hw_state(const unsigned char buf[],
 			hw->down = ((buf[0] ^ buf[3]) & 0x02) ? 1 : 0;
 		}
 
-		if (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) &&
+		if (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) > 0 &&
 		    ((buf[0] ^ buf[3]) & 0x02)) {
-			switch (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) & ~0x01) {
-			default:
-				/*
-				 * if nExtBtn is greater than 8 it should be
-				 * considered invalid and treated as 0
-				 */
-				break;
-			case 8:
-				hw->ext_buttons |= ((buf[5] & 0x08)) ? 0x80 : 0;
-				hw->ext_buttons |= ((buf[4] & 0x08)) ? 0x40 : 0;
-			case 6:
-				hw->ext_buttons |= ((buf[5] & 0x04)) ? 0x20 : 0;
-				hw->ext_buttons |= ((buf[4] & 0x04)) ? 0x10 : 0;
-			case 4:
-				hw->ext_buttons |= ((buf[5] & 0x02)) ? 0x08 : 0;
-				hw->ext_buttons |= ((buf[4] & 0x02)) ? 0x04 : 0;
-			case 2:
-				hw->ext_buttons |= ((buf[5] & 0x01)) ? 0x02 : 0;
-				hw->ext_buttons |= ((buf[4] & 0x01)) ? 0x01 : 0;
-			}
+			synaptics_parse_ext_buttons(buf, priv, hw);
 		}
 	} else {
 		hw->x = (((buf[1] & 0x1f) << 8) | buf[2]);
@@ -774,12 +837,54 @@ static void synaptics_report_semi_mt_data(struct input_dev *dev,
 	}
 }
 
+static void synaptics_report_ext_buttons(struct psmouse *psmouse,
+					 const struct synaptics_hw_state *hw)
+{
+	struct input_dev *dev = psmouse->dev;
+	struct synaptics_data *priv = psmouse->private;
+	int ext_bits = (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) + 1) >> 1;
+	char buf[6] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
+	int i;
+
+	if (!SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap))
+		return;
+
+	/* Bug in FW 8.1, buttons are reported only when ExtBit is 1 */
+	if (SYN_ID_FULL(priv->identity) == 0x801 &&
+	    !((psmouse->packet[0] ^ psmouse->packet[3]) & 0x02))
+		return;
+
+	if (!SYN_CAP_EXT_BUTTONS_STICK(priv->ext_cap_10)) {
+		for (i = 0; i < ext_bits; i++) {
+			input_report_key(dev, BTN_0 + 2 * i,
+				hw->ext_buttons & (1 << i));
+			input_report_key(dev, BTN_1 + 2 * i,
+				hw->ext_buttons & (1 << (i + ext_bits)));
+		}
+		return;
+	}
+
+	/*
+	 * This generation of touchpads has the trackstick buttons
+	 * physically wired to the touchpad. Re-route them through
+	 * the pass-through interface.
+	 */
+	if (!priv->pt_port)
+		return;
+
+	/* The trackstick expects at most 3 buttons */
+	priv->pt_buttons = SYN_CAP_EXT_BUTTON_STICK_L(hw->ext_buttons)      |
+			   SYN_CAP_EXT_BUTTON_STICK_R(hw->ext_buttons) << 1 |
+			   SYN_CAP_EXT_BUTTON_STICK_M(hw->ext_buttons) << 2;
+
+	synaptics_pass_pt_packet(psmouse, priv->pt_port, buf);
+}
+
 static void synaptics_report_buttons(struct psmouse *psmouse,
 				     const struct synaptics_hw_state *hw)
 {
 	struct input_dev *dev = psmouse->dev;
 	struct synaptics_data *priv = psmouse->private;
-	int i;
 
 	input_report_key(dev, BTN_LEFT, hw->left);
 	input_report_key(dev, BTN_RIGHT, hw->right);
@@ -792,8 +897,7 @@ static void synaptics_report_buttons(struct psmouse *psmouse,
 		input_report_key(dev, BTN_BACK, hw->down);
 	}
 
-	for (i = 0; i < SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap); i++)
-		input_report_key(dev, BTN_0 + i, hw->ext_buttons & (1 << i));
+	synaptics_report_ext_buttons(psmouse, hw);
 }
 
 static void synaptics_report_mt_data(struct psmouse *psmouse,
@@ -813,7 +917,7 @@ static void synaptics_report_mt_data(struct psmouse *psmouse,
 		pos[i].y = synaptics_invert_y(hw[i]->y);
 	}
 
-	input_mt_assign_slots(dev, slot, pos, nsemi, DMAX * priv->x_res);
+	input_mt_assign_slots(dev, slot, pos, nsemi, 0);
 
 	for (i = 0; i < nsemi; i++) {
 		input_mt_slot(dev, slot[i]);
@@ -1014,7 +1118,8 @@ static psmouse_ret_t synaptics_process_byte(struct psmouse *psmouse)
 		if (SYN_CAP_PASS_THROUGH(priv->capabilities) &&
 		    synaptics_is_pt_packet(psmouse->packet)) {
 			if (priv->pt_port)
-				synaptics_pass_pt_packet(priv->pt_port, psmouse->packet);
+				synaptics_pass_pt_packet(psmouse, priv->pt_port,
+							 psmouse->packet);
 		} else
 			synaptics_process_packet(psmouse);
 
@@ -1116,8 +1221,9 @@ static void set_input_params(struct psmouse *psmouse,
 		__set_bit(BTN_BACK, dev->keybit);
 	}
 
-	for (i = 0; i < SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap); i++)
-		__set_bit(BTN_0 + i, dev->keybit);
+	if (!SYN_CAP_EXT_BUTTONS_STICK(priv->ext_cap_10))
+		for (i = 0; i < SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap); i++)
+			__set_bit(BTN_0 + i, dev->keybit);
 
 	__clear_bit(EV_REL, dev->evbit);
 	__clear_bit(REL_X, dev->relbit);
@@ -1125,7 +1231,8 @@ static void set_input_params(struct psmouse *psmouse,
 
 	if (SYN_CAP_CLICKPAD(priv->ext_cap_0c)) {
 		__set_bit(INPUT_PROP_BUTTONPAD, dev->propbit);
-		if (psmouse_matches_pnp_id(psmouse, topbuttonpad_pnp_ids))
+		if (psmouse_matches_pnp_id(psmouse, topbuttonpad_pnp_ids) &&
+		    !SYN_CAP_EXT_BUTTONS_STICK(priv->ext_cap_10))
 			__set_bit(INPUT_PROP_TOPBUTTONPAD, dev->propbit);
 		/* Clickpads report only left button */
 		__clear_bit(BTN_RIGHT, dev->keybit);
diff --git a/drivers/input/mouse/synaptics.h b/drivers/input/mouse/synaptics.h
index aedc329..ee4bd0d1 100644
--- a/drivers/input/mouse/synaptics.h
+++ b/drivers/input/mouse/synaptics.h
@@ -22,6 +22,7 @@
 #define SYN_QUE_EXT_CAPAB_0C		0x0c
 #define SYN_QUE_EXT_MAX_COORDS		0x0d
 #define SYN_QUE_EXT_MIN_COORDS		0x0f
+#define SYN_QUE_MEXT_CAPAB_10		0x10
 
 /* synatics modes */
 #define SYN_BIT_ABSOLUTE_MODE		(1 << 7)
@@ -53,6 +54,7 @@
 #define SYN_EXT_CAP_REQUESTS(c)		(((c) & 0x700000) >> 20)
 #define SYN_CAP_MULTI_BUTTON_NO(ec)	(((ec) & 0x00f000) >> 12)
 #define SYN_CAP_PRODUCT_ID(ec)		(((ec) & 0xff0000) >> 16)
+#define SYN_MEXT_CAP_BIT(m)		((m) & (1 << 1))
 
 /*
  * The following describes response for the 0x0c query.
@@ -89,6 +91,30 @@
 #define SYN_CAP_REDUCED_FILTERING(ex0c)	((ex0c) & 0x000400)
 #define SYN_CAP_IMAGE_SENSOR(ex0c)	((ex0c) & 0x000800)
 
+/*
+ * The following descibes response for the 0x10 query.
+ *
+ * byte	mask	name			meaning
+ * ----	----	-------			------------
+ * 1	0x01	ext buttons are stick	buttons exported in the extended
+ *					capability are actually meant to be used
+ *					by the tracktick (pass-through).
+ * 1	0x02	SecurePad		the touchpad is a SecurePad, so it
+ *					contains a built-in fingerprint reader.
+ * 1	0xe0	more ext count		how many more extented queries are
+ *					available after this one.
+ * 2	0xff	SecurePad width		the width of the SecurePad fingerprint
+ *					reader.
+ * 3	0xff	SecurePad height	the height of the SecurePad fingerprint
+ *					reader.
+ */
+#define SYN_CAP_EXT_BUTTONS_STICK(ex10)	((ex10) & 0x010000)
+#define SYN_CAP_SECUREPAD(ex10)		((ex10) & 0x020000)
+
+#define SYN_CAP_EXT_BUTTON_STICK_L(eb)	(!!((eb) & 0x01))
+#define SYN_CAP_EXT_BUTTON_STICK_M(eb)	(!!((eb) & 0x02))
+#define SYN_CAP_EXT_BUTTON_STICK_R(eb)	(!!((eb) & 0x04))
+
 /* synaptics modes query bits */
 #define SYN_MODE_ABSOLUTE(m)		((m) & (1 << 7))
 #define SYN_MODE_RATE(m)		((m) & (1 << 6))
@@ -143,6 +169,7 @@ struct synaptics_data {
 	unsigned long int capabilities;		/* Capabilities */
 	unsigned long int ext_cap;		/* Extended Capabilities */
 	unsigned long int ext_cap_0c;		/* Ext Caps from 0x0c query */
+	unsigned long int ext_cap_10;		/* Ext Caps from 0x10 query */
 	unsigned long int identity;		/* Identification */
 	unsigned int x_res, y_res;		/* X/Y resolution in units/mm */
 	unsigned int x_max, y_max;		/* Max coordinates (from FW) */
@@ -156,6 +183,7 @@ struct synaptics_data {
 	bool disable_gesture;			/* disable gestures */
 
 	struct serio *pt_port;			/* Pass-through serio port */
+	unsigned char pt_buttons;		/* Pass-through buttons */
 
 	/*
 	 * Last received Advanced Gesture Mode (AGM) packet. An AGM packet
diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig
index 5891752..6261fd6 100644
--- a/drivers/input/touchscreen/Kconfig
+++ b/drivers/input/touchscreen/Kconfig
@@ -943,6 +943,7 @@ config TOUCHSCREEN_SUN4I
 	tristate "Allwinner sun4i resistive touchscreen controller support"
 	depends on ARCH_SUNXI || COMPILE_TEST
 	depends on HWMON
+	depends on THERMAL || !THERMAL_OF
 	help
 	  This selects support for the resistive touchscreen controller
 	  found on Allwinner sunxi SoCs.
diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig
index baa0d97..1ae4e54 100644
--- a/drivers/iommu/Kconfig
+++ b/drivers/iommu/Kconfig
@@ -23,6 +23,7 @@ config IOMMU_IO_PGTABLE
 config IOMMU_IO_PGTABLE_LPAE
 	bool "ARMv7/v8 Long Descriptor Format"
 	select IOMMU_IO_PGTABLE
+	depends on ARM || ARM64 || COMPILE_TEST
 	help
 	  Enable support for the ARM long descriptor pagetable format.
 	  This allocator supports 4K/2M/1G, 16K/32M and 64K/512M page
@@ -63,6 +64,7 @@ config MSM_IOMMU
 	bool "MSM IOMMU Support"
 	depends on ARM
 	depends on ARCH_MSM8X60 || ARCH_MSM8960 || COMPILE_TEST
+	depends on BROKEN
 	select IOMMU_API
 	help
 	  Support for the IOMMUs found on certain Qualcomm SOCs.
diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c
index fc13dd5..a3adde6 100644
--- a/drivers/iommu/arm-smmu.c
+++ b/drivers/iommu/arm-smmu.c
@@ -1288,10 +1288,13 @@ static phys_addr_t arm_smmu_iova_to_phys(struct iommu_domain *domain,
 		return 0;
 
 	spin_lock_irqsave(&smmu_domain->pgtbl_lock, flags);
-	if (smmu_domain->smmu->features & ARM_SMMU_FEAT_TRANS_OPS)
+	if (smmu_domain->smmu->features & ARM_SMMU_FEAT_TRANS_OPS &&
+			smmu_domain->stage == ARM_SMMU_DOMAIN_S1) {
 		ret = arm_smmu_iova_to_phys_hard(domain, iova);
-	else
+	} else {
 		ret = ops->iova_to_phys(ops, iova);
+	}
+
 	spin_unlock_irqrestore(&smmu_domain->pgtbl_lock, flags);
 
 	return ret;
@@ -1556,7 +1559,7 @@ static int arm_smmu_device_cfg_probe(struct arm_smmu_device *smmu)
 		return -ENODEV;
 	}
 
-	if (smmu->version == 1 || (!(id & ID0_ATOSNS) && (id & ID0_S1TS))) {
+	if ((id & ID0_S1TS) && ((smmu->version == 1) || (id & ID0_ATOSNS))) {
 		smmu->features |= ARM_SMMU_FEAT_TRANS_OPS;
 		dev_notice(smmu->dev, "\taddress translation ops\n");
 	}
diff --git a/drivers/iommu/exynos-iommu.c b/drivers/iommu/exynos-iommu.c
index 7ce5273..dc14fec4 100644
--- a/drivers/iommu/exynos-iommu.c
+++ b/drivers/iommu/exynos-iommu.c
@@ -1186,8 +1186,15 @@ static const struct iommu_ops exynos_iommu_ops = {
 
 static int __init exynos_iommu_init(void)
 {
+	struct device_node *np;
 	int ret;
 
+	np = of_find_matching_node(NULL, sysmmu_of_match);
+	if (!np)
+		return 0;
+
+	of_node_put(np);
+
 	lv2table_kmem_cache = kmem_cache_create("exynos-iommu-lv2table",
 				LV2TABLE_SIZE, LV2TABLE_SIZE, 0, NULL);
 	if (!lv2table_kmem_cache) {
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index ae4c1a8..2d1e05b 100644
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -1742,9 +1742,8 @@ static int domain_init(struct dmar_domain *domain, int guest_width)
 
 static void domain_exit(struct dmar_domain *domain)
 {
-	struct dmar_drhd_unit *drhd;
-	struct intel_iommu *iommu;
 	struct page *freelist = NULL;
+	int i;
 
 	/* Domain 0 is reserved, so dont process it */
 	if (!domain)
@@ -1764,8 +1763,8 @@ static void domain_exit(struct dmar_domain *domain)
 
 	/* clear attached or cached domains */
 	rcu_read_lock();
-	for_each_active_iommu(iommu, drhd)
-		iommu_detach_domain(domain, iommu);
+	for_each_set_bit(i, domain->iommu_bmp, g_num_of_iommus)
+		iommu_detach_domain(domain, g_iommus[i]);
 	rcu_read_unlock();
 
 	dma_free_pagelist(freelist);
diff --git a/drivers/iommu/io-pgtable-arm.c b/drivers/iommu/io-pgtable-arm.c
index 5a500ed..b610a8d 100644
--- a/drivers/iommu/io-pgtable-arm.c
+++ b/drivers/iommu/io-pgtable-arm.c
@@ -56,7 +56,8 @@
 	((((d)->levels - ((l) - ARM_LPAE_START_LVL(d) + 1))		\
 	  * (d)->bits_per_level) + (d)->pg_shift)
 
-#define ARM_LPAE_PAGES_PER_PGD(d)	((d)->pgd_size >> (d)->pg_shift)
+#define ARM_LPAE_PAGES_PER_PGD(d)					\
+	DIV_ROUND_UP((d)->pgd_size, 1UL << (d)->pg_shift)
 
 /*
  * Calculate the index at level l used to map virtual address a using the
@@ -66,7 +67,7 @@
 	((l) == ARM_LPAE_START_LVL(d) ? ilog2(ARM_LPAE_PAGES_PER_PGD(d)) : 0)
 
 #define ARM_LPAE_LVL_IDX(a,l,d)						\
-	(((a) >> ARM_LPAE_LVL_SHIFT(l,d)) &				\
+	(((u64)(a) >> ARM_LPAE_LVL_SHIFT(l,d)) &			\
 	 ((1 << ((d)->bits_per_level + ARM_LPAE_PGD_IDX(l,d))) - 1))
 
 /* Calculate the block/page mapping size at level l for pagetable in d. */
diff --git a/drivers/iommu/ipmmu-vmsa.c b/drivers/iommu/ipmmu-vmsa.c
index 10186ca..bc39bdf 100644
--- a/drivers/iommu/ipmmu-vmsa.c
+++ b/drivers/iommu/ipmmu-vmsa.c
@@ -851,6 +851,7 @@ static int ipmmu_remove(struct platform_device *pdev)
 
 static const struct of_device_id ipmmu_of_ids[] = {
 	{ .compatible = "renesas,ipmmu-vmsa", },
+	{ }
 };
 
 static struct platform_driver ipmmu_driver = {
diff --git a/drivers/iommu/of_iommu.c b/drivers/iommu/of_iommu.c
index af1dc6a..43429ab 100644
--- a/drivers/iommu/of_iommu.c
+++ b/drivers/iommu/of_iommu.c
@@ -133,19 +133,25 @@ struct iommu_ops *of_iommu_get_ops(struct device_node *np)
 	return ops;
 }
 
-struct iommu_ops *of_iommu_configure(struct device *dev)
+struct iommu_ops *of_iommu_configure(struct device *dev,
+				     struct device_node *master_np)
 {
 	struct of_phandle_args iommu_spec;
 	struct device_node *np;
 	struct iommu_ops *ops = NULL;
 	int idx = 0;
 
+	if (dev_is_pci(dev)) {
+		dev_err(dev, "IOMMU is currently not supported for PCI\n");
+		return NULL;
+	}
+
 	/*
 	 * We don't currently walk up the tree looking for a parent IOMMU.
 	 * See the `Notes:' section of
 	 * Documentation/devicetree/bindings/iommu/iommu.txt
 	 */
-	while (!of_parse_phandle_with_args(dev->of_node, "iommus",
+	while (!of_parse_phandle_with_args(master_np, "iommus",
 					   "#iommu-cells", idx,
 					   &iommu_spec)) {
 		np = iommu_spec.np;
diff --git a/drivers/iommu/omap-iommu.c b/drivers/iommu/omap-iommu.c
index f59f857..a4ba851 100644
--- a/drivers/iommu/omap-iommu.c
+++ b/drivers/iommu/omap-iommu.c
@@ -1376,6 +1376,13 @@ static int __init omap_iommu_init(void)
 	struct kmem_cache *p;
 	const unsigned long flags = SLAB_HWCACHE_ALIGN;
 	size_t align = 1 << 10; /* L2 pagetable alignement */
+	struct device_node *np;
+
+	np = of_find_matching_node(NULL, omap_iommu_of_match);
+	if (!np)
+		return 0;
+
+	of_node_put(np);
 
 	p = kmem_cache_create("iopte_cache", IOPTE_TABLE_SIZE, align, flags,
 			      iopte_cachep_ctor);
diff --git a/drivers/iommu/rockchip-iommu.c b/drivers/iommu/rockchip-iommu.c
index 6a8b1ec..9f74fdd 100644
--- a/drivers/iommu/rockchip-iommu.c
+++ b/drivers/iommu/rockchip-iommu.c
@@ -1015,8 +1015,15 @@ static struct platform_driver rk_iommu_driver = {
 
 static int __init rk_iommu_init(void)
 {
+	struct device_node *np;
 	int ret;
 
+	np = of_find_matching_node(NULL, rk_iommu_dt_ids);
+	if (!np)
+		return 0;
+
+	of_node_put(np);
+
 	ret = bus_set_iommu(&platform_bus_type, &rk_iommu_ops);
 	if (ret)
 		return ret;
diff --git a/drivers/irqchip/Kconfig b/drivers/irqchip/Kconfig
index cc79d2a..c8d260e 100644
--- a/drivers/irqchip/Kconfig
+++ b/drivers/irqchip/Kconfig
@@ -110,6 +110,13 @@ config RENESAS_IRQC
 	bool
 	select IRQ_DOMAIN
 
+config ST_IRQCHIP
+	bool
+	select REGMAP
+	select MFD_SYSCON
+	help
+	  Enables SysCfg Controlled IRQs on STi based platforms.
+
 config TB10X_IRQC
 	bool
 	select IRQ_DOMAIN
diff --git a/drivers/irqchip/Makefile b/drivers/irqchip/Makefile
index 42965d2..552a740 100644
--- a/drivers/irqchip/Makefile
+++ b/drivers/irqchip/Makefile
@@ -6,6 +6,7 @@ obj-$(CONFIG_ARCH_HIP04)		+= irq-hip04.o
 obj-$(CONFIG_ARCH_MMP)			+= irq-mmp.o
 obj-$(CONFIG_ARCH_MVEBU)		+= irq-armada-370-xp.o
 obj-$(CONFIG_ARCH_MXS)			+= irq-mxs.o
+obj-$(CONFIG_ARCH_TEGRA)		+= irq-tegra.o
 obj-$(CONFIG_ARCH_S3C24XX)		+= irq-s3c24xx.o
 obj-$(CONFIG_DW_APB_ICTL)		+= irq-dw-apb-ictl.o
 obj-$(CONFIG_METAG)			+= irq-metag-ext.o
@@ -33,10 +34,12 @@ obj-$(CONFIG_RENESAS_IRQC)		+= irq-renesas-irqc.o
 obj-$(CONFIG_VERSATILE_FPGA_IRQ)	+= irq-versatile-fpga.o
 obj-$(CONFIG_ARCH_NSPIRE)		+= irq-zevio.o
 obj-$(CONFIG_ARCH_VT8500)		+= irq-vt8500.o
+obj-$(CONFIG_ST_IRQCHIP)		+= irq-st.o
 obj-$(CONFIG_TB10X_IRQC)		+= irq-tb10x.o
 obj-$(CONFIG_XTENSA)			+= irq-xtensa-pic.o
 obj-$(CONFIG_XTENSA_MX)			+= irq-xtensa-mx.o
 obj-$(CONFIG_IRQ_CROSSBAR)		+= irq-crossbar.o
+obj-$(CONFIG_SOC_VF610)			+= irq-vf610-mscm-ir.o
 obj-$(CONFIG_BCM7120_L2_IRQ)		+= irq-bcm7120-l2.o
 obj-$(CONFIG_BRCMSTB_L2_IRQ)		+= irq-brcmstb-l2.o
 obj-$(CONFIG_KEYSTONE_IRQ)		+= irq-keystone.o
diff --git a/drivers/irqchip/irq-armada-370-xp.c b/drivers/irqchip/irq-armada-370-xp.c
index 463c235..daccc8b 100644
--- a/drivers/irqchip/irq-armada-370-xp.c
+++ b/drivers/irqchip/irq-armada-370-xp.c
@@ -38,6 +38,8 @@
 /* Interrupt Controller Registers Map */
 #define ARMADA_370_XP_INT_SET_MASK_OFFS		(0x48)
 #define ARMADA_370_XP_INT_CLEAR_MASK_OFFS	(0x4C)
+#define ARMADA_370_XP_INT_FABRIC_MASK_OFFS	(0x54)
+#define ARMADA_370_XP_INT_CAUSE_PERF(cpu)	(1 << cpu)
 
 #define ARMADA_370_XP_INT_CONTROL		(0x00)
 #define ARMADA_370_XP_INT_SET_ENABLE_OFFS	(0x30)
@@ -56,6 +58,7 @@
 #define ARMADA_370_XP_MAX_PER_CPU_IRQS		(28)
 
 #define ARMADA_370_XP_TIMER0_PER_CPU_IRQ	(5)
+#define ARMADA_370_XP_FABRIC_IRQ		(3)
 
 #define IPI_DOORBELL_START                      (0)
 #define IPI_DOORBELL_END                        (8)
@@ -69,6 +72,7 @@ static void __iomem *per_cpu_int_base;
 static void __iomem *main_int_base;
 static struct irq_domain *armada_370_xp_mpic_domain;
 static u32 doorbell_mask_reg;
+static int parent_irq;
 #ifdef CONFIG_PCI_MSI
 static struct irq_domain *armada_370_xp_msi_domain;
 static DECLARE_BITMAP(msi_used, PCI_MSI_DOORBELL_NR);
@@ -76,6 +80,17 @@ static DEFINE_MUTEX(msi_used_lock);
 static phys_addr_t msi_doorbell_addr;
 #endif
 
+static inline bool is_percpu_irq(irq_hw_number_t irq)
+{
+	switch (irq) {
+	case ARMADA_370_XP_TIMER0_PER_CPU_IRQ:
+	case ARMADA_370_XP_FABRIC_IRQ:
+		return true;
+	default:
+		return false;
+	}
+}
+
 /*
  * In SMP mode:
  * For shared global interrupts, mask/unmask global enable bit
@@ -85,7 +100,7 @@ static void armada_370_xp_irq_mask(struct irq_data *d)
 {
 	irq_hw_number_t hwirq = irqd_to_hwirq(d);
 
-	if (hwirq != ARMADA_370_XP_TIMER0_PER_CPU_IRQ)
+	if (!is_percpu_irq(hwirq))
 		writel(hwirq, main_int_base +
 				ARMADA_370_XP_INT_CLEAR_ENABLE_OFFS);
 	else
@@ -97,7 +112,7 @@ static void armada_370_xp_irq_unmask(struct irq_data *d)
 {
 	irq_hw_number_t hwirq = irqd_to_hwirq(d);
 
-	if (hwirq != ARMADA_370_XP_TIMER0_PER_CPU_IRQ)
+	if (!is_percpu_irq(hwirq))
 		writel(hwirq, main_int_base +
 				ARMADA_370_XP_INT_SET_ENABLE_OFFS);
 	else
@@ -280,20 +295,21 @@ static struct irq_chip armada_370_xp_irq_chip = {
 #ifdef CONFIG_SMP
 	.irq_set_affinity = armada_xp_set_affinity,
 #endif
+	.flags		= IRQCHIP_SKIP_SET_WAKE | IRQCHIP_MASK_ON_SUSPEND,
 };
 
 static int armada_370_xp_mpic_irq_map(struct irq_domain *h,
 				      unsigned int virq, irq_hw_number_t hw)
 {
 	armada_370_xp_irq_mask(irq_get_irq_data(virq));
-	if (hw != ARMADA_370_XP_TIMER0_PER_CPU_IRQ)
+	if (!is_percpu_irq(hw))
 		writel(hw, per_cpu_int_base +
 			ARMADA_370_XP_INT_CLEAR_MASK_OFFS);
 	else
 		writel(hw, main_int_base + ARMADA_370_XP_INT_SET_ENABLE_OFFS);
 	irq_set_status_flags(virq, IRQ_LEVEL);
 
-	if (hw == ARMADA_370_XP_TIMER0_PER_CPU_IRQ) {
+	if (is_percpu_irq(hw)) {
 		irq_set_percpu_devid(virq);
 		irq_set_chip_and_handler(virq, &armada_370_xp_irq_chip,
 					handle_percpu_devid_irq);
@@ -307,28 +323,6 @@ static int armada_370_xp_mpic_irq_map(struct irq_domain *h,
 	return 0;
 }
 
-#ifdef CONFIG_SMP
-static void armada_mpic_send_doorbell(const struct cpumask *mask,
-				      unsigned int irq)
-{
-	int cpu;
-	unsigned long map = 0;
-
-	/* Convert our logical CPU mask into a physical one. */
-	for_each_cpu(cpu, mask)
-		map |= 1 << cpu_logical_map(cpu);
-
-	/*
-	 * Ensure that stores to Normal memory are visible to the
-	 * other CPUs before issuing the IPI.
-	 */
-	dsb();
-
-	/* submit softirq */
-	writel((map << 8) | irq, main_int_base +
-		ARMADA_370_XP_SW_TRIG_INT_OFFS);
-}
-
 static void armada_xp_mpic_smp_cpu_init(void)
 {
 	u32 control;
@@ -351,11 +345,45 @@ static void armada_xp_mpic_smp_cpu_init(void)
 	writel(0, per_cpu_int_base + ARMADA_370_XP_INT_CLEAR_MASK_OFFS);
 }
 
+static void armada_xp_mpic_perf_init(void)
+{
+	unsigned long cpuid = cpu_logical_map(smp_processor_id());
+
+	/* Enable Performance Counter Overflow interrupts */
+	writel(ARMADA_370_XP_INT_CAUSE_PERF(cpuid),
+	       per_cpu_int_base + ARMADA_370_XP_INT_FABRIC_MASK_OFFS);
+}
+
+#ifdef CONFIG_SMP
+static void armada_mpic_send_doorbell(const struct cpumask *mask,
+				      unsigned int irq)
+{
+	int cpu;
+	unsigned long map = 0;
+
+	/* Convert our logical CPU mask into a physical one. */
+	for_each_cpu(cpu, mask)
+		map |= 1 << cpu_logical_map(cpu);
+
+	/*
+	 * Ensure that stores to Normal memory are visible to the
+	 * other CPUs before issuing the IPI.
+	 */
+	dsb();
+
+	/* submit softirq */
+	writel((map << 8) | irq, main_int_base +
+		ARMADA_370_XP_SW_TRIG_INT_OFFS);
+}
+
 static int armada_xp_mpic_secondary_init(struct notifier_block *nfb,
 					 unsigned long action, void *hcpu)
 {
-	if (action == CPU_STARTING || action == CPU_STARTING_FROZEN)
+	if (action == CPU_STARTING || action == CPU_STARTING_FROZEN) {
+		armada_xp_mpic_perf_init();
 		armada_xp_mpic_smp_cpu_init();
+	}
+
 	return NOTIFY_OK;
 }
 
@@ -364,6 +392,21 @@ static struct notifier_block armada_370_xp_mpic_cpu_notifier = {
 	.priority = 100,
 };
 
+static int mpic_cascaded_secondary_init(struct notifier_block *nfb,
+					unsigned long action, void *hcpu)
+{
+	if (action == CPU_STARTING || action == CPU_STARTING_FROZEN) {
+		armada_xp_mpic_perf_init();
+		enable_percpu_irq(parent_irq, IRQ_TYPE_NONE);
+	}
+
+	return NOTIFY_OK;
+}
+
+static struct notifier_block mpic_cascaded_cpu_notifier = {
+	.notifier_call = mpic_cascaded_secondary_init,
+	.priority = 100,
+};
 #endif /* CONFIG_SMP */
 
 static struct irq_domain_ops armada_370_xp_mpic_irq_ops = {
@@ -539,7 +582,7 @@ static int __init armada_370_xp_mpic_of_init(struct device_node *node,
 					     struct device_node *parent)
 {
 	struct resource main_int_res, per_cpu_int_res;
-	int parent_irq, nr_irqs, i;
+	int nr_irqs, i;
 	u32 control;
 
 	BUG_ON(of_address_to_resource(node, 0, &main_int_res));
@@ -572,9 +615,9 @@ static int __init armada_370_xp_mpic_of_init(struct device_node *node,
 
 	BUG_ON(!armada_370_xp_mpic_domain);
 
-#ifdef CONFIG_SMP
+	/* Setup for the boot CPU */
+	armada_xp_mpic_perf_init();
 	armada_xp_mpic_smp_cpu_init();
-#endif
 
 	armada_370_xp_msi_init(node, main_int_res.start);
 
@@ -587,6 +630,9 @@ static int __init armada_370_xp_mpic_of_init(struct device_node *node,
 		register_cpu_notifier(&armada_370_xp_mpic_cpu_notifier);
 #endif
 	} else {
+#ifdef CONFIG_SMP
+		register_cpu_notifier(&mpic_cascaded_cpu_notifier);
+#endif
 		irq_set_chained_handler(parent_irq,
 					armada_370_xp_mpic_handle_cascade_irq);
 	}
diff --git a/drivers/irqchip/irq-crossbar.c b/drivers/irqchip/irq-crossbar.c
index bbbaf5d..692fe2b 100644
--- a/drivers/irqchip/irq-crossbar.c
+++ b/drivers/irqchip/irq-crossbar.c
@@ -11,11 +11,12 @@
  */
 #include <linux/err.h>
 #include <linux/io.h>
+#include <linux/irqdomain.h>
 #include <linux/of_address.h>
 #include <linux/of_irq.h>
 #include <linux/slab.h>
-#include <linux/irqchip/arm-gic.h>
-#include <linux/irqchip/irq-crossbar.h>
+
+#include "irqchip.h"
 
 #define IRQ_FREE	-1
 #define IRQ_RESERVED	-2
@@ -24,6 +25,7 @@
 
 /**
  * struct crossbar_device - crossbar device description
+ * @lock: spinlock serializing access to @irq_map
  * @int_max: maximum number of supported interrupts
  * @safe_map: safe default value to initialize the crossbar
  * @max_crossbar_sources: Maximum number of crossbar sources
@@ -33,6 +35,7 @@
  * @write: register write function pointer
  */
 struct crossbar_device {
+	raw_spinlock_t lock;
 	uint int_max;
 	uint safe_map;
 	uint max_crossbar_sources;
@@ -44,72 +47,101 @@ struct crossbar_device {
 
 static struct crossbar_device *cb;
 
-static inline void crossbar_writel(int irq_no, int cb_no)
+static void crossbar_writel(int irq_no, int cb_no)
 {
 	writel(cb_no, cb->crossbar_base + cb->register_offsets[irq_no]);
 }
 
-static inline void crossbar_writew(int irq_no, int cb_no)
+static void crossbar_writew(int irq_no, int cb_no)
 {
 	writew(cb_no, cb->crossbar_base + cb->register_offsets[irq_no]);
 }
 
-static inline void crossbar_writeb(int irq_no, int cb_no)
+static void crossbar_writeb(int irq_no, int cb_no)
 {
 	writeb(cb_no, cb->crossbar_base + cb->register_offsets[irq_no]);
 }
 
-static inline int get_prev_map_irq(int cb_no)
-{
-	int i;
-
-	for (i = cb->int_max - 1; i >= 0; i--)
-		if (cb->irq_map[i] == cb_no)
-			return i;
-
-	return -ENODEV;
-}
+static struct irq_chip crossbar_chip = {
+	.name			= "CBAR",
+	.irq_eoi		= irq_chip_eoi_parent,
+	.irq_mask		= irq_chip_mask_parent,
+	.irq_unmask		= irq_chip_unmask_parent,
+	.irq_retrigger		= irq_chip_retrigger_hierarchy,
+	.irq_set_wake		= irq_chip_set_wake_parent,
+#ifdef CONFIG_SMP
+	.irq_set_affinity	= irq_chip_set_affinity_parent,
+#endif
+};
 
-static inline int allocate_free_irq(int cb_no)
+static int allocate_gic_irq(struct irq_domain *domain, unsigned virq,
+			    irq_hw_number_t hwirq)
 {
+	struct of_phandle_args args;
 	int i;
+	int err;
 
+	raw_spin_lock(&cb->lock);
 	for (i = cb->int_max - 1; i >= 0; i--) {
 		if (cb->irq_map[i] == IRQ_FREE) {
-			cb->irq_map[i] = cb_no;
-			return i;
+			cb->irq_map[i] = hwirq;
+			break;
 		}
 	}
+	raw_spin_unlock(&cb->lock);
 
-	return -ENODEV;
-}
+	if (i < 0)
+		return -ENODEV;
 
-static inline bool needs_crossbar_write(irq_hw_number_t hw)
-{
-	int cb_no;
+	args.np = domain->parent->of_node;
+	args.args_count = 3;
+	args.args[0] = 0;	/* SPI */
+	args.args[1] = i;
+	args.args[2] = IRQ_TYPE_LEVEL_HIGH;
 
-	if (hw > GIC_IRQ_START) {
-		cb_no = cb->irq_map[hw - GIC_IRQ_START];
-		if (cb_no != IRQ_RESERVED && cb_no != IRQ_SKIP)
-			return true;
-	}
+	err = irq_domain_alloc_irqs_parent(domain, virq, 1, &args);
+	if (err)
+		cb->irq_map[i] = IRQ_FREE;
+	else
+		cb->write(i, hwirq);
 
-	return false;
+	return err;
 }
 
-static int crossbar_domain_map(struct irq_domain *d, unsigned int irq,
-			       irq_hw_number_t hw)
+static int crossbar_domain_alloc(struct irq_domain *d, unsigned int virq,
+				 unsigned int nr_irqs, void *data)
 {
-	if (needs_crossbar_write(hw))
-		cb->write(hw - GIC_IRQ_START, cb->irq_map[hw - GIC_IRQ_START]);
+	struct of_phandle_args *args = data;
+	irq_hw_number_t hwirq;
+	int i;
+
+	if (args->args_count != 3)
+		return -EINVAL;	/* Not GIC compliant */
+	if (args->args[0] != 0)
+		return -EINVAL;	/* No PPI should point to this domain */
+
+	hwirq = args->args[1];
+	if ((hwirq + nr_irqs) > cb->max_crossbar_sources)
+		return -EINVAL;	/* Can't deal with this */
+
+	for (i = 0; i < nr_irqs; i++) {
+		int err = allocate_gic_irq(d, virq + i, hwirq + i);
+
+		if (err)
+			return err;
+
+		irq_domain_set_hwirq_and_chip(d, virq + i, hwirq + i,
+					      &crossbar_chip, NULL);
+	}
 
 	return 0;
 }
 
 /**
- * crossbar_domain_unmap - unmap a crossbar<->irq connection
- * @d: domain of irq to unmap
- * @irq: virq number
+ * crossbar_domain_free - unmap/free a crossbar<->irq connection
+ * @domain: domain of irq to unmap
+ * @virq: virq number
+ * @nr_irqs: number of irqs to free
  *
  * We do not maintain a use count of total number of map/unmap
  * calls for a particular irq to find out if a irq can be really
@@ -117,14 +149,20 @@ static int crossbar_domain_map(struct irq_domain *d, unsigned int irq,
  * after which irq is anyways unusable. So an explicit map has to be called
  * after that.
  */
-static void crossbar_domain_unmap(struct irq_domain *d, unsigned int irq)
+static void crossbar_domain_free(struct irq_domain *domain, unsigned int virq,
+				 unsigned int nr_irqs)
 {
-	irq_hw_number_t hw = irq_get_irq_data(irq)->hwirq;
+	int i;
 
-	if (needs_crossbar_write(hw)) {
-		cb->irq_map[hw - GIC_IRQ_START] = IRQ_FREE;
-		cb->write(hw - GIC_IRQ_START, cb->safe_map);
+	raw_spin_lock(&cb->lock);
+	for (i = 0; i < nr_irqs; i++) {
+		struct irq_data *d = irq_domain_get_irq_data(domain, virq + i);
+
+		irq_domain_reset_irq_data(d);
+		cb->irq_map[d->hwirq] = IRQ_FREE;
+		cb->write(d->hwirq, cb->safe_map);
 	}
+	raw_spin_unlock(&cb->lock);
 }
 
 static int crossbar_domain_xlate(struct irq_domain *d,
@@ -133,44 +171,22 @@ static int crossbar_domain_xlate(struct irq_domain *d,
 				 unsigned long *out_hwirq,
 				 unsigned int *out_type)
 {
-	int ret;
-	int req_num = intspec[1];
-	int direct_map_num;
-
-	if (req_num >= cb->max_crossbar_sources) {
-		direct_map_num = req_num - cb->max_crossbar_sources;
-		if (direct_map_num < cb->int_max) {
-			ret = cb->irq_map[direct_map_num];
-			if (ret == IRQ_RESERVED || ret == IRQ_SKIP) {
-				/* We use the interrupt num as h/w irq num */
-				ret = direct_map_num;
-				goto found;
-			}
-		}
-
-		pr_err("%s: requested crossbar number %d > max %d\n",
-		       __func__, req_num, cb->max_crossbar_sources);
-		return -EINVAL;
-	}
-
-	ret = get_prev_map_irq(req_num);
-	if (ret >= 0)
-		goto found;
-
-	ret = allocate_free_irq(req_num);
-
-	if (ret < 0)
-		return ret;
-
-found:
-	*out_hwirq = ret + GIC_IRQ_START;
+	if (d->of_node != controller)
+		return -EINVAL;	/* Shouldn't happen, really... */
+	if (intsize != 3)
+		return -EINVAL;	/* Not GIC compliant */
+	if (intspec[0] != 0)
+		return -EINVAL;	/* No PPI should point to this domain */
+
+	*out_hwirq = intspec[1];
+	*out_type = intspec[2];
 	return 0;
 }
 
-static const struct irq_domain_ops routable_irq_domain_ops = {
-	.map = crossbar_domain_map,
-	.unmap = crossbar_domain_unmap,
-	.xlate = crossbar_domain_xlate
+static const struct irq_domain_ops crossbar_domain_ops = {
+	.alloc	= crossbar_domain_alloc,
+	.free	= crossbar_domain_free,
+	.xlate	= crossbar_domain_xlate,
 };
 
 static int __init crossbar_of_init(struct device_node *node)
@@ -293,7 +309,8 @@ static int __init crossbar_of_init(struct device_node *node)
 		cb->write(i, cb->safe_map);
 	}
 
-	register_routable_domain_ops(&routable_irq_domain_ops);
+	raw_spin_lock_init(&cb->lock);
+
 	return 0;
 
 err_reg_offset:
@@ -309,18 +326,37 @@ err_cb:
 	return ret;
 }
 
-static const struct of_device_id crossbar_match[] __initconst = {
-	{ .compatible = "ti,irq-crossbar" },
-	{}
-};
-
-int __init irqcrossbar_init(void)
+static int __init irqcrossbar_init(struct device_node *node,
+				   struct device_node *parent)
 {
-	struct device_node *np;
-	np = of_find_matching_node(NULL, crossbar_match);
-	if (!np)
+	struct irq_domain *parent_domain, *domain;
+	int err;
+
+	if (!parent) {
+		pr_err("%s: no parent, giving up\n", node->full_name);
 		return -ENODEV;
+	}
+
+	parent_domain = irq_find_host(parent);
+	if (!parent_domain) {
+		pr_err("%s: unable to obtain parent domain\n", node->full_name);
+		return -ENXIO;
+	}
+
+	err = crossbar_of_init(node);
+	if (err)
+		return err;
+
+	domain = irq_domain_add_hierarchy(parent_domain, 0,
+					  cb->max_crossbar_sources,
+					  node, &crossbar_domain_ops,
+					  NULL);
+	if (!domain) {
+		pr_err("%s: failed to allocated domain\n", node->full_name);
+		return -ENOMEM;
+	}
 
-	crossbar_of_init(np);
 	return 0;
 }
+
+IRQCHIP_DECLARE(ti_irqcrossbar, "ti,irq-crossbar", irqcrossbar_init);
diff --git a/drivers/irqchip/irq-digicolor.c b/drivers/irqchip/irq-digicolor.c
index 930a2a2..3cbc658 100644
--- a/drivers/irqchip/irq-digicolor.c
+++ b/drivers/irqchip/irq-digicolor.c
@@ -55,8 +55,8 @@ static void __exception_irq_entry digicolor_handle_irq(struct pt_regs *regs)
 	} while (1);
 }
 
-static void digicolor_set_gc(void __iomem *reg_base, unsigned irq_base,
-			     unsigned en_reg, unsigned ack_reg)
+static void __init digicolor_set_gc(void __iomem *reg_base, unsigned irq_base,
+				    unsigned en_reg, unsigned ack_reg)
 {
 	struct irq_chip_generic *gc;
 
diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c
index d8996bd..9687f8a 100644
--- a/drivers/irqchip/irq-gic-v3-its.c
+++ b/drivers/irqchip/irq-gic-v3-its.c
@@ -169,7 +169,7 @@ static void its_encode_cmd(struct its_cmd_block *cmd, u8 cmd_nr)
 
 static void its_encode_devid(struct its_cmd_block *cmd, u32 devid)
 {
-	cmd->raw_cmd[0] &= ~(0xffffUL << 32);
+	cmd->raw_cmd[0] &= BIT_ULL(32) - 1;
 	cmd->raw_cmd[0] |= ((u64)devid) << 32;
 }
 
@@ -416,13 +416,14 @@ static void its_send_single_command(struct its_node *its,
 {
 	struct its_cmd_block *cmd, *sync_cmd, *next_cmd;
 	struct its_collection *sync_col;
+	unsigned long flags;
 
-	raw_spin_lock(&its->lock);
+	raw_spin_lock_irqsave(&its->lock, flags);
 
 	cmd = its_allocate_entry(its);
 	if (!cmd) {		/* We're soooooo screewed... */
 		pr_err_ratelimited("ITS can't allocate, dropping command\n");
-		raw_spin_unlock(&its->lock);
+		raw_spin_unlock_irqrestore(&its->lock, flags);
 		return;
 	}
 	sync_col = builder(cmd, desc);
@@ -442,7 +443,7 @@ static void its_send_single_command(struct its_node *its,
 
 post:
 	next_cmd = its_post_commands(its);
-	raw_spin_unlock(&its->lock);
+	raw_spin_unlock_irqrestore(&its->lock, flags);
 
 	its_wait_for_range_completion(its, cmd, next_cmd);
 }
@@ -799,21 +800,44 @@ static int its_alloc_tables(struct its_node *its)
 {
 	int err;
 	int i;
-	int psz = PAGE_SIZE;
+	int psz = SZ_64K;
 	u64 shr = GITS_BASER_InnerShareable;
+	u64 cache = GITS_BASER_WaWb;
 
 	for (i = 0; i < GITS_BASER_NR_REGS; i++) {
 		u64 val = readq_relaxed(its->base + GITS_BASER + i * 8);
 		u64 type = GITS_BASER_TYPE(val);
 		u64 entry_size = GITS_BASER_ENTRY_SIZE(val);
+		int order = get_order(psz);
+		int alloc_size;
 		u64 tmp;
 		void *base;
 
 		if (type == GITS_BASER_TYPE_NONE)
 			continue;
 
-		/* We're lazy and only allocate a single page for now */
-		base = (void *)get_zeroed_page(GFP_KERNEL);
+		/*
+		 * Allocate as many entries as required to fit the
+		 * range of device IDs that the ITS can grok... The ID
+		 * space being incredibly sparse, this results in a
+		 * massive waste of memory.
+		 *
+		 * For other tables, only allocate a single page.
+		 */
+		if (type == GITS_BASER_TYPE_DEVICE) {
+			u64 typer = readq_relaxed(its->base + GITS_TYPER);
+			u32 ids = GITS_TYPER_DEVBITS(typer);
+
+			order = get_order((1UL << ids) * entry_size);
+			if (order >= MAX_ORDER) {
+				order = MAX_ORDER - 1;
+				pr_warn("%s: Device Table too large, reduce its page order to %u\n",
+					its->msi_chip.of_node->full_name, order);
+			}
+		}
+
+		alloc_size = (1 << order) * PAGE_SIZE;
+		base = (void *)__get_free_pages(GFP_KERNEL | __GFP_ZERO, order);
 		if (!base) {
 			err = -ENOMEM;
 			goto out_free;
@@ -825,7 +849,7 @@ retry_baser:
 		val = (virt_to_phys(base) 				 |
 		       (type << GITS_BASER_TYPE_SHIFT)			 |
 		       ((entry_size - 1) << GITS_BASER_ENTRY_SIZE_SHIFT) |
-		       GITS_BASER_WaWb					 |
+		       cache						 |
 		       shr						 |
 		       GITS_BASER_VALID);
 
@@ -841,7 +865,7 @@ retry_baser:
 			break;
 		}
 
-		val |= (PAGE_SIZE / psz) - 1;
+		val |= (alloc_size / psz) - 1;
 
 		writeq_relaxed(val, its->base + GITS_BASER + i * 8);
 		tmp = readq_relaxed(its->base + GITS_BASER + i * 8);
@@ -851,9 +875,12 @@ retry_baser:
 			 * Shareability didn't stick. Just use
 			 * whatever the read reported, which is likely
 			 * to be the only thing this redistributor
-			 * supports.
+			 * supports. If that's zero, make it
+			 * non-cacheable as well.
 			 */
 			shr = tmp & GITS_BASER_SHAREABILITY_MASK;
+			if (!shr)
+				cache = GITS_BASER_nC;
 			goto retry_baser;
 		}
 
@@ -882,7 +909,7 @@ retry_baser:
 		}
 
 		pr_info("ITS: allocated %d %s @%lx (psz %dK, shr %d)\n",
-			(int)(PAGE_SIZE / entry_size),
+			(int)(alloc_size / entry_size),
 			its_base_type_string[type],
 			(unsigned long)virt_to_phys(base),
 			psz / SZ_1K, (int)shr >> GITS_BASER_SHAREABILITY_SHIFT);
@@ -957,16 +984,39 @@ static void its_cpu_init_lpis(void)
 	tmp = readq_relaxed(rbase + GICR_PROPBASER);
 
 	if ((tmp ^ val) & GICR_PROPBASER_SHAREABILITY_MASK) {
+		if (!(tmp & GICR_PROPBASER_SHAREABILITY_MASK)) {
+			/*
+			 * The HW reports non-shareable, we must
+			 * remove the cacheability attributes as
+			 * well.
+			 */
+			val &= ~(GICR_PROPBASER_SHAREABILITY_MASK |
+				 GICR_PROPBASER_CACHEABILITY_MASK);
+			val |= GICR_PROPBASER_nC;
+			writeq_relaxed(val, rbase + GICR_PROPBASER);
+		}
 		pr_info_once("GIC: using cache flushing for LPI property table\n");
 		gic_rdists->flags |= RDIST_FLAGS_PROPBASE_NEEDS_FLUSHING;
 	}
 
 	/* set PENDBASE */
 	val = (page_to_phys(pend_page) |
-	       GICR_PROPBASER_InnerShareable |
-	       GICR_PROPBASER_WaWb);
+	       GICR_PENDBASER_InnerShareable |
+	       GICR_PENDBASER_WaWb);
 
 	writeq_relaxed(val, rbase + GICR_PENDBASER);
+	tmp = readq_relaxed(rbase + GICR_PENDBASER);
+
+	if (!(tmp & GICR_PENDBASER_SHAREABILITY_MASK)) {
+		/*
+		 * The HW reports non-shareable, we must remove the
+		 * cacheability attributes as well.
+		 */
+		val &= ~(GICR_PENDBASER_SHAREABILITY_MASK |
+			 GICR_PENDBASER_CACHEABILITY_MASK);
+		val |= GICR_PENDBASER_nC;
+		writeq_relaxed(val, rbase + GICR_PENDBASER);
+	}
 
 	/* Enable LPIs */
 	val = readl_relaxed(rbase + GICR_CTLR);
@@ -1003,7 +1053,7 @@ static void its_cpu_init_collection(void)
 			 * This ITS wants a linear CPU number.
 			 */
 			target = readq_relaxed(gic_data_rdist_rd_base() + GICR_TYPER);
-			target = GICR_TYPER_CPU_NUMBER(target);
+			target = GICR_TYPER_CPU_NUMBER(target) << 16;
 		}
 
 		/* Perform collection mapping */
@@ -1020,8 +1070,9 @@ static void its_cpu_init_collection(void)
 static struct its_device *its_find_device(struct its_node *its, u32 dev_id)
 {
 	struct its_device *its_dev = NULL, *tmp;
+	unsigned long flags;
 
-	raw_spin_lock(&its->lock);
+	raw_spin_lock_irqsave(&its->lock, flags);
 
 	list_for_each_entry(tmp, &its->its_device_list, entry) {
 		if (tmp->device_id == dev_id) {
@@ -1030,7 +1081,7 @@ static struct its_device *its_find_device(struct its_node *its, u32 dev_id)
 		}
 	}
 
-	raw_spin_unlock(&its->lock);
+	raw_spin_unlock_irqrestore(&its->lock, flags);
 
 	return its_dev;
 }
@@ -1040,6 +1091,7 @@ static struct its_device *its_create_device(struct its_node *its, u32 dev_id,
 {
 	struct its_device *dev;
 	unsigned long *lpi_map;
+	unsigned long flags;
 	void *itt;
 	int lpi_base;
 	int nr_lpis;
@@ -1056,7 +1108,7 @@ static struct its_device *its_create_device(struct its_node *its, u32 dev_id,
 	nr_ites = max(2UL, roundup_pow_of_two(nvecs));
 	sz = nr_ites * its->ite_size;
 	sz = max(sz, ITS_ITT_ALIGN) + ITS_ITT_ALIGN - 1;
-	itt = kmalloc(sz, GFP_KERNEL);
+	itt = kzalloc(sz, GFP_KERNEL);
 	lpi_map = its_lpi_alloc_chunks(nvecs, &lpi_base, &nr_lpis);
 
 	if (!dev || !itt || !lpi_map) {
@@ -1075,9 +1127,9 @@ static struct its_device *its_create_device(struct its_node *its, u32 dev_id,
 	dev->device_id = dev_id;
 	INIT_LIST_HEAD(&dev->entry);
 
-	raw_spin_lock(&its->lock);
+	raw_spin_lock_irqsave(&its->lock, flags);
 	list_add(&dev->entry, &its->its_device_list);
-	raw_spin_unlock(&its->lock);
+	raw_spin_unlock_irqrestore(&its->lock, flags);
 
 	/* Bind the device to the first possible CPU */
 	cpu = cpumask_first(cpu_online_mask);
@@ -1091,9 +1143,11 @@ static struct its_device *its_create_device(struct its_node *its, u32 dev_id,
 
 static void its_free_device(struct its_device *its_dev)
 {
-	raw_spin_lock(&its_dev->its->lock);
+	unsigned long flags;
+
+	raw_spin_lock_irqsave(&its_dev->its->lock, flags);
 	list_del(&its_dev->entry);
-	raw_spin_unlock(&its_dev->its->lock);
+	raw_spin_unlock_irqrestore(&its_dev->its->lock, flags);
 	kfree(its_dev->itt);
 	kfree(its_dev);
 }
@@ -1112,31 +1166,69 @@ static int its_alloc_device_irq(struct its_device *dev, irq_hw_number_t *hwirq)
 	return 0;
 }
 
+struct its_pci_alias {
+	struct pci_dev	*pdev;
+	u32		dev_id;
+	u32		count;
+};
+
+static int its_pci_msi_vec_count(struct pci_dev *pdev)
+{
+	int msi, msix;
+
+	msi = max(pci_msi_vec_count(pdev), 0);
+	msix = max(pci_msix_vec_count(pdev), 0);
+
+	return max(msi, msix);
+}
+
+static int its_get_pci_alias(struct pci_dev *pdev, u16 alias, void *data)
+{
+	struct its_pci_alias *dev_alias = data;
+
+	dev_alias->dev_id = alias;
+	if (pdev != dev_alias->pdev)
+		dev_alias->count += its_pci_msi_vec_count(dev_alias->pdev);
+
+	return 0;
+}
+
 static int its_msi_prepare(struct irq_domain *domain, struct device *dev,
 			   int nvec, msi_alloc_info_t *info)
 {
 	struct pci_dev *pdev;
 	struct its_node *its;
-	u32 dev_id;
 	struct its_device *its_dev;
+	struct its_pci_alias dev_alias;
 
 	if (!dev_is_pci(dev))
 		return -EINVAL;
 
 	pdev = to_pci_dev(dev);
-	dev_id = PCI_DEVID(pdev->bus->number, pdev->devfn);
+	dev_alias.pdev = pdev;
+	dev_alias.count = nvec;
+
+	pci_for_each_dma_alias(pdev, its_get_pci_alias, &dev_alias);
 	its = domain->parent->host_data;
 
-	its_dev = its_find_device(its, dev_id);
-	if (WARN_ON(its_dev))
-		return -EINVAL;
+	its_dev = its_find_device(its, dev_alias.dev_id);
+	if (its_dev) {
+		/*
+		 * We already have seen this ID, probably through
+		 * another alias (PCI bridge of some sort). No need to
+		 * create the device.
+		 */
+		dev_dbg(dev, "Reusing ITT for devID %x\n", dev_alias.dev_id);
+		goto out;
+	}
 
-	its_dev = its_create_device(its, dev_id, nvec);
+	its_dev = its_create_device(its, dev_alias.dev_id, dev_alias.count);
 	if (!its_dev)
 		return -ENOMEM;
 
-	dev_dbg(&pdev->dev, "ITT %d entries, %d bits\n", nvec, ilog2(nvec));
-
+	dev_dbg(&pdev->dev, "ITT %d entries, %d bits\n",
+		dev_alias.count, ilog2(dev_alias.count));
+out:
 	info->scratchpad[0].ptr = its_dev;
 	info->scratchpad[1].ptr = dev;
 	return 0;
@@ -1255,6 +1347,34 @@ static const struct irq_domain_ops its_domain_ops = {
 	.deactivate		= its_irq_domain_deactivate,
 };
 
+static int its_force_quiescent(void __iomem *base)
+{
+	u32 count = 1000000;	/* 1s */
+	u32 val;
+
+	val = readl_relaxed(base + GITS_CTLR);
+	if (val & GITS_CTLR_QUIESCENT)
+		return 0;
+
+	/* Disable the generation of all interrupts to this ITS */
+	val &= ~GITS_CTLR_ENABLE;
+	writel_relaxed(val, base + GITS_CTLR);
+
+	/* Poll GITS_CTLR and wait until ITS becomes quiescent */
+	while (1) {
+		val = readl_relaxed(base + GITS_CTLR);
+		if (val & GITS_CTLR_QUIESCENT)
+			return 0;
+
+		count--;
+		if (!count)
+			return -EBUSY;
+
+		cpu_relax();
+		udelay(1);
+	}
+}
+
 static int its_probe(struct device_node *node, struct irq_domain *parent)
 {
 	struct resource res;
@@ -1283,6 +1403,13 @@ static int its_probe(struct device_node *node, struct irq_domain *parent)
 		goto out_unmap;
 	}
 
+	err = its_force_quiescent(its_base);
+	if (err) {
+		pr_warn("%s: failed to quiesce, giving up\n",
+			node->full_name);
+		goto out_unmap;
+	}
+
 	pr_info("ITS: %s\n", node->full_name);
 
 	its = kzalloc(sizeof(*its), GFP_KERNEL);
@@ -1322,14 +1449,26 @@ static int its_probe(struct device_node *node, struct irq_domain *parent)
 
 	writeq_relaxed(baser, its->base + GITS_CBASER);
 	tmp = readq_relaxed(its->base + GITS_CBASER);
-	writeq_relaxed(0, its->base + GITS_CWRITER);
-	writel_relaxed(1, its->base + GITS_CTLR);
 
-	if ((tmp ^ baser) & GITS_BASER_SHAREABILITY_MASK) {
+	if ((tmp ^ baser) & GITS_CBASER_SHAREABILITY_MASK) {
+		if (!(tmp & GITS_CBASER_SHAREABILITY_MASK)) {
+			/*
+			 * The HW reports non-shareable, we must
+			 * remove the cacheability attributes as
+			 * well.
+			 */
+			baser &= ~(GITS_CBASER_SHAREABILITY_MASK |
+				   GITS_CBASER_CACHEABILITY_MASK);
+			baser |= GITS_CBASER_nC;
+			writeq_relaxed(baser, its->base + GITS_CBASER);
+		}
 		pr_info("ITS: using cache flushing for cmd queue\n");
 		its->flags |= ITS_FLAGS_CMDQ_NEEDS_FLUSHING;
 	}
 
+	writeq_relaxed(0, its->base + GITS_CWRITER);
+	writel_relaxed(GITS_CTLR_ENABLE, its->base + GITS_CTLR);
+
 	if (of_property_read_bool(its->msi_chip.of_node, "msi-controller")) {
 		its->domain = irq_domain_add_tree(NULL, &its_domain_ops, its);
 		if (!its->domain) {
@@ -1382,12 +1521,11 @@ static bool gic_rdists_supports_plpis(void)
 
 int its_cpu_init(void)
 {
-	if (!gic_rdists_supports_plpis()) {
-		pr_info("CPU%d: LPIs not supported\n", smp_processor_id());
-		return -ENXIO;
-	}
-
 	if (!list_empty(&its_nodes)) {
+		if (!gic_rdists_supports_plpis()) {
+			pr_info("CPU%d: LPIs not supported\n", smp_processor_id());
+			return -ENXIO;
+		}
 		its_cpu_init_lpis();
 		its_cpu_init_collection();
 	}
diff --git a/drivers/irqchip/irq-gic-v3.c b/drivers/irqchip/irq-gic-v3.c
index 1c6dea2..4f2fb62 100644
--- a/drivers/irqchip/irq-gic-v3.c
+++ b/drivers/irqchip/irq-gic-v3.c
@@ -195,6 +195,19 @@ static void gic_enable_redist(bool enable)
 /*
  * Routines to disable, enable, EOI and route interrupts
  */
+static int gic_peek_irq(struct irq_data *d, u32 offset)
+{
+	u32 mask = 1 << (gic_irq(d) % 32);
+	void __iomem *base;
+
+	if (gic_irq_in_rdist(d))
+		base = gic_data_rdist_sgi_base();
+	else
+		base = gic_data.dist_base;
+
+	return !!(readl_relaxed(base + offset + (gic_irq(d) / 32) * 4) & mask);
+}
+
 static void gic_poke_irq(struct irq_data *d, u32 offset)
 {
 	u32 mask = 1 << (gic_irq(d) % 32);
@@ -223,6 +236,61 @@ static void gic_unmask_irq(struct irq_data *d)
 	gic_poke_irq(d, GICD_ISENABLER);
 }
 
+static int gic_irq_set_irqchip_state(struct irq_data *d,
+				     enum irqchip_irq_state which, bool val)
+{
+	u32 reg;
+
+	if (d->hwirq >= gic_data.irq_nr) /* PPI/SPI only */
+		return -EINVAL;
+
+	switch (which) {
+	case IRQCHIP_STATE_PENDING:
+		reg = val ? GICD_ISPENDR : GICD_ICPENDR;
+		break;
+
+	case IRQCHIP_STATE_ACTIVE:
+		reg = val ? GICD_ISACTIVER : GICD_ICACTIVER;
+		break;
+
+	case IRQCHIP_STATE_MASKED:
+		reg = val ? GICD_ICENABLER : GICD_ISENABLER;
+		break;
+
+	default:
+		return -EINVAL;
+	}
+
+	gic_poke_irq(d, reg);
+	return 0;
+}
+
+static int gic_irq_get_irqchip_state(struct irq_data *d,
+				     enum irqchip_irq_state which, bool *val)
+{
+	if (d->hwirq >= gic_data.irq_nr) /* PPI/SPI only */
+		return -EINVAL;
+
+	switch (which) {
+	case IRQCHIP_STATE_PENDING:
+		*val = gic_peek_irq(d, GICD_ISPENDR);
+		break;
+
+	case IRQCHIP_STATE_ACTIVE:
+		*val = gic_peek_irq(d, GICD_ISACTIVER);
+		break;
+
+	case IRQCHIP_STATE_MASKED:
+		*val = !gic_peek_irq(d, GICD_ISENABLER);
+		break;
+
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
 static void gic_eoi_irq(struct irq_data *d)
 {
 	gic_write_eoir(gic_irq(d));
@@ -418,19 +486,6 @@ static void gic_cpu_init(void)
 }
 
 #ifdef CONFIG_SMP
-static int gic_peek_irq(struct irq_data *d, u32 offset)
-{
-	u32 mask = 1 << (gic_irq(d) % 32);
-	void __iomem *base;
-
-	if (gic_irq_in_rdist(d))
-		base = gic_data_rdist_sgi_base();
-	else
-		base = gic_data.dist_base;
-
-	return !!(readl_relaxed(base + offset + (gic_irq(d) / 32) * 4) & mask);
-}
-
 static int gic_secondary_init(struct notifier_block *nfb,
 			      unsigned long action, void *hcpu)
 {
@@ -466,7 +521,7 @@ static u16 gic_compute_target_list(int *base_cpu, const struct cpumask *mask,
 		tlist |= 1 << (mpidr & 0xf);
 
 		cpu = cpumask_next(cpu, mask);
-		if (cpu == nr_cpu_ids)
+		if (cpu >= nr_cpu_ids)
 			goto out;
 
 		mpidr = cpu_logical_map(cpu);
@@ -601,6 +656,8 @@ static struct irq_chip gic_chip = {
 	.irq_eoi		= gic_eoi_irq,
 	.irq_set_type		= gic_set_type,
 	.irq_set_affinity	= gic_set_affinity,
+	.irq_get_irqchip_state	= gic_irq_get_irqchip_state,
+	.irq_set_irqchip_state	= gic_irq_set_irqchip_state,
 };
 
 #define GIC_ID_NR		(1U << gic_data.rdists.id_bits)
diff --git a/drivers/irqchip/irq-gic.c b/drivers/irqchip/irq-gic.c
index 4634cf7..a6ce347 100644
--- a/drivers/irqchip/irq-gic.c
+++ b/drivers/irqchip/irq-gic.c
@@ -151,26 +151,38 @@ static inline unsigned int gic_irq(struct irq_data *d)
 /*
  * Routines to acknowledge, disable and enable interrupts
  */
-static void gic_mask_irq(struct irq_data *d)
+static void gic_poke_irq(struct irq_data *d, u32 offset)
 {
 	u32 mask = 1 << (gic_irq(d) % 32);
+	writel_relaxed(mask, gic_dist_base(d) + offset + (gic_irq(d) / 32) * 4);
+}
 
-	raw_spin_lock(&irq_controller_lock);
-	writel_relaxed(mask, gic_dist_base(d) + GIC_DIST_ENABLE_CLEAR + (gic_irq(d) / 32) * 4);
+static int gic_peek_irq(struct irq_data *d, u32 offset)
+{
+	u32 mask = 1 << (gic_irq(d) % 32);
+	return !!(readl_relaxed(gic_dist_base(d) + offset + (gic_irq(d) / 32) * 4) & mask);
+}
+
+static void gic_mask_irq(struct irq_data *d)
+{
+	unsigned long flags;
+
+	raw_spin_lock_irqsave(&irq_controller_lock, flags);
+	gic_poke_irq(d, GIC_DIST_ENABLE_CLEAR);
 	if (gic_arch_extn.irq_mask)
 		gic_arch_extn.irq_mask(d);
-	raw_spin_unlock(&irq_controller_lock);
+	raw_spin_unlock_irqrestore(&irq_controller_lock, flags);
 }
 
 static void gic_unmask_irq(struct irq_data *d)
 {
-	u32 mask = 1 << (gic_irq(d) % 32);
+	unsigned long flags;
 
-	raw_spin_lock(&irq_controller_lock);
+	raw_spin_lock_irqsave(&irq_controller_lock, flags);
 	if (gic_arch_extn.irq_unmask)
 		gic_arch_extn.irq_unmask(d);
-	writel_relaxed(mask, gic_dist_base(d) + GIC_DIST_ENABLE_SET + (gic_irq(d) / 32) * 4);
-	raw_spin_unlock(&irq_controller_lock);
+	gic_poke_irq(d, GIC_DIST_ENABLE_SET);
+	raw_spin_unlock_irqrestore(&irq_controller_lock, flags);
 }
 
 static void gic_eoi_irq(struct irq_data *d)
@@ -184,10 +196,60 @@ static void gic_eoi_irq(struct irq_data *d)
 	writel_relaxed(gic_irq(d), gic_cpu_base(d) + GIC_CPU_EOI);
 }
 
+static int gic_irq_set_irqchip_state(struct irq_data *d,
+				     enum irqchip_irq_state which, bool val)
+{
+	u32 reg;
+
+	switch (which) {
+	case IRQCHIP_STATE_PENDING:
+		reg = val ? GIC_DIST_PENDING_SET : GIC_DIST_PENDING_CLEAR;
+		break;
+
+	case IRQCHIP_STATE_ACTIVE:
+		reg = val ? GIC_DIST_ACTIVE_SET : GIC_DIST_ACTIVE_CLEAR;
+		break;
+
+	case IRQCHIP_STATE_MASKED:
+		reg = val ? GIC_DIST_ENABLE_CLEAR : GIC_DIST_ENABLE_SET;
+		break;
+
+	default:
+		return -EINVAL;
+	}
+
+	gic_poke_irq(d, reg);
+	return 0;
+}
+
+static int gic_irq_get_irqchip_state(struct irq_data *d,
+				      enum irqchip_irq_state which, bool *val)
+{
+	switch (which) {
+	case IRQCHIP_STATE_PENDING:
+		*val = gic_peek_irq(d, GIC_DIST_PENDING_SET);
+		break;
+
+	case IRQCHIP_STATE_ACTIVE:
+		*val = gic_peek_irq(d, GIC_DIST_ACTIVE_SET);
+		break;
+
+	case IRQCHIP_STATE_MASKED:
+		*val = !gic_peek_irq(d, GIC_DIST_ENABLE_SET);
+		break;
+
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
 static int gic_set_type(struct irq_data *d, unsigned int type)
 {
 	void __iomem *base = gic_dist_base(d);
 	unsigned int gicirq = gic_irq(d);
+	unsigned long flags;
 	int ret;
 
 	/* Interrupt configuration for SGIs can't be changed */
@@ -199,14 +261,14 @@ static int gic_set_type(struct irq_data *d, unsigned int type)
 			    type != IRQ_TYPE_EDGE_RISING)
 		return -EINVAL;
 
-	raw_spin_lock(&irq_controller_lock);
+	raw_spin_lock_irqsave(&irq_controller_lock, flags);
 
 	if (gic_arch_extn.irq_set_type)
 		gic_arch_extn.irq_set_type(d, type);
 
 	ret = gic_configure_irq(gicirq, type, base, NULL);
 
-	raw_spin_unlock(&irq_controller_lock);
+	raw_spin_unlock_irqrestore(&irq_controller_lock, flags);
 
 	return ret;
 }
@@ -227,6 +289,7 @@ static int gic_set_affinity(struct irq_data *d, const struct cpumask *mask_val,
 	void __iomem *reg = gic_dist_base(d) + GIC_DIST_TARGET + (gic_irq(d) & ~3);
 	unsigned int cpu, shift = (gic_irq(d) % 4) * 8;
 	u32 val, mask, bit;
+	unsigned long flags;
 
 	if (!force)
 		cpu = cpumask_any_and(mask_val, cpu_online_mask);
@@ -236,12 +299,12 @@ static int gic_set_affinity(struct irq_data *d, const struct cpumask *mask_val,
 	if (cpu >= NR_GIC_CPU_IF || cpu >= nr_cpu_ids)
 		return -EINVAL;
 
-	raw_spin_lock(&irq_controller_lock);
+	raw_spin_lock_irqsave(&irq_controller_lock, flags);
 	mask = 0xff << shift;
 	bit = gic_cpu_map[cpu] << shift;
 	val = readl_relaxed(reg) & ~mask;
 	writel_relaxed(val | bit, reg);
-	raw_spin_unlock(&irq_controller_lock);
+	raw_spin_unlock_irqrestore(&irq_controller_lock, flags);
 
 	return IRQ_SET_MASK_OK;
 }
@@ -325,6 +388,8 @@ static struct irq_chip gic_chip = {
 	.irq_set_affinity	= gic_set_affinity,
 #endif
 	.irq_set_wake		= gic_set_wake,
+	.irq_get_irqchip_state	= gic_irq_get_irqchip_state,
+	.irq_set_irqchip_state	= gic_irq_set_irqchip_state,
 };
 
 void __init gic_cascade_irq(unsigned int gic_nr, unsigned int irq)
@@ -349,7 +414,7 @@ static u8 gic_get_cpumask(struct gic_chip_data *gic)
 			break;
 	}
 
-	if (!mask)
+	if (!mask && num_possible_cpus() > 1)
 		pr_crit("GIC CPU mask not found - kernel will fail to boot.\n");
 
 	return mask;
@@ -798,15 +863,12 @@ static int gic_irq_domain_map(struct irq_domain *d, unsigned int irq,
 		irq_domain_set_info(d, irq, hw, &gic_chip, d->host_data,
 				    handle_fasteoi_irq, NULL, NULL);
 		set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
-
-		gic_routable_irq_domain_ops->map(d, irq, hw);
 	}
 	return 0;
 }
 
 static void gic_irq_domain_unmap(struct irq_domain *d, unsigned int irq)
 {
-	gic_routable_irq_domain_ops->unmap(d, irq);
 }
 
 static int gic_irq_domain_xlate(struct irq_domain *d,
@@ -825,16 +887,8 @@ static int gic_irq_domain_xlate(struct irq_domain *d,
 	*out_hwirq = intspec[1] + 16;
 
 	/* For SPIs, we need to add 16 more to get the GIC irq ID number */
-	if (!intspec[0]) {
-		ret = gic_routable_irq_domain_ops->xlate(d, controller,
-							 intspec,
-							 intsize,
-							 out_hwirq,
-							 out_type);
-
-		if (IS_ERR_VALUE(ret))
-			return ret;
-	}
+	if (!intspec[0])
+		*out_hwirq += 16;
 
 	*out_type = intspec[2] & IRQ_TYPE_SENSE_MASK;
 
@@ -891,37 +945,11 @@ static const struct irq_domain_ops gic_irq_domain_ops = {
 	.xlate = gic_irq_domain_xlate,
 };
 
-/* Default functions for routable irq domain */
-static int gic_routable_irq_domain_map(struct irq_domain *d, unsigned int irq,
-			      irq_hw_number_t hw)
-{
-	return 0;
-}
-
-static void gic_routable_irq_domain_unmap(struct irq_domain *d,
-					  unsigned int irq)
+void gic_set_irqchip_flags(unsigned long flags)
 {
+	gic_chip.flags |= flags;
 }
 
-static int gic_routable_irq_domain_xlate(struct irq_domain *d,
-				struct device_node *controller,
-				const u32 *intspec, unsigned int intsize,
-				unsigned long *out_hwirq,
-				unsigned int *out_type)
-{
-	*out_hwirq += 16;
-	return 0;
-}
-
-static const struct irq_domain_ops gic_default_routable_irq_domain_ops = {
-	.map = gic_routable_irq_domain_map,
-	.unmap = gic_routable_irq_domain_unmap,
-	.xlate = gic_routable_irq_domain_xlate,
-};
-
-const struct irq_domain_ops *gic_routable_irq_domain_ops =
-					&gic_default_routable_irq_domain_ops;
-
 void __init gic_init_bases(unsigned int gic_nr, int irq_start,
 			   void __iomem *dist_base, void __iomem *cpu_base,
 			   u32 percpu_offset, struct device_node *node)
@@ -929,7 +957,6 @@ void __init gic_init_bases(unsigned int gic_nr, int irq_start,
 	irq_hw_number_t hwirq_base;
 	struct gic_chip_data *gic;
 	int gic_irqs, irq_base, i;
-	int nr_routable_irqs;
 
 	BUG_ON(gic_nr >= MAX_GIC_NR);
 
@@ -985,15 +1012,9 @@ void __init gic_init_bases(unsigned int gic_nr, int irq_start,
 	gic->gic_irqs = gic_irqs;
 
 	if (node) {		/* DT case */
-		const struct irq_domain_ops *ops = &gic_irq_domain_hierarchy_ops;
-
-		if (!of_property_read_u32(node, "arm,routable-irqs",
-					  &nr_routable_irqs)) {
-			ops = &gic_irq_domain_ops;
-			gic_irqs = nr_routable_irqs;
-		}
-
-		gic->domain = irq_domain_add_linear(node, gic_irqs, ops, gic);
+		gic->domain = irq_domain_add_linear(node, gic_irqs,
+						    &gic_irq_domain_hierarchy_ops,
+						    gic);
 	} else {		/* Non-DT case */
 		/*
 		 * For primary GICs, skip over SGIs.
diff --git a/drivers/irqchip/irq-mips-gic.c b/drivers/irqchip/irq-mips-gic.c
index 9acdc08..f2d269b 100644
--- a/drivers/irqchip/irq-mips-gic.c
+++ b/drivers/irqchip/irq-mips-gic.c
@@ -166,6 +166,27 @@ cycle_t gic_read_compare(void)
 
 	return (((cycle_t) hi) << 32) + lo;
 }
+
+void gic_start_count(void)
+{
+	u32 gicconfig;
+
+	/* Start the counter */
+	gicconfig = gic_read(GIC_REG(SHARED, GIC_SH_CONFIG));
+	gicconfig &= ~(1 << GIC_SH_CONFIG_COUNTSTOP_SHF);
+	gic_write(GIC_REG(SHARED, GIC_SH_CONFIG), gicconfig);
+}
+
+void gic_stop_count(void)
+{
+	u32 gicconfig;
+
+	/* Stop the counter */
+	gicconfig = gic_read(GIC_REG(SHARED, GIC_SH_CONFIG));
+	gicconfig |= 1 << GIC_SH_CONFIG_COUNTSTOP_SHF;
+	gic_write(GIC_REG(SHARED, GIC_SH_CONFIG), gicconfig);
+}
+
 #endif
 
 static bool gic_local_irq_is_routable(int intr)
diff --git a/drivers/irqchip/irq-renesas-irqc.c b/drivers/irqchip/irq-renesas-irqc.c
index 384e6ed..cdf80b7 100644
--- a/drivers/irqchip/irq-renesas-irqc.c
+++ b/drivers/irqchip/irq-renesas-irqc.c
@@ -17,6 +17,7 @@
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
 
+#include <linux/clk.h>
 #include <linux/init.h>
 #include <linux/platform_device.h>
 #include <linux/spinlock.h>
@@ -29,15 +30,26 @@
 #include <linux/slab.h>
 #include <linux/module.h>
 #include <linux/platform_data/irq-renesas-irqc.h>
+#include <linux/pm_runtime.h>
 
-#define IRQC_IRQ_MAX 32 /* maximum 32 interrupts per driver instance */
+#define IRQC_IRQ_MAX	32	/* maximum 32 interrupts per driver instance */
 
-#define IRQC_REQ_STS 0x00
-#define IRQC_EN_STS 0x04
-#define IRQC_EN_SET 0x08
+#define IRQC_REQ_STS	0x00	/* Interrupt Request Status Register */
+#define IRQC_EN_STS	0x04	/* Interrupt Enable Status Register */
+#define IRQC_EN_SET	0x08	/* Interrupt Enable Set Register */
 #define IRQC_INT_CPU_BASE(n) (0x000 + ((n) * 0x10))
-#define DETECT_STATUS 0x100
+				/* SYS-CPU vs. RT-CPU */
+#define DETECT_STATUS	0x100	/* IRQn Detect Status Register */
+#define MONITOR		0x104	/* IRQn Signal Level Monitor Register */
+#define HLVL_STS	0x108	/* IRQn High Level Detect Status Register */
+#define LLVL_STS	0x10c	/* IRQn Low Level Detect Status Register */
+#define S_R_EDGE_STS	0x110	/* IRQn Sync Rising Edge Detect Status Reg. */
+#define S_F_EDGE_STS	0x114	/* IRQn Sync Falling Edge Detect Status Reg. */
+#define A_R_EDGE_STS	0x118	/* IRQn Async Rising Edge Detect Status Reg. */
+#define A_F_EDGE_STS	0x11c	/* IRQn Async Falling Edge Detect Status Reg. */
+#define CHTEN_STS	0x120	/* Chattering Reduction Status Register */
 #define IRQC_CONFIG(n) (0x180 + ((n) * 0x04))
+				/* IRQn Configuration Register */
 
 struct irqc_irq {
 	int hw_irq;
@@ -55,6 +67,7 @@ struct irqc_priv {
 	struct platform_device *pdev;
 	struct irq_chip irq_chip;
 	struct irq_domain *irq_domain;
+	struct clk *clk;
 };
 
 static void irqc_dbg(struct irqc_irq *i, char *str)
@@ -94,7 +107,7 @@ static int irqc_irq_set_type(struct irq_data *d, unsigned int type)
 	struct irqc_priv *p = irq_data_get_irq_chip_data(d);
 	int hw_irq = irqd_to_hwirq(d);
 	unsigned char value = irqc_sense[type & IRQ_TYPE_SENSE_MASK];
-	unsigned long tmp;
+	u32 tmp;
 
 	irqc_dbg(&p->irq[hw_irq], "sense");
 
@@ -108,11 +121,26 @@ static int irqc_irq_set_type(struct irq_data *d, unsigned int type)
 	return 0;
 }
 
+static int irqc_irq_set_wake(struct irq_data *d, unsigned int on)
+{
+	struct irqc_priv *p = irq_data_get_irq_chip_data(d);
+
+	if (!p->clk)
+		return 0;
+
+	if (on)
+		clk_enable(p->clk);
+	else
+		clk_disable(p->clk);
+
+	return 0;
+}
+
 static irqreturn_t irqc_irq_handler(int irq, void *dev_id)
 {
 	struct irqc_irq *i = dev_id;
 	struct irqc_priv *p = i->p;
-	unsigned long bit = BIT(i->hw_irq);
+	u32 bit = BIT(i->hw_irq);
 
 	irqc_dbg(i, "demux1");
 
@@ -170,6 +198,15 @@ static int irqc_probe(struct platform_device *pdev)
 	p->pdev = pdev;
 	platform_set_drvdata(pdev, p);
 
+	p->clk = devm_clk_get(&pdev->dev, NULL);
+	if (IS_ERR(p->clk)) {
+		dev_warn(&pdev->dev, "unable to get clock\n");
+		p->clk = NULL;
+	}
+
+	pm_runtime_enable(&pdev->dev);
+	pm_runtime_get_sync(&pdev->dev);
+
 	/* get hold of manadatory IOMEM */
 	io = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	if (!io) {
@@ -210,7 +247,8 @@ static int irqc_probe(struct platform_device *pdev)
 	irq_chip->irq_mask = irqc_irq_disable;
 	irq_chip->irq_unmask = irqc_irq_enable;
 	irq_chip->irq_set_type = irqc_irq_set_type;
-	irq_chip->flags	= IRQCHIP_SKIP_SET_WAKE | IRQCHIP_MASK_ON_SUSPEND;
+	irq_chip->irq_set_wake = irqc_irq_set_wake;
+	irq_chip->flags	= IRQCHIP_MASK_ON_SUSPEND;
 
 	p->irq_domain = irq_domain_add_simple(pdev->dev.of_node,
 					      p->number_of_irqs,
@@ -250,6 +288,8 @@ err3:
 err2:
 	iounmap(p->iomem);
 err1:
+	pm_runtime_put(&pdev->dev);
+	pm_runtime_disable(&pdev->dev);
 	kfree(p);
 err0:
 	return ret;
@@ -265,6 +305,8 @@ static int irqc_remove(struct platform_device *pdev)
 
 	irq_domain_remove(p->irq_domain);
 	iounmap(p->iomem);
+	pm_runtime_put(&pdev->dev);
+	pm_runtime_disable(&pdev->dev);
 	kfree(p);
 	return 0;
 }
diff --git a/drivers/irqchip/irq-st.c b/drivers/irqchip/irq-st.c
new file mode 100644
index 0000000..9af48a8
--- /dev/null
+++ b/drivers/irqchip/irq-st.c
@@ -0,0 +1,206 @@
+/*
+ *  Copyright (C) 2014 STMicroelectronics – All Rights Reserved
+ *
+ *  Author: Lee Jones <lee.jones@linaro.org>
+ *
+ *  This is a re-write of Christophe Kerello's PMU driver.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <dt-bindings/interrupt-controller/irq-st.h>
+#include <linux/err.h>
+#include <linux/mfd/syscon.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+#include <linux/slab.h>
+
+#define STIH415_SYSCFG_642		0x0a8
+#define STIH416_SYSCFG_7543		0x87c
+#define STIH407_SYSCFG_5102		0x198
+#define STID127_SYSCFG_734		0x088
+
+#define ST_A9_IRQ_MASK			0x001FFFFF
+#define ST_A9_IRQ_MAX_CHANS		2
+
+#define ST_A9_IRQ_EN_CTI_0		BIT(0)
+#define ST_A9_IRQ_EN_CTI_1		BIT(1)
+#define ST_A9_IRQ_EN_PMU_0		BIT(2)
+#define ST_A9_IRQ_EN_PMU_1		BIT(3)
+#define ST_A9_IRQ_EN_PL310_L2		BIT(4)
+#define ST_A9_IRQ_EN_EXT_0		BIT(5)
+#define ST_A9_IRQ_EN_EXT_1		BIT(6)
+#define ST_A9_IRQ_EN_EXT_2		BIT(7)
+
+#define ST_A9_FIQ_N_SEL(dev, chan)	(dev << (8  + (chan * 3)))
+#define ST_A9_IRQ_N_SEL(dev, chan)	(dev << (14 + (chan * 3)))
+#define ST_A9_EXTIRQ_INV_SEL(dev)	(dev << 20)
+
+struct st_irq_syscfg {
+	struct regmap *regmap;
+	unsigned int syscfg;
+	unsigned int config;
+	bool ext_inverted;
+};
+
+static const struct of_device_id st_irq_syscfg_match[] = {
+	{
+		.compatible = "st,stih415-irq-syscfg",
+		.data = (void *)STIH415_SYSCFG_642,
+	},
+	{
+		.compatible = "st,stih416-irq-syscfg",
+		.data = (void *)STIH416_SYSCFG_7543,
+	},
+	{
+		.compatible = "st,stih407-irq-syscfg",
+		.data = (void *)STIH407_SYSCFG_5102,
+	},
+	{
+		.compatible = "st,stid127-irq-syscfg",
+		.data = (void *)STID127_SYSCFG_734,
+	},
+	{}
+};
+
+static int st_irq_xlate(struct platform_device *pdev,
+			int device, int channel, bool irq)
+{
+	struct st_irq_syscfg *ddata = dev_get_drvdata(&pdev->dev);
+
+	/* Set the device enable bit. */
+	switch (device) {
+	case ST_IRQ_SYSCFG_EXT_0:
+		ddata->config |= ST_A9_IRQ_EN_EXT_0;
+		break;
+	case ST_IRQ_SYSCFG_EXT_1:
+		ddata->config |= ST_A9_IRQ_EN_EXT_1;
+		break;
+	case ST_IRQ_SYSCFG_EXT_2:
+		ddata->config |= ST_A9_IRQ_EN_EXT_2;
+		break;
+	case ST_IRQ_SYSCFG_CTI_0:
+		ddata->config |= ST_A9_IRQ_EN_CTI_0;
+		break;
+	case ST_IRQ_SYSCFG_CTI_1:
+		ddata->config |= ST_A9_IRQ_EN_CTI_1;
+		break;
+	case ST_IRQ_SYSCFG_PMU_0:
+		ddata->config |= ST_A9_IRQ_EN_PMU_0;
+		break;
+	case ST_IRQ_SYSCFG_PMU_1:
+		ddata->config |= ST_A9_IRQ_EN_PMU_1;
+		break;
+	case ST_IRQ_SYSCFG_pl310_L2:
+		ddata->config |= ST_A9_IRQ_EN_PL310_L2;
+		break;
+	case ST_IRQ_SYSCFG_DISABLED:
+		return 0;
+	default:
+		dev_err(&pdev->dev, "Unrecognised device %d\n", device);
+		return -EINVAL;
+	}
+
+	/* Select IRQ/FIQ channel for device. */
+	ddata->config |= irq ?
+		ST_A9_IRQ_N_SEL(device, channel) :
+		ST_A9_FIQ_N_SEL(device, channel);
+
+	return 0;
+}
+
+static int st_irq_syscfg_enable(struct platform_device *pdev)
+{
+	struct device_node *np = pdev->dev.of_node;
+	struct st_irq_syscfg *ddata = dev_get_drvdata(&pdev->dev);
+	int channels, ret, i;
+	u32 device, invert;
+
+	channels = of_property_count_u32_elems(np, "st,irq-device");
+	if (channels != ST_A9_IRQ_MAX_CHANS) {
+		dev_err(&pdev->dev, "st,enable-irq-device must have 2 elems\n");
+		return -EINVAL;
+	}
+
+	channels = of_property_count_u32_elems(np, "st,fiq-device");
+	if (channels != ST_A9_IRQ_MAX_CHANS) {
+		dev_err(&pdev->dev, "st,enable-fiq-device must have 2 elems\n");
+		return -EINVAL;
+	}
+
+	for (i = 0; i < ST_A9_IRQ_MAX_CHANS; i++) {
+		of_property_read_u32_index(np, "st,irq-device", i, &device);
+
+		ret = st_irq_xlate(pdev, device, i, true);
+		if (ret)
+			return ret;
+
+		of_property_read_u32_index(np, "st,fiq-device", i, &device);
+
+		ret = st_irq_xlate(pdev, device, i, false);
+		if (ret)
+			return ret;
+	}
+
+	/* External IRQs may be inverted. */
+	of_property_read_u32(np, "st,invert-ext", &invert);
+	ddata->config |= ST_A9_EXTIRQ_INV_SEL(invert);
+
+	return regmap_update_bits(ddata->regmap, ddata->syscfg,
+				  ST_A9_IRQ_MASK, ddata->config);
+}
+
+static int st_irq_syscfg_probe(struct platform_device *pdev)
+{
+	struct device_node *np = pdev->dev.of_node;
+	const struct of_device_id *match;
+	struct st_irq_syscfg *ddata;
+
+	ddata = devm_kzalloc(&pdev->dev, sizeof(*ddata), GFP_KERNEL);
+	if (!ddata)
+		return -ENOMEM;
+
+	match = of_match_device(st_irq_syscfg_match, &pdev->dev);
+	if (!match)
+		return -ENODEV;
+
+	ddata->syscfg = (unsigned int)match->data;
+
+	ddata->regmap = syscon_regmap_lookup_by_phandle(np, "st,syscfg");
+	if (IS_ERR(ddata->regmap)) {
+		dev_err(&pdev->dev, "syscfg phandle missing\n");
+		return PTR_ERR(ddata->regmap);
+	}
+
+	dev_set_drvdata(&pdev->dev, ddata);
+
+	return st_irq_syscfg_enable(pdev);
+}
+
+static int st_irq_syscfg_resume(struct device *dev)
+{
+	struct st_irq_syscfg *ddata = dev_get_drvdata(dev);
+
+	return regmap_update_bits(ddata->regmap, ddata->syscfg,
+				  ST_A9_IRQ_MASK, ddata->config);
+}
+
+static SIMPLE_DEV_PM_OPS(st_irq_syscfg_pm_ops, NULL, st_irq_syscfg_resume);
+
+static struct platform_driver st_irq_syscfg_driver = {
+	.driver = {
+		.name = "st_irq_syscfg",
+		.pm = &st_irq_syscfg_pm_ops,
+		.of_match_table = st_irq_syscfg_match,
+	},
+	.probe = st_irq_syscfg_probe,
+};
+
+static int __init st_irq_syscfg_init(void)
+{
+	return platform_driver_register(&st_irq_syscfg_driver);
+}
+core_initcall(st_irq_syscfg_init);
diff --git a/drivers/irqchip/irq-tegra.c b/drivers/irqchip/irq-tegra.c
new file mode 100644
index 0000000..51c485d
--- /dev/null
+++ b/drivers/irqchip/irq-tegra.c
@@ -0,0 +1,377 @@
+/*
+ * Driver code for Tegra's Legacy Interrupt Controller
+ *
+ * Author: Marc Zyngier <marc.zyngier@arm.com>
+ *
+ * Heavily based on the original arch/arm/mach-tegra/irq.c code:
+ * Copyright (C) 2011 Google, Inc.
+ *
+ * Author:
+ *	Colin Cross <ccross@android.com>
+ *
+ * Copyright (C) 2010,2013, NVIDIA Corporation
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/io.h>
+#include <linux/irq.h>
+#include <linux/irqdomain.h>
+#include <linux/of_address.h>
+#include <linux/slab.h>
+#include <linux/syscore_ops.h>
+
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+
+#include "irqchip.h"
+
+#define ICTLR_CPU_IEP_VFIQ	0x08
+#define ICTLR_CPU_IEP_FIR	0x14
+#define ICTLR_CPU_IEP_FIR_SET	0x18
+#define ICTLR_CPU_IEP_FIR_CLR	0x1c
+
+#define ICTLR_CPU_IER		0x20
+#define ICTLR_CPU_IER_SET	0x24
+#define ICTLR_CPU_IER_CLR	0x28
+#define ICTLR_CPU_IEP_CLASS	0x2C
+
+#define ICTLR_COP_IER		0x30
+#define ICTLR_COP_IER_SET	0x34
+#define ICTLR_COP_IER_CLR	0x38
+#define ICTLR_COP_IEP_CLASS	0x3c
+
+#define TEGRA_MAX_NUM_ICTLRS	6
+
+static unsigned int num_ictlrs;
+
+struct tegra_ictlr_soc {
+	unsigned int num_ictlrs;
+};
+
+static const struct tegra_ictlr_soc tegra20_ictlr_soc = {
+	.num_ictlrs = 4,
+};
+
+static const struct tegra_ictlr_soc tegra30_ictlr_soc = {
+	.num_ictlrs = 5,
+};
+
+static const struct tegra_ictlr_soc tegra210_ictlr_soc = {
+	.num_ictlrs = 6,
+};
+
+static const struct of_device_id ictlr_matches[] = {
+	{ .compatible = "nvidia,tegra210-ictlr", .data = &tegra210_ictlr_soc },
+	{ .compatible = "nvidia,tegra30-ictlr", .data = &tegra30_ictlr_soc },
+	{ .compatible = "nvidia,tegra20-ictlr", .data = &tegra20_ictlr_soc },
+	{ }
+};
+
+struct tegra_ictlr_info {
+	void __iomem *base[TEGRA_MAX_NUM_ICTLRS];
+#ifdef CONFIG_PM_SLEEP
+	u32 cop_ier[TEGRA_MAX_NUM_ICTLRS];
+	u32 cop_iep[TEGRA_MAX_NUM_ICTLRS];
+	u32 cpu_ier[TEGRA_MAX_NUM_ICTLRS];
+	u32 cpu_iep[TEGRA_MAX_NUM_ICTLRS];
+
+	u32 ictlr_wake_mask[TEGRA_MAX_NUM_ICTLRS];
+#endif
+};
+
+static struct tegra_ictlr_info *lic;
+
+static inline void tegra_ictlr_write_mask(struct irq_data *d, unsigned long reg)
+{
+	void __iomem *base = d->chip_data;
+	u32 mask;
+
+	mask = BIT(d->hwirq % 32);
+	writel_relaxed(mask, base + reg);
+}
+
+static void tegra_mask(struct irq_data *d)
+{
+	tegra_ictlr_write_mask(d, ICTLR_CPU_IER_CLR);
+	irq_chip_mask_parent(d);
+}
+
+static void tegra_unmask(struct irq_data *d)
+{
+	tegra_ictlr_write_mask(d, ICTLR_CPU_IER_SET);
+	irq_chip_unmask_parent(d);
+}
+
+static void tegra_eoi(struct irq_data *d)
+{
+	tegra_ictlr_write_mask(d, ICTLR_CPU_IEP_FIR_CLR);
+	irq_chip_eoi_parent(d);
+}
+
+static int tegra_retrigger(struct irq_data *d)
+{
+	tegra_ictlr_write_mask(d, ICTLR_CPU_IEP_FIR_SET);
+	return irq_chip_retrigger_hierarchy(d);
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int tegra_set_wake(struct irq_data *d, unsigned int enable)
+{
+	u32 irq = d->hwirq;
+	u32 index, mask;
+
+	index = (irq / 32);
+	mask = BIT(irq % 32);
+	if (enable)
+		lic->ictlr_wake_mask[index] |= mask;
+	else
+		lic->ictlr_wake_mask[index] &= ~mask;
+
+	/*
+	 * Do *not* call into the parent, as the GIC doesn't have any
+	 * wake-up facility...
+	 */
+	return 0;
+}
+
+static int tegra_ictlr_suspend(void)
+{
+	unsigned long flags;
+	unsigned int i;
+
+	local_irq_save(flags);
+	for (i = 0; i < num_ictlrs; i++) {
+		void __iomem *ictlr = lic->base[i];
+
+		/* Save interrupt state */
+		lic->cpu_ier[i] = readl_relaxed(ictlr + ICTLR_CPU_IER);
+		lic->cpu_iep[i] = readl_relaxed(ictlr + ICTLR_CPU_IEP_CLASS);
+		lic->cop_ier[i] = readl_relaxed(ictlr + ICTLR_COP_IER);
+		lic->cop_iep[i] = readl_relaxed(ictlr + ICTLR_COP_IEP_CLASS);
+
+		/* Disable COP interrupts */
+		writel_relaxed(~0ul, ictlr + ICTLR_COP_IER_CLR);
+
+		/* Disable CPU interrupts */
+		writel_relaxed(~0ul, ictlr + ICTLR_CPU_IER_CLR);
+
+		/* Enable the wakeup sources of ictlr */
+		writel_relaxed(lic->ictlr_wake_mask[i], ictlr + ICTLR_CPU_IER_SET);
+	}
+	local_irq_restore(flags);
+
+	return 0;
+}
+
+static void tegra_ictlr_resume(void)
+{
+	unsigned long flags;
+	unsigned int i;
+
+	local_irq_save(flags);
+	for (i = 0; i < num_ictlrs; i++) {
+		void __iomem *ictlr = lic->base[i];
+
+		writel_relaxed(lic->cpu_iep[i],
+			       ictlr + ICTLR_CPU_IEP_CLASS);
+		writel_relaxed(~0ul, ictlr + ICTLR_CPU_IER_CLR);
+		writel_relaxed(lic->cpu_ier[i],
+			       ictlr + ICTLR_CPU_IER_SET);
+		writel_relaxed(lic->cop_iep[i],
+			       ictlr + ICTLR_COP_IEP_CLASS);
+		writel_relaxed(~0ul, ictlr + ICTLR_COP_IER_CLR);
+		writel_relaxed(lic->cop_ier[i],
+			       ictlr + ICTLR_COP_IER_SET);
+	}
+	local_irq_restore(flags);
+}
+
+static struct syscore_ops tegra_ictlr_syscore_ops = {
+	.suspend	= tegra_ictlr_suspend,
+	.resume		= tegra_ictlr_resume,
+};
+
+static void tegra_ictlr_syscore_init(void)
+{
+	register_syscore_ops(&tegra_ictlr_syscore_ops);
+}
+#else
+#define tegra_set_wake	NULL
+static inline void tegra_ictlr_syscore_init(void) {}
+#endif
+
+static struct irq_chip tegra_ictlr_chip = {
+	.name			= "LIC",
+	.irq_eoi		= tegra_eoi,
+	.irq_mask		= tegra_mask,
+	.irq_unmask		= tegra_unmask,
+	.irq_retrigger		= tegra_retrigger,
+	.irq_set_wake		= tegra_set_wake,
+	.flags			= IRQCHIP_MASK_ON_SUSPEND,
+#ifdef CONFIG_SMP
+	.irq_set_affinity	= irq_chip_set_affinity_parent,
+#endif
+};
+
+static int tegra_ictlr_domain_xlate(struct irq_domain *domain,
+				    struct device_node *controller,
+				    const u32 *intspec,
+				    unsigned int intsize,
+				    unsigned long *out_hwirq,
+				    unsigned int *out_type)
+{
+	if (domain->of_node != controller)
+		return -EINVAL;	/* Shouldn't happen, really... */
+	if (intsize != 3)
+		return -EINVAL;	/* Not GIC compliant */
+	if (intspec[0] != GIC_SPI)
+		return -EINVAL;	/* No PPI should point to this domain */
+
+	*out_hwirq = intspec[1];
+	*out_type = intspec[2];
+	return 0;
+}
+
+static int tegra_ictlr_domain_alloc(struct irq_domain *domain,
+				    unsigned int virq,
+				    unsigned int nr_irqs, void *data)
+{
+	struct of_phandle_args *args = data;
+	struct of_phandle_args parent_args;
+	struct tegra_ictlr_info *info = domain->host_data;
+	irq_hw_number_t hwirq;
+	unsigned int i;
+
+	if (args->args_count != 3)
+		return -EINVAL;	/* Not GIC compliant */
+	if (args->args[0] != GIC_SPI)
+		return -EINVAL;	/* No PPI should point to this domain */
+
+	hwirq = args->args[1];
+	if (hwirq >= (num_ictlrs * 32))
+		return -EINVAL;
+
+	for (i = 0; i < nr_irqs; i++) {
+		int ictlr = (hwirq + i) / 32;
+
+		irq_domain_set_hwirq_and_chip(domain, virq + i, hwirq + i,
+					      &tegra_ictlr_chip,
+					      &info->base[ictlr]);
+	}
+
+	parent_args = *args;
+	parent_args.np = domain->parent->of_node;
+	return irq_domain_alloc_irqs_parent(domain, virq, nr_irqs, &parent_args);
+}
+
+static void tegra_ictlr_domain_free(struct irq_domain *domain,
+				    unsigned int virq,
+				    unsigned int nr_irqs)
+{
+	unsigned int i;
+
+	for (i = 0; i < nr_irqs; i++) {
+		struct irq_data *d = irq_domain_get_irq_data(domain, virq + i);
+		irq_domain_reset_irq_data(d);
+	}
+}
+
+static const struct irq_domain_ops tegra_ictlr_domain_ops = {
+	.xlate	= tegra_ictlr_domain_xlate,
+	.alloc	= tegra_ictlr_domain_alloc,
+	.free	= tegra_ictlr_domain_free,
+};
+
+static int __init tegra_ictlr_init(struct device_node *node,
+				   struct device_node *parent)
+{
+	struct irq_domain *parent_domain, *domain;
+	const struct of_device_id *match;
+	const struct tegra_ictlr_soc *soc;
+	unsigned int i;
+	int err;
+
+	if (!parent) {
+		pr_err("%s: no parent, giving up\n", node->full_name);
+		return -ENODEV;
+	}
+
+	parent_domain = irq_find_host(parent);
+	if (!parent_domain) {
+		pr_err("%s: unable to obtain parent domain\n", node->full_name);
+		return -ENXIO;
+	}
+
+	match = of_match_node(ictlr_matches, node);
+	if (!match)		/* Should never happen... */
+		return -ENODEV;
+
+	soc = match->data;
+
+	lic = kzalloc(sizeof(*lic), GFP_KERNEL);
+	if (!lic)
+		return -ENOMEM;
+
+	for (i = 0; i < TEGRA_MAX_NUM_ICTLRS; i++) {
+		void __iomem *base;
+
+		base = of_iomap(node, i);
+		if (!base)
+			break;
+
+		lic->base[i] = base;
+
+		/* Disable all interrupts */
+		writel_relaxed(~0UL, base + ICTLR_CPU_IER_CLR);
+		/* All interrupts target IRQ */
+		writel_relaxed(0, base + ICTLR_CPU_IEP_CLASS);
+
+		num_ictlrs++;
+	}
+
+	if (!num_ictlrs) {
+		pr_err("%s: no valid regions, giving up\n", node->full_name);
+		err = -ENOMEM;
+		goto out_free;
+	}
+
+	WARN(num_ictlrs != soc->num_ictlrs,
+	     "%s: Found %u interrupt controllers in DT; expected %u.\n",
+	     node->full_name, num_ictlrs, soc->num_ictlrs);
+
+
+	domain = irq_domain_add_hierarchy(parent_domain, 0, num_ictlrs * 32,
+					  node, &tegra_ictlr_domain_ops,
+					  lic);
+	if (!domain) {
+		pr_err("%s: failed to allocated domain\n", node->full_name);
+		err = -ENOMEM;
+		goto out_unmap;
+	}
+
+	tegra_ictlr_syscore_init();
+
+	pr_info("%s: %d interrupts forwarded to %s\n",
+		node->full_name, num_ictlrs * 32, parent->full_name);
+
+	return 0;
+
+out_unmap:
+	for (i = 0; i < num_ictlrs; i++)
+		iounmap(lic->base[i]);
+out_free:
+	kfree(lic);
+	return err;
+}
+
+IRQCHIP_DECLARE(tegra20_ictlr, "nvidia,tegra20-ictlr", tegra_ictlr_init);
+IRQCHIP_DECLARE(tegra30_ictlr, "nvidia,tegra30-ictlr", tegra_ictlr_init);
+IRQCHIP_DECLARE(tegra210_ictlr, "nvidia,tegra210-ictlr", tegra_ictlr_init);
diff --git a/drivers/irqchip/irq-vf610-mscm-ir.c b/drivers/irqchip/irq-vf610-mscm-ir.c
new file mode 100644
index 0000000..9521057
--- /dev/null
+++ b/drivers/irqchip/irq-vf610-mscm-ir.c
@@ -0,0 +1,212 @@
+/*
+ * Copyright (C) 2014-2015 Toradex AG
+ * Author: Stefan Agner <stefan@agner.ch>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ *
+ * IRQ chip driver for MSCM interrupt router available on Vybrid SoC's.
+ * The interrupt router is between the CPU's interrupt controller and the
+ * peripheral. The router allows to route the peripheral interrupts to
+ * one of the two available CPU's on Vybrid VF6xx SoC's (Cortex-A5 or
+ * Cortex-M4). The router will be configured transparently on a IRQ
+ * request.
+ *
+ * o All peripheral interrupts of the Vybrid SoC can be routed to
+ *   CPU 0, CPU 1 or both. The routing is useful for dual-core
+ *   variants of Vybrid SoC such as VF6xx. This driver routes the
+ *   requested interrupt to the CPU currently running on.
+ *
+ * o It is required to setup the interrupt router even on single-core
+ *   variants of Vybrid.
+ */
+
+#include <linux/cpu_pm.h>
+#include <linux/io.h>
+#include <linux/irq.h>
+#include <linux/irqdomain.h>
+#include <linux/mfd/syscon.h>
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/slab.h>
+#include <linux/regmap.h>
+
+#include "irqchip.h"
+
+#define MSCM_CPxNUM		0x4
+
+#define MSCM_IRSPRC(n)		(0x80 + 2 * (n))
+#define MSCM_IRSPRC_CPEN_MASK	0x3
+
+#define MSCM_IRSPRC_NUM		112
+
+struct vf610_mscm_ir_chip_data {
+	void __iomem *mscm_ir_base;
+	u16 cpu_mask;
+	u16 saved_irsprc[MSCM_IRSPRC_NUM];
+};
+
+static struct vf610_mscm_ir_chip_data *mscm_ir_data;
+
+static inline void vf610_mscm_ir_save(struct vf610_mscm_ir_chip_data *data)
+{
+	int i;
+
+	for (i = 0; i < MSCM_IRSPRC_NUM; i++)
+		data->saved_irsprc[i] = readw_relaxed(data->mscm_ir_base + MSCM_IRSPRC(i));
+}
+
+static inline void vf610_mscm_ir_restore(struct vf610_mscm_ir_chip_data *data)
+{
+	int i;
+
+	for (i = 0; i < MSCM_IRSPRC_NUM; i++)
+		writew_relaxed(data->saved_irsprc[i], data->mscm_ir_base + MSCM_IRSPRC(i));
+}
+
+static int vf610_mscm_ir_notifier(struct notifier_block *self,
+				  unsigned long cmd, void *v)
+{
+	switch (cmd) {
+	case CPU_CLUSTER_PM_ENTER:
+		vf610_mscm_ir_save(mscm_ir_data);
+		break;
+	case CPU_CLUSTER_PM_ENTER_FAILED:
+	case CPU_CLUSTER_PM_EXIT:
+		vf610_mscm_ir_restore(mscm_ir_data);
+		break;
+	}
+
+	return NOTIFY_OK;
+}
+
+static struct notifier_block mscm_ir_notifier_block = {
+	.notifier_call = vf610_mscm_ir_notifier,
+};
+
+static void vf610_mscm_ir_enable(struct irq_data *data)
+{
+	irq_hw_number_t hwirq = data->hwirq;
+	struct vf610_mscm_ir_chip_data *chip_data = data->chip_data;
+	u16 irsprc;
+
+	irsprc = readw_relaxed(chip_data->mscm_ir_base + MSCM_IRSPRC(hwirq));
+	irsprc &= MSCM_IRSPRC_CPEN_MASK;
+
+	WARN_ON(irsprc & ~chip_data->cpu_mask);
+
+	writew_relaxed(chip_data->cpu_mask,
+		       chip_data->mscm_ir_base + MSCM_IRSPRC(hwirq));
+
+	irq_chip_unmask_parent(data);
+}
+
+static void vf610_mscm_ir_disable(struct irq_data *data)
+{
+	irq_hw_number_t hwirq = data->hwirq;
+	struct vf610_mscm_ir_chip_data *chip_data = data->chip_data;
+
+	writew_relaxed(0x0, chip_data->mscm_ir_base + MSCM_IRSPRC(hwirq));
+
+	irq_chip_mask_parent(data);
+}
+
+static struct irq_chip vf610_mscm_ir_irq_chip = {
+	.name			= "mscm-ir",
+	.irq_mask		= irq_chip_mask_parent,
+	.irq_unmask		= irq_chip_unmask_parent,
+	.irq_eoi		= irq_chip_eoi_parent,
+	.irq_enable		= vf610_mscm_ir_enable,
+	.irq_disable		= vf610_mscm_ir_disable,
+	.irq_retrigger		= irq_chip_retrigger_hierarchy,
+	.irq_set_affinity	= irq_chip_set_affinity_parent,
+};
+
+static int vf610_mscm_ir_domain_alloc(struct irq_domain *domain, unsigned int virq,
+				      unsigned int nr_irqs, void *arg)
+{
+	int i;
+	irq_hw_number_t hwirq;
+	struct of_phandle_args *irq_data = arg;
+	struct of_phandle_args gic_data;
+
+	if (irq_data->args_count != 2)
+		return -EINVAL;
+
+	hwirq = irq_data->args[0];
+	for (i = 0; i < nr_irqs; i++)
+		irq_domain_set_hwirq_and_chip(domain, virq + i, hwirq + i,
+					      &vf610_mscm_ir_irq_chip,
+					      domain->host_data);
+
+	gic_data.np = domain->parent->of_node;
+	gic_data.args_count = 3;
+	gic_data.args[0] = GIC_SPI;
+	gic_data.args[1] = irq_data->args[0];
+	gic_data.args[2] = irq_data->args[1];
+	return irq_domain_alloc_irqs_parent(domain, virq, nr_irqs, &gic_data);
+}
+
+static const struct irq_domain_ops mscm_irq_domain_ops = {
+	.xlate = irq_domain_xlate_twocell,
+	.alloc = vf610_mscm_ir_domain_alloc,
+	.free = irq_domain_free_irqs_common,
+};
+
+static int __init vf610_mscm_ir_of_init(struct device_node *node,
+			       struct device_node *parent)
+{
+	struct irq_domain *domain, *domain_parent;
+	struct regmap *mscm_cp_regmap;
+	int ret, cpuid;
+
+	domain_parent = irq_find_host(parent);
+	if (!domain_parent) {
+		pr_err("vf610_mscm_ir: interrupt-parent not found\n");
+		return -EINVAL;
+	}
+
+	mscm_ir_data = kzalloc(sizeof(*mscm_ir_data), GFP_KERNEL);
+	if (!mscm_ir_data)
+		return -ENOMEM;
+
+	mscm_ir_data->mscm_ir_base = of_io_request_and_map(node, 0, "mscm-ir");
+
+	if (!mscm_ir_data->mscm_ir_base) {
+		pr_err("vf610_mscm_ir: unable to map mscm register\n");
+		ret = -ENOMEM;
+		goto out_free;
+	}
+
+	mscm_cp_regmap = syscon_regmap_lookup_by_phandle(node, "fsl,cpucfg");
+	if (IS_ERR(mscm_cp_regmap)) {
+		ret = PTR_ERR(mscm_cp_regmap);
+		pr_err("vf610_mscm_ir: regmap lookup for cpucfg failed\n");
+		goto out_unmap;
+	}
+
+	regmap_read(mscm_cp_regmap, MSCM_CPxNUM, &cpuid);
+	mscm_ir_data->cpu_mask = 0x1 << cpuid;
+
+	domain = irq_domain_add_hierarchy(domain_parent, 0,
+					  MSCM_IRSPRC_NUM, node,
+					  &mscm_irq_domain_ops, mscm_ir_data);
+	if (!domain) {
+		ret = -ENOMEM;
+		goto out_unmap;
+	}
+
+	cpu_pm_register_notifier(&mscm_ir_notifier_block);
+
+	return 0;
+
+out_unmap:
+	iounmap(mscm_ir_data->mscm_ir_base);
+out_free:
+	kfree(mscm_ir_data);
+	return ret;
+}
+IRQCHIP_DECLARE(vf610_mscm_ir, "fsl,vf610-mscm-ir", vf610_mscm_ir_of_init);
diff --git a/drivers/isdn/hardware/mISDN/hfcpci.c b/drivers/isdn/hardware/mISDN/hfcpci.c
index 3c92780..ff48da6 100644
--- a/drivers/isdn/hardware/mISDN/hfcpci.c
+++ b/drivers/isdn/hardware/mISDN/hfcpci.c
@@ -1755,7 +1755,7 @@ init_card(struct hfc_pci *hc)
 		enable_hwirq(hc);
 		spin_unlock_irqrestore(&hc->lock, flags);
 		/* Timeout 80ms */
-		current->state = TASK_UNINTERRUPTIBLE;
+		set_current_state(TASK_UNINTERRUPTIBLE);
 		schedule_timeout((80 * HZ) / 1000);
 		printk(KERN_INFO "HFC PCI: IRQ %d count %d\n",
 		       hc->irq, hc->irqcnt);
diff --git a/drivers/isdn/icn/icn.c b/drivers/isdn/icn/icn.c
index 6a7447c..358a574 100644
--- a/drivers/isdn/icn/icn.c
+++ b/drivers/isdn/icn/icn.c
@@ -1609,7 +1609,7 @@ icn_setup(char *line)
 	if (ints[0] > 1)
 		membase = (unsigned long)ints[2];
 	if (str && *str) {
-		strcpy(sid, str);
+		strlcpy(sid, str, sizeof(sid));
 		icn_id = sid;
 		if ((p = strchr(sid, ','))) {
 			*p++ = 0;
diff --git a/drivers/lguest/Kconfig b/drivers/lguest/Kconfig
index ee035ec..169172d 100644
--- a/drivers/lguest/Kconfig
+++ b/drivers/lguest/Kconfig
@@ -1,6 +1,6 @@
 config LGUEST
 	tristate "Linux hypervisor example code"
-	depends on X86_32 && EVENTFD && TTY
+	depends on X86_32 && EVENTFD && TTY && PCI_DIRECT
 	select HVC_DRIVER
 	---help---
 	  This is a very simple module which allows you to run
diff --git a/drivers/md/dm-io.c b/drivers/md/dm-io.c
index 37de017..74adcd2 100644
--- a/drivers/md/dm-io.c
+++ b/drivers/md/dm-io.c
@@ -289,9 +289,16 @@ static void do_region(int rw, unsigned region, struct dm_io_region *where,
 	struct request_queue *q = bdev_get_queue(where->bdev);
 	unsigned short logical_block_size = queue_logical_block_size(q);
 	sector_t num_sectors;
+	unsigned int uninitialized_var(special_cmd_max_sectors);
 
-	/* Reject unsupported discard requests */
-	if ((rw & REQ_DISCARD) && !blk_queue_discard(q)) {
+	/*
+	 * Reject unsupported discard and write same requests.
+	 */
+	if (rw & REQ_DISCARD)
+		special_cmd_max_sectors = q->limits.max_discard_sectors;
+	else if (rw & REQ_WRITE_SAME)
+		special_cmd_max_sectors = q->limits.max_write_same_sectors;
+	if ((rw & (REQ_DISCARD | REQ_WRITE_SAME)) && special_cmd_max_sectors == 0) {
 		dec_count(io, region, -EOPNOTSUPP);
 		return;
 	}
@@ -317,7 +324,7 @@ static void do_region(int rw, unsigned region, struct dm_io_region *where,
 		store_io_and_region_in_bio(bio, io, region);
 
 		if (rw & REQ_DISCARD) {
-			num_sectors = min_t(sector_t, q->limits.max_discard_sectors, remaining);
+			num_sectors = min_t(sector_t, special_cmd_max_sectors, remaining);
 			bio->bi_iter.bi_size = num_sectors << SECTOR_SHIFT;
 			remaining -= num_sectors;
 		} else if (rw & REQ_WRITE_SAME) {
@@ -326,7 +333,7 @@ static void do_region(int rw, unsigned region, struct dm_io_region *where,
 			 */
 			dp->get_page(dp, &page, &len, &offset);
 			bio_add_page(bio, page, logical_block_size, offset);
-			num_sectors = min_t(sector_t, q->limits.max_write_same_sectors, remaining);
+			num_sectors = min_t(sector_t, special_cmd_max_sectors, remaining);
 			bio->bi_iter.bi_size = num_sectors << SECTOR_SHIFT;
 
 			offset = 0;
diff --git a/drivers/md/dm-snap.c b/drivers/md/dm-snap.c
index 8b204ae2..f83a0f3 100644
--- a/drivers/md/dm-snap.c
+++ b/drivers/md/dm-snap.c
@@ -20,6 +20,8 @@
 #include <linux/log2.h>
 #include <linux/dm-kcopyd.h>
 
+#include "dm.h"
+
 #include "dm-exception-store.h"
 
 #define DM_MSG_PREFIX "snapshots"
@@ -291,12 +293,23 @@ struct origin {
 };
 
 /*
+ * This structure is allocated for each origin target
+ */
+struct dm_origin {
+	struct dm_dev *dev;
+	struct dm_target *ti;
+	unsigned split_boundary;
+	struct list_head hash_list;
+};
+
+/*
  * Size of the hash table for origin volumes. If we make this
  * the size of the minors list then it should be nearly perfect
  */
 #define ORIGIN_HASH_SIZE 256
 #define ORIGIN_MASK      0xFF
 static struct list_head *_origins;
+static struct list_head *_dm_origins;
 static struct rw_semaphore _origins_lock;
 
 static DECLARE_WAIT_QUEUE_HEAD(_pending_exceptions_done);
@@ -310,12 +323,22 @@ static int init_origin_hash(void)
 	_origins = kmalloc(ORIGIN_HASH_SIZE * sizeof(struct list_head),
 			   GFP_KERNEL);
 	if (!_origins) {
-		DMERR("unable to allocate memory");
+		DMERR("unable to allocate memory for _origins");
 		return -ENOMEM;
 	}
-
 	for (i = 0; i < ORIGIN_HASH_SIZE; i++)
 		INIT_LIST_HEAD(_origins + i);
+
+	_dm_origins = kmalloc(ORIGIN_HASH_SIZE * sizeof(struct list_head),
+			      GFP_KERNEL);
+	if (!_dm_origins) {
+		DMERR("unable to allocate memory for _dm_origins");
+		kfree(_origins);
+		return -ENOMEM;
+	}
+	for (i = 0; i < ORIGIN_HASH_SIZE; i++)
+		INIT_LIST_HEAD(_dm_origins + i);
+
 	init_rwsem(&_origins_lock);
 
 	return 0;
@@ -324,6 +347,7 @@ static int init_origin_hash(void)
 static void exit_origin_hash(void)
 {
 	kfree(_origins);
+	kfree(_dm_origins);
 }
 
 static unsigned origin_hash(struct block_device *bdev)
@@ -350,6 +374,30 @@ static void __insert_origin(struct origin *o)
 	list_add_tail(&o->hash_list, sl);
 }
 
+static struct dm_origin *__lookup_dm_origin(struct block_device *origin)
+{
+	struct list_head *ol;
+	struct dm_origin *o;
+
+	ol = &_dm_origins[origin_hash(origin)];
+	list_for_each_entry (o, ol, hash_list)
+		if (bdev_equal(o->dev->bdev, origin))
+			return o;
+
+	return NULL;
+}
+
+static void __insert_dm_origin(struct dm_origin *o)
+{
+	struct list_head *sl = &_dm_origins[origin_hash(o->dev->bdev)];
+	list_add_tail(&o->hash_list, sl);
+}
+
+static void __remove_dm_origin(struct dm_origin *o)
+{
+	list_del(&o->hash_list);
+}
+
 /*
  * _origins_lock must be held when calling this function.
  * Returns number of snapshots registered using the supplied cow device, plus:
@@ -1840,9 +1888,40 @@ static int snapshot_preresume(struct dm_target *ti)
 static void snapshot_resume(struct dm_target *ti)
 {
 	struct dm_snapshot *s = ti->private;
-	struct dm_snapshot *snap_src = NULL, *snap_dest = NULL;
+	struct dm_snapshot *snap_src = NULL, *snap_dest = NULL, *snap_merging = NULL;
+	struct dm_origin *o;
+	struct mapped_device *origin_md = NULL;
+	bool must_restart_merging = false;
 
 	down_read(&_origins_lock);
+
+	o = __lookup_dm_origin(s->origin->bdev);
+	if (o)
+		origin_md = dm_table_get_md(o->ti->table);
+	if (!origin_md) {
+		(void) __find_snapshots_sharing_cow(s, NULL, NULL, &snap_merging);
+		if (snap_merging)
+			origin_md = dm_table_get_md(snap_merging->ti->table);
+	}
+	if (origin_md == dm_table_get_md(ti->table))
+		origin_md = NULL;
+	if (origin_md) {
+		if (dm_hold(origin_md))
+			origin_md = NULL;
+	}
+
+	up_read(&_origins_lock);
+
+	if (origin_md) {
+		dm_internal_suspend_fast(origin_md);
+		if (snap_merging && test_bit(RUNNING_MERGE, &snap_merging->state_bits)) {
+			must_restart_merging = true;
+			stop_merge(snap_merging);
+		}
+	}
+
+	down_read(&_origins_lock);
+
 	(void) __find_snapshots_sharing_cow(s, &snap_src, &snap_dest, NULL);
 	if (snap_src && snap_dest) {
 		down_write(&snap_src->lock);
@@ -1851,8 +1930,16 @@ static void snapshot_resume(struct dm_target *ti)
 		up_write(&snap_dest->lock);
 		up_write(&snap_src->lock);
 	}
+
 	up_read(&_origins_lock);
 
+	if (origin_md) {
+		if (must_restart_merging)
+			start_merge(snap_merging);
+		dm_internal_resume_fast(origin_md);
+		dm_put(origin_md);
+	}
+
 	/* Now we have correct chunk size, reregister */
 	reregister_snapshot(s);
 
@@ -2133,11 +2220,6 @@ static int origin_write_extent(struct dm_snapshot *merging_snap,
  * Origin: maps a linear range of a device, with hooks for snapshotting.
  */
 
-struct dm_origin {
-	struct dm_dev *dev;
-	unsigned split_boundary;
-};
-
 /*
  * Construct an origin mapping: <dev_path>
  * The context for an origin is merely a 'struct dm_dev *'
@@ -2166,6 +2248,7 @@ static int origin_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 		goto bad_open;
 	}
 
+	o->ti = ti;
 	ti->private = o;
 	ti->num_flush_bios = 1;
 
@@ -2180,6 +2263,7 @@ bad_alloc:
 static void origin_dtr(struct dm_target *ti)
 {
 	struct dm_origin *o = ti->private;
+
 	dm_put_device(ti, o->dev);
 	kfree(o);
 }
@@ -2216,6 +2300,19 @@ static void origin_resume(struct dm_target *ti)
 	struct dm_origin *o = ti->private;
 
 	o->split_boundary = get_origin_minimum_chunksize(o->dev->bdev);
+
+	down_write(&_origins_lock);
+	__insert_dm_origin(o);
+	up_write(&_origins_lock);
+}
+
+static void origin_postsuspend(struct dm_target *ti)
+{
+	struct dm_origin *o = ti->private;
+
+	down_write(&_origins_lock);
+	__remove_dm_origin(o);
+	up_write(&_origins_lock);
 }
 
 static void origin_status(struct dm_target *ti, status_type_t type,
@@ -2258,12 +2355,13 @@ static int origin_iterate_devices(struct dm_target *ti,
 
 static struct target_type origin_target = {
 	.name    = "snapshot-origin",
-	.version = {1, 8, 1},
+	.version = {1, 9, 0},
 	.module  = THIS_MODULE,
 	.ctr     = origin_ctr,
 	.dtr     = origin_dtr,
 	.map     = origin_map,
 	.resume  = origin_resume,
+	.postsuspend = origin_postsuspend,
 	.status  = origin_status,
 	.merge	 = origin_merge,
 	.iterate_devices = origin_iterate_devices,
@@ -2271,7 +2369,7 @@ static struct target_type origin_target = {
 
 static struct target_type snapshot_target = {
 	.name    = "snapshot",
-	.version = {1, 12, 0},
+	.version = {1, 13, 0},
 	.module  = THIS_MODULE,
 	.ctr     = snapshot_ctr,
 	.dtr     = snapshot_dtr,
@@ -2285,7 +2383,7 @@ static struct target_type snapshot_target = {
 
 static struct target_type merge_target = {
 	.name    = dm_snapshot_merge_target_name,
-	.version = {1, 2, 0},
+	.version = {1, 3, 0},
 	.module  = THIS_MODULE,
 	.ctr     = snapshot_ctr,
 	.dtr     = snapshot_dtr,
diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
index 654773c..921aafd 100644
--- a/drivers/md/dm-thin.c
+++ b/drivers/md/dm-thin.c
@@ -2358,17 +2358,6 @@ static int thin_bio_map(struct dm_target *ti, struct bio *bio)
 		return DM_MAPIO_REMAPPED;
 
 	case -ENODATA:
-		if (get_pool_mode(tc->pool) == PM_READ_ONLY) {
-			/*
-			 * This block isn't provisioned, and we have no way
-			 * of doing so.
-			 */
-			handle_unserviceable_bio(tc->pool, bio);
-			cell_defer_no_holder(tc, virt_cell);
-			return DM_MAPIO_SUBMITTED;
-		}
-		/* fall through */
-
 	case -EWOULDBLOCK:
 		thin_defer_cell(tc, virt_cell);
 		return DM_MAPIO_SUBMITTED;
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 73f2880..8001fe9 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -433,7 +433,6 @@ static int dm_blk_open(struct block_device *bdev, fmode_t mode)
 
 	dm_get(md);
 	atomic_inc(&md->open_count);
-
 out:
 	spin_unlock(&_minor_lock);
 
@@ -442,16 +441,20 @@ out:
 
 static void dm_blk_close(struct gendisk *disk, fmode_t mode)
 {
-	struct mapped_device *md = disk->private_data;
+	struct mapped_device *md;
 
 	spin_lock(&_minor_lock);
 
+	md = disk->private_data;
+	if (WARN_ON(!md))
+		goto out;
+
 	if (atomic_dec_and_test(&md->open_count) &&
 	    (test_bit(DMF_DEFERRED_REMOVE, &md->flags)))
 		queue_work(deferred_remove_workqueue, &deferred_remove_work);
 
 	dm_put(md);
-
+out:
 	spin_unlock(&_minor_lock);
 }
 
@@ -2241,7 +2244,6 @@ static void free_dev(struct mapped_device *md)
 	int minor = MINOR(disk_devt(md->disk));
 
 	unlock_fs(md);
-	bdput(md->bdev);
 	destroy_workqueue(md->wq);
 
 	if (md->kworker_task)
@@ -2252,19 +2254,22 @@ static void free_dev(struct mapped_device *md)
 		mempool_destroy(md->rq_pool);
 	if (md->bs)
 		bioset_free(md->bs);
-	blk_integrity_unregister(md->disk);
-	del_gendisk(md->disk);
+
 	cleanup_srcu_struct(&md->io_barrier);
 	free_table_devices(&md->table_devices);
-	free_minor(minor);
+	dm_stats_cleanup(&md->stats);
 
 	spin_lock(&_minor_lock);
 	md->disk->private_data = NULL;
 	spin_unlock(&_minor_lock);
-
+	if (blk_get_integrity(md->disk))
+		blk_integrity_unregister(md->disk);
+	del_gendisk(md->disk);
 	put_disk(md->disk);
 	blk_cleanup_queue(md->queue);
-	dm_stats_cleanup(&md->stats);
+	bdput(md->bdev);
+	free_minor(minor);
+
 	module_put(THIS_MODULE);
 	kfree(md);
 }
@@ -2616,6 +2621,19 @@ void dm_get(struct mapped_device *md)
 	BUG_ON(test_bit(DMF_FREEING, &md->flags));
 }
 
+int dm_hold(struct mapped_device *md)
+{
+	spin_lock(&_minor_lock);
+	if (test_bit(DMF_FREEING, &md->flags)) {
+		spin_unlock(&_minor_lock);
+		return -EBUSY;
+	}
+	dm_get(md);
+	spin_unlock(&_minor_lock);
+	return 0;
+}
+EXPORT_SYMBOL_GPL(dm_hold);
+
 const char *dm_device_name(struct mapped_device *md)
 {
 	return md->name;
@@ -2629,8 +2647,9 @@ static void __dm_destroy(struct mapped_device *md, bool wait)
 
 	might_sleep();
 
-	spin_lock(&_minor_lock);
 	map = dm_get_live_table(md, &srcu_idx);
+
+	spin_lock(&_minor_lock);
 	idr_replace(&_minor_idr, MINOR_ALLOCED, MINOR(disk_devt(dm_disk(md))));
 	set_bit(DMF_FREEING, &md->flags);
 	spin_unlock(&_minor_lock);
@@ -2638,10 +2657,16 @@ static void __dm_destroy(struct mapped_device *md, bool wait)
 	if (dm_request_based(md))
 		flush_kthread_worker(&md->kworker);
 
+	/*
+	 * Take suspend_lock so that presuspend and postsuspend methods
+	 * do not race with internal suspend.
+	 */
+	mutex_lock(&md->suspend_lock);
 	if (!dm_suspended_md(md)) {
 		dm_table_presuspend_targets(map);
 		dm_table_postsuspend_targets(map);
 	}
+	mutex_unlock(&md->suspend_lock);
 
 	/* dm_put_live_table must be before msleep, otherwise deadlock is possible */
 	dm_put_live_table(md, srcu_idx);
@@ -3115,6 +3140,7 @@ void dm_internal_suspend_fast(struct mapped_device *md)
 	flush_workqueue(md->wq);
 	dm_wait_for_completion(md, TASK_UNINTERRUPTIBLE);
 }
+EXPORT_SYMBOL_GPL(dm_internal_suspend_fast);
 
 void dm_internal_resume_fast(struct mapped_device *md)
 {
@@ -3126,6 +3152,7 @@ void dm_internal_resume_fast(struct mapped_device *md)
 done:
 	mutex_unlock(&md->suspend_lock);
 }
+EXPORT_SYMBOL_GPL(dm_internal_resume_fast);
 
 /*-----------------------------------------------------------------
  * Event notification.
diff --git a/drivers/md/md.c b/drivers/md/md.c
index c8d2bac..e617878 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -249,6 +249,7 @@ static void md_make_request(struct request_queue *q, struct bio *bio)
 	const int rw = bio_data_dir(bio);
 	struct mddev *mddev = q->queuedata;
 	unsigned int sectors;
+	int cpu;
 
 	if (mddev == NULL || mddev->pers == NULL
 	    || !mddev->ready) {
@@ -284,7 +285,10 @@ static void md_make_request(struct request_queue *q, struct bio *bio)
 	sectors = bio_sectors(bio);
 	mddev->pers->make_request(mddev, bio);
 
-	generic_start_io_acct(rw, sectors, &mddev->gendisk->part0);
+	cpu = part_stat_lock();
+	part_stat_inc(cpu, &mddev->gendisk->part0, ios[rw]);
+	part_stat_add(cpu, &mddev->gendisk->part0, sectors[rw], sectors);
+	part_stat_unlock();
 
 	if (atomic_dec_and_test(&mddev->active_io) && mddev->suspended)
 		wake_up(&mddev->sb_wait);
@@ -2555,7 +2559,7 @@ state_store(struct md_rdev *rdev, const char *buf, size_t len)
 	return err ? err : len;
 }
 static struct rdev_sysfs_entry rdev_state =
-__ATTR(state, S_IRUGO|S_IWUSR, state_show, state_store);
+__ATTR_PREALLOC(state, S_IRUGO|S_IWUSR, state_show, state_store);
 
 static ssize_t
 errors_show(struct md_rdev *rdev, char *page)
@@ -3638,7 +3642,8 @@ resync_start_store(struct mddev *mddev, const char *buf, size_t len)
 	return err ?: len;
 }
 static struct md_sysfs_entry md_resync_start =
-__ATTR(resync_start, S_IRUGO|S_IWUSR, resync_start_show, resync_start_store);
+__ATTR_PREALLOC(resync_start, S_IRUGO|S_IWUSR,
+		resync_start_show, resync_start_store);
 
 /*
  * The array state can be:
@@ -3851,7 +3856,7 @@ array_state_store(struct mddev *mddev, const char *buf, size_t len)
 	return err ?: len;
 }
 static struct md_sysfs_entry md_array_state =
-__ATTR(array_state, S_IRUGO|S_IWUSR, array_state_show, array_state_store);
+__ATTR_PREALLOC(array_state, S_IRUGO|S_IWUSR, array_state_show, array_state_store);
 
 static ssize_t
 max_corrected_read_errors_show(struct mddev *mddev, char *page) {
@@ -4101,7 +4106,7 @@ out_unlock:
 }
 
 static struct md_sysfs_entry md_metadata =
-__ATTR(metadata_version, S_IRUGO|S_IWUSR, metadata_show, metadata_store);
+__ATTR_PREALLOC(metadata_version, S_IRUGO|S_IWUSR, metadata_show, metadata_store);
 
 static ssize_t
 action_show(struct mddev *mddev, char *page)
@@ -4189,7 +4194,7 @@ action_store(struct mddev *mddev, const char *page, size_t len)
 }
 
 static struct md_sysfs_entry md_scan_mode =
-__ATTR(sync_action, S_IRUGO|S_IWUSR, action_show, action_store);
+__ATTR_PREALLOC(sync_action, S_IRUGO|S_IWUSR, action_show, action_store);
 
 static ssize_t
 last_sync_action_show(struct mddev *mddev, char *page)
@@ -4335,7 +4340,8 @@ sync_completed_show(struct mddev *mddev, char *page)
 	return sprintf(page, "%llu / %llu\n", resync, max_sectors);
 }
 
-static struct md_sysfs_entry md_sync_completed = __ATTR_RO(sync_completed);
+static struct md_sysfs_entry md_sync_completed =
+	__ATTR_PREALLOC(sync_completed, S_IRUGO, sync_completed_show, NULL);
 
 static ssize_t
 min_sync_show(struct mddev *mddev, char *page)
@@ -5078,7 +5084,8 @@ int md_run(struct mddev *mddev)
 	}
 	if (err) {
 		mddev_detach(mddev);
-		pers->free(mddev, mddev->private);
+		if (mddev->private)
+			pers->free(mddev, mddev->private);
 		module_put(pers->owner);
 		bitmap_destroy(mddev);
 		return err;
diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c
index a13f738..3b5d7f7 100644
--- a/drivers/md/raid0.c
+++ b/drivers/md/raid0.c
@@ -313,7 +313,7 @@ static struct strip_zone *find_zone(struct r0conf *conf,
 
 /*
  * remaps the bio to the target device. we separate two flows.
- * power 2 flow and a general flow for the sake of perfromance
+ * power 2 flow and a general flow for the sake of performance
 */
 static struct md_rdev *map_sector(struct mddev *mddev, struct strip_zone *zone,
 				sector_t sector, sector_t *sector_offset)
@@ -467,8 +467,6 @@ static int raid0_run(struct mddev *mddev)
 	dump_zones(mddev);
 
 	ret = md_integrity_register(mddev);
-	if (ret)
-		raid0_free(mddev, conf);
 
 	return ret;
 }
@@ -526,6 +524,7 @@ static void raid0_make_request(struct mddev *mddev, struct bio *bio)
 			split = bio;
 		}
 
+		sector = bio->bi_iter.bi_sector;
 		zone = find_zone(mddev->private, &sector);
 		tmp_dev = map_sector(mddev, zone, sector, &sector);
 		split->bi_bdev = tmp_dev->bdev;
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index 4153da5..d34e238 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -560,7 +560,7 @@ static int read_balance(struct r1conf *conf, struct r1bio *r1_bio, int *max_sect
 		if (test_bit(WriteMostly, &rdev->flags)) {
 			/* Don't balance among write-mostly, just
 			 * use the first as a last resort */
-			if (best_disk < 0) {
+			if (best_dist_disk < 0) {
 				if (is_badblock(rdev, this_sector, sectors,
 						&first_bad, &bad_sectors)) {
 					if (first_bad < this_sector)
@@ -569,7 +569,8 @@ static int read_balance(struct r1conf *conf, struct r1bio *r1_bio, int *max_sect
 					best_good_sectors = first_bad - this_sector;
 				} else
 					best_good_sectors = sectors;
-				best_disk = disk;
+				best_dist_disk = disk;
+				best_pending_disk = disk;
 			}
 			continue;
 		}
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index e75d48c..cd2f96b 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -5121,12 +5121,17 @@ static inline sector_t sync_request(struct mddev *mddev, sector_t sector_nr, int
 		schedule_timeout_uninterruptible(1);
 	}
 	/* Need to check if array will still be degraded after recovery/resync
-	 * We don't need to check the 'failed' flag as when that gets set,
-	 * recovery aborts.
+	 * Note in case of > 1 drive failures it's possible we're rebuilding
+	 * one drive while leaving another faulty drive in array.
 	 */
-	for (i = 0; i < conf->raid_disks; i++)
-		if (conf->disks[i].rdev == NULL)
+	rcu_read_lock();
+	for (i = 0; i < conf->raid_disks; i++) {
+		struct md_rdev *rdev = ACCESS_ONCE(conf->disks[i].rdev);
+
+		if (rdev == NULL || test_bit(Faulty, &rdev->flags))
 			still_degraded = 1;
+	}
+	rcu_read_unlock();
 
 	bitmap_start_sync(mddev->bitmap, sector_nr, &sync_blocks, still_degraded);
 
diff --git a/drivers/media/dvb-frontends/rtl2832.c b/drivers/media/dvb-frontends/rtl2832.c
index 5d2d8f4..67faa8d 100644
--- a/drivers/media/dvb-frontends/rtl2832.c
+++ b/drivers/media/dvb-frontends/rtl2832.c
@@ -1240,7 +1240,7 @@ static int rtl2832_probe(struct i2c_client *client,
 	dev->regmap_config.max_register = 5 * 0x100,
 	dev->regmap_config.ranges = regmap_range_cfg,
 	dev->regmap_config.num_ranges = ARRAY_SIZE(regmap_range_cfg),
-	dev->regmap_config.cache_type = REGCACHE_RBTREE,
+	dev->regmap_config.cache_type = REGCACHE_NONE,
 	dev->regmap = regmap_init(&client->dev, &regmap_bus, client,
 				  &dev->regmap_config);
 	if (IS_ERR(dev->regmap)) {
diff --git a/drivers/media/pci/cx23885/cx23885-417.c b/drivers/media/pci/cx23885/cx23885-417.c
index e4901a5..63c0ee5 100644
--- a/drivers/media/pci/cx23885/cx23885-417.c
+++ b/drivers/media/pci/cx23885/cx23885-417.c
@@ -1339,14 +1339,13 @@ static int vidioc_querycap(struct file *file, void  *priv,
 	strlcpy(cap->driver, dev->name, sizeof(cap->driver));
 	strlcpy(cap->card, cx23885_boards[tsport->dev->board].name,
 		sizeof(cap->card));
-	sprintf(cap->bus_info, "PCI:%s", pci_name(dev->pci));
-	cap->capabilities =
-		V4L2_CAP_VIDEO_CAPTURE |
-		V4L2_CAP_READWRITE     |
-		V4L2_CAP_STREAMING     |
-		0;
+	sprintf(cap->bus_info, "PCIe:%s", pci_name(dev->pci));
+	cap->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_READWRITE |
+			   V4L2_CAP_STREAMING;
 	if (dev->tuner_type != TUNER_ABSENT)
-		cap->capabilities |= V4L2_CAP_TUNER;
+		cap->device_caps |= V4L2_CAP_TUNER;
+	cap->capabilities = cap->device_caps | V4L2_CAP_VBI_CAPTURE |
+		V4L2_CAP_AUDIO | V4L2_CAP_DEVICE_CAPS;
 
 	return 0;
 }
diff --git a/drivers/media/platform/s5p-jpeg/jpeg-core.c b/drivers/media/platform/s5p-jpeg/jpeg-core.c
index 12f7452..a92ff42 100644
--- a/drivers/media/platform/s5p-jpeg/jpeg-core.c
+++ b/drivers/media/platform/s5p-jpeg/jpeg-core.c
@@ -1845,6 +1845,9 @@ static void exynos4_jpeg_set_img_addr(struct s5p_jpeg_ctx *ctx)
 	struct s5p_jpeg_addr jpeg_addr;
 	u32 pix_size, padding_bytes = 0;
 
+	jpeg_addr.cb = 0;
+	jpeg_addr.cr = 0;
+
 	pix_size = ctx->cap_q.w * ctx->cap_q.h;
 
 	if (ctx->mode == S5P_JPEG_ENCODE) {
diff --git a/drivers/media/platform/s5p-jpeg/jpeg-hw-exynos3250.c b/drivers/media/platform/s5p-jpeg/jpeg-hw-exynos3250.c
index e8c2cad..0974b9a 100644
--- a/drivers/media/platform/s5p-jpeg/jpeg-hw-exynos3250.c
+++ b/drivers/media/platform/s5p-jpeg/jpeg-hw-exynos3250.c
@@ -20,7 +20,7 @@
 
 void exynos3250_jpeg_reset(void __iomem *regs)
 {
-	u32 reg = 0;
+	u32 reg = 1;
 	int count = 1000;
 
 	writel(1, regs + EXYNOS3250_SW_RESET);
diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc.c b/drivers/media/platform/s5p-mfc/s5p_mfc.c
index 8e44a59..98374e8 100644
--- a/drivers/media/platform/s5p-mfc/s5p_mfc.c
+++ b/drivers/media/platform/s5p-mfc/s5p_mfc.c
@@ -833,6 +833,7 @@ static int s5p_mfc_open(struct file *file)
 	q->type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
 	q->io_modes = VB2_MMAP;
 	q->drv_priv = &ctx->fh;
+	q->lock = &dev->mfc_mutex;
 	if (vdev == dev->vfd_dec) {
 		q->io_modes = VB2_MMAP;
 		q->ops = get_dec_queue_ops();
diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc_common.h b/drivers/media/platform/s5p-mfc/s5p_mfc_common.h
index 15f7663..24262bb 100644
--- a/drivers/media/platform/s5p-mfc/s5p_mfc_common.h
+++ b/drivers/media/platform/s5p-mfc/s5p_mfc_common.h
@@ -29,7 +29,7 @@
 
 /* Offset base used to differentiate between CAPTURE and OUTPUT
 *  while mmaping */
-#define DST_QUEUE_OFF_BASE      (TASK_SIZE / 2)
+#define DST_QUEUE_OFF_BASE	(1 << 30)
 
 #define MFC_BANK1_ALLOC_CTX	0
 #define MFC_BANK2_ALLOC_CTX	1
diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc_opr.h b/drivers/media/platform/s5p-mfc/s5p_mfc_opr.h
index de2b8c6..22dfb3e 100644
--- a/drivers/media/platform/s5p-mfc/s5p_mfc_opr.h
+++ b/drivers/media/platform/s5p-mfc/s5p_mfc_opr.h
@@ -302,7 +302,7 @@ struct s5p_mfc_hw_ops {
 	void (*write_info)(struct s5p_mfc_ctx *ctx, unsigned int data,
 			unsigned int ofs);
 	unsigned int (*read_info)(struct s5p_mfc_ctx *ctx,
-			unsigned int ofs);
+			unsigned long ofs);
 	int (*get_dspl_y_adr)(struct s5p_mfc_dev *dev);
 	int (*get_dec_y_adr)(struct s5p_mfc_dev *dev);
 	int (*get_dspl_status)(struct s5p_mfc_dev *dev);
diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc_opr_v5.c b/drivers/media/platform/s5p-mfc/s5p_mfc_opr_v5.c
index 0c4fcf2..b09bcd1 100644
--- a/drivers/media/platform/s5p-mfc/s5p_mfc_opr_v5.c
+++ b/drivers/media/platform/s5p-mfc/s5p_mfc_opr_v5.c
@@ -263,15 +263,15 @@ static void s5p_mfc_release_dev_context_buffer_v5(struct s5p_mfc_dev *dev)
 static void s5p_mfc_write_info_v5(struct s5p_mfc_ctx *ctx, unsigned int data,
 			unsigned int ofs)
 {
-	writel(data, (volatile void __iomem *)(ctx->shm.virt + ofs));
+	writel(data, (void *)(ctx->shm.virt + ofs));
 	wmb();
 }
 
 static unsigned int s5p_mfc_read_info_v5(struct s5p_mfc_ctx *ctx,
-				unsigned int ofs)
+				unsigned long ofs)
 {
 	rmb();
-	return readl((volatile void __iomem *)(ctx->shm.virt + ofs));
+	return readl((void *)(ctx->shm.virt + ofs));
 }
 
 static void s5p_mfc_dec_calc_dpb_size_v5(struct s5p_mfc_ctx *ctx)
diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc_opr_v6.c b/drivers/media/platform/s5p-mfc/s5p_mfc_opr_v6.c
index d826c58..cefad18 100644
--- a/drivers/media/platform/s5p-mfc/s5p_mfc_opr_v6.c
+++ b/drivers/media/platform/s5p-mfc/s5p_mfc_opr_v6.c
@@ -1852,17 +1852,17 @@ static void s5p_mfc_write_info_v6(struct s5p_mfc_ctx *ctx, unsigned int data,
 		unsigned int ofs)
 {
 	s5p_mfc_clock_on();
-	writel(data, (volatile void __iomem *)((unsigned long)ofs));
+	writel(data, (void *)((unsigned long)ofs));
 	s5p_mfc_clock_off();
 }
 
 static unsigned int
-s5p_mfc_read_info_v6(struct s5p_mfc_ctx *ctx, unsigned int ofs)
+s5p_mfc_read_info_v6(struct s5p_mfc_ctx *ctx, unsigned long ofs)
 {
 	int ret;
 
 	s5p_mfc_clock_on();
-	ret = readl((volatile void __iomem *)((unsigned long)ofs));
+	ret = readl((void *)ofs);
 	s5p_mfc_clock_off();
 
 	return ret;
diff --git a/drivers/media/platform/s5p-tv/Kconfig b/drivers/media/platform/s5p-tv/Kconfig
index 5a1835d..697aaed 100644
--- a/drivers/media/platform/s5p-tv/Kconfig
+++ b/drivers/media/platform/s5p-tv/Kconfig
@@ -20,6 +20,7 @@ if VIDEO_SAMSUNG_S5P_TV
 config VIDEO_SAMSUNG_S5P_HDMI
 	tristate "Samsung HDMI Driver"
 	depends on VIDEO_V4L2
+	depends on I2C
 	depends on VIDEO_SAMSUNG_S5P_TV
 	select VIDEO_SAMSUNG_S5P_HDMIPHY
 	help
diff --git a/drivers/media/platform/sh_veu.c b/drivers/media/platform/sh_veu.c
index a901b62..2554f37 100644
--- a/drivers/media/platform/sh_veu.c
+++ b/drivers/media/platform/sh_veu.c
@@ -1158,6 +1158,7 @@ static int sh_veu_probe(struct platform_device *pdev)
 	}
 
 	*vdev = sh_veu_videodev;
+	vdev->v4l2_dev = &veu->v4l2_dev;
 	spin_lock_init(&veu->lock);
 	mutex_init(&veu->fop_lock);
 	vdev->lock = &veu->fop_lock;
diff --git a/drivers/media/platform/soc_camera/atmel-isi.c b/drivers/media/platform/soc_camera/atmel-isi.c
index 8526bf5..c835beb 100644
--- a/drivers/media/platform/soc_camera/atmel-isi.c
+++ b/drivers/media/platform/soc_camera/atmel-isi.c
@@ -843,6 +843,8 @@ static int isi_camera_set_bus_param(struct soc_camera_device *icd)
 	if (isi->pdata.full_mode)
 		cfg1 |= ISI_CFG1_FULL_MODE;
 
+	cfg1 |= ISI_CFG1_THMASK_BEATS_16;
+
 	isi_writel(isi, ISI_CTRL, ISI_CTRL_DIS);
 	isi_writel(isi, ISI_CFG1, cfg1);
 
diff --git a/drivers/media/platform/soc_camera/soc_camera.c b/drivers/media/platform/soc_camera/soc_camera.c
index cee7b56..66634b4 100644
--- a/drivers/media/platform/soc_camera/soc_camera.c
+++ b/drivers/media/platform/soc_camera/soc_camera.c
@@ -1665,7 +1665,7 @@ eclkreg:
 eaddpdev:
 	platform_device_put(sasc->pdev);
 eallocpdev:
-	devm_kfree(ici->v4l2_dev.dev, sasc);
+	devm_kfree(ici->v4l2_dev.dev, info);
 	dev_err(ici->v4l2_dev.dev, "group probe failed: %d\n", ret);
 
 	return ret;
diff --git a/drivers/media/usb/dvb-usb-v2/rtl28xxu.c b/drivers/media/usb/dvb-usb-v2/rtl28xxu.c
index 77dcfdf..87fc0fe 100644
--- a/drivers/media/usb/dvb-usb-v2/rtl28xxu.c
+++ b/drivers/media/usb/dvb-usb-v2/rtl28xxu.c
@@ -780,8 +780,6 @@ static int rtl2832u_frontend_callback(void *adapter_priv, int component,
 		case TUNER_RTL2832_TUA9001:
 			return rtl2832u_tua9001_tuner_callback(d, cmd, arg);
 		}
-	default:
-		return -EINVAL;
 	}
 
 	return 0;
diff --git a/drivers/media/usb/gspca/Kconfig b/drivers/media/usb/gspca/Kconfig
index 60af3b1..3fd94fe 100644
--- a/drivers/media/usb/gspca/Kconfig
+++ b/drivers/media/usb/gspca/Kconfig
@@ -1,6 +1,7 @@
 menuconfig USB_GSPCA
 	tristate "GSPCA based webcams"
 	depends on VIDEO_V4L2
+	depends on INPUT || INPUT=n
 	default m
 	---help---
 	  Say Y here if you want to enable selecting webcams based
diff --git a/drivers/media/v4l2-core/videobuf2-core.c b/drivers/media/v4l2-core/videobuf2-core.c
index bc08a82..cc16e76 100644
--- a/drivers/media/v4l2-core/videobuf2-core.c
+++ b/drivers/media/v4l2-core/videobuf2-core.c
@@ -3230,18 +3230,13 @@ int vb2_thread_stop(struct vb2_queue *q)
 
 	if (threadio == NULL)
 		return 0;
-	call_void_qop(q, wait_finish, q);
 	threadio->stop = true;
-	vb2_internal_streamoff(q, q->type);
-	call_void_qop(q, wait_prepare, q);
+	/* Wake up all pending sleeps in the thread */
+	vb2_queue_error(q);
 	err = kthread_stop(threadio->thread);
-	q->fileio = NULL;
-	fileio->req.count = 0;
-	vb2_reqbufs(q, &fileio->req);
-	kfree(fileio);
+	__vb2_cleanup_fileio(q);
 	threadio->thread = NULL;
 	kfree(threadio);
-	q->fileio = NULL;
 	q->threadio = NULL;
 	return err;
 }
diff --git a/drivers/media/v4l2-core/videobuf2-dma-contig.c b/drivers/media/v4l2-core/videobuf2-dma-contig.c
index b481d20..69e0483 100644
--- a/drivers/media/v4l2-core/videobuf2-dma-contig.c
+++ b/drivers/media/v4l2-core/videobuf2-dma-contig.c
@@ -632,8 +632,7 @@ static void *vb2_dc_get_userptr(void *alloc_ctx, unsigned long vaddr,
 	}
 
 	/* extract page list from userspace mapping */
-	ret = vb2_dc_get_user_pages(start, pages, n_pages, vma,
-				    dma_dir == DMA_FROM_DEVICE);
+	ret = vb2_dc_get_user_pages(start, pages, n_pages, vma, dma_dir);
 	if (ret) {
 		unsigned long pfn;
 		if (vb2_dc_get_user_pfn(start, n_pages, vma, &pfn) == 0) {
diff --git a/drivers/mfd/ab8500-sysctrl.c b/drivers/mfd/ab8500-sysctrl.c
index cfff0b6..0d18256 100644
--- a/drivers/mfd/ab8500-sysctrl.c
+++ b/drivers/mfd/ab8500-sysctrl.c
@@ -49,7 +49,9 @@ static void ab8500_power_off(void)
 		if (!psy)
 			continue;
 
-		ret = psy->get_property(psy, POWER_SUPPLY_PROP_ONLINE, &val);
+		ret = power_supply_get_property(psy, POWER_SUPPLY_PROP_ONLINE,
+				&val);
+		power_supply_put(psy);
 
 		if (!ret && val.intval) {
 			charger_present = true;
@@ -63,8 +65,8 @@ static void ab8500_power_off(void)
 	/* Check if battery is known */
 	psy = power_supply_get_by_name("ab8500_btemp");
 	if (psy) {
-		ret = psy->get_property(psy, POWER_SUPPLY_PROP_TECHNOLOGY,
-					&val);
+		ret = power_supply_get_property(psy,
+				POWER_SUPPLY_PROP_TECHNOLOGY, &val);
 		if (!ret && val.intval != POWER_SUPPLY_TECHNOLOGY_UNKNOWN) {
 			printk(KERN_INFO
 			       "Charger \"%s\" is connected with known battery."
@@ -72,6 +74,7 @@ static void ab8500_power_off(void)
 			       pss[i]);
 			machine_restart("charging");
 		}
+		power_supply_put(psy);
 	}
 
 shutdown:
diff --git a/drivers/mfd/axp20x.c b/drivers/mfd/axp20x.c
index b1b580a..0acbe52 100644
--- a/drivers/mfd/axp20x.c
+++ b/drivers/mfd/axp20x.c
@@ -87,7 +87,7 @@ static struct resource axp20x_pek_resources[] = {
 	},
 };
 
-static struct resource axp288_battery_resources[] = {
+static struct resource axp288_fuel_gauge_resources[] = {
 	{
 		.start = AXP288_IRQ_QWBTU,
 		.end   = AXP288_IRQ_QWBTU,
@@ -350,9 +350,9 @@ static struct mfd_cell axp288_cells[] = {
 		.resources = axp288_charger_resources,
 	},
 	{
-		.name = "axp288_battery",
-		.num_resources = ARRAY_SIZE(axp288_battery_resources),
-		.resources = axp288_battery_resources,
+		.name = "axp288_fuel_gauge",
+		.num_resources = ARRAY_SIZE(axp288_fuel_gauge_resources),
+		.resources = axp288_fuel_gauge_resources,
 	},
 	{
 		.name = "axp288_pmic_acpi",
diff --git a/drivers/mfd/kempld-core.c b/drivers/mfd/kempld-core.c
index f38ec42..5615522 100644
--- a/drivers/mfd/kempld-core.c
+++ b/drivers/mfd/kempld-core.c
@@ -739,7 +739,7 @@ static int __init kempld_init(void)
 		for (id = kempld_dmi_table;
 		     id->matches[0].slot != DMI_NONE; id++)
 			if (strstr(id->ident, force_device_id))
-				if (id->callback && id->callback(id))
+				if (id->callback && !id->callback(id))
 					break;
 		if (id->matches[0].slot == DMI_NONE)
 			return -ENODEV;
diff --git a/drivers/mfd/rtsx_usb.c b/drivers/mfd/rtsx_usb.c
index ede5024..dbd907d 100644
--- a/drivers/mfd/rtsx_usb.c
+++ b/drivers/mfd/rtsx_usb.c
@@ -196,18 +196,27 @@ EXPORT_SYMBOL_GPL(rtsx_usb_ep0_write_register);
 int rtsx_usb_ep0_read_register(struct rtsx_ucr *ucr, u16 addr, u8 *data)
 {
 	u16 value;
+	u8 *buf;
+	int ret;
 
 	if (!data)
 		return -EINVAL;
-	*data = 0;
+
+	buf = kzalloc(sizeof(u8), GFP_KERNEL);
+	if (!buf)
+		return -ENOMEM;
 
 	addr |= EP0_READ_REG_CMD << EP0_OP_SHIFT;
 	value = swab16(addr);
 
-	return usb_control_msg(ucr->pusb_dev,
+	ret = usb_control_msg(ucr->pusb_dev,
 			usb_rcvctrlpipe(ucr->pusb_dev, 0), RTSX_USB_REQ_REG_OP,
 			USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
-			value, 0, data, 1, 100);
+			value, 0, buf, 1, 100);
+	*data = *buf;
+
+	kfree(buf);
+	return ret;
 }
 EXPORT_SYMBOL_GPL(rtsx_usb_ep0_read_register);
 
@@ -288,18 +297,27 @@ static int rtsx_usb_get_status_with_bulk(struct rtsx_ucr *ucr, u16 *status)
 int rtsx_usb_get_card_status(struct rtsx_ucr *ucr, u16 *status)
 {
 	int ret;
+	u16 *buf;
 
 	if (!status)
 		return -EINVAL;
 
-	if (polling_pipe == 0)
+	if (polling_pipe == 0) {
+		buf = kzalloc(sizeof(u16), GFP_KERNEL);
+		if (!buf)
+			return -ENOMEM;
+
 		ret = usb_control_msg(ucr->pusb_dev,
 				usb_rcvctrlpipe(ucr->pusb_dev, 0),
 				RTSX_USB_REQ_POLL,
 				USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
-				0, 0, status, 2, 100);
-	else
+				0, 0, buf, 2, 100);
+		*status = *buf;
+
+		kfree(buf);
+	} else {
 		ret = rtsx_usb_get_status_with_bulk(ucr, status);
+	}
 
 	/* usb_control_msg may return positive when success */
 	if (ret < 0)
diff --git a/drivers/misc/enclosure.c b/drivers/misc/enclosure.c
index 38552a3..65fed71 100644
--- a/drivers/misc/enclosure.c
+++ b/drivers/misc/enclosure.c
@@ -202,16 +202,17 @@ static void enclosure_remove_links(struct enclosure_component *cdev)
 {
 	char name[ENCLOSURE_NAME_SIZE];
 
+	enclosure_link_name(cdev, name);
+
 	/*
 	 * In odd circumstances, like multipath devices, something else may
 	 * already have removed the links, so check for this condition first.
 	 */
-	if (!cdev->dev->kobj.sd)
-		return;
+	if (cdev->dev->kobj.sd)
+		sysfs_remove_link(&cdev->dev->kobj, name);
 
-	enclosure_link_name(cdev, name);
-	sysfs_remove_link(&cdev->dev->kobj, name);
-	sysfs_remove_link(&cdev->cdev.kobj, "device");
+	if (cdev->cdev.kobj.sd)
+		sysfs_remove_link(&cdev->cdev.kobj, "device");
 }
 
 static int enclosure_add_links(struct enclosure_component *cdev)
diff --git a/drivers/misc/mei/init.c b/drivers/misc/mei/init.c
index 9306219..6ad049a 100644
--- a/drivers/misc/mei/init.c
+++ b/drivers/misc/mei/init.c
@@ -341,6 +341,8 @@ void mei_stop(struct mei_device *dev)
 
 	dev->dev_state = MEI_DEV_POWER_DOWN;
 	mei_reset(dev);
+	/* move device to disabled state unconditionally */
+	dev->dev_state = MEI_DEV_DISABLED;
 
 	mutex_unlock(&dev->device_lock);
 
diff --git a/drivers/misc/sgi-xp/xpc_main.c b/drivers/misc/sgi-xp/xpc_main.c
index 82dc5748..7f32712 100644
--- a/drivers/misc/sgi-xp/xpc_main.c
+++ b/drivers/misc/sgi-xp/xpc_main.c
@@ -1210,7 +1210,7 @@ xpc_system_die(struct notifier_block *nb, unsigned long event, void *_die_args)
 
 		if (((die_args->trapnr == X86_TRAP_MF) ||
 		     (die_args->trapnr == X86_TRAP_XF)) &&
-		    !user_mode_vm(die_args->regs))
+		    !user_mode(die_args->regs))
 			xpc_die_deactivate();
 
 		break;
diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index 23f10f7..c296bc0 100644
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -897,6 +897,7 @@ int __mmc_claim_host(struct mmc_host *host, atomic_t *abort)
 	DECLARE_WAITQUEUE(wait, current);
 	unsigned long flags;
 	int stop;
+	bool pm = false;
 
 	might_sleep();
 
@@ -916,15 +917,18 @@ int __mmc_claim_host(struct mmc_host *host, atomic_t *abort)
 		host->claimed = 1;
 		host->claimer = current;
 		host->claim_cnt += 1;
+		if (host->claim_cnt == 1)
+			pm = true;
 	} else
 		wake_up(&host->wq);
 	spin_unlock_irqrestore(&host->lock, flags);
 	remove_wait_queue(&host->wq, &wait);
-	if (host->ops->enable && !stop && host->claim_cnt == 1)
-		host->ops->enable(host);
+
+	if (pm)
+		pm_runtime_get_sync(mmc_dev(host));
+
 	return stop;
 }
-
 EXPORT_SYMBOL(__mmc_claim_host);
 
 /**
@@ -940,9 +944,6 @@ void mmc_release_host(struct mmc_host *host)
 
 	WARN_ON(!host->claimed);
 
-	if (host->ops->disable && host->claim_cnt == 1)
-		host->ops->disable(host);
-
 	spin_lock_irqsave(&host->lock, flags);
 	if (--host->claim_cnt) {
 		/* Release for nested claim */
@@ -952,6 +953,8 @@ void mmc_release_host(struct mmc_host *host)
 		host->claimer = NULL;
 		spin_unlock_irqrestore(&host->lock, flags);
 		wake_up(&host->wq);
+		pm_runtime_mark_last_busy(mmc_dev(host));
+		pm_runtime_put_autosuspend(mmc_dev(host));
 	}
 }
 EXPORT_SYMBOL(mmc_release_host);
diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
index 1d41e85..c84131e 100644
--- a/drivers/mmc/core/mmc.c
+++ b/drivers/mmc/core/mmc.c
@@ -11,6 +11,7 @@
  */
 
 #include <linux/err.h>
+#include <linux/of.h>
 #include <linux/slab.h>
 #include <linux/stat.h>
 #include <linux/pm_runtime.h>
@@ -336,6 +337,8 @@ static int mmc_decode_ext_csd(struct mmc_card *card, u8 *ext_csd)
 {
 	int err = 0, idx;
 	unsigned int part_size;
+	struct device_node *np;
+	bool broken_hpi = false;
 
 	/* Version is coded in the CSD_STRUCTURE byte in the EXT_CSD register */
 	card->ext_csd.raw_ext_csd_structure = ext_csd[EXT_CSD_STRUCTURE];
@@ -349,6 +352,11 @@ static int mmc_decode_ext_csd(struct mmc_card *card, u8 *ext_csd)
 		}
 	}
 
+	np = mmc_of_find_child_device(card->host, 0);
+	if (np && of_device_is_compatible(np, "mmc-card"))
+		broken_hpi = of_property_read_bool(np, "broken-hpi");
+	of_node_put(np);
+
 	/*
 	 * The EXT_CSD format is meant to be forward compatible. As long
 	 * as CSD_STRUCTURE does not change, all values for EXT_CSD_REV
@@ -494,7 +502,7 @@ static int mmc_decode_ext_csd(struct mmc_card *card, u8 *ext_csd)
 		}
 
 		/* check whether the eMMC card supports HPI */
-		if (ext_csd[EXT_CSD_HPI_FEATURES] & 0x1) {
+		if (!broken_hpi && (ext_csd[EXT_CSD_HPI_FEATURES] & 0x1)) {
 			card->ext_csd.hpi = 1;
 			if (ext_csd[EXT_CSD_HPI_FEATURES] & 0x2)
 				card->ext_csd.hpi_cmd =	MMC_STOP_TRANSMISSION;
diff --git a/drivers/mmc/core/pwrseq.c b/drivers/mmc/core/pwrseq.c
index 8623561..ab21297 100644
--- a/drivers/mmc/core/pwrseq.c
+++ b/drivers/mmc/core/pwrseq.c
@@ -19,7 +19,7 @@
 
 struct mmc_pwrseq_match {
 	const char *compatible;
-	int (*alloc)(struct mmc_host *host, struct device *dev);
+	struct mmc_pwrseq *(*alloc)(struct mmc_host *host, struct device *dev);
 };
 
 static struct mmc_pwrseq_match pwrseq_match[] = {
@@ -52,6 +52,7 @@ int mmc_pwrseq_alloc(struct mmc_host *host)
 	struct platform_device *pdev;
 	struct device_node *np;
 	struct mmc_pwrseq_match *match;
+	struct mmc_pwrseq *pwrseq;
 	int ret = 0;
 
 	np = of_parse_phandle(host->parent->of_node, "mmc-pwrseq", 0);
@@ -70,9 +71,14 @@ int mmc_pwrseq_alloc(struct mmc_host *host)
 		goto err;
 	}
 
-	ret = match->alloc(host, &pdev->dev);
-	if (!ret)
-		dev_info(host->parent, "allocated mmc-pwrseq\n");
+	pwrseq = match->alloc(host, &pdev->dev);
+	if (IS_ERR(pwrseq)) {
+		ret = PTR_ERR(host->pwrseq);
+		goto err;
+	}
+
+	host->pwrseq = pwrseq;
+	dev_info(host->parent, "allocated mmc-pwrseq\n");
 
 err:
 	of_node_put(np);
@@ -109,4 +115,6 @@ void mmc_pwrseq_free(struct mmc_host *host)
 
 	if (pwrseq && pwrseq->ops && pwrseq->ops->free)
 		pwrseq->ops->free(host);
+
+	host->pwrseq = NULL;
 }
diff --git a/drivers/mmc/core/pwrseq.h b/drivers/mmc/core/pwrseq.h
index aba3409..096da48 100644
--- a/drivers/mmc/core/pwrseq.h
+++ b/drivers/mmc/core/pwrseq.h
@@ -27,8 +27,10 @@ void mmc_pwrseq_post_power_on(struct mmc_host *host);
 void mmc_pwrseq_power_off(struct mmc_host *host);
 void mmc_pwrseq_free(struct mmc_host *host);
 
-int mmc_pwrseq_simple_alloc(struct mmc_host *host, struct device *dev);
-int mmc_pwrseq_emmc_alloc(struct mmc_host *host, struct device *dev);
+struct mmc_pwrseq *mmc_pwrseq_simple_alloc(struct mmc_host *host,
+					   struct device *dev);
+struct mmc_pwrseq *mmc_pwrseq_emmc_alloc(struct mmc_host *host,
+					 struct device *dev);
 
 #else
 
diff --git a/drivers/mmc/core/pwrseq_emmc.c b/drivers/mmc/core/pwrseq_emmc.c
index a2d5459..9d6d2fb 100644
--- a/drivers/mmc/core/pwrseq_emmc.c
+++ b/drivers/mmc/core/pwrseq_emmc.c
@@ -49,7 +49,6 @@ static void mmc_pwrseq_emmc_free(struct mmc_host *host)
 	unregister_restart_handler(&pwrseq->reset_nb);
 	gpiod_put(pwrseq->reset_gpio);
 	kfree(pwrseq);
-	host->pwrseq = NULL;
 }
 
 static struct mmc_pwrseq_ops mmc_pwrseq_emmc_ops = {
@@ -67,14 +66,15 @@ static int mmc_pwrseq_emmc_reset_nb(struct notifier_block *this,
 	return NOTIFY_DONE;
 }
 
-int mmc_pwrseq_emmc_alloc(struct mmc_host *host, struct device *dev)
+struct mmc_pwrseq *mmc_pwrseq_emmc_alloc(struct mmc_host *host,
+					 struct device *dev)
 {
 	struct mmc_pwrseq_emmc *pwrseq;
 	int ret = 0;
 
 	pwrseq = kzalloc(sizeof(struct mmc_pwrseq_emmc), GFP_KERNEL);
 	if (!pwrseq)
-		return -ENOMEM;
+		return ERR_PTR(-ENOMEM);
 
 	pwrseq->reset_gpio = gpiod_get_index(dev, "reset", 0, GPIOD_OUT_LOW);
 	if (IS_ERR(pwrseq->reset_gpio)) {
@@ -92,10 +92,9 @@ int mmc_pwrseq_emmc_alloc(struct mmc_host *host, struct device *dev)
 	register_restart_handler(&pwrseq->reset_nb);
 
 	pwrseq->pwrseq.ops = &mmc_pwrseq_emmc_ops;
-	host->pwrseq = &pwrseq->pwrseq;
 
-	return 0;
+	return &pwrseq->pwrseq;
 free:
 	kfree(pwrseq);
-	return ret;
+	return ERR_PTR(ret);
 }
diff --git a/drivers/mmc/core/pwrseq_simple.c b/drivers/mmc/core/pwrseq_simple.c
index e9f1d8d..0b14b83 100644
--- a/drivers/mmc/core/pwrseq_simple.c
+++ b/drivers/mmc/core/pwrseq_simple.c
@@ -85,7 +85,6 @@ static void mmc_pwrseq_simple_free(struct mmc_host *host)
 		clk_put(pwrseq->ext_clk);
 
 	kfree(pwrseq);
-	host->pwrseq = NULL;
 }
 
 static struct mmc_pwrseq_ops mmc_pwrseq_simple_ops = {
@@ -95,7 +94,8 @@ static struct mmc_pwrseq_ops mmc_pwrseq_simple_ops = {
 	.free = mmc_pwrseq_simple_free,
 };
 
-int mmc_pwrseq_simple_alloc(struct mmc_host *host, struct device *dev)
+struct mmc_pwrseq *mmc_pwrseq_simple_alloc(struct mmc_host *host,
+					   struct device *dev)
 {
 	struct mmc_pwrseq_simple *pwrseq;
 	int i, nr_gpios, ret = 0;
@@ -107,7 +107,7 @@ int mmc_pwrseq_simple_alloc(struct mmc_host *host, struct device *dev)
 	pwrseq = kzalloc(sizeof(struct mmc_pwrseq_simple) + nr_gpios *
 			 sizeof(struct gpio_desc *), GFP_KERNEL);
 	if (!pwrseq)
-		return -ENOMEM;
+		return ERR_PTR(-ENOMEM);
 
 	pwrseq->ext_clk = clk_get(dev, "ext_clock");
 	if (IS_ERR(pwrseq->ext_clk) &&
@@ -124,7 +124,7 @@ int mmc_pwrseq_simple_alloc(struct mmc_host *host, struct device *dev)
 		    PTR_ERR(pwrseq->reset_gpios[i]) != -ENOSYS) {
 			ret = PTR_ERR(pwrseq->reset_gpios[i]);
 
-			while (--i)
+			while (i--)
 				gpiod_put(pwrseq->reset_gpios[i]);
 
 			goto clk_put;
@@ -133,13 +133,12 @@ int mmc_pwrseq_simple_alloc(struct mmc_host *host, struct device *dev)
 
 	pwrseq->nr_gpios = nr_gpios;
 	pwrseq->pwrseq.ops = &mmc_pwrseq_simple_ops;
-	host->pwrseq = &pwrseq->pwrseq;
 
-	return 0;
+	return &pwrseq->pwrseq;
 clk_put:
 	if (!IS_ERR(pwrseq->ext_clk))
 		clk_put(pwrseq->ext_clk);
 free:
 	kfree(pwrseq);
-	return ret;
+	return ERR_PTR(ret);
 }
diff --git a/drivers/mmc/core/sdio.c b/drivers/mmc/core/sdio.c
index ce6cc47..5bc6c7d 100644
--- a/drivers/mmc/core/sdio.c
+++ b/drivers/mmc/core/sdio.c
@@ -293,19 +293,22 @@ static int sdio_enable_4bit_bus(struct mmc_card *card)
 	int err;
 
 	if (card->type == MMC_TYPE_SDIO)
-		return sdio_enable_wide(card);
-
-	if ((card->host->caps & MMC_CAP_4_BIT_DATA) &&
-		(card->scr.bus_widths & SD_SCR_BUS_WIDTH_4)) {
+		err = sdio_enable_wide(card);
+	else if ((card->host->caps & MMC_CAP_4_BIT_DATA) &&
+		 (card->scr.bus_widths & SD_SCR_BUS_WIDTH_4)) {
 		err = mmc_app_set_bus_width(card, MMC_BUS_WIDTH_4);
 		if (err)
 			return err;
+		err = sdio_enable_wide(card);
+		if (err <= 0)
+			mmc_app_set_bus_width(card, MMC_BUS_WIDTH_1);
 	} else
 		return 0;
 
-	err = sdio_enable_wide(card);
-	if (err <= 0)
-		mmc_app_set_bus_width(card, MMC_BUS_WIDTH_1);
+	if (err > 0) {
+		mmc_set_bus_width(card->host, MMC_BUS_WIDTH_4);
+		err = 0;
+	}
 
 	return err;
 }
@@ -547,13 +550,8 @@ static int mmc_sdio_init_uhs_card(struct mmc_card *card)
 	/*
 	 * Switch to wider bus (if supported).
 	 */
-	if (card->host->caps & MMC_CAP_4_BIT_DATA) {
+	if (card->host->caps & MMC_CAP_4_BIT_DATA)
 		err = sdio_enable_4bit_bus(card);
-		if (err > 0) {
-			mmc_set_bus_width(card->host, MMC_BUS_WIDTH_4);
-			err = 0;
-		}
-	}
 
 	/* Set the driver strength for the card */
 	sdio_select_driver_type(card);
@@ -803,9 +801,7 @@ try_again:
 		 * Switch to wider bus (if supported).
 		 */
 		err = sdio_enable_4bit_bus(card);
-		if (err > 0)
-			mmc_set_bus_width(card->host, MMC_BUS_WIDTH_4);
-		else if (err)
+		if (err)
 			goto remove;
 	}
 finish:
@@ -983,10 +979,6 @@ static int mmc_sdio_resume(struct mmc_host *host)
 	} else if (mmc_card_keep_power(host) && mmc_card_wake_sdio_irq(host)) {
 		/* We may have switched to 1-bit mode during suspend */
 		err = sdio_enable_4bit_bus(host->card);
-		if (err > 0) {
-			mmc_set_bus_width(host, MMC_BUS_WIDTH_4);
-			err = 0;
-		}
 	}
 
 	if (!err && host->sdio_irqs) {
diff --git a/drivers/mmc/host/Kconfig b/drivers/mmc/host/Kconfig
index 61ac63a..7f4db90 100644
--- a/drivers/mmc/host/Kconfig
+++ b/drivers/mmc/host/Kconfig
@@ -132,7 +132,7 @@ config MMC_SDHCI_OF_ARASAN
 config MMC_SDHCI_OF_ESDHC
 	tristate "SDHCI OF support for the Freescale eSDHC controller"
 	depends on MMC_SDHCI_PLTFM
-	depends on PPC_OF
+	depends on PPC
 	select MMC_SDHCI_BIG_ENDIAN_32BIT_BYTE_SWAPPER
 	help
 	  This selects the Freescale eSDHC controller support.
@@ -144,7 +144,7 @@ config MMC_SDHCI_OF_ESDHC
 config MMC_SDHCI_OF_HLWD
 	tristate "SDHCI OF support for the Nintendo Wii SDHCI controllers"
 	depends on MMC_SDHCI_PLTFM
-	depends on PPC_OF
+	depends on PPC
 	select MMC_SDHCI_BIG_ENDIAN_32BIT_BYTE_SWAPPER
 	help
 	  This selects the Secure Digital Host Controller Interface (SDHCI)
@@ -230,7 +230,7 @@ config MMC_SDHCI_PXAV3
 	tristate "Marvell MMP2 SD Host Controller support (PXAV3)"
 	depends on CLKDEV_LOOKUP
 	depends on MMC_SDHCI_PLTFM
-	depends on ARCH_MMP || COMPILE_TEST
+	depends on ARCH_BERLIN || ARCH_MMP || ARCH_MVEBU || COMPILE_TEST
 	default CPU_MMP2
 	help
 	  This selects the Marvell(R) PXAV3 SD Host Controller.
@@ -255,6 +255,7 @@ config MMC_SDHCI_PXAV2
 config MMC_SDHCI_SPEAR
 	tristate "SDHCI support on ST SPEAr platform"
 	depends on MMC_SDHCI && PLAT_SPEAR
+	depends on OF
 	help
 	  This selects the Secure Digital Host Controller Interface (SDHCI)
 	  often referrered to as the HSMMC block in some of the ST SPEAR range
@@ -307,6 +308,20 @@ config MMC_SDHCI_F_SDH30
 
 	  If unsure, say N.
 
+config MMC_SDHCI_IPROC
+	tristate "SDHCI platform support for the iProc SD/MMC Controller"
+	depends on ARCH_BCM_IPROC || COMPILE_TEST
+	depends on MMC_SDHCI_PLTFM
+	default ARCH_BCM_IPROC
+	select MMC_SDHCI_IO_ACCESSORS
+	help
+	  This selects the iProc SD/MMC controller.
+
+	  If you have an IPROC platform with SD or MMC devices,
+	  say Y or M here.
+
+	  If unsure, say N.
+
 config MMC_MOXART
 	tristate "MOXART SD/MMC Host Controller support"
 	depends on ARCH_MOXART && MMC
diff --git a/drivers/mmc/host/Makefile b/drivers/mmc/host/Makefile
index 6a7cfe0..711e913 100644
--- a/drivers/mmc/host/Makefile
+++ b/drivers/mmc/host/Makefile
@@ -71,6 +71,7 @@ obj-$(CONFIG_MMC_SDHCI_OF_ESDHC)	+= sdhci-of-esdhc.o
 obj-$(CONFIG_MMC_SDHCI_OF_HLWD)		+= sdhci-of-hlwd.o
 obj-$(CONFIG_MMC_SDHCI_BCM_KONA)	+= sdhci-bcm-kona.o
 obj-$(CONFIG_MMC_SDHCI_BCM2835)		+= sdhci-bcm2835.o
+obj-$(CONFIG_MMC_SDHCI_IPROC)		+= sdhci-iproc.o
 obj-$(CONFIG_MMC_SDHCI_MSM)		+= sdhci-msm.o
 obj-$(CONFIG_MMC_SDHCI_ST)		+= sdhci-st.o
 
diff --git a/drivers/mmc/host/atmel-mci-regs.h b/drivers/mmc/host/atmel-mci-regs.h
index c97001e..0aa44e6 100644
--- a/drivers/mmc/host/atmel-mci-regs.h
+++ b/drivers/mmc/host/atmel-mci-regs.h
@@ -135,10 +135,17 @@
 #define ATMCI_REGS_SIZE		0x100
 
 /* Register access macros */
-#define atmci_readl(port,reg)				\
+#ifdef CONFIG_AVR32
+#define atmci_readl(port, reg)			\
 	__raw_readl((port)->regs + reg)
-#define atmci_writel(port,reg,value)			\
+#define atmci_writel(port, reg, value)			\
 	__raw_writel((value), (port)->regs + reg)
+#else
+#define atmci_readl(port, reg)			\
+	readl_relaxed((port)->regs + reg)
+#define atmci_writel(port, reg, value)			\
+	writel_relaxed((value), (port)->regs + reg)
+#endif
 
 /* On AVR chips the Peripheral DMA Controller is not connected to MCI. */
 #ifdef CONFIG_AVR32
diff --git a/drivers/mmc/host/dw_mmc-exynos.c b/drivers/mmc/host/dw_mmc-exynos.c
index fe32948..e761eb1 100644
--- a/drivers/mmc/host/dw_mmc-exynos.c
+++ b/drivers/mmc/host/dw_mmc-exynos.c
@@ -40,7 +40,12 @@ struct dw_mci_exynos_priv_data {
 	u8				ciu_div;
 	u32				sdr_timing;
 	u32				ddr_timing;
+	u32				hs400_timing;
+	u32				tuned_sample;
 	u32				cur_speed;
+	u32				dqs_delay;
+	u32				saved_dqs_en;
+	u32				saved_strobe_ctrl;
 };
 
 static struct dw_mci_exynos_compatible {
@@ -71,6 +76,21 @@ static struct dw_mci_exynos_compatible {
 	},
 };
 
+static inline u8 dw_mci_exynos_get_ciu_div(struct dw_mci *host)
+{
+	struct dw_mci_exynos_priv_data *priv = host->priv;
+
+	if (priv->ctrl_type == DW_MCI_TYPE_EXYNOS4412)
+		return EXYNOS4412_FIXED_CIU_CLK_DIV;
+	else if (priv->ctrl_type == DW_MCI_TYPE_EXYNOS4210)
+		return EXYNOS4210_FIXED_CIU_CLK_DIV;
+	else if (priv->ctrl_type == DW_MCI_TYPE_EXYNOS7 ||
+			priv->ctrl_type == DW_MCI_TYPE_EXYNOS7_SMU)
+		return SDMMC_CLKSEL_GET_DIV(mci_readl(host, CLKSEL64)) + 1;
+	else
+		return SDMMC_CLKSEL_GET_DIV(mci_readl(host, CLKSEL)) + 1;
+}
+
 static int dw_mci_exynos_priv_init(struct dw_mci *host)
 {
 	struct dw_mci_exynos_priv_data *priv = host->priv;
@@ -85,6 +105,16 @@ static int dw_mci_exynos_priv_init(struct dw_mci *host)
 			   SDMMC_MPSCTRL_NON_SECURE_WRITE_BIT);
 	}
 
+	if (priv->ctrl_type >= DW_MCI_TYPE_EXYNOS5420) {
+		priv->saved_strobe_ctrl = mci_readl(host, HS400_DLINE_CTRL);
+		priv->saved_dqs_en = mci_readl(host, HS400_DQS_EN);
+		priv->saved_dqs_en |= AXI_NON_BLOCKING_WR;
+		mci_writel(host, HS400_DQS_EN, priv->saved_dqs_en);
+		if (!priv->dqs_delay)
+			priv->dqs_delay =
+				DQS_CTRL_GET_RD_DELAY(priv->saved_strobe_ctrl);
+	}
+
 	return 0;
 }
 
@@ -97,6 +127,26 @@ static int dw_mci_exynos_setup_clock(struct dw_mci *host)
 	return 0;
 }
 
+static void dw_mci_exynos_set_clksel_timing(struct dw_mci *host, u32 timing)
+{
+	struct dw_mci_exynos_priv_data *priv = host->priv;
+	u32 clksel;
+
+	if (priv->ctrl_type == DW_MCI_TYPE_EXYNOS7 ||
+		priv->ctrl_type == DW_MCI_TYPE_EXYNOS7_SMU)
+		clksel = mci_readl(host, CLKSEL64);
+	else
+		clksel = mci_readl(host, CLKSEL);
+
+	clksel = (clksel & ~SDMMC_CLKSEL_TIMING_MASK) | timing;
+
+	if (priv->ctrl_type == DW_MCI_TYPE_EXYNOS7 ||
+		priv->ctrl_type == DW_MCI_TYPE_EXYNOS7_SMU)
+		mci_writel(host, CLKSEL64, clksel);
+	else
+		mci_writel(host, CLKSEL, clksel);
+}
+
 #ifdef CONFIG_PM_SLEEP
 static int dw_mci_exynos_suspend(struct device *dev)
 {
@@ -172,30 +222,38 @@ static void dw_mci_exynos_prepare_command(struct dw_mci *host, u32 *cmdr)
 	}
 }
 
-static void dw_mci_exynos_set_ios(struct dw_mci *host, struct mmc_ios *ios)
+static void dw_mci_exynos_config_hs400(struct dw_mci *host, u32 timing)
 {
 	struct dw_mci_exynos_priv_data *priv = host->priv;
-	unsigned int wanted = ios->clock;
-	unsigned long actual;
-	u8 div = priv->ciu_div + 1;
+	u32 dqs, strobe;
 
-	if (ios->timing == MMC_TIMING_MMC_DDR52) {
-		if (priv->ctrl_type == DW_MCI_TYPE_EXYNOS7 ||
-			priv->ctrl_type == DW_MCI_TYPE_EXYNOS7_SMU)
-			mci_writel(host, CLKSEL64, priv->ddr_timing);
-		else
-			mci_writel(host, CLKSEL, priv->ddr_timing);
-		/* Should be double rate for DDR mode */
-		if (ios->bus_width == MMC_BUS_WIDTH_8)
-			wanted <<= 1;
+	/*
+	 * Not supported to configure register
+	 * related to HS400
+	 */
+	if (priv->ctrl_type < DW_MCI_TYPE_EXYNOS5420)
+		return;
+
+	dqs = priv->saved_dqs_en;
+	strobe = priv->saved_strobe_ctrl;
+
+	if (timing == MMC_TIMING_MMC_HS400) {
+		dqs |= DATA_STROBE_EN;
+		strobe = DQS_CTRL_RD_DELAY(strobe, priv->dqs_delay);
 	} else {
-		if (priv->ctrl_type == DW_MCI_TYPE_EXYNOS7 ||
-			priv->ctrl_type == DW_MCI_TYPE_EXYNOS7_SMU)
-			mci_writel(host, CLKSEL64, priv->sdr_timing);
-		else
-			mci_writel(host, CLKSEL, priv->sdr_timing);
+		dqs &= ~DATA_STROBE_EN;
 	}
 
+	mci_writel(host, HS400_DQS_EN, dqs);
+	mci_writel(host, HS400_DLINE_CTRL, strobe);
+}
+
+static void dw_mci_exynos_adjust_clock(struct dw_mci *host, unsigned int wanted)
+{
+	struct dw_mci_exynos_priv_data *priv = host->priv;
+	unsigned long actual;
+	u8 div;
+	int ret;
 	/*
 	 * Don't care if wanted clock is zero or
 	 * ciu clock is unavailable
@@ -207,17 +265,52 @@ static void dw_mci_exynos_set_ios(struct dw_mci *host, struct mmc_ios *ios)
 	if (wanted < EXYNOS_CCLKIN_MIN)
 		wanted = EXYNOS_CCLKIN_MIN;
 
-	if (wanted != priv->cur_speed) {
-		int ret = clk_set_rate(host->ciu_clk, wanted * div);
-		if (ret)
-			dev_warn(host->dev,
-				"failed to set clk-rate %u error: %d\n",
-				 wanted * div, ret);
-		actual = clk_get_rate(host->ciu_clk);
-		host->bus_hz = actual / div;
-		priv->cur_speed = wanted;
-		host->current_speed = 0;
+	if (wanted == priv->cur_speed)
+		return;
+
+	div = dw_mci_exynos_get_ciu_div(host);
+	ret = clk_set_rate(host->ciu_clk, wanted * div);
+	if (ret)
+		dev_warn(host->dev,
+			"failed to set clk-rate %u error: %d\n",
+			wanted * div, ret);
+	actual = clk_get_rate(host->ciu_clk);
+	host->bus_hz = actual / div;
+	priv->cur_speed = wanted;
+	host->current_speed = 0;
+}
+
+static void dw_mci_exynos_set_ios(struct dw_mci *host, struct mmc_ios *ios)
+{
+	struct dw_mci_exynos_priv_data *priv = host->priv;
+	unsigned int wanted = ios->clock;
+	u32 timing = ios->timing, clksel;
+
+	switch (timing) {
+	case MMC_TIMING_MMC_HS400:
+		/* Update tuned sample timing */
+		clksel = SDMMC_CLKSEL_UP_SAMPLE(
+				priv->hs400_timing, priv->tuned_sample);
+		wanted <<= 1;
+		break;
+	case MMC_TIMING_MMC_DDR52:
+		clksel = priv->ddr_timing;
+		/* Should be double rate for DDR mode */
+		if (ios->bus_width == MMC_BUS_WIDTH_8)
+			wanted <<= 1;
+		break;
+	default:
+		clksel = priv->sdr_timing;
 	}
+
+	/* Set clock timing for the requested speed mode*/
+	dw_mci_exynos_set_clksel_timing(host, clksel);
+
+	/* Configure setting for HS400 */
+	dw_mci_exynos_config_hs400(host, timing);
+
+	/* Configure clock rate */
+	dw_mci_exynos_adjust_clock(host, wanted);
 }
 
 static int dw_mci_exynos_parse_dt(struct dw_mci *host)
@@ -260,6 +353,16 @@ static int dw_mci_exynos_parse_dt(struct dw_mci *host)
 		return ret;
 
 	priv->ddr_timing = SDMMC_CLKSEL_TIMING(timing[0], timing[1], div);
+
+	ret = of_property_read_u32_array(np,
+			"samsung,dw-mshc-hs400-timing", timing, 2);
+	if (!ret && of_property_read_u32(np,
+				"samsung,read-strobe-delay", &priv->dqs_delay))
+		dev_dbg(host->dev,
+			"read-strobe-delay is not found, assuming usage of default value\n");
+
+	priv->hs400_timing = SDMMC_CLKSEL_TIMING(timing[0], timing[1],
+						HS400_FIXED_CIU_CLK_DIV);
 	host->priv = priv;
 	return 0;
 }
@@ -285,7 +388,7 @@ static inline void dw_mci_exynos_set_clksmpl(struct dw_mci *host, u8 sample)
 		clksel = mci_readl(host, CLKSEL64);
 	else
 		clksel = mci_readl(host, CLKSEL);
-	clksel = (clksel & ~0x7) | SDMMC_CLKSEL_CCLK_SAMPLE(sample);
+	clksel = SDMMC_CLKSEL_UP_SAMPLE(clksel, sample);
 	if (priv->ctrl_type == DW_MCI_TYPE_EXYNOS7 ||
 		priv->ctrl_type == DW_MCI_TYPE_EXYNOS7_SMU)
 		mci_writel(host, CLKSEL64, clksel);
@@ -304,13 +407,16 @@ static inline u8 dw_mci_exynos_move_next_clksmpl(struct dw_mci *host)
 		clksel = mci_readl(host, CLKSEL64);
 	else
 		clksel = mci_readl(host, CLKSEL);
+
 	sample = (clksel + 1) & 0x7;
-	clksel = (clksel & ~0x7) | sample;
+	clksel = SDMMC_CLKSEL_UP_SAMPLE(clksel, sample);
+
 	if (priv->ctrl_type == DW_MCI_TYPE_EXYNOS7 ||
 		priv->ctrl_type == DW_MCI_TYPE_EXYNOS7_SMU)
 		mci_writel(host, CLKSEL64, clksel);
 	else
 		mci_writel(host, CLKSEL, clksel);
+
 	return sample;
 }
 
@@ -343,6 +449,7 @@ out:
 static int dw_mci_exynos_execute_tuning(struct dw_mci_slot *slot)
 {
 	struct dw_mci *host = slot->host;
+	struct dw_mci_exynos_priv_data *priv = host->priv;
 	struct mmc_host *mmc = slot->mmc;
 	u8 start_smpl, smpl, candiates = 0;
 	s8 found = -1;
@@ -360,14 +467,27 @@ static int dw_mci_exynos_execute_tuning(struct dw_mci_slot *slot)
 	} while (start_smpl != smpl);
 
 	found = dw_mci_exynos_get_best_clksmpl(candiates);
-	if (found >= 0)
+	if (found >= 0) {
 		dw_mci_exynos_set_clksmpl(host, found);
-	else
+		priv->tuned_sample = found;
+	} else {
 		ret = -EIO;
+	}
 
 	return ret;
 }
 
+static int dw_mci_exynos_prepare_hs400_tuning(struct dw_mci *host,
+					struct mmc_ios *ios)
+{
+	struct dw_mci_exynos_priv_data *priv = host->priv;
+
+	dw_mci_exynos_set_clksel_timing(host, priv->hs400_timing);
+	dw_mci_exynos_adjust_clock(host, (ios->clock) << 1);
+
+	return 0;
+}
+
 /* Common capabilities of Exynos4/Exynos5 SoC */
 static unsigned long exynos_dwmmc_caps[4] = {
 	MMC_CAP_1_8V_DDR | MMC_CAP_8_BIT_DATA | MMC_CAP_CMD23,
@@ -384,6 +504,7 @@ static const struct dw_mci_drv_data exynos_drv_data = {
 	.set_ios		= dw_mci_exynos_set_ios,
 	.parse_dt		= dw_mci_exynos_parse_dt,
 	.execute_tuning		= dw_mci_exynos_execute_tuning,
+	.prepare_hs400_tuning	= dw_mci_exynos_prepare_hs400_tuning,
 };
 
 static const struct of_device_id dw_mci_exynos_match[] = {
diff --git a/drivers/mmc/host/dw_mmc-exynos.h b/drivers/mmc/host/dw_mmc-exynos.h
index 7872ce5..595c934 100644
--- a/drivers/mmc/host/dw_mmc-exynos.h
+++ b/drivers/mmc/host/dw_mmc-exynos.h
@@ -12,20 +12,36 @@
 #ifndef _DW_MMC_EXYNOS_H_
 #define _DW_MMC_EXYNOS_H_
 
-/* Extended Register's Offset */
 #define SDMMC_CLKSEL			0x09C
 #define SDMMC_CLKSEL64			0x0A8
 
+/* Extended Register's Offset */
+#define SDMMC_HS400_DQS_EN		0x180
+#define SDMMC_HS400_ASYNC_FIFO_CTRL	0x184
+#define SDMMC_HS400_DLINE_CTRL		0x188
+
 /* CLKSEL register defines */
 #define SDMMC_CLKSEL_CCLK_SAMPLE(x)	(((x) & 7) << 0)
 #define SDMMC_CLKSEL_CCLK_DRIVE(x)	(((x) & 7) << 16)
 #define SDMMC_CLKSEL_CCLK_DIVIDER(x)	(((x) & 7) << 24)
 #define SDMMC_CLKSEL_GET_DRV_WD3(x)	(((x) >> 16) & 0x7)
+#define SDMMC_CLKSEL_GET_DIV(x)		(((x) >> 24) & 0x7)
+#define SDMMC_CLKSEL_UP_SAMPLE(x, y)	(((x) & ~SDMMC_CLKSEL_CCLK_SAMPLE(7)) |\
+					 SDMMC_CLKSEL_CCLK_SAMPLE(y))
 #define SDMMC_CLKSEL_TIMING(x, y, z)	(SDMMC_CLKSEL_CCLK_SAMPLE(x) |	\
 					 SDMMC_CLKSEL_CCLK_DRIVE(y) |	\
 					 SDMMC_CLKSEL_CCLK_DIVIDER(z))
+#define SDMMC_CLKSEL_TIMING_MASK	SDMMC_CLKSEL_TIMING(0x7, 0x7, 0x7)
 #define SDMMC_CLKSEL_WAKEUP_INT		BIT(11)
 
+/* RCLK_EN register defines */
+#define DATA_STROBE_EN			BIT(0)
+#define AXI_NON_BLOCKING_WR	BIT(7)
+
+/* DLINE_CTRL register defines */
+#define DQS_CTRL_RD_DELAY(x, y)		(((x) & ~0x3FF) | ((y) & 0x3FF))
+#define DQS_CTRL_GET_RD_DELAY(x)	((x) & 0x3FF)
+
 /* Protector Register */
 #define SDMMC_EMMCP_BASE	0x1000
 #define SDMMC_MPSECURITY	(SDMMC_EMMCP_BASE + 0x0010)
@@ -49,6 +65,7 @@
 /* Fixed clock divider */
 #define EXYNOS4210_FIXED_CIU_CLK_DIV	2
 #define EXYNOS4412_FIXED_CIU_CLK_DIV	4
+#define HS400_FIXED_CIU_CLK_DIV		1
 
 /* Minimal required clock frequency for cclkin, unit: HZ */
 #define EXYNOS_CCLKIN_MIN	50000000
diff --git a/drivers/mmc/host/dw_mmc-rockchip.c b/drivers/mmc/host/dw_mmc-rockchip.c
index e2a726a..dbf166f 100644
--- a/drivers/mmc/host/dw_mmc-rockchip.c
+++ b/drivers/mmc/host/dw_mmc-rockchip.c
@@ -76,12 +76,20 @@ static int dw_mci_rockchip_init(struct dw_mci *host)
 	return 0;
 }
 
+/* Common capabilities of RK3288 SoC */
+static unsigned long dw_mci_rk3288_dwmmc_caps[4] = {
+	MMC_CAP_RUNTIME_RESUME, /* emmc */
+	MMC_CAP_RUNTIME_RESUME, /* sdmmc */
+	MMC_CAP_RUNTIME_RESUME, /* sdio0 */
+	MMC_CAP_RUNTIME_RESUME, /* sdio1 */
+};
 static const struct dw_mci_drv_data rk2928_drv_data = {
 	.prepare_command        = dw_mci_rockchip_prepare_command,
 	.init			= dw_mci_rockchip_init,
 };
 
 static const struct dw_mci_drv_data rk3288_drv_data = {
+	.caps			= dw_mci_rk3288_dwmmc_caps,
 	.prepare_command        = dw_mci_rockchip_prepare_command,
 	.set_ios		= dw_mci_rk3288_set_ios,
 	.setup_clock    = dw_mci_rk3288_setup_clock,
diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index 4d2e3c2..38b2926 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -69,7 +69,8 @@ struct idmac_desc_64addr {
 
 	u32		des2;	/*Buffer sizes */
 #define IDMAC_64ADDR_SET_BUFFER1_SIZE(d, s) \
-	((d)->des2 = ((d)->des2 & 0x03ffe000) | ((s) & 0x1fff))
+	((d)->des2 = ((d)->des2 & cpu_to_le32(0x03ffe000)) | \
+	 ((cpu_to_le32(s)) & cpu_to_le32(0x1fff)))
 
 	u32		des3;	/* Reserved */
 
@@ -81,7 +82,7 @@ struct idmac_desc_64addr {
 };
 
 struct idmac_desc {
-	u32		des0;	/* Control Descriptor */
+	__le32		des0;	/* Control Descriptor */
 #define IDMAC_DES0_DIC	BIT(1)
 #define IDMAC_DES0_LD	BIT(2)
 #define IDMAC_DES0_FD	BIT(3)
@@ -90,18 +91,19 @@ struct idmac_desc {
 #define IDMAC_DES0_CES	BIT(30)
 #define IDMAC_DES0_OWN	BIT(31)
 
-	u32		des1;	/* Buffer sizes */
+	__le32		des1;	/* Buffer sizes */
 #define IDMAC_SET_BUFFER1_SIZE(d, s) \
 	((d)->des1 = ((d)->des1 & 0x03ffe000) | ((s) & 0x1fff))
 
-	u32		des2;	/* buffer 1 physical address */
+	__le32		des2;	/* buffer 1 physical address */
 
-	u32		des3;	/* buffer 2 physical address */
+	__le32		des3;	/* buffer 2 physical address */
 };
 #endif /* CONFIG_MMC_DW_IDMAC */
 
 static bool dw_mci_reset(struct dw_mci *host);
 static bool dw_mci_ctrl_reset(struct dw_mci *host, u32 reset);
+static int dw_mci_card_busy(struct mmc_host *mmc);
 
 #if defined(CONFIG_DEBUG_FS)
 static int dw_mci_req_show(struct seq_file *s, void *v)
@@ -335,6 +337,31 @@ static u32 dw_mci_prep_stop_abort(struct dw_mci *host, struct mmc_command *cmd)
 	return cmdr;
 }
 
+static void dw_mci_wait_while_busy(struct dw_mci *host, u32 cmd_flags)
+{
+	unsigned long timeout = jiffies + msecs_to_jiffies(500);
+
+	/*
+	 * Databook says that before issuing a new data transfer command
+	 * we need to check to see if the card is busy.  Data transfer commands
+	 * all have SDMMC_CMD_PRV_DAT_WAIT set, so we'll key off that.
+	 *
+	 * ...also allow sending for SDMMC_CMD_VOLT_SWITCH where busy is
+	 * expected.
+	 */
+	if ((cmd_flags & SDMMC_CMD_PRV_DAT_WAIT) &&
+	    !(cmd_flags & SDMMC_CMD_VOLT_SWITCH)) {
+		while (mci_readl(host, STATUS) & SDMMC_STATUS_BUSY) {
+			if (time_after(jiffies, timeout)) {
+				/* Command will fail; we'll pass error then */
+				dev_err(host->dev, "Busy; trying anyway\n");
+				break;
+			}
+			udelay(10);
+		}
+	}
+}
+
 static void dw_mci_start_command(struct dw_mci *host,
 				 struct mmc_command *cmd, u32 cmd_flags)
 {
@@ -345,6 +372,7 @@ static void dw_mci_start_command(struct dw_mci *host,
 
 	mci_writel(host, CMDARG, cmd->arg);
 	wmb();
+	dw_mci_wait_while_busy(host, cmd_flags);
 
 	mci_writel(host, CMD, cmd_flags | SDMMC_CMD_START);
 }
@@ -477,23 +505,23 @@ static void dw_mci_translate_sglist(struct dw_mci *host, struct mmc_data *data,
 			 * Set the OWN bit and disable interrupts for this
 			 * descriptor
 			 */
-			desc->des0 = IDMAC_DES0_OWN | IDMAC_DES0_DIC |
-						IDMAC_DES0_CH;
+			desc->des0 = cpu_to_le32(IDMAC_DES0_OWN |
+					IDMAC_DES0_DIC | IDMAC_DES0_CH);
 			/* Buffer length */
 			IDMAC_SET_BUFFER1_SIZE(desc, length);
 
 			/* Physical address to DMA to/from */
-			desc->des2 = mem_addr;
+			desc->des2 = cpu_to_le32(mem_addr);
 		}
 
 		/* Set first descriptor */
 		desc = host->sg_cpu;
-		desc->des0 |= IDMAC_DES0_FD;
+		desc->des0 |= cpu_to_le32(IDMAC_DES0_FD);
 
 		/* Set last descriptor */
 		desc = host->sg_cpu + (i - 1) * sizeof(struct idmac_desc);
-		desc->des0 &= ~(IDMAC_DES0_CH | IDMAC_DES0_DIC);
-		desc->des0 |= IDMAC_DES0_LD;
+		desc->des0 &= cpu_to_le32(~(IDMAC_DES0_CH | IDMAC_DES0_DIC));
+		desc->des0 |= cpu_to_le32(IDMAC_DES0_LD);
 	}
 
 	wmb();
@@ -562,12 +590,12 @@ static int dw_mci_idmac_init(struct dw_mci *host)
 
 		/* Forward link the descriptor list */
 		for (i = 0, p = host->sg_cpu; i < host->ring_size - 1; i++, p++)
-			p->des3 = host->sg_dma + (sizeof(struct idmac_desc) *
-								(i + 1));
+			p->des3 = cpu_to_le32(host->sg_dma +
+					(sizeof(struct idmac_desc) * (i + 1)));
 
 		/* Set the last descriptor as the end-of-ring descriptor */
-		p->des3 = host->sg_dma;
-		p->des0 = IDMAC_DES0_ER;
+		p->des3 = cpu_to_le32(host->sg_dma);
+		p->des0 = cpu_to_le32(IDMAC_DES0_ER);
 	}
 
 	dw_mci_idmac_reset(host);
@@ -737,6 +765,7 @@ static void dw_mci_ctrl_rd_thld(struct dw_mci *host, struct mmc_data *data)
 		return;
 
 	if (host->timing != MMC_TIMING_MMC_HS200 &&
+	    host->timing != MMC_TIMING_MMC_HS400 &&
 	    host->timing != MMC_TIMING_UHS_SDR104)
 		goto disable;
 
@@ -876,6 +905,7 @@ static void mci_send_cmd(struct dw_mci_slot *slot, u32 cmd, u32 arg)
 
 	mci_writel(host, CMDARG, arg);
 	wmb();
+	dw_mci_wait_while_busy(host, cmd);
 	mci_writel(host, CMD, SDMMC_CMD_START | cmd);
 
 	while (time_before(jiffies, timeout)) {
@@ -992,6 +1022,26 @@ static void __dw_mci_start_request(struct dw_mci *host,
 
 	dw_mci_start_command(host, cmd, cmdflags);
 
+	if (cmd->opcode == SD_SWITCH_VOLTAGE) {
+		unsigned long irqflags;
+
+		/*
+		 * Databook says to fail after 2ms w/ no response, but evidence
+		 * shows that sometimes the cmd11 interrupt takes over 130ms.
+		 * We'll set to 500ms, plus an extra jiffy just in case jiffies
+		 * is just about to roll over.
+		 *
+		 * We do this whole thing under spinlock and only if the
+		 * command hasn't already completed (indicating the the irq
+		 * already ran so we don't want the timeout).
+		 */
+		spin_lock_irqsave(&host->irq_lock, irqflags);
+		if (!test_bit(EVENT_CMD_COMPLETE, &host->pending_events))
+			mod_timer(&host->cmd11_timer,
+				jiffies + msecs_to_jiffies(500) + 1);
+		spin_unlock_irqrestore(&host->irq_lock, irqflags);
+	}
+
 	if (mrq->stop)
 		host->stop_cmdr = dw_mci_prepare_command(slot->mmc, mrq->stop);
 	else
@@ -1084,7 +1134,8 @@ static void dw_mci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
 	regs = mci_readl(slot->host, UHS_REG);
 
 	/* DDR mode set */
-	if (ios->timing == MMC_TIMING_MMC_DDR52)
+	if (ios->timing == MMC_TIMING_MMC_DDR52 ||
+	    ios->timing == MMC_TIMING_MMC_HS400)
 		regs |= ((0x1 << slot->id) << 16);
 	else
 		regs &= ~((0x1 << slot->id) << 16);
@@ -1101,12 +1152,6 @@ static void dw_mci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
 	if (drv_data && drv_data->set_ios)
 		drv_data->set_ios(slot->host, ios);
 
-	/* Slot specific timing and width adjustment */
-	dw_mci_setup_bus(slot, false);
-
-	if (slot->host->state == STATE_WAITING_CMD11_DONE && ios->clock != 0)
-		slot->host->state = STATE_IDLE;
-
 	switch (ios->power_mode) {
 	case MMC_POWER_UP:
 		if (!IS_ERR(mmc->supply.vmmc)) {
@@ -1125,23 +1170,39 @@ static void dw_mci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
 		mci_writel(slot->host, PWREN, regs);
 		break;
 	case MMC_POWER_ON:
-		if (!IS_ERR(mmc->supply.vqmmc) && !slot->host->vqmmc_enabled) {
-			ret = regulator_enable(mmc->supply.vqmmc);
-			if (ret < 0)
-				dev_err(slot->host->dev,
-					"failed to enable vqmmc regulator\n");
-			else
+		if (!slot->host->vqmmc_enabled) {
+			if (!IS_ERR(mmc->supply.vqmmc)) {
+				ret = regulator_enable(mmc->supply.vqmmc);
+				if (ret < 0)
+					dev_err(slot->host->dev,
+						"failed to enable vqmmc\n");
+				else
+					slot->host->vqmmc_enabled = true;
+
+			} else {
+				/* Keep track so we don't reset again */
 				slot->host->vqmmc_enabled = true;
+			}
+
+			/* Reset our state machine after powering on */
+			dw_mci_ctrl_reset(slot->host,
+					  SDMMC_CTRL_ALL_RESET_FLAGS);
 		}
+
+		/* Adjust clock / bus width after power is up */
+		dw_mci_setup_bus(slot, false);
+
 		break;
 	case MMC_POWER_OFF:
+		/* Turn clock off before power goes down */
+		dw_mci_setup_bus(slot, false);
+
 		if (!IS_ERR(mmc->supply.vmmc))
 			mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, 0);
 
-		if (!IS_ERR(mmc->supply.vqmmc) && slot->host->vqmmc_enabled) {
+		if (!IS_ERR(mmc->supply.vqmmc) && slot->host->vqmmc_enabled)
 			regulator_disable(mmc->supply.vqmmc);
-			slot->host->vqmmc_enabled = false;
-		}
+		slot->host->vqmmc_enabled = false;
 
 		regs = mci_readl(slot->host, PWREN);
 		regs &= ~(1 << slot->id);
@@ -1150,6 +1211,9 @@ static void dw_mci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
 	default:
 		break;
 	}
+
+	if (slot->host->state == STATE_WAITING_CMD11_DONE && ios->clock != 0)
+		slot->host->state = STATE_IDLE;
 }
 
 static int dw_mci_card_busy(struct mmc_host *mmc)
@@ -1323,6 +1387,18 @@ static int dw_mci_execute_tuning(struct mmc_host *mmc, u32 opcode)
 	return err;
 }
 
+static int dw_mci_prepare_hs400_tuning(struct mmc_host *mmc, struct mmc_ios *ios)
+{
+	struct dw_mci_slot *slot = mmc_priv(mmc);
+	struct dw_mci *host = slot->host;
+	const struct dw_mci_drv_data *drv_data = host->drv_data;
+
+	if (drv_data && drv_data->prepare_hs400_tuning)
+		return drv_data->prepare_hs400_tuning(host, ios);
+
+	return 0;
+}
+
 static const struct mmc_host_ops dw_mci_ops = {
 	.request		= dw_mci_request,
 	.pre_req		= dw_mci_pre_req,
@@ -1335,6 +1411,7 @@ static const struct mmc_host_ops dw_mci_ops = {
 	.card_busy		= dw_mci_card_busy,
 	.start_signal_voltage_switch = dw_mci_switch_voltage,
 	.init_card		= dw_mci_init_card,
+	.prepare_hs400_tuning	= dw_mci_prepare_hs400_tuning,
 };
 
 static void dw_mci_request_end(struct dw_mci *host, struct mmc_request *mrq)
@@ -1520,7 +1597,10 @@ static void dw_mci_tasklet_func(unsigned long priv)
 			if (test_and_clear_bit(EVENT_DATA_ERROR,
 					       &host->pending_events)) {
 				dw_mci_stop_dma(host);
-				send_stop_abort(host, data);
+				if (data->stop ||
+				    !(host->data_status & (SDMMC_INT_DRTO |
+							   SDMMC_INT_EBE)))
+					send_stop_abort(host, data);
 				state = STATE_DATA_ERROR;
 				break;
 			}
@@ -1547,7 +1627,10 @@ static void dw_mci_tasklet_func(unsigned long priv)
 			if (test_and_clear_bit(EVENT_DATA_ERROR,
 					       &host->pending_events)) {
 				dw_mci_stop_dma(host);
-				send_stop_abort(host, data);
+				if (data->stop ||
+				    !(host->data_status & (SDMMC_INT_DRTO |
+							   SDMMC_INT_EBE)))
+					send_stop_abort(host, data);
 				state = STATE_DATA_ERROR;
 				break;
 			}
@@ -1685,8 +1768,7 @@ static void dw_mci_push_data16(struct dw_mci *host, void *buf, int cnt)
 		buf += len;
 		cnt -= len;
 		if (host->part_buf_count == 2) {
-			mci_writew(host, DATA(host->data_offset),
-					host->part_buf16);
+			mci_fifo_writew(host->fifo_reg, host->part_buf16);
 			host->part_buf_count = 0;
 		}
 	}
@@ -1703,15 +1785,14 @@ static void dw_mci_push_data16(struct dw_mci *host, void *buf, int cnt)
 			cnt -= len;
 			/* push data from aligned buffer into fifo */
 			for (i = 0; i < items; ++i)
-				mci_writew(host, DATA(host->data_offset),
-						aligned_buf[i]);
+				mci_fifo_writew(host->fifo_reg, aligned_buf[i]);
 		}
 	} else
 #endif
 	{
 		u16 *pdata = buf;
 		for (; cnt >= 2; cnt -= 2)
-			mci_writew(host, DATA(host->data_offset), *pdata++);
+			mci_fifo_writew(host->fifo_reg, *pdata++);
 		buf = pdata;
 	}
 	/* put anything remaining in the part_buf */
@@ -1720,8 +1801,7 @@ static void dw_mci_push_data16(struct dw_mci *host, void *buf, int cnt)
 		 /* Push data if we have reached the expected data length */
 		if ((data->bytes_xfered + init_cnt) ==
 		    (data->blksz * data->blocks))
-			mci_writew(host, DATA(host->data_offset),
-				   host->part_buf16);
+			mci_fifo_writew(host->fifo_reg, host->part_buf16);
 	}
 }
 
@@ -1736,8 +1816,7 @@ static void dw_mci_pull_data16(struct dw_mci *host, void *buf, int cnt)
 			int items = len >> 1;
 			int i;
 			for (i = 0; i < items; ++i)
-				aligned_buf[i] = mci_readw(host,
-						DATA(host->data_offset));
+				aligned_buf[i] = mci_fifo_readw(host->fifo_reg);
 			/* memcpy from aligned buffer into output buffer */
 			memcpy(buf, aligned_buf, len);
 			buf += len;
@@ -1748,11 +1827,11 @@ static void dw_mci_pull_data16(struct dw_mci *host, void *buf, int cnt)
 	{
 		u16 *pdata = buf;
 		for (; cnt >= 2; cnt -= 2)
-			*pdata++ = mci_readw(host, DATA(host->data_offset));
+			*pdata++ = mci_fifo_readw(host->fifo_reg);
 		buf = pdata;
 	}
 	if (cnt) {
-		host->part_buf16 = mci_readw(host, DATA(host->data_offset));
+		host->part_buf16 = mci_fifo_readw(host->fifo_reg);
 		dw_mci_pull_final_bytes(host, buf, cnt);
 	}
 }
@@ -1768,8 +1847,7 @@ static void dw_mci_push_data32(struct dw_mci *host, void *buf, int cnt)
 		buf += len;
 		cnt -= len;
 		if (host->part_buf_count == 4) {
-			mci_writel(host, DATA(host->data_offset),
-					host->part_buf32);
+			mci_fifo_writel(host->fifo_reg,	host->part_buf32);
 			host->part_buf_count = 0;
 		}
 	}
@@ -1786,15 +1864,14 @@ static void dw_mci_push_data32(struct dw_mci *host, void *buf, int cnt)
 			cnt -= len;
 			/* push data from aligned buffer into fifo */
 			for (i = 0; i < items; ++i)
-				mci_writel(host, DATA(host->data_offset),
-						aligned_buf[i]);
+				mci_fifo_writel(host->fifo_reg,	aligned_buf[i]);
 		}
 	} else
 #endif
 	{
 		u32 *pdata = buf;
 		for (; cnt >= 4; cnt -= 4)
-			mci_writel(host, DATA(host->data_offset), *pdata++);
+			mci_fifo_writel(host->fifo_reg, *pdata++);
 		buf = pdata;
 	}
 	/* put anything remaining in the part_buf */
@@ -1803,8 +1880,7 @@ static void dw_mci_push_data32(struct dw_mci *host, void *buf, int cnt)
 		 /* Push data if we have reached the expected data length */
 		if ((data->bytes_xfered + init_cnt) ==
 		    (data->blksz * data->blocks))
-			mci_writel(host, DATA(host->data_offset),
-				   host->part_buf32);
+			mci_fifo_writel(host->fifo_reg, host->part_buf32);
 	}
 }
 
@@ -1819,8 +1895,7 @@ static void dw_mci_pull_data32(struct dw_mci *host, void *buf, int cnt)
 			int items = len >> 2;
 			int i;
 			for (i = 0; i < items; ++i)
-				aligned_buf[i] = mci_readl(host,
-						DATA(host->data_offset));
+				aligned_buf[i] = mci_fifo_readl(host->fifo_reg);
 			/* memcpy from aligned buffer into output buffer */
 			memcpy(buf, aligned_buf, len);
 			buf += len;
@@ -1831,11 +1906,11 @@ static void dw_mci_pull_data32(struct dw_mci *host, void *buf, int cnt)
 	{
 		u32 *pdata = buf;
 		for (; cnt >= 4; cnt -= 4)
-			*pdata++ = mci_readl(host, DATA(host->data_offset));
+			*pdata++ = mci_fifo_readl(host->fifo_reg);
 		buf = pdata;
 	}
 	if (cnt) {
-		host->part_buf32 = mci_readl(host, DATA(host->data_offset));
+		host->part_buf32 = mci_fifo_readl(host->fifo_reg);
 		dw_mci_pull_final_bytes(host, buf, cnt);
 	}
 }
@@ -1852,8 +1927,7 @@ static void dw_mci_push_data64(struct dw_mci *host, void *buf, int cnt)
 		cnt -= len;
 
 		if (host->part_buf_count == 8) {
-			mci_writeq(host, DATA(host->data_offset),
-					host->part_buf);
+			mci_fifo_writeq(host->fifo_reg,	host->part_buf);
 			host->part_buf_count = 0;
 		}
 	}
@@ -1870,15 +1944,14 @@ static void dw_mci_push_data64(struct dw_mci *host, void *buf, int cnt)
 			cnt -= len;
 			/* push data from aligned buffer into fifo */
 			for (i = 0; i < items; ++i)
-				mci_writeq(host, DATA(host->data_offset),
-						aligned_buf[i]);
+				mci_fifo_writeq(host->fifo_reg,	aligned_buf[i]);
 		}
 	} else
 #endif
 	{
 		u64 *pdata = buf;
 		for (; cnt >= 8; cnt -= 8)
-			mci_writeq(host, DATA(host->data_offset), *pdata++);
+			mci_fifo_writeq(host->fifo_reg, *pdata++);
 		buf = pdata;
 	}
 	/* put anything remaining in the part_buf */
@@ -1887,8 +1960,7 @@ static void dw_mci_push_data64(struct dw_mci *host, void *buf, int cnt)
 		/* Push data if we have reached the expected data length */
 		if ((data->bytes_xfered + init_cnt) ==
 		    (data->blksz * data->blocks))
-			mci_writeq(host, DATA(host->data_offset),
-				   host->part_buf);
+			mci_fifo_writeq(host->fifo_reg, host->part_buf);
 	}
 }
 
@@ -1903,8 +1975,8 @@ static void dw_mci_pull_data64(struct dw_mci *host, void *buf, int cnt)
 			int items = len >> 3;
 			int i;
 			for (i = 0; i < items; ++i)
-				aligned_buf[i] = mci_readq(host,
-						DATA(host->data_offset));
+				aligned_buf[i] = mci_fifo_readq(host->fifo_reg);
+
 			/* memcpy from aligned buffer into output buffer */
 			memcpy(buf, aligned_buf, len);
 			buf += len;
@@ -1915,11 +1987,11 @@ static void dw_mci_pull_data64(struct dw_mci *host, void *buf, int cnt)
 	{
 		u64 *pdata = buf;
 		for (; cnt >= 8; cnt -= 8)
-			*pdata++ = mci_readq(host, DATA(host->data_offset));
+			*pdata++ = mci_fifo_readq(host->fifo_reg);
 		buf = pdata;
 	}
 	if (cnt) {
-		host->part_buf = mci_readq(host, DATA(host->data_offset));
+		host->part_buf = mci_fifo_readq(host->fifo_reg);
 		dw_mci_pull_final_bytes(host, buf, cnt);
 	}
 }
@@ -2097,9 +2169,20 @@ static irqreturn_t dw_mci_interrupt(int irq, void *dev_id)
 		/* Check volt switch first, since it can look like an error */
 		if ((host->state == STATE_SENDING_CMD11) &&
 		    (pending & SDMMC_INT_VOLT_SWITCH)) {
+			unsigned long irqflags;
+
 			mci_writel(host, RINTSTS, SDMMC_INT_VOLT_SWITCH);
 			pending &= ~SDMMC_INT_VOLT_SWITCH;
+
+			/*
+			 * Hold the lock; we know cmd11_timer can't be kicked
+			 * off after the lock is released, so safe to delete.
+			 */
+			spin_lock_irqsave(&host->irq_lock, irqflags);
 			dw_mci_cmd_interrupt(host, pending);
+			spin_unlock_irqrestore(&host->irq_lock, irqflags);
+
+			del_timer(&host->cmd11_timer);
 		}
 
 		if (pending & DW_MCI_CMD_ERROR_FLAGS) {
@@ -2156,6 +2239,10 @@ static irqreturn_t dw_mci_interrupt(int irq, void *dev_id)
 		/* Handle SDIO Interrupts */
 		for (i = 0; i < host->num_slots; i++) {
 			struct dw_mci_slot *slot = host->slot[i];
+
+			if (!slot)
+				continue;
+
 			if (pending & SDMMC_INT_SDIO(slot->sdio_id)) {
 				mci_writel(host, RINTSTS,
 					   SDMMC_INT_SDIO(slot->sdio_id));
@@ -2506,6 +2593,20 @@ ciu_out:
 	return ret;
 }
 
+static void dw_mci_cmd11_timer(unsigned long arg)
+{
+	struct dw_mci *host = (struct dw_mci *)arg;
+
+	if (host->state != STATE_SENDING_CMD11) {
+		dev_warn(host->dev, "Unexpected CMD11 timeout\n");
+		return;
+	}
+
+	host->cmd_status = SDMMC_INT_RTO;
+	set_bit(EVENT_CMD_COMPLETE, &host->pending_events);
+	tasklet_schedule(&host->tasklet);
+}
+
 #ifdef CONFIG_OF
 static struct dw_mci_of_quirks {
 	char *quirk;
@@ -2574,6 +2675,34 @@ static struct dw_mci_board *dw_mci_parse_dt(struct dw_mci *host)
 }
 #endif /* CONFIG_OF */
 
+static void dw_mci_enable_cd(struct dw_mci *host)
+{
+	struct dw_mci_board *brd = host->pdata;
+	unsigned long irqflags;
+	u32 temp;
+	int i;
+
+	/* No need for CD if broken card detection */
+	if (brd->quirks & DW_MCI_QUIRK_BROKEN_CARD_DETECTION)
+		return;
+
+	/* No need for CD if all slots have a non-error GPIO */
+	for (i = 0; i < host->num_slots; i++) {
+		struct dw_mci_slot *slot = host->slot[i];
+
+		if (IS_ERR_VALUE(mmc_gpio_get_cd(slot->mmc)))
+			break;
+	}
+	if (i == host->num_slots)
+		return;
+
+	spin_lock_irqsave(&host->irq_lock, irqflags);
+	temp = mci_readl(host, INTMASK);
+	temp  |= SDMMC_INT_CD;
+	mci_writel(host, INTMASK, temp);
+	spin_unlock_irqrestore(&host->irq_lock, irqflags);
+}
+
 int dw_mci_probe(struct dw_mci *host)
 {
 	const struct dw_mci_drv_data *drv_data = host->drv_data;
@@ -2652,6 +2781,9 @@ int dw_mci_probe(struct dw_mci *host)
 		}
 	}
 
+	setup_timer(&host->cmd11_timer,
+		    dw_mci_cmd11_timer, (unsigned long)host);
+
 	host->quirks = host->pdata->quirks;
 
 	spin_lock_init(&host->lock);
@@ -2731,9 +2863,9 @@ int dw_mci_probe(struct dw_mci *host)
 	dev_info(host->dev, "Version ID is %04x\n", host->verid);
 
 	if (host->verid < DW_MMC_240A)
-		host->data_offset = DATA_OFFSET;
+		host->fifo_reg = host->regs + DATA_OFFSET;
 	else
-		host->data_offset = DATA_240A_OFFSET;
+		host->fifo_reg = host->regs + DATA_240A_OFFSET;
 
 	tasklet_init(&host->tasklet, dw_mci_tasklet_func, (unsigned long)host);
 	ret = devm_request_irq(host->dev, host->irq, dw_mci_interrupt,
@@ -2747,13 +2879,13 @@ int dw_mci_probe(struct dw_mci *host)
 		host->num_slots = ((mci_readl(host, HCON) >> 1) & 0x1F) + 1;
 
 	/*
-	 * Enable interrupts for command done, data over, data empty, card det,
+	 * Enable interrupts for command done, data over, data empty,
 	 * receive ready and error such as transmit, receive timeout, crc error
 	 */
 	mci_writel(host, RINTSTS, 0xFFFFFFFF);
 	mci_writel(host, INTMASK, SDMMC_INT_CMD_DONE | SDMMC_INT_DATA_OVER |
 		   SDMMC_INT_TXDR | SDMMC_INT_RXDR |
-		   DW_MCI_ERROR_FLAGS | SDMMC_INT_CD);
+		   DW_MCI_ERROR_FLAGS);
 	mci_writel(host, CTRL, SDMMC_CTRL_INT_ENABLE); /* Enable mci interrupt */
 
 	dev_info(host->dev, "DW MMC controller at irq %d, "
@@ -2778,6 +2910,9 @@ int dw_mci_probe(struct dw_mci *host)
 		goto err_dmaunmap;
 	}
 
+	/* Now that slots are all setup, we can enable card detect */
+	dw_mci_enable_cd(host);
+
 	if (host->quirks & DW_MCI_QUIRK_IDMAC_DTO)
 		dev_info(host->dev, "Internal DMAC interrupt fix enabled.\n");
 
@@ -2864,7 +2999,7 @@ int dw_mci_resume(struct dw_mci *host)
 	mci_writel(host, RINTSTS, 0xFFFFFFFF);
 	mci_writel(host, INTMASK, SDMMC_INT_CMD_DONE | SDMMC_INT_DATA_OVER |
 		   SDMMC_INT_TXDR | SDMMC_INT_RXDR |
-		   DW_MCI_ERROR_FLAGS | SDMMC_INT_CD);
+		   DW_MCI_ERROR_FLAGS);
 	mci_writel(host, CTRL, SDMMC_CTRL_INT_ENABLE);
 
 	for (i = 0; i < host->num_slots; i++) {
@@ -2876,6 +3011,10 @@ int dw_mci_resume(struct dw_mci *host)
 			dw_mci_setup_bus(slot, true);
 		}
 	}
+
+	/* Now that slots are all setup, we can enable card detect */
+	dw_mci_enable_cd(host);
+
 	return 0;
 }
 EXPORT_SYMBOL(dw_mci_resume);
diff --git a/drivers/mmc/host/dw_mmc.h b/drivers/mmc/host/dw_mmc.h
index 18c4afe..f45ab91 100644
--- a/drivers/mmc/host/dw_mmc.h
+++ b/drivers/mmc/host/dw_mmc.h
@@ -169,24 +169,34 @@
 #define SDMMC_CTRL_ALL_RESET_FLAGS \
 	(SDMMC_CTRL_RESET | SDMMC_CTRL_FIFO_RESET | SDMMC_CTRL_DMA_RESET)
 
+/* FIFO register access macros. These should not change the data endian-ness
+ * as they are written to memory to be dealt with by the upper layers */
+#define mci_fifo_readw(__reg)	__raw_readw(__reg)
+#define mci_fifo_readl(__reg)	__raw_readl(__reg)
+#define mci_fifo_readq(__reg)	__raw_readq(__reg)
+
+#define mci_fifo_writew(__value, __reg)	__raw_writew(__reg, __value)
+#define mci_fifo_writel(__value, __reg)	__raw_writel(__reg, __value)
+#define mci_fifo_writeq(__value, __reg)	__raw_writeq(__reg, __value)
+
 /* Register access macros */
 #define mci_readl(dev, reg)			\
-	__raw_readl((dev)->regs + SDMMC_##reg)
+	readl_relaxed((dev)->regs + SDMMC_##reg)
 #define mci_writel(dev, reg, value)			\
-	__raw_writel((value), (dev)->regs + SDMMC_##reg)
+	writel_relaxed((value), (dev)->regs + SDMMC_##reg)
 
 /* 16-bit FIFO access macros */
 #define mci_readw(dev, reg)			\
-	__raw_readw((dev)->regs + SDMMC_##reg)
+	readw_relaxed((dev)->regs + SDMMC_##reg)
 #define mci_writew(dev, reg, value)			\
-	__raw_writew((value), (dev)->regs + SDMMC_##reg)
+	writew_relaxed((value), (dev)->regs + SDMMC_##reg)
 
 /* 64-bit FIFO access macros */
 #ifdef readq
 #define mci_readq(dev, reg)			\
-	__raw_readq((dev)->regs + SDMMC_##reg)
+	readq_relaxed((dev)->regs + SDMMC_##reg)
 #define mci_writeq(dev, reg, value)			\
-	__raw_writeq((value), (dev)->regs + SDMMC_##reg)
+	writeq_relaxed((value), (dev)->regs + SDMMC_##reg)
 #else
 /*
  * Dummy readq implementation for architectures that don't define it.
@@ -200,6 +210,10 @@
 	(*(volatile u64 __force *)((dev)->regs + SDMMC_##reg))
 #define mci_writeq(dev, reg, value)			\
 	(*(volatile u64 __force *)((dev)->regs + SDMMC_##reg) = (value))
+
+#define __raw_writeq(__value, __reg) \
+	(*(volatile u64 __force *)(__reg) = (__value))
+#define __raw_readq(__reg) (*(volatile u64 __force *)(__reg))
 #endif
 
 extern int dw_mci_probe(struct dw_mci *host);
@@ -271,5 +285,7 @@ struct dw_mci_drv_data {
 	void		(*set_ios)(struct dw_mci *host, struct mmc_ios *ios);
 	int		(*parse_dt)(struct dw_mci *host);
 	int		(*execute_tuning)(struct dw_mci_slot *slot);
+	int		(*prepare_hs400_tuning)(struct dw_mci *host,
+						struct mmc_ios *ios);
 };
 #endif /* _DW_MMC_H_ */
diff --git a/drivers/mmc/host/mmc_spi.c b/drivers/mmc/host/mmc_spi.c
index e4a0754..ae19d83 100644
--- a/drivers/mmc/host/mmc_spi.c
+++ b/drivers/mmc/host/mmc_spi.c
@@ -1507,7 +1507,7 @@ static int mmc_spi_remove(struct spi_device *spi)
 	return 0;
 }
 
-static struct of_device_id mmc_spi_of_match_table[] = {
+static const struct of_device_id mmc_spi_of_match_table[] = {
 	{ .compatible = "mmc-spi-slot", },
 	{},
 };
diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
index 7fe1619..fb26674 100644
--- a/drivers/mmc/host/mmci.c
+++ b/drivers/mmc/host/mmci.c
@@ -1613,7 +1613,10 @@ static int mmci_probe(struct amba_device *dev,
 	dev_dbg(mmc_dev(mmc), "clocking block at %u Hz\n", mmc->f_max);
 
 	/* Get regulators and the supported OCR mask */
-	mmc_regulator_get_supply(mmc);
+	ret = mmc_regulator_get_supply(mmc);
+	if (ret == -EPROBE_DEFER)
+		goto clk_disable;
+
 	if (!mmc->ocr_avail)
 		mmc->ocr_avail = plat->ocr_mask;
 	else if (plat->ocr_mask)
diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index f84cfb0..9df2b68 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -222,10 +222,6 @@ struct omap_hsmmc_host {
 	struct omap_hsmmc_next	next_data;
 	struct	omap_hsmmc_platform_data	*pdata;
 
-	/* To handle board related suspend/resume functionality for MMC */
-	int (*suspend)(struct device *dev);
-	int (*resume)(struct device *dev);
-
 	/* return MMC cover switch state, can be NULL if not supported.
 	 *
 	 * possible return values:
@@ -234,12 +230,7 @@ struct omap_hsmmc_host {
 	 */
 	int (*get_cover_state)(struct device *dev);
 
-	/* Card detection IRQs */
-	int card_detect_irq;
-
 	int (*card_detect)(struct device *dev);
-	int (*get_ro)(struct device *dev);
-
 };
 
 struct omap_mmc_of_data {
@@ -256,13 +247,6 @@ static int omap_hsmmc_card_detect(struct device *dev)
 	return mmc_gpio_get_cd(host->mmc);
 }
 
-static int omap_hsmmc_get_wp(struct device *dev)
-{
-	struct omap_hsmmc_host *host = dev_get_drvdata(dev);
-
-	return mmc_gpio_get_ro(host->mmc);
-}
-
 static int omap_hsmmc_get_cover_state(struct device *dev)
 {
 	struct omap_hsmmc_host *host = dev_get_drvdata(dev);
@@ -434,7 +418,7 @@ static inline int omap_hsmmc_have_reg(void)
 
 #endif
 
-static irqreturn_t omap_hsmmc_detect(int irq, void *dev_id);
+static irqreturn_t omap_hsmmc_cover_irq(int irq, void *dev_id);
 
 static int omap_hsmmc_gpio_init(struct mmc_host *mmc,
 				struct omap_hsmmc_host *host,
@@ -442,29 +426,25 @@ static int omap_hsmmc_gpio_init(struct mmc_host *mmc,
 {
 	int ret;
 
-	if (gpio_is_valid(pdata->switch_pin)) {
-		if (pdata->cover)
-			host->get_cover_state =
-				omap_hsmmc_get_cover_state;
-		else
-			host->card_detect = omap_hsmmc_card_detect;
-		host->card_detect_irq =
-				gpio_to_irq(pdata->switch_pin);
-		mmc_gpio_set_cd_isr(mmc, omap_hsmmc_detect);
-		ret = mmc_gpio_request_cd(mmc, pdata->switch_pin, 0);
+	if (gpio_is_valid(pdata->gpio_cod)) {
+		ret = mmc_gpio_request_cd(mmc, pdata->gpio_cod, 0);
 		if (ret)
 			return ret;
-	} else {
-		pdata->switch_pin = -EINVAL;
+
+		host->get_cover_state = omap_hsmmc_get_cover_state;
+		mmc_gpio_set_cd_isr(mmc, omap_hsmmc_cover_irq);
+	} else if (gpio_is_valid(pdata->gpio_cd)) {
+		ret = mmc_gpio_request_cd(mmc, pdata->gpio_cd, 0);
+		if (ret)
+			return ret;
+
+		host->card_detect = omap_hsmmc_card_detect;
 	}
 
 	if (gpio_is_valid(pdata->gpio_wp)) {
-		host->get_ro = omap_hsmmc_get_wp;
 		ret = mmc_gpio_request_ro(mmc, pdata->gpio_wp);
 		if (ret)
 			return ret;
-	} else {
-		pdata->gpio_wp = -EINVAL;
 	}
 
 	return 0;
@@ -882,6 +862,8 @@ static void omap_hsmmc_request_done(struct omap_hsmmc_host *host, struct mmc_req
 		return;
 	host->mrq = NULL;
 	mmc_request_done(host->mmc, mrq);
+	pm_runtime_mark_last_busy(host->dev);
+	pm_runtime_put_autosuspend(host->dev);
 }
 
 /*
@@ -1252,26 +1234,16 @@ static void omap_hsmmc_protect_card(struct omap_hsmmc_host *host)
 }
 
 /*
- * irq handler to notify the core about card insertion/removal
+ * irq handler when (cell-phone) cover is mounted/removed
  */
-static irqreturn_t omap_hsmmc_detect(int irq, void *dev_id)
+static irqreturn_t omap_hsmmc_cover_irq(int irq, void *dev_id)
 {
 	struct omap_hsmmc_host *host = dev_id;
-	int carddetect;
 
 	sysfs_notify(&host->mmc->class_dev.kobj, NULL, "cover_switch");
 
-	if (host->card_detect)
-		carddetect = host->card_detect(host->dev);
-	else {
-		omap_hsmmc_protect_card(host);
-		carddetect = -ENOSYS;
-	}
-
-	if (carddetect)
-		mmc_detect_change(host->mmc, (HZ * 200) / 1000);
-	else
-		mmc_detect_change(host->mmc, (HZ * 50) / 1000);
+	omap_hsmmc_protect_card(host);
+	mmc_detect_change(host->mmc, (HZ * 200) / 1000);
 	return IRQ_HANDLED;
 }
 
@@ -1305,6 +1277,8 @@ static void omap_hsmmc_dma_callback(void *param)
 
 		host->mrq = NULL;
 		mmc_request_done(host->mmc, mrq);
+		pm_runtime_mark_last_busy(host->dev);
+		pm_runtime_put_autosuspend(host->dev);
 	}
 }
 
@@ -1537,6 +1511,7 @@ static void omap_hsmmc_request(struct mmc_host *mmc, struct mmc_request *req)
 
 	BUG_ON(host->req_in_progress);
 	BUG_ON(host->dma_ch != -1);
+	pm_runtime_get_sync(host->dev);
 	if (host->protect_card) {
 		if (host->reqs_blocked < 3) {
 			/*
@@ -1553,6 +1528,8 @@ static void omap_hsmmc_request(struct mmc_host *mmc, struct mmc_request *req)
 			req->data->error = -EBADF;
 		req->cmd->retries = 0;
 		mmc_request_done(mmc, req);
+		pm_runtime_mark_last_busy(host->dev);
+		pm_runtime_put_autosuspend(host->dev);
 		return;
 	} else if (host->reqs_blocked)
 		host->reqs_blocked = 0;
@@ -1566,6 +1543,8 @@ static void omap_hsmmc_request(struct mmc_host *mmc, struct mmc_request *req)
 			req->data->error = err;
 		host->mrq = NULL;
 		mmc_request_done(mmc, req);
+		pm_runtime_mark_last_busy(host->dev);
+		pm_runtime_put_autosuspend(host->dev);
 		return;
 	}
 	if (req->sbc && !(host->flags & AUTO_CMD23)) {
@@ -1641,15 +1620,6 @@ static int omap_hsmmc_get_cd(struct mmc_host *mmc)
 	return host->card_detect(host->dev);
 }
 
-static int omap_hsmmc_get_ro(struct mmc_host *mmc)
-{
-	struct omap_hsmmc_host *host = mmc_priv(mmc);
-
-	if (!host->get_ro)
-		return -ENOSYS;
-	return host->get_ro(host->dev);
-}
-
 static void omap_hsmmc_init_card(struct mmc_host *mmc, struct mmc_card *card)
 {
 	struct omap_hsmmc_host *host = mmc_priv(mmc);
@@ -1778,25 +1748,6 @@ static void omap_hsmmc_conf_bus_power(struct omap_hsmmc_host *host)
 	set_sd_bus_power(host);
 }
 
-static int omap_hsmmc_enable_fclk(struct mmc_host *mmc)
-{
-	struct omap_hsmmc_host *host = mmc_priv(mmc);
-
-	pm_runtime_get_sync(host->dev);
-
-	return 0;
-}
-
-static int omap_hsmmc_disable_fclk(struct mmc_host *mmc)
-{
-	struct omap_hsmmc_host *host = mmc_priv(mmc);
-
-	pm_runtime_mark_last_busy(host->dev);
-	pm_runtime_put_autosuspend(host->dev);
-
-	return 0;
-}
-
 static int omap_hsmmc_multi_io_quirk(struct mmc_card *card,
 				     unsigned int direction, int blk_size)
 {
@@ -1808,14 +1759,12 @@ static int omap_hsmmc_multi_io_quirk(struct mmc_card *card,
 }
 
 static struct mmc_host_ops omap_hsmmc_ops = {
-	.enable = omap_hsmmc_enable_fclk,
-	.disable = omap_hsmmc_disable_fclk,
 	.post_req = omap_hsmmc_post_req,
 	.pre_req = omap_hsmmc_pre_req,
 	.request = omap_hsmmc_request,
 	.set_ios = omap_hsmmc_set_ios,
 	.get_cd = omap_hsmmc_get_cd,
-	.get_ro = omap_hsmmc_get_ro,
+	.get_ro = mmc_gpio_get_ro,
 	.init_card = omap_hsmmc_init_card,
 	.enable_sdio_irq = omap_hsmmc_enable_sdio_irq,
 };
@@ -1937,7 +1886,8 @@ static struct omap_hsmmc_platform_data *of_get_hsmmc_pdata(struct device *dev)
 	if (of_find_property(np, "ti,dual-volt", NULL))
 		pdata->controller_flags |= OMAP_HSMMC_SUPPORTS_DUAL_VOLT;
 
-	pdata->switch_pin = -EINVAL;
+	pdata->gpio_cd = -EINVAL;
+	pdata->gpio_cod = -EINVAL;
 	pdata->gpio_wp = -EINVAL;
 
 	if (of_find_property(np, "ti,non-removable", NULL)) {
@@ -2179,9 +2129,9 @@ static int omap_hsmmc_probe(struct platform_device *pdev)
 		if (ret < 0)
 			goto err_slot_name;
 	}
-	if (host->card_detect_irq && host->get_cover_state) {
+	if (host->get_cover_state) {
 		ret = device_create_file(&mmc->class_dev,
-					&dev_attr_cover_switch);
+					 &dev_attr_cover_switch);
 		if (ret < 0)
 			goto err_slot_name;
 	}
@@ -2236,7 +2186,7 @@ static int omap_hsmmc_remove(struct platform_device *pdev)
 	return 0;
 }
 
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
 static int omap_hsmmc_suspend(struct device *dev)
 {
 	struct omap_hsmmc_host *host = dev_get_drvdata(dev);
@@ -2292,10 +2242,6 @@ static int omap_hsmmc_resume(struct device *dev)
 	pm_runtime_put_autosuspend(host->dev);
 	return 0;
 }
-
-#else
-#define omap_hsmmc_suspend	NULL
-#define omap_hsmmc_resume	NULL
 #endif
 
 static int omap_hsmmc_runtime_suspend(struct device *dev)
@@ -2376,8 +2322,7 @@ static int omap_hsmmc_runtime_resume(struct device *dev)
 }
 
 static struct dev_pm_ops omap_hsmmc_dev_pm_ops = {
-	.suspend	= omap_hsmmc_suspend,
-	.resume		= omap_hsmmc_resume,
+	SET_SYSTEM_SLEEP_PM_OPS(omap_hsmmc_suspend, omap_hsmmc_resume)
 	.runtime_suspend = omap_hsmmc_runtime_suspend,
 	.runtime_resume = omap_hsmmc_runtime_resume,
 };
diff --git a/drivers/mmc/host/sdhci-acpi.c b/drivers/mmc/host/sdhci-acpi.c
index a45ed39..22d929f 100644
--- a/drivers/mmc/host/sdhci-acpi.c
+++ b/drivers/mmc/host/sdhci-acpi.c
@@ -40,7 +40,6 @@
 #include <linux/mmc/host.h>
 #include <linux/mmc/pm.h>
 #include <linux/mmc/slot-gpio.h>
-#include <linux/mmc/sdhci.h>
 
 #include "sdhci.h"
 
diff --git a/drivers/mmc/host/sdhci-bcm-kona.c b/drivers/mmc/host/sdhci-bcm-kona.c
index 34bb8f9..2bd90fb 100644
--- a/drivers/mmc/host/sdhci-bcm-kona.c
+++ b/drivers/mmc/host/sdhci-bcm-kona.c
@@ -54,7 +54,6 @@
 
 struct sdhci_bcm_kona_dev {
 	struct mutex	write_lock; /* protect back to back writes */
-	struct clk	*external_clk;
 };
 
 
@@ -175,24 +174,6 @@ static void sdhci_bcm_kona_card_event(struct sdhci_host *host)
 	}
 }
 
-/*
- * Get the base clock. Use central clock source for now. Not sure if different
- * clock speed to each dev is allowed
- */
-static unsigned int sdhci_bcm_kona_get_max_clk(struct sdhci_host *host)
-{
-	struct sdhci_bcm_kona_dev *kona_dev;
-	struct sdhci_pltfm_host *pltfm_priv = sdhci_priv(host);
-	kona_dev = sdhci_pltfm_priv(pltfm_priv);
-
-	return host->mmc->f_max;
-}
-
-static unsigned int sdhci_bcm_kona_get_timeout_clock(struct sdhci_host *host)
-{
-	return sdhci_bcm_kona_get_max_clk(host);
-}
-
 static void sdhci_bcm_kona_init_74_clocks(struct sdhci_host *host,
 				u8 power_mode)
 {
@@ -207,8 +188,8 @@ static void sdhci_bcm_kona_init_74_clocks(struct sdhci_host *host,
 
 static struct sdhci_ops sdhci_bcm_kona_ops = {
 	.set_clock = sdhci_set_clock,
-	.get_max_clock = sdhci_bcm_kona_get_max_clk,
-	.get_timeout_clock = sdhci_bcm_kona_get_timeout_clock,
+	.get_max_clock = sdhci_pltfm_clk_get_max_clock,
+	.get_timeout_clock = sdhci_pltfm_clk_get_max_clock,
 	.platform_send_init_74_clocks = sdhci_bcm_kona_init_74_clocks,
 	.set_bus_width = sdhci_set_bus_width,
 	.reset = sdhci_reset,
@@ -264,21 +245,21 @@ static int sdhci_bcm_kona_probe(struct platform_device *pdev)
 		goto err_pltfm_free;
 	}
 
-	/* Get and enable the external clock */
-	kona_dev->external_clk = devm_clk_get(dev, NULL);
-	if (IS_ERR(kona_dev->external_clk)) {
-		dev_err(dev, "Failed to get external clock\n");
-		ret = PTR_ERR(kona_dev->external_clk);
+	/* Get and enable the core clock */
+	pltfm_priv->clk = devm_clk_get(dev, NULL);
+	if (IS_ERR(pltfm_priv->clk)) {
+		dev_err(dev, "Failed to get core clock\n");
+		ret = PTR_ERR(pltfm_priv->clk);
 		goto err_pltfm_free;
 	}
 
-	if (clk_set_rate(kona_dev->external_clk, host->mmc->f_max) != 0) {
-		dev_err(dev, "Failed to set rate external clock\n");
+	if (clk_set_rate(pltfm_priv->clk, host->mmc->f_max) != 0) {
+		dev_err(dev, "Failed to set rate core clock\n");
 		goto err_pltfm_free;
 	}
 
-	if (clk_prepare_enable(kona_dev->external_clk) != 0) {
-		dev_err(dev, "Failed to enable external clock\n");
+	if (clk_prepare_enable(pltfm_priv->clk) != 0) {
+		dev_err(dev, "Failed to enable core clock\n");
 		goto err_pltfm_free;
 	}
 
@@ -333,7 +314,7 @@ err_reset:
 	sdhci_bcm_kona_sd_reset(host);
 
 err_clk_disable:
-	clk_disable_unprepare(kona_dev->external_clk);
+	clk_disable_unprepare(pltfm_priv->clk);
 
 err_pltfm_free:
 	sdhci_pltfm_free(pdev);
@@ -342,22 +323,6 @@ err_pltfm_free:
 	return ret;
 }
 
-static int sdhci_bcm_kona_remove(struct platform_device *pdev)
-{
-	struct sdhci_host *host = platform_get_drvdata(pdev);
-	struct sdhci_pltfm_host *pltfm_priv = sdhci_priv(host);
-	struct sdhci_bcm_kona_dev *kona_dev = sdhci_pltfm_priv(pltfm_priv);
-	int dead = (readl(host->ioaddr + SDHCI_INT_STATUS) == 0xffffffff);
-
-	sdhci_remove_host(host, dead);
-
-	clk_disable_unprepare(kona_dev->external_clk);
-
-	sdhci_pltfm_free(pdev);
-
-	return 0;
-}
-
 static struct platform_driver sdhci_bcm_kona_driver = {
 	.driver		= {
 		.name	= "sdhci-kona",
@@ -365,7 +330,7 @@ static struct platform_driver sdhci_bcm_kona_driver = {
 		.of_match_table = sdhci_bcm_kona_of_match,
 	},
 	.probe		= sdhci_bcm_kona_probe,
-	.remove		= sdhci_bcm_kona_remove,
+	.remove		= sdhci_pltfm_unregister,
 };
 module_platform_driver(sdhci_bcm_kona_driver);
 
diff --git a/drivers/mmc/host/sdhci-bcm2835.c b/drivers/mmc/host/sdhci-bcm2835.c
index 439d259..0ef0343 100644
--- a/drivers/mmc/host/sdhci-bcm2835.c
+++ b/drivers/mmc/host/sdhci-bcm2835.c
@@ -180,11 +180,6 @@ err:
 	return ret;
 }
 
-static int bcm2835_sdhci_remove(struct platform_device *pdev)
-{
-	return sdhci_pltfm_unregister(pdev);
-}
-
 static const struct of_device_id bcm2835_sdhci_of_match[] = {
 	{ .compatible = "brcm,bcm2835-sdhci" },
 	{ }
@@ -198,7 +193,7 @@ static struct platform_driver bcm2835_sdhci_driver = {
 		.pm = SDHCI_PLTFM_PMOPS,
 	},
 	.probe = bcm2835_sdhci_probe,
-	.remove = bcm2835_sdhci_remove,
+	.remove = sdhci_pltfm_unregister,
 };
 module_platform_driver(bcm2835_sdhci_driver);
 
diff --git a/drivers/mmc/host/sdhci-cns3xxx.c b/drivers/mmc/host/sdhci-cns3xxx.c
index a7935a8..59f2923 100644
--- a/drivers/mmc/host/sdhci-cns3xxx.c
+++ b/drivers/mmc/host/sdhci-cns3xxx.c
@@ -98,18 +98,13 @@ static int sdhci_cns3xxx_probe(struct platform_device *pdev)
 	return sdhci_pltfm_register(pdev, &sdhci_cns3xxx_pdata, 0);
 }
 
-static int sdhci_cns3xxx_remove(struct platform_device *pdev)
-{
-	return sdhci_pltfm_unregister(pdev);
-}
-
 static struct platform_driver sdhci_cns3xxx_driver = {
 	.driver		= {
 		.name	= "sdhci-cns3xxx",
 		.pm	= SDHCI_PLTFM_PMOPS,
 	},
 	.probe		= sdhci_cns3xxx_probe,
-	.remove		= sdhci_cns3xxx_remove,
+	.remove		= sdhci_pltfm_unregister,
 };
 
 module_platform_driver(sdhci_cns3xxx_driver);
diff --git a/drivers/mmc/host/sdhci-dove.c b/drivers/mmc/host/sdhci-dove.c
index ca969d2..407c21f 100644
--- a/drivers/mmc/host/sdhci-dove.c
+++ b/drivers/mmc/host/sdhci-dove.c
@@ -28,10 +28,6 @@
 
 #include "sdhci-pltfm.h"
 
-struct sdhci_dove_priv {
-	struct clk *clk;
-};
-
 static u16 sdhci_dove_readw(struct sdhci_host *host, int reg)
 {
 	u16 ret;
@@ -84,27 +80,17 @@ static int sdhci_dove_probe(struct platform_device *pdev)
 {
 	struct sdhci_host *host;
 	struct sdhci_pltfm_host *pltfm_host;
-	struct sdhci_dove_priv *priv;
 	int ret;
 
-	priv = devm_kzalloc(&pdev->dev, sizeof(struct sdhci_dove_priv),
-			    GFP_KERNEL);
-	if (!priv) {
-		dev_err(&pdev->dev, "unable to allocate private data");
-		return -ENOMEM;
-	}
-
-	priv->clk = devm_clk_get(&pdev->dev, NULL);
-
 	host = sdhci_pltfm_init(pdev, &sdhci_dove_pdata, 0);
 	if (IS_ERR(host))
 		return PTR_ERR(host);
 
 	pltfm_host = sdhci_priv(host);
-	pltfm_host->priv = priv;
+	pltfm_host->clk = devm_clk_get(&pdev->dev, NULL);
 
-	if (!IS_ERR(priv->clk))
-		clk_prepare_enable(priv->clk);
+	if (!IS_ERR(pltfm_host->clk))
+		clk_prepare_enable(pltfm_host->clk);
 
 	ret = mmc_of_parse(host->mmc);
 	if (ret)
@@ -117,26 +103,11 @@ static int sdhci_dove_probe(struct platform_device *pdev)
 	return 0;
 
 err_sdhci_add:
-	if (!IS_ERR(priv->clk))
-		clk_disable_unprepare(priv->clk);
+	clk_disable_unprepare(pltfm_host->clk);
 	sdhci_pltfm_free(pdev);
 	return ret;
 }
 
-static int sdhci_dove_remove(struct platform_device *pdev)
-{
-	struct sdhci_host *host = platform_get_drvdata(pdev);
-	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
-	struct sdhci_dove_priv *priv = pltfm_host->priv;
-
-	sdhci_pltfm_unregister(pdev);
-
-	if (!IS_ERR(priv->clk))
-		clk_disable_unprepare(priv->clk);
-
-	return 0;
-}
-
 static const struct of_device_id sdhci_dove_of_match_table[] = {
 	{ .compatible = "marvell,dove-sdhci", },
 	{}
@@ -150,7 +121,7 @@ static struct platform_driver sdhci_dove_driver = {
 		.of_match_table = sdhci_dove_of_match_table,
 	},
 	.probe		= sdhci_dove_probe,
-	.remove		= sdhci_dove_remove,
+	.remove		= sdhci_pltfm_unregister,
 };
 
 module_platform_driver(sdhci_dove_driver);
diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c
index 10ef824..82f512d 100644
--- a/drivers/mmc/host/sdhci-esdhc-imx.c
+++ b/drivers/mmc/host/sdhci-esdhc-imx.c
@@ -416,7 +416,7 @@ static void esdhc_writew_le(struct sdhci_host *host, u16 val, int reg)
 			new_val |= ESDHC_VENDOR_SPEC_FRC_SDCLK_ON;
 		else
 			new_val &= ~ESDHC_VENDOR_SPEC_FRC_SDCLK_ON;
-			writel(new_val, host->ioaddr + ESDHC_VENDOR_SPEC);
+		writel(new_val, host->ioaddr + ESDHC_VENDOR_SPEC);
 		return;
 	case SDHCI_HOST_CONTROL2:
 		new_val = readl(host->ioaddr + ESDHC_VENDOR_SPEC);
@@ -864,6 +864,7 @@ static const struct sdhci_pltfm_data sdhci_esdhc_imx_pdata = {
 #ifdef CONFIG_OF
 static int
 sdhci_esdhc_imx_probe_dt(struct platform_device *pdev,
+			 struct sdhci_host *host,
 			 struct esdhc_platform_data *boarddata)
 {
 	struct device_node *np = pdev->dev.of_node;
@@ -900,11 +901,14 @@ sdhci_esdhc_imx_probe_dt(struct platform_device *pdev,
 	if (of_property_read_u32(np, "fsl,delay-line", &boarddata->delay_line))
 		boarddata->delay_line = 0;
 
+	mmc_of_parse_voltage(np, &host->ocr_mask);
+
 	return 0;
 }
 #else
 static inline int
 sdhci_esdhc_imx_probe_dt(struct platform_device *pdev,
+			 struct sdhci_host *host,
 			 struct esdhc_platform_data *boarddata)
 {
 	return -ENODEV;
@@ -999,7 +1003,7 @@ static int sdhci_esdhc_imx_probe(struct platform_device *pdev)
 			host->ioaddr + ESDHC_TUNING_CTRL);
 
 	boarddata = &imx_data->boarddata;
-	if (sdhci_esdhc_imx_probe_dt(pdev, boarddata) < 0) {
+	if (sdhci_esdhc_imx_probe_dt(pdev, host, boarddata) < 0) {
 		if (!host->mmc->parent->platform_data) {
 			dev_err(mmc_dev(host->mmc), "no board data!\n");
 			err = -EINVAL;
@@ -1009,40 +1013,9 @@ static int sdhci_esdhc_imx_probe(struct platform_device *pdev)
 					host->mmc->parent->platform_data);
 	}
 
-	/* write_protect */
-	if (boarddata->wp_type == ESDHC_WP_GPIO) {
-		err = mmc_gpio_request_ro(host->mmc, boarddata->wp_gpio);
-		if (err) {
-			dev_err(mmc_dev(host->mmc),
-				"failed to request write-protect gpio!\n");
-			goto disable_clk;
-		}
-		host->mmc->caps2 |= MMC_CAP2_RO_ACTIVE_HIGH;
-	}
-
 	/* card_detect */
-	switch (boarddata->cd_type) {
-	case ESDHC_CD_GPIO:
-		err = mmc_gpio_request_cd(host->mmc, boarddata->cd_gpio, 0);
-		if (err) {
-			dev_err(mmc_dev(host->mmc),
-				"failed to request card-detect gpio!\n");
-			goto disable_clk;
-		}
-		/* fall through */
-
-	case ESDHC_CD_CONTROLLER:
-		/* we have a working card_detect back */
+	if (boarddata->cd_type == ESDHC_CD_CONTROLLER)
 		host->quirks &= ~SDHCI_QUIRK_BROKEN_CARD_DETECTION;
-		break;
-
-	case ESDHC_CD_PERMANENT:
-		host->mmc->caps |= MMC_CAP_NONREMOVABLE;
-		break;
-
-	case ESDHC_CD_NONE:
-		break;
-	}
 
 	switch (boarddata->max_bus_width) {
 	case 8:
@@ -1075,6 +1048,11 @@ static int sdhci_esdhc_imx_probe(struct platform_device *pdev)
 		host->quirks2 |= SDHCI_QUIRK2_NO_1_8_V;
 	}
 
+	/* call to generic mmc_of_parse to support additional capabilities */
+	err = mmc_of_parse(host->mmc);
+	if (err)
+		goto disable_clk;
+
 	err = sdhci_add_host(host);
 	if (err)
 		goto disable_clk;
diff --git a/drivers/mmc/host/sdhci-iproc.c b/drivers/mmc/host/sdhci-iproc.c
new file mode 100644
index 0000000..3b423b0
--- /dev/null
+++ b/drivers/mmc/host/sdhci-iproc.c
@@ -0,0 +1,241 @@
+/*
+ * Copyright (C) 2014 Broadcom Corporation
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation version 2.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+/*
+ * iProc SDHCI platform driver
+ */
+
+#include <linux/delay.h>
+#include <linux/module.h>
+#include <linux/mmc/host.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include "sdhci-pltfm.h"
+
+struct sdhci_iproc_data {
+	const struct sdhci_pltfm_data *pdata;
+	u32 caps;
+	u32 caps1;
+};
+
+struct sdhci_iproc_host {
+	const struct sdhci_iproc_data *data;
+	u32 shadow_cmd;
+	u32 shadow_blk;
+};
+
+#define REG_OFFSET_IN_BITS(reg) ((reg) << 3 & 0x18)
+
+static inline u32 sdhci_iproc_readl(struct sdhci_host *host, int reg)
+{
+	u32 val = readl(host->ioaddr + reg);
+
+	pr_debug("%s: readl [0x%02x] 0x%08x\n",
+		 mmc_hostname(host->mmc), reg, val);
+	return val;
+}
+
+static u16 sdhci_iproc_readw(struct sdhci_host *host, int reg)
+{
+	u32 val = sdhci_iproc_readl(host, (reg & ~3));
+	u16 word = val >> REG_OFFSET_IN_BITS(reg) & 0xffff;
+	return word;
+}
+
+static u8 sdhci_iproc_readb(struct sdhci_host *host, int reg)
+{
+	u32 val = sdhci_iproc_readl(host, (reg & ~3));
+	u8 byte = val >> REG_OFFSET_IN_BITS(reg) & 0xff;
+	return byte;
+}
+
+static inline void sdhci_iproc_writel(struct sdhci_host *host, u32 val, int reg)
+{
+	pr_debug("%s: writel [0x%02x] 0x%08x\n",
+		 mmc_hostname(host->mmc), reg, val);
+
+	writel(val, host->ioaddr + reg);
+
+	if (host->clock <= 400000) {
+		/* Round up to micro-second four SD clock delay */
+		if (host->clock)
+			udelay((4 * 1000000 + host->clock - 1) / host->clock);
+		else
+			udelay(10);
+	}
+}
+
+/*
+ * The Arasan has a bugette whereby it may lose the content of successive
+ * writes to the same register that are within two SD-card clock cycles of
+ * each other (a clock domain crossing problem). The data
+ * register does not have this problem, which is just as well - otherwise we'd
+ * have to nobble the DMA engine too.
+ *
+ * This wouldn't be a problem with the code except that we can only write the
+ * controller with 32-bit writes.  So two different 16-bit registers are
+ * written back to back creates the problem.
+ *
+ * In reality, this only happens when SDHCI_BLOCK_SIZE and SDHCI_BLOCK_COUNT
+ * are written followed by SDHCI_TRANSFER_MODE and SDHCI_COMMAND.
+ * The BLOCK_SIZE and BLOCK_COUNT are meaningless until a command issued so
+ * the work around can be further optimized. We can keep shadow values of
+ * BLOCK_SIZE, BLOCK_COUNT, and TRANSFER_MODE until a COMMAND is issued.
+ * Then, write the BLOCK_SIZE+BLOCK_COUNT in a single 32-bit write followed
+ * by the TRANSFER+COMMAND in another 32-bit write.
+ */
+static void sdhci_iproc_writew(struct sdhci_host *host, u16 val, int reg)
+{
+	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
+	struct sdhci_iproc_host *iproc_host = sdhci_pltfm_priv(pltfm_host);
+	u32 word_shift = REG_OFFSET_IN_BITS(reg);
+	u32 mask = 0xffff << word_shift;
+	u32 oldval, newval;
+
+	if (reg == SDHCI_COMMAND) {
+		/* Write the block now as we are issuing a command */
+		if (iproc_host->shadow_blk != 0) {
+			sdhci_iproc_writel(host, iproc_host->shadow_blk,
+				SDHCI_BLOCK_SIZE);
+			iproc_host->shadow_blk = 0;
+		}
+		oldval = iproc_host->shadow_cmd;
+	} else if (reg == SDHCI_BLOCK_SIZE || reg == SDHCI_BLOCK_COUNT) {
+		/* Block size and count are stored in shadow reg */
+		oldval = iproc_host->shadow_blk;
+	} else {
+		/* Read reg, all other registers are not shadowed */
+		oldval = sdhci_iproc_readl(host, (reg & ~3));
+	}
+	newval = (oldval & ~mask) | (val << word_shift);
+
+	if (reg == SDHCI_TRANSFER_MODE) {
+		/* Save the transfer mode until the command is issued */
+		iproc_host->shadow_cmd = newval;
+	} else if (reg == SDHCI_BLOCK_SIZE || reg == SDHCI_BLOCK_COUNT) {
+		/* Save the block info until the command is issued */
+		iproc_host->shadow_blk = newval;
+	} else {
+		/* Command or other regular 32-bit write */
+		sdhci_iproc_writel(host, newval, reg & ~3);
+	}
+}
+
+static void sdhci_iproc_writeb(struct sdhci_host *host, u8 val, int reg)
+{
+	u32 oldval = sdhci_iproc_readl(host, (reg & ~3));
+	u32 byte_shift = REG_OFFSET_IN_BITS(reg);
+	u32 mask = 0xff << byte_shift;
+	u32 newval = (oldval & ~mask) | (val << byte_shift);
+
+	sdhci_iproc_writel(host, newval, reg & ~3);
+}
+
+static const struct sdhci_ops sdhci_iproc_ops = {
+	.read_l = sdhci_iproc_readl,
+	.read_w = sdhci_iproc_readw,
+	.read_b = sdhci_iproc_readb,
+	.write_l = sdhci_iproc_writel,
+	.write_w = sdhci_iproc_writew,
+	.write_b = sdhci_iproc_writeb,
+	.set_clock = sdhci_set_clock,
+	.get_max_clock = sdhci_pltfm_clk_get_max_clock,
+	.set_bus_width = sdhci_set_bus_width,
+	.reset = sdhci_reset,
+	.set_uhs_signaling = sdhci_set_uhs_signaling,
+};
+
+static const struct sdhci_pltfm_data sdhci_iproc_pltfm_data = {
+	.quirks = SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK,
+	.quirks2 = SDHCI_QUIRK2_ACMD23_BROKEN,
+	.ops = &sdhci_iproc_ops,
+};
+
+static const struct sdhci_iproc_data iproc_data = {
+	.pdata = &sdhci_iproc_pltfm_data,
+	.caps = 0x05E90000,
+	.caps1 = 0x00000064,
+};
+
+static const struct of_device_id sdhci_iproc_of_match[] = {
+	{ .compatible = "brcm,sdhci-iproc-cygnus", .data = &iproc_data },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, sdhci_iproc_of_match);
+
+static int sdhci_iproc_probe(struct platform_device *pdev)
+{
+	const struct of_device_id *match;
+	const struct sdhci_iproc_data *iproc_data;
+	struct sdhci_host *host;
+	struct sdhci_iproc_host *iproc_host;
+	struct sdhci_pltfm_host *pltfm_host;
+	int ret;
+
+	match = of_match_device(sdhci_iproc_of_match, &pdev->dev);
+	if (!match)
+		return -EINVAL;
+	iproc_data = match->data;
+
+	host = sdhci_pltfm_init(pdev, iproc_data->pdata, sizeof(*iproc_host));
+	if (IS_ERR(host))
+		return PTR_ERR(host);
+
+	pltfm_host = sdhci_priv(host);
+	iproc_host = sdhci_pltfm_priv(pltfm_host);
+
+	iproc_host->data = iproc_data;
+
+	mmc_of_parse(host->mmc);
+	sdhci_get_of_property(pdev);
+
+	/* Enable EMMC 1/8V DDR capable */
+	host->mmc->caps |= MMC_CAP_1_8V_DDR;
+
+	pltfm_host->clk = devm_clk_get(&pdev->dev, NULL);
+	if (IS_ERR(pltfm_host->clk)) {
+		ret = PTR_ERR(pltfm_host->clk);
+		goto err;
+	}
+
+	if (iproc_host->data->pdata->quirks & SDHCI_QUIRK_MISSING_CAPS) {
+		host->caps = iproc_host->data->caps;
+		host->caps1 = iproc_host->data->caps1;
+	}
+
+	return sdhci_add_host(host);
+
+err:
+	sdhci_pltfm_free(pdev);
+	return ret;
+}
+
+static int sdhci_iproc_remove(struct platform_device *pdev)
+{
+	return sdhci_pltfm_unregister(pdev);
+}
+
+static struct platform_driver sdhci_iproc_driver = {
+	.driver = {
+		.name = "sdhci-iproc",
+		.of_match_table = sdhci_iproc_of_match,
+		.pm = SDHCI_PLTFM_PMOPS,
+	},
+	.probe = sdhci_iproc_probe,
+	.remove = sdhci_iproc_remove,
+};
+module_platform_driver(sdhci_iproc_driver);
+
+MODULE_AUTHOR("Broadcom");
+MODULE_DESCRIPTION("IPROC SDHCI driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/mmc/host/sdhci-msm.c b/drivers/mmc/host/sdhci-msm.c
index 3d32ce8..4a09f76 100644
--- a/drivers/mmc/host/sdhci-msm.c
+++ b/drivers/mmc/host/sdhci-msm.c
@@ -22,6 +22,11 @@
 
 #include "sdhci-pltfm.h"
 
+#define CORE_MCI_VERSION		0x50
+#define CORE_VERSION_MAJOR_SHIFT	28
+#define CORE_VERSION_MAJOR_MASK		(0xf << CORE_VERSION_MAJOR_SHIFT)
+#define CORE_VERSION_MINOR_MASK		0xff
+
 #define CORE_HC_MODE		0x78
 #define HC_MODE_EN		0x1
 #define CORE_POWER		0x0
@@ -41,6 +46,8 @@
 #define CORE_VENDOR_SPEC	0x10c
 #define CORE_CLK_PWRSAVE	BIT(1)
 
+#define CORE_VENDOR_SPEC_CAPABILITIES0	0x11c
+
 #define CDR_SELEXT_SHIFT	20
 #define CDR_SELEXT_MASK		(0xf << CDR_SELEXT_SHIFT)
 #define CMUX_SHIFT_PHASE_SHIFT	24
@@ -426,7 +433,9 @@ static int sdhci_msm_probe(struct platform_device *pdev)
 	struct sdhci_msm_host *msm_host;
 	struct resource *core_memres;
 	int ret;
-	u16 host_version;
+	u16 host_version, core_minor;
+	u32 core_version, caps;
+	u8 core_major;
 
 	msm_host = devm_kzalloc(&pdev->dev, sizeof(*msm_host), GFP_KERNEL);
 	if (!msm_host)
@@ -516,6 +525,24 @@ static int sdhci_msm_probe(struct platform_device *pdev)
 		host_version, ((host_version & SDHCI_VENDOR_VER_MASK) >>
 			       SDHCI_VENDOR_VER_SHIFT));
 
+	core_version = readl_relaxed(msm_host->core_mem + CORE_MCI_VERSION);
+	core_major = (core_version & CORE_VERSION_MAJOR_MASK) >>
+		      CORE_VERSION_MAJOR_SHIFT;
+	core_minor = core_version & CORE_VERSION_MINOR_MASK;
+	dev_dbg(&pdev->dev, "MCI Version: 0x%08x, major: 0x%04x, minor: 0x%02x\n",
+		core_version, core_major, core_minor);
+
+	/*
+	 * Support for some capabilities is not advertised by newer
+	 * controller versions and must be explicitly enabled.
+	 */
+	if (core_major >= 1 && core_minor != 0x11 && core_minor != 0x12) {
+		caps = readl_relaxed(host->ioaddr + SDHCI_CAPABILITIES);
+		caps |= SDHCI_CAN_VDD_300 | SDHCI_CAN_DO_8BIT;
+		writel_relaxed(caps, host->ioaddr +
+			       CORE_VENDOR_SPEC_CAPABILITIES0);
+	}
+
 	ret = sdhci_add_host(host);
 	if (ret)
 		goto clk_disable;
diff --git a/drivers/mmc/host/sdhci-of-arasan.c b/drivers/mmc/host/sdhci-of-arasan.c
index bcb51e9..6287d42 100644
--- a/drivers/mmc/host/sdhci-of-arasan.c
+++ b/drivers/mmc/host/sdhci-of-arasan.c
@@ -173,6 +173,12 @@ static int sdhci_arasan_probe(struct platform_device *pdev)
 	pltfm_host->priv = sdhci_arasan;
 	pltfm_host->clk = clk_xin;
 
+	ret = mmc_of_parse(host->mmc);
+	if (ret) {
+		dev_err(&pdev->dev, "parsing dt failed (%u)\n", ret);
+		goto clk_disable_all;
+	}
+
 	ret = sdhci_add_host(host);
 	if (ret)
 		goto err_pltfm_free;
@@ -195,7 +201,6 @@ static int sdhci_arasan_remove(struct platform_device *pdev)
 	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
 	struct sdhci_arasan_data *sdhci_arasan = pltfm_host->priv;
 
-	clk_disable_unprepare(pltfm_host->clk);
 	clk_disable_unprepare(sdhci_arasan->clk_ahb);
 
 	return sdhci_pltfm_unregister(pdev);
diff --git a/drivers/mmc/host/sdhci-of-esdhc.c b/drivers/mmc/host/sdhci-of-esdhc.c
index 17fe02e..22e9111 100644
--- a/drivers/mmc/host/sdhci-of-esdhc.c
+++ b/drivers/mmc/host/sdhci-of-esdhc.c
@@ -386,11 +386,6 @@ static int sdhci_esdhc_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int sdhci_esdhc_remove(struct platform_device *pdev)
-{
-	return sdhci_pltfm_unregister(pdev);
-}
-
 static const struct of_device_id sdhci_esdhc_of_match[] = {
 	{ .compatible = "fsl,mpc8379-esdhc" },
 	{ .compatible = "fsl,mpc8536-esdhc" },
@@ -406,7 +401,7 @@ static struct platform_driver sdhci_esdhc_driver = {
 		.pm = ESDHC_PMOPS,
 	},
 	.probe = sdhci_esdhc_probe,
-	.remove = sdhci_esdhc_remove,
+	.remove = sdhci_pltfm_unregister,
 };
 
 module_platform_driver(sdhci_esdhc_driver);
diff --git a/drivers/mmc/host/sdhci-of-hlwd.c b/drivers/mmc/host/sdhci-of-hlwd.c
index be47927..4079a96 100644
--- a/drivers/mmc/host/sdhci-of-hlwd.c
+++ b/drivers/mmc/host/sdhci-of-hlwd.c
@@ -75,11 +75,6 @@ static int sdhci_hlwd_probe(struct platform_device *pdev)
 	return sdhci_pltfm_register(pdev, &sdhci_hlwd_pdata, 0);
 }
 
-static int sdhci_hlwd_remove(struct platform_device *pdev)
-{
-	return sdhci_pltfm_unregister(pdev);
-}
-
 static const struct of_device_id sdhci_hlwd_of_match[] = {
 	{ .compatible = "nintendo,hollywood-sdhci" },
 	{ }
@@ -93,7 +88,7 @@ static struct platform_driver sdhci_hlwd_driver = {
 		.pm = SDHCI_PLTFM_PMOPS,
 	},
 	.probe = sdhci_hlwd_probe,
-	.remove = sdhci_hlwd_remove,
+	.remove = sdhci_pltfm_unregister,
 };
 
 module_platform_driver(sdhci_hlwd_driver);
diff --git a/drivers/mmc/host/sdhci-pci.c b/drivers/mmc/host/sdhci-pci.c
index 29eaff7..7a3fc16 100644
--- a/drivers/mmc/host/sdhci-pci.c
+++ b/drivers/mmc/host/sdhci-pci.c
@@ -650,6 +650,7 @@ static int rtsx_probe_slot(struct sdhci_pci_slot *slot)
 
 static const struct sdhci_pci_fixes sdhci_rtsx = {
 	.quirks2	= SDHCI_QUIRK2_PRESET_VALUE_BROKEN |
+			SDHCI_QUIRK2_BROKEN_64_BIT_DMA |
 			SDHCI_QUIRK2_BROKEN_DDR50,
 	.probe_slot	= rtsx_probe_slot,
 };
diff --git a/drivers/mmc/host/sdhci-pltfm.c b/drivers/mmc/host/sdhci-pltfm.c
index c5b01d6..a207f5a 100644
--- a/drivers/mmc/host/sdhci-pltfm.c
+++ b/drivers/mmc/host/sdhci-pltfm.c
@@ -75,43 +75,41 @@ void sdhci_get_of_property(struct platform_device *pdev)
 	u32 bus_width;
 	int size;
 
-	if (of_device_is_available(np)) {
-		if (of_get_property(np, "sdhci,auto-cmd12", NULL))
-			host->quirks |= SDHCI_QUIRK_MULTIBLOCK_READ_ACMD12;
+	if (of_get_property(np, "sdhci,auto-cmd12", NULL))
+		host->quirks |= SDHCI_QUIRK_MULTIBLOCK_READ_ACMD12;
 
-		if (of_get_property(np, "sdhci,1-bit-only", NULL) ||
-		    (of_property_read_u32(np, "bus-width", &bus_width) == 0 &&
-		    bus_width == 1))
-			host->quirks |= SDHCI_QUIRK_FORCE_1_BIT_DATA;
+	if (of_get_property(np, "sdhci,1-bit-only", NULL) ||
+	    (of_property_read_u32(np, "bus-width", &bus_width) == 0 &&
+	    bus_width == 1))
+		host->quirks |= SDHCI_QUIRK_FORCE_1_BIT_DATA;
 
-		if (sdhci_of_wp_inverted(np))
-			host->quirks |= SDHCI_QUIRK_INVERTED_WRITE_PROTECT;
+	if (sdhci_of_wp_inverted(np))
+		host->quirks |= SDHCI_QUIRK_INVERTED_WRITE_PROTECT;
 
-		if (of_get_property(np, "broken-cd", NULL))
-			host->quirks |= SDHCI_QUIRK_BROKEN_CARD_DETECTION;
+	if (of_get_property(np, "broken-cd", NULL))
+		host->quirks |= SDHCI_QUIRK_BROKEN_CARD_DETECTION;
 
-		if (of_get_property(np, "no-1-8-v", NULL))
-			host->quirks2 |= SDHCI_QUIRK2_NO_1_8_V;
+	if (of_get_property(np, "no-1-8-v", NULL))
+		host->quirks2 |= SDHCI_QUIRK2_NO_1_8_V;
 
-		if (of_device_is_compatible(np, "fsl,p2020-rev1-esdhc"))
-			host->quirks |= SDHCI_QUIRK_BROKEN_DMA;
+	if (of_device_is_compatible(np, "fsl,p2020-rev1-esdhc"))
+		host->quirks |= SDHCI_QUIRK_BROKEN_DMA;
 
-		if (of_device_is_compatible(np, "fsl,p2020-esdhc") ||
-		    of_device_is_compatible(np, "fsl,p1010-esdhc") ||
-		    of_device_is_compatible(np, "fsl,t4240-esdhc") ||
-		    of_device_is_compatible(np, "fsl,mpc8536-esdhc"))
-			host->quirks |= SDHCI_QUIRK_BROKEN_TIMEOUT_VAL;
+	if (of_device_is_compatible(np, "fsl,p2020-esdhc") ||
+	    of_device_is_compatible(np, "fsl,p1010-esdhc") ||
+	    of_device_is_compatible(np, "fsl,t4240-esdhc") ||
+	    of_device_is_compatible(np, "fsl,mpc8536-esdhc"))
+		host->quirks |= SDHCI_QUIRK_BROKEN_TIMEOUT_VAL;
 
-		clk = of_get_property(np, "clock-frequency", &size);
-		if (clk && size == sizeof(*clk) && *clk)
-			pltfm_host->clock = be32_to_cpup(clk);
+	clk = of_get_property(np, "clock-frequency", &size);
+	if (clk && size == sizeof(*clk) && *clk)
+		pltfm_host->clock = be32_to_cpup(clk);
 
-		if (of_find_property(np, "keep-power-in-suspend", NULL))
-			host->mmc->pm_caps |= MMC_PM_KEEP_POWER;
+	if (of_find_property(np, "keep-power-in-suspend", NULL))
+		host->mmc->pm_caps |= MMC_PM_KEEP_POWER;
 
-		if (of_find_property(np, "enable-sdio-wakeup", NULL))
-			host->mmc->pm_caps |= MMC_PM_WAKE_SDIO_IRQ;
-	}
+	if (of_find_property(np, "enable-sdio-wakeup", NULL))
+		host->mmc->pm_caps |= MMC_PM_WAKE_SDIO_IRQ;
 }
 #else
 void sdhci_get_of_property(struct platform_device *pdev) {}
@@ -225,9 +223,11 @@ EXPORT_SYMBOL_GPL(sdhci_pltfm_register);
 int sdhci_pltfm_unregister(struct platform_device *pdev)
 {
 	struct sdhci_host *host = platform_get_drvdata(pdev);
+	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
 	int dead = (readl(host->ioaddr + SDHCI_INT_STATUS) == 0xffffffff);
 
 	sdhci_remove_host(host, dead);
+	clk_disable_unprepare(pltfm_host->clk);
 	sdhci_pltfm_free(pdev);
 
 	return 0;
diff --git a/drivers/mmc/host/sdhci-sirf.c b/drivers/mmc/host/sdhci-sirf.c
index f6f82ec..32848eb 100644
--- a/drivers/mmc/host/sdhci-sirf.c
+++ b/drivers/mmc/host/sdhci-sirf.c
@@ -20,17 +20,9 @@
 #define SIRF_TUNING_COUNT 128
 
 struct sdhci_sirf_priv {
-	struct clk *clk;
 	int gpio_cd;
 };
 
-static unsigned int sdhci_sirf_get_max_clk(struct sdhci_host *host)
-{
-	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
-	struct sdhci_sirf_priv *priv = sdhci_pltfm_priv(pltfm_host);
-	return clk_get_rate(priv->clk);
-}
-
 static void sdhci_sirf_set_bus_width(struct sdhci_host *host, int width)
 {
 	u8 ctrl;
@@ -56,7 +48,7 @@ static int sdhci_sirf_execute_tuning(struct sdhci_host *host, u32 opcode)
 	int tuning_seq_cnt = 3;
 	u8 phase, tuned_phases[SIRF_TUNING_COUNT];
 	u8 tuned_phase_cnt = 0;
-	int rc, longest_range = 0;
+	int rc = 0, longest_range = 0;
 	int start = -1, end = 0, tuning_value = -1, range = 0;
 	u16 clock_setting;
 	struct mmc_host *mmc = host->mmc;
@@ -68,7 +60,7 @@ retry:
 	phase = 0;
 	do {
 		sdhci_writel(host,
-			clock_setting | phase | (phase << 7) | (phase << 16),
+			clock_setting | phase,
 			SDHCI_CLK_DELAY_SETTING);
 
 		if (!mmc_send_tuning(mmc)) {
@@ -102,7 +94,7 @@ retry:
 		 */
 		phase = tuning_value;
 		sdhci_writel(host,
-			clock_setting | phase | (phase << 7) | (phase << 16),
+			clock_setting | phase,
 			SDHCI_CLK_DELAY_SETTING);
 
 		dev_dbg(mmc_dev(mmc), "%s: Setting the tuning phase to %d\n",
@@ -122,7 +114,7 @@ retry:
 static struct sdhci_ops sdhci_sirf_ops = {
 	.platform_execute_tuning = sdhci_sirf_execute_tuning,
 	.set_clock = sdhci_set_clock,
-	.get_max_clock	= sdhci_sirf_get_max_clk,
+	.get_max_clock	= sdhci_pltfm_clk_get_max_clock,
 	.set_bus_width = sdhci_sirf_set_bus_width,
 	.reset = sdhci_reset,
 	.set_uhs_signaling = sdhci_set_uhs_signaling,
@@ -162,13 +154,13 @@ static int sdhci_sirf_probe(struct platform_device *pdev)
 		return PTR_ERR(host);
 
 	pltfm_host = sdhci_priv(host);
+	pltfm_host->clk = clk;
 	priv = sdhci_pltfm_priv(pltfm_host);
-	priv->clk = clk;
 	priv->gpio_cd = gpio_cd;
 
 	sdhci_get_of_property(pdev);
 
-	ret = clk_prepare_enable(priv->clk);
+	ret = clk_prepare_enable(pltfm_host->clk);
 	if (ret)
 		goto err_clk_prepare;
 
@@ -195,37 +187,24 @@ static int sdhci_sirf_probe(struct platform_device *pdev)
 err_request_cd:
 	sdhci_remove_host(host, 0);
 err_sdhci_add:
-	clk_disable_unprepare(priv->clk);
+	clk_disable_unprepare(pltfm_host->clk);
 err_clk_prepare:
 	sdhci_pltfm_free(pdev);
 	return ret;
 }
 
-static int sdhci_sirf_remove(struct platform_device *pdev)
-{
-	struct sdhci_host *host = platform_get_drvdata(pdev);
-	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
-	struct sdhci_sirf_priv *priv = sdhci_pltfm_priv(pltfm_host);
-
-	sdhci_pltfm_unregister(pdev);
-
-	clk_disable_unprepare(priv->clk);
-	return 0;
-}
-
 #ifdef CONFIG_PM_SLEEP
 static int sdhci_sirf_suspend(struct device *dev)
 {
 	struct sdhci_host *host = dev_get_drvdata(dev);
 	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
-	struct sdhci_sirf_priv *priv = sdhci_pltfm_priv(pltfm_host);
 	int ret;
 
 	ret = sdhci_suspend_host(host);
 	if (ret)
 		return ret;
 
-	clk_disable(priv->clk);
+	clk_disable(pltfm_host->clk);
 
 	return 0;
 }
@@ -234,10 +213,9 @@ static int sdhci_sirf_resume(struct device *dev)
 {
 	struct sdhci_host *host = dev_get_drvdata(dev);
 	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
-	struct sdhci_sirf_priv *priv = sdhci_pltfm_priv(pltfm_host);
 	int ret;
 
-	ret = clk_enable(priv->clk);
+	ret = clk_enable(pltfm_host->clk);
 	if (ret) {
 		dev_dbg(dev, "Resume: Error enabling clock\n");
 		return ret;
@@ -264,7 +242,7 @@ static struct platform_driver sdhci_sirf_driver = {
 #endif
 	},
 	.probe		= sdhci_sirf_probe,
-	.remove		= sdhci_sirf_remove,
+	.remove		= sdhci_pltfm_unregister,
 };
 
 module_platform_driver(sdhci_sirf_driver);
diff --git a/drivers/mmc/host/sdhci-spear.c b/drivers/mmc/host/sdhci-spear.c
index 22e5826..df08834 100644
--- a/drivers/mmc/host/sdhci-spear.c
+++ b/drivers/mmc/host/sdhci-spear.c
@@ -26,14 +26,13 @@
 #include <linux/pm.h>
 #include <linux/slab.h>
 #include <linux/mmc/host.h>
-#include <linux/mmc/sdhci-spear.h>
 #include <linux/mmc/slot-gpio.h>
 #include <linux/io.h>
 #include "sdhci.h"
 
 struct spear_sdhci {
 	struct clk *clk;
-	struct sdhci_plat_data *data;
+	int card_int_gpio;
 };
 
 /* sdhci ops */
@@ -44,38 +43,20 @@ static const struct sdhci_ops sdhci_pltfm_ops = {
 	.set_uhs_signaling = sdhci_set_uhs_signaling,
 };
 
-#ifdef CONFIG_OF
-static struct sdhci_plat_data *sdhci_probe_config_dt(struct platform_device *pdev)
+static void sdhci_probe_config_dt(struct device_node *np,
+				struct spear_sdhci *host)
 {
-	struct device_node *np = pdev->dev.of_node;
-	struct sdhci_plat_data *pdata = NULL;
 	int cd_gpio;
 
 	cd_gpio = of_get_named_gpio(np, "cd-gpios", 0);
 	if (!gpio_is_valid(cd_gpio))
 		cd_gpio = -1;
 
-	/* If pdata is required */
-	if (cd_gpio != -1) {
-		pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
-		if (!pdata)
-			dev_err(&pdev->dev, "DT: kzalloc failed\n");
-		else
-			pdata->card_int_gpio = cd_gpio;
-	}
-
-	return pdata;
-}
-#else
-static struct sdhci_plat_data *sdhci_probe_config_dt(struct platform_device *pdev)
-{
-	return ERR_PTR(-ENOSYS);
+	host->card_int_gpio = cd_gpio;
 }
-#endif
 
 static int sdhci_probe(struct platform_device *pdev)
 {
-	struct device_node *np = pdev->dev.of_node;
 	struct sdhci_host *host;
 	struct resource *iomem;
 	struct spear_sdhci *sdhci;
@@ -124,28 +105,18 @@ static int sdhci_probe(struct platform_device *pdev)
 		dev_dbg(&pdev->dev, "Error setting desired clk, clk=%lu\n",
 				clk_get_rate(sdhci->clk));
 
-	if (np) {
-		sdhci->data = sdhci_probe_config_dt(pdev);
-		if (IS_ERR(sdhci->data)) {
-			dev_err(&pdev->dev, "DT: Failed to get pdata\n");
-			goto disable_clk;
-		}
-	} else {
-		sdhci->data = dev_get_platdata(&pdev->dev);
-	}
-
+	sdhci_probe_config_dt(pdev->dev.of_node, sdhci);
 	/*
 	 * It is optional to use GPIOs for sdhci card detection. If
-	 * sdhci->data is NULL, then use original sdhci lines otherwise
+	 * sdhci->card_int_gpio < 0, then use original sdhci lines otherwise
 	 * GPIO lines. We use the built-in GPIO support for this.
 	 */
-	if (sdhci->data && sdhci->data->card_int_gpio >= 0) {
-		ret = mmc_gpio_request_cd(host->mmc,
-					  sdhci->data->card_int_gpio, 0);
+	if (sdhci->card_int_gpio >= 0) {
+		ret = mmc_gpio_request_cd(host->mmc, sdhci->card_int_gpio, 0);
 		if (ret < 0) {
 			dev_dbg(&pdev->dev,
 				"failed to request card-detect gpio%d\n",
-				sdhci->data->card_int_gpio);
+				sdhci->card_int_gpio);
 			goto disable_clk;
 		}
 	}
diff --git a/drivers/mmc/host/sdhci-st.c b/drivers/mmc/host/sdhci-st.c
index 882b07e..682f2bb 100644
--- a/drivers/mmc/host/sdhci-st.c
+++ b/drivers/mmc/host/sdhci-st.c
@@ -23,9 +23,295 @@
 #include <linux/module.h>
 #include <linux/err.h>
 #include <linux/mmc/host.h>
-
+#include <linux/reset.h>
 #include "sdhci-pltfm.h"
 
+struct st_mmc_platform_data {
+	struct  reset_control *rstc;
+	void __iomem *top_ioaddr;
+};
+
+/* MMCSS glue logic to setup the HC on some ST SoCs (e.g. STiH407 family) */
+
+#define ST_MMC_CCONFIG_REG_1		0x400
+#define ST_MMC_CCONFIG_TIMEOUT_CLK_UNIT	BIT(24)
+#define ST_MMC_CCONFIG_TIMEOUT_CLK_FREQ	BIT(12)
+#define ST_MMC_CCONFIG_TUNING_COUNT_DEFAULT	BIT(8)
+#define ST_MMC_CCONFIG_ASYNC_WAKEUP	BIT(0)
+#define ST_MMC_CCONFIG_1_DEFAULT	\
+				((ST_MMC_CCONFIG_TIMEOUT_CLK_UNIT) | \
+				 (ST_MMC_CCONFIG_TIMEOUT_CLK_FREQ) | \
+				 (ST_MMC_CCONFIG_TUNING_COUNT_DEFAULT))
+
+#define ST_MMC_CCONFIG_REG_2		0x404
+#define ST_MMC_CCONFIG_HIGH_SPEED	BIT(28)
+#define ST_MMC_CCONFIG_ADMA2		BIT(24)
+#define ST_MMC_CCONFIG_8BIT		BIT(20)
+#define ST_MMC_CCONFIG_MAX_BLK_LEN	16
+#define  MAX_BLK_LEN_1024		1
+#define  MAX_BLK_LEN_2048		2
+#define BASE_CLK_FREQ_200		0xc8
+#define BASE_CLK_FREQ_100		0x64
+#define BASE_CLK_FREQ_50		0x32
+#define ST_MMC_CCONFIG_2_DEFAULT \
+	(ST_MMC_CCONFIG_HIGH_SPEED | ST_MMC_CCONFIG_ADMA2 | \
+	 ST_MMC_CCONFIG_8BIT | \
+	 (MAX_BLK_LEN_1024 << ST_MMC_CCONFIG_MAX_BLK_LEN))
+
+#define ST_MMC_CCONFIG_REG_3			0x408
+#define ST_MMC_CCONFIG_EMMC_SLOT_TYPE		BIT(28)
+#define ST_MMC_CCONFIG_64BIT			BIT(24)
+#define ST_MMC_CCONFIG_ASYNCH_INTR_SUPPORT	BIT(20)
+#define ST_MMC_CCONFIG_1P8_VOLT			BIT(16)
+#define ST_MMC_CCONFIG_3P0_VOLT			BIT(12)
+#define ST_MMC_CCONFIG_3P3_VOLT			BIT(8)
+#define ST_MMC_CCONFIG_SUSP_RES_SUPPORT		BIT(4)
+#define ST_MMC_CCONFIG_SDMA			BIT(0)
+#define ST_MMC_CCONFIG_3_DEFAULT	\
+			 (ST_MMC_CCONFIG_ASYNCH_INTR_SUPPORT	| \
+			  ST_MMC_CCONFIG_3P3_VOLT		| \
+			  ST_MMC_CCONFIG_SUSP_RES_SUPPORT	| \
+			  ST_MMC_CCONFIG_SDMA)
+
+#define ST_MMC_CCONFIG_REG_4	0x40c
+#define ST_MMC_CCONFIG_D_DRIVER	BIT(20)
+#define ST_MMC_CCONFIG_C_DRIVER	BIT(16)
+#define ST_MMC_CCONFIG_A_DRIVER	BIT(12)
+#define ST_MMC_CCONFIG_DDR50	BIT(8)
+#define ST_MMC_CCONFIG_SDR104	BIT(4)
+#define ST_MMC_CCONFIG_SDR50	BIT(0)
+#define ST_MMC_CCONFIG_4_DEFAULT	0
+
+#define ST_MMC_CCONFIG_REG_5		0x410
+#define ST_MMC_CCONFIG_TUNING_FOR_SDR50	BIT(8)
+#define RETUNING_TIMER_CNT_MAX		0xf
+#define ST_MMC_CCONFIG_5_DEFAULT	0
+
+/* I/O configuration for Arasan IP */
+#define ST_MMC_GP_OUTPUT	0x450
+#define ST_MMC_GP_OUTPUT_CD	BIT(12)
+
+#define ST_MMC_STATUS_R		0x460
+
+#define ST_TOP_MMC_DLY_FIX_OFF(x)	(x - 0x8)
+
+/* TOP config registers to manage static and dynamic delay */
+#define ST_TOP_MMC_TX_CLK_DLY			ST_TOP_MMC_DLY_FIX_OFF(0x8)
+#define ST_TOP_MMC_RX_CLK_DLY			ST_TOP_MMC_DLY_FIX_OFF(0xc)
+/* MMC delay control register */
+#define ST_TOP_MMC_DLY_CTRL			ST_TOP_MMC_DLY_FIX_OFF(0x18)
+#define ST_TOP_MMC_DLY_CTRL_DLL_BYPASS_CMD	BIT(0)
+#define ST_TOP_MMC_DLY_CTRL_DLL_BYPASS_PH_SEL	BIT(1)
+#define ST_TOP_MMC_DLY_CTRL_TX_DLL_ENABLE	BIT(8)
+#define ST_TOP_MMC_DLY_CTRL_RX_DLL_ENABLE	BIT(9)
+#define ST_TOP_MMC_DLY_CTRL_ATUNE_NOT_CFG_DLY	BIT(10)
+#define ST_TOP_MMC_START_DLL_LOCK		BIT(11)
+
+/* register to provide the phase-shift value for DLL */
+#define ST_TOP_MMC_TX_DLL_STEP_DLY		ST_TOP_MMC_DLY_FIX_OFF(0x1c)
+#define ST_TOP_MMC_RX_DLL_STEP_DLY		ST_TOP_MMC_DLY_FIX_OFF(0x20)
+#define ST_TOP_MMC_RX_CMD_STEP_DLY		ST_TOP_MMC_DLY_FIX_OFF(0x24)
+
+/* phase shift delay on the tx clk 2.188ns */
+#define ST_TOP_MMC_TX_DLL_STEP_DLY_VALID	0x6
+
+#define ST_TOP_MMC_DLY_MAX			0xf
+
+#define ST_TOP_MMC_DYN_DLY_CONF	\
+		(ST_TOP_MMC_DLY_CTRL_TX_DLL_ENABLE | \
+		 ST_TOP_MMC_DLY_CTRL_ATUNE_NOT_CFG_DLY | \
+		 ST_TOP_MMC_START_DLL_LOCK)
+
+/*
+ * For clock speeds greater than 90MHz, we need to check that the
+ * DLL procedure has finished before switching to ultra-speed modes.
+ */
+#define	CLK_TO_CHECK_DLL_LOCK	90000000
+
+static inline void st_mmcss_set_static_delay(void __iomem *ioaddr)
+{
+	if (!ioaddr)
+		return;
+
+	writel_relaxed(0x0, ioaddr + ST_TOP_MMC_DLY_CTRL);
+	writel_relaxed(ST_TOP_MMC_DLY_MAX,
+			ioaddr + ST_TOP_MMC_TX_CLK_DLY);
+}
+
+/**
+ * st_mmcss_cconfig: configure the Arasan HC inside the flashSS.
+ * @np: dt device node.
+ * @host: sdhci host
+ * Description: this function is to configure the Arasan host controller.
+ * On some ST SoCs, i.e. STiH407 family, the MMC devices inside a dedicated
+ * flashSS sub-system which needs to be configured to be compliant to eMMC 4.5
+ * or eMMC4.3.  This has to be done before registering the sdhci host.
+ */
+static void st_mmcss_cconfig(struct device_node *np, struct sdhci_host *host)
+{
+	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
+	struct mmc_host *mhost = host->mmc;
+	u32 cconf2, cconf3, cconf4, cconf5;
+
+	if (!of_device_is_compatible(np, "st,sdhci-stih407"))
+		return;
+
+	cconf2 = ST_MMC_CCONFIG_2_DEFAULT;
+	cconf3 = ST_MMC_CCONFIG_3_DEFAULT;
+	cconf4 = ST_MMC_CCONFIG_4_DEFAULT;
+	cconf5 = ST_MMC_CCONFIG_5_DEFAULT;
+
+	writel_relaxed(ST_MMC_CCONFIG_1_DEFAULT,
+			host->ioaddr + ST_MMC_CCONFIG_REG_1);
+
+	/* Set clock frequency, default to 50MHz if max-frequency is not
+	 * provided */
+
+	switch (mhost->f_max) {
+	case 200000000:
+		clk_set_rate(pltfm_host->clk, mhost->f_max);
+		cconf2 |= BASE_CLK_FREQ_200;
+		break;
+	case 100000000:
+		clk_set_rate(pltfm_host->clk, mhost->f_max);
+		cconf2 |= BASE_CLK_FREQ_100;
+		break;
+	default:
+		clk_set_rate(pltfm_host->clk, 50000000);
+		cconf2 |= BASE_CLK_FREQ_50;
+	}
+
+	writel_relaxed(cconf2, host->ioaddr + ST_MMC_CCONFIG_REG_2);
+
+	if (mhost->caps & MMC_CAP_NONREMOVABLE)
+		cconf3 |= ST_MMC_CCONFIG_EMMC_SLOT_TYPE;
+	else
+		/* CARD _D ET_CTRL */
+		writel_relaxed(ST_MMC_GP_OUTPUT_CD,
+				host->ioaddr + ST_MMC_GP_OUTPUT);
+
+	if (mhost->caps & MMC_CAP_UHS_SDR50) {
+		/* use 1.8V */
+		cconf3 |= ST_MMC_CCONFIG_1P8_VOLT;
+		cconf4 |= ST_MMC_CCONFIG_SDR50;
+		/* Use tuning */
+		cconf5 |= ST_MMC_CCONFIG_TUNING_FOR_SDR50;
+		/* Max timeout for retuning */
+		cconf5 |= RETUNING_TIMER_CNT_MAX;
+	}
+
+	if (mhost->caps & MMC_CAP_UHS_SDR104) {
+		/*
+		 * SDR104 implies the HC can support HS200 mode, so
+		 * it's mandatory to use 1.8V
+		 */
+		cconf3 |= ST_MMC_CCONFIG_1P8_VOLT;
+		cconf4 |= ST_MMC_CCONFIG_SDR104;
+		/* Max timeout for retuning */
+		cconf5 |= RETUNING_TIMER_CNT_MAX;
+	}
+
+	if (mhost->caps & MMC_CAP_UHS_DDR50)
+		cconf4 |= ST_MMC_CCONFIG_DDR50;
+
+	writel_relaxed(cconf3, host->ioaddr + ST_MMC_CCONFIG_REG_3);
+	writel_relaxed(cconf4, host->ioaddr + ST_MMC_CCONFIG_REG_4);
+	writel_relaxed(cconf5, host->ioaddr + ST_MMC_CCONFIG_REG_5);
+}
+
+static inline void st_mmcss_set_dll(void __iomem *ioaddr)
+{
+	if (!ioaddr)
+		return;
+
+	writel_relaxed(ST_TOP_MMC_DYN_DLY_CONF,	ioaddr + ST_TOP_MMC_DLY_CTRL);
+	writel_relaxed(ST_TOP_MMC_TX_DLL_STEP_DLY_VALID,
+			ioaddr + ST_TOP_MMC_TX_DLL_STEP_DLY);
+}
+
+static int st_mmcss_lock_dll(void __iomem *ioaddr)
+{
+	unsigned long curr, value;
+	unsigned long finish = jiffies + HZ;
+
+	/* Checks if the DLL procedure is finished */
+	do {
+		curr = jiffies;
+		value = readl(ioaddr + ST_MMC_STATUS_R);
+		if (value & 0x1)
+			return 0;
+
+		cpu_relax();
+	} while (!time_after_eq(curr, finish));
+
+	return -EBUSY;
+}
+
+static int sdhci_st_set_dll_for_clock(struct sdhci_host *host)
+{
+	int ret = 0;
+	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
+	struct st_mmc_platform_data *pdata = pltfm_host->priv;
+
+	if (host->clock > CLK_TO_CHECK_DLL_LOCK) {
+		st_mmcss_set_dll(pdata->top_ioaddr);
+		ret = st_mmcss_lock_dll(host->ioaddr);
+	}
+
+	return ret;
+}
+
+static void sdhci_st_set_uhs_signaling(struct sdhci_host *host,
+					unsigned int uhs)
+{
+	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
+	struct st_mmc_platform_data *pdata = pltfm_host->priv;
+	u16 ctrl_2 = sdhci_readw(host, SDHCI_HOST_CONTROL2);
+	int ret = 0;
+
+	/* Select Bus Speed Mode for host */
+	ctrl_2 &= ~SDHCI_CTRL_UHS_MASK;
+	switch (uhs) {
+	/*
+	 * Set V18_EN -- UHS modes do not work without this.
+	 * does not change signaling voltage
+	 */
+
+	case MMC_TIMING_UHS_SDR12:
+		st_mmcss_set_static_delay(pdata->top_ioaddr);
+		ctrl_2 |= SDHCI_CTRL_UHS_SDR12 | SDHCI_CTRL_VDD_180;
+		break;
+	case MMC_TIMING_UHS_SDR25:
+		st_mmcss_set_static_delay(pdata->top_ioaddr);
+		ctrl_2 |= SDHCI_CTRL_UHS_SDR25 | SDHCI_CTRL_VDD_180;
+		break;
+	case MMC_TIMING_UHS_SDR50:
+		st_mmcss_set_static_delay(pdata->top_ioaddr);
+		ctrl_2 |= SDHCI_CTRL_UHS_SDR50 | SDHCI_CTRL_VDD_180;
+		ret = sdhci_st_set_dll_for_clock(host);
+		break;
+	case MMC_TIMING_UHS_SDR104:
+	case MMC_TIMING_MMC_HS200:
+		st_mmcss_set_static_delay(pdata->top_ioaddr);
+		ctrl_2 |= SDHCI_CTRL_UHS_SDR104 | SDHCI_CTRL_VDD_180;
+		ret =  sdhci_st_set_dll_for_clock(host);
+		break;
+	case MMC_TIMING_UHS_DDR50:
+	case MMC_TIMING_MMC_DDR52:
+		st_mmcss_set_static_delay(pdata->top_ioaddr);
+		ctrl_2 |= SDHCI_CTRL_UHS_DDR50 | SDHCI_CTRL_VDD_180;
+		break;
+	}
+
+	if (ret)
+		dev_warn(mmc_dev(host->mmc), "Error setting dll for clock "
+						"(uhs %d)\n", uhs);
+
+	dev_dbg(mmc_dev(host->mmc), "uhs %d, ctrl_2 %04X\n", uhs, ctrl_2);
+
+	sdhci_writew(host, ctrl_2, SDHCI_HOST_CONTROL2);
+}
+
 static u32 sdhci_st_readl(struct sdhci_host *host, int reg)
 {
 	u32 ret;
@@ -48,22 +334,33 @@ static const struct sdhci_ops sdhci_st_ops = {
 	.set_bus_width = sdhci_set_bus_width,
 	.read_l = sdhci_st_readl,
 	.reset = sdhci_reset,
+	.set_uhs_signaling = sdhci_st_set_uhs_signaling,
 };
 
 static const struct sdhci_pltfm_data sdhci_st_pdata = {
 	.ops = &sdhci_st_ops,
 	.quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC |
-	    SDHCI_QUIRK_CAP_CLOCK_BASE_BROKEN,
+		SDHCI_QUIRK_CAP_CLOCK_BASE_BROKEN |
+		SDHCI_QUIRK_NO_HISPD_BIT,
+	.quirks2 = SDHCI_QUIRK2_PRESET_VALUE_BROKEN |
+		SDHCI_QUIRK2_STOP_WITH_TC,
 };
 
 
 static int sdhci_st_probe(struct platform_device *pdev)
 {
+	struct device_node *np = pdev->dev.of_node;
 	struct sdhci_host *host;
+	struct st_mmc_platform_data *pdata;
 	struct sdhci_pltfm_host *pltfm_host;
 	struct clk *clk;
 	int ret = 0;
 	u16 host_version;
+	struct resource *res;
+
+	pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
+	if (!pdata)
+		return -ENOMEM;
 
 	clk =  devm_clk_get(&pdev->dev, "mmc");
 	if (IS_ERR(clk)) {
@@ -71,10 +368,17 @@ static int sdhci_st_probe(struct platform_device *pdev)
 		return PTR_ERR(clk);
 	}
 
+	pdata->rstc = devm_reset_control_get(&pdev->dev, NULL);
+	if (IS_ERR(pdata->rstc))
+		pdata->rstc = NULL;
+	else
+		reset_control_deassert(pdata->rstc);
+
 	host = sdhci_pltfm_init(pdev, &sdhci_st_pdata, 0);
 	if (IS_ERR(host)) {
 		dev_err(&pdev->dev, "Failed sdhci_pltfm_init\n");
-		return PTR_ERR(host);
+		ret = PTR_ERR(host);
+		goto err_pltfm_init;
 	}
 
 	ret = mmc_of_parse(host->mmc);
@@ -85,9 +389,22 @@ static int sdhci_st_probe(struct platform_device *pdev)
 
 	clk_prepare_enable(clk);
 
+	/* Configure the FlashSS Top registers for setting eMMC TX/RX delay */
+	res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
+					   "top-mmc-delay");
+	pdata->top_ioaddr = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(pdata->top_ioaddr)) {
+		dev_warn(&pdev->dev, "FlashSS Top Dly registers not available");
+		pdata->top_ioaddr = NULL;
+	}
+
 	pltfm_host = sdhci_priv(host);
+	pltfm_host->priv = pdata;
 	pltfm_host->clk = clk;
 
+	/* Configure the Arasan HC inside the flashSS */
+	st_mmcss_cconfig(np, host);
+
 	ret = sdhci_add_host(host);
 	if (ret) {
 		dev_err(&pdev->dev, "Failed sdhci_add_host\n");
@@ -109,6 +426,9 @@ err_out:
 	clk_disable_unprepare(clk);
 err_of:
 	sdhci_pltfm_free(pdev);
+err_pltfm_init:
+	if (pdata->rstc)
+		reset_control_assert(pdata->rstc);
 
 	return ret;
 }
@@ -117,10 +437,15 @@ static int sdhci_st_remove(struct platform_device *pdev)
 {
 	struct sdhci_host *host = platform_get_drvdata(pdev);
 	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
+	struct st_mmc_platform_data *pdata = pltfm_host->priv;
+	int ret;
 
-	clk_disable_unprepare(pltfm_host->clk);
+	ret = sdhci_pltfm_unregister(pdev);
+
+	if (pdata->rstc)
+		reset_control_assert(pdata->rstc);
 
-	return sdhci_pltfm_unregister(pdev);
+	return ret;
 }
 
 #ifdef CONFIG_PM_SLEEP
@@ -128,11 +453,15 @@ static int sdhci_st_suspend(struct device *dev)
 {
 	struct sdhci_host *host = dev_get_drvdata(dev);
 	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
+	struct st_mmc_platform_data *pdata = pltfm_host->priv;
 	int ret = sdhci_suspend_host(host);
 
 	if (ret)
 		goto out;
 
+	if (pdata->rstc)
+		reset_control_assert(pdata->rstc);
+
 	clk_disable_unprepare(pltfm_host->clk);
 out:
 	return ret;
@@ -142,9 +471,16 @@ static int sdhci_st_resume(struct device *dev)
 {
 	struct sdhci_host *host = dev_get_drvdata(dev);
 	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
+	struct st_mmc_platform_data *pdata = pltfm_host->priv;
+	struct device_node *np = dev->of_node;
 
 	clk_prepare_enable(pltfm_host->clk);
 
+	if (pdata->rstc)
+		reset_control_deassert(pdata->rstc);
+
+	st_mmcss_cconfig(np, host);
+
 	return sdhci_resume_host(host);
 }
 #endif
diff --git a/drivers/mmc/host/sdhci-tegra.c b/drivers/mmc/host/sdhci-tegra.c
index f3778d5..ad28b49 100644
--- a/drivers/mmc/host/sdhci-tegra.c
+++ b/drivers/mmc/host/sdhci-tegra.c
@@ -20,11 +20,10 @@
 #include <linux/io.h>
 #include <linux/of.h>
 #include <linux/of_device.h>
-#include <linux/of_gpio.h>
-#include <linux/gpio.h>
 #include <linux/mmc/card.h>
 #include <linux/mmc/host.h>
 #include <linux/mmc/slot-gpio.h>
+#include <linux/gpio/consumer.h>
 
 #include "sdhci-pltfm.h"
 
@@ -41,7 +40,6 @@
 #define NVQUIRK_DISABLE_SDR50		BIT(3)
 #define NVQUIRK_DISABLE_SDR104		BIT(4)
 #define NVQUIRK_DISABLE_DDR50		BIT(5)
-#define NVQUIRK_SHADOW_XFER_MODE_REG	BIT(6)
 
 struct sdhci_tegra_soc_data {
 	const struct sdhci_pltfm_data *pdata;
@@ -50,7 +48,7 @@ struct sdhci_tegra_soc_data {
 
 struct sdhci_tegra {
 	const struct sdhci_tegra_soc_data *soc_data;
-	int power_gpio;
+	struct gpio_desc *power_gpio;
 };
 
 static u16 tegra_sdhci_readw(struct sdhci_host *host, int reg)
@@ -71,23 +69,19 @@ static u16 tegra_sdhci_readw(struct sdhci_host *host, int reg)
 static void tegra_sdhci_writew(struct sdhci_host *host, u16 val, int reg)
 {
 	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
-	struct sdhci_tegra *tegra_host = pltfm_host->priv;
-	const struct sdhci_tegra_soc_data *soc_data = tegra_host->soc_data;
 
-	if (soc_data->nvquirks & NVQUIRK_SHADOW_XFER_MODE_REG) {
-		switch (reg) {
-		case SDHCI_TRANSFER_MODE:
-			/*
-			 * Postpone this write, we must do it together with a
-			 * command write that is down below.
-			 */
-			pltfm_host->xfer_mode_shadow = val;
-			return;
-		case SDHCI_COMMAND:
-			writel((val << 16) | pltfm_host->xfer_mode_shadow,
-				host->ioaddr + SDHCI_TRANSFER_MODE);
-			return;
-		}
+	switch (reg) {
+	case SDHCI_TRANSFER_MODE:
+		/*
+		 * Postpone this write, we must do it together with a
+		 * command write that is down below.
+		 */
+		pltfm_host->xfer_mode_shadow = val;
+		return;
+	case SDHCI_COMMAND:
+		writel((val << 16) | pltfm_host->xfer_mode_shadow,
+			host->ioaddr + SDHCI_TRANSFER_MODE);
+		return;
 	}
 
 	writew(val, host->ioaddr + reg);
@@ -173,7 +167,6 @@ static void tegra_sdhci_set_bus_width(struct sdhci_host *host, int bus_width)
 static const struct sdhci_ops tegra_sdhci_ops = {
 	.get_ro     = tegra_sdhci_get_ro,
 	.read_w     = tegra_sdhci_readw,
-	.write_w    = tegra_sdhci_writew,
 	.write_l    = tegra_sdhci_writel,
 	.set_clock  = sdhci_set_clock,
 	.set_bus_width = tegra_sdhci_set_bus_width,
@@ -214,6 +207,18 @@ static struct sdhci_tegra_soc_data soc_data_tegra30 = {
 		    NVQUIRK_DISABLE_SDR104,
 };
 
+static const struct sdhci_ops tegra114_sdhci_ops = {
+	.get_ro     = tegra_sdhci_get_ro,
+	.read_w     = tegra_sdhci_readw,
+	.write_w    = tegra_sdhci_writew,
+	.write_l    = tegra_sdhci_writel,
+	.set_clock  = sdhci_set_clock,
+	.set_bus_width = tegra_sdhci_set_bus_width,
+	.reset      = tegra_sdhci_reset,
+	.set_uhs_signaling = sdhci_set_uhs_signaling,
+	.get_max_clock = sdhci_pltfm_clk_get_max_clock,
+};
+
 static const struct sdhci_pltfm_data sdhci_tegra114_pdata = {
 	.quirks = SDHCI_QUIRK_BROKEN_TIMEOUT_VAL |
 		  SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK |
@@ -221,15 +226,14 @@ static const struct sdhci_pltfm_data sdhci_tegra114_pdata = {
 		  SDHCI_QUIRK_NO_HISPD_BIT |
 		  SDHCI_QUIRK_BROKEN_ADMA_ZEROLEN_DESC |
 		  SDHCI_QUIRK_CAP_CLOCK_BASE_BROKEN,
-	.ops  = &tegra_sdhci_ops,
+	.ops  = &tegra114_sdhci_ops,
 };
 
 static struct sdhci_tegra_soc_data soc_data_tegra114 = {
 	.pdata = &sdhci_tegra114_pdata,
 	.nvquirks = NVQUIRK_DISABLE_SDR50 |
 		    NVQUIRK_DISABLE_DDR50 |
-		    NVQUIRK_DISABLE_SDR104 |
-		    NVQUIRK_SHADOW_XFER_MODE_REG,
+		    NVQUIRK_DISABLE_SDR104,
 };
 
 static const struct of_device_id sdhci_tegra_dt_match[] = {
@@ -241,17 +245,6 @@ static const struct of_device_id sdhci_tegra_dt_match[] = {
 };
 MODULE_DEVICE_TABLE(of, sdhci_tegra_dt_match);
 
-static int sdhci_tegra_parse_dt(struct device *dev)
-{
-	struct device_node *np = dev->of_node;
-	struct sdhci_host *host = dev_get_drvdata(dev);
-	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
-	struct sdhci_tegra *tegra_host = pltfm_host->priv;
-
-	tegra_host->power_gpio = of_get_named_gpio(np, "power-gpios", 0);
-	return mmc_of_parse(host->mmc);
-}
-
 static int sdhci_tegra_probe(struct platform_device *pdev)
 {
 	const struct of_device_id *match;
@@ -281,21 +274,18 @@ static int sdhci_tegra_probe(struct platform_device *pdev)
 	tegra_host->soc_data = soc_data;
 	pltfm_host->priv = tegra_host;
 
-	rc = sdhci_tegra_parse_dt(&pdev->dev);
+	rc = mmc_of_parse(host->mmc);
 	if (rc)
 		goto err_parse_dt;
 
-	if (gpio_is_valid(tegra_host->power_gpio)) {
-		rc = gpio_request(tegra_host->power_gpio, "sdhci_power");
-		if (rc) {
-			dev_err(mmc_dev(host->mmc),
-				"failed to allocate power gpio\n");
-			goto err_power_req;
-		}
-		gpio_direction_output(tegra_host->power_gpio, 1);
+	tegra_host->power_gpio = devm_gpiod_get_optional(&pdev->dev, "power",
+							 GPIOD_OUT_HIGH);
+	if (IS_ERR(tegra_host->power_gpio)) {
+		rc = PTR_ERR(tegra_host->power_gpio);
+		goto err_power_req;
 	}
 
-	clk = clk_get(mmc_dev(host->mmc), NULL);
+	clk = devm_clk_get(mmc_dev(host->mmc), NULL);
 	if (IS_ERR(clk)) {
 		dev_err(mmc_dev(host->mmc), "clk err\n");
 		rc = PTR_ERR(clk);
@@ -312,10 +302,7 @@ static int sdhci_tegra_probe(struct platform_device *pdev)
 
 err_add_host:
 	clk_disable_unprepare(pltfm_host->clk);
-	clk_put(pltfm_host->clk);
 err_clk_get:
-	if (gpio_is_valid(tegra_host->power_gpio))
-		gpio_free(tegra_host->power_gpio);
 err_power_req:
 err_parse_dt:
 err_alloc_tegra_host:
@@ -323,26 +310,6 @@ err_alloc_tegra_host:
 	return rc;
 }
 
-static int sdhci_tegra_remove(struct platform_device *pdev)
-{
-	struct sdhci_host *host = platform_get_drvdata(pdev);
-	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
-	struct sdhci_tegra *tegra_host = pltfm_host->priv;
-	int dead = (readl(host->ioaddr + SDHCI_INT_STATUS) == 0xffffffff);
-
-	sdhci_remove_host(host, dead);
-
-	if (gpio_is_valid(tegra_host->power_gpio))
-		gpio_free(tegra_host->power_gpio);
-
-	clk_disable_unprepare(pltfm_host->clk);
-	clk_put(pltfm_host->clk);
-
-	sdhci_pltfm_free(pdev);
-
-	return 0;
-}
-
 static struct platform_driver sdhci_tegra_driver = {
 	.driver		= {
 		.name	= "sdhci-tegra",
@@ -350,7 +317,7 @@ static struct platform_driver sdhci_tegra_driver = {
 		.pm	= SDHCI_PLTFM_PMOPS,
 	},
 	.probe		= sdhci_tegra_probe,
-	.remove		= sdhci_tegra_remove,
+	.remove		= sdhci_pltfm_unregister,
 };
 
 module_platform_driver(sdhci_tegra_driver);
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 0ad412a..c80287a 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -28,6 +28,7 @@
 #include <linux/mmc/mmc.h>
 #include <linux/mmc/host.h>
 #include <linux/mmc/card.h>
+#include <linux/mmc/sdio.h>
 #include <linux/mmc/slot-gpio.h>
 
 #include "sdhci.h"
@@ -56,6 +57,7 @@ static void sdhci_enable_preset_value(struct sdhci_host *host, bool enable);
 static int sdhci_pre_dma_transfer(struct sdhci_host *host,
 					struct mmc_data *data,
 					struct sdhci_host_next *next);
+static int sdhci_do_get_cd(struct sdhci_host *host);
 
 #ifdef CONFIG_PM
 static int sdhci_runtime_pm_get(struct sdhci_host *host);
@@ -931,7 +933,8 @@ static void sdhci_set_transfer_mode(struct sdhci_host *host,
 		 * If we are sending CMD23, CMD12 never gets sent
 		 * on successful completion (so no Auto-CMD12).
 		 */
-		if (!host->mrq->sbc && (host->flags & SDHCI_AUTO_CMD12))
+		if (!host->mrq->sbc && (host->flags & SDHCI_AUTO_CMD12) &&
+		    (cmd->opcode != SD_IO_RW_EXTENDED))
 			mode |= SDHCI_TRNS_AUTO_CMD12;
 		else if (host->mrq->sbc && (host->flags & SDHCI_AUTO_CMD23)) {
 			mode |= SDHCI_TRNS_AUTO_CMD23;
@@ -1356,7 +1359,8 @@ static void sdhci_request(struct mmc_host *mmc, struct mmc_request *mrq)
 
 	sdhci_runtime_pm_get(host);
 
-	present = mmc_gpio_get_cd(host->mmc);
+	/* Firstly check card presence */
+	present = sdhci_do_get_cd(host);
 
 	spin_lock_irqsave(&host->lock, flags);
 
@@ -1379,22 +1383,6 @@ static void sdhci_request(struct mmc_host *mmc, struct mmc_request *mrq)
 
 	host->mrq = mrq;
 
-	/*
-	 * Firstly check card presence from cd-gpio.  The return could
-	 * be one of the following possibilities:
-	 *     negative: cd-gpio is not available
-	 *     zero: cd-gpio is used, and card is removed
-	 *     one: cd-gpio is used, and card is present
-	 */
-	if (present < 0) {
-		/* If polling, assume that the card is always present. */
-		if (host->quirks & SDHCI_QUIRK_BROKEN_CARD_DETECTION)
-			present = 1;
-		else
-			present = sdhci_readl(host, SDHCI_PRESENT_STATE) &
-					SDHCI_CARD_PRESENT;
-	}
-
 	if (!present || host->flags & SDHCI_DEVICE_DEAD) {
 		host->mrq->cmd->error = -ENOMEDIUM;
 		tasklet_schedule(&host->finish_tasklet);
@@ -3164,7 +3152,8 @@ int sdhci_add_host(struct sdhci_host *host)
 	/* Auto-CMD23 stuff only works in ADMA or PIO. */
 	if ((host->version >= SDHCI_SPEC_300) &&
 	    ((host->flags & SDHCI_USE_ADMA) ||
-	     !(host->flags & SDHCI_USE_SDMA))) {
+	     !(host->flags & SDHCI_USE_SDMA)) &&
+	     !(host->quirks2 & SDHCI_QUIRK2_ACMD23_BROKEN)) {
 		host->flags |= SDHCI_AUTO_CMD23;
 		DBG("%s: Auto-CMD23 available\n", mmc_hostname(mmc));
 	} else {
diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h
index 0315e18..e639b7f 100644
--- a/drivers/mmc/host/sdhci.h
+++ b/drivers/mmc/host/sdhci.h
@@ -18,7 +18,7 @@
 #include <linux/types.h>
 #include <linux/io.h>
 
-#include <linux/mmc/sdhci.h>
+#include <linux/mmc/host.h>
 
 /*
  * Controller registers
@@ -309,6 +309,207 @@ struct sdhci_adma2_64_desc {
  */
 #define SDHCI_MAX_SEGS		128
 
+struct sdhci_host_next {
+	unsigned int	sg_count;
+	s32		cookie;
+};
+
+struct sdhci_host {
+	/* Data set by hardware interface driver */
+	const char *hw_name;	/* Hardware bus name */
+
+	unsigned int quirks;	/* Deviations from spec. */
+
+/* Controller doesn't honor resets unless we touch the clock register */
+#define SDHCI_QUIRK_CLOCK_BEFORE_RESET			(1<<0)
+/* Controller has bad caps bits, but really supports DMA */
+#define SDHCI_QUIRK_FORCE_DMA				(1<<1)
+/* Controller doesn't like to be reset when there is no card inserted. */
+#define SDHCI_QUIRK_NO_CARD_NO_RESET			(1<<2)
+/* Controller doesn't like clearing the power reg before a change */
+#define SDHCI_QUIRK_SINGLE_POWER_WRITE			(1<<3)
+/* Controller has flaky internal state so reset it on each ios change */
+#define SDHCI_QUIRK_RESET_CMD_DATA_ON_IOS		(1<<4)
+/* Controller has an unusable DMA engine */
+#define SDHCI_QUIRK_BROKEN_DMA				(1<<5)
+/* Controller has an unusable ADMA engine */
+#define SDHCI_QUIRK_BROKEN_ADMA				(1<<6)
+/* Controller can only DMA from 32-bit aligned addresses */
+#define SDHCI_QUIRK_32BIT_DMA_ADDR			(1<<7)
+/* Controller can only DMA chunk sizes that are a multiple of 32 bits */
+#define SDHCI_QUIRK_32BIT_DMA_SIZE			(1<<8)
+/* Controller can only ADMA chunks that are a multiple of 32 bits */
+#define SDHCI_QUIRK_32BIT_ADMA_SIZE			(1<<9)
+/* Controller needs to be reset after each request to stay stable */
+#define SDHCI_QUIRK_RESET_AFTER_REQUEST			(1<<10)
+/* Controller needs voltage and power writes to happen separately */
+#define SDHCI_QUIRK_NO_SIMULT_VDD_AND_POWER		(1<<11)
+/* Controller provides an incorrect timeout value for transfers */
+#define SDHCI_QUIRK_BROKEN_TIMEOUT_VAL			(1<<12)
+/* Controller has an issue with buffer bits for small transfers */
+#define SDHCI_QUIRK_BROKEN_SMALL_PIO			(1<<13)
+/* Controller does not provide transfer-complete interrupt when not busy */
+#define SDHCI_QUIRK_NO_BUSY_IRQ				(1<<14)
+/* Controller has unreliable card detection */
+#define SDHCI_QUIRK_BROKEN_CARD_DETECTION		(1<<15)
+/* Controller reports inverted write-protect state */
+#define SDHCI_QUIRK_INVERTED_WRITE_PROTECT		(1<<16)
+/* Controller does not like fast PIO transfers */
+#define SDHCI_QUIRK_PIO_NEEDS_DELAY			(1<<18)
+/* Controller has to be forced to use block size of 2048 bytes */
+#define SDHCI_QUIRK_FORCE_BLK_SZ_2048			(1<<20)
+/* Controller cannot do multi-block transfers */
+#define SDHCI_QUIRK_NO_MULTIBLOCK			(1<<21)
+/* Controller can only handle 1-bit data transfers */
+#define SDHCI_QUIRK_FORCE_1_BIT_DATA			(1<<22)
+/* Controller needs 10ms delay between applying power and clock */
+#define SDHCI_QUIRK_DELAY_AFTER_POWER			(1<<23)
+/* Controller uses SDCLK instead of TMCLK for data timeouts */
+#define SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK		(1<<24)
+/* Controller reports wrong base clock capability */
+#define SDHCI_QUIRK_CAP_CLOCK_BASE_BROKEN		(1<<25)
+/* Controller cannot support End Attribute in NOP ADMA descriptor */
+#define SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC		(1<<26)
+/* Controller is missing device caps. Use caps provided by host */
+#define SDHCI_QUIRK_MISSING_CAPS			(1<<27)
+/* Controller uses Auto CMD12 command to stop the transfer */
+#define SDHCI_QUIRK_MULTIBLOCK_READ_ACMD12		(1<<28)
+/* Controller doesn't have HISPD bit field in HI-SPEED SD card */
+#define SDHCI_QUIRK_NO_HISPD_BIT			(1<<29)
+/* Controller treats ADMA descriptors with length 0000h incorrectly */
+#define SDHCI_QUIRK_BROKEN_ADMA_ZEROLEN_DESC		(1<<30)
+/* The read-only detection via SDHCI_PRESENT_STATE register is unstable */
+#define SDHCI_QUIRK_UNSTABLE_RO_DETECT			(1<<31)
+
+	unsigned int quirks2;	/* More deviations from spec. */
+
+#define SDHCI_QUIRK2_HOST_OFF_CARD_ON			(1<<0)
+#define SDHCI_QUIRK2_HOST_NO_CMD23			(1<<1)
+/* The system physically doesn't support 1.8v, even if the host does */
+#define SDHCI_QUIRK2_NO_1_8_V				(1<<2)
+#define SDHCI_QUIRK2_PRESET_VALUE_BROKEN		(1<<3)
+#define SDHCI_QUIRK2_CARD_ON_NEEDS_BUS_ON		(1<<4)
+/* Controller has a non-standard host control register */
+#define SDHCI_QUIRK2_BROKEN_HOST_CONTROL		(1<<5)
+/* Controller does not support HS200 */
+#define SDHCI_QUIRK2_BROKEN_HS200			(1<<6)
+/* Controller does not support DDR50 */
+#define SDHCI_QUIRK2_BROKEN_DDR50			(1<<7)
+/* Stop command (CMD12) can set Transfer Complete when not using MMC_RSP_BUSY */
+#define SDHCI_QUIRK2_STOP_WITH_TC			(1<<8)
+/* Controller does not support 64-bit DMA */
+#define SDHCI_QUIRK2_BROKEN_64_BIT_DMA			(1<<9)
+/* need clear transfer mode register before send cmd */
+#define SDHCI_QUIRK2_CLEAR_TRANSFERMODE_REG_BEFORE_CMD	(1<<10)
+/* Capability register bit-63 indicates HS400 support */
+#define SDHCI_QUIRK2_CAPS_BIT63_FOR_HS400		(1<<11)
+/* forced tuned clock */
+#define SDHCI_QUIRK2_TUNING_WORK_AROUND			(1<<12)
+/* disable the block count for single block transactions */
+#define SDHCI_QUIRK2_SUPPORT_SINGLE			(1<<13)
+/* Controller broken with using ACMD23 */
+#define SDHCI_QUIRK2_ACMD23_BROKEN			(1<<14)
+
+	int irq;		/* Device IRQ */
+	void __iomem *ioaddr;	/* Mapped address */
+
+	const struct sdhci_ops *ops;	/* Low level hw interface */
+
+	/* Internal data */
+	struct mmc_host *mmc;	/* MMC structure */
+	u64 dma_mask;		/* custom DMA mask */
+
+#if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE)
+	struct led_classdev led;	/* LED control */
+	char led_name[32];
+#endif
+
+	spinlock_t lock;	/* Mutex */
+
+	int flags;		/* Host attributes */
+#define SDHCI_USE_SDMA		(1<<0)	/* Host is SDMA capable */
+#define SDHCI_USE_ADMA		(1<<1)	/* Host is ADMA capable */
+#define SDHCI_REQ_USE_DMA	(1<<2)	/* Use DMA for this req. */
+#define SDHCI_DEVICE_DEAD	(1<<3)	/* Device unresponsive */
+#define SDHCI_SDR50_NEEDS_TUNING (1<<4)	/* SDR50 needs tuning */
+#define SDHCI_NEEDS_RETUNING	(1<<5)	/* Host needs retuning */
+#define SDHCI_AUTO_CMD12	(1<<6)	/* Auto CMD12 support */
+#define SDHCI_AUTO_CMD23	(1<<7)	/* Auto CMD23 support */
+#define SDHCI_PV_ENABLED	(1<<8)	/* Preset value enabled */
+#define SDHCI_SDIO_IRQ_ENABLED	(1<<9)	/* SDIO irq enabled */
+#define SDHCI_SDR104_NEEDS_TUNING (1<<10)	/* SDR104/HS200 needs tuning */
+#define SDHCI_USING_RETUNING_TIMER (1<<11)	/* Host is using a retuning timer for the card */
+#define SDHCI_USE_64_BIT_DMA	(1<<12)	/* Use 64-bit DMA */
+#define SDHCI_HS400_TUNING	(1<<13)	/* Tuning for HS400 */
+
+	unsigned int version;	/* SDHCI spec. version */
+
+	unsigned int max_clk;	/* Max possible freq (MHz) */
+	unsigned int timeout_clk;	/* Timeout freq (KHz) */
+	unsigned int clk_mul;	/* Clock Muliplier value */
+
+	unsigned int clock;	/* Current clock (MHz) */
+	u8 pwr;			/* Current voltage */
+
+	bool runtime_suspended;	/* Host is runtime suspended */
+	bool bus_on;		/* Bus power prevents runtime suspend */
+	bool preset_enabled;	/* Preset is enabled */
+
+	struct mmc_request *mrq;	/* Current request */
+	struct mmc_command *cmd;	/* Current command */
+	struct mmc_data *data;	/* Current data request */
+	unsigned int data_early:1;	/* Data finished before cmd */
+	unsigned int busy_handle:1;	/* Handling the order of Busy-end */
+
+	struct sg_mapping_iter sg_miter;	/* SG state for PIO */
+	unsigned int blocks;	/* remaining PIO blocks */
+
+	int sg_count;		/* Mapped sg entries */
+
+	void *adma_table;	/* ADMA descriptor table */
+	void *align_buffer;	/* Bounce buffer */
+
+	size_t adma_table_sz;	/* ADMA descriptor table size */
+	size_t align_buffer_sz;	/* Bounce buffer size */
+
+	dma_addr_t adma_addr;	/* Mapped ADMA descr. table */
+	dma_addr_t align_addr;	/* Mapped bounce buffer */
+
+	unsigned int desc_sz;	/* ADMA descriptor size */
+	unsigned int align_sz;	/* ADMA alignment */
+	unsigned int align_mask;	/* ADMA alignment mask */
+
+	struct tasklet_struct finish_tasklet;	/* Tasklet structures */
+
+	struct timer_list timer;	/* Timer for timeouts */
+
+	u32 caps;		/* Alternative CAPABILITY_0 */
+	u32 caps1;		/* Alternative CAPABILITY_1 */
+
+	unsigned int            ocr_avail_sdio;	/* OCR bit masks */
+	unsigned int            ocr_avail_sd;
+	unsigned int            ocr_avail_mmc;
+	u32 ocr_mask;		/* available voltages */
+
+	unsigned		timing;		/* Current timing */
+
+	u32			thread_isr;
+
+	/* cached registers */
+	u32			ier;
+
+	wait_queue_head_t	buf_ready_int;	/* Waitqueue for Buffer Read Ready interrupt */
+	unsigned int		tuning_done;	/* Condition flag set when CMD19 succeeds */
+
+	unsigned int		tuning_count;	/* Timer count for re-tuning */
+	unsigned int		tuning_mode;	/* Re-tuning mode supported by host */
+#define SDHCI_TUNING_MODE_1	0
+	struct timer_list	tuning_timer;	/* Timer for tuning */
+
+	struct sdhci_host_next	next_data;
+	unsigned long private[0] ____cacheline_aligned;
+};
+
 struct sdhci_ops {
 #ifdef CONFIG_MMC_SDHCI_IO_ACCESSORS
 	u32		(*read_l)(struct sdhci_host *host, int reg);
diff --git a/drivers/mmc/host/sh_mmcif.c b/drivers/mmc/host/sh_mmcif.c
index 7d9d6a3..072f670 100644
--- a/drivers/mmc/host/sh_mmcif.c
+++ b/drivers/mmc/host/sh_mmcif.c
@@ -875,6 +875,7 @@ static void sh_mmcif_start_cmd(struct sh_mmcif_host *host,
 	struct mmc_command *cmd = mrq->cmd;
 	u32 opc = cmd->opcode;
 	u32 mask;
+	unsigned long flags;
 
 	switch (opc) {
 	/* response busy check */
@@ -909,10 +910,12 @@ static void sh_mmcif_start_cmd(struct sh_mmcif_host *host,
 	/* set arg */
 	sh_mmcif_writel(host->addr, MMCIF_CE_ARG, cmd->arg);
 	/* set cmd */
+	spin_lock_irqsave(&host->lock, flags);
 	sh_mmcif_writel(host->addr, MMCIF_CE_CMD_SET, opc);
 
 	host->wait_for = MMCIF_WAIT_FOR_CMD;
 	schedule_delayed_work(&host->timeout_work, host->timeout);
+	spin_unlock_irqrestore(&host->lock, flags);
 }
 
 static void sh_mmcif_stop_cmd(struct sh_mmcif_host *host,
@@ -1171,6 +1174,12 @@ static irqreturn_t sh_mmcif_irqt(int irq, void *dev_id)
 	struct sh_mmcif_host *host = dev_id;
 	struct mmc_request *mrq;
 	bool wait = false;
+	unsigned long flags;
+	int wait_work;
+
+	spin_lock_irqsave(&host->lock, flags);
+	wait_work = host->wait_for;
+	spin_unlock_irqrestore(&host->lock, flags);
 
 	cancel_delayed_work_sync(&host->timeout_work);
 
@@ -1188,7 +1197,7 @@ static irqreturn_t sh_mmcif_irqt(int irq, void *dev_id)
 	 * All handlers return true, if processing continues, and false, if the
 	 * request has to be completed - successfully or not
 	 */
-	switch (host->wait_for) {
+	switch (wait_work) {
 	case MMCIF_WAIT_FOR_REQUEST:
 		/* We're too late, the timeout has already kicked in */
 		mutex_unlock(&host->thread_lock);
@@ -1312,15 +1321,15 @@ static void mmcif_timeout_work(struct work_struct *work)
 		/* Don't run after mmc_remove_host() */
 		return;
 
-	dev_err(&host->pd->dev, "Timeout waiting for %u on CMD%u\n",
-		host->wait_for, mrq->cmd->opcode);
-
 	spin_lock_irqsave(&host->lock, flags);
 	if (host->state == STATE_IDLE) {
 		spin_unlock_irqrestore(&host->lock, flags);
 		return;
 	}
 
+	dev_err(&host->pd->dev, "Timeout waiting for %u on CMD%u\n",
+		host->wait_for, mrq->cmd->opcode);
+
 	host->state = STATE_TIMEOUT;
 	spin_unlock_irqrestore(&host->lock, flags);
 
diff --git a/drivers/mmc/host/sunxi-mmc.c b/drivers/mmc/host/sunxi-mmc.c
index e8a4218..4d3e1ff 100644
--- a/drivers/mmc/host/sunxi-mmc.c
+++ b/drivers/mmc/host/sunxi-mmc.c
@@ -293,7 +293,7 @@ static void sunxi_mmc_init_idma_des(struct sunxi_mmc_host *host,
 				    struct mmc_data *data)
 {
 	struct sunxi_idma_des *pdes = (struct sunxi_idma_des *)host->sg_cpu;
-	struct sunxi_idma_des *pdes_pa = (struct sunxi_idma_des *)host->sg_dma;
+	dma_addr_t next_desc = host->sg_dma;
 	int i, max_len = (1 << host->idma_des_size_bits);
 
 	for (i = 0; i < data->sg_len; i++) {
@@ -305,8 +305,9 @@ static void sunxi_mmc_init_idma_des(struct sunxi_mmc_host *host,
 		else
 			pdes[i].buf_size = data->sg[i].length;
 
+		next_desc += sizeof(struct sunxi_idma_des);
 		pdes[i].buf_addr_ptr1 = sg_dma_address(&data->sg[i]);
-		pdes[i].buf_addr_ptr2 = (u32)&pdes_pa[i + 1];
+		pdes[i].buf_addr_ptr2 = (u32)next_desc;
 	}
 
 	pdes[0].config |= SDXC_IDMAC_DES0_FD;
@@ -930,7 +931,9 @@ static int sunxi_mmc_resource_request(struct sunxi_mmc_host *host,
 		return PTR_ERR(host->clk_sample);
 	}
 
-	host->reset = devm_reset_control_get(&pdev->dev, "ahb");
+	host->reset = devm_reset_control_get_optional(&pdev->dev, "ahb");
+	if (PTR_ERR(host->reset) == -EPROBE_DEFER)
+		return PTR_ERR(host->reset);
 
 	ret = clk_prepare_enable(host->clk_ahb);
 	if (ret) {
@@ -1028,7 +1031,7 @@ static int sunxi_mmc_probe(struct platform_device *pdev)
 	mmc->f_min		=   400000;
 	mmc->f_max		= 50000000;
 	mmc->caps	       |= MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED |
-				  MMC_CAP_ERASE;
+				  MMC_CAP_ERASE | MMC_CAP_SDIO_IRQ;
 
 	ret = mmc_of_parse(mmc);
 	if (ret)
diff --git a/drivers/mmc/host/tmio_mmc_pio.c b/drivers/mmc/host/tmio_mmc_pio.c
index a31c357..dba7e1c 100644
--- a/drivers/mmc/host/tmio_mmc_pio.c
+++ b/drivers/mmc/host/tmio_mmc_pio.c
@@ -1073,8 +1073,6 @@ EXPORT_SYMBOL(tmio_mmc_host_alloc);
 void tmio_mmc_host_free(struct tmio_mmc_host *host)
 {
 	mmc_free_host(host->mmc);
-
-	host->mmc = NULL;
 }
 EXPORT_SYMBOL(tmio_mmc_host_free);
 
diff --git a/drivers/mmc/host/wmt-sdmmc.c b/drivers/mmc/host/wmt-sdmmc.c
index dd2e1aa..5af0055 100644
--- a/drivers/mmc/host/wmt-sdmmc.c
+++ b/drivers/mmc/host/wmt-sdmmc.c
@@ -744,7 +744,7 @@ static struct wmt_mci_caps wm8505_caps = {
 	.max_blk_size = 2048,
 };
 
-static struct of_device_id wmt_mci_dt_ids[] = {
+static const struct of_device_id wmt_mci_dt_ids[] = {
 	{ .compatible = "wm,wm8505-sdhc", .data = &wm8505_caps },
 	{ /* Sentinel */ },
 };
diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig
index 5b76a17..5897d8d 100644
--- a/drivers/mtd/nand/Kconfig
+++ b/drivers/mtd/nand/Kconfig
@@ -526,6 +526,7 @@ config MTD_NAND_SUNXI
 
 config MTD_NAND_HISI504
 	tristate "Support for NAND controller on Hisilicon SoC Hip04"
+	depends on HAS_DMA
 	help
 	  Enables support for NAND controller on Hisilicon SoC Hip04.
 
diff --git a/drivers/mtd/nand/hisi504_nand.c b/drivers/mtd/nand/hisi504_nand.c
index 289ad3a..8dcc7b8 100644
--- a/drivers/mtd/nand/hisi504_nand.c
+++ b/drivers/mtd/nand/hisi504_nand.c
@@ -758,8 +758,7 @@ static int hisi_nfc_probe(struct platform_device *pdev)
 
 	hisi_nfc_host_init(host);
 
-	ret = devm_request_irq(dev, irq, hinfc_irq_handle, IRQF_DISABLED,
-				"nandc", host);
+	ret = devm_request_irq(dev, irq, hinfc_irq_handle, 0x0, "nandc", host);
 	if (ret) {
 		dev_err(dev, "failed to request IRQ\n");
 		goto err_res;
diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c
index 96b0b1d..10b1f7a 100644
--- a/drivers/mtd/nand/pxa3xx_nand.c
+++ b/drivers/mtd/nand/pxa3xx_nand.c
@@ -480,6 +480,42 @@ static void disable_int(struct pxa3xx_nand_info *info, uint32_t int_mask)
 	nand_writel(info, NDCR, ndcr | int_mask);
 }
 
+static void drain_fifo(struct pxa3xx_nand_info *info, void *data, int len)
+{
+	if (info->ecc_bch) {
+		int timeout;
+
+		/*
+		 * According to the datasheet, when reading from NDDB
+		 * with BCH enabled, after each 32 bytes reads, we
+		 * have to make sure that the NDSR.RDDREQ bit is set.
+		 *
+		 * Drain the FIFO 8 32 bits reads at a time, and skip
+		 * the polling on the last read.
+		 */
+		while (len > 8) {
+			__raw_readsl(info->mmio_base + NDDB, data, 8);
+
+			for (timeout = 0;
+			     !(nand_readl(info, NDSR) & NDSR_RDDREQ);
+			     timeout++) {
+				if (timeout >= 5) {
+					dev_err(&info->pdev->dev,
+						"Timeout on RDDREQ while draining the FIFO\n");
+					return;
+				}
+
+				mdelay(1);
+			}
+
+			data += 32;
+			len -= 8;
+		}
+	}
+
+	__raw_readsl(info->mmio_base + NDDB, data, len);
+}
+
 static void handle_data_pio(struct pxa3xx_nand_info *info)
 {
 	unsigned int do_bytes = min(info->data_size, info->chunk_size);
@@ -496,14 +532,14 @@ static void handle_data_pio(struct pxa3xx_nand_info *info)
 				      DIV_ROUND_UP(info->oob_size, 4));
 		break;
 	case STATE_PIO_READING:
-		__raw_readsl(info->mmio_base + NDDB,
-			     info->data_buff + info->data_buff_pos,
-			     DIV_ROUND_UP(do_bytes, 4));
+		drain_fifo(info,
+			   info->data_buff + info->data_buff_pos,
+			   DIV_ROUND_UP(do_bytes, 4));
 
 		if (info->oob_size > 0)
-			__raw_readsl(info->mmio_base + NDDB,
-				     info->oob_buff + info->oob_buff_pos,
-				     DIV_ROUND_UP(info->oob_size, 4));
+			drain_fifo(info,
+				   info->oob_buff + info->oob_buff_pos,
+				   DIV_ROUND_UP(info->oob_size, 4));
 		break;
 	default:
 		dev_err(&info->pdev->dev, "%s: invalid state %d\n", __func__,
@@ -1572,6 +1608,8 @@ static int alloc_nand_resource(struct platform_device *pdev)
 	int ret, irq, cs;
 
 	pdata = dev_get_platdata(&pdev->dev);
+	if (pdata->num_cs <= 0)
+		return -ENODEV;
 	info = devm_kzalloc(&pdev->dev, sizeof(*info) + (sizeof(*mtd) +
 			    sizeof(*host)) * pdata->num_cs, GFP_KERNEL);
 	if (!info)
diff --git a/drivers/mtd/ubi/eba.c b/drivers/mtd/ubi/eba.c
index da4c792..16e34b3 100644
--- a/drivers/mtd/ubi/eba.c
+++ b/drivers/mtd/ubi/eba.c
@@ -425,9 +425,10 @@ retry:
 					ubi_warn(ubi, "corrupted VID header at PEB %d, LEB %d:%d",
 						 pnum, vol_id, lnum);
 					err = -EBADMSG;
-				} else
+				} else {
 					err = -EINVAL;
 					ubi_ro_mode(ubi);
+				}
 			}
 			goto out_free;
 		} else if (err == UBI_IO_BITFLIPS)
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index 84673eb..df51d60 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -157,7 +157,7 @@ config IPVLAN
       making it transparent to the connected L2 switch.
 
       Ipvlan devices can be added using the "ip" command from the
-      iproute2 package starting with the iproute2-X.Y.ZZ release:
+      iproute2 package starting with the iproute2-3.19 release:
 
       "ip link add link <main-dev> [ NAME ] type ipvlan"
 
diff --git a/drivers/net/appletalk/Kconfig b/drivers/net/appletalk/Kconfig
index 4ce6ca5..dc6b78e 100644
--- a/drivers/net/appletalk/Kconfig
+++ b/drivers/net/appletalk/Kconfig
@@ -40,7 +40,7 @@ config DEV_APPLETALK
 
 config LTPC
 	tristate "Apple/Farallon LocalTalk PC support"
-	depends on DEV_APPLETALK && (ISA || EISA) && ISA_DMA_API
+	depends on DEV_APPLETALK && (ISA || EISA) && ISA_DMA_API && VIRT_TO_BUS
 	help
 	  This allows you to use the AppleTalk PC card to connect to LocalTalk
 	  networks. The card is also known as the Farallon PhoneNet PC card.
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index b979c26..089a402 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -3850,7 +3850,8 @@ static inline int bond_slave_override(struct bonding *bond,
 	/* Find out if any slaves have the same mapping as this skb. */
 	bond_for_each_slave_rcu(bond, slave, iter) {
 		if (slave->queue_id == skb->queue_mapping) {
-			if (bond_slave_can_tx(slave)) {
+			if (bond_slave_is_up(slave) &&
+			    slave->link == BOND_LINK_UP) {
 				bond_dev_queue_xmit(bond, skb, slave->dev);
 				return 0;
 			}
diff --git a/drivers/net/can/Kconfig b/drivers/net/can/Kconfig
index 98d73aa..58808f6 100644
--- a/drivers/net/can/Kconfig
+++ b/drivers/net/can/Kconfig
@@ -131,7 +131,7 @@ config CAN_RCAR
 
 config CAN_XILINXCAN
 	tristate "Xilinx CAN"
-	depends on ARCH_ZYNQ || MICROBLAZE || COMPILE_TEST
+	depends on ARCH_ZYNQ || ARM64 || MICROBLAZE || COMPILE_TEST
 	depends on COMMON_CLK && HAS_IOMEM
 	---help---
 	  Xilinx CAN driver. This driver supports both soft AXI CAN IP and
diff --git a/drivers/net/can/dev.c b/drivers/net/can/dev.c
index 3c82e02..b0f6924 100644
--- a/drivers/net/can/dev.c
+++ b/drivers/net/can/dev.c
@@ -579,6 +579,10 @@ struct sk_buff *alloc_can_skb(struct net_device *dev, struct can_frame **cf)
 	skb->pkt_type = PACKET_BROADCAST;
 	skb->ip_summed = CHECKSUM_UNNECESSARY;
 
+	skb_reset_mac_header(skb);
+	skb_reset_network_header(skb);
+	skb_reset_transport_header(skb);
+
 	can_skb_reserve(skb);
 	can_skb_prv(skb)->ifindex = dev->ifindex;
 
@@ -603,6 +607,10 @@ struct sk_buff *alloc_canfd_skb(struct net_device *dev,
 	skb->pkt_type = PACKET_BROADCAST;
 	skb->ip_summed = CHECKSUM_UNNECESSARY;
 
+	skb_reset_mac_header(skb);
+	skb_reset_network_header(skb);
+	skb_reset_transport_header(skb);
+
 	can_skb_reserve(skb);
 	can_skb_prv(skb)->ifindex = dev->ifindex;
 
diff --git a/drivers/net/can/flexcan.c b/drivers/net/can/flexcan.c
index 80c46ad..ad0a7e8 100644
--- a/drivers/net/can/flexcan.c
+++ b/drivers/net/can/flexcan.c
@@ -592,13 +592,12 @@ static int flexcan_poll_state(struct net_device *dev, u32 reg_esr)
 		rx_state = unlikely(reg_esr & FLEXCAN_ESR_RX_WRN) ?
 			   CAN_STATE_ERROR_WARNING : CAN_STATE_ERROR_ACTIVE;
 		new_state = max(tx_state, rx_state);
-	} else if (unlikely(flt == FLEXCAN_ESR_FLT_CONF_PASSIVE)) {
+	} else {
 		__flexcan_get_berr_counter(dev, &bec);
-		new_state = CAN_STATE_ERROR_PASSIVE;
+		new_state = flt == FLEXCAN_ESR_FLT_CONF_PASSIVE ?
+			    CAN_STATE_ERROR_PASSIVE : CAN_STATE_BUS_OFF;
 		rx_state = bec.rxerr >= bec.txerr ? new_state : 0;
 		tx_state = bec.rxerr <= bec.txerr ? new_state : 0;
-	} else {
-		new_state = CAN_STATE_BUS_OFF;
 	}
 
 	/* state hasn't changed */
@@ -1158,12 +1157,19 @@ static int flexcan_probe(struct platform_device *pdev)
 	const struct flexcan_devtype_data *devtype_data;
 	struct net_device *dev;
 	struct flexcan_priv *priv;
+	struct regulator *reg_xceiver;
 	struct resource *mem;
 	struct clk *clk_ipg = NULL, *clk_per = NULL;
 	void __iomem *base;
 	int err, irq;
 	u32 clock_freq = 0;
 
+	reg_xceiver = devm_regulator_get(&pdev->dev, "xceiver");
+	if (PTR_ERR(reg_xceiver) == -EPROBE_DEFER)
+		return -EPROBE_DEFER;
+	else if (IS_ERR(reg_xceiver))
+		reg_xceiver = NULL;
+
 	if (pdev->dev.of_node)
 		of_property_read_u32(pdev->dev.of_node,
 						"clock-frequency", &clock_freq);
@@ -1224,9 +1230,7 @@ static int flexcan_probe(struct platform_device *pdev)
 	priv->pdata = dev_get_platdata(&pdev->dev);
 	priv->devtype_data = devtype_data;
 
-	priv->reg_xceiver = devm_regulator_get(&pdev->dev, "xceiver");
-	if (IS_ERR(priv->reg_xceiver))
-		priv->reg_xceiver = NULL;
+	priv->reg_xceiver = reg_xceiver;
 
 	netif_napi_add(dev, &priv->napi, flexcan_poll, FLEXCAN_NAPI_WEIGHT);
 
diff --git a/drivers/net/can/usb/gs_usb.c b/drivers/net/can/usb/gs_usb.c
index 009acc8..8b4d3e6 100644
--- a/drivers/net/can/usb/gs_usb.c
+++ b/drivers/net/can/usb/gs_usb.c
@@ -901,6 +901,8 @@ static int gs_usb_probe(struct usb_interface *intf, const struct usb_device_id *
 	}
 
 	dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+	if (!dev)
+		return -ENOMEM;
 	init_usb_anchor(&dev->rx_submitted);
 
 	atomic_set(&dev->active_channels, 0);
diff --git a/drivers/net/can/usb/kvaser_usb.c b/drivers/net/can/usb/kvaser_usb.c
index 2928f70..57611fd 100644
--- a/drivers/net/can/usb/kvaser_usb.c
+++ b/drivers/net/can/usb/kvaser_usb.c
@@ -14,6 +14,8 @@
  * Copyright (C) 2015 Valeo S.A.
  */
 
+#include <linux/spinlock.h>
+#include <linux/kernel.h>
 #include <linux/completion.h>
 #include <linux/module.h>
 #include <linux/netdevice.h>
@@ -23,7 +25,6 @@
 #include <linux/can/dev.h>
 #include <linux/can/error.h>
 
-#define MAX_TX_URBS			16
 #define MAX_RX_URBS			4
 #define START_TIMEOUT			1000 /* msecs */
 #define STOP_TIMEOUT			1000 /* msecs */
@@ -441,6 +442,7 @@ struct kvaser_usb_error_summary {
 	};
 };
 
+/* Context for an outstanding, not yet ACKed, transmission */
 struct kvaser_usb_tx_urb_context {
 	struct kvaser_usb_net_priv *priv;
 	u32 echo_index;
@@ -454,8 +456,13 @@ struct kvaser_usb {
 	struct usb_endpoint_descriptor *bulk_in, *bulk_out;
 	struct usb_anchor rx_submitted;
 
+	/* @max_tx_urbs: Firmware-reported maximum number of oustanding,
+	 * not yet ACKed, transmissions on this device. This value is
+	 * also used as a sentinel for marking free tx contexts.
+	 */
 	u32 fw_version;
 	unsigned int nchannels;
+	unsigned int max_tx_urbs;
 	enum kvaser_usb_family family;
 
 	bool rxinitdone;
@@ -465,18 +472,18 @@ struct kvaser_usb {
 
 struct kvaser_usb_net_priv {
 	struct can_priv can;
-
-	atomic_t active_tx_urbs;
-	struct usb_anchor tx_submitted;
-	struct kvaser_usb_tx_urb_context tx_contexts[MAX_TX_URBS];
-
-	struct completion start_comp, stop_comp;
+	struct can_berr_counter bec;
 
 	struct kvaser_usb *dev;
 	struct net_device *netdev;
 	int channel;
 
-	struct can_berr_counter bec;
+	struct completion start_comp, stop_comp;
+	struct usb_anchor tx_submitted;
+
+	spinlock_t tx_contexts_lock;
+	int active_tx_contexts;
+	struct kvaser_usb_tx_urb_context tx_contexts[];
 };
 
 static const struct usb_device_id kvaser_usb_table[] = {
@@ -584,8 +591,15 @@ static int kvaser_usb_wait_msg(const struct kvaser_usb *dev, u8 id,
 		while (pos <= actual_len - MSG_HEADER_LEN) {
 			tmp = buf + pos;
 
-			if (!tmp->len)
-				break;
+			/* Handle messages crossing the USB endpoint max packet
+			 * size boundary. Check kvaser_usb_read_bulk_callback()
+			 * for further details.
+			 */
+			if (tmp->len == 0) {
+				pos = round_up(pos, le16_to_cpu(dev->bulk_in->
+								wMaxPacketSize));
+				continue;
+			}
 
 			if (pos + tmp->len > actual_len) {
 				dev_err(dev->udev->dev.parent,
@@ -647,9 +661,13 @@ static int kvaser_usb_get_software_info(struct kvaser_usb *dev)
 	switch (dev->family) {
 	case KVASER_LEAF:
 		dev->fw_version = le32_to_cpu(msg.u.leaf.softinfo.fw_version);
+		dev->max_tx_urbs =
+			le16_to_cpu(msg.u.leaf.softinfo.max_outstanding_tx);
 		break;
 	case KVASER_USBCAN:
 		dev->fw_version = le32_to_cpu(msg.u.usbcan.softinfo.fw_version);
+		dev->max_tx_urbs =
+			le16_to_cpu(msg.u.usbcan.softinfo.max_outstanding_tx);
 		break;
 	}
 
@@ -686,6 +704,7 @@ static void kvaser_usb_tx_acknowledge(const struct kvaser_usb *dev,
 	struct kvaser_usb_net_priv *priv;
 	struct sk_buff *skb;
 	struct can_frame *cf;
+	unsigned long flags;
 	u8 channel, tid;
 
 	channel = msg->u.tx_acknowledge_header.channel;
@@ -704,7 +723,7 @@ static void kvaser_usb_tx_acknowledge(const struct kvaser_usb *dev,
 
 	stats = &priv->netdev->stats;
 
-	context = &priv->tx_contexts[tid % MAX_TX_URBS];
+	context = &priv->tx_contexts[tid % dev->max_tx_urbs];
 
 	/* Sometimes the state change doesn't come after a bus-off event */
 	if (priv->can.restart_ms &&
@@ -729,12 +748,15 @@ static void kvaser_usb_tx_acknowledge(const struct kvaser_usb *dev,
 
 	stats->tx_packets++;
 	stats->tx_bytes += context->dlc;
-	can_get_echo_skb(priv->netdev, context->echo_index);
 
-	context->echo_index = MAX_TX_URBS;
-	atomic_dec(&priv->active_tx_urbs);
+	spin_lock_irqsave(&priv->tx_contexts_lock, flags);
 
+	can_get_echo_skb(priv->netdev, context->echo_index);
+	context->echo_index = dev->max_tx_urbs;
+	--priv->active_tx_contexts;
 	netif_wake_queue(priv->netdev);
+
+	spin_unlock_irqrestore(&priv->tx_contexts_lock, flags);
 }
 
 static void kvaser_usb_simple_msg_callback(struct urb *urb)
@@ -787,7 +809,6 @@ static int kvaser_usb_simple_msg_async(struct kvaser_usb_net_priv *priv,
 		netdev_err(netdev, "Error transmitting URB\n");
 		usb_unanchor_urb(urb);
 		usb_free_urb(urb);
-		kfree(buf);
 		return err;
 	}
 
@@ -796,17 +817,6 @@ static int kvaser_usb_simple_msg_async(struct kvaser_usb_net_priv *priv,
 	return 0;
 }
 
-static void kvaser_usb_unlink_tx_urbs(struct kvaser_usb_net_priv *priv)
-{
-	int i;
-
-	usb_kill_anchored_urbs(&priv->tx_submitted);
-	atomic_set(&priv->active_tx_urbs, 0);
-
-	for (i = 0; i < MAX_TX_URBS; i++)
-		priv->tx_contexts[i].echo_index = MAX_TX_URBS;
-}
-
 static void kvaser_usb_rx_error_update_can_state(struct kvaser_usb_net_priv *priv,
 						 const struct kvaser_usb_error_summary *es,
 						 struct can_frame *cf)
@@ -1317,8 +1327,20 @@ static void kvaser_usb_read_bulk_callback(struct urb *urb)
 	while (pos <= urb->actual_length - MSG_HEADER_LEN) {
 		msg = urb->transfer_buffer + pos;
 
-		if (!msg->len)
-			break;
+		/* The Kvaser firmware can only read and write messages that
+		 * does not cross the USB's endpoint wMaxPacketSize boundary.
+		 * If a follow-up command crosses such boundary, firmware puts
+		 * a placeholder zero-length command in its place then aligns
+		 * the real command to the next max packet size.
+		 *
+		 * Handle such cases or we're going to miss a significant
+		 * number of events in case of a heavy rx load on the bus.
+		 */
+		if (msg->len == 0) {
+			pos = round_up(pos, le16_to_cpu(dev->bulk_in->
+							wMaxPacketSize));
+			continue;
+		}
 
 		if (pos + msg->len > urb->actual_length) {
 			dev_err(dev->udev->dev.parent, "Format error\n");
@@ -1326,7 +1348,6 @@ static void kvaser_usb_read_bulk_callback(struct urb *urb)
 		}
 
 		kvaser_usb_handle_message(dev, msg);
-
 		pos += msg->len;
 	}
 
@@ -1498,6 +1519,26 @@ error:
 	return err;
 }
 
+static void kvaser_usb_reset_tx_urb_contexts(struct kvaser_usb_net_priv *priv)
+{
+	int i, max_tx_urbs;
+
+	max_tx_urbs = priv->dev->max_tx_urbs;
+
+	priv->active_tx_contexts = 0;
+	for (i = 0; i < max_tx_urbs; i++)
+		priv->tx_contexts[i].echo_index = max_tx_urbs;
+}
+
+/* This method might sleep. Do not call it in the atomic context
+ * of URB completions.
+ */
+static void kvaser_usb_unlink_tx_urbs(struct kvaser_usb_net_priv *priv)
+{
+	usb_kill_anchored_urbs(&priv->tx_submitted);
+	kvaser_usb_reset_tx_urb_contexts(priv);
+}
+
 static void kvaser_usb_unlink_all_urbs(struct kvaser_usb *dev)
 {
 	int i;
@@ -1615,9 +1656,9 @@ static netdev_tx_t kvaser_usb_start_xmit(struct sk_buff *skb,
 	struct urb *urb;
 	void *buf;
 	struct kvaser_msg *msg;
-	int i, err;
-	int ret = NETDEV_TX_OK;
+	int i, err, ret = NETDEV_TX_OK;
 	u8 *msg_tx_can_flags = NULL;		/* GCC */
+	unsigned long flags;
 
 	if (can_dropped_invalid_skb(netdev, skb))
 		return NETDEV_TX_OK;
@@ -1634,7 +1675,7 @@ static netdev_tx_t kvaser_usb_start_xmit(struct sk_buff *skb,
 	if (!buf) {
 		stats->tx_dropped++;
 		dev_kfree_skb(skb);
-		goto nobufmem;
+		goto freeurb;
 	}
 
 	msg = buf;
@@ -1671,22 +1712,32 @@ static netdev_tx_t kvaser_usb_start_xmit(struct sk_buff *skb,
 	if (cf->can_id & CAN_RTR_FLAG)
 		*msg_tx_can_flags |= MSG_FLAG_REMOTE_FRAME;
 
-	for (i = 0; i < ARRAY_SIZE(priv->tx_contexts); i++) {
-		if (priv->tx_contexts[i].echo_index == MAX_TX_URBS) {
+	spin_lock_irqsave(&priv->tx_contexts_lock, flags);
+	for (i = 0; i < dev->max_tx_urbs; i++) {
+		if (priv->tx_contexts[i].echo_index == dev->max_tx_urbs) {
 			context = &priv->tx_contexts[i];
+
+			context->echo_index = i;
+			can_put_echo_skb(skb, netdev, context->echo_index);
+			++priv->active_tx_contexts;
+			if (priv->active_tx_contexts >= dev->max_tx_urbs)
+				netif_stop_queue(netdev);
+
 			break;
 		}
 	}
+	spin_unlock_irqrestore(&priv->tx_contexts_lock, flags);
 
 	/* This should never happen; it implies a flow control bug */
 	if (!context) {
 		netdev_warn(netdev, "cannot find free context\n");
+
+		kfree(buf);
 		ret =  NETDEV_TX_BUSY;
-		goto releasebuf;
+		goto freeurb;
 	}
 
 	context->priv = priv;
-	context->echo_index = i;
 	context->dlc = cf->can_dlc;
 
 	msg->u.tx_can.tid = context->echo_index;
@@ -1698,18 +1749,17 @@ static netdev_tx_t kvaser_usb_start_xmit(struct sk_buff *skb,
 			  kvaser_usb_write_bulk_callback, context);
 	usb_anchor_urb(urb, &priv->tx_submitted);
 
-	can_put_echo_skb(skb, netdev, context->echo_index);
-
-	atomic_inc(&priv->active_tx_urbs);
-
-	if (atomic_read(&priv->active_tx_urbs) >= MAX_TX_URBS)
-		netif_stop_queue(netdev);
-
 	err = usb_submit_urb(urb, GFP_ATOMIC);
 	if (unlikely(err)) {
+		spin_lock_irqsave(&priv->tx_contexts_lock, flags);
+
 		can_free_echo_skb(netdev, context->echo_index);
+		context->echo_index = dev->max_tx_urbs;
+		--priv->active_tx_contexts;
+		netif_wake_queue(netdev);
+
+		spin_unlock_irqrestore(&priv->tx_contexts_lock, flags);
 
-		atomic_dec(&priv->active_tx_urbs);
 		usb_unanchor_urb(urb);
 
 		stats->tx_dropped++;
@@ -1719,16 +1769,12 @@ static netdev_tx_t kvaser_usb_start_xmit(struct sk_buff *skb,
 		else
 			netdev_warn(netdev, "Failed tx_urb %d\n", err);
 
-		goto releasebuf;
+		goto freeurb;
 	}
 
-	usb_free_urb(urb);
-
-	return NETDEV_TX_OK;
+	ret = NETDEV_TX_OK;
 
-releasebuf:
-	kfree(buf);
-nobufmem:
+freeurb:
 	usb_free_urb(urb);
 	return ret;
 }
@@ -1840,13 +1886,15 @@ static int kvaser_usb_init_one(struct usb_interface *intf,
 	struct kvaser_usb *dev = usb_get_intfdata(intf);
 	struct net_device *netdev;
 	struct kvaser_usb_net_priv *priv;
-	int i, err;
+	int err;
 
 	err = kvaser_usb_send_simple_msg(dev, CMD_RESET_CHIP, channel);
 	if (err)
 		return err;
 
-	netdev = alloc_candev(sizeof(*priv), MAX_TX_URBS);
+	netdev = alloc_candev(sizeof(*priv) +
+			      dev->max_tx_urbs * sizeof(*priv->tx_contexts),
+			      dev->max_tx_urbs);
 	if (!netdev) {
 		dev_err(&intf->dev, "Cannot alloc candev\n");
 		return -ENOMEM;
@@ -1854,19 +1902,17 @@ static int kvaser_usb_init_one(struct usb_interface *intf,
 
 	priv = netdev_priv(netdev);
 
+	init_usb_anchor(&priv->tx_submitted);
 	init_completion(&priv->start_comp);
 	init_completion(&priv->stop_comp);
 
-	init_usb_anchor(&priv->tx_submitted);
-	atomic_set(&priv->active_tx_urbs, 0);
-
-	for (i = 0; i < ARRAY_SIZE(priv->tx_contexts); i++)
-		priv->tx_contexts[i].echo_index = MAX_TX_URBS;
-
 	priv->dev = dev;
 	priv->netdev = netdev;
 	priv->channel = channel;
 
+	spin_lock_init(&priv->tx_contexts_lock);
+	kvaser_usb_reset_tx_urb_contexts(priv);
+
 	priv->can.state = CAN_STATE_STOPPED;
 	priv->can.clock.freq = CAN_USB_CLOCK;
 	priv->can.bittiming_const = &kvaser_usb_bittiming_const;
@@ -1976,6 +2022,13 @@ static int kvaser_usb_probe(struct usb_interface *intf,
 		return err;
 	}
 
+	dev_dbg(&intf->dev, "Firmware version: %d.%d.%d\n",
+		((dev->fw_version >> 24) & 0xff),
+		((dev->fw_version >> 16) & 0xff),
+		(dev->fw_version & 0xffff));
+
+	dev_dbg(&intf->dev, "Max oustanding tx = %d URBs\n", dev->max_tx_urbs);
+
 	err = kvaser_usb_get_card_info(dev);
 	if (err) {
 		dev_err(&intf->dev,
@@ -1983,11 +2036,6 @@ static int kvaser_usb_probe(struct usb_interface *intf,
 		return err;
 	}
 
-	dev_dbg(&intf->dev, "Firmware version: %d.%d.%d\n",
-		((dev->fw_version >> 24) & 0xff),
-		((dev->fw_version >> 16) & 0xff),
-		(dev->fw_version & 0xffff));
-
 	for (i = 0; i < dev->nchannels; i++) {
 		err = kvaser_usb_init_one(intf, id, i);
 		if (err) {
diff --git a/drivers/net/can/usb/peak_usb/pcan_ucan.h b/drivers/net/can/usb/peak_usb/pcan_ucan.h
index 1ba7c250..e8fc495 100644
--- a/drivers/net/can/usb/peak_usb/pcan_ucan.h
+++ b/drivers/net/can/usb/peak_usb/pcan_ucan.h
@@ -26,8 +26,8 @@
 #define PUCAN_CMD_FILTER_STD		0x008
 #define PUCAN_CMD_TX_ABORT		0x009
 #define PUCAN_CMD_WR_ERR_CNT		0x00a
-#define PUCAN_CMD_RX_FRAME_ENABLE	0x00b
-#define PUCAN_CMD_RX_FRAME_DISABLE	0x00c
+#define PUCAN_CMD_SET_EN_OPTION		0x00b
+#define PUCAN_CMD_CLR_DIS_OPTION	0x00c
 #define PUCAN_CMD_END_OF_COLLECTION	0x3ff
 
 /* uCAN received messages list */
@@ -101,14 +101,15 @@ struct __packed pucan_wr_err_cnt {
 	u16	unused;
 };
 
-/* uCAN RX_FRAME_ENABLE command fields */
-#define PUCAN_FLTEXT_ERROR		0x0001
-#define PUCAN_FLTEXT_BUSLOAD		0x0002
+/* uCAN SET_EN/CLR_DIS _OPTION command fields */
+#define PUCAN_OPTION_ERROR		0x0001
+#define PUCAN_OPTION_BUSLOAD		0x0002
+#define PUCAN_OPTION_CANDFDISO		0x0004
 
-struct __packed pucan_filter_ext {
+struct __packed pucan_options {
 	__le16	opcode_channel;
 
-	__le16	ext_mask;
+	__le16	options;
 	u32	unused;
 };
 
diff --git a/drivers/net/can/usb/peak_usb/pcan_usb_fd.c b/drivers/net/can/usb/peak_usb/pcan_usb_fd.c
index 962c3f0..a9221ad 100644
--- a/drivers/net/can/usb/peak_usb/pcan_usb_fd.c
+++ b/drivers/net/can/usb/peak_usb/pcan_usb_fd.c
@@ -110,13 +110,13 @@ struct __packed pcan_ufd_led {
 	u8	unused[5];
 };
 
-/* Extended usage of uCAN commands CMD_RX_FRAME_xxxABLE for PCAN-USB Pro FD */
+/* Extended usage of uCAN commands CMD_xxx_xx_OPTION for PCAN-USB Pro FD */
 #define PCAN_UFD_FLTEXT_CALIBRATION	0x8000
 
-struct __packed pcan_ufd_filter_ext {
+struct __packed pcan_ufd_options {
 	__le16	opcode_channel;
 
-	__le16	ext_mask;
+	__le16	ucan_mask;
 	u16	unused;
 	__le16	usb_mask;
 };
@@ -251,6 +251,27 @@ static int pcan_usb_fd_build_restart_cmd(struct peak_usb_device *dev, u8 *buf)
 	/* moves the pointer forward */
 	pc += sizeof(struct pucan_wr_err_cnt);
 
+	/* add command to switch from ISO to non-ISO mode, if fw allows it */
+	if (dev->can.ctrlmode_supported & CAN_CTRLMODE_FD_NON_ISO) {
+		struct pucan_options *puo = (struct pucan_options *)pc;
+
+		puo->opcode_channel =
+			(dev->can.ctrlmode & CAN_CTRLMODE_FD_NON_ISO) ?
+			pucan_cmd_opcode_channel(dev,
+						 PUCAN_CMD_CLR_DIS_OPTION) :
+			pucan_cmd_opcode_channel(dev, PUCAN_CMD_SET_EN_OPTION);
+
+		puo->options = cpu_to_le16(PUCAN_OPTION_CANDFDISO);
+
+		/* to be sure that no other extended bits will be taken into
+		 * account
+		 */
+		puo->unused = 0;
+
+		/* moves the pointer forward */
+		pc += sizeof(struct pucan_options);
+	}
+
 	/* next, go back to operational mode */
 	cmd = (struct pucan_command *)pc;
 	cmd->opcode_channel = pucan_cmd_opcode_channel(dev,
@@ -321,21 +342,21 @@ static int pcan_usb_fd_set_filter_std(struct peak_usb_device *dev, int idx,
 	return pcan_usb_fd_send_cmd(dev, cmd);
 }
 
-/* set/unset notifications filter:
+/* set/unset options
  *
- *	onoff	sets(1)/unset(0) notifications
- *	mask	each bit defines a kind of notification to set/unset
+ *	onoff	set(1)/unset(0) options
+ *	mask	each bit defines a kind of options to set/unset
  */
-static int pcan_usb_fd_set_filter_ext(struct peak_usb_device *dev,
-				      bool onoff, u16 ext_mask, u16 usb_mask)
+static int pcan_usb_fd_set_options(struct peak_usb_device *dev,
+				   bool onoff, u16 ucan_mask, u16 usb_mask)
 {
-	struct pcan_ufd_filter_ext *cmd = pcan_usb_fd_cmd_buffer(dev);
+	struct pcan_ufd_options *cmd = pcan_usb_fd_cmd_buffer(dev);
 
 	cmd->opcode_channel = pucan_cmd_opcode_channel(dev,
-					(onoff) ? PUCAN_CMD_RX_FRAME_ENABLE :
-						  PUCAN_CMD_RX_FRAME_DISABLE);
+					(onoff) ? PUCAN_CMD_SET_EN_OPTION :
+						  PUCAN_CMD_CLR_DIS_OPTION);
 
-	cmd->ext_mask = cpu_to_le16(ext_mask);
+	cmd->ucan_mask = cpu_to_le16(ucan_mask);
 	cmd->usb_mask = cpu_to_le16(usb_mask);
 
 	/* send the command */
@@ -770,9 +791,9 @@ static int pcan_usb_fd_start(struct peak_usb_device *dev)
 				       &pcan_usb_pro_fd);
 
 		/* enable USB calibration messages */
-		err = pcan_usb_fd_set_filter_ext(dev, 1,
-						 PUCAN_FLTEXT_ERROR,
-						 PCAN_UFD_FLTEXT_CALIBRATION);
+		err = pcan_usb_fd_set_options(dev, 1,
+					      PUCAN_OPTION_ERROR,
+					      PCAN_UFD_FLTEXT_CALIBRATION);
 	}
 
 	pdev->usb_if->dev_opened_count++;
@@ -806,9 +827,9 @@ static int pcan_usb_fd_stop(struct peak_usb_device *dev)
 
 	/* turn off special msgs for that interface if no other dev opened */
 	if (pdev->usb_if->dev_opened_count == 1)
-		pcan_usb_fd_set_filter_ext(dev, 0,
-					   PUCAN_FLTEXT_ERROR,
-					   PCAN_UFD_FLTEXT_CALIBRATION);
+		pcan_usb_fd_set_options(dev, 0,
+					PUCAN_OPTION_ERROR,
+					PCAN_UFD_FLTEXT_CALIBRATION);
 	pdev->usb_if->dev_opened_count--;
 
 	return 0;
@@ -860,8 +881,14 @@ static int pcan_usb_fd_init(struct peak_usb_device *dev)
 			 pdev->usb_if->fw_info.fw_version[2],
 			 dev->adapter->ctrl_count);
 
-		/* the currently supported hw is non-ISO */
-		dev->can.ctrlmode = CAN_CTRLMODE_FD_NON_ISO;
+		/* check for ability to switch between ISO/non-ISO modes */
+		if (pdev->usb_if->fw_info.fw_version[0] >= 2) {
+			/* firmware >= 2.x supports ISO/non-ISO switching */
+			dev->can.ctrlmode_supported |= CAN_CTRLMODE_FD_NON_ISO;
+		} else {
+			/* firmware < 2.x only supports fixed(!) non-ISO */
+			dev->can.ctrlmode |= CAN_CTRLMODE_FD_NON_ISO;
+		}
 
 		/* tell the hardware the can driver is running */
 		err = pcan_usb_fd_drv_loaded(dev, 1);
@@ -879,6 +906,10 @@ static int pcan_usb_fd_init(struct peak_usb_device *dev)
 
 		pdev->usb_if = ppdev->usb_if;
 		pdev->cmd_buffer_addr = ppdev->cmd_buffer_addr;
+
+		/* do a copy of the ctrlmode[_supported] too */
+		dev->can.ctrlmode = ppdev->dev.can.ctrlmode;
+		dev->can.ctrlmode_supported = ppdev->dev.can.ctrlmode_supported;
 	}
 
 	pdev->usb_if->dev[dev->ctrl_idx] = dev;
@@ -933,9 +964,9 @@ static void pcan_usb_fd_exit(struct peak_usb_device *dev)
 	if (dev->ctrl_idx == 0) {
 		/* turn off calibration message if any device were opened */
 		if (pdev->usb_if->dev_opened_count > 0)
-			pcan_usb_fd_set_filter_ext(dev, 0,
-						   PUCAN_FLTEXT_ERROR,
-						   PCAN_UFD_FLTEXT_CALIBRATION);
+			pcan_usb_fd_set_options(dev, 0,
+						PUCAN_OPTION_ERROR,
+						PCAN_UFD_FLTEXT_CALIBRATION);
 
 		/* tell USB adapter that the driver is being unloaded */
 		pcan_usb_fd_drv_loaded(dev, 0);
diff --git a/drivers/net/dsa/bcm_sf2.h b/drivers/net/dsa/bcm_sf2.h
index ee9f650..7b7053d 100644
--- a/drivers/net/dsa/bcm_sf2.h
+++ b/drivers/net/dsa/bcm_sf2.h
@@ -105,8 +105,8 @@ static inline u64 name##_readq(struct bcm_sf2_priv *priv, u32 off)	\
 {									\
 	u32 indir, dir;							\
 	spin_lock(&priv->indir_lock);					\
-	indir = reg_readl(priv, REG_DIR_DATA_READ);			\
 	dir = __raw_readl(priv->name + off);				\
+	indir = reg_readl(priv, REG_DIR_DATA_READ);			\
 	spin_unlock(&priv->indir_lock);					\
 	return (u64)indir << 32 | dir;					\
 }									\
diff --git a/drivers/net/ethernet/8390/axnet_cs.c b/drivers/net/ethernet/8390/axnet_cs.c
index 7769c05..ec6eac1 100644
--- a/drivers/net/ethernet/8390/axnet_cs.c
+++ b/drivers/net/ethernet/8390/axnet_cs.c
@@ -484,11 +484,8 @@ static int axnet_open(struct net_device *dev)
     link->open++;
 
     info->link_status = 0x00;
-    init_timer(&info->watchdog);
-    info->watchdog.function = ei_watchdog;
-    info->watchdog.data = (u_long)dev;
-    info->watchdog.expires = jiffies + HZ;
-    add_timer(&info->watchdog);
+    setup_timer(&info->watchdog, ei_watchdog, (u_long)dev);
+    mod_timer(&info->watchdog, jiffies + HZ);
 
     return ax_open(dev);
 } /* axnet_open */
diff --git a/drivers/net/ethernet/8390/pcnet_cs.c b/drivers/net/ethernet/8390/pcnet_cs.c
index 9fb7b9d..2777289 100644
--- a/drivers/net/ethernet/8390/pcnet_cs.c
+++ b/drivers/net/ethernet/8390/pcnet_cs.c
@@ -918,11 +918,8 @@ static int pcnet_open(struct net_device *dev)
 
     info->phy_id = info->eth_phy;
     info->link_status = 0x00;
-    init_timer(&info->watchdog);
-    info->watchdog.function = ei_watchdog;
-    info->watchdog.data = (u_long)dev;
-    info->watchdog.expires = jiffies + HZ;
-    add_timer(&info->watchdog);
+    setup_timer(&info->watchdog, ei_watchdog, (u_long)dev);
+    mod_timer(&info->watchdog, jiffies + HZ);
 
     return ei_open(dev);
 } /* pcnet_open */
diff --git a/drivers/net/ethernet/altera/altera_tse_main.c b/drivers/net/ethernet/altera/altera_tse_main.c
index 760c72c..6725dc0 100644
--- a/drivers/net/ethernet/altera/altera_tse_main.c
+++ b/drivers/net/ethernet/altera/altera_tse_main.c
@@ -376,7 +376,8 @@ static int tse_rx(struct altera_tse_private *priv, int limit)
 	u16 pktlength;
 	u16 pktstatus;
 
-	while ((rxstatus = priv->dmaops->get_rx_status(priv)) != 0) {
+	while (((rxstatus = priv->dmaops->get_rx_status(priv)) != 0) &&
+	       (count < limit))  {
 		pktstatus = rxstatus >> 16;
 		pktlength = rxstatus & 0xffff;
 
@@ -491,28 +492,27 @@ static int tse_poll(struct napi_struct *napi, int budget)
 	struct altera_tse_private *priv =
 			container_of(napi, struct altera_tse_private, napi);
 	int rxcomplete = 0;
-	int txcomplete = 0;
 	unsigned long int flags;
 
-	txcomplete = tse_tx_complete(priv);
+	tse_tx_complete(priv);
 
 	rxcomplete = tse_rx(priv, budget);
 
-	if (rxcomplete >= budget || txcomplete > 0)
-		return rxcomplete;
+	if (rxcomplete < budget) {
 
-	napi_gro_flush(napi, false);
-	__napi_complete(napi);
+		napi_gro_flush(napi, false);
+		__napi_complete(napi);
 
-	netdev_dbg(priv->dev,
-		   "NAPI Complete, did %d packets with budget %d\n",
-		   txcomplete+rxcomplete, budget);
+		netdev_dbg(priv->dev,
+			   "NAPI Complete, did %d packets with budget %d\n",
+			   rxcomplete, budget);
 
-	spin_lock_irqsave(&priv->rxdma_irq_lock, flags);
-	priv->dmaops->enable_rxirq(priv);
-	priv->dmaops->enable_txirq(priv);
-	spin_unlock_irqrestore(&priv->rxdma_irq_lock, flags);
-	return rxcomplete + txcomplete;
+		spin_lock_irqsave(&priv->rxdma_irq_lock, flags);
+		priv->dmaops->enable_rxirq(priv);
+		priv->dmaops->enable_txirq(priv);
+		spin_unlock_irqrestore(&priv->rxdma_irq_lock, flags);
+	}
+	return rxcomplete;
 }
 
 /* DMA TX & RX FIFO interrupt routing
@@ -521,7 +521,6 @@ static irqreturn_t altera_isr(int irq, void *dev_id)
 {
 	struct net_device *dev = dev_id;
 	struct altera_tse_private *priv;
-	unsigned long int flags;
 
 	if (unlikely(!dev)) {
 		pr_err("%s: invalid dev pointer\n", __func__);
@@ -529,20 +528,20 @@ static irqreturn_t altera_isr(int irq, void *dev_id)
 	}
 	priv = netdev_priv(dev);
 
-	/* turn off desc irqs and enable napi rx */
-	spin_lock_irqsave(&priv->rxdma_irq_lock, flags);
+	spin_lock(&priv->rxdma_irq_lock);
+	/* reset IRQs */
+	priv->dmaops->clear_rxirq(priv);
+	priv->dmaops->clear_txirq(priv);
+	spin_unlock(&priv->rxdma_irq_lock);
 
 	if (likely(napi_schedule_prep(&priv->napi))) {
+		spin_lock(&priv->rxdma_irq_lock);
 		priv->dmaops->disable_rxirq(priv);
 		priv->dmaops->disable_txirq(priv);
+		spin_unlock(&priv->rxdma_irq_lock);
 		__napi_schedule(&priv->napi);
 	}
 
-	/* reset IRQs */
-	priv->dmaops->clear_rxirq(priv);
-	priv->dmaops->clear_txirq(priv);
-
-	spin_unlock_irqrestore(&priv->rxdma_irq_lock, flags);
 
 	return IRQ_HANDLED;
 }
@@ -1399,7 +1398,7 @@ static int altera_tse_probe(struct platform_device *pdev)
 	}
 
 	if (of_property_read_u32(pdev->dev.of_node, "tx-fifo-depth",
-				 &priv->rx_fifo_depth)) {
+				 &priv->tx_fifo_depth)) {
 		dev_err(&pdev->dev, "cannot obtain tx-fifo-depth\n");
 		ret = -ENXIO;
 		goto err_free_netdev;
diff --git a/drivers/net/ethernet/amd/pcnet32.c b/drivers/net/ethernet/amd/pcnet32.c
index 11d6e65..15a8190 100644
--- a/drivers/net/ethernet/amd/pcnet32.c
+++ b/drivers/net/ethernet/amd/pcnet32.c
@@ -1543,7 +1543,7 @@ pcnet32_probe1(unsigned long ioaddr, int shared, struct pci_dev *pdev)
 {
 	struct pcnet32_private *lp;
 	int i, media;
-	int fdx, mii, fset, dxsuflo;
+	int fdx, mii, fset, dxsuflo, sram;
 	int chip_version;
 	char *chipname;
 	struct net_device *dev;
@@ -1580,7 +1580,7 @@ pcnet32_probe1(unsigned long ioaddr, int shared, struct pci_dev *pdev)
 	}
 
 	/* initialize variables */
-	fdx = mii = fset = dxsuflo = 0;
+	fdx = mii = fset = dxsuflo = sram = 0;
 	chip_version = (chip_version >> 12) & 0xffff;
 
 	switch (chip_version) {
@@ -1613,6 +1613,7 @@ pcnet32_probe1(unsigned long ioaddr, int shared, struct pci_dev *pdev)
 		chipname = "PCnet/FAST III 79C973";	/* PCI */
 		fdx = 1;
 		mii = 1;
+		sram = 1;
 		break;
 	case 0x2626:
 		chipname = "PCnet/Home 79C978";	/* PCI */
@@ -1636,6 +1637,7 @@ pcnet32_probe1(unsigned long ioaddr, int shared, struct pci_dev *pdev)
 		chipname = "PCnet/FAST III 79C975";	/* PCI */
 		fdx = 1;
 		mii = 1;
+		sram = 1;
 		break;
 	case 0x2628:
 		chipname = "PCnet/PRO 79C976";
@@ -1664,6 +1666,31 @@ pcnet32_probe1(unsigned long ioaddr, int shared, struct pci_dev *pdev)
 		dxsuflo = 1;
 	}
 
+	/*
+	 * The Am79C973/Am79C975 controllers come with 12K of SRAM
+	 * which we can use for the Tx/Rx buffers but most importantly,
+	 * the use of SRAM allow us to use the BCR18:NOUFLO bit to avoid
+	 * Tx fifo underflows.
+	 */
+	if (sram) {
+		/*
+		 * The SRAM is being configured in two steps. First we
+		 * set the SRAM size in the BCR25:SRAM_SIZE bits. According
+		 * to the datasheet, each bit corresponds to a 512-byte
+		 * page so we can have at most 24 pages. The SRAM_SIZE
+		 * holds the value of the upper 8 bits of the 16-bit SRAM size.
+		 * The low 8-bits start at 0x00 and end at 0xff. So the
+		 * address range is from 0x0000 up to 0x17ff. Therefore,
+		 * the SRAM_SIZE is set to 0x17. The next step is to set
+		 * the BCR26:SRAM_BND midway through so the Tx and Rx
+		 * buffers can share the SRAM equally.
+		 */
+		a->write_bcr(ioaddr, 25, 0x17);
+		a->write_bcr(ioaddr, 26, 0xc);
+		/* And finally enable the NOUFLO bit */
+		a->write_bcr(ioaddr, 18, a->read_bcr(ioaddr, 18) | (1 << 11));
+	}
+
 	dev = alloc_etherdev(sizeof(*lp));
 	if (!dev) {
 		ret = -ENOMEM;
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-drv.c b/drivers/net/ethernet/amd/xgbe/xgbe-drv.c
index b93d440..885b02b 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-drv.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-drv.c
@@ -609,6 +609,68 @@ static void xgbe_napi_disable(struct xgbe_prv_data *pdata, unsigned int del)
 	}
 }
 
+static int xgbe_request_irqs(struct xgbe_prv_data *pdata)
+{
+	struct xgbe_channel *channel;
+	struct net_device *netdev = pdata->netdev;
+	unsigned int i;
+	int ret;
+
+	ret = devm_request_irq(pdata->dev, pdata->dev_irq, xgbe_isr, 0,
+			       netdev->name, pdata);
+	if (ret) {
+		netdev_alert(netdev, "error requesting irq %d\n",
+			     pdata->dev_irq);
+		return ret;
+	}
+
+	if (!pdata->per_channel_irq)
+		return 0;
+
+	channel = pdata->channel;
+	for (i = 0; i < pdata->channel_count; i++, channel++) {
+		snprintf(channel->dma_irq_name,
+			 sizeof(channel->dma_irq_name) - 1,
+			 "%s-TxRx-%u", netdev_name(netdev),
+			 channel->queue_index);
+
+		ret = devm_request_irq(pdata->dev, channel->dma_irq,
+				       xgbe_dma_isr, 0,
+				       channel->dma_irq_name, channel);
+		if (ret) {
+			netdev_alert(netdev, "error requesting irq %d\n",
+				     channel->dma_irq);
+			goto err_irq;
+		}
+	}
+
+	return 0;
+
+err_irq:
+	/* Using an unsigned int, 'i' will go to UINT_MAX and exit */
+	for (i--, channel--; i < pdata->channel_count; i--, channel--)
+		devm_free_irq(pdata->dev, channel->dma_irq, channel);
+
+	devm_free_irq(pdata->dev, pdata->dev_irq, pdata);
+
+	return ret;
+}
+
+static void xgbe_free_irqs(struct xgbe_prv_data *pdata)
+{
+	struct xgbe_channel *channel;
+	unsigned int i;
+
+	devm_free_irq(pdata->dev, pdata->dev_irq, pdata);
+
+	if (!pdata->per_channel_irq)
+		return;
+
+	channel = pdata->channel;
+	for (i = 0; i < pdata->channel_count; i++, channel++)
+		devm_free_irq(pdata->dev, channel->dma_irq, channel);
+}
+
 void xgbe_init_tx_coalesce(struct xgbe_prv_data *pdata)
 {
 	struct xgbe_hw_if *hw_if = &pdata->hw_if;
@@ -810,20 +872,20 @@ int xgbe_powerdown(struct net_device *netdev, unsigned int caller)
 		return -EINVAL;
 	}
 
-	phy_stop(pdata->phydev);
-
 	spin_lock_irqsave(&pdata->lock, flags);
 
 	if (caller == XGMAC_DRIVER_CONTEXT)
 		netif_device_detach(netdev);
 
 	netif_tx_stop_all_queues(netdev);
-	xgbe_napi_disable(pdata, 0);
 
-	/* Powerdown Tx/Rx */
 	hw_if->powerdown_tx(pdata);
 	hw_if->powerdown_rx(pdata);
 
+	xgbe_napi_disable(pdata, 0);
+
+	phy_stop(pdata->phydev);
+
 	pdata->power_down = 1;
 
 	spin_unlock_irqrestore(&pdata->lock, flags);
@@ -854,14 +916,14 @@ int xgbe_powerup(struct net_device *netdev, unsigned int caller)
 
 	phy_start(pdata->phydev);
 
-	/* Enable Tx/Rx */
+	xgbe_napi_enable(pdata, 0);
+
 	hw_if->powerup_tx(pdata);
 	hw_if->powerup_rx(pdata);
 
 	if (caller == XGMAC_DRIVER_CONTEXT)
 		netif_device_attach(netdev);
 
-	xgbe_napi_enable(pdata, 0);
 	netif_tx_start_all_queues(netdev);
 
 	spin_unlock_irqrestore(&pdata->lock, flags);
@@ -875,6 +937,7 @@ static int xgbe_start(struct xgbe_prv_data *pdata)
 {
 	struct xgbe_hw_if *hw_if = &pdata->hw_if;
 	struct net_device *netdev = pdata->netdev;
+	int ret;
 
 	DBGPR("-->xgbe_start\n");
 
@@ -884,17 +947,31 @@ static int xgbe_start(struct xgbe_prv_data *pdata)
 
 	phy_start(pdata->phydev);
 
+	xgbe_napi_enable(pdata, 1);
+
+	ret = xgbe_request_irqs(pdata);
+	if (ret)
+		goto err_napi;
+
 	hw_if->enable_tx(pdata);
 	hw_if->enable_rx(pdata);
 
 	xgbe_init_tx_timers(pdata);
 
-	xgbe_napi_enable(pdata, 1);
 	netif_tx_start_all_queues(netdev);
 
 	DBGPR("<--xgbe_start\n");
 
 	return 0;
+
+err_napi:
+	xgbe_napi_disable(pdata, 1);
+
+	phy_stop(pdata->phydev);
+
+	hw_if->exit(pdata);
+
+	return ret;
 }
 
 static void xgbe_stop(struct xgbe_prv_data *pdata)
@@ -907,16 +984,21 @@ static void xgbe_stop(struct xgbe_prv_data *pdata)
 
 	DBGPR("-->xgbe_stop\n");
 
-	phy_stop(pdata->phydev);
-
 	netif_tx_stop_all_queues(netdev);
-	xgbe_napi_disable(pdata, 1);
 
 	xgbe_stop_tx_timers(pdata);
 
 	hw_if->disable_tx(pdata);
 	hw_if->disable_rx(pdata);
 
+	xgbe_free_irqs(pdata);
+
+	xgbe_napi_disable(pdata, 1);
+
+	phy_stop(pdata->phydev);
+
+	hw_if->exit(pdata);
+
 	channel = pdata->channel;
 	for (i = 0; i < pdata->channel_count; i++, channel++) {
 		if (!channel->tx_ring)
@@ -931,10 +1013,6 @@ static void xgbe_stop(struct xgbe_prv_data *pdata)
 
 static void xgbe_restart_dev(struct xgbe_prv_data *pdata)
 {
-	struct xgbe_channel *channel;
-	struct xgbe_hw_if *hw_if = &pdata->hw_if;
-	unsigned int i;
-
 	DBGPR("-->xgbe_restart_dev\n");
 
 	/* If not running, "restart" will happen on open */
@@ -942,19 +1020,10 @@ static void xgbe_restart_dev(struct xgbe_prv_data *pdata)
 		return;
 
 	xgbe_stop(pdata);
-	synchronize_irq(pdata->dev_irq);
-	if (pdata->per_channel_irq) {
-		channel = pdata->channel;
-		for (i = 0; i < pdata->channel_count; i++, channel++)
-			synchronize_irq(channel->dma_irq);
-	}
 
 	xgbe_free_tx_data(pdata);
 	xgbe_free_rx_data(pdata);
 
-	/* Issue software reset to device */
-	hw_if->exit(pdata);
-
 	xgbe_start(pdata);
 
 	DBGPR("<--xgbe_restart_dev\n");
@@ -1283,10 +1352,7 @@ static void xgbe_packet_info(struct xgbe_prv_data *pdata,
 static int xgbe_open(struct net_device *netdev)
 {
 	struct xgbe_prv_data *pdata = netdev_priv(netdev);
-	struct xgbe_hw_if *hw_if = &pdata->hw_if;
 	struct xgbe_desc_if *desc_if = &pdata->desc_if;
-	struct xgbe_channel *channel = NULL;
-	unsigned int i = 0;
 	int ret;
 
 	DBGPR("-->xgbe_open\n");
@@ -1329,55 +1395,14 @@ static int xgbe_open(struct net_device *netdev)
 	INIT_WORK(&pdata->restart_work, xgbe_restart);
 	INIT_WORK(&pdata->tx_tstamp_work, xgbe_tx_tstamp);
 
-	/* Request interrupts */
-	ret = devm_request_irq(pdata->dev, pdata->dev_irq, xgbe_isr, 0,
-			       netdev->name, pdata);
-	if (ret) {
-		netdev_alert(netdev, "error requesting irq %d\n",
-			     pdata->dev_irq);
-		goto err_rings;
-	}
-
-	if (pdata->per_channel_irq) {
-		channel = pdata->channel;
-		for (i = 0; i < pdata->channel_count; i++, channel++) {
-			snprintf(channel->dma_irq_name,
-				 sizeof(channel->dma_irq_name) - 1,
-				 "%s-TxRx-%u", netdev_name(netdev),
-				 channel->queue_index);
-
-			ret = devm_request_irq(pdata->dev, channel->dma_irq,
-					       xgbe_dma_isr, 0,
-					       channel->dma_irq_name, channel);
-			if (ret) {
-				netdev_alert(netdev,
-					     "error requesting irq %d\n",
-					     channel->dma_irq);
-				goto err_irq;
-			}
-		}
-	}
-
 	ret = xgbe_start(pdata);
 	if (ret)
-		goto err_start;
+		goto err_rings;
 
 	DBGPR("<--xgbe_open\n");
 
 	return 0;
 
-err_start:
-	hw_if->exit(pdata);
-
-err_irq:
-	if (pdata->per_channel_irq) {
-		/* Using an unsigned int, 'i' will go to UINT_MAX and exit */
-		for (i--, channel--; i < pdata->channel_count; i--, channel--)
-			devm_free_irq(pdata->dev, channel->dma_irq, channel);
-	}
-
-	devm_free_irq(pdata->dev, pdata->dev_irq, pdata);
-
 err_rings:
 	desc_if->free_ring_resources(pdata);
 
@@ -1399,30 +1424,16 @@ err_phy_init:
 static int xgbe_close(struct net_device *netdev)
 {
 	struct xgbe_prv_data *pdata = netdev_priv(netdev);
-	struct xgbe_hw_if *hw_if = &pdata->hw_if;
 	struct xgbe_desc_if *desc_if = &pdata->desc_if;
-	struct xgbe_channel *channel;
-	unsigned int i;
 
 	DBGPR("-->xgbe_close\n");
 
 	/* Stop the device */
 	xgbe_stop(pdata);
 
-	/* Issue software reset to device */
-	hw_if->exit(pdata);
-
 	/* Free the ring descriptors and buffers */
 	desc_if->free_ring_resources(pdata);
 
-	/* Release the interrupts */
-	devm_free_irq(pdata->dev, pdata->dev_irq, pdata);
-	if (pdata->per_channel_irq) {
-		channel = pdata->channel;
-		for (i = 0; i < pdata->channel_count; i++, channel++)
-			devm_free_irq(pdata->dev, channel->dma_irq, channel);
-	}
-
 	/* Free the channel and ring structures */
 	xgbe_free_channels(pdata);
 
diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_hw.c b/drivers/net/ethernet/apm/xgene/xgene_enet_hw.c
index 869d97f..b927021 100644
--- a/drivers/net/ethernet/apm/xgene/xgene_enet_hw.c
+++ b/drivers/net/ethernet/apm/xgene/xgene_enet_hw.c
@@ -593,7 +593,7 @@ static int xgene_enet_reset(struct xgene_enet_pdata *pdata)
 	if (!xgene_ring_mgr_init(pdata))
 		return -ENODEV;
 
-	if (!efi_enabled(EFI_BOOT)) {
+	if (pdata->clk) {
 		clk_prepare_enable(pdata->clk);
 		clk_disable_unprepare(pdata->clk);
 		clk_prepare_enable(pdata->clk);
diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_main.c b/drivers/net/ethernet/apm/xgene/xgene_enet_main.c
index 4de62b2..635a83b 100644
--- a/drivers/net/ethernet/apm/xgene/xgene_enet_main.c
+++ b/drivers/net/ethernet/apm/xgene/xgene_enet_main.c
@@ -1025,6 +1025,8 @@ static int xgene_enet_remove(struct platform_device *pdev)
 #ifdef CONFIG_ACPI
 static const struct acpi_device_id xgene_enet_acpi_match[] = {
 	{ "APMC0D05", },
+	{ "APMC0D30", },
+	{ "APMC0D31", },
 	{ }
 };
 MODULE_DEVICE_TABLE(acpi, xgene_enet_acpi_match);
@@ -1033,6 +1035,8 @@ MODULE_DEVICE_TABLE(acpi, xgene_enet_acpi_match);
 #ifdef CONFIG_OF
 static struct of_device_id xgene_enet_of_match[] = {
 	{.compatible = "apm,xgene-enet",},
+	{.compatible = "apm,xgene1-sgenet",},
+	{.compatible = "apm,xgene1-xgenet",},
 	{},
 };
 
diff --git a/drivers/net/ethernet/broadcom/bcm63xx_enet.c b/drivers/net/ethernet/broadcom/bcm63xx_enet.c
index 21206d3..a7f2cc3 100644
--- a/drivers/net/ethernet/broadcom/bcm63xx_enet.c
+++ b/drivers/net/ethernet/broadcom/bcm63xx_enet.c
@@ -486,7 +486,7 @@ static int bcm_enet_poll(struct napi_struct *napi, int budget)
 {
 	struct bcm_enet_priv *priv;
 	struct net_device *dev;
-	int tx_work_done, rx_work_done;
+	int rx_work_done;
 
 	priv = container_of(napi, struct bcm_enet_priv, napi);
 	dev = priv->net_dev;
@@ -498,14 +498,14 @@ static int bcm_enet_poll(struct napi_struct *napi, int budget)
 			 ENETDMAC_IR, priv->tx_chan);
 
 	/* reclaim sent skb */
-	tx_work_done = bcm_enet_tx_reclaim(dev, 0);
+	bcm_enet_tx_reclaim(dev, 0);
 
 	spin_lock(&priv->rx_lock);
 	rx_work_done = bcm_enet_receive_queue(dev, budget);
 	spin_unlock(&priv->rx_lock);
 
-	if (rx_work_done >= budget || tx_work_done > 0) {
-		/* rx/tx queue is not yet empty/clean */
+	if (rx_work_done >= budget) {
+		/* rx queue is not yet empty/clean */
 		return rx_work_done;
 	}
 
diff --git a/drivers/net/ethernet/broadcom/bcmsysport.c b/drivers/net/ethernet/broadcom/bcmsysport.c
index 5b308a4..783543a 100644
--- a/drivers/net/ethernet/broadcom/bcmsysport.c
+++ b/drivers/net/ethernet/broadcom/bcmsysport.c
@@ -274,9 +274,9 @@ static const struct bcm_sysport_stats bcm_sysport_gstrings_stats[] = {
 	/* RBUF misc statistics */
 	STAT_RBUF("rbuf_ovflow_cnt", mib.rbuf_ovflow_cnt, RBUF_OVFL_DISC_CNTR),
 	STAT_RBUF("rbuf_err_cnt", mib.rbuf_err_cnt, RBUF_ERR_PKT_CNTR),
-	STAT_MIB_RX("alloc_rx_buff_failed", mib.alloc_rx_buff_failed),
-	STAT_MIB_RX("rx_dma_failed", mib.rx_dma_failed),
-	STAT_MIB_TX("tx_dma_failed", mib.tx_dma_failed),
+	STAT_MIB_SOFT("alloc_rx_buff_failed", mib.alloc_rx_buff_failed),
+	STAT_MIB_SOFT("rx_dma_failed", mib.rx_dma_failed),
+	STAT_MIB_SOFT("tx_dma_failed", mib.tx_dma_failed),
 };
 
 #define BCM_SYSPORT_STATS_LEN	ARRAY_SIZE(bcm_sysport_gstrings_stats)
@@ -345,6 +345,7 @@ static void bcm_sysport_update_mib_counters(struct bcm_sysport_priv *priv)
 		s = &bcm_sysport_gstrings_stats[i];
 		switch (s->type) {
 		case BCM_SYSPORT_STAT_NETDEV:
+		case BCM_SYSPORT_STAT_SOFT:
 			continue;
 		case BCM_SYSPORT_STAT_MIB_RX:
 		case BCM_SYSPORT_STAT_MIB_TX:
diff --git a/drivers/net/ethernet/broadcom/bcmsysport.h b/drivers/net/ethernet/broadcom/bcmsysport.h
index fc19417..7e3d87a 100644
--- a/drivers/net/ethernet/broadcom/bcmsysport.h
+++ b/drivers/net/ethernet/broadcom/bcmsysport.h
@@ -570,6 +570,7 @@ enum bcm_sysport_stat_type {
 	BCM_SYSPORT_STAT_RUNT,
 	BCM_SYSPORT_STAT_RXCHK,
 	BCM_SYSPORT_STAT_RBUF,
+	BCM_SYSPORT_STAT_SOFT,
 };
 
 /* Macros to help define ethtool statistics */
@@ -590,6 +591,7 @@ enum bcm_sysport_stat_type {
 #define STAT_MIB_RX(str, m) STAT_MIB(str, m, BCM_SYSPORT_STAT_MIB_RX)
 #define STAT_MIB_TX(str, m) STAT_MIB(str, m, BCM_SYSPORT_STAT_MIB_TX)
 #define STAT_RUNT(str, m) STAT_MIB(str, m, BCM_SYSPORT_STAT_RUNT)
+#define STAT_MIB_SOFT(str, m) STAT_MIB(str, m, BCM_SYSPORT_STAT_SOFT)
 
 #define STAT_RXCHK(str, m, ofs) { \
 	.stat_string = str, \
diff --git a/drivers/net/ethernet/broadcom/bgmac.c b/drivers/net/ethernet/broadcom/bgmac.c
index 676ffe0..0469f72 100644
--- a/drivers/net/ethernet/broadcom/bgmac.c
+++ b/drivers/net/ethernet/broadcom/bgmac.c
@@ -302,9 +302,6 @@ static int bgmac_dma_rx_skb_for_slot(struct bgmac *bgmac,
 	slot->skb = skb;
 	slot->dma_addr = dma_addr;
 
-	if (slot->dma_addr & 0xC0000000)
-		bgmac_warn(bgmac, "DMA address using 0xC0000000 bit(s), it may need translation trick\n");
-
 	return 0;
 }
 
@@ -505,8 +502,6 @@ static int bgmac_dma_alloc(struct bgmac *bgmac)
 				  ring->mmio_base);
 			goto err_dma_free;
 		}
-		if (ring->dma_base & 0xC0000000)
-			bgmac_warn(bgmac, "DMA address using 0xC0000000 bit(s), it may need translation trick\n");
 
 		ring->unaligned = bgmac_dma_unaligned(bgmac, ring,
 						      BGMAC_DMA_RING_TX);
@@ -536,8 +531,6 @@ static int bgmac_dma_alloc(struct bgmac *bgmac)
 			err = -ENOMEM;
 			goto err_dma_free;
 		}
-		if (ring->dma_base & 0xC0000000)
-			bgmac_warn(bgmac, "DMA address using 0xC0000000 bit(s), it may need translation trick\n");
 
 		ring->unaligned = bgmac_dma_unaligned(bgmac, ring,
 						      BGMAC_DMA_RING_RX);
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
index 756053c..4085c4b 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
@@ -1811,7 +1811,7 @@ struct bnx2x {
 	int			stats_state;
 
 	/* used for synchronization of concurrent threads statistics handling */
-	spinlock_t		stats_lock;
+	struct mutex		stats_lock;
 
 	/* used by dmae command loader */
 	struct dmae_command	stats_dmae;
@@ -1935,8 +1935,6 @@ struct bnx2x {
 
 	int fp_array_size;
 	u32 dump_preset_idx;
-	bool					stats_started;
-	struct semaphore			stats_sema;
 
 	u8					phys_port_id[ETH_ALEN];
 
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index 7155e1d..1ec635f 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -129,8 +129,8 @@ struct bnx2x_mac_vals {
 	u32 xmac_val;
 	u32 emac_addr;
 	u32 emac_val;
-	u32 umac_addr;
-	u32 umac_val;
+	u32 umac_addr[2];
+	u32 umac_val[2];
 	u32 bmac_addr;
 	u32 bmac_val[2];
 };
@@ -7866,6 +7866,20 @@ int bnx2x_init_hw_func_cnic(struct bnx2x *bp)
 	return 0;
 }
 
+/* previous driver DMAE transaction may have occurred when pre-boot stage ended
+ * and boot began, or when kdump kernel was loaded. Either case would invalidate
+ * the addresses of the transaction, resulting in was-error bit set in the pci
+ * causing all hw-to-host pcie transactions to timeout. If this happened we want
+ * to clear the interrupt which detected this from the pglueb and the was done
+ * bit
+ */
+static void bnx2x_clean_pglue_errors(struct bnx2x *bp)
+{
+	if (!CHIP_IS_E1x(bp))
+		REG_WR(bp, PGLUE_B_REG_WAS_ERROR_PF_7_0_CLR,
+		       1 << BP_ABS_FUNC(bp));
+}
+
 static int bnx2x_init_hw_func(struct bnx2x *bp)
 {
 	int port = BP_PORT(bp);
@@ -7958,8 +7972,7 @@ static int bnx2x_init_hw_func(struct bnx2x *bp)
 
 	bnx2x_init_block(bp, BLOCK_PGLUE_B, init_phase);
 
-	if (!CHIP_IS_E1x(bp))
-		REG_WR(bp, PGLUE_B_REG_WAS_ERROR_PF_7_0_CLR, func);
+	bnx2x_clean_pglue_errors(bp);
 
 	bnx2x_init_block(bp, BLOCK_ATC, init_phase);
 	bnx2x_init_block(bp, BLOCK_DMAE, init_phase);
@@ -10141,6 +10154,25 @@ static u32 bnx2x_get_pretend_reg(struct bnx2x *bp)
 	return base + (BP_ABS_FUNC(bp)) * stride;
 }
 
+static bool bnx2x_prev_unload_close_umac(struct bnx2x *bp,
+					 u8 port, u32 reset_reg,
+					 struct bnx2x_mac_vals *vals)
+{
+	u32 mask = MISC_REGISTERS_RESET_REG_2_UMAC0 << port;
+	u32 base_addr;
+
+	if (!(mask & reset_reg))
+		return false;
+
+	BNX2X_DEV_INFO("Disable umac Rx %02x\n", port);
+	base_addr = port ? GRCBASE_UMAC1 : GRCBASE_UMAC0;
+	vals->umac_addr[port] = base_addr + UMAC_REG_COMMAND_CONFIG;
+	vals->umac_val[port] = REG_RD(bp, vals->umac_addr[port]);
+	REG_WR(bp, vals->umac_addr[port], 0);
+
+	return true;
+}
+
 static void bnx2x_prev_unload_close_mac(struct bnx2x *bp,
 					struct bnx2x_mac_vals *vals)
 {
@@ -10149,10 +10181,7 @@ static void bnx2x_prev_unload_close_mac(struct bnx2x *bp,
 	u8 port = BP_PORT(bp);
 
 	/* reset addresses as they also mark which values were changed */
-	vals->bmac_addr = 0;
-	vals->umac_addr = 0;
-	vals->xmac_addr = 0;
-	vals->emac_addr = 0;
+	memset(vals, 0, sizeof(*vals));
 
 	reset_reg = REG_RD(bp, MISC_REG_RESET_REG_2);
 
@@ -10201,15 +10230,11 @@ static void bnx2x_prev_unload_close_mac(struct bnx2x *bp,
 			REG_WR(bp, vals->xmac_addr, 0);
 			mac_stopped = true;
 		}
-		mask = MISC_REGISTERS_RESET_REG_2_UMAC0 << port;
-		if (mask & reset_reg) {
-			BNX2X_DEV_INFO("Disable umac Rx\n");
-			base_addr = BP_PORT(bp) ? GRCBASE_UMAC1 : GRCBASE_UMAC0;
-			vals->umac_addr = base_addr + UMAC_REG_COMMAND_CONFIG;
-			vals->umac_val = REG_RD(bp, vals->umac_addr);
-			REG_WR(bp, vals->umac_addr, 0);
-			mac_stopped = true;
-		}
+
+		mac_stopped |= bnx2x_prev_unload_close_umac(bp, 0,
+							    reset_reg, vals);
+		mac_stopped |= bnx2x_prev_unload_close_umac(bp, 1,
+							    reset_reg, vals);
 	}
 
 	if (mac_stopped)
@@ -10505,8 +10530,11 @@ static int bnx2x_prev_unload_common(struct bnx2x *bp)
 		/* Close the MAC Rx to prevent BRB from filling up */
 		bnx2x_prev_unload_close_mac(bp, &mac_vals);
 
-		/* close LLH filters towards the BRB */
+		/* close LLH filters for both ports towards the BRB */
+		bnx2x_set_rx_filter(&bp->link_params, 0);
+		bp->link_params.port ^= 1;
 		bnx2x_set_rx_filter(&bp->link_params, 0);
+		bp->link_params.port ^= 1;
 
 		/* Check if the UNDI driver was previously loaded */
 		if (bnx2x_prev_is_after_undi(bp)) {
@@ -10553,8 +10581,10 @@ static int bnx2x_prev_unload_common(struct bnx2x *bp)
 
 	if (mac_vals.xmac_addr)
 		REG_WR(bp, mac_vals.xmac_addr, mac_vals.xmac_val);
-	if (mac_vals.umac_addr)
-		REG_WR(bp, mac_vals.umac_addr, mac_vals.umac_val);
+	if (mac_vals.umac_addr[0])
+		REG_WR(bp, mac_vals.umac_addr[0], mac_vals.umac_val[0]);
+	if (mac_vals.umac_addr[1])
+		REG_WR(bp, mac_vals.umac_addr[1], mac_vals.umac_val[1]);
 	if (mac_vals.emac_addr)
 		REG_WR(bp, mac_vals.emac_addr, mac_vals.emac_val);
 	if (mac_vals.bmac_addr) {
@@ -10571,26 +10601,6 @@ static int bnx2x_prev_unload_common(struct bnx2x *bp)
 	return bnx2x_prev_mcp_done(bp);
 }
 
-/* previous driver DMAE transaction may have occurred when pre-boot stage ended
- * and boot began, or when kdump kernel was loaded. Either case would invalidate
- * the addresses of the transaction, resulting in was-error bit set in the pci
- * causing all hw-to-host pcie transactions to timeout. If this happened we want
- * to clear the interrupt which detected this from the pglueb and the was done
- * bit
- */
-static void bnx2x_prev_interrupted_dmae(struct bnx2x *bp)
-{
-	if (!CHIP_IS_E1x(bp)) {
-		u32 val = REG_RD(bp, PGLUE_B_REG_PGLUE_B_INT_STS);
-		if (val & PGLUE_B_PGLUE_B_INT_STS_REG_WAS_ERROR_ATTN) {
-			DP(BNX2X_MSG_SP,
-			   "'was error' bit was found to be set in pglueb upon startup. Clearing\n");
-			REG_WR(bp, PGLUE_B_REG_WAS_ERROR_PF_7_0_CLR,
-			       1 << BP_FUNC(bp));
-		}
-	}
-}
-
 static int bnx2x_prev_unload(struct bnx2x *bp)
 {
 	int time_counter = 10;
@@ -10600,7 +10610,7 @@ static int bnx2x_prev_unload(struct bnx2x *bp)
 	/* clear hw from errors which may have resulted from an interrupted
 	 * dmae transaction.
 	 */
-	bnx2x_prev_interrupted_dmae(bp);
+	bnx2x_clean_pglue_errors(bp);
 
 	/* Release previously held locks */
 	hw_lock_reg = (BP_FUNC(bp) <= 5) ?
@@ -12037,9 +12047,8 @@ static int bnx2x_init_bp(struct bnx2x *bp)
 	mutex_init(&bp->port.phy_mutex);
 	mutex_init(&bp->fw_mb_mutex);
 	mutex_init(&bp->drv_info_mutex);
+	mutex_init(&bp->stats_lock);
 	bp->drv_info_mng_owner = false;
-	spin_lock_init(&bp->stats_lock);
-	sema_init(&bp->stats_sema, 1);
 
 	INIT_DELAYED_WORK(&bp->sp_task, bnx2x_sp_task);
 	INIT_DELAYED_WORK(&bp->sp_rtnl_task, bnx2x_sp_rtnl_task);
@@ -12722,6 +12731,9 @@ static int bnx2x_init_dev(struct bnx2x *bp, struct pci_dev *pdev,
 	pci_write_config_dword(bp->pdev, PCICFG_GRC_ADDRESS,
 			       PCICFG_VENDOR_ID_OFFSET);
 
+	/* Set PCIe reset type to fundamental for EEH recovery */
+	pdev->needs_freset = 1;
+
 	/* AER (Advanced Error reporting) configuration */
 	rc = pci_enable_pcie_error_reporting(pdev);
 	if (!rc)
@@ -12766,7 +12778,7 @@ static int bnx2x_init_dev(struct bnx2x *bp, struct pci_dev *pdev,
 		NETIF_F_TSO | NETIF_F_TSO_ECN | NETIF_F_TSO6 |
 		NETIF_F_RXCSUM | NETIF_F_LRO | NETIF_F_GRO |
 		NETIF_F_RXHASH | NETIF_F_HW_VLAN_CTAG_TX;
-	if (!CHIP_IS_E1x(bp)) {
+	if (!chip_is_e1x) {
 		dev->hw_features |= NETIF_F_GSO_GRE | NETIF_F_GSO_UDP_TUNNEL |
 				    NETIF_F_GSO_IPIP | NETIF_F_GSO_SIT;
 		dev->hw_enc_features =
@@ -13665,9 +13677,9 @@ static int bnx2x_eeh_nic_unload(struct bnx2x *bp)
 	cancel_delayed_work_sync(&bp->sp_task);
 	cancel_delayed_work_sync(&bp->period_task);
 
-	spin_lock_bh(&bp->stats_lock);
+	mutex_lock(&bp->stats_lock);
 	bp->stats_state = STATS_STATE_DISABLED;
-	spin_unlock_bh(&bp->stats_lock);
+	mutex_unlock(&bp->stats_lock);
 
 	bnx2x_save_statistics(bp);
 
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
index e5aca2d..cfe3c769 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
@@ -2238,7 +2238,9 @@ int bnx2x_vf_close(struct bnx2x *bp, struct bnx2x_virtf *vf)
 
 		cookie.vf = vf;
 		cookie.state = VF_ACQUIRED;
-		bnx2x_stats_safe_exec(bp, bnx2x_set_vf_state, &cookie);
+		rc = bnx2x_stats_safe_exec(bp, bnx2x_set_vf_state, &cookie);
+		if (rc)
+			goto op_err;
 	}
 
 	DP(BNX2X_MSG_IOV, "set state to acquired\n");
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.c
index d160829..800ab44 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.c
@@ -123,36 +123,28 @@ static void bnx2x_dp_stats(struct bnx2x *bp)
  */
 static void bnx2x_storm_stats_post(struct bnx2x *bp)
 {
-	if (!bp->stats_pending) {
-		int rc;
+	int rc;
 
-		spin_lock_bh(&bp->stats_lock);
-
-		if (bp->stats_pending) {
-			spin_unlock_bh(&bp->stats_lock);
-			return;
-		}
-
-		bp->fw_stats_req->hdr.drv_stats_counter =
-			cpu_to_le16(bp->stats_counter++);
+	if (bp->stats_pending)
+		return;
 
-		DP(BNX2X_MSG_STATS, "Sending statistics ramrod %d\n",
-		   le16_to_cpu(bp->fw_stats_req->hdr.drv_stats_counter));
+	bp->fw_stats_req->hdr.drv_stats_counter =
+		cpu_to_le16(bp->stats_counter++);
 
-		/* adjust the ramrod to include VF queues statistics */
-		bnx2x_iov_adjust_stats_req(bp);
-		bnx2x_dp_stats(bp);
+	DP(BNX2X_MSG_STATS, "Sending statistics ramrod %d\n",
+	   le16_to_cpu(bp->fw_stats_req->hdr.drv_stats_counter));
 
-		/* send FW stats ramrod */
-		rc = bnx2x_sp_post(bp, RAMROD_CMD_ID_COMMON_STAT_QUERY, 0,
-				   U64_HI(bp->fw_stats_req_mapping),
-				   U64_LO(bp->fw_stats_req_mapping),
-				   NONE_CONNECTION_TYPE);
-		if (rc == 0)
-			bp->stats_pending = 1;
+	/* adjust the ramrod to include VF queues statistics */
+	bnx2x_iov_adjust_stats_req(bp);
+	bnx2x_dp_stats(bp);
 
-		spin_unlock_bh(&bp->stats_lock);
-	}
+	/* send FW stats ramrod */
+	rc = bnx2x_sp_post(bp, RAMROD_CMD_ID_COMMON_STAT_QUERY, 0,
+			   U64_HI(bp->fw_stats_req_mapping),
+			   U64_LO(bp->fw_stats_req_mapping),
+			   NONE_CONNECTION_TYPE);
+	if (rc == 0)
+		bp->stats_pending = 1;
 }
 
 static void bnx2x_hw_stats_post(struct bnx2x *bp)
@@ -221,7 +213,7 @@ static void bnx2x_stats_comp(struct bnx2x *bp)
  */
 
 /* should be called under stats_sema */
-static void __bnx2x_stats_pmf_update(struct bnx2x *bp)
+static void bnx2x_stats_pmf_update(struct bnx2x *bp)
 {
 	struct dmae_command *dmae;
 	u32 opcode;
@@ -519,7 +511,7 @@ static void bnx2x_func_stats_init(struct bnx2x *bp)
 }
 
 /* should be called under stats_sema */
-static void __bnx2x_stats_start(struct bnx2x *bp)
+static void bnx2x_stats_start(struct bnx2x *bp)
 {
 	if (IS_PF(bp)) {
 		if (bp->port.pmf)
@@ -531,34 +523,13 @@ static void __bnx2x_stats_start(struct bnx2x *bp)
 		bnx2x_hw_stats_post(bp);
 		bnx2x_storm_stats_post(bp);
 	}
-
-	bp->stats_started = true;
-}
-
-static void bnx2x_stats_start(struct bnx2x *bp)
-{
-	if (down_timeout(&bp->stats_sema, HZ/10))
-		BNX2X_ERR("Unable to acquire stats lock\n");
-	__bnx2x_stats_start(bp);
-	up(&bp->stats_sema);
 }
 
 static void bnx2x_stats_pmf_start(struct bnx2x *bp)
 {
-	if (down_timeout(&bp->stats_sema, HZ/10))
-		BNX2X_ERR("Unable to acquire stats lock\n");
 	bnx2x_stats_comp(bp);
-	__bnx2x_stats_pmf_update(bp);
-	__bnx2x_stats_start(bp);
-	up(&bp->stats_sema);
-}
-
-static void bnx2x_stats_pmf_update(struct bnx2x *bp)
-{
-	if (down_timeout(&bp->stats_sema, HZ/10))
-		BNX2X_ERR("Unable to acquire stats lock\n");
-	__bnx2x_stats_pmf_update(bp);
-	up(&bp->stats_sema);
+	bnx2x_stats_pmf_update(bp);
+	bnx2x_stats_start(bp);
 }
 
 static void bnx2x_stats_restart(struct bnx2x *bp)
@@ -568,11 +539,9 @@ static void bnx2x_stats_restart(struct bnx2x *bp)
 	 */
 	if (IS_VF(bp))
 		return;
-	if (down_timeout(&bp->stats_sema, HZ/10))
-		BNX2X_ERR("Unable to acquire stats lock\n");
+
 	bnx2x_stats_comp(bp);
-	__bnx2x_stats_start(bp);
-	up(&bp->stats_sema);
+	bnx2x_stats_start(bp);
 }
 
 static void bnx2x_bmac_stats_update(struct bnx2x *bp)
@@ -1246,18 +1215,12 @@ static void bnx2x_stats_update(struct bnx2x *bp)
 {
 	u32 *stats_comp = bnx2x_sp(bp, stats_comp);
 
-	/* we run update from timer context, so give up
-	 * if somebody is in the middle of transition
-	 */
-	if (down_trylock(&bp->stats_sema))
+	if (bnx2x_edebug_stats_stopped(bp))
 		return;
 
-	if (bnx2x_edebug_stats_stopped(bp) || !bp->stats_started)
-		goto out;
-
 	if (IS_PF(bp)) {
 		if (*stats_comp != DMAE_COMP_VAL)
-			goto out;
+			return;
 
 		if (bp->port.pmf)
 			bnx2x_hw_stats_update(bp);
@@ -1267,7 +1230,7 @@ static void bnx2x_stats_update(struct bnx2x *bp)
 				BNX2X_ERR("storm stats were not updated for 3 times\n");
 				bnx2x_panic();
 			}
-			goto out;
+			return;
 		}
 	} else {
 		/* vf doesn't collect HW statistics, and doesn't get completions
@@ -1281,7 +1244,7 @@ static void bnx2x_stats_update(struct bnx2x *bp)
 
 	/* vf is done */
 	if (IS_VF(bp))
-		goto out;
+		return;
 
 	if (netif_msg_timer(bp)) {
 		struct bnx2x_eth_stats *estats = &bp->eth_stats;
@@ -1292,9 +1255,6 @@ static void bnx2x_stats_update(struct bnx2x *bp)
 
 	bnx2x_hw_stats_post(bp);
 	bnx2x_storm_stats_post(bp);
-
-out:
-	up(&bp->stats_sema);
 }
 
 static void bnx2x_port_stats_stop(struct bnx2x *bp)
@@ -1358,12 +1318,7 @@ static void bnx2x_port_stats_stop(struct bnx2x *bp)
 
 static void bnx2x_stats_stop(struct bnx2x *bp)
 {
-	int update = 0;
-
-	if (down_timeout(&bp->stats_sema, HZ/10))
-		BNX2X_ERR("Unable to acquire stats lock\n");
-
-	bp->stats_started = false;
+	bool update = false;
 
 	bnx2x_stats_comp(bp);
 
@@ -1381,8 +1336,6 @@ static void bnx2x_stats_stop(struct bnx2x *bp)
 		bnx2x_hw_stats_post(bp);
 		bnx2x_stats_comp(bp);
 	}
-
-	up(&bp->stats_sema);
 }
 
 static void bnx2x_stats_do_nothing(struct bnx2x *bp)
@@ -1410,18 +1363,28 @@ static const struct {
 
 void bnx2x_stats_handle(struct bnx2x *bp, enum bnx2x_stats_event event)
 {
-	enum bnx2x_stats_state state;
-	void (*action)(struct bnx2x *bp);
+	enum bnx2x_stats_state state = bp->stats_state;
+
 	if (unlikely(bp->panic))
 		return;
 
-	spin_lock_bh(&bp->stats_lock);
-	state = bp->stats_state;
+	/* Statistics update run from timer context, and we don't want to stop
+	 * that context in case someone is in the middle of a transition.
+	 * For other events, wait a bit until lock is taken.
+	 */
+	if (!mutex_trylock(&bp->stats_lock)) {
+		if (event == STATS_EVENT_UPDATE)
+			return;
+
+		DP(BNX2X_MSG_STATS,
+		   "Unlikely stats' lock contention [event %d]\n", event);
+		mutex_lock(&bp->stats_lock);
+	}
+
+	bnx2x_stats_stm[state][event].action(bp);
 	bp->stats_state = bnx2x_stats_stm[state][event].next_state;
-	action = bnx2x_stats_stm[state][event].action;
-	spin_unlock_bh(&bp->stats_lock);
 
-	action(bp);
+	mutex_unlock(&bp->stats_lock);
 
 	if ((event != STATS_EVENT_UPDATE) || netif_msg_timer(bp))
 		DP(BNX2X_MSG_STATS, "state %d -> event %d -> state %d\n",
@@ -1998,13 +1961,34 @@ void bnx2x_afex_collect_stats(struct bnx2x *bp, void *void_afex_stats,
 	}
 }
 
-void bnx2x_stats_safe_exec(struct bnx2x *bp,
-			   void (func_to_exec)(void *cookie),
-			   void *cookie){
-	if (down_timeout(&bp->stats_sema, HZ/10))
-		BNX2X_ERR("Unable to acquire stats lock\n");
+int bnx2x_stats_safe_exec(struct bnx2x *bp,
+			  void (func_to_exec)(void *cookie),
+			  void *cookie)
+{
+	int cnt = 10, rc = 0;
+
+	/* Wait for statistics to end [while blocking further requests],
+	 * then run supplied function 'safely'.
+	 */
+	mutex_lock(&bp->stats_lock);
+
 	bnx2x_stats_comp(bp);
+	while (bp->stats_pending && cnt--)
+		if (bnx2x_storm_stats_update(bp))
+			usleep_range(1000, 2000);
+	if (bp->stats_pending) {
+		BNX2X_ERR("Failed to wait for stats pending to clear [possibly FW is stuck]\n");
+		rc = -EBUSY;
+		goto out;
+	}
+
 	func_to_exec(cookie);
-	__bnx2x_stats_start(bp);
-	up(&bp->stats_sema);
+
+out:
+	/* No need to restart statistics - if they're enabled, the timer
+	 * will restart the statistics.
+	 */
+	mutex_unlock(&bp->stats_lock);
+
+	return rc;
 }
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.h
index 2beceae..965539a 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.h
@@ -539,9 +539,9 @@ struct bnx2x;
 void bnx2x_memset_stats(struct bnx2x *bp);
 void bnx2x_stats_init(struct bnx2x *bp);
 void bnx2x_stats_handle(struct bnx2x *bp, enum bnx2x_stats_event event);
-void bnx2x_stats_safe_exec(struct bnx2x *bp,
-			   void (func_to_exec)(void *cookie),
-			   void *cookie);
+int bnx2x_stats_safe_exec(struct bnx2x *bp,
+			  void (func_to_exec)(void *cookie),
+			  void *cookie);
 
 /**
  * bnx2x_save_statistics - save statistics when unloading.
diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet.c b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
index ff83c46b..6befde6 100644
--- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c
+++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
@@ -487,6 +487,7 @@ enum bcmgenet_stat_type {
 	BCMGENET_STAT_MIB_TX,
 	BCMGENET_STAT_RUNT,
 	BCMGENET_STAT_MISC,
+	BCMGENET_STAT_SOFT,
 };
 
 struct bcmgenet_stats {
@@ -515,6 +516,7 @@ struct bcmgenet_stats {
 #define STAT_GENET_MIB_RX(str, m) STAT_GENET_MIB(str, m, BCMGENET_STAT_MIB_RX)
 #define STAT_GENET_MIB_TX(str, m) STAT_GENET_MIB(str, m, BCMGENET_STAT_MIB_TX)
 #define STAT_GENET_RUNT(str, m) STAT_GENET_MIB(str, m, BCMGENET_STAT_RUNT)
+#define STAT_GENET_SOFT_MIB(str, m) STAT_GENET_MIB(str, m, BCMGENET_STAT_SOFT)
 
 #define STAT_GENET_MISC(str, m, offset) { \
 	.stat_string = str, \
@@ -614,9 +616,9 @@ static const struct bcmgenet_stats bcmgenet_gstrings_stats[] = {
 			UMAC_RBUF_OVFL_CNT),
 	STAT_GENET_MISC("rbuf_err_cnt", mib.rbuf_err_cnt, UMAC_RBUF_ERR_CNT),
 	STAT_GENET_MISC("mdf_err_cnt", mib.mdf_err_cnt, UMAC_MDF_ERR_CNT),
-	STAT_GENET_MIB_RX("alloc_rx_buff_failed", mib.alloc_rx_buff_failed),
-	STAT_GENET_MIB_RX("rx_dma_failed", mib.rx_dma_failed),
-	STAT_GENET_MIB_TX("tx_dma_failed", mib.tx_dma_failed),
+	STAT_GENET_SOFT_MIB("alloc_rx_buff_failed", mib.alloc_rx_buff_failed),
+	STAT_GENET_SOFT_MIB("rx_dma_failed", mib.rx_dma_failed),
+	STAT_GENET_SOFT_MIB("tx_dma_failed", mib.tx_dma_failed),
 };
 
 #define BCMGENET_STATS_LEN	ARRAY_SIZE(bcmgenet_gstrings_stats)
@@ -668,6 +670,7 @@ static void bcmgenet_update_mib_counters(struct bcmgenet_priv *priv)
 		s = &bcmgenet_gstrings_stats[i];
 		switch (s->type) {
 		case BCMGENET_STAT_NETDEV:
+		case BCMGENET_STAT_SOFT:
 			continue;
 		case BCMGENET_STAT_MIB_RX:
 		case BCMGENET_STAT_MIB_TX:
@@ -971,13 +974,14 @@ static inline void bcmgenet_tx_ring_int_disable(struct bcmgenet_priv *priv,
 }
 
 /* Unlocked version of the reclaim routine */
-static void __bcmgenet_tx_reclaim(struct net_device *dev,
-				  struct bcmgenet_tx_ring *ring)
+static unsigned int __bcmgenet_tx_reclaim(struct net_device *dev,
+					  struct bcmgenet_tx_ring *ring)
 {
 	struct bcmgenet_priv *priv = netdev_priv(dev);
 	int last_tx_cn, last_c_index, num_tx_bds;
 	struct enet_cb *tx_cb_ptr;
 	struct netdev_queue *txq;
+	unsigned int pkts_compl = 0;
 	unsigned int bds_compl;
 	unsigned int c_index;
 
@@ -1005,6 +1009,7 @@ static void __bcmgenet_tx_reclaim(struct net_device *dev,
 		tx_cb_ptr = ring->cbs + last_c_index;
 		bds_compl = 0;
 		if (tx_cb_ptr->skb) {
+			pkts_compl++;
 			bds_compl = skb_shinfo(tx_cb_ptr->skb)->nr_frags + 1;
 			dev->stats.tx_bytes += tx_cb_ptr->skb->len;
 			dma_unmap_single(&dev->dev,
@@ -1028,23 +1033,45 @@ static void __bcmgenet_tx_reclaim(struct net_device *dev,
 		last_c_index &= (num_tx_bds - 1);
 	}
 
-	if (ring->free_bds > (MAX_SKB_FRAGS + 1))
-		ring->int_disable(priv, ring);
-
-	if (netif_tx_queue_stopped(txq))
-		netif_tx_wake_queue(txq);
+	if (ring->free_bds > (MAX_SKB_FRAGS + 1)) {
+		if (netif_tx_queue_stopped(txq))
+			netif_tx_wake_queue(txq);
+	}
 
 	ring->c_index = c_index;
+
+	return pkts_compl;
 }
 
-static void bcmgenet_tx_reclaim(struct net_device *dev,
+static unsigned int bcmgenet_tx_reclaim(struct net_device *dev,
 				struct bcmgenet_tx_ring *ring)
 {
+	unsigned int released;
 	unsigned long flags;
 
 	spin_lock_irqsave(&ring->lock, flags);
-	__bcmgenet_tx_reclaim(dev, ring);
+	released = __bcmgenet_tx_reclaim(dev, ring);
 	spin_unlock_irqrestore(&ring->lock, flags);
+
+	return released;
+}
+
+static int bcmgenet_tx_poll(struct napi_struct *napi, int budget)
+{
+	struct bcmgenet_tx_ring *ring =
+		container_of(napi, struct bcmgenet_tx_ring, napi);
+	unsigned int work_done = 0;
+
+	work_done = bcmgenet_tx_reclaim(ring->priv->dev, ring);
+
+	if (work_done == 0) {
+		napi_complete(napi);
+		ring->int_enable(ring->priv, ring);
+
+		return 0;
+	}
+
+	return budget;
 }
 
 static void bcmgenet_tx_reclaim_all(struct net_device *dev)
@@ -1302,10 +1329,8 @@ static netdev_tx_t bcmgenet_xmit(struct sk_buff *skb, struct net_device *dev)
 	bcmgenet_tdma_ring_writel(priv, ring->index,
 				  ring->prod_index, TDMA_PROD_INDEX);
 
-	if (ring->free_bds <= (MAX_SKB_FRAGS + 1)) {
+	if (ring->free_bds <= (MAX_SKB_FRAGS + 1))
 		netif_tx_stop_queue(txq);
-		ring->int_enable(priv, ring);
-	}
 
 out:
 	spin_unlock_irqrestore(&ring->lock, flags);
@@ -1621,6 +1646,7 @@ static int init_umac(struct bcmgenet_priv *priv)
 	struct device *kdev = &priv->pdev->dev;
 	int ret;
 	u32 reg, cpu_mask_clear;
+	int index;
 
 	dev_dbg(&priv->pdev->dev, "bcmgenet: init_umac\n");
 
@@ -1647,7 +1673,7 @@ static int init_umac(struct bcmgenet_priv *priv)
 
 	bcmgenet_intr_disable(priv);
 
-	cpu_mask_clear = UMAC_IRQ_RXDMA_BDONE;
+	cpu_mask_clear = UMAC_IRQ_RXDMA_BDONE | UMAC_IRQ_TXDMA_BDONE;
 
 	dev_dbg(kdev, "%s:Enabling RXDMA_BDONE interrupt\n", __func__);
 
@@ -1674,6 +1700,10 @@ static int init_umac(struct bcmgenet_priv *priv)
 
 	bcmgenet_intrl2_0_writel(priv, cpu_mask_clear, INTRL2_CPU_MASK_CLEAR);
 
+	for (index = 0; index < priv->hw_params->tx_queues; index++)
+		bcmgenet_intrl2_1_writel(priv, (1 << index),
+					 INTRL2_CPU_MASK_CLEAR);
+
 	/* Enable rx/tx engine.*/
 	dev_dbg(kdev, "done init umac\n");
 
@@ -1693,6 +1723,8 @@ static void bcmgenet_init_tx_ring(struct bcmgenet_priv *priv,
 	unsigned int first_bd;
 
 	spin_lock_init(&ring->lock);
+	ring->priv = priv;
+	netif_napi_add(priv->dev, &ring->napi, bcmgenet_tx_poll, 64);
 	ring->index = index;
 	if (index == DESC_INDEX) {
 		ring->queue = 0;
@@ -1738,6 +1770,17 @@ static void bcmgenet_init_tx_ring(struct bcmgenet_priv *priv,
 				  TDMA_WRITE_PTR);
 	bcmgenet_tdma_ring_writel(priv, index, end_ptr * words_per_bd - 1,
 				  DMA_END_ADDR);
+
+	napi_enable(&ring->napi);
+}
+
+static void bcmgenet_fini_tx_ring(struct bcmgenet_priv *priv,
+				  unsigned int index)
+{
+	struct bcmgenet_tx_ring *ring = &priv->tx_rings[index];
+
+	napi_disable(&ring->napi);
+	netif_napi_del(&ring->napi);
 }
 
 /* Initialize a RDMA ring */
@@ -1907,7 +1950,7 @@ static int bcmgenet_dma_teardown(struct bcmgenet_priv *priv)
 	return ret;
 }
 
-static void bcmgenet_fini_dma(struct bcmgenet_priv *priv)
+static void __bcmgenet_fini_dma(struct bcmgenet_priv *priv)
 {
 	int i;
 
@@ -1926,6 +1969,18 @@ static void bcmgenet_fini_dma(struct bcmgenet_priv *priv)
 	kfree(priv->tx_cbs);
 }
 
+static void bcmgenet_fini_dma(struct bcmgenet_priv *priv)
+{
+	int i;
+
+	bcmgenet_fini_tx_ring(priv, DESC_INDEX);
+
+	for (i = 0; i < priv->hw_params->tx_queues; i++)
+		bcmgenet_fini_tx_ring(priv, i);
+
+	__bcmgenet_fini_dma(priv);
+}
+
 /* init_edma: Initialize DMA control register */
 static int bcmgenet_init_dma(struct bcmgenet_priv *priv)
 {
@@ -1952,7 +2007,7 @@ static int bcmgenet_init_dma(struct bcmgenet_priv *priv)
 	priv->tx_cbs = kcalloc(priv->num_tx_bds, sizeof(struct enet_cb),
 			       GFP_KERNEL);
 	if (!priv->tx_cbs) {
-		bcmgenet_fini_dma(priv);
+		__bcmgenet_fini_dma(priv);
 		return -ENOMEM;
 	}
 
@@ -1975,9 +2030,6 @@ static int bcmgenet_poll(struct napi_struct *napi, int budget)
 			struct bcmgenet_priv, napi);
 	unsigned int work_done;
 
-	/* tx reclaim */
-	bcmgenet_tx_reclaim(priv->dev, &priv->tx_rings[DESC_INDEX]);
-
 	work_done = bcmgenet_desc_rx(priv, budget);
 
 	/* Advancing our consumer index*/
@@ -2022,28 +2074,34 @@ static void bcmgenet_irq_task(struct work_struct *work)
 static irqreturn_t bcmgenet_isr1(int irq, void *dev_id)
 {
 	struct bcmgenet_priv *priv = dev_id;
+	struct bcmgenet_tx_ring *ring;
 	unsigned int index;
 
 	/* Save irq status for bottom-half processing. */
 	priv->irq1_stat =
 		bcmgenet_intrl2_1_readl(priv, INTRL2_CPU_STAT) &
-		~priv->int1_mask;
+		~bcmgenet_intrl2_1_readl(priv, INTRL2_CPU_MASK_STATUS);
 	/* clear interrupts */
 	bcmgenet_intrl2_1_writel(priv, priv->irq1_stat, INTRL2_CPU_CLEAR);
 
 	netif_dbg(priv, intr, priv->dev,
 		  "%s: IRQ=0x%x\n", __func__, priv->irq1_stat);
+
 	/* Check the MBDONE interrupts.
 	 * packet is done, reclaim descriptors
 	 */
-	if (priv->irq1_stat & 0x0000ffff) {
-		index = 0;
-		for (index = 0; index < 16; index++) {
-			if (priv->irq1_stat & (1 << index))
-				bcmgenet_tx_reclaim(priv->dev,
-						    &priv->tx_rings[index]);
+	for (index = 0; index < priv->hw_params->tx_queues; index++) {
+		if (!(priv->irq1_stat & BIT(index)))
+			continue;
+
+		ring = &priv->tx_rings[index];
+
+		if (likely(napi_schedule_prep(&ring->napi))) {
+			ring->int_disable(priv, ring);
+			__napi_schedule(&ring->napi);
 		}
 	}
+
 	return IRQ_HANDLED;
 }
 
@@ -2075,8 +2133,12 @@ static irqreturn_t bcmgenet_isr0(int irq, void *dev_id)
 	}
 	if (priv->irq0_stat &
 			(UMAC_IRQ_TXDMA_BDONE | UMAC_IRQ_TXDMA_PDONE)) {
-		/* Tx reclaim */
-		bcmgenet_tx_reclaim(priv->dev, &priv->tx_rings[DESC_INDEX]);
+		struct bcmgenet_tx_ring *ring = &priv->tx_rings[DESC_INDEX];
+
+		if (likely(napi_schedule_prep(&ring->napi))) {
+			ring->int_disable(priv, ring);
+			__napi_schedule(&ring->napi);
+		}
 	}
 	if (priv->irq0_stat & (UMAC_IRQ_PHY_DET_R |
 				UMAC_IRQ_PHY_DET_F |
diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet.h b/drivers/net/ethernet/broadcom/genet/bcmgenet.h
index b36ddec..0d370d1 100644
--- a/drivers/net/ethernet/broadcom/genet/bcmgenet.h
+++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.h
@@ -520,6 +520,7 @@ struct bcmgenet_hw_params {
 
 struct bcmgenet_tx_ring {
 	spinlock_t	lock;		/* ring lock */
+	struct napi_struct napi;	/* NAPI per tx queue */
 	unsigned int	index;		/* ring index */
 	unsigned int	queue;		/* queue index */
 	struct enet_cb	*cbs;		/* tx ring buffer control block*/
@@ -534,6 +535,7 @@ struct bcmgenet_tx_ring {
 			   struct bcmgenet_tx_ring *);
 	void (*int_disable)(struct bcmgenet_priv *priv,
 			    struct bcmgenet_tx_ring *);
+	struct bcmgenet_priv *priv;
 };
 
 /* device context */
diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet_wol.c b/drivers/net/ethernet/broadcom/genet/bcmgenet_wol.c
index 149a0d7..b971229 100644
--- a/drivers/net/ethernet/broadcom/genet/bcmgenet_wol.c
+++ b/drivers/net/ethernet/broadcom/genet/bcmgenet_wol.c
@@ -73,15 +73,17 @@ int bcmgenet_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
 	if (wol->wolopts & ~(WAKE_MAGIC | WAKE_MAGICSECURE))
 		return -EINVAL;
 
+	reg = bcmgenet_umac_readl(priv, UMAC_MPD_CTRL);
 	if (wol->wolopts & WAKE_MAGICSECURE) {
 		bcmgenet_umac_writel(priv, get_unaligned_be16(&wol->sopass[0]),
 				     UMAC_MPD_PW_MS);
 		bcmgenet_umac_writel(priv, get_unaligned_be32(&wol->sopass[2]),
 				     UMAC_MPD_PW_LS);
-		reg = bcmgenet_umac_readl(priv, UMAC_MPD_CTRL);
 		reg |= MPD_PW_EN;
-		bcmgenet_umac_writel(priv, reg, UMAC_MPD_CTRL);
+	} else {
+		reg &= ~MPD_PW_EN;
 	}
+	bcmgenet_umac_writel(priv, reg, UMAC_MPD_CTRL);
 
 	/* Flag the device and relevant IRQ as wakeup capable */
 	if (wol->wolopts) {
diff --git a/drivers/net/ethernet/cadence/macb.c b/drivers/net/ethernet/cadence/macb.c
index ad76b8e..81d4153 100644
--- a/drivers/net/ethernet/cadence/macb.c
+++ b/drivers/net/ethernet/cadence/macb.c
@@ -2113,17 +2113,17 @@ static const struct net_device_ops macb_netdev_ops = {
 };
 
 #if defined(CONFIG_OF)
-static struct macb_config pc302gem_config = {
+static const struct macb_config pc302gem_config = {
 	.caps = MACB_CAPS_SG_DISABLED | MACB_CAPS_GIGABIT_MODE_AVAILABLE,
 	.dma_burst_length = 16,
 };
 
-static struct macb_config sama5d3_config = {
+static const struct macb_config sama5d3_config = {
 	.caps = MACB_CAPS_SG_DISABLED | MACB_CAPS_GIGABIT_MODE_AVAILABLE,
 	.dma_burst_length = 16,
 };
 
-static struct macb_config sama5d4_config = {
+static const struct macb_config sama5d4_config = {
 	.caps = 0,
 	.dma_burst_length = 4,
 };
@@ -2154,7 +2154,7 @@ static void macb_configure_caps(struct macb *bp)
 	if (bp->pdev->dev.of_node) {
 		match = of_match_node(macb_dt_ids, bp->pdev->dev.of_node);
 		if (match && match->data) {
-			config = (const struct macb_config *)match->data;
+			config = match->data;
 
 			bp->caps = config->caps;
 			/*
diff --git a/drivers/net/ethernet/cadence/macb.h b/drivers/net/ethernet/cadence/macb.h
index 31dc080..ff85619 100644
--- a/drivers/net/ethernet/cadence/macb.h
+++ b/drivers/net/ethernet/cadence/macb.h
@@ -351,7 +351,7 @@
 
 /* Bitfields in MID */
 #define MACB_IDNUM_OFFSET			16
-#define MACB_IDNUM_SIZE				16
+#define MACB_IDNUM_SIZE				12
 #define MACB_REV_OFFSET				0
 #define MACB_REV_SIZE				16
 
diff --git a/drivers/net/ethernet/chelsio/cxgb4/clip_tbl.c b/drivers/net/ethernet/chelsio/cxgb4/clip_tbl.c
index 9062a84..c308429 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/clip_tbl.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/clip_tbl.c
@@ -35,10 +35,10 @@ static inline unsigned int ipv6_clip_hash(struct clip_tbl *d, const u32 *key)
 }
 
 static unsigned int clip_addr_hash(struct clip_tbl *ctbl, const u32 *addr,
-				   int addr_len)
+				   u8 v6)
 {
-	return addr_len == 4 ? ipv4_clip_hash(ctbl, addr) :
-				ipv6_clip_hash(ctbl, addr);
+	return v6 ? ipv6_clip_hash(ctbl, addr) :
+			ipv4_clip_hash(ctbl, addr);
 }
 
 static int clip6_get_mbox(const struct net_device *dev,
@@ -78,23 +78,22 @@ int cxgb4_clip_get(const struct net_device *dev, const u32 *lip, u8 v6)
 	struct clip_entry *ce, *cte;
 	u32 *addr = (u32 *)lip;
 	int hash;
-	int addr_len;
-	int ret = 0;
+	int ret = -1;
 
 	if (!ctbl)
 		return 0;
 
-	if (v6)
-		addr_len = 16;
-	else
-		addr_len = 4;
-
-	hash = clip_addr_hash(ctbl, addr, addr_len);
+	hash = clip_addr_hash(ctbl, addr, v6);
 
 	read_lock_bh(&ctbl->lock);
 	list_for_each_entry(cte, &ctbl->hash_list[hash], list) {
-		if (addr_len == cte->addr_len &&
-		    memcmp(lip, cte->addr, cte->addr_len) == 0) {
+		if (cte->addr6.sin6_family == AF_INET6 && v6)
+			ret = memcmp(lip, cte->addr6.sin6_addr.s6_addr,
+				     sizeof(struct in6_addr));
+		else if (cte->addr.sin_family == AF_INET && !v6)
+			ret = memcmp(lip, (char *)(&cte->addr.sin_addr),
+				     sizeof(struct in_addr));
+		if (!ret) {
 			ce = cte;
 			read_unlock_bh(&ctbl->lock);
 			goto found;
@@ -111,15 +110,20 @@ int cxgb4_clip_get(const struct net_device *dev, const u32 *lip, u8 v6)
 		spin_lock_init(&ce->lock);
 		atomic_set(&ce->refcnt, 0);
 		atomic_dec(&ctbl->nfree);
-		ce->addr_len = addr_len;
-		memcpy(ce->addr, lip, addr_len);
 		list_add_tail(&ce->list, &ctbl->hash_list[hash]);
 		if (v6) {
+			ce->addr6.sin6_family = AF_INET6;
+			memcpy(ce->addr6.sin6_addr.s6_addr,
+			       lip, sizeof(struct in6_addr));
 			ret = clip6_get_mbox(dev, (const struct in6_addr *)lip);
 			if (ret) {
 				write_unlock_bh(&ctbl->lock);
 				return ret;
 			}
+		} else {
+			ce->addr.sin_family = AF_INET;
+			memcpy((char *)(&ce->addr.sin_addr), lip,
+			       sizeof(struct in_addr));
 		}
 	} else {
 		write_unlock_bh(&ctbl->lock);
@@ -140,19 +144,19 @@ void cxgb4_clip_release(const struct net_device *dev, const u32 *lip, u8 v6)
 	struct clip_entry *ce, *cte;
 	u32 *addr = (u32 *)lip;
 	int hash;
-	int addr_len;
-
-	if (v6)
-		addr_len = 16;
-	else
-		addr_len = 4;
+	int ret = -1;
 
-	hash = clip_addr_hash(ctbl, addr, addr_len);
+	hash = clip_addr_hash(ctbl, addr, v6);
 
 	read_lock_bh(&ctbl->lock);
 	list_for_each_entry(cte, &ctbl->hash_list[hash], list) {
-		if (addr_len == cte->addr_len &&
-		    memcmp(lip, cte->addr, cte->addr_len) == 0) {
+		if (cte->addr6.sin6_family == AF_INET6 && v6)
+			ret = memcmp(lip, cte->addr6.sin6_addr.s6_addr,
+				     sizeof(struct in6_addr));
+		else if (cte->addr.sin_family == AF_INET && !v6)
+			ret = memcmp(lip, (char *)(&cte->addr.sin_addr),
+				     sizeof(struct in_addr));
+		if (!ret) {
 			ce = cte;
 			read_unlock_bh(&ctbl->lock);
 			goto found;
@@ -249,10 +253,7 @@ int clip_tbl_show(struct seq_file *seq, void *v)
 	for (i = 0 ; i < ctbl->clipt_size;  ++i) {
 		list_for_each_entry(ce, &ctbl->hash_list[i], list) {
 			ip[0] = '\0';
-			if (ce->addr_len == 16)
-				sprintf(ip, "%pI6c", ce->addr);
-			else
-				sprintf(ip, "%pI4c", ce->addr);
+			sprintf(ip, "%pISc", &ce->addr);
 			seq_printf(seq, "%-25s   %u\n", ip,
 				   atomic_read(&ce->refcnt));
 		}
diff --git a/drivers/net/ethernet/chelsio/cxgb4/clip_tbl.h b/drivers/net/ethernet/chelsio/cxgb4/clip_tbl.h
index 2eaba01..35eb43c 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/clip_tbl.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/clip_tbl.h
@@ -14,8 +14,10 @@ struct clip_entry {
 	spinlock_t lock;	/* Hold while modifying clip reference */
 	atomic_t refcnt;
 	struct list_head list;
-	u32 addr[4];
-	int addr_len;
+	union {
+		struct sockaddr_in addr;
+		struct sockaddr_in6 addr6;
+	};
 };
 
 struct clip_tbl {
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
index d6cda17..c6ff489 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
@@ -376,8 +376,6 @@ enum {
 enum {
 	INGQ_EXTRAS = 2,        /* firmware event queue and */
 				/*   forwarded interrupts */
-	MAX_EGRQ = MAX_ETH_QSETS*2 + MAX_OFLD_QSETS*2
-		   + MAX_CTRL_QUEUES + MAX_RDMA_QUEUES + MAX_ISCSI_QUEUES,
 	MAX_INGQ = MAX_ETH_QSETS + MAX_OFLD_QSETS + MAX_RDMA_QUEUES
 		   + MAX_RDMA_CIQS + MAX_ISCSI_QUEUES + INGQ_EXTRAS,
 };
@@ -616,11 +614,13 @@ struct sge {
 	unsigned int idma_qid[2];   /* SGE IDMA Hung Ingress Queue ID */
 
 	unsigned int egr_start;
+	unsigned int egr_sz;
 	unsigned int ingr_start;
-	void *egr_map[MAX_EGRQ];    /* qid->queue egress queue map */
-	struct sge_rspq *ingr_map[MAX_INGQ]; /* qid->queue ingress queue map */
-	DECLARE_BITMAP(starving_fl, MAX_EGRQ);
-	DECLARE_BITMAP(txq_maperr, MAX_EGRQ);
+	unsigned int ingr_sz;
+	void **egr_map;    /* qid->queue egress queue map */
+	struct sge_rspq **ingr_map; /* qid->queue ingress queue map */
+	unsigned long *starving_fl;
+	unsigned long *txq_maperr;
 	struct timer_list rx_timer; /* refills starving FLs */
 	struct timer_list tx_timer; /* checks Tx queues */
 };
@@ -1103,7 +1103,7 @@ int t4_restart_aneg(struct adapter *adap, unsigned int mbox, unsigned int port);
 #define T4_MEMORY_WRITE	0
 #define T4_MEMORY_READ	1
 int t4_memory_rw(struct adapter *adap, int win, int mtype, u32 addr, u32 len,
-		 __be32 *buf, int dir);
+		 void *buf, int dir);
 static inline int t4_memory_write(struct adapter *adap, int mtype, u32 addr,
 				  u32 len, __be32 *buf)
 {
@@ -1136,6 +1136,8 @@ int cxgb4_t4_bar2_sge_qregs(struct adapter *adapter,
 
 unsigned int qtimer_val(const struct adapter *adap,
 			const struct sge_rspq *q);
+
+int t4_init_devlog_params(struct adapter *adapter);
 int t4_init_sge_params(struct adapter *adapter);
 int t4_init_tp_params(struct adapter *adap);
 int t4_filter_field_shift(const struct adapter *adap, int filter_sel);
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c
index 78854ce..dcb0479 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c
@@ -670,9 +670,13 @@ static int cctrl_tbl_show(struct seq_file *seq, void *v)
 		"0.9375" };
 
 	int i;
-	u16 incr[NMTUS][NCCTRL_WIN];
+	u16 (*incr)[NCCTRL_WIN];
 	struct adapter *adap = seq->private;
 
+	incr = kmalloc(sizeof(*incr) * NMTUS, GFP_KERNEL);
+	if (!incr)
+		return -ENOMEM;
+
 	t4_read_cong_tbl(adap, incr);
 
 	for (i = 0; i < NCCTRL_WIN; ++i) {
@@ -685,6 +689,8 @@ static int cctrl_tbl_show(struct seq_file *seq, void *v)
 			   adap->params.a_wnd[i],
 			   dec_fac[adap->params.b_wnd[i]]);
 	}
+
+	kfree(incr);
 	return 0;
 }
 
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
index a22cf93..d929951 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
@@ -920,7 +920,7 @@ static void quiesce_rx(struct adapter *adap)
 {
 	int i;
 
-	for (i = 0; i < ARRAY_SIZE(adap->sge.ingr_map); i++) {
+	for (i = 0; i < adap->sge.ingr_sz; i++) {
 		struct sge_rspq *q = adap->sge.ingr_map[i];
 
 		if (q && q->handler) {
@@ -934,6 +934,21 @@ static void quiesce_rx(struct adapter *adap)
 	}
 }
 
+/* Disable interrupt and napi handler */
+static void disable_interrupts(struct adapter *adap)
+{
+	if (adap->flags & FULL_INIT_DONE) {
+		t4_intr_disable(adap);
+		if (adap->flags & USING_MSIX) {
+			free_msix_queue_irqs(adap);
+			free_irq(adap->msix_info[0].vec, adap);
+		} else {
+			free_irq(adap->pdev->irq, adap);
+		}
+		quiesce_rx(adap);
+	}
+}
+
 /*
  * Enable NAPI scheduling and interrupt generation for all Rx queues.
  */
@@ -941,7 +956,7 @@ static void enable_rx(struct adapter *adap)
 {
 	int i;
 
-	for (i = 0; i < ARRAY_SIZE(adap->sge.ingr_map); i++) {
+	for (i = 0; i < adap->sge.ingr_sz; i++) {
 		struct sge_rspq *q = adap->sge.ingr_map[i];
 
 		if (!q)
@@ -970,8 +985,8 @@ static int setup_sge_queues(struct adapter *adap)
 	int err, msi_idx, i, j;
 	struct sge *s = &adap->sge;
 
-	bitmap_zero(s->starving_fl, MAX_EGRQ);
-	bitmap_zero(s->txq_maperr, MAX_EGRQ);
+	bitmap_zero(s->starving_fl, s->egr_sz);
+	bitmap_zero(s->txq_maperr, s->egr_sz);
 
 	if (adap->flags & USING_MSIX)
 		msi_idx = 1;         /* vector 0 is for non-queue interrupts */
@@ -983,6 +998,19 @@ static int setup_sge_queues(struct adapter *adap)
 		msi_idx = -((int)s->intrq.abs_id + 1);
 	}
 
+	/* NOTE: If you add/delete any Ingress/Egress Queue allocations in here,
+	 * don't forget to update the following which need to be
+	 * synchronized to and changes here.
+	 *
+	 * 1. The calculations of MAX_INGQ in cxgb4.h.
+	 *
+	 * 2. Update enable_msix/name_msix_vecs/request_msix_queue_irqs
+	 *    to accommodate any new/deleted Ingress Queues
+	 *    which need MSI-X Vectors.
+	 *
+	 * 3. Update sge_qinfo_show() to include information on the
+	 *    new/deleted queues.
+	 */
 	err = t4_sge_alloc_rxq(adap, &s->fw_evtq, true, adap->port[0],
 			       msi_idx, NULL, fwevtq_handler);
 	if (err) {
@@ -4244,19 +4272,12 @@ static int cxgb_up(struct adapter *adap)
 
 static void cxgb_down(struct adapter *adapter)
 {
-	t4_intr_disable(adapter);
 	cancel_work_sync(&adapter->tid_release_task);
 	cancel_work_sync(&adapter->db_full_task);
 	cancel_work_sync(&adapter->db_drop_task);
 	adapter->tid_release_task_busy = false;
 	adapter->tid_release_head = NULL;
 
-	if (adapter->flags & USING_MSIX) {
-		free_msix_queue_irqs(adapter);
-		free_irq(adapter->msix_info[0].vec, adapter);
-	} else
-		free_irq(adapter->pdev->irq, adapter);
-	quiesce_rx(adapter);
 	t4_sge_stop(adapter);
 	t4_free_sge_resources(adapter);
 	adapter->flags &= ~FULL_INIT_DONE;
@@ -4733,8 +4754,9 @@ static int adap_init1(struct adapter *adap, struct fw_caps_config_cmd *c)
 	if (ret < 0)
 		return ret;
 
-	ret = t4_cfg_pfvf(adap, adap->fn, adap->fn, 0, MAX_EGRQ, 64, MAX_INGQ,
-			  0, 0, 4, 0xf, 0xf, 16, FW_CMD_CAP_PF, FW_CMD_CAP_PF);
+	ret = t4_cfg_pfvf(adap, adap->fn, adap->fn, 0, adap->sge.egr_sz, 64,
+			  MAX_INGQ, 0, 0, 4, 0xf, 0xf, 16, FW_CMD_CAP_PF,
+			  FW_CMD_CAP_PF);
 	if (ret < 0)
 		return ret;
 
@@ -5088,10 +5110,15 @@ static int adap_init0(struct adapter *adap)
 	enum dev_state state;
 	u32 params[7], val[7];
 	struct fw_caps_config_cmd caps_cmd;
-	struct fw_devlog_cmd devlog_cmd;
-	u32 devlog_meminfo;
 	int reset = 1;
 
+	/* Grab Firmware Device Log parameters as early as possible so we have
+	 * access to it for debugging, etc.
+	 */
+	ret = t4_init_devlog_params(adap);
+	if (ret < 0)
+		return ret;
+
 	/* Contact FW, advertising Master capability */
 	ret = t4_fw_hello(adap, adap->mbox, adap->mbox, MASTER_MAY, &state);
 	if (ret < 0) {
@@ -5169,30 +5196,6 @@ static int adap_init0(struct adapter *adap)
 	if (ret < 0)
 		goto bye;
 
-	/* Read firmware device log parameters.  We really need to find a way
-	 * to get these parameters initialized with some default values (which
-	 * are likely to be correct) for the case where we either don't
-	 * attache to the firmware or it's crashed when we probe the adapter.
-	 * That way we'll still be able to perform early firmware startup
-	 * debugging ...  If the request to get the Firmware's Device Log
-	 * parameters fails, we'll live so we don't make that a fatal error.
-	 */
-	memset(&devlog_cmd, 0, sizeof(devlog_cmd));
-	devlog_cmd.op_to_write = htonl(FW_CMD_OP_V(FW_DEVLOG_CMD) |
-				       FW_CMD_REQUEST_F | FW_CMD_READ_F);
-	devlog_cmd.retval_len16 = htonl(FW_LEN16(devlog_cmd));
-	ret = t4_wr_mbox(adap, adap->mbox, &devlog_cmd, sizeof(devlog_cmd),
-			 &devlog_cmd);
-	if (ret == 0) {
-		devlog_meminfo =
-			ntohl(devlog_cmd.memtype_devlog_memaddr16_devlog);
-		adap->params.devlog.memtype =
-			FW_DEVLOG_CMD_MEMTYPE_DEVLOG_G(devlog_meminfo);
-		adap->params.devlog.start =
-			FW_DEVLOG_CMD_MEMADDR16_DEVLOG_G(devlog_meminfo) << 4;
-		adap->params.devlog.size = ntohl(devlog_cmd.memsize_devlog);
-	}
-
 	/*
 	 * Find out what ports are available to us.  Note that we need to do
 	 * this before calling adap_init0_no_config() since it needs nports
@@ -5293,6 +5296,51 @@ static int adap_init0(struct adapter *adap)
 	adap->tids.nftids = val[4] - val[3] + 1;
 	adap->sge.ingr_start = val[5];
 
+	/* qids (ingress/egress) returned from firmware can be anywhere
+	 * in the range from EQ(IQFLINT)_START to EQ(IQFLINT)_END.
+	 * Hence driver needs to allocate memory for this range to
+	 * store the queue info. Get the highest IQFLINT/EQ index returned
+	 * in FW_EQ_*_CMD.alloc command.
+	 */
+	params[0] = FW_PARAM_PFVF(EQ_END);
+	params[1] = FW_PARAM_PFVF(IQFLINT_END);
+	ret = t4_query_params(adap, adap->mbox, adap->fn, 0, 2, params, val);
+	if (ret < 0)
+		goto bye;
+	adap->sge.egr_sz = val[0] - adap->sge.egr_start + 1;
+	adap->sge.ingr_sz = val[1] - adap->sge.ingr_start + 1;
+
+	adap->sge.egr_map = kcalloc(adap->sge.egr_sz,
+				    sizeof(*adap->sge.egr_map), GFP_KERNEL);
+	if (!adap->sge.egr_map) {
+		ret = -ENOMEM;
+		goto bye;
+	}
+
+	adap->sge.ingr_map = kcalloc(adap->sge.ingr_sz,
+				     sizeof(*adap->sge.ingr_map), GFP_KERNEL);
+	if (!adap->sge.ingr_map) {
+		ret = -ENOMEM;
+		goto bye;
+	}
+
+	/* Allocate the memory for the vaious egress queue bitmaps
+	 * ie starving_fl and txq_maperr.
+	 */
+	adap->sge.starving_fl =	kcalloc(BITS_TO_LONGS(adap->sge.egr_sz),
+					sizeof(long), GFP_KERNEL);
+	if (!adap->sge.starving_fl) {
+		ret = -ENOMEM;
+		goto bye;
+	}
+
+	adap->sge.txq_maperr = kcalloc(BITS_TO_LONGS(adap->sge.egr_sz),
+				       sizeof(long), GFP_KERNEL);
+	if (!adap->sge.txq_maperr) {
+		ret = -ENOMEM;
+		goto bye;
+	}
+
 	params[0] = FW_PARAM_PFVF(CLIP_START);
 	params[1] = FW_PARAM_PFVF(CLIP_END);
 	ret = t4_query_params(adap, adap->mbox, adap->fn, 0, 2, params, val);
@@ -5501,6 +5549,10 @@ static int adap_init0(struct adapter *adap)
 	 * happened to HW/FW, stop issuing commands.
 	 */
 bye:
+	kfree(adap->sge.egr_map);
+	kfree(adap->sge.ingr_map);
+	kfree(adap->sge.starving_fl);
+	kfree(adap->sge.txq_maperr);
 	if (ret != -ETIMEDOUT && ret != -EIO)
 		t4_fw_bye(adap, adap->mbox);
 	return ret;
@@ -5528,6 +5580,7 @@ static pci_ers_result_t eeh_err_detected(struct pci_dev *pdev,
 		netif_carrier_off(dev);
 	}
 	spin_unlock(&adap->stats_lock);
+	disable_interrupts(adap);
 	if (adap->flags & FULL_INIT_DONE)
 		cxgb_down(adap);
 	rtnl_unlock();
@@ -5912,6 +5965,10 @@ static void free_some_resources(struct adapter *adapter)
 
 	t4_free_mem(adapter->l2t);
 	t4_free_mem(adapter->tids.tid_tab);
+	kfree(adapter->sge.egr_map);
+	kfree(adapter->sge.ingr_map);
+	kfree(adapter->sge.starving_fl);
+	kfree(adapter->sge.txq_maperr);
 	disable_msi(adapter);
 
 	for_each_port(adapter, i)
@@ -6237,6 +6294,8 @@ static void remove_one(struct pci_dev *pdev)
 		if (is_offload(adapter))
 			detach_ulds(adapter);
 
+		disable_interrupts(adapter);
+
 		for_each_port(adapter, i)
 			if (adapter->port[i]->reg_state == NETREG_REGISTERED)
 				unregister_netdev(adapter->port[i]);
diff --git a/drivers/net/ethernet/chelsio/cxgb4/sge.c b/drivers/net/ethernet/chelsio/cxgb4/sge.c
index b4b9f60..b688b32 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/sge.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/sge.c
@@ -2171,7 +2171,7 @@ static void sge_rx_timer_cb(unsigned long data)
 	struct adapter *adap = (struct adapter *)data;
 	struct sge *s = &adap->sge;
 
-	for (i = 0; i < ARRAY_SIZE(s->starving_fl); i++)
+	for (i = 0; i < BITS_TO_LONGS(s->egr_sz); i++)
 		for (m = s->starving_fl[i]; m; m &= m - 1) {
 			struct sge_eth_rxq *rxq;
 			unsigned int id = __ffs(m) + i * BITS_PER_LONG;
@@ -2259,7 +2259,7 @@ static void sge_tx_timer_cb(unsigned long data)
 	struct adapter *adap = (struct adapter *)data;
 	struct sge *s = &adap->sge;
 
-	for (i = 0; i < ARRAY_SIZE(s->txq_maperr); i++)
+	for (i = 0; i < BITS_TO_LONGS(s->egr_sz); i++)
 		for (m = s->txq_maperr[i]; m; m &= m - 1) {
 			unsigned long id = __ffs(m) + i * BITS_PER_LONG;
 			struct sge_ofld_txq *txq = s->egr_map[id];
@@ -2741,7 +2741,8 @@ void t4_free_sge_resources(struct adapter *adap)
 		free_rspq_fl(adap, &adap->sge.intrq, NULL);
 
 	/* clear the reverse egress queue map */
-	memset(adap->sge.egr_map, 0, sizeof(adap->sge.egr_map));
+	memset(adap->sge.egr_map, 0,
+	       adap->sge.egr_sz * sizeof(*adap->sge.egr_map));
 }
 
 void t4_sge_start(struct adapter *adap)
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
index 4d643b6..ee394dc 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
@@ -449,7 +449,7 @@ int t4_edc_read(struct adapter *adap, int idx, u32 addr, __be32 *data, u64 *ecc)
  *	@mtype: memory type: MEM_EDC0, MEM_EDC1 or MEM_MC
  *	@addr: address within indicated memory type
  *	@len: amount of memory to transfer
- *	@buf: host memory buffer
+ *	@hbuf: host memory buffer
  *	@dir: direction of transfer T4_MEMORY_READ (1) or T4_MEMORY_WRITE (0)
  *
  *	Reads/writes an [almost] arbitrary memory region in the firmware: the
@@ -460,15 +460,17 @@ int t4_edc_read(struct adapter *adap, int idx, u32 addr, __be32 *data, u64 *ecc)
  *	caller's responsibility to perform appropriate byte order conversions.
  */
 int t4_memory_rw(struct adapter *adap, int win, int mtype, u32 addr,
-		 u32 len, __be32 *buf, int dir)
+		 u32 len, void *hbuf, int dir)
 {
 	u32 pos, offset, resid, memoffset;
 	u32 edc_size, mc_size, win_pf, mem_reg, mem_aperture, mem_base;
+	u32 *buf;
 
 	/* Argument sanity checks ...
 	 */
-	if (addr & 0x3)
+	if (addr & 0x3 || (uintptr_t)hbuf & 0x3)
 		return -EINVAL;
+	buf = (u32 *)hbuf;
 
 	/* It's convenient to be able to handle lengths which aren't a
 	 * multiple of 32-bits because we often end up transferring files to
@@ -532,14 +534,45 @@ int t4_memory_rw(struct adapter *adap, int win, int mtype, u32 addr,
 
 	/* Transfer data to/from the adapter as long as there's an integral
 	 * number of 32-bit transfers to complete.
+	 *
+	 * A note on Endianness issues:
+	 *
+	 * The "register" reads and writes below from/to the PCI-E Memory
+	 * Window invoke the standard adapter Big-Endian to PCI-E Link
+	 * Little-Endian "swizzel."  As a result, if we have the following
+	 * data in adapter memory:
+	 *
+	 *     Memory:  ... | b0 | b1 | b2 | b3 | ...
+	 *     Address:      i+0  i+1  i+2  i+3
+	 *
+	 * Then a read of the adapter memory via the PCI-E Memory Window
+	 * will yield:
+	 *
+	 *     x = readl(i)
+	 *         31                  0
+	 *         [ b3 | b2 | b1 | b0 ]
+	 *
+	 * If this value is stored into local memory on a Little-Endian system
+	 * it will show up correctly in local memory as:
+	 *
+	 *     ( ..., b0, b1, b2, b3, ... )
+	 *
+	 * But on a Big-Endian system, the store will show up in memory
+	 * incorrectly swizzled as:
+	 *
+	 *     ( ..., b3, b2, b1, b0, ... )
+	 *
+	 * So we need to account for this in the reads and writes to the
+	 * PCI-E Memory Window below by undoing the register read/write
+	 * swizzels.
 	 */
 	while (len > 0) {
 		if (dir == T4_MEMORY_READ)
-			*buf++ = (__force __be32) t4_read_reg(adap,
-							mem_base + offset);
+			*buf++ = le32_to_cpu((__force __le32)t4_read_reg(adap,
+						mem_base + offset));
 		else
 			t4_write_reg(adap, mem_base + offset,
-				     (__force u32) *buf++);
+				     (__force u32)cpu_to_le32(*buf++));
 		offset += sizeof(__be32);
 		len -= sizeof(__be32);
 
@@ -568,15 +601,16 @@ int t4_memory_rw(struct adapter *adap, int win, int mtype, u32 addr,
 	 */
 	if (resid) {
 		union {
-			__be32 word;
+			u32 word;
 			char byte[4];
 		} last;
 		unsigned char *bp;
 		int i;
 
 		if (dir == T4_MEMORY_READ) {
-			last.word = (__force __be32) t4_read_reg(adap,
-							mem_base + offset);
+			last.word = le32_to_cpu(
+					(__force __le32)t4_read_reg(adap,
+						mem_base + offset));
 			for (bp = (unsigned char *)buf, i = resid; i < 4; i++)
 				bp[i] = last.byte[i];
 		} else {
@@ -584,7 +618,7 @@ int t4_memory_rw(struct adapter *adap, int win, int mtype, u32 addr,
 			for (i = resid; i < 4; i++)
 				last.byte[i] = 0;
 			t4_write_reg(adap, mem_base + offset,
-				     (__force u32) last.word);
+				     (__force u32)cpu_to_le32(last.word));
 		}
 	}
 
@@ -1086,7 +1120,7 @@ int t4_prep_fw(struct adapter *adap, struct fw_info *fw_info,
 		}
 
 		/* Installed successfully, update the cached header too. */
-		memcpy(card_fw, fs_fw, sizeof(*card_fw));
+		*card_fw = *fs_fw;
 		card_fw_usable = 1;
 		*reset = 0;	/* already reset as part of load_fw */
 	}
@@ -4425,6 +4459,59 @@ int cxgb4_t4_bar2_sge_qregs(struct adapter *adapter,
 }
 
 /**
+ *	t4_init_devlog_params - initialize adapter->params.devlog
+ *	@adap: the adapter
+ *
+ *	Initialize various fields of the adapter's Firmware Device Log
+ *	Parameters structure.
+ */
+int t4_init_devlog_params(struct adapter *adap)
+{
+	struct devlog_params *dparams = &adap->params.devlog;
+	u32 pf_dparams;
+	unsigned int devlog_meminfo;
+	struct fw_devlog_cmd devlog_cmd;
+	int ret;
+
+	/* If we're dealing with newer firmware, the Device Log Paramerters
+	 * are stored in a designated register which allows us to access the
+	 * Device Log even if we can't talk to the firmware.
+	 */
+	pf_dparams =
+		t4_read_reg(adap, PCIE_FW_REG(PCIE_FW_PF_A, PCIE_FW_PF_DEVLOG));
+	if (pf_dparams) {
+		unsigned int nentries, nentries128;
+
+		dparams->memtype = PCIE_FW_PF_DEVLOG_MEMTYPE_G(pf_dparams);
+		dparams->start = PCIE_FW_PF_DEVLOG_ADDR16_G(pf_dparams) << 4;
+
+		nentries128 = PCIE_FW_PF_DEVLOG_NENTRIES128_G(pf_dparams);
+		nentries = (nentries128 + 1) * 128;
+		dparams->size = nentries * sizeof(struct fw_devlog_e);
+
+		return 0;
+	}
+
+	/* Otherwise, ask the firmware for it's Device Log Parameters.
+	 */
+	memset(&devlog_cmd, 0, sizeof(devlog_cmd));
+	devlog_cmd.op_to_write = htonl(FW_CMD_OP_V(FW_DEVLOG_CMD) |
+				       FW_CMD_REQUEST_F | FW_CMD_READ_F);
+	devlog_cmd.retval_len16 = htonl(FW_LEN16(devlog_cmd));
+	ret = t4_wr_mbox(adap, adap->mbox, &devlog_cmd, sizeof(devlog_cmd),
+			 &devlog_cmd);
+	if (ret)
+		return ret;
+
+	devlog_meminfo = ntohl(devlog_cmd.memtype_devlog_memaddr16_devlog);
+	dparams->memtype = FW_DEVLOG_CMD_MEMTYPE_DEVLOG_G(devlog_meminfo);
+	dparams->start = FW_DEVLOG_CMD_MEMADDR16_DEVLOG_G(devlog_meminfo) << 4;
+	dparams->size = ntohl(devlog_cmd.memsize_devlog);
+
+	return 0;
+}
+
+/**
  *	t4_init_sge_params - initialize adap->params.sge
  *	@adapter: the adapter
  *
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h b/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h
index 231a725..326674b 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h
@@ -63,6 +63,8 @@
 #define MC_BIST_STATUS_REG(reg_addr, idx) ((reg_addr) + (idx) * 4)
 #define EDC_BIST_STATUS_REG(reg_addr, idx) ((reg_addr) + (idx) * 4)
 
+#define PCIE_FW_REG(reg_addr, idx) ((reg_addr) + (idx) * 4)
+
 #define SGE_PF_KDOORBELL_A 0x0
 
 #define QID_S    15
@@ -707,6 +709,7 @@
 #define PFNUM_V(x) ((x) << PFNUM_S)
 
 #define PCIE_FW_A 0x30b8
+#define PCIE_FW_PF_A 0x30bc
 
 #define PCIE_CORE_UTL_SYSTEM_BUS_AGENT_STATUS_A 0x5908
 
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h b/drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h
index 9b353a8..a4a19e0 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h
@@ -101,7 +101,7 @@ enum fw_wr_opcodes {
 	FW_RI_BIND_MW_WR               = 0x18,
 	FW_RI_FR_NSMR_WR               = 0x19,
 	FW_RI_INV_LSTAG_WR             = 0x1a,
-	FW_LASTC2E_WR                  = 0x40
+	FW_LASTC2E_WR                  = 0x70
 };
 
 struct fw_wr_hdr {
@@ -993,6 +993,7 @@ enum fw_memtype_cf {
 	FW_MEMTYPE_CF_EXTMEM		= 0x2,
 	FW_MEMTYPE_CF_FLASH		= 0x4,
 	FW_MEMTYPE_CF_INTERNAL		= 0x5,
+	FW_MEMTYPE_CF_EXTMEM1           = 0x6,
 };
 
 struct fw_caps_config_cmd {
@@ -1035,6 +1036,7 @@ enum fw_params_mnem {
 	FW_PARAMS_MNEM_PFVF		= 2,	/* function params */
 	FW_PARAMS_MNEM_REG		= 3,	/* limited register access */
 	FW_PARAMS_MNEM_DMAQ		= 4,	/* dma queue params */
+	FW_PARAMS_MNEM_CHNET            = 5,    /* chnet params */
 	FW_PARAMS_MNEM_LAST
 };
 
@@ -3102,7 +3104,8 @@ enum fw_devlog_facility {
 	FW_DEVLOG_FACILITY_FCOE		= 0x2E,
 	FW_DEVLOG_FACILITY_FOISCSI	= 0x30,
 	FW_DEVLOG_FACILITY_FOFCOE	= 0x32,
-	FW_DEVLOG_FACILITY_MAX		= 0x32,
+	FW_DEVLOG_FACILITY_CHNET        = 0x34,
+	FW_DEVLOG_FACILITY_MAX          = 0x34,
 };
 
 /* log message format */
@@ -3139,4 +3142,36 @@ struct fw_devlog_cmd {
 	(((x) >> FW_DEVLOG_CMD_MEMADDR16_DEVLOG_S) & \
 	 FW_DEVLOG_CMD_MEMADDR16_DEVLOG_M)
 
+/* P C I E   F W   P F 7   R E G I S T E R */
+
+/* PF7 stores the Firmware Device Log parameters which allows Host Drivers to
+ * access the "devlog" which needing to contact firmware.  The encoding is
+ * mostly the same as that returned by the DEVLOG command except for the size
+ * which is encoded as the number of entries in multiples-1 of 128 here rather
+ * than the memory size as is done in the DEVLOG command.  Thus, 0 means 128
+ * and 15 means 2048.  This of course in turn constrains the allowed values
+ * for the devlog size ...
+ */
+#define PCIE_FW_PF_DEVLOG		7
+
+#define PCIE_FW_PF_DEVLOG_NENTRIES128_S	28
+#define PCIE_FW_PF_DEVLOG_NENTRIES128_M	0xf
+#define PCIE_FW_PF_DEVLOG_NENTRIES128_V(x) \
+	((x) << PCIE_FW_PF_DEVLOG_NENTRIES128_S)
+#define PCIE_FW_PF_DEVLOG_NENTRIES128_G(x) \
+	(((x) >> PCIE_FW_PF_DEVLOG_NENTRIES128_S) & \
+	 PCIE_FW_PF_DEVLOG_NENTRIES128_M)
+
+#define PCIE_FW_PF_DEVLOG_ADDR16_S	4
+#define PCIE_FW_PF_DEVLOG_ADDR16_M	0xffffff
+#define PCIE_FW_PF_DEVLOG_ADDR16_V(x)	((x) << PCIE_FW_PF_DEVLOG_ADDR16_S)
+#define PCIE_FW_PF_DEVLOG_ADDR16_G(x) \
+	(((x) >> PCIE_FW_PF_DEVLOG_ADDR16_S) & PCIE_FW_PF_DEVLOG_ADDR16_M)
+
+#define PCIE_FW_PF_DEVLOG_MEMTYPE_S	0
+#define PCIE_FW_PF_DEVLOG_MEMTYPE_M	0xf
+#define PCIE_FW_PF_DEVLOG_MEMTYPE_V(x)	((x) << PCIE_FW_PF_DEVLOG_MEMTYPE_S)
+#define PCIE_FW_PF_DEVLOG_MEMTYPE_G(x) \
+	(((x) >> PCIE_FW_PF_DEVLOG_MEMTYPE_S) & PCIE_FW_PF_DEVLOG_MEMTYPE_M)
+
 #endif /* _T4FW_INTERFACE_H_ */
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4fw_version.h b/drivers/net/ethernet/chelsio/cxgb4/t4fw_version.h
index e2bd3f7..b9d1cba 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/t4fw_version.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4fw_version.h
@@ -36,13 +36,13 @@
 #define __T4FW_VERSION_H__
 
 #define T4FW_VERSION_MAJOR 0x01
-#define T4FW_VERSION_MINOR 0x0C
-#define T4FW_VERSION_MICRO 0x19
+#define T4FW_VERSION_MINOR 0x0D
+#define T4FW_VERSION_MICRO 0x20
 #define T4FW_VERSION_BUILD 0x00
 
 #define T5FW_VERSION_MAJOR 0x01
-#define T5FW_VERSION_MINOR 0x0C
-#define T5FW_VERSION_MICRO 0x19
+#define T5FW_VERSION_MINOR 0x0D
+#define T5FW_VERSION_MICRO 0x20
 #define T5FW_VERSION_BUILD 0x00
 
 #endif
diff --git a/drivers/net/ethernet/chelsio/cxgb4vf/sge.c b/drivers/net/ethernet/chelsio/cxgb4vf/sge.c
index 0545f0d..e0d7110 100644
--- a/drivers/net/ethernet/chelsio/cxgb4vf/sge.c
+++ b/drivers/net/ethernet/chelsio/cxgb4vf/sge.c
@@ -1004,7 +1004,7 @@ static inline void ring_tx_db(struct adapter *adapter, struct sge_txq *tq,
 					      ? (tq->pidx - 1)
 					      : (tq->size - 1));
 			__be64 *src = (__be64 *)&tq->desc[index];
-			__be64 __iomem *dst = (__be64 *)(tq->bar2_addr +
+			__be64 __iomem *dst = (__be64 __iomem *)(tq->bar2_addr +
 							 SGE_UDB_WCDOORBELL);
 			unsigned int count = EQ_UNIT / sizeof(__be64);
 
@@ -1018,7 +1018,11 @@ static inline void ring_tx_db(struct adapter *adapter, struct sge_txq *tq,
 			 * DMA.
 			 */
 			while (count) {
-				writeq(*src, dst);
+				/* the (__force u64) is because the compiler
+				 * doesn't understand the endian swizzling
+				 * going on
+				 */
+				writeq((__force u64)*src, dst);
 				src++;
 				dst++;
 				count--;
@@ -1252,8 +1256,8 @@ int t4vf_eth_xmit(struct sk_buff *skb, struct net_device *dev)
 	BUG_ON(DIV_ROUND_UP(ETHTXQ_MAX_HDR, TXD_PER_EQ_UNIT) > 1);
 	wr = (void *)&txq->q.desc[txq->q.pidx];
 	wr->equiq_to_len16 = cpu_to_be32(wr_mid);
-	wr->r3[0] = cpu_to_be64(0);
-	wr->r3[1] = cpu_to_be64(0);
+	wr->r3[0] = cpu_to_be32(0);
+	wr->r3[1] = cpu_to_be32(0);
 	skb_copy_from_linear_data(skb, (void *)wr->ethmacdst, fw_hdr_copy_len);
 	end = (u64 *)wr + flits;
 
diff --git a/drivers/net/ethernet/chelsio/cxgb4vf/t4vf_hw.c b/drivers/net/ethernet/chelsio/cxgb4vf/t4vf_hw.c
index 1b5506d..280b4a2 100644
--- a/drivers/net/ethernet/chelsio/cxgb4vf/t4vf_hw.c
+++ b/drivers/net/ethernet/chelsio/cxgb4vf/t4vf_hw.c
@@ -210,10 +210,10 @@ int t4vf_wr_mbox_core(struct adapter *adapter, const void *cmd, int size,
 
 			if (rpl) {
 				/* request bit in high-order BE word */
-				WARN_ON((be32_to_cpu(*(const u32 *)cmd)
+				WARN_ON((be32_to_cpu(*(const __be32 *)cmd)
 					 & FW_CMD_REQUEST_F) == 0);
 				get_mbox_rpl(adapter, rpl, size, mbox_data);
-				WARN_ON((be32_to_cpu(*(u32 *)rpl)
+				WARN_ON((be32_to_cpu(*(__be32 *)rpl)
 					 & FW_CMD_REQUEST_F) != 0);
 			}
 			t4_write_reg(adapter, mbox_ctl,
@@ -484,7 +484,7 @@ int t4_bar2_sge_qregs(struct adapter *adapter,
 	 *  o The BAR2 Queue ID.
 	 *  o The BAR2 Queue ID Offset into the BAR2 page.
 	 */
-	bar2_page_offset = ((qid >> qpp_shift) << page_shift);
+	bar2_page_offset = ((u64)(qid >> qpp_shift) << page_shift);
 	bar2_qid = qid & qpp_mask;
 	bar2_qid_offset = bar2_qid * SGE_UDB_SIZE;
 
diff --git a/drivers/net/ethernet/cisco/enic/enic_main.c b/drivers/net/ethernet/cisco/enic/enic_main.c
index 9cbe038..a5179bf 100644
--- a/drivers/net/ethernet/cisco/enic/enic_main.c
+++ b/drivers/net/ethernet/cisco/enic/enic_main.c
@@ -272,8 +272,8 @@ static irqreturn_t enic_isr_legacy(int irq, void *data)
 	}
 
 	if (ENIC_TEST_INTR(pba, notify_intr)) {
-		vnic_intr_return_all_credits(&enic->intr[notify_intr]);
 		enic_notify_check(enic);
+		vnic_intr_return_all_credits(&enic->intr[notify_intr]);
 	}
 
 	if (ENIC_TEST_INTR(pba, err_intr)) {
@@ -346,8 +346,8 @@ static irqreturn_t enic_isr_msix_notify(int irq, void *data)
 	struct enic *enic = data;
 	unsigned int intr = enic_msix_notify_intr(enic);
 
-	vnic_intr_return_all_credits(&enic->intr[intr]);
 	enic_notify_check(enic);
+	vnic_intr_return_all_credits(&enic->intr[intr]);
 
 	return IRQ_HANDLED;
 }
diff --git a/drivers/net/ethernet/dec/tulip/tulip_core.c b/drivers/net/ethernet/dec/tulip/tulip_core.c
index 3b42556..ed41559 100644
--- a/drivers/net/ethernet/dec/tulip/tulip_core.c
+++ b/drivers/net/ethernet/dec/tulip/tulip_core.c
@@ -589,7 +589,7 @@ static void tulip_tx_timeout(struct net_device *dev)
 			       (unsigned int)tp->rx_ring[i].buffer1,
 			       (unsigned int)tp->rx_ring[i].buffer2,
 			       buf[0], buf[1], buf[2]);
-			for (j = 0; buf[j] != 0xee && j < 1600; j++)
+			for (j = 0; ((j < 1600) && buf[j] != 0xee); j++)
 				if (j < 100)
 					pr_cont(" %02x", buf[j]);
 			pr_cont(" j=%d\n", j);
diff --git a/drivers/net/ethernet/emulex/benet/be.h b/drivers/net/ethernet/emulex/benet/be.h
index 27de37a..27b9fe9 100644
--- a/drivers/net/ethernet/emulex/benet/be.h
+++ b/drivers/net/ethernet/emulex/benet/be.h
@@ -354,6 +354,7 @@ struct be_vf_cfg {
 	u16 vlan_tag;
 	u32 tx_rate;
 	u32 plink_tracking;
+	u32 privileges;
 };
 
 enum vf_state {
@@ -423,6 +424,7 @@ struct be_adapter {
 
 	u8 __iomem *csr;	/* CSR BAR used only for BE2/3 */
 	u8 __iomem *db;		/* Door Bell */
+	u8 __iomem *pcicfg;	/* On SH,BEx only. Shadow of PCI config space */
 
 	struct mutex mbox_lock; /* For serializing mbox cmds to BE card */
 	struct be_dma_mem mbox_mem;
diff --git a/drivers/net/ethernet/emulex/benet/be_cmds.c b/drivers/net/ethernet/emulex/benet/be_cmds.c
index 36916cf..7f05f30 100644
--- a/drivers/net/ethernet/emulex/benet/be_cmds.c
+++ b/drivers/net/ethernet/emulex/benet/be_cmds.c
@@ -1902,15 +1902,11 @@ int be_cmd_modify_eqd(struct be_adapter *adapter, struct be_set_eqd *set_eqd,
 {
 	int num_eqs, i = 0;
 
-	if (lancer_chip(adapter) && num > 8) {
-		while (num) {
-			num_eqs = min(num, 8);
-			__be_cmd_modify_eqd(adapter, &set_eqd[i], num_eqs);
-			i += num_eqs;
-			num -= num_eqs;
-		}
-	} else {
-		__be_cmd_modify_eqd(adapter, set_eqd, num);
+	while (num) {
+		num_eqs = min(num, 8);
+		__be_cmd_modify_eqd(adapter, &set_eqd[i], num_eqs);
+		i += num_eqs;
+		num -= num_eqs;
 	}
 
 	return 0;
@@ -1918,7 +1914,7 @@ int be_cmd_modify_eqd(struct be_adapter *adapter, struct be_set_eqd *set_eqd,
 
 /* Uses sycnhronous mcc */
 int be_cmd_vlan_config(struct be_adapter *adapter, u32 if_id, u16 *vtag_array,
-		       u32 num)
+		       u32 num, u32 domain)
 {
 	struct be_mcc_wrb *wrb;
 	struct be_cmd_req_vlan_config *req;
@@ -1936,6 +1932,7 @@ int be_cmd_vlan_config(struct be_adapter *adapter, u32 if_id, u16 *vtag_array,
 	be_wrb_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON,
 			       OPCODE_COMMON_NTWK_VLAN_CONFIG, sizeof(*req),
 			       wrb, NULL);
+	req->hdr.domain = domain;
 
 	req->interface_id = if_id;
 	req->untagged = BE_IF_FLAGS_UNTAGGED & be_if_cap_flags(adapter) ? 1 : 0;
diff --git a/drivers/net/ethernet/emulex/benet/be_cmds.h b/drivers/net/ethernet/emulex/benet/be_cmds.h
index db761e8e..a7634a3 100644
--- a/drivers/net/ethernet/emulex/benet/be_cmds.h
+++ b/drivers/net/ethernet/emulex/benet/be_cmds.h
@@ -2256,7 +2256,7 @@ int lancer_cmd_get_pport_stats(struct be_adapter *adapter,
 int be_cmd_get_fw_ver(struct be_adapter *adapter);
 int be_cmd_modify_eqd(struct be_adapter *adapter, struct be_set_eqd *, int num);
 int be_cmd_vlan_config(struct be_adapter *adapter, u32 if_id, u16 *vtag_array,
-		       u32 num);
+		       u32 num, u32 domain);
 int be_cmd_rx_filter(struct be_adapter *adapter, u32 flags, u32 status);
 int be_cmd_set_flow_control(struct be_adapter *adapter, u32 tx_fc, u32 rx_fc);
 int be_cmd_get_flow_control(struct be_adapter *adapter, u32 *tx_fc, u32 *rx_fc);
diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index 0a81685..e6b790f 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -1171,7 +1171,7 @@ static int be_vid_config(struct be_adapter *adapter)
 	for_each_set_bit(i, adapter->vids, VLAN_N_VID)
 		vids[num++] = cpu_to_le16(i);
 
-	status = be_cmd_vlan_config(adapter, adapter->if_handle, vids, num);
+	status = be_cmd_vlan_config(adapter, adapter->if_handle, vids, num, 0);
 	if (status) {
 		dev_err(dev, "Setting HW VLAN filtering failed\n");
 		/* Set to VLAN promisc mode as setting VLAN filter failed */
@@ -1380,11 +1380,67 @@ static int be_get_vf_config(struct net_device *netdev, int vf,
 	return 0;
 }
 
+static int be_set_vf_tvt(struct be_adapter *adapter, int vf, u16 vlan)
+{
+	struct be_vf_cfg *vf_cfg = &adapter->vf_cfg[vf];
+	u16 vids[BE_NUM_VLANS_SUPPORTED];
+	int vf_if_id = vf_cfg->if_handle;
+	int status;
+
+	/* Enable Transparent VLAN Tagging */
+	status = be_cmd_set_hsw_config(adapter, vlan, vf + 1, vf_if_id, 0);
+	if (status)
+		return status;
+
+	/* Clear pre-programmed VLAN filters on VF if any, if TVT is enabled */
+	vids[0] = 0;
+	status = be_cmd_vlan_config(adapter, vf_if_id, vids, 1, vf + 1);
+	if (!status)
+		dev_info(&adapter->pdev->dev,
+			 "Cleared guest VLANs on VF%d", vf);
+
+	/* After TVT is enabled, disallow VFs to program VLAN filters */
+	if (vf_cfg->privileges & BE_PRIV_FILTMGMT) {
+		status = be_cmd_set_fn_privileges(adapter, vf_cfg->privileges &
+						  ~BE_PRIV_FILTMGMT, vf + 1);
+		if (!status)
+			vf_cfg->privileges &= ~BE_PRIV_FILTMGMT;
+	}
+	return 0;
+}
+
+static int be_clear_vf_tvt(struct be_adapter *adapter, int vf)
+{
+	struct be_vf_cfg *vf_cfg = &adapter->vf_cfg[vf];
+	struct device *dev = &adapter->pdev->dev;
+	int status;
+
+	/* Reset Transparent VLAN Tagging. */
+	status = be_cmd_set_hsw_config(adapter, BE_RESET_VLAN_TAG_ID, vf + 1,
+				       vf_cfg->if_handle, 0);
+	if (status)
+		return status;
+
+	/* Allow VFs to program VLAN filtering */
+	if (!(vf_cfg->privileges & BE_PRIV_FILTMGMT)) {
+		status = be_cmd_set_fn_privileges(adapter, vf_cfg->privileges |
+						  BE_PRIV_FILTMGMT, vf + 1);
+		if (!status) {
+			vf_cfg->privileges |= BE_PRIV_FILTMGMT;
+			dev_info(dev, "VF%d: FILTMGMT priv enabled", vf);
+		}
+	}
+
+	dev_info(dev,
+		 "Disable/re-enable i/f in VM to clear Transparent VLAN tag");
+	return 0;
+}
+
 static int be_set_vf_vlan(struct net_device *netdev, int vf, u16 vlan, u8 qos)
 {
 	struct be_adapter *adapter = netdev_priv(netdev);
 	struct be_vf_cfg *vf_cfg = &adapter->vf_cfg[vf];
-	int status = 0;
+	int status;
 
 	if (!sriov_enabled(adapter))
 		return -EPERM;
@@ -1394,24 +1450,19 @@ static int be_set_vf_vlan(struct net_device *netdev, int vf, u16 vlan, u8 qos)
 
 	if (vlan || qos) {
 		vlan |= qos << VLAN_PRIO_SHIFT;
-		if (vf_cfg->vlan_tag != vlan)
-			status = be_cmd_set_hsw_config(adapter, vlan, vf + 1,
-						       vf_cfg->if_handle, 0);
+		status = be_set_vf_tvt(adapter, vf, vlan);
 	} else {
-		/* Reset Transparent Vlan Tagging. */
-		status = be_cmd_set_hsw_config(adapter, BE_RESET_VLAN_TAG_ID,
-					       vf + 1, vf_cfg->if_handle, 0);
+		status = be_clear_vf_tvt(adapter, vf);
 	}
 
 	if (status) {
 		dev_err(&adapter->pdev->dev,
-			"VLAN %d config on VF %d failed : %#x\n", vlan,
-			vf, status);
+			"VLAN %d config on VF %d failed : %#x\n", vlan, vf,
+			status);
 		return be_cmd_status(status);
 	}
 
 	vf_cfg->vlan_tag = vlan;
-
 	return 0;
 }
 
@@ -2772,14 +2823,12 @@ void be_detect_error(struct be_adapter *adapter)
 			}
 		}
 	} else {
-		pci_read_config_dword(adapter->pdev,
-				      PCICFG_UE_STATUS_LOW, &ue_lo);
-		pci_read_config_dword(adapter->pdev,
-				      PCICFG_UE_STATUS_HIGH, &ue_hi);
-		pci_read_config_dword(adapter->pdev,
-				      PCICFG_UE_STATUS_LOW_MASK, &ue_lo_mask);
-		pci_read_config_dword(adapter->pdev,
-				      PCICFG_UE_STATUS_HI_MASK, &ue_hi_mask);
+		ue_lo = ioread32(adapter->pcicfg + PCICFG_UE_STATUS_LOW);
+		ue_hi = ioread32(adapter->pcicfg + PCICFG_UE_STATUS_HIGH);
+		ue_lo_mask = ioread32(adapter->pcicfg +
+				      PCICFG_UE_STATUS_LOW_MASK);
+		ue_hi_mask = ioread32(adapter->pcicfg +
+				      PCICFG_UE_STATUS_HI_MASK);
 
 		ue_lo = (ue_lo & ~ue_lo_mask);
 		ue_hi = (ue_hi & ~ue_hi_mask);
@@ -3339,7 +3388,6 @@ static int be_if_create(struct be_adapter *adapter, u32 *if_handle,
 			u32 cap_flags, u32 vf)
 {
 	u32 en_flags;
-	int status;
 
 	en_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST |
 		   BE_IF_FLAGS_MULTICAST | BE_IF_FLAGS_PASS_L3L4_ERRORS |
@@ -3347,10 +3395,7 @@ static int be_if_create(struct be_adapter *adapter, u32 *if_handle,
 
 	en_flags &= cap_flags;
 
-	status = be_cmd_if_create(adapter, cap_flags, en_flags,
-				  if_handle, vf);
-
-	return status;
+	return be_cmd_if_create(adapter, cap_flags, en_flags, if_handle, vf);
 }
 
 static int be_vfs_if_create(struct be_adapter *adapter)
@@ -3368,8 +3413,13 @@ static int be_vfs_if_create(struct be_adapter *adapter)
 		if (!BE3_chip(adapter)) {
 			status = be_cmd_get_profile_config(adapter, &res,
 							   vf + 1);
-			if (!status)
+			if (!status) {
 				cap_flags = res.if_cap_flags;
+				/* Prevent VFs from enabling VLAN promiscuous
+				 * mode
+				 */
+				cap_flags &= ~BE_IF_FLAGS_VLAN_PROMISCUOUS;
+			}
 		}
 
 		status = be_if_create(adapter, &vf_cfg->if_handle,
@@ -3403,7 +3453,6 @@ static int be_vf_setup(struct be_adapter *adapter)
 	struct device *dev = &adapter->pdev->dev;
 	struct be_vf_cfg *vf_cfg;
 	int status, old_vfs, vf;
-	u32 privileges;
 
 	old_vfs = pci_num_vf(adapter->pdev);
 
@@ -3433,15 +3482,18 @@ static int be_vf_setup(struct be_adapter *adapter)
 
 	for_all_vfs(adapter, vf_cfg, vf) {
 		/* Allow VFs to programs MAC/VLAN filters */
-		status = be_cmd_get_fn_privileges(adapter, &privileges, vf + 1);
-		if (!status && !(privileges & BE_PRIV_FILTMGMT)) {
+		status = be_cmd_get_fn_privileges(adapter, &vf_cfg->privileges,
+						  vf + 1);
+		if (!status && !(vf_cfg->privileges & BE_PRIV_FILTMGMT)) {
 			status = be_cmd_set_fn_privileges(adapter,
-							  privileges |
+							  vf_cfg->privileges |
 							  BE_PRIV_FILTMGMT,
 							  vf + 1);
-			if (!status)
+			if (!status) {
+				vf_cfg->privileges |= BE_PRIV_FILTMGMT;
 				dev_info(dev, "VF%d has FILTMGMT privilege\n",
 					 vf);
+			}
 		}
 
 		/* Allow full available bandwidth */
@@ -4820,24 +4872,37 @@ static int be_roce_map_pci_bars(struct be_adapter *adapter)
 
 static int be_map_pci_bars(struct be_adapter *adapter)
 {
+	struct pci_dev *pdev = adapter->pdev;
 	u8 __iomem *addr;
 
 	if (BEx_chip(adapter) && be_physfn(adapter)) {
-		adapter->csr = pci_iomap(adapter->pdev, 2, 0);
+		adapter->csr = pci_iomap(pdev, 2, 0);
 		if (!adapter->csr)
 			return -ENOMEM;
 	}
 
-	addr = pci_iomap(adapter->pdev, db_bar(adapter), 0);
+	addr = pci_iomap(pdev, db_bar(adapter), 0);
 	if (!addr)
 		goto pci_map_err;
 	adapter->db = addr;
 
+	if (skyhawk_chip(adapter) || BEx_chip(adapter)) {
+		if (be_physfn(adapter)) {
+			/* PCICFG is the 2nd BAR in BE2 */
+			addr = pci_iomap(pdev, BE2_chip(adapter) ? 1 : 0, 0);
+			if (!addr)
+				goto pci_map_err;
+			adapter->pcicfg = addr;
+		} else {
+			adapter->pcicfg = adapter->db + SRIOV_VF_PCICFG_OFFSET;
+		}
+	}
+
 	be_roce_map_pci_bars(adapter);
 	return 0;
 
 pci_map_err:
-	dev_err(&adapter->pdev->dev, "Error in mapping PCI BARs\n");
+	dev_err(&pdev->dev, "Error in mapping PCI BARs\n");
 	be_unmap_pci_bars(adapter);
 	return -ENOMEM;
 }
diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
index 9bb6220..f6a3a7a 100644
--- a/drivers/net/ethernet/freescale/fec_main.c
+++ b/drivers/net/ethernet/freescale/fec_main.c
@@ -1189,13 +1189,12 @@ static void
 fec_enet_tx_queue(struct net_device *ndev, u16 queue_id)
 {
 	struct	fec_enet_private *fep;
-	struct bufdesc *bdp, *bdp_t;
+	struct bufdesc *bdp;
 	unsigned short status;
 	struct	sk_buff	*skb;
 	struct fec_enet_priv_tx_q *txq;
 	struct netdev_queue *nq;
 	int	index = 0;
-	int	i, bdnum;
 	int	entries_free;
 
 	fep = netdev_priv(ndev);
@@ -1216,29 +1215,18 @@ fec_enet_tx_queue(struct net_device *ndev, u16 queue_id)
 		if (bdp == txq->cur_tx)
 			break;
 
-		bdp_t = bdp;
-		bdnum = 1;
-		index = fec_enet_get_bd_index(txq->tx_bd_base, bdp_t, fep);
-		skb = txq->tx_skbuff[index];
-		while (!skb) {
-			bdp_t = fec_enet_get_nextdesc(bdp_t, fep, queue_id);
-			index = fec_enet_get_bd_index(txq->tx_bd_base, bdp_t, fep);
-			skb = txq->tx_skbuff[index];
-			bdnum++;
-		}
-		if (skb_shinfo(skb)->nr_frags &&
-		    (status = bdp_t->cbd_sc) & BD_ENET_TX_READY)
-			break;
+		index = fec_enet_get_bd_index(txq->tx_bd_base, bdp, fep);
 
-		for (i = 0; i < bdnum; i++) {
-			if (!IS_TSO_HEADER(txq, bdp->cbd_bufaddr))
-				dma_unmap_single(&fep->pdev->dev, bdp->cbd_bufaddr,
-						 bdp->cbd_datlen, DMA_TO_DEVICE);
-			bdp->cbd_bufaddr = 0;
-			if (i < bdnum - 1)
-				bdp = fec_enet_get_nextdesc(bdp, fep, queue_id);
-		}
+		skb = txq->tx_skbuff[index];
 		txq->tx_skbuff[index] = NULL;
+		if (!IS_TSO_HEADER(txq, bdp->cbd_bufaddr))
+			dma_unmap_single(&fep->pdev->dev, bdp->cbd_bufaddr,
+					bdp->cbd_datlen, DMA_TO_DEVICE);
+		bdp->cbd_bufaddr = 0;
+		if (!skb) {
+			bdp = fec_enet_get_nextdesc(bdp, fep, queue_id);
+			continue;
+		}
 
 		/* Check for errors. */
 		if (status & (BD_ENET_TX_HB | BD_ENET_TX_LC |
@@ -1479,8 +1467,7 @@ fec_enet_rx_queue(struct net_device *ndev, int budget, u16 queue_id)
 
 			vlan_packet_rcvd = true;
 
-			skb_copy_to_linear_data_offset(skb, VLAN_HLEN,
-						       data, (2 * ETH_ALEN));
+			memmove(skb->data + VLAN_HLEN, data, ETH_ALEN * 2);
 			skb_pull(skb, VLAN_HLEN);
 		}
 
@@ -1597,7 +1584,7 @@ fec_enet_interrupt(int irq, void *dev_id)
 	writel(int_events, fep->hwp + FEC_IEVENT);
 	fec_enet_collect_events(fep, int_events);
 
-	if (fep->work_tx || fep->work_rx) {
+	if ((fep->work_tx || fep->work_rx) && fep->link) {
 		ret = IRQ_HANDLED;
 
 		if (napi_schedule_prep(&fep->napi)) {
@@ -1967,6 +1954,7 @@ static int fec_enet_mii_init(struct platform_device *pdev)
 	struct fec_enet_private *fep = netdev_priv(ndev);
 	struct device_node *node;
 	int err = -ENXIO, i;
+	u32 mii_speed, holdtime;
 
 	/*
 	 * The i.MX28 dual fec interfaces are not equal.
@@ -2004,10 +1992,33 @@ static int fec_enet_mii_init(struct platform_device *pdev)
 	 * Reference Manual has an error on this, and gets fixed on i.MX6Q
 	 * document.
 	 */
-	fep->phy_speed = DIV_ROUND_UP(clk_get_rate(fep->clk_ipg), 5000000);
+	mii_speed = DIV_ROUND_UP(clk_get_rate(fep->clk_ipg), 5000000);
 	if (fep->quirks & FEC_QUIRK_ENET_MAC)
-		fep->phy_speed--;
-	fep->phy_speed <<= 1;
+		mii_speed--;
+	if (mii_speed > 63) {
+		dev_err(&pdev->dev,
+			"fec clock (%lu) to fast to get right mii speed\n",
+			clk_get_rate(fep->clk_ipg));
+		err = -EINVAL;
+		goto err_out;
+	}
+
+	/*
+	 * The i.MX28 and i.MX6 types have another filed in the MSCR (aka
+	 * MII_SPEED) register that defines the MDIO output hold time. Earlier
+	 * versions are RAZ there, so just ignore the difference and write the
+	 * register always.
+	 * The minimal hold time according to IEE802.3 (clause 22) is 10 ns.
+	 * HOLDTIME + 1 is the number of clk cycles the fec is holding the
+	 * output.
+	 * The HOLDTIME bitfield takes values between 0 and 7 (inclusive).
+	 * Given that ceil(clkrate / 5000000) <= 64, the calculation for
+	 * holdtime cannot result in a value greater than 3.
+	 */
+	holdtime = DIV_ROUND_UP(clk_get_rate(fep->clk_ipg), 100000000) - 1;
+
+	fep->phy_speed = mii_speed << 1 | holdtime << 8;
+
 	writel(fep->phy_speed, fep->hwp + FEC_MII_SPEED);
 
 	fep->mii_bus = mdiobus_alloc();
@@ -3383,7 +3394,6 @@ fec_drv_remove(struct platform_device *pdev)
 		regulator_disable(fep->reg_phy);
 	if (fep->ptp_clock)
 		ptp_clock_unregister(fep->ptp_clock);
-	fec_enet_clk_enable(ndev, false);
 	of_node_put(fep->phy_node);
 	free_netdev(ndev);
 
diff --git a/drivers/net/ethernet/freescale/gianfar.c b/drivers/net/ethernet/freescale/gianfar.c
index 43df788..7bf3682 100644
--- a/drivers/net/ethernet/freescale/gianfar.c
+++ b/drivers/net/ethernet/freescale/gianfar.c
@@ -747,6 +747,18 @@ static int gfar_parse_group(struct device_node *np,
 	return 0;
 }
 
+static int gfar_of_group_count(struct device_node *np)
+{
+	struct device_node *child;
+	int num = 0;
+
+	for_each_available_child_of_node(np, child)
+		if (!of_node_cmp(child->name, "queue-group"))
+			num++;
+
+	return num;
+}
+
 static int gfar_of_init(struct platform_device *ofdev, struct net_device **pdev)
 {
 	const char *model;
@@ -784,7 +796,7 @@ static int gfar_of_init(struct platform_device *ofdev, struct net_device **pdev)
 		num_rx_qs = 1;
 	} else { /* MQ_MG_MODE */
 		/* get the actual number of supported groups */
-		unsigned int num_grps = of_get_available_child_count(np);
+		unsigned int num_grps = gfar_of_group_count(np);
 
 		if (num_grps == 0 || num_grps > MAXGROUPS) {
 			dev_err(&ofdev->dev, "Invalid # of int groups(%d)\n",
@@ -851,7 +863,10 @@ static int gfar_of_init(struct platform_device *ofdev, struct net_device **pdev)
 
 	/* Parse and initialize group specific information */
 	if (priv->mode == MQ_MG_MODE) {
-		for_each_child_of_node(np, child) {
+		for_each_available_child_of_node(np, child) {
+			if (of_node_cmp(child->name, "queue-group"))
+				continue;
+
 			err = gfar_parse_group(child, priv, model);
 			if (err)
 				goto err_grp_init;
@@ -3162,8 +3177,8 @@ static void adjust_link(struct net_device *dev)
 	struct phy_device *phydev = priv->phydev;
 
 	if (unlikely(phydev->link != priv->oldlink ||
-		     phydev->duplex != priv->oldduplex ||
-		     phydev->speed != priv->oldspeed))
+		     (phydev->link && (phydev->duplex != priv->oldduplex ||
+				       phydev->speed != priv->oldspeed))))
 		gfar_update_link_state(priv);
 }
 
diff --git a/drivers/net/ethernet/freescale/ucc_geth.c b/drivers/net/ethernet/freescale/ucc_geth.c
index 357e8b57..56b774d 100644
--- a/drivers/net/ethernet/freescale/ucc_geth.c
+++ b/drivers/net/ethernet/freescale/ucc_geth.c
@@ -3893,6 +3893,9 @@ static int ucc_geth_probe(struct platform_device* ofdev)
 	ugeth->phy_interface = phy_interface;
 	ugeth->max_speed = max_speed;
 
+	/* Carrier starts down, phylib will bring it up */
+	netif_carrier_off(dev);
+
 	err = register_netdev(dev);
 	if (err) {
 		if (netif_msg_probe(ugeth))
diff --git a/drivers/net/ethernet/ibm/ehea/ehea_main.c b/drivers/net/ethernet/ibm/ehea/ehea_main.c
index e8a1adb..c05e507 100644
--- a/drivers/net/ethernet/ibm/ehea/ehea_main.c
+++ b/drivers/net/ethernet/ibm/ehea/ehea_main.c
@@ -3262,6 +3262,139 @@ static void ehea_remove_device_sysfs(struct platform_device *dev)
 	device_remove_file(&dev->dev, &dev_attr_remove_port);
 }
 
+static int ehea_reboot_notifier(struct notifier_block *nb,
+				unsigned long action, void *unused)
+{
+	if (action == SYS_RESTART) {
+		pr_info("Reboot: freeing all eHEA resources\n");
+		ibmebus_unregister_driver(&ehea_driver);
+	}
+	return NOTIFY_DONE;
+}
+
+static struct notifier_block ehea_reboot_nb = {
+	.notifier_call = ehea_reboot_notifier,
+};
+
+static int ehea_mem_notifier(struct notifier_block *nb,
+			     unsigned long action, void *data)
+{
+	int ret = NOTIFY_BAD;
+	struct memory_notify *arg = data;
+
+	mutex_lock(&dlpar_mem_lock);
+
+	switch (action) {
+	case MEM_CANCEL_OFFLINE:
+		pr_info("memory offlining canceled");
+		/* Fall through: re-add canceled memory block */
+
+	case MEM_ONLINE:
+		pr_info("memory is going online");
+		set_bit(__EHEA_STOP_XFER, &ehea_driver_flags);
+		if (ehea_add_sect_bmap(arg->start_pfn, arg->nr_pages))
+			goto out_unlock;
+		ehea_rereg_mrs();
+		break;
+
+	case MEM_GOING_OFFLINE:
+		pr_info("memory is going offline");
+		set_bit(__EHEA_STOP_XFER, &ehea_driver_flags);
+		if (ehea_rem_sect_bmap(arg->start_pfn, arg->nr_pages))
+			goto out_unlock;
+		ehea_rereg_mrs();
+		break;
+
+	default:
+		break;
+	}
+
+	ehea_update_firmware_handles();
+	ret = NOTIFY_OK;
+
+out_unlock:
+	mutex_unlock(&dlpar_mem_lock);
+	return ret;
+}
+
+static struct notifier_block ehea_mem_nb = {
+	.notifier_call = ehea_mem_notifier,
+};
+
+static void ehea_crash_handler(void)
+{
+	int i;
+
+	if (ehea_fw_handles.arr)
+		for (i = 0; i < ehea_fw_handles.num_entries; i++)
+			ehea_h_free_resource(ehea_fw_handles.arr[i].adh,
+					     ehea_fw_handles.arr[i].fwh,
+					     FORCE_FREE);
+
+	if (ehea_bcmc_regs.arr)
+		for (i = 0; i < ehea_bcmc_regs.num_entries; i++)
+			ehea_h_reg_dereg_bcmc(ehea_bcmc_regs.arr[i].adh,
+					      ehea_bcmc_regs.arr[i].port_id,
+					      ehea_bcmc_regs.arr[i].reg_type,
+					      ehea_bcmc_regs.arr[i].macaddr,
+					      0, H_DEREG_BCMC);
+}
+
+static atomic_t ehea_memory_hooks_registered;
+
+/* Register memory hooks on probe of first adapter */
+static int ehea_register_memory_hooks(void)
+{
+	int ret = 0;
+
+	if (atomic_inc_and_test(&ehea_memory_hooks_registered))
+		return 0;
+
+	ret = ehea_create_busmap();
+	if (ret) {
+		pr_info("ehea_create_busmap failed\n");
+		goto out;
+	}
+
+	ret = register_reboot_notifier(&ehea_reboot_nb);
+	if (ret) {
+		pr_info("register_reboot_notifier failed\n");
+		goto out;
+	}
+
+	ret = register_memory_notifier(&ehea_mem_nb);
+	if (ret) {
+		pr_info("register_memory_notifier failed\n");
+		goto out2;
+	}
+
+	ret = crash_shutdown_register(ehea_crash_handler);
+	if (ret) {
+		pr_info("crash_shutdown_register failed\n");
+		goto out3;
+	}
+
+	return 0;
+
+out3:
+	unregister_memory_notifier(&ehea_mem_nb);
+out2:
+	unregister_reboot_notifier(&ehea_reboot_nb);
+out:
+	return ret;
+}
+
+static void ehea_unregister_memory_hooks(void)
+{
+	if (atomic_read(&ehea_memory_hooks_registered))
+		return;
+
+	unregister_reboot_notifier(&ehea_reboot_nb);
+	if (crash_shutdown_unregister(ehea_crash_handler))
+		pr_info("failed unregistering crash handler\n");
+	unregister_memory_notifier(&ehea_mem_nb);
+}
+
 static int ehea_probe_adapter(struct platform_device *dev)
 {
 	struct ehea_adapter *adapter;
@@ -3269,6 +3402,10 @@ static int ehea_probe_adapter(struct platform_device *dev)
 	int ret;
 	int i;
 
+	ret = ehea_register_memory_hooks();
+	if (ret)
+		return ret;
+
 	if (!dev || !dev->dev.of_node) {
 		pr_err("Invalid ibmebus device probed\n");
 		return -EINVAL;
@@ -3392,81 +3529,6 @@ static int ehea_remove(struct platform_device *dev)
 	return 0;
 }
 
-static void ehea_crash_handler(void)
-{
-	int i;
-
-	if (ehea_fw_handles.arr)
-		for (i = 0; i < ehea_fw_handles.num_entries; i++)
-			ehea_h_free_resource(ehea_fw_handles.arr[i].adh,
-					     ehea_fw_handles.arr[i].fwh,
-					     FORCE_FREE);
-
-	if (ehea_bcmc_regs.arr)
-		for (i = 0; i < ehea_bcmc_regs.num_entries; i++)
-			ehea_h_reg_dereg_bcmc(ehea_bcmc_regs.arr[i].adh,
-					      ehea_bcmc_regs.arr[i].port_id,
-					      ehea_bcmc_regs.arr[i].reg_type,
-					      ehea_bcmc_regs.arr[i].macaddr,
-					      0, H_DEREG_BCMC);
-}
-
-static int ehea_mem_notifier(struct notifier_block *nb,
-                             unsigned long action, void *data)
-{
-	int ret = NOTIFY_BAD;
-	struct memory_notify *arg = data;
-
-	mutex_lock(&dlpar_mem_lock);
-
-	switch (action) {
-	case MEM_CANCEL_OFFLINE:
-		pr_info("memory offlining canceled");
-		/* Readd canceled memory block */
-	case MEM_ONLINE:
-		pr_info("memory is going online");
-		set_bit(__EHEA_STOP_XFER, &ehea_driver_flags);
-		if (ehea_add_sect_bmap(arg->start_pfn, arg->nr_pages))
-			goto out_unlock;
-		ehea_rereg_mrs();
-		break;
-	case MEM_GOING_OFFLINE:
-		pr_info("memory is going offline");
-		set_bit(__EHEA_STOP_XFER, &ehea_driver_flags);
-		if (ehea_rem_sect_bmap(arg->start_pfn, arg->nr_pages))
-			goto out_unlock;
-		ehea_rereg_mrs();
-		break;
-	default:
-		break;
-	}
-
-	ehea_update_firmware_handles();
-	ret = NOTIFY_OK;
-
-out_unlock:
-	mutex_unlock(&dlpar_mem_lock);
-	return ret;
-}
-
-static struct notifier_block ehea_mem_nb = {
-	.notifier_call = ehea_mem_notifier,
-};
-
-static int ehea_reboot_notifier(struct notifier_block *nb,
-				unsigned long action, void *unused)
-{
-	if (action == SYS_RESTART) {
-		pr_info("Reboot: freeing all eHEA resources\n");
-		ibmebus_unregister_driver(&ehea_driver);
-	}
-	return NOTIFY_DONE;
-}
-
-static struct notifier_block ehea_reboot_nb = {
-	.notifier_call = ehea_reboot_notifier,
-};
-
 static int check_module_parm(void)
 {
 	int ret = 0;
@@ -3520,26 +3582,10 @@ static int __init ehea_module_init(void)
 	if (ret)
 		goto out;
 
-	ret = ehea_create_busmap();
-	if (ret)
-		goto out;
-
-	ret = register_reboot_notifier(&ehea_reboot_nb);
-	if (ret)
-		pr_info("failed registering reboot notifier\n");
-
-	ret = register_memory_notifier(&ehea_mem_nb);
-	if (ret)
-		pr_info("failed registering memory remove notifier\n");
-
-	ret = crash_shutdown_register(ehea_crash_handler);
-	if (ret)
-		pr_info("failed registering crash handler\n");
-
 	ret = ibmebus_register_driver(&ehea_driver);
 	if (ret) {
 		pr_err("failed registering eHEA device driver on ebus\n");
-		goto out2;
+		goto out;
 	}
 
 	ret = driver_create_file(&ehea_driver.driver,
@@ -3547,32 +3593,22 @@ static int __init ehea_module_init(void)
 	if (ret) {
 		pr_err("failed to register capabilities attribute, ret=%d\n",
 		       ret);
-		goto out3;
+		goto out2;
 	}
 
 	return ret;
 
-out3:
-	ibmebus_unregister_driver(&ehea_driver);
 out2:
-	unregister_memory_notifier(&ehea_mem_nb);
-	unregister_reboot_notifier(&ehea_reboot_nb);
-	crash_shutdown_unregister(ehea_crash_handler);
+	ibmebus_unregister_driver(&ehea_driver);
 out:
 	return ret;
 }
 
 static void __exit ehea_module_exit(void)
 {
-	int ret;
-
 	driver_remove_file(&ehea_driver.driver, &driver_attr_capabilities);
 	ibmebus_unregister_driver(&ehea_driver);
-	unregister_reboot_notifier(&ehea_reboot_nb);
-	ret = crash_shutdown_unregister(ehea_crash_handler);
-	if (ret)
-		pr_info("failed unregistering crash handler\n");
-	unregister_memory_notifier(&ehea_mem_nb);
+	ehea_unregister_memory_hooks();
 	kfree(ehea_fw_handles.arr);
 	kfree(ehea_bcmc_regs.arr);
 	ehea_destroy_busmap();
diff --git a/drivers/net/ethernet/ibm/ibmveth.c b/drivers/net/ethernet/ibm/ibmveth.c
index 21978cc..cd7675a 100644
--- a/drivers/net/ethernet/ibm/ibmveth.c
+++ b/drivers/net/ethernet/ibm/ibmveth.c
@@ -1136,6 +1136,8 @@ restart_poll:
 	ibmveth_replenish_task(adapter);
 
 	if (frames_processed < budget) {
+		napi_complete(napi);
+
 		/* We think we are done - reenable interrupts,
 		 * then check once more to make sure we are done.
 		 */
@@ -1144,8 +1146,6 @@ restart_poll:
 
 		BUG_ON(lpar_rc != H_SUCCESS);
 
-		napi_complete(napi);
-
 		if (ibmveth_rxq_pending_buffer(adapter) &&
 		    napi_reschedule(napi)) {
 			lpar_rc = h_vio_signal(adapter->vdev->unit_address,
@@ -1327,6 +1327,28 @@ static unsigned long ibmveth_get_desired_dma(struct vio_dev *vdev)
 	return ret;
 }
 
+static int ibmveth_set_mac_addr(struct net_device *dev, void *p)
+{
+	struct ibmveth_adapter *adapter = netdev_priv(dev);
+	struct sockaddr *addr = p;
+	u64 mac_address;
+	int rc;
+
+	if (!is_valid_ether_addr(addr->sa_data))
+		return -EADDRNOTAVAIL;
+
+	mac_address = ibmveth_encode_mac_addr(addr->sa_data);
+	rc = h_change_logical_lan_mac(adapter->vdev->unit_address, mac_address);
+	if (rc) {
+		netdev_err(adapter->netdev, "h_change_logical_lan_mac failed with rc=%d\n", rc);
+		return rc;
+	}
+
+	ether_addr_copy(dev->dev_addr, addr->sa_data);
+
+	return 0;
+}
+
 static const struct net_device_ops ibmveth_netdev_ops = {
 	.ndo_open		= ibmveth_open,
 	.ndo_stop		= ibmveth_close,
@@ -1337,7 +1359,7 @@ static const struct net_device_ops ibmveth_netdev_ops = {
 	.ndo_fix_features	= ibmveth_fix_features,
 	.ndo_set_features	= ibmveth_set_features,
 	.ndo_validate_addr	= eth_validate_addr,
-	.ndo_set_mac_address	= eth_mac_addr,
+	.ndo_set_mac_address    = ibmveth_set_mac_addr,
 #ifdef CONFIG_NET_POLL_CONTROLLER
 	.ndo_poll_controller	= ibmveth_poll_controller,
 #endif
diff --git a/drivers/net/ethernet/intel/i40e/i40e_common.c b/drivers/net/ethernet/intel/i40e/i40e_common.c
index 11a9ffe..6aea65d 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_common.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_common.c
@@ -868,8 +868,9 @@ i40e_status i40e_pf_reset(struct i40e_hw *hw)
 	 * The grst delay value is in 100ms units, and we'll wait a
 	 * couple counts longer to be sure we don't just miss the end.
 	 */
-	grst_del = rd32(hw, I40E_GLGEN_RSTCTL) & I40E_GLGEN_RSTCTL_GRSTDEL_MASK
-			>> I40E_GLGEN_RSTCTL_GRSTDEL_SHIFT;
+	grst_del = (rd32(hw, I40E_GLGEN_RSTCTL) &
+		    I40E_GLGEN_RSTCTL_GRSTDEL_MASK) >>
+		    I40E_GLGEN_RSTCTL_GRSTDEL_SHIFT;
 	for (cnt = 0; cnt < grst_del + 2; cnt++) {
 		reg = rd32(hw, I40E_GLGEN_RSTAT);
 		if (!(reg & I40E_GLGEN_RSTAT_DEVSTATE_MASK))
@@ -2846,7 +2847,7 @@ i40e_status i40e_aq_add_udp_tunnel(struct i40e_hw *hw,
 
 	status = i40e_asq_send_command(hw, &desc, NULL, 0, cmd_details);
 
-	if (!status)
+	if (!status && filter_index)
 		*filter_index = resp->index;
 
 	return status;
diff --git a/drivers/net/ethernet/intel/i40e/i40e_dcb_nl.c b/drivers/net/ethernet/intel/i40e/i40e_dcb_nl.c
index 183dcb6..a11c70c 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_dcb_nl.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_dcb_nl.c
@@ -40,7 +40,7 @@ static void i40e_get_pfc_delay(struct i40e_hw *hw, u16 *delay)
 	u32 val;
 
 	val = rd32(hw, I40E_PRTDCB_GENC);
-	*delay = (u16)(val & I40E_PRTDCB_GENC_PFCLDA_MASK >>
+	*delay = (u16)((val & I40E_PRTDCB_GENC_PFCLDA_MASK) >>
 		       I40E_PRTDCB_GENC_PFCLDA_SHIFT);
 }
 
diff --git a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
index 61236f9..c17ee77 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
@@ -989,8 +989,10 @@ static ssize_t i40e_dbg_command_write(struct file *filp,
 	if (!cmd_buf)
 		return count;
 	bytes_not_copied = copy_from_user(cmd_buf, buffer, count);
-	if (bytes_not_copied < 0)
+	if (bytes_not_copied < 0) {
+		kfree(cmd_buf);
 		return bytes_not_copied;
+	}
 	if (bytes_not_copied > 0)
 		count -= bytes_not_copied;
 	cmd_buf[count] = '\0';
diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index cbe281b..dadda3c 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -1512,7 +1512,12 @@ static void i40e_vsi_setup_queue_map(struct i40e_vsi *vsi,
 	vsi->tc_config.numtc = numtc;
 	vsi->tc_config.enabled_tc = enabled_tc ? enabled_tc : 1;
 	/* Number of queues per enabled TC */
-	num_tc_qps = vsi->alloc_queue_pairs/numtc;
+	/* In MFP case we can have a much lower count of MSIx
+	 * vectors available and so we need to lower the used
+	 * q count.
+	 */
+	qcount = min_t(int, vsi->alloc_queue_pairs, pf->num_lan_msix);
+	num_tc_qps = qcount / numtc;
 	num_tc_qps = min_t(int, num_tc_qps, I40E_MAX_QUEUES_PER_TC);
 
 	/* Setup queue offset/count for all TCs for given VSI */
@@ -2684,8 +2689,15 @@ static void i40e_vsi_config_dcb_rings(struct i40e_vsi *vsi)
 	u16 qoffset, qcount;
 	int i, n;
 
-	if (!(vsi->back->flags & I40E_FLAG_DCB_ENABLED))
-		return;
+	if (!(vsi->back->flags & I40E_FLAG_DCB_ENABLED)) {
+		/* Reset the TC information */
+		for (i = 0; i < vsi->num_queue_pairs; i++) {
+			rx_ring = vsi->rx_rings[i];
+			tx_ring = vsi->tx_rings[i];
+			rx_ring->dcb_tc = 0;
+			tx_ring->dcb_tc = 0;
+		}
+	}
 
 	for (n = 0; n < I40E_MAX_TRAFFIC_CLASS; n++) {
 		if (!(vsi->tc_config.enabled_tc & (1 << n)))
@@ -3830,6 +3842,12 @@ static void i40e_clear_interrupt_scheme(struct i40e_pf *pf)
 {
 	int i;
 
+	i40e_stop_misc_vector(pf);
+	if (pf->flags & I40E_FLAG_MSIX_ENABLED) {
+		synchronize_irq(pf->msix_entries[0].vector);
+		free_irq(pf->msix_entries[0].vector, pf);
+	}
+
 	i40e_put_lump(pf->irq_pile, 0, I40E_PILE_VALID_BIT-1);
 	for (i = 0; i < pf->num_alloc_vsi; i++)
 		if (pf->vsi[i])
@@ -5254,8 +5272,14 @@ static int i40e_handle_lldp_event(struct i40e_pf *pf,
 
 	/* Wait for the PF's Tx queues to be disabled */
 	ret = i40e_pf_wait_txq_disabled(pf);
-	if (!ret)
+	if (ret) {
+		/* Schedule PF reset to recover */
+		set_bit(__I40E_PF_RESET_REQUESTED, &pf->state);
+		i40e_service_event_schedule(pf);
+	} else {
 		i40e_pf_unquiesce_all_vsi(pf);
+	}
+
 exit:
 	return ret;
 }
@@ -5587,7 +5611,8 @@ static void i40e_check_hang_subtask(struct i40e_pf *pf)
 	int i, v;
 
 	/* If we're down or resetting, just bail */
-	if (test_bit(__I40E_CONFIG_BUSY, &pf->state))
+	if (test_bit(__I40E_DOWN, &pf->state) ||
+	    test_bit(__I40E_CONFIG_BUSY, &pf->state))
 		return;
 
 	/* for each VSI/netdev
@@ -9533,6 +9558,7 @@ static void i40e_remove(struct pci_dev *pdev)
 	set_bit(__I40E_DOWN, &pf->state);
 	del_timer_sync(&pf->service_timer);
 	cancel_work_sync(&pf->service_task);
+	i40e_fdir_teardown(pf);
 
 	if (pf->flags & I40E_FLAG_SRIOV_ENABLED) {
 		i40e_free_vfs(pf);
@@ -9559,12 +9585,6 @@ static void i40e_remove(struct pci_dev *pdev)
 	if (pf->vsi[pf->lan_vsi])
 		i40e_vsi_release(pf->vsi[pf->lan_vsi]);
 
-	i40e_stop_misc_vector(pf);
-	if (pf->flags & I40E_FLAG_MSIX_ENABLED) {
-		synchronize_irq(pf->msix_entries[0].vector);
-		free_irq(pf->msix_entries[0].vector, pf);
-	}
-
 	/* shutdown and destroy the HMC */
 	if (pf->hw.hmc.hmc_obj) {
 		ret_code = i40e_shutdown_lan_hmc(&pf->hw);
@@ -9718,6 +9738,8 @@ static void i40e_shutdown(struct pci_dev *pdev)
 	wr32(hw, I40E_PFPM_APM, (pf->wol_en ? I40E_PFPM_APM_APME_MASK : 0));
 	wr32(hw, I40E_PFPM_WUFC, (pf->wol_en ? I40E_PFPM_WUFC_MAG_MASK : 0));
 
+	i40e_clear_interrupt_scheme(pf);
+
 	if (system_state == SYSTEM_POWER_OFF) {
 		pci_wake_from_d3(pdev, pf->wol_en);
 		pci_set_power_state(pdev, PCI_D3hot);
diff --git a/drivers/net/ethernet/intel/i40e/i40e_nvm.c b/drivers/net/ethernet/intel/i40e/i40e_nvm.c
index 3e70f2e..5defe0d 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_nvm.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_nvm.c
@@ -679,9 +679,11 @@ static i40e_status i40e_nvmupd_state_writing(struct i40e_hw *hw,
 {
 	i40e_status status;
 	enum i40e_nvmupd_cmd upd_cmd;
+	bool retry_attempt = false;
 
 	upd_cmd = i40e_nvmupd_validate_command(hw, cmd, errno);
 
+retry:
 	switch (upd_cmd) {
 	case I40E_NVMUPD_WRITE_CON:
 		status = i40e_nvmupd_nvm_write(hw, cmd, bytes, errno);
@@ -725,6 +727,39 @@ static i40e_status i40e_nvmupd_state_writing(struct i40e_hw *hw,
 		*errno = -ESRCH;
 		break;
 	}
+
+	/* In some circumstances, a multi-write transaction takes longer
+	 * than the default 3 minute timeout on the write semaphore.  If
+	 * the write failed with an EBUSY status, this is likely the problem,
+	 * so here we try to reacquire the semaphore then retry the write.
+	 * We only do one retry, then give up.
+	 */
+	if (status && (hw->aq.asq_last_status == I40E_AQ_RC_EBUSY) &&
+	    !retry_attempt) {
+		i40e_status old_status = status;
+		u32 old_asq_status = hw->aq.asq_last_status;
+		u32 gtime;
+
+		gtime = rd32(hw, I40E_GLVFGEN_TIMER);
+		if (gtime >= hw->nvm.hw_semaphore_timeout) {
+			i40e_debug(hw, I40E_DEBUG_ALL,
+				   "NVMUPD: write semaphore expired (%d >= %lld), retrying\n",
+				   gtime, hw->nvm.hw_semaphore_timeout);
+			i40e_release_nvm(hw);
+			status = i40e_acquire_nvm(hw, I40E_RESOURCE_WRITE);
+			if (status) {
+				i40e_debug(hw, I40E_DEBUG_ALL,
+					   "NVMUPD: write semaphore reacquire failed aq_err = %d\n",
+					   hw->aq.asq_last_status);
+				status = old_status;
+				hw->aq.asq_last_status = old_asq_status;
+			} else {
+				retry_attempt = true;
+				goto retry;
+			}
+		}
+	}
+
 	return status;
 }
 
diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.c b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
index 2206d2d..bbf1b12 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_txrx.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
@@ -586,6 +586,20 @@ void i40e_free_tx_resources(struct i40e_ring *tx_ring)
 }
 
 /**
+ * i40e_get_head - Retrieve head from head writeback
+ * @tx_ring:  tx ring to fetch head of
+ *
+ * Returns value of Tx ring head based on value stored
+ * in head write-back location
+ **/
+static inline u32 i40e_get_head(struct i40e_ring *tx_ring)
+{
+	void *head = (struct i40e_tx_desc *)tx_ring->desc + tx_ring->count;
+
+	return le32_to_cpu(*(volatile __le32 *)head);
+}
+
+/**
  * i40e_get_tx_pending - how many tx descriptors not processed
  * @tx_ring: the ring of descriptors
  *
@@ -594,10 +608,16 @@ void i40e_free_tx_resources(struct i40e_ring *tx_ring)
  **/
 static u32 i40e_get_tx_pending(struct i40e_ring *ring)
 {
-	u32 ntu = ((ring->next_to_clean <= ring->next_to_use)
-			? ring->next_to_use
-			: ring->next_to_use + ring->count);
-	return ntu - ring->next_to_clean;
+	u32 head, tail;
+
+	head = i40e_get_head(ring);
+	tail = readl(ring->tail);
+
+	if (head != tail)
+		return (head < tail) ?
+			tail - head : (tail + ring->count - head);
+
+	return 0;
 }
 
 /**
@@ -606,6 +626,8 @@ static u32 i40e_get_tx_pending(struct i40e_ring *ring)
  **/
 static bool i40e_check_tx_hang(struct i40e_ring *tx_ring)
 {
+	u32 tx_done = tx_ring->stats.packets;
+	u32 tx_done_old = tx_ring->tx_stats.tx_done_old;
 	u32 tx_pending = i40e_get_tx_pending(tx_ring);
 	struct i40e_pf *pf = tx_ring->vsi->back;
 	bool ret = false;
@@ -623,41 +645,25 @@ static bool i40e_check_tx_hang(struct i40e_ring *tx_ring)
 	 * run the check_tx_hang logic with a transmit completion
 	 * pending but without time to complete it yet.
 	 */
-	if ((tx_ring->tx_stats.tx_done_old == tx_ring->stats.packets) &&
-	    (tx_pending >= I40E_MIN_DESC_PENDING)) {
+	if ((tx_done_old == tx_done) && tx_pending) {
 		/* make sure it is true for two checks in a row */
 		ret = test_and_set_bit(__I40E_HANG_CHECK_ARMED,
 				       &tx_ring->state);
-	} else if ((tx_ring->tx_stats.tx_done_old == tx_ring->stats.packets) &&
-		   (tx_pending < I40E_MIN_DESC_PENDING) &&
-		   (tx_pending > 0)) {
+	} else if (tx_done_old == tx_done &&
+		   (tx_pending < I40E_MIN_DESC_PENDING) && (tx_pending > 0)) {
 		if (I40E_DEBUG_FLOW & pf->hw.debug_mask)
 			dev_info(tx_ring->dev, "HW needs some more descs to do a cacheline flush. tx_pending %d, queue %d",
 				 tx_pending, tx_ring->queue_index);
 		pf->tx_sluggish_count++;
 	} else {
 		/* update completed stats and disarm the hang check */
-		tx_ring->tx_stats.tx_done_old = tx_ring->stats.packets;
+		tx_ring->tx_stats.tx_done_old = tx_done;
 		clear_bit(__I40E_HANG_CHECK_ARMED, &tx_ring->state);
 	}
 
 	return ret;
 }
 
-/**
- * i40e_get_head - Retrieve head from head writeback
- * @tx_ring:  tx ring to fetch head of
- *
- * Returns value of Tx ring head based on value stored
- * in head write-back location
- **/
-static inline u32 i40e_get_head(struct i40e_ring *tx_ring)
-{
-	void *head = (struct i40e_tx_desc *)tx_ring->desc + tx_ring->count;
-
-	return le32_to_cpu(*(volatile __le32 *)head);
-}
-
 #define WB_STRIDE 0x3
 
 /**
@@ -2140,6 +2146,67 @@ static int i40e_maybe_stop_tx(struct i40e_ring *tx_ring, int size)
 }
 
 /**
+ * i40e_chk_linearize - Check if there are more than 8 fragments per packet
+ * @skb:      send buffer
+ * @tx_flags: collected send information
+ * @hdr_len:  size of the packet header
+ *
+ * Note: Our HW can't scatter-gather more than 8 fragments to build
+ * a packet on the wire and so we need to figure out the cases where we
+ * need to linearize the skb.
+ **/
+static bool i40e_chk_linearize(struct sk_buff *skb, u32 tx_flags,
+			       const u8 hdr_len)
+{
+	struct skb_frag_struct *frag;
+	bool linearize = false;
+	unsigned int size = 0;
+	u16 num_frags;
+	u16 gso_segs;
+
+	num_frags = skb_shinfo(skb)->nr_frags;
+	gso_segs = skb_shinfo(skb)->gso_segs;
+
+	if (tx_flags & (I40E_TX_FLAGS_TSO | I40E_TX_FLAGS_FSO)) {
+		u16 j = 1;
+
+		if (num_frags < (I40E_MAX_BUFFER_TXD))
+			goto linearize_chk_done;
+		/* try the simple math, if we have too many frags per segment */
+		if (DIV_ROUND_UP((num_frags + gso_segs), gso_segs) >
+		    I40E_MAX_BUFFER_TXD) {
+			linearize = true;
+			goto linearize_chk_done;
+		}
+		frag = &skb_shinfo(skb)->frags[0];
+		size = hdr_len;
+		/* we might still have more fragments per segment */
+		do {
+			size += skb_frag_size(frag);
+			frag++; j++;
+			if (j == I40E_MAX_BUFFER_TXD) {
+				if (size < skb_shinfo(skb)->gso_size) {
+					linearize = true;
+					break;
+				}
+				j = 1;
+				size -= skb_shinfo(skb)->gso_size;
+				if (size)
+					j++;
+				size += hdr_len;
+			}
+			num_frags--;
+		} while (num_frags);
+	} else {
+		if (num_frags >= I40E_MAX_BUFFER_TXD)
+			linearize = true;
+	}
+
+linearize_chk_done:
+	return linearize;
+}
+
+/**
  * i40e_tx_map - Build the Tx descriptor
  * @tx_ring:  ring to send buffer on
  * @skb:      send buffer
@@ -2396,6 +2463,10 @@ static netdev_tx_t i40e_xmit_frame_ring(struct sk_buff *skb,
 	if (tsyn)
 		tx_flags |= I40E_TX_FLAGS_TSYN;
 
+	if (i40e_chk_linearize(skb, tx_flags, hdr_len))
+		if (skb_linearize(skb))
+			goto out_drop;
+
 	skb_tx_timestamp(skb);
 
 	/* always enable CRC insertion offload */
diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.h b/drivers/net/ethernet/intel/i40e/i40e_txrx.h
index 18b0023..dff0bae 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_txrx.h
+++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.h
@@ -112,6 +112,7 @@ enum i40e_dyn_idx_t {
 
 #define i40e_rx_desc i40e_32byte_rx_desc
 
+#define I40E_MAX_BUFFER_TXD	8
 #define I40E_MIN_TX_LEN		17
 #define I40E_MAX_DATA_PER_TXD	8192
 
diff --git a/drivers/net/ethernet/intel/i40evf/i40e_txrx.c b/drivers/net/ethernet/intel/i40evf/i40e_txrx.c
index 2900438..7088915 100644
--- a/drivers/net/ethernet/intel/i40evf/i40e_txrx.c
+++ b/drivers/net/ethernet/intel/i40evf/i40e_txrx.c
@@ -126,6 +126,20 @@ void i40evf_free_tx_resources(struct i40e_ring *tx_ring)
 }
 
 /**
+ * i40e_get_head - Retrieve head from head writeback
+ * @tx_ring:  tx ring to fetch head of
+ *
+ * Returns value of Tx ring head based on value stored
+ * in head write-back location
+ **/
+static inline u32 i40e_get_head(struct i40e_ring *tx_ring)
+{
+	void *head = (struct i40e_tx_desc *)tx_ring->desc + tx_ring->count;
+
+	return le32_to_cpu(*(volatile __le32 *)head);
+}
+
+/**
  * i40e_get_tx_pending - how many tx descriptors not processed
  * @tx_ring: the ring of descriptors
  *
@@ -134,10 +148,16 @@ void i40evf_free_tx_resources(struct i40e_ring *tx_ring)
  **/
 static u32 i40e_get_tx_pending(struct i40e_ring *ring)
 {
-	u32 ntu = ((ring->next_to_clean <= ring->next_to_use)
-			? ring->next_to_use
-			: ring->next_to_use + ring->count);
-	return ntu - ring->next_to_clean;
+	u32 head, tail;
+
+	head = i40e_get_head(ring);
+	tail = readl(ring->tail);
+
+	if (head != tail)
+		return (head < tail) ?
+			tail - head : (tail + ring->count - head);
+
+	return 0;
 }
 
 /**
@@ -146,6 +166,8 @@ static u32 i40e_get_tx_pending(struct i40e_ring *ring)
  **/
 static bool i40e_check_tx_hang(struct i40e_ring *tx_ring)
 {
+	u32 tx_done = tx_ring->stats.packets;
+	u32 tx_done_old = tx_ring->tx_stats.tx_done_old;
 	u32 tx_pending = i40e_get_tx_pending(tx_ring);
 	bool ret = false;
 
@@ -162,36 +184,20 @@ static bool i40e_check_tx_hang(struct i40e_ring *tx_ring)
 	 * run the check_tx_hang logic with a transmit completion
 	 * pending but without time to complete it yet.
 	 */
-	if ((tx_ring->tx_stats.tx_done_old == tx_ring->stats.packets) &&
-	    (tx_pending >= I40E_MIN_DESC_PENDING)) {
+	if ((tx_done_old == tx_done) && tx_pending) {
 		/* make sure it is true for two checks in a row */
 		ret = test_and_set_bit(__I40E_HANG_CHECK_ARMED,
 				       &tx_ring->state);
-	} else if (!(tx_ring->tx_stats.tx_done_old == tx_ring->stats.packets) ||
-		   !(tx_pending < I40E_MIN_DESC_PENDING) ||
-		   !(tx_pending > 0)) {
+	} else if (tx_done_old == tx_done &&
+		   (tx_pending < I40E_MIN_DESC_PENDING) && (tx_pending > 0)) {
 		/* update completed stats and disarm the hang check */
-		tx_ring->tx_stats.tx_done_old = tx_ring->stats.packets;
+		tx_ring->tx_stats.tx_done_old = tx_done;
 		clear_bit(__I40E_HANG_CHECK_ARMED, &tx_ring->state);
 	}
 
 	return ret;
 }
 
-/**
- * i40e_get_head - Retrieve head from head writeback
- * @tx_ring:  tx ring to fetch head of
- *
- * Returns value of Tx ring head based on value stored
- * in head write-back location
- **/
-static inline u32 i40e_get_head(struct i40e_ring *tx_ring)
-{
-	void *head = (struct i40e_tx_desc *)tx_ring->desc + tx_ring->count;
-
-	return le32_to_cpu(*(volatile __le32 *)head);
-}
-
 #define WB_STRIDE 0x3
 
 /**
@@ -1206,17 +1212,16 @@ static int i40e_tso(struct i40e_ring *tx_ring, struct sk_buff *skb,
 	if (err < 0)
 		return err;
 
-	if (protocol == htons(ETH_P_IP)) {
-		iph = skb->encapsulation ? inner_ip_hdr(skb) : ip_hdr(skb);
+	iph = skb->encapsulation ? inner_ip_hdr(skb) : ip_hdr(skb);
+	ipv6h = skb->encapsulation ? inner_ipv6_hdr(skb) : ipv6_hdr(skb);
+
+	if (iph->version == 4) {
 		tcph = skb->encapsulation ? inner_tcp_hdr(skb) : tcp_hdr(skb);
 		iph->tot_len = 0;
 		iph->check = 0;
 		tcph->check = ~csum_tcpudp_magic(iph->saddr, iph->daddr,
 						 0, IPPROTO_TCP, 0);
-	} else if (skb_is_gso_v6(skb)) {
-
-		ipv6h = skb->encapsulation ? inner_ipv6_hdr(skb)
-					   : ipv6_hdr(skb);
+	} else if (ipv6h->version == 6) {
 		tcph = skb->encapsulation ? inner_tcp_hdr(skb) : tcp_hdr(skb);
 		ipv6h->payload_len = 0;
 		tcph->check = ~csum_ipv6_magic(&ipv6h->saddr, &ipv6h->daddr,
@@ -1274,13 +1279,9 @@ static void i40e_tx_enable_csum(struct sk_buff *skb, u32 tx_flags,
 					 I40E_TX_CTX_EXT_IP_IPV4_NO_CSUM;
 			}
 		} else if (tx_flags & I40E_TX_FLAGS_IPV6) {
-			if (tx_flags & I40E_TX_FLAGS_TSO) {
-				*cd_tunneling |= I40E_TX_CTX_EXT_IP_IPV6;
+			*cd_tunneling |= I40E_TX_CTX_EXT_IP_IPV6;
+			if (tx_flags & I40E_TX_FLAGS_TSO)
 				ip_hdr(skb)->check = 0;
-			} else {
-				*cd_tunneling |=
-					 I40E_TX_CTX_EXT_IP_IPV4_NO_CSUM;
-			}
 		}
 
 		/* Now set the ctx descriptor fields */
@@ -1290,6 +1291,11 @@ static void i40e_tx_enable_csum(struct sk_buff *skb, u32 tx_flags,
 				   ((skb_inner_network_offset(skb) -
 					skb_transport_offset(skb)) >> 1) <<
 				   I40E_TXD_CTX_QW0_NATLEN_SHIFT;
+		if (this_ip_hdr->version == 6) {
+			tx_flags &= ~I40E_TX_FLAGS_IPV4;
+			tx_flags |= I40E_TX_FLAGS_IPV6;
+		}
+
 
 	} else {
 		network_hdr_len = skb_network_header_len(skb);
@@ -1380,6 +1386,67 @@ static void i40e_create_tx_ctx(struct i40e_ring *tx_ring,
 	context_desc->type_cmd_tso_mss = cpu_to_le64(cd_type_cmd_tso_mss);
 }
 
+ /**
+ * i40e_chk_linearize - Check if there are more than 8 fragments per packet
+ * @skb:      send buffer
+ * @tx_flags: collected send information
+ * @hdr_len:  size of the packet header
+ *
+ * Note: Our HW can't scatter-gather more than 8 fragments to build
+ * a packet on the wire and so we need to figure out the cases where we
+ * need to linearize the skb.
+ **/
+static bool i40e_chk_linearize(struct sk_buff *skb, u32 tx_flags,
+			       const u8 hdr_len)
+{
+	struct skb_frag_struct *frag;
+	bool linearize = false;
+	unsigned int size = 0;
+	u16 num_frags;
+	u16 gso_segs;
+
+	num_frags = skb_shinfo(skb)->nr_frags;
+	gso_segs = skb_shinfo(skb)->gso_segs;
+
+	if (tx_flags & (I40E_TX_FLAGS_TSO | I40E_TX_FLAGS_FSO)) {
+		u16 j = 1;
+
+		if (num_frags < (I40E_MAX_BUFFER_TXD))
+			goto linearize_chk_done;
+		/* try the simple math, if we have too many frags per segment */
+		if (DIV_ROUND_UP((num_frags + gso_segs), gso_segs) >
+		    I40E_MAX_BUFFER_TXD) {
+			linearize = true;
+			goto linearize_chk_done;
+		}
+		frag = &skb_shinfo(skb)->frags[0];
+		size = hdr_len;
+		/* we might still have more fragments per segment */
+		do {
+			size += skb_frag_size(frag);
+			frag++; j++;
+			if (j == I40E_MAX_BUFFER_TXD) {
+				if (size < skb_shinfo(skb)->gso_size) {
+					linearize = true;
+					break;
+				}
+				j = 1;
+				size -= skb_shinfo(skb)->gso_size;
+				if (size)
+					j++;
+				size += hdr_len;
+			}
+			num_frags--;
+		} while (num_frags);
+	} else {
+		if (num_frags >= I40E_MAX_BUFFER_TXD)
+			linearize = true;
+	}
+
+linearize_chk_done:
+	return linearize;
+}
+
 /**
  * i40e_tx_map - Build the Tx descriptor
  * @tx_ring:  ring to send buffer on
@@ -1654,6 +1721,10 @@ static netdev_tx_t i40e_xmit_frame_ring(struct sk_buff *skb,
 	else if (tso)
 		tx_flags |= I40E_TX_FLAGS_TSO;
 
+	if (i40e_chk_linearize(skb, tx_flags, hdr_len))
+		if (skb_linearize(skb))
+			goto out_drop;
+
 	skb_tx_timestamp(skb);
 
 	/* always enable CRC insertion offload */
diff --git a/drivers/net/ethernet/intel/i40evf/i40e_txrx.h b/drivers/net/ethernet/intel/i40evf/i40e_txrx.h
index 4e15903..c950a03 100644
--- a/drivers/net/ethernet/intel/i40evf/i40e_txrx.h
+++ b/drivers/net/ethernet/intel/i40evf/i40e_txrx.h
@@ -112,6 +112,7 @@ enum i40e_dyn_idx_t {
 
 #define i40e_rx_desc i40e_32byte_rx_desc
 
+#define I40E_MAX_BUFFER_TXD	8
 #define I40E_MIN_TX_LEN		17
 #define I40E_MAX_DATA_PER_TXD	8192
 
diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c
index 96208f1..2db6532 100644
--- a/drivers/net/ethernet/marvell/mvneta.c
+++ b/drivers/net/ethernet/marvell/mvneta.c
@@ -2658,16 +2658,11 @@ static int mvneta_stop(struct net_device *dev)
 static int mvneta_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
 {
 	struct mvneta_port *pp = netdev_priv(dev);
-	int ret;
 
 	if (!pp->phy_dev)
 		return -ENOTSUPP;
 
-	ret = phy_mii_ioctl(pp->phy_dev, ifr, cmd);
-	if (!ret)
-		mvneta_adjust_link(dev);
-
-	return ret;
+	return phy_mii_ioctl(pp->phy_dev, ifr, cmd);
 }
 
 /* Ethtool methods */
diff --git a/drivers/net/ethernet/mellanox/mlx4/cmd.c b/drivers/net/ethernet/mellanox/mlx4/cmd.c
index a681d7c..546ca42 100644
--- a/drivers/net/ethernet/mellanox/mlx4/cmd.c
+++ b/drivers/net/ethernet/mellanox/mlx4/cmd.c
@@ -724,7 +724,8 @@ static int mlx4_cmd_wait(struct mlx4_dev *dev, u64 in_param, u64 *out_param,
 		 * on the host, we deprecate the error message for this
 		 * specific command/input_mod/opcode_mod/fw-status to be debug.
 		 */
-		if (op == MLX4_CMD_SET_PORT && in_modifier == 1 &&
+		if (op == MLX4_CMD_SET_PORT &&
+		    (in_modifier == 1 || in_modifier == 2) &&
 		    op_modifier == 0 && context->fw_status == CMD_STAT_BAD_SIZE)
 			mlx4_dbg(dev, "command 0x%x failed: fw status = 0x%x\n",
 				 op, context->fw_status);
@@ -1993,7 +1994,6 @@ static void mlx4_master_do_cmd(struct mlx4_dev *dev, int slave, u8 cmd,
 			goto reset_slave;
 		slave_state[slave].vhcr_dma = ((u64) param) << 48;
 		priv->mfunc.master.slave_state[slave].cookie = 0;
-		mutex_init(&priv->mfunc.master.gen_eqe_mutex[slave]);
 		break;
 	case MLX4_COMM_CMD_VHCR1:
 		if (slave_state[slave].last_cmd != MLX4_COMM_CMD_VHCR0)
@@ -2225,6 +2225,7 @@ int mlx4_multi_func_init(struct mlx4_dev *dev)
 		for (i = 0; i < dev->num_slaves; ++i) {
 			s_state = &priv->mfunc.master.slave_state[i];
 			s_state->last_cmd = MLX4_COMM_CMD_RESET;
+			mutex_init(&priv->mfunc.master.gen_eqe_mutex[i]);
 			for (j = 0; j < MLX4_EVENT_TYPES_NUM; ++j)
 				s_state->event_eq[j].eqn = -1;
 			__raw_writel((__force u32) 0,
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
index 2a210c4..3485acf 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
@@ -1698,8 +1698,6 @@ int mlx4_en_start_port(struct net_device *dev)
 	/* Schedule multicast task to populate multicast list */
 	queue_work(mdev->workqueue, &priv->rx_mode_task);
 
-	mlx4_set_stats_bitmap(mdev->dev, &priv->stats_bitmap);
-
 #ifdef CONFIG_MLX4_EN_VXLAN
 	if (priv->mdev->dev->caps.tunnel_offload_mode == MLX4_TUNNEL_OFFLOAD_MODE_VXLAN)
 		vxlan_get_rx_port(dev);
@@ -2807,13 +2805,6 @@ int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port,
 	netif_carrier_off(dev);
 	mlx4_en_set_default_moderation(priv);
 
-	err = register_netdev(dev);
-	if (err) {
-		en_err(priv, "Netdev registration failed for port %d\n", port);
-		goto out;
-	}
-	priv->registered = 1;
-
 	en_warn(priv, "Using %d TX rings\n", prof->tx_ring_num);
 	en_warn(priv, "Using %d RX rings\n", prof->rx_ring_num);
 
@@ -2853,6 +2844,16 @@ int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port,
 		queue_delayed_work(mdev->workqueue, &priv->service_task,
 				   SERVICE_TASK_DELAY);
 
+	mlx4_set_stats_bitmap(mdev->dev, &priv->stats_bitmap);
+
+	err = register_netdev(dev);
+	if (err) {
+		en_err(priv, "Netdev registration failed for port %d\n", port);
+		goto out;
+	}
+
+	priv->registered = 1;
+
 	return 0;
 
 out:
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_selftest.c b/drivers/net/ethernet/mellanox/mlx4/en_selftest.c
index 2d8ee66..a61009f 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_selftest.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_selftest.c
@@ -81,12 +81,14 @@ static int mlx4_en_test_loopback(struct mlx4_en_priv *priv)
 {
 	u32 loopback_ok = 0;
 	int i;
-
+	bool gro_enabled;
 
         priv->loopback_ok = 0;
 	priv->validate_loopback = 1;
+	gro_enabled = priv->dev->features & NETIF_F_GRO;
 
 	mlx4_en_update_loopback_state(priv->dev, priv->dev->features);
+	priv->dev->features &= ~NETIF_F_GRO;
 
 	/* xmit */
 	if (mlx4_en_test_loopback_xmit(priv)) {
@@ -108,6 +110,10 @@ static int mlx4_en_test_loopback(struct mlx4_en_priv *priv)
 mlx4_en_test_loopback_exit:
 
 	priv->validate_loopback = 0;
+
+	if (gro_enabled)
+		priv->dev->features |= NETIF_F_GRO;
+
 	mlx4_en_update_loopback_state(priv->dev, priv->dev->features);
 	return !loopback_ok;
 }
diff --git a/drivers/net/ethernet/mellanox/mlx4/eq.c b/drivers/net/ethernet/mellanox/mlx4/eq.c
index 264bc15..6e70ffe 100644
--- a/drivers/net/ethernet/mellanox/mlx4/eq.c
+++ b/drivers/net/ethernet/mellanox/mlx4/eq.c
@@ -153,12 +153,10 @@ void mlx4_gen_slave_eqe(struct work_struct *work)
 
 		/* All active slaves need to receive the event */
 		if (slave == ALL_SLAVES) {
-			for (i = 0; i < dev->num_slaves; i++) {
-				if (i != dev->caps.function &&
-				    master->slave_state[i].active)
-					if (mlx4_GEN_EQE(dev, i, eqe))
-						mlx4_warn(dev, "Failed to generate event for slave %d\n",
-							  i);
+			for (i = 0; i <= dev->persist->num_vfs; i++) {
+				if (mlx4_GEN_EQE(dev, i, eqe))
+					mlx4_warn(dev, "Failed to generate event for slave %d\n",
+						  i);
 			}
 		} else {
 			if (mlx4_GEN_EQE(dev, slave, eqe))
@@ -203,13 +201,11 @@ static void mlx4_slave_event(struct mlx4_dev *dev, int slave,
 			     struct mlx4_eqe *eqe)
 {
 	struct mlx4_priv *priv = mlx4_priv(dev);
-	struct mlx4_slave_state *s_slave =
-		&priv->mfunc.master.slave_state[slave];
 
-	if (!s_slave->active) {
-		/*mlx4_warn(dev, "Trying to pass event to inactive slave\n");*/
+	if (slave < 0 || slave > dev->persist->num_vfs ||
+	    slave == dev->caps.function ||
+	    !priv->mfunc.master.slave_state[slave].active)
 		return;
-	}
 
 	slave_event(dev, slave, eqe);
 }
diff --git a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
index 2a8268e..ebbe244 100644
--- a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
+++ b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
@@ -453,7 +453,7 @@ struct mlx4_en_port_stats {
 	unsigned long rx_chksum_none;
 	unsigned long rx_chksum_complete;
 	unsigned long tx_chksum_offload;
-#define NUM_PORT_STATS		9
+#define NUM_PORT_STATS		10
 };
 
 struct mlx4_en_perf_stats {
diff --git a/drivers/net/ethernet/mellanox/mlx4/qp.c b/drivers/net/ethernet/mellanox/mlx4/qp.c
index 2bb8553..eda29db 100644
--- a/drivers/net/ethernet/mellanox/mlx4/qp.c
+++ b/drivers/net/ethernet/mellanox/mlx4/qp.c
@@ -412,7 +412,6 @@ err_icm:
 
 EXPORT_SYMBOL_GPL(mlx4_qp_alloc);
 
-#define MLX4_UPDATE_QP_SUPPORTED_ATTRS MLX4_UPDATE_QP_SMAC
 int mlx4_update_qp(struct mlx4_dev *dev, u32 qpn,
 		   enum mlx4_update_qp_attr attr,
 		   struct mlx4_update_qp_params *params)
diff --git a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c
index 486e3d2..6e413ac 100644
--- a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c
+++ b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c
@@ -713,7 +713,7 @@ static int update_vport_qp_param(struct mlx4_dev *dev,
 	struct mlx4_vport_oper_state *vp_oper;
 	struct mlx4_priv *priv;
 	u32 qp_type;
-	int port;
+	int port, err = 0;
 
 	port = (qpc->pri_path.sched_queue & 0x40) ? 2 : 1;
 	priv = mlx4_priv(dev);
@@ -738,7 +738,9 @@ static int update_vport_qp_param(struct mlx4_dev *dev,
 			} else {
 				struct mlx4_update_qp_params params = {.flags = 0};
 
-				mlx4_update_qp(dev, qpn, MLX4_UPDATE_QP_VSD, &params);
+				err = mlx4_update_qp(dev, qpn, MLX4_UPDATE_QP_VSD, &params);
+				if (err)
+					goto out;
 			}
 		}
 
@@ -773,7 +775,8 @@ static int update_vport_qp_param(struct mlx4_dev *dev,
 		qpc->pri_path.feup |= MLX4_FSM_FORCE_ETH_SRC_MAC;
 		qpc->pri_path.grh_mylmc = (0x80 & qpc->pri_path.grh_mylmc) + vp_oper->mac_idx;
 	}
-	return 0;
+out:
+	return err;
 }
 
 static int mpt_mask(struct mlx4_dev *dev)
@@ -3092,6 +3095,12 @@ int mlx4_GEN_EQE(struct mlx4_dev *dev, int slave, struct mlx4_eqe *eqe)
 	if (!priv->mfunc.master.slave_state)
 		return -EINVAL;
 
+	/* check for slave valid, slave not PF, and slave active */
+	if (slave < 0 || slave > dev->persist->num_vfs ||
+	    slave == dev->caps.function ||
+	    !priv->mfunc.master.slave_state[slave].active)
+		return 0;
+
 	event_eq = &priv->mfunc.master.slave_state[slave].event_eq[eqe->type];
 
 	/* Create the event only if the slave is registered */
diff --git a/drivers/net/ethernet/pasemi/pasemi_mac.c b/drivers/net/ethernet/pasemi/pasemi_mac.c
index 44e8d7d..57a6e6c 100644
--- a/drivers/net/ethernet/pasemi/pasemi_mac.c
+++ b/drivers/net/ethernet/pasemi/pasemi_mac.c
@@ -1239,11 +1239,9 @@ static int pasemi_mac_open(struct net_device *dev)
 	if (mac->phydev)
 		phy_start(mac->phydev);
 
-	init_timer(&mac->tx->clean_timer);
-	mac->tx->clean_timer.function = pasemi_mac_tx_timer;
-	mac->tx->clean_timer.data = (unsigned long)mac->tx;
-	mac->tx->clean_timer.expires = jiffies+HZ;
-	add_timer(&mac->tx->clean_timer);
+	setup_timer(&mac->tx->clean_timer, pasemi_mac_tx_timer,
+		    (unsigned long)mac->tx);
+	mod_timer(&mac->tx->clean_timer, jiffies + HZ);
 
 	return 0;
 
diff --git a/drivers/net/ethernet/qlogic/netxen/netxen_nic.h b/drivers/net/ethernet/qlogic/netxen/netxen_nic.h
index 6e426ae..0a5e204 100644
--- a/drivers/net/ethernet/qlogic/netxen/netxen_nic.h
+++ b/drivers/net/ethernet/qlogic/netxen/netxen_nic.h
@@ -354,7 +354,7 @@ struct cmd_desc_type0 {
 
 } __attribute__ ((aligned(64)));
 
-/* Note: sizeof(rcv_desc) should always be a mutliple of 2 */
+/* Note: sizeof(rcv_desc) should always be a multiple of 2 */
 struct rcv_desc {
 	__le16 reference_handle;
 	__le16 reserved;
@@ -499,7 +499,7 @@ struct uni_data_desc{
 #define NETXEN_IMAGE_START	0x43000	/* compressed image */
 #define NETXEN_SECONDARY_START	0x200000	/* backup images */
 #define NETXEN_PXE_START	0x3E0000	/* PXE boot rom */
-#define NETXEN_USER_START	0x3E8000	/* Firmare info */
+#define NETXEN_USER_START	0x3E8000	/* Firmware info */
 #define NETXEN_FIXED_START	0x3F0000	/* backup of crbinit */
 #define NETXEN_USER_START_OLD	NETXEN_PXE_START /* very old flash */
 
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
index fa43176..f221126 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
@@ -314,7 +314,7 @@ struct qlcnic_fdt {
 #define QLCNIC_BRDCFG_START	0x4000		/* board config */
 #define QLCNIC_BOOTLD_START	0x10000		/* bootld */
 #define QLCNIC_IMAGE_START	0x43000		/* compressed image */
-#define QLCNIC_USER_START	0x3E8000	/* Firmare info */
+#define QLCNIC_USER_START	0x3E8000	/* Firmware info */
 
 #define QLCNIC_FW_VERSION_OFFSET	(QLCNIC_USER_START+0x408)
 #define QLCNIC_FW_SIZE_OFFSET		(QLCNIC_USER_START+0x40c)
diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c
index ad0020a..c70ab40 100644
--- a/drivers/net/ethernet/realtek/r8169.c
+++ b/drivers/net/ethernet/realtek/r8169.c
@@ -2561,7 +2561,7 @@ static int rtl_check_firmware(struct rtl8169_private *tp, struct rtl_fw *rtl_fw)
 	int rc = -EINVAL;
 
 	if (!rtl_fw_format_ok(tp, rtl_fw)) {
-		netif_err(tp, ifup, dev, "invalid firwmare\n");
+		netif_err(tp, ifup, dev, "invalid firmware\n");
 		goto out;
 	}
 
@@ -5067,8 +5067,6 @@ static void rtl_hw_reset(struct rtl8169_private *tp)
 	RTL_W8(ChipCmd, CmdReset);
 
 	rtl_udelay_loop_wait_low(tp, &rtl_chipcmd_cond, 100, 100);
-
-	netdev_reset_queue(tp->dev);
 }
 
 static void rtl_request_uncached_firmware(struct rtl8169_private *tp)
@@ -7049,7 +7047,6 @@ static netdev_tx_t rtl8169_start_xmit(struct sk_buff *skb,
 	u32 status, len;
 	u32 opts[2];
 	int frags;
-	bool stop_queue;
 
 	if (unlikely(!TX_FRAGS_READY_FOR(tp, skb_shinfo(skb)->nr_frags))) {
 		netif_err(tp, drv, dev, "BUG! Tx Ring full when queue awake!\n");
@@ -7090,8 +7087,6 @@ static netdev_tx_t rtl8169_start_xmit(struct sk_buff *skb,
 
 	txd->opts2 = cpu_to_le32(opts[1]);
 
-	netdev_sent_queue(dev, skb->len);
-
 	skb_tx_timestamp(skb);
 
 	/* Force memory writes to complete before releasing descriptor */
@@ -7106,16 +7101,11 @@ static netdev_tx_t rtl8169_start_xmit(struct sk_buff *skb,
 
 	tp->cur_tx += frags + 1;
 
-	stop_queue = !TX_FRAGS_READY_FOR(tp, MAX_SKB_FRAGS);
+	RTL_W8(TxPoll, NPQ);
 
-	if (!skb->xmit_more || stop_queue ||
-	    netif_xmit_stopped(netdev_get_tx_queue(dev, 0))) {
-		RTL_W8(TxPoll, NPQ);
-
-		mmiowb();
-	}
+	mmiowb();
 
-	if (stop_queue) {
+	if (!TX_FRAGS_READY_FOR(tp, MAX_SKB_FRAGS)) {
 		/* Avoid wrongly optimistic queue wake-up: rtl_tx thread must
 		 * not miss a ring update when it notices a stopped queue.
 		 */
@@ -7198,7 +7188,6 @@ static void rtl8169_pcierr_interrupt(struct net_device *dev)
 static void rtl_tx(struct net_device *dev, struct rtl8169_private *tp)
 {
 	unsigned int dirty_tx, tx_left;
-	unsigned int bytes_compl = 0, pkts_compl = 0;
 
 	dirty_tx = tp->dirty_tx;
 	smp_rmb();
@@ -7222,8 +7211,10 @@ static void rtl_tx(struct net_device *dev, struct rtl8169_private *tp)
 		rtl8169_unmap_tx_skb(&tp->pci_dev->dev, tx_skb,
 				     tp->TxDescArray + entry);
 		if (status & LastFrag) {
-			pkts_compl++;
-			bytes_compl += tx_skb->skb->len;
+			u64_stats_update_begin(&tp->tx_stats.syncp);
+			tp->tx_stats.packets++;
+			tp->tx_stats.bytes += tx_skb->skb->len;
+			u64_stats_update_end(&tp->tx_stats.syncp);
 			dev_kfree_skb_any(tx_skb->skb);
 			tx_skb->skb = NULL;
 		}
@@ -7232,13 +7223,6 @@ static void rtl_tx(struct net_device *dev, struct rtl8169_private *tp)
 	}
 
 	if (tp->dirty_tx != dirty_tx) {
-		netdev_completed_queue(tp->dev, pkts_compl, bytes_compl);
-
-		u64_stats_update_begin(&tp->tx_stats.syncp);
-		tp->tx_stats.packets += pkts_compl;
-		tp->tx_stats.bytes += bytes_compl;
-		u64_stats_update_end(&tp->tx_stats.syncp);
-
 		tp->dirty_tx = dirty_tx;
 		/* Sync with rtl8169_start_xmit:
 		 * - publish dirty_tx ring index (write barrier)
diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
index 4da8bd2..736d5d1 100644
--- a/drivers/net/ethernet/renesas/sh_eth.c
+++ b/drivers/net/ethernet/renesas/sh_eth.c
@@ -508,7 +508,6 @@ static struct sh_eth_cpu_data r8a779x_data = {
 	.tpauser	= 1,
 	.hw_swap	= 1,
 	.rmiimode	= 1,
-	.shift_rd0	= 1,
 };
 
 static void sh_eth_set_rate_sh7724(struct net_device *ndev)
@@ -1392,6 +1391,9 @@ static void sh_eth_dev_exit(struct net_device *ndev)
 	msleep(2); /* max frame time at 10 Mbps < 1250 us */
 	sh_eth_get_stats(ndev);
 	sh_eth_reset(ndev);
+
+	/* Set MAC address again */
+	update_mac_address(ndev);
 }
 
 /* free Tx skb function */
@@ -1407,6 +1409,8 @@ static int sh_eth_txfree(struct net_device *ndev)
 		txdesc = &mdp->tx_ring[entry];
 		if (txdesc->status & cpu_to_edmac(mdp, TD_TACT))
 			break;
+		/* TACT bit must be checked before all the following reads */
+		rmb();
 		/* Free the original skb. */
 		if (mdp->tx_skbuff[entry]) {
 			dma_unmap_single(&ndev->dev, txdesc->addr,
@@ -1444,6 +1448,8 @@ static int sh_eth_rx(struct net_device *ndev, u32 intr_status, int *quota)
 	limit = boguscnt;
 	rxdesc = &mdp->rx_ring[entry];
 	while (!(rxdesc->status & cpu_to_edmac(mdp, RD_RACT))) {
+		/* RACT bit must be checked before all the following reads */
+		rmb();
 		desc_status = edmac_to_cpu(mdp, rxdesc->status);
 		pkt_len = rxdesc->frame_length;
 
@@ -1455,8 +1461,8 @@ static int sh_eth_rx(struct net_device *ndev, u32 intr_status, int *quota)
 
 		/* In case of almost all GETHER/ETHERs, the Receive Frame State
 		 * (RFS) bits in the Receive Descriptor 0 are from bit 9 to
-		 * bit 0. However, in case of the R8A7740, R8A779x, and
-		 * R7S72100 the RFS bits are from bit 25 to bit 16. So, the
+		 * bit 0. However, in case of the R8A7740 and R7S72100
+		 * the RFS bits are from bit 25 to bit 16. So, the
 		 * driver needs right shifting by 16.
 		 */
 		if (mdp->cd->shift_rd0)
@@ -1523,6 +1529,7 @@ static int sh_eth_rx(struct net_device *ndev, u32 intr_status, int *quota)
 			skb_checksum_none_assert(skb);
 			rxdesc->addr = dma_addr;
 		}
+		wmb(); /* RACT bit must be set after all the above writes */
 		if (entry >= mdp->num_rx_ring - 1)
 			rxdesc->status |=
 				cpu_to_edmac(mdp, RD_RACT | RD_RFP | RD_RDEL);
@@ -1535,7 +1542,7 @@ static int sh_eth_rx(struct net_device *ndev, u32 intr_status, int *quota)
 	/* If we don't need to check status, don't. -KDU */
 	if (!(sh_eth_read(ndev, EDRRR) & EDRRR_R)) {
 		/* fix the values for the next receiving if RDE is set */
-		if (intr_status & EESR_RDE) {
+		if (intr_status & EESR_RDE && mdp->reg_offset[RDFAR] != 0) {
 			u32 count = (sh_eth_read(ndev, RDFAR) -
 				     sh_eth_read(ndev, RDLAR)) >> 4;
 
@@ -2174,7 +2181,7 @@ static int sh_eth_start_xmit(struct sk_buff *skb, struct net_device *ndev)
 	}
 	spin_unlock_irqrestore(&mdp->lock, flags);
 
-	if (skb_padto(skb, ETH_ZLEN))
+	if (skb_put_padto(skb, ETH_ZLEN))
 		return NETDEV_TX_OK;
 
 	entry = mdp->cur_tx % mdp->num_tx_ring;
@@ -2192,6 +2199,7 @@ static int sh_eth_start_xmit(struct sk_buff *skb, struct net_device *ndev)
 	}
 	txdesc->buffer_length = skb->len;
 
+	wmb(); /* TACT bit must be set after all the above writes */
 	if (entry >= mdp->num_tx_ring - 1)
 		txdesc->status |= cpu_to_edmac(mdp, TD_TACT | TD_TDLE);
 	else
diff --git a/drivers/net/ethernet/rocker/rocker.c b/drivers/net/ethernet/rocker/rocker.c
index 34389b6a..5cecec2 100644
--- a/drivers/net/ethernet/rocker/rocker.c
+++ b/drivers/net/ethernet/rocker/rocker.c
@@ -1257,9 +1257,9 @@ static void rocker_port_set_enable(struct rocker_port *rocker_port, bool enable)
 	u64 val = rocker_read64(rocker_port->rocker, PORT_PHYS_ENABLE);
 
 	if (enable)
-		val |= 1 << rocker_port->lport;
+		val |= 1ULL << rocker_port->lport;
 	else
-		val &= ~(1 << rocker_port->lport);
+		val &= ~(1ULL << rocker_port->lport);
 	rocker_write64(rocker_port->rocker, PORT_PHYS_ENABLE, val);
 }
 
@@ -4201,6 +4201,8 @@ static int rocker_probe_ports(struct rocker *rocker)
 
 	alloc_size = sizeof(struct rocker_port *) * rocker->port_count;
 	rocker->ports = kmalloc(alloc_size, GFP_KERNEL);
+	if (!rocker->ports)
+		return -ENOMEM;
 	for (i = 0; i < rocker->port_count; i++) {
 		err = rocker_probe_port(rocker, i);
 		if (err)
@@ -4466,10 +4468,16 @@ static int rocker_port_master_changed(struct net_device *dev)
 	struct net_device *master = netdev_master_upper_dev_get(dev);
 	int err = 0;
 
+	/* There are currently three cases handled here:
+	 * 1. Joining a bridge
+	 * 2. Leaving a previously joined bridge
+	 * 3. Other, e.g. being added to or removed from a bond or openvswitch,
+	 *    in which case nothing is done
+	 */
 	if (master && master->rtnl_link_ops &&
 	    !strcmp(master->rtnl_link_ops->kind, "bridge"))
 		err = rocker_port_bridge_join(rocker_port, master);
-	else
+	else if (rocker_port_is_bridged(rocker_port))
 		err = rocker_port_bridge_leave(rocker_port);
 
 	return err;
diff --git a/drivers/net/ethernet/smsc/smc91c92_cs.c b/drivers/net/ethernet/smsc/smc91c92_cs.c
index 6b33127..3449893 100644
--- a/drivers/net/ethernet/smsc/smc91c92_cs.c
+++ b/drivers/net/ethernet/smsc/smc91c92_cs.c
@@ -1070,11 +1070,8 @@ static int smc_open(struct net_device *dev)
     smc->packets_waiting = 0;
 
     smc_reset(dev);
-    init_timer(&smc->media);
-    smc->media.function = media_check;
-    smc->media.data = (u_long) dev;
-    smc->media.expires = jiffies + HZ;
-    add_timer(&smc->media);
+    setup_timer(&smc->media, media_check, (u_long)dev);
+    mod_timer(&smc->media, jiffies + HZ);
 
     return 0;
 } /* smc_open */
diff --git a/drivers/net/ethernet/smsc/smc91x.c b/drivers/net/ethernet/smsc/smc91x.c
index 88a55f9..8678e39 100644
--- a/drivers/net/ethernet/smsc/smc91x.c
+++ b/drivers/net/ethernet/smsc/smc91x.c
@@ -91,6 +91,11 @@ static const char version[] =
 
 #include "smc91x.h"
 
+#if defined(CONFIG_ASSABET_NEPONSET)
+#include <mach/assabet.h>
+#include <mach/neponset.h>
+#endif
+
 #ifndef SMC_NOWAIT
 # define SMC_NOWAIT		0
 #endif
@@ -2243,10 +2248,9 @@ static int smc_drv_probe(struct platform_device *pdev)
 	const struct of_device_id *match = NULL;
 	struct smc_local *lp;
 	struct net_device *ndev;
-	struct resource *res;
+	struct resource *res, *ires;
 	unsigned int __iomem *addr;
 	unsigned long irq_flags = SMC_IRQ_FLAGS;
-	unsigned long irq_resflags;
 	int ret;
 
 	ndev = alloc_etherdev(sizeof(struct smc_local));
@@ -2338,25 +2342,23 @@ static int smc_drv_probe(struct platform_device *pdev)
 		goto out_free_netdev;
 	}
 
-	ndev->irq = platform_get_irq(pdev, 0);
-	if (ndev->irq <= 0) {
+	ires = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+	if (!ires) {
 		ret = -ENODEV;
 		goto out_release_io;
 	}
-	/*
-	 * If this platform does not specify any special irqflags, or if
-	 * the resource supplies a trigger, override the irqflags with
-	 * the trigger flags from the resource.
-	 */
-	irq_resflags = irqd_get_trigger_type(irq_get_irq_data(ndev->irq));
-	if (irq_flags == -1 || irq_resflags & IRQF_TRIGGER_MASK)
-		irq_flags = irq_resflags & IRQF_TRIGGER_MASK;
+
+	ndev->irq = ires->start;
+
+	if (irq_flags == -1 || ires->flags & IRQF_TRIGGER_MASK)
+		irq_flags = ires->flags & IRQF_TRIGGER_MASK;
 
 	ret = smc_request_attrib(pdev, ndev);
 	if (ret)
 		goto out_release_io;
-#if defined(CONFIG_SA1100_ASSABET)
-	neponset_ncr_set(NCR_ENET_OSC_EN);
+#if defined(CONFIG_ASSABET_NEPONSET)
+	if (machine_is_assabet() && machine_has_neponset())
+		neponset_ncr_set(NCR_ENET_OSC_EN);
 #endif
 	platform_set_drvdata(pdev, ndev);
 	ret = smc_enable_device(pdev);
diff --git a/drivers/net/ethernet/smsc/smc91x.h b/drivers/net/ethernet/smsc/smc91x.h
index be67baf..3a18501 100644
--- a/drivers/net/ethernet/smsc/smc91x.h
+++ b/drivers/net/ethernet/smsc/smc91x.h
@@ -39,14 +39,7 @@
  * Define your architecture specific bus configuration parameters here.
  */
 
-#if defined(CONFIG_ARCH_LUBBOCK) ||\
-    defined(CONFIG_MACH_MAINSTONE) ||\
-    defined(CONFIG_MACH_ZYLONITE) ||\
-    defined(CONFIG_MACH_LITTLETON) ||\
-    defined(CONFIG_MACH_ZYLONITE2) ||\
-    defined(CONFIG_ARCH_VIPER) ||\
-    defined(CONFIG_MACH_STARGATE2) ||\
-    defined(CONFIG_ARCH_VERSATILE)
+#if defined(CONFIG_ARM)
 
 #include <asm/mach-types.h>
 
@@ -74,95 +67,8 @@
 /* We actually can't write halfwords properly if not word aligned */
 static inline void SMC_outw(u16 val, void __iomem *ioaddr, int reg)
 {
-	if ((machine_is_mainstone() || machine_is_stargate2()) && reg & 2) {
-		unsigned int v = val << 16;
-		v |= readl(ioaddr + (reg & ~2)) & 0xffff;
-		writel(v, ioaddr + (reg & ~2));
-	} else {
-		writew(val, ioaddr + reg);
-	}
-}
-
-#elif defined(CONFIG_SA1100_PLEB)
-/* We can only do 16-bit reads and writes in the static memory space. */
-#define SMC_CAN_USE_8BIT	1
-#define SMC_CAN_USE_16BIT	1
-#define SMC_CAN_USE_32BIT	0
-#define SMC_IO_SHIFT		0
-#define SMC_NOWAIT		1
-
-#define SMC_inb(a, r)		readb((a) + (r))
-#define SMC_insb(a, r, p, l)	readsb((a) + (r), p, (l))
-#define SMC_inw(a, r)		readw((a) + (r))
-#define SMC_insw(a, r, p, l)	readsw((a) + (r), p, l)
-#define SMC_outb(v, a, r)	writeb(v, (a) + (r))
-#define SMC_outsb(a, r, p, l)	writesb((a) + (r), p, (l))
-#define SMC_outw(v, a, r)	writew(v, (a) + (r))
-#define SMC_outsw(a, r, p, l)	writesw((a) + (r), p, l)
-
-#define SMC_IRQ_FLAGS		(-1)
-
-#elif defined(CONFIG_SA1100_ASSABET)
-
-#include <mach/neponset.h>
-
-/* We can only do 8-bit reads and writes in the static memory space. */
-#define SMC_CAN_USE_8BIT	1
-#define SMC_CAN_USE_16BIT	0
-#define SMC_CAN_USE_32BIT	0
-#define SMC_NOWAIT		1
-
-/* The first two address lines aren't connected... */
-#define SMC_IO_SHIFT		2
-
-#define SMC_inb(a, r)		readb((a) + (r))
-#define SMC_outb(v, a, r)	writeb(v, (a) + (r))
-#define SMC_insb(a, r, p, l)	readsb((a) + (r), p, (l))
-#define SMC_outsb(a, r, p, l)	writesb((a) + (r), p, (l))
-#define SMC_IRQ_FLAGS		(-1)	/* from resource */
-
-#elif	defined(CONFIG_MACH_LOGICPD_PXA270) ||	\
-	defined(CONFIG_MACH_NOMADIK_8815NHK)
-
-#define SMC_CAN_USE_8BIT	0
-#define SMC_CAN_USE_16BIT	1
-#define SMC_CAN_USE_32BIT	0
-#define SMC_IO_SHIFT		0
-#define SMC_NOWAIT		1
-
-#define SMC_inw(a, r)		readw((a) + (r))
-#define SMC_outw(v, a, r)	writew(v, (a) + (r))
-#define SMC_insw(a, r, p, l)	readsw((a) + (r), p, l)
-#define SMC_outsw(a, r, p, l)	writesw((a) + (r), p, l)
-
-#elif	defined(CONFIG_ARCH_INNOKOM) || \
-	defined(CONFIG_ARCH_PXA_IDP) || \
-	defined(CONFIG_ARCH_RAMSES) || \
-	defined(CONFIG_ARCH_PCM027)
-
-#define SMC_CAN_USE_8BIT	1
-#define SMC_CAN_USE_16BIT	1
-#define SMC_CAN_USE_32BIT	1
-#define SMC_IO_SHIFT		0
-#define SMC_NOWAIT		1
-#define SMC_USE_PXA_DMA		1
-
-#define SMC_inb(a, r)		readb((a) + (r))
-#define SMC_inw(a, r)		readw((a) + (r))
-#define SMC_inl(a, r)		readl((a) + (r))
-#define SMC_outb(v, a, r)	writeb(v, (a) + (r))
-#define SMC_outl(v, a, r)	writel(v, (a) + (r))
-#define SMC_insl(a, r, p, l)	readsl((a) + (r), p, l)
-#define SMC_outsl(a, r, p, l)	writesl((a) + (r), p, l)
-#define SMC_insw(a, r, p, l)	readsw((a) + (r), p, l)
-#define SMC_outsw(a, r, p, l)	writesw((a) + (r), p, l)
-#define SMC_IRQ_FLAGS		(-1)	/* from resource */
-
-/* We actually can't write halfwords properly if not word aligned */
-static inline void
-SMC_outw(u16 val, void __iomem *ioaddr, int reg)
-{
-	if (reg & 2) {
+	if ((machine_is_mainstone() || machine_is_stargate2() ||
+	     machine_is_pxa_idp()) && reg & 2) {
 		unsigned int v = val << 16;
 		v |= readl(ioaddr + (reg & ~2)) & 0xffff;
 		writel(v, ioaddr + (reg & ~2));
@@ -237,20 +143,6 @@ SMC_outw(u16 val, void __iomem *ioaddr, int reg)
 #define RPC_LSA_DEFAULT         RPC_LED_100_10
 #define RPC_LSB_DEFAULT         RPC_LED_TX_RX
 
-#elif defined(CONFIG_ARCH_MSM)
-
-#define SMC_CAN_USE_8BIT	0
-#define SMC_CAN_USE_16BIT	1
-#define SMC_CAN_USE_32BIT	0
-#define SMC_NOWAIT		1
-
-#define SMC_inw(a, r)		readw((a) + (r))
-#define SMC_outw(v, a, r)	writew(v, (a) + (r))
-#define SMC_insw(a, r, p, l)	readsw((a) + (r), p, l)
-#define SMC_outsw(a, r, p, l)	writesw((a) + (r), p, l)
-
-#define SMC_IRQ_FLAGS		IRQF_TRIGGER_HIGH
-
 #elif defined(CONFIG_COLDFIRE)
 
 #define SMC_CAN_USE_8BIT	0
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 55e89b3..a0ea84f 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -310,11 +310,11 @@ bool stmmac_eee_init(struct stmmac_priv *priv)
 		spin_lock_irqsave(&priv->lock, flags);
 		if (!priv->eee_active) {
 			priv->eee_active = 1;
-			init_timer(&priv->eee_ctrl_timer);
-			priv->eee_ctrl_timer.function = stmmac_eee_ctrl_timer;
-			priv->eee_ctrl_timer.data = (unsigned long)priv;
-			priv->eee_ctrl_timer.expires = STMMAC_LPI_T(eee_timer);
-			add_timer(&priv->eee_ctrl_timer);
+			setup_timer(&priv->eee_ctrl_timer,
+				    stmmac_eee_ctrl_timer,
+				    (unsigned long)priv);
+			mod_timer(&priv->eee_ctrl_timer,
+				  STMMAC_LPI_T(eee_timer));
 
 			priv->hw->mac->set_eee_timer(priv->hw,
 						     STMMAC_DEFAULT_LIT_LS,
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
index fb846eb..f9b42f1 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
@@ -272,6 +272,37 @@ static int stmmac_pltfr_probe(struct platform_device *pdev)
 	struct stmmac_priv *priv = NULL;
 	struct plat_stmmacenet_data *plat_dat = NULL;
 	const char *mac = NULL;
+	int irq, wol_irq, lpi_irq;
+
+	/* Get IRQ information early to have an ability to ask for deferred
+	 * probe if needed before we went too far with resource allocation.
+	 */
+	irq = platform_get_irq_byname(pdev, "macirq");
+	if (irq < 0) {
+		if (irq != -EPROBE_DEFER) {
+			dev_err(dev,
+				"MAC IRQ configuration information not found\n");
+		}
+		return irq;
+	}
+
+	/* On some platforms e.g. SPEAr the wake up irq differs from the mac irq
+	 * The external wake up irq can be passed through the platform code
+	 * named as "eth_wake_irq"
+	 *
+	 * In case the wake up interrupt is not passed from the platform
+	 * so the driver will continue to use the mac irq (ndev->irq)
+	 */
+	wol_irq = platform_get_irq_byname(pdev, "eth_wake_irq");
+	if (wol_irq < 0) {
+		if (wol_irq == -EPROBE_DEFER)
+			return -EPROBE_DEFER;
+		wol_irq = irq;
+	}
+
+	lpi_irq = platform_get_irq_byname(pdev, "eth_lpi");
+	if (lpi_irq == -EPROBE_DEFER)
+		return -EPROBE_DEFER;
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	addr = devm_ioremap_resource(dev, res);
@@ -323,39 +354,15 @@ static int stmmac_pltfr_probe(struct platform_device *pdev)
 		return PTR_ERR(priv);
 	}
 
+	/* Copy IRQ values to priv structure which is now avaialble */
+	priv->dev->irq = irq;
+	priv->wol_irq = wol_irq;
+	priv->lpi_irq = lpi_irq;
+
 	/* Get MAC address if available (DT) */
 	if (mac)
 		memcpy(priv->dev->dev_addr, mac, ETH_ALEN);
 
-	/* Get the MAC information */
-	priv->dev->irq = platform_get_irq_byname(pdev, "macirq");
-	if (priv->dev->irq < 0) {
-		if (priv->dev->irq != -EPROBE_DEFER) {
-			netdev_err(priv->dev,
-				   "MAC IRQ configuration information not found\n");
-		}
-		return priv->dev->irq;
-	}
-
-	/*
-	 * On some platforms e.g. SPEAr the wake up irq differs from the mac irq
-	 * The external wake up irq can be passed through the platform code
-	 * named as "eth_wake_irq"
-	 *
-	 * In case the wake up interrupt is not passed from the platform
-	 * so the driver will continue to use the mac irq (ndev->irq)
-	 */
-	priv->wol_irq = platform_get_irq_byname(pdev, "eth_wake_irq");
-	if (priv->wol_irq < 0) {
-		if (priv->wol_irq == -EPROBE_DEFER)
-			return -EPROBE_DEFER;
-		priv->wol_irq = priv->dev->irq;
-	}
-
-	priv->lpi_irq = platform_get_irq_byname(pdev, "eth_lpi");
-	if (priv->lpi_irq == -EPROBE_DEFER)
-		return -EPROBE_DEFER;
-
 	platform_set_drvdata(pdev, priv->dev);
 
 	pr_debug("STMMAC platform driver registration completed");
diff --git a/drivers/net/ethernet/sun/niu.c b/drivers/net/ethernet/sun/niu.c
index 4b51f90..0c5842a 100644
--- a/drivers/net/ethernet/sun/niu.c
+++ b/drivers/net/ethernet/sun/niu.c
@@ -6989,10 +6989,10 @@ static int niu_class_to_ethflow(u64 class, int *flow_type)
 		*flow_type = IP_USER_FLOW;
 		break;
 	default:
-		return 0;
+		return -EINVAL;
 	}
 
-	return 1;
+	return 0;
 }
 
 static int niu_ethflow_to_class(int flow_type, u64 *class)
@@ -7198,11 +7198,9 @@ static int niu_get_ethtool_tcam_entry(struct niu *np,
 	class = (tp->key[0] & TCAM_V4KEY0_CLASS_CODE) >>
 		TCAM_V4KEY0_CLASS_CODE_SHIFT;
 	ret = niu_class_to_ethflow(class, &fsp->flow_type);
-
 	if (ret < 0) {
 		netdev_info(np->dev, "niu%d: niu_class_to_ethflow failed\n",
 			    parent->index);
-		ret = -EINVAL;
 		goto out;
 	}
 
diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c
index 7d8dd0d..a1bbaf6 100644
--- a/drivers/net/ethernet/ti/cpsw.c
+++ b/drivers/net/ethernet/ti/cpsw.c
@@ -1103,7 +1103,7 @@ static inline void cpsw_add_dual_emac_def_ale_entries(
 	cpsw_ale_add_mcast(priv->ale, priv->ndev->broadcast,
 			   port_mask, ALE_VLAN, slave->port_vlan, 0);
 	cpsw_ale_add_ucast(priv->ale, priv->mac_addr,
-		priv->host_port, ALE_VLAN, slave->port_vlan);
+		priv->host_port, ALE_VLAN | ALE_SECURE, slave->port_vlan);
 }
 
 static void soft_reset_slave(struct cpsw_slave *slave)
@@ -2466,6 +2466,7 @@ static int cpsw_remove(struct platform_device *pdev)
 	return 0;
 }
 
+#ifdef CONFIG_PM_SLEEP
 static int cpsw_suspend(struct device *dev)
 {
 	struct platform_device	*pdev = to_platform_device(dev);
@@ -2518,11 +2519,9 @@ static int cpsw_resume(struct device *dev)
 	}
 	return 0;
 }
+#endif
 
-static const struct dev_pm_ops cpsw_pm_ops = {
-	.suspend	= cpsw_suspend,
-	.resume		= cpsw_resume,
-};
+static SIMPLE_DEV_PM_OPS(cpsw_pm_ops, cpsw_suspend, cpsw_resume);
 
 static const struct of_device_id cpsw_of_mtable[] = {
 	{ .compatible = "ti,cpsw", },
diff --git a/drivers/net/ethernet/ti/davinci_mdio.c b/drivers/net/ethernet/ti/davinci_mdio.c
index 98655b4..c00084d 100644
--- a/drivers/net/ethernet/ti/davinci_mdio.c
+++ b/drivers/net/ethernet/ti/davinci_mdio.c
@@ -423,6 +423,7 @@ static int davinci_mdio_remove(struct platform_device *pdev)
 	return 0;
 }
 
+#ifdef CONFIG_PM_SLEEP
 static int davinci_mdio_suspend(struct device *dev)
 {
 	struct davinci_mdio_data *data = dev_get_drvdata(dev);
@@ -464,10 +465,10 @@ static int davinci_mdio_resume(struct device *dev)
 
 	return 0;
 }
+#endif
 
 static const struct dev_pm_ops davinci_mdio_pm_ops = {
-	.suspend_late	= davinci_mdio_suspend,
-	.resume_early	= davinci_mdio_resume,
+	SET_LATE_SYSTEM_SLEEP_PM_OPS(davinci_mdio_suspend, davinci_mdio_resume)
 };
 
 #if IS_ENABLED(CONFIG_OF)
diff --git a/drivers/net/ethernet/wiznet/w5100.c b/drivers/net/ethernet/wiznet/w5100.c
index a495931..0e0fbb5 100644
--- a/drivers/net/ethernet/wiznet/w5100.c
+++ b/drivers/net/ethernet/wiznet/w5100.c
@@ -498,9 +498,9 @@ static int w5100_napi_poll(struct napi_struct *napi, int budget)
 	}
 
 	if (rx_count < budget) {
+		napi_complete(napi);
 		w5100_write(priv, W5100_IMR, IR_S0);
 		mmiowb();
-		napi_complete(napi);
 	}
 
 	return rx_count;
diff --git a/drivers/net/ethernet/wiznet/w5300.c b/drivers/net/ethernet/wiznet/w5300.c
index 09322d9..4b31000 100644
--- a/drivers/net/ethernet/wiznet/w5300.c
+++ b/drivers/net/ethernet/wiznet/w5300.c
@@ -418,9 +418,9 @@ static int w5300_napi_poll(struct napi_struct *napi, int budget)
 	}
 
 	if (rx_count < budget) {
+		napi_complete(napi);
 		w5300_write(priv, W5300_IMR, IR_S0);
 		mmiowb();
-		napi_complete(napi);
 	}
 
 	return rx_count;
diff --git a/drivers/net/ethernet/xscale/ixp4xx_eth.c b/drivers/net/ethernet/xscale/ixp4xx_eth.c
index f7e0f0f..9e16a28 100644
--- a/drivers/net/ethernet/xscale/ixp4xx_eth.c
+++ b/drivers/net/ethernet/xscale/ixp4xx_eth.c
@@ -938,7 +938,7 @@ static void eth_set_mcast_list(struct net_device *dev)
 	int i;
 	static const u8 allmulti[] = { 0x01, 0x00, 0x00, 0x00, 0x00, 0x00 };
 
-	if (dev->flags & IFF_ALLMULTI) {
+	if ((dev->flags & IFF_ALLMULTI) && !(dev->flags & IFF_PROMISC)) {
 		for (i = 0; i < ETH_ALEN; i++) {
 			__raw_writel(allmulti[i], &port->regs->mcast_addr[i]);
 			__raw_writel(allmulti[i], &port->regs->mcast_mask[i]);
diff --git a/drivers/net/ipvlan/ipvlan.h b/drivers/net/ipvlan/ipvlan.h
index 924ea98..54549a6 100644
--- a/drivers/net/ipvlan/ipvlan.h
+++ b/drivers/net/ipvlan/ipvlan.h
@@ -114,7 +114,9 @@ unsigned int ipvlan_mac_hash(const unsigned char *addr);
 rx_handler_result_t ipvlan_handle_frame(struct sk_buff **pskb);
 int ipvlan_queue_xmit(struct sk_buff *skb, struct net_device *dev);
 void ipvlan_ht_addr_add(struct ipvl_dev *ipvlan, struct ipvl_addr *addr);
-bool ipvlan_addr_busy(struct ipvl_dev *ipvlan, void *iaddr, bool is_v6);
+struct ipvl_addr *ipvlan_find_addr(const struct ipvl_dev *ipvlan,
+				   const void *iaddr, bool is_v6);
+bool ipvlan_addr_busy(struct ipvl_port *port, void *iaddr, bool is_v6);
 struct ipvl_addr *ipvlan_ht_addr_lookup(const struct ipvl_port *port,
 					const void *iaddr, bool is_v6);
 void ipvlan_ht_addr_del(struct ipvl_addr *addr, bool sync);
diff --git a/drivers/net/ipvlan/ipvlan_core.c b/drivers/net/ipvlan/ipvlan_core.c
index 2a17500..b7877a1 100644
--- a/drivers/net/ipvlan/ipvlan_core.c
+++ b/drivers/net/ipvlan/ipvlan_core.c
@@ -81,19 +81,20 @@ void ipvlan_ht_addr_add(struct ipvl_dev *ipvlan, struct ipvl_addr *addr)
 	hash = (addr->atype == IPVL_IPV6) ?
 	       ipvlan_get_v6_hash(&addr->ip6addr) :
 	       ipvlan_get_v4_hash(&addr->ip4addr);
-	hlist_add_head_rcu(&addr->hlnode, &port->hlhead[hash]);
+	if (hlist_unhashed(&addr->hlnode))
+		hlist_add_head_rcu(&addr->hlnode, &port->hlhead[hash]);
 }
 
 void ipvlan_ht_addr_del(struct ipvl_addr *addr, bool sync)
 {
-	hlist_del_rcu(&addr->hlnode);
+	hlist_del_init_rcu(&addr->hlnode);
 	if (sync)
 		synchronize_rcu();
 }
 
-bool ipvlan_addr_busy(struct ipvl_dev *ipvlan, void *iaddr, bool is_v6)
+struct ipvl_addr *ipvlan_find_addr(const struct ipvl_dev *ipvlan,
+				   const void *iaddr, bool is_v6)
 {
-	struct ipvl_port *port = ipvlan->port;
 	struct ipvl_addr *addr;
 
 	list_for_each_entry(addr, &ipvlan->addrs, anode) {
@@ -101,12 +102,21 @@ bool ipvlan_addr_busy(struct ipvl_dev *ipvlan, void *iaddr, bool is_v6)
 		    ipv6_addr_equal(&addr->ip6addr, iaddr)) ||
 		    (!is_v6 && addr->atype == IPVL_IPV4 &&
 		    addr->ip4addr.s_addr == ((struct in_addr *)iaddr)->s_addr))
-			return true;
+			return addr;
 	}
+	return NULL;
+}
+
+bool ipvlan_addr_busy(struct ipvl_port *port, void *iaddr, bool is_v6)
+{
+	struct ipvl_dev *ipvlan;
 
-	if (ipvlan_ht_addr_lookup(port, iaddr, is_v6))
-		return true;
+	ASSERT_RTNL();
 
+	list_for_each_entry(ipvlan, &port->ipvlans, pnode) {
+		if (ipvlan_find_addr(ipvlan, iaddr, is_v6))
+			return true;
+	}
 	return false;
 }
 
@@ -192,7 +202,8 @@ static void ipvlan_multicast_frame(struct ipvl_port *port, struct sk_buff *skb,
 	if (skb->protocol == htons(ETH_P_PAUSE))
 		return;
 
-	list_for_each_entry(ipvlan, &port->ipvlans, pnode) {
+	rcu_read_lock();
+	list_for_each_entry_rcu(ipvlan, &port->ipvlans, pnode) {
 		if (local && (ipvlan == in_dev))
 			continue;
 
@@ -219,6 +230,7 @@ static void ipvlan_multicast_frame(struct ipvl_port *port, struct sk_buff *skb,
 mcast_acct:
 		ipvlan_count_rx(ipvlan, len, ret == NET_RX_SUCCESS, true);
 	}
+	rcu_read_unlock();
 
 	/* Locally generated? ...Forward a copy to the main-device as
 	 * well. On the RX side we'll ignore it (wont give it to any
diff --git a/drivers/net/ipvlan/ipvlan_main.c b/drivers/net/ipvlan/ipvlan_main.c
index 4f4099d..4fa1420 100644
--- a/drivers/net/ipvlan/ipvlan_main.c
+++ b/drivers/net/ipvlan/ipvlan_main.c
@@ -505,7 +505,7 @@ static void ipvlan_link_delete(struct net_device *dev, struct list_head *head)
 	if (ipvlan->ipv6cnt > 0 || ipvlan->ipv4cnt > 0) {
 		list_for_each_entry_safe(addr, next, &ipvlan->addrs, anode) {
 			ipvlan_ht_addr_del(addr, !dev->dismantle);
-			list_del_rcu(&addr->anode);
+			list_del(&addr->anode);
 		}
 	}
 	list_del_rcu(&ipvlan->pnode);
@@ -607,7 +607,7 @@ static int ipvlan_add_addr6(struct ipvl_dev *ipvlan, struct in6_addr *ip6_addr)
 {
 	struct ipvl_addr *addr;
 
-	if (ipvlan_addr_busy(ipvlan, ip6_addr, true)) {
+	if (ipvlan_addr_busy(ipvlan->port, ip6_addr, true)) {
 		netif_err(ipvlan, ifup, ipvlan->dev,
 			  "Failed to add IPv6=%pI6c addr for %s intf\n",
 			  ip6_addr, ipvlan->dev->name);
@@ -620,9 +620,13 @@ static int ipvlan_add_addr6(struct ipvl_dev *ipvlan, struct in6_addr *ip6_addr)
 	addr->master = ipvlan;
 	memcpy(&addr->ip6addr, ip6_addr, sizeof(struct in6_addr));
 	addr->atype = IPVL_IPV6;
-	list_add_tail_rcu(&addr->anode, &ipvlan->addrs);
+	list_add_tail(&addr->anode, &ipvlan->addrs);
 	ipvlan->ipv6cnt++;
-	ipvlan_ht_addr_add(ipvlan, addr);
+	/* If the interface is not up, the address will be added to the hash
+	 * list by ipvlan_open.
+	 */
+	if (netif_running(ipvlan->dev))
+		ipvlan_ht_addr_add(ipvlan, addr);
 
 	return 0;
 }
@@ -631,12 +635,12 @@ static void ipvlan_del_addr6(struct ipvl_dev *ipvlan, struct in6_addr *ip6_addr)
 {
 	struct ipvl_addr *addr;
 
-	addr = ipvlan_ht_addr_lookup(ipvlan->port, ip6_addr, true);
+	addr = ipvlan_find_addr(ipvlan, ip6_addr, true);
 	if (!addr)
 		return;
 
 	ipvlan_ht_addr_del(addr, true);
-	list_del_rcu(&addr->anode);
+	list_del(&addr->anode);
 	ipvlan->ipv6cnt--;
 	WARN_ON(ipvlan->ipv6cnt < 0);
 	kfree_rcu(addr, rcu);
@@ -675,7 +679,7 @@ static int ipvlan_add_addr4(struct ipvl_dev *ipvlan, struct in_addr *ip4_addr)
 {
 	struct ipvl_addr *addr;
 
-	if (ipvlan_addr_busy(ipvlan, ip4_addr, false)) {
+	if (ipvlan_addr_busy(ipvlan->port, ip4_addr, false)) {
 		netif_err(ipvlan, ifup, ipvlan->dev,
 			  "Failed to add IPv4=%pI4 on %s intf.\n",
 			  ip4_addr, ipvlan->dev->name);
@@ -688,9 +692,13 @@ static int ipvlan_add_addr4(struct ipvl_dev *ipvlan, struct in_addr *ip4_addr)
 	addr->master = ipvlan;
 	memcpy(&addr->ip4addr, ip4_addr, sizeof(struct in_addr));
 	addr->atype = IPVL_IPV4;
-	list_add_tail_rcu(&addr->anode, &ipvlan->addrs);
+	list_add_tail(&addr->anode, &ipvlan->addrs);
 	ipvlan->ipv4cnt++;
-	ipvlan_ht_addr_add(ipvlan, addr);
+	/* If the interface is not up, the address will be added to the hash
+	 * list by ipvlan_open.
+	 */
+	if (netif_running(ipvlan->dev))
+		ipvlan_ht_addr_add(ipvlan, addr);
 	ipvlan_set_broadcast_mac_filter(ipvlan, true);
 
 	return 0;
@@ -700,12 +708,12 @@ static void ipvlan_del_addr4(struct ipvl_dev *ipvlan, struct in_addr *ip4_addr)
 {
 	struct ipvl_addr *addr;
 
-	addr = ipvlan_ht_addr_lookup(ipvlan->port, ip4_addr, false);
+	addr = ipvlan_find_addr(ipvlan, ip4_addr, false);
 	if (!addr)
 		return;
 
 	ipvlan_ht_addr_del(addr, true);
-	list_del_rcu(&addr->anode);
+	list_del(&addr->anode);
 	ipvlan->ipv4cnt--;
 	WARN_ON(ipvlan->ipv4cnt < 0);
 	if (!ipvlan->ipv4cnt)
diff --git a/drivers/net/macvtap.c b/drivers/net/macvtap.c
index e40fdfc..27ecc5c 100644
--- a/drivers/net/macvtap.c
+++ b/drivers/net/macvtap.c
@@ -654,11 +654,14 @@ static void macvtap_skb_to_vnet_hdr(struct macvtap_queue *q,
 	} /* else everything is zero */
 }
 
+/* Neighbour code has some assumptions on HH_DATA_MOD alignment */
+#define MACVTAP_RESERVE HH_DATA_OFF(ETH_HLEN)
+
 /* Get packet from user space buffer */
 static ssize_t macvtap_get_user(struct macvtap_queue *q, struct msghdr *m,
 				struct iov_iter *from, int noblock)
 {
-	int good_linear = SKB_MAX_HEAD(NET_IP_ALIGN);
+	int good_linear = SKB_MAX_HEAD(MACVTAP_RESERVE);
 	struct sk_buff *skb;
 	struct macvlan_dev *vlan;
 	unsigned long total_len = iov_iter_count(from);
@@ -722,7 +725,7 @@ static ssize_t macvtap_get_user(struct macvtap_queue *q, struct msghdr *m,
 			linear = macvtap16_to_cpu(q, vnet_hdr.hdr_len);
 	}
 
-	skb = macvtap_alloc_skb(&q->sk, NET_IP_ALIGN, copylen,
+	skb = macvtap_alloc_skb(&q->sk, MACVTAP_RESERVE, copylen,
 				linear, noblock, &err);
 	if (!skb)
 		goto err;
diff --git a/drivers/net/phy/amd-xgbe-phy.c b/drivers/net/phy/amd-xgbe-phy.c
index 9e3af54..32efbd4 100644
--- a/drivers/net/phy/amd-xgbe-phy.c
+++ b/drivers/net/phy/amd-xgbe-phy.c
@@ -92,6 +92,8 @@ MODULE_DESCRIPTION("AMD 10GbE (amd-xgbe) PHY driver");
 #define XGBE_PHY_CDR_RATE_PROPERTY	"amd,serdes-cdr-rate"
 #define XGBE_PHY_PQ_SKEW_PROPERTY	"amd,serdes-pq-skew"
 #define XGBE_PHY_TX_AMP_PROPERTY	"amd,serdes-tx-amp"
+#define XGBE_PHY_DFE_CFG_PROPERTY	"amd,serdes-dfe-tap-config"
+#define XGBE_PHY_DFE_ENA_PROPERTY	"amd,serdes-dfe-tap-enable"
 
 #define XGBE_PHY_SPEEDS			3
 #define XGBE_PHY_SPEED_1000		0
@@ -177,10 +179,12 @@ MODULE_DESCRIPTION("AMD 10GbE (amd-xgbe) PHY driver");
 #define SPEED_10000_BLWC		0
 #define SPEED_10000_CDR			0x7
 #define SPEED_10000_PLL			0x1
-#define SPEED_10000_PQ			0x1e
+#define SPEED_10000_PQ			0x12
 #define SPEED_10000_RATE		0x0
 #define SPEED_10000_TXAMP		0xa
 #define SPEED_10000_WORD		0x7
+#define SPEED_10000_DFE_TAP_CONFIG	0x1
+#define SPEED_10000_DFE_TAP_ENABLE	0x7f
 
 #define SPEED_2500_BLWC			1
 #define SPEED_2500_CDR			0x2
@@ -189,6 +193,8 @@ MODULE_DESCRIPTION("AMD 10GbE (amd-xgbe) PHY driver");
 #define SPEED_2500_RATE			0x1
 #define SPEED_2500_TXAMP		0xf
 #define SPEED_2500_WORD			0x1
+#define SPEED_2500_DFE_TAP_CONFIG	0x3
+#define SPEED_2500_DFE_TAP_ENABLE	0x0
 
 #define SPEED_1000_BLWC			1
 #define SPEED_1000_CDR			0x2
@@ -197,16 +203,25 @@ MODULE_DESCRIPTION("AMD 10GbE (amd-xgbe) PHY driver");
 #define SPEED_1000_RATE			0x3
 #define SPEED_1000_TXAMP		0xf
 #define SPEED_1000_WORD			0x1
+#define SPEED_1000_DFE_TAP_CONFIG	0x3
+#define SPEED_1000_DFE_TAP_ENABLE	0x0
 
 /* SerDes RxTx register offsets */
+#define RXTX_REG6			0x0018
 #define RXTX_REG20			0x0050
+#define RXTX_REG22			0x0058
 #define RXTX_REG114			0x01c8
+#define RXTX_REG129			0x0204
 
 /* SerDes RxTx register entry bit positions and sizes */
+#define RXTX_REG6_RESETB_RXD_INDEX	8
+#define RXTX_REG6_RESETB_RXD_WIDTH	1
 #define RXTX_REG20_BLWC_ENA_INDEX	2
 #define RXTX_REG20_BLWC_ENA_WIDTH	1
 #define RXTX_REG114_PQ_REG_INDEX	9
 #define RXTX_REG114_PQ_REG_WIDTH	7
+#define RXTX_REG129_RXDFE_CONFIG_INDEX	14
+#define RXTX_REG129_RXDFE_CONFIG_WIDTH	2
 
 /* Bit setting and getting macros
  *  The get macro will extract the current bit field value from within
@@ -333,6 +348,18 @@ static const u32 amd_xgbe_phy_serdes_tx_amp[] = {
 	SPEED_10000_TXAMP,
 };
 
+static const u32 amd_xgbe_phy_serdes_dfe_tap_cfg[] = {
+	SPEED_1000_DFE_TAP_CONFIG,
+	SPEED_2500_DFE_TAP_CONFIG,
+	SPEED_10000_DFE_TAP_CONFIG,
+};
+
+static const u32 amd_xgbe_phy_serdes_dfe_tap_ena[] = {
+	SPEED_1000_DFE_TAP_ENABLE,
+	SPEED_2500_DFE_TAP_ENABLE,
+	SPEED_10000_DFE_TAP_ENABLE,
+};
+
 enum amd_xgbe_phy_an {
 	AMD_XGBE_AN_READY = 0,
 	AMD_XGBE_AN_PAGE_RECEIVED,
@@ -393,6 +420,8 @@ struct amd_xgbe_phy_priv {
 	u32 serdes_cdr_rate[XGBE_PHY_SPEEDS];
 	u32 serdes_pq_skew[XGBE_PHY_SPEEDS];
 	u32 serdes_tx_amp[XGBE_PHY_SPEEDS];
+	u32 serdes_dfe_tap_cfg[XGBE_PHY_SPEEDS];
+	u32 serdes_dfe_tap_ena[XGBE_PHY_SPEEDS];
 
 	/* Auto-negotiation state machine support */
 	struct mutex an_mutex;
@@ -481,11 +510,16 @@ static void amd_xgbe_phy_serdes_complete_ratechange(struct phy_device *phydev)
 		status = XSIR0_IOREAD(priv, SIR0_STATUS);
 		if (XSIR_GET_BITS(status, SIR0_STATUS, RX_READY) &&
 		    XSIR_GET_BITS(status, SIR0_STATUS, TX_READY))
-			return;
+			goto rx_reset;
 	}
 
 	netdev_dbg(phydev->attached_dev, "SerDes rx/tx not ready (%#hx)\n",
 		   status);
+
+rx_reset:
+	/* Perform Rx reset for the DFE changes */
+	XRXTX_IOWRITE_BITS(priv, RXTX_REG6, RESETB_RXD, 0);
+	XRXTX_IOWRITE_BITS(priv, RXTX_REG6, RESETB_RXD, 1);
 }
 
 static int amd_xgbe_phy_xgmii_mode(struct phy_device *phydev)
@@ -534,6 +568,10 @@ static int amd_xgbe_phy_xgmii_mode(struct phy_device *phydev)
 			   priv->serdes_blwc[XGBE_PHY_SPEED_10000]);
 	XRXTX_IOWRITE_BITS(priv, RXTX_REG114, PQ_REG,
 			   priv->serdes_pq_skew[XGBE_PHY_SPEED_10000]);
+	XRXTX_IOWRITE_BITS(priv, RXTX_REG129, RXDFE_CONFIG,
+			   priv->serdes_dfe_tap_cfg[XGBE_PHY_SPEED_10000]);
+	XRXTX_IOWRITE(priv, RXTX_REG22,
+		      priv->serdes_dfe_tap_ena[XGBE_PHY_SPEED_10000]);
 
 	amd_xgbe_phy_serdes_complete_ratechange(phydev);
 
@@ -586,6 +624,10 @@ static int amd_xgbe_phy_gmii_2500_mode(struct phy_device *phydev)
 			   priv->serdes_blwc[XGBE_PHY_SPEED_2500]);
 	XRXTX_IOWRITE_BITS(priv, RXTX_REG114, PQ_REG,
 			   priv->serdes_pq_skew[XGBE_PHY_SPEED_2500]);
+	XRXTX_IOWRITE_BITS(priv, RXTX_REG129, RXDFE_CONFIG,
+			   priv->serdes_dfe_tap_cfg[XGBE_PHY_SPEED_2500]);
+	XRXTX_IOWRITE(priv, RXTX_REG22,
+		      priv->serdes_dfe_tap_ena[XGBE_PHY_SPEED_2500]);
 
 	amd_xgbe_phy_serdes_complete_ratechange(phydev);
 
@@ -638,6 +680,10 @@ static int amd_xgbe_phy_gmii_mode(struct phy_device *phydev)
 			   priv->serdes_blwc[XGBE_PHY_SPEED_1000]);
 	XRXTX_IOWRITE_BITS(priv, RXTX_REG114, PQ_REG,
 			   priv->serdes_pq_skew[XGBE_PHY_SPEED_1000]);
+	XRXTX_IOWRITE_BITS(priv, RXTX_REG129, RXDFE_CONFIG,
+			   priv->serdes_dfe_tap_cfg[XGBE_PHY_SPEED_1000]);
+	XRXTX_IOWRITE(priv, RXTX_REG22,
+		      priv->serdes_dfe_tap_ena[XGBE_PHY_SPEED_1000]);
 
 	amd_xgbe_phy_serdes_complete_ratechange(phydev);
 
@@ -1668,6 +1714,38 @@ static int amd_xgbe_phy_probe(struct phy_device *phydev)
 		       sizeof(priv->serdes_tx_amp));
 	}
 
+	if (device_property_present(phy_dev, XGBE_PHY_DFE_CFG_PROPERTY)) {
+		ret = device_property_read_u32_array(phy_dev,
+						     XGBE_PHY_DFE_CFG_PROPERTY,
+						     priv->serdes_dfe_tap_cfg,
+						     XGBE_PHY_SPEEDS);
+		if (ret) {
+			dev_err(dev, "invalid %s property\n",
+				XGBE_PHY_DFE_CFG_PROPERTY);
+			goto err_sir1;
+		}
+	} else {
+		memcpy(priv->serdes_dfe_tap_cfg,
+		       amd_xgbe_phy_serdes_dfe_tap_cfg,
+		       sizeof(priv->serdes_dfe_tap_cfg));
+	}
+
+	if (device_property_present(phy_dev, XGBE_PHY_DFE_ENA_PROPERTY)) {
+		ret = device_property_read_u32_array(phy_dev,
+						     XGBE_PHY_DFE_ENA_PROPERTY,
+						     priv->serdes_dfe_tap_ena,
+						     XGBE_PHY_SPEEDS);
+		if (ret) {
+			dev_err(dev, "invalid %s property\n",
+				XGBE_PHY_DFE_ENA_PROPERTY);
+			goto err_sir1;
+		}
+	} else {
+		memcpy(priv->serdes_dfe_tap_ena,
+		       amd_xgbe_phy_serdes_dfe_tap_ena,
+		       sizeof(priv->serdes_dfe_tap_ena));
+	}
+
 	phydev->priv = priv;
 
 	if (!priv->adev || acpi_disabled)
diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c
index cdcac6a..52cd8db 100644
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -236,6 +236,25 @@ static inline unsigned int phy_find_valid(unsigned int idx, u32 features)
 }
 
 /**
+ * phy_check_valid - check if there is a valid PHY setting which matches
+ *		     speed, duplex, and feature mask
+ * @speed: speed to match
+ * @duplex: duplex to match
+ * @features: A mask of the valid settings
+ *
+ * Description: Returns true if there is a valid setting, false otherwise.
+ */
+static inline bool phy_check_valid(int speed, int duplex, u32 features)
+{
+	unsigned int idx;
+
+	idx = phy_find_valid(phy_find_setting(speed, duplex), features);
+
+	return settings[idx].speed == speed && settings[idx].duplex == duplex &&
+		(settings[idx].setting & features);
+}
+
+/**
  * phy_sanitize_settings - make sure the PHY is set to supported speed and duplex
  * @phydev: the target phy_device struct
  *
@@ -1045,7 +1064,6 @@ int phy_init_eee(struct phy_device *phydev, bool clk_stop_enable)
 		int eee_lp, eee_cap, eee_adv;
 		u32 lp, cap, adv;
 		int status;
-		unsigned int idx;
 
 		/* Read phy status to properly get the right settings */
 		status = phy_read_status(phydev);
@@ -1077,8 +1095,7 @@ int phy_init_eee(struct phy_device *phydev, bool clk_stop_enable)
 
 		adv = mmd_eee_adv_to_ethtool_adv_t(eee_adv);
 		lp = mmd_eee_adv_to_ethtool_adv_t(eee_lp);
-		idx = phy_find_setting(phydev->speed, phydev->duplex);
-		if (!(lp & adv & settings[idx].setting))
+		if (!phy_check_valid(phydev->speed, phydev->duplex, lp & adv))
 			goto eee_exit_err;
 
 		if (clk_stop_enable) {
diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c
index 0e62274..7d39484 100644
--- a/drivers/net/team/team.c
+++ b/drivers/net/team/team.c
@@ -43,9 +43,7 @@
 
 static struct team_port *team_port_get_rcu(const struct net_device *dev)
 {
-	struct team_port *port = rcu_dereference(dev->rx_handler_data);
-
-	return team_port_exists(dev) ? port : NULL;
+	return rcu_dereference(dev->rx_handler_data);
 }
 
 static struct team_port *team_port_get_rtnl(const struct net_device *dev)
@@ -1732,11 +1730,11 @@ static int team_set_mac_address(struct net_device *dev, void *p)
 	if (dev->type == ARPHRD_ETHER && !is_valid_ether_addr(addr->sa_data))
 		return -EADDRNOTAVAIL;
 	memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
-	rcu_read_lock();
-	list_for_each_entry_rcu(port, &team->port_list, list)
+	mutex_lock(&team->lock);
+	list_for_each_entry(port, &team->port_list, list)
 		if (team->ops.port_change_dev_addr)
 			team->ops.port_change_dev_addr(team, port);
-	rcu_read_unlock();
+	mutex_unlock(&team->lock);
 	return 0;
 }
 
diff --git a/drivers/net/usb/Kconfig b/drivers/net/usb/Kconfig
index 3bd9678..7ba8d08 100644
--- a/drivers/net/usb/Kconfig
+++ b/drivers/net/usb/Kconfig
@@ -161,6 +161,7 @@ config USB_NET_AX8817X
 	    * Linksys USB200M
 	    * Netgear FA120
 	    * Sitecom LN-029
+	    * Sitecom LN-028
 	    * Intellinet USB 2.0 Ethernet
 	    * ST Lab USB 2.0 Ethernet
 	    * TrendNet TU2-ET100
diff --git a/drivers/net/usb/asix_common.c b/drivers/net/usb/asix_common.c
index 5c55f11..75d6f26 100644
--- a/drivers/net/usb/asix_common.c
+++ b/drivers/net/usb/asix_common.c
@@ -188,6 +188,8 @@ struct sk_buff *asix_tx_fixup(struct usbnet *dev, struct sk_buff *skb,
 		memcpy(skb_tail_pointer(skb), &padbytes, sizeof(padbytes));
 		skb_put(skb, sizeof(padbytes));
 	}
+
+	usbnet_set_skb_tx_stats(skb, 1, 0);
 	return skb;
 }
 
diff --git a/drivers/net/usb/asix_devices.c b/drivers/net/usb/asix_devices.c
index bf49792..1173a24 100644
--- a/drivers/net/usb/asix_devices.c
+++ b/drivers/net/usb/asix_devices.c
@@ -979,6 +979,10 @@ static const struct usb_device_id	products [] = {
 	USB_DEVICE (0x0df6, 0x0056),
 	.driver_info =  (unsigned long) &ax88178_info,
 }, {
+	// Sitecom LN-028 "USB 2.0 10/100/1000 Ethernet adapter"
+	USB_DEVICE (0x0df6, 0x061c),
+	.driver_info =  (unsigned long) &ax88178_info,
+}, {
 	// corega FEther USB2-TX
 	USB_DEVICE (0x07aa, 0x0017),
 	.driver_info =  (unsigned long) &ax8817x_info,
diff --git a/drivers/net/usb/cdc_ether.c b/drivers/net/usb/cdc_ether.c
index 9311a08..4545e78 100644
--- a/drivers/net/usb/cdc_ether.c
+++ b/drivers/net/usb/cdc_ether.c
@@ -522,6 +522,7 @@ static const struct driver_info wwan_info = {
 #define DELL_VENDOR_ID		0x413C
 #define REALTEK_VENDOR_ID	0x0bda
 #define SAMSUNG_VENDOR_ID	0x04e8
+#define LENOVO_VENDOR_ID	0x17ef
 
 static const struct usb_device_id	products[] = {
 /* BLACKLIST !!
@@ -702,6 +703,13 @@ static const struct usb_device_id	products[] = {
 	.driver_info = 0,
 },
 
+/* Lenovo Thinkpad USB 3.0 Ethernet Adapters (based on Realtek RTL8153) */
+{
+	USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x7205, USB_CLASS_COMM,
+			USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
+	.driver_info = 0,
+},
+
 /* WHITELIST!!!
  *
  * CDC Ether uses two interfaces, not necessarily consecutive.
diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c
index 80a844e..c3e4da9 100644
--- a/drivers/net/usb/cdc_ncm.c
+++ b/drivers/net/usb/cdc_ncm.c
@@ -1172,17 +1172,17 @@ cdc_ncm_fill_tx_frame(struct usbnet *dev, struct sk_buff *skb, __le32 sign)
 
 	/* return skb */
 	ctx->tx_curr_skb = NULL;
-	dev->net->stats.tx_packets += ctx->tx_curr_frame_num;
 
 	/* keep private stats: framing overhead and number of NTBs */
 	ctx->tx_overhead += skb_out->len - ctx->tx_curr_frame_payload;
 	ctx->tx_ntbs++;
 
-	/* usbnet has already counted all the framing overhead.
+	/* usbnet will count all the framing overhead by default.
 	 * Adjust the stats so that the tx_bytes counter show real
 	 * payload data instead.
 	 */
-	dev->net->stats.tx_bytes -= skb_out->len - ctx->tx_curr_frame_payload;
+	usbnet_set_skb_tx_stats(skb_out, n,
+				ctx->tx_curr_frame_payload - skb_out->len);
 
 	return skb_out;
 
diff --git a/drivers/net/usb/cx82310_eth.c b/drivers/net/usb/cx82310_eth.c
index 3eed708..1762ad3 100644
--- a/drivers/net/usb/cx82310_eth.c
+++ b/drivers/net/usb/cx82310_eth.c
@@ -46,8 +46,7 @@ enum cx82310_status {
 };
 
 #define CMD_PACKET_SIZE	64
-/* first command after power on can take around 8 seconds */
-#define CMD_TIMEOUT	15000
+#define CMD_TIMEOUT	100
 #define CMD_REPLY_RETRY 5
 
 #define CX82310_MTU	1514
@@ -78,8 +77,9 @@ static int cx82310_cmd(struct usbnet *dev, enum cx82310_cmd cmd, bool reply,
 	ret = usb_bulk_msg(udev, usb_sndbulkpipe(udev, CMD_EP), buf,
 			   CMD_PACKET_SIZE, &actual_len, CMD_TIMEOUT);
 	if (ret < 0) {
-		dev_err(&dev->udev->dev, "send command %#x: error %d\n",
-			cmd, ret);
+		if (cmd != CMD_GET_LINK_STATUS)
+			dev_err(&dev->udev->dev, "send command %#x: error %d\n",
+				cmd, ret);
 		goto end;
 	}
 
@@ -90,8 +90,10 @@ static int cx82310_cmd(struct usbnet *dev, enum cx82310_cmd cmd, bool reply,
 					   buf, CMD_PACKET_SIZE, &actual_len,
 					   CMD_TIMEOUT);
 			if (ret < 0) {
-				dev_err(&dev->udev->dev,
-					"reply receive error %d\n", ret);
+				if (cmd != CMD_GET_LINK_STATUS)
+					dev_err(&dev->udev->dev,
+						"reply receive error %d\n",
+						ret);
 				goto end;
 			}
 			if (actual_len > 0)
@@ -134,6 +136,8 @@ static int cx82310_bind(struct usbnet *dev, struct usb_interface *intf)
 	int ret;
 	char buf[15];
 	struct usb_device *udev = dev->udev;
+	u8 link[3];
+	int timeout = 50;
 
 	/* avoid ADSL modems - continue only if iProduct is "USB NET CARD" */
 	if (usb_string(udev, udev->descriptor.iProduct, buf, sizeof(buf)) > 0
@@ -160,6 +164,20 @@ static int cx82310_bind(struct usbnet *dev, struct usb_interface *intf)
 	if (!dev->partial_data)
 		return -ENOMEM;
 
+	/* wait for firmware to become ready (indicated by the link being up) */
+	while (--timeout) {
+		ret = cx82310_cmd(dev, CMD_GET_LINK_STATUS, true, NULL, 0,
+				  link, sizeof(link));
+		/* the command can time out during boot - it's not an error */
+		if (!ret && link[0] == 1 && link[2] == 1)
+			break;
+		msleep(500);
+	};
+	if (!timeout) {
+		dev_err(&udev->dev, "firmware not ready in time\n");
+		return -ETIMEDOUT;
+	}
+
 	/* enable ethernet mode (?) */
 	ret = cx82310_cmd(dev, CMD_ETHERNET_MODE, true, "\x01", 1, NULL, 0);
 	if (ret) {
@@ -300,9 +318,18 @@ static const struct driver_info	cx82310_info = {
 	.tx_fixup	= cx82310_tx_fixup,
 };
 
+#define USB_DEVICE_CLASS(vend, prod, cl, sc, pr) \
+	.match_flags = USB_DEVICE_ID_MATCH_DEVICE | \
+		       USB_DEVICE_ID_MATCH_DEV_INFO, \
+	.idVendor = (vend), \
+	.idProduct = (prod), \
+	.bDeviceClass = (cl), \
+	.bDeviceSubClass = (sc), \
+	.bDeviceProtocol = (pr)
+
 static const struct usb_device_id products[] = {
 	{
-		USB_DEVICE_AND_INTERFACE_INFO(0x0572, 0xcb01, 0xff, 0, 0),
+		USB_DEVICE_CLASS(0x0572, 0xcb01, 0xff, 0, 0),
 		.driver_info = (unsigned long) &cx82310_info
 	},
 	{ },
diff --git a/drivers/net/usb/hso.c b/drivers/net/usb/hso.c
index 9cdfb3f..778e915 100644
--- a/drivers/net/usb/hso.c
+++ b/drivers/net/usb/hso.c
@@ -1594,7 +1594,7 @@ hso_wait_modem_status(struct hso_serial *serial, unsigned long arg)
 		}
 		cprev = cnow;
 	}
-	current->state = TASK_RUNNING;
+	__set_current_state(TASK_RUNNING);
 	remove_wait_queue(&tiocmget->waitq, &wait);
 
 	return ret;
diff --git a/drivers/net/usb/plusb.c b/drivers/net/usb/plusb.c
index 3d18bb0..1bfe0fc 100644
--- a/drivers/net/usb/plusb.c
+++ b/drivers/net/usb/plusb.c
@@ -134,6 +134,11 @@ static const struct usb_device_id	products [] = {
 }, {
 	USB_DEVICE(0x050d, 0x258a),     /* Belkin F5U258/F5U279 (PL-25A1) */
 	.driver_info =  (unsigned long) &prolific_info,
+}, {
+	USB_DEVICE(0x3923, 0x7825),     /* National Instruments USB
+					 * Host-to-Host Cable
+					 */
+	.driver_info =  (unsigned long) &prolific_info,
 },
 
 	{ },		// END
diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
index 438fc6b..9f7c0ab 100644
--- a/drivers/net/usb/r8152.c
+++ b/drivers/net/usb/r8152.c
@@ -492,6 +492,7 @@ enum rtl8152_flags {
 /* Define these values to match your device */
 #define VENDOR_ID_REALTEK		0x0bda
 #define VENDOR_ID_SAMSUNG		0x04e8
+#define VENDOR_ID_LENOVO		0x17ef
 
 #define MCU_TYPE_PLA			0x0100
 #define MCU_TYPE_USB			0x0000
@@ -4037,6 +4038,7 @@ static struct usb_device_id rtl8152_table[] = {
 	{REALTEK_USB_DEVICE(VENDOR_ID_REALTEK, 0x8152)},
 	{REALTEK_USB_DEVICE(VENDOR_ID_REALTEK, 0x8153)},
 	{REALTEK_USB_DEVICE(VENDOR_ID_SAMSUNG, 0xa101)},
+	{REALTEK_USB_DEVICE(VENDOR_ID_LENOVO,  0x7205)},
 	{}
 };
 
diff --git a/drivers/net/usb/sr9800.c b/drivers/net/usb/sr9800.c
index b94a0fb..953de13 100644
--- a/drivers/net/usb/sr9800.c
+++ b/drivers/net/usb/sr9800.c
@@ -144,6 +144,7 @@ static struct sk_buff *sr_tx_fixup(struct usbnet *dev, struct sk_buff *skb,
 		skb_put(skb, sizeof(padbytes));
 	}
 
+	usbnet_set_skb_tx_stats(skb, 1, 0);
 	return skb;
 }
 
diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c
index 449835f..777757a 100644
--- a/drivers/net/usb/usbnet.c
+++ b/drivers/net/usb/usbnet.c
@@ -1188,8 +1188,7 @@ static void tx_complete (struct urb *urb)
 	struct usbnet		*dev = entry->dev;
 
 	if (urb->status == 0) {
-		if (!(dev->driver_info->flags & FLAG_MULTI_PACKET))
-			dev->net->stats.tx_packets++;
+		dev->net->stats.tx_packets += entry->packets;
 		dev->net->stats.tx_bytes += entry->length;
 	} else {
 		dev->net->stats.tx_errors++;
@@ -1347,7 +1346,19 @@ netdev_tx_t usbnet_start_xmit (struct sk_buff *skb,
 		} else
 			urb->transfer_flags |= URB_ZERO_PACKET;
 	}
-	entry->length = urb->transfer_buffer_length = length;
+	urb->transfer_buffer_length = length;
+
+	if (info->flags & FLAG_MULTI_PACKET) {
+		/* Driver has set number of packets and a length delta.
+		 * Calculate the complete length and ensure that it's
+		 * positive.
+		 */
+		entry->length += length;
+		if (WARN_ON_ONCE(entry->length <= 0))
+			entry->length = length;
+	} else {
+		usbnet_set_skb_tx_stats(skb, 1, length);
+	}
 
 	spin_lock_irqsave(&dev->txq.lock, flags);
 	retval = usb_autopm_get_interface_async(dev->intf);
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index f1ff366..59b0e97 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -1448,8 +1448,10 @@ static void virtnet_free_queues(struct virtnet_info *vi)
 {
 	int i;
 
-	for (i = 0; i < vi->max_queue_pairs; i++)
+	for (i = 0; i < vi->max_queue_pairs; i++) {
+		napi_hash_del(&vi->rq[i].napi);
 		netif_napi_del(&vi->rq[i].napi);
+	}
 
 	kfree(vi->rq);
 	kfree(vi->sq);
@@ -1948,11 +1950,8 @@ static int virtnet_freeze(struct virtio_device *vdev)
 	cancel_delayed_work_sync(&vi->refill);
 
 	if (netif_running(vi->dev)) {
-		for (i = 0; i < vi->max_queue_pairs; i++) {
+		for (i = 0; i < vi->max_queue_pairs; i++)
 			napi_disable(&vi->rq[i].napi);
-			napi_hash_del(&vi->rq[i].napi);
-			netif_napi_del(&vi->rq[i].napi);
-		}
 	}
 
 	remove_vq_common(vi);
diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index 1e0a775..f8528a4 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -1218,7 +1218,7 @@ static int vxlan_udp_encap_recv(struct sock *sk, struct sk_buff *skb)
 			goto drop;
 
 		flags &= ~VXLAN_HF_RCO;
-		vni &= VXLAN_VID_MASK;
+		vni &= VXLAN_VNI_MASK;
 	}
 
 	/* For backwards compatibility, only allow reserved fields to be
@@ -1239,7 +1239,7 @@ static int vxlan_udp_encap_recv(struct sock *sk, struct sk_buff *skb)
 		flags &= ~VXLAN_GBP_USED_BITS;
 	}
 
-	if (flags || (vni & ~VXLAN_VID_MASK)) {
+	if (flags || vni & ~VXLAN_VNI_MASK) {
 		/* If there are any unprocessed flags remaining treat
 		 * this as a malformed packet. This behavior diverges from
 		 * VXLAN RFC (RFC7348) which stipulates that bits in reserved
diff --git a/drivers/net/wan/cosa.c b/drivers/net/wan/cosa.c
index 83c39e2..88d121d 100644
--- a/drivers/net/wan/cosa.c
+++ b/drivers/net/wan/cosa.c
@@ -806,21 +806,21 @@ static ssize_t cosa_read(struct file *file,
 	spin_lock_irqsave(&cosa->lock, flags);
 	add_wait_queue(&chan->rxwaitq, &wait);
 	while (!chan->rx_status) {
-		current->state = TASK_INTERRUPTIBLE;
+		set_current_state(TASK_INTERRUPTIBLE);
 		spin_unlock_irqrestore(&cosa->lock, flags);
 		schedule();
 		spin_lock_irqsave(&cosa->lock, flags);
 		if (signal_pending(current) && chan->rx_status == 0) {
 			chan->rx_status = 1;
 			remove_wait_queue(&chan->rxwaitq, &wait);
-			current->state = TASK_RUNNING;
+			__set_current_state(TASK_RUNNING);
 			spin_unlock_irqrestore(&cosa->lock, flags);
 			mutex_unlock(&chan->rlock);
 			return -ERESTARTSYS;
 		}
 	}
 	remove_wait_queue(&chan->rxwaitq, &wait);
-	current->state = TASK_RUNNING;
+	__set_current_state(TASK_RUNNING);
 	kbuf = chan->rxdata;
 	count = chan->rxsize;
 	spin_unlock_irqrestore(&cosa->lock, flags);
@@ -890,14 +890,14 @@ static ssize_t cosa_write(struct file *file,
 	spin_lock_irqsave(&cosa->lock, flags);
 	add_wait_queue(&chan->txwaitq, &wait);
 	while (!chan->tx_status) {
-		current->state = TASK_INTERRUPTIBLE;
+		set_current_state(TASK_INTERRUPTIBLE);
 		spin_unlock_irqrestore(&cosa->lock, flags);
 		schedule();
 		spin_lock_irqsave(&cosa->lock, flags);
 		if (signal_pending(current) && chan->tx_status == 0) {
 			chan->tx_status = 1;
 			remove_wait_queue(&chan->txwaitq, &wait);
-			current->state = TASK_RUNNING;
+			__set_current_state(TASK_RUNNING);
 			chan->tx_status = 1;
 			spin_unlock_irqrestore(&cosa->lock, flags);
 			up(&chan->wsem);
@@ -905,7 +905,7 @@ static ssize_t cosa_write(struct file *file,
 		}
 	}
 	remove_wait_queue(&chan->txwaitq, &wait);
-	current->state = TASK_RUNNING;
+	__set_current_state(TASK_RUNNING);
 	up(&chan->wsem);
 	spin_unlock_irqrestore(&cosa->lock, flags);
 	kfree(kbuf);
diff --git a/drivers/net/wireless/ath/ath9k/beacon.c b/drivers/net/wireless/ath/ath9k/beacon.c
index cb366ad..f50a6bc 100644
--- a/drivers/net/wireless/ath/ath9k/beacon.c
+++ b/drivers/net/wireless/ath/ath9k/beacon.c
@@ -219,12 +219,15 @@ void ath9k_beacon_remove_slot(struct ath_softc *sc, struct ieee80211_vif *vif)
 	struct ath_common *common = ath9k_hw_common(sc->sc_ah);
 	struct ath_vif *avp = (void *)vif->drv_priv;
 	struct ath_buf *bf = avp->av_bcbuf;
+	struct ath_beacon_config *cur_conf = &sc->cur_chan->beacon;
 
 	ath_dbg(common, CONFIG, "Removing interface at beacon slot: %d\n",
 		avp->av_bslot);
 
 	tasklet_disable(&sc->bcon_tasklet);
 
+	cur_conf->enable_beacon &= ~BIT(avp->av_bslot);
+
 	if (bf && bf->bf_mpdu) {
 		struct sk_buff *skb = bf->bf_mpdu;
 		dma_unmap_single(sc->dev, bf->bf_buf_addr,
@@ -521,8 +524,7 @@ static bool ath9k_allow_beacon_config(struct ath_softc *sc,
 	}
 
 	if (sc->sc_ah->opmode == NL80211_IFTYPE_AP) {
-		if ((vif->type != NL80211_IFTYPE_AP) ||
-		    (sc->nbcnvifs > 1)) {
+		if (vif->type != NL80211_IFTYPE_AP) {
 			ath_dbg(common, CONFIG,
 				"An AP interface is already present !\n");
 			return false;
@@ -616,12 +618,14 @@ void ath9k_beacon_config(struct ath_softc *sc, struct ieee80211_vif *vif,
 	 * enabling/disabling SWBA.
 	 */
 	if (changed & BSS_CHANGED_BEACON_ENABLED) {
-		if (!bss_conf->enable_beacon &&
-		    (sc->nbcnvifs <= 1)) {
-			cur_conf->enable_beacon = false;
-		} else if (bss_conf->enable_beacon) {
-			cur_conf->enable_beacon = true;
-			ath9k_cache_beacon_config(sc, ctx, bss_conf);
+		bool enabled = cur_conf->enable_beacon;
+
+		if (!bss_conf->enable_beacon) {
+			cur_conf->enable_beacon &= ~BIT(avp->av_bslot);
+		} else {
+			cur_conf->enable_beacon |= BIT(avp->av_bslot);
+			if (!enabled)
+				ath9k_cache_beacon_config(sc, ctx, bss_conf);
 		}
 	}
 
diff --git a/drivers/net/wireless/ath/ath9k/common.h b/drivers/net/wireless/ath/ath9k/common.h
index 2b79a56..d237373 100644
--- a/drivers/net/wireless/ath/ath9k/common.h
+++ b/drivers/net/wireless/ath/ath9k/common.h
@@ -54,7 +54,7 @@ struct ath_beacon_config {
 	u16 dtim_period;
 	u16 bmiss_timeout;
 	u8 dtim_count;
-	bool enable_beacon;
+	u8 enable_beacon;
 	bool ibss_creator;
 	u32 nexttbtt;
 	u32 intval;
diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index 60aa8d7..8529014 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -424,7 +424,7 @@ static void ath9k_hw_init_defaults(struct ath_hw *ah)
 	ah->power_mode = ATH9K_PM_UNDEFINED;
 	ah->htc_reset_init = true;
 
-	ah->tpc_enabled = true;
+	ah->tpc_enabled = false;
 
 	ah->ani_function = ATH9K_ANI_ALL;
 	if (!AR_SREV_9300_20_OR_LATER(ah))
diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c
index ccbdb05..75345c1 100644
--- a/drivers/net/wireless/b43/main.c
+++ b/drivers/net/wireless/b43/main.c
@@ -5370,6 +5370,7 @@ static void b43_supported_bands(struct b43_wldev *dev, bool *have_2ghz_phy,
 	case 0x432a: /* BCM4321 */
 	case 0x432d: /* BCM4322 */
 	case 0x4352: /* BCM43222 */
+	case 0x435a: /* BCM43228 */
 	case 0x4333: /* BCM4331 */
 	case 0x43a2: /* BCM4360 */
 	case 0x43b3: /* BCM4352 */
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/feature.c b/drivers/net/wireless/brcm80211/brcmfmac/feature.c
index defb7a4..7748a1c 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/feature.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/feature.c
@@ -126,7 +126,8 @@ void brcmf_feat_attach(struct brcmf_pub *drvr)
 	brcmf_feat_iovar_int_get(ifp, BRCMF_FEAT_MCHAN, "mchan");
 	if (drvr->bus_if->wowl_supported)
 		brcmf_feat_iovar_int_get(ifp, BRCMF_FEAT_WOWL, "wowl");
-	brcmf_feat_iovar_int_set(ifp, BRCMF_FEAT_MBSS, "mbss", 0);
+	if (drvr->bus_if->chip != BRCM_CC_43362_CHIP_ID)
+		brcmf_feat_iovar_int_set(ifp, BRCMF_FEAT_MBSS, "mbss", 0);
 
 	/* set chip related quirks */
 	switch (drvr->bus_if->chip) {
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/vendor.c b/drivers/net/wireless/brcm80211/brcmfmac/vendor.c
index 50cdf70..8eff275 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/vendor.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/vendor.c
@@ -39,13 +39,22 @@ static int brcmf_cfg80211_vndr_cmds_dcmd_handler(struct wiphy *wiphy,
 	void *dcmd_buf = NULL, *wr_pointer;
 	u16 msglen, maxmsglen = PAGE_SIZE - 0x100;
 
-	brcmf_dbg(TRACE, "cmd %x set %d len %d\n", cmdhdr->cmd, cmdhdr->set,
-		  cmdhdr->len);
+	if (len < sizeof(*cmdhdr)) {
+		brcmf_err("vendor command too short: %d\n", len);
+		return -EINVAL;
+	}
 
 	vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
 	ifp = vif->ifp;
 
-	len -= sizeof(struct brcmf_vndr_dcmd_hdr);
+	brcmf_dbg(TRACE, "ifidx=%d, cmd=%d\n", ifp->ifidx, cmdhdr->cmd);
+
+	if (cmdhdr->offset > len) {
+		brcmf_err("bad buffer offset %d > %d\n", cmdhdr->offset, len);
+		return -EINVAL;
+	}
+
+	len -= cmdhdr->offset;
 	ret_len = cmdhdr->len;
 	if (ret_len > 0 || len > 0) {
 		if (len > BRCMF_DCMD_MAXLEN) {
diff --git a/drivers/net/wireless/iwlwifi/dvm/dev.h b/drivers/net/wireless/iwlwifi/dvm/dev.h
index a6f22c3..3811878 100644
--- a/drivers/net/wireless/iwlwifi/dvm/dev.h
+++ b/drivers/net/wireless/iwlwifi/dvm/dev.h
@@ -708,7 +708,6 @@ struct iwl_priv {
 	unsigned long reload_jiffies;
 	int reload_count;
 	bool ucode_loaded;
-	bool init_ucode_run;		/* Don't run init uCode again */
 
 	u8 plcp_delta_threshold;
 
diff --git a/drivers/net/wireless/iwlwifi/dvm/mac80211.c b/drivers/net/wireless/iwlwifi/dvm/mac80211.c
index 47e64e8..cceb026 100644
--- a/drivers/net/wireless/iwlwifi/dvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/dvm/mac80211.c
@@ -1114,16 +1114,17 @@ static void iwlagn_mac_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 	scd_queues &= ~(BIT(IWL_IPAN_CMD_QUEUE_NUM) |
 			BIT(IWL_DEFAULT_CMD_QUEUE_NUM));
 
-	if (vif)
-		scd_queues &= ~BIT(vif->hw_queue[IEEE80211_AC_VO]);
-
-	IWL_DEBUG_TX_QUEUES(priv, "Flushing SCD queues: 0x%x\n", scd_queues);
-	if (iwlagn_txfifo_flush(priv, scd_queues)) {
-		IWL_ERR(priv, "flush request fail\n");
-		goto done;
+	if (drop) {
+		IWL_DEBUG_TX_QUEUES(priv, "Flushing SCD queues: 0x%x\n",
+				    scd_queues);
+		if (iwlagn_txfifo_flush(priv, scd_queues)) {
+			IWL_ERR(priv, "flush request fail\n");
+			goto done;
+		}
 	}
+
 	IWL_DEBUG_TX_QUEUES(priv, "wait transmit/flush all frames\n");
-	iwl_trans_wait_tx_queue_empty(priv->trans, 0xffffffff);
+	iwl_trans_wait_tx_queue_empty(priv->trans, scd_queues);
 done:
 	mutex_unlock(&priv->mutex);
 	IWL_DEBUG_MAC80211(priv, "leave\n");
diff --git a/drivers/net/wireless/iwlwifi/dvm/ucode.c b/drivers/net/wireless/iwlwifi/dvm/ucode.c
index 4dbef7e..5244e43 100644
--- a/drivers/net/wireless/iwlwifi/dvm/ucode.c
+++ b/drivers/net/wireless/iwlwifi/dvm/ucode.c
@@ -418,9 +418,6 @@ int iwl_run_init_ucode(struct iwl_priv *priv)
 	if (!priv->fw->img[IWL_UCODE_INIT].sec[0].len)
 		return 0;
 
-	if (priv->init_ucode_run)
-		return 0;
-
 	iwl_init_notification_wait(&priv->notif_wait, &calib_wait,
 				   calib_complete, ARRAY_SIZE(calib_complete),
 				   iwlagn_wait_calib, priv);
@@ -440,8 +437,6 @@ int iwl_run_init_ucode(struct iwl_priv *priv)
 	 */
 	ret = iwl_wait_notification(&priv->notif_wait, &calib_wait,
 					UCODE_CALIB_TIMEOUT);
-	if (!ret)
-		priv->init_ucode_run = true;
 
 	goto out;
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-1000.c b/drivers/net/wireless/iwlwifi/iwl-1000.c
index c3817fa..06f6cc0 100644
--- a/drivers/net/wireless/iwlwifi/iwl-1000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-1000.c
@@ -95,7 +95,8 @@ static const struct iwl_eeprom_params iwl1000_eeprom_params = {
 	.nvm_calib_ver = EEPROM_1000_TX_POWER_VERSION,	\
 	.base_params = &iwl1000_base_params,			\
 	.eeprom_params = &iwl1000_eeprom_params,		\
-	.led_mode = IWL_LED_BLINK
+	.led_mode = IWL_LED_BLINK,				\
+	.max_ht_ampdu_exponent = IEEE80211_HT_MAX_AMPDU_64K
 
 const struct iwl_cfg iwl1000_bgn_cfg = {
 	.name = "Intel(R) Centrino(R) Wireless-N 1000 BGN",
@@ -121,7 +122,8 @@ const struct iwl_cfg iwl1000_bg_cfg = {
 	.base_params = &iwl1000_base_params,			\
 	.eeprom_params = &iwl1000_eeprom_params,		\
 	.led_mode = IWL_LED_RF_STATE,				\
-	.rx_with_siso_diversity = true
+	.rx_with_siso_diversity = true,				\
+	.max_ht_ampdu_exponent = IEEE80211_HT_MAX_AMPDU_64K
 
 const struct iwl_cfg iwl100_bgn_cfg = {
 	.name = "Intel(R) Centrino(R) Wireless-N 100 BGN",
diff --git a/drivers/net/wireless/iwlwifi/iwl-2000.c b/drivers/net/wireless/iwlwifi/iwl-2000.c
index 21e5d08..890b95f 100644
--- a/drivers/net/wireless/iwlwifi/iwl-2000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-2000.c
@@ -123,7 +123,9 @@ static const struct iwl_eeprom_params iwl20x0_eeprom_params = {
 	.nvm_calib_ver = EEPROM_2000_TX_POWER_VERSION,		\
 	.base_params = &iwl2000_base_params,			\
 	.eeprom_params = &iwl20x0_eeprom_params,		\
-	.led_mode = IWL_LED_RF_STATE
+	.led_mode = IWL_LED_RF_STATE,				\
+	.max_ht_ampdu_exponent = IEEE80211_HT_MAX_AMPDU_64K
+
 
 const struct iwl_cfg iwl2000_2bgn_cfg = {
 	.name = "Intel(R) Centrino(R) Wireless-N 2200 BGN",
@@ -149,7 +151,8 @@ const struct iwl_cfg iwl2000_2bgn_d_cfg = {
 	.nvm_calib_ver = EEPROM_2000_TX_POWER_VERSION,	\
 	.base_params = &iwl2030_base_params,			\
 	.eeprom_params = &iwl20x0_eeprom_params,		\
-	.led_mode = IWL_LED_RF_STATE
+	.led_mode = IWL_LED_RF_STATE,				\
+	.max_ht_ampdu_exponent = IEEE80211_HT_MAX_AMPDU_64K
 
 const struct iwl_cfg iwl2030_2bgn_cfg = {
 	.name = "Intel(R) Centrino(R) Wireless-N 2230 BGN",
@@ -170,7 +173,8 @@ const struct iwl_cfg iwl2030_2bgn_cfg = {
 	.base_params = &iwl2000_base_params,			\
 	.eeprom_params = &iwl20x0_eeprom_params,		\
 	.led_mode = IWL_LED_RF_STATE,				\
-	.rx_with_siso_diversity = true
+	.rx_with_siso_diversity = true,				\
+	.max_ht_ampdu_exponent = IEEE80211_HT_MAX_AMPDU_64K
 
 const struct iwl_cfg iwl105_bgn_cfg = {
 	.name = "Intel(R) Centrino(R) Wireless-N 105 BGN",
@@ -197,7 +201,8 @@ const struct iwl_cfg iwl105_bgn_d_cfg = {
 	.base_params = &iwl2030_base_params,			\
 	.eeprom_params = &iwl20x0_eeprom_params,		\
 	.led_mode = IWL_LED_RF_STATE,				\
-	.rx_with_siso_diversity = true
+	.rx_with_siso_diversity = true,				\
+	.max_ht_ampdu_exponent = IEEE80211_HT_MAX_AMPDU_64K
 
 const struct iwl_cfg iwl135_bgn_cfg = {
 	.name = "Intel(R) Centrino(R) Wireless-N 135 BGN",
diff --git a/drivers/net/wireless/iwlwifi/iwl-5000.c b/drivers/net/wireless/iwlwifi/iwl-5000.c
index 332bbed..724194e 100644
--- a/drivers/net/wireless/iwlwifi/iwl-5000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-5000.c
@@ -93,7 +93,8 @@ static const struct iwl_eeprom_params iwl5000_eeprom_params = {
 	.nvm_calib_ver = EEPROM_5000_TX_POWER_VERSION,	\
 	.base_params = &iwl5000_base_params,			\
 	.eeprom_params = &iwl5000_eeprom_params,		\
-	.led_mode = IWL_LED_BLINK
+	.led_mode = IWL_LED_BLINK,				\
+	.max_ht_ampdu_exponent = IEEE80211_HT_MAX_AMPDU_64K
 
 const struct iwl_cfg iwl5300_agn_cfg = {
 	.name = "Intel(R) Ultimate N WiFi Link 5300 AGN",
@@ -158,7 +159,8 @@ const struct iwl_cfg iwl5350_agn_cfg = {
 	.base_params = &iwl5000_base_params,			\
 	.eeprom_params = &iwl5000_eeprom_params,		\
 	.led_mode = IWL_LED_BLINK,				\
-	.internal_wimax_coex = true
+	.internal_wimax_coex = true,				\
+	.max_ht_ampdu_exponent = IEEE80211_HT_MAX_AMPDU_64K
 
 const struct iwl_cfg iwl5150_agn_cfg = {
 	.name = "Intel(R) WiMAX/WiFi Link 5150 AGN",
diff --git a/drivers/net/wireless/iwlwifi/iwl-6000.c b/drivers/net/wireless/iwlwifi/iwl-6000.c
index 8f2c3c8..21b2630 100644
--- a/drivers/net/wireless/iwlwifi/iwl-6000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-6000.c
@@ -145,7 +145,8 @@ static const struct iwl_eeprom_params iwl6000_eeprom_params = {
 	.nvm_calib_ver = EEPROM_6005_TX_POWER_VERSION,	\
 	.base_params = &iwl6000_g2_base_params,			\
 	.eeprom_params = &iwl6000_eeprom_params,		\
-	.led_mode = IWL_LED_RF_STATE
+	.led_mode = IWL_LED_RF_STATE,				\
+	.max_ht_ampdu_exponent = IEEE80211_HT_MAX_AMPDU_64K
 
 const struct iwl_cfg iwl6005_2agn_cfg = {
 	.name = "Intel(R) Centrino(R) Advanced-N 6205 AGN",
@@ -199,7 +200,8 @@ const struct iwl_cfg iwl6005_2agn_mow2_cfg = {
 	.nvm_calib_ver = EEPROM_6030_TX_POWER_VERSION,	\
 	.base_params = &iwl6000_g2_base_params,			\
 	.eeprom_params = &iwl6000_eeprom_params,		\
-	.led_mode = IWL_LED_RF_STATE
+	.led_mode = IWL_LED_RF_STATE,				\
+	.max_ht_ampdu_exponent = IEEE80211_HT_MAX_AMPDU_64K
 
 const struct iwl_cfg iwl6030_2agn_cfg = {
 	.name = "Intel(R) Centrino(R) Advanced-N 6230 AGN",
@@ -235,7 +237,8 @@ const struct iwl_cfg iwl6030_2bg_cfg = {
 	.nvm_calib_ver = EEPROM_6030_TX_POWER_VERSION,	\
 	.base_params = &iwl6000_g2_base_params,			\
 	.eeprom_params = &iwl6000_eeprom_params,		\
-	.led_mode = IWL_LED_RF_STATE
+	.led_mode = IWL_LED_RF_STATE,				\
+	.max_ht_ampdu_exponent = IEEE80211_HT_MAX_AMPDU_64K
 
 const struct iwl_cfg iwl6035_2agn_cfg = {
 	.name = "Intel(R) Centrino(R) Advanced-N 6235 AGN",
@@ -290,7 +293,8 @@ const struct iwl_cfg iwl130_bg_cfg = {
 	.nvm_calib_ver = EEPROM_6000_TX_POWER_VERSION,	\
 	.base_params = &iwl6000_base_params,			\
 	.eeprom_params = &iwl6000_eeprom_params,		\
-	.led_mode = IWL_LED_BLINK
+	.led_mode = IWL_LED_BLINK,				\
+	.max_ht_ampdu_exponent = IEEE80211_HT_MAX_AMPDU_64K
 
 const struct iwl_cfg iwl6000i_2agn_cfg = {
 	.name = "Intel(R) Centrino(R) Advanced-N 6200 AGN",
@@ -322,7 +326,8 @@ const struct iwl_cfg iwl6000i_2bg_cfg = {
 	.base_params = &iwl6050_base_params,			\
 	.eeprom_params = &iwl6000_eeprom_params,		\
 	.led_mode = IWL_LED_BLINK,				\
-	.internal_wimax_coex = true
+	.internal_wimax_coex = true,				\
+	.max_ht_ampdu_exponent = IEEE80211_HT_MAX_AMPDU_64K
 
 const struct iwl_cfg iwl6050_2agn_cfg = {
 	.name = "Intel(R) Centrino(R) Advanced-N + WiMAX 6250 AGN",
@@ -347,7 +352,8 @@ const struct iwl_cfg iwl6050_2abg_cfg = {
 	.base_params = &iwl6050_base_params,			\
 	.eeprom_params = &iwl6000_eeprom_params,		\
 	.led_mode = IWL_LED_BLINK,				\
-	.internal_wimax_coex = true
+	.internal_wimax_coex = true,				\
+	.max_ht_ampdu_exponent = IEEE80211_HT_MAX_AMPDU_64K
 
 const struct iwl_cfg iwl6150_bgn_cfg = {
 	.name = "Intel(R) Centrino(R) Wireless-N + WiMAX 6150 BGN",
diff --git a/drivers/net/wireless/iwlwifi/iwl-drv.c b/drivers/net/wireless/iwlwifi/iwl-drv.c
index 996e7f1..c7154ac 100644
--- a/drivers/net/wireless/iwlwifi/iwl-drv.c
+++ b/drivers/net/wireless/iwlwifi/iwl-drv.c
@@ -1257,6 +1257,7 @@ static void iwl_req_fw_callback(const struct firmware *ucode_raw, void *context)
 				op->name, err);
 #endif
 	}
+	kfree(pieces);
 	return;
 
  try_again:
diff --git a/drivers/net/wireless/iwlwifi/mvm/coex.c b/drivers/net/wireless/iwlwifi/mvm/coex.c
index 1ec4d55..7810c41 100644
--- a/drivers/net/wireless/iwlwifi/mvm/coex.c
+++ b/drivers/net/wireless/iwlwifi/mvm/coex.c
@@ -793,7 +793,8 @@ static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac,
 	if (!vif->bss_conf.assoc)
 		smps_mode = IEEE80211_SMPS_AUTOMATIC;
 
-	if (IWL_COEX_IS_RRC_ON(mvm->last_bt_notif.ttc_rrc_status,
+	if (mvmvif->phy_ctxt &&
+	    IWL_COEX_IS_RRC_ON(mvm->last_bt_notif.ttc_rrc_status,
 			       mvmvif->phy_ctxt->id))
 		smps_mode = IEEE80211_SMPS_AUTOMATIC;
 
diff --git a/drivers/net/wireless/iwlwifi/mvm/coex_legacy.c b/drivers/net/wireless/iwlwifi/mvm/coex_legacy.c
index d530ef3..542ee74 100644
--- a/drivers/net/wireless/iwlwifi/mvm/coex_legacy.c
+++ b/drivers/net/wireless/iwlwifi/mvm/coex_legacy.c
@@ -832,7 +832,8 @@ static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac,
 	if (!vif->bss_conf.assoc)
 		smps_mode = IEEE80211_SMPS_AUTOMATIC;
 
-	if (data->notif->rrc_enabled & BIT(mvmvif->phy_ctxt->id))
+	if (mvmvif->phy_ctxt &&
+	    data->notif->rrc_enabled & BIT(mvmvif->phy_ctxt->id))
 		smps_mode = IEEE80211_SMPS_AUTOMATIC;
 
 	IWL_DEBUG_COEX(data->mvm,
diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
index 1ff7ec0..09654e7 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -405,7 +405,10 @@ int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
 		hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
 			&mvm->nvm_data->bands[IEEE80211_BAND_5GHZ];
 
-		if (mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_BEAMFORMER)
+		if ((mvm->fw->ucode_capa.capa[0] &
+		     IWL_UCODE_TLV_CAPA_BEAMFORMER) &&
+		    (mvm->fw->ucode_capa.api[0] &
+		     IWL_UCODE_TLV_API_LQ_SS_PARAMS))
 			hw->wiphy->bands[IEEE80211_BAND_5GHZ]->vht_cap.cap |=
 				IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE;
 	}
@@ -2215,7 +2218,19 @@ static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw,
 
 	mutex_lock(&mvm->mutex);
 
-	iwl_mvm_cancel_scan(mvm);
+	/* Due to a race condition, it's possible that mac80211 asks
+	 * us to stop a hw_scan when it's already stopped.  This can
+	 * happen, for instance, if we stopped the scan ourselves,
+	 * called ieee80211_scan_completed() and the userspace called
+	 * cancel scan scan before ieee80211_scan_work() could run.
+	 * To handle that, simply return if the scan is not running.
+	*/
+	/* FIXME: for now, we ignore this race for UMAC scans, since
+	 * they don't set the scan_status.
+	 */
+	if ((mvm->scan_status == IWL_MVM_SCAN_OS) ||
+	    (mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN))
+		iwl_mvm_cancel_scan(mvm);
 
 	mutex_unlock(&mvm->mutex);
 }
@@ -2559,12 +2574,29 @@ static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw,
 	int ret;
 
 	mutex_lock(&mvm->mutex);
+
+	/* Due to a race condition, it's possible that mac80211 asks
+	 * us to stop a sched_scan when it's already stopped.  This
+	 * can happen, for instance, if we stopped the scan ourselves,
+	 * called ieee80211_sched_scan_stopped() and the userspace called
+	 * stop sched scan scan before ieee80211_sched_scan_stopped_work()
+	 * could run.  To handle this, simply return if the scan is
+	 * not running.
+	*/
+	/* FIXME: for now, we ignore this race for UMAC scans, since
+	 * they don't set the scan_status.
+	 */
+	if (mvm->scan_status != IWL_MVM_SCAN_SCHED &&
+	    !(mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
+		mutex_unlock(&mvm->mutex);
+		return 0;
+	}
+
 	ret = iwl_mvm_scan_offload_stop(mvm, false);
 	mutex_unlock(&mvm->mutex);
 	iwl_mvm_wait_for_async_handlers(mvm);
 
 	return ret;
-
 }
 
 static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
diff --git a/drivers/net/wireless/iwlwifi/mvm/rs.c b/drivers/net/wireless/iwlwifi/mvm/rs.c
index 194bd1f..078f24c 100644
--- a/drivers/net/wireless/iwlwifi/mvm/rs.c
+++ b/drivers/net/wireless/iwlwifi/mvm/rs.c
@@ -134,9 +134,12 @@ enum rs_column_mode {
 #define MAX_NEXT_COLUMNS 7
 #define MAX_COLUMN_CHECKS 3
 
+struct rs_tx_column;
+
 typedef bool (*allow_column_func_t) (struct iwl_mvm *mvm,
 				     struct ieee80211_sta *sta,
-				     struct iwl_scale_tbl_info *tbl);
+				     struct iwl_scale_tbl_info *tbl,
+				     const struct rs_tx_column *next_col);
 
 struct rs_tx_column {
 	enum rs_column_mode mode;
@@ -147,13 +150,15 @@ struct rs_tx_column {
 };
 
 static bool rs_ant_allow(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
-			 struct iwl_scale_tbl_info *tbl)
+			 struct iwl_scale_tbl_info *tbl,
+			 const struct rs_tx_column *next_col)
 {
-	return iwl_mvm_bt_coex_is_ant_avail(mvm, tbl->rate.ant);
+	return iwl_mvm_bt_coex_is_ant_avail(mvm, next_col->ant);
 }
 
 static bool rs_mimo_allow(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
-			  struct iwl_scale_tbl_info *tbl)
+			  struct iwl_scale_tbl_info *tbl,
+			  const struct rs_tx_column *next_col)
 {
 	if (!sta->ht_cap.ht_supported)
 		return false;
@@ -171,7 +176,8 @@ static bool rs_mimo_allow(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
 }
 
 static bool rs_siso_allow(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
-			  struct iwl_scale_tbl_info *tbl)
+			  struct iwl_scale_tbl_info *tbl,
+			  const struct rs_tx_column *next_col)
 {
 	if (!sta->ht_cap.ht_supported)
 		return false;
@@ -180,7 +186,8 @@ static bool rs_siso_allow(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
 }
 
 static bool rs_sgi_allow(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
-			 struct iwl_scale_tbl_info *tbl)
+			 struct iwl_scale_tbl_info *tbl,
+			 const struct rs_tx_column *next_col)
 {
 	struct rs_rate *rate = &tbl->rate;
 	struct ieee80211_sta_ht_cap *ht_cap = &sta->ht_cap;
@@ -1271,6 +1278,9 @@ static void rs_mac80211_tx_status(void *mvm_r,
 	struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 
+	if (!iwl_mvm_sta_from_mac80211(sta)->vif)
+		return;
+
 	if (!ieee80211_is_data(hdr->frame_control) ||
 	    info->flags & IEEE80211_TX_CTL_NO_ACK)
 		return;
@@ -1590,7 +1600,7 @@ static enum rs_column rs_get_next_column(struct iwl_mvm *mvm,
 
 		for (j = 0; j < MAX_COLUMN_CHECKS; j++) {
 			allow_func = next_col->checks[j];
-			if (allow_func && !allow_func(mvm, sta, tbl))
+			if (allow_func && !allow_func(mvm, sta, tbl, next_col))
 				break;
 		}
 
@@ -2504,6 +2514,14 @@ static void rs_get_rate(void *mvm_r, struct ieee80211_sta *sta, void *mvm_sta,
 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 	struct iwl_lq_sta *lq_sta = mvm_sta;
 
+	if (sta && !iwl_mvm_sta_from_mac80211(sta)->vif) {
+		/* if vif isn't initialized mvm doesn't know about
+		 * this station, so don't do anything with the it
+		 */
+		sta = NULL;
+		mvm_sta = NULL;
+	}
+
 	/* TODO: handle rate_idx_mask and rate_idx_mcs_mask */
 
 	/* Treat uninitialized rate scaling data same as non-existing. */
@@ -2820,6 +2838,9 @@ static void rs_rate_update(void *mvm_r,
 			(struct iwl_op_mode *)mvm_r;
 	struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
 
+	if (!iwl_mvm_sta_from_mac80211(sta)->vif)
+		return;
+
 	/* Stop any ongoing aggregations as rs starts off assuming no agg */
 	for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++)
 		ieee80211_stop_tx_ba_session(sta, tid);
@@ -3580,9 +3601,15 @@ static ssize_t iwl_dbgfs_ss_force_write(struct iwl_lq_sta *lq_sta, char *buf,
 
 MVM_DEBUGFS_READ_WRITE_FILE_OPS(ss_force, 32);
 
-static void rs_add_debugfs(void *mvm, void *mvm_sta, struct dentry *dir)
+static void rs_add_debugfs(void *mvm, void *priv_sta, struct dentry *dir)
 {
-	struct iwl_lq_sta *lq_sta = mvm_sta;
+	struct iwl_lq_sta *lq_sta = priv_sta;
+	struct iwl_mvm_sta *mvmsta;
+
+	mvmsta = container_of(lq_sta, struct iwl_mvm_sta, lq_sta);
+
+	if (!mvmsta->vif)
+		return;
 
 	debugfs_create_file("rate_scale_table", S_IRUSR | S_IWUSR, dir,
 			    lq_sta, &rs_sta_dbgfs_scale_table_ops);
diff --git a/drivers/net/wireless/iwlwifi/mvm/scan.c b/drivers/net/wireless/iwlwifi/mvm/scan.c
index 7e9aa3c..c47c8051 100644
--- a/drivers/net/wireless/iwlwifi/mvm/scan.c
+++ b/drivers/net/wireless/iwlwifi/mvm/scan.c
@@ -1128,8 +1128,10 @@ int iwl_mvm_scan_offload_stop(struct iwl_mvm *mvm, bool notify)
 	if (mvm->scan_status == IWL_MVM_SCAN_NONE)
 		return 0;
 
-	if (iwl_mvm_is_radio_killed(mvm))
+	if (iwl_mvm_is_radio_killed(mvm)) {
+		ret = 0;
 		goto out;
+	}
 
 	if (mvm->scan_status != IWL_MVM_SCAN_SCHED &&
 	    (!(mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_LMAC_SCAN) ||
@@ -1148,16 +1150,14 @@ int iwl_mvm_scan_offload_stop(struct iwl_mvm *mvm, bool notify)
 		IWL_DEBUG_SCAN(mvm, "Send stop %sscan failed %d\n",
 			       sched ? "offloaded " : "", ret);
 		iwl_remove_notification(&mvm->notif_wait, &wait_scan_done);
-		return ret;
+		goto out;
 	}
 
 	IWL_DEBUG_SCAN(mvm, "Successfully sent stop %sscan\n",
 		       sched ? "offloaded " : "");
 
 	ret = iwl_wait_notification(&mvm->notif_wait, &wait_scan_done, 1 * HZ);
-	if (ret)
-		return ret;
-
+out:
 	/*
 	 * Clear the scan status so the next scan requests will succeed. This
 	 * also ensures the Rx handler doesn't do anything, as the scan was
@@ -1167,7 +1167,6 @@ int iwl_mvm_scan_offload_stop(struct iwl_mvm *mvm, bool notify)
 	if (mvm->scan_status == IWL_MVM_SCAN_OS)
 		iwl_mvm_unref(mvm, IWL_MVM_REF_SCAN);
 
-out:
 	mvm->scan_status = IWL_MVM_SCAN_NONE;
 
 	if (notify) {
@@ -1177,7 +1176,7 @@ out:
 			ieee80211_scan_completed(mvm->hw, true);
 	}
 
-	return 0;
+	return ret;
 }
 
 static void iwl_mvm_unified_scan_fill_tx_cmd(struct iwl_mvm *mvm,
diff --git a/drivers/net/wireless/iwlwifi/mvm/time-event.c b/drivers/net/wireless/iwlwifi/mvm/time-event.c
index 54fafbf..4b81c0b 100644
--- a/drivers/net/wireless/iwlwifi/mvm/time-event.c
+++ b/drivers/net/wireless/iwlwifi/mvm/time-event.c
@@ -197,6 +197,8 @@ iwl_mvm_te_handle_notify_csa(struct iwl_mvm *mvm,
 			     struct iwl_time_event_notif *notif)
 {
 	if (!le32_to_cpu(notif->status)) {
+		if (te_data->vif->type == NL80211_IFTYPE_STATION)
+			ieee80211_connection_loss(te_data->vif);
 		IWL_DEBUG_TE(mvm, "CSA time event failed to start\n");
 		iwl_mvm_te_clear_data(mvm, te_data);
 		return;
@@ -750,8 +752,7 @@ void iwl_mvm_stop_roc(struct iwl_mvm *mvm)
 	 * request
 	 */
 	list_for_each_entry(te_data, &mvm->time_event_list, list) {
-		if (te_data->vif->type == NL80211_IFTYPE_P2P_DEVICE &&
-		    te_data->running) {
+		if (te_data->vif->type == NL80211_IFTYPE_P2P_DEVICE) {
 			mvmvif = iwl_mvm_vif_from_mac80211(te_data->vif);
 			is_p2p = true;
 			goto remove_te;
@@ -766,10 +767,8 @@ void iwl_mvm_stop_roc(struct iwl_mvm *mvm)
 	 * request
 	 */
 	list_for_each_entry(te_data, &mvm->aux_roc_te_list, list) {
-		if (te_data->running) {
-			mvmvif = iwl_mvm_vif_from_mac80211(te_data->vif);
-			goto remove_te;
-		}
+		mvmvif = iwl_mvm_vif_from_mac80211(te_data->vif);
+		goto remove_te;
 	}
 
 remove_te:
diff --git a/drivers/net/wireless/iwlwifi/mvm/tx.c b/drivers/net/wireless/iwlwifi/mvm/tx.c
index 07304e1..96a0540 100644
--- a/drivers/net/wireless/iwlwifi/mvm/tx.c
+++ b/drivers/net/wireless/iwlwifi/mvm/tx.c
@@ -949,8 +949,10 @@ int iwl_mvm_rx_ba_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
 	mvmsta = iwl_mvm_sta_from_mac80211(sta);
 	tid_data = &mvmsta->tid_data[tid];
 
-	if (WARN_ONCE(tid_data->txq_id != scd_flow, "Q %d, tid %d, flow %d",
-		      tid_data->txq_id, tid, scd_flow)) {
+	if (tid_data->txq_id != scd_flow) {
+		IWL_ERR(mvm,
+			"invalid BA notification: Q %d, tid %d, flow %d\n",
+			tid_data->txq_id, tid, scd_flow);
 		rcu_read_unlock();
 		return 0;
 	}
diff --git a/drivers/net/wireless/iwlwifi/pcie/drv.c b/drivers/net/wireless/iwlwifi/pcie/drv.c
index dbd6bcf..686dd30 100644
--- a/drivers/net/wireless/iwlwifi/pcie/drv.c
+++ b/drivers/net/wireless/iwlwifi/pcie/drv.c
@@ -368,10 +368,12 @@ static const struct pci_device_id iwl_hw_card_ids[] = {
 /* 3165 Series */
 	{IWL_PCI_DEVICE(0x3165, 0x4010, iwl3165_2ac_cfg)},
 	{IWL_PCI_DEVICE(0x3165, 0x4012, iwl3165_2ac_cfg)},
-	{IWL_PCI_DEVICE(0x3165, 0x4110, iwl3165_2ac_cfg)},
-	{IWL_PCI_DEVICE(0x3165, 0x4210, iwl3165_2ac_cfg)},
 	{IWL_PCI_DEVICE(0x3165, 0x4410, iwl3165_2ac_cfg)},
 	{IWL_PCI_DEVICE(0x3165, 0x4510, iwl3165_2ac_cfg)},
+	{IWL_PCI_DEVICE(0x3165, 0x4110, iwl3165_2ac_cfg)},
+	{IWL_PCI_DEVICE(0x3166, 0x4310, iwl3165_2ac_cfg)},
+	{IWL_PCI_DEVICE(0x3166, 0x4210, iwl3165_2ac_cfg)},
+	{IWL_PCI_DEVICE(0x3165, 0x8010, iwl3165_2ac_cfg)},
 
 /* 7265 Series */
 	{IWL_PCI_DEVICE(0x095A, 0x5010, iwl7265_2ac_cfg)},
diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c
index 4a4c658..8908be6 100644
--- a/drivers/net/wireless/mac80211_hwsim.c
+++ b/drivers/net/wireless/mac80211_hwsim.c
@@ -946,7 +946,8 @@ static void mac80211_hwsim_tx_frame_nl(struct ieee80211_hw *hw,
 		goto nla_put_failure;
 
 	genlmsg_end(skb, msg_head);
-	genlmsg_unicast(&init_net, skb, dst_portid);
+	if (genlmsg_unicast(&init_net, skb, dst_portid))
+		goto err_free_txskb;
 
 	/* Enqueue the packet */
 	skb_queue_tail(&data->pending, my_skb);
@@ -955,6 +956,8 @@ static void mac80211_hwsim_tx_frame_nl(struct ieee80211_hw *hw,
 	return;
 
 nla_put_failure:
+	nlmsg_free(skb);
+err_free_txskb:
 	printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
 	ieee80211_free_txskb(hw, my_skb);
 	data->tx_failed++;
diff --git a/drivers/net/wireless/rtlwifi/base.c b/drivers/net/wireless/rtlwifi/base.c
index 1d46774..074f716 100644
--- a/drivers/net/wireless/rtlwifi/base.c
+++ b/drivers/net/wireless/rtlwifi/base.c
@@ -1386,8 +1386,11 @@ u8 rtl_is_special_data(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx)
 		}
 
 		return true;
-	} else if (0x86DD == ether_type) {
-		return true;
+	} else if (ETH_P_IPV6 == ether_type) {
+		/* TODO: Handle any IPv6 cases that need special handling.
+		 * For now, always return false
+		 */
+		goto end;
 	}
 
 end:
diff --git a/drivers/net/wireless/rtlwifi/pci.c b/drivers/net/wireless/rtlwifi/pci.c
index a62170e..8c45cf4 100644
--- a/drivers/net/wireless/rtlwifi/pci.c
+++ b/drivers/net/wireless/rtlwifi/pci.c
@@ -1124,12 +1124,22 @@ static void _rtl_pci_prepare_bcn_tasklet(struct ieee80211_hw *hw)
 	/*This is for new trx flow*/
 	struct rtl_tx_buffer_desc *pbuffer_desc = NULL;
 	u8 temp_one = 1;
+	u8 *entry;
 
 	memset(&tcb_desc, 0, sizeof(struct rtl_tcb_desc));
 	ring = &rtlpci->tx_ring[BEACON_QUEUE];
 	pskb = __skb_dequeue(&ring->queue);
-	if (pskb)
+	if (rtlpriv->use_new_trx_flow)
+		entry = (u8 *)(&ring->buffer_desc[ring->idx]);
+	else
+		entry = (u8 *)(&ring->desc[ring->idx]);
+	if (pskb) {
+		pci_unmap_single(rtlpci->pdev,
+				 rtlpriv->cfg->ops->get_desc(
+				 (u8 *)entry, true, HW_DESC_TXBUFF_ADDR),
+				 pskb->len, PCI_DMA_TODEVICE);
 		kfree_skb(pskb);
+	}
 
 	/*NB: the beacon data buffer must be 32-bit aligned. */
 	pskb = ieee80211_beacon_get(hw, mac->vif);
diff --git a/drivers/net/xen-netback/interface.c b/drivers/net/xen-netback/interface.c
index f38227af..3aa8648 100644
--- a/drivers/net/xen-netback/interface.c
+++ b/drivers/net/xen-netback/interface.c
@@ -340,12 +340,11 @@ static void xenvif_get_ethtool_stats(struct net_device *dev,
 	unsigned int num_queues = vif->num_queues;
 	int i;
 	unsigned int queue_index;
-	struct xenvif_stats *vif_stats;
 
 	for (i = 0; i < ARRAY_SIZE(xenvif_stats); i++) {
 		unsigned long accum = 0;
 		for (queue_index = 0; queue_index < num_queues; ++queue_index) {
-			vif_stats = &vif->queues[queue_index].stats;
+			void *vif_stats = &vif->queues[queue_index].stats;
 			accum += *(unsigned long *)(vif_stats + xenvif_stats[i].offset);
 		}
 		data[i] = accum;
diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c
index f7a31d2..997cf09 100644
--- a/drivers/net/xen-netback/netback.c
+++ b/drivers/net/xen-netback/netback.c
@@ -96,6 +96,7 @@ static void xenvif_idx_release(struct xenvif_queue *queue, u16 pending_idx,
 static void make_tx_response(struct xenvif_queue *queue,
 			     struct xen_netif_tx_request *txp,
 			     s8       st);
+static void push_tx_responses(struct xenvif_queue *queue);
 
 static inline int tx_work_todo(struct xenvif_queue *queue);
 
@@ -657,6 +658,7 @@ static void xenvif_tx_err(struct xenvif_queue *queue,
 	do {
 		spin_lock_irqsave(&queue->response_lock, flags);
 		make_tx_response(queue, txp, XEN_NETIF_RSP_ERROR);
+		push_tx_responses(queue);
 		spin_unlock_irqrestore(&queue->response_lock, flags);
 		if (cons == end)
 			break;
@@ -1343,7 +1345,7 @@ static int xenvif_handle_frag_list(struct xenvif_queue *queue, struct sk_buff *s
 {
 	unsigned int offset = skb_headlen(skb);
 	skb_frag_t frags[MAX_SKB_FRAGS];
-	int i;
+	int i, f;
 	struct ubuf_info *uarg;
 	struct sk_buff *nskb = skb_shinfo(skb)->frag_list;
 
@@ -1383,23 +1385,25 @@ static int xenvif_handle_frag_list(struct xenvif_queue *queue, struct sk_buff *s
 		frags[i].page_offset = 0;
 		skb_frag_size_set(&frags[i], len);
 	}
-	/* swap out with old one */
-	memcpy(skb_shinfo(skb)->frags,
-	       frags,
-	       i * sizeof(skb_frag_t));
-	skb_shinfo(skb)->nr_frags = i;
-	skb->truesize += i * PAGE_SIZE;
 
-	/* remove traces of mapped pages and frag_list */
+	/* Copied all the bits from the frag list -- free it. */
 	skb_frag_list_init(skb);
+	xenvif_skb_zerocopy_prepare(queue, nskb);
+	kfree_skb(nskb);
+
+	/* Release all the original (foreign) frags. */
+	for (f = 0; f < skb_shinfo(skb)->nr_frags; f++)
+		skb_frag_unref(skb, f);
 	uarg = skb_shinfo(skb)->destructor_arg;
 	/* increase inflight counter to offset decrement in callback */
 	atomic_inc(&queue->inflight_packets);
 	uarg->callback(uarg, true);
 	skb_shinfo(skb)->destructor_arg = NULL;
 
-	xenvif_skb_zerocopy_prepare(queue, nskb);
-	kfree_skb(nskb);
+	/* Fill the skb with the new (local) frags. */
+	memcpy(skb_shinfo(skb)->frags, frags, i * sizeof(skb_frag_t));
+	skb_shinfo(skb)->nr_frags = i;
+	skb->truesize += i * PAGE_SIZE;
 
 	return 0;
 }
@@ -1652,13 +1656,20 @@ static void xenvif_idx_release(struct xenvif_queue *queue, u16 pending_idx,
 	unsigned long flags;
 
 	pending_tx_info = &queue->pending_tx_info[pending_idx];
+
 	spin_lock_irqsave(&queue->response_lock, flags);
+
 	make_tx_response(queue, &pending_tx_info->req, status);
-	index = pending_index(queue->pending_prod);
+
+	/* Release the pending index before pusing the Tx response so
+	 * its available before a new Tx request is pushed by the
+	 * frontend.
+	 */
+	index = pending_index(queue->pending_prod++);
 	queue->pending_ring[index] = pending_idx;
-	/* TX shouldn't use the index before we give it back here */
-	mb();
-	queue->pending_prod++;
+
+	push_tx_responses(queue);
+
 	spin_unlock_irqrestore(&queue->response_lock, flags);
 }
 
@@ -1669,7 +1680,6 @@ static void make_tx_response(struct xenvif_queue *queue,
 {
 	RING_IDX i = queue->tx.rsp_prod_pvt;
 	struct xen_netif_tx_response *resp;
-	int notify;
 
 	resp = RING_GET_RESPONSE(&queue->tx, i);
 	resp->id     = txp->id;
@@ -1679,6 +1689,12 @@ static void make_tx_response(struct xenvif_queue *queue,
 		RING_GET_RESPONSE(&queue->tx, ++i)->status = XEN_NETIF_RSP_NULL;
 
 	queue->tx.rsp_prod_pvt = ++i;
+}
+
+static void push_tx_responses(struct xenvif_queue *queue)
+{
+	int notify;
+
 	RING_PUSH_RESPONSES_AND_CHECK_NOTIFY(&queue->tx, notify);
 	if (notify)
 		notify_remote_via_irq(queue->tx_irq);
diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c
index e9b960f..720aaf6 100644
--- a/drivers/net/xen-netfront.c
+++ b/drivers/net/xen-netfront.c
@@ -1008,8 +1008,7 @@ err:
 
 static int xennet_change_mtu(struct net_device *dev, int mtu)
 {
-	int max = xennet_can_sg(dev) ?
-		XEN_NETIF_MAX_TX_SIZE - MAX_TCP_HEADER : ETH_DATA_LEN;
+	int max = xennet_can_sg(dev) ? XEN_NETIF_MAX_TX_SIZE : ETH_DATA_LEN;
 
 	if (mtu > max)
 		return -EINVAL;
@@ -1279,8 +1278,6 @@ static struct net_device *xennet_create_dev(struct xenbus_device *dev)
 	netdev->ethtool_ops = &xennet_ethtool_ops;
 	SET_NETDEV_DEV(netdev, &dev->dev);
 
-	netif_set_gso_max_size(netdev, XEN_NETIF_MAX_TX_SIZE - MAX_TCP_HEADER);
-
 	np->netdev = netdev;
 
 	netif_carrier_off(netdev);
diff --git a/drivers/of/Kconfig b/drivers/of/Kconfig
index 38d1c51..7bcaeec 100644
--- a/drivers/of/Kconfig
+++ b/drivers/of/Kconfig
@@ -84,8 +84,7 @@ config OF_RESOLVE
 	bool
 
 config OF_OVERLAY
-	bool
-	depends on OF
+	bool "Device Tree overlays"
 	select OF_DYNAMIC
 	select OF_RESOLVE
 
diff --git a/drivers/of/address.c b/drivers/of/address.c
index ad29069..78a7dcb 100644
--- a/drivers/of/address.c
+++ b/drivers/of/address.c
@@ -450,12 +450,17 @@ static struct of_bus *of_match_bus(struct device_node *np)
 	return NULL;
 }
 
-static int of_empty_ranges_quirk(void)
+static int of_empty_ranges_quirk(struct device_node *np)
 {
 	if (IS_ENABLED(CONFIG_PPC)) {
-		/* To save cycles, we cache the result */
+		/* To save cycles, we cache the result for global "Mac" setting */
 		static int quirk_state = -1;
 
+		/* PA-SEMI sdc DT bug */
+		if (of_device_is_compatible(np, "1682m-sdc"))
+			return true;
+
+		/* Make quirk cached */
 		if (quirk_state < 0)
 			quirk_state =
 				of_machine_is_compatible("Power Macintosh") ||
@@ -490,7 +495,7 @@ static int of_translate_one(struct device_node *parent, struct of_bus *bus,
 	 * This code is only enabled on powerpc. --gcl
 	 */
 	ranges = of_get_property(parent, rprop, &rlen);
-	if (ranges == NULL && !of_empty_ranges_quirk()) {
+	if (ranges == NULL && !of_empty_ranges_quirk(parent)) {
 		pr_debug("OF: no ranges; cannot translate\n");
 		return 1;
 	}
diff --git a/drivers/of/base.c b/drivers/of/base.c
index 0a8aeb8..8f165b1 100644
--- a/drivers/of/base.c
+++ b/drivers/of/base.c
@@ -714,16 +714,12 @@ static struct device_node *__of_find_node_by_path(struct device_node *parent,
 						const char *path)
 {
 	struct device_node *child;
-	int len = strchrnul(path, '/') - path;
-	int term;
+	int len;
 
+	len = strcspn(path, "/:");
 	if (!len)
 		return NULL;
 
-	term = strchrnul(path, ':') - path;
-	if (term < len)
-		len = term;
-
 	__for_each_child_of_node(parent, child) {
 		const char *name = strrchr(child->full_name, '/');
 		if (WARN(!name, "malformed device_node %s\n", child->full_name))
@@ -768,8 +764,12 @@ struct device_node *of_find_node_opts_by_path(const char *path, const char **opt
 
 	/* The path could begin with an alias */
 	if (*path != '/') {
-		char *p = strchrnul(path, '/');
-		int len = separator ? separator - path : p - path;
+		int len;
+		const char *p = separator;
+
+		if (!p)
+			p = strchrnul(path, '/');
+		len = p - path;
 
 		/* of_aliases must not be NULL */
 		if (!of_aliases)
@@ -794,6 +794,8 @@ struct device_node *of_find_node_opts_by_path(const char *path, const char **opt
 		path++; /* Increment past '/' delimiter */
 		np = __of_find_node_by_path(np, path);
 		path = strchrnul(path, '/');
+		if (separator && separator < path)
+			break;
 	}
 	raw_spin_unlock_irqrestore(&devtree_lock, flags);
 	return np;
diff --git a/drivers/of/device.c b/drivers/of/device.c
index 46d6c75c..20c1332 100644
--- a/drivers/of/device.c
+++ b/drivers/of/device.c
@@ -2,6 +2,9 @@
 #include <linux/kernel.h>
 #include <linux/of.h>
 #include <linux/of_device.h>
+#include <linux/of_address.h>
+#include <linux/of_iommu.h>
+#include <linux/dma-mapping.h>
 #include <linux/init.h>
 #include <linux/module.h>
 #include <linux/mod_devicetable.h>
@@ -66,6 +69,87 @@ int of_device_add(struct platform_device *ofdev)
 	return device_add(&ofdev->dev);
 }
 
+/**
+ * of_dma_configure - Setup DMA configuration
+ * @dev:	Device to apply DMA configuration
+ * @np:		Pointer to OF node having DMA configuration
+ *
+ * Try to get devices's DMA configuration from DT and update it
+ * accordingly.
+ *
+ * If platform code needs to use its own special DMA configuration, it
+ * can use a platform bus notifier and handle BUS_NOTIFY_ADD_DEVICE events
+ * to fix up DMA configuration.
+ */
+void of_dma_configure(struct device *dev, struct device_node *np)
+{
+	u64 dma_addr, paddr, size;
+	int ret;
+	bool coherent;
+	unsigned long offset;
+	struct iommu_ops *iommu;
+
+	/*
+	 * Set default coherent_dma_mask to 32 bit.  Drivers are expected to
+	 * setup the correct supported mask.
+	 */
+	if (!dev->coherent_dma_mask)
+		dev->coherent_dma_mask = DMA_BIT_MASK(32);
+
+	/*
+	 * Set it to coherent_dma_mask by default if the architecture
+	 * code has not set it.
+	 */
+	if (!dev->dma_mask)
+		dev->dma_mask = &dev->coherent_dma_mask;
+
+	ret = of_dma_get_range(np, &dma_addr, &paddr, &size);
+	if (ret < 0) {
+		dma_addr = offset = 0;
+		size = dev->coherent_dma_mask + 1;
+	} else {
+		offset = PFN_DOWN(paddr - dma_addr);
+
+		/*
+		 * Add a work around to treat the size as mask + 1 in case
+		 * it is defined in DT as a mask.
+		 */
+		if (size & 1) {
+			dev_warn(dev, "Invalid size 0x%llx for dma-range\n",
+				 size);
+			size = size + 1;
+		}
+
+		if (!size) {
+			dev_err(dev, "Adjusted size 0x%llx invalid\n", size);
+			return;
+		}
+		dev_dbg(dev, "dma_pfn_offset(%#08lx)\n", offset);
+	}
+
+	dev->dma_pfn_offset = offset;
+
+	/*
+	 * Limit coherent and dma mask based on size and default mask
+	 * set by the driver.
+	 */
+	dev->coherent_dma_mask = min(dev->coherent_dma_mask,
+				     DMA_BIT_MASK(ilog2(dma_addr + size)));
+	*dev->dma_mask = min((*dev->dma_mask),
+			     DMA_BIT_MASK(ilog2(dma_addr + size)));
+
+	coherent = of_dma_is_coherent(np);
+	dev_dbg(dev, "device is%sdma coherent\n",
+		coherent ? " " : " not ");
+
+	iommu = of_iommu_configure(dev, np);
+	dev_dbg(dev, "device is%sbehind an iommu\n",
+		iommu ? " " : " not ");
+
+	arch_setup_dma_ops(dev, dma_addr, size, iommu, coherent);
+}
+EXPORT_SYMBOL_GPL(of_dma_configure);
+
 int of_device_register(struct platform_device *pdev)
 {
 	device_initialize(&pdev->dev);
diff --git a/drivers/of/irq.c b/drivers/of/irq.c
index 0d77658..1a79806 100644
--- a/drivers/of/irq.c
+++ b/drivers/of/irq.c
@@ -290,7 +290,7 @@ int of_irq_parse_one(struct device_node *device, int index, struct of_phandle_ar
 	struct device_node *p;
 	const __be32 *intspec, *tmp, *addr;
 	u32 intsize, intlen;
-	int i, res = -EINVAL;
+	int i, res;
 
 	pr_debug("of_irq_parse_one: dev=%s, index=%d\n", of_node_full_name(device), index);
 
@@ -323,15 +323,19 @@ int of_irq_parse_one(struct device_node *device, int index, struct of_phandle_ar
 
 	/* Get size of interrupt specifier */
 	tmp = of_get_property(p, "#interrupt-cells", NULL);
-	if (tmp == NULL)
+	if (tmp == NULL) {
+		res = -EINVAL;
 		goto out;
+	}
 	intsize = be32_to_cpu(*tmp);
 
 	pr_debug(" intsize=%d intlen=%d\n", intsize, intlen);
 
 	/* Check index */
-	if ((index + 1) * intsize > intlen)
+	if ((index + 1) * intsize > intlen) {
+		res = -EINVAL;
 		goto out;
+	}
 
 	/* Copy intspec into irq structure */
 	intspec += index * intsize;
diff --git a/drivers/of/of_pci.c b/drivers/of/of_pci.c
index 62426d8..5751dc5 100644
--- a/drivers/of/of_pci.c
+++ b/drivers/of/of_pci.c
@@ -2,6 +2,7 @@
 #include <linux/export.h>
 #include <linux/of.h>
 #include <linux/of_address.h>
+#include <linux/of_device.h>
 #include <linux/of_pci.h>
 #include <linux/slab.h>
 
@@ -116,6 +117,26 @@ int of_get_pci_domain_nr(struct device_node *node)
 }
 EXPORT_SYMBOL_GPL(of_get_pci_domain_nr);
 
+/**
+ * of_pci_dma_configure - Setup DMA configuration
+ * @dev: ptr to pci_dev struct of the PCI device
+ *
+ * Function to update PCI devices's DMA configuration using the same
+ * info from the OF node of host bridge's parent (if any).
+ */
+void of_pci_dma_configure(struct pci_dev *pci_dev)
+{
+	struct device *dev = &pci_dev->dev;
+	struct device *bridge = pci_get_host_bridge_device(pci_dev);
+
+	if (!bridge->parent)
+		return;
+
+	of_dma_configure(dev, bridge->parent->of_node);
+	pci_put_host_bridge_device(bridge);
+}
+EXPORT_SYMBOL_GPL(of_pci_dma_configure);
+
 #if defined(CONFIG_OF_ADDRESS)
 /**
  * of_pci_get_host_bridge_resources - Parse PCI host bridge resources from DT
diff --git a/drivers/of/overlay.c b/drivers/of/overlay.c
index 352b4f2..dee9270 100644
--- a/drivers/of/overlay.c
+++ b/drivers/of/overlay.c
@@ -19,6 +19,7 @@
 #include <linux/string.h>
 #include <linux/slab.h>
 #include <linux/err.h>
+#include <linux/idr.h>
 
 #include "of_private.h"
 
@@ -85,7 +86,7 @@ static int of_overlay_apply_single_device_node(struct of_overlay *ov,
 		struct device_node *target, struct device_node *child)
 {
 	const char *cname;
-	struct device_node *tchild, *grandchild;
+	struct device_node *tchild;
 	int ret = 0;
 
 	cname = kbasename(child->full_name);
diff --git a/drivers/of/platform.c b/drivers/of/platform.c
index b189733..a01f57c 100644
--- a/drivers/of/platform.c
+++ b/drivers/of/platform.c
@@ -19,7 +19,6 @@
 #include <linux/slab.h>
 #include <linux/of_address.h>
 #include <linux/of_device.h>
-#include <linux/of_iommu.h>
 #include <linux/of_irq.h>
 #include <linux/of_platform.h>
 #include <linux/platform_device.h>
@@ -150,59 +149,6 @@ struct platform_device *of_device_alloc(struct device_node *np,
 }
 EXPORT_SYMBOL(of_device_alloc);
 
-/**
- * of_dma_configure - Setup DMA configuration
- * @dev:	Device to apply DMA configuration
- *
- * Try to get devices's DMA configuration from DT and update it
- * accordingly.
- *
- * In case if platform code need to use own special DMA configuration,it
- * can use Platform bus notifier and handle BUS_NOTIFY_ADD_DEVICE event
- * to fix up DMA configuration.
- */
-static void of_dma_configure(struct device *dev)
-{
-	u64 dma_addr, paddr, size;
-	int ret;
-	bool coherent;
-	unsigned long offset;
-	struct iommu_ops *iommu;
-
-	/*
-	 * Set default dma-mask to 32 bit. Drivers are expected to setup
-	 * the correct supported dma_mask.
-	 */
-	dev->coherent_dma_mask = DMA_BIT_MASK(32);
-
-	/*
-	 * Set it to coherent_dma_mask by default if the architecture
-	 * code has not set it.
-	 */
-	if (!dev->dma_mask)
-		dev->dma_mask = &dev->coherent_dma_mask;
-
-	ret = of_dma_get_range(dev->of_node, &dma_addr, &paddr, &size);
-	if (ret < 0) {
-		dma_addr = offset = 0;
-		size = dev->coherent_dma_mask;
-	} else {
-		offset = PFN_DOWN(paddr - dma_addr);
-		dev_dbg(dev, "dma_pfn_offset(%#08lx)\n", offset);
-	}
-	dev->dma_pfn_offset = offset;
-
-	coherent = of_dma_is_coherent(dev->of_node);
-	dev_dbg(dev, "device is%sdma coherent\n",
-		coherent ? " " : " not ");
-
-	iommu = of_iommu_configure(dev);
-	dev_dbg(dev, "device is%sbehind an iommu\n",
-		iommu ? " " : " not ");
-
-	arch_setup_dma_ops(dev, dma_addr, size, iommu, coherent);
-}
-
 static void of_dma_deconfigure(struct device *dev)
 {
 	arch_teardown_dma_ops(dev);
@@ -236,7 +182,7 @@ static struct platform_device *of_platform_device_create_pdata(
 
 	dev->dev.bus = &platform_bus_type;
 	dev->dev.platform_data = platform_data;
-	of_dma_configure(&dev->dev);
+	of_dma_configure(&dev->dev, dev->dev.of_node);
 
 	if (of_device_add(dev) != 0) {
 		of_dma_deconfigure(&dev->dev);
@@ -299,7 +245,7 @@ static struct amba_device *of_amba_device_create(struct device_node *node,
 		dev_set_name(&dev->dev, "%s", bus_id);
 	else
 		of_device_make_bus_id(&dev->dev);
-	of_dma_configure(&dev->dev);
+	of_dma_configure(&dev->dev, dev->dev.of_node);
 
 	/* Allow the HW Peripheral ID to be overridden */
 	prop = of_get_property(node, "arm,primecell-periphid", NULL);
diff --git a/drivers/of/unittest.c b/drivers/of/unittest.c
index 0cf9a23..52c45c7 100644
--- a/drivers/of/unittest.c
+++ b/drivers/of/unittest.c
@@ -92,6 +92,16 @@ static void __init of_selftest_find_node_by_name(void)
 		 "option path test failed\n");
 	of_node_put(np);
 
+	np = of_find_node_opts_by_path("/testcase-data:test/option", &options);
+	selftest(np && !strcmp("test/option", options),
+		 "option path test, subcase #1 failed\n");
+	of_node_put(np);
+
+	np = of_find_node_opts_by_path("/testcase-data/testcase-device1:test/option", &options);
+	selftest(np && !strcmp("test/option", options),
+		 "option path test, subcase #2 failed\n");
+	of_node_put(np);
+
 	np = of_find_node_opts_by_path("/testcase-data:testoption", NULL);
 	selftest(np, "NULL option path test failed\n");
 	of_node_put(np);
@@ -102,6 +112,12 @@ static void __init of_selftest_find_node_by_name(void)
 		 "option alias path test failed\n");
 	of_node_put(np);
 
+	np = of_find_node_opts_by_path("testcase-alias:test/alias/option",
+				       &options);
+	selftest(np && !strcmp("test/alias/option", options),
+		 "option alias path test, subcase #1 failed\n");
+	of_node_put(np);
+
 	np = of_find_node_opts_by_path("testcase-alias:testaliasoption", NULL);
 	selftest(np, "NULL option alias path test failed\n");
 	of_node_put(np);
@@ -378,9 +394,9 @@ static void __init of_selftest_property_string(void)
 	rc = of_property_match_string(np, "phandle-list-names", "first");
 	selftest(rc == 0, "first expected:0 got:%i\n", rc);
 	rc = of_property_match_string(np, "phandle-list-names", "second");
-	selftest(rc == 1, "second expected:0 got:%i\n", rc);
+	selftest(rc == 1, "second expected:1 got:%i\n", rc);
 	rc = of_property_match_string(np, "phandle-list-names", "third");
-	selftest(rc == 2, "third expected:0 got:%i\n", rc);
+	selftest(rc == 2, "third expected:2 got:%i\n", rc);
 	rc = of_property_match_string(np, "phandle-list-names", "fourth");
 	selftest(rc == -ENODATA, "unmatched string; rc=%i\n", rc);
 	rc = of_property_match_string(np, "missing-property", "blah");
@@ -478,7 +494,6 @@ static void __init of_selftest_changeset(void)
 	struct device_node *n1, *n2, *n21, *nremove, *parent, *np;
 	struct of_changeset chgset;
 
-	of_changeset_init(&chgset);
 	n1 = __of_node_dup(NULL, "/testcase-data/changeset/n1");
 	selftest(n1, "testcase setup failure\n");
 	n2 = __of_node_dup(NULL, "/testcase-data/changeset/n2");
@@ -979,7 +994,7 @@ static int of_path_platform_device_exists(const char *path)
 	return pdev != NULL;
 }
 
-#if IS_ENABLED(CONFIG_I2C)
+#if IS_BUILTIN(CONFIG_I2C)
 
 /* get the i2c client device instantiated at the path */
 static struct i2c_client *of_path_to_i2c_client(const char *path)
@@ -1445,7 +1460,7 @@ static void of_selftest_overlay_11(void)
 		return;
 }
 
-#if IS_ENABLED(CONFIG_I2C) && IS_ENABLED(CONFIG_OF_OVERLAY)
+#if IS_BUILTIN(CONFIG_I2C) && IS_ENABLED(CONFIG_OF_OVERLAY)
 
 struct selftest_i2c_bus_data {
 	struct platform_device	*pdev;
@@ -1584,7 +1599,7 @@ static struct i2c_driver selftest_i2c_dev_driver = {
 	.id_table = selftest_i2c_dev_id,
 };
 
-#if IS_ENABLED(CONFIG_I2C_MUX)
+#if IS_BUILTIN(CONFIG_I2C_MUX)
 
 struct selftest_i2c_mux_data {
 	int nchans;
@@ -1695,7 +1710,7 @@ static int of_selftest_overlay_i2c_init(void)
 			"could not register selftest i2c bus driver\n"))
 		return ret;
 
-#if IS_ENABLED(CONFIG_I2C_MUX)
+#if IS_BUILTIN(CONFIG_I2C_MUX)
 	ret = i2c_add_driver(&selftest_i2c_mux_driver);
 	if (selftest(ret == 0,
 			"could not register selftest i2c mux driver\n"))
@@ -1707,7 +1722,7 @@ static int of_selftest_overlay_i2c_init(void)
 
 static void of_selftest_overlay_i2c_cleanup(void)
 {
-#if IS_ENABLED(CONFIG_I2C_MUX)
+#if IS_BUILTIN(CONFIG_I2C_MUX)
 	i2c_del_driver(&selftest_i2c_mux_driver);
 #endif
 	platform_driver_unregister(&selftest_i2c_bus_driver);
@@ -1814,7 +1829,7 @@ static void __init of_selftest_overlay(void)
 	of_selftest_overlay_10();
 	of_selftest_overlay_11();
 
-#if IS_ENABLED(CONFIG_I2C)
+#if IS_BUILTIN(CONFIG_I2C)
 	if (selftest(of_selftest_overlay_i2c_init() == 0, "i2c init failed\n"))
 		goto out;
 
diff --git a/drivers/pci/host-bridge.c b/drivers/pci/host-bridge.c
index 39b2dbe..5f4a2e0 100644
--- a/drivers/pci/host-bridge.c
+++ b/drivers/pci/host-bridge.c
@@ -16,13 +16,27 @@ static struct pci_bus *find_pci_root_bus(struct pci_bus *bus)
 	return bus;
 }
 
-static struct pci_host_bridge *find_pci_host_bridge(struct pci_bus *bus)
+struct pci_host_bridge *pci_find_host_bridge(struct pci_bus *bus)
 {
 	struct pci_bus *root_bus = find_pci_root_bus(bus);
 
 	return to_pci_host_bridge(root_bus->bridge);
 }
 
+struct device *pci_get_host_bridge_device(struct pci_dev *dev)
+{
+	struct pci_bus *root_bus = find_pci_root_bus(dev->bus);
+	struct device *bridge = root_bus->bridge;
+
+	kobject_get(&bridge->kobj);
+	return bridge;
+}
+
+void  pci_put_host_bridge_device(struct device *dev)
+{
+	kobject_put(&dev->kobj);
+}
+
 void pci_set_host_bridge_release(struct pci_host_bridge *bridge,
 				 void (*release_fn)(struct pci_host_bridge *),
 				 void *release_data)
@@ -34,7 +48,7 @@ void pci_set_host_bridge_release(struct pci_host_bridge *bridge,
 void pcibios_resource_to_bus(struct pci_bus *bus, struct pci_bus_region *region,
 			     struct resource *res)
 {
-	struct pci_host_bridge *bridge = find_pci_host_bridge(bus);
+	struct pci_host_bridge *bridge = pci_find_host_bridge(bus);
 	struct resource_entry *window;
 	resource_size_t offset = 0;
 
@@ -59,7 +73,7 @@ static bool region_contains(struct pci_bus_region *region1,
 void pcibios_bus_to_resource(struct pci_bus *bus, struct resource *res,
 			     struct pci_bus_region *region)
 {
-	struct pci_host_bridge *bridge = find_pci_host_bridge(bus);
+	struct pci_host_bridge *bridge = pci_find_host_bridge(bus);
 	struct resource_entry *window;
 	resource_size_t offset = 0;
 
diff --git a/drivers/pci/host/Kconfig b/drivers/pci/host/Kconfig
index 7b892a9..1dfb567 100644
--- a/drivers/pci/host/Kconfig
+++ b/drivers/pci/host/Kconfig
@@ -106,4 +106,23 @@ config PCI_VERSATILE
 	bool "ARM Versatile PB PCI controller"
 	depends on ARCH_VERSATILE
 
+config PCIE_IPROC
+	tristate "Broadcom iProc PCIe controller"
+	depends on OF && ARM
+	default n
+	help
+	  This enables the iProc PCIe core controller support for Broadcom's
+	  iProc family of SoCs. An appropriate bus interface driver also needs
+	  to be enabled
+
+config PCIE_IPROC_PLATFORM
+	tristate "Broadcom iProc PCIe platform bus driver"
+	depends on ARCH_BCM_IPROC || (ARM && COMPILE_TEST)
+	depends on OF
+	select PCIE_IPROC
+	default ARCH_BCM_IPROC
+	help
+	  Say Y here if you want to use the Broadcom iProc PCIe controller
+	  through the generic platform bus interface
+
 endmenu
diff --git a/drivers/pci/host/Makefile b/drivers/pci/host/Makefile
index e61d91c..f733b4e 100644
--- a/drivers/pci/host/Makefile
+++ b/drivers/pci/host/Makefile
@@ -13,3 +13,5 @@ obj-$(CONFIG_PCIE_XILINX) += pcie-xilinx.o
 obj-$(CONFIG_PCI_XGENE) += pci-xgene.o
 obj-$(CONFIG_PCI_LAYERSCAPE) += pci-layerscape.o
 obj-$(CONFIG_PCI_VERSATILE) += pci-versatile.o
+obj-$(CONFIG_PCIE_IPROC) += pcie-iproc.o
+obj-$(CONFIG_PCIE_IPROC_PLATFORM) += pcie-iproc-platform.o
diff --git a/drivers/pci/host/pci-exynos.c b/drivers/pci/host/pci-exynos.c
index d202b37..c139237 100644
--- a/drivers/pci/host/pci-exynos.c
+++ b/drivers/pci/host/pci-exynos.c
@@ -396,7 +396,7 @@ static void exynos_pcie_enable_irq_pulse(struct pcie_port *pp)
 
 	/* enable INTX interrupt */
 	val = IRQ_INTA_ASSERT | IRQ_INTB_ASSERT |
-		IRQ_INTC_ASSERT | IRQ_INTD_ASSERT,
+		IRQ_INTC_ASSERT | IRQ_INTD_ASSERT;
 	exynos_elb_writel(exynos_pcie, val, PCIE_IRQ_EN_PULSE);
 }
 
diff --git a/drivers/pci/host/pci-keystone-dw.c b/drivers/pci/host/pci-keystone-dw.c
index 66d8ea4..f34892e 100644
--- a/drivers/pci/host/pci-keystone-dw.c
+++ b/drivers/pci/host/pci-keystone-dw.c
@@ -496,11 +496,12 @@ int __init ks_dw_pcie_host_init(struct keystone_pcie *ks_pcie,
 
 	/* Index 1 is the application reg. space address */
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
-	ks_pcie->app = *res;
 	ks_pcie->va_app_base = devm_ioremap_resource(pp->dev, res);
 	if (IS_ERR(ks_pcie->va_app_base))
 		return PTR_ERR(ks_pcie->va_app_base);
 
+	ks_pcie->app = *res;
+
 	/* Create legacy IRQ domain */
 	ks_pcie->legacy_irq_domain =
 			irq_domain_add_linear(ks_pcie->legacy_intc_np,
diff --git a/drivers/pci/host/pci-layerscape.c b/drivers/pci/host/pci-layerscape.c
index 68c9e5e..4a6e62f 100644
--- a/drivers/pci/host/pci-layerscape.c
+++ b/drivers/pci/host/pci-layerscape.c
@@ -127,14 +127,11 @@ static int __init ls_pcie_probe(struct platform_device *pdev)
 	pcie->dev = &pdev->dev;
 
 	dbi_base = platform_get_resource_byname(pdev, IORESOURCE_MEM, "regs");
-	if (!dbi_base) {
-		dev_err(&pdev->dev, "missing *regs* space\n");
-		return -ENODEV;
-	}
-
 	pcie->dbi = devm_ioremap_resource(&pdev->dev, dbi_base);
-	if (IS_ERR(pcie->dbi))
+	if (IS_ERR(pcie->dbi)) {
+		dev_err(&pdev->dev, "missing *regs* space\n");
 		return PTR_ERR(pcie->dbi);
+	}
 
 	pcie->scfg = syscon_regmap_lookup_by_phandle(pdev->dev.of_node,
 						     "fsl,pcie-scfg");
diff --git a/drivers/pci/host/pci-mvebu.c b/drivers/pci/host/pci-mvebu.c
index 1309cfb..1ab8635 100644
--- a/drivers/pci/host/pci-mvebu.c
+++ b/drivers/pci/host/pci-mvebu.c
@@ -129,6 +129,7 @@ struct mvebu_pcie_port {
 	size_t memwin_size;
 	phys_addr_t iowin_base;
 	size_t iowin_size;
+	u32 saved_pcie_stat;
 };
 
 static inline void mvebu_writel(struct mvebu_pcie_port *port, u32 val, u32 reg)
@@ -899,6 +900,35 @@ static void mvebu_pcie_msi_enable(struct mvebu_pcie *pcie)
 		pcie->msi->dev = &pcie->pdev->dev;
 }
 
+static int mvebu_pcie_suspend(struct device *dev)
+{
+	struct mvebu_pcie *pcie;
+	int i;
+
+	pcie = dev_get_drvdata(dev);
+	for (i = 0; i < pcie->nports; i++) {
+		struct mvebu_pcie_port *port = pcie->ports + i;
+		port->saved_pcie_stat = mvebu_readl(port, PCIE_STAT_OFF);
+	}
+
+	return 0;
+}
+
+static int mvebu_pcie_resume(struct device *dev)
+{
+	struct mvebu_pcie *pcie;
+	int i;
+
+	pcie = dev_get_drvdata(dev);
+	for (i = 0; i < pcie->nports; i++) {
+		struct mvebu_pcie_port *port = pcie->ports + i;
+		mvebu_writel(port, port->saved_pcie_stat, PCIE_STAT_OFF);
+		mvebu_pcie_setup_hw(port);
+	}
+
+	return 0;
+}
+
 static int mvebu_pcie_probe(struct platform_device *pdev)
 {
 	struct mvebu_pcie *pcie;
@@ -1056,6 +1086,8 @@ static int mvebu_pcie_probe(struct platform_device *pdev)
 	mvebu_pcie_msi_enable(pcie);
 	mvebu_pcie_enable(pcie);
 
+	platform_set_drvdata(pdev, pcie);
+
 	return 0;
 }
 
@@ -1068,12 +1100,18 @@ static const struct of_device_id mvebu_pcie_of_match_table[] = {
 };
 MODULE_DEVICE_TABLE(of, mvebu_pcie_of_match_table);
 
+static struct dev_pm_ops mvebu_pcie_pm_ops = {
+	.suspend_noirq = mvebu_pcie_suspend,
+	.resume_noirq = mvebu_pcie_resume,
+};
+
 static struct platform_driver mvebu_pcie_driver = {
 	.driver = {
 		.name = "mvebu-pcie",
 		.of_match_table = mvebu_pcie_of_match_table,
 		/* driver unloading/unbinding currently not supported */
 		.suppress_bind_attrs = true,
+		.pm = &mvebu_pcie_pm_ops,
 	},
 	.probe = mvebu_pcie_probe,
 };
diff --git a/drivers/pci/host/pci-rcar-gen2.c b/drivers/pci/host/pci-rcar-gen2.c
index dd6b84e..367e28f 100644
--- a/drivers/pci/host/pci-rcar-gen2.c
+++ b/drivers/pci/host/pci-rcar-gen2.c
@@ -301,6 +301,9 @@ static int rcar_pci_probe(struct platform_device *pdev)
 	if (!mem_res || !mem_res->start)
 		return -ENODEV;
 
+	if (mem_res->start & 0xFFFF)
+		return -EINVAL;
+
 	priv = devm_kzalloc(&pdev->dev,
 			    sizeof(struct rcar_pci_priv), GFP_KERNEL);
 	if (!priv)
diff --git a/drivers/pci/host/pci-versatile.c b/drivers/pci/host/pci-versatile.c
index 1ec694a..0863d9c 100644
--- a/drivers/pci/host/pci-versatile.c
+++ b/drivers/pci/host/pci-versatile.c
@@ -80,7 +80,7 @@ static int versatile_pci_parse_request_of_pci_ranges(struct device *dev,
 	if (err)
 		return err;
 
-	resource_list_for_each_entry(win, res, list) {
+	resource_list_for_each_entry(win, res) {
 		struct resource *parent, *res = win->res;
 
 		switch (resource_type(res)) {
@@ -138,19 +138,19 @@ static int versatile_pci_probe(struct platform_device *pdev)
 	LIST_HEAD(pci_res);
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res)
-		return -ENODEV;
 	versatile_pci_base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(versatile_pci_base))
+		return PTR_ERR(versatile_pci_base);
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
-	if (!res)
-		return -ENODEV;
 	versatile_cfg_base[0] = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(versatile_cfg_base[0]))
+		return PTR_ERR(versatile_cfg_base[0]);
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 2);
-	if (!res)
-		return -ENODEV;
 	versatile_cfg_base[1] = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(versatile_cfg_base[1]))
+		return PTR_ERR(versatile_cfg_base[1]);
 
 	ret = versatile_pci_parse_request_of_pci_ranges(&pdev->dev, &pci_res);
 	if (ret)
@@ -214,6 +214,7 @@ static int versatile_pci_probe(struct platform_device *pdev)
 
 	pci_fixup_irqs(pci_common_swizzle, of_irq_parse_and_map_pci);
 	pci_assign_unassigned_bus_resources(bus);
+	pci_bus_add_devices(bus);
 
 	return 0;
 }
diff --git a/drivers/pci/host/pci-xgene.c b/drivers/pci/host/pci-xgene.c
index aab5547..ee082c0 100644
--- a/drivers/pci/host/pci-xgene.c
+++ b/drivers/pci/host/pci-xgene.c
@@ -127,7 +127,7 @@ static bool xgene_pcie_hide_rc_bars(struct pci_bus *bus, int offset)
 	return false;
 }
 
-static int xgene_pcie_map_bus(struct pci_bus *bus, unsigned int devfn,
+static void __iomem *xgene_pcie_map_bus(struct pci_bus *bus, unsigned int devfn,
 			      int offset)
 {
 	struct xgene_pcie_port *port = bus->sysdata;
@@ -137,7 +137,7 @@ static int xgene_pcie_map_bus(struct pci_bus *bus, unsigned int devfn,
 		return NULL;
 
 	xgene_pcie_set_rtdid_reg(bus, devfn);
-	return xgene_pcie_get_cfg_base(bus);
+	return xgene_pcie_get_cfg_base(bus) + offset;
 }
 
 static struct pci_ops xgene_pcie_ops = {
diff --git a/drivers/pci/host/pcie-designware.c b/drivers/pci/host/pcie-designware.c
index 1f4ea6f..2e9f84f 100644
--- a/drivers/pci/host/pcie-designware.c
+++ b/drivers/pci/host/pcie-designware.c
@@ -342,7 +342,7 @@ static const struct irq_domain_ops msi_domain_ops = {
 	.map = dw_pcie_msi_map,
 };
 
-int __init dw_pcie_host_init(struct pcie_port *pp)
+int dw_pcie_host_init(struct pcie_port *pp)
 {
 	struct device_node *np = pp->dev->of_node;
 	struct platform_device *pdev = to_platform_device(pp->dev);
diff --git a/drivers/pci/host/pcie-iproc-platform.c b/drivers/pci/host/pcie-iproc-platform.c
new file mode 100644
index 0000000..afad6c2
--- /dev/null
+++ b/drivers/pci/host/pcie-iproc-platform.c
@@ -0,0 +1,108 @@
+/*
+ * Copyright (C) 2015 Broadcom Corporation
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation version 2.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/kernel.h>
+#include <linux/pci.h>
+#include <linux/clk.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <linux/of_address.h>
+#include <linux/of_pci.h>
+#include <linux/of_irq.h>
+#include <linux/of_platform.h>
+#include <linux/phy/phy.h>
+
+#include "pcie-iproc.h"
+
+static int iproc_pcie_pltfm_probe(struct platform_device *pdev)
+{
+	struct iproc_pcie *pcie;
+	struct device_node *np = pdev->dev.of_node;
+	struct resource reg;
+	resource_size_t iobase = 0;
+	LIST_HEAD(res);
+	int ret;
+
+	pcie = devm_kzalloc(&pdev->dev, sizeof(struct iproc_pcie), GFP_KERNEL);
+	if (!pcie)
+		return -ENOMEM;
+
+	pcie->dev = &pdev->dev;
+	platform_set_drvdata(pdev, pcie);
+
+	ret = of_address_to_resource(np, 0, &reg);
+	if (ret < 0) {
+		dev_err(pcie->dev, "unable to obtain controller resources\n");
+		return ret;
+	}
+
+	pcie->base = devm_ioremap(pcie->dev, reg.start, resource_size(&reg));
+	if (!pcie->base) {
+		dev_err(pcie->dev, "unable to map controller registers\n");
+		return -ENOMEM;
+	}
+
+	/* PHY use is optional */
+	pcie->phy = devm_phy_get(&pdev->dev, "pcie-phy");
+	if (IS_ERR(pcie->phy)) {
+		if (PTR_ERR(pcie->phy) == -EPROBE_DEFER)
+			return -EPROBE_DEFER;
+		pcie->phy = NULL;
+	}
+
+	ret = of_pci_get_host_bridge_resources(np, 0, 0xff, &res, &iobase);
+	if (ret) {
+		dev_err(pcie->dev,
+			"unable to get PCI host bridge resources\n");
+		return ret;
+	}
+
+	pcie->resources = &res;
+
+	ret = iproc_pcie_setup(pcie);
+	if (ret) {
+		dev_err(pcie->dev, "PCIe controller setup failed\n");
+		return ret;
+	}
+
+	return 0;
+}
+
+static int iproc_pcie_pltfm_remove(struct platform_device *pdev)
+{
+	struct iproc_pcie *pcie = platform_get_drvdata(pdev);
+
+	return iproc_pcie_remove(pcie);
+}
+
+static const struct of_device_id iproc_pcie_of_match_table[] = {
+	{ .compatible = "brcm,iproc-pcie", },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, iproc_pcie_of_match_table);
+
+static struct platform_driver iproc_pcie_pltfm_driver = {
+	.driver = {
+		.name = "iproc-pcie",
+		.of_match_table = of_match_ptr(iproc_pcie_of_match_table),
+	},
+	.probe = iproc_pcie_pltfm_probe,
+	.remove = iproc_pcie_pltfm_remove,
+};
+module_platform_driver(iproc_pcie_pltfm_driver);
+
+MODULE_AUTHOR("Ray Jui <rjui@broadcom.com>");
+MODULE_DESCRIPTION("Broadcom iPROC PCIe platform driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/pci/host/pcie-iproc.c b/drivers/pci/host/pcie-iproc.c
new file mode 100644
index 0000000..329e1b5
--- /dev/null
+++ b/drivers/pci/host/pcie-iproc.c
@@ -0,0 +1,268 @@
+/*
+ * Copyright (C) 2014 Hauke Mehrtens <hauke@hauke-m.de>
+ * Copyright (C) 2015 Broadcom Corporatcommon ion
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation version 2.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/kernel.h>
+#include <linux/pci.h>
+#include <linux/msi.h>
+#include <linux/clk.h>
+#include <linux/module.h>
+#include <linux/mbus.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <linux/of_address.h>
+#include <linux/of_pci.h>
+#include <linux/of_irq.h>
+#include <linux/of_platform.h>
+#include <linux/phy/phy.h>
+
+#include "pcie-iproc.h"
+
+#define CLK_CONTROL_OFFSET           0x000
+#define EP_MODE_SURVIVE_PERST_SHIFT  1
+#define EP_MODE_SURVIVE_PERST        BIT(EP_MODE_SURVIVE_PERST_SHIFT)
+#define RC_PCIE_RST_OUTPUT_SHIFT     0
+#define RC_PCIE_RST_OUTPUT           BIT(RC_PCIE_RST_OUTPUT_SHIFT)
+
+#define CFG_IND_ADDR_OFFSET          0x120
+#define CFG_IND_ADDR_MASK            0x00001ffc
+
+#define CFG_IND_DATA_OFFSET          0x124
+
+#define CFG_ADDR_OFFSET              0x1f8
+#define CFG_ADDR_BUS_NUM_SHIFT       20
+#define CFG_ADDR_BUS_NUM_MASK        0x0ff00000
+#define CFG_ADDR_DEV_NUM_SHIFT       15
+#define CFG_ADDR_DEV_NUM_MASK        0x000f8000
+#define CFG_ADDR_FUNC_NUM_SHIFT      12
+#define CFG_ADDR_FUNC_NUM_MASK       0x00007000
+#define CFG_ADDR_REG_NUM_SHIFT       2
+#define CFG_ADDR_REG_NUM_MASK        0x00000ffc
+#define CFG_ADDR_CFG_TYPE_SHIFT      0
+#define CFG_ADDR_CFG_TYPE_MASK       0x00000003
+
+#define CFG_DATA_OFFSET              0x1fc
+
+#define SYS_RC_INTX_EN               0x330
+#define SYS_RC_INTX_MASK             0xf
+
+static inline struct iproc_pcie *sys_to_pcie(struct pci_sys_data *sys)
+{
+	return sys->private_data;
+}
+
+/**
+ * Note access to the configuration registers are protected at the higher layer
+ * by 'pci_lock' in drivers/pci/access.c
+ */
+static void __iomem *iproc_pcie_map_cfg_bus(struct pci_bus *bus,
+					    unsigned int devfn,
+					    int where)
+{
+	struct pci_sys_data *sys = bus->sysdata;
+	struct iproc_pcie *pcie = sys_to_pcie(sys);
+	unsigned slot = PCI_SLOT(devfn);
+	unsigned fn = PCI_FUNC(devfn);
+	unsigned busno = bus->number;
+	u32 val;
+
+	/* root complex access */
+	if (busno == 0) {
+		if (slot >= 1)
+			return NULL;
+		writel(where & CFG_IND_ADDR_MASK,
+		       pcie->base + CFG_IND_ADDR_OFFSET);
+		return (pcie->base + CFG_IND_DATA_OFFSET);
+	}
+
+	if (fn > 1)
+		return NULL;
+
+	/* EP device access */
+	val = (busno << CFG_ADDR_BUS_NUM_SHIFT) |
+		(slot << CFG_ADDR_DEV_NUM_SHIFT) |
+		(fn << CFG_ADDR_FUNC_NUM_SHIFT) |
+		(where & CFG_ADDR_REG_NUM_MASK) |
+		(1 & CFG_ADDR_CFG_TYPE_MASK);
+	writel(val, pcie->base + CFG_ADDR_OFFSET);
+
+	return (pcie->base + CFG_DATA_OFFSET);
+}
+
+static struct pci_ops iproc_pcie_ops = {
+	.map_bus = iproc_pcie_map_cfg_bus,
+	.read = pci_generic_config_read32,
+	.write = pci_generic_config_write32,
+};
+
+static void iproc_pcie_reset(struct iproc_pcie *pcie)
+{
+	u32 val;
+
+	/*
+	 * Configure the PCIe controller as root complex and send a downstream
+	 * reset
+	 */
+	val = EP_MODE_SURVIVE_PERST | RC_PCIE_RST_OUTPUT;
+	writel(val, pcie->base + CLK_CONTROL_OFFSET);
+	udelay(250);
+	val &= ~EP_MODE_SURVIVE_PERST;
+	writel(val, pcie->base + CLK_CONTROL_OFFSET);
+	msleep(250);
+}
+
+static int iproc_pcie_check_link(struct iproc_pcie *pcie, struct pci_bus *bus)
+{
+	u8 hdr_type;
+	u32 link_ctrl;
+	u16 pos, link_status;
+	int link_is_active = 0;
+
+	/* make sure we are not in EP mode */
+	pci_bus_read_config_byte(bus, 0, PCI_HEADER_TYPE, &hdr_type);
+	if ((hdr_type & 0x7f) != PCI_HEADER_TYPE_BRIDGE) {
+		dev_err(pcie->dev, "in EP mode, hdr=%#02x\n", hdr_type);
+		return -EFAULT;
+	}
+
+	/* force class to PCI_CLASS_BRIDGE_PCI (0x0604) */
+	pci_bus_write_config_word(bus, 0, PCI_CLASS_DEVICE,
+				  PCI_CLASS_BRIDGE_PCI);
+
+	/* check link status to see if link is active */
+	pos = pci_bus_find_capability(bus, 0, PCI_CAP_ID_EXP);
+	pci_bus_read_config_word(bus, 0, pos + PCI_EXP_LNKSTA, &link_status);
+	if (link_status & PCI_EXP_LNKSTA_NLW)
+		link_is_active = 1;
+
+	if (!link_is_active) {
+		/* try GEN 1 link speed */
+#define PCI_LINK_STATUS_CTRL_2_OFFSET 0x0dc
+#define PCI_TARGET_LINK_SPEED_MASK    0xf
+#define PCI_TARGET_LINK_SPEED_GEN2    0x2
+#define PCI_TARGET_LINK_SPEED_GEN1    0x1
+		pci_bus_read_config_dword(bus, 0,
+					  PCI_LINK_STATUS_CTRL_2_OFFSET,
+					  &link_ctrl);
+		if ((link_ctrl & PCI_TARGET_LINK_SPEED_MASK) ==
+		    PCI_TARGET_LINK_SPEED_GEN2) {
+			link_ctrl &= ~PCI_TARGET_LINK_SPEED_MASK;
+			link_ctrl |= PCI_TARGET_LINK_SPEED_GEN1;
+			pci_bus_write_config_dword(bus, 0,
+					   PCI_LINK_STATUS_CTRL_2_OFFSET,
+					   link_ctrl);
+			msleep(100);
+
+			pos = pci_bus_find_capability(bus, 0, PCI_CAP_ID_EXP);
+			pci_bus_read_config_word(bus, 0, pos + PCI_EXP_LNKSTA,
+						 &link_status);
+			if (link_status & PCI_EXP_LNKSTA_NLW)
+				link_is_active = 1;
+		}
+	}
+
+	dev_info(pcie->dev, "link: %s\n", link_is_active ? "UP" : "DOWN");
+
+	return link_is_active ? 0 : -ENODEV;
+}
+
+static void iproc_pcie_enable(struct iproc_pcie *pcie)
+{
+	writel(SYS_RC_INTX_MASK, pcie->base + SYS_RC_INTX_EN);
+}
+
+int iproc_pcie_setup(struct iproc_pcie *pcie)
+{
+	int ret;
+	struct pci_bus *bus;
+
+	if (!pcie || !pcie->dev || !pcie->base)
+		return -EINVAL;
+
+	if (pcie->phy) {
+		ret = phy_init(pcie->phy);
+		if (ret) {
+			dev_err(pcie->dev, "unable to initialize PCIe PHY\n");
+			return ret;
+		}
+
+		ret = phy_power_on(pcie->phy);
+		if (ret) {
+			dev_err(pcie->dev, "unable to power on PCIe PHY\n");
+			goto err_exit_phy;
+		}
+
+	}
+
+	iproc_pcie_reset(pcie);
+
+	pcie->sysdata.private_data = pcie;
+
+	bus = pci_create_root_bus(pcie->dev, 0, &iproc_pcie_ops,
+				  &pcie->sysdata, pcie->resources);
+	if (!bus) {
+		dev_err(pcie->dev, "unable to create PCI root bus\n");
+		ret = -ENOMEM;
+		goto err_power_off_phy;
+	}
+	pcie->root_bus = bus;
+
+	ret = iproc_pcie_check_link(pcie, bus);
+	if (ret) {
+		dev_err(pcie->dev, "no PCIe EP device detected\n");
+		goto err_rm_root_bus;
+	}
+
+	iproc_pcie_enable(pcie);
+
+	pci_scan_child_bus(bus);
+	pci_assign_unassigned_bus_resources(bus);
+	pci_fixup_irqs(pci_common_swizzle, of_irq_parse_and_map_pci);
+	pci_bus_add_devices(bus);
+
+	return 0;
+
+err_rm_root_bus:
+	pci_stop_root_bus(bus);
+	pci_remove_root_bus(bus);
+
+err_power_off_phy:
+	if (pcie->phy)
+		phy_power_off(pcie->phy);
+err_exit_phy:
+	if (pcie->phy)
+		phy_exit(pcie->phy);
+
+	return ret;
+}
+EXPORT_SYMBOL(iproc_pcie_setup);
+
+int iproc_pcie_remove(struct iproc_pcie *pcie)
+{
+	pci_stop_root_bus(pcie->root_bus);
+	pci_remove_root_bus(pcie->root_bus);
+
+	if (pcie->phy) {
+		phy_power_off(pcie->phy);
+		phy_exit(pcie->phy);
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL(iproc_pcie_remove);
+
+MODULE_AUTHOR("Ray Jui <rjui@broadcom.com>");
+MODULE_DESCRIPTION("Broadcom iPROC PCIe common driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/pci/host/pcie-iproc.h b/drivers/pci/host/pcie-iproc.h
new file mode 100644
index 0000000..e28075e
--- /dev/null
+++ b/drivers/pci/host/pcie-iproc.h
@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 2014-2015 Broadcom Corporation
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation version 2.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef _PCIE_IPROC_H
+#define _PCIE_IPROC_H
+
+#define IPROC_PCIE_MAX_NUM_IRQS 6
+
+/**
+ * iProc PCIe device
+ * @dev: pointer to device data structure
+ * @base: PCIe host controller I/O register base
+ * @resources: linked list of all PCI resources
+ * @sysdata: Per PCI controller data
+ * @root_bus: pointer to root bus
+ * @phy: optional PHY device that controls the Serdes
+ * @irqs: interrupt IDs
+ */
+struct iproc_pcie {
+	struct device *dev;
+	void __iomem *base;
+	struct list_head *resources;
+	struct pci_sys_data sysdata;
+	struct pci_bus *root_bus;
+	struct phy *phy;
+	int irqs[IPROC_PCIE_MAX_NUM_IRQS];
+};
+
+int iproc_pcie_setup(struct iproc_pcie *pcie);
+int iproc_pcie_remove(struct iproc_pcie *pcie);
+
+#endif /* _PCIE_IPROC_H */
diff --git a/drivers/pci/host/pcie-rcar.c b/drivers/pci/host/pcie-rcar.c
index c57bd0a..c086210 100644
--- a/drivers/pci/host/pcie-rcar.c
+++ b/drivers/pci/host/pcie-rcar.c
@@ -64,8 +64,8 @@
 #define  LAR_ENABLE		(1 << 1)
 
 /* PCIe address reg & mask */
-#define PCIEPARL(x)		(0x03400 + ((x) * 0x20))
-#define PCIEPARH(x)		(0x03404 + ((x) * 0x20))
+#define PCIEPALR(x)		(0x03400 + ((x) * 0x20))
+#define PCIEPAUR(x)		(0x03404 + ((x) * 0x20))
 #define PCIEPAMR(x)		(0x03408 + ((x) * 0x20))
 #define PCIEPTCTLR(x)		(0x0340c + ((x) * 0x20))
 #define  PAR_ENABLE		(1 << 31)
@@ -341,8 +341,9 @@ static void rcar_pcie_setup_window(int win, struct rcar_pcie *pcie)
 	else
 		res_start = res->start;
 
-	rcar_pci_write_reg(pcie, upper_32_bits(res_start), PCIEPARH(win));
-	rcar_pci_write_reg(pcie, lower_32_bits(res_start), PCIEPARL(win));
+	rcar_pci_write_reg(pcie, upper_32_bits(res_start), PCIEPAUR(win));
+	rcar_pci_write_reg(pcie, lower_32_bits(res_start) & ~0x7F,
+			   PCIEPALR(win));
 
 	/* First resource is for IO */
 	mask = PAR_ENABLE;
@@ -501,7 +502,7 @@ static int rcar_pcie_hw_init(struct rcar_pcie *pcie)
 
 	/* Enable MSI */
 	if (IS_ENABLED(CONFIG_PCI_MSI))
-		rcar_pci_write_reg(pcie, 0x101f0000, PCIEMSITXR);
+		rcar_pci_write_reg(pcie, 0x801f0000, PCIEMSITXR);
 
 	/* Finish initialization - establish a PCI Express link */
 	rcar_pci_write_reg(pcie, CFINIT, PCIETCTLR);
diff --git a/drivers/pci/host/pcie-spear13xx.c b/drivers/pci/host/pcie-spear13xx.c
index 866465f..020d788 100644
--- a/drivers/pci/host/pcie-spear13xx.c
+++ b/drivers/pci/host/pcie-spear13xx.c
@@ -269,7 +269,7 @@ static struct pcie_host_ops spear13xx_pcie_host_ops = {
 	.host_init = spear13xx_pcie_host_init,
 };
 
-static int __init spear13xx_add_pcie_port(struct pcie_port *pp,
+static int spear13xx_add_pcie_port(struct pcie_port *pp,
 					 struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
@@ -299,7 +299,7 @@ static int __init spear13xx_add_pcie_port(struct pcie_port *pp,
 	return 0;
 }
 
-static int __init spear13xx_pcie_probe(struct platform_device *pdev)
+static int spear13xx_pcie_probe(struct platform_device *pdev)
 {
 	struct spear13xx_pcie *spear13xx_pcie;
 	struct pcie_port *pp;
@@ -370,7 +370,7 @@ static const struct of_device_id spear13xx_pcie_of_match[] = {
 };
 MODULE_DEVICE_TABLE(of, spear13xx_pcie_of_match);
 
-static struct platform_driver spear13xx_pcie_driver __initdata = {
+static struct platform_driver spear13xx_pcie_driver = {
 	.probe		= spear13xx_pcie_probe,
 	.driver = {
 		.name	= "spear-pcie",
diff --git a/drivers/pci/hotplug/cpci_hotplug_pci.c b/drivers/pci/hotplug/cpci_hotplug_pci.c
index 7d48eca..788db48 100644
--- a/drivers/pci/hotplug/cpci_hotplug_pci.c
+++ b/drivers/pci/hotplug/cpci_hotplug_pci.c
@@ -286,11 +286,12 @@ int cpci_configure_slot(struct slot *slot)
 	}
 	parent = slot->dev->bus;
 
-	list_for_each_entry(dev, &parent->devices, bus_list)
+	list_for_each_entry(dev, &parent->devices, bus_list) {
 		if (PCI_SLOT(dev->devfn) != PCI_SLOT(slot->devfn))
 			continue;
 		if (pci_is_bridge(dev))
 			pci_hp_add_bridge(dev);
+	}
 
 
 	pci_assign_unassigned_bridge_resources(parent->self);
diff --git a/drivers/pci/hotplug/ibmphp_core.c b/drivers/pci/hotplug/ibmphp_core.c
index 96c5c72..1530247 100644
--- a/drivers/pci/hotplug/ibmphp_core.c
+++ b/drivers/pci/hotplug/ibmphp_core.c
@@ -738,7 +738,7 @@ static void ibm_unconfigure_device(struct pci_func *func)
  */
 static u8 bus_structure_fixup(u8 busno)
 {
-	struct pci_bus *bus;
+	struct pci_bus *bus, *b;
 	struct pci_dev *dev;
 	u16 l;
 
@@ -765,7 +765,11 @@ static u8 bus_structure_fixup(u8 busno)
 					(l != 0x0000) && (l != 0xffff)) {
 			debug("%s - Inside bus_structure_fixup()\n",
 							__func__);
-			pci_scan_bus(busno, ibmphp_pci_bus->ops, NULL);
+			b = pci_scan_bus(busno, ibmphp_pci_bus->ops, NULL);
+			if (!b)
+				continue;
+
+			pci_bus_add_devices(b);
 			break;
 		}
 	}
diff --git a/drivers/pci/pci-acpi.c b/drivers/pci/pci-acpi.c
index 4890639..6f6f175 100644
--- a/drivers/pci/pci-acpi.c
+++ b/drivers/pci/pci-acpi.c
@@ -18,6 +18,15 @@
 #include <linux/pm_qos.h>
 #include "pci.h"
 
+/*
+ * The UUID is defined in the PCI Firmware Specification available here:
+ * https://www.pcisig.com/members/downloads/pcifw_r3_1_13Dec10.pdf
+ */
+const u8 pci_acpi_dsm_uuid[] = {
+	0xd0, 0x37, 0xc9, 0xe5, 0x53, 0x35, 0x7a, 0x4d,
+	0x91, 0x17, 0xea, 0x4d, 0x19, 0xc3, 0x43, 0x4d
+};
+
 phys_addr_t acpi_pci_root_get_mcfg_addr(acpi_handle handle)
 {
 	acpi_status status = AE_NOT_EXIST;
@@ -248,6 +257,9 @@ int pci_get_hp_params(struct pci_dev *dev, struct hotplug_params *hpp)
 	acpi_handle handle, phandle;
 	struct pci_bus *pbus;
 
+	if (acpi_pci_disabled)
+		return -ENODEV;
+
 	handle = NULL;
 	for (pbus = dev->bus; pbus; pbus = pbus->parent) {
 		handle = acpi_pci_get_bridge_handle(pbus);
@@ -528,11 +540,32 @@ static struct pci_platform_pm_ops acpi_pci_platform_pm = {
 
 void acpi_pci_add_bus(struct pci_bus *bus)
 {
+	union acpi_object *obj;
+	struct pci_host_bridge *bridge;
+
 	if (acpi_pci_disabled || !bus->bridge)
 		return;
 
 	acpi_pci_slot_enumerate(bus);
 	acpiphp_enumerate_slots(bus);
+
+	/*
+	 * For a host bridge, check its _DSM for function 8 and if
+	 * that is available, mark it in pci_host_bridge.
+	 */
+	if (!pci_is_root_bus(bus))
+		return;
+
+	obj = acpi_evaluate_dsm(ACPI_HANDLE(bus->bridge), pci_acpi_dsm_uuid, 3,
+				RESET_DELAY_DSM, NULL);
+	if (!obj)
+		return;
+
+	if (obj->type == ACPI_TYPE_INTEGER && obj->integer.value == 1) {
+		bridge = pci_find_host_bridge(bus);
+		bridge->ignore_reset_delay = 1;
+	}
+	ACPI_FREE(obj);
 }
 
 void acpi_pci_remove_bus(struct pci_bus *bus)
@@ -558,6 +591,57 @@ static struct acpi_device *acpi_pci_find_companion(struct device *dev)
 				      check_children);
 }
 
+/**
+ * pci_acpi_optimize_delay - optimize PCI D3 and D3cold delay from ACPI
+ * @pdev: the PCI device whose delay is to be updated
+ * @adev: the companion ACPI device of this PCI device
+ *
+ * Update the d3_delay and d3cold_delay of a PCI device from the ACPI _DSM
+ * control method of either the device itself or the PCI host bridge.
+ *
+ * Function 8, "Reset Delay," applies to the entire hierarchy below a PCI
+ * host bridge.  If it returns one, the OS may assume that all devices in
+ * the hierarchy have already completed power-on reset delays.
+ *
+ * Function 9, "Device Readiness Durations," applies only to the object
+ * where it is located.  It returns delay durations required after various
+ * events if the device requires less time than the spec requires.  Delays
+ * from this function take precedence over the Reset Delay function.
+ *
+ * These _DSM functions are defined by the draft ECN of January 28, 2014,
+ * titled "ACPI additions for FW latency optimizations."
+ */
+static void pci_acpi_optimize_delay(struct pci_dev *pdev,
+				    acpi_handle handle)
+{
+	struct pci_host_bridge *bridge = pci_find_host_bridge(pdev->bus);
+	int value;
+	union acpi_object *obj, *elements;
+
+	if (bridge->ignore_reset_delay)
+		pdev->d3cold_delay = 0;
+
+	obj = acpi_evaluate_dsm(handle, pci_acpi_dsm_uuid, 3,
+				FUNCTION_DELAY_DSM, NULL);
+	if (!obj)
+		return;
+
+	if (obj->type == ACPI_TYPE_PACKAGE && obj->package.count == 5) {
+		elements = obj->package.elements;
+		if (elements[0].type == ACPI_TYPE_INTEGER) {
+			value = (int)elements[0].integer.value / 1000;
+			if (value < PCI_PM_D3COLD_WAIT)
+				pdev->d3cold_delay = value;
+		}
+		if (elements[3].type == ACPI_TYPE_INTEGER) {
+			value = (int)elements[3].integer.value / 1000;
+			if (value < PCI_PM_D3_WAIT)
+				pdev->d3_delay = value;
+		}
+	}
+	ACPI_FREE(obj);
+}
+
 static void pci_acpi_setup(struct device *dev)
 {
 	struct pci_dev *pci_dev = to_pci_dev(dev);
@@ -566,6 +650,8 @@ static void pci_acpi_setup(struct device *dev)
 	if (!adev)
 		return;
 
+	pci_acpi_optimize_delay(pci_dev, adev->handle);
+
 	pci_acpi_add_pm_notifier(adev, pci_dev);
 	if (!adev->wakeup.flags.valid)
 		return;
diff --git a/drivers/pci/pci-label.c b/drivers/pci/pci-label.c
index 2ab1b47..024b5c1 100644
--- a/drivers/pci/pci-label.c
+++ b/drivers/pci/pci-label.c
@@ -31,8 +31,6 @@
 #include <linux/pci-acpi.h>
 #include "pci.h"
 
-#define	DEVICE_LABEL_DSM	0x07
-
 #ifdef CONFIG_DMI
 enum smbios_attr_enum {
 	SMBIOS_ATTR_NONE = 0,
@@ -148,11 +146,6 @@ static inline void pci_remove_smbiosname_file(struct pci_dev *pdev)
 #endif
 
 #ifdef CONFIG_ACPI
-static const char device_label_dsm_uuid[] = {
-	0xD0, 0x37, 0xC9, 0xE5, 0x53, 0x35, 0x7A, 0x4D,
-	0x91, 0x17, 0xEA, 0x4D, 0x19, 0xC3, 0x43, 0x4D
-};
-
 enum acpi_attr_enum {
 	ACPI_ATTR_LABEL_SHOW,
 	ACPI_ATTR_INDEX_SHOW,
@@ -179,7 +172,7 @@ static int dsm_get_label(struct device *dev, char *buf,
 	if (!handle)
 		return -1;
 
-	obj = acpi_evaluate_dsm(handle, device_label_dsm_uuid, 0x2,
+	obj = acpi_evaluate_dsm(handle, pci_acpi_dsm_uuid, 0x2,
 				DEVICE_LABEL_DSM, NULL);
 	if (!obj)
 		return -1;
@@ -219,7 +212,7 @@ static bool device_has_dsm(struct device *dev)
 	if (!handle)
 		return false;
 
-	return !!acpi_check_dsm(handle, device_label_dsm_uuid, 0x2,
+	return !!acpi_check_dsm(handle, pci_acpi_dsm_uuid, 0x2,
 				1 << DEVICE_LABEL_DSM);
 }
 
diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c
index aa012fb..312f23a 100644
--- a/drivers/pci/pci-sysfs.c
+++ b/drivers/pci/pci-sysfs.c
@@ -521,7 +521,8 @@ static ssize_t driver_override_store(struct device *dev,
 	struct pci_dev *pdev = to_pci_dev(dev);
 	char *driver_override, *old = pdev->driver_override, *cp;
 
-	if (count > PATH_MAX)
+	/* We need to keep extra room for a newline */
+	if (count >= (PAGE_SIZE - 1))
 		return -EINVAL;
 
 	driver_override = kstrndup(buf, count, GFP_KERNEL);
@@ -549,7 +550,7 @@ static ssize_t driver_override_show(struct device *dev,
 {
 	struct pci_dev *pdev = to_pci_dev(dev);
 
-	return sprintf(buf, "%s\n", pdev->driver_override);
+	return snprintf(buf, PAGE_SIZE, "%s\n", pdev->driver_override);
 }
 static DEVICE_ATTR_RW(driver_override);
 
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 81f06e8..acc4b6e 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -126,15 +126,16 @@ EXPORT_SYMBOL_GPL(pci_bus_max_busnr);
 #ifdef CONFIG_HAS_IOMEM
 void __iomem *pci_ioremap_bar(struct pci_dev *pdev, int bar)
 {
+	struct resource *res = &pdev->resource[bar];
+
 	/*
 	 * Make sure the BAR is actually a memory resource, not an IO resource
 	 */
-	if (!(pci_resource_flags(pdev, bar) & IORESOURCE_MEM)) {
-		WARN_ON(1);
+	if (res->flags & IORESOURCE_UNSET || !(res->flags & IORESOURCE_MEM)) {
+		dev_warn(&pdev->dev, "can't ioremap BAR %d: %pR\n", bar, res);
 		return NULL;
 	}
-	return ioremap_nocache(pci_resource_start(pdev, bar),
-				     pci_resource_len(pdev, bar));
+	return ioremap_nocache(res->start, resource_size(res));
 }
 EXPORT_SYMBOL_GPL(pci_ioremap_bar);
 #endif
@@ -145,19 +146,22 @@ static int __pci_find_next_cap_ttl(struct pci_bus *bus, unsigned int devfn,
 				   u8 pos, int cap, int *ttl)
 {
 	u8 id;
+	u16 ent;
+
+	pci_bus_read_config_byte(bus, devfn, pos, &pos);
 
 	while ((*ttl)--) {
-		pci_bus_read_config_byte(bus, devfn, pos, &pos);
 		if (pos < 0x40)
 			break;
 		pos &= ~3;
-		pci_bus_read_config_byte(bus, devfn, pos + PCI_CAP_LIST_ID,
-					 &id);
+		pci_bus_read_config_word(bus, devfn, pos, &ent);
+
+		id = ent & 0xff;
 		if (id == 0xff)
 			break;
 		if (id == cap)
 			return pos;
-		pos += PCI_CAP_LIST_NEXT;
+		pos = (ent >> 8);
 	}
 	return 0;
 }
@@ -2492,6 +2496,7 @@ u8 pci_common_swizzle(struct pci_dev *dev, u8 *pinp)
 	*pinp = pin;
 	return PCI_SLOT(dev->devfn);
 }
+EXPORT_SYMBOL_GPL(pci_common_swizzle);
 
 /**
  *	pci_release_region - Release a PCI bar
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index 4091f82..d72f849 100644
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -321,4 +321,6 @@ static inline int pci_dev_specific_reset(struct pci_dev *dev, int probe)
 }
 #endif
 
+struct pci_host_bridge *pci_find_host_bridge(struct pci_bus *bus);
+
 #endif /* DRIVERS_PCI_H */
diff --git a/drivers/pci/pcie/aer/aerdrv_errprint.c b/drivers/pci/pcie/aer/aerdrv_errprint.c
index c6849d9..167fe41 100644
--- a/drivers/pci/pcie/aer/aerdrv_errprint.c
+++ b/drivers/pci/pcie/aer/aerdrv_errprint.c
@@ -132,16 +132,8 @@ static const char *aer_agent_string[] = {
 static void __print_tlp_header(struct pci_dev *dev,
 			       struct aer_header_log_regs *t)
 {
-	unsigned char *tlp = (unsigned char *)&t;
-
-	dev_err(&dev->dev, "  TLP Header:"
-		" %02x%02x%02x%02x %02x%02x%02x%02x"
-		" %02x%02x%02x%02x %02x%02x%02x%02x\n",
-		*(tlp + 3), *(tlp + 2), *(tlp + 1), *tlp,
-		*(tlp + 7), *(tlp + 6), *(tlp + 5), *(tlp + 4),
-		*(tlp + 11), *(tlp + 10), *(tlp + 9),
-		*(tlp + 8), *(tlp + 15), *(tlp + 14),
-		*(tlp + 13), *(tlp + 12));
+	dev_err(&dev->dev, "  TLP Header: %08x %08x %08x %08x\n",
+		t->dw0, t->dw1, t->dw2, t->dw3);
 }
 
 static void __aer_print_error(struct pci_dev *dev,
diff --git a/drivers/pci/pcie/aspm.c b/drivers/pci/pcie/aspm.c
index 820740a..7d4fcdc 100644
--- a/drivers/pci/pcie/aspm.c
+++ b/drivers/pci/pcie/aspm.c
@@ -782,24 +782,6 @@ void pci_disable_link_state(struct pci_dev *pdev, int state)
 }
 EXPORT_SYMBOL(pci_disable_link_state);
 
-void pcie_clear_aspm(struct pci_bus *bus)
-{
-	struct pci_dev *child;
-
-	if (aspm_force)
-		return;
-
-	/*
-	 * Clear any ASPM setup that the firmware has carried out on this bus
-	 */
-	list_for_each_entry(child, &bus->devices, bus_list) {
-		__pci_disable_link_state(child, PCIE_LINK_STATE_L0S |
-					 PCIE_LINK_STATE_L1 |
-					 PCIE_LINK_STATE_CLKPM,
-					 false, true);
-	}
-}
-
 static int pcie_aspm_set_policy(const char *val, struct kernel_param *kp)
 {
 	int i;
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index 8d2f400..6675a7a 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -6,6 +6,7 @@
 #include <linux/delay.h>
 #include <linux/init.h>
 #include <linux/pci.h>
+#include <linux/of_pci.h>
 #include <linux/pci_hotplug.h>
 #include <linux/slab.h>
 #include <linux/module.h>
@@ -1520,6 +1521,7 @@ void pci_device_add(struct pci_dev *dev, struct pci_bus *bus)
 	dev->dev.dma_mask = &dev->dma_mask;
 	dev->dev.dma_parms = &dev->dma_parms;
 	dev->dev.coherent_dma_mask = 0xffffffffull;
+	of_pci_dma_configure(dev);
 
 	pci_set_dma_max_seg_size(dev, 65536);
 	pci_set_dma_seg_boundary(dev, 0xffffffff);
@@ -1993,6 +1995,7 @@ err_out:
 	kfree(b);
 	return NULL;
 }
+EXPORT_SYMBOL_GPL(pci_create_root_bus);
 
 int pci_bus_insert_busn_res(struct pci_bus *b, int bus, int bus_max)
 {
@@ -2087,7 +2090,6 @@ struct pci_bus *pci_scan_root_bus(struct device *parent, int bus,
 	if (!found)
 		pci_bus_update_busn_res_end(b, max);
 
-	pci_bus_add_devices(b);
 	return b;
 }
 EXPORT_SYMBOL(pci_scan_root_bus);
@@ -2123,7 +2125,6 @@ struct pci_bus *pci_scan_bus(int bus, struct pci_ops *ops,
 	b = pci_create_root_bus(NULL, bus, ops, sysdata, &resources);
 	if (b) {
 		pci_scan_child_bus(b);
-		pci_bus_add_devices(b);
 	} else {
 		pci_free_resource_list(&resources);
 	}
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 85f247e..c6dc1df 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -3182,7 +3182,7 @@ static void quirk_apple_wait_for_thunderbolt(struct pci_dev *dev)
 			|| nhi->subsystem_vendor != 0x2222
 			|| nhi->subsystem_device != 0x1111)
 		goto out;
-	dev_info(&dev->dev, "quirk: wating for thunderbolt to reestablish pci tunnels...\n");
+	dev_info(&dev->dev, "quirk: waiting for thunderbolt to reestablish PCI tunnels...\n");
 	device_pm_wait_for_dev(&dev->dev, &nhi->dev);
 out:
 	pci_dev_put(nhi);
@@ -3822,6 +3822,38 @@ static const struct pci_dev_acs_enabled {
 	{ PCI_VENDOR_ID_INTEL, 0x154F, pci_quirk_mf_endpoint_acs },
 	{ PCI_VENDOR_ID_INTEL, 0x1551, pci_quirk_mf_endpoint_acs },
 	{ PCI_VENDOR_ID_INTEL, 0x1558, pci_quirk_mf_endpoint_acs },
+	/* 82580 */
+	{ PCI_VENDOR_ID_INTEL, 0x1509, pci_quirk_mf_endpoint_acs },
+	{ PCI_VENDOR_ID_INTEL, 0x150E, pci_quirk_mf_endpoint_acs },
+	{ PCI_VENDOR_ID_INTEL, 0x150F, pci_quirk_mf_endpoint_acs },
+	{ PCI_VENDOR_ID_INTEL, 0x1510, pci_quirk_mf_endpoint_acs },
+	{ PCI_VENDOR_ID_INTEL, 0x1511, pci_quirk_mf_endpoint_acs },
+	{ PCI_VENDOR_ID_INTEL, 0x1516, pci_quirk_mf_endpoint_acs },
+	{ PCI_VENDOR_ID_INTEL, 0x1527, pci_quirk_mf_endpoint_acs },
+	/* 82576 */
+	{ PCI_VENDOR_ID_INTEL, 0x10C9, pci_quirk_mf_endpoint_acs },
+	{ PCI_VENDOR_ID_INTEL, 0x10E6, pci_quirk_mf_endpoint_acs },
+	{ PCI_VENDOR_ID_INTEL, 0x10E7, pci_quirk_mf_endpoint_acs },
+	{ PCI_VENDOR_ID_INTEL, 0x10E8, pci_quirk_mf_endpoint_acs },
+	{ PCI_VENDOR_ID_INTEL, 0x150A, pci_quirk_mf_endpoint_acs },
+	{ PCI_VENDOR_ID_INTEL, 0x150D, pci_quirk_mf_endpoint_acs },
+	{ PCI_VENDOR_ID_INTEL, 0x1518, pci_quirk_mf_endpoint_acs },
+	{ PCI_VENDOR_ID_INTEL, 0x1526, pci_quirk_mf_endpoint_acs },
+	/* 82575 */
+	{ PCI_VENDOR_ID_INTEL, 0x10A7, pci_quirk_mf_endpoint_acs },
+	{ PCI_VENDOR_ID_INTEL, 0x10A9, pci_quirk_mf_endpoint_acs },
+	{ PCI_VENDOR_ID_INTEL, 0x10D6, pci_quirk_mf_endpoint_acs },
+	/* I350 */
+	{ PCI_VENDOR_ID_INTEL, 0x1521, pci_quirk_mf_endpoint_acs },
+	{ PCI_VENDOR_ID_INTEL, 0x1522, pci_quirk_mf_endpoint_acs },
+	{ PCI_VENDOR_ID_INTEL, 0x1523, pci_quirk_mf_endpoint_acs },
+	{ PCI_VENDOR_ID_INTEL, 0x1524, pci_quirk_mf_endpoint_acs },
+	/* 82571 (Quads omitted due to non-ACS switch) */
+	{ PCI_VENDOR_ID_INTEL, 0x105E, pci_quirk_mf_endpoint_acs },
+	{ PCI_VENDOR_ID_INTEL, 0x105F, pci_quirk_mf_endpoint_acs },
+	{ PCI_VENDOR_ID_INTEL, 0x1060, pci_quirk_mf_endpoint_acs },
+	{ PCI_VENDOR_ID_INTEL, 0x10D9, pci_quirk_mf_endpoint_acs },
+	/* Intel PCH root ports */
 	{ PCI_VENDOR_ID_INTEL, PCI_ANY_ID, pci_quirk_intel_pch_acs },
 	{ 0x19a2, 0x710, pci_quirk_mf_endpoint_acs }, /* Emulex BE3-R */
 	{ 0x10df, 0x720, pci_quirk_mf_endpoint_acs }, /* Emulex Skyhawk-R */
diff --git a/drivers/pci/remove.c b/drivers/pci/remove.c
index 8bd76c9..8a280e9 100644
--- a/drivers/pci/remove.c
+++ b/drivers/pci/remove.c
@@ -139,6 +139,7 @@ void pci_stop_root_bus(struct pci_bus *bus)
 	/* stop the host bridge */
 	device_release_driver(&host_bridge->dev);
 }
+EXPORT_SYMBOL_GPL(pci_stop_root_bus);
 
 void pci_remove_root_bus(struct pci_bus *bus)
 {
@@ -158,3 +159,4 @@ void pci_remove_root_bus(struct pci_bus *bus)
 	/* remove the host bridge */
 	device_unregister(&host_bridge->dev);
 }
+EXPORT_SYMBOL_GPL(pci_remove_root_bus);
diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c
index e3e17f3..8169597 100644
--- a/drivers/pci/setup-bus.c
+++ b/drivers/pci/setup-bus.c
@@ -1750,3 +1750,4 @@ void pci_assign_unassigned_bus_resources(struct pci_bus *bus)
 	__pci_bus_assign_resources(bus, &add_list, NULL);
 	BUG_ON(!list_empty(&add_list));
 }
+EXPORT_SYMBOL_GPL(pci_assign_unassigned_bus_resources);
diff --git a/drivers/pci/setup-irq.c b/drivers/pci/setup-irq.c
index 4e2d595..95c225b 100644
--- a/drivers/pci/setup-irq.c
+++ b/drivers/pci/setup-irq.c
@@ -65,3 +65,4 @@ void pci_fixup_irqs(u8 (*swizzle)(struct pci_dev *, u8 *),
 	for_each_pci_dev(dev)
 		pdev_fixup_irq(dev, swizzle, map_irq);
 }
+EXPORT_SYMBOL_GPL(pci_fixup_irqs);
diff --git a/drivers/pci/setup-res.c b/drivers/pci/setup-res.c
index b7c3a5e..232f925 100644
--- a/drivers/pci/setup-res.c
+++ b/drivers/pci/setup-res.c
@@ -120,6 +120,7 @@ int pci_claim_resource(struct pci_dev *dev, int resource)
 	if (!root) {
 		dev_info(&dev->dev, "can't claim BAR %d %pR: no compatible bridge window\n",
 			 resource, res);
+		res->flags |= IORESOURCE_UNSET;
 		return -EINVAL;
 	}
 
@@ -127,6 +128,7 @@ int pci_claim_resource(struct pci_dev *dev, int resource)
 	if (conflict) {
 		dev_info(&dev->dev, "can't claim BAR %d %pR: address conflict with %s %pR\n",
 			 resource, res, conflict->name, conflict);
+		res->flags |= IORESOURCE_UNSET;
 		return -EBUSY;
 	}
 
diff --git a/drivers/pcmcia/Kconfig b/drivers/pcmcia/Kconfig
index 3bb4925..45f67c6 100644
--- a/drivers/pcmcia/Kconfig
+++ b/drivers/pcmcia/Kconfig
@@ -69,8 +69,7 @@ config YENTA
 	tristate "CardBus yenta-compatible bridge support"
 	depends on PCI
 	select CARDBUS if !EXPERT
-	select PCCARD_NONSTATIC if PCMCIA != n && ISA
-	select PCCARD_PCI if PCMCIA !=n && !ISA
+	select PCCARD_NONSTATIC if PCMCIA != n
 	---help---
 	  This option enables support for CardBus host bridges.  Virtually
 	  all modern PCMCIA bridges are CardBus compatible.  A "bridge" is
@@ -110,8 +109,7 @@ config YENTA_TOSHIBA
 config PD6729
 	tristate "Cirrus PD6729 compatible bridge support"
 	depends on PCMCIA && PCI
-	select PCCARD_NONSTATIC if PCMCIA != n && ISA
-	select PCCARD_PCI if PCMCIA !=n && !ISA
+	select PCCARD_NONSTATIC
 	help
 	  This provides support for the Cirrus PD6729 PCI-to-PCMCIA bridge
 	  device, found in some older laptops and PCMCIA card readers.
@@ -119,8 +117,7 @@ config PD6729
 config I82092
 	tristate "i82092 compatible bridge support"
 	depends on PCMCIA && PCI
-	select PCCARD_NONSTATIC if PCMCIA != n && ISA
-	select PCCARD_PCI if PCMCIA !=n && !ISA
+	select PCCARD_NONSTATIC
 	help
 	  This provides support for the Intel I82092AA PCI-to-PCMCIA bridge device,
 	  found in some older laptops and more commonly in evaluation boards for the
@@ -291,9 +288,6 @@ config ELECTRA_CF
 	  Say Y here to support the CompactFlash controller on the
 	  PA Semi Electra eval board.
 
-config PCCARD_PCI
-	bool
-
 config PCCARD_NONSTATIC
 	bool
 
diff --git a/drivers/pcmcia/Makefile b/drivers/pcmcia/Makefile
index f1a7ca0..27e94b3 100644
--- a/drivers/pcmcia/Makefile
+++ b/drivers/pcmcia/Makefile
@@ -12,7 +12,6 @@ obj-$(CONFIG_PCMCIA)				+= pcmcia.o
 pcmcia_rsrc-y					+= rsrc_mgr.o
 pcmcia_rsrc-$(CONFIG_PCCARD_NONSTATIC)		+= rsrc_nonstatic.o
 pcmcia_rsrc-$(CONFIG_PCCARD_IODYN)		+= rsrc_iodyn.o
-pcmcia_rsrc-$(CONFIG_PCCARD_PCI)		+= rsrc_pci.o
 obj-$(CONFIG_PCCARD)				+= pcmcia_rsrc.o
 
 
diff --git a/drivers/pcmcia/rsrc_pci.c b/drivers/pcmcia/rsrc_pci.c
deleted file mode 100644
index 1f67b3b..0000000
--- a/drivers/pcmcia/rsrc_pci.c
+++ /dev/null
@@ -1,173 +0,0 @@
-#include <linux/slab.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/pci.h>
-
-#include <pcmcia/ss.h>
-#include <pcmcia/cistpl.h>
-#include "cs_internal.h"
-
-
-struct pcmcia_align_data {
-	unsigned long	mask;
-	unsigned long	offset;
-};
-
-static resource_size_t pcmcia_align(void *align_data,
-				const struct resource *res,
-				resource_size_t size, resource_size_t align)
-{
-	struct pcmcia_align_data *data = align_data;
-	resource_size_t start;
-
-	start = (res->start & ~data->mask) + data->offset;
-	if (start < res->start)
-		start += data->mask + 1;
-	return start;
-}
-
-static struct resource *find_io_region(struct pcmcia_socket *s,
-					unsigned long base, int num,
-					unsigned long align)
-{
-	struct resource *res = pcmcia_make_resource(0, num, IORESOURCE_IO,
-						dev_name(&s->dev));
-	struct pcmcia_align_data data;
-	int ret;
-
-	data.mask = align - 1;
-	data.offset = base & data.mask;
-
-	ret = pci_bus_alloc_resource(s->cb_dev->bus, res, num, 1,
-					     base, 0, pcmcia_align, &data);
-	if (ret != 0) {
-		kfree(res);
-		res = NULL;
-	}
-	return res;
-}
-
-static int res_pci_find_io(struct pcmcia_socket *s, unsigned int attr,
-			unsigned int *base, unsigned int num,
-			unsigned int align, struct resource **parent)
-{
-	int i, ret = 0;
-
-	/* Check for an already-allocated window that must conflict with
-	 * what was asked for.  It is a hack because it does not catch all
-	 * potential conflicts, just the most obvious ones.
-	 */
-	for (i = 0; i < MAX_IO_WIN; i++) {
-		if (!s->io[i].res)
-			continue;
-
-		if (!*base)
-			continue;
-
-		if ((s->io[i].res->start & (align-1)) == *base)
-			return -EBUSY;
-	}
-
-	for (i = 0; i < MAX_IO_WIN; i++) {
-		struct resource *res = s->io[i].res;
-		unsigned int try;
-
-		if (res && (res->flags & IORESOURCE_BITS) !=
-			(attr & IORESOURCE_BITS))
-			continue;
-
-		if (!res) {
-			if (align == 0)
-				align = 0x10000;
-
-			res = s->io[i].res = find_io_region(s, *base, num,
-								align);
-			if (!res)
-				return -EINVAL;
-
-			*base = res->start;
-			s->io[i].res->flags =
-				((res->flags & ~IORESOURCE_BITS) |
-					(attr & IORESOURCE_BITS));
-			s->io[i].InUse = num;
-			*parent = res;
-			return 0;
-		}
-
-		/* Try to extend top of window */
-		try = res->end + 1;
-		if ((*base == 0) || (*base == try)) {
-			ret = adjust_resource(s->io[i].res, res->start,
-					      resource_size(res) + num);
-			if (ret)
-				continue;
-			*base = try;
-			s->io[i].InUse += num;
-			*parent = res;
-			return 0;
-		}
-
-		/* Try to extend bottom of window */
-		try = res->start - num;
-		if ((*base == 0) || (*base == try)) {
-			ret = adjust_resource(s->io[i].res,
-					      res->start - num,
-					      resource_size(res) + num);
-			if (ret)
-				continue;
-			*base = try;
-			s->io[i].InUse += num;
-			*parent = res;
-			return 0;
-		}
-	}
-	return -EINVAL;
-}
-
-static struct resource *res_pci_find_mem(u_long base, u_long num,
-		u_long align, int low, struct pcmcia_socket *s)
-{
-	struct resource *res = pcmcia_make_resource(0, num, IORESOURCE_MEM,
-						dev_name(&s->dev));
-	struct pcmcia_align_data data;
-	unsigned long min;
-	int ret;
-
-	if (align < 0x20000)
-		align = 0x20000;
-	data.mask = align - 1;
-	data.offset = base & data.mask;
-
-	min = 0;
-	if (!low)
-		min = 0x100000UL;
-
-	ret = pci_bus_alloc_resource(s->cb_dev->bus,
-			res, num, 1, min, 0,
-			pcmcia_align, &data);
-
-	if (ret != 0) {
-		kfree(res);
-		res = NULL;
-	}
-	return res;
-}
-
-
-static int res_pci_init(struct pcmcia_socket *s)
-{
-	if (!s->cb_dev || !(s->features & SS_CAP_PAGE_REGS)) {
-		dev_err(&s->dev, "not supported by res_pci\n");
-		return -EOPNOTSUPP;
-	}
-	return 0;
-}
-
-struct pccard_resource_ops pccard_nonstatic_ops = {
-	.validate_mem = NULL,
-	.find_io = res_pci_find_io,
-	.find_mem = res_pci_find_mem,
-	.init = res_pci_init,
-	.exit = NULL,
-};
-EXPORT_SYMBOL(pccard_nonstatic_ops);
diff --git a/drivers/phy/Kconfig b/drivers/phy/Kconfig
index 2962de2..a53bd5b 100644
--- a/drivers/phy/Kconfig
+++ b/drivers/phy/Kconfig
@@ -35,6 +35,13 @@ config ARMADA375_USBCLUSTER_PHY
 	depends on OF
 	select GENERIC_PHY
 
+config PHY_DM816X_USB
+	tristate "TI dm816x USB PHY driver"
+	depends on ARCH_OMAP2PLUS
+	select GENERIC_PHY
+	help
+	  Enable this for dm816x USB to work.
+
 config PHY_EXYNOS_MIPI_VIDEO
 	tristate "S5P/EXYNOS SoC series MIPI CSI-2/DSI PHY driver"
 	depends on HAS_IOMEM
@@ -174,6 +181,17 @@ config PHY_SUN4I_USB
 	  This driver controls the entire USB PHY block, both the USB OTG
 	  parts, as well as the 2 regular USB 2 host PHYs.
 
+config PHY_SUN9I_USB
+	tristate "Allwinner sun9i SoC USB PHY driver"
+	depends on ARCH_SUNXI && HAS_IOMEM && OF
+	depends on RESET_CONTROLLER
+	select GENERIC_PHY
+	help
+	  Enable this to support the transceiver that is part of Allwinner
+	  sun9i SoCs.
+
+	  This driver controls each individual USB 2 host PHY.
+
 config PHY_SAMSUNG_USB2
 	tristate "Samsung USB 2.0 PHY driver"
 	depends on HAS_IOMEM
diff --git a/drivers/phy/Makefile b/drivers/phy/Makefile
index f080e1b..f126251 100644
--- a/drivers/phy/Makefile
+++ b/drivers/phy/Makefile
@@ -5,6 +5,7 @@
 obj-$(CONFIG_GENERIC_PHY)		+= phy-core.o
 obj-$(CONFIG_PHY_BERLIN_USB)		+= phy-berlin-usb.o
 obj-$(CONFIG_PHY_BERLIN_SATA)		+= phy-berlin-sata.o
+obj-$(CONFIG_PHY_DM816X_USB)		+= phy-dm816x-usb.o
 obj-$(CONFIG_ARMADA375_USBCLUSTER_PHY)	+= phy-armada375-usb2.o
 obj-$(CONFIG_BCM_KONA_USB2_PHY)		+= phy-bcm-kona-usb2.o
 obj-$(CONFIG_PHY_EXYNOS_DP_VIDEO)	+= phy-exynos-dp-video.o
@@ -20,6 +21,7 @@ obj-$(CONFIG_TWL4030_USB)		+= phy-twl4030-usb.o
 obj-$(CONFIG_PHY_EXYNOS5250_SATA)	+= phy-exynos5250-sata.o
 obj-$(CONFIG_PHY_HIX5HD2_SATA)		+= phy-hix5hd2-sata.o
 obj-$(CONFIG_PHY_SUN4I_USB)		+= phy-sun4i-usb.o
+obj-$(CONFIG_PHY_SUN9I_USB)		+= phy-sun9i-usb.o
 obj-$(CONFIG_PHY_SAMSUNG_USB2)		+= phy-exynos-usb2.o
 phy-exynos-usb2-y			+= phy-samsung-usb2.o
 phy-exynos-usb2-$(CONFIG_PHY_EXYNOS4210_USB2)	+= phy-exynos4210-usb2.o
diff --git a/drivers/phy/phy-armada375-usb2.c b/drivers/phy/phy-armada375-usb2.c
index 7c99ca2..8ccc395 100644
--- a/drivers/phy/phy-armada375-usb2.c
+++ b/drivers/phy/phy-armada375-usb2.c
@@ -37,7 +37,7 @@ static int armada375_usb_phy_init(struct phy *phy)
 	struct armada375_cluster_phy *cluster_phy;
 	u32 reg;
 
-	cluster_phy = dev_get_drvdata(phy->dev.parent);
+	cluster_phy = phy_get_drvdata(phy);
 	if (!cluster_phy)
 		return -ENODEV;
 
@@ -131,6 +131,7 @@ static int armada375_usb_phy_probe(struct platform_device *pdev)
 	cluster_phy->reg = usb_cluster_base;
 
 	dev_set_drvdata(dev, cluster_phy);
+	phy_set_drvdata(phy, cluster_phy);
 
 	phy_provider = devm_of_phy_provider_register(&pdev->dev,
 						     armada375_usb_phy_xlate);
diff --git a/drivers/phy/phy-berlin-sata.c b/drivers/phy/phy-berlin-sata.c
index 099eee8..6f3e06d 100644
--- a/drivers/phy/phy-berlin-sata.c
+++ b/drivers/phy/phy-berlin-sata.c
@@ -218,7 +218,7 @@ static int phy_berlin_sata_probe(struct platform_device *pdev)
 	if (priv->nphys == 0)
 		return -ENODEV;
 
-	priv->phys = devm_kzalloc(dev, priv->nphys * sizeof(*priv->phys),
+	priv->phys = devm_kcalloc(dev, priv->nphys, sizeof(*priv->phys),
 				  GFP_KERNEL);
 	if (!priv->phys)
 		return -ENOMEM;
diff --git a/drivers/phy/phy-berlin-usb.c b/drivers/phy/phy-berlin-usb.c
index c8a8d53..c6fc95b 100644
--- a/drivers/phy/phy-berlin-usb.c
+++ b/drivers/phy/phy-berlin-usb.c
@@ -103,9 +103,6 @@
 #define MODE_TEST_EN		BIT(11)
 #define ANA_TEST_DC_CTRL(x)	((x) << 12)
 
-#define to_phy_berlin_usb_priv(p)	\
-	container_of((p), struct phy_berlin_usb_priv, phy)
-
 static const u32 phy_berlin_pll_dividers[] = {
 	/* Berlin 2 */
 	CLK_REF_DIV(0xc) | FEEDBACK_CLK_DIV(0x54),
@@ -115,14 +112,13 @@ static const u32 phy_berlin_pll_dividers[] = {
 
 struct phy_berlin_usb_priv {
 	void __iomem		*base;
-	struct phy		*phy;
 	struct reset_control	*rst_ctrl;
 	u32			pll_divider;
 };
 
 static int phy_berlin_usb_power_on(struct phy *phy)
 {
-	struct phy_berlin_usb_priv *priv = dev_get_drvdata(phy->dev.parent);
+	struct phy_berlin_usb_priv *priv = phy_get_drvdata(phy);
 
 	reset_control_reset(priv->rst_ctrl);
 
@@ -175,6 +171,7 @@ static int phy_berlin_usb_probe(struct platform_device *pdev)
 		of_match_device(phy_berlin_sata_of_match, &pdev->dev);
 	struct phy_berlin_usb_priv *priv;
 	struct resource *res;
+	struct phy *phy;
 	struct phy_provider *phy_provider;
 
 	priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
@@ -192,20 +189,18 @@ static int phy_berlin_usb_probe(struct platform_device *pdev)
 
 	priv->pll_divider = *((u32 *)match->data);
 
-	priv->phy = devm_phy_create(&pdev->dev, NULL, &phy_berlin_usb_ops);
-	if (IS_ERR(priv->phy)) {
+	phy = devm_phy_create(&pdev->dev, NULL, &phy_berlin_usb_ops);
+	if (IS_ERR(phy)) {
 		dev_err(&pdev->dev, "failed to create PHY\n");
-		return PTR_ERR(priv->phy);
+		return PTR_ERR(phy);
 	}
 
 	platform_set_drvdata(pdev, priv);
+	phy_set_drvdata(phy, priv);
 
 	phy_provider =
 		devm_of_phy_provider_register(&pdev->dev, of_phy_simple_xlate);
-	if (IS_ERR(phy_provider))
-		return PTR_ERR(phy_provider);
-
-	return 0;
+	return PTR_ERR_OR_ZERO(phy_provider);
 }
 
 static struct platform_driver phy_berlin_usb_driver = {
diff --git a/drivers/phy/phy-core.c b/drivers/phy/phy-core.c
index a12d353..3791838 100644
--- a/drivers/phy/phy-core.c
+++ b/drivers/phy/phy-core.c
@@ -52,7 +52,9 @@ static void devm_phy_consume(struct device *dev, void *res)
 
 static int devm_phy_match(struct device *dev, void *res, void *match_data)
 {
-	return res == match_data;
+	struct phy **phy = res;
+
+	return *phy == match_data;
 }
 
 /**
@@ -223,6 +225,7 @@ int phy_init(struct phy *phy)
 	ret = phy_pm_runtime_get_sync(phy);
 	if (ret < 0 && ret != -ENOTSUPP)
 		return ret;
+	ret = 0; /* Override possible ret == -ENOTSUPP */
 
 	mutex_lock(&phy->mutex);
 	if (phy->init_count == 0 && phy->ops->init) {
@@ -231,8 +234,6 @@ int phy_init(struct phy *phy)
 			dev_err(&phy->dev, "phy init failed --> %d\n", ret);
 			goto out;
 		}
-	} else {
-		ret = 0; /* Override possible ret == -ENOTSUPP */
 	}
 	++phy->init_count;
 
@@ -253,6 +254,7 @@ int phy_exit(struct phy *phy)
 	ret = phy_pm_runtime_get_sync(phy);
 	if (ret < 0 && ret != -ENOTSUPP)
 		return ret;
+	ret = 0; /* Override possible ret == -ENOTSUPP */
 
 	mutex_lock(&phy->mutex);
 	if (phy->init_count == 1 && phy->ops->exit) {
@@ -287,6 +289,7 @@ int phy_power_on(struct phy *phy)
 	ret = phy_pm_runtime_get_sync(phy);
 	if (ret < 0 && ret != -ENOTSUPP)
 		return ret;
+	ret = 0; /* Override possible ret == -ENOTSUPP */
 
 	mutex_lock(&phy->mutex);
 	if (phy->power_count == 0 && phy->ops->power_on) {
@@ -295,8 +298,6 @@ int phy_power_on(struct phy *phy)
 			dev_err(&phy->dev, "phy poweron failed --> %d\n", ret);
 			goto out;
 		}
-	} else {
-		ret = 0; /* Override possible ret == -ENOTSUPP */
 	}
 	++phy->power_count;
 	mutex_unlock(&phy->mutex);
diff --git a/drivers/phy/phy-dm816x-usb.c b/drivers/phy/phy-dm816x-usb.c
new file mode 100644
index 0000000..7b42555
--- /dev/null
+++ b/drivers/phy/phy-dm816x-usb.c
@@ -0,0 +1,290 @@
+/*
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation version 2.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+
+#include <linux/slab.h>
+#include <linux/of.h>
+#include <linux/io.h>
+#include <linux/usb/phy_companion.h>
+#include <linux/clk.h>
+#include <linux/err.h>
+#include <linux/pm_runtime.h>
+#include <linux/delay.h>
+#include <linux/phy/phy.h>
+#include <linux/of_platform.h>
+
+#include <linux/mfd/syscon.h>
+
+/*
+ * TRM has two sets of USB_CTRL registers.. The correct register bits
+ * are in TRM section 24.9.8.2 USB_CTRL Register. The TRM documents the
+ * phy as being SR70LX Synopsys USB 2.0 OTG nanoPHY. It also seems at
+ * least dm816x rev c ignores writes to USB_CTRL register, but the TI
+ * kernel is writing to those so it's possible that later revisions
+ * have worknig USB_CTRL register.
+ *
+ * Also note that At least USB_CTRL register seems to be dm816x specific
+ * according to the TRM. It's possible that USBPHY_CTRL is more generic,
+ * but that would have to be checked against the SR70LX documentation
+ * which does not seem to be publicly available.
+ *
+ * Finally, the phy on dm814x and am335x is different from dm816x.
+ */
+#define DM816X_USB_CTRL_PHYCLKSRC	BIT(8)	/* 1 = PLL ref clock */
+#define DM816X_USB_CTRL_PHYSLEEP1	BIT(1)	/* Enable the first phy */
+#define DM816X_USB_CTRL_PHYSLEEP0	BIT(0)	/* Enable the second phy */
+
+#define DM816X_USBPHY_CTRL_TXRISETUNE	1
+#define DM816X_USBPHY_CTRL_TXVREFTUNE	0xc
+#define DM816X_USBPHY_CTRL_TXPREEMTUNE	0x2
+
+struct dm816x_usb_phy {
+	struct regmap *syscon;
+	struct device *dev;
+	unsigned int instance;
+	struct clk *refclk;
+	struct usb_phy phy;
+	unsigned int usb_ctrl;		/* Shared between phy0 and phy1 */
+	unsigned int usbphy_ctrl;
+};
+
+static int dm816x_usb_phy_set_host(struct usb_otg *otg, struct usb_bus *host)
+{
+	otg->host = host;
+	if (!host)
+		otg->state = OTG_STATE_UNDEFINED;
+
+	return 0;
+}
+
+static int dm816x_usb_phy_set_peripheral(struct usb_otg *otg,
+					 struct usb_gadget *gadget)
+{
+	otg->gadget = gadget;
+	if (!gadget)
+		otg->state = OTG_STATE_UNDEFINED;
+
+	return 0;
+}
+
+static int dm816x_usb_phy_init(struct phy *x)
+{
+	struct dm816x_usb_phy *phy = phy_get_drvdata(x);
+	unsigned int val;
+	int error;
+
+	if (clk_get_rate(phy->refclk) != 24000000)
+		dev_warn(phy->dev, "nonstandard phy refclk\n");
+
+	/* Set PLL ref clock and put phys to sleep */
+	error = regmap_update_bits(phy->syscon, phy->usb_ctrl,
+				   DM816X_USB_CTRL_PHYCLKSRC |
+				   DM816X_USB_CTRL_PHYSLEEP1 |
+				   DM816X_USB_CTRL_PHYSLEEP0,
+				   0);
+	regmap_read(phy->syscon, phy->usb_ctrl, &val);
+	if ((val & 3) != 0)
+		dev_info(phy->dev,
+			 "Working dm816x USB_CTRL! (0x%08x)\n",
+			 val);
+
+	/*
+	 * TI kernel sets these values for "symmetrical eye diagram and
+	 * better signal quality" so let's assume somebody checked the
+	 * values with a scope and set them here too.
+	 */
+	regmap_read(phy->syscon, phy->usbphy_ctrl, &val);
+	val |= DM816X_USBPHY_CTRL_TXRISETUNE |
+		DM816X_USBPHY_CTRL_TXVREFTUNE |
+		DM816X_USBPHY_CTRL_TXPREEMTUNE;
+	regmap_write(phy->syscon, phy->usbphy_ctrl, val);
+
+	return 0;
+}
+
+static struct phy_ops ops = {
+	.init		= dm816x_usb_phy_init,
+	.owner		= THIS_MODULE,
+};
+
+static int dm816x_usb_phy_runtime_suspend(struct device *dev)
+{
+	struct dm816x_usb_phy *phy = dev_get_drvdata(dev);
+	unsigned int mask, val;
+	int error = 0;
+
+	mask = BIT(phy->instance);
+	val = ~BIT(phy->instance);
+	error = regmap_update_bits(phy->syscon, phy->usb_ctrl,
+				   mask, val);
+	if (error)
+		dev_err(phy->dev, "phy%i failed to power off\n",
+			phy->instance);
+	clk_disable(phy->refclk);
+
+	return 0;
+}
+
+static int dm816x_usb_phy_runtime_resume(struct device *dev)
+{
+	struct dm816x_usb_phy *phy = dev_get_drvdata(dev);
+	unsigned int mask, val;
+	int error;
+
+	error = clk_enable(phy->refclk);
+	if (error)
+		return error;
+
+	/*
+	 * Note that at least dm816x rev c does not seem to do
+	 * anything with the USB_CTRL register. But let's follow
+	 * what the TI tree is doing in case later revisions use
+	 * USB_CTRL.
+	 */
+	mask = BIT(phy->instance);
+	val = BIT(phy->instance);
+	error = regmap_update_bits(phy->syscon, phy->usb_ctrl,
+				   mask, val);
+	if (error) {
+		dev_err(phy->dev, "phy%i failed to power on\n",
+			phy->instance);
+		clk_disable(phy->refclk);
+		return error;
+	}
+
+	return 0;
+}
+
+static UNIVERSAL_DEV_PM_OPS(dm816x_usb_phy_pm_ops,
+			    dm816x_usb_phy_runtime_suspend,
+			    dm816x_usb_phy_runtime_resume,
+			    NULL);
+
+#ifdef CONFIG_OF
+static const struct of_device_id dm816x_usb_phy_id_table[] = {
+	{
+		.compatible = "ti,dm8168-usb-phy",
+	},
+	{},
+};
+MODULE_DEVICE_TABLE(of, dm816x_usb_phy_id_table);
+#endif
+
+static int dm816x_usb_phy_probe(struct platform_device *pdev)
+{
+	struct dm816x_usb_phy *phy;
+	struct resource *res;
+	struct phy *generic_phy;
+	struct phy_provider *phy_provider;
+	struct usb_otg *otg;
+	const struct of_device_id *of_id;
+	const struct usb_phy_data *phy_data;
+	int error;
+
+	of_id = of_match_device(of_match_ptr(dm816x_usb_phy_id_table),
+				&pdev->dev);
+	if (!of_id)
+		return -EINVAL;
+
+	phy = devm_kzalloc(&pdev->dev, sizeof(*phy), GFP_KERNEL);
+	if (!phy)
+		return -ENOMEM;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res)
+		return -ENOENT;
+
+	phy->syscon = syscon_regmap_lookup_by_phandle(pdev->dev.of_node,
+						      "syscon");
+	if (IS_ERR(phy->syscon))
+		return PTR_ERR(phy->syscon);
+
+	/*
+	 * According to sprs614e.pdf, the first usb_ctrl is shared and
+	 * the second instance for usb_ctrl is reserved.. Also the
+	 * register bits are different from earlier TRMs.
+	 */
+	phy->usb_ctrl = 0x20;
+	phy->usbphy_ctrl = (res->start & 0xff) + 4;
+	if (phy->usbphy_ctrl == 0x2c)
+		phy->instance = 1;
+
+	phy_data = of_id->data;
+
+	otg = devm_kzalloc(&pdev->dev, sizeof(*otg), GFP_KERNEL);
+	if (!otg)
+		return -ENOMEM;
+
+	phy->dev = &pdev->dev;
+	phy->phy.dev = phy->dev;
+	phy->phy.label = "dm8168_usb_phy";
+	phy->phy.otg = otg;
+	phy->phy.type = USB_PHY_TYPE_USB2;
+	otg->set_host = dm816x_usb_phy_set_host;
+	otg->set_peripheral = dm816x_usb_phy_set_peripheral;
+	otg->usb_phy = &phy->phy;
+
+	platform_set_drvdata(pdev, phy);
+
+	phy->refclk = devm_clk_get(phy->dev, "refclk");
+	if (IS_ERR(phy->refclk))
+		return PTR_ERR(phy->refclk);
+	error = clk_prepare(phy->refclk);
+	if (error)
+		return error;
+
+	pm_runtime_enable(phy->dev);
+	generic_phy = devm_phy_create(phy->dev, NULL, &ops);
+	if (IS_ERR(generic_phy))
+		return PTR_ERR(generic_phy);
+
+	phy_set_drvdata(generic_phy, phy);
+
+	phy_provider = devm_of_phy_provider_register(phy->dev,
+						     of_phy_simple_xlate);
+	if (IS_ERR(phy_provider))
+		return PTR_ERR(phy_provider);
+
+	usb_add_phy_dev(&phy->phy);
+
+	return 0;
+}
+
+static int dm816x_usb_phy_remove(struct platform_device *pdev)
+{
+	struct dm816x_usb_phy *phy = platform_get_drvdata(pdev);
+
+	usb_remove_phy(&phy->phy);
+	pm_runtime_disable(phy->dev);
+	clk_unprepare(phy->refclk);
+
+	return 0;
+}
+
+static struct platform_driver dm816x_usb_phy_driver = {
+	.probe		= dm816x_usb_phy_probe,
+	.remove		= dm816x_usb_phy_remove,
+	.driver		= {
+		.name	= "dm816x-usb-phy",
+		.pm	= &dm816x_usb_phy_pm_ops,
+		.of_match_table = of_match_ptr(dm816x_usb_phy_id_table),
+	},
+};
+
+module_platform_driver(dm816x_usb_phy_driver);
+
+MODULE_ALIAS("platform:dm816x_usb");
+MODULE_AUTHOR("Tony Lindgren <tony@atomide.com>");
+MODULE_DESCRIPTION("dm816x usb phy driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/phy/phy-exynos-dp-video.c b/drivers/phy/phy-exynos-dp-video.c
index f86cbe6..179cbf9 100644
--- a/drivers/phy/phy-exynos-dp-video.c
+++ b/drivers/phy/phy-exynos-dp-video.c
@@ -30,28 +30,13 @@ struct exynos_dp_video_phy {
 	const struct exynos_dp_video_phy_drvdata *drvdata;
 };
 
-static void exynos_dp_video_phy_pwr_isol(struct exynos_dp_video_phy *state,
-							unsigned int on)
-{
-	unsigned int val;
-
-	if (IS_ERR(state->regs))
-		return;
-
-	val = on ? 0 : EXYNOS5_PHY_ENABLE;
-
-	regmap_update_bits(state->regs, state->drvdata->phy_ctrl_offset,
-			   EXYNOS5_PHY_ENABLE, val);
-}
-
 static int exynos_dp_video_phy_power_on(struct phy *phy)
 {
 	struct exynos_dp_video_phy *state = phy_get_drvdata(phy);
 
 	/* Disable power isolation on DP-PHY */
-	exynos_dp_video_phy_pwr_isol(state, 0);
-
-	return 0;
+	return regmap_update_bits(state->regs, state->drvdata->phy_ctrl_offset,
+				  EXYNOS5_PHY_ENABLE, EXYNOS5_PHY_ENABLE);
 }
 
 static int exynos_dp_video_phy_power_off(struct phy *phy)
@@ -59,9 +44,8 @@ static int exynos_dp_video_phy_power_off(struct phy *phy)
 	struct exynos_dp_video_phy *state = phy_get_drvdata(phy);
 
 	/* Enable power isolation on DP-PHY */
-	exynos_dp_video_phy_pwr_isol(state, 1);
-
-	return 0;
+	return regmap_update_bits(state->regs, state->drvdata->phy_ctrl_offset,
+				  EXYNOS5_PHY_ENABLE, 0);
 }
 
 static struct phy_ops exynos_dp_video_phy_ops = {
diff --git a/drivers/phy/phy-exynos-mipi-video.c b/drivers/phy/phy-exynos-mipi-video.c
index f017b2f..df7519a 100644
--- a/drivers/phy/phy-exynos-mipi-video.c
+++ b/drivers/phy/phy-exynos-mipi-video.c
@@ -43,7 +43,6 @@ struct exynos_mipi_video_phy {
 	} phys[EXYNOS_MIPI_PHYS_NUM];
 	spinlock_t slock;
 	void __iomem *regs;
-	struct mutex mutex;
 	struct regmap *regmap;
 };
 
@@ -59,8 +58,9 @@ static int __set_phy_state(struct exynos_mipi_video_phy *state,
 	else
 		reset = EXYNOS4_MIPI_PHY_SRESETN;
 
-	if (state->regmap) {
-		mutex_lock(&state->mutex);
+	spin_lock(&state->slock);
+
+	if (!IS_ERR(state->regmap)) {
 		regmap_read(state->regmap, offset, &val);
 		if (on)
 			val |= reset;
@@ -72,11 +72,9 @@ static int __set_phy_state(struct exynos_mipi_video_phy *state,
 		else if (!(val & EXYNOS4_MIPI_PHY_RESET_MASK))
 			val &= ~EXYNOS4_MIPI_PHY_ENABLE;
 		regmap_write(state->regmap, offset, val);
-		mutex_unlock(&state->mutex);
 	} else {
 		addr = state->regs + EXYNOS_MIPI_PHY_CONTROL(id / 2);
 
-		spin_lock(&state->slock);
 		val = readl(addr);
 		if (on)
 			val |= reset;
@@ -90,9 +88,9 @@ static int __set_phy_state(struct exynos_mipi_video_phy *state,
 			val &= ~EXYNOS4_MIPI_PHY_ENABLE;
 
 		writel(val, addr);
-		spin_unlock(&state->slock);
 	}
 
+	spin_unlock(&state->slock);
 	return 0;
 }
 
@@ -158,7 +156,6 @@ static int exynos_mipi_video_phy_probe(struct platform_device *pdev)
 
 	dev_set_drvdata(dev, state);
 	spin_lock_init(&state->slock);
-	mutex_init(&state->mutex);
 
 	for (i = 0; i < EXYNOS_MIPI_PHYS_NUM; i++) {
 		struct phy *phy = devm_phy_create(dev, NULL,
diff --git a/drivers/phy/phy-exynos4210-usb2.c b/drivers/phy/phy-exynos4210-usb2.c
index 236a52a..f30bbb0 100644
--- a/drivers/phy/phy-exynos4210-usb2.c
+++ b/drivers/phy/phy-exynos4210-usb2.c
@@ -250,7 +250,6 @@ static const struct samsung_usb2_common_phy exynos4210_phys[] = {
 		.power_on	= exynos4210_power_on,
 		.power_off	= exynos4210_power_off,
 	},
-	{},
 };
 
 const struct samsung_usb2_phy_config exynos4210_usb2_phy_config = {
diff --git a/drivers/phy/phy-exynos4x12-usb2.c b/drivers/phy/phy-exynos4x12-usb2.c
index 0b9de88..765da90 100644
--- a/drivers/phy/phy-exynos4x12-usb2.c
+++ b/drivers/phy/phy-exynos4x12-usb2.c
@@ -361,7 +361,6 @@ static const struct samsung_usb2_common_phy exynos4x12_phys[] = {
 		.power_on	= exynos4x12_power_on,
 		.power_off	= exynos4x12_power_off,
 	},
-	{},
 };
 
 const struct samsung_usb2_phy_config exynos3250_usb2_phy_config = {
diff --git a/drivers/phy/phy-exynos5-usbdrd.c b/drivers/phy/phy-exynos5-usbdrd.c
index 0437401..d72ef15 100644
--- a/drivers/phy/phy-exynos5-usbdrd.c
+++ b/drivers/phy/phy-exynos5-usbdrd.c
@@ -531,7 +531,7 @@ static struct phy *exynos5_usbdrd_phy_xlate(struct device *dev,
 {
 	struct exynos5_usbdrd_phy *phy_drd = dev_get_drvdata(dev);
 
-	if (WARN_ON(args->args[0] > EXYNOS5_DRDPHYS_NUM))
+	if (WARN_ON(args->args[0] >= EXYNOS5_DRDPHYS_NUM))
 		return ERR_PTR(-ENODEV);
 
 	return phy_drd->phys[args->args[0]].phy;
@@ -624,6 +624,13 @@ static const struct exynos5_usbdrd_phy_drvdata exynos5250_usbdrd_phy = {
 	.has_common_clk_gate	= true,
 };
 
+static const struct exynos5_usbdrd_phy_drvdata exynos5433_usbdrd_phy = {
+	.phy_cfg		= phy_cfg_exynos5,
+	.pmu_offset_usbdrd0_phy	= EXYNOS5_USBDRD_PHY_CONTROL,
+	.pmu_offset_usbdrd1_phy	= EXYNOS5433_USBHOST30_PHY_CONTROL,
+	.has_common_clk_gate	= false,
+};
+
 static const struct exynos5_usbdrd_phy_drvdata exynos7_usbdrd_phy = {
 	.phy_cfg		= phy_cfg_exynos5,
 	.pmu_offset_usbdrd0_phy	= EXYNOS5_USBDRD_PHY_CONTROL,
@@ -638,6 +645,9 @@ static const struct of_device_id exynos5_usbdrd_phy_of_match[] = {
 		.compatible = "samsung,exynos5420-usbdrd-phy",
 		.data = &exynos5420_usbdrd_phy
 	}, {
+		.compatible = "samsung,exynos5433-usbdrd-phy",
+		.data = &exynos5433_usbdrd_phy
+	}, {
 		.compatible = "samsung,exynos7-usbdrd-phy",
 		.data = &exynos7_usbdrd_phy
 	},
diff --git a/drivers/phy/phy-exynos5250-usb2.c b/drivers/phy/phy-exynos5250-usb2.c
index 1c139aa..2ed1735 100644
--- a/drivers/phy/phy-exynos5250-usb2.c
+++ b/drivers/phy/phy-exynos5250-usb2.c
@@ -391,7 +391,6 @@ static const struct samsung_usb2_common_phy exynos5250_phys[] = {
 		.power_on	= exynos5250_power_on,
 		.power_off	= exynos5250_power_off,
 	},
-	{},
 };
 
 const struct samsung_usb2_phy_config exynos5250_usb2_phy_config = {
diff --git a/drivers/phy/phy-hix5hd2-sata.c b/drivers/phy/phy-hix5hd2-sata.c
index 34915b4..d6b2265 100644
--- a/drivers/phy/phy-hix5hd2-sata.c
+++ b/drivers/phy/phy-hix5hd2-sata.c
@@ -147,6 +147,9 @@ static int hix5hd2_sata_phy_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res)
+		return -EINVAL;
+
 	priv->base = devm_ioremap(dev, res->start, resource_size(res));
 	if (!priv->base)
 		return -ENOMEM;
diff --git a/drivers/phy/phy-miphy28lp.c b/drivers/phy/phy-miphy28lp.c
index 9b2848e..c4cc11d 100644
--- a/drivers/phy/phy-miphy28lp.c
+++ b/drivers/phy/phy-miphy28lp.c
@@ -228,6 +228,7 @@ struct miphy28lp_dev {
 	struct regmap *regmap;
 	struct mutex miphy_mutex;
 	struct miphy28lp_phy **phys;
+	int nphys;
 };
 
 struct miphy_initval {
@@ -1116,7 +1117,7 @@ static struct phy *miphy28lp_xlate(struct device *dev,
 		return ERR_PTR(-EINVAL);
 	}
 
-	for (index = 0; index < of_get_child_count(dev->of_node); index++)
+	for (index = 0; index < miphy_dev->nphys; index++)
 		if (phynode == miphy_dev->phys[index]->phy->dev.of_node) {
 			miphy_phy = miphy_dev->phys[index];
 			break;
@@ -1138,6 +1139,7 @@ static struct phy *miphy28lp_xlate(struct device *dev,
 
 static struct phy_ops miphy28lp_ops = {
 	.init = miphy28lp_init,
+	.owner = THIS_MODULE,
 };
 
 static int miphy28lp_probe_resets(struct device_node *node,
@@ -1200,16 +1202,15 @@ static int miphy28lp_probe(struct platform_device *pdev)
 	struct miphy28lp_dev *miphy_dev;
 	struct phy_provider *provider;
 	struct phy *phy;
-	int chancount, port = 0;
-	int ret;
+	int ret, port = 0;
 
 	miphy_dev = devm_kzalloc(&pdev->dev, sizeof(*miphy_dev), GFP_KERNEL);
 	if (!miphy_dev)
 		return -ENOMEM;
 
-	chancount = of_get_child_count(np);
-	miphy_dev->phys = devm_kzalloc(&pdev->dev, sizeof(phy) * chancount,
-				       GFP_KERNEL);
+	miphy_dev->nphys = of_get_child_count(np);
+	miphy_dev->phys = devm_kcalloc(&pdev->dev, miphy_dev->nphys,
+				       sizeof(*miphy_dev->phys), GFP_KERNEL);
 	if (!miphy_dev->phys)
 		return -ENOMEM;
 
@@ -1258,10 +1259,7 @@ static int miphy28lp_probe(struct platform_device *pdev)
 	}
 
 	provider = devm_of_phy_provider_register(&pdev->dev, miphy28lp_xlate);
-	if (IS_ERR(provider))
-		return PTR_ERR(provider);
-
-	return 0;
+	return PTR_ERR_OR_ZERO(provider);
 }
 
 static const struct of_device_id miphy28lp_of_match[] = {
diff --git a/drivers/phy/phy-miphy365x.c b/drivers/phy/phy-miphy365x.c
index 6c80154..019c2d7 100644
--- a/drivers/phy/phy-miphy365x.c
+++ b/drivers/phy/phy-miphy365x.c
@@ -25,7 +25,7 @@
 #include <linux/mfd/syscon.h>
 #include <linux/regmap.h>
 
-#include <dt-bindings/phy/phy-miphy365x.h>
+#include <dt-bindings/phy/phy.h>
 
 #define HFC_TIMEOUT		100
 
@@ -150,6 +150,7 @@ struct miphy365x_dev {
 	struct regmap *regmap;
 	struct mutex miphy_mutex;
 	struct miphy365x_phy **phys;
+	int nphys;
 };
 
 /*
@@ -176,7 +177,7 @@ static u8 rx_tx_spd[] = {
 static int miphy365x_set_path(struct miphy365x_phy *miphy_phy,
 			      struct miphy365x_dev *miphy_dev)
 {
-	bool sata = (miphy_phy->type == MIPHY_TYPE_SATA);
+	bool sata = (miphy_phy->type == PHY_TYPE_SATA);
 
 	return regmap_update_bits(miphy_dev->regmap,
 				  miphy_phy->ctrlreg,
@@ -430,7 +431,7 @@ static int miphy365x_init(struct phy *phy)
 	}
 
 	/* Initialise Miphy for PCIe or SATA */
-	if (miphy_phy->type == MIPHY_TYPE_PCIE)
+	if (miphy_phy->type == PHY_TYPE_PCIE)
 		ret = miphy365x_init_pcie_port(miphy_phy, miphy_dev);
 	else
 		ret = miphy365x_init_sata_port(miphy_phy, miphy_dev);
@@ -454,8 +455,8 @@ int miphy365x_get_addr(struct device *dev, struct miphy365x_phy *miphy_phy,
 		return ret;
 	}
 
-	if (!((!strncmp(name, "sata", 4) && type == MIPHY_TYPE_SATA) ||
-	      (!strncmp(name, "pcie", 4) && type == MIPHY_TYPE_PCIE)))
+	if (!((!strncmp(name, "sata", 4) && type == PHY_TYPE_SATA) ||
+	      (!strncmp(name, "pcie", 4) && type == PHY_TYPE_PCIE)))
 		return 0;
 
 	miphy_phy->base = of_iomap(phynode, index);
@@ -485,7 +486,7 @@ static struct phy *miphy365x_xlate(struct device *dev,
 		return ERR_PTR(-EINVAL);
 	}
 
-	for (index = 0; index < of_get_child_count(dev->of_node); index++)
+	for (index = 0; index < miphy_dev->nphys; index++)
 		if (phynode == miphy_dev->phys[index]->phy->dev.of_node) {
 			miphy_phy = miphy_dev->phys[index];
 			break;
@@ -498,8 +499,8 @@ static struct phy *miphy365x_xlate(struct device *dev,
 
 	miphy_phy->type = args->args[0];
 
-	if (!(miphy_phy->type == MIPHY_TYPE_SATA ||
-	      miphy_phy->type == MIPHY_TYPE_PCIE)) {
+	if (!(miphy_phy->type == PHY_TYPE_SATA ||
+	      miphy_phy->type == PHY_TYPE_PCIE)) {
 		dev_err(dev, "Unsupported device type: %d\n", miphy_phy->type);
 		return ERR_PTR(-EINVAL);
 	}
@@ -541,16 +542,15 @@ static int miphy365x_probe(struct platform_device *pdev)
 	struct miphy365x_dev *miphy_dev;
 	struct phy_provider *provider;
 	struct phy *phy;
-	int chancount, port = 0;
-	int ret;
+	int ret, port = 0;
 
 	miphy_dev = devm_kzalloc(&pdev->dev, sizeof(*miphy_dev), GFP_KERNEL);
 	if (!miphy_dev)
 		return -ENOMEM;
 
-	chancount = of_get_child_count(np);
-	miphy_dev->phys = devm_kzalloc(&pdev->dev, sizeof(phy) * chancount,
-				       GFP_KERNEL);
+	miphy_dev->nphys = of_get_child_count(np);
+	miphy_dev->phys = devm_kcalloc(&pdev->dev, miphy_dev->nphys,
+				       sizeof(*miphy_dev->phys), GFP_KERNEL);
 	if (!miphy_dev->phys)
 		return -ENOMEM;
 
diff --git a/drivers/phy/phy-omap-control.c b/drivers/phy/phy-omap-control.c
index efe724f..e9c41b3 100644
--- a/drivers/phy/phy-omap-control.c
+++ b/drivers/phy/phy-omap-control.c
@@ -216,7 +216,6 @@ void omap_control_usb_set_mode(struct device *dev,
 		return;
 
 	ctrl_phy = dev_get_drvdata(dev);
-
 	if (!ctrl_phy) {
 		dev_err(dev, "Invalid control phy device\n");
 		return;
@@ -241,8 +240,6 @@ void omap_control_usb_set_mode(struct device *dev,
 }
 EXPORT_SYMBOL_GPL(omap_control_usb_set_mode);
 
-#ifdef CONFIG_OF
-
 static const enum omap_control_phy_type otghs_data = OMAP_CTRL_TYPE_OTGHS;
 static const enum omap_control_phy_type usb2_data = OMAP_CTRL_TYPE_USB2;
 static const enum omap_control_phy_type pipe3_data = OMAP_CTRL_TYPE_PIPE3;
@@ -278,8 +275,6 @@ static const struct of_device_id omap_control_phy_id_table[] = {
 	{},
 };
 MODULE_DEVICE_TABLE(of, omap_control_phy_id_table);
-#endif
-
 
 static int omap_control_phy_probe(struct platform_device *pdev)
 {
@@ -287,8 +282,7 @@ static int omap_control_phy_probe(struct platform_device *pdev)
 	const struct of_device_id *of_id;
 	struct omap_control_phy *control_phy;
 
-	of_id = of_match_device(of_match_ptr(omap_control_phy_id_table),
-				&pdev->dev);
+	of_id = of_match_device(omap_control_phy_id_table, &pdev->dev);
 	if (!of_id)
 		return -EINVAL;
 
@@ -344,7 +338,7 @@ static struct platform_driver omap_control_phy_driver = {
 	.probe		= omap_control_phy_probe,
 	.driver		= {
 		.name	= "omap-control-phy",
-		.of_match_table = of_match_ptr(omap_control_phy_id_table),
+		.of_match_table = omap_control_phy_id_table,
 	},
 };
 
@@ -360,7 +354,7 @@ static void __exit omap_control_phy_exit(void)
 }
 module_exit(omap_control_phy_exit);
 
-MODULE_ALIAS("platform: omap_control_phy");
+MODULE_ALIAS("platform:omap_control_phy");
 MODULE_AUTHOR("Texas Instruments Inc.");
 MODULE_DESCRIPTION("OMAP Control Module PHY Driver");
 MODULE_LICENSE("GPL v2");
diff --git a/drivers/phy/phy-omap-usb2.c b/drivers/phy/phy-omap-usb2.c
index 6f4aef3..183ef43 100644
--- a/drivers/phy/phy-omap-usb2.c
+++ b/drivers/phy/phy-omap-usb2.c
@@ -144,7 +144,6 @@ static struct phy_ops ops = {
 	.owner		= THIS_MODULE,
 };
 
-#ifdef CONFIG_OF
 static const struct usb_phy_data omap_usb2_data = {
 	.label = "omap_usb2",
 	.flags = OMAP_USB2_HAS_START_SRP | OMAP_USB2_HAS_SET_VBUS,
@@ -185,7 +184,6 @@ static const struct of_device_id omap_usb2_id_table[] = {
 	{},
 };
 MODULE_DEVICE_TABLE(of, omap_usb2_id_table);
-#endif
 
 static int omap_usb2_probe(struct platform_device *pdev)
 {
@@ -200,7 +198,7 @@ static int omap_usb2_probe(struct platform_device *pdev)
 	const struct of_device_id *of_id;
 	struct usb_phy_data *phy_data;
 
-	of_id = of_match_device(of_match_ptr(omap_usb2_id_table), &pdev->dev);
+	of_id = of_match_device(omap_usb2_id_table, &pdev->dev);
 
 	if (!of_id)
 		return -EINVAL;
@@ -296,10 +294,11 @@ static int omap_usb2_probe(struct platform_device *pdev)
 			dev_warn(&pdev->dev,
 				 "found usb_otg_ss_refclk960m, please fix DTS\n");
 		}
-	} else {
-		clk_prepare(phy->optclk);
 	}
 
+	if (!IS_ERR(phy->optclk))
+		clk_prepare(phy->optclk);
+
 	usb_add_phy_dev(&phy->phy);
 
 	return 0;
@@ -377,13 +376,13 @@ static struct platform_driver omap_usb2_driver = {
 	.driver		= {
 		.name	= "omap-usb2",
 		.pm	= DEV_PM_OPS,
-		.of_match_table = of_match_ptr(omap_usb2_id_table),
+		.of_match_table = omap_usb2_id_table,
 	},
 };
 
 module_platform_driver(omap_usb2_driver);
 
-MODULE_ALIAS("platform: omap_usb2");
+MODULE_ALIAS("platform:omap_usb2");
 MODULE_AUTHOR("Texas Instruments Inc.");
 MODULE_DESCRIPTION("OMAP USB2 phy driver");
 MODULE_LICENSE("GPL v2");
diff --git a/drivers/phy/phy-qcom-ufs.c b/drivers/phy/phy-qcom-ufs.c
index 44ee983..f9c618f 100644
--- a/drivers/phy/phy-qcom-ufs.c
+++ b/drivers/phy/phy-qcom-ufs.c
@@ -73,6 +73,7 @@ int ufs_qcom_phy_calibrate(struct ufs_qcom_phy *ufs_qcom_phy,
 out:
 	return ret;
 }
+EXPORT_SYMBOL_GPL(ufs_qcom_phy_calibrate);
 
 struct phy *ufs_qcom_phy_generic_probe(struct platform_device *pdev,
 				struct ufs_qcom_phy *common_cfg,
@@ -101,6 +102,7 @@ struct phy *ufs_qcom_phy_generic_probe(struct platform_device *pdev,
 	if (IS_ERR(generic_phy)) {
 		err =  PTR_ERR(generic_phy);
 		dev_err(dev, "%s: failed to create phy %d\n", __func__, err);
+		generic_phy = NULL;
 		goto out;
 	}
 
@@ -110,6 +112,7 @@ struct phy *ufs_qcom_phy_generic_probe(struct platform_device *pdev,
 out:
 	return generic_phy;
 }
+EXPORT_SYMBOL_GPL(ufs_qcom_phy_generic_probe);
 
 /*
  * This assumes the embedded phy structure inside generic_phy is of type
@@ -121,6 +124,7 @@ struct ufs_qcom_phy *get_ufs_qcom_phy(struct phy *generic_phy)
 {
 	return (struct ufs_qcom_phy *)phy_get_drvdata(generic_phy);
 }
+EXPORT_SYMBOL_GPL(get_ufs_qcom_phy);
 
 static
 int ufs_qcom_phy_base_init(struct platform_device *pdev,
@@ -131,40 +135,23 @@ int ufs_qcom_phy_base_init(struct platform_device *pdev,
 	int err = 0;
 
 	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "phy_mem");
-	if (!res) {
-		dev_err(dev, "%s: phy_mem resource not found\n", __func__);
-		err = -ENOMEM;
-		goto out;
-	}
-
 	phy_common->mmio = devm_ioremap_resource(dev, res);
 	if (IS_ERR((void const *)phy_common->mmio)) {
 		err = PTR_ERR((void const *)phy_common->mmio);
 		phy_common->mmio = NULL;
 		dev_err(dev, "%s: ioremap for phy_mem resource failed %d\n",
 			__func__, err);
-		goto out;
+		return err;
 	}
 
 	/* "dev_ref_clk_ctrl_mem" is optional resource */
 	res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
 					   "dev_ref_clk_ctrl_mem");
-	if (!res) {
-		dev_dbg(dev, "%s: dev_ref_clk_ctrl_mem resource not found\n",
-			__func__);
-		goto out;
-	}
-
 	phy_common->dev_ref_clk_ctrl_mmio = devm_ioremap_resource(dev, res);
-	if (IS_ERR((void const *)phy_common->dev_ref_clk_ctrl_mmio)) {
-		err = PTR_ERR((void const *)phy_common->dev_ref_clk_ctrl_mmio);
+	if (IS_ERR((void const *)phy_common->dev_ref_clk_ctrl_mmio))
 		phy_common->dev_ref_clk_ctrl_mmio = NULL;
-		dev_err(dev, "%s: ioremap for dev_ref_clk_ctrl_mem resource failed %d\n",
-			__func__, err);
-	}
 
-out:
-	return err;
+	return 0;
 }
 
 static int __ufs_qcom_phy_clk_get(struct phy *phy,
@@ -228,6 +215,7 @@ ufs_qcom_phy_init_clks(struct phy *generic_phy,
 out:
 	return err;
 }
+EXPORT_SYMBOL_GPL(ufs_qcom_phy_init_clks);
 
 int
 ufs_qcom_phy_init_vregulators(struct phy *generic_phy,
@@ -252,6 +240,7 @@ ufs_qcom_phy_init_vregulators(struct phy *generic_phy,
 out:
 	return err;
 }
+EXPORT_SYMBOL_GPL(ufs_qcom_phy_init_vregulators);
 
 static int __ufs_qcom_phy_init_vreg(struct phy *phy,
 		struct ufs_qcom_phy_vreg *vreg, const char *name, bool optional)
@@ -346,10 +335,10 @@ int ufs_qcom_phy_cfg_vreg(struct phy *phy,
 			goto out;
 		}
 		uA_load = on ? vreg->max_uA : 0;
-		ret = regulator_set_optimum_mode(reg, uA_load);
+		ret = regulator_set_load(reg, uA_load);
 		if (ret >= 0) {
 			/*
-			 * regulator_set_optimum_mode() returns new regulator
+			 * regulator_set_load() returns new regulator
 			 * mode upon success.
 			 */
 			ret = 0;
@@ -647,6 +636,7 @@ int ufs_qcom_phy_remove(struct phy *generic_phy,
 
 	return 0;
 }
+EXPORT_SYMBOL_GPL(ufs_qcom_phy_remove);
 
 int ufs_qcom_phy_exit(struct phy *generic_phy)
 {
@@ -657,6 +647,7 @@ int ufs_qcom_phy_exit(struct phy *generic_phy)
 
 	return 0;
 }
+EXPORT_SYMBOL_GPL(ufs_qcom_phy_exit);
 
 int ufs_qcom_phy_is_pcs_ready(struct phy *generic_phy)
 {
@@ -725,6 +716,7 @@ out_disable_phy:
 out:
 	return err;
 }
+EXPORT_SYMBOL_GPL(ufs_qcom_phy_power_on);
 
 int ufs_qcom_phy_power_off(struct phy *generic_phy)
 {
@@ -743,3 +735,4 @@ int ufs_qcom_phy_power_off(struct phy *generic_phy)
 
 	return 0;
 }
+EXPORT_SYMBOL_GPL(ufs_qcom_phy_power_off);
diff --git a/drivers/phy/phy-rockchip-usb.c b/drivers/phy/phy-rockchip-usb.c
index 22011c3..7d4c336 100644
--- a/drivers/phy/phy-rockchip-usb.c
+++ b/drivers/phy/phy-rockchip-usb.c
@@ -61,8 +61,6 @@ static int rockchip_usb_phy_power_off(struct phy *_phy)
 		return ret;
 
 	clk_disable_unprepare(phy->clk);
-	if (ret)
-		return ret;
 
 	return 0;
 }
@@ -78,8 +76,10 @@ static int rockchip_usb_phy_power_on(struct phy *_phy)
 
 	/* Power up usb phy analog blocks by set siddq 0 */
 	ret = rockchip_usb_phy_power(phy, 0);
-	if (ret)
+	if (ret) {
+		clk_disable_unprepare(phy->clk);
 		return ret;
+	}
 
 	return 0;
 }
diff --git a/drivers/phy/phy-samsung-usb2.c b/drivers/phy/phy-samsung-usb2.c
index 4a12f66..55b6994 100644
--- a/drivers/phy/phy-samsung-usb2.c
+++ b/drivers/phy/phy-samsung-usb2.c
@@ -37,10 +37,14 @@ static int samsung_usb2_phy_power_on(struct phy *phy)
 		spin_lock(&drv->lock);
 		ret = inst->cfg->power_on(inst);
 		spin_unlock(&drv->lock);
+		if (ret)
+			goto err_power_on;
 	}
 
 	return 0;
 
+err_power_on:
+	clk_disable_unprepare(drv->ref_clk);
 err_instance_clk:
 	clk_disable_unprepare(drv->clk);
 err_main_clk:
@@ -51,7 +55,7 @@ static int samsung_usb2_phy_power_off(struct phy *phy)
 {
 	struct samsung_usb2_phy_instance *inst = phy_get_drvdata(phy);
 	struct samsung_usb2_phy_driver *drv = inst->drv;
-	int ret = 0;
+	int ret;
 
 	dev_dbg(drv->dev, "Request to power_off \"%s\" usb phy\n",
 		inst->cfg->label);
@@ -59,10 +63,12 @@ static int samsung_usb2_phy_power_off(struct phy *phy)
 		spin_lock(&drv->lock);
 		ret = inst->cfg->power_off(inst);
 		spin_unlock(&drv->lock);
+		if (ret)
+			return ret;
 	}
 	clk_disable_unprepare(drv->ref_clk);
 	clk_disable_unprepare(drv->clk);
-	return ret;
+	return 0;
 }
 
 static struct phy_ops samsung_usb2_phy_ops = {
diff --git a/drivers/phy/phy-spear1310-miphy.c b/drivers/phy/phy-spear1310-miphy.c
index 9f47fae..65ae640 100644
--- a/drivers/phy/phy-spear1310-miphy.c
+++ b/drivers/phy/phy-spear1310-miphy.c
@@ -192,14 +192,14 @@ static struct phy *spear1310_miphy_xlate(struct device *dev,
 
 	if (args->args_count < 1) {
 		dev_err(dev, "DT did not pass correct no of args\n");
-		return NULL;
+		return ERR_PTR(-ENODEV);
 	}
 
 	priv->mode = args->args[0];
 
 	if (priv->mode != SATA && priv->mode != PCIE) {
 		dev_err(dev, "DT did not pass correct phy mode\n");
-		return NULL;
+		return ERR_PTR(-ENODEV);
 	}
 
 	return priv->phy;
diff --git a/drivers/phy/phy-spear1340-miphy.c b/drivers/phy/phy-spear1340-miphy.c
index e42bc20..1a00c28 100644
--- a/drivers/phy/phy-spear1340-miphy.c
+++ b/drivers/phy/phy-spear1340-miphy.c
@@ -229,14 +229,14 @@ static struct phy *spear1340_miphy_xlate(struct device *dev,
 
 	if (args->args_count < 1) {
 		dev_err(dev, "DT did not pass correct no of args\n");
-		return NULL;
+		return ERR_PTR(-ENODEV);
 	}
 
 	priv->mode = args->args[0];
 
 	if (priv->mode != SATA && priv->mode != PCIE) {
 		dev_err(dev, "DT did not pass correct phy mode\n");
-		return NULL;
+		return ERR_PTR(-ENODEV);
 	}
 
 	return priv->phy;
diff --git a/drivers/phy/phy-stih41x-usb.c b/drivers/phy/phy-stih41x-usb.c
index a603801..c093b47 100644
--- a/drivers/phy/phy-stih41x-usb.c
+++ b/drivers/phy/phy-stih41x-usb.c
@@ -87,8 +87,12 @@ static int stih41x_usb_phy_power_on(struct phy *phy)
 		return ret;
 	}
 
-	return regmap_update_bits(phy_dev->regmap, phy_dev->cfg->syscfg,
-			phy_dev->cfg->oscok, phy_dev->cfg->oscok);
+	ret = regmap_update_bits(phy_dev->regmap, phy_dev->cfg->syscfg,
+				 phy_dev->cfg->oscok, phy_dev->cfg->oscok);
+	if (ret)
+		clk_disable_unprepare(phy_dev->clk);
+
+	return ret;
 }
 
 static int stih41x_usb_phy_power_off(struct phy *phy)
diff --git a/drivers/phy/phy-sun9i-usb.c b/drivers/phy/phy-sun9i-usb.c
new file mode 100644
index 0000000..0095914
--- /dev/null
+++ b/drivers/phy/phy-sun9i-usb.c
@@ -0,0 +1,202 @@
+/*
+ * Allwinner sun9i USB phy driver
+ *
+ * Copyright (C) 2014-2015 Chen-Yu Tsai <wens@csie.org>
+ *
+ * Based on phy-sun4i-usb.c from
+ * Hans de Goede <hdegoede@redhat.com>
+ *
+ * and code from
+ * Allwinner Technology Co., Ltd. <www.allwinnertech.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/clk.h>
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/phy/phy.h>
+#include <linux/usb/of.h>
+#include <linux/platform_device.h>
+#include <linux/reset.h>
+
+#define SUNXI_AHB_INCR16_BURST_EN	BIT(11)
+#define SUNXI_AHB_INCR8_BURST_EN	BIT(10)
+#define SUNXI_AHB_INCR4_BURST_EN	BIT(9)
+#define SUNXI_AHB_INCRX_ALIGN_EN	BIT(8)
+#define SUNXI_ULPI_BYPASS_EN		BIT(0)
+
+/* usb1 HSIC specific bits */
+#define SUNXI_EHCI_HS_FORCE		BIT(20)
+#define SUNXI_HSIC_CONNECT_DET		BIT(17)
+#define SUNXI_HSIC_CONNECT_INT		BIT(16)
+#define SUNXI_HSIC			BIT(1)
+
+struct sun9i_usb_phy {
+	struct phy *phy;
+	void __iomem *pmu;
+	struct reset_control *reset;
+	struct clk *clk;
+	struct clk *hsic_clk;
+	enum usb_phy_interface type;
+};
+
+static void sun9i_usb_phy_passby(struct sun9i_usb_phy *phy, int enable)
+{
+	u32 bits, reg_value;
+
+	bits = SUNXI_AHB_INCR16_BURST_EN | SUNXI_AHB_INCR8_BURST_EN |
+		SUNXI_AHB_INCR4_BURST_EN | SUNXI_AHB_INCRX_ALIGN_EN |
+		SUNXI_ULPI_BYPASS_EN;
+
+	if (phy->type == USBPHY_INTERFACE_MODE_HSIC)
+		bits |= SUNXI_HSIC | SUNXI_EHCI_HS_FORCE |
+			SUNXI_HSIC_CONNECT_DET | SUNXI_HSIC_CONNECT_INT;
+
+	reg_value = readl(phy->pmu);
+
+	if (enable)
+		reg_value |= bits;
+	else
+		reg_value &= ~bits;
+
+	writel(reg_value, phy->pmu);
+}
+
+static int sun9i_usb_phy_init(struct phy *_phy)
+{
+	struct sun9i_usb_phy *phy = phy_get_drvdata(_phy);
+	int ret;
+
+	ret = clk_prepare_enable(phy->clk);
+	if (ret)
+		goto err_clk;
+
+	ret = clk_prepare_enable(phy->hsic_clk);
+	if (ret)
+		goto err_hsic_clk;
+
+	ret = reset_control_deassert(phy->reset);
+	if (ret)
+		goto err_reset;
+
+	sun9i_usb_phy_passby(phy, 1);
+	return 0;
+
+err_reset:
+	clk_disable_unprepare(phy->hsic_clk);
+
+err_hsic_clk:
+	clk_disable_unprepare(phy->clk);
+
+err_clk:
+	return ret;
+}
+
+static int sun9i_usb_phy_exit(struct phy *_phy)
+{
+	struct sun9i_usb_phy *phy = phy_get_drvdata(_phy);
+
+	sun9i_usb_phy_passby(phy, 0);
+	reset_control_assert(phy->reset);
+	clk_disable_unprepare(phy->hsic_clk);
+	clk_disable_unprepare(phy->clk);
+
+	return 0;
+}
+
+static struct phy_ops sun9i_usb_phy_ops = {
+	.init		= sun9i_usb_phy_init,
+	.exit		= sun9i_usb_phy_exit,
+	.owner		= THIS_MODULE,
+};
+
+static int sun9i_usb_phy_probe(struct platform_device *pdev)
+{
+	struct sun9i_usb_phy *phy;
+	struct device *dev = &pdev->dev;
+	struct device_node *np = dev->of_node;
+	struct phy_provider *phy_provider;
+	struct resource *res;
+
+	phy = devm_kzalloc(dev, sizeof(*phy), GFP_KERNEL);
+	if (!phy)
+		return -ENOMEM;
+
+	phy->type = of_usb_get_phy_mode(np);
+	if (phy->type == USBPHY_INTERFACE_MODE_HSIC) {
+		phy->clk = devm_clk_get(dev, "hsic_480M");
+		if (IS_ERR(phy->clk)) {
+			dev_err(dev, "failed to get hsic_480M clock\n");
+			return PTR_ERR(phy->clk);
+		}
+
+		phy->hsic_clk = devm_clk_get(dev, "hsic_12M");
+		if (IS_ERR(phy->clk)) {
+			dev_err(dev, "failed to get hsic_12M clock\n");
+			return PTR_ERR(phy->clk);
+		}
+
+		phy->reset = devm_reset_control_get(dev, "hsic");
+		if (IS_ERR(phy->reset)) {
+			dev_err(dev, "failed to get reset control\n");
+			return PTR_ERR(phy->reset);
+		}
+	} else {
+		phy->clk = devm_clk_get(dev, "phy");
+		if (IS_ERR(phy->clk)) {
+			dev_err(dev, "failed to get phy clock\n");
+			return PTR_ERR(phy->clk);
+		}
+
+		phy->reset = devm_reset_control_get(dev, "phy");
+		if (IS_ERR(phy->reset)) {
+			dev_err(dev, "failed to get reset control\n");
+			return PTR_ERR(phy->reset);
+		}
+	}
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	phy->pmu = devm_ioremap_resource(dev, res);
+	if (IS_ERR(phy->pmu))
+		return PTR_ERR(phy->pmu);
+
+	phy->phy = devm_phy_create(dev, NULL, &sun9i_usb_phy_ops);
+	if (IS_ERR(phy->phy)) {
+		dev_err(dev, "failed to create PHY\n");
+		return PTR_ERR(phy->phy);
+	}
+
+	phy_set_drvdata(phy->phy, phy);
+	phy_provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate);
+
+	return PTR_ERR_OR_ZERO(phy_provider);
+}
+
+static const struct of_device_id sun9i_usb_phy_of_match[] = {
+	{ .compatible = "allwinner,sun9i-a80-usb-phy" },
+	{ },
+};
+MODULE_DEVICE_TABLE(of, sun9i_usb_phy_of_match);
+
+static struct platform_driver sun9i_usb_phy_driver = {
+	.probe	= sun9i_usb_phy_probe,
+	.driver = {
+		.of_match_table	= sun9i_usb_phy_of_match,
+		.name  = "sun9i-usb-phy",
+	}
+};
+module_platform_driver(sun9i_usb_phy_driver);
+
+MODULE_DESCRIPTION("Allwinner sun9i USB phy driver");
+MODULE_AUTHOR("Chen-Yu Tsai <wens@csie.org>");
+MODULE_LICENSE("GPL");
diff --git a/drivers/phy/phy-ti-pipe3.c b/drivers/phy/phy-ti-pipe3.c
index 95c88f9..53f295c 100644
--- a/drivers/phy/phy-ti-pipe3.c
+++ b/drivers/phy/phy-ti-pipe3.c
@@ -165,15 +165,11 @@ static int ti_pipe3_dpll_wait_lock(struct ti_pipe3 *phy)
 		cpu_relax();
 		val = ti_pipe3_readl(phy->pll_ctrl_base, PLL_STATUS);
 		if (val & PLL_LOCK)
-			break;
+			return 0;
 	} while (!time_after(jiffies, timeout));
 
-	if (!(val & PLL_LOCK)) {
-		dev_err(phy->dev, "DPLL failed to lock\n");
-		return -EBUSY;
-	}
-
-	return 0;
+	dev_err(phy->dev, "DPLL failed to lock\n");
+	return -EBUSY;
 }
 
 static int ti_pipe3_dpll_program(struct ti_pipe3 *phy)
@@ -291,9 +287,7 @@ static struct phy_ops ops = {
 	.owner		= THIS_MODULE,
 };
 
-#ifdef CONFIG_OF
 static const struct of_device_id ti_pipe3_id_table[];
-#endif
 
 static int ti_pipe3_probe(struct platform_device *pdev)
 {
@@ -315,8 +309,7 @@ static int ti_pipe3_probe(struct platform_device *pdev)
 	spin_lock_init(&phy->lock);
 
 	if (!of_device_is_compatible(node, "ti,phy-pipe3-pcie")) {
-		match = of_match_device(of_match_ptr(ti_pipe3_id_table),
-					&pdev->dev);
+		match = of_match_device(ti_pipe3_id_table, &pdev->dev);
 		if (!match)
 			return -EINVAL;
 
@@ -574,7 +567,6 @@ static const struct dev_pm_ops ti_pipe3_pm_ops = {
 	SET_SYSTEM_SLEEP_PM_OPS(ti_pipe3_suspend, ti_pipe3_resume)
 };
 
-#ifdef CONFIG_OF
 static const struct of_device_id ti_pipe3_id_table[] = {
 	{
 		.compatible = "ti,phy-usb3",
@@ -594,7 +586,6 @@ static const struct of_device_id ti_pipe3_id_table[] = {
 	{}
 };
 MODULE_DEVICE_TABLE(of, ti_pipe3_id_table);
-#endif
 
 static struct platform_driver ti_pipe3_driver = {
 	.probe		= ti_pipe3_probe,
@@ -602,13 +593,13 @@ static struct platform_driver ti_pipe3_driver = {
 	.driver		= {
 		.name	= "ti-pipe3",
 		.pm	= &ti_pipe3_pm_ops,
-		.of_match_table = of_match_ptr(ti_pipe3_id_table),
+		.of_match_table = ti_pipe3_id_table,
 	},
 };
 
 module_platform_driver(ti_pipe3_driver);
 
-MODULE_ALIAS("platform: ti_pipe3");
+MODULE_ALIAS("platform:ti_pipe3");
 MODULE_AUTHOR("Texas Instruments Inc.");
 MODULE_DESCRIPTION("TI PIPE3 phy driver");
 MODULE_LICENSE("GPL v2");
diff --git a/drivers/phy/phy-twl4030-usb.c b/drivers/phy/phy-twl4030-usb.c
index 8e87f54..bc42d6a 100644
--- a/drivers/phy/phy-twl4030-usb.c
+++ b/drivers/phy/phy-twl4030-usb.c
@@ -666,7 +666,6 @@ static int twl4030_usb_probe(struct platform_device *pdev)
 	twl->dev		= &pdev->dev;
 	twl->irq		= platform_get_irq(pdev, 0);
 	twl->vbus_supplied	= false;
-	twl->linkstat		= -EINVAL;
 	twl->linkstat		= OMAP_MUSB_UNKNOWN;
 
 	twl->phy.dev		= twl->dev;
diff --git a/drivers/phy/phy-xgene.c b/drivers/phy/phy-xgene.c
index 29214a3..385362e 100644
--- a/drivers/phy/phy-xgene.c
+++ b/drivers/phy/phy-xgene.c
@@ -1657,7 +1657,6 @@ static int xgene_phy_probe(struct platform_device *pdev)
 	struct phy_provider *phy_provider;
 	struct xgene_phy_ctx *ctx;
 	struct resource *res;
-	int rc = 0;
 	u32 default_spd[] = DEFAULT_SATA_SPD_SEL;
 	u32 default_txboost_gain[] = DEFAULT_SATA_TXBOOST_GAIN;
 	u32 default_txeye_direction[] = DEFAULT_SATA_TXEYEDIRECTION;
@@ -1676,10 +1675,8 @@ static int xgene_phy_probe(struct platform_device *pdev)
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	ctx->sds_base = devm_ioremap_resource(&pdev->dev, res);
-	if (IS_ERR(ctx->sds_base)) {
-		rc = PTR_ERR(ctx->sds_base);
-		goto error;
-	}
+	if (IS_ERR(ctx->sds_base))
+		return PTR_ERR(ctx->sds_base);
 
 	/* Retrieve optional clock */
 	ctx->clk = clk_get(&pdev->dev, NULL);
@@ -1704,28 +1701,17 @@ static int xgene_phy_probe(struct platform_device *pdev)
 	for (i = 0; i < MAX_LANE; i++)
 		ctx->sata_param.speed[i] = 2; /* Default to Gen3 */
 
-	ctx->dev = &pdev->dev;
 	platform_set_drvdata(pdev, ctx);
 
 	ctx->phy = devm_phy_create(ctx->dev, NULL, &xgene_phy_ops);
 	if (IS_ERR(ctx->phy)) {
 		dev_dbg(&pdev->dev, "Failed to create PHY\n");
-		rc = PTR_ERR(ctx->phy);
-		goto error;
+		return PTR_ERR(ctx->phy);
 	}
 	phy_set_drvdata(ctx->phy, ctx);
 
-	phy_provider = devm_of_phy_provider_register(ctx->dev,
-						     xgene_phy_xlate);
-	if (IS_ERR(phy_provider)) {
-		rc = PTR_ERR(phy_provider);
-		goto error;
-	}
-
-	return 0;
-
-error:
-	return rc;
+	phy_provider = devm_of_phy_provider_register(ctx->dev, xgene_phy_xlate);
+	return PTR_ERR_OR_ZERO(phy_provider);
 }
 
 static const struct of_device_id xgene_phy_of_match[] = {
diff --git a/drivers/pinctrl/intel/pinctrl-baytrail.c b/drivers/pinctrl/intel/pinctrl-baytrail.c
index 5afe03e..2062c22 100644
--- a/drivers/pinctrl/intel/pinctrl-baytrail.c
+++ b/drivers/pinctrl/intel/pinctrl-baytrail.c
@@ -66,6 +66,10 @@
 #define BYT_DIR_MASK		(BIT(1) | BIT(2))
 #define BYT_TRIG_MASK		(BIT(26) | BIT(25) | BIT(24))
 
+#define BYT_CONF0_RESTORE_MASK	(BYT_DIRECT_IRQ_EN | BYT_TRIG_MASK | \
+				 BYT_PIN_MUX)
+#define BYT_VAL_RESTORE_MASK	(BYT_DIR_MASK | BYT_LEVEL)
+
 #define BYT_NGPIO_SCORE		102
 #define BYT_NGPIO_NCORE		28
 #define BYT_NGPIO_SUS		44
@@ -134,12 +138,18 @@ static struct pinctrl_gpio_range byt_ranges[] = {
 	},
 };
 
+struct byt_gpio_pin_context {
+	u32 conf0;
+	u32 val;
+};
+
 struct byt_gpio {
 	struct gpio_chip		chip;
 	struct platform_device		*pdev;
 	spinlock_t			lock;
 	void __iomem			*reg_base;
 	struct pinctrl_gpio_range	*range;
+	struct byt_gpio_pin_context	*saved_context;
 };
 
 #define to_byt_gpio(c)	container_of(c, struct byt_gpio, chip)
@@ -158,40 +168,62 @@ static void __iomem *byt_gpio_reg(struct gpio_chip *chip, unsigned offset,
 	return vg->reg_base + reg_offset + reg;
 }
 
-static bool is_special_pin(struct byt_gpio *vg, unsigned offset)
+static void byt_gpio_clear_triggering(struct byt_gpio *vg, unsigned offset)
+{
+	void __iomem *reg = byt_gpio_reg(&vg->chip, offset, BYT_CONF0_REG);
+	unsigned long flags;
+	u32 value;
+
+	spin_lock_irqsave(&vg->lock, flags);
+	value = readl(reg);
+	value &= ~(BYT_TRIG_POS | BYT_TRIG_NEG | BYT_TRIG_LVL);
+	writel(value, reg);
+	spin_unlock_irqrestore(&vg->lock, flags);
+}
+
+static u32 byt_get_gpio_mux(struct byt_gpio *vg, unsigned offset)
 {
 	/* SCORE pin 92-93 */
 	if (!strcmp(vg->range->name, BYT_SCORE_ACPI_UID) &&
 		offset >= 92 && offset <= 93)
-		return true;
+		return 1;
 
 	/* SUS pin 11-21 */
 	if (!strcmp(vg->range->name, BYT_SUS_ACPI_UID) &&
 		offset >= 11 && offset <= 21)
-		return true;
+		return 1;
 
-	return false;
+	return 0;
 }
 
 static int byt_gpio_request(struct gpio_chip *chip, unsigned offset)
 {
 	struct byt_gpio *vg = to_byt_gpio(chip);
 	void __iomem *reg = byt_gpio_reg(chip, offset, BYT_CONF0_REG);
-	u32 value;
-	bool special;
+	u32 value, gpio_mux;
 
 	/*
 	 * In most cases, func pin mux 000 means GPIO function.
 	 * But, some pins may have func pin mux 001 represents
-	 * GPIO function. Only allow user to export pin with
-	 * func pin mux preset as GPIO function by BIOS/FW.
+	 * GPIO function.
+	 *
+	 * Because there are devices out there where some pins were not
+	 * configured correctly we allow changing the mux value from
+	 * request (but print out warning about that).
 	 */
 	value = readl(reg) & BYT_PIN_MUX;
-	special = is_special_pin(vg, offset);
-	if ((special && value != 1) || (!special && value)) {
-		dev_err(&vg->pdev->dev,
-			"pin %u cannot be used as GPIO.\n", offset);
-		return -EINVAL;
+	gpio_mux = byt_get_gpio_mux(vg, offset);
+	if (WARN_ON(gpio_mux != value)) {
+		unsigned long flags;
+
+		spin_lock_irqsave(&vg->lock, flags);
+		value = readl(reg) & ~BYT_PIN_MUX;
+		value |= gpio_mux;
+		writel(value, reg);
+		spin_unlock_irqrestore(&vg->lock, flags);
+
+		dev_warn(&vg->pdev->dev,
+			 "pin %u forcibly re-configured as GPIO\n", offset);
 	}
 
 	pm_runtime_get(&vg->pdev->dev);
@@ -202,14 +234,8 @@ static int byt_gpio_request(struct gpio_chip *chip, unsigned offset)
 static void byt_gpio_free(struct gpio_chip *chip, unsigned offset)
 {
 	struct byt_gpio *vg = to_byt_gpio(chip);
-	void __iomem *reg = byt_gpio_reg(&vg->chip, offset, BYT_CONF0_REG);
-	u32 value;
-
-	/* clear interrupt triggering */
-	value = readl(reg);
-	value &= ~(BYT_TRIG_POS | BYT_TRIG_NEG | BYT_TRIG_LVL);
-	writel(value, reg);
 
+	byt_gpio_clear_triggering(vg, offset);
 	pm_runtime_put(&vg->pdev->dev);
 }
 
@@ -236,23 +262,13 @@ static int byt_irq_type(struct irq_data *d, unsigned type)
 	value &= ~(BYT_DIRECT_IRQ_EN | BYT_TRIG_POS | BYT_TRIG_NEG |
 		   BYT_TRIG_LVL);
 
-	switch (type) {
-	case IRQ_TYPE_LEVEL_HIGH:
-		value |= BYT_TRIG_LVL;
-	case IRQ_TYPE_EDGE_RISING:
-		value |= BYT_TRIG_POS;
-		break;
-	case IRQ_TYPE_LEVEL_LOW:
-		value |= BYT_TRIG_LVL;
-	case IRQ_TYPE_EDGE_FALLING:
-		value |= BYT_TRIG_NEG;
-		break;
-	case IRQ_TYPE_EDGE_BOTH:
-		value |= (BYT_TRIG_NEG | BYT_TRIG_POS);
-		break;
-	}
 	writel(value, reg);
 
+	if (type & IRQ_TYPE_EDGE_BOTH)
+		__irq_set_handler_locked(d->irq, handle_edge_irq);
+	else if (type & IRQ_TYPE_LEVEL_MASK)
+		__irq_set_handler_locked(d->irq, handle_level_irq);
+
 	spin_unlock_irqrestore(&vg->lock, flags);
 
 	return 0;
@@ -410,58 +426,80 @@ static void byt_gpio_irq_handler(unsigned irq, struct irq_desc *desc)
 	struct irq_data *data = irq_desc_get_irq_data(desc);
 	struct byt_gpio *vg = to_byt_gpio(irq_desc_get_handler_data(desc));
 	struct irq_chip *chip = irq_data_get_irq_chip(data);
-	u32 base, pin, mask;
+	u32 base, pin;
 	void __iomem *reg;
-	u32 pending;
+	unsigned long pending;
 	unsigned virq;
-	int looplimit = 0;
 
 	/* check from GPIO controller which pin triggered the interrupt */
 	for (base = 0; base < vg->chip.ngpio; base += 32) {
-
 		reg = byt_gpio_reg(&vg->chip, base, BYT_INT_STAT_REG);
-
-		while ((pending = readl(reg))) {
-			pin = __ffs(pending);
-			mask = BIT(pin);
-			/* Clear before handling so we can't lose an edge */
-			writel(mask, reg);
-
+		pending = readl(reg);
+		for_each_set_bit(pin, &pending, 32) {
 			virq = irq_find_mapping(vg->chip.irqdomain, base + pin);
 			generic_handle_irq(virq);
-
-			/* In case bios or user sets triggering incorretly a pin
-			 * might remain in "interrupt triggered" state.
-			 */
-			if (looplimit++ > 32) {
-				dev_err(&vg->pdev->dev,
-					"Gpio %d interrupt flood, disabling\n",
-					base + pin);
-
-				reg = byt_gpio_reg(&vg->chip, base + pin,
-						   BYT_CONF0_REG);
-				mask = readl(reg);
-				mask &= ~(BYT_TRIG_NEG | BYT_TRIG_POS |
-					  BYT_TRIG_LVL);
-				writel(mask, reg);
-				mask = readl(reg); /* flush */
-				break;
-			}
 		}
 	}
 	chip->irq_eoi(data);
 }
 
+static void byt_irq_ack(struct irq_data *d)
+{
+	struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
+	struct byt_gpio *vg = to_byt_gpio(gc);
+	unsigned offset = irqd_to_hwirq(d);
+	void __iomem *reg;
+
+	reg = byt_gpio_reg(&vg->chip, offset, BYT_INT_STAT_REG);
+	writel(BIT(offset % 32), reg);
+}
+
 static void byt_irq_unmask(struct irq_data *d)
 {
+	struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
+	struct byt_gpio *vg = to_byt_gpio(gc);
+	unsigned offset = irqd_to_hwirq(d);
+	unsigned long flags;
+	void __iomem *reg;
+	u32 value;
+
+	spin_lock_irqsave(&vg->lock, flags);
+
+	reg = byt_gpio_reg(&vg->chip, offset, BYT_CONF0_REG);
+	value = readl(reg);
+
+	switch (irqd_get_trigger_type(d)) {
+	case IRQ_TYPE_LEVEL_HIGH:
+		value |= BYT_TRIG_LVL;
+	case IRQ_TYPE_EDGE_RISING:
+		value |= BYT_TRIG_POS;
+		break;
+	case IRQ_TYPE_LEVEL_LOW:
+		value |= BYT_TRIG_LVL;
+	case IRQ_TYPE_EDGE_FALLING:
+		value |= BYT_TRIG_NEG;
+		break;
+	case IRQ_TYPE_EDGE_BOTH:
+		value |= (BYT_TRIG_NEG | BYT_TRIG_POS);
+		break;
+	}
+
+	writel(value, reg);
+
+	spin_unlock_irqrestore(&vg->lock, flags);
 }
 
 static void byt_irq_mask(struct irq_data *d)
 {
+	struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
+	struct byt_gpio *vg = to_byt_gpio(gc);
+
+	byt_gpio_clear_triggering(vg, irqd_to_hwirq(d));
 }
 
 static struct irq_chip byt_irqchip = {
 	.name = "BYT-GPIO",
+	.irq_ack = byt_irq_ack,
 	.irq_mask = byt_irq_mask,
 	.irq_unmask = byt_irq_unmask,
 	.irq_set_type = byt_irq_type,
@@ -472,6 +510,21 @@ static void byt_gpio_irq_init_hw(struct byt_gpio *vg)
 {
 	void __iomem *reg;
 	u32 base, value;
+	int i;
+
+	/*
+	 * Clear interrupt triggers for all pins that are GPIOs and
+	 * do not use direct IRQ mode. This will prevent spurious
+	 * interrupts from misconfigured pins.
+	 */
+	for (i = 0; i < vg->chip.ngpio; i++) {
+		value = readl(byt_gpio_reg(&vg->chip, i, BYT_CONF0_REG));
+		if ((value & BYT_PIN_MUX) == byt_get_gpio_mux(vg, i) &&
+		    !(value & BYT_DIRECT_IRQ_EN)) {
+			byt_gpio_clear_triggering(vg, i);
+			dev_dbg(&vg->pdev->dev, "disabling GPIO %d\n", i);
+		}
+	}
 
 	/* clear interrupt status trigger registers */
 	for (base = 0; base < vg->chip.ngpio; base += 32) {
@@ -541,6 +594,11 @@ static int byt_gpio_probe(struct platform_device *pdev)
 	gc->can_sleep = false;
 	gc->dev = dev;
 
+#ifdef CONFIG_PM_SLEEP
+	vg->saved_context = devm_kcalloc(&pdev->dev, gc->ngpio,
+				       sizeof(*vg->saved_context), GFP_KERNEL);
+#endif
+
 	ret = gpiochip_add(gc);
 	if (ret) {
 		dev_err(&pdev->dev, "failed adding byt-gpio chip\n");
@@ -569,6 +627,69 @@ static int byt_gpio_probe(struct platform_device *pdev)
 	return 0;
 }
 
+#ifdef CONFIG_PM_SLEEP
+static int byt_gpio_suspend(struct device *dev)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	struct byt_gpio *vg = platform_get_drvdata(pdev);
+	int i;
+
+	for (i = 0; i < vg->chip.ngpio; i++) {
+		void __iomem *reg;
+		u32 value;
+
+		reg = byt_gpio_reg(&vg->chip, i, BYT_CONF0_REG);
+		value = readl(reg) & BYT_CONF0_RESTORE_MASK;
+		vg->saved_context[i].conf0 = value;
+
+		reg = byt_gpio_reg(&vg->chip, i, BYT_VAL_REG);
+		value = readl(reg) & BYT_VAL_RESTORE_MASK;
+		vg->saved_context[i].val = value;
+	}
+
+	return 0;
+}
+
+static int byt_gpio_resume(struct device *dev)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	struct byt_gpio *vg = platform_get_drvdata(pdev);
+	int i;
+
+	for (i = 0; i < vg->chip.ngpio; i++) {
+		void __iomem *reg;
+		u32 value;
+
+		reg = byt_gpio_reg(&vg->chip, i, BYT_CONF0_REG);
+		value = readl(reg);
+		if ((value & BYT_CONF0_RESTORE_MASK) !=
+		     vg->saved_context[i].conf0) {
+			value &= ~BYT_CONF0_RESTORE_MASK;
+			value |= vg->saved_context[i].conf0;
+			writel(value, reg);
+			dev_info(dev, "restored pin %d conf0 %#08x", i, value);
+		}
+
+		reg = byt_gpio_reg(&vg->chip, i, BYT_VAL_REG);
+		value = readl(reg);
+		if ((value & BYT_VAL_RESTORE_MASK) !=
+		     vg->saved_context[i].val) {
+			u32 v;
+
+			v = value & ~BYT_VAL_RESTORE_MASK;
+			v |= vg->saved_context[i].val;
+			if (v != value) {
+				writel(v, reg);
+				dev_dbg(dev, "restored pin %d val %#08x\n",
+					i, v);
+			}
+		}
+	}
+
+	return 0;
+}
+#endif
+
 static int byt_gpio_runtime_suspend(struct device *dev)
 {
 	return 0;
@@ -580,8 +701,9 @@ static int byt_gpio_runtime_resume(struct device *dev)
 }
 
 static const struct dev_pm_ops byt_gpio_pm_ops = {
-	.runtime_suspend = byt_gpio_runtime_suspend,
-	.runtime_resume = byt_gpio_runtime_resume,
+	SET_LATE_SYSTEM_SLEEP_PM_OPS(byt_gpio_suspend, byt_gpio_resume)
+	SET_RUNTIME_PM_OPS(byt_gpio_runtime_suspend, byt_gpio_runtime_resume,
+			   NULL)
 };
 
 static const struct acpi_device_id byt_gpio_acpi_match[] = {
diff --git a/drivers/pinctrl/intel/pinctrl-cherryview.c b/drivers/pinctrl/intel/pinctrl-cherryview.c
index 3034fd0..82f691e 100644
--- a/drivers/pinctrl/intel/pinctrl-cherryview.c
+++ b/drivers/pinctrl/intel/pinctrl-cherryview.c
@@ -1226,6 +1226,7 @@ static int chv_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
 static int chv_gpio_direction_output(struct gpio_chip *chip, unsigned offset,
 				     int value)
 {
+	chv_gpio_set(chip, offset, value);
 	return pinctrl_gpio_direction_output(chip->base + offset);
 }
 
diff --git a/drivers/pinctrl/pinctrl-at91.c b/drivers/pinctrl/pinctrl-at91.c
index f4cd0b9..a481406 100644
--- a/drivers/pinctrl/pinctrl-at91.c
+++ b/drivers/pinctrl/pinctrl-at91.c
@@ -1477,28 +1477,25 @@ static void gpio_irq_ack(struct irq_data *d)
 	/* the interrupt is already cleared before by reading ISR */
 }
 
-static unsigned int gpio_irq_startup(struct irq_data *d)
+static int gpio_irq_request_res(struct irq_data *d)
 {
 	struct at91_gpio_chip *at91_gpio = irq_data_get_irq_chip_data(d);
 	unsigned	pin = d->hwirq;
 	int ret;
 
 	ret = gpiochip_lock_as_irq(&at91_gpio->chip, pin);
-	if (ret) {
+	if (ret)
 		dev_err(at91_gpio->chip.dev, "unable to lock pind %lu IRQ\n",
 			d->hwirq);
-		return ret;
-	}
-	gpio_irq_unmask(d);
-	return 0;
+
+	return ret;
 }
 
-static void gpio_irq_shutdown(struct irq_data *d)
+static void gpio_irq_release_res(struct irq_data *d)
 {
 	struct at91_gpio_chip *at91_gpio = irq_data_get_irq_chip_data(d);
 	unsigned	pin = d->hwirq;
 
-	gpio_irq_mask(d);
 	gpiochip_unlock_as_irq(&at91_gpio->chip, pin);
 }
 
@@ -1577,8 +1574,8 @@ void at91_pinctrl_gpio_resume(void)
 static struct irq_chip gpio_irqchip = {
 	.name		= "GPIO",
 	.irq_ack	= gpio_irq_ack,
-	.irq_startup	= gpio_irq_startup,
-	.irq_shutdown	= gpio_irq_shutdown,
+	.irq_request_resources = gpio_irq_request_res,
+	.irq_release_resources = gpio_irq_release_res,
 	.irq_disable	= gpio_irq_mask,
 	.irq_mask	= gpio_irq_mask,
 	.irq_unmask	= gpio_irq_unmask,
diff --git a/drivers/pinctrl/sunxi/pinctrl-sun4i-a10.c b/drivers/pinctrl/sunxi/pinctrl-sun4i-a10.c
index 24c5d88..3c68a8e 100644
--- a/drivers/pinctrl/sunxi/pinctrl-sun4i-a10.c
+++ b/drivers/pinctrl/sunxi/pinctrl-sun4i-a10.c
@@ -1011,6 +1011,7 @@ static const struct sunxi_pinctrl_desc sun4i_a10_pinctrl_data = {
 	.pins = sun4i_a10_pins,
 	.npins = ARRAY_SIZE(sun4i_a10_pins),
 	.irq_banks = 1,
+	.irq_read_needs_mux = true,
 };
 
 static int sun4i_a10_pinctrl_probe(struct platform_device *pdev)
diff --git a/drivers/pinctrl/sunxi/pinctrl-sunxi.c b/drivers/pinctrl/sunxi/pinctrl-sunxi.c
index 3d07443..f8e171b 100644
--- a/drivers/pinctrl/sunxi/pinctrl-sunxi.c
+++ b/drivers/pinctrl/sunxi/pinctrl-sunxi.c
@@ -29,6 +29,7 @@
 #include <linux/slab.h>
 
 #include "../core.h"
+#include "../../gpio/gpiolib.h"
 #include "pinctrl-sunxi.h"
 
 static struct irq_chip sunxi_pinctrl_edge_irq_chip;
@@ -464,10 +465,19 @@ static int sunxi_pinctrl_gpio_direction_input(struct gpio_chip *chip,
 static int sunxi_pinctrl_gpio_get(struct gpio_chip *chip, unsigned offset)
 {
 	struct sunxi_pinctrl *pctl = dev_get_drvdata(chip->dev);
-
 	u32 reg = sunxi_data_reg(offset);
 	u8 index = sunxi_data_offset(offset);
-	u32 val = (readl(pctl->membase + reg) >> index) & DATA_PINS_MASK;
+	u32 set_mux = pctl->desc->irq_read_needs_mux &&
+			test_bit(FLAG_USED_AS_IRQ, &chip->desc[offset].flags);
+	u32 val;
+
+	if (set_mux)
+		sunxi_pmx_set(pctl->pctl_dev, offset, SUN4I_FUNC_INPUT);
+
+	val = (readl(pctl->membase + reg) >> index) & DATA_PINS_MASK;
+
+	if (set_mux)
+		sunxi_pmx_set(pctl->pctl_dev, offset, SUN4I_FUNC_IRQ);
 
 	return val;
 }
diff --git a/drivers/pinctrl/sunxi/pinctrl-sunxi.h b/drivers/pinctrl/sunxi/pinctrl-sunxi.h
index 5a51523..e248e81 100644
--- a/drivers/pinctrl/sunxi/pinctrl-sunxi.h
+++ b/drivers/pinctrl/sunxi/pinctrl-sunxi.h
@@ -77,6 +77,9 @@
 #define IRQ_LEVEL_LOW		0x03
 #define IRQ_EDGE_BOTH		0x04
 
+#define SUN4I_FUNC_INPUT	0
+#define SUN4I_FUNC_IRQ		6
+
 struct sunxi_desc_function {
 	const char	*name;
 	u8		muxval;
@@ -94,6 +97,7 @@ struct sunxi_pinctrl_desc {
 	int				npins;
 	unsigned			pin_base;
 	unsigned			irq_banks;
+	bool				irq_read_needs_mux;
 };
 
 struct sunxi_pinctrl_function {
diff --git a/drivers/platform/x86/compal-laptop.c b/drivers/platform/x86/compal-laptop.c
index 15c0fab..b4e9447 100644
--- a/drivers/platform/x86/compal-laptop.c
+++ b/drivers/platform/x86/compal-laptop.c
@@ -177,7 +177,7 @@ struct compal_data{
 	unsigned char curr_pwm;
 
 	/* Power supply */
-	struct power_supply psy;
+	struct power_supply *psy;
 	struct power_supply_info psy_info;
 	char bat_model_name[BAT_MODEL_NAME_LEN + 1];
 	char bat_manufacturer_name[BAT_MANUFACTURER_NAME_LEN + 1];
@@ -565,8 +565,7 @@ static int bat_get_property(struct power_supply *psy,
 				enum power_supply_property psp,
 				union power_supply_propval *val)
 {
-	struct compal_data *data;
-	data = container_of(psy, struct compal_data, psy);
+	struct compal_data *data = power_supply_get_drvdata(psy);
 
 	switch (psp) {
 	case POWER_SUPPLY_PROP_STATUS:
@@ -875,13 +874,16 @@ static struct dmi_system_id __initdata compal_dmi_table[] = {
 };
 MODULE_DEVICE_TABLE(dmi, compal_dmi_table);
 
+static const struct power_supply_desc psy_bat_desc = {
+	.name		= DRIVER_NAME,
+	.type		= POWER_SUPPLY_TYPE_BATTERY,
+	.properties	= compal_bat_properties,
+	.num_properties	= ARRAY_SIZE(compal_bat_properties),
+	.get_property	= bat_get_property,
+};
+
 static void initialize_power_supply_data(struct compal_data *data)
 {
-	data->psy.name = DRIVER_NAME;
-	data->psy.type = POWER_SUPPLY_TYPE_BATTERY;
-	data->psy.properties = compal_bat_properties;
-	data->psy.num_properties = ARRAY_SIZE(compal_bat_properties);
-	data->psy.get_property = bat_get_property;
 
 	ec_read_sequence(BAT_MANUFACTURER_NAME_ADDR,
 					data->bat_manufacturer_name,
@@ -1011,6 +1013,7 @@ static int compal_probe(struct platform_device *pdev)
 	int err;
 	struct compal_data *data;
 	struct device *hwmon_dev;
+	struct power_supply_config psy_cfg = {};
 
 	if (!extra_features)
 		return 0;
@@ -1026,9 +1029,9 @@ static int compal_probe(struct platform_device *pdev)
 	if (err)
 		return err;
 
-	hwmon_dev = hwmon_device_register_with_groups(&pdev->dev,
-						      "compal", data,
-						      compal_hwmon_groups);
+	hwmon_dev = devm_hwmon_device_register_with_groups(&pdev->dev,
+							   "compal", data,
+							   compal_hwmon_groups);
 	if (IS_ERR(hwmon_dev)) {
 		err = PTR_ERR(hwmon_dev);
 		goto remove;
@@ -1036,7 +1039,13 @@ static int compal_probe(struct platform_device *pdev)
 
 	/* Power supply */
 	initialize_power_supply_data(data);
-	power_supply_register(&compal_device->dev, &data->psy);
+	psy_cfg.drv_data = data;
+	data->psy = power_supply_register(&compal_device->dev, &psy_bat_desc,
+					  &psy_cfg);
+	if (IS_ERR(data->psy)) {
+		err = PTR_ERR(data->psy);
+		goto remove;
+	}
 
 	platform_set_drvdata(pdev, data);
 
@@ -1071,7 +1080,7 @@ static int compal_remove(struct platform_device *pdev)
 	pwm_disable_control();
 
 	data = platform_get_drvdata(pdev);
-	power_supply_unregister(&data->psy);
+	power_supply_unregister(data->psy);
 
 	sysfs_remove_group(&pdev->dev.kobj, &compal_platform_attr_group);
 
diff --git a/drivers/pnp/quirks.c b/drivers/pnp/quirks.c
index ebf0d67..943c1cb 100644
--- a/drivers/pnp/quirks.c
+++ b/drivers/pnp/quirks.c
@@ -246,13 +246,16 @@ static void quirk_system_pci_resources(struct pnp_dev *dev)
 	 */
 	for_each_pci_dev(pdev) {
 		for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) {
-			unsigned long type;
+			unsigned long flags, type;
 
-			type = pci_resource_flags(pdev, i) &
-					(IORESOURCE_IO | IORESOURCE_MEM);
+			flags = pci_resource_flags(pdev, i);
+			type = flags & (IORESOURCE_IO | IORESOURCE_MEM);
 			if (!type || pci_resource_len(pdev, i) == 0)
 				continue;
 
+			if (flags & IORESOURCE_UNSET)
+				continue;
+
 			pci_start = pci_resource_start(pdev, i);
 			pci_end = pci_resource_end(pdev, i);
 			for (j = 0;
diff --git a/drivers/power/88pm860x_battery.c b/drivers/power/88pm860x_battery.c
index bd3c997..d49579b 100644
--- a/drivers/power/88pm860x_battery.c
+++ b/drivers/power/88pm860x_battery.c
@@ -98,7 +98,7 @@ struct pm860x_battery_info {
 	struct i2c_client *i2c;
 	struct device *dev;
 
-	struct power_supply battery;
+	struct power_supply *battery;
 	struct mutex lock;
 	int status;
 	int irq_cc;
@@ -798,9 +798,8 @@ out:
 
 static void pm860x_external_power_changed(struct power_supply *psy)
 {
-	struct pm860x_battery_info *info;
+	struct pm860x_battery_info *info = dev_get_drvdata(psy->dev.parent);
 
-	info = container_of(psy, struct pm860x_battery_info, battery);
 	calc_resistor(info);
 }
 
@@ -808,7 +807,7 @@ static int pm860x_batt_get_prop(struct power_supply *psy,
 				enum power_supply_property psp,
 				union power_supply_propval *val)
 {
-	struct pm860x_battery_info *info = dev_get_drvdata(psy->dev->parent);
+	struct pm860x_battery_info *info = dev_get_drvdata(psy->dev.parent);
 	int data;
 	int ret;
 
@@ -874,7 +873,7 @@ static int pm860x_batt_set_prop(struct power_supply *psy,
 				       enum power_supply_property psp,
 				       const union power_supply_propval *val)
 {
-	struct pm860x_battery_info *info = dev_get_drvdata(psy->dev->parent);
+	struct pm860x_battery_info *info = dev_get_drvdata(psy->dev.parent);
 
 	switch (psp) {
 	case POWER_SUPPLY_PROP_CHARGE_FULL:
@@ -901,6 +900,16 @@ static enum power_supply_property pm860x_batt_props[] = {
 	POWER_SUPPLY_PROP_TEMP,
 };
 
+static const struct power_supply_desc pm860x_battery_desc = {
+	.name			= "battery-monitor",
+	.type			= POWER_SUPPLY_TYPE_BATTERY,
+	.properties		= pm860x_batt_props,
+	.num_properties		= ARRAY_SIZE(pm860x_batt_props),
+	.get_property		= pm860x_batt_get_prop,
+	.set_property		= pm860x_batt_set_prop,
+	.external_power_changed	= pm860x_external_power_changed,
+};
+
 static int pm860x_battery_probe(struct platform_device *pdev)
 {
 	struct pm860x_chip *chip = dev_get_drvdata(pdev->dev.parent);
@@ -936,14 +945,6 @@ static int pm860x_battery_probe(struct platform_device *pdev)
 
 	pm860x_init_battery(info);
 
-	info->battery.name = "battery-monitor";
-	info->battery.type = POWER_SUPPLY_TYPE_BATTERY;
-	info->battery.properties = pm860x_batt_props;
-	info->battery.num_properties = ARRAY_SIZE(pm860x_batt_props);
-	info->battery.get_property = pm860x_batt_get_prop;
-	info->battery.set_property = pm860x_batt_set_prop;
-	info->battery.external_power_changed = pm860x_external_power_changed;
-
 	if (pdata && pdata->max_capacity)
 		info->max_capacity = pdata->max_capacity;
 	else
@@ -953,10 +954,11 @@ static int pm860x_battery_probe(struct platform_device *pdev)
 	else
 		info->resistor = 300;	/* set default internal resistor */
 
-	ret = power_supply_register(&pdev->dev, &info->battery);
-	if (ret)
-		return ret;
-	info->battery.dev->parent = &pdev->dev;
+	info->battery = power_supply_register(&pdev->dev, &pm860x_battery_desc,
+					      NULL);
+	if (IS_ERR(info->battery))
+		return PTR_ERR(info->battery);
+	info->battery->dev.parent = &pdev->dev;
 
 	ret = request_threaded_irq(info->irq_cc, NULL,
 				pm860x_coulomb_handler, IRQF_ONESHOT,
@@ -981,7 +983,7 @@ static int pm860x_battery_probe(struct platform_device *pdev)
 out_coulomb:
 	free_irq(info->irq_cc, info);
 out_reg:
-	power_supply_unregister(&info->battery);
+	power_supply_unregister(info->battery);
 	return ret;
 }
 
@@ -991,7 +993,7 @@ static int pm860x_battery_remove(struct platform_device *pdev)
 
 	free_irq(info->irq_batt, info);
 	free_irq(info->irq_cc, info);
-	power_supply_unregister(&info->battery);
+	power_supply_unregister(info->battery);
 	return 0;
 }
 
diff --git a/drivers/power/88pm860x_charger.c b/drivers/power/88pm860x_charger.c
index 734ec4a..0e448c6 100644
--- a/drivers/power/88pm860x_charger.c
+++ b/drivers/power/88pm860x_charger.c
@@ -102,7 +102,7 @@ struct pm860x_charger_info {
 	struct i2c_client *i2c_8606;
 	struct device *dev;
 
-	struct power_supply usb;
+	struct power_supply *usb;
 	struct mutex lock;
 	int irq_nums;
 	int irq[7];
@@ -296,14 +296,20 @@ static int set_charging_fsm(struct pm860x_charger_info *info)
 	psy = power_supply_get_by_name(pm860x_supplied_to[0]);
 	if (!psy)
 		return -EINVAL;
-	ret = psy->get_property(psy, POWER_SUPPLY_PROP_VOLTAGE_NOW, &data);
-	if (ret)
+	ret = power_supply_get_property(psy, POWER_SUPPLY_PROP_VOLTAGE_NOW,
+			&data);
+	if (ret) {
+		power_supply_put(psy);
 		return ret;
+	}
 	vbatt = data.intval / 1000;
 
-	ret = psy->get_property(psy, POWER_SUPPLY_PROP_PRESENT, &data);
-	if (ret)
+	ret = power_supply_get_property(psy, POWER_SUPPLY_PROP_PRESENT, &data);
+	if (ret) {
+		power_supply_put(psy);
 		return ret;
+	}
+	power_supply_put(psy);
 
 	mutex_lock(&info->lock);
 	info->present = data.intval;
@@ -414,7 +420,7 @@ static irqreturn_t pm860x_charger_handler(int irq, void *data)
 
 	set_charging_fsm(info);
 
-	power_supply_changed(&info->usb);
+	power_supply_changed(info->usb);
 out:
 	return IRQ_HANDLED;
 }
@@ -430,7 +436,7 @@ static irqreturn_t pm860x_temp_handler(int irq, void *data)
 	psy = power_supply_get_by_name(pm860x_supplied_to[0]);
 	if (!psy)
 		goto out;
-	ret = psy->get_property(psy, POWER_SUPPLY_PROP_TEMP, &temp);
+	ret = power_supply_get_property(psy, POWER_SUPPLY_PROP_TEMP, &temp);
 	if (ret)
 		goto out;
 	value = temp.intval / 10;
@@ -446,6 +452,7 @@ static irqreturn_t pm860x_temp_handler(int irq, void *data)
 
 	set_charging_fsm(info);
 out:
+	power_supply_put(psy);
 	return IRQ_HANDLED;
 }
 
@@ -485,9 +492,10 @@ static irqreturn_t pm860x_done_handler(int irq, void *data)
 	psy = power_supply_get_by_name(pm860x_supplied_to[0]);
 	if (!psy)
 		goto out;
-	ret = psy->get_property(psy, POWER_SUPPLY_PROP_VOLTAGE_NOW, &val);
+	ret = power_supply_get_property(psy, POWER_SUPPLY_PROP_VOLTAGE_NOW,
+			&val);
 	if (ret)
-		goto out;
+		goto out_psy_put;
 	vbatt = val.intval / 1000;
 	/*
 	 * CHG_DONE interrupt is faster than CHG_DET interrupt when
@@ -498,10 +506,13 @@ static irqreturn_t pm860x_done_handler(int irq, void *data)
 	 */
 	ret = pm860x_reg_read(info->i2c, PM8607_STATUS_2);
 	if (ret < 0)
-		goto out;
+		goto out_psy_put;
 	if (vbatt > CHARGE_THRESHOLD && ret & STATUS2_CHG)
-		psy->set_property(psy, POWER_SUPPLY_PROP_CHARGE_FULL, &val);
+		power_supply_set_property(psy, POWER_SUPPLY_PROP_CHARGE_FULL,
+				&val);
 
+out_psy_put:
+	power_supply_put(psy);
 out:
 	mutex_unlock(&info->lock);
 	dev_dbg(info->dev, "%s, Allowed: %d\n", __func__, info->allowed);
@@ -584,8 +595,7 @@ static int pm860x_usb_get_prop(struct power_supply *psy,
 			       enum power_supply_property psp,
 			       union power_supply_propval *val)
 {
-	struct pm860x_charger_info *info =
-	    dev_get_drvdata(psy->dev->parent);
+	struct pm860x_charger_info *info = power_supply_get_drvdata(psy);
 
 	switch (psp) {
 	case POWER_SUPPLY_PROP_STATUS:
@@ -645,9 +655,18 @@ static struct pm860x_irq_desc {
 	{ "vchg", pm860x_vchg_handler },
 };
 
+static const struct power_supply_desc pm860x_charger_desc = {
+	.name		= "usb",
+	.type		= POWER_SUPPLY_TYPE_USB,
+	.properties	= pm860x_usb_props,
+	.num_properties	= ARRAY_SIZE(pm860x_usb_props),
+	.get_property	= pm860x_usb_get_prop,
+};
+
 static int pm860x_charger_probe(struct platform_device *pdev)
 {
 	struct pm860x_chip *chip = dev_get_drvdata(pdev->dev.parent);
+	struct power_supply_config psy_cfg = {};
 	struct pm860x_charger_info *info;
 	int ret;
 	int count;
@@ -685,16 +704,15 @@ static int pm860x_charger_probe(struct platform_device *pdev)
 	mutex_init(&info->lock);
 	platform_set_drvdata(pdev, info);
 
-	info->usb.name = "usb";
-	info->usb.type = POWER_SUPPLY_TYPE_USB;
-	info->usb.supplied_to = pm860x_supplied_to;
-	info->usb.num_supplicants = ARRAY_SIZE(pm860x_supplied_to);
-	info->usb.properties = pm860x_usb_props;
-	info->usb.num_properties = ARRAY_SIZE(pm860x_usb_props);
-	info->usb.get_property = pm860x_usb_get_prop;
-	ret = power_supply_register(&pdev->dev, &info->usb);
-	if (ret)
+	psy_cfg.drv_data = info;
+	psy_cfg.supplied_to = pm860x_supplied_to;
+	psy_cfg.num_supplicants = ARRAY_SIZE(pm860x_supplied_to);
+	info->usb = power_supply_register(&pdev->dev, &pm860x_charger_desc,
+					  &psy_cfg);
+	if (IS_ERR(info->usb)) {
+		ret = PTR_ERR(info->usb);
 		goto out;
+	}
 
 	pm860x_init_charger(info);
 
@@ -711,7 +729,7 @@ static int pm860x_charger_probe(struct platform_device *pdev)
 	return 0;
 
 out_irq:
-	power_supply_unregister(&info->usb);
+	power_supply_unregister(info->usb);
 	while (--i >= 0)
 		free_irq(info->irq[i], info);
 out:
@@ -723,7 +741,7 @@ static int pm860x_charger_remove(struct platform_device *pdev)
 	struct pm860x_charger_info *info = platform_get_drvdata(pdev);
 	int i;
 
-	power_supply_unregister(&info->usb);
+	power_supply_unregister(info->usb);
 	free_irq(info->irq[0], info);
 	for (i = 0; i < info->irq_nums; i++)
 		free_irq(info->irq[i], info);
diff --git a/drivers/power/Kconfig b/drivers/power/Kconfig
index 27b751b..4091fb0 100644
--- a/drivers/power/Kconfig
+++ b/drivers/power/Kconfig
@@ -192,6 +192,27 @@ config BATTERY_DA9052
 	  Say Y here to enable support for batteries charger integrated into
 	  DA9052 PMIC.
 
+config CHARGER_DA9150
+	tristate "Dialog Semiconductor DA9150 Charger support"
+	depends on MFD_DA9150
+	depends on DA9150_GPADC
+	depends on IIO
+	help
+	  Say Y here to enable support for charger unit of the DA9150
+	  Integrated Charger & Fuel-Gauge IC.
+
+	  This driver can also be built as a module. If so, the module will be
+	  called da9150-charger.
+
+config AXP288_FUEL_GAUGE
+	tristate "X-Powers AXP288 Fuel Gauge"
+	depends on MFD_AXP20X && IIO
+	help
+	  Say yes here to have support for X-Power power management IC (PMIC)
+	  Fuel Gauge. The device provides battery statistics and status
+	  monitoring as well as alerts for battery over/under voltage and
+	  over/under temperature.
+
 config BATTERY_MAX17040
 	tristate "Maxim MAX17040 Fuel Gauge"
 	depends on I2C
diff --git a/drivers/power/Makefile b/drivers/power/Makefile
index 36f9e0d..b7b0181 100644
--- a/drivers/power/Makefile
+++ b/drivers/power/Makefile
@@ -1,4 +1,4 @@
-ccflags-$(CONFIG_POWER_SUPPLY_DEBUG) := -DDEBUG
+subdir-ccflags-$(CONFIG_POWER_SUPPLY_DEBUG) := -DDEBUG
 
 power_supply-y				:= power_supply_core.o
 power_supply-$(CONFIG_SYSFS)		+= power_supply_sysfs.o
@@ -32,6 +32,7 @@ obj-$(CONFIG_BATTERY_SBS)	+= sbs-battery.o
 obj-$(CONFIG_BATTERY_BQ27x00)	+= bq27x00_battery.o
 obj-$(CONFIG_BATTERY_DA9030)	+= da9030_battery.o
 obj-$(CONFIG_BATTERY_DA9052)	+= da9052-battery.o
+obj-$(CONFIG_CHARGER_DA9150)	+= da9150-charger.o
 obj-$(CONFIG_BATTERY_MAX17040)	+= max17040_battery.o
 obj-$(CONFIG_BATTERY_MAX17042)	+= max17042_battery.o
 obj-$(CONFIG_BATTERY_Z2)	+= z2_battery.o
@@ -62,3 +63,4 @@ obj-$(CONFIG_POWER_AVS)		+= avs/
 obj-$(CONFIG_CHARGER_SMB347)	+= smb347-charger.o
 obj-$(CONFIG_CHARGER_TPS65090)	+= tps65090-charger.o
 obj-$(CONFIG_POWER_RESET)	+= reset/
+obj-$(CONFIG_AXP288_FUEL_GAUGE) += axp288_fuel_gauge.o
diff --git a/drivers/power/ab8500_btemp.c b/drivers/power/ab8500_btemp.c
index 4ebf7b0..8f8044e 100644
--- a/drivers/power/ab8500_btemp.c
+++ b/drivers/power/ab8500_btemp.c
@@ -45,9 +45,6 @@
 #define BTEMP_BATCTRL_CURR_SRC_60UA	60
 #define BTEMP_BATCTRL_CURR_SRC_120UA	120
 
-#define to_ab8500_btemp_device_info(x) container_of((x), \
-	struct ab8500_btemp, btemp_psy);
-
 /**
  * struct ab8500_btemp_interrupts - ab8500 interrupts
  * @name:	name of the interrupt
@@ -102,7 +99,7 @@ struct ab8500_btemp {
 	struct ab8500_gpadc *gpadc;
 	struct ab8500_fg *fg;
 	struct abx500_bm_data *bm;
-	struct power_supply btemp_psy;
+	struct power_supply *btemp_psy;
 	struct ab8500_btemp_events events;
 	struct ab8500_btemp_ranges btemp_ranges;
 	struct workqueue_struct *btemp_wq;
@@ -654,14 +651,14 @@ static void ab8500_btemp_periodic_work(struct work_struct *work)
 		if ((di->bat_temp != di->prev_bat_temp) || !di->initialized) {
 			di->initialized = true;
 			di->bat_temp = bat_temp;
-			power_supply_changed(&di->btemp_psy);
+			power_supply_changed(di->btemp_psy);
 		}
 	} else if (bat_temp < di->prev_bat_temp) {
 		di->bat_temp--;
-		power_supply_changed(&di->btemp_psy);
+		power_supply_changed(di->btemp_psy);
 	} else if (bat_temp > di->prev_bat_temp) {
 		di->bat_temp++;
-		power_supply_changed(&di->btemp_psy);
+		power_supply_changed(di->btemp_psy);
 	}
 	di->prev_bat_temp = bat_temp;
 
@@ -689,7 +686,7 @@ static irqreturn_t ab8500_btemp_batctrlindb_handler(int irq, void *_di)
 	dev_err(di->dev, "Battery removal detected!\n");
 
 	di->events.batt_rem = true;
-	power_supply_changed(&di->btemp_psy);
+	power_supply_changed(di->btemp_psy);
 
 	return IRQ_HANDLED;
 }
@@ -715,7 +712,7 @@ static irqreturn_t ab8500_btemp_templow_handler(int irq, void *_di)
 		di->events.btemp_high = false;
 		di->events.btemp_medhigh = false;
 		di->events.btemp_lowmed = false;
-		power_supply_changed(&di->btemp_psy);
+		power_supply_changed(di->btemp_psy);
 	}
 
 	return IRQ_HANDLED;
@@ -738,7 +735,7 @@ static irqreturn_t ab8500_btemp_temphigh_handler(int irq, void *_di)
 	di->events.btemp_medhigh = false;
 	di->events.btemp_lowmed = false;
 	di->events.btemp_low = false;
-	power_supply_changed(&di->btemp_psy);
+	power_supply_changed(di->btemp_psy);
 
 	return IRQ_HANDLED;
 }
@@ -760,7 +757,7 @@ static irqreturn_t ab8500_btemp_lowmed_handler(int irq, void *_di)
 	di->events.btemp_medhigh = false;
 	di->events.btemp_high = false;
 	di->events.btemp_low = false;
-	power_supply_changed(&di->btemp_psy);
+	power_supply_changed(di->btemp_psy);
 
 	return IRQ_HANDLED;
 }
@@ -782,7 +779,7 @@ static irqreturn_t ab8500_btemp_medhigh_handler(int irq, void *_di)
 	di->events.btemp_lowmed = false;
 	di->events.btemp_high = false;
 	di->events.btemp_low = false;
-	power_supply_changed(&di->btemp_psy);
+	power_supply_changed(di->btemp_psy);
 
 	return IRQ_HANDLED;
 }
@@ -884,9 +881,7 @@ static int ab8500_btemp_get_property(struct power_supply *psy,
 	enum power_supply_property psp,
 	union power_supply_propval *val)
 {
-	struct ab8500_btemp *di;
-
-	di = to_ab8500_btemp_device_info(psy);
+	struct ab8500_btemp *di = power_supply_get_drvdata(psy);
 
 	switch (psp) {
 	case POWER_SUPPLY_PROP_PRESENT:
@@ -919,14 +914,14 @@ static int ab8500_btemp_get_ext_psy_data(struct device *dev, void *data)
 
 	psy = (struct power_supply *)data;
 	ext = dev_get_drvdata(dev);
-	di = to_ab8500_btemp_device_info(psy);
+	di = power_supply_get_drvdata(psy);
 
 	/*
 	 * For all psy where the name of your driver
 	 * appears in any supplied_to
 	 */
 	for (i = 0; i < ext->num_supplicants; i++) {
-		if (!strcmp(ext->supplied_to[i], psy->name))
+		if (!strcmp(ext->supplied_to[i], psy->desc->name))
 			psy_found = true;
 	}
 
@@ -934,16 +929,16 @@ static int ab8500_btemp_get_ext_psy_data(struct device *dev, void *data)
 		return 0;
 
 	/* Go through all properties for the psy */
-	for (j = 0; j < ext->num_properties; j++) {
+	for (j = 0; j < ext->desc->num_properties; j++) {
 		enum power_supply_property prop;
-		prop = ext->properties[j];
+		prop = ext->desc->properties[j];
 
-		if (ext->get_property(ext, prop, &ret))
+		if (power_supply_get_property(ext, prop, &ret))
 			continue;
 
 		switch (prop) {
 		case POWER_SUPPLY_PROP_PRESENT:
-			switch (ext->type) {
+			switch (ext->desc->type) {
 			case POWER_SUPPLY_TYPE_MAINS:
 				/* AC disconnected */
 				if (!ret.intval && di->events.ac_conn) {
@@ -990,10 +985,10 @@ static int ab8500_btemp_get_ext_psy_data(struct device *dev, void *data)
  */
 static void ab8500_btemp_external_power_changed(struct power_supply *psy)
 {
-	struct ab8500_btemp *di = to_ab8500_btemp_device_info(psy);
+	struct ab8500_btemp *di = power_supply_get_drvdata(psy);
 
 	class_for_each_device(power_supply_class, NULL,
-		&di->btemp_psy, ab8500_btemp_get_ext_psy_data);
+		di->btemp_psy, ab8500_btemp_get_ext_psy_data);
 }
 
 /* ab8500 btemp driver interrupts and their respective isr */
@@ -1044,7 +1039,7 @@ static int ab8500_btemp_remove(struct platform_device *pdev)
 	destroy_workqueue(di->btemp_wq);
 
 	flush_scheduled_work();
-	power_supply_unregister(&di->btemp_psy);
+	power_supply_unregister(di->btemp_psy);
 
 	return 0;
 }
@@ -1054,10 +1049,20 @@ static char *supply_interface[] = {
 	"ab8500_fg",
 };
 
+static const struct power_supply_desc ab8500_btemp_desc = {
+	.name			= "ab8500_btemp",
+	.type			= POWER_SUPPLY_TYPE_BATTERY,
+	.properties		= ab8500_btemp_props,
+	.num_properties		= ARRAY_SIZE(ab8500_btemp_props),
+	.get_property		= ab8500_btemp_get_property,
+	.external_power_changed	= ab8500_btemp_external_power_changed,
+};
+
 static int ab8500_btemp_probe(struct platform_device *pdev)
 {
 	struct device_node *np = pdev->dev.of_node;
 	struct abx500_bm_data *plat = pdev->dev.platform_data;
+	struct power_supply_config psy_cfg = {};
 	struct ab8500_btemp *di;
 	int irq, i, ret = 0;
 	u8 val;
@@ -1089,17 +1094,9 @@ static int ab8500_btemp_probe(struct platform_device *pdev)
 
 	di->initialized = false;
 
-	/* BTEMP supply */
-	di->btemp_psy.name = "ab8500_btemp";
-	di->btemp_psy.type = POWER_SUPPLY_TYPE_BATTERY;
-	di->btemp_psy.properties = ab8500_btemp_props;
-	di->btemp_psy.num_properties = ARRAY_SIZE(ab8500_btemp_props);
-	di->btemp_psy.get_property = ab8500_btemp_get_property;
-	di->btemp_psy.supplied_to = supply_interface;
-	di->btemp_psy.num_supplicants = ARRAY_SIZE(supply_interface);
-	di->btemp_psy.external_power_changed =
-		ab8500_btemp_external_power_changed;
-
+	psy_cfg.supplied_to = supply_interface;
+	psy_cfg.num_supplicants = ARRAY_SIZE(supply_interface);
+	psy_cfg.drv_data = di;
 
 	/* Create a work queue for the btemp */
 	di->btemp_wq =
@@ -1140,9 +1137,11 @@ static int ab8500_btemp_probe(struct platform_device *pdev)
 	}
 
 	/* Register BTEMP power supply class */
-	ret = power_supply_register(di->dev, &di->btemp_psy);
-	if (ret) {
+	di->btemp_psy = power_supply_register(di->dev, &ab8500_btemp_desc,
+					      &psy_cfg);
+	if (IS_ERR(di->btemp_psy)) {
 		dev_err(di->dev, "failed to register BTEMP psy\n");
+		ret = PTR_ERR(di->btemp_psy);
 		goto free_btemp_wq;
 	}
 
@@ -1171,7 +1170,7 @@ static int ab8500_btemp_probe(struct platform_device *pdev)
 	return ret;
 
 free_irq:
-	power_supply_unregister(&di->btemp_psy);
+	power_supply_unregister(di->btemp_psy);
 
 	/* We also have to free all successfully registered irqs */
 	for (i = i - 1; i >= 0; i--) {
diff --git a/drivers/power/ab8500_charger.c b/drivers/power/ab8500_charger.c
index 8c8d170..e388171 100644
--- a/drivers/power/ab8500_charger.c
+++ b/drivers/power/ab8500_charger.c
@@ -435,7 +435,7 @@ static void ab8500_charger_set_usb_connected(struct ab8500_charger *di,
 		if (!connected)
 			di->flags.vbus_drop_end = false;
 
-		sysfs_notify(&di->usb_chg.psy.dev->kobj, NULL, "present");
+		sysfs_notify(&di->usb_chg.psy->dev.kobj, NULL, "present");
 
 		if (connected) {
 			mutex_lock(&di->charger_attached_mutex);
@@ -1516,7 +1516,7 @@ static int ab8500_charger_ac_en(struct ux500_charger *charger,
 
 		dev_dbg(di->dev, "%s Disabled AC charging\n", __func__);
 	}
-	ab8500_power_supply_changed(di, &di->ac_chg.psy);
+	ab8500_power_supply_changed(di, di->ac_chg.psy);
 
 	return ret;
 }
@@ -1672,7 +1672,7 @@ static int ab8500_charger_usb_en(struct ux500_charger *charger,
 		cancel_delayed_work(&di->check_vbat_work);
 
 	}
-	ab8500_power_supply_changed(di, &di->usb_chg.psy);
+	ab8500_power_supply_changed(di, di->usb_chg.psy);
 
 	return ret;
 }
@@ -1811,9 +1811,9 @@ static int ab8500_charger_watchdog_kick(struct ux500_charger *charger)
 	int ret;
 	struct ab8500_charger *di;
 
-	if (charger->psy.type == POWER_SUPPLY_TYPE_MAINS)
+	if (charger->psy->desc->type == POWER_SUPPLY_TYPE_MAINS)
 		di = to_ab8500_charger_ac_device_info(charger);
-	else if (charger->psy.type == POWER_SUPPLY_TYPE_USB)
+	else if (charger->psy->desc->type == POWER_SUPPLY_TYPE_USB)
 		di = to_ab8500_charger_usb_device_info(charger);
 	else
 		return -ENXIO;
@@ -1839,9 +1839,9 @@ static int ab8500_charger_update_charger_current(struct ux500_charger *charger,
 	int ret;
 	struct ab8500_charger *di;
 
-	if (charger->psy.type == POWER_SUPPLY_TYPE_MAINS)
+	if (charger->psy->desc->type == POWER_SUPPLY_TYPE_MAINS)
 		di = to_ab8500_charger_ac_device_info(charger);
-	else if (charger->psy.type == POWER_SUPPLY_TYPE_USB)
+	else if (charger->psy->desc->type == POWER_SUPPLY_TYPE_USB)
 		di = to_ab8500_charger_usb_device_info(charger);
 	else
 		return -ENXIO;
@@ -1879,7 +1879,7 @@ static int ab8540_charger_power_path_enable(struct ux500_charger *charger,
 	int ret;
 	struct ab8500_charger *di;
 
-	if (charger->psy.type == POWER_SUPPLY_TYPE_USB)
+	if (charger->psy->desc->type == POWER_SUPPLY_TYPE_USB)
 		di = to_ab8500_charger_usb_device_info(charger);
 	else
 		return -ENXIO;
@@ -1910,7 +1910,7 @@ static int ab8540_charger_usb_pre_chg_enable(struct ux500_charger *charger,
 	int ret;
 	struct ab8500_charger *di;
 
-	if (charger->psy.type == POWER_SUPPLY_TYPE_USB)
+	if (charger->psy->desc->type == POWER_SUPPLY_TYPE_USB)
 		di = to_ab8500_charger_usb_device_info(charger);
 	else
 		return -ENXIO;
@@ -1937,7 +1937,7 @@ static int ab8500_charger_get_ext_psy_data(struct device *dev, void *data)
 	struct ux500_charger *usb_chg;
 
 	usb_chg = (struct ux500_charger *)data;
-	psy = &usb_chg->psy;
+	psy = usb_chg->psy;
 
 	di = to_ab8500_charger_usb_device_info(usb_chg);
 
@@ -1945,7 +1945,7 @@ static int ab8500_charger_get_ext_psy_data(struct device *dev, void *data)
 
 	/* For all psy where the driver name appears in any supplied_to */
 	for (i = 0; i < ext->num_supplicants; i++) {
-		if (!strcmp(ext->supplied_to[i], psy->name))
+		if (!strcmp(ext->supplied_to[i], psy->desc->name))
 			psy_found = true;
 	}
 
@@ -1953,16 +1953,16 @@ static int ab8500_charger_get_ext_psy_data(struct device *dev, void *data)
 		return 0;
 
 	/* Go through all properties for the psy */
-	for (j = 0; j < ext->num_properties; j++) {
+	for (j = 0; j < ext->desc->num_properties; j++) {
 		enum power_supply_property prop;
-		prop = ext->properties[j];
+		prop = ext->desc->properties[j];
 
-		if (ext->get_property(ext, prop, &ret))
+		if (power_supply_get_property(ext, prop, &ret))
 			continue;
 
 		switch (prop) {
 		case POWER_SUPPLY_PROP_VOLTAGE_NOW:
-			switch (ext->type) {
+			switch (ext->desc->type) {
 			case POWER_SUPPLY_TYPE_BATTERY:
 				di->vbat = ret.intval / 1000;
 				break;
@@ -1993,7 +1993,7 @@ static void ab8500_charger_check_vbat_work(struct work_struct *work)
 		struct ab8500_charger, check_vbat_work.work);
 
 	class_for_each_device(power_supply_class, NULL,
-		&di->usb_chg.psy, ab8500_charger_get_ext_psy_data);
+		di->usb_chg.psy, ab8500_charger_get_ext_psy_data);
 
 	/* First run old_vbat is 0. */
 	if (di->old_vbat == 0)
@@ -2009,7 +2009,7 @@ static void ab8500_charger_check_vbat_work(struct work_struct *work)
 			di->vbat, di->old_vbat);
 		ab8500_charger_set_vbus_in_curr(di,
 					di->max_usb_in_curr.usb_type_max);
-		power_supply_changed(&di->usb_chg.psy);
+		power_supply_changed(di->usb_chg.psy);
 	}
 
 	di->old_vbat = di->vbat;
@@ -2049,7 +2049,7 @@ static void ab8500_charger_check_hw_failure_work(struct work_struct *work)
 		}
 		if (!(reg_value & MAIN_CH_NOK)) {
 			di->flags.mainextchnotok = false;
-			ab8500_power_supply_changed(di, &di->ac_chg.psy);
+			ab8500_power_supply_changed(di, di->ac_chg.psy);
 		}
 	}
 	if (di->flags.vbus_ovv) {
@@ -2062,7 +2062,7 @@ static void ab8500_charger_check_hw_failure_work(struct work_struct *work)
 		}
 		if (!(reg_value & VBUS_OVV_TH)) {
 			di->flags.vbus_ovv = false;
-			ab8500_power_supply_changed(di, &di->usb_chg.psy);
+			ab8500_power_supply_changed(di, di->usb_chg.psy);
 		}
 	}
 	/* If we still have a failure, schedule a new check */
@@ -2132,8 +2132,8 @@ static void ab8500_charger_ac_work(struct work_struct *work)
 		di->ac.charger_connected = 0;
 	}
 
-	ab8500_power_supply_changed(di, &di->ac_chg.psy);
-	sysfs_notify(&di->ac_chg.psy.dev->kobj, NULL, "present");
+	ab8500_power_supply_changed(di, di->ac_chg.psy);
+	sysfs_notify(&di->ac_chg.psy->dev.kobj, NULL, "present");
 }
 
 static void ab8500_charger_usb_attached_work(struct work_struct *work)
@@ -2240,7 +2240,7 @@ static void ab8500_charger_detect_usb_type_work(struct work_struct *work)
 		dev_dbg(di->dev, "%s di->vbus_detected = false\n", __func__);
 		di->vbus_detected = false;
 		ab8500_charger_set_usb_connected(di, false);
-		ab8500_power_supply_changed(di, &di->usb_chg.psy);
+		ab8500_power_supply_changed(di, di->usb_chg.psy);
 	} else {
 		dev_dbg(di->dev, "%s di->vbus_detected = true\n", __func__);
 		di->vbus_detected = true;
@@ -2250,7 +2250,7 @@ static void ab8500_charger_detect_usb_type_work(struct work_struct *work)
 			if (!ret) {
 				ab8500_charger_set_usb_connected(di, true);
 				ab8500_power_supply_changed(di,
-							    &di->usb_chg.psy);
+							    di->usb_chg.psy);
 			}
 		} else {
 			/*
@@ -2267,7 +2267,7 @@ static void ab8500_charger_detect_usb_type_work(struct work_struct *work)
 					ab8500_charger_set_usb_connected(di,
 						true);
 					ab8500_power_supply_changed(di,
-						&di->usb_chg.psy);
+						di->usb_chg.psy);
 				}
 			}
 		}
@@ -2295,7 +2295,7 @@ static void ab8500_charger_usb_link_attach_work(struct work_struct *work)
 	}
 
 	ab8500_charger_set_usb_connected(di, true);
-	ab8500_power_supply_changed(di, &di->usb_chg.psy);
+	ab8500_power_supply_changed(di, di->usb_chg.psy);
 }
 
 /**
@@ -2393,7 +2393,7 @@ static void ab8500_charger_usb_link_status_work(struct work_struct *work)
 	if (!(detected_chargers & USB_PW_CONN)) {
 		di->vbus_detected = false;
 		ab8500_charger_set_usb_connected(di, false);
-		ab8500_power_supply_changed(di, &di->usb_chg.psy);
+		ab8500_power_supply_changed(di, di->usb_chg.psy);
 		return;
 	}
 
@@ -2404,7 +2404,7 @@ static void ab8500_charger_usb_link_status_work(struct work_struct *work)
 		if (ret == -ENXIO) {
 			/* No valid charger type detected */
 			ab8500_charger_set_usb_connected(di, false);
-			ab8500_power_supply_changed(di, &di->usb_chg.psy);
+			ab8500_power_supply_changed(di, di->usb_chg.psy);
 		}
 		return;
 	}
@@ -2463,7 +2463,7 @@ static void ab8500_charger_usb_state_changed_work(struct work_struct *work)
 	case AB8500_BM_USB_STATE_SUSPEND:
 	case AB8500_BM_USB_STATE_MAX:
 		ab8500_charger_set_usb_connected(di, false);
-		ab8500_power_supply_changed(di, &di->usb_chg.psy);
+		ab8500_power_supply_changed(di, di->usb_chg.psy);
 		break;
 
 	case AB8500_BM_USB_STATE_RESUME:
@@ -2486,7 +2486,7 @@ static void ab8500_charger_usb_state_changed_work(struct work_struct *work)
 				return;
 
 			ab8500_charger_set_usb_connected(di, true);
-			ab8500_power_supply_changed(di, &di->usb_chg.psy);
+			ab8500_power_supply_changed(di, di->usb_chg.psy);
 		}
 		break;
 
@@ -2530,7 +2530,7 @@ static void ab8500_charger_check_usbchargernotok_work(struct work_struct *work)
 	}
 
 	if (prev_status != di->flags.usbchargernotok)
-		ab8500_power_supply_changed(di, &di->usb_chg.psy);
+		ab8500_power_supply_changed(di, di->usb_chg.psy);
 }
 
 /**
@@ -2560,7 +2560,7 @@ static void ab8500_charger_check_main_thermal_prot_work(
 	else
 		di->flags.main_thermal_prot = false;
 
-	ab8500_power_supply_changed(di, &di->ac_chg.psy);
+	ab8500_power_supply_changed(di, di->ac_chg.psy);
 }
 
 /**
@@ -2590,7 +2590,7 @@ static void ab8500_charger_check_usb_thermal_prot_work(
 	else
 		di->flags.usb_thermal_prot = false;
 
-	ab8500_power_supply_changed(di, &di->usb_chg.psy);
+	ab8500_power_supply_changed(di, di->usb_chg.psy);
 }
 
 /**
@@ -2651,7 +2651,7 @@ static irqreturn_t ab8500_charger_mainextchnotok_handler(int irq, void *_di)
 
 	dev_dbg(di->dev, "Main charger not ok\n");
 	di->flags.mainextchnotok = true;
-	ab8500_power_supply_changed(di, &di->ac_chg.psy);
+	ab8500_power_supply_changed(di, di->ac_chg.psy);
 
 	/* Schedule a new HW failure check */
 	queue_delayed_work(di->charger_wq, &di->check_hw_failure_work, 0);
@@ -2880,11 +2880,11 @@ static irqreturn_t ab8500_charger_chwdexp_handler(int irq, void *_di)
 	 */
 	if (di->ac.charger_online) {
 		di->ac.wd_expired = true;
-		ab8500_power_supply_changed(di, &di->ac_chg.psy);
+		ab8500_power_supply_changed(di, di->ac_chg.psy);
 	}
 	if (di->usb.charger_online) {
 		di->usb.wd_expired = true;
-		ab8500_power_supply_changed(di, &di->usb_chg.psy);
+		ab8500_power_supply_changed(di, di->usb_chg.psy);
 	}
 
 	return IRQ_HANDLED;
@@ -2927,7 +2927,7 @@ static irqreturn_t ab8500_charger_vbusovv_handler(int irq, void *_di)
 
 	dev_dbg(di->dev, "VBUS overvoltage detected\n");
 	di->flags.vbus_ovv = true;
-	ab8500_power_supply_changed(di, &di->usb_chg.psy);
+	ab8500_power_supply_changed(di, di->usb_chg.psy);
 
 	/* Schedule a new HW failure check */
 	queue_delayed_work(di->charger_wq, &di->check_hw_failure_work, 0);
@@ -3428,10 +3428,10 @@ static int ab8500_charger_remove(struct platform_device *pdev)
 
 	flush_scheduled_work();
 	if (di->usb_chg.enabled)
-		power_supply_unregister(&di->usb_chg.psy);
+		power_supply_unregister(di->usb_chg.psy);
 
 	if (di->ac_chg.enabled && !di->ac_chg.external)
-		power_supply_unregister(&di->ac_chg.psy);
+		power_supply_unregister(di->ac_chg.psy);
 
 	return 0;
 }
@@ -3442,10 +3442,27 @@ static char *supply_interface[] = {
 	"ab8500_btemp",
 };
 
+static const struct power_supply_desc ab8500_ac_chg_desc = {
+	.name		= "ab8500_ac",
+	.type		= POWER_SUPPLY_TYPE_MAINS,
+	.properties	= ab8500_charger_ac_props,
+	.num_properties	= ARRAY_SIZE(ab8500_charger_ac_props),
+	.get_property	= ab8500_charger_ac_get_property,
+};
+
+static const struct power_supply_desc ab8500_usb_chg_desc = {
+	.name		= "ab8500_usb",
+	.type		= POWER_SUPPLY_TYPE_USB,
+	.properties	= ab8500_charger_usb_props,
+	.num_properties	= ARRAY_SIZE(ab8500_charger_usb_props),
+	.get_property	= ab8500_charger_usb_get_property,
+};
+
 static int ab8500_charger_probe(struct platform_device *pdev)
 {
 	struct device_node *np = pdev->dev.of_node;
 	struct abx500_bm_data *plat = pdev->dev.platform_data;
+	struct power_supply_config ac_psy_cfg = {}, usb_psy_cfg = {};
 	struct ab8500_charger *di;
 	int irq, i, charger_status, ret = 0, ch_stat;
 
@@ -3483,15 +3500,15 @@ static int ab8500_charger_probe(struct platform_device *pdev)
 	di->autopower = false;
 	di->invalid_charger_detect_state = 0;
 
+	/* AC and USB supply config */
+	ac_psy_cfg.supplied_to = supply_interface;
+	ac_psy_cfg.num_supplicants = ARRAY_SIZE(supply_interface);
+	ac_psy_cfg.drv_data = &di->ac_chg;
+	usb_psy_cfg.supplied_to = supply_interface;
+	usb_psy_cfg.num_supplicants = ARRAY_SIZE(supply_interface);
+	usb_psy_cfg.drv_data = &di->usb_chg;
+
 	/* AC supply */
-	/* power_supply base class */
-	di->ac_chg.psy.name = "ab8500_ac";
-	di->ac_chg.psy.type = POWER_SUPPLY_TYPE_MAINS;
-	di->ac_chg.psy.properties = ab8500_charger_ac_props;
-	di->ac_chg.psy.num_properties = ARRAY_SIZE(ab8500_charger_ac_props);
-	di->ac_chg.psy.get_property = ab8500_charger_ac_get_property;
-	di->ac_chg.psy.supplied_to = supply_interface;
-	di->ac_chg.psy.num_supplicants = ARRAY_SIZE(supply_interface),
 	/* ux500_charger sub-class */
 	di->ac_chg.ops.enable = &ab8500_charger_ac_en;
 	di->ac_chg.ops.check_enable = &ab8500_charger_ac_check_enable;
@@ -3511,14 +3528,6 @@ static int ab8500_charger_probe(struct platform_device *pdev)
 			&charger_notifier_list, &charger_nb);
 
 	/* USB supply */
-	/* power_supply base class */
-	di->usb_chg.psy.name = "ab8500_usb";
-	di->usb_chg.psy.type = POWER_SUPPLY_TYPE_USB;
-	di->usb_chg.psy.properties = ab8500_charger_usb_props;
-	di->usb_chg.psy.num_properties = ARRAY_SIZE(ab8500_charger_usb_props);
-	di->usb_chg.psy.get_property = ab8500_charger_usb_get_property;
-	di->usb_chg.psy.supplied_to = supply_interface;
-	di->usb_chg.psy.num_supplicants = ARRAY_SIZE(supply_interface),
 	/* ux500_charger sub-class */
 	di->usb_chg.ops.enable = &ab8500_charger_usb_en;
 	di->usb_chg.ops.check_enable = &ab8500_charger_usb_check_enable;
@@ -3616,18 +3625,24 @@ static int ab8500_charger_probe(struct platform_device *pdev)
 
 	/* Register AC charger class */
 	if (di->ac_chg.enabled) {
-		ret = power_supply_register(di->dev, &di->ac_chg.psy);
-		if (ret) {
+		di->ac_chg.psy = power_supply_register(di->dev,
+						       &ab8500_ac_chg_desc,
+						       &ac_psy_cfg);
+		if (IS_ERR(di->ac_chg.psy)) {
 			dev_err(di->dev, "failed to register AC charger\n");
+			ret = PTR_ERR(di->ac_chg.psy);
 			goto free_charger_wq;
 		}
 	}
 
 	/* Register USB charger class */
 	if (di->usb_chg.enabled) {
-		ret = power_supply_register(di->dev, &di->usb_chg.psy);
-		if (ret) {
+		di->usb_chg.psy = power_supply_register(di->dev,
+							&ab8500_usb_chg_desc,
+							&usb_psy_cfg);
+		if (IS_ERR(di->usb_chg.psy)) {
 			dev_err(di->dev, "failed to register USB charger\n");
+			ret = PTR_ERR(di->usb_chg.psy);
 			goto free_ac;
 		}
 	}
@@ -3650,8 +3665,8 @@ static int ab8500_charger_probe(struct platform_device *pdev)
 	if (charger_status & AC_PW_CONN) {
 		di->ac.charger_connected = 1;
 		di->ac_conn = true;
-		ab8500_power_supply_changed(di, &di->ac_chg.psy);
-		sysfs_notify(&di->ac_chg.psy.dev->kobj, NULL, "present");
+		ab8500_power_supply_changed(di, di->ac_chg.psy);
+		sysfs_notify(&di->ac_chg.psy->dev.kobj, NULL, "present");
 	}
 
 	if (charger_status & USB_PW_CONN) {
@@ -3712,10 +3727,10 @@ put_usb_phy:
 	usb_put_phy(di->usb_phy);
 free_usb:
 	if (di->usb_chg.enabled)
-		power_supply_unregister(&di->usb_chg.psy);
+		power_supply_unregister(di->usb_chg.psy);
 free_ac:
 	if (di->ac_chg.enabled)
-		power_supply_unregister(&di->ac_chg.psy);
+		power_supply_unregister(di->ac_chg.psy);
 free_charger_wq:
 	destroy_workqueue(di->charger_wq);
 	return ret;
diff --git a/drivers/power/ab8500_fg.c b/drivers/power/ab8500_fg.c
index c908658..3830dad 100644
--- a/drivers/power/ab8500_fg.c
+++ b/drivers/power/ab8500_fg.c
@@ -57,9 +57,6 @@
 #define interpolate(x, x1, y1, x2, y2) \
 	((y1) + ((((y2) - (y1)) * ((x) - (x1))) / ((x2) - (x1))));
 
-#define to_ab8500_fg_device_info(x) container_of((x), \
-	struct ab8500_fg, fg_psy);
-
 /**
  * struct ab8500_fg_interrupts - ab8500 fg interupts
  * @name:	name of the interrupt
@@ -229,7 +226,7 @@ struct ab8500_fg {
 	struct ab8500 *parent;
 	struct ab8500_gpadc *gpadc;
 	struct abx500_bm_data *bm;
-	struct power_supply fg_psy;
+	struct power_supply *fg_psy;
 	struct workqueue_struct *fg_wq;
 	struct delayed_work fg_periodic_work;
 	struct delayed_work fg_low_bat_work;
@@ -622,14 +619,14 @@ int ab8500_fg_inst_curr_finalize(struct ab8500_fg *di, int *res)
 	u8 low, high;
 	int val;
 	int ret;
-	int timeout;
+	unsigned long timeout;
 
 	if (!completion_done(&di->ab8500_fg_complete)) {
 		timeout = wait_for_completion_timeout(
 			&di->ab8500_fg_complete,
 			INS_CURR_TIMEOUT);
 		dev_dbg(di->dev, "Finalize time: %d ms\n",
-			((INS_CURR_TIMEOUT - timeout) * 1000) / HZ);
+			jiffies_to_msecs(INS_CURR_TIMEOUT - timeout));
 		if (!timeout) {
 			ret = -ETIME;
 			disable_irq(di->irq);
@@ -716,7 +713,7 @@ fail:
 int ab8500_fg_inst_curr_blocking(struct ab8500_fg *di)
 {
 	int ret;
-	int timeout;
+	unsigned long timeout;
 	int res = 0;
 
 	ret = ab8500_fg_inst_curr_start(di);
@@ -731,7 +728,7 @@ int ab8500_fg_inst_curr_blocking(struct ab8500_fg *di)
 			&di->ab8500_fg_started,
 			INS_CURR_TIMEOUT);
 		dev_dbg(di->dev, "Start time: %d ms\n",
-			((INS_CURR_TIMEOUT - timeout) * 1000) / HZ);
+			jiffies_to_msecs(INS_CURR_TIMEOUT - timeout));
 		if (!timeout) {
 			ret = -ETIME;
 			dev_err(di->dev, "completion timed out [%d]\n",
@@ -1391,7 +1388,7 @@ static void ab8500_fg_check_capacity_limits(struct ab8500_fg *di, bool init)
 				di->bat_cap.prev_percent,
 				di->bat_cap.cap_scale.scaled_cap);
 		}
-		power_supply_changed(&di->fg_psy);
+		power_supply_changed(di->fg_psy);
 		if (di->flags.fully_charged && di->flags.force_full) {
 			dev_dbg(di->dev, "Battery full, notifying.\n");
 			di->flags.force_full = false;
@@ -1850,7 +1847,7 @@ static void ab8500_fg_check_hw_failure_work(struct work_struct *work)
 		if (!di->flags.bat_ovv) {
 			dev_dbg(di->dev, "Battery OVV\n");
 			di->flags.bat_ovv = true;
-			power_supply_changed(&di->fg_psy);
+			power_supply_changed(di->fg_psy);
 		}
 		/* Not yet recovered from ovv, reschedule this test */
 		queue_delayed_work(di->fg_wq, &di->fg_check_hw_failure_work,
@@ -1858,7 +1855,7 @@ static void ab8500_fg_check_hw_failure_work(struct work_struct *work)
 		} else {
 			dev_dbg(di->dev, "Battery recovered from OVV\n");
 			di->flags.bat_ovv = false;
-			power_supply_changed(&di->fg_psy);
+			power_supply_changed(di->fg_psy);
 	}
 }
 
@@ -2096,9 +2093,7 @@ static int ab8500_fg_get_property(struct power_supply *psy,
 	enum power_supply_property psp,
 	union power_supply_propval *val)
 {
-	struct ab8500_fg *di;
-
-	di = to_ab8500_fg_device_info(psy);
+	struct ab8500_fg *di = power_supply_get_drvdata(psy);
 
 	/*
 	 * If battery is identified as unknown and charging of unknown
@@ -2181,14 +2176,14 @@ static int ab8500_fg_get_ext_psy_data(struct device *dev, void *data)
 
 	psy = (struct power_supply *)data;
 	ext = dev_get_drvdata(dev);
-	di = to_ab8500_fg_device_info(psy);
+	di = power_supply_get_drvdata(psy);
 
 	/*
 	 * For all psy where the name of your driver
 	 * appears in any supplied_to
 	 */
 	for (i = 0; i < ext->num_supplicants; i++) {
-		if (!strcmp(ext->supplied_to[i], psy->name))
+		if (!strcmp(ext->supplied_to[i], psy->desc->name))
 			psy_found = true;
 	}
 
@@ -2196,16 +2191,16 @@ static int ab8500_fg_get_ext_psy_data(struct device *dev, void *data)
 		return 0;
 
 	/* Go through all properties for the psy */
-	for (j = 0; j < ext->num_properties; j++) {
+	for (j = 0; j < ext->desc->num_properties; j++) {
 		enum power_supply_property prop;
-		prop = ext->properties[j];
+		prop = ext->desc->properties[j];
 
-		if (ext->get_property(ext, prop, &ret))
+		if (power_supply_get_property(ext, prop, &ret))
 			continue;
 
 		switch (prop) {
 		case POWER_SUPPLY_PROP_STATUS:
-			switch (ext->type) {
+			switch (ext->desc->type) {
 			case POWER_SUPPLY_TYPE_BATTERY:
 				switch (ret.intval) {
 				case POWER_SUPPLY_STATUS_UNKNOWN:
@@ -2244,7 +2239,7 @@ static int ab8500_fg_get_ext_psy_data(struct device *dev, void *data)
 			};
 			break;
 		case POWER_SUPPLY_PROP_TECHNOLOGY:
-			switch (ext->type) {
+			switch (ext->desc->type) {
 			case POWER_SUPPLY_TYPE_BATTERY:
 				if (!di->flags.batt_id_received &&
 				    di->bm->batt_id != BATTERY_UNKNOWN) {
@@ -2274,7 +2269,7 @@ static int ab8500_fg_get_ext_psy_data(struct device *dev, void *data)
 			}
 			break;
 		case POWER_SUPPLY_PROP_TEMP:
-			switch (ext->type) {
+			switch (ext->desc->type) {
 			case POWER_SUPPLY_TYPE_BATTERY:
 				if (di->flags.batt_id_received)
 					di->bat_temp = ret.intval;
@@ -2399,10 +2394,10 @@ out:
  */
 static void ab8500_fg_external_power_changed(struct power_supply *psy)
 {
-	struct ab8500_fg *di = to_ab8500_fg_device_info(psy);
+	struct ab8500_fg *di = power_supply_get_drvdata(psy);
 
 	class_for_each_device(power_supply_class, NULL,
-		&di->fg_psy, ab8500_fg_get_ext_psy_data);
+		di->fg_psy, ab8500_fg_get_ext_psy_data);
 }
 
 /**
@@ -2580,9 +2575,7 @@ static ssize_t ab8505_powercut_flagtime_read(struct device *dev,
 	int ret;
 	u8 reg_value;
 	struct power_supply *psy = dev_get_drvdata(dev);
-	struct ab8500_fg *di;
-
-	di = to_ab8500_fg_device_info(psy);
+	struct ab8500_fg *di = power_supply_get_drvdata(psy);
 
 	ret = abx500_get_register_interruptible(di->dev, AB8500_RTC,
 		AB8505_RTC_PCUT_FLAG_TIME_REG, &reg_value);
@@ -2605,9 +2598,7 @@ static ssize_t ab8505_powercut_flagtime_write(struct device *dev,
 	int ret;
 	long unsigned reg_value;
 	struct power_supply *psy = dev_get_drvdata(dev);
-	struct ab8500_fg *di;
-
-	di = to_ab8500_fg_device_info(psy);
+	struct ab8500_fg *di = power_supply_get_drvdata(psy);
 
 	reg_value = simple_strtoul(buf, NULL, 10);
 
@@ -2633,9 +2624,7 @@ static ssize_t ab8505_powercut_maxtime_read(struct device *dev,
 	int ret;
 	u8 reg_value;
 	struct power_supply *psy = dev_get_drvdata(dev);
-	struct ab8500_fg *di;
-
-	di = to_ab8500_fg_device_info(psy);
+	struct ab8500_fg *di = power_supply_get_drvdata(psy);
 
 	ret = abx500_get_register_interruptible(di->dev, AB8500_RTC,
 		AB8505_RTC_PCUT_MAX_TIME_REG, &reg_value);
@@ -2659,9 +2648,7 @@ static ssize_t ab8505_powercut_maxtime_write(struct device *dev,
 	int ret;
 	int reg_value;
 	struct power_supply *psy = dev_get_drvdata(dev);
-	struct ab8500_fg *di;
-
-	di = to_ab8500_fg_device_info(psy);
+	struct ab8500_fg *di = power_supply_get_drvdata(psy);
 
 	reg_value = simple_strtoul(buf, NULL, 10);
 	if (reg_value > 0x7F) {
@@ -2686,9 +2673,7 @@ static ssize_t ab8505_powercut_restart_read(struct device *dev,
 	int ret;
 	u8 reg_value;
 	struct power_supply *psy = dev_get_drvdata(dev);
-	struct ab8500_fg *di;
-
-	di = to_ab8500_fg_device_info(psy);
+	struct ab8500_fg *di = power_supply_get_drvdata(psy);
 
 	ret = abx500_get_register_interruptible(di->dev, AB8500_RTC,
 		AB8505_RTC_PCUT_RESTART_REG, &reg_value);
@@ -2711,9 +2696,7 @@ static ssize_t ab8505_powercut_restart_write(struct device *dev,
 	int ret;
 	int reg_value;
 	struct power_supply *psy = dev_get_drvdata(dev);
-	struct ab8500_fg *di;
-
-	di = to_ab8500_fg_device_info(psy);
+	struct ab8500_fg *di = power_supply_get_drvdata(psy);
 
 	reg_value = simple_strtoul(buf, NULL, 10);
 	if (reg_value > 0xF) {
@@ -2739,9 +2722,7 @@ static ssize_t ab8505_powercut_timer_read(struct device *dev,
 	int ret;
 	u8 reg_value;
 	struct power_supply *psy = dev_get_drvdata(dev);
-	struct ab8500_fg *di;
-
-	di = to_ab8500_fg_device_info(psy);
+	struct ab8500_fg *di = power_supply_get_drvdata(psy);
 
 	ret = abx500_get_register_interruptible(di->dev, AB8500_RTC,
 						AB8505_RTC_PCUT_TIME_REG, &reg_value);
@@ -2764,9 +2745,7 @@ static ssize_t ab8505_powercut_restart_counter_read(struct device *dev,
 	int ret;
 	u8 reg_value;
 	struct power_supply *psy = dev_get_drvdata(dev);
-	struct ab8500_fg *di;
-
-	di = to_ab8500_fg_device_info(psy);
+	struct ab8500_fg *di = power_supply_get_drvdata(psy);
 
 	ret = abx500_get_register_interruptible(di->dev, AB8500_RTC,
 						AB8505_RTC_PCUT_RESTART_REG, &reg_value);
@@ -2789,9 +2768,7 @@ static ssize_t ab8505_powercut_read(struct device *dev,
 	int ret;
 	u8 reg_value;
 	struct power_supply *psy = dev_get_drvdata(dev);
-	struct ab8500_fg *di;
-
-	di = to_ab8500_fg_device_info(psy);
+	struct ab8500_fg *di = power_supply_get_drvdata(psy);
 
 	ret = abx500_get_register_interruptible(di->dev, AB8500_RTC,
 						AB8505_RTC_PCUT_CTL_STATUS_REG, &reg_value);
@@ -2812,9 +2789,7 @@ static ssize_t ab8505_powercut_write(struct device *dev,
 	int ret;
 	int reg_value;
 	struct power_supply *psy = dev_get_drvdata(dev);
-	struct ab8500_fg *di;
-
-	di = to_ab8500_fg_device_info(psy);
+	struct ab8500_fg *di = power_supply_get_drvdata(psy);
 
 	reg_value = simple_strtoul(buf, NULL, 10);
 	if (reg_value > 0x1) {
@@ -2840,9 +2815,7 @@ static ssize_t ab8505_powercut_flag_read(struct device *dev,
 	int ret;
 	u8 reg_value;
 	struct power_supply *psy = dev_get_drvdata(dev);
-	struct ab8500_fg *di;
-
-	di = to_ab8500_fg_device_info(psy);
+	struct ab8500_fg *di = power_supply_get_drvdata(psy);
 
 	ret = abx500_get_register_interruptible(di->dev, AB8500_RTC,
 						AB8505_RTC_PCUT_CTL_STATUS_REG,  &reg_value);
@@ -2865,9 +2838,7 @@ static ssize_t ab8505_powercut_debounce_read(struct device *dev,
 	int ret;
 	u8 reg_value;
 	struct power_supply *psy = dev_get_drvdata(dev);
-	struct ab8500_fg *di;
-
-	di = to_ab8500_fg_device_info(psy);
+	struct ab8500_fg *di = power_supply_get_drvdata(psy);
 
 	ret = abx500_get_register_interruptible(di->dev, AB8500_RTC,
 						AB8505_RTC_PCUT_DEBOUNCE_REG,  &reg_value);
@@ -2890,9 +2861,7 @@ static ssize_t ab8505_powercut_debounce_write(struct device *dev,
 	int ret;
 	int reg_value;
 	struct power_supply *psy = dev_get_drvdata(dev);
-	struct ab8500_fg *di;
-
-	di = to_ab8500_fg_device_info(psy);
+	struct ab8500_fg *di = power_supply_get_drvdata(psy);
 
 	reg_value = simple_strtoul(buf, NULL, 10);
 	if (reg_value > 0x7) {
@@ -2917,9 +2886,7 @@ static ssize_t ab8505_powercut_enable_status_read(struct device *dev,
 	int ret;
 	u8 reg_value;
 	struct power_supply *psy = dev_get_drvdata(dev);
-	struct ab8500_fg *di;
-
-	di = to_ab8500_fg_device_info(psy);
+	struct ab8500_fg *di = power_supply_get_drvdata(psy);
 
 	ret = abx500_get_register_interruptible(di->dev, AB8500_RTC,
 						AB8505_RTC_PCUT_CTL_STATUS_REG, &reg_value);
@@ -2954,44 +2921,38 @@ static struct device_attribute ab8505_fg_sysfs_psy_attrs[] = {
 		ab8505_powercut_enable_status_read, NULL),
 };
 
-static int ab8500_fg_sysfs_psy_create_attrs(struct device *dev)
+static int ab8500_fg_sysfs_psy_create_attrs(struct ab8500_fg *di)
 {
 	unsigned int i;
-	struct power_supply *psy = dev_get_drvdata(dev);
-	struct ab8500_fg *di;
-
-	di = to_ab8500_fg_device_info(psy);
 
 	if (((is_ab8505(di->parent) || is_ab9540(di->parent)) &&
-	     abx500_get_chip_id(dev->parent) >= AB8500_CUT2P0)
+	     abx500_get_chip_id(di->dev) >= AB8500_CUT2P0)
 	    || is_ab8540(di->parent)) {
 		for (i = 0; i < ARRAY_SIZE(ab8505_fg_sysfs_psy_attrs); i++)
-			if (device_create_file(dev,
+			if (device_create_file(&di->fg_psy->dev,
 					       &ab8505_fg_sysfs_psy_attrs[i]))
 				goto sysfs_psy_create_attrs_failed_ab8505;
 	}
 	return 0;
 sysfs_psy_create_attrs_failed_ab8505:
-	dev_err(dev, "Failed creating sysfs psy attrs for ab8505.\n");
+	dev_err(&di->fg_psy->dev, "Failed creating sysfs psy attrs for ab8505.\n");
 	while (i--)
-		device_remove_file(dev, &ab8505_fg_sysfs_psy_attrs[i]);
+		device_remove_file(&di->fg_psy->dev,
+				   &ab8505_fg_sysfs_psy_attrs[i]);
 
 	return -EIO;
 }
 
-static void ab8500_fg_sysfs_psy_remove_attrs(struct device *dev)
+static void ab8500_fg_sysfs_psy_remove_attrs(struct ab8500_fg *di)
 {
 	unsigned int i;
-	struct power_supply *psy = dev_get_drvdata(dev);
-	struct ab8500_fg *di;
-
-	di = to_ab8500_fg_device_info(psy);
 
 	if (((is_ab8505(di->parent) || is_ab9540(di->parent)) &&
-	     abx500_get_chip_id(dev->parent) >= AB8500_CUT2P0)
+	     abx500_get_chip_id(di->dev) >= AB8500_CUT2P0)
 	    || is_ab8540(di->parent)) {
 		for (i = 0; i < ARRAY_SIZE(ab8505_fg_sysfs_psy_attrs); i++)
-			(void)device_remove_file(dev, &ab8505_fg_sysfs_psy_attrs[i]);
+			(void)device_remove_file(&di->fg_psy->dev,
+						 &ab8505_fg_sysfs_psy_attrs[i]);
 	}
 }
 
@@ -3056,17 +3017,20 @@ static int ab8500_fg_remove(struct platform_device *pdev)
 	ab8500_fg_sysfs_exit(di);
 
 	flush_scheduled_work();
-	ab8500_fg_sysfs_psy_remove_attrs(di->fg_psy.dev);
-	power_supply_unregister(&di->fg_psy);
+	ab8500_fg_sysfs_psy_remove_attrs(di);
+	power_supply_unregister(di->fg_psy);
 	return ret;
 }
 
 /* ab8500 fg driver interrupts and their respective isr */
-static struct ab8500_fg_interrupts ab8500_fg_irq[] = {
+static struct ab8500_fg_interrupts ab8500_fg_irq_th[] = {
 	{"NCONV_ACCU", ab8500_fg_cc_convend_handler},
 	{"BATT_OVV", ab8500_fg_batt_ovv_handler},
 	{"LOW_BAT_F", ab8500_fg_lowbatf_handler},
 	{"CC_INT_CALIB", ab8500_fg_cc_int_calib_handler},
+};
+
+static struct ab8500_fg_interrupts ab8500_fg_irq_bh[] = {
 	{"CCEOC", ab8500_fg_cc_data_end_handler},
 };
 
@@ -3075,10 +3039,20 @@ static char *supply_interface[] = {
 	"ab8500_usb",
 };
 
+static const struct power_supply_desc ab8500_fg_desc = {
+	.name			= "ab8500_fg",
+	.type			= POWER_SUPPLY_TYPE_BATTERY,
+	.properties		= ab8500_fg_props,
+	.num_properties		= ARRAY_SIZE(ab8500_fg_props),
+	.get_property		= ab8500_fg_get_property,
+	.external_power_changed	= ab8500_fg_external_power_changed,
+};
+
 static int ab8500_fg_probe(struct platform_device *pdev)
 {
 	struct device_node *np = pdev->dev.of_node;
 	struct abx500_bm_data *plat = pdev->dev.platform_data;
+	struct power_supply_config psy_cfg = {};
 	struct ab8500_fg *di;
 	int i, irq;
 	int ret = 0;
@@ -3110,14 +3084,9 @@ static int ab8500_fg_probe(struct platform_device *pdev)
 	di->parent = dev_get_drvdata(pdev->dev.parent);
 	di->gpadc = ab8500_gpadc_get("ab8500-gpadc.0");
 
-	di->fg_psy.name = "ab8500_fg";
-	di->fg_psy.type = POWER_SUPPLY_TYPE_BATTERY;
-	di->fg_psy.properties = ab8500_fg_props;
-	di->fg_psy.num_properties = ARRAY_SIZE(ab8500_fg_props);
-	di->fg_psy.get_property = ab8500_fg_get_property;
-	di->fg_psy.supplied_to = supply_interface;
-	di->fg_psy.num_supplicants = ARRAY_SIZE(supply_interface),
-	di->fg_psy.external_power_changed = ab8500_fg_external_power_changed;
+	psy_cfg.supplied_to = supply_interface;
+	psy_cfg.num_supplicants = ARRAY_SIZE(supply_interface);
+	psy_cfg.drv_data = di;
 
 	di->bat_cap.max_mah_design = MILLI_TO_MICRO *
 		di->bm->bat_type[di->bm->batt_id].charge_full_design;
@@ -3178,9 +3147,10 @@ static int ab8500_fg_probe(struct platform_device *pdev)
 	di->flags.batt_id_received = false;
 
 	/* Register FG power supply class */
-	ret = power_supply_register(di->dev, &di->fg_psy);
-	if (ret) {
+	di->fg_psy = power_supply_register(di->dev, &ab8500_fg_desc, &psy_cfg);
+	if (IS_ERR(di->fg_psy)) {
 		dev_err(di->dev, "failed to register FG psy\n");
+		ret = PTR_ERR(di->fg_psy);
 		goto free_inst_curr_wq;
 	}
 
@@ -3194,21 +3164,36 @@ static int ab8500_fg_probe(struct platform_device *pdev)
 	init_completion(&di->ab8500_fg_started);
 	init_completion(&di->ab8500_fg_complete);
 
-	/* Register interrupts */
-	for (i = 0; i < ARRAY_SIZE(ab8500_fg_irq); i++) {
-		irq = platform_get_irq_byname(pdev, ab8500_fg_irq[i].name);
-		ret = request_threaded_irq(irq, NULL, ab8500_fg_irq[i].isr,
-			IRQF_SHARED | IRQF_NO_SUSPEND,
-			ab8500_fg_irq[i].name, di);
+	/* Register primary interrupt handlers */
+	for (i = 0; i < ARRAY_SIZE(ab8500_fg_irq_th); i++) {
+		irq = platform_get_irq_byname(pdev, ab8500_fg_irq_th[i].name);
+		ret = request_irq(irq, ab8500_fg_irq_th[i].isr,
+				  IRQF_SHARED | IRQF_NO_SUSPEND,
+				  ab8500_fg_irq_th[i].name, di);
 
 		if (ret != 0) {
-			dev_err(di->dev, "failed to request %s IRQ %d: %d\n"
-				, ab8500_fg_irq[i].name, irq, ret);
+			dev_err(di->dev, "failed to request %s IRQ %d: %d\n",
+				ab8500_fg_irq_th[i].name, irq, ret);
 			goto free_irq;
 		}
 		dev_dbg(di->dev, "Requested %s IRQ %d: %d\n",
-			ab8500_fg_irq[i].name, irq, ret);
+			ab8500_fg_irq_th[i].name, irq, ret);
 	}
+
+	/* Register threaded interrupt handler */
+	irq = platform_get_irq_byname(pdev, ab8500_fg_irq_bh[0].name);
+	ret = request_threaded_irq(irq, NULL, ab8500_fg_irq_bh[0].isr,
+				IRQF_SHARED | IRQF_NO_SUSPEND | IRQF_ONESHOT,
+			ab8500_fg_irq_bh[0].name, di);
+
+	if (ret != 0) {
+		dev_err(di->dev, "failed to request %s IRQ %d: %d\n",
+			ab8500_fg_irq_bh[0].name, irq, ret);
+		goto free_irq;
+	}
+	dev_dbg(di->dev, "Requested %s IRQ %d: %d\n",
+		ab8500_fg_irq_bh[0].name, irq, ret);
+
 	di->irq = platform_get_irq_byname(pdev, "CCEOC");
 	disable_irq(di->irq);
 	di->nbr_cceoc_irq_cnt = 0;
@@ -3221,7 +3206,7 @@ static int ab8500_fg_probe(struct platform_device *pdev)
 		goto free_irq;
 	}
 
-	ret = ab8500_fg_sysfs_psy_create_attrs(di->fg_psy.dev);
+	ret = ab8500_fg_sysfs_psy_create_attrs(di);
 	if (ret) {
 		dev_err(di->dev, "failed to create FG psy\n");
 		ab8500_fg_sysfs_exit(di);
@@ -3243,13 +3228,15 @@ static int ab8500_fg_probe(struct platform_device *pdev)
 	return ret;
 
 free_irq:
-	power_supply_unregister(&di->fg_psy);
+	power_supply_unregister(di->fg_psy);
 
-	/* We also have to free all successfully registered irqs */
-	for (i = i - 1; i >= 0; i--) {
-		irq = platform_get_irq_byname(pdev, ab8500_fg_irq[i].name);
+	/* We also have to free all registered irqs */
+	for (i = 0; i < ARRAY_SIZE(ab8500_fg_irq_th); i++) {
+		irq = platform_get_irq_byname(pdev, ab8500_fg_irq_th[i].name);
 		free_irq(irq, di);
 	}
+	irq = platform_get_irq_byname(pdev, ab8500_fg_irq_bh[0].name);
+	free_irq(irq, di);
 free_inst_curr_wq:
 	destroy_workqueue(di->fg_wq);
 	return ret;
diff --git a/drivers/power/abx500_chargalg.c b/drivers/power/abx500_chargalg.c
index ab54b8d..541f702 100644
--- a/drivers/power/abx500_chargalg.c
+++ b/drivers/power/abx500_chargalg.c
@@ -50,9 +50,6 @@
 #define CHARGALG_CURR_STEP_LOW		0
 #define CHARGALG_CURR_STEP_HIGH	100
 
-#define to_abx500_chargalg_device_info(x) container_of((x), \
-	struct abx500_chargalg, chargalg_psy);
-
 enum abx500_chargers {
 	NO_CHG,
 	AC_CHG,
@@ -256,7 +253,7 @@ struct abx500_chargalg {
 	struct ab8500 *parent;
 	struct abx500_chargalg_current_step_status curr_status;
 	struct abx500_bm_data *bm;
-	struct power_supply chargalg_psy;
+	struct power_supply *chargalg_psy;
 	struct ux500_charger *ac_chg;
 	struct ux500_charger *usb_chg;
 	struct abx500_chargalg_events events;
@@ -695,7 +692,7 @@ static void abx500_chargalg_stop_charging(struct abx500_chargalg *di)
 	di->charge_status = POWER_SUPPLY_STATUS_NOT_CHARGING;
 	di->maintenance_chg = false;
 	cancel_delayed_work(&di->chargalg_wd_work);
-	power_supply_changed(&di->chargalg_psy);
+	power_supply_changed(di->chargalg_psy);
 }
 
 /**
@@ -715,7 +712,7 @@ static void abx500_chargalg_hold_charging(struct abx500_chargalg *di)
 	di->charge_status = POWER_SUPPLY_STATUS_CHARGING;
 	di->maintenance_chg = false;
 	cancel_delayed_work(&di->chargalg_wd_work);
-	power_supply_changed(&di->chargalg_psy);
+	power_supply_changed(di->chargalg_psy);
 }
 
 /**
@@ -842,7 +839,7 @@ static void abx500_chargalg_end_of_charge(struct abx500_chargalg *di)
 			di->charge_status = POWER_SUPPLY_STATUS_FULL;
 			di->maintenance_chg = true;
 			dev_dbg(di->dev, "EOC reached!\n");
-			power_supply_changed(&di->chargalg_psy);
+			power_supply_changed(di->chargalg_psy);
 		} else {
 			dev_dbg(di->dev,
 				" EOC limit reached for the %d"
@@ -987,10 +984,10 @@ static int abx500_chargalg_get_ext_psy_data(struct device *dev, void *data)
 
 	psy = (struct power_supply *)data;
 	ext = dev_get_drvdata(dev);
-	di = to_abx500_chargalg_device_info(psy);
+	di = power_supply_get_drvdata(psy);
 	/* For all psy where the driver name appears in any supplied_to */
 	for (i = 0; i < ext->num_supplicants; i++) {
-		if (!strcmp(ext->supplied_to[i], psy->name))
+		if (!strcmp(ext->supplied_to[i], psy->desc->name))
 			psy_found = true;
 	}
 	if (!psy_found)
@@ -1001,29 +998,31 @@ static int abx500_chargalg_get_ext_psy_data(struct device *dev, void *data)
 	 * property because of handling that sysfs entry on its own, this is
 	 * the place to get the battery capacity.
 	 */
-	if (!ext->get_property(ext, POWER_SUPPLY_PROP_CAPACITY, &ret)) {
+	if (!power_supply_get_property(ext, POWER_SUPPLY_PROP_CAPACITY, &ret)) {
 		di->batt_data.percent = ret.intval;
 		capacity_updated = true;
 	}
 
 	/* Go through all properties for the psy */
-	for (j = 0; j < ext->num_properties; j++) {
+	for (j = 0; j < ext->desc->num_properties; j++) {
 		enum power_supply_property prop;
-		prop = ext->properties[j];
+		prop = ext->desc->properties[j];
 
-		/* Initialize chargers if not already done */
+		/*
+		 * Initialize chargers if not already done.
+		 * The ab8500_charger*/
 		if (!di->ac_chg &&
-			ext->type == POWER_SUPPLY_TYPE_MAINS)
+			ext->desc->type == POWER_SUPPLY_TYPE_MAINS)
 			di->ac_chg = psy_to_ux500_charger(ext);
 		else if (!di->usb_chg &&
-			ext->type == POWER_SUPPLY_TYPE_USB)
+			ext->desc->type == POWER_SUPPLY_TYPE_USB)
 			di->usb_chg = psy_to_ux500_charger(ext);
 
-		if (ext->get_property(ext, prop, &ret))
+		if (power_supply_get_property(ext, prop, &ret))
 			continue;
 		switch (prop) {
 		case POWER_SUPPLY_PROP_PRESENT:
-			switch (ext->type) {
+			switch (ext->desc->type) {
 			case POWER_SUPPLY_TYPE_BATTERY:
 				/* Battery present */
 				if (ret.intval)
@@ -1070,7 +1069,7 @@ static int abx500_chargalg_get_ext_psy_data(struct device *dev, void *data)
 			break;
 
 		case POWER_SUPPLY_PROP_ONLINE:
-			switch (ext->type) {
+			switch (ext->desc->type) {
 			case POWER_SUPPLY_TYPE_BATTERY:
 				break;
 			case POWER_SUPPLY_TYPE_MAINS:
@@ -1115,7 +1114,7 @@ static int abx500_chargalg_get_ext_psy_data(struct device *dev, void *data)
 			break;
 
 		case POWER_SUPPLY_PROP_HEALTH:
-			switch (ext->type) {
+			switch (ext->desc->type) {
 			case POWER_SUPPLY_TYPE_BATTERY:
 				break;
 			case POWER_SUPPLY_TYPE_MAINS:
@@ -1198,7 +1197,7 @@ static int abx500_chargalg_get_ext_psy_data(struct device *dev, void *data)
 			break;
 
 		case POWER_SUPPLY_PROP_VOLTAGE_NOW:
-			switch (ext->type) {
+			switch (ext->desc->type) {
 			case POWER_SUPPLY_TYPE_BATTERY:
 				di->batt_data.volt = ret.intval / 1000;
 				break;
@@ -1214,7 +1213,7 @@ static int abx500_chargalg_get_ext_psy_data(struct device *dev, void *data)
 			break;
 
 		case POWER_SUPPLY_PROP_VOLTAGE_AVG:
-			switch (ext->type) {
+			switch (ext->desc->type) {
 			case POWER_SUPPLY_TYPE_MAINS:
 				/* AVG is used to indicate when we are
 				 * in CV mode */
@@ -1239,7 +1238,7 @@ static int abx500_chargalg_get_ext_psy_data(struct device *dev, void *data)
 			break;
 
 		case POWER_SUPPLY_PROP_TECHNOLOGY:
-			switch (ext->type) {
+			switch (ext->desc->type) {
 			case POWER_SUPPLY_TYPE_BATTERY:
 				if (ret.intval)
 					di->events.batt_unknown = false;
@@ -1257,7 +1256,7 @@ static int abx500_chargalg_get_ext_psy_data(struct device *dev, void *data)
 			break;
 
 		case POWER_SUPPLY_PROP_CURRENT_NOW:
-			switch (ext->type) {
+			switch (ext->desc->type) {
 			case POWER_SUPPLY_TYPE_MAINS:
 					di->chg_info.ac_curr =
 						ret.intval / 1000;
@@ -1275,7 +1274,7 @@ static int abx500_chargalg_get_ext_psy_data(struct device *dev, void *data)
 			break;
 
 		case POWER_SUPPLY_PROP_CURRENT_AVG:
-			switch (ext->type) {
+			switch (ext->desc->type) {
 			case POWER_SUPPLY_TYPE_BATTERY:
 				di->batt_data.avg_curr = ret.intval / 1000;
 				break;
@@ -1311,7 +1310,7 @@ static int abx500_chargalg_get_ext_psy_data(struct device *dev, void *data)
  */
 static void abx500_chargalg_external_power_changed(struct power_supply *psy)
 {
-	struct abx500_chargalg *di = to_abx500_chargalg_device_info(psy);
+	struct abx500_chargalg *di = power_supply_get_drvdata(psy);
 
 	/*
 	 * Trigger execution of the algorithm instantly and read
@@ -1336,7 +1335,7 @@ static void abx500_chargalg_algorithm(struct abx500_chargalg *di)
 
 	/* Collect data from all power_supply class devices */
 	class_for_each_device(power_supply_class, NULL,
-		&di->chargalg_psy, abx500_chargalg_get_ext_psy_data);
+		di->chargalg_psy, abx500_chargalg_get_ext_psy_data);
 
 	abx500_chargalg_end_of_charge(di);
 	abx500_chargalg_check_temp(di);
@@ -1478,7 +1477,7 @@ static void abx500_chargalg_algorithm(struct abx500_chargalg *di)
 		di->charge_status = POWER_SUPPLY_STATUS_NOT_CHARGING;
 		di->maintenance_chg = false;
 		abx500_chargalg_state_to(di, STATE_SUSPENDED);
-		power_supply_changed(&di->chargalg_psy);
+		power_supply_changed(di->chargalg_psy);
 		/* Intentional fallthrough */
 
 	case STATE_SUSPENDED:
@@ -1576,7 +1575,7 @@ static void abx500_chargalg_algorithm(struct abx500_chargalg *di)
 		di->charge_status = POWER_SUPPLY_STATUS_CHARGING;
 		di->eoc_cnt = 0;
 		di->maintenance_chg = false;
-		power_supply_changed(&di->chargalg_psy);
+		power_supply_changed(di->chargalg_psy);
 
 		break;
 
@@ -1624,7 +1623,7 @@ static void abx500_chargalg_algorithm(struct abx500_chargalg *di)
 			di->bm->bat_type[
 				di->bm->batt_id].maint_a_cur_lvl);
 		abx500_chargalg_state_to(di, STATE_MAINTENANCE_A);
-		power_supply_changed(&di->chargalg_psy);
+		power_supply_changed(di->chargalg_psy);
 		/* Intentional fallthrough*/
 
 	case STATE_MAINTENANCE_A:
@@ -1644,7 +1643,7 @@ static void abx500_chargalg_algorithm(struct abx500_chargalg *di)
 			di->bm->bat_type[
 				di->bm->batt_id].maint_b_cur_lvl);
 		abx500_chargalg_state_to(di, STATE_MAINTENANCE_B);
-		power_supply_changed(&di->chargalg_psy);
+		power_supply_changed(di->chargalg_psy);
 		/* Intentional fallthrough*/
 
 	case STATE_MAINTENANCE_B:
@@ -1663,7 +1662,7 @@ static void abx500_chargalg_algorithm(struct abx500_chargalg *di)
 		abx500_chargalg_stop_maintenance_timer(di);
 		di->charge_status = POWER_SUPPLY_STATUS_CHARGING;
 		abx500_chargalg_state_to(di, STATE_TEMP_LOWHIGH);
-		power_supply_changed(&di->chargalg_psy);
+		power_supply_changed(di->chargalg_psy);
 		/* Intentional fallthrough */
 
 	case STATE_TEMP_LOWHIGH:
@@ -1779,9 +1778,7 @@ static int abx500_chargalg_get_property(struct power_supply *psy,
 	enum power_supply_property psp,
 	union power_supply_propval *val)
 {
-	struct abx500_chargalg *di;
-
-	di = to_abx500_chargalg_device_info(psy);
+	struct abx500_chargalg *di = power_supply_get_drvdata(psy);
 
 	switch (psp) {
 	case POWER_SUPPLY_PROP_STATUS:
@@ -2034,7 +2031,7 @@ static int abx500_chargalg_remove(struct platform_device *pdev)
 	/* Delete the work queue */
 	destroy_workqueue(di->chargalg_wq);
 
-	power_supply_unregister(&di->chargalg_psy);
+	power_supply_unregister(di->chargalg_psy);
 
 	return 0;
 }
@@ -2043,10 +2040,20 @@ static char *supply_interface[] = {
 	"ab8500_fg",
 };
 
+static const struct power_supply_desc abx500_chargalg_desc = {
+	.name			= "abx500_chargalg",
+	.type			= POWER_SUPPLY_TYPE_BATTERY,
+	.properties		= abx500_chargalg_props,
+	.num_properties		= ARRAY_SIZE(abx500_chargalg_props),
+	.get_property		= abx500_chargalg_get_property,
+	.external_power_changed	= abx500_chargalg_external_power_changed,
+};
+
 static int abx500_chargalg_probe(struct platform_device *pdev)
 {
 	struct device_node *np = pdev->dev.of_node;
 	struct abx500_bm_data *plat = pdev->dev.platform_data;
+	struct power_supply_config psy_cfg = {};
 	struct abx500_chargalg *di;
 	int ret = 0;
 
@@ -2074,16 +2081,9 @@ static int abx500_chargalg_probe(struct platform_device *pdev)
 	di->dev = &pdev->dev;
 	di->parent = dev_get_drvdata(pdev->dev.parent);
 
-	/* chargalg supply */
-	di->chargalg_psy.name = "abx500_chargalg";
-	di->chargalg_psy.type = POWER_SUPPLY_TYPE_BATTERY;
-	di->chargalg_psy.properties = abx500_chargalg_props;
-	di->chargalg_psy.num_properties = ARRAY_SIZE(abx500_chargalg_props);
-	di->chargalg_psy.get_property = abx500_chargalg_get_property;
-	di->chargalg_psy.supplied_to = supply_interface;
-	di->chargalg_psy.num_supplicants = ARRAY_SIZE(supply_interface),
-	di->chargalg_psy.external_power_changed =
-		abx500_chargalg_external_power_changed;
+	psy_cfg.supplied_to = supply_interface;
+	psy_cfg.num_supplicants = ARRAY_SIZE(supply_interface);
+	psy_cfg.drv_data = di;
 
 	/* Initilialize safety timer */
 	hrtimer_init(&di->safety_timer, CLOCK_REALTIME, HRTIMER_MODE_ABS);
@@ -2115,9 +2115,11 @@ static int abx500_chargalg_probe(struct platform_device *pdev)
 	di->chg_info.prev_conn_chg = -1;
 
 	/* Register chargalg power supply class */
-	ret = power_supply_register(di->dev, &di->chargalg_psy);
-	if (ret) {
+	di->chargalg_psy = power_supply_register(di->dev, &abx500_chargalg_desc,
+						 &psy_cfg);
+	if (IS_ERR(di->chargalg_psy)) {
 		dev_err(di->dev, "failed to register chargalg psy\n");
+		ret = PTR_ERR(di->chargalg_psy);
 		goto free_chargalg_wq;
 	}
 
@@ -2138,7 +2140,7 @@ static int abx500_chargalg_probe(struct platform_device *pdev)
 	return ret;
 
 free_psy:
-	power_supply_unregister(&di->chargalg_psy);
+	power_supply_unregister(di->chargalg_psy);
 free_chargalg_wq:
 	destroy_workqueue(di->chargalg_wq);
 	return ret;
diff --git a/drivers/power/apm_power.c b/drivers/power/apm_power.c
index 39763015b..9d1a7fb 100644
--- a/drivers/power/apm_power.c
+++ b/drivers/power/apm_power.c
@@ -15,10 +15,10 @@
 #include <linux/apm-emulation.h>
 
 
-#define PSY_PROP(psy, prop, val) (psy->get_property(psy, \
+#define PSY_PROP(psy, prop, val) (power_supply_get_property(psy, \
 			 POWER_SUPPLY_PROP_##prop, val))
 
-#define _MPSY_PROP(prop, val) (main_battery->get_property(main_battery, \
+#define _MPSY_PROP(prop, val) (power_supply_get_property(main_battery, \
 							 prop, val))
 
 #define MPSY_PROP(prop, val) _MPSY_PROP(POWER_SUPPLY_PROP_##prop, val)
@@ -48,7 +48,7 @@ static int __find_main_battery(struct device *dev, void *data)
 
 	bp->bat = dev_get_drvdata(dev);
 
-	if (bp->bat->use_for_apm) {
+	if (bp->bat->desc->use_for_apm) {
 		/* nice, we explicitly asked to report this battery. */
 		bp->main = bp->bat;
 		return 1;
diff --git a/drivers/power/axp288_fuel_gauge.c b/drivers/power/axp288_fuel_gauge.c
new file mode 100644
index 0000000..ca1cc5a
--- /dev/null
+++ b/drivers/power/axp288_fuel_gauge.c
@@ -0,0 +1,1154 @@
+/*
+ * axp288_fuel_gauge.c - Xpower AXP288 PMIC Fuel Gauge Driver
+ *
+ * Copyright (C) 2014 Intel Corporation
+ *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	See the GNU
+ * General Public License for more details.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/device.h>
+#include <linux/regmap.h>
+#include <linux/jiffies.h>
+#include <linux/interrupt.h>
+#include <linux/device.h>
+#include <linux/workqueue.h>
+#include <linux/mfd/axp20x.h>
+#include <linux/platform_device.h>
+#include <linux/power_supply.h>
+#include <linux/iio/consumer.h>
+#include <linux/debugfs.h>
+#include <linux/seq_file.h>
+
+#define CHRG_STAT_BAT_SAFE_MODE		(1 << 3)
+#define CHRG_STAT_BAT_VALID			(1 << 4)
+#define CHRG_STAT_BAT_PRESENT		(1 << 5)
+#define CHRG_STAT_CHARGING			(1 << 6)
+#define CHRG_STAT_PMIC_OTP			(1 << 7)
+
+#define CHRG_CCCV_CC_MASK			0xf     /* 4 bits */
+#define CHRG_CCCV_CC_BIT_POS		0
+#define CHRG_CCCV_CC_OFFSET			200     /* 200mA */
+#define CHRG_CCCV_CC_LSB_RES		200     /* 200mA */
+#define CHRG_CCCV_ITERM_20P			(1 << 4)    /* 20% of CC */
+#define CHRG_CCCV_CV_MASK			0x60        /* 2 bits */
+#define CHRG_CCCV_CV_BIT_POS		5
+#define CHRG_CCCV_CV_4100MV			0x0     /* 4.10V */
+#define CHRG_CCCV_CV_4150MV			0x1     /* 4.15V */
+#define CHRG_CCCV_CV_4200MV			0x2     /* 4.20V */
+#define CHRG_CCCV_CV_4350MV			0x3     /* 4.35V */
+#define CHRG_CCCV_CHG_EN			(1 << 7)
+
+#define CV_4100						4100    /* 4100mV */
+#define CV_4150						4150    /* 4150mV */
+#define CV_4200						4200    /* 4200mV */
+#define CV_4350						4350    /* 4350mV */
+
+#define TEMP_IRQ_CFG_QWBTU			(1 << 0)
+#define TEMP_IRQ_CFG_WBTU			(1 << 1)
+#define TEMP_IRQ_CFG_QWBTO			(1 << 2)
+#define TEMP_IRQ_CFG_WBTO			(1 << 3)
+#define TEMP_IRQ_CFG_MASK			0xf
+
+#define FG_IRQ_CFG_LOWBATT_WL2		(1 << 0)
+#define FG_IRQ_CFG_LOWBATT_WL1		(1 << 1)
+#define FG_IRQ_CFG_LOWBATT_MASK		0x3
+#define LOWBAT_IRQ_STAT_LOWBATT_WL2	(1 << 0)
+#define LOWBAT_IRQ_STAT_LOWBATT_WL1	(1 << 1)
+
+#define FG_CNTL_OCV_ADJ_STAT		(1 << 2)
+#define FG_CNTL_OCV_ADJ_EN			(1 << 3)
+#define FG_CNTL_CAP_ADJ_STAT		(1 << 4)
+#define FG_CNTL_CAP_ADJ_EN			(1 << 5)
+#define FG_CNTL_CC_EN				(1 << 6)
+#define FG_CNTL_GAUGE_EN			(1 << 7)
+
+#define FG_REP_CAP_VALID			(1 << 7)
+#define FG_REP_CAP_VAL_MASK			0x7F
+
+#define FG_DES_CAP1_VALID			(1 << 7)
+#define FG_DES_CAP1_VAL_MASK		0x7F
+#define FG_DES_CAP0_VAL_MASK		0xFF
+#define FG_DES_CAP_RES_LSB			1456    /* 1.456mAhr */
+
+#define FG_CC_MTR1_VALID			(1 << 7)
+#define FG_CC_MTR1_VAL_MASK			0x7F
+#define FG_CC_MTR0_VAL_MASK			0xFF
+#define FG_DES_CC_RES_LSB			1456    /* 1.456mAhr */
+
+#define FG_OCV_CAP_VALID			(1 << 7)
+#define FG_OCV_CAP_VAL_MASK			0x7F
+#define FG_CC_CAP_VALID				(1 << 7)
+#define FG_CC_CAP_VAL_MASK			0x7F
+
+#define FG_LOW_CAP_THR1_MASK		0xf0    /* 5% tp 20% */
+#define FG_LOW_CAP_THR1_VAL			0xa0    /* 15 perc */
+#define FG_LOW_CAP_THR2_MASK		0x0f    /* 0% to 15% */
+#define FG_LOW_CAP_WARN_THR			14  /* 14 perc */
+#define FG_LOW_CAP_CRIT_THR			4   /* 4 perc */
+#define FG_LOW_CAP_SHDN_THR			0   /* 0 perc */
+
+#define STATUS_MON_DELAY_JIFFIES    (HZ * 60)   /*60 sec */
+#define NR_RETRY_CNT    3
+#define DEV_NAME	"axp288_fuel_gauge"
+
+/* 1.1mV per LSB expressed in uV */
+#define VOLTAGE_FROM_ADC(a)			((a * 11) / 10)
+/* properties converted to tenths of degrees, uV, uA, uW */
+#define PROP_TEMP(a)		((a) * 10)
+#define UNPROP_TEMP(a)		((a) / 10)
+#define PROP_VOLT(a)		((a) * 1000)
+#define PROP_CURR(a)		((a) * 1000)
+
+#define AXP288_FG_INTR_NUM	6
+enum {
+	QWBTU_IRQ = 0,
+	WBTU_IRQ,
+	QWBTO_IRQ,
+	WBTO_IRQ,
+	WL2_IRQ,
+	WL1_IRQ,
+};
+
+struct axp288_fg_info {
+	struct platform_device *pdev;
+	struct axp20x_fg_pdata *pdata;
+	struct regmap *regmap;
+	struct regmap_irq_chip_data *regmap_irqc;
+	int irq[AXP288_FG_INTR_NUM];
+	struct power_supply *bat;
+	struct mutex lock;
+	int status;
+	struct delayed_work status_monitor;
+	struct dentry *debug_file;
+};
+
+static enum power_supply_property fuel_gauge_props[] = {
+	POWER_SUPPLY_PROP_STATUS,
+	POWER_SUPPLY_PROP_PRESENT,
+	POWER_SUPPLY_PROP_HEALTH,
+	POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN,
+	POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN,
+	POWER_SUPPLY_PROP_VOLTAGE_NOW,
+	POWER_SUPPLY_PROP_VOLTAGE_OCV,
+	POWER_SUPPLY_PROP_CURRENT_NOW,
+	POWER_SUPPLY_PROP_CAPACITY,
+	POWER_SUPPLY_PROP_CAPACITY_ALERT_MIN,
+	POWER_SUPPLY_PROP_TEMP,
+	POWER_SUPPLY_PROP_TEMP_MAX,
+	POWER_SUPPLY_PROP_TEMP_MIN,
+	POWER_SUPPLY_PROP_TEMP_ALERT_MIN,
+	POWER_SUPPLY_PROP_TEMP_ALERT_MAX,
+	POWER_SUPPLY_PROP_TECHNOLOGY,
+	POWER_SUPPLY_PROP_CHARGE_FULL,
+	POWER_SUPPLY_PROP_CHARGE_NOW,
+	POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
+	POWER_SUPPLY_PROP_MODEL_NAME,
+};
+
+static int fuel_gauge_reg_readb(struct axp288_fg_info *info, int reg)
+{
+	int ret, i;
+	unsigned int val;
+
+	for (i = 0; i < NR_RETRY_CNT; i++) {
+		ret = regmap_read(info->regmap, reg, &val);
+		if (ret == -EBUSY)
+			continue;
+		else
+			break;
+	}
+
+	if (ret < 0)
+		dev_err(&info->pdev->dev, "axp288 reg read err:%d\n", ret);
+
+	return val;
+}
+
+static int fuel_gauge_reg_writeb(struct axp288_fg_info *info, int reg, u8 val)
+{
+	int ret;
+
+	ret = regmap_write(info->regmap, reg, (unsigned int)val);
+
+	if (ret < 0)
+		dev_err(&info->pdev->dev, "axp288 reg write err:%d\n", ret);
+
+	return ret;
+}
+
+static int pmic_read_adc_val(const char *name, int *raw_val,
+		struct axp288_fg_info *info)
+{
+	int ret, val = 0;
+	struct iio_channel *indio_chan;
+
+	indio_chan = iio_channel_get(NULL, name);
+	if (IS_ERR_OR_NULL(indio_chan)) {
+		ret = PTR_ERR(indio_chan);
+		goto exit;
+	}
+	ret = iio_read_channel_raw(indio_chan, &val);
+	if (ret < 0) {
+		dev_err(&info->pdev->dev,
+			"IIO channel read error: %x, %x\n", ret, val);
+		goto err_exit;
+	}
+
+	dev_dbg(&info->pdev->dev, "adc raw val=%x\n", val);
+	*raw_val = val;
+
+err_exit:
+	iio_channel_release(indio_chan);
+exit:
+	return ret;
+}
+
+#ifdef CONFIG_DEBUG_FS
+static int fuel_gauge_debug_show(struct seq_file *s, void *data)
+{
+	struct axp288_fg_info *info = s->private;
+	int raw_val, ret;
+
+	seq_printf(s, " PWR_STATUS[%02x] : %02x\n",
+		AXP20X_PWR_INPUT_STATUS,
+		fuel_gauge_reg_readb(info, AXP20X_PWR_INPUT_STATUS));
+	seq_printf(s, "PWR_OP_MODE[%02x] : %02x\n",
+		AXP20X_PWR_OP_MODE,
+		fuel_gauge_reg_readb(info, AXP20X_PWR_OP_MODE));
+	seq_printf(s, " CHRG_CTRL1[%02x] : %02x\n",
+		AXP20X_CHRG_CTRL1,
+		fuel_gauge_reg_readb(info, AXP20X_CHRG_CTRL1));
+	seq_printf(s, "       VLTF[%02x] : %02x\n",
+		AXP20X_V_LTF_DISCHRG,
+		fuel_gauge_reg_readb(info, AXP20X_V_LTF_DISCHRG));
+	seq_printf(s, "       VHTF[%02x] : %02x\n",
+		AXP20X_V_HTF_DISCHRG,
+		fuel_gauge_reg_readb(info, AXP20X_V_HTF_DISCHRG));
+	seq_printf(s, "    CC_CTRL[%02x] : %02x\n",
+		AXP20X_CC_CTRL,
+		fuel_gauge_reg_readb(info, AXP20X_CC_CTRL));
+	seq_printf(s, "BATTERY CAP[%02x] : %02x\n",
+		AXP20X_FG_RES,
+		fuel_gauge_reg_readb(info, AXP20X_FG_RES));
+	seq_printf(s, "    FG_RDC1[%02x] : %02x\n",
+		AXP288_FG_RDC1_REG,
+		fuel_gauge_reg_readb(info, AXP288_FG_RDC1_REG));
+	seq_printf(s, "    FG_RDC0[%02x] : %02x\n",
+		AXP288_FG_RDC0_REG,
+		fuel_gauge_reg_readb(info, AXP288_FG_RDC0_REG));
+	seq_printf(s, "    FG_OCVH[%02x] : %02x\n",
+		AXP288_FG_OCVH_REG,
+		fuel_gauge_reg_readb(info, AXP288_FG_OCVH_REG));
+	seq_printf(s, "    FG_OCVL[%02x] : %02x\n",
+		AXP288_FG_OCVL_REG,
+		fuel_gauge_reg_readb(info, AXP288_FG_OCVL_REG));
+	seq_printf(s, "FG_DES_CAP1[%02x] : %02x\n",
+		AXP288_FG_DES_CAP1_REG,
+		fuel_gauge_reg_readb(info, AXP288_FG_DES_CAP1_REG));
+	seq_printf(s, "FG_DES_CAP0[%02x] : %02x\n",
+		AXP288_FG_DES_CAP0_REG,
+		fuel_gauge_reg_readb(info, AXP288_FG_DES_CAP0_REG));
+	seq_printf(s, " FG_CC_MTR1[%02x] : %02x\n",
+		AXP288_FG_CC_MTR1_REG,
+		fuel_gauge_reg_readb(info, AXP288_FG_CC_MTR1_REG));
+	seq_printf(s, " FG_CC_MTR0[%02x] : %02x\n",
+		AXP288_FG_CC_MTR0_REG,
+		fuel_gauge_reg_readb(info, AXP288_FG_CC_MTR0_REG));
+	seq_printf(s, " FG_OCV_CAP[%02x] : %02x\n",
+		AXP288_FG_OCV_CAP_REG,
+		fuel_gauge_reg_readb(info, AXP288_FG_OCV_CAP_REG));
+	seq_printf(s, "  FG_CC_CAP[%02x] : %02x\n",
+		AXP288_FG_CC_CAP_REG,
+		fuel_gauge_reg_readb(info, AXP288_FG_CC_CAP_REG));
+	seq_printf(s, " FG_LOW_CAP[%02x] : %02x\n",
+		AXP288_FG_LOW_CAP_REG,
+		fuel_gauge_reg_readb(info, AXP288_FG_LOW_CAP_REG));
+	seq_printf(s, "TUNING_CTL0[%02x] : %02x\n",
+		AXP288_FG_TUNE0,
+		fuel_gauge_reg_readb(info, AXP288_FG_TUNE0));
+	seq_printf(s, "TUNING_CTL1[%02x] : %02x\n",
+		AXP288_FG_TUNE1,
+		fuel_gauge_reg_readb(info, AXP288_FG_TUNE1));
+	seq_printf(s, "TUNING_CTL2[%02x] : %02x\n",
+		AXP288_FG_TUNE2,
+		fuel_gauge_reg_readb(info, AXP288_FG_TUNE2));
+	seq_printf(s, "TUNING_CTL3[%02x] : %02x\n",
+		AXP288_FG_TUNE3,
+		fuel_gauge_reg_readb(info, AXP288_FG_TUNE3));
+	seq_printf(s, "TUNING_CTL4[%02x] : %02x\n",
+		AXP288_FG_TUNE4,
+		fuel_gauge_reg_readb(info, AXP288_FG_TUNE4));
+	seq_printf(s, "TUNING_CTL5[%02x] : %02x\n",
+		AXP288_FG_TUNE5,
+		fuel_gauge_reg_readb(info, AXP288_FG_TUNE5));
+
+	ret = pmic_read_adc_val("axp288-batt-temp", &raw_val, info);
+	if (ret >= 0)
+		seq_printf(s, "axp288-batttemp : %d\n", raw_val);
+	ret = pmic_read_adc_val("axp288-pmic-temp", &raw_val, info);
+	if (ret >= 0)
+		seq_printf(s, "axp288-pmictemp : %d\n", raw_val);
+	ret = pmic_read_adc_val("axp288-system-temp", &raw_val, info);
+	if (ret >= 0)
+		seq_printf(s, "axp288-systtemp : %d\n", raw_val);
+	ret = pmic_read_adc_val("axp288-chrg-curr", &raw_val, info);
+	if (ret >= 0)
+		seq_printf(s, "axp288-chrgcurr : %d\n", raw_val);
+	ret = pmic_read_adc_val("axp288-chrg-d-curr", &raw_val, info);
+	if (ret >= 0)
+		seq_printf(s, "axp288-dchrgcur : %d\n", raw_val);
+	ret = pmic_read_adc_val("axp288-batt-volt", &raw_val, info);
+	if (ret >= 0)
+		seq_printf(s, "axp288-battvolt : %d\n", raw_val);
+
+	return 0;
+}
+
+static int debug_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, fuel_gauge_debug_show, inode->i_private);
+}
+
+static const struct file_operations fg_debug_fops = {
+	.open       = debug_open,
+	.read       = seq_read,
+	.llseek     = seq_lseek,
+	.release    = single_release,
+};
+
+static void fuel_gauge_create_debugfs(struct axp288_fg_info *info)
+{
+	info->debug_file = debugfs_create_file("fuelgauge", 0666, NULL,
+		info, &fg_debug_fops);
+}
+
+static void fuel_gauge_remove_debugfs(struct axp288_fg_info *info)
+{
+	debugfs_remove(info->debug_file);
+}
+#else
+static inline void fuel_gauge_create_debugfs(struct axp288_fg_info *info)
+{
+}
+static inline void fuel_gauge_remove_debugfs(struct axp288_fg_info *info)
+{
+}
+#endif
+
+static void fuel_gauge_get_status(struct axp288_fg_info *info)
+{
+	int pwr_stat, ret;
+	int charge, discharge;
+
+	pwr_stat = fuel_gauge_reg_readb(info, AXP20X_PWR_INPUT_STATUS);
+	if (pwr_stat < 0) {
+		dev_err(&info->pdev->dev,
+			"PWR STAT read failed:%d\n", pwr_stat);
+		return;
+	}
+	ret = pmic_read_adc_val("axp288-chrg-curr", &charge, info);
+	if (ret < 0) {
+		dev_err(&info->pdev->dev,
+			"ADC charge current read failed:%d\n", ret);
+		return;
+	}
+	ret = pmic_read_adc_val("axp288-chrg-d-curr", &discharge, info);
+	if (ret < 0) {
+		dev_err(&info->pdev->dev,
+			"ADC discharge current read failed:%d\n", ret);
+		return;
+	}
+
+	if (charge > 0)
+		info->status = POWER_SUPPLY_STATUS_CHARGING;
+	else if (discharge > 0)
+		info->status = POWER_SUPPLY_STATUS_DISCHARGING;
+	else {
+		if (pwr_stat & CHRG_STAT_BAT_PRESENT)
+			info->status = POWER_SUPPLY_STATUS_FULL;
+		else
+			info->status = POWER_SUPPLY_STATUS_NOT_CHARGING;
+	}
+}
+
+static int fuel_gauge_get_vbatt(struct axp288_fg_info *info, int *vbatt)
+{
+	int ret = 0, raw_val;
+
+	ret = pmic_read_adc_val("axp288-batt-volt", &raw_val, info);
+	if (ret < 0)
+		goto vbatt_read_fail;
+
+	*vbatt = VOLTAGE_FROM_ADC(raw_val);
+vbatt_read_fail:
+	return ret;
+}
+
+static int fuel_gauge_get_current(struct axp288_fg_info *info, int *cur)
+{
+	int ret, value = 0;
+	int charge, discharge;
+
+	ret = pmic_read_adc_val("axp288-chrg-curr", &charge, info);
+	if (ret < 0)
+		goto current_read_fail;
+	ret = pmic_read_adc_val("axp288-chrg-d-curr", &discharge, info);
+	if (ret < 0)
+		goto current_read_fail;
+
+	if (charge > 0)
+		value = charge;
+	else if (discharge > 0)
+		value = -1 * discharge;
+
+	*cur = value;
+current_read_fail:
+	return ret;
+}
+
+static int temp_to_adc(struct axp288_fg_info *info, int tval)
+{
+	int rntc = 0, i, ret, adc_val;
+	int rmin, rmax, tmin, tmax;
+	int tcsz = info->pdata->tcsz;
+
+	/* get the Rntc resitance value for this temp */
+	if (tval > info->pdata->thermistor_curve[0][1]) {
+		rntc = info->pdata->thermistor_curve[0][0];
+	} else if (tval <= info->pdata->thermistor_curve[tcsz-1][1]) {
+		rntc = info->pdata->thermistor_curve[tcsz-1][0];
+	} else {
+		for (i = 1; i < tcsz; i++) {
+			if (tval > info->pdata->thermistor_curve[i][1]) {
+				rmin = info->pdata->thermistor_curve[i-1][0];
+				rmax = info->pdata->thermistor_curve[i][0];
+				tmin = info->pdata->thermistor_curve[i-1][1];
+				tmax = info->pdata->thermistor_curve[i][1];
+				rntc = rmin + ((rmax - rmin) *
+					(tval - tmin) / (tmax - tmin));
+				break;
+			}
+		}
+	}
+
+	/* we need the current to calculate the proper adc voltage */
+	ret = fuel_gauge_reg_readb(info, AXP20X_ADC_RATE);
+	if (ret < 0) {
+		dev_err(&info->pdev->dev, "%s:read err:%d\n", __func__, ret);
+		ret = 0x30;
+	}
+
+	/*
+	 * temperature is proportional to NTS thermistor resistance
+	 * ADC_RATE[5-4] determines current, 00=20uA,01=40uA,10=60uA,11=80uA
+	 * [12-bit ADC VAL] = R_NTC(Ω) * current / 800
+	 */
+	adc_val = rntc * (20 + (20 * ((ret >> 4) & 0x3))) / 800;
+
+	return adc_val;
+}
+
+static int adc_to_temp(struct axp288_fg_info *info, int adc_val)
+{
+	int ret, r, i, tval = 0;
+	int rmin, rmax, tmin, tmax;
+	int tcsz = info->pdata->tcsz;
+
+	ret = fuel_gauge_reg_readb(info, AXP20X_ADC_RATE);
+	if (ret < 0) {
+		dev_err(&info->pdev->dev, "%s:read err:%d\n", __func__, ret);
+		ret = 0x30;
+	}
+
+	/*
+	 * temperature is proportional to NTS thermistor resistance
+	 * ADC_RATE[5-4] determines current, 00=20uA,01=40uA,10=60uA,11=80uA
+	 * R_NTC(Ω) = [12-bit ADC VAL] * 800 / current
+	 */
+	r = adc_val * 800 / (20 + (20 * ((ret >> 4) & 0x3)));
+
+	if (r < info->pdata->thermistor_curve[0][0]) {
+		tval = info->pdata->thermistor_curve[0][1];
+	} else if (r >= info->pdata->thermistor_curve[tcsz-1][0]) {
+		tval = info->pdata->thermistor_curve[tcsz-1][1];
+	} else {
+		for (i = 1; i < tcsz; i++) {
+			if (r < info->pdata->thermistor_curve[i][0]) {
+				rmin = info->pdata->thermistor_curve[i-1][0];
+				rmax = info->pdata->thermistor_curve[i][0];
+				tmin = info->pdata->thermistor_curve[i-1][1];
+				tmax = info->pdata->thermistor_curve[i][1];
+				tval = tmin + ((tmax - tmin) *
+					(r - rmin) / (rmax - rmin));
+				break;
+			}
+		}
+	}
+
+	return tval;
+}
+
+static int fuel_gauge_get_btemp(struct axp288_fg_info *info, int *btemp)
+{
+	int ret, raw_val = 0;
+
+	ret = pmic_read_adc_val("axp288-batt-temp", &raw_val, info);
+	if (ret < 0)
+		goto temp_read_fail;
+
+	*btemp = adc_to_temp(info, raw_val);
+
+temp_read_fail:
+	return ret;
+}
+
+static int fuel_gauge_get_vocv(struct axp288_fg_info *info, int *vocv)
+{
+	int ret, value;
+
+	/* 12-bit data value, upper 8 in OCVH, lower 4 in OCVL */
+	ret = fuel_gauge_reg_readb(info, AXP288_FG_OCVH_REG);
+	if (ret < 0)
+		goto vocv_read_fail;
+	value = ret << 4;
+
+	ret = fuel_gauge_reg_readb(info, AXP288_FG_OCVL_REG);
+	if (ret < 0)
+		goto vocv_read_fail;
+	value |= (ret & 0xf);
+
+	*vocv = VOLTAGE_FROM_ADC(value);
+vocv_read_fail:
+	return ret;
+}
+
+static int fuel_gauge_battery_health(struct axp288_fg_info *info)
+{
+	int temp, vocv;
+	int ret, health = POWER_SUPPLY_HEALTH_UNKNOWN;
+
+	ret = fuel_gauge_get_btemp(info, &temp);
+	if (ret < 0)
+		goto health_read_fail;
+
+	ret = fuel_gauge_get_vocv(info, &vocv);
+	if (ret < 0)
+		goto health_read_fail;
+
+	if (vocv > info->pdata->max_volt)
+		health = POWER_SUPPLY_HEALTH_OVERVOLTAGE;
+	else if (temp > info->pdata->max_temp)
+		health = POWER_SUPPLY_HEALTH_OVERHEAT;
+	else if (temp < info->pdata->min_temp)
+		health = POWER_SUPPLY_HEALTH_COLD;
+	else if (vocv < info->pdata->min_volt)
+		health = POWER_SUPPLY_HEALTH_DEAD;
+	else
+		health = POWER_SUPPLY_HEALTH_GOOD;
+
+health_read_fail:
+	return health;
+}
+
+static int fuel_gauge_set_high_btemp_alert(struct axp288_fg_info *info)
+{
+	int ret, adc_val;
+
+	/* program temperature threshold as 1/16 ADC value */
+	adc_val = temp_to_adc(info, info->pdata->max_temp);
+	ret = fuel_gauge_reg_writeb(info, AXP20X_V_HTF_DISCHRG, adc_val >> 4);
+
+	return ret;
+}
+
+static int fuel_gauge_set_low_btemp_alert(struct axp288_fg_info *info)
+{
+	int ret, adc_val;
+
+	/* program temperature threshold as 1/16 ADC value */
+	adc_val = temp_to_adc(info, info->pdata->min_temp);
+	ret = fuel_gauge_reg_writeb(info, AXP20X_V_LTF_DISCHRG, adc_val >> 4);
+
+	return ret;
+}
+
+static int fuel_gauge_get_property(struct power_supply *ps,
+		enum power_supply_property prop,
+		union power_supply_propval *val)
+{
+	struct axp288_fg_info *info = power_supply_get_drvdata(ps);
+	int ret = 0, value;
+
+	mutex_lock(&info->lock);
+	switch (prop) {
+	case POWER_SUPPLY_PROP_STATUS:
+		fuel_gauge_get_status(info);
+		val->intval = info->status;
+		break;
+	case POWER_SUPPLY_PROP_HEALTH:
+		val->intval = fuel_gauge_battery_health(info);
+		break;
+	case POWER_SUPPLY_PROP_VOLTAGE_NOW:
+		ret = fuel_gauge_get_vbatt(info, &value);
+		if (ret < 0)
+			goto fuel_gauge_read_err;
+		val->intval = PROP_VOLT(value);
+		break;
+	case POWER_SUPPLY_PROP_VOLTAGE_OCV:
+		ret = fuel_gauge_get_vocv(info, &value);
+		if (ret < 0)
+			goto fuel_gauge_read_err;
+		val->intval = PROP_VOLT(value);
+		break;
+	case POWER_SUPPLY_PROP_CURRENT_NOW:
+		ret = fuel_gauge_get_current(info, &value);
+		if (ret < 0)
+			goto fuel_gauge_read_err;
+		val->intval = PROP_CURR(value);
+		break;
+	case POWER_SUPPLY_PROP_PRESENT:
+		ret = fuel_gauge_reg_readb(info, AXP20X_PWR_OP_MODE);
+		if (ret < 0)
+			goto fuel_gauge_read_err;
+
+		if (ret & CHRG_STAT_BAT_PRESENT)
+			val->intval = 1;
+		else
+			val->intval = 0;
+		break;
+	case POWER_SUPPLY_PROP_CAPACITY:
+		ret = fuel_gauge_reg_readb(info, AXP20X_FG_RES);
+		if (ret < 0)
+			goto fuel_gauge_read_err;
+
+		if (!(ret & FG_REP_CAP_VALID))
+			dev_err(&info->pdev->dev,
+				"capacity measurement not valid\n");
+		val->intval = (ret & FG_REP_CAP_VAL_MASK);
+		break;
+	case POWER_SUPPLY_PROP_CAPACITY_ALERT_MIN:
+		ret = fuel_gauge_reg_readb(info, AXP288_FG_LOW_CAP_REG);
+		if (ret < 0)
+			goto fuel_gauge_read_err;
+		val->intval = (ret & 0x0f);
+		break;
+	case POWER_SUPPLY_PROP_TEMP:
+		ret = fuel_gauge_get_btemp(info, &value);
+		if (ret < 0)
+			goto fuel_gauge_read_err;
+		val->intval = PROP_TEMP(value);
+		break;
+	case POWER_SUPPLY_PROP_TEMP_MAX:
+	case POWER_SUPPLY_PROP_TEMP_ALERT_MAX:
+		val->intval = PROP_TEMP(info->pdata->max_temp);
+		break;
+	case POWER_SUPPLY_PROP_TEMP_MIN:
+	case POWER_SUPPLY_PROP_TEMP_ALERT_MIN:
+		val->intval = PROP_TEMP(info->pdata->min_temp);
+		break;
+	case POWER_SUPPLY_PROP_TECHNOLOGY:
+		val->intval = POWER_SUPPLY_TECHNOLOGY_LION;
+		break;
+	case POWER_SUPPLY_PROP_CHARGE_NOW:
+		ret = fuel_gauge_reg_readb(info, AXP288_FG_CC_MTR1_REG);
+		if (ret < 0)
+			goto fuel_gauge_read_err;
+
+		value = (ret & FG_CC_MTR1_VAL_MASK) << 8;
+		ret = fuel_gauge_reg_readb(info, AXP288_FG_CC_MTR0_REG);
+		if (ret < 0)
+			goto fuel_gauge_read_err;
+		value |= (ret & FG_CC_MTR0_VAL_MASK);
+		val->intval = value * FG_DES_CAP_RES_LSB;
+		break;
+	case POWER_SUPPLY_PROP_CHARGE_FULL:
+		ret = fuel_gauge_reg_readb(info, AXP288_FG_DES_CAP1_REG);
+		if (ret < 0)
+			goto fuel_gauge_read_err;
+
+		value = (ret & FG_DES_CAP1_VAL_MASK) << 8;
+		ret = fuel_gauge_reg_readb(info, AXP288_FG_DES_CAP0_REG);
+		if (ret < 0)
+			goto fuel_gauge_read_err;
+		value |= (ret & FG_DES_CAP0_VAL_MASK);
+		val->intval = value * FG_DES_CAP_RES_LSB;
+		break;
+	case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN:
+		val->intval = PROP_CURR(info->pdata->design_cap);
+		break;
+	case POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN:
+		val->intval = PROP_VOLT(info->pdata->max_volt);
+		break;
+	case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN:
+		val->intval = PROP_VOLT(info->pdata->min_volt);
+		break;
+	case POWER_SUPPLY_PROP_MODEL_NAME:
+		val->strval = info->pdata->battid;
+		break;
+	default:
+		mutex_unlock(&info->lock);
+		return -EINVAL;
+	}
+
+	mutex_unlock(&info->lock);
+	return 0;
+
+fuel_gauge_read_err:
+	mutex_unlock(&info->lock);
+	return ret;
+}
+
+static int fuel_gauge_set_property(struct power_supply *ps,
+		enum power_supply_property prop,
+		const union power_supply_propval *val)
+{
+	struct axp288_fg_info *info = power_supply_get_drvdata(ps);
+	int ret = 0;
+
+	mutex_lock(&info->lock);
+	switch (prop) {
+	case POWER_SUPPLY_PROP_STATUS:
+		info->status = val->intval;
+		break;
+	case POWER_SUPPLY_PROP_TEMP_MIN:
+	case POWER_SUPPLY_PROP_TEMP_ALERT_MIN:
+		if ((val->intval < PD_DEF_MIN_TEMP) ||
+			(val->intval > PD_DEF_MAX_TEMP)) {
+			ret = -EINVAL;
+			break;
+		}
+		info->pdata->min_temp = UNPROP_TEMP(val->intval);
+		ret = fuel_gauge_set_low_btemp_alert(info);
+		if (ret < 0)
+			dev_err(&info->pdev->dev,
+				"temp alert min set fail:%d\n", ret);
+		break;
+	case POWER_SUPPLY_PROP_TEMP_MAX:
+	case POWER_SUPPLY_PROP_TEMP_ALERT_MAX:
+		if ((val->intval < PD_DEF_MIN_TEMP) ||
+			(val->intval > PD_DEF_MAX_TEMP)) {
+			ret = -EINVAL;
+			break;
+		}
+		info->pdata->max_temp = UNPROP_TEMP(val->intval);
+		ret = fuel_gauge_set_high_btemp_alert(info);
+		if (ret < 0)
+			dev_err(&info->pdev->dev,
+				"temp alert max set fail:%d\n", ret);
+		break;
+	case POWER_SUPPLY_PROP_CAPACITY_ALERT_MIN:
+		if ((val->intval < 0) || (val->intval > 15)) {
+			ret = -EINVAL;
+			break;
+		}
+		ret = fuel_gauge_reg_readb(info, AXP288_FG_LOW_CAP_REG);
+		if (ret < 0)
+			break;
+		ret &= 0xf0;
+		ret |= (val->intval & 0xf);
+		ret = fuel_gauge_reg_writeb(info, AXP288_FG_LOW_CAP_REG, ret);
+		break;
+	default:
+		ret = -EINVAL;
+		break;
+	}
+
+	mutex_unlock(&info->lock);
+	return ret;
+}
+
+static int fuel_gauge_property_is_writeable(struct power_supply *psy,
+	enum power_supply_property psp)
+{
+	int ret;
+
+	switch (psp) {
+	case POWER_SUPPLY_PROP_STATUS:
+	case POWER_SUPPLY_PROP_TEMP_MIN:
+	case POWER_SUPPLY_PROP_TEMP_ALERT_MIN:
+	case POWER_SUPPLY_PROP_TEMP_MAX:
+	case POWER_SUPPLY_PROP_TEMP_ALERT_MAX:
+	case POWER_SUPPLY_PROP_CAPACITY_ALERT_MIN:
+		ret = 1;
+		break;
+	default:
+		ret = 0;
+	}
+
+	return ret;
+}
+
+static void fuel_gauge_status_monitor(struct work_struct *work)
+{
+	struct axp288_fg_info *info = container_of(work,
+		struct axp288_fg_info, status_monitor.work);
+
+	fuel_gauge_get_status(info);
+	power_supply_changed(info->bat);
+	schedule_delayed_work(&info->status_monitor, STATUS_MON_DELAY_JIFFIES);
+}
+
+static irqreturn_t fuel_gauge_thread_handler(int irq, void *dev)
+{
+	struct axp288_fg_info *info = dev;
+	int i;
+
+	for (i = 0; i < AXP288_FG_INTR_NUM; i++) {
+		if (info->irq[i] == irq)
+			break;
+	}
+
+	if (i >= AXP288_FG_INTR_NUM) {
+		dev_warn(&info->pdev->dev, "spurious interrupt!!\n");
+		return IRQ_NONE;
+	}
+
+	switch (i) {
+	case QWBTU_IRQ:
+		dev_info(&info->pdev->dev,
+			"Quit Battery under temperature in work mode IRQ (QWBTU)\n");
+		break;
+	case WBTU_IRQ:
+		dev_info(&info->pdev->dev,
+			"Battery under temperature in work mode IRQ (WBTU)\n");
+		break;
+	case QWBTO_IRQ:
+		dev_info(&info->pdev->dev,
+			"Quit Battery over temperature in work mode IRQ (QWBTO)\n");
+		break;
+	case WBTO_IRQ:
+		dev_info(&info->pdev->dev,
+			"Battery over temperature in work mode IRQ (WBTO)\n");
+		break;
+	case WL2_IRQ:
+		dev_info(&info->pdev->dev, "Low Batt Warning(2) INTR\n");
+		break;
+	case WL1_IRQ:
+		dev_info(&info->pdev->dev, "Low Batt Warning(1) INTR\n");
+		break;
+	default:
+		dev_warn(&info->pdev->dev, "Spurious Interrupt!!!\n");
+	}
+
+	power_supply_changed(info->bat);
+	return IRQ_HANDLED;
+}
+
+static void fuel_gauge_external_power_changed(struct power_supply *psy)
+{
+	struct axp288_fg_info *info = power_supply_get_drvdata(psy);
+
+	power_supply_changed(info->bat);
+}
+
+static const struct power_supply_desc fuel_gauge_desc = {
+	.name			= DEV_NAME,
+	.type			= POWER_SUPPLY_TYPE_BATTERY,
+	.properties		= fuel_gauge_props,
+	.num_properties		= ARRAY_SIZE(fuel_gauge_props),
+	.get_property		= fuel_gauge_get_property,
+	.set_property		= fuel_gauge_set_property,
+	.property_is_writeable	= fuel_gauge_property_is_writeable,
+	.external_power_changed	= fuel_gauge_external_power_changed,
+};
+
+static int fuel_gauge_set_lowbatt_thresholds(struct axp288_fg_info *info)
+{
+	int ret;
+	u8 reg_val;
+
+	ret = fuel_gauge_reg_readb(info, AXP20X_FG_RES);
+	if (ret < 0) {
+		dev_err(&info->pdev->dev, "%s:read err:%d\n", __func__, ret);
+		return ret;
+	}
+	ret = (ret & FG_REP_CAP_VAL_MASK);
+
+	if (ret > FG_LOW_CAP_WARN_THR)
+		reg_val = FG_LOW_CAP_WARN_THR;
+	else if (ret > FG_LOW_CAP_CRIT_THR)
+		reg_val = FG_LOW_CAP_CRIT_THR;
+	else
+		reg_val = FG_LOW_CAP_SHDN_THR;
+
+	reg_val |= FG_LOW_CAP_THR1_VAL;
+	ret = fuel_gauge_reg_writeb(info, AXP288_FG_LOW_CAP_REG, reg_val);
+	if (ret < 0)
+		dev_err(&info->pdev->dev, "%s:write err:%d\n", __func__, ret);
+
+	return ret;
+}
+
+static int fuel_gauge_program_vbatt_full(struct axp288_fg_info *info)
+{
+	int ret;
+	u8 val;
+
+	ret = fuel_gauge_reg_readb(info, AXP20X_CHRG_CTRL1);
+	if (ret < 0)
+		goto fg_prog_ocv_fail;
+	else
+		val = (ret & ~CHRG_CCCV_CV_MASK);
+
+	switch (info->pdata->max_volt) {
+	case CV_4100:
+		val |= (CHRG_CCCV_CV_4100MV << CHRG_CCCV_CV_BIT_POS);
+		break;
+	case CV_4150:
+		val |= (CHRG_CCCV_CV_4150MV << CHRG_CCCV_CV_BIT_POS);
+		break;
+	case CV_4200:
+		val |= (CHRG_CCCV_CV_4200MV << CHRG_CCCV_CV_BIT_POS);
+		break;
+	case CV_4350:
+		val |= (CHRG_CCCV_CV_4350MV << CHRG_CCCV_CV_BIT_POS);
+		break;
+	default:
+		val |= (CHRG_CCCV_CV_4200MV << CHRG_CCCV_CV_BIT_POS);
+		break;
+	}
+
+	ret = fuel_gauge_reg_writeb(info, AXP20X_CHRG_CTRL1, val);
+fg_prog_ocv_fail:
+	return ret;
+}
+
+static int fuel_gauge_program_design_cap(struct axp288_fg_info *info)
+{
+	int ret;
+
+	ret = fuel_gauge_reg_writeb(info,
+		AXP288_FG_DES_CAP1_REG, info->pdata->cap1);
+	if (ret < 0)
+		goto fg_prog_descap_fail;
+
+	ret = fuel_gauge_reg_writeb(info,
+		AXP288_FG_DES_CAP0_REG, info->pdata->cap0);
+
+fg_prog_descap_fail:
+	return ret;
+}
+
+static int fuel_gauge_program_ocv_curve(struct axp288_fg_info *info)
+{
+	int ret = 0, i;
+
+	for (i = 0; i < OCV_CURVE_SIZE; i++) {
+		ret = fuel_gauge_reg_writeb(info,
+			AXP288_FG_OCV_CURVE_REG + i, info->pdata->ocv_curve[i]);
+		if (ret < 0)
+			goto fg_prog_ocv_fail;
+	}
+
+fg_prog_ocv_fail:
+	return ret;
+}
+
+static int fuel_gauge_program_rdc_vals(struct axp288_fg_info *info)
+{
+	int ret;
+
+	ret = fuel_gauge_reg_writeb(info,
+		AXP288_FG_RDC1_REG, info->pdata->rdc1);
+	if (ret < 0)
+		goto fg_prog_ocv_fail;
+
+	ret = fuel_gauge_reg_writeb(info,
+		AXP288_FG_RDC0_REG, info->pdata->rdc0);
+
+fg_prog_ocv_fail:
+	return ret;
+}
+
+static void fuel_gauge_init_config_regs(struct axp288_fg_info *info)
+{
+	int ret;
+
+	/*
+	 * check if the config data is already
+	 * programmed and if so just return.
+	 */
+
+	ret = fuel_gauge_reg_readb(info, AXP288_FG_DES_CAP1_REG);
+	if (ret < 0) {
+		dev_warn(&info->pdev->dev, "CAP1 reg read err!!\n");
+	} else if (!(ret & FG_DES_CAP1_VALID)) {
+		dev_info(&info->pdev->dev, "FG data needs to be initialized\n");
+	} else {
+		dev_info(&info->pdev->dev, "FG data is already initialized\n");
+		return;
+	}
+
+	ret = fuel_gauge_program_vbatt_full(info);
+	if (ret < 0)
+		dev_err(&info->pdev->dev, "set vbatt full fail:%d\n", ret);
+
+	ret = fuel_gauge_program_design_cap(info);
+	if (ret < 0)
+		dev_err(&info->pdev->dev, "set design cap fail:%d\n", ret);
+
+	ret = fuel_gauge_program_rdc_vals(info);
+	if (ret < 0)
+		dev_err(&info->pdev->dev, "set rdc fail:%d\n", ret);
+
+	ret = fuel_gauge_program_ocv_curve(info);
+	if (ret < 0)
+		dev_err(&info->pdev->dev, "set ocv curve fail:%d\n", ret);
+
+	ret = fuel_gauge_set_lowbatt_thresholds(info);
+	if (ret < 0)
+		dev_err(&info->pdev->dev, "lowbatt thr set fail:%d\n", ret);
+
+	ret = fuel_gauge_reg_writeb(info, AXP20X_CC_CTRL, 0xef);
+	if (ret < 0)
+		dev_err(&info->pdev->dev, "gauge cntl set fail:%d\n", ret);
+}
+
+static void fuel_gauge_init_irq(struct axp288_fg_info *info)
+{
+	int ret, i, pirq;
+
+	for (i = 0; i < AXP288_FG_INTR_NUM; i++) {
+		pirq = platform_get_irq(info->pdev, i);
+		info->irq[i] = regmap_irq_get_virq(info->regmap_irqc, pirq);
+		if (info->irq[i] < 0) {
+			dev_warn(&info->pdev->dev,
+				"regmap_irq get virq failed for IRQ %d: %d\n",
+				pirq, info->irq[i]);
+			info->irq[i] = -1;
+			goto intr_failed;
+		}
+		ret = request_threaded_irq(info->irq[i],
+				NULL, fuel_gauge_thread_handler,
+				IRQF_ONESHOT, DEV_NAME, info);
+		if (ret) {
+			dev_warn(&info->pdev->dev,
+				"request irq failed for IRQ %d: %d\n",
+				pirq, info->irq[i]);
+			info->irq[i] = -1;
+			goto intr_failed;
+		} else {
+			dev_info(&info->pdev->dev, "HW IRQ %d -> VIRQ %d\n",
+				pirq, info->irq[i]);
+		}
+	}
+	return;
+
+intr_failed:
+	for (; i > 0; i--) {
+		free_irq(info->irq[i - 1], info);
+		info->irq[i - 1] = -1;
+	}
+}
+
+static void fuel_gauge_init_hw_regs(struct axp288_fg_info *info)
+{
+	int ret;
+	unsigned int val;
+
+	ret = fuel_gauge_set_high_btemp_alert(info);
+	if (ret < 0)
+		dev_err(&info->pdev->dev, "high batt temp set fail:%d\n", ret);
+
+	ret = fuel_gauge_set_low_btemp_alert(info);
+	if (ret < 0)
+		dev_err(&info->pdev->dev, "low batt temp set fail:%d\n", ret);
+
+	/* enable interrupts */
+	val = fuel_gauge_reg_readb(info, AXP20X_IRQ3_EN);
+	val |= TEMP_IRQ_CFG_MASK;
+	fuel_gauge_reg_writeb(info, AXP20X_IRQ3_EN, val);
+
+	val = fuel_gauge_reg_readb(info, AXP20X_IRQ4_EN);
+	val |= FG_IRQ_CFG_LOWBATT_MASK;
+	val = fuel_gauge_reg_writeb(info, AXP20X_IRQ4_EN, val);
+}
+
+static int axp288_fuel_gauge_probe(struct platform_device *pdev)
+{
+	int ret = 0;
+	struct axp288_fg_info *info;
+	struct axp20x_dev *axp20x = dev_get_drvdata(pdev->dev.parent);
+	struct power_supply_config psy_cfg = {};
+
+	info = devm_kzalloc(&pdev->dev, sizeof(*info), GFP_KERNEL);
+	if (!info)
+		return -ENOMEM;
+
+	info->pdev = pdev;
+	info->regmap = axp20x->regmap;
+	info->regmap_irqc = axp20x->regmap_irqc;
+	info->status = POWER_SUPPLY_STATUS_UNKNOWN;
+	info->pdata = pdev->dev.platform_data;
+	if (!info->pdata)
+		return -ENODEV;
+
+	platform_set_drvdata(pdev, info);
+
+	mutex_init(&info->lock);
+	INIT_DELAYED_WORK(&info->status_monitor, fuel_gauge_status_monitor);
+
+	psy_cfg.drv_data = info;
+	info->bat = power_supply_register(&pdev->dev, &fuel_gauge_desc, &psy_cfg);
+	if (IS_ERR(info->bat)) {
+		ret = PTR_ERR(info->bat);
+		dev_err(&pdev->dev, "failed to register battery: %d\n", ret);
+		return ret;
+	}
+
+	fuel_gauge_create_debugfs(info);
+	fuel_gauge_init_config_regs(info);
+	fuel_gauge_init_irq(info);
+	fuel_gauge_init_hw_regs(info);
+	schedule_delayed_work(&info->status_monitor, STATUS_MON_DELAY_JIFFIES);
+
+	return ret;
+}
+
+static struct platform_device_id axp288_fg_id_table[] = {
+	{ .name = DEV_NAME },
+	{},
+};
+
+static int axp288_fuel_gauge_remove(struct platform_device *pdev)
+{
+	struct axp288_fg_info *info = platform_get_drvdata(pdev);
+	int i;
+
+	cancel_delayed_work_sync(&info->status_monitor);
+	power_supply_unregister(info->bat);
+	fuel_gauge_remove_debugfs(info);
+
+	for (i = 0; i < AXP288_FG_INTR_NUM; i++)
+		if (info->irq[i] >= 0)
+			free_irq(info->irq[i], info);
+
+	return 0;
+}
+
+static struct platform_driver axp288_fuel_gauge_driver = {
+	.probe = axp288_fuel_gauge_probe,
+	.remove = axp288_fuel_gauge_remove,
+	.id_table = axp288_fg_id_table,
+	.driver = {
+		.name = DEV_NAME,
+	},
+};
+
+module_platform_driver(axp288_fuel_gauge_driver);
+
+MODULE_AUTHOR("Todd Brandt <todd.e.brandt@linux.intel.com>");
+MODULE_DESCRIPTION("Xpower AXP288 Fuel Gauge Driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/power/bq2415x_charger.c b/drivers/power/bq2415x_charger.c
index 1f49986..6c534dc 100644
--- a/drivers/power/bq2415x_charger.c
+++ b/drivers/power/bq2415x_charger.c
@@ -13,12 +13,6 @@
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-/*
  * Datasheets:
  * http://www.ti.com/product/bq24150
  * http://www.ti.com/product/bq24150a
@@ -26,6 +20,8 @@
  * http://www.ti.com/product/bq24153
  * http://www.ti.com/product/bq24153a
  * http://www.ti.com/product/bq24155
+ * http://www.ti.com/product/bq24157s
+ * http://www.ti.com/product/bq24158
  */
 
 #include <linux/kernel.h>
@@ -147,6 +143,7 @@ enum bq2415x_chip {
 	BQ24155,
 	BQ24156,
 	BQ24156A,
+	BQ24157S,
 	BQ24158,
 };
 
@@ -162,18 +159,20 @@ static char *bq2415x_chip_name[] = {
 	"bq24155",
 	"bq24156",
 	"bq24156a",
+	"bq24157s",
 	"bq24158",
 };
 
 struct bq2415x_device {
 	struct device *dev;
 	struct bq2415x_platform_data init_data;
-	struct power_supply charger;
+	struct power_supply *charger;
+	struct power_supply_desc charger_desc;
 	struct delayed_work work;
 	struct power_supply *notify_psy;
 	struct notifier_block nb;
 	enum bq2415x_mode reported_mode;/* mode reported by hook function */
-	enum bq2415x_mode mode;		/* current configured mode */
+	enum bq2415x_mode mode;		/* currently configured mode */
 	enum bq2415x_chip chip;
 	const char *timer_error;
 	char *model;
@@ -352,8 +351,7 @@ static int bq2415x_exec_command(struct bq2415x_device *bq,
 			BQ2415X_BIT_CE);
 		if (ret < 0)
 			return ret;
-		else
-			return ret > 0 ? 0 : 1;
+		return ret > 0 ? 0 : 1;
 	case BQ2415X_CHARGER_ENABLE:
 		return bq2415x_i2c_write_bit(bq, BQ2415X_REG_CONTROL,
 				0, BQ2415X_BIT_CE);
@@ -426,20 +424,17 @@ static enum bq2415x_chip bq2415x_detect_chip(struct bq2415x_device *bq)
 		case 0:
 			if (bq->chip == BQ24151A)
 				return bq->chip;
-			else
-				return BQ24151;
+			return BQ24151;
 		case 1:
 			if (bq->chip == BQ24150A ||
 				bq->chip == BQ24152 ||
 				bq->chip == BQ24155)
 				return bq->chip;
-			else
-				return BQ24150;
+			return BQ24150;
 		case 2:
 			if (bq->chip == BQ24153A)
 				return bq->chip;
-			else
-				return BQ24153;
+			return BQ24153;
 		default:
 			return BQUNKNOWN;
 		}
@@ -450,9 +445,10 @@ static enum bq2415x_chip bq2415x_detect_chip(struct bq2415x_device *bq)
 		case 0:
 			if (bq->chip == BQ24156A)
 				return bq->chip;
-			else
-				return BQ24156;
+			return BQ24156;
 		case 2:
+			if (bq->chip == BQ24157S)
+				return bq->chip;
 			return BQ24158;
 		default:
 			return BQUNKNOWN;
@@ -480,24 +476,22 @@ static int bq2415x_detect_revision(struct bq2415x_device *bq)
 	case BQ24152:
 		if (ret >= 0 && ret <= 3)
 			return ret;
-		else
-			return -1;
+		return -1;
 	case BQ24153:
 	case BQ24153A:
 	case BQ24156:
 	case BQ24156A:
+	case BQ24157S:
 	case BQ24158:
 		if (ret == 3)
 			return 0;
 		else if (ret == 1)
 			return 1;
-		else
-			return -1;
+		return -1;
 	case BQ24155:
 		if (ret == 3)
 			return 3;
-		else
-			return -1;
+		return -1;
 	case BQUNKNOWN:
 		return -1;
 	}
@@ -791,7 +785,7 @@ static int bq2415x_set_mode(struct bq2415x_device *bq, enum bq2415x_mode mode)
 	bq2415x_set_default_value(bq, battery_regulation_voltage);
 
 	bq->mode = mode;
-	sysfs_notify(&bq->charger.dev->kobj, NULL, "mode");
+	sysfs_notify(&bq->charger->dev.kobj, NULL, "mode");
 
 	return 0;
 
@@ -816,7 +810,8 @@ static int bq2415x_notifier_call(struct notifier_block *nb,
 
 	dev_dbg(bq->dev, "notifier call was called\n");
 
-	ret = psy->get_property(psy, POWER_SUPPLY_PROP_CURRENT_MAX, &prop);
+	ret = power_supply_get_property(psy, POWER_SUPPLY_PROP_CURRENT_MAX,
+			&prop);
 	if (ret != 0)
 		return NOTIFY_OK;
 
@@ -874,7 +869,7 @@ static void bq2415x_set_autotimer(struct bq2415x_device *bq, int state)
 static void bq2415x_timer_error(struct bq2415x_device *bq, const char *msg)
 {
 	bq->timer_error = msg;
-	sysfs_notify(&bq->charger.dev->kobj, NULL, "timer");
+	sysfs_notify(&bq->charger->dev.kobj, NULL, "timer");
 	dev_err(bq->dev, "%s\n", msg);
 	if (bq->automode > 0)
 		bq->automode = 0;
@@ -892,7 +887,7 @@ static void bq2415x_timer_work(struct work_struct *work)
 	int boost;
 
 	if (bq->automode > 0 && (bq->reported_mode != bq->mode)) {
-		sysfs_notify(&bq->charger.dev->kobj, NULL, "reported_mode");
+		sysfs_notify(&bq->charger->dev.kobj, NULL, "reported_mode");
 		bq2415x_set_mode(bq, bq->reported_mode);
 	}
 
@@ -998,8 +993,7 @@ static int bq2415x_power_supply_get_property(struct power_supply *psy,
 					     enum power_supply_property psp,
 					     union power_supply_propval *val)
 {
-	struct bq2415x_device *bq = container_of(psy, struct bq2415x_device,
-						 charger);
+	struct bq2415x_device *bq = power_supply_get_drvdata(psy);
 	int ret;
 
 	switch (psp) {
@@ -1030,12 +1024,14 @@ static int bq2415x_power_supply_init(struct bq2415x_device *bq)
 	int ret;
 	int chip;
 	char revstr[8];
+	struct power_supply_config psy_cfg = { .drv_data = bq, };
 
-	bq->charger.name = bq->name;
-	bq->charger.type = POWER_SUPPLY_TYPE_USB;
-	bq->charger.properties = bq2415x_power_supply_props;
-	bq->charger.num_properties = ARRAY_SIZE(bq2415x_power_supply_props);
-	bq->charger.get_property = bq2415x_power_supply_get_property;
+	bq->charger_desc.name = bq->name;
+	bq->charger_desc.type = POWER_SUPPLY_TYPE_USB;
+	bq->charger_desc.properties = bq2415x_power_supply_props;
+	bq->charger_desc.num_properties =
+			ARRAY_SIZE(bq2415x_power_supply_props);
+	bq->charger_desc.get_property = bq2415x_power_supply_get_property;
 
 	ret = bq2415x_detect_chip(bq);
 	if (ret < 0)
@@ -1058,10 +1054,11 @@ static int bq2415x_power_supply_init(struct bq2415x_device *bq)
 		return -ENOMEM;
 	}
 
-	ret = power_supply_register(bq->dev, &bq->charger);
-	if (ret) {
+	bq->charger = power_supply_register(bq->dev, &bq->charger_desc,
+					    &psy_cfg);
+	if (IS_ERR(bq->charger)) {
 		kfree(bq->model);
-		return ret;
+		return PTR_ERR(bq->charger);
 	}
 
 	return 0;
@@ -1073,7 +1070,7 @@ static void bq2415x_power_supply_exit(struct bq2415x_device *bq)
 	if (bq->automode > 0)
 		bq->automode = 0;
 	cancel_delayed_work_sync(&bq->work);
-	power_supply_unregister(&bq->charger);
+	power_supply_unregister(bq->charger);
 	kfree(bq->model);
 }
 
@@ -1085,8 +1082,7 @@ static ssize_t bq2415x_sysfs_show_status(struct device *dev,
 					 char *buf)
 {
 	struct power_supply *psy = dev_get_drvdata(dev);
-	struct bq2415x_device *bq = container_of(psy, struct bq2415x_device,
-						charger);
+	struct bq2415x_device *bq = power_supply_get_drvdata(psy);
 	enum bq2415x_command command;
 	int ret;
 
@@ -1119,8 +1115,7 @@ static ssize_t bq2415x_sysfs_set_timer(struct device *dev,
 				       size_t count)
 {
 	struct power_supply *psy = dev_get_drvdata(dev);
-	struct bq2415x_device *bq = container_of(psy, struct bq2415x_device,
-						charger);
+	struct bq2415x_device *bq = power_supply_get_drvdata(psy);
 	int ret = 0;
 
 	if (strncmp(buf, "auto", 4) == 0)
@@ -1141,8 +1136,7 @@ static ssize_t bq2415x_sysfs_show_timer(struct device *dev,
 					char *buf)
 {
 	struct power_supply *psy = dev_get_drvdata(dev);
-	struct bq2415x_device *bq = container_of(psy, struct bq2415x_device,
-						 charger);
+	struct bq2415x_device *bq = power_supply_get_drvdata(psy);
 
 	if (bq->timer_error)
 		return sprintf(buf, "%s\n", bq->timer_error);
@@ -1166,8 +1160,7 @@ static ssize_t bq2415x_sysfs_set_mode(struct device *dev,
 				      size_t count)
 {
 	struct power_supply *psy = dev_get_drvdata(dev);
-	struct bq2415x_device *bq = container_of(psy, struct bq2415x_device,
-						 charger);
+	struct bq2415x_device *bq = power_supply_get_drvdata(psy);
 	enum bq2415x_mode mode;
 	int ret = 0;
 
@@ -1219,8 +1212,7 @@ static ssize_t bq2415x_sysfs_show_mode(struct device *dev,
 				       char *buf)
 {
 	struct power_supply *psy = dev_get_drvdata(dev);
-	struct bq2415x_device *bq = container_of(psy, struct bq2415x_device,
-						charger);
+	struct bq2415x_device *bq = power_supply_get_drvdata(psy);
 	ssize_t ret = 0;
 
 	if (bq->automode > 0)
@@ -1257,8 +1249,7 @@ static ssize_t bq2415x_sysfs_show_reported_mode(struct device *dev,
 						char *buf)
 {
 	struct power_supply *psy = dev_get_drvdata(dev);
-	struct bq2415x_device *bq = container_of(psy, struct bq2415x_device,
-						 charger);
+	struct bq2415x_device *bq = power_supply_get_drvdata(psy);
 
 	if (bq->automode < 0)
 		return -EINVAL;
@@ -1286,8 +1277,7 @@ static ssize_t bq2415x_sysfs_set_registers(struct device *dev,
 					   size_t count)
 {
 	struct power_supply *psy = dev_get_drvdata(dev);
-	struct bq2415x_device *bq = container_of(psy, struct bq2415x_device,
-						 charger);
+	struct bq2415x_device *bq = power_supply_get_drvdata(psy);
 	ssize_t ret = 0;
 	unsigned int reg;
 	unsigned int val;
@@ -1322,8 +1312,7 @@ static ssize_t bq2415x_sysfs_show_registers(struct device *dev,
 					    char *buf)
 {
 	struct power_supply *psy = dev_get_drvdata(dev);
-	struct bq2415x_device *bq = container_of(psy, struct bq2415x_device,
-						 charger);
+	struct bq2415x_device *bq = power_supply_get_drvdata(psy);
 	ssize_t ret = 0;
 
 	ret += bq2415x_sysfs_print_reg(bq, BQ2415X_REG_STATUS, buf+ret);
@@ -1341,8 +1330,7 @@ static ssize_t bq2415x_sysfs_set_limit(struct device *dev,
 				       size_t count)
 {
 	struct power_supply *psy = dev_get_drvdata(dev);
-	struct bq2415x_device *bq = container_of(psy, struct bq2415x_device,
-						 charger);
+	struct bq2415x_device *bq = power_supply_get_drvdata(psy);
 	long val;
 	int ret;
 
@@ -1373,8 +1361,7 @@ static ssize_t bq2415x_sysfs_show_limit(struct device *dev,
 					char *buf)
 {
 	struct power_supply *psy = dev_get_drvdata(dev);
-	struct bq2415x_device *bq = container_of(psy, struct bq2415x_device,
-						 charger);
+	struct bq2415x_device *bq = power_supply_get_drvdata(psy);
 	int ret;
 
 	if (strcmp(attr->attr.name, "current_limit") == 0)
@@ -1402,8 +1389,7 @@ static ssize_t bq2415x_sysfs_set_enable(struct device *dev,
 					size_t count)
 {
 	struct power_supply *psy = dev_get_drvdata(dev);
-	struct bq2415x_device *bq = container_of(psy, struct bq2415x_device,
-						 charger);
+	struct bq2415x_device *bq = power_supply_get_drvdata(psy);
 	enum bq2415x_command command;
 	long val;
 	int ret;
@@ -1438,8 +1424,7 @@ static ssize_t bq2415x_sysfs_show_enable(struct device *dev,
 					 char *buf)
 {
 	struct power_supply *psy = dev_get_drvdata(dev);
-	struct bq2415x_device *bq = container_of(psy, struct bq2415x_device,
-						 charger);
+	struct bq2415x_device *bq = power_supply_get_drvdata(psy);
 	enum bq2415x_command command;
 	int ret;
 
@@ -1530,13 +1515,13 @@ static const struct attribute_group bq2415x_sysfs_attr_group = {
 
 static int bq2415x_sysfs_init(struct bq2415x_device *bq)
 {
-	return sysfs_create_group(&bq->charger.dev->kobj,
+	return sysfs_create_group(&bq->charger->dev.kobj,
 			&bq2415x_sysfs_attr_group);
 }
 
 static void bq2415x_sysfs_exit(struct bq2415x_device *bq)
 {
-	sysfs_remove_group(&bq->charger.dev->kobj, &bq2415x_sysfs_attr_group);
+	sysfs_remove_group(&bq->charger->dev.kobj, &bq2415x_sysfs_attr_group);
 }
 
 /* main bq2415x probe function */
@@ -1609,27 +1594,27 @@ static int bq2415x_probe(struct i2c_client *client,
 		ret = of_property_read_u32(np, "ti,current-limit",
 				&bq->init_data.current_limit);
 		if (ret)
-			goto error_2;
+			goto error_3;
 		ret = of_property_read_u32(np, "ti,weak-battery-voltage",
 				&bq->init_data.weak_battery_voltage);
 		if (ret)
-			goto error_2;
+			goto error_3;
 		ret = of_property_read_u32(np, "ti,battery-regulation-voltage",
 				&bq->init_data.battery_regulation_voltage);
 		if (ret)
-			goto error_2;
+			goto error_3;
 		ret = of_property_read_u32(np, "ti,charge-current",
 				&bq->init_data.charge_current);
 		if (ret)
-			goto error_2;
+			goto error_3;
 		ret = of_property_read_u32(np, "ti,termination-current",
 				&bq->init_data.termination_current);
 		if (ret)
-			goto error_2;
+			goto error_3;
 		ret = of_property_read_u32(np, "ti,resistor-sense",
 				&bq->init_data.resistor_sense);
 		if (ret)
-			goto error_2;
+			goto error_3;
 	} else {
 		memcpy(&bq->init_data, pdata, sizeof(bq->init_data));
 	}
@@ -1639,19 +1624,19 @@ static int bq2415x_probe(struct i2c_client *client,
 	ret = bq2415x_power_supply_init(bq);
 	if (ret) {
 		dev_err(bq->dev, "failed to register power supply: %d\n", ret);
-		goto error_2;
+		goto error_3;
 	}
 
 	ret = bq2415x_sysfs_init(bq);
 	if (ret) {
 		dev_err(bq->dev, "failed to create sysfs entries: %d\n", ret);
-		goto error_3;
+		goto error_4;
 	}
 
 	ret = bq2415x_set_defaults(bq);
 	if (ret) {
 		dev_err(bq->dev, "failed to set default values: %d\n", ret);
-		goto error_4;
+		goto error_5;
 	}
 
 	if (bq->notify_psy) {
@@ -1659,7 +1644,7 @@ static int bq2415x_probe(struct i2c_client *client,
 		ret = power_supply_reg_notifier(&bq->nb);
 		if (ret) {
 			dev_err(bq->dev, "failed to reg notifier: %d\n", ret);
-			goto error_5;
+			goto error_6;
 		}
 
 		/* Query for initial reported_mode and set it */
@@ -1679,11 +1664,14 @@ static int bq2415x_probe(struct i2c_client *client,
 	dev_info(bq->dev, "driver registered\n");
 	return 0;
 
+error_6:
 error_5:
-error_4:
 	bq2415x_sysfs_exit(bq);
-error_3:
+error_4:
 	bq2415x_power_supply_exit(bq);
+error_3:
+	if (bq->notify_psy)
+		power_supply_put(bq->notify_psy);
 error_2:
 	kfree(name);
 error_1:
@@ -1700,8 +1688,10 @@ static int bq2415x_remove(struct i2c_client *client)
 {
 	struct bq2415x_device *bq = i2c_get_clientdata(client);
 
-	if (bq->notify_psy)
+	if (bq->notify_psy) {
 		power_supply_unreg_notifier(&bq->nb);
+		power_supply_put(bq->notify_psy);
+	}
 
 	bq2415x_sysfs_exit(bq);
 	bq2415x_power_supply_exit(bq);
@@ -1731,6 +1721,7 @@ static const struct i2c_device_id bq2415x_i2c_id_table[] = {
 	{ "bq24155", BQ24155 },
 	{ "bq24156", BQ24156 },
 	{ "bq24156a", BQ24156A },
+	{ "bq24157s", BQ24157S },
 	{ "bq24158", BQ24158 },
 	{},
 };
diff --git a/drivers/power/bq24190_charger.c b/drivers/power/bq24190_charger.c
index d0e8236..407c4af 100644
--- a/drivers/power/bq24190_charger.c
+++ b/drivers/power/bq24190_charger.c
@@ -152,8 +152,8 @@
 struct bq24190_dev_info {
 	struct i2c_client		*client;
 	struct device			*dev;
-	struct power_supply		charger;
-	struct power_supply		battery;
+	struct power_supply		*charger;
+	struct power_supply		*battery;
 	char				model_name[I2C_NAME_SIZE];
 	kernel_ulong_t			model;
 	unsigned int			gpio_int;
@@ -423,8 +423,7 @@ static ssize_t bq24190_sysfs_show(struct device *dev,
 		struct device_attribute *attr, char *buf)
 {
 	struct power_supply *psy = dev_get_drvdata(dev);
-	struct bq24190_dev_info *bdi =
-			container_of(psy, struct bq24190_dev_info, charger);
+	struct bq24190_dev_info *bdi = power_supply_get_drvdata(psy);
 	struct bq24190_sysfs_field_info *info;
 	int ret;
 	u8 v;
@@ -444,8 +443,7 @@ static ssize_t bq24190_sysfs_store(struct device *dev,
 		struct device_attribute *attr, const char *buf, size_t count)
 {
 	struct power_supply *psy = dev_get_drvdata(dev);
-	struct bq24190_dev_info *bdi =
-			container_of(psy, struct bq24190_dev_info, charger);
+	struct bq24190_dev_info *bdi = power_supply_get_drvdata(psy);
 	struct bq24190_sysfs_field_info *info;
 	int ret;
 	u8 v;
@@ -469,13 +467,13 @@ static int bq24190_sysfs_create_group(struct bq24190_dev_info *bdi)
 {
 	bq24190_sysfs_init_attrs();
 
-	return sysfs_create_group(&bdi->charger.dev->kobj,
+	return sysfs_create_group(&bdi->charger->dev.kobj,
 			&bq24190_sysfs_attr_group);
 }
 
 static void bq24190_sysfs_remove_group(struct bq24190_dev_info *bdi)
 {
-	sysfs_remove_group(&bdi->charger.dev->kobj, &bq24190_sysfs_attr_group);
+	sysfs_remove_group(&bdi->charger->dev.kobj, &bq24190_sysfs_attr_group);
 }
 #else
 static int bq24190_sysfs_create_group(struct bq24190_dev_info *bdi)
@@ -807,8 +805,7 @@ static int bq24190_charger_set_voltage(struct bq24190_dev_info *bdi,
 static int bq24190_charger_get_property(struct power_supply *psy,
 		enum power_supply_property psp, union power_supply_propval *val)
 {
-	struct bq24190_dev_info *bdi =
-			container_of(psy, struct bq24190_dev_info, charger);
+	struct bq24190_dev_info *bdi = power_supply_get_drvdata(psy);
 	int ret;
 
 	dev_dbg(bdi->dev, "prop: %d\n", psp);
@@ -861,8 +858,7 @@ static int bq24190_charger_set_property(struct power_supply *psy,
 		enum power_supply_property psp,
 		const union power_supply_propval *val)
 {
-	struct bq24190_dev_info *bdi =
-			container_of(psy, struct bq24190_dev_info, charger);
+	struct bq24190_dev_info *bdi = power_supply_get_drvdata(psy);
 	int ret;
 
 	dev_dbg(bdi->dev, "prop: %d\n", psp);
@@ -922,18 +918,15 @@ static char *bq24190_charger_supplied_to[] = {
 	"main-battery",
 };
 
-static void bq24190_charger_init(struct power_supply *charger)
-{
-	charger->name = "bq24190-charger";
-	charger->type = POWER_SUPPLY_TYPE_USB;
-	charger->properties = bq24190_charger_properties;
-	charger->num_properties = ARRAY_SIZE(bq24190_charger_properties);
-	charger->supplied_to = bq24190_charger_supplied_to;
-	charger->num_supplicants = ARRAY_SIZE(bq24190_charger_supplied_to);
-	charger->get_property = bq24190_charger_get_property;
-	charger->set_property = bq24190_charger_set_property;
-	charger->property_is_writeable = bq24190_charger_property_is_writeable;
-}
+static const struct power_supply_desc bq24190_charger_desc = {
+	.name			= "bq24190-charger",
+	.type			= POWER_SUPPLY_TYPE_USB,
+	.properties		= bq24190_charger_properties,
+	.num_properties		= ARRAY_SIZE(bq24190_charger_properties),
+	.get_property		= bq24190_charger_get_property,
+	.set_property		= bq24190_charger_set_property,
+	.property_is_writeable	= bq24190_charger_property_is_writeable,
+};
 
 /* Battery power supply property routines */
 
@@ -1102,8 +1095,7 @@ static int bq24190_battery_set_temp_alert_max(struct bq24190_dev_info *bdi,
 static int bq24190_battery_get_property(struct power_supply *psy,
 		enum power_supply_property psp, union power_supply_propval *val)
 {
-	struct bq24190_dev_info *bdi =
-			container_of(psy, struct bq24190_dev_info, battery);
+	struct bq24190_dev_info *bdi = power_supply_get_drvdata(psy);
 	int ret;
 
 	dev_dbg(bdi->dev, "prop: %d\n", psp);
@@ -1144,8 +1136,7 @@ static int bq24190_battery_set_property(struct power_supply *psy,
 		enum power_supply_property psp,
 		const union power_supply_propval *val)
 {
-	struct bq24190_dev_info *bdi =
-			container_of(psy, struct bq24190_dev_info, battery);
+	struct bq24190_dev_info *bdi = power_supply_get_drvdata(psy);
 	int ret;
 
 	dev_dbg(bdi->dev, "prop: %d\n", psp);
@@ -1193,16 +1184,15 @@ static enum power_supply_property bq24190_battery_properties[] = {
 	POWER_SUPPLY_PROP_SCOPE,
 };
 
-static void bq24190_battery_init(struct power_supply *battery)
-{
-	battery->name = "bq24190-battery";
-	battery->type = POWER_SUPPLY_TYPE_BATTERY;
-	battery->properties = bq24190_battery_properties;
-	battery->num_properties = ARRAY_SIZE(bq24190_battery_properties);
-	battery->get_property = bq24190_battery_get_property;
-	battery->set_property = bq24190_battery_set_property;
-	battery->property_is_writeable = bq24190_battery_property_is_writeable;
-}
+static const struct power_supply_desc bq24190_battery_desc = {
+	.name			= "bq24190-battery",
+	.type			= POWER_SUPPLY_TYPE_BATTERY,
+	.properties		= bq24190_battery_properties,
+	.num_properties		= ARRAY_SIZE(bq24190_battery_properties),
+	.get_property		= bq24190_battery_get_property,
+	.set_property		= bq24190_battery_set_property,
+	.property_is_writeable	= bq24190_battery_property_is_writeable,
+};
 
 static irqreturn_t bq24190_irq_handler_thread(int irq, void *data)
 {
@@ -1269,8 +1259,8 @@ static irqreturn_t bq24190_irq_handler_thread(int irq, void *data)
 	 * interrupt received).
 	 */
 	if (alert_userspace && !bdi->first_time) {
-		power_supply_changed(&bdi->charger);
-		power_supply_changed(&bdi->battery);
+		power_supply_changed(bdi->charger);
+		power_supply_changed(bdi->battery);
 		bdi->first_time = false;
 	}
 
@@ -1362,6 +1352,7 @@ static int bq24190_probe(struct i2c_client *client,
 	struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);
 	struct device *dev = &client->dev;
 	struct bq24190_platform_data *pdata = client->dev.platform_data;
+	struct power_supply_config charger_cfg = {}, battery_cfg = {};
 	struct bq24190_dev_info *bdi;
 	int ret;
 
@@ -1416,19 +1407,23 @@ static int bq24190_probe(struct i2c_client *client,
 		goto out2;
 	}
 
-	bq24190_charger_init(&bdi->charger);
-
-	ret = power_supply_register(dev, &bdi->charger);
-	if (ret) {
+	charger_cfg.drv_data = bdi;
+	charger_cfg.supplied_to = bq24190_charger_supplied_to;
+	charger_cfg.num_supplicants = ARRAY_SIZE(bq24190_charger_supplied_to),
+	bdi->charger = power_supply_register(dev, &bq24190_charger_desc,
+						&charger_cfg);
+	if (IS_ERR(bdi->charger)) {
 		dev_err(dev, "Can't register charger\n");
+		ret = PTR_ERR(bdi->charger);
 		goto out2;
 	}
 
-	bq24190_battery_init(&bdi->battery);
-
-	ret = power_supply_register(dev, &bdi->battery);
-	if (ret) {
+	battery_cfg.drv_data = bdi;
+	bdi->battery = power_supply_register(dev, &bq24190_battery_desc,
+						&battery_cfg);
+	if (IS_ERR(bdi->battery)) {
 		dev_err(dev, "Can't register battery\n");
+		ret = PTR_ERR(bdi->battery);
 		goto out3;
 	}
 
@@ -1441,9 +1436,9 @@ static int bq24190_probe(struct i2c_client *client,
 	return 0;
 
 out4:
-	power_supply_unregister(&bdi->battery);
+	power_supply_unregister(bdi->battery);
 out3:
-	power_supply_unregister(&bdi->charger);
+	power_supply_unregister(bdi->charger);
 out2:
 	pm_runtime_disable(dev);
 out1:
@@ -1462,8 +1457,8 @@ static int bq24190_remove(struct i2c_client *client)
 	pm_runtime_put_sync(bdi->dev);
 
 	bq24190_sysfs_remove_group(bdi);
-	power_supply_unregister(&bdi->battery);
-	power_supply_unregister(&bdi->charger);
+	power_supply_unregister(bdi->battery);
+	power_supply_unregister(bdi->charger);
 	pm_runtime_disable(bdi->dev);
 
 	if (bdi->gpio_int)
@@ -1499,8 +1494,8 @@ static int bq24190_pm_resume(struct device *dev)
 	pm_runtime_put_sync(bdi->dev);
 
 	/* Things may have changed while suspended so alert upper layer */
-	power_supply_changed(&bdi->charger);
-	power_supply_changed(&bdi->battery);
+	power_supply_changed(bdi->charger);
+	power_supply_changed(bdi->battery);
 
 	return 0;
 }
diff --git a/drivers/power/bq24735-charger.c b/drivers/power/bq24735-charger.c
index d022b82..961a189 100644
--- a/drivers/power/bq24735-charger.c
+++ b/drivers/power/bq24735-charger.c
@@ -44,14 +44,15 @@
 #define BQ24735_DEVICE_ID		0xff
 
 struct bq24735 {
-	struct power_supply	charger;
-	struct i2c_client	*client;
-	struct bq24735_platform	*pdata;
+	struct power_supply		*charger;
+	struct power_supply_desc	charger_desc;
+	struct i2c_client		*client;
+	struct bq24735_platform		*pdata;
 };
 
 static inline struct bq24735 *to_bq24735(struct power_supply *psy)
 {
-	return container_of(psy, struct bq24735, charger);
+	return power_supply_get_drvdata(psy);
 }
 
 static enum power_supply_property bq24735_charger_properties[] = {
@@ -192,9 +193,7 @@ static int bq24735_charger_get_property(struct power_supply *psy,
 					enum power_supply_property psp,
 					union power_supply_propval *val)
 {
-	struct bq24735 *charger;
-
-	charger = container_of(psy, struct bq24735, charger);
+	struct bq24735 *charger = to_bq24735(psy);
 
 	switch (psp) {
 	case POWER_SUPPLY_PROP_ONLINE:
@@ -248,7 +247,8 @@ static int bq24735_charger_probe(struct i2c_client *client,
 {
 	int ret;
 	struct bq24735 *charger;
-	struct power_supply *supply;
+	struct power_supply_desc *supply_desc;
+	struct power_supply_config psy_cfg = {};
 	char *name;
 
 	charger = devm_kzalloc(&client->dev, sizeof(*charger), GFP_KERNEL);
@@ -277,16 +277,18 @@ static int bq24735_charger_probe(struct i2c_client *client,
 
 	charger->client = client;
 
-	supply = &charger->charger;
+	supply_desc = &charger->charger_desc;
 
-	supply->name = name;
-	supply->type = POWER_SUPPLY_TYPE_MAINS;
-	supply->properties = bq24735_charger_properties;
-	supply->num_properties = ARRAY_SIZE(bq24735_charger_properties);
-	supply->get_property = bq24735_charger_get_property;
-	supply->supplied_to = charger->pdata->supplied_to;
-	supply->num_supplicants = charger->pdata->num_supplicants;
-	supply->of_node = client->dev.of_node;
+	supply_desc->name = name;
+	supply_desc->type = POWER_SUPPLY_TYPE_MAINS;
+	supply_desc->properties = bq24735_charger_properties;
+	supply_desc->num_properties = ARRAY_SIZE(bq24735_charger_properties);
+	supply_desc->get_property = bq24735_charger_get_property;
+
+	psy_cfg.supplied_to = charger->pdata->supplied_to;
+	psy_cfg.num_supplicants = charger->pdata->num_supplicants;
+	psy_cfg.of_node = client->dev.of_node;
+	psy_cfg.drv_data = charger;
 
 	i2c_set_clientdata(client, charger);
 
@@ -341,8 +343,10 @@ static int bq24735_charger_probe(struct i2c_client *client,
 		}
 	}
 
-	ret = power_supply_register(&client->dev, supply);
-	if (ret < 0) {
+	charger->charger = power_supply_register(&client->dev, supply_desc,
+						 &psy_cfg);
+	if (IS_ERR(charger->charger)) {
+		ret = PTR_ERR(charger->charger);
 		dev_err(&client->dev, "Failed to register power supply: %d\n",
 			ret);
 		goto err_free_name;
@@ -354,7 +358,8 @@ static int bq24735_charger_probe(struct i2c_client *client,
 						IRQF_TRIGGER_RISING |
 						IRQF_TRIGGER_FALLING |
 						IRQF_ONESHOT,
-						supply->name, supply);
+						supply_desc->name,
+						charger->charger);
 		if (ret) {
 			dev_err(&client->dev,
 				"Unable to register IRQ %d err %d\n",
@@ -365,7 +370,7 @@ static int bq24735_charger_probe(struct i2c_client *client,
 
 	return 0;
 err_unregister_supply:
-	power_supply_unregister(supply);
+	power_supply_unregister(charger->charger);
 err_free_name:
 	if (name != charger->pdata->name)
 		kfree(name);
@@ -381,10 +386,10 @@ static int bq24735_charger_remove(struct i2c_client *client)
 		devm_free_irq(&charger->client->dev, charger->client->irq,
 			      &charger->charger);
 
-	power_supply_unregister(&charger->charger);
+	power_supply_unregister(charger->charger);
 
-	if (charger->charger.name != charger->pdata->name)
-		kfree(charger->charger.name);
+	if (charger->charger_desc.name != charger->pdata->name)
+		kfree(charger->charger_desc.name);
 
 	return 0;
 }
diff --git a/drivers/power/bq27x00_battery.c b/drivers/power/bq27x00_battery.c
index b72ba7c..a57433d 100644
--- a/drivers/power/bq27x00_battery.c
+++ b/drivers/power/bq27x00_battery.c
@@ -16,14 +16,12 @@
  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
  * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  *
- */
-
-/*
  * Datasheets:
  * http://focus.ti.com/docs/prod/folders/print/bq27000.html
  * http://focus.ti.com/docs/prod/folders/print/bq27500.html
  * http://www.ti.com/product/bq27425-g1
  * http://www.ti.com/product/BQ27742-G1
+ * http://www.ti.com/product/BQ27510-G3
  */
 
 #include <linux/device.h>
@@ -74,6 +72,10 @@
 
 #define BQ27742_POWER_AVG		0x76
 
+#define BQ27510_REG_SOC			0x20
+#define BQ27510_REG_DCAP		0x2E /* Design capacity */
+#define BQ27510_REG_CYCT		0x1E /* Cycle count total */
+
 /* bq27425 register addresses are same as bq27x00 addresses minus 4 */
 #define BQ27425_REG_OFFSET		0x04
 #define BQ27425_REG_SOC		(0x1C + BQ27425_REG_OFFSET)
@@ -87,7 +89,7 @@ struct bq27x00_access_methods {
 	int (*read)(struct bq27x00_device_info *di, u8 reg, bool single);
 };
 
-enum bq27x00_chip { BQ27000, BQ27500, BQ27425, BQ27742};
+enum bq27x00_chip { BQ27000, BQ27500, BQ27425, BQ27742, BQ27510};
 
 struct bq27x00_reg_cache {
 	int temperature;
@@ -114,7 +116,7 @@ struct bq27x00_device_info {
 	unsigned long last_update;
 	struct delayed_work work;
 
-	struct power_supply	bat;
+	struct power_supply	*bat;
 
 	struct bq27x00_access_methods bus;
 
@@ -174,6 +176,24 @@ static enum power_supply_property bq27742_battery_props[] = {
 	POWER_SUPPLY_PROP_HEALTH,
 };
 
+static enum power_supply_property bq27510_battery_props[] = {
+	POWER_SUPPLY_PROP_STATUS,
+	POWER_SUPPLY_PROP_PRESENT,
+	POWER_SUPPLY_PROP_VOLTAGE_NOW,
+	POWER_SUPPLY_PROP_CURRENT_NOW,
+	POWER_SUPPLY_PROP_CAPACITY,
+	POWER_SUPPLY_PROP_CAPACITY_LEVEL,
+	POWER_SUPPLY_PROP_TEMP,
+	POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW,
+	POWER_SUPPLY_PROP_TECHNOLOGY,
+	POWER_SUPPLY_PROP_CHARGE_FULL,
+	POWER_SUPPLY_PROP_CHARGE_NOW,
+	POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
+	POWER_SUPPLY_PROP_CYCLE_COUNT,
+	POWER_SUPPLY_PROP_POWER_AVG,
+	POWER_SUPPLY_PROP_HEALTH,
+};
+
 static unsigned int poll_interval = 360;
 module_param(poll_interval, uint, 0644);
 MODULE_PARM_DESC(poll_interval, "battery poll interval in seconds - " \
@@ -198,7 +218,8 @@ static inline int bq27x00_read(struct bq27x00_device_info *di, u8 reg,
  */
 static bool bq27xxx_is_chip_version_higher(struct bq27x00_device_info *di)
 {
-	if (di->chip == BQ27425 || di->chip == BQ27500 || di->chip == BQ27742)
+	if (di->chip == BQ27425 || di->chip == BQ27500 || di->chip == BQ27742
+	    || di->chip == BQ27510)
 		return true;
 	return false;
 }
@@ -213,6 +234,8 @@ static int bq27x00_battery_read_rsoc(struct bq27x00_device_info *di)
 
 	if (di->chip == BQ27500 || di->chip == BQ27742)
 		rsoc = bq27x00_read(di, BQ27500_REG_SOC, false);
+	else if (di->chip == BQ27510)
+		rsoc = bq27x00_read(di, BQ27510_REG_SOC, false);
 	else if (di->chip == BQ27425)
 		rsoc = bq27x00_read(di, BQ27425_REG_SOC, false);
 	else
@@ -286,6 +309,8 @@ static int bq27x00_battery_read_ilmd(struct bq27x00_device_info *di)
 	if (bq27xxx_is_chip_version_higher(di)) {
 		if (di->chip == BQ27425)
 			ilmd = bq27x00_read(di, BQ27425_REG_DCAP, false);
+		else if (di->chip == BQ27510)
+			ilmd = bq27x00_read(di, BQ27510_REG_DCAP, false);
 		else
 			ilmd = bq27x00_read(di, BQ27500_REG_DCAP, false);
 	} else
@@ -354,7 +379,10 @@ static int bq27x00_battery_read_cyct(struct bq27x00_device_info *di)
 {
 	int cyct;
 
-	cyct = bq27x00_read(di, BQ27x00_REG_CYCT, false);
+	if (di->chip == BQ27510)
+		cyct = bq27x00_read(di, BQ27510_REG_CYCT, false);
+	else
+		cyct = bq27x00_read(di, BQ27x00_REG_CYCT, false);
 	if (cyct < 0)
 		dev_err(di->dev, "error reading cycle count total\n");
 
@@ -425,6 +453,10 @@ static int bq27x00_battery_read_health(struct bq27x00_device_info *di)
 		else
 			tval = POWER_SUPPLY_HEALTH_GOOD;
 		return tval;
+	} else if (di->chip == BQ27510) {
+		if (tval & BQ27500_FLAG_OTC)
+			return POWER_SUPPLY_HEALTH_OVERHEAT;
+		return POWER_SUPPLY_HEALTH_GOOD;
 	} else {
 		if (tval & BQ27000_FLAG_EDV1)
 			tval = POWER_SUPPLY_HEALTH_DEAD;
@@ -440,6 +472,7 @@ static void bq27x00_update(struct bq27x00_device_info *di)
 {
 	struct bq27x00_reg_cache cache = {0, };
 	bool is_bq27500 = di->chip == BQ27500;
+	bool is_bq27510 = di->chip == BQ27510;
 	bool is_bq27425 = di->chip == BQ27425;
 	bool is_bq27742 = di->chip == BQ27742;
 	bool flags_1b = !(is_bq27500 || is_bq27742);
@@ -449,7 +482,7 @@ static void bq27x00_update(struct bq27x00_device_info *di)
 		/* read error */
 		cache.flags = -1;
 	if (cache.flags >= 0) {
-		if (!is_bq27500 && !is_bq27425 && !is_bq27742
+		if (!is_bq27500 && !is_bq27425 && !is_bq27742 && !is_bq27510
 				&& (cache.flags & BQ27000_FLAG_CI)) {
 			dev_info(di->dev, "battery is not calibrated! ignoring capacity values\n");
 			cache.capacity = -ENODATA;
@@ -461,7 +494,7 @@ static void bq27x00_update(struct bq27x00_device_info *di)
 			cache.health = -ENODATA;
 		} else {
 			cache.capacity = bq27x00_battery_read_rsoc(di);
-			if (is_bq27742)
+			if (is_bq27742 || is_bq27510)
 				cache.time_to_empty =
 					bq27x00_battery_read_time(di,
 							BQ27x00_REG_TTE);
@@ -498,7 +531,7 @@ static void bq27x00_update(struct bq27x00_device_info *di)
 	}
 
 	if (di->cache.capacity != cache.capacity)
-		power_supply_changed(&di->bat);
+		power_supply_changed(di->bat);
 
 	if (memcmp(&di->cache, &cache, sizeof(cache)) != 0)
 		di->cache = cache;
@@ -570,7 +603,7 @@ static int bq27x00_battery_status(struct bq27x00_device_info *di,
 			status = POWER_SUPPLY_STATUS_FULL;
 		else if (di->cache.flags & BQ27000_FLAG_CHGS)
 			status = POWER_SUPPLY_STATUS_CHARGING;
-		else if (power_supply_am_i_supplied(&di->bat))
+		else if (power_supply_am_i_supplied(di->bat))
 			status = POWER_SUPPLY_STATUS_NOT_CHARGING;
 		else
 			status = POWER_SUPPLY_STATUS_DISCHARGING;
@@ -642,15 +675,12 @@ static int bq27x00_simple_value(int value,
 	return 0;
 }
 
-#define to_bq27x00_device_info(x) container_of((x), \
-				struct bq27x00_device_info, bat);
-
 static int bq27x00_battery_get_property(struct power_supply *psy,
 					enum power_supply_property psp,
 					union power_supply_propval *val)
 {
 	int ret = 0;
-	struct bq27x00_device_info *di = to_bq27x00_device_info(psy);
+	struct bq27x00_device_info *di = power_supply_get_drvdata(psy);
 
 	mutex_lock(&di->lock);
 	if (time_is_before_jiffies(di->last_update + 5 * HZ)) {
@@ -728,35 +758,47 @@ static int bq27x00_battery_get_property(struct power_supply *psy,
 
 static void bq27x00_external_power_changed(struct power_supply *psy)
 {
-	struct bq27x00_device_info *di = to_bq27x00_device_info(psy);
+	struct bq27x00_device_info *di = power_supply_get_drvdata(psy);
 
 	cancel_delayed_work_sync(&di->work);
 	schedule_delayed_work(&di->work, 0);
 }
 
-static int bq27x00_powersupply_init(struct bq27x00_device_info *di)
+static int bq27x00_powersupply_init(struct bq27x00_device_info *di,
+				    const char *name)
 {
 	int ret;
+	struct power_supply_desc *psy_desc;
+	struct power_supply_config psy_cfg = { .drv_data = di, };
 
-	di->bat.type = POWER_SUPPLY_TYPE_BATTERY;
+	psy_desc = devm_kzalloc(di->dev, sizeof(*psy_desc), GFP_KERNEL);
+	if (!psy_desc)
+		return -ENOMEM;
+
+	psy_desc->name = name;
+	psy_desc->type = POWER_SUPPLY_TYPE_BATTERY;
 	if (di->chip == BQ27425) {
-		di->bat.properties = bq27425_battery_props;
-		di->bat.num_properties = ARRAY_SIZE(bq27425_battery_props);
+		psy_desc->properties = bq27425_battery_props;
+		psy_desc->num_properties = ARRAY_SIZE(bq27425_battery_props);
 	} else if (di->chip == BQ27742) {
-		di->bat.properties = bq27742_battery_props;
-		di->bat.num_properties = ARRAY_SIZE(bq27742_battery_props);
+		psy_desc->properties = bq27742_battery_props;
+		psy_desc->num_properties = ARRAY_SIZE(bq27742_battery_props);
+	} else if (di->chip == BQ27510) {
+		psy_desc->properties = bq27510_battery_props;
+		psy_desc->num_properties = ARRAY_SIZE(bq27510_battery_props);
 	} else {
-		di->bat.properties = bq27x00_battery_props;
-		di->bat.num_properties = ARRAY_SIZE(bq27x00_battery_props);
+		psy_desc->properties = bq27x00_battery_props;
+		psy_desc->num_properties = ARRAY_SIZE(bq27x00_battery_props);
 	}
-	di->bat.get_property = bq27x00_battery_get_property;
-	di->bat.external_power_changed = bq27x00_external_power_changed;
+	psy_desc->get_property = bq27x00_battery_get_property;
+	psy_desc->external_power_changed = bq27x00_external_power_changed;
 
 	INIT_DELAYED_WORK(&di->work, bq27x00_battery_poll);
 	mutex_init(&di->lock);
 
-	ret = power_supply_register(di->dev, &di->bat);
-	if (ret) {
+	di->bat = power_supply_register_no_ws(di->dev, psy_desc, &psy_cfg);
+	if (IS_ERR(di->bat)) {
+		ret = PTR_ERR(di->bat);
 		dev_err(di->dev, "failed to register battery: %d\n", ret);
 		return ret;
 	}
@@ -780,7 +822,7 @@ static void bq27x00_powersupply_unregister(struct bq27x00_device_info *di)
 
 	cancel_delayed_work_sync(&di->work);
 
-	power_supply_unregister(&di->bat);
+	power_supply_unregister(di->bat);
 
 	mutex_destroy(&di->lock);
 }
@@ -844,37 +886,34 @@ static int bq27x00_battery_probe(struct i2c_client *client,
 	if (num < 0)
 		return num;
 
-	name = kasprintf(GFP_KERNEL, "%s-%d", id->name, num);
+	name = devm_kasprintf(&client->dev, GFP_KERNEL, "%s-%d", id->name, num);
 	if (!name) {
 		dev_err(&client->dev, "failed to allocate device name\n");
 		retval = -ENOMEM;
-		goto batt_failed_1;
+		goto batt_failed;
 	}
 
 	di = devm_kzalloc(&client->dev, sizeof(*di), GFP_KERNEL);
 	if (!di) {
 		dev_err(&client->dev, "failed to allocate device info data\n");
 		retval = -ENOMEM;
-		goto batt_failed_2;
+		goto batt_failed;
 	}
 
 	di->id = num;
 	di->dev = &client->dev;
 	di->chip = id->driver_data;
-	di->bat.name = name;
 	di->bus.read = &bq27x00_read_i2c;
 
-	retval = bq27x00_powersupply_init(di);
+	retval = bq27x00_powersupply_init(di, name);
 	if (retval)
-		goto batt_failed_2;
+		goto batt_failed;
 
 	i2c_set_clientdata(client, di);
 
 	return 0;
 
-batt_failed_2:
-	kfree(name);
-batt_failed_1:
+batt_failed:
 	mutex_lock(&battery_mutex);
 	idr_remove(&battery_id, num);
 	mutex_unlock(&battery_mutex);
@@ -888,8 +927,6 @@ static int bq27x00_battery_remove(struct i2c_client *client)
 
 	bq27x00_powersupply_unregister(di);
 
-	kfree(di->bat.name);
-
 	mutex_lock(&battery_mutex);
 	idr_remove(&battery_id, di->id);
 	mutex_unlock(&battery_mutex);
@@ -902,6 +939,7 @@ static const struct i2c_device_id bq27x00_id[] = {
 	{ "bq27500", BQ27500 },
 	{ "bq27425", BQ27425 },
 	{ "bq27742", BQ27742 },
+	{ "bq27510", BQ27510 },
 	{},
 };
 MODULE_DEVICE_TABLE(i2c, bq27x00_id);
@@ -977,6 +1015,7 @@ static int bq27000_battery_probe(struct platform_device *pdev)
 {
 	struct bq27x00_device_info *di;
 	struct bq27000_platform_data *pdata = pdev->dev.platform_data;
+	const char *name;
 
 	if (!pdata) {
 		dev_err(&pdev->dev, "no platform_data supplied\n");
@@ -999,10 +1038,10 @@ static int bq27000_battery_probe(struct platform_device *pdev)
 	di->dev = &pdev->dev;
 	di->chip = BQ27000;
 
-	di->bat.name = pdata->name ?: dev_name(&pdev->dev);
+	name = pdata->name ?: dev_name(&pdev->dev);
 	di->bus.read = &bq27000_read_platform;
 
-	return bq27x00_powersupply_init(di);
+	return bq27x00_powersupply_init(di, name);
 }
 
 static int bq27000_battery_remove(struct platform_device *pdev)
diff --git a/drivers/power/charger-manager.c b/drivers/power/charger-manager.c
index 14b0d85..0aed13f 100644
--- a/drivers/power/charger-manager.c
+++ b/drivers/power/charger-manager.c
@@ -103,10 +103,11 @@ static bool is_batt_present(struct charger_manager *cm)
 		if (!psy)
 			break;
 
-		ret = psy->get_property(psy,
-				POWER_SUPPLY_PROP_PRESENT, &val);
+		ret = power_supply_get_property(psy, POWER_SUPPLY_PROP_PRESENT,
+				&val);
 		if (ret == 0 && val.intval)
 			present = true;
+		power_supply_put(psy);
 		break;
 	case CM_CHARGER_STAT:
 		for (i = 0; cm->desc->psy_charger_stat[i]; i++) {
@@ -118,8 +119,9 @@ static bool is_batt_present(struct charger_manager *cm)
 				continue;
 			}
 
-			ret = psy->get_property(psy, POWER_SUPPLY_PROP_PRESENT,
-					&val);
+			ret = power_supply_get_property(psy,
+				POWER_SUPPLY_PROP_PRESENT, &val);
+			power_supply_put(psy);
 			if (ret == 0 && val.intval) {
 				present = true;
 				break;
@@ -155,7 +157,9 @@ static bool is_ext_pwr_online(struct charger_manager *cm)
 			continue;
 		}
 
-		ret = psy->get_property(psy, POWER_SUPPLY_PROP_ONLINE, &val);
+		ret = power_supply_get_property(psy, POWER_SUPPLY_PROP_ONLINE,
+				&val);
+		power_supply_put(psy);
 		if (ret == 0 && val.intval) {
 			online = true;
 			break;
@@ -183,8 +187,9 @@ static int get_batt_uV(struct charger_manager *cm, int *uV)
 	if (!fuel_gauge)
 		return -ENODEV;
 
-	ret = fuel_gauge->get_property(fuel_gauge,
+	ret = power_supply_get_property(fuel_gauge,
 				POWER_SUPPLY_PROP_VOLTAGE_NOW, &val);
+	power_supply_put(fuel_gauge);
 	if (ret)
 		return ret;
 
@@ -223,20 +228,26 @@ static bool is_charging(struct charger_manager *cm)
 		}
 
 		/* 2. The charger should be online (ext-power) */
-		ret = psy->get_property(psy, POWER_SUPPLY_PROP_ONLINE, &val);
+		ret = power_supply_get_property(psy, POWER_SUPPLY_PROP_ONLINE,
+				&val);
 		if (ret) {
 			dev_warn(cm->dev, "Cannot read ONLINE value from %s\n",
 				 cm->desc->psy_charger_stat[i]);
+			power_supply_put(psy);
 			continue;
 		}
-		if (val.intval == 0)
+		if (val.intval == 0) {
+			power_supply_put(psy);
 			continue;
+		}
 
 		/*
 		 * 3. The charger should not be FULL, DISCHARGING,
 		 * or NOT_CHARGING.
 		 */
-		ret = psy->get_property(psy, POWER_SUPPLY_PROP_STATUS, &val);
+		ret = power_supply_get_property(psy, POWER_SUPPLY_PROP_STATUS,
+				&val);
+		power_supply_put(psy);
 		if (ret) {
 			dev_warn(cm->dev, "Cannot read STATUS value from %s\n",
 				 cm->desc->psy_charger_stat[i]);
@@ -264,6 +275,7 @@ static bool is_full_charged(struct charger_manager *cm)
 	struct charger_desc *desc = cm->desc;
 	union power_supply_propval val;
 	struct power_supply *fuel_gauge;
+	bool is_full = false;
 	int ret = 0;
 	int uV;
 
@@ -279,30 +291,38 @@ static bool is_full_charged(struct charger_manager *cm)
 		val.intval = 0;
 
 		/* Not full if capacity of fuel gauge isn't full */
-		ret = fuel_gauge->get_property(fuel_gauge,
+		ret = power_supply_get_property(fuel_gauge,
 				POWER_SUPPLY_PROP_CHARGE_FULL, &val);
-		if (!ret && val.intval > desc->fullbatt_full_capacity)
-			return true;
+		if (!ret && val.intval > desc->fullbatt_full_capacity) {
+			is_full = true;
+			goto out;
+		}
 	}
 
 	/* Full, if it's over the fullbatt voltage */
 	if (desc->fullbatt_uV > 0) {
 		ret = get_batt_uV(cm, &uV);
-		if (!ret && uV >= desc->fullbatt_uV)
-			return true;
+		if (!ret && uV >= desc->fullbatt_uV) {
+			is_full = true;
+			goto out;
+		}
 	}
 
 	/* Full, if the capacity is more than fullbatt_soc */
 	if (desc->fullbatt_soc > 0) {
 		val.intval = 0;
 
-		ret = fuel_gauge->get_property(fuel_gauge,
+		ret = power_supply_get_property(fuel_gauge,
 				POWER_SUPPLY_PROP_CAPACITY, &val);
-		if (!ret && val.intval >= desc->fullbatt_soc)
-			return true;
+		if (!ret && val.intval >= desc->fullbatt_soc) {
+			is_full = true;
+			goto out;
+		}
 	}
 
-	return false;
+out:
+	power_supply_put(fuel_gauge);
+	return is_full;
 }
 
 /**
@@ -575,14 +595,18 @@ static int cm_get_battery_temperature_by_psy(struct charger_manager *cm,
 					int *temp)
 {
 	struct power_supply *fuel_gauge;
+	int ret;
 
 	fuel_gauge = power_supply_get_by_name(cm->desc->psy_fuel_gauge);
 	if (!fuel_gauge)
 		return -ENODEV;
 
-	return fuel_gauge->get_property(fuel_gauge,
+	ret = power_supply_get_property(fuel_gauge,
 				POWER_SUPPLY_PROP_TEMP,
 				(union power_supply_propval *)temp);
+	power_supply_put(fuel_gauge);
+
+	return ret;
 }
 
 static int cm_get_battery_temperature(struct charger_manager *cm,
@@ -861,10 +885,9 @@ static int charger_get_property(struct power_supply *psy,
 		enum power_supply_property psp,
 		union power_supply_propval *val)
 {
-	struct charger_manager *cm = container_of(psy,
-			struct charger_manager, charger_psy);
+	struct charger_manager *cm = power_supply_get_drvdata(psy);
 	struct charger_desc *desc = cm->desc;
-	struct power_supply *fuel_gauge;
+	struct power_supply *fuel_gauge = NULL;
 	int ret = 0;
 	int uV;
 
@@ -900,26 +923,26 @@ static int charger_get_property(struct power_supply *psy,
 			ret = -ENODEV;
 			break;
 		}
-		ret = fuel_gauge->get_property(fuel_gauge,
+		ret = power_supply_get_property(fuel_gauge,
 				POWER_SUPPLY_PROP_CURRENT_NOW, val);
 		break;
 	case POWER_SUPPLY_PROP_TEMP:
 	case POWER_SUPPLY_PROP_TEMP_AMBIENT:
 		return cm_get_battery_temperature(cm, &val->intval);
 	case POWER_SUPPLY_PROP_CAPACITY:
-		fuel_gauge = power_supply_get_by_name(cm->desc->psy_fuel_gauge);
-		if (!fuel_gauge) {
-			ret = -ENODEV;
-			break;
-		}
-
 		if (!is_batt_present(cm)) {
 			/* There is no battery. Assume 100% */
 			val->intval = 100;
 			break;
 		}
 
-		ret = fuel_gauge->get_property(fuel_gauge,
+		fuel_gauge = power_supply_get_by_name(cm->desc->psy_fuel_gauge);
+		if (!fuel_gauge) {
+			ret = -ENODEV;
+			break;
+		}
+
+		ret = power_supply_get_property(fuel_gauge,
 					POWER_SUPPLY_PROP_CAPACITY, val);
 		if (ret)
 			break;
@@ -975,7 +998,7 @@ static int charger_get_property(struct power_supply *psy,
 				break;
 			}
 
-			ret = fuel_gauge->get_property(fuel_gauge,
+			ret = power_supply_get_property(fuel_gauge,
 						POWER_SUPPLY_PROP_CHARGE_NOW,
 						val);
 			if (ret) {
@@ -993,6 +1016,8 @@ static int charger_get_property(struct power_supply *psy,
 	default:
 		return -EINVAL;
 	}
+	if (fuel_gauge)
+		power_supply_put(fuel_gauge);
 	return ret;
 }
 
@@ -1015,7 +1040,7 @@ static enum power_supply_property default_charger_props[] = {
 	 */
 };
 
-static struct power_supply psy_default = {
+static const struct power_supply_desc psy_default = {
 	.name = "battery",
 	.type = POWER_SUPPLY_TYPE_BATTERY,
 	.properties = default_charger_props,
@@ -1396,7 +1421,7 @@ static int charger_manager_register_sysfs(struct charger_manager *cm)
 		dev_info(cm->dev, "'%s' regulator's externally_control is %d\n",
 			 charger->regulator_name, charger->externally_control);
 
-		ret = sysfs_create_group(&cm->charger_psy.dev->kobj,
+		ret = sysfs_create_group(&cm->charger_psy->dev.kobj,
 					&charger->attr_g);
 		if (ret < 0) {
 			dev_err(cm->dev, "Cannot create sysfs entry of %s regulator\n",
@@ -1424,13 +1449,13 @@ static int cm_init_thermal_data(struct charger_manager *cm,
 	int ret;
 
 	/* Verify whether fuel gauge provides battery temperature */
-	ret = fuel_gauge->get_property(fuel_gauge,
+	ret = power_supply_get_property(fuel_gauge,
 					POWER_SUPPLY_PROP_TEMP, &val);
 
 	if (!ret) {
-		cm->charger_psy.properties[cm->charger_psy.num_properties] =
+		cm->charger_psy_desc.properties[cm->charger_psy_desc.num_properties] =
 				POWER_SUPPLY_PROP_TEMP;
-		cm->charger_psy.num_properties++;
+		cm->charger_psy_desc.num_properties++;
 		cm->desc->measure_battery_temp = true;
 	}
 #ifdef CONFIG_THERMAL
@@ -1441,9 +1466,9 @@ static int cm_init_thermal_data(struct charger_manager *cm,
 			return PTR_ERR(cm->tzd_batt);
 
 		/* Use external thermometer */
-		cm->charger_psy.properties[cm->charger_psy.num_properties] =
+		cm->charger_psy_desc.properties[cm->charger_psy_desc.num_properties] =
 				POWER_SUPPLY_PROP_TEMP_AMBIENT;
-		cm->charger_psy.num_properties++;
+		cm->charger_psy_desc.num_properties++;
 		cm->desc->measure_battery_temp = true;
 		ret = 0;
 	}
@@ -1459,7 +1484,7 @@ static int cm_init_thermal_data(struct charger_manager *cm,
 	return ret;
 }
 
-static struct of_device_id charger_manager_match[] = {
+static const struct of_device_id charger_manager_match[] = {
 	{
 		.compatible = "charger-manager",
 	},
@@ -1603,6 +1628,7 @@ static int charger_manager_probe(struct platform_device *pdev)
 	int j = 0;
 	union power_supply_propval val;
 	struct power_supply *fuel_gauge;
+	struct power_supply_config psy_cfg = {};
 
 	if (IS_ERR(desc)) {
 		dev_err(&pdev->dev, "No platform data (desc) found\n");
@@ -1617,6 +1643,7 @@ static int charger_manager_probe(struct platform_device *pdev)
 	/* Basic Values. Unspecified are Null or 0 */
 	cm->dev = &pdev->dev;
 	cm->desc = desc;
+	psy_cfg.drv_data = cm;
 
 	/* Initialize alarm timer */
 	if (alarmtimer_get_rtcdev()) {
@@ -1672,13 +1699,7 @@ static int charger_manager_probe(struct platform_device *pdev)
 				desc->psy_charger_stat[i]);
 			return -ENODEV;
 		}
-	}
-
-	fuel_gauge = power_supply_get_by_name(desc->psy_fuel_gauge);
-	if (!fuel_gauge) {
-		dev_err(&pdev->dev, "Cannot find power supply \"%s\"\n",
-			desc->psy_fuel_gauge);
-		return -ENODEV;
+		power_supply_put(psy);
 	}
 
 	if (desc->polling_interval_ms == 0 ||
@@ -1696,40 +1717,46 @@ static int charger_manager_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, cm);
 
-	memcpy(&cm->charger_psy, &psy_default, sizeof(psy_default));
+	memcpy(&cm->charger_psy_desc, &psy_default, sizeof(psy_default));
 
 	if (!desc->psy_name)
 		strncpy(cm->psy_name_buf, psy_default.name, PSY_NAME_MAX);
 	else
 		strncpy(cm->psy_name_buf, desc->psy_name, PSY_NAME_MAX);
-	cm->charger_psy.name = cm->psy_name_buf;
+	cm->charger_psy_desc.name = cm->psy_name_buf;
 
 	/* Allocate for psy properties because they may vary */
-	cm->charger_psy.properties = devm_kzalloc(&pdev->dev,
+	cm->charger_psy_desc.properties = devm_kzalloc(&pdev->dev,
 				sizeof(enum power_supply_property)
 				* (ARRAY_SIZE(default_charger_props) +
 				NUM_CHARGER_PSY_OPTIONAL), GFP_KERNEL);
-	if (!cm->charger_psy.properties)
+	if (!cm->charger_psy_desc.properties)
 		return -ENOMEM;
 
-	memcpy(cm->charger_psy.properties, default_charger_props,
+	memcpy(cm->charger_psy_desc.properties, default_charger_props,
 		sizeof(enum power_supply_property) *
 		ARRAY_SIZE(default_charger_props));
-	cm->charger_psy.num_properties = psy_default.num_properties;
+	cm->charger_psy_desc.num_properties = psy_default.num_properties;
 
 	/* Find which optional psy-properties are available */
-	if (!fuel_gauge->get_property(fuel_gauge,
+	fuel_gauge = power_supply_get_by_name(desc->psy_fuel_gauge);
+	if (!fuel_gauge) {
+		dev_err(&pdev->dev, "Cannot find power supply \"%s\"\n",
+			desc->psy_fuel_gauge);
+		return -ENODEV;
+	}
+	if (!power_supply_get_property(fuel_gauge,
 					  POWER_SUPPLY_PROP_CHARGE_NOW, &val)) {
-		cm->charger_psy.properties[cm->charger_psy.num_properties] =
+		cm->charger_psy_desc.properties[cm->charger_psy_desc.num_properties] =
 				POWER_SUPPLY_PROP_CHARGE_NOW;
-		cm->charger_psy.num_properties++;
+		cm->charger_psy_desc.num_properties++;
 	}
-	if (!fuel_gauge->get_property(fuel_gauge,
+	if (!power_supply_get_property(fuel_gauge,
 					  POWER_SUPPLY_PROP_CURRENT_NOW,
 					  &val)) {
-		cm->charger_psy.properties[cm->charger_psy.num_properties] =
+		cm->charger_psy_desc.properties[cm->charger_psy_desc.num_properties] =
 				POWER_SUPPLY_PROP_CURRENT_NOW;
-		cm->charger_psy.num_properties++;
+		cm->charger_psy_desc.num_properties++;
 	}
 
 	ret = cm_init_thermal_data(cm, fuel_gauge);
@@ -1737,14 +1764,16 @@ static int charger_manager_probe(struct platform_device *pdev)
 		dev_err(&pdev->dev, "Failed to initialize thermal data\n");
 		cm->desc->measure_battery_temp = false;
 	}
+	power_supply_put(fuel_gauge);
 
 	INIT_DELAYED_WORK(&cm->fullbatt_vchk_work, fullbatt_vchk);
 
-	ret = power_supply_register(NULL, &cm->charger_psy);
-	if (ret) {
+	cm->charger_psy = power_supply_register(NULL, &cm->charger_psy_desc,
+						&psy_cfg);
+	if (IS_ERR(cm->charger_psy)) {
 		dev_err(&pdev->dev, "Cannot register charger-manager with name \"%s\"\n",
-			cm->charger_psy.name);
-		return ret;
+			cm->charger_psy_desc.name);
+		return PTR_ERR(cm->charger_psy);
 	}
 
 	/* Register extcon device for charger cable */
@@ -1790,7 +1819,7 @@ err_reg_sysfs:
 		struct charger_regulator *charger;
 
 		charger = &desc->charger_regulators[i];
-		sysfs_remove_group(&cm->charger_psy.dev->kobj,
+		sysfs_remove_group(&cm->charger_psy->dev.kobj,
 				&charger->attr_g);
 	}
 err_reg_extcon:
@@ -1808,7 +1837,7 @@ err_reg_extcon:
 		regulator_put(desc->charger_regulators[i].consumer);
 	}
 
-	power_supply_unregister(&cm->charger_psy);
+	power_supply_unregister(cm->charger_psy);
 
 	return ret;
 }
@@ -1840,7 +1869,7 @@ static int charger_manager_remove(struct platform_device *pdev)
 	for (i = 0 ; i < desc->num_charger_regulators ; i++)
 		regulator_put(desc->charger_regulators[i].consumer);
 
-	power_supply_unregister(&cm->charger_psy);
+	power_supply_unregister(cm->charger_psy);
 
 	try_charger_enable(cm, false);
 
@@ -1999,7 +2028,7 @@ static bool find_power_supply(struct charger_manager *cm,
 	bool found = false;
 
 	for (i = 0; cm->desc->psy_charger_stat[i]; i++) {
-		if (!strcmp(psy->name, cm->desc->psy_charger_stat[i])) {
+		if (!strcmp(psy->desc->name, cm->desc->psy_charger_stat[i])) {
 			found = true;
 			break;
 		}
diff --git a/drivers/power/collie_battery.c b/drivers/power/collie_battery.c
index 594e4db..2da9ed8 100644
--- a/drivers/power/collie_battery.c
+++ b/drivers/power/collie_battery.c
@@ -30,7 +30,7 @@ static int wakeup_enabled;
 
 struct collie_bat {
 	int status;
-	struct power_supply psy;
+	struct power_supply *psy;
 	int full_chrg;
 
 	struct mutex work_lock; /* protects data */
@@ -98,7 +98,7 @@ static int collie_bat_get_property(struct power_supply *psy,
 			    union power_supply_propval *val)
 {
 	int ret = 0;
-	struct collie_bat *bat = container_of(psy, struct collie_bat, psy);
+	struct collie_bat *bat = power_supply_get_drvdata(psy);
 
 	if (bat->is_present && !bat->is_present(bat)
 			&& psp != POWER_SUPPLY_PROP_PRESENT) {
@@ -155,14 +155,14 @@ static irqreturn_t collie_bat_gpio_isr(int irq, void *data)
 static void collie_bat_update(struct collie_bat *bat)
 {
 	int old;
-	struct power_supply *psy = &bat->psy;
+	struct power_supply *psy = bat->psy;
 
 	mutex_lock(&bat->work_lock);
 
 	old = bat->status;
 
 	if (bat->is_present && !bat->is_present(bat)) {
-		printk(KERN_NOTICE "%s not present\n", psy->name);
+		printk(KERN_NOTICE "%s not present\n", psy->desc->name);
 		bat->status = POWER_SUPPLY_STATUS_UNKNOWN;
 		bat->full_chrg = -1;
 	} else if (power_supply_am_i_supplied(psy)) {
@@ -220,18 +220,20 @@ static enum power_supply_property collie_bat_bu_props[] = {
 	POWER_SUPPLY_PROP_PRESENT,
 };
 
+static const struct power_supply_desc collie_bat_main_desc = {
+	.name		= "main-battery",
+	.type		= POWER_SUPPLY_TYPE_BATTERY,
+	.properties	= collie_bat_main_props,
+	.num_properties	= ARRAY_SIZE(collie_bat_main_props),
+	.get_property	= collie_bat_get_property,
+	.external_power_changed = collie_bat_external_power_changed,
+	.use_for_apm	= 1,
+};
+
 static struct collie_bat collie_bat_main = {
 	.status = POWER_SUPPLY_STATUS_DISCHARGING,
 	.full_chrg = -1,
-	.psy = {
-		.name		= "main-battery",
-		.type		= POWER_SUPPLY_TYPE_BATTERY,
-		.properties	= collie_bat_main_props,
-		.num_properties	= ARRAY_SIZE(collie_bat_main_props),
-		.get_property	= collie_bat_get_property,
-		.external_power_changed = collie_bat_external_power_changed,
-		.use_for_apm	= 1,
-	},
+	.psy = NULL,
 
 	.gpio_full = COLLIE_GPIO_CO,
 	.gpio_charge_on = COLLIE_GPIO_CHARGE_ON,
@@ -249,18 +251,19 @@ static struct collie_bat collie_bat_main = {
 	.adc_temp_divider = 10000,
 };
 
+static const struct power_supply_desc collie_bat_bu_desc = {
+	.name		= "backup-battery",
+	.type		= POWER_SUPPLY_TYPE_BATTERY,
+	.properties	= collie_bat_bu_props,
+	.num_properties	= ARRAY_SIZE(collie_bat_bu_props),
+	.get_property	= collie_bat_get_property,
+	.external_power_changed = collie_bat_external_power_changed,
+};
+
 static struct collie_bat collie_bat_bu = {
 	.status = POWER_SUPPLY_STATUS_UNKNOWN,
 	.full_chrg = -1,
-
-	.psy = {
-		.name		= "backup-battery",
-		.type		= POWER_SUPPLY_TYPE_BATTERY,
-		.properties	= collie_bat_bu_props,
-		.num_properties	= ARRAY_SIZE(collie_bat_bu_props),
-		.get_property	= collie_bat_get_property,
-		.external_power_changed = collie_bat_external_power_changed,
-	},
+	.psy = NULL,
 
 	.gpio_full = -1,
 	.gpio_charge_on = -1,
@@ -319,6 +322,7 @@ static int collie_bat_resume(struct ucb1x00_dev *dev)
 static int collie_bat_probe(struct ucb1x00_dev *dev)
 {
 	int ret;
+	struct power_supply_config psy_main_cfg = {}, psy_bu_cfg = {};
 
 	if (!machine_is_collie())
 		return -ENODEV;
@@ -334,12 +338,23 @@ static int collie_bat_probe(struct ucb1x00_dev *dev)
 
 	INIT_WORK(&bat_work, collie_bat_work);
 
-	ret = power_supply_register(&dev->ucb->dev, &collie_bat_main.psy);
-	if (ret)
+	psy_main_cfg.drv_data = &collie_bat_main;
+	collie_bat_main.psy = power_supply_register(&dev->ucb->dev,
+						    &collie_bat_main_desc,
+						    &psy_main_cfg);
+	if (IS_ERR(collie_bat_main.psy)) {
+		ret = PTR_ERR(collie_bat_main.psy);
 		goto err_psy_reg_main;
-	ret = power_supply_register(&dev->ucb->dev, &collie_bat_bu.psy);
-	if (ret)
+	}
+
+	psy_main_cfg.drv_data = &collie_bat_bu;
+	collie_bat_bu.psy = power_supply_register(&dev->ucb->dev,
+						  &collie_bat_bu_desc,
+						  &psy_bu_cfg);
+	if (IS_ERR(collie_bat_bu.psy)) {
+		ret = PTR_ERR(collie_bat_bu.psy);
 		goto err_psy_reg_bu;
+	}
 
 	ret = request_irq(gpio_to_irq(COLLIE_GPIO_CO),
 				collie_bat_gpio_isr,
@@ -354,9 +369,9 @@ static int collie_bat_probe(struct ucb1x00_dev *dev)
 	return 0;
 
 err_irq:
-	power_supply_unregister(&collie_bat_bu.psy);
+	power_supply_unregister(collie_bat_bu.psy);
 err_psy_reg_bu:
-	power_supply_unregister(&collie_bat_main.psy);
+	power_supply_unregister(collie_bat_main.psy);
 err_psy_reg_main:
 
 	/* see comment in collie_bat_remove */
@@ -369,8 +384,8 @@ static void collie_bat_remove(struct ucb1x00_dev *dev)
 {
 	free_irq(gpio_to_irq(COLLIE_GPIO_CO), &collie_bat_main);
 
-	power_supply_unregister(&collie_bat_bu.psy);
-	power_supply_unregister(&collie_bat_main.psy);
+	power_supply_unregister(collie_bat_bu.psy);
+	power_supply_unregister(collie_bat_main.psy);
 
 	/*
 	 * Now cancel the bat_work.  We won't get any more schedules,
diff --git a/drivers/power/da9030_battery.c b/drivers/power/da9030_battery.c
index 78cd5d6..5ca0f4d 100644
--- a/drivers/power/da9030_battery.c
+++ b/drivers/power/da9030_battery.c
@@ -89,7 +89,8 @@ struct da9030_battery_thresholds {
 };
 
 struct da9030_charger {
-	struct power_supply psy;
+	struct power_supply *psy;
+	struct power_supply_desc psy_desc;
 
 	struct device *master;
 
@@ -245,7 +246,7 @@ static void da9030_set_charge(struct da9030_charger *charger, int on)
 
 	da903x_write(charger->master, DA9030_CHARGE_CONTROL, val);
 
-	power_supply_changed(&charger->psy);
+	power_supply_changed(charger->psy);
 }
 
 static void da9030_charger_check_state(struct da9030_charger *charger)
@@ -341,8 +342,7 @@ static int da9030_battery_get_property(struct power_supply *psy,
 				   enum power_supply_property psp,
 				   union power_supply_propval *val)
 {
-	struct da9030_charger *charger;
-	charger = container_of(psy, struct da9030_charger, psy);
+	struct da9030_charger *charger = power_supply_get_drvdata(psy);
 
 	switch (psp) {
 	case POWER_SUPPLY_PROP_STATUS:
@@ -447,16 +447,16 @@ static void da9030_battery_convert_thresholds(struct da9030_charger *charger,
 
 static void da9030_battery_setup_psy(struct da9030_charger *charger)
 {
-	struct power_supply *psy = &charger->psy;
+	struct power_supply_desc *psy_desc = &charger->psy_desc;
 	struct power_supply_info *info = charger->battery_info;
 
-	psy->name = info->name;
-	psy->use_for_apm = info->use_for_apm;
-	psy->type = POWER_SUPPLY_TYPE_BATTERY;
-	psy->get_property = da9030_battery_get_property;
+	psy_desc->name = info->name;
+	psy_desc->use_for_apm = info->use_for_apm;
+	psy_desc->type = POWER_SUPPLY_TYPE_BATTERY;
+	psy_desc->get_property = da9030_battery_get_property;
 
-	psy->properties = da9030_battery_props;
-	psy->num_properties = ARRAY_SIZE(da9030_battery_props);
+	psy_desc->properties = da9030_battery_props;
+	psy_desc->num_properties = ARRAY_SIZE(da9030_battery_props);
 };
 
 static int da9030_battery_charger_init(struct da9030_charger *charger)
@@ -494,6 +494,7 @@ static int da9030_battery_charger_init(struct da9030_charger *charger)
 static int da9030_battery_probe(struct platform_device *pdev)
 {
 	struct da9030_charger *charger;
+	struct power_supply_config psy_cfg = {};
 	struct da9030_battery_info *pdata = pdev->dev.platform_data;
 	int ret;
 
@@ -541,9 +542,13 @@ static int da9030_battery_probe(struct platform_device *pdev)
 		goto err_notifier;
 
 	da9030_battery_setup_psy(charger);
-	ret = power_supply_register(&pdev->dev, &charger->psy);
-	if (ret)
+	psy_cfg.drv_data = charger;
+	charger->psy = power_supply_register(&pdev->dev, &charger->psy_desc,
+					     &psy_cfg);
+	if (IS_ERR(charger->psy)) {
+		ret = PTR_ERR(charger->psy);
 		goto err_ps_register;
+	}
 
 	charger->debug_file = da9030_bat_create_debugfs(charger);
 	platform_set_drvdata(pdev, charger);
@@ -571,7 +576,7 @@ static int da9030_battery_remove(struct platform_device *dev)
 				   DA9030_EVENT_CHIOVER | DA9030_EVENT_TBAT);
 	cancel_delayed_work_sync(&charger->work);
 	da9030_set_charge(charger, 0);
-	power_supply_unregister(&charger->psy);
+	power_supply_unregister(charger->psy);
 
 	return 0;
 }
diff --git a/drivers/power/da9052-battery.c b/drivers/power/da9052-battery.c
index d17250f..830ec46 100644
--- a/drivers/power/da9052-battery.c
+++ b/drivers/power/da9052-battery.c
@@ -169,7 +169,7 @@ static u32 const vc_tbl[3][68][2] = {
 
 struct da9052_battery {
 	struct da9052 *da9052;
-	struct power_supply psy;
+	struct power_supply *psy;
 	struct notifier_block nb;
 	int charger_type;
 	int status;
@@ -452,7 +452,7 @@ static irqreturn_t da9052_bat_irq(int irq, void *data)
 
 	if (irq == DA9052_IRQ_CHGEND || irq == DA9052_IRQ_DCIN ||
 	    irq == DA9052_IRQ_VBUS || irq == DA9052_IRQ_TBAT) {
-		power_supply_changed(&bat->psy);
+		power_supply_changed(bat->psy);
 	}
 
 	return IRQ_HANDLED;
@@ -499,8 +499,7 @@ static int da9052_bat_get_property(struct power_supply *psy,
 {
 	int ret;
 	int illegal;
-	struct da9052_battery *bat = container_of(psy, struct da9052_battery,
-						  psy);
+	struct da9052_battery *bat = power_supply_get_drvdata(psy);
 
 	ret = da9052_bat_check_presence(bat, &illegal);
 	if (ret < 0)
@@ -561,7 +560,7 @@ static enum power_supply_property da9052_bat_props[] = {
 	POWER_SUPPLY_PROP_TECHNOLOGY,
 };
 
-static struct power_supply template_battery = {
+static struct power_supply_desc psy_desc = {
 	.name		= "da9052-bat",
 	.type		= POWER_SUPPLY_TYPE_BATTERY,
 	.properties	= da9052_bat_props,
@@ -591,6 +590,7 @@ static s32 da9052_bat_probe(struct platform_device *pdev)
 {
 	struct da9052_pdata *pdata;
 	struct da9052_battery *bat;
+	struct power_supply_config psy_cfg = {};
 	int ret;
 	int i;
 
@@ -599,8 +599,9 @@ static s32 da9052_bat_probe(struct platform_device *pdev)
 	if (!bat)
 		return -ENOMEM;
 
+	psy_cfg.drv_data = bat;
+
 	bat->da9052 = dev_get_drvdata(pdev->dev.parent);
-	bat->psy = template_battery;
 	bat->charger_type = DA9052_NOCHARGER;
 	bat->status = POWER_SUPPLY_STATUS_UNKNOWN;
 	bat->health = POWER_SUPPLY_HEALTH_UNKNOWN;
@@ -608,9 +609,9 @@ static s32 da9052_bat_probe(struct platform_device *pdev)
 
 	pdata = bat->da9052->dev->platform_data;
 	if (pdata != NULL && pdata->use_for_apm)
-		bat->psy.use_for_apm = pdata->use_for_apm;
+		psy_desc.use_for_apm = pdata->use_for_apm;
 	else
-		bat->psy.use_for_apm = 1;
+		psy_desc.use_for_apm = 1;
 
 	for (i = 0; i < ARRAY_SIZE(da9052_bat_irqs); i++) {
 		ret = da9052_request_irq(bat->da9052,
@@ -625,9 +626,11 @@ static s32 da9052_bat_probe(struct platform_device *pdev)
 		}
 	}
 
-	ret = power_supply_register(&pdev->dev, &bat->psy);
-	 if (ret)
+	bat->psy = power_supply_register(&pdev->dev, &psy_desc, &psy_cfg);
+	if (IS_ERR(bat->psy)) {
+		ret = PTR_ERR(bat->psy);
 		goto err;
+	}
 
 	platform_set_drvdata(pdev, bat);
 	return 0;
@@ -646,7 +649,7 @@ static int da9052_bat_remove(struct platform_device *pdev)
 	for (i = 0; i < ARRAY_SIZE(da9052_bat_irqs); i++)
 		da9052_free_irq(bat->da9052, da9052_bat_irq_bits[i], bat);
 
-	power_supply_unregister(&bat->psy);
+	power_supply_unregister(bat->psy);
 
 	return 0;
 }
diff --git a/drivers/power/da9150-charger.c b/drivers/power/da9150-charger.c
new file mode 100644
index 0000000..6009981
--- /dev/null
+++ b/drivers/power/da9150-charger.c
@@ -0,0 +1,694 @@
+/*
+ * DA9150 Charger Driver
+ *
+ * Copyright (c) 2014 Dialog Semiconductor
+ *
+ * Author: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/of.h>
+#include <linux/of_platform.h>
+#include <linux/interrupt.h>
+#include <linux/power_supply.h>
+#include <linux/notifier.h>
+#include <linux/usb/phy.h>
+#include <linux/iio/consumer.h>
+#include <linux/mfd/da9150/core.h>
+#include <linux/mfd/da9150/registers.h>
+
+/* Private data */
+struct da9150_charger {
+	struct da9150 *da9150;
+	struct device *dev;
+
+	struct power_supply *usb;
+	struct power_supply *battery;
+	struct power_supply *supply_online;
+
+	struct usb_phy *usb_phy;
+	struct notifier_block otg_nb;
+	struct work_struct otg_work;
+	unsigned long usb_event;
+
+	struct iio_channel *ibus_chan;
+	struct iio_channel *vbus_chan;
+	struct iio_channel *tjunc_chan;
+	struct iio_channel *vbat_chan;
+};
+
+static inline int da9150_charger_supply_online(struct da9150_charger *charger,
+					       struct power_supply *psy,
+					       union power_supply_propval *val)
+{
+	val->intval = (psy == charger->supply_online) ? 1 : 0;
+
+	return 0;
+}
+
+/* Charger Properties */
+static int da9150_charger_vbus_voltage_now(struct da9150_charger *charger,
+					   union power_supply_propval *val)
+{
+	int v_val, ret;
+
+	/* Read processed value - mV units */
+	ret = iio_read_channel_processed(charger->vbus_chan, &v_val);
+	if (ret < 0)
+		return ret;
+
+	/* Convert voltage to expected uV units */
+	val->intval = v_val * 1000;
+
+	return 0;
+}
+
+static int da9150_charger_ibus_current_avg(struct da9150_charger *charger,
+					   union power_supply_propval *val)
+{
+	int i_val, ret;
+
+	/* Read processed value - mA units */
+	ret = iio_read_channel_processed(charger->ibus_chan, &i_val);
+	if (ret < 0)
+		return ret;
+
+	/* Convert current to expected uA units */
+	val->intval = i_val * 1000;
+
+	return 0;
+}
+
+static int da9150_charger_tjunc_temp(struct da9150_charger *charger,
+				     union power_supply_propval *val)
+{
+	int t_val, ret;
+
+	/* Read processed value - 0.001 degrees C units */
+	ret = iio_read_channel_processed(charger->tjunc_chan, &t_val);
+	if (ret < 0)
+		return ret;
+
+	/* Convert temp to expect 0.1 degrees C units */
+	val->intval = t_val / 100;
+
+	return 0;
+}
+
+static enum power_supply_property da9150_charger_props[] = {
+	POWER_SUPPLY_PROP_ONLINE,
+	POWER_SUPPLY_PROP_VOLTAGE_NOW,
+	POWER_SUPPLY_PROP_CURRENT_AVG,
+	POWER_SUPPLY_PROP_TEMP,
+};
+
+static int da9150_charger_get_prop(struct power_supply *psy,
+				   enum power_supply_property psp,
+				   union power_supply_propval *val)
+{
+	struct da9150_charger *charger = dev_get_drvdata(psy->dev.parent);
+	int ret;
+
+	switch (psp) {
+	case POWER_SUPPLY_PROP_ONLINE:
+		ret = da9150_charger_supply_online(charger, psy, val);
+		break;
+	case POWER_SUPPLY_PROP_VOLTAGE_NOW:
+		ret = da9150_charger_vbus_voltage_now(charger, val);
+		break;
+	case POWER_SUPPLY_PROP_CURRENT_AVG:
+		ret = da9150_charger_ibus_current_avg(charger, val);
+		break;
+	case POWER_SUPPLY_PROP_TEMP:
+		ret = da9150_charger_tjunc_temp(charger, val);
+		break;
+	default:
+		ret = -EINVAL;
+		break;
+	}
+
+	return ret;
+}
+
+/* Battery Properties */
+static int da9150_charger_battery_status(struct da9150_charger *charger,
+					 union power_supply_propval *val)
+{
+	u8 reg;
+
+	/* Check to see if battery is discharging */
+	reg = da9150_reg_read(charger->da9150, DA9150_STATUS_H);
+
+	if (((reg & DA9150_VBUS_STAT_MASK) == DA9150_VBUS_STAT_OFF) ||
+	    ((reg & DA9150_VBUS_STAT_MASK) == DA9150_VBUS_STAT_WAIT)) {
+		val->intval = POWER_SUPPLY_STATUS_DISCHARGING;
+
+		return 0;
+	}
+
+	reg = da9150_reg_read(charger->da9150, DA9150_STATUS_J);
+
+	/* Now check for other states */
+	switch (reg & DA9150_CHG_STAT_MASK) {
+	case DA9150_CHG_STAT_ACT:
+	case DA9150_CHG_STAT_PRE:
+	case DA9150_CHG_STAT_CC:
+	case DA9150_CHG_STAT_CV:
+		val->intval = POWER_SUPPLY_STATUS_CHARGING;
+		break;
+	case DA9150_CHG_STAT_OFF:
+	case DA9150_CHG_STAT_SUSP:
+	case DA9150_CHG_STAT_TEMP:
+	case DA9150_CHG_STAT_TIME:
+	case DA9150_CHG_STAT_BAT:
+		val->intval = POWER_SUPPLY_STATUS_NOT_CHARGING;
+		break;
+	case DA9150_CHG_STAT_FULL:
+		val->intval = POWER_SUPPLY_STATUS_FULL;
+		break;
+	default:
+		val->intval = POWER_SUPPLY_STATUS_UNKNOWN;
+		break;
+	}
+
+	return 0;
+}
+
+static int da9150_charger_battery_health(struct da9150_charger *charger,
+					 union power_supply_propval *val)
+{
+	u8 reg;
+
+	reg = da9150_reg_read(charger->da9150, DA9150_STATUS_J);
+
+	/* Check if temperature limit reached */
+	switch (reg & DA9150_CHG_TEMP_MASK) {
+	case DA9150_CHG_TEMP_UNDER:
+		val->intval = POWER_SUPPLY_HEALTH_COLD;
+		return 0;
+	case DA9150_CHG_TEMP_OVER:
+		val->intval = POWER_SUPPLY_HEALTH_OVERHEAT;
+		return 0;
+	default:
+		break;
+	}
+
+	/* Check for other health states */
+	switch (reg & DA9150_CHG_STAT_MASK) {
+	case DA9150_CHG_STAT_ACT:
+	case DA9150_CHG_STAT_PRE:
+		val->intval = POWER_SUPPLY_HEALTH_DEAD;
+		break;
+	case DA9150_CHG_STAT_TIME:
+		val->intval = POWER_SUPPLY_HEALTH_UNSPEC_FAILURE;
+		break;
+	default:
+		val->intval = POWER_SUPPLY_HEALTH_GOOD;
+		break;
+	}
+
+	return 0;
+}
+
+static int da9150_charger_battery_present(struct da9150_charger *charger,
+					  union power_supply_propval *val)
+{
+	u8 reg;
+
+	/* Check if battery present or removed */
+	reg = da9150_reg_read(charger->da9150, DA9150_STATUS_J);
+	if ((reg & DA9150_CHG_STAT_MASK) == DA9150_CHG_STAT_BAT)
+		val->intval = 0;
+	else
+		val->intval = 1;
+
+	return 0;
+}
+
+static int da9150_charger_battery_charge_type(struct da9150_charger *charger,
+					      union power_supply_propval *val)
+{
+	u8 reg;
+
+	reg = da9150_reg_read(charger->da9150, DA9150_STATUS_J);
+
+	switch (reg & DA9150_CHG_STAT_MASK) {
+	case DA9150_CHG_STAT_CC:
+		val->intval = POWER_SUPPLY_CHARGE_TYPE_FAST;
+		break;
+	case DA9150_CHG_STAT_ACT:
+	case DA9150_CHG_STAT_PRE:
+	case DA9150_CHG_STAT_CV:
+		val->intval = POWER_SUPPLY_CHARGE_TYPE_TRICKLE;
+		break;
+	default:
+		val->intval = POWER_SUPPLY_CHARGE_TYPE_NONE;
+		break;
+	}
+
+	return 0;
+}
+
+static int da9150_charger_battery_voltage_min(struct da9150_charger *charger,
+					      union power_supply_propval *val)
+{
+	u8 reg;
+
+	reg = da9150_reg_read(charger->da9150, DA9150_PPR_CHGCTRL_C);
+
+	/* Value starts at 2500 mV, 50 mV increments, presented in uV */
+	val->intval = ((reg & DA9150_CHG_VFAULT_MASK) * 50000) + 2500000;
+
+	return 0;
+}
+
+static int da9150_charger_battery_voltage_now(struct da9150_charger *charger,
+					      union power_supply_propval *val)
+{
+	int v_val, ret;
+
+	/* Read processed value - mV units */
+	ret = iio_read_channel_processed(charger->vbat_chan, &v_val);
+	if (ret < 0)
+		return ret;
+
+	val->intval = v_val * 1000;
+
+	return 0;
+}
+
+static int da9150_charger_battery_current_max(struct da9150_charger *charger,
+					      union power_supply_propval *val)
+{
+	int reg;
+
+	reg = da9150_reg_read(charger->da9150, DA9150_PPR_CHGCTRL_D);
+
+	/* 25mA increments */
+	val->intval = reg * 25000;
+
+	return 0;
+}
+
+static int da9150_charger_battery_voltage_max(struct da9150_charger *charger,
+					      union power_supply_propval *val)
+{
+	u8 reg;
+
+	reg = da9150_reg_read(charger->da9150, DA9150_PPR_CHGCTRL_B);
+
+	/* Value starts at 3650 mV, 25 mV increments, presented in uV */
+	val->intval = ((reg & DA9150_CHG_VBAT_MASK) * 25000) + 3650000;
+	return 0;
+}
+
+static enum power_supply_property da9150_charger_bat_props[] = {
+	POWER_SUPPLY_PROP_STATUS,
+	POWER_SUPPLY_PROP_ONLINE,
+	POWER_SUPPLY_PROP_HEALTH,
+	POWER_SUPPLY_PROP_PRESENT,
+	POWER_SUPPLY_PROP_CHARGE_TYPE,
+	POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN,
+	POWER_SUPPLY_PROP_VOLTAGE_NOW,
+	POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX,
+	POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX,
+};
+
+static int da9150_charger_battery_get_prop(struct power_supply *psy,
+					   enum power_supply_property psp,
+					   union power_supply_propval *val)
+{
+	struct da9150_charger *charger = dev_get_drvdata(psy->dev.parent);
+	int ret;
+
+	switch (psp) {
+	case POWER_SUPPLY_PROP_STATUS:
+		ret = da9150_charger_battery_status(charger, val);
+		break;
+	case POWER_SUPPLY_PROP_ONLINE:
+		ret = da9150_charger_supply_online(charger, psy, val);
+		break;
+	case POWER_SUPPLY_PROP_HEALTH:
+		ret = da9150_charger_battery_health(charger, val);
+		break;
+	case POWER_SUPPLY_PROP_PRESENT:
+		ret = da9150_charger_battery_present(charger, val);
+		break;
+	case POWER_SUPPLY_PROP_CHARGE_TYPE:
+		ret = da9150_charger_battery_charge_type(charger, val);
+		break;
+	case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN:
+		ret = da9150_charger_battery_voltage_min(charger, val);
+		break;
+	case POWER_SUPPLY_PROP_VOLTAGE_NOW:
+		ret = da9150_charger_battery_voltage_now(charger, val);
+		break;
+	case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX:
+		ret = da9150_charger_battery_current_max(charger, val);
+		break;
+	case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX:
+		ret = da9150_charger_battery_voltage_max(charger, val);
+		break;
+	default:
+		ret = -EINVAL;
+		break;
+	}
+
+	return ret;
+}
+
+static irqreturn_t da9150_charger_chg_irq(int irq, void *data)
+{
+	struct da9150_charger *charger = data;
+
+	power_supply_changed(charger->battery);
+
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t da9150_charger_tjunc_irq(int irq, void *data)
+{
+	struct da9150_charger *charger = data;
+
+	/* Nothing we can really do except report this. */
+	dev_crit(charger->dev, "TJunc over temperature!!!\n");
+	power_supply_changed(charger->usb);
+
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t da9150_charger_vfault_irq(int irq, void *data)
+{
+	struct da9150_charger *charger = data;
+
+	/* Nothing we can really do except report this. */
+	dev_crit(charger->dev, "VSYS under voltage!!!\n");
+	power_supply_changed(charger->usb);
+	power_supply_changed(charger->battery);
+
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t da9150_charger_vbus_irq(int irq, void *data)
+{
+	struct da9150_charger *charger = data;
+	u8 reg;
+
+	reg = da9150_reg_read(charger->da9150, DA9150_STATUS_H);
+
+	/* Charger plugged in or battery only */
+	switch (reg & DA9150_VBUS_STAT_MASK) {
+	case DA9150_VBUS_STAT_OFF:
+	case DA9150_VBUS_STAT_WAIT:
+		charger->supply_online = charger->battery;
+		break;
+	case DA9150_VBUS_STAT_CHG:
+		charger->supply_online = charger->usb;
+		break;
+	default:
+		dev_warn(charger->dev, "Unknown VBUS state - reg = 0x%x\n",
+			 reg);
+		charger->supply_online = NULL;
+		break;
+	}
+
+	power_supply_changed(charger->usb);
+	power_supply_changed(charger->battery);
+
+	return IRQ_HANDLED;
+}
+
+static void da9150_charger_otg_work(struct work_struct *data)
+{
+	struct da9150_charger *charger =
+		container_of(data, struct da9150_charger, otg_work);
+
+	switch (charger->usb_event) {
+	case USB_EVENT_ID:
+		/* Enable OTG Boost */
+		da9150_set_bits(charger->da9150, DA9150_PPR_BKCTRL_A,
+				DA9150_VBUS_MODE_MASK, DA9150_VBUS_MODE_OTG);
+		break;
+	case USB_EVENT_NONE:
+		/* Revert to charge mode */
+		power_supply_changed(charger->usb);
+		power_supply_changed(charger->battery);
+		da9150_set_bits(charger->da9150, DA9150_PPR_BKCTRL_A,
+				DA9150_VBUS_MODE_MASK, DA9150_VBUS_MODE_CHG);
+		break;
+	}
+}
+
+static int da9150_charger_otg_ncb(struct notifier_block *nb, unsigned long val,
+				  void *priv)
+{
+	struct da9150_charger *charger =
+		container_of(nb, struct da9150_charger, otg_nb);
+
+	dev_dbg(charger->dev, "DA9150 OTG notify %lu\n", val);
+
+	charger->usb_event = val;
+	schedule_work(&charger->otg_work);
+
+	return NOTIFY_OK;
+}
+
+static int da9150_charger_register_irq(struct platform_device *pdev,
+				       irq_handler_t handler,
+				       const char *irq_name)
+{
+	struct device *dev = &pdev->dev;
+	struct da9150_charger *charger = platform_get_drvdata(pdev);
+	int irq, ret;
+
+	irq = platform_get_irq_byname(pdev, irq_name);
+	if (irq < 0) {
+		dev_err(dev, "Failed to get IRQ CHG_STATUS: %d\n", irq);
+		return irq;
+	}
+
+	ret = request_threaded_irq(irq, NULL, handler, IRQF_ONESHOT, irq_name,
+				   charger);
+	if (ret)
+		dev_err(dev, "Failed to request IRQ %d: %d\n", irq, ret);
+
+	return ret;
+}
+
+static void da9150_charger_unregister_irq(struct platform_device *pdev,
+					  const char *irq_name)
+{
+	struct device *dev = &pdev->dev;
+	struct da9150_charger *charger = platform_get_drvdata(pdev);
+	int irq;
+
+	irq = platform_get_irq_byname(pdev, irq_name);
+	if (irq < 0) {
+		dev_err(dev, "Failed to get IRQ CHG_STATUS: %d\n", irq);
+		return;
+	}
+
+	free_irq(irq, charger);
+}
+
+static const struct power_supply_desc usb_desc = {
+	.name		= "da9150-usb",
+	.type		= POWER_SUPPLY_TYPE_USB,
+	.properties	= da9150_charger_props,
+	.num_properties	= ARRAY_SIZE(da9150_charger_props),
+	.get_property	= da9150_charger_get_prop,
+};
+
+static const struct power_supply_desc battery_desc = {
+	.name		= "da9150-battery",
+	.type		= POWER_SUPPLY_TYPE_BATTERY,
+	.properties	= da9150_charger_bat_props,
+	.num_properties	= ARRAY_SIZE(da9150_charger_bat_props),
+	.get_property	= da9150_charger_battery_get_prop,
+};
+
+static int da9150_charger_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct da9150 *da9150 = dev_get_drvdata(dev->parent);
+	struct da9150_charger *charger;
+	u8 reg;
+	int ret;
+
+	charger = devm_kzalloc(dev, sizeof(struct da9150_charger), GFP_KERNEL);
+	if (!charger)
+		return -ENOMEM;
+
+	platform_set_drvdata(pdev, charger);
+	charger->da9150 = da9150;
+	charger->dev = dev;
+
+	/* Acquire ADC channels */
+	charger->ibus_chan = iio_channel_get(dev, "CHAN_IBUS");
+	if (IS_ERR(charger->ibus_chan)) {
+		ret = PTR_ERR(charger->ibus_chan);
+		goto ibus_chan_fail;
+	}
+
+	charger->vbus_chan = iio_channel_get(dev, "CHAN_VBUS");
+	if (IS_ERR(charger->vbus_chan)) {
+		ret = PTR_ERR(charger->vbus_chan);
+		goto vbus_chan_fail;
+	}
+
+	charger->tjunc_chan = iio_channel_get(dev, "CHAN_TJUNC");
+	if (IS_ERR(charger->tjunc_chan)) {
+		ret = PTR_ERR(charger->tjunc_chan);
+		goto tjunc_chan_fail;
+	}
+
+	charger->vbat_chan = iio_channel_get(dev, "CHAN_VBAT");
+	if (IS_ERR(charger->vbat_chan)) {
+		ret = PTR_ERR(charger->vbat_chan);
+		goto vbat_chan_fail;
+	}
+
+	/* Register power supplies */
+	charger->usb = power_supply_register(dev, &usb_desc, NULL);
+	if (IS_ERR(charger->usb)) {
+		ret = PTR_ERR(charger->usb);
+		goto usb_fail;
+	}
+
+	charger->battery = power_supply_register(dev, &battery_desc, NULL);
+	if (IS_ERR(charger->battery)) {
+		ret = PTR_ERR(charger->battery);
+		goto battery_fail;
+	}
+
+	/* Get initial online supply */
+	reg = da9150_reg_read(da9150, DA9150_STATUS_H);
+
+	switch (reg & DA9150_VBUS_STAT_MASK) {
+	case DA9150_VBUS_STAT_OFF:
+	case DA9150_VBUS_STAT_WAIT:
+		charger->supply_online = charger->battery;
+		break;
+	case DA9150_VBUS_STAT_CHG:
+		charger->supply_online = charger->usb;
+		break;
+	default:
+		dev_warn(dev, "Unknown VBUS state - reg = 0x%x\n", reg);
+		charger->supply_online = NULL;
+		break;
+	}
+
+	/* Setup OTG reporting & configuration */
+	charger->usb_phy = devm_usb_get_phy(dev, USB_PHY_TYPE_USB2);
+	if (!IS_ERR_OR_NULL(charger->usb_phy)) {
+		INIT_WORK(&charger->otg_work, da9150_charger_otg_work);
+		charger->otg_nb.notifier_call = da9150_charger_otg_ncb;
+		usb_register_notifier(charger->usb_phy, &charger->otg_nb);
+	}
+
+	/* Register IRQs */
+	ret = da9150_charger_register_irq(pdev, da9150_charger_chg_irq,
+					  "CHG_STATUS");
+	if (ret < 0)
+		goto chg_irq_fail;
+
+	ret = da9150_charger_register_irq(pdev, da9150_charger_tjunc_irq,
+					  "CHG_TJUNC");
+	if (ret < 0)
+		goto tjunc_irq_fail;
+
+	ret = da9150_charger_register_irq(pdev, da9150_charger_vfault_irq,
+					  "CHG_VFAULT");
+	if (ret < 0)
+		goto vfault_irq_fail;
+
+	ret = da9150_charger_register_irq(pdev, da9150_charger_vbus_irq,
+					  "CHG_VBUS");
+	if (ret < 0)
+		goto vbus_irq_fail;
+
+	return 0;
+
+
+vbus_irq_fail:
+	da9150_charger_unregister_irq(pdev, "CHG_VFAULT");
+vfault_irq_fail:
+	da9150_charger_unregister_irq(pdev, "CHG_TJUNC");
+tjunc_irq_fail:
+	da9150_charger_unregister_irq(pdev, "CHG_STATUS");
+chg_irq_fail:
+	if (!IS_ERR_OR_NULL(charger->usb_phy))
+		usb_unregister_notifier(charger->usb_phy, &charger->otg_nb);
+battery_fail:
+	power_supply_unregister(charger->usb);
+
+usb_fail:
+	iio_channel_release(charger->vbat_chan);
+
+vbat_chan_fail:
+	iio_channel_release(charger->tjunc_chan);
+
+tjunc_chan_fail:
+	iio_channel_release(charger->vbus_chan);
+
+vbus_chan_fail:
+	iio_channel_release(charger->ibus_chan);
+
+ibus_chan_fail:
+	return ret;
+}
+
+static int da9150_charger_remove(struct platform_device *pdev)
+{
+	struct da9150_charger *charger = platform_get_drvdata(pdev);
+	int irq;
+
+	/* Make sure IRQs are released before unregistering power supplies */
+	irq = platform_get_irq_byname(pdev, "CHG_VBUS");
+	free_irq(irq, charger);
+
+	irq = platform_get_irq_byname(pdev, "CHG_VFAULT");
+	free_irq(irq, charger);
+
+	irq = platform_get_irq_byname(pdev, "CHG_TJUNC");
+	free_irq(irq, charger);
+
+	irq = platform_get_irq_byname(pdev, "CHG_STATUS");
+	free_irq(irq, charger);
+
+	if (!IS_ERR_OR_NULL(charger->usb_phy))
+		usb_unregister_notifier(charger->usb_phy, &charger->otg_nb);
+
+	power_supply_unregister(charger->battery);
+	power_supply_unregister(charger->usb);
+
+	/* Release ADC channels */
+	iio_channel_release(charger->ibus_chan);
+	iio_channel_release(charger->vbus_chan);
+	iio_channel_release(charger->tjunc_chan);
+	iio_channel_release(charger->vbat_chan);
+
+	return 0;
+}
+
+static struct platform_driver da9150_charger_driver = {
+	.driver = {
+		.name = "da9150-charger",
+	},
+	.probe = da9150_charger_probe,
+	.remove = da9150_charger_remove,
+};
+
+module_platform_driver(da9150_charger_driver);
+
+MODULE_DESCRIPTION("Charger Driver for DA9150");
+MODULE_AUTHOR("Adam Thomson <Adam.Thomson.Opensource@diasemi.com>");
+MODULE_LICENSE("GPL");
diff --git a/drivers/power/ds2760_battery.c b/drivers/power/ds2760_battery.c
index 85b4e6e..80f73cc 100644
--- a/drivers/power/ds2760_battery.c
+++ b/drivers/power/ds2760_battery.c
@@ -53,7 +53,8 @@ struct ds2760_device_info {
 	int charge_status;		/* POWER_SUPPLY_STATUS_* */
 
 	int full_counter;
-	struct power_supply bat;
+	struct power_supply *bat;
+	struct power_supply_desc bat_desc;
 	struct device *w1_dev;
 	struct workqueue_struct *monitor_wqueue;
 	struct delayed_work monitor_work;
@@ -254,7 +255,7 @@ static void ds2760_battery_update_status(struct ds2760_device_info *di)
 	if (di->charge_status == POWER_SUPPLY_STATUS_UNKNOWN)
 		di->full_counter = 0;
 
-	if (power_supply_am_i_supplied(&di->bat)) {
+	if (power_supply_am_i_supplied(di->bat)) {
 		if (di->current_uA > 10000) {
 			di->charge_status = POWER_SUPPLY_STATUS_CHARGING;
 			di->full_counter = 0;
@@ -287,7 +288,7 @@ static void ds2760_battery_update_status(struct ds2760_device_info *di)
 	}
 
 	if (di->charge_status != old_charge_status)
-		power_supply_changed(&di->bat);
+		power_supply_changed(di->bat);
 }
 
 static void ds2760_battery_write_status(struct ds2760_device_info *di,
@@ -346,12 +347,9 @@ static void ds2760_battery_work(struct work_struct *work)
 	queue_delayed_work(di->monitor_wqueue, &di->monitor_work, interval);
 }
 
-#define to_ds2760_device_info(x) container_of((x), struct ds2760_device_info, \
-					      bat);
-
 static void ds2760_battery_external_power_changed(struct power_supply *psy)
 {
-	struct ds2760_device_info *di = to_ds2760_device_info(psy);
+	struct ds2760_device_info *di = power_supply_get_drvdata(psy);
 
 	dev_dbg(di->dev, "%s\n", __func__);
 
@@ -377,7 +375,7 @@ static void ds2760_battery_set_charged_work(struct work_struct *work)
 	 * that error.
 	 */
 
-	if (!power_supply_am_i_supplied(&di->bat))
+	if (!power_supply_am_i_supplied(di->bat))
 		return;
 
 	bias = (signed char) di->current_raw +
@@ -396,7 +394,7 @@ static void ds2760_battery_set_charged_work(struct work_struct *work)
 
 static void ds2760_battery_set_charged(struct power_supply *psy)
 {
-	struct ds2760_device_info *di = to_ds2760_device_info(psy);
+	struct ds2760_device_info *di = power_supply_get_drvdata(psy);
 
 	/* postpone the actual work by 20 secs. This is for debouncing GPIO
 	 * signals and to let the current value settle. See AN4188. */
@@ -407,7 +405,7 @@ static int ds2760_battery_get_property(struct power_supply *psy,
 				       enum power_supply_property psp,
 				       union power_supply_propval *val)
 {
-	struct ds2760_device_info *di = to_ds2760_device_info(psy);
+	struct ds2760_device_info *di = power_supply_get_drvdata(psy);
 
 	switch (psp) {
 	case POWER_SUPPLY_PROP_STATUS:
@@ -458,7 +456,7 @@ static int ds2760_battery_set_property(struct power_supply *psy,
 				       enum power_supply_property psp,
 				       const union power_supply_propval *val)
 {
-	struct ds2760_device_info *di = to_ds2760_device_info(psy);
+	struct ds2760_device_info *di = power_supply_get_drvdata(psy);
 
 	switch (psp) {
 	case POWER_SUPPLY_PROP_CHARGE_FULL:
@@ -508,6 +506,7 @@ static enum power_supply_property ds2760_battery_props[] = {
 
 static int ds2760_battery_probe(struct platform_device *pdev)
 {
+	struct power_supply_config psy_cfg = {};
 	char status;
 	int retval = 0;
 	struct ds2760_device_info *di;
@@ -520,20 +519,22 @@ static int ds2760_battery_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, di);
 
-	di->dev			= &pdev->dev;
-	di->w1_dev		= pdev->dev.parent;
-	di->bat.name		= dev_name(&pdev->dev);
-	di->bat.type		= POWER_SUPPLY_TYPE_BATTERY;
-	di->bat.properties	= ds2760_battery_props;
-	di->bat.num_properties	= ARRAY_SIZE(ds2760_battery_props);
-	di->bat.get_property	= ds2760_battery_get_property;
-	di->bat.set_property	= ds2760_battery_set_property;
-	di->bat.property_is_writeable =
+	di->dev				= &pdev->dev;
+	di->w1_dev			= pdev->dev.parent;
+	di->bat_desc.name		= dev_name(&pdev->dev);
+	di->bat_desc.type		= POWER_SUPPLY_TYPE_BATTERY;
+	di->bat_desc.properties		= ds2760_battery_props;
+	di->bat_desc.num_properties	= ARRAY_SIZE(ds2760_battery_props);
+	di->bat_desc.get_property	= ds2760_battery_get_property;
+	di->bat_desc.set_property	= ds2760_battery_set_property;
+	di->bat_desc.property_is_writeable =
 				  ds2760_battery_property_is_writeable;
-	di->bat.set_charged	= ds2760_battery_set_charged;
-	di->bat.external_power_changed =
+	di->bat_desc.set_charged	= ds2760_battery_set_charged;
+	di->bat_desc.external_power_changed =
 				  ds2760_battery_external_power_changed;
 
+	psy_cfg.drv_data		= di;
+
 	di->charge_status = POWER_SUPPLY_STATUS_UNKNOWN;
 
 	/* enable sleep mode feature */
@@ -555,9 +556,10 @@ static int ds2760_battery_probe(struct platform_device *pdev)
 	if (current_accum)
 		ds2760_battery_set_current_accum(di, current_accum);
 
-	retval = power_supply_register(&pdev->dev, &di->bat);
-	if (retval) {
+	di->bat = power_supply_register(&pdev->dev, &di->bat_desc, &psy_cfg);
+	if (IS_ERR(di->bat)) {
 		dev_err(di->dev, "failed to register battery\n");
+		retval = PTR_ERR(di->bat);
 		goto batt_failed;
 	}
 
@@ -574,7 +576,7 @@ static int ds2760_battery_probe(struct platform_device *pdev)
 	goto success;
 
 workqueue_failed:
-	power_supply_unregister(&di->bat);
+	power_supply_unregister(di->bat);
 batt_failed:
 di_alloc_failed:
 success:
@@ -588,7 +590,7 @@ static int ds2760_battery_remove(struct platform_device *pdev)
 	cancel_delayed_work_sync(&di->monitor_work);
 	cancel_delayed_work_sync(&di->set_charged_work);
 	destroy_workqueue(di->monitor_wqueue);
-	power_supply_unregister(&di->bat);
+	power_supply_unregister(di->bat);
 
 	return 0;
 }
@@ -610,7 +612,7 @@ static int ds2760_battery_resume(struct platform_device *pdev)
 	struct ds2760_device_info *di = platform_get_drvdata(pdev);
 
 	di->charge_status = POWER_SUPPLY_STATUS_UNKNOWN;
-	power_supply_changed(&di->bat);
+	power_supply_changed(di->bat);
 
 	mod_delayed_work(di->monitor_wqueue, &di->monitor_work, HZ);
 
diff --git a/drivers/power/ds2780_battery.c b/drivers/power/ds2780_battery.c
index 9f418fa..a7a0427 100644
--- a/drivers/power/ds2780_battery.c
+++ b/drivers/power/ds2780_battery.c
@@ -37,7 +37,8 @@
 
 struct ds2780_device_info {
 	struct device *dev;
-	struct power_supply bat;
+	struct power_supply *bat;
+	struct power_supply_desc bat_desc;
 	struct device *w1_dev;
 };
 
@@ -52,7 +53,7 @@ static const char manufacturer[] = "Maxim/Dallas";
 static inline struct ds2780_device_info *
 to_ds2780_device_info(struct power_supply *psy)
 {
-	return container_of(psy, struct ds2780_device_info, bat);
+	return power_supply_get_drvdata(psy);
 }
 
 static inline struct power_supply *to_power_supply(struct device *dev)
@@ -757,6 +758,7 @@ static const struct attribute_group ds2780_attr_group = {
 
 static int ds2780_battery_probe(struct platform_device *pdev)
 {
+	struct power_supply_config psy_cfg = {};
 	int ret = 0;
 	struct ds2780_device_info *dev_info;
 
@@ -770,25 +772,29 @@ static int ds2780_battery_probe(struct platform_device *pdev)
 
 	dev_info->dev			= &pdev->dev;
 	dev_info->w1_dev		= pdev->dev.parent;
-	dev_info->bat.name		= dev_name(&pdev->dev);
-	dev_info->bat.type		= POWER_SUPPLY_TYPE_BATTERY;
-	dev_info->bat.properties	= ds2780_battery_props;
-	dev_info->bat.num_properties	= ARRAY_SIZE(ds2780_battery_props);
-	dev_info->bat.get_property	= ds2780_battery_get_property;
+	dev_info->bat_desc.name		= dev_name(&pdev->dev);
+	dev_info->bat_desc.type		= POWER_SUPPLY_TYPE_BATTERY;
+	dev_info->bat_desc.properties	= ds2780_battery_props;
+	dev_info->bat_desc.num_properties = ARRAY_SIZE(ds2780_battery_props);
+	dev_info->bat_desc.get_property	= ds2780_battery_get_property;
 
-	ret = power_supply_register(&pdev->dev, &dev_info->bat);
-	if (ret) {
+	psy_cfg.drv_data		= dev_info;
+
+	dev_info->bat = power_supply_register(&pdev->dev, &dev_info->bat_desc,
+					      &psy_cfg);
+	if (IS_ERR(dev_info->bat)) {
 		dev_err(dev_info->dev, "failed to register battery\n");
+		ret = PTR_ERR(dev_info->bat);
 		goto fail;
 	}
 
-	ret = sysfs_create_group(&dev_info->bat.dev->kobj, &ds2780_attr_group);
+	ret = sysfs_create_group(&dev_info->bat->dev.kobj, &ds2780_attr_group);
 	if (ret) {
 		dev_err(dev_info->dev, "failed to create sysfs group\n");
 		goto fail_unregister;
 	}
 
-	ret = sysfs_create_bin_file(&dev_info->bat.dev->kobj,
+	ret = sysfs_create_bin_file(&dev_info->bat->dev.kobj,
 					&ds2780_param_eeprom_bin_attr);
 	if (ret) {
 		dev_err(dev_info->dev,
@@ -796,7 +802,7 @@ static int ds2780_battery_probe(struct platform_device *pdev)
 		goto fail_remove_group;
 	}
 
-	ret = sysfs_create_bin_file(&dev_info->bat.dev->kobj,
+	ret = sysfs_create_bin_file(&dev_info->bat->dev.kobj,
 					&ds2780_user_eeprom_bin_attr);
 	if (ret) {
 		dev_err(dev_info->dev,
@@ -807,12 +813,12 @@ static int ds2780_battery_probe(struct platform_device *pdev)
 	return 0;
 
 fail_remove_bin_file:
-	sysfs_remove_bin_file(&dev_info->bat.dev->kobj,
+	sysfs_remove_bin_file(&dev_info->bat->dev.kobj,
 				&ds2780_param_eeprom_bin_attr);
 fail_remove_group:
-	sysfs_remove_group(&dev_info->bat.dev->kobj, &ds2780_attr_group);
+	sysfs_remove_group(&dev_info->bat->dev.kobj, &ds2780_attr_group);
 fail_unregister:
-	power_supply_unregister(&dev_info->bat);
+	power_supply_unregister(dev_info->bat);
 fail:
 	return ret;
 }
@@ -821,10 +827,13 @@ static int ds2780_battery_remove(struct platform_device *pdev)
 {
 	struct ds2780_device_info *dev_info = platform_get_drvdata(pdev);
 
-	/* remove attributes */
-	sysfs_remove_group(&dev_info->bat.dev->kobj, &ds2780_attr_group);
+	/*
+	 * Remove attributes before unregistering power supply
+	 * because 'bat' will be freed on power_supply_unregister() call.
+	 */
+	sysfs_remove_group(&dev_info->bat->dev.kobj, &ds2780_attr_group);
 
-	power_supply_unregister(&dev_info->bat);
+	power_supply_unregister(dev_info->bat);
 
 	return 0;
 }
diff --git a/drivers/power/ds2781_battery.c b/drivers/power/ds2781_battery.c
index 0a5acc6..56d583d 100644
--- a/drivers/power/ds2781_battery.c
+++ b/drivers/power/ds2781_battery.c
@@ -35,7 +35,8 @@
 
 struct ds2781_device_info {
 	struct device *dev;
-	struct power_supply bat;
+	struct power_supply *bat;
+	struct power_supply_desc bat_desc;
 	struct device *w1_dev;
 };
 
@@ -50,7 +51,7 @@ static const char manufacturer[] = "Maxim/Dallas";
 static inline struct ds2781_device_info *
 to_ds2781_device_info(struct power_supply *psy)
 {
-	return container_of(psy, struct ds2781_device_info, bat);
+	return power_supply_get_drvdata(psy);
 }
 
 static inline struct power_supply *to_power_supply(struct device *dev)
@@ -328,7 +329,7 @@ static int ds2781_get_status(struct ds2781_device_info *dev_info, int *status)
 	if (ret < 0)
 		return ret;
 
-	if (power_supply_am_i_supplied(&dev_info->bat)) {
+	if (power_supply_am_i_supplied(dev_info->bat)) {
 		if (capacity == 100)
 			*status = POWER_SUPPLY_STATUS_FULL;
 		else if (current_uA > 50000)
@@ -752,6 +753,7 @@ static const struct attribute_group ds2781_attr_group = {
 
 static int ds2781_battery_probe(struct platform_device *pdev)
 {
+	struct power_supply_config psy_cfg = {};
 	int ret = 0;
 	struct ds2781_device_info *dev_info;
 
@@ -763,25 +765,29 @@ static int ds2781_battery_probe(struct platform_device *pdev)
 
 	dev_info->dev			= &pdev->dev;
 	dev_info->w1_dev		= pdev->dev.parent;
-	dev_info->bat.name		= dev_name(&pdev->dev);
-	dev_info->bat.type		= POWER_SUPPLY_TYPE_BATTERY;
-	dev_info->bat.properties	= ds2781_battery_props;
-	dev_info->bat.num_properties	= ARRAY_SIZE(ds2781_battery_props);
-	dev_info->bat.get_property	= ds2781_battery_get_property;
+	dev_info->bat_desc.name		= dev_name(&pdev->dev);
+	dev_info->bat_desc.type		= POWER_SUPPLY_TYPE_BATTERY;
+	dev_info->bat_desc.properties	= ds2781_battery_props;
+	dev_info->bat_desc.num_properties = ARRAY_SIZE(ds2781_battery_props);
+	dev_info->bat_desc.get_property	= ds2781_battery_get_property;
 
-	ret = power_supply_register(&pdev->dev, &dev_info->bat);
-	if (ret) {
+	psy_cfg.drv_data		= dev_info;
+
+	dev_info->bat = power_supply_register(&pdev->dev, &dev_info->bat_desc,
+						&psy_cfg);
+	if (IS_ERR(dev_info->bat)) {
 		dev_err(dev_info->dev, "failed to register battery\n");
+		ret = PTR_ERR(dev_info->bat);
 		goto fail;
 	}
 
-	ret = sysfs_create_group(&dev_info->bat.dev->kobj, &ds2781_attr_group);
+	ret = sysfs_create_group(&dev_info->bat->dev.kobj, &ds2781_attr_group);
 	if (ret) {
 		dev_err(dev_info->dev, "failed to create sysfs group\n");
 		goto fail_unregister;
 	}
 
-	ret = sysfs_create_bin_file(&dev_info->bat.dev->kobj,
+	ret = sysfs_create_bin_file(&dev_info->bat->dev.kobj,
 					&ds2781_param_eeprom_bin_attr);
 	if (ret) {
 		dev_err(dev_info->dev,
@@ -789,7 +795,7 @@ static int ds2781_battery_probe(struct platform_device *pdev)
 		goto fail_remove_group;
 	}
 
-	ret = sysfs_create_bin_file(&dev_info->bat.dev->kobj,
+	ret = sysfs_create_bin_file(&dev_info->bat->dev.kobj,
 					&ds2781_user_eeprom_bin_attr);
 	if (ret) {
 		dev_err(dev_info->dev,
@@ -800,12 +806,12 @@ static int ds2781_battery_probe(struct platform_device *pdev)
 	return 0;
 
 fail_remove_bin_file:
-	sysfs_remove_bin_file(&dev_info->bat.dev->kobj,
+	sysfs_remove_bin_file(&dev_info->bat->dev.kobj,
 				&ds2781_param_eeprom_bin_attr);
 fail_remove_group:
-	sysfs_remove_group(&dev_info->bat.dev->kobj, &ds2781_attr_group);
+	sysfs_remove_group(&dev_info->bat->dev.kobj, &ds2781_attr_group);
 fail_unregister:
-	power_supply_unregister(&dev_info->bat);
+	power_supply_unregister(dev_info->bat);
 fail:
 	return ret;
 }
@@ -814,10 +820,13 @@ static int ds2781_battery_remove(struct platform_device *pdev)
 {
 	struct ds2781_device_info *dev_info = platform_get_drvdata(pdev);
 
-	/* remove attributes */
-	sysfs_remove_group(&dev_info->bat.dev->kobj, &ds2781_attr_group);
+	/*
+	 * Remove attributes before unregistering power supply
+	 * because 'bat' will be freed on power_supply_unregister() call.
+	 */
+	sysfs_remove_group(&dev_info->bat->dev.kobj, &ds2781_attr_group);
 
-	power_supply_unregister(&dev_info->bat);
+	power_supply_unregister(dev_info->bat);
 
 	return 0;
 }
diff --git a/drivers/power/ds2782_battery.c b/drivers/power/ds2782_battery.c
index 3969488..ed4d756 100644
--- a/drivers/power/ds2782_battery.c
+++ b/drivers/power/ds2782_battery.c
@@ -53,11 +53,12 @@ struct ds278x_battery_ops {
 	int (*get_battery_capacity)(struct ds278x_info *info, int *capacity);
 };
 
-#define to_ds278x_info(x) container_of(x, struct ds278x_info, battery)
+#define to_ds278x_info(x) power_supply_get_drvdata(x)
 
 struct ds278x_info {
 	struct i2c_client	*client;
-	struct power_supply	battery;
+	struct power_supply	*battery;
+	struct power_supply_desc	battery_desc;
 	struct ds278x_battery_ops  *ops;
 	struct delayed_work	bat_work;
 	int			id;
@@ -285,7 +286,7 @@ static void ds278x_bat_update(struct ds278x_info *info)
 	ds278x_get_status(info, &info->status);
 
 	if ((old_status != info->status) || (old_capacity != info->capacity))
-		power_supply_changed(&info->battery);
+		power_supply_changed(info->battery);
 }
 
 static void ds278x_bat_work(struct work_struct *work)
@@ -306,7 +307,7 @@ static enum power_supply_property ds278x_battery_props[] = {
 	POWER_SUPPLY_PROP_TEMP,
 };
 
-static void ds278x_power_supply_init(struct power_supply *battery)
+static void ds278x_power_supply_init(struct power_supply_desc *battery)
 {
 	battery->type			= POWER_SUPPLY_TYPE_BATTERY;
 	battery->properties		= ds278x_battery_props;
@@ -319,8 +320,8 @@ static int ds278x_battery_remove(struct i2c_client *client)
 {
 	struct ds278x_info *info = i2c_get_clientdata(client);
 
-	power_supply_unregister(&info->battery);
-	kfree(info->battery.name);
+	power_supply_unregister(info->battery);
+	kfree(info->battery_desc.name);
 
 	mutex_lock(&battery_lock);
 	idr_remove(&battery_id, info->id);
@@ -377,6 +378,7 @@ static int ds278x_battery_probe(struct i2c_client *client,
 				const struct i2c_device_id *id)
 {
 	struct ds278x_platform_data *pdata = client->dev.platform_data;
+	struct power_supply_config psy_cfg = {};
 	struct ds278x_info *info;
 	int ret;
 	int num;
@@ -404,8 +406,9 @@ static int ds278x_battery_probe(struct i2c_client *client,
 		goto fail_info;
 	}
 
-	info->battery.name = kasprintf(GFP_KERNEL, "%s-%d", client->name, num);
-	if (!info->battery.name) {
+	info->battery_desc.name = kasprintf(GFP_KERNEL, "%s-%d",
+					    client->name, num);
+	if (!info->battery_desc.name) {
 		ret = -ENOMEM;
 		goto fail_name;
 	}
@@ -417,16 +420,19 @@ static int ds278x_battery_probe(struct i2c_client *client,
 	info->client = client;
 	info->id = num;
 	info->ops  = &ds278x_ops[id->driver_data];
-	ds278x_power_supply_init(&info->battery);
+	ds278x_power_supply_init(&info->battery_desc);
+	psy_cfg.drv_data = info;
 
 	info->capacity = 100;
 	info->status = POWER_SUPPLY_STATUS_FULL;
 
 	INIT_DELAYED_WORK(&info->bat_work, ds278x_bat_work);
 
-	ret = power_supply_register(&client->dev, &info->battery);
-	if (ret) {
+	info->battery = power_supply_register(&client->dev,
+					      &info->battery_desc, &psy_cfg);
+	if (IS_ERR(info->battery)) {
 		dev_err(&client->dev, "failed to register battery\n");
+		ret = PTR_ERR(info->battery);
 		goto fail_register;
 	} else {
 		schedule_delayed_work(&info->bat_work, DS278x_DELAY);
@@ -435,7 +441,7 @@ static int ds278x_battery_probe(struct i2c_client *client,
 	return 0;
 
 fail_register:
-	kfree(info->battery.name);
+	kfree(info->battery_desc.name);
 fail_name:
 	kfree(info);
 fail_info:
diff --git a/drivers/power/generic-adc-battery.c b/drivers/power/generic-adc-battery.c
index d72733e..fedc581 100644
--- a/drivers/power/generic-adc-battery.c
+++ b/drivers/power/generic-adc-battery.c
@@ -44,7 +44,8 @@ static const char *const gab_chan_name[] = {
 };
 
 struct gab {
-	struct power_supply	psy;
+	struct power_supply		*psy;
+	struct power_supply_desc	psy_desc;
 	struct iio_channel	*channel[GAB_MAX_CHAN_TYPE];
 	struct gab_platform_data	*pdata;
 	struct delayed_work bat_work;
@@ -55,7 +56,7 @@ struct gab {
 
 static struct gab *to_generic_bat(struct power_supply *psy)
 {
-	return container_of(psy, struct gab, psy);
+	return power_supply_get_drvdata(psy);
 }
 
 static void gab_ext_power_changed(struct power_supply *psy)
@@ -151,7 +152,7 @@ static int gab_get_property(struct power_supply *psy,
 
 	adc_bat = to_generic_bat(psy);
 	if (!adc_bat) {
-		dev_err(psy->dev, "no battery infos ?!\n");
+		dev_err(&psy->dev, "no battery infos ?!\n");
 		return -EINVAL;
 	}
 	pdata = adc_bat->pdata;
@@ -159,7 +160,7 @@ static int gab_get_property(struct power_supply *psy,
 
 	switch (psp) {
 	case POWER_SUPPLY_PROP_STATUS:
-		gab_get_status(adc_bat);
+		val->intval = gab_get_status(adc_bat);
 		break;
 	case POWER_SUPPLY_PROP_CHARGE_EMPTY_DESIGN:
 		val->intval = 0;
@@ -210,7 +211,7 @@ static void gab_work(struct work_struct *work)
 	pdata = adc_bat->pdata;
 	status = adc_bat->status;
 
-	is_plugged = power_supply_am_i_supplied(&adc_bat->psy);
+	is_plugged = power_supply_am_i_supplied(adc_bat->psy);
 	adc_bat->cable_plugged = is_plugged;
 
 	if (!is_plugged)
@@ -221,7 +222,7 @@ static void gab_work(struct work_struct *work)
 		adc_bat->status = POWER_SUPPLY_STATUS_CHARGING;
 
 	if (status != adc_bat->status)
-		power_supply_changed(&adc_bat->psy);
+		power_supply_changed(adc_bat->psy);
 }
 
 static irqreturn_t gab_charged(int irq, void *dev_id)
@@ -239,7 +240,8 @@ static irqreturn_t gab_charged(int irq, void *dev_id)
 static int gab_probe(struct platform_device *pdev)
 {
 	struct gab *adc_bat;
-	struct power_supply *psy;
+	struct power_supply_desc *psy_desc;
+	struct power_supply_config psy_cfg = {};
 	struct gab_platform_data *pdata = pdev->dev.platform_data;
 	enum power_supply_property *properties;
 	int ret = 0;
@@ -252,32 +254,34 @@ static int gab_probe(struct platform_device *pdev)
 		return -ENOMEM;
 	}
 
-	psy = &adc_bat->psy;
-	psy->name = pdata->battery_info.name;
+	psy_cfg.drv_data = adc_bat;
+	psy_desc = &adc_bat->psy_desc;
+	psy_desc->name = pdata->battery_info.name;
 
 	/* bootup default values for the battery */
 	adc_bat->cable_plugged = false;
 	adc_bat->status = POWER_SUPPLY_STATUS_DISCHARGING;
-	psy->type = POWER_SUPPLY_TYPE_BATTERY;
-	psy->get_property = gab_get_property;
-	psy->external_power_changed = gab_ext_power_changed;
+	psy_desc->type = POWER_SUPPLY_TYPE_BATTERY;
+	psy_desc->get_property = gab_get_property;
+	psy_desc->external_power_changed = gab_ext_power_changed;
 	adc_bat->pdata = pdata;
 
 	/*
 	 * copying the static properties and allocating extra memory for holding
 	 * the extra configurable properties received from platform data.
 	 */
-	psy->properties = kcalloc(ARRAY_SIZE(gab_props) +
+	psy_desc->properties = kcalloc(ARRAY_SIZE(gab_props) +
 					ARRAY_SIZE(gab_chan_name),
-					sizeof(*psy->properties), GFP_KERNEL);
-	if (!psy->properties) {
+					sizeof(*psy_desc->properties),
+					GFP_KERNEL);
+	if (!psy_desc->properties) {
 		ret = -ENOMEM;
 		goto first_mem_fail;
 	}
 
-	memcpy(psy->properties, gab_props, sizeof(gab_props));
+	memcpy(psy_desc->properties, gab_props, sizeof(gab_props));
 	properties = (enum power_supply_property *)
-				((char *)psy->properties + sizeof(gab_props));
+			((char *)psy_desc->properties + sizeof(gab_props));
 
 	/*
 	 * getting channel from iio and copying the battery properties
@@ -291,7 +295,7 @@ static int gab_probe(struct platform_device *pdev)
 			adc_bat->channel[chan] = NULL;
 		} else {
 			/* copying properties for supported channels only */
-			memcpy(properties + sizeof(*(psy->properties)) * index,
+			memcpy(properties + sizeof(*(psy_desc->properties)) * index,
 					&gab_dyn_props[chan],
 					sizeof(gab_dyn_props[chan]));
 			index++;
@@ -310,11 +314,13 @@ static int gab_probe(struct platform_device *pdev)
 	 * as come channels may be not be supported by the device.So
 	 * we need to take care of that.
 	 */
-	psy->num_properties = ARRAY_SIZE(gab_props) + index;
+	psy_desc->num_properties = ARRAY_SIZE(gab_props) + index;
 
-	ret = power_supply_register(&pdev->dev, psy);
-	if (ret)
+	adc_bat->psy = power_supply_register(&pdev->dev, psy_desc, &psy_cfg);
+	if (IS_ERR(adc_bat->psy)) {
+		ret = PTR_ERR(adc_bat->psy);
 		goto err_reg_fail;
+	}
 
 	INIT_DELAYED_WORK(&adc_bat->bat_work, gab_work);
 
@@ -342,14 +348,14 @@ static int gab_probe(struct platform_device *pdev)
 err_gpio:
 	gpio_free(pdata->gpio_charge_finished);
 gpio_req_fail:
-	power_supply_unregister(psy);
+	power_supply_unregister(adc_bat->psy);
 err_reg_fail:
 	for (chan = 0; chan < ARRAY_SIZE(gab_chan_name); chan++) {
 		if (adc_bat->channel[chan])
 			iio_channel_release(adc_bat->channel[chan]);
 	}
 second_mem_fail:
-	kfree(psy->properties);
+	kfree(psy_desc->properties);
 first_mem_fail:
 	return ret;
 }
@@ -360,7 +366,7 @@ static int gab_remove(struct platform_device *pdev)
 	struct gab *adc_bat = platform_get_drvdata(pdev);
 	struct gab_platform_data *pdata = adc_bat->pdata;
 
-	power_supply_unregister(&adc_bat->psy);
+	power_supply_unregister(adc_bat->psy);
 
 	if (gpio_is_valid(pdata->gpio_charge_finished)) {
 		free_irq(gpio_to_irq(pdata->gpio_charge_finished), adc_bat);
@@ -372,7 +378,7 @@ static int gab_remove(struct platform_device *pdev)
 			iio_channel_release(adc_bat->channel[chan]);
 	}
 
-	kfree(adc_bat->psy.properties);
+	kfree(adc_bat->psy_desc.properties);
 	cancel_delayed_work(&adc_bat->bat_work);
 	return 0;
 }
diff --git a/drivers/power/goldfish_battery.c b/drivers/power/goldfish_battery.c
index 29eba88..a50bb98 100644
--- a/drivers/power/goldfish_battery.c
+++ b/drivers/power/goldfish_battery.c
@@ -30,8 +30,8 @@ struct goldfish_battery_data {
 	int irq;
 	spinlock_t lock;
 
-	struct power_supply battery;
-	struct power_supply ac;
+	struct power_supply *battery;
+	struct power_supply *ac;
 };
 
 #define GOLDFISH_BATTERY_READ(data, addr) \
@@ -67,8 +67,7 @@ static int goldfish_ac_get_property(struct power_supply *psy,
 			enum power_supply_property psp,
 			union power_supply_propval *val)
 {
-	struct goldfish_battery_data *data = container_of(psy,
-		struct goldfish_battery_data, ac);
+	struct goldfish_battery_data *data = power_supply_get_drvdata(psy);
 	int ret = 0;
 
 	switch (psp) {
@@ -86,8 +85,7 @@ static int goldfish_battery_get_property(struct power_supply *psy,
 				 enum power_supply_property psp,
 				 union power_supply_propval *val)
 {
-	struct goldfish_battery_data *data = container_of(psy,
-		struct goldfish_battery_data, battery);
+	struct goldfish_battery_data *data = power_supply_get_drvdata(psy);
 	int ret = 0;
 
 	switch (psp) {
@@ -139,20 +137,36 @@ static irqreturn_t goldfish_battery_interrupt(int irq, void *dev_id)
 	status &= BATTERY_INT_MASK;
 
 	if (status & BATTERY_STATUS_CHANGED)
-		power_supply_changed(&data->battery);
+		power_supply_changed(data->battery);
 	if (status & AC_STATUS_CHANGED)
-		power_supply_changed(&data->ac);
+		power_supply_changed(data->ac);
 
 	spin_unlock_irqrestore(&data->lock, irq_flags);
 	return status ? IRQ_HANDLED : IRQ_NONE;
 }
 
+static const struct power_supply_desc battery_desc = {
+	.properties	= goldfish_battery_props,
+	.num_properties	= ARRAY_SIZE(goldfish_battery_props),
+	.get_property	= goldfish_battery_get_property,
+	.name		= "battery",
+	.type		= POWER_SUPPLY_TYPE_BATTERY,
+};
+
+static const struct power_supply_desc ac_desc = {
+	.properties	= goldfish_ac_props,
+	.num_properties	= ARRAY_SIZE(goldfish_ac_props),
+	.get_property	= goldfish_ac_get_property,
+	.name		= "ac",
+	.type		= POWER_SUPPLY_TYPE_MAINS,
+};
 
 static int goldfish_battery_probe(struct platform_device *pdev)
 {
 	int ret;
 	struct resource *r;
 	struct goldfish_battery_data *data;
+	struct power_supply_config psy_cfg = {};
 
 	data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
 	if (data == NULL)
@@ -160,18 +174,6 @@ static int goldfish_battery_probe(struct platform_device *pdev)
 
 	spin_lock_init(&data->lock);
 
-	data->battery.properties = goldfish_battery_props;
-	data->battery.num_properties = ARRAY_SIZE(goldfish_battery_props);
-	data->battery.get_property = goldfish_battery_get_property;
-	data->battery.name = "battery";
-	data->battery.type = POWER_SUPPLY_TYPE_BATTERY;
-
-	data->ac.properties = goldfish_ac_props;
-	data->ac.num_properties = ARRAY_SIZE(goldfish_ac_props);
-	data->ac.get_property = goldfish_ac_get_property;
-	data->ac.name = "ac";
-	data->ac.type = POWER_SUPPLY_TYPE_MAINS;
-
 	r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	if (r == NULL) {
 		dev_err(&pdev->dev, "platform_get_resource failed\n");
@@ -195,14 +197,17 @@ static int goldfish_battery_probe(struct platform_device *pdev)
 	if (ret)
 		return ret;
 
-	ret = power_supply_register(&pdev->dev, &data->ac);
-	if (ret)
-		return ret;
+	psy_cfg.drv_data = data;
 
-	ret = power_supply_register(&pdev->dev, &data->battery);
-	if (ret) {
-		power_supply_unregister(&data->ac);
-		return ret;
+	data->ac = power_supply_register(&pdev->dev, &ac_desc, &psy_cfg);
+	if (IS_ERR(data->ac))
+		return PTR_ERR(data->ac);
+
+	data->battery = power_supply_register(&pdev->dev, &battery_desc,
+						&psy_cfg);
+	if (IS_ERR(data->battery)) {
+		power_supply_unregister(data->ac);
+		return PTR_ERR(data->battery);
 	}
 
 	platform_set_drvdata(pdev, data);
@@ -216,8 +221,8 @@ static int goldfish_battery_remove(struct platform_device *pdev)
 {
 	struct goldfish_battery_data *data = platform_get_drvdata(pdev);
 
-	power_supply_unregister(&data->battery);
-	power_supply_unregister(&data->ac);
+	power_supply_unregister(data->battery);
+	power_supply_unregister(data->ac);
 	battery_data = NULL;
 	return 0;
 }
diff --git a/drivers/power/gpio-charger.c b/drivers/power/gpio-charger.c
index b7424c8..c5869b1 100644
--- a/drivers/power/gpio-charger.c
+++ b/drivers/power/gpio-charger.c
@@ -32,7 +32,8 @@ struct gpio_charger {
 	unsigned int irq;
 	bool wakeup_enabled;
 
-	struct power_supply charger;
+	struct power_supply *charger;
+	struct power_supply_desc charger_desc;
 };
 
 static irqreturn_t gpio_charger_irq(int irq, void *devid)
@@ -46,7 +47,7 @@ static irqreturn_t gpio_charger_irq(int irq, void *devid)
 
 static inline struct gpio_charger *psy_to_gpio_charger(struct power_supply *psy)
 {
-	return container_of(psy, struct gpio_charger, charger);
+	return power_supply_get_drvdata(psy);
 }
 
 static int gpio_charger_get_property(struct power_supply *psy,
@@ -127,8 +128,9 @@ struct gpio_charger_platform_data *gpio_charger_parse_dt(struct device *dev)
 static int gpio_charger_probe(struct platform_device *pdev)
 {
 	const struct gpio_charger_platform_data *pdata = pdev->dev.platform_data;
+	struct power_supply_config psy_cfg = {};
 	struct gpio_charger *gpio_charger;
-	struct power_supply *charger;
+	struct power_supply_desc *charger_desc;
 	int ret;
 	int irq;
 
@@ -154,16 +156,18 @@ static int gpio_charger_probe(struct platform_device *pdev)
 		return -ENOMEM;
 	}
 
-	charger = &gpio_charger->charger;
+	charger_desc = &gpio_charger->charger_desc;
+
+	charger_desc->name = pdata->name ? pdata->name : "gpio-charger";
+	charger_desc->type = pdata->type;
+	charger_desc->properties = gpio_charger_properties;
+	charger_desc->num_properties = ARRAY_SIZE(gpio_charger_properties);
+	charger_desc->get_property = gpio_charger_get_property;
 
-	charger->name = pdata->name ? pdata->name : "gpio-charger";
-	charger->type = pdata->type;
-	charger->properties = gpio_charger_properties;
-	charger->num_properties = ARRAY_SIZE(gpio_charger_properties);
-	charger->get_property = gpio_charger_get_property;
-	charger->supplied_to = pdata->supplied_to;
-	charger->num_supplicants = pdata->num_supplicants;
-	charger->of_node = pdev->dev.of_node;
+	psy_cfg.supplied_to = pdata->supplied_to;
+	psy_cfg.num_supplicants = pdata->num_supplicants;
+	psy_cfg.of_node = pdev->dev.of_node;
+	psy_cfg.drv_data = gpio_charger;
 
 	ret = gpio_request(pdata->gpio, dev_name(&pdev->dev));
 	if (ret) {
@@ -178,8 +182,10 @@ static int gpio_charger_probe(struct platform_device *pdev)
 
 	gpio_charger->pdata = pdata;
 
-	ret = power_supply_register(&pdev->dev, charger);
-	if (ret < 0) {
+	gpio_charger->charger = power_supply_register(&pdev->dev,
+						      charger_desc, &psy_cfg);
+	if (IS_ERR(gpio_charger->charger)) {
+		ret = PTR_ERR(gpio_charger->charger);
 		dev_err(&pdev->dev, "Failed to register power supply: %d\n",
 			ret);
 		goto err_gpio_free;
@@ -189,7 +195,7 @@ static int gpio_charger_probe(struct platform_device *pdev)
 	if (irq > 0) {
 		ret = request_any_context_irq(irq, gpio_charger_irq,
 				IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
-				dev_name(&pdev->dev), charger);
+				dev_name(&pdev->dev), gpio_charger->charger);
 		if (ret < 0)
 			dev_warn(&pdev->dev, "Failed to request irq: %d\n", ret);
 		else
@@ -213,9 +219,9 @@ static int gpio_charger_remove(struct platform_device *pdev)
 	struct gpio_charger *gpio_charger = platform_get_drvdata(pdev);
 
 	if (gpio_charger->irq)
-		free_irq(gpio_charger->irq, &gpio_charger->charger);
+		free_irq(gpio_charger->irq, gpio_charger->charger);
 
-	power_supply_unregister(&gpio_charger->charger);
+	power_supply_unregister(gpio_charger->charger);
 
 	gpio_free(gpio_charger->pdata->gpio);
 
@@ -241,7 +247,7 @@ static int gpio_charger_resume(struct device *dev)
 
 	if (device_may_wakeup(dev) && gpio_charger->wakeup_enabled)
 		disable_irq_wake(gpio_charger->irq);
-	power_supply_changed(&gpio_charger->charger);
+	power_supply_changed(gpio_charger->charger);
 
 	return 0;
 }
diff --git a/drivers/power/intel_mid_battery.c b/drivers/power/intel_mid_battery.c
index de3f39e..9fa4acc 100644
--- a/drivers/power/intel_mid_battery.c
+++ b/drivers/power/intel_mid_battery.c
@@ -107,8 +107,8 @@ struct pmic_power_module_info {
 	unsigned int batt_prev_charge_full;	/* in mAS */
 	unsigned int batt_charge_rate;		/* in units per second */
 
-	struct power_supply usb;
-	struct power_supply batt;
+	struct power_supply *usb;
+	struct power_supply *batt;
 	int irq;				/* GPE_ID or IRQ# */
 	struct workqueue_struct *monitor_wqueue;
 	struct delayed_work monitor_battery;
@@ -404,8 +404,7 @@ static int pmic_usb_get_property(struct power_supply *psy,
 				enum power_supply_property psp,
 				union power_supply_propval *val)
 {
-	struct pmic_power_module_info *pbi = container_of(psy,
-				struct pmic_power_module_info, usb);
+	struct pmic_power_module_info *pbi = power_supply_get_drvdata(psy);
 
 	/* update pmic_power_module_info members */
 	pmic_battery_read_status(pbi);
@@ -444,8 +443,7 @@ static int pmic_battery_get_property(struct power_supply *psy,
 				enum power_supply_property psp,
 				union power_supply_propval *val)
 {
-	struct pmic_power_module_info *pbi = container_of(psy,
-				struct pmic_power_module_info, batt);
+	struct pmic_power_module_info *pbi = power_supply_get_drvdata(psy);
 
 	/* update pmic_power_module_info members */
 	pmic_battery_read_status(pbi);
@@ -640,6 +638,25 @@ static void pmic_battery_handle_intrpt(struct work_struct *work)
 			__func__);
 }
 
+/*
+ * Description of power supplies
+ */
+static const struct power_supply_desc pmic_usb_desc = {
+	.name		= "pmic-usb",
+	.type		= POWER_SUPPLY_TYPE_USB,
+	.properties	= pmic_usb_props,
+	.num_properties	= ARRAY_SIZE(pmic_usb_props),
+	.get_property	= pmic_usb_get_property,
+};
+
+static const struct power_supply_desc pmic_batt_desc = {
+	.name		= "pmic-batt",
+	.type		= POWER_SUPPLY_TYPE_BATTERY,
+	.properties	= pmic_battery_props,
+	.num_properties	= ARRAY_SIZE(pmic_battery_props),
+	.get_property	= pmic_battery_get_property,
+};
+
 /**
  * pmic_battery_probe - pmic battery initialize
  * @irq: pmic battery device irq
@@ -653,6 +670,7 @@ static int probe(int irq, struct device *dev)
 {
 	int retval = 0;
 	struct pmic_power_module_info *pbi;
+	struct power_supply_config psy_cfg = {};
 
 	dev_dbg(dev, "pmic-battery: found pmic battery device\n");
 
@@ -666,6 +684,7 @@ static int probe(int irq, struct device *dev)
 	pbi->dev = dev;
 	pbi->irq = irq;
 	dev_set_drvdata(dev, pbi);
+	psy_cfg.drv_data = pbi;
 
 	/* initialize all required framework before enabling interrupts */
 	INIT_WORK(&pbi->handler, pmic_battery_handle_intrpt);
@@ -687,16 +706,12 @@ static int probe(int irq, struct device *dev)
 	}
 
 	/* register pmic-batt with power supply subsystem */
-	pbi->batt.name = "pmic-batt";
-	pbi->batt.type = POWER_SUPPLY_TYPE_BATTERY;
-	pbi->batt.properties = pmic_battery_props;
-	pbi->batt.num_properties = ARRAY_SIZE(pmic_battery_props);
-	pbi->batt.get_property = pmic_battery_get_property;
-	retval = power_supply_register(dev, &pbi->batt);
-	if (retval) {
+	pbi->batt = power_supply_register(dev, &pmic_usb_desc, &psy_cfg);
+	if (IS_ERR(pbi->batt)) {
 		dev_err(dev,
 			"%s(): failed to register pmic battery device with power supply subsystem\n",
 				__func__);
+		retval = PTR_ERR(pbi->batt);
 		goto power_reg_failed;
 	}
 
@@ -707,16 +722,12 @@ static int probe(int irq, struct device *dev)
 	queue_delayed_work(pbi->monitor_wqueue, &pbi->monitor_battery, HZ * 1);
 
 	/* register pmic-usb with power supply subsystem */
-	pbi->usb.name = "pmic-usb";
-	pbi->usb.type = POWER_SUPPLY_TYPE_USB;
-	pbi->usb.properties = pmic_usb_props;
-	pbi->usb.num_properties = ARRAY_SIZE(pmic_usb_props);
-	pbi->usb.get_property = pmic_usb_get_property;
-	retval = power_supply_register(dev, &pbi->usb);
-	if (retval) {
+	pbi->usb = power_supply_register(dev, &pmic_batt_desc, &psy_cfg);
+	if (IS_ERR(pbi->usb)) {
 		dev_err(dev,
 			"%s(): failed to register pmic usb device with power supply subsystem\n",
 				__func__);
+		retval = PTR_ERR(pbi->usb);
 		goto power_reg_failed_1;
 	}
 
@@ -728,7 +739,7 @@ static int probe(int irq, struct device *dev)
 	return retval;
 
 power_reg_failed_1:
-	power_supply_unregister(&pbi->batt);
+	power_supply_unregister(pbi->batt);
 power_reg_failed:
 	cancel_delayed_work_sync(&pbi->monitor_battery);
 requestirq_failed:
@@ -762,8 +773,8 @@ static int platform_pmic_battery_remove(struct platform_device *pdev)
 	cancel_delayed_work_sync(&pbi->monitor_battery);
 	destroy_workqueue(pbi->monitor_wqueue);
 
-	power_supply_unregister(&pbi->usb);
-	power_supply_unregister(&pbi->batt);
+	power_supply_unregister(pbi->usb);
+	power_supply_unregister(pbi->batt);
 
 	cancel_work_sync(&pbi->handler);
 	kfree(pbi);
diff --git a/drivers/power/ipaq_micro_battery.c b/drivers/power/ipaq_micro_battery.c
index 9d69460..f03014e 100644
--- a/drivers/power/ipaq_micro_battery.c
+++ b/drivers/power/ipaq_micro_battery.c
@@ -93,7 +93,7 @@ static void micro_battery_work(struct work_struct *work)
 
 static int get_capacity(struct power_supply *b)
 {
-	struct micro_battery *mb = dev_get_drvdata(b->dev->parent);
+	struct micro_battery *mb = dev_get_drvdata(b->dev.parent);
 
 	switch (mb->flag & 0x07) {
 	case MICRO_BATT_STATUS_HIGH:
@@ -113,7 +113,7 @@ static int get_capacity(struct power_supply *b)
 
 static int get_status(struct power_supply *b)
 {
-	struct micro_battery *mb = dev_get_drvdata(b->dev->parent);
+	struct micro_battery *mb = dev_get_drvdata(b->dev.parent);
 
 	if (mb->flag == MICRO_BATT_STATUS_UNKNOWN)
 		return POWER_SUPPLY_STATUS_UNKNOWN;
@@ -132,7 +132,7 @@ static int micro_batt_get_property(struct power_supply *b,
 					enum power_supply_property psp,
 					union power_supply_propval *val)
 {
-	struct micro_battery *mb = dev_get_drvdata(b->dev->parent);
+	struct micro_battery *mb = dev_get_drvdata(b->dev.parent);
 
 	switch (psp) {
 	case POWER_SUPPLY_PROP_TECHNOLOGY:
@@ -180,7 +180,7 @@ static int micro_ac_get_property(struct power_supply *b,
 				 enum power_supply_property psp,
 				 union power_supply_propval *val)
 {
-	struct micro_battery *mb = dev_get_drvdata(b->dev->parent);
+	struct micro_battery *mb = dev_get_drvdata(b->dev.parent);
 
 	switch (psp) {
 	case POWER_SUPPLY_PROP_ONLINE:
@@ -202,7 +202,7 @@ static enum power_supply_property micro_batt_power_props[] = {
 	POWER_SUPPLY_PROP_VOLTAGE_NOW,
 };
 
-static struct power_supply micro_batt_power = {
+static const struct power_supply_desc micro_batt_power_desc = {
 	.name			= "main-battery",
 	.type			= POWER_SUPPLY_TYPE_BATTERY,
 	.properties		= micro_batt_power_props,
@@ -215,7 +215,7 @@ static enum power_supply_property micro_ac_power_props[] = {
 	POWER_SUPPLY_PROP_ONLINE,
 };
 
-static struct power_supply micro_ac_power = {
+static const struct power_supply_desc micro_ac_power_desc = {
 	.name			= "ac",
 	.type			= POWER_SUPPLY_TYPE_MAINS,
 	.properties		= micro_ac_power_props,
@@ -223,9 +223,12 @@ static struct power_supply micro_ac_power = {
 	.get_property		= micro_ac_get_property,
 };
 
+static struct power_supply *micro_batt_power, *micro_ac_power;
+
 static int micro_batt_probe(struct platform_device *pdev)
 {
 	struct micro_battery *mb;
+	int ret;
 
 	mb = devm_kzalloc(&pdev->dev, sizeof(*mb), GFP_KERNEL);
 	if (!mb)
@@ -233,14 +236,36 @@ static int micro_batt_probe(struct platform_device *pdev)
 
 	mb->micro = dev_get_drvdata(pdev->dev.parent);
 	mb->wq = create_singlethread_workqueue("ipaq-battery-wq");
+	if (!mb->wq)
+		return -ENOMEM;
+
 	INIT_DELAYED_WORK(&mb->update, micro_battery_work);
 	platform_set_drvdata(pdev, mb);
 	queue_delayed_work(mb->wq, &mb->update, 1);
-	power_supply_register(&pdev->dev, &micro_batt_power);
-	power_supply_register(&pdev->dev, &micro_ac_power);
+
+	micro_batt_power = power_supply_register(&pdev->dev,
+						 &micro_batt_power_desc, NULL);
+	if (IS_ERR(micro_batt_power)) {
+		ret = PTR_ERR(micro_batt_power);
+		goto batt_err;
+	}
+
+	micro_ac_power = power_supply_register(&pdev->dev,
+					       &micro_ac_power_desc, NULL);
+	if (IS_ERR(micro_ac_power)) {
+		ret = PTR_ERR(micro_ac_power);
+		goto ac_err;
+	}
 
 	dev_info(&pdev->dev, "iPAQ micro battery driver\n");
 	return 0;
+
+ac_err:
+	power_supply_unregister(micro_ac_power);
+batt_err:
+	cancel_delayed_work_sync(&mb->update);
+	destroy_workqueue(mb->wq);
+	return ret;
 }
 
 static int micro_batt_remove(struct platform_device *pdev)
@@ -248,9 +273,10 @@ static int micro_batt_remove(struct platform_device *pdev)
 {
 	struct micro_battery *mb = platform_get_drvdata(pdev);
 
-	power_supply_unregister(&micro_ac_power);
-	power_supply_unregister(&micro_batt_power);
+	power_supply_unregister(micro_ac_power);
+	power_supply_unregister(micro_batt_power);
 	cancel_delayed_work_sync(&mb->update);
+	destroy_workqueue(mb->wq);
 
 	return 0;
 }
diff --git a/drivers/power/isp1704_charger.c b/drivers/power/isp1704_charger.c
index 0b4cf9d..f2a7d97 100644
--- a/drivers/power/isp1704_charger.c
+++ b/drivers/power/isp1704_charger.c
@@ -57,11 +57,12 @@ static u16 isp170x_id[] = {
 };
 
 struct isp1704_charger {
-	struct device		*dev;
-	struct power_supply	psy;
-	struct usb_phy		*phy;
-	struct notifier_block	nb;
-	struct work_struct	work;
+	struct device			*dev;
+	struct power_supply		*psy;
+	struct power_supply_desc	psy_desc;
+	struct usb_phy			*phy;
+	struct notifier_block		nb;
+	struct work_struct		work;
 
 	/* properties */
 	char			model[8];
@@ -259,10 +260,10 @@ static void isp1704_charger_work(struct work_struct *data)
 
 			/* detect wall charger */
 			if (isp1704_charger_detect_dcp(isp)) {
-				isp->psy.type = POWER_SUPPLY_TYPE_USB_DCP;
+				isp->psy_desc.type = POWER_SUPPLY_TYPE_USB_DCP;
 				isp->current_max = 1800;
 			} else {
-				isp->psy.type = POWER_SUPPLY_TYPE_USB;
+				isp->psy_desc.type = POWER_SUPPLY_TYPE_USB;
 				isp->current_max = 500;
 			}
 
@@ -271,7 +272,7 @@ static void isp1704_charger_work(struct work_struct *data)
 				usb_gadget_connect(isp->phy->otg->gadget);
 		}
 
-		if (isp->psy.type != POWER_SUPPLY_TYPE_USB_DCP) {
+		if (isp->psy_desc.type != POWER_SUPPLY_TYPE_USB_DCP) {
 			/*
 			 * Only 500mA here or high speed chirp
 			 * handshaking may break
@@ -280,14 +281,14 @@ static void isp1704_charger_work(struct work_struct *data)
 				isp->current_max = 500;
 
 			if (isp->current_max > 100)
-				isp->psy.type = POWER_SUPPLY_TYPE_USB_CDP;
+				isp->psy_desc.type = POWER_SUPPLY_TYPE_USB_CDP;
 		}
 		break;
 	case USB_EVENT_NONE:
 		isp->online = false;
 		isp->present = 0;
 		isp->current_max = 0;
-		isp->psy.type = POWER_SUPPLY_TYPE_USB;
+		isp->psy_desc.type = POWER_SUPPLY_TYPE_USB;
 
 		/*
 		 * Disable data pullups. We need to prevent the controller from
@@ -306,7 +307,7 @@ static void isp1704_charger_work(struct work_struct *data)
 		goto out;
 	}
 
-	power_supply_changed(&isp->psy);
+	power_supply_changed(isp->psy);
 out:
 	mutex_unlock(&lock);
 }
@@ -326,8 +327,7 @@ static int isp1704_charger_get_property(struct power_supply *psy,
 				enum power_supply_property psp,
 				union power_supply_propval *val)
 {
-	struct isp1704_charger *isp =
-		container_of(psy, struct isp1704_charger, psy);
+	struct isp1704_charger *isp = power_supply_get_drvdata(psy);
 
 	switch (psp) {
 	case POWER_SUPPLY_PROP_PRESENT:
@@ -403,6 +403,7 @@ static int isp1704_charger_probe(struct platform_device *pdev)
 {
 	struct isp1704_charger	*isp;
 	int			ret = -ENODEV;
+	struct power_supply_config psy_cfg = {};
 
 	struct isp1704_charger_data *pdata = dev_get_platdata(&pdev->dev);
 	struct device_node *np = pdev->dev.of_node;
@@ -454,15 +455,19 @@ static int isp1704_charger_probe(struct platform_device *pdev)
 	if (ret < 0)
 		goto fail1;
 
-	isp->psy.name		= "isp1704";
-	isp->psy.type		= POWER_SUPPLY_TYPE_USB;
-	isp->psy.properties	= power_props;
-	isp->psy.num_properties	= ARRAY_SIZE(power_props);
-	isp->psy.get_property	= isp1704_charger_get_property;
+	isp->psy_desc.name		= "isp1704";
+	isp->psy_desc.type		= POWER_SUPPLY_TYPE_USB;
+	isp->psy_desc.properties	= power_props;
+	isp->psy_desc.num_properties	= ARRAY_SIZE(power_props);
+	isp->psy_desc.get_property	= isp1704_charger_get_property;
 
-	ret = power_supply_register(isp->dev, &isp->psy);
-	if (ret)
+	psy_cfg.drv_data		= isp;
+
+	isp->psy = power_supply_register(isp->dev, &isp->psy_desc, &psy_cfg);
+	if (IS_ERR(isp->psy)) {
+		ret = PTR_ERR(isp->psy);
 		goto fail1;
+	}
 
 	/*
 	 * REVISIT: using work in order to allow the usb notifications to be
@@ -498,7 +503,7 @@ static int isp1704_charger_probe(struct platform_device *pdev)
 
 	return 0;
 fail2:
-	power_supply_unregister(&isp->psy);
+	power_supply_unregister(isp->psy);
 fail1:
 	isp1704_charger_set_power(isp, 0);
 fail0:
@@ -512,7 +517,7 @@ static int isp1704_charger_remove(struct platform_device *pdev)
 	struct isp1704_charger *isp = platform_get_drvdata(pdev);
 
 	usb_unregister_notifier(isp->phy, &isp->nb);
-	power_supply_unregister(&isp->psy);
+	power_supply_unregister(isp->psy);
 	isp1704_charger_set_power(isp, 0);
 
 	return 0;
diff --git a/drivers/power/jz4740-battery.c b/drivers/power/jz4740-battery.c
index 9cd391d..abdfc21 100644
--- a/drivers/power/jz4740-battery.c
+++ b/drivers/power/jz4740-battery.c
@@ -46,7 +46,8 @@ struct jz_battery {
 
 	struct completion read_completion;
 
-	struct power_supply battery;
+	struct power_supply *battery;
+	struct power_supply_desc battery_desc;
 	struct delayed_work work;
 
 	struct mutex lock;
@@ -54,7 +55,7 @@ struct jz_battery {
 
 static inline struct jz_battery *psy_to_jz_battery(struct power_supply *psy)
 {
-	return container_of(psy, struct jz_battery, battery);
+	return power_supply_get_drvdata(psy);
 }
 
 static irqreturn_t jz_battery_irq_handler(int irq, void *devid)
@@ -213,7 +214,7 @@ static void jz_battery_update(struct jz_battery *jz_battery)
 	}
 
 	if (has_changed)
-		power_supply_changed(&jz_battery->battery);
+		power_supply_changed(jz_battery->battery);
 }
 
 static enum power_supply_property jz_battery_properties[] = {
@@ -242,8 +243,9 @@ static int jz_battery_probe(struct platform_device *pdev)
 {
 	int ret = 0;
 	struct jz_battery_platform_data *pdata = pdev->dev.parent->platform_data;
+	struct power_supply_config psy_cfg = {};
 	struct jz_battery *jz_battery;
-	struct power_supply *battery;
+	struct power_supply_desc *battery_desc;
 	struct resource *mem;
 
 	if (!pdata) {
@@ -271,14 +273,17 @@ static int jz_battery_probe(struct platform_device *pdev)
 	if (IS_ERR(jz_battery->base))
 		return PTR_ERR(jz_battery->base);
 
-	battery = &jz_battery->battery;
-	battery->name = pdata->info.name;
-	battery->type = POWER_SUPPLY_TYPE_BATTERY;
-	battery->properties	= jz_battery_properties;
-	battery->num_properties	= ARRAY_SIZE(jz_battery_properties);
-	battery->get_property = jz_battery_get_property;
-	battery->external_power_changed = jz_battery_external_power_changed;
-	battery->use_for_apm = 1;
+	battery_desc = &jz_battery->battery_desc;
+	battery_desc->name = pdata->info.name;
+	battery_desc->type = POWER_SUPPLY_TYPE_BATTERY;
+	battery_desc->properties	= jz_battery_properties;
+	battery_desc->num_properties	= ARRAY_SIZE(jz_battery_properties);
+	battery_desc->get_property	= jz_battery_get_property;
+	battery_desc->external_power_changed =
+					jz_battery_external_power_changed;
+	battery_desc->use_for_apm	= 1;
+
+	psy_cfg.drv_data = jz_battery;
 
 	jz_battery->pdata = pdata;
 	jz_battery->pdev = pdev;
@@ -330,9 +335,11 @@ static int jz_battery_probe(struct platform_device *pdev)
 	else
 		jz4740_adc_set_config(pdev->dev.parent, JZ_ADC_CONFIG_BAT_MB, 0);
 
-	ret = power_supply_register(&pdev->dev, &jz_battery->battery);
-	if (ret) {
+	jz_battery->battery = power_supply_register(&pdev->dev, battery_desc,
+							&psy_cfg);
+	if (IS_ERR(jz_battery->battery)) {
 		dev_err(&pdev->dev, "power supply battery register failed.\n");
+		ret = PTR_ERR(jz_battery->battery);
 		goto err_free_charge_irq;
 	}
 
@@ -364,7 +371,7 @@ static int jz_battery_remove(struct platform_device *pdev)
 		gpio_free(jz_battery->pdata->gpio_charge);
 	}
 
-	power_supply_unregister(&jz_battery->battery);
+	power_supply_unregister(jz_battery->battery);
 
 	free_irq(jz_battery->irq, jz_battery);
 
diff --git a/drivers/power/lp8727_charger.c b/drivers/power/lp8727_charger.c
index 32de636..7e741f1 100644
--- a/drivers/power/lp8727_charger.c
+++ b/drivers/power/lp8727_charger.c
@@ -80,9 +80,9 @@ enum lp8727_die_temp {
 };
 
 struct lp8727_psy {
-	struct power_supply ac;
-	struct power_supply usb;
-	struct power_supply batt;
+	struct power_supply *ac;
+	struct power_supply *usb;
+	struct power_supply *batt;
 };
 
 struct lp8727_chg {
@@ -242,9 +242,9 @@ static void lp8727_delayed_func(struct work_struct *_work)
 	lp8727_id_detection(pchg, idno, vbus);
 	lp8727_enable_chgdet(pchg);
 
-	power_supply_changed(&pchg->psy->ac);
-	power_supply_changed(&pchg->psy->usb);
-	power_supply_changed(&pchg->psy->batt);
+	power_supply_changed(pchg->psy->ac);
+	power_supply_changed(pchg->psy->usb);
+	power_supply_changed(pchg->psy->batt);
 }
 
 static irqreturn_t lp8727_isr_func(int irq, void *ptr)
@@ -311,12 +311,12 @@ static int lp8727_charger_get_property(struct power_supply *psy,
 				       enum power_supply_property psp,
 				       union power_supply_propval *val)
 {
-	struct lp8727_chg *pchg = dev_get_drvdata(psy->dev->parent);
+	struct lp8727_chg *pchg = dev_get_drvdata(psy->dev.parent);
 
 	if (psp != POWER_SUPPLY_PROP_ONLINE)
 		return -EINVAL;
 
-	val->intval = lp8727_is_charger_attached(psy->name, pchg->devid);
+	val->intval = lp8727_is_charger_attached(psy->desc->name, pchg->devid);
 
 	return 0;
 }
@@ -337,14 +337,14 @@ static int lp8727_battery_get_property(struct power_supply *psy,
 				       enum power_supply_property psp,
 				       union power_supply_propval *val)
 {
-	struct lp8727_chg *pchg = dev_get_drvdata(psy->dev->parent);
+	struct lp8727_chg *pchg = dev_get_drvdata(psy->dev.parent);
 	struct lp8727_platform_data *pdata = pchg->pdata;
 	enum lp8727_die_temp temp;
 	u8 read;
 
 	switch (psp) {
 	case POWER_SUPPLY_PROP_STATUS:
-		if (!lp8727_is_charger_attached(psy->name, pchg->devid)) {
+		if (!lp8727_is_charger_attached(psy->desc->name, pchg->devid)) {
 			val->intval = POWER_SUPPLY_STATUS_DISCHARGING;
 			return 0;
 		}
@@ -400,13 +400,13 @@ static int lp8727_battery_get_property(struct power_supply *psy,
 
 static void lp8727_charger_changed(struct power_supply *psy)
 {
-	struct lp8727_chg *pchg = dev_get_drvdata(psy->dev->parent);
+	struct lp8727_chg *pchg = dev_get_drvdata(psy->dev.parent);
 	u8 eoc_level;
 	u8 ichg;
 	u8 val;
 
 	/* skip if no charger exists */
-	if (!lp8727_is_charger_attached(psy->name, pchg->devid))
+	if (!lp8727_is_charger_attached(psy->desc->name, pchg->devid))
 		return;
 
 	/* update charging parameters */
@@ -418,8 +418,34 @@ static void lp8727_charger_changed(struct power_supply *psy)
 	}
 }
 
+static const struct power_supply_desc lp8727_ac_desc = {
+	.name			= "ac",
+	.type			= POWER_SUPPLY_TYPE_MAINS,
+	.properties		= lp8727_charger_prop,
+	.num_properties		= ARRAY_SIZE(lp8727_charger_prop),
+	.get_property		= lp8727_charger_get_property,
+};
+
+static const struct power_supply_desc lp8727_usb_desc = {
+	.name			= "usb",
+	.type			= POWER_SUPPLY_TYPE_USB,
+	.properties		= lp8727_charger_prop,
+	.num_properties		= ARRAY_SIZE(lp8727_charger_prop),
+	.get_property		= lp8727_charger_get_property,
+};
+
+static const struct power_supply_desc lp8727_batt_desc = {
+	.name			= "main_batt",
+	.type			= POWER_SUPPLY_TYPE_BATTERY,
+	.properties		= lp8727_battery_prop,
+	.num_properties		= ARRAY_SIZE(lp8727_battery_prop),
+	.get_property		= lp8727_battery_get_property,
+	.external_power_changed	= lp8727_charger_changed,
+};
+
 static int lp8727_register_psy(struct lp8727_chg *pchg)
 {
+	struct power_supply_config psy_cfg = {}; /* Only for ac and usb */
 	struct lp8727_psy *psy;
 
 	psy = devm_kzalloc(pchg->dev, sizeof(*psy), GFP_KERNEL);
@@ -428,44 +454,28 @@ static int lp8727_register_psy(struct lp8727_chg *pchg)
 
 	pchg->psy = psy;
 
-	psy->ac.name = "ac";
-	psy->ac.type = POWER_SUPPLY_TYPE_MAINS;
-	psy->ac.properties = lp8727_charger_prop;
-	psy->ac.num_properties = ARRAY_SIZE(lp8727_charger_prop);
-	psy->ac.get_property = lp8727_charger_get_property;
-	psy->ac.supplied_to = battery_supplied_to;
-	psy->ac.num_supplicants = ARRAY_SIZE(battery_supplied_to);
+	psy_cfg.supplied_to = battery_supplied_to;
+	psy_cfg.num_supplicants = ARRAY_SIZE(battery_supplied_to);
 
-	if (power_supply_register(pchg->dev, &psy->ac))
+	psy->ac = power_supply_register(pchg->dev, &lp8727_ac_desc, &psy_cfg);
+	if (IS_ERR(psy->ac))
 		goto err_psy_ac;
 
-	psy->usb.name = "usb";
-	psy->usb.type = POWER_SUPPLY_TYPE_USB;
-	psy->usb.properties = lp8727_charger_prop;
-	psy->usb.num_properties = ARRAY_SIZE(lp8727_charger_prop);
-	psy->usb.get_property = lp8727_charger_get_property;
-	psy->usb.supplied_to = battery_supplied_to;
-	psy->usb.num_supplicants = ARRAY_SIZE(battery_supplied_to);
-
-	if (power_supply_register(pchg->dev, &psy->usb))
+	psy->usb = power_supply_register(pchg->dev, &lp8727_usb_desc,
+					 &psy_cfg);
+	if (IS_ERR(psy->usb))
 		goto err_psy_usb;
 
-	psy->batt.name = "main_batt";
-	psy->batt.type = POWER_SUPPLY_TYPE_BATTERY;
-	psy->batt.properties = lp8727_battery_prop;
-	psy->batt.num_properties = ARRAY_SIZE(lp8727_battery_prop);
-	psy->batt.get_property = lp8727_battery_get_property;
-	psy->batt.external_power_changed = lp8727_charger_changed;
-
-	if (power_supply_register(pchg->dev, &psy->batt))
+	psy->batt = power_supply_register(pchg->dev, &lp8727_batt_desc, NULL);
+	if (IS_ERR(psy->batt))
 		goto err_psy_batt;
 
 	return 0;
 
 err_psy_batt:
-	power_supply_unregister(&psy->usb);
+	power_supply_unregister(psy->usb);
 err_psy_usb:
-	power_supply_unregister(&psy->ac);
+	power_supply_unregister(psy->ac);
 err_psy_ac:
 	return -EPERM;
 }
@@ -477,9 +487,9 @@ static void lp8727_unregister_psy(struct lp8727_chg *pchg)
 	if (!psy)
 		return;
 
-	power_supply_unregister(&psy->ac);
-	power_supply_unregister(&psy->usb);
-	power_supply_unregister(&psy->batt);
+	power_supply_unregister(psy->ac);
+	power_supply_unregister(psy->usb);
+	power_supply_unregister(psy->batt);
 }
 
 #ifdef CONFIG_OF
diff --git a/drivers/power/lp8788-charger.c b/drivers/power/lp8788-charger.c
index 21fc233..f5a48fd 100644
--- a/drivers/power/lp8788-charger.c
+++ b/drivers/power/lp8788-charger.c
@@ -105,8 +105,8 @@ struct lp8788_chg_irq {
  */
 struct lp8788_charger {
 	struct lp8788 *lp;
-	struct power_supply charger;
-	struct power_supply battery;
+	struct power_supply *charger;
+	struct power_supply *battery;
 	struct work_struct charger_work;
 	struct iio_channel *chan[LP8788_NUM_CHG_ADC];
 	struct lp8788_chg_irq irqs[LP8788_MAX_CHG_IRQS];
@@ -148,7 +148,7 @@ static int lp8788_charger_get_property(struct power_supply *psy,
 					enum power_supply_property psp,
 					union power_supply_propval *val)
 {
-	struct lp8788_charger *pchg = dev_get_drvdata(psy->dev->parent);
+	struct lp8788_charger *pchg = dev_get_drvdata(psy->dev.parent);
 	u8 read;
 
 	switch (psp) {
@@ -337,7 +337,7 @@ static int lp8788_battery_get_property(struct power_supply *psy,
 					enum power_supply_property psp,
 					union power_supply_propval *val)
 {
-	struct lp8788_charger *pchg = dev_get_drvdata(psy->dev->parent);
+	struct lp8788_charger *pchg = dev_get_drvdata(psy->dev.parent);
 
 	switch (psp) {
 	case POWER_SUPPLY_PROP_STATUS:
@@ -397,36 +397,50 @@ static int lp8788_update_charger_params(struct platform_device *pdev,
 	return 0;
 }
 
+static const struct power_supply_desc lp8788_psy_charger_desc = {
+	.name		= LP8788_CHARGER_NAME,
+	.type		= POWER_SUPPLY_TYPE_MAINS,
+	.properties	= lp8788_charger_prop,
+	.num_properties	= ARRAY_SIZE(lp8788_charger_prop),
+	.get_property	= lp8788_charger_get_property,
+};
+
+static const struct power_supply_desc lp8788_psy_battery_desc = {
+	.name		= LP8788_BATTERY_NAME,
+	.type		= POWER_SUPPLY_TYPE_BATTERY,
+	.properties	= lp8788_battery_prop,
+	.num_properties	= ARRAY_SIZE(lp8788_battery_prop),
+	.get_property	= lp8788_battery_get_property,
+};
+
 static int lp8788_psy_register(struct platform_device *pdev,
 				struct lp8788_charger *pchg)
 {
-	pchg->charger.name = LP8788_CHARGER_NAME;
-	pchg->charger.type = POWER_SUPPLY_TYPE_MAINS;
-	pchg->charger.properties = lp8788_charger_prop;
-	pchg->charger.num_properties = ARRAY_SIZE(lp8788_charger_prop);
-	pchg->charger.get_property = lp8788_charger_get_property;
-	pchg->charger.supplied_to = battery_supplied_to;
-	pchg->charger.num_supplicants = ARRAY_SIZE(battery_supplied_to);
-
-	if (power_supply_register(&pdev->dev, &pchg->charger))
-		return -EPERM;
+	struct power_supply_config charger_cfg = {};
+
+	charger_cfg.supplied_to = battery_supplied_to;
+	charger_cfg.num_supplicants = ARRAY_SIZE(battery_supplied_to);
 
-	pchg->battery.name = LP8788_BATTERY_NAME;
-	pchg->battery.type = POWER_SUPPLY_TYPE_BATTERY;
-	pchg->battery.properties = lp8788_battery_prop;
-	pchg->battery.num_properties = ARRAY_SIZE(lp8788_battery_prop);
-	pchg->battery.get_property = lp8788_battery_get_property;
+	pchg->charger = power_supply_register(&pdev->dev,
+					      &lp8788_psy_charger_desc,
+					      &charger_cfg);
+	if (IS_ERR(pchg->charger))
+		return -EPERM;
 
-	if (power_supply_register(&pdev->dev, &pchg->battery))
+	pchg->battery = power_supply_register(&pdev->dev,
+					      &lp8788_psy_battery_desc, NULL);
+	if (IS_ERR(pchg->battery)) {
+		power_supply_unregister(pchg->charger);
 		return -EPERM;
+	}
 
 	return 0;
 }
 
 static void lp8788_psy_unregister(struct lp8788_charger *pchg)
 {
-	power_supply_unregister(&pchg->battery);
-	power_supply_unregister(&pchg->charger);
+	power_supply_unregister(pchg->battery);
+	power_supply_unregister(pchg->charger);
 }
 
 static void lp8788_charger_event(struct work_struct *work)
@@ -470,8 +484,8 @@ static irqreturn_t lp8788_charger_irq_thread(int virq, void *ptr)
 	case LP8788_INT_EOC:
 	case LP8788_INT_BATT_LOW:
 	case LP8788_INT_NO_BATT:
-		power_supply_changed(&pchg->charger);
-		power_supply_changed(&pchg->battery);
+		power_supply_changed(pchg->charger);
+		power_supply_changed(pchg->battery);
 		break;
 	default:
 		break;
diff --git a/drivers/power/ltc2941-battery-gauge.c b/drivers/power/ltc2941-battery-gauge.c
index e31c927..daeb086 100644
--- a/drivers/power/ltc2941-battery-gauge.c
+++ b/drivers/power/ltc2941-battery-gauge.c
@@ -59,7 +59,8 @@ enum ltc294x_reg {
 
 struct ltc294x_info {
 	struct i2c_client *client;	/* I2C Client pointer */
-	struct power_supply supply;	/* Supply pointer */
+	struct power_supply *supply;	/* Supply pointer */
+	struct power_supply_desc supply_desc;	/* Supply description */
 	struct delayed_work work;	/* Work scheduler */
 	int num_regs;	/* Number of registers (chip type) */
 	int id;		/* Identifier of ltc294x chip */
@@ -294,8 +295,7 @@ static int ltc294x_get_property(struct power_supply *psy,
 				enum power_supply_property prop,
 				union power_supply_propval *val)
 {
-	struct ltc294x_info *info =
-		container_of(psy, struct ltc294x_info, supply);
+	struct ltc294x_info *info = power_supply_get_drvdata(psy);
 
 	switch (prop) {
 	case POWER_SUPPLY_PROP_CHARGE_NOW:
@@ -317,8 +317,7 @@ static int ltc294x_set_property(struct power_supply *psy,
 	enum power_supply_property psp,
 	const union power_supply_propval *val)
 {
-	struct ltc294x_info *info =
-		container_of(psy, struct ltc294x_info, supply);
+	struct ltc294x_info *info = power_supply_get_drvdata(psy);
 
 	switch (psp) {
 	case POWER_SUPPLY_PROP_CHARGE_NOW:
@@ -345,7 +344,7 @@ static void ltc294x_update(struct ltc294x_info *info)
 
 	if (charge != info->charge) {
 		info->charge = charge;
-		power_supply_changed(&info->supply);
+		power_supply_changed(info->supply);
 	}
 }
 
@@ -371,8 +370,8 @@ static int ltc294x_i2c_remove(struct i2c_client *client)
 	struct ltc294x_info *info = i2c_get_clientdata(client);
 
 	cancel_delayed_work(&info->work);
-	power_supply_unregister(&info->supply);
-	kfree(info->supply.name);
+	power_supply_unregister(info->supply);
+	kfree(info->supply_desc.name);
 	mutex_lock(&ltc294x_lock);
 	idr_remove(&ltc294x_id, info->id);
 	mutex_unlock(&ltc294x_lock);
@@ -382,6 +381,7 @@ static int ltc294x_i2c_remove(struct i2c_client *client)
 static int ltc294x_i2c_probe(struct i2c_client *client,
 	const struct i2c_device_id *id)
 {
+	struct power_supply_config psy_cfg = {};
 	struct ltc294x_info *info;
 	int ret;
 	int num;
@@ -406,8 +406,9 @@ static int ltc294x_i2c_probe(struct i2c_client *client,
 	i2c_set_clientdata(client, info);
 
 	info->num_regs = id->driver_data;
-	info->supply.name = kasprintf(GFP_KERNEL, "%s-%d", client->name, num);
-	if (!info->supply.name) {
+	info->supply_desc.name = kasprintf(GFP_KERNEL, "%s-%d", client->name,
+					   num);
+	if (!info->supply_desc.name) {
 		ret = -ENOMEM;
 		goto fail_name;
 	}
@@ -440,30 +441,32 @@ static int ltc294x_i2c_probe(struct i2c_client *client,
 	} else {
 		if (prescaler_exp > LTC2941_MAX_PRESCALER_EXP)
 			prescaler_exp = LTC2941_MAX_PRESCALER_EXP;
-		info->Qlsb = ((58 * 50000) / r_sense) /
+		info->Qlsb = ((85 * 50000) / r_sense) /
 				(128 / (1 << prescaler_exp));
 	}
 
 	info->client = client;
 	info->id = num;
-	info->supply.type = POWER_SUPPLY_TYPE_BATTERY;
-	info->supply.properties = ltc294x_properties;
+	info->supply_desc.type = POWER_SUPPLY_TYPE_BATTERY;
+	info->supply_desc.properties = ltc294x_properties;
 	if (info->num_regs >= LTC294X_REG_TEMPERATURE_LSB)
-		info->supply.num_properties =
+		info->supply_desc.num_properties =
 			ARRAY_SIZE(ltc294x_properties);
 	else if (info->num_regs >= LTC294X_REG_CURRENT_LSB)
-		info->supply.num_properties =
+		info->supply_desc.num_properties =
 			ARRAY_SIZE(ltc294x_properties) - 1;
 	else if (info->num_regs >= LTC294X_REG_VOLTAGE_LSB)
-		info->supply.num_properties =
+		info->supply_desc.num_properties =
 			ARRAY_SIZE(ltc294x_properties) - 2;
 	else
-		info->supply.num_properties =
+		info->supply_desc.num_properties =
 			ARRAY_SIZE(ltc294x_properties) - 3;
-	info->supply.get_property = ltc294x_get_property;
-	info->supply.set_property = ltc294x_set_property;
-	info->supply.property_is_writeable = ltc294x_property_is_writeable;
-	info->supply.external_power_changed	= NULL;
+	info->supply_desc.get_property = ltc294x_get_property;
+	info->supply_desc.set_property = ltc294x_set_property;
+	info->supply_desc.property_is_writeable = ltc294x_property_is_writeable;
+	info->supply_desc.external_power_changed	= NULL;
+
+	psy_cfg.drv_data = info;
 
 	INIT_DELAYED_WORK(&info->work, ltc294x_work);
 
@@ -473,9 +476,11 @@ static int ltc294x_i2c_probe(struct i2c_client *client,
 		goto fail_comm;
 	}
 
-	ret = power_supply_register(&client->dev, &info->supply);
-	if (ret) {
+	info->supply = power_supply_register(&client->dev, &info->supply_desc,
+					     &psy_cfg);
+	if (IS_ERR(info->supply)) {
 		dev_err(&client->dev, "failed to register ltc2941\n");
+		ret = PTR_ERR(info->supply);
 		goto fail_register;
 	} else {
 		schedule_delayed_work(&info->work, LTC294X_WORK_DELAY * HZ);
@@ -484,7 +489,7 @@ static int ltc294x_i2c_probe(struct i2c_client *client,
 	return 0;
 
 fail_register:
-	kfree(info->supply.name);
+	kfree(info->supply_desc.name);
 fail_comm:
 fail_name:
 fail_info:
diff --git a/drivers/power/max14577_charger.c b/drivers/power/max14577_charger.c
index ef4103e..a36bcaf 100644
--- a/drivers/power/max14577_charger.c
+++ b/drivers/power/max14577_charger.c
@@ -22,12 +22,9 @@
 #include <linux/mfd/max14577.h>
 
 struct max14577_charger {
-	struct device *dev;
-	struct max14577	*max14577;
-	struct power_supply	charger;
-
-	unsigned int		charging_state;
-	unsigned int		battery_state;
+	struct device		*dev;
+	struct max14577		*max14577;
+	struct power_supply	*charger;
 
 	struct max14577_charger_platform_data	*pdata;
 };
@@ -57,10 +54,10 @@ static enum max14577_muic_charger_type maxim_get_charger_type(
 	}
 }
 
-static int max14577_get_charger_state(struct max14577_charger *chg)
+static int max14577_get_charger_state(struct max14577_charger *chg, int *val)
 {
 	struct regmap *rmap = chg->max14577->regmap;
-	int state = POWER_SUPPLY_STATUS_DISCHARGING;
+	int ret;
 	u8 reg_data;
 
 	/*
@@ -74,23 +71,32 @@ static int max14577_get_charger_state(struct max14577_charger *chg)
 	 *  - handle properly dead-battery charging (respect timer)
 	 *  - handle timers (fast-charge and prequal) /MBCCHGERR/
 	 */
-	max14577_read_reg(rmap, MAX14577_CHG_REG_CHG_CTRL2, &reg_data);
-	if ((reg_data & CHGCTRL2_MBCHOSTEN_MASK) == 0)
-		goto state_set;
+	ret = max14577_read_reg(rmap, MAX14577_CHG_REG_CHG_CTRL2, &reg_data);
+	if (ret < 0)
+		goto out;
+
+	if ((reg_data & CHGCTRL2_MBCHOSTEN_MASK) == 0) {
+		*val = POWER_SUPPLY_STATUS_DISCHARGING;
+		goto out;
+	}
+
+	ret = max14577_read_reg(rmap, MAX14577_CHG_REG_STATUS3, &reg_data);
+	if (ret < 0)
+		goto out;
 
-	max14577_read_reg(rmap, MAX14577_CHG_REG_STATUS3, &reg_data);
 	if (reg_data & STATUS3_CGMBC_MASK) {
 		/* Charger or USB-cable is connected */
 		if (reg_data & STATUS3_EOC_MASK)
-			state = POWER_SUPPLY_STATUS_FULL;
+			*val = POWER_SUPPLY_STATUS_FULL;
 		else
-			state = POWER_SUPPLY_STATUS_CHARGING;
-		goto state_set;
+			*val = POWER_SUPPLY_STATUS_CHARGING;
+		goto out;
 	}
 
-state_set:
-	chg->charging_state = state;
-	return state;
+	*val = POWER_SUPPLY_STATUS_DISCHARGING;
+
+out:
+	return ret;
 }
 
 /*
@@ -98,8 +104,10 @@ state_set:
  *  - POWER_SUPPLY_CHARGE_TYPE_NONE
  *  - POWER_SUPPLY_CHARGE_TYPE_FAST
  */
-static int max14577_get_charge_type(struct max14577_charger *chg)
+static int max14577_get_charge_type(struct max14577_charger *chg, int *val)
 {
+	int ret, charging;
+
 	/*
 	 * TODO: CHARGE_TYPE_TRICKLE (VCHGR_RC or EOC)?
 	 * As spec says:
@@ -108,18 +116,29 @@ static int max14577_get_charge_type(struct max14577_charger *chg)
 	 *  top-off timer starts. The device continues to trickle
 	 *  charge the battery until the top-off timer runs out."
 	 */
-	if (max14577_get_charger_state(chg) == POWER_SUPPLY_STATUS_CHARGING)
-		return POWER_SUPPLY_CHARGE_TYPE_FAST;
-	return POWER_SUPPLY_CHARGE_TYPE_NONE;
+	ret = max14577_get_charger_state(chg, &charging);
+	if (ret < 0)
+		return ret;
+
+	if (charging == POWER_SUPPLY_STATUS_CHARGING)
+		*val = POWER_SUPPLY_CHARGE_TYPE_FAST;
+	else
+		*val = POWER_SUPPLY_CHARGE_TYPE_NONE;
+
+	return 0;
 }
 
-static int max14577_get_online(struct max14577_charger *chg)
+static int max14577_get_online(struct max14577_charger *chg, int *val)
 {
 	struct regmap *rmap = chg->max14577->regmap;
 	u8 reg_data;
+	int ret;
 	enum max14577_muic_charger_type chg_type;
 
-	max14577_read_reg(rmap, MAX14577_MUIC_REG_STATUS2, &reg_data);
+	ret = max14577_read_reg(rmap, MAX14577_MUIC_REG_STATUS2, &reg_data);
+	if (ret < 0)
+		return ret;
+
 	reg_data = ((reg_data & STATUS2_CHGTYP_MASK) >> STATUS2_CHGTYP_SHIFT);
 	chg_type = maxim_get_charger_type(chg->max14577->dev_type, reg_data);
 	switch (chg_type) {
@@ -129,14 +148,17 @@ static int max14577_get_online(struct max14577_charger *chg)
 	case MAX14577_CHARGER_TYPE_SPECIAL_1A:
 	case MAX14577_CHARGER_TYPE_DEAD_BATTERY:
 	case MAX77836_CHARGER_TYPE_SPECIAL_BIAS:
-		return 1;
+		*val = 1;
+		break;
 	case MAX14577_CHARGER_TYPE_NONE:
 	case MAX14577_CHARGER_TYPE_DOWNSTREAM_PORT:
 	case MAX14577_CHARGER_TYPE_RESERVED:
 	case MAX77836_CHARGER_TYPE_RESERVED:
 	default:
-		return 0;
+		*val = 0;
 	}
+
+	return 0;
 }
 
 /*
@@ -145,30 +167,38 @@ static int max14577_get_online(struct max14577_charger *chg)
  *  - POWER_SUPPLY_HEALTH_OVERVOLTAGE
  *  - POWER_SUPPLY_HEALTH_GOOD
  */
-static int max14577_get_battery_health(struct max14577_charger *chg)
+static int max14577_get_battery_health(struct max14577_charger *chg, int *val)
 {
 	struct regmap *rmap = chg->max14577->regmap;
-	int state = POWER_SUPPLY_HEALTH_GOOD;
+	int ret;
 	u8 reg_data;
 	enum max14577_muic_charger_type chg_type;
 
-	max14577_read_reg(rmap, MAX14577_MUIC_REG_STATUS2, &reg_data);
+	ret = max14577_read_reg(rmap, MAX14577_MUIC_REG_STATUS2, &reg_data);
+	if (ret < 0)
+		goto out;
+
 	reg_data = ((reg_data & STATUS2_CHGTYP_MASK) >> STATUS2_CHGTYP_SHIFT);
 	chg_type = maxim_get_charger_type(chg->max14577->dev_type, reg_data);
 	if (chg_type == MAX14577_CHARGER_TYPE_DEAD_BATTERY) {
-		state = POWER_SUPPLY_HEALTH_DEAD;
-		goto state_set;
+		*val = POWER_SUPPLY_HEALTH_DEAD;
+		goto out;
 	}
 
-	max14577_read_reg(rmap, MAX14577_CHG_REG_STATUS3, &reg_data);
+	ret = max14577_read_reg(rmap, MAX14577_CHG_REG_STATUS3, &reg_data);
+	if (ret < 0)
+		goto out;
+
 	if (reg_data & STATUS3_OVP_MASK) {
-		state = POWER_SUPPLY_HEALTH_OVERVOLTAGE;
-		goto state_set;
+		*val = POWER_SUPPLY_HEALTH_OVERVOLTAGE;
+		goto out;
 	}
 
-state_set:
-	chg->battery_state = state;
-	return state;
+	/* Not dead, not overvoltage */
+	*val = POWER_SUPPLY_HEALTH_GOOD;
+
+out:
+	return ret;
 }
 
 /*
@@ -176,9 +206,11 @@ state_set:
  * The max14577 chip doesn't report any status of battery presence.
  * Lets assume that it will always be used with some battery.
  */
-static int max14577_get_present(struct max14577_charger *chg)
+static int max14577_get_present(struct max14577_charger *chg, int *val)
 {
-	return 1;
+	*val = 1;
+
+	return 0;
 }
 
 static int max14577_set_fast_charge_timer(struct max14577_charger *chg,
@@ -389,26 +421,24 @@ static int max14577_charger_get_property(struct power_supply *psy,
 			    enum power_supply_property psp,
 			    union power_supply_propval *val)
 {
-	struct max14577_charger *chg = container_of(psy,
-						  struct max14577_charger,
-						  charger);
+	struct max14577_charger *chg = power_supply_get_drvdata(psy);
 	int ret = 0;
 
 	switch (psp) {
 	case POWER_SUPPLY_PROP_STATUS:
-		val->intval = max14577_get_charger_state(chg);
+		ret = max14577_get_charger_state(chg, &val->intval);
 		break;
 	case POWER_SUPPLY_PROP_CHARGE_TYPE:
-		val->intval = max14577_get_charge_type(chg);
+		ret = max14577_get_charge_type(chg, &val->intval);
 		break;
 	case POWER_SUPPLY_PROP_HEALTH:
-		val->intval = max14577_get_battery_health(chg);
+		ret = max14577_get_battery_health(chg, &val->intval);
 		break;
 	case POWER_SUPPLY_PROP_PRESENT:
-		val->intval = max14577_get_present(chg);
+		ret = max14577_get_present(chg, &val->intval);
 		break;
 	case POWER_SUPPLY_PROP_ONLINE:
-		val->intval = max14577_get_online(chg);
+		ret = max14577_get_online(chg, &val->intval);
 		break;
 	case POWER_SUPPLY_PROP_MODEL_NAME:
 		BUILD_BUG_ON(ARRAY_SIZE(model_names) != MAXIM_DEVICE_TYPE_NUM);
@@ -424,6 +454,14 @@ static int max14577_charger_get_property(struct power_supply *psy,
 	return ret;
 }
 
+static const struct power_supply_desc max14577_charger_desc = {
+	.name = "max14577-charger",
+	.type = POWER_SUPPLY_TYPE_BATTERY,
+	.properties = max14577_charger_props,
+	.num_properties = ARRAY_SIZE(max14577_charger_props),
+	.get_property = max14577_charger_get_property,
+};
+
 #ifdef CONFIG_OF
 static struct max14577_charger_platform_data *max14577_charger_dt_init(
 		struct platform_device *pdev)
@@ -531,6 +569,7 @@ static DEVICE_ATTR(fast_charge_timer, S_IRUGO | S_IWUSR,
 static int max14577_charger_probe(struct platform_device *pdev)
 {
 	struct max14577_charger *chg;
+	struct power_supply_config psy_cfg = {};
 	struct max14577 *max14577 = dev_get_drvdata(pdev->dev.parent);
 	int ret;
 
@@ -550,21 +589,18 @@ static int max14577_charger_probe(struct platform_device *pdev)
 	if (ret)
 		return ret;
 
-	chg->charger.name = "max14577-charger",
-	chg->charger.type = POWER_SUPPLY_TYPE_BATTERY,
-	chg->charger.properties = max14577_charger_props,
-	chg->charger.num_properties = ARRAY_SIZE(max14577_charger_props),
-	chg->charger.get_property = max14577_charger_get_property,
-
 	ret = device_create_file(&pdev->dev, &dev_attr_fast_charge_timer);
 	if (ret) {
 		dev_err(&pdev->dev, "failed: create sysfs entry\n");
 		return ret;
 	}
 
-	ret = power_supply_register(&pdev->dev, &chg->charger);
-	if (ret) {
+	psy_cfg.drv_data = chg;
+	chg->charger = power_supply_register(&pdev->dev, &max14577_charger_desc,
+						&psy_cfg);
+	if (IS_ERR(chg->charger)) {
 		dev_err(&pdev->dev, "failed: power supply register\n");
+		ret = PTR_ERR(chg->charger);
 		goto err;
 	}
 
@@ -585,7 +621,7 @@ static int max14577_charger_remove(struct platform_device *pdev)
 	struct max14577_charger *chg = platform_get_drvdata(pdev);
 
 	device_remove_file(&pdev->dev, &dev_attr_fast_charge_timer);
-	power_supply_unregister(&chg->charger);
+	power_supply_unregister(chg->charger);
 
 	return 0;
 }
diff --git a/drivers/power/max17040_battery.c b/drivers/power/max17040_battery.c
index 14d4470..8689c80 100644
--- a/drivers/power/max17040_battery.c
+++ b/drivers/power/max17040_battery.c
@@ -40,7 +40,7 @@
 struct max17040_chip {
 	struct i2c_client		*client;
 	struct delayed_work		work;
-	struct power_supply		battery;
+	struct power_supply		*battery;
 	struct max17040_platform_data	*pdata;
 
 	/* State Of Connect */
@@ -57,8 +57,7 @@ static int max17040_get_property(struct power_supply *psy,
 			    enum power_supply_property psp,
 			    union power_supply_propval *val)
 {
-	struct max17040_chip *chip = container_of(psy,
-				struct max17040_chip, battery);
+	struct max17040_chip *chip = power_supply_get_drvdata(psy);
 
 	switch (psp) {
 	case POWER_SUPPLY_PROP_STATUS:
@@ -188,7 +187,8 @@ static void max17040_work(struct work_struct *work)
 	max17040_get_online(chip->client);
 	max17040_get_status(chip->client);
 
-	schedule_delayed_work(&chip->work, MAX17040_DELAY);
+	queue_delayed_work(system_power_efficient_wq, &chip->work,
+			   MAX17040_DELAY);
 }
 
 static enum power_supply_property max17040_battery_props[] = {
@@ -198,12 +198,20 @@ static enum power_supply_property max17040_battery_props[] = {
 	POWER_SUPPLY_PROP_CAPACITY,
 };
 
+static const struct power_supply_desc max17040_battery_desc = {
+	.name		= "battery",
+	.type		= POWER_SUPPLY_TYPE_BATTERY,
+	.get_property	= max17040_get_property,
+	.properties	= max17040_battery_props,
+	.num_properties	= ARRAY_SIZE(max17040_battery_props),
+};
+
 static int max17040_probe(struct i2c_client *client,
 			const struct i2c_device_id *id)
 {
 	struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);
+	struct power_supply_config psy_cfg = {};
 	struct max17040_chip *chip;
-	int ret;
 
 	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE))
 		return -EIO;
@@ -216,24 +224,21 @@ static int max17040_probe(struct i2c_client *client,
 	chip->pdata = client->dev.platform_data;
 
 	i2c_set_clientdata(client, chip);
+	psy_cfg.drv_data = chip;
 
-	chip->battery.name		= "battery";
-	chip->battery.type		= POWER_SUPPLY_TYPE_BATTERY;
-	chip->battery.get_property	= max17040_get_property;
-	chip->battery.properties	= max17040_battery_props;
-	chip->battery.num_properties	= ARRAY_SIZE(max17040_battery_props);
-
-	ret = power_supply_register(&client->dev, &chip->battery);
-	if (ret) {
+	chip->battery = power_supply_register(&client->dev,
+				&max17040_battery_desc, &psy_cfg);
+	if (IS_ERR(chip->battery)) {
 		dev_err(&client->dev, "failed: power supply register\n");
-		return ret;
+		return PTR_ERR(chip->battery);
 	}
 
 	max17040_reset(client);
 	max17040_get_version(client);
 
 	INIT_DEFERRABLE_WORK(&chip->work, max17040_work);
-	schedule_delayed_work(&chip->work, MAX17040_DELAY);
+	queue_delayed_work(system_power_efficient_wq, &chip->work,
+			   MAX17040_DELAY);
 
 	return 0;
 }
@@ -242,7 +247,7 @@ static int max17040_remove(struct i2c_client *client)
 {
 	struct max17040_chip *chip = i2c_get_clientdata(client);
 
-	power_supply_unregister(&chip->battery);
+	power_supply_unregister(chip->battery);
 	cancel_delayed_work(&chip->work);
 	return 0;
 }
@@ -263,7 +268,8 @@ static int max17040_resume(struct device *dev)
 	struct i2c_client *client = to_i2c_client(dev);
 	struct max17040_chip *chip = i2c_get_clientdata(client);
 
-	schedule_delayed_work(&chip->work, MAX17040_DELAY);
+	queue_delayed_work(system_power_efficient_wq, &chip->work,
+			   MAX17040_DELAY);
 	return 0;
 }
 
diff --git a/drivers/power/max17042_battery.c b/drivers/power/max17042_battery.c
index 1da6c5f..6cc5e87 100644
--- a/drivers/power/max17042_battery.c
+++ b/drivers/power/max17042_battery.c
@@ -63,13 +63,10 @@
 #define dP_ACC_100	0x1900
 #define dP_ACC_200	0x3200
 
-#define MAX17042_IC_VERSION	0x0092
-#define MAX17047_IC_VERSION	0x00AC	/* same for max17050 */
-
 struct max17042_chip {
 	struct i2c_client *client;
 	struct regmap *regmap;
-	struct power_supply battery;
+	struct power_supply *battery;
 	enum max170xx_chip_type chip_type;
 	struct max17042_platform_data *pdata;
 	struct work_struct work;
@@ -96,8 +93,7 @@ static int max17042_get_property(struct power_supply *psy,
 			    enum power_supply_property psp,
 			    union power_supply_propval *val)
 {
-	struct max17042_chip *chip = container_of(psy,
-				struct max17042_chip, battery);
+	struct max17042_chip *chip = power_supply_get_drvdata(psy);
 	struct regmap *map = chip->regmap;
 	int ret;
 	u32 data;
@@ -132,7 +128,7 @@ static int max17042_get_property(struct power_supply *psy,
 		val->intval *= 20000; /* Units of LSB = 20mV */
 		break;
 	case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN:
-		if (chip->chip_type == MAX17042)
+		if (chip->chip_type == MAXIM_DEVICE_TYPE_MAX17042)
 			ret = regmap_read(map, MAX17042_V_empty, &data);
 		else
 			ret = regmap_read(map, MAX17047_V_empty, &data);
@@ -272,6 +268,7 @@ static inline void max17042_override_por(struct regmap *map,
 static inline void max10742_unlock_model(struct max17042_chip *chip)
 {
 	struct regmap *map = chip->regmap;
+
 	regmap_write(map, MAX17042_MLOCKReg1, MODEL_UNLOCK1);
 	regmap_write(map, MAX17042_MLOCKReg2, MODEL_UNLOCK2);
 }
@@ -289,6 +286,7 @@ static inline void max17042_write_model_data(struct max17042_chip *chip,
 {
 	struct regmap *map = chip->regmap;
 	int i;
+
 	for (i = 0; i < size; i++)
 		regmap_write(map, addr + i,
 			chip->pdata->config_data->cell_char_tbl[i]);
@@ -379,7 +377,8 @@ static void max17042_write_config_regs(struct max17042_chip *chip)
 	regmap_write(map, MAX17042_FilterCFG,
 			config->filter_cfg);
 	regmap_write(map, MAX17042_RelaxCFG, config->relax_cfg);
-	if (chip->chip_type == MAX17047)
+	if (chip->chip_type == MAXIM_DEVICE_TYPE_MAX17047 ||
+			chip->chip_type == MAXIM_DEVICE_TYPE_MAX17050)
 		regmap_write(map, MAX17047_FullSOCThr,
 						config->full_soc_thresh);
 }
@@ -392,7 +391,7 @@ static void  max17042_write_custom_regs(struct max17042_chip *chip)
 	max17042_write_verify_reg(map, MAX17042_RCOMP0, config->rcomp0);
 	max17042_write_verify_reg(map, MAX17042_TempCo,	config->tcompc0);
 	max17042_write_verify_reg(map, MAX17042_ICHGTerm, config->ichgt_term);
-	if (chip->chip_type == MAX17042) {
+	if (chip->chip_type == MAXIM_DEVICE_TYPE_MAX17042) {
 		regmap_write(map, MAX17042_EmptyTempCo,	config->empty_tempco);
 		max17042_write_verify_reg(map, MAX17042_K_empty0,
 					config->kempty0);
@@ -501,14 +500,14 @@ static inline void max17042_override_por_values(struct max17042_chip *chip)
 
 	max17042_override_por(map, MAX17042_FullCAP, config->fullcap);
 	max17042_override_por(map, MAX17042_FullCAPNom, config->fullcapnom);
-	if (chip->chip_type == MAX17042)
+	if (chip->chip_type == MAXIM_DEVICE_TYPE_MAX17042)
 		max17042_override_por(map, MAX17042_SOC_empty,
 						config->socempty);
 	max17042_override_por(map, MAX17042_LAvg_empty, config->lavg_empty);
 	max17042_override_por(map, MAX17042_dQacc, config->dqacc);
 	max17042_override_por(map, MAX17042_dPacc, config->dpacc);
 
-	if (chip->chip_type == MAX17042)
+	if (chip->chip_type == MAXIM_DEVICE_TYPE_MAX17042)
 		max17042_override_por(map, MAX17042_V_empty, config->vempty);
 	else
 		max17042_override_por(map, MAX17047_V_empty, config->vempty);
@@ -529,7 +528,6 @@ static int max17042_init_chip(struct max17042_chip *chip)
 {
 	struct regmap *map = chip->regmap;
 	int ret;
-	int val;
 
 	max17042_override_por_values(chip);
 	/* After Power up, the MAX17042 requires 500mS in order
@@ -572,8 +570,7 @@ static int max17042_init_chip(struct max17042_chip *chip)
 	max17042_load_new_capacity_params(chip);
 
 	/* Init complete, Clear the POR bit */
-	regmap_read(map, MAX17042_STATUS, &val);
-	regmap_write(map, MAX17042_STATUS, val & (~STATUS_POR_BIT));
+	regmap_update_bits(map, MAX17042_STATUS, STATUS_POR_BIT, 0x0);
 	return 0;
 }
 
@@ -604,7 +601,7 @@ static irqreturn_t max17042_thread_handler(int id, void *dev)
 		max17042_set_soc_threshold(chip, 1);
 	}
 
-	power_supply_changed(&chip->battery);
+	power_supply_changed(chip->battery);
 	return IRQ_HANDLED;
 }
 
@@ -664,10 +661,28 @@ static const struct regmap_config max17042_regmap_config = {
 	.val_format_endian = REGMAP_ENDIAN_NATIVE,
 };
 
+static const struct power_supply_desc max17042_psy_desc = {
+	.name		= "max170xx_battery",
+	.type		= POWER_SUPPLY_TYPE_BATTERY,
+	.get_property	= max17042_get_property,
+	.properties	= max17042_battery_props,
+	.num_properties	= ARRAY_SIZE(max17042_battery_props),
+};
+
+static const struct power_supply_desc max17042_no_current_sense_psy_desc = {
+	.name		= "max170xx_battery",
+	.type		= POWER_SUPPLY_TYPE_BATTERY,
+	.get_property	= max17042_get_property,
+	.properties	= max17042_battery_props,
+	.num_properties	= ARRAY_SIZE(max17042_battery_props) - 2,
+};
+
 static int max17042_probe(struct i2c_client *client,
 			const struct i2c_device_id *id)
 {
 	struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);
+	const struct power_supply_desc *max17042_desc = &max17042_psy_desc;
+	struct power_supply_config psy_cfg = {};
 	struct max17042_chip *chip;
 	int ret;
 	int i;
@@ -694,29 +709,13 @@ static int max17042_probe(struct i2c_client *client,
 	}
 
 	i2c_set_clientdata(client, chip);
-
-	regmap_read(chip->regmap, MAX17042_DevName, &val);
-	if (val == MAX17042_IC_VERSION) {
-		dev_dbg(&client->dev, "chip type max17042 detected\n");
-		chip->chip_type = MAX17042;
-	} else if (val == MAX17047_IC_VERSION) {
-		dev_dbg(&client->dev, "chip type max17047/50 detected\n");
-		chip->chip_type = MAX17047;
-	} else {
-		dev_err(&client->dev, "device version mismatch: %x\n", val);
-		return -EIO;
-	}
-
-	chip->battery.name		= "max170xx_battery";
-	chip->battery.type		= POWER_SUPPLY_TYPE_BATTERY;
-	chip->battery.get_property	= max17042_get_property;
-	chip->battery.properties	= max17042_battery_props;
-	chip->battery.num_properties	= ARRAY_SIZE(max17042_battery_props);
+	chip->chip_type = id->driver_data;
+	psy_cfg.drv_data = chip;
 
 	/* When current is not measured,
 	 * CURRENT_NOW and CURRENT_AVG properties should be invisible. */
 	if (!chip->pdata->enable_current_sense)
-		chip->battery.num_properties -= 2;
+		max17042_desc = &max17042_no_current_sense_psy_desc;
 
 	if (chip->pdata->r_sns == 0)
 		chip->pdata->r_sns = MAX17042_DEFAULT_SNS_RESISTOR;
@@ -733,21 +732,22 @@ static int max17042_probe(struct i2c_client *client,
 		regmap_write(chip->regmap, MAX17042_LearnCFG, 0x0007);
 	}
 
-	ret = power_supply_register(&client->dev, &chip->battery);
-	if (ret) {
+	chip->battery = power_supply_register(&client->dev, max17042_desc,
+						&psy_cfg);
+	if (IS_ERR(chip->battery)) {
 		dev_err(&client->dev, "failed: power supply register\n");
-		return ret;
+		return PTR_ERR(chip->battery);
 	}
 
 	if (client->irq) {
 		ret = request_threaded_irq(client->irq, NULL,
 					max17042_thread_handler,
 					IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
-					chip->battery.name, chip);
+					chip->battery->desc->name, chip);
 		if (!ret) {
-			regmap_read(chip->regmap, MAX17042_CONFIG, &val);
-			val |= CONFIG_ALRT_BIT_ENBL;
-			regmap_write(chip->regmap, MAX17042_CONFIG, val);
+			regmap_update_bits(chip->regmap, MAX17042_CONFIG,
+					CONFIG_ALRT_BIT_ENBL,
+					CONFIG_ALRT_BIT_ENBL);
 			max17042_set_soc_threshold(chip, 1);
 		} else {
 			client->irq = 0;
@@ -773,7 +773,7 @@ static int max17042_remove(struct i2c_client *client)
 
 	if (client->irq)
 		free_irq(client->irq, chip);
-	power_supply_unregister(&chip->battery);
+	power_supply_unregister(chip->battery);
 	return 0;
 }
 
@@ -823,9 +823,9 @@ MODULE_DEVICE_TABLE(of, max17042_dt_match);
 #endif
 
 static const struct i2c_device_id max17042_id[] = {
-	{ "max17042", 0 },
-	{ "max17047", 1 },
-	{ "max17050", 2 },
+	{ "max17042", MAXIM_DEVICE_TYPE_MAX17042 },
+	{ "max17047", MAXIM_DEVICE_TYPE_MAX17047 },
+	{ "max17050", MAXIM_DEVICE_TYPE_MAX17050 },
 	{ }
 };
 MODULE_DEVICE_TABLE(i2c, max17042_id);
diff --git a/drivers/power/max77693_charger.c b/drivers/power/max77693_charger.c
index b042970..754879e 100644
--- a/drivers/power/max77693_charger.c
+++ b/drivers/power/max77693_charger.c
@@ -22,14 +22,14 @@
 #include <linux/mfd/max77693.h>
 #include <linux/mfd/max77693-private.h>
 
-static const char *max77693_charger_name		= "max77693-charger";
+#define MAX77693_CHARGER_NAME				"max77693-charger"
 static const char *max77693_charger_model		= "MAX77693";
 static const char *max77693_charger_manufacturer	= "Maxim Integrated";
 
 struct max77693_charger {
 	struct device		*dev;
 	struct max77693_dev	*max77693;
-	struct power_supply	charger;
+	struct power_supply	*charger;
 
 	u32 constant_volt;
 	u32 min_system_volt;
@@ -38,13 +38,14 @@ struct max77693_charger {
 	u32 charge_input_threshold_volt;
 };
 
-static int max77693_get_charger_state(struct regmap *regmap)
+static int max77693_get_charger_state(struct regmap *regmap, int *val)
 {
-	int state;
+	int ret;
 	unsigned int data;
 
-	if (regmap_read(regmap, MAX77693_CHG_REG_CHG_DETAILS_01, &data) < 0)
-		return POWER_SUPPLY_STATUS_UNKNOWN;
+	ret = regmap_read(regmap, MAX77693_CHG_REG_CHG_DETAILS_01, &data);
+	if (ret < 0)
+		return ret;
 
 	data &= CHG_DETAILS_01_CHG_MASK;
 	data >>= CHG_DETAILS_01_CHG_SHIFT;
@@ -56,35 +57,36 @@ static int max77693_get_charger_state(struct regmap *regmap)
 	case MAX77693_CHARGING_TOP_OFF:
 	/* In high temp the charging current is reduced, but still charging */
 	case MAX77693_CHARGING_HIGH_TEMP:
-		state = POWER_SUPPLY_STATUS_CHARGING;
+		*val = POWER_SUPPLY_STATUS_CHARGING;
 		break;
 	case MAX77693_CHARGING_DONE:
-		state = POWER_SUPPLY_STATUS_FULL;
+		*val = POWER_SUPPLY_STATUS_FULL;
 		break;
 	case MAX77693_CHARGING_TIMER_EXPIRED:
 	case MAX77693_CHARGING_THERMISTOR_SUSPEND:
-		state = POWER_SUPPLY_STATUS_NOT_CHARGING;
+		*val = POWER_SUPPLY_STATUS_NOT_CHARGING;
 		break;
 	case MAX77693_CHARGING_OFF:
 	case MAX77693_CHARGING_OVER_TEMP:
 	case MAX77693_CHARGING_WATCHDOG_EXPIRED:
-		state = POWER_SUPPLY_STATUS_DISCHARGING;
+		*val = POWER_SUPPLY_STATUS_DISCHARGING;
 		break;
 	case MAX77693_CHARGING_RESERVED:
 	default:
-		state = POWER_SUPPLY_STATUS_UNKNOWN;
+		*val = POWER_SUPPLY_STATUS_UNKNOWN;
 	}
 
-	return state;
+	return 0;
 }
 
-static int max77693_get_charge_type(struct regmap *regmap)
+static int max77693_get_charge_type(struct regmap *regmap, int *val)
 {
-	int state;
+	int ret;
 	unsigned int data;
 
-	if (regmap_read(regmap, MAX77693_CHG_REG_CHG_DETAILS_01, &data) < 0)
-		return POWER_SUPPLY_CHARGE_TYPE_UNKNOWN;
+	ret = regmap_read(regmap, MAX77693_CHG_REG_CHG_DETAILS_01, &data);
+	if (ret < 0)
+		return ret;
 
 	data &= CHG_DETAILS_01_CHG_MASK;
 	data >>= CHG_DETAILS_01_CHG_SHIFT;
@@ -96,13 +98,13 @@ static int max77693_get_charge_type(struct regmap *regmap)
 	 * 100 and 250 mA. It is higher than prequalification current.
 	 */
 	case MAX77693_CHARGING_TOP_OFF:
-		state = POWER_SUPPLY_CHARGE_TYPE_TRICKLE;
+		*val = POWER_SUPPLY_CHARGE_TYPE_TRICKLE;
 		break;
 	case MAX77693_CHARGING_FAST_CONST_CURRENT:
 	case MAX77693_CHARGING_FAST_CONST_VOLTAGE:
 	/* In high temp the charging current is reduced, but still charging */
 	case MAX77693_CHARGING_HIGH_TEMP:
-		state = POWER_SUPPLY_CHARGE_TYPE_FAST;
+		*val = POWER_SUPPLY_CHARGE_TYPE_FAST;
 		break;
 	case MAX77693_CHARGING_DONE:
 	case MAX77693_CHARGING_TIMER_EXPIRED:
@@ -110,14 +112,14 @@ static int max77693_get_charge_type(struct regmap *regmap)
 	case MAX77693_CHARGING_OFF:
 	case MAX77693_CHARGING_OVER_TEMP:
 	case MAX77693_CHARGING_WATCHDOG_EXPIRED:
-		state = POWER_SUPPLY_CHARGE_TYPE_NONE;
+		*val = POWER_SUPPLY_CHARGE_TYPE_NONE;
 		break;
 	case MAX77693_CHARGING_RESERVED:
 	default:
-		state = POWER_SUPPLY_CHARGE_TYPE_UNKNOWN;
+		*val = POWER_SUPPLY_CHARGE_TYPE_UNKNOWN;
 	}
 
-	return state;
+	return 0;
 }
 
 /*
@@ -129,69 +131,78 @@ static int max77693_get_charge_type(struct regmap *regmap)
  *  - POWER_SUPPLY_HEALTH_UNKNOWN
  *  - POWER_SUPPLY_HEALTH_UNSPEC_FAILURE
  */
-static int max77693_get_battery_health(struct regmap *regmap)
+static int max77693_get_battery_health(struct regmap *regmap, int *val)
 {
-	int state;
+	int ret;
 	unsigned int data;
 
-	if (regmap_read(regmap, MAX77693_CHG_REG_CHG_DETAILS_01, &data) < 0)
-		return POWER_SUPPLY_HEALTH_UNKNOWN;
+	ret = regmap_read(regmap, MAX77693_CHG_REG_CHG_DETAILS_01, &data);
+	if (ret < 0)
+		return ret;
 
 	data &= CHG_DETAILS_01_BAT_MASK;
 	data >>= CHG_DETAILS_01_BAT_SHIFT;
 
 	switch (data) {
 	case MAX77693_BATTERY_NOBAT:
-		state = POWER_SUPPLY_HEALTH_DEAD;
+		*val = POWER_SUPPLY_HEALTH_DEAD;
 		break;
 	case MAX77693_BATTERY_PREQUALIFICATION:
 	case MAX77693_BATTERY_GOOD:
 	case MAX77693_BATTERY_LOWVOLTAGE:
-		state = POWER_SUPPLY_HEALTH_GOOD;
+		*val = POWER_SUPPLY_HEALTH_GOOD;
 		break;
 	case MAX77693_BATTERY_TIMER_EXPIRED:
 		/*
 		 * Took longer to charge than expected, charging suspended.
 		 * Damaged battery?
 		 */
-		state = POWER_SUPPLY_HEALTH_SAFETY_TIMER_EXPIRE;
+		*val = POWER_SUPPLY_HEALTH_SAFETY_TIMER_EXPIRE;
 		break;
 	case MAX77693_BATTERY_OVERVOLTAGE:
-		state = POWER_SUPPLY_HEALTH_OVERVOLTAGE;
+		*val = POWER_SUPPLY_HEALTH_OVERVOLTAGE;
 		break;
 	case MAX77693_BATTERY_OVERCURRENT:
-		state = POWER_SUPPLY_HEALTH_UNSPEC_FAILURE;
+		*val = POWER_SUPPLY_HEALTH_UNSPEC_FAILURE;
 		break;
 	case MAX77693_BATTERY_RESERVED:
 	default:
-		state = POWER_SUPPLY_HEALTH_UNKNOWN;
+		*val = POWER_SUPPLY_HEALTH_UNKNOWN;
 		break;
 	}
 
-	return state;
+	return 0;
 }
 
-static int max77693_get_present(struct regmap *regmap)
+static int max77693_get_present(struct regmap *regmap, int *val)
 {
 	unsigned int data;
+	int ret;
 
 	/*
 	 * Read CHG_INT_OK register. High DETBAT bit here should be
 	 * equal to value 0x0 in CHG_DETAILS_01/BAT field.
 	 */
-	regmap_read(regmap, MAX77693_CHG_REG_CHG_INT_OK, &data);
-	if (data & CHG_INT_OK_DETBAT_MASK)
-		return 0;
-	return 1;
+	ret = regmap_read(regmap, MAX77693_CHG_REG_CHG_INT_OK, &data);
+	if (ret < 0)
+		return ret;
+
+	*val = (data & CHG_INT_OK_DETBAT_MASK) ? 0 : 1;
+
+	return 0;
 }
 
-static int max77693_get_online(struct regmap *regmap)
+static int max77693_get_online(struct regmap *regmap, int *val)
 {
 	unsigned int data;
+	int ret;
+
+	ret = regmap_read(regmap, MAX77693_CHG_REG_CHG_INT_OK, &data);
+	if (ret < 0)
+		return ret;
+
+	*val = (data & CHG_INT_OK_CHGIN_MASK) ? 1 : 0;
 
-	regmap_read(regmap, MAX77693_CHG_REG_CHG_INT_OK, &data);
-	if (data & CHG_INT_OK_CHGIN_MASK)
-		return 1;
 	return 0;
 }
 
@@ -209,27 +220,25 @@ static int max77693_charger_get_property(struct power_supply *psy,
 			    enum power_supply_property psp,
 			    union power_supply_propval *val)
 {
-	struct max77693_charger *chg = container_of(psy,
-						  struct max77693_charger,
-						  charger);
+	struct max77693_charger *chg = power_supply_get_drvdata(psy);
 	struct regmap *regmap = chg->max77693->regmap;
 	int ret = 0;
 
 	switch (psp) {
 	case POWER_SUPPLY_PROP_STATUS:
-		val->intval = max77693_get_charger_state(regmap);
+		ret = max77693_get_charger_state(regmap, &val->intval);
 		break;
 	case POWER_SUPPLY_PROP_CHARGE_TYPE:
-		val->intval = max77693_get_charge_type(regmap);
+		ret = max77693_get_charge_type(regmap, &val->intval);
 		break;
 	case POWER_SUPPLY_PROP_HEALTH:
-		val->intval = max77693_get_battery_health(regmap);
+		ret = max77693_get_battery_health(regmap, &val->intval);
 		break;
 	case POWER_SUPPLY_PROP_PRESENT:
-		val->intval = max77693_get_present(regmap);
+		ret = max77693_get_present(regmap, &val->intval);
 		break;
 	case POWER_SUPPLY_PROP_ONLINE:
-		val->intval = max77693_get_online(regmap);
+		ret = max77693_get_online(regmap, &val->intval);
 		break;
 	case POWER_SUPPLY_PROP_MODEL_NAME:
 		val->strval = max77693_charger_model;
@@ -244,6 +253,14 @@ static int max77693_charger_get_property(struct power_supply *psy,
 	return ret;
 }
 
+static const struct power_supply_desc max77693_charger_desc = {
+	.name		= MAX77693_CHARGER_NAME,
+	.type		= POWER_SUPPLY_TYPE_BATTERY,
+	.properties	= max77693_charger_props,
+	.num_properties	= ARRAY_SIZE(max77693_charger_props),
+	.get_property	= max77693_charger_get_property,
+};
+
 static ssize_t device_attr_store(struct device *dev,
 		struct device_attribute *attr, const char *buf, size_t count,
 		int (*fn)(struct max77693_charger *, unsigned long))
@@ -659,6 +676,7 @@ static int max77693_dt_init(struct device *dev, struct max77693_charger *chg)
 static int max77693_charger_probe(struct platform_device *pdev)
 {
 	struct max77693_charger *chg;
+	struct power_supply_config psy_cfg = {};
 	struct max77693_dev *max77693 = dev_get_drvdata(pdev->dev.parent);
 	int ret;
 
@@ -678,11 +696,7 @@ static int max77693_charger_probe(struct platform_device *pdev)
 	if (ret)
 		return ret;
 
-	chg->charger.name = max77693_charger_name;
-	chg->charger.type = POWER_SUPPLY_TYPE_BATTERY;
-	chg->charger.properties = max77693_charger_props;
-	chg->charger.num_properties = ARRAY_SIZE(max77693_charger_props);
-	chg->charger.get_property = max77693_charger_get_property;
+	psy_cfg.drv_data = chg;
 
 	ret = device_create_file(&pdev->dev, &dev_attr_fast_charge_timer);
 	if (ret) {
@@ -703,9 +717,12 @@ static int max77693_charger_probe(struct platform_device *pdev)
 		goto err;
 	}
 
-	ret = power_supply_register(&pdev->dev, &chg->charger);
-	if (ret) {
+	chg->charger = power_supply_register(&pdev->dev,
+						&max77693_charger_desc,
+						&psy_cfg);
+	if (IS_ERR(chg->charger)) {
 		dev_err(&pdev->dev, "failed: power supply register\n");
+		ret = PTR_ERR(chg->charger);
 		goto err;
 	}
 
@@ -727,7 +744,7 @@ static int max77693_charger_remove(struct platform_device *pdev)
 	device_remove_file(&pdev->dev, &dev_attr_top_off_threshold_current);
 	device_remove_file(&pdev->dev, &dev_attr_fast_charge_timer);
 
-	power_supply_unregister(&chg->charger);
+	power_supply_unregister(chg->charger);
 
 	return 0;
 }
diff --git a/drivers/power/max8903_charger.c b/drivers/power/max8903_charger.c
index 99e3cdc..bf2b4b3 100644
--- a/drivers/power/max8903_charger.c
+++ b/drivers/power/max8903_charger.c
@@ -31,7 +31,8 @@
 struct max8903_data {
 	struct max8903_pdata pdata;
 	struct device *dev;
-	struct power_supply psy;
+	struct power_supply *psy;
+	struct power_supply_desc psy_desc;
 	bool fault;
 	bool usb_in;
 	bool ta_in;
@@ -47,8 +48,7 @@ static int max8903_get_property(struct power_supply *psy,
 		enum power_supply_property psp,
 		union power_supply_propval *val)
 {
-	struct max8903_data *data = container_of(psy,
-			struct max8903_data, psy);
+	struct max8903_data *data = power_supply_get_drvdata(psy);
 
 	switch (psp) {
 	case POWER_SUPPLY_PROP_STATUS:
@@ -104,17 +104,17 @@ static irqreturn_t max8903_dcin(int irq, void *_data)
 	dev_dbg(data->dev, "TA(DC-IN) Charger %s.\n", ta_in ?
 			"Connected" : "Disconnected");
 
-	old_type = data->psy.type;
+	old_type = data->psy_desc.type;
 
 	if (data->ta_in)
-		data->psy.type = POWER_SUPPLY_TYPE_MAINS;
+		data->psy_desc.type = POWER_SUPPLY_TYPE_MAINS;
 	else if (data->usb_in)
-		data->psy.type = POWER_SUPPLY_TYPE_USB;
+		data->psy_desc.type = POWER_SUPPLY_TYPE_USB;
 	else
-		data->psy.type = POWER_SUPPLY_TYPE_BATTERY;
+		data->psy_desc.type = POWER_SUPPLY_TYPE_BATTERY;
 
-	if (old_type != data->psy.type)
-		power_supply_changed(&data->psy);
+	if (old_type != data->psy_desc.type)
+		power_supply_changed(data->psy);
 
 	return IRQ_HANDLED;
 }
@@ -143,17 +143,17 @@ static irqreturn_t max8903_usbin(int irq, void *_data)
 	dev_dbg(data->dev, "USB Charger %s.\n", usb_in ?
 			"Connected" : "Disconnected");
 
-	old_type = data->psy.type;
+	old_type = data->psy_desc.type;
 
 	if (data->ta_in)
-		data->psy.type = POWER_SUPPLY_TYPE_MAINS;
+		data->psy_desc.type = POWER_SUPPLY_TYPE_MAINS;
 	else if (data->usb_in)
-		data->psy.type = POWER_SUPPLY_TYPE_USB;
+		data->psy_desc.type = POWER_SUPPLY_TYPE_USB;
 	else
-		data->psy.type = POWER_SUPPLY_TYPE_BATTERY;
+		data->psy_desc.type = POWER_SUPPLY_TYPE_BATTERY;
 
-	if (old_type != data->psy.type)
-		power_supply_changed(&data->psy);
+	if (old_type != data->psy_desc.type)
+		power_supply_changed(data->psy);
 
 	return IRQ_HANDLED;
 }
@@ -184,6 +184,7 @@ static int max8903_probe(struct platform_device *pdev)
 	struct max8903_data *data;
 	struct device *dev = &pdev->dev;
 	struct max8903_pdata *pdata = pdev->dev.platform_data;
+	struct power_supply_config psy_cfg = {};
 	int ret = 0;
 	int gpio;
 	int ta_in = 0;
@@ -280,17 +281,20 @@ static int max8903_probe(struct platform_device *pdev)
 	data->ta_in = ta_in;
 	data->usb_in = usb_in;
 
-	data->psy.name = "max8903_charger";
-	data->psy.type = (ta_in) ? POWER_SUPPLY_TYPE_MAINS :
+	data->psy_desc.name = "max8903_charger";
+	data->psy_desc.type = (ta_in) ? POWER_SUPPLY_TYPE_MAINS :
 			((usb_in) ? POWER_SUPPLY_TYPE_USB :
 			 POWER_SUPPLY_TYPE_BATTERY);
-	data->psy.get_property = max8903_get_property;
-	data->psy.properties = max8903_charger_props;
-	data->psy.num_properties = ARRAY_SIZE(max8903_charger_props);
+	data->psy_desc.get_property = max8903_get_property;
+	data->psy_desc.properties = max8903_charger_props;
+	data->psy_desc.num_properties = ARRAY_SIZE(max8903_charger_props);
 
-	ret = power_supply_register(dev, &data->psy);
-	if (ret) {
+	psy_cfg.drv_data = data;
+
+	data->psy = power_supply_register(dev, &data->psy_desc, &psy_cfg);
+	if (IS_ERR(data->psy)) {
 		dev_err(dev, "failed: power supply register.\n");
+		ret = PTR_ERR(data->psy);
 		goto err;
 	}
 
@@ -339,7 +343,7 @@ err_dc_irq:
 	if (pdata->dc_valid)
 		free_irq(gpio_to_irq(pdata->dok), data);
 err_psy:
-	power_supply_unregister(&data->psy);
+	power_supply_unregister(data->psy);
 err:
 	return ret;
 }
@@ -357,7 +361,7 @@ static int max8903_remove(struct platform_device *pdev)
 			free_irq(gpio_to_irq(pdata->uok), data);
 		if (pdata->dc_valid)
 			free_irq(gpio_to_irq(pdata->dok), data);
-		power_supply_unregister(&data->psy);
+		power_supply_unregister(data->psy);
 	}
 
 	return 0;
diff --git a/drivers/power/max8925_power.c b/drivers/power/max8925_power.c
index a6d45ee..57eb5c2 100644
--- a/drivers/power/max8925_power.c
+++ b/drivers/power/max8925_power.c
@@ -68,9 +68,9 @@ struct max8925_power_info {
 	struct i2c_client	*gpm;
 	struct i2c_client	*adc;
 
-	struct power_supply	ac;
-	struct power_supply	usb;
-	struct power_supply	battery;
+	struct power_supply	*ac;
+	struct power_supply	*usb;
+	struct power_supply	*battery;
 	int			irq_base;
 	unsigned		ac_online:1;
 	unsigned		usb_online:1;
@@ -196,7 +196,7 @@ static int max8925_ac_get_prop(struct power_supply *psy,
 			       enum power_supply_property psp,
 			       union power_supply_propval *val)
 {
-	struct max8925_power_info *info = dev_get_drvdata(psy->dev->parent);
+	struct max8925_power_info *info = dev_get_drvdata(psy->dev.parent);
 	int ret = 0;
 
 	switch (psp) {
@@ -230,7 +230,7 @@ static int max8925_usb_get_prop(struct power_supply *psy,
 				enum power_supply_property psp,
 				union power_supply_propval *val)
 {
-	struct max8925_power_info *info = dev_get_drvdata(psy->dev->parent);
+	struct max8925_power_info *info = dev_get_drvdata(psy->dev.parent);
 	int ret = 0;
 
 	switch (psp) {
@@ -264,7 +264,7 @@ static int max8925_bat_get_prop(struct power_supply *psy,
 				enum power_supply_property psp,
 				union power_supply_propval *val)
 {
-	struct max8925_power_info *info = dev_get_drvdata(psy->dev->parent);
+	struct max8925_power_info *info = dev_get_drvdata(psy->dev.parent);
 	int ret = 0;
 
 	switch (psp) {
@@ -347,6 +347,30 @@ static enum power_supply_property max8925_battery_props[] = {
 	POWER_SUPPLY_PROP_STATUS,
 };
 
+static const struct power_supply_desc ac_desc = {
+	.name		= "max8925-ac",
+	.type		= POWER_SUPPLY_TYPE_MAINS,
+	.properties	= max8925_ac_props,
+	.num_properties	= ARRAY_SIZE(max8925_ac_props),
+	.get_property	= max8925_ac_get_prop,
+};
+
+static const struct power_supply_desc usb_desc = {
+	.name		= "max8925-usb",
+	.type		= POWER_SUPPLY_TYPE_USB,
+	.properties	= max8925_usb_props,
+	.num_properties	= ARRAY_SIZE(max8925_usb_props),
+	.get_property	= max8925_usb_get_prop,
+};
+
+static const struct power_supply_desc battery_desc = {
+	.name		= "max8925-battery",
+	.type		= POWER_SUPPLY_TYPE_BATTERY,
+	.properties	= max8925_battery_props,
+	.num_properties	= ARRAY_SIZE(max8925_battery_props),
+	.get_property	= max8925_bat_get_prop,
+};
+
 #define REQUEST_IRQ(_irq, _name)					\
 do {									\
 	ret = request_threaded_irq(chip->irq_base + _irq, NULL,		\
@@ -482,6 +506,7 @@ max8925_power_dt_init(struct platform_device *pdev)
 static int max8925_power_probe(struct platform_device *pdev)
 {
 	struct max8925_chip *chip = dev_get_drvdata(pdev->dev.parent);
+	struct power_supply_config psy_cfg = {}; /* Only for ac and usb */
 	struct max8925_power_pdata *pdata = NULL;
 	struct max8925_power_info *info;
 	int ret;
@@ -502,40 +527,29 @@ static int max8925_power_probe(struct platform_device *pdev)
 	info->adc = chip->adc;
 	platform_set_drvdata(pdev, info);
 
-	info->ac.name = "max8925-ac";
-	info->ac.type = POWER_SUPPLY_TYPE_MAINS;
-	info->ac.properties = max8925_ac_props;
-	info->ac.num_properties = ARRAY_SIZE(max8925_ac_props);
-	info->ac.get_property = max8925_ac_get_prop;
-	info->ac.supplied_to = pdata->supplied_to;
-	info->ac.num_supplicants = pdata->num_supplicants;
-	ret = power_supply_register(&pdev->dev, &info->ac);
-	if (ret)
+	psy_cfg.supplied_to = pdata->supplied_to;
+	psy_cfg.num_supplicants = pdata->num_supplicants;
+
+	info->ac = power_supply_register(&pdev->dev, &ac_desc, &psy_cfg);
+	if (IS_ERR(info->ac)) {
+		ret = PTR_ERR(info->ac);
 		goto out;
-	info->ac.dev->parent = &pdev->dev;
-
-	info->usb.name = "max8925-usb";
-	info->usb.type = POWER_SUPPLY_TYPE_USB;
-	info->usb.properties = max8925_usb_props;
-	info->usb.num_properties = ARRAY_SIZE(max8925_usb_props);
-	info->usb.get_property = max8925_usb_get_prop;
-	info->usb.supplied_to = pdata->supplied_to;
-	info->usb.num_supplicants = pdata->num_supplicants;
-
-	ret = power_supply_register(&pdev->dev, &info->usb);
-	if (ret)
+	}
+	info->ac->dev.parent = &pdev->dev;
+
+	info->usb = power_supply_register(&pdev->dev, &usb_desc, &psy_cfg);
+	if (IS_ERR(info->usb)) {
+		ret = PTR_ERR(info->usb);
 		goto out_usb;
-	info->usb.dev->parent = &pdev->dev;
-
-	info->battery.name = "max8925-battery";
-	info->battery.type = POWER_SUPPLY_TYPE_BATTERY;
-	info->battery.properties = max8925_battery_props;
-	info->battery.num_properties = ARRAY_SIZE(max8925_battery_props);
-	info->battery.get_property = max8925_bat_get_prop;
-	ret = power_supply_register(&pdev->dev, &info->battery);
-	if (ret)
+	}
+	info->usb->dev.parent = &pdev->dev;
+
+	info->battery = power_supply_register(&pdev->dev, &battery_desc, NULL);
+	if (IS_ERR(info->battery)) {
+		ret = PTR_ERR(info->battery);
 		goto out_battery;
-	info->battery.dev->parent = &pdev->dev;
+	}
+	info->battery->dev.parent = &pdev->dev;
 
 	info->batt_detect = pdata->batt_detect;
 	info->topoff_threshold = pdata->topoff_threshold;
@@ -547,9 +561,9 @@ static int max8925_power_probe(struct platform_device *pdev)
 	max8925_init_charger(chip, info);
 	return 0;
 out_battery:
-	power_supply_unregister(&info->battery);
+	power_supply_unregister(info->battery);
 out_usb:
-	power_supply_unregister(&info->ac);
+	power_supply_unregister(info->ac);
 out:
 	return ret;
 }
@@ -559,9 +573,9 @@ static int max8925_power_remove(struct platform_device *pdev)
 	struct max8925_power_info *info = platform_get_drvdata(pdev);
 
 	if (info) {
-		power_supply_unregister(&info->ac);
-		power_supply_unregister(&info->usb);
-		power_supply_unregister(&info->battery);
+		power_supply_unregister(info->ac);
+		power_supply_unregister(info->usb);
+		power_supply_unregister(info->battery);
 		max8925_deinit_charger(info);
 	}
 	return 0;
diff --git a/drivers/power/max8997_charger.c b/drivers/power/max8997_charger.c
index aefa0c9..0b2eab5 100644
--- a/drivers/power/max8997_charger.c
+++ b/drivers/power/max8997_charger.c
@@ -30,7 +30,7 @@
 struct charger_data {
 	struct device *dev;
 	struct max8997_dev *iodev;
-	struct power_supply battery;
+	struct power_supply *battery;
 };
 
 static enum power_supply_property max8997_battery_props[] = {
@@ -44,8 +44,7 @@ static int max8997_battery_get_property(struct power_supply *psy,
 		enum power_supply_property psp,
 		union power_supply_propval *val)
 {
-	struct charger_data *charger = container_of(psy,
-			struct charger_data, battery);
+	struct charger_data *charger = power_supply_get_drvdata(psy);
 	struct i2c_client *i2c = charger->iodev->i2c;
 	int ret;
 	u8 reg;
@@ -86,12 +85,21 @@ static int max8997_battery_get_property(struct power_supply *psy,
 	return 0;
 }
 
+static const struct power_supply_desc max8997_battery_desc = {
+	.name		= "max8997_pmic",
+	.type		= POWER_SUPPLY_TYPE_BATTERY,
+	.get_property	= max8997_battery_get_property,
+	.properties	= max8997_battery_props,
+	.num_properties	= ARRAY_SIZE(max8997_battery_props),
+};
+
 static int max8997_battery_probe(struct platform_device *pdev)
 {
 	int ret = 0;
 	struct charger_data *charger;
 	struct max8997_dev *iodev = dev_get_drvdata(pdev->dev.parent);
 	struct max8997_platform_data *pdata = dev_get_platdata(iodev->dev);
+	struct power_supply_config psy_cfg = {};
 
 	if (!pdata)
 		return -EINVAL;
@@ -147,19 +155,18 @@ static int max8997_battery_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, charger);
 
-	charger->battery.name = "max8997_pmic";
-	charger->battery.type = POWER_SUPPLY_TYPE_BATTERY;
-	charger->battery.get_property = max8997_battery_get_property;
-	charger->battery.properties = max8997_battery_props;
-	charger->battery.num_properties = ARRAY_SIZE(max8997_battery_props);
 
 	charger->dev = &pdev->dev;
 	charger->iodev = iodev;
 
-	ret = power_supply_register(&pdev->dev, &charger->battery);
-	if (ret) {
+	psy_cfg.drv_data = charger;
+
+	charger->battery = power_supply_register(&pdev->dev,
+						 &max8997_battery_desc,
+						 &psy_cfg);
+	if (IS_ERR(charger->battery)) {
 		dev_err(&pdev->dev, "failed: power supply register\n");
-		return ret;
+		return PTR_ERR(charger->battery);
 	}
 
 	return 0;
@@ -169,7 +176,7 @@ static int max8997_battery_remove(struct platform_device *pdev)
 {
 	struct charger_data *charger = platform_get_drvdata(pdev);
 
-	power_supply_unregister(&charger->battery);
+	power_supply_unregister(charger->battery);
 	return 0;
 }
 
diff --git a/drivers/power/max8998_charger.c b/drivers/power/max8998_charger.c
index 08694c7..47448d4 100644
--- a/drivers/power/max8998_charger.c
+++ b/drivers/power/max8998_charger.c
@@ -30,7 +30,7 @@
 struct max8998_battery_data {
 	struct device *dev;
 	struct max8998_dev *iodev;
-	struct power_supply battery;
+	struct power_supply *battery;
 };
 
 static enum power_supply_property max8998_battery_props[] = {
@@ -43,8 +43,7 @@ static int max8998_battery_get_property(struct power_supply *psy,
 		enum power_supply_property psp,
 		union power_supply_propval *val)
 {
-	struct max8998_battery_data *max8998 = container_of(psy,
-			struct max8998_battery_data, battery);
+	struct max8998_battery_data *max8998 = power_supply_get_drvdata(psy);
 	struct i2c_client *i2c = max8998->iodev->i2c;
 	int ret;
 	u8 reg;
@@ -75,10 +74,19 @@ static int max8998_battery_get_property(struct power_supply *psy,
 	return 0;
 }
 
+static const struct power_supply_desc max8998_battery_desc = {
+	.name		= "max8998_pmic",
+	.type		= POWER_SUPPLY_TYPE_BATTERY,
+	.get_property	= max8998_battery_get_property,
+	.properties	= max8998_battery_props,
+	.num_properties	= ARRAY_SIZE(max8998_battery_props),
+};
+
 static int max8998_battery_probe(struct platform_device *pdev)
 {
 	struct max8998_dev *iodev = dev_get_drvdata(pdev->dev.parent);
 	struct max8998_platform_data *pdata = dev_get_platdata(iodev->dev);
+	struct power_supply_config psy_cfg = {};
 	struct max8998_battery_data *max8998;
 	struct i2c_client *i2c;
 	int ret = 0;
@@ -161,15 +169,15 @@ static int max8998_battery_probe(struct platform_device *pdev)
 		goto err;
 	}
 
-	max8998->battery.name = "max8998_pmic";
-	max8998->battery.type = POWER_SUPPLY_TYPE_BATTERY;
-	max8998->battery.get_property = max8998_battery_get_property;
-	max8998->battery.properties = max8998_battery_props;
-	max8998->battery.num_properties = ARRAY_SIZE(max8998_battery_props);
+	psy_cfg.drv_data = max8998;
 
-	ret = power_supply_register(max8998->dev, &max8998->battery);
-	if (ret) {
-		dev_err(max8998->dev, "failed: power supply register\n");
+	max8998->battery = power_supply_register(max8998->dev,
+						 &max8998_battery_desc,
+						 &psy_cfg);
+	if (IS_ERR(max8998->battery)) {
+		ret = PTR_ERR(max8998->battery);
+		dev_err(max8998->dev, "failed: power supply register: %d\n",
+			ret);
 		goto err;
 	}
 
@@ -182,7 +190,7 @@ static int max8998_battery_remove(struct platform_device *pdev)
 {
 	struct max8998_battery_data *max8998 = platform_get_drvdata(pdev);
 
-	power_supply_unregister(&max8998->battery);
+	power_supply_unregister(max8998->battery);
 
 	return 0;
 }
diff --git a/drivers/power/olpc_battery.c b/drivers/power/olpc_battery.c
index ad9cde7..a944338 100644
--- a/drivers/power/olpc_battery.c
+++ b/drivers/power/olpc_battery.c
@@ -81,7 +81,7 @@ static enum power_supply_property olpc_ac_props[] = {
 	POWER_SUPPLY_PROP_ONLINE,
 };
 
-static struct power_supply olpc_ac = {
+static const struct power_supply_desc olpc_ac_desc = {
 	.name = "olpc-ac",
 	.type = POWER_SUPPLY_TYPE_MAINS,
 	.properties = olpc_ac_props,
@@ -89,6 +89,8 @@ static struct power_supply olpc_ac = {
 	.get_property = olpc_ac_get_prop,
 };
 
+static struct power_supply *olpc_ac;
+
 static char bat_serial[17]; /* Ick */
 
 static int olpc_bat_get_status(union power_supply_propval *val, uint8_t ec_byte)
@@ -574,21 +576,23 @@ static struct device_attribute olpc_bat_error = {
  *		Initialisation
  *********************************************************************/
 
-static struct power_supply olpc_bat = {
+static struct power_supply_desc olpc_bat_desc = {
 	.name = "olpc-battery",
 	.get_property = olpc_bat_get_property,
 	.use_for_apm = 1,
 };
 
+static struct power_supply *olpc_bat;
+
 static int olpc_battery_suspend(struct platform_device *pdev,
 				pm_message_t state)
 {
-	if (device_may_wakeup(olpc_ac.dev))
+	if (device_may_wakeup(&olpc_ac->dev))
 		olpc_ec_wakeup_set(EC_SCI_SRC_ACPWR);
 	else
 		olpc_ec_wakeup_clear(EC_SCI_SRC_ACPWR);
 
-	if (device_may_wakeup(olpc_bat.dev))
+	if (device_may_wakeup(&olpc_bat->dev))
 		olpc_ec_wakeup_set(EC_SCI_SRC_BATTERY | EC_SCI_SRC_BATSOC
 				   | EC_SCI_SRC_BATERR);
 	else
@@ -619,52 +623,54 @@ static int olpc_battery_probe(struct platform_device *pdev)
 
 	/* Ignore the status. It doesn't actually matter */
 
-	ret = power_supply_register(&pdev->dev, &olpc_ac);
-	if (ret)
-		return ret;
+	olpc_ac = power_supply_register(&pdev->dev, &olpc_ac_desc, NULL);
+	if (IS_ERR(olpc_ac))
+		return PTR_ERR(olpc_ac);
 
 	if (olpc_board_at_least(olpc_board_pre(0xd0))) { /* XO-1.5 */
-		olpc_bat.properties = olpc_xo15_bat_props;
-		olpc_bat.num_properties = ARRAY_SIZE(olpc_xo15_bat_props);
+		olpc_bat_desc.properties = olpc_xo15_bat_props;
+		olpc_bat_desc.num_properties = ARRAY_SIZE(olpc_xo15_bat_props);
 	} else { /* XO-1 */
-		olpc_bat.properties = olpc_xo1_bat_props;
-		olpc_bat.num_properties = ARRAY_SIZE(olpc_xo1_bat_props);
+		olpc_bat_desc.properties = olpc_xo1_bat_props;
+		olpc_bat_desc.num_properties = ARRAY_SIZE(olpc_xo1_bat_props);
 	}
 
-	ret = power_supply_register(&pdev->dev, &olpc_bat);
-	if (ret)
+	olpc_bat = power_supply_register(&pdev->dev, &olpc_bat_desc, NULL);
+	if (IS_ERR(olpc_bat)) {
+		ret = PTR_ERR(olpc_bat);
 		goto battery_failed;
+	}
 
-	ret = device_create_bin_file(olpc_bat.dev, &olpc_bat_eeprom);
+	ret = device_create_bin_file(&olpc_bat->dev, &olpc_bat_eeprom);
 	if (ret)
 		goto eeprom_failed;
 
-	ret = device_create_file(olpc_bat.dev, &olpc_bat_error);
+	ret = device_create_file(&olpc_bat->dev, &olpc_bat_error);
 	if (ret)
 		goto error_failed;
 
 	if (olpc_ec_wakeup_available()) {
-		device_set_wakeup_capable(olpc_ac.dev, true);
-		device_set_wakeup_capable(olpc_bat.dev, true);
+		device_set_wakeup_capable(&olpc_ac->dev, true);
+		device_set_wakeup_capable(&olpc_bat->dev, true);
 	}
 
 	return 0;
 
 error_failed:
-	device_remove_bin_file(olpc_bat.dev, &olpc_bat_eeprom);
+	device_remove_bin_file(&olpc_bat->dev, &olpc_bat_eeprom);
 eeprom_failed:
-	power_supply_unregister(&olpc_bat);
+	power_supply_unregister(olpc_bat);
 battery_failed:
-	power_supply_unregister(&olpc_ac);
+	power_supply_unregister(olpc_ac);
 	return ret;
 }
 
 static int olpc_battery_remove(struct platform_device *pdev)
 {
-	device_remove_file(olpc_bat.dev, &olpc_bat_error);
-	device_remove_bin_file(olpc_bat.dev, &olpc_bat_eeprom);
-	power_supply_unregister(&olpc_bat);
-	power_supply_unregister(&olpc_ac);
+	device_remove_file(&olpc_bat->dev, &olpc_bat_error);
+	device_remove_bin_file(&olpc_bat->dev, &olpc_bat_eeprom);
+	power_supply_unregister(olpc_bat);
+	power_supply_unregister(olpc_ac);
 	return 0;
 }
 
diff --git a/drivers/power/pcf50633-charger.c b/drivers/power/pcf50633-charger.c
index 771c4f0..d05597b 100644
--- a/drivers/power/pcf50633-charger.c
+++ b/drivers/power/pcf50633-charger.c
@@ -33,9 +33,9 @@ struct pcf50633_mbc {
 	int adapter_online;
 	int usb_online;
 
-	struct power_supply usb;
-	struct power_supply adapter;
-	struct power_supply ac;
+	struct power_supply *usb;
+	struct power_supply *adapter;
+	struct power_supply *ac;
 };
 
 int pcf50633_mbc_usb_curlim_set(struct pcf50633 *pcf, int ma)
@@ -104,7 +104,7 @@ int pcf50633_mbc_usb_curlim_set(struct pcf50633 *pcf, int ma)
 				PCF50633_MBCC1_CHGENA, PCF50633_MBCC1_CHGENA);
 	}
 
-	power_supply_changed(&mbc->usb);
+	power_supply_changed(mbc->usb);
 
 	return ret;
 }
@@ -278,9 +278,9 @@ pcf50633_mbc_irq_handler(int irq, void *data)
 	else if (irq == PCF50633_IRQ_ADPREM)
 		mbc->adapter_online = 0;
 
-	power_supply_changed(&mbc->ac);
-	power_supply_changed(&mbc->usb);
-	power_supply_changed(&mbc->adapter);
+	power_supply_changed(mbc->ac);
+	power_supply_changed(mbc->usb);
+	power_supply_changed(mbc->adapter);
 
 	if (mbc->pcf->pdata->mbc_event_callback)
 		mbc->pcf->pdata->mbc_event_callback(mbc->pcf, irq);
@@ -290,8 +290,7 @@ static int adapter_get_property(struct power_supply *psy,
 			enum power_supply_property psp,
 			union power_supply_propval *val)
 {
-	struct pcf50633_mbc *mbc = container_of(psy,
-				struct pcf50633_mbc, adapter);
+	struct pcf50633_mbc *mbc = power_supply_get_drvdata(psy);
 	int ret = 0;
 
 	switch (psp) {
@@ -309,7 +308,7 @@ static int usb_get_property(struct power_supply *psy,
 			enum power_supply_property psp,
 			union power_supply_propval *val)
 {
-	struct pcf50633_mbc *mbc = container_of(psy, struct pcf50633_mbc, usb);
+	struct pcf50633_mbc *mbc = power_supply_get_drvdata(psy);
 	int ret = 0;
 	u8 usblim = pcf50633_reg_read(mbc->pcf, PCF50633_REG_MBCC7) &
 						PCF50633_MBCC7_USB_MASK;
@@ -330,7 +329,7 @@ static int ac_get_property(struct power_supply *psy,
 			enum power_supply_property psp,
 			union power_supply_propval *val)
 {
-	struct pcf50633_mbc *mbc = container_of(psy, struct pcf50633_mbc, ac);
+	struct pcf50633_mbc *mbc = power_supply_get_drvdata(psy);
 	int ret = 0;
 	u8 usblim = pcf50633_reg_read(mbc->pcf, PCF50633_REG_MBCC7) &
 						PCF50633_MBCC7_USB_MASK;
@@ -366,8 +365,33 @@ static const u8 mbc_irq_handlers[] = {
 	PCF50633_IRQ_LOWBAT,
 };
 
+static const struct power_supply_desc pcf50633_mbc_adapter_desc = {
+	.name		= "adapter",
+	.type		= POWER_SUPPLY_TYPE_MAINS,
+	.properties	= power_props,
+	.num_properties	= ARRAY_SIZE(power_props),
+	.get_property	= &adapter_get_property,
+};
+
+static const struct power_supply_desc pcf50633_mbc_usb_desc = {
+	.name		= "usb",
+	.type		= POWER_SUPPLY_TYPE_USB,
+	.properties	= power_props,
+	.num_properties	= ARRAY_SIZE(power_props),
+	.get_property	= usb_get_property,
+};
+
+static const struct power_supply_desc pcf50633_mbc_ac_desc = {
+	.name		= "ac",
+	.type		= POWER_SUPPLY_TYPE_MAINS,
+	.properties	= power_props,
+	.num_properties	= ARRAY_SIZE(power_props),
+	.get_property	= ac_get_property,
+};
+
 static int pcf50633_mbc_probe(struct platform_device *pdev)
 {
+	struct power_supply_config psy_cfg = {};
 	struct pcf50633_mbc *mbc;
 	int ret;
 	int i;
@@ -385,49 +409,36 @@ static int pcf50633_mbc_probe(struct platform_device *pdev)
 		pcf50633_register_irq(mbc->pcf, mbc_irq_handlers[i],
 					pcf50633_mbc_irq_handler, mbc);
 
+	psy_cfg.supplied_to		= mbc->pcf->pdata->batteries;
+	psy_cfg.num_supplicants		= mbc->pcf->pdata->num_batteries;
+	psy_cfg.drv_data		= mbc;
+
 	/* Create power supplies */
-	mbc->adapter.name		= "adapter";
-	mbc->adapter.type		= POWER_SUPPLY_TYPE_MAINS;
-	mbc->adapter.properties		= power_props;
-	mbc->adapter.num_properties	= ARRAY_SIZE(power_props);
-	mbc->adapter.get_property	= &adapter_get_property;
-	mbc->adapter.supplied_to	= mbc->pcf->pdata->batteries;
-	mbc->adapter.num_supplicants	= mbc->pcf->pdata->num_batteries;
-
-	mbc->usb.name			= "usb";
-	mbc->usb.type			= POWER_SUPPLY_TYPE_USB;
-	mbc->usb.properties		= power_props;
-	mbc->usb.num_properties		= ARRAY_SIZE(power_props);
-	mbc->usb.get_property		= usb_get_property;
-	mbc->usb.supplied_to		= mbc->pcf->pdata->batteries;
-	mbc->usb.num_supplicants	= mbc->pcf->pdata->num_batteries;
-
-	mbc->ac.name			= "ac";
-	mbc->ac.type			= POWER_SUPPLY_TYPE_MAINS;
-	mbc->ac.properties		= power_props;
-	mbc->ac.num_properties		= ARRAY_SIZE(power_props);
-	mbc->ac.get_property		= ac_get_property;
-	mbc->ac.supplied_to		= mbc->pcf->pdata->batteries;
-	mbc->ac.num_supplicants		= mbc->pcf->pdata->num_batteries;
-
-	ret = power_supply_register(&pdev->dev, &mbc->adapter);
-	if (ret) {
+	mbc->adapter = power_supply_register(&pdev->dev,
+					     &pcf50633_mbc_adapter_desc,
+					     &psy_cfg);
+	if (IS_ERR(mbc->adapter)) {
 		dev_err(mbc->pcf->dev, "failed to register adapter\n");
+		ret = PTR_ERR(mbc->adapter);
 		return ret;
 	}
 
-	ret = power_supply_register(&pdev->dev, &mbc->usb);
-	if (ret) {
+	mbc->usb = power_supply_register(&pdev->dev, &pcf50633_mbc_usb_desc,
+					 &psy_cfg);
+	if (IS_ERR(mbc->usb)) {
 		dev_err(mbc->pcf->dev, "failed to register usb\n");
-		power_supply_unregister(&mbc->adapter);
+		power_supply_unregister(mbc->adapter);
+		ret = PTR_ERR(mbc->usb);
 		return ret;
 	}
 
-	ret = power_supply_register(&pdev->dev, &mbc->ac);
-	if (ret) {
+	mbc->ac = power_supply_register(&pdev->dev, &pcf50633_mbc_ac_desc,
+					&psy_cfg);
+	if (IS_ERR(mbc->ac)) {
 		dev_err(mbc->pcf->dev, "failed to register ac\n");
-		power_supply_unregister(&mbc->adapter);
-		power_supply_unregister(&mbc->usb);
+		power_supply_unregister(mbc->adapter);
+		power_supply_unregister(mbc->usb);
+		ret = PTR_ERR(mbc->ac);
 		return ret;
 	}
 
@@ -454,9 +465,9 @@ static int pcf50633_mbc_remove(struct platform_device *pdev)
 		pcf50633_free_irq(mbc->pcf, mbc_irq_handlers[i]);
 
 	sysfs_remove_group(&pdev->dev.kobj, &mbc_attr_group);
-	power_supply_unregister(&mbc->usb);
-	power_supply_unregister(&mbc->adapter);
-	power_supply_unregister(&mbc->ac);
+	power_supply_unregister(mbc->usb);
+	power_supply_unregister(mbc->adapter);
+	power_supply_unregister(mbc->ac);
 
 	return 0;
 }
diff --git a/drivers/power/pda_power.c b/drivers/power/pda_power.c
index 0c52e2a..dfe1ee8 100644
--- a/drivers/power/pda_power.c
+++ b/drivers/power/pda_power.c
@@ -34,6 +34,7 @@ static struct timer_list charger_timer;
 static struct timer_list supply_timer;
 static struct timer_list polling_timer;
 static int polling;
+static struct power_supply *pda_psy_ac, *pda_psy_usb;
 
 #if IS_ENABLED(CONFIG_USB_PHY)
 static struct usb_phy *transceiver;
@@ -58,7 +59,7 @@ static int pda_power_get_property(struct power_supply *psy,
 {
 	switch (psp) {
 	case POWER_SUPPLY_PROP_ONLINE:
-		if (psy->type == POWER_SUPPLY_TYPE_MAINS)
+		if (psy->desc->type == POWER_SUPPLY_TYPE_MAINS)
 			val->intval = pdata->is_ac_online ?
 				      pdata->is_ac_online() : 0;
 		else
@@ -80,21 +81,17 @@ static char *pda_power_supplied_to[] = {
 	"backup-battery",
 };
 
-static struct power_supply pda_psy_ac = {
+static const struct power_supply_desc pda_psy_ac_desc = {
 	.name = "ac",
 	.type = POWER_SUPPLY_TYPE_MAINS,
-	.supplied_to = pda_power_supplied_to,
-	.num_supplicants = ARRAY_SIZE(pda_power_supplied_to),
 	.properties = pda_power_props,
 	.num_properties = ARRAY_SIZE(pda_power_props),
 	.get_property = pda_power_get_property,
 };
 
-static struct power_supply pda_psy_usb = {
+static const struct power_supply_desc pda_psy_usb_desc = {
 	.name = "usb",
 	.type = POWER_SUPPLY_TYPE_USB,
-	.supplied_to = pda_power_supplied_to,
-	.num_supplicants = ARRAY_SIZE(pda_power_supplied_to),
 	.properties = pda_power_props,
 	.num_properties = ARRAY_SIZE(pda_power_props),
 	.get_property = pda_power_get_property,
@@ -147,12 +144,12 @@ static void supply_timer_func(unsigned long unused)
 {
 	if (ac_status == PDA_PSY_TO_CHANGE) {
 		ac_status = new_ac_status;
-		power_supply_changed(&pda_psy_ac);
+		power_supply_changed(pda_psy_ac);
 	}
 
 	if (usb_status == PDA_PSY_TO_CHANGE) {
 		usb_status = new_usb_status;
-		power_supply_changed(&pda_psy_usb);
+		power_supply_changed(pda_psy_usb);
 	}
 }
 
@@ -176,9 +173,9 @@ static void charger_timer_func(unsigned long unused)
 
 static irqreturn_t power_changed_isr(int irq, void *power_supply)
 {
-	if (power_supply == &pda_psy_ac)
+	if (power_supply == pda_psy_ac)
 		ac_status = PDA_PSY_TO_CHANGE;
-	else if (power_supply == &pda_psy_usb)
+	else if (power_supply == pda_psy_usb)
 		usb_status = PDA_PSY_TO_CHANGE;
 	else
 		return IRQ_NONE;
@@ -262,6 +259,7 @@ static int otg_handle_notification(struct notifier_block *nb,
 
 static int pda_power_probe(struct platform_device *pdev)
 {
+	struct power_supply_config psy_cfg = {};
 	int ret = 0;
 
 	dev = &pdev->dev;
@@ -309,10 +307,11 @@ static int pda_power_probe(struct platform_device *pdev)
 	usb_irq = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "usb");
 
 	if (pdata->supplied_to) {
-		pda_psy_ac.supplied_to = pdata->supplied_to;
-		pda_psy_ac.num_supplicants = pdata->num_supplicants;
-		pda_psy_usb.supplied_to = pdata->supplied_to;
-		pda_psy_usb.num_supplicants = pdata->num_supplicants;
+		psy_cfg.supplied_to = pdata->supplied_to;
+		psy_cfg.num_supplicants = pdata->num_supplicants;
+	} else {
+		psy_cfg.supplied_to = pda_power_supplied_to;
+		psy_cfg.num_supplicants = ARRAY_SIZE(pda_power_supplied_to);
 	}
 
 #if IS_ENABLED(CONFIG_USB_PHY)
@@ -326,17 +325,19 @@ static int pda_power_probe(struct platform_device *pdev)
 #endif
 
 	if (pdata->is_ac_online) {
-		ret = power_supply_register(&pdev->dev, &pda_psy_ac);
-		if (ret) {
+		pda_psy_ac = power_supply_register(&pdev->dev,
+						   &pda_psy_ac_desc, &psy_cfg);
+		if (IS_ERR(pda_psy_ac)) {
 			dev_err(dev, "failed to register %s power supply\n",
-				pda_psy_ac.name);
+				pda_psy_ac_desc.name);
+			ret = PTR_ERR(pda_psy_ac);
 			goto ac_supply_failed;
 		}
 
 		if (ac_irq) {
 			ret = request_irq(ac_irq->start, power_changed_isr,
 					  get_irq_flags(ac_irq), ac_irq->name,
-					  &pda_psy_ac);
+					  pda_psy_ac);
 			if (ret) {
 				dev_err(dev, "request ac irq failed\n");
 				goto ac_irq_failed;
@@ -347,17 +348,20 @@ static int pda_power_probe(struct platform_device *pdev)
 	}
 
 	if (pdata->is_usb_online) {
-		ret = power_supply_register(&pdev->dev, &pda_psy_usb);
-		if (ret) {
+		pda_psy_usb = power_supply_register(&pdev->dev,
+						    &pda_psy_usb_desc,
+						    &psy_cfg);
+		if (IS_ERR(pda_psy_usb)) {
 			dev_err(dev, "failed to register %s power supply\n",
-				pda_psy_usb.name);
+				pda_psy_usb_desc.name);
+			ret = PTR_ERR(pda_psy_usb);
 			goto usb_supply_failed;
 		}
 
 		if (usb_irq) {
 			ret = request_irq(usb_irq->start, power_changed_isr,
 					  get_irq_flags(usb_irq),
-					  usb_irq->name, &pda_psy_usb);
+					  usb_irq->name, pda_psy_usb);
 			if (ret) {
 				dev_err(dev, "request usb irq failed\n");
 				goto usb_irq_failed;
@@ -394,21 +398,21 @@ static int pda_power_probe(struct platform_device *pdev)
 #if IS_ENABLED(CONFIG_USB_PHY)
 otg_reg_notifier_failed:
 	if (pdata->is_usb_online && usb_irq)
-		free_irq(usb_irq->start, &pda_psy_usb);
+		free_irq(usb_irq->start, pda_psy_usb);
 #endif
 usb_irq_failed:
 	if (pdata->is_usb_online)
-		power_supply_unregister(&pda_psy_usb);
+		power_supply_unregister(pda_psy_usb);
 usb_supply_failed:
 	if (pdata->is_ac_online && ac_irq)
-		free_irq(ac_irq->start, &pda_psy_ac);
+		free_irq(ac_irq->start, pda_psy_ac);
 #if IS_ENABLED(CONFIG_USB_PHY)
 	if (!IS_ERR_OR_NULL(transceiver))
 		usb_put_phy(transceiver);
 #endif
 ac_irq_failed:
 	if (pdata->is_ac_online)
-		power_supply_unregister(&pda_psy_ac);
+		power_supply_unregister(pda_psy_ac);
 ac_supply_failed:
 	if (ac_draw) {
 		regulator_put(ac_draw);
@@ -424,9 +428,9 @@ wrongid:
 static int pda_power_remove(struct platform_device *pdev)
 {
 	if (pdata->is_usb_online && usb_irq)
-		free_irq(usb_irq->start, &pda_psy_usb);
+		free_irq(usb_irq->start, pda_psy_usb);
 	if (pdata->is_ac_online && ac_irq)
-		free_irq(ac_irq->start, &pda_psy_ac);
+		free_irq(ac_irq->start, pda_psy_ac);
 
 	if (polling)
 		del_timer_sync(&polling_timer);
@@ -434,9 +438,9 @@ static int pda_power_remove(struct platform_device *pdev)
 	del_timer_sync(&supply_timer);
 
 	if (pdata->is_usb_online)
-		power_supply_unregister(&pda_psy_usb);
+		power_supply_unregister(pda_psy_usb);
 	if (pdata->is_ac_online)
-		power_supply_unregister(&pda_psy_ac);
+		power_supply_unregister(pda_psy_ac);
 #if IS_ENABLED(CONFIG_USB_PHY)
 	if (!IS_ERR_OR_NULL(transceiver))
 		usb_put_phy(transceiver);
diff --git a/drivers/power/pm2301_charger.c b/drivers/power/pm2301_charger.c
index 7773249..cc0893f 100644
--- a/drivers/power/pm2301_charger.c
+++ b/drivers/power/pm2301_charger.c
@@ -216,7 +216,7 @@ static int pm2xxx_charger_ovv_mngt(struct pm2xxx_charger *pm2, int val)
 {
 	dev_err(pm2->dev, "Overvoltage detected\n");
 	pm2->flags.ovv = true;
-	power_supply_changed(&pm2->ac_chg.psy);
+	power_supply_changed(pm2->ac_chg.psy);
 
 	/* Schedule a new HW failure check */
 	queue_delayed_work(pm2->charger_wq, &pm2->check_hw_failure_work, 0);
@@ -229,7 +229,7 @@ static int pm2xxx_charger_wd_exp_mngt(struct pm2xxx_charger *pm2, int val)
 	dev_dbg(pm2->dev , "20 minutes watchdog expired\n");
 
 	pm2->ac.wd_expired = true;
-	power_supply_changed(&pm2->ac_chg.psy);
+	power_supply_changed(pm2->ac_chg.psy);
 
 	return 0;
 }
@@ -573,7 +573,7 @@ static int pm2xxx_charger_update_charger_current(struct ux500_charger *charger,
 	struct pm2xxx_charger *pm2;
 	u8 val;
 
-	if (charger->psy.type == POWER_SUPPLY_TYPE_MAINS)
+	if (charger->psy->desc->type == POWER_SUPPLY_TYPE_MAINS)
 		pm2 = to_pm2xxx_charger_ac_device_info(charger);
 	else
 		return -ENXIO;
@@ -816,7 +816,7 @@ static int pm2xxx_charger_ac_en(struct ux500_charger *charger,
 
 		dev_dbg(pm2->dev, "PM2301: " "Disabled AC charging\n");
 	}
-	power_supply_changed(&pm2->ac_chg.psy);
+	power_supply_changed(pm2->ac_chg.psy);
 
 error_occured:
 	return ret;
@@ -827,7 +827,7 @@ static int pm2xxx_charger_watchdog_kick(struct ux500_charger *charger)
 	int ret;
 	struct pm2xxx_charger *pm2;
 
-	if (charger->psy.type == POWER_SUPPLY_TYPE_MAINS)
+	if (charger->psy->desc->type == POWER_SUPPLY_TYPE_MAINS)
 		pm2 = to_pm2xxx_charger_ac_device_info(charger);
 	else
 		return -ENXIO;
@@ -845,8 +845,8 @@ static void pm2xxx_charger_ac_work(struct work_struct *work)
 		struct pm2xxx_charger, ac_work);
 
 
-	power_supply_changed(&pm2->ac_chg.psy);
-	sysfs_notify(&pm2->ac_chg.psy.dev->kobj, NULL, "present");
+	power_supply_changed(pm2->ac_chg.psy);
+	sysfs_notify(&pm2->ac_chg.psy->dev.kobj, NULL, "present");
 };
 
 static void pm2xxx_charger_check_hw_failure_work(struct work_struct *work)
@@ -862,7 +862,7 @@ static void pm2xxx_charger_check_hw_failure_work(struct work_struct *work)
 		if (!(reg_value & (PM2XXX_INT4_S_ITVPWR1OVV |
 					PM2XXX_INT4_S_ITVPWR2OVV))) {
 			pm2->flags.ovv = false;
-			power_supply_changed(&pm2->ac_chg.psy);
+			power_supply_changed(pm2->ac_chg.psy);
 		}
 	}
 
@@ -895,7 +895,7 @@ static void pm2xxx_charger_check_main_thermal_prot_work(
 				| PM2XXX_INT5_S_ITTHERMALSHUTDOWNFALL))
 		pm2->flags.main_thermal_prot = false;
 
-	power_supply_changed(&pm2->ac_chg.psy);
+	power_supply_changed(pm2->ac_chg.psy);
 }
 
 static struct pm2xxx_interrupts pm2xxx_int = {
@@ -989,6 +989,7 @@ static int pm2xxx_wall_charger_probe(struct i2c_client *i2c_client,
 		const struct i2c_device_id *id)
 {
 	struct pm2xxx_platform_data *pl_data = i2c_client->dev.platform_data;
+	struct power_supply_config psy_cfg = {};
 	struct pm2xxx_charger *pm2;
 	int ret = 0;
 	u8 val;
@@ -1042,13 +1043,14 @@ static int pm2xxx_wall_charger_probe(struct i2c_client *i2c_client,
 
 	/* AC supply */
 	/* power_supply base class */
-	pm2->ac_chg.psy.name = pm2->pdata->label;
-	pm2->ac_chg.psy.type = POWER_SUPPLY_TYPE_MAINS;
-	pm2->ac_chg.psy.properties = pm2xxx_charger_ac_props;
-	pm2->ac_chg.psy.num_properties = ARRAY_SIZE(pm2xxx_charger_ac_props);
-	pm2->ac_chg.psy.get_property = pm2xxx_charger_ac_get_property;
-	pm2->ac_chg.psy.supplied_to = pm2->pdata->supplied_to;
-	pm2->ac_chg.psy.num_supplicants = pm2->pdata->num_supplicants;
+	pm2->ac_chg_desc.name = pm2->pdata->label;
+	pm2->ac_chg_desc.type = POWER_SUPPLY_TYPE_MAINS;
+	pm2->ac_chg_desc.properties = pm2xxx_charger_ac_props;
+	pm2->ac_chg_desc.num_properties = ARRAY_SIZE(pm2xxx_charger_ac_props);
+	pm2->ac_chg_desc.get_property = pm2xxx_charger_ac_get_property;
+
+	psy_cfg.supplied_to = pm2->pdata->supplied_to;
+	psy_cfg.num_supplicants = pm2->pdata->num_supplicants;
 	/* pm2xxx_charger sub-class */
 	pm2->ac_chg.ops.enable = &pm2xxx_charger_ac_en;
 	pm2->ac_chg.ops.kick_wd = &pm2xxx_charger_watchdog_kick;
@@ -1093,9 +1095,11 @@ static int pm2xxx_wall_charger_probe(struct i2c_client *i2c_client,
 	}
 
 	/* Register AC charger class */
-	ret = power_supply_register(pm2->dev, &pm2->ac_chg.psy);
-	if (ret) {
+	pm2->ac_chg.psy = power_supply_register(pm2->dev, &pm2->ac_chg_desc,
+						&psy_cfg);
+	if (IS_ERR(pm2->ac_chg.psy)) {
 		dev_err(pm2->dev, "failed to register AC charger\n");
+		ret = PTR_ERR(pm2->ac_chg.psy);
 		goto free_regulator;
 	}
 
@@ -1167,8 +1171,8 @@ static int pm2xxx_wall_charger_probe(struct i2c_client *i2c_client,
 		ab8500_override_turn_on_stat(~AB8500_POW_KEY_1_ON,
 					     AB8500_MAIN_CH_DET);
 		pm2->ac_conn = true;
-		power_supply_changed(&pm2->ac_chg.psy);
-		sysfs_notify(&pm2->ac_chg.psy.dev->kobj, NULL, "present");
+		power_supply_changed(pm2->ac_chg.psy);
+		sysfs_notify(&pm2->ac_chg.psy->dev.kobj, NULL, "present");
 	}
 
 	return 0;
@@ -1183,7 +1187,7 @@ unregister_pm2xxx_interrupt:
 	free_irq(gpio_to_irq(pm2->pdata->gpio_irq_number), pm2);
 unregister_pm2xxx_charger:
 	/* unregister power supply */
-	power_supply_unregister(&pm2->ac_chg.psy);
+	power_supply_unregister(pm2->ac_chg.psy);
 free_regulator:
 	/* disable the regulator */
 	regulator_put(pm2->regu);
@@ -1218,7 +1222,7 @@ static int pm2xxx_wall_charger_remove(struct i2c_client *i2c_client)
 	/* disable the regulator */
 	regulator_put(pm2->regu);
 
-	power_supply_unregister(&pm2->ac_chg.psy);
+	power_supply_unregister(pm2->ac_chg.psy);
 
 	if (gpio_is_valid(pm2->lpn_pin))
 		gpio_free(pm2->lpn_pin);
diff --git a/drivers/power/pm2301_charger.h b/drivers/power/pm2301_charger.h
index 8ce3cc0..24181cf 100644
--- a/drivers/power/pm2301_charger.h
+++ b/drivers/power/pm2301_charger.h
@@ -486,6 +486,7 @@ struct pm2xxx_charger {
 	struct work_struct check_main_thermal_prot_work;
 	struct delayed_work check_hw_failure_work;
 	struct ux500_charger ac_chg;
+	struct power_supply_desc ac_chg_desc;
 	struct pm2xxx_charger_event_flags flags;
 };
 
diff --git a/drivers/power/pmu_battery.c b/drivers/power/pmu_battery.c
index 023d2499..9c8d525 100644
--- a/drivers/power/pmu_battery.c
+++ b/drivers/power/pmu_battery.c
@@ -17,13 +17,14 @@
 #include <linux/slab.h>
 
 static struct pmu_battery_dev {
-	struct power_supply bat;
+	struct power_supply *bat;
+	struct power_supply_desc bat_desc;
 	struct pmu_battery_info *pbi;
 	char name[16];
 	int propval;
 } *pbats[PMU_MAX_BATTERIES];
 
-#define to_pmu_battery_dev(x) container_of(x, struct pmu_battery_dev, bat)
+#define to_pmu_battery_dev(x) power_supply_get_drvdata(x)
 
 /*********************************************************************
  *		Power
@@ -49,7 +50,7 @@ static enum power_supply_property pmu_ac_props[] = {
 	POWER_SUPPLY_PROP_ONLINE,
 };
 
-static struct power_supply pmu_ac = {
+static const struct power_supply_desc pmu_ac_desc = {
 	.name = "pmu-ac",
 	.type = POWER_SUPPLY_TYPE_MAINS,
 	.properties = pmu_ac_props,
@@ -57,6 +58,8 @@ static struct power_supply pmu_ac = {
 	.get_property = pmu_get_ac_prop,
 };
 
+static struct power_supply *pmu_ac;
+
 /*********************************************************************
  *		Battery properties
  *********************************************************************/
@@ -142,7 +145,7 @@ static struct platform_device *bat_pdev;
 
 static int __init pmu_bat_init(void)
 {
-	int ret;
+	int ret = 0;
 	int i;
 
 	bat_pdev = platform_device_register_simple("pmu-battery",
@@ -152,25 +155,32 @@ static int __init pmu_bat_init(void)
 		goto pdev_register_failed;
 	}
 
-	ret = power_supply_register(&bat_pdev->dev, &pmu_ac);
-	if (ret)
+	pmu_ac = power_supply_register(&bat_pdev->dev, &pmu_ac_desc, NULL);
+	if (IS_ERR(pmu_ac)) {
+		ret = PTR_ERR(pmu_ac);
 		goto ac_register_failed;
+	}
 
 	for (i = 0; i < pmu_battery_count; i++) {
+		struct power_supply_config psy_cfg = {};
 		struct pmu_battery_dev *pbat = kzalloc(sizeof(*pbat),
 						       GFP_KERNEL);
 		if (!pbat)
 			break;
 
 		sprintf(pbat->name, "PMU_battery_%d", i);
-		pbat->bat.name = pbat->name;
-		pbat->bat.properties = pmu_bat_props;
-		pbat->bat.num_properties = ARRAY_SIZE(pmu_bat_props);
-		pbat->bat.get_property = pmu_bat_get_property;
+		pbat->bat_desc.name = pbat->name;
+		pbat->bat_desc.properties = pmu_bat_props;
+		pbat->bat_desc.num_properties = ARRAY_SIZE(pmu_bat_props);
+		pbat->bat_desc.get_property = pmu_bat_get_property;
 		pbat->pbi = &pmu_batteries[i];
+		psy_cfg.drv_data = pbat;
 
-		ret = power_supply_register(&bat_pdev->dev, &pbat->bat);
-		if (ret) {
+		pbat->bat = power_supply_register(&bat_pdev->dev,
+						  &pbat->bat_desc,
+						  &psy_cfg);
+		if (IS_ERR(pbat->bat)) {
+			ret = PTR_ERR(pbat->bat);
 			kfree(pbat);
 			goto battery_register_failed;
 		}
@@ -183,10 +193,10 @@ battery_register_failed:
 	while (i--) {
 		if (!pbats[i])
 			continue;
-		power_supply_unregister(&pbats[i]->bat);
+		power_supply_unregister(pbats[i]->bat);
 		kfree(pbats[i]);
 	}
-	power_supply_unregister(&pmu_ac);
+	power_supply_unregister(pmu_ac);
 ac_register_failed:
 	platform_device_unregister(bat_pdev);
 pdev_register_failed:
@@ -201,10 +211,10 @@ static void __exit pmu_bat_exit(void)
 	for (i = 0; i < PMU_MAX_BATTERIES; i++) {
 		if (!pbats[i])
 			continue;
-		power_supply_unregister(&pbats[i]->bat);
+		power_supply_unregister(pbats[i]->bat);
 		kfree(pbats[i]);
 	}
-	power_supply_unregister(&pmu_ac);
+	power_supply_unregister(pmu_ac);
 	platform_device_unregister(bat_pdev);
 }
 
diff --git a/drivers/power/power_supply_core.c b/drivers/power/power_supply_core.c
index 694e8cd..2ed4a4a 100644
--- a/drivers/power/power_supply_core.c
+++ b/drivers/power/power_supply_core.c
@@ -40,16 +40,16 @@ static bool __power_supply_is_supplied_by(struct power_supply *supplier,
 
 	/* Support both supplied_to and supplied_from modes */
 	if (supply->supplied_from) {
-		if (!supplier->name)
+		if (!supplier->desc->name)
 			return false;
 		for (i = 0; i < supply->num_supplies; i++)
-			if (!strcmp(supplier->name, supply->supplied_from[i]))
+			if (!strcmp(supplier->desc->name, supply->supplied_from[i]))
 				return true;
 	} else {
-		if (!supply->name)
+		if (!supply->desc->name)
 			return false;
 		for (i = 0; i < supplier->num_supplicants; i++)
-			if (!strcmp(supplier->supplied_to[i], supply->name))
+			if (!strcmp(supplier->supplied_to[i], supply->desc->name))
 				return true;
 	}
 
@@ -62,8 +62,8 @@ static int __power_supply_changed_work(struct device *dev, void *data)
 	struct power_supply *pst = dev_get_drvdata(dev);
 
 	if (__power_supply_is_supplied_by(psy, pst)) {
-		if (pst->external_power_changed)
-			pst->external_power_changed(pst);
+		if (pst->desc->external_power_changed)
+			pst->desc->external_power_changed(pst);
 	}
 
 	return 0;
@@ -75,7 +75,7 @@ static void power_supply_changed_work(struct work_struct *work)
 	struct power_supply *psy = container_of(work, struct power_supply,
 						changed_work);
 
-	dev_dbg(psy->dev, "%s\n", __func__);
+	dev_dbg(&psy->dev, "%s\n", __func__);
 
 	spin_lock_irqsave(&psy->changed_lock, flags);
 	/*
@@ -93,7 +93,7 @@ static void power_supply_changed_work(struct work_struct *work)
 		power_supply_update_leds(psy);
 		atomic_notifier_call_chain(&power_supply_notifier,
 				PSY_EVENT_PROP_CHANGED, psy);
-		kobject_uevent(&psy->dev->kobj, KOBJ_CHANGE);
+		kobject_uevent(&psy->dev.kobj, KOBJ_CHANGE);
 		spin_lock_irqsave(&psy->changed_lock, flags);
 	}
 
@@ -103,7 +103,7 @@ static void power_supply_changed_work(struct work_struct *work)
 	 * to true.
 	 */
 	if (likely(!psy->changed))
-		pm_relax(psy->dev);
+		pm_relax(&psy->dev);
 	spin_unlock_irqrestore(&psy->changed_lock, flags);
 }
 
@@ -111,11 +111,11 @@ void power_supply_changed(struct power_supply *psy)
 {
 	unsigned long flags;
 
-	dev_dbg(psy->dev, "%s\n", __func__);
+	dev_dbg(&psy->dev, "%s\n", __func__);
 
 	spin_lock_irqsave(&psy->changed_lock, flags);
 	psy->changed = true;
-	pm_stay_awake(psy->dev);
+	pm_stay_awake(&psy->dev);
 	spin_unlock_irqrestore(&psy->changed_lock, flags);
 	schedule_work(&psy->changed_work);
 }
@@ -138,9 +138,9 @@ static int __power_supply_populate_supplied_from(struct device *dev,
 			break;
 
 		if (np == epsy->of_node) {
-			dev_info(psy->dev, "%s: Found supply : %s\n",
-				psy->name, epsy->name);
-			psy->supplied_from[i-1] = (char *)epsy->name;
+			dev_info(&psy->dev, "%s: Found supply : %s\n",
+				psy->desc->name, epsy->desc->name);
+			psy->supplied_from[i-1] = (char *)epsy->desc->name;
 			psy->num_supplies++;
 			of_node_put(np);
 			break;
@@ -158,7 +158,7 @@ static int power_supply_populate_supplied_from(struct power_supply *psy)
 	error = class_for_each_device(power_supply_class, NULL, psy,
 				      __power_supply_populate_supplied_from);
 
-	dev_dbg(psy->dev, "%s %d\n", __func__, error);
+	dev_dbg(&psy->dev, "%s %d\n", __func__, error);
 
 	return error;
 }
@@ -220,7 +220,7 @@ static int power_supply_check_supplies(struct power_supply *psy)
 		of_node_put(np);
 
 		if (ret) {
-			dev_dbg(psy->dev, "Failed to find supply!\n");
+			dev_dbg(&psy->dev, "Failed to find supply!\n");
 			return ret;
 		}
 	} while (np);
@@ -230,17 +230,18 @@ static int power_supply_check_supplies(struct power_supply *psy)
 		return 0;
 
 	/* All supplies found, allocate char ** array for filling */
-	psy->supplied_from = devm_kzalloc(psy->dev, sizeof(psy->supplied_from),
+	psy->supplied_from = devm_kzalloc(&psy->dev, sizeof(psy->supplied_from),
 					  GFP_KERNEL);
 	if (!psy->supplied_from) {
-		dev_err(psy->dev, "Couldn't allocate memory for supply list\n");
+		dev_err(&psy->dev, "Couldn't allocate memory for supply list\n");
 		return -ENOMEM;
 	}
 
-	*psy->supplied_from = devm_kzalloc(psy->dev, sizeof(char *) * (cnt - 1),
+	*psy->supplied_from = devm_kzalloc(&psy->dev,
+					   sizeof(char *) * (cnt - 1),
 					   GFP_KERNEL);
 	if (!*psy->supplied_from) {
-		dev_err(psy->dev, "Couldn't allocate memory for supply list\n");
+		dev_err(&psy->dev, "Couldn't allocate memory for supply list\n");
 		return -ENOMEM;
 	}
 
@@ -260,7 +261,8 @@ static int __power_supply_am_i_supplied(struct device *dev, void *data)
 	struct power_supply *epsy = dev_get_drvdata(dev);
 
 	if (__power_supply_is_supplied_by(epsy, psy))
-		if (!epsy->get_property(epsy, POWER_SUPPLY_PROP_ONLINE, &ret))
+		if (!epsy->desc->get_property(epsy, POWER_SUPPLY_PROP_ONLINE,
+					&ret))
 			return ret.intval;
 
 	return 0;
@@ -273,7 +275,7 @@ int power_supply_am_i_supplied(struct power_supply *psy)
 	error = class_for_each_device(power_supply_class, NULL, psy,
 				      __power_supply_am_i_supplied);
 
-	dev_dbg(psy->dev, "%s %d\n", __func__, error);
+	dev_dbg(&psy->dev, "%s %d\n", __func__, error);
 
 	return error;
 }
@@ -286,8 +288,9 @@ static int __power_supply_is_system_supplied(struct device *dev, void *data)
 	unsigned int *count = data;
 
 	(*count)++;
-	if (psy->type != POWER_SUPPLY_TYPE_BATTERY)
-		if (!psy->get_property(psy, POWER_SUPPLY_PROP_ONLINE, &ret))
+	if (psy->desc->type != POWER_SUPPLY_TYPE_BATTERY)
+		if (!psy->desc->get_property(psy, POWER_SUPPLY_PROP_ONLINE,
+					&ret))
 			return ret.intval;
 
 	return 0;
@@ -314,8 +317,10 @@ EXPORT_SYMBOL_GPL(power_supply_is_system_supplied);
 
 int power_supply_set_battery_charged(struct power_supply *psy)
 {
-	if (psy->type == POWER_SUPPLY_TYPE_BATTERY && psy->set_charged) {
-		psy->set_charged(psy);
+	if (atomic_read(&psy->use_cnt) >= 0 &&
+			psy->desc->type == POWER_SUPPLY_TYPE_BATTERY &&
+			psy->desc->set_charged) {
+		psy->desc->set_charged(psy);
 		return 0;
 	}
 
@@ -328,28 +333,74 @@ static int power_supply_match_device_by_name(struct device *dev, const void *dat
 	const char *name = data;
 	struct power_supply *psy = dev_get_drvdata(dev);
 
-	return strcmp(psy->name, name) == 0;
+	return strcmp(psy->desc->name, name) == 0;
 }
 
+/**
+ * power_supply_get_by_name() - Search for a power supply and returns its ref
+ * @name: Power supply name to fetch
+ *
+ * If power supply was found, it increases reference count for the
+ * internal power supply's device. The user should power_supply_put()
+ * after usage.
+ *
+ * Return: On success returns a reference to a power supply with
+ * matching name equals to @name, a NULL otherwise.
+ */
 struct power_supply *power_supply_get_by_name(const char *name)
 {
+	struct power_supply *psy = NULL;
 	struct device *dev = class_find_device(power_supply_class, NULL, name,
 					power_supply_match_device_by_name);
 
-	return dev ? dev_get_drvdata(dev) : NULL;
+	if (dev) {
+		psy = dev_get_drvdata(dev);
+		atomic_inc(&psy->use_cnt);
+	}
+
+	return psy;
 }
 EXPORT_SYMBOL_GPL(power_supply_get_by_name);
 
+/**
+ * power_supply_put() - Drop reference obtained with power_supply_get_by_name
+ * @psy: Reference to put
+ *
+ * The reference to power supply should be put before unregistering
+ * the power supply.
+ */
+void power_supply_put(struct power_supply *psy)
+{
+	might_sleep();
+
+	atomic_dec(&psy->use_cnt);
+	put_device(&psy->dev);
+}
+EXPORT_SYMBOL_GPL(power_supply_put);
+
 #ifdef CONFIG_OF
 static int power_supply_match_device_node(struct device *dev, const void *data)
 {
 	return dev->parent && dev->parent->of_node == data;
 }
 
+/**
+ * power_supply_get_by_phandle() - Search for a power supply and returns its ref
+ * @np: Pointer to device node holding phandle property
+ * @phandle_name: Name of property holding a power supply name
+ *
+ * If power supply was found, it increases reference count for the
+ * internal power supply's device. The user should power_supply_put()
+ * after usage.
+ *
+ * Return: On success returns a reference to a power supply with
+ * matching name equals to value under @property, NULL or ERR_PTR otherwise.
+ */
 struct power_supply *power_supply_get_by_phandle(struct device_node *np,
 							const char *property)
 {
 	struct device_node *power_supply_np;
+	struct power_supply *psy = NULL;
 	struct device *dev;
 
 	power_supply_np = of_parse_phandle(np, property, 0);
@@ -361,21 +412,70 @@ struct power_supply *power_supply_get_by_phandle(struct device_node *np,
 
 	of_node_put(power_supply_np);
 
-	return dev ? dev_get_drvdata(dev) : NULL;
+	if (dev) {
+		psy = dev_get_drvdata(dev);
+		atomic_inc(&psy->use_cnt);
+	}
+
+	return psy;
 }
 EXPORT_SYMBOL_GPL(power_supply_get_by_phandle);
 #endif /* CONFIG_OF */
 
+int power_supply_get_property(struct power_supply *psy,
+			    enum power_supply_property psp,
+			    union power_supply_propval *val)
+{
+	if (atomic_read(&psy->use_cnt) <= 0)
+		return -ENODEV;
+
+	return psy->desc->get_property(psy, psp, val);
+}
+EXPORT_SYMBOL_GPL(power_supply_get_property);
+
+int power_supply_set_property(struct power_supply *psy,
+			    enum power_supply_property psp,
+			    const union power_supply_propval *val)
+{
+	if (atomic_read(&psy->use_cnt) <= 0 || !psy->desc->set_property)
+		return -ENODEV;
+
+	return psy->desc->set_property(psy, psp, val);
+}
+EXPORT_SYMBOL_GPL(power_supply_set_property);
+
+int power_supply_property_is_writeable(struct power_supply *psy,
+					enum power_supply_property psp)
+{
+	if (atomic_read(&psy->use_cnt) <= 0 ||
+			!psy->desc->property_is_writeable)
+		return -ENODEV;
+
+	return psy->desc->property_is_writeable(psy, psp);
+}
+EXPORT_SYMBOL_GPL(power_supply_property_is_writeable);
+
+void power_supply_external_power_changed(struct power_supply *psy)
+{
+	if (atomic_read(&psy->use_cnt) <= 0 ||
+			!psy->desc->external_power_changed)
+		return;
+
+	psy->desc->external_power_changed(psy);
+}
+EXPORT_SYMBOL_GPL(power_supply_external_power_changed);
+
 int power_supply_powers(struct power_supply *psy, struct device *dev)
 {
-	return sysfs_create_link(&psy->dev->kobj, &dev->kobj, "powers");
+	return sysfs_create_link(&psy->dev.kobj, &dev->kobj, "powers");
 }
 EXPORT_SYMBOL_GPL(power_supply_powers);
 
 static void power_supply_dev_release(struct device *dev)
 {
+	struct power_supply *psy = container_of(dev, struct power_supply, dev);
 	pr_debug("device: '%s': %s\n", dev_name(dev), __func__);
-	kfree(dev);
+	kfree(psy);
 }
 
 int power_supply_reg_notifier(struct notifier_block *nb)
@@ -400,7 +500,7 @@ static int power_supply_read_temp(struct thermal_zone_device *tzd,
 
 	WARN_ON(tzd == NULL);
 	psy = tzd->devdata;
-	ret = psy->get_property(psy, POWER_SUPPLY_PROP_TEMP, &val);
+	ret = psy->desc->get_property(psy, POWER_SUPPLY_PROP_TEMP, &val);
 
 	/* Convert tenths of degree Celsius to milli degree Celsius. */
 	if (!ret)
@@ -417,14 +517,14 @@ static int psy_register_thermal(struct power_supply *psy)
 {
 	int i;
 
-	if (psy->no_thermal)
+	if (psy->desc->no_thermal)
 		return 0;
 
 	/* Register battery zone device psy reports temperature */
-	for (i = 0; i < psy->num_properties; i++) {
-		if (psy->properties[i] == POWER_SUPPLY_PROP_TEMP) {
-			psy->tzd = thermal_zone_device_register(psy->name, 0, 0,
-					psy, &psy_tzd_ops, NULL, 0, 0);
+	for (i = 0; i < psy->desc->num_properties; i++) {
+		if (psy->desc->properties[i] == POWER_SUPPLY_PROP_TEMP) {
+			psy->tzd = thermal_zone_device_register(psy->desc->name,
+					0, 0, psy, &psy_tzd_ops, NULL, 0, 0);
 			return PTR_ERR_OR_ZERO(psy->tzd);
 		}
 	}
@@ -447,7 +547,7 @@ static int ps_get_max_charge_cntl_limit(struct thermal_cooling_device *tcd,
 	int ret;
 
 	psy = tcd->devdata;
-	ret = psy->get_property(psy,
+	ret = psy->desc->get_property(psy,
 		POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT_MAX, &val);
 	if (!ret)
 		*state = val.intval;
@@ -463,7 +563,7 @@ static int ps_get_cur_chrage_cntl_limit(struct thermal_cooling_device *tcd,
 	int ret;
 
 	psy = tcd->devdata;
-	ret = psy->get_property(psy,
+	ret = psy->desc->get_property(psy,
 		POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT, &val);
 	if (!ret)
 		*state = val.intval;
@@ -480,7 +580,7 @@ static int ps_set_cur_charge_cntl_limit(struct thermal_cooling_device *tcd,
 
 	psy = tcd->devdata;
 	val.intval = state;
-	ret = psy->set_property(psy,
+	ret = psy->desc->set_property(psy,
 		POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT, &val);
 
 	return ret;
@@ -497,11 +597,11 @@ static int psy_register_cooler(struct power_supply *psy)
 	int i;
 
 	/* Register for cooling device if psy can control charging */
-	for (i = 0; i < psy->num_properties; i++) {
-		if (psy->properties[i] ==
+	for (i = 0; i < psy->desc->num_properties; i++) {
+		if (psy->desc->properties[i] ==
 				POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT) {
 			psy->tcd = thermal_cooling_device_register(
-							(char *)psy->name,
+							(char *)psy->desc->name,
 							psy, &psy_tcd_ops);
 			return PTR_ERR_OR_ZERO(psy->tcd);
 		}
@@ -535,15 +635,21 @@ static void psy_unregister_cooler(struct power_supply *psy)
 }
 #endif
 
-static int __power_supply_register(struct device *parent,
-				   struct power_supply *psy, bool ws)
+static struct power_supply *__must_check
+__power_supply_register(struct device *parent,
+				   const struct power_supply_desc *desc,
+				   const struct power_supply_config *cfg,
+				   bool ws)
 {
 	struct device *dev;
+	struct power_supply *psy;
 	int rc;
 
-	dev = kzalloc(sizeof(*dev), GFP_KERNEL);
-	if (!dev)
-		return -ENOMEM;
+	psy = kzalloc(sizeof(*psy), GFP_KERNEL);
+	if (!psy)
+		return ERR_PTR(-ENOMEM);
+
+	dev = &psy->dev;
 
 	device_initialize(dev);
 
@@ -552,9 +658,16 @@ static int __power_supply_register(struct device *parent,
 	dev->parent = parent;
 	dev->release = power_supply_dev_release;
 	dev_set_drvdata(dev, psy);
-	psy->dev = dev;
+	psy->desc = desc;
+	atomic_inc(&psy->use_cnt);
+	if (cfg) {
+		psy->drv_data = cfg->drv_data;
+		psy->of_node = cfg->of_node;
+		psy->supplied_to = cfg->supplied_to;
+		psy->num_supplicants = cfg->num_supplicants;
+	}
 
-	rc = dev_set_name(dev, "%s", psy->name);
+	rc = dev_set_name(dev, "%s", desc->name);
 	if (rc)
 		goto dev_set_name_failed;
 
@@ -589,7 +702,7 @@ static int __power_supply_register(struct device *parent,
 
 	power_supply_changed(psy);
 
-	return 0;
+	return psy;
 
 create_triggers_failed:
 	psy_unregister_cooler(psy);
@@ -602,33 +715,155 @@ wakeup_init_failed:
 check_supplies_failed:
 dev_set_name_failed:
 	put_device(dev);
-	return rc;
+	return ERR_PTR(rc);
 }
 
-int power_supply_register(struct device *parent, struct power_supply *psy)
+/**
+ * power_supply_register() - Register new power supply
+ * @parent:	Device to be a parent of power supply's device
+ * @desc:	Description of power supply, must be valid through whole
+ *		lifetime of this power supply
+ * @cfg:	Run-time specific configuration accessed during registering,
+ *		may be NULL
+ *
+ * Return: A pointer to newly allocated power_supply on success
+ * or ERR_PTR otherwise.
+ * Use power_supply_unregister() on returned power_supply pointer to release
+ * resources.
+ */
+struct power_supply *__must_check power_supply_register(struct device *parent,
+		const struct power_supply_desc *desc,
+		const struct power_supply_config *cfg)
 {
-	return __power_supply_register(parent, psy, true);
+	return __power_supply_register(parent, desc, cfg, true);
 }
 EXPORT_SYMBOL_GPL(power_supply_register);
 
-int power_supply_register_no_ws(struct device *parent, struct power_supply *psy)
+/**
+ * power_supply_register() - Register new non-waking-source power supply
+ * @parent:	Device to be a parent of power supply's device
+ * @desc:	Description of power supply, must be valid through whole
+ *		lifetime of this power supply
+ * @cfg:	Run-time specific configuration accessed during registering,
+ *		may be NULL
+ *
+ * Return: A pointer to newly allocated power_supply on success
+ * or ERR_PTR otherwise.
+ * Use power_supply_unregister() on returned power_supply pointer to release
+ * resources.
+ */
+struct power_supply *__must_check
+power_supply_register_no_ws(struct device *parent,
+		const struct power_supply_desc *desc,
+		const struct power_supply_config *cfg)
 {
-	return __power_supply_register(parent, psy, false);
+	return __power_supply_register(parent, desc, cfg, false);
 }
 EXPORT_SYMBOL_GPL(power_supply_register_no_ws);
 
+static void devm_power_supply_release(struct device *dev, void *res)
+{
+	struct power_supply **psy = res;
+
+	power_supply_unregister(*psy);
+}
+
+/**
+ * power_supply_register() - Register managed power supply
+ * @parent:	Device to be a parent of power supply's device
+ * @desc:	Description of power supply, must be valid through whole
+ *		lifetime of this power supply
+ * @cfg:	Run-time specific configuration accessed during registering,
+ *		may be NULL
+ *
+ * Return: A pointer to newly allocated power_supply on success
+ * or ERR_PTR otherwise.
+ * The returned power_supply pointer will be automatically unregistered
+ * on driver detach.
+ */
+struct power_supply *__must_check
+devm_power_supply_register(struct device *parent,
+		const struct power_supply_desc *desc,
+		const struct power_supply_config *cfg)
+{
+	struct power_supply **ptr, *psy;
+
+	ptr = devres_alloc(devm_power_supply_release, sizeof(*ptr), GFP_KERNEL);
+
+	if (!ptr)
+		return ERR_PTR(-ENOMEM);
+	psy = __power_supply_register(parent, desc, cfg, true);
+	if (IS_ERR(psy)) {
+		devres_free(ptr);
+	} else {
+		*ptr = psy;
+		devres_add(parent, ptr);
+	}
+	return psy;
+}
+EXPORT_SYMBOL_GPL(devm_power_supply_register);
+
+/**
+ * power_supply_register() - Register managed non-waking-source power supply
+ * @parent:	Device to be a parent of power supply's device
+ * @desc:	Description of power supply, must be valid through whole
+ *		lifetime of this power supply
+ * @cfg:	Run-time specific configuration accessed during registering,
+ *		may be NULL
+ *
+ * Return: A pointer to newly allocated power_supply on success
+ * or ERR_PTR otherwise.
+ * The returned power_supply pointer will be automatically unregistered
+ * on driver detach.
+ */
+struct power_supply *__must_check
+devm_power_supply_register_no_ws(struct device *parent,
+		const struct power_supply_desc *desc,
+		const struct power_supply_config *cfg)
+{
+	struct power_supply **ptr, *psy;
+
+	ptr = devres_alloc(devm_power_supply_release, sizeof(*ptr), GFP_KERNEL);
+
+	if (!ptr)
+		return ERR_PTR(-ENOMEM);
+	psy = __power_supply_register(parent, desc, cfg, false);
+	if (IS_ERR(psy)) {
+		devres_free(ptr);
+	} else {
+		*ptr = psy;
+		devres_add(parent, ptr);
+	}
+	return psy;
+}
+EXPORT_SYMBOL_GPL(devm_power_supply_register_no_ws);
+
+/**
+ * power_supply_unregister() - Remove this power supply from system
+ * @psy:	Pointer to power supply to unregister
+ *
+ * Remove this power supply from the system. The resources of power supply
+ * will be freed here or on last power_supply_put() call.
+ */
 void power_supply_unregister(struct power_supply *psy)
 {
+	WARN_ON(atomic_dec_return(&psy->use_cnt));
 	cancel_work_sync(&psy->changed_work);
-	sysfs_remove_link(&psy->dev->kobj, "powers");
+	sysfs_remove_link(&psy->dev.kobj, "powers");
 	power_supply_remove_triggers(psy);
 	psy_unregister_cooler(psy);
 	psy_unregister_thermal(psy);
-	device_init_wakeup(psy->dev, false);
-	device_unregister(psy->dev);
+	device_init_wakeup(&psy->dev, false);
+	device_unregister(&psy->dev);
 }
 EXPORT_SYMBOL_GPL(power_supply_unregister);
 
+void *power_supply_get_drvdata(struct power_supply *psy)
+{
+	return psy->drv_data;
+}
+EXPORT_SYMBOL_GPL(power_supply_get_drvdata);
+
 static int __init power_supply_class_init(void)
 {
 	power_supply_class = class_create(THIS_MODULE, "power_supply");
diff --git a/drivers/power/power_supply_leds.c b/drivers/power/power_supply_leds.c
index effa093..2d41a43 100644
--- a/drivers/power/power_supply_leds.c
+++ b/drivers/power/power_supply_leds.c
@@ -25,10 +25,10 @@ static void power_supply_update_bat_leds(struct power_supply *psy)
 	unsigned long delay_on = 0;
 	unsigned long delay_off = 0;
 
-	if (psy->get_property(psy, POWER_SUPPLY_PROP_STATUS, &status))
+	if (psy->desc->get_property(psy, POWER_SUPPLY_PROP_STATUS, &status))
 		return;
 
-	dev_dbg(psy->dev, "%s %d\n", __func__, status.intval);
+	dev_dbg(&psy->dev, "%s %d\n", __func__, status.intval);
 
 	switch (status.intval) {
 	case POWER_SUPPLY_STATUS_FULL:
@@ -58,21 +58,21 @@ static void power_supply_update_bat_leds(struct power_supply *psy)
 static int power_supply_create_bat_triggers(struct power_supply *psy)
 {
 	psy->charging_full_trig_name = kasprintf(GFP_KERNEL,
-					"%s-charging-or-full", psy->name);
+					"%s-charging-or-full", psy->desc->name);
 	if (!psy->charging_full_trig_name)
 		goto charging_full_failed;
 
 	psy->charging_trig_name = kasprintf(GFP_KERNEL,
-					"%s-charging", psy->name);
+					"%s-charging", psy->desc->name);
 	if (!psy->charging_trig_name)
 		goto charging_failed;
 
-	psy->full_trig_name = kasprintf(GFP_KERNEL, "%s-full", psy->name);
+	psy->full_trig_name = kasprintf(GFP_KERNEL, "%s-full", psy->desc->name);
 	if (!psy->full_trig_name)
 		goto full_failed;
 
 	psy->charging_blink_full_solid_trig_name = kasprintf(GFP_KERNEL,
-		"%s-charging-blink-full-solid", psy->name);
+		"%s-charging-blink-full-solid", psy->desc->name);
 	if (!psy->charging_blink_full_solid_trig_name)
 		goto charging_blink_full_solid_failed;
 
@@ -115,10 +115,10 @@ static void power_supply_update_gen_leds(struct power_supply *psy)
 {
 	union power_supply_propval online;
 
-	if (psy->get_property(psy, POWER_SUPPLY_PROP_ONLINE, &online))
+	if (psy->desc->get_property(psy, POWER_SUPPLY_PROP_ONLINE, &online))
 		return;
 
-	dev_dbg(psy->dev, "%s %d\n", __func__, online.intval);
+	dev_dbg(&psy->dev, "%s %d\n", __func__, online.intval);
 
 	if (online.intval)
 		led_trigger_event(psy->online_trig, LED_FULL);
@@ -128,7 +128,8 @@ static void power_supply_update_gen_leds(struct power_supply *psy)
 
 static int power_supply_create_gen_triggers(struct power_supply *psy)
 {
-	psy->online_trig_name = kasprintf(GFP_KERNEL, "%s-online", psy->name);
+	psy->online_trig_name = kasprintf(GFP_KERNEL, "%s-online",
+					  psy->desc->name);
 	if (!psy->online_trig_name)
 		return -ENOMEM;
 
@@ -147,7 +148,7 @@ static void power_supply_remove_gen_triggers(struct power_supply *psy)
 
 void power_supply_update_leds(struct power_supply *psy)
 {
-	if (psy->type == POWER_SUPPLY_TYPE_BATTERY)
+	if (psy->desc->type == POWER_SUPPLY_TYPE_BATTERY)
 		power_supply_update_bat_leds(psy);
 	else
 		power_supply_update_gen_leds(psy);
@@ -155,14 +156,14 @@ void power_supply_update_leds(struct power_supply *psy)
 
 int power_supply_create_triggers(struct power_supply *psy)
 {
-	if (psy->type == POWER_SUPPLY_TYPE_BATTERY)
+	if (psy->desc->type == POWER_SUPPLY_TYPE_BATTERY)
 		return power_supply_create_bat_triggers(psy);
 	return power_supply_create_gen_triggers(psy);
 }
 
 void power_supply_remove_triggers(struct power_supply *psy)
 {
-	if (psy->type == POWER_SUPPLY_TYPE_BATTERY)
+	if (psy->desc->type == POWER_SUPPLY_TYPE_BATTERY)
 		power_supply_remove_bat_triggers(psy);
 	else
 		power_supply_remove_gen_triggers(psy);
diff --git a/drivers/power/power_supply_sysfs.c b/drivers/power/power_supply_sysfs.c
index 62653f5..9134e3d 100644
--- a/drivers/power/power_supply_sysfs.c
+++ b/drivers/power/power_supply_sysfs.c
@@ -74,9 +74,9 @@ static ssize_t power_supply_show_property(struct device *dev,
 	union power_supply_propval value;
 
 	if (off == POWER_SUPPLY_PROP_TYPE) {
-		value.intval = psy->type;
+		value.intval = psy->desc->type;
 	} else {
-		ret = psy->get_property(psy, off, &value);
+		ret = power_supply_get_property(psy, off, &value);
 
 		if (ret < 0) {
 			if (ret == -ENODATA)
@@ -125,7 +125,7 @@ static ssize_t power_supply_store_property(struct device *dev,
 
 	value.intval = long_val;
 
-	ret = psy->set_property(psy, off, &value);
+	ret = psy->desc->set_property(psy, off, &value);
 	if (ret < 0)
 		return ret;
 
@@ -218,12 +218,12 @@ static umode_t power_supply_attr_is_visible(struct kobject *kobj,
 	if (attrno == POWER_SUPPLY_PROP_TYPE)
 		return mode;
 
-	for (i = 0; i < psy->num_properties; i++) {
-		int property = psy->properties[i];
+	for (i = 0; i < psy->desc->num_properties; i++) {
+		int property = psy->desc->properties[i];
 
 		if (property == attrno) {
-			if (psy->property_is_writeable &&
-			    psy->property_is_writeable(psy, property) > 0)
+			if (psy->desc->property_is_writeable &&
+			    power_supply_property_is_writeable(psy, property) > 0)
 				mode |= S_IWUSR;
 
 			return mode;
@@ -279,14 +279,14 @@ int power_supply_uevent(struct device *dev, struct kobj_uevent_env *env)
 
 	dev_dbg(dev, "uevent\n");
 
-	if (!psy || !psy->dev) {
+	if (!psy || !psy->desc) {
 		dev_dbg(dev, "No power supply yet\n");
 		return ret;
 	}
 
-	dev_dbg(dev, "POWER_SUPPLY_NAME=%s\n", psy->name);
+	dev_dbg(dev, "POWER_SUPPLY_NAME=%s\n", psy->desc->name);
 
-	ret = add_uevent_var(env, "POWER_SUPPLY_NAME=%s", psy->name);
+	ret = add_uevent_var(env, "POWER_SUPPLY_NAME=%s", psy->desc->name);
 	if (ret)
 		return ret;
 
@@ -294,11 +294,11 @@ int power_supply_uevent(struct device *dev, struct kobj_uevent_env *env)
 	if (!prop_buf)
 		return -ENOMEM;
 
-	for (j = 0; j < psy->num_properties; j++) {
+	for (j = 0; j < psy->desc->num_properties; j++) {
 		struct device_attribute *attr;
 		char *line;
 
-		attr = &power_supply_attrs[psy->properties[j]];
+		attr = &power_supply_attrs[psy->desc->properties[j]];
 
 		ret = power_supply_show_property(dev, attr, prop_buf);
 		if (ret == -ENODEV || ret == -ENODATA) {
diff --git a/drivers/power/reset/Kconfig b/drivers/power/reset/Kconfig
index 27f6646..aad9c33 100644
--- a/drivers/power/reset/Kconfig
+++ b/drivers/power/reset/Kconfig
@@ -151,9 +151,17 @@ config POWER_RESET_SYSCON
 	help
 	  Reboot support for generic SYSCON mapped register reset.
 
+config POWER_RESET_SYSCON_POWEROFF
+	bool "Generic SYSCON regmap poweroff driver"
+	depends on OF
+	select MFD_SYSCON
+	help
+	  Poweroff support for generic SYSCON mapped register poweroff.
+
 config POWER_RESET_RMOBILE
 	tristate "Renesas R-Mobile reset driver"
 	depends on ARCH_RMOBILE || COMPILE_TEST
+	depends on HAS_IOMEM
 	help
 	  Reboot support for Renesas R-Mobile and SH-Mobile SoCs.
 
diff --git a/drivers/power/reset/Makefile b/drivers/power/reset/Makefile
index 11de15b..dbe06c3 100644
--- a/drivers/power/reset/Makefile
+++ b/drivers/power/reset/Makefile
@@ -17,4 +17,5 @@ obj-$(CONFIG_POWER_RESET_VEXPRESS) += vexpress-poweroff.o
 obj-$(CONFIG_POWER_RESET_XGENE) += xgene-reboot.o
 obj-$(CONFIG_POWER_RESET_KEYSTONE) += keystone-reset.o
 obj-$(CONFIG_POWER_RESET_SYSCON) += syscon-reboot.o
+obj-$(CONFIG_POWER_RESET_SYSCON_POWEROFF) += syscon-poweroff.o
 obj-$(CONFIG_POWER_RESET_RMOBILE) += rmobile-reset.o
diff --git a/drivers/power/reset/at91-poweroff.c b/drivers/power/reset/at91-poweroff.c
index 4b72ea5..9847cfb 100644
--- a/drivers/power/reset/at91-poweroff.c
+++ b/drivers/power/reset/at91-poweroff.c
@@ -140,7 +140,7 @@ static int at91_poweroff_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static struct of_device_id at91_poweroff_of_match[] = {
+static const struct of_device_id at91_poweroff_of_match[] = {
 	{ .compatible = "atmel,at91sam9260-shdwc", },
 	{ .compatible = "atmel,at91sam9rl-shdwc", },
 	{ .compatible = "atmel,at91sam9x5-shdwc", },
diff --git a/drivers/power/reset/at91-reset.c b/drivers/power/reset/at91-reset.c
index 13584e2..01c7055 100644
--- a/drivers/power/reset/at91-reset.c
+++ b/drivers/power/reset/at91-reset.c
@@ -73,8 +73,8 @@ static int at91sam9260_restart(struct notifier_block *this, unsigned long mode,
 		: "r" (at91_ramc_base[0]),
 		  "r" (at91_rstc_base),
 		  "r" (1),
-		  "r" (AT91_SDRAMC_LPCB_POWER_DOWN),
-		  "r" (AT91_RSTC_KEY | AT91_RSTC_PERRST | AT91_RSTC_PROCRST));
+		  "r" cpu_to_le32(AT91_SDRAMC_LPCB_POWER_DOWN),
+		  "r" cpu_to_le32(AT91_RSTC_KEY | AT91_RSTC_PERRST | AT91_RSTC_PROCRST));
 
 	return NOTIFY_DONE;
 }
@@ -116,8 +116,8 @@ static int at91sam9g45_restart(struct notifier_block *this, unsigned long mode,
 		  "r" (at91_ramc_base[1]),
 		  "r" (at91_rstc_base),
 		  "r" (1),
-		  "r" (AT91_DDRSDRC_LPCB_POWER_DOWN),
-		  "r" (AT91_RSTC_KEY | AT91_RSTC_PERRST | AT91_RSTC_PROCRST)
+		  "r" cpu_to_le32(AT91_DDRSDRC_LPCB_POWER_DOWN),
+		  "r" cpu_to_le32(AT91_RSTC_KEY | AT91_RSTC_PERRST | AT91_RSTC_PROCRST)
 		: "r0");
 
 	return NOTIFY_DONE;
@@ -152,14 +152,14 @@ static void __init at91_reset_status(struct platform_device *pdev)
 	pr_info("AT91: Starting after %s\n", reason);
 }
 
-static struct of_device_id at91_ramc_of_match[] = {
+static const struct of_device_id at91_ramc_of_match[] = {
 	{ .compatible = "atmel,at91sam9260-sdramc", },
 	{ .compatible = "atmel,at91sam9g45-ddramc", },
 	{ .compatible = "atmel,sama5d3-ddramc", },
 	{ /* sentinel */ }
 };
 
-static struct of_device_id at91_reset_of_match[] = {
+static const struct of_device_id at91_reset_of_match[] = {
 	{ .compatible = "atmel,at91sam9260-rstc", .data = at91sam9260_restart },
 	{ .compatible = "atmel,at91sam9g45-rstc", .data = at91sam9g45_restart },
 	{ /* sentinel */ }
diff --git a/drivers/power/reset/hisi-reboot.c b/drivers/power/reset/hisi-reboot.c
index 5385460..9ab7f56 100644
--- a/drivers/power/reset/hisi-reboot.c
+++ b/drivers/power/reset/hisi-reboot.c
@@ -64,7 +64,7 @@ static int hisi_reboot_probe(struct platform_device *pdev)
 	return err;
 }
 
-static struct of_device_id hisi_reboot_of_match[] = {
+static const struct of_device_id hisi_reboot_of_match[] = {
 	{ .compatible = "hisilicon,sysctrl" },
 	{}
 };
diff --git a/drivers/power/reset/keystone-reset.c b/drivers/power/reset/keystone-reset.c
index faedf16..c70f1bf 100644
--- a/drivers/power/reset/keystone-reset.c
+++ b/drivers/power/reset/keystone-reset.c
@@ -70,7 +70,7 @@ static struct notifier_block rsctrl_restart_nb = {
 	.priority = 128,
 };
 
-static struct of_device_id rsctrl_of_match[] = {
+static const struct of_device_id rsctrl_of_match[] = {
 	{.compatible = "ti,keystone-reset", },
 	{},
 };
diff --git a/drivers/power/reset/st-poweroff.c b/drivers/power/reset/st-poweroff.c
index 27383de..a488877 100644
--- a/drivers/power/reset/st-poweroff.c
+++ b/drivers/power/reset/st-poweroff.c
@@ -97,7 +97,7 @@ static struct notifier_block st_restart_nb = {
 	.priority = 192,
 };
 
-static struct of_device_id st_reset_of_match[] = {
+static const struct of_device_id st_reset_of_match[] = {
 	{
 		.compatible = "st,stih415-restart",
 		.data = (void *)&stih415_reset,
diff --git a/drivers/power/reset/syscon-poweroff.c b/drivers/power/reset/syscon-poweroff.c
new file mode 100644
index 0000000..5560b0d
--- /dev/null
+++ b/drivers/power/reset/syscon-poweroff.c
@@ -0,0 +1,102 @@
+/*
+ * Generic Syscon Poweroff Driver
+ *
+ * Copyright (c) 2015, National Instruments Corp.
+ * Author: Moritz Fischer <moritz.fischer@ettus.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/kallsyms.h>
+#include <linux/delay.h>
+#include <linux/io.h>
+#include <linux/notifier.h>
+#include <linux/mfd/syscon.h>
+#include <linux/of_address.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+#include <linux/pm.h>
+#include <linux/regmap.h>
+
+static struct regmap *map;
+static u32 offset;
+static u32 mask;
+
+void syscon_poweroff(void)
+{
+	/* Issue the poweroff */
+	regmap_write(map, offset, mask);
+
+	mdelay(1000);
+
+	pr_emerg("Unable to poweroff system\n");
+}
+
+static int syscon_poweroff_probe(struct platform_device *pdev)
+{
+	char symname[KSYM_NAME_LEN];
+
+	map = syscon_regmap_lookup_by_phandle(pdev->dev.of_node, "regmap");
+	if (IS_ERR(map)) {
+		dev_err(&pdev->dev, "unable to get syscon");
+		return PTR_ERR(map);
+	}
+
+	if (of_property_read_u32(pdev->dev.of_node, "offset", &offset)) {
+		dev_err(&pdev->dev, "unable to read 'offset'");
+		return -EINVAL;
+	}
+
+	if (of_property_read_u32(pdev->dev.of_node, "mask", &mask)) {
+		dev_err(&pdev->dev, "unable to read 'mask'");
+		return -EINVAL;
+	}
+
+	if (pm_power_off) {
+		lookup_symbol_name((ulong)pm_power_off, symname);
+		dev_err(&pdev->dev,
+		"pm_power_off already claimed %p %s",
+		pm_power_off, symname);
+		return -EBUSY;
+	}
+
+	pm_power_off = syscon_poweroff;
+
+	return 0;
+}
+
+static int syscon_poweroff_remove(struct platform_device *pdev)
+{
+	if (pm_power_off == syscon_poweroff)
+		pm_power_off = NULL;
+
+	return 0;
+}
+
+static const struct of_device_id syscon_poweroff_of_match[] = {
+	{ .compatible = "syscon-poweroff" },
+	{}
+};
+
+static struct platform_driver syscon_poweroff_driver = {
+	.probe = syscon_poweroff_probe,
+	.remove = syscon_poweroff_remove,
+	.driver = {
+		.name = "syscon-poweroff",
+		.of_match_table = syscon_poweroff_of_match,
+	},
+};
+
+static int __init syscon_poweroff_register(void)
+{
+	return platform_driver_register(&syscon_poweroff_driver);
+}
+device_initcall(syscon_poweroff_register);
diff --git a/drivers/power/reset/syscon-reboot.c b/drivers/power/reset/syscon-reboot.c
index c4049f4..d3c7d24 100644
--- a/drivers/power/reset/syscon-reboot.c
+++ b/drivers/power/reset/syscon-reboot.c
@@ -76,7 +76,7 @@ static int syscon_reboot_probe(struct platform_device *pdev)
 	return err;
 }
 
-static struct of_device_id syscon_reboot_of_match[] = {
+static const struct of_device_id syscon_reboot_of_match[] = {
 	{ .compatible = "syscon-reboot" },
 	{}
 };
diff --git a/drivers/power/reset/vexpress-poweroff.c b/drivers/power/reset/vexpress-poweroff.c
index be12d9b..6a9bf70 100644
--- a/drivers/power/reset/vexpress-poweroff.c
+++ b/drivers/power/reset/vexpress-poweroff.c
@@ -80,7 +80,7 @@ DEVICE_ATTR(active, S_IRUGO | S_IWUSR, vexpress_reset_active_show,
 
 enum vexpress_reset_func { FUNC_RESET, FUNC_SHUTDOWN, FUNC_REBOOT };
 
-static struct of_device_id vexpress_reset_of_match[] = {
+static const struct of_device_id vexpress_reset_of_match[] = {
 	{
 		.compatible = "arm,vexpress-reset",
 		.data = (void *)FUNC_RESET,
diff --git a/drivers/power/reset/xgene-reboot.c b/drivers/power/reset/xgene-reboot.c
index b0e5002..f07e93c 100644
--- a/drivers/power/reset/xgene-reboot.c
+++ b/drivers/power/reset/xgene-reboot.c
@@ -87,7 +87,7 @@ static int xgene_reboot_probe(struct platform_device *pdev)
 	return err;
 }
 
-static struct of_device_id xgene_reboot_of_match[] = {
+static const struct of_device_id xgene_reboot_of_match[] = {
 	{ .compatible = "apm,xgene-reboot" },
 	{}
 };
diff --git a/drivers/power/rt5033_battery.c b/drivers/power/rt5033_battery.c
index 7b898f4..a7a6877 100644
--- a/drivers/power/rt5033_battery.c
+++ b/drivers/power/rt5033_battery.c
@@ -72,8 +72,7 @@ static int rt5033_battery_get_property(struct power_supply *psy,
 		enum power_supply_property psp,
 		union power_supply_propval *val)
 {
-	struct rt5033_battery *battery = container_of(psy,
-				struct rt5033_battery, psy);
+	struct rt5033_battery *battery = power_supply_get_drvdata(psy);
 
 	switch (psp) {
 	case POWER_SUPPLY_PROP_VOLTAGE_NOW:
@@ -102,16 +101,25 @@ static enum power_supply_property rt5033_battery_props[] = {
 	POWER_SUPPLY_PROP_CAPACITY,
 };
 
-static struct regmap_config rt5033_battery_regmap_config = {
+static const struct regmap_config rt5033_battery_regmap_config = {
 	.reg_bits	= 8,
 	.val_bits	= 8,
 	.max_register	= RT5033_FUEL_REG_END,
 };
 
+static const struct power_supply_desc rt5033_battery_desc = {
+	.name		= "rt5033-battery",
+	.type		= POWER_SUPPLY_TYPE_BATTERY,
+	.get_property	= rt5033_battery_get_property,
+	.properties	= rt5033_battery_props,
+	.num_properties	= ARRAY_SIZE(rt5033_battery_props),
+};
+
 static int rt5033_battery_probe(struct i2c_client *client,
 		const struct i2c_device_id *id)
 {
 	struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);
+	struct power_supply_config psy_cfg = {};
 	struct rt5033_battery *battery;
 	u32 ret;
 
@@ -131,16 +139,13 @@ static int rt5033_battery_probe(struct i2c_client *client,
 	}
 
 	i2c_set_clientdata(client, battery);
+	psy_cfg.drv_data = battery;
 
-	battery->psy.name		= "rt5033-battery";
-	battery->psy.type		= POWER_SUPPLY_TYPE_BATTERY;
-	battery->psy.get_property	= rt5033_battery_get_property;
-	battery->psy.properties		= rt5033_battery_props;
-	battery->psy.num_properties	= ARRAY_SIZE(rt5033_battery_props);
-
-	ret = power_supply_register(&client->dev, &battery->psy);
-	if (ret) {
+	battery->psy = power_supply_register(&client->dev,
+					     &rt5033_battery_desc, &psy_cfg);
+	if (IS_ERR(battery->psy)) {
 		dev_err(&client->dev, "Failed to register power supply\n");
+		ret = PTR_ERR(battery->psy);
 		return ret;
 	}
 
@@ -151,7 +156,7 @@ static int rt5033_battery_remove(struct i2c_client *client)
 {
 	struct rt5033_battery *battery = i2c_get_clientdata(client);
 
-	power_supply_unregister(&battery->psy);
+	power_supply_unregister(battery->psy);
 
 	return 0;
 }
diff --git a/drivers/power/rx51_battery.c b/drivers/power/rx51_battery.c
index a01aacb..ac62069 100644
--- a/drivers/power/rx51_battery.c
+++ b/drivers/power/rx51_battery.c
@@ -29,7 +29,8 @@
 
 struct rx51_device_info {
 	struct device *dev;
-	struct power_supply bat;
+	struct power_supply *bat;
+	struct power_supply_desc bat_desc;
 	struct iio_channel *channel_temp;
 	struct iio_channel *channel_bsi;
 	struct iio_channel *channel_vbat;
@@ -161,8 +162,7 @@ static int rx51_battery_get_property(struct power_supply *psy,
 					enum power_supply_property psp,
 					union power_supply_propval *val)
 {
-	struct rx51_device_info *di = container_of((psy),
-				struct rx51_device_info, bat);
+	struct rx51_device_info *di = power_supply_get_drvdata(psy);
 
 	switch (psp) {
 	case POWER_SUPPLY_PROP_TECHNOLOGY:
@@ -204,6 +204,7 @@ static enum power_supply_property rx51_battery_props[] = {
 
 static int rx51_battery_probe(struct platform_device *pdev)
 {
+	struct power_supply_config psy_cfg = {};
 	struct rx51_device_info *di;
 	int ret;
 
@@ -214,11 +215,13 @@ static int rx51_battery_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, di);
 
 	di->dev = &pdev->dev;
-	di->bat.name = dev_name(&pdev->dev);
-	di->bat.type = POWER_SUPPLY_TYPE_BATTERY;
-	di->bat.properties = rx51_battery_props;
-	di->bat.num_properties = ARRAY_SIZE(rx51_battery_props);
-	di->bat.get_property = rx51_battery_get_property;
+	di->bat_desc.name = dev_name(&pdev->dev);
+	di->bat_desc.type = POWER_SUPPLY_TYPE_BATTERY;
+	di->bat_desc.properties = rx51_battery_props;
+	di->bat_desc.num_properties = ARRAY_SIZE(rx51_battery_props);
+	di->bat_desc.get_property = rx51_battery_get_property;
+
+	psy_cfg.drv_data = di;
 
 	di->channel_temp = iio_channel_get(di->dev, "temp");
 	if (IS_ERR(di->channel_temp)) {
@@ -238,9 +241,11 @@ static int rx51_battery_probe(struct platform_device *pdev)
 		goto error_channel_bsi;
 	}
 
-	ret = power_supply_register(di->dev, &di->bat);
-	if (ret)
+	di->bat = power_supply_register(di->dev, &di->bat_desc, &psy_cfg);
+	if (IS_ERR(di->bat)) {
+		ret = PTR_ERR(di->bat);
 		goto error_channel_vbat;
+	}
 
 	return 0;
 
@@ -259,7 +264,7 @@ static int rx51_battery_remove(struct platform_device *pdev)
 {
 	struct rx51_device_info *di = platform_get_drvdata(pdev);
 
-	power_supply_unregister(&di->bat);
+	power_supply_unregister(di->bat);
 
 	iio_channel_release(di->channel_vbat);
 	iio_channel_release(di->channel_bsi);
diff --git a/drivers/power/s3c_adc_battery.c b/drivers/power/s3c_adc_battery.c
index 5948ce0..0ffe5cd 100644
--- a/drivers/power/s3c_adc_battery.c
+++ b/drivers/power/s3c_adc_battery.c
@@ -28,7 +28,7 @@
 #define JITTER_DELAY			500 /* ms */
 
 struct s3c_adc_bat {
-	struct power_supply		psy;
+	struct power_supply		*psy;
 	struct s3c_adc_client		*client;
 	struct s3c_adc_bat_pdata	*pdata;
 	int				volt_value;
@@ -73,10 +73,10 @@ static int s3c_adc_backup_bat_get_property(struct power_supply *psy,
 				enum power_supply_property psp,
 				union power_supply_propval *val)
 {
-	struct s3c_adc_bat *bat = container_of(psy, struct s3c_adc_bat, psy);
+	struct s3c_adc_bat *bat = power_supply_get_drvdata(psy);
 
 	if (!bat) {
-		dev_err(psy->dev, "%s: no battery infos ?!\n", __func__);
+		dev_err(&psy->dev, "%s: no battery infos ?!\n", __func__);
 		return -EINVAL;
 	}
 
@@ -105,17 +105,17 @@ static int s3c_adc_backup_bat_get_property(struct power_supply *psy,
 	}
 }
 
-static struct s3c_adc_bat backup_bat = {
-	.psy = {
-		.name		= "backup-battery",
-		.type		= POWER_SUPPLY_TYPE_BATTERY,
-		.properties	= s3c_adc_backup_bat_props,
-		.num_properties = ARRAY_SIZE(s3c_adc_backup_bat_props),
-		.get_property	= s3c_adc_backup_bat_get_property,
-		.use_for_apm	= 1,
-	},
+static const struct power_supply_desc backup_bat_desc = {
+	.name		= "backup-battery",
+	.type		= POWER_SUPPLY_TYPE_BATTERY,
+	.properties	= s3c_adc_backup_bat_props,
+	.num_properties = ARRAY_SIZE(s3c_adc_backup_bat_props),
+	.get_property	= s3c_adc_backup_bat_get_property,
+	.use_for_apm	= 1,
 };
 
+static struct s3c_adc_bat backup_bat;
+
 static enum power_supply_property s3c_adc_main_bat_props[] = {
 	POWER_SUPPLY_PROP_STATUS,
 	POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
@@ -141,7 +141,7 @@ static int s3c_adc_bat_get_property(struct power_supply *psy,
 				    enum power_supply_property psp,
 				    union power_supply_propval *val)
 {
-	struct s3c_adc_bat *bat = container_of(psy, struct s3c_adc_bat, psy);
+	struct s3c_adc_bat *bat = power_supply_get_drvdata(psy);
 
 	int new_level;
 	int full_volt;
@@ -149,7 +149,7 @@ static int s3c_adc_bat_get_property(struct power_supply *psy,
 	unsigned int lut_size;
 
 	if (!bat) {
-		dev_err(psy->dev, "no battery infos ?!\n");
+		dev_err(&psy->dev, "no battery infos ?!\n");
 		return -EINVAL;
 	}
 
@@ -232,18 +232,18 @@ static int s3c_adc_bat_get_property(struct power_supply *psy,
 	}
 }
 
-static struct s3c_adc_bat main_bat = {
-	.psy = {
-		.name			= "main-battery",
-		.type			= POWER_SUPPLY_TYPE_BATTERY,
-		.properties		= s3c_adc_main_bat_props,
-		.num_properties		= ARRAY_SIZE(s3c_adc_main_bat_props),
-		.get_property		= s3c_adc_bat_get_property,
-		.external_power_changed = s3c_adc_bat_ext_power_changed,
-		.use_for_apm		= 1,
-	},
+static const struct power_supply_desc main_bat_desc = {
+	.name			= "main-battery",
+	.type			= POWER_SUPPLY_TYPE_BATTERY,
+	.properties		= s3c_adc_main_bat_props,
+	.num_properties		= ARRAY_SIZE(s3c_adc_main_bat_props),
+	.get_property		= s3c_adc_bat_get_property,
+	.external_power_changed = s3c_adc_bat_ext_power_changed,
+	.use_for_apm		= 1,
 };
 
+static struct s3c_adc_bat main_bat;
+
 static void s3c_adc_bat_work(struct work_struct *work)
 {
 	struct s3c_adc_bat *bat = &main_bat;
@@ -251,7 +251,7 @@ static void s3c_adc_bat_work(struct work_struct *work)
 	int is_plugged;
 	static int was_plugged;
 
-	is_plugged = power_supply_am_i_supplied(&bat->psy);
+	is_plugged = power_supply_am_i_supplied(bat->psy);
 	bat->cable_plugged = is_plugged;
 	if (is_plugged != was_plugged) {
 		was_plugged = is_plugged;
@@ -279,7 +279,7 @@ static void s3c_adc_bat_work(struct work_struct *work)
 		}
 	}
 
-	power_supply_changed(&bat->psy);
+	power_supply_changed(bat->psy);
 }
 
 static irqreturn_t s3c_adc_bat_charged(int irq, void *dev_id)
@@ -310,16 +310,25 @@ static int s3c_adc_bat_probe(struct platform_device *pdev)
 	main_bat.cable_plugged = 0;
 	main_bat.status = POWER_SUPPLY_STATUS_DISCHARGING;
 
-	ret = power_supply_register(&pdev->dev, &main_bat.psy);
-	if (ret)
+	main_bat.psy = power_supply_register(&pdev->dev, &main_bat_desc, NULL);
+	if (IS_ERR(main_bat.psy)) {
+		ret = PTR_ERR(main_bat.psy);
 		goto err_reg_main;
+	}
 	if (pdata->backup_volt_mult) {
+		const struct power_supply_config psy_cfg
+						= { .drv_data = &backup_bat, };
+
 		backup_bat.client = client;
 		backup_bat.pdata = pdev->dev.platform_data;
 		backup_bat.volt_value = -1;
-		ret = power_supply_register(&pdev->dev, &backup_bat.psy);
-		if (ret)
+		backup_bat.psy = power_supply_register(&pdev->dev,
+						       &backup_bat_desc,
+						       &psy_cfg);
+		if (IS_ERR(backup_bat.psy)) {
+			ret = PTR_ERR(backup_bat.psy);
 			goto err_reg_backup;
+		}
 	}
 
 	INIT_DELAYED_WORK(&bat_work, s3c_adc_bat_work);
@@ -360,9 +369,9 @@ err_irq:
 		gpio_free(pdata->gpio_charge_finished);
 err_gpio:
 	if (pdata->backup_volt_mult)
-		power_supply_unregister(&backup_bat.psy);
+		power_supply_unregister(backup_bat.psy);
 err_reg_backup:
-	power_supply_unregister(&main_bat.psy);
+	power_supply_unregister(main_bat.psy);
 err_reg_main:
 	return ret;
 }
@@ -372,9 +381,9 @@ static int s3c_adc_bat_remove(struct platform_device *pdev)
 	struct s3c_adc_client *client = platform_get_drvdata(pdev);
 	struct s3c_adc_bat_pdata *pdata = pdev->dev.platform_data;
 
-	power_supply_unregister(&main_bat.psy);
+	power_supply_unregister(main_bat.psy);
 	if (pdata->backup_volt_mult)
-		power_supply_unregister(&backup_bat.psy);
+		power_supply_unregister(backup_bat.psy);
 
 	s3c_adc_release(client);
 
diff --git a/drivers/power/sbs-battery.c b/drivers/power/sbs-battery.c
index c7b7b40..de11786 100644
--- a/drivers/power/sbs-battery.c
+++ b/drivers/power/sbs-battery.c
@@ -156,7 +156,7 @@ static enum power_supply_property sbs_properties[] = {
 
 struct sbs_info {
 	struct i2c_client		*client;
-	struct power_supply		power_supply;
+	struct power_supply		*power_supply;
 	struct sbs_platform_data	*pdata;
 	bool				is_present;
 	bool				gpio_detect;
@@ -391,7 +391,7 @@ static int sbs_get_battery_property(struct i2c_client *client,
 			chip->last_state = val->intval;
 		else if (chip->last_state != val->intval) {
 			cancel_delayed_work_sync(&chip->work);
-			power_supply_changed(&chip->power_supply);
+			power_supply_changed(chip->power_supply);
 			chip->poll_time = 0;
 		}
 	} else {
@@ -556,8 +556,7 @@ static int sbs_get_property(struct power_supply *psy,
 	union power_supply_propval *val)
 {
 	int ret = 0;
-	struct sbs_info *chip = container_of(psy,
-				struct sbs_info, power_supply);
+	struct sbs_info *chip = power_supply_get_drvdata(psy);
 	struct i2c_client *client = chip->client;
 
 	switch (psp) {
@@ -638,7 +637,7 @@ static int sbs_get_property(struct power_supply *psy,
 	if (!chip->gpio_detect &&
 		chip->is_present != (ret >= 0)) {
 		chip->is_present = (ret >= 0);
-		power_supply_changed(&chip->power_supply);
+		power_supply_changed(chip->power_supply);
 	}
 
 done:
@@ -671,9 +670,7 @@ static irqreturn_t sbs_irq(int irq, void *devid)
 
 static void sbs_external_power_changed(struct power_supply *psy)
 {
-	struct sbs_info *chip;
-
-	chip = container_of(psy, struct sbs_info, power_supply);
+	struct sbs_info *chip = power_supply_get_drvdata(psy);
 
 	if (chip->ignore_changes > 0) {
 		chip->ignore_changes--;
@@ -712,7 +709,7 @@ static void sbs_delayed_work(struct work_struct *work)
 
 	if (chip->last_state != ret) {
 		chip->poll_time = 0;
-		power_supply_changed(&chip->power_supply);
+		power_supply_changed(chip->power_supply);
 		return;
 	}
 	if (chip->poll_time > 0) {
@@ -796,42 +793,48 @@ static struct sbs_platform_data *sbs_of_populate_pdata(
 }
 #endif
 
+static const struct power_supply_desc sbs_default_desc = {
+	.type = POWER_SUPPLY_TYPE_BATTERY,
+	.properties = sbs_properties,
+	.num_properties = ARRAY_SIZE(sbs_properties),
+	.get_property = sbs_get_property,
+	.external_power_changed = sbs_external_power_changed,
+};
+
 static int sbs_probe(struct i2c_client *client,
 	const struct i2c_device_id *id)
 {
 	struct sbs_info *chip;
+	struct power_supply_desc *sbs_desc;
 	struct sbs_platform_data *pdata = client->dev.platform_data;
+	struct power_supply_config psy_cfg = {};
 	int rc;
 	int irq;
-	char *name;
 
-	name = kasprintf(GFP_KERNEL, "sbs-%s", dev_name(&client->dev));
-	if (!name) {
-		dev_err(&client->dev, "Failed to allocate device name\n");
+	sbs_desc = devm_kmemdup(&client->dev, &sbs_default_desc,
+			sizeof(*sbs_desc), GFP_KERNEL);
+	if (!sbs_desc)
+		return -ENOMEM;
+
+	sbs_desc->name = devm_kasprintf(&client->dev, GFP_KERNEL, "sbs-%s",
+			dev_name(&client->dev));
+	if (!sbs_desc->name)
 		return -ENOMEM;
-	}
 
 	chip = kzalloc(sizeof(struct sbs_info), GFP_KERNEL);
-	if (!chip) {
-		rc = -ENOMEM;
-		goto exit_free_name;
-	}
+	if (!chip)
+		return -ENOMEM;
 
 	chip->client = client;
 	chip->enable_detection = false;
 	chip->gpio_detect = false;
-	chip->power_supply.name = name;
-	chip->power_supply.type = POWER_SUPPLY_TYPE_BATTERY;
-	chip->power_supply.properties = sbs_properties;
-	chip->power_supply.num_properties = ARRAY_SIZE(sbs_properties);
-	chip->power_supply.get_property = sbs_get_property;
-	chip->power_supply.of_node = client->dev.of_node;
+	psy_cfg.of_node = client->dev.of_node;
+	psy_cfg.drv_data = chip;
 	/* ignore first notification of external change, it is generated
 	 * from the power_supply_register call back
 	 */
 	chip->ignore_changes = 1;
 	chip->last_state = POWER_SUPPLY_STATUS_UNKNOWN;
-	chip->power_supply.external_power_changed = sbs_external_power_changed;
 
 	pdata = sbs_of_populate_pdata(client);
 
@@ -870,7 +873,7 @@ static int sbs_probe(struct i2c_client *client,
 
 	rc = request_irq(irq, sbs_irq,
 		IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
-		dev_name(&client->dev), &chip->power_supply);
+		dev_name(&client->dev), chip->power_supply);
 	if (rc) {
 		dev_warn(&client->dev, "Failed to request irq: %d\n", rc);
 		gpio_free(pdata->battery_detect);
@@ -892,10 +895,12 @@ skip_gpio:
 		goto exit_psupply;
 	}
 
-	rc = power_supply_register(&client->dev, &chip->power_supply);
-	if (rc) {
+	chip->power_supply = power_supply_register(&client->dev, sbs_desc,
+						   &psy_cfg);
+	if (IS_ERR(chip->power_supply)) {
 		dev_err(&client->dev,
 			"%s: Failed to register power supply\n", __func__);
+		rc = PTR_ERR(chip->power_supply);
 		goto exit_psupply;
 	}
 
@@ -910,15 +915,12 @@ skip_gpio:
 
 exit_psupply:
 	if (chip->irq)
-		free_irq(chip->irq, &chip->power_supply);
+		free_irq(chip->irq, chip->power_supply);
 	if (chip->gpio_detect)
 		gpio_free(pdata->battery_detect);
 
 	kfree(chip);
 
-exit_free_name:
-	kfree(name);
-
 	return rc;
 }
 
@@ -927,15 +929,14 @@ static int sbs_remove(struct i2c_client *client)
 	struct sbs_info *chip = i2c_get_clientdata(client);
 
 	if (chip->irq)
-		free_irq(chip->irq, &chip->power_supply);
+		free_irq(chip->irq, chip->power_supply);
 	if (chip->gpio_detect)
 		gpio_free(chip->pdata->battery_detect);
 
-	power_supply_unregister(&chip->power_supply);
+	power_supply_unregister(chip->power_supply);
 
 	cancel_delayed_work_sync(&chip->work);
 
-	kfree(chip->power_supply.name);
 	kfree(chip);
 	chip = NULL;
 
diff --git a/drivers/power/smb347-charger.c b/drivers/power/smb347-charger.c
index acf84e8..0b60a0b 100644
--- a/drivers/power/smb347-charger.c
+++ b/drivers/power/smb347-charger.c
@@ -139,9 +139,9 @@ struct smb347_charger {
 	struct mutex		lock;
 	struct device		*dev;
 	struct regmap		*regmap;
-	struct power_supply	mains;
-	struct power_supply	usb;
-	struct power_supply	battery;
+	struct power_supply	*mains;
+	struct power_supply	*usb;
+	struct power_supply	*battery;
 	bool			mains_online;
 	bool			usb_online;
 	bool			charging_enabled;
@@ -741,7 +741,7 @@ static irqreturn_t smb347_interrupt(int irq, void *data)
 	 */
 	if (stat_c & STAT_C_CHARGER_ERROR) {
 		dev_err(smb->dev, "charging stopped due to charger error\n");
-		power_supply_changed(&smb->battery);
+		power_supply_changed(smb->battery);
 		handled = true;
 	}
 
@@ -752,7 +752,7 @@ static irqreturn_t smb347_interrupt(int irq, void *data)
 	 */
 	if (irqstat_c & (IRQSTAT_C_TERMINATION_IRQ | IRQSTAT_C_TAPER_IRQ)) {
 		if (irqstat_c & IRQSTAT_C_TERMINATION_STAT)
-			power_supply_changed(&smb->battery);
+			power_supply_changed(smb->battery);
 		dev_dbg(smb->dev, "going to HW maintenance mode\n");
 		handled = true;
 	}
@@ -766,7 +766,7 @@ static irqreturn_t smb347_interrupt(int irq, void *data)
 
 		if (irqstat_d & IRQSTAT_D_CHARGE_TIMEOUT_STAT)
 			dev_warn(smb->dev, "charging stopped due to timeout\n");
-		power_supply_changed(&smb->battery);
+		power_supply_changed(smb->battery);
 		handled = true;
 	}
 
@@ -778,9 +778,9 @@ static irqreturn_t smb347_interrupt(int irq, void *data)
 		if (smb347_update_ps_status(smb) > 0) {
 			smb347_start_stop_charging(smb);
 			if (smb->pdata->use_mains)
-				power_supply_changed(&smb->mains);
+				power_supply_changed(smb->mains);
 			if (smb->pdata->use_usb)
-				power_supply_changed(&smb->usb);
+				power_supply_changed(smb->usb);
 		}
 		handled = true;
 	}
@@ -842,7 +842,8 @@ static int smb347_irq_init(struct smb347_charger *smb,
 		goto fail;
 
 	ret = request_threaded_irq(irq, NULL, smb347_interrupt,
-				   IRQF_TRIGGER_FALLING, client->name, smb);
+				   IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
+				   client->name, smb);
 	if (ret < 0)
 		goto fail_gpio;
 
@@ -934,8 +935,7 @@ static int smb347_mains_get_property(struct power_supply *psy,
 				     enum power_supply_property prop,
 				     union power_supply_propval *val)
 {
-	struct smb347_charger *smb =
-		container_of(psy, struct smb347_charger, mains);
+	struct smb347_charger *smb = power_supply_get_drvdata(psy);
 	int ret;
 
 	switch (prop) {
@@ -976,8 +976,7 @@ static int smb347_usb_get_property(struct power_supply *psy,
 				   enum power_supply_property prop,
 				   union power_supply_propval *val)
 {
-	struct smb347_charger *smb =
-		container_of(psy, struct smb347_charger, usb);
+	struct smb347_charger *smb = power_supply_get_drvdata(psy);
 	int ret;
 
 	switch (prop) {
@@ -1063,8 +1062,7 @@ static int smb347_battery_get_property(struct power_supply *psy,
 				       enum power_supply_property prop,
 				       union power_supply_propval *val)
 {
-	struct smb347_charger *smb =
-			container_of(psy, struct smb347_charger, battery);
+	struct smb347_charger *smb = power_supply_get_drvdata(psy);
 	const struct smb347_charger_platform_data *pdata = smb->pdata;
 	int ret;
 
@@ -1188,11 +1186,36 @@ static const struct regmap_config smb347_regmap = {
 	.readable_reg	= smb347_readable_reg,
 };
 
+static const struct power_supply_desc smb347_mains_desc = {
+	.name		= "smb347-mains",
+	.type		= POWER_SUPPLY_TYPE_MAINS,
+	.get_property	= smb347_mains_get_property,
+	.properties	= smb347_mains_properties,
+	.num_properties	= ARRAY_SIZE(smb347_mains_properties),
+};
+
+static const struct power_supply_desc smb347_usb_desc = {
+	.name		= "smb347-usb",
+	.type		= POWER_SUPPLY_TYPE_USB,
+	.get_property	= smb347_usb_get_property,
+	.properties	= smb347_usb_properties,
+	.num_properties	= ARRAY_SIZE(smb347_usb_properties),
+};
+
+static const struct power_supply_desc smb347_battery_desc = {
+	.name		= "smb347-battery",
+	.type		= POWER_SUPPLY_TYPE_BATTERY,
+	.get_property	= smb347_battery_get_property,
+	.properties	= smb347_battery_properties,
+	.num_properties	= ARRAY_SIZE(smb347_battery_properties),
+};
+
 static int smb347_probe(struct i2c_client *client,
 			const struct i2c_device_id *id)
 {
 	static char *battery[] = { "smb347-battery" };
 	const struct smb347_charger_platform_data *pdata;
+	struct power_supply_config mains_usb_cfg = {}, battery_cfg = {};
 	struct device *dev = &client->dev;
 	struct smb347_charger *smb;
 	int ret;
@@ -1222,49 +1245,35 @@ static int smb347_probe(struct i2c_client *client,
 	if (ret < 0)
 		return ret;
 
+	mains_usb_cfg.supplied_to = battery;
+	mains_usb_cfg.num_supplicants = ARRAY_SIZE(battery);
+	mains_usb_cfg.drv_data = smb;
 	if (smb->pdata->use_mains) {
-		smb->mains.name = "smb347-mains";
-		smb->mains.type = POWER_SUPPLY_TYPE_MAINS;
-		smb->mains.get_property = smb347_mains_get_property;
-		smb->mains.properties = smb347_mains_properties;
-		smb->mains.num_properties = ARRAY_SIZE(smb347_mains_properties);
-		smb->mains.supplied_to = battery;
-		smb->mains.num_supplicants = ARRAY_SIZE(battery);
-		ret = power_supply_register(dev, &smb->mains);
-		if (ret < 0)
-			return ret;
+		smb->mains = power_supply_register(dev, &smb347_mains_desc,
+						   &mains_usb_cfg);
+		if (IS_ERR(smb->mains))
+			return PTR_ERR(smb->mains);
 	}
 
 	if (smb->pdata->use_usb) {
-		smb->usb.name = "smb347-usb";
-		smb->usb.type = POWER_SUPPLY_TYPE_USB;
-		smb->usb.get_property = smb347_usb_get_property;
-		smb->usb.properties = smb347_usb_properties;
-		smb->usb.num_properties = ARRAY_SIZE(smb347_usb_properties);
-		smb->usb.supplied_to = battery;
-		smb->usb.num_supplicants = ARRAY_SIZE(battery);
-		ret = power_supply_register(dev, &smb->usb);
-		if (ret < 0) {
+		smb->usb = power_supply_register(dev, &smb347_usb_desc,
+						 &mains_usb_cfg);
+		if (IS_ERR(smb->usb)) {
 			if (smb->pdata->use_mains)
-				power_supply_unregister(&smb->mains);
-			return ret;
+				power_supply_unregister(smb->mains);
+			return PTR_ERR(smb->usb);
 		}
 	}
 
-	smb->battery.name = "smb347-battery";
-	smb->battery.type = POWER_SUPPLY_TYPE_BATTERY;
-	smb->battery.get_property = smb347_battery_get_property;
-	smb->battery.properties = smb347_battery_properties;
-	smb->battery.num_properties = ARRAY_SIZE(smb347_battery_properties);
-
-
-	ret = power_supply_register(dev, &smb->battery);
-	if (ret < 0) {
+	battery_cfg.drv_data = smb;
+	smb->battery = power_supply_register(dev, &smb347_battery_desc,
+					     &battery_cfg);
+	if (IS_ERR(smb->battery)) {
 		if (smb->pdata->use_usb)
-			power_supply_unregister(&smb->usb);
+			power_supply_unregister(smb->usb);
 		if (smb->pdata->use_mains)
-			power_supply_unregister(&smb->mains);
-		return ret;
+			power_supply_unregister(smb->mains);
+		return PTR_ERR(smb->battery);
 	}
 
 	/*
@@ -1294,11 +1303,11 @@ static int smb347_remove(struct i2c_client *client)
 		gpio_free(smb->pdata->irq_gpio);
 	}
 
-	power_supply_unregister(&smb->battery);
+	power_supply_unregister(smb->battery);
 	if (smb->pdata->use_usb)
-		power_supply_unregister(&smb->usb);
+		power_supply_unregister(smb->usb);
 	if (smb->pdata->use_mains)
-		power_supply_unregister(&smb->mains);
+		power_supply_unregister(smb->mains);
 	return 0;
 }
 
diff --git a/drivers/power/test_power.c b/drivers/power/test_power.c
index f26b1fa..f986e0c 100644
--- a/drivers/power/test_power.c
+++ b/drivers/power/test_power.c
@@ -153,12 +153,12 @@ static char *test_power_ac_supplied_to[] = {
 	"test_battery",
 };
 
-static struct power_supply test_power_supplies[] = {
+static struct power_supply *test_power_supplies[TEST_POWER_NUM];
+
+static const struct power_supply_desc test_power_desc[] = {
 	[TEST_AC] = {
 		.name = "test_ac",
 		.type = POWER_SUPPLY_TYPE_MAINS,
-		.supplied_to = test_power_ac_supplied_to,
-		.num_supplicants = ARRAY_SIZE(test_power_ac_supplied_to),
 		.properties = test_power_ac_props,
 		.num_properties = ARRAY_SIZE(test_power_ac_props),
 		.get_property = test_power_get_ac_property,
@@ -173,14 +173,25 @@ static struct power_supply test_power_supplies[] = {
 	[TEST_USB] = {
 		.name = "test_usb",
 		.type = POWER_SUPPLY_TYPE_USB,
-		.supplied_to = test_power_ac_supplied_to,
-		.num_supplicants = ARRAY_SIZE(test_power_ac_supplied_to),
 		.properties = test_power_ac_props,
 		.num_properties = ARRAY_SIZE(test_power_ac_props),
 		.get_property = test_power_get_usb_property,
 	},
 };
 
+static const struct power_supply_config test_power_configs[] = {
+	{
+		/* test_ac */
+		.supplied_to = test_power_ac_supplied_to,
+		.num_supplicants = ARRAY_SIZE(test_power_ac_supplied_to),
+	}, {
+		/* test_battery */
+	}, {
+		/* test_usb */
+		.supplied_to = test_power_ac_supplied_to,
+		.num_supplicants = ARRAY_SIZE(test_power_ac_supplied_to),
+	},
+};
 
 static int __init test_power_init(void)
 {
@@ -188,12 +199,16 @@ static int __init test_power_init(void)
 	int ret;
 
 	BUILD_BUG_ON(TEST_POWER_NUM != ARRAY_SIZE(test_power_supplies));
+	BUILD_BUG_ON(TEST_POWER_NUM != ARRAY_SIZE(test_power_configs));
 
 	for (i = 0; i < ARRAY_SIZE(test_power_supplies); i++) {
-		ret = power_supply_register(NULL, &test_power_supplies[i]);
-		if (ret) {
+		test_power_supplies[i] = power_supply_register(NULL,
+						&test_power_desc[i],
+						&test_power_configs[i]);
+		if (IS_ERR(test_power_supplies[i])) {
 			pr_err("%s: failed to register %s\n", __func__,
-				test_power_supplies[i].name);
+				test_power_desc[i].name);
+			ret = PTR_ERR(test_power_supplies[i]);
 			goto failed;
 		}
 	}
@@ -202,7 +217,7 @@ static int __init test_power_init(void)
 	return 0;
 failed:
 	while (--i >= 0)
-		power_supply_unregister(&test_power_supplies[i]);
+		power_supply_unregister(test_power_supplies[i]);
 	return ret;
 }
 module_init(test_power_init);
@@ -216,13 +231,13 @@ static void __exit test_power_exit(void)
 	usb_online = 0;
 	battery_status = POWER_SUPPLY_STATUS_DISCHARGING;
 	for (i = 0; i < ARRAY_SIZE(test_power_supplies); i++)
-		power_supply_changed(&test_power_supplies[i]);
+		power_supply_changed(test_power_supplies[i]);
 	pr_info("%s: 'changed' event sent, sleeping for 10 seconds...\n",
 		__func__);
 	ssleep(10);
 
 	for (i = 0; i < ARRAY_SIZE(test_power_supplies); i++)
-		power_supply_unregister(&test_power_supplies[i]);
+		power_supply_unregister(test_power_supplies[i]);
 
 	module_initialized = false;
 }
@@ -320,7 +335,7 @@ static inline void signal_power_supply_changed(struct power_supply *psy)
 static int param_set_ac_online(const char *key, const struct kernel_param *kp)
 {
 	ac_online = map_get_value(map_ac_online, key, ac_online);
-	signal_power_supply_changed(&test_power_supplies[TEST_AC]);
+	signal_power_supply_changed(test_power_supplies[TEST_AC]);
 	return 0;
 }
 
@@ -333,7 +348,7 @@ static int param_get_ac_online(char *buffer, const struct kernel_param *kp)
 static int param_set_usb_online(const char *key, const struct kernel_param *kp)
 {
 	usb_online = map_get_value(map_ac_online, key, usb_online);
-	signal_power_supply_changed(&test_power_supplies[TEST_USB]);
+	signal_power_supply_changed(test_power_supplies[TEST_USB]);
 	return 0;
 }
 
@@ -347,7 +362,7 @@ static int param_set_battery_status(const char *key,
 					const struct kernel_param *kp)
 {
 	battery_status = map_get_value(map_status, key, battery_status);
-	signal_power_supply_changed(&test_power_supplies[TEST_BATTERY]);
+	signal_power_supply_changed(test_power_supplies[TEST_BATTERY]);
 	return 0;
 }
 
@@ -361,7 +376,7 @@ static int param_set_battery_health(const char *key,
 					const struct kernel_param *kp)
 {
 	battery_health = map_get_value(map_health, key, battery_health);
-	signal_power_supply_changed(&test_power_supplies[TEST_BATTERY]);
+	signal_power_supply_changed(test_power_supplies[TEST_BATTERY]);
 	return 0;
 }
 
@@ -375,7 +390,7 @@ static int param_set_battery_present(const char *key,
 					const struct kernel_param *kp)
 {
 	battery_present = map_get_value(map_present, key, battery_present);
-	signal_power_supply_changed(&test_power_supplies[TEST_AC]);
+	signal_power_supply_changed(test_power_supplies[TEST_AC]);
 	return 0;
 }
 
@@ -391,7 +406,7 @@ static int param_set_battery_technology(const char *key,
 {
 	battery_technology = map_get_value(map_technology, key,
 						battery_technology);
-	signal_power_supply_changed(&test_power_supplies[TEST_BATTERY]);
+	signal_power_supply_changed(test_power_supplies[TEST_BATTERY]);
 	return 0;
 }
 
@@ -412,7 +427,7 @@ static int param_set_battery_capacity(const char *key,
 		return -EINVAL;
 
 	battery_capacity = tmp;
-	signal_power_supply_changed(&test_power_supplies[TEST_BATTERY]);
+	signal_power_supply_changed(test_power_supplies[TEST_BATTERY]);
 	return 0;
 }
 
@@ -427,7 +442,7 @@ static int param_set_battery_voltage(const char *key,
 		return -EINVAL;
 
 	battery_voltage = tmp;
-	signal_power_supply_changed(&test_power_supplies[TEST_BATTERY]);
+	signal_power_supply_changed(test_power_supplies[TEST_BATTERY]);
 	return 0;
 }
 
diff --git a/drivers/power/tosa_battery.c b/drivers/power/tosa_battery.c
index f4d80df..6e88c1b 100644
--- a/drivers/power/tosa_battery.c
+++ b/drivers/power/tosa_battery.c
@@ -26,7 +26,7 @@ static struct work_struct bat_work;
 
 struct tosa_bat {
 	int status;
-	struct power_supply psy;
+	struct power_supply *psy;
 	int full_chrg;
 
 	struct mutex work_lock; /* protects data */
@@ -61,7 +61,7 @@ static unsigned long tosa_read_bat(struct tosa_bat *bat)
 	mutex_lock(&bat_lock);
 	gpio_set_value(bat->gpio_bat, 1);
 	msleep(5);
-	value = wm97xx_read_aux_adc(dev_get_drvdata(bat->psy.dev->parent),
+	value = wm97xx_read_aux_adc(dev_get_drvdata(bat->psy->dev.parent),
 			bat->adc_bat);
 	gpio_set_value(bat->gpio_bat, 0);
 	mutex_unlock(&bat_lock);
@@ -81,7 +81,7 @@ static unsigned long tosa_read_temp(struct tosa_bat *bat)
 	mutex_lock(&bat_lock);
 	gpio_set_value(bat->gpio_temp, 1);
 	msleep(5);
-	value = wm97xx_read_aux_adc(dev_get_drvdata(bat->psy.dev->parent),
+	value = wm97xx_read_aux_adc(dev_get_drvdata(bat->psy->dev.parent),
 			bat->adc_temp);
 	gpio_set_value(bat->gpio_temp, 0);
 	mutex_unlock(&bat_lock);
@@ -96,7 +96,7 @@ static int tosa_bat_get_property(struct power_supply *psy,
 			    union power_supply_propval *val)
 {
 	int ret = 0;
-	struct tosa_bat *bat = container_of(psy, struct tosa_bat, psy);
+	struct tosa_bat *bat = power_supply_get_drvdata(psy);
 
 	if (bat->is_present && !bat->is_present(bat)
 			&& psp != POWER_SUPPLY_PROP_PRESENT) {
@@ -158,14 +158,14 @@ static irqreturn_t tosa_bat_gpio_isr(int irq, void *data)
 static void tosa_bat_update(struct tosa_bat *bat)
 {
 	int old;
-	struct power_supply *psy = &bat->psy;
+	struct power_supply *psy = bat->psy;
 
 	mutex_lock(&bat->work_lock);
 
 	old = bat->status;
 
 	if (bat->is_present && !bat->is_present(bat)) {
-		printk(KERN_NOTICE "%s not present\n", psy->name);
+		printk(KERN_NOTICE "%s not present\n", psy->desc->name);
 		bat->status = POWER_SUPPLY_STATUS_UNKNOWN;
 		bat->full_chrg = -1;
 	} else if (power_supply_am_i_supplied(psy)) {
@@ -222,18 +222,38 @@ static enum power_supply_property tosa_bat_bu_props[] = {
 	POWER_SUPPLY_PROP_PRESENT,
 };
 
+static const struct power_supply_desc tosa_bat_main_desc = {
+	.name		= "main-battery",
+	.type		= POWER_SUPPLY_TYPE_BATTERY,
+	.properties	= tosa_bat_main_props,
+	.num_properties	= ARRAY_SIZE(tosa_bat_main_props),
+	.get_property	= tosa_bat_get_property,
+	.external_power_changed = tosa_bat_external_power_changed,
+	.use_for_apm	= 1,
+};
+
+static const struct power_supply_desc tosa_bat_jacket_desc = {
+	.name		= "jacket-battery",
+	.type		= POWER_SUPPLY_TYPE_BATTERY,
+	.properties	= tosa_bat_main_props,
+	.num_properties	= ARRAY_SIZE(tosa_bat_main_props),
+	.get_property	= tosa_bat_get_property,
+	.external_power_changed = tosa_bat_external_power_changed,
+};
+
+static const struct power_supply_desc tosa_bat_bu_desc = {
+	.name		= "backup-battery",
+	.type		= POWER_SUPPLY_TYPE_BATTERY,
+	.properties	= tosa_bat_bu_props,
+	.num_properties	= ARRAY_SIZE(tosa_bat_bu_props),
+	.get_property	= tosa_bat_get_property,
+	.external_power_changed = tosa_bat_external_power_changed,
+};
+
 static struct tosa_bat tosa_bat_main = {
 	.status = POWER_SUPPLY_STATUS_DISCHARGING,
 	.full_chrg = -1,
-	.psy = {
-		.name		= "main-battery",
-		.type		= POWER_SUPPLY_TYPE_BATTERY,
-		.properties	= tosa_bat_main_props,
-		.num_properties	= ARRAY_SIZE(tosa_bat_main_props),
-		.get_property	= tosa_bat_get_property,
-		.external_power_changed = tosa_bat_external_power_changed,
-		.use_for_apm	= 1,
-	},
+	.psy = NULL,
 
 	.gpio_full = TOSA_GPIO_BAT0_CRG,
 	.gpio_charge_off = TOSA_GPIO_CHARGE_OFF,
@@ -254,14 +274,7 @@ static struct tosa_bat tosa_bat_main = {
 static struct tosa_bat tosa_bat_jacket = {
 	.status = POWER_SUPPLY_STATUS_DISCHARGING,
 	.full_chrg = -1,
-	.psy = {
-		.name		= "jacket-battery",
-		.type		= POWER_SUPPLY_TYPE_BATTERY,
-		.properties	= tosa_bat_main_props,
-		.num_properties	= ARRAY_SIZE(tosa_bat_main_props),
-		.get_property	= tosa_bat_get_property,
-		.external_power_changed = tosa_bat_external_power_changed,
-	},
+	.psy = NULL,
 
 	.is_present = tosa_jacket_bat_is_present,
 	.gpio_full = TOSA_GPIO_BAT1_CRG,
@@ -283,15 +296,7 @@ static struct tosa_bat tosa_bat_jacket = {
 static struct tosa_bat tosa_bat_bu = {
 	.status = POWER_SUPPLY_STATUS_UNKNOWN,
 	.full_chrg = -1,
-
-	.psy = {
-		.name		= "backup-battery",
-		.type		= POWER_SUPPLY_TYPE_BATTERY,
-		.properties	= tosa_bat_bu_props,
-		.num_properties	= ARRAY_SIZE(tosa_bat_bu_props),
-		.get_property	= tosa_bat_get_property,
-		.external_power_changed = tosa_bat_external_power_changed,
-	},
+	.psy = NULL,
 
 	.gpio_full = -1,
 	.gpio_charge_off = -1,
@@ -345,6 +350,9 @@ static int tosa_bat_resume(struct platform_device *dev)
 static int tosa_bat_probe(struct platform_device *dev)
 {
 	int ret;
+	struct power_supply_config main_psy_cfg = {},
+				   jacket_psy_cfg = {},
+				   bu_psy_cfg = {};
 
 	if (!machine_is_tosa())
 		return -ENODEV;
@@ -358,15 +366,31 @@ static int tosa_bat_probe(struct platform_device *dev)
 
 	INIT_WORK(&bat_work, tosa_bat_work);
 
-	ret = power_supply_register(&dev->dev, &tosa_bat_main.psy);
-	if (ret)
+	main_psy_cfg.drv_data = &tosa_bat_main;
+	tosa_bat_main.psy = power_supply_register(&dev->dev,
+						  &tosa_bat_main_desc,
+						  &main_psy_cfg);
+	if (IS_ERR(tosa_bat_main.psy)) {
+		ret = PTR_ERR(tosa_bat_main.psy);
 		goto err_psy_reg_main;
-	ret = power_supply_register(&dev->dev, &tosa_bat_jacket.psy);
-	if (ret)
+	}
+
+	jacket_psy_cfg.drv_data = &tosa_bat_jacket;
+	tosa_bat_jacket.psy = power_supply_register(&dev->dev,
+						    &tosa_bat_jacket_desc,
+						    &jacket_psy_cfg);
+	if (IS_ERR(tosa_bat_jacket.psy)) {
+		ret = PTR_ERR(tosa_bat_jacket.psy);
 		goto err_psy_reg_jacket;
-	ret = power_supply_register(&dev->dev, &tosa_bat_bu.psy);
-	if (ret)
+	}
+
+	bu_psy_cfg.drv_data = &tosa_bat_bu;
+	tosa_bat_bu.psy = power_supply_register(&dev->dev, &tosa_bat_bu_desc,
+						&bu_psy_cfg);
+	if (IS_ERR(tosa_bat_bu.psy)) {
+		ret = PTR_ERR(tosa_bat_bu.psy);
 		goto err_psy_reg_bu;
+	}
 
 	ret = request_irq(gpio_to_irq(TOSA_GPIO_BAT0_CRG),
 				tosa_bat_gpio_isr,
@@ -395,11 +419,11 @@ static int tosa_bat_probe(struct platform_device *dev)
 err_req_jacket:
 	free_irq(gpio_to_irq(TOSA_GPIO_BAT0_CRG), &tosa_bat_main);
 err_req_main:
-	power_supply_unregister(&tosa_bat_bu.psy);
+	power_supply_unregister(tosa_bat_bu.psy);
 err_psy_reg_bu:
-	power_supply_unregister(&tosa_bat_jacket.psy);
+	power_supply_unregister(tosa_bat_jacket.psy);
 err_psy_reg_jacket:
-	power_supply_unregister(&tosa_bat_main.psy);
+	power_supply_unregister(tosa_bat_main.psy);
 err_psy_reg_main:
 
 	/* see comment in tosa_bat_remove */
@@ -415,9 +439,9 @@ static int tosa_bat_remove(struct platform_device *dev)
 	free_irq(gpio_to_irq(TOSA_GPIO_BAT1_CRG), &tosa_bat_jacket);
 	free_irq(gpio_to_irq(TOSA_GPIO_BAT0_CRG), &tosa_bat_main);
 
-	power_supply_unregister(&tosa_bat_bu.psy);
-	power_supply_unregister(&tosa_bat_jacket.psy);
-	power_supply_unregister(&tosa_bat_main.psy);
+	power_supply_unregister(tosa_bat_bu.psy);
+	power_supply_unregister(tosa_bat_jacket.psy);
+	power_supply_unregister(tosa_bat_main.psy);
 
 	/*
 	 * Now cancel the bat_work.  We won't get any more schedules,
diff --git a/drivers/power/tps65090-charger.c b/drivers/power/tps65090-charger.c
index 0f4e597..7e8fbd2 100644
--- a/drivers/power/tps65090-charger.c
+++ b/drivers/power/tps65090-charger.c
@@ -43,7 +43,7 @@ struct tps65090_charger {
 	int	irq;
 	struct task_struct	*poll_task;
 	bool			passive_mode;
-	struct power_supply	ac;
+	struct power_supply	*ac;
 	struct tps65090_platform_data *pdata;
 };
 
@@ -135,8 +135,7 @@ static int tps65090_ac_get_property(struct power_supply *psy,
 			enum power_supply_property psp,
 			union power_supply_propval *val)
 {
-	struct tps65090_charger *charger = container_of(psy,
-					struct tps65090_charger, ac);
+	struct tps65090_charger *charger = power_supply_get_drvdata(psy);
 
 	if (psp == POWER_SUPPLY_PROP_ONLINE) {
 		val->intval = charger->ac_online;
@@ -190,7 +189,7 @@ static irqreturn_t tps65090_charger_isr(int irq, void *dev_id)
 	}
 
 	if (charger->prev_ac_online != charger->ac_online)
-		power_supply_changed(&charger->ac);
+		power_supply_changed(charger->ac);
 
 	return IRQ_HANDLED;
 }
@@ -229,10 +228,19 @@ static int tps65090_charger_poll_task(void *data)
 	return 0;
 }
 
+static const struct power_supply_desc tps65090_charger_desc = {
+	.name			= "tps65090-ac",
+	.type			= POWER_SUPPLY_TYPE_MAINS,
+	.get_property		= tps65090_ac_get_property,
+	.properties		= tps65090_ac_props,
+	.num_properties		= ARRAY_SIZE(tps65090_ac_props),
+};
+
 static int tps65090_charger_probe(struct platform_device *pdev)
 {
 	struct tps65090_charger *cdata;
 	struct tps65090_platform_data *pdata;
+	struct power_supply_config psy_cfg = {};
 	uint8_t status1 = 0;
 	int ret;
 	int irq;
@@ -259,19 +267,16 @@ static int tps65090_charger_probe(struct platform_device *pdev)
 	cdata->dev			= &pdev->dev;
 	cdata->pdata			= pdata;
 
-	cdata->ac.name			= "tps65090-ac";
-	cdata->ac.type			= POWER_SUPPLY_TYPE_MAINS;
-	cdata->ac.get_property		= tps65090_ac_get_property;
-	cdata->ac.properties		= tps65090_ac_props;
-	cdata->ac.num_properties	= ARRAY_SIZE(tps65090_ac_props);
-	cdata->ac.supplied_to		= pdata->supplied_to;
-	cdata->ac.num_supplicants	= pdata->num_supplicants;
-	cdata->ac.of_node		= pdev->dev.of_node;
-
-	ret = power_supply_register(&pdev->dev, &cdata->ac);
-	if (ret) {
+	psy_cfg.supplied_to		= pdata->supplied_to;
+	psy_cfg.num_supplicants		= pdata->num_supplicants;
+	psy_cfg.of_node			= pdev->dev.of_node;
+	psy_cfg.drv_data		= cdata;
+
+	cdata->ac = power_supply_register(&pdev->dev, &tps65090_charger_desc,
+			&psy_cfg);
+	if (IS_ERR(cdata->ac)) {
 		dev_err(&pdev->dev, "failed: power supply register\n");
-		return ret;
+		return PTR_ERR(cdata->ac);
 	}
 
 	irq = platform_get_irq(pdev, 0);
@@ -301,7 +306,7 @@ static int tps65090_charger_probe(struct platform_device *pdev)
 			goto fail_unregister_supply;
 		}
 		cdata->ac_online = 1;
-		power_supply_changed(&cdata->ac);
+		power_supply_changed(cdata->ac);
 	}
 
 	if (irq != -ENXIO) {
@@ -328,7 +333,7 @@ static int tps65090_charger_probe(struct platform_device *pdev)
 	return 0;
 
 fail_unregister_supply:
-	power_supply_unregister(&cdata->ac);
+	power_supply_unregister(cdata->ac);
 
 	return ret;
 }
@@ -339,12 +344,12 @@ static int tps65090_charger_remove(struct platform_device *pdev)
 
 	if (cdata->irq == -ENXIO)
 		kthread_stop(cdata->poll_task);
-	power_supply_unregister(&cdata->ac);
+	power_supply_unregister(cdata->ac);
 
 	return 0;
 }
 
-static struct of_device_id of_tps65090_charger_match[] = {
+static const struct of_device_id of_tps65090_charger_match[] = {
 	{ .compatible = "ti,tps65090-charger", },
 	{ /* end */ }
 };
diff --git a/drivers/power/twl4030_charger.c b/drivers/power/twl4030_charger.c
index d35b83e..02a522c 100644
--- a/drivers/power/twl4030_charger.c
+++ b/drivers/power/twl4030_charger.c
@@ -87,8 +87,8 @@ MODULE_PARM_DESC(allow_usb, "Allow USB charge drawing default current");
 
 struct twl4030_bci {
 	struct device		*dev;
-	struct power_supply	ac;
-	struct power_supply	usb;
+	struct power_supply	*ac;
+	struct power_supply	*usb;
 	struct usb_phy		*transceiver;
 	struct notifier_block	usb_nb;
 	struct work_struct	work;
@@ -318,8 +318,8 @@ static irqreturn_t twl4030_charger_interrupt(int irq, void *arg)
 	struct twl4030_bci *bci = arg;
 
 	dev_dbg(bci->dev, "CHG_PRES irq\n");
-	power_supply_changed(&bci->ac);
-	power_supply_changed(&bci->usb);
+	power_supply_changed(bci->ac);
+	power_supply_changed(bci->usb);
 
 	return IRQ_HANDLED;
 }
@@ -347,8 +347,8 @@ static irqreturn_t twl4030_bci_interrupt(int irq, void *arg)
 
 	if (irqs1 & (TWL4030_ICHGLOW | TWL4030_ICHGEOC)) {
 		/* charger state change, inform the core */
-		power_supply_changed(&bci->ac);
-		power_supply_changed(&bci->usb);
+		power_supply_changed(bci->ac);
+		power_supply_changed(bci->usb);
 	}
 
 	/* various monitoring events, for now we just log them here */
@@ -463,7 +463,7 @@ static int twl4030_bci_get_property(struct power_supply *psy,
 				    enum power_supply_property psp,
 				    union power_supply_propval *val)
 {
-	struct twl4030_bci *bci = dev_get_drvdata(psy->dev->parent);
+	struct twl4030_bci *bci = dev_get_drvdata(psy->dev.parent);
 	int is_charging;
 	int state;
 	int ret;
@@ -472,7 +472,7 @@ static int twl4030_bci_get_property(struct power_supply *psy,
 	if (state < 0)
 		return state;
 
-	if (psy->type == POWER_SUPPLY_TYPE_USB)
+	if (psy->desc->type == POWER_SUPPLY_TYPE_USB)
 		is_charging = state & TWL4030_MSTATEC_USB;
 	else
 		is_charging = state & TWL4030_MSTATEC_AC;
@@ -488,7 +488,7 @@ static int twl4030_bci_get_property(struct power_supply *psy,
 		/* charging must be active for meaningful result */
 		if (!is_charging)
 			return -ENODATA;
-		if (psy->type == POWER_SUPPLY_TYPE_USB) {
+		if (psy->desc->type == POWER_SUPPLY_TYPE_USB) {
 			ret = twl4030bci_read_adc_val(TWL4030_BCIVBUS);
 			if (ret < 0)
 				return ret;
@@ -558,6 +558,22 @@ twl4030_bci_parse_dt(struct device *dev)
 }
 #endif
 
+static const struct power_supply_desc twl4030_bci_ac_desc = {
+	.name		= "twl4030_ac",
+	.type		= POWER_SUPPLY_TYPE_MAINS,
+	.properties	= twl4030_charger_props,
+	.num_properties	= ARRAY_SIZE(twl4030_charger_props),
+	.get_property	= twl4030_bci_get_property,
+};
+
+static const struct power_supply_desc twl4030_bci_usb_desc = {
+	.name		= "twl4030_usb",
+	.type		= POWER_SUPPLY_TYPE_USB,
+	.properties	= twl4030_charger_props,
+	.num_properties	= ARRAY_SIZE(twl4030_charger_props),
+	.get_property	= twl4030_bci_get_property,
+};
+
 static int __init twl4030_bci_probe(struct platform_device *pdev)
 {
 	struct twl4030_bci *bci;
@@ -584,28 +600,21 @@ static int __init twl4030_bci_probe(struct platform_device *pdev)
 	}
 
 	platform_set_drvdata(pdev, bci);
-	bci->ac.name = "twl4030_ac";
-	bci->ac.type = POWER_SUPPLY_TYPE_MAINS;
-	bci->ac.properties = twl4030_charger_props;
-	bci->ac.num_properties = ARRAY_SIZE(twl4030_charger_props);
-	bci->ac.get_property = twl4030_bci_get_property;
 
-	ret = power_supply_register(&pdev->dev, &bci->ac);
-	if (ret) {
+	bci->ac = power_supply_register(&pdev->dev, &twl4030_bci_ac_desc,
+					NULL);
+	if (IS_ERR(bci->ac)) {
+		ret = PTR_ERR(bci->ac);
 		dev_err(&pdev->dev, "failed to register ac: %d\n", ret);
 		goto fail_register_ac;
 	}
 
-	bci->usb.name = "twl4030_usb";
-	bci->usb.type = POWER_SUPPLY_TYPE_USB;
-	bci->usb.properties = twl4030_charger_props;
-	bci->usb.num_properties = ARRAY_SIZE(twl4030_charger_props);
-	bci->usb.get_property = twl4030_bci_get_property;
-
 	bci->usb_reg = regulator_get(bci->dev, "bci3v1");
 
-	ret = power_supply_register(&pdev->dev, &bci->usb);
-	if (ret) {
+	bci->usb = power_supply_register(&pdev->dev, &twl4030_bci_usb_desc,
+					 NULL);
+	if (IS_ERR(bci->usb)) {
+		ret = PTR_ERR(bci->usb);
 		dev_err(&pdev->dev, "failed to register usb: %d\n", ret);
 		goto fail_register_usb;
 	}
@@ -670,9 +679,9 @@ fail_unmask_interrupts:
 fail_bci_irq:
 	free_irq(bci->irq_chg, bci);
 fail_chg_irq:
-	power_supply_unregister(&bci->usb);
+	power_supply_unregister(bci->usb);
 fail_register_usb:
-	power_supply_unregister(&bci->ac);
+	power_supply_unregister(bci->ac);
 fail_register_ac:
 fail_no_battery:
 	kfree(bci);
@@ -700,8 +709,8 @@ static int __exit twl4030_bci_remove(struct platform_device *pdev)
 	}
 	free_irq(bci->irq_bci, bci);
 	free_irq(bci->irq_chg, bci);
-	power_supply_unregister(&bci->usb);
-	power_supply_unregister(&bci->ac);
+	power_supply_unregister(bci->usb);
+	power_supply_unregister(bci->ac);
 	kfree(bci);
 
 	return 0;
diff --git a/drivers/power/twl4030_madc_battery.c b/drivers/power/twl4030_madc_battery.c
index 7ef445a..f5817e4 100644
--- a/drivers/power/twl4030_madc_battery.c
+++ b/drivers/power/twl4030_madc_battery.c
@@ -19,10 +19,14 @@
 #include <linux/sort.h>
 #include <linux/i2c/twl4030-madc.h>
 #include <linux/power/twl4030_madc_battery.h>
+#include <linux/iio/consumer.h>
 
 struct twl4030_madc_battery {
-	struct power_supply psy;
+	struct power_supply *psy;
 	struct twl4030_madc_bat_platform_data *pdata;
+	struct iio_channel *channel_temp;
+	struct iio_channel *channel_ichg;
+	struct iio_channel *channel_vbat;
 };
 
 static enum power_supply_property twl4030_madc_bat_props[] = {
@@ -38,43 +42,34 @@ static enum power_supply_property twl4030_madc_bat_props[] = {
 	POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW,
 };
 
-static int madc_read(int index)
+static int madc_read(struct iio_channel *channel)
 {
-	struct twl4030_madc_request req;
-	int val;
+	int val, err;
+	err = iio_read_channel_processed(channel, &val);
+	if (err < 0)
+		return err;
 
-	req.channels = index;
-	req.method = TWL4030_MADC_SW2;
-	req.type = TWL4030_MADC_WAIT;
-	req.do_avg = 0;
-	req.raw = false;
-	req.func_cb = NULL;
-
-	val = twl4030_madc_conversion(&req);
-	if (val < 0)
-		return val;
-
-	return req.rbuf[ffs(index) - 1];
+	return val;
 }
 
-static int twl4030_madc_bat_get_charging_status(void)
+static int twl4030_madc_bat_get_charging_status(struct twl4030_madc_battery *bt)
 {
-	return (madc_read(TWL4030_MADC_ICHG) > 0) ? 1 : 0;
+	return (madc_read(bt->channel_ichg) > 0) ? 1 : 0;
 }
 
-static int twl4030_madc_bat_get_voltage(void)
+static int twl4030_madc_bat_get_voltage(struct twl4030_madc_battery *bt)
 {
-	return madc_read(TWL4030_MADC_VBAT);
+	return madc_read(bt->channel_vbat);
 }
 
-static int twl4030_madc_bat_get_current(void)
+static int twl4030_madc_bat_get_current(struct twl4030_madc_battery *bt)
 {
-	return madc_read(TWL4030_MADC_ICHG) * 1000;
+	return madc_read(bt->channel_ichg) * 1000;
 }
 
-static int twl4030_madc_bat_get_temp(void)
+static int twl4030_madc_bat_get_temp(struct twl4030_madc_battery *bt)
 {
-	return madc_read(TWL4030_MADC_BTEMP) * 10;
+	return madc_read(bt->channel_temp) * 10;
 }
 
 static int twl4030_madc_bat_voltscale(struct twl4030_madc_battery *bat,
@@ -84,7 +79,7 @@ static int twl4030_madc_bat_voltscale(struct twl4030_madc_battery *bat,
 	int i, res = 0;
 
 	/* choose charging curve */
-	if (twl4030_madc_bat_get_charging_status())
+	if (twl4030_madc_bat_get_charging_status(bat))
 		calibration = bat->pdata->charging;
 	else
 		calibration = bat->pdata->discharging;
@@ -113,29 +108,28 @@ static int twl4030_madc_bat_get_property(struct power_supply *psy,
 					enum power_supply_property psp,
 					union power_supply_propval *val)
 {
-	struct twl4030_madc_battery *bat = container_of(psy,
-					struct twl4030_madc_battery, psy);
+	struct twl4030_madc_battery *bat = power_supply_get_drvdata(psy);
 
 	switch (psp) {
 	case POWER_SUPPLY_PROP_STATUS:
 		if (twl4030_madc_bat_voltscale(bat,
-				twl4030_madc_bat_get_voltage()) > 95)
+				twl4030_madc_bat_get_voltage(bat)) > 95)
 			val->intval = POWER_SUPPLY_STATUS_FULL;
 		else {
-			if (twl4030_madc_bat_get_charging_status())
+			if (twl4030_madc_bat_get_charging_status(bat))
 				val->intval = POWER_SUPPLY_STATUS_CHARGING;
 			else
 				val->intval = POWER_SUPPLY_STATUS_DISCHARGING;
 		}
 		break;
 	case POWER_SUPPLY_PROP_VOLTAGE_NOW:
-		val->intval = twl4030_madc_bat_get_voltage() * 1000;
+		val->intval = twl4030_madc_bat_get_voltage(bat) * 1000;
 		break;
 	case POWER_SUPPLY_PROP_TECHNOLOGY:
 		val->intval = POWER_SUPPLY_TECHNOLOGY_LION;
 		break;
 	case POWER_SUPPLY_PROP_CURRENT_NOW:
-		val->intval = twl4030_madc_bat_get_current();
+		val->intval = twl4030_madc_bat_get_current(bat);
 		break;
 	case POWER_SUPPLY_PROP_PRESENT:
 		/* assume battery is always present */
@@ -143,23 +137,23 @@ static int twl4030_madc_bat_get_property(struct power_supply *psy,
 		break;
 	case POWER_SUPPLY_PROP_CHARGE_NOW: {
 			int percent = twl4030_madc_bat_voltscale(bat,
-					twl4030_madc_bat_get_voltage());
+					twl4030_madc_bat_get_voltage(bat));
 			val->intval = (percent * bat->pdata->capacity) / 100;
 			break;
 		}
 	case POWER_SUPPLY_PROP_CAPACITY:
 		val->intval = twl4030_madc_bat_voltscale(bat,
-					twl4030_madc_bat_get_voltage());
+					twl4030_madc_bat_get_voltage(bat));
 		break;
 	case POWER_SUPPLY_PROP_CHARGE_FULL:
 		val->intval = bat->pdata->capacity;
 		break;
 	case POWER_SUPPLY_PROP_TEMP:
-		val->intval = twl4030_madc_bat_get_temp();
+		val->intval = twl4030_madc_bat_get_temp(bat);
 		break;
 	case POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW: {
 			int percent = twl4030_madc_bat_voltscale(bat,
-					twl4030_madc_bat_get_voltage());
+					twl4030_madc_bat_get_voltage(bat));
 			/* in mAh */
 			int chg = (percent * (bat->pdata->capacity/1000))/100;
 
@@ -176,12 +170,19 @@ static int twl4030_madc_bat_get_property(struct power_supply *psy,
 
 static void twl4030_madc_bat_ext_changed(struct power_supply *psy)
 {
-	struct twl4030_madc_battery *bat = container_of(psy,
-					struct twl4030_madc_battery, psy);
-
-	power_supply_changed(&bat->psy);
+	power_supply_changed(psy);
 }
 
+static const struct power_supply_desc twl4030_madc_bat_desc = {
+	.name			= "twl4030_battery",
+	.type			= POWER_SUPPLY_TYPE_BATTERY,
+	.properties		= twl4030_madc_bat_props,
+	.num_properties		= ARRAY_SIZE(twl4030_madc_bat_props),
+	.get_property		= twl4030_madc_bat_get_property,
+	.external_power_changed	= twl4030_madc_bat_ext_changed,
+
+};
+
 static int twl4030_cmp(const void *a, const void *b)
 {
 	return ((struct twl4030_madc_bat_calibration *)b)->voltage -
@@ -192,19 +193,31 @@ static int twl4030_madc_battery_probe(struct platform_device *pdev)
 {
 	struct twl4030_madc_battery *twl4030_madc_bat;
 	struct twl4030_madc_bat_platform_data *pdata = pdev->dev.platform_data;
+	struct power_supply_config psy_cfg = {};
+	int ret = 0;
 
-	twl4030_madc_bat = kzalloc(sizeof(*twl4030_madc_bat), GFP_KERNEL);
+	twl4030_madc_bat = devm_kzalloc(&pdev->dev, sizeof(*twl4030_madc_bat),
+				GFP_KERNEL);
 	if (!twl4030_madc_bat)
 		return -ENOMEM;
 
-	twl4030_madc_bat->psy.name = "twl4030_battery";
-	twl4030_madc_bat->psy.type = POWER_SUPPLY_TYPE_BATTERY;
-	twl4030_madc_bat->psy.properties = twl4030_madc_bat_props;
-	twl4030_madc_bat->psy.num_properties =
-					ARRAY_SIZE(twl4030_madc_bat_props);
-	twl4030_madc_bat->psy.get_property = twl4030_madc_bat_get_property;
-	twl4030_madc_bat->psy.external_power_changed =
-					twl4030_madc_bat_ext_changed;
+	twl4030_madc_bat->channel_temp = iio_channel_get(&pdev->dev, "temp");
+	if (IS_ERR(twl4030_madc_bat->channel_temp)) {
+		ret = PTR_ERR(twl4030_madc_bat->channel_temp);
+		goto err;
+	}
+
+	twl4030_madc_bat->channel_ichg = iio_channel_get(&pdev->dev, "ichg");
+	if (IS_ERR(twl4030_madc_bat->channel_ichg)) {
+		ret = PTR_ERR(twl4030_madc_bat->channel_ichg);
+		goto err_temp;
+	}
+
+	twl4030_madc_bat->channel_vbat = iio_channel_get(&pdev->dev, "vbat");
+	if (IS_ERR(twl4030_madc_bat->channel_vbat)) {
+		ret = PTR_ERR(twl4030_madc_bat->channel_vbat);
+		goto err_ichg;
+	}
 
 	/* sort charging and discharging calibration data */
 	sort(pdata->charging, pdata->charging_size,
@@ -216,17 +229,36 @@ static int twl4030_madc_battery_probe(struct platform_device *pdev)
 
 	twl4030_madc_bat->pdata = pdata;
 	platform_set_drvdata(pdev, twl4030_madc_bat);
-	power_supply_register(&pdev->dev, &twl4030_madc_bat->psy);
+	psy_cfg.drv_data = twl4030_madc_bat;
+	twl4030_madc_bat->psy = power_supply_register(&pdev->dev,
+						      &twl4030_madc_bat_desc,
+						      &psy_cfg);
+	if (IS_ERR(twl4030_madc_bat->psy)) {
+		ret = PTR_ERR(twl4030_madc_bat->psy);
+		goto err_vbat;
+	}
 
 	return 0;
+
+err_vbat:
+	iio_channel_release(twl4030_madc_bat->channel_vbat);
+err_ichg:
+	iio_channel_release(twl4030_madc_bat->channel_ichg);
+err_temp:
+	iio_channel_release(twl4030_madc_bat->channel_temp);
+err:
+	return ret;
 }
 
 static int twl4030_madc_battery_remove(struct platform_device *pdev)
 {
 	struct twl4030_madc_battery *bat = platform_get_drvdata(pdev);
 
-	power_supply_unregister(&bat->psy);
-	kfree(bat);
+	power_supply_unregister(bat->psy);
+
+	iio_channel_release(bat->channel_vbat);
+	iio_channel_release(bat->channel_ichg);
+	iio_channel_release(bat->channel_temp);
 
 	return 0;
 }
@@ -243,3 +275,4 @@ module_platform_driver(twl4030_madc_battery_driver);
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Lukas Märdian <lukas@goldelico.com>");
 MODULE_DESCRIPTION("twl4030_madc battery driver");
+MODULE_ALIAS("platform:twl4030_madc_battery");
diff --git a/drivers/power/wm831x_backup.c b/drivers/power/wm831x_backup.c
index 56fb509..2e33109 100644
--- a/drivers/power/wm831x_backup.c
+++ b/drivers/power/wm831x_backup.c
@@ -21,7 +21,8 @@
 
 struct wm831x_backup {
 	struct wm831x *wm831x;
-	struct power_supply backup;
+	struct power_supply *backup;
+	struct power_supply_desc backup_desc;
 	char name[20];
 };
 
@@ -115,7 +116,7 @@ static int wm831x_backup_get_prop(struct power_supply *psy,
 				  enum power_supply_property psp,
 				  union power_supply_propval *val)
 {
-	struct wm831x_backup *devdata = dev_get_drvdata(psy->dev->parent);
+	struct wm831x_backup *devdata = dev_get_drvdata(psy->dev.parent);
 	struct wm831x *wm831x = devdata->wm831x;
 	int ret = 0;
 
@@ -166,8 +167,6 @@ static int wm831x_backup_probe(struct platform_device *pdev)
 	struct wm831x *wm831x = dev_get_drvdata(pdev->dev.parent);
 	struct wm831x_pdata *wm831x_pdata = wm831x->dev->platform_data;
 	struct wm831x_backup *devdata;
-	struct power_supply *backup;
-	int ret;
 
 	devdata = devm_kzalloc(&pdev->dev, sizeof(struct wm831x_backup),
 				GFP_KERNEL);
@@ -177,8 +176,6 @@ static int wm831x_backup_probe(struct platform_device *pdev)
 	devdata->wm831x = wm831x;
 	platform_set_drvdata(pdev, devdata);
 
-	backup = &devdata->backup;
-
 	/* We ignore configuration failures since we can still read
 	 * back the status without enabling the charger (which may
 	 * already be enabled anyway).
@@ -192,21 +189,22 @@ static int wm831x_backup_probe(struct platform_device *pdev)
 		snprintf(devdata->name, sizeof(devdata->name),
 			 "wm831x-backup");
 
-	backup->name = devdata->name;
-	backup->type = POWER_SUPPLY_TYPE_BATTERY;
-	backup->properties = wm831x_backup_props;
-	backup->num_properties = ARRAY_SIZE(wm831x_backup_props);
-	backup->get_property = wm831x_backup_get_prop;
-	ret = power_supply_register(&pdev->dev, backup);
+	devdata->backup_desc.name = devdata->name;
+	devdata->backup_desc.type = POWER_SUPPLY_TYPE_BATTERY;
+	devdata->backup_desc.properties = wm831x_backup_props;
+	devdata->backup_desc.num_properties = ARRAY_SIZE(wm831x_backup_props);
+	devdata->backup_desc.get_property = wm831x_backup_get_prop;
+	devdata->backup = power_supply_register(&pdev->dev,
+						&devdata->backup_desc, NULL);
 
-	return ret;
+	return PTR_ERR_OR_ZERO(devdata->backup);
 }
 
 static int wm831x_backup_remove(struct platform_device *pdev)
 {
 	struct wm831x_backup *devdata = platform_get_drvdata(pdev);
 
-	power_supply_unregister(&devdata->backup);
+	power_supply_unregister(devdata->backup);
 
 	return 0;
 }
diff --git a/drivers/power/wm831x_power.c b/drivers/power/wm831x_power.c
index 3bed2f5..0161bda 100644
--- a/drivers/power/wm831x_power.c
+++ b/drivers/power/wm831x_power.c
@@ -21,9 +21,12 @@
 
 struct wm831x_power {
 	struct wm831x *wm831x;
-	struct power_supply wall;
-	struct power_supply usb;
-	struct power_supply battery;
+	struct power_supply *wall;
+	struct power_supply *usb;
+	struct power_supply *battery;
+	struct power_supply_desc wall_desc;
+	struct power_supply_desc usb_desc;
+	struct power_supply_desc battery_desc;
 	char wall_name[20];
 	char usb_name[20];
 	char battery_name[20];
@@ -67,7 +70,7 @@ static int wm831x_wall_get_prop(struct power_supply *psy,
 				enum power_supply_property psp,
 				union power_supply_propval *val)
 {
-	struct wm831x_power *wm831x_power = dev_get_drvdata(psy->dev->parent);
+	struct wm831x_power *wm831x_power = dev_get_drvdata(psy->dev.parent);
 	struct wm831x *wm831x = wm831x_power->wm831x;
 	int ret = 0;
 
@@ -98,7 +101,7 @@ static int wm831x_usb_get_prop(struct power_supply *psy,
 			       enum power_supply_property psp,
 			       union power_supply_propval *val)
 {
-	struct wm831x_power *wm831x_power = dev_get_drvdata(psy->dev->parent);
+	struct wm831x_power *wm831x_power = dev_get_drvdata(psy->dev.parent);
 	struct wm831x *wm831x = wm831x_power->wm831x;
 	int ret = 0;
 
@@ -393,7 +396,7 @@ static int wm831x_bat_get_prop(struct power_supply *psy,
 			       enum power_supply_property psp,
 			       union power_supply_propval *val)
 {
-	struct wm831x_power *wm831x_power = dev_get_drvdata(psy->dev->parent);
+	struct wm831x_power *wm831x_power = dev_get_drvdata(psy->dev.parent);
 	struct wm831x *wm831x = wm831x_power->wm831x;
 	int ret = 0;
 
@@ -451,7 +454,7 @@ static irqreturn_t wm831x_bat_irq(int irq, void *data)
 	/* The battery charger is autonomous so we don't need to do
 	 * anything except kick user space */
 	if (wm831x_power->have_battery)
-		power_supply_changed(&wm831x_power->battery);
+		power_supply_changed(wm831x_power->battery);
 
 	return IRQ_HANDLED;
 }
@@ -482,9 +485,9 @@ static irqreturn_t wm831x_pwr_src_irq(int irq, void *data)
 
 	/* Just notify for everything - little harm in overnotifying. */
 	if (wm831x_power->have_battery)
-		power_supply_changed(&wm831x_power->battery);
-	power_supply_changed(&wm831x_power->usb);
-	power_supply_changed(&wm831x_power->wall);
+		power_supply_changed(wm831x_power->battery);
+	power_supply_changed(wm831x_power->usb);
+	power_supply_changed(wm831x_power->wall);
 
 	return IRQ_HANDLED;
 }
@@ -494,9 +497,6 @@ static int wm831x_power_probe(struct platform_device *pdev)
 	struct wm831x *wm831x = dev_get_drvdata(pdev->dev.parent);
 	struct wm831x_pdata *wm831x_pdata = wm831x->dev->platform_data;
 	struct wm831x_power *power;
-	struct power_supply *usb;
-	struct power_supply *battery;
-	struct power_supply *wall;
 	int ret, irq, i;
 
 	power = kzalloc(sizeof(struct wm831x_power), GFP_KERNEL);
@@ -506,10 +506,6 @@ static int wm831x_power_probe(struct platform_device *pdev)
 	power->wm831x = wm831x;
 	platform_set_drvdata(pdev, power);
 
-	usb = &power->usb;
-	battery = &power->battery;
-	wall = &power->wall;
-
 	if (wm831x_pdata && wm831x_pdata->wm831x_num) {
 		snprintf(power->wall_name, sizeof(power->wall_name),
 			 "wm831x-wall.%d", wm831x_pdata->wm831x_num);
@@ -531,23 +527,28 @@ static int wm831x_power_probe(struct platform_device *pdev)
 	 */
 	wm831x_config_battery(wm831x);
 
-	wall->name = power->wall_name;
-	wall->type = POWER_SUPPLY_TYPE_MAINS;
-	wall->properties = wm831x_wall_props;
-	wall->num_properties = ARRAY_SIZE(wm831x_wall_props);
-	wall->get_property = wm831x_wall_get_prop;
-	ret = power_supply_register(&pdev->dev, wall);
-	if (ret)
+	power->wall_desc.name = power->wall_name;
+	power->wall_desc.type = POWER_SUPPLY_TYPE_MAINS;
+	power->wall_desc.properties = wm831x_wall_props;
+	power->wall_desc.num_properties = ARRAY_SIZE(wm831x_wall_props);
+	power->wall_desc.get_property = wm831x_wall_get_prop;
+	power->wall = power_supply_register(&pdev->dev, &power->wall_desc,
+					    NULL);
+	if (IS_ERR(power->wall)) {
+		ret = PTR_ERR(power->wall);
 		goto err_kmalloc;
+	}
 
-	usb->name = power->usb_name,
-	usb->type = POWER_SUPPLY_TYPE_USB;
-	usb->properties = wm831x_usb_props;
-	usb->num_properties = ARRAY_SIZE(wm831x_usb_props);
-	usb->get_property = wm831x_usb_get_prop;
-	ret = power_supply_register(&pdev->dev, usb);
-	if (ret)
+	power->usb_desc.name = power->usb_name,
+	power->usb_desc.type = POWER_SUPPLY_TYPE_USB;
+	power->usb_desc.properties = wm831x_usb_props;
+	power->usb_desc.num_properties = ARRAY_SIZE(wm831x_usb_props);
+	power->usb_desc.get_property = wm831x_usb_get_prop;
+	power->usb = power_supply_register(&pdev->dev, &power->usb_desc, NULL);
+	if (IS_ERR(power->usb)) {
+		ret = PTR_ERR(power->usb);
 		goto err_wall;
+	}
 
 	ret = wm831x_reg_read(wm831x, WM831X_CHARGER_CONTROL_1);
 	if (ret < 0)
@@ -555,14 +556,18 @@ static int wm831x_power_probe(struct platform_device *pdev)
 	power->have_battery = ret & WM831X_CHG_ENA;
 
 	if (power->have_battery) {
-		    battery->name = power->battery_name;
-		    battery->properties = wm831x_bat_props;
-		    battery->num_properties = ARRAY_SIZE(wm831x_bat_props);
-		    battery->get_property = wm831x_bat_get_prop;
-		    battery->use_for_apm = 1;
-		    ret = power_supply_register(&pdev->dev, battery);
-		    if (ret)
-			    goto err_usb;
+		power->battery_desc.name = power->battery_name;
+		power->battery_desc.properties = wm831x_bat_props;
+		power->battery_desc.num_properties = ARRAY_SIZE(wm831x_bat_props);
+		power->battery_desc.get_property = wm831x_bat_get_prop;
+		power->battery_desc.use_for_apm = 1;
+		power->battery = power_supply_register(&pdev->dev,
+						       &power->battery_desc,
+						       NULL);
+		if (IS_ERR(power->battery)) {
+			ret = PTR_ERR(power->battery);
+			goto err_usb;
+		}
 	}
 
 	irq = wm831x_irq(wm831x, platform_get_irq_byname(pdev, "SYSLO"));
@@ -615,11 +620,11 @@ err_syslo:
 	free_irq(irq, power);
 err_battery:
 	if (power->have_battery)
-		power_supply_unregister(battery);
+		power_supply_unregister(power->battery);
 err_usb:
-	power_supply_unregister(usb);
+	power_supply_unregister(power->usb);
 err_wall:
-	power_supply_unregister(wall);
+	power_supply_unregister(power->wall);
 err_kmalloc:
 	kfree(power);
 	return ret;
@@ -645,9 +650,9 @@ static int wm831x_power_remove(struct platform_device *pdev)
 	free_irq(irq, wm831x_power);
 
 	if (wm831x_power->have_battery)
-		power_supply_unregister(&wm831x_power->battery);
-	power_supply_unregister(&wm831x_power->wall);
-	power_supply_unregister(&wm831x_power->usb);
+		power_supply_unregister(wm831x_power->battery);
+	power_supply_unregister(wm831x_power->wall);
+	power_supply_unregister(wm831x_power->usb);
 	kfree(wm831x_power);
 	return 0;
 }
diff --git a/drivers/power/wm8350_power.c b/drivers/power/wm8350_power.c
index b3607e2..5c58806 100644
--- a/drivers/power/wm8350_power.c
+++ b/drivers/power/wm8350_power.c
@@ -196,14 +196,14 @@ static irqreturn_t wm8350_charger_handler(int irq, void *data)
 		break;
 	case WM8350_IRQ_CHG_TO:
 		dev_err(wm8350->dev, "charger timeout\n");
-		power_supply_changed(&power->battery);
+		power_supply_changed(power->battery);
 		break;
 
 	case WM8350_IRQ_CHG_BAT_HOT:
 	case WM8350_IRQ_CHG_BAT_COLD:
 	case WM8350_IRQ_CHG_START:
 	case WM8350_IRQ_CHG_END:
-		power_supply_changed(&power->battery);
+		power_supply_changed(power->battery);
 		break;
 
 	case WM8350_IRQ_CHG_FAST_RDY:
@@ -231,9 +231,9 @@ static irqreturn_t wm8350_charger_handler(int irq, void *data)
 	case WM8350_IRQ_EXT_WALL_FB:
 		wm8350_charger_config(wm8350, policy);
 	case WM8350_IRQ_EXT_BAT_FB:   /* Fall through */
-		power_supply_changed(&power->battery);
-		power_supply_changed(&power->usb);
-		power_supply_changed(&power->ac);
+		power_supply_changed(power->battery);
+		power_supply_changed(power->usb);
+		power_supply_changed(power->ac);
 		break;
 
 	default:
@@ -250,7 +250,7 @@ static int wm8350_ac_get_prop(struct power_supply *psy,
 			      enum power_supply_property psp,
 			      union power_supply_propval *val)
 {
-	struct wm8350 *wm8350 = dev_get_drvdata(psy->dev->parent);
+	struct wm8350 *wm8350 = dev_get_drvdata(psy->dev.parent);
 	int ret = 0;
 
 	switch (psp) {
@@ -280,7 +280,7 @@ static int wm8350_usb_get_prop(struct power_supply *psy,
 			       enum power_supply_property psp,
 			       union power_supply_propval *val)
 {
-	struct wm8350 *wm8350 = dev_get_drvdata(psy->dev->parent);
+	struct wm8350 *wm8350 = dev_get_drvdata(psy->dev.parent);
 	int ret = 0;
 
 	switch (psp) {
@@ -346,7 +346,7 @@ static int wm8350_bat_get_property(struct power_supply *psy,
 				   enum power_supply_property psp,
 				   union power_supply_propval *val)
 {
-	struct wm8350 *wm8350 = dev_get_drvdata(psy->dev->parent);
+	struct wm8350 *wm8350 = dev_get_drvdata(psy->dev.parent);
 	int ret = 0;
 
 	switch (psp) {
@@ -382,6 +382,30 @@ static enum power_supply_property wm8350_bat_props[] = {
 	POWER_SUPPLY_PROP_CHARGE_TYPE,
 };
 
+static const struct power_supply_desc wm8350_ac_desc = {
+	.name		= "wm8350-ac",
+	.type		= POWER_SUPPLY_TYPE_MAINS,
+	.properties	= wm8350_ac_props,
+	.num_properties	= ARRAY_SIZE(wm8350_ac_props),
+	.get_property	= wm8350_ac_get_prop,
+};
+
+static const struct power_supply_desc wm8350_battery_desc = {
+	.name		= "wm8350-battery",
+	.properties	= wm8350_bat_props,
+	.num_properties	= ARRAY_SIZE(wm8350_bat_props),
+	.get_property	= wm8350_bat_get_property,
+	.use_for_apm	= 1,
+};
+
+static const struct power_supply_desc wm8350_usb_desc = {
+	.name		= "wm8350-usb",
+	.type		= POWER_SUPPLY_TYPE_USB,
+	.properties	= wm8350_usb_props,
+	.num_properties	= ARRAY_SIZE(wm8350_usb_props),
+	.get_property	= wm8350_usb_get_prop,
+};
+
 /*********************************************************************
  *		Initialisation
  *********************************************************************/
@@ -447,37 +471,24 @@ static int wm8350_power_probe(struct platform_device *pdev)
 	struct wm8350 *wm8350 = platform_get_drvdata(pdev);
 	struct wm8350_power *power = &wm8350->power;
 	struct wm8350_charger_policy *policy = power->policy;
-	struct power_supply *usb = &power->usb;
-	struct power_supply *battery = &power->battery;
-	struct power_supply *ac = &power->ac;
 	int ret;
 
-	ac->name = "wm8350-ac";
-	ac->type = POWER_SUPPLY_TYPE_MAINS;
-	ac->properties = wm8350_ac_props;
-	ac->num_properties = ARRAY_SIZE(wm8350_ac_props);
-	ac->get_property = wm8350_ac_get_prop;
-	ret = power_supply_register(&pdev->dev, ac);
-	if (ret)
-		return ret;
-
-	battery->name = "wm8350-battery";
-	battery->properties = wm8350_bat_props;
-	battery->num_properties = ARRAY_SIZE(wm8350_bat_props);
-	battery->get_property = wm8350_bat_get_property;
-	battery->use_for_apm = 1;
-	ret = power_supply_register(&pdev->dev, battery);
-	if (ret)
+	power->ac = power_supply_register(&pdev->dev, &wm8350_ac_desc, NULL);
+	if (IS_ERR(power->ac))
+		return PTR_ERR(power->ac);
+
+	power->battery = power_supply_register(&pdev->dev, &wm8350_battery_desc,
+					       NULL);
+	if (IS_ERR(power->battery)) {
+		ret = PTR_ERR(power->battery);
 		goto battery_failed;
+	}
 
-	usb->name = "wm8350-usb",
-	usb->type = POWER_SUPPLY_TYPE_USB;
-	usb->properties = wm8350_usb_props;
-	usb->num_properties = ARRAY_SIZE(wm8350_usb_props);
-	usb->get_property = wm8350_usb_get_prop;
-	ret = power_supply_register(&pdev->dev, usb);
-	if (ret)
+	power->usb = power_supply_register(&pdev->dev, &wm8350_usb_desc, NULL);
+	if (IS_ERR(power->usb)) {
+		ret = PTR_ERR(power->usb);
 		goto usb_failed;
+	}
 
 	ret = device_create_file(&pdev->dev, &dev_attr_charger_state);
 	if (ret < 0)
@@ -494,9 +505,9 @@ static int wm8350_power_probe(struct platform_device *pdev)
 	return ret;
 
 usb_failed:
-	power_supply_unregister(battery);
+	power_supply_unregister(power->battery);
 battery_failed:
-	power_supply_unregister(ac);
+	power_supply_unregister(power->ac);
 
 	return ret;
 }
@@ -508,9 +519,9 @@ static int wm8350_power_remove(struct platform_device *pdev)
 
 	free_charger_irq(wm8350);
 	device_remove_file(&pdev->dev, &dev_attr_charger_state);
-	power_supply_unregister(&power->battery);
-	power_supply_unregister(&power->ac);
-	power_supply_unregister(&power->usb);
+	power_supply_unregister(power->battery);
+	power_supply_unregister(power->ac);
+	power_supply_unregister(power->usb);
 	return 0;
 }
 
diff --git a/drivers/power/wm97xx_battery.c b/drivers/power/wm97xx_battery.c
index a8e6203..c2f09ed 100644
--- a/drivers/power/wm97xx_battery.c
+++ b/drivers/power/wm97xx_battery.c
@@ -32,20 +32,20 @@ static enum power_supply_property *prop;
 
 static unsigned long wm97xx_read_bat(struct power_supply *bat_ps)
 {
-	struct wm97xx_pdata *wmdata = bat_ps->dev->parent->platform_data;
+	struct wm97xx_pdata *wmdata = bat_ps->dev.parent->platform_data;
 	struct wm97xx_batt_pdata *pdata = wmdata->batt_pdata;
 
-	return wm97xx_read_aux_adc(dev_get_drvdata(bat_ps->dev->parent),
+	return wm97xx_read_aux_adc(dev_get_drvdata(bat_ps->dev.parent),
 					pdata->batt_aux) * pdata->batt_mult /
 					pdata->batt_div;
 }
 
 static unsigned long wm97xx_read_temp(struct power_supply *bat_ps)
 {
-	struct wm97xx_pdata *wmdata = bat_ps->dev->parent->platform_data;
+	struct wm97xx_pdata *wmdata = bat_ps->dev.parent->platform_data;
 	struct wm97xx_batt_pdata *pdata = wmdata->batt_pdata;
 
-	return wm97xx_read_aux_adc(dev_get_drvdata(bat_ps->dev->parent),
+	return wm97xx_read_aux_adc(dev_get_drvdata(bat_ps->dev.parent),
 					pdata->temp_aux) * pdata->temp_mult /
 					pdata->temp_div;
 }
@@ -54,7 +54,7 @@ static int wm97xx_bat_get_property(struct power_supply *bat_ps,
 			    enum power_supply_property psp,
 			    union power_supply_propval *val)
 {
-	struct wm97xx_pdata *wmdata = bat_ps->dev->parent->platform_data;
+	struct wm97xx_pdata *wmdata = bat_ps->dev.parent->platform_data;
 	struct wm97xx_batt_pdata *pdata = wmdata->batt_pdata;
 
 	switch (psp) {
@@ -105,7 +105,7 @@ static void wm97xx_bat_external_power_changed(struct power_supply *bat_ps)
 static void wm97xx_bat_update(struct power_supply *bat_ps)
 {
 	int old_status = bat_status;
-	struct wm97xx_pdata *wmdata = bat_ps->dev->parent->platform_data;
+	struct wm97xx_pdata *wmdata = bat_ps->dev.parent->platform_data;
 	struct wm97xx_batt_pdata *pdata = wmdata->batt_pdata;
 
 	mutex_lock(&work_lock);
@@ -117,7 +117,7 @@ static void wm97xx_bat_update(struct power_supply *bat_ps)
 			POWER_SUPPLY_STATUS_UNKNOWN;
 
 	if (old_status != bat_status) {
-		pr_debug("%s: %i -> %i\n", bat_ps->name, old_status,
+		pr_debug("%s: %i -> %i\n", bat_ps->desc->name, old_status,
 					bat_status);
 		power_supply_changed(bat_ps);
 	}
@@ -125,7 +125,8 @@ static void wm97xx_bat_update(struct power_supply *bat_ps)
 	mutex_unlock(&work_lock);
 }
 
-static struct power_supply bat_ps = {
+static struct power_supply *bat_psy;
+static struct power_supply_desc bat_psy_desc = {
 	.type			= POWER_SUPPLY_TYPE_BATTERY,
 	.get_property		= wm97xx_bat_get_property,
 	.external_power_changed = wm97xx_bat_external_power_changed,
@@ -134,7 +135,7 @@ static struct power_supply bat_ps = {
 
 static void wm97xx_bat_work(struct work_struct *work)
 {
-	wm97xx_bat_update(&bat_ps);
+	wm97xx_bat_update(bat_psy);
 }
 
 static irqreturn_t wm97xx_chrg_irq(int irq, void *data)
@@ -237,18 +238,20 @@ static int wm97xx_bat_probe(struct platform_device *dev)
 		dev_info(&dev->dev, "Please consider setting proper battery "
 				"name in platform definition file, falling "
 				"back to name \"wm97xx-batt\"\n");
-		bat_ps.name = "wm97xx-batt";
+		bat_psy_desc.name = "wm97xx-batt";
 	} else
-		bat_ps.name = pdata->batt_name;
+		bat_psy_desc.name = pdata->batt_name;
 
-	bat_ps.properties = prop;
-	bat_ps.num_properties = props;
+	bat_psy_desc.properties = prop;
+	bat_psy_desc.num_properties = props;
 
-	ret = power_supply_register(&dev->dev, &bat_ps);
-	if (!ret)
+	bat_psy = power_supply_register(&dev->dev, &bat_psy_desc, NULL);
+	if (!IS_ERR(bat_psy)) {
 		schedule_work(&bat_work);
-	else
+	} else {
+		ret = PTR_ERR(bat_psy);
 		goto err4;
+	}
 
 	return 0;
 err4:
@@ -273,7 +276,7 @@ static int wm97xx_bat_remove(struct platform_device *dev)
 		gpio_free(pdata->charge_gpio);
 	}
 	cancel_work_sync(&bat_work);
-	power_supply_unregister(&bat_ps);
+	power_supply_unregister(bat_psy);
 	kfree(prop);
 	return 0;
 }
diff --git a/drivers/power/z2_battery.c b/drivers/power/z2_battery.c
index 814d2e3..b201e3f 100644
--- a/drivers/power/z2_battery.c
+++ b/drivers/power/z2_battery.c
@@ -21,12 +21,13 @@
 #define	Z2_DEFAULT_NAME	"Z2"
 
 struct z2_charger {
-	struct z2_battery_info	*info;
-	int			bat_status;
-	struct i2c_client	*client;
-	struct power_supply	batt_ps;
-	struct mutex		work_lock;
-	struct work_struct	bat_work;
+	struct z2_battery_info		*info;
+	int				bat_status;
+	struct i2c_client		*client;
+	struct power_supply		*batt_ps;
+	struct power_supply_desc	batt_ps_desc;
+	struct mutex			work_lock;
+	struct work_struct		bat_work;
 };
 
 static unsigned long z2_read_bat(struct z2_charger *charger)
@@ -44,8 +45,7 @@ static int z2_batt_get_property(struct power_supply *batt_ps,
 			    enum power_supply_property psp,
 			    union power_supply_propval *val)
 {
-	struct z2_charger *charger = container_of(batt_ps, struct z2_charger,
-						batt_ps);
+	struct z2_charger *charger = power_supply_get_drvdata(batt_ps);
 	struct z2_battery_info *info = charger->info;
 
 	switch (psp) {
@@ -85,8 +85,8 @@ static int z2_batt_get_property(struct power_supply *batt_ps,
 
 static void z2_batt_ext_power_changed(struct power_supply *batt_ps)
 {
-	struct z2_charger *charger = container_of(batt_ps, struct z2_charger,
-						batt_ps);
+	struct z2_charger *charger = power_supply_get_drvdata(batt_ps);
+
 	schedule_work(&charger->bat_work);
 }
 
@@ -106,9 +106,10 @@ static void z2_batt_update(struct z2_charger *charger)
 		POWER_SUPPLY_STATUS_UNKNOWN;
 
 	if (old_status != charger->bat_status) {
-		pr_debug("%s: %i -> %i\n", charger->batt_ps.name, old_status,
-			charger->bat_status);
-		power_supply_changed(&charger->batt_ps);
+		pr_debug("%s: %i -> %i\n", charger->batt_ps->desc->name,
+				old_status,
+				charger->bat_status);
+		power_supply_changed(charger->batt_ps);
 	}
 
 	mutex_unlock(&charger->work_lock);
@@ -166,16 +167,17 @@ static int z2_batt_ps_init(struct z2_charger *charger, int props)
 				"Please consider setting proper battery "
 				"name in platform definition file, falling "
 				"back to name \" Z2_DEFAULT_NAME \"\n");
-		charger->batt_ps.name = Z2_DEFAULT_NAME;
+		charger->batt_ps_desc.name = Z2_DEFAULT_NAME;
 	} else
-		charger->batt_ps.name = info->batt_name;
+		charger->batt_ps_desc.name = info->batt_name;
 
-	charger->batt_ps.properties		= prop;
-	charger->batt_ps.num_properties		= props;
-	charger->batt_ps.type			= POWER_SUPPLY_TYPE_BATTERY;
-	charger->batt_ps.get_property		= z2_batt_get_property;
-	charger->batt_ps.external_power_changed	= z2_batt_ext_power_changed;
-	charger->batt_ps.use_for_apm		= 1;
+	charger->batt_ps_desc.properties	= prop;
+	charger->batt_ps_desc.num_properties	= props;
+	charger->batt_ps_desc.type		= POWER_SUPPLY_TYPE_BATTERY;
+	charger->batt_ps_desc.get_property	= z2_batt_get_property;
+	charger->batt_ps_desc.external_power_changed =
+						z2_batt_ext_power_changed;
+	charger->batt_ps_desc.use_for_apm	= 1;
 
 	return 0;
 }
@@ -187,6 +189,7 @@ static int z2_batt_probe(struct i2c_client *client,
 	int props = 1;	/* POWER_SUPPLY_PROP_PRESENT */
 	struct z2_charger *charger;
 	struct z2_battery_info *info = client->dev.platform_data;
+	struct power_supply_config psy_cfg = {};
 
 	if (info == NULL) {
 		dev_err(&client->dev,
@@ -203,6 +206,7 @@ static int z2_batt_probe(struct i2c_client *client,
 	charger->info = info;
 	charger->client = client;
 	i2c_set_clientdata(client, charger);
+	psy_cfg.drv_data = charger;
 
 	mutex_init(&charger->work_lock);
 
@@ -230,16 +234,20 @@ static int z2_batt_probe(struct i2c_client *client,
 
 	INIT_WORK(&charger->bat_work, z2_batt_work);
 
-	ret = power_supply_register(&client->dev, &charger->batt_ps);
-	if (ret)
+	charger->batt_ps = power_supply_register(&client->dev,
+						 &charger->batt_ps_desc,
+						 &psy_cfg);
+	if (IS_ERR(charger->batt_ps)) {
+		ret = PTR_ERR(charger->batt_ps);
 		goto err4;
+	}
 
 	schedule_work(&charger->bat_work);
 
 	return 0;
 
 err4:
-	kfree(charger->batt_ps.properties);
+	kfree(charger->batt_ps_desc.properties);
 err3:
 	if (info->charge_gpio >= 0 && gpio_is_valid(info->charge_gpio))
 		free_irq(gpio_to_irq(info->charge_gpio), charger);
@@ -257,9 +265,9 @@ static int z2_batt_remove(struct i2c_client *client)
 	struct z2_battery_info *info = charger->info;
 
 	cancel_work_sync(&charger->bat_work);
-	power_supply_unregister(&charger->batt_ps);
+	power_supply_unregister(charger->batt_ps);
 
-	kfree(charger->batt_ps.properties);
+	kfree(charger->batt_ps_desc.properties);
 	if (info->charge_gpio >= 0 && gpio_is_valid(info->charge_gpio)) {
 		free_irq(gpio_to_irq(info->charge_gpio), charger);
 		gpio_free(info->charge_gpio);
diff --git a/drivers/powercap/intel_rapl.c b/drivers/powercap/intel_rapl.c
index 97b5e4e..63d4033 100644
--- a/drivers/powercap/intel_rapl.c
+++ b/drivers/powercap/intel_rapl.c
@@ -73,7 +73,7 @@
 
 #define TIME_WINDOW_MAX_MSEC 40000
 #define TIME_WINDOW_MIN_MSEC 250
-
+#define ENERGY_UNIT_SCALE    1000 /* scale from driver unit to powercap unit */
 enum unit_type {
 	ARBITRARY_UNIT, /* no translation */
 	POWER_UNIT,
@@ -158,6 +158,7 @@ struct rapl_domain {
 	struct rapl_power_limit rpl[NR_POWER_LIMITS];
 	u64 attr_map; /* track capabilities */
 	unsigned int state;
+	unsigned int domain_energy_unit;
 	int package_id;
 };
 #define power_zone_to_rapl_domain(_zone) \
@@ -190,6 +191,7 @@ struct rapl_defaults {
 	void (*set_floor_freq)(struct rapl_domain *rd, bool mode);
 	u64 (*compute_time_window)(struct rapl_package *rp, u64 val,
 				bool to_raw);
+	unsigned int dram_domain_energy_unit;
 };
 static struct rapl_defaults *rapl_defaults;
 
@@ -227,7 +229,8 @@ static int rapl_read_data_raw(struct rapl_domain *rd,
 static int rapl_write_data_raw(struct rapl_domain *rd,
 			enum rapl_primitives prim,
 			unsigned long long value);
-static u64 rapl_unit_xlate(int package, enum unit_type type, u64 value,
+static u64 rapl_unit_xlate(struct rapl_domain *rd, int package,
+			enum unit_type type, u64 value,
 			int to_raw);
 static void package_power_limit_irq_save(int package_id);
 
@@ -305,7 +308,9 @@ static int get_energy_counter(struct powercap_zone *power_zone, u64 *energy_raw)
 
 static int get_max_energy_counter(struct powercap_zone *pcd_dev, u64 *energy)
 {
-	*energy = rapl_unit_xlate(0, ENERGY_UNIT, ENERGY_STATUS_MASK, 0);
+	struct rapl_domain *rd = power_zone_to_rapl_domain(pcd_dev);
+
+	*energy = rapl_unit_xlate(rd, 0, ENERGY_UNIT, ENERGY_STATUS_MASK, 0);
 	return 0;
 }
 
@@ -639,6 +644,11 @@ static void rapl_init_domains(struct rapl_package *rp)
 			rd->msrs[4] = MSR_DRAM_POWER_INFO;
 			rd->rpl[0].prim_id = PL1_ENABLE;
 			rd->rpl[0].name = pl1_name;
+			rd->domain_energy_unit =
+				rapl_defaults->dram_domain_energy_unit;
+			if (rd->domain_energy_unit)
+				pr_info("DRAM domain energy unit %dpj\n",
+					rd->domain_energy_unit);
 			break;
 		}
 		if (mask) {
@@ -648,11 +658,13 @@ static void rapl_init_domains(struct rapl_package *rp)
 	}
 }
 
-static u64 rapl_unit_xlate(int package, enum unit_type type, u64 value,
+static u64 rapl_unit_xlate(struct rapl_domain *rd, int package,
+			enum unit_type type, u64 value,
 			int to_raw)
 {
 	u64 units = 1;
 	struct rapl_package *rp;
+	u64 scale = 1;
 
 	rp = find_package_by_id(package);
 	if (!rp)
@@ -663,7 +675,12 @@ static u64 rapl_unit_xlate(int package, enum unit_type type, u64 value,
 		units = rp->power_unit;
 		break;
 	case ENERGY_UNIT:
-		units = rp->energy_unit;
+		scale = ENERGY_UNIT_SCALE;
+		/* per domain unit takes precedence */
+		if (rd && rd->domain_energy_unit)
+			units = rd->domain_energy_unit;
+		else
+			units = rp->energy_unit;
 		break;
 	case TIME_UNIT:
 		return rapl_defaults->compute_time_window(rp, value, to_raw);
@@ -673,11 +690,11 @@ static u64 rapl_unit_xlate(int package, enum unit_type type, u64 value,
 	};
 
 	if (to_raw)
-		return div64_u64(value, units);
+		return div64_u64(value, units) * scale;
 
 	value *= units;
 
-	return value;
+	return div64_u64(value, scale);
 }
 
 /* in the order of enum rapl_primitives */
@@ -773,7 +790,7 @@ static int rapl_read_data_raw(struct rapl_domain *rd,
 	final = value & rp->mask;
 	final = final >> rp->shift;
 	if (xlate)
-		*data = rapl_unit_xlate(rd->package_id, rp->unit, final, 0);
+		*data = rapl_unit_xlate(rd, rd->package_id, rp->unit, final, 0);
 	else
 		*data = final;
 
@@ -799,7 +816,7 @@ static int rapl_write_data_raw(struct rapl_domain *rd,
 			"failed to read msr 0x%x on cpu %d\n", msr, cpu);
 		return -EIO;
 	}
-	value = rapl_unit_xlate(rd->package_id, rp->unit, value, 1);
+	value = rapl_unit_xlate(rd, rd->package_id, rp->unit, value, 1);
 	msr_val &= ~rp->mask;
 	msr_val |= value << rp->shift;
 	if (wrmsrl_safe_on_cpu(cpu, msr, msr_val)) {
@@ -818,7 +835,7 @@ static int rapl_write_data_raw(struct rapl_domain *rd,
  * calculate units differ on different CPUs.
  * We convert the units to below format based on CPUs.
  * i.e.
- * energy unit: microJoules : Represented in microJoules by default
+ * energy unit: picoJoules  : Represented in picoJoules by default
  * power unit : microWatts  : Represented in milliWatts by default
  * time unit  : microseconds: Represented in seconds by default
  */
@@ -834,7 +851,7 @@ static int rapl_check_unit_core(struct rapl_package *rp, int cpu)
 	}
 
 	value = (msr_val & ENERGY_UNIT_MASK) >> ENERGY_UNIT_OFFSET;
-	rp->energy_unit = 1000000 / (1 << value);
+	rp->energy_unit = ENERGY_UNIT_SCALE * 1000000 / (1 << value);
 
 	value = (msr_val & POWER_UNIT_MASK) >> POWER_UNIT_OFFSET;
 	rp->power_unit = 1000000 / (1 << value);
@@ -842,7 +859,7 @@ static int rapl_check_unit_core(struct rapl_package *rp, int cpu)
 	value = (msr_val & TIME_UNIT_MASK) >> TIME_UNIT_OFFSET;
 	rp->time_unit = 1000000 / (1 << value);
 
-	pr_debug("Core CPU package %d energy=%duJ, time=%dus, power=%duW\n",
+	pr_debug("Core CPU package %d energy=%dpJ, time=%dus, power=%duW\n",
 		rp->id, rp->energy_unit, rp->time_unit, rp->power_unit);
 
 	return 0;
@@ -859,7 +876,7 @@ static int rapl_check_unit_atom(struct rapl_package *rp, int cpu)
 		return -ENODEV;
 	}
 	value = (msr_val & ENERGY_UNIT_MASK) >> ENERGY_UNIT_OFFSET;
-	rp->energy_unit = 1 << value;
+	rp->energy_unit = ENERGY_UNIT_SCALE * 1 << value;
 
 	value = (msr_val & POWER_UNIT_MASK) >> POWER_UNIT_OFFSET;
 	rp->power_unit = (1 << value) * 1000;
@@ -867,7 +884,7 @@ static int rapl_check_unit_atom(struct rapl_package *rp, int cpu)
 	value = (msr_val & TIME_UNIT_MASK) >> TIME_UNIT_OFFSET;
 	rp->time_unit = 1000000 / (1 << value);
 
-	pr_debug("Atom package %d energy=%duJ, time=%dus, power=%duW\n",
+	pr_debug("Atom package %d energy=%dpJ, time=%dus, power=%duW\n",
 		rp->id, rp->energy_unit, rp->time_unit, rp->power_unit);
 
 	return 0;
@@ -1017,6 +1034,13 @@ static const struct rapl_defaults rapl_defaults_core = {
 	.compute_time_window = rapl_compute_time_window_core,
 };
 
+static const struct rapl_defaults rapl_defaults_hsw_server = {
+	.check_unit = rapl_check_unit_core,
+	.set_floor_freq = set_floor_freq_default,
+	.compute_time_window = rapl_compute_time_window_core,
+	.dram_domain_energy_unit = 15300,
+};
+
 static const struct rapl_defaults rapl_defaults_atom = {
 	.check_unit = rapl_check_unit_atom,
 	.set_floor_freq = set_floor_freq_atom,
@@ -1037,7 +1061,7 @@ static const struct x86_cpu_id rapl_ids[] = {
 	RAPL_CPU(0x3a, rapl_defaults_core),/* Ivy Bridge */
 	RAPL_CPU(0x3c, rapl_defaults_core),/* Haswell */
 	RAPL_CPU(0x3d, rapl_defaults_core),/* Broadwell */
-	RAPL_CPU(0x3f, rapl_defaults_core),/* Haswell */
+	RAPL_CPU(0x3f, rapl_defaults_hsw_server),/* Haswell servers */
 	RAPL_CPU(0x45, rapl_defaults_core),/* Haswell ULT */
 	RAPL_CPU(0x4C, rapl_defaults_atom),/* Braswell */
 	RAPL_CPU(0x4A, rapl_defaults_atom),/* Tangier */
diff --git a/drivers/regulator/act8865-regulator.c b/drivers/regulator/act8865-regulator.c
index 9eec453..2ff73d7 100644
--- a/drivers/regulator/act8865-regulator.c
+++ b/drivers/regulator/act8865-regulator.c
@@ -29,6 +29,35 @@
 #include <linux/regmap.h>
 
 /*
+ * ACT8600 Global Register Map.
+ */
+#define ACT8600_SYS_MODE	0x00
+#define ACT8600_SYS_CTRL	0x01
+#define ACT8600_DCDC1_VSET	0x10
+#define ACT8600_DCDC1_CTRL	0x12
+#define ACT8600_DCDC2_VSET	0x20
+#define ACT8600_DCDC2_CTRL	0x22
+#define ACT8600_DCDC3_VSET	0x30
+#define ACT8600_DCDC3_CTRL	0x32
+#define ACT8600_SUDCDC4_VSET	0x40
+#define ACT8600_SUDCDC4_CTRL	0x41
+#define ACT8600_LDO5_VSET	0x50
+#define ACT8600_LDO5_CTRL	0x51
+#define ACT8600_LDO6_VSET	0x60
+#define ACT8600_LDO6_CTRL	0x61
+#define ACT8600_LDO7_VSET	0x70
+#define ACT8600_LDO7_CTRL	0x71
+#define ACT8600_LDO8_VSET	0x80
+#define ACT8600_LDO8_CTRL	0x81
+#define ACT8600_LDO910_CTRL	0x91
+#define ACT8600_APCH0		0xA1
+#define ACT8600_APCH1		0xA8
+#define ACT8600_APCH2		0xA9
+#define ACT8600_APCH_STAT	0xAA
+#define ACT8600_OTG0		0xB0
+#define ACT8600_OTG1		0xB2
+
+/*
  * ACT8846 Global Register Map.
  */
 #define	ACT8846_SYS0		0x00
@@ -94,10 +123,15 @@
 #define	ACT8865_ENA		0x80	/* ON - [7] */
 #define	ACT8865_VSEL_MASK	0x3F	/* VSET - [5:0] */
 
+
+#define ACT8600_LDO10_ENA		0x40	/* ON - [6] */
+#define ACT8600_SUDCDC_VSEL_MASK	0xFF	/* SUDCDC VSET - [7:0] */
+
 /*
  * ACT8865 voltage number
  */
 #define	ACT8865_VOLTAGE_NUM	64
+#define ACT8600_SUDCDC_VOLTAGE_NUM	255
 
 struct act8865 {
 	struct regmap *regmap;
@@ -116,6 +150,13 @@ static const struct regulator_linear_range act8865_voltage_ranges[] = {
 	REGULATOR_LINEAR_RANGE(2400000, 48, 63, 100000),
 };
 
+static const struct regulator_linear_range act8600_sudcdc_voltage_ranges[] = {
+	REGULATOR_LINEAR_RANGE(3000000, 0, 63, 0),
+	REGULATOR_LINEAR_RANGE(3000000, 64, 159, 100000),
+	REGULATOR_LINEAR_RANGE(12600000, 160, 191, 200000),
+	REGULATOR_LINEAR_RANGE(19000000, 191, 255, 400000),
+};
+
 static struct regulator_ops act8865_ops = {
 	.list_voltage		= regulator_list_voltage_linear_range,
 	.map_voltage		= regulator_map_voltage_linear_range,
@@ -126,9 +167,16 @@ static struct regulator_ops act8865_ops = {
 	.is_enabled		= regulator_is_enabled_regmap,
 };
 
-#define ACT88xx_REG(_name, _family, _id, _vsel_reg)			\
+static struct regulator_ops act8865_ldo_ops = {
+	.enable			= regulator_enable_regmap,
+	.disable		= regulator_disable_regmap,
+	.is_enabled		= regulator_is_enabled_regmap,
+};
+
+#define ACT88xx_REG(_name, _family, _id, _vsel_reg, _supply)		\
 	[_family##_ID_##_id] = {					\
 		.name			= _name,			\
+		.supply_name		= _supply,			\
 		.id			= _family##_ID_##_id,		\
 		.type			= REGULATOR_VOLTAGE,		\
 		.ops			= &act8865_ops,			\
@@ -142,33 +190,80 @@ static struct regulator_ops act8865_ops = {
 		.owner			= THIS_MODULE,			\
 	}
 
+static const struct regulator_desc act8600_regulators[] = {
+	ACT88xx_REG("DCDC1", ACT8600, DCDC1, VSET, "vp1"),
+	ACT88xx_REG("DCDC2", ACT8600, DCDC2, VSET, "vp2"),
+	ACT88xx_REG("DCDC3", ACT8600, DCDC3, VSET, "vp3"),
+	{
+		.name = "SUDCDC_REG4",
+		.id = ACT8600_ID_SUDCDC4,
+		.ops = &act8865_ops,
+		.type = REGULATOR_VOLTAGE,
+		.n_voltages = ACT8600_SUDCDC_VOLTAGE_NUM,
+		.linear_ranges = act8600_sudcdc_voltage_ranges,
+		.n_linear_ranges = ARRAY_SIZE(act8600_sudcdc_voltage_ranges),
+		.vsel_reg = ACT8600_SUDCDC4_VSET,
+		.vsel_mask = ACT8600_SUDCDC_VSEL_MASK,
+		.enable_reg = ACT8600_SUDCDC4_CTRL,
+		.enable_mask = ACT8865_ENA,
+		.owner = THIS_MODULE,
+	},
+	ACT88xx_REG("LDO5", ACT8600, LDO5, VSET, "inl"),
+	ACT88xx_REG("LDO6", ACT8600, LDO6, VSET, "inl"),
+	ACT88xx_REG("LDO7", ACT8600, LDO7, VSET, "inl"),
+	ACT88xx_REG("LDO8", ACT8600, LDO8, VSET, "inl"),
+	{
+		.name = "LDO_REG9",
+		.id = ACT8600_ID_LDO9,
+		.ops = &act8865_ldo_ops,
+		.type = REGULATOR_VOLTAGE,
+		.n_voltages = 1,
+		.fixed_uV = 1800000,
+		.enable_reg = ACT8600_LDO910_CTRL,
+		.enable_mask = ACT8865_ENA,
+		.owner = THIS_MODULE,
+	},
+	{
+		.name = "LDO_REG10",
+		.id = ACT8600_ID_LDO10,
+		.ops = &act8865_ldo_ops,
+		.type = REGULATOR_VOLTAGE,
+		.n_voltages = 1,
+		.fixed_uV = 1200000,
+		.enable_reg = ACT8600_LDO910_CTRL,
+		.enable_mask = ACT8600_LDO10_ENA,
+		.owner = THIS_MODULE,
+	},
+};
+
 static const struct regulator_desc act8846_regulators[] = {
-	ACT88xx_REG("REG1", ACT8846, REG1, VSET),
-	ACT88xx_REG("REG2", ACT8846, REG2, VSET0),
-	ACT88xx_REG("REG3", ACT8846, REG3, VSET0),
-	ACT88xx_REG("REG4", ACT8846, REG4, VSET0),
-	ACT88xx_REG("REG5", ACT8846, REG5, VSET),
-	ACT88xx_REG("REG6", ACT8846, REG6, VSET),
-	ACT88xx_REG("REG7", ACT8846, REG7, VSET),
-	ACT88xx_REG("REG8", ACT8846, REG8, VSET),
-	ACT88xx_REG("REG9", ACT8846, REG9, VSET),
-	ACT88xx_REG("REG10", ACT8846, REG10, VSET),
-	ACT88xx_REG("REG11", ACT8846, REG11, VSET),
-	ACT88xx_REG("REG12", ACT8846, REG12, VSET),
+	ACT88xx_REG("REG1", ACT8846, REG1, VSET, "vp1"),
+	ACT88xx_REG("REG2", ACT8846, REG2, VSET0, "vp2"),
+	ACT88xx_REG("REG3", ACT8846, REG3, VSET0, "vp3"),
+	ACT88xx_REG("REG4", ACT8846, REG4, VSET0, "vp4"),
+	ACT88xx_REG("REG5", ACT8846, REG5, VSET, "inl1"),
+	ACT88xx_REG("REG6", ACT8846, REG6, VSET, "inl1"),
+	ACT88xx_REG("REG7", ACT8846, REG7, VSET, "inl1"),
+	ACT88xx_REG("REG8", ACT8846, REG8, VSET, "inl2"),
+	ACT88xx_REG("REG9", ACT8846, REG9, VSET, "inl2"),
+	ACT88xx_REG("REG10", ACT8846, REG10, VSET, "inl3"),
+	ACT88xx_REG("REG11", ACT8846, REG11, VSET, "inl3"),
+	ACT88xx_REG("REG12", ACT8846, REG12, VSET, "inl3"),
 };
 
 static const struct regulator_desc act8865_regulators[] = {
-	ACT88xx_REG("DCDC_REG1", ACT8865, DCDC1, VSET1),
-	ACT88xx_REG("DCDC_REG2", ACT8865, DCDC2, VSET1),
-	ACT88xx_REG("DCDC_REG3", ACT8865, DCDC3, VSET1),
-	ACT88xx_REG("LDO_REG1", ACT8865, LDO1, VSET),
-	ACT88xx_REG("LDO_REG2", ACT8865, LDO2, VSET),
-	ACT88xx_REG("LDO_REG3", ACT8865, LDO3, VSET),
-	ACT88xx_REG("LDO_REG4", ACT8865, LDO4, VSET),
+	ACT88xx_REG("DCDC_REG1", ACT8865, DCDC1, VSET1, "vp1"),
+	ACT88xx_REG("DCDC_REG2", ACT8865, DCDC2, VSET1, "vp2"),
+	ACT88xx_REG("DCDC_REG3", ACT8865, DCDC3, VSET1, "vp3"),
+	ACT88xx_REG("LDO_REG1", ACT8865, LDO1, VSET, "inl45"),
+	ACT88xx_REG("LDO_REG2", ACT8865, LDO2, VSET, "inl45"),
+	ACT88xx_REG("LDO_REG3", ACT8865, LDO3, VSET, "inl67"),
+	ACT88xx_REG("LDO_REG4", ACT8865, LDO4, VSET, "inl67"),
 };
 
 #ifdef CONFIG_OF
 static const struct of_device_id act8865_dt_ids[] = {
+	{ .compatible = "active-semi,act8600", .data = (void *)ACT8600 },
 	{ .compatible = "active-semi,act8846", .data = (void *)ACT8846 },
 	{ .compatible = "active-semi,act8865", .data = (void *)ACT8865 },
 	{ }
@@ -200,6 +295,19 @@ static struct of_regulator_match act8865_matches[] = {
 	[ACT8865_ID_LDO4]	= { .name = "LDO_REG4"},
 };
 
+static struct of_regulator_match act8600_matches[] = {
+	[ACT8600_ID_DCDC1]	= { .name = "DCDC_REG1"},
+	[ACT8600_ID_DCDC2]	= { .name = "DCDC_REG2"},
+	[ACT8600_ID_DCDC3]	= { .name = "DCDC_REG3"},
+	[ACT8600_ID_SUDCDC4]	= { .name = "SUDCDC_REG4"},
+	[ACT8600_ID_LDO5]	= { .name = "LDO_REG5"},
+	[ACT8600_ID_LDO6]	= { .name = "LDO_REG6"},
+	[ACT8600_ID_LDO7]	= { .name = "LDO_REG7"},
+	[ACT8600_ID_LDO8]	= { .name = "LDO_REG8"},
+	[ACT8600_ID_LDO9]	= { .name = "LDO_REG9"},
+	[ACT8600_ID_LDO10]	= { .name = "LDO_REG10"},
+};
+
 static int act8865_pdata_from_dt(struct device *dev,
 				 struct device_node **of_node,
 				 struct act8865_platform_data *pdata,
@@ -217,6 +325,10 @@ static int act8865_pdata_from_dt(struct device *dev,
 	}
 
 	switch (type) {
+	case ACT8600:
+		matches = act8600_matches;
+		num_matches = ARRAY_SIZE(act8600_matches);
+		break;
 	case ACT8846:
 		matches = act8846_matches;
 		num_matches = ARRAY_SIZE(act8846_matches);
@@ -317,6 +429,12 @@ static int act8865_pmic_probe(struct i2c_client *client,
 	}
 
 	switch (type) {
+	case ACT8600:
+		regulators = act8600_regulators;
+		num_regulators = ARRAY_SIZE(act8600_regulators);
+		off_reg = -1;
+		off_mask = -1;
+		break;
 	case ACT8846:
 		regulators = act8846_regulators;
 		num_regulators = ARRAY_SIZE(act8846_regulators);
@@ -366,7 +484,7 @@ static int act8865_pmic_probe(struct i2c_client *client,
 	}
 
 	if (of_device_is_system_power_controller(dev->of_node)) {
-		if (!pm_power_off) {
+		if (!pm_power_off && (off_reg > 0)) {
 			act8865_i2c_client = client;
 			act8865->off_reg = off_reg;
 			act8865->off_mask = off_mask;
@@ -402,6 +520,7 @@ static int act8865_pmic_probe(struct i2c_client *client,
 }
 
 static const struct i2c_device_id act8865_ids[] = {
+	{ .name = "act8600", .driver_data = ACT8600 },
 	{ .name = "act8846", .driver_data = ACT8846 },
 	{ .name = "act8865", .driver_data = ACT8865 },
 	{ },
diff --git a/drivers/regulator/arizona-ldo1.c b/drivers/regulator/arizona-ldo1.c
index 8169165..a1d07d3 100644
--- a/drivers/regulator/arizona-ldo1.c
+++ b/drivers/regulator/arizona-ldo1.c
@@ -282,6 +282,9 @@ static int arizona_ldo1_probe(struct platform_device *pdev)
 		arizona->external_dcvdd = true;
 
 	ldo1->regulator = devm_regulator_register(&pdev->dev, desc, &config);
+
+	of_node_put(config.of_node);
+
 	if (IS_ERR(ldo1->regulator)) {
 		ret = PTR_ERR(ldo1->regulator);
 		dev_err(arizona->dev, "Failed to register LDO1 supply: %d\n",
@@ -289,8 +292,6 @@ static int arizona_ldo1_probe(struct platform_device *pdev)
 		return ret;
 	}
 
-	of_node_put(config.of_node);
-
 	platform_set_drvdata(pdev, ldo1);
 
 	return 0;
diff --git a/drivers/regulator/arizona-micsupp.c b/drivers/regulator/arizona-micsupp.c
index 2007900..4116e74 100644
--- a/drivers/regulator/arizona-micsupp.c
+++ b/drivers/regulator/arizona-micsupp.c
@@ -284,6 +284,9 @@ static int arizona_micsupp_probe(struct platform_device *pdev)
 	micsupp->regulator = devm_regulator_register(&pdev->dev,
 						     desc,
 						     &config);
+
+	of_node_put(config.of_node);
+
 	if (IS_ERR(micsupp->regulator)) {
 		ret = PTR_ERR(micsupp->regulator);
 		dev_err(arizona->dev, "Failed to register mic supply: %d\n",
@@ -291,8 +294,6 @@ static int arizona_micsupp_probe(struct platform_device *pdev)
 		return ret;
 	}
 
-	of_node_put(config.of_node);
-
 	platform_set_drvdata(pdev, micsupp);
 
 	return 0;
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index b899947..443eaab 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -648,10 +648,12 @@ static int drms_uA_update(struct regulator_dev *rdev)
 	if (err < 0)
 		return 0;
 
-	if (!rdev->desc->ops->get_optimum_mode)
+	if (!rdev->desc->ops->get_optimum_mode &&
+	    !rdev->desc->ops->set_load)
 		return 0;
 
-	if (!rdev->desc->ops->set_mode)
+	if (!rdev->desc->ops->set_mode &&
+	    !rdev->desc->ops->set_load)
 		return -EINVAL;
 
 	/* get output voltage */
@@ -676,22 +678,29 @@ static int drms_uA_update(struct regulator_dev *rdev)
 	list_for_each_entry(sibling, &rdev->consumer_list, list)
 		current_uA += sibling->uA_load;
 
-	/* now get the optimum mode for our new total regulator load */
-	mode = rdev->desc->ops->get_optimum_mode(rdev, input_uV,
-						  output_uV, current_uA);
+	if (rdev->desc->ops->set_load) {
+		/* set the optimum mode for our new total regulator load */
+		err = rdev->desc->ops->set_load(rdev, current_uA);
+		if (err < 0)
+			rdev_err(rdev, "failed to set load %d\n", current_uA);
+	} else {
+		/* now get the optimum mode for our new total regulator load */
+		mode = rdev->desc->ops->get_optimum_mode(rdev, input_uV,
+							 output_uV, current_uA);
+
+		/* check the new mode is allowed */
+		err = regulator_mode_constrain(rdev, &mode);
+		if (err < 0) {
+			rdev_err(rdev, "failed to get optimum mode @ %d uA %d -> %d uV\n",
+				 current_uA, input_uV, output_uV);
+			return err;
+		}
 
-	/* check the new mode is allowed */
-	err = regulator_mode_constrain(rdev, &mode);
-	if (err < 0) {
-		rdev_err(rdev, "failed to get optimum mode @ %d uA %d -> %d uV\n",
-			 current_uA, input_uV, output_uV);
-		return err;
+		err = rdev->desc->ops->set_mode(rdev, mode);
+		if (err < 0)
+			rdev_err(rdev, "failed to set optimum mode %x\n", mode);
 	}
 
-	err = rdev->desc->ops->set_mode(rdev, mode);
-	if (err < 0)
-		rdev_err(rdev, "failed to set optimum mode %x\n", mode);
-
 	return err;
 }
 
@@ -1316,6 +1325,54 @@ static struct regulator_dev *regulator_dev_lookup(struct device *dev,
 	return NULL;
 }
 
+static int regulator_resolve_supply(struct regulator_dev *rdev)
+{
+	struct regulator_dev *r;
+	struct device *dev = rdev->dev.parent;
+	int ret;
+
+	/* No supply to resovle? */
+	if (!rdev->supply_name)
+		return 0;
+
+	/* Supply already resolved? */
+	if (rdev->supply)
+		return 0;
+
+	r = regulator_dev_lookup(dev, rdev->supply_name, &ret);
+	if (ret == -ENODEV) {
+		/*
+		 * No supply was specified for this regulator and
+		 * there will never be one.
+		 */
+		return 0;
+	}
+
+	if (!r) {
+		dev_err(dev, "Failed to resolve %s-supply for %s\n",
+			rdev->supply_name, rdev->desc->name);
+		return -EPROBE_DEFER;
+	}
+
+	/* Recursively resolve the supply of the supply */
+	ret = regulator_resolve_supply(r);
+	if (ret < 0)
+		return ret;
+
+	ret = set_supply(rdev, r);
+	if (ret < 0)
+		return ret;
+
+	/* Cascade always-on state to supply */
+	if (_regulator_is_enabled(rdev)) {
+		ret = regulator_enable(rdev->supply);
+		if (ret < 0)
+			return ret;
+	}
+
+	return 0;
+}
+
 /* Internal regulator request function */
 static struct regulator *_regulator_get(struct device *dev, const char *id,
 					bool exclusive, bool allow_dummy)
@@ -1385,6 +1442,12 @@ found:
 		goto out;
 	}
 
+	ret = regulator_resolve_supply(rdev);
+	if (ret < 0) {
+		regulator = ERR_PTR(ret);
+		goto out;
+	}
+
 	if (!try_module_get(rdev->owner))
 		goto out;
 
@@ -1839,10 +1902,12 @@ static int _regulator_do_enable(struct regulator_dev *rdev)
 	}
 
 	if (rdev->ena_pin) {
-		ret = regulator_ena_gpio_ctrl(rdev, true);
-		if (ret < 0)
-			return ret;
-		rdev->ena_gpio_state = 1;
+		if (!rdev->ena_gpio_state) {
+			ret = regulator_ena_gpio_ctrl(rdev, true);
+			if (ret < 0)
+				return ret;
+			rdev->ena_gpio_state = 1;
+		}
 	} else if (rdev->desc->ops->enable) {
 		ret = rdev->desc->ops->enable(rdev);
 		if (ret < 0)
@@ -1939,10 +2004,12 @@ static int _regulator_do_disable(struct regulator_dev *rdev)
 	trace_regulator_disable(rdev_get_name(rdev));
 
 	if (rdev->ena_pin) {
-		ret = regulator_ena_gpio_ctrl(rdev, false);
-		if (ret < 0)
-			return ret;
-		rdev->ena_gpio_state = 0;
+		if (rdev->ena_gpio_state) {
+			ret = regulator_ena_gpio_ctrl(rdev, false);
+			if (ret < 0)
+				return ret;
+			rdev->ena_gpio_state = 0;
+		}
 
 	} else if (rdev->desc->ops->disable) {
 		ret = rdev->desc->ops->disable(rdev);
@@ -2994,7 +3061,7 @@ unsigned int regulator_get_mode(struct regulator *regulator)
 EXPORT_SYMBOL_GPL(regulator_get_mode);
 
 /**
- * regulator_set_optimum_mode - set regulator optimum operating mode
+ * regulator_set_load - set regulator load
  * @regulator: regulator source
  * @uA_load: load current
  *
@@ -3017,9 +3084,9 @@ EXPORT_SYMBOL_GPL(regulator_get_mode);
  * DRMS will sum the total requested load on the regulator and change
  * to the most efficient operating mode if platform constraints allow.
  *
- * Returns the new regulator mode or error.
+ * On error a negative errno is returned.
  */
-int regulator_set_optimum_mode(struct regulator *regulator, int uA_load)
+int regulator_set_load(struct regulator *regulator, int uA_load)
 {
 	struct regulator_dev *rdev = regulator->rdev;
 	int ret;
@@ -3031,7 +3098,7 @@ int regulator_set_optimum_mode(struct regulator *regulator, int uA_load)
 
 	return ret;
 }
-EXPORT_SYMBOL_GPL(regulator_set_optimum_mode);
+EXPORT_SYMBOL_GPL(regulator_set_load);
 
 /**
  * regulator_allow_bypass - allow the regulator to go into bypass mode
@@ -3444,13 +3511,6 @@ static umode_t regulator_attr_is_visible(struct kobject *kobj,
 	if (attr == &dev_attr_requested_microamps.attr)
 		return rdev->desc->type == REGULATOR_CURRENT ? mode : 0;
 
-	/* all the other attributes exist to support constraints;
-	 * don't show them if there are no constraints, or if the
-	 * relevant supporting methods are missing.
-	 */
-	if (!rdev->constraints)
-		return 0;
-
 	/* constraints need specific supporting methods */
 	if (attr == &dev_attr_min_microvolts.attr ||
 	    attr == &dev_attr_max_microvolts.attr)
@@ -3502,7 +3562,18 @@ static struct class regulator_class = {
 
 static void rdev_init_debugfs(struct regulator_dev *rdev)
 {
-	rdev->debugfs = debugfs_create_dir(rdev_get_name(rdev), debugfs_root);
+	struct device *parent = rdev->dev.parent;
+	const char *rname = rdev_get_name(rdev);
+	char name[NAME_MAX];
+
+	/* Avoid duplicate debugfs directory names */
+	if (parent && rname == rdev->desc->name) {
+		snprintf(name, sizeof(name), "%s-%s", dev_name(parent),
+			 rname);
+		rname = name;
+	}
+
+	rdev->debugfs = debugfs_create_dir(rname, debugfs_root);
 	if (!rdev->debugfs) {
 		rdev_warn(rdev, "Failed to create debugfs directory\n");
 		return;
@@ -3536,7 +3607,6 @@ regulator_register(const struct regulator_desc *regulator_desc,
 	struct regulator_dev *rdev;
 	struct device *dev;
 	int ret, i;
-	const char *supply = NULL;
 
 	if (regulator_desc == NULL || cfg == NULL)
 		return ERR_PTR(-EINVAL);
@@ -3633,12 +3703,6 @@ regulator_register(const struct regulator_desc *regulator_desc,
 				 config->ena_gpio, ret);
 			goto wash;
 		}
-
-		if (config->ena_gpio_flags & GPIOF_OUT_INIT_HIGH)
-			rdev->ena_gpio_state = 1;
-
-		if (config->ena_gpio_invert)
-			rdev->ena_gpio_state = !rdev->ena_gpio_state;
 	}
 
 	/* set regulator constraints */
@@ -3650,41 +3714,10 @@ regulator_register(const struct regulator_desc *regulator_desc,
 		goto scrub;
 
 	if (init_data && init_data->supply_regulator)
-		supply = init_data->supply_regulator;
+		rdev->supply_name = init_data->supply_regulator;
 	else if (regulator_desc->supply_name)
-		supply = regulator_desc->supply_name;
-
-	if (supply) {
-		struct regulator_dev *r;
-
-		r = regulator_dev_lookup(dev, supply, &ret);
-
-		if (ret == -ENODEV) {
-			/*
-			 * No supply was specified for this regulator and
-			 * there will never be one.
-			 */
-			ret = 0;
-			goto add_dev;
-		} else if (!r) {
-			dev_err(dev, "Failed to find supply %s\n", supply);
-			ret = -EPROBE_DEFER;
-			goto scrub;
-		}
-
-		ret = set_supply(rdev, r);
-		if (ret < 0)
-			goto scrub;
-
-		/* Enable supply if rail is enabled */
-		if (_regulator_is_enabled(rdev)) {
-			ret = regulator_enable(rdev->supply);
-			if (ret < 0)
-				goto scrub;
-		}
-	}
+		rdev->supply_name = regulator_desc->supply_name;
 
-add_dev:
 	/* add consumers devices */
 	if (init_data) {
 		for (i = 0; i < init_data->num_consumer_supplies; i++) {
@@ -3711,8 +3744,6 @@ unset_supplies:
 	unset_regulator_supplies(rdev);
 
 scrub:
-	if (rdev->supply)
-		_regulator_put(rdev->supply);
 	regulator_ena_gpio_free(rdev);
 	kfree(rdev->constraints);
 wash:
@@ -3807,9 +3838,11 @@ int regulator_suspend_finish(void)
 	list_for_each_entry(rdev, &regulator_list, list) {
 		mutex_lock(&rdev->mutex);
 		if (rdev->use_count > 0  || rdev->constraints->always_on) {
-			error = _regulator_do_enable(rdev);
-			if (error)
-				ret = error;
+			if (!_regulator_is_enabled(rdev)) {
+				error = _regulator_do_enable(rdev);
+				if (error)
+					ret = error;
+			}
 		} else {
 			if (!have_full_constraints())
 				goto unlock;
@@ -3943,6 +3976,110 @@ static const struct file_operations supply_map_fops = {
 #endif
 };
 
+#ifdef CONFIG_DEBUG_FS
+static void regulator_summary_show_subtree(struct seq_file *s,
+					   struct regulator_dev *rdev,
+					   int level)
+{
+	struct list_head *list = s->private;
+	struct regulator_dev *child;
+	struct regulation_constraints *c;
+	struct regulator *consumer;
+
+	if (!rdev)
+		return;
+
+	seq_printf(s, "%*s%-*s %3d %4d %6d ",
+		   level * 3 + 1, "",
+		   30 - level * 3, rdev_get_name(rdev),
+		   rdev->use_count, rdev->open_count, rdev->bypass_count);
+
+	seq_printf(s, "%5dmV ", _regulator_get_voltage(rdev) / 1000);
+	seq_printf(s, "%5dmA ", _regulator_get_current_limit(rdev) / 1000);
+
+	c = rdev->constraints;
+	if (c) {
+		switch (rdev->desc->type) {
+		case REGULATOR_VOLTAGE:
+			seq_printf(s, "%5dmV %5dmV ",
+				   c->min_uV / 1000, c->max_uV / 1000);
+			break;
+		case REGULATOR_CURRENT:
+			seq_printf(s, "%5dmA %5dmA ",
+				   c->min_uA / 1000, c->max_uA / 1000);
+			break;
+		}
+	}
+
+	seq_puts(s, "\n");
+
+	list_for_each_entry(consumer, &rdev->consumer_list, list) {
+		if (consumer->dev->class == &regulator_class)
+			continue;
+
+		seq_printf(s, "%*s%-*s ",
+			   (level + 1) * 3 + 1, "",
+			   30 - (level + 1) * 3, dev_name(consumer->dev));
+
+		switch (rdev->desc->type) {
+		case REGULATOR_VOLTAGE:
+			seq_printf(s, "%37dmV %5dmV",
+				   consumer->min_uV / 1000,
+				   consumer->max_uV / 1000);
+			break;
+		case REGULATOR_CURRENT:
+			break;
+		}
+
+		seq_puts(s, "\n");
+	}
+
+	list_for_each_entry(child, list, list) {
+		/* handle only non-root regulators supplied by current rdev */
+		if (!child->supply || child->supply->rdev != rdev)
+			continue;
+
+		regulator_summary_show_subtree(s, child, level + 1);
+	}
+}
+
+static int regulator_summary_show(struct seq_file *s, void *data)
+{
+	struct list_head *list = s->private;
+	struct regulator_dev *rdev;
+
+	seq_puts(s, " regulator                      use open bypass voltage current     min     max\n");
+	seq_puts(s, "-------------------------------------------------------------------------------\n");
+
+	mutex_lock(&regulator_list_mutex);
+
+	list_for_each_entry(rdev, list, list) {
+		if (rdev->supply)
+			continue;
+
+		regulator_summary_show_subtree(s, rdev, 0);
+	}
+
+	mutex_unlock(&regulator_list_mutex);
+
+	return 0;
+}
+
+static int regulator_summary_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, regulator_summary_show, inode->i_private);
+}
+#endif
+
+static const struct file_operations regulator_summary_fops = {
+#ifdef CONFIG_DEBUG_FS
+	.open		= regulator_summary_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+#endif
+};
+
 static int __init regulator_init(void)
 {
 	int ret;
@@ -3956,6 +4093,9 @@ static int __init regulator_init(void)
 	debugfs_create_file("supply_map", 0444, debugfs_root, NULL,
 			    &supply_map_fops);
 
+	debugfs_create_file("regulator_summary", 0444, debugfs_root,
+			    &regulator_list, &regulator_summary_fops);
+
 	regulator_dummy_init();
 
 	return ret;
diff --git a/drivers/regulator/da9210-regulator.c b/drivers/regulator/da9210-regulator.c
index bc61001..f0489cb 100644
--- a/drivers/regulator/da9210-regulator.c
+++ b/drivers/regulator/da9210-regulator.c
@@ -152,6 +152,15 @@ static int da9210_i2c_probe(struct i2c_client *i2c,
 	config.regmap = chip->regmap;
 	config.of_node = dev->of_node;
 
+	/* Mask all interrupt sources to deassert interrupt line */
+	error = regmap_write(chip->regmap, DA9210_REG_MASK_A, ~0);
+	if (!error)
+		error = regmap_write(chip->regmap, DA9210_REG_MASK_B, ~0);
+	if (error) {
+		dev_err(&i2c->dev, "Failed to write to mask reg: %d\n", error);
+		return error;
+	}
+
 	rdev = devm_regulator_register(&i2c->dev, &da9210_reg, &config);
 	if (IS_ERR(rdev)) {
 		dev_err(&i2c->dev, "Failed to register DA9210 regulator\n");
diff --git a/drivers/regulator/da9211-regulator.c b/drivers/regulator/da9211-regulator.c
index 0134341..df79e4b 100644
--- a/drivers/regulator/da9211-regulator.c
+++ b/drivers/regulator/da9211-regulator.c
@@ -305,8 +305,7 @@ static irqreturn_t da9211_irq_handler(int irq, void *data)
 
 	if (reg_val & DA9211_E_OV_CURR_A) {
 		regulator_notifier_call_chain(chip->rdev[0],
-			REGULATOR_EVENT_OVER_CURRENT,
-			rdev_get_drvdata(chip->rdev[0]));
+			REGULATOR_EVENT_OVER_CURRENT, NULL);
 
 		err = regmap_write(chip->regmap, DA9211_REG_EVENT_B,
 			DA9211_E_OV_CURR_A);
@@ -318,8 +317,7 @@ static irqreturn_t da9211_irq_handler(int irq, void *data)
 
 	if (reg_val & DA9211_E_OV_CURR_B) {
 		regulator_notifier_call_chain(chip->rdev[1],
-			REGULATOR_EVENT_OVER_CURRENT,
-			rdev_get_drvdata(chip->rdev[1]));
+			REGULATOR_EVENT_OVER_CURRENT, NULL);
 
 		err = regmap_write(chip->regmap, DA9211_REG_EVENT_B,
 			DA9211_E_OV_CURR_B);
@@ -344,7 +342,7 @@ static int da9211_regulator_init(struct da9211 *chip)
 
 	ret = regmap_read(chip->regmap, DA9211_REG_CONFIG_E, &data);
 	if (ret < 0) {
-		dev_err(chip->dev, "Failed to read CONTROL_E reg: %d\n", ret);
+		dev_err(chip->dev, "Failed to read CONFIG_E reg: %d\n", ret);
 		return ret;
 	}
 
diff --git a/drivers/regulator/dbx500-prcmu.c b/drivers/regulator/dbx500-prcmu.c
index 2d16b9f..3963dfa 100644
--- a/drivers/regulator/dbx500-prcmu.c
+++ b/drivers/regulator/dbx500-prcmu.c
@@ -95,14 +95,9 @@ void ux500_regulator_resume_debug(void)
 
 static int ux500_regulator_power_state_cnt_print(struct seq_file *s, void *p)
 {
-	struct device *dev = s->private;
-	int err;
-
 	/* print power state count */
-	err = seq_printf(s, "ux500-regulator power state count: %i\n",
-		power_state_active_get());
-	if (err < 0)
-		dev_err(dev, "seq_printf overflow\n");
+	seq_printf(s, "ux500-regulator power state count: %i\n",
+		   power_state_active_get());
 
 	return 0;
 }
@@ -124,19 +119,11 @@ static const struct file_operations ux500_regulator_power_state_cnt_fops = {
 
 static int ux500_regulator_status_print(struct seq_file *s, void *p)
 {
-	struct device *dev = s->private;
-	int err;
 	int i;
 
 	/* print dump header */
-	err = seq_puts(s, "ux500-regulator status:\n");
-	if (err < 0)
-		dev_err(dev, "seq_puts overflow\n");
-
-	err = seq_printf(s, "%31s : %8s : %8s\n", "current",
-		"before", "after");
-	if (err < 0)
-		dev_err(dev, "seq_printf overflow\n");
+	seq_puts(s, "ux500-regulator status:\n");
+	seq_printf(s, "%31s : %8s : %8s\n", "current", "before", "after");
 
 	for (i = 0; i < rdebug.num_regulators; i++) {
 		struct dbx500_regulator_info *info;
@@ -144,12 +131,11 @@ static int ux500_regulator_status_print(struct seq_file *s, void *p)
 		info = &rdebug.regulator_array[i];
 
 		/* print status */
-		err = seq_printf(s, "%20s : %8s : %8s : %8s\n", info->desc.name,
-			info->is_enabled ? "enabled" : "disabled",
-			rdebug.state_before_suspend[i] ? "enabled" : "disabled",
-			rdebug.state_after_suspend[i] ? "enabled" : "disabled");
-		if (err < 0)
-			dev_err(dev, "seq_printf overflow\n");
+		seq_printf(s, "%20s : %8s : %8s : %8s\n",
+			   info->desc.name,
+			   info->is_enabled ? "enabled" : "disabled",
+			   rdebug.state_before_suspend[i] ? "enabled" : "disabled",
+			   rdebug.state_after_suspend[i] ? "enabled" : "disabled");
 	}
 
 	return 0;
diff --git a/drivers/regulator/devres.c b/drivers/regulator/devres.c
index 8f785bc..6ec1d40 100644
--- a/drivers/regulator/devres.c
+++ b/drivers/regulator/devres.c
@@ -413,3 +413,88 @@ void devm_regulator_bulk_unregister_supply_alias(struct device *dev,
 		devm_regulator_unregister_supply_alias(dev, id[i]);
 }
 EXPORT_SYMBOL_GPL(devm_regulator_bulk_unregister_supply_alias);
+
+struct regulator_notifier_match {
+	struct regulator *regulator;
+	struct notifier_block *nb;
+};
+
+static int devm_regulator_match_notifier(struct device *dev, void *res,
+					 void *data)
+{
+	struct regulator_notifier_match *match = res;
+	struct regulator_notifier_match *target = data;
+
+	return match->regulator == target->regulator && match->nb == target->nb;
+}
+
+static void devm_regulator_destroy_notifier(struct device *dev, void *res)
+{
+	struct regulator_notifier_match *match = res;
+
+	regulator_unregister_notifier(match->regulator, match->nb);
+}
+
+/**
+ * devm_regulator_register_notifier - Resource managed
+ * regulator_register_notifier
+ *
+ * @regulator: regulator source
+ * @nb: notifier block
+ *
+ * The notifier will be registers under the consumer device and be
+ * automatically be unregistered when the source device is unbound.
+ */
+int devm_regulator_register_notifier(struct regulator *regulator,
+				     struct notifier_block *nb)
+{
+	struct regulator_notifier_match *match;
+	int ret;
+
+	match = devres_alloc(devm_regulator_destroy_notifier,
+			     sizeof(struct regulator_notifier_match),
+			     GFP_KERNEL);
+	if (!match)
+		return -ENOMEM;
+
+	match->regulator = regulator;
+	match->nb = nb;
+
+	ret = regulator_register_notifier(regulator, nb);
+	if (ret < 0) {
+		devres_free(match);
+		return ret;
+	}
+
+	devres_add(regulator->dev, match);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(devm_regulator_register_notifier);
+
+/**
+ * devm_regulator_unregister_notifier - Resource managed
+ * regulator_unregister_notifier()
+ *
+ * @regulator: regulator source
+ * @nb: notifier block
+ *
+ * Unregister a notifier registered with devm_regulator_register_notifier().
+ * Normally this function will not need to be called and the resource
+ * management code will ensure that the resource is freed.
+ */
+void devm_regulator_unregister_notifier(struct regulator *regulator,
+					struct notifier_block *nb)
+{
+	struct regulator_notifier_match match;
+	int rc;
+
+	match.regulator = regulator;
+	match.nb = nb;
+
+	rc = devres_release(regulator->dev, devm_regulator_destroy_notifier,
+			    devm_regulator_match_notifier, &match);
+	if (rc != 0)
+		WARN_ON(rc);
+}
+EXPORT_SYMBOL_GPL(devm_regulator_unregister_notifier);
diff --git a/drivers/regulator/max77693.c b/drivers/regulator/max77693.c
index 07b313e..9665a48 100644
--- a/drivers/regulator/max77693.c
+++ b/drivers/regulator/max77693.c
@@ -128,6 +128,8 @@ static struct regulator_ops max77693_charger_ops = {
 #define regulator_desc_esafeout(_num)	{			\
 	.name		= "ESAFEOUT"#_num,			\
 	.id		= MAX77693_ESAFEOUT##_num,		\
+	.of_match	= of_match_ptr("ESAFEOUT"#_num),	\
+	.regulators_node	= of_match_ptr("regulators"),	\
 	.n_voltages	= 4,					\
 	.ops		= &max77693_safeout_ops,		\
 	.type		= REGULATOR_VOLTAGE,			\
@@ -145,6 +147,8 @@ static const struct regulator_desc regulators[] = {
 	{
 		.name = "CHARGER",
 		.id = MAX77693_CHARGER,
+		.of_match = of_match_ptr("CHARGER"),
+		.regulators_node = of_match_ptr("regulators"),
 		.ops = &max77693_charger_ops,
 		.type = REGULATOR_CURRENT,
 		.owner = THIS_MODULE,
@@ -154,102 +158,23 @@ static const struct regulator_desc regulators[] = {
 	},
 };
 
-#ifdef CONFIG_OF
-static int max77693_pmic_dt_parse_rdata(struct device *dev,
-					struct max77693_regulator_data **rdata)
-{
-	struct device_node *np;
-	struct of_regulator_match *rmatch;
-	struct max77693_regulator_data *tmp;
-	int i, matched = 0;
-
-	np = of_get_child_by_name(dev->parent->of_node, "regulators");
-	if (!np)
-		return -EINVAL;
-
-	rmatch = devm_kzalloc(dev,
-		 sizeof(*rmatch) * ARRAY_SIZE(regulators), GFP_KERNEL);
-	if (!rmatch) {
-		of_node_put(np);
-		return -ENOMEM;
-	}
-
-	for (i = 0; i < ARRAY_SIZE(regulators); i++)
-		rmatch[i].name = regulators[i].name;
-
-	matched = of_regulator_match(dev, np, rmatch, ARRAY_SIZE(regulators));
-	of_node_put(np);
-	if (matched <= 0)
-		return matched;
-	*rdata = devm_kzalloc(dev, sizeof(**rdata) * matched, GFP_KERNEL);
-	if (!(*rdata))
-		return -ENOMEM;
-
-	tmp = *rdata;
-
-	for (i = 0; i < matched; i++) {
-		tmp->initdata = rmatch[i].init_data;
-		tmp->of_node = rmatch[i].of_node;
-		tmp->id = regulators[i].id;
-		tmp++;
-	}
-
-	return matched;
-}
-#else
-static int max77693_pmic_dt_parse_rdata(struct device *dev,
-					struct max77693_regulator_data **rdata)
-{
-	return 0;
-}
-#endif /* CONFIG_OF */
-
-static int max77693_pmic_init_rdata(struct device *dev,
-				    struct max77693_regulator_data **rdata)
-{
-	struct max77693_platform_data *pdata;
-	int num_regulators = 0;
-
-	pdata = dev_get_platdata(dev->parent);
-	if (pdata) {
-		*rdata = pdata->regulators;
-		num_regulators = pdata->num_regulators;
-	}
-
-	if (!(*rdata) && dev->parent->of_node)
-		num_regulators = max77693_pmic_dt_parse_rdata(dev, rdata);
-
-	return num_regulators;
-}
-
 static int max77693_pmic_probe(struct platform_device *pdev)
 {
 	struct max77693_dev *iodev = dev_get_drvdata(pdev->dev.parent);
-	struct max77693_regulator_data *rdata = NULL;
-	int num_rdata, i;
+	int i;
 	struct regulator_config config = { };
 
-	num_rdata = max77693_pmic_init_rdata(&pdev->dev, &rdata);
-	if (!rdata || num_rdata <= 0) {
-		dev_err(&pdev->dev, "No init data supplied.\n");
-		return -ENODEV;
-	}
-
-	config.dev = &pdev->dev;
+	config.dev = iodev->dev;
 	config.regmap = iodev->regmap;
 
-	for (i = 0; i < num_rdata; i++) {
-		int id = rdata[i].id;
+	for (i = 0; i < ARRAY_SIZE(regulators); i++) {
 		struct regulator_dev *rdev;
 
-		config.init_data = rdata[i].initdata;
-		config.of_node = rdata[i].of_node;
-
 		rdev = devm_regulator_register(&pdev->dev,
-						&regulators[id], &config);
+						&regulators[i], &config);
 		if (IS_ERR(rdev)) {
 			dev_err(&pdev->dev,
-				"Failed to initialize regulator-%d\n", id);
+				"Failed to initialize regulator-%d\n", i);
 			return PTR_ERR(rdev);
 		}
 	}
diff --git a/drivers/regulator/max8660.c b/drivers/regulator/max8660.c
index 7eee2ca..4071d74 100644
--- a/drivers/regulator/max8660.c
+++ b/drivers/regulator/max8660.c
@@ -382,7 +382,7 @@ static int max8660_probe(struct i2c_client *client,
 				   const struct i2c_device_id *i2c_id)
 {
 	struct device *dev = &client->dev;
-	struct max8660_platform_data *pdata = dev_get_platdata(dev);
+	struct max8660_platform_data pdata_of, *pdata = dev_get_platdata(dev);
 	struct regulator_config config = { };
 	struct max8660 *max8660;
 	int boot_on, i, id, ret = -EINVAL;
@@ -391,7 +391,6 @@ static int max8660_probe(struct i2c_client *client,
 
 	if (dev->of_node && !pdata) {
 		const struct of_device_id *id;
-		struct max8660_platform_data pdata_of;
 
 		id = of_match_device(of_match_ptr(max8660_dt_ids), dev);
 		if (!id)
@@ -443,9 +442,9 @@ static int max8660_probe(struct i2c_client *client,
 	for (i = 0; i < pdata->num_subdevs; i++) {
 
 		if (!pdata->subdevs[i].platform_data)
-			return ret;
-
-		boot_on = pdata->subdevs[i].platform_data->constraints.boot_on;
+			boot_on = false;
+		else
+			boot_on = pdata->subdevs[i].platform_data->constraints.boot_on;
 
 		switch (pdata->subdevs[i].id) {
 		case MAX8660_V3:
diff --git a/drivers/regulator/palmas-regulator.c b/drivers/regulator/palmas-regulator.c
index 9205f43..8217613 100644
--- a/drivers/regulator/palmas-regulator.c
+++ b/drivers/regulator/palmas-regulator.c
@@ -916,6 +916,9 @@ static int palmas_ldo_registration(struct palmas_pmic *pmic,
 			    (id == PALMAS_REG_LDO6))
 				desc->enable_time = 2000;
 		} else {
+			if (!ddata->has_regen3 && id == PALMAS_REG_REGEN3)
+				continue;
+
 			desc->n_voltages = 1;
 			if (reg_init && reg_init->roof_floor)
 				desc->ops = &palmas_ops_ext_control_extreg;
@@ -1398,6 +1401,7 @@ static struct palmas_pmic_driver_data palmas_ddata = {
 	.ldo_begin = PALMAS_REG_LDO1,
 	.ldo_end = PALMAS_REG_LDOUSB,
 	.max_reg = PALMAS_NUM_REGS,
+	.has_regen3 = true,
 	.palmas_regs_info = palmas_generic_regs_info,
 	.palmas_matches = palmas_matches,
 	.sleep_req_info = palma_sleep_req_info,
@@ -1411,6 +1415,7 @@ static struct palmas_pmic_driver_data tps65917_ddata = {
 	.ldo_begin = TPS65917_REG_LDO1,
 	.ldo_end = TPS65917_REG_LDO5,
 	.max_reg = TPS65917_NUM_REGS,
+	.has_regen3 = true,
 	.palmas_regs_info = tps65917_regs_info,
 	.palmas_matches = tps65917_matches,
 	.sleep_req_info = tps65917_sleep_req_info,
@@ -1505,7 +1510,7 @@ static void palmas_dt_to_pdata(struct device *dev,
 	pdata->ldo6_vibrator = of_property_read_bool(node, "ti,ldo6-vibrator");
 }
 
-static struct of_device_id of_palmas_match_tbl[] = {
+static const struct of_device_id of_palmas_match_tbl[] = {
 	{
 		.compatible = "ti,palmas-pmic",
 		.data = &palmas_ddata,
@@ -1572,6 +1577,12 @@ static int palmas_regulators_probe(struct platform_device *pdev)
 	if (!pmic)
 		return -ENOMEM;
 
+	if (of_device_is_compatible(node, "ti,tps659038-pmic")) {
+		palmas_generic_regs_info[PALMAS_REG_REGEN2].ctrl_addr =
+							TPS659038_REGEN2_CTRL;
+		palmas_ddata.has_regen3 = false;
+	}
+
 	pmic->dev = &pdev->dev;
 	pmic->palmas = palmas;
 	palmas->pmic = pmic;
diff --git a/drivers/regulator/qcom_rpm-regulator.c b/drivers/regulator/qcom_rpm-regulator.c
index 00c5cc3..e254272 100644
--- a/drivers/regulator/qcom_rpm-regulator.c
+++ b/drivers/regulator/qcom_rpm-regulator.c
@@ -393,6 +393,28 @@ static int rpm_reg_is_enabled(struct regulator_dev *rdev)
 	return vreg->is_enabled;
 }
 
+static int rpm_reg_set_load(struct regulator_dev *rdev, int load_uA)
+{
+	struct qcom_rpm_reg *vreg = rdev_get_drvdata(rdev);
+	const struct rpm_reg_parts *parts = vreg->parts;
+	const struct request_member *req = &parts->ia;
+	int load_mA = load_uA / 1000;
+	int max_mA = req->mask >> req->shift;
+	int ret;
+
+	if (req->mask == 0)
+		return -EINVAL;
+
+	if (load_mA > max_mA)
+		load_mA = max_mA;
+
+	mutex_lock(&vreg->lock);
+	ret = rpm_reg_write(vreg, req, load_mA);
+	mutex_unlock(&vreg->lock);
+
+	return ret;
+}
+
 static struct regulator_ops uV_ops = {
 	.list_voltage = regulator_list_voltage_linear_range,
 
@@ -402,6 +424,8 @@ static struct regulator_ops uV_ops = {
 	.enable = rpm_reg_uV_enable,
 	.disable = rpm_reg_uV_disable,
 	.is_enabled = rpm_reg_is_enabled,
+
+	.set_load = rpm_reg_set_load,
 };
 
 static struct regulator_ops mV_ops = {
@@ -413,6 +437,8 @@ static struct regulator_ops mV_ops = {
 	.enable = rpm_reg_mV_enable,
 	.disable = rpm_reg_mV_disable,
 	.is_enabled = rpm_reg_is_enabled,
+
+	.set_load = rpm_reg_set_load,
 };
 
 static struct regulator_ops switch_ops = {
@@ -581,31 +607,6 @@ static const struct qcom_rpm_reg smb208_smps = {
 	.supports_force_mode_bypass = false,
 };
 
-static const struct of_device_id rpm_of_match[] = {
-	{ .compatible = "qcom,rpm-pm8058-pldo",     .data = &pm8058_pldo },
-	{ .compatible = "qcom,rpm-pm8058-nldo",     .data = &pm8058_nldo },
-	{ .compatible = "qcom,rpm-pm8058-smps",     .data = &pm8058_smps },
-	{ .compatible = "qcom,rpm-pm8058-ncp",      .data = &pm8058_ncp },
-	{ .compatible = "qcom,rpm-pm8058-switch",   .data = &pm8058_switch },
-
-	{ .compatible = "qcom,rpm-pm8901-pldo",     .data = &pm8901_pldo },
-	{ .compatible = "qcom,rpm-pm8901-nldo",     .data = &pm8901_nldo },
-	{ .compatible = "qcom,rpm-pm8901-ftsmps",   .data = &pm8901_ftsmps },
-	{ .compatible = "qcom,rpm-pm8901-switch",   .data = &pm8901_switch },
-
-	{ .compatible = "qcom,rpm-pm8921-pldo",     .data = &pm8921_pldo },
-	{ .compatible = "qcom,rpm-pm8921-nldo",     .data = &pm8921_nldo },
-	{ .compatible = "qcom,rpm-pm8921-nldo1200", .data = &pm8921_nldo1200 },
-	{ .compatible = "qcom,rpm-pm8921-smps",     .data = &pm8921_smps },
-	{ .compatible = "qcom,rpm-pm8921-ftsmps",   .data = &pm8921_ftsmps },
-	{ .compatible = "qcom,rpm-pm8921-ncp",      .data = &pm8921_ncp },
-	{ .compatible = "qcom,rpm-pm8921-switch",   .data = &pm8921_switch },
-
-	{ .compatible = "qcom,rpm-smb208", .data = &smb208_smps },
-	{ }
-};
-MODULE_DEVICE_TABLE(of, rpm_of_match);
-
 static int rpm_reg_set(struct qcom_rpm_reg *vreg,
 		       const struct request_member *req,
 		       const int value)
@@ -619,7 +620,9 @@ static int rpm_reg_set(struct qcom_rpm_reg *vreg,
 	return 0;
 }
 
-static int rpm_reg_of_parse_freq(struct device *dev, struct qcom_rpm_reg *vreg)
+static int rpm_reg_of_parse_freq(struct device *dev,
+				 struct device_node *node,
+				 struct qcom_rpm_reg *vreg)
 {
 	static const int freq_table[] = {
 		19200000, 9600000, 6400000, 4800000, 3840000, 3200000, 2740000,
@@ -633,7 +636,7 @@ static int rpm_reg_of_parse_freq(struct device *dev, struct qcom_rpm_reg *vreg)
 	int i;
 
 	key = "qcom,switch-mode-frequency";
-	ret = of_property_read_u32(dev->of_node, key, &freq);
+	ret = of_property_read_u32(node, key, &freq);
 	if (ret) {
 		dev_err(dev, "regulator requires %s property\n", key);
 		return -EINVAL;
@@ -650,84 +653,40 @@ static int rpm_reg_of_parse_freq(struct device *dev, struct qcom_rpm_reg *vreg)
 	return -EINVAL;
 }
 
-static int rpm_reg_probe(struct platform_device *pdev)
+static int rpm_reg_of_parse(struct device_node *node,
+			    const struct regulator_desc *desc,
+			    struct regulator_config *config)
 {
-	struct regulator_init_data *initdata;
-	const struct qcom_rpm_reg *template;
-	const struct of_device_id *match;
-	struct regulator_config config = { };
-	struct regulator_dev *rdev;
-	struct qcom_rpm_reg *vreg;
+	struct qcom_rpm_reg *vreg = config->driver_data;
+	struct device *dev = config->dev;
 	const char *key;
 	u32 force_mode;
 	bool pwm;
 	u32 val;
 	int ret;
 
-	match = of_match_device(rpm_of_match, &pdev->dev);
-	template = match->data;
-
-	vreg = devm_kmalloc(&pdev->dev, sizeof(*vreg), GFP_KERNEL);
-	if (!vreg) {
-		dev_err(&pdev->dev, "failed to allocate vreg\n");
-		return -ENOMEM;
-	}
-	memcpy(vreg, template, sizeof(*vreg));
-	mutex_init(&vreg->lock);
-	vreg->dev = &pdev->dev;
-	vreg->desc.id = -1;
-	vreg->desc.owner = THIS_MODULE;
-	vreg->desc.type = REGULATOR_VOLTAGE;
-	vreg->desc.name = pdev->dev.of_node->name;
-	vreg->desc.supply_name = "vin";
-
-	vreg->rpm = dev_get_drvdata(pdev->dev.parent);
-	if (!vreg->rpm) {
-		dev_err(&pdev->dev, "unable to retrieve handle to rpm\n");
-		return -ENODEV;
-	}
-
-	initdata = of_get_regulator_init_data(&pdev->dev, pdev->dev.of_node,
-					      &vreg->desc);
-	if (!initdata)
-		return -EINVAL;
-
-	key = "reg";
-	ret = of_property_read_u32(pdev->dev.of_node, key, &val);
-	if (ret) {
-		dev_err(&pdev->dev, "failed to read %s\n", key);
-		return ret;
-	}
-	vreg->resource = val;
-
-	if ((vreg->parts->uV.mask || vreg->parts->mV.mask) &&
-	    (!initdata->constraints.min_uV || !initdata->constraints.max_uV)) {
-		dev_err(&pdev->dev, "no voltage specified for regulator\n");
-		return -EINVAL;
-	}
-
 	key = "bias-pull-down";
-	if (of_property_read_bool(pdev->dev.of_node, key)) {
+	if (of_property_read_bool(node, key)) {
 		ret = rpm_reg_set(vreg, &vreg->parts->pd, 1);
 		if (ret) {
-			dev_err(&pdev->dev, "%s is invalid", key);
+			dev_err(dev, "%s is invalid", key);
 			return ret;
 		}
 	}
 
 	if (vreg->parts->freq.mask) {
-		ret = rpm_reg_of_parse_freq(&pdev->dev, vreg);
+		ret = rpm_reg_of_parse_freq(dev, node, vreg);
 		if (ret < 0)
 			return ret;
 	}
 
 	if (vreg->parts->pm.mask) {
 		key = "qcom,power-mode-hysteretic";
-		pwm = !of_property_read_bool(pdev->dev.of_node, key);
+		pwm = !of_property_read_bool(node, key);
 
 		ret = rpm_reg_set(vreg, &vreg->parts->pm, pwm);
 		if (ret) {
-			dev_err(&pdev->dev, "failed to set power mode\n");
+			dev_err(dev, "failed to set power mode\n");
 			return ret;
 		}
 	}
@@ -736,11 +695,11 @@ static int rpm_reg_probe(struct platform_device *pdev)
 		force_mode = -1;
 
 		key = "qcom,force-mode";
-		ret = of_property_read_u32(pdev->dev.of_node, key, &val);
+		ret = of_property_read_u32(node, key, &val);
 		if (ret == -EINVAL) {
 			val = QCOM_RPM_FORCE_MODE_NONE;
 		} else if (ret < 0) {
-			dev_err(&pdev->dev, "failed to read %s\n", key);
+			dev_err(dev, "failed to read %s\n", key);
 			return ret;
 		}
 
@@ -775,25 +734,192 @@ static int rpm_reg_probe(struct platform_device *pdev)
 		}
 
 		if (force_mode == -1) {
-			dev_err(&pdev->dev, "invalid force mode\n");
+			dev_err(dev, "invalid force mode\n");
 			return -EINVAL;
 		}
 
 		ret = rpm_reg_set(vreg, &vreg->parts->fm, force_mode);
 		if (ret) {
-			dev_err(&pdev->dev, "failed to set force mode\n");
+			dev_err(dev, "failed to set force mode\n");
 			return ret;
 		}
 	}
 
-	config.dev = &pdev->dev;
-	config.init_data = initdata;
-	config.driver_data = vreg;
-	config.of_node = pdev->dev.of_node;
-	rdev = devm_regulator_register(&pdev->dev, &vreg->desc, &config);
-	if (IS_ERR(rdev)) {
-		dev_err(&pdev->dev, "can't register regulator\n");
-		return PTR_ERR(rdev);
+	return 0;
+}
+
+struct rpm_regulator_data {
+	const char *name;
+	int resource;
+	const struct qcom_rpm_reg *template;
+	const char *supply;
+};
+
+static const struct rpm_regulator_data rpm_pm8058_regulators[] = {
+	{ "l0",   QCOM_RPM_PM8058_LDO0,   &pm8058_nldo, "vdd_l0_l1_lvs"	},
+	{ "l1",   QCOM_RPM_PM8058_LDO1,   &pm8058_nldo, "vdd_l0_l1_lvs" },
+	{ "l2",   QCOM_RPM_PM8058_LDO2,   &pm8058_pldo, "vdd_l2_l11_l12" },
+	{ "l3",   QCOM_RPM_PM8058_LDO3,   &pm8058_pldo, "vdd_l3_l4_l5" },
+	{ "l4",   QCOM_RPM_PM8058_LDO4,   &pm8058_pldo, "vdd_l3_l4_l5" },
+	{ "l5",   QCOM_RPM_PM8058_LDO5,   &pm8058_pldo, "vdd_l3_l4_l5" },
+	{ "l6",   QCOM_RPM_PM8058_LDO6,   &pm8058_pldo, "vdd_l6_l7" },
+	{ "l7",   QCOM_RPM_PM8058_LDO7,   &pm8058_pldo, "vdd_l6_l7" },
+	{ "l8",   QCOM_RPM_PM8058_LDO8,   &pm8058_pldo, "vdd_l8" },
+	{ "l9",   QCOM_RPM_PM8058_LDO9,   &pm8058_pldo, "vdd_l9" },
+	{ "l10",  QCOM_RPM_PM8058_LDO10,  &pm8058_pldo, "vdd_l10" },
+	{ "l11",  QCOM_RPM_PM8058_LDO11,  &pm8058_pldo, "vdd_l2_l11_l12" },
+	{ "l12",  QCOM_RPM_PM8058_LDO12,  &pm8058_pldo, "vdd_l2_l11_l12" },
+	{ "l13",  QCOM_RPM_PM8058_LDO13,  &pm8058_pldo, "vdd_l13_l16" },
+	{ "l14",  QCOM_RPM_PM8058_LDO14,  &pm8058_pldo, "vdd_l14_l15" },
+	{ "l15",  QCOM_RPM_PM8058_LDO15,  &pm8058_pldo, "vdd_l14_l15" },
+	{ "l16",  QCOM_RPM_PM8058_LDO16,  &pm8058_pldo, "vdd_l13_l16" },
+	{ "l17",  QCOM_RPM_PM8058_LDO17,  &pm8058_pldo, "vdd_l17_l18" },
+	{ "l18",  QCOM_RPM_PM8058_LDO18,  &pm8058_pldo, "vdd_l17_l18" },
+	{ "l19",  QCOM_RPM_PM8058_LDO19,  &pm8058_pldo, "vdd_l19_l20" },
+	{ "l20",  QCOM_RPM_PM8058_LDO20,  &pm8058_pldo, "vdd_l19_l20" },
+	{ "l21",  QCOM_RPM_PM8058_LDO21,  &pm8058_nldo, "vdd_l21" },
+	{ "l22",  QCOM_RPM_PM8058_LDO22,  &pm8058_nldo, "vdd_l22" },
+	{ "l23",  QCOM_RPM_PM8058_LDO23,  &pm8058_nldo, "vdd_l23_l24_l25" },
+	{ "l24",  QCOM_RPM_PM8058_LDO24,  &pm8058_nldo, "vdd_l23_l24_l25" },
+	{ "l25",  QCOM_RPM_PM8058_LDO25,  &pm8058_nldo, "vdd_l23_l24_l25" },
+
+	{ "s0",   QCOM_RPM_PM8058_SMPS0,  &pm8058_smps, "vdd_s0" },
+	{ "s1",   QCOM_RPM_PM8058_SMPS1,  &pm8058_smps, "vdd_s1" },
+	{ "s2",   QCOM_RPM_PM8058_SMPS2,  &pm8058_smps, "vdd_s2" },
+	{ "s3",   QCOM_RPM_PM8058_SMPS3,  &pm8058_smps, "vdd_s3" },
+	{ "s4",   QCOM_RPM_PM8058_SMPS4,  &pm8058_smps, "vdd_s4" },
+
+	{ "lvs0", QCOM_RPM_PM8058_LVS0, &pm8058_switch, "vdd_l0_l1_lvs" },
+	{ "lvs1", QCOM_RPM_PM8058_LVS1, &pm8058_switch, "vdd_l0_l1_lvs" },
+
+	{ "ncp",  QCOM_RPM_PM8058_NCP, &pm8058_ncp, "vdd_ncp" },
+	{ }
+};
+
+static const struct rpm_regulator_data rpm_pm8901_regulators[] = {
+	{ "l0",   QCOM_RPM_PM8901_LDO0, &pm8901_nldo, "vdd_l0" },
+	{ "l1",   QCOM_RPM_PM8901_LDO1, &pm8901_pldo, "vdd_l1" },
+	{ "l2",   QCOM_RPM_PM8901_LDO2, &pm8901_pldo, "vdd_l2" },
+	{ "l3",   QCOM_RPM_PM8901_LDO3, &pm8901_pldo, "vdd_l3" },
+	{ "l4",   QCOM_RPM_PM8901_LDO4, &pm8901_pldo, "vdd_l4" },
+	{ "l5",   QCOM_RPM_PM8901_LDO5, &pm8901_pldo, "vdd_l5" },
+	{ "l6",   QCOM_RPM_PM8901_LDO6, &pm8901_pldo, "vdd_l6" },
+
+	{ "s0",   QCOM_RPM_PM8901_SMPS0, &pm8901_ftsmps, "vdd_s0" },
+	{ "s1",   QCOM_RPM_PM8901_SMPS1, &pm8901_ftsmps, "vdd_s1" },
+	{ "s2",   QCOM_RPM_PM8901_SMPS2, &pm8901_ftsmps, "vdd_s2" },
+	{ "s3",   QCOM_RPM_PM8901_SMPS3, &pm8901_ftsmps, "vdd_s3" },
+	{ "s4",   QCOM_RPM_PM8901_SMPS4, &pm8901_ftsmps, "vdd_s4" },
+
+	{ "lvs0", QCOM_RPM_PM8901_LVS0, &pm8901_switch, "lvs0_in" },
+	{ "lvs1", QCOM_RPM_PM8901_LVS1, &pm8901_switch, "lvs1_in" },
+	{ "lvs2", QCOM_RPM_PM8901_LVS2, &pm8901_switch, "lvs2_in" },
+	{ "lvs3", QCOM_RPM_PM8901_LVS3, &pm8901_switch, "lvs3_in" },
+
+	{ "mvs", QCOM_RPM_PM8901_MVS, &pm8901_switch, "mvs_in" },
+	{ }
+};
+
+static const struct rpm_regulator_data rpm_pm8921_regulators[] = {
+	{ "s1",  QCOM_RPM_PM8921_SMPS1, &pm8921_smps, "vdd_s1" },
+	{ "s2",  QCOM_RPM_PM8921_SMPS2, &pm8921_smps, "vdd_s2" },
+	{ "s3",  QCOM_RPM_PM8921_SMPS3, &pm8921_smps },
+	{ "s4",  QCOM_RPM_PM8921_SMPS4, &pm8921_smps, "vdd_s4" },
+	{ "s7",  QCOM_RPM_PM8921_SMPS7, &pm8921_smps, "vdd_s7" },
+	{ "s8",  QCOM_RPM_PM8921_SMPS8, &pm8921_smps, "vdd_s8"  },
+
+	{ "l1",  QCOM_RPM_PM8921_LDO1, &pm8921_nldo, "vdd_l1_l2_l12_l18" },
+	{ "l2",  QCOM_RPM_PM8921_LDO2, &pm8921_nldo, "vdd_l1_l2_l12_l18" },
+	{ "l3",  QCOM_RPM_PM8921_LDO3, &pm8921_pldo, "vdd_l3_l15_l17" },
+	{ "l4",  QCOM_RPM_PM8921_LDO4, &pm8921_pldo, "vdd_l4_l14" },
+	{ "l5",  QCOM_RPM_PM8921_LDO5, &pm8921_pldo, "vdd_l5_l8_l16" },
+	{ "l6",  QCOM_RPM_PM8921_LDO6, &pm8921_pldo, "vdd_l6_l7" },
+	{ "l7",  QCOM_RPM_PM8921_LDO7, &pm8921_pldo, "vdd_l6_l7" },
+	{ "l8",  QCOM_RPM_PM8921_LDO8, &pm8921_pldo, "vdd_l5_l8_l16" },
+	{ "l9",  QCOM_RPM_PM8921_LDO9, &pm8921_pldo, "vdd_l9_l11" },
+	{ "l10", QCOM_RPM_PM8921_LDO10, &pm8921_pldo, "vdd_l10_l22" },
+	{ "l11", QCOM_RPM_PM8921_LDO11, &pm8921_pldo, "vdd_l9_l11" },
+	{ "l12", QCOM_RPM_PM8921_LDO12, &pm8921_nldo, "vdd_l1_l2_l12_l18" },
+	{ "l14", QCOM_RPM_PM8921_LDO14, &pm8921_pldo, "vdd_l4_l14" },
+	{ "l15", QCOM_RPM_PM8921_LDO15, &pm8921_pldo, "vdd_l3_l15_l17" },
+	{ "l16", QCOM_RPM_PM8921_LDO16, &pm8921_pldo, "vdd_l5_l8_l16" },
+	{ "l17", QCOM_RPM_PM8921_LDO17, &pm8921_pldo, "vdd_l3_l15_l17" },
+	{ "l18", QCOM_RPM_PM8921_LDO18, &pm8921_nldo, "vdd_l1_l2_l12_l18" },
+	{ "l21", QCOM_RPM_PM8921_LDO21, &pm8921_pldo, "vdd_l21_l23_l29" },
+	{ "l22", QCOM_RPM_PM8921_LDO22, &pm8921_pldo, "vdd_l10_l22" },
+	{ "l23", QCOM_RPM_PM8921_LDO23, &pm8921_pldo, "vdd_l21_l23_l29" },
+	{ "l24", QCOM_RPM_PM8921_LDO24, &pm8921_nldo1200, "vdd_l24" },
+	{ "l25", QCOM_RPM_PM8921_LDO25, &pm8921_nldo1200, "vdd_l25" },
+	{ "l26", QCOM_RPM_PM8921_LDO26, &pm8921_nldo1200, "vdd_l26" },
+	{ "l27", QCOM_RPM_PM8921_LDO27, &pm8921_nldo1200, "vdd_l27" },
+	{ "l28", QCOM_RPM_PM8921_LDO28, &pm8921_nldo1200, "vdd_l28" },
+	{ "l29", QCOM_RPM_PM8921_LDO29, &pm8921_pldo, "vdd_l21_l23_l29" },
+
+	{ "lvs1", QCOM_RPM_PM8921_LVS1, &pm8921_switch, "vin_lvs1_3_6" },
+	{ "lvs2", QCOM_RPM_PM8921_LVS2, &pm8921_switch, "vin_lvs2" },
+	{ "lvs3", QCOM_RPM_PM8921_LVS3, &pm8921_switch, "vin_lvs1_3_6" },
+	{ "lvs4", QCOM_RPM_PM8921_LVS4, &pm8921_switch, "vin_lvs4_5_7" },
+	{ "lvs5", QCOM_RPM_PM8921_LVS5, &pm8921_switch, "vin_lvs4_5_7" },
+	{ "lvs6", QCOM_RPM_PM8921_LVS6, &pm8921_switch, "vin_lvs1_3_6" },
+	{ "lvs7", QCOM_RPM_PM8921_LVS7, &pm8921_switch, "vin_lvs4_5_7" },
+
+	{ "usb-switch", QCOM_RPM_USB_OTG_SWITCH, &pm8921_switch, "vin_5vs" },
+	{ "hdmi-switch", QCOM_RPM_HDMI_SWITCH, &pm8921_switch, "vin_5vs" },
+	{ "ncp", QCOM_RPM_PM8921_NCP, &pm8921_ncp, "vdd_ncp" },
+	{ }
+};
+
+static const struct of_device_id rpm_of_match[] = {
+	{ .compatible = "qcom,rpm-pm8058-regulators", .data = &rpm_pm8058_regulators },
+	{ .compatible = "qcom,rpm-pm8901-regulators", .data = &rpm_pm8901_regulators },
+	{ .compatible = "qcom,rpm-pm8921-regulators", .data = &rpm_pm8921_regulators },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, rpm_of_match);
+
+static int rpm_reg_probe(struct platform_device *pdev)
+{
+	const struct rpm_regulator_data *reg;
+	const struct of_device_id *match;
+	struct regulator_config config = { };
+	struct regulator_dev *rdev;
+	struct qcom_rpm_reg *vreg;
+	struct qcom_rpm *rpm;
+
+	rpm = dev_get_drvdata(pdev->dev.parent);
+	if (!rpm) {
+		dev_err(&pdev->dev, "unable to retrieve handle to rpm\n");
+		return -ENODEV;
+	}
+
+	match = of_match_device(rpm_of_match, &pdev->dev);
+	for (reg = match->data; reg->name; reg++) {
+		vreg = devm_kmalloc(&pdev->dev, sizeof(*vreg), GFP_KERNEL);
+		if (!vreg)
+			return -ENOMEM;
+
+		memcpy(vreg, reg->template, sizeof(*vreg));
+		mutex_init(&vreg->lock);
+
+		vreg->dev = &pdev->dev;
+		vreg->resource = reg->resource;
+		vreg->rpm = rpm;
+
+		vreg->desc.id = -1;
+		vreg->desc.owner = THIS_MODULE;
+		vreg->desc.type = REGULATOR_VOLTAGE;
+		vreg->desc.name = reg->name;
+		vreg->desc.supply_name = reg->supply;
+		vreg->desc.of_match = reg->name;
+		vreg->desc.of_parse_cb = rpm_reg_of_parse;
+
+		config.dev = &pdev->dev;
+		config.driver_data = vreg;
+		rdev = devm_regulator_register(&pdev->dev, &vreg->desc, &config);
+		if (IS_ERR(rdev)) {
+			dev_err(&pdev->dev, "failed to register %s\n", reg->name);
+			return PTR_ERR(rdev);
+		}
 	}
 
 	return 0;
diff --git a/drivers/regulator/rk808-regulator.c b/drivers/regulator/rk808-regulator.c
index 1f93b75..3fd4435 100644
--- a/drivers/regulator/rk808-regulator.c
+++ b/drivers/regulator/rk808-regulator.c
@@ -235,6 +235,7 @@ static const struct regulator_desc rk808_reg[] = {
 		.vsel_mask = RK808_LDO_VSEL_MASK,
 		.enable_reg = RK808_LDO_EN_REG,
 		.enable_mask = BIT(0),
+		.enable_time = 400,
 		.owner = THIS_MODULE,
 	}, {
 		.name = "LDO_REG2",
@@ -249,6 +250,7 @@ static const struct regulator_desc rk808_reg[] = {
 		.vsel_mask = RK808_LDO_VSEL_MASK,
 		.enable_reg = RK808_LDO_EN_REG,
 		.enable_mask = BIT(1),
+		.enable_time = 400,
 		.owner = THIS_MODULE,
 	}, {
 		.name = "LDO_REG3",
@@ -263,6 +265,7 @@ static const struct regulator_desc rk808_reg[] = {
 		.vsel_mask = RK808_BUCK4_VSEL_MASK,
 		.enable_reg = RK808_LDO_EN_REG,
 		.enable_mask = BIT(2),
+		.enable_time = 400,
 		.owner = THIS_MODULE,
 	}, {
 		.name = "LDO_REG4",
@@ -277,6 +280,7 @@ static const struct regulator_desc rk808_reg[] = {
 		.vsel_mask = RK808_LDO_VSEL_MASK,
 		.enable_reg = RK808_LDO_EN_REG,
 		.enable_mask = BIT(3),
+		.enable_time = 400,
 		.owner = THIS_MODULE,
 	}, {
 		.name = "LDO_REG5",
@@ -291,6 +295,7 @@ static const struct regulator_desc rk808_reg[] = {
 		.vsel_mask = RK808_LDO_VSEL_MASK,
 		.enable_reg = RK808_LDO_EN_REG,
 		.enable_mask = BIT(4),
+		.enable_time = 400,
 		.owner = THIS_MODULE,
 	}, {
 		.name = "LDO_REG6",
@@ -305,6 +310,7 @@ static const struct regulator_desc rk808_reg[] = {
 		.vsel_mask = RK808_LDO_VSEL_MASK,
 		.enable_reg = RK808_LDO_EN_REG,
 		.enable_mask = BIT(5),
+		.enable_time = 400,
 		.owner = THIS_MODULE,
 	}, {
 		.name = "LDO_REG7",
@@ -319,6 +325,7 @@ static const struct regulator_desc rk808_reg[] = {
 		.vsel_mask = RK808_LDO_VSEL_MASK,
 		.enable_reg = RK808_LDO_EN_REG,
 		.enable_mask = BIT(6),
+		.enable_time = 400,
 		.owner = THIS_MODULE,
 	}, {
 		.name = "LDO_REG8",
@@ -333,6 +340,7 @@ static const struct regulator_desc rk808_reg[] = {
 		.vsel_mask = RK808_LDO_VSEL_MASK,
 		.enable_reg = RK808_LDO_EN_REG,
 		.enable_mask = BIT(7),
+		.enable_time = 400,
 		.owner = THIS_MODULE,
 	}, {
 		.name = "SWITCH_REG1",
diff --git a/drivers/regulator/stw481x-vmmc.c b/drivers/regulator/stw481x-vmmc.c
index 89025f5..7d2ae3e 100644
--- a/drivers/regulator/stw481x-vmmc.c
+++ b/drivers/regulator/stw481x-vmmc.c
@@ -56,6 +56,7 @@ static int stw481x_vmmc_regulator_probe(struct platform_device *pdev)
 {
 	struct stw481x *stw481x = dev_get_platdata(&pdev->dev);
 	struct regulator_config config = { };
+	struct regulator_dev *rdev;
 	int ret;
 
 	/* First disable the external VMMC if it's active */
@@ -75,12 +76,11 @@ static int stw481x_vmmc_regulator_probe(struct platform_device *pdev)
 						      pdev->dev.of_node,
 						      &vmmc_regulator);
 
-	stw481x->vmmc_regulator = devm_regulator_register(&pdev->dev,
-						&vmmc_regulator, &config);
-	if (IS_ERR(stw481x->vmmc_regulator)) {
+	rdev = devm_regulator_register(&pdev->dev, &vmmc_regulator, &config);
+	if (IS_ERR(rdev)) {
 		dev_err(&pdev->dev,
 			"error initializing STw481x VMMC regulator\n");
-		return PTR_ERR(stw481x->vmmc_regulator);
+		return PTR_ERR(rdev);
 	}
 
 	dev_info(&pdev->dev, "initialized STw481x VMMC regulator\n");
diff --git a/drivers/regulator/tps65910-regulator.c b/drivers/regulator/tps65910-regulator.c
index e2cffe0..fb991ec 100644
--- a/drivers/regulator/tps65910-regulator.c
+++ b/drivers/regulator/tps65910-regulator.c
@@ -17,6 +17,7 @@
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/err.h>
+#include <linux/of.h>
 #include <linux/platform_device.h>
 #include <linux/regulator/driver.h>
 #include <linux/regulator/machine.h>
diff --git a/drivers/regulator/wm8350-regulator.c b/drivers/regulator/wm8350-regulator.c
index 7ec7c39..95f6b04 100644
--- a/drivers/regulator/wm8350-regulator.c
+++ b/drivers/regulator/wm8350-regulator.c
@@ -1151,17 +1151,16 @@ static const struct regulator_desc wm8350_reg[NUM_WM8350_REGULATORS] = {
 static irqreturn_t pmic_uv_handler(int irq, void *data)
 {
 	struct regulator_dev *rdev = (struct regulator_dev *)data;
-	struct wm8350 *wm8350 = rdev_get_drvdata(rdev);
 
 	mutex_lock(&rdev->mutex);
 	if (irq == WM8350_IRQ_CS1 || irq == WM8350_IRQ_CS2)
 		regulator_notifier_call_chain(rdev,
 					      REGULATOR_EVENT_REGULATION_OUT,
-					      wm8350);
+					      NULL);
 	else
 		regulator_notifier_call_chain(rdev,
 					      REGULATOR_EVENT_UNDER_VOLTAGE,
-					      wm8350);
+					      NULL);
 	mutex_unlock(&rdev->mutex);
 
 	return IRQ_HANDLED;
diff --git a/drivers/rpmsg/virtio_rpmsg_bus.c b/drivers/rpmsg/virtio_rpmsg_bus.c
index 92f6af6..73354ee 100644
--- a/drivers/rpmsg/virtio_rpmsg_bus.c
+++ b/drivers/rpmsg/virtio_rpmsg_bus.c
@@ -951,6 +951,7 @@ static int rpmsg_probe(struct virtio_device *vdev)
 	void *bufs_va;
 	int err = 0, i;
 	size_t total_buf_space;
+	bool notify;
 
 	vrp = kzalloc(sizeof(*vrp), GFP_KERNEL);
 	if (!vrp)
@@ -1030,8 +1031,22 @@ static int rpmsg_probe(struct virtio_device *vdev)
 		}
 	}
 
+	/*
+	 * Prepare to kick but don't notify yet - we can't do this before
+	 * device is ready.
+	 */
+	notify = virtqueue_kick_prepare(vrp->rvq);
+
+	/* From this point on, we can notify and get callbacks. */
+	virtio_device_ready(vdev);
+
 	/* tell the remote processor it can start sending messages */
-	virtqueue_kick(vrp->rvq);
+	/*
+	 * this might be concurrent with callbacks, but we are only
+	 * doing notify, not a full kick here, so that's ok.
+	 */
+	if (notify)
+		virtqueue_notify(vrp->rvq);
 
 	dev_info(&vdev->dev, "rpmsg host is online\n");
 
diff --git a/drivers/rtc/class.c b/drivers/rtc/class.c
index 472a5ad..c29ba7e 100644
--- a/drivers/rtc/class.c
+++ b/drivers/rtc/class.c
@@ -55,7 +55,7 @@ static int rtc_suspend(struct device *dev)
 	struct timespec64	delta, delta_delta;
 	int err;
 
-	if (has_persistent_clock())
+	if (timekeeping_rtc_skipsuspend())
 		return 0;
 
 	if (strcmp(dev_name(&rtc->dev), CONFIG_RTC_HCTOSYS_DEVICE) != 0)
@@ -102,7 +102,7 @@ static int rtc_resume(struct device *dev)
 	struct timespec64	sleep_time;
 	int err;
 
-	if (has_persistent_clock())
+	if (timekeeping_rtc_skipresume())
 		return 0;
 
 	rtc_hctosys_ret = -ENODEV;
@@ -117,10 +117,6 @@ static int rtc_resume(struct device *dev)
 		return 0;
 	}
 
-	if (rtc_valid_tm(&tm) != 0) {
-		pr_debug("%s:  bogus resume time\n", dev_name(&rtc->dev));
-		return 0;
-	}
 	new_rtc.tv_sec = rtc_tm_to_time64(&tm);
 	new_rtc.tv_nsec = 0;
 
diff --git a/drivers/rtc/interface.c b/drivers/rtc/interface.c
index 37215cf..d43ee40 100644
--- a/drivers/rtc/interface.c
+++ b/drivers/rtc/interface.c
@@ -72,7 +72,11 @@ int rtc_set_time(struct rtc_device *rtc, struct rtc_time *tm)
 		err = -ENODEV;
 	else if (rtc->ops->set_time)
 		err = rtc->ops->set_time(rtc->dev.parent, tm);
-	else if (rtc->ops->set_mmss) {
+	else if (rtc->ops->set_mmss64) {
+		time64_t secs64 = rtc_tm_to_time64(tm);
+
+		err = rtc->ops->set_mmss64(rtc->dev.parent, secs64);
+	} else if (rtc->ops->set_mmss) {
 		time64_t secs64 = rtc_tm_to_time64(tm);
 		err = rtc->ops->set_mmss(rtc->dev.parent, secs64);
 	} else
@@ -96,6 +100,8 @@ int rtc_set_mmss(struct rtc_device *rtc, unsigned long secs)
 
 	if (!rtc->ops)
 		err = -ENODEV;
+	else if (rtc->ops->set_mmss64)
+		err = rtc->ops->set_mmss64(rtc->dev.parent, secs);
 	else if (rtc->ops->set_mmss)
 		err = rtc->ops->set_mmss(rtc->dev.parent, secs);
 	else if (rtc->ops->read_time && rtc->ops->set_time) {
diff --git a/drivers/rtc/rtc-ab3100.c b/drivers/rtc/rtc-ab3100.c
index 1d0340f..9b725c5 100644
--- a/drivers/rtc/rtc-ab3100.c
+++ b/drivers/rtc/rtc-ab3100.c
@@ -43,21 +43,21 @@
 /*
  * RTC clock functions and device struct declaration
  */
-static int ab3100_rtc_set_mmss(struct device *dev, unsigned long secs)
+static int ab3100_rtc_set_mmss(struct device *dev, time64_t secs)
 {
 	u8 regs[] = {AB3100_TI0, AB3100_TI1, AB3100_TI2,
 		     AB3100_TI3, AB3100_TI4, AB3100_TI5};
 	unsigned char buf[6];
-	u64 fat_time = (u64) secs * AB3100_RTC_CLOCK_RATE * 2;
+	u64 hw_counter = secs * AB3100_RTC_CLOCK_RATE * 2;
 	int err = 0;
 	int i;
 
-	buf[0] = (fat_time) & 0xFF;
-	buf[1] = (fat_time >> 8) & 0xFF;
-	buf[2] = (fat_time >> 16) & 0xFF;
-	buf[3] = (fat_time >> 24) & 0xFF;
-	buf[4] = (fat_time >> 32) & 0xFF;
-	buf[5] = (fat_time >> 40) & 0xFF;
+	buf[0] = (hw_counter) & 0xFF;
+	buf[1] = (hw_counter >> 8) & 0xFF;
+	buf[2] = (hw_counter >> 16) & 0xFF;
+	buf[3] = (hw_counter >> 24) & 0xFF;
+	buf[4] = (hw_counter >> 32) & 0xFF;
+	buf[5] = (hw_counter >> 40) & 0xFF;
 
 	for (i = 0; i < 6; i++) {
 		err = abx500_set_register_interruptible(dev, 0,
@@ -75,7 +75,7 @@ static int ab3100_rtc_set_mmss(struct device *dev, unsigned long secs)
 
 static int ab3100_rtc_read_time(struct device *dev, struct rtc_time *tm)
 {
-	unsigned long time;
+	time64_t time;
 	u8 rtcval;
 	int err;
 
@@ -88,7 +88,7 @@ static int ab3100_rtc_read_time(struct device *dev, struct rtc_time *tm)
 		dev_info(dev, "clock not set (lost power)");
 		return -EINVAL;
 	} else {
-		u64 fat_time;
+		u64 hw_counter;
 		u8 buf[6];
 
 		/* Read out time registers */
@@ -98,22 +98,21 @@ static int ab3100_rtc_read_time(struct device *dev, struct rtc_time *tm)
 		if (err != 0)
 			return err;
 
-		fat_time = ((u64) buf[5] << 40) | ((u64) buf[4] << 32) |
+		hw_counter = ((u64) buf[5] << 40) | ((u64) buf[4] << 32) |
 			((u64) buf[3] << 24) | ((u64) buf[2] << 16) |
 			((u64) buf[1] << 8) | (u64) buf[0];
-		time = (unsigned long) (fat_time /
-					(u64) (AB3100_RTC_CLOCK_RATE * 2));
+		time = hw_counter / (u64) (AB3100_RTC_CLOCK_RATE * 2);
 	}
 
-	rtc_time_to_tm(time, tm);
+	rtc_time64_to_tm(time, tm);
 
 	return rtc_valid_tm(tm);
 }
 
 static int ab3100_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alarm)
 {
-	unsigned long time;
-	u64 fat_time;
+	time64_t time;
+	u64 hw_counter;
 	u8 buf[6];
 	u8 rtcval;
 	int err;
@@ -134,11 +133,11 @@ static int ab3100_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alarm)
 						     AB3100_AL0, buf, 4);
 	if (err)
 		return err;
-	fat_time = ((u64) buf[3] << 40) | ((u64) buf[2] << 32) |
+	hw_counter = ((u64) buf[3] << 40) | ((u64) buf[2] << 32) |
 		((u64) buf[1] << 24) | ((u64) buf[0] << 16);
-	time = (unsigned long) (fat_time / (u64) (AB3100_RTC_CLOCK_RATE * 2));
+	time = hw_counter / (u64) (AB3100_RTC_CLOCK_RATE * 2);
 
-	rtc_time_to_tm(time, &alarm->time);
+	rtc_time64_to_tm(time, &alarm->time);
 
 	return rtc_valid_tm(&alarm->time);
 }
@@ -147,17 +146,17 @@ static int ab3100_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alarm)
 {
 	u8 regs[] = {AB3100_AL0, AB3100_AL1, AB3100_AL2, AB3100_AL3};
 	unsigned char buf[4];
-	unsigned long secs;
-	u64 fat_time;
+	time64_t secs;
+	u64 hw_counter;
 	int err;
 	int i;
 
-	rtc_tm_to_time(&alarm->time, &secs);
-	fat_time = (u64) secs * AB3100_RTC_CLOCK_RATE * 2;
-	buf[0] = (fat_time >> 16) & 0xFF;
-	buf[1] = (fat_time >> 24) & 0xFF;
-	buf[2] = (fat_time >> 32) & 0xFF;
-	buf[3] = (fat_time >> 40) & 0xFF;
+	secs = rtc_tm_to_time64(&alarm->time);
+	hw_counter = secs * AB3100_RTC_CLOCK_RATE * 2;
+	buf[0] = (hw_counter >> 16) & 0xFF;
+	buf[1] = (hw_counter >> 24) & 0xFF;
+	buf[2] = (hw_counter >> 32) & 0xFF;
+	buf[3] = (hw_counter >> 40) & 0xFF;
 
 	/* Set the alarm */
 	for (i = 0; i < 4; i++) {
@@ -193,7 +192,7 @@ static int ab3100_rtc_irq_enable(struct device *dev, unsigned int enabled)
 
 static const struct rtc_class_ops ab3100_rtc_ops = {
 	.read_time	= ab3100_rtc_read_time,
-	.set_mmss	= ab3100_rtc_set_mmss,
+	.set_mmss64	= ab3100_rtc_set_mmss,
 	.read_alarm	= ab3100_rtc_read_alarm,
 	.set_alarm	= ab3100_rtc_set_alarm,
 	.alarm_irq_enable = ab3100_rtc_irq_enable,
diff --git a/drivers/rtc/rtc-at91rm9200.c b/drivers/rtc/rtc-at91rm9200.c
index 70a5d94..b283a1a 100644
--- a/drivers/rtc/rtc-at91rm9200.c
+++ b/drivers/rtc/rtc-at91rm9200.c
@@ -31,6 +31,7 @@
 #include <linux/io.h>
 #include <linux/of.h>
 #include <linux/of_device.h>
+#include <linux/suspend.h>
 #include <linux/uaccess.h>
 
 #include "rtc-at91rm9200.h"
@@ -54,6 +55,10 @@ static void __iomem *at91_rtc_regs;
 static int irq;
 static DEFINE_SPINLOCK(at91_rtc_lock);
 static u32 at91_rtc_shadow_imr;
+static bool suspended;
+static DEFINE_SPINLOCK(suspended_lock);
+static unsigned long cached_events;
+static u32 at91_rtc_imr;
 
 static void at91_rtc_write_ier(u32 mask)
 {
@@ -290,7 +295,9 @@ static irqreturn_t at91_rtc_interrupt(int irq, void *dev_id)
 	struct rtc_device *rtc = platform_get_drvdata(pdev);
 	unsigned int rtsr;
 	unsigned long events = 0;
+	int ret = IRQ_NONE;
 
+	spin_lock(&suspended_lock);
 	rtsr = at91_rtc_read(AT91_RTC_SR) & at91_rtc_read_imr();
 	if (rtsr) {		/* this interrupt is shared!  Is it ours? */
 		if (rtsr & AT91_RTC_ALARM)
@@ -304,14 +311,22 @@ static irqreturn_t at91_rtc_interrupt(int irq, void *dev_id)
 
 		at91_rtc_write(AT91_RTC_SCCR, rtsr);	/* clear status reg */
 
-		rtc_update_irq(rtc, 1, events);
+		if (!suspended) {
+			rtc_update_irq(rtc, 1, events);
 
-		dev_dbg(&pdev->dev, "%s(): num=%ld, events=0x%02lx\n", __func__,
-			events >> 8, events & 0x000000FF);
+			dev_dbg(&pdev->dev, "%s(): num=%ld, events=0x%02lx\n",
+				__func__, events >> 8, events & 0x000000FF);
+		} else {
+			cached_events |= events;
+			at91_rtc_write_idr(at91_rtc_imr);
+			pm_system_wakeup();
+		}
 
-		return IRQ_HANDLED;
+		ret = IRQ_HANDLED;
 	}
-	return IRQ_NONE;		/* not handled */
+	spin_unlock(&suspended_lock);
+
+	return ret;
 }
 
 static const struct at91_rtc_config at91rm9200_config = {
@@ -401,8 +416,8 @@ static int __init at91_rtc_probe(struct platform_device *pdev)
 					AT91_RTC_CALEV);
 
 	ret = devm_request_irq(&pdev->dev, irq, at91_rtc_interrupt,
-				IRQF_SHARED,
-				"at91_rtc", pdev);
+			       IRQF_SHARED | IRQF_COND_SUSPEND,
+			       "at91_rtc", pdev);
 	if (ret) {
 		dev_err(&pdev->dev, "IRQ %d already in use.\n", irq);
 		return ret;
@@ -454,8 +469,6 @@ static void at91_rtc_shutdown(struct platform_device *pdev)
 
 /* AT91RM9200 RTC Power management control */
 
-static u32 at91_rtc_imr;
-
 static int at91_rtc_suspend(struct device *dev)
 {
 	/* this IRQ is shared with DBGU and other hardware which isn't
@@ -464,21 +477,42 @@ static int at91_rtc_suspend(struct device *dev)
 	at91_rtc_imr = at91_rtc_read_imr()
 			& (AT91_RTC_ALARM|AT91_RTC_SECEV);
 	if (at91_rtc_imr) {
-		if (device_may_wakeup(dev))
+		if (device_may_wakeup(dev)) {
+			unsigned long flags;
+
 			enable_irq_wake(irq);
-		else
+
+			spin_lock_irqsave(&suspended_lock, flags);
+			suspended = true;
+			spin_unlock_irqrestore(&suspended_lock, flags);
+		} else {
 			at91_rtc_write_idr(at91_rtc_imr);
+		}
 	}
 	return 0;
 }
 
 static int at91_rtc_resume(struct device *dev)
 {
+	struct rtc_device *rtc = dev_get_drvdata(dev);
+
 	if (at91_rtc_imr) {
-		if (device_may_wakeup(dev))
+		if (device_may_wakeup(dev)) {
+			unsigned long flags;
+
+			spin_lock_irqsave(&suspended_lock, flags);
+
+			if (cached_events) {
+				rtc_update_irq(rtc, 1, cached_events);
+				cached_events = 0;
+			}
+
+			suspended = false;
+			spin_unlock_irqrestore(&suspended_lock, flags);
+
 			disable_irq_wake(irq);
-		else
-			at91_rtc_write_ier(at91_rtc_imr);
+		}
+		at91_rtc_write_ier(at91_rtc_imr);
 	}
 	return 0;
 }
diff --git a/drivers/rtc/rtc-at91sam9.c b/drivers/rtc/rtc-at91sam9.c
index 2183fd2..5ccaee3 100644
--- a/drivers/rtc/rtc-at91sam9.c
+++ b/drivers/rtc/rtc-at91sam9.c
@@ -23,6 +23,7 @@
 #include <linux/io.h>
 #include <linux/mfd/syscon.h>
 #include <linux/regmap.h>
+#include <linux/suspend.h>
 #include <linux/clk.h>
 
 /*
@@ -77,6 +78,9 @@ struct sam9_rtc {
 	unsigned int		gpbr_offset;
 	int 			irq;
 	struct clk		*sclk;
+	bool			suspended;
+	unsigned long		events;
+	spinlock_t		lock;
 };
 
 #define rtt_readl(rtc, field) \
@@ -271,14 +275,9 @@ static int at91_rtc_proc(struct device *dev, struct seq_file *seq)
 	return 0;
 }
 
-/*
- * IRQ handler for the RTC
- */
-static irqreturn_t at91_rtc_interrupt(int irq, void *_rtc)
+static irqreturn_t at91_rtc_cache_events(struct sam9_rtc *rtc)
 {
-	struct sam9_rtc *rtc = _rtc;
 	u32 sr, mr;
-	unsigned long events = 0;
 
 	/* Shared interrupt may be for another device.  Note: reading
 	 * SR clears it, so we must only read it in this irq handler!
@@ -290,18 +289,54 @@ static irqreturn_t at91_rtc_interrupt(int irq, void *_rtc)
 
 	/* alarm status */
 	if (sr & AT91_RTT_ALMS)
-		events |= (RTC_AF | RTC_IRQF);
+		rtc->events |= (RTC_AF | RTC_IRQF);
 
 	/* timer update/increment */
 	if (sr & AT91_RTT_RTTINC)
-		events |= (RTC_UF | RTC_IRQF);
+		rtc->events |= (RTC_UF | RTC_IRQF);
+
+	return IRQ_HANDLED;
+}
+
+static void at91_rtc_flush_events(struct sam9_rtc *rtc)
+{
+	if (!rtc->events)
+		return;
 
-	rtc_update_irq(rtc->rtcdev, 1, events);
+	rtc_update_irq(rtc->rtcdev, 1, rtc->events);
+	rtc->events = 0;
 
 	pr_debug("%s: num=%ld, events=0x%02lx\n", __func__,
-		events >> 8, events & 0x000000FF);
+		rtc->events >> 8, rtc->events & 0x000000FF);
+}
 
-	return IRQ_HANDLED;
+/*
+ * IRQ handler for the RTC
+ */
+static irqreturn_t at91_rtc_interrupt(int irq, void *_rtc)
+{
+	struct sam9_rtc *rtc = _rtc;
+	int ret;
+
+	spin_lock(&rtc->lock);
+
+	ret = at91_rtc_cache_events(rtc);
+
+	/* We're called in suspended state */
+	if (rtc->suspended) {
+		/* Mask irqs coming from this peripheral */
+		rtt_writel(rtc, MR,
+			   rtt_readl(rtc, MR) &
+			   ~(AT91_RTT_ALMIEN | AT91_RTT_RTTINCIEN));
+		/* Trigger a system wakeup */
+		pm_system_wakeup();
+	} else {
+		at91_rtc_flush_events(rtc);
+	}
+
+	spin_unlock(&rtc->lock);
+
+	return ret;
 }
 
 static const struct rtc_class_ops at91_rtc_ops = {
@@ -421,7 +456,8 @@ static int at91_rtc_probe(struct platform_device *pdev)
 
 	/* register irq handler after we know what name we'll use */
 	ret = devm_request_irq(&pdev->dev, rtc->irq, at91_rtc_interrupt,
-				IRQF_SHARED, dev_name(&rtc->rtcdev->dev), rtc);
+			       IRQF_SHARED | IRQF_COND_SUSPEND,
+			       dev_name(&rtc->rtcdev->dev), rtc);
 	if (ret) {
 		dev_dbg(&pdev->dev, "can't share IRQ %d?\n", rtc->irq);
 		return ret;
@@ -482,7 +518,12 @@ static int at91_rtc_suspend(struct device *dev)
 	rtc->imr = mr & (AT91_RTT_ALMIEN | AT91_RTT_RTTINCIEN);
 	if (rtc->imr) {
 		if (device_may_wakeup(dev) && (mr & AT91_RTT_ALMIEN)) {
+			unsigned long flags;
+
 			enable_irq_wake(rtc->irq);
+			spin_lock_irqsave(&rtc->lock, flags);
+			rtc->suspended = true;
+			spin_unlock_irqrestore(&rtc->lock, flags);
 			/* don't let RTTINC cause wakeups */
 			if (mr & AT91_RTT_RTTINCIEN)
 				rtt_writel(rtc, MR, mr & ~AT91_RTT_RTTINCIEN);
@@ -499,10 +540,18 @@ static int at91_rtc_resume(struct device *dev)
 	u32		mr;
 
 	if (rtc->imr) {
+		unsigned long flags;
+
 		if (device_may_wakeup(dev))
 			disable_irq_wake(rtc->irq);
 		mr = rtt_readl(rtc, MR);
 		rtt_writel(rtc, MR, mr | rtc->imr);
+
+		spin_lock_irqsave(&rtc->lock, flags);
+		rtc->suspended = false;
+		at91_rtc_cache_events(rtc);
+		at91_rtc_flush_events(rtc);
+		spin_unlock_irqrestore(&rtc->lock, flags);
 	}
 
 	return 0;
diff --git a/drivers/rtc/rtc-ds1685.c b/drivers/rtc/rtc-ds1685.c
index 8c3bfcb..803869c 100644
--- a/drivers/rtc/rtc-ds1685.c
+++ b/drivers/rtc/rtc-ds1685.c
@@ -399,21 +399,21 @@ ds1685_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm)
 	 * of this RTC chip.  We check for it anyways in case support is
 	 * added in the future.
 	 */
-	if (unlikely((seconds >= 0xc0) && (seconds <= 0xff)))
+	if (unlikely(seconds >= 0xc0))
 		alrm->time.tm_sec = -1;
 	else
 		alrm->time.tm_sec = ds1685_rtc_bcd2bin(rtc, seconds,
 						       RTC_SECS_BCD_MASK,
 						       RTC_SECS_BIN_MASK);
 
-	if (unlikely((minutes >= 0xc0) && (minutes <= 0xff)))
+	if (unlikely(minutes >= 0xc0))
 		alrm->time.tm_min = -1;
 	else
 		alrm->time.tm_min = ds1685_rtc_bcd2bin(rtc, minutes,
 						       RTC_MINS_BCD_MASK,
 						       RTC_MINS_BIN_MASK);
 
-	if (unlikely((hours >= 0xc0) && (hours <= 0xff)))
+	if (unlikely(hours >= 0xc0))
 		alrm->time.tm_hour = -1;
 	else
 		alrm->time.tm_hour = ds1685_rtc_bcd2bin(rtc, hours,
@@ -472,13 +472,13 @@ ds1685_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm)
 	 * field, and we only support four fields.  We put the support
 	 * here anyways for the future.
 	 */
-	if (unlikely((seconds >= 0xc0) && (seconds <= 0xff)))
+	if (unlikely(seconds >= 0xc0))
 		seconds = 0xff;
 
-	if (unlikely((minutes >= 0xc0) && (minutes <= 0xff)))
+	if (unlikely(minutes >= 0xc0))
 		minutes = 0xff;
 
-	if (unlikely((hours >= 0xc0) && (hours <= 0xff)))
+	if (unlikely(hours >= 0xc0))
 		hours = 0xff;
 
 	alrm->time.tm_mon	= -1;
@@ -528,7 +528,6 @@ ds1685_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm)
 /* ----------------------------------------------------------------------- */
 /* /dev/rtcX Interface functions */
 
-#ifdef CONFIG_RTC_INTF_DEV
 /**
  * ds1685_rtc_alarm_irq_enable - replaces ioctl() RTC_AIE on/off.
  * @dev: pointer to device structure.
@@ -557,7 +556,6 @@ ds1685_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled)
 
 	return 0;
 }
-#endif
 /* ----------------------------------------------------------------------- */
 
 
@@ -1612,7 +1610,7 @@ ds1685_rtc_sysfs_time_regs_show(struct device *dev,
 		ds1685_rtc_sysfs_time_regs_lookup(attr->attr.name, false);
 
 	/* Make sure we actually matched something. */
-	if (!bcd_reg_info && !bin_reg_info)
+	if (!bcd_reg_info || !bin_reg_info)
 		return -EINVAL;
 
 	/* bcd_reg_info->reg == bin_reg_info->reg. */
@@ -1650,7 +1648,7 @@ ds1685_rtc_sysfs_time_regs_store(struct device *dev,
 		return -EINVAL;
 
 	/* Make sure we actually matched something. */
-	if (!bcd_reg_info && !bin_reg_info)
+	if (!bcd_reg_info || !bin_reg_info)
 		return -EINVAL;
 
 	/* Check for a valid range. */
diff --git a/drivers/rtc/rtc-mc13xxx.c b/drivers/rtc/rtc-mc13xxx.c
index 5bce904..32df1d8 100644
--- a/drivers/rtc/rtc-mc13xxx.c
+++ b/drivers/rtc/rtc-mc13xxx.c
@@ -83,20 +83,19 @@ static int mc13xxx_rtc_read_time(struct device *dev, struct rtc_time *tm)
 			return ret;
 	} while (days1 != days2);
 
-	rtc_time_to_tm(days1 * SEC_PER_DAY + seconds, tm);
+	rtc_time64_to_tm((time64_t)days1 * SEC_PER_DAY + seconds, tm);
 
 	return rtc_valid_tm(tm);
 }
 
-static int mc13xxx_rtc_set_mmss(struct device *dev, unsigned long secs)
+static int mc13xxx_rtc_set_mmss(struct device *dev, time64_t secs)
 {
 	struct mc13xxx_rtc *priv = dev_get_drvdata(dev);
 	unsigned int seconds, days;
 	unsigned int alarmseconds;
 	int ret;
 
-	seconds = secs % SEC_PER_DAY;
-	days = secs / SEC_PER_DAY;
+	days = div_s64_rem(secs, SEC_PER_DAY, &seconds);
 
 	mc13xxx_lock(priv->mc13xxx);
 
@@ -159,7 +158,7 @@ static int mc13xxx_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alarm)
 {
 	struct mc13xxx_rtc *priv = dev_get_drvdata(dev);
 	unsigned seconds, days;
-	unsigned long s1970;
+	time64_t s1970;
 	int enabled, pending;
 	int ret;
 
@@ -189,10 +188,10 @@ out:
 	alarm->enabled = enabled;
 	alarm->pending = pending;
 
-	s1970 = days * SEC_PER_DAY + seconds;
+	s1970 = (time64_t)days * SEC_PER_DAY + seconds;
 
-	rtc_time_to_tm(s1970, &alarm->time);
-	dev_dbg(dev, "%s: %lu\n", __func__, s1970);
+	rtc_time64_to_tm(s1970, &alarm->time);
+	dev_dbg(dev, "%s: %lld\n", __func__, (long long)s1970);
 
 	return 0;
 }
@@ -200,8 +199,8 @@ out:
 static int mc13xxx_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alarm)
 {
 	struct mc13xxx_rtc *priv = dev_get_drvdata(dev);
-	unsigned long s1970;
-	unsigned seconds, days;
+	time64_t s1970;
+	u32 seconds, days;
 	int ret;
 
 	mc13xxx_lock(priv->mc13xxx);
@@ -215,20 +214,17 @@ static int mc13xxx_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alarm)
 	if (unlikely(ret))
 		goto out;
 
-	ret = rtc_tm_to_time(&alarm->time, &s1970);
-	if (unlikely(ret))
-		goto out;
+	s1970 = rtc_tm_to_time64(&alarm->time);
 
-	dev_dbg(dev, "%s: o%2.s %lu\n", __func__, alarm->enabled ? "n" : "ff",
-			s1970);
+	dev_dbg(dev, "%s: o%2.s %lld\n", __func__, alarm->enabled ? "n" : "ff",
+			(long long)s1970);
 
 	ret = mc13xxx_rtc_irq_enable_unlocked(dev, alarm->enabled,
 			MC13XXX_IRQ_TODA);
 	if (unlikely(ret))
 		goto out;
 
-	seconds = s1970 % SEC_PER_DAY;
-	days = s1970 / SEC_PER_DAY;
+	days = div_s64_rem(s1970, SEC_PER_DAY, &seconds);
 
 	ret = mc13xxx_reg_write(priv->mc13xxx, MC13XXX_RTCDAYA, days);
 	if (unlikely(ret))
@@ -268,7 +264,7 @@ static irqreturn_t mc13xxx_rtc_update_handler(int irq, void *dev)
 
 static const struct rtc_class_ops mc13xxx_rtc_ops = {
 	.read_time = mc13xxx_rtc_read_time,
-	.set_mmss = mc13xxx_rtc_set_mmss,
+	.set_mmss64 = mc13xxx_rtc_set_mmss,
 	.read_alarm = mc13xxx_rtc_read_alarm,
 	.set_alarm = mc13xxx_rtc_set_alarm,
 	.alarm_irq_enable = mc13xxx_rtc_alarm_irq_enable,
diff --git a/drivers/rtc/rtc-mrst.c b/drivers/rtc/rtc-mrst.c
index e2436d1..3a6fd3a 100644
--- a/drivers/rtc/rtc-mrst.c
+++ b/drivers/rtc/rtc-mrst.c
@@ -413,8 +413,8 @@ static void rtc_mrst_do_remove(struct device *dev)
 	mrst->dev = NULL;
 }
 
-#ifdef	CONFIG_PM
-static int mrst_suspend(struct device *dev, pm_message_t mesg)
+#ifdef CONFIG_PM_SLEEP
+static int mrst_suspend(struct device *dev)
 {
 	struct mrst_rtc	*mrst = dev_get_drvdata(dev);
 	unsigned char	tmp;
@@ -453,7 +453,7 @@ static int mrst_suspend(struct device *dev, pm_message_t mesg)
  */
 static inline int mrst_poweroff(struct device *dev)
 {
-	return mrst_suspend(dev, PMSG_HIBERNATE);
+	return mrst_suspend(dev);
 }
 
 static int mrst_resume(struct device *dev)
@@ -490,9 +490,11 @@ static int mrst_resume(struct device *dev)
 	return 0;
 }
 
+static SIMPLE_DEV_PM_OPS(mrst_pm_ops, mrst_suspend, mrst_resume);
+#define MRST_PM_OPS (&mrst_pm_ops)
+
 #else
-#define	mrst_suspend	NULL
-#define	mrst_resume	NULL
+#define MRST_PM_OPS NULL
 
 static inline int mrst_poweroff(struct device *dev)
 {
@@ -529,9 +531,8 @@ static struct platform_driver vrtc_mrst_platform_driver = {
 	.remove		= vrtc_mrst_platform_remove,
 	.shutdown	= vrtc_mrst_platform_shutdown,
 	.driver = {
-		.name		= (char *) driver_name,
-		.suspend	= mrst_suspend,
-		.resume		= mrst_resume,
+		.name	= driver_name,
+		.pm	= MRST_PM_OPS,
 	}
 };
 
diff --git a/drivers/rtc/rtc-mxc.c b/drivers/rtc/rtc-mxc.c
index 3c3f8d1..09d422b 100644
--- a/drivers/rtc/rtc-mxc.c
+++ b/drivers/rtc/rtc-mxc.c
@@ -106,7 +106,7 @@ static inline int is_imx1_rtc(struct rtc_plat_data *data)
  * This function is used to obtain the RTC time or the alarm value in
  * second.
  */
-static u32 get_alarm_or_time(struct device *dev, int time_alarm)
+static time64_t get_alarm_or_time(struct device *dev, int time_alarm)
 {
 	struct platform_device *pdev = to_platform_device(dev);
 	struct rtc_plat_data *pdata = platform_get_drvdata(pdev);
@@ -129,29 +129,28 @@ static u32 get_alarm_or_time(struct device *dev, int time_alarm)
 	hr = hr_min >> 8;
 	min = hr_min & 0xff;
 
-	return (((day * 24 + hr) * 60) + min) * 60 + sec;
+	return ((((time64_t)day * 24 + hr) * 60) + min) * 60 + sec;
 }
 
 /*
  * This function sets the RTC alarm value or the time value.
  */
-static void set_alarm_or_time(struct device *dev, int time_alarm, u32 time)
+static void set_alarm_or_time(struct device *dev, int time_alarm, time64_t time)
 {
-	u32 day, hr, min, sec, temp;
+	u32 tod, day, hr, min, sec, temp;
 	struct platform_device *pdev = to_platform_device(dev);
 	struct rtc_plat_data *pdata = platform_get_drvdata(pdev);
 	void __iomem *ioaddr = pdata->ioaddr;
 
-	day = time / 86400;
-	time -= day * 86400;
+	day = div_s64_rem(time, 86400, &tod);
 
 	/* time is within a day now */
-	hr = time / 3600;
-	time -= hr * 3600;
+	hr = tod / 3600;
+	tod -= hr * 3600;
 
 	/* time is within an hour now */
-	min = time / 60;
-	sec = time - min * 60;
+	min = tod / 60;
+	sec = tod - min * 60;
 
 	temp = (hr << 8) + min;
 
@@ -173,29 +172,18 @@ static void set_alarm_or_time(struct device *dev, int time_alarm, u32 time)
  * This function updates the RTC alarm registers and then clears all the
  * interrupt status bits.
  */
-static int rtc_update_alarm(struct device *dev, struct rtc_time *alrm)
+static void rtc_update_alarm(struct device *dev, struct rtc_time *alrm)
 {
-	struct rtc_time alarm_tm, now_tm;
-	unsigned long now, time;
+	time64_t time;
 	struct platform_device *pdev = to_platform_device(dev);
 	struct rtc_plat_data *pdata = platform_get_drvdata(pdev);
 	void __iomem *ioaddr = pdata->ioaddr;
 
-	now = get_alarm_or_time(dev, MXC_RTC_TIME);
-	rtc_time_to_tm(now, &now_tm);
-	alarm_tm.tm_year = now_tm.tm_year;
-	alarm_tm.tm_mon = now_tm.tm_mon;
-	alarm_tm.tm_mday = now_tm.tm_mday;
-	alarm_tm.tm_hour = alrm->tm_hour;
-	alarm_tm.tm_min = alrm->tm_min;
-	alarm_tm.tm_sec = alrm->tm_sec;
-	rtc_tm_to_time(&alarm_tm, &time);
+	time = rtc_tm_to_time64(alrm);
 
 	/* clear all the interrupt status bits */
 	writew(readw(ioaddr + RTC_RTCISR), ioaddr + RTC_RTCISR);
 	set_alarm_or_time(dev, MXC_RTC_ALARM, time);
-
-	return 0;
 }
 
 static void mxc_rtc_irq_enable(struct device *dev, unsigned int bit,
@@ -283,14 +271,14 @@ static int mxc_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled)
  */
 static int mxc_rtc_read_time(struct device *dev, struct rtc_time *tm)
 {
-	u32 val;
+	time64_t val;
 
 	/* Avoid roll-over from reading the different registers */
 	do {
 		val = get_alarm_or_time(dev, MXC_RTC_TIME);
 	} while (val != get_alarm_or_time(dev, MXC_RTC_TIME));
 
-	rtc_time_to_tm(val, tm);
+	rtc_time64_to_tm(val, tm);
 
 	return 0;
 }
@@ -298,7 +286,7 @@ static int mxc_rtc_read_time(struct device *dev, struct rtc_time *tm)
 /*
  * This function sets the internal RTC time based on tm in Gregorian date.
  */
-static int mxc_rtc_set_mmss(struct device *dev, unsigned long time)
+static int mxc_rtc_set_mmss(struct device *dev, time64_t time)
 {
 	struct platform_device *pdev = to_platform_device(dev);
 	struct rtc_plat_data *pdata = platform_get_drvdata(pdev);
@@ -309,9 +297,9 @@ static int mxc_rtc_set_mmss(struct device *dev, unsigned long time)
 	if (is_imx1_rtc(pdata)) {
 		struct rtc_time tm;
 
-		rtc_time_to_tm(time, &tm);
+		rtc_time64_to_tm(time, &tm);
 		tm.tm_year = 70;
-		rtc_tm_to_time(&tm, &time);
+		time = rtc_tm_to_time64(&tm);
 	}
 
 	/* Avoid roll-over from reading the different registers */
@@ -333,7 +321,7 @@ static int mxc_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm)
 	struct rtc_plat_data *pdata = platform_get_drvdata(pdev);
 	void __iomem *ioaddr = pdata->ioaddr;
 
-	rtc_time_to_tm(get_alarm_or_time(dev, MXC_RTC_ALARM), &alrm->time);
+	rtc_time64_to_tm(get_alarm_or_time(dev, MXC_RTC_ALARM), &alrm->time);
 	alrm->pending = ((readw(ioaddr + RTC_RTCISR) & RTC_ALM_BIT)) ? 1 : 0;
 
 	return 0;
@@ -346,11 +334,8 @@ static int mxc_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm)
 {
 	struct platform_device *pdev = to_platform_device(dev);
 	struct rtc_plat_data *pdata = platform_get_drvdata(pdev);
-	int ret;
 
-	ret = rtc_update_alarm(dev, &alrm->time);
-	if (ret)
-		return ret;
+	rtc_update_alarm(dev, &alrm->time);
 
 	memcpy(&pdata->g_rtc_alarm, &alrm->time, sizeof(struct rtc_time));
 	mxc_rtc_irq_enable(dev, RTC_ALM_BIT, alrm->enabled);
@@ -362,7 +347,7 @@ static int mxc_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm)
 static struct rtc_class_ops mxc_rtc_ops = {
 	.release		= mxc_rtc_release,
 	.read_time		= mxc_rtc_read_time,
-	.set_mmss		= mxc_rtc_set_mmss,
+	.set_mmss64		= mxc_rtc_set_mmss,
 	.read_alarm		= mxc_rtc_read_alarm,
 	.set_alarm		= mxc_rtc_set_alarm,
 	.alarm_irq_enable	= mxc_rtc_alarm_irq_enable,
diff --git a/drivers/rtc/rtc-s3c.c b/drivers/rtc/rtc-s3c.c
index 4241eea..f4cf685 100644
--- a/drivers/rtc/rtc-s3c.c
+++ b/drivers/rtc/rtc-s3c.c
@@ -849,6 +849,7 @@ static struct s3c_rtc_data const s3c2443_rtc_data = {
 
 static struct s3c_rtc_data const s3c6410_rtc_data = {
 	.max_user_freq		= 32768,
+	.needs_src_clk		= true,
 	.irq_handler		= s3c6410_rtc_irq,
 	.set_freq		= s3c6410_rtc_setfreq,
 	.enable_tick		= s3c6410_rtc_enable_tick,
diff --git a/drivers/rtc/rtc-test.c b/drivers/rtc/rtc-test.c
index 8f86fa9..3a2da4c 100644
--- a/drivers/rtc/rtc-test.c
+++ b/drivers/rtc/rtc-test.c
@@ -13,6 +13,10 @@
 #include <linux/rtc.h>
 #include <linux/platform_device.h>
 
+static int test_mmss64;
+module_param(test_mmss64, int, 0644);
+MODULE_PARM_DESC(test_mmss64, "Test struct rtc_class_ops.set_mmss64().");
+
 static struct platform_device *test0 = NULL, *test1 = NULL;
 
 static int test_rtc_read_alarm(struct device *dev,
@@ -30,7 +34,13 @@ static int test_rtc_set_alarm(struct device *dev,
 static int test_rtc_read_time(struct device *dev,
 	struct rtc_time *tm)
 {
-	rtc_time_to_tm(get_seconds(), tm);
+	rtc_time64_to_tm(ktime_get_real_seconds(), tm);
+	return 0;
+}
+
+static int test_rtc_set_mmss64(struct device *dev, time64_t secs)
+{
+	dev_info(dev, "%s, secs = %lld\n", __func__, (long long)secs);
 	return 0;
 }
 
@@ -55,7 +65,7 @@ static int test_rtc_alarm_irq_enable(struct device *dev, unsigned int enable)
 	return 0;
 }
 
-static const struct rtc_class_ops test_rtc_ops = {
+static struct rtc_class_ops test_rtc_ops = {
 	.proc = test_rtc_proc,
 	.read_time = test_rtc_read_time,
 	.read_alarm = test_rtc_read_alarm,
@@ -101,6 +111,11 @@ static int test_probe(struct platform_device *plat_dev)
 	int err;
 	struct rtc_device *rtc;
 
+	if (test_mmss64) {
+		test_rtc_ops.set_mmss64 = test_rtc_set_mmss64;
+		test_rtc_ops.set_mmss = NULL;
+	}
+
 	rtc = devm_rtc_device_register(&plat_dev->dev, "test",
 				&test_rtc_ops, THIS_MODULE);
 	if (IS_ERR(rtc)) {
diff --git a/drivers/rtc/systohc.c b/drivers/rtc/systohc.c
index eb71872..7728d5e 100644
--- a/drivers/rtc/systohc.c
+++ b/drivers/rtc/systohc.c
@@ -11,7 +11,7 @@
  * rtc_set_ntp_time - Save NTP synchronized time to the RTC
  * @now: Current time of day
  *
- * Replacement for the NTP platform function update_persistent_clock
+ * Replacement for the NTP platform function update_persistent_clock64
  * that stores time for later retrieval by rtc_hctosys.
  *
  * Returns 0 on successful RTC update, -ENODEV if a RTC update is not
@@ -35,7 +35,10 @@ int rtc_set_ntp_time(struct timespec64 now)
 	if (rtc) {
 		/* rtc_hctosys exclusively uses UTC, so we call set_time here,
 		 * not set_mmss. */
-		if (rtc->ops && (rtc->ops->set_time || rtc->ops->set_mmss))
+		if (rtc->ops &&
+		    (rtc->ops->set_time ||
+		     rtc->ops->set_mmss64 ||
+		     rtc->ops->set_mmss))
 			err = rtc_set_time(rtc, &tm);
 		rtc_class_close(rtc);
 	}
diff --git a/drivers/s390/block/dcssblk.c b/drivers/s390/block/dcssblk.c
index 96128cb..da21281 100644
--- a/drivers/s390/block/dcssblk.c
+++ b/drivers/s390/block/dcssblk.c
@@ -547,7 +547,7 @@ dcssblk_add_store(struct device *dev, struct device_attribute *attr, const char
 	 * parse input
 	 */
 	num_of_segments = 0;
-	for (i = 0; ((buf[i] != '\0') && (buf[i] != '\n') && i < count); i++) {
+	for (i = 0; (i < count && (buf[i] != '\0') && (buf[i] != '\n')); i++) {
 		for (j = i; (buf[j] != ':') &&
 			(buf[j] != '\0') &&
 			(buf[j] != '\n') &&
diff --git a/drivers/s390/block/scm_blk_cluster.c b/drivers/s390/block/scm_blk_cluster.c
index 09db452..7497ddde 100644
--- a/drivers/s390/block/scm_blk_cluster.c
+++ b/drivers/s390/block/scm_blk_cluster.c
@@ -92,7 +92,7 @@ bool scm_reserve_cluster(struct scm_request *scmrq)
 			add = 0;
 			continue;
 		}
-		for (pos = 0; pos <= iter->aob->request.msb_count; pos++) {
+		for (pos = 0; pos < iter->aob->request.msb_count; pos++) {
 			if (clusters_intersect(req, iter->request[pos]) &&
 			    (rq_data_dir(req) == WRITE ||
 			     rq_data_dir(iter->request[pos]) == WRITE)) {
diff --git a/drivers/scsi/be2iscsi/be_main.c b/drivers/scsi/be2iscsi/be_main.c
index a7cc618..923a2b5 100644
--- a/drivers/scsi/be2iscsi/be_main.c
+++ b/drivers/scsi/be2iscsi/be_main.c
@@ -5734,9 +5734,9 @@ free_port:
 hba_free:
 	if (phba->msix_enabled)
 		pci_disable_msix(phba->pcidev);
-	iscsi_host_remove(phba->shost);
 	pci_dev_put(phba->pcidev);
 	iscsi_host_free(phba->shost);
+	pci_set_drvdata(pcidev, NULL);
 disable_pci:
 	pci_disable_device(pcidev);
 	return ret;
diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c
index 9219953..d9afc51 100644
--- a/drivers/scsi/ipr.c
+++ b/drivers/scsi/ipr.c
@@ -6815,7 +6815,8 @@ static struct ata_port_operations ipr_sata_ops = {
 };
 
 static struct ata_port_info sata_port_info = {
-	.flags		= ATA_FLAG_SATA | ATA_FLAG_PIO_DMA,
+	.flags		= ATA_FLAG_SATA | ATA_FLAG_PIO_DMA |
+			  ATA_FLAG_SAS_HOST,
 	.pio_mask	= ATA_PIO4_ONLY,
 	.mwdma_mask	= ATA_MWDMA2,
 	.udma_mask	= ATA_UDMA6,
diff --git a/drivers/scsi/libsas/sas_ata.c b/drivers/scsi/libsas/sas_ata.c
index 932d9cc..9c706d8 100644
--- a/drivers/scsi/libsas/sas_ata.c
+++ b/drivers/scsi/libsas/sas_ata.c
@@ -547,7 +547,8 @@ static struct ata_port_operations sas_sata_ops = {
 };
 
 static struct ata_port_info sata_port_info = {
-	.flags = ATA_FLAG_SATA | ATA_FLAG_PIO_DMA | ATA_FLAG_NCQ,
+	.flags = ATA_FLAG_SATA | ATA_FLAG_PIO_DMA | ATA_FLAG_NCQ |
+		 ATA_FLAG_SAS_HOST,
 	.pio_mask = ATA_PIO4,
 	.mwdma_mask = ATA_MWDMA2,
 	.udma_mask = ATA_UDMA6,
diff --git a/drivers/scsi/libsas/sas_discover.c b/drivers/scsi/libsas/sas_discover.c
index 62b58d3..60de662 100644
--- a/drivers/scsi/libsas/sas_discover.c
+++ b/drivers/scsi/libsas/sas_discover.c
@@ -500,6 +500,7 @@ static void sas_revalidate_domain(struct work_struct *work)
 	struct sas_discovery_event *ev = to_sas_discovery_event(work);
 	struct asd_sas_port *port = ev->port;
 	struct sas_ha_struct *ha = port->ha;
+	struct domain_device *ddev = port->port_dev;
 
 	/* prevent revalidation from finding sata links in recovery */
 	mutex_lock(&ha->disco_mutex);
@@ -514,8 +515,9 @@ static void sas_revalidate_domain(struct work_struct *work)
 	SAS_DPRINTK("REVALIDATING DOMAIN on port %d, pid:%d\n", port->id,
 		    task_pid_nr(current));
 
-	if (port->port_dev)
-		res = sas_ex_revalidate_domain(port->port_dev);
+	if (ddev && (ddev->dev_type == SAS_FANOUT_EXPANDER_DEVICE ||
+		     ddev->dev_type == SAS_EDGE_EXPANDER_DEVICE))
+		res = sas_ex_revalidate_domain(ddev);
 
 	SAS_DPRINTK("done REVALIDATING DOMAIN on port %d, pid:%d, res 0x%x\n",
 		    port->id, task_pid_nr(current), res);
diff --git a/drivers/scsi/qla2xxx/tcm_qla2xxx.c b/drivers/scsi/qla2xxx/tcm_qla2xxx.c
index 99f43b7..ab4879e 100644
--- a/drivers/scsi/qla2xxx/tcm_qla2xxx.c
+++ b/drivers/scsi/qla2xxx/tcm_qla2xxx.c
@@ -1596,7 +1596,7 @@ static int tcm_qla2xxx_check_initiator_node_acl(
 	/*
 	 * Finally register the new FC Nexus with TCM
 	 */
-	__transport_register_session(se_nacl->se_tpg, se_nacl, se_sess, sess);
+	transport_register_session(se_nacl->se_tpg, se_nacl, se_sess, sess);
 
 	return 0;
 }
diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c
index 4cdaffc..c95a4e9 100644
--- a/drivers/scsi/scsi_error.c
+++ b/drivers/scsi/scsi_error.c
@@ -26,6 +26,7 @@
 #include <linux/blkdev.h>
 #include <linux/delay.h>
 #include <linux/jiffies.h>
+#include <asm/unaligned.h>
 
 #include <scsi/scsi.h>
 #include <scsi/scsi_cmnd.h>
@@ -2586,3 +2587,33 @@ void scsi_build_sense_buffer(int desc, u8 *buf, u8 key, u8 asc, u8 ascq)
 	}
 }
 EXPORT_SYMBOL(scsi_build_sense_buffer);
+
+/**
+ * scsi_set_sense_information - set the information field in a
+ *		formatted sense data buffer
+ * @buf:	Where to build sense data
+ * @info:	64-bit information value to be set
+ *
+ **/
+void scsi_set_sense_information(u8 *buf, u64 info)
+{
+	if ((buf[0] & 0x7f) == 0x72) {
+		u8 *ucp, len;
+
+		len = buf[7];
+		ucp = (char *)scsi_sense_desc_find(buf, len + 8, 0);
+		if (!ucp) {
+			buf[7] = len + 0xa;
+			ucp = buf + 8 + len;
+		}
+		ucp[0] = 0;
+		ucp[1] = 0xa;
+		ucp[2] = 0x80; /* Valid bit */
+		ucp[3] = 0;
+		put_unaligned_be64(info, &ucp[4]);
+	} else if ((buf[0] & 0x7f) == 0x70) {
+		buf[0] |= 0x80;
+		put_unaligned_be64(info, &buf[3]);
+	}
+}
+EXPORT_SYMBOL(scsi_set_sense_information);
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index 54d7a6c..b1a2631 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -1311,9 +1311,11 @@ scsi_prep_state_check(struct scsi_device *sdev, struct request *req)
 				    "rejecting I/O to dead device\n");
 			ret = BLKPREP_KILL;
 			break;
-		case SDEV_QUIESCE:
 		case SDEV_BLOCK:
 		case SDEV_CREATED_BLOCK:
+			ret = BLKPREP_DEFER;
+			break;
+		case SDEV_QUIESCE:
 			/*
 			 * If the devices is blocked we defer normal commands.
 			 */
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 5d60a86..2aa85e3 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -4225,22 +4225,15 @@ static struct scsi_host_template ufshcd_driver_template = {
 static int ufshcd_config_vreg_load(struct device *dev, struct ufs_vreg *vreg,
 				   int ua)
 {
-	int ret = 0;
-	struct regulator *reg = vreg->reg;
-	const char *name = vreg->name;
+	int ret;
 
-	BUG_ON(!vreg);
+	if (!vreg)
+		return 0;
 
-	ret = regulator_set_optimum_mode(reg, ua);
-	if (ret >= 0) {
-		/*
-		 * regulator_set_optimum_mode() returns new regulator
-		 * mode upon success.
-		 */
-		ret = 0;
-	} else {
-		dev_err(dev, "%s: %s set optimum mode(ua=%d) failed, err=%d\n",
-				__func__, name, ua, ret);
+	ret = regulator_set_load(vreg->reg, ua);
+	if (ret < 0) {
+		dev_err(dev, "%s: %s set load (ua=%d) failed, err=%d\n",
+				__func__, vreg->name, ua, ret);
 	}
 
 	return ret;
@@ -4249,18 +4242,12 @@ static int ufshcd_config_vreg_load(struct device *dev, struct ufs_vreg *vreg,
 static inline int ufshcd_config_vreg_lpm(struct ufs_hba *hba,
 					 struct ufs_vreg *vreg)
 {
-	if (!vreg)
-		return 0;
-
 	return ufshcd_config_vreg_load(hba->dev, vreg, UFS_VREG_LPM_LOAD_UA);
 }
 
 static inline int ufshcd_config_vreg_hpm(struct ufs_hba *hba,
 					 struct ufs_vreg *vreg)
 {
-	if (!vreg)
-		return 0;
-
 	return ufshcd_config_vreg_load(hba->dev, vreg, vreg->max_uA);
 }
 
diff --git a/drivers/sh/pm_runtime.c b/drivers/sh/pm_runtime.c
index f3ee439d..cd4c293 100644
--- a/drivers/sh/pm_runtime.c
+++ b/drivers/sh/pm_runtime.c
@@ -81,7 +81,9 @@ static int __init sh_pm_runtime_init(void)
 		if (!of_machine_is_compatible("renesas,emev2") &&
 		    !of_machine_is_compatible("renesas,r7s72100") &&
 		    !of_machine_is_compatible("renesas,r8a73a4") &&
+#ifndef CONFIG_PM_GENERIC_DOMAINS_OF
 		    !of_machine_is_compatible("renesas,r8a7740") &&
+#endif
 		    !of_machine_is_compatible("renesas,r8a7778") &&
 		    !of_machine_is_compatible("renesas,r8a7779") &&
 		    !of_machine_is_compatible("renesas,r8a7790") &&
diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig
index ab8dfbe..198f96b 100644
--- a/drivers/spi/Kconfig
+++ b/drivers/spi/Kconfig
@@ -159,10 +159,9 @@ config SPI_BUTTERFLY
 
 config SPI_CADENCE
 	tristate "Cadence SPI controller"
-	depends on ARM
 	help
 	  This selects the Cadence SPI controller master driver
-	  used by Xilinx Zynq.
+	  used by Xilinx Zynq and ZynqMP.
 
 config SPI_CLPS711X
 	tristate "CLPS711X host SPI controller"
@@ -632,7 +631,7 @@ config SPI_DW_PCI
 
 config SPI_DW_MID_DMA
 	bool "DMA support for DW SPI controller on Intel MID platform"
-	depends on SPI_DW_PCI && INTEL_MID_DMAC
+	depends on SPI_DW_PCI && DW_DMAC_PCI
 
 config SPI_DW_MMIO
 	tristate "Memory-mapped io interface driver for DW SPI core"
diff --git a/drivers/spi/spi-atmel.c b/drivers/spi/spi-atmel.c
index 9af7841..a2f40b1 100644
--- a/drivers/spi/spi-atmel.c
+++ b/drivers/spi/spi-atmel.c
@@ -180,11 +180,17 @@
 	  | SPI_BF(name, value))
 
 /* Register access macros */
+#ifdef CONFIG_AVR32
 #define spi_readl(port, reg) \
 	__raw_readl((port)->regs + SPI_##reg)
 #define spi_writel(port, reg, value) \
 	__raw_writel((value), (port)->regs + SPI_##reg)
-
+#else
+#define spi_readl(port, reg) \
+	readl_relaxed((port)->regs + SPI_##reg)
+#define spi_writel(port, reg, value) \
+	writel_relaxed((value), (port)->regs + SPI_##reg)
+#endif
 /* use PIO for small transfers, avoiding DMA setup/teardown overhead and
  * cache operations; better heuristics consider wordsize and bitrate.
  */
@@ -764,17 +770,17 @@ static void atmel_spi_pdc_next_xfer(struct spi_master *master,
 			(unsigned long long)xfer->rx_dma);
 	}
 
-	/* REVISIT: We're waiting for ENDRX before we start the next
+	/* REVISIT: We're waiting for RXBUFF before we start the next
 	 * transfer because we need to handle some difficult timing
-	 * issues otherwise. If we wait for ENDTX in one transfer and
-	 * then starts waiting for ENDRX in the next, it's difficult
-	 * to tell the difference between the ENDRX interrupt we're
-	 * actually waiting for and the ENDRX interrupt of the
+	 * issues otherwise. If we wait for TXBUFE in one transfer and
+	 * then starts waiting for RXBUFF in the next, it's difficult
+	 * to tell the difference between the RXBUFF interrupt we're
+	 * actually waiting for and the RXBUFF interrupt of the
 	 * previous transfer.
 	 *
 	 * It should be doable, though. Just not now...
 	 */
-	spi_writel(as, IER, SPI_BIT(ENDRX) | SPI_BIT(OVRES));
+	spi_writel(as, IER, SPI_BIT(RXBUFF) | SPI_BIT(OVRES));
 	spi_writel(as, PTCR, SPI_BIT(TXTEN) | SPI_BIT(RXTEN));
 }
 
diff --git a/drivers/spi/spi-bcm2835.c b/drivers/spi/spi-bcm2835.c
index 419a782..f63864a 100644
--- a/drivers/spi/spi-bcm2835.c
+++ b/drivers/spi/spi-bcm2835.c
@@ -3,6 +3,7 @@
  *
  * Copyright (C) 2012 Chris Boot
  * Copyright (C) 2013 Stephen Warren
+ * Copyright (C) 2015 Martin Sperl
  *
  * This driver is inspired by:
  * spi-ath79.c, Copyright (C) 2009-2011 Gabor Juhos <juhosg@openwrt.org>
@@ -29,6 +30,7 @@
 #include <linux/module.h>
 #include <linux/of.h>
 #include <linux/of_irq.h>
+#include <linux/of_gpio.h>
 #include <linux/of_device.h>
 #include <linux/spi/spi.h>
 
@@ -66,8 +68,10 @@
 #define BCM2835_SPI_CS_CS_10		0x00000002
 #define BCM2835_SPI_CS_CS_01		0x00000001
 
-#define BCM2835_SPI_TIMEOUT_MS	30000
-#define BCM2835_SPI_MODE_BITS	(SPI_CPOL | SPI_CPHA | SPI_CS_HIGH | SPI_NO_CS)
+#define BCM2835_SPI_POLLING_LIMIT_US	30
+#define BCM2835_SPI_TIMEOUT_MS		30000
+#define BCM2835_SPI_MODE_BITS	(SPI_CPOL | SPI_CPHA | SPI_CS_HIGH \
+				| SPI_NO_CS | SPI_3WIRE)
 
 #define DRV_NAME	"spi-bcm2835"
 
@@ -75,10 +79,10 @@ struct bcm2835_spi {
 	void __iomem *regs;
 	struct clk *clk;
 	int irq;
-	struct completion done;
 	const u8 *tx_buf;
 	u8 *rx_buf;
-	int len;
+	int tx_len;
+	int rx_len;
 };
 
 static inline u32 bcm2835_rd(struct bcm2835_spi *bs, unsigned reg)
@@ -91,205 +95,315 @@ static inline void bcm2835_wr(struct bcm2835_spi *bs, unsigned reg, u32 val)
 	writel(val, bs->regs + reg);
 }
 
-static inline void bcm2835_rd_fifo(struct bcm2835_spi *bs, int len)
+static inline void bcm2835_rd_fifo(struct bcm2835_spi *bs)
 {
 	u8 byte;
 
-	while (len--) {
+	while ((bs->rx_len) &&
+	       (bcm2835_rd(bs, BCM2835_SPI_CS) & BCM2835_SPI_CS_RXD)) {
 		byte = bcm2835_rd(bs, BCM2835_SPI_FIFO);
 		if (bs->rx_buf)
 			*bs->rx_buf++ = byte;
+		bs->rx_len--;
 	}
 }
 
-static inline void bcm2835_wr_fifo(struct bcm2835_spi *bs, int len)
+static inline void bcm2835_wr_fifo(struct bcm2835_spi *bs)
 {
 	u8 byte;
 
-	if (len > bs->len)
-		len = bs->len;
-
-	while (len--) {
+	while ((bs->tx_len) &&
+	       (bcm2835_rd(bs, BCM2835_SPI_CS) & BCM2835_SPI_CS_TXD)) {
 		byte = bs->tx_buf ? *bs->tx_buf++ : 0;
 		bcm2835_wr(bs, BCM2835_SPI_FIFO, byte);
-		bs->len--;
+		bs->tx_len--;
 	}
 }
 
+static void bcm2835_spi_reset_hw(struct spi_master *master)
+{
+	struct bcm2835_spi *bs = spi_master_get_devdata(master);
+	u32 cs = bcm2835_rd(bs, BCM2835_SPI_CS);
+
+	/* Disable SPI interrupts and transfer */
+	cs &= ~(BCM2835_SPI_CS_INTR |
+		BCM2835_SPI_CS_INTD |
+		BCM2835_SPI_CS_TA);
+	/* and reset RX/TX FIFOS */
+	cs |= BCM2835_SPI_CS_CLEAR_RX | BCM2835_SPI_CS_CLEAR_TX;
+
+	/* and reset the SPI_HW */
+	bcm2835_wr(bs, BCM2835_SPI_CS, cs);
+}
+
 static irqreturn_t bcm2835_spi_interrupt(int irq, void *dev_id)
 {
 	struct spi_master *master = dev_id;
 	struct bcm2835_spi *bs = spi_master_get_devdata(master);
-	u32 cs = bcm2835_rd(bs, BCM2835_SPI_CS);
 
-	/*
-	 * RXR - RX needs Reading. This means 12 (or more) bytes have been
-	 * transmitted and hence 12 (or more) bytes have been received.
-	 *
-	 * The FIFO is 16-bytes deep. We check for this interrupt to keep the
-	 * FIFO full; we have a 4-byte-time buffer for IRQ latency. We check
-	 * this before DONE (TX empty) just in case we delayed processing this
-	 * interrupt for some reason.
-	 *
-	 * We only check for this case if we have more bytes to TX; at the end
-	 * of the transfer, we ignore this pipelining optimization, and let
-	 * bcm2835_spi_finish_transfer() drain the RX FIFO.
+	/* Read as many bytes as possible from FIFO */
+	bcm2835_rd_fifo(bs);
+	/* Write as many bytes as possible to FIFO */
+	bcm2835_wr_fifo(bs);
+
+	/* based on flags decide if we can finish the transfer */
+	if (bcm2835_rd(bs, BCM2835_SPI_CS) & BCM2835_SPI_CS_DONE) {
+		/* Transfer complete - reset SPI HW */
+		bcm2835_spi_reset_hw(master);
+		/* wake up the framework */
+		complete(&master->xfer_completion);
+	}
+
+	return IRQ_HANDLED;
+}
+
+static int bcm2835_spi_transfer_one_poll(struct spi_master *master,
+					 struct spi_device *spi,
+					 struct spi_transfer *tfr,
+					 u32 cs,
+					 unsigned long xfer_time_us)
+{
+	struct bcm2835_spi *bs = spi_master_get_devdata(master);
+	unsigned long timeout = jiffies +
+		max(4 * xfer_time_us * HZ / 1000000, 2uL);
+
+	/* enable HW block without interrupts */
+	bcm2835_wr(bs, BCM2835_SPI_CS, cs | BCM2835_SPI_CS_TA);
+
+	/* set timeout to 4x the expected time, or 2 jiffies */
+	/* loop until finished the transfer */
+	while (bs->rx_len) {
+		/* read from fifo as much as possible */
+		bcm2835_rd_fifo(bs);
+		/* fill in tx fifo as much as possible */
+		bcm2835_wr_fifo(bs);
+		/* if we still expect some data after the read,
+		 * check for a possible timeout
+		 */
+		if (bs->rx_len && time_after(jiffies, timeout)) {
+			/* Transfer complete - reset SPI HW */
+			bcm2835_spi_reset_hw(master);
+			/* and return timeout */
+			return -ETIMEDOUT;
+		}
+	}
+
+	/* Transfer complete - reset SPI HW */
+	bcm2835_spi_reset_hw(master);
+	/* and return without waiting for completion */
+	return 0;
+}
+
+static int bcm2835_spi_transfer_one_irq(struct spi_master *master,
+					struct spi_device *spi,
+					struct spi_transfer *tfr,
+					u32 cs)
+{
+	struct bcm2835_spi *bs = spi_master_get_devdata(master);
+
+	/* fill in fifo if we have gpio-cs
+	 * note that there have been rare events where the native-CS
+	 * flapped for <1us which may change the behaviour
+	 * with gpio-cs this does not happen, so it is implemented
+	 * only for this case
 	 */
-	if (bs->len && (cs & BCM2835_SPI_CS_RXR)) {
-		/* Read 12 bytes of data */
-		bcm2835_rd_fifo(bs, 12);
-
-		/* Write up to 12 bytes */
-		bcm2835_wr_fifo(bs, 12);
-
-		/*
-		 * We must have written something to the TX FIFO due to the
-		 * bs->len check above, so cannot be DONE. Hence, return
-		 * early. Note that DONE could also be set if we serviced an
-		 * RXR interrupt really late.
+	if (gpio_is_valid(spi->cs_gpio)) {
+		/* enable HW block, but without interrupts enabled
+		 * this would triggern an immediate interrupt
 		 */
-		return IRQ_HANDLED;
+		bcm2835_wr(bs, BCM2835_SPI_CS,
+			   cs | BCM2835_SPI_CS_TA);
+		/* fill in tx fifo as much as possible */
+		bcm2835_wr_fifo(bs);
 	}
 
 	/*
-	 * DONE - TX empty. This occurs when we first enable the transfer
-	 * since we do not pre-fill the TX FIFO. At any other time, given that
-	 * we refill the TX FIFO above based on RXR, and hence ignore DONE if
-	 * RXR is set, DONE really does mean end-of-transfer.
+	 * Enable the HW block. This will immediately trigger a DONE (TX
+	 * empty) interrupt, upon which we will fill the TX FIFO with the
+	 * first TX bytes. Pre-filling the TX FIFO here to avoid the
+	 * interrupt doesn't work:-(
 	 */
-	if (cs & BCM2835_SPI_CS_DONE) {
-		if (bs->len) { /* First interrupt in a transfer */
-			bcm2835_wr_fifo(bs, 16);
-		} else { /* Transfer complete */
-			/* Disable SPI interrupts */
-			cs &= ~(BCM2835_SPI_CS_INTR | BCM2835_SPI_CS_INTD);
-			bcm2835_wr(bs, BCM2835_SPI_CS, cs);
-
-			/*
-			 * Wake up bcm2835_spi_transfer_one(), which will call
-			 * bcm2835_spi_finish_transfer(), to drain the RX FIFO.
-			 */
-			complete(&bs->done);
-		}
-
-		return IRQ_HANDLED;
-	}
+	cs |= BCM2835_SPI_CS_INTR | BCM2835_SPI_CS_INTD | BCM2835_SPI_CS_TA;
+	bcm2835_wr(bs, BCM2835_SPI_CS, cs);
 
-	return IRQ_NONE;
+	/* signal that we need to wait for completion */
+	return 1;
 }
 
-static int bcm2835_spi_start_transfer(struct spi_device *spi,
-		struct spi_transfer *tfr)
+static int bcm2835_spi_transfer_one(struct spi_master *master,
+				    struct spi_device *spi,
+				    struct spi_transfer *tfr)
 {
-	struct bcm2835_spi *bs = spi_master_get_devdata(spi->master);
+	struct bcm2835_spi *bs = spi_master_get_devdata(master);
 	unsigned long spi_hz, clk_hz, cdiv;
-	u32 cs = BCM2835_SPI_CS_INTR | BCM2835_SPI_CS_INTD | BCM2835_SPI_CS_TA;
+	unsigned long spi_used_hz, xfer_time_us;
+	u32 cs = bcm2835_rd(bs, BCM2835_SPI_CS);
 
+	/* set clock */
 	spi_hz = tfr->speed_hz;
 	clk_hz = clk_get_rate(bs->clk);
 
 	if (spi_hz >= clk_hz / 2) {
 		cdiv = 2; /* clk_hz/2 is the fastest we can go */
 	} else if (spi_hz) {
-		/* CDIV must be a power of two */
-		cdiv = roundup_pow_of_two(DIV_ROUND_UP(clk_hz, spi_hz));
+		/* CDIV must be a multiple of two */
+		cdiv = DIV_ROUND_UP(clk_hz, spi_hz);
+		cdiv += (cdiv % 2);
 
 		if (cdiv >= 65536)
 			cdiv = 0; /* 0 is the slowest we can go */
-	} else
+	} else {
 		cdiv = 0; /* 0 is the slowest we can go */
+	}
+	spi_used_hz = cdiv ? (clk_hz / cdiv) : (clk_hz / 65536);
+	bcm2835_wr(bs, BCM2835_SPI_CLK, cdiv);
 
+	/* handle all the modes */
+	if ((spi->mode & SPI_3WIRE) && (tfr->rx_buf))
+		cs |= BCM2835_SPI_CS_REN;
 	if (spi->mode & SPI_CPOL)
 		cs |= BCM2835_SPI_CS_CPOL;
 	if (spi->mode & SPI_CPHA)
 		cs |= BCM2835_SPI_CS_CPHA;
 
-	if (!(spi->mode & SPI_NO_CS)) {
-		if (spi->mode & SPI_CS_HIGH) {
-			cs |= BCM2835_SPI_CS_CSPOL;
-			cs |= BCM2835_SPI_CS_CSPOL0 << spi->chip_select;
-		}
-
-		cs |= spi->chip_select;
-	}
+	/* for gpio_cs set dummy CS so that no HW-CS get changed
+	 * we can not run this in bcm2835_spi_set_cs, as it does
+	 * not get called for cs_gpio cases, so we need to do it here
+	 */
+	if (gpio_is_valid(spi->cs_gpio) || (spi->mode & SPI_NO_CS))
+		cs |= BCM2835_SPI_CS_CS_10 | BCM2835_SPI_CS_CS_01;
 
-	reinit_completion(&bs->done);
+	/* set transmit buffers and length */
 	bs->tx_buf = tfr->tx_buf;
 	bs->rx_buf = tfr->rx_buf;
-	bs->len = tfr->len;
+	bs->tx_len = tfr->len;
+	bs->rx_len = tfr->len;
 
-	bcm2835_wr(bs, BCM2835_SPI_CLK, cdiv);
-	/*
-	 * Enable the HW block. This will immediately trigger a DONE (TX
-	 * empty) interrupt, upon which we will fill the TX FIFO with the
-	 * first TX bytes. Pre-filling the TX FIFO here to avoid the
-	 * interrupt doesn't work:-(
-	 */
-	bcm2835_wr(bs, BCM2835_SPI_CS, cs);
+	/* calculate the estimated time in us the transfer runs */
+	xfer_time_us = tfr->len
+		* 9 /* clocks/byte - SPI-HW waits 1 clock after each byte */
+		* 1000000 / spi_used_hz;
 
-	return 0;
+	/* for short requests run polling*/
+	if (xfer_time_us <= BCM2835_SPI_POLLING_LIMIT_US)
+		return bcm2835_spi_transfer_one_poll(master, spi, tfr,
+						     cs, xfer_time_us);
+
+	return bcm2835_spi_transfer_one_irq(master, spi, tfr, cs);
 }
 
-static int bcm2835_spi_finish_transfer(struct spi_device *spi,
-		struct spi_transfer *tfr, bool cs_change)
+static void bcm2835_spi_handle_err(struct spi_master *master,
+				   struct spi_message *msg)
 {
-	struct bcm2835_spi *bs = spi_master_get_devdata(spi->master);
-	u32 cs = bcm2835_rd(bs, BCM2835_SPI_CS);
+	bcm2835_spi_reset_hw(master);
+}
+
+static void bcm2835_spi_set_cs(struct spi_device *spi, bool gpio_level)
+{
+	/*
+	 * we can assume that we are "native" as per spi_set_cs
+	 *   calling us ONLY when cs_gpio is not set
+	 * we can also assume that we are CS < 3 as per bcm2835_spi_setup
+	 *   we would not get called because of error handling there.
+	 * the level passed is the electrical level not enabled/disabled
+	 *   so it has to get translated back to enable/disable
+	 *   see spi_set_cs in spi.c for the implementation
+	 */
 
-	/* Drain RX FIFO */
-	while (cs & BCM2835_SPI_CS_RXD) {
-		bcm2835_rd_fifo(bs, 1);
-		cs = bcm2835_rd(bs, BCM2835_SPI_CS);
+	struct spi_master *master = spi->master;
+	struct bcm2835_spi *bs = spi_master_get_devdata(master);
+	u32 cs = bcm2835_rd(bs, BCM2835_SPI_CS);
+	bool enable;
+
+	/* calculate the enable flag from the passed gpio_level */
+	enable = (spi->mode & SPI_CS_HIGH) ? gpio_level : !gpio_level;
+
+	/* set flags for "reverse" polarity in the registers */
+	if (spi->mode & SPI_CS_HIGH) {
+		/* set the correct CS-bits */
+		cs |= BCM2835_SPI_CS_CSPOL;
+		cs |= BCM2835_SPI_CS_CSPOL0 << spi->chip_select;
+	} else {
+		/* clean the CS-bits */
+		cs &= ~BCM2835_SPI_CS_CSPOL;
+		cs &= ~(BCM2835_SPI_CS_CSPOL0 << spi->chip_select);
 	}
 
-	if (tfr->delay_usecs)
-		udelay(tfr->delay_usecs);
+	/* select the correct chip_select depending on disabled/enabled */
+	if (enable) {
+		/* set cs correctly */
+		if (spi->mode & SPI_NO_CS) {
+			/* use the "undefined" chip-select */
+			cs |= BCM2835_SPI_CS_CS_10 | BCM2835_SPI_CS_CS_01;
+		} else {
+			/* set the chip select */
+			cs &= ~(BCM2835_SPI_CS_CS_10 | BCM2835_SPI_CS_CS_01);
+			cs |= spi->chip_select;
+		}
+	} else {
+		/* disable CSPOL which puts HW-CS into deselected state */
+		cs &= ~BCM2835_SPI_CS_CSPOL;
+		/* use the "undefined" chip-select as precaution */
+		cs |= BCM2835_SPI_CS_CS_10 | BCM2835_SPI_CS_CS_01;
+	}
 
-	if (cs_change)
-		/* Clear TA flag */
-		bcm2835_wr(bs, BCM2835_SPI_CS, cs & ~BCM2835_SPI_CS_TA);
+	/* finally set the calculated flags in SPI_CS */
+	bcm2835_wr(bs, BCM2835_SPI_CS, cs);
+}
 
-	return 0;
+static int chip_match_name(struct gpio_chip *chip, void *data)
+{
+	return !strcmp(chip->label, data);
 }
 
-static int bcm2835_spi_transfer_one(struct spi_master *master,
-		struct spi_message *mesg)
+static int bcm2835_spi_setup(struct spi_device *spi)
 {
-	struct bcm2835_spi *bs = spi_master_get_devdata(master);
-	struct spi_transfer *tfr;
-	struct spi_device *spi = mesg->spi;
-	int err = 0;
-	unsigned int timeout;
-	bool cs_change;
-
-	list_for_each_entry(tfr, &mesg->transfers, transfer_list) {
-		err = bcm2835_spi_start_transfer(spi, tfr);
-		if (err)
-			goto out;
-
-		timeout = wait_for_completion_timeout(&bs->done,
-				msecs_to_jiffies(BCM2835_SPI_TIMEOUT_MS));
-		if (!timeout) {
-			err = -ETIMEDOUT;
-			goto out;
-		}
+	int err;
+	struct gpio_chip *chip;
+	/*
+	 * sanity checking the native-chipselects
+	 */
+	if (spi->mode & SPI_NO_CS)
+		return 0;
+	if (gpio_is_valid(spi->cs_gpio))
+		return 0;
+	if (spi->chip_select > 1) {
+		/* error in the case of native CS requested with CS > 1
+		 * officially there is a CS2, but it is not documented
+		 * which GPIO is connected with that...
+		 */
+		dev_err(&spi->dev,
+			"setup: only two native chip-selects are supported\n");
+		return -EINVAL;
+	}
+	/* now translate native cs to GPIO */
 
-		cs_change = tfr->cs_change ||
-			list_is_last(&tfr->transfer_list, &mesg->transfers);
+	/* get the gpio chip for the base */
+	chip = gpiochip_find("pinctrl-bcm2835", chip_match_name);
+	if (!chip)
+		return 0;
 
-		err = bcm2835_spi_finish_transfer(spi, tfr, cs_change);
-		if (err)
-			goto out;
+	/* and calculate the real CS */
+	spi->cs_gpio = chip->base + 8 - spi->chip_select;
 
-		mesg->actual_length += (tfr->len - bs->len);
-	}
+	/* and set up the "mode" and level */
+	dev_info(&spi->dev, "setting up native-CS%i as GPIO %i\n",
+		 spi->chip_select, spi->cs_gpio);
 
-out:
-	/* Clear FIFOs, and disable the HW block */
-	bcm2835_wr(bs, BCM2835_SPI_CS,
-		   BCM2835_SPI_CS_CLEAR_RX | BCM2835_SPI_CS_CLEAR_TX);
-	mesg->status = err;
-	spi_finalize_current_message(master);
+	/* set up GPIO as output and pull to the correct level */
+	err = gpio_direction_output(spi->cs_gpio,
+				    (spi->mode & SPI_CS_HIGH) ? 0 : 1);
+	if (err) {
+		dev_err(&spi->dev,
+			"could not set CS%i gpio %i as output: %i",
+			spi->chip_select, spi->cs_gpio, err);
+		return err;
+	}
+	/* the implementation of pinctrl-bcm2835 currently does not
+	 * set the GPIO value when using gpio_direction_output
+	 * so we are setting it here explicitly
+	 */
+	gpio_set_value(spi->cs_gpio, (spi->mode & SPI_CS_HIGH) ? 0 : 1);
 
 	return 0;
 }
@@ -312,13 +426,14 @@ static int bcm2835_spi_probe(struct platform_device *pdev)
 	master->mode_bits = BCM2835_SPI_MODE_BITS;
 	master->bits_per_word_mask = SPI_BPW_MASK(8);
 	master->num_chipselect = 3;
-	master->transfer_one_message = bcm2835_spi_transfer_one;
+	master->setup = bcm2835_spi_setup;
+	master->set_cs = bcm2835_spi_set_cs;
+	master->transfer_one = bcm2835_spi_transfer_one;
+	master->handle_err = bcm2835_spi_handle_err;
 	master->dev.of_node = pdev->dev.of_node;
 
 	bs = spi_master_get_devdata(master);
 
-	init_completion(&bs->done);
-
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	bs->regs = devm_ioremap_resource(&pdev->dev, res);
 	if (IS_ERR(bs->regs)) {
@@ -343,13 +458,13 @@ static int bcm2835_spi_probe(struct platform_device *pdev)
 	clk_prepare_enable(bs->clk);
 
 	err = devm_request_irq(&pdev->dev, bs->irq, bcm2835_spi_interrupt, 0,
-				dev_name(&pdev->dev), master);
+			       dev_name(&pdev->dev), master);
 	if (err) {
 		dev_err(&pdev->dev, "could not request IRQ: %d\n", err);
 		goto out_clk_disable;
 	}
 
-	/* initialise the hardware */
+	/* initialise the hardware with the default polarities */
 	bcm2835_wr(bs, BCM2835_SPI_CS,
 		   BCM2835_SPI_CS_CLEAR_RX | BCM2835_SPI_CS_CLEAR_TX);
 
diff --git a/drivers/spi/spi-bcm53xx.c b/drivers/spi/spi-bcm53xx.c
index 3fb91c8..1520554 100644
--- a/drivers/spi/spi-bcm53xx.c
+++ b/drivers/spi/spi-bcm53xx.c
@@ -44,7 +44,7 @@ static int bcm53xxspi_wait(struct bcm53xxspi *b53spi, unsigned int timeout_ms)
 	u32 tmp;
 
 	/* SPE bit has to be 0 before we read MSPI STATUS */
-	deadline = jiffies + BCM53XXSPI_SPE_TIMEOUT_MS * HZ / 1000;
+	deadline = jiffies + msecs_to_jiffies(BCM53XXSPI_SPE_TIMEOUT_MS);
 	do {
 		tmp = bcm53xxspi_read(b53spi, B53SPI_MSPI_SPCR2);
 		if (!(tmp & B53SPI_MSPI_SPCR2_SPE))
@@ -56,7 +56,7 @@ static int bcm53xxspi_wait(struct bcm53xxspi *b53spi, unsigned int timeout_ms)
 		goto spi_timeout;
 
 	/* Check status */
-	deadline = jiffies + timeout_ms * HZ / 1000;
+	deadline = jiffies + msecs_to_jiffies(timeout_ms);
 	do {
 		tmp = bcm53xxspi_read(b53spi, B53SPI_MSPI_MSPI_STATUS);
 		if (tmp & B53SPI_MSPI_MSPI_STATUS_SPIF) {
diff --git a/drivers/spi/spi-bfin5xx.c b/drivers/spi/spi-bfin5xx.c
index 3707993..a3d65b4 100644
--- a/drivers/spi/spi-bfin5xx.c
+++ b/drivers/spi/spi-bfin5xx.c
@@ -559,7 +559,7 @@ static void bfin_spi_pump_transfers(unsigned long data)
 	struct spi_transfer *previous = NULL;
 	struct bfin_spi_slave_data *chip = NULL;
 	unsigned int bits_per_word;
-	u16 cr, cr_width, dma_width, dma_config;
+	u16 cr, cr_width = 0, dma_width, dma_config;
 	u32 tranf_success = 1;
 	u8 full_duplex = 0;
 
@@ -648,7 +648,6 @@ static void bfin_spi_pump_transfers(unsigned long data)
 	} else if (bits_per_word == 8) {
 		drv_data->n_bytes = bits_per_word/8;
 		drv_data->len = transfer->len;
-		cr_width = 0;
 		drv_data->ops = &bfin_bfin_spi_transfer_ops_u8;
 	}
 	cr = bfin_read(&drv_data->regs->ctl) & ~(BIT_CTL_TIMOD | BIT_CTL_WORDSIZE);
diff --git a/drivers/spi/spi-bitbang-txrx.h b/drivers/spi/spi-bitbang-txrx.h
index c616e41..06b34e5 100644
--- a/drivers/spi/spi-bitbang-txrx.h
+++ b/drivers/spi/spi-bitbang-txrx.h
@@ -49,12 +49,17 @@ bitbang_txrx_be_cpha0(struct spi_device *spi,
 {
 	/* if (cpol == 0) this is SPI_MODE_0; else this is SPI_MODE_2 */
 
+	bool oldbit = !(word & 1);
 	/* clock starts at inactive polarity */
 	for (word <<= (32 - bits); likely(bits); bits--) {
 
 		/* setup MSB (to slave) on trailing edge */
-		if ((flags & SPI_MASTER_NO_TX) == 0)
-			setmosi(spi, word & (1 << 31));
+		if ((flags & SPI_MASTER_NO_TX) == 0) {
+			if ((word & (1 << 31)) != oldbit) {
+				setmosi(spi, word & (1 << 31));
+				oldbit = word & (1 << 31);
+			}
+		}
 		spidelay(nsecs);	/* T(setup) */
 
 		setsck(spi, !cpol);
@@ -76,13 +81,18 @@ bitbang_txrx_be_cpha1(struct spi_device *spi,
 {
 	/* if (cpol == 0) this is SPI_MODE_1; else this is SPI_MODE_3 */
 
+	bool oldbit = !(word & (1 << 31));
 	/* clock starts at inactive polarity */
 	for (word <<= (32 - bits); likely(bits); bits--) {
 
 		/* setup MSB (to slave) on leading edge */
 		setsck(spi, !cpol);
-		if ((flags & SPI_MASTER_NO_TX) == 0)
-			setmosi(spi, word & (1 << 31));
+		if ((flags & SPI_MASTER_NO_TX) == 0) {
+			if ((word & (1 << 31)) != oldbit) {
+				setmosi(spi, word & (1 << 31));
+				oldbit = word & (1 << 31);
+			}
+		}
 		spidelay(nsecs); /* T(setup) */
 
 		setsck(spi, cpol);
diff --git a/drivers/spi/spi-dw-mid.c b/drivers/spi/spi-dw-mid.c
index a0197fd..bb1052e 100644
--- a/drivers/spi/spi-dw-mid.c
+++ b/drivers/spi/spi-dw-mid.c
@@ -23,29 +23,31 @@
 #include "spi-dw.h"
 
 #ifdef CONFIG_SPI_DW_MID_DMA
-#include <linux/intel_mid_dma.h>
 #include <linux/pci.h>
+#include <linux/platform_data/dma-dw.h>
 
 #define RX_BUSY		0
 #define TX_BUSY		1
 
-struct mid_dma {
-	struct intel_mid_dma_slave	dmas_tx;
-	struct intel_mid_dma_slave	dmas_rx;
-};
+static struct dw_dma_slave mid_dma_tx = { .dst_id = 1 };
+static struct dw_dma_slave mid_dma_rx = { .src_id = 0 };
 
 static bool mid_spi_dma_chan_filter(struct dma_chan *chan, void *param)
 {
-	struct dw_spi *dws = param;
+	struct dw_dma_slave *s = param;
+
+	if (s->dma_dev != chan->device->dev)
+		return false;
 
-	return dws->dma_dev == chan->device->dev;
+	chan->private = s;
+	return true;
 }
 
 static int mid_spi_dma_init(struct dw_spi *dws)
 {
-	struct mid_dma *dw_dma = dws->dma_priv;
 	struct pci_dev *dma_dev;
-	struct intel_mid_dma_slave *rxs, *txs;
+	struct dw_dma_slave *tx = dws->dma_tx;
+	struct dw_dma_slave *rx = dws->dma_rx;
 	dma_cap_mask_t mask;
 
 	/*
@@ -56,28 +58,22 @@ static int mid_spi_dma_init(struct dw_spi *dws)
 	if (!dma_dev)
 		return -ENODEV;
 
-	dws->dma_dev = &dma_dev->dev;
-
 	dma_cap_zero(mask);
 	dma_cap_set(DMA_SLAVE, mask);
 
 	/* 1. Init rx channel */
-	dws->rxchan = dma_request_channel(mask, mid_spi_dma_chan_filter, dws);
+	rx->dma_dev = &dma_dev->dev;
+	dws->rxchan = dma_request_channel(mask, mid_spi_dma_chan_filter, rx);
 	if (!dws->rxchan)
 		goto err_exit;
-	rxs = &dw_dma->dmas_rx;
-	rxs->hs_mode = LNW_DMA_HW_HS;
-	rxs->cfg_mode = LNW_DMA_PER_TO_MEM;
-	dws->rxchan->private = rxs;
+	dws->master->dma_rx = dws->rxchan;
 
 	/* 2. Init tx channel */
-	dws->txchan = dma_request_channel(mask, mid_spi_dma_chan_filter, dws);
+	tx->dma_dev = &dma_dev->dev;
+	dws->txchan = dma_request_channel(mask, mid_spi_dma_chan_filter, tx);
 	if (!dws->txchan)
 		goto free_rxchan;
-	txs = &dw_dma->dmas_tx;
-	txs->hs_mode = LNW_DMA_HW_HS;
-	txs->cfg_mode = LNW_DMA_MEM_TO_PER;
-	dws->txchan->private = txs;
+	dws->master->dma_tx = dws->txchan;
 
 	dws->dma_inited = 1;
 	return 0;
@@ -100,6 +96,42 @@ static void mid_spi_dma_exit(struct dw_spi *dws)
 	dma_release_channel(dws->rxchan);
 }
 
+static irqreturn_t dma_transfer(struct dw_spi *dws)
+{
+	u16 irq_status = dw_readl(dws, DW_SPI_ISR);
+
+	if (!irq_status)
+		return IRQ_NONE;
+
+	dw_readl(dws, DW_SPI_ICR);
+	spi_reset_chip(dws);
+
+	dev_err(&dws->master->dev, "%s: FIFO overrun/underrun\n", __func__);
+	dws->master->cur_msg->status = -EIO;
+	spi_finalize_current_transfer(dws->master);
+	return IRQ_HANDLED;
+}
+
+static bool mid_spi_can_dma(struct spi_master *master, struct spi_device *spi,
+		struct spi_transfer *xfer)
+{
+	struct dw_spi *dws = spi_master_get_devdata(master);
+
+	if (!dws->dma_inited)
+		return false;
+
+	return xfer->len > dws->fifo_len;
+}
+
+static enum dma_slave_buswidth convert_dma_width(u32 dma_width) {
+	if (dma_width == 1)
+		return DMA_SLAVE_BUSWIDTH_1_BYTE;
+	else if (dma_width == 2)
+		return DMA_SLAVE_BUSWIDTH_2_BYTES;
+
+	return DMA_SLAVE_BUSWIDTH_UNDEFINED;
+}
+
 /*
  * dws->dma_chan_busy is set before the dma transfer starts, callback for tx
  * channel will clear a corresponding bit.
@@ -108,37 +140,38 @@ static void dw_spi_dma_tx_done(void *arg)
 {
 	struct dw_spi *dws = arg;
 
-	if (test_and_clear_bit(TX_BUSY, &dws->dma_chan_busy) & BIT(RX_BUSY))
+	clear_bit(TX_BUSY, &dws->dma_chan_busy);
+	if (test_bit(RX_BUSY, &dws->dma_chan_busy))
 		return;
-	dw_spi_xfer_done(dws);
+	spi_finalize_current_transfer(dws->master);
 }
 
-static struct dma_async_tx_descriptor *dw_spi_dma_prepare_tx(struct dw_spi *dws)
+static struct dma_async_tx_descriptor *dw_spi_dma_prepare_tx(struct dw_spi *dws,
+		struct spi_transfer *xfer)
 {
 	struct dma_slave_config txconf;
 	struct dma_async_tx_descriptor *txdesc;
 
-	if (!dws->tx_dma)
+	if (!xfer->tx_buf)
 		return NULL;
 
 	txconf.direction = DMA_MEM_TO_DEV;
 	txconf.dst_addr = dws->dma_addr;
-	txconf.dst_maxburst = LNW_DMA_MSIZE_16;
+	txconf.dst_maxburst = 16;
 	txconf.src_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
-	txconf.dst_addr_width = dws->dma_width;
+	txconf.dst_addr_width = convert_dma_width(dws->dma_width);
 	txconf.device_fc = false;
 
 	dmaengine_slave_config(dws->txchan, &txconf);
 
-	memset(&dws->tx_sgl, 0, sizeof(dws->tx_sgl));
-	dws->tx_sgl.dma_address = dws->tx_dma;
-	dws->tx_sgl.length = dws->len;
-
 	txdesc = dmaengine_prep_slave_sg(dws->txchan,
-				&dws->tx_sgl,
-				1,
+				xfer->tx_sg.sgl,
+				xfer->tx_sg.nents,
 				DMA_MEM_TO_DEV,
 				DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
+	if (!txdesc)
+		return NULL;
+
 	txdesc->callback = dw_spi_dma_tx_done;
 	txdesc->callback_param = dws;
 
@@ -153,74 +186,74 @@ static void dw_spi_dma_rx_done(void *arg)
 {
 	struct dw_spi *dws = arg;
 
-	if (test_and_clear_bit(RX_BUSY, &dws->dma_chan_busy) & BIT(TX_BUSY))
+	clear_bit(RX_BUSY, &dws->dma_chan_busy);
+	if (test_bit(TX_BUSY, &dws->dma_chan_busy))
 		return;
-	dw_spi_xfer_done(dws);
+	spi_finalize_current_transfer(dws->master);
 }
 
-static struct dma_async_tx_descriptor *dw_spi_dma_prepare_rx(struct dw_spi *dws)
+static struct dma_async_tx_descriptor *dw_spi_dma_prepare_rx(struct dw_spi *dws,
+		struct spi_transfer *xfer)
 {
 	struct dma_slave_config rxconf;
 	struct dma_async_tx_descriptor *rxdesc;
 
-	if (!dws->rx_dma)
+	if (!xfer->rx_buf)
 		return NULL;
 
 	rxconf.direction = DMA_DEV_TO_MEM;
 	rxconf.src_addr = dws->dma_addr;
-	rxconf.src_maxburst = LNW_DMA_MSIZE_16;
+	rxconf.src_maxburst = 16;
 	rxconf.dst_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
-	rxconf.src_addr_width = dws->dma_width;
+	rxconf.src_addr_width = convert_dma_width(dws->dma_width);
 	rxconf.device_fc = false;
 
 	dmaengine_slave_config(dws->rxchan, &rxconf);
 
-	memset(&dws->rx_sgl, 0, sizeof(dws->rx_sgl));
-	dws->rx_sgl.dma_address = dws->rx_dma;
-	dws->rx_sgl.length = dws->len;
-
 	rxdesc = dmaengine_prep_slave_sg(dws->rxchan,
-				&dws->rx_sgl,
-				1,
+				xfer->rx_sg.sgl,
+				xfer->rx_sg.nents,
 				DMA_DEV_TO_MEM,
 				DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
+	if (!rxdesc)
+		return NULL;
+
 	rxdesc->callback = dw_spi_dma_rx_done;
 	rxdesc->callback_param = dws;
 
 	return rxdesc;
 }
 
-static void dw_spi_dma_setup(struct dw_spi *dws)
+static int mid_spi_dma_setup(struct dw_spi *dws, struct spi_transfer *xfer)
 {
 	u16 dma_ctrl = 0;
 
-	spi_enable_chip(dws, 0);
-
-	dw_writew(dws, DW_SPI_DMARDLR, 0xf);
-	dw_writew(dws, DW_SPI_DMATDLR, 0x10);
+	dw_writel(dws, DW_SPI_DMARDLR, 0xf);
+	dw_writel(dws, DW_SPI_DMATDLR, 0x10);
 
-	if (dws->tx_dma)
+	if (xfer->tx_buf)
 		dma_ctrl |= SPI_DMA_TDMAE;
-	if (dws->rx_dma)
+	if (xfer->rx_buf)
 		dma_ctrl |= SPI_DMA_RDMAE;
-	dw_writew(dws, DW_SPI_DMACR, dma_ctrl);
+	dw_writel(dws, DW_SPI_DMACR, dma_ctrl);
+
+	/* Set the interrupt mask */
+	spi_umask_intr(dws, SPI_INT_TXOI | SPI_INT_RXUI | SPI_INT_RXOI);
+
+	dws->transfer_handler = dma_transfer;
 
-	spi_enable_chip(dws, 1);
+	return 0;
 }
 
-static int mid_spi_dma_transfer(struct dw_spi *dws, int cs_change)
+static int mid_spi_dma_transfer(struct dw_spi *dws, struct spi_transfer *xfer)
 {
 	struct dma_async_tx_descriptor *txdesc, *rxdesc;
 
-	/* 1. setup DMA related registers */
-	if (cs_change)
-		dw_spi_dma_setup(dws);
-
-	/* 2. Prepare the TX dma transfer */
-	txdesc = dw_spi_dma_prepare_tx(dws);
+	/* Prepare the TX dma transfer */
+	txdesc = dw_spi_dma_prepare_tx(dws, xfer);
 
-	/* 3. Prepare the RX dma transfer */
-	rxdesc = dw_spi_dma_prepare_rx(dws);
+	/* Prepare the RX dma transfer */
+	rxdesc = dw_spi_dma_prepare_rx(dws, xfer);
 
 	/* rx must be started before tx due to spi instinct */
 	if (rxdesc) {
@@ -238,10 +271,25 @@ static int mid_spi_dma_transfer(struct dw_spi *dws, int cs_change)
 	return 0;
 }
 
+static void mid_spi_dma_stop(struct dw_spi *dws)
+{
+	if (test_bit(TX_BUSY, &dws->dma_chan_busy)) {
+		dmaengine_terminate_all(dws->txchan);
+		clear_bit(TX_BUSY, &dws->dma_chan_busy);
+	}
+	if (test_bit(RX_BUSY, &dws->dma_chan_busy)) {
+		dmaengine_terminate_all(dws->rxchan);
+		clear_bit(RX_BUSY, &dws->dma_chan_busy);
+	}
+}
+
 static struct dw_spi_dma_ops mid_dma_ops = {
 	.dma_init	= mid_spi_dma_init,
 	.dma_exit	= mid_spi_dma_exit,
+	.dma_setup	= mid_spi_dma_setup,
+	.can_dma	= mid_spi_can_dma,
 	.dma_transfer	= mid_spi_dma_transfer,
+	.dma_stop	= mid_spi_dma_stop,
 };
 #endif
 
@@ -274,9 +322,8 @@ int dw_spi_mid_init(struct dw_spi *dws)
 	iounmap(clk_reg);
 
 #ifdef CONFIG_SPI_DW_MID_DMA
-	dws->dma_priv = kzalloc(sizeof(struct mid_dma), GFP_KERNEL);
-	if (!dws->dma_priv)
-		return -ENOMEM;
+	dws->dma_tx = &mid_dma_tx;
+	dws->dma_rx = &mid_dma_rx;
 	dws->dma_ops = &mid_dma_ops;
 #endif
 	return 0;
diff --git a/drivers/spi/spi-dw-pci.c b/drivers/spi/spi-dw-pci.c
index 5ba3310..6d331e0 100644
--- a/drivers/spi/spi-dw-pci.c
+++ b/drivers/spi/spi-dw-pci.c
@@ -36,13 +36,13 @@ struct spi_pci_desc {
 
 static struct spi_pci_desc spi_pci_mid_desc_1 = {
 	.setup = dw_spi_mid_init,
-	.num_cs = 32,
+	.num_cs = 5,
 	.bus_num = 0,
 };
 
 static struct spi_pci_desc spi_pci_mid_desc_2 = {
 	.setup = dw_spi_mid_init,
-	.num_cs = 4,
+	.num_cs = 2,
 	.bus_num = 1,
 };
 
diff --git a/drivers/spi/spi-dw.c b/drivers/spi/spi-dw.c
index 5a97a62..8d67d03 100644
--- a/drivers/spi/spi-dw.c
+++ b/drivers/spi/spi-dw.c
@@ -28,11 +28,6 @@
 #include <linux/debugfs.h>
 #endif
 
-#define START_STATE	((void *)0)
-#define RUNNING_STATE	((void *)1)
-#define DONE_STATE	((void *)2)
-#define ERROR_STATE	((void *)-1)
-
 /* Slave spi_dev related */
 struct chip_data {
 	u16 cr0;
@@ -143,13 +138,26 @@ static inline void dw_spi_debugfs_remove(struct dw_spi *dws)
 }
 #endif /* CONFIG_DEBUG_FS */
 
+static void dw_spi_set_cs(struct spi_device *spi, bool enable)
+{
+	struct dw_spi *dws = spi_master_get_devdata(spi->master);
+	struct chip_data *chip = spi_get_ctldata(spi);
+
+	/* Chip select logic is inverted from spi_set_cs() */
+	if (chip && chip->cs_control)
+		chip->cs_control(!enable);
+
+	if (!enable)
+		dw_writel(dws, DW_SPI_SER, BIT(spi->chip_select));
+}
+
 /* Return the max entries we can fill into tx fifo */
 static inline u32 tx_max(struct dw_spi *dws)
 {
 	u32 tx_left, tx_room, rxtx_gap;
 
 	tx_left = (dws->tx_end - dws->tx) / dws->n_bytes;
-	tx_room = dws->fifo_len - dw_readw(dws, DW_SPI_TXFLR);
+	tx_room = dws->fifo_len - dw_readl(dws, DW_SPI_TXFLR);
 
 	/*
 	 * Another concern is about the tx/rx mismatch, we
@@ -170,7 +178,7 @@ static inline u32 rx_max(struct dw_spi *dws)
 {
 	u32 rx_left = (dws->rx_end - dws->rx) / dws->n_bytes;
 
-	return min_t(u32, rx_left, dw_readw(dws, DW_SPI_RXFLR));
+	return min_t(u32, rx_left, dw_readl(dws, DW_SPI_RXFLR));
 }
 
 static void dw_writer(struct dw_spi *dws)
@@ -186,7 +194,7 @@ static void dw_writer(struct dw_spi *dws)
 			else
 				txw = *(u16 *)(dws->tx);
 		}
-		dw_writew(dws, DW_SPI_DR, txw);
+		dw_writel(dws, DW_SPI_DR, txw);
 		dws->tx += dws->n_bytes;
 	}
 }
@@ -197,7 +205,7 @@ static void dw_reader(struct dw_spi *dws)
 	u16 rxw;
 
 	while (max--) {
-		rxw = dw_readw(dws, DW_SPI_DR);
+		rxw = dw_readl(dws, DW_SPI_DR);
 		/* Care rx only if the transfer's original "rx" is not null */
 		if (dws->rx_end - dws->len) {
 			if (dws->n_bytes == 1)
@@ -209,103 +217,22 @@ static void dw_reader(struct dw_spi *dws)
 	}
 }
 
-static void *next_transfer(struct dw_spi *dws)
-{
-	struct spi_message *msg = dws->cur_msg;
-	struct spi_transfer *trans = dws->cur_transfer;
-
-	/* Move to next transfer */
-	if (trans->transfer_list.next != &msg->transfers) {
-		dws->cur_transfer =
-			list_entry(trans->transfer_list.next,
-					struct spi_transfer,
-					transfer_list);
-		return RUNNING_STATE;
-	}
-
-	return DONE_STATE;
-}
-
-/*
- * Note: first step is the protocol driver prepares
- * a dma-capable memory, and this func just need translate
- * the virt addr to physical
- */
-static int map_dma_buffers(struct dw_spi *dws)
-{
-	if (!dws->cur_msg->is_dma_mapped
-		|| !dws->dma_inited
-		|| !dws->cur_chip->enable_dma
-		|| !dws->dma_ops)
-		return 0;
-
-	if (dws->cur_transfer->tx_dma)
-		dws->tx_dma = dws->cur_transfer->tx_dma;
-
-	if (dws->cur_transfer->rx_dma)
-		dws->rx_dma = dws->cur_transfer->rx_dma;
-
-	return 1;
-}
-
-/* Caller already set message->status; dma and pio irqs are blocked */
-static void giveback(struct dw_spi *dws)
-{
-	struct spi_transfer *last_transfer;
-	struct spi_message *msg;
-
-	msg = dws->cur_msg;
-	dws->cur_msg = NULL;
-	dws->cur_transfer = NULL;
-	dws->prev_chip = dws->cur_chip;
-	dws->cur_chip = NULL;
-	dws->dma_mapped = 0;
-
-	last_transfer = list_last_entry(&msg->transfers, struct spi_transfer,
-					transfer_list);
-
-	if (!last_transfer->cs_change)
-		spi_chip_sel(dws, msg->spi, 0);
-
-	spi_finalize_current_message(dws->master);
-}
-
 static void int_error_stop(struct dw_spi *dws, const char *msg)
 {
-	/* Stop the hw */
-	spi_enable_chip(dws, 0);
+	spi_reset_chip(dws);
 
 	dev_err(&dws->master->dev, "%s\n", msg);
-	dws->cur_msg->state = ERROR_STATE;
-	tasklet_schedule(&dws->pump_transfers);
+	dws->master->cur_msg->status = -EIO;
+	spi_finalize_current_transfer(dws->master);
 }
 
-void dw_spi_xfer_done(struct dw_spi *dws)
-{
-	/* Update total byte transferred return count actual bytes read */
-	dws->cur_msg->actual_length += dws->len;
-
-	/* Move to next transfer */
-	dws->cur_msg->state = next_transfer(dws);
-
-	/* Handle end of message */
-	if (dws->cur_msg->state == DONE_STATE) {
-		dws->cur_msg->status = 0;
-		giveback(dws);
-	} else
-		tasklet_schedule(&dws->pump_transfers);
-}
-EXPORT_SYMBOL_GPL(dw_spi_xfer_done);
-
 static irqreturn_t interrupt_transfer(struct dw_spi *dws)
 {
-	u16 irq_status = dw_readw(dws, DW_SPI_ISR);
+	u16 irq_status = dw_readl(dws, DW_SPI_ISR);
 
 	/* Error handling */
 	if (irq_status & (SPI_INT_TXOI | SPI_INT_RXOI | SPI_INT_RXUI)) {
-		dw_readw(dws, DW_SPI_TXOICR);
-		dw_readw(dws, DW_SPI_RXOICR);
-		dw_readw(dws, DW_SPI_RXUICR);
+		dw_readl(dws, DW_SPI_ICR);
 		int_error_stop(dws, "interrupt_transfer: fifo overrun/underrun");
 		return IRQ_HANDLED;
 	}
@@ -313,7 +240,7 @@ static irqreturn_t interrupt_transfer(struct dw_spi *dws)
 	dw_reader(dws);
 	if (dws->rx_end == dws->rx) {
 		spi_mask_intr(dws, SPI_INT_TXEI);
-		dw_spi_xfer_done(dws);
+		spi_finalize_current_transfer(dws->master);
 		return IRQ_HANDLED;
 	}
 	if (irq_status & SPI_INT_TXEI) {
@@ -328,13 +255,14 @@ static irqreturn_t interrupt_transfer(struct dw_spi *dws)
 
 static irqreturn_t dw_spi_irq(int irq, void *dev_id)
 {
-	struct dw_spi *dws = dev_id;
-	u16 irq_status = dw_readw(dws, DW_SPI_ISR) & 0x3f;
+	struct spi_master *master = dev_id;
+	struct dw_spi *dws = spi_master_get_devdata(master);
+	u16 irq_status = dw_readl(dws, DW_SPI_ISR) & 0x3f;
 
 	if (!irq_status)
 		return IRQ_NONE;
 
-	if (!dws->cur_msg) {
+	if (!master->cur_msg) {
 		spi_mask_intr(dws, SPI_INT_TXEI);
 		return IRQ_HANDLED;
 	}
@@ -343,7 +271,7 @@ static irqreturn_t dw_spi_irq(int irq, void *dev_id)
 }
 
 /* Must be called inside pump_transfers() */
-static void poll_transfer(struct dw_spi *dws)
+static int poll_transfer(struct dw_spi *dws)
 {
 	do {
 		dw_writer(dws);
@@ -351,64 +279,32 @@ static void poll_transfer(struct dw_spi *dws)
 		cpu_relax();
 	} while (dws->rx_end > dws->rx);
 
-	dw_spi_xfer_done(dws);
+	return 0;
 }
 
-static void pump_transfers(unsigned long data)
+static int dw_spi_transfer_one(struct spi_master *master,
+		struct spi_device *spi, struct spi_transfer *transfer)
 {
-	struct dw_spi *dws = (struct dw_spi *)data;
-	struct spi_message *message = NULL;
-	struct spi_transfer *transfer = NULL;
-	struct spi_transfer *previous = NULL;
-	struct spi_device *spi = NULL;
-	struct chip_data *chip = NULL;
-	u8 bits = 0;
+	struct dw_spi *dws = spi_master_get_devdata(master);
+	struct chip_data *chip = spi_get_ctldata(spi);
 	u8 imask = 0;
-	u8 cs_change = 0;
-	u16 txint_level = 0;
+	u16 txlevel = 0;
 	u16 clk_div = 0;
 	u32 speed = 0;
 	u32 cr0 = 0;
+	int ret;
 
-	/* Get current state information */
-	message = dws->cur_msg;
-	transfer = dws->cur_transfer;
-	chip = dws->cur_chip;
-	spi = message->spi;
-
-	if (message->state == ERROR_STATE) {
-		message->status = -EIO;
-		goto early_exit;
-	}
-
-	/* Handle end of message */
-	if (message->state == DONE_STATE) {
-		message->status = 0;
-		goto early_exit;
-	}
-
-	/* Delay if requested at end of transfer */
-	if (message->state == RUNNING_STATE) {
-		previous = list_entry(transfer->transfer_list.prev,
-					struct spi_transfer,
-					transfer_list);
-		if (previous->delay_usecs)
-			udelay(previous->delay_usecs);
-	}
-
+	dws->dma_mapped = 0;
 	dws->n_bytes = chip->n_bytes;
 	dws->dma_width = chip->dma_width;
-	dws->cs_control = chip->cs_control;
 
-	dws->rx_dma = transfer->rx_dma;
-	dws->tx_dma = transfer->tx_dma;
 	dws->tx = (void *)transfer->tx_buf;
 	dws->tx_end = dws->tx + transfer->len;
 	dws->rx = transfer->rx_buf;
 	dws->rx_end = dws->rx + transfer->len;
-	dws->len = dws->cur_transfer->len;
-	if (chip != dws->prev_chip)
-		cs_change = 1;
+	dws->len = transfer->len;
+
+	spi_enable_chip(dws, 0);
 
 	cr0 = chip->cr0;
 
@@ -416,32 +312,37 @@ static void pump_transfers(unsigned long data)
 	if (transfer->speed_hz) {
 		speed = chip->speed_hz;
 
-		if ((transfer->speed_hz != speed) || (!chip->clk_div)) {
+		if ((transfer->speed_hz != speed) || !chip->clk_div) {
 			speed = transfer->speed_hz;
 
 			/* clk_div doesn't support odd number */
-			clk_div = dws->max_freq / speed;
-			clk_div = (clk_div + 1) & 0xfffe;
+			clk_div = (dws->max_freq / speed + 1) & 0xfffe;
 
 			chip->speed_hz = speed;
 			chip->clk_div = clk_div;
+
+			spi_set_clk(dws, chip->clk_div);
 		}
 	}
 	if (transfer->bits_per_word) {
-		bits = transfer->bits_per_word;
-		dws->n_bytes = dws->dma_width = bits >> 3;
-		cr0 = (bits - 1)
+		if (transfer->bits_per_word == 8) {
+			dws->n_bytes = 1;
+			dws->dma_width = 1;
+		} else if (transfer->bits_per_word == 16) {
+			dws->n_bytes = 2;
+			dws->dma_width = 2;
+		}
+		cr0 = (transfer->bits_per_word - 1)
 			| (chip->type << SPI_FRF_OFFSET)
 			| (spi->mode << SPI_MODE_OFFSET)
 			| (chip->tmode << SPI_TMOD_OFFSET);
 	}
-	message->state = RUNNING_STATE;
 
 	/*
 	 * Adjust transfer mode if necessary. Requires platform dependent
 	 * chipselect mechanism.
 	 */
-	if (dws->cs_control) {
+	if (chip->cs_control) {
 		if (dws->rx && dws->tx)
 			chip->tmode = SPI_TMOD_TR;
 		else if (dws->rx)
@@ -453,80 +354,60 @@ static void pump_transfers(unsigned long data)
 		cr0 |= (chip->tmode << SPI_TMOD_OFFSET);
 	}
 
+	dw_writel(dws, DW_SPI_CTRL0, cr0);
+
 	/* Check if current transfer is a DMA transaction */
-	dws->dma_mapped = map_dma_buffers(dws);
+	if (master->can_dma && master->can_dma(master, spi, transfer))
+		dws->dma_mapped = master->cur_msg_mapped;
+
+	/* For poll mode just disable all interrupts */
+	spi_mask_intr(dws, 0xff);
 
 	/*
 	 * Interrupt mode
 	 * we only need set the TXEI IRQ, as TX/RX always happen syncronizely
 	 */
-	if (!dws->dma_mapped && !chip->poll_mode) {
-		int templen = dws->len / dws->n_bytes;
-
-		txint_level = dws->fifo_len / 2;
-		txint_level = (templen > txint_level) ? txint_level : templen;
+	if (dws->dma_mapped) {
+		ret = dws->dma_ops->dma_setup(dws, transfer);
+		if (ret < 0) {
+			spi_enable_chip(dws, 1);
+			return ret;
+		}
+	} else if (!chip->poll_mode) {
+		txlevel = min_t(u16, dws->fifo_len / 2, dws->len / dws->n_bytes);
+		dw_writel(dws, DW_SPI_TXFLTR, txlevel);
 
+		/* Set the interrupt mask */
 		imask |= SPI_INT_TXEI | SPI_INT_TXOI |
 			 SPI_INT_RXUI | SPI_INT_RXOI;
+		spi_umask_intr(dws, imask);
+
 		dws->transfer_handler = interrupt_transfer;
 	}
 
-	/*
-	 * Reprogram registers only if
-	 *	1. chip select changes
-	 *	2. clk_div is changed
-	 *	3. control value changes
-	 */
-	if (dw_readw(dws, DW_SPI_CTRL0) != cr0 || cs_change || clk_div || imask) {
-		spi_enable_chip(dws, 0);
-
-		if (dw_readw(dws, DW_SPI_CTRL0) != cr0)
-			dw_writew(dws, DW_SPI_CTRL0, cr0);
-
-		spi_set_clk(dws, clk_div ? clk_div : chip->clk_div);
-		spi_chip_sel(dws, spi, 1);
-
-		/* Set the interrupt mask, for poll mode just disable all int */
-		spi_mask_intr(dws, 0xff);
-		if (imask)
-			spi_umask_intr(dws, imask);
-		if (txint_level)
-			dw_writew(dws, DW_SPI_TXFLTR, txint_level);
+	spi_enable_chip(dws, 1);
 
-		spi_enable_chip(dws, 1);
-		if (cs_change)
-			dws->prev_chip = chip;
+	if (dws->dma_mapped) {
+		ret = dws->dma_ops->dma_transfer(dws, transfer);
+		if (ret < 0)
+			return ret;
 	}
 
-	if (dws->dma_mapped)
-		dws->dma_ops->dma_transfer(dws, cs_change);
-
 	if (chip->poll_mode)
-		poll_transfer(dws);
-
-	return;
+		return poll_transfer(dws);
 
-early_exit:
-	giveback(dws);
+	return 1;
 }
 
-static int dw_spi_transfer_one_message(struct spi_master *master,
+static void dw_spi_handle_err(struct spi_master *master,
 		struct spi_message *msg)
 {
 	struct dw_spi *dws = spi_master_get_devdata(master);
 
-	dws->cur_msg = msg;
-	/* Initial message state */
-	dws->cur_msg->state = START_STATE;
-	dws->cur_transfer = list_entry(dws->cur_msg->transfers.next,
-						struct spi_transfer,
-						transfer_list);
-	dws->cur_chip = spi_get_ctldata(dws->cur_msg->spi);
-
-	/* Launch transfers */
-	tasklet_schedule(&dws->pump_transfers);
+	if (dws->dma_mapped)
+		dws->dma_ops->dma_stop(dws);
 
-	return 0;
+	spi_reset_chip(dws);
 }
 
 /* This may be called twice for each spi dev */
@@ -561,8 +442,6 @@ static int dw_spi_setup(struct spi_device *spi)
 
 		chip->rx_threshold = 0;
 		chip->tx_threshold = 0;
-
-		chip->enable_dma = chip_info->enable_dma;
 	}
 
 	if (spi->bits_per_word == 8) {
@@ -610,9 +489,7 @@ static void dw_spi_cleanup(struct spi_device *spi)
 /* Restart the controller, disable all interrupts, clean rx fifo */
 static void spi_hw_init(struct device *dev, struct dw_spi *dws)
 {
-	spi_enable_chip(dws, 0);
-	spi_mask_intr(dws, 0xff);
-	spi_enable_chip(dws, 1);
+	spi_reset_chip(dws);
 
 	/*
 	 * Try to detect the FIFO depth if not set by interface driver,
@@ -621,14 +498,14 @@ static void spi_hw_init(struct device *dev, struct dw_spi *dws)
 	if (!dws->fifo_len) {
 		u32 fifo;
 
-		for (fifo = 2; fifo <= 256; fifo++) {
-			dw_writew(dws, DW_SPI_TXFLTR, fifo);
-			if (fifo != dw_readw(dws, DW_SPI_TXFLTR))
+		for (fifo = 1; fifo < 256; fifo++) {
+			dw_writel(dws, DW_SPI_TXFLTR, fifo);
+			if (fifo != dw_readl(dws, DW_SPI_TXFLTR))
 				break;
 		}
-		dw_writew(dws, DW_SPI_TXFLTR, 0);
+		dw_writel(dws, DW_SPI_TXFLTR, 0);
 
-		dws->fifo_len = (fifo == 2) ? 0 : fifo - 1;
+		dws->fifo_len = (fifo == 1) ? 0 : fifo;
 		dev_dbg(dev, "Detected FIFO size: %u bytes\n", dws->fifo_len);
 	}
 }
@@ -646,13 +523,12 @@ int dw_spi_add_host(struct device *dev, struct dw_spi *dws)
 
 	dws->master = master;
 	dws->type = SSI_MOTO_SPI;
-	dws->prev_chip = NULL;
 	dws->dma_inited = 0;
 	dws->dma_addr = (dma_addr_t)(dws->paddr + 0x60);
 	snprintf(dws->name, sizeof(dws->name), "dw_spi%d", dws->bus_num);
 
 	ret = devm_request_irq(dev, dws->irq, dw_spi_irq, IRQF_SHARED,
-			dws->name, dws);
+			dws->name, master);
 	if (ret < 0) {
 		dev_err(&master->dev, "can not get IRQ\n");
 		goto err_free_master;
@@ -664,7 +540,9 @@ int dw_spi_add_host(struct device *dev, struct dw_spi *dws)
 	master->num_chipselect = dws->num_cs;
 	master->setup = dw_spi_setup;
 	master->cleanup = dw_spi_cleanup;
-	master->transfer_one_message = dw_spi_transfer_one_message;
+	master->set_cs = dw_spi_set_cs;
+	master->transfer_one = dw_spi_transfer_one;
+	master->handle_err = dw_spi_handle_err;
 	master->max_speed_hz = dws->max_freq;
 	master->dev.of_node = dev->of_node;
 
@@ -676,11 +554,11 @@ int dw_spi_add_host(struct device *dev, struct dw_spi *dws)
 		if (ret) {
 			dev_warn(dev, "DMA init failed\n");
 			dws->dma_inited = 0;
+		} else {
+			master->can_dma = dws->dma_ops->can_dma;
 		}
 	}
 
-	tasklet_init(&dws->pump_transfers, pump_transfers, (unsigned long)dws);
-
 	spi_master_set_devdata(master, dws);
 	ret = devm_spi_register_master(dev, master);
 	if (ret) {
diff --git a/drivers/spi/spi-dw.h b/drivers/spi/spi-dw.h
index 3d32be6..6c91391 100644
--- a/drivers/spi/spi-dw.h
+++ b/drivers/spi/spi-dw.h
@@ -91,12 +91,15 @@ struct dw_spi;
 struct dw_spi_dma_ops {
 	int (*dma_init)(struct dw_spi *dws);
 	void (*dma_exit)(struct dw_spi *dws);
-	int (*dma_transfer)(struct dw_spi *dws, int cs_change);
+	int (*dma_setup)(struct dw_spi *dws, struct spi_transfer *xfer);
+	bool (*can_dma)(struct spi_master *master, struct spi_device *spi,
+			struct spi_transfer *xfer);
+	int (*dma_transfer)(struct dw_spi *dws, struct spi_transfer *xfer);
+	void (*dma_stop)(struct dw_spi *dws);
 };
 
 struct dw_spi {
 	struct spi_master	*master;
-	struct spi_device	*cur_dev;
 	enum dw_ssi_type	type;
 	char			name[16];
 
@@ -109,41 +112,26 @@ struct dw_spi {
 	u16			bus_num;
 	u16			num_cs;		/* supported slave numbers */
 
-	/* Message Transfer pump */
-	struct tasklet_struct	pump_transfers;
-
 	/* Current message transfer state info */
-	struct spi_message	*cur_msg;
-	struct spi_transfer	*cur_transfer;
-	struct chip_data	*cur_chip;
-	struct chip_data	*prev_chip;
 	size_t			len;
 	void			*tx;
 	void			*tx_end;
 	void			*rx;
 	void			*rx_end;
 	int			dma_mapped;
-	dma_addr_t		rx_dma;
-	dma_addr_t		tx_dma;
-	size_t			rx_map_len;
-	size_t			tx_map_len;
 	u8			n_bytes;	/* current is a 1/2 bytes op */
-	u8			max_bits_per_word;	/* maxim is 16b */
 	u32			dma_width;
 	irqreturn_t		(*transfer_handler)(struct dw_spi *dws);
-	void			(*cs_control)(u32 command);
 
-	/* Dma info */
+	/* DMA info */
 	int			dma_inited;
 	struct dma_chan		*txchan;
-	struct scatterlist	tx_sgl;
 	struct dma_chan		*rxchan;
-	struct scatterlist	rx_sgl;
 	unsigned long		dma_chan_busy;
-	struct device		*dma_dev;
 	dma_addr_t		dma_addr; /* phy address of the Data register */
 	struct dw_spi_dma_ops	*dma_ops;
-	void			*dma_priv; /* platform relate info */
+	void			*dma_tx;
+	void			*dma_rx;
 
 	/* Bus interface info */
 	void			*priv;
@@ -162,16 +150,6 @@ static inline void dw_writel(struct dw_spi *dws, u32 offset, u32 val)
 	__raw_writel(val, dws->regs + offset);
 }
 
-static inline u16 dw_readw(struct dw_spi *dws, u32 offset)
-{
-	return __raw_readw(dws->regs + offset);
-}
-
-static inline void dw_writew(struct dw_spi *dws, u32 offset, u16 val)
-{
-	__raw_writew(val, dws->regs + offset);
-}
-
 static inline void spi_enable_chip(struct dw_spi *dws, int enable)
 {
 	dw_writel(dws, DW_SPI_SSIENR, (enable ? 1 : 0));
@@ -182,22 +160,6 @@ static inline void spi_set_clk(struct dw_spi *dws, u16 div)
 	dw_writel(dws, DW_SPI_BAUDR, div);
 }
 
-static inline void spi_chip_sel(struct dw_spi *dws, struct spi_device *spi,
-		int active)
-{
-	u16 cs = spi->chip_select;
-	int gpio_val = active ? (spi->mode & SPI_CS_HIGH) :
-		!(spi->mode & SPI_CS_HIGH);
-
-	if (dws->cs_control)
-		dws->cs_control(active);
-	if (gpio_is_valid(spi->cs_gpio))
-		gpio_set_value(spi->cs_gpio, gpio_val);
-
-	if (active)
-		dw_writel(dws, DW_SPI_SER, 1 << cs);
-}
-
 /* Disable IRQ bits */
 static inline void spi_mask_intr(struct dw_spi *dws, u32 mask)
 {
@@ -217,15 +179,26 @@ static inline void spi_umask_intr(struct dw_spi *dws, u32 mask)
 }
 
 /*
+ * This does disable the SPI controller, interrupts, and re-enable the
+ * controller back. Transmit and receive FIFO buffers are cleared when the
+ * device is disabled.
+ */
+static inline void spi_reset_chip(struct dw_spi *dws)
+{
+	spi_enable_chip(dws, 0);
+	spi_mask_intr(dws, 0xff);
+	spi_enable_chip(dws, 1);
+}
+
+/*
  * Each SPI slave device to work with dw_api controller should
- * has such a structure claiming its working mode (PIO/DMA etc),
+ * has such a structure claiming its working mode (poll or PIO/DMA),
  * which can be save in the "controller_data" member of the
  * struct spi_device.
  */
 struct dw_spi_chip {
 	u8 poll_mode;	/* 1 for controller polling mode */
 	u8 type;	/* SPI/SSP/MicroWire */
-	u8 enable_dma;
 	void (*cs_control)(u32 command);
 };
 
@@ -233,7 +206,6 @@ extern int dw_spi_add_host(struct device *dev, struct dw_spi *dws);
 extern void dw_spi_remove_host(struct dw_spi *dws);
 extern int dw_spi_suspend_host(struct dw_spi *dws);
 extern int dw_spi_resume_host(struct dw_spi *dws);
-extern void dw_spi_xfer_done(struct dw_spi *dws);
 
 /* platform related setup */
 extern int dw_spi_mid_init(struct dw_spi *dws); /* Intel MID platforms */
diff --git a/drivers/spi/spi-fsl-dspi.c b/drivers/spi/spi-fsl-dspi.c
index d1a3924..5fe54cd 100644
--- a/drivers/spi/spi-fsl-dspi.c
+++ b/drivers/spi/spi-fsl-dspi.c
@@ -20,6 +20,7 @@
 #include <linux/interrupt.h>
 #include <linux/io.h>
 #include <linux/kernel.h>
+#include <linux/math64.h>
 #include <linux/module.h>
 #include <linux/of.h>
 #include <linux/of_device.h>
@@ -29,6 +30,7 @@
 #include <linux/sched.h>
 #include <linux/spi/spi.h>
 #include <linux/spi/spi_bitbang.h>
+#include <linux/time.h>
 
 #define DRIVER_NAME "fsl-dspi"
 
@@ -51,7 +53,7 @@
 #define SPI_CTAR_CPOL(x)	((x) << 26)
 #define SPI_CTAR_CPHA(x)	((x) << 25)
 #define SPI_CTAR_LSBFE(x)	((x) << 24)
-#define SPI_CTAR_PCSSCR(x)	(((x) & 0x00000003) << 22)
+#define SPI_CTAR_PCSSCK(x)	(((x) & 0x00000003) << 22)
 #define SPI_CTAR_PASC(x)	(((x) & 0x00000003) << 20)
 #define SPI_CTAR_PDT(x)	(((x) & 0x00000003) << 18)
 #define SPI_CTAR_PBR(x)	(((x) & 0x00000003) << 16)
@@ -59,6 +61,7 @@
 #define SPI_CTAR_ASC(x)	(((x) & 0x0000000f) << 8)
 #define SPI_CTAR_DT(x)		(((x) & 0x0000000f) << 4)
 #define SPI_CTAR_BR(x)		((x) & 0x0000000f)
+#define SPI_CTAR_SCALE_BITS	0xf
 
 #define SPI_CTAR0_SLAVE	0x0c
 
@@ -148,23 +151,66 @@ static void hz_to_spi_baud(char *pbr, char *br, int speed_hz,
 		16,	32,	64,	128,
 		256,	512,	1024,	2048,
 		4096,	8192,	16384,	32768 };
-	int temp, i = 0, j = 0;
+	int scale_needed, scale, minscale = INT_MAX;
+	int i, j;
+
+	scale_needed = clkrate / speed_hz;
+	if (clkrate % speed_hz)
+		scale_needed++;
+
+	for (i = 0; i < ARRAY_SIZE(brs); i++)
+		for (j = 0; j < ARRAY_SIZE(pbr_tbl); j++) {
+			scale = brs[i] * pbr_tbl[j];
+			if (scale >= scale_needed) {
+				if (scale < minscale) {
+					minscale = scale;
+					*br = i;
+					*pbr = j;
+				}
+				break;
+			}
+		}
 
-	temp = clkrate / 2 / speed_hz;
+	if (minscale == INT_MAX) {
+		pr_warn("Can not find valid baud rate,speed_hz is %d,clkrate is %ld, we use the max prescaler value.\n",
+			speed_hz, clkrate);
+		*pbr = ARRAY_SIZE(pbr_tbl) - 1;
+		*br =  ARRAY_SIZE(brs) - 1;
+	}
+}
 
-	for (i = 0; i < ARRAY_SIZE(pbr_tbl); i++)
-		for (j = 0; j < ARRAY_SIZE(brs); j++) {
-			if (pbr_tbl[i] * brs[j] >= temp) {
-				*pbr = i;
-				*br = j;
-				return;
+static void ns_delay_scale(char *psc, char *sc, int delay_ns,
+		unsigned long clkrate)
+{
+	int pscale_tbl[4] = {1, 3, 5, 7};
+	int scale_needed, scale, minscale = INT_MAX;
+	int i, j;
+	u32 remainder;
+
+	scale_needed = div_u64_rem((u64)delay_ns * clkrate, NSEC_PER_SEC,
+			&remainder);
+	if (remainder)
+		scale_needed++;
+
+	for (i = 0; i < ARRAY_SIZE(pscale_tbl); i++)
+		for (j = 0; j <= SPI_CTAR_SCALE_BITS; j++) {
+			scale = pscale_tbl[i] * (2 << j);
+			if (scale >= scale_needed) {
+				if (scale < minscale) {
+					minscale = scale;
+					*psc = i;
+					*sc = j;
+				}
+				break;
 			}
 		}
 
-	pr_warn("Can not find valid baud rate,speed_hz is %d,clkrate is %ld\
-		,we use the max prescaler value.\n", speed_hz, clkrate);
-	*pbr = ARRAY_SIZE(pbr_tbl) - 1;
-	*br =  ARRAY_SIZE(brs) - 1;
+	if (minscale == INT_MAX) {
+		pr_warn("Cannot find correct scale values for %dns delay at clkrate %ld, using max prescaler value",
+			delay_ns, clkrate);
+		*psc = ARRAY_SIZE(pscale_tbl) - 1;
+		*sc = SPI_CTAR_SCALE_BITS;
+	}
 }
 
 static int dspi_transfer_write(struct fsl_dspi *dspi)
@@ -345,7 +391,10 @@ static int dspi_setup(struct spi_device *spi)
 {
 	struct chip_data *chip;
 	struct fsl_dspi *dspi = spi_master_get_devdata(spi->master);
-	unsigned char br = 0, pbr = 0, fmsz = 0;
+	u32 cs_sck_delay = 0, sck_cs_delay = 0;
+	unsigned char br = 0, pbr = 0, pcssck = 0, cssck = 0;
+	unsigned char pasc = 0, asc = 0, fmsz = 0;
+	unsigned long clkrate;
 
 	if ((spi->bits_per_word >= 4) && (spi->bits_per_word <= 16)) {
 		fmsz = spi->bits_per_word - 1;
@@ -362,18 +411,34 @@ static int dspi_setup(struct spi_device *spi)
 			return -ENOMEM;
 	}
 
+	of_property_read_u32(spi->dev.of_node, "fsl,spi-cs-sck-delay",
+			&cs_sck_delay);
+
+	of_property_read_u32(spi->dev.of_node, "fsl,spi-sck-cs-delay",
+			&sck_cs_delay);
+
 	chip->mcr_val = SPI_MCR_MASTER | SPI_MCR_PCSIS |
 		SPI_MCR_CLR_TXF | SPI_MCR_CLR_RXF;
 
 	chip->void_write_data = 0;
 
-	hz_to_spi_baud(&pbr, &br,
-			spi->max_speed_hz, clk_get_rate(dspi->clk));
+	clkrate = clk_get_rate(dspi->clk);
+	hz_to_spi_baud(&pbr, &br, spi->max_speed_hz, clkrate);
+
+	/* Set PCS to SCK delay scale values */
+	ns_delay_scale(&pcssck, &cssck, cs_sck_delay, clkrate);
+
+	/* Set After SCK delay scale values */
+	ns_delay_scale(&pasc, &asc, sck_cs_delay, clkrate);
 
 	chip->ctar_val =  SPI_CTAR_FMSZ(fmsz)
 		| SPI_CTAR_CPOL(spi->mode & SPI_CPOL ? 1 : 0)
 		| SPI_CTAR_CPHA(spi->mode & SPI_CPHA ? 1 : 0)
 		| SPI_CTAR_LSBFE(spi->mode & SPI_LSB_FIRST ? 1 : 0)
+		| SPI_CTAR_PCSSCK(pcssck)
+		| SPI_CTAR_CSSCK(cssck)
+		| SPI_CTAR_PASC(pasc)
+		| SPI_CTAR_ASC(asc)
 		| SPI_CTAR_PBR(pbr)
 		| SPI_CTAR_BR(br);
 
diff --git a/drivers/spi/spi-img-spfi.c b/drivers/spi/spi-img-spfi.c
index c01567d..788e2b1 100644
--- a/drivers/spi/spi-img-spfi.c
+++ b/drivers/spi/spi-img-spfi.c
@@ -12,6 +12,7 @@
 #include <linux/clk.h>
 #include <linux/delay.h>
 #include <linux/dmaengine.h>
+#include <linux/gpio.h>
 #include <linux/interrupt.h>
 #include <linux/io.h>
 #include <linux/irq.h>
@@ -122,36 +123,31 @@ static inline void spfi_start(struct img_spfi *spfi)
 	spfi_writel(spfi, val, SPFI_CONTROL);
 }
 
-static inline void spfi_stop(struct img_spfi *spfi)
-{
-	u32 val;
-
-	val = spfi_readl(spfi, SPFI_CONTROL);
-	val &= ~SPFI_CONTROL_SPFI_EN;
-	spfi_writel(spfi, val, SPFI_CONTROL);
-}
-
 static inline void spfi_reset(struct img_spfi *spfi)
 {
 	spfi_writel(spfi, SPFI_CONTROL_SOFT_RESET, SPFI_CONTROL);
-	udelay(1);
 	spfi_writel(spfi, 0, SPFI_CONTROL);
 }
 
-static void spfi_flush_tx_fifo(struct img_spfi *spfi)
+static int spfi_wait_all_done(struct img_spfi *spfi)
 {
-	unsigned long timeout = jiffies + msecs_to_jiffies(10);
+	unsigned long timeout = jiffies + msecs_to_jiffies(50);
 
-	spfi_writel(spfi, SPFI_INTERRUPT_SDE, SPFI_INTERRUPT_CLEAR);
 	while (time_before(jiffies, timeout)) {
-		if (spfi_readl(spfi, SPFI_INTERRUPT_STATUS) &
-		    SPFI_INTERRUPT_SDE)
-			return;
+		u32 status = spfi_readl(spfi, SPFI_INTERRUPT_STATUS);
+
+		if (status & SPFI_INTERRUPT_ALLDONETRIG) {
+			spfi_writel(spfi, SPFI_INTERRUPT_ALLDONETRIG,
+				    SPFI_INTERRUPT_CLEAR);
+			return 0;
+		}
 		cpu_relax();
 	}
 
-	dev_err(spfi->dev, "Timed out waiting for FIFO to drain\n");
+	dev_err(spfi->dev, "Timed out waiting for transaction to complete\n");
 	spfi_reset(spfi);
+
+	return -ETIMEDOUT;
 }
 
 static unsigned int spfi_pio_write32(struct img_spfi *spfi, const u32 *buf,
@@ -237,6 +233,7 @@ static int img_spfi_start_pio(struct spi_master *master,
 	const void *tx_buf = xfer->tx_buf;
 	void *rx_buf = xfer->rx_buf;
 	unsigned long timeout;
+	int ret;
 
 	if (tx_buf)
 		tx_bytes = xfer->len;
@@ -269,16 +266,15 @@ static int img_spfi_start_pio(struct spi_master *master,
 		cpu_relax();
 	}
 
+	ret = spfi_wait_all_done(spfi);
+	if (ret < 0)
+		return ret;
+
 	if (rx_bytes > 0 || tx_bytes > 0) {
 		dev_err(spfi->dev, "PIO transfer timed out\n");
-		spfi_reset(spfi);
 		return -ETIMEDOUT;
 	}
 
-	if (tx_buf)
-		spfi_flush_tx_fifo(spfi);
-	spfi_stop(spfi);
-
 	return 0;
 }
 
@@ -287,14 +283,12 @@ static void img_spfi_dma_rx_cb(void *data)
 	struct img_spfi *spfi = data;
 	unsigned long flags;
 
-	spin_lock_irqsave(&spfi->lock, flags);
+	spfi_wait_all_done(spfi);
 
+	spin_lock_irqsave(&spfi->lock, flags);
 	spfi->rx_dma_busy = false;
-	if (!spfi->tx_dma_busy) {
-		spfi_stop(spfi);
+	if (!spfi->tx_dma_busy)
 		spi_finalize_current_transfer(spfi->master);
-	}
-
 	spin_unlock_irqrestore(&spfi->lock, flags);
 }
 
@@ -303,16 +297,12 @@ static void img_spfi_dma_tx_cb(void *data)
 	struct img_spfi *spfi = data;
 	unsigned long flags;
 
-	spfi_flush_tx_fifo(spfi);
+	spfi_wait_all_done(spfi);
 
 	spin_lock_irqsave(&spfi->lock, flags);
-
 	spfi->tx_dma_busy = false;
-	if (!spfi->rx_dma_busy) {
-		spfi_stop(spfi);
+	if (!spfi->rx_dma_busy)
 		spi_finalize_current_transfer(spfi->master);
-	}
-
 	spin_unlock_irqrestore(&spfi->lock, flags);
 }
 
@@ -397,6 +387,75 @@ stop_dma:
 	return -EIO;
 }
 
+static void img_spfi_handle_err(struct spi_master *master,
+				struct spi_message *msg)
+{
+	struct img_spfi *spfi = spi_master_get_devdata(master);
+	unsigned long flags;
+
+	/*
+	 * Stop all DMA and reset the controller if the previous transaction
+	 * timed-out and never completed it's DMA.
+	 */
+	spin_lock_irqsave(&spfi->lock, flags);
+	if (spfi->tx_dma_busy || spfi->rx_dma_busy) {
+		spfi->tx_dma_busy = false;
+		spfi->rx_dma_busy = false;
+
+		dmaengine_terminate_all(spfi->tx_ch);
+		dmaengine_terminate_all(spfi->rx_ch);
+	}
+	spin_unlock_irqrestore(&spfi->lock, flags);
+}
+
+static int img_spfi_prepare(struct spi_master *master, struct spi_message *msg)
+{
+	struct img_spfi *spfi = spi_master_get_devdata(master);
+	u32 val;
+
+	val = spfi_readl(spfi, SPFI_PORT_STATE);
+	if (msg->spi->mode & SPI_CPHA)
+		val |= SPFI_PORT_STATE_CK_PHASE(msg->spi->chip_select);
+	else
+		val &= ~SPFI_PORT_STATE_CK_PHASE(msg->spi->chip_select);
+	if (msg->spi->mode & SPI_CPOL)
+		val |= SPFI_PORT_STATE_CK_POL(msg->spi->chip_select);
+	else
+		val &= ~SPFI_PORT_STATE_CK_POL(msg->spi->chip_select);
+	spfi_writel(spfi, val, SPFI_PORT_STATE);
+
+	return 0;
+}
+
+static int img_spfi_unprepare(struct spi_master *master,
+			      struct spi_message *msg)
+{
+	struct img_spfi *spfi = spi_master_get_devdata(master);
+
+	spfi_reset(spfi);
+
+	return 0;
+}
+
+static int img_spfi_setup(struct spi_device *spi)
+{
+	int ret;
+
+	ret = gpio_request_one(spi->cs_gpio, (spi->mode & SPI_CS_HIGH) ?
+			       GPIOF_OUT_INIT_LOW : GPIOF_OUT_INIT_HIGH,
+			       dev_name(&spi->dev));
+	if (ret)
+		dev_err(&spi->dev, "can't request chipselect gpio %d\n",
+				spi->cs_gpio);
+
+	return ret;
+}
+
+static void img_spfi_cleanup(struct spi_device *spi)
+{
+	gpio_free(spi->cs_gpio);
+}
+
 static void img_spfi_config(struct spi_master *master, struct spi_device *spi,
 			    struct spi_transfer *xfer)
 {
@@ -405,10 +464,10 @@ static void img_spfi_config(struct spi_master *master, struct spi_device *spi,
 
 	/*
 	 * output = spfi_clk * (BITCLK / 512), where BITCLK must be a
-	 * power of 2 up to 256 (where 255 == 256 since BITCLK is 8 bits)
+	 * power of 2 up to 128
 	 */
-	div = DIV_ROUND_UP(master->max_speed_hz, xfer->speed_hz);
-	div = clamp(512 / (1 << get_count_order(div)), 1, 255);
+	div = DIV_ROUND_UP(clk_get_rate(spfi->spfi_clk), xfer->speed_hz);
+	div = clamp(512 / (1 << get_count_order(div)), 1, 128);
 
 	val = spfi_readl(spfi, SPFI_DEVICE_PARAMETER(spi->chip_select));
 	val &= ~(SPFI_DEVICE_PARAMETER_BITCLK_MASK <<
@@ -416,6 +475,9 @@ static void img_spfi_config(struct spi_master *master, struct spi_device *spi,
 	val |= div << SPFI_DEVICE_PARAMETER_BITCLK_SHIFT;
 	spfi_writel(spfi, val, SPFI_DEVICE_PARAMETER(spi->chip_select));
 
+	spfi_writel(spfi, xfer->len << SPFI_TRANSACTION_TSIZE_SHIFT,
+		    SPFI_TRANSACTION);
+
 	val = spfi_readl(spfi, SPFI_CONTROL);
 	val &= ~(SPFI_CONTROL_SEND_DMA | SPFI_CONTROL_GET_DMA);
 	if (xfer->tx_buf)
@@ -429,25 +491,7 @@ static void img_spfi_config(struct spi_master *master, struct spi_device *spi,
 	else if (xfer->tx_nbits == SPI_NBITS_QUAD &&
 		 xfer->rx_nbits == SPI_NBITS_QUAD)
 		val |= SPFI_CONTROL_TMODE_QUAD << SPFI_CONTROL_TMODE_SHIFT;
-	val &= ~SPFI_CONTROL_CONTINUE;
-	if (!xfer->cs_change && !list_is_last(&xfer->transfer_list,
-					      &master->cur_msg->transfers))
-		val |= SPFI_CONTROL_CONTINUE;
 	spfi_writel(spfi, val, SPFI_CONTROL);
-
-	val = spfi_readl(spfi, SPFI_PORT_STATE);
-	if (spi->mode & SPI_CPHA)
-		val |= SPFI_PORT_STATE_CK_PHASE(spi->chip_select);
-	else
-		val &= ~SPFI_PORT_STATE_CK_PHASE(spi->chip_select);
-	if (spi->mode & SPI_CPOL)
-		val |= SPFI_PORT_STATE_CK_POL(spi->chip_select);
-	else
-		val &= ~SPFI_PORT_STATE_CK_POL(spi->chip_select);
-	spfi_writel(spfi, val, SPFI_PORT_STATE);
-
-	spfi_writel(spfi, xfer->len << SPFI_TRANSACTION_TSIZE_SHIFT,
-		    SPFI_TRANSACTION);
 }
 
 static int img_spfi_transfer_one(struct spi_master *master,
@@ -455,25 +499,13 @@ static int img_spfi_transfer_one(struct spi_master *master,
 				 struct spi_transfer *xfer)
 {
 	struct img_spfi *spfi = spi_master_get_devdata(spi->master);
-	bool dma_reset = false;
-	unsigned long flags;
 	int ret;
 
-	/*
-	 * Stop all DMA and reset the controller if the previous transaction
-	 * timed-out and never completed it's DMA.
-	 */
-	spin_lock_irqsave(&spfi->lock, flags);
-	if (spfi->tx_dma_busy || spfi->rx_dma_busy) {
-		dev_err(spfi->dev, "SPI DMA still busy\n");
-		dma_reset = true;
-	}
-	spin_unlock_irqrestore(&spfi->lock, flags);
-
-	if (dma_reset) {
-		dmaengine_terminate_all(spfi->tx_ch);
-		dmaengine_terminate_all(spfi->rx_ch);
-		spfi_reset(spfi);
+	if (xfer->len > SPFI_TRANSACTION_TSIZE_MASK) {
+		dev_err(spfi->dev,
+			"Transfer length (%d) is greater than the max supported (%d)",
+			xfer->len, SPFI_TRANSACTION_TSIZE_MASK);
+		return -EINVAL;
 	}
 
 	img_spfi_config(master, spi, xfer);
@@ -485,17 +517,6 @@ static int img_spfi_transfer_one(struct spi_master *master,
 	return ret;
 }
 
-static void img_spfi_set_cs(struct spi_device *spi, bool enable)
-{
-	struct img_spfi *spfi = spi_master_get_devdata(spi->master);
-	u32 val;
-
-	val = spfi_readl(spfi, SPFI_PORT_STATE);
-	val &= ~(SPFI_PORT_STATE_DEV_SEL_MASK << SPFI_PORT_STATE_DEV_SEL_SHIFT);
-	val |= spi->chip_select << SPFI_PORT_STATE_DEV_SEL_SHIFT;
-	spfi_writel(spfi, val, SPFI_PORT_STATE);
-}
-
 static bool img_spfi_can_dma(struct spi_master *master, struct spi_device *spi,
 			     struct spi_transfer *xfer)
 {
@@ -584,14 +605,17 @@ static int img_spfi_probe(struct platform_device *pdev)
 	master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_TX_DUAL | SPI_RX_DUAL;
 	if (of_property_read_bool(spfi->dev->of_node, "img,supports-quad-mode"))
 		master->mode_bits |= SPI_TX_QUAD | SPI_RX_QUAD;
-	master->num_chipselect = 5;
 	master->dev.of_node = pdev->dev.of_node;
 	master->bits_per_word_mask = SPI_BPW_MASK(32) | SPI_BPW_MASK(8);
-	master->max_speed_hz = clk_get_rate(spfi->spfi_clk);
-	master->min_speed_hz = master->max_speed_hz / 512;
+	master->max_speed_hz = clk_get_rate(spfi->spfi_clk) / 4;
+	master->min_speed_hz = clk_get_rate(spfi->spfi_clk) / 512;
 
-	master->set_cs = img_spfi_set_cs;
+	master->setup = img_spfi_setup;
+	master->cleanup = img_spfi_cleanup;
 	master->transfer_one = img_spfi_transfer_one;
+	master->prepare_message = img_spfi_prepare;
+	master->unprepare_message = img_spfi_unprepare;
+	master->handle_err = img_spfi_handle_err;
 
 	spfi->tx_ch = dma_request_slave_channel(spfi->dev, "tx");
 	spfi->rx_ch = dma_request_slave_channel(spfi->dev, "rx");
diff --git a/drivers/spi/spi-imx.c b/drivers/spi/spi-imx.c
index 6fea4af..f08e812 100644
--- a/drivers/spi/spi-imx.c
+++ b/drivers/spi/spi-imx.c
@@ -370,8 +370,6 @@ static int __maybe_unused mx51_ecspi_config(struct spi_imx_data *spi_imx,
 	if (spi_imx->dma_is_inited) {
 		dma = readl(spi_imx->base + MX51_ECSPI_DMA);
 
-		spi_imx->tx_wml = spi_imx_get_fifosize(spi_imx) / 2;
-		spi_imx->rx_wml = spi_imx_get_fifosize(spi_imx) / 2;
 		spi_imx->rxt_wml = spi_imx_get_fifosize(spi_imx) / 2;
 		rx_wml_cfg = spi_imx->rx_wml << MX51_ECSPI_DMA_RX_WML_OFFSET;
 		tx_wml_cfg = spi_imx->tx_wml << MX51_ECSPI_DMA_TX_WML_OFFSET;
@@ -868,6 +866,8 @@ static int spi_imx_sdma_init(struct device *dev, struct spi_imx_data *spi_imx,
 	master->max_dma_len = MAX_SDMA_BD_BYTES;
 	spi_imx->bitbang.master->flags = SPI_MASTER_MUST_RX |
 					 SPI_MASTER_MUST_TX;
+	spi_imx->tx_wml = spi_imx_get_fifosize(spi_imx) / 2;
+	spi_imx->rx_wml = spi_imx_get_fifosize(spi_imx) / 2;
 	spi_imx->dma_is_inited = 1;
 
 	return 0;
@@ -903,7 +903,7 @@ static int spi_imx_dma_transfer(struct spi_imx_data *spi_imx,
 
 	if (tx) {
 		desc_tx = dmaengine_prep_slave_sg(master->dma_tx,
-					tx->sgl, tx->nents, DMA_TO_DEVICE,
+					tx->sgl, tx->nents, DMA_MEM_TO_DEV,
 					DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
 		if (!desc_tx)
 			goto no_dma;
@@ -915,7 +915,7 @@ static int spi_imx_dma_transfer(struct spi_imx_data *spi_imx,
 
 	if (rx) {
 		desc_rx = dmaengine_prep_slave_sg(master->dma_rx,
-					rx->sgl, rx->nents, DMA_FROM_DEVICE,
+					rx->sgl, rx->nents, DMA_DEV_TO_MEM,
 					DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
 		if (!desc_rx)
 			goto no_dma;
diff --git a/drivers/spi/spi-mpc512x-psc.c b/drivers/spi/spi-mpc512x-psc.c
index ecae0d4..965d2bd 100644
--- a/drivers/spi/spi-mpc512x-psc.c
+++ b/drivers/spi/spi-mpc512x-psc.c
@@ -588,7 +588,7 @@ static int mpc512x_psc_spi_of_remove(struct platform_device *op)
 	return mpc512x_psc_spi_do_remove(&op->dev);
 }
 
-static struct of_device_id mpc512x_psc_spi_of_match[] = {
+static const struct of_device_id mpc512x_psc_spi_of_match[] = {
 	{ .compatible = "fsl,mpc5121-psc-spi", },
 	{},
 };
diff --git a/drivers/spi/spi-octeon.c b/drivers/spi/spi-octeon.c
index b283d53..e99d6a9 100644
--- a/drivers/spi/spi-octeon.c
+++ b/drivers/spi/spi-octeon.c
@@ -238,7 +238,7 @@ static int octeon_spi_remove(struct platform_device *pdev)
 	return 0;
 }
 
-static struct of_device_id octeon_spi_match[] = {
+static const struct of_device_id octeon_spi_match[] = {
 	{ .compatible = "cavium,octeon-3010-spi", },
 	{},
 };
diff --git a/drivers/spi/spi-omap-100k.c b/drivers/spi/spi-omap-100k.c
index d890d30..35b332d 100644
--- a/drivers/spi/spi-omap-100k.c
+++ b/drivers/spi/spi-omap-100k.c
@@ -24,6 +24,7 @@
 #include <linux/device.h>
 #include <linux/delay.h>
 #include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
 #include <linux/err.h>
 #include <linux/clk.h>
 #include <linux/io.h>
@@ -294,16 +295,6 @@ static int omap1_spi100k_setup(struct spi_device *spi)
 	return ret;
 }
 
-static int omap1_spi100k_prepare_hardware(struct spi_master *master)
-{
-	struct omap1_spi100k *spi100k = spi_master_get_devdata(master);
-
-	clk_prepare_enable(spi100k->ick);
-	clk_prepare_enable(spi100k->fck);
-
-	return 0;
-}
-
 static int omap1_spi100k_transfer_one_message(struct spi_master *master,
 					      struct spi_message *m)
 {
@@ -372,16 +363,6 @@ static int omap1_spi100k_transfer_one_message(struct spi_master *master,
 	return status;
 }
 
-static int omap1_spi100k_unprepare_hardware(struct spi_master *master)
-{
-	struct omap1_spi100k *spi100k = spi_master_get_devdata(master);
-
-	clk_disable_unprepare(spi100k->ick);
-	clk_disable_unprepare(spi100k->fck);
-
-	return 0;
-}
-
 static int omap1_spi100k_probe(struct platform_device *pdev)
 {
 	struct spi_master       *master;
@@ -402,14 +383,12 @@ static int omap1_spi100k_probe(struct platform_device *pdev)
 
 	master->setup = omap1_spi100k_setup;
 	master->transfer_one_message = omap1_spi100k_transfer_one_message;
-	master->prepare_transfer_hardware = omap1_spi100k_prepare_hardware;
-	master->unprepare_transfer_hardware = omap1_spi100k_unprepare_hardware;
-	master->cleanup = NULL;
 	master->num_chipselect = 2;
 	master->mode_bits = MODEBITS;
 	master->bits_per_word_mask = SPI_BPW_RANGE_MASK(4, 32);
 	master->min_speed_hz = OMAP1_SPI100K_MAX_FREQ/(1<<16);
 	master->max_speed_hz = OMAP1_SPI100K_MAX_FREQ;
+	master->auto_runtime_pm = true;
 
 	spi100k = spi_master_get_devdata(master);
 
@@ -434,22 +413,96 @@ static int omap1_spi100k_probe(struct platform_device *pdev)
 		goto err;
 	}
 
+	status = clk_prepare_enable(spi100k->ick);
+	if (status != 0) {
+		dev_err(&pdev->dev, "failed to enable ick: %d\n", status);
+		goto err;
+	}
+
+	status = clk_prepare_enable(spi100k->fck);
+	if (status != 0) {
+		dev_err(&pdev->dev, "failed to enable fck: %d\n", status);
+		goto err_ick;
+	}
+
+	pm_runtime_enable(&pdev->dev);
+	pm_runtime_set_active(&pdev->dev);
+
 	status = devm_spi_register_master(&pdev->dev, master);
 	if (status < 0)
-		goto err;
+		goto err_fck;
 
 	return status;
 
+err_fck:
+	clk_disable_unprepare(spi100k->fck);
+err_ick:
+	clk_disable_unprepare(spi100k->ick);
 err:
 	spi_master_put(master);
 	return status;
 }
 
+static int omap1_spi100k_remove(struct platform_device *pdev)
+{
+	struct spi_master *master = spi_master_get(platform_get_drvdata(pdev));
+	struct omap1_spi100k *spi100k = spi_master_get_devdata(master);
+
+	pm_runtime_disable(&pdev->dev);
+
+	clk_disable_unprepare(spi100k->fck);
+	clk_disable_unprepare(spi100k->ick);
+
+	return 0;
+}
+
+#ifdef CONFIG_PM
+static int omap1_spi100k_runtime_suspend(struct device *dev)
+{
+	struct spi_master *master = spi_master_get(dev_get_drvdata(dev));
+	struct omap1_spi100k *spi100k = spi_master_get_devdata(master);
+
+	clk_disable_unprepare(spi100k->ick);
+	clk_disable_unprepare(spi100k->fck);
+
+	return 0;
+}
+
+static int omap1_spi100k_runtime_resume(struct device *dev)
+{
+	struct spi_master *master = spi_master_get(dev_get_drvdata(dev));
+	struct omap1_spi100k *spi100k = spi_master_get_devdata(master);
+	int ret;
+
+	ret = clk_prepare_enable(spi100k->ick);
+	if (ret != 0) {
+		dev_err(dev, "Failed to enable ick: %d\n", ret);
+		return ret;
+	}
+
+	ret = clk_prepare_enable(spi100k->fck);
+	if (ret != 0) {
+		dev_err(dev, "Failed to enable fck: %d\n", ret);
+		clk_disable_unprepare(spi100k->ick);
+		return ret;
+	}
+
+	return 0;
+}
+#endif
+
+static const struct dev_pm_ops omap1_spi100k_pm = {
+	SET_RUNTIME_PM_OPS(omap1_spi100k_runtime_suspend,
+			   omap1_spi100k_runtime_resume, NULL)
+};
+
 static struct platform_driver omap1_spi100k_driver = {
 	.driver = {
 		.name		= "omap1_spi100k",
+		.pm		= &omap1_spi100k_pm,
 	},
 	.probe		= omap1_spi100k_probe,
+	.remove		= omap1_spi100k_remove,
 };
 
 module_platform_driver(omap1_spi100k_driver);
diff --git a/drivers/spi/spi-omap-uwire.c b/drivers/spi/spi-omap-uwire.c
index 3c08444..55576db 100644
--- a/drivers/spi/spi-omap-uwire.c
+++ b/drivers/spi/spi-omap-uwire.c
@@ -44,7 +44,6 @@
 #include <linux/module.h>
 #include <linux/io.h>
 
-#include <asm/irq.h>
 #include <mach/hardware.h>
 #include <asm/mach-types.h>
 
diff --git a/drivers/spi/spi-pl022.c b/drivers/spi/spi-pl022.c
index 89ca162..94af806 100644
--- a/drivers/spi/spi-pl022.c
+++ b/drivers/spi/spi-pl022.c
@@ -285,7 +285,12 @@
  */
 #define DEFAULT_SSP_REG_IMSC  0x0UL
 #define DISABLE_ALL_INTERRUPTS DEFAULT_SSP_REG_IMSC
-#define ENABLE_ALL_INTERRUPTS (~DEFAULT_SSP_REG_IMSC)
+#define ENABLE_ALL_INTERRUPTS ( \
+	SSP_IMSC_MASK_RORIM | \
+	SSP_IMSC_MASK_RTIM | \
+	SSP_IMSC_MASK_RXIM | \
+	SSP_IMSC_MASK_TXIM \
+)
 
 #define CLEAR_ALL_INTERRUPTS  0x3
 
@@ -534,12 +539,12 @@ static void giveback(struct pl022 *pl022)
 	pl022->cur_msg = NULL;
 	pl022->cur_transfer = NULL;
 	pl022->cur_chip = NULL;
-	spi_finalize_current_message(pl022->master);
 
 	/* disable the SPI/SSP operation */
 	writew((readw(SSP_CR1(pl022->virtbase)) &
 		(~SSP_CR1_MASK_SSE)), SSP_CR1(pl022->virtbase));
 
+	spi_finalize_current_message(pl022->master);
 }
 
 /**
@@ -1251,7 +1256,6 @@ static irqreturn_t pl022_interrupt_handler(int irq, void *dev_id)
 	struct pl022 *pl022 = dev_id;
 	struct spi_message *msg = pl022->cur_msg;
 	u16 irq_status = 0;
-	u16 flag = 0;
 
 	if (unlikely(!msg)) {
 		dev_err(&pl022->adev->dev,
@@ -1280,9 +1284,6 @@ static irqreturn_t pl022_interrupt_handler(int irq, void *dev_id)
 		if (readw(SSP_SR(pl022->virtbase)) & SSP_SR_MASK_RFF)
 			dev_err(&pl022->adev->dev,
 				"RXFIFO is full\n");
-		if (readw(SSP_SR(pl022->virtbase)) & SSP_SR_MASK_TNF)
-			dev_err(&pl022->adev->dev,
-				"TXFIFO is full\n");
 
 		/*
 		 * Disable and clear interrupts, disable SSP,
@@ -1303,8 +1304,7 @@ static irqreturn_t pl022_interrupt_handler(int irq, void *dev_id)
 
 	readwriter(pl022);
 
-	if ((pl022->tx == pl022->tx_end) && (flag == 0)) {
-		flag = 1;
+	if (pl022->tx == pl022->tx_end) {
 		/* Disable Transmit interrupt, enable receive interrupt */
 		writew((readw(SSP_IMSC(pl022->virtbase)) &
 		       ~SSP_IMSC_MASK_TXIM) | SSP_IMSC_MASK_RXIM,
diff --git a/drivers/spi/spi-pxa2xx.c b/drivers/spi/spi-pxa2xx.c
index 6f72ad0..e3223ac 100644
--- a/drivers/spi/spi-pxa2xx.c
+++ b/drivers/spi/spi-pxa2xx.c
@@ -20,6 +20,7 @@
 #include <linux/errno.h>
 #include <linux/err.h>
 #include <linux/interrupt.h>
+#include <linux/kernel.h>
 #include <linux/platform_device.h>
 #include <linux/spi/pxa2xx_spi.h>
 #include <linux/spi/spi.h>
@@ -30,10 +31,6 @@
 #include <linux/pm_runtime.h>
 #include <linux/acpi.h>
 
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/delay.h>
-
 #include "spi-pxa2xx.h"
 
 MODULE_AUTHOR("Stephen Street");
@@ -67,54 +64,6 @@ MODULE_ALIAS("platform:pxa2xx-spi");
 #define LPSS_TX_LOTHRESH_DFLT	160
 #define LPSS_TX_HITHRESH_DFLT	224
 
-struct quark_spi_rate {
-	u32 bitrate;
-	u32 dds_clk_rate;
-	u32 clk_div;
-};
-
-/*
- * 'rate', 'dds', 'clk_div' lookup table, which is defined in
- * the Quark SPI datasheet.
- */
-static const struct quark_spi_rate quark_spi_rate_table[] = {
-/*	bitrate,	dds_clk_rate,	clk_div */
-	{50000000,	0x800000,	0},
-	{40000000,	0x666666,	0},
-	{25000000,	0x400000,	0},
-	{20000000,	0x666666,	1},
-	{16667000,	0x800000,	2},
-	{13333000,	0x666666,	2},
-	{12500000,	0x200000,	0},
-	{10000000,	0x800000,	4},
-	{8000000,	0x666666,	4},
-	{6250000,	0x400000,	3},
-	{5000000,	0x400000,	4},
-	{4000000,	0x666666,	9},
-	{3125000,	0x80000,	0},
-	{2500000,	0x400000,	9},
-	{2000000,	0x666666,	19},
-	{1563000,	0x40000,	0},
-	{1250000,	0x200000,	9},
-	{1000000,	0x400000,	24},
-	{800000,	0x666666,	49},
-	{781250,	0x20000,	0},
-	{625000,	0x200000,	19},
-	{500000,	0x400000,	49},
-	{400000,	0x666666,	99},
-	{390625,	0x10000,	0},
-	{250000,	0x400000,	99},
-	{200000,	0x666666,	199},
-	{195313,	0x8000,		0},
-	{125000,	0x100000,	49},
-	{100000,	0x200000,	124},
-	{50000,		0x100000,	124},
-	{25000,		0x80000,	124},
-	{10016,		0x20000,	77},
-	{5040,		0x20000,	154},
-	{1002,		0x8000,		194},
-};
-
 /* Offset from drv_data->lpss_base */
 #define GENERAL_REG		0x08
 #define GENERAL_REG_RXTO_HOLDOFF_DISABLE BIT(24)
@@ -701,25 +650,124 @@ static irqreturn_t ssp_int(int irq, void *dev_id)
 }
 
 /*
- * The Quark SPI data sheet gives a table, and for the given 'rate',
- * the 'dds' and 'clk_div' can be found in the table.
+ * The Quark SPI has an additional 24 bit register (DDS_CLK_RATE) to multiply
+ * input frequency by fractions of 2^24. It also has a divider by 5.
+ *
+ * There are formulas to get baud rate value for given input frequency and
+ * divider parameters, such as DDS_CLK_RATE and SCR:
+ *
+ * Fsys = 200MHz
+ *
+ * Fssp = Fsys * DDS_CLK_RATE / 2^24			(1)
+ * Baud rate = Fsclk = Fssp / (2 * (SCR + 1))		(2)
+ *
+ * DDS_CLK_RATE either 2^n or 2^n / 5.
+ * SCR is in range 0 .. 255
+ *
+ * Divisor = 5^i * 2^j * 2 * k
+ *       i = [0, 1]      i = 1 iff j = 0 or j > 3
+ *       j = [0, 23]     j = 0 iff i = 1
+ *       k = [1, 256]
+ * Special case: j = 0, i = 1: Divisor = 2 / 5
+ *
+ * Accordingly to the specification the recommended values for DDS_CLK_RATE
+ * are:
+ *	Case 1:		2^n, n = [0, 23]
+ *	Case 2:		2^24 * 2 / 5 (0x666666)
+ *	Case 3:		less than or equal to 2^24 / 5 / 16 (0x33333)
+ *
+ * In all cases the lowest possible value is better.
+ *
+ * The function calculates parameters for all cases and chooses the one closest
+ * to the asked baud rate.
  */
-static u32 quark_x1000_set_clk_regvals(u32 rate, u32 *dds, u32 *clk_div)
+static unsigned int quark_x1000_get_clk_div(int rate, u32 *dds)
 {
-	unsigned int i;
-
-	for (i = 0; i < ARRAY_SIZE(quark_spi_rate_table); i++) {
-		if (rate >= quark_spi_rate_table[i].bitrate) {
-			*dds = quark_spi_rate_table[i].dds_clk_rate;
-			*clk_div = quark_spi_rate_table[i].clk_div;
-			return quark_spi_rate_table[i].bitrate;
+	unsigned long xtal = 200000000;
+	unsigned long fref = xtal / 2;		/* mandatory division by 2,
+						   see (2) */
+						/* case 3 */
+	unsigned long fref1 = fref / 2;		/* case 1 */
+	unsigned long fref2 = fref * 2 / 5;	/* case 2 */
+	unsigned long scale;
+	unsigned long q, q1, q2;
+	long r, r1, r2;
+	u32 mul;
+
+	/* Case 1 */
+
+	/* Set initial value for DDS_CLK_RATE */
+	mul = (1 << 24) >> 1;
+
+	/* Calculate initial quot */
+	q1 = DIV_ROUND_CLOSEST(fref1, rate);
+
+	/* Scale q1 if it's too big */
+	if (q1 > 256) {
+		/* Scale q1 to range [1, 512] */
+		scale = fls_long(q1 - 1);
+		if (scale > 9) {
+			q1 >>= scale - 9;
+			mul >>= scale - 9;
 		}
+
+		/* Round the result if we have a remainder */
+		q1 += q1 & 1;
 	}
 
-	*dds = quark_spi_rate_table[i-1].dds_clk_rate;
-	*clk_div = quark_spi_rate_table[i-1].clk_div;
+	/* Decrease DDS_CLK_RATE as much as we can without loss in precision */
+	scale = __ffs(q1);
+	q1 >>= scale;
+	mul >>= scale;
+
+	/* Get the remainder */
+	r1 = abs(fref1 / (1 << (24 - fls_long(mul))) / q1 - rate);
+
+	/* Case 2 */
+
+	q2 = DIV_ROUND_CLOSEST(fref2, rate);
+	r2 = abs(fref2 / q2 - rate);
 
-	return quark_spi_rate_table[i-1].bitrate;
+	/*
+	 * Choose the best between two: less remainder we have the better. We
+	 * can't go case 2 if q2 is greater than 256 since SCR register can
+	 * hold only values 0 .. 255.
+	 */
+	if (r2 >= r1 || q2 > 256) {
+		/* case 1 is better */
+		r = r1;
+		q = q1;
+	} else {
+		/* case 2 is better */
+		r = r2;
+		q = q2;
+		mul = (1 << 24) * 2 / 5;
+	}
+
+	/* Check case 3 only If the divisor is big enough */
+	if (fref / rate >= 80) {
+		u64 fssp;
+		u32 m;
+
+		/* Calculate initial quot */
+		q1 = DIV_ROUND_CLOSEST(fref, rate);
+		m = (1 << 24) / q1;
+
+		/* Get the remainder */
+		fssp = (u64)fref * m;
+		do_div(fssp, 1 << 24);
+		r1 = abs(fssp - rate);
+
+		/* Choose this one if it suits better */
+		if (r1 < r) {
+			/* case 3 is better */
+			q = 1;
+			mul = m;
+		}
+	}
+
+	*dds = mul;
+	return q - 1;
 }
 
 static unsigned int ssp_get_clk_div(struct driver_data *drv_data, int rate)
@@ -730,23 +778,25 @@ static unsigned int ssp_get_clk_div(struct driver_data *drv_data, int rate)
 	rate = min_t(int, ssp_clk, rate);
 
 	if (ssp->type == PXA25x_SSP || ssp->type == CE4100_SSP)
-		return ((ssp_clk / (2 * rate) - 1) & 0xff) << 8;
+		return (ssp_clk / (2 * rate) - 1) & 0xff;
 	else
-		return ((ssp_clk / rate - 1) & 0xfff) << 8;
+		return (ssp_clk / rate - 1) & 0xfff;
 }
 
 static unsigned int pxa2xx_ssp_get_clk_div(struct driver_data *drv_data,
 					   struct chip_data *chip, int rate)
 {
-	u32 clk_div;
+	unsigned int clk_div;
 
 	switch (drv_data->ssp_type) {
 	case QUARK_X1000_SSP:
-		quark_x1000_set_clk_regvals(rate, &chip->dds_rate, &clk_div);
-		return clk_div << 8;
+		clk_div = quark_x1000_get_clk_div(rate, &chip->dds_rate);
+		break;
 	default:
-		return ssp_get_clk_div(drv_data, rate);
+		clk_div = ssp_get_clk_div(drv_data, rate);
+		break;
 	}
+	return clk_div << 8;
 }
 
 static void pump_transfers(unsigned long data)
diff --git a/drivers/spi/spi-qup.c b/drivers/spi/spi-qup.c
index ff9cdbd..810a7fa 100644
--- a/drivers/spi/spi-qup.c
+++ b/drivers/spi/spi-qup.c
@@ -22,6 +22,8 @@
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
 #include <linux/spi/spi.h>
+#include <linux/dmaengine.h>
+#include <linux/dma-mapping.h>
 
 #define QUP_CONFIG			0x0000
 #define QUP_STATE			0x0004
@@ -116,6 +118,8 @@
 
 #define SPI_NUM_CHIPSELECTS		4
 
+#define SPI_MAX_DMA_XFER		(SZ_64K - 64)
+
 /* high speed mode is when bus rate is greater then 26MHz */
 #define SPI_HS_MIN_RATE			26000000
 #define SPI_MAX_RATE			50000000
@@ -140,9 +144,14 @@ struct spi_qup {
 	struct completion	done;
 	int			error;
 	int			w_size;	/* bytes per SPI word */
+	int			n_words;
 	int			tx_bytes;
 	int			rx_bytes;
 	int			qup_v1;
+
+	int			use_dma;
+	struct dma_slave_config	rx_conf;
+	struct dma_slave_config	tx_conf;
 };
 
 
@@ -198,7 +207,6 @@ static int spi_qup_set_state(struct spi_qup *controller, u32 state)
 	return 0;
 }
 
-
 static void spi_qup_fifo_read(struct spi_qup *controller,
 			    struct spi_transfer *xfer)
 {
@@ -266,6 +274,107 @@ static void spi_qup_fifo_write(struct spi_qup *controller,
 	}
 }
 
+static void spi_qup_dma_done(void *data)
+{
+	struct spi_qup *qup = data;
+
+	complete(&qup->done);
+}
+
+static int spi_qup_prep_sg(struct spi_master *master, struct spi_transfer *xfer,
+			   enum dma_transfer_direction dir,
+			   dma_async_tx_callback callback)
+{
+	struct spi_qup *qup = spi_master_get_devdata(master);
+	unsigned long flags = DMA_PREP_INTERRUPT | DMA_PREP_FENCE;
+	struct dma_async_tx_descriptor *desc;
+	struct scatterlist *sgl;
+	struct dma_chan *chan;
+	dma_cookie_t cookie;
+	unsigned int nents;
+
+	if (dir == DMA_MEM_TO_DEV) {
+		chan = master->dma_tx;
+		nents = xfer->tx_sg.nents;
+		sgl = xfer->tx_sg.sgl;
+	} else {
+		chan = master->dma_rx;
+		nents = xfer->rx_sg.nents;
+		sgl = xfer->rx_sg.sgl;
+	}
+
+	desc = dmaengine_prep_slave_sg(chan, sgl, nents, dir, flags);
+	if (!desc)
+		return -EINVAL;
+
+	desc->callback = callback;
+	desc->callback_param = qup;
+
+	cookie = dmaengine_submit(desc);
+
+	return dma_submit_error(cookie);
+}
+
+static void spi_qup_dma_terminate(struct spi_master *master,
+				  struct spi_transfer *xfer)
+{
+	if (xfer->tx_buf)
+		dmaengine_terminate_all(master->dma_tx);
+	if (xfer->rx_buf)
+		dmaengine_terminate_all(master->dma_rx);
+}
+
+static int spi_qup_do_dma(struct spi_master *master, struct spi_transfer *xfer)
+{
+	dma_async_tx_callback rx_done = NULL, tx_done = NULL;
+	int ret;
+
+	if (xfer->rx_buf)
+		rx_done = spi_qup_dma_done;
+	else if (xfer->tx_buf)
+		tx_done = spi_qup_dma_done;
+
+	if (xfer->rx_buf) {
+		ret = spi_qup_prep_sg(master, xfer, DMA_DEV_TO_MEM, rx_done);
+		if (ret)
+			return ret;
+
+		dma_async_issue_pending(master->dma_rx);
+	}
+
+	if (xfer->tx_buf) {
+		ret = spi_qup_prep_sg(master, xfer, DMA_MEM_TO_DEV, tx_done);
+		if (ret)
+			return ret;
+
+		dma_async_issue_pending(master->dma_tx);
+	}
+
+	return 0;
+}
+
+static int spi_qup_do_pio(struct spi_master *master, struct spi_transfer *xfer)
+{
+	struct spi_qup *qup = spi_master_get_devdata(master);
+	int ret;
+
+	ret = spi_qup_set_state(qup, QUP_STATE_RUN);
+	if (ret) {
+		dev_warn(qup->dev, "cannot set RUN state\n");
+		return ret;
+	}
+
+	ret = spi_qup_set_state(qup, QUP_STATE_PAUSE);
+	if (ret) {
+		dev_warn(qup->dev, "cannot set PAUSE state\n");
+		return ret;
+	}
+
+	spi_qup_fifo_write(qup, xfer);
+
+	return 0;
+}
+
 static irqreturn_t spi_qup_qup_irq(int irq, void *dev_id)
 {
 	struct spi_qup *controller = dev_id;
@@ -315,11 +424,13 @@ static irqreturn_t spi_qup_qup_irq(int irq, void *dev_id)
 		error = -EIO;
 	}
 
-	if (opflags & QUP_OP_IN_SERVICE_FLAG)
-		spi_qup_fifo_read(controller, xfer);
+	if (!controller->use_dma) {
+		if (opflags & QUP_OP_IN_SERVICE_FLAG)
+			spi_qup_fifo_read(controller, xfer);
 
-	if (opflags & QUP_OP_OUT_SERVICE_FLAG)
-		spi_qup_fifo_write(controller, xfer);
+		if (opflags & QUP_OP_OUT_SERVICE_FLAG)
+			spi_qup_fifo_write(controller, xfer);
+	}
 
 	spin_lock_irqsave(&controller->lock, flags);
 	controller->error = error;
@@ -332,13 +443,35 @@ static irqreturn_t spi_qup_qup_irq(int irq, void *dev_id)
 	return IRQ_HANDLED;
 }
 
+static u32
+spi_qup_get_mode(struct spi_master *master, struct spi_transfer *xfer)
+{
+	struct spi_qup *qup = spi_master_get_devdata(master);
+	u32 mode;
+
+	qup->w_size = 4;
+
+	if (xfer->bits_per_word <= 8)
+		qup->w_size = 1;
+	else if (xfer->bits_per_word <= 16)
+		qup->w_size = 2;
+
+	qup->n_words = xfer->len / qup->w_size;
+
+	if (qup->n_words <= (qup->in_fifo_sz / sizeof(u32)))
+		mode = QUP_IO_M_MODE_FIFO;
+	else
+		mode = QUP_IO_M_MODE_BLOCK;
+
+	return mode;
+}
 
 /* set clock freq ... bits per word */
 static int spi_qup_io_config(struct spi_device *spi, struct spi_transfer *xfer)
 {
 	struct spi_qup *controller = spi_master_get_devdata(spi->master);
 	u32 config, iomode, mode, control;
-	int ret, n_words, w_size;
+	int ret, n_words;
 
 	if (spi->mode & SPI_LOOP && xfer->len > controller->in_fifo_sz) {
 		dev_err(controller->dev, "too big size for loopback %d > %d\n",
@@ -358,35 +491,54 @@ static int spi_qup_io_config(struct spi_device *spi, struct spi_transfer *xfer)
 		return -EIO;
 	}
 
-	w_size = 4;
-	if (xfer->bits_per_word <= 8)
-		w_size = 1;
-	else if (xfer->bits_per_word <= 16)
-		w_size = 2;
+	mode = spi_qup_get_mode(spi->master, xfer);
+	n_words = controller->n_words;
 
-	n_words = xfer->len / w_size;
-	controller->w_size = w_size;
-
-	if (n_words <= (controller->in_fifo_sz / sizeof(u32))) {
-		mode = QUP_IO_M_MODE_FIFO;
+	if (mode == QUP_IO_M_MODE_FIFO) {
 		writel_relaxed(n_words, controller->base + QUP_MX_READ_CNT);
 		writel_relaxed(n_words, controller->base + QUP_MX_WRITE_CNT);
 		/* must be zero for FIFO */
 		writel_relaxed(0, controller->base + QUP_MX_INPUT_CNT);
 		writel_relaxed(0, controller->base + QUP_MX_OUTPUT_CNT);
-	} else {
-		mode = QUP_IO_M_MODE_BLOCK;
+	} else if (!controller->use_dma) {
 		writel_relaxed(n_words, controller->base + QUP_MX_INPUT_CNT);
 		writel_relaxed(n_words, controller->base + QUP_MX_OUTPUT_CNT);
 		/* must be zero for BLOCK and BAM */
 		writel_relaxed(0, controller->base + QUP_MX_READ_CNT);
 		writel_relaxed(0, controller->base + QUP_MX_WRITE_CNT);
+	} else {
+		mode = QUP_IO_M_MODE_BAM;
+		writel_relaxed(0, controller->base + QUP_MX_READ_CNT);
+		writel_relaxed(0, controller->base + QUP_MX_WRITE_CNT);
+
+		if (!controller->qup_v1) {
+			void __iomem *input_cnt;
+
+			input_cnt = controller->base + QUP_MX_INPUT_CNT;
+			/*
+			 * for DMA transfers, both QUP_MX_INPUT_CNT and
+			 * QUP_MX_OUTPUT_CNT must be zero to all cases but one.
+			 * That case is a non-balanced transfer when there is
+			 * only a rx_buf.
+			 */
+			if (xfer->tx_buf)
+				writel_relaxed(0, input_cnt);
+			else
+				writel_relaxed(n_words, input_cnt);
+
+			writel_relaxed(0, controller->base + QUP_MX_OUTPUT_CNT);
+		}
 	}
 
 	iomode = readl_relaxed(controller->base + QUP_IO_M_MODES);
 	/* Set input and output transfer mode */
 	iomode &= ~(QUP_IO_M_INPUT_MODE_MASK | QUP_IO_M_OUTPUT_MODE_MASK);
-	iomode &= ~(QUP_IO_M_PACK_EN | QUP_IO_M_UNPACK_EN);
+
+	if (!controller->use_dma)
+		iomode &= ~(QUP_IO_M_PACK_EN | QUP_IO_M_UNPACK_EN);
+	else
+		iomode |= QUP_IO_M_PACK_EN | QUP_IO_M_UNPACK_EN;
+
 	iomode |= (mode << QUP_IO_M_OUTPUT_MODE_MASK_SHIFT);
 	iomode |= (mode << QUP_IO_M_INPUT_MODE_MASK_SHIFT);
 
@@ -428,11 +580,31 @@ static int spi_qup_io_config(struct spi_device *spi, struct spi_transfer *xfer)
 	config &= ~(QUP_CONFIG_NO_INPUT | QUP_CONFIG_NO_OUTPUT | QUP_CONFIG_N);
 	config |= xfer->bits_per_word - 1;
 	config |= QUP_CONFIG_SPI_MODE;
+
+	if (controller->use_dma) {
+		if (!xfer->tx_buf)
+			config |= QUP_CONFIG_NO_OUTPUT;
+		if (!xfer->rx_buf)
+			config |= QUP_CONFIG_NO_INPUT;
+	}
+
 	writel_relaxed(config, controller->base + QUP_CONFIG);
 
 	/* only write to OPERATIONAL_MASK when register is present */
-	if (!controller->qup_v1)
-		writel_relaxed(0, controller->base + QUP_OPERATIONAL_MASK);
+	if (!controller->qup_v1) {
+		u32 mask = 0;
+
+		/*
+		 * mask INPUT and OUTPUT service flags to prevent IRQs on FIFO
+		 * status change in BAM mode
+		 */
+
+		if (mode == QUP_IO_M_MODE_BAM)
+			mask = QUP_OP_IN_SERVICE_FLAG | QUP_OP_OUT_SERVICE_FLAG;
+
+		writel_relaxed(mask, controller->base + QUP_OPERATIONAL_MASK);
+	}
+
 	return 0;
 }
 
@@ -461,17 +633,13 @@ static int spi_qup_transfer_one(struct spi_master *master,
 	controller->tx_bytes = 0;
 	spin_unlock_irqrestore(&controller->lock, flags);
 
-	if (spi_qup_set_state(controller, QUP_STATE_RUN)) {
-		dev_warn(controller->dev, "cannot set RUN state\n");
-		goto exit;
-	}
+	if (controller->use_dma)
+		ret = spi_qup_do_dma(master, xfer);
+	else
+		ret = spi_qup_do_pio(master, xfer);
 
-	if (spi_qup_set_state(controller, QUP_STATE_PAUSE)) {
-		dev_warn(controller->dev, "cannot set PAUSE state\n");
+	if (ret)
 		goto exit;
-	}
-
-	spi_qup_fifo_write(controller, xfer);
 
 	if (spi_qup_set_state(controller, QUP_STATE_RUN)) {
 		dev_warn(controller->dev, "cannot set EXECUTE state\n");
@@ -480,6 +648,7 @@ static int spi_qup_transfer_one(struct spi_master *master,
 
 	if (!wait_for_completion_timeout(&controller->done, timeout))
 		ret = -ETIMEDOUT;
+
 exit:
 	spi_qup_set_state(controller, QUP_STATE_RESET);
 	spin_lock_irqsave(&controller->lock, flags);
@@ -487,6 +656,97 @@ exit:
 	if (!ret)
 		ret = controller->error;
 	spin_unlock_irqrestore(&controller->lock, flags);
+
+	if (ret && controller->use_dma)
+		spi_qup_dma_terminate(master, xfer);
+
+	return ret;
+}
+
+static bool spi_qup_can_dma(struct spi_master *master, struct spi_device *spi,
+			    struct spi_transfer *xfer)
+{
+	struct spi_qup *qup = spi_master_get_devdata(master);
+	size_t dma_align = dma_get_cache_alignment();
+	u32 mode;
+
+	qup->use_dma = 0;
+
+	if (xfer->rx_buf && (xfer->len % qup->in_blk_sz ||
+	    IS_ERR_OR_NULL(master->dma_rx) ||
+	    !IS_ALIGNED((size_t)xfer->rx_buf, dma_align)))
+		return false;
+
+	if (xfer->tx_buf && (xfer->len % qup->out_blk_sz ||
+	    IS_ERR_OR_NULL(master->dma_tx) ||
+	    !IS_ALIGNED((size_t)xfer->tx_buf, dma_align)))
+		return false;
+
+	mode = spi_qup_get_mode(master, xfer);
+	if (mode == QUP_IO_M_MODE_FIFO)
+		return false;
+
+	qup->use_dma = 1;
+
+	return true;
+}
+
+static void spi_qup_release_dma(struct spi_master *master)
+{
+	if (!IS_ERR_OR_NULL(master->dma_rx))
+		dma_release_channel(master->dma_rx);
+	if (!IS_ERR_OR_NULL(master->dma_tx))
+		dma_release_channel(master->dma_tx);
+}
+
+static int spi_qup_init_dma(struct spi_master *master, resource_size_t base)
+{
+	struct spi_qup *spi = spi_master_get_devdata(master);
+	struct dma_slave_config *rx_conf = &spi->rx_conf,
+				*tx_conf = &spi->tx_conf;
+	struct device *dev = spi->dev;
+	int ret;
+
+	/* allocate dma resources, if available */
+	master->dma_rx = dma_request_slave_channel_reason(dev, "rx");
+	if (IS_ERR(master->dma_rx))
+		return PTR_ERR(master->dma_rx);
+
+	master->dma_tx = dma_request_slave_channel_reason(dev, "tx");
+	if (IS_ERR(master->dma_tx)) {
+		ret = PTR_ERR(master->dma_tx);
+		goto err_tx;
+	}
+
+	/* set DMA parameters */
+	rx_conf->direction = DMA_DEV_TO_MEM;
+	rx_conf->device_fc = 1;
+	rx_conf->src_addr = base + QUP_INPUT_FIFO;
+	rx_conf->src_maxburst = spi->in_blk_sz;
+
+	tx_conf->direction = DMA_MEM_TO_DEV;
+	tx_conf->device_fc = 1;
+	tx_conf->dst_addr = base + QUP_OUTPUT_FIFO;
+	tx_conf->dst_maxburst = spi->out_blk_sz;
+
+	ret = dmaengine_slave_config(master->dma_rx, rx_conf);
+	if (ret) {
+		dev_err(dev, "failed to configure RX channel\n");
+		goto err;
+	}
+
+	ret = dmaengine_slave_config(master->dma_tx, tx_conf);
+	if (ret) {
+		dev_err(dev, "failed to configure TX channel\n");
+		goto err;
+	}
+
+	return 0;
+
+err:
+	dma_release_channel(master->dma_tx);
+err_tx:
+	dma_release_channel(master->dma_rx);
 	return ret;
 }
 
@@ -498,7 +758,7 @@ static int spi_qup_probe(struct platform_device *pdev)
 	struct resource *res;
 	struct device *dev;
 	void __iomem *base;
-	u32 max_freq, iomode;
+	u32 max_freq, iomode, num_cs;
 	int ret, irq, size;
 
 	dev = &pdev->dev;
@@ -550,10 +810,11 @@ static int spi_qup_probe(struct platform_device *pdev)
 	}
 
 	/* use num-cs unless not present or out of range */
-	if (of_property_read_u16(dev->of_node, "num-cs",
-			&master->num_chipselect) ||
-			(master->num_chipselect > SPI_NUM_CHIPSELECTS))
+	if (of_property_read_u32(dev->of_node, "num-cs", &num_cs) ||
+	    num_cs > SPI_NUM_CHIPSELECTS)
 		master->num_chipselect = SPI_NUM_CHIPSELECTS;
+	else
+		master->num_chipselect = num_cs;
 
 	master->bus_num = pdev->id;
 	master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_CS_HIGH | SPI_LOOP;
@@ -562,6 +823,8 @@ static int spi_qup_probe(struct platform_device *pdev)
 	master->transfer_one = spi_qup_transfer_one;
 	master->dev.of_node = pdev->dev.of_node;
 	master->auto_runtime_pm = true;
+	master->dma_alignment = dma_get_cache_alignment();
+	master->max_dma_len = SPI_MAX_DMA_XFER;
 
 	platform_set_drvdata(pdev, master);
 
@@ -573,6 +836,12 @@ static int spi_qup_probe(struct platform_device *pdev)
 	controller->cclk = cclk;
 	controller->irq = irq;
 
+	ret = spi_qup_init_dma(master, res->start);
+	if (ret == -EPROBE_DEFER)
+		goto error;
+	else if (!ret)
+		master->can_dma = spi_qup_can_dma;
+
 	/* set v1 flag if device is version 1 */
 	if (of_device_is_compatible(dev->of_node, "qcom,spi-qup-v1.1.1"))
 		controller->qup_v1 = 1;
@@ -609,7 +878,7 @@ static int spi_qup_probe(struct platform_device *pdev)
 	ret = spi_qup_set_state(controller, QUP_STATE_RESET);
 	if (ret) {
 		dev_err(dev, "cannot set RESET state\n");
-		goto error;
+		goto error_dma;
 	}
 
 	writel_relaxed(0, base + QUP_OPERATIONAL);
@@ -633,7 +902,7 @@ static int spi_qup_probe(struct platform_device *pdev)
 	ret = devm_request_irq(dev, irq, spi_qup_qup_irq,
 			       IRQF_TRIGGER_HIGH, pdev->name, controller);
 	if (ret)
-		goto error;
+		goto error_dma;
 
 	pm_runtime_set_autosuspend_delay(dev, MSEC_PER_SEC);
 	pm_runtime_use_autosuspend(dev);
@@ -648,6 +917,8 @@ static int spi_qup_probe(struct platform_device *pdev)
 
 disable_pm:
 	pm_runtime_disable(&pdev->dev);
+error_dma:
+	spi_qup_release_dma(master);
 error:
 	clk_disable_unprepare(cclk);
 	clk_disable_unprepare(iclk);
@@ -739,6 +1010,8 @@ static int spi_qup_remove(struct platform_device *pdev)
 	if (ret)
 		return ret;
 
+	spi_qup_release_dma(master);
+
 	clk_disable_unprepare(controller->cclk);
 	clk_disable_unprepare(controller->iclk);
 
diff --git a/drivers/spi/spi-rockchip.c b/drivers/spi/spi-rockchip.c
index 1a777dc..68e7efe 100644
--- a/drivers/spi/spi-rockchip.c
+++ b/drivers/spi/spi-rockchip.c
@@ -179,6 +179,7 @@ struct rockchip_spi {
 	u8 tmode;
 	u8 bpw;
 	u8 n_bytes;
+	u8 rsd_nsecs;
 	unsigned len;
 	u32 speed;
 
@@ -302,8 +303,8 @@ static int rockchip_spi_prepare_message(struct spi_master *master,
 	return 0;
 }
 
-static int rockchip_spi_unprepare_message(struct spi_master *master,
-					  struct spi_message *msg)
+static void rockchip_spi_handle_err(struct spi_master *master,
+				    struct spi_message *msg)
 {
 	unsigned long flags;
 	struct rockchip_spi *rs = spi_master_get_devdata(master);
@@ -313,8 +314,8 @@ static int rockchip_spi_unprepare_message(struct spi_master *master,
 	/*
 	 * For DMA mode, we need terminate DMA channel and flush
 	 * fifo for the next transfer if DMA thansfer timeout.
-	 * unprepare_message() was called by core if transfer complete
-	 * or timeout. Maybe it is reasonable for error handling here.
+	 * handle_err() was called by core if transfer failed.
+	 * Maybe it is reasonable for error handling here.
 	 */
 	if (rs->use_dma) {
 		if (rs->state & RXBUSY) {
@@ -327,6 +328,12 @@ static int rockchip_spi_unprepare_message(struct spi_master *master,
 	}
 
 	spin_unlock_irqrestore(&rs->lock, flags);
+}
+
+static int rockchip_spi_unprepare_message(struct spi_master *master,
+					  struct spi_message *msg)
+{
+	struct rockchip_spi *rs = spi_master_get_devdata(master);
 
 	spi_enable_chip(rs, 0);
 
@@ -493,6 +500,7 @@ static void rockchip_spi_config(struct rockchip_spi *rs)
 {
 	u32 div = 0;
 	u32 dmacr = 0;
+	int rsd = 0;
 
 	u32 cr0 = (CR0_BHT_8BIT << CR0_BHT_OFFSET)
 		| (CR0_SSD_ONE << CR0_SSD_OFFSET);
@@ -519,9 +527,23 @@ static void rockchip_spi_config(struct rockchip_spi *rs)
 	}
 
 	/* div doesn't support odd number */
-	div = max_t(u32, rs->max_freq / rs->speed, 1);
+	div = DIV_ROUND_UP(rs->max_freq, rs->speed);
 	div = (div + 1) & 0xfffe;
 
+	/* Rx sample delay is expressed in parent clock cycles (max 3) */
+	rsd = DIV_ROUND_CLOSEST(rs->rsd_nsecs * (rs->max_freq >> 8),
+				1000000000 >> 8);
+	if (!rsd && rs->rsd_nsecs) {
+		pr_warn_once("rockchip-spi: %u Hz are too slow to express %u ns delay\n",
+			     rs->max_freq, rs->rsd_nsecs);
+	} else if (rsd > 3) {
+		rsd = 3;
+		pr_warn_once("rockchip-spi: %u Hz are too fast to express %u ns delay, clamping at %u ns\n",
+			     rs->max_freq, rs->rsd_nsecs,
+			     rsd * 1000000000U / rs->max_freq);
+	}
+	cr0 |= rsd << CR0_RSD_OFFSET;
+
 	writel_relaxed(cr0, rs->regs + ROCKCHIP_SPI_CTRLR0);
 
 	writel_relaxed(rs->len - 1, rs->regs + ROCKCHIP_SPI_CTRLR1);
@@ -614,6 +636,7 @@ static int rockchip_spi_probe(struct platform_device *pdev)
 	struct rockchip_spi *rs;
 	struct spi_master *master;
 	struct resource *mem;
+	u32 rsd_nsecs;
 
 	master = spi_alloc_master(&pdev->dev, sizeof(struct rockchip_spi));
 	if (!master)
@@ -665,6 +688,10 @@ static int rockchip_spi_probe(struct platform_device *pdev)
 	rs->dev = &pdev->dev;
 	rs->max_freq = clk_get_rate(rs->spiclk);
 
+	if (!of_property_read_u32(pdev->dev.of_node, "rx-sample-delay-ns",
+				  &rsd_nsecs))
+		rs->rsd_nsecs = rsd_nsecs;
+
 	rs->fifo_len = get_fifo_len(rs);
 	if (!rs->fifo_len) {
 		dev_err(&pdev->dev, "Failed to get fifo length\n");
@@ -688,6 +715,7 @@ static int rockchip_spi_probe(struct platform_device *pdev)
 	master->prepare_message = rockchip_spi_prepare_message;
 	master->unprepare_message = rockchip_spi_unprepare_message;
 	master->transfer_one = rockchip_spi_transfer_one;
+	master->handle_err = rockchip_spi_handle_err;
 
 	rs->dma_tx.ch = dma_request_slave_channel(rs->dev, "tx");
 	if (!rs->dma_tx.ch)
diff --git a/drivers/spi/spi-rspi.c b/drivers/spi/spi-rspi.c
index 46ce470..186924a 100644
--- a/drivers/spi/spi-rspi.c
+++ b/drivers/spi/spi-rspi.c
@@ -177,6 +177,13 @@
 #define SPBFCR_RXRST		0x40	/* Receive Buffer Data Reset */
 #define SPBFCR_TXTRG_MASK	0x30	/* Transmit Buffer Data Triggering Number */
 #define SPBFCR_RXTRG_MASK	0x07	/* Receive Buffer Data Triggering Number */
+/* QSPI on R-Car Gen2 */
+#define SPBFCR_TXTRG_1B		0x00	/* 31 bytes (1 byte available) */
+#define SPBFCR_TXTRG_32B	0x30	/* 0 byte (32 bytes available) */
+#define SPBFCR_RXTRG_1B		0x00	/* 1 byte (31 bytes available) */
+#define SPBFCR_RXTRG_32B	0x07	/* 32 bytes (0 byte available) */
+
+#define QSPI_BUFFER_SIZE        32u
 
 struct rspi_data {
 	void __iomem *addr;
@@ -366,6 +373,52 @@ static int qspi_set_config_register(struct rspi_data *rspi, int access_size)
 	return 0;
 }
 
+static void qspi_update(const struct rspi_data *rspi, u8 mask, u8 val, u8 reg)
+{
+	u8 data;
+
+	data = rspi_read8(rspi, reg);
+	data &= ~mask;
+	data |= (val & mask);
+	rspi_write8(rspi, data, reg);
+}
+
+static int qspi_set_send_trigger(struct rspi_data *rspi, unsigned int len)
+{
+	unsigned int n;
+
+	n = min(len, QSPI_BUFFER_SIZE);
+
+	if (len >= QSPI_BUFFER_SIZE) {
+		/* sets triggering number to 32 bytes */
+		qspi_update(rspi, SPBFCR_TXTRG_MASK,
+			     SPBFCR_TXTRG_32B, QSPI_SPBFCR);
+	} else {
+		/* sets triggering number to 1 byte */
+		qspi_update(rspi, SPBFCR_TXTRG_MASK,
+			     SPBFCR_TXTRG_1B, QSPI_SPBFCR);
+	}
+
+	return n;
+}
+
+static void qspi_set_receive_trigger(struct rspi_data *rspi, unsigned int len)
+{
+	unsigned int n;
+
+	n = min(len, QSPI_BUFFER_SIZE);
+
+	if (len >= QSPI_BUFFER_SIZE) {
+		/* sets triggering number to 32 bytes */
+		qspi_update(rspi, SPBFCR_RXTRG_MASK,
+			     SPBFCR_RXTRG_32B, QSPI_SPBFCR);
+	} else {
+		/* sets triggering number to 1 byte */
+		qspi_update(rspi, SPBFCR_RXTRG_MASK,
+			     SPBFCR_RXTRG_1B, QSPI_SPBFCR);
+	}
+}
+
 #define set_config_register(spi, n) spi->ops->set_config_register(spi, n)
 
 static void rspi_enable_irq(const struct rspi_data *rspi, u8 enable)
@@ -609,19 +662,29 @@ static bool rspi_can_dma(struct spi_master *master, struct spi_device *spi,
 	return __rspi_can_dma(rspi, xfer);
 }
 
-static int rspi_common_transfer(struct rspi_data *rspi,
-				struct spi_transfer *xfer)
+static int rspi_dma_check_then_transfer(struct rspi_data *rspi,
+					 struct spi_transfer *xfer)
 {
-	int ret;
-
 	if (rspi->master->can_dma && __rspi_can_dma(rspi, xfer)) {
 		/* rx_buf can be NULL on RSPI on SH in TX-only Mode */
-		ret = rspi_dma_transfer(rspi, &xfer->tx_sg,
+		int ret = rspi_dma_transfer(rspi, &xfer->tx_sg,
 					xfer->rx_buf ? &xfer->rx_sg : NULL);
 		if (ret != -EAGAIN)
-			return ret;
+			return 0;
 	}
 
+	return -EAGAIN;
+}
+
+static int rspi_common_transfer(struct rspi_data *rspi,
+				struct spi_transfer *xfer)
+{
+	int ret;
+
+	ret = rspi_dma_check_then_transfer(rspi, xfer);
+	if (ret != -EAGAIN)
+		return ret;
+
 	ret = rspi_pio_transfer(rspi, xfer->tx_buf, xfer->rx_buf, xfer->len);
 	if (ret < 0)
 		return ret;
@@ -661,12 +724,59 @@ static int rspi_rz_transfer_one(struct spi_master *master,
 	return rspi_common_transfer(rspi, xfer);
 }
 
+static int qspi_trigger_transfer_out_int(struct rspi_data *rspi, const u8 *tx,
+					u8 *rx, unsigned int len)
+{
+	int i, n, ret;
+	int error;
+
+	while (len > 0) {
+		n = qspi_set_send_trigger(rspi, len);
+		qspi_set_receive_trigger(rspi, len);
+		if (n == QSPI_BUFFER_SIZE) {
+			error = rspi_wait_for_tx_empty(rspi);
+			if (error < 0) {
+				dev_err(&rspi->master->dev, "transmit timeout\n");
+				return error;
+			}
+			for (i = 0; i < n; i++)
+				rspi_write_data(rspi, *tx++);
+
+			error = rspi_wait_for_rx_full(rspi);
+			if (error < 0) {
+				dev_err(&rspi->master->dev, "receive timeout\n");
+				return error;
+			}
+			for (i = 0; i < n; i++)
+				*rx++ = rspi_read_data(rspi);
+		} else {
+			ret = rspi_pio_transfer(rspi, tx, rx, n);
+			if (ret < 0)
+				return ret;
+		}
+		len -= n;
+	}
+
+	return 0;
+}
+
 static int qspi_transfer_out_in(struct rspi_data *rspi,
 				struct spi_transfer *xfer)
 {
+	int ret;
+
 	qspi_receive_init(rspi);
 
-	return rspi_common_transfer(rspi, xfer);
+	ret = rspi_dma_check_then_transfer(rspi, xfer);
+	if (ret != -EAGAIN)
+		return ret;
+
+	ret = qspi_trigger_transfer_out_int(rspi, xfer->tx_buf,
+					    xfer->rx_buf, xfer->len);
+	if (ret < 0)
+		return ret;
+
+	return 0;
 }
 
 static int qspi_transfer_out(struct rspi_data *rspi, struct spi_transfer *xfer)
diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c
index 9231c34..b1c6731 100644
--- a/drivers/spi/spi-s3c64xx.c
+++ b/drivers/spi/spi-s3c64xx.c
@@ -324,7 +324,7 @@ static int s3c64xx_spi_prepare_transfer(struct spi_master *spi)
 
 		/* Acquire DMA channels */
 		sdd->rx_dma.ch = dma_request_slave_channel_compat(mask, filter,
-				   (void *)sdd->rx_dma.dmach, dev, "rx");
+				   (void *)(long)sdd->rx_dma.dmach, dev, "rx");
 		if (!sdd->rx_dma.ch) {
 			dev_err(dev, "Failed to get RX DMA channel\n");
 			ret = -EBUSY;
@@ -333,7 +333,7 @@ static int s3c64xx_spi_prepare_transfer(struct spi_master *spi)
 		spi->dma_rx = sdd->rx_dma.ch;
 
 		sdd->tx_dma.ch = dma_request_slave_channel_compat(mask, filter,
-				   (void *)sdd->tx_dma.dmach, dev, "tx");
+				   (void *)(long)sdd->tx_dma.dmach, dev, "tx");
 		if (!sdd->tx_dma.ch) {
 			dev_err(dev, "Failed to get TX DMA channel\n");
 			ret = -EBUSY;
diff --git a/drivers/spi/spi-sc18is602.c b/drivers/spi/spi-sc18is602.c
index 5a56acf..36af4d4 100644
--- a/drivers/spi/spi-sc18is602.c
+++ b/drivers/spi/spi-sc18is602.c
@@ -286,7 +286,7 @@ static int sc18is602_probe(struct i2c_client *client,
 			hw->freq = SC18IS602_CLOCK;
 		break;
 	}
-	master->bus_num = client->adapter->nr;
+	master->bus_num = np ? -1 : client->adapter->nr;
 	master->mode_bits = SPI_CPHA | SPI_CPOL | SPI_LSB_FIRST;
 	master->bits_per_word_mask = SPI_BPW_MASK(8);
 	master->setup = sc18is602_setup;
diff --git a/drivers/spi/spi-st-ssc4.c b/drivers/spi/spi-st-ssc4.c
index 2faeaa7..f17c0ab 100644
--- a/drivers/spi/spi-st-ssc4.c
+++ b/drivers/spi/spi-st-ssc4.c
@@ -482,7 +482,7 @@ static const struct dev_pm_ops spi_st_pm = {
 	SET_RUNTIME_PM_OPS(spi_st_runtime_suspend, spi_st_runtime_resume, NULL)
 };
 
-static struct of_device_id stm_spi_match[] = {
+static const struct of_device_id stm_spi_match[] = {
 	{ .compatible = "st,comms-ssc4-spi", },
 	{},
 };
diff --git a/drivers/spi/spi-ti-qspi.c b/drivers/spi/spi-ti-qspi.c
index 884a716..5c06168 100644
--- a/drivers/spi/spi-ti-qspi.c
+++ b/drivers/spi/spi-ti-qspi.c
@@ -101,6 +101,7 @@ struct ti_qspi {
 #define QSPI_FLEN(n)			((n - 1) << 0)
 
 /* STATUS REGISTER */
+#define BUSY				0x01
 #define WC				0x02
 
 /* INTERRUPT REGISTER */
@@ -199,6 +200,21 @@ static void ti_qspi_restore_ctx(struct ti_qspi *qspi)
 	ti_qspi_write(qspi, ctx_reg->clkctrl, QSPI_SPI_CLOCK_CNTRL_REG);
 }
 
+static inline u32 qspi_is_busy(struct ti_qspi *qspi)
+{
+	u32 stat;
+	unsigned long timeout = jiffies + QSPI_COMPLETION_TIMEOUT;
+
+	stat = ti_qspi_read(qspi, QSPI_SPI_STATUS_REG);
+	while ((stat & BUSY) && time_after(timeout, jiffies)) {
+		cpu_relax();
+		stat = ti_qspi_read(qspi, QSPI_SPI_STATUS_REG);
+	}
+
+	WARN(stat & BUSY, "qspi busy\n");
+	return stat & BUSY;
+}
+
 static int qspi_write_msg(struct ti_qspi *qspi, struct spi_transfer *t)
 {
 	int wlen, count;
@@ -211,6 +227,9 @@ static int qspi_write_msg(struct ti_qspi *qspi, struct spi_transfer *t)
 	wlen = t->bits_per_word >> 3;	/* in bytes */
 
 	while (count) {
+		if (qspi_is_busy(qspi))
+			return -EBUSY;
+
 		switch (wlen) {
 		case 1:
 			dev_dbg(qspi->dev, "tx cmd %08x dc %08x data %02x\n",
@@ -266,6 +285,9 @@ static int qspi_read_msg(struct ti_qspi *qspi, struct spi_transfer *t)
 
 	while (count) {
 		dev_dbg(qspi->dev, "rx cmd %08x dc %08x\n", cmd, qspi->dc);
+		if (qspi_is_busy(qspi))
+			return -EBUSY;
+
 		ti_qspi_write(qspi, cmd, QSPI_SPI_CMD_REG);
 		if (!wait_for_completion_timeout(&qspi->transfer_complete,
 						 QSPI_COMPLETION_TIMEOUT)) {
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index c64a3e5..d5d7d22 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -16,7 +16,6 @@
  */
 
 #include <linux/kernel.h>
-#include <linux/kmod.h>
 #include <linux/device.h>
 #include <linux/init.h>
 #include <linux/cache.h>
@@ -129,125 +128,11 @@ static int spi_uevent(struct device *dev, struct kobj_uevent_env *env)
 	return 0;
 }
 
-#ifdef CONFIG_PM_SLEEP
-static int spi_legacy_suspend(struct device *dev, pm_message_t message)
-{
-	int			value = 0;
-	struct spi_driver	*drv = to_spi_driver(dev->driver);
-
-	/* suspend will stop irqs and dma; no more i/o */
-	if (drv) {
-		if (drv->suspend)
-			value = drv->suspend(to_spi_device(dev), message);
-		else
-			dev_dbg(dev, "... can't suspend\n");
-	}
-	return value;
-}
-
-static int spi_legacy_resume(struct device *dev)
-{
-	int			value = 0;
-	struct spi_driver	*drv = to_spi_driver(dev->driver);
-
-	/* resume may restart the i/o queue */
-	if (drv) {
-		if (drv->resume)
-			value = drv->resume(to_spi_device(dev));
-		else
-			dev_dbg(dev, "... can't resume\n");
-	}
-	return value;
-}
-
-static int spi_pm_suspend(struct device *dev)
-{
-	const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL;
-
-	if (pm)
-		return pm_generic_suspend(dev);
-	else
-		return spi_legacy_suspend(dev, PMSG_SUSPEND);
-}
-
-static int spi_pm_resume(struct device *dev)
-{
-	const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL;
-
-	if (pm)
-		return pm_generic_resume(dev);
-	else
-		return spi_legacy_resume(dev);
-}
-
-static int spi_pm_freeze(struct device *dev)
-{
-	const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL;
-
-	if (pm)
-		return pm_generic_freeze(dev);
-	else
-		return spi_legacy_suspend(dev, PMSG_FREEZE);
-}
-
-static int spi_pm_thaw(struct device *dev)
-{
-	const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL;
-
-	if (pm)
-		return pm_generic_thaw(dev);
-	else
-		return spi_legacy_resume(dev);
-}
-
-static int spi_pm_poweroff(struct device *dev)
-{
-	const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL;
-
-	if (pm)
-		return pm_generic_poweroff(dev);
-	else
-		return spi_legacy_suspend(dev, PMSG_HIBERNATE);
-}
-
-static int spi_pm_restore(struct device *dev)
-{
-	const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL;
-
-	if (pm)
-		return pm_generic_restore(dev);
-	else
-		return spi_legacy_resume(dev);
-}
-#else
-#define spi_pm_suspend	NULL
-#define spi_pm_resume	NULL
-#define spi_pm_freeze	NULL
-#define spi_pm_thaw	NULL
-#define spi_pm_poweroff	NULL
-#define spi_pm_restore	NULL
-#endif
-
-static const struct dev_pm_ops spi_pm = {
-	.suspend = spi_pm_suspend,
-	.resume = spi_pm_resume,
-	.freeze = spi_pm_freeze,
-	.thaw = spi_pm_thaw,
-	.poweroff = spi_pm_poweroff,
-	.restore = spi_pm_restore,
-	SET_RUNTIME_PM_OPS(
-		pm_generic_runtime_suspend,
-		pm_generic_runtime_resume,
-		NULL
-	)
-};
-
 struct bus_type spi_bus_type = {
 	.name		= "spi",
 	.dev_groups	= spi_dev_groups,
 	.match		= spi_match_device,
 	.uevent		= spi_uevent,
-	.pm		= &spi_pm,
 };
 EXPORT_SYMBOL_GPL(spi_bus_type);
 
@@ -851,6 +736,9 @@ out:
 	if (msg->status == -EINPROGRESS)
 		msg->status = ret;
 
+	if (msg->status && master->handle_err)
+		master->handle_err(master, msg);
+
 	spi_finalize_current_message(master);
 
 	return ret;
@@ -1105,13 +993,14 @@ void spi_finalize_current_message(struct spi_master *master)
 				"failed to unprepare message: %d\n", ret);
 		}
 	}
+
+	trace_spi_message_done(mesg);
+
 	master->cur_msg_prepared = false;
 
 	mesg->state = NULL;
 	if (mesg->complete)
 		mesg->complete(mesg->context);
-
-	trace_spi_message_done(mesg);
 }
 EXPORT_SYMBOL_GPL(spi_finalize_current_message);
 
@@ -1359,7 +1248,6 @@ of_register_spi_device(struct spi_master *master, struct device_node *nc)
 	spi->dev.of_node = nc;
 
 	/* Register the new device */
-	request_module("%s%s", SPI_MODULE_PREFIX, spi->modalias);
 	rc = spi_add_device(spi);
 	if (rc) {
 		dev_err(&master->dev, "spi_device register error %s\n",
@@ -1893,6 +1781,8 @@ int spi_setup(struct spi_device *spi)
 	if (!spi->max_speed_hz)
 		spi->max_speed_hz = spi->master->max_speed_hz;
 
+	spi_set_cs(spi, false);
+
 	if (spi->master->setup)
 		status = spi->master->setup(spi);
 
diff --git a/drivers/spi/spidev.c b/drivers/spi/spidev.c
index 4eb7a98..92c909e 100644
--- a/drivers/spi/spidev.c
+++ b/drivers/spi/spidev.c
@@ -223,7 +223,7 @@ static int spidev_message(struct spidev_data *spidev,
 	struct spi_transfer	*k_xfers;
 	struct spi_transfer	*k_tmp;
 	struct spi_ioc_transfer *u_tmp;
-	unsigned		n, total;
+	unsigned		n, total, tx_total, rx_total;
 	u8			*tx_buf, *rx_buf;
 	int			status = -EFAULT;
 
@@ -239,33 +239,52 @@ static int spidev_message(struct spidev_data *spidev,
 	tx_buf = spidev->tx_buffer;
 	rx_buf = spidev->rx_buffer;
 	total = 0;
+	tx_total = 0;
+	rx_total = 0;
 	for (n = n_xfers, k_tmp = k_xfers, u_tmp = u_xfers;
 			n;
 			n--, k_tmp++, u_tmp++) {
 		k_tmp->len = u_tmp->len;
 
 		total += k_tmp->len;
-		if (total > bufsiz) {
+		/* Since the function returns the total length of transfers
+		 * on success, restrict the total to positive int values to
+		 * avoid the return value looking like an error.  Also check
+		 * each transfer length to avoid arithmetic overflow.
+		 */
+		if (total > INT_MAX || k_tmp->len > INT_MAX) {
 			status = -EMSGSIZE;
 			goto done;
 		}
 
 		if (u_tmp->rx_buf) {
+			/* this transfer needs space in RX bounce buffer */
+			rx_total += k_tmp->len;
+			if (rx_total > bufsiz) {
+				status = -EMSGSIZE;
+				goto done;
+			}
 			k_tmp->rx_buf = rx_buf;
 			if (!access_ok(VERIFY_WRITE, (u8 __user *)
 						(uintptr_t) u_tmp->rx_buf,
 						u_tmp->len))
 				goto done;
+			rx_buf += k_tmp->len;
 		}
 		if (u_tmp->tx_buf) {
+			/* this transfer needs space in TX bounce buffer */
+			tx_total += k_tmp->len;
+			if (tx_total > bufsiz) {
+				status = -EMSGSIZE;
+				goto done;
+			}
 			k_tmp->tx_buf = tx_buf;
 			if (copy_from_user(tx_buf, (const u8 __user *)
 						(uintptr_t) u_tmp->tx_buf,
 					u_tmp->len))
 				goto done;
+			tx_buf += k_tmp->len;
 		}
-		tx_buf += k_tmp->len;
-		rx_buf += k_tmp->len;
 
 		k_tmp->cs_change = !!u_tmp->cs_change;
 		k_tmp->tx_nbits = u_tmp->tx_nbits;
@@ -303,8 +322,8 @@ static int spidev_message(struct spidev_data *spidev,
 				status = -EFAULT;
 				goto done;
 			}
+			rx_buf += u_tmp->len;
 		}
-		rx_buf += u_tmp->len;
 	}
 	status = total;
 
@@ -684,6 +703,14 @@ static const struct file_operations spidev_fops = {
 
 static struct class *spidev_class;
 
+#ifdef CONFIG_OF
+static const struct of_device_id spidev_dt_ids[] = {
+	{ .compatible = "rohm,dh2228fv" },
+	{},
+};
+MODULE_DEVICE_TABLE(of, spidev_dt_ids);
+#endif
+
 /*-------------------------------------------------------------------------*/
 
 static int spidev_probe(struct spi_device *spi)
@@ -692,6 +719,17 @@ static int spidev_probe(struct spi_device *spi)
 	int			status;
 	unsigned long		minor;
 
+	/*
+	 * spidev should never be referenced in DT without a specific
+	 * compatbile string, it is a Linux implementation thing
+	 * rather than a description of the hardware.
+	 */
+	if (spi->dev.of_node && !of_match_device(spidev_dt_ids, &spi->dev)) {
+		dev_err(&spi->dev, "buggy DT: spidev listed directly in DT\n");
+		WARN_ON(spi->dev.of_node &&
+			!of_match_device(spidev_dt_ids, &spi->dev));
+	}
+
 	/* Allocate driver data */
 	spidev = kzalloc(sizeof(*spidev), GFP_KERNEL);
 	if (!spidev)
@@ -758,13 +796,6 @@ static int spidev_remove(struct spi_device *spi)
 	return 0;
 }
 
-static const struct of_device_id spidev_dt_ids[] = {
-	{ .compatible = "rohm,dh2228fv" },
-	{},
-};
-
-MODULE_DEVICE_TABLE(of, spidev_dt_ids);
-
 static struct spi_driver spidev_spi_driver = {
 	.driver = {
 		.name =		"spidev",
diff --git a/drivers/staging/Kconfig b/drivers/staging/Kconfig
index 45baa83..bfacf69 100644
--- a/drivers/staging/Kconfig
+++ b/drivers/staging/Kconfig
@@ -58,6 +58,8 @@ source "drivers/staging/iio/Kconfig"
 
 source "drivers/staging/sm7xxfb/Kconfig"
 
+source "drivers/staging/sm750fb/Kconfig"
+
 source "drivers/staging/xgifb/Kconfig"
 
 source "drivers/staging/emxx_udc/Kconfig"
@@ -108,4 +110,6 @@ source "drivers/staging/fbtft/Kconfig"
 
 source "drivers/staging/i2o/Kconfig"
 
+source "drivers/staging/fsl-mc/Kconfig"
+
 endif # STAGING
diff --git a/drivers/staging/Makefile b/drivers/staging/Makefile
index 2916079..2bbd1bf 100644
--- a/drivers/staging/Makefile
+++ b/drivers/staging/Makefile
@@ -23,6 +23,7 @@ obj-$(CONFIG_VT6656)		+= vt6656/
 obj-$(CONFIG_VME_BUS)		+= vme/
 obj-$(CONFIG_IIO)		+= iio/
 obj-$(CONFIG_FB_SM7XX)		+= sm7xxfb/
+obj-$(CONFIG_FB_SM7XX)		+= sm750fb/
 obj-$(CONFIG_FB_XGI)		+= xgifb/
 obj-$(CONFIG_USB_EMXX)		+= emxx_udc/
 obj-$(CONFIG_FT1000)		+= ft1000/
@@ -46,3 +47,4 @@ obj-$(CONFIG_UNISYSSPAR)	+= unisys/
 obj-$(CONFIG_COMMON_CLK_XLNX_CLKWZRD)	+= clocking-wizard/
 obj-$(CONFIG_FB_TFT)		+= fbtft/
 obj-$(CONFIG_I2O)		+= i2o/
+obj-$(CONFIG_FSL_MC_BUS)	+= fsl-mc/
diff --git a/drivers/staging/android/ion/ion.c b/drivers/staging/android/ion/ion.c
index b8f1c49..0e3d8c7 100644
--- a/drivers/staging/android/ion/ion.c
+++ b/drivers/staging/android/ion/ion.c
@@ -566,8 +566,8 @@ int ion_phys(struct ion_client *client, struct ion_handle *handle,
 	buffer = handle->buffer;
 
 	if (!buffer->heap->ops->phys) {
-		pr_err("%s: ion_phys is not implemented by this heap.\n",
-		       __func__);
+		pr_err("%s: ion_phys is not implemented by this heap (name=%s, type=%d).\n",
+			__func__, buffer->heap->name, buffer->heap->type);
 		mutex_unlock(&client->lock);
 		return -ENODEV;
 	}
@@ -1395,7 +1395,7 @@ static int ion_debug_heap_show(struct seq_file *s, void *unused)
 	size_t total_size = 0;
 	size_t total_orphaned_size = 0;
 
-	seq_printf(s, "%16.s %16.s %16.s\n", "client", "pid", "size");
+	seq_printf(s, "%16s %16s %16s\n", "client", "pid", "size");
 	seq_puts(s, "----------------------------------------------------\n");
 
 	for (n = rb_first(&dev->clients); n; n = rb_next(n)) {
@@ -1409,10 +1409,10 @@ static int ion_debug_heap_show(struct seq_file *s, void *unused)
 			char task_comm[TASK_COMM_LEN];
 
 			get_task_comm(task_comm, client->task);
-			seq_printf(s, "%16.s %16u %16zu\n", task_comm,
+			seq_printf(s, "%16s %16u %16zu\n", task_comm,
 				   client->pid, size);
 		} else {
-			seq_printf(s, "%16.s %16u %16zu\n", client->name,
+			seq_printf(s, "%16s %16u %16zu\n", client->name,
 				   client->pid, size);
 		}
 	}
@@ -1426,7 +1426,7 @@ static int ion_debug_heap_show(struct seq_file *s, void *unused)
 			continue;
 		total_size += buffer->size;
 		if (!buffer->handle_count) {
-			seq_printf(s, "%16.s %16u %16zu %d %d\n",
+			seq_printf(s, "%16s %16u %16zu %d %d\n",
 				   buffer->task_comm, buffer->pid,
 				   buffer->size, buffer->kmap_cnt,
 				   atomic_read(&buffer->ref.refcount));
@@ -1435,11 +1435,11 @@ static int ion_debug_heap_show(struct seq_file *s, void *unused)
 	}
 	mutex_unlock(&dev->buffer_lock);
 	seq_puts(s, "----------------------------------------------------\n");
-	seq_printf(s, "%16.s %16zu\n", "total orphaned",
+	seq_printf(s, "%16s %16zu\n", "total orphaned",
 		   total_orphaned_size);
-	seq_printf(s, "%16.s %16zu\n", "total ", total_size);
+	seq_printf(s, "%16s %16zu\n", "total ", total_size);
 	if (heap->flags & ION_HEAP_FLAG_DEFER_FREE)
-		seq_printf(s, "%16.s %16zu\n", "deferred free",
+		seq_printf(s, "%16s %16zu\n", "deferred free",
 				heap->free_list_size);
 	seq_puts(s, "----------------------------------------------------\n");
 
diff --git a/drivers/staging/android/ion/ion_test.c b/drivers/staging/android/ion/ion_test.c
index 654acb5..3bc461c 100644
--- a/drivers/staging/android/ion/ion_test.c
+++ b/drivers/staging/android/ion/ion_test.c
@@ -280,3 +280,4 @@ static void __exit ion_test_exit(void)
 
 module_init(ion_test_init);
 module_exit(ion_test_exit);
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/staging/android/sync.c b/drivers/staging/android/sync.c
index 7bdb62b..f83e00c 100644
--- a/drivers/staging/android/sync.c
+++ b/drivers/staging/android/sync.c
@@ -114,7 +114,7 @@ void sync_timeline_signal(struct sync_timeline *obj)
 	list_for_each_entry_safe(pt, next, &obj->active_list_head,
 				 active_list) {
 		if (fence_is_signaled_locked(&pt->base))
-			list_del(&pt->active_list);
+			list_del_init(&pt->active_list);
 	}
 
 	spin_unlock_irqrestore(&obj->child_list_lock, flags);
diff --git a/drivers/staging/comedi/Kconfig b/drivers/staging/comedi/Kconfig
index 593fcb1..61c6351 100644
--- a/drivers/staging/comedi/Kconfig
+++ b/drivers/staging/comedi/Kconfig
@@ -108,6 +108,7 @@ if COMEDI_ISA_DRIVERS
 
 config COMEDI_PCL711
 	tristate "Advantech PCL-711/711b and ADlink ACL-8112 ISA card support"
+	select COMEDI_8254
 	---help---
 	  Enable support for Advantech PCL-711 and 711b, ADlink ACL-8112
 
@@ -169,6 +170,7 @@ config COMEDI_PCL730
 config COMEDI_PCL812
 	tristate "Advantech PCL-812/813 and ADlink ACL-8112/8113/8113/8216"
 	select COMEDI_ISADMA if ISA_DMA_API
+	select COMEDI_8254
 	---help---
 	  Enable support for Advantech PCL-812/PG, PCL-813/B, ADLink
 	  ACL-8112DG/HG/PG, ACL-8113, ACL-8216, ICP DAS A-821PGH/PGL/PGL-NDA,
@@ -180,6 +182,7 @@ config COMEDI_PCL812
 config COMEDI_PCL816
 	tristate "Advantech PCL-814 and PCL-816 ISA card support"
 	select COMEDI_ISADMA if ISA_DMA_API
+	select COMEDI_8254
 	---help---
 	  Enable support for Advantech PCL-814 and PCL-816 ISA cards
 
@@ -189,6 +192,7 @@ config COMEDI_PCL816
 config COMEDI_PCL818
 	tristate "Advantech PCL-718 and PCL-818 ISA card support"
 	select COMEDI_ISADMA if ISA_DMA_API
+	select COMEDI_8254
 	---help---
 	  Enable support for Advantech PCL-818 ISA cards
 	  PCL-818L, PCL-818H, PCL-818HD, PCL-818HG, PCL-818 and PCL-718
@@ -259,6 +263,7 @@ config COMEDI_DAC02
 
 config COMEDI_DAS16M1
 	tristate "MeasurementComputing CIO-DAS16/M1DAS-16 ISA card support"
+	select COMEDI_8254
 	select COMEDI_8255
 	---help---
 	  Enable support for Measurement Computing CIO-DAS16/M1 ISA cards.
@@ -282,6 +287,7 @@ config COMEDI_DAS08_ISA
 config COMEDI_DAS16
 	tristate "DAS-16 compatible ISA and PC/104 card support"
 	select COMEDI_ISADMA if ISA_DMA_API
+	select COMEDI_8254
 	select COMEDI_8255
 	---help---
 	  Enable support for Keithley Metrabyte/ComputerBoards DAS16
@@ -298,6 +304,7 @@ config COMEDI_DAS16
 
 config COMEDI_DAS800
 	tristate "DAS800 and compatible ISA card support"
+	select COMEDI_8254
 	---help---
 	  Enable support for Keithley Metrabyte DAS800 and compatible ISA cards
 	  Keithley Metrabyte DAS-800, DAS-801, DAS-802
@@ -310,6 +317,7 @@ config COMEDI_DAS800
 config COMEDI_DAS1800
 	tristate "DAS1800 and compatible ISA card support"
 	select COMEDI_ISADMA if ISA_DMA_API
+	select COMEDI_8254
 	---help---
 	  Enable support for DAS1800 and compatible ISA cards
 	  Keithley Metrabyte DAS-1701ST, DAS-1701ST-DA, DAS-1701/AO,
@@ -323,6 +331,7 @@ config COMEDI_DAS1800
 
 config COMEDI_DAS6402
 	tristate "DAS6402 and compatible ISA card support"
+	select COMEDI_8254
 	---help---
 	  Enable support for DAS6402 and compatible ISA cards
 	  Computerboards, Keithley Metrabyte DAS6402 and compatibles
@@ -463,6 +472,7 @@ config COMEDI_ADQ12B
 config COMEDI_NI_AT_A2150
 	tristate "NI AT-A2150 ISA card support"
 	select COMEDI_ISADMA if ISA_DMA_API
+	select COMEDI_8254
 	---help---
 	  Enable support for National Instruments AT-A2150 cards
 
@@ -471,6 +481,7 @@ config COMEDI_NI_AT_A2150
 
 config COMEDI_NI_AT_AO
 	tristate "NI AT-AO-6/10 EISA card support"
+	select COMEDI_8254
 	---help---
 	  Enable support for National Instruments AT-AO-6/10 cards
 
@@ -715,6 +726,7 @@ config COMEDI_ADL_PCI8164
 
 config COMEDI_ADL_PCI9111
 	tristate "ADLink PCI-9111HR support"
+	select COMEDI_8254
 	---help---
 	  Enable support for ADlink PCI9111 cards
 
@@ -724,6 +736,7 @@ config COMEDI_ADL_PCI9111
 config COMEDI_ADL_PCI9118
 	tristate "ADLink PCI-9118DG, PCI-9118HG, PCI-9118HR support"
 	depends on HAS_DMA
+	select COMEDI_8254
 	---help---
 	  Enable support for ADlink PCI-9118DG, PCI-9118HG, PCI-9118HR cards
 
@@ -732,6 +745,7 @@ config COMEDI_ADL_PCI9118
 
 config COMEDI_ADV_PCI1710
 	tristate "Advantech PCI-171x, PCI-1720 and PCI-1731 support"
+	select COMEDI_8254
 	---help---
 	  Enable support for Advantech PCI-1710, PCI-1710HG, PCI-1711,
 	  PCI-1713, PCI-1720 and PCI-1731
@@ -759,6 +773,7 @@ config COMEDI_ADV_PCI1724
 
 config COMEDI_ADV_PCI_DIO
 	tristate "Advantech PCI DIO card support"
+	select COMEDI_8254
 	select COMEDI_8255
 	---help---
 	  Enable support for Advantech PCI DIO cards
@@ -799,6 +814,7 @@ config COMEDI_AMPLC_PC263_PCI
 
 config COMEDI_AMPLC_PCI224
 	tristate "Amplicon PCI224 and PCI234 support"
+	select COMEDI_8254
 	---help---
 	  Enable support for Amplicon PCI224 and PCI234 AO boards
 
@@ -807,6 +823,7 @@ config COMEDI_AMPLC_PCI224
 
 config COMEDI_AMPLC_PCI230
 	tristate "Amplicon PCI230 and PCI260 support"
+	select COMEDI_8254
 	select COMEDI_8255
 	---help---
 	  Enable support for Amplicon PCI230 and PCI260 Multifunction I/O
@@ -912,6 +929,7 @@ config COMEDI_CB_PCIDAS64
 
 config COMEDI_CB_PCIDAS
 	tristate "MeasurementComputing PCI-DAS support"
+	select COMEDI_8254
 	select COMEDI_8255
 	---help---
 	  Enable support for ComputerBoards/MeasurementComputing PCI-DAS with
@@ -935,6 +953,7 @@ config COMEDI_CB_PCIDDA
 
 config COMEDI_CB_PCIMDAS
 	tristate "MeasurementComputing PCIM-DAS1602/16, PCIe-DAS1602/16 support"
+	select COMEDI_8254
 	select COMEDI_8255
 	---help---
 	  Enable support for ComputerBoards/MeasurementComputing PCI Migration
@@ -954,6 +973,7 @@ config COMEDI_CB_PCIMDDA
 
 config COMEDI_ME4000
 	tristate "Meilhaus ME-4000 support"
+	select COMEDI_8254
 	---help---
 	  Enable support for Meilhaus PCI data acquisition cards
 	  ME-4650, ME-4670i, ME-4680, ME-4680i and ME-4680is
@@ -1091,6 +1111,7 @@ if COMEDI_PCMCIA_DRIVERS
 
 config COMEDI_CB_DAS16_CS
 	tristate "CB DAS16 series PCMCIA support"
+	select COMEDI_8254
 	---help---
 	  Enable support for the ComputerBoards/MeasurementComputing PCMCIA
 	  cards DAS16/16, PCM-DAS16D/12 and PCM-DAS16s/16
@@ -1222,6 +1243,9 @@ config COMEDI_VMK80XX
 
 endif # COMEDI_USB_DRIVERS
 
+config COMEDI_8254
+	tristate
+
 config COMEDI_8255
 	tristate "Generic 8255 support"
 	---help---
@@ -1252,6 +1276,7 @@ config COMEDI_KCOMEDILIB
 	  called kcomedilib.
 
 config COMEDI_AMPLC_DIO200
+	select COMEDI_8254
 	tristate
 
 config COMEDI_AMPLC_PC236
@@ -1260,6 +1285,7 @@ config COMEDI_AMPLC_PC236
 
 config COMEDI_DAS08
 	tristate
+	select COMEDI_8254
 	select COMEDI_8255
 
 config COMEDI_ISADMA
@@ -1267,6 +1293,7 @@ config COMEDI_ISADMA
 
 config COMEDI_NI_LABPC
 	tristate
+	select COMEDI_8254
 	select COMEDI_8255
 
 config COMEDI_NI_LABPC_ISADMA
diff --git a/drivers/staging/comedi/comedi_fops.c b/drivers/staging/comedi/comedi_fops.c
index 727640e..e78ddbe 100644
--- a/drivers/staging/comedi/comedi_fops.c
+++ b/drivers/staging/comedi/comedi_fops.c
@@ -144,7 +144,7 @@ static void comedi_device_cleanup(struct comedi_device *dev)
 {
 	struct module *driver_module = NULL;
 
-	if (dev == NULL)
+	if (!dev)
 		return;
 	mutex_lock(&dev->mutex);
 	if (dev->attached)
@@ -260,7 +260,7 @@ comedi_read_subdevice(const struct comedi_device *dev, unsigned int minor)
 
 	if (minor >= COMEDI_NUM_BOARD_MINORS) {
 		s = comedi_subdevice_from_minor(dev, minor);
-		if (s == NULL || (s->subdev_flags & SDF_CMD_READ))
+		if (!s || (s->subdev_flags & SDF_CMD_READ))
 			return s;
 	}
 	return dev->read_subdev;
@@ -273,7 +273,7 @@ comedi_write_subdevice(const struct comedi_device *dev, unsigned int minor)
 
 	if (minor >= COMEDI_NUM_BOARD_MINORS) {
 		s = comedi_subdevice_from_minor(dev, minor);
-		if (s == NULL || (s->subdev_flags & SDF_CMD_WRITE))
+		if (!s || (s->subdev_flags & SDF_CMD_WRITE))
 			return s;
 	}
 	return dev->write_subdev;
@@ -290,9 +290,9 @@ static void comedi_file_reset(struct file *file)
 	write_s = dev->write_subdev;
 	if (minor >= COMEDI_NUM_BOARD_MINORS) {
 		s = comedi_subdevice_from_minor(dev, minor);
-		if (s == NULL || s->subdev_flags & SDF_CMD_READ)
+		if (!s || s->subdev_flags & SDF_CMD_READ)
 			read_s = s;
-		if (s == NULL || s->subdev_flags & SDF_CMD_WRITE)
+		if (!s || s->subdev_flags & SDF_CMD_WRITE)
 			write_s = s;
 	}
 	cfp->last_attached = dev->attached;
@@ -601,28 +601,55 @@ static struct attribute *comedi_dev_attrs[] = {
 };
 ATTRIBUTE_GROUPS(comedi_dev);
 
-static void comedi_set_subdevice_runflags(struct comedi_subdevice *s,
-					  unsigned mask, unsigned bits)
+static void __comedi_clear_subdevice_runflags(struct comedi_subdevice *s,
+					      unsigned bits)
+{
+	s->runflags &= ~bits;
+}
+
+static void __comedi_set_subdevice_runflags(struct comedi_subdevice *s,
+					    unsigned bits)
+{
+	s->runflags |= bits;
+}
+
+static void comedi_update_subdevice_runflags(struct comedi_subdevice *s,
+					     unsigned mask, unsigned bits)
 {
 	unsigned long flags;
 
 	spin_lock_irqsave(&s->spin_lock, flags);
-	s->runflags &= ~mask;
-	s->runflags |= (bits & mask);
+	__comedi_clear_subdevice_runflags(s, mask);
+	__comedi_set_subdevice_runflags(s, bits & mask);
 	spin_unlock_irqrestore(&s->spin_lock, flags);
 }
 
+static unsigned __comedi_get_subdevice_runflags(struct comedi_subdevice *s)
+{
+	return s->runflags;
+}
+
 static unsigned comedi_get_subdevice_runflags(struct comedi_subdevice *s)
 {
 	unsigned long flags;
 	unsigned runflags;
 
 	spin_lock_irqsave(&s->spin_lock, flags);
-	runflags = s->runflags;
+	runflags = __comedi_get_subdevice_runflags(s);
 	spin_unlock_irqrestore(&s->spin_lock, flags);
 	return runflags;
 }
 
+static bool comedi_is_runflags_running(unsigned runflags)
+{
+	return runflags & COMEDI_SRF_RUNNING;
+}
+
+static bool comedi_is_runflags_in_error(unsigned runflags)
+{
+	return runflags & COMEDI_SRF_ERROR;
+}
+
 /**
  * comedi_is_subdevice_running - check if async command running on subdevice
  * @s: comedi_subdevice struct
@@ -634,22 +661,22 @@ bool comedi_is_subdevice_running(struct comedi_subdevice *s)
 {
 	unsigned runflags = comedi_get_subdevice_runflags(s);
 
-	return (runflags & COMEDI_SRF_RUNNING) ? true : false;
+	return comedi_is_runflags_running(runflags);
 }
 EXPORT_SYMBOL_GPL(comedi_is_subdevice_running);
 
-static bool comedi_is_subdevice_in_error(struct comedi_subdevice *s)
+static bool __comedi_is_subdevice_running(struct comedi_subdevice *s)
 {
-	unsigned runflags = comedi_get_subdevice_runflags(s);
+	unsigned runflags = __comedi_get_subdevice_runflags(s);
 
-	return (runflags & COMEDI_SRF_ERROR) ? true : false;
+	return comedi_is_runflags_running(runflags);
 }
 
 static bool comedi_is_subdevice_idle(struct comedi_subdevice *s)
 {
 	unsigned runflags = comedi_get_subdevice_runflags(s);
 
-	return (runflags & COMEDI_SRF_BUSY_MASK) ? false : true;
+	return !(runflags & COMEDI_SRF_BUSY_MASK);
 }
 
 /**
@@ -677,14 +704,14 @@ static void do_become_nonbusy(struct comedi_device *dev,
 {
 	struct comedi_async *async = s->async;
 
-	comedi_set_subdevice_runflags(s, COMEDI_SRF_RUNNING, 0);
+	comedi_update_subdevice_runflags(s, COMEDI_SRF_RUNNING, 0);
 	if (async) {
 		comedi_buf_reset(s);
 		async->inttrig = NULL;
 		kfree(async->cmd.chanlist);
 		async->cmd.chanlist = NULL;
 		s->busy = NULL;
-		wake_up_interruptible_all(&s->async->wait_head);
+		wake_up_interruptible_all(&async->wait_head);
 	} else {
 		dev_err(dev->class_dev,
 			"BUG: (?) do_become_nonbusy called with async=NULL\n");
@@ -759,7 +786,7 @@ static int do_devconfig_ioctl(struct comedi_device *dev,
 	if (!capable(CAP_SYS_ADMIN))
 		return -EPERM;
 
-	if (arg == NULL) {
+	if (!arg) {
 		if (is_device_busy(dev))
 			return -EBUSY;
 		if (dev->attached) {
@@ -1678,8 +1705,8 @@ static int do_cmd_ioctl(struct comedi_device *dev,
 	if (async->cmd.flags & CMDF_WAKE_EOS)
 		async->cb_mask |= COMEDI_CB_EOS;
 
-	comedi_set_subdevice_runflags(s, COMEDI_SRF_BUSY_MASK,
-				      COMEDI_SRF_RUNNING);
+	comedi_update_subdevice_runflags(s, COMEDI_SRF_BUSY_MASK,
+					 COMEDI_SRF_RUNNING);
 
 	/*
 	 * Set s->busy _after_ setting COMEDI_SRF_RUNNING flag to avoid
@@ -1840,7 +1867,7 @@ static int do_cancel_ioctl(struct comedi_device *dev, unsigned long arg,
 	if (arg >= dev->n_subdevices)
 		return -EINVAL;
 	s = &dev->subdevices[arg];
-	if (s->async == NULL)
+	if (!s->async)
 		return -EINVAL;
 
 	if (!s->busy)
@@ -2282,13 +2309,16 @@ static ssize_t comedi_write(struct file *file, const char __user *buf,
 	add_wait_queue(&async->wait_head, &wait);
 	on_wait_queue = true;
 	while (nbytes > 0 && !retval) {
+		unsigned runflags;
+
 		set_current_state(TASK_INTERRUPTIBLE);
 
-		if (!comedi_is_subdevice_running(s)) {
+		runflags = comedi_get_subdevice_runflags(s);
+		if (!comedi_is_runflags_running(runflags)) {
 			if (count == 0) {
 				struct comedi_subdevice *new_s;
 
-				if (comedi_is_subdevice_in_error(s))
+				if (comedi_is_runflags_in_error(runflags))
 					retval = -EPIPE;
 				else
 					retval = 0;
@@ -2435,8 +2465,10 @@ static ssize_t comedi_read(struct file *file, char __user *buf, size_t nbytes,
 			n = m;
 
 		if (n == 0) {
-			if (!comedi_is_subdevice_running(s)) {
-				if (comedi_is_subdevice_in_error(s))
+			unsigned runflags = comedi_get_subdevice_runflags(s);
+
+			if (!comedi_is_runflags_running(runflags)) {
+				if (comedi_is_runflags_in_error(runflags))
 					retval = -EPIPE;
 				else
 					retval = 0;
@@ -2638,39 +2670,38 @@ static const struct file_operations comedi_fops = {
 void comedi_event(struct comedi_device *dev, struct comedi_subdevice *s)
 {
 	struct comedi_async *async = s->async;
-	unsigned runflags = 0;
-	unsigned runflags_mask = 0;
+	unsigned int events;
+	int si_code = 0;
+	unsigned long flags;
 
-	if (!comedi_is_subdevice_running(s))
+	spin_lock_irqsave(&s->spin_lock, flags);
+
+	events = async->events;
+	async->events = 0;
+	if (!__comedi_is_subdevice_running(s)) {
+		spin_unlock_irqrestore(&s->spin_lock, flags);
 		return;
+	}
 
-	if (s->async->events & COMEDI_CB_CANCEL_MASK)
-		runflags_mask |= COMEDI_SRF_RUNNING;
+	if (events & COMEDI_CB_CANCEL_MASK)
+		__comedi_clear_subdevice_runflags(s, COMEDI_SRF_RUNNING);
 
 	/*
-	 * Remember if an error event has occurred, so an error
-	 * can be returned the next time the user does a read().
+	 * Remember if an error event has occurred, so an error can be
+	 * returned the next time the user does a read() or write().
 	 */
-	if (s->async->events & COMEDI_CB_ERROR_MASK) {
-		runflags_mask |= COMEDI_SRF_ERROR;
-		runflags |= COMEDI_SRF_ERROR;
-	}
-	if (runflags_mask) {
-		/*
-		 * Sets COMEDI_SRF_ERROR and COMEDI_SRF_RUNNING together
-		 * atomically.
-		 */
-		comedi_set_subdevice_runflags(s, runflags_mask, runflags);
-	}
+	if (events & COMEDI_CB_ERROR_MASK)
+		__comedi_set_subdevice_runflags(s, COMEDI_SRF_ERROR);
 
-	if (async->cb_mask & s->async->events) {
+	if (async->cb_mask & events) {
 		wake_up_interruptible(&async->wait_head);
-		if (s->subdev_flags & SDF_CMD_READ)
-			kill_fasync(&dev->async_queue, SIGIO, POLL_IN);
-		if (s->subdev_flags & SDF_CMD_WRITE)
-			kill_fasync(&dev->async_queue, SIGIO, POLL_OUT);
+		si_code = async->cmd.flags & CMDF_WRITE ? POLL_OUT : POLL_IN;
 	}
-	s->async->events = 0;
+
+	spin_unlock_irqrestore(&s->spin_lock, flags);
+
+	if (si_code)
+		kill_fasync(&dev->async_queue, SIGIO, si_code);
 }
 EXPORT_SYMBOL_GPL(comedi_event);
 
@@ -2682,7 +2713,7 @@ struct comedi_device *comedi_alloc_board_minor(struct device *hardware_device)
 	unsigned i;
 
 	dev = kzalloc(sizeof(*dev), GFP_KERNEL);
-	if (dev == NULL)
+	if (!dev)
 		return ERR_PTR(-ENOMEM);
 	comedi_device_init(dev);
 	comedi_set_hw_dev(dev, hardware_device);
@@ -2690,7 +2721,7 @@ struct comedi_device *comedi_alloc_board_minor(struct device *hardware_device)
 	mutex_lock(&comedi_board_minor_table_lock);
 	for (i = hardware_device ? comedi_num_legacy_minors : 0;
 	     i < COMEDI_NUM_BOARD_MINORS; ++i) {
-		if (comedi_board_minor_table[i] == NULL) {
+		if (!comedi_board_minor_table[i]) {
 			comedi_board_minor_table[i] = dev;
 			break;
 		}
@@ -2700,7 +2731,8 @@ struct comedi_device *comedi_alloc_board_minor(struct device *hardware_device)
 		mutex_unlock(&dev->mutex);
 		comedi_device_cleanup(dev);
 		comedi_dev_put(dev);
-		pr_err("ran out of minor numbers for board device files\n");
+		dev_err(hardware_device,
+			"ran out of minor numbers for board device files\n");
 		return ERR_PTR(-EBUSY);
 	}
 	dev->minor = i;
@@ -2746,14 +2778,15 @@ int comedi_alloc_subdevice_minor(struct comedi_subdevice *s)
 
 	mutex_lock(&comedi_subdevice_minor_table_lock);
 	for (i = 0; i < COMEDI_NUM_SUBDEVICE_MINORS; ++i) {
-		if (comedi_subdevice_minor_table[i] == NULL) {
+		if (!comedi_subdevice_minor_table[i]) {
 			comedi_subdevice_minor_table[i] = s;
 			break;
 		}
 	}
 	mutex_unlock(&comedi_subdevice_minor_table_lock);
 	if (i == COMEDI_NUM_SUBDEVICE_MINORS) {
-		pr_err("ran out of minor numbers for subdevice files\n");
+		dev_err(dev->class_dev,
+			"ran out of minor numbers for subdevice files\n");
 		return -EBUSY;
 	}
 	i += COMEDI_NUM_BOARD_MINORS;
@@ -2771,7 +2804,7 @@ void comedi_free_subdevice_minor(struct comedi_subdevice *s)
 {
 	unsigned int i;
 
-	if (s == NULL)
+	if (!s)
 		return;
 	if (s->minor < 0)
 		return;
diff --git a/drivers/staging/comedi/comedi_internal.h b/drivers/staging/comedi/comedi_internal.h
index d57817c..3b91853 100644
--- a/drivers/staging/comedi/comedi_internal.h
+++ b/drivers/staging/comedi/comedi_internal.h
@@ -1,11 +1,21 @@
 #ifndef _COMEDI_INTERNAL_H
 #define _COMEDI_INTERNAL_H
 
+#include <linux/compiler.h>
 #include <linux/types.h>
 
 /*
  * various internal comedi stuff
  */
+
+struct comedi_buf_map;
+struct comedi_devconfig;
+struct comedi_device;
+struct comedi_insn;
+struct comedi_rangeinfo;
+struct comedi_subdevice;
+struct device;
+
 int do_rangeinfo_ioctl(struct comedi_device *dev,
 		       struct comedi_rangeinfo __user *arg);
 struct comedi_device *comedi_alloc_board_minor(struct device *hardware_device);
diff --git a/drivers/staging/comedi/comedi_pci.c b/drivers/staging/comedi/comedi_pci.c
index 6ba59c9..027f0f4 100644
--- a/drivers/staging/comedi/comedi_pci.c
+++ b/drivers/staging/comedi/comedi_pci.c
@@ -17,10 +17,9 @@
  */
 
 #include <linux/module.h>
-#include <linux/pci.h>
 #include <linux/interrupt.h>
 
-#include "comedidev.h"
+#include "comedi_pci.h"
 
 /**
  * comedi_to_pci_dev() - comedi_device pointer to pci_dev pointer.
diff --git a/drivers/staging/comedi/comedi_pci.h b/drivers/staging/comedi/comedi_pci.h
new file mode 100644
index 0000000..4005cc9
--- /dev/null
+++ b/drivers/staging/comedi/comedi_pci.h
@@ -0,0 +1,64 @@
+/*
+ * comedi_pci.h
+ * header file for Comedi PCI drivers
+ *
+ * COMEDI - Linux Control and Measurement Device Interface
+ * Copyright (C) 1997-2000 David A. Schleef <ds@schleef.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef _COMEDI_PCI_H
+#define _COMEDI_PCI_H
+
+#include <linux/pci.h>
+
+#include "comedidev.h"
+
+/*
+ * PCI Vendor IDs not in <linux/pci_ids.h>
+ */
+#define PCI_VENDOR_ID_KOLTER		0x1001
+#define PCI_VENDOR_ID_ICP		0x104c
+#define PCI_VENDOR_ID_DT		0x1116
+#define PCI_VENDOR_ID_IOTECH		0x1616
+#define PCI_VENDOR_ID_CONTEC		0x1221
+#define PCI_VENDOR_ID_RTD		0x1435
+#define PCI_VENDOR_ID_HUMUSOFT		0x186c
+
+struct pci_dev *comedi_to_pci_dev(struct comedi_device *);
+
+int comedi_pci_enable(struct comedi_device *);
+void comedi_pci_disable(struct comedi_device *);
+void comedi_pci_detach(struct comedi_device *);
+
+int comedi_pci_auto_config(struct pci_dev *, struct comedi_driver *,
+			   unsigned long context);
+void comedi_pci_auto_unconfig(struct pci_dev *);
+
+int comedi_pci_driver_register(struct comedi_driver *, struct pci_driver *);
+void comedi_pci_driver_unregister(struct comedi_driver *, struct pci_driver *);
+
+/**
+ * module_comedi_pci_driver() - Helper macro for registering a comedi PCI driver
+ * @__comedi_driver: comedi_driver struct
+ * @__pci_driver: pci_driver struct
+ *
+ * Helper macro for comedi PCI drivers which do not do anything special
+ * in module init/exit. This eliminates a lot of boilerplate. Each
+ * module may only use this macro once, and calling it replaces
+ * module_init() and module_exit()
+ */
+#define module_comedi_pci_driver(__comedi_driver, __pci_driver) \
+	module_driver(__comedi_driver, comedi_pci_driver_register, \
+			comedi_pci_driver_unregister, &(__pci_driver))
+
+#endif /* _COMEDI_PCI_H */
diff --git a/drivers/staging/comedi/comedidev.h b/drivers/staging/comedi/comedidev.h
index e138eb0..dfab5a8 100644
--- a/drivers/staging/comedi/comedidev.h
+++ b/drivers/staging/comedi/comedidev.h
@@ -256,6 +256,7 @@ struct comedi_driver {
 struct comedi_device {
 	int use_count;
 	struct comedi_driver *driver;
+	struct comedi_8254 *pacer;
 	void *private;
 
 	struct device *class_dev;
@@ -463,6 +464,84 @@ static inline unsigned int comedi_samples_to_bytes(struct comedi_subdevice *s,
 	return nsamples << comedi_sample_shift(s);
 }
 
+/**
+ * comedi_check_trigger_src() - trivially validate a comedi_cmd trigger source
+ * @src: pointer to the trigger source to validate
+ * @flags: bitmask of valid TRIG_* for the trigger
+ *
+ * This is used in "step 1" of the do_cmdtest functions of comedi drivers
+ * to vaildate the comedi_cmd triggers. The mask of the @src against the
+ * @flags allows the userspace comedilib to pass all the comedi_cmd
+ * triggers as TRIG_ANY and get back a bitmask of the valid trigger sources.
+ */
+static inline int comedi_check_trigger_src(unsigned int *src,
+					   unsigned int flags)
+{
+	unsigned int orig_src = *src;
+
+	*src = orig_src & flags;
+	if (*src == TRIG_INVALID || *src != orig_src)
+		return -EINVAL;
+	return 0;
+}
+
+/**
+ * comedi_check_trigger_is_unique() - make sure a trigger source is unique
+ * @src: the trigger source to check
+ */
+static inline int comedi_check_trigger_is_unique(unsigned int src)
+{
+	/* this test is true if more than one _src bit is set */
+	if ((src & (src - 1)) != 0)
+		return -EINVAL;
+	return 0;
+}
+
+/**
+ * comedi_check_trigger_arg_is() - trivially validate a trigger argument
+ * @arg: pointer to the trigger arg to validate
+ * @val: the value the argument should be
+ */
+static inline int comedi_check_trigger_arg_is(unsigned int *arg,
+					      unsigned int val)
+{
+	if (*arg != val) {
+		*arg = val;
+		return -EINVAL;
+	}
+	return 0;
+}
+
+/**
+ * comedi_check_trigger_arg_min() - trivially validate a trigger argument
+ * @arg: pointer to the trigger arg to validate
+ * @val: the minimum value the argument should be
+ */
+static inline int comedi_check_trigger_arg_min(unsigned int *arg,
+					       unsigned int val)
+{
+	if (*arg < val) {
+		*arg = val;
+		return -EINVAL;
+	}
+	return 0;
+}
+
+/**
+ * comedi_check_trigger_arg_max() - trivially validate a trigger argument
+ * @arg: pointer to the trigger arg to validate
+ * @val: the maximum value the argument should be
+ */
+static inline int comedi_check_trigger_arg_max(unsigned int *arg,
+					       unsigned int val)
+{
+	if (*arg > val) {
+		*arg = val;
+		return -EINVAL;
+	}
+	return 0;
+}
+
 /*
  * Must set dev->hw_dev if you wish to dma directly into comedi's buffer.
  * Also useful for retrieving a previously configured hardware device of
@@ -553,47 +632,4 @@ void comedi_driver_unregister(struct comedi_driver *);
 	module_driver(__comedi_driver, comedi_driver_register, \
 			comedi_driver_unregister)
 
-/* comedi_pci.c - comedi PCI driver specific functions */
-
-/*
- * PCI Vendor IDs not in <linux/pci_ids.h>
- */
-#define PCI_VENDOR_ID_KOLTER		0x1001
-#define PCI_VENDOR_ID_ICP		0x104c
-#define PCI_VENDOR_ID_DT		0x1116
-#define PCI_VENDOR_ID_IOTECH		0x1616
-#define PCI_VENDOR_ID_CONTEC		0x1221
-#define PCI_VENDOR_ID_RTD		0x1435
-#define PCI_VENDOR_ID_HUMUSOFT		0x186c
-
-struct pci_dev;
-struct pci_driver;
-
-struct pci_dev *comedi_to_pci_dev(struct comedi_device *);
-
-int comedi_pci_enable(struct comedi_device *);
-void comedi_pci_disable(struct comedi_device *);
-void comedi_pci_detach(struct comedi_device *);
-
-int comedi_pci_auto_config(struct pci_dev *, struct comedi_driver *,
-			   unsigned long context);
-void comedi_pci_auto_unconfig(struct pci_dev *);
-
-int comedi_pci_driver_register(struct comedi_driver *, struct pci_driver *);
-void comedi_pci_driver_unregister(struct comedi_driver *, struct pci_driver *);
-
-/**
- * module_comedi_pci_driver() - Helper macro for registering a comedi PCI driver
- * @__comedi_driver: comedi_driver struct
- * @__pci_driver: pci_driver struct
- *
- * Helper macro for comedi PCI drivers which do not do anything special
- * in module init/exit. This eliminates a lot of boilerplate. Each
- * module may only use this macro once, and calling it replaces
- * module_init() and module_exit()
- */
-#define module_comedi_pci_driver(__comedi_driver, __pci_driver) \
-	module_driver(__comedi_driver, comedi_pci_driver_register, \
-			comedi_pci_driver_unregister, &(__pci_driver))
-
 #endif /* _COMEDIDEV_H */
diff --git a/drivers/staging/comedi/drivers.c b/drivers/staging/comedi/drivers.c
index f32e714..57dcffe 100644
--- a/drivers/staging/comedi/drivers.c
+++ b/drivers/staging/comedi/drivers.c
@@ -46,7 +46,7 @@ int comedi_set_hw_dev(struct comedi_device *dev, struct device *hw_dev)
 {
 	if (hw_dev == dev->hw_dev)
 		return 0;
-	if (dev->hw_dev != NULL)
+	if (dev->hw_dev)
 		return -EEXIST;
 	dev->hw_dev = get_device(hw_dev);
 	return 0;
@@ -139,7 +139,9 @@ static void comedi_device_detach_cleanup(struct comedi_device *dev)
 		dev->n_subdevices = 0;
 	}
 	kfree(dev->private);
+	kfree(dev->pacer);
 	dev->private = NULL;
+	dev->pacer = NULL;
 	dev->driver = NULL;
 	dev->board_name = NULL;
 	dev->board_ptr = NULL;
@@ -800,7 +802,7 @@ int comedi_device_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		}
 		module_put(driv->module);
 	}
-	if (driv == NULL) {
+	if (!driv) {
 		/*  recognize has failed if we get here */
 		/*  report valid board names before returning error */
 		for (driv = comedi_drivers; driv; driv = driv->next) {
@@ -812,7 +814,7 @@ int comedi_device_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		ret = -EIO;
 		goto out;
 	}
-	if (driv->attach == NULL) {
+	if (!driv->attach) {
 		/* driver does not support manual configuration */
 		dev_warn(dev->class_dev,
 			 "driver '%s' does not support attach using comedi_config\n",
@@ -896,7 +898,7 @@ EXPORT_SYMBOL_GPL(comedi_auto_config);
 
 void comedi_auto_unconfig(struct device *hardware_device)
 {
-	if (hardware_device == NULL)
+	if (!hardware_device)
 		return;
 	comedi_release_hardware_device(hardware_device);
 }
diff --git a/drivers/staging/comedi/drivers/8253.h b/drivers/staging/comedi/drivers/8253.h
deleted file mode 100644
index 51b9c8d..0000000
--- a/drivers/staging/comedi/drivers/8253.h
+++ /dev/null
@@ -1,347 +0,0 @@
-/*
- * comedi/drivers/8253.h
- * Header file for 8253
- *
- * COMEDI - Linux Control and Measurement Device Interface
- * Copyright (C) 2000 David A. Schleef <ds@schleef.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-#ifndef _8253_H
-#define _8253_H
-
-#include "../comedi.h"
-
-/*
- * Common oscillator base values in nanoseconds
- */
-#define I8254_OSC_BASE_10MHZ		100
-#define I8254_OSC_BASE_5MHZ		200
-#define I8254_OSC_BASE_4MHZ		250
-#define I8254_OSC_BASE_2MHZ		500
-#define I8254_OSC_BASE_1MHZ		1000
-
-static inline void i8253_cascade_ns_to_timer(int i8253_osc_base,
-					     unsigned int *d1,
-					     unsigned int *d2,
-					     unsigned int *nanosec,
-					     unsigned int flags)
-{
-	unsigned int divider;
-	unsigned int div1, div2;
-	unsigned int div1_glb, div2_glb, ns_glb;
-	unsigned int div1_lub, div2_lub, ns_lub;
-	unsigned int ns;
-	unsigned int start;
-	unsigned int ns_low, ns_high;
-	static const unsigned int max_count = 0x10000;
-	/*
-	 * exit early if everything is already correct (this can save time
-	 * since this function may be called repeatedly during command tests
-	 * and execution)
-	 */
-	div1 = *d1 ? *d1 : max_count;
-	div2 = *d2 ? *d2 : max_count;
-	divider = div1 * div2;
-	if (div1 * div2 * i8253_osc_base == *nanosec &&
-	    div1 > 1 && div1 <= max_count && div2 > 1 && div2 <= max_count &&
-	    /* check for overflow */
-	    divider > div1 && divider > div2 &&
-	    divider * i8253_osc_base > divider &&
-	    divider * i8253_osc_base > i8253_osc_base) {
-		return;
-	}
-
-	divider = *nanosec / i8253_osc_base;
-
-	div1_lub = div2_lub = 0;
-	div1_glb = div2_glb = 0;
-
-	ns_glb = 0;
-	ns_lub = 0xffffffff;
-
-	div2 = max_count;
-	start = divider / div2;
-	if (start < 2)
-		start = 2;
-	for (div1 = start; div1 <= divider / div1 + 1 && div1 <= max_count;
-	     div1++) {
-		for (div2 = divider / div1;
-		     div1 * div2 <= divider + div1 + 1 && div2 <= max_count;
-		     div2++) {
-			ns = i8253_osc_base * div1 * div2;
-			if (ns <= *nanosec && ns > ns_glb) {
-				ns_glb = ns;
-				div1_glb = div1;
-				div2_glb = div2;
-			}
-			if (ns >= *nanosec && ns < ns_lub) {
-				ns_lub = ns;
-				div1_lub = div1;
-				div2_lub = div2;
-			}
-		}
-	}
-
-	switch (flags & CMDF_ROUND_MASK) {
-	case CMDF_ROUND_NEAREST:
-	default:
-		ns_high = div1_lub * div2_lub * i8253_osc_base;
-		ns_low = div1_glb * div2_glb * i8253_osc_base;
-		if (ns_high - *nanosec < *nanosec - ns_low) {
-			div1 = div1_lub;
-			div2 = div2_lub;
-		} else {
-			div1 = div1_glb;
-			div2 = div2_glb;
-		}
-		break;
-	case CMDF_ROUND_UP:
-		div1 = div1_lub;
-		div2 = div2_lub;
-		break;
-	case CMDF_ROUND_DOWN:
-		div1 = div1_glb;
-		div2 = div2_glb;
-		break;
-	}
-
-	*nanosec = div1 * div2 * i8253_osc_base;
-	/* masking is done since counter maps zero to 0x10000 */
-	*d1 = div1 & 0xffff;
-	*d2 = div2 & 0xffff;
-}
-
-#ifndef CMDTEST
-/*
- * i8254_load programs 8254 counter chip.  It should also work for the 8253.
- * base_address is the lowest io address
- * for the chip (the address of counter 0).
- * counter_number is the counter you want to load (0,1 or 2)
- * count is the number to load into the counter.
- *
- * You probably want to use mode 2.
- *
- * Use i8254_mm_load() if you board uses memory-mapped io, it is
- * the same as i8254_load() except it uses writeb() instead of outb().
- *
- * Neither i8254_load() or i8254_read() do their loading/reading
- * atomically.  The 16 bit read/writes are performed with two successive
- * 8 bit read/writes.  So if two parts of your driver do a load/read on
- * the same counter, it may be necessary to protect these functions
- * with a spinlock.
- *
- * FMH
- */
-
-#define i8254_control_reg	3
-
-static inline int i8254_load(unsigned long base_address, unsigned int regshift,
-			     unsigned int counter_number, unsigned int count,
-			     unsigned int mode)
-{
-	unsigned int byte;
-
-	if (counter_number > 2)
-		return -1;
-	if (count > 0xffff)
-		return -1;
-	if (mode > 5)
-		return -1;
-	if ((mode == 2 || mode == 3) && count == 1)
-		return -1;
-
-	byte = counter_number << 6;
-	byte |= 0x30;		/* load low then high byte */
-	byte |= (mode << 1);	/* set counter mode */
-	outb(byte, base_address + (i8254_control_reg << regshift));
-	byte = count & 0xff;	/* lsb of counter value */
-	outb(byte, base_address + (counter_number << regshift));
-	byte = (count >> 8) & 0xff;	/* msb of counter value */
-	outb(byte, base_address + (counter_number << regshift));
-
-	return 0;
-}
-
-static inline int i8254_mm_load(void __iomem *base_address,
-				unsigned int regshift,
-				unsigned int counter_number,
-				unsigned int count,
-				unsigned int mode)
-{
-	unsigned int byte;
-
-	if (counter_number > 2)
-		return -1;
-	if (count > 0xffff)
-		return -1;
-	if (mode > 5)
-		return -1;
-	if ((mode == 2 || mode == 3) && count == 1)
-		return -1;
-
-	byte = counter_number << 6;
-	byte |= 0x30;		/* load low then high byte */
-	byte |= (mode << 1);	/* set counter mode */
-	writeb(byte, base_address + (i8254_control_reg << regshift));
-	byte = count & 0xff;	/* lsb of counter value */
-	writeb(byte, base_address + (counter_number << regshift));
-	byte = (count >> 8) & 0xff;	/* msb of counter value */
-	writeb(byte, base_address + (counter_number << regshift));
-
-	return 0;
-}
-
-/* Returns 16 bit counter value, should work for 8253 also. */
-static inline int i8254_read(unsigned long base_address, unsigned int regshift,
-			     unsigned int counter_number)
-{
-	unsigned int byte;
-	int ret;
-
-	if (counter_number > 2)
-		return -1;
-
-	/* latch counter */
-	byte = counter_number << 6;
-	outb(byte, base_address + (i8254_control_reg << regshift));
-
-	/* read lsb */
-	ret = inb(base_address + (counter_number << regshift));
-	/* read msb */
-	ret += inb(base_address + (counter_number << regshift)) << 8;
-
-	return ret;
-}
-
-static inline int i8254_mm_read(void __iomem *base_address,
-				unsigned int regshift,
-				unsigned int counter_number)
-{
-	unsigned int byte;
-	int ret;
-
-	if (counter_number > 2)
-		return -1;
-
-	/* latch counter */
-	byte = counter_number << 6;
-	writeb(byte, base_address + (i8254_control_reg << regshift));
-
-	/* read lsb */
-	ret = readb(base_address + (counter_number << regshift));
-	/* read msb */
-	ret += readb(base_address + (counter_number << regshift)) << 8;
-
-	return ret;
-}
-
-/* Loads 16 bit initial counter value, should work for 8253 also. */
-static inline void i8254_write(unsigned long base_address,
-			       unsigned int regshift,
-			       unsigned int counter_number, unsigned int count)
-{
-	unsigned int byte;
-
-	if (counter_number > 2)
-		return;
-
-	byte = count & 0xff;	/* lsb of counter value */
-	outb(byte, base_address + (counter_number << regshift));
-	byte = (count >> 8) & 0xff;	/* msb of counter value */
-	outb(byte, base_address + (counter_number << regshift));
-}
-
-static inline void i8254_mm_write(void __iomem *base_address,
-				  unsigned int regshift,
-				  unsigned int counter_number,
-				  unsigned int count)
-{
-	unsigned int byte;
-
-	if (counter_number > 2)
-		return;
-
-	byte = count & 0xff;	/* lsb of counter value */
-	writeb(byte, base_address + (counter_number << regshift));
-	byte = (count >> 8) & 0xff;	/* msb of counter value */
-	writeb(byte, base_address + (counter_number << regshift));
-}
-
-/*
- * Set counter mode, should work for 8253 also.
- * Note: the 'mode' value is different to that for i8254_load() and comes
- * from the INSN_CONFIG_8254_SET_MODE command:
- *   I8254_MODE0, I8254_MODE1, ..., I8254_MODE5
- * OR'ed with:
- *   I8254_BCD, I8254_BINARY
- */
-static inline int i8254_set_mode(unsigned long base_address,
-				 unsigned int regshift,
-				 unsigned int counter_number, unsigned int mode)
-{
-	unsigned int byte;
-
-	if (counter_number > 2)
-		return -1;
-	if (mode > (I8254_MODE5 | I8254_BCD))
-		return -1;
-
-	byte = counter_number << 6;
-	byte |= 0x30;		/* load low then high byte */
-	byte |= mode;		/* set counter mode and BCD|binary */
-	outb(byte, base_address + (i8254_control_reg << regshift));
-
-	return 0;
-}
-
-static inline int i8254_mm_set_mode(void __iomem *base_address,
-				    unsigned int regshift,
-				    unsigned int counter_number,
-				    unsigned int mode)
-{
-	unsigned int byte;
-
-	if (counter_number > 2)
-		return -1;
-	if (mode > (I8254_MODE5 | I8254_BCD))
-		return -1;
-
-	byte = counter_number << 6;
-	byte |= 0x30;		/* load low then high byte */
-	byte |= mode;		/* set counter mode and BCD|binary */
-	writeb(byte, base_address + (i8254_control_reg << regshift));
-
-	return 0;
-}
-
-static inline int i8254_status(unsigned long base_address,
-			       unsigned int regshift,
-			       unsigned int counter_number)
-{
-	outb(0xE0 | (2 << counter_number),
-	     base_address + (i8254_control_reg << regshift));
-	return inb(base_address + (counter_number << regshift));
-}
-
-static inline int i8254_mm_status(void __iomem *base_address,
-				  unsigned int regshift,
-				  unsigned int counter_number)
-{
-	writeb(0xE0 | (2 << counter_number),
-	       base_address + (i8254_control_reg << regshift));
-	return readb(base_address + (counter_number << regshift));
-}
-
-#endif
-
-#endif
diff --git a/drivers/staging/comedi/drivers/8255.c b/drivers/staging/comedi/drivers/8255.c
index c2f15de..ba89321 100644
--- a/drivers/staging/comedi/drivers/8255.c
+++ b/drivers/staging/comedi/drivers/8255.c
@@ -51,7 +51,6 @@
 #include <linux/module.h>
 #include "../comedidev.h"
 
-#include "comedi_fc.h"
 #include "8255.h"
 
 struct subdev_8255_private {
diff --git a/drivers/staging/comedi/drivers/8255_pci.c b/drivers/staging/comedi/drivers/8255_pci.c
index 9847642..bb9854b 100644
--- a/drivers/staging/comedi/drivers/8255_pci.c
+++ b/drivers/staging/comedi/drivers/8255_pci.c
@@ -62,9 +62,8 @@
  */
 
 #include <linux/module.h>
-#include <linux/pci.h>
 
-#include "../comedidev.h"
+#include "../comedi_pci.h"
 
 #include "8255.h"
 
@@ -178,7 +177,7 @@ static const struct pci_8255_boardinfo pci_8255_boards[] = {
 	},
 };
 
-/* ripped from mite.h and mite_setup2() to avoid mite dependancy */
+/* ripped from mite.h and mite_setup2() to avoid mite dependency */
 #define MITE_IODWBSR	0xc0	 /* IO Device Window Base Size Register */
 #define WENAB		(1 << 7) /* window enable */
 
diff --git a/drivers/staging/comedi/drivers/Makefile b/drivers/staging/comedi/drivers/Makefile
index 7d1fbd5..d6d8340 100644
--- a/drivers/staging/comedi/drivers/Makefile
+++ b/drivers/staging/comedi/drivers/Makefile
@@ -3,6 +3,7 @@
 ccflags-$(CONFIG_COMEDI_DEBUG)		:= -DDEBUG
 
 # Comedi "helper" modules
+obj-$(CONFIG_COMEDI_8254)		+= comedi_8254.o
 obj-$(CONFIG_COMEDI_ISADMA)		+= comedi_isadma.o
 
 # Comedi misc drivers
diff --git a/drivers/staging/comedi/drivers/addi_apci_1032.c b/drivers/staging/comedi/drivers/addi_apci_1032.c
index 4911b62..b37166d 100644
--- a/drivers/staging/comedi/drivers/addi_apci_1032.c
+++ b/drivers/staging/comedi/drivers/addi_apci_1032.c
@@ -71,11 +71,9 @@
  */
 
 #include <linux/module.h>
-#include <linux/pci.h>
 #include <linux/interrupt.h>
 
-#include "../comedidev.h"
-#include "comedi_fc.h"
+#include "../comedi_pci.h"
 #include "amcc_s5933.h"
 
 /*
@@ -196,11 +194,11 @@ static int apci1032_cos_cmdtest(struct comedi_device *dev,
 
 	/* Step 1 : check if triggers are trivially valid */
 
-	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW);
-	err |= cfc_check_trigger_src(&cmd->scan_begin_src, TRIG_EXT);
-	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_FOLLOW);
-	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_NONE);
+	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW);
+	err |= comedi_check_trigger_src(&cmd->scan_begin_src, TRIG_EXT);
+	err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_FOLLOW);
+	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_NONE);
 
 	if (err)
 		return 1;
@@ -210,11 +208,12 @@ static int apci1032_cos_cmdtest(struct comedi_device *dev,
 
 	/* Step 3: check if arguments are trivially valid */
 
-	err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0);
-	err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
-	err |= cfc_check_trigger_arg_is(&cmd->convert_arg, 0);
-	err |= cfc_check_trigger_arg_is(&cmd->scan_end_arg, cmd->chanlist_len);
-	err |= cfc_check_trigger_arg_is(&cmd->stop_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->convert_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
+					   cmd->chanlist_len);
+	err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
 
 	if (err)
 		return 3;
@@ -238,7 +237,7 @@ static int apci1032_cos_cmd(struct comedi_device *dev,
 
 	if (!devpriv->ctrl) {
 		dev_warn(dev->class_dev,
-			"Interrupts disabled due to mode configuration!\n");
+			 "Interrupts disabled due to mode configuration!\n");
 		return -EINVAL;
 	}
 
@@ -296,7 +295,7 @@ static int apci1032_di_insn_bits(struct comedi_device *dev,
 }
 
 static int apci1032_auto_attach(struct comedi_device *dev,
-					  unsigned long context_unused)
+				unsigned long context_unused)
 {
 	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
 	struct apci1032_private *devpriv;
diff --git a/drivers/staging/comedi/drivers/addi_apci_1500.c b/drivers/staging/comedi/drivers/addi_apci_1500.c
index f15aa1f..63991c4 100644
--- a/drivers/staging/comedi/drivers/addi_apci_1500.c
+++ b/drivers/staging/comedi/drivers/addi_apci_1500.c
@@ -22,11 +22,9 @@
  */
 
 #include <linux/module.h>
-#include <linux/pci.h>
 #include <linux/interrupt.h>
 
-#include "../comedidev.h"
-#include "comedi_fc.h"
+#include "../comedi_pci.h"
 #include "amcc_s5933.h"
 #include "z8536.h"
 
@@ -249,8 +247,8 @@ static irqreturn_t apci1500_interrupt(int irq, void *d)
 	 *
 	 *    Mask     Meaning
 	 * ----------  ------------------------------------------
-	 * 0x00000001  Event 1 has occured
-	 * 0x00000010  Event 2 has occured
+	 * 0x00000001  Event 1 has occurred
+	 * 0x00000010  Event 2 has occurred
 	 * 0x00000100  Counter/timer 1 has run down (not implemented)
 	 * 0x00001000  Counter/timer 2 has run down (not implemented)
 	 * 0x00010000  Counter 3 has run down (not implemented)
@@ -386,11 +384,11 @@ static int apci1500_di_cmdtest(struct comedi_device *dev,
 
 	/* Step 1 : check if triggers are trivially valid */
 
-	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_INT);
-	err |= cfc_check_trigger_src(&cmd->scan_begin_src, TRIG_EXT);
-	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_FOLLOW);
-	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_NONE);
+	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_INT);
+	err |= comedi_check_trigger_src(&cmd->scan_begin_src, TRIG_EXT);
+	err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_FOLLOW);
+	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_NONE);
 
 	if (err)
 		return 1;
@@ -415,12 +413,13 @@ static int apci1500_di_cmdtest(struct comedi_device *dev,
 	 *   3	OR mode for Port A (digital inputs 0-7)
 	 *	OR mode for Port B (digital inputs 8-13 and internal signals)
 	 */
-	err |= cfc_check_trigger_arg_max(&cmd->start_arg, 3);
+	err |= comedi_check_trigger_arg_max(&cmd->start_arg, 3);
 
-	err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
-	err |= cfc_check_trigger_arg_is(&cmd->convert_arg, 0);
-	err |= cfc_check_trigger_arg_is(&cmd->scan_end_arg, cmd->chanlist_len);
-	err |= cfc_check_trigger_arg_is(&cmd->stop_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->convert_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
+					   cmd->chanlist_len);
+	err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
 
 	if (err)
 		return 3;
@@ -514,11 +513,11 @@ static int apci1500_di_cfg_trig(struct comedi_device *dev,
 
 		src = pt & 0xff;
 		if (src)
-			ret |= cfc_check_trigger_is_unique(src);
+			ret |= comedi_check_trigger_is_unique(src);
 
 		src = (pt >> 8) & 0xff;
 		if (src)
-			ret |= cfc_check_trigger_is_unique(src);
+			ret |= comedi_check_trigger_is_unique(src);
 
 		if (ret) {
 			dev_dbg(dev->class_dev,
diff --git a/drivers/staging/comedi/drivers/addi_apci_1516.c b/drivers/staging/comedi/drivers/addi_apci_1516.c
index d841041..9c516d1 100644
--- a/drivers/staging/comedi/drivers/addi_apci_1516.c
+++ b/drivers/staging/comedi/drivers/addi_apci_1516.c
@@ -23,11 +23,9 @@
  */
 
 #include <linux/module.h>
-#include <linux/pci.h>
 
-#include "../comedidev.h"
+#include "../comedi_pci.h"
 #include "addi_watchdog.h"
-#include "comedi_fc.h"
 
 /*
  * PCI bar 1 I/O Register map - Digital input/output
diff --git a/drivers/staging/comedi/drivers/addi_apci_1564.c b/drivers/staging/comedi/drivers/addi_apci_1564.c
index 6872b69..33e58b9 100644
--- a/drivers/staging/comedi/drivers/addi_apci_1564.c
+++ b/drivers/staging/comedi/drivers/addi_apci_1564.c
@@ -22,12 +22,10 @@
  */
 
 #include <linux/module.h>
-#include <linux/pci.h>
 #include <linux/interrupt.h>
 #include <linux/sched.h>
 
-#include "../comedidev.h"
-#include "comedi_fc.h"
+#include "../comedi_pci.h"
 #include "addi_tcw.h"
 #include "addi_watchdog.h"
 
@@ -107,12 +105,12 @@
 #define APCI1564_COUNTER(x)			((x) * 0x20)
 
 struct apci1564_private {
-	unsigned long eeprom;		/* base address of EEPROM register */
-	unsigned long timer;		/* base address of 12-bit timer */
-	unsigned long counters;		/* base address of 32-bit counters */
-	unsigned int mode1;		/* riding-edge/high level channels */
-	unsigned int mode2;		/* falling-edge/low level channels */
-	unsigned int ctrl;		/* interrupt mode OR (edge) . AND (level) */
+	unsigned long eeprom;	/* base address of EEPROM register */
+	unsigned long timer;	/* base address of 12-bit timer */
+	unsigned long counters;	/* base address of 32-bit counters */
+	unsigned int mode1;	/* riding-edge/high level channels */
+	unsigned int mode2;	/* falling-edge/low level channels */
+	unsigned int ctrl;	/* interrupt mode OR (edge) . AND (level) */
 	struct task_struct *tsk_current;
 };
 
@@ -365,11 +363,11 @@ static int apci1564_cos_cmdtest(struct comedi_device *dev,
 
 	/* Step 1 : check if triggers are trivially valid */
 
-	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW);
-	err |= cfc_check_trigger_src(&cmd->scan_begin_src, TRIG_EXT);
-	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_FOLLOW);
-	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_NONE);
+	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW);
+	err |= comedi_check_trigger_src(&cmd->scan_begin_src, TRIG_EXT);
+	err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_FOLLOW);
+	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_NONE);
 
 	if (err)
 		return 1;
@@ -379,11 +377,12 @@ static int apci1564_cos_cmdtest(struct comedi_device *dev,
 
 	/* Step 3: check if arguments are trivially valid */
 
-	err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0);
-	err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
-	err |= cfc_check_trigger_arg_is(&cmd->convert_arg, 0);
-	err |= cfc_check_trigger_arg_is(&cmd->scan_end_arg, cmd->chanlist_len);
-	err |= cfc_check_trigger_arg_is(&cmd->stop_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->convert_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
+					   cmd->chanlist_len);
+	err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
 
 	if (err)
 		return 3;
@@ -407,7 +406,7 @@ static int apci1564_cos_cmd(struct comedi_device *dev,
 
 	if (!devpriv->ctrl) {
 		dev_warn(dev->class_dev,
-			"Interrupts disabled due to mode configuration!\n");
+			 "Interrupts disabled due to mode configuration!\n");
 		return -EINVAL;
 	}
 
@@ -430,7 +429,7 @@ static int apci1564_cos_cancel(struct comedi_device *dev,
 }
 
 static int apci1564_auto_attach(struct comedi_device *dev,
-				      unsigned long context_unused)
+				unsigned long context_unused)
 {
 	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
 	struct apci1564_private *devpriv;
diff --git a/drivers/staging/comedi/drivers/addi_apci_16xx.c b/drivers/staging/comedi/drivers/addi_apci_16xx.c
index a1248da..c63133a 100644
--- a/drivers/staging/comedi/drivers/addi_apci_16xx.c
+++ b/drivers/staging/comedi/drivers/addi_apci_16xx.c
@@ -23,9 +23,8 @@
  */
 
 #include <linux/module.h>
-#include <linux/pci.h>
 
-#include "../comedidev.h"
+#include "../comedi_pci.h"
 
 /*
  * Register I/O map
diff --git a/drivers/staging/comedi/drivers/addi_apci_2032.c b/drivers/staging/comedi/drivers/addi_apci_2032.c
index eebf4f1..ad71525 100644
--- a/drivers/staging/comedi/drivers/addi_apci_2032.c
+++ b/drivers/staging/comedi/drivers/addi_apci_2032.c
@@ -23,13 +23,11 @@
  */
 
 #include <linux/module.h>
-#include <linux/pci.h>
 #include <linux/interrupt.h>
 #include <linux/slab.h>
 
-#include "../comedidev.h"
+#include "../comedi_pci.h"
 #include "addi_watchdog.h"
-#include "comedi_fc.h"
 
 /*
  * PCI bar 1 I/O Register map
@@ -93,17 +91,17 @@ static int apci2032_int_cmdtest(struct comedi_device *dev,
 
 	/* Step 1 : check if triggers are trivially valid */
 
-	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW);
-	err |= cfc_check_trigger_src(&cmd->scan_begin_src, TRIG_EXT);
-	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_NOW);
-	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
+	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW);
+	err |= comedi_check_trigger_src(&cmd->scan_begin_src, TRIG_EXT);
+	err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_NOW);
+	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
 	/* Step 2a : make sure trigger sources are unique */
-	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+	err |= comedi_check_trigger_is_unique(cmd->stop_src);
 
 	/* Step 2b : and mutually compatible */
 
@@ -112,14 +110,15 @@ static int apci2032_int_cmdtest(struct comedi_device *dev,
 
 	/* Step 3: check if arguments are trivially valid */
 
-	err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0);
-	err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
-	err |= cfc_check_trigger_arg_is(&cmd->convert_arg, 0);
-	err |= cfc_check_trigger_arg_is(&cmd->scan_end_arg, cmd->chanlist_len);
+	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->convert_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
+					   cmd->chanlist_len);
 	if (cmd->stop_src == TRIG_COUNT)
-		err |= cfc_check_trigger_arg_min(&cmd->stop_arg, 1);
+		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
 	else	/* TRIG_NONE */
-		err |= cfc_check_trigger_arg_is(&cmd->stop_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
 
 	if (err)
 		return 3;
diff --git a/drivers/staging/comedi/drivers/addi_apci_2200.c b/drivers/staging/comedi/drivers/addi_apci_2200.c
index 1f9d136..2b382a5 100644
--- a/drivers/staging/comedi/drivers/addi_apci_2200.c
+++ b/drivers/staging/comedi/drivers/addi_apci_2200.c
@@ -23,9 +23,8 @@
  */
 
 #include <linux/module.h>
-#include <linux/pci.h>
 
-#include "../comedidev.h"
+#include "../comedi_pci.h"
 #include "addi_watchdog.h"
 
 /*
diff --git a/drivers/staging/comedi/drivers/addi_apci_3120.c b/drivers/staging/comedi/drivers/addi_apci_3120.c
index c65f940..95dc64b 100644
--- a/drivers/staging/comedi/drivers/addi_apci_3120.c
+++ b/drivers/staging/comedi/drivers/addi_apci_3120.c
@@ -22,11 +22,9 @@
  */
 
 #include <linux/module.h>
-#include <linux/pci.h>
 #include <linux/interrupt.h>
 
-#include "../comedidev.h"
-#include "comedi_fc.h"
+#include "../comedi_pci.h"
 #include "amcc_s5933.h"
 
 /*
@@ -612,21 +610,21 @@ static int apci3120_ai_cmdtest(struct comedi_device *dev,
 
 	/* Step 1 : check if triggers are trivially valid */
 
-	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_EXT);
-	err |= cfc_check_trigger_src(&cmd->scan_begin_src,
+	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_EXT);
+	err |= comedi_check_trigger_src(&cmd->scan_begin_src,
 					TRIG_TIMER | TRIG_FOLLOW);
-	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_TIMER);
-	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
+	err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_TIMER);
+	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
 	/* Step 2a : make sure trigger sources are unique */
 
-	err |= cfc_check_trigger_is_unique(cmd->start_src);
-	err |= cfc_check_trigger_is_unique(cmd->scan_begin_src);
-	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+	err |= comedi_check_trigger_is_unique(cmd->start_src);
+	err |= comedi_check_trigger_is_unique(cmd->scan_begin_src);
+	err |= comedi_check_trigger_is_unique(cmd->stop_src);
 
 	/* Step 2b : and mutually compatible */
 
@@ -635,21 +633,24 @@ static int apci3120_ai_cmdtest(struct comedi_device *dev,
 
 	/* Step 3: check if arguments are trivially valid */
 
-	err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
 
-	if (cmd->scan_begin_src == TRIG_TIMER)	/* Test Delay timing */
-		err |= cfc_check_trigger_arg_min(&cmd->scan_begin_arg, 100000);
+	if (cmd->scan_begin_src == TRIG_TIMER) {	/* Test Delay timing */
+		err |= comedi_check_trigger_arg_min(&cmd->scan_begin_arg,
+						    100000);
+	}
 
 	/* minimum conversion time per sample is 10us */
-	err |= cfc_check_trigger_arg_min(&cmd->convert_arg, 10000);
+	err |= comedi_check_trigger_arg_min(&cmd->convert_arg, 10000);
 
-	err |= cfc_check_trigger_arg_min(&cmd->chanlist_len, 1);
-	err |= cfc_check_trigger_arg_is(&cmd->scan_end_arg, cmd->chanlist_len);
+	err |= comedi_check_trigger_arg_min(&cmd->chanlist_len, 1);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
+					   cmd->chanlist_len);
 
 	if (cmd->stop_src == TRIG_COUNT)
-		err |= cfc_check_trigger_arg_min(&cmd->stop_arg, 1);
+		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
 	else	/*  TRIG_NONE */
-		err |= cfc_check_trigger_arg_is(&cmd->stop_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
 
 	if (err)
 		return 3;
@@ -659,7 +660,7 @@ static int apci3120_ai_cmdtest(struct comedi_device *dev,
 	if (cmd->scan_begin_src == TRIG_TIMER) {
 		/* scan begin must be larger than the scan time */
 		arg = cmd->convert_arg * cmd->scan_end_arg;
-		err |= cfc_check_trigger_arg_min(&cmd->scan_begin_arg, arg);
+		err |= comedi_check_trigger_arg_min(&cmd->scan_begin_arg, arg);
 	}
 
 	if (err)
diff --git a/drivers/staging/comedi/drivers/addi_apci_3501.c b/drivers/staging/comedi/drivers/addi_apci_3501.c
index 5961f19..73786a3 100644
--- a/drivers/staging/comedi/drivers/addi_apci_3501.c
+++ b/drivers/staging/comedi/drivers/addi_apci_3501.c
@@ -23,12 +23,10 @@
  */
 
 #include <linux/module.h>
-#include <linux/pci.h>
 #include <linux/interrupt.h>
 #include <linux/sched.h>
 
-#include "../comedidev.h"
-#include "comedi_fc.h"
+#include "../comedi_pci.h"
 #include "amcc_s5933.h"
 
 /*
@@ -203,7 +201,7 @@ static unsigned short apci3501_eeprom_readw(unsigned long iobase,
 		outb(NVCMD_LOAD_HIGH, iobase + AMCC_OP_REG_MCSR_NVCMD);
 		apci3501_eeprom_wait(iobase);
 		outb(((addr + i) >> 8) & 0xff,
-			iobase + AMCC_OP_REG_MCSR_NVDATA);
+		     iobase + AMCC_OP_REG_MCSR_NVDATA);
 		apci3501_eeprom_wait(iobase);
 
 		/* Read the eeprom data byte */
@@ -270,7 +268,7 @@ static irqreturn_t apci3501_interrupt(int irq, void *d)
 
 	/*  Disable Interrupt */
 	ul_Command1 = inl(dev->iobase + APCI3501_TIMER_CTRL_REG);
-	ul_Command1 = (ul_Command1 & 0xFFFFF9FDul);
+	ul_Command1 = ul_Command1 & 0xFFFFF9FDul;
 	outl(ul_Command1, dev->iobase + APCI3501_TIMER_CTRL_REG);
 
 	ui_Timer_AOWatchdog = inl(dev->iobase + APCI3501_TIMER_IRQ_REG) & 0x1;
@@ -282,7 +280,7 @@ static irqreturn_t apci3501_interrupt(int irq, void *d)
 	/* Enable Interrupt Send a signal to from kernel to user space */
 	send_sig(SIGIO, devpriv->tsk_Current, 0);
 	ul_Command1 = inl(dev->iobase + APCI3501_TIMER_CTRL_REG);
-	ul_Command1 = ((ul_Command1 & 0xFFFFF9FDul) | 1 << 1);
+	ul_Command1 = (ul_Command1 & 0xFFFFF9FDul) | 1 << 1;
 	outl(ul_Command1, dev->iobase + APCI3501_TIMER_CTRL_REG);
 	inl(dev->iobase + APCI3501_TIMER_STATUS_REG);
 
diff --git a/drivers/staging/comedi/drivers/addi_apci_3xxx.c b/drivers/staging/comedi/drivers/addi_apci_3xxx.c
index c173810..bef6efc 100644
--- a/drivers/staging/comedi/drivers/addi_apci_3xxx.c
+++ b/drivers/staging/comedi/drivers/addi_apci_3xxx.c
@@ -23,12 +23,9 @@
  */
 
 #include <linux/module.h>
-#include <linux/pci.h>
 #include <linux/interrupt.h>
 
-#include "../comedidev.h"
-
-#include "comedi_fc.h"
+#include "../comedi_pci.h"
 
 #define CONV_UNIT_NS		(1 << 0)
 #define CONV_UNIT_US		(1 << 1)
@@ -529,18 +526,18 @@ static int apci3xxx_ai_cmdtest(struct comedi_device *dev,
 
 	/* Step 1 : check if triggers are trivially valid */
 
-	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW);
-	err |= cfc_check_trigger_src(&cmd->scan_begin_src, TRIG_FOLLOW);
-	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_TIMER);
-	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
+	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW);
+	err |= comedi_check_trigger_src(&cmd->scan_begin_src, TRIG_FOLLOW);
+	err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_TIMER);
+	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
 	/* Step 2a : make sure trigger sources are unique */
 
-	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+	err |= comedi_check_trigger_is_unique(cmd->stop_src);
 
 	/* Step 2b : and mutually compatible */
 
@@ -549,16 +546,17 @@ static int apci3xxx_ai_cmdtest(struct comedi_device *dev,
 
 	/* Step 3: check if arguments are trivially valid */
 
-	err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0);
-	err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
-	err |= cfc_check_trigger_arg_min(&cmd->convert_arg,
-					 board->ai_min_acq_ns);
-	err |= cfc_check_trigger_arg_is(&cmd->scan_end_arg, cmd->chanlist_len);
+	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
+	err |= comedi_check_trigger_arg_min(&cmd->convert_arg,
+					    board->ai_min_acq_ns);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
+					   cmd->chanlist_len);
 
 	if (cmd->stop_src == TRIG_COUNT)
-		err |= cfc_check_trigger_arg_min(&cmd->stop_arg, 1);
+		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
 	else	/* TRIG_NONE */
-		err |= cfc_check_trigger_arg_is(&cmd->stop_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
 
 	if (err)
 		return 3;
@@ -567,7 +565,7 @@ static int apci3xxx_ai_cmdtest(struct comedi_device *dev,
 
 	arg = cmd->convert_arg;
 	err |= apci3xxx_ai_ns_to_timer(dev, &arg, cmd->flags);
-	err |= cfc_check_trigger_arg_is(&cmd->convert_arg, arg);
+	err |= comedi_check_trigger_arg_is(&cmd->convert_arg, arg);
 
 	if (err)
 		return 4;
diff --git a/drivers/staging/comedi/drivers/addi_watchdog.c b/drivers/staging/comedi/drivers/addi_watchdog.c
index c5b082d..9d9853f 100644
--- a/drivers/staging/comedi/drivers/addi_watchdog.c
+++ b/drivers/staging/comedi/drivers/addi_watchdog.c
@@ -54,7 +54,7 @@ static int addi_watchdog_insn_config(struct comedi_device *dev,
 
 		/* Time base is 20ms, let the user know the timeout */
 		dev_info(dev->class_dev, "watchdog enabled, timeout:%dms\n",
-			20 * reload + 20);
+			 20 * reload + 20);
 		break;
 	case INSN_CONFIG_DISARM:
 		spriv->wdog_ctrl = 0;
diff --git a/drivers/staging/comedi/drivers/adl_pci6208.c b/drivers/staging/comedi/drivers/adl_pci6208.c
index a3ea4b7..7ed3fd6 100644
--- a/drivers/staging/comedi/drivers/adl_pci6208.c
+++ b/drivers/staging/comedi/drivers/adl_pci6208.c
@@ -19,19 +19,22 @@
 /*
  * Driver: adl_pci6208
  * Description: ADLink PCI-6208/6216 Series Multi-channel Analog Output Cards
- * Devices: [ADLink] PCI-6208 (adl_pci6208), PCI-6216 (adl_pci6216)
+ * Devices: [ADLink] PCI-6208 (adl_pci6208), PCI-6216
  * Author: nsyeow <nsyeow@pd.jaring.my>
- * Updated: Fri, 30 Jan 2004 14:44:27 +0800
+ * Updated: Wed, 11 Feb 2015 11:37:18 +0000
  * Status: untested
  *
  * Configuration Options: not applicable, uses PCI auto config
+ *
+ * All supported devices share the same PCI device ID and are treated as a
+ * PCI-6216 with 16 analog output channels.  On a PCI-6208, the upper 8
+ * channels exist in registers, but don't go to DAC chips.
  */
 
 #include <linux/module.h>
 #include <linux/delay.h>
-#include <linux/pci.h>
 
-#include "../comedidev.h"
+#include "../comedi_pci.h"
 
 /*
  * PCI-6208/6216-GL register map
@@ -45,27 +48,6 @@
 #define PCI6208_DIO_DI_MASK		(0xf0)
 #define PCI6208_DIO_DI_SHIFT		(4)
 
-enum pci6208_boardid {
-	BOARD_PCI6208,
-	BOARD_PCI6216,
-};
-
-struct pci6208_board {
-	const char *name;
-	int ao_chans;
-};
-
-static const struct pci6208_board pci6208_boards[] = {
-	[BOARD_PCI6208] = {
-		.name		= "adl_pci6208",
-		.ao_chans	= 8,
-	},
-	[BOARD_PCI6216] = {
-		.name		= "adl_pci6216",
-		.ao_chans	= 16,
-	},
-};
-
 static int pci6208_ao_eoc(struct comedi_device *dev,
 			  struct comedi_subdevice *s,
 			  struct comedi_insn *insn,
@@ -136,21 +118,13 @@ static int pci6208_do_insn_bits(struct comedi_device *dev,
 }
 
 static int pci6208_auto_attach(struct comedi_device *dev,
-			       unsigned long context)
+			       unsigned long context_unused)
 {
 	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
-	const struct pci6208_board *boardinfo = NULL;
 	struct comedi_subdevice *s;
 	unsigned int val;
 	int ret;
 
-	if (context < ARRAY_SIZE(pci6208_boards))
-		boardinfo = &pci6208_boards[context];
-	if (!boardinfo)
-		return -ENODEV;
-	dev->board_ptr = boardinfo;
-	dev->board_name = boardinfo->name;
-
 	ret = comedi_pci_enable(dev);
 	if (ret)
 		return ret;
@@ -164,7 +138,7 @@ static int pci6208_auto_attach(struct comedi_device *dev,
 	/* analog output subdevice */
 	s->type		= COMEDI_SUBD_AO;
 	s->subdev_flags	= SDF_WRITABLE;
-	s->n_chan	= boardinfo->ao_chans;
+	s->n_chan	= 16;	/* Only 8 usable on PCI-6208 */
 	s->maxdata	= 0xffff;
 	s->range_table	= &range_bipolar10;
 	s->insn_write	= pci6208_ao_insn_write;
@@ -217,8 +191,9 @@ static int adl_pci6208_pci_probe(struct pci_dev *dev,
 }
 
 static const struct pci_device_id adl_pci6208_pci_table[] = {
-	{ PCI_VDEVICE(ADLINK, 0x6208), BOARD_PCI6208 },
-	{ PCI_VDEVICE(ADLINK, 0x6216), BOARD_PCI6216 },
+	{ PCI_DEVICE(PCI_VENDOR_ID_ADLINK, 0x6208) },
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_9050,
+			 0x9999, 0x6208) },
 	{ 0 }
 };
 MODULE_DEVICE_TABLE(pci, adl_pci6208_pci_table);
diff --git a/drivers/staging/comedi/drivers/adl_pci7x3x.c b/drivers/staging/comedi/drivers/adl_pci7x3x.c
index 618e641..934af3f 100644
--- a/drivers/staging/comedi/drivers/adl_pci7x3x.c
+++ b/drivers/staging/comedi/drivers/adl_pci7x3x.c
@@ -53,9 +53,8 @@
  */
 
 #include <linux/module.h>
-#include <linux/pci.h>
 
-#include "../comedidev.h"
+#include "../comedi_pci.h"
 
 /*
  * Register I/O map (32-bit access only)
diff --git a/drivers/staging/comedi/drivers/adl_pci8164.c b/drivers/staging/comedi/drivers/adl_pci8164.c
index cc6c53b..da901c8d 100644
--- a/drivers/staging/comedi/drivers/adl_pci8164.c
+++ b/drivers/staging/comedi/drivers/adl_pci8164.c
@@ -28,9 +28,8 @@
 
 #include <linux/kernel.h>
 #include <linux/module.h>
-#include <linux/pci.h>
 
-#include "../comedidev.h"
+#include "../comedi_pci.h"
 
 #define PCI8164_AXIS(x)		((x) * 0x08)
 #define PCI8164_CMD_MSTS_REG	0x00
@@ -69,7 +68,7 @@ static int adl_pci8164_insn_write(struct comedi_device *dev,
 }
 
 static int adl_pci8164_auto_attach(struct comedi_device *dev,
-					     unsigned long context_unused)
+				   unsigned long context_unused)
 {
 	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
 	struct comedi_subdevice *s;
diff --git a/drivers/staging/comedi/drivers/adl_pci9111.c b/drivers/staging/comedi/drivers/adl_pci9111.c
index f68dc99..c9df3af 100644
--- a/drivers/staging/comedi/drivers/adl_pci9111.c
+++ b/drivers/staging/comedi/drivers/adl_pci9111.c
@@ -65,15 +65,13 @@ TODO:
 */
 
 #include <linux/module.h>
-#include <linux/pci.h>
 #include <linux/delay.h>
 #include <linux/interrupt.h>
 
-#include "../comedidev.h"
+#include "../comedi_pci.h"
 
-#include "8253.h"
 #include "plx9052.h"
-#include "comedi_fc.h"
+#include "comedi_8254.h"
 
 #define PCI9111_FIFO_HALF_SIZE	512
 
@@ -137,9 +135,6 @@ struct pci9111_private_data {
 	unsigned int chunk_counter;
 	unsigned int chunk_num_samples;
 
-	unsigned int div1;
-	unsigned int div2;
-
 	unsigned short ai_bounce_buffer[2 * PCI9111_FIFO_HALF_SIZE];
 };
 
@@ -167,21 +162,6 @@ static void plx9050_interrupt_control(unsigned long io_base,
 	outb(flags, io_base + PLX9052_INTCSR);
 }
 
-static void pci9111_timer_set(struct comedi_device *dev)
-{
-	struct pci9111_private_data *dev_private = dev->private;
-	unsigned long timer_base = dev->iobase + PCI9111_8254_BASE_REG;
-
-	i8254_set_mode(timer_base, 1, 0, I8254_MODE0 | I8254_BINARY);
-	i8254_set_mode(timer_base, 1, 1, I8254_MODE2 | I8254_BINARY);
-	i8254_set_mode(timer_base, 1, 2, I8254_MODE2 | I8254_BINARY);
-
-	udelay(1);
-
-	i8254_write(timer_base, 1, 2, dev_private->div2);
-	i8254_write(timer_base, 1, 1, dev_private->div1);
-}
-
 enum pci9111_ISC0_sources {
 	irq_on_eoc,
 	irq_on_fifo_half_full
@@ -281,19 +261,18 @@ static int pci9111_ai_do_cmd_test(struct comedi_device *dev,
 				  struct comedi_subdevice *s,
 				  struct comedi_cmd *cmd)
 {
-	struct pci9111_private_data *dev_private = dev->private;
 	int err = 0;
 	unsigned int arg;
 
 	/* Step 1 : check if triggers are trivially valid */
 
-	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW);
-	err |= cfc_check_trigger_src(&cmd->scan_begin_src,
+	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW);
+	err |= comedi_check_trigger_src(&cmd->scan_begin_src,
 					TRIG_TIMER | TRIG_FOLLOW | TRIG_EXT);
-	err |= cfc_check_trigger_src(&cmd->convert_src,
+	err |= comedi_check_trigger_src(&cmd->convert_src,
 					TRIG_TIMER | TRIG_EXT);
-	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= cfc_check_trigger_src(&cmd->stop_src,
+	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= comedi_check_trigger_src(&cmd->stop_src,
 					TRIG_COUNT | TRIG_NONE);
 
 	if (err)
@@ -301,9 +280,9 @@ static int pci9111_ai_do_cmd_test(struct comedi_device *dev,
 
 	/* Step 2a : make sure trigger sources are unique */
 
-	err |= cfc_check_trigger_is_unique(cmd->scan_begin_src);
-	err |= cfc_check_trigger_is_unique(cmd->convert_src);
-	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+	err |= comedi_check_trigger_is_unique(cmd->scan_begin_src);
+	err |= comedi_check_trigger_is_unique(cmd->convert_src);
+	err |= comedi_check_trigger_is_unique(cmd->stop_src);
 
 	/* Step 2b : and mutually compatible */
 
@@ -317,26 +296,29 @@ static int pci9111_ai_do_cmd_test(struct comedi_device *dev,
 
 	/* Step 3: check if arguments are trivially valid */
 
-	err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
 
-	if (cmd->convert_src == TRIG_TIMER)
-		err |= cfc_check_trigger_arg_min(&cmd->convert_arg,
+	if (cmd->convert_src == TRIG_TIMER) {
+		err |= comedi_check_trigger_arg_min(&cmd->convert_arg,
 					PCI9111_AI_ACQUISITION_PERIOD_MIN_NS);
-	else	/* TRIG_EXT */
-		err |= cfc_check_trigger_arg_is(&cmd->convert_arg, 0);
+	} else {	/* TRIG_EXT */
+		err |= comedi_check_trigger_arg_is(&cmd->convert_arg, 0);
+	}
 
-	if (cmd->scan_begin_src == TRIG_TIMER)
-		err |= cfc_check_trigger_arg_min(&cmd->scan_begin_arg,
+	if (cmd->scan_begin_src == TRIG_TIMER) {
+		err |= comedi_check_trigger_arg_min(&cmd->scan_begin_arg,
 					PCI9111_AI_ACQUISITION_PERIOD_MIN_NS);
-	else	/* TRIG_FOLLOW || TRIG_EXT */
-		err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
+	} else {	/* TRIG_FOLLOW || TRIG_EXT */
+		err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
+	}
 
-	err |= cfc_check_trigger_arg_is(&cmd->scan_end_arg, cmd->chanlist_len);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
+					   cmd->chanlist_len);
 
 	if (cmd->stop_src == TRIG_COUNT)
-		err |= cfc_check_trigger_arg_min(&cmd->stop_arg, 1);
+		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
 	else	/* TRIG_NONE */
-		err |= cfc_check_trigger_arg_is(&cmd->stop_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
 
 	if (err)
 		return 3;
@@ -345,11 +327,8 @@ static int pci9111_ai_do_cmd_test(struct comedi_device *dev,
 
 	if (cmd->convert_src == TRIG_TIMER) {
 		arg = cmd->convert_arg;
-		i8253_cascade_ns_to_timer(I8254_OSC_BASE_2MHZ,
-					  &dev_private->div1,
-					  &dev_private->div2,
-					  &arg, cmd->flags);
-		err |= cfc_check_trigger_arg_is(&cmd->convert_arg, arg);
+		comedi_8254_cascade_ns_to_timer(dev->pacer, &arg, cmd->flags);
+		err |= comedi_check_trigger_arg_is(&cmd->convert_arg, arg);
 	}
 
 	/*
@@ -362,7 +341,7 @@ static int pci9111_ai_do_cmd_test(struct comedi_device *dev,
 		if (arg < cmd->scan_begin_arg)
 			arg *= (cmd->scan_begin_arg / arg);
 
-		err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, arg);
+		err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, arg);
 	}
 
 	if (err)
@@ -376,7 +355,6 @@ static int pci9111_ai_do_cmd_test(struct comedi_device *dev,
 		return 5;
 
 	return 0;
-
 }
 
 static int pci9111_ai_do_cmd(struct comedi_device *dev,
@@ -400,13 +378,14 @@ static int pci9111_ai_do_cmd(struct comedi_device *dev,
 	/*  This is the same gain on every channel */
 
 	outb(CR_RANGE(cmd->chanlist[0]) & PCI9111_AI_RANGE_MASK,
-		dev->iobase + PCI9111_AI_RANGE_STAT_REG);
+	     dev->iobase + PCI9111_AI_RANGE_STAT_REG);
 
 	/*  Set timer pacer */
 	dev_private->scan_delay = 0;
 	if (cmd->convert_src == TRIG_TIMER) {
 		trig |= PCI9111_AI_TRIG_CTRL_TPST;
-		pci9111_timer_set(dev);
+		comedi_8254_update_divisors(dev->pacer);
+		comedi_8254_pacer_enable(dev->pacer, 1, 2, true);
 		pci9111_fifo_reset(dev);
 		pci9111_interrupt_source_set(dev, irq_on_fifo_half_full,
 					     irq_on_timer_tick);
@@ -593,7 +572,7 @@ static int pci9111_ai_insn_read(struct comedi_device *dev,
 	status = inb(dev->iobase + PCI9111_AI_RANGE_STAT_REG);
 	if ((status & PCI9111_AI_RANGE_MASK) != range) {
 		outb(range & PCI9111_AI_RANGE_MASK,
-			dev->iobase + PCI9111_AI_RANGE_STAT_REG);
+		     dev->iobase + PCI9111_AI_RANGE_STAT_REG);
 	}
 
 	pci9111_fifo_reset(dev);
@@ -667,16 +646,11 @@ static int pci9111_reset(struct comedi_device *dev)
 	/* disable A/D triggers (software trigger mode) and auto scan off */
 	outb(0, dev->iobase + PCI9111_AI_TRIG_CTRL_REG);
 
-	/* Reset 8254 chip */
-	dev_private->div1 = 0;
-	dev_private->div2 = 0;
-	pci9111_timer_set(dev);
-
 	return 0;
 }
 
 static int pci9111_auto_attach(struct comedi_device *dev,
-					 unsigned long context_unused)
+			       unsigned long context_unused)
 {
 	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
 	struct pci9111_private_data *dev_private;
@@ -702,6 +676,11 @@ static int pci9111_auto_attach(struct comedi_device *dev,
 			dev->irq = pcidev->irq;
 	}
 
+	dev->pacer = comedi_8254_init(dev->iobase + PCI9111_8254_BASE_REG,
+				      I8254_OSC_BASE_2MHZ, I8254_IO16, 0);
+	if (!dev->pacer)
+		return -ENOMEM;
+
 	ret = comedi_alloc_subdevices(dev, 4);
 	if (ret)
 		return ret;
diff --git a/drivers/staging/comedi/drivers/adl_pci9118.c b/drivers/staging/comedi/drivers/adl_pci9118.c
index f61e392..fb3043d 100644
--- a/drivers/staging/comedi/drivers/adl_pci9118.c
+++ b/drivers/staging/comedi/drivers/adl_pci9118.c
@@ -73,17 +73,15 @@
  */
 
 #include <linux/module.h>
-#include <linux/pci.h>
 #include <linux/delay.h>
 #include <linux/gfp.h>
 #include <linux/interrupt.h>
 #include <linux/io.h>
 
-#include "../comedidev.h"
+#include "../comedi_pci.h"
 
 #include "amcc_s5933.h"
-#include "8253.h"
-#include "comedi_fc.h"
+#include "comedi_8254.h"
 
 #define IORANGE_9118	64	/* I hope */
 #define PCI9118_CHANLEN	255	/*
@@ -94,8 +92,7 @@
 /*
  * PCI BAR2 Register map (dev->iobase)
  */
-#define PCI9118_TIMER_REG(x)		(0x00 + ((x) * 4))
-#define PCI9118_TIMER_CTRL_REG		0x0c
+#define PCI9118_TIMER_BASE		0x00
 #define PCI9118_AI_FIFO_REG		0x10
 #define PCI9118_AO_REG(x)		(0x10 + ((x) * 4))
 #define PCI9118_AI_STATUS_REG		0x18
@@ -239,10 +236,6 @@ struct pci9118_private {
 					 * measure can start/stop
 					 * on external trigger
 					 */
-	unsigned int ai_divisor1, ai_divisor2;	/*
-						 * divisors for start of measure
-						 * on external start
-						 */
 	unsigned int dma_actbuf;		/* which buffer is used now */
 	struct pci9118_dmabuf dmabuf[2];
 	int softsshdelay;		/*
@@ -297,24 +290,6 @@ static void pci9118_amcc_int_ena(struct comedi_device *dev, bool enable)
 	outl(intcsr, devpriv->iobase_a + AMCC_OP_REG_INTCSR);
 }
 
-static void pci9118_timer_write(struct comedi_device *dev,
-				unsigned int timer, unsigned int val)
-{
-	outl(val & 0xff, dev->iobase + PCI9118_TIMER_REG(timer));
-	outl((val >> 8) & 0xff, dev->iobase + PCI9118_TIMER_REG(timer));
-}
-
-static void pci9118_timer_set_mode(struct comedi_device *dev,
-				   unsigned int timer, unsigned int mode)
-{
-	unsigned int val;
-
-	val = timer << 6;	/* select timer */
-	val |= 0x30;		/* load low then high byte */
-	val |= mode;		/* set timer mode and BCD|binary */
-	outl(val, dev->iobase + PCI9118_TIMER_CTRL_REG);
-}
-
 static void pci9118_ai_reset_fifo(struct comedi_device *dev)
 {
 	/* writing any value resets the A/D FIFO */
@@ -440,8 +415,8 @@ static void interrupt_pci9118_ai_mode4_switch(struct comedi_device *dev,
 	devpriv->ai_cfg = PCI9118_AI_CFG_PDTRG | PCI9118_AI_CFG_PETRG |
 			  PCI9118_AI_CFG_AM;
 	outl(devpriv->ai_cfg, dev->iobase + PCI9118_AI_CFG_REG);
-	pci9118_timer_set_mode(dev, 0, I8254_MODE0);
-	pci9118_timer_write(dev, 0, dmabuf->hw >> 1);
+	comedi_8254_load(dev->pacer, 0, dmabuf->hw >> 1,
+			 I8254_MODE0 | I8254_BINARY);
 	devpriv->ai_cfg |= PCI9118_AI_CFG_START;
 	outl(devpriv->ai_cfg, dev->iobase + PCI9118_AI_CFG_REG);
 }
@@ -577,15 +552,16 @@ static void pci9118_calc_divisors(struct comedi_device *dev,
 				  unsigned int *div1, unsigned int *div2,
 				  unsigned int chnsshfront)
 {
+	struct comedi_8254 *pacer = dev->pacer;
 	struct comedi_cmd *cmd = &s->async->cmd;
 
-	*div1 = *tim2 / I8254_OSC_BASE_4MHZ;	/* convert timer (burst) */
-	*div2 = *tim1 / I8254_OSC_BASE_4MHZ;	/* scan timer */
+	*div1 = *tim2 / pacer->osc_base;	/* convert timer (burst) */
+	*div2 = *tim1 / pacer->osc_base;	/* scan timer */
 	*div2 = *div2 / *div1;			/* major timer is c1*c2 */
 	if (*div2 < chans)
 		*div2 = chans;
 
-	*tim2 = *div1 * I8254_OSC_BASE_4MHZ;	/* real convert timer */
+	*tim2 = *div1 * pacer->osc_base;	/* real convert timer */
 
 	if (cmd->convert_src == TRIG_NOW && !chnsshfront) {
 		/* use BSSH signal */
@@ -593,21 +569,13 @@ static void pci9118_calc_divisors(struct comedi_device *dev,
 			*div2 = chans + 2;
 	}
 
-	*tim1 = *div1 * *div2 * I8254_OSC_BASE_4MHZ;
+	*tim1 = *div1 * *div2 * pacer->osc_base;
 }
 
 static void pci9118_start_pacer(struct comedi_device *dev, int mode)
 {
-	struct pci9118_private *devpriv = dev->private;
-
-	pci9118_timer_set_mode(dev, 1, I8254_MODE2);
-	pci9118_timer_set_mode(dev, 2, I8254_MODE2);
-	udelay(1);
-
-	if ((mode == 1) || (mode == 2) || (mode == 4)) {
-		pci9118_timer_write(dev, 2, devpriv->ai_divisor2);
-		pci9118_timer_write(dev, 1, devpriv->ai_divisor1);
-	}
+	if (mode == 1 || mode == 2 || mode == 4)
+		comedi_8254_pacer_enable(dev->pacer, 1, 2, true);
 }
 
 static int pci9118_ai_cancel(struct comedi_device *dev,
@@ -618,7 +586,7 @@ static int pci9118_ai_cancel(struct comedi_device *dev,
 	if (devpriv->usedma)
 		pci9118_amcc_dma_ena(dev, false);
 	pci9118_exttrg_enable(dev, false);
-	pci9118_start_pacer(dev, 0);	/* stop 8254 counters */
+	comedi_8254_pacer_enable(dev->pacer, 1, 2, false);
 	/* set default config (disable burst and triggers) */
 	devpriv->ai_cfg = PCI9118_AI_CFG_PDTRG | PCI9118_AI_CFG_PETRG;
 	outl(devpriv->ai_cfg, dev->iobase + PCI9118_AI_CFG_REG);
@@ -663,7 +631,6 @@ static void pci9118_ai_munge(struct comedi_device *dev,
 			array[i] ^= 0x8000;
 		else
 			array[i] = (array[i] >> 4) & 0x0fff;
-
 	}
 }
 
@@ -966,7 +933,7 @@ static int Compute_and_setup_dma(struct comedi_device *dev,
 /* outl(0x02000000|AINT_WRITE_COMPL, devpriv->iobase_a+AMCC_OP_REG_INTCSR); */
 	pci9118_amcc_dma_ena(dev, true);
 	outl(inl(devpriv->iobase_a + AMCC_OP_REG_INTCSR) | EN_A2P_TRANSFERS,
-			devpriv->iobase_a + AMCC_OP_REG_INTCSR);
+	     devpriv->iobase_a + AMCC_OP_REG_INTCSR);
 						/* allow bus mastering */
 
 	return 0;
@@ -975,6 +942,7 @@ static int Compute_and_setup_dma(struct comedi_device *dev,
 static int pci9118_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 {
 	struct pci9118_private *devpriv = dev->private;
+	struct comedi_8254 *pacer = dev->pacer;
 	struct comedi_cmd *cmd = &s->async->cmd;
 	unsigned int addchans = 0;
 
@@ -1093,12 +1061,10 @@ static int pci9118_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 		else
 			devpriv->ai_do = 1;
 
-		i8253_cascade_ns_to_timer(I8254_OSC_BASE_4MHZ,
-					  &devpriv->ai_divisor1,
-					  &devpriv->ai_divisor2,
-					  &cmd->convert_arg,
-					  devpriv->ai_flags &
-					  CMDF_ROUND_NEAREST);
+		comedi_8254_cascade_ns_to_timer(pacer, &cmd->convert_arg,
+						devpriv->ai_flags &
+						CMDF_ROUND_NEAREST);
+		comedi_8254_update_divisors(pacer);
 
 		devpriv->ai_ctrl |= PCI9118_AI_CTRL_TMRTR;
 
@@ -1112,8 +1078,8 @@ static int pci9118_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 
 			devpriv->ai_cfg |= PCI9118_AI_CFG_AM;
 			outl(devpriv->ai_cfg, dev->iobase + PCI9118_AI_CFG_REG);
-			pci9118_timer_set_mode(dev, 0, I8254_MODE0);
-			pci9118_timer_write(dev, 0, dmabuf->hw >> 1);
+			comedi_8254_load(pacer, 0, dmabuf->hw >> 1,
+					 I8254_MODE0 | I8254_BINARY);
 			devpriv->ai_cfg |= PCI9118_AI_CFG_START;
 		}
 	}
@@ -1133,8 +1099,8 @@ static int pci9118_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 				      &cmd->scan_begin_arg, &cmd->convert_arg,
 				      devpriv->ai_flags,
 				      devpriv->ai_n_realscanlen,
-				      &devpriv->ai_divisor1,
-				      &devpriv->ai_divisor2,
+				      &pacer->divisor1,
+				      &pacer->divisor2,
 				      devpriv->ai_add_front);
 
 		devpriv->ai_ctrl |= PCI9118_AI_CTRL_TMRTR;
@@ -1162,8 +1128,6 @@ static int pci9118_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 	if (devpriv->usedma)
 		devpriv->ai_ctrl |= PCI9118_AI_CTRL_DMA;
 
-	pci9118_start_pacer(dev, -1);	/* stop pacer */
-
 	/* set default config (disable burst and triggers) */
 	devpriv->ai_cfg = PCI9118_AI_CFG_PDTRG | PCI9118_AI_CFG_PETRG;
 	outl(devpriv->ai_cfg, dev->iobase + PCI9118_AI_CFG_REG);
@@ -1206,25 +1170,24 @@ static int pci9118_ai_cmdtest(struct comedi_device *dev,
 	int err = 0;
 	unsigned int flags;
 	unsigned int arg;
-	unsigned int divisor1 = 0, divisor2 = 0;
 
 	/* Step 1 : check if triggers are trivially valid */
 
-	err |= cfc_check_trigger_src(&cmd->start_src,
+	err |= comedi_check_trigger_src(&cmd->start_src,
 					TRIG_NOW | TRIG_EXT | TRIG_INT);
 
 	flags = TRIG_FOLLOW;
 	if (devpriv->master)
 		flags |= TRIG_TIMER | TRIG_EXT;
-	err |= cfc_check_trigger_src(&cmd->scan_begin_src, flags);
+	err |= comedi_check_trigger_src(&cmd->scan_begin_src, flags);
 
 	flags = TRIG_TIMER | TRIG_EXT;
 	if (devpriv->master)
 		flags |= TRIG_NOW;
-	err |= cfc_check_trigger_src(&cmd->convert_src, flags);
+	err |= comedi_check_trigger_src(&cmd->convert_src, flags);
 
-	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= cfc_check_trigger_src(&cmd->stop_src,
+	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= comedi_check_trigger_src(&cmd->stop_src,
 					TRIG_COUNT | TRIG_NONE | TRIG_EXT);
 
 	if (err)
@@ -1232,10 +1195,10 @@ static int pci9118_ai_cmdtest(struct comedi_device *dev,
 
 	/* Step 2a : make sure trigger sources are unique */
 
-	err |= cfc_check_trigger_is_unique(cmd->start_src);
-	err |= cfc_check_trigger_is_unique(cmd->scan_begin_src);
-	err |= cfc_check_trigger_is_unique(cmd->convert_src);
-	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+	err |= comedi_check_trigger_is_unique(cmd->start_src);
+	err |= comedi_check_trigger_is_unique(cmd->scan_begin_src);
+	err |= comedi_check_trigger_is_unique(cmd->convert_src);
+	err |= comedi_check_trigger_is_unique(cmd->stop_src);
 
 	/* Step 2b : and mutually compatible */
 
@@ -1264,7 +1227,7 @@ static int pci9118_ai_cmdtest(struct comedi_device *dev,
 	switch (cmd->start_src) {
 	case TRIG_NOW:
 	case TRIG_EXT:
-		err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
 		break;
 	case TRIG_INT:
 		/* start_arg is the internal trigger (any value) */
@@ -1272,7 +1235,7 @@ static int pci9118_ai_cmdtest(struct comedi_device *dev,
 	}
 
 	if (cmd->scan_begin_src & (TRIG_FOLLOW | TRIG_EXT))
-		err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
 
 	if ((cmd->scan_begin_src == TRIG_TIMER) &&
 	    (cmd->convert_src == TRIG_TIMER) && (cmd->scan_end_arg == 1)) {
@@ -1281,34 +1244,37 @@ static int pci9118_ai_cmdtest(struct comedi_device *dev,
 		cmd->scan_begin_arg = 0;
 	}
 
-	if (cmd->scan_begin_src == TRIG_TIMER)
-		err |= cfc_check_trigger_arg_min(&cmd->scan_begin_arg,
-						 devpriv->ai_ns_min);
+	if (cmd->scan_begin_src == TRIG_TIMER) {
+		err |= comedi_check_trigger_arg_min(&cmd->scan_begin_arg,
+						    devpriv->ai_ns_min);
+	}
 
-	if (cmd->scan_begin_src == TRIG_EXT)
+	if (cmd->scan_begin_src == TRIG_EXT) {
 		if (cmd->scan_begin_arg) {
 			cmd->scan_begin_arg = 0;
 			err |= -EINVAL;
-			err |= cfc_check_trigger_arg_max(&cmd->scan_end_arg,
-							 65535);
+			err |= comedi_check_trigger_arg_max(&cmd->scan_end_arg,
+							    65535);
 		}
+	}
 
-	if (cmd->convert_src & (TRIG_TIMER | TRIG_NOW))
-		err |= cfc_check_trigger_arg_min(&cmd->convert_arg,
-						 devpriv->ai_ns_min);
+	if (cmd->convert_src & (TRIG_TIMER | TRIG_NOW)) {
+		err |= comedi_check_trigger_arg_min(&cmd->convert_arg,
+						    devpriv->ai_ns_min);
+	}
 
 	if (cmd->convert_src == TRIG_EXT)
-		err |= cfc_check_trigger_arg_is(&cmd->convert_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->convert_arg, 0);
 
 	if (cmd->stop_src == TRIG_COUNT)
-		err |= cfc_check_trigger_arg_min(&cmd->stop_arg, 1);
+		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
 	else	/* TRIG_NONE */
-		err |= cfc_check_trigger_arg_is(&cmd->stop_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
 
-	err |= cfc_check_trigger_arg_min(&cmd->chanlist_len, 1);
+	err |= comedi_check_trigger_arg_min(&cmd->chanlist_len, 1);
 
-	err |= cfc_check_trigger_arg_min(&cmd->scan_end_arg,
-					 cmd->chanlist_len);
+	err |= comedi_check_trigger_arg_min(&cmd->scan_end_arg,
+					    cmd->chanlist_len);
 
 	if ((cmd->scan_end_arg % cmd->chanlist_len)) {
 		cmd->scan_end_arg =
@@ -1323,18 +1289,14 @@ static int pci9118_ai_cmdtest(struct comedi_device *dev,
 
 	if (cmd->scan_begin_src == TRIG_TIMER) {
 		arg = cmd->scan_begin_arg;
-		i8253_cascade_ns_to_timer(I8254_OSC_BASE_4MHZ,
-					  &divisor1, &divisor2,
-					  &arg, cmd->flags);
-		err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, arg);
+		comedi_8254_cascade_ns_to_timer(dev->pacer, &arg, cmd->flags);
+		err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, arg);
 	}
 
 	if (cmd->convert_src & (TRIG_TIMER | TRIG_NOW)) {
 		arg = cmd->convert_arg;
-		i8253_cascade_ns_to_timer(I8254_OSC_BASE_4MHZ,
-					  &divisor1, &divisor2,
-					  &arg, cmd->flags);
-		err |= cfc_check_trigger_arg_is(&cmd->convert_arg, arg);
+		comedi_8254_cascade_ns_to_timer(dev->pacer, &arg, cmd->flags);
+		err |= comedi_check_trigger_arg_is(&cmd->convert_arg, arg);
 
 		if (cmd->scan_begin_src == TRIG_TIMER &&
 		    cmd->convert_src == TRIG_NOW) {
@@ -1344,8 +1306,9 @@ static int pci9118_ai_cmdtest(struct comedi_device *dev,
 			} else {
 				arg = cmd->convert_arg * cmd->chanlist_len;
 			}
-			err |= cfc_check_trigger_arg_min(&cmd->scan_begin_arg,
-							 arg);
+			err |= comedi_check_trigger_arg_min(&cmd->
+							    scan_begin_arg,
+							    arg);
 		}
 	}
 
@@ -1482,10 +1445,6 @@ static void pci9118_reset(struct comedi_device *dev)
 	inl(dev->iobase + PCI9118_INT_CTRL_REG);
 	inl(dev->iobase + PCI9118_AI_STATUS_REG);
 
-	/* reset and stop counters */
-	pci9118_timer_set_mode(dev, 0, I8254_MODE0);
-	pci9118_start_pacer(dev, 0);
-
 	/* reset DMA and scan queue */
 	outl(0, dev->iobase + PCI9118_AI_BURST_NUM_REG);
 	outl(1, dev->iobase + PCI9118_AI_AUTOSCAN_MODE_REG);
@@ -1590,6 +1549,11 @@ static int pci9118_common_attach(struct comedi_device *dev,
 	devpriv->iobase_a = pci_resource_start(pcidev, 0);
 	dev->iobase = pci_resource_start(pcidev, 2);
 
+	dev->pacer = comedi_8254_init(dev->iobase + PCI9118_TIMER_BASE,
+				      I8254_OSC_BASE_4MHZ, I8254_IO32, 0);
+	if (!dev->pacer)
+		return -ENOMEM;
+
 	pci9118_reset(dev);
 
 	if (pcidev->irq) {
diff --git a/drivers/staging/comedi/drivers/adq12b.c b/drivers/staging/comedi/drivers/adq12b.c
index 8b15cbe..bc5f97f 100644
--- a/drivers/staging/comedi/drivers/adq12b.c
+++ b/drivers/staging/comedi/drivers/adq12b.c
@@ -69,8 +69,6 @@ If you do not specify any options, they will default to
 
    13-oct-2007
      + first try
-
-
 */
 
 #include <linux/module.h>
@@ -170,7 +168,6 @@ static int adq12b_di_insn_bits(struct comedi_device *dev,
 			       struct comedi_subdevice *s,
 			       struct comedi_insn *insn, unsigned int *data)
 {
-
 	/* only bits 0-4 have information about digital inputs */
 	data[1] = (inb(dev->iobase + ADQ12B_STINR) & ADQ12B_STINR_IN_MASK);
 
diff --git a/drivers/staging/comedi/drivers/adv_pci1710.c b/drivers/staging/comedi/drivers/adv_pci1710.c
index 9800c01..0c6aa96 100644
--- a/drivers/staging/comedi/drivers/adv_pci1710.c
+++ b/drivers/staging/comedi/drivers/adv_pci1710.c
@@ -4,7 +4,7 @@
  * Author: Michal Dobes <dobes@tesnet.cz>
  *
  * Thanks to ZhenGang Shang <ZhenGang.Shang@Advantech.com.cn>
- * for testing and informations.
+ * for testing and information.
  *
  *  hardware driver for Advantech cards:
  *   card:   PCI-1710, PCI-1710HG, PCI-1711, PCI-1713, PCI-1720, PCI-1731
@@ -42,13 +42,11 @@ Configuration options:
 */
 
 #include <linux/module.h>
-#include <linux/pci.h>
 #include <linux/interrupt.h>
 
-#include "../comedidev.h"
+#include "../comedi_pci.h"
 
-#include "comedi_fc.h"
-#include "8253.h"
+#include "comedi_8254.h"
 #include "amcc_s5933.h"
 
 #define PCI171x_AD_DATA	 0	/* R:   A/D data */
@@ -67,11 +65,6 @@ Configuration options:
 
 #define PCI171X_TIMER_BASE	0x18
 
-#define PCI171x_CNT0	24	/* R/W: 8254 counter 0 */
-#define PCI171x_CNT1	26	/* R/W: 8254 counter 1 */
-#define PCI171x_CNT2	28	/* R/W: 8254 counter 2 */
-#define PCI171x_CNTCTRL	30	/* W:   8254 counter control */
-
 /* upper bits from status register (PCI171x_STATUS) (lower is same with control
  * reg) */
 #define	Status_FE	0x0100	/* 1=FIFO is empty */
@@ -87,16 +80,6 @@ Configuration options:
 #define Control_EXT	0x0004	/* 1=external trigger source */
 #define Control_PACER	0x0002	/* 1=enable internal 8254 trigger source */
 #define Control_SW	0x0001	/* 1=enable software trigger source */
-/* bits from counter control register (PCI171x_CNTCTRL) */
-#define Counter_BCD     0x0001	/* 0 = binary counter, 1 = BCD counter */
-#define Counter_M0      0x0002	/* M0-M2 select modes 0-5 */
-#define Counter_M1      0x0004	/* 000 = mode 0, 010 = mode 2 ... */
-#define Counter_M2      0x0008
-#define Counter_RW0     0x0010	/* RW0/RW1 select read/write mode */
-#define Counter_RW1     0x0020
-#define Counter_SC0     0x0040	/* Select Counter. Only 00 or 11 may */
-#define Counter_SC1     0x0080	/* be used, 00 for CNT0,
-				 * 11 for read-back command */
 
 #define PCI1720_DA0	 0	/* W:   D/A register 0 */
 #define PCI1720_DA1	 2	/* W:   D/A register 1 */
@@ -265,15 +248,9 @@ struct pci1710_private {
 	unsigned char ai_et;
 	unsigned int ai_et_CntrlReg;
 	unsigned int ai_et_MuxVal;
-	unsigned int next_divisor1;
-	unsigned int next_divisor2;
-	unsigned int divisor1;
-	unsigned int divisor2;
 	unsigned int act_chanlist[32];	/*  list of scanned channel */
 	unsigned char saved_seglen;	/* len of the non-repeating chanlist */
 	unsigned char da_ranges;	/*  copy of D/A outpit range register */
-	unsigned int cnt0_write_wait;	/* after a write, wait for update of the
-					 * internal state */
 };
 
 static int pci171x_ai_check_chanlist(struct comedi_device *dev,
@@ -426,7 +403,6 @@ static int pci171x_ai_insn_read(struct comedi_device *dev,
 				unsigned int *data)
 {
 	struct pci1710_private *devpriv = dev->private;
-	unsigned int chan = CR_CHAN(insn->chanspec);
 	int ret = 0;
 	int i;
 
@@ -447,7 +423,7 @@ static int pci171x_ai_insn_read(struct comedi_device *dev,
 		if (ret)
 			break;
 
-		ret = pci171x_ai_read_sample(dev, s, chan, &val);
+		ret = pci171x_ai_read_sample(dev, s, 0, &val);
 		if (ret)
 			break;
 
@@ -509,105 +485,6 @@ static int pci171x_do_insn_bits(struct comedi_device *dev,
 	return insn->n;
 }
 
-static void pci171x_start_pacer(struct comedi_device *dev,
-				bool load_counters)
-{
-	struct pci1710_private *devpriv = dev->private;
-	unsigned long timer_base = dev->iobase + PCI171X_TIMER_BASE;
-
-	i8254_set_mode(timer_base, 1, 2, I8254_MODE2 | I8254_BINARY);
-	i8254_set_mode(timer_base, 1, 1, I8254_MODE2 | I8254_BINARY);
-
-	if (load_counters) {
-		i8254_write(timer_base, 1, 2, devpriv->divisor2);
-		i8254_write(timer_base, 1, 1, devpriv->divisor1);
-	}
-}
-
-static int pci171x_counter_insn_read(struct comedi_device *dev,
-				     struct comedi_subdevice *s,
-				     struct comedi_insn *insn,
-				     unsigned int *data)
-{
-	unsigned int msb, lsb, ccntrl;
-	int i;
-
-	ccntrl = 0xD2;		/* count only */
-	for (i = 0; i < insn->n; i++) {
-		outw(ccntrl, dev->iobase + PCI171x_CNTCTRL);
-
-		lsb = inw(dev->iobase + PCI171x_CNT0) & 0xFF;
-		msb = inw(dev->iobase + PCI171x_CNT0) & 0xFF;
-
-		data[0] = lsb | (msb << 8);
-	}
-
-	return insn->n;
-}
-
-static int pci171x_counter_insn_write(struct comedi_device *dev,
-				      struct comedi_subdevice *s,
-				      struct comedi_insn *insn,
-				      unsigned int *data)
-{
-	struct pci1710_private *devpriv = dev->private;
-	uint msb, lsb, ccntrl, status;
-
-	lsb = data[0] & 0x00FF;
-	msb = (data[0] & 0xFF00) >> 8;
-
-	/* write lsb, then msb */
-	outw(lsb, dev->iobase + PCI171x_CNT0);
-	outw(msb, dev->iobase + PCI171x_CNT0);
-
-	if (devpriv->cnt0_write_wait) {
-		/* wait for the new count to be loaded */
-		ccntrl = 0xE2;
-		do {
-			outw(ccntrl, dev->iobase + PCI171x_CNTCTRL);
-			status = inw(dev->iobase + PCI171x_CNT0) & 0xFF;
-		} while (status & 0x40);
-	}
-
-	return insn->n;
-}
-
-static int pci171x_counter_insn_config(struct comedi_device *dev,
-				       struct comedi_subdevice *s,
-				       struct comedi_insn *insn,
-				       unsigned int *data)
-{
-#ifdef unused
-	/* This doesn't work like a normal Comedi counter config */
-	struct pci1710_private *devpriv = dev->private;
-	uint ccntrl = 0;
-
-	devpriv->cnt0_write_wait = data[0] & 0x20;
-
-	/* internal or external clock? */
-	if (!(data[0] & 0x10)) {	/* internal */
-		devpriv->CntrlReg &= ~Control_CNT0;
-	} else {
-		devpriv->CntrlReg |= Control_CNT0;
-	}
-	outw(devpriv->CntrlReg, dev->iobase + PCI171x_CONTROL);
-
-	if (data[0] & 0x01)
-		ccntrl |= Counter_M0;
-	if (data[0] & 0x02)
-		ccntrl |= Counter_M1;
-	if (data[0] & 0x04)
-		ccntrl |= Counter_M2;
-	if (data[0] & 0x08)
-		ccntrl |= Counter_BCD;
-	ccntrl |= Counter_RW0;	/* set read/write mode */
-	ccntrl |= Counter_RW1;
-	outw(ccntrl, dev->iobase + PCI171x_CNTCTRL);
-#endif
-
-	return 1;
-}
-
 static int pci1720_ao_insn_write(struct comedi_device *dev,
 				 struct comedi_subdevice *s,
 				 struct comedi_insn *insn,
@@ -647,7 +524,7 @@ static int pci171x_ai_cancel(struct comedi_device *dev,
 	devpriv->CntrlReg |= Control_SW;
 	/* reset any operations */
 	outw(devpriv->CntrlReg, dev->iobase + PCI171x_CONTROL);
-	pci171x_start_pacer(dev, false);
+	comedi_8254_pacer_enable(dev->pacer, 1, 2, false);
 	outb(0, dev->iobase + PCI171x_CLRFIFO);
 	outb(0, dev->iobase + PCI171x_CLRINT);
 
@@ -768,7 +645,7 @@ static irqreturn_t interrupt_service_pci1710(int irq, void *d)
 		outb(0, dev->iobase + PCI171x_CLRINT);
 		outw(devpriv->ai_et_MuxVal, dev->iobase + PCI171x_MUX);
 		outw(devpriv->CntrlReg, dev->iobase + PCI171x_CONTROL);
-		pci171x_start_pacer(dev, true);
+		comedi_8254_pacer_enable(dev->pacer, 1, 2, true);
 		return IRQ_HANDLED;
 	}
 
@@ -787,8 +664,6 @@ static int pci171x_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 	struct pci1710_private *devpriv = dev->private;
 	struct comedi_cmd *cmd = &s->async->cmd;
 
-	pci171x_start_pacer(dev, false);
-
 	pci171x_ai_setup_chanlist(dev, s, cmd->chanlist, cmd->chanlist_len,
 				  devpriv->saved_seglen);
 
@@ -799,10 +674,9 @@ static int pci171x_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 	if ((cmd->flags & CMDF_WAKE_EOS) == 0)
 		devpriv->CntrlReg |= Control_ONEFH;
 
-	devpriv->divisor1 = devpriv->next_divisor1;
-	devpriv->divisor2 = devpriv->next_divisor2;
-
 	if (cmd->convert_src == TRIG_TIMER) {
+		comedi_8254_update_divisors(dev->pacer);
+
 		devpriv->CntrlReg |= Control_PACER | Control_IRQEN;
 		if (cmd->start_src == TRIG_EXT) {
 			devpriv->ai_et_CntrlReg = devpriv->CntrlReg;
@@ -816,7 +690,7 @@ static int pci171x_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 		outw(devpriv->CntrlReg, dev->iobase + PCI171x_CONTROL);
 
 		if (cmd->start_src == TRIG_NOW)
-			pci171x_start_pacer(dev, true);
+			comedi_8254_pacer_enable(dev->pacer, 1, 2, true);
 	} else {	/* TRIG_EXT */
 		devpriv->CntrlReg |= Control_EXT | Control_IRQEN;
 		outw(devpriv->CntrlReg, dev->iobase + PCI171x_CONTROL);
@@ -829,26 +703,25 @@ static int pci171x_ai_cmdtest(struct comedi_device *dev,
 			      struct comedi_subdevice *s,
 			      struct comedi_cmd *cmd)
 {
-	struct pci1710_private *devpriv = dev->private;
 	int err = 0;
-	unsigned int arg;
 
 	/* Step 1 : check if triggers are trivially valid */
 
-	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_EXT);
-	err |= cfc_check_trigger_src(&cmd->scan_begin_src, TRIG_FOLLOW);
-	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_TIMER | TRIG_EXT);
-	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
+	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_EXT);
+	err |= comedi_check_trigger_src(&cmd->scan_begin_src, TRIG_FOLLOW);
+	err |= comedi_check_trigger_src(&cmd->convert_src,
+					TRIG_TIMER | TRIG_EXT);
+	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
 	/* step 2a: make sure trigger sources are unique */
 
-	err |= cfc_check_trigger_is_unique(cmd->start_src);
-	err |= cfc_check_trigger_is_unique(cmd->convert_src);
-	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+	err |= comedi_check_trigger_is_unique(cmd->start_src);
+	err |= comedi_check_trigger_is_unique(cmd->convert_src);
+	err |= comedi_check_trigger_is_unique(cmd->stop_src);
 
 	/* step 2b: and mutually compatible */
 
@@ -857,20 +730,21 @@ static int pci171x_ai_cmdtest(struct comedi_device *dev,
 
 	/* Step 3: check if arguments are trivially valid */
 
-	err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0);
-	err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
 
 	if (cmd->convert_src == TRIG_TIMER)
-		err |= cfc_check_trigger_arg_min(&cmd->convert_arg, 10000);
+		err |= comedi_check_trigger_arg_min(&cmd->convert_arg, 10000);
 	else	/* TRIG_FOLLOW */
-		err |= cfc_check_trigger_arg_is(&cmd->convert_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->convert_arg, 0);
 
-	err |= cfc_check_trigger_arg_is(&cmd->scan_end_arg, cmd->chanlist_len);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
+					   cmd->chanlist_len);
 
 	if (cmd->stop_src == TRIG_COUNT)
-		err |= cfc_check_trigger_arg_min(&cmd->stop_arg, 1);
+		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
 	else	/* TRIG_NONE */
-		err |= cfc_check_trigger_arg_is(&cmd->stop_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
 
 	if (err)
 		return 3;
@@ -878,12 +752,10 @@ static int pci171x_ai_cmdtest(struct comedi_device *dev,
 	/* step 4: fix up any arguments */
 
 	if (cmd->convert_src == TRIG_TIMER) {
-		arg = cmd->convert_arg;
-		i8253_cascade_ns_to_timer(I8254_OSC_BASE_10MHZ,
-					  &devpriv->next_divisor1,
-					  &devpriv->next_divisor2,
-					  &arg, cmd->flags);
-		err |= cfc_check_trigger_arg_is(&cmd->convert_arg, arg);
+		unsigned int arg = cmd->convert_arg;
+
+		comedi_8254_cascade_ns_to_timer(dev->pacer, &arg, cmd->flags);
+		err |= comedi_check_trigger_arg_is(&cmd->convert_arg, arg);
 	}
 
 	if (err)
@@ -899,19 +771,54 @@ static int pci171x_ai_cmdtest(struct comedi_device *dev,
 	return 0;
 }
 
+static int pci171x_insn_counter_config(struct comedi_device *dev,
+				       struct comedi_subdevice *s,
+				       struct comedi_insn *insn,
+				       unsigned int *data)
+{
+	struct pci1710_private *devpriv = dev->private;
+
+	switch (data[0]) {
+	case INSN_CONFIG_SET_CLOCK_SRC:
+		switch (data[1]) {
+		case 0:	/* internal */
+			devpriv->ai_et_CntrlReg &= ~Control_CNT0;
+			break;
+		case 1:	/* external */
+			devpriv->ai_et_CntrlReg |= Control_CNT0;
+			break;
+		default:
+			return -EINVAL;
+		}
+		outw(devpriv->ai_et_CntrlReg, dev->iobase + PCI171x_CONTROL);
+		break;
+	case INSN_CONFIG_GET_CLOCK_SRC:
+		if (devpriv->ai_et_CntrlReg & Control_CNT0) {
+			data[1] = 1;
+			data[2] = 0;
+		} else {
+			data[1] = 0;
+			data[2] = I8254_OSC_BASE_10MHZ;
+		}
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return insn->n;
+}
+
 static int pci171x_reset(struct comedi_device *dev)
 {
 	const struct boardtype *board = dev->board_ptr;
 	struct pci1710_private *devpriv = dev->private;
 
-	outw(0x30, dev->iobase + PCI171x_CNTCTRL);
 	/* Software trigger, CNT0=external */
 	devpriv->CntrlReg = Control_SW | Control_CNT0;
 	/* reset any operations */
 	outw(devpriv->CntrlReg, dev->iobase + PCI171x_CONTROL);
 	outb(0, dev->iobase + PCI171x_CLRFIFO);	/*  clear FIFO */
 	outb(0, dev->iobase + PCI171x_CLRINT);	/*  clear INT request */
-	pci171x_start_pacer(dev, false);
 	devpriv->da_ranges = 0;
 	if (board->has_ao) {
 		/* set DACs to 0..5V */
@@ -978,6 +885,11 @@ static int pci1710_auto_attach(struct comedi_device *dev,
 		return ret;
 	dev->iobase = pci_resource_start(pcidev, 2);
 
+	dev->pacer = comedi_8254_init(dev->iobase + PCI171X_TIMER_BASE,
+				      I8254_OSC_BASE_10MHZ, I8254_IO16, 0);
+	if (!dev->pacer)
+		return -ENOMEM;
+
 	n_subdevices = 0;
 	if (board->n_aichan)
 		n_subdevices++;
@@ -1074,16 +986,17 @@ static int pci1710_auto_attach(struct comedi_device *dev,
 		subdev++;
 	}
 
+	/* Counter subdevice (8254) */
 	if (board->has_counter) {
 		s = &dev->subdevices[subdev];
-		s->type		= COMEDI_SUBD_COUNTER;
-		s->subdev_flags	= SDF_READABLE | SDF_WRITABLE;
-		s->n_chan	= 1;
-		s->maxdata	= 0xffff;
-		s->range_table	= &range_unknown;
-		s->insn_read	= pci171x_counter_insn_read;
-		s->insn_write	= pci171x_counter_insn_write;
-		s->insn_config	= pci171x_counter_insn_config;
+		comedi_8254_subdevice_init(s, dev->pacer);
+
+		dev->pacer->insn_config = pci171x_insn_counter_config;
+
+		/* counters 1 and 2 are used internally for the pacer */
+		comedi_8254_set_busy(dev->pacer, 1, true);
+		comedi_8254_set_busy(dev->pacer, 2, true);
+
 		subdev++;
 	}
 
diff --git a/drivers/staging/comedi/drivers/adv_pci1723.c b/drivers/staging/comedi/drivers/adv_pci1723.c
index f1945be..1921a97 100644
--- a/drivers/staging/comedi/drivers/adv_pci1723.c
+++ b/drivers/staging/comedi/drivers/adv_pci1723.c
@@ -41,9 +41,8 @@
  */
 
 #include <linux/module.h>
-#include <linux/pci.h>
 
-#include "../comedidev.h"
+#include "../comedi_pci.h"
 
 /*
  * PCI Bar 2 I/O Register map (dev->iobase)
diff --git a/drivers/staging/comedi/drivers/adv_pci1724.c b/drivers/staging/comedi/drivers/adv_pci1724.c
index a3573ea..f7a7dab 100644
--- a/drivers/staging/comedi/drivers/adv_pci1724.c
+++ b/drivers/staging/comedi/drivers/adv_pci1724.c
@@ -47,9 +47,8 @@
  */
 
 #include <linux/module.h>
-#include <linux/pci.h>
 
-#include "../comedidev.h"
+#include "../comedi_pci.h"
 
 /*
  * PCI bar 2 Register I/O map (dev->iobase)
diff --git a/drivers/staging/comedi/drivers/adv_pci_dio.c b/drivers/staging/comedi/drivers/adv_pci_dio.c
index 09609d6..456e870 100644
--- a/drivers/staging/comedi/drivers/adv_pci_dio.c
+++ b/drivers/staging/comedi/drivers/adv_pci_dio.c
@@ -30,13 +30,12 @@ Configuration options:
 */
 
 #include <linux/module.h>
-#include <linux/pci.h>
 #include <linux/delay.h>
 
-#include "../comedidev.h"
+#include "../comedi_pci.h"
 
 #include "8255.h"
-#include "8253.h"
+#include "comedi_8254.h"
 
 /* hardware types of the cards */
 enum hw_cards_id {
@@ -60,12 +59,6 @@ enum hw_io_access {
 #define MAX_DO_SUBDEVS	2	/* max number of DO subdevices per card */
 #define MAX_DIO_SUBDEVG	2	/* max number of DIO subdevices group per
 				 * card */
-#define MAX_8254_SUBDEVS   1	/* max number of 8254 counter subdevs per
-				 * card */
-				/* (could be more than one 8254 per
-				 * subdevice) */
-
-#define SIZE_8254	   4	/* 8254 IO space length */
 
 #define PCIDIO_MAINREG	   2	/* main I/O region for all Advantech cards? */
 
@@ -230,7 +223,7 @@ struct diosubd_data {
 	int chans;		/*  num of chans */
 	int addr;		/*  PCI address ofset */
 	int regs;		/*  number of registers to read or 8255
-				    subdevices or 8254 chips */
+				    subdevices */
 	unsigned int specflags;	/*  addon subdevice flags */
 };
 
@@ -243,7 +236,7 @@ struct dio_boardtype {
 	struct diosubd_data sdo[MAX_DO_SUBDEVS];	/*  DO chans */
 	struct diosubd_data sdio[MAX_DIO_SUBDEVG];	/*  DIO 8255 chans */
 	struct diosubd_data boardid;	/*  card supports board ID switch */
-	struct diosubd_data s8254[MAX_8254_SUBDEVS];	/* 8254 subdevices */
+	unsigned long timer_regbase;
 	enum hw_io_access io_access;
 };
 
@@ -286,7 +279,7 @@ static const struct dio_boardtype boardtypes[] = {
 		.sdi[0]		= { 32, PCI1735_DI, 4, 0, },
 		.sdo[0]		= { 32, PCI1735_DO, 4, 0, },
 		.boardid	= { 4, PCI1735_BOARDID, 1, SDF_INTERNAL, },
-		.s8254[0]	= { 3, PCI1735_C8254, 1, 0, },
+		.timer_regbase	= PCI1735_C8254,
 		.io_access	= IO_8b,
 	},
 	[TYPE_PCI1736] = {
@@ -322,7 +315,7 @@ static const struct dio_boardtype boardtypes[] = {
 		.cardtype	= TYPE_PCI1751,
 		.nsubdevs	= 3,
 		.sdio[0]	= { 48, PCI1751_DIO, 2, 0, },
-		.s8254[0]	= { 3, PCI1751_CNT, 1, 0, },
+		.timer_regbase	= PCI1751_CNT,
 		.io_access	= IO_8b,
 	},
 	[TYPE_PCI1752] = {
@@ -425,7 +418,6 @@ static int pci_dio_insn_bits_di_b(struct comedi_device *dev,
 	for (i = 0; i < d->regs; i++)
 		data[1] |= inb(dev->iobase + d->addr + i) << (8 * i);
 
-
 	return insn->n;
 }
 
@@ -487,83 +479,6 @@ static int pci_dio_insn_bits_do_w(struct comedi_device *dev,
 /*
 ==============================================================================
 */
-static int pci_8254_insn_read(struct comedi_device *dev,
-			      struct comedi_subdevice *s,
-			      struct comedi_insn *insn, unsigned int *data)
-{
-	const struct diosubd_data *d = (const struct diosubd_data *)s->private;
-	unsigned int chan, chip, chipchan;
-	unsigned long flags;
-
-	chan = CR_CHAN(insn->chanspec);	/* channel on subdevice */
-	chip = chan / 3;		/* chip on subdevice */
-	chipchan = chan - (3 * chip);	/* channel on chip on subdevice */
-	spin_lock_irqsave(&s->spin_lock, flags);
-	data[0] = i8254_read(dev->iobase + d->addr + (SIZE_8254 * chip),
-			0, chipchan);
-	spin_unlock_irqrestore(&s->spin_lock, flags);
-	return 1;
-}
-
-/*
-==============================================================================
-*/
-static int pci_8254_insn_write(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn, unsigned int *data)
-{
-	const struct diosubd_data *d = (const struct diosubd_data *)s->private;
-	unsigned int chan, chip, chipchan;
-	unsigned long flags;
-
-	chan = CR_CHAN(insn->chanspec);	/* channel on subdevice */
-	chip = chan / 3;		/* chip on subdevice */
-	chipchan = chan - (3 * chip);	/* channel on chip on subdevice */
-	spin_lock_irqsave(&s->spin_lock, flags);
-	i8254_write(dev->iobase + d->addr + (SIZE_8254 * chip),
-			0, chipchan, data[0]);
-	spin_unlock_irqrestore(&s->spin_lock, flags);
-	return 1;
-}
-
-/*
-==============================================================================
-*/
-static int pci_8254_insn_config(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn, unsigned int *data)
-{
-	const struct diosubd_data *d = (const struct diosubd_data *)s->private;
-	unsigned int chan, chip, chipchan;
-	unsigned long iobase;
-	int ret = 0;
-	unsigned long flags;
-
-	chan = CR_CHAN(insn->chanspec);	/* channel on subdevice */
-	chip = chan / 3;		/* chip on subdevice */
-	chipchan = chan - (3 * chip);	/* channel on chip on subdevice */
-	iobase = dev->iobase + d->addr + (SIZE_8254 * chip);
-	spin_lock_irqsave(&s->spin_lock, flags);
-	switch (data[0]) {
-	case INSN_CONFIG_SET_COUNTER_MODE:
-		ret = i8254_set_mode(iobase, 0, chipchan, data[1]);
-		if (ret < 0)
-			ret = -EINVAL;
-		break;
-	case INSN_CONFIG_8254_READ_STATUS:
-		data[1] = i8254_status(iobase, 0, chipchan);
-		break;
-	default:
-		ret = -EINVAL;
-		break;
-	}
-	spin_unlock_irqrestore(&s->spin_lock, flags);
-	return ret < 0 ? ret : insn->n;
-}
-
-/*
-==============================================================================
-*/
 static int pci1760_unchecked_mbxrequest(struct comedi_device *dev,
 					unsigned char *omb, unsigned char *imb,
 					int repeats)
@@ -845,9 +760,6 @@ static int pci_dio_reset(struct comedi_device *dev)
 		outb(0, dev->iobase + PCI1735_DO + 1);
 		outb(0, dev->iobase + PCI1735_DO + 2);
 		outb(0, dev->iobase + PCI1735_DO + 3);
-		i8254_set_mode(dev->iobase + PCI1735_C8254, 0, 0, I8254_MODE0);
-		i8254_set_mode(dev->iobase + PCI1735_C8254, 0, 1, I8254_MODE0);
-		i8254_set_mode(dev->iobase + PCI1735_C8254, 0, 2, I8254_MODE0);
 		break;
 
 	case TYPE_PCI1736:
@@ -1029,26 +941,6 @@ static int pci_dio_add_do(struct comedi_device *dev,
 	return 0;
 }
 
-/*
-==============================================================================
-*/
-static int pci_dio_add_8254(struct comedi_device *dev,
-			    struct comedi_subdevice *s,
-			    const struct diosubd_data *d)
-{
-	s->type = COMEDI_SUBD_COUNTER;
-	s->subdev_flags = SDF_WRITABLE | SDF_READABLE;
-	s->n_chan = d->chans;
-	s->maxdata = 65535;
-	s->len_chanlist = d->chans;
-	s->insn_read = pci_8254_insn_read;
-	s->insn_write = pci_8254_insn_write;
-	s->insn_config = pci_8254_insn_config;
-	s->private = (void *)d;
-
-	return 0;
-}
-
 static unsigned long pci_dio_override_cardtype(struct pci_dev *pcidev,
 					       unsigned long cardtype)
 {
@@ -1144,12 +1036,19 @@ static int pci_dio_auto_attach(struct comedi_device *dev,
 		subdev++;
 	}
 
-	for (i = 0; i < MAX_8254_SUBDEVS; i++)
-		if (this_board->s8254[i].chans) {
-			s = &dev->subdevices[subdev];
-			pci_dio_add_8254(dev, s, &this_board->s8254[i]);
-			subdev++;
-		}
+	if (this_board->timer_regbase) {
+		s = &dev->subdevices[subdev];
+
+		dev->pacer = comedi_8254_init(dev->iobase +
+					      this_board->timer_regbase,
+					      0, I8254_IO8, 0);
+		if (!dev->pacer)
+			return -ENOMEM;
+
+		comedi_8254_subdevice_init(s, dev->pacer);
+
+		subdev++;
+	}
 
 	if (this_board->cardtype == TYPE_PCI1760)
 		pci1760_attach(dev);
diff --git a/drivers/staging/comedi/drivers/aio_iiro_16.c b/drivers/staging/comedi/drivers/aio_iiro_16.c
index 1c7b325..35b2f98 100644
--- a/drivers/staging/comedi/drivers/aio_iiro_16.c
+++ b/drivers/staging/comedi/drivers/aio_iiro_16.c
@@ -42,8 +42,6 @@
 
 #include "../comedidev.h"
 
-#include "comedi_fc.h"
-
 #define AIO_IIRO_16_RELAY_0_7		0x00
 #define AIO_IIRO_16_INPUT_0_7		0x01
 #define AIO_IIRO_16_IRQ			0x02
@@ -116,11 +114,11 @@ static int aio_iiro_16_cos_cmdtest(struct comedi_device *dev,
 
 	/* Step 1 : check if triggers are trivially valid */
 
-	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW);
-	err |= cfc_check_trigger_src(&cmd->scan_begin_src, TRIG_EXT);
-	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_FOLLOW);
-	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_NONE);
+	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW);
+	err |= comedi_check_trigger_src(&cmd->scan_begin_src, TRIG_EXT);
+	err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_FOLLOW);
+	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_NONE);
 
 	if (err)
 		return 1;
@@ -130,11 +128,12 @@ static int aio_iiro_16_cos_cmdtest(struct comedi_device *dev,
 
 	/* Step 3: check if arguments are trivially valid */
 
-	err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0);
-	err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
-	err |= cfc_check_trigger_arg_is(&cmd->convert_arg, 0);
-	err |= cfc_check_trigger_arg_is(&cmd->scan_end_arg, cmd->chanlist_len);
-	err |= cfc_check_trigger_arg_is(&cmd->stop_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->convert_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
+					   cmd->chanlist_len);
+	err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
 
 	if (err)
 		return 3;
diff --git a/drivers/staging/comedi/drivers/amplc_dio200_common.c b/drivers/staging/comedi/drivers/amplc_dio200_common.c
index 26aad70..d15a3dc 100644
--- a/drivers/staging/comedi/drivers/amplc_dio200_common.c
+++ b/drivers/staging/comedi/drivers/amplc_dio200_common.c
@@ -25,19 +25,14 @@
 #include "../comedidev.h"
 
 #include "amplc_dio200.h"
-#include "comedi_fc.h"
-#include "8253.h"
+#include "comedi_8254.h"
 #include "8255.h"		/* only for register defines */
 
 /* 200 series registers */
 #define DIO200_IO_SIZE		0x20
 #define DIO200_PCIE_IO_SIZE	0x4000
-#define DIO200_XCLK_SCE		0x18	/* Group X clock selection register */
-#define DIO200_YCLK_SCE		0x19	/* Group Y clock selection register */
-#define DIO200_ZCLK_SCE		0x1a	/* Group Z clock selection register */
-#define DIO200_XGAT_SCE		0x1b	/* Group X gate selection register */
-#define DIO200_YGAT_SCE		0x1c	/* Group Y gate selection register */
-#define DIO200_ZGAT_SCE		0x1d	/* Group Z gate selection register */
+#define DIO200_CLK_SCE(x)	(0x18 + (x))	/* Group X/Y/Z clock sel reg */
+#define DIO200_GAT_SCE(x)	(0x1b + (x))	/* Group X/Y/Z gate sel reg */
 #define DIO200_INT_SCE		0x1e	/* Interrupt enable/status register */
 /* Extra registers for new PCIe boards */
 #define DIO200_ENHANCE		0x20	/* 1 to enable enhanced features */
@@ -101,16 +96,6 @@ static const unsigned int ts_clock_period[TS_CONFIG_MAX_CLK_SRC + 1] = {
 	1000000,		/* 1 millisecond. */
 };
 
-struct dio200_subdev_8254 {
-	unsigned int ofs;		/* Counter base offset */
-	unsigned int clk_sce_ofs;	/* CLK_SCE base address */
-	unsigned int gat_sce_ofs;	/* GAT_SCE base address */
-	int which;			/* Bit 5 of CLK_SCE or GAT_SCE */
-	unsigned int clock_src[3];	/* Current clock sources */
-	unsigned int gate_src[3];	/* Current gate sources */
-	spinlock_t spinlock;
-};
-
 struct dio200_subdev_8255 {
 	unsigned int ofs;		/* DIO base offset */
 };
@@ -177,6 +162,27 @@ static void dio200_write32(struct comedi_device *dev,
 		outl(val, dev->iobase + offset);
 }
 
+static unsigned int dio200_subdev_8254_offset(struct comedi_device *dev,
+					      struct comedi_subdevice *s)
+{
+	const struct dio200_board *board = dev->board_ptr;
+	struct comedi_8254 *i8254 = s->private;
+	unsigned int offset;
+
+	/* get the offset that was passed to comedi_8254_*_init() */
+	if (dev->mmio)
+		offset = i8254->mmio - dev->mmio;
+	else
+		offset = i8254->iobase - dev->iobase;
+
+	/* remove the shift that was added for PCIe boards */
+	if (board->is_pcie)
+		offset >>= 3;
+
+	/* this offset now works for the dio200_{read,write} helpers */
+	return offset;
+}
+
 static int dio200_subdev_intr_insn_bits(struct comedi_device *dev,
 					struct comedi_subdevice *s,
 					struct comedi_insn *insn,
@@ -366,19 +372,19 @@ static int dio200_subdev_intr_cmdtest(struct comedi_device *dev,
 
 	/* Step 1 : check if triggers are trivially valid */
 
-	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_INT);
-	err |= cfc_check_trigger_src(&cmd->scan_begin_src, TRIG_EXT);
-	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_NOW);
-	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
+	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_INT);
+	err |= comedi_check_trigger_src(&cmd->scan_begin_src, TRIG_EXT);
+	err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_NOW);
+	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
 	/* Step 2a : make sure trigger sources are unique */
 
-	err |= cfc_check_trigger_is_unique(cmd->start_src);
-	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+	err |= comedi_check_trigger_is_unique(cmd->start_src);
+	err |= comedi_check_trigger_is_unique(cmd->stop_src);
 
 	/* Step 2b : and mutually compatible */
 
@@ -387,15 +393,16 @@ static int dio200_subdev_intr_cmdtest(struct comedi_device *dev,
 
 	/* Step 3: check if arguments are trivially valid */
 
-	err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0);
-	err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
-	err |= cfc_check_trigger_arg_is(&cmd->convert_arg, 0);
-	err |= cfc_check_trigger_arg_is(&cmd->scan_end_arg, cmd->chanlist_len);
+	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->convert_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
+					   cmd->chanlist_len);
 
 	if (cmd->stop_src == TRIG_COUNT)
-		err |= cfc_check_trigger_arg_min(&cmd->stop_arg, 1);
+		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
 	else	/* TRIG_NONE */
-		err |= cfc_check_trigger_arg_is(&cmd->stop_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
 
 	if (err)
 		return 3;
@@ -482,175 +489,26 @@ static irqreturn_t dio200_interrupt(int irq, void *d)
 	return IRQ_RETVAL(handled);
 }
 
-static unsigned int dio200_subdev_8254_read_chan(struct comedi_device *dev,
-						 struct comedi_subdevice *s,
-						 unsigned int chan)
-{
-	struct dio200_subdev_8254 *subpriv = s->private;
-	unsigned int val;
-
-	/* latch counter */
-	val = chan << 6;
-	dio200_write8(dev, subpriv->ofs + i8254_control_reg, val);
-	/* read lsb, msb */
-	val = dio200_read8(dev, subpriv->ofs + chan);
-	val += dio200_read8(dev, subpriv->ofs + chan) << 8;
-	return val;
-}
-
-static void dio200_subdev_8254_write_chan(struct comedi_device *dev,
-					  struct comedi_subdevice *s,
-					  unsigned int chan,
-					  unsigned int count)
-{
-	struct dio200_subdev_8254 *subpriv = s->private;
-
-	/* write lsb, msb */
-	dio200_write8(dev, subpriv->ofs + chan, count & 0xff);
-	dio200_write8(dev, subpriv->ofs + chan, (count >> 8) & 0xff);
-}
-
-static void dio200_subdev_8254_set_mode(struct comedi_device *dev,
-					struct comedi_subdevice *s,
-					unsigned int chan,
-					unsigned int mode)
-{
-	struct dio200_subdev_8254 *subpriv = s->private;
-	unsigned int byte;
-
-	byte = chan << 6;
-	byte |= 0x30;		/* access order: lsb, msb */
-	byte |= (mode & 0xf);	/* counter mode and BCD|binary */
-	dio200_write8(dev, subpriv->ofs + i8254_control_reg, byte);
-}
-
-static unsigned int dio200_subdev_8254_status(struct comedi_device *dev,
-					      struct comedi_subdevice *s,
-					      unsigned int chan)
-{
-	struct dio200_subdev_8254 *subpriv = s->private;
-
-	/* latch status */
-	dio200_write8(dev, subpriv->ofs + i8254_control_reg,
-		      0xe0 | (2 << chan));
-	/* read status */
-	return dio200_read8(dev, subpriv->ofs + chan);
-}
-
-static int dio200_subdev_8254_read(struct comedi_device *dev,
-				   struct comedi_subdevice *s,
-				   struct comedi_insn *insn,
-				   unsigned int *data)
-{
-	struct dio200_subdev_8254 *subpriv = s->private;
-	int chan = CR_CHAN(insn->chanspec);
-	unsigned int n;
-	unsigned long flags;
-
-	for (n = 0; n < insn->n; n++) {
-		spin_lock_irqsave(&subpriv->spinlock, flags);
-		data[n] = dio200_subdev_8254_read_chan(dev, s, chan);
-		spin_unlock_irqrestore(&subpriv->spinlock, flags);
-	}
-	return insn->n;
-}
-
-static int dio200_subdev_8254_write(struct comedi_device *dev,
-				    struct comedi_subdevice *s,
-				    struct comedi_insn *insn,
-				    unsigned int *data)
-{
-	struct dio200_subdev_8254 *subpriv = s->private;
-	int chan = CR_CHAN(insn->chanspec);
-	unsigned int n;
-	unsigned long flags;
-
-	for (n = 0; n < insn->n; n++) {
-		spin_lock_irqsave(&subpriv->spinlock, flags);
-		dio200_subdev_8254_write_chan(dev, s, chan, data[n]);
-		spin_unlock_irqrestore(&subpriv->spinlock, flags);
-	}
-	return insn->n;
-}
-
-static int dio200_subdev_8254_set_gate_src(struct comedi_device *dev,
-					   struct comedi_subdevice *s,
-					   unsigned int counter_number,
-					   unsigned int gate_src)
-{
-	const struct dio200_board *board = dev->board_ptr;
-	struct dio200_subdev_8254 *subpriv = s->private;
-	unsigned char byte;
-
-	if (!board->has_clk_gat_sce)
-		return -1;
-	if (counter_number > 2)
-		return -1;
-	if (gate_src > (board->is_pcie ? 31 : 7))
-		return -1;
-
-	subpriv->gate_src[counter_number] = gate_src;
-	byte = gat_sce(subpriv->which, counter_number, gate_src);
-	dio200_write8(dev, subpriv->gat_sce_ofs, byte);
-
-	return 0;
-}
-
-static int dio200_subdev_8254_get_gate_src(struct comedi_device *dev,
-					   struct comedi_subdevice *s,
-					   unsigned int counter_number)
-{
-	const struct dio200_board *board = dev->board_ptr;
-	struct dio200_subdev_8254 *subpriv = s->private;
-
-	if (!board->has_clk_gat_sce)
-		return -1;
-	if (counter_number > 2)
-		return -1;
-
-	return subpriv->gate_src[counter_number];
-}
-
-static int dio200_subdev_8254_set_clock_src(struct comedi_device *dev,
+static void dio200_subdev_8254_set_gate_src(struct comedi_device *dev,
 					    struct comedi_subdevice *s,
-					    unsigned int counter_number,
-					    unsigned int clock_src)
+					    unsigned int chan,
+					    unsigned int src)
 {
-	const struct dio200_board *board = dev->board_ptr;
-	struct dio200_subdev_8254 *subpriv = s->private;
-	unsigned char byte;
-
-	if (!board->has_clk_gat_sce)
-		return -1;
-	if (counter_number > 2)
-		return -1;
-	if (clock_src > (board->is_pcie ? 31 : 7))
-		return -1;
-
-	subpriv->clock_src[counter_number] = clock_src;
-	byte = clk_sce(subpriv->which, counter_number, clock_src);
-	dio200_write8(dev, subpriv->clk_sce_ofs, byte);
+	unsigned int offset = dio200_subdev_8254_offset(dev, s);
 
-	return 0;
+	dio200_write8(dev, DIO200_GAT_SCE(offset >> 3),
+		      gat_sce((offset >> 2) & 1, chan, src));
 }
 
-static int dio200_subdev_8254_get_clock_src(struct comedi_device *dev,
-					    struct comedi_subdevice *s,
-					    unsigned int counter_number,
-					    unsigned int *period_ns)
+static void dio200_subdev_8254_set_clock_src(struct comedi_device *dev,
+					     struct comedi_subdevice *s,
+					     unsigned int chan,
+					     unsigned int src)
 {
-	const struct dio200_board *board = dev->board_ptr;
-	struct dio200_subdev_8254 *subpriv = s->private;
-	unsigned clock_src;
-
-	if (!board->has_clk_gat_sce)
-		return -1;
-	if (counter_number > 2)
-		return -1;
+	unsigned int offset = dio200_subdev_8254_offset(dev, s);
 
-	clock_src = subpriv->clock_src[counter_number];
-	*period_ns = clock_period[clock_src];
-	return clock_src;
+	dio200_write8(dev, DIO200_CLK_SCE(offset >> 3),
+		      clk_sce((offset >> 2) & 1, chan, src));
 }
 
 static int dio200_subdev_8254_config(struct comedi_device *dev,
@@ -658,54 +516,44 @@ static int dio200_subdev_8254_config(struct comedi_device *dev,
 				     struct comedi_insn *insn,
 				     unsigned int *data)
 {
-	struct dio200_subdev_8254 *subpriv = s->private;
-	int ret = 0;
-	int chan = CR_CHAN(insn->chanspec);
-	unsigned long flags;
+	const struct dio200_board *board = dev->board_ptr;
+	struct comedi_8254 *i8254 = s->private;
+	unsigned int chan = CR_CHAN(insn->chanspec);
+	unsigned int max_src = board->is_pcie ? 31 : 7;
+	unsigned int src;
+
+	if (!board->has_clk_gat_sce)
+		return -EINVAL;
 
-	spin_lock_irqsave(&subpriv->spinlock, flags);
 	switch (data[0]) {
-	case INSN_CONFIG_SET_COUNTER_MODE:
-		if (data[1] > (I8254_MODE5 | I8254_BCD))
-			ret = -EINVAL;
-		else
-			dio200_subdev_8254_set_mode(dev, s, chan, data[1]);
-		break;
-	case INSN_CONFIG_8254_READ_STATUS:
-		data[1] = dio200_subdev_8254_status(dev, s, chan);
-		break;
 	case INSN_CONFIG_SET_GATE_SRC:
-		ret = dio200_subdev_8254_set_gate_src(dev, s, chan, data[2]);
-		if (ret < 0)
-			ret = -EINVAL;
+		src = data[2];
+		if (src > max_src)
+			return -EINVAL;
+
+		dio200_subdev_8254_set_gate_src(dev, s, chan, src);
+		i8254->gate_src[chan] = src;
 		break;
 	case INSN_CONFIG_GET_GATE_SRC:
-		ret = dio200_subdev_8254_get_gate_src(dev, s, chan);
-		if (ret < 0) {
-			ret = -EINVAL;
-			break;
-		}
-		data[2] = ret;
+		data[2] = i8254->gate_src[chan];
 		break;
 	case INSN_CONFIG_SET_CLOCK_SRC:
-		ret = dio200_subdev_8254_set_clock_src(dev, s, chan, data[1]);
-		if (ret < 0)
-			ret = -EINVAL;
+		src = data[1];
+		if (src > max_src)
+			return -EINVAL;
+
+		dio200_subdev_8254_set_clock_src(dev, s, chan, src);
+		i8254->clock_src[chan] = src;
 		break;
 	case INSN_CONFIG_GET_CLOCK_SRC:
-		ret = dio200_subdev_8254_get_clock_src(dev, s, chan, &data[2]);
-		if (ret < 0) {
-			ret = -EINVAL;
-			break;
-		}
-		data[1] = ret;
+		data[1] = i8254->clock_src[chan];
+		data[2] = clock_period[i8254->clock_src[chan]];
 		break;
 	default:
-		ret = -EINVAL;
-		break;
+		return -EINVAL;
 	}
-	spin_unlock_irqrestore(&subpriv->spinlock, flags);
-	return ret < 0 ? ret : insn->n;
+
+	return insn->n;
 }
 
 static int dio200_subdev_8254_init(struct comedi_device *dev,
@@ -713,36 +561,46 @@ static int dio200_subdev_8254_init(struct comedi_device *dev,
 				   unsigned int offset)
 {
 	const struct dio200_board *board = dev->board_ptr;
-	struct dio200_subdev_8254 *subpriv;
-	unsigned int chan;
+	struct comedi_8254 *i8254;
+	unsigned int regshift;
+	int chan;
+
+	/*
+	 * PCIe boards need the offset shifted in order to get the
+	 * correct base address of the timer.
+	 */
+	if (board->is_pcie) {
+		offset <<= 3;
+		regshift = 3;
+	} else {
+		regshift = 0;
+	}
 
-	subpriv = comedi_alloc_spriv(s, sizeof(*subpriv));
-	if (!subpriv)
+	if (dev->mmio)
+		i8254 = comedi_8254_mm_init(dev->mmio + offset,
+					    0, I8254_IO8, regshift);
+	else
+		i8254 = comedi_8254_init(dev->iobase + offset,
+					 0, I8254_IO8, regshift);
+	if (!i8254)
 		return -ENOMEM;
 
-	s->type = COMEDI_SUBD_COUNTER;
-	s->subdev_flags = SDF_WRITABLE | SDF_READABLE;
-	s->n_chan = 3;
-	s->maxdata = 0xFFFF;
-	s->insn_read = dio200_subdev_8254_read;
-	s->insn_write = dio200_subdev_8254_write;
-	s->insn_config = dio200_subdev_8254_config;
+	comedi_8254_subdevice_init(s, i8254);
 
-	spin_lock_init(&subpriv->spinlock);
-	subpriv->ofs = offset;
-	if (board->has_clk_gat_sce) {
-		/* Derive CLK_SCE and GAT_SCE register offsets from
-		 * 8254 offset. */
-		subpriv->clk_sce_ofs = DIO200_XCLK_SCE + (offset >> 3);
-		subpriv->gat_sce_ofs = DIO200_XGAT_SCE + (offset >> 3);
-		subpriv->which = (offset >> 2) & 1;
-	}
+	i8254->insn_config = dio200_subdev_8254_config;
+
+	/*
+	 * There could be multiple timers so this driver does not
+	 * use dev->pacer to save the i8254 pointer. Instead,
+	 * comedi_8254_subdevice_init() saved the i8254 pointer in
+	 * s->private. Set the runflag bit so that the core will
+	 * automatically free it when the driver is detached.
+	 */
+	s->runflags |= COMEDI_SRF_FREE_SPRIV;
 
 	/* Initialize channels. */
-	for (chan = 0; chan < 3; chan++) {
-		dio200_subdev_8254_set_mode(dev, s, chan,
-					    I8254_MODE0 | I8254_BINARY);
-		if (board->has_clk_gat_sce) {
+	if (board->has_clk_gat_sce) {
+		for (chan = 0; chan < 3; chan++) {
 			/* Gate source 0 is VCC (logic 1). */
 			dio200_subdev_8254_set_gate_src(dev, s, chan, 0);
 			/* Clock source 0 is the dedicated clock input. */
diff --git a/drivers/staging/comedi/drivers/amplc_dio200_pci.c b/drivers/staging/comedi/drivers/amplc_dio200_pci.c
index b83d1f5..d9850c9 100644
--- a/drivers/staging/comedi/drivers/amplc_dio200_pci.c
+++ b/drivers/staging/comedi/drivers/amplc_dio200_pci.c
@@ -221,10 +221,9 @@
  */
 
 #include <linux/module.h>
-#include <linux/pci.h>
 #include <linux/interrupt.h>
 
-#include "../comedidev.h"
+#include "../comedi_pci.h"
 
 #include "amplc_dio200.h"
 
diff --git a/drivers/staging/comedi/drivers/amplc_pc236_common.c b/drivers/staging/comedi/drivers/amplc_pc236_common.c
index be87172..245f932 100644
--- a/drivers/staging/comedi/drivers/amplc_pc236_common.c
+++ b/drivers/staging/comedi/drivers/amplc_pc236_common.c
@@ -24,7 +24,6 @@
 #include "../comedidev.h"
 
 #include "amplc_pc236.h"
-#include "comedi_fc.h"
 #include "8255.h"
 
 static void pc236_intr_update(struct comedi_device *dev, bool enable)
@@ -82,11 +81,11 @@ static int pc236_intr_cmdtest(struct comedi_device *dev,
 
 	/* Step 1 : check if triggers are trivially valid */
 
-	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW);
-	err |= cfc_check_trigger_src(&cmd->scan_begin_src, TRIG_EXT);
-	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_FOLLOW);
-	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_NONE);
+	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW);
+	err |= comedi_check_trigger_src(&cmd->scan_begin_src, TRIG_EXT);
+	err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_FOLLOW);
+	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_NONE);
 
 	if (err)
 		return 1;
@@ -96,11 +95,12 @@ static int pc236_intr_cmdtest(struct comedi_device *dev,
 
 	/* Step 3: check it arguments are trivially valid */
 
-	err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0);
-	err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
-	err |= cfc_check_trigger_arg_is(&cmd->convert_arg, 0);
-	err |= cfc_check_trigger_arg_is(&cmd->scan_end_arg, cmd->chanlist_len);
-	err |= cfc_check_trigger_arg_is(&cmd->stop_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->convert_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
+					   cmd->chanlist_len);
+	err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
 
 	if (err)
 		return 3;
@@ -195,7 +195,6 @@ static void __exit amplc_pc236_common_exit(void)
 }
 module_exit(amplc_pc236_common_exit);
 
-
 MODULE_AUTHOR("Comedi http://www.comedi.org");
 MODULE_DESCRIPTION("Comedi helper for amplc_pc236 and amplc_pci236");
 MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/amplc_pci224.c b/drivers/staging/comedi/drivers/amplc_pci224.c
index 924c829..08a9185 100644
--- a/drivers/staging/comedi/drivers/amplc_pci224.c
+++ b/drivers/staging/comedi/drivers/amplc_pci224.c
@@ -103,22 +103,17 @@
  */
 
 #include <linux/module.h>
-#include <linux/pci.h>
 #include <linux/interrupt.h>
 #include <linux/slab.h>
 
-#include "../comedidev.h"
+#include "../comedi_pci.h"
 
-#include "comedi_fc.h"
-#include "8253.h"
+#include "comedi_8254.h"
 
 /*
  * PCI224/234 i/o space 1 (PCIBAR2) registers.
  */
-#define PCI224_Z2_CT0	0x14	/* 82C54 counter/timer 0 */
-#define PCI224_Z2_CT1	0x15	/* 82C54 counter/timer 1 */
-#define PCI224_Z2_CT2	0x16	/* 82C54 counter/timer 2 */
-#define PCI224_Z2_CTC	0x17	/* 82C54 counter/timer control word */
+#define PCI224_Z2_BASE	0x14	/* 82C54 counter/timer */
 #define PCI224_ZCLK_SCE	0x1A	/* Group Z Clock Configuration Register */
 #define PCI224_ZGAT_SCE	0x1D	/* Group Z Gate Configuration Register */
 #define PCI224_INT_SCE	0x1E	/* ISR Interrupt source mask register */
@@ -379,8 +374,6 @@ struct pci224_private {
 	int intr_cpuid;
 	short intr_running;
 	unsigned short daccon;
-	unsigned int cached_div1;
-	unsigned int cached_div2;
 	unsigned short ao_enab;	/* max 16 channels so 'short' will do */
 	unsigned char intsce;
 };
@@ -451,7 +444,6 @@ static void pci224_ao_stop(struct comedi_device *dev,
 	if (!test_and_clear_bit(AO_CMD_STARTED, &devpriv->state))
 		return;
 
-
 	spin_lock_irqsave(&devpriv->ao_spinlock, flags);
 	/* Kill the interrupts. */
 	devpriv->intsce = 0;
@@ -668,28 +660,27 @@ static int
 pci224_ao_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s,
 		  struct comedi_cmd *cmd)
 {
-	struct pci224_private *devpriv = dev->private;
 	int err = 0;
 	unsigned int arg;
 
 	/* Step 1 : check if triggers are trivially valid */
 
-	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_INT | TRIG_EXT);
-	err |= cfc_check_trigger_src(&cmd->scan_begin_src,
-				     TRIG_EXT | TRIG_TIMER);
-	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_NOW);
-	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= cfc_check_trigger_src(&cmd->stop_src,
-				     TRIG_COUNT | TRIG_EXT | TRIG_NONE);
+	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_INT | TRIG_EXT);
+	err |= comedi_check_trigger_src(&cmd->scan_begin_src,
+					TRIG_EXT | TRIG_TIMER);
+	err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_NOW);
+	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= comedi_check_trigger_src(&cmd->stop_src,
+					TRIG_COUNT | TRIG_EXT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
 	/* Step 2a : make sure trigger sources are unique */
 
-	err |= cfc_check_trigger_is_unique(cmd->start_src);
-	err |= cfc_check_trigger_is_unique(cmd->scan_begin_src);
-	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+	err |= comedi_check_trigger_is_unique(cmd->start_src);
+	err |= comedi_check_trigger_is_unique(cmd->scan_begin_src);
+	err |= comedi_check_trigger_is_unique(cmd->stop_src);
 
 	/* Step 2b : and mutually compatible */
 
@@ -714,7 +705,7 @@ pci224_ao_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s,
 
 	switch (cmd->start_src) {
 	case TRIG_INT:
-		err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
 		break;
 	case TRIG_EXT:
 		/* Force to external trigger 0. */
@@ -734,13 +725,13 @@ pci224_ao_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s,
 
 	switch (cmd->scan_begin_src) {
 	case TRIG_TIMER:
-		err |= cfc_check_trigger_arg_max(&cmd->scan_begin_arg,
-						 MAX_SCAN_PERIOD);
+		err |= comedi_check_trigger_arg_max(&cmd->scan_begin_arg,
+						    MAX_SCAN_PERIOD);
 
 		arg = cmd->chanlist_len * CONVERT_PERIOD;
 		if (arg < MIN_SCAN_PERIOD)
 			arg = MIN_SCAN_PERIOD;
-		err |= cfc_check_trigger_arg_min(&cmd->scan_begin_arg, arg);
+		err |= comedi_check_trigger_arg_min(&cmd->scan_begin_arg, arg);
 		break;
 	case TRIG_EXT:
 		/* Force to external trigger 0. */
@@ -760,12 +751,13 @@ pci224_ao_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s,
 		break;
 	}
 
-	err |= cfc_check_trigger_arg_is(&cmd->convert_arg, 0);
-	err |= cfc_check_trigger_arg_is(&cmd->scan_end_arg, cmd->chanlist_len);
+	err |= comedi_check_trigger_arg_is(&cmd->convert_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
+					   cmd->chanlist_len);
 
 	switch (cmd->stop_src) {
 	case TRIG_COUNT:
-		err |= cfc_check_trigger_arg_min(&cmd->stop_arg, 1);
+		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
 		break;
 	case TRIG_EXT:
 		/* Force to external trigger 0. */
@@ -781,7 +773,7 @@ pci224_ao_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s,
 		}
 		break;
 	case TRIG_NONE:
-		err |= cfc_check_trigger_arg_is(&cmd->stop_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
 		break;
 	}
 
@@ -793,11 +785,8 @@ pci224_ao_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s,
 	if (cmd->scan_begin_src == TRIG_TIMER) {
 		arg = cmd->scan_begin_arg;
 		/* Use two timers. */
-		i8253_cascade_ns_to_timer(I8254_OSC_BASE_10MHZ,
-					  &devpriv->cached_div1,
-					  &devpriv->cached_div2,
-					  &arg, cmd->flags);
-		err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, arg);
+		comedi_8254_cascade_ns_to_timer(dev->pacer, &arg, cmd->flags);
+		err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, arg);
 	}
 
 	if (err)
@@ -817,7 +806,6 @@ static void pci224_ao_start_pacer(struct comedi_device *dev,
 				  struct comedi_subdevice *s)
 {
 	struct pci224_private *devpriv = dev->private;
-	unsigned long timer_base = devpriv->iobase1 + PCI224_Z2_CT0;
 
 	/*
 	 * The output of timer Z2-0 will be used as the scan trigger
@@ -830,14 +818,10 @@ static void pci224_ao_start_pacer(struct comedi_device *dev,
 	outb(GAT_CONFIG(2, GAT_VCC), devpriv->iobase1 + PCI224_ZGAT_SCE);
 	/* Z2-2 needs 10 MHz clock. */
 	outb(CLK_CONFIG(2, CLK_10MHZ), devpriv->iobase1 + PCI224_ZCLK_SCE);
-	/* Load Z2-2 mode (2) and counter (div1). */
-	i8254_set_mode(timer_base, 0, 2, I8254_MODE2 | I8254_BINARY);
-	i8254_write(timer_base, 0, 2, devpriv->cached_div1);
 	/* Z2-0 is clocked from Z2-2's output. */
 	outb(CLK_CONFIG(0, CLK_OUTNM1), devpriv->iobase1 + PCI224_ZCLK_SCE);
-	/* Load Z2-0 mode (2) and counter (div2). */
-	i8254_set_mode(timer_base, 0, 0, I8254_MODE2 | I8254_BINARY);
-	i8254_write(timer_base, 0, 0, devpriv->cached_div2);
+
+	comedi_8254_pacer_enable(dev->pacer, 2, 0, false);
 }
 
 static int pci224_ao_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
@@ -852,10 +836,9 @@ static int pci224_ao_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 	unsigned long flags;
 
 	/* Cannot handle null/empty chanlist. */
-	if (cmd->chanlist == NULL || cmd->chanlist_len == 0)
+	if (!cmd->chanlist || cmd->chanlist_len == 0)
 		return -EINVAL;
 
-
 	/* Determine which channels are enabled and their load order.  */
 	devpriv->ao_enab = 0;
 
@@ -893,8 +876,10 @@ static int pci224_ao_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 	outw(devpriv->daccon | PCI224_DACCON_FIFORESET,
 	     dev->iobase + PCI224_DACCON);
 
-	if (cmd->scan_begin_src == TRIG_TIMER)
+	if (cmd->scan_begin_src == TRIG_TIMER) {
+		comedi_8254_update_divisors(dev->pacer);
 		pci224_ao_start_pacer(dev, s);
+	}
 
 	spin_lock_irqsave(&devpriv->ao_spinlock, flags);
 	if (cmd->start_src == TRIG_INT) {
@@ -1042,14 +1027,12 @@ pci224_auto_attach(struct comedi_device *dev, unsigned long context_model)
 	if (!devpriv->ao_scan_vals)
 		return -ENOMEM;
 
-
 	/* Allocate buffer to hold AO channel scan order. */
 	devpriv->ao_scan_order = kmalloc(sizeof(devpriv->ao_scan_order[0]) *
 					 thisboard->ao_chans, GFP_KERNEL);
 	if (!devpriv->ao_scan_order)
 		return -ENOMEM;
 
-
 	/* Disable interrupt sources. */
 	devpriv->intsce = 0;
 	outb(0, devpriv->iobase1 + PCI224_INT_SCE);
@@ -1063,6 +1046,11 @@ pci224_auto_attach(struct comedi_device *dev, unsigned long context_model)
 	outw(devpriv->daccon | PCI224_DACCON_FIFORESET,
 	     dev->iobase + PCI224_DACCON);
 
+	dev->pacer = comedi_8254_init(devpriv->iobase1 + PCI224_Z2_BASE,
+				      I8254_OSC_BASE_10MHZ, I8254_IO8, 0);
+	if (!dev->pacer)
+		return -ENOMEM;
+
 	ret = comedi_alloc_subdevices(dev, 1);
 	if (ret)
 		return ret;
diff --git a/drivers/staging/comedi/drivers/amplc_pci230.c b/drivers/staging/comedi/drivers/amplc_pci230.c
index 49806a5..20d5920 100644
--- a/drivers/staging/comedi/drivers/amplc_pci230.c
+++ b/drivers/staging/comedi/drivers/amplc_pci230.c
@@ -181,14 +181,12 @@
  */
 
 #include <linux/module.h>
-#include <linux/pci.h>
 #include <linux/delay.h>
 #include <linux/interrupt.h>
 
-#include "../comedidev.h"
+#include "../comedi_pci.h"
 
-#include "comedi_fc.h"
-#include "8253.h"
+#include "comedi_8254.h"
 #include "8255.h"
 
 /*
@@ -206,10 +204,6 @@
 #define PCI230_PPI_X_C		0x02	/* User PPI (82C55) port C */
 #define PCI230_PPI_X_CMD	0x03	/* User PPI (82C55) control word */
 #define PCI230_Z2_CT_BASE	0x14	/* 82C54 counter/timer base */
-#define PCI230_Z2_CT0		0x14	/* 82C54 counter/timer 0 */
-#define PCI230_Z2_CT1		0x15	/* 82C54 counter/timer 1 */
-#define PCI230_Z2_CT2		0x16	/* 82C54 counter/timer 2 */
-#define PCI230_Z2_CTC		0x17	/* 82C54 counter/timer control word */
 #define PCI230_ZCLK_SCE		0x1A	/* Group Z Clock Configuration */
 #define PCI230_ZGAT_SCE		0x1D	/* Group Z Gate Configuration */
 #define PCI230_INT_SCE		0x1E	/* Interrupt source mask (w) */
@@ -377,12 +371,6 @@
 #define CLK_EXT		7	/* external clock */
 /* Macro to construct clock input configuration register value. */
 #define CLK_CONFIG(chan, src)	((((chan) & 3) << 3) | ((src) & 7))
-/* Timebases in ns. */
-#define TIMEBASE_10MHZ		100
-#define TIMEBASE_1MHZ		1000
-#define TIMEBASE_100KHZ		10000
-#define TIMEBASE_10KHZ		100000
-#define TIMEBASE_1KHZ		1000000
 
 /*
  * Counter/timer gate input configuration sources.
@@ -507,11 +495,11 @@ struct pci230_private {
 
 /* PCI230 clock source periods in ns */
 static const unsigned int pci230_timebase[8] = {
-	[CLK_10MHZ] = TIMEBASE_10MHZ,
-	[CLK_1MHZ] = TIMEBASE_1MHZ,
-	[CLK_100KHZ] = TIMEBASE_100KHZ,
-	[CLK_10KHZ] = TIMEBASE_10KHZ,
-	[CLK_1KHZ] = TIMEBASE_1KHZ,
+	[CLK_10MHZ]	= I8254_OSC_BASE_10MHZ,
+	[CLK_1MHZ]	= I8254_OSC_BASE_1MHZ,
+	[CLK_100KHZ]	= I8254_OSC_BASE_100KHZ,
+	[CLK_10KHZ]	= I8254_OSC_BASE_10KHZ,
+	[CLK_1KHZ]	= I8254_OSC_BASE_1KHZ,
 };
 
 /* PCI230 analogue input range table */
@@ -695,7 +683,7 @@ static void pci230_ct_setup_ns_mode(struct comedi_device *dev, unsigned int ct,
 	unsigned int count;
 
 	/* Set mode. */
-	i8254_set_mode(dev->iobase + PCI230_Z2_CT_BASE, 0, ct, mode);
+	comedi_8254_set_mode(dev->pacer, ct, mode);
 	/* Determine clock source and count. */
 	clk_src = pci230_choose_clk_count(ns, &count, flags);
 	/* Program clock source. */
@@ -704,13 +692,13 @@ static void pci230_ct_setup_ns_mode(struct comedi_device *dev, unsigned int ct,
 	if (count >= 65536)
 		count = 0;
 
-	i8254_write(dev->iobase + PCI230_Z2_CT_BASE, 0, ct, count);
+	comedi_8254_write(dev->pacer, ct, count);
 }
 
 static void pci230_cancel_ct(struct comedi_device *dev, unsigned int ct)
 {
-	i8254_set_mode(dev->iobase + PCI230_Z2_CT_BASE, 0, ct, I8254_MODE1);
 	/* Counter ct, 8254 mode 1, initial count not written. */
+	comedi_8254_set_mode(dev->pacer, ct, I8254_MODE1);
 }
 
 static int pci230_ai_eoc(struct comedi_device *dev,
@@ -760,7 +748,7 @@ static int pci230_ai_insn_read(struct comedi_device *dev,
 	 */
 	adccon = PCI230_ADC_TRIG_Z2CT2 | PCI230_ADC_FIFO_EN;
 	/* Set Z2-CT2 output low to avoid any false triggers. */
-	i8254_set_mode(dev->iobase + PCI230_Z2_CT_BASE, 0, 2, I8254_MODE0);
+	comedi_8254_set_mode(dev->pacer, 2, I8254_MODE0);
 	devpriv->ai_bipolar = comedi_range_is_bipolar(s, range);
 	if (aref == AREF_DIFF) {
 		/* Differential. */
@@ -811,10 +799,8 @@ static int pci230_ai_insn_read(struct comedi_device *dev,
 		 * Trigger conversion by toggling Z2-CT2 output
 		 * (finish with output high).
 		 */
-		i8254_set_mode(dev->iobase + PCI230_Z2_CT_BASE, 0,
-			       2, I8254_MODE0);
-		i8254_set_mode(dev->iobase + PCI230_Z2_CT_BASE, 0,
-			       2, I8254_MODE1);
+		comedi_8254_set_mode(dev->pacer, 2, I8254_MODE0);
+		comedi_8254_set_mode(dev->pacer, 2, I8254_MODE1);
 
 		/* wait for conversion to end */
 		ret = comedi_timeout(dev, s, insn, pci230_ai_eoc, 0);
@@ -898,7 +884,7 @@ static int pci230_ao_cmdtest(struct comedi_device *dev,
 
 	/* Step 1 : check if triggers are trivially valid */
 
-	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_INT);
+	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_INT);
 
 	tmp = TRIG_TIMER | TRIG_INT;
 	if (thisboard->min_hwver > 0 && devpriv->hwver >= 2) {
@@ -918,19 +904,19 @@ static int pci230_ao_cmdtest(struct comedi_device *dev,
 		 */
 		tmp |= TRIG_EXT;
 	}
-	err |= cfc_check_trigger_src(&cmd->scan_begin_src, tmp);
+	err |= comedi_check_trigger_src(&cmd->scan_begin_src, tmp);
 
-	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_NOW);
-	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
+	err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_NOW);
+	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
 	/* Step 2a : make sure trigger sources are unique */
 
-	err |= cfc_check_trigger_is_unique(cmd->scan_begin_src);
-	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+	err |= comedi_check_trigger_is_unique(cmd->scan_begin_src);
+	err |= comedi_check_trigger_is_unique(cmd->stop_src);
 
 	/* Step 2b : and mutually compatible */
 
@@ -939,7 +925,7 @@ static int pci230_ao_cmdtest(struct comedi_device *dev,
 
 	/* Step 3: check if arguments are trivially valid */
 
-	err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
 
 #define MAX_SPEED_AO	8000	/* 8000 ns => 125 kHz */
 /*
@@ -950,10 +936,10 @@ static int pci230_ao_cmdtest(struct comedi_device *dev,
 
 	switch (cmd->scan_begin_src) {
 	case TRIG_TIMER:
-		err |= cfc_check_trigger_arg_min(&cmd->scan_begin_arg,
-						 MAX_SPEED_AO);
-		err |= cfc_check_trigger_arg_max(&cmd->scan_begin_arg,
-						 MIN_SPEED_AO);
+		err |= comedi_check_trigger_arg_min(&cmd->scan_begin_arg,
+						    MAX_SPEED_AO);
+		err |= comedi_check_trigger_arg_max(&cmd->scan_begin_arg,
+						    MIN_SPEED_AO);
 		break;
 	case TRIG_EXT:
 		/*
@@ -978,16 +964,17 @@ static int pci230_ao_cmdtest(struct comedi_device *dev,
 		}
 		break;
 	default:
-		err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
 		break;
 	}
 
-	err |= cfc_check_trigger_arg_is(&cmd->scan_end_arg, cmd->chanlist_len);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
+					   cmd->chanlist_len);
 
 	if (cmd->stop_src == TRIG_COUNT)
-		err |= cfc_check_trigger_arg_min(&cmd->stop_arg, 1);
+		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
 	else	/* TRIG_NONE */
-		err |= cfc_check_trigger_arg_is(&cmd->stop_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
 
 	if (err)
 		return 3;
@@ -1520,7 +1507,7 @@ static int pci230_ai_cmdtest(struct comedi_device *dev,
 
 	/* Step 1 : check if triggers are trivially valid */
 
-	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_INT);
+	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_INT);
 
 	tmp = TRIG_FOLLOW | TRIG_TIMER | TRIG_INT;
 	if (thisboard->have_dio || thisboard->min_hwver > 0) {
@@ -1532,21 +1519,21 @@ static int pci230_ai_cmdtest(struct comedi_device *dev,
 		 */
 		tmp |= TRIG_EXT;
 	}
-	err |= cfc_check_trigger_src(&cmd->scan_begin_src, tmp);
-	err |= cfc_check_trigger_src(&cmd->convert_src,
+	err |= comedi_check_trigger_src(&cmd->scan_begin_src, tmp);
+	err |= comedi_check_trigger_src(&cmd->convert_src,
 					TRIG_TIMER | TRIG_INT | TRIG_EXT);
-	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
+	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
 	/* Step 2a : make sure trigger sources are unique */
 
-	err |= cfc_check_trigger_is_unique(cmd->start_src);
-	err |= cfc_check_trigger_is_unique(cmd->scan_begin_src);
-	err |= cfc_check_trigger_is_unique(cmd->convert_src);
-	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+	err |= comedi_check_trigger_is_unique(cmd->start_src);
+	err |= comedi_check_trigger_is_unique(cmd->scan_begin_src);
+	err |= comedi_check_trigger_is_unique(cmd->convert_src);
+	err |= comedi_check_trigger_is_unique(cmd->stop_src);
 
 	/* Step 2b : and mutually compatible */
 
@@ -1563,7 +1550,7 @@ static int pci230_ai_cmdtest(struct comedi_device *dev,
 
 	/* Step 3: check if arguments are trivially valid */
 
-	err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
 
 #define MAX_SPEED_AI_SE		3200	/* PCI230 SE:   3200 ns => 312.5 kHz */
 #define MAX_SPEED_AI_DIFF	8000	/* PCI230 DIFF: 8000 ns => 125 kHz */
@@ -1598,10 +1585,10 @@ static int pci230_ai_cmdtest(struct comedi_device *dev,
 			max_speed_ai = MAX_SPEED_AI_PLUS;
 		}
 
-		err |= cfc_check_trigger_arg_min(&cmd->convert_arg,
-						 max_speed_ai);
-		err |= cfc_check_trigger_arg_max(&cmd->convert_arg,
-						 MIN_SPEED_AI);
+		err |= comedi_check_trigger_arg_min(&cmd->convert_arg,
+						    max_speed_ai);
+		err |= comedi_check_trigger_arg_max(&cmd->convert_arg,
+						    MIN_SPEED_AI);
 	} else if (cmd->convert_src == TRIG_EXT) {
 		/*
 		 * external trigger
@@ -1636,18 +1623,20 @@ static int pci230_ai_cmdtest(struct comedi_device *dev,
 			 * convert_arg == 0 => trigger on -ve edge.
 			 * convert_arg == 1 => trigger on +ve edge.
 			 */
-			err |= cfc_check_trigger_arg_max(&cmd->convert_arg, 1);
+			err |= comedi_check_trigger_arg_max(&cmd->convert_arg,
+							    1);
 		}
 	} else {
-		err |= cfc_check_trigger_arg_is(&cmd->convert_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->convert_arg, 0);
 	}
 
-	err |= cfc_check_trigger_arg_is(&cmd->scan_end_arg, cmd->chanlist_len);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
+					   cmd->chanlist_len);
 
 	if (cmd->stop_src == TRIG_COUNT)
-		err |= cfc_check_trigger_arg_min(&cmd->stop_arg, 1);
+		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
 	else	/* TRIG_NONE */
-		err |= cfc_check_trigger_arg_is(&cmd->stop_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
 
 	if (cmd->scan_begin_src == TRIG_EXT) {
 		/*
@@ -1672,7 +1661,7 @@ static int pci230_ai_cmdtest(struct comedi_device *dev,
 			err |= -EINVAL;
 
 	} else {
-		err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
 	}
 
 	if (err)
@@ -1767,8 +1756,8 @@ static int pci230_ai_inttrig_convert(struct comedi_device *dev,
 	 * Trigger conversion by toggling Z2-CT2 output.
 	 * Finish with output high.
 	 */
-	i8254_set_mode(dev->iobase + PCI230_Z2_CT_BASE, 0, 2, I8254_MODE0);
-	i8254_set_mode(dev->iobase + PCI230_Z2_CT_BASE, 0, 2, I8254_MODE1);
+	comedi_8254_set_mode(dev->pacer, 2, I8254_MODE0);
+	comedi_8254_set_mode(dev->pacer, 2, I8254_MODE1);
 	/*
 	 * Delay.  Should driver be responsible for this?  An
 	 * alternative would be to wait until conversion is complete,
@@ -2189,7 +2178,7 @@ static int pci230_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 	 * Set counter/timer 2 output high for use as the initial start
 	 * conversion source.
 	 */
-	i8254_set_mode(dev->iobase + PCI230_Z2_CT_BASE, 0, 2, I8254_MODE1);
+	comedi_8254_set_mode(dev->pacer, 2, I8254_MODE1);
 
 	/*
 	 * Temporarily use CT2 output as conversion trigger source and
@@ -2393,7 +2382,7 @@ static int pci230_auto_attach(struct comedi_device *dev,
 	spin_lock_init(&devpriv->ao_stop_spinlock);
 
 	dev->board_ptr = pci230_find_pci_board(pci_dev);
-	if (dev->board_ptr == NULL) {
+	if (!dev->board_ptr) {
 		dev_err(dev->class_dev,
 			"amplc_pci230: BUG! cannot determine board type!\n");
 		return -EINVAL;
@@ -2481,6 +2470,11 @@ static int pci230_auto_attach(struct comedi_device *dev,
 			dev->irq = pci_dev->irq;
 	}
 
+	dev->pacer = comedi_8254_init(dev->iobase + PCI230_Z2_CT_BASE,
+				      0, I8254_IO8, 0);
+	if (!dev->pacer)
+		return -ENOMEM;
+
 	rc = comedi_alloc_subdevices(dev, 3);
 	if (rc)
 		return rc;
diff --git a/drivers/staging/comedi/drivers/amplc_pci236.c b/drivers/staging/comedi/drivers/amplc_pci236.c
index ad1e93d..31cc38b 100644
--- a/drivers/staging/comedi/drivers/amplc_pci236.c
+++ b/drivers/staging/comedi/drivers/amplc_pci236.c
@@ -42,10 +42,9 @@
  */
 
 #include <linux/module.h>
-#include <linux/pci.h>
 #include <linux/interrupt.h>
 
-#include "../comedidev.h"
+#include "../comedi_pci.h"
 
 #include "amplc_pc236.h"
 #include "plx9052.h"
diff --git a/drivers/staging/comedi/drivers/amplc_pci263.c b/drivers/staging/comedi/drivers/amplc_pci263.c
index 0d2224b..b6768aa 100644
--- a/drivers/staging/comedi/drivers/amplc_pci263.c
+++ b/drivers/staging/comedi/drivers/amplc_pci263.c
@@ -33,9 +33,8 @@ The state of the outputs can be read.
 */
 
 #include <linux/module.h>
-#include <linux/pci.h>
 
-#include "../comedidev.h"
+#include "../comedi_pci.h"
 
 static int pci263_do_insn_bits(struct comedi_device *dev,
 			       struct comedi_subdevice *s,
diff --git a/drivers/staging/comedi/drivers/cb_das16_cs.c b/drivers/staging/comedi/drivers/cb_das16_cs.c
index 1079b6c..ae84f2c 100644
--- a/drivers/staging/comedi/drivers/cb_das16_cs.c
+++ b/drivers/staging/comedi/drivers/cb_das16_cs.c
@@ -30,8 +30,6 @@ Devices: [ComputerBoards] PC-CARD DAS16/16 (cb_das16_cs), PC-CARD DAS16/16-AO
 Author: ds
 Updated: Mon, 04 Nov 2002 20:04:21 -0800
 Status: experimental
-
-
 */
 
 #include <linux/module.h>
@@ -40,17 +38,13 @@ Status: experimental
 
 #include "../comedi_pcmcia.h"
 
-#include "comedi_fc.h"
-#include "8253.h"
+#include "comedi_8254.h"
 
 #define DAS16CS_ADC_DATA		0
 #define DAS16CS_DIO_MUX			2
 #define DAS16CS_MISC1			4
 #define DAS16CS_MISC2			6
-#define DAS16CS_CTR0			8
-#define DAS16CS_CTR1			10
-#define DAS16CS_CTR2			12
-#define DAS16CS_CTR_CONTROL		14
+#define DAS16CS_TIMER_BASE		8
 #define DAS16CS_DIO			16
 
 struct das16cs_board {
@@ -279,6 +273,11 @@ static int das16cs_auto_attach(struct comedi_device *dev,
 	if (!devpriv)
 		return -ENOMEM;
 
+	dev->pacer = comedi_8254_init(dev->iobase + DAS16CS_TIMER_BASE,
+				      I8254_OSC_BASE_10MHZ, I8254_IO16, 0);
+	if (!dev->pacer)
+		return -ENOMEM;
+
 	ret = comedi_alloc_subdevices(dev, 3);
 	if (ret)
 		return ret;
diff --git a/drivers/staging/comedi/drivers/cb_pcidas.c b/drivers/staging/comedi/drivers/cb_pcidas.c
index dd0c65a..e3591a5 100644
--- a/drivers/staging/comedi/drivers/cb_pcidas.c
+++ b/drivers/staging/comedi/drivers/cb_pcidas.c
@@ -62,16 +62,14 @@ analog triggering on 1602 series
 */
 
 #include <linux/module.h>
-#include <linux/pci.h>
 #include <linux/delay.h>
 #include <linux/interrupt.h>
 
-#include "../comedidev.h"
+#include "../comedi_pci.h"
 
-#include "8253.h"
+#include "comedi_8254.h"
 #include "8255.h"
 #include "amcc_s5933.h"
-#include "comedi_fc.h"
 
 #define AI_BUFFER_SIZE		1024	/* max ai fifo size */
 #define AO_BUFFER_SIZE		1024	/* max ao fifo size */
@@ -338,14 +336,12 @@ static const struct cb_pcidas_board cb_pcidas_boards[] = {
 };
 
 struct cb_pcidas_private {
+	struct comedi_8254 *ao_pacer;
 	/* base addresses */
 	unsigned long s5933_config;
 	unsigned long control_status;
 	unsigned long adc_fifo;
 	unsigned long ao_registers;
-	/* divisors of master clock for analog input pacing */
-	unsigned int divisor1;
-	unsigned int divisor2;
 	/* bits to write to registers */
 	unsigned int adc_fifo_bits;
 	unsigned int s5933_intcsr_bits;
@@ -353,9 +349,6 @@ struct cb_pcidas_private {
 	/* fifo buffers */
 	unsigned short ai_buffer[AI_BUFFER_SIZE];
 	unsigned short ao_buffer[AO_BUFFER_SIZE];
-	/* divisors of master clock for analog output pacing */
-	unsigned int ao_divisor1;
-	unsigned int ao_divisor2;
 	unsigned int calibration_source;
 };
 
@@ -530,7 +523,7 @@ static int wait_for_nvram_ready(unsigned long s5933_base_addr)
 }
 
 static int nvram_read(struct comedi_device *dev, unsigned int address,
-			uint8_t *data)
+		      uint8_t *data)
 {
 	struct cb_pcidas_private *devpriv = dev->private;
 	unsigned long iobase = devpriv->s5933_config;
@@ -778,29 +771,28 @@ static int cb_pcidas_ai_cmdtest(struct comedi_device *dev,
 				struct comedi_cmd *cmd)
 {
 	const struct cb_pcidas_board *thisboard = dev->board_ptr;
-	struct cb_pcidas_private *devpriv = dev->private;
 	int err = 0;
 	unsigned int arg;
 
 	/* Step 1 : check if triggers are trivially valid */
 
-	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_EXT);
-	err |= cfc_check_trigger_src(&cmd->scan_begin_src,
+	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_EXT);
+	err |= comedi_check_trigger_src(&cmd->scan_begin_src,
 					TRIG_FOLLOW | TRIG_TIMER | TRIG_EXT);
-	err |= cfc_check_trigger_src(&cmd->convert_src,
+	err |= comedi_check_trigger_src(&cmd->convert_src,
 					TRIG_TIMER | TRIG_NOW | TRIG_EXT);
-	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
+	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
 	/* Step 2a : make sure trigger sources are unique */
 
-	err |= cfc_check_trigger_is_unique(cmd->start_src);
-	err |= cfc_check_trigger_is_unique(cmd->scan_begin_src);
-	err |= cfc_check_trigger_is_unique(cmd->convert_src);
-	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+	err |= comedi_check_trigger_is_unique(cmd->start_src);
+	err |= comedi_check_trigger_is_unique(cmd->scan_begin_src);
+	err |= comedi_check_trigger_is_unique(cmd->convert_src);
+	err |= comedi_check_trigger_is_unique(cmd->stop_src);
 
 	/* Step 2b : and mutually compatible */
 
@@ -819,7 +811,7 @@ static int cb_pcidas_ai_cmdtest(struct comedi_device *dev,
 
 	switch (cmd->start_src) {
 	case TRIG_NOW:
-		err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
 		break;
 	case TRIG_EXT:
 		/* External trigger, only CR_EDGE and CR_INVERT flags allowed */
@@ -836,20 +828,24 @@ static int cb_pcidas_ai_cmdtest(struct comedi_device *dev,
 		break;
 	}
 
-	if (cmd->scan_begin_src == TRIG_TIMER)
-		err |= cfc_check_trigger_arg_min(&cmd->scan_begin_arg,
-				thisboard->ai_speed * cmd->chanlist_len);
+	if (cmd->scan_begin_src == TRIG_TIMER) {
+		err |= comedi_check_trigger_arg_min(&cmd->scan_begin_arg,
+						    thisboard->ai_speed *
+						    cmd->chanlist_len);
+	}
 
-	if (cmd->convert_src == TRIG_TIMER)
-		err |= cfc_check_trigger_arg_min(&cmd->convert_arg,
-						 thisboard->ai_speed);
+	if (cmd->convert_src == TRIG_TIMER) {
+		err |= comedi_check_trigger_arg_min(&cmd->convert_arg,
+						    thisboard->ai_speed);
+	}
 
-	err |= cfc_check_trigger_arg_is(&cmd->scan_end_arg, cmd->chanlist_len);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
+					   cmd->chanlist_len);
 
 	if (cmd->stop_src == TRIG_COUNT)
-		err |= cfc_check_trigger_arg_min(&cmd->stop_arg, 1);
+		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
 	else	/* TRIG_NONE */
-		err |= cfc_check_trigger_arg_is(&cmd->stop_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
 
 	if (err)
 		return 3;
@@ -858,19 +854,13 @@ static int cb_pcidas_ai_cmdtest(struct comedi_device *dev,
 
 	if (cmd->scan_begin_src == TRIG_TIMER) {
 		arg = cmd->scan_begin_arg;
-		i8253_cascade_ns_to_timer(I8254_OSC_BASE_10MHZ,
-					  &devpriv->divisor1,
-					  &devpriv->divisor2,
-					  &arg, cmd->flags);
-		err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, arg);
+		comedi_8254_cascade_ns_to_timer(dev->pacer, &arg, cmd->flags);
+		err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, arg);
 	}
 	if (cmd->convert_src == TRIG_TIMER) {
 		arg = cmd->convert_arg;
-		i8253_cascade_ns_to_timer(I8254_OSC_BASE_10MHZ,
-					  &devpriv->divisor1,
-					  &devpriv->divisor2,
-					  &arg, cmd->flags);
-		err |= cfc_check_trigger_arg_is(&cmd->convert_arg, arg);
+		comedi_8254_cascade_ns_to_timer(dev->pacer, &arg, cmd->flags);
+		err |= comedi_check_trigger_arg_is(&cmd->convert_arg, arg);
 	}
 
 	if (err)
@@ -886,18 +876,6 @@ static int cb_pcidas_ai_cmdtest(struct comedi_device *dev,
 	return 0;
 }
 
-static void cb_pcidas_ai_load_counters(struct comedi_device *dev)
-{
-	struct cb_pcidas_private *devpriv = dev->private;
-	unsigned long timer_base = dev->iobase + ADC8254;
-
-	i8254_set_mode(timer_base, 0, 1, I8254_MODE2 | I8254_BINARY);
-	i8254_set_mode(timer_base, 0, 2, I8254_MODE2 | I8254_BINARY);
-
-	i8254_write(timer_base, 0, 1, devpriv->divisor1);
-	i8254_write(timer_base, 0, 2, devpriv->divisor2);
-}
-
 static int cb_pcidas_ai_cmd(struct comedi_device *dev,
 			    struct comedi_subdevice *s)
 {
@@ -933,8 +911,11 @@ static int cb_pcidas_ai_cmd(struct comedi_device *dev,
 	outw(bits, devpriv->control_status + ADCMUX_CONT);
 
 	/*  load counters */
-	if (cmd->scan_begin_src == TRIG_TIMER || cmd->convert_src == TRIG_TIMER)
-		cb_pcidas_ai_load_counters(dev);
+	if (cmd->scan_begin_src == TRIG_TIMER ||
+	    cmd->convert_src == TRIG_TIMER) {
+		comedi_8254_update_divisors(dev->pacer);
+		comedi_8254_pacer_enable(dev->pacer, 1, 2, true);
+	}
 
 	/*  enable interrupts */
 	spin_lock_irqsave(&dev->spinlock, flags);
@@ -1004,24 +985,23 @@ static int cb_pcidas_ao_cmdtest(struct comedi_device *dev,
 	const struct cb_pcidas_board *thisboard = dev->board_ptr;
 	struct cb_pcidas_private *devpriv = dev->private;
 	int err = 0;
-	unsigned int arg;
 
 	/* Step 1 : check if triggers are trivially valid */
 
-	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_INT);
-	err |= cfc_check_trigger_src(&cmd->scan_begin_src,
+	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_INT);
+	err |= comedi_check_trigger_src(&cmd->scan_begin_src,
 					TRIG_TIMER | TRIG_EXT);
-	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_NOW);
-	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
+	err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_NOW);
+	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
 	/* Step 2a : make sure trigger sources are unique */
 
-	err |= cfc_check_trigger_is_unique(cmd->scan_begin_src);
-	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+	err |= comedi_check_trigger_is_unique(cmd->scan_begin_src);
+	err |= comedi_check_trigger_is_unique(cmd->stop_src);
 
 	/* Step 2b : and mutually compatible */
 
@@ -1030,18 +1010,20 @@ static int cb_pcidas_ao_cmdtest(struct comedi_device *dev,
 
 	/* Step 3: check if arguments are trivially valid */
 
-	err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
 
-	if (cmd->scan_begin_src == TRIG_TIMER)
-		err |= cfc_check_trigger_arg_min(&cmd->scan_begin_arg,
-						 thisboard->ao_scan_speed);
+	if (cmd->scan_begin_src == TRIG_TIMER) {
+		err |= comedi_check_trigger_arg_min(&cmd->scan_begin_arg,
+						    thisboard->ao_scan_speed);
+	}
 
-	err |= cfc_check_trigger_arg_is(&cmd->scan_end_arg, cmd->chanlist_len);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
+					   cmd->chanlist_len);
 
 	if (cmd->stop_src == TRIG_COUNT)
-		err |= cfc_check_trigger_arg_min(&cmd->stop_arg, 1);
+		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
 	else	/* TRIG_NONE */
-		err |= cfc_check_trigger_arg_is(&cmd->stop_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
 
 	if (err)
 		return 3;
@@ -1049,12 +1031,11 @@ static int cb_pcidas_ao_cmdtest(struct comedi_device *dev,
 	/* step 4: fix up any arguments */
 
 	if (cmd->scan_begin_src == TRIG_TIMER) {
-		arg = cmd->scan_begin_arg;
-		i8253_cascade_ns_to_timer(I8254_OSC_BASE_10MHZ,
-					  &devpriv->ao_divisor1,
-					  &devpriv->ao_divisor2,
-					  &arg, cmd->flags);
-		err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, arg);
+		unsigned int arg = cmd->scan_begin_arg;
+
+		comedi_8254_cascade_ns_to_timer(devpriv->ao_pacer,
+						&arg, cmd->flags);
+		err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, arg);
 	}
 
 	if (err)
@@ -1139,18 +1120,6 @@ static int cb_pcidas_ao_inttrig(struct comedi_device *dev,
 	return 0;
 }
 
-static void cb_pcidas_ao_load_counters(struct comedi_device *dev)
-{
-	struct cb_pcidas_private *devpriv = dev->private;
-	unsigned long timer_base = dev->iobase + DAC8254;
-
-	i8254_set_mode(timer_base, 0, 1, I8254_MODE2 | I8254_BINARY);
-	i8254_set_mode(timer_base, 0, 2, I8254_MODE2 | I8254_BINARY);
-
-	i8254_write(timer_base, 0, 1, devpriv->ao_divisor1);
-	i8254_write(timer_base, 0, 2, devpriv->ao_divisor2);
-}
-
 static int cb_pcidas_ao_cmd(struct comedi_device *dev,
 			    struct comedi_subdevice *s)
 {
@@ -1180,8 +1149,10 @@ static int cb_pcidas_ao_cmd(struct comedi_device *dev,
 	outw(0, devpriv->ao_registers + DACFIFOCLR);
 
 	/*  load counters */
-	if (cmd->scan_begin_src == TRIG_TIMER)
-		cb_pcidas_ao_load_counters(dev);
+	if (cmd->scan_begin_src == TRIG_TIMER) {
+		comedi_8254_update_divisors(devpriv->ao_pacer);
+		comedi_8254_pacer_enable(devpriv->ao_pacer, 1, 2, true);
+	}
 
 	/*  set pacer source */
 	spin_lock_irqsave(&dev->spinlock, flags);
@@ -1408,6 +1379,17 @@ static int cb_pcidas_auto_attach(struct comedi_device *dev,
 	}
 	dev->irq = pcidev->irq;
 
+	dev->pacer = comedi_8254_init(dev->iobase + ADC8254,
+				      I8254_OSC_BASE_10MHZ, I8254_IO8, 0);
+	if (!dev->pacer)
+		return -ENOMEM;
+
+	devpriv->ao_pacer = comedi_8254_init(dev->iobase + DAC8254,
+					     I8254_OSC_BASE_10MHZ,
+					     I8254_IO8, 0);
+	if (!devpriv->ao_pacer)
+		return -ENOMEM;
+
 	ret = comedi_alloc_subdevices(dev, 7);
 	if (ret)
 		return ret;
@@ -1530,8 +1512,9 @@ static int cb_pcidas_auto_attach(struct comedi_device *dev,
 			dac08_write(dev, s->maxdata / 2);
 			s->readback[i] = s->maxdata / 2;
 		}
-	} else
+	} else {
 		s->type = COMEDI_SUBD_UNUSED;
+	}
 
 	/*  make sure mailbox 4 is empty */
 	inl(devpriv->s5933_config + AMCC_OP_REG_IMB4);
@@ -1550,9 +1533,11 @@ static void cb_pcidas_detach(struct comedi_device *dev)
 {
 	struct cb_pcidas_private *devpriv = dev->private;
 
-	if (devpriv && devpriv->s5933_config) {
-		outl(INTCSR_INBOX_INTR_STATUS,
-		     devpriv->s5933_config + AMCC_OP_REG_INTCSR);
+	if (devpriv) {
+		if (devpriv->s5933_config)
+			outl(INTCSR_INBOX_INTR_STATUS,
+			     devpriv->s5933_config + AMCC_OP_REG_INTCSR);
+		kfree(devpriv->ao_pacer);
 	}
 	comedi_pci_detach(dev);
 }
diff --git a/drivers/staging/comedi/drivers/cb_pcidas64.c b/drivers/staging/comedi/drivers/cb_pcidas64.c
index 5b43e4e..a94c33c 100644
--- a/drivers/staging/comedi/drivers/cb_pcidas64.c
+++ b/drivers/staging/comedi/drivers/cb_pcidas64.c
@@ -81,16 +81,13 @@ TODO:
 */
 
 #include <linux/module.h>
-#include <linux/pci.h>
 #include <linux/delay.h>
 #include <linux/interrupt.h>
 
-#include "../comedidev.h"
+#include "../comedi_pci.h"
 
-#include "8253.h"
 #include "8255.h"
 #include "plx9080.h"
-#include "comedi_fc.h"
 
 #define TIMER_BASE 25		/*  40MHz master clock */
 /* 100kHz 'prescaled' clock for slow acquisition,
@@ -1474,9 +1471,8 @@ static int alloc_and_init_dma_members(struct comedi_device *dev)
 		devpriv->ai_buffer[i] =
 			pci_alloc_consistent(pcidev, DMA_BUFFER_SIZE,
 					     &devpriv->ai_buffer_bus_addr[i]);
-		if (devpriv->ai_buffer[i] == NULL)
+		if (!devpriv->ai_buffer[i])
 			return -ENOMEM;
-
 	}
 	for (i = 0; i < AO_DMA_RING_COUNT; i++) {
 		if (ao_cmd_is_supported(thisboard)) {
@@ -1484,9 +1480,8 @@ static int alloc_and_init_dma_members(struct comedi_device *dev)
 				pci_alloc_consistent(pcidev, DMA_BUFFER_SIZE,
 						     &devpriv->
 						      ao_buffer_bus_addr[i]);
-			if (devpriv->ao_buffer[i] == NULL)
+			if (!devpriv->ao_buffer[i])
 				return -ENOMEM;
-
 		}
 	}
 	/*  allocate dma descriptors */
@@ -1494,7 +1489,7 @@ static int alloc_and_init_dma_members(struct comedi_device *dev)
 		pci_alloc_consistent(pcidev, sizeof(struct plx_dma_desc) *
 				     ai_dma_ring_count(thisboard),
 				     &devpriv->ai_dma_desc_bus_addr);
-	if (devpriv->ai_dma_desc == NULL)
+	if (!devpriv->ai_dma_desc)
 		return -ENOMEM;
 
 	if (ao_cmd_is_supported(thisboard)) {
@@ -1503,7 +1498,7 @@ static int alloc_and_init_dma_members(struct comedi_device *dev)
 					     sizeof(struct plx_dma_desc) *
 					     AO_DMA_RING_COUNT,
 					     &devpriv->ao_dma_desc_bus_addr);
-		if (devpriv->ao_dma_desc == NULL)
+		if (!devpriv->ao_dma_desc)
 			return -ENOMEM;
 	}
 	/*  initialize dma descriptors */
@@ -1704,8 +1699,7 @@ static void i2c_write(struct comedi_device *dev, unsigned int address,
 
 	/*  get acknowledge */
 	if (i2c_read_ack(dev) != 0) {
-		dev_err(dev->class_dev, "%s failed: no acknowledge\n",
-			__func__);
+		dev_err(dev->class_dev, "failed: no acknowledge\n");
 		i2c_stop(dev);
 		return;
 	}
@@ -1713,8 +1707,7 @@ static void i2c_write(struct comedi_device *dev, unsigned int address,
 	for (i = 0; i < length; i++) {
 		i2c_write_byte(dev, data[i]);
 		if (i2c_read_ack(dev) != 0) {
-			dev_err(dev->class_dev, "%s failed: no acknowledge\n",
-				__func__);
+			dev_err(dev->class_dev, "failed: no acknowledge\n");
 			i2c_stop(dev);
 			return;
 		}
@@ -1841,7 +1834,6 @@ static int ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s,
 	}
 
 	for (n = 0; n < insn->n; n++) {
-
 		/*  clear adc buffer (inside loop for 4020 sake) */
 		writew(0, devpriv->main_iobase + ADC_BUFFER_CLEAR_REG);
 
@@ -1903,7 +1895,6 @@ static int ai_config_block_size(struct comedi_device *dev, unsigned int *data)
 		retval = set_ai_fifo_size(dev, fifo_size);
 		if (retval < 0)
 			return retval;
-
 	}
 
 	block_size = ai_fifo_size(dev) / fifo->num_segments * bytes_in_sample;
@@ -2001,7 +1992,8 @@ static unsigned int get_divisor(unsigned int ns, unsigned int flags)
 static void check_adc_timing(struct comedi_device *dev, struct comedi_cmd *cmd)
 {
 	const struct pcidas64_board *thisboard = dev->board_ptr;
-	unsigned int convert_divisor = 0, scan_divisor;
+	unsigned long long convert_divisor = 0;
+	unsigned int scan_divisor;
 	static const int min_convert_divisor = 3;
 	static const int max_convert_divisor =
 		max_counter_value + min_convert_divisor;
@@ -2027,7 +2019,6 @@ static void check_adc_timing(struct comedi_device *dev, struct comedi_cmd *cmd)
 	if (cmd->scan_begin_src == TRIG_TIMER) {
 		scan_divisor = get_divisor(cmd->scan_begin_arg, cmd->flags);
 		if (cmd->convert_src == TRIG_TIMER) {
-			/*  XXX check for integer overflows */
 			min_scan_divisor = convert_divisor * cmd->chanlist_len;
 			max_scan_divisor =
 				(convert_divisor * cmd->chanlist_len - 1) +
@@ -2094,34 +2085,34 @@ static int ai_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s,
 
 	/* Step 1 : check if triggers are trivially valid */
 
-	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_EXT);
+	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_EXT);
 
 	triggers = TRIG_TIMER;
 	if (thisboard->layout == LAYOUT_4020)
 		triggers |= TRIG_OTHER;
 	else
 		triggers |= TRIG_FOLLOW;
-	err |= cfc_check_trigger_src(&cmd->scan_begin_src, triggers);
+	err |= comedi_check_trigger_src(&cmd->scan_begin_src, triggers);
 
 	triggers = TRIG_TIMER;
 	if (thisboard->layout == LAYOUT_4020)
 		triggers |= TRIG_NOW;
 	else
 		triggers |= TRIG_EXT;
-	err |= cfc_check_trigger_src(&cmd->convert_src, triggers);
-	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= cfc_check_trigger_src(&cmd->stop_src,
-				     TRIG_COUNT | TRIG_EXT | TRIG_NONE);
+	err |= comedi_check_trigger_src(&cmd->convert_src, triggers);
+	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= comedi_check_trigger_src(&cmd->stop_src,
+					TRIG_COUNT | TRIG_EXT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
 	/* Step 2a : make sure trigger sources are unique */
 
-	err |= cfc_check_trigger_is_unique(cmd->start_src);
-	err |= cfc_check_trigger_is_unique(cmd->scan_begin_src);
-	err |= cfc_check_trigger_is_unique(cmd->convert_src);
-	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+	err |= comedi_check_trigger_is_unique(cmd->start_src);
+	err |= comedi_check_trigger_is_unique(cmd->scan_begin_src);
+	err |= comedi_check_trigger_is_unique(cmd->convert_src);
+	err |= comedi_check_trigger_is_unique(cmd->stop_src);
 
 	/* Step 2b : and mutually compatible */
 
@@ -2135,7 +2126,7 @@ static int ai_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s,
 
 	switch (cmd->start_src) {
 	case TRIG_NOW:
-		err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
 		break;
 	case TRIG_EXT:
 		/*
@@ -2147,30 +2138,37 @@ static int ai_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s,
 
 	if (cmd->convert_src == TRIG_TIMER) {
 		if (thisboard->layout == LAYOUT_4020) {
-			err |= cfc_check_trigger_arg_is(&cmd->convert_arg, 0);
+			err |= comedi_check_trigger_arg_is(&cmd->convert_arg,
+							   0);
 		} else {
-			err |= cfc_check_trigger_arg_min(&cmd->convert_arg,
-							 thisboard->ai_speed);
-			/* if scans are timed faster than conversion rate allows */
-			if (cmd->scan_begin_src == TRIG_TIMER)
-				err |= cfc_check_trigger_arg_min(
+			err |= comedi_check_trigger_arg_min(&cmd->convert_arg,
+							    thisboard->
+							    ai_speed);
+			/*
+			 * if scans are timed faster than conversion rate
+			 * allows
+			 */
+			if (cmd->scan_begin_src == TRIG_TIMER) {
+				err |= comedi_check_trigger_arg_min(
 						&cmd->scan_begin_arg,
 						cmd->convert_arg *
 						cmd->chanlist_len);
+			}
 		}
 	}
 
-	err |= cfc_check_trigger_arg_min(&cmd->chanlist_len, 1);
-	err |= cfc_check_trigger_arg_is(&cmd->scan_end_arg, cmd->chanlist_len);
+	err |= comedi_check_trigger_arg_min(&cmd->chanlist_len, 1);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
+					   cmd->chanlist_len);
 
 	switch (cmd->stop_src) {
 	case TRIG_EXT:
 		break;
 	case TRIG_COUNT:
-		err |= cfc_check_trigger_arg_min(&cmd->stop_arg, 1);
+		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
 		break;
 	case TRIG_NONE:
-		err |= cfc_check_trigger_arg_is(&cmd->stop_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
 		break;
 	default:
 		break;
@@ -2637,8 +2635,9 @@ static int ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 		bits |= ADC_START_TRIG_EXT_BITS;
 		if (cmd->start_arg & CR_INVERT)
 			bits |= ADC_START_TRIG_FALLING_BIT;
-	} else if (cmd->start_src == TRIG_NOW)
+	} else if (cmd->start_src == TRIG_NOW) {
 		bits |= ADC_START_TRIG_SOFT_BITS;
+	}
 	if (use_hw_sample_counter(cmd))
 		bits |= ADC_SAMPLE_COUNTER_EN_BIT;
 	writew(bits, devpriv->main_iobase + ADC_CONTROL0_REG);
@@ -2827,8 +2826,9 @@ static void handle_ai_interrupt(struct comedi_device *dev,
 		if (devpriv->ai_cmd_running) {
 			spin_unlock_irqrestore(&dev->spinlock, flags);
 			pio_drain_ai_fifo(dev);
-		} else
+		} else {
 			spin_unlock_irqrestore(&dev->spinlock, flags);
+		}
 	}
 	/*  if we are have all the data, then quit */
 	if ((cmd->stop_src == TRIG_COUNT &&
@@ -2978,7 +2978,7 @@ static void handle_ao_interrupt(struct comedi_device *dev,
 	unsigned long flags;
 
 	/* board might not support ao, in which case write_subdev is NULL */
-	if (s == NULL)
+	if (!s)
 		return;
 	async = s->async;
 	cmd = &async->cmd;
@@ -3312,20 +3312,20 @@ static int ao_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s,
 
 	/* Step 1 : check if triggers are trivially valid */
 
-	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_INT | TRIG_EXT);
-	err |= cfc_check_trigger_src(&cmd->scan_begin_src,
-				     TRIG_TIMER | TRIG_EXT);
-	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_NOW);
-	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_NONE);
+	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_INT | TRIG_EXT);
+	err |= comedi_check_trigger_src(&cmd->scan_begin_src,
+					TRIG_TIMER | TRIG_EXT);
+	err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_NOW);
+	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_NONE);
 
 	if (err)
 		return 1;
 
 	/* Step 2a : make sure trigger sources are unique */
 
-	err |= cfc_check_trigger_is_unique(cmd->start_src);
-	err |= cfc_check_trigger_is_unique(cmd->scan_begin_src);
+	err |= comedi_check_trigger_is_unique(cmd->start_src);
+	err |= comedi_check_trigger_is_unique(cmd->scan_begin_src);
 
 	/* Step 2b : and mutually compatible */
 
@@ -3340,11 +3340,11 @@ static int ao_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s,
 
 	/* Step 3: check if arguments are trivially valid */
 
-	err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
 
 	if (cmd->scan_begin_src == TRIG_TIMER) {
-		err |= cfc_check_trigger_arg_min(&cmd->scan_begin_arg,
-						 thisboard->ao_scan_speed);
+		err |= comedi_check_trigger_arg_min(&cmd->scan_begin_arg,
+						    thisboard->ao_scan_speed);
 		if (get_ao_divisor(cmd->scan_begin_arg, cmd->flags) >
 		    max_counter_value) {
 			cmd->scan_begin_arg = (max_counter_value + 2) *
@@ -3353,8 +3353,9 @@ static int ao_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s,
 		}
 	}
 
-	err |= cfc_check_trigger_arg_min(&cmd->chanlist_len, 1);
-	err |= cfc_check_trigger_arg_is(&cmd->scan_end_arg, cmd->chanlist_len);
+	err |= comedi_check_trigger_arg_min(&cmd->chanlist_len, 1);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
+					   cmd->chanlist_len);
 
 	if (err)
 		return 3;
@@ -3817,8 +3818,9 @@ static int setup_subdevices(struct comedi_device *dev)
 		s->maxdata = 1;
 		s->range_table = &range_digital;
 		s->insn_bits = di_rbits;
-	} else
+	} else {
 		s->type = COMEDI_SUBD_UNUSED;
+	}
 
 	/*  digital output */
 	if (thisboard->layout == LAYOUT_64XX) {
@@ -3829,8 +3831,9 @@ static int setup_subdevices(struct comedi_device *dev)
 		s->maxdata = 1;
 		s->range_table = &range_digital;
 		s->insn_bits = do_wbits;
-	} else
+	} else {
 		s->type = COMEDI_SUBD_UNUSED;
+	}
 
 	/* 8255 */
 	s = &dev->subdevices[4];
@@ -3858,8 +3861,9 @@ static int setup_subdevices(struct comedi_device *dev)
 		s->range_table = &range_digital;
 		s->insn_config = dio_60xx_config_insn;
 		s->insn_bits = dio_60xx_wbits;
-	} else
+	} else {
 		s->type = COMEDI_SUBD_UNUSED;
+	}
 
 	/*  caldac */
 	s = &dev->subdevices[6];
@@ -3898,8 +3902,9 @@ static int setup_subdevices(struct comedi_device *dev)
 			ad8402_write(dev, i, s->maxdata / 2);
 			s->readback[i] = s->maxdata / 2;
 		}
-	} else
+	} else {
 		s->type = COMEDI_SUBD_UNUSED;
+	}
 
 	/* serial EEPROM, if present */
 	s = &dev->subdevices[8];
@@ -3909,8 +3914,9 @@ static int setup_subdevices(struct comedi_device *dev)
 		s->n_chan = 128;
 		s->maxdata = 0xffff;
 		s->insn_read = eeprom_read_insn;
-	} else
+	} else {
 		s->type = COMEDI_SUBD_UNUSED;
+	}
 
 	/*  user counter subd XXX */
 	s = &dev->subdevices[9];
diff --git a/drivers/staging/comedi/drivers/cb_pcidda.c b/drivers/staging/comedi/drivers/cb_pcidda.c
index 2b2cfcd..30c9e27 100644
--- a/drivers/staging/comedi/drivers/cb_pcidda.c
+++ b/drivers/staging/comedi/drivers/cb_pcidda.c
@@ -36,11 +36,9 @@
  */
 
 #include <linux/module.h>
-#include <linux/pci.h>
 
-#include "../comedidev.h"
+#include "../comedi_pci.h"
 
-#include "comedi_fc.h"
 #include "8255.h"
 
 #define EEPROM_SIZE	128	/*  number of entries in eeprom */
diff --git a/drivers/staging/comedi/drivers/cb_pcimdas.c b/drivers/staging/comedi/drivers/cb_pcimdas.c
index 70dd2c9..c458e50 100644
--- a/drivers/staging/comedi/drivers/cb_pcimdas.c
+++ b/drivers/staging/comedi/drivers/cb_pcimdas.c
@@ -42,37 +42,112 @@
  */
 
 #include <linux/module.h>
-#include <linux/pci.h>
 #include <linux/interrupt.h>
 
-#include "../comedidev.h"
+#include "../comedi_pci.h"
 
+#include "comedi_8254.h"
 #include "plx9052.h"
 #include "8255.h"
 
-/* Registers for the PCIM-DAS1602/16 and PCIe-DAS1602/16 */
-
-/* DAC Offsets */
-#define ADC_TRIG 0
-#define DAC0_OFFSET 2
-#define DAC1_OFFSET 4
-
-/* AI and Counter Constants */
-#define MUX_LIMITS 0
-#define MAIN_CONN_DIO 1
-#define ADC_STAT 2
-#define ADC_CONV_STAT 3
-#define ADC_INT 4
-#define ADC_PACER 5
-#define BURST_MODE 6
-#define PROG_GAIN 7
-#define CLK8254_1_DATA 8
-#define CLK8254_2_DATA 9
-#define CLK8254_3_DATA 10
-#define CLK8254_CONTROL 11
-#define USER_COUNTER 12
-#define RESID_COUNT_H 13
-#define RESID_COUNT_L 14
+/*
+ * PCI Bar 1 Register map
+ * see plx9052.h for register and bit defines
+ */
+
+/*
+ * PCI Bar 2 Register map (devpriv->daqio)
+ */
+#define PCIMDAS_AI_REG			0x00
+#define PCIMDAS_AI_SOFTTRIG_REG		0x00
+#define PCIMDAS_AO_REG(x)		(0x02 + ((x) * 2))
+
+/*
+ * PCI Bar 3 Register map (devpriv->BADR3)
+ */
+#define PCIMDAS_MUX_REG			0x00
+#define PCIMDAS_MUX(_lo, _hi)		((_lo) | ((_hi) << 4))
+#define PCIMDAS_DI_DO_REG		0x01
+#define PCIMDAS_STATUS_REG		0x02
+#define PCIMDAS_STATUS_EOC		BIT(7)
+#define PCIMDAS_STATUS_UB		BIT(6)
+#define PCIMDAS_STATUS_MUX		BIT(5)
+#define PCIMDAS_STATUS_CLK		BIT(4)
+#define PCIMDAS_STATUS_TO_CURR_MUX(x)	((x) & 0xf)
+#define PCIMDAS_CONV_STATUS_REG		0x03
+#define PCIMDAS_CONV_STATUS_EOC		BIT(7)
+#define PCIMDAS_CONV_STATUS_EOB		BIT(6)
+#define PCIMDAS_CONV_STATUS_EOA		BIT(5)
+#define PCIMDAS_CONV_STATUS_FNE		BIT(4)
+#define PCIMDAS_CONV_STATUS_FHF		BIT(3)
+#define PCIMDAS_CONV_STATUS_OVERRUN	BIT(2)
+#define PCIMDAS_IRQ_REG			0x04
+#define PCIMDAS_IRQ_INTE		BIT(7)
+#define PCIMDAS_IRQ_INT			BIT(6)
+#define PCIMDAS_IRQ_OVERRUN		BIT(4)
+#define PCIMDAS_IRQ_EOA			BIT(3)
+#define PCIMDAS_IRQ_EOA_INT_SEL		BIT(2)
+#define PCIMDAS_IRQ_INTSEL(x)		((x) << 0)
+#define PCIMDAS_IRQ_INTSEL_EOC		PCIMDAS_IRQ_INTSEL(0)
+#define PCIMDAS_IRQ_INTSEL_FNE		PCIMDAS_IRQ_INTSEL(1)
+#define PCIMDAS_IRQ_INTSEL_EOB		PCIMDAS_IRQ_INTSEL(2)
+#define PCIMDAS_IRQ_INTSEL_FHF_EOA	PCIMDAS_IRQ_INTSEL(3)
+#define PCIMDAS_PACER_REG		0x05
+#define PCIMDAS_PACER_GATE_STATUS	BIT(6)
+#define PCIMDAS_PACER_GATE_POL		BIT(5)
+#define PCIMDAS_PACER_GATE_LATCH	BIT(4)
+#define PCIMDAS_PACER_GATE_EN		BIT(3)
+#define PCIMDAS_PACER_EXT_PACER_POL	BIT(2)
+#define PCIMDAS_PACER_SRC(x)		((x) << 0)
+#define PCIMDAS_PACER_SRC_POLLED	PCIMDAS_PACER_SRC(0)
+#define PCIMDAS_PACER_SRC_EXT		PCIMDAS_PACER_SRC(2)
+#define PCIMDAS_PACER_SRC_INT		PCIMDAS_PACER_SRC(3)
+#define PCIMDAS_PACER_SRC_MASK		(3 << 0)
+#define PCIMDAS_BURST_REG		0x06
+#define PCIMDAS_BURST_BME		BIT(1)
+#define PCIMDAS_BURST_CONV_EN		BIT(0)
+#define PCIMDAS_GAIN_REG		0x07
+#define PCIMDAS_8254_BASE		0x08
+#define PCIMDAS_USER_CNTR_REG		0x0c
+#define PCIMDAS_USER_CNTR_CTR1_CLK_SEL	BIT(0)
+#define PCIMDAS_RESIDUE_MSB_REG		0x0d
+#define PCIMDAS_RESIDUE_LSB_REG		0x0e
+
+/*
+ * PCI Bar 4 Register map (dev->iobase)
+ */
+#define PCIMDAS_8255_BASE		0x00
+
+static const struct comedi_lrange cb_pcimdas_ai_bip_range = {
+	4, {
+		BIP_RANGE(10),
+		BIP_RANGE(5),
+		BIP_RANGE(2.5),
+		BIP_RANGE(1.25)
+	}
+};
+
+static const struct comedi_lrange cb_pcimdas_ai_uni_range = {
+	4, {
+		UNI_RANGE(10),
+		UNI_RANGE(5),
+		UNI_RANGE(2.5),
+		UNI_RANGE(1.25)
+	}
+};
+
+/*
+ * The Analog Output range is not programmable. The DAC ranges are
+ * jumper-settable on the board. The settings are not software-readable.
+ */
+static const struct comedi_lrange cb_pcimdas_ao_range = {
+	4, {
+		BIP_RANGE(10),
+		BIP_RANGE(5),
+		UNI_RANGE(10),
+		UNI_RANGE(5)
+	}
+};
 
 /*
  * this structure is for data unique to this hardware driver.  If
@@ -94,59 +169,47 @@ static int cb_pcimdas_ai_eoc(struct comedi_device *dev,
 	struct cb_pcimdas_private *devpriv = dev->private;
 	unsigned int status;
 
-	status = inb(devpriv->BADR3 + 2);
-	if ((status & 0x80) == 0)
+	status = inb(devpriv->BADR3 + PCIMDAS_STATUS_REG);
+	if ((status & PCIMDAS_STATUS_EOC) == 0)
 		return 0;
 	return -EBUSY;
 }
 
-static int cb_pcimdas_ai_rinsn(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn, unsigned int *data)
+static int cb_pcimdas_ai_insn_read(struct comedi_device *dev,
+				   struct comedi_subdevice *s,
+				   struct comedi_insn *insn,
+				   unsigned int *data)
 {
 	struct cb_pcimdas_private *devpriv = dev->private;
+	unsigned int chan = CR_CHAN(insn->chanspec);
+	unsigned int range = CR_RANGE(insn->chanspec);
 	int n;
 	unsigned int d;
-	int chan = CR_CHAN(insn->chanspec);
-	unsigned short chanlims;
-	int maxchans;
 	int ret;
 
 	/*  only support sw initiated reads from a single channel */
 
-	/* check channel number */
-	if ((inb(devpriv->BADR3 + 2) & 0x20) == 0)	/* differential mode */
-		maxchans = s->n_chan / 2;
-	else
-		maxchans = s->n_chan;
-
-	if (chan > (maxchans - 1))
-		return -ETIMEDOUT;	/* *** Wrong error code. Fixme. */
-
 	/* configure for sw initiated read */
-	d = inb(devpriv->BADR3 + 5);
-	if ((d & 0x03) > 0) {	/* only reset if needed. */
-		d = d & 0xfd;
-		outb(d, devpriv->BADR3 + 5);
+	d = inb(devpriv->BADR3 + PCIMDAS_PACER_REG);
+	if ((d & PCIMDAS_PACER_SRC_MASK) != PCIMDAS_PACER_SRC_POLLED) {
+		d &= ~PCIMDAS_PACER_SRC_MASK;
+		d |= PCIMDAS_PACER_SRC_POLLED;
+		outb(d, devpriv->BADR3 + PCIMDAS_PACER_REG);
 	}
 
 	/* set bursting off, conversions on */
-	outb(0x01, devpriv->BADR3 + 6);
+	outb(PCIMDAS_BURST_CONV_EN, devpriv->BADR3 + PCIMDAS_BURST_REG);
 
-	/* set range to 10V. UP/BP is controlled by a switch on the board */
-	outb(0x00, devpriv->BADR3 + 7);
+	/* set range */
+	outb(range, devpriv->BADR3 + PCIMDAS_GAIN_REG);
 
-	/*
-	 * write channel limits to multiplexer, set Low (bits 0-3) and
-	 * High (bits 4-7) channels to chan.
-	 */
-	chanlims = chan | (chan << 4);
-	outb(chanlims, devpriv->BADR3 + 0);
+	/* set mux for single channel scan */
+	outb(PCIMDAS_MUX(chan, chan), devpriv->BADR3 + PCIMDAS_MUX_REG);
 
 	/* convert n samples */
 	for (n = 0; n < insn->n; n++) {
 		/* trigger conversion */
-		outw(0, devpriv->daqio + 0);
+		outw(0, devpriv->daqio + PCIMDAS_AI_SOFTTRIG_REG);
 
 		/* wait for conversion to end */
 		ret = comedi_timeout(dev, s, insn, cb_pcimdas_ai_eoc, 0);
@@ -154,7 +217,7 @@ static int cb_pcimdas_ai_rinsn(struct comedi_device *dev,
 			return ret;
 
 		/* read data */
-		data[n] = inw(devpriv->daqio + 0);
+		data[n] = inw(devpriv->daqio + PCIMDAS_AI_REG);
 	}
 
 	/* return the number of samples read/written */
@@ -169,20 +232,128 @@ static int cb_pcimdas_ao_insn_write(struct comedi_device *dev,
 	struct cb_pcimdas_private *devpriv = dev->private;
 	unsigned int chan = CR_CHAN(insn->chanspec);
 	unsigned int val = s->readback[chan];
-	unsigned int reg = (chan) ? DAC1_OFFSET : DAC0_OFFSET;
 	int i;
 
 	for (i = 0; i < insn->n; i++) {
 		val = data[i];
-		outw(val, devpriv->daqio + reg);
+		outw(val, devpriv->daqio + PCIMDAS_AO_REG(chan));
 	}
 	s->readback[chan] = val;
 
 	return insn->n;
 }
 
+static int cb_pcimdas_di_insn_read(struct comedi_device *dev,
+				   struct comedi_subdevice *s,
+				   struct comedi_insn *insn,
+				   unsigned int *data)
+{
+	struct cb_pcimdas_private *devpriv = dev->private;
+	unsigned int val;
+
+	val = inb(devpriv->BADR3 + PCIMDAS_DI_DO_REG);
+
+	data[1] = val & 0x0f;
+
+	return insn->n;
+}
+
+static int cb_pcimdas_do_insn_write(struct comedi_device *dev,
+				    struct comedi_subdevice *s,
+				    struct comedi_insn *insn,
+				    unsigned int *data)
+{
+	struct cb_pcimdas_private *devpriv = dev->private;
+
+	if (comedi_dio_update_state(s, data))
+		outb(s->state, devpriv->BADR3 + PCIMDAS_DI_DO_REG);
+
+	data[1] = s->state;
+
+	return insn->n;
+}
+
+static int cb_pcimdas_counter_insn_config(struct comedi_device *dev,
+					  struct comedi_subdevice *s,
+					  struct comedi_insn *insn,
+					  unsigned int *data)
+{
+	struct cb_pcimdas_private *devpriv = dev->private;
+	unsigned int ctrl;
+
+	switch (data[0]) {
+	case INSN_CONFIG_SET_CLOCK_SRC:
+		switch (data[1]) {
+		case 0:	/* internal 100 kHz clock */
+			ctrl = PCIMDAS_USER_CNTR_CTR1_CLK_SEL;
+			break;
+		case 1:	/* external clk on pin 21 */
+			ctrl = 0;
+			break;
+		default:
+			return -EINVAL;
+		}
+		outb(ctrl, devpriv->BADR3 + PCIMDAS_USER_CNTR_REG);
+		break;
+	case INSN_CONFIG_GET_CLOCK_SRC:
+		ctrl = inb(devpriv->BADR3 + PCIMDAS_USER_CNTR_REG);
+		if (ctrl & PCIMDAS_USER_CNTR_CTR1_CLK_SEL) {
+			data[1] = 0;
+			data[2] = I8254_OSC_BASE_100KHZ;
+		} else {
+			data[1] = 1;
+			data[2] = 0;
+		}
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return insn->n;
+}
+
+static unsigned int cb_pcimdas_pacer_clk(struct comedi_device *dev)
+{
+	struct cb_pcimdas_private *devpriv = dev->private;
+	unsigned int status;
+
+	/* The Pacer Clock jumper selects a 10 MHz or 1 MHz clock */
+	status = inb(devpriv->BADR3 + PCIMDAS_STATUS_REG);
+	if (status & PCIMDAS_STATUS_CLK)
+		return I8254_OSC_BASE_10MHZ;
+	return I8254_OSC_BASE_1MHZ;
+}
+
+static bool cb_pcimdas_is_ai_se(struct comedi_device *dev)
+{
+	struct cb_pcimdas_private *devpriv = dev->private;
+	unsigned int status;
+
+	/*
+	 * The number of Analog Input channels is set with the
+	 * Analog Input Mode Switch on the board. The board can
+	 * have 16 single-ended or 8 differential channels.
+	 */
+	status = inb(devpriv->BADR3 + PCIMDAS_STATUS_REG);
+	return status & PCIMDAS_STATUS_MUX;
+}
+
+static bool cb_pcimdas_is_ai_uni(struct comedi_device *dev)
+{
+	struct cb_pcimdas_private *devpriv = dev->private;
+	unsigned int status;
+
+	/*
+	 * The Analog Input range polarity is set with the
+	 * Analog Input Polarity Switch on the board. The
+	 * inputs can be set to Unipolar or Bipolar ranges.
+	 */
+	status = inb(devpriv->BADR3 + PCIMDAS_STATUS_REG);
+	return status & PCIMDAS_STATUS_UB;
+}
+
 static int cb_pcimdas_auto_attach(struct comedi_device *dev,
-					    unsigned long context_unused)
+				  unsigned long context_unused)
 {
 	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
 	struct cb_pcimdas_private *devpriv;
@@ -201,42 +372,79 @@ static int cb_pcimdas_auto_attach(struct comedi_device *dev,
 	devpriv->BADR3 = pci_resource_start(pcidev, 3);
 	dev->iobase = pci_resource_start(pcidev, 4);
 
-	ret = comedi_alloc_subdevices(dev, 3);
+	dev->pacer = comedi_8254_init(devpriv->BADR3 + PCIMDAS_8254_BASE,
+				      cb_pcimdas_pacer_clk(dev),
+				      I8254_IO8, 0);
+	if (!dev->pacer)
+		return -ENOMEM;
+
+	ret = comedi_alloc_subdevices(dev, 6);
 	if (ret)
 		return ret;
 
+	/* Analog Input subdevice */
 	s = &dev->subdevices[0];
-	/* dev->read_subdev=s; */
-	/*  analog input subdevice */
-	s->type = COMEDI_SUBD_AI;
-	s->subdev_flags = SDF_READABLE | SDF_GROUND;
-	s->n_chan = 16;
-	s->maxdata = 0xffff;
-	s->range_table = &range_unknown;
-	s->len_chanlist = 1;	/*  This is the maximum chanlist length that */
-	/*  the board can handle */
-	s->insn_read = cb_pcimdas_ai_rinsn;
+	s->type		= COMEDI_SUBD_AI;
+	s->subdev_flags	= SDF_READABLE;
+	if (cb_pcimdas_is_ai_se(dev)) {
+		s->subdev_flags	|= SDF_GROUND;
+		s->n_chan	= 16;
+	} else {
+		s->subdev_flags	|= SDF_DIFF;
+		s->n_chan	= 8;
+	}
+	s->maxdata	= 0xffff;
+	s->range_table	= cb_pcimdas_is_ai_uni(dev) ? &cb_pcimdas_ai_uni_range
+						    : &cb_pcimdas_ai_bip_range;
+	s->insn_read	= cb_pcimdas_ai_insn_read;
 
+	/* Analog Output subdevice */
 	s = &dev->subdevices[1];
-	/*  analog output subdevice */
-	s->type = COMEDI_SUBD_AO;
-	s->subdev_flags = SDF_WRITABLE;
-	s->n_chan = 2;
-	s->maxdata = 0xfff;
-	/* ranges are hardware settable, but not software readable. */
-	s->range_table = &range_unknown;
-	s->insn_write = cb_pcimdas_ao_insn_write;
+	s->type		= COMEDI_SUBD_AO;
+	s->subdev_flags	= SDF_WRITABLE;
+	s->n_chan	= 2;
+	s->maxdata	= 0xfff;
+	s->range_table	= &cb_pcimdas_ao_range;
+	s->insn_write	= cb_pcimdas_ao_insn_write;
 
 	ret = comedi_alloc_subdev_readback(s);
 	if (ret)
 		return ret;
 
+	/* Digital I/O subdevice */
 	s = &dev->subdevices[2];
-	/* digital i/o subdevice */
-	ret = subdev_8255_init(dev, s, NULL, 0x00);
+	ret = subdev_8255_init(dev, s, NULL, PCIMDAS_8255_BASE);
 	if (ret)
 		return ret;
 
+	/* Digital Input subdevice (main connector) */
+	s = &dev->subdevices[3];
+	s->type		= COMEDI_SUBD_DI;
+	s->subdev_flags	= SDF_READABLE;
+	s->n_chan	= 4;
+	s->maxdata	= 1;
+	s->range_table	= &range_digital;
+	s->insn_read	= cb_pcimdas_di_insn_read;
+
+	/* Digital Output subdevice (main connector) */
+	s = &dev->subdevices[4];
+	s->type		= COMEDI_SUBD_DO;
+	s->subdev_flags	= SDF_WRITABLE;
+	s->n_chan	= 4;
+	s->maxdata	= 1;
+	s->range_table	= &range_digital;
+	s->insn_write	= cb_pcimdas_do_insn_write;
+
+	/* Counter subdevice (8254) */
+	s = &dev->subdevices[5];
+	comedi_8254_subdevice_init(s, dev->pacer);
+
+	dev->pacer->insn_config = cb_pcimdas_counter_insn_config;
+
+	/* counters 1 and 2 are used internally for the pacer */
+	comedi_8254_set_busy(dev->pacer, 1, true);
+	comedi_8254_set_busy(dev->pacer, 2, true);
+
 	return 0;
 }
 
diff --git a/drivers/staging/comedi/drivers/cb_pcimdda.c b/drivers/staging/comedi/drivers/cb_pcimdda.c
index 03043e7..a4781db 100644
--- a/drivers/staging/comedi/drivers/cb_pcimdda.c
+++ b/drivers/staging/comedi/drivers/cb_pcimdda.c
@@ -75,9 +75,8 @@ Configuration Options: not applicable, uses PCI auto config
  */
 
 #include <linux/module.h>
-#include <linux/pci.h>
 
-#include "../comedidev.h"
+#include "../comedi_pci.h"
 
 #include "8255.h"
 
@@ -134,7 +133,7 @@ static int cb_pcimdda_ao_insn_read(struct comedi_device *dev,
 }
 
 static int cb_pcimdda_auto_attach(struct comedi_device *dev,
-					    unsigned long context_unused)
+				  unsigned long context_unused)
 {
 	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
 	struct comedi_subdevice *s;
diff --git a/drivers/staging/comedi/drivers/comedi_8254.c b/drivers/staging/comedi/drivers/comedi_8254.c
new file mode 100644
index 0000000..0d5d56b
--- /dev/null
+++ b/drivers/staging/comedi/drivers/comedi_8254.c
@@ -0,0 +1,664 @@
+/*
+ * comedi_8254.c
+ * Generic 8254 timer/counter support
+ * Copyright (C) 2014 H Hartley Sweeten <hsweeten@visionengravers.com>
+ *
+ * Based on 8253.h and various subdevice implementations in comedi drivers.
+ *
+ * COMEDI - Linux Control and Measurement Device Interface
+ * Copyright (C) 2000 David A. Schleef <ds@schleef.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+/*
+ * Module: comedi_8254
+ * Description: Generic 8254 timer/counter support
+ * Author: H Hartley Sweeten <hsweeten@visionengravers.com>
+ * Updated: Thu Jan 8 16:45:45 MST 2015
+ * Status: works
+ *
+ * This module is not used directly by end-users. Rather, it is used by other
+ * drivers to provide support for an 8254 Programmable Interval Timer. These
+ * counters are typically used to generate the pacer clock used for data
+ * acquisition. Some drivers also expose the counters for general purpose use.
+ *
+ * This module provides the following basic functions:
+ *
+ * comedi_8254_init() / comedi_8254_mm_init()
+ *	Initializes this module to access the 8254 registers. The _mm version
+ *	sets up the module for MMIO register access the other for PIO access.
+ *	The pointer returned from these functions is normally stored in the
+ *	comedi_device dev->pacer and will be freed by the comedi core during
+ *	the driver (*detach). If a driver has multiple 8254 devices, they need
+ *	to be stored in the drivers private data and freed when the driver is
+ *	detached.
+ *
+ *	NOTE: The counters are reset by setting them to I8254_MODE0 as part of
+ *	this initialization.
+ *
+ * comedi_8254_set_mode()
+ *	Sets a counters operation mode:
+ *		I8254_MODE0	Interrupt on terminal count
+ *		I8254_MODE1	Hardware retriggerable one-shot
+ *		I8254_MODE2	Rate generator
+ *		I8254_MODE3	Square wave mode
+ *		I8254_MODE4	Software triggered strobe
+ *		I8254_MODE5	Hardware triggered strobe (retriggerable)
+ *
+ *	In addition I8254_BCD and I8254_BINARY specify the counting mode:
+ *		I8254_BCD	BCD counting
+ *		I8254_BINARY	Binary counting
+ *
+ * comedi_8254_write()
+ *	Writes an initial value to a counter.
+ *
+ *	The largest possible initial count is 0; this is equivalent to 2^16
+ *	for binary counting and 10^4 for BCD counting.
+ *
+ *	NOTE: The counter does not stop when it reaches zero. In Mode 0, 1, 4,
+ *	and 5 the counter "wraps around" to the highest count, either 0xffff
+ *	for binary counting or 9999 for BCD counting, and continues counting.
+ *	Modes 2 and 3 are periodic; the counter reloads itself with the initial
+ *	count and continues counting from there.
+ *
+ * comedi_8254_read()
+ *	Reads the current value from a counter.
+ *
+ * comedi_8254_status()
+ *	Reads the status of a counter.
+ *
+ * comedi_8254_load()
+ *	Sets a counters operation mode and writes the initial value.
+ *
+ * Typically the pacer clock is created by cascading two of the 16-bit counters
+ * to create a 32-bit rate generator (I8254_MODE2). These functions are
+ * provided to handle the cascaded counters:
+ *
+ * comedi_8254_ns_to_timer()
+ *	Calculates the divisor value needed for a single counter to generate
+ *	ns timing.
+ *
+ * comedi_8254_cascade_ns_to_timer()
+ *	Calculates the two divisor values needed to the generate the pacer
+ *	clock (in ns).
+ *
+ * comedi_8254_update_divisors()
+ *	Transfers the intermediate divisor values to the current divisors.
+ *
+ * comedi_8254_pacer_enable()
+ *	Programs the mode of the cascaded counters and writes the current
+ *	divisor values.
+ *
+ * To expose the counters as a subdevice for general purpose use the following
+ * functions a provided:
+ *
+ * comedi_8254_subdevice_init()
+ *	Initializes a comedi_subdevice to use the 8254 timer.
+ *
+ * comedi_8254_set_busy()
+ *	Internally flags a counter as "busy". This is done to protect the
+ *	counters that are used for the cascaded 32-bit pacer.
+ *
+ * The subdevice provides (*insn_read) and (*insn_write) operations to read
+ * the current value and write an initial value to a counter. A (*insn_config)
+ * operation is also provided to handle the following comedi instructions:
+ *
+ *	INSN_CONFIG_SET_COUNTER_MODE	calls comedi_8254_set_mode()
+ *	INSN_CONFIG_8254_READ_STATUS	calls comedi_8254_status()
+ *
+ * The (*insn_config) member of comedi_8254 can be initialized by the external
+ * driver to handle any additional instructions.
+ *
+ * NOTE: Gate control, clock routing, and any interrupt handling for the
+ * counters is not handled by this module. These features are driver dependent.
+ */
+
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/io.h>
+
+#include "../comedidev.h"
+
+#include "comedi_8254.h"
+
+static unsigned int __i8254_read(struct comedi_8254 *i8254, unsigned int reg)
+{
+	unsigned int reg_offset = (reg * i8254->iosize) << i8254->regshift;
+	unsigned int val;
+
+	switch (i8254->iosize) {
+	default:
+	case I8254_IO8:
+		if (i8254->mmio)
+			val = readb(i8254->mmio + reg_offset);
+		else
+			val = inb(i8254->iobase + reg_offset);
+		break;
+	case I8254_IO16:
+		if (i8254->mmio)
+			val = readw(i8254->mmio + reg_offset);
+		else
+			val = inw(i8254->iobase + reg_offset);
+		break;
+	case I8254_IO32:
+		if (i8254->mmio)
+			val = readl(i8254->mmio + reg_offset);
+		else
+			val = inl(i8254->iobase + reg_offset);
+		break;
+	}
+	return val & 0xff;
+}
+
+static void __i8254_write(struct comedi_8254 *i8254,
+			  unsigned int val, unsigned int reg)
+{
+	unsigned int reg_offset = (reg * i8254->iosize) << i8254->regshift;
+
+	switch (i8254->iosize) {
+	default:
+	case I8254_IO8:
+		if (i8254->mmio)
+			writeb(val, i8254->mmio + reg_offset);
+		else
+			outb(val, i8254->iobase + reg_offset);
+		break;
+	case I8254_IO16:
+		if (i8254->mmio)
+			writew(val, i8254->mmio + reg_offset);
+		else
+			outw(val, i8254->iobase + reg_offset);
+		break;
+	case I8254_IO32:
+		if (i8254->mmio)
+			writel(val, i8254->mmio + reg_offset);
+		else
+			outl(val, i8254->iobase + reg_offset);
+		break;
+	}
+}
+
+/**
+ * comedi_8254_status - return the status of a counter
+ * @i8254:	comedi_8254 struct for the timer
+ * @counter:	the counter number
+ */
+unsigned int comedi_8254_status(struct comedi_8254 *i8254, unsigned int counter)
+{
+	unsigned int cmd;
+
+	if (counter > 2)
+		return 0;
+
+	cmd = I8254_CTRL_READBACK_STATUS | I8254_CTRL_READBACK_SEL_CTR(counter);
+	__i8254_write(i8254, cmd, I8254_CTRL_REG);
+
+	return __i8254_read(i8254, counter);
+}
+EXPORT_SYMBOL_GPL(comedi_8254_status);
+
+/**
+ * comedi_8254_read - read the current counter value
+ * @i8254:	comedi_8254 struct for the timer
+ * @counter:	the counter number
+ */
+unsigned int comedi_8254_read(struct comedi_8254 *i8254, unsigned int counter)
+{
+	unsigned int val;
+
+	if (counter > 2)
+		return 0;
+
+	/* latch counter */
+	__i8254_write(i8254, I8254_CTRL_SEL_CTR(counter) | I8254_CTRL_LATCH,
+		      I8254_CTRL_REG);
+
+	/* read LSB then MSB */
+	val = __i8254_read(i8254, counter);
+	val |= (__i8254_read(i8254, counter) << 8);
+
+	return val;
+}
+EXPORT_SYMBOL_GPL(comedi_8254_read);
+
+/**
+ * comedi_8254_write - load a 16-bit initial counter value
+ * @i8254:	comedi_8254 struct for the timer
+ * @counter:	the counter number
+ * @val:	the initial value
+ */
+void comedi_8254_write(struct comedi_8254 *i8254,
+		       unsigned int counter, unsigned int val)
+{
+	unsigned int byte;
+
+	if (counter > 2)
+		return;
+	if (val > 0xffff)
+		return;
+
+	/* load LSB then MSB */
+	byte = val & 0xff;
+	__i8254_write(i8254, byte, counter);
+	byte = (val >> 8) & 0xff;
+	__i8254_write(i8254, byte, counter);
+}
+EXPORT_SYMBOL_GPL(comedi_8254_write);
+
+/**
+ * comedi_8254_set_mode - set the mode of a counter
+ * @i8254:	comedi_8254 struct for the timer
+ * @counter:	the counter number
+ * @mode:	the I8254_MODEx and I8254_BCD|I8254_BINARY
+ */
+int comedi_8254_set_mode(struct comedi_8254 *i8254, unsigned int counter,
+			 unsigned int mode)
+{
+	unsigned int byte;
+
+	if (counter > 2)
+		return -EINVAL;
+	if (mode > (I8254_MODE5 | I8254_BCD))
+		return -EINVAL;
+
+	byte = I8254_CTRL_SEL_CTR(counter) |	/* select counter */
+	       I8254_CTRL_LSB_MSB |		/* load LSB then MSB */
+	       mode;				/* mode and BCD|binary */
+	__i8254_write(i8254, byte, I8254_CTRL_REG);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(comedi_8254_set_mode);
+
+/**
+ * comedi_8254_load - program the mode and initial count of a counter
+ * @i8254:	comedi_8254 struct for the timer
+ * @counter:	the counter number
+ * @mode:	the I8254_MODEx and I8254_BCD|I8254_BINARY
+ * @val:	the initial value
+ */
+int comedi_8254_load(struct comedi_8254 *i8254, unsigned int counter,
+		     unsigned int val, unsigned int mode)
+{
+	if (counter > 2)
+		return -EINVAL;
+	if (val > 0xffff)
+		return -EINVAL;
+	if (mode > (I8254_MODE5 | I8254_BCD))
+		return -EINVAL;
+
+	comedi_8254_set_mode(i8254, counter, mode);
+	comedi_8254_write(i8254, counter, val);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(comedi_8254_load);
+
+/**
+ * comedi_8254_pacer_enable - set the mode and load the cascaded counters
+ * @i8254:	comedi_8254 struct for the timer
+ * @counter1:	the counter number for the first divisor
+ * @counter2:	the counter number for the second divisor
+ * @enable:	flag to enable (load) the counters
+ */
+void comedi_8254_pacer_enable(struct comedi_8254 *i8254,
+			      unsigned int counter1,
+			      unsigned int counter2,
+			      bool enable)
+{
+	unsigned int mode;
+
+	if (counter1 > 2 || counter2 > 2 || counter1 == counter2)
+		return;
+
+	if (enable)
+		mode = I8254_MODE2 | I8254_BINARY;
+	else
+		mode = I8254_MODE0 | I8254_BINARY;
+
+	comedi_8254_set_mode(i8254, counter1, mode);
+	comedi_8254_set_mode(i8254, counter2, mode);
+
+	if (enable) {
+		/*
+		 * Divisors are loaded second counter then first counter to
+		 * avoid possible issues with the first counter expiring
+		 * before the second counter is loaded.
+		 */
+		comedi_8254_write(i8254, counter2, i8254->divisor2);
+		comedi_8254_write(i8254, counter1, i8254->divisor1);
+	}
+}
+EXPORT_SYMBOL_GPL(comedi_8254_pacer_enable);
+
+/**
+ * comedi_8254_update_divisors - update the divisors for the cascaded counters
+ * @i8254:	comedi_8254 struct for the timer
+ */
+void comedi_8254_update_divisors(struct comedi_8254 *i8254)
+{
+	/* masking is done since counter maps zero to 0x10000 */
+	i8254->divisor = i8254->next_div & 0xffff;
+	i8254->divisor1 = i8254->next_div1 & 0xffff;
+	i8254->divisor2 = i8254->next_div2 & 0xffff;
+}
+EXPORT_SYMBOL_GPL(comedi_8254_update_divisors);
+
+/**
+ * comedi_8254_cascade_ns_to_timer - calculate the cascaded divisor values
+ * @i8254:	comedi_8254 struct for the timer
+ * @nanosec:	the desired ns time
+ * @flags:	comedi_cmd flags
+ */
+void comedi_8254_cascade_ns_to_timer(struct comedi_8254 *i8254,
+				     unsigned int *nanosec,
+				     unsigned int flags)
+{
+	unsigned int d1 = i8254->next_div1 ? i8254->next_div1 : I8254_MAX_COUNT;
+	unsigned int d2 = i8254->next_div2 ? i8254->next_div2 : I8254_MAX_COUNT;
+	unsigned int div = d1 * d2;
+	unsigned int ns_lub = 0xffffffff;
+	unsigned int ns_glb = 0;
+	unsigned int d1_lub = 0;
+	unsigned int d1_glb = 0;
+	unsigned int d2_lub = 0;
+	unsigned int d2_glb = 0;
+	unsigned int start;
+	unsigned int ns;
+	unsigned int ns_low;
+	unsigned int ns_high;
+
+	/* exit early if everything is already correct */
+	if (div * i8254->osc_base == *nanosec &&
+	    d1 > 1 && d1 <= I8254_MAX_COUNT &&
+	    d2 > 1 && d2 <= I8254_MAX_COUNT &&
+	    /* check for overflow */
+	    div > d1 && div > d2 &&
+	    div * i8254->osc_base > div &&
+	    div * i8254->osc_base > i8254->osc_base)
+		return;
+
+	div = *nanosec / i8254->osc_base;
+	d2 = I8254_MAX_COUNT;
+	start = div / d2;
+	if (start < 2)
+		start = 2;
+	for (d1 = start; d1 <= div / d1 + 1 && d1 <= I8254_MAX_COUNT; d1++) {
+		for (d2 = div / d1;
+		     d1 * d2 <= div + d1 + 1 && d2 <= I8254_MAX_COUNT; d2++) {
+			ns = i8254->osc_base * d1 * d2;
+			if (ns <= *nanosec && ns > ns_glb) {
+				ns_glb = ns;
+				d1_glb = d1;
+				d2_glb = d2;
+			}
+			if (ns >= *nanosec && ns < ns_lub) {
+				ns_lub = ns;
+				d1_lub = d1;
+				d2_lub = d2;
+			}
+		}
+	}
+
+	switch (flags & CMDF_ROUND_MASK) {
+	case CMDF_ROUND_NEAREST:
+	default:
+		ns_high = d1_lub * d2_lub * i8254->osc_base;
+		ns_low = d1_glb * d2_glb * i8254->osc_base;
+		if (ns_high - *nanosec < *nanosec - ns_low) {
+			d1 = d1_lub;
+			d2 = d2_lub;
+		} else {
+			d1 = d1_glb;
+			d2 = d2_glb;
+		}
+		break;
+	case CMDF_ROUND_UP:
+		d1 = d1_lub;
+		d2 = d2_lub;
+		break;
+	case CMDF_ROUND_DOWN:
+		d1 = d1_glb;
+		d2 = d2_glb;
+		break;
+	}
+
+	*nanosec = d1 * d2 * i8254->osc_base;
+	i8254->next_div1 = d1;
+	i8254->next_div2 = d2;
+}
+EXPORT_SYMBOL_GPL(comedi_8254_cascade_ns_to_timer);
+
+/**
+ * comedi_8254_ns_to_timer - calculate the divisor value for nanosec timing
+ * @i8254:	comedi_8254 struct for the timer
+ * @nanosec:	the desired ns time
+ * @flags:	comedi_cmd flags
+ */
+void comedi_8254_ns_to_timer(struct comedi_8254 *i8254,
+			     unsigned int *nanosec, unsigned int flags)
+{
+	unsigned int divisor;
+
+	switch (flags & CMDF_ROUND_MASK) {
+	default:
+	case CMDF_ROUND_NEAREST:
+		divisor = DIV_ROUND_CLOSEST(*nanosec, i8254->osc_base);
+		break;
+	case CMDF_ROUND_UP:
+		divisor = DIV_ROUND_UP(*nanosec, i8254->osc_base);
+		break;
+	case CMDF_ROUND_DOWN:
+		divisor = *nanosec / i8254->osc_base;
+		break;
+	}
+	if (divisor < 2)
+		divisor = 2;
+	if (divisor > I8254_MAX_COUNT)
+		divisor = I8254_MAX_COUNT;
+
+	*nanosec = divisor * i8254->osc_base;
+	i8254->next_div = divisor;
+}
+EXPORT_SYMBOL_GPL(comedi_8254_ns_to_timer);
+
+/**
+ * comedi_8254_set_busy - set/clear the "busy" flag for a given counter
+ * @i8254:	comedi_8254 struct for the timer
+ * @counter:	the counter number
+ * @busy:	set/clear flag
+ */
+void comedi_8254_set_busy(struct comedi_8254 *i8254,
+			  unsigned int counter, bool busy)
+{
+	if (counter < 3)
+		i8254->busy[counter] = busy;
+}
+EXPORT_SYMBOL_GPL(comedi_8254_set_busy);
+
+static int comedi_8254_insn_read(struct comedi_device *dev,
+				 struct comedi_subdevice *s,
+				 struct comedi_insn *insn,
+				 unsigned int *data)
+{
+	struct comedi_8254 *i8254 = s->private;
+	unsigned int chan = CR_CHAN(insn->chanspec);
+	int i;
+
+	if (i8254->busy[chan])
+		return -EBUSY;
+
+	for (i = 0; i < insn->n; i++)
+		data[i] = comedi_8254_read(i8254, chan);
+
+	return insn->n;
+}
+
+static int comedi_8254_insn_write(struct comedi_device *dev,
+				  struct comedi_subdevice *s,
+				  struct comedi_insn *insn,
+				  unsigned int *data)
+{
+	struct comedi_8254 *i8254 = s->private;
+	unsigned int chan = CR_CHAN(insn->chanspec);
+
+	if (i8254->busy[chan])
+		return -EBUSY;
+
+	if (insn->n)
+		comedi_8254_write(i8254, chan, data[insn->n - 1]);
+
+	return insn->n;
+}
+
+static int comedi_8254_insn_config(struct comedi_device *dev,
+				   struct comedi_subdevice *s,
+				   struct comedi_insn *insn,
+				   unsigned int *data)
+{
+	struct comedi_8254 *i8254 = s->private;
+	unsigned int chan = CR_CHAN(insn->chanspec);
+	int ret;
+
+	if (i8254->busy[chan])
+		return -EBUSY;
+
+	switch (data[0]) {
+	case INSN_CONFIG_RESET:
+		ret = comedi_8254_set_mode(i8254, chan,
+					   I8254_MODE0 | I8254_BINARY);
+		if (ret)
+			return ret;
+		break;
+	case INSN_CONFIG_SET_COUNTER_MODE:
+		ret = comedi_8254_set_mode(i8254, chan, data[1]);
+		if (ret)
+			return ret;
+		break;
+	case INSN_CONFIG_8254_READ_STATUS:
+		data[1] = comedi_8254_status(i8254, chan);
+		break;
+	default:
+		/*
+		 * If available, call the driver provided (*insn_config)
+		 * to handle any driver implemented instructions.
+		 */
+		if (i8254->insn_config)
+			return i8254->insn_config(dev, s, insn, data);
+
+		return -EINVAL;
+	}
+
+	return insn->n;
+}
+
+/**
+ * comedi_8254_subdevice_init - initialize a comedi_subdevice for the 8254 timer
+ * @s:		comedi_subdevice struct
+ */
+void comedi_8254_subdevice_init(struct comedi_subdevice *s,
+				struct comedi_8254 *i8254)
+{
+	s->type		= COMEDI_SUBD_COUNTER;
+	s->subdev_flags	= SDF_READABLE | SDF_WRITABLE;
+	s->n_chan	= 3;
+	s->maxdata	= 0xffff;
+	s->range_table	= &range_unknown;
+	s->insn_read	= comedi_8254_insn_read;
+	s->insn_write	= comedi_8254_insn_write;
+	s->insn_config	= comedi_8254_insn_config;
+
+	s->private	= i8254;
+}
+EXPORT_SYMBOL_GPL(comedi_8254_subdevice_init);
+
+static struct comedi_8254 *__i8254_init(unsigned long iobase,
+					void __iomem *mmio,
+					unsigned int osc_base,
+					unsigned int iosize,
+					unsigned int regshift)
+{
+	struct comedi_8254 *i8254;
+	int i;
+
+	/* sanity check that the iosize is valid */
+	if (!(iosize == I8254_IO8 || iosize == I8254_IO16 ||
+	      iosize == I8254_IO32))
+		return NULL;
+
+	i8254 = kzalloc(sizeof(*i8254), GFP_KERNEL);
+	if (!i8254)
+		return NULL;
+
+	i8254->iobase	= iobase;
+	i8254->mmio	= mmio;
+	i8254->iosize	= iosize;
+	i8254->regshift	= regshift;
+
+	/* default osc_base to the max speed of a generic 8254 timer */
+	i8254->osc_base	= osc_base ? osc_base : I8254_OSC_BASE_10MHZ;
+
+	/* reset all the counters by setting them to I8254_MODE0 */
+	for (i = 0; i < 3; i++)
+		comedi_8254_set_mode(i8254, i, I8254_MODE0 | I8254_BINARY);
+
+	return i8254;
+}
+
+/**
+ * comedi_8254_init - allocate and initialize the 8254 device for pio access
+ * @mmio:	port I/O base address
+ * @osc_base:	base time of the counter in ns
+ *		OPTIONAL - only used by comedi_8254_cascade_ns_to_timer()
+ * @iosize:	I/O register size
+ * @regshift:	register gap shift
+ */
+struct comedi_8254 *comedi_8254_init(unsigned long iobase,
+				     unsigned int osc_base,
+				     unsigned int iosize,
+				     unsigned int regshift)
+{
+	return __i8254_init(iobase, NULL, osc_base, iosize, regshift);
+}
+EXPORT_SYMBOL_GPL(comedi_8254_init);
+
+/**
+ * comedi_8254_mm_init - allocate and initialize the 8254 device for mmio access
+ * @mmio:	memory mapped I/O base address
+ * @osc_base:	base time of the counter in ns
+ *		OPTIONAL - only used by comedi_8254_cascade_ns_to_timer()
+ * @iosize:	I/O register size
+ * @regshift:	register gap shift
+ */
+struct comedi_8254 *comedi_8254_mm_init(void __iomem *mmio,
+					unsigned int osc_base,
+					unsigned int iosize,
+					unsigned int regshift)
+{
+	return __i8254_init(0, mmio, osc_base, iosize, regshift);
+}
+EXPORT_SYMBOL_GPL(comedi_8254_mm_init);
+
+static int __init comedi_8254_module_init(void)
+{
+	return 0;
+}
+module_init(comedi_8254_module_init);
+
+static void __exit comedi_8254_module_exit(void)
+{
+}
+module_exit(comedi_8254_module_exit);
+
+MODULE_AUTHOR("H Hartley Sweeten <hsweeten@visionengravers.com>");
+MODULE_DESCRIPTION("Comedi: Generic 8254 timer/counter support");
+MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/comedi_8254.h b/drivers/staging/comedi/drivers/comedi_8254.h
new file mode 100644
index 0000000..d89f6d9
--- /dev/null
+++ b/drivers/staging/comedi/drivers/comedi_8254.h
@@ -0,0 +1,133 @@
+/*
+ * comedi_8254.h
+ * Generic 8254 timer/counter support
+ * Copyright (C) 2014 H Hartley Sweeten <hsweeten@visionengravers.com>
+ *
+ * COMEDI - Linux Control and Measurement Device Interface
+ * Copyright (C) 2000 David A. Schleef <ds@schleef.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef _COMEDI_8254_H
+#define _COMEDI_8254_H
+
+/*
+ * Common oscillator base values in nanoseconds
+ */
+#define I8254_OSC_BASE_10MHZ	100
+#define I8254_OSC_BASE_5MHZ	200
+#define I8254_OSC_BASE_4MHZ	250
+#define I8254_OSC_BASE_2MHZ	500
+#define I8254_OSC_BASE_1MHZ	1000
+#define I8254_OSC_BASE_100KHZ	10000
+#define I8254_OSC_BASE_10KHZ	100000
+#define I8254_OSC_BASE_1KHZ	1000000
+
+/*
+ * I/O access size used to read/write registers
+ */
+#define I8254_IO8		1
+#define I8254_IO16		2
+#define I8254_IO32		4
+
+/*
+ * Register map for generic 8254 timer (I8254_IO8 with 0 regshift)
+ */
+#define I8254_COUNTER0_REG		0x00
+#define I8254_COUNTER1_REG		0x01
+#define I8254_COUNTER2_REG		0x02
+#define I8254_CTRL_REG			0x03
+#define I8254_CTRL_SEL_CTR(x)		((x) << 6)
+#define I8254_CTRL_READBACK_COUNT	((3 << 6) | (1 << 4))
+#define I8254_CTRL_READBACK_STATUS	((3 << 6) | (1 << 5))
+#define I8254_CTRL_READBACK_SEL_CTR(x)	(2 << (x))
+#define I8254_CTRL_LATCH		(0 << 4)
+#define I8254_CTRL_LSB_ONLY		(1 << 4)
+#define I8254_CTRL_MSB_ONLY		(2 << 4)
+#define I8254_CTRL_LSB_MSB		(3 << 4)
+
+/* counter maps zero to 0x10000 */
+#define I8254_MAX_COUNT			0x10000
+
+/**
+ * struct comedi_8254 - private data used by this module
+ * @iobase:		PIO base address of the registers (in/out)
+ * @mmio:		MMIO base address of the registers (read/write)
+ * @iosize:		I/O size used to access the registers (b/w/l)
+ * @regshift:		register gap shift
+ * @osc_base:		cascaded oscillator speed in ns
+ * @divisor:		divisor for single counter
+ * @divisor1:		divisor loaded into first cascaded counter
+ * @divisor2:		divisor loaded into second cascaded counter
+ * #next_div:		next divisor for single counter
+ * @next_div1:		next divisor to use for first cascaded counter
+ * @next_div2:		next divisor to use for second cascaded counter
+ * @clock_src;		current clock source for each counter (driver specific)
+ * @gate_src;		current gate source  for each counter (driver specific)
+ * @busy:		flags used to indicate that a counter is "busy"
+ * @insn_config:	driver specific (*insn_config) callback
+ */
+struct comedi_8254 {
+	unsigned long iobase;
+	void __iomem *mmio;
+	unsigned int iosize;
+	unsigned int regshift;
+	unsigned int osc_base;
+	unsigned int divisor;
+	unsigned int divisor1;
+	unsigned int divisor2;
+	unsigned int next_div;
+	unsigned int next_div1;
+	unsigned int next_div2;
+	unsigned int clock_src[3];
+	unsigned int gate_src[3];
+	bool busy[3];
+
+	int (*insn_config)(struct comedi_device *, struct comedi_subdevice *s,
+			   struct comedi_insn *, unsigned int *data);
+};
+
+unsigned int comedi_8254_status(struct comedi_8254 *, unsigned int counter);
+unsigned int comedi_8254_read(struct comedi_8254 *, unsigned int counter);
+void comedi_8254_write(struct comedi_8254 *,
+		       unsigned int counter, unsigned int val);
+
+int comedi_8254_set_mode(struct comedi_8254 *,
+			 unsigned int counter, unsigned int mode);
+int comedi_8254_load(struct comedi_8254 *,
+		     unsigned int counter, unsigned int val, unsigned int mode);
+
+void comedi_8254_pacer_enable(struct comedi_8254 *,
+			      unsigned int counter1, unsigned int counter2,
+			      bool enable);
+void comedi_8254_update_divisors(struct comedi_8254 *);
+void comedi_8254_cascade_ns_to_timer(struct comedi_8254 *,
+				     unsigned int *nanosec, unsigned int flags);
+void comedi_8254_ns_to_timer(struct comedi_8254 *,
+			     unsigned int *nanosec, unsigned int flags);
+
+void comedi_8254_set_busy(struct comedi_8254 *,
+			  unsigned int counter, bool busy);
+
+void comedi_8254_subdevice_init(struct comedi_subdevice *,
+				struct comedi_8254 *);
+
+struct comedi_8254 *comedi_8254_init(unsigned long iobase,
+				     unsigned int osc_base,
+				     unsigned int iosize,
+				     unsigned int regshift);
+struct comedi_8254 *comedi_8254_mm_init(void __iomem *mmio,
+					unsigned int osc_base,
+					unsigned int iosize,
+					unsigned int regshift);
+
+#endif	/* _COMEDI_8254_H */
diff --git a/drivers/staging/comedi/drivers/comedi_bond.c b/drivers/staging/comedi/drivers/comedi_bond.c
index 221d381..96db0c2 100644
--- a/drivers/staging/comedi/drivers/comedi_bond.c
+++ b/drivers/staging/comedi/drivers/comedi_bond.c
@@ -267,7 +267,6 @@ static int do_dev_config(struct comedi_device *dev, struct comedi_devconfig *it)
 				strlcat(devpriv->name, buf,
 					sizeof(devpriv->name));
 			}
-
 		}
 	}
 
@@ -313,9 +312,9 @@ static int bonding_attach(struct comedi_device *dev,
 	s->insn_config = bonding_dio_insn_config;
 
 	dev_info(dev->class_dev,
-		"%s: %s attached, %u channels from %u devices\n",
-		dev->driver->driver_name, dev->board_name,
-		devpriv->nchans, devpriv->ndevs);
+		 "%s: %s attached, %u channels from %u devices\n",
+		 dev->driver->driver_name, dev->board_name,
+		 devpriv->nchans, devpriv->ndevs);
 
 	return 0;
 }
diff --git a/drivers/staging/comedi/drivers/comedi_fc.h b/drivers/staging/comedi/drivers/comedi_fc.h
deleted file mode 100644
index 756be93..0000000
--- a/drivers/staging/comedi/drivers/comedi_fc.h
+++ /dev/null
@@ -1,102 +0,0 @@
-/*
- * comedi_fc.h
- * This is a place for code driver writers wish to share between
- * two or more drivers. These functions are meant to be used only
- * by drivers, they are NOT part of the kcomedilib API!
- *
- * Author: Frank Mori Hess <fmhess@users.sourceforge.net>
- * Copyright (C) 2002 Frank Mori Hess
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-#ifndef _COMEDI_FC_H
-#define _COMEDI_FC_H
-
-#include "../comedidev.h"
-
-/**
- * cfc_check_trigger_src() - trivially validate a comedi_cmd trigger source
- * @src: pointer to the trigger source to validate
- * @flags: bitmask of valid TRIG_* for the trigger
- *
- * This is used in "step 1" of the do_cmdtest functions of comedi drivers
- * to vaildate the comedi_cmd triggers. The mask of the @src against the
- * @flags allows the userspace comedilib to pass all the comedi_cmd
- * triggers as TRIG_ANY and get back a bitmask of the valid trigger sources.
- */
-static inline int cfc_check_trigger_src(unsigned int *src, unsigned int flags)
-{
-	unsigned int orig_src = *src;
-
-	*src = orig_src & flags;
-	if (*src == TRIG_INVALID || *src != orig_src)
-		return -EINVAL;
-	return 0;
-}
-
-/**
- * cfc_check_trigger_is_unique() - make sure a trigger source is unique
- * @src: the trigger source to check
- */
-static inline int cfc_check_trigger_is_unique(unsigned int src)
-{
-	/* this test is true if more than one _src bit is set */
-	if ((src & (src - 1)) != 0)
-		return -EINVAL;
-	return 0;
-}
-
-/**
- * cfc_check_trigger_arg_is() - trivially validate a trigger argument
- * @arg: pointer to the trigger arg to validate
- * @val: the value the argument should be
- */
-static inline int cfc_check_trigger_arg_is(unsigned int *arg, unsigned int val)
-{
-	if (*arg != val) {
-		*arg = val;
-		return -EINVAL;
-	}
-	return 0;
-}
-
-/**
- * cfc_check_trigger_arg_min() - trivially validate a trigger argument
- * @arg: pointer to the trigger arg to validate
- * @val: the minimum value the argument should be
- */
-static inline int cfc_check_trigger_arg_min(unsigned int *arg,
-					    unsigned int val)
-{
-	if (*arg < val) {
-		*arg = val;
-		return -EINVAL;
-	}
-	return 0;
-}
-
-/**
- * cfc_check_trigger_arg_max() - trivially validate a trigger argument
- * @arg: pointer to the trigger arg to validate
- * @val: the maximum value the argument should be
- */
-static inline int cfc_check_trigger_arg_max(unsigned int *arg,
-					    unsigned int val)
-{
-	if (*arg > val) {
-		*arg = val;
-		return -EINVAL;
-	}
-	return 0;
-}
-
-#endif /* _COMEDI_FC_H */
diff --git a/drivers/staging/comedi/drivers/comedi_isadma.c b/drivers/staging/comedi/drivers/comedi_isadma.c
index dbdea71..6ba71d1 100644
--- a/drivers/staging/comedi/drivers/comedi_isadma.c
+++ b/drivers/staging/comedi/drivers/comedi_isadma.c
@@ -91,9 +91,10 @@ unsigned int comedi_isadma_disable_on_sample(unsigned int dma_chan,
 			stalled++;
 			if (stalled > 10)
 				break;
+		} else {
+			residue = new_residue;
+			stalled = 0;
 		}
-		residue = new_residue;
-		stalled = 0;
 	}
 	return residue;
 }
@@ -234,7 +235,8 @@ void comedi_isadma_free(struct comedi_isadma *dma)
 			desc = &dma->desc[i];
 			if (desc->virt_addr)
 				dma_free_coherent(NULL, desc->maxsize,
-						desc->virt_addr, desc->hw_addr);
+						  desc->virt_addr,
+						  desc->hw_addr);
 		}
 		kfree(dma->desc);
 	}
diff --git a/drivers/staging/comedi/drivers/comedi_parport.c b/drivers/staging/comedi/drivers/comedi_parport.c
index ceef693..15a4093 100644
--- a/drivers/staging/comedi/drivers/comedi_parport.c
+++ b/drivers/staging/comedi/drivers/comedi_parport.c
@@ -69,8 +69,6 @@
 
 #include "../comedidev.h"
 
-#include "comedi_fc.h"
-
 /*
  * Register map
  */
@@ -161,11 +159,11 @@ static int parport_intr_cmdtest(struct comedi_device *dev,
 
 	/* Step 1 : check if triggers are trivially valid */
 
-	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW);
-	err |= cfc_check_trigger_src(&cmd->scan_begin_src, TRIG_EXT);
-	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_FOLLOW);
-	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_NONE);
+	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW);
+	err |= comedi_check_trigger_src(&cmd->scan_begin_src, TRIG_EXT);
+	err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_FOLLOW);
+	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_NONE);
 
 	if (err)
 		return 1;
@@ -175,11 +173,12 @@ static int parport_intr_cmdtest(struct comedi_device *dev,
 
 	/* Step 3: check if arguments are trivially valid */
 
-	err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0);
-	err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
-	err |= cfc_check_trigger_arg_is(&cmd->convert_arg, 0);
-	err |= cfc_check_trigger_arg_is(&cmd->scan_end_arg, cmd->chanlist_len);
-	err |= cfc_check_trigger_arg_is(&cmd->stop_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->convert_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
+					   cmd->chanlist_len);
+	err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
 
 	if (err)
 		return 3;
diff --git a/drivers/staging/comedi/drivers/comedi_test.c b/drivers/staging/comedi/drivers/comedi_test.c
index e56525a..80d613c 100644
--- a/drivers/staging/comedi/drivers/comedi_test.c
+++ b/drivers/staging/comedi/drivers/comedi_test.c
@@ -50,7 +50,6 @@ zero volts).
 
 #include <asm/div64.h>
 
-#include "comedi_fc.h"
 #include <linux/timer.h>
 #include <linux/ktime.h>
 
@@ -225,19 +224,20 @@ static int waveform_ai_cmdtest(struct comedi_device *dev,
 
 	/* Step 1 : check if triggers are trivially valid */
 
-	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW);
-	err |= cfc_check_trigger_src(&cmd->scan_begin_src, TRIG_TIMER);
-	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_NOW | TRIG_TIMER);
-	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
+	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW);
+	err |= comedi_check_trigger_src(&cmd->scan_begin_src, TRIG_TIMER);
+	err |= comedi_check_trigger_src(&cmd->convert_src,
+					TRIG_NOW | TRIG_TIMER);
+	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
 	/* Step 2a : make sure trigger sources are unique */
 
-	err |= cfc_check_trigger_is_unique(cmd->convert_src);
-	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+	err |= comedi_check_trigger_is_unique(cmd->convert_src);
+	err |= comedi_check_trigger_is_unique(cmd->stop_src);
 
 	/* Step 2b : and mutually compatible */
 
@@ -246,26 +246,30 @@ static int waveform_ai_cmdtest(struct comedi_device *dev,
 
 	/* Step 3: check if arguments are trivially valid */
 
-	err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
 
 	if (cmd->convert_src == TRIG_NOW)
-		err |= cfc_check_trigger_arg_is(&cmd->convert_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->convert_arg, 0);
 
 	if (cmd->scan_begin_src == TRIG_TIMER) {
-		err |= cfc_check_trigger_arg_min(&cmd->scan_begin_arg,
-						 nano_per_micro);
-		if (cmd->convert_src == TRIG_TIMER)
-			err |= cfc_check_trigger_arg_min(&cmd->scan_begin_arg,
-					cmd->convert_arg * cmd->chanlist_len);
+		err |= comedi_check_trigger_arg_min(&cmd->scan_begin_arg,
+						    nano_per_micro);
+		if (cmd->convert_src == TRIG_TIMER) {
+			err |= comedi_check_trigger_arg_min(&cmd->
+							    scan_begin_arg,
+							    cmd->convert_arg *
+							    cmd->chanlist_len);
+		}
 	}
 
-	err |= cfc_check_trigger_arg_min(&cmd->chanlist_len, 1);
-	err |= cfc_check_trigger_arg_is(&cmd->scan_end_arg, cmd->chanlist_len);
+	err |= comedi_check_trigger_arg_min(&cmd->chanlist_len, 1);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
+					   cmd->chanlist_len);
 
 	if (cmd->stop_src == TRIG_COUNT)
-		err |= cfc_check_trigger_arg_min(&cmd->stop_arg, 1);
+		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
 	else	/* TRIG_NONE */
-		err |= cfc_check_trigger_arg_is(&cmd->stop_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
 
 	if (err)
 		return 3;
@@ -277,14 +281,14 @@ static int waveform_ai_cmdtest(struct comedi_device *dev,
 		/* round to nearest microsec */
 		arg = nano_per_micro *
 		      ((arg + (nano_per_micro / 2)) / nano_per_micro);
-		err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, arg);
+		err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, arg);
 	}
 	if (cmd->convert_src == TRIG_TIMER) {
 		arg = cmd->convert_arg;
 		/* round to nearest microsec */
 		arg = nano_per_micro *
 		      ((arg + (nano_per_micro / 2)) / nano_per_micro);
-		err |= cfc_check_trigger_arg_is(&cmd->convert_arg, arg);
+		err |= comedi_check_trigger_arg_is(&cmd->convert_arg, arg);
 	}
 
 	if (err)
@@ -420,9 +424,8 @@ static int waveform_attach(struct comedi_device *dev,
 	for (i = 0; i < s->n_chan; i++)
 		devpriv->ao_loopbacks[i] = s->maxdata / 2;
 
-	init_timer(&devpriv->timer);
-	devpriv->timer.function = waveform_ai_interrupt;
-	devpriv->timer.data = (unsigned long)dev;
+	setup_timer(&devpriv->timer, waveform_ai_interrupt,
+		    (unsigned long)dev);
 
 	dev_info(dev->class_dev,
 		 "%s: %i microvolt, %li microsecond waveform attached\n",
diff --git a/drivers/staging/comedi/drivers/contec_pci_dio.c b/drivers/staging/comedi/drivers/contec_pci_dio.c
index 205f9df..4956a49 100644
--- a/drivers/staging/comedi/drivers/contec_pci_dio.c
+++ b/drivers/staging/comedi/drivers/contec_pci_dio.c
@@ -26,9 +26,8 @@ Configuration Options: not applicable, uses comedi PCI auto config
 */
 
 #include <linux/module.h>
-#include <linux/pci.h>
 
-#include "../comedidev.h"
+#include "../comedi_pci.h"
 
 /*
  * Register map
@@ -59,7 +58,7 @@ static int contec_di_insn_bits(struct comedi_device *dev,
 }
 
 static int contec_auto_attach(struct comedi_device *dev,
-					unsigned long context_unused)
+			      unsigned long context_unused)
 {
 	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
 	struct comedi_subdevice *s;
diff --git a/drivers/staging/comedi/drivers/daqboard2000.c b/drivers/staging/comedi/drivers/daqboard2000.c
index 96697fb..f97d18d 100644
--- a/drivers/staging/comedi/drivers/daqboard2000.c
+++ b/drivers/staging/comedi/drivers/daqboard2000.c
@@ -103,11 +103,10 @@ Configuration options: not applicable, uses PCI auto config
  */
 
 #include <linux/module.h>
-#include <linux/pci.h>
 #include <linux/delay.h>
 #include <linux/interrupt.h>
 
-#include "../comedidev.h"
+#include "../comedi_pci.h"
 
 #include "8255.h"
 
@@ -649,7 +648,7 @@ static const void *daqboard2000_find_boardinfo(struct comedi_device *dev,
 }
 
 static int daqboard2000_auto_attach(struct comedi_device *dev,
-					      unsigned long context_unused)
+				    unsigned long context_unused)
 {
 	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
 	const struct daq200_boardtype *board;
diff --git a/drivers/staging/comedi/drivers/das08.c b/drivers/staging/comedi/drivers/das08.c
index c78c0df..73f4c8d 100644
--- a/drivers/staging/comedi/drivers/das08.c
+++ b/drivers/staging/comedi/drivers/das08.c
@@ -23,7 +23,7 @@
 #include "../comedidev.h"
 
 #include "8255.h"
-#include "8253.h"
+#include "comedi_8254.h"
 #include "das08.h"
 
 /*
@@ -359,62 +359,6 @@ static int das08_ao_insn_write(struct comedi_device *dev,
 	return insn->n;
 }
 
-static void i8254_initialize(struct comedi_device *dev)
-{
-	const struct das08_board_struct *thisboard = dev->board_ptr;
-	unsigned long i8254_iobase = dev->iobase + thisboard->i8254_offset;
-	unsigned int mode = I8254_MODE0 | I8254_BINARY;
-	int i;
-
-	for (i = 0; i < 3; ++i)
-		i8254_set_mode(i8254_iobase, 0, i, mode);
-}
-
-static int das08_counter_read(struct comedi_device *dev,
-			      struct comedi_subdevice *s,
-			      struct comedi_insn *insn, unsigned int *data)
-{
-	const struct das08_board_struct *thisboard = dev->board_ptr;
-	unsigned long i8254_iobase = dev->iobase + thisboard->i8254_offset;
-	int chan = insn->chanspec;
-
-	data[0] = i8254_read(i8254_iobase, 0, chan);
-	return 1;
-}
-
-static int das08_counter_write(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn, unsigned int *data)
-{
-	const struct das08_board_struct *thisboard = dev->board_ptr;
-	unsigned long i8254_iobase = dev->iobase + thisboard->i8254_offset;
-	int chan = insn->chanspec;
-
-	i8254_write(i8254_iobase, 0, chan, data[0]);
-	return 1;
-}
-
-static int das08_counter_config(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn, unsigned int *data)
-{
-	const struct das08_board_struct *thisboard = dev->board_ptr;
-	unsigned long i8254_iobase = dev->iobase + thisboard->i8254_offset;
-	int chan = insn->chanspec;
-
-	switch (data[0]) {
-	case INSN_CONFIG_SET_COUNTER_MODE:
-		i8254_set_mode(i8254_iobase, 0, chan, data[1]);
-		break;
-	case INSN_CONFIG_8254_READ_STATUS:
-		data[1] = i8254_status(i8254_iobase, 0, chan);
-		break;
-	default:
-		return -EINVAL;
-	}
-	return 2;
-}
-
 int das08_common_attach(struct comedi_device *dev, unsigned long iobase)
 {
 	const struct das08_board_struct *thisboard = dev->board_ptr;
@@ -464,7 +408,7 @@ int das08_common_attach(struct comedi_device *dev, unsigned long iobase)
 		if (ret)
 			return ret;
 
-		/* intialize all channels to 0V */
+		/* initialize all channels to 0V */
 		for (i = 0; i < s->n_chan; i++) {
 			s->readback[i] = s->maxdata / 2;
 			das08_ao_set_data(dev, i, s->readback[i]);
@@ -511,17 +455,16 @@ int das08_common_attach(struct comedi_device *dev, unsigned long iobase)
 		s->type = COMEDI_SUBD_UNUSED;
 	}
 
+	/* Counter subdevice (8254) */
 	s = &dev->subdevices[5];
-	/* 8254 */
-	if (thisboard->i8254_offset != 0) {
-		s->type = COMEDI_SUBD_COUNTER;
-		s->subdev_flags = SDF_WRITABLE | SDF_READABLE;
-		s->n_chan = 3;
-		s->maxdata = 0xFFFF;
-		s->insn_read = das08_counter_read;
-		s->insn_write = das08_counter_write;
-		s->insn_config = das08_counter_config;
-		i8254_initialize(dev);
+	if (thisboard->i8254_offset) {
+		dev->pacer = comedi_8254_init(dev->iobase +
+					      thisboard->i8254_offset,
+					      0, I8254_IO8, 0);
+		if (!dev->pacer)
+			return -ENOMEM;
+
+		comedi_8254_subdevice_init(s, dev->pacer);
 	} else {
 		s->type = COMEDI_SUBD_UNUSED;
 	}
diff --git a/drivers/staging/comedi/drivers/das08_pci.c b/drivers/staging/comedi/drivers/das08_pci.c
index b2ea10b..d8d27fa 100644
--- a/drivers/staging/comedi/drivers/das08_pci.c
+++ b/drivers/staging/comedi/drivers/das08_pci.c
@@ -32,9 +32,8 @@
  */
 
 #include <linux/module.h>
-#include <linux/pci.h>
 
-#include "../comedidev.h"
+#include "../comedi_pci.h"
 
 #include "das08.h"
 
diff --git a/drivers/staging/comedi/drivers/das16.c b/drivers/staging/comedi/drivers/das16.c
index 2c20311..d7cf4b1 100644
--- a/drivers/staging/comedi/drivers/das16.c
+++ b/drivers/staging/comedi/drivers/das16.c
@@ -76,8 +76,7 @@
 #include "../comedidev.h"
 
 #include "comedi_isadma.h"
-#include "comedi_fc.h"
-#include "8253.h"
+#include "comedi_8254.h"
 #include "8255.h"
 
 #define DAS16_DMA_SIZE 0xff00	/*  size in bytes of allocated dma buffer */
@@ -599,29 +598,29 @@ static int das16_cmd_test(struct comedi_device *dev, struct comedi_subdevice *s,
 
 	/* Step 1 : check if triggers are trivially valid */
 
-	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW);
+	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW);
 
 	trig_mask = TRIG_FOLLOW;
 	if (devpriv->can_burst)
 		trig_mask |= TRIG_TIMER | TRIG_EXT;
-	err |= cfc_check_trigger_src(&cmd->scan_begin_src, trig_mask);
+	err |= comedi_check_trigger_src(&cmd->scan_begin_src, trig_mask);
 
 	trig_mask = TRIG_TIMER | TRIG_EXT;
 	if (devpriv->can_burst)
 		trig_mask |= TRIG_NOW;
-	err |= cfc_check_trigger_src(&cmd->convert_src, trig_mask);
+	err |= comedi_check_trigger_src(&cmd->convert_src, trig_mask);
 
-	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
+	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
 	/* Step 2a : make sure trigger sources are unique */
 
-	err |= cfc_check_trigger_is_unique(cmd->scan_begin_src);
-	err |= cfc_check_trigger_is_unique(cmd->convert_src);
-	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+	err |= comedi_check_trigger_is_unique(cmd->scan_begin_src);
+	err |= comedi_check_trigger_is_unique(cmd->convert_src);
+	err |= comedi_check_trigger_is_unique(cmd->stop_src);
 
 	/* Step 2b : and mutually compatible */
 
@@ -636,26 +635,30 @@ static int das16_cmd_test(struct comedi_device *dev, struct comedi_subdevice *s,
 
 	/* Step 3: check if arguments are trivially valid */
 
-	err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
 
 	if (cmd->scan_begin_src == TRIG_FOLLOW)	/* internal trigger */
-		err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
 
-	err |= cfc_check_trigger_arg_is(&cmd->scan_end_arg, cmd->chanlist_len);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
+					   cmd->chanlist_len);
 
 	/* check against maximum frequency */
-	if (cmd->scan_begin_src == TRIG_TIMER)
-		err |= cfc_check_trigger_arg_min(&cmd->scan_begin_arg,
-					board->ai_speed * cmd->chanlist_len);
+	if (cmd->scan_begin_src == TRIG_TIMER) {
+		err |= comedi_check_trigger_arg_min(&cmd->scan_begin_arg,
+						    board->ai_speed *
+						    cmd->chanlist_len);
+	}
 
-	if (cmd->convert_src == TRIG_TIMER)
-		err |= cfc_check_trigger_arg_min(&cmd->convert_arg,
-						 board->ai_speed);
+	if (cmd->convert_src == TRIG_TIMER) {
+		err |= comedi_check_trigger_arg_min(&cmd->convert_arg,
+						    board->ai_speed);
+	}
 
 	if (cmd->stop_src == TRIG_COUNT)
-		err |= cfc_check_trigger_arg_min(&cmd->stop_arg, 1);
+		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
 	else	/* TRIG_NONE */
-		err |= cfc_check_trigger_arg_is(&cmd->stop_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
 
 	if (err)
 		return 3;
@@ -663,19 +666,13 @@ static int das16_cmd_test(struct comedi_device *dev, struct comedi_subdevice *s,
 	/*  step 4: fix up arguments */
 	if (cmd->scan_begin_src == TRIG_TIMER) {
 		arg = cmd->scan_begin_arg;
-		i8253_cascade_ns_to_timer(devpriv->clockbase,
-					  &devpriv->divisor1,
-					  &devpriv->divisor2,
-					  &arg, cmd->flags);
-		err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, arg);
+		comedi_8254_cascade_ns_to_timer(dev->pacer, &arg, cmd->flags);
+		err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, arg);
 	}
 	if (cmd->convert_src == TRIG_TIMER) {
 		arg = cmd->convert_arg;
-		i8253_cascade_ns_to_timer(devpriv->clockbase,
-					  &devpriv->divisor1,
-					  &devpriv->divisor2,
-					  &arg, cmd->flags);
-		err |= cfc_check_trigger_arg_is(&cmd->convert_arg, arg);
+		comedi_8254_cascade_ns_to_timer(dev->pacer, &arg, cmd->flags);
+		err |= comedi_check_trigger_arg_is(&cmd->convert_arg, arg);
 	}
 	if (err)
 		return 4;
@@ -693,17 +690,9 @@ static int das16_cmd_test(struct comedi_device *dev, struct comedi_subdevice *s,
 static unsigned int das16_set_pacer(struct comedi_device *dev, unsigned int ns,
 				    unsigned int flags)
 {
-	struct das16_private_struct *devpriv = dev->private;
-	unsigned long timer_base = dev->iobase + DAS16_TIMER_BASE_REG;
-
-	i8253_cascade_ns_to_timer(devpriv->clockbase,
-				  &devpriv->divisor1, &devpriv->divisor2,
-				  &ns, flags);
-
-	i8254_set_mode(timer_base, 0, 1, I8254_MODE2 | I8254_BINARY);
-	i8254_set_mode(timer_base, 0, 2, I8254_MODE2 | I8254_BINARY);
-	i8254_write(timer_base, 0, 1, devpriv->divisor1);
-	i8254_write(timer_base, 0, 2, devpriv->divisor2);
+	comedi_8254_cascade_ns_to_timer(dev->pacer, &ns, flags);
+	comedi_8254_update_divisors(dev->pacer);
+	comedi_8254_pacer_enable(dev->pacer, 1, 2, true);
 
 	return ns;
 }
@@ -722,7 +711,7 @@ static int das16_cmd_exec(struct comedi_device *dev, struct comedi_subdevice *s)
 
 	if (cmd->flags & CMDF_PRIORITY) {
 		dev_err(dev->class_dev,
-			 "isa dma transfers cannot be performed with CMDF_PRIORITY, aborting\n");
+			"isa dma transfers cannot be performed with CMDF_PRIORITY, aborting\n");
 		return -1;
 	}
 
@@ -935,7 +924,6 @@ static void das16_reset(struct comedi_device *dev)
 	outb(0, dev->iobase + DAS16_STATUS_REG);
 	outb(0, dev->iobase + DAS16_CTRL_REG);
 	outb(0, dev->iobase + DAS16_PACER_REG);
-	outb(0, dev->iobase + DAS16_TIMER_BASE_REG + i8254_control_reg);
 }
 
 static void das16_alloc_dma(struct comedi_device *dev, unsigned int dma_chan)
@@ -950,9 +938,8 @@ static void das16_alloc_dma(struct comedi_device *dev, unsigned int dma_chan)
 	devpriv->dma = comedi_isadma_alloc(dev, 2, dma_chan, dma_chan,
 					   DAS16_DMA_SIZE, COMEDI_ISADMA_READ);
 	if (devpriv->dma) {
-		init_timer(&devpriv->timer);
-		devpriv->timer.function = das16_timer_interrupt;
-		devpriv->timer.data = (unsigned long)dev;
+		setup_timer(&devpriv->timer, das16_timer_interrupt,
+			    (unsigned long)dev);
 	}
 }
 
@@ -1039,6 +1026,7 @@ static int das16_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	const struct das16_board *board = dev->board_ptr;
 	struct das16_private_struct *devpriv;
 	struct comedi_subdevice *s;
+	unsigned int osc_base;
 	unsigned int status;
 	int ret;
 
@@ -1078,21 +1066,21 @@ static int das16_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		return -EINVAL;
 
 	/*  get master clock speed */
+	osc_base = I8254_OSC_BASE_1MHZ;
 	if (devpriv->can_burst) {
 		status = inb(dev->iobase + DAS1600_STATUS_REG);
-
 		if (status & DAS1600_STATUS_CLK_10MHZ)
-			devpriv->clockbase = I8254_OSC_BASE_10MHZ;
-		else
-			devpriv->clockbase = I8254_OSC_BASE_1MHZ;
+			osc_base = I8254_OSC_BASE_10MHZ;
 	} else {
 		if (it->options[3])
-			devpriv->clockbase = I8254_OSC_BASE_1MHZ /
-					     it->options[3];
-		else
-			devpriv->clockbase = I8254_OSC_BASE_1MHZ;
+			osc_base = I8254_OSC_BASE_1MHZ / it->options[3];
 	}
 
+	dev->pacer = comedi_8254_init(dev->iobase + DAS16_TIMER_BASE_REG,
+				      osc_base, I8254_IO8, 0);
+	if (!dev->pacer)
+		return -ENOMEM;
+
 	das16_alloc_dma(dev, it->options[2]);
 
 	ret = comedi_alloc_subdevices(dev, 4 + board->has_8255);
diff --git a/drivers/staging/comedi/drivers/das16m1.c b/drivers/staging/comedi/drivers/das16m1.c
index 3666a68..1adf6a7 100644
--- a/drivers/staging/comedi/drivers/das16m1.c
+++ b/drivers/staging/comedi/drivers/das16m1.c
@@ -53,12 +53,12 @@ irq can be omitted, although the cmd interface will not work without it.
 */
 
 #include <linux/module.h>
+#include <linux/slab.h>
 #include <linux/interrupt.h>
 #include "../comedidev.h"
 
 #include "8255.h"
-#include "8253.h"
-#include "comedi_fc.h"
+#include "comedi_8254.h"
 
 #define DAS16M1_SIZE2 8
 
@@ -103,8 +103,6 @@ irq can be omitted, although the cmd interface will not work without it.
 #define   Q_RANGE(x)             (((x) & 0xf) << 4)
 #define   UNIPOLAR               0x40
 #define DAS16M1_8254_FIRST             0x8
-#define DAS16M1_8254_FIRST_CNTRL       0xb
-#define   TOTAL_CLEAR                    0x30
 #define DAS16M1_8254_SECOND            0xc
 #define DAS16M1_82C55                  0x400
 #define DAS16M1_8254_THIRD             0x404
@@ -124,6 +122,7 @@ static const struct comedi_lrange range_das16m1 = {
 };
 
 struct das16m1_private_struct {
+	struct comedi_8254 *counter;
 	unsigned int control_state;
 	unsigned int adc_count;	/*  number of samples completed */
 	/* initial value in lower half of hardware conversion counter,
@@ -131,8 +130,6 @@ struct das16m1_private_struct {
 	 * counter yet (loaded by first sample conversion) */
 	u16 initial_hw_count;
 	unsigned short ai_buffer[FIFO_SIZE];
-	unsigned int divisor1;	/*  divides master clock to obtain conversion speed */
-	unsigned int divisor2;	/*  divides master clock to obtain conversion speed */
 	unsigned long extra_iobase;
 };
 
@@ -169,7 +166,7 @@ static int das16m1_ai_check_chanlist(struct comedi_device *dev,
 
 		if ((i % 2) != (chan % 2)) {
 			dev_dbg(dev->class_dev,
-				 "even/odd channels must go have even/odd chanlist indices\n");
+				"even/odd channels must go have even/odd chanlist indices\n");
 			return -EINVAL;
 		}
 	}
@@ -180,26 +177,25 @@ static int das16m1_ai_check_chanlist(struct comedi_device *dev,
 static int das16m1_cmd_test(struct comedi_device *dev,
 			    struct comedi_subdevice *s, struct comedi_cmd *cmd)
 {
-	struct das16m1_private_struct *devpriv = dev->private;
 	int err = 0;
-	unsigned int arg;
 
 	/* Step 1 : check if triggers are trivially valid */
 
-	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_EXT);
-	err |= cfc_check_trigger_src(&cmd->scan_begin_src, TRIG_FOLLOW);
-	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_TIMER | TRIG_EXT);
-	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
+	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_EXT);
+	err |= comedi_check_trigger_src(&cmd->scan_begin_src, TRIG_FOLLOW);
+	err |= comedi_check_trigger_src(&cmd->convert_src,
+					TRIG_TIMER | TRIG_EXT);
+	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
 	/* Step 2a : make sure trigger sources are unique */
 
-	err |= cfc_check_trigger_is_unique(cmd->start_src);
-	err |= cfc_check_trigger_is_unique(cmd->convert_src);
-	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+	err |= comedi_check_trigger_is_unique(cmd->start_src);
+	err |= comedi_check_trigger_is_unique(cmd->convert_src);
+	err |= comedi_check_trigger_is_unique(cmd->stop_src);
 
 	/* Step 2b : and mutually compatible */
 
@@ -208,20 +204,21 @@ static int das16m1_cmd_test(struct comedi_device *dev,
 
 	/* Step 3: check if arguments are trivially valid */
 
-	err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
 
 	if (cmd->scan_begin_src == TRIG_FOLLOW)	/* internal trigger */
-		err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
 
 	if (cmd->convert_src == TRIG_TIMER)
-		err |= cfc_check_trigger_arg_min(&cmd->convert_arg, 1000);
+		err |= comedi_check_trigger_arg_min(&cmd->convert_arg, 1000);
 
-	err |= cfc_check_trigger_arg_is(&cmd->scan_end_arg, cmd->chanlist_len);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
+					   cmd->chanlist_len);
 
 	if (cmd->stop_src == TRIG_COUNT)
-		err |= cfc_check_trigger_arg_min(&cmd->stop_arg, 1);
+		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
 	else	/* TRIG_NONE */
-		err |= cfc_check_trigger_arg_is(&cmd->stop_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
 
 	if (err)
 		return 3;
@@ -229,12 +226,10 @@ static int das16m1_cmd_test(struct comedi_device *dev,
 	/* step 4: fix up arguments */
 
 	if (cmd->convert_src == TRIG_TIMER) {
-		arg = cmd->convert_arg;
-		i8253_cascade_ns_to_timer(I8254_OSC_BASE_10MHZ,
-					  &devpriv->divisor1,
-					  &devpriv->divisor2,
-					  &arg, cmd->flags);
-		err |= cfc_check_trigger_arg_is(&cmd->convert_arg, arg);
+		unsigned int arg = cmd->convert_arg;
+
+		comedi_8254_cascade_ns_to_timer(dev->pacer, &arg, cmd->flags);
+		err |= comedi_check_trigger_arg_is(&cmd->convert_arg, arg);
 	}
 
 	if (err)
@@ -250,25 +245,12 @@ static int das16m1_cmd_test(struct comedi_device *dev,
 	return 0;
 }
 
-static void das16m1_set_pacer(struct comedi_device *dev)
-{
-	struct das16m1_private_struct *devpriv = dev->private;
-	unsigned long timer_base = dev->iobase + DAS16M1_8254_SECOND;
-
-	i8254_set_mode(timer_base, 0, 1, I8254_MODE2 | I8254_BINARY);
-	i8254_set_mode(timer_base, 0, 2, I8254_MODE2 | I8254_BINARY);
-
-	i8254_write(timer_base, 0, 1, devpriv->divisor1);
-	i8254_write(timer_base, 0, 2, devpriv->divisor2);
-}
-
 static int das16m1_cmd_exec(struct comedi_device *dev,
 			    struct comedi_subdevice *s)
 {
 	struct das16m1_private_struct *devpriv = dev->private;
 	struct comedi_async *async = s->async;
 	struct comedi_cmd *cmd = &async->cmd;
-	unsigned long timer_base = dev->iobase + DAS16M1_8254_FIRST;
 	unsigned int byte, i;
 
 	/* disable interrupts and internal pacer */
@@ -277,14 +259,21 @@ static int das16m1_cmd_exec(struct comedi_device *dev,
 
 	/*  set software count */
 	devpriv->adc_count = 0;
-	/* Initialize lower half of hardware counter, used to determine how
+
+	/*
+	 * Initialize lower half of hardware counter, used to determine how
 	 * many samples are in fifo.  Value doesn't actually load into counter
-	 * until counter's next clock (the next a/d conversion) */
-	i8254_set_mode(timer_base, 0, 1, I8254_MODE2 | I8254_BINARY);
-	i8254_write(timer_base, 0, 1, 0);
-	/* remember current reading of counter so we know when counter has
-	 * actually been loaded */
-	devpriv->initial_hw_count = i8254_read(timer_base, 0, 1);
+	 * until counter's next clock (the next a/d conversion).
+	 */
+	comedi_8254_set_mode(devpriv->counter, 1, I8254_MODE2 | I8254_BINARY);
+	comedi_8254_write(devpriv->counter, 1, 0);
+
+	/*
+	 * Remember current reading of counter so we know when counter has
+	 * actually been loaded.
+	 */
+	devpriv->initial_hw_count = comedi_8254_read(devpriv->counter, 1);
+
 	/* setup channel/gain queue */
 	for (i = 0; i < cmd->chanlist_len; i++) {
 		outb(i, dev->iobase + DAS16M1_QUEUE_ADDR);
@@ -297,7 +286,8 @@ static int das16m1_cmd_exec(struct comedi_device *dev,
 	/* enable interrupts and set internal pacer counter mode and counts */
 	devpriv->control_state &= ~PACER_MASK;
 	if (cmd->convert_src == TRIG_TIMER) {
-		das16m1_set_pacer(dev);
+		comedi_8254_update_divisors(dev->pacer);
+		comedi_8254_pacer_enable(dev->pacer, 1, 2, true);
 		devpriv->control_state |= INT_PACER;
 	} else {	/* TRIG_EXT */
 		devpriv->control_state |= EXT_PACER;
@@ -417,8 +407,8 @@ static void das16m1_handler(struct comedi_device *dev, unsigned int status)
 	async = s->async;
 	cmd = &async->cmd;
 
-	/*  figure out how many samples are in fifo */
-	hw_counter = i8254_read(dev->iobase + DAS16M1_8254_FIRST, 0, 1);
+	/* figure out how many samples are in fifo */
+	hw_counter = comedi_8254_read(devpriv->counter, 1);
 	/* make sure hardware counter reading is not bogus due to initial value
 	 * not having been loaded yet */
 	if (devpriv->adc_count == 0 && hw_counter == devpriv->initial_hw_count) {
@@ -563,6 +553,16 @@ static int das16m1_attach(struct comedi_device *dev,
 			dev->irq = it->options[1];
 	}
 
+	dev->pacer = comedi_8254_init(dev->iobase + DAS16M1_8254_SECOND,
+				      I8254_OSC_BASE_10MHZ, I8254_IO8, 0);
+	if (!dev->pacer)
+		return -ENOMEM;
+
+	devpriv->counter = comedi_8254_init(dev->iobase + DAS16M1_8254_FIRST,
+					    0, I8254_IO8, 0);
+	if (!devpriv->counter)
+		return -ENOMEM;
+
 	ret = comedi_alloc_subdevices(dev, 4);
 	if (ret)
 		return ret;
@@ -609,9 +609,6 @@ static int das16m1_attach(struct comedi_device *dev,
 	if (ret)
 		return ret;
 
-	/*  disable upper half of hardware conversion counter so it doesn't mess with us */
-	outb(TOTAL_CLEAR, dev->iobase + DAS16M1_8254_FIRST_CNTRL);
-
 	/*  initialize digital output lines */
 	outb(0, dev->iobase + DAS16M1_DIO);
 
@@ -626,8 +623,11 @@ static void das16m1_detach(struct comedi_device *dev)
 {
 	struct das16m1_private_struct *devpriv = dev->private;
 
-	if (devpriv && devpriv->extra_iobase)
-		release_region(devpriv->extra_iobase, DAS16M1_SIZE2);
+	if (devpriv) {
+		if (devpriv->extra_iobase)
+			release_region(devpriv->extra_iobase, DAS16M1_SIZE2);
+		kfree(devpriv->counter);
+	}
 	comedi_legacy_detach(dev);
 }
 
diff --git a/drivers/staging/comedi/drivers/das1800.c b/drivers/staging/comedi/drivers/das1800.c
index 0790a28..53baf37 100644
--- a/drivers/staging/comedi/drivers/das1800.c
+++ b/drivers/staging/comedi/drivers/das1800.c
@@ -102,8 +102,7 @@ TODO:
 #include "../comedidev.h"
 
 #include "comedi_isadma.h"
-#include "comedi_fc.h"
-#include "8253.h"
+#include "comedi_8254.h"
 
 /* misc. defines */
 #define DAS1800_SIZE           16	/* uses 16 io addresses */
@@ -422,8 +421,6 @@ static const struct das1800_board das1800_boards[] = {
 
 struct das1800_private {
 	struct comedi_isadma *dma;
-	unsigned int divisor1;	/* value to load into board's counter 1 for timed conversions */
-	unsigned int divisor2;	/* value to load into board's counter 2 for timed conversions */
 	int irq_dma_bits;	/* bits for control register b */
 	/* dma bits for control register b, stored so that dma can be
 	 * turned on and off */
@@ -491,9 +488,7 @@ static void das1800_handle_fifo_not_empty(struct comedi_device *dev,
 
 	while (inb(dev->iobase + DAS1800_STATUS) & FNE) {
 		dpnt = inw(dev->iobase + DAS1800_FIFO);
-		/* convert to unsigned type if we are in a bipolar mode */
-		if (!unipolar)
-			;
+		/* convert to unsigned type */
 		dpnt = munge_bipolar_sample(dev, dpnt);
 		comedi_buf_write_samples(s, &dpnt, 1);
 
@@ -731,18 +726,18 @@ static int das1800_ai_do_cmdtest(struct comedi_device *dev,
 				 struct comedi_cmd *cmd)
 {
 	const struct das1800_board *thisboard = dev->board_ptr;
-	struct das1800_private *devpriv = dev->private;
 	int err = 0;
 	unsigned int arg;
 
 	/* Step 1 : check if triggers are trivially valid */
 
-	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_EXT);
-	err |= cfc_check_trigger_src(&cmd->scan_begin_src,
+	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_EXT);
+	err |= comedi_check_trigger_src(&cmd->scan_begin_src,
 					TRIG_FOLLOW | TRIG_TIMER | TRIG_EXT);
-	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_TIMER | TRIG_EXT);
-	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= cfc_check_trigger_src(&cmd->stop_src,
+	err |= comedi_check_trigger_src(&cmd->convert_src,
+					TRIG_TIMER | TRIG_EXT);
+	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= comedi_check_trigger_src(&cmd->stop_src,
 					TRIG_COUNT | TRIG_EXT | TRIG_NONE);
 
 	if (err)
@@ -750,10 +745,10 @@ static int das1800_ai_do_cmdtest(struct comedi_device *dev,
 
 	/* Step 2a : make sure trigger sources are unique */
 
-	err |= cfc_check_trigger_is_unique(cmd->start_src);
-	err |= cfc_check_trigger_is_unique(cmd->scan_begin_src);
-	err |= cfc_check_trigger_is_unique(cmd->convert_src);
-	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+	err |= comedi_check_trigger_is_unique(cmd->start_src);
+	err |= comedi_check_trigger_is_unique(cmd->scan_begin_src);
+	err |= comedi_check_trigger_is_unique(cmd->convert_src);
+	err |= comedi_check_trigger_is_unique(cmd->stop_src);
 
 	/* Step 2b : and mutually compatible */
 
@@ -766,21 +761,23 @@ static int das1800_ai_do_cmdtest(struct comedi_device *dev,
 
 	/* Step 3: check if arguments are trivially valid */
 
-	err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
 
-	if (cmd->convert_src == TRIG_TIMER)
-		err |= cfc_check_trigger_arg_min(&cmd->convert_arg,
-						 thisboard->ai_speed);
+	if (cmd->convert_src == TRIG_TIMER) {
+		err |= comedi_check_trigger_arg_min(&cmd->convert_arg,
+						    thisboard->ai_speed);
+	}
 
-	err |= cfc_check_trigger_arg_min(&cmd->chanlist_len, 1);
-	err |= cfc_check_trigger_arg_is(&cmd->scan_end_arg, cmd->chanlist_len);
+	err |= comedi_check_trigger_arg_min(&cmd->chanlist_len, 1);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
+					   cmd->chanlist_len);
 
 	switch (cmd->stop_src) {
 	case TRIG_COUNT:
-		err |= cfc_check_trigger_arg_min(&cmd->stop_arg, 1);
+		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
 		break;
 	case TRIG_NONE:
-		err |= cfc_check_trigger_arg_is(&cmd->stop_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
 		break;
 	default:
 		break;
@@ -795,35 +792,24 @@ static int das1800_ai_do_cmdtest(struct comedi_device *dev,
 	    cmd->convert_src == TRIG_TIMER) {
 		/* we are not in burst mode */
 		arg = cmd->convert_arg;
-		i8253_cascade_ns_to_timer(I8254_OSC_BASE_5MHZ,
-					  &devpriv->divisor1,
-					  &devpriv->divisor2,
-					  &cmd->convert_arg, cmd->flags);
-		if (arg != cmd->convert_arg)
-			err++;
+		comedi_8254_cascade_ns_to_timer(dev->pacer, &arg, cmd->flags);
+		err |= comedi_check_trigger_arg_is(&cmd->convert_arg, arg);
 	} else if (cmd->convert_src == TRIG_TIMER) {
 		/* we are in burst mode */
-		arg = cmd->convert_arg;
-		cmd->convert_arg = burst_convert_arg(cmd->convert_arg,
-						     cmd->flags);
-		if (arg != cmd->convert_arg)
-			err++;
+		arg = burst_convert_arg(cmd->convert_arg, cmd->flags);
+		err |= comedi_check_trigger_arg_is(&cmd->convert_arg, arg);
 
 		if (cmd->scan_begin_src == TRIG_TIMER) {
 			arg = cmd->convert_arg * cmd->chanlist_len;
-			if (arg > cmd->scan_begin_arg) {
-				cmd->scan_begin_arg = arg;
-				err++;
-			}
+			err |= comedi_check_trigger_arg_max(&cmd->
+							    scan_begin_arg,
+							    arg);
 
 			arg = cmd->scan_begin_arg;
-			i8253_cascade_ns_to_timer(I8254_OSC_BASE_5MHZ,
-						  &devpriv->divisor1,
-						  &devpriv->divisor2,
-						  &cmd->scan_begin_arg,
-						  cmd->flags);
-			if (arg != cmd->scan_begin_arg)
-				err++;
+			comedi_8254_cascade_ns_to_timer(dev->pacer, &arg,
+							cmd->flags);
+			err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg,
+							   arg);
 		}
 	}
 
@@ -910,31 +896,6 @@ static int control_c_bits(const struct comedi_cmd *cmd)
 	return control_c;
 }
 
-static void das1800_setup_counters(struct comedi_device *dev,
-				   const struct comedi_cmd *cmd)
-{
-	struct das1800_private *devpriv = dev->private;
-	unsigned long timer_base = dev->iobase + DAS1800_COUNTER;
-
-	/* setup cascaded counters for conversion/scan frequency */
-	if ((cmd->scan_begin_src == TRIG_FOLLOW ||
-	     cmd->scan_begin_src == TRIG_TIMER) &&
-	    cmd->convert_src == TRIG_TIMER) {
-		i8254_set_mode(timer_base, 0, 1, I8254_MODE2 | I8254_BINARY);
-		i8254_set_mode(timer_base, 0, 2, I8254_MODE2 | I8254_BINARY);
-
-		i8254_write(timer_base, 0, 1, devpriv->divisor1);
-		i8254_write(timer_base, 0, 2, devpriv->divisor2);
-	}
-
-	/* setup counter 0 for 'about triggering' */
-	if (cmd->stop_src == TRIG_EXT) {
-		i8254_set_mode(timer_base, 0, 0, I8254_MODE0 | I8254_BINARY);
-
-		i8254_write(timer_base, 0, 0, 1);
-	}
-}
-
 static unsigned int das1800_ai_transfer_size(struct comedi_device *dev,
 					     struct comedi_subdevice *s,
 					     unsigned int maxbytes,
@@ -1053,7 +1014,19 @@ static int das1800_ai_do_cmd(struct comedi_device *dev,
 
 	/* setup card and start */
 	program_chanlist(dev, cmd);
-	das1800_setup_counters(dev, cmd);
+
+	/* setup cascaded counters for conversion/scan frequency */
+	if ((cmd->scan_begin_src == TRIG_FOLLOW ||
+	     cmd->scan_begin_src == TRIG_TIMER) &&
+	    cmd->convert_src == TRIG_TIMER) {
+		comedi_8254_update_divisors(dev->pacer);
+		comedi_8254_pacer_enable(dev->pacer, 1, 2, true);
+	}
+
+	/* setup counter 0 for 'about triggering' */
+	if (cmd->stop_src == TRIG_EXT)
+		comedi_8254_load(dev->pacer, 0, 1, I8254_MODE0 | I8254_BINARY);
+
 	das1800_ai_setup_dma(dev, s);
 	outb(control_c, dev->iobase + DAS1800_CONTROL_C);
 	/*  set conversion rate and length for burst mode */
@@ -1171,7 +1144,6 @@ static int das1800_di_rbits(struct comedi_device *dev,
 			    struct comedi_subdevice *s,
 			    struct comedi_insn *insn, unsigned int *data)
 {
-
 	data[1] = inb(dev->iobase + DAS1800_DIGITAL) & 0xf;
 	data[0] = 0;
 
@@ -1378,6 +1350,11 @@ static int das1800_attach(struct comedi_device *dev,
 	if (!devpriv->fifo_buf)
 		return -ENOMEM;
 
+	dev->pacer = comedi_8254_init(dev->iobase + DAS1800_COUNTER,
+				      I8254_OSC_BASE_5MHZ, I8254_IO8, 0);
+	if (!dev->pacer)
+		return -ENOMEM;
+
 	ret = comedi_alloc_subdevices(dev, 4);
 	if (ret)
 		return ret;
diff --git a/drivers/staging/comedi/drivers/das6402.c b/drivers/staging/comedi/drivers/das6402.c
index b8755b5..1701294 100644
--- a/drivers/staging/comedi/drivers/das6402.c
+++ b/drivers/staging/comedi/drivers/das6402.c
@@ -35,8 +35,8 @@
 #include <linux/interrupt.h>
 
 #include "../comedidev.h"
-#include "comedi_fc.h"
-#include "8253.h"
+
+#include "comedi_8254.h"
 
 /*
  * Register I/O map
@@ -138,11 +138,6 @@ static struct das6402_boardinfo das6402_boards[] = {
 
 struct das6402_private {
 	unsigned int irq;
-
-	unsigned int count;
-	unsigned int divider1;
-	unsigned int divider2;
-
 	unsigned int ao_range;
 };
 
@@ -172,27 +167,6 @@ static void das6402_ai_clear_eoc(struct comedi_device *dev)
 	outb(DAS6402_STATUS_W_CLRINT, dev->iobase + DAS6402_STATUS_REG);
 }
 
-static void das6402_enable_counter(struct comedi_device *dev, bool load)
-{
-	struct das6402_private *devpriv = dev->private;
-	unsigned long timer_iobase = dev->iobase + DAS6402_TIMER_BASE;
-
-	if (load) {
-		i8254_set_mode(timer_iobase, 0, 0, I8254_MODE0 | I8254_BINARY);
-		i8254_set_mode(timer_iobase, 0, 1, I8254_MODE2 | I8254_BINARY);
-		i8254_set_mode(timer_iobase, 0, 2, I8254_MODE2 | I8254_BINARY);
-
-		i8254_write(timer_iobase, 0, 0, devpriv->count);
-		i8254_write(timer_iobase, 0, 1, devpriv->divider1);
-		i8254_write(timer_iobase, 0, 2, devpriv->divider2);
-
-	} else {
-		i8254_set_mode(timer_iobase, 0, 0, I8254_MODE0 | I8254_BINARY);
-		i8254_set_mode(timer_iobase, 0, 1, I8254_MODE0 | I8254_BINARY);
-		i8254_set_mode(timer_iobase, 0, 2, I8254_MODE0 | I8254_BINARY);
-	}
-}
-
 static unsigned int das6402_ai_read_sample(struct comedi_device *dev,
 					   struct comedi_subdevice *s)
 {
@@ -267,7 +241,8 @@ static int das6402_ai_cmd(struct comedi_device *dev,
 	outw(DAS6402_AI_MUX_HI(chan_hi) | DAS6402_AI_MUX_LO(chan_lo),
 	     dev->iobase + DAS6402_AI_MUX_REG);
 
-	das6402_enable_counter(dev, true);
+	comedi_8254_update_divisors(dev->pacer);
+	comedi_8254_pacer_enable(dev->pacer, 1, 2, true);
 
 	/* enable interrupt and pacer trigger */
 	outb(DAS6402_CTRL_INTE |
@@ -322,24 +297,23 @@ static int das6402_ai_cmdtest(struct comedi_device *dev,
 			      struct comedi_subdevice *s,
 			      struct comedi_cmd *cmd)
 {
-	struct das6402_private *devpriv = dev->private;
 	int err = 0;
 	unsigned int arg;
 
 	/* Step 1 : check if triggers are trivially valid */
 
-	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW);
-	err |= cfc_check_trigger_src(&cmd->scan_begin_src, TRIG_FOLLOW);
-	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_TIMER);
-	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
+	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW);
+	err |= comedi_check_trigger_src(&cmd->scan_begin_src, TRIG_FOLLOW);
+	err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_TIMER);
+	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
 	/* Step 2a : make sure trigger sources are unique */
 
-	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+	err |= comedi_check_trigger_is_unique(cmd->stop_src);
 
 	/* Step 2b : and mutually compatible */
 
@@ -348,30 +322,26 @@ static int das6402_ai_cmdtest(struct comedi_device *dev,
 
 	/* Step 3: check if arguments are trivially valid */
 
-	err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0);
-	err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
-	err |= cfc_check_trigger_arg_min(&cmd->convert_arg, 10000);
-	err |= cfc_check_trigger_arg_min(&cmd->chanlist_len, 1);
-	err |= cfc_check_trigger_arg_is(&cmd->scan_end_arg, cmd->chanlist_len);
+	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
+	err |= comedi_check_trigger_arg_min(&cmd->convert_arg, 10000);
+	err |= comedi_check_trigger_arg_min(&cmd->chanlist_len, 1);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
+					   cmd->chanlist_len);
 
 	if (cmd->stop_src == TRIG_COUNT)
-		err |= cfc_check_trigger_arg_min(&cmd->stop_arg, 1);
+		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
 	else	/* TRIG_NONE */
-		err |= cfc_check_trigger_arg_is(&cmd->stop_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
 
 	if (err)
 		return 3;
 
 	/* step 4: fix up any arguments */
 
-	if (cmd->convert_src == TRIG_TIMER) {
-		arg = cmd->convert_arg;
-		i8253_cascade_ns_to_timer(I8254_OSC_BASE_10MHZ,
-					  &devpriv->divider1,
-					  &devpriv->divider2,
-					  &arg, cmd->flags);
-		err |= cfc_check_trigger_arg_is(&cmd->convert_arg, arg);
-	}
+	arg = cmd->convert_arg;
+	comedi_8254_cascade_ns_to_timer(dev->pacer, &arg, cmd->flags);
+	err |= comedi_check_trigger_arg_is(&cmd->convert_arg, arg);
 
 	if (err)
 		return 4;
@@ -581,8 +551,6 @@ static void das6402_reset(struct comedi_device *dev)
 	outw(0, dev->iobase + DAS6402_AO_DATA_REG(0));
 	inw(dev->iobase + DAS6402_AO_LSB_REG(0));
 
-	das6402_enable_counter(dev, false);
-
 	/* set all digital outputs low */
 	outb(0, dev->iobase + DAS6402_DI_DO_REG);
 
@@ -631,6 +599,11 @@ static int das6402_attach(struct comedi_device *dev,
 		}
 	}
 
+	dev->pacer = comedi_8254_init(dev->iobase + DAS6402_TIMER_BASE,
+				      I8254_OSC_BASE_10MHZ, I8254_IO8, 0);
+	if (!dev->pacer)
+		return -ENOMEM;
+
 	ret = comedi_alloc_subdevices(dev, 4);
 	if (ret)
 		return ret;
diff --git a/drivers/staging/comedi/drivers/das800.c b/drivers/staging/comedi/drivers/das800.c
index ff7f4be..39d304a 100644
--- a/drivers/staging/comedi/drivers/das800.c
+++ b/drivers/staging/comedi/drivers/das800.c
@@ -43,8 +43,6 @@ Notes:
 
 	The cio-das802/16 does not have a fifo-empty status bit!  Therefore
 	only fifo-half-full transfers are possible with this card.
-*/
-/*
 
 cmd triggers supported:
 	start_src:      TRIG_NOW | TRIG_EXT
@@ -52,18 +50,15 @@ cmd triggers supported:
 	scan_end_src:   TRIG_COUNT
 	convert_src:    TRIG_TIMER | TRIG_EXT
 	stop_src:       TRIG_NONE | TRIG_COUNT
-
-
 */
 
 #include <linux/module.h>
 #include <linux/interrupt.h>
-#include "../comedidev.h"
-
 #include <linux/delay.h>
 
-#include "8253.h"
-#include "comedi_fc.h"
+#include "../comedidev.h"
+
+#include "comedi_8254.h"
 
 #define N_CHAN_AI             8	/*  number of analog input channels */
 
@@ -219,8 +214,6 @@ static const struct das800_board das800_boards[] = {
 };
 
 struct das800_private {
-	unsigned int divisor1;	/* counter 1 value for timed conversions */
-	unsigned int divisor2;	/* counter 2 value for timed conversions */
 	unsigned int do_bits;	/* digital output bits */
 };
 
@@ -272,17 +265,6 @@ static void das800_disable(struct comedi_device *dev)
 	spin_unlock_irqrestore(&dev->spinlock, irq_flags);
 }
 
-static void das800_set_frequency(struct comedi_device *dev)
-{
-	struct das800_private *devpriv = dev->private;
-	unsigned long timer_base = dev->iobase + DAS800_8254;
-
-	i8254_set_mode(timer_base, 0, 1, I8254_MODE2 | I8254_BINARY);
-	i8254_set_mode(timer_base, 0, 2, I8254_MODE2 | I8254_BINARY);
-	i8254_write(timer_base, 0, 1, devpriv->divisor1);
-	i8254_write(timer_base, 0, 2, devpriv->divisor2);
-}
-
 static int das800_cancel(struct comedi_device *dev, struct comedi_subdevice *s)
 {
 	das800_disable(dev);
@@ -322,26 +304,25 @@ static int das800_ai_do_cmdtest(struct comedi_device *dev,
 				struct comedi_cmd *cmd)
 {
 	const struct das800_board *thisboard = dev->board_ptr;
-	struct das800_private *devpriv = dev->private;
 	int err = 0;
-	unsigned int arg;
 
 	/* Step 1 : check if triggers are trivially valid */
 
-	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_EXT);
-	err |= cfc_check_trigger_src(&cmd->scan_begin_src, TRIG_FOLLOW);
-	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_TIMER | TRIG_EXT);
-	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
+	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_EXT);
+	err |= comedi_check_trigger_src(&cmd->scan_begin_src, TRIG_FOLLOW);
+	err |= comedi_check_trigger_src(&cmd->convert_src,
+					TRIG_TIMER | TRIG_EXT);
+	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
 	/* Step 2a : make sure trigger sources are unique */
 
-	err |= cfc_check_trigger_is_unique(cmd->start_src);
-	err |= cfc_check_trigger_is_unique(cmd->convert_src);
-	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+	err |= comedi_check_trigger_is_unique(cmd->start_src);
+	err |= comedi_check_trigger_is_unique(cmd->convert_src);
+	err |= comedi_check_trigger_is_unique(cmd->stop_src);
 
 	/* Step 2b : and mutually compatible */
 
@@ -350,19 +331,21 @@ static int das800_ai_do_cmdtest(struct comedi_device *dev,
 
 	/* Step 3: check if arguments are trivially valid */
 
-	err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
 
-	if (cmd->convert_src == TRIG_TIMER)
-		err |= cfc_check_trigger_arg_min(&cmd->convert_arg,
-						 thisboard->ai_speed);
+	if (cmd->convert_src == TRIG_TIMER) {
+		err |= comedi_check_trigger_arg_min(&cmd->convert_arg,
+						    thisboard->ai_speed);
+	}
 
-	err |= cfc_check_trigger_arg_min(&cmd->chanlist_len, 1);
-	err |= cfc_check_trigger_arg_is(&cmd->scan_end_arg, cmd->chanlist_len);
+	err |= comedi_check_trigger_arg_min(&cmd->chanlist_len, 1);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
+					   cmd->chanlist_len);
 
 	if (cmd->stop_src == TRIG_COUNT)
-		err |= cfc_check_trigger_arg_min(&cmd->stop_arg, 1);
+		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
 	else	/* TRIG_NONE */
-		err |= cfc_check_trigger_arg_is(&cmd->stop_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
 
 	if (err)
 		return 3;
@@ -370,12 +353,10 @@ static int das800_ai_do_cmdtest(struct comedi_device *dev,
 	/* step 4: fix up any arguments */
 
 	if (cmd->convert_src == TRIG_TIMER) {
-		arg = cmd->convert_arg;
-		i8253_cascade_ns_to_timer(I8254_OSC_BASE_1MHZ,
-					  &devpriv->divisor1,
-					  &devpriv->divisor2,
-					  &arg, cmd->flags);
-		err |= cfc_check_trigger_arg_is(&cmd->convert_arg, arg);
+		unsigned int arg = cmd->convert_arg;
+
+		comedi_8254_cascade_ns_to_timer(dev->pacer, &arg, cmd->flags);
+		err |= comedi_check_trigger_arg_is(&cmd->convert_arg, arg);
 	}
 
 	if (err)
@@ -426,8 +407,8 @@ static int das800_ai_do_cmd(struct comedi_device *dev,
 		conv_bits |= DTEN;
 	if (cmd->convert_src == TRIG_TIMER) {
 		conv_bits |= CASC | ITE;
-		/* set conversion frequency */
-		das800_set_frequency(dev);
+		comedi_8254_update_divisors(dev->pacer);
+		comedi_8254_pacer_enable(dev->pacer, 1, 2, true);
 	}
 
 	spin_lock_irqsave(&dev->spinlock, irq_flags);
@@ -697,6 +678,11 @@ static int das800_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 			dev->irq = irq;
 	}
 
+	dev->pacer = comedi_8254_init(dev->iobase + DAS800_8254,
+				      I8254_OSC_BASE_1MHZ, I8254_IO8, 0);
+	if (!dev->pacer)
+		return -ENOMEM;
+
 	ret = comedi_alloc_subdevices(dev, 3);
 	if (ret)
 		return ret;
diff --git a/drivers/staging/comedi/drivers/dmm32at.c b/drivers/staging/comedi/drivers/dmm32at.c
index 1af0066..bb2883c 100644
--- a/drivers/staging/comedi/drivers/dmm32at.c
+++ b/drivers/staging/comedi/drivers/dmm32at.c
@@ -30,7 +30,7 @@
  * This driver is for the Diamond Systems MM-32-AT board
  *	http://www.diamondsystems.com/products/diamondmm32at
  *
- * It is being used on serveral projects inside NASA, without
+ * It is being used on several projects inside NASA, without
  * problems so far. For analog input commands, TRIG_EXT is not
  * yet supported.
  */
@@ -41,7 +41,6 @@
 #include "../comedidev.h"
 
 #include "8255.h"
-#include "comedi_fc.h"
 
 /* Board register addresses */
 #define DMM32AT_AI_START_CONV_REG	0x00
@@ -274,18 +273,18 @@ static int dmm32at_ai_cmdtest(struct comedi_device *dev,
 
 	/* Step 1 : check if triggers are trivially valid */
 
-	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW);
-	err |= cfc_check_trigger_src(&cmd->scan_begin_src, TRIG_TIMER);
-	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_TIMER);
-	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
+	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW);
+	err |= comedi_check_trigger_src(&cmd->scan_begin_src, TRIG_TIMER);
+	err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_TIMER);
+	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
 	/* Step 2a : make sure trigger sources are unique */
 
-	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+	err |= comedi_check_trigger_is_unique(cmd->stop_src);
 
 	/* Step 2b : and mutually compatible */
 
@@ -294,10 +293,10 @@ static int dmm32at_ai_cmdtest(struct comedi_device *dev,
 
 	/* Step 3: check if arguments are trivially valid */
 
-	err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
 
-	err |= cfc_check_trigger_arg_min(&cmd->scan_begin_arg, 1000000);
-	err |= cfc_check_trigger_arg_max(&cmd->scan_begin_arg, 1000000000);
+	err |= comedi_check_trigger_arg_min(&cmd->scan_begin_arg, 1000000);
+	err |= comedi_check_trigger_arg_max(&cmd->scan_begin_arg, 1000000000);
 
 	if (cmd->convert_arg >= 17500)
 		cmd->convert_arg = 20000;
@@ -308,12 +307,13 @@ static int dmm32at_ai_cmdtest(struct comedi_device *dev,
 	else
 		cmd->convert_arg = 5000;
 
-	err |= cfc_check_trigger_arg_is(&cmd->scan_end_arg, cmd->chanlist_len);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
+					   cmd->chanlist_len);
 
 	if (cmd->stop_src == TRIG_COUNT)
-		err |= cfc_check_trigger_arg_min(&cmd->stop_arg, 1);
+		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
 	else /* TRIG_NONE */
-		err |= cfc_check_trigger_arg_is(&cmd->stop_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
 
 	if (err)
 		return 3;
@@ -321,7 +321,7 @@ static int dmm32at_ai_cmdtest(struct comedi_device *dev,
 	/* Step 4: fix up any arguments */
 
 	arg = cmd->convert_arg * cmd->scan_end_arg;
-	err |= cfc_check_trigger_arg_min(&cmd->scan_begin_arg, arg);
+	err |= comedi_check_trigger_arg_min(&cmd->scan_begin_arg, arg);
 
 	if (err)
 		return 4;
@@ -391,13 +391,12 @@ static int dmm32at_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 		/* start the clock and enable the interrupts */
 		dmm32at_setaitimer(dev, cmd->scan_begin_arg);
 	} else {
-		/* start the interrups and initiate a single scan */
+		/* start the interrupts and initiate a single scan */
 		outb(DMM32AT_INTCLK_ADINT, dev->iobase + DMM32AT_INTCLK_REG);
 		outb(0xff, dev->iobase + DMM32AT_AI_START_CONV_REG);
 	}
 
 	return 0;
-
 }
 
 static int dmm32at_ai_cancel(struct comedi_device *dev,
diff --git a/drivers/staging/comedi/drivers/dt2801.c b/drivers/staging/comedi/drivers/dt2801.c
index b96e60f..80e38de 100644
--- a/drivers/staging/comedi/drivers/dt2801.c
+++ b/drivers/staging/comedi/drivers/dt2801.c
@@ -126,7 +126,6 @@ static const struct comedi_lrange range_dt2801_ai_pgl_unipolar = {
 };
 
 struct dt2801_board {
-
 	const char *name;
 	int boardcode;
 	int ad_diff;
@@ -280,7 +279,7 @@ static int dt2801_writedata2(struct comedi_device *dev, unsigned int data)
 	ret = dt2801_writedata(dev, data & 0xff);
 	if (ret < 0)
 		return ret;
-	ret = dt2801_writedata(dev, (data >> 8));
+	ret = dt2801_writedata(dev, data >> 8);
 	if (ret < 0)
 		return ret;
 
diff --git a/drivers/staging/comedi/drivers/dt2811.c b/drivers/staging/comedi/drivers/dt2811.c
index d660f27..a807732 100644
--- a/drivers/staging/comedi/drivers/dt2811.c
+++ b/drivers/staging/comedi/drivers/dt2811.c
@@ -194,7 +194,6 @@ static const struct comedi_lrange range_dt2811_pgl_ai_5_bipolar = {
 #define DT2811_ADMODE   0x03
 
 struct dt2811_board {
-
 	const char *name;
 	const struct comedi_lrange *bip_5;
 	const struct comedi_lrange *bip_2_5;
diff --git a/drivers/staging/comedi/drivers/dt2814.c b/drivers/staging/comedi/drivers/dt2814.c
index 9805be1..66705f9 100644
--- a/drivers/staging/comedi/drivers/dt2814.c
+++ b/drivers/staging/comedi/drivers/dt2814.c
@@ -40,8 +40,6 @@ addition, the clock does not seem to be very accurate.
 
 #include <linux/delay.h>
 
-#include "comedi_fc.h"
-
 #define DT2814_CSR 0
 #define DT2814_DATA 1
 
@@ -56,7 +54,6 @@ addition, the clock does not seem to be very accurate.
 #define DT2814_CHANMASK 0x0f
 
 struct dt2814_private {
-
 	int ntrig;
 	int curadchan;
 };
@@ -130,18 +127,18 @@ static int dt2814_ai_cmdtest(struct comedi_device *dev,
 
 	/* Step 1 : check if triggers are trivially valid */
 
-	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW);
-	err |= cfc_check_trigger_src(&cmd->scan_begin_src, TRIG_TIMER);
-	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_NOW);
-	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
+	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW);
+	err |= comedi_check_trigger_src(&cmd->scan_begin_src, TRIG_TIMER);
+	err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_NOW);
+	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
 	/* Step 2a : make sure trigger sources are unique */
 
-	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+	err |= comedi_check_trigger_is_unique(cmd->stop_src);
 
 	/* Step 2b : and mutually compatible */
 
@@ -150,18 +147,19 @@ static int dt2814_ai_cmdtest(struct comedi_device *dev,
 
 	/* Step 3: check if arguments are trivially valid */
 
-	err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
 
-	err |= cfc_check_trigger_arg_max(&cmd->scan_begin_arg, 1000000000);
-	err |= cfc_check_trigger_arg_min(&cmd->scan_begin_arg,
-					 DT2814_MAX_SPEED);
+	err |= comedi_check_trigger_arg_max(&cmd->scan_begin_arg, 1000000000);
+	err |= comedi_check_trigger_arg_min(&cmd->scan_begin_arg,
+					    DT2814_MAX_SPEED);
 
-	err |= cfc_check_trigger_arg_is(&cmd->scan_end_arg, cmd->chanlist_len);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
+					   cmd->chanlist_len);
 
 	if (cmd->stop_src == TRIG_COUNT)
-		err |= cfc_check_trigger_arg_min(&cmd->stop_arg, 2);
+		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 2);
 	else	/* TRIG_NONE */
-		err |= cfc_check_trigger_arg_is(&cmd->stop_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
 
 	if (err)
 		return 3;
@@ -170,7 +168,7 @@ static int dt2814_ai_cmdtest(struct comedi_device *dev,
 
 	arg = cmd->scan_begin_arg;
 	dt2814_ns_to_timer(&arg, cmd->flags);
-	err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, arg);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, arg);
 
 	if (err)
 		return 4;
@@ -193,7 +191,6 @@ static int dt2814_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 	outb(chan | DT2814_ENB | (trigvar << 5), dev->iobase + DT2814_CSR);
 
 	return 0;
-
 }
 
 static irqreturn_t dt2814_interrupt(int irq, void *d)
diff --git a/drivers/staging/comedi/drivers/dt2815.c b/drivers/staging/comedi/drivers/dt2815.c
index a98fb66..fb08569 100644
--- a/drivers/staging/comedi/drivers/dt2815.c
+++ b/drivers/staging/comedi/drivers/dt2815.c
@@ -60,7 +60,6 @@ Configuration options:
 #define DT2815_STATUS 1
 
 struct dt2815_private {
-
 	const struct comedi_lrange *range_type_list[8];
 	unsigned int ao_readback[8];
 };
diff --git a/drivers/staging/comedi/drivers/dt282x.c b/drivers/staging/comedi/drivers/dt282x.c
index db21d21..5a536a0 100644
--- a/drivers/staging/comedi/drivers/dt282x.c
+++ b/drivers/staging/comedi/drivers/dt282x.c
@@ -64,7 +64,6 @@
 #include "../comedidev.h"
 
 #include "comedi_isadma.h"
-#include "comedi_fc.h"
 
 /*
  * Register map
@@ -661,20 +660,20 @@ static int dt282x_ai_cmdtest(struct comedi_device *dev,
 
 	/* Step 1 : check if triggers are trivially valid */
 
-	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW);
-	err |= cfc_check_trigger_src(&cmd->scan_begin_src,
+	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW);
+	err |= comedi_check_trigger_src(&cmd->scan_begin_src,
 					TRIG_FOLLOW | TRIG_EXT);
-	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_TIMER);
-	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
+	err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_TIMER);
+	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
 	/* Step 2a : make sure trigger sources are unique */
 
-	err |= cfc_check_trigger_is_unique(cmd->scan_begin_src);
-	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+	err |= comedi_check_trigger_is_unique(cmd->scan_begin_src);
+	err |= comedi_check_trigger_is_unique(cmd->stop_src);
 
 	/* Step 2b : and mutually compatible */
 
@@ -683,21 +682,22 @@ static int dt282x_ai_cmdtest(struct comedi_device *dev,
 
 	/* Step 3: check if arguments are trivially valid */
 
-	err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
 
-	err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
 
-	err |= cfc_check_trigger_arg_min(&cmd->convert_arg, 4000);
+	err |= comedi_check_trigger_arg_min(&cmd->convert_arg, 4000);
 
 #define SLOWEST_TIMER	(250*(1<<15)*255)
-	err |= cfc_check_trigger_arg_max(&cmd->convert_arg, SLOWEST_TIMER);
-	err |= cfc_check_trigger_arg_min(&cmd->convert_arg, board->ai_speed);
-	err |= cfc_check_trigger_arg_is(&cmd->scan_end_arg, cmd->chanlist_len);
+	err |= comedi_check_trigger_arg_max(&cmd->convert_arg, SLOWEST_TIMER);
+	err |= comedi_check_trigger_arg_min(&cmd->convert_arg, board->ai_speed);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
+					   cmd->chanlist_len);
 
 	if (cmd->stop_src == TRIG_COUNT)
-		err |= cfc_check_trigger_arg_min(&cmd->stop_arg, 1);
+		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
 	else	/* TRIG_EXT | TRIG_NONE */
-		err |= cfc_check_trigger_arg_is(&cmd->stop_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
 
 	if (err)
 		return 3;
@@ -706,7 +706,7 @@ static int dt282x_ai_cmdtest(struct comedi_device *dev,
 
 	arg = cmd->convert_arg;
 	devpriv->divisor = dt282x_ns_to_timer(&arg, cmd->flags);
-	err |= cfc_check_trigger_arg_is(&cmd->convert_arg, arg);
+	err |= comedi_check_trigger_arg_is(&cmd->convert_arg, arg);
 
 	if (err)
 		return 4;
@@ -764,7 +764,7 @@ static int dt282x_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 
 	if (cmd->scan_begin_src == TRIG_FOLLOW) {
 		outw(devpriv->supcsr | DT2821_SUPCSR_STRIG,
-			dev->iobase + DT2821_SUPCSR_REG);
+		     dev->iobase + DT2821_SUPCSR_REG);
 	} else {
 		devpriv->supcsr |= DT2821_SUPCSR_XTRIG;
 		outw(devpriv->supcsr, dev->iobase + DT2821_SUPCSR_REG);
@@ -831,18 +831,18 @@ static int dt282x_ao_cmdtest(struct comedi_device *dev,
 
 	/* Step 1 : check if triggers are trivially valid */
 
-	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_INT);
-	err |= cfc_check_trigger_src(&cmd->scan_begin_src, TRIG_TIMER);
-	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_NOW);
-	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
+	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_INT);
+	err |= comedi_check_trigger_src(&cmd->scan_begin_src, TRIG_TIMER);
+	err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_NOW);
+	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
 	/* Step 2a : make sure trigger sources are unique */
 
-	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+	err |= comedi_check_trigger_is_unique(cmd->stop_src);
 
 	/* Step 2b : and mutually compatible */
 
@@ -851,15 +851,16 @@ static int dt282x_ao_cmdtest(struct comedi_device *dev,
 
 	/* Step 3: check if arguments are trivially valid */
 
-	err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0);
-	err |= cfc_check_trigger_arg_min(&cmd->scan_begin_arg, 5000);
-	err |= cfc_check_trigger_arg_is(&cmd->convert_arg, 0);
-	err |= cfc_check_trigger_arg_is(&cmd->scan_end_arg, cmd->chanlist_len);
+	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
+	err |= comedi_check_trigger_arg_min(&cmd->scan_begin_arg, 5000);
+	err |= comedi_check_trigger_arg_is(&cmd->convert_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
+					   cmd->chanlist_len);
 
 	if (cmd->stop_src == TRIG_COUNT)
-		err |= cfc_check_trigger_arg_min(&cmd->stop_arg, 1);
+		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
 	else	/* TRIG_EXT | TRIG_NONE */
-		err |= cfc_check_trigger_arg_is(&cmd->stop_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
 
 	if (err)
 		return 3;
@@ -868,13 +869,12 @@ static int dt282x_ao_cmdtest(struct comedi_device *dev,
 
 	arg = cmd->scan_begin_arg;
 	devpriv->divisor = dt282x_ns_to_timer(&arg, cmd->flags);
-	err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, arg);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, arg);
 
 	if (err)
 		return 4;
 
 	return 0;
-
 }
 
 static int dt282x_ao_inttrig(struct comedi_device *dev,
diff --git a/drivers/staging/comedi/drivers/dt3000.c b/drivers/staging/comedi/drivers/dt3000.c
index 0aa5198..031282c 100644
--- a/drivers/staging/comedi/drivers/dt3000.c
+++ b/drivers/staging/comedi/drivers/dt3000.c
@@ -49,13 +49,10 @@ AO commands are not supported.
 */
 
 #include <linux/module.h>
-#include <linux/pci.h>
 #include <linux/delay.h>
 #include <linux/interrupt.h>
 
-#include "../comedidev.h"
-
-#include "comedi_fc.h"
+#include "../comedi_pci.h"
 
 static const struct comedi_lrange range_dt3000_ai = {
 	4, {
@@ -409,11 +406,11 @@ static int dt3k_ai_cmdtest(struct comedi_device *dev,
 
 	/* Step 1 : check if triggers are trivially valid */
 
-	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW);
-	err |= cfc_check_trigger_src(&cmd->scan_begin_src, TRIG_TIMER);
-	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_TIMER);
-	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT);
+	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW);
+	err |= comedi_check_trigger_src(&cmd->scan_begin_src, TRIG_TIMER);
+	err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_TIMER);
+	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT);
 
 	if (err)
 		return 1;
@@ -423,28 +420,29 @@ static int dt3k_ai_cmdtest(struct comedi_device *dev,
 
 	/* Step 3: check if arguments are trivially valid */
 
-	err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
 
 	if (cmd->scan_begin_src == TRIG_TIMER) {
-		err |= cfc_check_trigger_arg_min(&cmd->scan_begin_arg,
-						 this_board->ai_speed);
-		err |= cfc_check_trigger_arg_max(&cmd->scan_begin_arg,
-						 100 * 16 * 65535);
+		err |= comedi_check_trigger_arg_min(&cmd->scan_begin_arg,
+						    this_board->ai_speed);
+		err |= comedi_check_trigger_arg_max(&cmd->scan_begin_arg,
+						    100 * 16 * 65535);
 	}
 
 	if (cmd->convert_src == TRIG_TIMER) {
-		err |= cfc_check_trigger_arg_min(&cmd->convert_arg,
-						 this_board->ai_speed);
-		err |= cfc_check_trigger_arg_max(&cmd->convert_arg,
-						 50 * 16 * 65535);
+		err |= comedi_check_trigger_arg_min(&cmd->convert_arg,
+						    this_board->ai_speed);
+		err |= comedi_check_trigger_arg_max(&cmd->convert_arg,
+						    50 * 16 * 65535);
 	}
 
-	err |= cfc_check_trigger_arg_is(&cmd->scan_end_arg, cmd->chanlist_len);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
+					   cmd->chanlist_len);
 
 	if (cmd->stop_src == TRIG_COUNT)
-		err |= cfc_check_trigger_arg_max(&cmd->stop_arg, 0x00ffffff);
+		err |= comedi_check_trigger_arg_max(&cmd->stop_arg, 0x00ffffff);
 	else	/* TRIG_NONE */
-		err |= cfc_check_trigger_arg_is(&cmd->stop_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
 
 	if (err)
 		return 3;
@@ -454,18 +452,19 @@ static int dt3k_ai_cmdtest(struct comedi_device *dev,
 	if (cmd->scan_begin_src == TRIG_TIMER) {
 		arg = cmd->scan_begin_arg;
 		dt3k_ns_to_timer(100, &arg, cmd->flags);
-		err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, arg);
+		err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, arg);
 	}
 
 	if (cmd->convert_src == TRIG_TIMER) {
 		arg = cmd->convert_arg;
 		dt3k_ns_to_timer(50, &arg, cmd->flags);
-		err |= cfc_check_trigger_arg_is(&cmd->convert_arg, arg);
+		err |= comedi_check_trigger_arg_is(&cmd->convert_arg, arg);
 
 		if (cmd->scan_begin_src == TRIG_TIMER) {
 			arg = cmd->convert_arg * cmd->scan_end_arg;
-			err |= cfc_check_trigger_arg_min(&cmd->scan_begin_arg,
-							 arg);
+			err |= comedi_check_trigger_arg_min(&cmd->
+							    scan_begin_arg,
+							    arg);
 		}
 	}
 
diff --git a/drivers/staging/comedi/drivers/dyna_pci10xx.c b/drivers/staging/comedi/drivers/dyna_pci10xx.c
index 6c1e442..c9eb26f 100644
--- a/drivers/staging/comedi/drivers/dyna_pci10xx.c
+++ b/drivers/staging/comedi/drivers/dyna_pci10xx.c
@@ -34,10 +34,9 @@
 
 #include <linux/module.h>
 #include <linux/delay.h>
-#include <linux/pci.h>
 #include <linux/mutex.h>
 
-#include "../comedidev.h"
+#include "../comedi_pci.h"
 
 #define READ_TIMEOUT 50
 
@@ -70,8 +69,9 @@ static int dyna_pci10xx_ai_eoc(struct comedi_device *dev,
 }
 
 static int dyna_pci10xx_insn_read_ai(struct comedi_device *dev,
-			struct comedi_subdevice *s,
-			struct comedi_insn *insn, unsigned int *data)
+				     struct comedi_subdevice *s,
+				     struct comedi_insn *insn,
+				     unsigned int *data)
 {
 	struct dyna_pci10xx_private *devpriv = dev->private;
 	int n;
@@ -109,8 +109,9 @@ static int dyna_pci10xx_insn_read_ai(struct comedi_device *dev,
 
 /* analog output callback */
 static int dyna_pci10xx_insn_write_ao(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn, unsigned int *data)
+				      struct comedi_subdevice *s,
+				      struct comedi_insn *insn,
+				      unsigned int *data)
 {
 	struct dyna_pci10xx_private *devpriv = dev->private;
 	int n;
@@ -132,8 +133,9 @@ static int dyna_pci10xx_insn_write_ao(struct comedi_device *dev,
 
 /* digital input bit interface */
 static int dyna_pci10xx_di_insn_bits(struct comedi_device *dev,
-			      struct comedi_subdevice *s,
-			      struct comedi_insn *insn, unsigned int *data)
+				     struct comedi_subdevice *s,
+				     struct comedi_insn *insn,
+				     unsigned int *data)
 {
 	struct dyna_pci10xx_private *devpriv = dev->private;
 	u16 d = 0;
@@ -171,7 +173,7 @@ static int dyna_pci10xx_do_insn_bits(struct comedi_device *dev,
 }
 
 static int dyna_pci10xx_auto_attach(struct comedi_device *dev,
-					      unsigned long context_unused)
+				    unsigned long context_unused)
 {
 	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
 	struct dyna_pci10xx_private *devpriv;
diff --git a/drivers/staging/comedi/drivers/gsc_hpdi.c b/drivers/staging/comedi/drivers/gsc_hpdi.c
index deada97..3cb6409 100644
--- a/drivers/staging/comedi/drivers/gsc_hpdi.c
+++ b/drivers/staging/comedi/drivers/gsc_hpdi.c
@@ -41,14 +41,12 @@
  */
 
 #include <linux/module.h>
-#include <linux/pci.h>
 #include <linux/delay.h>
 #include <linux/interrupt.h>
 
-#include "../comedidev.h"
+#include "../comedi_pci.h"
 
 #include "plx9080.h"
-#include "comedi_fc.h"
 
 /*
  * PCI BAR2 Register map (dev->mmio)
@@ -386,18 +384,18 @@ static int gsc_hpdi_cmd_test(struct comedi_device *dev,
 
 	/* Step 1 : check if triggers are trivially valid */
 
-	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW);
-	err |= cfc_check_trigger_src(&cmd->scan_begin_src, TRIG_EXT);
-	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_NOW);
-	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
+	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW);
+	err |= comedi_check_trigger_src(&cmd->scan_begin_src, TRIG_EXT);
+	err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_NOW);
+	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
 	/* Step 2a : make sure trigger sources are unique */
 
-	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+	err |= comedi_check_trigger_is_unique(cmd->stop_src);
 
 	/* Step 2b : and mutually compatible */
 
@@ -406,18 +404,19 @@ static int gsc_hpdi_cmd_test(struct comedi_device *dev,
 
 	/* Step 3: check if arguments are trivially valid */
 
-	err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
 
 	if (!cmd->chanlist_len || !cmd->chanlist) {
 		cmd->chanlist_len = 32;
 		err |= -EINVAL;
 	}
-	err |= cfc_check_trigger_arg_is(&cmd->scan_end_arg, cmd->chanlist_len);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
+					   cmd->chanlist_len);
 
 	if (cmd->stop_src == TRIG_COUNT)
-		err |= cfc_check_trigger_arg_min(&cmd->stop_arg, 1);
+		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
 	else	/* TRIG_NONE */
-		err |= cfc_check_trigger_arg_is(&cmd->stop_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
 
 	if (err)
 		return 3;
@@ -433,7 +432,6 @@ static int gsc_hpdi_cmd_test(struct comedi_device *dev,
 		return 5;
 
 	return 0;
-
 }
 
 /* setup dma descriptors so a link completes every 'len' bytes */
diff --git a/drivers/staging/comedi/drivers/icp_multi.c b/drivers/staging/comedi/drivers/icp_multi.c
index 1ea1686..1e104eb 100644
--- a/drivers/staging/comedi/drivers/icp_multi.c
+++ b/drivers/staging/comedi/drivers/icp_multi.c
@@ -43,11 +43,10 @@ Configuration options: not applicable, uses PCI auto config
 */
 
 #include <linux/module.h>
-#include <linux/pci.h>
 #include <linux/delay.h>
 #include <linux/interrupt.h>
 
-#include "../comedidev.h"
+#include "../comedi_pci.h"
 
 #define ICP_MULTI_ADC_CSR	0	/* R/W: ADC command/status register */
 #define ICP_MULTI_AI		2	/* R:   Analogue input data */
@@ -370,7 +369,6 @@ static irqreturn_t interrupt_service_icp_multi(int irq, void *d)
 		break;
 	default:
 		break;
-
 	}
 
 	return IRQ_HANDLED;
@@ -445,7 +443,7 @@ static int icp_multi_reset(struct comedi_device *dev)
 }
 
 static int icp_multi_auto_attach(struct comedi_device *dev,
-					   unsigned long context_unused)
+				 unsigned long context_unused)
 {
 	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
 	struct icp_multi_private *devpriv;
diff --git a/drivers/staging/comedi/drivers/jr3_pci.c b/drivers/staging/comedi/drivers/jr3_pci.c
index 81fab2d..b87192e 100644
--- a/drivers/staging/comedi/drivers/jr3_pci.c
+++ b/drivers/staging/comedi/drivers/jr3_pci.c
@@ -39,14 +39,13 @@
 
 #include <linux/kernel.h>
 #include <linux/module.h>
-#include <linux/pci.h>
 #include <linux/delay.h>
 #include <linux/ctype.h>
 #include <linux/jiffies.h>
 #include <linux/slab.h>
 #include <linux/timer.h>
 
-#include "../comedidev.h"
+#include "../comedi_pci.h"
 
 #include "jr3_pci.h"
 
@@ -706,8 +705,6 @@ static int jr3_pci_auto_attach(struct comedi_device *dev,
 	if (!devpriv)
 		return -ENOMEM;
 
-	init_timer(&devpriv->timer);
-
 	ret = comedi_pci_enable(dev);
 	if (ret)
 		return ret;
@@ -775,8 +772,7 @@ static int jr3_pci_auto_attach(struct comedi_device *dev,
 		spriv->next_time_max = jiffies + msecs_to_jiffies(2000);
 	}
 
-	devpriv->timer.data = (unsigned long)dev;
-	devpriv->timer.function = jr3_pci_poll_dev;
+	setup_timer(&devpriv->timer, jr3_pci_poll_dev, (unsigned long)dev);
 	devpriv->timer.expires = jiffies + msecs_to_jiffies(1000);
 	add_timer(&devpriv->timer);
 
diff --git a/drivers/staging/comedi/drivers/ke_counter.c b/drivers/staging/comedi/drivers/ke_counter.c
index 3c19e0f..dc642ed 100644
--- a/drivers/staging/comedi/drivers/ke_counter.c
+++ b/drivers/staging/comedi/drivers/ke_counter.c
@@ -28,9 +28,8 @@
  */
 
 #include <linux/module.h>
-#include <linux/pci.h>
 
-#include "../comedidev.h"
+#include "../comedi_pci.h"
 
 /*
  * PCI BAR 0 Register I/O map
diff --git a/drivers/staging/comedi/drivers/me4000.c b/drivers/staging/comedi/drivers/me4000.c
index d120aa2..7a8c27d 100644
--- a/drivers/staging/comedi/drivers/me4000.c
+++ b/drivers/staging/comedi/drivers/me4000.c
@@ -41,14 +41,12 @@ broken.
  */
 
 #include <linux/module.h>
-#include <linux/pci.h>
 #include <linux/delay.h>
 #include <linux/interrupt.h>
 
-#include "../comedidev.h"
+#include "../comedi_pci.h"
 
-#include "comedi_fc.h"
-#include "8253.h"
+#include "comedi_8254.h"
 #include "plx9052.h"
 
 #define ME4000_FIRMWARE		"me4000_firmware.bin"
@@ -170,7 +168,6 @@ broken.
 
 struct me4000_info {
 	unsigned long plx_regbase;
-	unsigned long timer_regbase;
 };
 
 enum me4000_boardid {
@@ -424,7 +421,7 @@ static void me4000_reset(struct comedi_device *dev)
 
 	/* Set both stop bits in the analog input control register */
 	outl(ME4000_AI_CTRL_BIT_IMMEDIATE_STOP | ME4000_AI_CTRL_BIT_STOP,
-		dev->iobase + ME4000_AI_CTRL_REG);
+	     dev->iobase + ME4000_AI_CTRL_REG);
 
 	/* Set both stop bits in the analog output control register */
 	val = ME4000_AO_CTRL_BIT_IMMEDIATE_STOP | ME4000_AO_CTRL_BIT_STOP;
@@ -438,7 +435,7 @@ static void me4000_reset(struct comedi_device *dev)
 
 	/* Set the adustment register for AO demux */
 	outl(ME4000_AO_DEMUX_ADJUST_VALUE,
-		    dev->iobase + ME4000_AO_DEMUX_ADJUST_REG);
+	     dev->iobase + ME4000_AO_DEMUX_ADJUST_REG);
 
 	/*
 	 * Set digital I/O direction for port 0
@@ -609,7 +606,7 @@ static int me4000_ai_check_chanlist(struct comedi_device *dev,
 
 			if (!comedi_range_is_bipolar(s, range)) {
 				dev_dbg(dev->class_dev,
-				       "Bipolar is not selected in differential mode\n");
+					"Bipolar is not selected in differential mode\n");
 				return -EINVAL;
 			}
 		}
@@ -624,7 +621,6 @@ static int ai_round_cmd_args(struct comedi_device *dev,
 			     unsigned int *init_ticks,
 			     unsigned int *scan_ticks, unsigned int *chan_ticks)
 {
-
 	int rest;
 
 	*init_ticks = 0;
@@ -731,7 +727,6 @@ static int ai_prepare(struct comedi_device *dev,
 		      unsigned int init_ticks,
 		      unsigned int scan_ticks, unsigned int chan_ticks)
 {
-
 	unsigned int tmp = 0;
 
 	/* Write timer arguments */
@@ -772,12 +767,12 @@ static int ai_prepare(struct comedi_device *dev,
 	/* Stop triggers */
 	if (cmd->stop_src == TRIG_COUNT) {
 		outl(cmd->chanlist_len * cmd->stop_arg,
-			    dev->iobase + ME4000_AI_SAMPLE_COUNTER_REG);
+		     dev->iobase + ME4000_AI_SAMPLE_COUNTER_REG);
 		tmp |= ME4000_AI_CTRL_BIT_HF_IRQ | ME4000_AI_CTRL_BIT_SC_IRQ;
 	} else if (cmd->stop_src == TRIG_NONE &&
 		   cmd->scan_end_src == TRIG_COUNT) {
 		outl(cmd->scan_end_arg,
-			    dev->iobase + ME4000_AI_SAMPLE_COUNTER_REG);
+		     dev->iobase + ME4000_AI_SAMPLE_COUNTER_REG);
 		tmp |= ME4000_AI_CTRL_BIT_HF_IRQ | ME4000_AI_CTRL_BIT_SC_IRQ;
 	} else {
 		tmp |= ME4000_AI_CTRL_BIT_HF_IRQ;
@@ -827,7 +822,6 @@ static int me4000_ai_do_cmd_test(struct comedi_device *dev,
 				 struct comedi_subdevice *s,
 				 struct comedi_cmd *cmd)
 {
-
 	unsigned int init_ticks;
 	unsigned int chan_ticks;
 	unsigned int scan_ticks;
@@ -838,24 +832,25 @@ static int me4000_ai_do_cmd_test(struct comedi_device *dev,
 
 	/* Step 1 : check if triggers are trivially valid */
 
-	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_EXT);
-	err |= cfc_check_trigger_src(&cmd->scan_begin_src,
+	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_EXT);
+	err |= comedi_check_trigger_src(&cmd->scan_begin_src,
 					TRIG_FOLLOW | TRIG_TIMER | TRIG_EXT);
-	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_TIMER | TRIG_EXT);
-	err |= cfc_check_trigger_src(&cmd->scan_end_src,
+	err |= comedi_check_trigger_src(&cmd->convert_src,
+					TRIG_TIMER | TRIG_EXT);
+	err |= comedi_check_trigger_src(&cmd->scan_end_src,
 					TRIG_NONE | TRIG_COUNT);
-	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_NONE | TRIG_COUNT);
+	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_NONE | TRIG_COUNT);
 
 	if (err)
 		return 1;
 
 	/* Step 2a : make sure trigger sources are unique */
 
-	err |= cfc_check_trigger_is_unique(cmd->start_src);
-	err |= cfc_check_trigger_is_unique(cmd->scan_begin_src);
-	err |= cfc_check_trigger_is_unique(cmd->convert_src);
-	err |= cfc_check_trigger_is_unique(cmd->scan_end_src);
-	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+	err |= comedi_check_trigger_is_unique(cmd->start_src);
+	err |= comedi_check_trigger_is_unique(cmd->scan_begin_src);
+	err |= comedi_check_trigger_is_unique(cmd->convert_src);
+	err |= comedi_check_trigger_is_unique(cmd->scan_end_src);
+	err |= comedi_check_trigger_is_unique(cmd->stop_src);
 
 	/* Step 2b : and mutually compatible */
 
@@ -886,7 +881,7 @@ static int me4000_ai_do_cmd_test(struct comedi_device *dev,
 
 	/* Step 3: check if arguments are trivially valid */
 
-	err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
 
 	if (cmd->chanlist_len < 1) {
 		cmd->chanlist_len = 1;
@@ -906,9 +901,9 @@ static int me4000_ai_do_cmd_test(struct comedi_device *dev,
 	}
 
 	if (cmd->stop_src == TRIG_COUNT)
-		err |= cfc_check_trigger_arg_min(&cmd->stop_arg, 1);
+		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
 	else	/* TRIG_NONE */
-		err |= cfc_check_trigger_arg_is(&cmd->stop_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
 
 	if (err)
 		return 3;
@@ -919,7 +914,6 @@ static int me4000_ai_do_cmd_test(struct comedi_device *dev,
 	if (cmd->start_src == TRIG_NOW &&
 	    cmd->scan_begin_src == TRIG_TIMER &&
 	    cmd->convert_src == TRIG_TIMER) {
-
 		/* Check timer arguments */
 		if (init_ticks < ME4000_AI_MIN_TICKS) {
 			dev_err(dev->class_dev, "Invalid start arg\n");
@@ -941,7 +935,6 @@ static int me4000_ai_do_cmd_test(struct comedi_device *dev,
 	} else if (cmd->start_src == TRIG_NOW &&
 		   cmd->scan_begin_src == TRIG_FOLLOW &&
 		   cmd->convert_src == TRIG_TIMER) {
-
 		/* Check timer arguments */
 		if (init_ticks < ME4000_AI_MIN_TICKS) {
 			dev_err(dev->class_dev, "Invalid start arg\n");
@@ -956,7 +949,6 @@ static int me4000_ai_do_cmd_test(struct comedi_device *dev,
 	} else if (cmd->start_src == TRIG_EXT &&
 		   cmd->scan_begin_src == TRIG_TIMER &&
 		   cmd->convert_src == TRIG_TIMER) {
-
 		/* Check timer arguments */
 		if (init_ticks < ME4000_AI_MIN_TICKS) {
 			dev_err(dev->class_dev, "Invalid start arg\n");
@@ -978,7 +970,6 @@ static int me4000_ai_do_cmd_test(struct comedi_device *dev,
 	} else if (cmd->start_src == TRIG_EXT &&
 		   cmd->scan_begin_src == TRIG_FOLLOW &&
 		   cmd->convert_src == TRIG_TIMER) {
-
 		/* Check timer arguments */
 		if (init_ticks < ME4000_AI_MIN_TICKS) {
 			dev_err(dev->class_dev, "Invalid start arg\n");
@@ -993,7 +984,6 @@ static int me4000_ai_do_cmd_test(struct comedi_device *dev,
 	} else if (cmd->start_src == TRIG_EXT &&
 		   cmd->scan_begin_src == TRIG_EXT &&
 		   cmd->convert_src == TRIG_TIMER) {
-
 		/* Check timer arguments */
 		if (init_ticks < ME4000_AI_MIN_TICKS) {
 			dev_err(dev->class_dev, "Invalid start arg\n");
@@ -1008,7 +998,6 @@ static int me4000_ai_do_cmd_test(struct comedi_device *dev,
 	} else if (cmd->start_src == TRIG_EXT &&
 		   cmd->scan_begin_src == TRIG_EXT &&
 		   cmd->convert_src == TRIG_EXT) {
-
 		/* Check timer arguments */
 		if (init_ticks < ME4000_AI_MIN_TICKS) {
 			dev_err(dev->class_dev, "Invalid start arg\n");
@@ -1187,13 +1176,13 @@ static int me4000_dio_insn_bits(struct comedi_device *dev,
 {
 	if (comedi_dio_update_state(s, data)) {
 		outl((s->state >> 0) & 0xFF,
-			    dev->iobase + ME4000_DIO_PORT_0_REG);
+		     dev->iobase + ME4000_DIO_PORT_0_REG);
 		outl((s->state >> 8) & 0xFF,
-			    dev->iobase + ME4000_DIO_PORT_1_REG);
+		     dev->iobase + ME4000_DIO_PORT_1_REG);
 		outl((s->state >> 16) & 0xFF,
-			    dev->iobase + ME4000_DIO_PORT_2_REG);
+		     dev->iobase + ME4000_DIO_PORT_2_REG);
 		outl((s->state >> 24) & 0xFF,
-			    dev->iobase + ME4000_DIO_PORT_3_REG);
+		     dev->iobase + ME4000_DIO_PORT_3_REG);
 	}
 
 	data[1] = ((inl(dev->iobase + ME4000_DIO_PORT_0_REG) & 0xFF) << 0) |
@@ -1259,85 +1248,6 @@ static int me4000_dio_insn_config(struct comedi_device *dev,
 	return insn->n;
 }
 
-/*=============================================================================
-  Counter section
-  ===========================================================================*/
-
-static int me4000_cnt_insn_config(struct comedi_device *dev,
-				  struct comedi_subdevice *s,
-				  struct comedi_insn *insn,
-				  unsigned int *data)
-{
-	struct me4000_info *info = dev->private;
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	int err;
-
-	switch (data[0]) {
-	case GPCT_RESET:
-		if (insn->n != 1)
-			return -EINVAL;
-
-		err = i8254_set_mode(info->timer_regbase, 0, chan,
-				     I8254_MODE0 | I8254_BINARY);
-		if (err)
-			return err;
-		i8254_write(info->timer_regbase, 0, chan, 0);
-		break;
-	case GPCT_SET_OPERATION:
-		if (insn->n != 2)
-			return -EINVAL;
-
-		err = i8254_set_mode(info->timer_regbase, 0, chan,
-				(data[1] << 1) | I8254_BINARY);
-		if (err)
-			return err;
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	return insn->n;
-}
-
-static int me4000_cnt_insn_read(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn, unsigned int *data)
-{
-	struct me4000_info *info = dev->private;
-
-	if (insn->n == 0)
-		return 0;
-
-	if (insn->n > 1) {
-		dev_err(dev->class_dev, "Invalid instruction length %d\n",
-			insn->n);
-		return -EINVAL;
-	}
-
-	data[0] = i8254_read(info->timer_regbase, 0, insn->chanspec);
-
-	return 1;
-}
-
-static int me4000_cnt_insn_write(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn, unsigned int *data)
-{
-	struct me4000_info *info = dev->private;
-
-	if (insn->n == 0) {
-		return 0;
-	} else if (insn->n > 1) {
-		dev_err(dev->class_dev, "Invalid instruction length %d\n",
-			insn->n);
-		return -EINVAL;
-	}
-
-	i8254_write(info->timer_regbase, 0, insn->chanspec, data[0]);
-
-	return 1;
-}
-
 static int me4000_auto_attach(struct comedi_device *dev,
 			      unsigned long context)
 {
@@ -1364,8 +1274,7 @@ static int me4000_auto_attach(struct comedi_device *dev,
 
 	info->plx_regbase = pci_resource_start(pcidev, 1);
 	dev->iobase = pci_resource_start(pcidev, 2);
-	info->timer_regbase = pci_resource_start(pcidev, 3);
-	if (!info->plx_regbase || !dev->iobase || !info->timer_regbase)
+	if (!info->plx_regbase || !dev->iobase)
 		return -ENODEV;
 
 	result = comedi_load_firmware(dev, &pcidev->dev, ME4000_FIRMWARE,
@@ -1377,7 +1286,7 @@ static int me4000_auto_attach(struct comedi_device *dev,
 
 	if (pcidev->irq > 0) {
 		result = request_irq(pcidev->irq, me4000_ai_isr, IRQF_SHARED,
-				  dev->board_name, dev);
+				     dev->board_name, dev);
 		if (result == 0)
 			dev->irq = pcidev->irq;
 	}
@@ -1459,23 +1368,22 @@ static int me4000_auto_attach(struct comedi_device *dev,
 	if (!inl(dev->iobase + ME4000_DIO_DIR_REG)) {
 		s->io_bits |= 0xFF;
 		outl(ME4000_DIO_CTRL_BIT_MODE_0,
-			dev->iobase + ME4000_DIO_DIR_REG);
+		     dev->iobase + ME4000_DIO_DIR_REG);
 	}
 
-    /*=========================================================================
-      Counter subdevice
-      ========================================================================*/
-
+	/* Counter subdevice (8254) */
 	s = &dev->subdevices[3];
-
 	if (thisboard->has_counter) {
-		s->type = COMEDI_SUBD_COUNTER;
-		s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
-		s->n_chan = 3;
-		s->maxdata = 0xFFFF;	/*  16 bit counters */
-		s->insn_read = me4000_cnt_insn_read;
-		s->insn_write = me4000_cnt_insn_write;
-		s->insn_config = me4000_cnt_insn_config;
+		unsigned long timer_base = pci_resource_start(pcidev, 3);
+
+		if (!timer_base)
+			return -ENODEV;
+
+		dev->pacer = comedi_8254_init(timer_base, 0, I8254_IO8, 0);
+		if (!dev->pacer)
+			return -ENOMEM;
+
+		comedi_8254_subdevice_init(s, dev->pacer);
 	} else {
 		s->type = COMEDI_SUBD_UNUSED;
 	}
diff --git a/drivers/staging/comedi/drivers/me_daq.c b/drivers/staging/comedi/drivers/me_daq.c
index 92e2352..d78e919 100644
--- a/drivers/staging/comedi/drivers/me_daq.c
+++ b/drivers/staging/comedi/drivers/me_daq.c
@@ -30,11 +30,10 @@
  */
 
 #include <linux/module.h>
-#include <linux/pci.h>
 #include <linux/interrupt.h>
 #include <linux/sched.h>
 
-#include "../comedidev.h"
+#include "../comedi_pci.h"
 
 #include "plx9052.h"
 
diff --git a/drivers/staging/comedi/drivers/mf6x4.c b/drivers/staging/comedi/drivers/mf6x4.c
index db972bc..a675e2e 100644
--- a/drivers/staging/comedi/drivers/mf6x4.c
+++ b/drivers/staging/comedi/drivers/mf6x4.c
@@ -26,9 +26,9 @@
  */
 
 #include <linux/module.h>
-#include <linux/pci.h>
 #include <linux/delay.h>
-#include "../comedidev.h"
+
+#include "../comedi_pci.h"
 
 /* Registers present in BAR0 memory region */
 #define MF624_GPIOC_R					0x54
@@ -237,7 +237,6 @@ static int mf6x4_auto_attach(struct comedi_device *dev, unsigned long context)
 	else
 		devpriv->gpioc_R = devpriv->bar0_mem + MF624_GPIOC_R;
 
-
 	ret = comedi_alloc_subdevices(dev, 4);
 	if (ret)
 		return ret;
diff --git a/drivers/staging/comedi/drivers/mite.c b/drivers/staging/comedi/drivers/mite.c
index 1e537a5..e43a0c8 100644
--- a/drivers/staging/comedi/drivers/mite.c
+++ b/drivers/staging/comedi/drivers/mite.c
@@ -47,11 +47,9 @@
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
 #include <linux/module.h>
-#include <linux/pci.h>
 
-#include "../comedidev.h"
+#include "../comedi_pci.h"
 
-#include "comedi_fc.h"
 #include "mite.h"
 
 #define TOP_OF_PAGE(x) ((x)|(~(PAGE_MASK)))
@@ -186,10 +184,10 @@ struct mite_dma_descriptor_ring *mite_alloc_ring(struct mite_struct *mite)
 	struct mite_dma_descriptor_ring *ring =
 	    kmalloc(sizeof(struct mite_dma_descriptor_ring), GFP_KERNEL);
 
-	if (ring == NULL)
-		return ring;
+	if (!ring)
+		return NULL;
 	ring->hw_dev = get_device(&mite->pcidev->dev);
-	if (ring->hw_dev == NULL) {
+	if (!ring->hw_dev) {
 		kfree(ring);
 		return NULL;
 	}
diff --git a/drivers/staging/comedi/drivers/mite.h b/drivers/staging/comedi/drivers/mite.h
index b2b1204..b3ca7fc 100644
--- a/drivers/staging/comedi/drivers/mite.h
+++ b/drivers/staging/comedi/drivers/mite.h
@@ -19,10 +19,9 @@
 #ifndef _MITE_H_
 #define _MITE_H_
 
-#include <linux/pci.h>
 #include <linux/log2.h>
 #include <linux/slab.h>
-#include "../comedidev.h"
+#include "../comedi_pci.h"
 
 #define PCIMIO_COMPAT
 
diff --git a/drivers/staging/comedi/drivers/mpc624.c b/drivers/staging/comedi/drivers/mpc624.c
index 1241f99..0207b8e 100644
--- a/drivers/staging/comedi/drivers/mpc624.c
+++ b/drivers/staging/comedi/drivers/mpc624.c
@@ -115,7 +115,6 @@ Configuration Options:
 	(MPC624_OSR4 | MPC624_OSR3 | MPC624_OSR2 | MPC624_OSR1 | MPC624_OSR0)
 /* -------------------------------------------------------------------------- */
 struct mpc624_private {
-
 	/*  set by mpc624_attach() from driver's parameters */
 	unsigned long int ulConvertionRate;
 };
diff --git a/drivers/staging/comedi/drivers/ni_6527.c b/drivers/staging/comedi/drivers/ni_6527.c
index 530f716..62a817e 100644
--- a/drivers/staging/comedi/drivers/ni_6527.c
+++ b/drivers/staging/comedi/drivers/ni_6527.c
@@ -28,12 +28,9 @@
  */
 
 #include <linux/module.h>
-#include <linux/pci.h>
 #include <linux/interrupt.h>
 
-#include "../comedidev.h"
-
-#include "comedi_fc.h"
+#include "../comedi_pci.h"
 
 /*
  * PCI BAR1 - Register memory map
@@ -224,11 +221,11 @@ static int ni6527_intr_cmdtest(struct comedi_device *dev,
 
 	/* Step 1 : check if triggers are trivially valid */
 
-	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW);
-	err |= cfc_check_trigger_src(&cmd->scan_begin_src, TRIG_OTHER);
-	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_FOLLOW);
-	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT);
+	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW);
+	err |= comedi_check_trigger_src(&cmd->scan_begin_src, TRIG_OTHER);
+	err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_FOLLOW);
+	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT);
 
 	if (err)
 		return 1;
@@ -238,11 +235,12 @@ static int ni6527_intr_cmdtest(struct comedi_device *dev,
 
 	/* Step 3: check if arguments are trivially valid */
 
-	err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0);
-	err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
-	err |= cfc_check_trigger_arg_is(&cmd->convert_arg, 0);
-	err |= cfc_check_trigger_arg_is(&cmd->scan_end_arg, cmd->chanlist_len);
-	err |= cfc_check_trigger_arg_is(&cmd->stop_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->convert_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
+					   cmd->chanlist_len);
+	err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
 
 	if (err)
 		return 3;
diff --git a/drivers/staging/comedi/drivers/ni_65xx.c b/drivers/staging/comedi/drivers/ni_65xx.c
index 67cb758..800d574 100644
--- a/drivers/staging/comedi/drivers/ni_65xx.c
+++ b/drivers/staging/comedi/drivers/ni_65xx.c
@@ -57,12 +57,9 @@
  */
 
 #include <linux/module.h>
-#include <linux/pci.h>
 #include <linux/interrupt.h>
 
-#include "../comedidev.h"
-
-#include "comedi_fc.h"
+#include "../comedi_pci.h"
 
 /*
  * PCI BAR1 Register Map
@@ -508,11 +505,11 @@ static int ni_65xx_intr_cmdtest(struct comedi_device *dev,
 
 	/* Step 1 : check if triggers are trivially valid */
 
-	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW);
-	err |= cfc_check_trigger_src(&cmd->scan_begin_src, TRIG_OTHER);
-	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_FOLLOW);
-	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT);
+	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW);
+	err |= comedi_check_trigger_src(&cmd->scan_begin_src, TRIG_OTHER);
+	err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_FOLLOW);
+	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT);
 
 	if (err)
 		return 1;
@@ -522,11 +519,12 @@ static int ni_65xx_intr_cmdtest(struct comedi_device *dev,
 
 	/* Step 3: check if arguments are trivially valid */
 
-	err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0);
-	err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
-	err |= cfc_check_trigger_arg_is(&cmd->convert_arg, 0);
-	err |= cfc_check_trigger_arg_is(&cmd->scan_end_arg, cmd->chanlist_len);
-	err |= cfc_check_trigger_arg_is(&cmd->stop_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->convert_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
+					   cmd->chanlist_len);
+	err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
 
 	if (err)
 		return 3;
@@ -613,7 +611,7 @@ static int ni_65xx_intr_insn_config(struct comedi_device *dev,
 	return insn->n;
 }
 
-/* ripped from mite.h and mite_setup2() to avoid mite dependancy */
+/* ripped from mite.h and mite_setup2() to avoid mite dependency */
 #define MITE_IODWBSR	0xc0	 /* IO Device Window Base Size Register */
 #define WENAB		(1 << 7) /* window enable */
 
@@ -676,7 +674,7 @@ static int ni_65xx_auto_attach(struct comedi_device *dev,
 	}
 
 	dev_info(dev->class_dev, "board: %s, ID=0x%02x", dev->board_name,
-	       readb(dev->mmio + NI_65XX_ID_REG));
+		 readb(dev->mmio + NI_65XX_ID_REG));
 
 	ret = comedi_alloc_subdevices(dev, 4);
 	if (ret)
diff --git a/drivers/staging/comedi/drivers/ni_660x.c b/drivers/staging/comedi/drivers/ni_660x.c
index 1e4dd82..46647c6 100644
--- a/drivers/staging/comedi/drivers/ni_660x.c
+++ b/drivers/staging/comedi/drivers/ni_660x.c
@@ -35,12 +35,10 @@
  */
 
 #include <linux/module.h>
-#include <linux/pci.h>
 #include <linux/interrupt.h>
 
-#include "../comedidev.h"
+#include "../comedi_pci.h"
 
-#include "comedi_fc.h"
 #include "mite.h"
 #include "ni_tio.h"
 
@@ -195,7 +193,6 @@ static inline unsigned NI_660X_GPCT_SUBDEV(unsigned index)
 }
 
 struct NI_660xRegisterData {
-
 	const char *name;	/*  Register Name */
 	int offset;		/*  Offset from base address from GPCT chip */
 	enum ni_660x_register_direction direction;
@@ -702,7 +699,7 @@ static int ni_660x_request_mite_channel(struct comedi_device *dev,
 	BUG_ON(counter->mite_chan);
 	mite_chan = mite_request_channel(devpriv->mite,
 					 mite_ring(devpriv, counter));
-	if (mite_chan == NULL) {
+	if (!mite_chan) {
 		spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
 		dev_err(dev->class_dev,
 			"failed to reserve mite dma channel for counter\n");
@@ -861,7 +858,7 @@ static int ni_660x_alloc_mite_rings(struct comedi_device *dev)
 		for (j = 0; j < counters_per_chip; ++j) {
 			devpriv->mite_rings[i][j] =
 			    mite_alloc_ring(devpriv->mite);
-			if (devpriv->mite_rings[i][j] == NULL)
+			if (!devpriv->mite_rings[i][j])
 				return -ENOMEM;
 		}
 	}
@@ -1107,7 +1104,7 @@ static int ni_660x_auto_attach(struct comedi_device *dev,
 						     ni_gpct_variant_660x,
 						     ni_660x_num_counters
 						     (dev));
-	if (devpriv->counter_dev == NULL)
+	if (!devpriv->counter_dev)
 		return -ENOMEM;
 	for (i = 0; i < NI_660X_MAX_NUM_COUNTERS; ++i) {
 		s = &dev->subdevices[NI_660X_GPCT_SUBDEV(i)];
diff --git a/drivers/staging/comedi/drivers/ni_670x.c b/drivers/staging/comedi/drivers/ni_670x.c
index c42a81c..13c6ccb 100644
--- a/drivers/staging/comedi/drivers/ni_670x.c
+++ b/drivers/staging/comedi/drivers/ni_670x.c
@@ -37,11 +37,10 @@ Commands are not supported.
 */
 
 #include <linux/module.h>
-#include <linux/pci.h>
 #include <linux/interrupt.h>
 #include <linux/slab.h>
 
-#include "../comedidev.h"
+#include "../comedi_pci.h"
 
 #define AO_VALUE_OFFSET			0x00
 #define	AO_CHAN_OFFSET			0x0c
@@ -146,7 +145,7 @@ static int ni_670x_dio_insn_config(struct comedi_device *dev,
 	return insn->n;
 }
 
-/* ripped from mite.h and mite_setup2() to avoid mite dependancy */
+/* ripped from mite.h and mite_setup2() to avoid mite dependency */
 #define MITE_IODWBSR	0xc0	 /* IO Device Window Base Size Register */
 #define WENAB		(1 << 7) /* window enable */
 
diff --git a/drivers/staging/comedi/drivers/ni_at_a2150.c b/drivers/staging/comedi/drivers/ni_at_a2150.c
index a1ce0b0..3a972d1 100644
--- a/drivers/staging/comedi/drivers/ni_at_a2150.c
+++ b/drivers/staging/comedi/drivers/ni_at_a2150.c
@@ -67,8 +67,7 @@ TRIG_WAKE_EOS
 #include "../comedidev.h"
 
 #include "comedi_isadma.h"
-#include "comedi_fc.h"
-#include "8253.h"
+#include "comedi_8254.h"
 
 #define A2150_DMA_BUFFER_SIZE	0xff00	/*  size in bytes of dma buffer */
 
@@ -110,8 +109,6 @@ TRIG_WAKE_EOS
 #define   DMA_INTR_EN_BIT 		0x800	/*  enable interrupt on dma terminal count */
 #define   DMA_DEM_EN_BIT	0x1000	/*  enables demand mode dma */
 #define I8253_BASE_REG		0x14
-#define I8253_MODE_REG		0x17
-#define   HW_COUNT_DISABLE		0x30	/*  disable hardware counting of conversions */
 
 struct a2150_board {
 	const char *name;
@@ -422,19 +419,19 @@ static int a2150_ai_cmdtest(struct comedi_device *dev,
 
 	/* Step 1 : check if triggers are trivially valid */
 
-	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_EXT);
-	err |= cfc_check_trigger_src(&cmd->scan_begin_src, TRIG_TIMER);
-	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_NOW);
-	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
+	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_EXT);
+	err |= comedi_check_trigger_src(&cmd->scan_begin_src, TRIG_TIMER);
+	err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_NOW);
+	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
 	/* Step 2a : make sure trigger sources are unique */
 
-	err |= cfc_check_trigger_is_unique(cmd->start_src);
-	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+	err |= comedi_check_trigger_is_unique(cmd->start_src);
+	err |= comedi_check_trigger_is_unique(cmd->stop_src);
 
 	/* Step 2b : and mutually compatible */
 
@@ -443,19 +440,21 @@ static int a2150_ai_cmdtest(struct comedi_device *dev,
 
 	/* Step 3: check if arguments are trivially valid */
 
-	err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
 
-	if (cmd->convert_src == TRIG_TIMER)
-		err |= cfc_check_trigger_arg_min(&cmd->convert_arg,
-						 thisboard->ai_speed);
+	if (cmd->convert_src == TRIG_TIMER) {
+		err |= comedi_check_trigger_arg_min(&cmd->convert_arg,
+						    thisboard->ai_speed);
+	}
 
-	err |= cfc_check_trigger_arg_min(&cmd->chanlist_len, 1);
-	err |= cfc_check_trigger_arg_is(&cmd->scan_end_arg, cmd->chanlist_len);
+	err |= comedi_check_trigger_arg_min(&cmd->chanlist_len, 1);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
+					   cmd->chanlist_len);
 
 	if (cmd->stop_src == TRIG_COUNT)
-		err |= cfc_check_trigger_arg_min(&cmd->stop_arg, 1);
+		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
 	else	/* TRIG_NONE */
-		err |= cfc_check_trigger_arg_is(&cmd->stop_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
 
 	if (err)
 		return 3;
@@ -465,7 +464,7 @@ static int a2150_ai_cmdtest(struct comedi_device *dev,
 	if (cmd->scan_begin_src == TRIG_TIMER) {
 		arg = cmd->scan_begin_arg;
 		a2150_get_timing(dev, &arg, cmd->flags);
-		err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, arg);
+		err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, arg);
 	}
 
 	if (err)
@@ -488,7 +487,6 @@ static int a2150_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 	struct comedi_isadma_desc *desc = &dma->desc[0];
 	struct comedi_async *async = s->async;
 	struct comedi_cmd *cmd = &async->cmd;
-	unsigned long timer_base = dev->iobase + I8253_BASE_REG;
 	unsigned int old_config_bits = devpriv->config_bits;
 	unsigned int trigger_bits;
 
@@ -547,8 +545,7 @@ static int a2150_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 	outw(devpriv->irq_dma_bits, dev->iobase + IRQ_DMA_CNTRL_REG);
 
 	/*  may need to wait 72 sampling periods if timing was changed */
-	i8254_set_mode(timer_base, 0, 2, I8254_MODE0 | I8254_BINARY);
-	i8254_write(timer_base, 0, 2, 72);
+	comedi_8254_load(dev->pacer, 2, 72, I8254_MODE0 | I8254_BINARY);
 
 	/*  setup start triggering */
 	trigger_bits = 0;
@@ -726,6 +723,11 @@ static int a2150_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	/* an IRQ and DMA are required to support async commands */
 	a2150_alloc_irq_and_dma(dev, it);
 
+	dev->pacer = comedi_8254_init(dev->iobase + I8253_BASE_REG,
+				      0, I8254_IO8, 0);
+	if (!dev->pacer)
+		return -ENOMEM;
+
 	ret = comedi_alloc_subdevices(dev, 1);
 	if (ret)
 		return ret;
@@ -747,10 +749,6 @@ static int a2150_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		s->cancel = a2150_cancel;
 	}
 
-	/* need to do this for software counting of completed conversions, to
-	 * prevent hardware count from stopping acquisition */
-	outw(HW_COUNT_DISABLE, dev->iobase + I8253_MODE_REG);
-
 	/*  set card's irq and dma levels */
 	outw(devpriv->irq_dma_bits, dev->iobase + IRQ_DMA_CNTRL_REG);
 
diff --git a/drivers/staging/comedi/drivers/ni_at_ao.c b/drivers/staging/comedi/drivers/ni_at_ao.c
index 9eeaf3c..f27aa0e 100644
--- a/drivers/staging/comedi/drivers/ni_at_ao.c
+++ b/drivers/staging/comedi/drivers/ni_at_ao.c
@@ -37,7 +37,7 @@
 
 #include "../comedidev.h"
 
-#include "8253.h"
+#include "comedi_8254.h"
 
 /*
  * Register map
@@ -274,7 +274,6 @@ static int atao_calib_insn_write(struct comedi_device *dev,
 static void atao_reset(struct comedi_device *dev)
 {
 	struct atao_private *devpriv = dev->private;
-	unsigned long timer_base = dev->iobase + ATAO_82C53_BASE;
 
 	/* This is the reset sequence described in the manual */
 
@@ -282,9 +281,9 @@ static void atao_reset(struct comedi_device *dev)
 	outw(devpriv->cfg1, dev->iobase + ATAO_CFG1_REG);
 
 	/* Put outputs of counter 1 and counter 2 in a high state */
-	i8254_set_mode(timer_base, 0, 0, I8254_MODE4 | I8254_BINARY);
-	i8254_set_mode(timer_base, 0, 1, I8254_MODE4 | I8254_BINARY);
-	i8254_write(timer_base, 0, 0, 0x0003);
+	comedi_8254_set_mode(dev->pacer, 0, I8254_MODE4 | I8254_BINARY);
+	comedi_8254_set_mode(dev->pacer, 1, I8254_MODE4 | I8254_BINARY);
+	comedi_8254_write(dev->pacer, 0, 0x0003);
 
 	outw(ATAO_CFG2_CALLD_NOP, dev->iobase + ATAO_CFG2_REG);
 
@@ -315,6 +314,11 @@ static int atao_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	if (!devpriv)
 		return -ENOMEM;
 
+	dev->pacer = comedi_8254_init(dev->iobase + ATAO_82C53_BASE,
+				      0, I8254_IO8, 0);
+	if (!dev->pacer)
+		return -ENOMEM;
+
 	ret = comedi_alloc_subdevices(dev, 4);
 	if (ret)
 		return ret;
diff --git a/drivers/staging/comedi/drivers/ni_atmio.c b/drivers/staging/comedi/drivers/ni_atmio.c
index 301f154..1304b06 100644
--- a/drivers/staging/comedi/drivers/ni_atmio.c
+++ b/drivers/staging/comedi/drivers/ni_atmio.c
@@ -250,7 +250,7 @@ static int ni_isapnp_find_board(struct pnp_dev **dev)
 					  ISAPNP_FUNCTION(ni_boards[i].
 							  isapnp_id), NULL);
 
-		if (isapnp_dev == NULL || isapnp_dev->card == NULL)
+		if (!isapnp_dev || !isapnp_dev->card)
 			continue;
 
 		if (pnp_device_attach(isapnp_dev) < 0)
@@ -282,7 +282,6 @@ static int ni_getboardtype(struct comedi_device *dev)
 	for (i = 0; i < ARRAY_SIZE(ni_boards); i++) {
 		if (ni_boards[i].device_id == device_id)
 			return i;
-
 	}
 	if (device_id == 255)
 		dev_err(dev->class_dev, "can't find board\n");
@@ -355,7 +354,6 @@ static int ni_atmio_attach(struct comedi_device *dev,
 	if (ret < 0)
 		return ret;
 
-
 	return 0;
 }
 
diff --git a/drivers/staging/comedi/drivers/ni_atmio16d.c b/drivers/staging/comedi/drivers/ni_atmio16d.c
index c484c89..c3eb546 100644
--- a/drivers/staging/comedi/drivers/ni_atmio16d.c
+++ b/drivers/staging/comedi/drivers/ni_atmio16d.c
@@ -34,7 +34,6 @@ Devices: [National Instruments] AT-MIO-16 (atmio16), AT-MIO-16D (atmio16d)
 #include <linux/interrupt.h>
 #include "../comedidev.h"
 
-#include "comedi_fc.h"
 #include "8255.h"
 
 /* Configuration and Status Registers */
@@ -96,7 +95,6 @@ Devices: [National Instruments] AT-MIO-16 (atmio16), AT-MIO-16D (atmio16d)
 #define CLOCK_100_HZ	0x8F25
 
 struct atmio16_board_t {
-
 	const char *name;
 	int has_8255;
 };
@@ -234,20 +232,20 @@ static int atmio16d_ai_cmdtest(struct comedi_device *dev,
 
 	/* Step 1 : check if triggers are trivially valid */
 
-	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW);
-	err |= cfc_check_trigger_src(&cmd->scan_begin_src,
+	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW);
+	err |= comedi_check_trigger_src(&cmd->scan_begin_src,
 					TRIG_FOLLOW | TRIG_TIMER);
-	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_TIMER);
-	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
+	err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_TIMER);
+	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
 	/* Step 2a : make sure trigger sources are unique */
 
-	err |= cfc_check_trigger_is_unique(cmd->scan_begin_src);
-	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+	err |= comedi_check_trigger_is_unique(cmd->scan_begin_src);
+	err |= comedi_check_trigger_is_unique(cmd->stop_src);
 
 	/* Step 2b : and mutually compatible */
 
@@ -256,30 +254,31 @@ static int atmio16d_ai_cmdtest(struct comedi_device *dev,
 
 	/* Step 3: check if arguments are trivially valid */
 
-	err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
 
 	if (cmd->scan_begin_src == TRIG_FOLLOW) {
 		/* internal trigger */
-		err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
 	} else {
 #if 0
 		/* external trigger */
 		/* should be level/edge, hi/lo specification here */
-		err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
 #endif
 	}
 
-	err |= cfc_check_trigger_arg_min(&cmd->convert_arg, 10000);
+	err |= comedi_check_trigger_arg_min(&cmd->convert_arg, 10000);
 #if 0
-	err |= cfc_check_trigger_arg_max(&cmd->convert_arg, SLOWEST_TIMER);
+	err |= comedi_check_trigger_arg_max(&cmd->convert_arg, SLOWEST_TIMER);
 #endif
 
-	err |= cfc_check_trigger_arg_is(&cmd->scan_end_arg, cmd->chanlist_len);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
+					   cmd->chanlist_len);
 
 	if (cmd->stop_src == TRIG_COUNT)
-		err |= cfc_check_trigger_arg_min(&cmd->stop_arg, 1);
+		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
 	else	/* TRIG_NONE */
-		err |= cfc_check_trigger_arg_is(&cmd->stop_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
 
 	if (err)
 		return 3;
diff --git a/drivers/staging/comedi/drivers/ni_labpc.c b/drivers/staging/comedi/drivers/ni_labpc.c
index a916047..51e5e94 100644
--- a/drivers/staging/comedi/drivers/ni_labpc.c
+++ b/drivers/staging/comedi/drivers/ni_labpc.c
@@ -105,6 +105,7 @@ static int labpc_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 static void labpc_detach(struct comedi_device *dev)
 {
 	labpc_free_dma_chan(dev);
+	labpc_common_detach(dev);
 	comedi_legacy_detach(dev);
 }
 
diff --git a/drivers/staging/comedi/drivers/ni_labpc.h b/drivers/staging/comedi/drivers/ni_labpc.h
index be89ae4..83f878a 100644
--- a/drivers/staging/comedi/drivers/ni_labpc.h
+++ b/drivers/staging/comedi/drivers/ni_labpc.h
@@ -36,6 +36,7 @@ struct labpc_boardinfo {
 
 struct labpc_private {
 	struct comedi_isadma *dma;
+	struct comedi_8254 *counter;
 
 	/*  number of data points left to be taken */
 	unsigned long long count;
@@ -49,20 +50,6 @@ struct labpc_private {
 	/*  store last read of board status registers */
 	unsigned int stat1;
 	unsigned int stat2;
-	/*
-	 * value to load into board's counter a0 (conversion pacing) for timed
-	 * conversions
-	 */
-	unsigned int divisor_a0;
-	/*
-	 * value to load into board's counter b0 (master) for timed conversions
-	 */
-	unsigned int divisor_b0;
-	/*
-	 * value to load into board's counter b1 (scan pacing) for timed
-	 * conversions
-	 */
-	unsigned int divisor_b1;
 
 	/* we are using dma/fifo-half-full/etc. */
 	enum transfer_type current_transfer;
@@ -77,5 +64,6 @@ struct labpc_private {
 
 int labpc_common_attach(struct comedi_device *dev,
 			unsigned int irq, unsigned long isr_flags);
+void labpc_common_detach(struct comedi_device *dev);
 
 #endif /* _NI_LABPC_H */
diff --git a/drivers/staging/comedi/drivers/ni_labpc_common.c b/drivers/staging/comedi/drivers/ni_labpc_common.c
index b88ee26..863afb2 100644
--- a/drivers/staging/comedi/drivers/ni_labpc_common.c
+++ b/drivers/staging/comedi/drivers/ni_labpc_common.c
@@ -20,12 +20,12 @@
 #include <linux/interrupt.h>
 #include <linux/io.h>
 #include <linux/delay.h>
+#include <linux/slab.h>
 
 #include "../comedidev.h"
 
-#include "8253.h"
+#include "comedi_8254.h"
 #include "8255.h"
-#include "comedi_fc.h"
 #include "ni_labpc.h"
 #include "ni_labpc_regs.h"
 #include "ni_labpc_isadma.h"
@@ -108,32 +108,6 @@ static void labpc_writeb(struct comedi_device *dev,
 	writeb(byte, dev->mmio + reg);
 }
 
-static void labpc_counter_load(struct comedi_device *dev,
-			       unsigned long reg,
-			       unsigned int counter_number,
-			       unsigned int count,
-			       unsigned int mode)
-{
-	if (dev->mmio) {
-		i8254_mm_set_mode(dev->mmio + reg, 0, counter_number, mode);
-		i8254_mm_write(dev->mmio + reg, 0, counter_number, count);
-	} else {
-		i8254_set_mode(dev->iobase + reg, 0, counter_number, mode);
-		i8254_write(dev->iobase + reg, 0, counter_number, count);
-	}
-}
-
-static void labpc_counter_set_mode(struct comedi_device *dev,
-				   unsigned long reg,
-				   unsigned int counter_number,
-				   unsigned int mode)
-{
-	if (dev->mmio)
-		i8254_mm_set_mode(dev->mmio + reg, 0, counter_number, mode);
-	else
-		i8254_set_mode(dev->iobase + reg, 0, counter_number, mode);
-}
-
 static int labpc_cancel(struct comedi_device *dev, struct comedi_subdevice *s)
 {
 	struct labpc_private *devpriv = dev->private;
@@ -284,7 +258,7 @@ static int labpc_ai_insn_read(struct comedi_device *dev,
 	devpriv->write_byte(dev, devpriv->cmd4, CMD4_REG);
 
 	/* initialize pacer counter to prevent any problems */
-	labpc_counter_set_mode(dev, COUNTER_A_BASE_REG, 0, I8254_MODE2);
+	comedi_8254_set_mode(devpriv->counter, 0, I8254_MODE2 | I8254_BINARY);
 
 	labpc_clear_adc_fifo(dev);
 
@@ -367,83 +341,81 @@ static void labpc_set_ai_scan_period(struct comedi_cmd *cmd,
 static void labpc_adc_timing(struct comedi_device *dev, struct comedi_cmd *cmd,
 			     enum scan_mode mode)
 {
-	struct labpc_private *devpriv = dev->private;
+	struct comedi_8254 *pacer = dev->pacer;
+	unsigned int convert_period = labpc_ai_convert_period(cmd, mode);
+	unsigned int scan_period = labpc_ai_scan_period(cmd, mode);
 	unsigned int base_period;
-	unsigned int scan_period;
-	unsigned int convert_period;
 
 	/*
-	 * if both convert and scan triggers are TRIG_TIMER, then they
-	 * both rely on counter b0
+	 * If both convert and scan triggers are TRIG_TIMER, then they
+	 * both rely on counter b0. If only one TRIG_TIMER is used, we
+	 * can use the generic cascaded timing functions.
 	 */
-	convert_period = labpc_ai_convert_period(cmd, mode);
-	scan_period = labpc_ai_scan_period(cmd, mode);
 	if (convert_period && scan_period) {
 		/*
-		 * pick the lowest b0 divisor value we can (for maximum input
+		 * pick the lowest divisor value we can (for maximum input
 		 * clock speed on convert and scan counters)
 		 */
-		devpriv->divisor_b0 = (scan_period - 1) /
-		    (I8254_OSC_BASE_2MHZ * 0x10000) + 1;
+		pacer->next_div1 = (scan_period - 1) /
+				   (pacer->osc_base * I8254_MAX_COUNT) + 1;
 
-		cfc_check_trigger_arg_min(&devpriv->divisor_b0, 2);
-		cfc_check_trigger_arg_max(&devpriv->divisor_b0, 0x10000);
+		comedi_check_trigger_arg_min(&pacer->next_div1, 2);
+		comedi_check_trigger_arg_max(&pacer->next_div1,
+					     I8254_MAX_COUNT);
 
-		base_period = I8254_OSC_BASE_2MHZ * devpriv->divisor_b0;
+		base_period = pacer->osc_base * pacer->next_div1;
 
 		/*  set a0 for conversion frequency and b1 for scan frequency */
 		switch (cmd->flags & CMDF_ROUND_MASK) {
 		default:
 		case CMDF_ROUND_NEAREST:
-			devpriv->divisor_a0 = DIV_ROUND_CLOSEST(convert_period,
-								base_period);
-			devpriv->divisor_b1 = DIV_ROUND_CLOSEST(scan_period,
-								base_period);
+			pacer->next_div = DIV_ROUND_CLOSEST(convert_period,
+							    base_period);
+			pacer->next_div2 = DIV_ROUND_CLOSEST(scan_period,
+							     base_period);
 			break;
 		case CMDF_ROUND_UP:
-			devpriv->divisor_a0 = DIV_ROUND_UP(convert_period,
-							   base_period);
-			devpriv->divisor_b1 = DIV_ROUND_UP(scan_period,
-							   base_period);
+			pacer->next_div = DIV_ROUND_UP(convert_period,
+						       base_period);
+			pacer->next_div2 = DIV_ROUND_UP(scan_period,
+							base_period);
 			break;
 		case CMDF_ROUND_DOWN:
-			devpriv->divisor_a0 = convert_period / base_period;
-			devpriv->divisor_b1 = scan_period / base_period;
+			pacer->next_div = convert_period / base_period;
+			pacer->next_div2 = scan_period / base_period;
 			break;
 		}
 		/*  make sure a0 and b1 values are acceptable */
-		cfc_check_trigger_arg_min(&devpriv->divisor_a0, 2);
-		cfc_check_trigger_arg_max(&devpriv->divisor_a0, 0x10000);
-		cfc_check_trigger_arg_min(&devpriv->divisor_b1, 2);
-		cfc_check_trigger_arg_max(&devpriv->divisor_b1, 0x10000);
+		comedi_check_trigger_arg_min(&pacer->next_div, 2);
+		comedi_check_trigger_arg_max(&pacer->next_div, I8254_MAX_COUNT);
+		comedi_check_trigger_arg_min(&pacer->next_div2, 2);
+		comedi_check_trigger_arg_max(&pacer->next_div2,
+					     I8254_MAX_COUNT);
+
 		/*  write corrected timings to command */
 		labpc_set_ai_convert_period(cmd, mode,
-					    base_period * devpriv->divisor_a0);
+					    base_period * pacer->next_div);
 		labpc_set_ai_scan_period(cmd, mode,
-					 base_period * devpriv->divisor_b1);
-		/*
-		 * if only one TRIG_TIMER is used, we can employ the generic
-		 * cascaded timing functions
-		 */
+					 base_period * pacer->next_div2);
 	} else if (scan_period) {
 		/*
 		 * calculate cascaded counter values
 		 * that give desired scan timing
+		 * (pacer->next_div2 / pacer->next_div1)
 		 */
-		i8253_cascade_ns_to_timer(I8254_OSC_BASE_2MHZ,
-					  &devpriv->divisor_b1,
-					  &devpriv->divisor_b0,
-					  &scan_period, cmd->flags);
+		comedi_8254_cascade_ns_to_timer(pacer, &scan_period,
+						cmd->flags);
 		labpc_set_ai_scan_period(cmd, mode, scan_period);
 	} else if (convert_period) {
 		/*
 		 * calculate cascaded counter values
 		 * that give desired conversion timing
+		 * (pacer->next_div / pacer->next_div1)
 		 */
-		i8253_cascade_ns_to_timer(I8254_OSC_BASE_2MHZ,
-					  &devpriv->divisor_a0,
-					  &devpriv->divisor_b0,
-					  &convert_period, cmd->flags);
+		comedi_8254_cascade_ns_to_timer(pacer, &convert_period,
+						cmd->flags);
+		/* transfer div2 value so correct timer gets updated */
+		pacer->next_div = pacer->next_div2;
 		labpc_set_ai_convert_period(cmd, mode, convert_period);
 	}
 }
@@ -457,7 +429,7 @@ static enum scan_mode labpc_ai_scan_mode(const struct comedi_cmd *cmd)
 		return MODE_SINGLE_CHAN;
 
 	/* chanlist may be NULL during cmdtest */
-	if (cmd->chanlist == NULL)
+	if (!cmd->chanlist)
 		return MODE_MULT_CHAN_UP;
 
 	chan0 = CR_CHAN(cmd->chanlist[0]);
@@ -482,9 +454,6 @@ static int labpc_ai_check_chanlist(struct comedi_device *dev,
 	unsigned int aref0 = CR_AREF(cmd->chanlist[0]);
 	int i;
 
-	if (mode == MODE_SINGLE_CHAN)
-		return 0;
-
 	for (i = 0; i < cmd->chanlist_len; i++) {
 		unsigned int chan = CR_CHAN(cmd->chanlist[i]);
 		unsigned int range = CR_RANGE(cmd->chanlist[i]);
@@ -543,26 +512,27 @@ static int labpc_ai_cmdtest(struct comedi_device *dev,
 
 	/* Step 1 : check if triggers are trivially valid */
 
-	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_EXT);
-	err |= cfc_check_trigger_src(&cmd->scan_begin_src,
+	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_EXT);
+	err |= comedi_check_trigger_src(&cmd->scan_begin_src,
 					TRIG_TIMER | TRIG_FOLLOW | TRIG_EXT);
-	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_TIMER | TRIG_EXT);
-	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= comedi_check_trigger_src(&cmd->convert_src,
+					TRIG_TIMER | TRIG_EXT);
+	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
 
 	stop_mask = TRIG_COUNT | TRIG_NONE;
 	if (board->is_labpc1200)
 		stop_mask |= TRIG_EXT;
-	err |= cfc_check_trigger_src(&cmd->stop_src, stop_mask);
+	err |= comedi_check_trigger_src(&cmd->stop_src, stop_mask);
 
 	if (err)
 		return 1;
 
 	/* Step 2a : make sure trigger sources are unique */
 
-	err |= cfc_check_trigger_is_unique(cmd->start_src);
-	err |= cfc_check_trigger_is_unique(cmd->scan_begin_src);
-	err |= cfc_check_trigger_is_unique(cmd->convert_src);
-	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+	err |= comedi_check_trigger_is_unique(cmd->start_src);
+	err |= comedi_check_trigger_is_unique(cmd->scan_begin_src);
+	err |= comedi_check_trigger_is_unique(cmd->convert_src);
+	err |= comedi_check_trigger_is_unique(cmd->stop_src);
 
 	/* Step 2b : and mutually compatible */
 
@@ -577,7 +547,7 @@ static int labpc_ai_cmdtest(struct comedi_device *dev,
 
 	switch (cmd->start_src) {
 	case TRIG_NOW:
-		err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
 		break;
 	case TRIG_EXT:
 		/* start_arg value is ignored */
@@ -586,27 +556,33 @@ static int labpc_ai_cmdtest(struct comedi_device *dev,
 
 	if (!cmd->chanlist_len)
 		err |= -EINVAL;
-	err |= cfc_check_trigger_arg_is(&cmd->scan_end_arg, cmd->chanlist_len);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
+					   cmd->chanlist_len);
 
-	if (cmd->convert_src == TRIG_TIMER)
-		err |= cfc_check_trigger_arg_min(&cmd->convert_arg,
-						 board->ai_speed);
+	if (cmd->convert_src == TRIG_TIMER) {
+		err |= comedi_check_trigger_arg_min(&cmd->convert_arg,
+						    board->ai_speed);
+	}
 
 	/* make sure scan timing is not too fast */
 	if (cmd->scan_begin_src == TRIG_TIMER) {
-		if (cmd->convert_src == TRIG_TIMER)
-			err |= cfc_check_trigger_arg_min(&cmd->scan_begin_arg,
-					cmd->convert_arg * cmd->chanlist_len);
-		err |= cfc_check_trigger_arg_min(&cmd->scan_begin_arg,
-				board->ai_speed * cmd->chanlist_len);
+		if (cmd->convert_src == TRIG_TIMER) {
+			err |= comedi_check_trigger_arg_min(&cmd->
+							    scan_begin_arg,
+							    cmd->convert_arg *
+							    cmd->chanlist_len);
+		}
+		err |= comedi_check_trigger_arg_min(&cmd->scan_begin_arg,
+						    board->ai_speed *
+						    cmd->chanlist_len);
 	}
 
 	switch (cmd->stop_src) {
 	case TRIG_COUNT:
-		err |= cfc_check_trigger_arg_min(&cmd->stop_arg, 1);
+		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
 		break;
 	case TRIG_NONE:
-		err |= cfc_check_trigger_arg_is(&cmd->stop_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
 		break;
 		/*
 		 * TRIG_EXT doesn't care since it doesn't
@@ -670,11 +646,12 @@ static int labpc_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 		 * load counter a1 with count of 3
 		 * (pc+ manual says this is minimum allowed) using mode 0
 		 */
-		labpc_counter_load(dev, COUNTER_A_BASE_REG,
-				   1, 3, I8254_MODE0);
+		comedi_8254_load(devpriv->counter, 1,
+				 3, I8254_MODE0 | I8254_BINARY);
 	} else	{
 		/* just put counter a1 in mode 0 to set its output low */
-		labpc_counter_set_mode(dev, COUNTER_A_BASE_REG, 1, I8254_MODE0);
+		comedi_8254_set_mode(devpriv->counter, 1,
+				     I8254_MODE0 | I8254_BINARY);
 	}
 
 	/* figure out what method we will use to transfer data */
@@ -715,27 +692,24 @@ static int labpc_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 
 	if (cmd->convert_src == TRIG_TIMER ||
 	    cmd->scan_begin_src == TRIG_TIMER) {
-		/*  set up pacing */
-		labpc_adc_timing(dev, cmd, mode);
-		/*  load counter b0 in mode 3 */
-		labpc_counter_load(dev, COUNTER_B_BASE_REG,
-				   0, devpriv->divisor_b0, I8254_MODE3);
-	}
-	/*  set up conversion pacing */
-	if (labpc_ai_convert_period(cmd, mode)) {
-		/*  load counter a0 in mode 2 */
-		labpc_counter_load(dev, COUNTER_A_BASE_REG,
-				   0, devpriv->divisor_a0, I8254_MODE2);
-	} else {
-		/* initialize pacer counter to prevent any problems */
-		labpc_counter_set_mode(dev, COUNTER_A_BASE_REG, 0, I8254_MODE2);
-	}
+		struct comedi_8254 *pacer = dev->pacer;
+		struct comedi_8254 *counter = devpriv->counter;
+
+		comedi_8254_update_divisors(pacer);
 
-	/*  set up scan pacing */
-	if (labpc_ai_scan_period(cmd, mode)) {
-		/*  load counter b1 in mode 2 */
-		labpc_counter_load(dev, COUNTER_B_BASE_REG,
-				   1, devpriv->divisor_b1, I8254_MODE2);
+		/* set up pacing */
+		comedi_8254_load(pacer, 0, pacer->divisor1,
+				 I8254_MODE3 | I8254_BINARY);
+
+		/* set up conversion pacing */
+		comedi_8254_set_mode(counter, 0, I8254_MODE2 | I8254_BINARY);
+		if (labpc_ai_convert_period(cmd, mode))
+			comedi_8254_write(counter, 0, pacer->divisor);
+
+		/* set up scan pacing */
+		if (labpc_ai_scan_period(cmd, mode))
+			comedi_8254_load(pacer, 1, pacer->divisor2,
+					 I8254_MODE2 | I8254_BINARY);
 	}
 
 	labpc_clear_adc_fifo(dev);
@@ -1240,6 +1214,26 @@ int labpc_common_attach(struct comedi_device *dev,
 			dev->irq = irq;
 	}
 
+	if (dev->mmio) {
+		dev->pacer = comedi_8254_mm_init(dev->mmio + COUNTER_B_BASE_REG,
+						 I8254_OSC_BASE_2MHZ,
+						 I8254_IO8, 0);
+		devpriv->counter = comedi_8254_mm_init(dev->mmio +
+						       COUNTER_A_BASE_REG,
+						       I8254_OSC_BASE_2MHZ,
+						       I8254_IO8, 0);
+	} else {
+		dev->pacer = comedi_8254_init(dev->iobase + COUNTER_B_BASE_REG,
+					      I8254_OSC_BASE_2MHZ,
+					      I8254_IO8, 0);
+		devpriv->counter = comedi_8254_init(dev->iobase +
+						    COUNTER_A_BASE_REG,
+						    I8254_OSC_BASE_2MHZ,
+						    I8254_IO8, 0);
+	}
+	if (!dev->pacer || !devpriv->counter)
+		return -ENOMEM;
+
 	ret = comedi_alloc_subdevices(dev, 5);
 	if (ret)
 		return ret;
@@ -1336,6 +1330,15 @@ int labpc_common_attach(struct comedi_device *dev,
 }
 EXPORT_SYMBOL_GPL(labpc_common_attach);
 
+void labpc_common_detach(struct comedi_device *dev)
+{
+	struct labpc_private *devpriv = dev->private;
+
+	if (devpriv)
+		kfree(devpriv->counter);
+}
+EXPORT_SYMBOL_GPL(labpc_common_detach);
+
 static int __init labpc_common_init(void)
 {
 	return 0;
diff --git a/drivers/staging/comedi/drivers/ni_labpc_cs.c b/drivers/staging/comedi/drivers/ni_labpc_cs.c
index 746c4cd9..a1c69ac 100644
--- a/drivers/staging/comedi/drivers/ni_labpc_cs.c
+++ b/drivers/staging/comedi/drivers/ni_labpc_cs.c
@@ -68,8 +68,8 @@ static const struct labpc_boardinfo labpc_cs_boards[] = {
 	},
 };
 
-static int labpc_auto_attach(struct comedi_device *dev,
-			     unsigned long context)
+static int labpc_cs_auto_attach(struct comedi_device *dev,
+				unsigned long context)
 {
 	struct pcmcia_device *link = comedi_to_pcmcia_dev(dev);
 	int ret;
@@ -90,11 +90,17 @@ static int labpc_auto_attach(struct comedi_device *dev,
 	return labpc_common_attach(dev, link->irq, IRQF_SHARED);
 }
 
+static void labpc_cs_detach(struct comedi_device *dev)
+{
+	labpc_common_detach(dev);
+	comedi_pcmcia_disable(dev);
+}
+
 static struct comedi_driver driver_labpc_cs = {
 	.driver_name	= "ni_labpc_cs",
 	.module		= THIS_MODULE,
-	.auto_attach	= labpc_auto_attach,
-	.detach		= comedi_pcmcia_disable,
+	.auto_attach	= labpc_cs_auto_attach,
+	.detach		= labpc_cs_detach,
 };
 
 static int labpc_cs_attach(struct pcmcia_device *link)
diff --git a/drivers/staging/comedi/drivers/ni_labpc_isadma.c b/drivers/staging/comedi/drivers/ni_labpc_isadma.c
index 6b4ccd8..29dbdf5 100644
--- a/drivers/staging/comedi/drivers/ni_labpc_isadma.c
+++ b/drivers/staging/comedi/drivers/ni_labpc_isadma.c
@@ -23,7 +23,6 @@
 #include "../comedidev.h"
 
 #include "comedi_isadma.h"
-#include "comedi_fc.h"
 #include "ni_labpc.h"
 #include "ni_labpc_regs.h"
 #include "ni_labpc_isadma.h"
diff --git a/drivers/staging/comedi/drivers/ni_labpc_pci.c b/drivers/staging/comedi/drivers/ni_labpc_pci.c
index 0407ff6..77d4038 100644
--- a/drivers/staging/comedi/drivers/ni_labpc_pci.c
+++ b/drivers/staging/comedi/drivers/ni_labpc_pci.c
@@ -31,9 +31,8 @@
 
 #include <linux/module.h>
 #include <linux/interrupt.h>
-#include <linux/pci.h>
 
-#include "../comedidev.h"
+#include "../comedi_pci.h"
 
 #include "ni_labpc.h"
 
@@ -51,7 +50,7 @@ static const struct labpc_boardinfo labpc_pci_boards[] = {
 	},
 };
 
-/* ripped from mite.h and mite_setup2() to avoid mite dependancy */
+/* ripped from mite.h and mite_setup2() to avoid mite dependency */
 #define MITE_IODWBSR	0xc0	 /* IO Device Window Base Size Register */
 #define WENAB		(1 << 7) /* window enable */
 
@@ -103,11 +102,17 @@ static int labpc_pci_auto_attach(struct comedi_device *dev,
 	return labpc_common_attach(dev, pcidev->irq, IRQF_SHARED);
 }
 
+static void labpc_pci_detach(struct comedi_device *dev)
+{
+	labpc_common_detach(dev);
+	comedi_pci_detach(dev);
+}
+
 static struct comedi_driver labpc_pci_comedi_driver = {
 	.driver_name	= "labpc_pci",
 	.module		= THIS_MODULE,
 	.auto_attach	= labpc_pci_auto_attach,
-	.detach		= comedi_pci_detach,
+	.detach		= labpc_pci_detach,
 };
 
 static const struct pci_device_id labpc_pci_table[] = {
diff --git a/drivers/staging/comedi/drivers/ni_mio_common.c b/drivers/staging/comedi/drivers/ni_mio_common.c
index b6ddc01..c66affd9 100644
--- a/drivers/staging/comedi/drivers/ni_mio_common.c
+++ b/drivers/staging/comedi/drivers/ni_mio_common.c
@@ -57,7 +57,6 @@
 #include <linux/delay.h>
 #include "8255.h"
 #include "mite.h"
-#include "comedi_fc.h"
 
 /* A timeout count */
 #define NI_TIMEOUT 1000
@@ -670,8 +669,8 @@ static inline void ni_set_bitfield(struct comedi_device *dev, int reg,
 		ni_writeb(dev, devpriv->g0_g1_select_reg, G0_G1_Select);
 		break;
 	default:
-		dev_err(dev->class_dev,
-			"%s called with invalid register %d\n", __func__, reg);
+		dev_err(dev->class_dev, "called with invalid register %d\n",
+			reg);
 		break;
 	}
 	mmiowb();
@@ -755,7 +754,7 @@ static int ni_request_ai_mite_channel(struct comedi_device *dev)
 	BUG_ON(devpriv->ai_mite_chan);
 	devpriv->ai_mite_chan =
 	    mite_request_channel(devpriv->mite, devpriv->ai_mite_ring);
-	if (devpriv->ai_mite_chan == NULL) {
+	if (!devpriv->ai_mite_chan) {
 		spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
 		dev_err(dev->class_dev,
 			"failed to reserve mite dma channel for analog input\n");
@@ -776,7 +775,7 @@ static int ni_request_ao_mite_channel(struct comedi_device *dev)
 	BUG_ON(devpriv->ao_mite_chan);
 	devpriv->ao_mite_chan =
 	    mite_request_channel(devpriv->mite, devpriv->ao_mite_ring);
-	if (devpriv->ao_mite_chan == NULL) {
+	if (!devpriv->ao_mite_chan) {
 		spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
 		dev_err(dev->class_dev,
 			"failed to reserve mite dma channel for analog outut\n");
@@ -802,7 +801,7 @@ static int ni_request_gpct_mite_channel(struct comedi_device *dev,
 	mite_chan =
 	    mite_request_channel(devpriv->mite,
 				 devpriv->gpct_mite_ring[gpct_index]);
-	if (mite_chan == NULL) {
+	if (!mite_chan) {
 		spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
 		dev_err(dev->class_dev,
 			"failed to reserve mite dma channel for counter\n");
@@ -828,7 +827,7 @@ static int ni_request_cdo_mite_channel(struct comedi_device *dev)
 	BUG_ON(devpriv->cdo_mite_chan);
 	devpriv->cdo_mite_chan =
 	    mite_request_channel(devpriv->mite, devpriv->cdo_mite_ring);
-	if (devpriv->cdo_mite_chan == NULL) {
+	if (!devpriv->cdo_mite_chan) {
 		spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
 		dev_err(dev->class_dev,
 			"failed to reserve mite dma channel for correlated digital output\n");
@@ -1068,7 +1067,7 @@ static int ni_ai_drain_dma(struct comedi_device *dev)
 			udelay(5);
 		}
 		if (i == timeout) {
-			dev_err(dev->class_dev, "%s timed out\n", __func__);
+			dev_err(dev->class_dev, "timed out\n");
 			dev_err(dev->class_dev,
 				"mite_bytes_in_transit=%i, AI_Status1_Register=0x%x\n",
 				mite_bytes_in_transit(devpriv->ai_mite_chan),
@@ -1360,7 +1359,7 @@ static void get_last_sample_611x(struct comedi_device *dev)
 	/* Check if there's a single sample stuck in the FIFO */
 	if (ni_readb(dev, XXX_Status) & 0x80) {
 		dl = ni_readl(dev, ADC_FIFO_Data_611x);
-		data = (dl & 0xffff);
+		data = dl & 0xffff;
 		comedi_buf_write_samples(s, &data, 1);
 	}
 }
@@ -1657,7 +1656,7 @@ static int ni_ai_setup_MITE_dma(struct comedi_device *dev)
 	comedi_buf_write_alloc(s, s->async->prealloc_bufsz);
 
 	spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
-	if (devpriv->ai_mite_chan == NULL) {
+	if (!devpriv->ai_mite_chan) {
 		spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
 		return -EIO;
 	}
@@ -1700,8 +1699,9 @@ static int ni_ao_setup_MITE_dma(struct comedi_device *dev)
 			mite_prep_dma(devpriv->ao_mite_chan, 16, 32);
 		}
 		mite_dma_arm(devpriv->ao_mite_chan);
-	} else
+	} else {
 		retval = -EIO;
+	}
 	spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
 
 	return retval;
@@ -1870,7 +1870,7 @@ static void ni_m_series_load_channelgain_list(struct comedi_device *dev,
 		chan = CR_CHAN(list[0]);
 		range = CR_RANGE(list[0]);
 		range_code = ni_gainlkup[board->gainlkup][range];
-		dither = ((list[0] & CR_ALT_FILTER) != 0);
+		dither = (list[0] & CR_ALT_FILTER) != 0;
 		bypass_bits = MSeries_AI_Bypass_Config_FIFO_Bit;
 		bypass_bits |= chan;
 		bypass_bits |=
@@ -1894,7 +1894,7 @@ static void ni_m_series_load_channelgain_list(struct comedi_device *dev,
 		chan = CR_CHAN(list[i]);
 		aref = CR_AREF(list[i]);
 		range = CR_RANGE(list[i]);
-		dither = ((list[i] & CR_ALT_FILTER) != 0);
+		dither = (list[i] & CR_ALT_FILTER) != 0;
 
 		range_code = ni_gainlkup[board->gainlkup][range];
 		devpriv->ai_offset[i] = 0;
@@ -2020,7 +2020,7 @@ static void ni_load_channelgain_list(struct comedi_device *dev,
 			chan = CR_CHAN(list[i]);
 		aref = CR_AREF(list[i]);
 		range = CR_RANGE(list[i]);
-		dither = ((list[i] & CR_ALT_FILTER) != 0);
+		dither = (list[i] & CR_ALT_FILTER) != 0;
 
 		/* fix the external/internal range differences */
 		range = ni_gainlkup[board->gainlkup][range];
@@ -2116,8 +2116,7 @@ static int ni_ai_insn_read(struct comedi_device *dev,
 				}
 			}
 			if (i == NI_TIMEOUT) {
-				dev_err(dev->class_dev, "%s timeout\n",
-					__func__);
+				dev_err(dev->class_dev, "timeout\n");
 				return -ETIME;
 			}
 			d += signbits;
@@ -2140,8 +2139,7 @@ static int ni_ai_insn_read(struct comedi_device *dev,
 				}
 			}
 			if (i == NI_TIMEOUT) {
-				dev_err(dev->class_dev, "%s timeout\n",
-					__func__);
+				dev_err(dev->class_dev, "timeout\n");
 				return -ETIME;
 			}
 			data[n] = (((dl >> 16) & 0xFFFF) + signbits) & 0xFFFF;
@@ -2156,8 +2154,7 @@ static int ni_ai_insn_read(struct comedi_device *dev,
 					break;
 			}
 			if (i == NI_TIMEOUT) {
-				dev_err(dev->class_dev, "%s timeout\n",
-					__func__);
+				dev_err(dev->class_dev, "timeout\n");
 				return -ETIME;
 			}
 			if (devpriv->is_m_series) {
@@ -2227,28 +2224,28 @@ static int ni_ai_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s,
 
 	/* Step 1 : check if triggers are trivially valid */
 
-	err |= cfc_check_trigger_src(&cmd->start_src,
+	err |= comedi_check_trigger_src(&cmd->start_src,
 					TRIG_NOW | TRIG_INT | TRIG_EXT);
-	err |= cfc_check_trigger_src(&cmd->scan_begin_src,
+	err |= comedi_check_trigger_src(&cmd->scan_begin_src,
 					TRIG_TIMER | TRIG_EXT);
 
 	sources = TRIG_TIMER | TRIG_EXT;
 	if (devpriv->is_611x || devpriv->is_6143)
 		sources |= TRIG_NOW;
-	err |= cfc_check_trigger_src(&cmd->convert_src, sources);
+	err |= comedi_check_trigger_src(&cmd->convert_src, sources);
 
-	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
+	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
 	/* Step 2a : make sure trigger sources are unique */
 
-	err |= cfc_check_trigger_is_unique(cmd->start_src);
-	err |= cfc_check_trigger_is_unique(cmd->scan_begin_src);
-	err |= cfc_check_trigger_is_unique(cmd->convert_src);
-	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+	err |= comedi_check_trigger_is_unique(cmd->start_src);
+	err |= comedi_check_trigger_is_unique(cmd->scan_begin_src);
+	err |= comedi_check_trigger_is_unique(cmd->convert_src);
+	err |= comedi_check_trigger_is_unique(cmd->stop_src);
 
 	/* Step 2b : and mutually compatible */
 
@@ -2260,7 +2257,7 @@ static int ni_ai_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s,
 	switch (cmd->start_src) {
 	case TRIG_NOW:
 	case TRIG_INT:
-		err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
 		break;
 	case TRIG_EXT:
 		tmp = CR_CHAN(cmd->start_arg);
@@ -2268,15 +2265,16 @@ static int ni_ai_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s,
 		if (tmp > 16)
 			tmp = 16;
 		tmp |= (cmd->start_arg & (CR_INVERT | CR_EDGE));
-		err |= cfc_check_trigger_arg_is(&cmd->start_arg, tmp);
+		err |= comedi_check_trigger_arg_is(&cmd->start_arg, tmp);
 		break;
 	}
 
 	if (cmd->scan_begin_src == TRIG_TIMER) {
-		err |= cfc_check_trigger_arg_min(&cmd->scan_begin_arg,
+		err |= comedi_check_trigger_arg_min(&cmd->scan_begin_arg,
 			ni_min_ai_scan_period_ns(dev, cmd->chanlist_len));
-		err |= cfc_check_trigger_arg_max(&cmd->scan_begin_arg,
-						 devpriv->clock_ns * 0xffffff);
+		err |= comedi_check_trigger_arg_max(&cmd->scan_begin_arg,
+						    devpriv->clock_ns *
+						    0xffffff);
 	} else if (cmd->scan_begin_src == TRIG_EXT) {
 		/* external trigger */
 		unsigned int tmp = CR_CHAN(cmd->scan_begin_arg);
@@ -2284,19 +2282,21 @@ static int ni_ai_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s,
 		if (tmp > 16)
 			tmp = 16;
 		tmp |= (cmd->scan_begin_arg & (CR_INVERT | CR_EDGE));
-		err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, tmp);
+		err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, tmp);
 	} else {		/* TRIG_OTHER */
-		err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
 	}
 
 	if (cmd->convert_src == TRIG_TIMER) {
 		if (devpriv->is_611x || devpriv->is_6143) {
-			err |= cfc_check_trigger_arg_is(&cmd->convert_arg, 0);
+			err |= comedi_check_trigger_arg_is(&cmd->convert_arg,
+							   0);
 		} else {
-			err |= cfc_check_trigger_arg_min(&cmd->convert_arg,
-							 board->ai_speed);
-			err |= cfc_check_trigger_arg_max(&cmd->convert_arg,
-						devpriv->clock_ns * 0xffff);
+			err |= comedi_check_trigger_arg_min(&cmd->convert_arg,
+							    board->ai_speed);
+			err |= comedi_check_trigger_arg_max(&cmd->convert_arg,
+							    devpriv->clock_ns *
+							    0xffff);
 		}
 	} else if (cmd->convert_src == TRIG_EXT) {
 		/* external trigger */
@@ -2305,23 +2305,24 @@ static int ni_ai_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s,
 		if (tmp > 16)
 			tmp = 16;
 		tmp |= (cmd->convert_arg & (CR_ALT_FILTER | CR_INVERT));
-		err |= cfc_check_trigger_arg_is(&cmd->convert_arg, tmp);
+		err |= comedi_check_trigger_arg_is(&cmd->convert_arg, tmp);
 	} else if (cmd->convert_src == TRIG_NOW) {
-		err |= cfc_check_trigger_arg_is(&cmd->convert_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->convert_arg, 0);
 	}
 
-	err |= cfc_check_trigger_arg_is(&cmd->scan_end_arg, cmd->chanlist_len);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
+					   cmd->chanlist_len);
 
 	if (cmd->stop_src == TRIG_COUNT) {
 		unsigned int max_count = 0x01000000;
 
 		if (devpriv->is_611x)
 			max_count -= num_adc_stages_611x;
-		err |= cfc_check_trigger_arg_max(&cmd->stop_arg, max_count);
-		err |= cfc_check_trigger_arg_min(&cmd->stop_arg, 1);
+		err |= comedi_check_trigger_arg_max(&cmd->stop_arg, max_count);
+		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
 	} else {
 		/* TRIG_NONE */
-		err |= cfc_check_trigger_arg_is(&cmd->stop_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
 	}
 
 	if (err)
@@ -2529,7 +2530,7 @@ static int ni_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 		start_stop_select |=
 		    AI_START_Select(1 + CR_CHAN(cmd->scan_begin_arg));
 		ni_stc_writew(dev, start_stop_select,
-				    AI_START_STOP_Select_Register);
+			      AI_START_STOP_Select_Register);
 		break;
 	}
 
@@ -2572,7 +2573,6 @@ static int ni_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 	}
 
 	if (dev->irq) {
-
 		/* interrupt on FIFO, errors, SC_TC */
 		interrupt_a_enable |= AI_Error_Interrupt_Enable |
 		    AI_SC_TC_Interrupt_Enable;
@@ -2808,8 +2808,7 @@ static int ni_m_series_ao_config_chanlist(struct comedi_device *dev,
 			break;
 		default:
 			dev_err(dev->class_dev,
-				"%s: bug! unhandled ao reference voltage\n",
-				__func__);
+				"bug! unhandled ao reference voltage\n");
 			break;
 		}
 		switch (krange->max + krange->min) {
@@ -2821,8 +2820,7 @@ static int ni_m_series_ao_config_chanlist(struct comedi_device *dev,
 			break;
 		default:
 			dev_err(dev->class_dev,
-				"%s: bug! unhandled ao offset voltage\n",
-				__func__);
+				"bug! unhandled ao offset voltage\n");
 			break;
 		}
 		if (timed)
@@ -3262,21 +3260,21 @@ static int ni_ao_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s,
 
 	/* Step 1 : check if triggers are trivially valid */
 
-	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_INT | TRIG_EXT);
-	err |= cfc_check_trigger_src(&cmd->scan_begin_src,
+	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_INT | TRIG_EXT);
+	err |= comedi_check_trigger_src(&cmd->scan_begin_src,
 					TRIG_TIMER | TRIG_EXT);
-	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_NOW);
-	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
+	err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_NOW);
+	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
 	/* Step 2a : make sure trigger sources are unique */
 
-	err |= cfc_check_trigger_is_unique(cmd->start_src);
-	err |= cfc_check_trigger_is_unique(cmd->scan_begin_src);
-	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+	err |= comedi_check_trigger_is_unique(cmd->start_src);
+	err |= comedi_check_trigger_is_unique(cmd->scan_begin_src);
+	err |= comedi_check_trigger_is_unique(cmd->stop_src);
 
 	/* Step 2b : and mutually compatible */
 
@@ -3287,7 +3285,7 @@ static int ni_ao_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s,
 
 	switch (cmd->start_src) {
 	case TRIG_INT:
-		err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
 		break;
 	case TRIG_EXT:
 		tmp = CR_CHAN(cmd->start_arg);
@@ -3295,24 +3293,26 @@ static int ni_ao_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s,
 		if (tmp > 18)
 			tmp = 18;
 		tmp |= (cmd->start_arg & (CR_INVERT | CR_EDGE));
-		err |= cfc_check_trigger_arg_is(&cmd->start_arg, tmp);
+		err |= comedi_check_trigger_arg_is(&cmd->start_arg, tmp);
 		break;
 	}
 
 	if (cmd->scan_begin_src == TRIG_TIMER) {
-		err |= cfc_check_trigger_arg_min(&cmd->scan_begin_arg,
-						 board->ao_speed);
-		err |= cfc_check_trigger_arg_max(&cmd->scan_begin_arg,
-						 devpriv->clock_ns * 0xffffff);
+		err |= comedi_check_trigger_arg_min(&cmd->scan_begin_arg,
+						    board->ao_speed);
+		err |= comedi_check_trigger_arg_max(&cmd->scan_begin_arg,
+						    devpriv->clock_ns *
+						    0xffffff);
 	}
 
-	err |= cfc_check_trigger_arg_is(&cmd->convert_arg, 0);
-	err |= cfc_check_trigger_arg_is(&cmd->scan_end_arg, cmd->chanlist_len);
+	err |= comedi_check_trigger_arg_is(&cmd->convert_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
+					   cmd->chanlist_len);
 
 	if (cmd->stop_src == TRIG_COUNT)
-		err |= cfc_check_trigger_arg_max(&cmd->stop_arg, 0x00ffffff);
+		err |= comedi_check_trigger_arg_max(&cmd->stop_arg, 0x00ffffff);
 	else	/* TRIG_NONE */
-		err |= cfc_check_trigger_arg_is(&cmd->stop_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
 
 	if (err)
 		return 3;
@@ -3474,11 +3474,11 @@ static int ni_cdio_cmdtest(struct comedi_device *dev,
 
 	/* Step 1 : check if triggers are trivially valid */
 
-	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_INT);
-	err |= cfc_check_trigger_src(&cmd->scan_begin_src, TRIG_EXT);
-	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_NOW);
-	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_NONE);
+	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_INT);
+	err |= comedi_check_trigger_src(&cmd->scan_begin_src, TRIG_EXT);
+	err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_NOW);
+	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_NONE);
 
 	if (err)
 		return 1;
@@ -3488,16 +3488,17 @@ static int ni_cdio_cmdtest(struct comedi_device *dev,
 
 	/* Step 3: check if arguments are trivially valid */
 
-	err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
 
 	tmp = cmd->scan_begin_arg;
 	tmp &= CR_PACK_FLAGS(CDO_Sample_Source_Select_Mask, 0, 0, CR_INVERT);
 	if (tmp != cmd->scan_begin_arg)
 		err |= -EINVAL;
 
-	err |= cfc_check_trigger_arg_is(&cmd->convert_arg, 0);
-	err |= cfc_check_trigger_arg_is(&cmd->scan_end_arg, cmd->chanlist_len);
-	err |= cfc_check_trigger_arg_is(&cmd->stop_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->convert_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
+					   cmd->chanlist_len);
+	err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
 
 	if (err)
 		return 3;
@@ -3694,8 +3695,7 @@ static int ni_serial_hw_readwrite8(struct comedi_device *dev,
 		udelay((devpriv->serial_interval_ns + 999) / 1000);
 		if (--count < 0) {
 			dev_err(dev->class_dev,
-				"%s: SPI serial I/O didn't finish in time!\n",
-				__func__);
+				"SPI serial I/O didn't finish in time!\n");
 			err = -ETIME;
 			goto Error;
 		}
@@ -3705,7 +3705,7 @@ static int ni_serial_hw_readwrite8(struct comedi_device *dev,
 	   DIO_Serial_IO_In_Progress_St goes high one bit too early. */
 	udelay((devpriv->serial_interval_ns + 999) / 1000);
 
-	if (data_in != NULL)
+	if (data_in)
 		*data_in = ni_stc_readw(dev, DIO_Serial_Input_Register);
 
 Error:
@@ -3817,8 +3817,6 @@ static int ni_serial_insn_config(struct comedi_device *dev,
 			      Clock_and_FOUT_Register);
 		return 1;
 
-		break;
-
 	case INSN_CONFIG_BIDIRECTIONAL_DATA:
 
 		if (devpriv->serial_interval_ns == 0)
@@ -3833,8 +3831,7 @@ static int ni_serial_insn_config(struct comedi_device *dev,
 			err = ni_serial_sw_readwrite8(dev, s, byte_out,
 						      &byte_in);
 		} else {
-			dev_err(dev->class_dev, "%s: serial disabled!\n",
-				__func__);
+			dev_err(dev->class_dev, "serial disabled!\n");
 			return -EINVAL;
 		}
 		if (err < 0)
@@ -3846,7 +3843,6 @@ static int ni_serial_insn_config(struct comedi_device *dev,
 	default:
 		return -EINVAL;
 	}
-
 }
 
 static void init_ao_67xx(struct comedi_device *dev, struct comedi_subdevice *s)
@@ -4520,8 +4516,7 @@ static unsigned ni_old_get_pfi_routing(struct comedi_device *dev,
 	case 9:
 		return NI_PFI_OUTPUT_G_GATE0;
 	default:
-		dev_err(dev->class_dev,
-			"%s: bug, unhandled case in switch.\n", __func__);
+		dev_err(dev->class_dev, "bug, unhandled case in switch.\n");
 		break;
 	}
 	return 0;
@@ -4673,7 +4668,7 @@ static int cs5529_wait_for_idle(struct comedi_device *dev)
 			return -EIO;
 	}
 	if (i == timeout) {
-		dev_err(dev->class_dev, "%s timeout\n", __func__);
+		dev_err(dev->class_dev, "timeout\n");
 		return -ETIME;
 	}
 	return 0;
@@ -4908,7 +4903,7 @@ static int ni_mseries_set_pll_master_clock(struct comedi_device *dev,
 					       &devpriv->clock_ns);
 	if (retval < 0) {
 		dev_err(dev->class_dev,
-			"%s: bug, failed to find pll parameters\n", __func__);
+			"bug, failed to find pll parameters\n");
 		return retval;
 	}
 
@@ -4966,14 +4961,14 @@ static int ni_set_master_clock(struct comedi_device *dev,
 					      RTSI_Trig_Direction_Register);
 				if (period_ns == 0) {
 					dev_err(dev->class_dev,
-						"%s: we don't handle an unspecified clock period correctly yet, returning error\n",
-						__func__);
+						"we don't handle an unspecified clock period correctly yet, returning error\n");
 					return -EINVAL;
 				}
 				devpriv->clock_ns = period_ns;
 				devpriv->clock_source = source;
-			} else
+			} else {
 				return -EINVAL;
+			}
 		}
 	}
 	return 3;
@@ -5057,8 +5052,7 @@ static unsigned ni_get_rtsi_routing(struct comedi_device *dev, unsigned chan)
 	} else {
 		if (chan == old_RTSI_clock_channel)
 			return NI_RTSI_OUTPUT_RTSI_OSC;
-		dev_err(dev->class_dev, "%s: bug! should never get here?\n",
-			__func__);
+		dev_err(dev->class_dev, "bug! should never get here?\n");
 		return 0;
 	}
 }
diff --git a/drivers/staging/comedi/drivers/ni_pcidio.c b/drivers/staging/comedi/drivers/ni_pcidio.c
index db399fe..ac79099 100644
--- a/drivers/staging/comedi/drivers/ni_pcidio.c
+++ b/drivers/staging/comedi/drivers/ni_pcidio.c
@@ -53,9 +53,8 @@ comedi_nonfree_firmware tarball available from http://www.comedi.org
 #include <linux/interrupt.h>
 #include <linux/sched.h>
 
-#include "../comedidev.h"
+#include "../comedi_pci.h"
 
-#include "comedi_fc.h"
 #include "mite.h"
 
 /* defines for the PCI-DIO-32HS */
@@ -304,7 +303,7 @@ static int ni_pcidio_request_di_mite_channel(struct comedi_device *dev)
 	devpriv->di_mite_chan =
 	    mite_request_channel_in_range(devpriv->mite,
 					  devpriv->di_mite_ring, 1, 2);
-	if (devpriv->di_mite_chan == NULL) {
+	if (!devpriv->di_mite_chan) {
 		spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
 		dev_err(dev->class_dev, "failed to reserve mite dma channel\n");
 		return -EBUSY;
@@ -354,8 +353,9 @@ static int setup_mite_dma(struct comedi_device *dev, struct comedi_subdevice *s)
 	if (devpriv->di_mite_chan) {
 		mite_prep_dma(devpriv->di_mite_chan, 32, 32);
 		mite_dma_arm(devpriv->di_mite_chan);
-	} else
+	} else {
 		retval = -EIO;
+	}
 	spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
 
 	return retval;
@@ -547,21 +547,21 @@ static int ni_pcidio_cmdtest(struct comedi_device *dev,
 
 	/* Step 1 : check if triggers are trivially valid */
 
-	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_INT);
-	err |= cfc_check_trigger_src(&cmd->scan_begin_src,
+	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_INT);
+	err |= comedi_check_trigger_src(&cmd->scan_begin_src,
 					TRIG_TIMER | TRIG_EXT);
-	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_NOW);
-	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
+	err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_NOW);
+	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
 	/* Step 2a : make sure trigger sources are unique */
 
-	err |= cfc_check_trigger_is_unique(cmd->start_src);
-	err |= cfc_check_trigger_is_unique(cmd->scan_begin_src);
-	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+	err |= comedi_check_trigger_is_unique(cmd->start_src);
+	err |= comedi_check_trigger_is_unique(cmd->scan_begin_src);
+	err |= comedi_check_trigger_is_unique(cmd->stop_src);
 
 	/* Step 2b : and mutually compatible */
 
@@ -570,13 +570,13 @@ static int ni_pcidio_cmdtest(struct comedi_device *dev,
 
 	/* Step 3: check if arguments are trivially valid */
 
-	err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
 
 #define MAX_SPEED	(TIMER_BASE)	/* in nanoseconds */
 
 	if (cmd->scan_begin_src == TRIG_TIMER) {
-		err |= cfc_check_trigger_arg_min(&cmd->scan_begin_arg,
-						 MAX_SPEED);
+		err |= comedi_check_trigger_arg_min(&cmd->scan_begin_arg,
+						    MAX_SPEED);
 		/* no minimum speed */
 	} else {
 		/* TRIG_EXT */
@@ -587,13 +587,14 @@ static int ni_pcidio_cmdtest(struct comedi_device *dev,
 		}
 	}
 
-	err |= cfc_check_trigger_arg_is(&cmd->convert_arg, 0);
-	err |= cfc_check_trigger_arg_is(&cmd->scan_end_arg, cmd->chanlist_len);
+	err |= comedi_check_trigger_arg_is(&cmd->convert_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
+					   cmd->chanlist_len);
 
 	if (cmd->stop_src == TRIG_COUNT)
-		err |= cfc_check_trigger_arg_min(&cmd->stop_arg, 1);
+		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
 	else	/* TRIG_NONE */
-		err |= cfc_check_trigger_arg_is(&cmd->stop_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
 
 	if (err)
 		return 3;
@@ -603,7 +604,7 @@ static int ni_pcidio_cmdtest(struct comedi_device *dev,
 	if (cmd->scan_begin_src == TRIG_TIMER) {
 		arg = cmd->scan_begin_arg;
 		ni_pcidio_ns_to_timer(&arg, cmd->flags);
-		err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, arg);
+		err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, arg);
 	}
 
 	if (err)
@@ -924,7 +925,7 @@ static int nidio_auto_attach(struct comedi_device *dev,
 		return ret;
 
 	devpriv->di_mite_ring = mite_alloc_ring(devpriv->mite);
-	if (devpriv->di_mite_ring == NULL)
+	if (!devpriv->di_mite_ring)
 		return -ENOMEM;
 
 	if (board->uses_firmware) {
diff --git a/drivers/staging/comedi/drivers/ni_pcimio.c b/drivers/staging/comedi/drivers/ni_pcimio.c
index 3b2bdeb..1481f71a 100644
--- a/drivers/staging/comedi/drivers/ni_pcimio.c
+++ b/drivers/staging/comedi/drivers/ni_pcimio.c
@@ -109,7 +109,7 @@ Bugs:
 #include <linux/module.h>
 #include <linux/delay.h>
 
-#include "../comedidev.h"
+#include "../comedi_pci.h"
 
 #include <asm/byteorder.h>
 
@@ -1041,7 +1041,6 @@ static int pcimio_dio_change(struct comedi_device *dev,
 	return 0;
 }
 
-
 static void m_series_init_eeprom_buffer(struct comedi_device *dev)
 {
 	struct ni_private *devpriv = dev->private;
@@ -1183,19 +1182,19 @@ static int pcimio_auto_attach(struct comedi_device *dev,
 		return ret;
 
 	devpriv->ai_mite_ring = mite_alloc_ring(devpriv->mite);
-	if (devpriv->ai_mite_ring == NULL)
+	if (!devpriv->ai_mite_ring)
 		return -ENOMEM;
 	devpriv->ao_mite_ring = mite_alloc_ring(devpriv->mite);
-	if (devpriv->ao_mite_ring == NULL)
+	if (!devpriv->ao_mite_ring)
 		return -ENOMEM;
 	devpriv->cdo_mite_ring = mite_alloc_ring(devpriv->mite);
-	if (devpriv->cdo_mite_ring == NULL)
+	if (!devpriv->cdo_mite_ring)
 		return -ENOMEM;
 	devpriv->gpct_mite_ring[0] = mite_alloc_ring(devpriv->mite);
-	if (devpriv->gpct_mite_ring[0] == NULL)
+	if (!devpriv->gpct_mite_ring[0])
 		return -ENOMEM;
 	devpriv->gpct_mite_ring[1] = mite_alloc_ring(devpriv->mite);
-	if (devpriv->gpct_mite_ring[1] == NULL)
+	if (!devpriv->gpct_mite_ring[1])
 		return -ENOMEM;
 
 	if (devpriv->is_m_series)
diff --git a/drivers/staging/comedi/drivers/ni_tiocmd.c b/drivers/staging/comedi/drivers/ni_tiocmd.c
index d36c3ab..9b124b0 100644
--- a/drivers/staging/comedi/drivers/ni_tiocmd.c
+++ b/drivers/staging/comedi/drivers/ni_tiocmd.c
@@ -44,7 +44,6 @@ TODO:
 */
 
 #include <linux/module.h>
-#include "comedi_fc.h"
 #include "ni_tio_internal.h"
 #include "mite.h"
 
@@ -201,7 +200,7 @@ int ni_tio_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 	unsigned long flags;
 
 	spin_lock_irqsave(&counter->lock, flags);
-	if (counter->mite_chan == NULL) {
+	if (!counter->mite_chan) {
 		dev_err(counter->counter_dev->dev->class_dev,
 			"commands only supported with DMA.  ");
 		dev_err(counter->counter_dev->dev->class_dev,
@@ -234,23 +233,23 @@ int ni_tio_cmdtest(struct comedi_device *dev,
 	sources = TRIG_NOW | TRIG_INT | TRIG_OTHER;
 	if (ni_tio_counting_mode_registers_present(counter->counter_dev))
 		sources |= TRIG_EXT;
-	err |= cfc_check_trigger_src(&cmd->start_src, sources);
+	err |= comedi_check_trigger_src(&cmd->start_src, sources);
 
-	err |= cfc_check_trigger_src(&cmd->scan_begin_src,
+	err |= comedi_check_trigger_src(&cmd->scan_begin_src,
 					TRIG_FOLLOW | TRIG_EXT | TRIG_OTHER);
-	err |= cfc_check_trigger_src(&cmd->convert_src,
+	err |= comedi_check_trigger_src(&cmd->convert_src,
 					TRIG_NOW | TRIG_EXT | TRIG_OTHER);
-	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_NONE);
+	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_NONE);
 
 	if (err)
 		return 1;
 
 	/* Step 2a : make sure trigger sources are unique */
 
-	err |= cfc_check_trigger_is_unique(cmd->start_src);
-	err |= cfc_check_trigger_is_unique(cmd->scan_begin_src);
-	err |= cfc_check_trigger_is_unique(cmd->convert_src);
+	err |= comedi_check_trigger_is_unique(cmd->start_src);
+	err |= comedi_check_trigger_is_unique(cmd->scan_begin_src);
+	err |= comedi_check_trigger_is_unique(cmd->convert_src);
 
 	/* Step 2b : and mutually compatible */
 
@@ -266,7 +265,7 @@ int ni_tio_cmdtest(struct comedi_device *dev,
 	case TRIG_NOW:
 	case TRIG_INT:
 	case TRIG_OTHER:
-		err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
 		break;
 	case TRIG_EXT:
 		/* start_arg is the start_trigger passed to ni_tio_arm() */
@@ -274,13 +273,14 @@ int ni_tio_cmdtest(struct comedi_device *dev,
 	}
 
 	if (cmd->scan_begin_src != TRIG_EXT)
-		err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
 
 	if (cmd->convert_src != TRIG_EXT)
-		err |= cfc_check_trigger_arg_is(&cmd->convert_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->convert_arg, 0);
 
-	err |= cfc_check_trigger_arg_is(&cmd->scan_end_arg, cmd->chanlist_len);
-	err |= cfc_check_trigger_arg_is(&cmd->stop_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
+					   cmd->chanlist_len);
+	err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
 
 	if (err)
 		return 3;
@@ -329,7 +329,7 @@ static int should_ack_gate(struct ni_gpct *counter)
 	case ni_gpct_variant_e_series:
 		spin_lock_irqsave(&counter->lock, flags);
 		{
-			if (counter->mite_chan == NULL ||
+			if (!counter->mite_chan ||
 			    counter->mite_chan->dir != COMEDI_INPUT ||
 			    (mite_done(counter->mite_chan))) {
 				retval = 1;
@@ -366,7 +366,7 @@ static void ni_tio_acknowledge_and_confirm(struct ni_gpct *counter,
 	if (gxx_status & GI_GATE_ERROR(cidx)) {
 		ack |= GI_GATE_ERROR_CONFIRM(cidx);
 		if (gate_error) {
-			/*660x don't support automatic acknowledgement
+			/*660x don't support automatic acknowledgment
 			  of gate interrupt via dma read/write
 			   and report bogus gate errors */
 			if (counter->counter_dev->variant !=
@@ -443,7 +443,7 @@ void ni_tio_handle_interrupt(struct ni_gpct *counter,
 		break;
 	}
 	spin_lock_irqsave(&counter->lock, flags);
-	if (counter->mite_chan == NULL) {
+	if (!counter->mite_chan) {
 		spin_unlock_irqrestore(&counter->lock, flags);
 		return;
 	}
diff --git a/drivers/staging/comedi/drivers/pcl711.c b/drivers/staging/comedi/drivers/pcl711.c
index cb7e4c3..cfc3a62 100644
--- a/drivers/staging/comedi/drivers/pcl711.c
+++ b/drivers/staging/comedi/drivers/pcl711.c
@@ -41,8 +41,7 @@
 
 #include "../comedidev.h"
 
-#include "comedi_fc.h"
-#include "8253.h"
+#include "comedi_8254.h"
 
 /*
  * I/O port register map
@@ -153,11 +152,6 @@ static const struct pcl711_board boardtypes[] = {
 	},
 };
 
-struct pcl711_private {
-	unsigned int divisor1;
-	unsigned int divisor2;
-};
-
 static void pcl711_ai_set_mode(struct comedi_device *dev, unsigned int mode)
 {
 	/*
@@ -287,26 +281,24 @@ static int pcl711_ai_insn_read(struct comedi_device *dev,
 static int pcl711_ai_cmdtest(struct comedi_device *dev,
 			     struct comedi_subdevice *s, struct comedi_cmd *cmd)
 {
-	struct pcl711_private *devpriv = dev->private;
 	int err = 0;
-	unsigned int arg;
 
 	/* Step 1 : check if triggers are trivially valid */
 
-	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW);
-	err |= cfc_check_trigger_src(&cmd->scan_begin_src,
+	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW);
+	err |= comedi_check_trigger_src(&cmd->scan_begin_src,
 					TRIG_TIMER | TRIG_EXT);
-	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_NOW);
-	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
+	err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_NOW);
+	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
 	/* Step 2a : make sure trigger sources are unique */
 
-	err |= cfc_check_trigger_is_unique(cmd->scan_begin_src);
-	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+	err |= comedi_check_trigger_is_unique(cmd->scan_begin_src);
+	err |= comedi_check_trigger_is_unique(cmd->stop_src);
 
 	/* Step 2b : and mutually compatible */
 
@@ -315,23 +307,24 @@ static int pcl711_ai_cmdtest(struct comedi_device *dev,
 
 	/* Step 3: check if arguments are trivially valid */
 
-	err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
 
 	if (cmd->scan_begin_src == TRIG_EXT) {
-		err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
 	} else {
 #define MAX_SPEED 1000
-		err |= cfc_check_trigger_arg_min(&cmd->scan_begin_arg,
-						 MAX_SPEED);
+		err |= comedi_check_trigger_arg_min(&cmd->scan_begin_arg,
+						    MAX_SPEED);
 	}
 
-	err |= cfc_check_trigger_arg_is(&cmd->convert_arg, 0);
-	err |= cfc_check_trigger_arg_is(&cmd->scan_end_arg, cmd->chanlist_len);
+	err |= comedi_check_trigger_arg_is(&cmd->convert_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
+					   cmd->chanlist_len);
 
 	if (cmd->stop_src == TRIG_COUNT)
-		err |= cfc_check_trigger_arg_min(&cmd->stop_arg, 1);
+		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
 	else	/* TRIG_NONE */
-		err |= cfc_check_trigger_arg_is(&cmd->stop_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
 
 	if (err)
 		return 3;
@@ -339,12 +332,10 @@ static int pcl711_ai_cmdtest(struct comedi_device *dev,
 	/* step 4 */
 
 	if (cmd->scan_begin_src == TRIG_TIMER) {
-		arg = cmd->scan_begin_arg;
-		i8253_cascade_ns_to_timer(I8254_OSC_BASE_2MHZ,
-					  &devpriv->divisor1,
-					  &devpriv->divisor2,
-					  &arg, cmd->flags);
-		err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, arg);
+		unsigned int arg = cmd->scan_begin_arg;
+
+		comedi_8254_cascade_ns_to_timer(dev->pacer, &arg, cmd->flags);
+		err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, arg);
 	}
 
 	if (err)
@@ -353,18 +344,6 @@ static int pcl711_ai_cmdtest(struct comedi_device *dev,
 	return 0;
 }
 
-static void pcl711_ai_load_counters(struct comedi_device *dev)
-{
-	struct pcl711_private *devpriv = dev->private;
-	unsigned long timer_base = dev->iobase + PCL711_TIMER_BASE;
-
-	i8254_set_mode(timer_base, 0, 1, I8254_MODE2 | I8254_BINARY);
-	i8254_set_mode(timer_base, 0, 2, I8254_MODE2 | I8254_BINARY);
-
-	i8254_write(timer_base, 0, 1, devpriv->divisor1);
-	i8254_write(timer_base, 0, 2, devpriv->divisor2);
-}
-
 static int pcl711_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 {
 	struct comedi_cmd *cmd = &s->async->cmd;
@@ -372,7 +351,8 @@ static int pcl711_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 	pcl711_set_changain(dev, s, cmd->chanlist[0]);
 
 	if (cmd->scan_begin_src == TRIG_TIMER) {
-		pcl711_ai_load_counters(dev);
+		comedi_8254_update_divisors(dev->pacer);
+		comedi_8254_pacer_enable(dev->pacer, 1, 2, true);
 		outb(PCL711_INT_STAT_CLR, dev->iobase + PCL711_INT_STAT_REG);
 		pcl711_ai_set_mode(dev, PCL711_MODE_PACER_IRQ);
 	} else {
@@ -445,14 +425,9 @@ static int pcl711_do_insn_bits(struct comedi_device *dev,
 static int pcl711_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 {
 	const struct pcl711_board *board = dev->board_ptr;
-	struct pcl711_private *devpriv;
 	struct comedi_subdevice *s;
 	int ret;
 
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
 	ret = comedi_request_region(dev, it->options[0], 0x10);
 	if (ret)
 		return ret;
@@ -464,6 +439,11 @@ static int pcl711_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 			dev->irq = it->options[1];
 	}
 
+	dev->pacer = comedi_8254_init(dev->iobase + PCL711_TIMER_BASE,
+				      I8254_OSC_BASE_2MHZ, I8254_IO8, 0);
+	if (!dev->pacer)
+		return -ENOMEM;
+
 	ret = comedi_alloc_subdevices(dev, 4);
 	if (ret)
 		return ret;
diff --git a/drivers/staging/comedi/drivers/pcl726.c b/drivers/staging/comedi/drivers/pcl726.c
index 4079815..256850c 100644
--- a/drivers/staging/comedi/drivers/pcl726.c
+++ b/drivers/staging/comedi/drivers/pcl726.c
@@ -62,8 +62,6 @@
 
 #include "../comedidev.h"
 
-#include "comedi_fc.h"
-
 #define PCL726_AO_MSB_REG(x)	(0x00 + ((x) * 2))
 #define PCL726_AO_LSB_REG(x)	(0x01 + ((x) * 2))
 #define PCL726_DO_MSB_REG	0x0c
@@ -173,11 +171,11 @@ static int pcl726_intr_cmdtest(struct comedi_device *dev,
 
 	/* Step 1 : check if triggers are trivially valid */
 
-	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW);
-	err |= cfc_check_trigger_src(&cmd->scan_begin_src, TRIG_EXT);
-	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_FOLLOW);
-	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_NONE);
+	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW);
+	err |= comedi_check_trigger_src(&cmd->scan_begin_src, TRIG_EXT);
+	err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_FOLLOW);
+	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_NONE);
 
 	if (err)
 		return 1;
@@ -187,11 +185,12 @@ static int pcl726_intr_cmdtest(struct comedi_device *dev,
 
 	/* Step 3: check if arguments are trivially valid */
 
-	err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0);
-	err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
-	err |= cfc_check_trigger_arg_is(&cmd->convert_arg, 0);
-	err |= cfc_check_trigger_arg_is(&cmd->scan_end_arg, cmd->chanlist_len);
-	err |= cfc_check_trigger_arg_is(&cmd->stop_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->convert_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
+					   cmd->chanlist_len);
+	err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
 
 	if (err)
 		return 3;
diff --git a/drivers/staging/comedi/drivers/pcl812.c b/drivers/staging/comedi/drivers/pcl812.c
index 3ffb1ea..03a3fd6 100644
--- a/drivers/staging/comedi/drivers/pcl812.c
+++ b/drivers/staging/comedi/drivers/pcl812.c
@@ -117,8 +117,7 @@
 #include "../comedidev.h"
 
 #include "comedi_isadma.h"
-#include "comedi_fc.h"
-#include "8253.h"
+#include "comedi_8254.h"
 
 /* hardware types of the cards */
 #define boardPCL812PG	      0	/* and ACL-8112PG */
@@ -513,8 +512,6 @@ struct pcl812_private {
 	unsigned char mode_reg_int;	/*  there is stored INT number for some card */
 	unsigned int ai_poll_ptr;	/*  how many sampes transfer poll */
 	unsigned int max_812_ai_mode0_rangewait;	/*  setling time for gain */
-	unsigned int divisor1;
-	unsigned int divisor2;
 	unsigned int use_diff:1;
 	unsigned int use_mpc508:1;
 	unsigned int use_ext_trg:1;
@@ -522,21 +519,6 @@ struct pcl812_private {
 	unsigned int ai_eos:1;
 };
 
-static void pcl812_start_pacer(struct comedi_device *dev, bool load_timers)
-{
-	struct pcl812_private *devpriv = dev->private;
-	unsigned long timer_base = dev->iobase + PCL812_TIMER_BASE;
-
-	i8254_set_mode(timer_base, 0, 2, I8254_MODE2 | I8254_BINARY);
-	i8254_set_mode(timer_base, 0, 1, I8254_MODE2 | I8254_BINARY);
-	udelay(1);
-
-	if (load_timers) {
-		i8254_write(timer_base, 0, 2, devpriv->divisor2);
-		i8254_write(timer_base, 0, 1, devpriv->divisor1);
-	}
-}
-
 static void pcl812_ai_setup_dma(struct comedi_device *dev,
 				struct comedi_subdevice *s,
 				unsigned int unread_samples)
@@ -650,28 +632,27 @@ static int pcl812_ai_cmdtest(struct comedi_device *dev,
 	struct pcl812_private *devpriv = dev->private;
 	int err = 0;
 	unsigned int flags;
-	unsigned int arg;
 
 	/* Step 1 : check if triggers are trivially valid */
 
-	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW);
-	err |= cfc_check_trigger_src(&cmd->scan_begin_src, TRIG_FOLLOW);
+	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW);
+	err |= comedi_check_trigger_src(&cmd->scan_begin_src, TRIG_FOLLOW);
 
 	if (devpriv->use_ext_trg)
 		flags = TRIG_EXT;
 	else
 		flags = TRIG_TIMER;
-	err |= cfc_check_trigger_src(&cmd->convert_src, flags);
+	err |= comedi_check_trigger_src(&cmd->convert_src, flags);
 
-	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
+	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
 	/* Step 2a : make sure trigger sources are unique */
 
-	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+	err |= comedi_check_trigger_is_unique(cmd->stop_src);
 
 	/* Step 2b : and mutually compatible */
 
@@ -680,22 +661,24 @@ static int pcl812_ai_cmdtest(struct comedi_device *dev,
 
 	/* Step 3: check if arguments are trivially valid */
 
-	err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0);
-	err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
 
-	if (cmd->convert_src == TRIG_TIMER)
-		err |= cfc_check_trigger_arg_min(&cmd->convert_arg,
-						 board->ai_ns_min);
-	else	/* TRIG_EXT */
-		err |= cfc_check_trigger_arg_is(&cmd->convert_arg, 0);
+	if (cmd->convert_src == TRIG_TIMER) {
+		err |= comedi_check_trigger_arg_min(&cmd->convert_arg,
+						    board->ai_ns_min);
+	} else {	/* TRIG_EXT */
+		err |= comedi_check_trigger_arg_is(&cmd->convert_arg, 0);
+	}
 
-	err |= cfc_check_trigger_arg_min(&cmd->chanlist_len, 1);
-	err |= cfc_check_trigger_arg_is(&cmd->scan_end_arg, cmd->chanlist_len);
+	err |= comedi_check_trigger_arg_min(&cmd->chanlist_len, 1);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
+					   cmd->chanlist_len);
 
 	if (cmd->stop_src == TRIG_COUNT)
-		err |= cfc_check_trigger_arg_min(&cmd->stop_arg, 1);
+		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
 	else	/* TRIG_NONE */
-		err |= cfc_check_trigger_arg_is(&cmd->stop_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
 
 	if (err)
 		return 3;
@@ -703,12 +686,10 @@ static int pcl812_ai_cmdtest(struct comedi_device *dev,
 	/* step 4: fix up any arguments */
 
 	if (cmd->convert_src == TRIG_TIMER) {
-		arg = cmd->convert_arg;
-		i8253_cascade_ns_to_timer(I8254_OSC_BASE_2MHZ,
-					  &devpriv->divisor1,
-					  &devpriv->divisor2,
-					  &arg, cmd->flags);
-		err |= cfc_check_trigger_arg_is(&cmd->convert_arg, arg);
+		unsigned int arg = cmd->convert_arg;
+
+		comedi_8254_cascade_ns_to_timer(dev->pacer, &arg, cmd->flags);
+		err |= comedi_check_trigger_arg_is(&cmd->convert_arg, arg);
 	}
 
 	if (err)
@@ -725,8 +706,6 @@ static int pcl812_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 	unsigned int ctrl = 0;
 	unsigned int i;
 
-	pcl812_start_pacer(dev, false);
-
 	pcl812_ai_set_chan_range(dev, cmd->chanlist[0], 1);
 
 	if (dma) {	/*  check if we can use DMA transfer */
@@ -760,7 +739,8 @@ static int pcl812_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 
 	switch (cmd->convert_src) {
 	case TRIG_TIMER:
-		pcl812_start_pacer(dev, true);
+		comedi_8254_update_divisors(dev->pacer);
+		comedi_8254_pacer_enable(dev->pacer, 1, 2, true);
 		break;
 	}
 
@@ -918,7 +898,7 @@ static int pcl812_ai_cancel(struct comedi_device *dev,
 
 	outb(devpriv->mode_reg_int | PCL812_CTRL_DISABLE_TRIG,
 	     dev->iobase + PCL812_CTRL_REG);
-	pcl812_start_pacer(dev, false);
+	comedi_8254_pacer_enable(dev->pacer, 1, 2, false);
 	pcl812_ai_clear_eoc(dev);
 	return 0;
 }
@@ -1010,10 +990,6 @@ static void pcl812_reset(struct comedi_device *dev)
 	     dev->iobase + PCL812_CTRL_REG);
 	pcl812_ai_clear_eoc(dev);
 
-	/* stop pacer */
-	if (board->IRQbits)
-		pcl812_start_pacer(dev, false);
-
 	/*
 	 * Invalidate last_ai_chanspec then set analog input to
 	 * known channel/range.
@@ -1162,11 +1138,19 @@ static int pcl812_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	if (ret)
 		return ret;
 
-	if ((1 << it->options[1]) & board->IRQbits) {
-		ret = request_irq(it->options[1], pcl812_interrupt, 0,
-				  dev->board_name, dev);
-		if (ret == 0)
-			dev->irq = it->options[1];
+	if (board->IRQbits) {
+		dev->pacer = comedi_8254_init(dev->iobase + PCL812_TIMER_BASE,
+					      I8254_OSC_BASE_2MHZ,
+					      I8254_IO8, 0);
+		if (!dev->pacer)
+			return -ENOMEM;
+
+		if ((1 << it->options[1]) & board->IRQbits) {
+			ret = request_irq(it->options[1], pcl812_interrupt, 0,
+					  dev->board_name, dev);
+			if (ret == 0)
+				dev->irq = it->options[1];
+		}
 	}
 
 	/* we need an IRQ to do DMA on channel 3 or 1 */
diff --git a/drivers/staging/comedi/drivers/pcl816.c b/drivers/staging/comedi/drivers/pcl816.c
index da35edf..1ccb2f1 100644
--- a/drivers/staging/comedi/drivers/pcl816.c
+++ b/drivers/staging/comedi/drivers/pcl816.c
@@ -41,8 +41,7 @@ Configuration Options:
 #include "../comedidev.h"
 
 #include "comedi_isadma.h"
-#include "comedi_fc.h"
-#include "8253.h"
+#include "comedi_8254.h"
 
 /*
  * Register I/O map
@@ -116,31 +115,10 @@ static const struct pcl816_board boardtypes[] = {
 struct pcl816_private {
 	struct comedi_isadma *dma;
 	unsigned int ai_poll_ptr;	/*  how many sampes transfer poll */
-	unsigned int divisor1;
-	unsigned int divisor2;
 	unsigned int ai_cmd_running:1;
 	unsigned int ai_cmd_canceled:1;
 };
 
-static void pcl816_start_pacer(struct comedi_device *dev, bool load_counters)
-{
-	struct pcl816_private *devpriv = dev->private;
-	unsigned long timer_base = dev->iobase + PCL816_TIMER_BASE;
-
-	i8254_set_mode(timer_base, 0, 0, I8254_MODE1 | I8254_BINARY);
-	i8254_write(timer_base, 0, 0, 0x00ff);
-	udelay(1);
-
-	i8254_set_mode(timer_base, 0, 2, I8254_MODE2 | I8254_BINARY);
-	i8254_set_mode(timer_base, 0, 1, I8254_MODE2 | I8254_BINARY);
-	udelay(1);
-
-	if (load_counters) {
-		i8254_write(timer_base, 0, 2, devpriv->divisor2);
-		i8254_write(timer_base, 0, 1, devpriv->divisor1);
-	}
-}
-
 static void pcl816_ai_setup_dma(struct comedi_device *dev,
 				struct comedi_subdevice *s,
 				unsigned int unread_samples)
@@ -367,67 +345,62 @@ static int check_channel_list(struct comedi_device *dev,
 static int pcl816_ai_cmdtest(struct comedi_device *dev,
 			     struct comedi_subdevice *s, struct comedi_cmd *cmd)
 {
-	struct pcl816_private *devpriv = dev->private;
 	int err = 0;
-	unsigned int arg;
 
 	/* Step 1 : check if triggers are trivially valid */
 
-	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW);
-	err |= cfc_check_trigger_src(&cmd->scan_begin_src, TRIG_FOLLOW);
-	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_EXT | TRIG_TIMER);
-	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
+	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW);
+	err |= comedi_check_trigger_src(&cmd->scan_begin_src, TRIG_FOLLOW);
+	err |= comedi_check_trigger_src(&cmd->convert_src,
+					TRIG_EXT | TRIG_TIMER);
+	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
 	/* Step 2a : make sure trigger sources are unique */
 
-	err |= cfc_check_trigger_is_unique(cmd->convert_src);
-	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+	err |= comedi_check_trigger_is_unique(cmd->convert_src);
+	err |= comedi_check_trigger_is_unique(cmd->stop_src);
 
 	/* Step 2b : and mutually compatible */
 
 	if (err)
 		return 2;
 
-
 	/* Step 3: check if arguments are trivially valid */
 
-	err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0);
-	err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
 
 	if (cmd->convert_src == TRIG_TIMER)
-		err |= cfc_check_trigger_arg_min(&cmd->convert_arg, 10000);
+		err |= comedi_check_trigger_arg_min(&cmd->convert_arg, 10000);
 	else	/* TRIG_EXT */
-		err |= cfc_check_trigger_arg_is(&cmd->convert_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->convert_arg, 0);
 
-	err |= cfc_check_trigger_arg_is(&cmd->scan_end_arg, cmd->chanlist_len);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
+					   cmd->chanlist_len);
 
 	if (cmd->stop_src == TRIG_COUNT)
-		err |= cfc_check_trigger_arg_min(&cmd->stop_arg, 1);
+		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
 	else	/* TRIG_NONE */
-		err |= cfc_check_trigger_arg_is(&cmd->stop_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
 
 	if (err)
 		return 3;
 
-
 	/* step 4: fix up any arguments */
 	if (cmd->convert_src == TRIG_TIMER) {
-		arg = cmd->convert_arg;
-		i8253_cascade_ns_to_timer(I8254_OSC_BASE_10MHZ,
-					  &devpriv->divisor1,
-					  &devpriv->divisor2,
-					  &arg, cmd->flags);
-		err |= cfc_check_trigger_arg_is(&cmd->convert_arg, arg);
+		unsigned int arg = cmd->convert_arg;
+
+		comedi_8254_cascade_ns_to_timer(dev->pacer, &arg, cmd->flags);
+		err |= comedi_check_trigger_arg_is(&cmd->convert_arg, arg);
 	}
 
 	if (err)
 		return 4;
 
-
 	/* step 5: complain about special chanlist considerations */
 
 	if (cmd->chanlist) {
@@ -450,8 +423,6 @@ static int pcl816_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 	if (devpriv->ai_cmd_running)
 		return -EBUSY;
 
-	pcl816_start_pacer(dev, false);
-
 	seglen = check_channel_list(dev, s, cmd->chanlist, cmd->chanlist_len);
 	if (seglen < 1)
 		return -EINVAL;
@@ -466,7 +437,11 @@ static int pcl816_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 	dma->cur_dma = 0;
 	pcl816_ai_setup_dma(dev, s, 0);
 
-	pcl816_start_pacer(dev, true);
+	comedi_8254_set_mode(dev->pacer, 0, I8254_MODE1 | I8254_BINARY);
+	comedi_8254_write(dev->pacer, 0, 0x0ff);
+	udelay(1);
+	comedi_8254_update_divisors(dev->pacer);
+	comedi_8254_pacer_enable(dev->pacer, 1, 2, true);
 
 	ctrl = PCL816_CTRL_INTEN | PCL816_CTRL_DMAEN | PCL816_CTRL_DMASRC_SLOT0;
 	if (cmd->convert_src == TRIG_TIMER)
@@ -525,11 +500,7 @@ static int pcl816_ai_cancel(struct comedi_device *dev,
 	outb(PCL816_CTRL_DISABLE_TRIG, dev->iobase + PCL816_CTRL_REG);
 	pcl816_ai_clear_eoc(dev);
 
-	/* Stop pacer */
-	i8254_set_mode(dev->iobase + PCL816_TIMER_BASE, 0,
-			2, I8254_MODE0 | I8254_BINARY);
-	i8254_set_mode(dev->iobase + PCL816_TIMER_BASE, 0,
-			1, I8254_MODE0 | I8254_BINARY);
+	comedi_8254_pacer_enable(dev->pacer, 1, 2, false);
 
 	devpriv->ai_cmd_running = 0;
 	devpriv->ai_cmd_canceled = 1;
@@ -596,17 +567,10 @@ static int pcl816_do_insn_bits(struct comedi_device *dev,
 
 static void pcl816_reset(struct comedi_device *dev)
 {
-	unsigned long timer_base = dev->iobase + PCL816_TIMER_BASE;
-
 	outb(PCL816_CTRL_DISABLE_TRIG, dev->iobase + PCL816_CTRL_REG);
 	pcl816_ai_set_chan_range(dev, 0, 0);
 	pcl816_ai_clear_eoc(dev);
 
-	/* Stop pacer */
-	i8254_set_mode(timer_base, 0, 2, I8254_MODE0 | I8254_BINARY);
-	i8254_set_mode(timer_base, 0, 1, I8254_MODE0 | I8254_BINARY);
-	i8254_set_mode(timer_base, 0, 0, I8254_MODE0 | I8254_BINARY);
-
 	/* set all digital outputs low */
 	outb(0, dev->iobase + PCL816_DO_DI_LSB_REG);
 	outb(0, dev->iobase + PCL816_DO_DI_MSB_REG);
@@ -662,6 +626,11 @@ static int pcl816_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	/* an IRQ and DMA are required to support async commands */
 	pcl816_alloc_irq_and_dma(dev, it);
 
+	dev->pacer = comedi_8254_init(dev->iobase + PCL816_TIMER_BASE,
+				      I8254_OSC_BASE_10MHZ, I8254_IO8, 0);
+	if (!dev->pacer)
+		return -ENOMEM;
+
 	ret = comedi_alloc_subdevices(dev, 4);
 	if (ret)
 		return ret;
diff --git a/drivers/staging/comedi/drivers/pcl818.c b/drivers/staging/comedi/drivers/pcl818.c
index 7e4cdea..e1bdde9 100644
--- a/drivers/staging/comedi/drivers/pcl818.c
+++ b/drivers/staging/comedi/drivers/pcl818.c
@@ -100,8 +100,7 @@
 #include "../comedidev.h"
 
 #include "comedi_isadma.h"
-#include "comedi_fc.h"
-#include "8253.h"
+#include "comedi_8254.h"
 
 /* boards constants */
 
@@ -299,33 +298,15 @@ struct pcl818_private {
 	struct comedi_isadma *dma;
 	/*  manimal allowed delay between samples (in us) for actual card */
 	unsigned int ns_min;
-	int i8253_osc_base;	/*  1/frequency of on board oscilator in ns */
 	/*  MUX setting for actual AI operations */
 	unsigned int act_chanlist[16];
 	unsigned int act_chanlist_len;	/*  how long is actual MUX list */
 	unsigned int act_chanlist_pos;	/*  actual position in MUX list */
-	unsigned int divisor1;
-	unsigned int divisor2;
 	unsigned int usefifo:1;
 	unsigned int ai_cmd_running:1;
 	unsigned int ai_cmd_canceled:1;
 };
 
-static void pcl818_start_pacer(struct comedi_device *dev, bool load_counters)
-{
-	struct pcl818_private *devpriv = dev->private;
-	unsigned long timer_base = dev->iobase + PCL818_TIMER_BASE;
-
-	i8254_set_mode(timer_base, 0, 2, I8254_MODE2 | I8254_BINARY);
-	i8254_set_mode(timer_base, 0, 1, I8254_MODE2 | I8254_BINARY);
-	udelay(1);
-
-	if (load_counters) {
-		i8254_write(timer_base, 0, 2, devpriv->divisor2);
-		i8254_write(timer_base, 0, 1, devpriv->divisor1);
-	}
-}
-
 static void pcl818_ai_setup_dma(struct comedi_device *dev,
 				struct comedi_subdevice *s,
 				unsigned int unread_samples)
@@ -663,25 +644,24 @@ static int ai_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s,
 		      struct comedi_cmd *cmd)
 {
 	const struct pcl818_board *board = dev->board_ptr;
-	struct pcl818_private *devpriv = dev->private;
 	int err = 0;
-	unsigned int arg;
 
 	/* Step 1 : check if triggers are trivially valid */
 
-	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW);
-	err |= cfc_check_trigger_src(&cmd->scan_begin_src, TRIG_FOLLOW);
-	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_TIMER | TRIG_EXT);
-	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
+	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW);
+	err |= comedi_check_trigger_src(&cmd->scan_begin_src, TRIG_FOLLOW);
+	err |= comedi_check_trigger_src(&cmd->convert_src,
+					TRIG_TIMER | TRIG_EXT);
+	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
 	/* Step 2a : make sure trigger sources are unique */
 
-	err |= cfc_check_trigger_is_unique(cmd->convert_src);
-	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+	err |= comedi_check_trigger_is_unique(cmd->convert_src);
+	err |= comedi_check_trigger_is_unique(cmd->stop_src);
 
 	/* Step 2b : and mutually compatible */
 
@@ -690,21 +670,23 @@ static int ai_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s,
 
 	/* Step 3: check if arguments are trivially valid */
 
-	err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0);
-	err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
 
-	if (cmd->convert_src == TRIG_TIMER)
-		err |= cfc_check_trigger_arg_min(&cmd->convert_arg,
-						 board->ns_min);
-	else	/* TRIG_EXT */
-		err |= cfc_check_trigger_arg_is(&cmd->convert_arg, 0);
+	if (cmd->convert_src == TRIG_TIMER) {
+		err |= comedi_check_trigger_arg_min(&cmd->convert_arg,
+						    board->ns_min);
+	} else {	/* TRIG_EXT */
+		err |= comedi_check_trigger_arg_is(&cmd->convert_arg, 0);
+	}
 
-	err |= cfc_check_trigger_arg_is(&cmd->scan_end_arg, cmd->chanlist_len);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
+					   cmd->chanlist_len);
 
 	if (cmd->stop_src == TRIG_COUNT)
-		err |= cfc_check_trigger_arg_min(&cmd->stop_arg, 1);
+		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
 	else	/* TRIG_NONE */
-		err |= cfc_check_trigger_arg_is(&cmd->stop_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
 
 	if (err)
 		return 3;
@@ -712,12 +694,10 @@ static int ai_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s,
 	/* step 4: fix up any arguments */
 
 	if (cmd->convert_src == TRIG_TIMER) {
-		arg = cmd->convert_arg;
-		i8253_cascade_ns_to_timer(devpriv->i8253_osc_base,
-					  &devpriv->divisor1,
-					  &devpriv->divisor2,
-					  &arg, cmd->flags);
-		err |= cfc_check_trigger_arg_is(&cmd->convert_arg, arg);
+		unsigned int arg = cmd->convert_arg;
+
+		comedi_8254_cascade_ns_to_timer(dev->pacer, &arg, cmd->flags);
+		err |= comedi_check_trigger_arg_is(&cmd->convert_arg, arg);
 	}
 
 	if (err)
@@ -746,8 +726,6 @@ static int pcl818_ai_cmd(struct comedi_device *dev,
 	if (devpriv->ai_cmd_running)
 		return -EBUSY;
 
-	pcl818_start_pacer(dev, false);
-
 	seglen = check_channel_list(dev, s, cmd->chanlist, cmd->chanlist_len);
 	if (seglen < 1)
 		return -EINVAL;
@@ -779,8 +757,10 @@ static int pcl818_ai_cmd(struct comedi_device *dev,
 	}
 	outb(ctrl, dev->iobase + PCL818_CTRL_REG);
 
-	if (cmd->convert_src == TRIG_TIMER)
-		pcl818_start_pacer(dev, true);
+	if (cmd->convert_src == TRIG_TIMER) {
+		comedi_8254_update_divisors(dev->pacer);
+		comedi_8254_pacer_enable(dev->pacer, 1, 2, true);
+	}
 
 	return 0;
 }
@@ -812,7 +792,7 @@ static int pcl818_ai_cancel(struct comedi_device *dev,
 	}
 
 	outb(PCL818_CTRL_DISABLE_TRIG, dev->iobase + PCL818_CTRL_REG);
-	pcl818_start_pacer(dev, false);
+	comedi_8254_pacer_enable(dev->pacer, 1, 2, false);
 	pcl818_ai_clear_eoc(dev);
 
 	if (devpriv->usefifo) {	/*  FIFO shutdown */
@@ -906,7 +886,6 @@ static int pcl818_do_insn_bits(struct comedi_device *dev,
 static void pcl818_reset(struct comedi_device *dev)
 {
 	const struct pcl818_board *board = dev->board_ptr;
-	unsigned long timer_base = dev->iobase + PCL818_TIMER_BASE;
 	unsigned int chan;
 
 	/* flush and disable the FIFO */
@@ -924,9 +903,6 @@ static void pcl818_reset(struct comedi_device *dev)
 
 	/* stop pacer */
 	outb(PCL818_CNTENABLE_PACER_ENA, dev->iobase + PCL818_CNTENABLE_REG);
-	i8254_set_mode(timer_base, 0, 2, I8254_MODE0 | I8254_BINARY);
-	i8254_set_mode(timer_base, 0, 1, I8254_MODE0 | I8254_BINARY);
-	i8254_set_mode(timer_base, 0, 0, I8254_MODE0 | I8254_BINARY);
 
 	/* set analog output channels to 0V */
 	for (chan = 0; chan < board->n_aochan; chan++) {
@@ -1016,6 +992,7 @@ static int pcl818_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	const struct pcl818_board *board = dev->board_ptr;
 	struct pcl818_private *devpriv;
 	struct comedi_subdevice *s;
+	unsigned int osc_base;
 	int ret;
 
 	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
@@ -1043,6 +1020,25 @@ static int pcl818_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	if (dev->irq && board->has_dma)
 		pcl818_alloc_dma(dev, it->options[2]);
 
+	/* use 1MHz or 10MHz oscilator */
+	if ((it->options[3] == 0) || (it->options[3] == 10))
+		osc_base = I8254_OSC_BASE_10MHZ;
+	else
+		osc_base = I8254_OSC_BASE_1MHZ;
+
+	dev->pacer = comedi_8254_init(dev->iobase + PCL818_TIMER_BASE,
+				      osc_base, I8254_IO8, 0);
+	if (!dev->pacer)
+		return -ENOMEM;
+
+	/* max sampling speed */
+	devpriv->ns_min = board->ns_min;
+	if (!board->is_818) {
+		/* extended PCL718 to 100kHz DAC */
+		if ((it->options[6] == 1) || (it->options[6] == 100))
+			devpriv->ns_min = 10000;
+	}
+
 	ret = comedi_alloc_subdevices(dev, 4);
 	if (ret)
 		return ret;
@@ -1117,22 +1113,6 @@ static int pcl818_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	s->range_table	= &range_digital;
 	s->insn_bits	= pcl818_do_insn_bits;
 
-	/* select 1/10MHz oscilator */
-	if ((it->options[3] == 0) || (it->options[3] == 10))
-		devpriv->i8253_osc_base = I8254_OSC_BASE_10MHZ;
-	else
-		devpriv->i8253_osc_base = I8254_OSC_BASE_1MHZ;
-
-	/* max sampling speed */
-	devpriv->ns_min = board->ns_min;
-
-	if (!board->is_818) {
-		if ((it->options[6] == 1) || (it->options[6] == 100)) {
-			/* extended PCL718 to 100kHz DAC */
-			devpriv->ns_min = 10000;
-		}
-	}
-
 	pcl818_reset(dev);
 
 	return 0;
diff --git a/drivers/staging/comedi/drivers/pcmmio.c b/drivers/staging/comedi/drivers/pcmmio.c
index 2c0e7ec..10472e6 100644
--- a/drivers/staging/comedi/drivers/pcmmio.c
+++ b/drivers/staging/comedi/drivers/pcmmio.c
@@ -78,8 +78,6 @@
 
 #include "../comedidev.h"
 
-#include "comedi_fc.h"
-
 /*
  * Register I/O map
  */
@@ -483,19 +481,19 @@ static int pcmmio_cmdtest(struct comedi_device *dev,
 
 	/* Step 1 : check if triggers are trivially valid */
 
-	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_INT);
-	err |= cfc_check_trigger_src(&cmd->scan_begin_src, TRIG_EXT);
-	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_NOW);
-	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
+	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_INT);
+	err |= comedi_check_trigger_src(&cmd->scan_begin_src, TRIG_EXT);
+	err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_NOW);
+	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
 	/* Step 2a : make sure trigger sources are unique */
 
-	err |= cfc_check_trigger_is_unique(cmd->start_src);
-	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+	err |= comedi_check_trigger_is_unique(cmd->start_src);
+	err |= comedi_check_trigger_is_unique(cmd->stop_src);
 
 	/* Step 2b : and mutually compatible */
 
@@ -504,15 +502,16 @@ static int pcmmio_cmdtest(struct comedi_device *dev,
 
 	/* Step 3: check if arguments are trivially valid */
 
-	err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0);
-	err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
-	err |= cfc_check_trigger_arg_is(&cmd->convert_arg, 0);
-	err |= cfc_check_trigger_arg_is(&cmd->scan_end_arg, cmd->chanlist_len);
+	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->convert_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
+					   cmd->chanlist_len);
 
 	if (cmd->stop_src == TRIG_COUNT)
-		err |= cfc_check_trigger_arg_min(&cmd->stop_arg, 1);
+		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
 	else	/* TRIG_NONE */
-		err |= cfc_check_trigger_arg_is(&cmd->stop_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
 
 	if (err)
 		return 3;
diff --git a/drivers/staging/comedi/drivers/pcmuio.c b/drivers/staging/comedi/drivers/pcmuio.c
index a1641d9..7ea8130 100644
--- a/drivers/staging/comedi/drivers/pcmuio.c
+++ b/drivers/staging/comedi/drivers/pcmuio.c
@@ -77,8 +77,6 @@
 
 #include "../comedidev.h"
 
-#include "comedi_fc.h"
-
 /*
  * Register I/O map
  *
@@ -486,19 +484,19 @@ static int pcmuio_cmdtest(struct comedi_device *dev,
 
 	/* Step 1 : check if triggers are trivially valid */
 
-	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_INT);
-	err |= cfc_check_trigger_src(&cmd->scan_begin_src, TRIG_EXT);
-	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_NOW);
-	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
+	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_INT);
+	err |= comedi_check_trigger_src(&cmd->scan_begin_src, TRIG_EXT);
+	err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_NOW);
+	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
 	/* Step 2a : make sure trigger sources are unique */
 
-	err |= cfc_check_trigger_is_unique(cmd->start_src);
-	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+	err |= comedi_check_trigger_is_unique(cmd->start_src);
+	err |= comedi_check_trigger_is_unique(cmd->stop_src);
 
 	/* Step 2b : and mutually compatible */
 
@@ -507,15 +505,16 @@ static int pcmuio_cmdtest(struct comedi_device *dev,
 
 	/* Step 3: check if arguments are trivially valid */
 
-	err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0);
-	err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
-	err |= cfc_check_trigger_arg_is(&cmd->convert_arg, 0);
-	err |= cfc_check_trigger_arg_is(&cmd->scan_end_arg, cmd->chanlist_len);
+	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->convert_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
+					   cmd->chanlist_len);
 
 	if (cmd->stop_src == TRIG_COUNT)
-		err |= cfc_check_trigger_arg_min(&cmd->stop_arg, 1);
+		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
 	else	/* TRIG_NONE */
-		err |= cfc_check_trigger_arg_is(&cmd->stop_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
 
 	if (err)
 		return 3;
@@ -568,7 +567,7 @@ static int pcmuio_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		} else if (it->options[2]) {
 			/* request the irq for the 2nd asic */
 			ret = request_irq(it->options[2], pcmuio_interrupt, 0,
-					dev->board_name, dev);
+					  dev->board_name, dev);
 			if (ret == 0)
 				devpriv->irq2 = it->options[2];
 		}
@@ -588,7 +587,7 @@ static int pcmuio_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		s->insn_bits	= pcmuio_dio_insn_bits;
 		s->insn_config	= pcmuio_dio_insn_config;
 
-		/* subdevices 0 and 2 can suppport interrupts */
+		/* subdevices 0 and 2 can support interrupts */
 		if ((i == 0 && dev->irq) || (i == 2 && devpriv->irq2)) {
 			/* setup the interrupt subdevice */
 			dev->read_subdev = s;
diff --git a/drivers/staging/comedi/drivers/quatech_daqp_cs.c b/drivers/staging/comedi/drivers/quatech_daqp_cs.c
index 8387fd0..152cb14 100644
--- a/drivers/staging/comedi/drivers/quatech_daqp_cs.c
+++ b/drivers/staging/comedi/drivers/quatech_daqp_cs.c
@@ -52,7 +52,6 @@ Devices: [Quatech] DAQP-208 (daqp), DAQP-308
 #include <linux/completion.h>
 
 #include "../comedi_pcmcia.h"
-#include "comedi_fc.h"
 
 struct daqp_private {
 	int stop;
@@ -315,7 +314,6 @@ static int daqp_ai_insn_read(struct comedi_device *dev,
 	devpriv->interrupt_mode = semaphore;
 
 	for (i = 0; i < insn->n; i++) {
-
 		/* Start conversion */
 		outb(DAQP_COMMAND_ARM | DAQP_COMMAND_FIFO_DATA,
 		     dev->iobase + DAQP_COMMAND);
@@ -366,22 +364,22 @@ static int daqp_ai_cmdtest(struct comedi_device *dev,
 
 	/* Step 1 : check if triggers are trivially valid */
 
-	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW);
-	err |= cfc_check_trigger_src(&cmd->scan_begin_src,
+	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW);
+	err |= comedi_check_trigger_src(&cmd->scan_begin_src,
 					TRIG_TIMER | TRIG_FOLLOW);
-	err |= cfc_check_trigger_src(&cmd->convert_src,
+	err |= comedi_check_trigger_src(&cmd->convert_src,
 					TRIG_TIMER | TRIG_NOW);
-	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
+	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
 	/* Step 2a : make sure trigger sources are unique */
 
-	err |= cfc_check_trigger_is_unique(cmd->scan_begin_src);
-	err |= cfc_check_trigger_is_unique(cmd->convert_src);
-	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+	err |= comedi_check_trigger_is_unique(cmd->scan_begin_src);
+	err |= comedi_check_trigger_is_unique(cmd->convert_src);
+	err |= comedi_check_trigger_is_unique(cmd->stop_src);
 
 	/* Step 2b : and mutually compatible */
 
@@ -390,13 +388,14 @@ static int daqp_ai_cmdtest(struct comedi_device *dev,
 
 	/* Step 3: check if arguments are trivially valid */
 
-	err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
 
 #define MAX_SPEED	10000	/* 100 kHz - in nanoseconds */
 
-	if (cmd->scan_begin_src == TRIG_TIMER)
-		err |= cfc_check_trigger_arg_min(&cmd->scan_begin_arg,
-						 MAX_SPEED);
+	if (cmd->scan_begin_src == TRIG_TIMER) {
+		err |= comedi_check_trigger_arg_min(&cmd->scan_begin_arg,
+						    MAX_SPEED);
+	}
 
 	/* If both scan_begin and convert are both timer values, the only
 	 * way that can make sense is if the scan time is the number of
@@ -408,15 +407,18 @@ static int daqp_ai_cmdtest(struct comedi_device *dev,
 		err |= -EINVAL;
 	}
 
-	if (cmd->convert_src == TRIG_TIMER)
-		err |= cfc_check_trigger_arg_min(&cmd->convert_arg, MAX_SPEED);
+	if (cmd->convert_src == TRIG_TIMER) {
+		err |= comedi_check_trigger_arg_min(&cmd->convert_arg,
+						    MAX_SPEED);
+	}
 
-	err |= cfc_check_trigger_arg_is(&cmd->scan_end_arg, cmd->chanlist_len);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
+					   cmd->chanlist_len);
 
 	if (cmd->stop_src == TRIG_COUNT)
-		err |= cfc_check_trigger_arg_max(&cmd->stop_arg, 0x00ffffff);
+		err |= comedi_check_trigger_arg_max(&cmd->stop_arg, 0x00ffffff);
 	else	/* TRIG_NONE */
-		err |= cfc_check_trigger_arg_is(&cmd->stop_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
 
 	if (err)
 		return 3;
@@ -426,13 +428,13 @@ static int daqp_ai_cmdtest(struct comedi_device *dev,
 	if (cmd->scan_begin_src == TRIG_TIMER) {
 		arg = cmd->scan_begin_arg;
 		daqp_ns_to_timer(&arg, cmd->flags);
-		err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, arg);
+		err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, arg);
 	}
 
 	if (cmd->convert_src == TRIG_TIMER) {
 		arg = cmd->convert_arg;
 		daqp_ns_to_timer(&arg, cmd->flags);
-		err |= cfc_check_trigger_arg_is(&cmd->convert_arg, arg);
+		err |= comedi_check_trigger_arg_is(&cmd->convert_arg, arg);
 	}
 
 	if (err)
diff --git a/drivers/staging/comedi/drivers/rtd520.c b/drivers/staging/comedi/drivers/rtd520.c
index c94ad12..4c13f5e 100644
--- a/drivers/staging/comedi/drivers/rtd520.c
+++ b/drivers/staging/comedi/drivers/rtd520.c
@@ -94,13 +94,11 @@
  */
 
 #include <linux/module.h>
-#include <linux/pci.h>
 #include <linux/delay.h>
 #include <linux/interrupt.h>
 
-#include "../comedidev.h"
+#include "../comedi_pci.h"
 
-#include "comedi_fc.h"
 #include "plx9080.h"
 
 /*
@@ -579,7 +577,7 @@ static int rtd_ai_rinsn(struct comedi_device *dev,
 
 		/* read data */
 		d = readw(devpriv->las1 + LAS1_ADC_FIFO);
-		d = d >> 3;	/* low 3 bits are marker lines */
+		d >>= 3;	/* low 3 bits are marker lines */
 
 		/* convert bipolar data to comedi unsigned data */
 		if (comedi_range_is_bipolar(s, range))
@@ -616,7 +614,7 @@ static int ai_read_n(struct comedi_device *dev, struct comedi_subdevice *s,
 		}
 
 		d = readw(devpriv->las1 + LAS1_ADC_FIFO);
-		d = d >> 3;	/* low 3 bits are marker lines */
+		d >>= 3;	/* low 3 bits are marker lines */
 
 		/* convert bipolar data to comedi unsigned data */
 		if (comedi_range_is_bipolar(s, range))
@@ -734,21 +732,22 @@ static int rtd_ai_cmdtest(struct comedi_device *dev,
 
 	/* Step 1 : check if triggers are trivially valid */
 
-	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW);
-	err |= cfc_check_trigger_src(&cmd->scan_begin_src,
+	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW);
+	err |= comedi_check_trigger_src(&cmd->scan_begin_src,
 					TRIG_TIMER | TRIG_EXT);
-	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_TIMER | TRIG_EXT);
-	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
+	err |= comedi_check_trigger_src(&cmd->convert_src,
+					TRIG_TIMER | TRIG_EXT);
+	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
 	/* Step 2a : make sure trigger sources are unique */
 
-	err |= cfc_check_trigger_is_unique(cmd->scan_begin_src);
-	err |= cfc_check_trigger_is_unique(cmd->convert_src);
-	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+	err |= comedi_check_trigger_is_unique(cmd->scan_begin_src);
+	err |= comedi_check_trigger_is_unique(cmd->convert_src);
+	err |= comedi_check_trigger_is_unique(cmd->stop_src);
 
 	/* Step 2b : and mutually compatible */
 
@@ -757,32 +756,32 @@ static int rtd_ai_cmdtest(struct comedi_device *dev,
 
 	/* Step 3: check if arguments are trivially valid */
 
-	err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
 
 	if (cmd->scan_begin_src == TRIG_TIMER) {
 		/* Note: these are time periods, not actual rates */
 		if (1 == cmd->chanlist_len) {	/* no scanning */
-			if (cfc_check_trigger_arg_min(&cmd->scan_begin_arg,
-						      RTD_MAX_SPEED_1)) {
+			if (comedi_check_trigger_arg_min(&cmd->scan_begin_arg,
+							 RTD_MAX_SPEED_1)) {
 				rtd_ns_to_timer(&cmd->scan_begin_arg,
 						CMDF_ROUND_UP);
 				err |= -EINVAL;
 			}
-			if (cfc_check_trigger_arg_max(&cmd->scan_begin_arg,
-						      RTD_MIN_SPEED_1)) {
+			if (comedi_check_trigger_arg_max(&cmd->scan_begin_arg,
+							 RTD_MIN_SPEED_1)) {
 				rtd_ns_to_timer(&cmd->scan_begin_arg,
 						CMDF_ROUND_DOWN);
 				err |= -EINVAL;
 			}
 		} else {
-			if (cfc_check_trigger_arg_min(&cmd->scan_begin_arg,
-						      RTD_MAX_SPEED)) {
+			if (comedi_check_trigger_arg_min(&cmd->scan_begin_arg,
+							 RTD_MAX_SPEED)) {
 				rtd_ns_to_timer(&cmd->scan_begin_arg,
 						CMDF_ROUND_UP);
 				err |= -EINVAL;
 			}
-			if (cfc_check_trigger_arg_max(&cmd->scan_begin_arg,
-						      RTD_MIN_SPEED)) {
+			if (comedi_check_trigger_arg_max(&cmd->scan_begin_arg,
+							 RTD_MIN_SPEED)) {
 				rtd_ns_to_timer(&cmd->scan_begin_arg,
 						CMDF_ROUND_DOWN);
 				err |= -EINVAL;
@@ -792,32 +791,32 @@ static int rtd_ai_cmdtest(struct comedi_device *dev,
 		/* external trigger */
 		/* should be level/edge, hi/lo specification here */
 		/* should specify multiple external triggers */
-		err |= cfc_check_trigger_arg_max(&cmd->scan_begin_arg, 9);
+		err |= comedi_check_trigger_arg_max(&cmd->scan_begin_arg, 9);
 	}
 
 	if (cmd->convert_src == TRIG_TIMER) {
 		if (1 == cmd->chanlist_len) {	/* no scanning */
-			if (cfc_check_trigger_arg_min(&cmd->convert_arg,
-						      RTD_MAX_SPEED_1)) {
+			if (comedi_check_trigger_arg_min(&cmd->convert_arg,
+							 RTD_MAX_SPEED_1)) {
 				rtd_ns_to_timer(&cmd->convert_arg,
 						CMDF_ROUND_UP);
 				err |= -EINVAL;
 			}
-			if (cfc_check_trigger_arg_max(&cmd->convert_arg,
-						      RTD_MIN_SPEED_1)) {
+			if (comedi_check_trigger_arg_max(&cmd->convert_arg,
+							 RTD_MIN_SPEED_1)) {
 				rtd_ns_to_timer(&cmd->convert_arg,
 						CMDF_ROUND_DOWN);
 				err |= -EINVAL;
 			}
 		} else {
-			if (cfc_check_trigger_arg_min(&cmd->convert_arg,
-						      RTD_MAX_SPEED)) {
+			if (comedi_check_trigger_arg_min(&cmd->convert_arg,
+							 RTD_MAX_SPEED)) {
 				rtd_ns_to_timer(&cmd->convert_arg,
 						CMDF_ROUND_UP);
 				err |= -EINVAL;
 			}
-			if (cfc_check_trigger_arg_max(&cmd->convert_arg,
-						      RTD_MIN_SPEED)) {
+			if (comedi_check_trigger_arg_max(&cmd->convert_arg,
+							 RTD_MIN_SPEED)) {
 				rtd_ns_to_timer(&cmd->convert_arg,
 						CMDF_ROUND_DOWN);
 				err |= -EINVAL;
@@ -826,37 +825,38 @@ static int rtd_ai_cmdtest(struct comedi_device *dev,
 	} else {
 		/* external trigger */
 		/* see above */
-		err |= cfc_check_trigger_arg_max(&cmd->convert_arg, 9);
+		err |= comedi_check_trigger_arg_max(&cmd->convert_arg, 9);
 	}
 
-	err |= cfc_check_trigger_arg_is(&cmd->scan_end_arg, cmd->chanlist_len);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
+					   cmd->chanlist_len);
 
 	if (cmd->stop_src == TRIG_COUNT)
-		err |= cfc_check_trigger_arg_min(&cmd->stop_arg, 1);
+		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
 	else	/* TRIG_NONE */
-		err |= cfc_check_trigger_arg_is(&cmd->stop_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
 
 	if (err)
 		return 3;
 
-
 	/* step 4: fix up any arguments */
 
 	if (cmd->scan_begin_src == TRIG_TIMER) {
 		arg = cmd->scan_begin_arg;
 		rtd_ns_to_timer(&arg, cmd->flags);
-		err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, arg);
+		err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, arg);
 	}
 
 	if (cmd->convert_src == TRIG_TIMER) {
 		arg = cmd->convert_arg;
 		rtd_ns_to_timer(&arg, cmd->flags);
-		err |= cfc_check_trigger_arg_is(&cmd->convert_arg, arg);
+		err |= comedi_check_trigger_arg_is(&cmd->convert_arg, arg);
 
 		if (cmd->scan_begin_src == TRIG_TIMER) {
 			arg = cmd->convert_arg * cmd->scan_end_arg;
-			err |= cfc_check_trigger_arg_min(&cmd->scan_begin_arg,
-							 arg);
+			err |= comedi_check_trigger_arg_min(&cmd->
+							    scan_begin_arg,
+							    arg);
 		}
 	}
 
@@ -1181,8 +1181,8 @@ static void rtd_pci_latency_quirk(struct comedi_device *dev,
 	pci_read_config_byte(pcidev, PCI_LATENCY_TIMER, &pci_latency);
 	if (pci_latency < 32) {
 		dev_info(dev->class_dev,
-			"PCI latency changed from %d to %d\n",
-			pci_latency, 32);
+			 "PCI latency changed from %d to %d\n",
+			 pci_latency, 32);
 		pci_write_config_byte(pcidev, PCI_LATENCY_TIMER, 32);
 	}
 }
@@ -1299,12 +1299,8 @@ static void rtd_detach(struct comedi_device *dev)
 		/* Shut down any board ops by resetting it */
 		if (dev->mmio && devpriv->lcfg)
 			rtd_reset(dev);
-		if (dev->irq) {
-			writel(readl(devpriv->lcfg + PLX_INTRCS_REG) &
-				~(ICS_PLIE | ICS_DMA0_E | ICS_DMA1_E),
-				devpriv->lcfg + PLX_INTRCS_REG);
+		if (dev->irq)
 			free_irq(dev->irq, dev);
-		}
 		if (dev->mmio)
 			iounmap(dev->mmio);
 		if (devpriv->las1)
diff --git a/drivers/staging/comedi/drivers/s626.c b/drivers/staging/comedi/drivers/s626.c
index fc497dd..781918d 100644
--- a/drivers/staging/comedi/drivers/s626.c
+++ b/drivers/staging/comedi/drivers/s626.c
@@ -61,14 +61,12 @@
 
 #include <linux/module.h>
 #include <linux/delay.h>
-#include <linux/pci.h>
 #include <linux/interrupt.h>
 #include <linux/kernel.h>
 #include <linux/types.h>
 
-#include "../comedidev.h"
+#include "../comedi_pci.h"
 
-#include "comedi_fc.h"
 #include "s626.h"
 
 struct s626_buffer_dma {
@@ -231,9 +229,9 @@ static void s626_debi_replace(struct comedi_device *dev, unsigned int addr,
 /* **************  EEPROM ACCESS FUNCTIONS  ************** */
 
 static int s626_i2c_handshake_eoc(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn,
-				 unsigned long context)
+				  struct comedi_subdevice *s,
+				  struct comedi_insn *insn,
+				  unsigned long context)
 {
 	bool status;
 
@@ -294,7 +292,7 @@ static uint8_t s626_i2c_read(struct comedi_device *dev, uint8_t addr)
 	 *  Byte0 = Not sent.
 	 */
 	if (s626_i2c_handshake(dev, S626_I2C_B2(S626_I2C_ATTRSTART,
-					   (devpriv->i2c_adrs | 1)) |
+						(devpriv->i2c_adrs | 1)) |
 				    S626_I2C_B1(S626_I2C_ATTRSTOP, 0) |
 				    S626_I2C_B0(S626_I2C_ATTRNOP, 0)))
 		/* Abort function and declare error if handshake failed. */
@@ -517,8 +515,8 @@ static int s626_send_dac(struct comedi_device *dev, uint32_t val)
 /*
  * Private helper function: Write setpoint to an application DAC channel.
  */
-static int s626_set_dac(struct comedi_device *dev, uint16_t chan,
-			 int16_t dacdata)
+static int s626_set_dac(struct comedi_device *dev,
+			uint16_t chan, int16_t dacdata)
 {
 	struct s626_private *devpriv = dev->private;
 	uint16_t signmask;
@@ -583,8 +581,8 @@ static int s626_set_dac(struct comedi_device *dev, uint16_t chan,
 	return s626_send_dac(dev, val);
 }
 
-static int s626_write_trim_dac(struct comedi_device *dev, uint8_t logical_chan,
-				uint8_t dac_data)
+static int s626_write_trim_dac(struct comedi_device *dev,
+			       uint8_t logical_chan, uint8_t dac_data)
 {
 	struct s626_private *devpriv = dev->private;
 	uint32_t chan;
@@ -641,7 +639,7 @@ static int s626_load_trim_dacs(struct comedi_device *dev)
 	/* Copy TrimDac setpoint values from EEPROM to TrimDacs. */
 	for (i = 0; i < ARRAY_SIZE(s626_trimchan); i++) {
 		ret = s626_write_trim_dac(dev, i,
-				    s626_i2c_read(dev, s626_trimadrs[i]));
+					  s626_i2c_read(dev, s626_trimadrs[i]));
 		if (ret)
 			return ret;
 	}
@@ -1576,7 +1574,7 @@ static void s626_reset_adc(struct comedi_device *dev, uint8_t *ppl)
 	       dev->mmio + S626_P_RPSADDR1);
 
 	/* Construct RPS program in rps_buf DMA buffer */
-	if (cmd != NULL && cmd->scan_begin_src != TRIG_FOLLOW) {
+	if (cmd->scan_begin_src != TRIG_FOLLOW) {
 		/* Wait for Start trigger. */
 		*rps++ = S626_RPS_PAUSE | S626_RPS_SIGADC;
 		*rps++ = S626_RPS_CLRSIGNAL | S626_RPS_SIGADC;
@@ -1665,7 +1663,7 @@ static void s626_reset_adc(struct comedi_device *dev, uint8_t *ppl)
 			*rps++ = jmp_adrs;
 		}
 
-		if (cmd != NULL && cmd->convert_src != TRIG_NOW) {
+		if (cmd->convert_src != TRIG_NOW) {
 			/* Wait for Start trigger. */
 			*rps++ = S626_RPS_PAUSE | S626_RPS_SIGADC;
 			*rps++ = S626_RPS_CLRSIGNAL | S626_RPS_SIGADC;
@@ -2034,10 +2032,6 @@ static int s626_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 	/* reset ai_cmd_running flag */
 	devpriv->ai_cmd_running = 0;
 
-	/* test if cmd is valid */
-	if (cmd == NULL)
-		return -EINVAL;
-
 	s626_ai_load_polllist(ppl, cmd);
 	devpriv->ai_cmd_running = 1;
 	devpriv->ai_convert_count = 0;
@@ -2120,24 +2114,24 @@ static int s626_ai_cmdtest(struct comedi_device *dev,
 
 	/* Step 1 : check if triggers are trivially valid */
 
-	err |= cfc_check_trigger_src(&cmd->start_src,
-				     TRIG_NOW | TRIG_INT | TRIG_EXT);
-	err |= cfc_check_trigger_src(&cmd->scan_begin_src,
-				     TRIG_TIMER | TRIG_EXT | TRIG_FOLLOW);
-	err |= cfc_check_trigger_src(&cmd->convert_src,
-				     TRIG_TIMER | TRIG_EXT | TRIG_NOW);
-	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
+	err |= comedi_check_trigger_src(&cmd->start_src,
+					TRIG_NOW | TRIG_INT | TRIG_EXT);
+	err |= comedi_check_trigger_src(&cmd->scan_begin_src,
+					TRIG_TIMER | TRIG_EXT | TRIG_FOLLOW);
+	err |= comedi_check_trigger_src(&cmd->convert_src,
+					TRIG_TIMER | TRIG_EXT | TRIG_NOW);
+	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
 	/* Step 2a : make sure trigger sources are unique */
 
-	err |= cfc_check_trigger_is_unique(cmd->start_src);
-	err |= cfc_check_trigger_is_unique(cmd->scan_begin_src);
-	err |= cfc_check_trigger_is_unique(cmd->convert_src);
-	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+	err |= comedi_check_trigger_is_unique(cmd->start_src);
+	err |= comedi_check_trigger_is_unique(cmd->scan_begin_src);
+	err |= comedi_check_trigger_is_unique(cmd->convert_src);
+	err |= comedi_check_trigger_is_unique(cmd->stop_src);
 
 	/* Step 2b : and mutually compatible */
 
@@ -2149,49 +2143,53 @@ static int s626_ai_cmdtest(struct comedi_device *dev,
 	switch (cmd->start_src) {
 	case TRIG_NOW:
 	case TRIG_INT:
-		err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
 		break;
 	case TRIG_EXT:
-		err |= cfc_check_trigger_arg_max(&cmd->start_arg, 39);
+		err |= comedi_check_trigger_arg_max(&cmd->start_arg, 39);
 		break;
 	}
 
 	if (cmd->scan_begin_src == TRIG_EXT)
-		err |= cfc_check_trigger_arg_max(&cmd->scan_begin_arg, 39);
+		err |= comedi_check_trigger_arg_max(&cmd->scan_begin_arg, 39);
 	if (cmd->convert_src == TRIG_EXT)
-		err |= cfc_check_trigger_arg_max(&cmd->convert_arg, 39);
+		err |= comedi_check_trigger_arg_max(&cmd->convert_arg, 39);
 
 #define S626_MAX_SPEED	200000	/* in nanoseconds */
 #define S626_MIN_SPEED	2000000000	/* in nanoseconds */
 
 	if (cmd->scan_begin_src == TRIG_TIMER) {
-		err |= cfc_check_trigger_arg_min(&cmd->scan_begin_arg,
-						 S626_MAX_SPEED);
-		err |= cfc_check_trigger_arg_max(&cmd->scan_begin_arg,
-						 S626_MIN_SPEED);
+		err |= comedi_check_trigger_arg_min(&cmd->scan_begin_arg,
+						    S626_MAX_SPEED);
+		err |= comedi_check_trigger_arg_max(&cmd->scan_begin_arg,
+						    S626_MIN_SPEED);
 	} else {
-		/* external trigger */
-		/* should be level/edge, hi/lo specification here */
-		/* should specify multiple external triggers */
-		/* err |= cfc_check_trigger_arg_max(&cmd->scan_begin_arg, 9); */
+		/*
+		 * external trigger
+		 * should be level/edge, hi/lo specification here
+		 * should specify multiple external triggers
+		 * err |= comedi_check_trigger_arg_max(&cmd->scan_begin_arg, 9);
+		 */
 	}
 	if (cmd->convert_src == TRIG_TIMER) {
-		err |= cfc_check_trigger_arg_min(&cmd->convert_arg,
-						 S626_MAX_SPEED);
-		err |= cfc_check_trigger_arg_max(&cmd->convert_arg,
-						 S626_MIN_SPEED);
+		err |= comedi_check_trigger_arg_min(&cmd->convert_arg,
+						    S626_MAX_SPEED);
+		err |= comedi_check_trigger_arg_max(&cmd->convert_arg,
+						    S626_MIN_SPEED);
 	} else {
-		/* external trigger */
-		/* see above */
-		/* err |= cfc_check_trigger_arg_max(&cmd->scan_begin_arg, 9); */
+		/*
+		 * external trigger - see above
+		 * err |= comedi_check_trigger_arg_max(&cmd->scan_begin_arg, 9);
+		 */
 	}
 
-	err |= cfc_check_trigger_arg_is(&cmd->scan_end_arg, cmd->chanlist_len);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
+					   cmd->chanlist_len);
 
 	if (cmd->stop_src == TRIG_COUNT)
-		err |= cfc_check_trigger_arg_min(&cmd->stop_arg, 1);
+		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
 	else	/* TRIG_NONE */
-		err |= cfc_check_trigger_arg_is(&cmd->stop_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
 
 	if (err)
 		return 3;
@@ -2201,18 +2199,19 @@ static int s626_ai_cmdtest(struct comedi_device *dev,
 	if (cmd->scan_begin_src == TRIG_TIMER) {
 		arg = cmd->scan_begin_arg;
 		s626_ns_to_timer(&arg, cmd->flags);
-		err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, arg);
+		err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, arg);
 	}
 
 	if (cmd->convert_src == TRIG_TIMER) {
 		arg = cmd->convert_arg;
 		s626_ns_to_timer(&arg, cmd->flags);
-		err |= cfc_check_trigger_arg_is(&cmd->convert_arg, arg);
+		err |= comedi_check_trigger_arg_is(&cmd->convert_arg, arg);
 
 		if (cmd->scan_begin_src == TRIG_TIMER) {
 			arg = cmd->convert_arg * cmd->scan_end_arg;
-			err |= cfc_check_trigger_arg_min(&cmd->scan_begin_arg,
-							 arg);
+			err |= comedi_check_trigger_arg_min(&cmd->
+							    scan_begin_arg,
+							    arg);
 		}
 	}
 
@@ -2733,7 +2732,7 @@ static int s626_initialize(struct comedi_device *dev)
 }
 
 static int s626_auto_attach(struct comedi_device *dev,
-				      unsigned long context_unused)
+			    unsigned long context_unused)
 {
 	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
 	struct s626_private *devpriv;
diff --git a/drivers/staging/comedi/drivers/serial2002.c b/drivers/staging/comedi/drivers/serial2002.c
index 71226ee..ad35ed6 100644
--- a/drivers/staging/comedi/drivers/serial2002.c
+++ b/drivers/staging/comedi/drivers/serial2002.c
@@ -39,14 +39,12 @@ Status: in development
 #include <linux/poll.h>
 
 struct serial2002_range_table_t {
-
 	/*  HACK... */
 	int length;
 	struct comedi_krange range;
 };
 
 struct serial2002_private {
-
 	int port;		/*  /dev/ttyS<port> */
 	int speed;		/*  baudrate */
 	struct file *tty;
@@ -145,8 +143,8 @@ static void serial2002_tty_read_poll_wait(struct file *f, int timeout)
 			break;
 		}
 		do_gettimeofday(&now);
-		elapsed = (1000000 * (now.tv_sec - start.tv_sec) +
-			  now.tv_usec - start.tv_usec);
+		elapsed = 1000000 * (now.tv_sec - start.tv_sec) +
+			  now.tv_usec - start.tv_usec;
 		if (elapsed > timeout)
 			break;
 		set_current_state(TASK_INTERRUPTIBLE);
@@ -300,7 +298,6 @@ static struct serial_data serial2002_read(struct file *f, int timeout)
 		}
 	}
 	return result;
-
 }
 
 static void serial2002_write(struct file *f, struct serial_data data)
diff --git a/drivers/staging/comedi/drivers/ssv_dnp.c b/drivers/staging/comedi/drivers/ssv_dnp.c
index 848c308..acc7f34 100644
--- a/drivers/staging/comedi/drivers/ssv_dnp.c
+++ b/drivers/staging/comedi/drivers/ssv_dnp.c
@@ -127,7 +127,6 @@ static int dnp_dio_insn_config(struct comedi_device *dev,
 	outb(val, CSCDR);
 
 	return insn->n;
-
 }
 
 static int dnp_attach(struct comedi_device *dev, struct comedi_devconfig *it)
diff --git a/drivers/staging/comedi/drivers/unioxx5.c b/drivers/staging/comedi/drivers/unioxx5.c
index 7c2276a..51498b8 100644
--- a/drivers/staging/comedi/drivers/unioxx5.c
+++ b/drivers/staging/comedi/drivers/unioxx5.c
@@ -38,7 +38,6 @@ Devices: [Fastwel] UNIOxx-5 (unioxx5),
 
 */
 
-
 #include <linux/module.h>
 #include <linux/delay.h>
 #include "../comedidev.h"
@@ -81,7 +80,6 @@ struct unioxx5_subd_priv {
 
 static int __unioxx5_define_chan_offset(int chan_num)
 {
-
 	if (chan_num < 0 || chan_num > 23)
 		return -1;
 
@@ -266,7 +264,7 @@ static int __unioxx5_analog_write(struct comedi_subdevice *s,
 	/* sending for bytes to module(one byte per cycle iteration) */
 	for (i = 0; i < 4; i++) {
 		while (!((inb(usp->usp_iobase + 0)) & TxBE))
-			;	/* waits while writting will be allowed */
+			;	/* waits while writing will be allowed */
 		outb(usp->usp_extra_data[module][i], usp->usp_iobase + 6);
 	}
 
@@ -399,7 +397,7 @@ static int __unioxx5_subdev_init(struct comedi_device *dev,
 		outb(i + 1, iobase + 5);
 		outb('H', iobase + 6);	/* requests EEPROM world */
 		while (!(inb(iobase + 0) & TxBE))
-			;	/* waits while writting will be allowed */
+			;	/* waits while writing will be allowed */
 		outb(0, iobase + 6);
 
 		/* waits while reading of two bytes will be allowed */
@@ -413,8 +411,9 @@ static int __unioxx5_subdev_init(struct comedi_device *dev,
 		if (ndef_flag) {
 			usp->usp_module_type[i] = 0;
 			ndef_flag = 0;
-		} else
+		} else {
 			usp->usp_module_type[i] = inb(iobase + 6);
+		}
 
 		udelay(1);
 	}
diff --git a/drivers/staging/comedi/drivers/usbdux.c b/drivers/staging/comedi/drivers/usbdux.c
index 1cd7403..ced05e5 100644
--- a/drivers/staging/comedi/drivers/usbdux.c
+++ b/drivers/staging/comedi/drivers/usbdux.c
@@ -85,8 +85,6 @@
 
 #include "../comedi_usb.h"
 
-#include "comedi_fc.h"
-
 /* constants for firmware upload and download */
 #define USBDUX_FIRMWARE		"usbdux_firmware.bin"
 #define USBDUX_FIRMWARE_MAX_LEN	0x2000
@@ -524,19 +522,19 @@ static int usbdux_ai_cmdtest(struct comedi_device *dev,
 
 	/* Step 1 : check if triggers are trivially valid */
 
-	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_INT);
-	err |= cfc_check_trigger_src(&cmd->scan_begin_src, TRIG_TIMER);
-	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_NOW);
-	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
+	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_INT);
+	err |= comedi_check_trigger_src(&cmd->scan_begin_src, TRIG_TIMER);
+	err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_NOW);
+	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
 	/* Step 2a : make sure trigger sources are unique */
 
-	err |= cfc_check_trigger_is_unique(cmd->start_src);
-	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+	err |= comedi_check_trigger_is_unique(cmd->start_src);
+	err |= comedi_check_trigger_is_unique(cmd->stop_src);
 
 	/* Step 2b : and mutually compatible */
 
@@ -545,10 +543,10 @@ static int usbdux_ai_cmdtest(struct comedi_device *dev,
 
 	/* Step 3: check if arguments are trivially valid */
 
-	err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
 
 	if (cmd->scan_begin_src == TRIG_FOLLOW)	/* internal trigger */
-		err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
 
 	if (cmd->scan_begin_src == TRIG_TIMER) {
 		if (this_usbduxsub->high_speed) {
@@ -563,8 +561,9 @@ static int usbdux_ai_cmdtest(struct comedi_device *dev,
 			while (i < (cmd->chanlist_len))
 				i = i * 2;
 
-			err |= cfc_check_trigger_arg_min(&cmd->scan_begin_arg,
-							 1000000 / 8 * i);
+			err |= comedi_check_trigger_arg_min(&cmd->
+							    scan_begin_arg,
+							    1000000 / 8 * i);
 			/* now calc the real sampling rate with all the
 			 * rounding errors */
 			tmp_timer =
@@ -573,24 +572,26 @@ static int usbdux_ai_cmdtest(struct comedi_device *dev,
 		} else {
 			/* full speed */
 			/* 1kHz scans every USB frame */
-			err |= cfc_check_trigger_arg_min(&cmd->scan_begin_arg,
-							 1000000);
+			err |= comedi_check_trigger_arg_min(&cmd->
+							    scan_begin_arg,
+							    1000000);
 			/*
 			 * calc the real sampling rate with the rounding errors
 			 */
 			tmp_timer = ((unsigned int)(cmd->scan_begin_arg /
 						   1000000)) * 1000000;
 		}
-		err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg,
-						tmp_timer);
+		err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg,
+						   tmp_timer);
 	}
 
-	err |= cfc_check_trigger_arg_is(&cmd->scan_end_arg, cmd->chanlist_len);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
+					   cmd->chanlist_len);
 
 	if (cmd->stop_src == TRIG_COUNT)
-		err |= cfc_check_trigger_arg_min(&cmd->stop_arg, 1);
+		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
 	else	/* TRIG_NONE */
-		err |= cfc_check_trigger_arg_is(&cmd->stop_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
 
 	if (err)
 		return 3;
@@ -633,8 +634,8 @@ static int receive_dux_commands(struct comedi_device *dev, unsigned int command)
 
 	for (i = 0; i < RETRIES; i++) {
 		ret = usb_bulk_msg(usb, usb_rcvbulkpipe(usb, 8),
-				      devpriv->insn_buf, SIZEINSNBUF,
-				      &nrec, BULK_TIMEOUT);
+				   devpriv->insn_buf, SIZEINSNBUF,
+				   &nrec, BULK_TIMEOUT);
 		if (ret < 0)
 			return ret;
 		if (le16_to_cpu(devpriv->insn_buf[0]) == command)
@@ -895,7 +896,7 @@ static int usbdux_ao_cmdtest(struct comedi_device *dev,
 
 	/* Step 1 : check if triggers are trivially valid */
 
-	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_INT);
+	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_INT);
 
 	if (0) {		/* (this_usbduxsub->high_speed) */
 		/* the sampling rate is set by the coversion rate */
@@ -904,7 +905,7 @@ static int usbdux_ao_cmdtest(struct comedi_device *dev,
 		/* start a new scan (output at once) with a timer */
 		flags = TRIG_TIMER;
 	}
-	err |= cfc_check_trigger_src(&cmd->scan_begin_src, flags);
+	err |= comedi_check_trigger_src(&cmd->scan_begin_src, flags);
 
 	if (0) {		/* (this_usbduxsub->high_speed) */
 		/*
@@ -919,18 +920,18 @@ static int usbdux_ao_cmdtest(struct comedi_device *dev,
 		 */
 		flags = TRIG_NOW;
 	}
-	err |= cfc_check_trigger_src(&cmd->convert_src, flags);
+	err |= comedi_check_trigger_src(&cmd->convert_src, flags);
 
-	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
+	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
 	/* Step 2a : make sure trigger sources are unique */
 
-	err |= cfc_check_trigger_is_unique(cmd->start_src);
-	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+	err |= comedi_check_trigger_is_unique(cmd->start_src);
+	err |= comedi_check_trigger_is_unique(cmd->stop_src);
 
 	/* Step 2b : and mutually compatible */
 
@@ -939,25 +940,27 @@ static int usbdux_ao_cmdtest(struct comedi_device *dev,
 
 	/* Step 3: check if arguments are trivially valid */
 
-	err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
 
 	if (cmd->scan_begin_src == TRIG_FOLLOW)	/* internal trigger */
-		err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
 
-	if (cmd->scan_begin_src == TRIG_TIMER)
-		err |= cfc_check_trigger_arg_min(&cmd->scan_begin_arg,
-						 1000000);
+	if (cmd->scan_begin_src == TRIG_TIMER) {
+		err |= comedi_check_trigger_arg_min(&cmd->scan_begin_arg,
+						    1000000);
+	}
 
 	/* not used now, is for later use */
 	if (cmd->convert_src == TRIG_TIMER)
-		err |= cfc_check_trigger_arg_min(&cmd->convert_arg, 125000);
+		err |= comedi_check_trigger_arg_min(&cmd->convert_arg, 125000);
 
-	err |= cfc_check_trigger_arg_is(&cmd->scan_end_arg, cmd->chanlist_len);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
+					   cmd->chanlist_len);
 
 	if (cmd->stop_src == TRIG_COUNT)
-		err |= cfc_check_trigger_arg_min(&cmd->stop_arg, 1);
+		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
 	else	/* TRIG_NONE */
-		err |= cfc_check_trigger_arg_is(&cmd->stop_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
 
 	if (err)
 		return 3;
@@ -1041,7 +1044,6 @@ static int usbdux_dio_insn_bits(struct comedi_device *dev,
 				struct comedi_insn *insn,
 				unsigned int *data)
 {
-
 	struct usbdux_private *devpriv = dev->private;
 	int ret;
 
diff --git a/drivers/staging/comedi/drivers/usbduxfast.c b/drivers/staging/comedi/drivers/usbduxfast.c
index 7ce27c1..d90dc59 100644
--- a/drivers/staging/comedi/drivers/usbduxfast.c
+++ b/drivers/staging/comedi/drivers/usbduxfast.c
@@ -48,7 +48,6 @@
 #include <linux/input.h>
 #include <linux/fcntl.h>
 #include <linux/compiler.h>
-#include "comedi_fc.h"
 #include "../comedi_usb.h"
 
 /*
@@ -343,23 +342,24 @@ static int usbduxfast_ai_cmdtest(struct comedi_device *dev,
 
 	/* Step 1 : check if triggers are trivially valid */
 
-	err |= cfc_check_trigger_src(&cmd->start_src,
+	err |= comedi_check_trigger_src(&cmd->start_src,
 					TRIG_NOW | TRIG_EXT | TRIG_INT);
-	err |= cfc_check_trigger_src(&cmd->scan_begin_src,
+	err |= comedi_check_trigger_src(&cmd->scan_begin_src,
 					TRIG_FOLLOW | TRIG_EXT);
-	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_TIMER | TRIG_EXT);
-	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
+	err |= comedi_check_trigger_src(&cmd->convert_src,
+					TRIG_TIMER | TRIG_EXT);
+	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
 	/* Step 2a : make sure trigger sources are unique */
 
-	err |= cfc_check_trigger_is_unique(cmd->start_src);
-	err |= cfc_check_trigger_is_unique(cmd->scan_begin_src);
-	err |= cfc_check_trigger_is_unique(cmd->convert_src);
-	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+	err |= comedi_check_trigger_is_unique(cmd->start_src);
+	err |= comedi_check_trigger_is_unique(cmd->scan_begin_src);
+	err |= comedi_check_trigger_is_unique(cmd->convert_src);
+	err |= comedi_check_trigger_is_unique(cmd->stop_src);
 
 	/* Step 2b : and mutually compatible */
 
@@ -372,12 +372,13 @@ static int usbduxfast_ai_cmdtest(struct comedi_device *dev,
 
 	/* Step 3: check if arguments are trivially valid */
 
-	err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
 
 	if (!cmd->chanlist_len)
 		err |= -EINVAL;
 
-	err |= cfc_check_trigger_arg_is(&cmd->scan_end_arg, cmd->chanlist_len);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
+					   cmd->chanlist_len);
 
 	if (cmd->chanlist_len == 1)
 		min_sample_period = 1;
@@ -394,16 +395,16 @@ static int usbduxfast_ai_cmdtest(struct comedi_device *dev,
 
 		/* calc arg again */
 		tmp = steps / 30;
-		err |= cfc_check_trigger_arg_is(&cmd->convert_arg, tmp);
+		err |= comedi_check_trigger_arg_is(&cmd->convert_arg, tmp);
 	}
 
 	/* stop source */
 	switch (cmd->stop_src) {
 	case TRIG_COUNT:
-		err |= cfc_check_trigger_arg_min(&cmd->stop_arg, 1);
+		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
 		break;
 	case TRIG_NONE:
-		err |= cfc_check_trigger_arg_is(&cmd->stop_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
 		break;
 		/*
 		 * TRIG_EXT doesn't care since it doesn't trigger
@@ -419,7 +420,6 @@ static int usbduxfast_ai_cmdtest(struct comedi_device *dev,
 	/* step 4: fix up any arguments */
 
 	return 0;
-
 }
 
 static int usbduxfast_ai_inttrig(struct comedi_device *dev,
diff --git a/drivers/staging/comedi/drivers/usbduxsigma.c b/drivers/staging/comedi/drivers/usbduxsigma.c
index 394969b..eaa9add 100644
--- a/drivers/staging/comedi/drivers/usbduxsigma.c
+++ b/drivers/staging/comedi/drivers/usbduxsigma.c
@@ -49,7 +49,6 @@
 #include <linux/compiler.h>
 #include <asm/unaligned.h>
 
-#include "comedi_fc.h"
 #include "../comedi_usb.h"
 
 /* timeout for the USB-transfer in ms*/
@@ -243,9 +242,8 @@ static void usbduxsigma_ai_handle_urb(struct comedi_device *dev,
 		urb->dev = comedi_to_usb_dev(dev);
 		ret = usb_submit_urb(urb, GFP_ATOMIC);
 		if (ret < 0) {
-			dev_err(dev->class_dev,
-				"%s: urb resubmit failed (%d)\n",
-				__func__, ret);
+			dev_err(dev->class_dev, "urb resubmit failed (%d)\n",
+				ret);
 			if (ret == -EL2NSYNC)
 				dev_err(dev->class_dev,
 					"buggy USB host controller or bug in IRQ handler\n");
@@ -292,8 +290,8 @@ static void usbduxsigma_ai_urb_complete(struct urb *urb)
 
 	default:
 		/* a real error */
-		dev_err(dev->class_dev, "%s: non-zero urb status (%d)\n",
-			__func__, urb->status);
+		dev_err(dev->class_dev, "non-zero urb status (%d)\n",
+			urb->status);
 		async->events |= COMEDI_CB_ERROR;
 		break;
 	}
@@ -386,9 +384,8 @@ static void usbduxsigma_ao_handle_urb(struct comedi_device *dev,
 		urb->iso_frame_desc[0].status = 0;
 		ret = usb_submit_urb(urb, GFP_ATOMIC);
 		if (ret < 0) {
-			dev_err(dev->class_dev,
-				"%s: urb resubmit failed (%d)\n",
-				__func__, ret);
+			dev_err(dev->class_dev, "urb resubmit failed (%d)\n",
+				ret);
 			if (ret == -EL2NSYNC)
 				dev_err(dev->class_dev,
 					"buggy USB host controller or bug in IRQ handler\n");
@@ -423,8 +420,8 @@ static void usbduxsigma_ao_urb_complete(struct urb *urb)
 
 	default:
 		/* a real error */
-		dev_err(dev->class_dev, "%s: non-zero urb status (%d)\n",
-			__func__, urb->status);
+		dev_err(dev->class_dev, "non-zero urb status (%d)\n",
+			urb->status);
 		async->events |= COMEDI_CB_ERROR;
 		break;
 	}
@@ -488,19 +485,19 @@ static int usbduxsigma_ai_cmdtest(struct comedi_device *dev,
 
 	/* Step 1 : check if triggers are trivially valid */
 
-	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_INT);
-	err |= cfc_check_trigger_src(&cmd->scan_begin_src, TRIG_TIMER);
-	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_NOW);
-	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
+	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_INT);
+	err |= comedi_check_trigger_src(&cmd->scan_begin_src, TRIG_TIMER);
+	err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_NOW);
+	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err)
 		return 1;
 
 	/* Step 2a : make sure trigger sources are unique */
 
-	err |= cfc_check_trigger_is_unique(cmd->start_src);
-	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+	err |= comedi_check_trigger_is_unique(cmd->start_src);
+	err |= comedi_check_trigger_is_unique(cmd->stop_src);
 
 	/* Step 2b : and mutually compatible */
 
@@ -509,10 +506,10 @@ static int usbduxsigma_ai_cmdtest(struct comedi_device *dev,
 
 	/* Step 3: check if arguments are trivially valid */
 
-	err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
 
 	if (cmd->scan_begin_src == TRIG_FOLLOW)	/* internal trigger */
-		err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
 
 	if (cmd->scan_begin_src == TRIG_TIMER) {
 		unsigned int tmp;
@@ -524,27 +521,31 @@ static int usbduxsigma_ai_cmdtest(struct comedi_device *dev,
 			 * sample two channels. Thus, the more channels
 			 * are in the channel list the more time we need.
 			 */
-			err |= cfc_check_trigger_arg_min(&cmd->scan_begin_arg,
-						(1000000 / 8 * interval));
+			err |= comedi_check_trigger_arg_min(&cmd->
+							    scan_begin_arg,
+							    (1000000 / 8 *
+							     interval));
 
 			tmp = (cmd->scan_begin_arg / 125000) * 125000;
 		} else {
 			/* full speed */
 			/* 1kHz scans every USB frame */
-			err |= cfc_check_trigger_arg_min(&cmd->scan_begin_arg,
-							 1000000);
+			err |= comedi_check_trigger_arg_min(&cmd->
+							    scan_begin_arg,
+							    1000000);
 
 			tmp = (cmd->scan_begin_arg / 1000000) * 1000000;
 		}
-		err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, tmp);
+		err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, tmp);
 	}
 
-	err |= cfc_check_trigger_arg_is(&cmd->scan_end_arg, cmd->chanlist_len);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
+					   cmd->chanlist_len);
 
 	if (cmd->stop_src == TRIG_COUNT)
-		err |= cfc_check_trigger_arg_min(&cmd->stop_arg, 1);
+		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
 	else	/* TRIG_NONE */
-		err |= cfc_check_trigger_arg_is(&cmd->stop_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
 
 	if (err)
 		return 3;
@@ -856,7 +857,7 @@ static int usbduxsigma_ao_cmdtest(struct comedi_device *dev,
 
 	/* Step 1 : check if triggers are trivially valid */
 
-	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_INT);
+	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_INT);
 
 	if (high_speed) {
 		/*
@@ -868,11 +869,11 @@ static int usbduxsigma_ao_cmdtest(struct comedi_device *dev,
 		/* start a new scan (output at once) with a timer */
 		flags = TRIG_TIMER;
 	}
-	err |= cfc_check_trigger_src(&cmd->scan_begin_src, flags);
+	err |= comedi_check_trigger_src(&cmd->scan_begin_src, flags);
 
-	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_NOW);
-	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
+	err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_NOW);
+	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
 	if (err) {
 		up(&devpriv->sem);
@@ -881,8 +882,8 @@ static int usbduxsigma_ao_cmdtest(struct comedi_device *dev,
 
 	/* Step 2a : make sure trigger sources are unique */
 
-	err |= cfc_check_trigger_is_unique(cmd->start_src);
-	err |= cfc_check_trigger_is_unique(cmd->stop_src);
+	err |= comedi_check_trigger_is_unique(cmd->start_src);
+	err |= comedi_check_trigger_is_unique(cmd->stop_src);
 
 	/* Step 2b : and mutually compatible */
 
@@ -891,25 +892,27 @@ static int usbduxsigma_ao_cmdtest(struct comedi_device *dev,
 
 	/* Step 3: check if arguments are trivially valid */
 
-	err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0);
+	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
 
 	if (cmd->scan_begin_src == TRIG_FOLLOW)	/* internal trigger */
-		err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
 
-	if (cmd->scan_begin_src == TRIG_TIMER)
-		err |= cfc_check_trigger_arg_min(&cmd->scan_begin_arg,
-						 1000000);
+	if (cmd->scan_begin_src == TRIG_TIMER) {
+		err |= comedi_check_trigger_arg_min(&cmd->scan_begin_arg,
+						    1000000);
+	}
 
 	/* not used now, is for later use */
 	if (cmd->convert_src == TRIG_TIMER)
-		err |= cfc_check_trigger_arg_min(&cmd->convert_arg, 125000);
+		err |= comedi_check_trigger_arg_min(&cmd->convert_arg, 125000);
 
-	err |= cfc_check_trigger_arg_is(&cmd->scan_end_arg, cmd->chanlist_len);
+	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
+					   cmd->chanlist_len);
 
 	if (cmd->stop_src == TRIG_COUNT)
-		err |= cfc_check_trigger_arg_min(&cmd->stop_arg, 1);
+		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
 	else	/* TRIG_NONE */
-		err |= cfc_check_trigger_arg_is(&cmd->stop_arg, 0);
+		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
 
 	if (err)
 		return 3;
@@ -1071,9 +1074,8 @@ static void usbduxsigma_pwm_urb_complete(struct urb *urb)
 	default:
 		/* a real error */
 		if (devpriv->pwm_cmd_running) {
-			dev_err(dev->class_dev,
-				"%s: non-zero urb status (%d)\n",
-				__func__, urb->status);
+			dev_err(dev->class_dev, "non-zero urb status (%d)\n",
+				urb->status);
 			usbduxsigma_pwm_stop(dev, 0);	/* w/o unlink */
 		}
 		return;
@@ -1087,8 +1089,7 @@ static void usbduxsigma_pwm_urb_complete(struct urb *urb)
 	urb->status = 0;
 	ret = usb_submit_urb(urb, GFP_ATOMIC);
 	if (ret < 0) {
-		dev_err(dev->class_dev, "%s: urb resubmit failed (%d)\n",
-			__func__, ret);
+		dev_err(dev->class_dev, "urb resubmit failed (%d)\n", ret);
 		if (ret == -EL2NSYNC)
 			dev_err(dev->class_dev,
 				"buggy USB host controller or bug in IRQ handler\n");
diff --git a/drivers/staging/comedi/drivers/vmk80xx.c b/drivers/staging/comedi/drivers/vmk80xx.c
index e371183..a090668 100644
--- a/drivers/staging/comedi/drivers/vmk80xx.c
+++ b/drivers/staging/comedi/drivers/vmk80xx.c
@@ -103,11 +103,6 @@ enum vmk80xx_model {
 	VMK8061_MODEL
 };
 
-struct firmware_version {
-	unsigned char ic3_vers[32];	/* USB-Controller */
-	unsigned char ic6_vers[32];	/* CPU */
-};
-
 static const struct comedi_lrange vmk8061_range = {
 	2, {
 		UNI_RANGE(5),
@@ -156,68 +151,12 @@ static const struct vmk80xx_board vmk80xx_boardinfo[] = {
 struct vmk80xx_private {
 	struct usb_endpoint_descriptor *ep_rx;
 	struct usb_endpoint_descriptor *ep_tx;
-	struct firmware_version fw;
 	struct semaphore limit_sem;
 	unsigned char *usb_rx_buf;
 	unsigned char *usb_tx_buf;
 	enum vmk80xx_model model;
 };
 
-static int vmk80xx_check_data_link(struct comedi_device *dev)
-{
-	struct vmk80xx_private *devpriv = dev->private;
-	struct usb_device *usb = comedi_to_usb_dev(dev);
-	unsigned int tx_pipe;
-	unsigned int rx_pipe;
-	unsigned char tx[1];
-	unsigned char rx[2];
-
-	tx_pipe = usb_sndbulkpipe(usb, 0x01);
-	rx_pipe = usb_rcvbulkpipe(usb, 0x81);
-
-	tx[0] = VMK8061_CMD_RD_PWR_STAT;
-
-	/*
-	 * Check that IC6 (PIC16F871) is powered and
-	 * running and the data link between IC3 and
-	 * IC6 is working properly
-	 */
-	usb_bulk_msg(usb, tx_pipe, tx, 1, NULL, devpriv->ep_tx->bInterval);
-	usb_bulk_msg(usb, rx_pipe, rx, 2, NULL, HZ * 10);
-
-	return (int)rx[1];
-}
-
-static void vmk80xx_read_eeprom(struct comedi_device *dev, int flag)
-{
-	struct vmk80xx_private *devpriv = dev->private;
-	struct usb_device *usb = comedi_to_usb_dev(dev);
-	unsigned int tx_pipe;
-	unsigned int rx_pipe;
-	unsigned char tx[1];
-	unsigned char rx[64];
-	int cnt;
-
-	tx_pipe = usb_sndbulkpipe(usb, 0x01);
-	rx_pipe = usb_rcvbulkpipe(usb, 0x81);
-
-	tx[0] = VMK8061_CMD_RD_VERSION;
-
-	/*
-	 * Read the firmware version info of IC3 and
-	 * IC6 from the internal EEPROM of the IC
-	 */
-	usb_bulk_msg(usb, tx_pipe, tx, 1, NULL, devpriv->ep_tx->bInterval);
-	usb_bulk_msg(usb, rx_pipe, rx, 64, &cnt, HZ * 10);
-
-	rx[cnt] = '\0';
-
-	if (flag & IC3_VERSION)
-		strncpy(devpriv->fw.ic3_vers, rx + 1, 24);
-	else			/* IC6_VERSION */
-		strncpy(devpriv->fw.ic6_vers, rx + 25, 24);
-}
-
 static void vmk80xx_do_bulk_msg(struct comedi_device *dev)
 {
 	struct vmk80xx_private *devpriv = dev->private;
@@ -878,16 +817,6 @@ static int vmk80xx_auto_attach(struct comedi_device *dev,
 
 	usb_set_intfdata(intf, devpriv);
 
-	if (devpriv->model == VMK8061_MODEL) {
-		vmk80xx_read_eeprom(dev, IC3_VERSION);
-		dev_info(&intf->dev, "%s\n", devpriv->fw.ic3_vers);
-
-		if (vmk80xx_check_data_link(dev)) {
-			vmk80xx_read_eeprom(dev, IC6_VERSION);
-			dev_info(&intf->dev, "%s\n", devpriv->fw.ic6_vers);
-		}
-	}
-
 	if (devpriv->model == VMK8055_MODEL)
 		vmk80xx_reset_device(dev);
 
diff --git a/drivers/staging/comedi/kcomedilib/kcomedilib_main.c b/drivers/staging/comedi/kcomedilib/kcomedilib_main.c
index 973f544..76bf561 100644
--- a/drivers/staging/comedi/kcomedilib/kcomedilib_main.c
+++ b/drivers/staging/comedi/kcomedilib/kcomedilib_main.c
@@ -58,7 +58,7 @@ struct comedi_device *comedi_open(const char *filename)
 		retval = NULL;
 	up_read(&dev->attach_lock);
 
-	if (retval == NULL)
+	if (!retval)
 		comedi_dev_put(dev);
 
 	return retval;
diff --git a/drivers/staging/dgap/dgap.c b/drivers/staging/dgap/dgap.c
index 7184747..6766d5a 100644
--- a/drivers/staging/dgap/dgap.c
+++ b/drivers/staging/dgap/dgap.c
@@ -1361,7 +1361,6 @@ static uint dgap_get_custom_baud(struct channel_t *ch)
 {
 	u8 __iomem *vaddr;
 	ulong offset;
-	uint value;
 
 	if (!ch || ch->magic != DGAP_CHANNEL_MAGIC)
 		return 0;
@@ -1384,8 +1383,7 @@ static uint dgap_get_custom_baud(struct channel_t *ch)
 	offset = (ioread16(vaddr + ECS_SEG) << 4) + (ch->ch_portnum * 0x28)
 	       + LINE_SPEED;
 
-	value = readw(vaddr + offset);
-	return value;
+	return readw(vaddr + offset);
 }
 
 /*
@@ -2196,7 +2194,7 @@ static struct board_t *dgap_found_board(struct pci_dev *pdev, int id,
 	 * will be mapped into the low 2MB of the 4MB memory space
 	 */
 	brd->port = brd->membase + PCI_IO_OFFSET;
-	brd->port_end = brd->port + PCI_IO_SIZE;
+	brd->port_end = brd->port + PCI_IO_SIZE_DGAP;
 
 	/*
 	 * Special initialization for non-PLX boards
@@ -3979,7 +3977,6 @@ static int dgap_get_modem_info(struct channel_t *ch, unsigned int __user *value)
 	int result;
 	u8 mstat;
 	ulong lock_flags;
-	int rc;
 
 	spin_lock_irqsave(&ch->ch_lock, lock_flags);
 
@@ -4004,9 +4001,7 @@ static int dgap_get_modem_info(struct channel_t *ch, unsigned int __user *value)
 	if (mstat & D_CD(ch))
 		result |= TIOCM_CD;
 
-	rc = put_user(result, value);
-
-	return rc;
+	return put_user(result, value);
 }
 
 /*
@@ -7044,8 +7039,7 @@ static int dgap_start(void)
 
 	/* Start the poller */
 	spin_lock_irqsave(&dgap_poll_lock, flags);
-	init_timer(&dgap_poll_timer);
-	dgap_poll_timer.function = dgap_poll_handler;
+	setup_timer(&dgap_poll_timer, dgap_poll_handler, 0);
 	dgap_poll_timer.data = 0;
 	dgap_poll_time = jiffies + dgap_jiffies_from_ms(dgap_poll_tick);
 	dgap_poll_timer.expires = dgap_poll_time;
diff --git a/drivers/staging/dgap/dgap.h b/drivers/staging/dgap/dgap.h
index 6840331..a2e5b26 100644
--- a/drivers/staging/dgap/dgap.h
+++ b/drivers/staging/dgap/dgap.h
@@ -121,7 +121,7 @@
 #define PCI_IO_OFFSET		0x00200000
 
 /* Size of IO (2MB) */
-#define PCI_IO_SIZE		0x00200000
+#define PCI_IO_SIZE_DGAP	0x00200000
 
 /* Number of boards we support at once. */
 #define	MAXBOARDS	32
diff --git a/drivers/staging/dgnc/Makefile b/drivers/staging/dgnc/Makefile
index b69f7b6..995c874 100644
--- a/drivers/staging/dgnc/Makefile
+++ b/drivers/staging/dgnc/Makefile
@@ -1,5 +1,3 @@
-EXTRA_CFLAGS += -DDG_NAME=\"dgnc-1.3-16\" -DDG_PART=\"40002369_F\"
-
 obj-$(CONFIG_DGNC) += dgnc.o
 
 dgnc-objs :=   dgnc_cls.o dgnc_driver.o\
diff --git a/drivers/staging/dgnc/TODO b/drivers/staging/dgnc/TODO
index 22adff1..2b2c6ea 100644
--- a/drivers/staging/dgnc/TODO
+++ b/drivers/staging/dgnc/TODO
@@ -1,10 +1,10 @@
 * checkpatch fixes
 * remove unecessary comments
-* remove unecessary error messages. Example kzalloc() has its 
+* remove unecessary error messages. Example kzalloc() has its
   own error message. Adding an extra one is useless.
 * use goto statements for error handling when appropriate
-* there is a lot of unecessary code in the driver. It was 
+* there is a lot of unecessary code in the driver. It was
   originally a standalone driver. Remove uneeded code.
 
-Please send patches to Greg Kroah-Hartman <greg@kroah.com> and 
+Please send patches to Greg Kroah-Hartman <greg@kroah.com> and
 Cc: Lidza Louina <lidza.louina@gmail.com>
diff --git a/drivers/staging/dgnc/dgnc_cls.c b/drivers/staging/dgnc/dgnc_cls.c
index bedc522..e3564d2 100644
--- a/drivers/staging/dgnc/dgnc_cls.c
+++ b/drivers/staging/dgnc/dgnc_cls.c
@@ -11,22 +11,6 @@
  * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the
  * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
  * PURPOSE.  See the GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- *
- *	NOTE TO LINUX KERNEL HACKERS:  DO NOT REFORMAT THIS CODE!
- *
- *	This is shared code between Digi's CVS archive and the
- *	Linux Kernel sources.
- *	Changing the source just for reformatting needlessly breaks
- *	our CVS diff history.
- *
- *	Send any bug fixes/changes to:  Eng.Linux at digi dot com.
- *	Thank you.
- *
  */
 
 #include <linux/kernel.h>
@@ -92,14 +76,12 @@ struct board_ops dgnc_cls_ops = {
 	.send_immediate_char =		cls_send_immediate_char
 };
 
-
 static inline void cls_set_cts_flow_control(struct channel_t *ch)
 {
 	unsigned char lcrb = readb(&ch->ch_cls_uart->lcr);
 	unsigned char ier = readb(&ch->ch_cls_uart->ier);
 	unsigned char isr_fcr = 0;
 
-
 	/*
 	 * The Enhanced Register Set may only be accessed when
 	 * the Line Control Register is set to 0xBFh.
@@ -136,14 +118,12 @@ static inline void cls_set_cts_flow_control(struct channel_t *ch)
 
 }
 
-
 static inline void cls_set_ixon_flow_control(struct channel_t *ch)
 {
 	unsigned char lcrb = readb(&ch->ch_cls_uart->lcr);
 	unsigned char ier = readb(&ch->ch_cls_uart->ier);
 	unsigned char isr_fcr = 0;
 
-
 	/*
 	 * The Enhanced Register Set may only be accessed when
 	 * the Line Control Register is set to 0xBFh.
@@ -184,14 +164,12 @@ static inline void cls_set_ixon_flow_control(struct channel_t *ch)
 
 }
 
-
 static inline void cls_set_no_output_flow_control(struct channel_t *ch)
 {
 	unsigned char lcrb = readb(&ch->ch_cls_uart->lcr);
 	unsigned char ier = readb(&ch->ch_cls_uart->ier);
 	unsigned char isr_fcr = 0;
 
-
 	/*
 	 * The Enhanced Register Set may only be accessed when
 	 * the Line Control Register is set to 0xBFh.
@@ -230,14 +208,12 @@ static inline void cls_set_no_output_flow_control(struct channel_t *ch)
 
 }
 
-
 static inline void cls_set_rts_flow_control(struct channel_t *ch)
 {
 	unsigned char lcrb = readb(&ch->ch_cls_uart->lcr);
 	unsigned char ier = readb(&ch->ch_cls_uart->ier);
 	unsigned char isr_fcr = 0;
 
-
 	/*
 	 * The Enhanced Register Set may only be accessed when
 	 * the Line Control Register is set to 0xBFh.
@@ -266,20 +242,17 @@ static inline void cls_set_rts_flow_control(struct channel_t *ch)
 		UART_16654_FCR_TXTRIGGER_16 | UART_FCR_CLEAR_RCVR),
 		&ch->ch_cls_uart->isr_fcr);
 
-
 	ch->ch_r_watermark = 4;
 	ch->ch_r_tlevel = 8;
 
 }
 
-
 static inline void cls_set_ixoff_flow_control(struct channel_t *ch)
 {
 	unsigned char lcrb = readb(&ch->ch_cls_uart->lcr);
 	unsigned char ier = readb(&ch->ch_cls_uart->ier);
 	unsigned char isr_fcr = 0;
 
-
 	/*
 	 * The Enhanced Register Set may only be accessed when
 	 * the Line Control Register is set to 0xBFh.
@@ -316,14 +289,12 @@ static inline void cls_set_ixoff_flow_control(struct channel_t *ch)
 
 }
 
-
 static inline void cls_set_no_input_flow_control(struct channel_t *ch)
 {
 	unsigned char lcrb = readb(&ch->ch_cls_uart->lcr);
 	unsigned char ier = readb(&ch->ch_cls_uart->ier);
 	unsigned char isr_fcr = 0;
 
-
 	/*
 	 * The Enhanced Register Set may only be accessed when
 	 * the Line Control Register is set to 0xBFh.
@@ -357,7 +328,6 @@ static inline void cls_set_no_input_flow_control(struct channel_t *ch)
 
 }
 
-
 /*
  * cls_clear_break.
  * Determines whether its time to shut off break condition.
@@ -393,7 +363,6 @@ static inline void cls_clear_break(struct channel_t *ch, int force)
 	spin_unlock_irqrestore(&ch->ch_lock, flags);
 }
 
-
 /* Parse the ISR register for the specific port */
 static inline void cls_parse_isr(struct dgnc_board *brd, uint port)
 {
@@ -406,7 +375,7 @@ static inline void cls_parse_isr(struct dgnc_board *brd, uint port)
 	 * verified in the interrupt routine.
 	 */
 
-	if (port > brd->nasync)
+	if (port >= brd->nasync)
 		return;
 
 	ch = brd->channels[port];
@@ -457,7 +426,6 @@ static inline void cls_parse_isr(struct dgnc_board *brd, uint port)
 	}
 }
 
-
 /*
  * cls_param()
  * Send any/all changes to the line to the UART.
@@ -711,7 +679,6 @@ static void cls_param(struct tty_struct *tty)
 	cls_parse_modem(ch, readb(&ch->ch_cls_uart->msr));
 }
 
-
 /*
  * Our board poller function.
  */
@@ -784,7 +751,6 @@ static void cls_tasklet(unsigned long data)
 
 }
 
-
 /*
  * cls_intr()
  *
@@ -834,7 +800,6 @@ static irqreturn_t cls_intr(int irq, void *voidbrd)
 	return IRQ_HANDLED;
 }
 
-
 static void cls_disable_receiver(struct channel_t *ch)
 {
 	unsigned char tmp = readb(&ch->ch_cls_uart->ier);
@@ -843,7 +808,6 @@ static void cls_disable_receiver(struct channel_t *ch)
 	writeb(tmp, &ch->ch_cls_uart->ier);
 }
 
-
 static void cls_enable_receiver(struct channel_t *ch)
 {
 	unsigned char tmp = readb(&ch->ch_cls_uart->ier);
@@ -852,7 +816,6 @@ static void cls_enable_receiver(struct channel_t *ch)
 	writeb(tmp, &ch->ch_cls_uart->ier);
 }
 
-
 static void cls_copy_data_from_uart_to_queue(struct channel_t *ch)
 {
 	int qleft = 0;
@@ -942,7 +905,6 @@ static void cls_copy_data_from_uart_to_queue(struct channel_t *ch)
 	spin_unlock_irqrestore(&ch->ch_lock, flags);
 }
 
-
 /*
  * This function basically goes to sleep for secs, or until
  * it gets signalled that the port has fully drained.
@@ -978,7 +940,6 @@ static int cls_drain(struct tty_struct *tty, uint seconds)
 					 ((un->un_flags & UN_EMPTY) == 0));
 }
 
-
 /* Channel lock MUST be held before calling this function! */
 static void cls_flush_uart_write(struct channel_t *ch)
 {
@@ -992,7 +953,6 @@ static void cls_flush_uart_write(struct channel_t *ch)
 	ch->ch_flags |= (CH_TX_FIFO_EMPTY | CH_TX_FIFO_LWM);
 }
 
-
 /* Channel lock MUST be held before calling this function! */
 static void cls_flush_uart_read(struct channel_t *ch)
 {
@@ -1013,7 +973,6 @@ static void cls_flush_uart_read(struct channel_t *ch)
 	udelay(10);
 }
 
-
 static void cls_copy_data_from_queue_to_uart(struct channel_t *ch)
 {
 	ushort head;
@@ -1029,22 +988,16 @@ static void cls_copy_data_from_queue_to_uart(struct channel_t *ch)
 	spin_lock_irqsave(&ch->ch_lock, flags);
 
 	/* No data to write to the UART */
-	if (ch->ch_w_tail == ch->ch_w_head) {
-		spin_unlock_irqrestore(&ch->ch_lock, flags);
-		return;
-	}
+	if (ch->ch_w_tail == ch->ch_w_head)
+		goto exit_unlock;
 
 	/* If port is "stopped", don't send any data to the UART */
 	if ((ch->ch_flags & CH_FORCED_STOP) ||
-				 (ch->ch_flags & CH_BREAK_SENDING)) {
-		spin_unlock_irqrestore(&ch->ch_lock, flags);
-		return;
-	}
+				 (ch->ch_flags & CH_BREAK_SENDING))
+		goto exit_unlock;
 
-	if (!(ch->ch_flags & (CH_TX_FIFO_EMPTY | CH_TX_FIFO_LWM))) {
-		spin_unlock_irqrestore(&ch->ch_lock, flags);
-		return;
-	}
+	if (!(ch->ch_flags & (CH_TX_FIFO_EMPTY | CH_TX_FIFO_LWM)))
+		goto exit_unlock;
 
 	n = 32;
 
@@ -1094,10 +1047,10 @@ static void cls_copy_data_from_queue_to_uart(struct channel_t *ch)
 	if (len_written > 0)
 		ch->ch_flags &= ~(CH_TX_FIFO_EMPTY | CH_TX_FIFO_LWM);
 
+exit_unlock:
 	spin_unlock_irqrestore(&ch->ch_lock, flags);
 }
 
-
 static void cls_parse_modem(struct channel_t *ch, unsigned char signals)
 {
 	unsigned char msignals = signals;
@@ -1162,7 +1115,6 @@ static void cls_parse_modem(struct channel_t *ch, unsigned char signals)
 	spin_unlock_irqrestore(&ch->ch_lock, flags);
 }
 
-
 /* Make the UART raise any of the output signals we want up */
 static void cls_assert_modem_signals(struct channel_t *ch)
 {
@@ -1182,7 +1134,6 @@ static void cls_assert_modem_signals(struct channel_t *ch)
 	udelay(10);
 }
 
-
 static void cls_send_start_character(struct channel_t *ch)
 {
 	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
@@ -1194,7 +1145,6 @@ static void cls_send_start_character(struct channel_t *ch)
 	}
 }
 
-
 static void cls_send_stop_character(struct channel_t *ch)
 {
 	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
@@ -1206,7 +1156,6 @@ static void cls_send_stop_character(struct channel_t *ch)
 	}
 }
 
-
 /* Inits UART */
 static void cls_uart_init(struct channel_t *ch)
 {
@@ -1244,7 +1193,6 @@ static void cls_uart_init(struct channel_t *ch)
 	readb(&ch->ch_cls_uart->msr);
 }
 
-
 /*
  * Turns off UART.
  */
@@ -1253,7 +1201,6 @@ static void cls_uart_off(struct channel_t *ch)
 	writeb(0, &ch->ch_cls_uart->ier);
 }
 
-
 /*
  * cls_get_uarts_bytes_left.
  * Returns 0 is nothing left in the FIFO, returns 1 otherwise.
@@ -1283,7 +1230,6 @@ static uint cls_get_uart_bytes_left(struct channel_t *ch)
 	return left;
 }
 
-
 /*
  * cls_send_break.
  * Starts sending a break thru the UART.
@@ -1326,7 +1272,6 @@ static void cls_send_break(struct channel_t *ch, int msecs)
 	}
 }
 
-
 /*
  * cls_send_immediate_char.
  * Sends a specific character as soon as possible to the UART,
@@ -1348,7 +1293,6 @@ static void cls_vpd(struct dgnc_board *brd)
 	u8 __iomem           *re_map_vpdbase;/* Remapped memory of the card */
 	int i = 0;
 
-
 	vpdbase = pci_resource_start(brd->pdev, 3);
 
 	/* No VPD */
@@ -1370,4 +1314,3 @@ static void cls_vpd(struct dgnc_board *brd)
 	if (re_map_vpdbase)
 		iounmap(re_map_vpdbase);
 }
-
diff --git a/drivers/staging/dgnc/dgnc_cls.h b/drivers/staging/dgnc/dgnc_cls.h
index 465d79a..2597e36 100644
--- a/drivers/staging/dgnc/dgnc_cls.h
+++ b/drivers/staging/dgnc/dgnc_cls.h
@@ -11,21 +11,11 @@
  * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the
  * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
  * PURPOSE.  See the GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- *	NOTE: THIS IS A SHARED HEADER. DO NOT CHANGE CODING STYLE!!!
- *
  */
 
 #ifndef __DGNC_CLS_H
 #define __DGNC_CLS_H
 
-#include "dgnc_types.h"
-
-
 /************************************************************************
  * Per channel/port Classic UART structure				*
  ************************************************************************
@@ -35,15 +25,25 @@
  *			U = Unused.					*
  ************************************************************************/
 
+/*
+ * txrx    : WR RHR/THR - Holding reg
+ * ier     : WR IER - Interrupt Enable Reg
+ * isr_fcr : WR ISR/FCR - Interrupt Status Reg/Fifo Control Reg
+ * lcr     : WR LCR - Line Control Reg
+ * mcr     : WR MCR - Modem Control Reg
+ * lsr     : WR LSR - Line Status Reg
+ * msr     : WR MSG - Modem Status Reg
+ * spr     : WR SPR - Scratch pad Reg
+ */
 struct cls_uart_struct {
-	u8 txrx;		/* WR  RHR/THR - Holding Reg */
-	u8 ier;		/* WR  IER - Interrupt Enable Reg */
-	u8 isr_fcr;		/* WR  ISR/FCR - Interrupt Status Reg/Fifo Control Reg */
-	u8 lcr;		/* WR  LCR - Line Control Reg */
-	u8 mcr;		/* WR  MCR - Modem Control Reg */
-	u8 lsr;		/* WR  LSR - Line Status Reg */
-	u8 msr;		/* WR  MSR - Modem Status Reg */
-	u8 spr;		/* WR  SPR - Scratch Pad Reg */
+	u8 txrx;
+	u8 ier;
+	u8 isr_fcr;
+	u8 lcr;
+	u8 mcr;
+	u8 lsr;
+	u8 msr;
+	u8 spr;
 };
 
 /* Where to read the interrupt register (8bits) */
@@ -51,18 +51,15 @@ struct cls_uart_struct {
 
 #define UART_EXAR654_ENHANCED_REGISTER_SET 0xBF
 
-#define UART_16654_FCR_TXTRIGGER_8	0x0
 #define UART_16654_FCR_TXTRIGGER_16	0x10
-#define UART_16654_FCR_TXTRIGGER_32	0x20
-#define UART_16654_FCR_TXTRIGGER_56	0x30
-
-#define UART_16654_FCR_RXTRIGGER_8	0x0
 #define UART_16654_FCR_RXTRIGGER_16	0x40
 #define UART_16654_FCR_RXTRIGGER_56	0x80
-#define UART_16654_FCR_RXTRIGGER_60     0xC0
 
-#define UART_IIR_CTSRTS			0x20	/* Received CTS/RTS change of state */
-#define UART_IIR_RDI_TIMEOUT		0x0C    /* Receiver data TIMEOUT */
+/* Received CTS/RTS change of state */
+#define UART_IIR_CTSRTS			0x20
+
+/* Receiver data TIMEOUT */
+#define UART_IIR_RDI_TIMEOUT		0x0C
 
 /*
  * These are the EXTENDED definitions for the Exar 654's Interrupt
@@ -73,10 +70,6 @@ struct cls_uart_struct {
 #define UART_EXAR654_EFR_IXOFF    0x8     /* Transmit Xon1/Xoff1 */
 #define UART_EXAR654_EFR_RTSDTR   0x40    /* Auto RTS/DTR Flow Control Enable */
 #define UART_EXAR654_EFR_CTSDSR   0x80    /* Auto CTS/DSR Flow COntrol Enable */
-
-#define UART_EXAR654_XOFF_DETECT  0x1     /* Indicates whether chip saw an incoming XOFF char  */
-#define UART_EXAR654_XON_DETECT   0x2     /* Indicates whether chip saw an incoming XON char */
-
 #define UART_EXAR654_IER_XOFF     0x20    /* Xoff Interrupt Enable */
 #define UART_EXAR654_IER_RTSDTR   0x40    /* Output Interrupt Enable */
 #define UART_EXAR654_IER_CTSDSR   0x80    /* Input Interrupt Enable */
diff --git a/drivers/staging/dgnc/dgnc_driver.c b/drivers/staging/dgnc/dgnc_driver.c
index f177d3a..805dc61 100644
--- a/drivers/staging/dgnc/dgnc_driver.c
+++ b/drivers/staging/dgnc/dgnc_driver.c
@@ -11,22 +11,6 @@
  * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the
  * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
  * PURPOSE.  See the GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- *
- *	NOTE TO LINUX KERNEL HACKERS:  DO NOT REFORMAT THIS CODE!
- *
- *	This is shared code between Digi's CVS archive and the
- *	Linux Kernel sources.
- *	Changing the source just for reformatting needlessly breaks
- *	our CVS diff history.
- *
- *	Send any bug fixes/changes to:  Eng.Linux at digi dot com.
- *	Thank you.
- *
  */
 
 
@@ -37,7 +21,6 @@
 #include <linux/sched.h>
 #include "dgnc_driver.h"
 #include "dgnc_pci.h"
-#include "dpacompat.h"
 #include "dgnc_mgmt.h"
 #include "dgnc_tty.h"
 #include "dgnc_cls.h"
@@ -60,7 +43,8 @@ static void		dgnc_init_globals(void);
 static int		dgnc_found_board(struct pci_dev *pdev, int id);
 static void		dgnc_cleanup_board(struct dgnc_board *brd);
 static void		dgnc_poll_handler(ulong dummy);
-static int		dgnc_init_one(struct pci_dev *pdev, const struct pci_device_id *ent);
+static int		dgnc_init_one(struct pci_dev *pdev,
+				      const struct pci_device_id *ent);
 static void		dgnc_do_remap(struct dgnc_board *brd);
 
 /*
@@ -92,8 +76,8 @@ static struct class *dgnc_class;
  * Poller stuff
  */
 static DEFINE_SPINLOCK(dgnc_poll_lock); /* Poll scheduling lock */
-static ulong		dgnc_poll_time;				/* Time of next poll */
-static uint		dgnc_poll_stop;				/* Used to tell poller to stop */
+static ulong		dgnc_poll_time; /* Time of next poll */
+static uint		dgnc_poll_stop; /* Used to tell poller to stop */
 static struct timer_list dgnc_poll_timer;
 
 
@@ -139,14 +123,6 @@ static struct pci_driver dgnc_driver = {
 	.id_table       = dgnc_pci_tbl,
 };
 
-
-char *dgnc_state_text[] = {
-	"Board Failed",
-	"Board Found",
-	"Board READY",
-};
-
-
 /************************************************************************
  *
  * Driver load/unload functions
@@ -214,7 +190,7 @@ static int __init dgnc_init_module(void)
 	 * If something went wrong in the scan, bail out of driver.
 	 */
 	if (rc < 0) {
-		/* Only unregister the pci driver if it was actually registered. */
+		/* Only unregister if it was actually registered. */
 		if (dgnc_NumBoards)
 			pci_unregister_driver(&dgnc_driver);
 		else
@@ -251,9 +227,9 @@ static int dgnc_start(void)
 	 * Register management/dpa devices
 	 */
 	rc = register_chrdev(0, "dgnc", &dgnc_BoardFops);
-	if (rc <= 0) {
+	if (rc < 0) {
 		pr_err(DRVSTR ": Can't register dgnc driver device (%d)\n", rc);
-		return -ENXIO;
+		return rc;
 	}
 	dgnc_Major = rc;
 
@@ -285,9 +261,7 @@ static int dgnc_start(void)
 
 	/* Start the poller */
 	spin_lock_irqsave(&dgnc_poll_lock, flags);
-	init_timer(&dgnc_poll_timer);
-	dgnc_poll_timer.function = dgnc_poll_handler;
-	dgnc_poll_timer.data = 0;
+	setup_timer(&dgnc_poll_timer, dgnc_poll_handler, 0);
 	dgnc_poll_time = jiffies + dgnc_jiffies_from_ms(dgnc_poll_tick);
 	dgnc_poll_timer.expires = dgnc_poll_time;
 	spin_unlock_irqrestore(&dgnc_poll_lock, flags);
@@ -364,7 +338,7 @@ static void dgnc_cleanup_board(struct dgnc_board *brd)
 
 		spin_lock_irqsave(&dgnc_global_lock, flags);
 		brd->msgbuf = NULL;
-		printk("%s", brd->msgbuf_head);
+		dev_dbg(&brd->pdev->dev, "%s\n", brd->msgbuf_head);
 		kfree(brd->msgbuf_head);
 		brd->msgbuf_head = NULL;
 		spin_unlock_irqrestore(&dgnc_global_lock, flags);
@@ -410,7 +384,7 @@ static int dgnc_found_board(struct pci_dev *pdev, int id)
 		return -ENOMEM;
 
 	/* make a temporary message buffer for the boot messages */
-	brd->msgbuf_head = kzalloc(sizeof(u8) * 8192, GFP_KERNEL);
+	brd->msgbuf_head = kcalloc(8192, sizeof(u8), GFP_KERNEL);
 	brd->msgbuf = brd->msgbuf_head;
 
 	if (!brd->msgbuf) {
@@ -553,7 +527,7 @@ static int dgnc_found_board(struct pci_dev *pdev, int id)
 
 		if (brd->re_map_membase) {
 
-			/* After remap is complete, we need to read and store the dvid */
+			/* Read and store the dvid after remapping */
 			brd->dvid = readb(brd->re_map_membase + 0x8D);
 
 			/* Get and store the board VPD, if it exists */
@@ -574,29 +548,19 @@ static int dgnc_found_board(struct pci_dev *pdev, int id)
 
 	rc = dgnc_tty_register(brd);
 	if (rc < 0) {
-		dgnc_tty_uninit(brd);
 		pr_err(DRVSTR ": Can't register tty devices (%d)\n", rc);
-		brd->state = BOARD_FAILED;
-		brd->dpastatus = BD_NOFEP;
 		goto failed;
 	}
 
 	rc = dgnc_finalize_board_init(brd);
 	if (rc < 0) {
 		pr_err(DRVSTR ": Can't finalize board init (%d)\n", rc);
-		brd->state = BOARD_FAILED;
-		brd->dpastatus = BD_NOFEP;
-
 		goto failed;
 	}
 
 	rc = dgnc_tty_init(brd);
 	if (rc < 0) {
-		dgnc_tty_uninit(brd);
 		pr_err(DRVSTR ": Can't init tty devices (%d)\n", rc);
-		brd->state = BOARD_FAILED;
-		brd->dpastatus = BD_NOFEP;
-
 		goto failed;
 	}
 
@@ -606,11 +570,13 @@ static int dgnc_found_board(struct pci_dev *pdev, int id)
 	dgnc_create_ports_sysfiles(brd);
 
 	/* init our poll helper tasklet */
-	tasklet_init(&brd->helper_tasklet, brd->bd_ops->tasklet, (unsigned long) brd);
+	tasklet_init(&brd->helper_tasklet,
+		     brd->bd_ops->tasklet,
+		     (unsigned long) brd);
 
 	spin_lock_irqsave(&dgnc_global_lock, flags);
 	brd->msgbuf = NULL;
-	printk("%s", brd->msgbuf_head);
+	dev_dbg(&brd->pdev->dev, "%s\n", brd->msgbuf_head);
 	kfree(brd->msgbuf_head);
 	brd->msgbuf_head = NULL;
 	spin_unlock_irqrestore(&dgnc_global_lock, flags);
@@ -628,6 +594,9 @@ static int dgnc_found_board(struct pci_dev *pdev, int id)
 	return 0;
 
 failed:
+	dgnc_tty_uninit(brd);
+	brd->state = BOARD_FAILED;
+	brd->dpastatus = BD_NOFEP;
 
 	return -ENXIO;
 
@@ -708,7 +677,7 @@ static void dgnc_poll_handler(ulong dummy)
 
 		spin_lock_irqsave(&brd->bd_lock, flags);
 
-		/* If board is in a failed state, don't bother scheduling a tasklet */
+		/* If board is in a failed state don't schedule a tasklet */
 		if (brd->state == BOARD_FAILED) {
 			spin_unlock_irqrestore(&brd->bd_lock, flags);
 			continue;
@@ -729,11 +698,9 @@ static void dgnc_poll_handler(ulong dummy)
 	new_time = dgnc_poll_time - jiffies;
 
 	if ((ulong) new_time >= 2 * dgnc_poll_tick)
-		dgnc_poll_time = jiffies +  dgnc_jiffies_from_ms(dgnc_poll_tick);
+		dgnc_poll_time = jiffies + dgnc_jiffies_from_ms(dgnc_poll_tick);
 
-	init_timer(&dgnc_poll_timer);
-	dgnc_poll_timer.function = dgnc_poll_handler;
-	dgnc_poll_timer.data = 0;
+	setup_timer(&dgnc_poll_timer, dgnc_poll_handler, 0);
 	dgnc_poll_timer.expires = dgnc_poll_time;
 	spin_unlock_irqrestore(&dgnc_poll_lock, flags);
 
diff --git a/drivers/staging/dgnc/dgnc_driver.h b/drivers/staging/dgnc/dgnc_driver.h
index a8157eb..f77fed5 100644
--- a/drivers/staging/dgnc/dgnc_driver.h
+++ b/drivers/staging/dgnc/dgnc_driver.h
@@ -12,12 +12,6 @@
  * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
  * PURPOSE.  See the GNU General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- *	NOTE: THIS IS A SHARED HEADER. DO NOT CHANGE CODING STYLE!!!
- *
  *************************************************************************
  *
  * Driver includes
@@ -31,9 +25,7 @@
 #include <linux/tty.h>	  /* To pick up the various tty structs/defines */
 #include <linux/interrupt.h>	/* For irqreturn_t type */
 
-#include "dgnc_types.h"		/* Additional types needed by the Digi header files */
 #include "digi.h"		/* Digi specific ioctl header */
-#include "dgnc_kcompat.h"	/* Kernel 2.4/2.6 compat includes */
 #include "dgnc_sysfs.h"		/* Support for SYSFS */
 
 /*************************************************************************
@@ -46,6 +38,7 @@
 #define	PROCSTR		"dgnc"			/* /proc entries	 */
 #define	DEVSTR		"/dev/dg/dgnc"		/* /dev entries		 */
 #define	DRVSTR		"dgnc"			/* Driver name string	 */
+#define	DG_PART		"40002369_F"		/* RPM part number	 */
 
 #define TRC_TO_CONSOLE 1
 
@@ -211,8 +204,8 @@ struct dgnc_board {
 	struct tty_driver	PrintDriver;
 	char		PrintName[200];
 
-	uint		dgnc_Major_Serial_Registered;
-	uint		dgnc_Major_TransparentPrint_Registered;
+	bool		dgnc_Major_Serial_Registered;
+	bool		dgnc_Major_TransparentPrint_Registered;
 
 	uint		dgnc_Serial_Major;
 	uint		dgnc_TransparentPrint_Major;
@@ -398,11 +391,10 @@ struct channel_t {
 /*
  * Our Global Variables.
  */
-extern uint		dgnc_Major;		/* Our driver/mgmt major	*/
-extern int		dgnc_poll_tick;		/* Poll interval - 20 ms	*/
-extern spinlock_t	dgnc_global_lock;	/* Driver global spinlock	*/
-extern uint		dgnc_NumBoards;		/* Total number of boards	*/
-extern struct dgnc_board	*dgnc_Board[MAXBOARDS];	/* Array of board structs	*/
-extern char		*dgnc_state_text[];	/* Array of state text		*/
+extern uint		dgnc_Major;		/* Our driver/mgmt major */
+extern int		dgnc_poll_tick;		/* Poll interval - 20 ms */
+extern spinlock_t	dgnc_global_lock;	/* Driver global spinlock */
+extern uint		dgnc_NumBoards;		/* Total number of boards */
+extern struct dgnc_board	*dgnc_Board[MAXBOARDS];	/* Array of board structs */
 
 #endif
diff --git a/drivers/staging/dgnc/dgnc_kcompat.h b/drivers/staging/dgnc/dgnc_kcompat.h
deleted file mode 100644
index 566cad0..0000000
--- a/drivers/staging/dgnc/dgnc_kcompat.h
+++ /dev/null
@@ -1,46 +0,0 @@
-/*
- * Copyright 2004 Digi International (www.digi.com)
- *      Scott H Kilau <Scott_Kilau at digi dot com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the
- * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
- * PURPOSE.  See the GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- *	NOTE: THIS IS A SHARED HEADER. DO NOT CHANGE CODING STYLE!!!
- *
- *************************************************************************
- *
- * This file is intended to contain all the kernel "differences" between the
- * various kernels that we support.
- *
- *************************************************************************/
-
-#ifndef __DGNC_KCOMPAT_H
-#define __DGNC_KCOMPAT_H
-
-#if !defined(TTY_FLIPBUF_SIZE)
-# define TTY_FLIPBUF_SIZE 512
-#endif
-
-
-/* Sparse stuff */
-# ifndef __user
-#  define __user
-#  define __kernel
-#  define __safe
-#  define __force
-#  define __chk_user_ptr(x) (void)0
-# endif
-
-
-#endif /* ! __DGNC_KCOMPAT_H */
diff --git a/drivers/staging/dgnc/dgnc_mgmt.c b/drivers/staging/dgnc/dgnc_mgmt.c
index 5544a8e7..b13318a 100644
--- a/drivers/staging/dgnc/dgnc_mgmt.c
+++ b/drivers/staging/dgnc/dgnc_mgmt.c
@@ -11,22 +11,6 @@
  * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the
  * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
  * PURPOSE.  See the GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- *
- *	NOTE TO LINUX KERNEL HACKERS:  DO NOT REFORMAT THIS CODE!
- *
- *	This is shared code between Digi's CVS archive and the
- *	Linux Kernel sources.
- *	Changing the source just for reformatting needlessly breaks
- *	our CVS diff history.
- *
- *	Send any bug fixes/changes to:  Eng.Linux at digi dot com.
- *	Thank you.
- *
  */
 
 /************************************************************************
@@ -46,9 +30,7 @@
 
 #include "dgnc_driver.h"
 #include "dgnc_pci.h"
-#include "dgnc_kcompat.h"	/* Kernel 2.4/2.6 compat includes */
 #include "dgnc_mgmt.h"
-#include "dpacompat.h"
 
 
 /* Our "in use" variables, to enforce 1 open only */
@@ -153,8 +135,7 @@ long dgnc_mgmt_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 		if (copy_from_user(&brd, uarg, sizeof(int)))
 			return -EFAULT;
 
-		if ((brd < 0) || (brd > dgnc_NumBoards) ||
-		    (dgnc_NumBoards == 0))
+		if (brd < 0 || brd >= dgnc_NumBoards)
 			return -ENODEV;
 
 		memset(&di, 0, sizeof(di));
@@ -196,11 +177,11 @@ long dgnc_mgmt_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 		channel = ni.channel;
 
 		/* Verify boundaries on board */
-		if ((board > dgnc_NumBoards) || (dgnc_NumBoards == 0))
+		if (board >= dgnc_NumBoards)
 			return -ENODEV;
 
 		/* Verify boundaries on channel */
-		if ((channel < 0) || (channel > dgnc_Board[board]->nasync))
+		if (channel >= dgnc_Board[board]->nasync)
 			return -ENODEV;
 
 		ch = dgnc_Board[board]->channels[channel];
diff --git a/drivers/staging/dgnc/dgnc_mgmt.h b/drivers/staging/dgnc/dgnc_mgmt.h
index 567f687..708abe9 100644
--- a/drivers/staging/dgnc/dgnc_mgmt.h
+++ b/drivers/staging/dgnc/dgnc_mgmt.h
@@ -11,12 +11,6 @@
  * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the
  * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
  * PURPOSE.  See the GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- *	NOTE: THIS IS A SHARED HEADER. DO NOT CHANGE CODING STYLE!!!
  */
 
 #ifndef __DGNC_MGMT_H
diff --git a/drivers/staging/dgnc/dgnc_neo.c b/drivers/staging/dgnc/dgnc_neo.c
index c9a8a98..f5a4d36 100644
--- a/drivers/staging/dgnc/dgnc_neo.c
+++ b/drivers/staging/dgnc/dgnc_neo.c
@@ -11,22 +11,6 @@
  * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the
  * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
  * PURPOSE.  See the GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- *
- *	NOTE TO LINUX KERNEL HACKERS:  DO NOT REFORMAT THIS CODE!
- *
- *	This is shared code between Digi's CVS archive and the
- *	Linux Kernel sources.
- *	Changing the source just for reformatting needlessly breaks
- *	our CVS diff history.
- *
- *	Send any bug fixes/changes to:  Eng.Linux at digi dot com.
- *	Thank you.
- *
  */
 
 
@@ -119,7 +103,7 @@ static inline void neo_set_cts_flow_control(struct channel_t *ch)
 
 	/* Turn on auto CTS flow control */
 #if 1
-	ier |= (UART_17158_IER_CTSDSR);
+	ier |= UART_17158_IER_CTSDSR;
 #else
 	ier &= ~(UART_17158_IER_CTSDSR);
 #endif
@@ -127,7 +111,7 @@ static inline void neo_set_cts_flow_control(struct channel_t *ch)
 	efr |= (UART_17158_EFR_ECB | UART_17158_EFR_CTSDSR);
 
 	/* Turn off auto Xon flow control */
-	efr &= ~(UART_17158_EFR_IXON);
+	efr &= ~UART_17158_EFR_IXON;
 
 	/* Why? Becuz Exar's spec says we have to zero it out before setting it */
 	writeb(0, &ch->ch_neo_uart->efr);
@@ -155,15 +139,15 @@ static inline void neo_set_rts_flow_control(struct channel_t *ch)
 
 	/* Turn on auto RTS flow control */
 #if 1
-	ier |= (UART_17158_IER_RTSDTR);
+	ier |= UART_17158_IER_RTSDTR;
 #else
 	ier &= ~(UART_17158_IER_RTSDTR);
 #endif
 	efr |= (UART_17158_EFR_ECB | UART_17158_EFR_RTSDTR);
 
 	/* Turn off auto Xoff flow control */
-	ier &= ~(UART_17158_IER_XOFF);
-	efr &= ~(UART_17158_EFR_IXOFF);
+	ier &= ~UART_17158_IER_XOFF;
+	efr &= ~UART_17158_EFR_IXOFF;
 
 	/* Why? Becuz Exar's spec says we have to zero it out before setting it */
 	writeb(0, &ch->ch_neo_uart->efr);
@@ -185,7 +169,7 @@ static inline void neo_set_rts_flow_control(struct channel_t *ch)
 	 * RTS/DTR# output pin (MCR bit-0 or 1 to logic 1 after
 	 * it is enabled.
 	 */
-	ch->ch_mostat |= (UART_MCR_RTS);
+	ch->ch_mostat |= UART_MCR_RTS;
 
 	neo_pci_posting_flush(ch->ch_bd);
 }
@@ -197,8 +181,8 @@ static inline void neo_set_ixon_flow_control(struct channel_t *ch)
 	unsigned char efr = readb(&ch->ch_neo_uart->efr);
 
 	/* Turn off auto CTS flow control */
-	ier &= ~(UART_17158_IER_CTSDSR);
-	efr &= ~(UART_17158_EFR_CTSDSR);
+	ier &= ~UART_17158_IER_CTSDSR;
+	efr &= ~UART_17158_EFR_CTSDSR;
 
 	/* Turn on auto Xon flow control */
 	efr |= (UART_17158_EFR_ECB | UART_17158_EFR_IXON);
@@ -234,11 +218,11 @@ static inline void neo_set_ixoff_flow_control(struct channel_t *ch)
 	unsigned char efr = readb(&ch->ch_neo_uart->efr);
 
 	/* Turn off auto RTS flow control */
-	ier &= ~(UART_17158_IER_RTSDTR);
-	efr &= ~(UART_17158_EFR_RTSDTR);
+	ier &= ~UART_17158_IER_RTSDTR;
+	efr &= ~UART_17158_EFR_RTSDTR;
 
 	/* Turn on auto Xoff flow control */
-	ier |= (UART_17158_IER_XOFF);
+	ier |= UART_17158_IER_XOFF;
 	efr |= (UART_17158_EFR_ECB | UART_17158_EFR_IXOFF);
 
 	/* Why? Becuz Exar's spec says we have to zero it out before setting it */
@@ -272,11 +256,11 @@ static inline void neo_set_no_input_flow_control(struct channel_t *ch)
 	unsigned char efr = readb(&ch->ch_neo_uart->efr);
 
 	/* Turn off auto RTS flow control */
-	ier &= ~(UART_17158_IER_RTSDTR);
-	efr &= ~(UART_17158_EFR_RTSDTR);
+	ier &= ~UART_17158_IER_RTSDTR;
+	efr &= ~UART_17158_EFR_RTSDTR;
 
 	/* Turn off auto Xoff flow control */
-	ier &= ~(UART_17158_IER_XOFF);
+	ier &= ~UART_17158_IER_XOFF;
 	if (ch->ch_c_iflag & IXON)
 		efr &= ~(UART_17158_EFR_IXOFF);
 	else
@@ -312,12 +296,12 @@ static inline void neo_set_no_output_flow_control(struct channel_t *ch)
 	unsigned char efr = readb(&ch->ch_neo_uart->efr);
 
 	/* Turn off auto CTS flow control */
-	ier &= ~(UART_17158_IER_CTSDSR);
-	efr &= ~(UART_17158_EFR_CTSDSR);
+	ier &= ~UART_17158_IER_CTSDSR;
+	efr &= ~UART_17158_EFR_CTSDSR;
 
 	/* Turn off auto Xon flow control */
 	if (ch->ch_c_iflag & IXOFF)
-		efr &= ~(UART_17158_EFR_IXON);
+		efr &= ~UART_17158_EFR_IXON;
 	else
 		efr &= ~(UART_17158_EFR_ECB | UART_17158_EFR_IXON);
 
@@ -407,7 +391,7 @@ static inline void neo_parse_isr(struct dgnc_board *brd, uint port)
 	if (!brd || brd->magic != DGNC_BOARD_MAGIC)
 		return;
 
-	if (port > brd->maxports)
+	if (port >= brd->maxports)
 		return;
 
 	ch = brd->channels[port];
@@ -537,7 +521,7 @@ static inline void neo_parse_lsr(struct dgnc_board *brd, uint port)
 	if (!brd || brd->magic != DGNC_BOARD_MAGIC)
 		return;
 
-	if (port > brd->maxports)
+	if (port >= brd->maxports)
 		return;
 
 	ch = brd->channels[port];
@@ -1019,7 +1003,7 @@ static irqreturn_t neo_intr(int irq, void *voidbrd)
 			 */
 
 			/* Verify the port is in range. */
-			if (port > brd->nasync)
+			if (port >= brd->nasync)
 				continue;
 
 			ch = brd->channels[port];
@@ -1203,7 +1187,7 @@ static void neo_copy_data_from_uart_to_queue(struct channel_t *ch)
 		 * IBM pSeries platform.
 		 * 15 bytes max appears to be the magic number.
 		 */
-		n = min((uint) n, (uint) 12);
+		n = min_t(uint, n, 12);
 
 		/*
 		 * Since we are grabbing the linestatus register, which
@@ -1436,16 +1420,13 @@ static void neo_copy_data_from_queue_to_uart(struct channel_t *ch)
 	spin_lock_irqsave(&ch->ch_lock, flags);
 
 	/* No data to write to the UART */
-	if (ch->ch_w_tail == ch->ch_w_head) {
-		spin_unlock_irqrestore(&ch->ch_lock, flags);
-		return;
-	}
+	if (ch->ch_w_tail == ch->ch_w_head)
+		goto exit_unlock;
 
 	/* If port is "stopped", don't send any data to the UART */
-	if ((ch->ch_flags & CH_FORCED_STOP) || (ch->ch_flags & CH_BREAK_SENDING)) {
-		spin_unlock_irqrestore(&ch->ch_lock, flags);
-		return;
-	}
+	if ((ch->ch_flags & CH_FORCED_STOP) ||
+		 (ch->ch_flags & CH_BREAK_SENDING))
+		goto exit_unlock;
 
 	/*
 	 * If FIFOs are disabled. Send data directly to txrx register
@@ -1486,27 +1467,23 @@ static void neo_copy_data_from_queue_to_uart(struct channel_t *ch)
 			ch->ch_w_tail &= WQUEUEMASK;
 			ch->ch_txcount++;
 		}
-		spin_unlock_irqrestore(&ch->ch_lock, flags);
-		return;
+
+		goto exit_unlock;
 	}
 
 	/*
 	 * We have to do it this way, because of the EXAR TXFIFO count bug.
 	 */
 	if ((ch->ch_bd->dvid & 0xf0) < UART_XR17E158_DVID) {
-		if (!(ch->ch_flags & (CH_TX_FIFO_EMPTY | CH_TX_FIFO_LWM))) {
-			spin_unlock_irqrestore(&ch->ch_lock, flags);
-			return;
-		}
+		if (!(ch->ch_flags & (CH_TX_FIFO_EMPTY | CH_TX_FIFO_LWM)))
+			goto exit_unlock;
 
 		len_written = 0;
 
 		n = readb(&ch->ch_neo_uart->tfifo);
 
-		if ((unsigned int) n > ch->ch_t_tlevel) {
-			spin_unlock_irqrestore(&ch->ch_lock, flags);
-			return;
-		}
+		if ((unsigned int) n > ch->ch_t_tlevel)
+			goto exit_unlock;
 
 		n = UART_17158_TX_FIFOSIZE - ch->ch_t_tlevel;
 	} else {
@@ -1570,6 +1547,7 @@ static void neo_copy_data_from_queue_to_uart(struct channel_t *ch)
 		ch->ch_flags &= ~(CH_TX_FIFO_EMPTY | CH_TX_FIFO_LWM);
 	}
 
+exit_unlock:
 	spin_unlock_irqrestore(&ch->ch_lock, flags);
 }
 
diff --git a/drivers/staging/dgnc/dgnc_neo.h b/drivers/staging/dgnc/dgnc_neo.h
index 1a4abb1..c528df5 100644
--- a/drivers/staging/dgnc/dgnc_neo.h
+++ b/drivers/staging/dgnc/dgnc_neo.h
@@ -11,19 +11,11 @@
  * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the
  * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
  * PURPOSE.  See the GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- *	NOTE: THIS IS A SHARED HEADER. DO NOT CHANGE CODING STYLE!!!
- *
  */
 
 #ifndef __DGNC_NEO_H
 #define __DGNC_NEO_H
 
-#include "dgnc_types.h"
 #include "dgnc_driver.h"
 
 /************************************************************************
diff --git a/drivers/staging/dgnc/dgnc_pci.h b/drivers/staging/dgnc/dgnc_pci.h
index 5b6f76d..617d40d 100644
--- a/drivers/staging/dgnc/dgnc_pci.h
+++ b/drivers/staging/dgnc/dgnc_pci.h
@@ -11,12 +11,6 @@
  * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the
  * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
  * PURPOSE.  See the GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- *	NOTE: THIS IS A SHARED HEADER. DO NOT CHANGE CODING STYLE!!!
  */
 
 #ifndef __DGNC_PCI_H
diff --git a/drivers/staging/dgnc/dgnc_sysfs.c b/drivers/staging/dgnc/dgnc_sysfs.c
index 2fd34ca..65551d1 100644
--- a/drivers/staging/dgnc/dgnc_sysfs.c
+++ b/drivers/staging/dgnc/dgnc_sysfs.c
@@ -11,22 +11,6 @@
  * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the
  * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
  * PURPOSE.  See the GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- *
- *      NOTE TO LINUX KERNEL HACKERS:  DO NOT REFORMAT THIS CODE!
- *
- *      This is shared code between Digi's CVS archive and the
- *      Linux Kernel sources.
- *      Changing the source just for reformatting needlessly breaks
- *      our CVS diff history.
- *
- *      Send any bug fixes/changes to:  Eng.Linux at digi dot com.
- *      Thank you.
- *
  */
 
 
@@ -91,7 +75,7 @@ void dgnc_create_driver_sysfiles(struct pci_driver *dgnc_driver)
 	rc |= driver_create_file(driverfs, &driver_attr_maxboards);
 	rc |= driver_create_file(driverfs, &driver_attr_pollrate);
 	if (rc)
-		printk(KERN_ERR "DGNC: sysfs driver_create_file failed!\n");
+		pr_err("DGNC: sysfs driver_create_file failed!\n");
 }
 
 
@@ -360,7 +344,7 @@ void dgnc_create_ports_sysfiles(struct dgnc_board *bd)
 	rc |= device_create_file(&(bd->pdev->dev), &dev_attr_vpd);
 	rc |= device_create_file(&(bd->pdev->dev), &dev_attr_serial_number);
 	if (rc)
-		printk(KERN_ERR "DGNC: sysfs device_create_file failed!\n");
+		dev_err(&bd->pdev->dev, "dgnc: sysfs device_create_file failed!\n");
 }
 
 
diff --git a/drivers/staging/dgnc/dgnc_sysfs.h b/drivers/staging/dgnc/dgnc_sysfs.h
index 68c0de5..be0f90a 100644
--- a/drivers/staging/dgnc/dgnc_sysfs.h
+++ b/drivers/staging/dgnc/dgnc_sysfs.h
@@ -11,20 +11,13 @@
  * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the
  * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
  * PURPOSE.  See the GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- *	NOTE: THIS IS A SHARED HEADER. DO NOT CHANGE CODING STYLE!!!
  */
 
 #ifndef __DGNC_SYSFS_H
 #define __DGNC_SYSFS_H
 
-#include "dgnc_driver.h"
-
 #include <linux/device.h>
+#include "dgnc_driver.h"
 
 struct dgnc_board;
 struct channel_t;
@@ -44,6 +37,4 @@ extern int dgnc_tty_class_destroy(void);
 extern void dgnc_create_tty_sysfs(struct un_t *un, struct device *c);
 extern void dgnc_remove_tty_sysfs(struct device *c);
 
-
-
 #endif
diff --git a/drivers/staging/dgnc/dgnc_tty.c b/drivers/staging/dgnc/dgnc_tty.c
index f81a375..ce4187f 100644
--- a/drivers/staging/dgnc/dgnc_tty.c
+++ b/drivers/staging/dgnc/dgnc_tty.c
@@ -11,21 +11,6 @@
  * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the
  * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
  * PURPOSE.  See the GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- *
- *	NOTE TO LINUX KERNEL HACKERS:  DO NOT REFORMAT THIS CODE!
- *
- *	This is shared code between Digi's CVS archive and the
- *	Linux Kernel sources.
- *	Changing the source just for reformatting needlessly breaks
- *	our CVS diff history.
- *
- *	Send any bug fixes/changes to:  Eng.Linux at digi dot com.
- *	Thank you.
  */
 
 /************************************************************************
@@ -44,6 +29,7 @@
 #include <linux/ctype.h>
 #include <linux/tty.h>
 #include <linux/tty_flip.h>
+#include <linux/types.h>
 #include <linux/serial_reg.h>
 #include <linux/slab.h>
 #include <linux/delay.h>	/* For udelay */
@@ -51,10 +37,8 @@
 #include <linux/pci.h>
 #include "dgnc_driver.h"
 #include "dgnc_tty.h"
-#include "dgnc_types.h"
 #include "dgnc_neo.h"
 #include "dgnc_cls.h"
-#include "dpacompat.h"
 #include "dgnc_sysfs.h"
 #include "dgnc_utils.h"
 
@@ -236,7 +220,7 @@ int dgnc_tty_register(struct dgnc_board *brd)
 				"Can't register tty device (%d)\n", rc);
 			return rc;
 		}
-		brd->dgnc_Major_Serial_Registered = TRUE;
+		brd->dgnc_Major_Serial_Registered = true;
 	}
 
 	/*
@@ -286,7 +270,7 @@ int dgnc_tty_register(struct dgnc_board *brd)
 				rc);
 			return rc;
 		}
-		brd->dgnc_Major_TransparentPrint_Registered = TRUE;
+		brd->dgnc_Major_TransparentPrint_Registered = true;
 	}
 
 	dgnc_BoardsByMajor[brd->SerialDriver.major] = brd;
@@ -424,7 +408,7 @@ void dgnc_tty_uninit(struct dgnc_board *brd)
 			tty_unregister_device(&brd->SerialDriver, i);
 		}
 		tty_unregister_driver(&brd->SerialDriver);
-		brd->dgnc_Major_Serial_Registered = FALSE;
+		brd->dgnc_Major_Serial_Registered = false;
 	}
 
 	if (brd->dgnc_Major_TransparentPrint_Registered) {
@@ -435,7 +419,7 @@ void dgnc_tty_uninit(struct dgnc_board *brd)
 			tty_unregister_device(&brd->PrintDriver, i);
 		}
 		tty_unregister_driver(&brd->PrintDriver);
-		brd->dgnc_Major_TransparentPrint_Registered = FALSE;
+		brd->dgnc_Major_TransparentPrint_Registered = false;
 	}
 
 	kfree(brd->SerialDriver.ttys);
@@ -507,7 +491,7 @@ void dgnc_input(struct channel_t *ch)
 {
 	struct dgnc_board *bd;
 	struct tty_struct *tp;
-	struct tty_ldisc *ld;
+	struct tty_ldisc *ld = NULL;
 	uint	rmask;
 	ushort	head;
 	ushort	tail;
@@ -539,10 +523,8 @@ void dgnc_input(struct channel_t *ch)
 	tail = ch->ch_r_tail & rmask;
 	data_len = (head - tail) & rmask;
 
-	if (data_len == 0) {
-		spin_unlock_irqrestore(&ch->ch_lock, flags);
-		return;
-	}
+	if (data_len == 0)
+		goto exit_unlock;
 
 	/*
 	 * If the device is not open, or CREAD is off,
@@ -556,17 +538,14 @@ void dgnc_input(struct channel_t *ch)
 		/* Force queue flow control to be released, if needed */
 		dgnc_check_queue_flow_control(ch);
 
-		spin_unlock_irqrestore(&ch->ch_lock, flags);
-		return;
+		goto exit_unlock;
 	}
 
 	/*
 	 * If we are throttled, simply don't read any data.
 	 */
-	if (ch->ch_flags & CH_FORCED_STOPI) {
-		spin_unlock_irqrestore(&ch->ch_lock, flags);
-		return;
-	}
+	if (ch->ch_flags & CH_FORCED_STOPI)
+		goto exit_unlock;
 
 	flip_len = TTY_FLIPBUF_SIZE;
 
@@ -604,12 +583,8 @@ void dgnc_input(struct channel_t *ch)
 		}
 	}
 
-	if (len <= 0) {
-		spin_unlock_irqrestore(&ch->ch_lock, flags);
-		if (ld)
-			tty_ldisc_deref(ld);
-		return;
-	}
+	if (len <= 0)
+		goto exit_unlock;
 
 	/*
 	 * The tty layer in the kernel has changed in 2.6.16+.
@@ -677,6 +652,12 @@ void dgnc_input(struct channel_t *ch)
 
 	if (ld)
 		tty_ldisc_deref(ld);
+	return;
+
+exit_unlock:
+	spin_unlock_irqrestore(&ch->ch_lock, flags);
+	if (ld)
+		tty_ldisc_deref(ld);
 }
 
 
@@ -886,10 +867,6 @@ void dgnc_check_queue_flow_control(struct channel_t *ch)
 				ch->ch_stops_sent++;
 			}
 		}
-		/* No FLOW */
-		else {
-			/* Empty... Can't do anything about the impending overflow... */
-		}
 	}
 
 	/*
@@ -1064,7 +1041,7 @@ static int dgnc_tty_open(struct tty_struct *tty, struct file *file)
 	spin_lock_irqsave(&brd->bd_lock, flags);
 
 	/* If opened device is greater than our number of ports, bail. */
-	if (PORT_NUM(minor) > brd->nasync) {
+	if (PORT_NUM(minor) >= brd->nasync) {
 		spin_unlock_irqrestore(&brd->bd_lock, flags);
 		return -ENXIO;
 	}
@@ -1777,10 +1754,8 @@ static int dgnc_tty_write(struct tty_struct *tty,
 	/*
 	 * Bail if no space left.
 	 */
-	if (count <= 0) {
-		spin_unlock_irqrestore(&ch->ch_lock, flags);
-		return 0;
-	}
+	if (count <= 0)
+		goto exit_retry;
 
 	/*
 	 * Output the printer ON string, if we are in terminal mode, but
@@ -1807,10 +1782,8 @@ static int dgnc_tty_write(struct tty_struct *tty,
 	/*
 	 * If there is nothing left to copy, or I can't handle any more data, leave.
 	 */
-	if (count <= 0) {
-		spin_unlock_irqrestore(&ch->ch_lock, flags);
-		return 0;
-	}
+	if (count <= 0)
+		goto exit_retry;
 
 	if (from_user) {
 
@@ -1896,6 +1869,11 @@ static int dgnc_tty_write(struct tty_struct *tty,
 	}
 
 	return count;
+
+exit_retry:
+
+	spin_unlock_irqrestore(&ch->ch_lock, flags);
+	return 0;
 }
 
 
diff --git a/drivers/staging/dgnc/dgnc_tty.h b/drivers/staging/dgnc/dgnc_tty.h
index 3975f04..21d3369 100644
--- a/drivers/staging/dgnc/dgnc_tty.h
+++ b/drivers/staging/dgnc/dgnc_tty.h
@@ -11,12 +11,6 @@
  * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the
  * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
  * PURPOSE.  See the GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- *	NOTE: THIS IS A SHARED HEADER. DO NOT CHANGE CODING STYLE!!!
  */
 
 #ifndef __DGNC_TTY_H
diff --git a/drivers/staging/dgnc/dgnc_types.h b/drivers/staging/dgnc/dgnc_types.h
deleted file mode 100644
index 3aafced..0000000
--- a/drivers/staging/dgnc/dgnc_types.h
+++ /dev/null
@@ -1,33 +0,0 @@
-/*
- * Copyright 2003 Digi International (www.digi.com)
- *	Scott H Kilau <Scott_Kilau at digi dot com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the
- * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
- * PURPOSE.  See the GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- *	NOTE: THIS IS A SHARED HEADER. DO NOT CHANGE CODING STYLE!!!
- */
-
-#ifndef __DGNC_TYPES_H
-#define __DGNC_TYPES_H
-
-#ifndef TRUE
-# define TRUE 1
-#endif
-
-#ifndef FALSE
-# define FALSE 0
-#endif
-
-#endif
diff --git a/drivers/staging/dgnc/dgnc_utils.c b/drivers/staging/dgnc/dgnc_utils.c
index 80b5133..f76de82 100644
--- a/drivers/staging/dgnc/dgnc_utils.c
+++ b/drivers/staging/dgnc/dgnc_utils.c
@@ -16,55 +16,3 @@ int dgnc_ms_sleep(ulong ms)
 	schedule_timeout((ms * HZ) / 1000);
 	return signal_pending(current);
 }
-
-/*
- *      dgnc_ioctl_name() : Returns a text version of each ioctl value.
- */
-char *dgnc_ioctl_name(int cmd)
-{
-	switch (cmd) {
-
-	case TCGETA:		return "TCGETA";
-	case TCGETS:		return "TCGETS";
-	case TCSETA:		return "TCSETA";
-	case TCSETS:		return "TCSETS";
-	case TCSETAW:		return "TCSETAW";
-	case TCSETSW:		return "TCSETSW";
-	case TCSETAF:		return "TCSETAF";
-	case TCSETSF:		return "TCSETSF";
-	case TCSBRK:		return "TCSBRK";
-	case TCXONC:		return "TCXONC";
-	case TCFLSH:		return "TCFLSH";
-	case TIOCGSID:		return "TIOCGSID";
-
-	case TIOCGETD:		return "TIOCGETD";
-	case TIOCSETD:		return "TIOCSETD";
-	case TIOCGWINSZ:	return "TIOCGWINSZ";
-	case TIOCSWINSZ:	return "TIOCSWINSZ";
-
-	case TIOCMGET:		return "TIOCMGET";
-	case TIOCMSET:		return "TIOCMSET";
-	case TIOCMBIS:		return "TIOCMBIS";
-	case TIOCMBIC:		return "TIOCMBIC";
-
-	/* from digi.h */
-	case DIGI_SETA:		return "DIGI_SETA";
-	case DIGI_SETAW:	return "DIGI_SETAW";
-	case DIGI_SETAF:	return "DIGI_SETAF";
-	case DIGI_SETFLOW:	return "DIGI_SETFLOW";
-	case DIGI_SETAFLOW:	return "DIGI_SETAFLOW";
-	case DIGI_GETFLOW:	return "DIGI_GETFLOW";
-	case DIGI_GETAFLOW:	return "DIGI_GETAFLOW";
-	case DIGI_GETA:		return "DIGI_GETA";
-	case DIGI_GEDELAY:	return "DIGI_GEDELAY";
-	case DIGI_SEDELAY:	return "DIGI_SEDELAY";
-	case DIGI_GETCUSTOMBAUD: return "DIGI_GETCUSTOMBAUD";
-	case DIGI_SETCUSTOMBAUD: return "DIGI_SETCUSTOMBAUD";
-	case TIOCMODG:		return "TIOCMODG";
-	case TIOCMODS:		return "TIOCMODS";
-	case TIOCSDTR:		return "TIOCSDTR";
-	case TIOCCDTR:		return "TIOCCDTR";
-
-	default:		return "unknown";
-	}
-}
diff --git a/drivers/staging/dgnc/dgnc_utils.h b/drivers/staging/dgnc/dgnc_utils.h
index cebf601..1164c3a 100644
--- a/drivers/staging/dgnc/dgnc_utils.h
+++ b/drivers/staging/dgnc/dgnc_utils.h
@@ -2,6 +2,5 @@
 #define __DGNC_UTILS_H
 
 int dgnc_ms_sleep(ulong ms);
-char *dgnc_ioctl_name(int cmd);
 
 #endif
diff --git a/drivers/staging/dgnc/digi.h b/drivers/staging/dgnc/digi.h
index d6e0b9f..d637a78 100644
--- a/drivers/staging/dgnc/digi.h
+++ b/drivers/staging/dgnc/digi.h
@@ -11,36 +11,11 @@
  * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the
  * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
  * PURPOSE.  See the GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- *	NOTE: THIS IS A SHARED HEADER. DO NOT CHANGE CODING STYLE!!!
  */
 
 #ifndef __DIGI_H
 #define __DIGI_H
 
-/************************************************************************
- ***	Definitions for Digi ditty(1) command.
- ************************************************************************/
-
-
-/*
- * Copyright (c) 1988-96 Digi International Inc., All Rights Reserved.
- */
-
-/************************************************************************
- * This module provides application access to special Digi
- * serial line enhancements which are not standard UNIX(tm) features.
- ************************************************************************/
-
-#if !defined(TIOCMODG)
-
-#define	TIOCMODG	(('d'<<8) | 250)	/* get modem ctrl state	*/
-#define	TIOCMODS	(('d'<<8) | 251)	/* set modem ctrl state	*/
-
 #ifndef TIOCM_LE
 #define		TIOCM_LE	0x01		/* line enable		*/
 #define		TIOCM_DTR	0x02		/* data terminal ready	*/
@@ -55,8 +30,6 @@
 #define		TIOCM_CD	TIOCM_CAR	/* carrier detect (alt)	*/
 #endif
 
-#endif
-
 #if !defined(TIOCMSET)
 #define	TIOCMSET	(('d'<<8) | 252)	/* set modem ctrl state	*/
 #define	TIOCMGET	(('d'<<8) | 253)	/* set modem ctrl state	*/
@@ -67,83 +40,24 @@
 #define	TIOCMBIS	(('d'<<8) | 255)	/* set modem ctrl state */
 #endif
 
-
-#if !defined(TIOCSDTR)
-#define	TIOCSDTR	(('e'<<8) | 0)		/* set DTR		*/
-#define	TIOCCDTR	(('e'<<8) | 1)		/* clear DTR		*/
-#endif
-
-/************************************************************************
- * Ioctl command arguments for DIGI parameters.
- ************************************************************************/
 #define DIGI_GETA	(('e'<<8) | 94)		/* Read params		*/
-
 #define DIGI_SETA	(('e'<<8) | 95)		/* Set params		*/
 #define DIGI_SETAW	(('e'<<8) | 96)		/* Drain & set params	*/
 #define DIGI_SETAF	(('e'<<8) | 97)		/* Drain, flush & set params */
-
-#define DIGI_KME	(('e'<<8) | 98)		/* Read/Write Host	*/
-						/* Adapter Memory	*/
-
-#define	DIGI_GETFLOW	(('e'<<8) | 99)		/* Get startc/stopc flow */
-						/* control characters	 */
-#define	DIGI_SETFLOW	(('e'<<8) | 100)	/* Set startc/stopc flow */
-						/* control characters	 */
-#define	DIGI_GETAFLOW	(('e'<<8) | 101)	/* Get Aux. startc/stopc */
-						/* flow control chars	 */
-#define	DIGI_SETAFLOW	(('e'<<8) | 102)	/* Set Aux. startc/stopc */
-						/* flow control chars	 */
-
-#define DIGI_GEDELAY	(('d'<<8) | 246)	/* Get edelay */
-#define DIGI_SEDELAY	(('d'<<8) | 247)	/* Set edelay */
-
-struct	digiflow_t {
-	unsigned char	startc;				/* flow cntl start char	*/
-	unsigned char	stopc;				/* flow cntl stop char	*/
-};
-
-
-#ifdef	FLOW_2200
-#define	F2200_GETA	(('e'<<8) | 104)	/* Get 2x36 flow cntl flags */
-#define	F2200_SETAW	(('e'<<8) | 105)	/* Set 2x36 flow cntl flags */
-#define		F2200_MASK	0x03		/* 2200 flow cntl bit mask  */
-#define		FCNTL_2200	0x01		/* 2x36 terminal flow cntl  */
-#define		PCNTL_2200	0x02		/* 2x36 printer flow cntl   */
-#define	F2200_XON	0xf8
-#define	P2200_XON	0xf9
-#define	F2200_XOFF	0xfa
-#define	P2200_XOFF	0xfb
-
-#define	FXOFF_MASK	0x03			/* 2200 flow status mask    */
-#define	RCVD_FXOFF	0x01			/* 2x36 Terminal XOFF rcvd  */
-#define	RCVD_PXOFF	0x02			/* 2x36 Printer XOFF rcvd   */
-#endif
-
-/************************************************************************
- * Values for digi_flags
- ************************************************************************/
-#define DIGI_IXON	0x0001		/* Handle IXON in the FEP	*/
+#define DIGI_GET_NI_INFO (('d'<<8) | 250) /* Non-intelligent state info */
+#define DIGI_LOOPBACK (('d'<<8) | 252) /*
+					* Enable/disable UART
+					* internal loopback
+					*/
 #define DIGI_FAST	0x0002		/* Fast baud rates		*/
 #define RTSPACE		0x0004		/* RTS input flow control	*/
 #define CTSPACE		0x0008		/* CTS output flow control	*/
-#define DSRPACE		0x0010		/* DSR output flow control	*/
-#define DCDPACE		0x0020		/* DCD output flow control	*/
-#define DTRPACE		0x0040		/* DTR input flow control	*/
 #define DIGI_COOK	0x0080		/* Cooked processing done in FEP */
 #define DIGI_FORCEDCD	0x0100		/* Force carrier		*/
 #define	DIGI_ALTPIN	0x0200		/* Alternate RJ-45 pin config	*/
-#define	DIGI_AIXON	0x0400		/* Aux flow control in fep	*/
 #define	DIGI_PRINTER	0x0800		/* Hold port open for flow cntrl*/
-#define DIGI_PP_INPUT	0x1000		/* Change parallel port to input*/
 #define DIGI_DTR_TOGGLE	0x2000		/* Support DTR Toggle           */
-#define DIGI_422	0x4000		/* for 422/232 selectable panel */
 #define DIGI_RTS_TOGGLE	0x8000		/* Support RTS Toggle		*/
-
-/************************************************************************
- * These options are not supported on the comxi.
- ************************************************************************/
-#define	DIGI_COMXI	(DIGI_FAST|DIGI_COOK|DSRPACE|DCDPACE|DTRPACE)
-
 #define DIGI_PLEN	28		/* String length		*/
 #define	DIGI_TSIZ	10		/* Terminal string len		*/
 
@@ -163,76 +77,6 @@ struct digi_t {
 };
 
 /************************************************************************
- * KME definitions and structures.
- ************************************************************************/
-#define	RW_IDLE		0	/* Operation complete			*/
-#define	RW_READ		1	/* Read Concentrator Memory		*/
-#define	RW_WRITE	2	/* Write Concentrator Memory		*/
-
-struct rw_t {
-	unsigned char	rw_req;		/* Request type			*/
-	unsigned char	rw_board;	/* Host Adapter board number	*/
-	unsigned char	rw_conc;	/* Concentrator number		*/
-	unsigned char	rw_reserved;	/* Reserved for expansion	*/
-	unsigned int	rw_addr;	/* Address in concentrator	*/
-	unsigned short	rw_size;	/* Read/write request length	*/
-	unsigned char	rw_data[128];	/* Data to read/write		*/
-};
-
-/***********************************************************************
- * Shrink Buffer and Board Information definitions and structures.
-
- ************************************************************************/
-			/* Board type return codes */
-#define	PCXI_TYPE 1     /* Board type at the designated port is a PC/Xi */
-#define PCXM_TYPE 2     /* Board type at the designated port is a PC/Xm */
-#define	PCXE_TYPE 3     /* Board type at the designated port is a PC/Xe */
-#define	MCXI_TYPE 4     /* Board type at the designated port is a MC/Xi */
-#define COMXI_TYPE 5     /* Board type at the designated port is a COM/Xi */
-
-			 /* Non-Zero Result codes. */
-#define RESULT_NOBDFND 1 /* A Digi product at that port is not config installed */
-#define RESULT_NODESCT 2 /* A memory descriptor was not obtainable */
-#define RESULT_NOOSSIG 3 /* FEP/OS signature was not detected on the board */
-#define RESULT_TOOSML  4 /* Too small an area to shrink.  */
-#define RESULT_NOCHAN  5 /* Channel structure for the board was not found */
-
-struct shrink_buf_struct {
-	unsigned int	shrink_buf_vaddr;	/* Virtual address of board */
-	unsigned int	shrink_buf_phys;	/* Physical address of board */
-	unsigned int	shrink_buf_bseg;	/* Amount of board memory */
-	unsigned int	shrink_buf_hseg;	/* '186 Beginning of Dual-Port */
-
-	unsigned int	shrink_buf_lseg;	/* '186 Beginning of freed memory */
-	unsigned int	shrink_buf_mseg;	/* Linear address from start of
-						   dual-port were freed memory
-						   begins, host viewpoint. */
-
-	unsigned int	shrink_buf_bdparam;	/* Parameter for xxmemon and
-						   xxmemoff */
-
-	unsigned int	shrink_buf_reserva;	/* Reserved */
-	unsigned int	shrink_buf_reservb;	/* Reserved */
-	unsigned int	shrink_buf_reservc;	/* Reserved */
-	unsigned int	shrink_buf_reservd;	/* Reserved */
-
-	unsigned char	shrink_buf_result;	/* Reason for call failing
-						   Zero is Good return */
-	unsigned char	shrink_buf_init;	/* Non-Zero if it caused an
-						   xxinit call. */
-
-	unsigned char	shrink_buf_anports;	/* Number of async ports  */
-	unsigned char	shrink_buf_snports;	/* Number of sync  ports */
-	unsigned char	shrink_buf_type;	/* Board type 1 = PC/Xi,
-							      2 = PC/Xm,
-							      3 = PC/Xe
-							      4 = MC/Xi
-							      5 = COMX/i */
-	unsigned char	shrink_buf_card;	/* Card number */
-
-};
-
-/************************************************************************
  * Structure to get driver status information
  ************************************************************************/
 struct digi_dinfo {
@@ -263,52 +107,6 @@ struct digi_info {
 
 #define	DIGI_GETBD	(('d'<<8) | 249)	/* get board info          */
 
-struct digi_stat {
-	unsigned int	info_chan;		/* Channel number (0 based)  */
-	unsigned int	info_brd;		/* Board number (0 based)  */
-	unsigned int	info_cflag;		/* cflag for channel       */
-	unsigned int	info_iflag;		/* iflag for channel       */
-	unsigned int	info_oflag;		/* oflag for channel       */
-	unsigned int	info_mstat;		/* mstat for channel       */
-	unsigned int	info_tx_data;		/* tx_data for channel       */
-	unsigned int	info_rx_data;		/* rx_data for channel       */
-	unsigned int	info_hflow;		/* hflow for channel       */
-	unsigned int	info_reserved[8];	/* for future expansion    */
-};
-
-#define	DIGI_GETSTAT	(('d'<<8) | 244)	/* get board info          */
-/************************************************************************
- *
- * Structure used with ioctl commands for per-channel information
- *
- ************************************************************************/
-struct digi_ch {
-	unsigned int	info_bdnum;		/* Board number (0 based)  */
-	unsigned int	info_channel;		/* Channel index number    */
-	unsigned int	info_ch_cflag;		/* Channel cflag	   */
-	unsigned int	info_ch_iflag;		/* Channel iflag	   */
-	unsigned int	info_ch_oflag;		/* Channel oflag	   */
-	unsigned int	info_chsize;		/* Channel structure size  */
-	unsigned int	info_sleep_stat;	/* sleep status		   */
-	dev_t		info_dev;		/* device number	   */
-	unsigned char	info_initstate;		/* Channel init state	   */
-	unsigned char	info_running;		/* Channel running state   */
-	int		reserved[8];		/* reserved for future use */
-};
-
-/*
-* This structure is used with the DIGI_FEPCMD ioctl to
-* tell the driver which port to send the command for.
-*/
-struct digi_cmd {
-	int	cmd;
-	int	word;
-	int	ncmds;
-	int	chan; /* channel index (zero based) */
-	int	bdid; /* board index (zero based) */
-};
-
-
 struct digi_getbuffer /* Struct for holding buffer use counts */
 {
 	unsigned long tIn;
@@ -328,63 +126,9 @@ struct digi_getcounter {
 	unsigned long tbytes;		/* number of bytes transmitted fully */
 };
 
-/*
-*  info_sleep_stat defines
-*/
-#define INFO_RUNWAIT	0x0001
-#define INFO_WOPEN	0x0002
-#define INFO_TTIOW	0x0004
-#define INFO_CH_RWAIT	0x0008
-#define INFO_CH_WEMPTY	0x0010
-#define INFO_CH_WLOW	0x0020
-#define INFO_XXBUF_BUSY 0x0040
-
-#define	DIGI_GETCH	(('d'<<8) | 245)	/* get board info          */
-
-/* Board type definitions */
-
-#define	SUBTYPE		0007
-#define	T_PCXI		0000
-#define T_PCXM		0001
-#define T_PCXE		0002
-#define T_PCXR		0003
-#define T_SP		0004
-#define T_SP_PLUS	0005
-#	define T_HERC	0000
-#	define T_HOU	0001
-#	define T_LON	0002
-#	define T_CHA	0003
-#define FAMILY		0070
-#define T_COMXI		0000
-#define T_PCXX		0010
-#define T_CX		0020
-#define T_EPC		0030
-#define	T_PCLITE	0040
-#define	T_SPXX		0050
-#define	T_AVXX		0060
-#define T_DXB		0070
-#define T_A2K_4_8	0070
-#define BUSTYPE		0700
-#define T_ISABUS	0000
-#define T_MCBUS		0100
-#define	T_EISABUS	0200
-#define	T_PCIBUS	0400
-
 /* Board State Definitions */
-
 #define	BD_RUNNING	0x0
-#define	BD_REASON	0x7f
-#define	BD_NOTFOUND	0x1
-#define	BD_NOIOPORT	0x2
-#define	BD_NOMEM	0x3
-#define	BD_NOBIOS	0x4
 #define	BD_NOFEP	0x5
-#define	BD_FAILED	0x6
-#define BD_ALLOCATED	0x7
-#define BD_TRIBOOT	0x8
-#define	BD_BADKME	0x80
-
-#define DIGI_SPOLL            (('d'<<8) | 254)  /* change poller rate   */
 
 #define DIGI_SETCUSTOMBAUD	_IOW('e', 106, int)	/* Set integer baud rate */
 #define DIGI_GETCUSTOMBAUD	_IOR('e', 107, int)	/* Get integer baud rate */
@@ -396,20 +140,40 @@ struct digi_getcounter {
 
 #define EV_OPU		0x0001		/* !<Output paused by client */
 #define EV_OPS		0x0002		/* !<Output paused by reqular sw flowctrl */
-#define EV_OPX		0x0004		/* !<Output paused by extra sw flowctrl */
-#define EV_OPH		0x0008		/* !<Output paused by hw flowctrl */
-#define EV_OPT		0x0800		/* !<Output paused for RTS Toggle predelay */
-
 #define EV_IPU		0x0010		/* !<Input paused unconditionally by user */
 #define EV_IPS		0x0020		/* !<Input paused by high/low water marks */
-#define EV_IPA		0x0400		/* !<Input paused by pattern alarm module */
-
 #define EV_TXB		0x0040		/* !<Transmit break pending */
-#define EV_TXI		0x0080		/* !<Transmit immediate pending */
-#define EV_TXF		0x0100		/* !<Transmit flowctrl char pending */
-#define EV_RXB		0x0200		/* !<Break received */
 
-#define EV_OPALL	0x080f		/* !<Output pause flags */
-#define EV_IPALL	0x0430		/* !<Input pause flags */
+/*
+ * This structure holds data needed for the intelligent <--> nonintelligent
+ * DPA translation
+ */
+struct ni_info {
+	int board;
+	int channel;
+	int dtr;
+	int rts;
+	int cts;
+	int dsr;
+	int ri;
+	int dcd;
+	int curtx;
+	int currx;
+	unsigned short iflag;
+	unsigned short oflag;
+	unsigned short cflag;
+	unsigned short lflag;
+	unsigned int mstat;
+	unsigned char hflow;
+	unsigned char xmit_stopped;
+	unsigned char recv_stopped;
+	unsigned int baud;
+};
+
+#define T_CLASSIC 0002
+#define T_PCIBUS 0400
+#define T_NEO_EXPRESS 0001
+#define T_NEO 0000
 
+#define TTY_FLIPBUF_SIZE 512
 #endif /* DIGI_H */
diff --git a/drivers/staging/dgnc/dpacompat.h b/drivers/staging/dgnc/dpacompat.h
deleted file mode 100644
index 33cb394..0000000
--- a/drivers/staging/dgnc/dpacompat.h
+++ /dev/null
@@ -1,115 +0,0 @@
-/*
- * Copyright 2003 Digi International (www.digi.com)
- *      Scott H Kilau <Scott_Kilau at digi dot com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the
- * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
- * PURPOSE.  See the GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- *      NOTE: THIS IS A SHARED HEADER. DO NOT CHANGE CODING STYLE!!!
- */
-
-
-/*
- * This structure holds data needed for the intelligent <--> nonintelligent
- * DPA translation
- */
-struct ni_info {
-	int board;
-	int channel;
-	int dtr;
-	int rts;
-	int cts;
-	int dsr;
-	int ri;
-	int dcd;
-	int curtx;
-	int currx;
-	unsigned short iflag;
-	unsigned short oflag;
-	unsigned short cflag;
-	unsigned short lflag;
-
-	unsigned int mstat;
-	unsigned char hflow;
-
-	unsigned char xmit_stopped;
-	unsigned char recv_stopped;
-
-	unsigned int baud;
-};
-
-#define RW_READ		1
-#define RW_WRITE        2
-#define DIGI_KME        (('e'<<8) | 98)         /* Read/Write Host */
-
-#define SUBTYPE         0007
-#define T_PCXI          0000
-#define T_PCXEM         0001
-#define T_PCXE          0002
-#define T_PCXR          0003
-#define T_SP            0004
-#define T_SP_PLUS       0005
-
-#define T_HERC   0000
-#define T_HOU    0001
-#define T_LON    0002
-#define T_CHA    0003
-
-#define T_NEO	 0000
-#define T_NEO_EXPRESS  0001
-#define T_CLASSIC 0002
-
-#define FAMILY          0070
-#define T_COMXI         0000
-#define	T_NI		0000
-#define T_PCXX          0010
-#define T_CX            0020
-#define T_EPC           0030
-#define T_PCLITE        0040
-#define T_SPXX          0050
-#define T_AVXX          0060
-#define T_DXB           0070
-#define T_A2K_4_8       0070
-
-#define BUSTYPE         0700
-#define T_ISABUS        0000
-#define T_MCBUS         0100
-#define T_EISABUS       0200
-#define T_PCIBUS        0400
-
-/* Board State Definitions */
-
-#define BD_RUNNING      0x0
-#define BD_REASON       0x7f
-#define BD_NOTFOUND     0x1
-#define BD_NOIOPORT     0x2
-#define BD_NOMEM        0x3
-#define BD_NOBIOS       0x4
-#define BD_NOFEP        0x5
-#define BD_FAILED       0x6
-#define BD_ALLOCATED    0x7
-#define BD_TRIBOOT      0x8
-#define BD_BADKME       0x80
-
-#define DIGI_AIXON      0x0400          /* Aux flow control in fep */
-
-/* Ioctls needed for dpa operation */
-
-#define DIGI_GETDD      (('d'<<8) | 248)       /* get driver info      */
-#define DIGI_GETBD      (('d'<<8) | 249)       /* get board info       */
-#define DIGI_GET_NI_INFO (('d'<<8) | 250)	/* nonintelligent state snfo */
-
-/* Other special ioctls */
-#define DIGI_TIMERIRQ (('d'<<8) | 251)		/* Enable/disable RS_TIMER use */
-#define DIGI_LOOPBACK (('d'<<8) | 252)		/* Enable/disable UART internal loopback */
diff --git a/drivers/staging/emxx_udc/emxx_udc.c b/drivers/staging/emxx_udc/emxx_udc.c
index 4be646c..fbf82bc 100644
--- a/drivers/staging/emxx_udc/emxx_udc.c
+++ b/drivers/staging/emxx_udc/emxx_udc.c
@@ -115,7 +115,7 @@ static void _nbu2ss_dump_register(struct nbu2ss_udc *udc)
 	pr_info("=== %s()\n", __func__);
 
 	if (udc == NULL) {
-		ERR("%s udc == NULL\n", __func__);
+		pr_err("%s udc == NULL\n", __func__);
 		return;
 	}
 
@@ -201,7 +201,7 @@ static u32 _nbu2ss_get_begin_ram_address(struct nbu2ss_udc *udc)
 	u32		num, buf_type;
 	u32		data, last_ram_adr, use_ram_size;
 
-	PT_EP_REGS	p_ep_regs;
+	struct ep_regs *p_ep_regs;
 
 	last_ram_adr = (D_RAM_SIZE_CTRL / sizeof(u32)) * 2;
 	use_ram_size = 0;
@@ -394,7 +394,7 @@ static void _nbu2ss_ep_dma_exit(struct nbu2ss_udc *udc, struct nbu2ss_ep *ep)
 {
 	u32		num;
 	u32		data;
-	PT_FC_REGS	preg = udc->p_regs;
+	struct fc_regs	*preg = udc->p_regs;
 
 	if (udc->vbus_active == 0)
 		return;		/* VBUS OFF */
@@ -425,7 +425,7 @@ static void _nbu2ss_ep_dma_exit(struct nbu2ss_udc *udc, struct nbu2ss_ep *ep)
 /* Abort DMA */
 static void _nbu2ss_ep_dma_abort(struct nbu2ss_udc *udc, struct nbu2ss_ep *ep)
 {
-	PT_FC_REGS	preg = udc->p_regs;
+	struct fc_regs	*preg = udc->p_regs;
 
 	_nbu2ss_bitclr(&preg->EP_DCR[ep->epnum-1].EP_DCR1, DCR1_EPn_REQEN);
 	mdelay(DMA_DISABLE_TIME);	/* DCR1_EPn_REQEN Clear */
@@ -443,7 +443,7 @@ static void _nbu2ss_ep_in_end(
 {
 	u32		data;
 	u32		num;
-	PT_FC_REGS	preg = udc->p_regs;
+	struct fc_regs	*preg = udc->p_regs;
 
 	if (length >= sizeof(u32))
 		return;
@@ -567,7 +567,7 @@ static int EP0_out_PIO(struct nbu2ss_udc *udc, u8 *pBuf, u32 length)
 	u32		i;
 	int		nret   = 0;
 	u32		iWordLength = 0;
-	USB_REG_ACCESS *pBuf32 = (USB_REG_ACCESS *)pBuf;
+	union usb_reg_access *pBuf32 = (union usb_reg_access *)pBuf;
 
 	/*------------------------------------------------------------*/
 	/* Read Length */
@@ -592,8 +592,8 @@ static int EP0_out_OverBytes(struct nbu2ss_udc *udc, u8 *pBuf, u32 length)
 {
 	u32		i;
 	u32		iReadSize = 0;
-	USB_REG_ACCESS  Temp32;
-	USB_REG_ACCESS *pBuf32 = (USB_REG_ACCESS *)pBuf;
+	union usb_reg_access  Temp32;
+	union usb_reg_access  *pBuf32 = (union usb_reg_access *)pBuf;
 
 	if ((0 < length) && (length < sizeof(u32))) {
 		Temp32.dw = _nbu2ss_readl(&udc->p_regs->EP0_READ);
@@ -613,7 +613,7 @@ static int EP0_in_PIO(struct nbu2ss_udc *udc, u8 *pBuf, u32 length)
 	u32		iMaxLength   = EP0_PACKETSIZE;
 	u32		iWordLength  = 0;
 	u32		iWriteLength = 0;
-	USB_REG_ACCESS *pBuf32 = (USB_REG_ACCESS *)pBuf;
+	union usb_reg_access  *pBuf32 = (union usb_reg_access *)pBuf;
 
 	/*------------------------------------------------------------*/
 	/* Transfer Length */
@@ -638,8 +638,8 @@ static int EP0_in_PIO(struct nbu2ss_udc *udc, u8 *pBuf, u32 length)
 static int EP0_in_OverBytes(struct nbu2ss_udc *udc, u8 *pBuf, u32 iRemainSize)
 {
 	u32		i;
-	USB_REG_ACCESS Temp32;
-	USB_REG_ACCESS *pBuf32 = (USB_REG_ACCESS *)pBuf;
+	union usb_reg_access  Temp32;
+	union usb_reg_access  *pBuf32 = (union usb_reg_access *)pBuf;
 
 	if ((0 < iRemainSize) && (iRemainSize < sizeof(u32))) {
 		for (i = 0 ; i < iRemainSize ; i++)
@@ -808,7 +808,7 @@ static int _nbu2ss_ep0_out_transfer(
 		return 0;		/* Short Packet Transfer End */
 
 	if (req->req.actual > req->req.length) {
-		ERR(" *** Overrun Error\n");
+		dev_err(udc->dev, " *** Overrun Error\n");
 		return -EOVERFLOW;
 	}
 
@@ -840,7 +840,7 @@ static int _nbu2ss_out_dma(
 	u32		burst = 1;
 	u32		data;
 	int		result = -EINVAL;
-	PT_FC_REGS	preg = udc->p_regs;
+	struct fc_regs	*preg = udc->p_regs;
 
 	if (req->dma_flag)
 		return 1;		/* DMA is forwarded */
@@ -900,10 +900,10 @@ static int _nbu2ss_epn_out_pio(
 	u32		i;
 	u32		data;
 	u32		iWordLength;
-	USB_REG_ACCESS	Temp32;
-	USB_REG_ACCESS	*pBuf32;
+	union usb_reg_access	Temp32;
+	union usb_reg_access	*pBuf32;
 	int		result = 0;
-	PT_FC_REGS	preg = udc->p_regs;
+	struct fc_regs	*preg = udc->p_regs;
 
 	if (req->dma_flag)
 		return 1;		/* DMA is forwarded */
@@ -912,7 +912,7 @@ static int _nbu2ss_epn_out_pio(
 		return 0;
 
 	pBuffer = (u8 *)req->req.buf;
-	pBuf32 = (USB_REG_ACCESS *)(pBuffer + req->req.actual);
+	pBuf32 = (union usb_reg_access *)(pBuffer + req->req.actual);
 
 	iWordLength = length / sizeof(u32);
 	if (iWordLength > 0) {
@@ -988,7 +988,7 @@ static int _nbu2ss_epn_out_transfer(
 	u32		num;
 	u32		iRecvLength;
 	int		result = 1;
-	PT_FC_REGS	preg = udc->p_regs;
+	struct fc_regs	*preg = udc->p_regs;
 
 	if (ep->epnum == 0)
 		return -EINVAL;
@@ -1026,8 +1026,8 @@ static int _nbu2ss_epn_out_transfer(
 	}
 
 	if (req->req.actual > req->req.length) {
-		ERR(" *** Overrun Error\n");
-		ERR(" *** actual = %d, length = %d\n",
+		dev_err(udc->dev, " Overrun Error\n");
+		dev_err(udc->dev, " actual = %d, length = %d\n",
 			req->req.actual, req->req.length);
 		result = -EOVERFLOW;
 	}
@@ -1051,7 +1051,7 @@ static int _nbu2ss_in_dma(
 	u32		iWriteLength;
 	u32		data;
 	int		result = -EINVAL;
-	PT_FC_REGS	preg = udc->p_regs;
+	struct fc_regs	*preg = udc->p_regs;
 
 	if (req->dma_flag)
 		return 1;		/* DMA is forwarded */
@@ -1123,17 +1123,17 @@ static int _nbu2ss_epn_in_pio(
 	u32		i;
 	u32		data;
 	u32		iWordLength;
-	USB_REG_ACCESS	Temp32;
-	USB_REG_ACCESS	*pBuf32 = NULL;
+	union usb_reg_access	Temp32;
+	union usb_reg_access	*pBuf32 = NULL;
 	int		result = 0;
-	PT_FC_REGS	preg = udc->p_regs;
+	struct fc_regs	*preg = udc->p_regs;
 
 	if (req->dma_flag)
 		return 1;		/* DMA is forwarded */
 
 	if (length > 0) {
 		pBuffer = (u8 *)req->req.buf;
-		pBuf32 = (USB_REG_ACCESS *)(pBuffer + req->req.actual);
+		pBuf32 = (union usb_reg_access *)(pBuffer + req->req.actual);
 
 		iWordLength = length / sizeof(u32);
 		if (iWordLength > 0) {
@@ -1347,7 +1347,7 @@ static void _nbu2ss_set_endpoint_stall(
 	u8		num, epnum;
 	u32		data;
 	struct nbu2ss_ep *ep;
-	PT_FC_REGS	preg = udc->p_regs;
+	struct fc_regs	*preg = udc->p_regs;
 
 	if ((ep_adrs == 0) || (ep_adrs == 0x80)) {
 		if (bstall) {
@@ -1426,7 +1426,7 @@ static void _nbu2ss_set_test_mode(struct nbu2ss_udc *udc, u32 mode)
 	if (mode > MAX_TEST_MODE_NUM)
 		return;
 
-	pr_info("SET FEATURE : test mode = %d\n", mode);
+	dev_info(udc->dev, "SET FEATURE : test mode = %d\n", mode);
 
 	data = _nbu2ss_readl(&udc->p_regs->USB_CONTROL);
 	data &= ~TEST_FORCE_ENABLE;
@@ -1454,7 +1454,7 @@ static int _nbu2ss_set_feature_device(
 		break;
 
 	case USB_DEVICE_TEST_MODE:
-		wIndex = wIndex >> 8;
+		wIndex >>= 8;
 		if (wIndex <= MAX_TEST_MODE_NUM)
 			result = 0;
 		break;
@@ -1471,7 +1471,7 @@ static int _nbu2ss_get_ep_stall(struct nbu2ss_udc *udc, u8 ep_adrs)
 {
 	u8		epnum;
 	u32		data = 0, bit_data;
-	PT_FC_REGS	preg = udc->p_regs;
+	struct fc_regs	*preg = udc->p_regs;
 
 	epnum = ep_adrs & ~USB_ENDPOINT_DIR_MASK;
 	if (epnum == 0) {
@@ -1566,7 +1566,7 @@ static void _nbu2ss_epn_set_stall(
 	u32	regdata;
 	int	limit_cnt = 0;
 
-	PT_FC_REGS	preg = udc->p_regs;
+	struct fc_regs	*preg = udc->p_regs;
 
 	if (ep->direct == USB_DIR_IN) {
 		for (limit_cnt = 0
@@ -1638,7 +1638,7 @@ static int std_req_get_status(struct nbu2ss_udc *udc)
 		_nbu2ss_ep0_in_transfer(udc, &udc->ep[0], &udc->ep0_req);
 
 	} else {
-		ERR("*** Error GET_STATUS\n");
+		dev_err(udc->dev, " Error GET_STATUS\n");
 	}
 
 	return result;
@@ -1671,7 +1671,7 @@ static int std_req_set_address(struct nbu2ss_udc *udc)
 	if (wValue != (wValue & 0x007F))
 		return -EINVAL;
 
-	wValue = wValue << USB_ADRS_SHIFT;
+	wValue <<= USB_ADRS_SHIFT;
 
 	_nbu2ss_writel(&udc->p_regs->USB_ADDRESS, wValue);
 	_nbu2ss_create_ep0_packet(udc, udc->ep0_buf, 0);
@@ -1885,8 +1885,8 @@ static inline void _nbu2ss_ep0_int(struct nbu2ss_udc *udc)
 			| STG_END_INT | EP0_OUT_NULL_INT);
 
 	if (status == 0) {
-		pr_info("--- %s Not Decode Interrupt\n", __func__);
-		pr_info("--- EP0_STATUS = 0x%08x\n", intr);
+		dev_info(udc->dev, "%s Not Decode Interrupt\n", __func__);
+		dev_info(udc->dev, "EP0_STATUS = 0x%08x\n", intr);
 		return;
 	}
 
@@ -1994,7 +1994,7 @@ static inline void _nbu2ss_epn_in_int(
 	int	result = 0;
 	u32	status;
 
-	PT_FC_REGS	preg = udc->p_regs;
+	struct fc_regs	*preg = udc->p_regs;
 
 	if (req->dma_flag)
 		return;		/* DMA is forwarded */
@@ -2090,7 +2090,7 @@ static inline void _nbu2ss_epn_out_dma_int(
 	u32		num;
 	u32		dmacnt, ep_dmacnt;
 	u32		mpkt;
-	PT_FC_REGS	preg = udc->p_regs;
+	struct fc_regs	*preg = udc->p_regs;
 
 	num = ep->epnum - 1;
 
@@ -2229,8 +2229,7 @@ static int _nbu2ss_nuke(struct nbu2ss_udc *udc,
 		return 0;
 
 	/* called with irqs blocked */
-	while (!list_empty(&ep->queue)) {
-		req = list_entry(ep->queue.next, struct nbu2ss_req, queue);
+	list_for_each_entry(req, &ep->queue, queue) {
 		_nbu2ss_ep_done(ep, req, status);
 	}
 
@@ -2257,11 +2256,6 @@ static int _nbu2ss_pullup(struct nbu2ss_udc *udc, int is_on)
 {
 	u32	reg_dt;
 
-	if (!udc) {
-		ERR("%s, bad param\n", __func__);
-		return -EINVAL;
-	}
-
 	if (udc->vbus_active == 0)
 		return -ESHUTDOWN;
 
@@ -2293,7 +2287,7 @@ static int _nbu2ss_pullup(struct nbu2ss_udc *udc, int is_on)
 /*-------------------------------------------------------------------------*/
 static void _nbu2ss_fifo_flush(struct nbu2ss_udc *udc, struct nbu2ss_ep *ep)
 {
-	PT_FC_REGS	p = udc->p_regs;
+	struct fc_regs	*p = udc->p_regs;
 
 	if (udc->vbus_active == 0)
 		return;
@@ -2350,7 +2344,7 @@ static int _nbu2ss_enable_controller(struct nbu2ss_udc *udc)
 		waitcnt++;
 		udelay(1);	/* 1us wait */
 		if (waitcnt == EPC_PLL_LOCK_COUNT) {
-			ERR("*** Reset Cancel failed\n");
+			dev_err(udc->dev, "*** Reset Cancel failed\n");
 			return -EINVAL;
 		}
 	};
@@ -2412,7 +2406,7 @@ static inline void _nbu2ss_check_vbus(struct nbu2ss_udc *udc)
 		udc->linux_suspended = 0;
 
 		_nbu2ss_reset_controller(udc);
-		pr_info(" ----- VBUS OFF\n");
+		dev_info(udc->dev, " ----- VBUS OFF\n");
 
 		if (udc->vbus_active == 1) {
 			/* VBUS OFF */
@@ -2438,7 +2432,7 @@ static inline void _nbu2ss_check_vbus(struct nbu2ss_udc *udc)
 		if (reg_dt == 0)
 			return;
 
-		pr_info(" ----- VBUS ON\n");
+		dev_info(udc->dev, " ----- VBUS ON\n");
 
 		if (udc->linux_suspended)
 			return;
@@ -2536,7 +2530,7 @@ static irqreturn_t _nbu2ss_udc_irq(int irq, void *_udc)
 	u32	epnum, int_bit;
 
 	struct nbu2ss_udc	*udc = (struct nbu2ss_udc *)_udc;
-	PT_FC_REGS		preg = udc->p_regs;
+	struct fc_regs	*preg = udc->p_regs;
 
 	if (gpio_get_value(VBUS_VALUE) == 0) {
 		_nbu2ss_writel(&preg->USB_INT_STA, ~USB_INT_STA_RW);
@@ -2612,13 +2606,13 @@ static int nbu2ss_ep_enable(
 	struct nbu2ss_udc	*udc;
 
 	if ((_ep == NULL) || (desc == NULL)) {
-		ERR(" *** %s, bad param\n", __func__);
+		pr_err(" *** %s, bad param\n", __func__);
 		return -EINVAL;
 	}
 
 	ep = container_of(_ep, struct nbu2ss_ep, ep);
 	if ((ep == NULL) || (ep->udc == NULL)) {
-		ERR(" *** %s, ep == NULL !!\n", __func__);
+		pr_err(" *** %s, ep == NULL !!\n", __func__);
 		return -EINVAL;
 	}
 
@@ -2626,7 +2620,7 @@ static int nbu2ss_ep_enable(
 	if ((ep_type == USB_ENDPOINT_XFER_CONTROL)
 		|| (ep_type == USB_ENDPOINT_XFER_ISOC)) {
 
-		ERR(" *** %s, bat bmAttributes\n", __func__);
+		pr_err(" *** %s, bat bmAttributes\n", __func__);
 		return -EINVAL;
 	}
 
@@ -2637,7 +2631,7 @@ static int nbu2ss_ep_enable(
 	if ((udc->driver == NULL)
 		|| (udc->gadget.speed == USB_SPEED_UNKNOWN)) {
 
-		ERR(" *** %s, udc !!\n", __func__);
+		dev_err(ep->udc->dev, " *** %s, udc !!\n", __func__);
 		return -ESHUTDOWN;
 	}
 
@@ -2672,13 +2666,13 @@ static int nbu2ss_ep_disable(struct usb_ep *_ep)
 	unsigned long		flags;
 
 	if (_ep == NULL) {
-		ERR(" *** %s, bad param\n", __func__);
+		pr_err(" *** %s, bad param\n", __func__);
 		return -EINVAL;
 	}
 
 	ep = container_of(_ep, struct nbu2ss_ep, ep);
 	if ((ep == NULL) || (ep->udc == NULL)) {
-		ERR(" *** %s, ep == NULL !!\n", __func__);
+		pr_err("udc: *** %s, ep == NULL !!\n", __func__);
 		return -EINVAL;
 	}
 
@@ -2742,10 +2736,10 @@ static int nbu2ss_ep_queue(
 	/* catch various bogus parameters */
 	if ((_ep == NULL) || (_req == NULL)) {
 		if (_ep == NULL)
-			ERR("*** %s --- _ep == NULL\n", __func__);
+			pr_err("udc: %s --- _ep == NULL\n", __func__);
 
 		if (_req == NULL)
-			ERR("*** %s --- _req == NULL\n", __func__);
+			pr_err("udc: %s --- _req == NULL\n", __func__);
 
 		return -EINVAL;
 	}
@@ -2756,13 +2750,13 @@ static int nbu2ss_ep_queue(
 	     || !list_empty(&req->queue))) {
 
 		if (!_req->complete)
-			ERR("*** %s --- !_req->complete\n", __func__);
+			pr_err("udc: %s --- !_req->complete\n", __func__);
 
 		if (!_req->buf)
-			ERR("*** %s --- !_req->buf\n", __func__);
+			pr_err("udc:%s --- !_req->buf\n", __func__);
 
 		if (!list_empty(&req->queue))
-			ERR("*** %s --- !list_empty(&req->queue)\n", __func__);
+			pr_err("%s --- !list_empty(&req->queue)\n", __func__);
 
 		return -EINVAL;
 	}
@@ -2773,12 +2767,13 @@ static int nbu2ss_ep_queue(
 /*	INFO("=== %s(ep%d), zero=%d\n", __func__, ep->epnum, _req->zero); */
 
 	if (udc->vbus_active == 0) {
-		pr_info("Can't ep_queue (VBUS OFF)\n");
+		dev_info(udc->dev, "Can't ep_queue (VBUS OFF)\n");
 		return -ESHUTDOWN;
 	}
 
 	if (unlikely(!udc->driver)) {
-		ERR("%s, bogus device state %p\n", __func__, udc->driver);
+		dev_err(udc->dev, "%s, bogus device state %p\n", __func__,
+				udc->driver);
 		return -ESHUTDOWN;
 	}
 
@@ -2794,7 +2789,7 @@ static int nbu2ss_ep_queue(
 		if (ep->virt_buf == NULL)
 			ep->virt_buf = (u8 *)dma_alloc_coherent(
 				NULL, PAGE_SIZE,
-				&ep->phys_buf, GFP_KERNEL | GFP_DMA);
+				&ep->phys_buf, GFP_ATOMIC | GFP_DMA);
 		if (ep->epnum > 0)  {
 			if (ep->direct == USB_DIR_IN)
 				memcpy(ep->virt_buf, req->req.buf,
@@ -2817,7 +2812,8 @@ static int nbu2ss_ep_queue(
 
 		result = _nbu2ss_start_transfer(udc, ep, req, FALSE);
 		if (result < 0) {
-			ERR(" *** %s, result = %d\n", __func__, result);
+			dev_err(udc->dev, " *** %s, result = %d\n", __func__,
+					result);
 			list_del(&req->queue);
 		} else if ((ep->epnum > 0) && (ep->direct == USB_DIR_OUT)) {
 #ifdef USE_DMA
@@ -2849,13 +2845,13 @@ static int nbu2ss_ep_dequeue(
 
 	/* catch various bogus parameters */
 	if ((_ep == NULL) || (_req == NULL)) {
-		/* ERR("%s, bad param(1)\n", __func__); */
+		/* pr_err("%s, bad param(1)\n", __func__); */
 		return -EINVAL;
 	}
 
 	ep = container_of(_ep, struct nbu2ss_ep, ep);
 	if (!ep) {
-		ERR("%s, ep == NULL !!\n", __func__);
+		pr_err("%s, ep == NULL !!\n", __func__);
 		return -EINVAL;
 	}
 
@@ -2895,19 +2891,19 @@ static int nbu2ss_ep_set_halt(struct usb_ep *_ep, int value)
 /*	INFO("=== %s()\n", __func__); */
 
 	if (!_ep) {
-		ERR("%s, bad param\n", __func__);
+		pr_err("%s, bad param\n", __func__);
 		return -EINVAL;
 	}
 
 	ep = container_of(_ep, struct nbu2ss_ep, ep);
 	if (!ep) {
-		ERR("%s, bad ep\n", __func__);
+		pr_err("%s, bad ep\n", __func__);
 		return -EINVAL;
 	}
 
 	udc = ep->udc;
 	if (!udc) {
-		ERR(" *** %s, bad udc\n", __func__);
+		dev_err(ep->udc->dev, " *** %s, bad udc\n", __func__);
 		return -EINVAL;
 	}
 
@@ -2944,24 +2940,24 @@ static int nbu2ss_ep_fifo_status(struct usb_ep *_ep)
 	struct nbu2ss_ep	*ep;
 	struct nbu2ss_udc	*udc;
 	unsigned long		flags;
-	PT_FC_REGS		preg;
+	struct fc_regs		*preg;
 
 /*	INFO("=== %s()\n", __func__); */
 
 	if (!_ep) {
-		ERR("%s, bad param\n", __func__);
+		pr_err("%s, bad param\n", __func__);
 		return -EINVAL;
 	}
 
 	ep = container_of(_ep, struct nbu2ss_ep, ep);
 	if (!ep) {
-		ERR("%s, bad ep\n", __func__);
+		pr_err("%s, bad ep\n", __func__);
 		return -EINVAL;
 	}
 
 	udc = ep->udc;
 	if (!udc) {
-		ERR("%s, bad udc\n", __func__);
+		dev_err(ep->udc->dev, "%s, bad udc\n", __func__);
 		return -EINVAL;
 	}
 
@@ -2997,19 +2993,19 @@ static void  nbu2ss_ep_fifo_flush(struct usb_ep *_ep)
 /*	INFO("=== %s()\n", __func__); */
 
 	if (!_ep) {
-		ERR("%s, bad param\n", __func__);
+		pr_err("udc: %s, bad param\n", __func__);
 		return;
 	}
 
 	ep = container_of(_ep, struct nbu2ss_ep, ep);
 	if (!_ep) {
-		ERR("%s, bad ep\n", __func__);
+		pr_err("udc: %s, bad ep\n", __func__);
 		return;
 	}
 
 	udc = ep->udc;
 	if (!udc) {
-		ERR("%s, bad udc\n", __func__);
+		dev_err(ep->udc->dev, "%s, bad udc\n", __func__);
 		return;
 	}
 
@@ -3053,13 +3049,13 @@ static int nbu2ss_gad_get_frame(struct usb_gadget *pgadget)
 /*	INFO("=== %s()\n", __func__); */
 
 	if (pgadget == NULL) {
-		ERR("%s, bad param\n", __func__);
+		pr_err("udc: %s, bad param\n", __func__);
 		return -EINVAL;
 	}
 
 	udc = container_of(pgadget, struct nbu2ss_udc, gadget);
 	if (udc == NULL) {
-		ERR("%s, udc == NULL\n", __func__);
+		dev_err(&pgadget->dev, "%s, udc == NULL\n", __func__);
 		return -EINVAL;
 	}
 
@@ -3083,19 +3079,19 @@ static int nbu2ss_gad_wakeup(struct usb_gadget *pgadget)
 /*	INFO("=== %s()\n", __func__); */
 
 	if (pgadget == NULL) {
-		ERR("%s, bad param\n", __func__);
+		pr_err("%s, bad param\n", __func__);
 		return -EINVAL;
 	}
 
 	udc = container_of(pgadget, struct nbu2ss_udc, gadget);
 	if (udc == NULL) {
-		ERR("%s, udc == NULL\n", __func__);
+		dev_err(&pgadget->dev, "%s, udc == NULL\n", __func__);
 		return -EINVAL;
 	}
 
 	data = gpio_get_value(VBUS_VALUE);
 	if (data == 0) {
-		pr_warn("VBUS LEVEL = %d\n", data);
+		dev_warn(&pgadget->dev, "VBUS LEVEL = %d\n", data);
 		return -EINVAL;
 	}
 
@@ -3123,7 +3119,7 @@ static int nbu2ss_gad_set_selfpowered(struct usb_gadget *pgadget,
 /*	INFO("=== %s()\n", __func__); */
 
 	if (pgadget == NULL) {
-		ERR("%s, bad param\n", __func__);
+		pr_err("%s, bad param\n", __func__);
 		return -EINVAL;
 	}
 
@@ -3152,7 +3148,7 @@ static int nbu2ss_gad_vbus_draw(struct usb_gadget *pgadget, unsigned mA)
 /*	INFO("=== %s()\n", __func__); */
 
 	if (pgadget == NULL) {
-		ERR("%s, bad param\n", __func__);
+		pr_err("%s, bad param\n", __func__);
 		return -EINVAL;
 	}
 
@@ -3174,7 +3170,7 @@ static int nbu2ss_gad_pullup(struct usb_gadget *pgadget, int is_on)
 /*	INFO("=== %s()\n", __func__); */
 
 	if (pgadget == NULL) {
-		ERR("%s, bad param\n", __func__);
+		pr_err("%s, bad param\n", __func__);
 		return -EINVAL;
 	}
 
@@ -3341,11 +3337,11 @@ static int nbu2ss_drv_probe(struct platform_device *pdev)
 				  0, driver_name, udc);
 
 	/* IO Memory */
-	udc->p_regs = (PT_FC_REGS)mmio_base;
+	udc->p_regs = (struct fc_regs *)mmio_base;
 
 	/* USB Function Controller Interrupt */
 	if (status != 0) {
-		ERR("request_irq(USB_UDC_IRQ_1) failed\n");
+		dev_err(udc->dev, "request_irq(USB_UDC_IRQ_1) failed\n");
 		goto cleanup1;
 	}
 
@@ -3365,7 +3361,7 @@ static int nbu2ss_drv_probe(struct platform_device *pdev)
 				udc);
 
 	if (status != 0) {
-		ERR("request_irq(INT_VBUS) failed\n");
+		dev_err(udc->dev, "request_irq(INT_VBUS) failed\n");
 		goto cleanup1;
 	}
 
diff --git a/drivers/staging/emxx_udc/emxx_udc.h b/drivers/staging/emxx_udc/emxx_udc.h
index 202e2dc..c19168f 100644
--- a/drivers/staging/emxx_udc/emxx_udc.h
+++ b/drivers/staging/emxx_udc/emxx_udc.h
@@ -474,8 +474,8 @@
 
 /*===========================================================================*/
 /* Struct */
-/*------- T_EP_REGS */
-typedef struct _T_EP_REGS {
+/*------- ep_regs */
+struct ep_regs {
 	u32 EP_CONTROL;			/* EP Control */
 	u32 EP_STATUS;			/* EP Status */
 	u32 EP_INT_ENA;			/* EP Interrupt Enable */
@@ -484,18 +484,18 @@ typedef struct _T_EP_REGS {
 	u32 EP_LEN_DCNT;		/* EP Length & DMA count */
 	u32 EP_READ;			/* EP Read */
 	u32 EP_WRITE;			/* EP Write */
-} T_EP_REGS, *PT_EP_REGS;
+};
 
-/*------- T_EP_DCR */
-typedef struct _T_EP_DCR {
+/*------- ep_dcr */
+struct ep_dcr {
 	u32 EP_DCR1;			/* EP_DCR1 */
 	u32 EP_DCR2;			/* EP_DCR2 */
 	u32 EP_TADR;			/* EP_TADR */
 	u32 Reserved;			/* Reserved */
-} T_EP_DCR, *PT_EP_DCR;
+};
 
 /*------- Function Registers */
-typedef struct _T_FC_REGS {
+struct fc_regs {
 	u32 USB_CONTROL;		/* (0x0000) USB Control */
 	u32 USB_STATUS;			/* (0x0004) USB Status */
 	u32 USB_ADDRESS;		/* (0x0008) USB Address */
@@ -513,7 +513,7 @@ typedef struct _T_FC_REGS {
 	u32 EP0_READ;			/* (0x0038) EP0 Read */
 	u32 EP0_WRITE;			/* (0x003C) EP0 Write */
 
-	T_EP_REGS EP_REGS[REG_EP_NUM];	/* Endpoint Register */
+	struct ep_regs EP_REGS[REG_EP_NUM];	/* Endpoint Register */
 
 	u8 Reserved220[0x1000-0x220];	/* (0x0220:0x0FFF) Reserved */
 
@@ -531,11 +531,10 @@ typedef struct _T_FC_REGS {
 
 	u8 Reserved1028[0x110-0x28];	/* (0x1028:0x110F) Reserved */
 
-	T_EP_DCR EP_DCR[REG_EP_NUM];	/* */
+	struct ep_dcr EP_DCR[REG_EP_NUM];	/* */
 
 	u8 Reserved1200[0x1000-0x200];	/* Reserved */
-
-} __attribute__ ((aligned(32))) T_FC_REGS, *PT_FC_REGS;
+} __aligned(32);
 
 
 
@@ -631,18 +630,17 @@ struct nbu2ss_udc {
 
 	u32		curr_config;	/* Current Configuration Number */
 
-	PT_FC_REGS		p_regs;
+	struct fc_regs		*p_regs;
 };
 
 /* USB register access structure */
-typedef volatile union {
+union usb_reg_access {
 	struct {
 		unsigned char	DATA[4];
 	} byte;
 	unsigned int		dw;
-} USB_REG_ACCESS;
+};
 
 /*-------------------------------------------------------------------------*/
-#define ERR(stuff...)		printk(KERN_ERR "udc: " stuff)
 
 #endif  /* _LINUX_EMXX_H */
diff --git a/drivers/staging/fbtft/Kconfig b/drivers/staging/fbtft/Kconfig
index 995a910..6cf0c58 100644
--- a/drivers/staging/fbtft/Kconfig
+++ b/drivers/staging/fbtft/Kconfig
@@ -38,6 +38,12 @@ config FB_TFT_HX8353D
 	help
 	  Generic Framebuffer support for HX8353D
 
+config FB_TFT_ILI9163
+	tristate "FB driver for the ILI9163 LCD Controller"
+	depends on FB_TFT
+	help
+	  Generic Framebuffer support for ILI9163
+
 config FB_TFT_ILI9320
 	tristate "FB driver for the ILI9320 LCD Controller"
 	depends on FB_TFT
diff --git a/drivers/staging/fbtft/Makefile b/drivers/staging/fbtft/Makefile
index e773f0f..9e73bee 100644
--- a/drivers/staging/fbtft/Makefile
+++ b/drivers/staging/fbtft/Makefile
@@ -8,6 +8,7 @@ obj-$(CONFIG_FB_TFT_BD663474)    += fb_bd663474.o
 obj-$(CONFIG_FB_TFT_HX8340BN)    += fb_hx8340bn.o
 obj-$(CONFIG_FB_TFT_HX8347D)     += fb_hx8347d.o
 obj-$(CONFIG_FB_TFT_HX8353D)     += fb_hx8353d.o
+obj-$(CONFIG_FB_TFT_ILI9163)     += fb_ili9163.o
 obj-$(CONFIG_FB_TFT_ILI9320)     += fb_ili9320.o
 obj-$(CONFIG_FB_TFT_ILI9325)     += fb_ili9325.o
 obj-$(CONFIG_FB_TFT_ILI9340)     += fb_ili9340.o
diff --git a/drivers/staging/fbtft/README b/drivers/staging/fbtft/README
index bc89b58..ba4c74c 100644
--- a/drivers/staging/fbtft/README
+++ b/drivers/staging/fbtft/README
@@ -9,20 +9,20 @@ Development is done on a Raspberry Pi running the Raspbian "wheezy" distribution
 INSTALLATION
   Download kernel sources
 
-  From Linux 3.15  
+  From Linux 3.15
     cd drivers/video/fbdev/fbtft
     git clone https://github.com/notro/fbtft.git
-    
+
     Add to drivers/video/fbdev/Kconfig:   source "drivers/video/fbdev/fbtft/Kconfig"
     Add to drivers/video/fbdev/Makefile:  obj-y += fbtft/
-  
-  Before Linux 3.15  
+
+  Before Linux 3.15
     cd drivers/video
     git clone https://github.com/notro/fbtft.git
-    
+
     Add to drivers/video/Kconfig:   source "drivers/video/fbtft/Kconfig"
     Add to drivers/video/Makefile:  obj-y += fbtft/
-  
+
   Enable driver(s) in menuconfig and build the kernel
 
 
diff --git a/drivers/staging/fbtft/fb_agm1264k-fl.c b/drivers/staging/fbtft/fb_agm1264k-fl.c
index 9cc7d25..8f5af1d 100644
--- a/drivers/staging/fbtft/fb_agm1264k-fl.c
+++ b/drivers/staging/fbtft/fb_agm1264k-fl.c
@@ -174,7 +174,7 @@ request_gpios_match(struct fbtft_par *par, const struct fbtft_gpio *gpio)
 
 /* This function oses to enter commands
  * first byte - destination controller 0 or 1
- * folowing - commands
+ * following - commands
  */
 static void write_reg8_bus8(struct fbtft_par *par, int len, ...)
 {
@@ -198,8 +198,8 @@ static void write_reg8_bus8(struct fbtft_par *par, int len, ...)
 
 	if (*buf > 1) {
 		va_end(args);
-		dev_err(par->info->device, "%s: Incorrect chip sellect request (%d)\n",
-			__func__, *buf);
+		dev_err(par->info->device,
+			"Incorrect chip select request (%d)\n", *buf);
 		return;
 	}
 
@@ -224,8 +224,8 @@ static void write_reg8_bus8(struct fbtft_par *par, int len, ...)
 		ret = par->fbtftops.write(par, par->buf, len * (sizeof(u8)));
 		if (ret < 0) {
 			va_end(args);
-			dev_err(par->info->device, "%s: write() failed and returned %d\n",
-				__func__, ret);
+			dev_err(par->info->device,
+				"write() failed and returned %d\n", ret);
 			return;
 		}
 	}
@@ -278,10 +278,13 @@ static int write_vmem(struct fbtft_par *par, size_t offset, size_t len)
 	int x, y;
 	int ret = 0;
 
-	/* buffer to convert RGB565 -> grayscale16 -> Ditherd image 1bpp */
+	/* buffer to convert RGB565 -> grayscale16 -> Dithered image 1bpp */
 	signed short *convert_buf = kmalloc(par->info->var.xres *
 		par->info->var.yres * sizeof(signed short), GFP_NOIO);
 
+	if (!convert_buf)
+		return -ENOMEM;
+
 	fbtft_par_dbg(DEBUG_WRITE_VMEM, par, "%s()\n", __func__);
 
 	/* converting to grayscale16 */
@@ -376,8 +379,8 @@ static int write_vmem(struct fbtft_par *par, size_t offset, size_t len)
 			ret = par->fbtftops.write(par, buf, len);
 			if (ret < 0)
 				dev_err(par->info->device,
-					"%s: write failed and returned: %d\n",
-					__func__, ret);
+					"write failed and returned: %d\n",
+					ret);
 		}
 		/* right half of display */
 		if (addr_win.xe >= par->info->var.xres / 2) {
@@ -390,7 +393,7 @@ static int write_vmem(struct fbtft_par *par, size_t offset, size_t len)
 			/* select right side (sc1)
 			 * set addr
 			 */
-			write_reg(par, 0x01, (1 << 6));
+			write_reg(par, 0x01, 1 << 6);
 			write_reg(par, 0x01, (0x17 << 3) | (u8)y);
 
 			/* write bitmap */
@@ -398,8 +401,8 @@ static int write_vmem(struct fbtft_par *par, size_t offset, size_t len)
 			par->fbtftops.write(par, buf, len);
 			if (ret < 0)
 				dev_err(par->info->device,
-					"%s: write failed and returned: %d\n",
-					__func__, ret);
+					"write failed and returned: %d\n",
+					ret);
 		}
 	}
 	kfree(convert_buf);
diff --git a/drivers/staging/fbtft/fb_bd663474.c b/drivers/staging/fbtft/fb_bd663474.c
index 7e00c60..17a2162 100644
--- a/drivers/staging/fbtft/fb_bd663474.c
+++ b/drivers/staging/fbtft/fb_bd663474.c
@@ -47,49 +47,49 @@ static int init_display(struct fbtft_par *par)
 	/* Initialization sequence from Lib_UTFT */
 
 	/* oscillator start */
-	write_reg(par, 0x000,0x0001);	/*oscillator 0: stop, 1: operation */
+	write_reg(par, 0x000, 0x0001);	/*oscillator 0: stop, 1: operation */
 	mdelay(10);
 
 	/* Power settings */
-	write_reg(par, 0x100, 0x0000 ); /* power supply setup */
-	write_reg(par, 0x101, 0x0000 );
-	write_reg(par, 0x102, 0x3110 );
-	write_reg(par, 0x103, 0xe200 );
-	write_reg(par, 0x110, 0x009d );
-	write_reg(par, 0x111, 0x0022 );
-	write_reg(par, 0x100, 0x0120 );
-	mdelay( 20 );
-
-	write_reg(par, 0x100, 0x3120 );
-	mdelay( 80 );
+	write_reg(par, 0x100, 0x0000); /* power supply setup */
+	write_reg(par, 0x101, 0x0000);
+	write_reg(par, 0x102, 0x3110);
+	write_reg(par, 0x103, 0xe200);
+	write_reg(par, 0x110, 0x009d);
+	write_reg(par, 0x111, 0x0022);
+	write_reg(par, 0x100, 0x0120);
+	mdelay(20);
+
+	write_reg(par, 0x100, 0x3120);
+	mdelay(80);
 	/* Display control */
-	write_reg(par, 0x001, 0x0100 );
-	write_reg(par, 0x002, 0x0000 );
-	write_reg(par, 0x003, 0x1230 );
-	write_reg(par, 0x006, 0x0000 );
-	write_reg(par, 0x007, 0x0101 );
-	write_reg(par, 0x008, 0x0808 );
-	write_reg(par, 0x009, 0x0000 );
-	write_reg(par, 0x00b, 0x0000 );
-	write_reg(par, 0x00c, 0x0000 );
-	write_reg(par, 0x00d, 0x0018 );
+	write_reg(par, 0x001, 0x0100);
+	write_reg(par, 0x002, 0x0000);
+	write_reg(par, 0x003, 0x1230);
+	write_reg(par, 0x006, 0x0000);
+	write_reg(par, 0x007, 0x0101);
+	write_reg(par, 0x008, 0x0808);
+	write_reg(par, 0x009, 0x0000);
+	write_reg(par, 0x00b, 0x0000);
+	write_reg(par, 0x00c, 0x0000);
+	write_reg(par, 0x00d, 0x0018);
 	/* LTPS control settings */
-	write_reg(par, 0x012, 0x0000 );
-	write_reg(par, 0x013, 0x0000 );
-	write_reg(par, 0x018, 0x0000 );
-	write_reg(par, 0x019, 0x0000 );
-
-	write_reg(par, 0x203, 0x0000 );
-	write_reg(par, 0x204, 0x0000 );
-
-	write_reg(par, 0x210, 0x0000 );
-	write_reg(par, 0x211, 0x00ef );
-	write_reg(par, 0x212, 0x0000 );
-	write_reg(par, 0x213, 0x013f );
-	write_reg(par, 0x214, 0x0000 );
-	write_reg(par, 0x215, 0x0000 );
-	write_reg(par, 0x216, 0x0000 );
-	write_reg(par, 0x217, 0x0000 );
+	write_reg(par, 0x012, 0x0000);
+	write_reg(par, 0x013, 0x0000);
+	write_reg(par, 0x018, 0x0000);
+	write_reg(par, 0x019, 0x0000);
+
+	write_reg(par, 0x203, 0x0000);
+	write_reg(par, 0x204, 0x0000);
+
+	write_reg(par, 0x210, 0x0000);
+	write_reg(par, 0x211, 0x00ef);
+	write_reg(par, 0x212, 0x0000);
+	write_reg(par, 0x213, 0x013f);
+	write_reg(par, 0x214, 0x0000);
+	write_reg(par, 0x215, 0x0000);
+	write_reg(par, 0x216, 0x0000);
+	write_reg(par, 0x217, 0x0000);
 
 	/* Gray scale settings */
 	write_reg(par, 0x300, 0x5343);
@@ -104,18 +104,18 @@ static int init_display(struct fbtft_par *par)
 	write_reg(par, 0x309, 0x050a);
 
 	/* RAM access settings */
-	write_reg(par, 0x400, 0x4027 );
-	write_reg(par, 0x401, 0x0000 );
-	write_reg(par, 0x402, 0x0000 );  /* First screen drive position (1) */
-	write_reg(par, 0x403, 0x013f );  /* First screen drive position (2) */
-	write_reg(par, 0x404, 0x0000 );
-
-	write_reg(par, 0x200, 0x0000 );
-	write_reg(par, 0x201, 0x0000 );
-	write_reg(par, 0x100, 0x7120 );
-	write_reg(par, 0x007, 0x0103 );
-	mdelay( 10 );
-	write_reg(par, 0x007, 0x0113 );
+	write_reg(par, 0x400, 0x4027);
+	write_reg(par, 0x401, 0x0000);
+	write_reg(par, 0x402, 0x0000);  /* First screen drive position (1) */
+	write_reg(par, 0x403, 0x013f);  /* First screen drive position (2) */
+	write_reg(par, 0x404, 0x0000);
+
+	write_reg(par, 0x200, 0x0000);
+	write_reg(par, 0x201, 0x0000);
+	write_reg(par, 0x100, 0x7120);
+	write_reg(par, 0x007, 0x0103);
+	mdelay(10);
+	write_reg(par, 0x007, 0x0113);
 
 	return 0;
 }
diff --git a/drivers/staging/fbtft/fb_hx8340bn.c b/drivers/staging/fbtft/fb_hx8340bn.c
index 3939502..54528aa 100644
--- a/drivers/staging/fbtft/fb_hx8340bn.c
+++ b/drivers/staging/fbtft/fb_hx8340bn.c
@@ -4,7 +4,7 @@
  * This display uses 9-bit SPI: Data/Command bit + 8 data bits
  * For platforms that doesn't support 9-bit, the driver is capable
  * of emulating this using 8-bit transfer.
- * This is done by transfering eight 9-bit words in 9 bytes.
+ * This is done by transferring eight 9-bit words in 9 bytes.
  *
  * Copyright (C) 2013 Noralf Tronnes
  *
@@ -47,8 +47,6 @@ MODULE_PARM_DESC(emulate, "Force emulation in 9-bit mode");
 
 static int init_display(struct fbtft_par *par)
 {
-	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
-
 	par->fbtftops.reset(par);
 
 	/* BTL221722-276L startup sequence, from datasheet */
@@ -108,11 +106,8 @@ static int init_display(struct fbtft_par *par)
 	return 0;
 }
 
-void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)
+static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)
 {
-	fbtft_par_dbg(DEBUG_SET_ADDR_WIN, par,
-		"%s(xs=%d, ys=%d, xe=%d, ye=%d)\n", __func__, xs, ys, xe, ye);
-
 	write_reg(par, FBTFT_CASET, 0x00, xs, 0x00, xe);
 	write_reg(par, FBTFT_RASET, 0x00, ys, 0x00, ye);
 	write_reg(par, FBTFT_RAMWR);
@@ -120,8 +115,6 @@ void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)
 
 static int set_var(struct fbtft_par *par)
 {
-	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
-
 	/* MADCTL - Memory data access control */
 	/* RGB/BGR can be set with H/W pin SRGB and MADCTL BGR bit */
 #define MY (1 << 7)
@@ -129,7 +122,7 @@ static int set_var(struct fbtft_par *par)
 #define MV (1 << 5)
 	switch (par->info->var.rotate) {
 	case 0:
-		write_reg(par, 0x36, (par->bgr << 3));
+		write_reg(par, 0x36, par->bgr << 3);
 		break;
 	case 270:
 		write_reg(par, 0x36, MX | MV | (par->bgr << 3));
@@ -156,14 +149,12 @@ static int set_var(struct fbtft_par *par)
 static int set_gamma(struct fbtft_par *par, unsigned long *curves)
 {
 	unsigned long mask[] = {
-		0b1111, 0b1111, 0b11111, 0b1111, 0b1111, 0b1111, 0b11111,
-		0b111, 0b111, 0b111, 0b111, 0b111, 0b111, 0b11, 0b11,
-		0b1111, 0b1111, 0b11111, 0b1111, 0b1111, 0b1111, 0b11111,
-		0b111, 0b111, 0b111, 0b111, 0b111, 0b111, 0b0, 0b0 };
+		0x0f, 0x0f, 0x1f, 0x0f, 0x0f, 0x0f, 0x1f, 0x07, 0x07, 0x07,
+		0x07, 0x07, 0x07, 0x03, 0x03, 0x0f, 0x0f, 0x1f, 0x0f, 0x0f,
+		0x0f, 0x1f, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x00, 0x00,
+	};
 	int i, j;
 
-	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
-
 	/* apply mask */
 	for (i = 0; i < par->gamma.num_curves; i++)
 		for (j = 0; j < par->gamma.num_values; j++)
diff --git a/drivers/staging/fbtft/fb_hx8347d.c b/drivers/staging/fbtft/fb_hx8347d.c
index 8139a8f..03ae95b 100644
--- a/drivers/staging/fbtft/fb_hx8347d.c
+++ b/drivers/staging/fbtft/fb_hx8347d.c
@@ -115,10 +115,9 @@ static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)
 static int set_gamma(struct fbtft_par *par, unsigned long *curves)
 {
 	unsigned long mask[] = {
-		0b111111, 0b111111, 0b111111, 0b111111, 0b111111, 0b111111,
-		0b1111111, 0b1111111,
-		0b11111, 0b11111, 0b11111, 0b11111, 0b11111,
-		0b1111};
+		0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x7f, 0x7f, 0x1f, 0x1f,
+		0x1f, 0x1f, 0x1f, 0x0f,
+	};
 	int i, j;
 	int acc = 0;
 
diff --git a/drivers/staging/fbtft/fb_hx8353d.c b/drivers/staging/fbtft/fb_hx8353d.c
index c9512dc..d7f4308 100644
--- a/drivers/staging/fbtft/fb_hx8353d.c
+++ b/drivers/staging/fbtft/fb_hx8353d.c
@@ -84,7 +84,7 @@ static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)
 	/* column address */
 	write_reg(par, 0x2a, xs >> 8, xs & 0xff, xe >> 8, xe & 0xff);
 
-	/* row adress */
+	/* Row address */
 	write_reg(par, 0x2b, ys >> 8, ys & 0xff, ye >> 8, ye & 0xff);
 
 	/* memory write */
@@ -112,7 +112,7 @@ static int set_var(struct fbtft_par *par)
 		write_reg(par, 0x36, my | mv | (par->bgr << 3));
 		break;
 	case 180:
-		write_reg(par, 0x36, (par->bgr << 3));
+		write_reg(par, 0x36, par->bgr << 3);
 		break;
 	case 90:
 		write_reg(par, 0x36, mx | mv | (par->bgr << 3));
diff --git a/drivers/staging/fbtft/fb_ili9163.c b/drivers/staging/fbtft/fb_ili9163.c
new file mode 100644
index 0000000..ed92a64
--- /dev/null
+++ b/drivers/staging/fbtft/fb_ili9163.c
@@ -0,0 +1,303 @@
+/*
+ * FB driver for the ILI9163 LCD Controller
+ *
+ * Copyright (C) 2015 Kozhevnikov Anatoly
+ *
+ * Based on ili9325.c by Noralf Tronnes and
+ * .S.U.M.O.T.O.Y. by Max MC Costa (https://github.com/sumotoy/TFT_ILI9163C).
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/gpio.h>
+#include <linux/delay.h>
+
+#include "fbtft.h"
+
+#define DRVNAME		"fb_ili9163"
+#define WIDTH		128
+#define HEIGHT		128
+#define BPP		16
+#define FPS		30
+
+#ifdef GAMMA_ADJ
+#define GAMMA_LEN	15
+#define GAMMA_NUM	1
+#define DEFAULT_GAMMA	"36 29 12 22 1C 15 42 B7 2F 13 12 0A 11 0B 06\n"
+#endif
+
+/* ILI9163C commands */
+#define CMD_NOP		0x00 /* Non operation*/
+#define CMD_SWRESET	0x01 /* Soft Reset */
+#define CMD_SLPIN	0x10 /* Sleep ON */
+#define CMD_SLPOUT	0x11 /* Sleep OFF */
+#define CMD_PTLON	0x12 /* Partial Mode ON */
+#define CMD_NORML	0x13 /* Normal Display ON */
+#define CMD_DINVOF	0x20 /* Display Inversion OFF */
+#define CMD_DINVON	0x21 /* Display Inversion ON */
+#define CMD_GAMMASET	0x26 /* Gamma Set (0x01[1],0x02[2],0x04[3],0x08[4]) */
+#define CMD_DISPOFF	0x28 /* Display OFF */
+#define CMD_DISPON	0x29 /* Display ON */
+#define CMD_IDLEON	0x39 /* Idle Mode ON */
+#define CMD_IDLEOF	0x38 /* Idle Mode OFF */
+#define CMD_CLMADRS	0x2A /* Column Address Set */
+#define CMD_PGEADRS	0x2B /* Page Address Set */
+
+#define CMD_RAMWR	0x2C /* Memory Write */
+#define CMD_RAMRD	0x2E /* Memory Read */
+#define CMD_CLRSPACE	0x2D /* Color Space : 4K/65K/262K */
+#define CMD_PARTAREA	0x30 /* Partial Area */
+#define CMD_VSCLLDEF	0x33 /* Vertical Scroll Definition */
+#define CMD_TEFXLON	0x34 /* Tearing Effect Line ON */
+#define CMD_TEFXLOF	0x35 /* Tearing Effect Line OFF */
+#define CMD_MADCTL	0x36 /* Memory Access Control */
+
+#define CMD_PIXFMT	0x3A /* Interface Pixel Format */
+#define CMD_FRMCTR1	0xB1 /* Frame Rate Control
+				(In normal mode/Full colors) */
+#define CMD_FRMCTR2	0xB2 /* Frame Rate Control (In Idle mode/8-colors) */
+#define CMD_FRMCTR3	0xB3 /* Frame Rate Control
+				(In Partial mode/full colors) */
+#define CMD_DINVCTR	0xB4 /* Display Inversion Control */
+#define CMD_RGBBLK	0xB5 /* RGB Interface Blanking Porch setting */
+#define CMD_DFUNCTR	0xB6 /* Display Function set 5 */
+#define CMD_SDRVDIR	0xB7 /* Source Driver Direction Control */
+#define CMD_GDRVDIR	0xB8 /* Gate Driver Direction Control  */
+
+#define CMD_PWCTR1	0xC0 /* Power_Control1 */
+#define CMD_PWCTR2	0xC1 /* Power_Control2 */
+#define CMD_PWCTR3	0xC2 /* Power_Control3 */
+#define CMD_PWCTR4	0xC3 /* Power_Control4 */
+#define CMD_PWCTR5	0xC4 /* Power_Control5 */
+#define CMD_VCOMCTR1	0xC5 /* VCOM_Control 1 */
+#define CMD_VCOMCTR2	0xC6 /* VCOM_Control 2 */
+#define CMD_VCOMOFFS	0xC7 /* VCOM Offset Control */
+#define CMD_PGAMMAC	0xE0 /* Positive Gamma Correction Setting */
+#define CMD_NGAMMAC	0xE1 /* Negative Gamma Correction Setting */
+#define CMD_GAMRSEL	0xF2 /* GAM_R_SEL */
+
+/*
+This display:
+http://www.ebay.com/itm/Replace-Nokia-5110-LCD-1-44-Red-Serial-128X128-SPI-Color-TFT-LCD-Display-Module-/271422122271
+This particular display has a design error! The controller has 3 pins to
+configure to constrain the memory and resolution to a fixed dimension (in
+that case 128x128) but they leaved those pins configured for 128x160 so
+there was several pixel memory addressing problems.
+I solved by setup several parameters that dinamically fix the resolution as
+needit so below the parameters for this display. If you have a strain or a
+correct display (can happen with chinese) you can copy those parameters and
+create setup for different displays.
+*/
+
+#ifdef RED
+#define __OFFSET		32 /*see note 2 - this is the red version */
+#else
+#define __OFFSET		0  /*see note 2 - this is the black version */
+#endif
+
+static int init_display(struct fbtft_par *par)
+{
+	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
+
+	par->fbtftops.reset(par);
+
+	if (par->gpio.cs != -1)
+		gpio_set_value(par->gpio.cs, 0);  /* Activate chip */
+
+	write_reg(par, CMD_SWRESET); /* software reset */
+	mdelay(500);
+	write_reg(par, CMD_SLPOUT); /* exit sleep */
+	mdelay(5);
+	write_reg(par, CMD_PIXFMT, 0x05); /* Set Color Format 16bit */
+	write_reg(par, CMD_GAMMASET, 0x02); /* default gamma curve 3 */
+#ifdef GAMMA_ADJ
+	write_reg(par, CMD_GAMRSEL, 0x01); /* Enable Gamma adj */
+#endif
+	write_reg(par, CMD_NORML);
+	write_reg(par, CMD_DFUNCTR, 0xff, 0x06);
+	/* Frame Rate Control (In normal mode/Full colors) */
+	write_reg(par, CMD_FRMCTR1, 0x08, 0x02);
+	write_reg(par, CMD_DINVCTR, 0x07); /* display inversion  */
+	/* Set VRH1[4:0] & VC[2:0] for VCI1 & GVDD */
+	write_reg(par, CMD_PWCTR1, 0x0A, 0x02);
+	/* Set BT[2:0] for AVDD & VCL & VGH & VGL  */
+	write_reg(par, CMD_PWCTR2, 0x02);
+	/* Set VMH[6:0] & VML[6:0] for VOMH & VCOML */
+	write_reg(par, CMD_VCOMCTR1, 0x50, 0x63);
+	write_reg(par, CMD_VCOMOFFS, 0);
+
+	write_reg(par, CMD_CLMADRS, 0, 0, 0, WIDTH); /* Set Column Address */
+	write_reg(par, CMD_PGEADRS, 0, 0, 0, HEIGHT); /* Set Page Address */
+
+	write_reg(par, CMD_DISPON); /* display ON */
+	write_reg(par, CMD_RAMWR); /* Memory Write */
+
+	return 0;
+}
+
+static void set_addr_win(struct fbtft_par *par, int xs, int ys,
+				int xe, int ye)
+{
+	fbtft_par_dbg(DEBUG_SET_ADDR_WIN, par,
+		"%s(xs=%d, ys=%d, xe=%d, ye=%d)\n", __func__, xs, ys, xe, ye);
+
+	switch (par->info->var.rotate) {
+	case 0:
+		write_reg(par, CMD_CLMADRS, xs >> 8, xs & 0xff, xe >> 8,
+				xe & 0xff);
+		write_reg(par, CMD_PGEADRS,
+				(ys + __OFFSET) >> 8, (ys + __OFFSET) & 0xff,
+				(ye + __OFFSET) >> 8, (ye + __OFFSET) & 0xff);
+		break;
+	case 90:
+		write_reg(par, CMD_CLMADRS,
+				(xs + __OFFSET) >> 8, (xs + __OFFSET) & 0xff,
+				(xe + __OFFSET) >> 8, (xe + __OFFSET) & 0xff);
+		write_reg(par, CMD_PGEADRS, ys >> 8, ys & 0xff, ye >> 8,
+				ye & 0xff);
+		break;
+	case 180:
+	case 270:
+		write_reg(par, CMD_CLMADRS, xs >> 8, xs & 0xff, xe >> 8,
+				xe & 0xff);
+		write_reg(par, CMD_PGEADRS, ys >> 8, ys & 0xff, ye >> 8,
+				ye & 0xff);
+		break;
+	default:
+		par->info->var.rotate = 0; /* Fix incorrect setting */
+	}
+	write_reg(par, CMD_RAMWR); /* Write Data to GRAM mode */
+}
+
+/*
+7) MY:  1(bottom to top),	0(top to bottom)    Row Address Order
+6) MX:  1(R to L),		0(L to R)	    Column Address Order
+5) MV:  1(Exchanged),		0(normal)	    Row/Column exchange
+4) ML:  1(bottom to top),	0(top to bottom)    Vertical Refresh Order
+3) RGB: 1(BGR),			0(RGB)		    Color Space
+2) MH:  1(R to L),		0(L to R)	    Horizontal Refresh Order
+1)
+0)
+
+	MY, MX, MV, ML,RGB, MH, D1, D0
+	0 | 0 | 0 | 0 | 1 | 0 | 0 | 0	//normal
+	1 | 0 | 0 | 0 | 1 | 0 | 0 | 0	//Y-Mirror
+	0 | 1 | 0 | 0 | 1 | 0 | 0 | 0	//X-Mirror
+	1 | 1 | 0 | 0 | 1 | 0 | 0 | 0	//X-Y-Mirror
+	0 | 0 | 1 | 0 | 1 | 0 | 0 | 0	//X-Y Exchange
+	1 | 0 | 1 | 0 | 1 | 0 | 0 | 0	//X-Y Exchange, Y-Mirror
+	0 | 1 | 1 | 0 | 1 | 0 | 0 | 0	//XY exchange
+	1 | 1 | 1 | 0 | 1 | 0 | 0 | 0
+*/
+static int set_var(struct fbtft_par *par)
+{
+	u8 mactrl_data = 0; /* Avoid compiler warning */
+
+	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
+
+	switch (par->info->var.rotate) {
+	case 0:
+		mactrl_data = 0x08;
+		break;
+	case 180:
+		mactrl_data = 0xC8;
+		break;
+	case 270:
+		mactrl_data = 0xA8;
+		break;
+	case 90:
+		mactrl_data = 0x68;
+		break;
+	}
+
+	/* Colorspcae */
+	if (par->bgr)
+		mactrl_data |= (1 << 2);
+	write_reg(par, CMD_MADCTL, mactrl_data);
+	write_reg(par, CMD_RAMWR); /* Write Data to GRAM mode */
+	return 0;
+}
+
+#ifdef GAMMA_ADJ
+#define CURVE(num, idx)  curves[num*par->gamma.num_values + idx]
+static int gamma_adj(struct fbtft_par *par, unsigned long *curves)
+{
+	unsigned long mask[] = {
+		0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
+		0x1f, 0x3f, 0x0f, 0x0f, 0x7f, 0x1f,
+		0x3F, 0x3F, 0x3F, 0x3F, 0x3F};
+	int i, j;
+
+	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
+
+	for (i = 0; i < GAMMA_NUM; i++)
+		for (j = 0; j < GAMMA_LEN; j++)
+			CURVE(i, j) &= mask[i*par->gamma.num_values + j];
+
+	write_reg(par, CMD_PGAMMAC,
+				CURVE(0, 0),
+				CURVE(0, 1),
+				CURVE(0, 2),
+				CURVE(0, 3),
+				CURVE(0, 4),
+				CURVE(0, 5),
+				CURVE(0, 6),
+				(CURVE(0, 7) << 4) | CURVE(0, 8),
+				CURVE(0, 9),
+				CURVE(0, 10),
+				CURVE(0, 11),
+				CURVE(0, 12),
+				CURVE(0, 13),
+				CURVE(0, 14),
+				CURVE(0, 15)
+				);
+
+	write_reg(par, CMD_RAMWR); /* Write Data to GRAM mode */
+
+	return 0;
+}
+#undef CURVE
+#endif
+
+static struct fbtft_display display = {
+	.regwidth = 8,
+	.width = WIDTH,
+	.height = HEIGHT,
+	.bpp = BPP,
+	.fps = FPS,
+#ifdef GAMMA_ADJ
+	.gamma_num = GAMMA_NUM,
+	.gamma_len = GAMMA_LEN,
+	.gamma = DEFAULT_GAMMA,
+#endif
+	.fbtftops = {
+		.init_display = init_display,
+		.set_addr_win = set_addr_win,
+		.set_var = set_var,
+#ifdef GAMMA_ADJ
+		.set_gamma = gamma_adj,
+#endif
+	},
+};
+
+FBTFT_REGISTER_DRIVER(DRVNAME, "ilitek,ili9163", &display);
+
+MODULE_ALIAS("spi:" DRVNAME);
+MODULE_ALIAS("platform:" DRVNAME);
+MODULE_ALIAS("spi:ili9163");
+MODULE_ALIAS("platform:ili9163");
+
+MODULE_DESCRIPTION("FB driver for the ILI9163 LCD Controller");
+MODULE_AUTHOR("Kozhevnikov Anatoly");
+MODULE_LICENSE("GPL");
diff --git a/drivers/staging/fbtft/fb_ili9320.c b/drivers/staging/fbtft/fb_ili9320.c
index b26d893..3a02edd 100644
--- a/drivers/staging/fbtft/fb_ili9320.c
+++ b/drivers/staging/fbtft/fb_ili9320.c
@@ -47,6 +47,7 @@ static unsigned read_devicecode(struct fbtft_par *par)
 static int init_display(struct fbtft_par *par)
 {
 	unsigned devcode;
+
 	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
 
 	par->fbtftops.reset(par);
@@ -178,10 +179,9 @@ static int set_var(struct fbtft_par *par)
 static int set_gamma(struct fbtft_par *par, unsigned long *curves)
 {
 	unsigned long mask[] = {
-		0b11111, 0b11111, 0b111, 0b111, 0b111,
-		0b111, 0b111, 0b111, 0b111, 0b111,
-		0b11111, 0b11111, 0b111, 0b111, 0b111,
-		0b111, 0b111, 0b111, 0b111, 0b111 };
+		0x1f, 0x1f, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07,
+		0x1f, 0x1f, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07,
+	};
 	int i, j;
 
 	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
diff --git a/drivers/staging/fbtft/fb_ili9325.c b/drivers/staging/fbtft/fb_ili9325.c
index 5f88145..19d254e 100644
--- a/drivers/staging/fbtft/fb_ili9325.c
+++ b/drivers/staging/fbtft/fb_ili9325.c
@@ -41,22 +41,22 @@ static unsigned bt = 6; /* VGL=Vci*4 , VGH=Vci*4 */
 module_param(bt, uint, 0);
 MODULE_PARM_DESC(bt, "Sets the factor used in the step-up circuits");
 
-static unsigned vc = 0b011; /* Vci1=Vci*0.80 */
+static unsigned vc = 0x03; /* Vci1=Vci*0.80 */
 module_param(vc, uint, 0);
 MODULE_PARM_DESC(vc,
 "Sets the ratio factor of Vci to generate the reference voltages Vci1");
 
-static unsigned vrh = 0b1101; /* VREG1OUT=Vci*1.85 */
+static unsigned vrh = 0x0d; /* VREG1OUT=Vci*1.85 */
 module_param(vrh, uint, 0);
 MODULE_PARM_DESC(vrh,
 "Set the amplifying rate (1.6 ~ 1.9) of Vci applied to output the VREG1OUT");
 
-static unsigned vdv = 0b10010; /* VCOMH amplitude=VREG1OUT*0.98 */
+static unsigned vdv = 0x12; /* VCOMH amplitude=VREG1OUT*0.98 */
 module_param(vdv, uint, 0);
 MODULE_PARM_DESC(vdv,
 "Select the factor of VREG1OUT to set the amplitude of Vcom");
 
-static unsigned vcm = 0b001010; /* VCOMH=VREG1OUT*0.735 */
+static unsigned vcm = 0x0a; /* VCOMH=VREG1OUT*0.735 */
 module_param(vcm, uint, 0);
 MODULE_PARM_DESC(vcm, "Set the internal VcomH voltage");
 
@@ -108,11 +108,11 @@ static int init_display(struct fbtft_par *par)
 	if (par->gpio.cs != -1)
 		gpio_set_value(par->gpio.cs, 0);  /* Activate chip */
 
-	bt &= 0b111;
-	vc &= 0b111;
-	vrh &= 0b1111;
-	vdv &= 0b11111;
-	vcm &= 0b111111;
+	bt &= 0x07;
+	vc &= 0x07;
+	vrh &= 0x0f;
+	vdv &= 0x1f;
+	vcm &= 0x3f;
 
 	/* Initialization sequence from ILI9325 Application Notes */
 
@@ -137,7 +137,7 @@ static int init_display(struct fbtft_par *par)
 	write_reg(par, 0x0013, 0x0000); /* VDV[4:0] for VCOM amplitude */
 	mdelay(200); /* Dis-charge capacitor power voltage */
 	write_reg(par, 0x0010, /* SAP, BT[3:0], AP, DSTB, SLP, STB */
-		(1 << 12) | (bt << 8) | (1 << 7) | (0b001 << 4));
+		(1 << 12) | (bt << 8) | (1 << 7) | (0x01 << 4));
 	write_reg(par, 0x0011, 0x220 | vc); /* DC1[2:0], DC0[2:0], VC[2:0] */
 	mdelay(50); /* Delay 50ms */
 	write_reg(par, 0x0012, vrh); /* Internal reference voltage= Vci; */
@@ -233,10 +233,9 @@ static int set_var(struct fbtft_par *par)
 static int set_gamma(struct fbtft_par *par, unsigned long *curves)
 {
 	unsigned long mask[] = {
-		0b11111, 0b11111, 0b111, 0b111, 0b111,
-		0b111, 0b111, 0b111, 0b111, 0b111,
-		0b11111, 0b11111, 0b111, 0b111, 0b111,
-		0b111, 0b111, 0b111, 0b111, 0b111 };
+		0x1f, 0x1f, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07,
+		0x1f, 0x1f, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07,
+	};
 	int i, j;
 
 	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
diff --git a/drivers/staging/fbtft/fb_ili9340.c b/drivers/staging/fbtft/fb_ili9340.c
index 985687d..0f4a42f 100644
--- a/drivers/staging/fbtft/fb_ili9340.c
+++ b/drivers/staging/fbtft/fb_ili9340.c
@@ -39,12 +39,12 @@ static int init_display(struct fbtft_par *par)
 	par->fbtftops.reset(par);
 
 	write_reg(par, 0xEF, 0x03, 0x80, 0x02);
-	write_reg(par, 0xCF, 0x00 , 0XC1 , 0X30);
-	write_reg(par, 0xED, 0x64 , 0x03 , 0X12 , 0X81);
-	write_reg(par, 0xE8, 0x85 , 0x00 , 0x78);
-	write_reg(par, 0xCB, 0x39 , 0x2C , 0x00 , 0x34 , 0x02);
+	write_reg(par, 0xCF, 0x00, 0XC1, 0X30);
+	write_reg(par, 0xED, 0x64, 0x03, 0X12, 0X81);
+	write_reg(par, 0xE8, 0x85, 0x00, 0x78);
+	write_reg(par, 0xCB, 0x39, 0x2C, 0x00, 0x34, 0x02);
 	write_reg(par, 0xF7, 0x20);
-	write_reg(par, 0xEA, 0x00 , 0x00);
+	write_reg(par, 0xEA, 0x00, 0x00);
 
 	/* Power Control 1 */
 	write_reg(par, 0xC0, 0x23);
@@ -104,7 +104,7 @@ static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)
 	/* Column address */
 	write_reg(par, 0x2A, xs >> 8, xs & 0xFF, xe >> 8, xe & 0xFF);
 
-	/* Row adress */
+	/* Row address */
 	write_reg(par, 0x2B, ys >> 8, ys & 0xFF, ye >> 8, ye & 0xFF);
 
 	/* Memory write */
diff --git a/drivers/staging/fbtft/fb_ili9341.c b/drivers/staging/fbtft/fb_ili9341.c
index 225b2d8..709492e 100644
--- a/drivers/staging/fbtft/fb_ili9341.c
+++ b/drivers/staging/fbtft/fb_ili9341.c
@@ -4,7 +4,7 @@
  * This display uses 9-bit SPI: Data/Command bit + 8 data bits
  * For platforms that doesn't support 9-bit, the driver is capable
  * of emulating this using 8-bit transfer.
- * This is done by transfering eight 9-bit words in 9 bytes.
+ * This is done by transferring eight 9-bit words in 9 bytes.
  *
  * Copyright (C) 2013 Christian Vogelgsang
  * Based on adafruit22fb.c by Noralf Tronnes
@@ -89,7 +89,7 @@ static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)
 	write_reg(par, 0x2A,
 		(xs >> 8) & 0xFF, xs & 0xFF, (xe >> 8) & 0xFF, xe & 0xFF);
 
-	/* Row adress set */
+	/* Row address set */
 	write_reg(par, 0x2B,
 		(ys >> 8) & 0xFF, ys & 0xFF, (ye >> 8) & 0xFF, ye & 0xFF);
 
diff --git a/drivers/staging/fbtft/fb_ili9481.c b/drivers/staging/fbtft/fb_ili9481.c
index 725157a..8bae09c 100644
--- a/drivers/staging/fbtft/fb_ili9481.c
+++ b/drivers/staging/fbtft/fb_ili9481.c
@@ -63,7 +63,7 @@ static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)
 	/* column address */
 	write_reg(par, 0x2a, xs >> 8, xs & 0xff, xe >> 8, xe & 0xff);
 
-	/* row adress */
+	/* Row address */
 	write_reg(par, 0x2b, ys >> 8, ys & 0xff, ye >> 8, ye & 0xff);
 
 	/* memory write */
diff --git a/drivers/staging/fbtft/fb_ili9486.c b/drivers/staging/fbtft/fb_ili9486.c
index 95b8999..dd4ddca 100644
--- a/drivers/staging/fbtft/fb_ili9486.c
+++ b/drivers/staging/fbtft/fb_ili9486.c
@@ -44,13 +44,13 @@ static int default_init_sequence[] = {
 	-1, 0xC5, 0x00, 0x00, 0x00, 0x00,
 	/* PGAMCTRL(Positive Gamma Control) */
 	-1, 0xE0, 0x0F, 0x1F, 0x1C, 0x0C, 0x0F, 0x08, 0x48, 0x98,
-	          0x37, 0x0A, 0x13, 0x04, 0x11, 0x0D, 0x00,
+		  0x37, 0x0A, 0x13, 0x04, 0x11, 0x0D, 0x00,
 	/* NGAMCTRL(Negative Gamma Control) */
 	-1, 0xE1, 0x0F, 0x32, 0x2E, 0x0B, 0x0D, 0x05, 0x47, 0x75,
-	          0x37, 0x06, 0x10, 0x03, 0x24, 0x20, 0x00,
+		  0x37, 0x06, 0x10, 0x03, 0x24, 0x20, 0x00,
 	/* Digital Gamma Control 1 */
 	-1, 0xE2, 0x0F, 0x32, 0x2E, 0x0B, 0x0D, 0x05, 0x47, 0x75,
-	          0x37, 0x06, 0x10, 0x03, 0x24, 0x20, 0x00,
+		  0x37, 0x06, 0x10, 0x03, 0x24, 0x20, 0x00,
 	/* Sleep OUT */
 	-1, 0x11,
 	/* Display ON */
@@ -67,7 +67,7 @@ static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)
 	/* Column address */
 	write_reg(par, 0x2A, xs >> 8, xs & 0xFF, xe >> 8, xe & 0xFF);
 
-	/* Row adress */
+	/* Row address */
 	write_reg(par, 0x2B, ys >> 8, ys & 0xFF, ye >> 8, ye & 0xFF);
 
 	/* Memory write */
diff --git a/drivers/staging/fbtft/fb_pcd8544.c b/drivers/staging/fbtft/fb_pcd8544.c
index 8b9ebfb..15da0ec 100644
--- a/drivers/staging/fbtft/fb_pcd8544.c
+++ b/drivers/staging/fbtft/fb_pcd8544.c
@@ -34,7 +34,7 @@
 #define WIDTH          84
 #define HEIGHT         48
 #define TXBUFLEN       (84*6)
-#define DEFAULT_GAMMA  "40" /* gamma is used to control contrast in this driver */
+#define DEFAULT_GAMMA  "40" /* gamma controls the contrast in this driver */
 
 static unsigned tc;
 module_param(tc, uint, 0);
@@ -51,61 +51,73 @@ static int init_display(struct fbtft_par *par)
 
 	par->fbtftops.reset(par);
 
-	/* Function set */
-	write_reg(par, 0x21); /* 5:1  1
-	                         2:0  PD - Powerdown control: chip is active
-							 1:0  V  - Entry mode: horizontal addressing
-							 0:1  H  - Extended instruction set control: extended
-						  */
-
-	/* H=1 Temperature control */
-	write_reg(par, 0x04 | (tc & 0x3)); /*
-	                         2:1  1
-	                         1:x  TC1 - Temperature Coefficient: 0x10
-							 0:x  TC0
-						  */
-
-	/* H=1 Bias system */
-	write_reg(par, 0x10 | (bs & 0x7)); /*
-	                         4:1  1
-	                         3:0  0
-							 2:x  BS2 - Bias System
-							 1:x  BS1
-							 0:x  BS0
-	                      */
-
-	/* Function set */
-	write_reg(par, 0x22); /* 5:1  1
-	                         2:0  PD - Powerdown control: chip is active
-							 1:1  V  - Entry mode: vertical addressing
-							 0:0  H  - Extended instruction set control: basic
-						  */
-
-	/* H=0 Display control */
-	write_reg(par, 0x08 | 4); /*
-	                         3:1  1
-	                         2:1  D  - DE: 10=normal mode
-							 1:0  0
-							 0:0  E
-						  */
+	/* Function set
+	 *
+	 * 5:1  1
+	 * 2:0  PD - Powerdown control: chip is active
+	 * 1:0  V  - Entry mode: horizontal addressing
+	 * 0:1  H  - Extended instruction set control: extended
+	 */
+	write_reg(par, 0x21);
+
+	/* H=1 Temperature control
+	 *
+	 * 2:1  1
+	 * 1:x  TC1 - Temperature Coefficient: 0x10
+	 * 0:x  TC0
+	 */
+	write_reg(par, 0x04 | (tc & 0x3));
+
+	/* H=1 Bias system
+	 *
+	 * 4:1  1
+	 * 3:0  0
+	 * 2:x  BS2 - Bias System
+	 * 1:x  BS1
+	 * 0:x  BS0
+	 */
+	write_reg(par, 0x10 | (bs & 0x7));
+
+	/* Function set
+	 *
+	 * 5:1  1
+	 * 2:0  PD - Powerdown control: chip is active
+	 * 1:1  V  - Entry mode: vertical addressing
+	 * 0:0  H  - Extended instruction set control: basic
+	 */
+	write_reg(par, 0x22);
+
+	/* H=0 Display control
+	 *
+	 * 3:1  1
+	 * 2:1  D  - DE: 10=normal mode
+	 * 1:0  0
+	 * 0:0  E
+	 */
+	write_reg(par, 0x08 | 4);
 
 	return 0;
 }
 
 static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)
 {
-	fbtft_par_dbg(DEBUG_SET_ADDR_WIN, par, "%s(xs=%d, ys=%d, xe=%d, ye=%d)\n", __func__, xs, ys, xe, ye);
-
-	/* H=0 Set X address of RAM */
-	write_reg(par, 0x80); /* 7:1  1
-	                         6-0: X[6:0] - 0x00
-	                      */
-
-	/* H=0 Set Y address of RAM */
-	write_reg(par, 0x40); /* 7:0  0
-	                         6:1  1
-	                         2-0: Y[2:0] - 0x0
-	                      */
+	fbtft_par_dbg(DEBUG_SET_ADDR_WIN, par, "%s(xs=%d, ys=%d, xe=%d, ye=%d)\n",
+		      __func__, xs, ys, xe, ye);
+
+	/* H=0 Set X address of RAM
+	 *
+	 * 7:1  1
+	 * 6-0: X[6:0] - 0x00
+	 */
+	write_reg(par, 0x80);
+
+	/* H=0 Set Y address of RAM
+	 *
+	 * 7:0  0
+	 * 6:1  1
+	 * 2-0: Y[2:0] - 0x0
+	 */
+	write_reg(par, 0x40);
 }
 
 static int write_vmem(struct fbtft_par *par, size_t offset, size_t len)
@@ -120,9 +132,8 @@ static int write_vmem(struct fbtft_par *par, size_t offset, size_t len)
 	for (x = 0; x < 84; x++) {
 		for (y = 0; y < 6; y++) {
 			*buf = 0x00;
-			for (i = 0; i < 8; i++) {
+			for (i = 0; i < 8; i++)
 				*buf |= (vmem16[(y*8+i)*84+x] ? 1 : 0) << i;
-			}
 			buf++;
 		}
 	}
@@ -131,7 +142,8 @@ static int write_vmem(struct fbtft_par *par, size_t offset, size_t len)
 	gpio_set_value(par->gpio.dc, 1);
 	ret = par->fbtftops.write(par, par->txbuf.buf, 6*84);
 	if (ret < 0)
-		dev_err(par->info->device, "%s: write failed and returned: %d\n", __func__, ret);
+		dev_err(par->info->device, "write failed and returned: %d\n",
+			ret);
 
 	return ret;
 }
diff --git a/drivers/staging/fbtft/fb_ra8875.c b/drivers/staging/fbtft/fb_ra8875.c
index c323c06..2c4d4dc 100644
--- a/drivers/staging/fbtft/fb_ra8875.c
+++ b/drivers/staging/fbtft/fb_ra8875.c
@@ -11,7 +11,7 @@
 						  *****      *   *
   Date    : 10.06.2014                                      *   *
   Version : V1.13                                          *****
-  Revison : 5
+  Revision : 5
 
 *******************************************************************************
  * This program is free software; you can redistribute it and/or modify
@@ -79,112 +79,112 @@ static int init_display(struct fbtft_par *par)
 
 	if ((par->info->var.xres == 320) && (par->info->var.yres == 240)) {
 		/* PLL clock frequency */
-		write_reg(par, 0x88 , 0x0A);
-		write_reg(par, 0x89 , 0x02);
+		write_reg(par, 0x88, 0x0A);
+		write_reg(par, 0x89, 0x02);
 		mdelay(10);
 		/* color deep / MCU Interface */
-		write_reg(par, 0x10 , 0x0C);
+		write_reg(par, 0x10, 0x0C);
 		/* pixel clock period  */
-		write_reg(par, 0x04 , 0x03);
+		write_reg(par, 0x04, 0x03);
 		mdelay(1);
 		/* horizontal settings */
-		write_reg(par, 0x14 , 0x27);
-		write_reg(par, 0x15 , 0x00);
-		write_reg(par, 0x16 , 0x05);
-		write_reg(par, 0x17 , 0x04);
-		write_reg(par, 0x18 , 0x03);
+		write_reg(par, 0x14, 0x27);
+		write_reg(par, 0x15, 0x00);
+		write_reg(par, 0x16, 0x05);
+		write_reg(par, 0x17, 0x04);
+		write_reg(par, 0x18, 0x03);
 		/* vertical settings */
-		write_reg(par, 0x19 , 0xEF);
-		write_reg(par, 0x1A , 0x00);
-		write_reg(par, 0x1B , 0x05);
-		write_reg(par, 0x1C , 0x00);
-		write_reg(par, 0x1D , 0x0E);
-		write_reg(par, 0x1E , 0x00);
-		write_reg(par, 0x1F , 0x02);
+		write_reg(par, 0x19, 0xEF);
+		write_reg(par, 0x1A, 0x00);
+		write_reg(par, 0x1B, 0x05);
+		write_reg(par, 0x1C, 0x00);
+		write_reg(par, 0x1D, 0x0E);
+		write_reg(par, 0x1E, 0x00);
+		write_reg(par, 0x1F, 0x02);
 	} else if ((par->info->var.xres == 480) && (par->info->var.yres == 272)) {
 		/* PLL clock frequency  */
-		write_reg(par, 0x88 , 0x0A);
-		write_reg(par, 0x89 , 0x02);
+		write_reg(par, 0x88, 0x0A);
+		write_reg(par, 0x89, 0x02);
 		mdelay(10);
 		/* color deep / MCU Interface */
-		write_reg(par, 0x10 , 0x0C);
+		write_reg(par, 0x10, 0x0C);
 		/* pixel clock period  */
-		write_reg(par, 0x04 , 0x82);
+		write_reg(par, 0x04, 0x82);
 		mdelay(1);
 		/* horizontal settings */
-		write_reg(par, 0x14 , 0x3B);
-		write_reg(par, 0x15 , 0x00);
-		write_reg(par, 0x16 , 0x01);
-		write_reg(par, 0x17 , 0x00);
-		write_reg(par, 0x18 , 0x05);
+		write_reg(par, 0x14, 0x3B);
+		write_reg(par, 0x15, 0x00);
+		write_reg(par, 0x16, 0x01);
+		write_reg(par, 0x17, 0x00);
+		write_reg(par, 0x18, 0x05);
 		/* vertical settings */
-		write_reg(par, 0x19 , 0x0F);
-		write_reg(par, 0x1A , 0x01);
-		write_reg(par, 0x1B , 0x02);
-		write_reg(par, 0x1C , 0x00);
-		write_reg(par, 0x1D , 0x07);
-		write_reg(par, 0x1E , 0x00);
-		write_reg(par, 0x1F , 0x09);
+		write_reg(par, 0x19, 0x0F);
+		write_reg(par, 0x1A, 0x01);
+		write_reg(par, 0x1B, 0x02);
+		write_reg(par, 0x1C, 0x00);
+		write_reg(par, 0x1D, 0x07);
+		write_reg(par, 0x1E, 0x00);
+		write_reg(par, 0x1F, 0x09);
 	} else if ((par->info->var.xres == 640) && (par->info->var.yres == 480)) {
 		/* PLL clock frequency */
-		write_reg(par, 0x88 , 0x0B);
-		write_reg(par, 0x89 , 0x02);
+		write_reg(par, 0x88, 0x0B);
+		write_reg(par, 0x89, 0x02);
 		mdelay(10);
 		/* color deep / MCU Interface */
-		write_reg(par, 0x10 , 0x0C);
+		write_reg(par, 0x10, 0x0C);
 		/* pixel clock period */
-		write_reg(par, 0x04 , 0x01);
+		write_reg(par, 0x04, 0x01);
 		mdelay(1);
 		/* horizontal settings */
-		write_reg(par, 0x14 , 0x4F);
-		write_reg(par, 0x15 , 0x05);
-		write_reg(par, 0x16 , 0x0F);
-		write_reg(par, 0x17 , 0x01);
-		write_reg(par, 0x18 , 0x00);
+		write_reg(par, 0x14, 0x4F);
+		write_reg(par, 0x15, 0x05);
+		write_reg(par, 0x16, 0x0F);
+		write_reg(par, 0x17, 0x01);
+		write_reg(par, 0x18, 0x00);
 		/* vertical settings */
-		write_reg(par, 0x19 , 0xDF);
-		write_reg(par, 0x1A , 0x01);
-		write_reg(par, 0x1B , 0x0A);
-		write_reg(par, 0x1C , 0x00);
-		write_reg(par, 0x1D , 0x0E);
-		write_reg(par, 0x1E , 0x00);
-		write_reg(par, 0x1F , 0x01);
+		write_reg(par, 0x19, 0xDF);
+		write_reg(par, 0x1A, 0x01);
+		write_reg(par, 0x1B, 0x0A);
+		write_reg(par, 0x1C, 0x00);
+		write_reg(par, 0x1D, 0x0E);
+		write_reg(par, 0x1E, 0x00);
+		write_reg(par, 0x1F, 0x01);
 	} else if ((par->info->var.xres == 800) && (par->info->var.yres == 480)) {
 		/* PLL clock frequency */
-		write_reg(par, 0x88 , 0x0B);
-		write_reg(par, 0x89 , 0x02);
+		write_reg(par, 0x88, 0x0B);
+		write_reg(par, 0x89, 0x02);
 		mdelay(10);
 		/* color deep / MCU Interface */
-		write_reg(par, 0x10 , 0x0C);
+		write_reg(par, 0x10, 0x0C);
 		/* pixel clock period */
-		write_reg(par, 0x04 , 0x81);
+		write_reg(par, 0x04, 0x81);
 		mdelay(1);
 		/* horizontal settings */
-		write_reg(par, 0x14 , 0x63);
-		write_reg(par, 0x15 , 0x03);
-		write_reg(par, 0x16 , 0x03);
-		write_reg(par, 0x17 , 0x02);
-		write_reg(par, 0x18 , 0x00);
+		write_reg(par, 0x14, 0x63);
+		write_reg(par, 0x15, 0x03);
+		write_reg(par, 0x16, 0x03);
+		write_reg(par, 0x17, 0x02);
+		write_reg(par, 0x18, 0x00);
 		/* vertical settings */
-		write_reg(par, 0x19 , 0xDF);
-		write_reg(par, 0x1A , 0x01);
-		write_reg(par, 0x1B , 0x14);
-		write_reg(par, 0x1C , 0x00);
-		write_reg(par, 0x1D , 0x06);
-		write_reg(par, 0x1E , 0x00);
-		write_reg(par, 0x1F , 0x01);
+		write_reg(par, 0x19, 0xDF);
+		write_reg(par, 0x1A, 0x01);
+		write_reg(par, 0x1B, 0x14);
+		write_reg(par, 0x1C, 0x00);
+		write_reg(par, 0x1D, 0x06);
+		write_reg(par, 0x1E, 0x00);
+		write_reg(par, 0x1F, 0x01);
 	} else {
 		dev_err(par->info->device, "display size is not supported!!");
 		return -1;
 	}
 
 	/* PWM clock */
-	write_reg(par, 0x8a , 0x81);
-	write_reg(par, 0x8b , 0xFF);
+	write_reg(par, 0x8a, 0x81);
+	write_reg(par, 0x8b, 0xFF);
 	mdelay(10);
 
 	/* Display ON */
-	write_reg(par, 0x01 , 0x80);
+	write_reg(par, 0x01, 0x80);
 	mdelay(10);
 
 	return 0;
@@ -196,14 +196,14 @@ static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)
 		"%s(xs=%d, ys=%d, xe=%d, ye=%d)\n", __func__, xs, ys, xe, ye);
 
 	/* Set_Active_Window */
-	write_reg(par, 0x30 , xs & 0x00FF);
-	write_reg(par, 0x31 , (xs & 0xFF00) >> 8);
-	write_reg(par, 0x32 , ys & 0x00FF);
-	write_reg(par, 0x33 , (ys & 0xFF00) >> 8);
-	write_reg(par, 0x34 , (xs+xe) & 0x00FF);
-	write_reg(par, 0x35 , ((xs+xe) & 0xFF00) >> 8);
-	write_reg(par, 0x36 , (ys+ye) & 0x00FF);
-	write_reg(par, 0x37 , ((ys+ye) & 0xFF00) >> 8);
+	write_reg(par, 0x30, xs & 0x00FF);
+	write_reg(par, 0x31, (xs & 0xFF00) >> 8);
+	write_reg(par, 0x32, ys & 0x00FF);
+	write_reg(par, 0x33, (ys & 0xFF00) >> 8);
+	write_reg(par, 0x34, (xs+xe) & 0x00FF);
+	write_reg(par, 0x35, ((xs+xe) & 0xFF00) >> 8);
+	write_reg(par, 0x36, (ys+ye) & 0x00FF);
+	write_reg(par, 0x37, ((ys+ye) & 0xFF00) >> 8);
 
 	/* Set_Memory_Write_Cursor */
 	write_reg(par, 0x46,  xs & 0xff);
@@ -238,8 +238,8 @@ static void write_reg8_bus8(struct fbtft_par *par, int len, ...)
 	ret = par->fbtftops.write(par, par->buf, 2);
 	if (ret < 0) {
 		va_end(args);
-		dev_err(par->info->device, "%s: write() failed and returned %dn",
-			__func__, ret);
+		dev_err(par->info->device, "write() failed and returned %dn",
+			ret);
 		return;
 	}
 	len--;
@@ -256,8 +256,8 @@ static void write_reg8_bus8(struct fbtft_par *par, int len, ...)
 		ret = par->fbtftops.write(par, par->buf, len + 1);
 		if (ret < 0) {
 			va_end(args);
-			dev_err(par->info->device, "%s: write() failed and returned %dn",
-				__func__, ret);
+			dev_err(par->info->device,
+				"write() failed and returned %dn", ret);
 			return;
 		}
 	}
diff --git a/drivers/staging/fbtft/fb_s6d02a1.c b/drivers/staging/fbtft/fb_s6d02a1.c
index e412a42..f330252 100644
--- a/drivers/staging/fbtft/fb_s6d02a1.c
+++ b/drivers/staging/fbtft/fb_s6d02a1.c
@@ -108,7 +108,7 @@ static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)
 	/* Column address */
 	write_reg(par, 0x2A, xs >> 8, xs & 0xFF, xe >> 8, xe & 0xFF);
 
-	/* Row adress */
+	/* Row address */
 	write_reg(par, 0x2B, ys >> 8, ys & 0xFF, ye >> 8, ye & 0xFF);
 
 	/* Memory write */
@@ -136,7 +136,7 @@ static int set_var(struct fbtft_par *par)
 		write_reg(par, 0x36, MY | MV | (par->bgr << 3));
 		break;
 	case 180:
-		write_reg(par, 0x36, (par->bgr << 3));
+		write_reg(par, 0x36, par->bgr << 3);
 		break;
 	case 90:
 		write_reg(par, 0x36, MX | MV | (par->bgr << 3));
diff --git a/drivers/staging/fbtft/fb_s6d1121.c b/drivers/staging/fbtft/fb_s6d1121.c
index 1ef8c1a..2e1b72a 100644
--- a/drivers/staging/fbtft/fb_s6d1121.c
+++ b/drivers/staging/fbtft/fb_s6d1121.c
@@ -143,12 +143,10 @@ static int set_var(struct fbtft_par *par)
 static int set_gamma(struct fbtft_par *par, unsigned long *curves)
 {
 	unsigned long mask[] = {
-		0b111111, 0b111111, 0b111111, 0b111111, 0b111111, 0b111111, 
-		0b111111, 0b111111, 0b111111, 0b111111, 0b111111, 0b111111,
-		0b11111, 0b11111,
-		0b111111, 0b111111, 0b111111, 0b111111, 0b111111, 0b111111,
-		0b111111, 0b111111, 0b111111, 0b111111, 0b111111, 0b111111,
-		0b11111, 0b11111 };
+		0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f,
+		0x3f, 0x3f, 0x1f, 0x1f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f,
+		0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x1f, 0x1f,
+	};
 	int i, j;
 
 	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
diff --git a/drivers/staging/fbtft/fb_ssd1289.c b/drivers/staging/fbtft/fb_ssd1289.c
index ef46fbc..17a77e0 100644
--- a/drivers/staging/fbtft/fb_ssd1289.c
+++ b/drivers/staging/fbtft/fb_ssd1289.c
@@ -126,16 +126,16 @@ static int set_var(struct fbtft_par *par)
 
 	switch (par->info->var.rotate) {
 	case 0:
-		write_reg(par, 0x11, reg11 | 0b110000);
+		write_reg(par, 0x11, reg11 | 0x30);
 		break;
 	case 270:
-		write_reg(par, 0x11, reg11 | 0b101000);
+		write_reg(par, 0x11, reg11 | 0x28);
 		break;
 	case 180:
-		write_reg(par, 0x11, reg11 | 0b000000);
+		write_reg(par, 0x11, reg11 | 0x00);
 		break;
 	case 90:
-		write_reg(par, 0x11, reg11 | 0b011000);
+		write_reg(par, 0x11, reg11 | 0x18);
 		break;
 	}
 
@@ -151,10 +151,9 @@ static int set_var(struct fbtft_par *par)
 static int set_gamma(struct fbtft_par *par, unsigned long *curves)
 {
 	unsigned long mask[] = {
-		0b11111, 0b11111, 0b111, 0b111, 0b111,
-		0b111, 0b111, 0b111, 0b111, 0b111,
-		0b11111, 0b11111, 0b111, 0b111, 0b111,
-		0b111, 0b111, 0b111, 0b111, 0b111 };
+		0x1f, 0x1f, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07,
+		0x1f, 0x1f, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07,
+	};
 	int i, j;
 
 	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
diff --git a/drivers/staging/fbtft/fb_ssd1306.c b/drivers/staging/fbtft/fb_ssd1306.c
index 5ea195b..15ee44d 100644
--- a/drivers/staging/fbtft/fb_ssd1306.c
+++ b/drivers/staging/fbtft/fb_ssd1306.c
@@ -193,8 +193,8 @@ static int write_vmem(struct fbtft_par *par, size_t offset, size_t len)
 	ret = par->fbtftops.write(par, par->txbuf.buf,
 				par->info->var.xres*par->info->var.yres/8);
 	if (ret < 0)
-		dev_err(par->info->device,
-			"%s: write failed and returned: %d\n", __func__, ret);
+		dev_err(par->info->device, "write failed and returned: %d\n",
+			ret);
 
 	return ret;
 }
diff --git a/drivers/staging/fbtft/fb_ssd1331.c b/drivers/staging/fbtft/fb_ssd1331.c
index da7464f..5bb7410 100644
--- a/drivers/staging/fbtft/fb_ssd1331.c
+++ b/drivers/staging/fbtft/fb_ssd1331.c
@@ -29,24 +29,24 @@ static int init_display(struct fbtft_par *par)
 
 	write_reg(par, 0xae); /* Display Off */
 	write_reg(par, 0xa0, 0x70 | (par->bgr << 2)); /* Set Colour Depth */
-	write_reg(par, 0x72); // RGB colour
+	write_reg(par, 0x72); /* RGB colour */
 	write_reg(par, 0xa1, 0x00); /* Set Display Start Line */
 	write_reg(par, 0xa2, 0x00); /* Set Display Offset */
 	write_reg(par, 0xa4); /* NORMALDISPLAY */
-	write_reg(par, 0xa8, 0x3f); // Set multiplex
-	write_reg(par, 0xad, 0x8e); // Set master
-	// write_reg(par, 0xb0, 0x0b); // Set power mode
-	write_reg(par, 0xb1, 0x31); // Precharge
-	write_reg(par, 0xb3, 0xf0); // Clock div
-	write_reg(par, 0x8a, 0x64); // Precharge A
-	write_reg(par, 0x8b, 0x78); // Precharge B
-	write_reg(par, 0x8c, 0x64); // Precharge C
-	write_reg(par, 0xbb, 0x3a); // Precharge level
-	write_reg(par, 0xbe, 0x3e); // vcomh
-	write_reg(par, 0x87, 0x06); // Master current
-	write_reg(par, 0x81, 0x91); // Contrast A
-	write_reg(par, 0x82, 0x50); // Contrast B
-	write_reg(par, 0x83, 0x7d); // Contrast C
+	write_reg(par, 0xa8, 0x3f); /* Set multiplex */
+	write_reg(par, 0xad, 0x8e); /* Set master */
+	/* write_reg(par, 0xb0, 0x0b);  Set power mode */
+	write_reg(par, 0xb1, 0x31); /* Precharge */
+	write_reg(par, 0xb3, 0xf0); /* Clock div */
+	write_reg(par, 0x8a, 0x64); /* Precharge A */
+	write_reg(par, 0x8b, 0x78); /* Precharge B */
+	write_reg(par, 0x8c, 0x64); /* Precharge C */
+	write_reg(par, 0xbb, 0x3a); /* Precharge level */
+	write_reg(par, 0xbe, 0x3e); /* vcomh */
+	write_reg(par, 0x87, 0x06); /* Master current */
+	write_reg(par, 0x81, 0x91); /* Contrast A */
+	write_reg(par, 0x82, 0x50); /* Contrast B */
+	write_reg(par, 0x83, 0x7d); /* Contrast C */
 	write_reg(par, 0xaf); /* Set Sleep Mode Display On */
 
 	return 0;
@@ -69,9 +69,8 @@ static void write_reg8_bus8(struct fbtft_par *par, int len, ...)
 
 	if (unlikely(par->debug & DEBUG_WRITE_REGISTER)) {
 		va_start(args, len);
-		for (i = 0; i < len; i++) {
+		for (i = 0; i < len; i++)
 			buf[i] = (u8)va_arg(args, unsigned int);
-		}
 		va_end(args);
 		fbtft_par_dbg_hex(DEBUG_WRITE_REGISTER, par, par->info->device, u8, buf, len, "%s: ", __func__);
 	}
@@ -84,20 +83,21 @@ static void write_reg8_bus8(struct fbtft_par *par, int len, ...)
 	ret = par->fbtftops.write(par, par->buf, sizeof(u8));
 	if (ret < 0) {
 		va_end(args);
-		dev_err(par->info->device, "%s: write() failed and returned %d\n", __func__, ret);
+		dev_err(par->info->device,
+			"write() failed and returned %d\n", ret);
 		return;
 	}
 	len--;
 
 	if (len) {
 		i = len;
-		while (i--) {
+		while (i--)
 			*buf++ = (u8)va_arg(args, unsigned int);
-		}
 		ret = par->fbtftops.write(par, par->buf, len * (sizeof(u8)));
 		if (ret < 0) {
 			va_end(args);
-			dev_err(par->info->device, "%s: write() failed and returned %d\n", __func__, ret);
+			dev_err(par->info->device,
+				"write() failed and returned %d\n", ret);
 			return;
 		}
 	}
diff --git a/drivers/staging/fbtft/fb_ssd1351.c b/drivers/staging/fbtft/fb_ssd1351.c
index 062d986..9bcd7a0 100644
--- a/drivers/staging/fbtft/fb_ssd1351.c
+++ b/drivers/staging/fbtft/fb_ssd1351.c
@@ -72,6 +72,7 @@ static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)
 static int set_var(struct fbtft_par *par)
 {
 	unsigned remap;
+
 	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
 
 	if (par->fbtftops.init_display != init_display) {
@@ -86,16 +87,16 @@ static int set_var(struct fbtft_par *par)
 
 	switch (par->info->var.rotate) {
 	case 0:
-		write_reg(par, 0xA0, remap | 0b00 | 1<<4);
+		write_reg(par, 0xA0, remap | 0x00 | 1<<4);
 		break;
 	case 270:
-		write_reg(par, 0xA0, remap | 0b11 | 1<<4);
+		write_reg(par, 0xA0, remap | 0x03 | 1<<4);
 		break;
 	case 180:
-		write_reg(par, 0xA0, remap | 0b10);
+		write_reg(par, 0xA0, remap | 0x02);
 		break;
 	case 90:
-		write_reg(par, 0xA0, remap | 0b01);
+		write_reg(par, 0xA0, remap | 0x01);
 		break;
 	}
 
@@ -217,12 +218,8 @@ static void register_onboard_backlight(struct fbtft_par *par)
 
 	bl_ops = devm_kzalloc(par->info->device, sizeof(struct backlight_ops),
 				GFP_KERNEL);
-	if (!bl_ops) {
-		dev_err(par->info->device,
-			"%s: could not allocate memory for backlight operations.\n",
-			__func__);
+	if (!bl_ops)
 		return;
-	}
 
 	bl_ops->update_status = update_onboard_backlight;
 	bl_props.type = BACKLIGHT_RAW;
diff --git a/drivers/staging/fbtft/fb_st7735r.c b/drivers/staging/fbtft/fb_st7735r.c
index b63aa38..9d87430 100644
--- a/drivers/staging/fbtft/fb_st7735r.c
+++ b/drivers/staging/fbtft/fb_st7735r.c
@@ -31,20 +31,20 @@
 
 static int default_init_sequence[] = {
 	/* SWRESET - Software reset */
-	-1, 0x01,                                
+	-1, 0x01,
 	-2, 150,                               /* delay */
 
 	/* SLPOUT - Sleep out & booster on */
-	-1, 0x11,                          
+	-1, 0x11,
 	-2, 500,                               /* delay */
 
 	/* FRMCTR1 - frame rate control: normal mode
 	     frame rate = fosc / (1 x 2 + 40) * (LINE + 2C + 2D) */
-	-1, 0xB1, 0x01, 0x2C, 0x2D, 
+	-1, 0xB1, 0x01, 0x2C, 0x2D,
 
 	/* FRMCTR2 - frame rate control: idle mode
 	     frame rate = fosc / (1 x 2 + 40) * (LINE + 2C + 2D) */
-	-1, 0xB2, 0x01, 0x2C, 0x2D, 
+	-1, 0xB2, 0x01, 0x2C, 0x2D,
 
 	/* FRMCTR3 - frame rate control - partial mode
 	     dot inversion mode, line inversion mode */
@@ -68,7 +68,7 @@ static int default_init_sequence[] = {
 
 	/* PWCTR4 - Power Control
 	     BCLK/2, Opamp current small & Medium low */
-	-1, 0xC3,0x8A,0x2A,
+	-1, 0xC3, 0x8A, 0x2A,
 
 	/* PWCTR5 - Power Control */
 	-1, 0xC4, 0x8A, 0xEE,
@@ -91,7 +91,7 @@ static int default_init_sequence[] = {
 	-2, 10,                               /* delay */
 
 	/* end marker */
-	-3                                  
+	-3
 };
 
 static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)
@@ -102,7 +102,7 @@ static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)
 	/* Column address */
 	write_reg(par, 0x2A, xs >> 8, xs & 0xFF, xe >> 8, xe & 0xFF);
 
-	/* Row adress */
+	/* Row address */
 	write_reg(par, 0x2B, ys >> 8, ys & 0xFF, ye >> 8, ye & 0xFF);
 
 	/* Memory write */
@@ -130,7 +130,7 @@ static int set_var(struct fbtft_par *par)
 		write_reg(par, 0x36, MY | MV | (par->bgr << 3));
 		break;
 	case 180:
-		write_reg(par, 0x36, (par->bgr << 3));
+		write_reg(par, 0x36, par->bgr << 3);
 		break;
 	case 90:
 		write_reg(par, 0x36, MX | MV | (par->bgr << 3));
@@ -148,21 +148,21 @@ static int set_var(struct fbtft_par *par)
 #define CURVE(num, idx)  curves[num*par->gamma.num_values + idx]
 static int set_gamma(struct fbtft_par *par, unsigned long *curves)
 {
-	int i,j;
+	int i, j;
 
 	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
 
 	/* apply mask */
 	for (i = 0; i < par->gamma.num_curves; i++)
 		for (j = 0; j < par->gamma.num_values; j++)
-			CURVE(i,j) &= 0b111111;
+			CURVE(i, j) &= 0x3f;
 
 	for (i = 0; i < par->gamma.num_curves; i++)
 		write_reg(par, 0xE0 + i,
 			CURVE(i, 0), CURVE(i, 1), CURVE(i, 2), CURVE(i, 3),
 			CURVE(i, 4), CURVE(i, 5), CURVE(i, 6), CURVE(i, 7),
 			CURVE(i, 8), CURVE(i, 9), CURVE(i, 10), CURVE(i, 11),
-			CURVE(i, 12), CURVE(i, 13), CURVE(i, 14), CURVE(i,15));
+			CURVE(i, 12), CURVE(i, 13), CURVE(i, 14), CURVE(i, 15));
 
 	return 0;
 }
diff --git a/drivers/staging/fbtft/fb_tinylcd.c b/drivers/staging/fbtft/fb_tinylcd.c
index ca98bfb..c0b1a33 100644
--- a/drivers/staging/fbtft/fb_tinylcd.c
+++ b/drivers/staging/fbtft/fb_tinylcd.c
@@ -70,7 +70,7 @@ static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)
 	/* Column address */
 	write_reg(par, 0x2A, xs >> 8, xs & 0xFF, xe >> 8, xe & 0xFF);
 
-	/* Row adress */
+	/* Row address */
 	write_reg(par, 0x2B, ys >> 8, ys & 0xFF, ye >> 8, ye & 0xFF);
 
 	/* Memory write */
diff --git a/drivers/staging/fbtft/fb_tls8204.c b/drivers/staging/fbtft/fb_tls8204.c
index 8738c7a..fcd38bf 100644
--- a/drivers/staging/fbtft/fb_tls8204.c
+++ b/drivers/staging/fbtft/fb_tls8204.c
@@ -127,7 +127,7 @@ static int write_vmem(struct fbtft_par *par, size_t offset, size_t len)
 		ret = par->fbtftops.write(par, par->txbuf.buf, WIDTH);
 		if (ret < 0) {
 			dev_err(par->info->device,
-				"%s: write failed and returned: %d\n", __func__, ret);
+				"write failed and returned: %d\n", ret);
 			break;
 		}
 	}
diff --git a/drivers/staging/fbtft/fb_uc1701.c b/drivers/staging/fbtft/fb_uc1701.c
index d70ac52..26d669b 100644
--- a/drivers/staging/fbtft/fb_uc1701.c
+++ b/drivers/staging/fbtft/fb_uc1701.c
@@ -183,7 +183,8 @@ static int write_vmem(struct fbtft_par *par, size_t offset, size_t len)
 	}
 
 	if (ret < 0)
-		dev_err(par->info->device, "%s: write failed and returned: %d\n", __func__, ret);
+		dev_err(par->info->device, "write failed and returned: %d\n",
+			ret);
 
 	return ret;
 }
diff --git a/drivers/staging/fbtft/fb_upd161704.c b/drivers/staging/fbtft/fb_upd161704.c
index fff57b3..176c210 100644
--- a/drivers/staging/fbtft/fb_upd161704.c
+++ b/drivers/staging/fbtft/fb_upd161704.c
@@ -47,84 +47,84 @@ static int init_display(struct fbtft_par *par)
 	/* Initialization sequence from Lib_UTFT */
 
 	/* register reset */
-	write_reg(par, 0x0003,0x0001);	/* Soft reset */
+	write_reg(par, 0x0003, 0x0001);	/* Soft reset */
 
 	/* oscillator start */
-	write_reg(par, 0x003A,0x0001);	/*Oscillator 0: stop, 1: operation */
+	write_reg(par, 0x003A, 0x0001);	/*Oscillator 0: stop, 1: operation */
 	udelay(100);
 
 	/* y-setting */
-	write_reg(par, 0x0024,0x007B);	/* amplitude setting */
+	write_reg(par, 0x0024, 0x007B);	/* amplitude setting */
 	udelay(10);
-	write_reg(par, 0x0025,0x003B);	/* amplitude setting */
-	write_reg(par, 0x0026,0x0034);	/* amplitude setting */
+	write_reg(par, 0x0025, 0x003B);	/* amplitude setting */
+	write_reg(par, 0x0026, 0x0034);	/* amplitude setting */
 	udelay(10);
-	write_reg(par, 0x0027,0x0004);	/* amplitude setting */
-	write_reg(par, 0x0052,0x0025);	/* circuit setting 1 */
+	write_reg(par, 0x0027, 0x0004);	/* amplitude setting */
+	write_reg(par, 0x0052, 0x0025);	/* circuit setting 1 */
 	udelay(10);
-	write_reg(par, 0x0053,0x0033);	/* circuit setting 2 */
-	write_reg(par, 0x0061,0x001C);	/* adjustment V10 positive polarity */
+	write_reg(par, 0x0053, 0x0033);	/* circuit setting 2 */
+	write_reg(par, 0x0061, 0x001C);	/* adjustment V10 positive polarity */
 	udelay(10);
-	write_reg(par, 0x0062,0x002C);	/* adjustment V9 negative polarity */
-	write_reg(par, 0x0063,0x0022);	/* adjustment V34 positive polarity */
+	write_reg(par, 0x0062, 0x002C);	/* adjustment V9 negative polarity */
+	write_reg(par, 0x0063, 0x0022);	/* adjustment V34 positive polarity */
 	udelay(10);
-	write_reg(par, 0x0064,0x0027);	/* adjustment V31 negative polarity */
+	write_reg(par, 0x0064, 0x0027);	/* adjustment V31 negative polarity */
 	udelay(10);
-	write_reg(par, 0x0065,0x0014);	/* adjustment V61 negative polarity */
+	write_reg(par, 0x0065, 0x0014);	/* adjustment V61 negative polarity */
 	udelay(10);
-	write_reg(par, 0x0066,0x0010);	/* adjustment V61 negative polarity */
-	
+	write_reg(par, 0x0066, 0x0010);	/* adjustment V61 negative polarity */
+
 	/* Basical clock for 1 line (BASECOUNT[7:0]) number specified */
-	write_reg(par, 0x002E,0x002D);
-	
+	write_reg(par, 0x002E, 0x002D);
+
 	/* Power supply setting */
-	write_reg(par, 0x0019,0x0000);	/* DC/DC output setting */
+	write_reg(par, 0x0019, 0x0000);	/* DC/DC output setting */
 	udelay(200);
-	write_reg(par, 0x001A,0x1000);	/* DC/DC frequency setting */
-	write_reg(par, 0x001B,0x0023);	/* DC/DC rising setting */
-	write_reg(par, 0x001C,0x0C01);	/* Regulator voltage setting */
-	write_reg(par, 0x001D,0x0000);	/* Regulator current setting */
-	write_reg(par, 0x001E,0x0009);	/* VCOM output setting */
-	write_reg(par, 0x001F,0x0035);	/* VCOM amplitude setting */
-	write_reg(par, 0x0020,0x0015);	/* VCOMM cencter setting */
-	write_reg(par, 0x0018,0x1E7B);	/* DC/DC operation setting */
+	write_reg(par, 0x001A, 0x1000);	/* DC/DC frequency setting */
+	write_reg(par, 0x001B, 0x0023);	/* DC/DC rising setting */
+	write_reg(par, 0x001C, 0x0C01);	/* Regulator voltage setting */
+	write_reg(par, 0x001D, 0x0000);	/* Regulator current setting */
+	write_reg(par, 0x001E, 0x0009);	/* VCOM output setting */
+	write_reg(par, 0x001F, 0x0035);	/* VCOM amplitude setting */
+	write_reg(par, 0x0020, 0x0015);	/* VCOMM cencter setting */
+	write_reg(par, 0x0018, 0x1E7B);	/* DC/DC operation setting */
 
 	/* windows setting */
-	write_reg(par, 0x0008,0x0000);	/* Minimum X address */
-	write_reg(par, 0x0009,0x00EF);	/* Maximum X address */
-	write_reg(par, 0x000a,0x0000);	/* Minimum Y address */
-	write_reg(par, 0x000b,0x013F);	/* Maximum Y address */
+	write_reg(par, 0x0008, 0x0000);	/* Minimum X address */
+	write_reg(par, 0x0009, 0x00EF);	/* Maximum X address */
+	write_reg(par, 0x000a, 0x0000);	/* Minimum Y address */
+	write_reg(par, 0x000b, 0x013F);	/* Maximum Y address */
 
 	/* LCD display area setting */
-	write_reg(par, 0x0029,0x0000);	/* [LCDSIZE]  X MIN. size set */
-	write_reg(par, 0x002A,0x0000);	/* [LCDSIZE]  Y MIN. size set */
-	write_reg(par, 0x002B,0x00EF);	/* [LCDSIZE]  X MAX. size set */
-	write_reg(par, 0x002C,0x013F);	/* [LCDSIZE]  Y MAX. size set */
+	write_reg(par, 0x0029, 0x0000);	/* [LCDSIZE]  X MIN. size set */
+	write_reg(par, 0x002A, 0x0000);	/* [LCDSIZE]  Y MIN. size set */
+	write_reg(par, 0x002B, 0x00EF);	/* [LCDSIZE]  X MAX. size set */
+	write_reg(par, 0x002C, 0x013F);	/* [LCDSIZE]  Y MAX. size set */
 
 	/* Gate scan setting */
-	write_reg(par, 0x0032,0x0002);
-	
+	write_reg(par, 0x0032, 0x0002);
+
 	/* n line inversion line number */
-	write_reg(par, 0x0033,0x0000);
+	write_reg(par, 0x0033, 0x0000);
 
 	/* Line inversion/frame inversion/interlace setting */
-	write_reg(par, 0x0037,0x0000);
-	
+	write_reg(par, 0x0037, 0x0000);
+
 	/* Gate scan operation setting register */
-	write_reg(par, 0x003B,0x0001);
-	
+	write_reg(par, 0x003B, 0x0001);
+
 	/* Color mode */
 	/*GS = 0: 260-k color (64 gray scale), GS = 1: 8 color (2 gray scale) */
-	write_reg(par, 0x0004,0x0000);
+	write_reg(par, 0x0004, 0x0000);
 
 	/* RAM control register */
-	write_reg(par, 0x0005,0x0000);	/*Window access 00:Normal, 10:Window */
+	write_reg(par, 0x0005, 0x0000);	/*Window access 00:Normal, 10:Window */
 
 	/* Display setting register 2 */
-	write_reg(par, 0x0001,0x0000);
+	write_reg(par, 0x0001, 0x0000);
 
 	/* display setting */
-	write_reg(par, 0x0000,0x0000);	/* display on */
+	write_reg(par, 0x0000, 0x0000);	/* display on */
 
 	return 0;
 }
diff --git a/drivers/staging/fbtft/fb_watterott.c b/drivers/staging/fbtft/fb_watterott.c
index 975b579..88fb2c0 100644
--- a/drivers/staging/fbtft/fb_watterott.c
+++ b/drivers/staging/fbtft/fb_watterott.c
@@ -65,7 +65,7 @@ static void write_reg8_bus8(struct fbtft_par *par, int len, ...)
 	ret = par->fbtftops.write(par, par->buf, len);
 	if (ret < 0) {
 		dev_err(par->info->device,
-			"%s: write() failed and returned %d\n", __func__, ret);
+			"write() failed and returned %d\n", ret);
 		return;
 	}
 }
diff --git a/drivers/staging/fbtft/fbtft-bus.c b/drivers/staging/fbtft/fbtft-bus.c
index b3cddb0..52af9cb 100644
--- a/drivers/staging/fbtft/fbtft-bus.c
+++ b/drivers/staging/fbtft/fbtft-bus.c
@@ -111,7 +111,7 @@ void fbtft_write_reg8_bus9(struct fbtft_par *par, int len, ...)
 	ret = par->fbtftops.write(par, par->buf, (len + pad) * sizeof(u16));
 	if (ret < 0) {
 		dev_err(par->info->device,
-			"%s: write() failed and returned %d\n", __func__, ret);
+			"write() failed and returned %d\n", ret);
 		return;
 	}
 }
diff --git a/drivers/staging/fbtft/fbtft-core.c b/drivers/staging/fbtft/fbtft-core.c
index 37dcf7e..53b748b 100644
--- a/drivers/staging/fbtft/fbtft-core.c
+++ b/drivers/staging/fbtft/fbtft-core.c
@@ -41,15 +41,10 @@
 #include <linux/of_gpio.h>
 
 #include "fbtft.h"
-
-extern void fbtft_sysfs_init(struct fbtft_par *par);
-extern void fbtft_sysfs_exit(struct fbtft_par *par);
-extern void fbtft_expand_debug_value(unsigned long *debug);
-extern int fbtft_gamma_parse_str(struct fbtft_par *par, unsigned long *curves,
-						const char *str, int size);
+#include "internal.h"
 
 static unsigned long debug;
-module_param(debug, ulong , 0);
+module_param(debug, ulong, 0);
 MODULE_PARM_DESC(debug, "override device debug level");
 
 static bool dma = true;
@@ -302,12 +297,8 @@ void fbtft_register_backlight(struct fbtft_par *par)
 
 	bl_ops = devm_kzalloc(par->info->device, sizeof(struct backlight_ops),
 				GFP_KERNEL);
-	if (!bl_ops) {
-		dev_err(par->info->device,
-			"%s: could not allocate memeory for backlight operations.\n",
-			__func__);
+	if (!bl_ops)
 		return;
-	}
 
 	bl_ops->get_brightness = fbtft_backlight_get_brightness;
 	bl_ops->update_status = fbtft_backlight_update_status;
@@ -347,7 +338,7 @@ static void fbtft_set_addr_win(struct fbtft_par *par, int xs, int ys, int xe,
 	write_reg(par, 0x2A,
 		(xs >> 8) & 0xFF, xs & 0xFF, (xe >> 8) & 0xFF, xe & 0xFF);
 
-	/* Row adress set */
+	/* Row address set */
 	write_reg(par, 0x2B,
 		(ys >> 8) & 0xFF, ys & 0xFF, (ye >> 8) & 0xFF, ye & 0xFF);
 
@@ -379,7 +370,7 @@ static void fbtft_update_display(struct fbtft_par *par, unsigned start_line,
 	int ret = 0;
 
 	if (unlikely(par->debug & (DEBUG_TIME_FIRST_UPDATE | DEBUG_TIME_EACH_UPDATE))) {
-		if ((par->debug & DEBUG_TIME_EACH_UPDATE) || \
+		if ((par->debug & DEBUG_TIME_EACH_UPDATE) ||
 				((par->debug & DEBUG_TIME_FIRST_UPDATE) && !par->first_update_done)) {
 			getnstimeofday(&ts_start);
 			timeit = true;
@@ -707,9 +698,8 @@ struct fb_info *fbtft_framebuffer_alloc(struct fbtft_display *display,
 
 	/* sanity check */
 	if (display->gamma_num * display->gamma_len > FBTFT_GAMMA_MAX_VALUES_TOTAL) {
-		dev_err(dev,
-			"%s: FBTFT_GAMMA_MAX_VALUES_TOTAL=%d is exceeded\n",
-			__func__, FBTFT_GAMMA_MAX_VALUES_TOTAL);
+		dev_err(dev, "FBTFT_GAMMA_MAX_VALUES_TOTAL=%d is exceeded\n",
+			FBTFT_GAMMA_MAX_VALUES_TOTAL);
 		return NULL;
 	}
 
@@ -1000,7 +990,7 @@ int fbtft_register_framebuffer(struct fb_info *fb_info)
 	fbtft_sysfs_init(par);
 
 	if (par->txbuf.buf)
-		sprintf(text1, ", %d KiB %sbuffer memory",
+		sprintf(text1, ", %zu KiB %sbuffer memory",
 			par->txbuf.len >> 10, par->txbuf.dma ? "DMA " : "");
 	if (spi)
 		sprintf(text2, ", spi%d.%d at %d MHz", spi->master->bus_num,
@@ -1046,7 +1036,6 @@ int fbtft_unregister_framebuffer(struct fb_info *fb_info)
 {
 	struct fbtft_par *par = fb_info->par;
 	struct spi_device *spi = par->spi;
-	int ret;
 
 	if (spi)
 		spi_set_drvdata(spi, NULL);
@@ -1055,8 +1044,7 @@ int fbtft_unregister_framebuffer(struct fb_info *fb_info)
 	if (par->fbtftops.unregister_backlight)
 		par->fbtftops.unregister_backlight(par);
 	fbtft_sysfs_exit(par);
-	ret = unregister_framebuffer(fb_info);
-	return ret;
+	return unregister_framebuffer(fb_info);
 }
 EXPORT_SYMBOL(fbtft_unregister_framebuffer);
 
@@ -1278,7 +1266,7 @@ static int fbtft_verify_gpios(struct fbtft_par *par)
 	fbtft_par_dbg(DEBUG_VERIFY_GPIOS, par, "%s()\n", __func__);
 
 	pdata = par->info->device->platform_data;
-	if (pdata->display.buswidth != 9 && par->startbyte == 0 && \
+	if (pdata->display.buswidth != 9 && par->startbyte == 0 &&
 							par->gpio.dc < 0) {
 		dev_err(par->info->device,
 			"Missing info about 'dc' gpio. Aborting.\n");
diff --git a/drivers/staging/fbtft/fbtft-io.c b/drivers/staging/fbtft/fbtft-io.c
index 32155a7..a6f091f 100644
--- a/drivers/staging/fbtft/fbtft-io.c
+++ b/drivers/staging/fbtft/fbtft-io.c
@@ -59,8 +59,7 @@ int fbtft_write_spi_emulate_9(struct fbtft_par *par, void *buf, size_t len)
 	}
 	if ((len % 8) != 0) {
 		dev_err(par->info->device,
-			"%s: error: len=%d must be divisible by 8\n",
-			__func__, len);
+			"error: len=%zu must be divisible by 8\n", len);
 		return -EINVAL;
 	}
 
@@ -106,8 +105,8 @@ int fbtft_read_spi(struct fbtft_par *par, void *buf, size_t len)
 	if (par->startbyte) {
 		if (len > 32) {
 			dev_err(par->info->device,
-				"%s: len=%d can't be larger than 32 when using 'startbyte'\n",
-				__func__, len);
+				"len=%zu can't be larger than 32 when using 'startbyte'\n",
+				len);
 			return -EINVAL;
 		}
 		txbuf[0] = par->startbyte | 0x3;
@@ -155,14 +154,14 @@ int fbtft_write_gpio8_wr(struct fbtft_par *par, void *buf, size_t len)
 			for (i = 0; i < 8; i++) {
 				if ((data & 1) != (prev_data & 1))
 					gpio_set_value(par->gpio.db[i],
-								(data & 1));
+								data & 1);
 				data >>= 1;
 				prev_data >>= 1;
 			}
 		}
 #else
 		for (i = 0; i < 8; i++) {
-			gpio_set_value(par->gpio.db[i], (data & 1));
+			gpio_set_value(par->gpio.db[i], data & 1);
 			data >>= 1;
 		}
 #endif
@@ -205,14 +204,14 @@ int fbtft_write_gpio16_wr(struct fbtft_par *par, void *buf, size_t len)
 			for (i = 0; i < 16; i++) {
 				if ((data & 1) != (prev_data & 1))
 					gpio_set_value(par->gpio.db[i],
-								(data & 1));
+								data & 1);
 				data >>= 1;
 				prev_data >>= 1;
 			}
 		}
 #else
 		for (i = 0; i < 16; i++) {
-			gpio_set_value(par->gpio.db[i], (data & 1));
+			gpio_set_value(par->gpio.db[i], data & 1);
 			data >>= 1;
 		}
 #endif
diff --git a/drivers/staging/fbtft/fbtft-sysfs.c b/drivers/staging/fbtft/fbtft-sysfs.c
index 45f8de3..c4cc452 100644
--- a/drivers/staging/fbtft/fbtft-sysfs.c
+++ b/drivers/staging/fbtft/fbtft-sysfs.c
@@ -1,5 +1,5 @@
 #include "fbtft.h"
-
+#include "internal.h"
 
 static int get_next_ulong(char **str_p, unsigned long *val, char *sep, int base)
 {
@@ -37,10 +37,9 @@ int fbtft_gamma_parse_str(struct fbtft_par *par, unsigned long *curves,
 
 	fbtft_par_dbg(DEBUG_SYSFS, par, "%s\n", str);
 
-	tmp = kmalloc(size+1, GFP_KERNEL);
+	tmp = kmemdup(str, size + 1, GFP_KERNEL);
 	if (!tmp)
 		return -ENOMEM;
-	memcpy(tmp, str, size+1);
 
 	/* replace optional separators */
 	str_p = tmp;
@@ -153,7 +152,7 @@ static struct device_attribute gamma_device_attrs[] = {
 
 void fbtft_expand_debug_value(unsigned long *debug)
 {
-	switch (*debug & 0b111) {
+	switch (*debug & 0x7) {
 	case 1:
 		*debug |= DEBUG_LEVEL_1;
 		break;
diff --git a/drivers/staging/fbtft/fbtft.h b/drivers/staging/fbtft/fbtft.h
index 0dbf3f9..9fd98cb 100644
--- a/drivers/staging/fbtft/fbtft.h
+++ b/drivers/staging/fbtft/fbtft.h
@@ -147,7 +147,7 @@ struct fbtft_display {
 /**
  * struct fbtft_platform_data - Passes display specific data to the driver
  * @display: Display properties
- * @gpios: Pointer to an array of piname to gpio mappings
+ * @gpios: Pointer to an array of pinname to gpio mappings
  * @rotate: Display rotation angle
  * @bgr: LCD Controller BGR bit
  * @fps: Frames per second (this will go away, use @fps in @fbtft_display)
@@ -200,7 +200,7 @@ struct fbtft_platform_data {
  * @gpio.cs: LCD Chip Select with parallel interface bus
  * @gpio.db[16]: Parallel databus
  * @gpio.led[16]: Led control signals
- * @gpio.aux[16]: Auxillary signals, not used by core
+ * @gpio.aux[16]: Auxiliary signals, not used by core
  * @init_sequence: Pointer to LCD initialization array
  * @gamma.lock: Mutex for Gamma curve locking
  * @gamma.curves: Pointer to Gamma curve array
@@ -259,9 +259,7 @@ struct fbtft_par {
 #define NUMARGS(...)  (sizeof((int[]){__VA_ARGS__})/sizeof(int))
 
 #define write_reg(par, ...)                                              \
-do {                                                                     \
-	par->fbtftops.write_register(par, NUMARGS(__VA_ARGS__), __VA_ARGS__); \
-} while (0)
+	par->fbtftops.write_register(par, NUMARGS(__VA_ARGS__), __VA_ARGS__)
 
 /* fbtft-core.c */
 extern void fbtft_dbg_hex(const struct device *dev,
@@ -326,8 +324,8 @@ static int fbtft_driver_remove_pdev(struct platform_device *pdev)          \
 }                                                                          \
 									   \
 static const struct of_device_id dt_ids[] = {                              \
-        { .compatible = _compatible },                                     \
-        {},                                                                \
+	{ .compatible = _compatible },                                     \
+	{},                                                                \
 };                                                                         \
 									   \
 MODULE_DEVICE_TABLE(of, dt_ids);                                           \
@@ -337,7 +335,7 @@ static struct spi_driver fbtft_driver_spi_driver = {                       \
 	.driver = {                                                        \
 		.name   = _name,                                           \
 		.owner  = THIS_MODULE,                                     \
-                .of_match_table = of_match_ptr(dt_ids),                    \
+		.of_match_table = of_match_ptr(dt_ids),                    \
 	},                                                                 \
 	.probe  = fbtft_driver_probe_spi,                                  \
 	.remove = fbtft_driver_remove_spi,                                 \
@@ -347,7 +345,7 @@ static struct platform_driver fbtft_driver_platform_driver = {             \
 	.driver = {                                                        \
 		.name   = _name,                                           \
 		.owner  = THIS_MODULE,                                     \
-                .of_match_table = of_match_ptr(dt_ids),                    \
+		.of_match_table = of_match_ptr(dt_ids),                    \
 	},                                                                 \
 	.probe  = fbtft_driver_probe_pdev,                                 \
 	.remove = fbtft_driver_remove_pdev,                                \
diff --git a/drivers/staging/fbtft/fbtft_device.c b/drivers/staging/fbtft/fbtft_device.c
index b9f4c30..df6cd77 100644
--- a/drivers/staging/fbtft/fbtft_device.c
+++ b/drivers/staging/fbtft/fbtft_device.c
@@ -29,8 +29,8 @@
 
 #define MAX_GPIOS 32
 
-struct spi_device *spi_device;
-struct platform_device *p_device;
+static struct spi_device *spi_device;
+static struct platform_device *p_device;
 
 static char *name;
 module_param(name, charp, 0);
@@ -109,7 +109,7 @@ module_param_array(init, int, &init_num, 0);
 MODULE_PARM_DESC(init, "Init sequence, used with the custom argument");
 
 static unsigned long debug;
-module_param(debug, ulong , 0);
+module_param(debug, ulong, 0);
 MODULE_PARM_DESC(debug,
 "level: 0-7 (the remaining 29 bits is for advanced usage)");
 
@@ -136,43 +136,69 @@ static void adafruit18_green_tab_set_addr_win(struct fbtft_par *par,
 		"03 1d 07 06 2E 2C 29 2D 2E 2E 37 3F 00 00 02 10"
 
 static int hy28b_init_sequence[] = {
-	-1,0x00e7,0x0010,-1,0x0000,0x0001,-1,0x0001,0x0100,-1,0x0002,0x0700,
-	-1,0x0003,0x1030,-1,0x0004,0x0000,-1,0x0008,0x0207,-1,0x0009,0x0000,
-	-1,0x000a,0x0000,-1,0x000c,0x0001,-1,0x000d,0x0000,-1,0x000f,0x0000,
-	-1,0x0010,0x0000,-1,0x0011,0x0007,-1,0x0012,0x0000,-1,0x0013,0x0000,
-	-2,50,-1,0x0010,0x1590,-1,0x0011,0x0227,-2,50,-1,0x0012,0x009c,-2,50,
-	-1,0x0013,0x1900,-1,0x0029,0x0023,-1,0x002b,0x000e,-2,50,
-	-1,0x0020,0x0000,-1,0x0021,0x0000,-2,50,-1,0x0050,0x0000,
-	-1,0x0051,0x00ef,-1,0x0052,0x0000,-1,0x0053,0x013f,-1,0x0060,0xa700,
-	-1,0x0061,0x0001,-1,0x006a,0x0000,-1,0x0080,0x0000,-1,0x0081,0x0000,
-	-1,0x0082,0x0000,-1,0x0083,0x0000,-1,0x0084,0x0000,-1,0x0085,0x0000,
-	-1,0x0090,0x0010,-1,0x0092,0x0000,-1,0x0093,0x0003,-1,0x0095,0x0110,
-	-1,0x0097,0x0000,-1,0x0098,0x0000,-1,0x0007,0x0133,-1,0x0020,0x0000,
-	-1,0x0021,0x0000,-2,100,-3 };
+	-1, 0x00e7, 0x0010, -1, 0x0000, 0x0001,
+	-1, 0x0001, 0x0100, -1, 0x0002, 0x0700,
+	-1, 0x0003, 0x1030, -1, 0x0004, 0x0000,
+	-1, 0x0008, 0x0207, -1, 0x0009, 0x0000,
+	-1, 0x000a, 0x0000, -1, 0x000c, 0x0001,
+	-1, 0x000d, 0x0000, -1, 0x000f, 0x0000,
+	-1, 0x0010, 0x0000, -1, 0x0011, 0x0007,
+	-1, 0x0012, 0x0000, -1, 0x0013, 0x0000,
+	-2, 50, -1, 0x0010, 0x1590, -1, 0x0011,
+	0x0227, -2, 50, -1, 0x0012, 0x009c, -2, 50,
+	-1, 0x0013, 0x1900, -1, 0x0029, 0x0023,
+	-1, 0x002b, 0x000e, -2, 50,
+	-1, 0x0020, 0x0000, -1, 0x0021, 0x0000,
+	-2, 50, -1, 0x0050, 0x0000,
+	-1, 0x0051, 0x00ef, -1, 0x0052, 0x0000,
+	-1, 0x0053, 0x013f, -1, 0x0060, 0xa700,
+	-1, 0x0061, 0x0001, -1, 0x006a, 0x0000,
+	-1, 0x0080, 0x0000, -1, 0x0081, 0x0000,
+	-1, 0x0082, 0x0000, -1, 0x0083, 0x0000,
+	-1, 0x0084, 0x0000, -1, 0x0085, 0x0000,
+	-1, 0x0090, 0x0010, -1, 0x0092, 0x0000,
+	-1, 0x0093, 0x0003, -1, 0x0095, 0x0110,
+	-1, 0x0097, 0x0000, -1, 0x0098, 0x0000,
+	-1, 0x0007, 0x0133, -1, 0x0020, 0x0000,
+	-1, 0x0021, 0x0000, -2, 100, -3 };
 
 #define HY28B_GAMMA \
 	"04 1F 4 7 7 0 7 7 6 0\n" \
 	"0F 00 1 7 4 0 0 0 6 7"
 
 static int pitft_init_sequence[] = {
-	-1,0x01,-2,5,-1,0x28,-1,0xEF,0x03,0x80,0x02,-1,0xCF,0x00,0xC1,0x30,
-	-1,0xED,0x64,0x03,0x12,0x81,-1,0xE8,0x85,0x00,0x78,
-	-1,0xCB,0x39,0x2C,0x00,0x34,0x02,-1,0xF7,0x20,-1,0xEA,0x00,0x00,
-	-1,0xC0,0x23,-1,0xC1,0x10,-1,0xC5,0x3e,0x28,-1,0xC7,0x86,-1,0x3A,0x55,
-	-1,0xB1,0x00,0x18,-1,0xB6,0x08,0x82,0x27,-1,0xF2,0x00,-1,0x26,0x01,
-	-1,0xE0,0x0F,0x31,0x2B,0x0C,0x0E,0x08,0x4E,0xF1,0x37,0x07,0x10,0x03,
-	0x0E,0x09,0x00,-1,0xE1,0x00,0x0E,0x14,0x03,0x11,0x07,0x31,0xC1,0x48,
-	0x08,0x0F,0x0C,0x31,0x36,0x0F,-1,0x11,-2,100,-1,0x29,-2,20,-3 };
+	-1, 0x01, -2, 5, -1, 0x28, -1, 0xEF,
+	0x03, 0x80, 0x02, -1, 0xCF, 0x00, 0xC1, 0x30,
+	-1, 0xED, 0x64, 0x03, 0x12, 0x81,
+	-1, 0xE8, 0x85, 0x00, 0x78,
+	-1, 0xCB, 0x39, 0x2C, 0x00, 0x34, 0x02,
+	-1, 0xF7, 0x20, -1, 0xEA, 0x00, 0x00,
+	-1, 0xC0, 0x23, -1, 0xC1, 0x10, -1, 0xC5,
+	0x3e, 0x28, -1, 0xC7, 0x86, -1, 0x3A, 0x55,
+	-1, 0xB1, 0x00, 0x18, -1, 0xB6, 0x08, 0x82,
+	0x27, -1, 0xF2, 0x00, -1, 0x26, 0x01,
+	-1, 0xE0, 0x0F, 0x31, 0x2B, 0x0C, 0x0E, 0x08,
+	0x4E, 0xF1, 0x37, 0x07, 0x10, 0x03,
+	0x0E, 0x09, 0x00, -1, 0xE1, 0x00, 0x0E, 0x14,
+	0x03, 0x11, 0x07, 0x31, 0xC1, 0x48,
+	0x08, 0x0F, 0x0C, 0x31, 0x36, 0x0F, -1,
+	0x11, -2, 100, -1, 0x29, -2, 20, -3 };
 
 static int waveshare32b_init_sequence[] = {
-	-1,0xCB,0x39,0x2C,0x00,0x34,0x02,-1,0xCF,0x00,0xC1,0x30,
-	-1,0xE8,0x85,0x00,0x78,-1,0xEA,0x00,0x00,-1,0xED,0x64,0x03,0x12,0x81,
-	-1,0xF7,0x20,-1,0xC0,0x23,-1,0xC1,0x10,-1,0xC5,0x3e,0x28,-1,0xC7,0x86,
-	-1,0x36,0x28,-1,0x3A,0x55,-1,0xB1,0x00,0x18,-1,0xB6,0x08,0x82,0x27,
-	-1,0xF2,0x00,-1,0x26,0x01,
-	-1,0xE0,0x0F,0x31,0x2B,0x0C,0x0E,0x08,0x4E,0xF1,0x37,0x07,0x10,0x03,0x0E,0x09,0x00,
-	-1,0xE1,0x00,0x0E,0x14,0x03,0x11,0x07,0x31,0xC1,0x48,0x08,0x0F,0x0C,0x31,0x36,0x0F,
-	-1,0x11,-2,120,-1,0x29,-1,0x2c,-3 };
+	-1, 0xCB, 0x39, 0x2C, 0x00, 0x34, 0x02,
+	-1, 0xCF, 0x00, 0xC1, 0x30,
+	-1, 0xE8, 0x85, 0x00, 0x78, -1, 0xEA, 0x00,
+	0x00, -1, 0xED, 0x64, 0x03, 0x12, 0x81,
+	-1, 0xF7, 0x20, -1, 0xC0, 0x23, -1, 0xC1,
+	0x10, -1, 0xC5, 0x3e, 0x28, -1, 0xC7, 0x86,
+	-1, 0x36, 0x28, -1, 0x3A, 0x55, -1, 0xB1, 0x00,
+	0x18, -1, 0xB6, 0x08, 0x82, 0x27,
+	-1, 0xF2, 0x00, -1, 0x26, 0x01,
+	-1, 0xE0, 0x0F, 0x31, 0x2B, 0x0C, 0x0E, 0x08, 0x4E,
+	0xF1, 0x37, 0x07, 0x10, 0x03, 0x0E, 0x09, 0x00,
+	-1, 0xE1, 0x00, 0x0E, 0x14, 0x03, 0x11, 0x07, 0x31,
+	0xC1, 0x48, 0x08, 0x0F, 0x0C, 0x31, 0x36, 0x0F,
+	-1, 0x11, -2, 120, -1, 0x29, -1, 0x2c, -3 };
 
 /* Supported displays in alphabetical order */
 static struct fbtft_device_display displays[] = {
@@ -463,7 +489,7 @@ static struct fbtft_device_display displays[] = {
 					.buswidth = 8,
 					.backlight = 1,
 				},
-				.startbyte = 0b01110000,
+				.startbyte = 0x70,
 				.bgr = true,
 				.gpios = (const struct fbtft_gpio []) {
 					{ "reset", 25 },
@@ -484,9 +510,9 @@ static struct fbtft_device_display displays[] = {
 					.backlight = 1,
 					.init_sequence = hy28b_init_sequence,
 				},
-				.startbyte = 0b01110000,
+				.startbyte = 0x70,
 				.bgr = true,
-				.fps= 50,
+				.fps = 50,
 				.gpios = (const struct fbtft_gpio []) {
 					{ "reset", 25 },
 					{ "led", 18 },
@@ -597,7 +623,7 @@ static struct fbtft_device_display displays[] = {
 					.buswidth = 8,
 					.backlight = 1,
 				},
-				.startbyte = 0b01110000,
+				.startbyte = 0x70,
 				.bgr = true,
 				.gpios = (const struct fbtft_gpio []) {
 					{ "reset", 25 },
@@ -676,6 +702,24 @@ static struct fbtft_device_display displays[] = {
 			}
 		}
 	}, {
+		.name = "nokia5110",
+		.spi = &(struct spi_board_info) {
+			.modalias = "fb_ili9163",
+			.max_speed_hz = 12000000,
+			.mode = SPI_MODE_0,
+			.platform_data = &(struct fbtft_platform_data) {
+				.display = {
+					.buswidth = 8,
+					.backlight = 1,
+				},
+				.bgr = true,
+				.gpios = (const struct fbtft_gpio []) {
+					{},
+				},
+			}
+		}
+	}, {
+
 		.name = "piscreen",
 		.spi = &(struct spi_board_info) {
 			.modalias = "fb_ili9486",
@@ -1100,14 +1144,14 @@ static int write_gpio16_wr_slow(struct fbtft_par *par, void *buf, size_t len)
 			for (i = 0; i < 16; i++) {
 				if ((data & 1) != (prev_data & 1))
 					gpio_set_value(par->gpio.db[i],
-								(data & 1));
+								data & 1);
 				data >>= 1;
 				prev_data >>= 1;
 			}
 		}
 #else
 		for (i = 0; i < 16; i++) {
-			gpio_set_value(par->gpio.db[i], (data & 1));
+			gpio_set_value(par->gpio.db[i], data & 1);
 			data >>= 1;
 		}
 #endif
diff --git a/drivers/staging/fbtft/flexfb.c b/drivers/staging/fbtft/flexfb.c
index 90832c3..ca39fe9 100644
--- a/drivers/staging/fbtft/flexfb.c
+++ b/drivers/staging/fbtft/flexfb.c
@@ -423,7 +423,7 @@ static int flexfb_probe_common(struct spi_device *sdev, struct platform_device *
 			}
 			par->fbtftops.write_register = fbtft_write_reg8_bus9;
 			par->fbtftops.write_vmem = fbtft_write_vmem16_bus9;
-			sdev->bits_per_word=9;
+			sdev->bits_per_word = 9;
 			ret = sdev->master->setup(sdev);
 			if (ret) {
 				dev_warn(dev,
diff --git a/drivers/staging/fbtft/internal.h b/drivers/staging/fbtft/internal.h
new file mode 100644
index 0000000..f69db82
--- /dev/null
+++ b/drivers/staging/fbtft/internal.h
@@ -0,0 +1,25 @@
+/*
+ * Copyright (C) 2013 Noralf Tronnes
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#ifndef __LINUX_FBTFT__INTERNAL_H
+#define __LINUX_FBTFT_INTERNAL_H
+
+void fbtft_sysfs_init(struct fbtft_par *par);
+void fbtft_sysfs_exit(struct fbtft_par *par);
+void fbtft_expand_debug_value(unsigned long *debug);
+int fbtft_gamma_parse_str(struct fbtft_par *par, unsigned long *curves,
+			  const char *str, int size);
+
+#endif /* __LINUX_FBTFT_INTERNAL_H */
diff --git a/drivers/staging/fsl-mc/Kconfig b/drivers/staging/fsl-mc/Kconfig
new file mode 100644
index 0000000..32df07b
--- /dev/null
+++ b/drivers/staging/fsl-mc/Kconfig
@@ -0,0 +1 @@
+source "drivers/staging/fsl-mc/bus/Kconfig"
diff --git a/drivers/staging/fsl-mc/Makefile b/drivers/staging/fsl-mc/Makefile
new file mode 100644
index 0000000..9c6a001
--- /dev/null
+++ b/drivers/staging/fsl-mc/Makefile
@@ -0,0 +1,2 @@
+# Freescale Management Complex (MC) bus drivers
+obj-$(CONFIG_FSL_MC_BUS)	+= bus/
diff --git a/drivers/staging/fsl-mc/TODO b/drivers/staging/fsl-mc/TODO
new file mode 100644
index 0000000..d78288b
--- /dev/null
+++ b/drivers/staging/fsl-mc/TODO
@@ -0,0 +1,13 @@
+* Add README file (with ASCII art) describing relationships between
+  DPAA2 objects and how combine them to make a NIC, an LS2 switch, etc.
+  Also, define all acronyms used.
+
+* Decide if multiple root fsl-mc buses will be supported per Linux instance,
+  and if so add support for this.
+
+* Add at least one device driver for a DPAA2 object (child device of the
+  fsl-mc bus).
+
+Please send any patches to Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
+german.rivera@freescale.com, devel@driverdev.osuosl.org,
+linux-kernel@vger.kernel.org
diff --git a/drivers/staging/fsl-mc/bus/Kconfig b/drivers/staging/fsl-mc/bus/Kconfig
new file mode 100644
index 0000000..0d779d9
--- /dev/null
+++ b/drivers/staging/fsl-mc/bus/Kconfig
@@ -0,0 +1,24 @@
+#
+# Freescale Management Complex (MC) bus drivers
+#
+# Copyright (C) 2014 Freescale Semiconductor, Inc.
+#
+# This file is released under the GPLv2
+#
+
+config FSL_MC_BUS
+	tristate "Freescale Management Complex (MC) bus driver"
+	depends on OF && ARM64
+	help
+	  Driver to enable the bus infrastructure for the Freescale
+          QorIQ Management Complex (fsl-mc). The fsl-mc is a hardware
+	  module of the QorIQ LS2 SoCs, that does resource management
+	  for hardware building-blocks in the SoC that can be used
+	  to dynamically create networking hardware objects such as
+	  network interfaces (NICs), crypto accelerator instances,
+	  or L2 switches.
+
+	  Only enable this option when building the kernel for
+	  Freescale QorQIQ LS2xxxx SoCs.
+
+
diff --git a/drivers/staging/fsl-mc/bus/Makefile b/drivers/staging/fsl-mc/bus/Makefile
new file mode 100644
index 0000000..25433a9
--- /dev/null
+++ b/drivers/staging/fsl-mc/bus/Makefile
@@ -0,0 +1,17 @@
+#
+# Freescale Management Complex (MC) bus drivers
+#
+# Copyright (C) 2014 Freescale Semiconductor, Inc.
+#
+# This file is released under the GPLv2
+#
+obj-$(CONFIG_FSL_MC_BUS) += mc-bus-driver.o
+
+mc-bus-driver-objs := mc-bus.o \
+		      mc-sys.o \
+		      dprc.o \
+		      dpmng.o \
+		      dprc-driver.o \
+		      mc-allocator.o \
+		      dpmcp.o \
+		      dpbp.o
diff --git a/drivers/staging/fsl-mc/bus/dpbp.c b/drivers/staging/fsl-mc/bus/dpbp.c
new file mode 100644
index 0000000..d99ab6d
--- /dev/null
+++ b/drivers/staging/fsl-mc/bus/dpbp.c
@@ -0,0 +1,358 @@
+/* Copyright 2013-2014 Freescale Semiconductor Inc.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions are met:
+* * Redistributions of source code must retain the above copyright
+* notice, this list of conditions and the following disclaimer.
+* * Redistributions in binary form must reproduce the above copyright
+* notice, this list of conditions and the following disclaimer in the
+* documentation and/or other materials provided with the distribution.
+* * Neither the name of the above-listed copyright holders nor the
+* names of any contributors may be used to endorse or promote products
+* derived from this software without specific prior written permission.
+*
+*
+* ALTERNATIVELY, this software may be distributed under the terms of the
+* GNU General Public License ("GPL") as published by the Free Software
+* Foundation, either version 2 of that License or (at your option) any
+* later version.
+*
+* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
+* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+* POSSIBILITY OF SUCH DAMAGE.
+*/
+#include "../include/mc-sys.h"
+#include "../include/mc-cmd.h"
+#include "../include/dpbp.h"
+#include "../include/dpbp-cmd.h"
+
+int dpbp_open(struct fsl_mc_io *mc_io, int dpbp_id, uint16_t *token)
+{
+	struct mc_command cmd = { 0 };
+	int err;
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPBP_CMDID_OPEN,
+					  MC_CMD_PRI_LOW, 0);
+	cmd.params[0] |= mc_enc(0, 32, dpbp_id);
+
+	/* send command to mc*/
+	err = mc_send_command(mc_io, &cmd);
+	if (err)
+		return err;
+
+	/* retrieve response parameters */
+	*token = MC_CMD_HDR_READ_TOKEN(cmd.header);
+
+	return err;
+}
+EXPORT_SYMBOL(dpbp_open);
+
+int dpbp_close(struct fsl_mc_io *mc_io, uint16_t token)
+{
+	struct mc_command cmd = { 0 };
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPBP_CMDID_CLOSE, MC_CMD_PRI_HIGH,
+					  token);
+
+	/* send command to mc*/
+	return mc_send_command(mc_io, &cmd);
+}
+EXPORT_SYMBOL(dpbp_close);
+
+int dpbp_create(struct fsl_mc_io *mc_io,
+		const struct dpbp_cfg *cfg,
+		uint16_t *token)
+{
+	struct mc_command cmd = { 0 };
+	int err;
+
+	(void)(cfg); /* unused */
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPBP_CMDID_CREATE,
+					  MC_CMD_PRI_LOW, 0);
+
+	/* send command to mc*/
+	err = mc_send_command(mc_io, &cmd);
+	if (err)
+		return err;
+
+	/* retrieve response parameters */
+	*token = MC_CMD_HDR_READ_TOKEN(cmd.header);
+
+	return 0;
+}
+
+int dpbp_destroy(struct fsl_mc_io *mc_io, uint16_t token)
+{
+	struct mc_command cmd = { 0 };
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPBP_CMDID_DESTROY,
+					  MC_CMD_PRI_LOW, token);
+
+	/* send command to mc*/
+	return mc_send_command(mc_io, &cmd);
+}
+
+int dpbp_enable(struct fsl_mc_io *mc_io, uint16_t token)
+{
+	struct mc_command cmd = { 0 };
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPBP_CMDID_ENABLE, MC_CMD_PRI_LOW,
+					  token);
+
+	/* send command to mc*/
+	return mc_send_command(mc_io, &cmd);
+}
+EXPORT_SYMBOL(dpbp_enable);
+
+int dpbp_disable(struct fsl_mc_io *mc_io, uint16_t token)
+{
+	struct mc_command cmd = { 0 };
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPBP_CMDID_DISABLE,
+					  MC_CMD_PRI_LOW, token);
+
+	/* send command to mc*/
+	return mc_send_command(mc_io, &cmd);
+}
+EXPORT_SYMBOL(dpbp_disable);
+
+int dpbp_is_enabled(struct fsl_mc_io *mc_io, uint16_t token, int *en)
+{
+	struct mc_command cmd = { 0 };
+	int err;
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPBP_CMDID_IS_ENABLED, MC_CMD_PRI_LOW,
+					  token);
+
+	/* send command to mc*/
+	err = mc_send_command(mc_io, &cmd);
+	if (err)
+		return err;
+
+	/* retrieve response parameters */
+	*en = (int)mc_dec(cmd.params[0], 0, 1);
+
+	return 0;
+}
+
+int dpbp_reset(struct fsl_mc_io *mc_io, uint16_t token)
+{
+	struct mc_command cmd = { 0 };
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPBP_CMDID_RESET,
+					  MC_CMD_PRI_LOW, token);
+
+	/* send command to mc*/
+	return mc_send_command(mc_io, &cmd);
+}
+
+int dpbp_set_irq(struct fsl_mc_io *mc_io,
+		 uint16_t token,
+		 uint8_t irq_index,
+		 uint64_t irq_paddr,
+		 uint32_t irq_val,
+		 int user_irq_id)
+{
+	struct mc_command cmd = { 0 };
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPBP_CMDID_SET_IRQ,
+					  MC_CMD_PRI_LOW, token);
+	cmd.params[0] |= mc_enc(0, 8, irq_index);
+	cmd.params[0] |= mc_enc(32, 32, irq_val);
+	cmd.params[1] |= mc_enc(0, 64, irq_paddr);
+	cmd.params[2] |= mc_enc(0, 32, user_irq_id);
+
+	/* send command to mc*/
+	return mc_send_command(mc_io, &cmd);
+}
+
+int dpbp_get_irq(struct fsl_mc_io *mc_io,
+		 uint16_t token,
+		 uint8_t irq_index,
+		 int *type,
+		 uint64_t *irq_paddr,
+		 uint32_t *irq_val,
+		 int *user_irq_id)
+{
+	struct mc_command cmd = { 0 };
+	int err;
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPBP_CMDID_GET_IRQ,
+					  MC_CMD_PRI_LOW, token);
+	cmd.params[0] |= mc_enc(32, 8, irq_index);
+
+	/* send command to mc*/
+	err = mc_send_command(mc_io, &cmd);
+	if (err)
+		return err;
+
+	/* retrieve response parameters */
+	*irq_val = (uint32_t)mc_dec(cmd.params[0], 0, 32);
+	*irq_paddr = (uint64_t)mc_dec(cmd.params[1], 0, 64);
+	*user_irq_id = (int)mc_dec(cmd.params[2], 0, 32);
+	*type = (int)mc_dec(cmd.params[2], 32, 32);
+	return 0;
+}
+
+int dpbp_set_irq_enable(struct fsl_mc_io *mc_io,
+			uint16_t token,
+			uint8_t irq_index,
+			uint8_t en)
+{
+	struct mc_command cmd = { 0 };
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPBP_CMDID_SET_IRQ_ENABLE,
+					  MC_CMD_PRI_LOW, token);
+	cmd.params[0] |= mc_enc(0, 8, en);
+	cmd.params[0] |= mc_enc(32, 8, irq_index);
+
+	/* send command to mc*/
+	return mc_send_command(mc_io, &cmd);
+}
+
+int dpbp_get_irq_enable(struct fsl_mc_io *mc_io,
+			uint16_t token,
+			uint8_t irq_index,
+			uint8_t *en)
+{
+	struct mc_command cmd = { 0 };
+	int err;
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPBP_CMDID_GET_IRQ_ENABLE,
+					  MC_CMD_PRI_LOW, token);
+	cmd.params[0] |= mc_enc(32, 8, irq_index);
+
+	/* send command to mc*/
+	err = mc_send_command(mc_io, &cmd);
+	if (err)
+		return err;
+
+	/* retrieve response parameters */
+	*en = (uint8_t)mc_dec(cmd.params[0], 0, 8);
+	return 0;
+}
+
+int dpbp_set_irq_mask(struct fsl_mc_io *mc_io,
+		      uint16_t token,
+		      uint8_t irq_index,
+		      uint32_t mask)
+{
+	struct mc_command cmd = { 0 };
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPBP_CMDID_SET_IRQ_MASK,
+					  MC_CMD_PRI_LOW, token);
+	cmd.params[0] |= mc_enc(0, 32, mask);
+	cmd.params[0] |= mc_enc(32, 8, irq_index);
+
+	/* send command to mc*/
+	return mc_send_command(mc_io, &cmd);
+}
+
+int dpbp_get_irq_mask(struct fsl_mc_io *mc_io,
+		      uint16_t token,
+		      uint8_t irq_index,
+		      uint32_t *mask)
+{
+	struct mc_command cmd = { 0 };
+	int err;
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPBP_CMDID_GET_IRQ_MASK,
+					  MC_CMD_PRI_LOW, token);
+	cmd.params[0] |= mc_enc(32, 8, irq_index);
+
+	/* send command to mc*/
+	err = mc_send_command(mc_io, &cmd);
+	if (err)
+		return err;
+
+	/* retrieve response parameters */
+	*mask = (uint32_t)mc_dec(cmd.params[0], 0, 32);
+	return 0;
+}
+
+int dpbp_get_irq_status(struct fsl_mc_io *mc_io,
+			uint16_t token,
+			uint8_t irq_index,
+			uint32_t *status)
+{
+	struct mc_command cmd = { 0 };
+	int err;
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPBP_CMDID_GET_IRQ_STATUS,
+					  MC_CMD_PRI_LOW, token);
+	cmd.params[0] |= mc_enc(32, 8, irq_index);
+
+	/* send command to mc*/
+	err = mc_send_command(mc_io, &cmd);
+	if (err)
+		return err;
+
+	/* retrieve response parameters */
+	*status = (uint32_t)mc_dec(cmd.params[0], 0, 32);
+	return 0;
+}
+
+int dpbp_clear_irq_status(struct fsl_mc_io *mc_io,
+			  uint16_t token,
+			  uint8_t irq_index,
+			  uint32_t status)
+{
+	struct mc_command cmd = { 0 };
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPBP_CMDID_CLEAR_IRQ_STATUS,
+					  MC_CMD_PRI_LOW, token);
+	cmd.params[0] |= mc_enc(0, 32, status);
+	cmd.params[0] |= mc_enc(32, 8, irq_index);
+
+	/* send command to mc*/
+	return mc_send_command(mc_io, &cmd);
+}
+
+int dpbp_get_attributes(struct fsl_mc_io *mc_io,
+			uint16_t token,
+			struct dpbp_attr *attr)
+{
+	struct mc_command cmd = { 0 };
+	int err;
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPBP_CMDID_GET_ATTR,
+					  MC_CMD_PRI_LOW, token);
+
+	/* send command to mc*/
+	err = mc_send_command(mc_io, &cmd);
+	if (err)
+		return err;
+
+	/* retrieve response parameters */
+	attr->bpid = (uint16_t)mc_dec(cmd.params[0], 16, 16);
+	attr->id = (int)mc_dec(cmd.params[0], 32, 32);
+	attr->version.major = (uint16_t)mc_dec(cmd.params[1], 0, 16);
+	attr->version.minor = (uint16_t)mc_dec(cmd.params[1], 16, 16);
+	return 0;
+}
+EXPORT_SYMBOL(dpbp_get_attributes);
diff --git a/drivers/staging/fsl-mc/bus/dpmcp-cmd.h b/drivers/staging/fsl-mc/bus/dpmcp-cmd.h
new file mode 100644
index 0000000..57f326b
--- /dev/null
+++ b/drivers/staging/fsl-mc/bus/dpmcp-cmd.h
@@ -0,0 +1,136 @@
+/* Copyright 2013-2015 Freescale Semiconductor Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of the above-listed copyright holders nor the
+ * names of any contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+#ifndef _FSL_DPMCP_CMD_H
+#define _FSL_DPMCP_CMD_H
+
+/* DPMCP Version */
+#define DPMCP_VER_MAJOR				2
+#define DPMCP_VER_MINOR				0
+
+/* Command IDs */
+#define DPMCP_CMDID_CLOSE				0x800
+#define DPMCP_CMDID_OPEN				0x80b
+#define DPMCP_CMDID_CREATE				0x90b
+#define DPMCP_CMDID_DESTROY				0x900
+
+#define DPMCP_CMDID_GET_ATTR				0x004
+#define DPMCP_CMDID_RESET				0x005
+
+#define DPMCP_CMDID_SET_IRQ				0x010
+#define DPMCP_CMDID_GET_IRQ				0x011
+#define DPMCP_CMDID_SET_IRQ_ENABLE			0x012
+#define DPMCP_CMDID_GET_IRQ_ENABLE			0x013
+#define DPMCP_CMDID_SET_IRQ_MASK			0x014
+#define DPMCP_CMDID_GET_IRQ_MASK			0x015
+#define DPMCP_CMDID_GET_IRQ_STATUS			0x016
+#define DPMCP_CMDID_CLEAR_IRQ_STATUS			0x017
+
+/*                cmd, param, offset, width, type, arg_name */
+#define DPMCP_CMD_CREATE(cmd, cfg) \
+	MC_CMD_OP(cmd, 0, 0,  32, int,      cfg->portal_id)
+
+/*                cmd, param, offset, width, type, arg_name */
+#define DPMCP_CMD_SET_IRQ(cmd, irq_index, irq_addr, irq_val, user_irq_id) \
+do { \
+	MC_CMD_OP(cmd, 0, 0,  8,  uint8_t,  irq_index);\
+	MC_CMD_OP(cmd, 0, 32, 32, uint32_t, irq_val);\
+	MC_CMD_OP(cmd, 1, 0,  64, uint64_t, irq_addr); \
+	MC_CMD_OP(cmd, 2, 0,  32, int,	    user_irq_id); \
+} while (0)
+
+/*                cmd, param, offset, width, type, arg_name */
+#define DPMCP_CMD_GET_IRQ(cmd, irq_index) \
+	MC_CMD_OP(cmd, 0, 32, 8,  uint8_t,  irq_index)
+
+/*                cmd, param, offset, width, type, arg_name */
+#define DPMCP_RSP_GET_IRQ(cmd, type, irq_addr, irq_val, user_irq_id) \
+do { \
+	MC_RSP_OP(cmd, 0, 0,  32, uint32_t, irq_val); \
+	MC_RSP_OP(cmd, 1, 0,  64, uint64_t, irq_addr); \
+	MC_RSP_OP(cmd, 2, 0,  32, int,	    user_irq_id); \
+	MC_RSP_OP(cmd, 2, 32, 32, int,	    type); \
+} while (0)
+
+/*                cmd, param, offset, width, type, arg_name */
+#define DPMCP_CMD_SET_IRQ_ENABLE(cmd, irq_index, en) \
+do { \
+	MC_CMD_OP(cmd, 0, 0,  8,  uint8_t,  en); \
+	MC_CMD_OP(cmd, 0, 32, 8,  uint8_t,  irq_index);\
+} while (0)
+
+/*                cmd, param, offset, width, type, arg_name */
+#define DPMCP_CMD_GET_IRQ_ENABLE(cmd, irq_index) \
+	MC_CMD_OP(cmd, 0, 32, 8,  uint8_t,  irq_index)
+
+/*                cmd, param, offset, width, type, arg_name */
+#define DPMCP_RSP_GET_IRQ_ENABLE(cmd, en) \
+	MC_RSP_OP(cmd, 0, 0,  8,  uint8_t,  en)
+
+/*                cmd, param, offset, width, type, arg_name */
+#define DPMCP_CMD_SET_IRQ_MASK(cmd, irq_index, mask) \
+do { \
+	MC_CMD_OP(cmd, 0, 0,  32, uint32_t, mask);\
+	MC_CMD_OP(cmd, 0, 32, 8,  uint8_t,  irq_index);\
+} while (0)
+
+/*                cmd, param, offset, width, type, arg_name */
+#define DPMCP_CMD_GET_IRQ_MASK(cmd, irq_index) \
+	MC_CMD_OP(cmd, 0, 32, 8,  uint8_t,  irq_index)
+
+/*                cmd, param, offset, width, type, arg_name */
+#define DPMCP_RSP_GET_IRQ_MASK(cmd, mask) \
+	MC_RSP_OP(cmd, 0, 0,  32, uint32_t, mask)
+
+/*                cmd, param, offset, width, type, arg_name */
+#define DPMCP_CMD_GET_IRQ_STATUS(cmd, irq_index) \
+	MC_CMD_OP(cmd, 0, 32, 8,  uint8_t,  irq_index)
+
+/*                cmd, param, offset, width, type, arg_name */
+#define DPMCP_RSP_GET_IRQ_STATUS(cmd, status) \
+	MC_RSP_OP(cmd, 0, 0,  32, uint32_t, status)
+
+/*                cmd, param, offset, width, type, arg_name */
+#define DPMCP_CMD_CLEAR_IRQ_STATUS(cmd, irq_index, status) \
+do { \
+	MC_CMD_OP(cmd, 0, 0,  32, uint32_t, status); \
+	MC_CMD_OP(cmd, 0, 32, 8,  uint8_t,  irq_index);\
+} while (0)
+
+/*                cmd, param, offset, width, type,	arg_name */
+#define DPMCP_RSP_GET_ATTRIBUTES(cmd, attr) \
+do { \
+	MC_RSP_OP(cmd, 0, 32, 32, int,	    attr->id);\
+	MC_RSP_OP(cmd, 1, 0,  16, uint16_t, attr->version.major);\
+	MC_RSP_OP(cmd, 1, 16, 16, uint16_t, attr->version.minor);\
+} while (0)
+
+#endif /* _FSL_DPMCP_CMD_H */
diff --git a/drivers/staging/fsl-mc/bus/dpmcp.c b/drivers/staging/fsl-mc/bus/dpmcp.c
new file mode 100644
index 0000000..6b9da5b
--- /dev/null
+++ b/drivers/staging/fsl-mc/bus/dpmcp.c
@@ -0,0 +1,308 @@
+/* Copyright 2013-2015 Freescale Semiconductor Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of the above-listed copyright holders nor the
+ * names of any contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+#include "../include/mc-sys.h"
+#include "../include/mc-cmd.h"
+#include "dpmcp.h"
+#include "dpmcp-cmd.h"
+
+int dpmcp_open(struct fsl_mc_io *mc_io, int dpmcp_id, uint16_t *token)
+{
+	struct mc_command cmd = { 0 };
+	int err;
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPMCP_CMDID_OPEN,
+					  MC_CMD_PRI_LOW, 0);
+	cmd.params[0] |= mc_enc(0, 32, dpmcp_id);
+
+	/* send command to mc*/
+	err = mc_send_command(mc_io, &cmd);
+	if (err)
+		return err;
+
+	/* retrieve response parameters */
+	*token = MC_CMD_HDR_READ_TOKEN(cmd.header);
+
+	return err;
+}
+
+int dpmcp_close(struct fsl_mc_io *mc_io, uint16_t token)
+{
+	struct mc_command cmd = { 0 };
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPMCP_CMDID_CLOSE, MC_CMD_PRI_HIGH,
+					  token);
+
+	/* send command to mc*/
+	return mc_send_command(mc_io, &cmd);
+}
+
+int dpmcp_create(struct fsl_mc_io *mc_io,
+		 const struct dpmcp_cfg *cfg,
+		uint16_t *token)
+{
+	struct mc_command cmd = { 0 };
+	int err;
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPMCP_CMDID_CREATE,
+					  MC_CMD_PRI_LOW, 0);
+	cmd.params[0] |= mc_enc(0, 32, cfg->portal_id);
+
+	/* send command to mc*/
+	err = mc_send_command(mc_io, &cmd);
+	if (err)
+		return err;
+
+	/* retrieve response parameters */
+	*token = MC_CMD_HDR_READ_TOKEN(cmd.header);
+
+	return 0;
+}
+
+int dpmcp_destroy(struct fsl_mc_io *mc_io, uint16_t token)
+{
+	struct mc_command cmd = { 0 };
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPMCP_CMDID_DESTROY,
+					  MC_CMD_PRI_LOW, token);
+
+	/* send command to mc*/
+	return mc_send_command(mc_io, &cmd);
+}
+
+int dpmcp_reset(struct fsl_mc_io *mc_io, uint16_t token)
+{
+	struct mc_command cmd = { 0 };
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPMCP_CMDID_RESET,
+					  MC_CMD_PRI_LOW, token);
+
+	/* send command to mc*/
+	return mc_send_command(mc_io, &cmd);
+}
+
+int dpmcp_set_irq(struct fsl_mc_io *mc_io,
+		  uint16_t token,
+		 uint8_t irq_index,
+		 uint64_t irq_addr,
+		 uint32_t irq_val,
+		 int user_irq_id)
+{
+	struct mc_command cmd = { 0 };
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPMCP_CMDID_SET_IRQ,
+					  MC_CMD_PRI_LOW, token);
+	cmd.params[0] |= mc_enc(0, 8, irq_index);
+	cmd.params[0] |= mc_enc(32, 32, irq_val);
+	cmd.params[1] |= mc_enc(0, 64, irq_addr);
+	cmd.params[2] |= mc_enc(0, 32, user_irq_id);
+
+	/* send command to mc*/
+	return mc_send_command(mc_io, &cmd);
+}
+
+int dpmcp_get_irq(struct fsl_mc_io *mc_io,
+		  uint16_t token,
+		 uint8_t irq_index,
+		 int *type,
+		 uint64_t *irq_addr,
+		 uint32_t *irq_val,
+		 int *user_irq_id)
+{
+	struct mc_command cmd = { 0 };
+	int err;
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPMCP_CMDID_GET_IRQ,
+					  MC_CMD_PRI_LOW, token);
+	cmd.params[0] |= mc_enc(32, 8, irq_index);
+
+	/* send command to mc*/
+	err = mc_send_command(mc_io, &cmd);
+	if (err)
+		return err;
+
+	/* retrieve response parameters */
+	*irq_val = (uint32_t)mc_dec(cmd.params[0], 0, 32);
+	*irq_addr = (uint64_t)mc_dec(cmd.params[1], 0, 64);
+	*user_irq_id = (int)mc_dec(cmd.params[2], 0, 32);
+	*type = (int)mc_dec(cmd.params[2], 32, 32);
+	return 0;
+}
+
+int dpmcp_set_irq_enable(struct fsl_mc_io *mc_io,
+			 uint16_t token,
+			uint8_t irq_index,
+			uint8_t en)
+{
+	struct mc_command cmd = { 0 };
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPMCP_CMDID_SET_IRQ_ENABLE,
+					  MC_CMD_PRI_LOW, token);
+	cmd.params[0] |= mc_enc(0, 8, en);
+	cmd.params[0] |= mc_enc(32, 8, irq_index);
+
+	/* send command to mc*/
+	return mc_send_command(mc_io, &cmd);
+}
+
+int dpmcp_get_irq_enable(struct fsl_mc_io *mc_io,
+			 uint16_t token,
+			uint8_t irq_index,
+			uint8_t *en)
+{
+	struct mc_command cmd = { 0 };
+	int err;
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPMCP_CMDID_GET_IRQ_ENABLE,
+					  MC_CMD_PRI_LOW, token);
+	cmd.params[0] |= mc_enc(32, 8, irq_index);
+
+	/* send command to mc*/
+	err = mc_send_command(mc_io, &cmd);
+	if (err)
+		return err;
+
+	/* retrieve response parameters */
+	*en = (uint8_t)mc_dec(cmd.params[0], 0, 8);
+	return 0;
+}
+
+int dpmcp_set_irq_mask(struct fsl_mc_io *mc_io,
+		       uint16_t token,
+		      uint8_t irq_index,
+		      uint32_t mask)
+{
+	struct mc_command cmd = { 0 };
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPMCP_CMDID_SET_IRQ_MASK,
+					  MC_CMD_PRI_LOW, token);
+	cmd.params[0] |= mc_enc(0, 32, mask);
+	cmd.params[0] |= mc_enc(32, 8, irq_index);
+
+	/* send command to mc*/
+	return mc_send_command(mc_io, &cmd);
+}
+
+int dpmcp_get_irq_mask(struct fsl_mc_io *mc_io,
+		       uint16_t token,
+		      uint8_t irq_index,
+		      uint32_t *mask)
+{
+	struct mc_command cmd = { 0 };
+	int err;
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPMCP_CMDID_GET_IRQ_MASK,
+					  MC_CMD_PRI_LOW, token);
+	cmd.params[0] |= mc_enc(32, 8, irq_index);
+
+	/* send command to mc*/
+	err = mc_send_command(mc_io, &cmd);
+	if (err)
+		return err;
+
+	/* retrieve response parameters */
+	*mask = (uint32_t)mc_dec(cmd.params[0], 0, 32);
+	return 0;
+}
+
+int dpmcp_get_irq_status(struct fsl_mc_io *mc_io,
+			 uint16_t token,
+			uint8_t irq_index,
+			uint32_t *status)
+{
+	struct mc_command cmd = { 0 };
+	int err;
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPMCP_CMDID_GET_IRQ_STATUS,
+					  MC_CMD_PRI_LOW, token);
+	cmd.params[0] |= mc_enc(32, 8, irq_index);
+
+	/* send command to mc*/
+	err = mc_send_command(mc_io, &cmd);
+	if (err)
+		return err;
+
+	/* retrieve response parameters */
+	*status = (uint32_t)mc_dec(cmd.params[0], 0, 32);
+	return 0;
+}
+
+int dpmcp_clear_irq_status(struct fsl_mc_io *mc_io,
+			   uint16_t token,
+			  uint8_t irq_index,
+			  uint32_t status)
+{
+	struct mc_command cmd = { 0 };
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPMCP_CMDID_CLEAR_IRQ_STATUS,
+					  MC_CMD_PRI_LOW, token);
+	cmd.params[0] |= mc_enc(0, 32, status);
+	cmd.params[0] |= mc_enc(32, 8, irq_index);
+
+	/* send command to mc*/
+	return mc_send_command(mc_io, &cmd);
+}
+
+int dpmcp_get_attributes(struct fsl_mc_io *mc_io,
+			 uint16_t token,
+			struct dpmcp_attr *attr)
+{
+	struct mc_command cmd = { 0 };
+	int err;
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPMCP_CMDID_GET_ATTR,
+					  MC_CMD_PRI_LOW, token);
+
+	/* send command to mc*/
+	err = mc_send_command(mc_io, &cmd);
+	if (err)
+		return err;
+
+	/* retrieve response parameters */
+	attr->id = (int)mc_dec(cmd.params[0], 32, 32);
+	attr->version.major = (uint16_t)mc_dec(cmd.params[1], 0, 16);
+	attr->version.minor = (uint16_t)mc_dec(cmd.params[1], 16, 16);
+	return 0;
+}
diff --git a/drivers/staging/fsl-mc/bus/dpmcp.h b/drivers/staging/fsl-mc/bus/dpmcp.h
new file mode 100644
index 0000000..5e7c219
--- /dev/null
+++ b/drivers/staging/fsl-mc/bus/dpmcp.h
@@ -0,0 +1,311 @@
+/* Copyright 2013-2015 Freescale Semiconductor Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of the above-listed copyright holders nor the
+ * names of any contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+#ifndef __FSL_DPMCP_H
+#define __FSL_DPMCP_H
+
+/* Data Path Management Command Portal API
+ * Contains initialization APIs and runtime control APIs for DPMCP
+ */
+
+struct fsl_mc_io;
+
+/**
+ * dpmcp_open() - Open a control session for the specified object.
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @dpmcp_id:	DPMCP unique ID
+ * @token:	Returned token; use in subsequent API calls
+ *
+ * This function can be used to open a control session for an
+ * already created object; an object may have been declared in
+ * the DPL or by calling the dpmcp_create function.
+ * This function returns a unique authentication token,
+ * associated with the specific object ID and the specific MC
+ * portal; this token must be used in all subsequent commands for
+ * this specific object
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dpmcp_open(struct fsl_mc_io *mc_io, int dpmcp_id, uint16_t *token);
+
+/* Get portal ID from pool */
+#define DPMCP_GET_PORTAL_ID_FROM_POOL (-1)
+
+/**
+ * dpmcp_close() - Close the control session of the object
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @token:	Token of DPMCP object
+ *
+ * After this function is called, no further operations are
+ * allowed on the object without opening a new control session.
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dpmcp_close(struct fsl_mc_io *mc_io, uint16_t token);
+
+/**
+ * struct dpmcp_cfg() - Structure representing DPMCP configuration
+ * @portal_id:	Portal ID; 'DPMCP_GET_PORTAL_ID_FROM_POOL' to get the portal ID
+ *		from pool
+ */
+struct dpmcp_cfg {
+	int portal_id;
+};
+
+/**
+ * dpmcp_create() - Create the DPMCP object.
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @cfg:	Configuration structure
+ * @token:	Returned token; use in subsequent API calls
+ *
+ * Create the DPMCP object, allocate required resources and
+ * perform required initialization.
+ *
+ * The object can be created either by declaring it in the
+ * DPL file, or by calling this function.
+ * This function returns a unique authentication token,
+ * associated with the specific object ID and the specific MC
+ * portal; this token must be used in all subsequent calls to
+ * this specific object. For objects that are created using the
+ * DPL file, call dpmcp_open function to get an authentication
+ * token first.
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dpmcp_create(struct fsl_mc_io	*mc_io,
+		 const struct dpmcp_cfg	*cfg,
+		uint16_t		*token);
+
+/**
+ * dpmcp_destroy() - Destroy the DPMCP object and release all its resources.
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @token:	Token of DPMCP object
+ *
+ * Return:	'0' on Success; error code otherwise.
+ */
+int dpmcp_destroy(struct fsl_mc_io *mc_io, uint16_t token);
+
+/**
+ * dpmcp_reset() - Reset the DPMCP, returns the object to initial state.
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @token:	Token of DPMCP object
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dpmcp_reset(struct fsl_mc_io *mc_io, uint16_t token);
+
+/* IRQ */
+/*!
+ * @name dpmcp IRQ Index and Events
+ */
+#define DPMCP_IRQ_INDEX                             0
+/*!< Irq index */
+#define DPMCP_IRQ_EVENT_CMD_DONE                    0x00000001
+/*!< irq event - Indicates that the link state changed */
+/* @} */
+
+/**
+ * dpmcp_set_irq() - Set IRQ information for the DPMCP to trigger an interrupt.
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @token:	Token of DPMCP object
+ * @irq_index:	Identifies the interrupt index to configure
+ * @irq_addr:	Address that must be written to
+ *				signal a message-based interrupt
+ * @irq_val:	Value to write into irq_addr address
+ * @user_irq_id: A user defined number associated with this IRQ
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dpmcp_set_irq(struct fsl_mc_io	*mc_io,
+		  uint16_t		token,
+		 uint8_t		irq_index,
+		 uint64_t		irq_addr,
+		 uint32_t		irq_val,
+		 int			user_irq_id);
+
+/**
+ * dpmcp_get_irq() - Get IRQ information from the DPMCP.
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @token:	Token of DPMCP object
+ * @irq_index:	The interrupt index to configure
+ * @type:	Interrupt type: 0 represents message interrupt
+ *				type (both irq_addr and irq_val are valid)
+ * @irq_addr:	Returned address that must be written to
+ *				signal the message-based interrupt
+ * @irq_val:	Value to write into irq_addr address
+ * @user_irq_id: A user defined number associated with this IRQ
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dpmcp_get_irq(struct fsl_mc_io	*mc_io,
+		  uint16_t		token,
+		 uint8_t		irq_index,
+		 int			*type,
+		 uint64_t		*irq_addr,
+		 uint32_t		*irq_val,
+		 int			*user_irq_id);
+
+/**
+ * dpmcp_set_irq_enable() - Set overall interrupt state.
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @token:	Token of DPMCP object
+ * @irq_index:	The interrupt index to configure
+ * @en:	Interrupt state - enable = 1, disable = 0
+ *
+ * Allows GPP software to control when interrupts are generated.
+ * Each interrupt can have up to 32 causes.  The enable/disable control's the
+ * overall interrupt state. if the interrupt is disabled no causes will cause
+ * an interrupt.
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dpmcp_set_irq_enable(struct fsl_mc_io	*mc_io,
+			 uint16_t		token,
+			uint8_t			irq_index,
+			uint8_t			en);
+
+/**
+ * dpmcp_get_irq_enable() - Get overall interrupt state
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @token:	Token of DPMCP object
+ * @irq_index:	The interrupt index to configure
+ * @en:		Returned interrupt state - enable = 1, disable = 0
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dpmcp_get_irq_enable(struct fsl_mc_io	*mc_io,
+			 uint16_t		token,
+			uint8_t			irq_index,
+			uint8_t			*en);
+
+/**
+ * dpmcp_set_irq_mask() - Set interrupt mask.
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @token:	Token of DPMCP object
+ * @irq_index:	The interrupt index to configure
+ * @mask:	Event mask to trigger interrupt;
+ *			each bit:
+ *				0 = ignore event
+ *				1 = consider event for asserting IRQ
+ *
+ * Every interrupt can have up to 32 causes and the interrupt model supports
+ * masking/unmasking each cause independently
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dpmcp_set_irq_mask(struct fsl_mc_io	*mc_io,
+		       uint16_t		token,
+		      uint8_t		irq_index,
+		      uint32_t		mask);
+
+/**
+ * dpmcp_get_irq_mask() - Get interrupt mask.
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @token:	Token of DPMCP object
+ * @irq_index:	The interrupt index to configure
+ * @mask:	Returned event mask to trigger interrupt
+ *
+ * Every interrupt can have up to 32 causes and the interrupt model supports
+ * masking/unmasking each cause independently
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dpmcp_get_irq_mask(struct fsl_mc_io	*mc_io,
+		       uint16_t		token,
+		      uint8_t		irq_index,
+		      uint32_t		*mask);
+
+/**
+ * dpmcp_get_irq_status() - Get the current status of any pending interrupts.
+ *
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @token:	Token of DPMCP object
+ * @irq_index:	The interrupt index to configure
+ * @status:	Returned interrupts status - one bit per cause:
+ *			0 = no interrupt pending
+ *			1 = interrupt pending
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dpmcp_get_irq_status(struct fsl_mc_io	*mc_io,
+			 uint16_t		token,
+			uint8_t			irq_index,
+			uint32_t		*status);
+
+/**
+ * dpmcp_clear_irq_status() - Clear a pending interrupt's status
+ *
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @token:	Token of DPMCP object
+ * @irq_index:	The interrupt index to configure
+ * @status:	Bits to clear (W1C) - one bit per cause:
+ *					0 = don't change
+ *					1 = clear status bit
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dpmcp_clear_irq_status(struct fsl_mc_io	*mc_io,
+			   uint16_t		token,
+			  uint8_t		irq_index,
+			  uint32_t		status);
+
+/**
+ * struct dpmcp_attr - Structure representing DPMCP attributes
+ * @id:		DPMCP object ID
+ * @version:	DPMCP version
+ */
+struct dpmcp_attr {
+	int id;
+	/**
+	 * struct version - Structure representing DPMCP version
+	 * @major:	DPMCP major version
+	 * @minor:	DPMCP minor version
+	 */
+	struct {
+		uint16_t major;
+		uint16_t minor;
+	} version;
+};
+
+/**
+ * dpmcp_get_attributes - Retrieve DPMCP attributes.
+ *
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @token:	Token of DPMCP object
+ * @attr:	Returned object's attributes
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dpmcp_get_attributes(struct fsl_mc_io	*mc_io,
+			 uint16_t		token,
+			struct dpmcp_attr	*attr);
+
+#endif /* __FSL_DPMCP_H */
diff --git a/drivers/staging/fsl-mc/bus/dpmng-cmd.h b/drivers/staging/fsl-mc/bus/dpmng-cmd.h
new file mode 100644
index 0000000..ba8cfa9
--- /dev/null
+++ b/drivers/staging/fsl-mc/bus/dpmng-cmd.h
@@ -0,0 +1,47 @@
+/* Copyright 2013-2014 Freescale Semiconductor Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the above-listed copyright holders nor the
+ *       names of any contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*************************************************************************//*
+ dpmng-cmd.h
+
+ defines portal commands
+
+ *//**************************************************************************/
+
+#ifndef __FSL_DPMNG_CMD_H
+#define __FSL_DPMNG_CMD_H
+
+/* Command IDs */
+#define DPMNG_CMDID_GET_CONT_ID			0x830
+#define DPMNG_CMDID_GET_VERSION			0x831
+
+#endif /* __FSL_DPMNG_CMD_H */
diff --git a/drivers/staging/fsl-mc/bus/dpmng.c b/drivers/staging/fsl-mc/bus/dpmng.c
new file mode 100644
index 0000000..58328e8
--- /dev/null
+++ b/drivers/staging/fsl-mc/bus/dpmng.c
@@ -0,0 +1,78 @@
+/* Copyright 2013-2014 Freescale Semiconductor Inc.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions are met:
+* * Redistributions of source code must retain the above copyright
+* notice, this list of conditions and the following disclaimer.
+* * Redistributions in binary form must reproduce the above copyright
+* notice, this list of conditions and the following disclaimer in the
+* documentation and/or other materials provided with the distribution.
+* * Neither the name of the above-listed copyright holders nor the
+* names of any contributors may be used to endorse or promote products
+* derived from this software without specific prior written permission.
+*
+*
+* ALTERNATIVELY, this software may be distributed under the terms of the
+* GNU General Public License ("GPL") as published by the Free Software
+* Foundation, either version 2 of that License or (at your option) any
+* later version.
+*
+* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
+* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+* POSSIBILITY OF SUCH DAMAGE.
+*/
+#include "../include/mc-sys.h"
+#include "../include/mc-cmd.h"
+#include "../include/dpmng.h"
+#include "dpmng-cmd.h"
+
+int mc_get_version(struct fsl_mc_io *mc_io, struct mc_version *mc_ver_info)
+{
+	struct mc_command cmd = { 0 };
+	int err;
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPMNG_CMDID_GET_VERSION,
+					  MC_CMD_PRI_LOW, 0);
+
+	/* send command to mc*/
+	err = mc_send_command(mc_io, &cmd);
+	if (err)
+		return err;
+
+	/* retrieve response parameters */
+	mc_ver_info->revision = mc_dec(cmd.params[0], 0, 32);
+	mc_ver_info->major = mc_dec(cmd.params[0], 32, 32);
+	mc_ver_info->minor = mc_dec(cmd.params[1], 0, 32);
+
+	return 0;
+}
+
+int dpmng_get_container_id(struct fsl_mc_io *mc_io, int *container_id)
+{
+	struct mc_command cmd = { 0 };
+	int err;
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPMNG_CMDID_GET_CONT_ID,
+					  MC_CMD_PRI_LOW, 0);
+
+	/* send command to mc*/
+	err = mc_send_command(mc_io, &cmd);
+	if (err)
+		return err;
+
+	/* retrieve response parameters */
+	*container_id = mc_dec(cmd.params[0], 0, 32);
+
+	return 0;
+}
+
diff --git a/drivers/staging/fsl-mc/bus/dprc-cmd.h b/drivers/staging/fsl-mc/bus/dprc-cmd.h
new file mode 100644
index 0000000..0920248
--- /dev/null
+++ b/drivers/staging/fsl-mc/bus/dprc-cmd.h
@@ -0,0 +1,84 @@
+/* Copyright 2013-2014 Freescale Semiconductor Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the above-listed copyright holders nor the
+ *       names of any contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*************************************************************************//*
+ dprc-cmd.h
+
+ defines dprc portal commands
+
+ *//**************************************************************************/
+
+#ifndef _FSL_DPRC_CMD_H
+#define _FSL_DPRC_CMD_H
+
+/* DPRC Version */
+#define DPRC_VER_MAJOR				3
+#define DPRC_VER_MINOR				0
+
+/* Command IDs */
+#define DPRC_CMDID_CLOSE			0x800
+#define DPRC_CMDID_OPEN				0x805
+#define DPRC_CMDID_CREATE			0x905
+
+#define DPRC_CMDID_GET_ATTR			0x004
+#define DPRC_CMDID_RESET_CONT			0x005
+
+#define DPRC_CMDID_SET_IRQ			0x010
+#define DPRC_CMDID_GET_IRQ			0x011
+#define DPRC_CMDID_SET_IRQ_ENABLE		0x012
+#define DPRC_CMDID_GET_IRQ_ENABLE		0x013
+#define DPRC_CMDID_SET_IRQ_MASK			0x014
+#define DPRC_CMDID_GET_IRQ_MASK			0x015
+#define DPRC_CMDID_GET_IRQ_STATUS		0x016
+#define DPRC_CMDID_CLEAR_IRQ_STATUS		0x017
+
+#define DPRC_CMDID_CREATE_CONT			0x151
+#define DPRC_CMDID_DESTROY_CONT			0x152
+#define DPRC_CMDID_SET_RES_QUOTA		0x155
+#define DPRC_CMDID_GET_RES_QUOTA		0x156
+#define DPRC_CMDID_ASSIGN			0x157
+#define DPRC_CMDID_UNASSIGN			0x158
+#define DPRC_CMDID_GET_OBJ_COUNT		0x159
+#define DPRC_CMDID_GET_OBJ			0x15A
+#define DPRC_CMDID_GET_RES_COUNT		0x15B
+#define DPRC_CMDID_GET_RES_IDS			0x15C
+#define DPRC_CMDID_GET_OBJ_REG			0x15E
+
+#define DPRC_CMDID_CONNECT			0x167
+#define DPRC_CMDID_DISCONNECT			0x168
+#define DPRC_CMDID_GET_POOL			0x169
+#define DPRC_CMDID_GET_POOL_COUNT		0x16A
+#define DPRC_CMDID_GET_PORTAL_PADDR		0x16B
+
+#define DPRC_CMDID_GET_CONNECTION		0x16C
+
+#endif /* _FSL_DPRC_CMD_H */
diff --git a/drivers/staging/fsl-mc/bus/dprc-driver.c b/drivers/staging/fsl-mc/bus/dprc-driver.c
new file mode 100644
index 0000000..35c06cf
--- /dev/null
+++ b/drivers/staging/fsl-mc/bus/dprc-driver.c
@@ -0,0 +1,486 @@
+/*
+ * Freescale data path resource container (DPRC) driver
+ *
+ * Copyright (C) 2014 Freescale Semiconductor, Inc.
+ * Author: German Rivera <German.Rivera@freescale.com>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include "../include/mc-private.h"
+#include "../include/mc-sys.h"
+#include <linux/module.h>
+#include <linux/slab.h>
+#include "dprc-cmd.h"
+
+struct dprc_child_objs {
+	int child_count;
+	struct dprc_obj_desc *child_array;
+};
+
+static int __fsl_mc_device_remove_if_not_in_mc(struct device *dev, void *data)
+{
+	int i;
+	struct dprc_child_objs *objs;
+	struct fsl_mc_device *mc_dev;
+
+	WARN_ON(!dev);
+	WARN_ON(!data);
+	mc_dev = to_fsl_mc_device(dev);
+	objs = data;
+
+	for (i = 0; i < objs->child_count; i++) {
+		struct dprc_obj_desc *obj_desc = &objs->child_array[i];
+
+		if (strlen(obj_desc->type) != 0 &&
+		    FSL_MC_DEVICE_MATCH(mc_dev, obj_desc))
+			break;
+	}
+
+	if (i == objs->child_count)
+		fsl_mc_device_remove(mc_dev);
+
+	return 0;
+}
+
+static int __fsl_mc_device_remove(struct device *dev, void *data)
+{
+	WARN_ON(!dev);
+	WARN_ON(data);
+	fsl_mc_device_remove(to_fsl_mc_device(dev));
+	return 0;
+}
+
+/**
+ * dprc_remove_devices - Removes devices for objects removed from a DPRC
+ *
+ * @mc_bus_dev: pointer to the fsl-mc device that represents a DPRC object
+ * @obj_desc_array: array of object descriptors for child objects currently
+ * present in the DPRC in the MC.
+ * @num_child_objects_in_mc: number of entries in obj_desc_array
+ *
+ * Synchronizes the state of the Linux bus driver with the actual state of
+ * the MC by removing devices that represent MC objects that have
+ * been dynamically removed in the physical DPRC.
+ */
+static void dprc_remove_devices(struct fsl_mc_device *mc_bus_dev,
+				struct dprc_obj_desc *obj_desc_array,
+				int num_child_objects_in_mc)
+{
+	if (num_child_objects_in_mc != 0) {
+		/*
+		 * Remove child objects that are in the DPRC in Linux,
+		 * but not in the MC:
+		 */
+		struct dprc_child_objs objs;
+
+		objs.child_count = num_child_objects_in_mc;
+		objs.child_array = obj_desc_array;
+		device_for_each_child(&mc_bus_dev->dev, &objs,
+				      __fsl_mc_device_remove_if_not_in_mc);
+	} else {
+		/*
+		 * There are no child objects for this DPRC in the MC.
+		 * So, remove all the child devices from Linux:
+		 */
+		device_for_each_child(&mc_bus_dev->dev, NULL,
+				      __fsl_mc_device_remove);
+	}
+}
+
+static int __fsl_mc_device_match(struct device *dev, void *data)
+{
+	struct dprc_obj_desc *obj_desc = data;
+	struct fsl_mc_device *mc_dev = to_fsl_mc_device(dev);
+
+	return FSL_MC_DEVICE_MATCH(mc_dev, obj_desc);
+}
+
+static struct fsl_mc_device *fsl_mc_device_lookup(struct dprc_obj_desc
+								*obj_desc,
+						  struct fsl_mc_device
+								*mc_bus_dev)
+{
+	struct device *dev;
+
+	dev = device_find_child(&mc_bus_dev->dev, obj_desc,
+				__fsl_mc_device_match);
+
+	return dev ? to_fsl_mc_device(dev) : NULL;
+}
+
+/**
+ * check_plugged_state_change - Check change in an MC object's plugged state
+ *
+ * @mc_dev: pointer to the fsl-mc device for a given MC object
+ * @obj_desc: pointer to the MC object's descriptor in the MC
+ *
+ * If the plugged state has changed from unplugged to plugged, the fsl-mc
+ * device is bound to the corresponding device driver.
+ * If the plugged state has changed from plugged to unplugged, the fsl-mc
+ * device is unbound from the corresponding device driver.
+ */
+static void check_plugged_state_change(struct fsl_mc_device *mc_dev,
+				       struct dprc_obj_desc *obj_desc)
+{
+	int error;
+	uint32_t plugged_flag_at_mc =
+			(obj_desc->state & DPRC_OBJ_STATE_PLUGGED);
+
+	if (plugged_flag_at_mc !=
+	    (mc_dev->obj_desc.state & DPRC_OBJ_STATE_PLUGGED)) {
+		if (plugged_flag_at_mc) {
+			mc_dev->obj_desc.state |= DPRC_OBJ_STATE_PLUGGED;
+			error = device_attach(&mc_dev->dev);
+			if (error < 0) {
+				dev_err(&mc_dev->dev,
+					"device_attach() failed: %d\n",
+					error);
+			}
+		} else {
+			mc_dev->obj_desc.state &= ~DPRC_OBJ_STATE_PLUGGED;
+			device_release_driver(&mc_dev->dev);
+		}
+	}
+}
+
+/**
+ * dprc_add_new_devices - Adds devices to the logical bus for a DPRC
+ *
+ * @mc_bus_dev: pointer to the fsl-mc device that represents a DPRC object
+ * @obj_desc_array: array of device descriptors for child devices currently
+ * present in the physical DPRC.
+ * @num_child_objects_in_mc: number of entries in obj_desc_array
+ *
+ * Synchronizes the state of the Linux bus driver with the actual
+ * state of the MC by adding objects that have been newly discovered
+ * in the physical DPRC.
+ */
+static void dprc_add_new_devices(struct fsl_mc_device *mc_bus_dev,
+				 struct dprc_obj_desc *obj_desc_array,
+				 int num_child_objects_in_mc)
+{
+	int error;
+	int i;
+
+	for (i = 0; i < num_child_objects_in_mc; i++) {
+		struct fsl_mc_device *child_dev;
+		struct dprc_obj_desc *obj_desc = &obj_desc_array[i];
+
+		if (strlen(obj_desc->type) == 0)
+			continue;
+
+		/*
+		 * Check if device is already known to Linux:
+		 */
+		child_dev = fsl_mc_device_lookup(obj_desc, mc_bus_dev);
+		if (child_dev) {
+			check_plugged_state_change(child_dev, obj_desc);
+			continue;
+		}
+
+		error = fsl_mc_device_add(obj_desc, NULL, &mc_bus_dev->dev,
+					  &child_dev);
+		if (error < 0)
+			continue;
+	}
+}
+
+static void dprc_init_all_resource_pools(struct fsl_mc_device *mc_bus_dev)
+{
+	int pool_type;
+	struct fsl_mc_bus *mc_bus = to_fsl_mc_bus(mc_bus_dev);
+
+	for (pool_type = 0; pool_type < FSL_MC_NUM_POOL_TYPES; pool_type++) {
+		struct fsl_mc_resource_pool *res_pool =
+		    &mc_bus->resource_pools[pool_type];
+
+		res_pool->type = pool_type;
+		res_pool->max_count = 0;
+		res_pool->free_count = 0;
+		res_pool->mc_bus = mc_bus;
+		INIT_LIST_HEAD(&res_pool->free_list);
+		mutex_init(&res_pool->mutex);
+	}
+}
+
+static void dprc_cleanup_resource_pool(struct fsl_mc_device *mc_bus_dev,
+				       enum fsl_mc_pool_type pool_type)
+{
+	struct fsl_mc_resource *resource;
+	struct fsl_mc_resource *next;
+	struct fsl_mc_bus *mc_bus = to_fsl_mc_bus(mc_bus_dev);
+	struct fsl_mc_resource_pool *res_pool =
+					&mc_bus->resource_pools[pool_type];
+	int free_count = 0;
+
+	WARN_ON(res_pool->type != pool_type);
+	WARN_ON(res_pool->free_count != res_pool->max_count);
+
+	list_for_each_entry_safe(resource, next, &res_pool->free_list, node) {
+		free_count++;
+		WARN_ON(resource->type != res_pool->type);
+		WARN_ON(resource->parent_pool != res_pool);
+		devm_kfree(&mc_bus_dev->dev, resource);
+	}
+
+	WARN_ON(free_count != res_pool->free_count);
+}
+
+static void dprc_cleanup_all_resource_pools(struct fsl_mc_device *mc_bus_dev)
+{
+	int pool_type;
+
+	for (pool_type = 0; pool_type < FSL_MC_NUM_POOL_TYPES; pool_type++)
+		dprc_cleanup_resource_pool(mc_bus_dev, pool_type);
+}
+
+/**
+ * dprc_scan_objects - Discover objects in a DPRC
+ *
+ * @mc_bus_dev: pointer to the fsl-mc device that represents a DPRC object
+ *
+ * Detects objects added and removed from a DPRC and synchronizes the
+ * state of the Linux bus driver, MC by adding and removing
+ * devices accordingly.
+ * Two types of devices can be found in a DPRC: allocatable objects (e.g.,
+ * dpbp, dpmcp) and non-allocatable devices (e.g., dprc, dpni).
+ * All allocatable devices needed to be probed before all non-allocatable
+ * devices, to ensure that device drivers for non-allocatable
+ * devices can allocate any type of allocatable devices.
+ * That is, we need to ensure that the corresponding resource pools are
+ * populated before they can get allocation requests from probe callbacks
+ * of the device drivers for the non-allocatable devices.
+ */
+int dprc_scan_objects(struct fsl_mc_device *mc_bus_dev)
+{
+	int num_child_objects;
+	int dprc_get_obj_failures;
+	int error;
+	struct dprc_obj_desc *child_obj_desc_array = NULL;
+
+	error = dprc_get_obj_count(mc_bus_dev->mc_io,
+				   mc_bus_dev->mc_handle,
+				   &num_child_objects);
+	if (error < 0) {
+		dev_err(&mc_bus_dev->dev, "dprc_get_obj_count() failed: %d\n",
+			error);
+		return error;
+	}
+
+	if (num_child_objects != 0) {
+		int i;
+
+		child_obj_desc_array =
+		    devm_kmalloc_array(&mc_bus_dev->dev, num_child_objects,
+				       sizeof(*child_obj_desc_array),
+				       GFP_KERNEL);
+		if (!child_obj_desc_array)
+			return -ENOMEM;
+
+		/*
+		 * Discover objects currently present in the physical DPRC:
+		 */
+		dprc_get_obj_failures = 0;
+		for (i = 0; i < num_child_objects; i++) {
+			struct dprc_obj_desc *obj_desc =
+			    &child_obj_desc_array[i];
+
+			error = dprc_get_obj(mc_bus_dev->mc_io,
+					     mc_bus_dev->mc_handle,
+					     i, obj_desc);
+			if (error < 0) {
+				dev_err(&mc_bus_dev->dev,
+					"dprc_get_obj(i=%d) failed: %d\n",
+					i, error);
+				/*
+				 * Mark the obj entry as "invalid", by using the
+				 * empty string as obj type:
+				 */
+				obj_desc->type[0] = '\0';
+				obj_desc->id = error;
+				dprc_get_obj_failures++;
+				continue;
+			}
+
+			dev_dbg(&mc_bus_dev->dev,
+				"Discovered object: type %s, id %d\n",
+				obj_desc->type, obj_desc->id);
+		}
+
+		if (dprc_get_obj_failures != 0) {
+			dev_err(&mc_bus_dev->dev,
+				"%d out of %d devices could not be retrieved\n",
+				dprc_get_obj_failures, num_child_objects);
+		}
+	}
+
+	dprc_remove_devices(mc_bus_dev, child_obj_desc_array,
+			    num_child_objects);
+
+	dprc_add_new_devices(mc_bus_dev, child_obj_desc_array,
+			     num_child_objects);
+
+	if (child_obj_desc_array)
+		devm_kfree(&mc_bus_dev->dev, child_obj_desc_array);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(dprc_scan_objects);
+
+/**
+ * dprc_scan_container - Scans a physical DPRC and synchronizes Linux bus state
+ *
+ * @mc_bus_dev: pointer to the fsl-mc device that represents a DPRC object
+ *
+ * Scans the physical DPRC and synchronizes the state of the Linux
+ * bus driver with the actual state of the MC by adding and removing
+ * devices as appropriate.
+ */
+int dprc_scan_container(struct fsl_mc_device *mc_bus_dev)
+{
+	int error;
+	struct fsl_mc_bus *mc_bus = to_fsl_mc_bus(mc_bus_dev);
+
+	dprc_init_all_resource_pools(mc_bus_dev);
+
+	/*
+	 * Discover objects in the DPRC:
+	 */
+	mutex_lock(&mc_bus->scan_mutex);
+	error = dprc_scan_objects(mc_bus_dev);
+	mutex_unlock(&mc_bus->scan_mutex);
+	if (error < 0)
+		goto error;
+
+	return 0;
+error:
+	dprc_cleanup_all_resource_pools(mc_bus_dev);
+	return error;
+}
+EXPORT_SYMBOL_GPL(dprc_scan_container);
+
+/**
+ * dprc_probe - callback invoked when a DPRC is being bound to this driver
+ *
+ * @mc_dev: Pointer to fsl-mc device representing a DPRC
+ *
+ * It opens the physical DPRC in the MC.
+ * It scans the DPRC to discover the MC objects contained in it.
+ * It creates the interrupt pool for the MC bus associated with the DPRC.
+ * It configures the interrupts for the DPRC device itself.
+ */
+static int dprc_probe(struct fsl_mc_device *mc_dev)
+{
+	int error;
+	size_t region_size;
+	struct fsl_mc_bus *mc_bus = to_fsl_mc_bus(mc_dev);
+
+	if (WARN_ON(strcmp(mc_dev->obj_desc.type, "dprc") != 0))
+		return -EINVAL;
+
+	if (!mc_dev->mc_io) {
+		/*
+		 * This is a child DPRC:
+		 */
+		if (WARN_ON(mc_dev->obj_desc.region_count == 0))
+			return -EINVAL;
+
+		region_size = mc_dev->regions[0].end -
+			      mc_dev->regions[0].start + 1;
+
+		error = fsl_create_mc_io(&mc_dev->dev,
+					 mc_dev->regions[0].start,
+					 region_size,
+					 NULL, 0, &mc_dev->mc_io);
+		if (error < 0)
+			return error;
+	}
+
+	error = dprc_open(mc_dev->mc_io, mc_dev->obj_desc.id,
+			  &mc_dev->mc_handle);
+	if (error < 0) {
+		dev_err(&mc_dev->dev, "dprc_open() failed: %d\n", error);
+		goto error_cleanup_mc_io;
+	}
+
+	mutex_init(&mc_bus->scan_mutex);
+
+	/*
+	 * Discover MC objects in DPRC object:
+	 */
+	error = dprc_scan_container(mc_dev);
+	if (error < 0)
+		goto error_cleanup_open;
+
+	dev_info(&mc_dev->dev, "DPRC device bound to driver");
+	return 0;
+
+error_cleanup_open:
+	(void)dprc_close(mc_dev->mc_io, mc_dev->mc_handle);
+
+error_cleanup_mc_io:
+	fsl_destroy_mc_io(mc_dev->mc_io);
+	return error;
+}
+
+/**
+ * dprc_remove - callback invoked when a DPRC is being unbound from this driver
+ *
+ * @mc_dev: Pointer to fsl-mc device representing the DPRC
+ *
+ * It removes the DPRC's child objects from Linux (not from the MC) and
+ * closes the DPRC device in the MC.
+ * It tears down the interrupts that were configured for the DPRC device.
+ * It destroys the interrupt pool associated with this MC bus.
+ */
+static int dprc_remove(struct fsl_mc_device *mc_dev)
+{
+	int error;
+
+	if (WARN_ON(strcmp(mc_dev->obj_desc.type, "dprc") != 0))
+		return -EINVAL;
+	if (WARN_ON(!mc_dev->mc_io))
+		return -EINVAL;
+
+	device_for_each_child(&mc_dev->dev, NULL, __fsl_mc_device_remove);
+	dprc_cleanup_all_resource_pools(mc_dev);
+	error = dprc_close(mc_dev->mc_io, mc_dev->mc_handle);
+	if (error < 0)
+		dev_err(&mc_dev->dev, "dprc_close() failed: %d\n", error);
+
+	dev_info(&mc_dev->dev, "DPRC device unbound from driver");
+	return 0;
+}
+
+static const struct fsl_mc_device_match_id match_id_table[] = {
+	{
+	 .vendor = FSL_MC_VENDOR_FREESCALE,
+	 .obj_type = "dprc",
+	 .ver_major = DPRC_VER_MAJOR,
+	 .ver_minor = DPRC_VER_MINOR},
+	{.vendor = 0x0},
+};
+
+static struct fsl_mc_driver dprc_driver = {
+	.driver = {
+		   .name = FSL_MC_DPRC_DRIVER_NAME,
+		   .owner = THIS_MODULE,
+		   .pm = NULL,
+		   },
+	.match_id_table = match_id_table,
+	.probe = dprc_probe,
+	.remove = dprc_remove,
+};
+
+int __init dprc_driver_init(void)
+{
+	return fsl_mc_driver_register(&dprc_driver);
+}
+
+void __exit dprc_driver_exit(void)
+{
+	fsl_mc_driver_unregister(&dprc_driver);
+}
diff --git a/drivers/staging/fsl-mc/bus/dprc.c b/drivers/staging/fsl-mc/bus/dprc.c
new file mode 100644
index 0000000..19b26e6
--- /dev/null
+++ b/drivers/staging/fsl-mc/bus/dprc.c
@@ -0,0 +1,913 @@
+/* Copyright 2013-2014 Freescale Semiconductor Inc.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions are met:
+* * Redistributions of source code must retain the above copyright
+* notice, this list of conditions and the following disclaimer.
+* * Redistributions in binary form must reproduce the above copyright
+* notice, this list of conditions and the following disclaimer in the
+* documentation and/or other materials provided with the distribution.
+* * Neither the name of the above-listed copyright holders nor the
+* names of any contributors may be used to endorse or promote products
+* derived from this software without specific prior written permission.
+*
+*
+* ALTERNATIVELY, this software may be distributed under the terms of the
+* GNU General Public License ("GPL") as published by the Free Software
+* Foundation, either version 2 of that License or (at your option) any
+* later version.
+*
+* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
+* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+* POSSIBILITY OF SUCH DAMAGE.
+*/
+#include "../include/mc-sys.h"
+#include "../include/mc-cmd.h"
+#include "../include/dprc.h"
+#include "dprc-cmd.h"
+
+int dprc_open(struct fsl_mc_io *mc_io, int container_id, uint16_t *token)
+{
+	struct mc_command cmd = { 0 };
+	int err;
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPRC_CMDID_OPEN, MC_CMD_PRI_LOW,
+					  0);
+	cmd.params[0] |= mc_enc(0, 32, container_id);
+
+	/* send command to mc*/
+	err = mc_send_command(mc_io, &cmd);
+	if (err)
+		return err;
+
+	/* retrieve response parameters */
+	*token = MC_CMD_HDR_READ_TOKEN(cmd.header);
+
+	return 0;
+}
+EXPORT_SYMBOL(dprc_open);
+
+int dprc_close(struct fsl_mc_io *mc_io, uint16_t token)
+{
+	struct mc_command cmd = { 0 };
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPRC_CMDID_CLOSE, MC_CMD_PRI_HIGH,
+					  token);
+
+	/* send command to mc*/
+	return mc_send_command(mc_io, &cmd);
+}
+EXPORT_SYMBOL(dprc_close);
+
+int dprc_create_container(struct fsl_mc_io *mc_io,
+			  uint16_t token,
+			  struct dprc_cfg *cfg,
+			  int *child_container_id,
+			  uint64_t *child_portal_paddr)
+{
+	struct mc_command cmd = { 0 };
+	int err;
+
+	/* prepare command */
+	cmd.params[0] |= mc_enc(32, 16, cfg->icid);
+	cmd.params[0] |= mc_enc(0, 32, cfg->options);
+	cmd.params[1] |= mc_enc(32, 32, cfg->portal_id);
+
+	cmd.header = mc_encode_cmd_header(DPRC_CMDID_CREATE_CONT,
+					  MC_CMD_PRI_LOW, token);
+
+	/* send command to mc*/
+	err = mc_send_command(mc_io, &cmd);
+	if (err)
+		return err;
+
+	/* retrieve response parameters */
+	*child_container_id = mc_dec(cmd.params[1], 0, 32);
+	*child_portal_paddr = mc_dec(cmd.params[2], 0, 64);
+
+	return 0;
+}
+
+int dprc_destroy_container(struct fsl_mc_io *mc_io,
+			   uint16_t token,
+			   int child_container_id)
+{
+	struct mc_command cmd = { 0 };
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPRC_CMDID_DESTROY_CONT,
+					  MC_CMD_PRI_LOW, token);
+	cmd.params[0] |= mc_enc(0, 32, child_container_id);
+
+	/* send command to mc*/
+	return mc_send_command(mc_io, &cmd);
+}
+
+int dprc_reset_container(struct fsl_mc_io *mc_io,
+			 uint16_t token,
+			 int child_container_id)
+{
+	struct mc_command cmd = { 0 };
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPRC_CMDID_RESET_CONT,
+					  MC_CMD_PRI_LOW, token);
+	cmd.params[0] |= mc_enc(0, 32, child_container_id);
+
+	/* send command to mc*/
+	return mc_send_command(mc_io, &cmd);
+}
+
+int dprc_get_irq(struct fsl_mc_io *mc_io,
+		 uint16_t token,
+		 uint8_t irq_index,
+		 int *type,
+		 uint64_t *irq_paddr,
+		 uint32_t *irq_val,
+		 int *user_irq_id)
+{
+	struct mc_command cmd = { 0 };
+	int err;
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_IRQ,
+					  MC_CMD_PRI_LOW,
+					  token);
+	cmd.params[0] |= mc_enc(32, 8, irq_index);
+
+	/* send command to mc*/
+	err = mc_send_command(mc_io, &cmd);
+	if (err)
+		return err;
+
+	/* retrieve response parameters */
+	*irq_val = mc_dec(cmd.params[0], 0, 32);
+	*irq_paddr = mc_dec(cmd.params[1], 0, 64);
+	*user_irq_id = mc_dec(cmd.params[2], 0, 32);
+	*type = mc_dec(cmd.params[2], 32, 32);
+
+	return 0;
+}
+
+int dprc_set_irq(struct fsl_mc_io *mc_io,
+		 uint16_t token,
+		 uint8_t irq_index,
+		 uint64_t irq_paddr,
+		 uint32_t irq_val,
+		 int user_irq_id)
+{
+	struct mc_command cmd = { 0 };
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPRC_CMDID_SET_IRQ,
+					  MC_CMD_PRI_LOW,
+					  token);
+	cmd.params[0] |= mc_enc(32, 8, irq_index);
+	cmd.params[0] |= mc_enc(0, 32, irq_val);
+	cmd.params[1] |= mc_enc(0, 64, irq_paddr);
+	cmd.params[2] |= mc_enc(0, 32, user_irq_id);
+
+	/* send command to mc*/
+	return mc_send_command(mc_io, &cmd);
+}
+
+int dprc_get_irq_enable(struct fsl_mc_io *mc_io,
+			uint16_t token,
+			uint8_t irq_index,
+			uint8_t *en)
+{
+	struct mc_command cmd = { 0 };
+	int err;
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_IRQ_ENABLE,
+					  MC_CMD_PRI_LOW, token);
+	cmd.params[0] |= mc_enc(32, 8, irq_index);
+
+	/* send command to mc*/
+	err = mc_send_command(mc_io, &cmd);
+	if (err)
+		return err;
+
+	/* retrieve response parameters */
+	*en = mc_dec(cmd.params[0], 0, 8);
+
+	return 0;
+}
+
+int dprc_set_irq_enable(struct fsl_mc_io *mc_io,
+			uint16_t token,
+			uint8_t irq_index,
+			uint8_t en)
+{
+	struct mc_command cmd = { 0 };
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPRC_CMDID_SET_IRQ_ENABLE,
+					  MC_CMD_PRI_LOW, token);
+	cmd.params[0] |= mc_enc(0, 8, en);
+	cmd.params[0] |= mc_enc(32, 8, irq_index);
+
+	/* send command to mc*/
+	return mc_send_command(mc_io, &cmd);
+}
+
+int dprc_get_irq_mask(struct fsl_mc_io *mc_io,
+		      uint16_t token,
+		      uint8_t irq_index,
+		      uint32_t *mask)
+{
+	struct mc_command cmd = { 0 };
+	int err;
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_IRQ_MASK,
+					  MC_CMD_PRI_LOW, token);
+	cmd.params[0] |= mc_enc(32, 8, irq_index);
+
+	/* send command to mc*/
+	err = mc_send_command(mc_io, &cmd);
+	if (err)
+		return err;
+
+	/* retrieve response parameters */
+	*mask = mc_dec(cmd.params[0], 0, 32);
+
+	return 0;
+}
+
+int dprc_set_irq_mask(struct fsl_mc_io *mc_io,
+		      uint16_t token,
+		      uint8_t irq_index,
+		      uint32_t mask)
+{
+	struct mc_command cmd = { 0 };
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPRC_CMDID_SET_IRQ_MASK,
+					  MC_CMD_PRI_LOW, token);
+	cmd.params[0] |= mc_enc(0, 32, mask);
+	cmd.params[0] |= mc_enc(32, 8, irq_index);
+
+	/* send command to mc*/
+	return mc_send_command(mc_io, &cmd);
+}
+
+int dprc_get_irq_status(struct fsl_mc_io *mc_io,
+			uint16_t token,
+			uint8_t irq_index,
+			uint32_t *status)
+{
+	struct mc_command cmd = { 0 };
+	int err;
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_IRQ_STATUS,
+					  MC_CMD_PRI_LOW, token);
+	cmd.params[0] |= mc_enc(32, 8, irq_index);
+
+	/* send command to mc*/
+	err = mc_send_command(mc_io, &cmd);
+	if (err)
+		return err;
+
+	/* retrieve response parameters */
+	*status = mc_dec(cmd.params[0], 0, 32);
+
+	return 0;
+}
+
+int dprc_clear_irq_status(struct fsl_mc_io *mc_io,
+			  uint16_t token,
+			  uint8_t irq_index,
+			  uint32_t status)
+{
+	struct mc_command cmd = { 0 };
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPRC_CMDID_CLEAR_IRQ_STATUS,
+					  MC_CMD_PRI_LOW, token);
+	cmd.params[0] |= mc_enc(0, 32, status);
+	cmd.params[0] |= mc_enc(32, 8, irq_index);
+
+	/* send command to mc*/
+	return mc_send_command(mc_io, &cmd);
+}
+
+int dprc_get_attributes(struct fsl_mc_io *mc_io,
+			uint16_t token,
+			struct dprc_attributes *attr)
+{
+	struct mc_command cmd = { 0 };
+	int err;
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_ATTR,
+					  MC_CMD_PRI_LOW,
+					  token);
+
+	/* send command to mc*/
+	err = mc_send_command(mc_io, &cmd);
+	if (err)
+		return err;
+
+	/* retrieve response parameters */
+	attr->container_id = mc_dec(cmd.params[0], 0, 32);
+	attr->icid = mc_dec(cmd.params[0], 32, 16);
+	attr->options = mc_dec(cmd.params[1], 0, 32);
+	attr->portal_id = mc_dec(cmd.params[1], 32, 32);
+	attr->version.major = mc_dec(cmd.params[2], 0, 16);
+	attr->version.minor = mc_dec(cmd.params[2], 16, 16);
+
+	return 0;
+}
+
+int dprc_set_res_quota(struct fsl_mc_io *mc_io,
+		       uint16_t token,
+		       int child_container_id,
+		       char *type,
+		       uint16_t quota)
+{
+	struct mc_command cmd = { 0 };
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPRC_CMDID_SET_RES_QUOTA,
+					  MC_CMD_PRI_LOW, token);
+	cmd.params[0] |= mc_enc(0, 32, child_container_id);
+	cmd.params[0] |= mc_enc(32, 16, quota);
+	cmd.params[1] |= mc_enc(0, 8, type[0]);
+	cmd.params[1] |= mc_enc(8, 8, type[1]);
+	cmd.params[1] |= mc_enc(16, 8, type[2]);
+	cmd.params[1] |= mc_enc(24, 8, type[3]);
+	cmd.params[1] |= mc_enc(32, 8, type[4]);
+	cmd.params[1] |= mc_enc(40, 8, type[5]);
+	cmd.params[1] |= mc_enc(48, 8, type[6]);
+	cmd.params[1] |= mc_enc(56, 8, type[7]);
+	cmd.params[2] |= mc_enc(0, 8, type[8]);
+	cmd.params[2] |= mc_enc(8, 8, type[9]);
+	cmd.params[2] |= mc_enc(16, 8, type[10]);
+	cmd.params[2] |= mc_enc(24, 8, type[11]);
+	cmd.params[2] |= mc_enc(32, 8, type[12]);
+	cmd.params[2] |= mc_enc(40, 8, type[13]);
+	cmd.params[2] |= mc_enc(48, 8, type[14]);
+	cmd.params[2] |= mc_enc(56, 8, '\0');
+
+	/* send command to mc*/
+	return mc_send_command(mc_io, &cmd);
+}
+
+int dprc_get_res_quota(struct fsl_mc_io *mc_io,
+		       uint16_t token,
+		       int child_container_id,
+		       char *type,
+		       uint16_t *quota)
+{
+	struct mc_command cmd = { 0 };
+	int err;
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_RES_QUOTA,
+					  MC_CMD_PRI_LOW, token);
+	cmd.params[0] |= mc_enc(0, 32, child_container_id);
+	cmd.params[1] |= mc_enc(0, 8, type[0]);
+	cmd.params[1] |= mc_enc(8, 8, type[1]);
+	cmd.params[1] |= mc_enc(16, 8, type[2]);
+	cmd.params[1] |= mc_enc(24, 8, type[3]);
+	cmd.params[1] |= mc_enc(32, 8, type[4]);
+	cmd.params[1] |= mc_enc(40, 8, type[5]);
+	cmd.params[1] |= mc_enc(48, 8, type[6]);
+	cmd.params[1] |= mc_enc(56, 8, type[7]);
+	cmd.params[2] |= mc_enc(0, 8, type[8]);
+	cmd.params[2] |= mc_enc(8, 8, type[9]);
+	cmd.params[2] |= mc_enc(16, 8, type[10]);
+	cmd.params[2] |= mc_enc(24, 8, type[11]);
+	cmd.params[2] |= mc_enc(32, 8, type[12]);
+	cmd.params[2] |= mc_enc(40, 8, type[13]);
+	cmd.params[2] |= mc_enc(48, 8, type[14]);
+	cmd.params[2] |= mc_enc(56, 8, '\0');
+
+	/* send command to mc*/
+	err = mc_send_command(mc_io, &cmd);
+	if (err)
+		return err;
+
+	/* retrieve response parameters */
+	*quota = mc_dec(cmd.params[0], 32, 16);
+
+	return 0;
+}
+
+int dprc_assign(struct fsl_mc_io *mc_io,
+		uint16_t token,
+		int container_id,
+		struct dprc_res_req *res_req)
+{
+	struct mc_command cmd = { 0 };
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPRC_CMDID_ASSIGN,
+					  MC_CMD_PRI_LOW, token);
+	cmd.params[0] |= mc_enc(0, 32, container_id);
+	cmd.params[0] |= mc_enc(32, 32, res_req->options);
+	cmd.params[1] |= mc_enc(0, 32, res_req->num);
+	cmd.params[1] |= mc_enc(32, 32, res_req->id_base_align);
+	cmd.params[2] |= mc_enc(0, 8, res_req->type[0]);
+	cmd.params[2] |= mc_enc(8, 8, res_req->type[1]);
+	cmd.params[2] |= mc_enc(16, 8, res_req->type[2]);
+	cmd.params[2] |= mc_enc(24, 8, res_req->type[3]);
+	cmd.params[2] |= mc_enc(32, 8, res_req->type[4]);
+	cmd.params[2] |= mc_enc(40, 8, res_req->type[5]);
+	cmd.params[2] |= mc_enc(48, 8, res_req->type[6]);
+	cmd.params[2] |= mc_enc(56, 8, res_req->type[7]);
+	cmd.params[3] |= mc_enc(0, 8, res_req->type[8]);
+	cmd.params[3] |= mc_enc(8, 8, res_req->type[9]);
+	cmd.params[3] |= mc_enc(16, 8, res_req->type[10]);
+	cmd.params[3] |= mc_enc(24, 8, res_req->type[11]);
+	cmd.params[3] |= mc_enc(32, 8, res_req->type[12]);
+	cmd.params[3] |= mc_enc(40, 8, res_req->type[13]);
+	cmd.params[3] |= mc_enc(48, 8, res_req->type[14]);
+	cmd.params[3] |= mc_enc(56, 8, res_req->type[15]);
+
+	/* send command to mc*/
+	return mc_send_command(mc_io, &cmd);
+}
+
+int dprc_unassign(struct fsl_mc_io *mc_io,
+		  uint16_t token,
+		  int child_container_id,
+		  struct dprc_res_req *res_req)
+{
+	struct mc_command cmd = { 0 };
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPRC_CMDID_UNASSIGN,
+					  MC_CMD_PRI_LOW,
+					  token);
+	cmd.params[0] |= mc_enc(0, 32, child_container_id);
+	cmd.params[0] |= mc_enc(32, 32, res_req->options);
+	cmd.params[1] |= mc_enc(0, 32, res_req->num);
+	cmd.params[1] |= mc_enc(32, 32, res_req->id_base_align);
+	cmd.params[2] |= mc_enc(0, 8, res_req->type[0]);
+	cmd.params[2] |= mc_enc(8, 8, res_req->type[1]);
+	cmd.params[2] |= mc_enc(16, 8, res_req->type[2]);
+	cmd.params[2] |= mc_enc(24, 8, res_req->type[3]);
+	cmd.params[2] |= mc_enc(32, 8, res_req->type[4]);
+	cmd.params[2] |= mc_enc(40, 8, res_req->type[5]);
+	cmd.params[2] |= mc_enc(48, 8, res_req->type[6]);
+	cmd.params[2] |= mc_enc(56, 8, res_req->type[7]);
+	cmd.params[3] |= mc_enc(0, 8, res_req->type[8]);
+	cmd.params[3] |= mc_enc(8, 8, res_req->type[9]);
+	cmd.params[3] |= mc_enc(16, 8, res_req->type[10]);
+	cmd.params[3] |= mc_enc(24, 8, res_req->type[11]);
+	cmd.params[3] |= mc_enc(32, 8, res_req->type[12]);
+	cmd.params[3] |= mc_enc(40, 8, res_req->type[13]);
+	cmd.params[3] |= mc_enc(48, 8, res_req->type[14]);
+	cmd.params[3] |= mc_enc(56, 8, res_req->type[15]);
+
+	/* send command to mc*/
+	return mc_send_command(mc_io, &cmd);
+}
+
+int dprc_get_pool_count(struct fsl_mc_io *mc_io,
+			uint16_t token,
+			int *pool_count)
+{
+	struct mc_command cmd = { 0 };
+	int err;
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_POOL_COUNT,
+					  MC_CMD_PRI_LOW, token);
+
+	/* send command to mc*/
+	err = mc_send_command(mc_io, &cmd);
+	if (err)
+		return err;
+
+	/* retrieve response parameters */
+	*pool_count = mc_dec(cmd.params[0], 0, 32);
+
+	return 0;
+}
+
+int dprc_get_pool(struct fsl_mc_io *mc_io,
+		  uint16_t token,
+		  int pool_index,
+		  char *type)
+{
+	struct mc_command cmd = { 0 };
+	int err;
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_POOL,
+					  MC_CMD_PRI_LOW,
+					  token);
+	cmd.params[0] |= mc_enc(0, 32, pool_index);
+
+	/* send command to mc*/
+	err = mc_send_command(mc_io, &cmd);
+	if (err)
+		return err;
+
+	/* retrieve response parameters */
+	type[0] = mc_dec(cmd.params[1], 0, 8);
+	type[1] = mc_dec(cmd.params[1], 8, 8);
+	type[2] = mc_dec(cmd.params[1], 16, 8);
+	type[3] = mc_dec(cmd.params[1], 24, 8);
+	type[4] = mc_dec(cmd.params[1], 32, 8);
+	type[5] = mc_dec(cmd.params[1], 40, 8);
+	type[6] = mc_dec(cmd.params[1], 48, 8);
+	type[7] = mc_dec(cmd.params[1], 56, 8);
+	type[8] = mc_dec(cmd.params[2], 0, 8);
+	type[9] = mc_dec(cmd.params[2], 8, 8);
+	type[10] = mc_dec(cmd.params[2], 16, 8);
+	type[11] = mc_dec(cmd.params[2], 24, 8);
+	type[12] = mc_dec(cmd.params[2], 32, 8);
+	type[13] = mc_dec(cmd.params[2], 40, 8);
+	type[14] = mc_dec(cmd.params[2], 48, 8);
+	type[15] = '\0';
+
+	return 0;
+}
+
+int dprc_get_obj_count(struct fsl_mc_io *mc_io, uint16_t token, int *obj_count)
+{
+	struct mc_command cmd = { 0 };
+	int err;
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_OBJ_COUNT,
+					  MC_CMD_PRI_LOW, token);
+
+	/* send command to mc*/
+	err = mc_send_command(mc_io, &cmd);
+	if (err)
+		return err;
+
+	/* retrieve response parameters */
+	*obj_count = mc_dec(cmd.params[0], 32, 32);
+
+	return 0;
+}
+EXPORT_SYMBOL(dprc_get_obj_count);
+
+int dprc_get_obj(struct fsl_mc_io *mc_io,
+		 uint16_t token,
+		 int obj_index,
+		 struct dprc_obj_desc *obj_desc)
+{
+	struct mc_command cmd = { 0 };
+	int err;
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_OBJ,
+					  MC_CMD_PRI_LOW,
+					  token);
+	cmd.params[0] |= mc_enc(0, 32, obj_index);
+
+	/* send command to mc*/
+	err = mc_send_command(mc_io, &cmd);
+	if (err)
+		return err;
+
+	/* retrieve response parameters */
+	obj_desc->id = mc_dec(cmd.params[0], 32, 32);
+	obj_desc->vendor = mc_dec(cmd.params[1], 0, 16);
+	obj_desc->irq_count = mc_dec(cmd.params[1], 16, 8);
+	obj_desc->region_count = mc_dec(cmd.params[1], 24, 8);
+	obj_desc->state = mc_dec(cmd.params[1], 32, 32);
+	obj_desc->ver_major = mc_dec(cmd.params[2], 0, 16);
+	obj_desc->ver_minor = mc_dec(cmd.params[2], 16, 16);
+	obj_desc->type[0] = mc_dec(cmd.params[3], 0, 8);
+	obj_desc->type[1] = mc_dec(cmd.params[3], 8, 8);
+	obj_desc->type[2] = mc_dec(cmd.params[3], 16, 8);
+	obj_desc->type[3] = mc_dec(cmd.params[3], 24, 8);
+	obj_desc->type[4] = mc_dec(cmd.params[3], 32, 8);
+	obj_desc->type[5] = mc_dec(cmd.params[3], 40, 8);
+	obj_desc->type[6] = mc_dec(cmd.params[3], 48, 8);
+	obj_desc->type[7] = mc_dec(cmd.params[3], 56, 8);
+	obj_desc->type[8] = mc_dec(cmd.params[4], 0, 8);
+	obj_desc->type[9] = mc_dec(cmd.params[4], 8, 8);
+	obj_desc->type[10] = mc_dec(cmd.params[4], 16, 8);
+	obj_desc->type[11] = mc_dec(cmd.params[4], 24, 8);
+	obj_desc->type[12] = mc_dec(cmd.params[4], 32, 8);
+	obj_desc->type[13] = mc_dec(cmd.params[4], 40, 8);
+	obj_desc->type[14] = mc_dec(cmd.params[4], 48, 8);
+	obj_desc->type[15] = '\0';
+
+	return 0;
+}
+EXPORT_SYMBOL(dprc_get_obj);
+
+int dprc_get_res_count(struct fsl_mc_io *mc_io,
+		       uint16_t token,
+		       char *type,
+		       int *res_count)
+{
+	struct mc_command cmd = { 0 };
+	int err;
+
+	*res_count = 0;
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_RES_COUNT,
+					  MC_CMD_PRI_LOW, token);
+	cmd.params[1] |= mc_enc(0, 8, type[0]);
+	cmd.params[1] |= mc_enc(8, 8, type[1]);
+	cmd.params[1] |= mc_enc(16, 8, type[2]);
+	cmd.params[1] |= mc_enc(24, 8, type[3]);
+	cmd.params[1] |= mc_enc(32, 8, type[4]);
+	cmd.params[1] |= mc_enc(40, 8, type[5]);
+	cmd.params[1] |= mc_enc(48, 8, type[6]);
+	cmd.params[1] |= mc_enc(56, 8, type[7]);
+	cmd.params[2] |= mc_enc(0, 8, type[8]);
+	cmd.params[2] |= mc_enc(8, 8, type[9]);
+	cmd.params[2] |= mc_enc(16, 8, type[10]);
+	cmd.params[2] |= mc_enc(24, 8, type[11]);
+	cmd.params[2] |= mc_enc(32, 8, type[12]);
+	cmd.params[2] |= mc_enc(40, 8, type[13]);
+	cmd.params[2] |= mc_enc(48, 8, type[14]);
+	cmd.params[2] |= mc_enc(56, 8, '\0');
+
+	/* send command to mc*/
+	err = mc_send_command(mc_io, &cmd);
+	if (err)
+		return err;
+
+	/* retrieve response parameters */
+	*res_count = mc_dec(cmd.params[0], 0, 32);
+
+	return 0;
+}
+EXPORT_SYMBOL(dprc_get_res_count);
+
+int dprc_get_res_ids(struct fsl_mc_io *mc_io,
+		     uint16_t token,
+		     char *type,
+		     struct dprc_res_ids_range_desc *range_desc)
+{
+	struct mc_command cmd = { 0 };
+	int err;
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_RES_IDS,
+					  MC_CMD_PRI_LOW, token);
+	cmd.params[0] |= mc_enc(42, 7, range_desc->iter_status);
+	cmd.params[1] |= mc_enc(0, 32, range_desc->base_id);
+	cmd.params[1] |= mc_enc(32, 32, range_desc->last_id);
+	cmd.params[2] |= mc_enc(0, 8, type[0]);
+	cmd.params[2] |= mc_enc(8, 8, type[1]);
+	cmd.params[2] |= mc_enc(16, 8, type[2]);
+	cmd.params[2] |= mc_enc(24, 8, type[3]);
+	cmd.params[2] |= mc_enc(32, 8, type[4]);
+	cmd.params[2] |= mc_enc(40, 8, type[5]);
+	cmd.params[2] |= mc_enc(48, 8, type[6]);
+	cmd.params[2] |= mc_enc(56, 8, type[7]);
+	cmd.params[3] |= mc_enc(0, 8, type[8]);
+	cmd.params[3] |= mc_enc(8, 8, type[9]);
+	cmd.params[3] |= mc_enc(16, 8, type[10]);
+	cmd.params[3] |= mc_enc(24, 8, type[11]);
+	cmd.params[3] |= mc_enc(32, 8, type[12]);
+	cmd.params[3] |= mc_enc(40, 8, type[13]);
+	cmd.params[3] |= mc_enc(48, 8, type[14]);
+	cmd.params[3] |= mc_enc(56, 8, '\0');
+
+	/* send command to mc*/
+	err = mc_send_command(mc_io, &cmd);
+	if (err)
+		return err;
+
+	/* retrieve response parameters */
+	range_desc->iter_status = mc_dec(cmd.params[0], 42, 7);
+	range_desc->base_id = mc_dec(cmd.params[1], 0, 32);
+	range_desc->last_id = mc_dec(cmd.params[1], 32, 32);
+
+	return 0;
+}
+EXPORT_SYMBOL(dprc_get_res_ids);
+
+int dprc_get_portal_paddr(struct fsl_mc_io *mc_io,
+			  uint16_t token,
+			  int portal_id,
+			  uint64_t *portal_addr)
+{
+	struct mc_command cmd = { 0 };
+	int err;
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_PORTAL_PADDR,
+					  MC_CMD_PRI_LOW, token);
+	cmd.params[0] |= mc_enc(0, 32, portal_id);
+
+	/* send command to mc*/
+	err = mc_send_command(mc_io, &cmd);
+	if (err)
+		return err;
+
+	/* retrieve response parameters */
+	*portal_addr = mc_dec(cmd.params[1], 0, 64);
+
+	return 0;
+}
+EXPORT_SYMBOL(dprc_get_portal_paddr);
+
+int dprc_get_obj_region(struct fsl_mc_io *mc_io,
+			uint16_t token,
+			char *obj_type,
+			int obj_id,
+			uint8_t region_index,
+			struct dprc_region_desc *region_desc)
+{
+	struct mc_command cmd = { 0 };
+	int err;
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_OBJ_REG,
+					  MC_CMD_PRI_LOW, token);
+	cmd.params[0] |= mc_enc(0, 32, obj_id);
+	cmd.params[0] |= mc_enc(48, 8, region_index);
+	cmd.params[3] |= mc_enc(0, 8, obj_type[0]);
+	cmd.params[3] |= mc_enc(8, 8, obj_type[1]);
+	cmd.params[3] |= mc_enc(16, 8, obj_type[2]);
+	cmd.params[3] |= mc_enc(24, 8, obj_type[3]);
+	cmd.params[3] |= mc_enc(32, 8, obj_type[4]);
+	cmd.params[3] |= mc_enc(40, 8, obj_type[5]);
+	cmd.params[3] |= mc_enc(48, 8, obj_type[6]);
+	cmd.params[3] |= mc_enc(56, 8, obj_type[7]);
+	cmd.params[4] |= mc_enc(0, 8, obj_type[8]);
+	cmd.params[4] |= mc_enc(8, 8, obj_type[9]);
+	cmd.params[4] |= mc_enc(16, 8, obj_type[10]);
+	cmd.params[4] |= mc_enc(24, 8, obj_type[11]);
+	cmd.params[4] |= mc_enc(32, 8, obj_type[12]);
+	cmd.params[4] |= mc_enc(40, 8, obj_type[13]);
+	cmd.params[4] |= mc_enc(48, 8, obj_type[14]);
+	cmd.params[4] |= mc_enc(56, 8, '\0');
+
+	/* send command to mc*/
+	err = mc_send_command(mc_io, &cmd);
+	if (err)
+		return err;
+
+	/* retrieve response parameters */
+	region_desc->base_paddr = mc_dec(cmd.params[1], 0, 64);
+	region_desc->size = mc_dec(cmd.params[2], 0, 32);
+
+	return 0;
+}
+EXPORT_SYMBOL(dprc_get_obj_region);
+
+int dprc_connect(struct fsl_mc_io *mc_io,
+		 uint16_t token,
+		 const struct dprc_endpoint *endpoint1,
+		 const struct dprc_endpoint *endpoint2)
+{
+	struct mc_command cmd = { 0 };
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPRC_CMDID_CONNECT,
+					  MC_CMD_PRI_LOW,
+					  token);
+	cmd.params[0] |= mc_enc(0, 32, endpoint1->id);
+	cmd.params[0] |= mc_enc(32, 32, endpoint1->interface_id);
+	cmd.params[1] |= mc_enc(0, 32, endpoint2->id);
+	cmd.params[1] |= mc_enc(32, 32, endpoint2->interface_id);
+	cmd.params[2] |= mc_enc(0, 8, endpoint1->type[0]);
+	cmd.params[2] |= mc_enc(8, 8, endpoint1->type[1]);
+	cmd.params[2] |= mc_enc(16, 8, endpoint1->type[2]);
+	cmd.params[2] |= mc_enc(24, 8, endpoint1->type[3]);
+	cmd.params[2] |= mc_enc(32, 8, endpoint1->type[4]);
+	cmd.params[2] |= mc_enc(40, 8, endpoint1->type[5]);
+	cmd.params[2] |= mc_enc(48, 8, endpoint1->type[6]);
+	cmd.params[2] |= mc_enc(56, 8, endpoint1->type[7]);
+	cmd.params[3] |= mc_enc(0, 8, endpoint1->type[8]);
+	cmd.params[3] |= mc_enc(8, 8, endpoint1->type[9]);
+	cmd.params[3] |= mc_enc(16, 8, endpoint1->type[10]);
+	cmd.params[3] |= mc_enc(24, 8, endpoint1->type[11]);
+	cmd.params[3] |= mc_enc(32, 8, endpoint1->type[12]);
+	cmd.params[3] |= mc_enc(40, 8, endpoint1->type[13]);
+	cmd.params[3] |= mc_enc(48, 8, endpoint1->type[14]);
+	cmd.params[3] |= mc_enc(56, 8, endpoint1->type[15]);
+	cmd.params[5] |= mc_enc(0, 8, endpoint2->type[0]);
+	cmd.params[5] |= mc_enc(8, 8, endpoint2->type[1]);
+	cmd.params[5] |= mc_enc(16, 8, endpoint2->type[2]);
+	cmd.params[5] |= mc_enc(24, 8, endpoint2->type[3]);
+	cmd.params[5] |= mc_enc(32, 8, endpoint2->type[4]);
+	cmd.params[5] |= mc_enc(40, 8, endpoint2->type[5]);
+	cmd.params[5] |= mc_enc(48, 8, endpoint2->type[6]);
+	cmd.params[5] |= mc_enc(56, 8, endpoint2->type[7]);
+	cmd.params[6] |= mc_enc(0, 8, endpoint2->type[8]);
+	cmd.params[6] |= mc_enc(8, 8, endpoint2->type[9]);
+	cmd.params[6] |= mc_enc(16, 8, endpoint2->type[10]);
+	cmd.params[6] |= mc_enc(24, 8, endpoint2->type[11]);
+	cmd.params[6] |= mc_enc(32, 8, endpoint2->type[12]);
+	cmd.params[6] |= mc_enc(40, 8, endpoint2->type[13]);
+	cmd.params[6] |= mc_enc(48, 8, endpoint2->type[14]);
+	cmd.params[6] |= mc_enc(56, 8, endpoint2->type[15]);
+
+	/* send command to mc*/
+	return mc_send_command(mc_io, &cmd);
+}
+
+int dprc_disconnect(struct fsl_mc_io *mc_io,
+		    uint16_t token,
+		    const struct dprc_endpoint *endpoint)
+{
+	struct mc_command cmd = { 0 };
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPRC_CMDID_DISCONNECT,
+					  MC_CMD_PRI_LOW,
+					  token);
+	cmd.params[0] |= mc_enc(0, 32, endpoint->id);
+	cmd.params[0] |= mc_enc(32, 32, endpoint->interface_id);
+	cmd.params[1] |= mc_enc(0, 8, endpoint->type[0]);
+	cmd.params[1] |= mc_enc(8, 8, endpoint->type[1]);
+	cmd.params[1] |= mc_enc(16, 8, endpoint->type[2]);
+	cmd.params[1] |= mc_enc(24, 8, endpoint->type[3]);
+	cmd.params[1] |= mc_enc(32, 8, endpoint->type[4]);
+	cmd.params[1] |= mc_enc(40, 8, endpoint->type[5]);
+	cmd.params[1] |= mc_enc(48, 8, endpoint->type[6]);
+	cmd.params[1] |= mc_enc(56, 8, endpoint->type[7]);
+	cmd.params[2] |= mc_enc(0, 8, endpoint->type[8]);
+	cmd.params[2] |= mc_enc(8, 8, endpoint->type[9]);
+	cmd.params[2] |= mc_enc(16, 8, endpoint->type[10]);
+	cmd.params[2] |= mc_enc(24, 8, endpoint->type[11]);
+	cmd.params[2] |= mc_enc(32, 8, endpoint->type[12]);
+	cmd.params[2] |= mc_enc(40, 8, endpoint->type[13]);
+	cmd.params[2] |= mc_enc(48, 8, endpoint->type[14]);
+	cmd.params[2] |= mc_enc(56, 8, endpoint->type[15]);
+
+	/* send command to mc*/
+	return mc_send_command(mc_io, &cmd);
+}
+
+int dprc_get_connection(struct fsl_mc_io *mc_io,
+			uint16_t token,
+					const struct dprc_endpoint *endpoint1,
+					struct dprc_endpoint *endpoint2,
+					int *state)
+{
+	struct mc_command cmd = { 0 };
+	int err;
+
+	/* prepare command */
+	cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_CONNECTION,
+					  MC_CMD_PRI_LOW,
+					  token);
+	cmd.params[0] |= mc_enc(0, 32, endpoint1->id);
+	cmd.params[0] |= mc_enc(32, 32, endpoint1->interface_id);
+	cmd.params[1] |= mc_enc(0, 8, endpoint1->type[0]);
+	cmd.params[1] |= mc_enc(8, 8, endpoint1->type[1]);
+	cmd.params[1] |= mc_enc(16, 8, endpoint1->type[2]);
+	cmd.params[1] |= mc_enc(24, 8, endpoint1->type[3]);
+	cmd.params[1] |= mc_enc(32, 8, endpoint1->type[4]);
+	cmd.params[1] |= mc_enc(40, 8, endpoint1->type[5]);
+	cmd.params[1] |= mc_enc(48, 8, endpoint1->type[6]);
+	cmd.params[1] |= mc_enc(56, 8, endpoint1->type[7]);
+	cmd.params[2] |= mc_enc(0, 8, endpoint1->type[8]);
+	cmd.params[2] |= mc_enc(8, 8, endpoint1->type[9]);
+	cmd.params[2] |= mc_enc(16, 8, endpoint1->type[10]);
+	cmd.params[2] |= mc_enc(24, 8, endpoint1->type[11]);
+	cmd.params[2] |= mc_enc(32, 8, endpoint1->type[12]);
+	cmd.params[2] |= mc_enc(40, 8, endpoint1->type[13]);
+	cmd.params[2] |= mc_enc(48, 8, endpoint1->type[14]);
+	cmd.params[2] |= mc_enc(56, 8, endpoint1->type[15]);
+
+	/* send command to mc*/
+	err = mc_send_command(mc_io, &cmd);
+	if (err)
+		return err;
+
+	/* retrieve response parameters */
+	endpoint2->id = mc_dec(cmd.params[3], 0, 32);
+	endpoint2->interface_id = mc_dec(cmd.params[3], 32, 32);
+	endpoint2->type[0] = mc_dec(cmd.params[4], 0, 8);
+	endpoint2->type[1] = mc_dec(cmd.params[4], 8, 8);
+	endpoint2->type[2] = mc_dec(cmd.params[4], 16, 8);
+	endpoint2->type[3] = mc_dec(cmd.params[4], 24, 8);
+	endpoint2->type[4] = mc_dec(cmd.params[4], 32, 8);
+	endpoint2->type[5] = mc_dec(cmd.params[4], 40, 8);
+	endpoint2->type[6] = mc_dec(cmd.params[4], 48, 8);
+	endpoint2->type[7] = mc_dec(cmd.params[4], 56, 8);
+	endpoint2->type[8] = mc_dec(cmd.params[5], 0, 8);
+	endpoint2->type[9] = mc_dec(cmd.params[5], 8, 8);
+	endpoint2->type[10] = mc_dec(cmd.params[5], 16, 8);
+	endpoint2->type[11] = mc_dec(cmd.params[5], 24, 8);
+	endpoint2->type[12] = mc_dec(cmd.params[5], 32, 8);
+	endpoint2->type[13] = mc_dec(cmd.params[5], 40, 8);
+	endpoint2->type[14] = mc_dec(cmd.params[5], 48, 8);
+	endpoint2->type[15] = mc_dec(cmd.params[5], 56, 8);
+	*state = mc_dec(cmd.params[6], 0, 32);
+
+	return 0;
+}
diff --git a/drivers/staging/fsl-mc/bus/mc-allocator.c b/drivers/staging/fsl-mc/bus/mc-allocator.c
new file mode 100644
index 0000000..e36235d
--- /dev/null
+++ b/drivers/staging/fsl-mc/bus/mc-allocator.c
@@ -0,0 +1,573 @@
+/*
+ * Freescale MC object device allocator driver
+ *
+ * Copyright (C) 2013 Freescale Semiconductor, Inc.
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include "../include/mc-private.h"
+#include "../include/mc-sys.h"
+#include <linux/module.h>
+#include "../include/dpbp-cmd.h"
+#include "../include/dpcon-cmd.h"
+#include "dpmcp-cmd.h"
+#include "dpmcp.h"
+
+/**
+ * fsl_mc_resource_pool_add_device - add allocatable device to a resource
+ * pool of a given MC bus
+ *
+ * @mc_bus: pointer to the MC bus
+ * @pool_type: MC bus pool type
+ * @mc_dev: Pointer to allocatable MC object device
+ *
+ * It adds an allocatable MC object device to a container's resource pool of
+ * the given resource type
+ */
+static int __must_check fsl_mc_resource_pool_add_device(struct fsl_mc_bus
+								*mc_bus,
+							enum fsl_mc_pool_type
+								pool_type,
+							struct fsl_mc_device
+								*mc_dev)
+{
+	struct fsl_mc_resource_pool *res_pool;
+	struct fsl_mc_resource *resource;
+	struct fsl_mc_device *mc_bus_dev = &mc_bus->mc_dev;
+	int error = -EINVAL;
+	bool mutex_locked = false;
+
+	if (WARN_ON(pool_type < 0 || pool_type >= FSL_MC_NUM_POOL_TYPES))
+		goto out;
+	if (WARN_ON(!FSL_MC_IS_ALLOCATABLE(mc_dev->obj_desc.type)))
+		goto out;
+	if (WARN_ON(mc_dev->resource))
+		goto out;
+
+	res_pool = &mc_bus->resource_pools[pool_type];
+	if (WARN_ON(res_pool->type != pool_type))
+		goto out;
+	if (WARN_ON(res_pool->mc_bus != mc_bus))
+		goto out;
+
+	mutex_lock(&res_pool->mutex);
+	mutex_locked = true;
+
+	if (WARN_ON(res_pool->max_count < 0))
+		goto out;
+	if (WARN_ON(res_pool->free_count < 0 ||
+		    res_pool->free_count > res_pool->max_count))
+		goto out;
+
+	resource = devm_kzalloc(&mc_bus_dev->dev, sizeof(*resource),
+				GFP_KERNEL);
+	if (!resource) {
+		error = -ENOMEM;
+		dev_err(&mc_bus_dev->dev,
+			"Failed to allocate memory for fsl_mc_resource\n");
+		goto out;
+	}
+
+	resource->type = pool_type;
+	resource->id = mc_dev->obj_desc.id;
+	resource->data = mc_dev;
+	resource->parent_pool = res_pool;
+	INIT_LIST_HEAD(&resource->node);
+	list_add_tail(&resource->node, &res_pool->free_list);
+	mc_dev->resource = resource;
+	res_pool->free_count++;
+	res_pool->max_count++;
+	error = 0;
+out:
+	if (mutex_locked)
+		mutex_unlock(&res_pool->mutex);
+
+	return error;
+}
+
+/**
+ * fsl_mc_resource_pool_remove_device - remove an allocatable device from a
+ * resource pool
+ *
+ * @mc_dev: Pointer to allocatable MC object device
+ *
+ * It permanently removes an allocatable MC object device from the resource
+ * pool, the device is currently in, as long as it is in the pool's free list.
+ */
+static int __must_check fsl_mc_resource_pool_remove_device(struct fsl_mc_device
+								   *mc_dev)
+{
+	struct fsl_mc_device *mc_bus_dev;
+	struct fsl_mc_bus *mc_bus;
+	struct fsl_mc_resource_pool *res_pool;
+	struct fsl_mc_resource *resource;
+	int error = -EINVAL;
+	bool mutex_locked = false;
+
+	if (WARN_ON(!FSL_MC_IS_ALLOCATABLE(mc_dev->obj_desc.type)))
+		goto out;
+
+	resource = mc_dev->resource;
+	if (WARN_ON(resource->data != mc_dev))
+		goto out;
+
+	mc_bus_dev = to_fsl_mc_device(mc_dev->dev.parent);
+	mc_bus = to_fsl_mc_bus(mc_bus_dev);
+	res_pool = resource->parent_pool;
+	if (WARN_ON(res_pool != &mc_bus->resource_pools[resource->type]))
+		goto out;
+
+	mutex_lock(&res_pool->mutex);
+	mutex_locked = true;
+
+	if (WARN_ON(res_pool->max_count <= 0))
+		goto out;
+	if (WARN_ON(res_pool->free_count <= 0 ||
+		    res_pool->free_count > res_pool->max_count))
+		goto out;
+
+	/*
+	 * If the device is currently allocated, its resource is not
+	 * in the free list and thus, the device cannot be removed.
+	 */
+	if (list_empty(&resource->node)) {
+		error = -EBUSY;
+		dev_err(&mc_bus_dev->dev,
+			"Device %s cannot be removed from resource pool\n",
+			dev_name(&mc_dev->dev));
+		goto out;
+	}
+
+	list_del(&resource->node);
+	INIT_LIST_HEAD(&resource->node);
+	res_pool->free_count--;
+	res_pool->max_count--;
+
+	devm_kfree(&mc_bus_dev->dev, resource);
+	mc_dev->resource = NULL;
+	error = 0;
+out:
+	if (mutex_locked)
+		mutex_unlock(&res_pool->mutex);
+
+	return error;
+}
+
+static const char *const fsl_mc_pool_type_strings[] = {
+	[FSL_MC_POOL_DPMCP] = "dpmcp",
+	[FSL_MC_POOL_DPBP] = "dpbp",
+	[FSL_MC_POOL_DPCON] = "dpcon",
+};
+
+static int __must_check object_type_to_pool_type(const char *object_type,
+						 enum fsl_mc_pool_type
+								*pool_type)
+{
+	unsigned int i;
+
+	for (i = 0; i < ARRAY_SIZE(fsl_mc_pool_type_strings); i++) {
+		if (strcmp(object_type, fsl_mc_pool_type_strings[i]) == 0) {
+			*pool_type = i;
+			return 0;
+		}
+	}
+
+	return -EINVAL;
+}
+
+int __must_check fsl_mc_resource_allocate(struct fsl_mc_bus *mc_bus,
+					  enum fsl_mc_pool_type pool_type,
+					  struct fsl_mc_resource **new_resource)
+{
+	struct fsl_mc_resource_pool *res_pool;
+	struct fsl_mc_resource *resource;
+	struct fsl_mc_device *mc_bus_dev = &mc_bus->mc_dev;
+	int error = -EINVAL;
+	bool mutex_locked = false;
+
+	BUILD_BUG_ON(ARRAY_SIZE(fsl_mc_pool_type_strings) !=
+		     FSL_MC_NUM_POOL_TYPES);
+
+	*new_resource = NULL;
+	if (WARN_ON(pool_type < 0 || pool_type >= FSL_MC_NUM_POOL_TYPES))
+		goto error;
+
+	res_pool = &mc_bus->resource_pools[pool_type];
+	if (WARN_ON(res_pool->mc_bus != mc_bus))
+		goto error;
+
+	mutex_lock(&res_pool->mutex);
+	mutex_locked = true;
+	resource = list_first_entry_or_null(&res_pool->free_list,
+					    struct fsl_mc_resource, node);
+
+	if (!resource) {
+		WARN_ON(res_pool->free_count != 0);
+		error = -ENXIO;
+		dev_err(&mc_bus_dev->dev,
+			"No more resources of type %s left\n",
+			fsl_mc_pool_type_strings[pool_type]);
+		goto error;
+	}
+
+	if (WARN_ON(resource->type != pool_type))
+		goto error;
+	if (WARN_ON(resource->parent_pool != res_pool))
+		goto error;
+	if (WARN_ON(res_pool->free_count <= 0 ||
+		    res_pool->free_count > res_pool->max_count))
+		goto error;
+
+	list_del(&resource->node);
+	INIT_LIST_HEAD(&resource->node);
+
+	res_pool->free_count--;
+	mutex_unlock(&res_pool->mutex);
+	*new_resource = resource;
+	return 0;
+error:
+	if (mutex_locked)
+		mutex_unlock(&res_pool->mutex);
+
+	return error;
+}
+EXPORT_SYMBOL_GPL(fsl_mc_resource_allocate);
+
+void fsl_mc_resource_free(struct fsl_mc_resource *resource)
+{
+	struct fsl_mc_resource_pool *res_pool;
+	bool mutex_locked = false;
+
+	res_pool = resource->parent_pool;
+	if (WARN_ON(resource->type != res_pool->type))
+		goto out;
+
+	mutex_lock(&res_pool->mutex);
+	mutex_locked = true;
+	if (WARN_ON(res_pool->free_count < 0 ||
+		    res_pool->free_count >= res_pool->max_count))
+		goto out;
+
+	if (WARN_ON(!list_empty(&resource->node)))
+		goto out;
+
+	list_add_tail(&resource->node, &res_pool->free_list);
+	res_pool->free_count++;
+out:
+	if (mutex_locked)
+		mutex_unlock(&res_pool->mutex);
+}
+EXPORT_SYMBOL_GPL(fsl_mc_resource_free);
+
+/**
+ * fsl_mc_portal_allocate - Allocates an MC portal
+ *
+ * @mc_dev: MC device for which the MC portal is to be allocated
+ * @mc_io_flags: Flags for the fsl_mc_io object that wraps the allocated
+ * MC portal.
+ * @new_mc_io: Pointer to area where the pointer to the fsl_mc_io object
+ * that wraps the allocated MC portal is to be returned
+ *
+ * This function allocates an MC portal from the device's parent DPRC,
+ * from the corresponding MC bus' pool of MC portals and wraps
+ * it in a new fsl_mc_io object. If 'mc_dev' is a DPRC itself, the
+ * portal is allocated from its own MC bus.
+ */
+int __must_check fsl_mc_portal_allocate(struct fsl_mc_device *mc_dev,
+					uint16_t mc_io_flags,
+					struct fsl_mc_io **new_mc_io)
+{
+	struct fsl_mc_device *mc_bus_dev;
+	struct fsl_mc_bus *mc_bus;
+	phys_addr_t mc_portal_phys_addr;
+	size_t mc_portal_size;
+	struct fsl_mc_device *mc_adev;
+	int error = -EINVAL;
+	struct fsl_mc_resource *resource = NULL;
+	struct fsl_mc_io *mc_io = NULL;
+
+	if (mc_dev->flags & FSL_MC_IS_DPRC) {
+		mc_bus_dev = mc_dev;
+	} else {
+		if (WARN_ON(mc_dev->dev.parent->bus != &fsl_mc_bus_type))
+			return error;
+
+		mc_bus_dev = to_fsl_mc_device(mc_dev->dev.parent);
+	}
+
+	mc_bus = to_fsl_mc_bus(mc_bus_dev);
+	*new_mc_io = NULL;
+	error = fsl_mc_resource_allocate(mc_bus, FSL_MC_POOL_DPMCP, &resource);
+	if (error < 0)
+		return error;
+
+	mc_adev = resource->data;
+	if (WARN_ON(!mc_adev))
+		goto error_cleanup_resource;
+
+	if (WARN_ON(mc_adev->obj_desc.region_count == 0))
+		goto error_cleanup_resource;
+
+	mc_portal_phys_addr = mc_adev->regions[0].start;
+	mc_portal_size = mc_adev->regions[0].end -
+			 mc_adev->regions[0].start + 1;
+
+	if (WARN_ON(mc_portal_size != mc_bus_dev->mc_io->portal_size))
+		goto error_cleanup_resource;
+
+	error = fsl_create_mc_io(&mc_bus_dev->dev,
+				 mc_portal_phys_addr,
+				 mc_portal_size, resource,
+				 mc_io_flags, &mc_io);
+	if (error < 0)
+		goto error_cleanup_resource;
+
+	*new_mc_io = mc_io;
+	return 0;
+
+error_cleanup_resource:
+	fsl_mc_resource_free(resource);
+	return error;
+}
+EXPORT_SYMBOL_GPL(fsl_mc_portal_allocate);
+
+/**
+ * fsl_mc_portal_free - Returns an MC portal to the pool of free MC portals
+ * of a given MC bus
+ *
+ * @mc_io: Pointer to the fsl_mc_io object that wraps the MC portal to free
+ */
+void fsl_mc_portal_free(struct fsl_mc_io *mc_io)
+{
+	struct fsl_mc_resource *resource;
+
+	resource = mc_io->resource;
+	if (WARN_ON(resource->type != FSL_MC_POOL_DPMCP))
+		return;
+	if (WARN_ON(!resource->data))
+		return;
+
+	fsl_destroy_mc_io(mc_io);
+	fsl_mc_resource_free(resource);
+}
+EXPORT_SYMBOL_GPL(fsl_mc_portal_free);
+
+/**
+ * fsl_mc_portal_reset - Resets the dpmcp object for a given fsl_mc_io object
+ *
+ * @mc_io: Pointer to the fsl_mc_io object that wraps the MC portal to free
+ */
+int fsl_mc_portal_reset(struct fsl_mc_io *mc_io)
+{
+	int error;
+	uint16_t token;
+	struct fsl_mc_resource *resource = mc_io->resource;
+	struct fsl_mc_device *mc_dev = resource->data;
+
+	if (WARN_ON(resource->type != FSL_MC_POOL_DPMCP))
+		return -EINVAL;
+
+	if (WARN_ON(!mc_dev))
+		return -EINVAL;
+
+	error = dpmcp_open(mc_io, mc_dev->obj_desc.id, &token);
+	if (error < 0) {
+		dev_err(&mc_dev->dev, "dpmcp_open() failed: %d\n", error);
+		return error;
+	}
+
+	error = dpmcp_reset(mc_io, token);
+	if (error < 0) {
+		dev_err(&mc_dev->dev, "dpmcp_reset() failed: %d\n", error);
+		return error;
+	}
+
+	error = dpmcp_close(mc_io, token);
+	if (error < 0) {
+		dev_err(&mc_dev->dev, "dpmcp_close() failed: %d\n", error);
+		return error;
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(fsl_mc_portal_reset);
+
+/**
+ * fsl_mc_object_allocate - Allocates a MC object device of the given
+ * pool type from a given MC bus
+ *
+ * @mc_dev: MC device for which the MC object device is to be allocated
+ * @pool_type: MC bus resource pool type
+ * @new_mc_dev: Pointer to area where the pointer to the allocated
+ * MC object device is to be returned
+ *
+ * This function allocates a MC object device from the device's parent DPRC,
+ * from the corresponding MC bus' pool of allocatable MC object devices of
+ * the given resource type. mc_dev cannot be a DPRC itself.
+ *
+ * NOTE: pool_type must be different from FSL_MC_POOL_MCP, since MC
+ * portals are allocated using fsl_mc_portal_allocate(), instead of
+ * this function.
+ */
+int __must_check fsl_mc_object_allocate(struct fsl_mc_device *mc_dev,
+					enum fsl_mc_pool_type pool_type,
+					struct fsl_mc_device **new_mc_adev)
+{
+	struct fsl_mc_device *mc_bus_dev;
+	struct fsl_mc_bus *mc_bus;
+	struct fsl_mc_device *mc_adev;
+	int error = -EINVAL;
+	struct fsl_mc_resource *resource = NULL;
+
+	*new_mc_adev = NULL;
+	if (WARN_ON(mc_dev->flags & FSL_MC_IS_DPRC))
+		goto error;
+
+	if (WARN_ON(mc_dev->dev.parent->bus != &fsl_mc_bus_type))
+		goto error;
+
+	if (WARN_ON(pool_type == FSL_MC_POOL_DPMCP))
+		goto error;
+
+	mc_bus_dev = to_fsl_mc_device(mc_dev->dev.parent);
+	mc_bus = to_fsl_mc_bus(mc_bus_dev);
+	error = fsl_mc_resource_allocate(mc_bus, pool_type, &resource);
+	if (error < 0)
+		goto error;
+
+	mc_adev = resource->data;
+	if (WARN_ON(!mc_adev))
+		goto error;
+
+	*new_mc_adev = mc_adev;
+	return 0;
+error:
+	if (resource)
+		fsl_mc_resource_free(resource);
+
+	return error;
+}
+EXPORT_SYMBOL_GPL(fsl_mc_object_allocate);
+
+/**
+ * fsl_mc_object_free - Returns an allocatable MC object device to the
+ * corresponding resource pool of a given MC bus.
+ *
+ * @mc_adev: Pointer to the MC object device
+ */
+void fsl_mc_object_free(struct fsl_mc_device *mc_adev)
+{
+	struct fsl_mc_resource *resource;
+
+	resource = mc_adev->resource;
+	if (WARN_ON(resource->type == FSL_MC_POOL_DPMCP))
+		return;
+	if (WARN_ON(resource->data != mc_adev))
+		return;
+
+	fsl_mc_resource_free(resource);
+}
+EXPORT_SYMBOL_GPL(fsl_mc_object_free);
+
+/**
+ * fsl_mc_allocator_probe - callback invoked when an allocatable device is
+ * being added to the system
+ */
+static int fsl_mc_allocator_probe(struct fsl_mc_device *mc_dev)
+{
+	enum fsl_mc_pool_type pool_type;
+	struct fsl_mc_device *mc_bus_dev;
+	struct fsl_mc_bus *mc_bus;
+	int error = -EINVAL;
+
+	if (WARN_ON(!FSL_MC_IS_ALLOCATABLE(mc_dev->obj_desc.type)))
+		goto error;
+
+	mc_bus_dev = to_fsl_mc_device(mc_dev->dev.parent);
+	if (WARN_ON(mc_bus_dev->dev.bus != &fsl_mc_bus_type))
+		goto error;
+
+	mc_bus = to_fsl_mc_bus(mc_bus_dev);
+	error = object_type_to_pool_type(mc_dev->obj_desc.type, &pool_type);
+	if (error < 0)
+		goto error;
+
+	error = fsl_mc_resource_pool_add_device(mc_bus, pool_type, mc_dev);
+	if (error < 0)
+		goto error;
+
+	dev_info(&mc_dev->dev,
+		 "Allocatable MC object device bound to fsl_mc_allocator driver");
+	return 0;
+error:
+
+	return error;
+}
+
+/**
+ * fsl_mc_allocator_remove - callback invoked when an allocatable device is
+ * being removed from the system
+ */
+static int fsl_mc_allocator_remove(struct fsl_mc_device *mc_dev)
+{
+	int error = -EINVAL;
+
+	if (WARN_ON(!FSL_MC_IS_ALLOCATABLE(mc_dev->obj_desc.type)))
+		goto out;
+
+	error = fsl_mc_resource_pool_remove_device(mc_dev);
+	if (error < 0)
+		goto out;
+
+	dev_info(&mc_dev->dev,
+		 "Allocatable MC object device unbound from fsl_mc_allocator driver");
+	error = 0;
+out:
+	return error;
+}
+
+static const struct fsl_mc_device_match_id match_id_table[] = {
+	{
+	 .vendor = FSL_MC_VENDOR_FREESCALE,
+	 .obj_type = "dpbp",
+	 .ver_major = DPBP_VER_MAJOR,
+	 .ver_minor = DPBP_VER_MINOR
+	},
+	{
+	 .vendor = FSL_MC_VENDOR_FREESCALE,
+	 .obj_type = "dpmcp",
+	 .ver_major = DPMCP_VER_MAJOR,
+	 .ver_minor = DPMCP_VER_MINOR
+	},
+	{
+	 .vendor = FSL_MC_VENDOR_FREESCALE,
+	 .obj_type = "dpcon",
+	 .ver_major = DPCON_VER_MAJOR,
+	 .ver_minor = DPCON_VER_MINOR
+	},
+	{.vendor = 0x0},
+};
+
+static struct fsl_mc_driver fsl_mc_allocator_driver = {
+	.driver = {
+		   .name = "fsl_mc_allocator",
+		   .owner = THIS_MODULE,
+		   .pm = NULL,
+		   },
+	.match_id_table = match_id_table,
+	.probe = fsl_mc_allocator_probe,
+	.remove = fsl_mc_allocator_remove,
+};
+
+int __init fsl_mc_allocator_driver_init(void)
+{
+	return fsl_mc_driver_register(&fsl_mc_allocator_driver);
+}
+
+void __exit fsl_mc_allocator_driver_exit(void)
+{
+	fsl_mc_driver_unregister(&fsl_mc_allocator_driver);
+}
diff --git a/drivers/staging/fsl-mc/bus/mc-bus.c b/drivers/staging/fsl-mc/bus/mc-bus.c
new file mode 100644
index 0000000..23512d0
--- /dev/null
+++ b/drivers/staging/fsl-mc/bus/mc-bus.c
@@ -0,0 +1,793 @@
+/*
+ * Freescale Management Complex (MC) bus driver
+ *
+ * Copyright (C) 2014 Freescale Semiconductor, Inc.
+ * Author: German Rivera <German.Rivera@freescale.com>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include "../include/mc-private.h"
+#include <linux/module.h>
+#include <linux/of_device.h>
+#include <linux/of_address.h>
+#include <linux/ioport.h>
+#include <linux/slab.h>
+#include <linux/limits.h>
+#include "../include/dpmng.h"
+#include "../include/mc-sys.h"
+#include "dprc-cmd.h"
+
+static struct kmem_cache *mc_dev_cache;
+
+/**
+ * fsl_mc_bus_match - device to driver matching callback
+ * @dev: the MC object device structure to match against
+ * @drv: the device driver to search for matching MC object device id
+ * structures
+ *
+ * Returns 1 on success, 0 otherwise.
+ */
+static int fsl_mc_bus_match(struct device *dev, struct device_driver *drv)
+{
+	const struct fsl_mc_device_match_id *id;
+	struct fsl_mc_device *mc_dev = to_fsl_mc_device(dev);
+	struct fsl_mc_driver *mc_drv = to_fsl_mc_driver(drv);
+	bool found = false;
+	bool major_version_mismatch = false;
+	bool minor_version_mismatch = false;
+
+	if (WARN_ON(!fsl_mc_bus_type.dev_root))
+		goto out;
+
+	if (!mc_drv->match_id_table)
+		goto out;
+
+	/*
+	 * If the object is not 'plugged' don't match.
+	 * Only exception is the root DPRC, which is a special case.
+	 */
+	if ((mc_dev->obj_desc.state & DPRC_OBJ_STATE_PLUGGED) == 0 &&
+	    &mc_dev->dev != fsl_mc_bus_type.dev_root)
+		goto out;
+
+	/*
+	 * Traverse the match_id table of the given driver, trying to find
+	 * a matching for the given MC object device.
+	 */
+	for (id = mc_drv->match_id_table; id->vendor != 0x0; id++) {
+		if (id->vendor == mc_dev->obj_desc.vendor &&
+		    strcmp(id->obj_type, mc_dev->obj_desc.type) == 0) {
+			if (id->ver_major == mc_dev->obj_desc.ver_major) {
+				found = true;
+				if (id->ver_minor != mc_dev->obj_desc.ver_minor)
+					minor_version_mismatch = true;
+			} else {
+				major_version_mismatch = true;
+			}
+
+			break;
+		}
+	}
+
+	if (major_version_mismatch) {
+		dev_warn(dev,
+			 "Major version mismatch: driver version %u.%u, MC object version %u.%u\n",
+			 id->ver_major, id->ver_minor,
+			 mc_dev->obj_desc.ver_major,
+			 mc_dev->obj_desc.ver_minor);
+	} else if (minor_version_mismatch) {
+		dev_warn(dev,
+			 "Minor version mismatch: driver version %u.%u, MC object version %u.%u\n",
+			 id->ver_major, id->ver_minor,
+			 mc_dev->obj_desc.ver_major,
+			 mc_dev->obj_desc.ver_minor);
+	}
+
+out:
+	dev_dbg(dev, "%smatched\n", found ? "" : "not ");
+	return found;
+}
+
+/**
+ * fsl_mc_bus_uevent - callback invoked when a device is added
+ */
+static int fsl_mc_bus_uevent(struct device *dev, struct kobj_uevent_env *env)
+{
+	pr_debug("%s invoked\n", __func__);
+	return 0;
+}
+
+struct bus_type fsl_mc_bus_type = {
+	.name = "fsl-mc",
+	.match = fsl_mc_bus_match,
+	.uevent = fsl_mc_bus_uevent,
+};
+EXPORT_SYMBOL_GPL(fsl_mc_bus_type);
+
+static int fsl_mc_driver_probe(struct device *dev)
+{
+	struct fsl_mc_driver *mc_drv;
+	struct fsl_mc_device *mc_dev = to_fsl_mc_device(dev);
+	int error;
+
+	if (WARN_ON(!dev->driver))
+		return -EINVAL;
+
+	mc_drv = to_fsl_mc_driver(dev->driver);
+	if (WARN_ON(!mc_drv->probe))
+		return -EINVAL;
+
+	error = mc_drv->probe(mc_dev);
+	if (error < 0) {
+		dev_err(dev, "MC object device probe callback failed: %d\n",
+			error);
+		return error;
+	}
+
+	return 0;
+}
+
+static int fsl_mc_driver_remove(struct device *dev)
+{
+	struct fsl_mc_driver *mc_drv = to_fsl_mc_driver(dev->driver);
+	struct fsl_mc_device *mc_dev = to_fsl_mc_device(dev);
+	int error;
+
+	if (WARN_ON(!dev->driver))
+		return -EINVAL;
+
+	error = mc_drv->remove(mc_dev);
+	if (error < 0) {
+		dev_err(dev,
+			"MC object device remove callback failed: %d\n",
+			error);
+		return error;
+	}
+
+	return 0;
+}
+
+static void fsl_mc_driver_shutdown(struct device *dev)
+{
+	struct fsl_mc_driver *mc_drv = to_fsl_mc_driver(dev->driver);
+	struct fsl_mc_device *mc_dev = to_fsl_mc_device(dev);
+
+	mc_drv->shutdown(mc_dev);
+}
+
+/**
+ * __fsl_mc_driver_register - registers a child device driver with the
+ * MC bus
+ *
+ * This function is implicitly invoked from the registration function of
+ * fsl_mc device drivers, which is generated by the
+ * module_fsl_mc_driver() macro.
+ */
+int __fsl_mc_driver_register(struct fsl_mc_driver *mc_driver,
+			     struct module *owner)
+{
+	int error;
+
+	mc_driver->driver.owner = owner;
+	mc_driver->driver.bus = &fsl_mc_bus_type;
+
+	if (mc_driver->probe)
+		mc_driver->driver.probe = fsl_mc_driver_probe;
+
+	if (mc_driver->remove)
+		mc_driver->driver.remove = fsl_mc_driver_remove;
+
+	if (mc_driver->shutdown)
+		mc_driver->driver.shutdown = fsl_mc_driver_shutdown;
+
+	error = driver_register(&mc_driver->driver);
+	if (error < 0) {
+		pr_err("driver_register() failed for %s: %d\n",
+		       mc_driver->driver.name, error);
+		return error;
+	}
+
+	pr_info("MC object device driver %s registered\n",
+		mc_driver->driver.name);
+	return 0;
+}
+EXPORT_SYMBOL_GPL(__fsl_mc_driver_register);
+
+/**
+ * fsl_mc_driver_unregister - unregisters a device driver from the
+ * MC bus
+ */
+void fsl_mc_driver_unregister(struct fsl_mc_driver *mc_driver)
+{
+	driver_unregister(&mc_driver->driver);
+}
+EXPORT_SYMBOL_GPL(fsl_mc_driver_unregister);
+
+static int get_dprc_icid(struct fsl_mc_io *mc_io,
+			 int container_id, uint16_t *icid)
+{
+	uint16_t dprc_handle;
+	struct dprc_attributes attr;
+	int error;
+
+	error = dprc_open(mc_io, container_id, &dprc_handle);
+	if (error < 0) {
+		pr_err("dprc_open() failed: %d\n", error);
+		return error;
+	}
+
+	memset(&attr, 0, sizeof(attr));
+	error = dprc_get_attributes(mc_io, dprc_handle, &attr);
+	if (error < 0) {
+		pr_err("dprc_get_attributes() failed: %d\n", error);
+		goto common_cleanup;
+	}
+
+	*icid = attr.icid;
+	error = 0;
+
+common_cleanup:
+	(void)dprc_close(mc_io, dprc_handle);
+	return error;
+}
+
+static int translate_mc_addr(uint64_t mc_addr, phys_addr_t *phys_addr)
+{
+	int i;
+	struct fsl_mc *mc = dev_get_drvdata(fsl_mc_bus_type.dev_root->parent);
+
+	if (mc->num_translation_ranges == 0) {
+		/*
+		 * Do identity mapping:
+		 */
+		*phys_addr = mc_addr;
+		return 0;
+	}
+
+	for (i = 0; i < mc->num_translation_ranges; i++) {
+		struct fsl_mc_addr_translation_range *range =
+			&mc->translation_ranges[i];
+
+		if (mc_addr >= range->start_mc_addr &&
+		    mc_addr < range->end_mc_addr) {
+			*phys_addr = range->start_phys_addr +
+				     (mc_addr - range->start_mc_addr);
+			return 0;
+		}
+	}
+
+	return -EFAULT;
+}
+
+static int fsl_mc_device_get_mmio_regions(struct fsl_mc_device *mc_dev,
+					  struct fsl_mc_device *mc_bus_dev)
+{
+	int i;
+	int error;
+	struct resource *regions;
+	struct dprc_obj_desc *obj_desc = &mc_dev->obj_desc;
+	struct device *parent_dev = mc_dev->dev.parent;
+
+	regions = kmalloc_array(obj_desc->region_count,
+				sizeof(regions[0]), GFP_KERNEL);
+	if (!regions)
+		return -ENOMEM;
+
+	for (i = 0; i < obj_desc->region_count; i++) {
+		struct dprc_region_desc region_desc;
+
+		error = dprc_get_obj_region(mc_bus_dev->mc_io,
+					    mc_bus_dev->mc_handle,
+					    obj_desc->type,
+					    obj_desc->id, i, &region_desc);
+		if (error < 0) {
+			dev_err(parent_dev,
+				"dprc_get_obj_region() failed: %d\n", error);
+			goto error_cleanup_regions;
+		}
+
+		WARN_ON(region_desc.base_paddr == 0x0);
+		WARN_ON(region_desc.size == 0);
+		error = translate_mc_addr(region_desc.base_paddr,
+					  &regions[i].start);
+		if (error < 0) {
+			dev_err(parent_dev,
+				"Invalid MC address: %#llx\n",
+				region_desc.base_paddr);
+			goto error_cleanup_regions;
+		}
+
+		regions[i].end = regions[i].start + region_desc.size - 1;
+		regions[i].name = "fsl-mc object MMIO region";
+		regions[i].flags = IORESOURCE_IO;
+	}
+
+	mc_dev->regions = regions;
+	return 0;
+
+error_cleanup_regions:
+	kfree(regions);
+	return error;
+}
+
+/**
+ * Add a newly discovered MC object device to be visible in Linux
+ */
+int fsl_mc_device_add(struct dprc_obj_desc *obj_desc,
+		      struct fsl_mc_io *mc_io,
+		      struct device *parent_dev,
+		      struct fsl_mc_device **new_mc_dev)
+{
+	int error;
+	struct fsl_mc_device *mc_dev = NULL;
+	struct fsl_mc_bus *mc_bus = NULL;
+	struct fsl_mc_device *parent_mc_dev;
+
+	if (parent_dev->bus == &fsl_mc_bus_type)
+		parent_mc_dev = to_fsl_mc_device(parent_dev);
+	else
+		parent_mc_dev = NULL;
+
+	if (strcmp(obj_desc->type, "dprc") == 0) {
+		/*
+		 * Allocate an MC bus device object:
+		 */
+		mc_bus = devm_kzalloc(parent_dev, sizeof(*mc_bus), GFP_KERNEL);
+		if (!mc_bus)
+			return -ENOMEM;
+
+		mc_dev = &mc_bus->mc_dev;
+	} else {
+		/*
+		 * Allocate a regular fsl_mc_device object:
+		 */
+		mc_dev = kmem_cache_zalloc(mc_dev_cache, GFP_KERNEL);
+		if (!mc_dev)
+			return -ENOMEM;
+	}
+
+	mc_dev->obj_desc = *obj_desc;
+	mc_dev->mc_io = mc_io;
+	device_initialize(&mc_dev->dev);
+	mc_dev->dev.parent = parent_dev;
+	mc_dev->dev.bus = &fsl_mc_bus_type;
+	dev_set_name(&mc_dev->dev, "%s.%d", obj_desc->type, obj_desc->id);
+
+	if (strcmp(obj_desc->type, "dprc") == 0) {
+		struct fsl_mc_io *mc_io2;
+
+		mc_dev->flags |= FSL_MC_IS_DPRC;
+
+		/*
+		 * To get the DPRC's ICID, we need to open the DPRC
+		 * in get_dprc_icid(). For child DPRCs, we do so using the
+		 * parent DPRC's MC portal instead of the child DPRC's MC
+		 * portal, in case the child DPRC is already opened with
+		 * its own portal (e.g., the DPRC used by AIOP).
+		 *
+		 * NOTE: There cannot be more than one active open for a
+		 * given MC object, using the same MC portal.
+		 */
+		if (parent_mc_dev) {
+			/*
+			 * device being added is a child DPRC device
+			 */
+			mc_io2 = parent_mc_dev->mc_io;
+		} else {
+			/*
+			 * device being added is the root DPRC device
+			 */
+			if (WARN_ON(!mc_io)) {
+				error = -EINVAL;
+				goto error_cleanup_dev;
+			}
+
+			mc_io2 = mc_io;
+
+			if (!fsl_mc_bus_type.dev_root)
+				fsl_mc_bus_type.dev_root = &mc_dev->dev;
+		}
+
+		error = get_dprc_icid(mc_io2, obj_desc->id, &mc_dev->icid);
+		if (error < 0)
+			goto error_cleanup_dev;
+	} else {
+		/*
+		 * A non-DPRC MC object device has to be a child of another
+		 * MC object (specifically a DPRC object)
+		 */
+		mc_dev->icid = parent_mc_dev->icid;
+		mc_dev->dma_mask = FSL_MC_DEFAULT_DMA_MASK;
+		mc_dev->dev.dma_mask = &mc_dev->dma_mask;
+	}
+
+	/*
+	 * Get MMIO regions for the device from the MC:
+	 *
+	 * NOTE: the root DPRC is a special case as its MMIO region is
+	 * obtained from the device tree
+	 */
+	if (parent_mc_dev && obj_desc->region_count != 0) {
+		error = fsl_mc_device_get_mmio_regions(mc_dev,
+						       parent_mc_dev);
+		if (error < 0)
+			goto error_cleanup_dev;
+	}
+
+	/*
+	 * The device-specific probe callback will get invoked by device_add()
+	 */
+	error = device_add(&mc_dev->dev);
+	if (error < 0) {
+		dev_err(parent_dev,
+			"device_add() failed for device %s: %d\n",
+			dev_name(&mc_dev->dev), error);
+		goto error_cleanup_dev;
+	}
+
+	(void)get_device(&mc_dev->dev);
+	dev_dbg(parent_dev, "Added MC object device %s\n",
+		dev_name(&mc_dev->dev));
+
+	*new_mc_dev = mc_dev;
+	return 0;
+
+error_cleanup_dev:
+	kfree(mc_dev->regions);
+	if (mc_bus)
+		devm_kfree(parent_dev, mc_bus);
+	else
+		kmem_cache_free(mc_dev_cache, mc_dev);
+
+	return error;
+}
+EXPORT_SYMBOL_GPL(fsl_mc_device_add);
+
+/**
+ * fsl_mc_device_remove - Remove a MC object device from being visible to
+ * Linux
+ *
+ * @mc_dev: Pointer to a MC object device object
+ */
+void fsl_mc_device_remove(struct fsl_mc_device *mc_dev)
+{
+	struct fsl_mc_bus *mc_bus = NULL;
+
+	kfree(mc_dev->regions);
+
+	/*
+	 * The device-specific remove callback will get invoked by device_del()
+	 */
+	device_del(&mc_dev->dev);
+	put_device(&mc_dev->dev);
+
+	if (strcmp(mc_dev->obj_desc.type, "dprc") == 0) {
+		mc_bus = to_fsl_mc_bus(mc_dev);
+		if (mc_dev->mc_io) {
+			fsl_destroy_mc_io(mc_dev->mc_io);
+			mc_dev->mc_io = NULL;
+		}
+
+		if (&mc_dev->dev == fsl_mc_bus_type.dev_root)
+			fsl_mc_bus_type.dev_root = NULL;
+	}
+
+	if (mc_bus)
+		devm_kfree(mc_dev->dev.parent, mc_bus);
+	else
+		kmem_cache_free(mc_dev_cache, mc_dev);
+}
+EXPORT_SYMBOL_GPL(fsl_mc_device_remove);
+
+static int parse_mc_ranges(struct device *dev,
+			   int *paddr_cells,
+			   int *mc_addr_cells,
+			   int *mc_size_cells,
+			   const __be32 **ranges_start,
+			   uint8_t *num_ranges)
+{
+	const __be32 *prop;
+	int range_tuple_cell_count;
+	int ranges_len;
+	int tuple_len;
+	struct device_node *mc_node = dev->of_node;
+
+	*ranges_start = of_get_property(mc_node, "ranges", &ranges_len);
+	if (!(*ranges_start) || !ranges_len) {
+		dev_warn(dev,
+			 "missing or empty ranges property for device tree node '%s'\n",
+			 mc_node->name);
+
+		*num_ranges = 0;
+		return 0;
+	}
+
+	*paddr_cells = of_n_addr_cells(mc_node);
+
+	prop = of_get_property(mc_node, "#address-cells", NULL);
+	if (prop)
+		*mc_addr_cells = be32_to_cpup(prop);
+	else
+		*mc_addr_cells = *paddr_cells;
+
+	prop = of_get_property(mc_node, "#size-cells", NULL);
+	if (prop)
+		*mc_size_cells = be32_to_cpup(prop);
+	else
+		*mc_size_cells = of_n_size_cells(mc_node);
+
+	range_tuple_cell_count = *paddr_cells + *mc_addr_cells +
+				 *mc_size_cells;
+
+	tuple_len = range_tuple_cell_count * sizeof(__be32);
+	if (ranges_len % tuple_len != 0) {
+		dev_err(dev, "malformed ranges property '%s'\n", mc_node->name);
+		return -EINVAL;
+	}
+
+	*num_ranges = ranges_len / tuple_len;
+	return 0;
+}
+
+static int get_mc_addr_translation_ranges(struct device *dev,
+					  struct fsl_mc_addr_translation_range
+						**ranges,
+					  uint8_t *num_ranges)
+{
+	int error;
+	int paddr_cells;
+	int mc_addr_cells;
+	int mc_size_cells;
+	int i;
+	const __be32 *ranges_start;
+	const __be32 *cell;
+
+	error = parse_mc_ranges(dev,
+				&paddr_cells,
+				&mc_addr_cells,
+				&mc_size_cells,
+				&ranges_start,
+				num_ranges);
+	if (error < 0)
+		return error;
+
+	if (!(*num_ranges)) {
+		/*
+		 * Missing or empty ranges property ("ranges;") for the
+		 * 'fsl,qoriq-mc' node. In this case, identity mapping
+		 * will be used.
+		 */
+		*ranges = NULL;
+		return 0;
+	}
+
+	*ranges = devm_kcalloc(dev, *num_ranges,
+			       sizeof(struct fsl_mc_addr_translation_range),
+			       GFP_KERNEL);
+	if (!(*ranges))
+		return -ENOMEM;
+
+	cell = ranges_start;
+	for (i = 0; i < *num_ranges; ++i) {
+		struct fsl_mc_addr_translation_range *range = &(*ranges)[i];
+
+		range->start_mc_addr = of_read_number(cell, mc_addr_cells);
+		cell += mc_addr_cells;
+		range->start_phys_addr = of_read_number(cell, paddr_cells);
+		cell += paddr_cells;
+		range->end_mc_addr = range->start_mc_addr +
+				     of_read_number(cell, mc_size_cells);
+
+		cell += mc_size_cells;
+	}
+
+	return 0;
+}
+
+/**
+ * fsl_mc_bus_probe - callback invoked when the root MC bus is being
+ * added
+ */
+static int fsl_mc_bus_probe(struct platform_device *pdev)
+{
+	struct dprc_obj_desc obj_desc;
+	int error;
+	struct fsl_mc *mc;
+	struct fsl_mc_device *mc_bus_dev = NULL;
+	struct fsl_mc_io *mc_io = NULL;
+	int container_id;
+	phys_addr_t mc_portal_phys_addr;
+	uint32_t mc_portal_size;
+	struct mc_version mc_version;
+	struct resource res;
+
+	dev_info(&pdev->dev, "Root MC bus device probed");
+
+	mc = devm_kzalloc(&pdev->dev, sizeof(*mc), GFP_KERNEL);
+	if (!mc)
+		return -ENOMEM;
+
+	platform_set_drvdata(pdev, mc);
+
+	/*
+	 * Get physical address of MC portal for the root DPRC:
+	 */
+	error = of_address_to_resource(pdev->dev.of_node, 0, &res);
+	if (error < 0) {
+		dev_err(&pdev->dev,
+			"of_address_to_resource() failed for %s\n",
+			pdev->dev.of_node->full_name);
+		return error;
+	}
+
+	mc_portal_phys_addr = res.start;
+	mc_portal_size = resource_size(&res);
+	error = fsl_create_mc_io(&pdev->dev, mc_portal_phys_addr,
+				 mc_portal_size, NULL, 0, &mc_io);
+	if (error < 0)
+		return error;
+
+	error = mc_get_version(mc_io, &mc_version);
+	if (error != 0) {
+		dev_err(&pdev->dev,
+			"mc_get_version() failed with error %d\n", error);
+		goto error_cleanup_mc_io;
+	}
+
+	dev_info(&pdev->dev,
+		 "Freescale Management Complex Firmware version: %u.%u.%u\n",
+		 mc_version.major, mc_version.minor, mc_version.revision);
+
+	if (mc_version.major < MC_VER_MAJOR) {
+		dev_err(&pdev->dev,
+			"ERROR: MC firmware version not supported by driver (driver version: %u.%u)\n",
+			MC_VER_MAJOR, MC_VER_MINOR);
+		error = -ENOTSUPP;
+		goto error_cleanup_mc_io;
+	}
+
+	if (mc_version.major > MC_VER_MAJOR) {
+		dev_warn(&pdev->dev,
+			 "WARNING: driver may not support newer MC firmware features (driver version: %u.%u)\n",
+			 MC_VER_MAJOR, MC_VER_MINOR);
+	}
+
+	error = get_mc_addr_translation_ranges(&pdev->dev,
+					       &mc->translation_ranges,
+					       &mc->num_translation_ranges);
+	if (error < 0)
+		goto error_cleanup_mc_io;
+
+	error = dpmng_get_container_id(mc_io, &container_id);
+	if (error < 0) {
+		dev_err(&pdev->dev,
+			"dpmng_get_container_id() failed: %d\n", error);
+		goto error_cleanup_mc_io;
+	}
+
+	obj_desc.vendor = FSL_MC_VENDOR_FREESCALE;
+	strcpy(obj_desc.type, "dprc");
+	obj_desc.id = container_id;
+	obj_desc.ver_major = DPRC_VER_MAJOR;
+	obj_desc.ver_minor = DPRC_VER_MINOR;
+	obj_desc.region_count = 0;
+
+	error = fsl_mc_device_add(&obj_desc, mc_io, &pdev->dev, &mc_bus_dev);
+	if (error < 0)
+		goto error_cleanup_mc_io;
+
+	mc->root_mc_bus_dev = mc_bus_dev;
+	return 0;
+
+error_cleanup_mc_io:
+	fsl_destroy_mc_io(mc_io);
+	return error;
+}
+
+/**
+ * fsl_mc_bus_remove - callback invoked when the root MC bus is being
+ * removed
+ */
+static int fsl_mc_bus_remove(struct platform_device *pdev)
+{
+	struct fsl_mc *mc = platform_get_drvdata(pdev);
+
+	if (WARN_ON(&mc->root_mc_bus_dev->dev != fsl_mc_bus_type.dev_root))
+		return -EINVAL;
+
+	fsl_mc_device_remove(mc->root_mc_bus_dev);
+	dev_info(&pdev->dev, "Root MC bus device removed");
+	return 0;
+}
+
+static const struct of_device_id fsl_mc_bus_match_table[] = {
+	{.compatible = "fsl,qoriq-mc",},
+	{},
+};
+
+MODULE_DEVICE_TABLE(of, fsl_mc_bus_match_table);
+
+static struct platform_driver fsl_mc_bus_driver = {
+	.driver = {
+		   .name = "fsl_mc_bus",
+		   .owner = THIS_MODULE,
+		   .pm = NULL,
+		   .of_match_table = fsl_mc_bus_match_table,
+		   },
+	.probe = fsl_mc_bus_probe,
+	.remove = fsl_mc_bus_remove,
+};
+
+static int __init fsl_mc_bus_driver_init(void)
+{
+	int error;
+
+	mc_dev_cache = kmem_cache_create("fsl_mc_device",
+					 sizeof(struct fsl_mc_device), 0, 0,
+					 NULL);
+	if (!mc_dev_cache) {
+		pr_err("Could not create fsl_mc_device cache\n");
+		return -ENOMEM;
+	}
+
+	error = bus_register(&fsl_mc_bus_type);
+	if (error < 0) {
+		pr_err("fsl-mc bus type registration failed: %d\n", error);
+		goto error_cleanup_cache;
+	}
+
+	pr_info("fsl-mc bus type registered\n");
+
+	error = platform_driver_register(&fsl_mc_bus_driver);
+	if (error < 0) {
+		pr_err("platform_driver_register() failed: %d\n", error);
+		goto error_cleanup_bus;
+	}
+
+	error = dprc_driver_init();
+	if (error < 0)
+		goto error_cleanup_driver;
+
+	error = fsl_mc_allocator_driver_init();
+	if (error < 0)
+		goto error_cleanup_dprc_driver;
+
+	return 0;
+
+error_cleanup_dprc_driver:
+	dprc_driver_exit();
+
+error_cleanup_driver:
+	platform_driver_unregister(&fsl_mc_bus_driver);
+
+error_cleanup_bus:
+	bus_unregister(&fsl_mc_bus_type);
+
+error_cleanup_cache:
+	kmem_cache_destroy(mc_dev_cache);
+	return error;
+}
+
+postcore_initcall(fsl_mc_bus_driver_init);
+
+static void __exit fsl_mc_bus_driver_exit(void)
+{
+	if (WARN_ON(!mc_dev_cache))
+		return;
+
+	fsl_mc_allocator_driver_exit();
+	dprc_driver_exit();
+	platform_driver_unregister(&fsl_mc_bus_driver);
+	bus_unregister(&fsl_mc_bus_type);
+	kmem_cache_destroy(mc_dev_cache);
+	pr_info("MC bus unregistered\n");
+}
+
+module_exit(fsl_mc_bus_driver_exit);
+
+MODULE_AUTHOR("Freescale Semiconductor Inc.");
+MODULE_DESCRIPTION("Freescale Management Complex (MC) bus driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/staging/fsl-mc/bus/mc-sys.c b/drivers/staging/fsl-mc/bus/mc-sys.c
new file mode 100644
index 0000000..5737f59
--- /dev/null
+++ b/drivers/staging/fsl-mc/bus/mc-sys.c
@@ -0,0 +1,287 @@
+/* Copyright 2013-2014 Freescale Semiconductor Inc.
+ *
+ * I/O services to send MC commands to the MC hardware
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the above-listed copyright holders nor the
+ *       names of any contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "../include/mc-sys.h"
+#include "../include/mc-cmd.h"
+#include <linux/delay.h>
+#include <linux/slab.h>
+#include <linux/ioport.h>
+#include <linux/device.h>
+
+/**
+ * Timeout in jiffies to wait for the completion of an MC command
+ */
+#define MC_CMD_COMPLETION_TIMEOUT_JIFFIES   (HZ / 2)	/* 500 ms */
+
+/*
+ * usleep_range() min and max values used to throttle down polling
+ * iterations while waiting for MC command completion
+ */
+#define MC_CMD_COMPLETION_POLLING_MIN_SLEEP_USECS    10
+#define MC_CMD_COMPLETION_POLLING_MAX_SLEEP_USECS    500
+
+#define MC_CMD_HDR_READ_CMDID(_hdr) \
+	((uint16_t)mc_dec((_hdr), MC_CMD_HDR_CMDID_O, MC_CMD_HDR_CMDID_S))
+
+/**
+ * Creates an MC I/O object
+ *
+ * @dev: device to be associated with the MC I/O object
+ * @mc_portal_phys_addr: physical address of the MC portal to use
+ * @mc_portal_size: size in bytes of the MC portal
+ * @resource: Pointer to MC bus object allocator resource associated
+ * with this MC I/O object or NULL if none.
+ * @flags: flags for the new MC I/O object
+ * @new_mc_io: Area to return pointer to newly created MC I/O object
+ *
+ * Returns '0' on Success; Error code otherwise.
+ */
+int __must_check fsl_create_mc_io(struct device *dev,
+				  phys_addr_t mc_portal_phys_addr,
+				  uint32_t mc_portal_size,
+				  struct fsl_mc_resource *resource,
+				  uint32_t flags, struct fsl_mc_io **new_mc_io)
+{
+	struct fsl_mc_io *mc_io;
+	void __iomem *mc_portal_virt_addr;
+	struct resource *res;
+
+	mc_io = devm_kzalloc(dev, sizeof(*mc_io), GFP_KERNEL);
+	if (!mc_io)
+		return -ENOMEM;
+
+	mc_io->dev = dev;
+	mc_io->flags = flags;
+	mc_io->portal_phys_addr = mc_portal_phys_addr;
+	mc_io->portal_size = mc_portal_size;
+	mc_io->resource = resource;
+	res = devm_request_mem_region(dev,
+				      mc_portal_phys_addr,
+				      mc_portal_size,
+				      "mc_portal");
+	if (!res) {
+		dev_err(dev,
+			"devm_request_mem_region failed for MC portal %#llx\n",
+			mc_portal_phys_addr);
+		return -EBUSY;
+	}
+
+	mc_portal_virt_addr = devm_ioremap_nocache(dev,
+						   mc_portal_phys_addr,
+						   mc_portal_size);
+	if (!mc_portal_virt_addr) {
+		dev_err(dev,
+			"devm_ioremap_nocache failed for MC portal %#llx\n",
+			mc_portal_phys_addr);
+		return -ENXIO;
+	}
+
+	mc_io->portal_virt_addr = mc_portal_virt_addr;
+	*new_mc_io = mc_io;
+	return 0;
+}
+EXPORT_SYMBOL_GPL(fsl_create_mc_io);
+
+/**
+ * Destroys an MC I/O object
+ *
+ * @mc_io: MC I/O object to destroy
+ */
+void fsl_destroy_mc_io(struct fsl_mc_io *mc_io)
+{
+	devm_iounmap(mc_io->dev, mc_io->portal_virt_addr);
+	devm_release_mem_region(mc_io->dev,
+				mc_io->portal_phys_addr,
+				mc_io->portal_size);
+
+	mc_io->portal_virt_addr = NULL;
+	devm_kfree(mc_io->dev, mc_io);
+}
+EXPORT_SYMBOL_GPL(fsl_destroy_mc_io);
+
+static int mc_status_to_error(enum mc_cmd_status status)
+{
+	static const int mc_status_to_error_map[] = {
+		[MC_CMD_STATUS_OK] = 0,
+		[MC_CMD_STATUS_AUTH_ERR] = -EACCES,
+		[MC_CMD_STATUS_NO_PRIVILEGE] = -EPERM,
+		[MC_CMD_STATUS_DMA_ERR] = -EIO,
+		[MC_CMD_STATUS_CONFIG_ERR] = -ENXIO,
+		[MC_CMD_STATUS_TIMEOUT] = -ETIMEDOUT,
+		[MC_CMD_STATUS_NO_RESOURCE] = -ENAVAIL,
+		[MC_CMD_STATUS_NO_MEMORY] = -ENOMEM,
+		[MC_CMD_STATUS_BUSY] = -EBUSY,
+		[MC_CMD_STATUS_UNSUPPORTED_OP] = -ENOTSUPP,
+		[MC_CMD_STATUS_INVALID_STATE] = -ENODEV,
+	};
+
+	if (WARN_ON((u32)status >= ARRAY_SIZE(mc_status_to_error_map)))
+		return -EINVAL;
+
+	return mc_status_to_error_map[status];
+}
+
+static const char *mc_status_to_string(enum mc_cmd_status status)
+{
+	static const char *const status_strings[] = {
+		[MC_CMD_STATUS_OK] = "Command completed successfully",
+		[MC_CMD_STATUS_READY] = "Command ready to be processed",
+		[MC_CMD_STATUS_AUTH_ERR] = "Authentication error",
+		[MC_CMD_STATUS_NO_PRIVILEGE] = "No privilege",
+		[MC_CMD_STATUS_DMA_ERR] = "DMA or I/O error",
+		[MC_CMD_STATUS_CONFIG_ERR] = "Configuration error",
+		[MC_CMD_STATUS_TIMEOUT] = "Operation timed out",
+		[MC_CMD_STATUS_NO_RESOURCE] = "No resources",
+		[MC_CMD_STATUS_NO_MEMORY] = "No memory available",
+		[MC_CMD_STATUS_BUSY] = "Device is busy",
+		[MC_CMD_STATUS_UNSUPPORTED_OP] = "Unsupported operation",
+		[MC_CMD_STATUS_INVALID_STATE] = "Invalid state"
+	};
+
+	if ((unsigned int)status >= ARRAY_SIZE(status_strings))
+		return "Unknown MC error";
+
+	return status_strings[status];
+}
+
+/**
+ * mc_write_command - writes a command to a Management Complex (MC) portal
+ *
+ * @portal: pointer to an MC portal
+ * @cmd: pointer to a filled command
+ */
+static inline void mc_write_command(struct mc_command __iomem *portal,
+				    struct mc_command *cmd)
+{
+	int i;
+
+	/* copy command parameters into the portal */
+	for (i = 0; i < MC_CMD_NUM_OF_PARAMS; i++)
+		writeq(cmd->params[i], &portal->params[i]);
+
+	/* submit the command by writing the header */
+	writeq(cmd->header, &portal->header);
+}
+
+/**
+ * mc_read_response - reads the response for the last MC command from a
+ * Management Complex (MC) portal
+ *
+ * @portal: pointer to an MC portal
+ * @resp: pointer to command response buffer
+ *
+ * Returns MC_CMD_STATUS_OK on Success; Error code otherwise.
+ */
+static inline enum mc_cmd_status mc_read_response(struct mc_command __iomem *
+						  portal,
+						  struct mc_command *resp)
+{
+	int i;
+	enum mc_cmd_status status;
+
+	/* Copy command response header from MC portal: */
+	resp->header = readq(&portal->header);
+	status = MC_CMD_HDR_READ_STATUS(resp->header);
+	if (status != MC_CMD_STATUS_OK)
+		return status;
+
+	/* Copy command response data from MC portal: */
+	for (i = 0; i < MC_CMD_NUM_OF_PARAMS; i++)
+		resp->params[i] = readq(&portal->params[i]);
+
+	return status;
+}
+
+/**
+ * Sends an command to the MC device using the given MC I/O object
+ *
+ * @mc_io: MC I/O object to be used
+ * @cmd: command to be sent
+ *
+ * Returns '0' on Success; Error code otherwise.
+ *
+ * NOTE: This function cannot be invoked from from atomic contexts.
+ */
+int mc_send_command(struct fsl_mc_io *mc_io, struct mc_command *cmd)
+{
+	enum mc_cmd_status status;
+	unsigned long jiffies_until_timeout =
+	    jiffies + MC_CMD_COMPLETION_TIMEOUT_JIFFIES;
+
+	/*
+	 * Send command to the MC hardware:
+	 */
+	mc_write_command(mc_io->portal_virt_addr, cmd);
+
+	/*
+	 * Wait for response from the MC hardware:
+	 */
+	for (;;) {
+		status = mc_read_response(mc_io->portal_virt_addr, cmd);
+		if (status != MC_CMD_STATUS_READY)
+			break;
+
+		/*
+		 * TODO: When MC command completion interrupts are supported
+		 * call wait function here instead of usleep_range()
+		 */
+		usleep_range(MC_CMD_COMPLETION_POLLING_MIN_SLEEP_USECS,
+			     MC_CMD_COMPLETION_POLLING_MAX_SLEEP_USECS);
+
+		if (time_after_eq(jiffies, jiffies_until_timeout)) {
+			pr_debug("MC command timed out (portal: %#llx, obj handle: %#x, command: %#x)\n",
+				 mc_io->portal_phys_addr,
+				 (unsigned int)
+					MC_CMD_HDR_READ_TOKEN(cmd->header),
+				 (unsigned int)
+					MC_CMD_HDR_READ_CMDID(cmd->header));
+
+			return -ETIMEDOUT;
+		}
+	}
+
+	if (status != MC_CMD_STATUS_OK) {
+		pr_debug("MC command failed: portal: %#llx, obj handle: %#x, command: %#x, status: %s (%#x)\n",
+			 mc_io->portal_phys_addr,
+			 (unsigned int)MC_CMD_HDR_READ_TOKEN(cmd->header),
+			 (unsigned int)MC_CMD_HDR_READ_CMDID(cmd->header),
+			 mc_status_to_string(status),
+			 (unsigned int)status);
+
+		return mc_status_to_error(status);
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL(mc_send_command);
diff --git a/drivers/staging/fsl-mc/include/dpbp-cmd.h b/drivers/staging/fsl-mc/include/dpbp-cmd.h
new file mode 100644
index 0000000..1fd70a21
--- /dev/null
+++ b/drivers/staging/fsl-mc/include/dpbp-cmd.h
@@ -0,0 +1,60 @@
+/* Copyright 2013-2014 Freescale Semiconductor Inc.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions are met:
+* * Redistributions of source code must retain the above copyright
+* notice, this list of conditions and the following disclaimer.
+* * Redistributions in binary form must reproduce the above copyright
+* notice, this list of conditions and the following disclaimer in the
+* documentation and/or other materials provided with the distribution.
+* * Neither the name of the above-listed copyright holders nor the
+* names of any contributors may be used to endorse or promote products
+* derived from this software without specific prior written permission.
+*
+*
+* ALTERNATIVELY, this software may be distributed under the terms of the
+* GNU General Public License ("GPL") as published by the Free Software
+* Foundation, either version 2 of that License or (at your option) any
+* later version.
+*
+* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
+* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+* POSSIBILITY OF SUCH DAMAGE.
+*/
+#ifndef _FSL_DPBP_CMD_H
+#define _FSL_DPBP_CMD_H
+
+/* DPBP Version */
+#define DPBP_VER_MAJOR				2
+#define DPBP_VER_MINOR				0
+
+/* Command IDs */
+#define DPBP_CMDID_CLOSE				0x800
+#define DPBP_CMDID_OPEN					0x804
+#define DPBP_CMDID_CREATE				0x904
+#define DPBP_CMDID_DESTROY				0x900
+
+#define DPBP_CMDID_ENABLE				0x002
+#define DPBP_CMDID_DISABLE				0x003
+#define DPBP_CMDID_GET_ATTR				0x004
+#define DPBP_CMDID_RESET				0x005
+#define DPBP_CMDID_IS_ENABLED				0x006
+
+#define DPBP_CMDID_SET_IRQ				0x010
+#define DPBP_CMDID_GET_IRQ				0x011
+#define DPBP_CMDID_SET_IRQ_ENABLE			0x012
+#define DPBP_CMDID_GET_IRQ_ENABLE			0x013
+#define DPBP_CMDID_SET_IRQ_MASK				0x014
+#define DPBP_CMDID_GET_IRQ_MASK				0x015
+#define DPBP_CMDID_GET_IRQ_STATUS			0x016
+#define DPBP_CMDID_CLEAR_IRQ_STATUS			0x017
+
+#endif /* _FSL_DPBP_CMD_H */
diff --git a/drivers/staging/fsl-mc/include/dpbp.h b/drivers/staging/fsl-mc/include/dpbp.h
new file mode 100644
index 0000000..5f3c8e7
--- /dev/null
+++ b/drivers/staging/fsl-mc/include/dpbp.h
@@ -0,0 +1,330 @@
+/* Copyright 2013-2015 Freescale Semiconductor Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of the above-listed copyright holders nor the
+ * names of any contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+#ifndef __FSL_DPBP_H
+#define __FSL_DPBP_H
+
+/* Data Path Buffer Pool API
+ * Contains initialization APIs and runtime control APIs for DPBP
+ */
+
+struct fsl_mc_io;
+
+/**
+ * dpbp_open() - Open a control session for the specified object.
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @dpbp_id:	DPBP unique ID
+ * @token:	Returned token; use in subsequent API calls
+ *
+ * This function can be used to open a control session for an
+ * already created object; an object may have been declared in
+ * the DPL or by calling the dpbp_create function.
+ * This function returns a unique authentication token,
+ * associated with the specific object ID and the specific MC
+ * portal; this token must be used in all subsequent commands for
+ * this specific object
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dpbp_open(struct fsl_mc_io *mc_io, int dpbp_id, uint16_t *token);
+
+/**
+ * dpbp_close() - Close the control session of the object
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @token:	Token of DPBP object
+ *
+ * After this function is called, no further operations are
+ * allowed on the object without opening a new control session.
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dpbp_close(struct fsl_mc_io *mc_io, uint16_t token);
+
+/**
+ * struct dpbp_cfg() - Structure representing DPBP configuration
+ * @options:	place holder
+ */
+struct dpbp_cfg {
+	uint32_t options;
+};
+
+/**
+ * dpbp_create() - Create the DPBP object.
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @cfg:	Configuration structure
+ * @token:	Returned token; use in subsequent API calls
+ *
+ * Create the DPBP object, allocate required resources and
+ * perform required initialization.
+ *
+ * The object can be created either by declaring it in the
+ * DPL file, or by calling this function.
+ * This function returns a unique authentication token,
+ * associated with the specific object ID and the specific MC
+ * portal; this token must be used in all subsequent calls to
+ * this specific object. For objects that are created using the
+ * DPL file, call dpbp_open function to get an authentication
+ * token first.
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dpbp_create(struct fsl_mc_io	*mc_io,
+		const struct dpbp_cfg	*cfg,
+		uint16_t		*token);
+
+/**
+ * dpbp_destroy() - Destroy the DPBP object and release all its resources.
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @token:	Token of DPBP object
+ *
+ * Return:	'0' on Success; error code otherwise.
+ */
+int dpbp_destroy(struct fsl_mc_io *mc_io, uint16_t token);
+
+/**
+ * dpbp_enable() - Enable the DPBP.
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @token:	Token of DPBP object
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dpbp_enable(struct fsl_mc_io *mc_io, uint16_t token);
+
+/**
+ * dpbp_disable() - Disable the DPBP.
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @token:	Token of DPBP object
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dpbp_disable(struct fsl_mc_io *mc_io, uint16_t token);
+
+/**
+ * dpbp_is_enabled() - Check if the DPBP is enabled.
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @token:	Token of DPBP object
+ * @en:		Returns '1' if object is enabled; '0' otherwise
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dpbp_is_enabled(struct fsl_mc_io *mc_io, uint16_t token, int *en);
+
+/**
+ * dpbp_reset() - Reset the DPBP, returns the object to initial state.
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @token:	Token of DPBP object
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dpbp_reset(struct fsl_mc_io *mc_io, uint16_t token);
+
+/**
+ * dpbp_set_irq() - Set IRQ information for the DPBP to trigger an interrupt.
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @token:	Token of DPBP object
+ * @irq_index:	Identifies the interrupt index to configure
+ * @irq_addr:	Address that must be written to
+ *				signal a message-based interrupt
+ * @irq_val:	Value to write into irq_addr address
+ * @user_irq_id: A user defined number associated with this IRQ
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dpbp_set_irq(struct fsl_mc_io	*mc_io,
+		 uint16_t		token,
+		 uint8_t		irq_index,
+		 uint64_t		irq_addr,
+		 uint32_t		irq_val,
+		 int			user_irq_id);
+
+/**
+ * dpbp_get_irq() - Get IRQ information from the DPBP.
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @token:	Token of DPBP object
+ * @irq_index:	The interrupt index to configure
+ * @type:	Interrupt type: 0 represents message interrupt
+ *				type (both irq_addr and irq_val are valid)
+ * @irq_addr:	Returned address that must be written to
+ *				signal the message-based interrupt
+ * @irq_val:	Value to write into irq_addr address
+ * @user_irq_id: A user defined number associated with this IRQ
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dpbp_get_irq(struct fsl_mc_io	*mc_io,
+		 uint16_t		token,
+		 uint8_t		irq_index,
+		 int			*type,
+		 uint64_t		*irq_addr,
+		 uint32_t		*irq_val,
+		 int			*user_irq_id);
+
+/**
+ * dpbp_set_irq_enable() - Set overall interrupt state.
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @token:	Token of DPBP object
+ * @irq_index:	The interrupt index to configure
+ * @en:	Interrupt state - enable = 1, disable = 0
+ *
+ * Allows GPP software to control when interrupts are generated.
+ * Each interrupt can have up to 32 causes.  The enable/disable control's the
+ * overall interrupt state. if the interrupt is disabled no causes will cause
+ * an interrupt.
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dpbp_set_irq_enable(struct fsl_mc_io	*mc_io,
+			uint16_t		token,
+			uint8_t			irq_index,
+			uint8_t			en);
+
+/**
+ * dpbp_get_irq_enable() - Get overall interrupt state
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @token:	Token of DPBP object
+ * @irq_index:	The interrupt index to configure
+ * @en:		Returned interrupt state - enable = 1, disable = 0
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dpbp_get_irq_enable(struct fsl_mc_io	*mc_io,
+			uint16_t		token,
+			uint8_t			irq_index,
+			uint8_t			*en);
+
+/**
+ * dpbp_set_irq_mask() - Set interrupt mask.
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @token:	Token of DPBP object
+ * @irq_index:	The interrupt index to configure
+ * @mask:	Event mask to trigger interrupt;
+ *			each bit:
+ *				0 = ignore event
+ *				1 = consider event for asserting IRQ
+ *
+ * Every interrupt can have up to 32 causes and the interrupt model supports
+ * masking/unmasking each cause independently
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dpbp_set_irq_mask(struct fsl_mc_io	*mc_io,
+		      uint16_t		token,
+		      uint8_t		irq_index,
+		      uint32_t		mask);
+
+/**
+ * dpbp_get_irq_mask() - Get interrupt mask.
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @token:	Token of DPBP object
+ * @irq_index:	The interrupt index to configure
+ * @mask:	Returned event mask to trigger interrupt
+ *
+ * Every interrupt can have up to 32 causes and the interrupt model supports
+ * masking/unmasking each cause independently
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dpbp_get_irq_mask(struct fsl_mc_io	*mc_io,
+		      uint16_t		token,
+		      uint8_t		irq_index,
+		      uint32_t		*mask);
+
+/**
+ * dpbp_get_irq_status() - Get the current status of any pending interrupts.
+ *
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @token:	Token of DPBP object
+ * @irq_index:	The interrupt index to configure
+ * @status:	Returned interrupts status - one bit per cause:
+ *			0 = no interrupt pending
+ *			1 = interrupt pending
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dpbp_get_irq_status(struct fsl_mc_io	*mc_io,
+			uint16_t		token,
+			uint8_t			irq_index,
+			uint32_t		*status);
+
+/**
+ * dpbp_clear_irq_status() - Clear a pending interrupt's status
+ *
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @token:	Token of DPBP object
+ * @irq_index:	The interrupt index to configure
+ * @status:	Bits to clear (W1C) - one bit per cause:
+ *					0 = don't change
+ *					1 = clear status bit
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dpbp_clear_irq_status(struct fsl_mc_io	*mc_io,
+			  uint16_t		token,
+			  uint8_t		irq_index,
+			  uint32_t		status);
+
+/**
+ * struct dpbp_attr - Structure representing DPBP attributes
+ * @id:		DPBP object ID
+ * @version:	DPBP version
+ * @bpid:	Hardware buffer pool ID; should be used as an argument in
+ *		acquire/release operations on buffers
+ */
+struct dpbp_attr {
+	int id;
+	/**
+	 * struct version - Structure representing DPBP version
+	 * @major:	DPBP major version
+	 * @minor:	DPBP minor version
+	 */
+	struct {
+		uint16_t major;
+		uint16_t minor;
+	} version;
+	uint16_t bpid;
+};
+
+/**
+ * dpbp_get_attributes - Retrieve DPBP attributes.
+ *
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @token:	Token of DPBP object
+ * @attr:	Returned object's attributes
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dpbp_get_attributes(struct fsl_mc_io	*mc_io,
+			uint16_t		token,
+			struct dpbp_attr	*attr);
+
+/** @} */
+
+#endif /* __FSL_DPBP_H */
diff --git a/drivers/staging/fsl-mc/include/dpcon-cmd.h b/drivers/staging/fsl-mc/include/dpcon-cmd.h
new file mode 100644
index 0000000..c878d33
--- /dev/null
+++ b/drivers/staging/fsl-mc/include/dpcon-cmd.h
@@ -0,0 +1,62 @@
+/* Copyright 2013-2015 Freescale Semiconductor Inc.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions are met:
+* * Redistributions of source code must retain the above copyright
+* notice, this list of conditions and the following disclaimer.
+* * Redistributions in binary form must reproduce the above copyright
+* notice, this list of conditions and the following disclaimer in the
+* documentation and/or other materials provided with the distribution.
+* * Neither the name of the above-listed copyright holders nor the
+* names of any contributors may be used to endorse or promote products
+* derived from this software without specific prior written permission.
+*
+*
+* ALTERNATIVELY, this software may be distributed under the terms of the
+* GNU General Public License ("GPL") as published by the Free Software
+* Foundation, either version 2 of that License or (at your option) any
+* later version.
+*
+* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
+* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+* POSSIBILITY OF SUCH DAMAGE.
+*/
+#ifndef _FSL_DPCON_CMD_H
+#define _FSL_DPCON_CMD_H
+
+/* DPCON Version */
+#define DPCON_VER_MAJOR				2
+#define DPCON_VER_MINOR				0
+
+/* Command IDs */
+#define DPCON_CMDID_CLOSE				0x800
+#define DPCON_CMDID_OPEN				0x808
+#define DPCON_CMDID_CREATE				0x908
+#define DPCON_CMDID_DESTROY				0x900
+
+#define DPCON_CMDID_ENABLE				0x002
+#define DPCON_CMDID_DISABLE				0x003
+#define DPCON_CMDID_GET_ATTR				0x004
+#define DPCON_CMDID_RESET				0x005
+#define DPCON_CMDID_IS_ENABLED				0x006
+
+#define DPCON_CMDID_SET_IRQ				0x010
+#define DPCON_CMDID_GET_IRQ				0x011
+#define DPCON_CMDID_SET_IRQ_ENABLE			0x012
+#define DPCON_CMDID_GET_IRQ_ENABLE			0x013
+#define DPCON_CMDID_SET_IRQ_MASK			0x014
+#define DPCON_CMDID_GET_IRQ_MASK			0x015
+#define DPCON_CMDID_GET_IRQ_STATUS			0x016
+#define DPCON_CMDID_CLEAR_IRQ_STATUS			0x017
+
+#define DPCON_CMDID_SET_NOTIFICATION			0x100
+
+#endif /* _FSL_DPCON_CMD_H */
diff --git a/drivers/staging/fsl-mc/include/dpmng.h b/drivers/staging/fsl-mc/include/dpmng.h
new file mode 100644
index 0000000..1b052b8
--- /dev/null
+++ b/drivers/staging/fsl-mc/include/dpmng.h
@@ -0,0 +1,80 @@
+/* Copyright 2013-2015 Freescale Semiconductor Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of the above-listed copyright holders nor the
+ * names of any contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+#ifndef __FSL_DPMNG_H
+#define __FSL_DPMNG_H
+
+/* Management Complex General API
+ * Contains general API for the Management Complex firmware
+ */
+
+struct fsl_mc_io;
+
+/**
+ * Management Complex firmware version information
+ */
+#define MC_VER_MAJOR 6
+#define MC_VER_MINOR 0
+
+/**
+ * struct mc_versoin
+ * @major: Major version number: incremented on API compatibility changes
+ * @minor: Minor version number: incremented on API additions (that are
+ *		backward compatible); reset when major version is incremented
+ * @revision: Internal revision number: incremented on implementation changes
+ *		and/or bug fixes that have no impact on API
+ */
+struct mc_version {
+	uint32_t major;
+	uint32_t minor;
+	uint32_t revision;
+};
+
+/**
+ * mc_get_version() - Retrieves the Management Complex firmware
+ *			version information
+ * @mc_io:		Pointer to opaque I/O object
+ * @mc_ver_info:	Returned version information structure
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int mc_get_version(struct fsl_mc_io *mc_io, struct mc_version *mc_ver_info);
+
+/**
+ * dpmng_get_container_id() - Get container ID associated with a given portal.
+ * @mc_io:		Pointer to MC portal's I/O object
+ * @container_id:	Requested container ID
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dpmng_get_container_id(struct fsl_mc_io *mc_io, int *container_id);
+
+#endif /* __FSL_DPMNG_H */
diff --git a/drivers/staging/fsl-mc/include/dprc.h b/drivers/staging/fsl-mc/include/dprc.h
new file mode 100644
index 0000000..f1862a7
--- /dev/null
+++ b/drivers/staging/fsl-mc/include/dprc.h
@@ -0,0 +1,801 @@
+/* Copyright 2013-2015 Freescale Semiconductor Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of the above-listed copyright holders nor the
+ * names of any contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+#ifndef _FSL_DPRC_H
+#define _FSL_DPRC_H
+
+/* Data Path Resource Container API
+ * Contains DPRC API for managing and querying DPAA resources
+ */
+
+struct fsl_mc_io;
+
+/**
+ * Set this value as the icid value in dprc_cfg structure when creating a
+ * container, in case the ICID is not selected by the user and should be
+ * allocated by the DPRC from the pool of ICIDs.
+ */
+#define DPRC_GET_ICID_FROM_POOL			(uint16_t)(~(0))
+
+/**
+ * Set this value as the portal_id value in dprc_cfg structure when creating a
+ * container, in case the portal ID is not specifically selected by the
+ * user and should be allocated by the DPRC from the pool of portal ids.
+ */
+#define DPRC_GET_PORTAL_ID_FROM_POOL	(int)(~(0))
+
+/**
+ * dprc_open() - Open DPRC object for use
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @container_id: Container ID to open
+ * @token:	Returned token of DPRC object
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ *
+ * @warning	Required before any operation on the object.
+ */
+int dprc_open(struct fsl_mc_io *mc_io, int container_id, uint16_t *token);
+
+/**
+ * dprc_close() - Close the control session of the object
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @token:	Token of DPRC object
+ *
+ * After this function is called, no further operations are
+ * allowed on the object without opening a new control session.
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dprc_close(struct fsl_mc_io *mc_io, uint16_t token);
+
+/**
+ * Container general options
+ *
+ * These options may be selected at container creation by the container creator
+ * and can be retrieved using dprc_get_attributes()
+ */
+
+/* Spawn Policy Option allowed - Indicates that the new container is allowed
+ * to spawn and have its own child containers.
+ */
+#define DPRC_CFG_OPT_SPAWN_ALLOWED		0x00000001
+
+/* General Container allocation policy - Indicates that the new container is
+ * allowed to allocate requested resources from its parent container; if not
+ * set, the container is only allowed to use resources in its own pools; Note
+ * that this is a container's global policy, but the parent container may
+ * override it and set specific quota per resource type.
+ */
+#define DPRC_CFG_OPT_ALLOC_ALLOWED		0x00000002
+
+/* Object initialization allowed - software context associated with this
+ * container is allowed to invoke object initialization operations.
+ */
+#define DPRC_CFG_OPT_OBJ_CREATE_ALLOWED	0x00000004
+
+/* Topology change allowed - software context associated with this
+ * container is allowed to invoke topology operations, such as attach/detach
+ * of network objects.
+ */
+#define DPRC_CFG_OPT_TOPOLOGY_CHANGES_ALLOWED	0x00000008
+
+/* IOMMU bypass - indicates whether objects of this container are permitted
+ * to bypass the IOMMU.
+ */
+#define DPRC_CFG_OPT_IOMMU_BYPASS		0x00000010
+
+/* AIOP - Indicates that container belongs to AIOP.  */
+#define DPRC_CFG_OPT_AIOP			0x00000020
+
+/**
+ * struct dprc_cfg - Container configuration options
+ * @icid: Container's ICID; if set to 'DPRC_GET_ICID_FROM_POOL', a free
+ *		ICID value is allocated by the DPRC
+ * @portal_id: Portal ID; if set to 'DPRC_GET_PORTAL_ID_FROM_POOL', a free
+ *		portal ID is allocated by the DPRC
+ * @options: Combination of 'DPRC_CFG_OPT_<X>' options
+ */
+struct dprc_cfg {
+	uint16_t icid;
+	int portal_id;
+	uint64_t options;
+};
+
+/**
+ * dprc_create_container() - Create child container
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @token:	Token of DPRC object
+ * @cfg:	Child container configuration
+ * @child_container_id:	Returned child container ID
+ * @child_portal_paddr:	Returned base physical address of the
+ *					child portal
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dprc_create_container(struct fsl_mc_io	*mc_io,
+			  uint16_t		token,
+			  struct dprc_cfg	*cfg,
+			  int			*child_container_id,
+			  uint64_t		*child_portal_paddr);
+
+/**
+ * dprc_destroy_container() - Destroy child container.
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @token:	Token of DPRC object
+ * @child_container_id:	ID of the container to destroy
+ *
+ * This function terminates the child container, so following this call the
+ * child container ID becomes invalid.
+ *
+ * Notes:
+ * - All resources and objects of the destroyed container are returned to the
+ * parent container or destroyed if were created be the destroyed container.
+ * - This function destroy all the child containers of the specified
+ *   container prior to destroying the container itself.
+ *
+ * warning: Only the parent container is allowed to destroy a child policy
+ *		Container 0 can't be destroyed
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ *
+ */
+int dprc_destroy_container(struct fsl_mc_io	*mc_io,
+			   uint16_t		token,
+			   int			child_container_id);
+
+/**
+ * dprc_reset_container - Reset child container.
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @token:	Token of DPRC object
+ * @child_container_id:	ID of the container to reset
+ *
+ * In case a software context crashes or becomes non-responsive, the parent
+ * may wish to reset its resources container before the software context is
+ * restarted.
+ *
+ * This routine informs all objects assigned to the child container that the
+ * container is being reset, so they may perform any cleanup operations that are
+ * needed. All objects handles that were owned by the child container shall be
+ * closed.
+ *
+ * Note that such request may be submitted even if the child software context
+ * has not crashed, but the resulting object cleanup operations will not be
+ * aware of that.
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dprc_reset_container(struct fsl_mc_io *mc_io,
+			 uint16_t token,
+			 int child_container_id);
+
+/* IRQ */
+
+/* Number of dprc's IRQs */
+#define DPRC_NUM_OF_IRQS		1
+
+/* Object irq events */
+
+/* IRQ event - Indicates that a new object assigned to the container */
+#define DPRC_IRQ_EVENT_OBJ_ADDED		0x00000001
+/* IRQ event - Indicates that an object was unassigned from the container */
+#define DPRC_IRQ_EVENT_OBJ_REMOVED		0x00000002
+/* IRQ event - Indicates that resources assigned to the container */
+#define DPRC_IRQ_EVENT_RES_ADDED		0x00000004
+/* IRQ event - Indicates that resources unassigned from the container */
+#define DPRC_IRQ_EVENT_RES_REMOVED		0x00000008
+/* IRQ event - Indicates that one of the descendant containers that opened by
+ * this container is destroyed
+ */
+#define DPRC_IRQ_EVENT_CONTAINER_DESTROYED	0x00000010
+
+/* IRQ event - Indicates that on one of the container's opened object is
+ * destroyed
+ */
+#define DPRC_IRQ_EVENT_OBJ_DESTROYED		0x00000020
+
+/* Irq event - Indicates that object is created at the container */
+#define DPRC_IRQ_EVENT_OBJ_CREATED		0x00000040
+
+/**
+ * dprc_set_irq() - Set IRQ information for the DPRC to trigger an interrupt.
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @token:	Token of DPRC object
+ * @irq_index:	Identifies the interrupt index to configure
+ * @irq_addr:	Address that must be written to
+ *			signal a message-based interrupt
+ * @irq_val:	Value to write into irq_addr address
+ * @user_irq_id: Returned a user defined number associated with this IRQ
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dprc_set_irq(struct fsl_mc_io	*mc_io,
+		 uint16_t		token,
+		 uint8_t		irq_index,
+		 uint64_t		irq_addr,
+		 uint32_t		irq_val,
+		 int			user_irq_id);
+
+/**
+ * dprc_get_irq() - Get IRQ information from the DPRC.
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @token:	Token of DPRC object
+ * @irq_index:	The interrupt index to configure
+ * @type:	Returned interrupt type: 0 represents message interrupt
+ *			type (both irq_addr and irq_val are valid)
+ * @irq_addr:	Returned address that must be written to
+ *			signal the message-based interrupt
+ * @irq_val:	Value to write into irq_addr address
+ * @user_irq_id: A user defined number associated with this IRQ
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dprc_get_irq(struct fsl_mc_io	*mc_io,
+		 uint16_t		token,
+		 uint8_t		irq_index,
+		 int			*type,
+		 uint64_t		*irq_addr,
+		 uint32_t		*irq_val,
+		 int			*user_irq_id);
+
+/**
+ * dprc_set_irq_enable() - Set overall interrupt state.
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @token:	Token of DPRC object
+ * @irq_index:	The interrupt index to configure
+ * @en:		Interrupt state - enable = 1, disable = 0
+ *
+ * Allows GPP software to control when interrupts are generated.
+ * Each interrupt can have up to 32 causes.  The enable/disable control's the
+ * overall interrupt state. if the interrupt is disabled no causes will cause
+ * an interrupt.
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dprc_set_irq_enable(struct fsl_mc_io	*mc_io,
+			uint16_t		token,
+			uint8_t			irq_index,
+			uint8_t			en);
+
+/**
+ * dprc_get_irq_enable() - Get overall interrupt state.
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @token:	Token of DPRC object
+ * @irq_index:  The interrupt index to configure
+ * @en:		Returned interrupt state - enable = 1, disable = 0
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dprc_get_irq_enable(struct fsl_mc_io	*mc_io,
+			uint16_t		token,
+			uint8_t			irq_index,
+			uint8_t			*en);
+
+/**
+ * dprc_set_irq_mask() - Set interrupt mask.
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @token:	Token of DPRC object
+ * @irq_index:	The interrupt index to configure
+ * @mask:	event mask to trigger interrupt;
+ *			each bit:
+ *				0 = ignore event
+ *				1 = consider event for asserting irq
+ *
+ * Every interrupt can have up to 32 causes and the interrupt model supports
+ * masking/unmasking each cause independently
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dprc_set_irq_mask(struct fsl_mc_io	*mc_io,
+		      uint16_t		token,
+		      uint8_t		irq_index,
+		      uint32_t		mask);
+
+/**
+ * dprc_get_irq_mask() - Get interrupt mask.
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @token:	Token of DPRC object
+ * @irq_index:	The interrupt index to configure
+ * @mask:	Returned event mask to trigger interrupt
+ *
+ * Every interrupt can have up to 32 causes and the interrupt model supports
+ * masking/unmasking each cause independently
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dprc_get_irq_mask(struct fsl_mc_io	*mc_io,
+		      uint16_t		token,
+		      uint8_t		irq_index,
+		      uint32_t		*mask);
+
+/**
+ * dprc_get_irq_status() - Get the current status of any pending interrupts.
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @token:	Token of DPRC object
+ * @irq_index:	The interrupt index to configure
+ * @status:	Returned interrupts status - one bit per cause:
+ *			0 = no interrupt pending
+ *			1 = interrupt pending
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dprc_get_irq_status(struct fsl_mc_io	*mc_io,
+			uint16_t		token,
+			uint8_t			irq_index,
+			uint32_t		*status);
+
+/**
+ * dprc_clear_irq_status() - Clear a pending interrupt's status
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @token:	Token of DPRC object
+ * @irq_index:	The interrupt index to configure
+ * @status:	bits to clear (W1C) - one bit per cause:
+ *					0 = don't change
+ *					1 = clear status bit
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dprc_clear_irq_status(struct fsl_mc_io	*mc_io,
+			  uint16_t		token,
+			  uint8_t		irq_index,
+			  uint32_t		status);
+
+/**
+ * struct dprc_attributes - Container attributes
+ * @container_id: Container's ID
+ * @icid: Container's ICID
+ * @portal_id: Container's portal ID
+ * @options: Container's options as set at container's creation
+ * @version: DPRC version
+ */
+struct dprc_attributes {
+	int container_id;
+	uint16_t icid;
+	int portal_id;
+	uint64_t options;
+	/**
+	 * struct version - DPRC version
+	 * @major: DPRC major version
+	 * @minor: DPRC minor version
+	 */
+	struct {
+		uint16_t major;
+		uint16_t minor;
+	} version;
+};
+
+/**
+ * dprc_get_attributes() - Obtains container attributes
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @token:	Token of DPRC object
+ * @attributes	Returned container attributes
+ *
+ * Return:     '0' on Success; Error code otherwise.
+ */
+int dprc_get_attributes(struct fsl_mc_io	*mc_io,
+			uint16_t		token,
+			struct dprc_attributes	*attributes);
+
+/**
+ * dprc_set_res_quota() - Set allocation policy for a specific resource/object
+ *		type in a child container
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @token:	Token of DPRC object
+ * @child_container_id:	ID of the child container
+ * @type:	Resource/object type
+ * @quota:	Sets the maximum number of resources of	the selected type
+ *		that the child container is allowed to allocate from its parent;
+ *		when quota is set to -1, the policy is the same as container's
+ *		general policy.
+ *
+ * Allocation policy determines whether or not a container may allocate
+ * resources from its parent. Each container has a 'global' allocation policy
+ * that is set when the container is created.
+ *
+ * This function sets allocation policy for a specific resource type.
+ * The default policy for all resource types matches the container's 'global'
+ * allocation policy.
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ *
+ * @warning	Only the parent container is allowed to change a child policy.
+ */
+int dprc_set_res_quota(struct fsl_mc_io	*mc_io,
+		       uint16_t		token,
+		       int		child_container_id,
+		       char		*type,
+		       uint16_t		quota);
+
+/**
+ * dprc_get_res_quota() - Gets the allocation policy of a specific
+ *		resource/object type in a child container
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @token:	Token of DPRC object
+ * @child_container_id;	ID of the child container
+ * @type:	resource/object type
+ * @quota:	Returnes the maximum number of resources of the selected type
+ *		that the child container is allowed to allocate from the parent;
+ *		when quota is set to -1, the policy is the same as container's
+ *		general policy.
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dprc_get_res_quota(struct fsl_mc_io	*mc_io,
+		       uint16_t		token,
+		       int		child_container_id,
+		       char		*type,
+		       uint16_t		*quota);
+
+/* Resource request options */
+
+/* Explicit resource ID request - The requested objects/resources
+ * are explicit and sequential (in case of resources).
+ * The base ID is given at res_req at base_align field
+ */
+#define DPRC_RES_REQ_OPT_EXPLICIT		0x00000001
+
+/* Aligned resources request - Relevant only for resources
+ * request (and not objects). Indicates that resources base ID should be
+ * sequential and aligned to the value given at dprc_res_req base_align field
+ */
+#define DPRC_RES_REQ_OPT_ALIGNED		0x00000002
+
+/* Plugged Flag - Relevant only for object assignment request.
+ * Indicates that after all objects assigned. An interrupt will be invoked at
+ * the relevant GPP. The assigned object will be marked as plugged.
+ * plugged objects can't be assigned from their container
+ */
+#define DPRC_RES_REQ_OPT_PLUGGED		0x00000004
+
+/**
+ * struct dprc_res_req - Resource request descriptor, to be used in assignment
+ *			or un-assignment of resources and objects.
+ * @type: Resource/object type: Represent as a NULL terminated string.
+ *	This string may received by using dprc_get_pool() to get resource
+ *	type and dprc_get_obj() to get object type;
+ *	Note: it is not possible to assign/un-assign DPRC objects
+ * @num: Number of resources
+ * @options: Request options: combination of DPRC_RES_REQ_OPT_ options
+ * @id_base_align: In case of explicit assignment (DPRC_RES_REQ_OPT_EXPLICIT
+ *		is set at option), this field represents the required base ID
+ *		for resource allocation; In case of aligned assignment
+ *		(DPRC_RES_REQ_OPT_ALIGNED is set at option), this field
+ *		indicates the required alignment for the resource ID(s) -
+ *		use 0 if there is no alignment or explicit ID requirements
+ */
+struct dprc_res_req {
+	char type[16];
+	uint32_t num;
+	uint32_t options;
+	int id_base_align;
+};
+
+/**
+ * dprc_assign() - Assigns objects or resource to a child container.
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @token:	Token of DPRC object
+ * @container_id: ID of the child container
+ * @res_req:	Describes the type and amount of resources to
+ *			assign to the given container
+ *
+ * Assignment is usually done by a parent (this DPRC) to one of its child
+ * containers.
+ *
+ * According to the DPRC allocation policy, the assigned resources may be taken
+ * (allocated) from the container's ancestors, if not enough resources are
+ * available in the container itself.
+ *
+ * The type of assignment depends on the dprc_res_req options, as follows:
+ * - DPRC_RES_REQ_OPT_EXPLICIT: indicates that assigned resources should have
+ *   the explicit base ID specified at the id_base_align field of res_req.
+ * - DPRC_RES_REQ_OPT_ALIGNED: indicates that the assigned resources should be
+ *   aligned to the value given at id_base_align field of res_req.
+ * - DPRC_RES_REQ_OPT_PLUGGED: Relevant only for object assignment,
+ *   and indicates that the object must be set to the plugged state.
+ *
+ * A container may use this function with its own ID in order to change a
+ * object state to plugged or unplugged.
+ *
+ * If IRQ information has been set in the child DPRC, it will signal an
+ * interrupt following every change in its object assignment.
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dprc_assign(struct fsl_mc_io	*mc_io,
+		uint16_t		token,
+		int			container_id,
+		struct dprc_res_req	*res_req);
+
+/**
+ * dprc_unassign() - Un-assigns objects or resources from a child container
+ *		and moves them into this (parent) DPRC.
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @token:	Token of DPRC object
+ * @child_container_id:	ID of the child container
+ * @res_req:	Describes the type and amount of resources to un-assign from
+ *		the child container
+ *
+ * Un-assignment of objects can succeed only if the object is not in the
+ * plugged or opened state.
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dprc_unassign(struct fsl_mc_io	*mc_io,
+		  uint16_t		token,
+		  int			child_container_id,
+		  struct dprc_res_req	*res_req);
+
+/**
+ * dprc_get_pool_count() - Get the number of dprc's pools
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @token:	Token of DPRC object
+ * @pool_count:	Returned number of resource pools in the dprc
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dprc_get_pool_count(struct fsl_mc_io	*mc_io,
+			uint16_t		token,
+			int			*pool_count);
+
+/**
+ * dprc_get_pool() - Get the type (string) of a certain dprc's pool
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @token:	Token of DPRC object
+ * @pool_index;	Index of the pool to be queried (< pool_count)
+ * @type:	The type of the pool
+ *
+ * The pool types retrieved one by one by incrementing
+ * pool_index up to (not including) the value of pool_count returned
+ * from dprc_get_pool_count(). dprc_get_pool_count() must
+ * be called prior to dprc_get_pool().
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dprc_get_pool(struct fsl_mc_io	*mc_io,
+		  uint16_t		token,
+		  int			pool_index,
+		  char			*type);
+
+/**
+ * dprc_get_obj_count() - Obtains the number of objects in the DPRC
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @token:	Token of DPRC object
+ * @obj_count:	Number of objects assigned to the DPRC
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dprc_get_obj_count(struct fsl_mc_io *mc_io, uint16_t token, int *obj_count);
+
+/* Objects Attributes Flags */
+
+/* Opened state - Indicates that an object is open by at least one owner */
+#define DPRC_OBJ_STATE_OPEN		0x00000001
+/* Plugged state - Indicates that the object is plugged */
+#define DPRC_OBJ_STATE_PLUGGED		0x00000002
+
+/**
+ * struct dprc_obj_desc - Object descriptor, returned from dprc_get_obj()
+ * @type: Type of object: NULL terminated string
+ * @id: ID of logical object resource
+ * @vendor: Object vendor identifier
+ * @ver_major: Major version number
+ * @ver_minor:  Minor version number
+ * @irq_count: Number of interrupts supported by the object
+ * @region_count: Number of mappable regions supported by the object
+ * @state: Object state: combination of DPRC_OBJ_STATE_ states
+ */
+struct dprc_obj_desc {
+	char type[16];
+	int id;
+	uint16_t vendor;
+	uint16_t ver_major;
+	uint16_t ver_minor;
+	uint8_t irq_count;
+	uint8_t region_count;
+	uint32_t state;
+};
+
+/**
+ * dprc_get_obj() - Get general information on an object
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @token:	Token of DPRC object
+ * @obj_index:	Index of the object to be queried (< obj_count)
+ * @obj_desc:	Returns the requested object descriptor
+ *
+ * The object descriptors are retrieved one by one by incrementing
+ * obj_index up to (not including) the value of obj_count returned
+ * from dprc_get_obj_count(). dprc_get_obj_count() must
+ * be called prior to dprc_get_obj().
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dprc_get_obj(struct fsl_mc_io	*mc_io,
+		 uint16_t		token,
+		 int			obj_index,
+		 struct dprc_obj_desc	*obj_desc);
+
+/**
+ * dprc_get_res_count() - Obtains the number of free resources that are assigned
+ *		to this container, by pool type
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @token:	Token of DPRC object
+ * @type:	pool type
+ * @res_count:	Returned number of free resources of the given
+ *			resource type that are assigned to this DPRC
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dprc_get_res_count(struct fsl_mc_io	*mc_io,
+		       uint16_t		token,
+		       char		*type,
+		       int		*res_count);
+
+/**
+ * enum dprc_iter_status - Iteration status
+ * @DPRC_ITER_STATUS_FIRST: Perform first iteration
+ * @DPRC_ITER_STATUS_MORE: Indicates more/next iteration is needed
+ * @DPRC_ITER_STATUS_LAST: Indicates last iteration
+ */
+enum dprc_iter_status {
+	DPRC_ITER_STATUS_FIRST = 0,
+	DPRC_ITER_STATUS_MORE = 1,
+	DPRC_ITER_STATUS_LAST = 2
+};
+
+/**
+ * struct dprc_res_ids_range_desc - Resource ID range descriptor
+ * @base_id: Base resource ID of this range
+ * @last_id: Last resource ID of this range
+ * @iter_status: Iteration status - should be set to DPRC_ITER_STATUS_FIRST at
+ *	first iteration; while the returned marker is DPRC_ITER_STATUS_MORE,
+ *	additional iterations are needed, until the returned marker is
+ *	DPRC_ITER_STATUS_LAST
+ */
+struct dprc_res_ids_range_desc {
+	int base_id;
+	int last_id;
+	enum dprc_iter_status iter_status;
+};
+
+/**
+ * dprc_get_res_ids() - Obtains IDs of free resources in the container
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @token:	Token of DPRC object
+ * @type:	pool type
+ * @range_desc:	range descriptor
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dprc_get_res_ids(struct fsl_mc_io			*mc_io,
+		     uint16_t				token,
+		     char				*type,
+		     struct dprc_res_ids_range_desc	*range_desc);
+
+/**
+ * dprc_get_portal_paddr() - Get the physical address of MC portals
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @token:	Token of DPRC object
+ * @portal_id:	MC portal ID
+ * @portal_addr: The physical address of the MC portal ID
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dprc_get_portal_paddr(struct fsl_mc_io	*mc_io,
+			  uint16_t		token,
+			  int			portal_id,
+			  uint64_t		*portal_addr);
+
+/**
+ * struct dprc_region_desc - Mappable region descriptor
+ * @base_paddr: Region base physical address
+ * @size: Region size (in bytes)
+ */
+struct dprc_region_desc {
+	uint64_t base_paddr;
+	uint32_t size;
+};
+
+/**
+ * dprc_get_obj_region() - Get region information for a specified object.
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @token:	Token of DPRC object
+ * @obj_type;	Object type as returned in dprc_get_obj()
+ * @obj_id:	Unique object instance as returned in dprc_get_obj()
+ * @region_index: The specific region to query
+ * @region_desc:  Returns the requested region descriptor
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dprc_get_obj_region(struct fsl_mc_io	*mc_io,
+			uint16_t		token,
+			char			*obj_type,
+			int			obj_id,
+			uint8_t			region_index,
+			struct dprc_region_desc	*region_desc);
+
+/**
+ * struct dprc_endpoint - Endpoint description for link connect/disconnect
+ *			operations
+ * @type: Endpoint object type: NULL terminated string
+ * @id: Endpoint object ID
+ * @interface_id: Interface ID; should be set for endpoints with multiple
+ *		interfaces ("dpsw", "dpdmux"); for others, always set to 0
+ */
+struct dprc_endpoint {
+	char type[16];
+	int id;
+	int interface_id;
+};
+
+/**
+ * dprc_connect() - Connect two endpoints to create a network link between them
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @token:	Token of DPRC object
+ * @endpoint1:	Endpoint 1 configuration parameters
+ * @endpoint2:	Endpoint 2 configuration parameters
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dprc_connect(struct fsl_mc_io		*mc_io,
+		 uint16_t			token,
+		 const struct dprc_endpoint	*endpoint1,
+		 const struct dprc_endpoint	*endpoint2);
+
+/**
+ * dprc_disconnect() - Disconnect one endpoint to remove its network connection
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @token:	Token of DPRC object
+ * @endpoint:	Endpoint configuration parameters
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dprc_disconnect(struct fsl_mc_io		*mc_io,
+		    uint16_t			token,
+		    const struct dprc_endpoint	*endpoint);
+
+/**
+* dprc_get_connection() - Get connected endpoint and link status if connection
+*			exists.
+* @mc_io		Pointer to MC portal's I/O object
+* @token		Token of DPRC object
+* @endpoint1	Endpoint 1 configuration parameters
+* @endpoint2	Returned endpoint 2 configuration parameters
+* @state:	Returned link state: 1 - link is up, 0 - link is down
+*
+* Return:     '0' on Success; -ENAVAIL if connection does not exist.
+*/
+int dprc_get_connection(struct fsl_mc_io		*mc_io,
+			uint16_t			token,
+			const struct dprc_endpoint	*endpoint1,
+			struct dprc_endpoint		*endpoint2,
+			int				*state);
+
+#endif /* _FSL_DPRC_H */
+
diff --git a/drivers/staging/fsl-mc/include/mc-cmd.h b/drivers/staging/fsl-mc/include/mc-cmd.h
new file mode 100644
index 0000000..32501e0
--- /dev/null
+++ b/drivers/staging/fsl-mc/include/mc-cmd.h
@@ -0,0 +1,113 @@
+/* Copyright 2013-2015 Freescale Semiconductor Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of the above-listed copyright holders nor the
+ * names of any contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+#ifndef __FSL_MC_CMD_H
+#define __FSL_MC_CMD_H
+
+#define MC_CMD_NUM_OF_PARAMS	7
+
+#define MAKE_UMASK64(_width) \
+	((uint64_t)((_width) < 64 ? ((uint64_t)1 << (_width)) - 1 : -1))
+
+static inline uint64_t mc_enc(int lsoffset, int width, uint64_t val)
+{
+	return (uint64_t)(((uint64_t)val & MAKE_UMASK64(width)) << lsoffset);
+}
+
+static inline uint64_t mc_dec(uint64_t val, int lsoffset, int width)
+{
+	return (uint64_t)((val >> lsoffset) & MAKE_UMASK64(width));
+}
+
+struct mc_command {
+	uint64_t header;
+	uint64_t params[MC_CMD_NUM_OF_PARAMS];
+};
+
+enum mc_cmd_status {
+	MC_CMD_STATUS_OK = 0x0, /* Completed successfully */
+	MC_CMD_STATUS_READY = 0x1, /* Ready to be processed */
+	MC_CMD_STATUS_AUTH_ERR = 0x3, /* Authentication error */
+	MC_CMD_STATUS_NO_PRIVILEGE = 0x4, /* No privilege */
+	MC_CMD_STATUS_DMA_ERR = 0x5, /* DMA or I/O error */
+	MC_CMD_STATUS_CONFIG_ERR = 0x6, /* Configuration error */
+	MC_CMD_STATUS_TIMEOUT = 0x7, /* Operation timed out */
+	MC_CMD_STATUS_NO_RESOURCE = 0x8, /* No resources */
+	MC_CMD_STATUS_NO_MEMORY = 0x9, /* No memory available */
+	MC_CMD_STATUS_BUSY = 0xA, /* Device is busy */
+	MC_CMD_STATUS_UNSUPPORTED_OP = 0xB, /* Unsupported operation */
+	MC_CMD_STATUS_INVALID_STATE = 0xC /* Invalid state */
+};
+
+#define MC_CMD_HDR_CMDID_O	52	/* Command ID field offset */
+#define MC_CMD_HDR_CMDID_S	12	/* Command ID field size */
+#define MC_CMD_HDR_TOKEN_O	38	/* Token field offset */
+#define MC_CMD_HDR_TOKEN_S	10	/* Token field size */
+#define MC_CMD_HDR_STATUS_O	16	/* Status field offset */
+#define MC_CMD_HDR_STATUS_S	8	/* Status field size*/
+#define MC_CMD_HDR_PRI_O	15	/* Priority field offset */
+#define MC_CMD_HDR_PRI_S	1	/* Priority field size */
+
+#define MC_CMD_HDR_READ_STATUS(_hdr) \
+	((enum mc_cmd_status)mc_dec((_hdr), \
+		MC_CMD_HDR_STATUS_O, MC_CMD_HDR_STATUS_S))
+
+#define MC_CMD_HDR_READ_TOKEN(_hdr) \
+	((uint16_t)mc_dec((_hdr), MC_CMD_HDR_TOKEN_O, MC_CMD_HDR_TOKEN_S))
+
+#define MC_CMD_PRI_LOW		0 /* Low Priority command indication */
+#define MC_CMD_PRI_HIGH		1 /* High Priority command indication */
+
+#define MC_EXT_OP(_ext, _param, _offset, _width, _type, _arg) \
+	((_ext)[_param] |= mc_enc((_offset), (_width), _arg))
+
+#define MC_CMD_OP(_cmd, _param, _offset, _width, _type, _arg) \
+	((_cmd).params[_param] |= mc_enc((_offset), (_width), _arg))
+
+#define MC_RSP_OP(_cmd, _param, _offset, _width, _type, _arg) \
+	(_arg = (_type)mc_dec(_cmd.params[_param], (_offset), (_width)))
+
+static inline uint64_t mc_encode_cmd_header(uint16_t cmd_id,
+					    uint8_t priority,
+					    uint16_t token)
+{
+	uint64_t hdr;
+
+	hdr = mc_enc(MC_CMD_HDR_CMDID_O, MC_CMD_HDR_CMDID_S, cmd_id);
+	hdr |= mc_enc(MC_CMD_HDR_TOKEN_O, MC_CMD_HDR_TOKEN_S, token);
+	hdr |= mc_enc(MC_CMD_HDR_PRI_O, MC_CMD_HDR_PRI_S, priority);
+	hdr |= mc_enc(MC_CMD_HDR_STATUS_O, MC_CMD_HDR_STATUS_S,
+		       MC_CMD_STATUS_READY);
+
+	return hdr;
+}
+
+#endif /* __FSL_MC_CMD_H */
diff --git a/drivers/staging/fsl-mc/include/mc-private.h b/drivers/staging/fsl-mc/include/mc-private.h
new file mode 100644
index 0000000..c045f49
--- /dev/null
+++ b/drivers/staging/fsl-mc/include/mc-private.h
@@ -0,0 +1,116 @@
+/*
+ * Freescale Management Complex (MC) bus private declarations
+ *
+ * Copyright (C) 2014 Freescale Semiconductor, Inc.
+ * Author: German Rivera <German.Rivera@freescale.com>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+#ifndef _FSL_MC_PRIVATE_H_
+#define _FSL_MC_PRIVATE_H_
+
+#include "../include/mc.h"
+#include <linux/mutex.h>
+#include <linux/stringify.h>
+
+#define FSL_MC_DPRC_DRIVER_NAME    "fsl_mc_dprc"
+
+#define FSL_MC_DEVICE_MATCH(_mc_dev, _obj_desc) \
+	(strcmp((_mc_dev)->obj_desc.type, (_obj_desc)->type) == 0 && \
+	 (_mc_dev)->obj_desc.id == (_obj_desc)->id)
+
+#define FSL_MC_IS_ALLOCATABLE(_obj_type) \
+	(strcmp(_obj_type, "dpbp") == 0 || \
+	 strcmp(_obj_type, "dpmcp") == 0 || \
+	 strcmp(_obj_type, "dpcon") == 0)
+
+/**
+ * struct fsl_mc - Private data of a "fsl,qoriq-mc" platform device
+ * @root_mc_bus_dev: MC object device representing the root DPRC
+ * @addr_translation_ranges: array of bus to system address translation ranges
+ */
+struct fsl_mc {
+	struct fsl_mc_device *root_mc_bus_dev;
+	uint8_t num_translation_ranges;
+	struct fsl_mc_addr_translation_range *translation_ranges;
+};
+
+/**
+ * struct fsl_mc_addr_translation_range - bus to system address translation
+ * range
+ * @start_mc_addr: Start MC address of the range being translated
+ * @end_mc_addr: MC address of the first byte after the range (last MC
+ * address of the range is end_mc_addr - 1)
+ * @start_phys_addr: system physical address corresponding to start_mc_addr
+ */
+struct fsl_mc_addr_translation_range {
+	uint64_t start_mc_addr;
+	uint64_t end_mc_addr;
+	phys_addr_t start_phys_addr;
+};
+
+/**
+ * struct fsl_mc_resource_pool - Pool of MC resources of a given
+ * type
+ * @type: type of resources in the pool
+ * @max_count: maximum number of resources in the pool
+ * @free_count: number of free resources in the pool
+ * @mutex: mutex to serialize access to the pool's free list
+ * @free_list: anchor node of list of free resources in the pool
+ * @mc_bus: pointer to the MC bus that owns this resource pool
+ */
+struct fsl_mc_resource_pool {
+	enum fsl_mc_pool_type type;
+	int16_t max_count;
+	int16_t free_count;
+	struct mutex mutex;	/* serializes access to free_list */
+	struct list_head free_list;
+	struct fsl_mc_bus *mc_bus;
+};
+
+/**
+ * struct fsl_mc_bus - logical bus that corresponds to a physical DPRC
+ * @mc_dev: fsl-mc device for the bus device itself.
+ * @resource_pools: array of resource pools (one pool per resource type)
+ * for this MC bus. These resources represent allocatable entities
+ * from the physical DPRC.
+ * @scan_mutex: Serializes bus scanning
+ */
+struct fsl_mc_bus {
+	struct fsl_mc_device mc_dev;
+	struct fsl_mc_resource_pool resource_pools[FSL_MC_NUM_POOL_TYPES];
+	struct mutex scan_mutex;    /* serializes bus scanning */
+};
+
+#define to_fsl_mc_bus(_mc_dev) \
+	container_of(_mc_dev, struct fsl_mc_bus, mc_dev)
+
+int __must_check fsl_mc_device_add(struct dprc_obj_desc *obj_desc,
+				   struct fsl_mc_io *mc_io,
+				   struct device *parent_dev,
+				   struct fsl_mc_device **new_mc_dev);
+
+void fsl_mc_device_remove(struct fsl_mc_device *mc_dev);
+
+int dprc_scan_container(struct fsl_mc_device *mc_bus_dev);
+
+int dprc_scan_objects(struct fsl_mc_device *mc_bus_dev);
+
+int __init dprc_driver_init(void);
+
+void __exit dprc_driver_exit(void);
+
+int __init fsl_mc_allocator_driver_init(void);
+
+void __exit fsl_mc_allocator_driver_exit(void);
+
+int __must_check fsl_mc_resource_allocate(struct fsl_mc_bus *mc_bus,
+					  enum fsl_mc_pool_type pool_type,
+					  struct fsl_mc_resource
+							  **new_resource);
+
+void fsl_mc_resource_free(struct fsl_mc_resource *resource);
+
+#endif /* _FSL_MC_PRIVATE_H_ */
diff --git a/drivers/staging/fsl-mc/include/mc-sys.h b/drivers/staging/fsl-mc/include/mc-sys.h
new file mode 100644
index 0000000..cb3b5a2
--- /dev/null
+++ b/drivers/staging/fsl-mc/include/mc-sys.h
@@ -0,0 +1,76 @@
+/* Copyright 2013-2014 Freescale Semiconductor Inc.
+ *
+ * Interface of the I/O services to send MC commands to the MC hardware
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the above-listed copyright holders nor the
+ *       names of any contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _FSL_MC_SYS_H
+#define _FSL_MC_SYS_H
+
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/io.h>
+#include <linux/dma-mapping.h>
+
+struct fsl_mc_resource;
+struct mc_command;
+
+/**
+ * struct fsl_mc_io - MC I/O object to be passed-in to mc_send_command()
+ * @dev: device associated with this Mc I/O object
+ * @flags: flags for mc_send_command()
+ * @portal_size: MC command portal size in bytes
+ * @portal_phys_addr: MC command portal physical address
+ * @portal_virt_addr: MC command portal virtual address
+ * @resource: generic resource associated with the MC portal if
+ * the MC portal came from a resource pool, or NULL if the MC portal
+ * is permanently bound to a device (e.g., a DPRC)
+ */
+struct fsl_mc_io {
+	struct device *dev;
+	uint32_t flags;
+	uint32_t portal_size;
+	phys_addr_t portal_phys_addr;
+	void __iomem *portal_virt_addr;
+	struct fsl_mc_resource *resource;
+};
+
+int __must_check fsl_create_mc_io(struct device *dev,
+				  phys_addr_t mc_portal_phys_addr,
+				  uint32_t mc_portal_size,
+				  struct fsl_mc_resource *resource,
+				  uint32_t flags, struct fsl_mc_io **new_mc_io);
+
+void fsl_destroy_mc_io(struct fsl_mc_io *mc_io);
+
+int mc_send_command(struct fsl_mc_io *mc_io, struct mc_command *cmd);
+
+#endif /* _FSL_MC_SYS_H */
diff --git a/drivers/staging/fsl-mc/include/mc.h b/drivers/staging/fsl-mc/include/mc.h
new file mode 100644
index 0000000..fa02ef0
--- /dev/null
+++ b/drivers/staging/fsl-mc/include/mc.h
@@ -0,0 +1,201 @@
+/*
+ * Freescale Management Complex (MC) bus public interface
+ *
+ * Copyright (C) 2014 Freescale Semiconductor, Inc.
+ * Author: German Rivera <German.Rivera@freescale.com>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+#ifndef _FSL_MC_H_
+#define _FSL_MC_H_
+
+#include <linux/device.h>
+#include <linux/mod_devicetable.h>
+#include <linux/list.h>
+#include "../include/dprc.h"
+
+#define FSL_MC_VENDOR_FREESCALE	0x1957
+
+struct fsl_mc_device;
+struct fsl_mc_io;
+
+/**
+ * struct fsl_mc_driver - MC object device driver object
+ * @driver: Generic device driver
+ * @match_id_table: table of supported device matching Ids
+ * @probe: Function called when a device is added
+ * @remove: Function called when a device is removed
+ * @shutdown: Function called at shutdown time to quiesce the device
+ * @suspend: Function called when a device is stopped
+ * @resume: Function called when a device is resumed
+ *
+ * Generic DPAA device driver object for device drivers that are registered
+ * with a DPRC bus. This structure is to be embedded in each device-specific
+ * driver structure.
+ */
+struct fsl_mc_driver {
+	struct device_driver driver;
+	const struct fsl_mc_device_match_id *match_id_table;
+	int (*probe)(struct fsl_mc_device *dev);
+	int (*remove)(struct fsl_mc_device *dev);
+	void (*shutdown)(struct fsl_mc_device *dev);
+	int (*suspend)(struct fsl_mc_device *dev, pm_message_t state);
+	int (*resume)(struct fsl_mc_device *dev);
+};
+
+#define to_fsl_mc_driver(_drv) \
+	container_of(_drv, struct fsl_mc_driver, driver)
+
+/**
+ * struct fsl_mc_device_match_id - MC object device Id entry for driver matching
+ * @vendor: vendor ID
+ * @obj_type: MC object type
+ * @ver_major: MC object version major number
+ * @ver_minor: MC object version minor number
+ *
+ * Type of entries in the "device Id" table for MC object devices supported by
+ * a MC object device driver. The last entry of the table has vendor set to 0x0
+ */
+struct fsl_mc_device_match_id {
+	uint16_t vendor;
+	const char obj_type[16];
+	uint32_t ver_major;
+	uint32_t ver_minor;
+};
+
+/**
+ * enum fsl_mc_pool_type - Types of allocatable MC bus resources
+ *
+ * Entries in these enum are used as indices in the array of resource
+ * pools of an fsl_mc_bus object.
+ */
+enum fsl_mc_pool_type {
+	FSL_MC_POOL_DPMCP = 0x0,    /* corresponds to "dpmcp" in the MC */
+	FSL_MC_POOL_DPBP,	    /* corresponds to "dpbp" in the MC */
+	FSL_MC_POOL_DPCON,	    /* corresponds to "dpcon" in the MC */
+
+	/*
+	 * NOTE: New resource pool types must be added before this entry
+	 */
+	FSL_MC_NUM_POOL_TYPES
+};
+
+/**
+ * struct fsl_mc_resource - MC generic resource
+ * @type: type of resource
+ * @id: unique MC resource Id within the resources of the same type
+ * @data: pointer to resource-specific data if the resource is currently
+ * allocated, or NULL if the resource is not currently allocated.
+ * @parent_pool: pointer to the parent resource pool from which this
+ * resource is allocated from.
+ * @node: Node in the free list of the corresponding resource pool
+ *
+ * NOTE: This structure is to be embedded as a field of specific
+ * MC resource structures.
+ */
+struct fsl_mc_resource {
+	enum fsl_mc_pool_type type;
+	int32_t id;
+	void *data;
+	struct fsl_mc_resource_pool *parent_pool;
+	struct list_head node;
+};
+
+/**
+ * Bit masks for a MC object device (struct fsl_mc_device) flags
+ */
+#define FSL_MC_IS_DPRC	0x0001
+
+/**
+ * Default DMA mask for devices on a fsl-mc bus
+ */
+#define FSL_MC_DEFAULT_DMA_MASK	(~0ULL)
+
+/**
+ * struct fsl_mc_device - MC object device object
+ * @dev: Linux driver model device object
+ * @dma_mask: Default DMA mask
+ * @flags: MC object device flags
+ * @icid: Isolation context ID for the device
+ * @mc_handle: MC handle for the corresponding MC object opened
+ * @mc_io: Pointer to MC IO object assigned to this device or
+ * NULL if none.
+ * @obj_desc: MC description of the DPAA device
+ * @regions: pointer to array of MMIO region entries
+ * @resource: generic resource associated with this MC object device, if any.
+ *
+ * Generic device object for MC object devices that are "attached" to a
+ * MC bus.
+ *
+ * NOTES:
+ * - For a non-DPRC object its icid is the same as its parent DPRC's icid.
+ * - The SMMU notifier callback gets invoked after device_add() has been
+ *   called for an MC object device, but before the device-specific probe
+ *   callback gets called.
+ * - DP_OBJ_DPRC objects are the only MC objects that have built-in MC
+ *   portals. For all other MC objects, their device drivers are responsible for
+ *   allocating MC portals for them by calling fsl_mc_portal_allocate().
+ * - Some types of MC objects (e.g., DP_OBJ_DPBP, DP_OBJ_DPCON) are
+ *   treated as resources that can be allocated/deallocated from the
+ *   corresponding resource pool in the object's parent DPRC, using the
+ *   fsl_mc_object_allocate()/fsl_mc_object_free() functions. These MC objects
+ *   are known as "allocatable" objects. For them, the corresponding
+ *   fsl_mc_device's 'resource' points to the associated resource object.
+ *   For MC objects that are not allocatable (e.g., DP_OBJ_DPRC, DP_OBJ_DPNI),
+ *   'resource' is NULL.
+ */
+struct fsl_mc_device {
+	struct device dev;
+	uint64_t dma_mask;
+	uint16_t flags;
+	uint16_t icid;
+	uint16_t mc_handle;
+	struct fsl_mc_io *mc_io;
+	struct dprc_obj_desc obj_desc;
+	struct resource *regions;
+	struct fsl_mc_resource *resource;
+};
+
+#define to_fsl_mc_device(_dev) \
+	container_of(_dev, struct fsl_mc_device, dev)
+
+/*
+ * module_fsl_mc_driver() - Helper macro for drivers that don't do
+ * anything special in module init/exit.  This eliminates a lot of
+ * boilerplate.  Each module may only use this macro once, and
+ * calling it replaces module_init() and module_exit()
+ */
+#define module_fsl_mc_driver(__fsl_mc_driver) \
+	module_driver(__fsl_mc_driver, fsl_mc_driver_register, \
+		      fsl_mc_driver_unregister)
+
+/*
+ * Macro to avoid include chaining to get THIS_MODULE
+ */
+#define fsl_mc_driver_register(drv) \
+	__fsl_mc_driver_register(drv, THIS_MODULE)
+
+int __must_check __fsl_mc_driver_register(struct fsl_mc_driver *fsl_mc_driver,
+					  struct module *owner);
+
+void fsl_mc_driver_unregister(struct fsl_mc_driver *driver);
+
+int __must_check fsl_mc_portal_allocate(struct fsl_mc_device *mc_dev,
+					uint16_t mc_io_flags,
+					struct fsl_mc_io **new_mc_io);
+
+void fsl_mc_portal_free(struct fsl_mc_io *mc_io);
+
+int fsl_mc_portal_reset(struct fsl_mc_io *mc_io);
+
+int __must_check fsl_mc_object_allocate(struct fsl_mc_device *mc_dev,
+					enum fsl_mc_pool_type pool_type,
+					struct fsl_mc_device **new_mc_adev);
+
+void fsl_mc_object_free(struct fsl_mc_device *mc_adev);
+
+extern struct bus_type fsl_mc_bus_type;
+
+#endif /* _FSL_MC_H_ */
diff --git a/drivers/staging/ft1000/ft1000-pcmcia/ft1000_cs.c b/drivers/staging/ft1000/ft1000-pcmcia/ft1000_cs.c
index 922478e..e5cc5be 100644
--- a/drivers/staging/ft1000/ft1000-pcmcia/ft1000_cs.c
+++ b/drivers/staging/ft1000/ft1000-pcmcia/ft1000_cs.c
@@ -155,15 +155,4 @@ static struct pcmcia_driver ft1000_cs_driver = {
 	.resume		= ft1000_resume,
 };
 
-static int __init init_ft1000_cs(void)
-{
-	return pcmcia_register_driver(&ft1000_cs_driver);
-}
-
-static void __exit exit_ft1000_cs(void)
-{
-	pcmcia_unregister_driver(&ft1000_cs_driver);
-}
-
-module_init(init_ft1000_cs);
-module_exit(exit_ft1000_cs);
+module_pcmcia_driver(ft1000_cs_driver);
diff --git a/drivers/staging/ft1000/ft1000-pcmcia/ft1000_dnld.c b/drivers/staging/ft1000/ft1000-pcmcia/ft1000_dnld.c
index 06b0e9c..83683e9 100644
--- a/drivers/staging/ft1000/ft1000-pcmcia/ft1000_dnld.c
+++ b/drivers/staging/ft1000/ft1000-pcmcia/ft1000_dnld.c
@@ -116,7 +116,7 @@ struct dsp_image_info {
 
 void card_bootload(struct net_device *dev)
 {
-	struct ft1000_info *info = (struct ft1000_info *)netdev_priv(dev);
+	struct ft1000_info *info = netdev_priv(dev);
 	unsigned long flags;
 	u32 *pdata;
 	u32 size;
@@ -148,7 +148,7 @@ void card_bootload(struct net_device *dev)
 
 u16 get_handshake(struct net_device *dev, u16 expected_value)
 {
-	struct ft1000_info *info = (struct ft1000_info *)netdev_priv(dev);
+	struct ft1000_info *info = netdev_priv(dev);
 	u16 handshake;
 	u32 tempx;
 	int loopcnt;
@@ -182,7 +182,7 @@ u16 get_handshake(struct net_device *dev, u16 expected_value)
 
 void put_handshake(struct net_device *dev, u16 handshake_value)
 {
-	struct ft1000_info *info = (struct ft1000_info *)netdev_priv(dev);
+	struct ft1000_info *info = netdev_priv(dev);
 	u32 tempx;
 
 	if (info->AsicID == ELECTRABUZZ_ID) {
@@ -198,7 +198,7 @@ void put_handshake(struct net_device *dev, u16 handshake_value)
 
 u16 get_request_type(struct net_device *dev)
 {
-	struct ft1000_info *info = (struct ft1000_info *)netdev_priv(dev);
+	struct ft1000_info *info = netdev_priv(dev);
 	u16 request_type;
 	u32 tempx;
 
@@ -217,7 +217,7 @@ u16 get_request_type(struct net_device *dev)
 
 long get_request_value(struct net_device *dev)
 {
-	struct ft1000_info *info = (struct ft1000_info *)netdev_priv(dev);
+	struct ft1000_info *info = netdev_priv(dev);
 	long value;
 	u16 w_val;
 
@@ -246,7 +246,7 @@ long get_request_value(struct net_device *dev)
 
 void put_request_value(struct net_device *dev, long lvalue)
 {
-	struct ft1000_info *info = (struct ft1000_info *)netdev_priv(dev);
+	struct ft1000_info *info = netdev_priv(dev);
 	u16 size;
 	u32 tempx;
 
@@ -276,8 +276,8 @@ u16 hdr_checksum(struct pseudo_hdr *pHdr)
 	u16 *usPtr = (u16 *)pHdr;
 	u16 chksum;
 
-	chksum = ((((((usPtr[0] ^ usPtr[1]) ^ usPtr[2]) ^ usPtr[3]) ^
-		    usPtr[4]) ^ usPtr[5]) ^ usPtr[6]);
+	chksum = (((((usPtr[0] ^ usPtr[1]) ^ usPtr[2]) ^ usPtr[3]) ^
+		    usPtr[4]) ^ usPtr[5]) ^ usPtr[6];
 
 	return chksum;
 }
@@ -285,7 +285,7 @@ u16 hdr_checksum(struct pseudo_hdr *pHdr)
 int card_download(struct net_device *dev, const u8 *pFileStart,
 		  size_t FileLength)
 {
-	struct ft1000_info *info = (struct ft1000_info *)netdev_priv(dev);
+	struct ft1000_info *info = netdev_priv(dev);
 	int Status = SUCCESS;
 	u32 uiState;
 	u16 handshake;
@@ -713,10 +713,10 @@ int card_download(struct net_device *dev, const u8 *pFileStart,
 
 				/* Get buffer for provisioning data */
 				pbuffer =
-					kmalloc((usHdrLength + sizeof(struct pseudo_hdr)),
+					kmalloc(usHdrLength + sizeof(struct pseudo_hdr),
 						GFP_ATOMIC);
 				if (pbuffer) {
-					memcpy(pbuffer, (void *)pUcFile,
+					memcpy(pbuffer, pUcFile,
 					       (u32) (usHdrLength +
 						      sizeof(struct pseudo_hdr)));
 					/* link provisioning data */
diff --git a/drivers/staging/ft1000/ft1000-pcmcia/ft1000_hw.c b/drivers/staging/ft1000/ft1000-pcmcia/ft1000_hw.c
index 017c3b9..eecfa37 100644
--- a/drivers/staging/ft1000/ft1000-pcmcia/ft1000_hw.c
+++ b/drivers/staging/ft1000/ft1000-pcmcia/ft1000_hw.c
@@ -28,8 +28,8 @@
 #include <linux/timer.h>
 #include <linux/interrupt.h>
 #include <linux/in.h>
-#include <asm/io.h>
-#include <asm/bitops.h>
+#include <linux/io.h>
+#include <linux/bitops.h>
 
 #include <linux/netdevice.h>
 #include <linux/etherdevice.h>
@@ -67,8 +67,7 @@ static void ft1000_disable_interrupts(struct net_device *dev);
 
 /* new kernel */
 MODULE_AUTHOR("");
-MODULE_DESCRIPTION
-("Support for Flarion Flash OFDM NIC Device. Support for PCMCIA when used with ft1000_cs.");
+MODULE_DESCRIPTION("Support for Flarion Flash OFDM NIC Device. Support for PCMCIA when used with ft1000_cs.");
 MODULE_LICENSE("GPL");
 MODULE_SUPPORTED_DEVICE("FT1000");
 
@@ -267,7 +266,8 @@ void ft1000_write_dpram_mag_32(struct net_device *dev, int offset, u32 value)
 /*---------------------------------------------------------------------------
 
   Function:   ft1000_enable_interrupts
-  Description: This function will enable interrupts base on the current interrupt mask.
+  Description: This function will enable interrupts base on the current
+	       interrupt mask.
   Input:
   dev    - device structure
   Output:
@@ -303,6 +303,41 @@ static void ft1000_disable_interrupts(struct net_device *dev)
 }
 
 /*---------------------------------------------------------------------------
+  Function:	ft1000_read_dsp_timer
+  Description:	This function reads the DSP timer and stores its value in the
+		DSP_TIME field of the ft1000_info struct passed as argument
+  Input:
+  dev    - device structure
+  info   - ft1000_info structure
+  Output:
+  None.
+
+  -------------------------------------------------------------------------*/
+static void ft1000_read_dsp_timer(struct net_device *dev,
+				  struct ft1000_info *info)
+{
+	if (info->AsicID == ELECTRABUZZ_ID) {
+		info->DSP_TIME[0] = ft1000_read_dpram(dev, FT1000_DSP_TIMER0);
+		info->DSP_TIME[1] = ft1000_read_dpram(dev, FT1000_DSP_TIMER1);
+		info->DSP_TIME[2] = ft1000_read_dpram(dev, FT1000_DSP_TIMER2);
+		info->DSP_TIME[3] = ft1000_read_dpram(dev, FT1000_DSP_TIMER3);
+	} else {
+		info->DSP_TIME[0] =
+			ft1000_read_dpram_mag_16(dev, FT1000_MAG_DSP_TIMER0,
+						 FT1000_MAG_DSP_TIMER0_INDX);
+		info->DSP_TIME[1] =
+			ft1000_read_dpram_mag_16(dev, FT1000_MAG_DSP_TIMER1,
+						 FT1000_MAG_DSP_TIMER1_INDX);
+		info->DSP_TIME[2] =
+			ft1000_read_dpram_mag_16(dev, FT1000_MAG_DSP_TIMER2,
+						 FT1000_MAG_DSP_TIMER2_INDX);
+		info->DSP_TIME[3] =
+			ft1000_read_dpram_mag_16(dev, FT1000_MAG_DSP_TIMER3,
+						 FT1000_MAG_DSP_TIMER3_INDX);
+	}
+}
+
+/*---------------------------------------------------------------------------
 
   Function:   ft1000_reset_asic
   Description: This function will call the Card Service function to reset the
@@ -327,7 +362,7 @@ static void ft1000_reset_asic(struct net_device *dev)
 	 */
 	if (info->AsicID == MAGNEMITE_ID) {
 		ft1000_write_reg(dev, FT1000_REG_RESET,
-				 (DSP_RESET_BIT | ASIC_RESET_BIT));
+				 DSP_RESET_BIT | ASIC_RESET_BIT);
 	}
 	mdelay(1);
 	if (info->AsicID == ELECTRABUZZ_ID) {
@@ -364,6 +399,7 @@ static int ft1000_reset_card(struct net_device *dev)
 	int i;
 	unsigned long flags;
 	struct prov_record *ptr;
+	struct prov_record *tmp;
 
 	info->CardReady = 0;
 	info->ProgConStat = 0;
@@ -373,9 +409,8 @@ static int ft1000_reset_card(struct net_device *dev)
 	/* del_timer(&poll_timer); */
 
 	/* Make sure we free any memory reserve for provisioning */
-	while (list_empty(&info->prov_list) == 0) {
+	list_for_each_entry_safe(ptr, tmp, &info->prov_list, list) {
 		pr_debug("deleting provisioning record\n");
-		ptr = list_entry(info->prov_list.next, struct prov_record, list);
 		list_del(&ptr->list);
 		kfree(ptr->pprov_data);
 		kfree(ptr);
@@ -387,7 +422,7 @@ static int ft1000_reset_card(struct net_device *dev)
 	} else {
 		pr_debug("resetting ASIC and DSP\n");
 		ft1000_write_reg(dev, FT1000_REG_RESET,
-				 (DSP_RESET_BIT | ASIC_RESET_BIT));
+				 DSP_RESET_BIT | ASIC_RESET_BIT);
 	}
 
 	/* Copy DSP session record into info block if this is not a coldstart */
@@ -406,7 +441,8 @@ static int ft1000_reset_card(struct net_device *dev)
 					 FT1000_DPRAM_MAG_RX_BASE);
 			for (i = 0; i < MAX_DSP_SESS_REC / 2; i++) {
 				info->DSPSess.MagRec[i] =
-					inl(dev->base_addr + FT1000_REG_MAG_DPDATA);
+					inl(dev->base_addr
+						+ FT1000_REG_MAG_DPDATA);
 			}
 		}
 		spin_unlock_irqrestore(&info->dpram_lock, flags);
@@ -435,11 +471,14 @@ static int ft1000_reset_card(struct net_device *dev)
 		mdelay(10);
 		pr_debug("Take DSP out of reset\n");
 
-		/* Wait for 0xfefe indicating dsp ready before starting download */
+		/*
+		 * Wait for 0xfefe indicating dsp ready before starting
+		 * download
+		 */
 		for (i = 0; i < 50; i++) {
-			tempword =
-				ft1000_read_dpram_mag_16(dev, FT1000_MAG_DPRAM_FEFE,
-							 FT1000_MAG_DPRAM_FEFE_INDX);
+			tempword = ft1000_read_dpram_mag_16(dev,
+						FT1000_MAG_DPRAM_FEFE,
+						FT1000_MAG_DPRAM_FEFE_INDX);
 			if (tempword == 0xfefe)
 				break;
 			mdelay(20);
@@ -459,16 +498,15 @@ static int ft1000_reset_card(struct net_device *dev)
 	if (card_download(dev, fw_entry->data, fw_entry->size)) {
 		pr_debug("card download unsuccessful\n");
 		return false;
-	} else {
-		pr_debug("card download successful\n");
 	}
+	pr_debug("card download successful\n");
 
 	mdelay(10);
 
 	if (info->AsicID == ELECTRABUZZ_ID) {
 		/*
-		 * Need to initialize the FIFO length counter to zero in order to sync up
-		 * with the DSP
+		 * Need to initialize the FIFO length counter to zero in order
+		 * to sync up with the DSP
 		 */
 		info->fifo_cnt = 0;
 		ft1000_write_dpram(dev, FT1000_FIFO_LEN, info->fifo_cnt);
@@ -578,33 +616,7 @@ static void ft1000_hbchk(u_long data)
 		}
 		if (tempword != ho) {
 			pr_info("heartbeat failed - no ho detected\n");
-			if (info->AsicID == ELECTRABUZZ_ID) {
-				info->DSP_TIME[0] =
-					ft1000_read_dpram(dev, FT1000_DSP_TIMER0);
-				info->DSP_TIME[1] =
-					ft1000_read_dpram(dev, FT1000_DSP_TIMER1);
-				info->DSP_TIME[2] =
-					ft1000_read_dpram(dev, FT1000_DSP_TIMER2);
-				info->DSP_TIME[3] =
-					ft1000_read_dpram(dev, FT1000_DSP_TIMER3);
-			} else {
-				info->DSP_TIME[0] =
-					ft1000_read_dpram_mag_16(dev,
-								 FT1000_MAG_DSP_TIMER0,
-								 FT1000_MAG_DSP_TIMER0_INDX);
-				info->DSP_TIME[1] =
-					ft1000_read_dpram_mag_16(dev,
-								 FT1000_MAG_DSP_TIMER1,
-								 FT1000_MAG_DSP_TIMER1_INDX);
-				info->DSP_TIME[2] =
-					ft1000_read_dpram_mag_16(dev,
-								 FT1000_MAG_DSP_TIMER2,
-								 FT1000_MAG_DSP_TIMER2_INDX);
-				info->DSP_TIME[3] =
-					ft1000_read_dpram_mag_16(dev,
-								 FT1000_MAG_DSP_TIMER3,
-								 FT1000_MAG_DSP_TIMER3_INDX);
-			}
+			ft1000_read_dsp_timer(dev, info);
 			info->DrvErrNum = DSP_HB_INFO;
 			if (ft1000_reset_card(dev) == 0) {
 				pr_info("Hardware Failure Detected - PC Card disabled\n");
@@ -625,33 +637,7 @@ static void ft1000_hbchk(u_long data)
 
 		if (tempword & FT1000_DB_HB) {
 			pr_info("heartbeat doorbell not clear by firmware\n");
-			if (info->AsicID == ELECTRABUZZ_ID) {
-				info->DSP_TIME[0] =
-					ft1000_read_dpram(dev, FT1000_DSP_TIMER0);
-				info->DSP_TIME[1] =
-					ft1000_read_dpram(dev, FT1000_DSP_TIMER1);
-				info->DSP_TIME[2] =
-					ft1000_read_dpram(dev, FT1000_DSP_TIMER2);
-				info->DSP_TIME[3] =
-					ft1000_read_dpram(dev, FT1000_DSP_TIMER3);
-			} else {
-				info->DSP_TIME[0] =
-					ft1000_read_dpram_mag_16(dev,
-								 FT1000_MAG_DSP_TIMER0,
-								 FT1000_MAG_DSP_TIMER0_INDX);
-				info->DSP_TIME[1] =
-					ft1000_read_dpram_mag_16(dev,
-								 FT1000_MAG_DSP_TIMER1,
-								 FT1000_MAG_DSP_TIMER1_INDX);
-				info->DSP_TIME[2] =
-					ft1000_read_dpram_mag_16(dev,
-								 FT1000_MAG_DSP_TIMER2,
-								 FT1000_MAG_DSP_TIMER2_INDX);
-				info->DSP_TIME[3] =
-					ft1000_read_dpram_mag_16(dev,
-								 FT1000_MAG_DSP_TIMER3,
-								 FT1000_MAG_DSP_TIMER3_INDX);
-			}
+			ft1000_read_dsp_timer(dev, info);
 			info->DrvErrNum = DSP_HB_INFO;
 			if (ft1000_reset_card(dev) == 0) {
 				pr_info("Hardware Failure Detected - PC Card disabled\n");
@@ -665,8 +651,8 @@ static void ft1000_hbchk(u_long data)
 			return;
 		}
 		/*
-		 * Set dedicated area to hi and ring appropriate doorbell according
-		 * to hi/ho heartbeat protocol
+		 * Set dedicated area to hi and ring appropriate doorbell
+		 * according to hi/ho heartbeat protocol
 		 */
 		if (info->AsicID == ELECTRABUZZ_ID) {
 			ft1000_write_dpram(dev, FT1000_HI_HO, hi);
@@ -688,44 +674,20 @@ static void ft1000_hbchk(u_long data)
 			if (info->AsicID == ELECTRABUZZ_ID)
 				ft1000_write_dpram(dev, FT1000_HI_HO, hi);
 			else
-				ft1000_write_dpram_mag_16(dev, FT1000_MAG_HI_HO, hi_mag, FT1000_MAG_HI_HO_INDX);
+				ft1000_write_dpram_mag_16(dev, FT1000_MAG_HI_HO,
+						hi_mag, FT1000_MAG_HI_HO_INDX);
 
 			if (info->AsicID == ELECTRABUZZ_ID)
 				tempword = ft1000_read_dpram(dev, FT1000_HI_HO);
 			else
-				tempword = ntohs(ft1000_read_dpram_mag_16(dev, FT1000_MAG_HI_HO, FT1000_MAG_HI_HO_INDX));
-
+				tempword = ntohs(ft1000_read_dpram_mag_16(dev,
+							FT1000_MAG_HI_HO,
+							FT1000_MAG_HI_HO_INDX));
 		}
 
 		if (tempword != hi) {
 			pr_info("heartbeat failed - cannot write hi into DPRAM\n");
-			if (info->AsicID == ELECTRABUZZ_ID) {
-				info->DSP_TIME[0] =
-					ft1000_read_dpram(dev, FT1000_DSP_TIMER0);
-				info->DSP_TIME[1] =
-					ft1000_read_dpram(dev, FT1000_DSP_TIMER1);
-				info->DSP_TIME[2] =
-					ft1000_read_dpram(dev, FT1000_DSP_TIMER2);
-				info->DSP_TIME[3] =
-					ft1000_read_dpram(dev, FT1000_DSP_TIMER3);
-			} else {
-				info->DSP_TIME[0] =
-					ft1000_read_dpram_mag_16(dev,
-								 FT1000_MAG_DSP_TIMER0,
-								 FT1000_MAG_DSP_TIMER0_INDX);
-				info->DSP_TIME[1] =
-					ft1000_read_dpram_mag_16(dev,
-								 FT1000_MAG_DSP_TIMER1,
-								 FT1000_MAG_DSP_TIMER1_INDX);
-				info->DSP_TIME[2] =
-					ft1000_read_dpram_mag_16(dev,
-								 FT1000_MAG_DSP_TIMER2,
-								 FT1000_MAG_DSP_TIMER2_INDX);
-				info->DSP_TIME[3] =
-					ft1000_read_dpram_mag_16(dev,
-								 FT1000_MAG_DSP_TIMER3,
-								 FT1000_MAG_DSP_TIMER3_INDX);
-			}
+			ft1000_read_dsp_timer(dev, info);
 			info->DrvErrNum = DSP_HB_INFO;
 			if (ft1000_reset_card(dev) == 0) {
 				pr_info("Hardware Failure Detected - PC Card disabled\n");
@@ -756,7 +718,8 @@ static void ft1000_hbchk(u_long data)
   Output:
 
   -------------------------------------------------------------------------*/
-static void ft1000_send_cmd(struct net_device *dev, u16 *ptempbuffer, int size, u16 qtype)
+static void ft1000_send_cmd(struct net_device *dev, u16 *ptempbuffer, int size,
+			    u16 qtype)
 {
 	struct ft1000_info *info = netdev_priv(dev);
 	int i;
@@ -850,74 +813,73 @@ static bool ft1000_receive_cmd(struct net_device *dev, u16 *pbuffer,
 	unsigned long flags;
 
 	if (info->AsicID == ELECTRABUZZ_ID) {
-		size = (ft1000_read_dpram(dev, *pnxtph)) + sizeof(struct pseudo_hdr);
+		size = ft1000_read_dpram(dev, *pnxtph)
+			+ sizeof(struct pseudo_hdr);
 	} else {
-		size =
-			ntohs(ft1000_read_dpram_mag_16
-			      (dev, FT1000_MAG_PH_LEN,
-			       FT1000_MAG_PH_LEN_INDX)) + sizeof(struct pseudo_hdr);
+		size = ntohs(ft1000_read_dpram_mag_16(dev, FT1000_MAG_PH_LEN,
+						      FT1000_MAG_PH_LEN_INDX))
+				+ sizeof(struct pseudo_hdr);
 	}
 	if (size > maxsz) {
 		pr_debug("Invalid command length = %d\n", size);
 		return false;
+	}
+	ppseudohdr = (u16 *)pbuffer;
+	spin_lock_irqsave(&info->dpram_lock, flags);
+	if (info->AsicID == ELECTRABUZZ_ID) {
+		ft1000_write_reg(dev, FT1000_REG_DPRAM_ADDR,
+				 FT1000_DPRAM_RX_BASE + 2);
+		for (i = 0; i <= (size >> 1); i++) {
+			tempword =
+				ft1000_read_reg(dev, FT1000_REG_DPRAM_DATA);
+			*pbuffer++ = ntohs(tempword);
+		}
 	} else {
-		ppseudohdr = (u16 *)pbuffer;
-		spin_lock_irqsave(&info->dpram_lock, flags);
-		if (info->AsicID == ELECTRABUZZ_ID) {
-			ft1000_write_reg(dev, FT1000_REG_DPRAM_ADDR,
-					 FT1000_DPRAM_RX_BASE + 2);
-			for (i = 0; i <= (size >> 1); i++) {
-				tempword =
-					ft1000_read_reg(dev, FT1000_REG_DPRAM_DATA);
-				*pbuffer++ = ntohs(tempword);
-			}
-		} else {
-			ft1000_write_reg(dev, FT1000_REG_DPRAM_ADDR,
-					 FT1000_DPRAM_MAG_RX_BASE);
-			*pbuffer = inw(dev->base_addr + FT1000_REG_MAG_DPDATAH);
-			pr_debug("received data = 0x%x\n", *pbuffer);
-			pbuffer++;
-			ft1000_write_reg(dev, FT1000_REG_DPRAM_ADDR,
-					 FT1000_DPRAM_MAG_RX_BASE + 1);
-			for (i = 0; i <= (size >> 2); i++) {
-				*pbuffer =
-					inw(dev->base_addr +
-					    FT1000_REG_MAG_DPDATAL);
-				pbuffer++;
-				*pbuffer =
-					inw(dev->base_addr +
-					    FT1000_REG_MAG_DPDATAH);
-				pbuffer++;
-			}
-			/* copy odd aligned word */
-			*pbuffer = inw(dev->base_addr + FT1000_REG_MAG_DPDATAL);
-			pr_debug("received data = 0x%x\n", *pbuffer);
+		ft1000_write_reg(dev, FT1000_REG_DPRAM_ADDR,
+				 FT1000_DPRAM_MAG_RX_BASE);
+		*pbuffer = inw(dev->base_addr + FT1000_REG_MAG_DPDATAH);
+		pr_debug("received data = 0x%x\n", *pbuffer);
+		pbuffer++;
+		ft1000_write_reg(dev, FT1000_REG_DPRAM_ADDR,
+				 FT1000_DPRAM_MAG_RX_BASE + 1);
+		for (i = 0; i <= (size >> 2); i++) {
+			*pbuffer =
+				inw(dev->base_addr +
+				    FT1000_REG_MAG_DPDATAL);
 			pbuffer++;
-			*pbuffer = inw(dev->base_addr + FT1000_REG_MAG_DPDATAH);
-			pr_debug("received data = 0x%x\n", *pbuffer);
+			*pbuffer =
+				inw(dev->base_addr +
+				    FT1000_REG_MAG_DPDATAH);
 			pbuffer++;
 		}
-		if (size & 0x0001) {
-			/* copy odd byte from fifo */
-			tempword = ft1000_read_reg(dev, FT1000_REG_DPRAM_DATA);
-			*pbuffer = ntohs(tempword);
-		}
-		spin_unlock_irqrestore(&info->dpram_lock, flags);
+		/* copy odd aligned word */
+		*pbuffer = inw(dev->base_addr + FT1000_REG_MAG_DPDATAL);
+		pr_debug("received data = 0x%x\n", *pbuffer);
+		pbuffer++;
+		*pbuffer = inw(dev->base_addr + FT1000_REG_MAG_DPDATAH);
+		pr_debug("received data = 0x%x\n", *pbuffer);
+		pbuffer++;
+	}
+	if (size & 0x0001) {
+		/* copy odd byte from fifo */
+		tempword = ft1000_read_reg(dev, FT1000_REG_DPRAM_DATA);
+		*pbuffer = ntohs(tempword);
+	}
+	spin_unlock_irqrestore(&info->dpram_lock, flags);
 
-		/*
-		 * Check if pseudo header checksum is good
-		 * Calculate pseudo header checksum
-		 */
-		tempword = *ppseudohdr++;
-		for (i = 1; i < 7; i++)
-			tempword ^= *ppseudohdr++;
-		if ((tempword != *ppseudohdr)) {
-			pr_debug("Pseudo header checksum mismatch\n");
-			/* Drop this message */
-			return false;
-		}
-		return true;
+	/*
+	 * Check if pseudo header checksum is good
+	 * Calculate pseudo header checksum
+	 */
+	tempword = *ppseudohdr++;
+	for (i = 1; i < 7; i++)
+		tempword ^= *ppseudohdr++;
+	if (tempword != *ppseudohdr) {
+		pr_debug("Pseudo header checksum mismatch\n");
+		/* Drop this message */
+		return false;
 	}
+	return true;
 }
 
 /*---------------------------------------------------------------------------
@@ -957,7 +919,10 @@ static void ft1000_proc_drvmsg(struct net_device *dev)
 
 	if (ft1000_receive_cmd(dev, &cmdbuffer[0], MAX_CMD_SQSIZE, &tempword)) {
 
-		/* Get the message type which is total_len + PSEUDO header + msgtype + message body */
+		/*
+		 * Get the message type which is total_len + PSEUDO header
+		 * + msgtype + message body
+		 */
 		pdrvmsg = (struct drv_msg *)&cmdbuffer[0];
 		msgtype = ntohs(pdrvmsg->type);
 		pr_debug("Command message type = 0x%x\n", msgtype);
@@ -968,8 +933,8 @@ static void ft1000_proc_drvmsg(struct net_device *dev)
 			while (list_empty(&info->prov_list) == 0) {
 				pr_debug("Sending a provisioning message\n");
 				/* Make sure SLOWQ doorbell is clear */
-				tempword =
-					ft1000_read_reg(dev, FT1000_REG_DOORBELL);
+				tempword = ft1000_read_reg(dev,
+							   FT1000_REG_DOORBELL);
 				i = 0;
 				while (tempword & FT1000_DB_DPRAM_TX) {
 					mdelay(5);
@@ -977,9 +942,8 @@ static void ft1000_proc_drvmsg(struct net_device *dev)
 					if (i == 10)
 						break;
 				}
-				ptr =
-					list_entry(info->prov_list.next,
-						   struct prov_record, list);
+				ptr = list_entry(info->prov_list.next,
+						 struct prov_record, list);
 				len = *(u16 *)ptr->pprov_data;
 				len = htons(len);
 
@@ -998,14 +962,15 @@ static void ft1000_proc_drvmsg(struct net_device *dev)
 						 ppseudo_hdr->checksum);
 				}
 
-				ft1000_send_cmd(dev, (u16 *)ptr->pprov_data, len, SLOWQ_TYPE);
+				ft1000_send_cmd(dev, (u16 *)ptr->pprov_data,
+						len, SLOWQ_TYPE);
 				list_del(&ptr->list);
 				kfree(ptr->pprov_data);
 				kfree(ptr);
 			}
 			/*
-			 * Indicate adapter is ready to take application messages after all
-			 * provisioning messages are sent
+			 * Indicate adapter is ready to take application
+			 * messages after all provisioning messages are sent
 			 */
 			info->CardReady = 1;
 			break;
@@ -1093,8 +1058,8 @@ static void ft1000_proc_drvmsg(struct net_device *dev)
 			tempword = ft1000_read_reg(dev, FT1000_REG_DOORBELL);
 			if (tempword & FT1000_DB_DPRAM_TX) {
 				mdelay(10);
-				tempword =
-					ft1000_read_reg(dev, FT1000_REG_DOORBELL);
+				tempword = ft1000_read_reg(dev,
+							   FT1000_REG_DOORBELL);
 				if (tempword & FT1000_DB_DPRAM_TX)
 					mdelay(10);
 			}
@@ -1129,7 +1094,9 @@ static void ft1000_proc_drvmsg(struct net_device *dev)
 				info->DSPInfoBlk[8] = 0x7200;
 				info->DSPInfoBlk[9] =
 					htons(info->DSPInfoBlklen);
-				ft1000_send_cmd(dev, (u16 *)info->DSPInfoBlk, (u16)(info->DSPInfoBlklen+4), 0);
+				ft1000_send_cmd(dev, info->DSPInfoBlk,
+						(u16)(info->DSPInfoBlklen+4),
+						0);
 			}
 
 			break;
@@ -1143,8 +1110,8 @@ static void ft1000_proc_drvmsg(struct net_device *dev)
 			tempword = ft1000_read_reg(dev, FT1000_REG_DOORBELL);
 			if (tempword & FT1000_DB_DPRAM_TX) {
 				mdelay(10);
-				tempword =
-					ft1000_read_reg(dev, FT1000_REG_DOORBELL);
+				tempword = ft1000_read_reg(dev,
+							   FT1000_REG_DOORBELL);
 				if (tempword & FT1000_DB_DPRAM_TX)
 					mdelay(10);
 			}
@@ -1190,7 +1157,8 @@ static void ft1000_proc_drvmsg(struct net_device *dev)
 				*pmsg++ = convert.wrd;
 				*pmsg++ = htons(info->DrvErrNum);
 
-				ft1000_send_cmd(dev, (u16 *)&tempbuffer[0], (u16)(0x0012), 0);
+				ft1000_send_cmd(dev, (u16 *)&tempbuffer[0],
+						(u16)(0x0012), 0);
 				info->DrvErrNum = 0;
 			}
 
@@ -1281,28 +1249,30 @@ static int ft1000_parse_dpram_msg(struct net_device *dev)
 				       FT1000_MAG_TOTAL_LEN_INDX));
 		}
 		pr_debug("total length = %d\n", total_len);
-		if ((total_len < MAX_CMD_SQSIZE) && (total_len > sizeof(struct pseudo_hdr))) {
+		if ((total_len < MAX_CMD_SQSIZE)
+				&& (total_len > sizeof(struct pseudo_hdr))) {
 			total_len += nxtph;
 			/*
-			 * ft1000_read_reg will return a value that needs to be byteswap
-			 * in order to get DSP_QID_OFFSET.
+			 * ft1000_read_reg will return a value that needs to be
+			 * byteswap in order to get DSP_QID_OFFSET.
 			 */
 			if (info->AsicID == ELECTRABUZZ_ID) {
-				portid =
-					(ft1000_read_dpram
-					 (dev,
-					  DSP_QID_OFFSET + FT1000_DPRAM_RX_BASE +
-					  2) >> 8) & 0xff;
+				portid = (ft1000_read_dpram(dev, DSP_QID_OFFSET
+						+ FT1000_DPRAM_RX_BASE + 2)
+						>> 8) & 0xff;
 			} else {
 				portid =
-					(ft1000_read_dpram_mag_16
+					ft1000_read_dpram_mag_16
 					 (dev, FT1000_MAG_PORT_ID,
-					  FT1000_MAG_PORT_ID_INDX) & 0xff);
+					  FT1000_MAG_PORT_ID_INDX) & 0xff;
 			}
 			pr_debug("DSP_QID = 0x%x\n", portid);
 
 			if (portid == DRIVERID) {
-				/* We are assumming one driver message from the DSP at a time. */
+				/*
+				 * We are assumming one driver message from the
+				 * DSP at a time.
+				 */
 				ft1000_proc_drvmsg(dev);
 			}
 		}
@@ -1311,29 +1281,7 @@ static int ft1000_parse_dpram_msg(struct net_device *dev)
 
 	if (doorbell & FT1000_DB_COND_RESET) {
 		/* Reset ASIC and DSP */
-		if (info->AsicID == ELECTRABUZZ_ID) {
-			info->DSP_TIME[0] =
-				ft1000_read_dpram(dev, FT1000_DSP_TIMER0);
-			info->DSP_TIME[1] =
-				ft1000_read_dpram(dev, FT1000_DSP_TIMER1);
-			info->DSP_TIME[2] =
-				ft1000_read_dpram(dev, FT1000_DSP_TIMER2);
-			info->DSP_TIME[3] =
-				ft1000_read_dpram(dev, FT1000_DSP_TIMER3);
-		} else {
-			info->DSP_TIME[0] =
-				ft1000_read_dpram_mag_16(dev, FT1000_MAG_DSP_TIMER0,
-							 FT1000_MAG_DSP_TIMER0_INDX);
-			info->DSP_TIME[1] =
-				ft1000_read_dpram_mag_16(dev, FT1000_MAG_DSP_TIMER1,
-							 FT1000_MAG_DSP_TIMER1_INDX);
-			info->DSP_TIME[2] =
-				ft1000_read_dpram_mag_16(dev, FT1000_MAG_DSP_TIMER2,
-							 FT1000_MAG_DSP_TIMER2_INDX);
-			info->DSP_TIME[3] =
-				ft1000_read_dpram_mag_16(dev, FT1000_MAG_DSP_TIMER3,
-							 FT1000_MAG_DSP_TIMER3_INDX);
-		}
+		ft1000_read_dsp_timer(dev, info);
 		info->DrvErrNum = DSP_CONDRESET_INFO;
 		pr_debug("DSP conditional reset requested\n");
 		ft1000_reset_card(dev);
@@ -1374,131 +1322,84 @@ static void ft1000_flush_fifo(struct net_device *dev, u16 DrvErrNum)
 	u16 tempword;
 
 	if (pcmcia->PktIntfErr > MAX_PH_ERR) {
-		if (info->AsicID == ELECTRABUZZ_ID) {
-			info->DSP_TIME[0] =
-				ft1000_read_dpram(dev, FT1000_DSP_TIMER0);
-			info->DSP_TIME[1] =
-				ft1000_read_dpram(dev, FT1000_DSP_TIMER1);
-			info->DSP_TIME[2] =
-				ft1000_read_dpram(dev, FT1000_DSP_TIMER2);
-			info->DSP_TIME[3] =
-				ft1000_read_dpram(dev, FT1000_DSP_TIMER3);
-		} else {
-			info->DSP_TIME[0] =
-				ft1000_read_dpram_mag_16(dev, FT1000_MAG_DSP_TIMER0,
-							 FT1000_MAG_DSP_TIMER0_INDX);
-			info->DSP_TIME[1] =
-				ft1000_read_dpram_mag_16(dev, FT1000_MAG_DSP_TIMER1,
-							 FT1000_MAG_DSP_TIMER1_INDX);
-			info->DSP_TIME[2] =
-				ft1000_read_dpram_mag_16(dev, FT1000_MAG_DSP_TIMER2,
-							 FT1000_MAG_DSP_TIMER2_INDX);
-			info->DSP_TIME[3] =
-				ft1000_read_dpram_mag_16(dev, FT1000_MAG_DSP_TIMER3,
-							 FT1000_MAG_DSP_TIMER3_INDX);
-		}
+		ft1000_read_dsp_timer(dev, info);
 		info->DrvErrNum = DrvErrNum;
 		ft1000_reset_card(dev);
 		return;
-	} else {
-		/* Flush corrupted pkt from FIFO */
-		i = 0;
-		do {
-			if (info->AsicID == ELECTRABUZZ_ID) {
-				tempword =
-					ft1000_read_reg(dev, FT1000_REG_DFIFO);
-				tempword =
-					ft1000_read_reg(dev, FT1000_REG_DFIFO_STAT);
-			} else {
-				templong =
-					inl(dev->base_addr + FT1000_REG_MAG_DFR);
+	}
+	/* Flush corrupted pkt from FIFO */
+	i = 0;
+	do {
+		if (info->AsicID == ELECTRABUZZ_ID) {
+			tempword =
+				ft1000_read_reg(dev, FT1000_REG_DFIFO);
+			tempword =
+				ft1000_read_reg(dev, FT1000_REG_DFIFO_STAT);
+		} else {
+			templong =
+				inl(dev->base_addr + FT1000_REG_MAG_DFR);
+			tempword =
+				inw(dev->base_addr + FT1000_REG_MAG_DFSR);
+		}
+		i++;
+		/*
+		 * This should never happen unless the ASIC is broken.
+		 * We must reset to recover.
+		 */
+		if ((i > 2048) || (tempword == 0)) {
+			ft1000_read_dsp_timer(dev, info);
+			if (tempword == 0) {
+				/*
+				 * Let's check if ASIC reads are still ok by
+				 * reading the Mask register which is never zero
+				 * at this point of the code.
+				 */
 				tempword =
-					inw(dev->base_addr + FT1000_REG_MAG_DFSR);
-			}
-			i++;
-			/*
-			 * This should never happen unless the ASIC is broken.
-			 * We must reset to recover.
-			 */
-			if ((i > 2048) || (tempword == 0)) {
-				if (info->AsicID == ELECTRABUZZ_ID) {
-					info->DSP_TIME[0] =
-						ft1000_read_dpram(dev,
-								  FT1000_DSP_TIMER0);
-					info->DSP_TIME[1] =
-						ft1000_read_dpram(dev,
-								  FT1000_DSP_TIMER1);
-					info->DSP_TIME[2] =
-						ft1000_read_dpram(dev,
-								  FT1000_DSP_TIMER2);
-					info->DSP_TIME[3] =
-						ft1000_read_dpram(dev,
-								  FT1000_DSP_TIMER3);
-				} else {
-					info->DSP_TIME[0] =
-						ft1000_read_dpram_mag_16(dev,
-									 FT1000_MAG_DSP_TIMER0,
-									 FT1000_MAG_DSP_TIMER0_INDX);
-					info->DSP_TIME[1] =
-						ft1000_read_dpram_mag_16(dev,
-									 FT1000_MAG_DSP_TIMER1,
-									 FT1000_MAG_DSP_TIMER1_INDX);
-					info->DSP_TIME[2] =
-						ft1000_read_dpram_mag_16(dev,
-									 FT1000_MAG_DSP_TIMER2,
-									 FT1000_MAG_DSP_TIMER2_INDX);
-					info->DSP_TIME[3] =
-						ft1000_read_dpram_mag_16(dev,
-									 FT1000_MAG_DSP_TIMER3,
-									 FT1000_MAG_DSP_TIMER3_INDX);
-				}
+					inw(dev->base_addr +
+					    FT1000_REG_SUP_IMASK);
 				if (tempword == 0) {
 					/*
-					 * Let's check if ASIC reads are still ok by reading the Mask register
-					 * which is never zero at this point of the code.
+					 * This indicates that we can not
+					 * communicate with the ASIC
 					 */
-					tempword =
-						inw(dev->base_addr +
-						    FT1000_REG_SUP_IMASK);
-					if (tempword == 0) {
-						/* This indicates that we can not communicate with the ASIC */
-						info->DrvErrNum =
-							FIFO_FLUSH_BADCNT;
-					} else {
-						/* Let's assume that we really flush the FIFO */
-						pcmcia->PktIntfErr++;
-						return;
-					}
+					info->DrvErrNum = FIFO_FLUSH_BADCNT;
 				} else {
-					info->DrvErrNum = FIFO_FLUSH_MAXLIMIT;
+					/*
+					 * Let's assume that we really flush
+					 * the FIFO
+					 */
+					pcmcia->PktIntfErr++;
+					return;
 				}
-				return;
+			} else {
+				info->DrvErrNum = FIFO_FLUSH_MAXLIMIT;
 			}
-			tempword = inw(dev->base_addr + FT1000_REG_SUP_STAT);
-		} while ((tempword & 0x03) != 0x03);
-		if (info->AsicID == ELECTRABUZZ_ID) {
-			i++;
-			pr_debug("Flushing FIFO complete = %x\n", tempword);
-			/* Flush last word in FIFO. */
-			tempword = ft1000_read_reg(dev, FT1000_REG_DFIFO);
-			/* Update FIFO counter for DSP */
-			i = i * 2;
-			pr_debug("Flush Data byte count to dsp = %d\n", i);
-			info->fifo_cnt += i;
-			ft1000_write_dpram(dev, FT1000_FIFO_LEN,
-					   info->fifo_cnt);
-		} else {
-			pr_debug("Flushing FIFO complete = %x\n", tempword);
-			/* Flush last word in FIFO */
-			templong = inl(dev->base_addr + FT1000_REG_MAG_DFR);
-			tempword = inw(dev->base_addr + FT1000_REG_SUP_STAT);
-			pr_debug("FT1000_REG_SUP_STAT = 0x%x\n", tempword);
-			tempword = inw(dev->base_addr + FT1000_REG_MAG_DFSR);
-			pr_debug("FT1000_REG_MAG_DFSR = 0x%x\n", tempword);
+			return;
 		}
-		if (DrvErrNum)
-			pcmcia->PktIntfErr++;
+		tempword = inw(dev->base_addr + FT1000_REG_SUP_STAT);
+	} while ((tempword & 0x03) != 0x03);
+	if (info->AsicID == ELECTRABUZZ_ID) {
+		i++;
+		pr_debug("Flushing FIFO complete = %x\n", tempword);
+		/* Flush last word in FIFO. */
+		tempword = ft1000_read_reg(dev, FT1000_REG_DFIFO);
+		/* Update FIFO counter for DSP */
+		i = i * 2;
+		pr_debug("Flush Data byte count to dsp = %d\n", i);
+		info->fifo_cnt += i;
+		ft1000_write_dpram(dev, FT1000_FIFO_LEN,
+				   info->fifo_cnt);
+	} else {
+		pr_debug("Flushing FIFO complete = %x\n", tempword);
+		/* Flush last word in FIFO */
+		templong = inl(dev->base_addr + FT1000_REG_MAG_DFR);
+		tempword = inw(dev->base_addr + FT1000_REG_SUP_STAT);
+		pr_debug("FT1000_REG_SUP_STAT = 0x%x\n", tempword);
+		tempword = inw(dev->base_addr + FT1000_REG_MAG_DFSR);
+		pr_debug("FT1000_REG_MAG_DFSR = 0x%x\n", tempword);
 	}
+	if (DrvErrNum)
+		pcmcia->PktIntfErr++;
 }
 
 /*---------------------------------------------------------------------------
@@ -1552,7 +1453,6 @@ static int ft1000_copy_up_pkt(struct net_device *dev)
 	skb = dev_alloc_skb(len + 12 + 2);
 
 	if (skb == NULL) {
-		pr_debug("No Network buffers available\n");
 		/* Read High word to complete 32 bit access */
 		if (info->AsicID == MAGNEMITE_ID)
 			tempword = ft1000_read_reg(dev, FT1000_REG_MAG_DFRH);
@@ -1673,7 +1573,8 @@ static int ft1000_copy_up_pkt(struct net_device *dev)
 	info->stats.rx_bytes += (len + 12);
 
 	if (info->AsicID == ELECTRABUZZ_ID) {
-		/* track how many bytes have been read from FIFO - round up to 16 bit word */
+		/* track how many bytes have been read from FIFO - round up to
+		 * 16 bit word */
 		tempword = len + 16;
 		if (tempword & 0x01)
 			tempword++;
@@ -1737,9 +1638,11 @@ static int ft1000_copy_down_pkt(struct net_device *dev, u16 *packet, u16 len)
 	else
 		pseudo.blk.length = ntohs(len);
 
-	pseudo.blk.source = DSPID;	/* Need to swap to get in correct order */
+	pseudo.blk.source = DSPID;	/* Need to swap to get in correct
+					   order */
 	pseudo.blk.destination = HOSTID;
-	pseudo.blk.portdest = NETWORKID;	/* Need to swap to get in correct order */
+	pseudo.blk.portdest = NETWORKID;	/* Need to swap to get in
+						   correct order */
 	pseudo.blk.portsrc = DSPAIRID;
 	pseudo.blk.sh_str_id = 0;
 	pseudo.blk.control = 0;
@@ -1843,7 +1746,8 @@ static int ft1000_open(struct net_device *dev)
 {
 	ft1000_reset_card(dev);
 
-	/* schedule ft1000_hbchk to perform periodic heartbeat checks on DSP and ASIC */
+	/* schedule ft1000_hbchk to perform periodic heartbeat checks on DSP
+	 * and ASIC */
 	init_timer(&poll_timer);
 	poll_timer.expires = jiffies + (2 * HZ);
 	poll_timer.data = (u_long)dev;
@@ -1928,7 +1832,8 @@ static irqreturn_t ft1000_interrupt(int irq, void *dev_id)
 	/* Read interrupt type */
 	inttype = ft1000_read_reg(dev, FT1000_REG_SUP_ISR);
 
-	/* Make sure we process all interrupt before leaving the ISR due to the edge trigger interrupt type */
+	/* Make sure we process all interrupt before leaving the ISR due to the
+	 * edge trigger interrupt type */
 	while (inttype) {
 		if (inttype & ISR_DOORBELL_PEND)
 			ft1000_parse_dpram_msg(dev);
@@ -1938,21 +1843,18 @@ static irqreturn_t ft1000_interrupt(int irq, void *dev_id)
 
 			cnt = 0;
 			do {
-				/* Check if we have packets in the Downlink FIFO */
+				/* Check if we have packets in the Downlink
+				 * FIFO */
 				if (info->AsicID == ELECTRABUZZ_ID) {
-					tempword =
-						ft1000_read_reg(dev,
-								FT1000_REG_DFIFO_STAT);
+					tempword = ft1000_read_reg(dev,
+							FT1000_REG_DFIFO_STAT);
 				} else {
-					tempword =
-						ft1000_read_reg(dev,
-								FT1000_REG_MAG_DFSR);
+					tempword = ft1000_read_reg(dev,
+							FT1000_REG_MAG_DFSR);
 				}
-				if (tempword & 0x1f) {
-					ft1000_copy_up_pkt(dev);
-				} else {
+				if (!(tempword & 0x1f))
 					break;
-				}
+				ft1000_copy_up_pkt(dev);
 				cnt++;
 			} while (cnt < MAX_RCV_LOOP);
 
@@ -1975,6 +1877,7 @@ void stop_ft1000_card(struct net_device *dev)
 {
 	struct ft1000_info *info = netdev_priv(dev);
 	struct prov_record *ptr;
+	struct prov_record *tmp;
 	/* int cnt; */
 
 	info->CardReady = 0;
@@ -1983,8 +1886,7 @@ void stop_ft1000_card(struct net_device *dev)
 	ft1000_disable_interrupts(dev);
 
 	/* Make sure we free any memory reserve for provisioning */
-	while (list_empty(&info->prov_list) == 0) {
-		ptr = list_entry(info->prov_list.next, struct prov_record, list);
+	list_for_each_entry_safe(ptr, tmp, &info->prov_list, list) {
 		list_del(&ptr->list);
 		kfree(ptr->pprov_data);
 		kfree(ptr);
@@ -2008,6 +1910,7 @@ static void ft1000_get_drvinfo(struct net_device *dev,
 			       struct ethtool_drvinfo *info)
 {
 	struct ft1000_info *ft_info;
+
 	ft_info = netdev_priv(dev);
 
 	strlcpy(info->driver, "ft1000", sizeof(info->driver));
@@ -2038,8 +1941,7 @@ struct net_device *init_ft1000_card(struct pcmcia_device *link,
 	struct ft1000_pcmcia *pcmcia;
 	struct net_device *dev;
 
-	static const struct net_device_ops ft1000ops =		/* Slavius 21.10.2009 due to kernel changes */
-		{
+	static const struct net_device_ops ft1000ops = {
 			.ndo_open = &ft1000_open,
 			.ndo_stop = &ft1000_close,
 			.ndo_start_xmit = &ft1000_start_xmit,
@@ -2102,7 +2004,7 @@ struct net_device *init_ft1000_card(struct pcmcia_device *link,
 	/* dev->open = &ft1000_open; */
 	/* dev->stop = &ft1000_close; */
 
-	dev->netdev_ops = &ft1000ops;		/* Slavius 21.10.2009 due to kernel changes */
+	dev->netdev_ops = &ft1000ops;
 
 	pr_debug("device name = %s\n", dev->name);
 
@@ -2113,7 +2015,8 @@ struct net_device *init_ft1000_card(struct pcmcia_device *link,
 		goto err_dev;
 	}
 
-	if (request_irq(dev->irq, ft1000_interrupt, IRQF_SHARED, dev->name, dev)) {
+	if (request_irq(dev->irq, ft1000_interrupt, IRQF_SHARED, dev->name,
+			dev)) {
 		netdev_err(dev, "Could not request_irq\n");
 		goto err_dev;
 	}
@@ -2123,7 +2026,7 @@ struct net_device *init_ft1000_card(struct pcmcia_device *link,
 		goto err_irq;
 	}
 
-	if (register_netdev(dev) != 0) {
+	if (register_netdev(dev)) {
 		pr_debug("Could not register netdev\n");
 		goto err_reg;
 	}
@@ -2131,13 +2034,15 @@ struct net_device *init_ft1000_card(struct pcmcia_device *link,
 	info->AsicID = ft1000_read_reg(dev, FT1000_REG_ASIC_ID);
 	if (info->AsicID == ELECTRABUZZ_ID) {
 		pr_debug("ELECTRABUZZ ASIC\n");
-		if (request_firmware(&fw_entry, "ft1000.img", &link->dev) != 0) {
+		if (request_firmware(&fw_entry, "ft1000.img",
+				     &link->dev) != 0) {
 			pr_info("Could not open ft1000.img\n");
 			goto err_unreg;
 		}
 	} else {
 		pr_debug("MAGNEMITE ASIC\n");
-		if (request_firmware(&fw_entry, "ft2000.img", &link->dev) != 0) {
+		if (request_firmware(&fw_entry, "ft2000.img",
+				     &link->dev) != 0) {
 			pr_info("Could not open ft2000.img\n");
 			goto err_unreg;
 		}
diff --git a/drivers/staging/ft1000/ft1000-usb/ft1000_debug.c b/drivers/staging/ft1000/ft1000-usb/ft1000_debug.c
index c8d2782..2d758fb 100644
--- a/drivers/staging/ft1000/ft1000-usb/ft1000_debug.c
+++ b/drivers/staging/ft1000/ft1000-usb/ft1000_debug.c
@@ -190,7 +190,7 @@ int ft1000_create_dev(struct ft1000_usb *dev)
 	tmp->dent = dir;
 	tmp->file = file;
 	tmp->int_number = dev->CardNumber;
-	list_add(&(tmp->list), &(dev->nodes.list));
+	list_add(&tmp->list, &dev->nodes.list);
 
 	pr_debug("registered debugfs directory \"%s\"\n", dev->DeviceName);
 
@@ -301,7 +301,7 @@ static int ft1000_open(struct inode *inode, struct file *file)
 	struct ft1000_usb *dev = (struct ft1000_usb *)inode->i_private;
 	int i, num;
 
-	num = (MINOR(inode->i_rdev) & 0xf);
+	num = MINOR(inode->i_rdev) & 0xf;
 	pr_debug("minor number=%d\n", num);
 
 	info = file->private_data = netdev_priv(dev->net);
@@ -317,9 +317,8 @@ static int ft1000_open(struct inode *inode, struct file *file)
 
 	/* Search for available application info block */
 	for (i = 0; i < MAX_NUM_APP; i++) {
-		if ((dev->app_info[i].fileobject == NULL)) {
+		if ((dev->app_info[i].fileobject == NULL))
 			break;
-		}
 	}
 
 	/* Fail due to lack of application info block */
@@ -478,14 +477,14 @@ static long ft1000_ioctl(struct file *file, unsigned int command,
 		/* Connect Message */
 		pr_debug("IOCTL_FT1000_CONNECT\n");
 		ConnectionMsg[79] = 0xfc;
-		result = card_send_command(ft1000dev, (unsigned short *)ConnectionMsg, 0x4c);
+		result = card_send_command(ft1000dev, ConnectionMsg, 0x4c);
 
 		break;
 	case IOCTL_DISCONNECT:
 		/* Disconnect Message */
 		pr_debug("IOCTL_FT1000_DISCONNECT\n");
 		ConnectionMsg[79] = 0xfd;
-		result = card_send_command(ft1000dev, (unsigned short *)ConnectionMsg, 0x4c);
+		result = card_send_command(ft1000dev, ConnectionMsg, 0x4c);
 		break;
 	case IOCTL_GET_DSP_STAT_CMD:
 		/* pr_debug("IOCTL_FT1000_GET_DSP_STAT\n"); */
@@ -545,7 +544,7 @@ static long ft1000_ioctl(struct file *file, unsigned int command,
 		if (ft1000dev->fProvComplete == 0)
 			return -EACCES;
 
-		ft1000dev->fAppMsgPend = 1;
+		ft1000dev->fAppMsgPend = true;
 
 		if (info->CardReady) {
 
@@ -575,9 +574,8 @@ static long ft1000_ioctl(struct file *file, unsigned int command,
 			} else {
 				/* Check if this message came from a registered application */
 				for (i = 0; i < MAX_NUM_APP; i++) {
-					if (ft1000dev->app_info[i].fileobject == &file->f_owner) {
+					if (ft1000dev->app_info[i].fileobject == &file->f_owner)
 						break;
-					}
 				}
 				if (i == MAX_NUM_APP) {
 					pr_debug("No matching application fileobject\n");
@@ -629,9 +627,8 @@ static long ft1000_ioctl(struct file *file, unsigned int command,
 						pmsg = (u16 *)&dpram_data->pseudohdr;
 						ppseudo_hdr = (struct pseudo_hdr *)pmsg;
 						total_len = msgsz+2;
-						if (total_len & 0x1) {
+						if (total_len & 0x1)
 							total_len++;
-						}
 
 						/* Insert slow queue sequence number */
 						ppseudo_hdr->seq_num = info->squeseqnum++;
@@ -645,7 +642,7 @@ static long ft1000_ioctl(struct file *file, unsigned int command,
 						}
 						pmsg++;
 						ppseudo_hdr = (struct pseudo_hdr *)pmsg;
-						result = card_send_command(ft1000dev, (unsigned short *)dpram_data, total_len+2);
+						result = card_send_command(ft1000dev, dpram_data, total_len+2);
 
 
 						ft1000dev->app_info[app_index].nTxMsg++;
@@ -722,7 +719,7 @@ static long ft1000_ioctl(struct file *file, unsigned int command,
 		result = -ENOTTY;
 		break;
 	}
-	ft1000dev->fAppMsgPend = 0;
+	ft1000dev->fAppMsgPend = false;
 	return result;
 }
 
@@ -745,6 +742,7 @@ static int ft1000_release(struct inode *inode, struct file *file)
 	struct ft1000_usb *ft1000dev;
 	int i;
 	struct dpram_blk *pdpram_blk;
+	struct dpram_blk *tmp;
 
 	dev = file->private_data;
 	info = netdev_priv(dev);
@@ -766,9 +764,8 @@ static int ft1000_release(struct inode *inode, struct file *file)
 	if (i == MAX_NUM_APP)
 		return 0;
 
-	while (list_empty(&ft1000dev->app_info[i].app_sqlist) == 0) {
+	list_for_each_entry_safe(pdpram_blk, tmp, &ft1000dev->app_info[i].app_sqlist, list) {
 		pr_debug("Remove and free memory queue up on slow queue\n");
-		pdpram_blk = list_entry(ft1000dev->app_info[i].app_sqlist.next, struct dpram_blk, list);
 		list_del(&pdpram_blk->list);
 		ft1000_free_buffer(pdpram_blk, &freercvpool);
 	}
diff --git a/drivers/staging/ft1000/ft1000-usb/ft1000_download.c b/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
index e8126325..5def347 100644
--- a/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
+++ b/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
@@ -230,7 +230,7 @@ static u16 get_handshake_usb(struct ft1000_usb *ft1000dev, u16 expected_value)
 	while (loopcnt < 100) {
 		if (ft1000dev->usbboot == 2) {
 			status = ft1000_read_dpram32(ft1000dev, 0,
-						     (u8 *)&(ft1000dev->tempbuf[0]), 64);
+						     (u8 *)&ft1000dev->tempbuf[0], 64);
 			for (temp = 0; temp < 16; temp++) {
 				pr_debug("tempbuf %d = 0x%x\n",
 					 temp, ft1000dev->tempbuf[temp]);
@@ -368,8 +368,8 @@ static u16 hdr_checksum(struct pseudo_hdr *pHdr)
 	u16   chksum;
 
 
-	chksum = ((((((usPtr[0] ^ usPtr[1]) ^ usPtr[2]) ^ usPtr[3]) ^
-		    usPtr[4]) ^ usPtr[5]) ^ usPtr[6]);
+	chksum = (((((usPtr[0] ^ usPtr[1]) ^ usPtr[2]) ^ usPtr[3]) ^
+		    usPtr[4]) ^ usPtr[5]) ^ usPtr[6];
 
 	return chksum;
 }
@@ -538,7 +538,7 @@ static int write_blk_fifo(struct ft1000_usb *ft1000dev, u16 **pUsFile,
 			  usb_sndbulkpipe(ft1000dev->dev,
 					  ft1000dev->bulk_out_endpointAddr),
 			  ft1000dev->tx_buf, byte_length, usb_dnld_complete,
-			  (void *)ft1000dev);
+			  ft1000dev);
 
 	usb_submit_urb(ft1000dev->tx_urb, GFP_ATOMIC);
 
@@ -704,7 +704,7 @@ int scram_dnldr(struct ft1000_usb *ft1000dev, void *pFileStart,
 				case REQUEST_CODE_SEGMENT:
 					status = request_code_segment(ft1000dev,
 								      &s_file, &c_file,
-								      (const u8 *)boot_end,
+								      boot_end,
 								      true);
 					break;
 				default:
@@ -799,7 +799,7 @@ int scram_dnldr(struct ft1000_usb *ft1000dev, void *pFileStart,
 
 					status = request_code_segment(ft1000dev,
 								      &s_file, &c_file,
-								      (const u8 *)code_end,
+								      code_end,
 								      false);
 
 					break;
@@ -971,11 +971,11 @@ int scram_dnldr(struct ft1000_usb *ft1000dev, void *pFileStart,
 
 				/* Get buffer for provisioning data */
 				pbuffer =
-					kmalloc((pseudo_header_len +
-						 sizeof(struct pseudo_hdr)),
+					kmalloc(pseudo_header_len +
+						 sizeof(struct pseudo_hdr),
 						GFP_ATOMIC);
 				if (pbuffer) {
-					memcpy(pbuffer, (void *)c_file,
+					memcpy(pbuffer, c_file,
 					       (u32) (pseudo_header_len +
 						      sizeof(struct
 							     pseudo_hdr)));
diff --git a/drivers/staging/ft1000/ft1000-usb/ft1000_hw.c b/drivers/staging/ft1000/ft1000-usb/ft1000_hw.c
index f0ac438..e6fb066 100644
--- a/drivers/staging/ft1000/ft1000-usb/ft1000_hw.c
+++ b/drivers/staging/ft1000/ft1000-usb/ft1000_hw.c
@@ -339,7 +339,7 @@ int card_send_command(struct ft1000_usb *ft1000dev, void *ptempbuffer,
 	commandbuf = kmalloc(size + 2, GFP_KERNEL);
 	if (!commandbuf)
 		return -ENOMEM;
-	memcpy((void *)commandbuf + 2, (void *)ptempbuffer, size);
+	memcpy((void *)commandbuf + 2, ptempbuffer, size);
 
 	if (temp & 0x0100)
 		usleep_range(900, 1100);
@@ -429,7 +429,7 @@ static void ft1000_reset_asic(struct net_device *dev)
 	/* Let's use the register provided by the Magnemite ASIC to reset the
 	 * ASIC and DSP.
 	 */
-	ft1000_write_register(ft1000dev, (DSP_RESET_BIT | ASIC_RESET_BIT),
+	ft1000_write_register(ft1000dev, DSP_RESET_BIT | ASIC_RESET_BIT,
 			      FT1000_REG_RESET);
 
 	mdelay(1);
@@ -451,16 +451,15 @@ static int ft1000_reset_card(struct net_device *dev)
 	struct ft1000_usb *ft1000dev = info->priv;
 	u16 tempword;
 	struct prov_record *ptr;
+	struct prov_record *tmp;
 
 	ft1000dev->fCondResetPend = true;
 	info->CardReady = 0;
 	ft1000dev->fProvComplete = false;
 
 	/* Make sure we free any memory reserve for provisioning */
-	while (list_empty(&info->prov_list) == 0) {
+	list_for_each_entry_safe(ptr, tmp, &info->prov_list, list) {
 		pr_debug("deleting provisioning record\n");
-		ptr =
-			list_entry(info->prov_list.next, struct prov_record, list);
 		list_del(&ptr->list);
 		kfree(ptr->pprov_data);
 		kfree(ptr);
@@ -542,7 +541,7 @@ static int ft1000_copy_down_pkt(struct net_device *netdev, u8 *packet, u16 len)
 		hdr.portdest ^ hdr.portsrc ^ hdr.sh_str_id ^ hdr.control;
 
 	memcpy(&pFt1000Dev->tx_buf[0], &hdr, sizeof(hdr));
-	memcpy(&(pFt1000Dev->tx_buf[sizeof(struct pseudo_hdr)]), packet, len);
+	memcpy(&pFt1000Dev->tx_buf[sizeof(struct pseudo_hdr)], packet, len);
 
 	netif_stop_queue(netdev);
 
@@ -551,7 +550,7 @@ static int ft1000_copy_down_pkt(struct net_device *netdev, u8 *packet, u16 len)
 			  usb_sndbulkpipe(pFt1000Dev->dev,
 					  pFt1000Dev->bulk_out_endpointAddr),
 			  pFt1000Dev->tx_buf, count,
-			  ft1000_usb_transmit_complete, (void *)pFt1000Dev);
+			  ft1000_usb_transmit_complete, pFt1000Dev);
 
 	t = (u8 *)pFt1000Dev->tx_urb->transfer_buffer;
 
@@ -606,7 +605,7 @@ static int ft1000_start_xmit(struct sk_buff *skb, struct net_device *dev)
 		goto err;
 	}
 
-	ft1000_copy_down_pkt(dev, (pdata + ENET_HEADER_SIZE - 2),
+	ft1000_copy_down_pkt(dev, pdata + ENET_HEADER_SIZE - 2,
 			     skb->len - ENET_HEADER_SIZE + 2);
 
 err:
@@ -1558,19 +1557,19 @@ int ft1000_poll(void *dev_id)
 				/* Reset ASIC and DSP */
 				status = ft1000_read_dpram16(dev,
 							     FT1000_MAG_DSP_TIMER0,
-							     (u8 *)&(info->DSP_TIME[0]),
+							     (u8 *)&info->DSP_TIME[0],
 							     FT1000_MAG_DSP_TIMER0_INDX);
 				status = ft1000_read_dpram16(dev,
 							     FT1000_MAG_DSP_TIMER1,
-							     (u8 *)&(info->DSP_TIME[1]),
+							     (u8 *)&info->DSP_TIME[1],
 							     FT1000_MAG_DSP_TIMER1_INDX);
 				status = ft1000_read_dpram16(dev,
 							     FT1000_MAG_DSP_TIMER2,
-							     (u8 *)&(info->DSP_TIME[2]),
+							     (u8 *)&info->DSP_TIME[2],
 							     FT1000_MAG_DSP_TIMER2_INDX);
 				status = ft1000_read_dpram16(dev,
 							     FT1000_MAG_DSP_TIMER3,
-							     (u8 *)&(info->DSP_TIME[3]),
+							     (u8 *)&info->DSP_TIME[3],
 							     FT1000_MAG_DSP_TIMER3_INDX);
 				info->CardReady = 0;
 				info->DrvErrNum = DSP_CONDRESET_INFO;
diff --git a/drivers/staging/ft1000/ft1000-usb/ft1000_usb.c b/drivers/staging/ft1000/ft1000-usb/ft1000_usb.c
index a6b55f4..3b303b6 100644
--- a/drivers/staging/ft1000/ft1000-usb/ft1000_usb.c
+++ b/drivers/staging/ft1000/ft1000-usb/ft1000_usb.c
@@ -136,7 +136,7 @@ static int ft1000_probe(struct usb_interface *interface,
 
 	ret = request_firmware(&dsp_fw, "ft3000.img", &dev->dev);
 	if (ret < 0) {
-		pr_err("Error request_firmware()\n");
+		dev_err(interface->usb_dev, "Error request_firmware()\n");
 		goto err_fw;
 	}
 
@@ -164,7 +164,8 @@ static int ft1000_probe(struct usb_interface *interface,
 	pr_debug("pft1000info=%p\n", pft1000info);
 	ret = dsp_reload(ft1000dev);
 	if (ret) {
-		pr_err("Problem with DSP image loading\n");
+		dev_err(interface->usb_dev,
+			"Problem with DSP image loading\n");
 		goto err_load;
 	}
 
diff --git a/drivers/staging/fwserial/fwserial.c b/drivers/staging/fwserial/fwserial.c
index 73deae3..fdb2418 100644
--- a/drivers/staging/fwserial/fwserial.c
+++ b/drivers/staging/fwserial/fwserial.c
@@ -1186,7 +1186,7 @@ static void fwtty_unthrottle(struct tty_struct *tty)
 {
 	struct fwtty_port *port = tty->driver_data;
 
-	fwtty_dbg(port, "CRTSCTS: %d\n", (C_CRTSCTS(tty) != 0));
+	fwtty_dbg(port, "CRTSCTS: %d\n", C_CRTSCTS(tty) != 0);
 
 	fwtty_profile_fifo(port, port->stats.unthrottle);
 
diff --git a/drivers/staging/gdm724x/gdm_lte.c b/drivers/staging/gdm724x/gdm_lte.c
index 7c4a77b..a8d2cff 100644
--- a/drivers/staging/gdm724x/gdm_lte.c
+++ b/drivers/staging/gdm724x/gdm_lte.c
@@ -889,7 +889,7 @@ int register_lte_device(struct phy_dev *phy_dev,
 		/* Allocate netdev */
 		net = alloc_netdev(sizeof(struct nic), pdn_dev_name,
 				   NET_NAME_UNKNOWN, ether_setup);
-		if (net == NULL) {
+		if (!net) {
 			pr_err("alloc_netdev failed\n");
 			ret = -ENOMEM;
 			goto err;
diff --git a/drivers/staging/gdm724x/gdm_mux.c b/drivers/staging/gdm724x/gdm_mux.c
index d1ab996..8199b0a 100644
--- a/drivers/staging/gdm724x/gdm_mux.c
+++ b/drivers/staging/gdm724x/gdm_mux.c
@@ -270,7 +270,7 @@ static void gdm_mux_rcv_complete(struct urb *urb)
 
 	if (urb->status) {
 		if (mux_dev->usb_state == PM_NORMAL)
-			pr_err("%s: urb status error %d\n",
+			dev_err(&urb->dev->dev, "%s: urb status error %d\n",
 			       __func__, urb->status);
 		put_rx_struct(rx, r);
 	} else {
@@ -342,7 +342,7 @@ static void gdm_mux_send_complete(struct urb *urb)
 	struct mux_tx *t = urb->context;
 
 	if (urb->status == -ECONNRESET) {
-		pr_info("CONNRESET\n");
+		dev_info(&urb->dev->dev, "CONNRESET\n");
 		free_mux_tx(t);
 		return;
 	}
@@ -608,7 +608,7 @@ static int gdm_mux_suspend(struct usb_interface *intf, pm_message_t pm_msg)
 	rx = &mux_dev->rx;
 
 	if (mux_dev->usb_state != PM_NORMAL) {
-		pr_err("usb suspend - invalid state\n");
+		dev_err(intf->usb_dev, "usb suspend - invalid state\n");
 		return -1;
 	}
 
@@ -637,7 +637,7 @@ static int gdm_mux_resume(struct usb_interface *intf)
 	mux_dev = tty_dev->priv_dev;
 
 	if (mux_dev->usb_state != PM_SUSPEND) {
-		pr_err("usb resume - invalid state\n");
+		dev_err(intf->usb_dev, "usb resume - invalid state\n");
 		return -1;
 	}
 
diff --git a/drivers/staging/gdm724x/gdm_usb.c b/drivers/staging/gdm724x/gdm_usb.c
index d2a3b35..ed1a12f 100644
--- a/drivers/staging/gdm724x/gdm_usb.c
+++ b/drivers/staging/gdm724x/gdm_usb.c
@@ -480,7 +480,7 @@ static void gdm_usb_rcv_complete(struct urb *urb)
 		spin_unlock_irqrestore(&rx->to_host_lock, flags);
 	} else {
 		if (urb->status && udev->usb_state == PM_NORMAL)
-			pr_err("%s: urb status error %d\n",
+			dev_err(&urb->dev->dev, "%s: urb status error %d\n",
 			       __func__, urb->status);
 
 		put_rx_struct(rx, r);
@@ -557,7 +557,7 @@ static void gdm_usb_send_complete(struct urb *urb)
 	unsigned long flags;
 
 	if (urb->status == -ECONNRESET) {
-		pr_info("CONNRESET\n");
+		dev_info(&urb->dev->dev, "CONNRESET\n");
 		return;
 	}
 
@@ -590,7 +590,8 @@ static int send_tx_packet(struct usb_device *usbdev, struct usb_tx *t, u32 len)
 	ret = usb_submit_urb(t->urb, GFP_ATOMIC);
 
 	if (ret)
-		pr_err("usb_submit_urb failed: %d\n", ret);
+		dev_err(&usbdev->dev, "usb_submit_urb failed: %d\n",
+			ret);
 
 	usb_mark_last_busy(usbdev);
 
@@ -848,7 +849,7 @@ static int gdm_usb_probe(struct usb_interface *intf,
 	udev->usbdev = usbdev;
 	ret = init_usb(udev);
 	if (ret < 0) {
-		pr_err("init_usb func failed\n");
+		dev_err(intf->usb_dev, "init_usb func failed\n");
 		goto err_init_usb;
 	}
 	udev->intf = intf;
@@ -867,7 +868,7 @@ static int gdm_usb_probe(struct usb_interface *intf,
 
 	ret = request_mac_address(udev);
 	if (ret < 0) {
-		pr_err("request Mac address failed\n");
+		dev_err(intf->usb_dev, "request Mac address failed\n");
 		goto err_mac_address;
 	}
 
@@ -928,7 +929,7 @@ static int gdm_usb_suspend(struct usb_interface *intf, pm_message_t pm_msg)
 	udev = phy_dev->priv_dev;
 	rx = &udev->rx;
 	if (udev->usb_state != PM_NORMAL) {
-		pr_err("usb suspend - invalid state\n");
+		dev_err(intf->usb_dev, "usb suspend - invalid state\n");
 		return -1;
 	}
 
@@ -961,7 +962,7 @@ static int gdm_usb_resume(struct usb_interface *intf)
 	rx = &udev->rx;
 
 	if (udev->usb_state != PM_SUSPEND) {
-		pr_err("usb resume - invalid state\n");
+		dev_err(intf->usb_dev, "usb resume - invalid state\n");
 		return -1;
 	}
 	udev->usb_state = PM_NORMAL;
diff --git a/drivers/staging/gdm72xx/gdm_qos.c b/drivers/staging/gdm72xx/gdm_qos.c
index af24c57..96bf2bf 100644
--- a/drivers/staging/gdm72xx/gdm_qos.c
+++ b/drivers/staging/gdm72xx/gdm_qos.c
@@ -54,8 +54,7 @@ static void *alloc_qos_entry(void)
 	}
 	spin_unlock_irqrestore(&qos_free_list.lock, flags);
 
-	entry = kmalloc(sizeof(*entry), GFP_ATOMIC);
-	return entry;
+	return kmalloc(sizeof(*entry), GFP_ATOMIC);
 }
 
 static void free_qos_entry(void *entry)
diff --git a/drivers/staging/gdm72xx/gdm_sdio.c b/drivers/staging/gdm72xx/gdm_sdio.c
index 7a0a0f2..a5fd079 100644
--- a/drivers/staging/gdm72xx/gdm_sdio.c
+++ b/drivers/staging/gdm72xx/gdm_sdio.c
@@ -223,8 +223,7 @@ static void send_sdio_pkt(struct sdio_func *func, u8 *data, int len)
 		if (ret < 0) {
 			if (ret != -ENOMEDIUM)
 				dev_err(&func->dev,
-					"gdmwms: %s error: ret = %d\n",
-					__func__, ret);
+					"gdmwms:  error: ret = %d\n", ret);
 			goto end_io;
 		}
 	}
@@ -237,8 +236,7 @@ static void send_sdio_pkt(struct sdio_func *func, u8 *data, int len)
 		if (ret < 0) {
 			if (ret != -ENOMEDIUM)
 				dev_err(&func->dev,
-					"gdmwms: %s error: ret = %d\n",
-					__func__, ret);
+					"gdmwms:  error: ret = %d\n", ret);
 			goto end_io;
 		}
 	}
diff --git a/drivers/staging/gdm72xx/gdm_wimax.c b/drivers/staging/gdm72xx/gdm_wimax.c
index 9cab54b..61d168e 100644
--- a/drivers/staging/gdm72xx/gdm_wimax.c
+++ b/drivers/staging/gdm72xx/gdm_wimax.c
@@ -129,11 +129,11 @@ static void __gdm_wimax_event_send(struct work_struct *work)
 	int idx;
 	unsigned long flags;
 	struct evt_entry *e;
+	struct evt_entry *tmp;
 
 	spin_lock_irqsave(&wm_event.evt_lock, flags);
 
-	while (!list_empty(&wm_event.evtq)) {
-		e = list_entry(wm_event.evtq.next, struct evt_entry, list);
+	list_for_each_entry_safe(e, tmp, &wm_event.evtq, list) {
 		spin_unlock_irqrestore(&wm_event.evt_lock, flags);
 
 		if (sscanf(e->dev->name, "wm%d", &idx) == 1)
@@ -749,7 +749,7 @@ int register_wimax_device(struct phy_dev *phy_dev, struct device *pdev)
 	dev = alloc_netdev(sizeof(*nic), "wm%d", NET_NAME_UNKNOWN,
 			   ether_setup);
 
-	if (dev == NULL) {
+	if (!dev) {
 		pr_err("alloc_etherdev failed\n");
 		return -ENOMEM;
 	}
diff --git a/drivers/staging/goldfish/goldfish_audio.c b/drivers/staging/goldfish/goldfish_audio.c
index f200359..702ae04 100644
--- a/drivers/staging/goldfish/goldfish_audio.c
+++ b/drivers/staging/goldfish/goldfish_audio.c
@@ -40,12 +40,12 @@ struct goldfish_audio {
 	spinlock_t lock;
 	wait_queue_head_t wait;
 
-	char __iomem *buffer_virt;      /* combined buffer virtual address */
+	char *buffer_virt;		/* combined buffer virtual address */
 	unsigned long buffer_phys;      /* combined buffer physical address */
 
-	char __iomem *write_buffer1;    /* write buffer 1 virtual address */
-	char __iomem *write_buffer2;    /* write buffer 2 virtual address */
-	char __iomem *read_buffer;      /* read buffer virtual address */
+	char *write_buffer1;		/* write buffer 1 virtual address */
+	char *write_buffer2;		/* write buffer 2 virtual address */
+	char *read_buffer;		/* read buffer virtual address */
 	int buffer_status;
 	int read_supported;         /* true if we have audio input support */
 };
@@ -125,8 +125,8 @@ static ssize_t goldfish_audio_read(struct file *fp, char __user *buf,
 		length = (count > READ_BUFFER_SIZE ? READ_BUFFER_SIZE : count);
 		AUDIO_WRITE(data, AUDIO_START_READ, length);
 
-		wait_event_interruptible(data->wait, (data->buffer_status &
-					 AUDIO_INT_READ_BUFFER_FULL));
+		wait_event_interruptible(data->wait, data->buffer_status &
+					 AUDIO_INT_READ_BUFFER_FULL);
 
 		length = AUDIO_READ(data, AUDIO_READ_BUFFER_AVAILABLE);
 
@@ -147,16 +147,16 @@ static ssize_t goldfish_audio_write(struct file *fp, const char __user *buf,
 	struct goldfish_audio *data = fp->private_data;
 	unsigned long irq_flags;
 	ssize_t result = 0;
-	char __iomem *kbuf;
+	char *kbuf;
 
 	while (count > 0) {
 		ssize_t copy = count;
 
 		if (copy > WRITE_BUFFER_SIZE)
 			copy = WRITE_BUFFER_SIZE;
-		wait_event_interruptible(data->wait, (data->buffer_status &
+		wait_event_interruptible(data->wait, data->buffer_status &
 					(AUDIO_INT_WRITE_BUFFER_1_EMPTY |
-					AUDIO_INT_WRITE_BUFFER_2_EMPTY)));
+					AUDIO_INT_WRITE_BUFFER_2_EMPTY));
 
 		if ((data->buffer_status & AUDIO_INT_WRITE_BUFFER_1_EMPTY) != 0)
 			kbuf = data->write_buffer1;
@@ -273,7 +273,7 @@ static int goldfish_audio_probe(struct platform_device *pdev)
 	dma_addr_t buf_addr;
 
 	data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
-	if (data == NULL)
+	if (!data)
 		return -ENOMEM;
 	spin_lock_init(&data->lock);
 	init_waitqueue_head(&data->wait);
diff --git a/drivers/staging/goldfish/goldfish_nand.c b/drivers/staging/goldfish/goldfish_nand.c
index d68f216..213877a 100644
--- a/drivers/staging/goldfish/goldfish_nand.c
+++ b/drivers/staging/goldfish/goldfish_nand.c
@@ -330,7 +330,7 @@ static int goldfish_nand_init_device(struct platform_device *pdev,
 	mtd->priv = nand;
 
 	name = devm_kzalloc(&pdev->dev, name_len + 1, GFP_KERNEL);
-	if (name == NULL)
+	if (!name)
 		return -ENOMEM;
 	mtd->name = name;
 
@@ -383,7 +383,7 @@ static int goldfish_nand_probe(struct platform_device *pdev)
 		return -ENODEV;
 
 	base = devm_ioremap(&pdev->dev, r->start, PAGE_SIZE);
-	if (base == NULL)
+	if (!base)
 		return -ENOMEM;
 
 	version = readl(base + NAND_VERSION);
@@ -399,7 +399,7 @@ static int goldfish_nand_probe(struct platform_device *pdev)
 
 	nand = devm_kzalloc(&pdev->dev, sizeof(*nand) +
 				sizeof(struct mtd_info) * num_dev, GFP_KERNEL);
-	if (nand == NULL)
+	if (!nand)
 		return -ENOMEM;
 
 	mutex_init(&nand->lock);
diff --git a/drivers/staging/gs_fpgaboot/gs_fpgaboot.c b/drivers/staging/gs_fpgaboot/gs_fpgaboot.c
index 6da7285..a3a10f9 100644
--- a/drivers/staging/gs_fpgaboot/gs_fpgaboot.c
+++ b/drivers/staging/gs_fpgaboot/gs_fpgaboot.c
@@ -17,7 +17,6 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/module.h>
-#include <linux/moduleparam.h>
 #include <linux/types.h>
 #include <linux/device.h>
 #include <linux/string.h>
diff --git a/drivers/staging/i2o/bus-osm.c b/drivers/staging/i2o/bus-osm.c
index 7aa0339..43e357e 100644
--- a/drivers/staging/i2o/bus-osm.c
+++ b/drivers/staging/i2o/bus-osm.c
@@ -69,7 +69,8 @@ static ssize_t i2o_bus_store_scan(struct device *d,
 	struct i2o_device *i2o_dev = to_i2o_device(d);
 	int rc;
 
-	if ((rc = i2o_bus_scan(i2o_dev)))
+	rc = i2o_bus_scan(i2o_dev);
+	if (rc)
 		osm_warn("bus scan failed %d\n", rc);
 
 	return count;
diff --git a/drivers/staging/i2o/config-osm.c b/drivers/staging/i2o/config-osm.c
index 519f52f..45091ac 100644
--- a/drivers/staging/i2o/config-osm.c
+++ b/drivers/staging/i2o/config-osm.c
@@ -19,7 +19,7 @@
 #include <linux/namei.h>
 #include <linux/fs.h>
 
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
 
 #define OSM_NAME	"config-osm"
 #define OSM_VERSION	"1.323"
diff --git a/drivers/staging/i2o/debug.c b/drivers/staging/i2o/debug.c
index 7a16114..12b783b2 100644
--- a/drivers/staging/i2o/debug.c
+++ b/drivers/staging/i2o/debug.c
@@ -5,7 +5,7 @@
 
 static void i2o_report_util_cmd(u8 cmd);
 static void i2o_report_exec_cmd(u8 cmd);
-static void i2o_report_fail_status(u8 req_status, u32 * msg);
+static void i2o_report_fail_status(u8 req_status, u32 *msg);
 static void i2o_report_common_status(u8 req_status);
 static void i2o_report_common_dsc(u16 detailed_status);
 
@@ -22,7 +22,7 @@ void i2o_report_status(const char *severity, const char *str,
 	u16 detailed_status = msg[4] & 0xFFFF;
 
 	if (cmd == I2O_CMD_UTIL_EVT_REGISTER)
-		return;		// No status in this reply
+		return;		/* No status in this reply */
 
 	printk("%s%s: ", severity, str);
 
@@ -54,6 +54,7 @@ void i2o_dump_message(struct i2o_message *m)
 #ifdef DEBUG
 	u32 *msg = (u32 *) m;
 	int i;
+
 	printk(KERN_INFO "Dumping I2O message size %d @ %p\n",
 	       msg[0] >> 16 & 0xffff, msg);
 	for (i = 0; i < ((msg[0] >> 16) & 0xffff); i++)
@@ -66,7 +67,7 @@ void i2o_dump_message(struct i2o_message *m)
  * Following fail status are common to all classes.
  * The preserved message must be handled in the reply handler.
  */
-static void i2o_report_fail_status(u8 req_status, u32 * msg)
+static void i2o_report_fail_status(u8 req_status, u32 *msg)
 {
 	static char *FAIL_STATUS[] = {
 		"0x80",		/* not used */
diff --git a/drivers/staging/i2o/device.c b/drivers/staging/i2o/device.c
index 2af2255..e47496c 100644
--- a/drivers/staging/i2o/device.c
+++ b/drivers/staging/i2o/device.c
@@ -565,10 +565,8 @@ int i2o_parm_table_get(struct i2o_device *dev, int oper, int group,
 		size += 4 - size % 4;
 
 	opblk = kmalloc(size, GFP_KERNEL);
-	if (opblk == NULL) {
-		printk(KERN_ERR "i2o: no memory for query buffer.\n");
+	if (opblk == NULL)
 		return -ENOMEM;
-	}
 
 	opblk[0] = 1;		/* operation count */
 	opblk[1] = 0;		/* pad */
diff --git a/drivers/staging/i2o/driver.c b/drivers/staging/i2o/driver.c
index 111c3ed..06119bb 100644
--- a/drivers/staging/i2o/driver.c
+++ b/drivers/staging/i2o/driver.c
@@ -102,8 +102,7 @@ int i2o_driver_register(struct i2o_driver *drv)
 
 	for (i = 0; i2o_drivers[i]; i++)
 		if (i >= i2o_max_drivers) {
-			osm_err("too many drivers registered, increase "
-				"max_drivers\n");
+			osm_err("too many drivers registered, increase max_drivers\n");
 			spin_unlock_irqrestore(&i2o_drivers_lock, flags);
 			rc = -EFAULT;
 			goto out;
@@ -244,8 +243,8 @@ int i2o_driver_dispatch(struct i2o_controller *c, u32 m)
 	}
 
 	if (unlikely(!drv->reply)) {
-		osm_debug("%s: Reply to driver %s, but no reply function"
-			  " defined!\n", c->name, drv->name);
+		osm_debug("%s: Reply to driver %s, but no reply function defined!\n",
+			c->name, drv->name);
 		return -EIO;
 	}
 
diff --git a/drivers/staging/i2o/exec-osm.c b/drivers/staging/i2o/exec-osm.c
index 16d857d..dce16e4 100644
--- a/drivers/staging/i2o/exec-osm.c
+++ b/drivers/staging/i2o/exec-osm.c
@@ -507,8 +507,8 @@ static int i2o_exec_reply(struct i2o_controller *c, u32 m,
 	 * to aid in debugging.
 	 *
 	 */
-	printk(KERN_WARNING "%s: Unsolicited message reply sent to core!"
-	       "Message dumped to syslog\n", c->name);
+	printk(KERN_WARNING "%s: Unsolicited message reply sent to core! Message dumped to syslog\n",
+			c->name);
 	i2o_dump_message(msg);
 
 	return -EFAULT;
diff --git a/drivers/staging/i2o/i2o_block.c b/drivers/staging/i2o/i2o_block.c
index 0a13c64..406758f 100644
--- a/drivers/staging/i2o/i2o_block.c
+++ b/drivers/staging/i2o/i2o_block.c
@@ -871,13 +871,13 @@ static int i2o_block_transfer(struct request *req)
 
 	return 0;
 
-      context_remove:
+context_remove:
 	i2o_cntxt_list_remove(c, req);
 
-      nop_msg:
+nop_msg:
 	i2o_msg_nop(c, msg);
 
-      exit:
+exit:
 	return rc;
 };
 
@@ -1002,13 +1002,13 @@ static struct i2o_block_device *i2o_block_device_alloc(void)
 
 	return dev;
 
-      cleanup_queue:
+cleanup_queue:
 	put_disk(gd);
 
-      cleanup_dev:
+cleanup_dev:
 	kfree(dev);
 
-      exit:
+exit:
 	return ERR_PTR(rc);
 };
 
@@ -1028,7 +1028,7 @@ static int i2o_block_probe(struct device *dev)
 	struct i2o_block_device *i2o_blk_dev;
 	struct gendisk *gd;
 	struct request_queue *queue;
-	static int unit = 0;
+	static int unit;
 	int rc;
 	u64 size;
 	u32 blocksize;
@@ -1115,10 +1115,10 @@ static int i2o_block_probe(struct device *dev)
 
 	return 0;
 
-      claim_release:
+claim_release:
 	i2o_device_claim_release(i2o_dev);
 
-      exit:
+exit:
 	return rc;
 };
 
@@ -1187,16 +1187,16 @@ static int __init i2o_block_init(void)
 
 	return 0;
 
-      unregister_blkdev:
+unregister_blkdev:
 	unregister_blkdev(I2O_MAJOR, "i2o_block");
 
-      free_mempool:
+free_mempool:
 	mempool_destroy(i2o_blk_req_pool.pool);
 
-      free_slab:
+free_slab:
 	kmem_cache_destroy(i2o_blk_req_pool.slab);
 
-      exit:
+exit:
 	return rc;
 };
 
diff --git a/drivers/staging/i2o/i2o_config.c b/drivers/staging/i2o/i2o_config.c
index 04bd3b6..cd7ca5e 100644
--- a/drivers/staging/i2o/i2o_config.c
+++ b/drivers/staging/i2o/i2o_config.c
@@ -34,8 +34,7 @@
 #include <linux/mutex.h>
 #include <linux/compat.h>
 #include <linux/slab.h>
-
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
 
 #include "core.h"
 
@@ -65,7 +64,7 @@ struct i2o_cfg_info {
 	struct i2o_cfg_info *next;
 };
 static struct i2o_cfg_info *open_files = NULL;
-static ulong i2o_cfg_info_id = 0;
+static ulong i2o_cfg_info_id;
 
 static int i2o_cfg_getiops(unsigned long arg)
 {
diff --git a/drivers/staging/i2o/i2o_proc.c b/drivers/staging/i2o/i2o_proc.c
index ad84f33..780fee3 100644
--- a/drivers/staging/i2o/i2o_proc.c
+++ b/drivers/staging/i2o/i2o_proc.c
@@ -48,9 +48,9 @@
 #include <linux/errno.h>
 #include <linux/spinlock.h>
 #include <linux/workqueue.h>
+#include <linux/uaccess.h>
 
 #include <asm/io.h>
-#include <asm/uaccess.h>
 #include <asm/byteorder.h>
 
 /* Structure used to define /proc entries */
@@ -85,9 +85,8 @@ static int print_serial_number(struct seq_file *seq, u8 * serialno, int max_len)
 	switch (serialno[0]) {
 	case I2O_SNFORMAT_BINARY:	/* Binary */
 		seq_printf(seq, "0x");
-		for (i = 0; i < serialno[1]; i++) {
+		for (i = 0; i < serialno[1]; i++)
 			seq_printf(seq, "%02X", serialno[2 + i]);
-		}
 		break;
 
 	case I2O_SNFORMAT_ASCII:	/* ASCII */
@@ -101,9 +100,8 @@ static int print_serial_number(struct seq_file *seq, u8 * serialno, int max_len)
 			seq_printf(seq, "%s", &serialno[2]);
 		} else {
 			/* print chars for specified length */
-			for (i = 0; i < serialno[1]; i++) {
+			for (i = 0; i < serialno[1]; i++)
 				seq_printf(seq, "%c", serialno[2 + i]);
-			}
 		}
 		break;
 
@@ -266,16 +264,22 @@ static int i2o_report_query_status(struct seq_file *seq, int block_status,
 {
 	switch (block_status) {
 	case -ETIMEDOUT:
-		return seq_printf(seq, "Timeout reading group %s.\n", group);
+		seq_printf(seq, "Timeout reading group %s.\n", group);
+		break;
 	case -ENOMEM:
-		return seq_printf(seq, "No free memory to read the table.\n");
+		seq_puts(seq, "No free memory to read the table.\n");
+		break;
 	case -I2O_PARAMS_STATUS_INVALID_GROUP_ID:
-		return seq_printf(seq, "Group %s not supported.\n", group);
+		seq_printf(seq, "Group %s not supported.\n", group);
+		break;
 	default:
-		return seq_printf(seq,
-				  "Error reading group %s. BlockStatus 0x%02X\n",
-				  group, -block_status);
+		seq_printf(seq,
+			   "Error reading group %s. BlockStatus 0x%02X\n",
+			   group, -block_status);
+		break;
 	}
+
+	return 0;
 }
 
 static char *bus_strings[] = {
diff --git a/drivers/staging/i2o/iop.c b/drivers/staging/i2o/iop.c
index 52334fc..23bdbe4 100644
--- a/drivers/staging/i2o/iop.c
+++ b/drivers/staging/i2o/iop.c
@@ -1042,7 +1042,7 @@ static void i2o_iop_release(struct device *dev)
  */
 struct i2o_controller *i2o_iop_alloc(void)
 {
-	static int unit = 0;	/* 0 and 1 are NULL IOP and Local Host */
+	static int unit;	/* 0 and 1 are NULL IOP and Local Host */
 	struct i2o_controller *c;
 	char poolname[32];
 
@@ -1096,7 +1096,8 @@ int i2o_iop_add(struct i2o_controller *c)
 {
 	int rc;
 
-	if ((rc = device_add(&c->device))) {
+	rc = device_add(&c->device);
+	if (rc) {
 		osm_err("%s: could not add controller\n", c->name);
 		goto iop_reset;
 	}
@@ -1105,24 +1106,28 @@ int i2o_iop_add(struct i2o_controller *c)
 	osm_info("%s: This may take a few minutes if there are many devices\n",
 		 c->name);
 
-	if ((rc = i2o_iop_activate(c))) {
+	rc = i2o_iop_activate(c);
+	if (rc) {
 		osm_err("%s: could not activate controller\n", c->name);
 		goto device_del;
 	}
 
 	osm_debug("%s: building sys table...\n", c->name);
 
-	if ((rc = i2o_systab_build()))
+	rc = i2o_systab_build();
+	if (rc)
 		goto device_del;
 
 	osm_debug("%s: online controller...\n", c->name);
 
-	if ((rc = i2o_iop_online(c)))
+	rc = i2o_iop_online(c);
+	if (rc)
 		goto device_del;
 
 	osm_debug("%s: getting LCT...\n", c->name);
 
-	if ((rc = i2o_exec_lct_get(c)))
+	rc = i2o_exec_lct_get(c);
+	if (rc)
 		goto device_del;
 
 	list_add(&c->list, &i2o_controllers);
@@ -1192,13 +1197,16 @@ static int __init i2o_iop_init(void)
 
 	printk(KERN_INFO OSM_DESCRIPTION " v" OSM_VERSION "\n");
 
-	if ((rc = i2o_driver_init()))
+	rc = i2o_driver_init();
+	if (rc)
 		goto exit;
 
-	if ((rc = i2o_exec_init()))
+	rc = i2o_exec_init();
+	if (rc)
 		goto driver_exit;
 
-	if ((rc = i2o_pci_init()))
+	rc = i2o_pci_init();
+	if (rc)
 		goto exec_exit;
 
 	return 0;
diff --git a/drivers/staging/i2o/memory.c b/drivers/staging/i2o/memory.c
index 8f9509d..78b702c 100644
--- a/drivers/staging/i2o/memory.c
+++ b/drivers/staging/i2o/memory.c
@@ -270,10 +270,9 @@ EXPORT_SYMBOL_GPL(i2o_dma_realloc);
 int i2o_pool_alloc(struct i2o_pool *pool, const char *name,
 				 size_t size, int min_nr)
 {
-	pool->name = kmalloc(strlen(name) + 1, GFP_KERNEL);
+	pool->name = kstrdup(name, GFP_KERNEL);
 	if (!pool->name)
 		goto exit;
-	strcpy(pool->name, name);
 
 	pool->slab =
 	    kmem_cache_create(pool->name, size, 0, SLAB_HWCACHE_ALIGN, NULL);
diff --git a/drivers/staging/i2o/pci.c b/drivers/staging/i2o/pci.c
index b3b8a61..49804c9 100644
--- a/drivers/staging/i2o/pci.c
+++ b/drivers/staging/i2o/pci.c
@@ -329,7 +329,8 @@ static int i2o_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 		return -ENODEV;
 	}
 
-	if ((rc = pci_enable_device(pdev))) {
+	rc = pci_enable_device(pdev);
+	if (rc) {
 		printk(KERN_WARNING "i2o: couldn't enable device %s\n",
 		       pci_name(pdev));
 		return rc;
@@ -410,7 +411,8 @@ static int i2o_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 #endif
 	}
 
-	if ((rc = i2o_pci_alloc(c))) {
+	rc = i2o_pci_alloc(c);
+	if (rc) {
 		printk(KERN_ERR "%s: DMA / IO allocation for I2O controller "
 		       "failed\n", c->name);
 		goto free_controller;
@@ -422,7 +424,8 @@ static int i2o_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 		goto free_pci;
 	}
 
-	if ((rc = i2o_iop_add(c)))
+	rc = i2o_iop_add(c);
+	if (rc)
 		goto uninstall;
 
 	if (i960)
diff --git a/drivers/staging/iio/Kconfig b/drivers/staging/iio/Kconfig
index 2418302..6d5b38d 100644
--- a/drivers/staging/iio/Kconfig
+++ b/drivers/staging/iio/Kconfig
@@ -38,6 +38,7 @@ config IIO_SIMPLE_DUMMY_EVENTS
 config IIO_SIMPLE_DUMMY_BUFFER
 	bool "Buffered capture support"
 	select IIO_BUFFER
+	select IIO_TRIGGER
 	select IIO_KFIFO_BUF
 	help
 	  Add buffered data capture to the simple dummy driver.
diff --git a/drivers/staging/iio/accel/adis16201.h b/drivers/staging/iio/accel/adis16201.h
index 8747de5..e6b8c9a 100644
--- a/drivers/staging/iio/accel/adis16201.h
+++ b/drivers/staging/iio/accel/adis16201.h
@@ -34,24 +34,24 @@
 #define ADIS16201_GLOB_CMD       0x3E /* Operation, system command register */
 
 /* MSC_CTRL */
-#define ADIS16201_MSC_CTRL_SELF_TEST_EN	        (1 << 8)  /* Self-test enable */
-#define ADIS16201_MSC_CTRL_DATA_RDY_EN	        (1 << 2)  /* Data-ready enable: 1 = enabled, 0 = disabled */
-#define ADIS16201_MSC_CTRL_ACTIVE_HIGH	        (1 << 1)  /* Data-ready polarity: 1 = active high, 0 = active low */
-#define ADIS16201_MSC_CTRL_DATA_RDY_DIO1	(1 << 0)  /* Data-ready line selection: 1 = DIO1, 0 = DIO0 */
+#define ADIS16201_MSC_CTRL_SELF_TEST_EN	        BIT(8)  /* Self-test enable */
+#define ADIS16201_MSC_CTRL_DATA_RDY_EN	        BIT(2)  /* Data-ready enable: 1 = enabled, 0 = disabled */
+#define ADIS16201_MSC_CTRL_ACTIVE_HIGH	        BIT(1)  /* Data-ready polarity: 1 = active high, 0 = active low */
+#define ADIS16201_MSC_CTRL_DATA_RDY_DIO1	BIT(0)  /* Data-ready line selection: 1 = DIO1, 0 = DIO0 */
 
 /* DIAG_STAT */
-#define ADIS16201_DIAG_STAT_ALARM2        (1<<9) /* Alarm 2 status: 1 = alarm active, 0 = alarm inactive */
-#define ADIS16201_DIAG_STAT_ALARM1        (1<<8) /* Alarm 1 status: 1 = alarm active, 0 = alarm inactive */
+#define ADIS16201_DIAG_STAT_ALARM2        BIT(9) /* Alarm 2 status: 1 = alarm active, 0 = alarm inactive */
+#define ADIS16201_DIAG_STAT_ALARM1        BIT(8) /* Alarm 1 status: 1 = alarm active, 0 = alarm inactive */
 #define ADIS16201_DIAG_STAT_SPI_FAIL_BIT   3 /* SPI communications failure */
 #define ADIS16201_DIAG_STAT_FLASH_UPT_BIT  2 /* Flash update failure */
 #define ADIS16201_DIAG_STAT_POWER_HIGH_BIT 1 /* Power supply above 3.625 V */
 #define ADIS16201_DIAG_STAT_POWER_LOW_BIT  0 /* Power supply below 3.15 V */
 
 /* GLOB_CMD */
-#define ADIS16201_GLOB_CMD_SW_RESET	(1<<7)
-#define ADIS16201_GLOB_CMD_FACTORY_CAL	(1<<1)
+#define ADIS16201_GLOB_CMD_SW_RESET	BIT(7)
+#define ADIS16201_GLOB_CMD_FACTORY_CAL	BIT(1)
 
-#define ADIS16201_ERROR_ACTIVE          (1<<14)
+#define ADIS16201_ERROR_ACTIVE          BIT(14)
 
 enum adis16201_scan {
 	ADIS16201_SCAN_ACC_X,
diff --git a/drivers/staging/iio/accel/adis16201_core.c b/drivers/staging/iio/accel/adis16201_core.c
index 7eae5fd..10db685 100644
--- a/drivers/staging/iio/accel/adis16201_core.c
+++ b/drivers/staging/iio/accel/adis16201_core.c
@@ -135,14 +135,14 @@ static const struct iio_chan_spec adis16201_channels[] = {
 	ADIS_SUPPLY_CHAN(ADIS16201_SUPPLY_OUT, ADIS16201_SCAN_SUPPLY, 0, 12),
 	ADIS_TEMP_CHAN(ADIS16201_TEMP_OUT, ADIS16201_SCAN_TEMP, 0, 12),
 	ADIS_ACCEL_CHAN(X, ADIS16201_XACCL_OUT, ADIS16201_SCAN_ACC_X,
-		BIT(IIO_CHAN_INFO_CALIBBIAS), 0, 14),
+			BIT(IIO_CHAN_INFO_CALIBBIAS), 0, 14),
 	ADIS_ACCEL_CHAN(Y, ADIS16201_YACCL_OUT, ADIS16201_SCAN_ACC_Y,
-		BIT(IIO_CHAN_INFO_CALIBBIAS), 0, 14),
+			BIT(IIO_CHAN_INFO_CALIBBIAS), 0, 14),
 	ADIS_AUX_ADC_CHAN(ADIS16201_AUX_ADC, ADIS16201_SCAN_AUX_ADC, 0, 12),
 	ADIS_INCLI_CHAN(X, ADIS16201_XINCL_OUT, ADIS16201_SCAN_INCLI_X,
-		BIT(IIO_CHAN_INFO_CALIBBIAS), 0, 14),
+			BIT(IIO_CHAN_INFO_CALIBBIAS), 0, 14),
 	ADIS_INCLI_CHAN(X, ADIS16201_YINCL_OUT, ADIS16201_SCAN_INCLI_Y,
-		BIT(IIO_CHAN_INFO_CALIBBIAS), 0, 14),
+			BIT(IIO_CHAN_INFO_CALIBBIAS), 0, 14),
 	IIO_CHAN_SOFT_TIMESTAMP(7)
 };
 
diff --git a/drivers/staging/iio/accel/adis16203.h b/drivers/staging/iio/accel/adis16203.h
index acc688d..6426e38 100644
--- a/drivers/staging/iio/accel/adis16203.h
+++ b/drivers/staging/iio/accel/adis16203.h
@@ -25,16 +25,16 @@
 #define ADIS16203_GLOB_CMD       0x3E /* Operation, system command register */
 
 /* MSC_CTRL */
-#define ADIS16203_MSC_CTRL_PWRUP_SELF_TEST	(1 << 10) /* Self-test at power-on: 1 = disabled, 0 = enabled */
-#define ADIS16203_MSC_CTRL_REVERSE_ROT_EN	(1 << 9)  /* Reverses rotation of both inclination outputs */
-#define ADIS16203_MSC_CTRL_SELF_TEST_EN	        (1 << 8)  /* Self-test enable */
-#define ADIS16203_MSC_CTRL_DATA_RDY_EN	        (1 << 2)  /* Data-ready enable: 1 = enabled, 0 = disabled */
-#define ADIS16203_MSC_CTRL_ACTIVE_HIGH	        (1 << 1)  /* Data-ready polarity: 1 = active high, 0 = active low */
-#define ADIS16203_MSC_CTRL_DATA_RDY_DIO1	(1 << 0)  /* Data-ready line selection: 1 = DIO1, 0 = DIO0 */
+#define ADIS16203_MSC_CTRL_PWRUP_SELF_TEST	BIT(10) /* Self-test at power-on: 1 = disabled, 0 = enabled */
+#define ADIS16203_MSC_CTRL_REVERSE_ROT_EN	BIT(9)  /* Reverses rotation of both inclination outputs */
+#define ADIS16203_MSC_CTRL_SELF_TEST_EN	        BIT(8)  /* Self-test enable */
+#define ADIS16203_MSC_CTRL_DATA_RDY_EN	        BIT(2)  /* Data-ready enable: 1 = enabled, 0 = disabled */
+#define ADIS16203_MSC_CTRL_ACTIVE_HIGH	        BIT(1)  /* Data-ready polarity: 1 = active high, 0 = active low */
+#define ADIS16203_MSC_CTRL_DATA_RDY_DIO1	BIT(0)  /* Data-ready line selection: 1 = DIO1, 0 = DIO0 */
 
 /* DIAG_STAT */
-#define ADIS16203_DIAG_STAT_ALARM2        (1<<9) /* Alarm 2 status: 1 = alarm active, 0 = alarm inactive */
-#define ADIS16203_DIAG_STAT_ALARM1        (1<<8) /* Alarm 1 status: 1 = alarm active, 0 = alarm inactive */
+#define ADIS16203_DIAG_STAT_ALARM2        BIT(9) /* Alarm 2 status: 1 = alarm active, 0 = alarm inactive */
+#define ADIS16203_DIAG_STAT_ALARM1        BIT(8) /* Alarm 1 status: 1 = alarm active, 0 = alarm inactive */
 #define ADIS16203_DIAG_STAT_SELFTEST_FAIL_BIT 5 /* Self-test diagnostic error flag */
 #define ADIS16203_DIAG_STAT_SPI_FAIL_BIT      3 /* SPI communications failure */
 #define ADIS16203_DIAG_STAT_FLASH_UPT_BIT     2 /* Flash update failure */
@@ -42,11 +42,11 @@
 #define ADIS16203_DIAG_STAT_POWER_LOW_BIT     0 /* Power supply below 3.15 V */
 
 /* GLOB_CMD */
-#define ADIS16203_GLOB_CMD_SW_RESET	(1<<7)
-#define ADIS16203_GLOB_CMD_CLEAR_STAT	(1<<4)
-#define ADIS16203_GLOB_CMD_FACTORY_CAL	(1<<1)
+#define ADIS16203_GLOB_CMD_SW_RESET	BIT(7)
+#define ADIS16203_GLOB_CMD_CLEAR_STAT	BIT(4)
+#define ADIS16203_GLOB_CMD_FACTORY_CAL	BIT(1)
 
-#define ADIS16203_ERROR_ACTIVE          (1<<14)
+#define ADIS16203_ERROR_ACTIVE          BIT(14)
 
 enum adis16203_scan {
 	ADIS16203_SCAN_INCLI_X,
diff --git a/drivers/staging/iio/accel/adis16203_core.c b/drivers/staging/iio/accel/adis16203_core.c
index fbbe93f..fb593d2 100644
--- a/drivers/staging/iio/accel/adis16203_core.c
+++ b/drivers/staging/iio/accel/adis16203_core.c
@@ -104,10 +104,10 @@ static const struct iio_chan_spec adis16203_channels[] = {
 	ADIS_SUPPLY_CHAN(ADIS16203_SUPPLY_OUT, ADIS16203_SCAN_SUPPLY, 0, 12),
 	ADIS_AUX_ADC_CHAN(ADIS16203_AUX_ADC, ADIS16203_SCAN_AUX_ADC, 0, 12),
 	ADIS_INCLI_CHAN(X, ADIS16203_XINCL_OUT, ADIS16203_SCAN_INCLI_X,
-		BIT(IIO_CHAN_INFO_CALIBBIAS), 0, 14),
+			BIT(IIO_CHAN_INFO_CALIBBIAS), 0, 14),
 	/* Fixme: Not what it appears to be - see data sheet */
 	ADIS_INCLI_CHAN(Y, ADIS16203_YINCL_OUT, ADIS16203_SCAN_INCLI_Y,
-		0, 0, 14),
+			0, 0, 14),
 	ADIS_TEMP_CHAN(ADIS16203_TEMP_OUT, ADIS16203_SCAN_TEMP, 0, 12),
 	IIO_CHAN_SOFT_TIMESTAMP(5),
 };
diff --git a/drivers/staging/iio/accel/adis16204.h b/drivers/staging/iio/accel/adis16204.h
index 9ff950c..0b23f0b 100644
--- a/drivers/staging/iio/accel/adis16204.h
+++ b/drivers/staging/iio/accel/adis16204.h
@@ -33,15 +33,15 @@
 #define ADIS16204_GLOB_CMD       0x3E /* Operation, system command register */
 
 /* MSC_CTRL */
-#define ADIS16204_MSC_CTRL_PWRUP_SELF_TEST	(1 << 10) /* Self-test at power-on: 1 = disabled, 0 = enabled */
-#define ADIS16204_MSC_CTRL_SELF_TEST_EN	        (1 << 8)  /* Self-test enable */
-#define ADIS16204_MSC_CTRL_DATA_RDY_EN	        (1 << 2)  /* Data-ready enable: 1 = enabled, 0 = disabled */
-#define ADIS16204_MSC_CTRL_ACTIVE_HIGH	        (1 << 1)  /* Data-ready polarity: 1 = active high, 0 = active low */
-#define ADIS16204_MSC_CTRL_DATA_RDY_DIO2	(1 << 0)  /* Data-ready line selection: 1 = DIO2, 0 = DIO1 */
+#define ADIS16204_MSC_CTRL_PWRUP_SELF_TEST	BIT(10) /* Self-test at power-on: 1 = disabled, 0 = enabled */
+#define ADIS16204_MSC_CTRL_SELF_TEST_EN	        BIT(8)  /* Self-test enable */
+#define ADIS16204_MSC_CTRL_DATA_RDY_EN	        BIT(2)  /* Data-ready enable: 1 = enabled, 0 = disabled */
+#define ADIS16204_MSC_CTRL_ACTIVE_HIGH	        BIT(1)  /* Data-ready polarity: 1 = active high, 0 = active low */
+#define ADIS16204_MSC_CTRL_DATA_RDY_DIO2	BIT(0)  /* Data-ready line selection: 1 = DIO2, 0 = DIO1 */
 
 /* DIAG_STAT */
-#define ADIS16204_DIAG_STAT_ALARM2        (1<<9) /* Alarm 2 status: 1 = alarm active, 0 = alarm inactive */
-#define ADIS16204_DIAG_STAT_ALARM1        (1<<8) /* Alarm 1 status: 1 = alarm active, 0 = alarm inactive */
+#define ADIS16204_DIAG_STAT_ALARM2        BIT(9) /* Alarm 2 status: 1 = alarm active, 0 = alarm inactive */
+#define ADIS16204_DIAG_STAT_ALARM1        BIT(8) /* Alarm 1 status: 1 = alarm active, 0 = alarm inactive */
 #define ADIS16204_DIAG_STAT_SELFTEST_FAIL_BIT 5 /* Self-test diagnostic error flag: 1 = error condition,
 						0 = normal operation */
 #define ADIS16204_DIAG_STAT_SPI_FAIL_BIT      3 /* SPI communications failure */
@@ -50,11 +50,11 @@
 #define ADIS16204_DIAG_STAT_POWER_LOW_BIT     0 /* Power supply below 2.975 V */
 
 /* GLOB_CMD */
-#define ADIS16204_GLOB_CMD_SW_RESET	(1<<7)
-#define ADIS16204_GLOB_CMD_CLEAR_STAT	(1<<4)
-#define ADIS16204_GLOB_CMD_FACTORY_CAL	(1<<1)
+#define ADIS16204_GLOB_CMD_SW_RESET	BIT(7)
+#define ADIS16204_GLOB_CMD_CLEAR_STAT	BIT(4)
+#define ADIS16204_GLOB_CMD_FACTORY_CAL	BIT(1)
 
-#define ADIS16204_ERROR_ACTIVE          (1<<14)
+#define ADIS16204_ERROR_ACTIVE          BIT(14)
 
 enum adis16204_scan {
 	ADIS16204_SCAN_ACC_X,
diff --git a/drivers/staging/iio/accel/adis16204_core.c b/drivers/staging/iio/accel/adis16204_core.c
index 4c8acbc..ea0ac24 100644
--- a/drivers/staging/iio/accel/adis16204_core.c
+++ b/drivers/staging/iio/accel/adis16204_core.c
@@ -141,11 +141,13 @@ static const struct iio_chan_spec adis16204_channels[] = {
 	ADIS_AUX_ADC_CHAN(ADIS16204_AUX_ADC, ADIS16204_SCAN_AUX_ADC, 0, 12),
 	ADIS_TEMP_CHAN(ADIS16204_TEMP_OUT, ADIS16204_SCAN_TEMP, 0, 12),
 	ADIS_ACCEL_CHAN(X, ADIS16204_XACCL_OUT, ADIS16204_SCAN_ACC_X,
-		BIT(IIO_CHAN_INFO_CALIBBIAS) | BIT(IIO_CHAN_INFO_PEAK), 0, 14),
+			BIT(IIO_CHAN_INFO_CALIBBIAS) | BIT(IIO_CHAN_INFO_PEAK),
+			0, 14),
 	ADIS_ACCEL_CHAN(Y, ADIS16204_YACCL_OUT, ADIS16204_SCAN_ACC_Y,
-		BIT(IIO_CHAN_INFO_CALIBBIAS) | BIT(IIO_CHAN_INFO_PEAK), 0, 14),
+			BIT(IIO_CHAN_INFO_CALIBBIAS) | BIT(IIO_CHAN_INFO_PEAK),
+			0, 14),
 	ADIS_ACCEL_CHAN(ROOT_SUM_SQUARED_X_Y, ADIS16204_XY_RSS_OUT,
-		ADIS16204_SCAN_ACC_XY, BIT(IIO_CHAN_INFO_PEAK), 0, 14),
+			ADIS16204_SCAN_ACC_XY, BIT(IIO_CHAN_INFO_PEAK), 0, 14),
 	IIO_CHAN_SOFT_TIMESTAMP(5),
 };
 
diff --git a/drivers/staging/iio/accel/adis16209.h b/drivers/staging/iio/accel/adis16209.h
index ad3945a..813698d 100644
--- a/drivers/staging/iio/accel/adis16209.h
+++ b/drivers/staging/iio/accel/adis16209.h
@@ -60,21 +60,21 @@
 
 /* MSC_CTRL */
 /* Self-test at power-on: 1 = disabled, 0 = enabled */
-#define ADIS16209_MSC_CTRL_PWRUP_SELF_TEST	(1 << 10)
+#define ADIS16209_MSC_CTRL_PWRUP_SELF_TEST	BIT(10)
 /* Self-test enable */
-#define ADIS16209_MSC_CTRL_SELF_TEST_EN	        (1 << 8)
+#define ADIS16209_MSC_CTRL_SELF_TEST_EN	        BIT(8)
 /* Data-ready enable: 1 = enabled, 0 = disabled */
-#define ADIS16209_MSC_CTRL_DATA_RDY_EN	        (1 << 2)
+#define ADIS16209_MSC_CTRL_DATA_RDY_EN	        BIT(2)
 /* Data-ready polarity: 1 = active high, 0 = active low */
-#define ADIS16209_MSC_CTRL_ACTIVE_HIGH	        (1 << 1)
+#define ADIS16209_MSC_CTRL_ACTIVE_HIGH	        BIT(1)
 /* Data-ready line selection: 1 = DIO2, 0 = DIO1 */
-#define ADIS16209_MSC_CTRL_DATA_RDY_DIO2	(1 << 0)
+#define ADIS16209_MSC_CTRL_DATA_RDY_DIO2	BIT(0)
 
 /* DIAG_STAT */
 /* Alarm 2 status: 1 = alarm active, 0 = alarm inactive */
-#define ADIS16209_DIAG_STAT_ALARM2        (1<<9)
+#define ADIS16209_DIAG_STAT_ALARM2        BIT(9)
 /* Alarm 1 status: 1 = alarm active, 0 = alarm inactive */
-#define ADIS16209_DIAG_STAT_ALARM1        (1<<8)
+#define ADIS16209_DIAG_STAT_ALARM1        BIT(8)
 /* Self-test diagnostic error flag: 1 = error condition, 0 = normal operation */
 #define ADIS16209_DIAG_STAT_SELFTEST_FAIL_BIT	5
 /* SPI communications failure */
@@ -87,11 +87,11 @@
 #define ADIS16209_DIAG_STAT_POWER_LOW_BIT	0
 
 /* GLOB_CMD */
-#define ADIS16209_GLOB_CMD_SW_RESET	(1<<7)
-#define ADIS16209_GLOB_CMD_CLEAR_STAT	(1<<4)
-#define ADIS16209_GLOB_CMD_FACTORY_CAL	(1<<1)
+#define ADIS16209_GLOB_CMD_SW_RESET	BIT(7)
+#define ADIS16209_GLOB_CMD_CLEAR_STAT	BIT(4)
+#define ADIS16209_GLOB_CMD_FACTORY_CAL	BIT(1)
 
-#define ADIS16209_ERROR_ACTIVE          (1<<14)
+#define ADIS16209_ERROR_ACTIVE          BIT(14)
 
 #define ADIS16209_SCAN_SUPPLY	0
 #define ADIS16209_SCAN_ACC_X	1
diff --git a/drivers/staging/iio/accel/adis16209_core.c b/drivers/staging/iio/accel/adis16209_core.c
index b2c7aed..d1dc1a3 100644
--- a/drivers/staging/iio/accel/adis16209_core.c
+++ b/drivers/staging/iio/accel/adis16209_core.c
@@ -134,14 +134,14 @@ static const struct iio_chan_spec adis16209_channels[] = {
 	ADIS_SUPPLY_CHAN(ADIS16209_SUPPLY_OUT, ADIS16209_SCAN_SUPPLY, 0, 14),
 	ADIS_TEMP_CHAN(ADIS16209_TEMP_OUT, ADIS16209_SCAN_TEMP, 0, 12),
 	ADIS_ACCEL_CHAN(X, ADIS16209_XACCL_OUT, ADIS16209_SCAN_ACC_X,
-		BIT(IIO_CHAN_INFO_CALIBBIAS), 0, 14),
+			BIT(IIO_CHAN_INFO_CALIBBIAS), 0, 14),
 	ADIS_ACCEL_CHAN(Y, ADIS16209_YACCL_OUT, ADIS16209_SCAN_ACC_Y,
-		BIT(IIO_CHAN_INFO_CALIBBIAS), 0, 14),
+			BIT(IIO_CHAN_INFO_CALIBBIAS), 0, 14),
 	ADIS_AUX_ADC_CHAN(ADIS16209_AUX_ADC, ADIS16209_SCAN_AUX_ADC, 0, 12),
 	ADIS_INCLI_CHAN(X, ADIS16209_XINCL_OUT, ADIS16209_SCAN_INCLI_X,
-		0, 0, 14),
+			0, 0, 14),
 	ADIS_INCLI_CHAN(Y, ADIS16209_YINCL_OUT, ADIS16209_SCAN_INCLI_Y,
-		0, 0, 14),
+			0, 0, 14),
 	ADIS_ROT_CHAN(X, ADIS16209_ROT_OUT, ADIS16209_SCAN_ROT, 0, 0, 14),
 	IIO_CHAN_SOFT_TIMESTAMP(8)
 };
@@ -178,7 +178,6 @@ static const struct adis_data adis16209_data = {
 		BIT(ADIS16209_DIAG_STAT_POWER_LOW_BIT),
 };
 
-
 static int adis16209_probe(struct spi_device *spi)
 {
 	int ret;
diff --git a/drivers/staging/iio/accel/adis16220.h b/drivers/staging/iio/accel/adis16220.h
index a894ad7..eab8633 100644
--- a/drivers/staging/iio/accel/adis16220.h
+++ b/drivers/staging/iio/accel/adis16220.h
@@ -71,35 +71,35 @@
 #define ADIS16220_CAPTURE_SIZE  2048
 
 /* MSC_CTRL */
-#define ADIS16220_MSC_CTRL_SELF_TEST_EN	        (1 << 8)
-#define ADIS16220_MSC_CTRL_POWER_SUP_COM_AIN1	(1 << 1)
-#define ADIS16220_MSC_CTRL_POWER_SUP_COM_AIN2	(1 << 0)
+#define ADIS16220_MSC_CTRL_SELF_TEST_EN	        BIT(8)
+#define ADIS16220_MSC_CTRL_POWER_SUP_COM_AIN1	BIT(1)
+#define ADIS16220_MSC_CTRL_POWER_SUP_COM_AIN2	BIT(0)
 
 /* DIO_CTRL */
-#define ADIS16220_MSC_CTRL_DIO2_BUSY_IND     (3<<4)
-#define ADIS16220_MSC_CTRL_DIO1_BUSY_IND     (3<<2)
-#define ADIS16220_MSC_CTRL_DIO2_ACT_HIGH     (1<<1)
-#define ADIS16220_MSC_CTRL_DIO1_ACT_HIGH     (1<<0)
+#define ADIS16220_MSC_CTRL_DIO2_BUSY_IND     (BIT(5) | BIT(4))
+#define ADIS16220_MSC_CTRL_DIO1_BUSY_IND     (BIT(3) | BIT(2))
+#define ADIS16220_MSC_CTRL_DIO2_ACT_HIGH     BIT(1)
+#define ADIS16220_MSC_CTRL_DIO1_ACT_HIGH     BIT(0)
 
 /* DIAG_STAT */
 /* AIN2 sample > ALM_MAG2 */
-#define ADIS16220_DIAG_STAT_ALM_MAG2    (1<<14)
+#define ADIS16220_DIAG_STAT_ALM_MAG2    BIT(14)
 /* AIN1 sample > ALM_MAG1 */
-#define ADIS16220_DIAG_STAT_ALM_MAG1    (1<<13)
+#define ADIS16220_DIAG_STAT_ALM_MAG1    BIT(13)
 /* Acceleration sample > ALM_MAGA */
-#define ADIS16220_DIAG_STAT_ALM_MAGA    (1<<12)
+#define ADIS16220_DIAG_STAT_ALM_MAGA    BIT(12)
 /* Error condition programmed into ALM_MAGS[11:0] and ALM_CTRL[5:4] is true */
-#define ADIS16220_DIAG_STAT_ALM_MAGS    (1<<11)
+#define ADIS16220_DIAG_STAT_ALM_MAGS    BIT(11)
 /* |Peak value in AIN2 data capture| > ALM_MAG2 */
-#define ADIS16220_DIAG_STAT_PEAK_AIN2   (1<<10)
+#define ADIS16220_DIAG_STAT_PEAK_AIN2   BIT(10)
 /* |Peak value in AIN1 data capture| > ALM_MAG1 */
-#define ADIS16220_DIAG_STAT_PEAK_AIN1   (1<<9)
+#define ADIS16220_DIAG_STAT_PEAK_AIN1   BIT(9)
 /* |Peak value in acceleration data capture| > ALM_MAGA */
-#define ADIS16220_DIAG_STAT_PEAK_ACCEL  (1<<8)
+#define ADIS16220_DIAG_STAT_PEAK_ACCEL  BIT(8)
 /* Data ready, capture complete */
-#define ADIS16220_DIAG_STAT_DATA_RDY    (1<<7)
-#define ADIS16220_DIAG_STAT_FLASH_CHK	(1<<6)
-#define ADIS16220_DIAG_STAT_SELF_TEST	(1<<5)
+#define ADIS16220_DIAG_STAT_DATA_RDY    BIT(7)
+#define ADIS16220_DIAG_STAT_FLASH_CHK	BIT(6)
+#define ADIS16220_DIAG_STAT_SELF_TEST	BIT(5)
 /* Capture period violation/interruption */
 #define ADIS16220_DIAG_STAT_VIOLATION_BIT	4
 /* SPI communications failure */
@@ -112,9 +112,9 @@
 #define ADIS16220_DIAG_STAT_POWER_LOW_BIT	0
 
 /* GLOB_CMD */
-#define ADIS16220_GLOB_CMD_SW_RESET	(1<<7)
-#define ADIS16220_GLOB_CMD_SELF_TEST	(1<<2)
-#define ADIS16220_GLOB_CMD_PWR_DOWN	(1<<1)
+#define ADIS16220_GLOB_CMD_SW_RESET	BIT(7)
+#define ADIS16220_GLOB_CMD_SELF_TEST	BIT(2)
+#define ADIS16220_GLOB_CMD_PWR_DOWN	BIT(1)
 
 #define ADIS16220_MAX_TX 2048
 #define ADIS16220_MAX_RX 2048
diff --git a/drivers/staging/iio/accel/adis16220_core.c b/drivers/staging/iio/accel/adis16220_core.c
index d478f51..e46a91c 100644
--- a/drivers/staging/iio/accel/adis16220_core.c
+++ b/drivers/staging/iio/accel/adis16220_core.c
@@ -21,29 +21,28 @@
 #include "adis16220.h"
 
 static ssize_t adis16220_read_16bit(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
+				    struct device_attribute *attr,
+				    char *buf)
 {
 	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct adis16220_state *st = iio_priv(indio_dev);
 	ssize_t ret;
-	s16 val = 0;
+	u16 val;
 
 	/* Take the iio_dev status lock */
 	mutex_lock(&indio_dev->mlock);
-	ret = adis_read_reg_16(&st->adis, this_attr->address,
-					(u16 *)&val);
+	ret = adis_read_reg_16(&st->adis, this_attr->address, &val);
 	mutex_unlock(&indio_dev->mlock);
 	if (ret)
 		return ret;
-	return sprintf(buf, "%d\n", val);
+	return sprintf(buf, "%u\n", val);
 }
 
 static ssize_t adis16220_write_16bit(struct device *dev,
-		struct device_attribute *attr,
-		const char *buf,
-		size_t len)
+				     struct device_attribute *attr,
+				     const char *buf,
+				     size_t len)
 {
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
@@ -76,8 +75,8 @@ static int adis16220_capture(struct iio_dev *indio_dev)
 }
 
 static ssize_t adis16220_write_capture(struct device *dev,
-		struct device_attribute *attr,
-		const char *buf, size_t len)
+				       struct device_attribute *attr,
+				       const char *buf, size_t len)
 {
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	bool val;
@@ -96,10 +95,10 @@ static ssize_t adis16220_write_capture(struct device *dev,
 }
 
 static ssize_t adis16220_capture_buffer_read(struct iio_dev *indio_dev,
-					char *buf,
-					loff_t off,
-					size_t count,
-					int addr)
+					     char *buf,
+					     loff_t off,
+					     size_t count,
+					     int addr)
 {
 	struct adis16220_state *st = iio_priv(indio_dev);
 	struct spi_transfer xfers[] = {
@@ -131,15 +130,14 @@ static ssize_t adis16220_capture_buffer_read(struct iio_dev *indio_dev,
 
 	/* write the begin position of capture buffer */
 	ret = adis_write_reg_16(&st->adis,
-					ADIS16220_CAPT_PNTR,
-					off > 1);
+				ADIS16220_CAPT_PNTR,
+				off > 1);
 	if (ret)
 		return -EIO;
 
 	/* read count/2 values from capture buffer */
 	mutex_lock(&st->buf_lock);
 
-
 	for (i = 0; i < count; i += 2) {
 		st->tx[i] = ADIS_READ_REG(addr);
 		st->tx[i + 1] = 0;
@@ -148,7 +146,6 @@ static ssize_t adis16220_capture_buffer_read(struct iio_dev *indio_dev,
 
 	ret = spi_sync_transfer(st->adis.spi, xfers, ARRAY_SIZE(xfers));
 	if (ret) {
-
 		mutex_unlock(&st->buf_lock);
 		return -EIO;
 	}
@@ -182,9 +179,9 @@ static struct bin_attribute accel_bin = {
 };
 
 static ssize_t adis16220_adc1_bin_read(struct file *filp, struct kobject *kobj,
-				struct bin_attribute *attr,
-				char *buf, loff_t off,
-				size_t count)
+				       struct bin_attribute *attr,
+				       char *buf, loff_t off,
+				       size_t count)
 {
 	struct iio_dev *indio_dev = dev_to_iio_dev(kobj_to_dev(kobj));
 
@@ -203,9 +200,9 @@ static struct bin_attribute adc1_bin = {
 };
 
 static ssize_t adis16220_adc2_bin_read(struct file *filp, struct kobject *kobj,
-				struct bin_attribute *attr,
-				char *buf, loff_t off,
-				size_t count)
+				       struct bin_attribute *attr,
+				       char *buf, loff_t off,
+				       size_t count)
 {
 	struct iio_dev *indio_dev = dev_to_iio_dev(kobj_to_dev(kobj));
 
@@ -214,7 +211,6 @@ static ssize_t adis16220_adc2_bin_read(struct file *filp, struct kobject *kobj,
 					ADIS16220_CAPT_BUF2);
 }
 
-
 static struct bin_attribute adc2_bin = {
 	.attr = {
 		.name = "in1_bin",
diff --git a/drivers/staging/iio/accel/adis16240.h b/drivers/staging/iio/accel/adis16240.h
index d442d49..66b5ad2 100644
--- a/drivers/staging/iio/accel/adis16240.h
+++ b/drivers/staging/iio/accel/adis16240.h
@@ -74,31 +74,31 @@
 
 /* MSC_CTRL */
 /* Enables sum-of-squares output (XYZPEAK_OUT) */
-#define ADIS16240_MSC_CTRL_XYZPEAK_OUT_EN	(1 << 15)
+#define ADIS16240_MSC_CTRL_XYZPEAK_OUT_EN	BIT(15)
 /* Enables peak tracking output (XPEAK_OUT, YPEAK_OUT, and ZPEAK_OUT) */
-#define ADIS16240_MSC_CTRL_X_Y_ZPEAK_OUT_EN	(1 << 14)
+#define ADIS16240_MSC_CTRL_X_Y_ZPEAK_OUT_EN	BIT(14)
 /* Self-test enable: 1 = apply electrostatic force, 0 = disabled */
-#define ADIS16240_MSC_CTRL_SELF_TEST_EN	        (1 << 8)
+#define ADIS16240_MSC_CTRL_SELF_TEST_EN	        BIT(8)
 /* Data-ready enable: 1 = enabled, 0 = disabled */
-#define ADIS16240_MSC_CTRL_DATA_RDY_EN	        (1 << 2)
+#define ADIS16240_MSC_CTRL_DATA_RDY_EN	        BIT(2)
 /* Data-ready polarity: 1 = active high, 0 = active low */
-#define ADIS16240_MSC_CTRL_ACTIVE_HIGH	        (1 << 1)
+#define ADIS16240_MSC_CTRL_ACTIVE_HIGH	        BIT(1)
 /* Data-ready line selection: 1 = DIO2, 0 = DIO1 */
-#define ADIS16240_MSC_CTRL_DATA_RDY_DIO2	(1 << 0)
+#define ADIS16240_MSC_CTRL_DATA_RDY_DIO2	BIT(0)
 
 /* DIAG_STAT */
 /* Alarm 2 status: 1 = alarm active, 0 = alarm inactive */
-#define ADIS16240_DIAG_STAT_ALARM2      (1<<9)
+#define ADIS16240_DIAG_STAT_ALARM2      BIT(9)
 /* Alarm 1 status: 1 = alarm active, 0 = alarm inactive */
-#define ADIS16240_DIAG_STAT_ALARM1      (1<<8)
+#define ADIS16240_DIAG_STAT_ALARM1      BIT(8)
 /* Capture buffer full: 1 = capture buffer is full */
-#define ADIS16240_DIAG_STAT_CPT_BUF_FUL (1<<7)
+#define ADIS16240_DIAG_STAT_CPT_BUF_FUL BIT(7)
 /* Flash test, checksum flag: 1 = mismatch, 0 = match */
-#define ADIS16240_DIAG_STAT_CHKSUM      (1<<6)
+#define ADIS16240_DIAG_STAT_CHKSUM      BIT(6)
 /* Power-on, self-test flag: 1 = failure, 0 = pass */
 #define ADIS16240_DIAG_STAT_PWRON_FAIL_BIT  5
 /* Power-on self-test: 1 = in-progress, 0 = complete */
-#define ADIS16240_DIAG_STAT_PWRON_BUSY  (1<<4)
+#define ADIS16240_DIAG_STAT_PWRON_BUSY  BIT(4)
 /* SPI communications failure */
 #define ADIS16240_DIAG_STAT_SPI_FAIL_BIT	3
 /* Flash update failure */
@@ -109,11 +109,11 @@
 #define ADIS16240_DIAG_STAT_POWER_LOW_BIT	0
 
 /* GLOB_CMD */
-#define ADIS16240_GLOB_CMD_RESUME	(1<<8)
-#define ADIS16240_GLOB_CMD_SW_RESET	(1<<7)
-#define ADIS16240_GLOB_CMD_STANDBY	(1<<2)
+#define ADIS16240_GLOB_CMD_RESUME	BIT(8)
+#define ADIS16240_GLOB_CMD_SW_RESET	BIT(7)
+#define ADIS16240_GLOB_CMD_STANDBY	BIT(2)
 
-#define ADIS16240_ERROR_ACTIVE          (1<<14)
+#define ADIS16240_ERROR_ACTIVE          BIT(14)
 
 /* At the moment triggers are only used for ring buffer
  * filling. This may change!
diff --git a/drivers/staging/iio/accel/adis16240_core.c b/drivers/staging/iio/accel/adis16240_core.c
index 3f46086..cb074e8 100644
--- a/drivers/staging/iio/accel/adis16240_core.c
+++ b/drivers/staging/iio/accel/adis16240_core.c
@@ -27,9 +27,9 @@
 #include "adis16240.h"
 
 static ssize_t adis16240_spi_read_signed(struct device *dev,
-		struct device_attribute *attr,
-		char *buf,
-		unsigned bits)
+					 struct device_attribute *attr,
+					 char *buf,
+					 unsigned bits)
 {
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct adis *st = iio_priv(indio_dev);
@@ -39,20 +39,20 @@ static ssize_t adis16240_spi_read_signed(struct device *dev,
 	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
 
 	ret = adis_read_reg_16(st,
-					this_attr->address, (u16 *)&val);
+			       this_attr->address, (u16 *)&val);
 	if (ret)
 		return ret;
 
 	if (val & ADIS16240_ERROR_ACTIVE)
 		adis_check_status(st);
 
-	val = ((s16)(val << shift) >> shift);
+	val = (s16)(val << shift) >> shift;
 	return sprintf(buf, "%d\n", val);
 }
 
 static ssize_t adis16240_read_12bit_signed(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
+					   struct device_attribute *attr,
+					   char *buf)
 {
 	ssize_t ret;
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
@@ -176,11 +176,14 @@ static const struct iio_chan_spec adis16240_channels[] = {
 	ADIS_SUPPLY_CHAN(ADIS16240_SUPPLY_OUT, ADIS16240_SCAN_SUPPLY, 0, 10),
 	ADIS_AUX_ADC_CHAN(ADIS16240_AUX_ADC, ADIS16240_SCAN_AUX_ADC, 0, 10),
 	ADIS_ACCEL_CHAN(X, ADIS16240_XACCL_OUT, ADIS16240_SCAN_ACC_X,
-		BIT(IIO_CHAN_INFO_CALIBBIAS) | BIT(IIO_CHAN_INFO_PEAK), 0, 10),
+			BIT(IIO_CHAN_INFO_CALIBBIAS) | BIT(IIO_CHAN_INFO_PEAK),
+			0, 10),
 	ADIS_ACCEL_CHAN(Y, ADIS16240_YACCL_OUT, ADIS16240_SCAN_ACC_Y,
-		BIT(IIO_CHAN_INFO_CALIBBIAS) | BIT(IIO_CHAN_INFO_PEAK), 0, 10),
+			BIT(IIO_CHAN_INFO_CALIBBIAS) | BIT(IIO_CHAN_INFO_PEAK),
+			0, 10),
 	ADIS_ACCEL_CHAN(Z, ADIS16240_ZACCL_OUT, ADIS16240_SCAN_ACC_Z,
-		BIT(IIO_CHAN_INFO_CALIBBIAS) | BIT(IIO_CHAN_INFO_PEAK), 0, 10),
+			BIT(IIO_CHAN_INFO_CALIBBIAS) | BIT(IIO_CHAN_INFO_PEAK),
+			0, 10),
 	ADIS_TEMP_CHAN(ADIS16240_TEMP_OUT, ADIS16240_SCAN_TEMP, 0, 10),
 	IIO_CHAN_SOFT_TIMESTAMP(6)
 };
diff --git a/drivers/staging/iio/accel/lis3l02dq.h b/drivers/staging/iio/accel/lis3l02dq.h
index 0a8ea82..3f24c62 100644
--- a/drivers/staging/iio/accel/lis3l02dq.h
+++ b/drivers/staging/iio/accel/lis3l02dq.h
@@ -194,6 +194,7 @@ irqreturn_t lis3l02dq_data_rdy_trig_poll(int irq, void *private);
 static inline void lis3l02dq_remove_trigger(struct iio_dev *indio_dev)
 {
 }
+
 static inline int lis3l02dq_probe_trigger(struct iio_dev *indio_dev)
 {
 	return 0;
@@ -203,6 +204,7 @@ static int lis3l02dq_configure_buffer(struct iio_dev *indio_dev)
 {
 	return 0;
 }
+
 static inline void lis3l02dq_unconfigure_buffer(struct iio_dev *indio_dev)
 {
 }
diff --git a/drivers/staging/iio/accel/lis3l02dq_core.c b/drivers/staging/iio/accel/lis3l02dq_core.c
index b78c9c5..ebcab56 100644
--- a/drivers/staging/iio/accel/lis3l02dq_core.c
+++ b/drivers/staging/iio/accel/lis3l02dq_core.c
@@ -558,13 +558,11 @@ static const struct iio_chan_spec lis3l02dq_channels[] = {
 	IIO_CHAN_SOFT_TIMESTAMP(3)
 };
 
-
 static int lis3l02dq_read_event_config(struct iio_dev *indio_dev,
 				       const struct iio_chan_spec *chan,
 				       enum iio_event_type type,
 				       enum iio_event_direction dir)
 {
-
 	u8 val;
 	int ret;
 	u8 mask = (1 << (chan->channel2*2 + (dir == IIO_EV_DIR_RISING)));
@@ -656,8 +654,8 @@ static int lis3l02dq_write_event_config(struct iio_dev *indio_dev,
 			(control | LIS3L02DQ_REG_CTRL_2_ENABLE_INTERRUPT) :
 			(control & ~LIS3L02DQ_REG_CTRL_2_ENABLE_INTERRUPT);
 		ret = lis3l02dq_spi_write_reg_8(indio_dev,
-					       LIS3L02DQ_REG_CTRL_2_ADDR,
-					       control);
+						LIS3L02DQ_REG_CTRL_2_ADDR,
+						control);
 		if (ret)
 			goto error_ret;
 	}
diff --git a/drivers/staging/iio/accel/lis3l02dq_ring.c b/drivers/staging/iio/accel/lis3l02dq_ring.c
index 1fd9009..b892f2c 100644
--- a/drivers/staging/iio/accel/lis3l02dq_ring.c
+++ b/drivers/staging/iio/accel/lis3l02dq_ring.c
@@ -110,7 +110,7 @@ static int lis3l02dq_read_all(struct iio_dev *indio_dev, u8 *rx_array)
 }
 
 static int lis3l02dq_get_buffer_element(struct iio_dev *indio_dev,
-				u8 *buf)
+					u8 *buf)
 {
 	int ret, i;
 	u8 *rx_array;
@@ -118,8 +118,8 @@ static int lis3l02dq_get_buffer_element(struct iio_dev *indio_dev,
 	int scan_count = bitmap_weight(indio_dev->active_scan_mask,
 				       indio_dev->masklength);
 
-	rx_array = kzalloc(4 * scan_count, GFP_KERNEL);
-	if (rx_array == NULL)
+	rx_array = kcalloc(4, scan_count, GFP_KERNEL);
+	if (!rx_array)
 		return -ENOMEM;
 	ret = lis3l02dq_read_all(indio_dev, rx_array);
 	if (ret < 0) {
@@ -142,7 +142,7 @@ static irqreturn_t lis3l02dq_trigger_handler(int irq, void *p)
 	char *data;
 
 	data = kmalloc(indio_dev->scan_bytes, GFP_KERNEL);
-	if (data == NULL)
+	if (!data)
 		goto done;
 
 	if (!bitmap_empty(indio_dev->active_scan_mask, indio_dev->masklength))
@@ -330,19 +330,21 @@ static int lis3l02dq_buffer_postenable(struct iio_dev *indio_dev)
 	if (test_bit(0, indio_dev->active_scan_mask)) {
 		t |= LIS3L02DQ_REG_CTRL_1_AXES_X_ENABLE;
 		oneenabled = true;
-	} else
+	} else {
 		t &= ~LIS3L02DQ_REG_CTRL_1_AXES_X_ENABLE;
+	}
 	if (test_bit(1, indio_dev->active_scan_mask)) {
 		t |= LIS3L02DQ_REG_CTRL_1_AXES_Y_ENABLE;
 		oneenabled = true;
-	} else
+	} else {
 		t &= ~LIS3L02DQ_REG_CTRL_1_AXES_Y_ENABLE;
+	}
 	if (test_bit(2, indio_dev->active_scan_mask)) {
 		t |= LIS3L02DQ_REG_CTRL_1_AXES_Z_ENABLE;
 		oneenabled = true;
-	} else
+	} else {
 		t &= ~LIS3L02DQ_REG_CTRL_1_AXES_Z_ENABLE;
-
+	}
 	if (!oneenabled) /* what happens in this case is unknown */
 		return -EINVAL;
 	ret = lis3l02dq_spi_write_reg_8(indio_dev,
@@ -410,7 +412,7 @@ int lis3l02dq_configure_buffer(struct iio_dev *indio_dev)
 						 "lis3l02dq_consumer%d",
 						 indio_dev->id);
 
-	if (indio_dev->pollfunc == NULL) {
+	if (!indio_dev->pollfunc) {
 		ret = -ENOMEM;
 		goto error_iio_sw_rb_free;
 	}
diff --git a/drivers/staging/iio/accel/sca3000.h b/drivers/staging/iio/accel/sca3000.h
index b284e5a..9c8a958 100644
--- a/drivers/staging/iio/accel/sca3000.h
+++ b/drivers/staging/iio/accel/sca3000.h
@@ -38,6 +38,9 @@
  * Can probably alleviate this by reading the interrupt register on start, but
  * that is really just brushing the problem under the carpet.
  */
+#ifndef _SCA3000
+#define _SCA3000
+
 #define SCA3000_WRITE_REG(a) (((a) << 2) | 0x02)
 #define SCA3000_READ_REG(a) ((a) << 2)
 
@@ -272,4 +275,4 @@ static inline void sca3000_ring_int_process(u8 val, void *ring)
 }
 
 #endif
-
+#endif /* _SCA3000 */
diff --git a/drivers/staging/iio/accel/sca3000_core.c b/drivers/staging/iio/accel/sca3000_core.c
index 31fb218..b614f27 100644
--- a/drivers/staging/iio/accel/sca3000_core.c
+++ b/drivers/staging/iio/accel/sca3000_core.c
@@ -870,7 +870,7 @@ static ssize_t sca3000_query_free_fall_mode(struct device *dev,
 					    struct device_attribute *attr,
 					    char *buf)
 {
-	int ret, len;
+	int ret;
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct sca3000_state *st = iio_priv(indio_dev);
 	int val;
@@ -881,9 +881,7 @@ static ssize_t sca3000_query_free_fall_mode(struct device *dev,
 	mutex_unlock(&st->lock);
 	if (ret < 0)
 		return ret;
-	len = sprintf(buf, "%d\n",
-		      !!(val & SCA3000_FREE_FALL_DETECT));
-	return len;
+	return sprintf(buf, "%d\n", !!(val & SCA3000_FREE_FALL_DETECT));
 }
 
 /**
diff --git a/drivers/staging/iio/accel/sca3000_ring.c b/drivers/staging/iio/accel/sca3000_ring.c
index f76a268..8589ead 100644
--- a/drivers/staging/iio/accel/sca3000_ring.c
+++ b/drivers/staging/iio/accel/sca3000_ring.c
@@ -129,9 +129,9 @@ error_ret:
 	return ret ? ret : num_read;
 }
 
-static bool sca3000_ring_buf_data_available(struct iio_buffer *r)
+static size_t sca3000_ring_buf_data_available(struct iio_buffer *r)
 {
-	return r->stufftoread;
+	return r->stufftoread ? r->watermark : 0;
 }
 
 /**
diff --git a/drivers/staging/iio/adc/ad7192.c b/drivers/staging/iio/adc/ad7192.c
index 6f8ce6c..fe56fb6 100644
--- a/drivers/staging/iio/adc/ad7192.c
+++ b/drivers/staging/iio/adc/ad7192.c
@@ -41,32 +41,32 @@
 				   * (RW, 16-bit (AD7792)/24-bit (AD7192)) */
 
 /* Communications Register Bit Designations (AD7192_REG_COMM) */
-#define AD7192_COMM_WEN		(1 << 7) /* Write Enable */
-#define AD7192_COMM_WRITE	(0 << 6) /* Write Operation */
-#define AD7192_COMM_READ	(1 << 6) /* Read Operation */
+#define AD7192_COMM_WEN		BIT(7) /* Write Enable */
+#define AD7192_COMM_WRITE	0 /* Write Operation */
+#define AD7192_COMM_READ	BIT(6) /* Read Operation */
 #define AD7192_COMM_ADDR(x)	(((x) & 0x7) << 3) /* Register Address */
-#define AD7192_COMM_CREAD	(1 << 2) /* Continuous Read of Data Register */
+#define AD7192_COMM_CREAD	BIT(2) /* Continuous Read of Data Register */
 
 /* Status Register Bit Designations (AD7192_REG_STAT) */
-#define AD7192_STAT_RDY		(1 << 7) /* Ready */
-#define AD7192_STAT_ERR		(1 << 6) /* Error (Overrange, Underrange) */
-#define AD7192_STAT_NOREF	(1 << 5) /* Error no external reference */
-#define AD7192_STAT_PARITY	(1 << 4) /* Parity */
-#define AD7192_STAT_CH3		(1 << 2) /* Channel 3 */
-#define AD7192_STAT_CH2		(1 << 1) /* Channel 2 */
-#define AD7192_STAT_CH1		(1 << 0) /* Channel 1 */
+#define AD7192_STAT_RDY		BIT(7) /* Ready */
+#define AD7192_STAT_ERR		BIT(6) /* Error (Overrange, Underrange) */
+#define AD7192_STAT_NOREF	BIT(5) /* Error no external reference */
+#define AD7192_STAT_PARITY	BIT(4) /* Parity */
+#define AD7192_STAT_CH3		BIT(2) /* Channel 3 */
+#define AD7192_STAT_CH2		BIT(1) /* Channel 2 */
+#define AD7192_STAT_CH1		BIT(0) /* Channel 1 */
 
 /* Mode Register Bit Designations (AD7192_REG_MODE) */
 #define AD7192_MODE_SEL(x)	(((x) & 0x7) << 21) /* Operation Mode Select */
 #define AD7192_MODE_SEL_MASK	(0x7 << 21) /* Operation Mode Select Mask */
-#define AD7192_MODE_DAT_STA	(1 << 20) /* Status Register transmission */
+#define AD7192_MODE_DAT_STA	BIT(20) /* Status Register transmission */
 #define AD7192_MODE_CLKSRC(x)	(((x) & 0x3) << 18) /* Clock Source Select */
-#define AD7192_MODE_SINC3	(1 << 15) /* SINC3 Filter Select */
-#define AD7192_MODE_ACX		(1 << 14) /* AC excitation enable(AD7195 only)*/
-#define AD7192_MODE_ENPAR	(1 << 13) /* Parity Enable */
-#define AD7192_MODE_CLKDIV	(1 << 12) /* Clock divide by 2 (AD7190/2 only)*/
-#define AD7192_MODE_SCYCLE	(1 << 11) /* Single cycle conversion */
-#define AD7192_MODE_REJ60	(1 << 10) /* 50/60Hz notch filter */
+#define AD7192_MODE_SINC3	BIT(15) /* SINC3 Filter Select */
+#define AD7192_MODE_ACX		BIT(14) /* AC excitation enable(AD7195 only)*/
+#define AD7192_MODE_ENPAR	BIT(13) /* Parity Enable */
+#define AD7192_MODE_CLKDIV	BIT(12) /* Clock divide by 2 (AD7190/2 only)*/
+#define AD7192_MODE_SCYCLE	BIT(11) /* Single cycle conversion */
+#define AD7192_MODE_REJ60	BIT(10) /* 50/60Hz notch filter */
 #define AD7192_MODE_RATE(x)	((x) & 0x3FF) /* Filter Update Rate Select */
 
 /* Mode Register: AD7192_MODE_SEL options */
@@ -91,14 +91,14 @@
 
 /* Configuration Register Bit Designations (AD7192_REG_CONF) */
 
-#define AD7192_CONF_CHOP	(1 << 23) /* CHOP enable */
-#define AD7192_CONF_REFSEL	(1 << 20) /* REFIN1/REFIN2 Reference Select */
+#define AD7192_CONF_CHOP	BIT(23) /* CHOP enable */
+#define AD7192_CONF_REFSEL	BIT(20) /* REFIN1/REFIN2 Reference Select */
 #define AD7192_CONF_CHAN(x)	(((1 << (x)) & 0xFF) << 8) /* Channel select */
 #define AD7192_CONF_CHAN_MASK	(0xFF << 8) /* Channel select mask */
-#define AD7192_CONF_BURN	(1 << 7) /* Burnout current enable */
-#define AD7192_CONF_REFDET	(1 << 6) /* Reference detect enable */
-#define AD7192_CONF_BUF		(1 << 4) /* Buffered Mode Enable */
-#define AD7192_CONF_UNIPOLAR	(1 << 3) /* Unipolar/Bipolar Enable */
+#define AD7192_CONF_BURN	BIT(7) /* Burnout current enable */
+#define AD7192_CONF_REFDET	BIT(6) /* Reference detect enable */
+#define AD7192_CONF_BUF		BIT(4) /* Buffered Mode Enable */
+#define AD7192_CONF_UNIPOLAR	BIT(3) /* Unipolar/Bipolar Enable */
 #define AD7192_CONF_GAIN(x)	((x) & 0x7) /* Gain Select */
 
 #define AD7192_CH_AIN1P_AIN2M	0 /* AIN1(+) - AIN2(-) */
@@ -117,13 +117,13 @@
 #define AD7192_ID_MASK		0x0F
 
 /* GPOCON Register Bit Designations (AD7192_REG_GPOCON) */
-#define AD7192_GPOCON_BPDSW	(1 << 6) /* Bridge power-down switch enable */
-#define AD7192_GPOCON_GP32EN	(1 << 5) /* Digital Output P3 and P2 enable */
-#define AD7192_GPOCON_GP10EN	(1 << 4) /* Digital Output P1 and P0 enable */
-#define AD7192_GPOCON_P3DAT	(1 << 3) /* P3 state */
-#define AD7192_GPOCON_P2DAT	(1 << 2) /* P2 state */
-#define AD7192_GPOCON_P1DAT	(1 << 1) /* P1 state */
-#define AD7192_GPOCON_P0DAT	(1 << 0) /* P0 state */
+#define AD7192_GPOCON_BPDSW	BIT(6) /* Bridge power-down switch enable */
+#define AD7192_GPOCON_GP32EN	BIT(5) /* Digital Output P3 and P2 enable */
+#define AD7192_GPOCON_GP10EN	BIT(4) /* Digital Output P1 and P0 enable */
+#define AD7192_GPOCON_P3DAT	BIT(3) /* P3 state */
+#define AD7192_GPOCON_P2DAT	BIT(2) /* P2 state */
+#define AD7192_GPOCON_P1DAT	BIT(1) /* P1 state */
+#define AD7192_GPOCON_P0DAT	BIT(0) /* P0 state */
 
 #define AD7192_INT_FREQ_MHz	4915200
 
diff --git a/drivers/staging/iio/adc/ad7280a.c b/drivers/staging/iio/adc/ad7280a.c
index 4d48707..d98e229 100644
--- a/drivers/staging/iio/adc/ad7280a.c
+++ b/drivers/staging/iio/adc/ad7280a.c
@@ -55,37 +55,37 @@
 #define AD7280A_CNVST_CONTROL		0x1D /* D7 to D0, Read/write */
 
 /* Bits and Masks */
-#define AD7280A_CTRL_HB_CONV_INPUT_ALL			(0 << 6)
-#define AD7280A_CTRL_HB_CONV_INPUT_6CELL_AUX1_3_4	(1 << 6)
-#define AD7280A_CTRL_HB_CONV_INPUT_6CELL		(2 << 6)
-#define AD7280A_CTRL_HB_CONV_INPUT_SELF_TEST		(3 << 6)
-#define AD7280A_CTRL_HB_CONV_RES_READ_ALL		(0 << 4)
-#define AD7280A_CTRL_HB_CONV_RES_READ_6CELL_AUX1_3_4	(1 << 4)
-#define AD7280A_CTRL_HB_CONV_RES_READ_6CELL		(2 << 4)
-#define AD7280A_CTRL_HB_CONV_RES_READ_NO		(3 << 4)
-#define AD7280A_CTRL_HB_CONV_START_CNVST		(0 << 3)
-#define AD7280A_CTRL_HB_CONV_START_CS			(1 << 3)
-#define AD7280A_CTRL_HB_CONV_AVG_DIS			(0 << 1)
-#define AD7280A_CTRL_HB_CONV_AVG_2			(1 << 1)
-#define AD7280A_CTRL_HB_CONV_AVG_4			(2 << 1)
-#define AD7280A_CTRL_HB_CONV_AVG_8			(3 << 1)
+#define AD7280A_CTRL_HB_CONV_INPUT_ALL			0
+#define AD7280A_CTRL_HB_CONV_INPUT_6CELL_AUX1_3_4	BIT(6)
+#define AD7280A_CTRL_HB_CONV_INPUT_6CELL		BIT(7)
+#define AD7280A_CTRL_HB_CONV_INPUT_SELF_TEST		(BIT(7) | BIT(6))
+#define AD7280A_CTRL_HB_CONV_RES_READ_ALL		0
+#define AD7280A_CTRL_HB_CONV_RES_READ_6CELL_AUX1_3_4	BIT(4)
+#define AD7280A_CTRL_HB_CONV_RES_READ_6CELL		BIT(5)
+#define AD7280A_CTRL_HB_CONV_RES_READ_NO		(BIT(5) | BIT(4))
+#define AD7280A_CTRL_HB_CONV_START_CNVST		0
+#define AD7280A_CTRL_HB_CONV_START_CS			BIT(3)
+#define AD7280A_CTRL_HB_CONV_AVG_DIS			0
+#define AD7280A_CTRL_HB_CONV_AVG_2			BIT(1)
+#define AD7280A_CTRL_HB_CONV_AVG_4			BIT(2)
+#define AD7280A_CTRL_HB_CONV_AVG_8			(BIT(2) | BIT(1))
 #define AD7280A_CTRL_HB_CONV_AVG(x)			((x) << 1)
-#define AD7280A_CTRL_HB_PWRDN_SW			(1 << 0)
+#define AD7280A_CTRL_HB_PWRDN_SW			BIT(0)
 
-#define AD7280A_CTRL_LB_SWRST				(1 << 7)
-#define AD7280A_CTRL_LB_ACQ_TIME_400ns			(0 << 5)
-#define AD7280A_CTRL_LB_ACQ_TIME_800ns			(1 << 5)
-#define AD7280A_CTRL_LB_ACQ_TIME_1200ns			(2 << 5)
-#define AD7280A_CTRL_LB_ACQ_TIME_1600ns			(3 << 5)
+#define AD7280A_CTRL_LB_SWRST				BIT(7)
+#define AD7280A_CTRL_LB_ACQ_TIME_400ns			0
+#define AD7280A_CTRL_LB_ACQ_TIME_800ns			BIT(5)
+#define AD7280A_CTRL_LB_ACQ_TIME_1200ns			BIT(6)
+#define AD7280A_CTRL_LB_ACQ_TIME_1600ns			(BIT(6) | BIT(5))
 #define AD7280A_CTRL_LB_ACQ_TIME(x)			((x) << 5)
-#define AD7280A_CTRL_LB_MUST_SET			(1 << 4)
-#define AD7280A_CTRL_LB_THERMISTOR_EN			(1 << 3)
-#define AD7280A_CTRL_LB_LOCK_DEV_ADDR			(1 << 2)
-#define AD7280A_CTRL_LB_INC_DEV_ADDR			(1 << 1)
-#define AD7280A_CTRL_LB_DAISY_CHAIN_RB_EN		(1 << 0)
+#define AD7280A_CTRL_LB_MUST_SET			BIT(4)
+#define AD7280A_CTRL_LB_THERMISTOR_EN			BIT(3)
+#define AD7280A_CTRL_LB_LOCK_DEV_ADDR			BIT(2)
+#define AD7280A_CTRL_LB_INC_DEV_ADDR			BIT(1)
+#define AD7280A_CTRL_LB_DAISY_CHAIN_RB_EN		BIT(0)
 
-#define AD7280A_ALERT_GEN_STATIC_HIGH			(1 << 6)
-#define AD7280A_ALERT_RELAY_SIG_CHAIN_DOWN		(3 << 6)
+#define AD7280A_ALERT_GEN_STATIC_HIGH			BIT(6)
+#define AD7280A_ALERT_RELAY_SIG_CHAIN_DOWN		(BIT(7) | BIT(6))
 
 #define AD7280A_ALL_CELLS				(0xAD << 16)
 
@@ -547,8 +547,9 @@ static int ad7280_attr_init(struct ad7280_state *st)
 {
 	int dev, ch, cnt;
 
-	st->iio_attr = kzalloc(sizeof(*st->iio_attr) * (st->slave_num + 1) *
-				AD7280A_CELLS_PER_DEV * 2, GFP_KERNEL);
+	st->iio_attr = kcalloc(2, sizeof(*st->iio_attr) *
+			       (st->slave_num + 1) * AD7280A_CELLS_PER_DEV,
+			       GFP_KERNEL);
 	if (st->iio_attr == NULL)
 		return -ENOMEM;
 
diff --git a/drivers/staging/iio/adc/ad7280a.h b/drivers/staging/iio/adc/ad7280a.h
index 20400b0..732347a 100644
--- a/drivers/staging/iio/adc/ad7280a.h
+++ b/drivers/staging/iio/adc/ad7280a.h
@@ -23,10 +23,10 @@
 #define AD7280A_CONV_AVG_4			2
 #define AD7280A_CONV_AVG_8			3
 
-#define AD7280A_ALERT_REMOVE_VIN5		(1 << 2)
-#define AD7280A_ALERT_REMOVE_VIN4_VIN5		(2 << 2)
-#define AD7280A_ALERT_REMOVE_AUX5		(1 << 0)
-#define AD7280A_ALERT_REMOVE_AUX4_AUX5		(2 << 0)
+#define AD7280A_ALERT_REMOVE_VIN5		BIT(2)
+#define AD7280A_ALERT_REMOVE_VIN4_VIN5		BIT(3)
+#define AD7280A_ALERT_REMOVE_AUX5		BIT(0)
+#define AD7280A_ALERT_REMOVE_AUX4_AUX5		BIT(1)
 
 struct ad7280_platform_data {
 	unsigned acquisition_time;
diff --git a/drivers/staging/iio/adc/ad7606_ring.c b/drivers/staging/iio/adc/ad7606_ring.c
index 3bf174c..a6f8eb1 100644
--- a/drivers/staging/iio/adc/ad7606_ring.c
+++ b/drivers/staging/iio/adc/ad7606_ring.c
@@ -50,7 +50,7 @@ static void ad7606_poll_bh_to_ring(struct work_struct *work_s)
 	int ret;
 
 	buf = kzalloc(indio_dev->scan_bytes, GFP_KERNEL);
-	if (buf == NULL)
+	if (!buf)
 		return;
 
 	if (gpio_is_valid(st->pdata->gpio_frstdata)) {
diff --git a/drivers/staging/iio/adc/ad7780.c b/drivers/staging/iio/adc/ad7780.c
index 273add3..9f03fe3 100644
--- a/drivers/staging/iio/adc/ad7780.c
+++ b/drivers/staging/iio/adc/ad7780.c
@@ -24,14 +24,14 @@
 
 #include "ad7780.h"
 
-#define AD7780_RDY	(1 << 7)
-#define AD7780_FILTER	(1 << 6)
-#define AD7780_ERR	(1 << 5)
-#define AD7780_ID1	(1 << 4)
-#define AD7780_ID0	(1 << 3)
-#define AD7780_GAIN	(1 << 2)
-#define AD7780_PAT1	(1 << 1)
-#define AD7780_PAT0	(1 << 0)
+#define AD7780_RDY	BIT(7)
+#define AD7780_FILTER	BIT(6)
+#define AD7780_ERR	BIT(5)
+#define AD7780_ID1	BIT(4)
+#define AD7780_ID0	BIT(3)
+#define AD7780_GAIN	BIT(2)
+#define AD7780_PAT1	BIT(1)
+#define AD7780_PAT0	BIT(0)
 
 struct ad7780_chip_info {
 	struct iio_chan_spec	channel;
@@ -169,7 +169,7 @@ static int ad7780_probe(struct spi_device *spi)
 	int ret, voltage_uv = 0;
 
 	indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
-	if (indio_dev == NULL)
+	if (!indio_dev)
 		return -ENOMEM;
 
 	st = iio_priv(indio_dev);
diff --git a/drivers/staging/iio/adc/mxs-lradc.c b/drivers/staging/iio/adc/mxs-lradc.c
index d9d6fad..d7c5223 100644
--- a/drivers/staging/iio/adc/mxs-lradc.c
+++ b/drivers/staging/iio/adc/mxs-lradc.c
@@ -214,11 +214,17 @@ struct mxs_lradc {
 	unsigned long		is_divided;
 
 	/*
-	 * Touchscreen LRADC channels receives a private slot in the CTRL4
-	 * register, the slot #7. Therefore only 7 slots instead of 8 in the
-	 * CTRL4 register can be mapped to LRADC channels when using the
-	 * touchscreen.
-	 *
+	 * When the touchscreen is enabled, we give it two private virtual
+	 * channels: #6 and #7. This means that only 6 virtual channels (instead
+	 * of 8) will be available for buffered capture.
+	 */
+#define TOUCHSCREEN_VCHANNEL1		7
+#define TOUCHSCREEN_VCHANNEL2		6
+#define BUFFER_VCHANS_LIMITED		0x3f
+#define BUFFER_VCHANS_ALL		0xff
+	u8			buffer_vchans;
+
+	/*
 	 * Furthermore, certain LRADC channels are shared between touchscreen
 	 * and/or touch-buttons and generic LRADC block. Therefore when using
 	 * either of these, these channels are not available for the regular
@@ -237,7 +243,7 @@ struct mxs_lradc {
 	 * be sampled as regular LRADC channels. The driver will refuse any
 	 * attempt to sample these channels.
 	 */
-#define CHAN_MASK_TOUCHBUTTON		(0x3 << 0)
+#define CHAN_MASK_TOUCHBUTTON		(BIT(1) | BIT(0))
 #define CHAN_MASK_TOUCHSCREEN_4WIRE	(0xf << 2)
 #define CHAN_MASK_TOUCHSCREEN_5WIRE	(0x1f << 2)
 	enum mxs_lradc_ts	use_touchscreen;
@@ -262,20 +268,20 @@ struct mxs_lradc {
 };
 
 #define	LRADC_CTRL0				0x00
-# define LRADC_CTRL0_MX28_TOUCH_DETECT_ENABLE	(1 << 23)
-# define LRADC_CTRL0_MX28_TOUCH_SCREEN_TYPE	(1 << 22)
-# define LRADC_CTRL0_MX28_YNNSW	/* YM */	(1 << 21)
-# define LRADC_CTRL0_MX28_YPNSW	/* YP */	(1 << 20)
-# define LRADC_CTRL0_MX28_YPPSW	/* YP */	(1 << 19)
-# define LRADC_CTRL0_MX28_XNNSW	/* XM */	(1 << 18)
-# define LRADC_CTRL0_MX28_XNPSW	/* XM */	(1 << 17)
-# define LRADC_CTRL0_MX28_XPPSW	/* XP */	(1 << 16)
-
-# define LRADC_CTRL0_MX23_TOUCH_DETECT_ENABLE	(1 << 20)
-# define LRADC_CTRL0_MX23_YM			(1 << 19)
-# define LRADC_CTRL0_MX23_XM			(1 << 18)
-# define LRADC_CTRL0_MX23_YP			(1 << 17)
-# define LRADC_CTRL0_MX23_XP			(1 << 16)
+# define LRADC_CTRL0_MX28_TOUCH_DETECT_ENABLE	BIT(23)
+# define LRADC_CTRL0_MX28_TOUCH_SCREEN_TYPE	BIT(22)
+# define LRADC_CTRL0_MX28_YNNSW	/* YM */	BIT(21)
+# define LRADC_CTRL0_MX28_YPNSW	/* YP */	BIT(20)
+# define LRADC_CTRL0_MX28_YPPSW	/* YP */	BIT(19)
+# define LRADC_CTRL0_MX28_XNNSW	/* XM */	BIT(18)
+# define LRADC_CTRL0_MX28_XNPSW	/* XM */	BIT(17)
+# define LRADC_CTRL0_MX28_XPPSW	/* XP */	BIT(16)
+
+# define LRADC_CTRL0_MX23_TOUCH_DETECT_ENABLE	BIT(20)
+# define LRADC_CTRL0_MX23_YM			BIT(19)
+# define LRADC_CTRL0_MX23_XM			BIT(18)
+# define LRADC_CTRL0_MX23_YP			BIT(17)
+# define LRADC_CTRL0_MX23_XP			BIT(16)
 
 # define LRADC_CTRL0_MX28_PLATE_MASK \
 		(LRADC_CTRL0_MX28_TOUCH_DETECT_ENABLE | \
@@ -289,12 +295,12 @@ struct mxs_lradc {
 		LRADC_CTRL0_MX23_YP | LRADC_CTRL0_MX23_XP)
 
 #define	LRADC_CTRL1				0x10
-#define	LRADC_CTRL1_TOUCH_DETECT_IRQ_EN		(1 << 24)
+#define	LRADC_CTRL1_TOUCH_DETECT_IRQ_EN		BIT(24)
 #define	LRADC_CTRL1_LRADC_IRQ_EN(n)		(1 << ((n) + 16))
 #define	LRADC_CTRL1_MX28_LRADC_IRQ_EN_MASK	(0x1fff << 16)
 #define	LRADC_CTRL1_MX23_LRADC_IRQ_EN_MASK	(0x01ff << 16)
 #define	LRADC_CTRL1_LRADC_IRQ_EN_OFFSET		16
-#define	LRADC_CTRL1_TOUCH_DETECT_IRQ		(1 << 8)
+#define	LRADC_CTRL1_TOUCH_DETECT_IRQ		BIT(8)
 #define	LRADC_CTRL1_LRADC_IRQ(n)		(1 << (n))
 #define	LRADC_CTRL1_MX28_LRADC_IRQ_MASK		0x1fff
 #define	LRADC_CTRL1_MX23_LRADC_IRQ_MASK		0x01ff
@@ -302,13 +308,13 @@ struct mxs_lradc {
 
 #define	LRADC_CTRL2				0x20
 #define	LRADC_CTRL2_DIVIDE_BY_TWO_OFFSET	24
-#define	LRADC_CTRL2_TEMPSENSE_PWD		(1 << 15)
+#define	LRADC_CTRL2_TEMPSENSE_PWD		BIT(15)
 
 #define	LRADC_STATUS				0x40
-#define	LRADC_STATUS_TOUCH_DETECT_RAW		(1 << 0)
+#define	LRADC_STATUS_TOUCH_DETECT_RAW		BIT(0)
 
 #define	LRADC_CH(n)				(0x50 + (0x10 * (n)))
-#define	LRADC_CH_ACCUMULATE			(1 << 29)
+#define	LRADC_CH_ACCUMULATE			BIT(29)
 #define	LRADC_CH_NUM_SAMPLES_MASK		(0x1f << 24)
 #define	LRADC_CH_NUM_SAMPLES_OFFSET		24
 #define	LRADC_CH_NUM_SAMPLES(x) \
@@ -342,6 +348,9 @@ struct mxs_lradc {
 #define	LRADC_CTRL4				0x140
 #define	LRADC_CTRL4_LRADCSELECT_MASK(n)		(0xf << ((n) * 4))
 #define	LRADC_CTRL4_LRADCSELECT_OFFSET(n)	((n) * 4)
+#define	LRADC_CTRL4_LRADCSELECT(n, x) \
+				(((x) << LRADC_CTRL4_LRADCSELECT_OFFSET(n)) & \
+				LRADC_CTRL4_LRADCSELECT_MASK(n))
 
 #define LRADC_RESOLUTION			12
 #define LRADC_SINGLE_SAMPLE_MASK		((1 << LRADC_RESOLUTION) - 1)
@@ -416,6 +425,14 @@ static bool mxs_lradc_check_touch_event(struct mxs_lradc *lradc)
 					LRADC_STATUS_TOUCH_DETECT_RAW);
 }
 
+static void mxs_lradc_map_channel(struct mxs_lradc *lradc, unsigned vch,
+				  unsigned ch)
+{
+	mxs_lradc_reg_clear(lradc, LRADC_CTRL4_LRADCSELECT_MASK(vch),
+				LRADC_CTRL4);
+	mxs_lradc_reg_set(lradc, LRADC_CTRL4_LRADCSELECT(vch, ch), LRADC_CTRL4);
+}
+
 static void mxs_lradc_setup_ts_channel(struct mxs_lradc *lradc, unsigned ch)
 {
 	/*
@@ -450,12 +467,8 @@ static void mxs_lradc_setup_ts_channel(struct mxs_lradc *lradc, unsigned ch)
 		LRADC_DELAY_DELAY(lradc->over_sample_delay - 1),
 			LRADC_DELAY(3));
 
-	mxs_lradc_reg_clear(lradc, LRADC_CTRL1_LRADC_IRQ(2) |
-			LRADC_CTRL1_LRADC_IRQ(3) | LRADC_CTRL1_LRADC_IRQ(4) |
-			LRADC_CTRL1_LRADC_IRQ(5), LRADC_CTRL1);
+	mxs_lradc_reg_clear(lradc, LRADC_CTRL1_LRADC_IRQ(ch), LRADC_CTRL1);
 
-	/* wake us again, when the complete conversion is done */
-	mxs_lradc_reg_set(lradc, LRADC_CTRL1_LRADC_IRQ_EN(ch), LRADC_CTRL1);
 	/*
 	 * after changing the touchscreen plates setting
 	 * the signals need some initial time to settle. Start the
@@ -464,7 +477,7 @@ static void mxs_lradc_setup_ts_channel(struct mxs_lradc *lradc, unsigned ch)
 	 */
 	mxs_lradc_reg_wrt(lradc,
 		LRADC_DELAY_TRIGGER(0) | /* don't trigger ADC */
-		LRADC_DELAY_TRIGGER_DELAYS(1 << 3) | /* trigger DELAY unit#3 */
+		LRADC_DELAY_TRIGGER_DELAYS(BIT(3)) | /* trigger DELAY unit#3 */
 		LRADC_DELAY_KICK |
 		LRADC_DELAY_DELAY(lradc->settling_delay),
 			LRADC_DELAY(2));
@@ -509,12 +522,8 @@ static void mxs_lradc_setup_ts_pressure(struct mxs_lradc *lradc, unsigned ch1,
 		LRADC_DELAY_DELAY(lradc->over_sample_delay - 1),
 					LRADC_DELAY(3));
 
-	mxs_lradc_reg_clear(lradc, LRADC_CTRL1_LRADC_IRQ(2) |
-			LRADC_CTRL1_LRADC_IRQ(3) | LRADC_CTRL1_LRADC_IRQ(4) |
-			LRADC_CTRL1_LRADC_IRQ(5), LRADC_CTRL1);
+	mxs_lradc_reg_clear(lradc, LRADC_CTRL1_LRADC_IRQ(ch2), LRADC_CTRL1);
 
-	/* wake us again, when the conversions are done */
-	mxs_lradc_reg_set(lradc, LRADC_CTRL1_LRADC_IRQ_EN(ch2), LRADC_CTRL1);
 	/*
 	 * after changing the touchscreen plates setting
 	 * the signals need some initial time to settle. Start the
@@ -523,7 +532,7 @@ static void mxs_lradc_setup_ts_pressure(struct mxs_lradc *lradc, unsigned ch1,
 	 */
 	mxs_lradc_reg_wrt(lradc,
 		LRADC_DELAY_TRIGGER(0) | /* don't trigger ADC */
-		LRADC_DELAY_TRIGGER_DELAYS(1 << 3) | /* trigger DELAY unit#3 */
+		LRADC_DELAY_TRIGGER_DELAYS(BIT(3)) | /* trigger DELAY unit#3 */
 		LRADC_DELAY_KICK |
 		LRADC_DELAY_DELAY(lradc->settling_delay), LRADC_DELAY(2));
 }
@@ -580,36 +589,6 @@ static unsigned mxs_lradc_read_ts_pressure(struct mxs_lradc *lradc,
 #define TS_CH_XM 4
 #define TS_CH_YM 5
 
-static int mxs_lradc_read_ts_channel(struct mxs_lradc *lradc)
-{
-	u32 reg;
-	int val;
-
-	reg = readl(lradc->base + LRADC_CTRL1);
-
-	/* only channels 3 to 5 are of interest here */
-	if (reg & LRADC_CTRL1_LRADC_IRQ(TS_CH_YP)) {
-		mxs_lradc_reg_clear(lradc, LRADC_CTRL1_LRADC_IRQ_EN(TS_CH_YP) |
-			LRADC_CTRL1_LRADC_IRQ(TS_CH_YP), LRADC_CTRL1);
-		val = mxs_lradc_read_raw_channel(lradc, TS_CH_YP);
-	} else if (reg & LRADC_CTRL1_LRADC_IRQ(TS_CH_XM)) {
-		mxs_lradc_reg_clear(lradc, LRADC_CTRL1_LRADC_IRQ_EN(TS_CH_XM) |
-			LRADC_CTRL1_LRADC_IRQ(TS_CH_XM), LRADC_CTRL1);
-		val = mxs_lradc_read_raw_channel(lradc, TS_CH_XM);
-	} else if (reg & LRADC_CTRL1_LRADC_IRQ(TS_CH_YM)) {
-		mxs_lradc_reg_clear(lradc, LRADC_CTRL1_LRADC_IRQ_EN(TS_CH_YM) |
-			LRADC_CTRL1_LRADC_IRQ(TS_CH_YM), LRADC_CTRL1);
-		val = mxs_lradc_read_raw_channel(lradc, TS_CH_YM);
-	} else {
-		return -EIO;
-	}
-
-	mxs_lradc_reg_wrt(lradc, 0, LRADC_DELAY(2));
-	mxs_lradc_reg_wrt(lradc, 0, LRADC_DELAY(3));
-
-	return val;
-}
-
 /*
  * YP(open)--+-------------+
  *           |             |--+
@@ -653,7 +632,8 @@ static void mxs_lradc_prepare_x_pos(struct mxs_lradc *lradc)
 	mxs_lradc_reg_set(lradc, mxs_lradc_drive_x_plate(lradc), LRADC_CTRL0);
 
 	lradc->cur_plate = LRADC_SAMPLE_X;
-	mxs_lradc_setup_ts_channel(lradc, TS_CH_YP);
+	mxs_lradc_map_channel(lradc, TOUCHSCREEN_VCHANNEL1, TS_CH_YP);
+	mxs_lradc_setup_ts_channel(lradc, TOUCHSCREEN_VCHANNEL1);
 }
 
 /*
@@ -674,7 +654,8 @@ static void mxs_lradc_prepare_y_pos(struct mxs_lradc *lradc)
 	mxs_lradc_reg_set(lradc, mxs_lradc_drive_y_plate(lradc), LRADC_CTRL0);
 
 	lradc->cur_plate = LRADC_SAMPLE_Y;
-	mxs_lradc_setup_ts_channel(lradc, TS_CH_XM);
+	mxs_lradc_map_channel(lradc, TOUCHSCREEN_VCHANNEL1, TS_CH_XM);
+	mxs_lradc_setup_ts_channel(lradc, TOUCHSCREEN_VCHANNEL1);
 }
 
 /*
@@ -695,7 +676,10 @@ static void mxs_lradc_prepare_pressure(struct mxs_lradc *lradc)
 	mxs_lradc_reg_set(lradc, mxs_lradc_drive_pressure(lradc), LRADC_CTRL0);
 
 	lradc->cur_plate = LRADC_SAMPLE_PRESSURE;
-	mxs_lradc_setup_ts_pressure(lradc, TS_CH_XP, TS_CH_YM);
+	mxs_lradc_map_channel(lradc, TOUCHSCREEN_VCHANNEL1, TS_CH_YM);
+	mxs_lradc_map_channel(lradc, TOUCHSCREEN_VCHANNEL2, TS_CH_XP);
+	mxs_lradc_setup_ts_pressure(lradc, TOUCHSCREEN_VCHANNEL2,
+						TOUCHSCREEN_VCHANNEL1);
 }
 
 static void mxs_lradc_enable_touch_detection(struct mxs_lradc *lradc)
@@ -708,6 +692,19 @@ static void mxs_lradc_enable_touch_detection(struct mxs_lradc *lradc)
 	mxs_lradc_reg_set(lradc, LRADC_CTRL1_TOUCH_DETECT_IRQ_EN, LRADC_CTRL1);
 }
 
+static void mxs_lradc_start_touch_event(struct mxs_lradc *lradc)
+{
+	mxs_lradc_reg_clear(lradc, LRADC_CTRL1_TOUCH_DETECT_IRQ_EN,
+				LRADC_CTRL1);
+	mxs_lradc_reg_set(lradc,
+		LRADC_CTRL1_LRADC_IRQ_EN(TOUCHSCREEN_VCHANNEL1), LRADC_CTRL1);
+	/*
+	 * start with the Y-pos, because it uses nearly the same plate
+	 * settings like the touch detection
+	 */
+	mxs_lradc_prepare_y_pos(lradc);
+}
+
 static void mxs_lradc_report_ts_event(struct mxs_lradc *lradc)
 {
 	input_report_abs(lradc->ts_input, ABS_X, lradc->ts_x_pos);
@@ -725,10 +722,12 @@ static void mxs_lradc_complete_touch_event(struct mxs_lradc *lradc)
 	 * start a dummy conversion to burn time to settle the signals
 	 * note: we are not interested in the conversion's value
 	 */
-	mxs_lradc_reg_wrt(lradc, 0, LRADC_CH(5));
-	mxs_lradc_reg_clear(lradc, LRADC_CTRL1_LRADC_IRQ(5), LRADC_CTRL1);
-	mxs_lradc_reg_set(lradc, LRADC_CTRL1_LRADC_IRQ_EN(5), LRADC_CTRL1);
-	mxs_lradc_reg_wrt(lradc, LRADC_DELAY_TRIGGER(1 << 5) |
+	mxs_lradc_reg_wrt(lradc, 0, LRADC_CH(TOUCHSCREEN_VCHANNEL1));
+	mxs_lradc_reg_clear(lradc,
+		LRADC_CTRL1_LRADC_IRQ(TOUCHSCREEN_VCHANNEL1) |
+		LRADC_CTRL1_LRADC_IRQ(TOUCHSCREEN_VCHANNEL2), LRADC_CTRL1);
+	mxs_lradc_reg_wrt(lradc,
+		LRADC_DELAY_TRIGGER(1 << TOUCHSCREEN_VCHANNEL1) |
 		LRADC_DELAY_KICK | LRADC_DELAY_DELAY(10), /* waste 5 ms */
 			LRADC_DELAY(2));
 }
@@ -760,59 +759,45 @@ static void mxs_lradc_finish_touch_event(struct mxs_lradc *lradc, bool valid)
 
 	/* if it is released, wait for the next touch via IRQ */
 	lradc->cur_plate = LRADC_TOUCH;
-	mxs_lradc_reg_clear(lradc, LRADC_CTRL1_TOUCH_DETECT_IRQ, LRADC_CTRL1);
+	mxs_lradc_reg_wrt(lradc, 0, LRADC_DELAY(2));
+	mxs_lradc_reg_wrt(lradc, 0, LRADC_DELAY(3));
+	mxs_lradc_reg_clear(lradc, LRADC_CTRL1_TOUCH_DETECT_IRQ |
+		LRADC_CTRL1_LRADC_IRQ_EN(TOUCHSCREEN_VCHANNEL1) |
+		LRADC_CTRL1_LRADC_IRQ(TOUCHSCREEN_VCHANNEL1), LRADC_CTRL1);
 	mxs_lradc_reg_set(lradc, LRADC_CTRL1_TOUCH_DETECT_IRQ_EN, LRADC_CTRL1);
 }
 
 /* touchscreen's state machine */
 static void mxs_lradc_handle_touch(struct mxs_lradc *lradc)
 {
-	int val;
-
 	switch (lradc->cur_plate) {
 	case LRADC_TOUCH:
-		/*
-		 * start with the Y-pos, because it uses nearly the same plate
-		 * settings like the touch detection
-		 */
-		if (mxs_lradc_check_touch_event(lradc)) {
-			mxs_lradc_reg_clear(lradc,
-					LRADC_CTRL1_TOUCH_DETECT_IRQ_EN,
-					LRADC_CTRL1);
-			mxs_lradc_prepare_y_pos(lradc);
-		}
+		if (mxs_lradc_check_touch_event(lradc))
+			mxs_lradc_start_touch_event(lradc);
 		mxs_lradc_reg_clear(lradc, LRADC_CTRL1_TOUCH_DETECT_IRQ,
 					LRADC_CTRL1);
 		return;
 
 	case LRADC_SAMPLE_Y:
-		val = mxs_lradc_read_ts_channel(lradc);
-		if (val < 0) {
-			mxs_lradc_enable_touch_detection(lradc); /* re-start */
-			return;
-		}
-		lradc->ts_y_pos = val;
+		lradc->ts_y_pos = mxs_lradc_read_raw_channel(lradc,
+							TOUCHSCREEN_VCHANNEL1);
 		mxs_lradc_prepare_x_pos(lradc);
 		return;
 
 	case LRADC_SAMPLE_X:
-		val = mxs_lradc_read_ts_channel(lradc);
-		if (val < 0) {
-			mxs_lradc_enable_touch_detection(lradc); /* re-start */
-			return;
-		}
-		lradc->ts_x_pos = val;
+		lradc->ts_x_pos = mxs_lradc_read_raw_channel(lradc,
+							TOUCHSCREEN_VCHANNEL1);
 		mxs_lradc_prepare_pressure(lradc);
 		return;
 
 	case LRADC_SAMPLE_PRESSURE:
-		lradc->ts_pressure =
-			mxs_lradc_read_ts_pressure(lradc, TS_CH_XP, TS_CH_YM);
+		lradc->ts_pressure = mxs_lradc_read_ts_pressure(lradc,
+							TOUCHSCREEN_VCHANNEL2,
+							TOUCHSCREEN_VCHANNEL1);
 		mxs_lradc_complete_touch_event(lradc);
 		return;
 
 	case LRADC_SAMPLE_VALID:
-		val = mxs_lradc_read_ts_channel(lradc); /* ignore the value */
 		mxs_lradc_finish_touch_event(lradc, 1);
 		break;
 	}
@@ -844,9 +829,9 @@ static int mxs_lradc_read_single(struct iio_dev *iio_dev, int chan, int *val)
 	 * used if doing raw sampling.
 	 */
 	if (lradc->soc == IMX28_LRADC)
-		mxs_lradc_reg_clear(lradc, LRADC_CTRL1_MX28_LRADC_IRQ_EN_MASK,
+		mxs_lradc_reg_clear(lradc, LRADC_CTRL1_LRADC_IRQ_EN(0),
 			LRADC_CTRL1);
-	mxs_lradc_reg_clear(lradc, 0xff, LRADC_CTRL0);
+	mxs_lradc_reg_clear(lradc, 0x1, LRADC_CTRL0);
 
 	/* Enable / disable the divider per requirement */
 	if (test_bit(chan, &lradc->is_divided))
@@ -865,7 +850,7 @@ static int mxs_lradc_read_single(struct iio_dev *iio_dev, int chan, int *val)
 
 	/* Enable the IRQ and start sampling the channel. */
 	mxs_lradc_reg_set(lradc, LRADC_CTRL1_LRADC_IRQ_EN(0), LRADC_CTRL1);
-	mxs_lradc_reg_set(lradc, 1 << 0, LRADC_CTRL0);
+	mxs_lradc_reg_set(lradc, BIT(0), LRADC_CTRL0);
 
 	/* Wait for completion on the channel, 1 second max. */
 	ret = wait_for_completion_killable_timeout(&lradc->completion, HZ);
@@ -1008,7 +993,7 @@ static ssize_t mxs_lradc_show_scale_available_ch(struct device *dev,
 	int i, len = 0;
 
 	for (i = 0; i < ARRAY_SIZE(lradc->scale_avail[ch]); i++)
-		len += sprintf(buf + len, "%d.%09u ",
+		len += sprintf(buf + len, "%u.%09u ",
 			       lradc->scale_avail[ch][i].integer,
 			       lradc->scale_avail[ch][i].nano);
 
@@ -1090,9 +1075,8 @@ static void mxs_lradc_disable_ts(struct mxs_lradc *lradc)
 {
 	/* stop all interrupts from firing */
 	mxs_lradc_reg_clear(lradc, LRADC_CTRL1_TOUCH_DETECT_IRQ_EN |
-		LRADC_CTRL1_LRADC_IRQ_EN(2) | LRADC_CTRL1_LRADC_IRQ_EN(3) |
-		LRADC_CTRL1_LRADC_IRQ_EN(4) | LRADC_CTRL1_LRADC_IRQ_EN(5),
-		LRADC_CTRL1);
+		LRADC_CTRL1_LRADC_IRQ_EN(TOUCHSCREEN_VCHANNEL1) |
+		LRADC_CTRL1_LRADC_IRQ_EN(TOUCHSCREEN_VCHANNEL2), LRADC_CTRL1);
 
 	/* Power-down touchscreen touch-detect circuitry. */
 	mxs_lradc_reg_clear(lradc, mxs_lradc_plate_mask(lradc), LRADC_CTRL0);
@@ -1158,26 +1142,31 @@ static irqreturn_t mxs_lradc_handle_irq(int irq, void *data)
 	struct iio_dev *iio = data;
 	struct mxs_lradc *lradc = iio_priv(iio);
 	unsigned long reg = readl(lradc->base + LRADC_CTRL1);
+	uint32_t clr_irq = mxs_lradc_irq_mask(lradc);
 	const uint32_t ts_irq_mask =
 		LRADC_CTRL1_TOUCH_DETECT_IRQ |
-		LRADC_CTRL1_LRADC_IRQ(2) |
-		LRADC_CTRL1_LRADC_IRQ(3) |
-		LRADC_CTRL1_LRADC_IRQ(4) |
-		LRADC_CTRL1_LRADC_IRQ(5);
+		LRADC_CTRL1_LRADC_IRQ(TOUCHSCREEN_VCHANNEL1) |
+		LRADC_CTRL1_LRADC_IRQ(TOUCHSCREEN_VCHANNEL2);
 
 	if (!(reg & mxs_lradc_irq_mask(lradc)))
 		return IRQ_NONE;
 
-	if (lradc->use_touchscreen && (reg & ts_irq_mask))
+	if (lradc->use_touchscreen && (reg & ts_irq_mask)) {
 		mxs_lradc_handle_touch(lradc);
 
-	if (iio_buffer_enabled(iio))
-		iio_trigger_poll(iio->trig);
-	else if (reg & LRADC_CTRL1_LRADC_IRQ(0))
+		/* Make sure we don't clear the next conversion's interrupt. */
+		clr_irq &= ~(LRADC_CTRL1_LRADC_IRQ(TOUCHSCREEN_VCHANNEL1) |
+				LRADC_CTRL1_LRADC_IRQ(TOUCHSCREEN_VCHANNEL2));
+	}
+
+	if (iio_buffer_enabled(iio)) {
+		if (reg & lradc->buffer_vchans)
+			iio_trigger_poll(iio->trig);
+	} else if (reg & LRADC_CTRL1_LRADC_IRQ(0)) {
 		complete(&lradc->completion);
+	}
 
-	mxs_lradc_reg_clear(lradc, reg & mxs_lradc_irq_mask(lradc),
-			LRADC_CTRL1);
+	mxs_lradc_reg_clear(lradc, reg & clr_irq, LRADC_CTRL1);
 
 	return IRQ_HANDLED;
 }
@@ -1289,9 +1278,10 @@ static int mxs_lradc_buffer_preenable(struct iio_dev *iio)
 	}
 
 	if (lradc->soc == IMX28_LRADC)
-		mxs_lradc_reg_clear(lradc, LRADC_CTRL1_MX28_LRADC_IRQ_EN_MASK,
-							LRADC_CTRL1);
-	mxs_lradc_reg_clear(lradc, 0xff, LRADC_CTRL0);
+		mxs_lradc_reg_clear(lradc,
+			lradc->buffer_vchans << LRADC_CTRL1_LRADC_IRQ_EN_OFFSET,
+			LRADC_CTRL1);
+	mxs_lradc_reg_clear(lradc, lradc->buffer_vchans, LRADC_CTRL0);
 
 	for_each_set_bit(chan, iio->active_scan_mask, LRADC_MAX_TOTAL_CHANS) {
 		ctrl4_set |= chan << LRADC_CTRL4_LRADCSELECT_OFFSET(ofs);
@@ -1324,10 +1314,11 @@ static int mxs_lradc_buffer_postdisable(struct iio_dev *iio)
 	mxs_lradc_reg_clear(lradc, LRADC_DELAY_TRIGGER_LRADCS_MASK |
 					LRADC_DELAY_KICK, LRADC_DELAY(0));
 
-	mxs_lradc_reg_clear(lradc, 0xff, LRADC_CTRL0);
+	mxs_lradc_reg_clear(lradc, lradc->buffer_vchans, LRADC_CTRL0);
 	if (lradc->soc == IMX28_LRADC)
-		mxs_lradc_reg_clear(lradc, LRADC_CTRL1_MX28_LRADC_IRQ_EN_MASK,
-					LRADC_CTRL1);
+		mxs_lradc_reg_clear(lradc,
+			lradc->buffer_vchans << LRADC_CTRL1_LRADC_IRQ_EN_OFFSET,
+			LRADC_CTRL1);
 
 	kfree(lradc->buffer);
 	mutex_unlock(&lradc->lock);
@@ -1353,7 +1344,7 @@ static bool mxs_lradc_validate_scan_mask(struct iio_dev *iio,
 	if (lradc->use_touchbutton)
 		rsvd_chans++;
 	if (lradc->use_touchscreen)
-		rsvd_chans++;
+		rsvd_chans += 2;
 
 	/* Test for attempts to map channels with special mode of operation. */
 	if (bitmap_intersects(mask, &rsvd_mask, LRADC_MAX_TOTAL_CHANS))
@@ -1413,6 +1404,13 @@ static const struct iio_chan_spec mxs_lradc_chan_spec[] = {
 		.channel = 8,
 		.scan_type = {.sign = 'u', .realbits = 18, .storagebits = 32,},
 	},
+	/* Hidden channel to keep indexes */
+	{
+		.type = IIO_TEMP,
+		.indexed = 1,
+		.scan_index = -1,
+		.channel = 9,
+	},
 	MXS_ADC_CHAN(10, IIO_VOLTAGE),	/* VDDIO */
 	MXS_ADC_CHAN(11, IIO_VOLTAGE),	/* VTH */
 	MXS_ADC_CHAN(12, IIO_VOLTAGE),	/* VDDA */
@@ -1583,6 +1581,11 @@ static int mxs_lradc_probe(struct platform_device *pdev)
 
 	touch_ret = mxs_lradc_probe_touchscreen(lradc, node);
 
+	if (touch_ret == 0)
+		lradc->buffer_vchans = BUFFER_VCHANS_LIMITED;
+	else
+		lradc->buffer_vchans = BUFFER_VCHANS_ALL;
+
 	/* Grab all IRQ sources */
 	for (i = 0; i < of_cfg->irq_count; i++) {
 		lradc->irq[i] = platform_get_irq(pdev, i);
diff --git a/drivers/staging/iio/adc/spear_adc.c b/drivers/staging/iio/adc/spear_adc.c
index 8ad7169..c538237 100644
--- a/drivers/staging/iio/adc/spear_adc.c
+++ b/drivers/staging/iio/adc/spear_adc.c
@@ -29,11 +29,11 @@
 #define SPEAR_ADC_CLK_HIGH(x)		(((x) & 0xf) << 4)
 
 /* Bit definitions for SPEAR_ADC_STATUS */
-#define SPEAR_ADC_STATUS_START_CONVERSION	(1 << 0)
+#define SPEAR_ADC_STATUS_START_CONVERSION	BIT(0)
 #define SPEAR_ADC_STATUS_CHANNEL_NUM(x)		((x) << 1)
-#define SPEAR_ADC_STATUS_ADC_ENABLE		(1 << 4)
+#define SPEAR_ADC_STATUS_ADC_ENABLE		BIT(4)
 #define SPEAR_ADC_STATUS_AVG_SAMPLE(x)		((x) << 5)
-#define SPEAR_ADC_STATUS_VREF_INTERNAL		(1 << 9)
+#define SPEAR_ADC_STATUS_VREF_INTERNAL		BIT(9)
 
 #define SPEAR_ADC_DATA_MASK		0x03ff
 #define SPEAR_ADC_DATA_BITS		10
diff --git a/drivers/staging/iio/frequency/ad9832.c b/drivers/staging/iio/frequency/ad9832.c
index cf68159..a861fe0 100644
--- a/drivers/staging/iio/frequency/ad9832.c
+++ b/drivers/staging/iio/frequency/ad9832.c
@@ -24,8 +24,8 @@
 
 static unsigned long ad9832_calc_freqreg(unsigned long mclk, unsigned long fout)
 {
-	unsigned long long freqreg = (u64) fout *
-				     (u64) ((u64) 1L << AD9832_FREQ_BITS);
+	unsigned long long freqreg = (u64)fout *
+				     (u64)((u64)1L << AD9832_FREQ_BITS);
 	do_div(freqreg, mclk);
 	return freqreg;
 }
@@ -59,7 +59,7 @@ static int ad9832_write_frequency(struct ad9832_state *st,
 static int ad9832_write_phase(struct ad9832_state *st,
 			      unsigned long addr, unsigned long phase)
 {
-	if (phase > (1 << AD9832_PHASE_BITS))
+	if (phase > BIT(AD9832_PHASE_BITS))
 		return -EINVAL;
 
 	st->phase_data[0] = cpu_to_be16((AD9832_CMD_PHA8BITSW << CMD_SHIFT) |
@@ -86,7 +86,7 @@ static ssize_t ad9832_write(struct device *dev, struct device_attribute *attr,
 		goto error_ret;
 
 	mutex_lock(&indio_dev->mlock);
-	switch ((u32) this_attr->address) {
+	switch ((u32)this_attr->address) {
 	case AD9832_FREQ0HM:
 	case AD9832_FREQ1HM:
 		ret = ad9832_write_frequency(st, this_attr->address, val);
@@ -220,7 +220,7 @@ static int ad9832_probe(struct spi_device *spi)
 	}
 
 	indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
-	if (indio_dev == NULL) {
+	if (!indio_dev) {
 		ret = -ENOMEM;
 		goto error_disable_reg;
 	}
diff --git a/drivers/staging/iio/frequency/ad9832.h b/drivers/staging/iio/frequency/ad9832.h
index 386f4dc..d32323b 100644
--- a/drivers/staging/iio/frequency/ad9832.h
+++ b/drivers/staging/iio/frequency/ad9832.h
@@ -42,13 +42,13 @@
 #define AD9832_CMD_SYNCSELSRC	0x8
 #define AD9832_CMD_SLEEPRESCLR	0xC
 
-#define AD9832_FREQ		(1 << 11)
+#define AD9832_FREQ		BIT(11)
 #define AD9832_PHASE(x)		(((x) & 3) << 9)
-#define AD9832_SYNC		(1 << 13)
-#define AD9832_SELSRC		(1 << 12)
-#define AD9832_SLEEP		(1 << 13)
-#define AD9832_RESET		(1 << 12)
-#define AD9832_CLR		(1 << 11)
+#define AD9832_SYNC		BIT(13)
+#define AD9832_SELSRC		BIT(12)
+#define AD9832_SLEEP		BIT(13)
+#define AD9832_RESET		BIT(12)
+#define AD9832_CLR		BIT(11)
 #define CMD_SHIFT		12
 #define ADD_SHIFT		8
 #define AD9832_FREQ_BITS	32
diff --git a/drivers/staging/iio/frequency/ad9834.c b/drivers/staging/iio/frequency/ad9834.c
index 5c80319..d02bb44 100644
--- a/drivers/staging/iio/frequency/ad9834.c
+++ b/drivers/staging/iio/frequency/ad9834.c
@@ -27,7 +27,7 @@
 
 static unsigned int ad9834_calc_freqreg(unsigned long mclk, unsigned long fout)
 {
-	unsigned long long freqreg = (u64) fout * (u64) (1 << AD9834_FREQ_BITS);
+	unsigned long long freqreg = (u64)fout * (u64)BIT(AD9834_FREQ_BITS);
 
 	do_div(freqreg, mclk);
 	return freqreg;
@@ -53,9 +53,9 @@ static int ad9834_write_frequency(struct ad9834_state *st,
 }
 
 static int ad9834_write_phase(struct ad9834_state *st,
-				  unsigned long addr, unsigned long phase)
+			      unsigned long addr, unsigned long phase)
 {
-	if (phase > (1 << AD9834_PHASE_BITS))
+	if (phase > BIT(AD9834_PHASE_BITS))
 		return -EINVAL;
 	st->data = cpu_to_be16(addr | phase);
 
@@ -63,9 +63,9 @@ static int ad9834_write_phase(struct ad9834_state *st,
 }
 
 static ssize_t ad9834_write(struct device *dev,
-		struct device_attribute *attr,
-		const char *buf,
-		size_t len)
+			    struct device_attribute *attr,
+			    const char *buf,
+			    size_t len)
 {
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct ad9834_state *st = iio_priv(indio_dev);
@@ -78,7 +78,7 @@ static ssize_t ad9834_write(struct device *dev,
 		goto error_ret;
 
 	mutex_lock(&indio_dev->mlock);
-	switch ((u32) this_attr->address) {
+	switch ((u32)this_attr->address) {
 	case AD9834_REG_FREQ0:
 	case AD9834_REG_FREQ1:
 		ret = ad9834_write_frequency(st, this_attr->address, val);
@@ -111,9 +111,9 @@ static ssize_t ad9834_write(struct device *dev,
 		break;
 	case AD9834_FSEL:
 	case AD9834_PSEL:
-		if (val == 0)
+		if (val == 0) {
 			st->control &= ~(this_attr->address | AD9834_PIN_SW);
-		else if (val == 1) {
+		} else if (val == 1) {
 			st->control |= this_attr->address;
 			st->control &= ~AD9834_PIN_SW;
 		} else {
@@ -142,9 +142,9 @@ error_ret:
 }
 
 static ssize_t ad9834_store_wavetype(struct device *dev,
-				 struct device_attribute *attr,
-				 const char *buf,
-				 size_t len)
+				     struct device_attribute *attr,
+				     const char *buf,
+				     size_t len)
 {
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct ad9834_state *st = iio_priv(indio_dev);
@@ -154,7 +154,7 @@ static ssize_t ad9834_store_wavetype(struct device *dev,
 
 	mutex_lock(&indio_dev->mlock);
 
-	switch ((u32) this_attr->address) {
+	switch ((u32)this_attr->address) {
 	case 0:
 		if (sysfs_streq(buf, "sine")) {
 			st->control &= ~AD9834_MODE;
@@ -179,7 +179,7 @@ static ssize_t ad9834_store_wavetype(struct device *dev,
 		break;
 	case 1:
 		if (sysfs_streq(buf, "square") &&
-			!(st->control & AD9834_MODE)) {
+		    !(st->control & AD9834_MODE)) {
 			st->control &= ~AD9834_MODE;
 			st->control |= AD9834_OPBITEN;
 		} else {
@@ -200,9 +200,10 @@ static ssize_t ad9834_store_wavetype(struct device *dev,
 	return ret ? ret : len;
 }
 
-static ssize_t ad9834_show_out0_wavetype_available(struct device *dev,
-						struct device_attribute *attr,
-						char *buf)
+static
+ssize_t ad9834_show_out0_wavetype_available(struct device *dev,
+					    struct device_attribute *attr,
+					    char *buf)
 {
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct ad9834_state *st = iio_priv(indio_dev);
@@ -218,13 +219,13 @@ static ssize_t ad9834_show_out0_wavetype_available(struct device *dev,
 	return sprintf(buf, "%s\n", str);
 }
 
-
 static IIO_DEVICE_ATTR(out_altvoltage0_out0_wavetype_available, S_IRUGO,
 		       ad9834_show_out0_wavetype_available, NULL, 0);
 
-static ssize_t ad9834_show_out1_wavetype_available(struct device *dev,
-						struct device_attribute *attr,
-						char *buf)
+static
+ssize_t ad9834_show_out1_wavetype_available(struct device *dev,
+					    struct device_attribute *attr,
+					    char *buf)
 {
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct ad9834_state *st = iio_priv(indio_dev);
@@ -336,7 +337,7 @@ static int ad9834_probe(struct spi_device *spi)
 	}
 
 	indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
-	if (indio_dev == NULL) {
+	if (!indio_dev) {
 		ret = -ENOMEM;
 		goto error_disable_reg;
 	}
diff --git a/drivers/staging/iio/frequency/ad9834.h b/drivers/staging/iio/frequency/ad9834.h
index 8ca6e52..40fdd5d 100644
--- a/drivers/staging/iio/frequency/ad9834.h
+++ b/drivers/staging/iio/frequency/ad9834.h
@@ -10,31 +10,31 @@
 
 /* Registers */
 
-#define AD9834_REG_CMD		(0 << 14)
-#define AD9834_REG_FREQ0	(1 << 14)
-#define AD9834_REG_FREQ1	(2 << 14)
-#define AD9834_REG_PHASE0	(6 << 13)
-#define AD9834_REG_PHASE1	(7 << 13)
+#define AD9834_REG_CMD		0
+#define AD9834_REG_FREQ0	BIT(14)
+#define AD9834_REG_FREQ1	BIT(15)
+#define AD9834_REG_PHASE0	(BIT(15) | BIT(14))
+#define AD9834_REG_PHASE1	(BIT(15) | BIT(14) | BIT(13))
 
 /* Command Control Bits */
 
-#define AD9834_B28		(1 << 13)
-#define AD9834_HLB		(1 << 12)
-#define AD9834_FSEL		(1 << 11)
-#define AD9834_PSEL		(1 << 10)
-#define AD9834_PIN_SW		(1 << 9)
-#define AD9834_RESET		(1 << 8)
-#define AD9834_SLEEP1		(1 << 7)
-#define AD9834_SLEEP12		(1 << 6)
-#define AD9834_OPBITEN		(1 << 5)
-#define AD9834_SIGN_PIB		(1 << 4)
-#define AD9834_DIV2		(1 << 3)
-#define AD9834_MODE		(1 << 1)
+#define AD9834_B28		BIT(13)
+#define AD9834_HLB		BIT(12)
+#define AD9834_FSEL		BIT(11)
+#define AD9834_PSEL		BIT(10)
+#define AD9834_PIN_SW		BIT(9)
+#define AD9834_RESET		BIT(8)
+#define AD9834_SLEEP1		BIT(7)
+#define AD9834_SLEEP12		BIT(6)
+#define AD9834_OPBITEN		BIT(5)
+#define AD9834_SIGN_PIB		BIT(4)
+#define AD9834_DIV2		BIT(3)
+#define AD9834_MODE		BIT(1)
 
 #define AD9834_FREQ_BITS	28
 #define AD9834_PHASE_BITS	12
 
-#define RES_MASK(bits)	((1 << (bits)) - 1)
+#define RES_MASK(bits)	(BIT(bits) - 1)
 
 /**
  * struct ad9834_state - driver instance specific data
@@ -69,7 +69,6 @@ struct ad9834_state {
 	__be16				freq_data[2];
 };
 
-
 /*
  * TODO: struct ad7887_platform_data needs to go into include/linux/iio
  */
diff --git a/drivers/staging/iio/frequency/dds.h b/drivers/staging/iio/frequency/dds.h
index 611e2b0..fe53e732 100644
--- a/drivers/staging/iio/frequency/dds.h
+++ b/drivers/staging/iio/frequency/dds.h
@@ -5,6 +5,8 @@
  *
  * Licensed under the GPL-2 or later.
  */
+#ifndef IIO_DDS_H_
+#define IIO_DDS_H_
 
 /**
  * /sys/bus/iio/devices/.../out_altvoltageX_frequencyY
@@ -108,3 +110,5 @@
 #define IIO_CONST_ATTR_OUT_WAVETYPES_AVAILABLE(_channel, _output, _modes)\
 	IIO_CONST_ATTR(							\
 	out_altvoltage##_channel##_out##_output##_wavetype_available, _modes)
+
+#endif /* IIO_DDS_H_ */
diff --git a/drivers/staging/iio/iio_dummy_evgen.c b/drivers/staging/iio/iio_dummy_evgen.c
index 59ad5a3..0c9c86d 100644
--- a/drivers/staging/iio/iio_dummy_evgen.c
+++ b/drivers/staging/iio/iio_dummy_evgen.c
@@ -72,7 +72,7 @@ static int iio_dummy_evgen_create(void)
 	int ret, i;
 
 	iio_evgen = kzalloc(sizeof(*iio_evgen), GFP_KERNEL);
-	if (iio_evgen == NULL)
+	if (!iio_evgen)
 		return -ENOMEM;
 
 	iio_evgen->base = irq_alloc_descs(-1, 0, IIO_EVENTGEN_NO, 0);
@@ -105,7 +105,7 @@ int iio_dummy_evgen_get_irq(void)
 {
 	int i, ret = 0;
 
-	if (iio_evgen == NULL)
+	if (!iio_evgen)
 		return -ENODEV;
 
 	mutex_lock(&iio_evgen->lock);
diff --git a/drivers/staging/iio/iio_simple_dummy.c b/drivers/staging/iio/iio_simple_dummy.c
index e452021..b47bf9f 100644
--- a/drivers/staging/iio/iio_simple_dummy.c
+++ b/drivers/staging/iio/iio_simple_dummy.c
@@ -17,7 +17,6 @@
 #include <linux/kernel.h>
 #include <linux/slab.h>
 #include <linux/module.h>
-#include <linux/moduleparam.h>
 
 #include <linux/iio/iio.h>
 #include <linux/iio/sysfs.h>
@@ -589,7 +588,7 @@ static int iio_dummy_probe(int index)
 	 * for chip specific state information.
 	 */
 	indio_dev = iio_device_alloc(sizeof(*st));
-	if (indio_dev == NULL) {
+	if (!indio_dev) {
 		ret = -ENOMEM;
 		goto error_ret;
 	}
diff --git a/drivers/staging/iio/iio_simple_dummy_buffer.c b/drivers/staging/iio/iio_simple_dummy_buffer.c
index 360a4c9..a651b89 100644
--- a/drivers/staging/iio/iio_simple_dummy_buffer.c
+++ b/drivers/staging/iio/iio_simple_dummy_buffer.c
@@ -50,7 +50,7 @@ static irqreturn_t iio_simple_dummy_trigger_h(int irq, void *p)
 	u16 *data;
 
 	data = kmalloc(indio_dev->scan_bytes, GFP_KERNEL);
-	if (data == NULL)
+	if (!data)
 		goto done;
 
 	if (!bitmap_empty(indio_dev->active_scan_mask, indio_dev->masklength)) {
@@ -122,7 +122,7 @@ int iio_simple_dummy_configure_buffer(struct iio_dev *indio_dev)
 
 	/* Allocate a buffer to use - here a kfifo */
 	buffer = iio_kfifo_allocate();
-	if (buffer == NULL) {
+	if (!buffer) {
 		ret = -ENOMEM;
 		goto error_ret;
 	}
@@ -161,7 +161,7 @@ int iio_simple_dummy_configure_buffer(struct iio_dev *indio_dev)
 						 "iio_simple_dummy_consumer%d",
 						 indio_dev->id);
 
-	if (indio_dev->pollfunc == NULL) {
+	if (!indio_dev->pollfunc) {
 		ret = -ENOMEM;
 		goto error_free_buffer;
 	}
diff --git a/drivers/staging/iio/impedance-analyzer/ad5933.c b/drivers/staging/iio/impedance-analyzer/ad5933.c
index 7919439..c18109c 100644
--- a/drivers/staging/iio/impedance-analyzer/ad5933.c
+++ b/drivers/staging/iio/impedance-analyzer/ad5933.c
@@ -703,7 +703,7 @@ static int ad5933_probe(struct i2c_client *client,
 	struct iio_dev *indio_dev;
 
 	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*st));
-	if (indio_dev == NULL)
+	if (!indio_dev)
 		return -ENOMEM;
 
 	st = iio_priv(indio_dev);
diff --git a/drivers/staging/iio/light/isl29028.c b/drivers/staging/iio/light/isl29028.c
index 6440e3b..e5b2fdc 100644
--- a/drivers/staging/iio/light/isl29028.c
+++ b/drivers/staging/iio/light/isl29028.c
@@ -441,15 +441,15 @@ static int isl29028_chip_init(struct isl29028_chip *chip)
 
 	ret = isl29028_set_proxim_sampling(chip, chip->prox_sampling);
 	if (ret < 0) {
-		dev_err(chip->dev, "%s(): setting the proximity, err = %d\n",
-			__func__, ret);
+		dev_err(chip->dev, "setting the proximity, err = %d\n",
+			ret);
 		return ret;
 	}
 
 	ret = isl29028_set_als_scale(chip, chip->lux_scale);
 	if (ret < 0)
-		dev_err(chip->dev, "%s(): setting als scale failed, err = %d\n",
-			__func__, ret);
+		dev_err(chip->dev,
+			"setting als scale failed, err = %d\n", ret);
 	return ret;
 }
 
diff --git a/drivers/staging/iio/light/tsl2583.c b/drivers/staging/iio/light/tsl2583.c
index 8afae8e..b5e1b8b 100644
--- a/drivers/staging/iio/light/tsl2583.c
+++ b/drivers/staging/iio/light/tsl2583.c
@@ -471,14 +471,12 @@ static int taos_chip_on(struct iio_dev *indio_dev)
 static int taos_chip_off(struct iio_dev *indio_dev)
 {
 	struct tsl2583_chip *chip = iio_priv(indio_dev);
-	int ret;
 
 	/* turn device off */
 	chip->taos_chip_status = TSL258X_CHIP_SUSPENDED;
-	ret = i2c_smbus_write_byte_data(chip->client,
+	return i2c_smbus_write_byte_data(chip->client,
 					TSL258X_CMD_REG | TSL258X_CNTRL,
 					0x00);
-	return ret;
 }
 
 /* Sysfs Interface Functions */
diff --git a/drivers/staging/iio/light/tsl2x7x_core.c b/drivers/staging/iio/light/tsl2x7x_core.c
index 4a5dc26..010e607 100644
--- a/drivers/staging/iio/light/tsl2x7x_core.c
+++ b/drivers/staging/iio/light/tsl2x7x_core.c
@@ -301,8 +301,7 @@ tsl2x7x_i2c_read(struct i2c_client *client, u8 reg, u8 *val)
 	/* select register to write */
 	ret = i2c_smbus_write_byte(client, (TSL2X7X_CMD_REG | reg));
 	if (ret < 0) {
-		dev_err(&client->dev, "%s: failed to write register %x\n"
-				, __func__, reg);
+		dev_err(&client->dev, "failed to write register %x\n", reg);
 		return ret;
 	}
 
@@ -311,8 +310,7 @@ tsl2x7x_i2c_read(struct i2c_client *client, u8 reg, u8 *val)
 	if (ret >= 0)
 		*val = (u8)ret;
 	else
-		dev_err(&client->dev, "%s: failed to read register %x\n"
-						, __func__, reg);
+		dev_err(&client->dev, "failed to read register %x\n", reg);
 
 	return ret;
 }
@@ -377,7 +375,7 @@ static int tsl2x7x_get_lux(struct iio_dev *indio_dev)
 			&buf[i]);
 		if (ret < 0) {
 			dev_err(&chip->client->dev,
-				"%s: failed to read. err=%x\n", __func__, ret);
+				"failed to read. err=%x\n", ret);
 			goto out_unlock;
 		}
 	}
@@ -389,8 +387,7 @@ static int tsl2x7x_get_lux(struct iio_dev *indio_dev)
 				TSL2X7X_CMD_ALS_INT_CLR));
 	if (ret < 0) {
 		dev_err(&chip->client->dev,
-		"%s: i2c_write_command failed - err = %d\n",
-			__func__, ret);
+			"i2c_write_command failed - err = %d\n", ret);
 		goto out_unlock; /* have no data, so return failure */
 	}
 
@@ -493,8 +490,7 @@ static int tsl2x7x_get_prox(struct iio_dev *indio_dev)
 	ret = tsl2x7x_i2c_read(chip->client,
 		(TSL2X7X_CMD_REG | TSL2X7X_STATUS), &status);
 	if (ret < 0) {
-		dev_err(&chip->client->dev,
-		"%s: i2c err=%d\n", __func__, ret);
+		dev_err(&chip->client->dev, "i2c err=%d\n", ret);
 		goto prox_poll_err;
 	}
 
@@ -583,8 +579,7 @@ static int tsl2x7x_als_calibrate(struct iio_dev *indio_dev)
 			(TSL2X7X_CMD_REG | TSL2X7X_CNTRL));
 	if (ret < 0) {
 		dev_err(&chip->client->dev,
-		"%s: failed to write CNTRL register, ret=%d\n",
-		__func__, ret);
+			"failed to write CNTRL register, ret=%d\n", ret);
 		return ret;
 	}
 
@@ -600,8 +595,7 @@ static int tsl2x7x_als_calibrate(struct iio_dev *indio_dev)
 			(TSL2X7X_CMD_REG | TSL2X7X_CNTRL));
 	if (ret < 0) {
 		dev_err(&chip->client->dev,
-			"%s: failed to write ctrl reg: ret=%d\n",
-			__func__, ret);
+			"failed to write ctrl reg: ret=%d\n", ret);
 		return ret;
 	}
 
@@ -619,8 +613,8 @@ static int tsl2x7x_als_calibrate(struct iio_dev *indio_dev)
 		return lux_val;
 	}
 
-	gain_trim_val =  (((chip->tsl2x7x_settings.als_cal_target)
-			* chip->tsl2x7x_settings.als_gain_trim) / lux_val);
+	gain_trim_val =  ((chip->tsl2x7x_settings.als_cal_target)
+			* chip->tsl2x7x_settings.als_gain_trim) / lux_val;
 	if ((gain_trim_val < 250) || (gain_trim_val > 4000))
 		return -ERANGE;
 
@@ -720,7 +714,7 @@ static int tsl2x7x_chip_on(struct iio_dev *indio_dev)
 				TSL2X7X_CMD_REG + i, *dev_reg++);
 		if (ret < 0) {
 			dev_err(&chip->client->dev,
-			"%s: failed on write to reg %d.\n", __func__, i);
+				"failed on write to reg %d.\n", i);
 			return ret;
 		}
 	}
@@ -871,8 +865,8 @@ static void tsl2x7x_prox_cal(struct iio_dev *indio_dev)
 
 	if (chip->tsl2x7x_settings.prox_max_samples_cal > MAX_SAMPLES_CAL) {
 		dev_err(&chip->client->dev,
-			"%s: max prox samples cal is too big: %d\n",
-			__func__, chip->tsl2x7x_settings.prox_max_samples_cal);
+			"max prox samples cal is too big: %d\n",
+			chip->tsl2x7x_settings.prox_max_samples_cal);
 		chip->tsl2x7x_settings.prox_max_samples_cal = MAX_SAMPLES_CAL;
 	}
 
@@ -1563,8 +1557,8 @@ static irqreturn_t tsl2x7x_event_handler(int irq, void *private)
 		TSL2X7X_CMD_PROXALS_INT_CLR);
 	if (ret < 0)
 		dev_err(&chip->client->dev,
-			"%s: Failed to clear irq from event handler. err = %d\n",
-			__func__, ret);
+			"Failed to clear irq from event handler. err = %d\n",
+			ret);
 
 	return IRQ_HANDLED;
 }
@@ -1893,8 +1887,8 @@ static int tsl2x7x_probe(struct i2c_client *clientp,
 
 	ret = i2c_smbus_write_byte(clientp, (TSL2X7X_CMD_REG | TSL2X7X_CNTRL));
 	if (ret < 0) {
-		dev_err(&clientp->dev, "%s: write to cmd reg failed. err = %d\n",
-				__func__, ret);
+		dev_err(&clientp->dev, "write to cmd reg failed. err = %d\n",
+			ret);
 		return ret;
 	}
 
diff --git a/drivers/staging/iio/magnetometer/hmc5843.h b/drivers/staging/iio/magnetometer/hmc5843.h
index b784e3e..f3d0da2 100644
--- a/drivers/staging/iio/magnetometer/hmc5843.h
+++ b/drivers/staging/iio/magnetometer/hmc5843.h
@@ -10,7 +10,6 @@
  *
  * */
 
-
 #ifndef HMC5843_CORE_H
 #define HMC5843_CORE_H
 
@@ -32,16 +31,24 @@ enum hmc5843_ids {
 	HMC5983_ID,
 };
 
+/**
+ * struct hcm5843_data	- device specific data
+ * @dev:		actual device
+ * @lock:		update and read regmap data
+ * @regmap:		hardware access register maps
+ * @variant:		describe chip variants
+ * @buffer:		3x 16-bit channels + padding + 64-bit timestamp
+ **/
 struct hmc5843_data {
 	struct device *dev;
 	struct mutex lock;
 	struct regmap *regmap;
 	const struct hmc5843_chip_info *variant;
-	__be16 buffer[8]; /* 3x 16-bit channels + padding + 64-bit timestamp */
+	__be16 buffer[8];
 };
 
 int hmc5843_common_probe(struct device *dev, struct regmap *regmap,
-		enum hmc5843_ids id);
+			 enum hmc5843_ids id);
 int hmc5843_common_remove(struct device *dev);
 
 int hmc5843_common_suspend(struct device *dev);
diff --git a/drivers/staging/iio/magnetometer/hmc5843_core.c b/drivers/staging/iio/magnetometer/hmc5843_core.c
index fd171d8..fffca3a 100644
--- a/drivers/staging/iio/magnetometer/hmc5843_core.c
+++ b/drivers/staging/iio/magnetometer/hmc5843_core.c
@@ -1,25 +1,25 @@
-/*  Copyright (C) 2010 Texas Instruments
-    Author: Shubhrajyoti Datta <shubhrajyoti@ti.com>
-    Acknowledgement: Jonathan Cameron <jic23@kernel.org> for valuable inputs.
-
-    Support for HMC5883 and HMC5883L by Peter Meerwald <pmeerw@pmeerw.net>.
-
-    Split to multiple files by Josef Gajdusek <atx@atx.name> - 2014
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this program; if not, write to the Free Software
-    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-*/
+/*
+ * Device driver for the the HMC5843 multi-chip module designed
+ * for low field magnetic sensing.
+ *
+ * Copyright (C) 2010 Texas Instruments
+ *
+ * Author: Shubhrajyoti Datta <shubhrajyoti@ti.com>
+ * Acknowledgment: Jonathan Cameron <jic23@kernel.org> for valuable inputs.
+ * Support for HMC5883 and HMC5883L by Peter Meerwald <pmeerw@pmeerw.net>.
+ * Split to multiple files by Josef Gajdusek <atx@atx.name> - 2014
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
 
 #include <linux/module.h>
 #include <linux/regmap.h>
@@ -122,7 +122,7 @@ static s32 hmc5843_set_mode(struct hmc5843_data *data, u8 operating_mode)
 
 	mutex_lock(&data->lock);
 	ret = regmap_update_bits(data->regmap, HMC5843_MODE_REG,
-			HMC5843_MODE_MASK, operating_mode);
+				 HMC5843_MODE_MASK, operating_mode);
 	mutex_unlock(&data->lock);
 
 	return ret;
@@ -165,7 +165,7 @@ static int hmc5843_read_measurement(struct hmc5843_data *data,
 		return ret;
 	}
 	ret = regmap_bulk_read(data->regmap, HMC5843_DATA_OUT_MSB_REGS,
-			values, sizeof(values));
+			       values, sizeof(values));
 	mutex_unlock(&data->lock);
 	if (ret < 0)
 		return ret;
@@ -198,15 +198,16 @@ static int hmc5843_set_meas_conf(struct hmc5843_data *data, u8 meas_conf)
 
 	mutex_lock(&data->lock);
 	ret = regmap_update_bits(data->regmap, HMC5843_CONFIG_REG_A,
-			HMC5843_MEAS_CONF_MASK, meas_conf);
+				 HMC5843_MEAS_CONF_MASK, meas_conf);
 	mutex_unlock(&data->lock);
 
 	return ret;
 }
 
-static ssize_t hmc5843_show_measurement_configuration(struct device *dev,
-						struct device_attribute *attr,
-						char *buf)
+static
+ssize_t hmc5843_show_measurement_configuration(struct device *dev,
+					       struct device_attribute *attr,
+					       char *buf)
 {
 	struct hmc5843_data *data = iio_priv(dev_to_iio_dev(dev));
 	unsigned int val;
@@ -220,10 +221,11 @@ static ssize_t hmc5843_show_measurement_configuration(struct device *dev,
 	return sprintf(buf, "%d\n", val);
 }
 
-static ssize_t hmc5843_set_measurement_configuration(struct device *dev,
-						struct device_attribute *attr,
-						const char *buf,
-						size_t count)
+static
+ssize_t hmc5843_set_measurement_configuration(struct device *dev,
+					      struct device_attribute *attr,
+					      const char *buf,
+					      size_t count)
 {
 	struct hmc5843_data *data = iio_priv(dev_to_iio_dev(dev));
 	unsigned long meas_conf = 0;
@@ -246,8 +248,9 @@ static IIO_DEVICE_ATTR(meas_conf,
 			hmc5843_set_measurement_configuration,
 			0);
 
-static ssize_t hmc5843_show_samp_freq_avail(struct device *dev,
-				struct device_attribute *attr, char *buf)
+static
+ssize_t hmc5843_show_samp_freq_avail(struct device *dev,
+				     struct device_attribute *attr, char *buf)
 {
 	struct hmc5843_data *data = iio_priv(dev_to_iio_dev(dev));
 	size_t len = 0;
@@ -272,20 +275,21 @@ static int hmc5843_set_samp_freq(struct hmc5843_data *data, u8 rate)
 
 	mutex_lock(&data->lock);
 	ret = regmap_update_bits(data->regmap, HMC5843_CONFIG_REG_A,
-			HMC5843_RATE_MASK, rate << HMC5843_RATE_OFFSET);
+				 HMC5843_RATE_MASK,
+				 rate << HMC5843_RATE_OFFSET);
 	mutex_unlock(&data->lock);
 
 	return ret;
 }
 
 static int hmc5843_get_samp_freq_index(struct hmc5843_data *data,
-				   int val, int val2)
+				       int val, int val2)
 {
 	int i;
 
 	for (i = 0; i < data->variant->n_regval_to_samp_freq; i++)
 		if (val == data->variant->regval_to_samp_freq[i][0] &&
-			val2 == data->variant->regval_to_samp_freq[i][1])
+		    val2 == data->variant->regval_to_samp_freq[i][1])
 			return i;
 
 	return -EINVAL;
@@ -297,15 +301,16 @@ static int hmc5843_set_range_gain(struct hmc5843_data *data, u8 range)
 
 	mutex_lock(&data->lock);
 	ret = regmap_update_bits(data->regmap, HMC5843_CONFIG_REG_B,
-			HMC5843_RANGE_GAIN_MASK,
-			range << HMC5843_RANGE_GAIN_OFFSET);
+				 HMC5843_RANGE_GAIN_MASK,
+				 range << HMC5843_RANGE_GAIN_OFFSET);
 	mutex_unlock(&data->lock);
 
 	return ret;
 }
 
 static ssize_t hmc5843_show_scale_avail(struct device *dev,
-				struct device_attribute *attr, char *buf)
+					struct device_attribute *attr,
+					char *buf)
 {
 	struct hmc5843_data *data = iio_priv(dev_to_iio_dev(dev));
 
@@ -396,7 +401,8 @@ static int hmc5843_write_raw(struct iio_dev *indio_dev,
 }
 
 static int hmc5843_write_raw_get_fmt(struct iio_dev *indio_dev,
-			       struct iio_chan_spec const *chan, long mask)
+				     struct iio_chan_spec const *chan,
+				     long mask)
 {
 	switch (mask) {
 	case IIO_CHAN_INFO_SAMP_FREQ:
@@ -423,14 +429,14 @@ static irqreturn_t hmc5843_trigger_handler(int irq, void *p)
 	}
 
 	ret = regmap_bulk_read(data->regmap, HMC5843_DATA_OUT_MSB_REGS,
-			data->buffer, 3 * sizeof(__be16));
+			       data->buffer, 3 * sizeof(__be16));
 
 	mutex_unlock(&data->lock);
 	if (ret < 0)
 		goto done;
 
 	iio_push_to_buffers_with_timestamp(indio_dev, data->buffer,
-		iio_get_time_ns());
+					   iio_get_time_ns());
 
 done:
 	iio_trigger_notify_done(indio_dev->trig);
@@ -526,7 +532,7 @@ static int hmc5843_init(struct hmc5843_data *data)
 	u8 id[3];
 
 	ret = regmap_bulk_read(data->regmap, HMC5843_ID_REG,
-			id, ARRAY_SIZE(id));
+			       id, ARRAY_SIZE(id));
 	if (ret < 0)
 		return ret;
 	if (id[0] != 'H' || id[1] != '4' || id[2] != '3') {
@@ -556,7 +562,6 @@ static const struct iio_info hmc5843_info = {
 
 static const unsigned long hmc5843_scan_masks[] = {0x7, 0};
 
-
 int hmc5843_common_suspend(struct device *dev)
 {
 	return hmc5843_set_mode(iio_priv(dev_get_drvdata(dev)),
@@ -567,19 +572,19 @@ EXPORT_SYMBOL(hmc5843_common_suspend);
 int hmc5843_common_resume(struct device *dev)
 {
 	return hmc5843_set_mode(iio_priv(dev_get_drvdata(dev)),
-			HMC5843_MODE_SLEEP);
+				HMC5843_MODE_SLEEP);
 }
 EXPORT_SYMBOL(hmc5843_common_resume);
 
 int hmc5843_common_probe(struct device *dev, struct regmap *regmap,
-		enum hmc5843_ids id)
+			 enum hmc5843_ids id)
 {
 	struct hmc5843_data *data;
 	struct iio_dev *indio_dev;
 	int ret;
 
 	indio_dev = devm_iio_device_alloc(dev, sizeof(*data));
-	if (indio_dev == NULL)
+	if (!indio_dev)
 		return -ENOMEM;
 
 	dev_set_drvdata(dev, indio_dev);
@@ -592,6 +597,7 @@ int hmc5843_common_probe(struct device *dev, struct regmap *regmap,
 	mutex_init(&data->lock);
 
 	indio_dev->dev.parent = dev;
+	indio_dev->name = dev->driver->name;
 	indio_dev->info = &hmc5843_info;
 	indio_dev->modes = INDIO_DIRECT_MODE;
 	indio_dev->channels = data->variant->channels;
@@ -603,9 +609,9 @@ int hmc5843_common_probe(struct device *dev, struct regmap *regmap,
 		return ret;
 
 	ret = iio_triggered_buffer_setup(indio_dev, NULL,
-		hmc5843_trigger_handler, NULL);
+					 hmc5843_trigger_handler, NULL);
 	if (ret < 0)
-		return ret;
+		goto buffer_setup_err;
 
 	ret = iio_device_register(indio_dev);
 	if (ret < 0)
@@ -615,6 +621,8 @@ int hmc5843_common_probe(struct device *dev, struct regmap *regmap,
 
 buffer_cleanup:
 	iio_triggered_buffer_cleanup(indio_dev);
+buffer_setup_err:
+	hmc5843_set_mode(iio_priv(indio_dev), HMC5843_MODE_SLEEP);
 	return ret;
 }
 EXPORT_SYMBOL(hmc5843_common_probe);
diff --git a/drivers/staging/iio/magnetometer/hmc5843_i2c.c b/drivers/staging/iio/magnetometer/hmc5843_i2c.c
index 6acd614..ff08667 100644
--- a/drivers/staging/iio/magnetometer/hmc5843_i2c.c
+++ b/drivers/staging/iio/magnetometer/hmc5843_i2c.c
@@ -19,48 +19,48 @@
 #include "hmc5843.h"
 
 static const struct regmap_range hmc5843_readable_ranges[] = {
-		regmap_reg_range(0, HMC5843_ID_END),
+	regmap_reg_range(0, HMC5843_ID_END),
 };
 
-static struct regmap_access_table hmc5843_readable_table = {
-		.yes_ranges = hmc5843_readable_ranges,
-		.n_yes_ranges = ARRAY_SIZE(hmc5843_readable_ranges),
+static const struct regmap_access_table hmc5843_readable_table = {
+	.yes_ranges = hmc5843_readable_ranges,
+	.n_yes_ranges = ARRAY_SIZE(hmc5843_readable_ranges),
 };
 
 static const struct regmap_range hmc5843_writable_ranges[] = {
-		regmap_reg_range(0, HMC5843_MODE_REG),
+	regmap_reg_range(0, HMC5843_MODE_REG),
 };
 
-static struct regmap_access_table hmc5843_writable_table = {
-		.yes_ranges = hmc5843_writable_ranges,
-		.n_yes_ranges = ARRAY_SIZE(hmc5843_writable_ranges),
+static const struct regmap_access_table hmc5843_writable_table = {
+	.yes_ranges = hmc5843_writable_ranges,
+	.n_yes_ranges = ARRAY_SIZE(hmc5843_writable_ranges),
 };
 
 static const struct regmap_range hmc5843_volatile_ranges[] = {
-		regmap_reg_range(HMC5843_DATA_OUT_MSB_REGS, HMC5843_STATUS_REG),
+	regmap_reg_range(HMC5843_DATA_OUT_MSB_REGS, HMC5843_STATUS_REG),
 };
 
-static struct regmap_access_table hmc5843_volatile_table = {
-		.yes_ranges = hmc5843_volatile_ranges,
-		.n_yes_ranges = ARRAY_SIZE(hmc5843_volatile_ranges),
+static const struct regmap_access_table hmc5843_volatile_table = {
+	.yes_ranges = hmc5843_volatile_ranges,
+	.n_yes_ranges = ARRAY_SIZE(hmc5843_volatile_ranges),
 };
 
-static struct regmap_config hmc5843_i2c_regmap_config = {
-		.reg_bits = 8,
-		.val_bits = 8,
+static const struct regmap_config hmc5843_i2c_regmap_config = {
+	.reg_bits = 8,
+	.val_bits = 8,
 
-		.rd_table = &hmc5843_readable_table,
-		.wr_table = &hmc5843_writable_table,
-		.volatile_table = &hmc5843_volatile_table,
+	.rd_table = &hmc5843_readable_table,
+	.wr_table = &hmc5843_writable_table,
+	.volatile_table = &hmc5843_volatile_table,
 
-		.cache_type = REGCACHE_RBTREE,
+	.cache_type = REGCACHE_RBTREE,
 };
 
-static int hmc5843_i2c_probe(struct i2c_client *client,
-			 const struct i2c_device_id *id)
+static int hmc5843_i2c_probe(struct i2c_client *cli,
+			     const struct i2c_device_id *id)
 {
-	return hmc5843_common_probe(&client->dev,
-			devm_regmap_init_i2c(client, &hmc5843_i2c_regmap_config),
+	return hmc5843_common_probe(&cli->dev,
+			devm_regmap_init_i2c(cli, &hmc5843_i2c_regmap_config),
 			id->driver_data);
 }
 
diff --git a/drivers/staging/iio/magnetometer/hmc5843_spi.c b/drivers/staging/iio/magnetometer/hmc5843_spi.c
index 98c4b57..8e658f7 100644
--- a/drivers/staging/iio/magnetometer/hmc5843_spi.c
+++ b/drivers/staging/iio/magnetometer/hmc5843_spi.c
@@ -19,7 +19,7 @@ static const struct regmap_range hmc5843_readable_ranges[] = {
 		regmap_reg_range(0, HMC5843_ID_END),
 };
 
-static struct regmap_access_table hmc5843_readable_table = {
+static const struct regmap_access_table hmc5843_readable_table = {
 		.yes_ranges = hmc5843_readable_ranges,
 		.n_yes_ranges = ARRAY_SIZE(hmc5843_readable_ranges),
 };
@@ -28,7 +28,7 @@ static const struct regmap_range hmc5843_writable_ranges[] = {
 		regmap_reg_range(0, HMC5843_MODE_REG),
 };
 
-static struct regmap_access_table hmc5843_writable_table = {
+static const struct regmap_access_table hmc5843_writable_table = {
 		.yes_ranges = hmc5843_writable_ranges,
 		.n_yes_ranges = ARRAY_SIZE(hmc5843_writable_ranges),
 };
@@ -37,12 +37,12 @@ static const struct regmap_range hmc5843_volatile_ranges[] = {
 		regmap_reg_range(HMC5843_DATA_OUT_MSB_REGS, HMC5843_STATUS_REG),
 };
 
-static struct regmap_access_table hmc5843_volatile_table = {
+static const struct regmap_access_table hmc5843_volatile_table = {
 		.yes_ranges = hmc5843_volatile_ranges,
 		.n_yes_ranges = ARRAY_SIZE(hmc5843_volatile_ranges),
 };
 
-static struct regmap_config hmc5843_spi_regmap_config = {
+static const struct regmap_config hmc5843_spi_regmap_config = {
 		.reg_bits = 8,
 		.val_bits = 8,
 
diff --git a/drivers/staging/iio/meter/ade7753.c b/drivers/staging/iio/meter/ade7753.c
index 78e8f56..ffc7f0d 100644
--- a/drivers/staging/iio/meter/ade7753.c
+++ b/drivers/staging/iio/meter/ade7753.c
@@ -411,7 +411,7 @@ static ssize_t ade7753_write_frequency(struct device *dev,
 
 	mutex_lock(&indio_dev->mlock);
 
-	t = (27900 / val);
+	t = 27900 / val;
 	if (t > 0)
 		t--;
 
@@ -517,11 +517,7 @@ static int ade7753_probe(struct spi_device *spi)
 	if (ret)
 		return ret;
 
-	ret = iio_device_register(indio_dev);
-	if (ret)
-		return ret;
-
-	return 0;
+	return iio_device_register(indio_dev);
 }
 
 /* fixme, confirm ordering in this function */
diff --git a/drivers/staging/iio/meter/ade7754.c b/drivers/staging/iio/meter/ade7754.c
index 81f6731..f12b2e5 100644
--- a/drivers/staging/iio/meter/ade7754.c
+++ b/drivers/staging/iio/meter/ade7754.c
@@ -216,9 +216,13 @@ error_ret:
 
 static int ade7754_reset(struct device *dev)
 {
+	int ret;
 	u8 val;
 
-	ade7754_spi_read_reg_8(dev, ADE7754_OPMODE, &val);
+	ret = ade7754_spi_read_reg_8(dev, ADE7754_OPMODE, &val);
+	if (ret < 0)
+		return ret;
+
 	val |= 1 << 6; /* Software Chip Reset */
 	return ade7754_spi_write_reg_8(dev, ADE7754_OPMODE, val);
 }
@@ -362,9 +366,16 @@ error_ret:
 /* Power down the device */
 static int ade7754_stop_device(struct device *dev)
 {
+	int ret;
 	u8 val;
 
-	ade7754_spi_read_reg_8(dev, ADE7754_OPMODE, &val);
+	ret = ade7754_spi_read_reg_8(dev, ADE7754_OPMODE, &val);
+	if (ret < 0) {
+		dev_err(dev, "unable to power down the device, error: %d",
+			ret);
+		return ret;
+	}
+
 	val |= 7 << 3;  /* ADE7754 powered down */
 	return ade7754_spi_write_reg_8(dev, ADE7754_OPMODE, val);
 }
@@ -432,7 +443,7 @@ static ssize_t ade7754_write_frequency(struct device *dev,
 
 	mutex_lock(&indio_dev->mlock);
 
-	t = (26000 / val);
+	t = 26000 / val;
 	if (t > 0)
 		t--;
 
@@ -539,12 +550,15 @@ static int ade7754_probe(struct spi_device *spi)
 	/* Get the device into a sane initial state */
 	ret = ade7754_initial_setup(indio_dev);
 	if (ret)
-		return ret;
+		goto powerdown_on_error;
 	ret = iio_device_register(indio_dev);
 	if (ret)
-		return ret;
+		goto powerdown_on_error;
+	return ret;
 
-	return 0;
+powerdown_on_error:
+	ade7754_stop_device(&indio_dev->dev);
+	return ret;
 }
 
 /* fixme, confirm ordering in this function */
diff --git a/drivers/staging/iio/meter/ade7758_core.c b/drivers/staging/iio/meter/ade7758_core.c
index 70e96b2..77141ae 100644
--- a/drivers/staging/iio/meter/ade7758_core.c
+++ b/drivers/staging/iio/meter/ade7758_core.c
@@ -303,14 +303,15 @@ static int ade7758_reset(struct device *dev)
 	int ret;
 	u8 val;
 
-	ade7758_spi_read_reg_8(dev,
-			ADE7758_OPMODE,
-			&val);
+	ret = ade7758_spi_read_reg_8(dev, ADE7758_OPMODE, &val);
+	if (ret < 0) {
+		dev_err(dev, "Failed to read opmode reg\n");
+		return ret;
+	}
 	val |= 1 << 6; /* Software Chip Reset */
-	ret = ade7758_spi_write_reg_8(dev,
-			ADE7758_OPMODE,
-			val);
-
+	ret = ade7758_spi_write_reg_8(dev, ADE7758_OPMODE, val);
+	if (ret < 0)
+		dev_err(dev, "Failed to write opmode reg\n");
 	return ret;
 }
 
@@ -444,14 +445,15 @@ static int ade7758_stop_device(struct device *dev)
 	int ret;
 	u8 val;
 
-	ade7758_spi_read_reg_8(dev,
-			ADE7758_OPMODE,
-			&val);
+	ret = ade7758_spi_read_reg_8(dev, ADE7758_OPMODE, &val);
+	if (ret < 0) {
+		dev_err(dev, "Failed to read opmode reg\n");
+		return ret;
+	}
 	val |= 7 << 3;  /* ADE7758 powered down */
-	ret = ade7758_spi_write_reg_8(dev,
-			ADE7758_OPMODE,
-			val);
-
+	ret = ade7758_spi_write_reg_8(dev, ADE7758_OPMODE, val);
+	if (ret < 0)
+		dev_err(dev, "Failed to write opmode reg\n");
 	return ret;
 }
 
@@ -483,7 +485,7 @@ static ssize_t ade7758_read_frequency(struct device *dev,
 		struct device_attribute *attr,
 		char *buf)
 {
-	int ret, len = 0;
+	int ret;
 	u8 t;
 	int sps;
 
@@ -496,8 +498,7 @@ static ssize_t ade7758_read_frequency(struct device *dev,
 	t = (t >> 5) & 0x3;
 	sps = 26040 / (1 << t);
 
-	len = sprintf(buf, "%d SPS\n", sps);
-	return len;
+	return sprintf(buf, "%d SPS\n", sps);
 }
 
 static ssize_t ade7758_write_frequency(struct device *dev,
@@ -832,7 +833,7 @@ static int ade7758_probe(struct spi_device *spi)
 	if (!st->rx)
 		return -ENOMEM;
 	st->tx = kcalloc(ADE7758_MAX_TX, sizeof(*st->tx), GFP_KERNEL);
-	if (st->tx == NULL) {
+	if (!st->tx) {
 		ret = -ENOMEM;
 		goto error_free_rx;
 	}
diff --git a/drivers/staging/iio/meter/ade7758_ring.c b/drivers/staging/iio/meter/ade7758_ring.c
index 3792b57..9a24e02 100644
--- a/drivers/staging/iio/meter/ade7758_ring.c
+++ b/drivers/staging/iio/meter/ade7758_ring.c
@@ -119,10 +119,8 @@ int ade7758_configure_ring(struct iio_dev *indio_dev)
 	int ret = 0;
 
 	buffer = iio_kfifo_allocate();
-	if (!buffer) {
-		ret = -ENOMEM;
-		return ret;
-	}
+	if (!buffer)
+		return -ENOMEM;
 
 	iio_device_attach_buffer(indio_dev, buffer);
 
@@ -134,7 +132,7 @@ int ade7758_configure_ring(struct iio_dev *indio_dev)
 						 indio_dev,
 						 "ade7759_consumer%d",
 						 indio_dev->id);
-	if (indio_dev->pollfunc == NULL) {
+	if (!indio_dev->pollfunc) {
 		ret = -ENOMEM;
 		goto error_iio_kfifo_free;
 	}
diff --git a/drivers/staging/iio/meter/ade7758_trigger.c b/drivers/staging/iio/meter/ade7758_trigger.c
index 6f45ce0..5b35a7f 100644
--- a/drivers/staging/iio/meter/ade7758_trigger.c
+++ b/drivers/staging/iio/meter/ade7758_trigger.c
@@ -66,7 +66,7 @@ int ade7758_probe_trigger(struct iio_dev *indio_dev)
 	st->trig = iio_trigger_alloc("%s-dev%d",
 					spi_get_device_id(st->us)->name,
 					indio_dev->id);
-	if (st->trig == NULL) {
+	if (!st->trig) {
 		ret = -ENOMEM;
 		goto error_ret;
 	}
diff --git a/drivers/staging/iio/meter/ade7759.c b/drivers/staging/iio/meter/ade7759.c
index b0c7dbc..dbceda1 100644
--- a/drivers/staging/iio/meter/ade7759.c
+++ b/drivers/staging/iio/meter/ade7759.c
@@ -218,15 +218,16 @@ static int ade7759_reset(struct device *dev)
 	int ret;
 	u16 val;
 
-	ade7759_spi_read_reg_16(dev,
+	ret = ade7759_spi_read_reg_16(dev,
 			ADE7759_MODE,
 			&val);
+	if (ret < 0)
+		return ret;
+
 	val |= 1 << 6; /* Software Chip Reset */
-	ret = ade7759_spi_write_reg_16(dev,
+	return ade7759_spi_write_reg_16(dev,
 			ADE7759_MODE,
 			val);
-
-	return ret;
 }
 
 static IIO_DEV_ATTR_AENERGY(ade7759_read_40bit, ADE7759_AENERGY);
@@ -301,11 +302,18 @@ error_ret:
 /* Power down the device */
 static int ade7759_stop_device(struct device *dev)
 {
+	int ret;
 	u16 val;
 
-	ade7759_spi_read_reg_16(dev,
+	ret = ade7759_spi_read_reg_16(dev,
 			ADE7759_MODE,
 			&val);
+	if (ret < 0) {
+		dev_err(dev, "unable to power down the device, error: %d\n",
+			ret);
+		return ret;
+	}
+
 	val |= 1 << 4;  /* AD converters can be turned off */
 
 	return ade7759_spi_write_reg_16(dev, ADE7759_MODE, val);
@@ -374,7 +382,7 @@ static ssize_t ade7759_write_frequency(struct device *dev,
 
 	mutex_lock(&indio_dev->mlock);
 
-	t = (27900 / val);
+	t = 27900 / val;
 	if (t > 0)
 		t--;
 
@@ -465,11 +473,7 @@ static int ade7759_probe(struct spi_device *spi)
 	if (ret)
 		return ret;
 
-	ret = iio_device_register(indio_dev);
-	if (ret)
-		return ret;
-
-	return 0;
+	return iio_device_register(indio_dev);
 }
 
 /* fixme, confirm ordering in this function */
diff --git a/drivers/staging/iio/meter/ade7854-i2c.c b/drivers/staging/iio/meter/ade7854-i2c.c
index 5b33c7f..07cfe28 100644
--- a/drivers/staging/iio/meter/ade7854-i2c.c
+++ b/drivers/staging/iio/meter/ade7854-i2c.c
@@ -16,8 +16,8 @@
 #include "ade7854.h"
 
 static int ade7854_i2c_write_reg_8(struct device *dev,
-		u16 reg_address,
-		u8 value)
+				   u16 reg_address,
+				   u8 value)
 {
 	int ret;
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
@@ -35,8 +35,8 @@ static int ade7854_i2c_write_reg_8(struct device *dev,
 }
 
 static int ade7854_i2c_write_reg_16(struct device *dev,
-		u16 reg_address,
-		u16 value)
+				    u16 reg_address,
+				    u16 value)
 {
 	int ret;
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
@@ -55,8 +55,8 @@ static int ade7854_i2c_write_reg_16(struct device *dev,
 }
 
 static int ade7854_i2c_write_reg_24(struct device *dev,
-		u16 reg_address,
-		u32 value)
+				    u16 reg_address,
+				    u32 value)
 {
 	int ret;
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
@@ -76,8 +76,8 @@ static int ade7854_i2c_write_reg_24(struct device *dev,
 }
 
 static int ade7854_i2c_write_reg_32(struct device *dev,
-		u16 reg_address,
-		u32 value)
+				    u16 reg_address,
+				    u32 value)
 {
 	int ret;
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
@@ -98,8 +98,8 @@ static int ade7854_i2c_write_reg_32(struct device *dev,
 }
 
 static int ade7854_i2c_read_reg_8(struct device *dev,
-		u16 reg_address,
-		u8 *val)
+				  u16 reg_address,
+				  u8 *val)
 {
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct ade7854_state *st = iio_priv(indio_dev);
@@ -124,8 +124,8 @@ out:
 }
 
 static int ade7854_i2c_read_reg_16(struct device *dev,
-		u16 reg_address,
-		u16 *val)
+				   u16 reg_address,
+				   u16 *val)
 {
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct ade7854_state *st = iio_priv(indio_dev);
@@ -150,8 +150,8 @@ out:
 }
 
 static int ade7854_i2c_read_reg_24(struct device *dev,
-		u16 reg_address,
-		u32 *val)
+				   u16 reg_address,
+				   u32 *val)
 {
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct ade7854_state *st = iio_priv(indio_dev);
@@ -176,8 +176,8 @@ out:
 }
 
 static int ade7854_i2c_read_reg_32(struct device *dev,
-		u16 reg_address,
-		u32 *val)
+				   u16 reg_address,
+				   u32 *val)
 {
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct ade7854_state *st = iio_priv(indio_dev);
@@ -195,21 +195,21 @@ static int ade7854_i2c_read_reg_32(struct device *dev,
 	if (ret)
 		goto out;
 
-	*val = (st->rx[0] << 24) | (st->rx[1] << 16) | (st->rx[2] << 8) | st->rx[3];
+	*val = (st->rx[0] << 24) | (st->rx[1] << 16) |
+		(st->rx[2] << 8) | st->rx[3];
 out:
 	mutex_unlock(&st->buf_lock);
 	return ret;
 }
 
 static int ade7854_i2c_probe(struct i2c_client *client,
-		const struct i2c_device_id *id)
+			     const struct i2c_device_id *id)
 {
-	int ret;
 	struct ade7854_state *st;
 	struct iio_dev *indio_dev;
 
 	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*st));
-	if (indio_dev == NULL)
+	if (!indio_dev)
 		return -ENOMEM;
 	st = iio_priv(indio_dev);
 	i2c_set_clientdata(client, indio_dev);
@@ -224,9 +224,7 @@ static int ade7854_i2c_probe(struct i2c_client *client,
 	st->i2c = client;
 	st->irq = client->irq;
 
-	ret = ade7854_probe(indio_dev, &client->dev);
-
-	return ret;
+	return ade7854_probe(indio_dev, &client->dev);
 }
 
 static int ade7854_i2c_remove(struct i2c_client *client)
diff --git a/drivers/staging/iio/meter/ade7854-spi.c b/drivers/staging/iio/meter/ade7854-spi.c
index 94f73bb..9b255a5 100644
--- a/drivers/staging/iio/meter/ade7854-spi.c
+++ b/drivers/staging/iio/meter/ade7854-spi.c
@@ -274,7 +274,6 @@ error_ret:
 
 static int ade7854_spi_probe(struct spi_device *spi)
 {
-	int ret;
 	struct ade7854_state *st;
 	struct iio_dev *indio_dev;
 
@@ -294,10 +293,7 @@ static int ade7854_spi_probe(struct spi_device *spi)
 	st->irq = spi->irq;
 	st->spi = spi;
 
-
-	ret = ade7854_probe(indio_dev, &spi->dev);
-
-	return ret;
+	return ade7854_probe(indio_dev, &spi->dev);
 }
 
 static int ade7854_spi_remove(struct spi_device *spi)
diff --git a/drivers/staging/iio/meter/meter.h b/drivers/staging/iio/meter/meter.h
index 8f0de02..dfba510 100644
--- a/drivers/staging/iio/meter/meter.h
+++ b/drivers/staging/iio/meter/meter.h
@@ -1,3 +1,6 @@
+#ifndef _METER_H
+#define _METER_H
+
 #include <linux/iio/sysfs.h>
 
 /* metering ic types of attribute */
@@ -394,3 +397,4 @@
 #define IIO_EVENT_ATTR_VPKLVL_EXC(_evlist, _show, _store, _mask) \
 	IIO_EVENT_ATTR_SH(vpklvl_exc, _evlist, _show, _store, _mask)
 
+#endif /* _METER_H */
diff --git a/drivers/staging/iio/resolver/ad2s1200.c b/drivers/staging/iio/resolver/ad2s1200.c
index 017d2f8..c17893b 100644
--- a/drivers/staging/iio/resolver/ad2s1200.c
+++ b/drivers/staging/iio/resolver/ad2s1200.c
@@ -18,6 +18,7 @@
 #include <linux/delay.h>
 #include <linux/gpio.h>
 #include <linux/module.h>
+#include <linux/bitops.h>
 
 #include <linux/iio/iio.h>
 #include <linux/iio/sysfs.h>
@@ -68,7 +69,7 @@ static int ad2s1200_read_raw(struct iio_dev *indio_dev,
 		break;
 	case IIO_ANGL_VEL:
 		vel = (((s16)(st->rx[0])) << 4) | ((st->rx[1] & 0xF0) >> 4);
-		vel = (vel << 4) >> 4;
+		vel = sign_extend32(vel, 11);
 		*val = vel;
 		break;
 	default:
diff --git a/drivers/staging/iio/resolver/ad2s1210.c b/drivers/staging/iio/resolver/ad2s1210.c
index b4c14ba..7bc3e4a 100644
--- a/drivers/staging/iio/resolver/ad2s1210.c
+++ b/drivers/staging/iio/resolver/ad2s1210.c
@@ -151,7 +151,7 @@ int ad2s1210_update_frequency_control_word(struct ad2s1210_state *st)
 
 	fcw = (unsigned char)(st->fexcit * (1 << 15) / st->fclkin);
 	if (fcw < AD2S1210_MIN_FCW || fcw > AD2S1210_MAX_FCW) {
-		pr_err("ad2s1210: FCW out of range\n");
+		dev_err(&st->sdev->dev, "ad2s1210: FCW out of range\n");
 		return -ERANGE;
 	}
 
@@ -198,7 +198,7 @@ static ssize_t ad2s1210_show_fclkin(struct device *dev,
 {
 	struct ad2s1210_state *st = iio_priv(dev_to_iio_dev(dev));
 
-	return sprintf(buf, "%d\n", st->fclkin);
+	return sprintf(buf, "%u\n", st->fclkin);
 }
 
 static ssize_t ad2s1210_store_fclkin(struct device *dev,
@@ -214,7 +214,7 @@ static ssize_t ad2s1210_store_fclkin(struct device *dev,
 	if (ret)
 		return ret;
 	if (fclkin < AD2S1210_MIN_CLKIN || fclkin > AD2S1210_MAX_CLKIN) {
-		pr_err("ad2s1210: fclkin out of range\n");
+		dev_err(dev, "ad2s1210: fclkin out of range\n");
 		return -EINVAL;
 	}
 
@@ -237,7 +237,7 @@ static ssize_t ad2s1210_show_fexcit(struct device *dev,
 {
 	struct ad2s1210_state *st = iio_priv(dev_to_iio_dev(dev));
 
-	return sprintf(buf, "%d\n", st->fexcit);
+	return sprintf(buf, "%u\n", st->fexcit);
 }
 
 static ssize_t ad2s1210_store_fexcit(struct device *dev,
@@ -252,7 +252,8 @@ static ssize_t ad2s1210_store_fexcit(struct device *dev,
 	if (ret < 0)
 		return ret;
 	if (fexcit < AD2S1210_MIN_EXCIT || fexcit > AD2S1210_MAX_EXCIT) {
-		pr_err("ad2s1210: excitation frequency out of range\n");
+		dev_err(dev,
+			"ad2s1210: excitation frequency out of range\n");
 		return -EINVAL;
 	}
 	mutex_lock(&st->lock);
@@ -307,7 +308,8 @@ static ssize_t ad2s1210_store_control(struct device *dev,
 		goto error_ret;
 	if (ret & AD2S1210_MSB_IS_HIGH) {
 		ret = -EIO;
-		pr_err("ad2s1210: write control register fail\n");
+		dev_err(dev,
+			"ad2s1210: write control register fail\n");
 		goto error_ret;
 	}
 	st->resolution
@@ -315,7 +317,7 @@ static ssize_t ad2s1210_store_control(struct device *dev,
 	if (st->pdata->gpioin) {
 		data = ad2s1210_read_resolution_pin(st);
 		if (data != st->resolution)
-			pr_warn("ad2s1210: resolution settings not match\n");
+			dev_warn(dev, "ad2s1210: resolution settings not match\n");
 	} else
 		ad2s1210_set_resolution_pin(st);
 
@@ -346,7 +348,7 @@ static ssize_t ad2s1210_store_resolution(struct device *dev,
 
 	ret = kstrtou8(buf, 10, &udata);
 	if (ret || udata < 10 || udata > 16) {
-		pr_err("ad2s1210: resolution out of range\n");
+		dev_err(dev, "ad2s1210: resolution out of range\n");
 		return -EINVAL;
 	}
 	mutex_lock(&st->lock);
@@ -368,7 +370,7 @@ static ssize_t ad2s1210_store_resolution(struct device *dev,
 	data = ret;
 	if (data & AD2S1210_MSB_IS_HIGH) {
 		ret = -EIO;
-		pr_err("ad2s1210: setting resolution fail\n");
+		dev_err(dev, "ad2s1210: setting resolution fail\n");
 		goto error_ret;
 	}
 	st->resolution
@@ -376,7 +378,7 @@ static ssize_t ad2s1210_store_resolution(struct device *dev,
 	if (st->pdata->gpioin) {
 		data = ad2s1210_read_resolution_pin(st);
 		if (data != st->resolution)
-			pr_warn("ad2s1210: resolution settings not match\n");
+			dev_warn(dev, "ad2s1210: resolution settings not match\n");
 	} else
 		ad2s1210_set_resolution_pin(st);
 	ret = len;
diff --git a/drivers/staging/iio/resolver/ad2s1210.h b/drivers/staging/iio/resolver/ad2s1210.h
index aec0bdca..c7158f6 100644
--- a/drivers/staging/iio/resolver/ad2s1210.h
+++ b/drivers/staging/iio/resolver/ad2s1210.h
@@ -8,6 +8,8 @@
  * it under the terms of the GNU General Public License version 2 as
  * published by the Free Software Foundation.
  */
+#ifndef _AD2S1210_H
+#define _AD2S1210_H
 
 struct ad2s1210_platform_data {
 	unsigned sample;
@@ -15,3 +17,4 @@ struct ad2s1210_platform_data {
 	unsigned res[2];
 	bool gpioin;
 };
+#endif /* _AD2S1210_H */
diff --git a/drivers/staging/iio/trigger/iio-trig-bfin-timer.c b/drivers/staging/iio/trigger/iio-trig-bfin-timer.c
index 2af8d67..3c1c8c6 100644
--- a/drivers/staging/iio/trigger/iio-trig-bfin-timer.c
+++ b/drivers/staging/iio/trigger/iio-trig-bfin-timer.c
@@ -183,7 +183,7 @@ static int iio_bfin_tmr_trigger_probe(struct platform_device *pdev)
 	int ret;
 
 	st = devm_kzalloc(&pdev->dev, sizeof(*st), GFP_KERNEL);
-	if (st == NULL)
+	if (!st)
 		return -ENOMEM;
 
 	st->irq = platform_get_irq(pdev, 0);
diff --git a/drivers/staging/iio/trigger/iio-trig-periodic-rtc.c b/drivers/staging/iio/trigger/iio-trig-periodic-rtc.c
index a24caf7..0c1976d 100644
--- a/drivers/staging/iio/trigger/iio-trig-periodic-rtc.c
+++ b/drivers/staging/iio/trigger/iio-trig-periodic-rtc.c
@@ -24,7 +24,7 @@ static DEFINE_MUTEX(iio_prtc_trigger_list_lock);
 
 struct iio_prtc_trigger_info {
 	struct rtc_device *rtc;
-	int frequency;
+	unsigned int frequency;
 	struct rtc_task task;
 	bool state;
 };
@@ -36,7 +36,7 @@ static int iio_trig_periodic_rtc_set_state(struct iio_trigger *trig, bool state)
 
 	if (trig_info->frequency == 0 && state)
 		return -EINVAL;
-	dev_dbg(&trig_info->rtc->dev, "trigger frequency is %d\n",
+	dev_dbg(&trig_info->rtc->dev, "trigger frequency is %u\n",
 			trig_info->frequency);
 	ret = rtc_irq_set_state(trig_info->rtc, &trig_info->task, state);
 	if (ret == 0)
@@ -62,10 +62,10 @@ static ssize_t iio_trig_periodic_write_freq(struct device *dev,
 {
 	struct iio_trigger *trig = to_iio_trigger(dev);
 	struct iio_prtc_trigger_info *trig_info = iio_trigger_get_drvdata(trig);
-	int val;
+	unsigned int val;
 	int ret;
 
-	ret = kstrtoint(buf, 10, &val);
+	ret = kstrtouint(buf, 10, &val);
 	if (ret)
 		goto error_ret;
 
@@ -74,10 +74,8 @@ static ssize_t iio_trig_periodic_write_freq(struct device *dev,
 		if (ret == 0 && trig_info->state && trig_info->frequency == 0)
 			ret = rtc_irq_set_state(trig_info->rtc,
 						&trig_info->task, 1);
-	} else if (val == 0) {
-		ret = rtc_irq_set_state(trig_info->rtc, &trig_info->task, 0);
 	} else
-		ret = -EINVAL;
+		ret = rtc_irq_set_state(trig_info->rtc, &trig_info->task, 0);
 	if (ret)
 		goto error_ret;
 
@@ -126,7 +124,7 @@ static int iio_trig_periodic_rtc_probe(struct platform_device *dev)
 	int i, ret;
 
 	for (i = 0;; i++) {
-		if (pdata[i] == NULL)
+		if (!pdata[i])
 			break;
 		trig = iio_trigger_alloc("periodic%s", pdata[i]);
 		if (!trig) {
@@ -144,7 +142,7 @@ static int iio_trig_periodic_rtc_probe(struct platform_device *dev)
 		trig->ops = &iio_prtc_trigger_ops;
 		/* RTC access */
 		trig_info->rtc = rtc_class_open(pdata[i]);
-		if (trig_info->rtc == NULL) {
+		if (!trig_info->rtc) {
 			ret = -EINVAL;
 			goto error_free_trig_info;
 		}
diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_debug.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_debug.h
index 2e5a9e5..8251ac9 100644
--- a/drivers/staging/lustre/include/linux/libcfs/libcfs_debug.h
+++ b/drivers/staging/lustre/include/linux/libcfs/libcfs_debug.h
@@ -196,7 +196,7 @@ do {								\
 	       .msg_fn     = __func__,				\
 	       .msg_line   = __LINE__,				\
 	       .msg_cdls   = (cdls)	 };			\
-	dataname.msg_mask   = (mask);
+	dataname.msg_mask   = (mask)
 
 /**
  * Filters out logging messages based on mask and subsystem.
@@ -244,12 +244,12 @@ do {									\
 
 int libcfs_debug_msg(struct libcfs_debug_msg_data *msgdata,
 			    const char *format1, ...)
-	__attribute__ ((format (printf, 2, 3)));
+	__printf(2, 3);
 
 int libcfs_debug_vmsg2(struct libcfs_debug_msg_data *msgdata,
 			      const char *format1,
 			      va_list args, const char *format2, ...)
-	__attribute__ ((format (printf, 4, 5)));
+	__printf(4, 5);
 
 /* other external symbols that tracefile provides: */
 int cfs_trace_copyin_string(char *knl_buffer, int knl_buffer_nob,
diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_hash.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_hash.h
index 808e494..c408145 100644
--- a/drivers/staging/lustre/include/linux/libcfs/libcfs_hash.h
+++ b/drivers/staging/lustre/include/linux/libcfs/libcfs_hash.h
@@ -469,7 +469,7 @@ cfs_hash_key(struct cfs_hash *hs, struct hlist_node *hnode)
 static inline void
 cfs_hash_keycpy(struct cfs_hash *hs, struct hlist_node *hnode, void *key)
 {
-        if (hs->hs_ops->hs_keycpy)
+	if (hs->hs_ops->hs_keycpy)
 		hs->hs_ops->hs_keycpy(hnode, key);
 }
 
@@ -785,8 +785,8 @@ static inline void __cfs_hash_set_theta(struct cfs_hash *hs, int min, int max)
 
 /* Generic debug formatting routines mainly for proc handler */
 struct seq_file;
-int cfs_hash_debug_header(struct seq_file *m);
-int cfs_hash_debug_str(struct cfs_hash *hs, struct seq_file *m);
+void cfs_hash_debug_header(struct seq_file *m);
+void cfs_hash_debug_str(struct cfs_hash *hs, struct seq_file *m);
 
 /*
  * Generic djb2 hash algorithm for character arrays.
diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_kernelcomm.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_kernelcomm.h
index f19a121..a989d26 100644
--- a/drivers/staging/lustre/include/linux/libcfs/libcfs_kernelcomm.h
+++ b/drivers/staging/lustre/include/linux/libcfs/libcfs_kernelcomm.h
@@ -58,7 +58,7 @@ struct kuc_hdr {
 	__u8  kuc_flags;
 	__u16 kuc_msgtype;    /* Message type or opcode, transport-specific */
 	__u16 kuc_msglen;     /* Including header */
-} __attribute__((aligned(sizeof(__u64))));
+} __aligned(sizeof(__u64));
 
 #define KUC_CHANGELOG_MSG_MAXSIZE (sizeof(struct kuc_hdr)+CR_MAXSIZE)
 
@@ -107,7 +107,7 @@ typedef struct lustre_kernelcomm {
 	__u32 lk_group;
 	__u32 lk_data;
 	__u32 lk_flags;
-} __attribute__((packed)) lustre_kernelcomm;
+} __packed lustre_kernelcomm;
 
 /* Userspace methods */
 int libcfs_ukuc_start(lustre_kernelcomm *l, int groups);
diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_private.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_private.h
index 3d86fb5..fef8825 100644
--- a/drivers/staging/lustre/include/linux/libcfs/libcfs_private.h
+++ b/drivers/staging/lustre/include/linux/libcfs/libcfs_private.h
@@ -335,8 +335,8 @@ do {							    \
 #define LASSERT_ATOMIC_ZERO(a)		  LASSERT_ATOMIC_EQ(a, 0)
 #define LASSERT_ATOMIC_POS(a)		   LASSERT_ATOMIC_GT(a, 0)
 
-#define CFS_ALLOC_PTR(ptr)      LIBCFS_ALLOC(ptr, sizeof(*(ptr)));
-#define CFS_FREE_PTR(ptr)       LIBCFS_FREE(ptr, sizeof(*(ptr)));
+#define CFS_ALLOC_PTR(ptr)      LIBCFS_ALLOC(ptr, sizeof(*(ptr)))
+#define CFS_FREE_PTR(ptr)       LIBCFS_FREE(ptr, sizeof(*(ptr)))
 
 /*
  * percpu partition lock
diff --git a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c
index 6510169..3bad441 100644
--- a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c
+++ b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c
@@ -53,8 +53,7 @@ static lnd_t the_o2iblnd = {
 
 kib_data_t	      kiblnd_data;
 
-static __u32
-kiblnd_cksum(void *ptr, int nob)
+static __u32 kiblnd_cksum(void *ptr, int nob)
 {
 	char  *c  = ptr;
 	__u32  sum = 0;
@@ -66,8 +65,7 @@ kiblnd_cksum(void *ptr, int nob)
 	return (sum == 0) ? 1 : sum;
 }
 
-static char *
-kiblnd_msgtype2str(int type)
+static char *kiblnd_msgtype2str(int type)
 {
 	switch (type) {
 	case IBLND_MSG_CONNREQ:
@@ -105,8 +103,7 @@ kiblnd_msgtype2str(int type)
 	}
 }
 
-static int
-kiblnd_msgtype2size(int type)
+static int kiblnd_msgtype2size(int type)
 {
 	const int hdr_size = offsetof(kib_msg_t, ibm_u);
 
@@ -139,15 +136,14 @@ kiblnd_msgtype2size(int type)
 	}
 }
 
-static int
-kiblnd_unpack_rd(kib_msg_t *msg, int flip)
+static int kiblnd_unpack_rd(kib_msg_t *msg, int flip)
 {
 	kib_rdma_desc_t   *rd;
 	int		nob;
 	int		n;
 	int		i;
 
-	LASSERT (msg->ibm_type == IBLND_MSG_GET_REQ ||
+	LASSERT(msg->ibm_type == IBLND_MSG_GET_REQ ||
 		 msg->ibm_type == IBLND_MSG_PUT_ACK);
 
 	rd = msg->ibm_type == IBLND_MSG_GET_REQ ?
@@ -167,7 +163,7 @@ kiblnd_unpack_rd(kib_msg_t *msg, int flip)
 		return 1;
 	}
 
-	nob = offsetof (kib_msg_t, ibm_u) +
+	nob = offsetof(kib_msg_t, ibm_u) +
 	      kiblnd_rd_msg_size(rd, msg->ibm_type, n);
 
 	if (msg->ibm_nob < nob) {
@@ -187,9 +183,8 @@ kiblnd_unpack_rd(kib_msg_t *msg, int flip)
 	return 0;
 }
 
-void
-kiblnd_pack_msg (lnet_ni_t *ni, kib_msg_t *msg, int version,
-		 int credits, lnet_nid_t dstnid, __u64 dststamp)
+void kiblnd_pack_msg(lnet_ni_t *ni, kib_msg_t *msg, int version,
+		     int credits, lnet_nid_t dstnid, __u64 dststamp)
 {
 	kib_net_t *net = ni->ni_data;
 
@@ -212,8 +207,7 @@ kiblnd_pack_msg (lnet_ni_t *ni, kib_msg_t *msg, int version,
 	}
 }
 
-int
-kiblnd_unpack_msg(kib_msg_t *msg, int nob)
+int kiblnd_unpack_msg(kib_msg_t *msg, int nob)
 {
 	const int hdr_size = offsetof(kib_msg_t, ibm_u);
 	__u32     msg_cksum;
@@ -269,8 +263,8 @@ kiblnd_unpack_msg(kib_msg_t *msg, int nob)
 	if (flip) {
 		/* leave magic unflipped as a clue to peer endianness */
 		msg->ibm_version = version;
-		CLASSERT (sizeof(msg->ibm_type) == 1);
-		CLASSERT (sizeof(msg->ibm_credits) == 1);
+		CLASSERT(sizeof(msg->ibm_type) == 1);
+		CLASSERT(sizeof(msg->ibm_credits) == 1);
 		msg->ibm_nob     = msg_nob;
 		__swab64s(&msg->ibm_srcnid);
 		__swab64s(&msg->ibm_srcstamp);
@@ -324,8 +318,7 @@ kiblnd_unpack_msg(kib_msg_t *msg, int nob)
 	return 0;
 }
 
-int
-kiblnd_create_peer(lnet_ni_t *ni, kib_peer_t **peerp, lnet_nid_t nid)
+int kiblnd_create_peer(lnet_ni_t *ni, kib_peer_t **peerp, lnet_nid_t nid)
 {
 	kib_peer_t	*peer;
 	kib_net_t	*net = ni->ni_data;
@@ -356,7 +349,7 @@ kiblnd_create_peer(lnet_ni_t *ni, kib_peer_t **peerp, lnet_nid_t nid)
 	write_lock_irqsave(&kiblnd_data.kib_global_lock, flags);
 
 	/* always called with a ref on ni, which prevents ni being shutdown */
-	LASSERT (net->ibn_shutdown == 0);
+	LASSERT(net->ibn_shutdown == 0);
 
 	/* npeers only grows with the global lock held */
 	atomic_inc(&net->ibn_npeers);
@@ -367,18 +360,17 @@ kiblnd_create_peer(lnet_ni_t *ni, kib_peer_t **peerp, lnet_nid_t nid)
 	return 0;
 }
 
-void
-kiblnd_destroy_peer (kib_peer_t *peer)
+void kiblnd_destroy_peer(kib_peer_t *peer)
 {
 	kib_net_t *net = peer->ibp_ni->ni_data;
 
-	LASSERT (net != NULL);
-	LASSERT (atomic_read(&peer->ibp_refcount) == 0);
-	LASSERT (!kiblnd_peer_active(peer));
-	LASSERT (peer->ibp_connecting == 0);
-	LASSERT (peer->ibp_accepting == 0);
-	LASSERT (list_empty(&peer->ibp_conns));
-	LASSERT (list_empty(&peer->ibp_tx_queue));
+	LASSERT(net != NULL);
+	LASSERT(atomic_read(&peer->ibp_refcount) == 0);
+	LASSERT(!kiblnd_peer_active(peer));
+	LASSERT(peer->ibp_connecting == 0);
+	LASSERT(peer->ibp_accepting == 0);
+	LASSERT(list_empty(&peer->ibp_conns));
+	LASSERT(list_empty(&peer->ibp_tx_queue));
 
 	LIBCFS_FREE(peer, sizeof(*peer));
 
@@ -389,8 +381,7 @@ kiblnd_destroy_peer (kib_peer_t *peer)
 	atomic_dec(&net->ibn_npeers);
 }
 
-kib_peer_t *
-kiblnd_find_peer_locked (lnet_nid_t nid)
+kib_peer_t *kiblnd_find_peer_locked(lnet_nid_t nid)
 {
 	/* the caller is responsible for accounting the additional reference
 	 * that this creates */
@@ -398,11 +389,11 @@ kiblnd_find_peer_locked (lnet_nid_t nid)
 	struct list_head       *tmp;
 	kib_peer_t       *peer;
 
-	list_for_each (tmp, peer_list) {
+	list_for_each(tmp, peer_list) {
 
 		peer = list_entry(tmp, kib_peer_t, ibp_list);
 
-		LASSERT (peer->ibp_connecting > 0 || /* creating conns */
+		LASSERT(peer->ibp_connecting > 0 || /* creating conns */
 			 peer->ibp_accepting > 0 ||
 			 !list_empty(&peer->ibp_conns));  /* active conn */
 
@@ -418,20 +409,18 @@ kiblnd_find_peer_locked (lnet_nid_t nid)
 	return NULL;
 }
 
-void
-kiblnd_unlink_peer_locked (kib_peer_t *peer)
+void kiblnd_unlink_peer_locked(kib_peer_t *peer)
 {
-	LASSERT (list_empty(&peer->ibp_conns));
+	LASSERT(list_empty(&peer->ibp_conns));
 
-	LASSERT (kiblnd_peer_active(peer));
+	LASSERT(kiblnd_peer_active(peer));
 	list_del_init(&peer->ibp_list);
 	/* lose peerlist's ref */
 	kiblnd_peer_decref(peer);
 }
 
-static int
-kiblnd_get_peer_info(lnet_ni_t *ni, int index,
-		      lnet_nid_t *nidp, int *count)
+static int kiblnd_get_peer_info(lnet_ni_t *ni, int index,
+				lnet_nid_t *nidp, int *count)
 {
 	kib_peer_t	    *peer;
 	struct list_head	    *ptmp;
@@ -442,10 +431,10 @@ kiblnd_get_peer_info(lnet_ni_t *ni, int index,
 
 	for (i = 0; i < kiblnd_data.kib_peer_hash_size; i++) {
 
-		list_for_each (ptmp, &kiblnd_data.kib_peers[i]) {
+		list_for_each(ptmp, &kiblnd_data.kib_peers[i]) {
 
 			peer = list_entry(ptmp, kib_peer_t, ibp_list);
-			LASSERT (peer->ibp_connecting > 0 ||
+			LASSERT(peer->ibp_connecting > 0 ||
 				 peer->ibp_accepting > 0 ||
 				 !list_empty(&peer->ibp_conns));
 
@@ -468,8 +457,7 @@ kiblnd_get_peer_info(lnet_ni_t *ni, int index,
 	return -ENOENT;
 }
 
-static void
-kiblnd_del_peer_locked(kib_peer_t *peer)
+static void kiblnd_del_peer_locked(kib_peer_t *peer)
 {
 	struct list_head	   *ctmp;
 	struct list_head	   *cnxt;
@@ -478,7 +466,7 @@ kiblnd_del_peer_locked(kib_peer_t *peer)
 	if (list_empty(&peer->ibp_conns)) {
 		kiblnd_unlink_peer_locked(peer);
 	} else {
-		list_for_each_safe (ctmp, cnxt, &peer->ibp_conns) {
+		list_for_each_safe(ctmp, cnxt, &peer->ibp_conns) {
 			conn = list_entry(ctmp, kib_conn_t, ibc_list);
 
 			kiblnd_close_conn_locked(conn, 0);
@@ -489,10 +477,9 @@ kiblnd_del_peer_locked(kib_peer_t *peer)
 	 * last ref on it. */
 }
 
-static int
-kiblnd_del_peer(lnet_ni_t *ni, lnet_nid_t nid)
+static int kiblnd_del_peer(lnet_ni_t *ni, lnet_nid_t nid)
 {
-	LIST_HEAD	 (zombies);
+	LIST_HEAD(zombies);
 	struct list_head	    *ptmp;
 	struct list_head	    *pnxt;
 	kib_peer_t	    *peer;
@@ -512,9 +499,9 @@ kiblnd_del_peer(lnet_ni_t *ni, lnet_nid_t nid)
 	}
 
 	for (i = lo; i <= hi; i++) {
-		list_for_each_safe (ptmp, pnxt, &kiblnd_data.kib_peers[i]) {
+		list_for_each_safe(ptmp, pnxt, &kiblnd_data.kib_peers[i]) {
 			peer = list_entry(ptmp, kib_peer_t, ibp_list);
-			LASSERT (peer->ibp_connecting > 0 ||
+			LASSERT(peer->ibp_connecting > 0 ||
 				 peer->ibp_accepting > 0 ||
 				 !list_empty(&peer->ibp_conns));
 
@@ -525,7 +512,7 @@ kiblnd_del_peer(lnet_ni_t *ni, lnet_nid_t nid)
 				continue;
 
 			if (!list_empty(&peer->ibp_tx_queue)) {
-				LASSERT (list_empty(&peer->ibp_conns));
+				LASSERT(list_empty(&peer->ibp_conns));
 
 				list_splice_init(&peer->ibp_tx_queue,
 						     &zombies);
@@ -543,8 +530,7 @@ kiblnd_del_peer(lnet_ni_t *ni, lnet_nid_t nid)
 	return rc;
 }
 
-static kib_conn_t *
-kiblnd_get_conn_by_idx(lnet_ni_t *ni, int index)
+static kib_conn_t *kiblnd_get_conn_by_idx(lnet_ni_t *ni, int index)
 {
 	kib_peer_t	    *peer;
 	struct list_head	    *ptmp;
@@ -556,25 +542,26 @@ kiblnd_get_conn_by_idx(lnet_ni_t *ni, int index)
 	read_lock_irqsave(&kiblnd_data.kib_global_lock, flags);
 
 	for (i = 0; i < kiblnd_data.kib_peer_hash_size; i++) {
-		list_for_each (ptmp, &kiblnd_data.kib_peers[i]) {
+		list_for_each(ptmp, &kiblnd_data.kib_peers[i]) {
 
 			peer = list_entry(ptmp, kib_peer_t, ibp_list);
-			LASSERT (peer->ibp_connecting > 0 ||
+			LASSERT(peer->ibp_connecting > 0 ||
 				 peer->ibp_accepting > 0 ||
 				 !list_empty(&peer->ibp_conns));
 
 			if (peer->ibp_ni != ni)
 				continue;
 
-			list_for_each (ctmp, &peer->ibp_conns) {
+			list_for_each(ctmp, &peer->ibp_conns) {
 				if (index-- > 0)
 					continue;
 
 				conn = list_entry(ctmp, kib_conn_t,
 						      ibc_list);
 				kiblnd_conn_addref(conn);
-				read_unlock_irqrestore(&kiblnd_data.kib_global_lock,
-						       flags);
+				read_unlock_irqrestore(
+					&kiblnd_data.kib_global_lock,
+					flags);
 				return conn;
 			}
 		}
@@ -584,8 +571,7 @@ kiblnd_get_conn_by_idx(lnet_ni_t *ni, int index)
 	return NULL;
 }
 
-int
-kiblnd_translate_mtu(int value)
+int kiblnd_translate_mtu(int value)
 {
 	switch (value) {
 	default:
@@ -605,8 +591,7 @@ kiblnd_translate_mtu(int value)
 	}
 }
 
-static void
-kiblnd_setup_mtu_locked(struct rdma_cm_id *cmid)
+static void kiblnd_setup_mtu_locked(struct rdma_cm_id *cmid)
 {
 	int	   mtu;
 
@@ -615,13 +600,12 @@ kiblnd_setup_mtu_locked(struct rdma_cm_id *cmid)
 		return;
 
 	mtu = kiblnd_translate_mtu(*kiblnd_tunables.kib_ib_mtu);
-	LASSERT (mtu >= 0);
+	LASSERT(mtu >= 0);
 	if (mtu != 0)
 		cmid->route.path_rec->mtu = mtu;
 }
 
-static int
-kiblnd_get_completion_vector(kib_conn_t *conn, int cpt)
+static int kiblnd_get_completion_vector(kib_conn_t *conn, int cpt)
 {
 	cpumask_t	*mask;
 	int		vectors;
@@ -638,8 +622,8 @@ kiblnd_get_completion_vector(kib_conn_t *conn, int cpt)
 		return 0;
 
 	/* hash NID to CPU id in this partition... */
-	off = do_div(nid, cpus_weight(*mask));
-	for_each_cpu_mask(i, *mask) {
+	off = do_div(nid, cpumask_weight(mask));
+	for_each_cpu(i, mask) {
 		if (off-- == 0)
 			return i % vectors;
 	}
@@ -648,9 +632,8 @@ kiblnd_get_completion_vector(kib_conn_t *conn, int cpt)
 	return 1;
 }
 
-kib_conn_t *
-kiblnd_create_conn(kib_peer_t *peer, struct rdma_cm_id *cmid,
-		   int state, int version)
+kib_conn_t *kiblnd_create_conn(kib_peer_t *peer, struct rdma_cm_id *cmid,
+				int state, int version)
 {
 	/* CAVEAT EMPTOR:
 	 * If the new conn is created successfully it takes over the caller's
@@ -835,7 +818,7 @@ kiblnd_create_conn(kib_peer_t *peer, struct rdma_cm_id *cmid,
 	}
 
 	/* Init successful! */
-	LASSERT (state == IBLND_CONN_ACTIVE_CONNECT ||
+	LASSERT(state == IBLND_CONN_ACTIVE_CONNECT ||
 		 state == IBLND_CONN_PASSIVE_WAIT);
 	conn->ibc_state = state;
 
@@ -851,23 +834,22 @@ kiblnd_create_conn(kib_peer_t *peer, struct rdma_cm_id *cmid,
 	return NULL;
 }
 
-void
-kiblnd_destroy_conn (kib_conn_t *conn)
+void kiblnd_destroy_conn(kib_conn_t *conn)
 {
 	struct rdma_cm_id *cmid = conn->ibc_cmid;
 	kib_peer_t	*peer = conn->ibc_peer;
 	int		rc;
 
-	LASSERT (!in_interrupt());
-	LASSERT (atomic_read(&conn->ibc_refcount) == 0);
-	LASSERT (list_empty(&conn->ibc_early_rxs));
-	LASSERT (list_empty(&conn->ibc_tx_noops));
-	LASSERT (list_empty(&conn->ibc_tx_queue));
-	LASSERT (list_empty(&conn->ibc_tx_queue_rsrvd));
-	LASSERT (list_empty(&conn->ibc_tx_queue_nocred));
-	LASSERT (list_empty(&conn->ibc_active_txs));
-	LASSERT (conn->ibc_noops_posted == 0);
-	LASSERT (conn->ibc_nsends_posted == 0);
+	LASSERT(!in_interrupt());
+	LASSERT(atomic_read(&conn->ibc_refcount) == 0);
+	LASSERT(list_empty(&conn->ibc_early_rxs));
+	LASSERT(list_empty(&conn->ibc_tx_noops));
+	LASSERT(list_empty(&conn->ibc_tx_queue));
+	LASSERT(list_empty(&conn->ibc_tx_queue_rsrvd));
+	LASSERT(list_empty(&conn->ibc_tx_queue_nocred));
+	LASSERT(list_empty(&conn->ibc_active_txs));
+	LASSERT(conn->ibc_noops_posted == 0);
+	LASSERT(conn->ibc_nsends_posted == 0);
 
 	switch (conn->ibc_state) {
 	default:
@@ -876,7 +858,7 @@ kiblnd_destroy_conn (kib_conn_t *conn)
 
 	case IBLND_CONN_DISCONNECTED:
 		/* connvars should have been freed already */
-		LASSERT (conn->ibc_connvars == NULL);
+		LASSERT(conn->ibc_connvars == NULL);
 		break;
 
 	case IBLND_CONN_INIT:
@@ -898,7 +880,8 @@ kiblnd_destroy_conn (kib_conn_t *conn)
 
 	if (conn->ibc_rxs != NULL) {
 		LIBCFS_FREE(conn->ibc_rxs,
-			    IBLND_RX_MSGS(conn->ibc_version) * sizeof(kib_rx_t));
+			    IBLND_RX_MSGS(conn->ibc_version)
+			      * sizeof(kib_rx_t));
 	}
 
 	if (conn->ibc_connvars != NULL)
@@ -919,15 +902,14 @@ kiblnd_destroy_conn (kib_conn_t *conn)
 	LIBCFS_FREE(conn, sizeof(*conn));
 }
 
-int
-kiblnd_close_peer_conns_locked (kib_peer_t *peer, int why)
+int kiblnd_close_peer_conns_locked(kib_peer_t *peer, int why)
 {
 	kib_conn_t	     *conn;
 	struct list_head	     *ctmp;
 	struct list_head	     *cnxt;
 	int		     count = 0;
 
-	list_for_each_safe (ctmp, cnxt, &peer->ibp_conns) {
+	list_for_each_safe(ctmp, cnxt, &peer->ibp_conns) {
 		conn = list_entry(ctmp, kib_conn_t, ibc_list);
 
 		CDEBUG(D_NET, "Closing conn -> %s, version: %x, reason: %d\n",
@@ -941,23 +923,23 @@ kiblnd_close_peer_conns_locked (kib_peer_t *peer, int why)
 	return count;
 }
 
-int
-kiblnd_close_stale_conns_locked (kib_peer_t *peer,
-				 int version, __u64 incarnation)
+int kiblnd_close_stale_conns_locked(kib_peer_t *peer,
+				     int version, __u64 incarnation)
 {
 	kib_conn_t	     *conn;
 	struct list_head	     *ctmp;
 	struct list_head	     *cnxt;
 	int		     count = 0;
 
-	list_for_each_safe (ctmp, cnxt, &peer->ibp_conns) {
+	list_for_each_safe(ctmp, cnxt, &peer->ibp_conns) {
 		conn = list_entry(ctmp, kib_conn_t, ibc_list);
 
 		if (conn->ibc_version     == version &&
 		    conn->ibc_incarnation == incarnation)
 			continue;
 
-		CDEBUG(D_NET, "Closing stale conn -> %s version: %x, incarnation:%#llx(%x, %#llx)\n",
+		CDEBUG(D_NET,
+		       "Closing stale conn -> %s version: %x, incarnation:%#llx(%x, %#llx)\n",
 		       libcfs_nid2str(peer->ibp_nid),
 		       conn->ibc_version, conn->ibc_incarnation,
 		       version, incarnation);
@@ -969,8 +951,7 @@ kiblnd_close_stale_conns_locked (kib_peer_t *peer,
 	return count;
 }
 
-static int
-kiblnd_close_matching_conns(lnet_ni_t *ni, lnet_nid_t nid)
+static int kiblnd_close_matching_conns(lnet_ni_t *ni, lnet_nid_t nid)
 {
 	kib_peer_t	     *peer;
 	struct list_head	     *ptmp;
@@ -991,10 +972,10 @@ kiblnd_close_matching_conns(lnet_ni_t *ni, lnet_nid_t nid)
 	}
 
 	for (i = lo; i <= hi; i++) {
-		list_for_each_safe (ptmp, pnxt, &kiblnd_data.kib_peers[i]) {
+		list_for_each_safe(ptmp, pnxt, &kiblnd_data.kib_peers[i]) {
 
 			peer = list_entry(ptmp, kib_peer_t, ibp_list);
-			LASSERT (peer->ibp_connecting > 0 ||
+			LASSERT(peer->ibp_connecting > 0 ||
 				 peer->ibp_accepting > 0 ||
 				 !list_empty(&peer->ibp_conns));
 
@@ -1017,8 +998,7 @@ kiblnd_close_matching_conns(lnet_ni_t *ni, lnet_nid_t nid)
 	return (count == 0) ? -ENOENT : 0;
 }
 
-int
-kiblnd_ctl(lnet_ni_t *ni, unsigned int cmd, void *arg)
+int kiblnd_ctl(lnet_ni_t *ni, unsigned int cmd, void *arg)
 {
 	struct libcfs_ioctl_data *data = arg;
 	int		       rc = -EINVAL;
@@ -1049,7 +1029,7 @@ kiblnd_ctl(lnet_ni_t *ni, unsigned int cmd, void *arg)
 			break;
 		}
 
-		LASSERT (conn->ibc_cmid != NULL);
+		LASSERT(conn->ibc_cmid != NULL);
 		data->ioc_nid = conn->ibc_peer->ibp_nid;
 		if (conn->ibc_cmid->route.path_rec == NULL)
 			data->ioc_u32[0] = 0; /* iWarp has no path MTU */
@@ -1071,8 +1051,7 @@ kiblnd_ctl(lnet_ni_t *ni, unsigned int cmd, void *arg)
 	return rc;
 }
 
-void
-kiblnd_query (lnet_ni_t *ni, lnet_nid_t nid, unsigned long *when)
+void kiblnd_query(lnet_ni_t *ni, lnet_nid_t nid, unsigned long *when)
 {
 	unsigned long	last_alive = 0;
 	unsigned long	now = cfs_time_current();
@@ -1084,7 +1063,7 @@ kiblnd_query (lnet_ni_t *ni, lnet_nid_t nid, unsigned long *when)
 
 	peer = kiblnd_find_peer_locked(nid);
 	if (peer != NULL) {
-		LASSERT (peer->ibp_connecting > 0 || /* creating conns */
+		LASSERT(peer->ibp_connecting > 0 || /* creating conns */
 			 peer->ibp_accepting > 0 ||
 			 !list_empty(&peer->ibp_conns));  /* active conn */
 		last_alive = peer->ibp_last_alive;
@@ -1103,11 +1082,9 @@ kiblnd_query (lnet_ni_t *ni, lnet_nid_t nid, unsigned long *when)
 	CDEBUG(D_NET, "Peer %s %p, alive %ld secs ago\n",
 	       libcfs_nid2str(nid), peer,
 	       last_alive ? cfs_duration_sec(now - last_alive) : -1);
-	return;
 }
 
-void
-kiblnd_free_pages(kib_pages_t *p)
+void kiblnd_free_pages(kib_pages_t *p)
 {
 	int	npages = p->ibp_npages;
 	int	i;
@@ -1120,8 +1097,7 @@ kiblnd_free_pages(kib_pages_t *p)
 	LIBCFS_FREE(p, offsetof(kib_pages_t, ibp_pages[npages]));
 }
 
-int
-kiblnd_alloc_pages(kib_pages_t **pp, int cpt, int npages)
+int kiblnd_alloc_pages(kib_pages_t **pp, int cpt, int npages)
 {
 	kib_pages_t	*p;
 	int		i;
@@ -1151,19 +1127,18 @@ kiblnd_alloc_pages(kib_pages_t **pp, int cpt, int npages)
 	return 0;
 }
 
-void
-kiblnd_unmap_rx_descs(kib_conn_t *conn)
+void kiblnd_unmap_rx_descs(kib_conn_t *conn)
 {
 	kib_rx_t *rx;
 	int       i;
 
-	LASSERT (conn->ibc_rxs != NULL);
-	LASSERT (conn->ibc_hdev != NULL);
+	LASSERT(conn->ibc_rxs != NULL);
+	LASSERT(conn->ibc_hdev != NULL);
 
 	for (i = 0; i < IBLND_RX_MSGS(conn->ibc_version); i++) {
 		rx = &conn->ibc_rxs[i];
 
-		LASSERT (rx->rx_nob >= 0); /* not posted */
+		LASSERT(rx->rx_nob >= 0); /* not posted */
 
 		kiblnd_dma_unmap_single(conn->ibc_hdev->ibh_ibdev,
 					KIBLND_UNMAP_ADDR(rx, rx_msgunmap,
@@ -1176,8 +1151,7 @@ kiblnd_unmap_rx_descs(kib_conn_t *conn)
 	conn->ibc_rx_pages = NULL;
 }
 
-void
-kiblnd_map_rx_descs(kib_conn_t *conn)
+void kiblnd_map_rx_descs(kib_conn_t *conn)
 {
 	kib_rx_t       *rx;
 	struct page    *pg;
@@ -1194,9 +1168,10 @@ kiblnd_map_rx_descs(kib_conn_t *conn)
 		rx->rx_msg = (kib_msg_t *)(((char *)page_address(pg)) + pg_off);
 
 		rx->rx_msgaddr = kiblnd_dma_map_single(conn->ibc_hdev->ibh_ibdev,
-						       rx->rx_msg, IBLND_MSG_SIZE,
+						       rx->rx_msg,
+						       IBLND_MSG_SIZE,
 						       DMA_FROM_DEVICE);
-		LASSERT (!kiblnd_dma_mapping_error(conn->ibc_hdev->ibh_ibdev,
+		LASSERT(!kiblnd_dma_mapping_error(conn->ibc_hdev->ibh_ibdev,
 						   rx->rx_msgaddr));
 		KIBLND_UNMAP_ADDR_SET(rx, rx_msgunmap, rx->rx_msgaddr);
 
@@ -1205,24 +1180,23 @@ kiblnd_map_rx_descs(kib_conn_t *conn)
 		       lnet_page2phys(pg) + pg_off);
 
 		pg_off += IBLND_MSG_SIZE;
-		LASSERT (pg_off <= PAGE_SIZE);
+		LASSERT(pg_off <= PAGE_SIZE);
 
 		if (pg_off == PAGE_SIZE) {
 			pg_off = 0;
 			ipg++;
-			LASSERT (ipg <= IBLND_RX_MSG_PAGES(conn->ibc_version));
+			LASSERT(ipg <= IBLND_RX_MSG_PAGES(conn->ibc_version));
 		}
 	}
 }
 
-static void
-kiblnd_unmap_tx_pool(kib_tx_pool_t *tpo)
+static void kiblnd_unmap_tx_pool(kib_tx_pool_t *tpo)
 {
 	kib_hca_dev_t  *hdev = tpo->tpo_hdev;
 	kib_tx_t       *tx;
 	int	     i;
 
-	LASSERT (tpo->tpo_pool.po_allocated == 0);
+	LASSERT(tpo->tpo_pool.po_allocated == 0);
 
 	if (hdev == NULL)
 		return;
@@ -1239,8 +1213,7 @@ kiblnd_unmap_tx_pool(kib_tx_pool_t *tpo)
 	tpo->tpo_hdev = NULL;
 }
 
-static kib_hca_dev_t *
-kiblnd_current_hdev(kib_dev_t *dev)
+static kib_hca_dev_t *kiblnd_current_hdev(kib_dev_t *dev)
 {
 	kib_hca_dev_t *hdev;
 	unsigned long  flags;
@@ -1265,8 +1238,7 @@ kiblnd_current_hdev(kib_dev_t *dev)
 	return hdev;
 }
 
-static void
-kiblnd_map_tx_pool(kib_tx_pool_t *tpo)
+static void kiblnd_map_tx_pool(kib_tx_pool_t *tpo)
 {
 	kib_pages_t    *txpgs = tpo->tpo_tx_pages;
 	kib_pool_t     *pool  = &tpo->tpo_pool;
@@ -1278,15 +1250,15 @@ kiblnd_map_tx_pool(kib_tx_pool_t *tpo)
 	int	     ipage;
 	int	     i;
 
-	LASSERT (net != NULL);
+	LASSERT(net != NULL);
 
 	dev = net->ibn_dev;
 
 	/* pre-mapped messages are not bigger than 1 page */
-	CLASSERT (IBLND_MSG_SIZE <= PAGE_SIZE);
+	CLASSERT(IBLND_MSG_SIZE <= PAGE_SIZE);
 
 	/* No fancy arithmetic when we do the buffer calculations */
-	CLASSERT (PAGE_SIZE % IBLND_MSG_SIZE == 0);
+	CLASSERT(PAGE_SIZE % IBLND_MSG_SIZE == 0);
 
 	tpo->tpo_hdev = kiblnd_current_hdev(dev);
 
@@ -1300,29 +1272,28 @@ kiblnd_map_tx_pool(kib_tx_pool_t *tpo)
 		tx->tx_msgaddr = kiblnd_dma_map_single(
 			tpo->tpo_hdev->ibh_ibdev, tx->tx_msg,
 			IBLND_MSG_SIZE, DMA_TO_DEVICE);
-		LASSERT (!kiblnd_dma_mapping_error(tpo->tpo_hdev->ibh_ibdev,
+		LASSERT(!kiblnd_dma_mapping_error(tpo->tpo_hdev->ibh_ibdev,
 						   tx->tx_msgaddr));
 		KIBLND_UNMAP_ADDR_SET(tx, tx_msgunmap, tx->tx_msgaddr);
 
 		list_add(&tx->tx_list, &pool->po_free_list);
 
 		page_offset += IBLND_MSG_SIZE;
-		LASSERT (page_offset <= PAGE_SIZE);
+		LASSERT(page_offset <= PAGE_SIZE);
 
 		if (page_offset == PAGE_SIZE) {
 			page_offset = 0;
 			ipage++;
-			LASSERT (ipage <= txpgs->ibp_npages);
+			LASSERT(ipage <= txpgs->ibp_npages);
 		}
 	}
 }
 
-struct ib_mr *
-kiblnd_find_dma_mr(kib_hca_dev_t *hdev, __u64 addr, __u64 size)
+struct ib_mr *kiblnd_find_dma_mr(kib_hca_dev_t *hdev, __u64 addr, __u64 size)
 {
 	__u64   index;
 
-	LASSERT (hdev->ibh_mrs[0] != NULL);
+	LASSERT(hdev->ibh_mrs[0] != NULL);
 
 	if (hdev->ibh_nmrs == 1)
 		return hdev->ibh_mrs[0];
@@ -1336,14 +1307,13 @@ kiblnd_find_dma_mr(kib_hca_dev_t *hdev, __u64 addr, __u64 size)
 	return NULL;
 }
 
-struct ib_mr *
-kiblnd_find_rd_dma_mr(kib_hca_dev_t *hdev, kib_rdma_desc_t *rd)
+struct ib_mr *kiblnd_find_rd_dma_mr(kib_hca_dev_t *hdev, kib_rdma_desc_t *rd)
 {
 	struct ib_mr *prev_mr;
 	struct ib_mr *mr;
 	int	   i;
 
-	LASSERT (hdev->ibh_mrs[0] != NULL);
+	LASSERT(hdev->ibh_mrs[0] != NULL);
 
 	if (*kiblnd_tunables.kib_map_on_demand > 0 &&
 	    *kiblnd_tunables.kib_map_on_demand <= rd->rd_nfrags)
@@ -1370,10 +1340,9 @@ kiblnd_find_rd_dma_mr(kib_hca_dev_t *hdev, kib_rdma_desc_t *rd)
 	return mr;
 }
 
-static void
-kiblnd_destroy_fmr_pool(kib_fmr_pool_t *pool)
+static void kiblnd_destroy_fmr_pool(kib_fmr_pool_t *pool)
 {
-	LASSERT (pool->fpo_map_count == 0);
+	LASSERT(pool->fpo_map_count == 0);
 
 	if (pool->fpo_fmr_pool != NULL)
 		ib_destroy_fmr_pool(pool->fpo_fmr_pool);
@@ -1384,8 +1353,7 @@ kiblnd_destroy_fmr_pool(kib_fmr_pool_t *pool)
 	LIBCFS_FREE(pool, sizeof(kib_fmr_pool_t));
 }
 
-static void
-kiblnd_destroy_fmr_pool_list(struct list_head *head)
+static void kiblnd_destroy_fmr_pool_list(struct list_head *head)
 {
 	kib_fmr_pool_t *pool;
 
@@ -1410,8 +1378,8 @@ static int kiblnd_fmr_flush_trigger(int ncpts)
 	return max(IBLND_FMR_POOL_FLUSH, size);
 }
 
-static int
-kiblnd_create_fmr_pool(kib_fmr_poolset_t *fps, kib_fmr_pool_t **pp_fpo)
+static int kiblnd_create_fmr_pool(kib_fmr_poolset_t *fps,
+				  kib_fmr_pool_t **pp_fpo)
 {
 	/* FMR pool for RDMA */
 	kib_dev_t	       *dev = fps->fps_net->ibn_dev;
@@ -1451,8 +1419,8 @@ kiblnd_create_fmr_pool(kib_fmr_poolset_t *fps, kib_fmr_pool_t **pp_fpo)
 	return 0;
 }
 
-static void
-kiblnd_fail_fmr_poolset(kib_fmr_poolset_t *fps, struct list_head *zombies)
+static void kiblnd_fail_fmr_poolset(kib_fmr_poolset_t *fps,
+				    struct list_head *zombies)
 {
 	if (fps->fps_net == NULL) /* intialized? */
 		return;
@@ -1473,8 +1441,7 @@ kiblnd_fail_fmr_poolset(kib_fmr_poolset_t *fps, struct list_head *zombies)
 	spin_unlock(&fps->fps_lock);
 }
 
-static void
-kiblnd_fini_fmr_poolset(kib_fmr_poolset_t *fps)
+static void kiblnd_fini_fmr_poolset(kib_fmr_poolset_t *fps)
 {
 	if (fps->fps_net != NULL) { /* initialized? */
 		kiblnd_destroy_fmr_pool_list(&fps->fps_failed_pool_list);
@@ -1482,9 +1449,9 @@ kiblnd_fini_fmr_poolset(kib_fmr_poolset_t *fps)
 	}
 }
 
-static int
-kiblnd_init_fmr_poolset(kib_fmr_poolset_t *fps, int cpt, kib_net_t *net,
-			int pool_size, int flush_trigger)
+static int kiblnd_init_fmr_poolset(kib_fmr_poolset_t *fps, int cpt,
+				   kib_net_t *net, int pool_size,
+				   int flush_trigger)
 {
 	kib_fmr_pool_t *fpo;
 	int	     rc;
@@ -1506,8 +1473,7 @@ kiblnd_init_fmr_poolset(kib_fmr_poolset_t *fps, int cpt, kib_net_t *net,
 	return rc;
 }
 
-static int
-kiblnd_fmr_pool_is_idle(kib_fmr_pool_t *fpo, unsigned long now)
+static int kiblnd_fmr_pool_is_idle(kib_fmr_pool_t *fpo, unsigned long now)
 {
 	if (fpo->fpo_map_count != 0) /* still in use */
 		return 0;
@@ -1516,10 +1482,9 @@ kiblnd_fmr_pool_is_idle(kib_fmr_pool_t *fpo, unsigned long now)
 	return cfs_time_aftereq(now, fpo->fpo_deadline);
 }
 
-void
-kiblnd_fmr_pool_unmap(kib_fmr_t *fmr, int status)
+void kiblnd_fmr_pool_unmap(kib_fmr_t *fmr, int status)
 {
-	LIST_HEAD     (zombies);
+	LIST_HEAD(zombies);
 	kib_fmr_pool_t    *fpo = fmr->fmr_pool;
 	kib_fmr_poolset_t *fps = fpo->fpo_owner;
 	unsigned long	 now = cfs_time_current();
@@ -1527,11 +1492,11 @@ kiblnd_fmr_pool_unmap(kib_fmr_t *fmr, int status)
 	int		rc;
 
 	rc = ib_fmr_pool_unmap(fmr->fmr_pfmr);
-	LASSERT (rc == 0);
+	LASSERT(rc == 0);
 
 	if (status != 0) {
 		rc = ib_flush_fmr_pool(fpo->fpo_fmr_pool);
-		LASSERT (rc == 0);
+		LASSERT(rc == 0);
 	}
 
 	fmr->fmr_pool = NULL;
@@ -1556,9 +1521,8 @@ kiblnd_fmr_pool_unmap(kib_fmr_t *fmr, int status)
 		kiblnd_destroy_fmr_pool_list(&zombies);
 }
 
-int
-kiblnd_fmr_pool_map(kib_fmr_poolset_t *fps, __u64 *pages, int npages,
-		    __u64 iov, kib_fmr_t *fmr)
+int kiblnd_fmr_pool_map(kib_fmr_poolset_t *fps, __u64 *pages, int npages,
+			__u64 iov, kib_fmr_t *fmr)
 {
 	struct ib_pool_fmr *pfmr;
 	kib_fmr_pool_t     *fpo;
@@ -1597,7 +1561,8 @@ kiblnd_fmr_pool_map(kib_fmr_poolset_t *fps, __u64 *pages, int npages,
 
 	if (fps->fps_increasing) {
 		spin_unlock(&fps->fps_lock);
-		CDEBUG(D_NET, "Another thread is allocating new FMR pool, waiting for her to complete\n");
+		CDEBUG(D_NET,
+			"Another thread is allocating new FMR pool, waiting for her to complete\n");
 		schedule();
 		goto again;
 
@@ -1627,17 +1592,15 @@ kiblnd_fmr_pool_map(kib_fmr_poolset_t *fps, __u64 *pages, int npages,
 	goto again;
 }
 
-static void
-kiblnd_fini_pool(kib_pool_t *pool)
+static void kiblnd_fini_pool(kib_pool_t *pool)
 {
-	LASSERT (list_empty(&pool->po_free_list));
-	LASSERT (pool->po_allocated == 0);
+	LASSERT(list_empty(&pool->po_free_list));
+	LASSERT(pool->po_allocated == 0);
 
 	CDEBUG(D_NET, "Finalize %s pool\n", pool->po_owner->ps_name);
 }
 
-static void
-kiblnd_init_pool(kib_poolset_t *ps, kib_pool_t *pool, int size)
+static void kiblnd_init_pool(kib_poolset_t *ps, kib_pool_t *pool, int size)
 {
 	CDEBUG(D_NET, "Initialize %s pool\n", ps->ps_name);
 
@@ -1648,8 +1611,7 @@ kiblnd_init_pool(kib_poolset_t *ps, kib_pool_t *pool, int size)
 	pool->po_size     = size;
 }
 
-static void
-kiblnd_destroy_pool_list(struct list_head *head)
+static void kiblnd_destroy_pool_list(struct list_head *head)
 {
 	kib_pool_t *pool;
 
@@ -1657,13 +1619,12 @@ kiblnd_destroy_pool_list(struct list_head *head)
 		pool = list_entry(head->next, kib_pool_t, po_list);
 		list_del(&pool->po_list);
 
-		LASSERT (pool->po_owner != NULL);
+		LASSERT(pool->po_owner != NULL);
 		pool->po_owner->ps_pool_destroy(pool);
 	}
 }
 
-static void
-kiblnd_fail_poolset(kib_poolset_t *ps, struct list_head *zombies)
+static void kiblnd_fail_poolset(kib_poolset_t *ps, struct list_head *zombies)
 {
 	if (ps->ps_net == NULL) /* intialized? */
 		return;
@@ -1682,8 +1643,7 @@ kiblnd_fail_poolset(kib_poolset_t *ps, struct list_head *zombies)
 	spin_unlock(&ps->ps_lock);
 }
 
-static void
-kiblnd_fini_poolset(kib_poolset_t *ps)
+static void kiblnd_fini_poolset(kib_poolset_t *ps)
 {
 	if (ps->ps_net != NULL) { /* initialized? */
 		kiblnd_destroy_pool_list(&ps->ps_failed_pool_list);
@@ -1691,13 +1651,12 @@ kiblnd_fini_poolset(kib_poolset_t *ps)
 	}
 }
 
-static int
-kiblnd_init_poolset(kib_poolset_t *ps, int cpt,
-		    kib_net_t *net, char *name, int size,
-		    kib_ps_pool_create_t po_create,
-		    kib_ps_pool_destroy_t po_destroy,
-		    kib_ps_node_init_t nd_init,
-		    kib_ps_node_fini_t nd_fini)
+static int kiblnd_init_poolset(kib_poolset_t *ps, int cpt,
+			       kib_net_t *net, char *name, int size,
+			       kib_ps_pool_create_t po_create,
+			       kib_ps_pool_destroy_t po_destroy,
+			       kib_ps_node_init_t nd_init,
+			       kib_ps_node_fini_t nd_fini)
 {
 	kib_pool_t	*pool;
 	int		rc;
@@ -1727,8 +1686,7 @@ kiblnd_init_poolset(kib_poolset_t *ps, int cpt,
 	return rc;
 }
 
-static int
-kiblnd_pool_is_idle(kib_pool_t *pool, unsigned long now)
+static int kiblnd_pool_is_idle(kib_pool_t *pool, unsigned long now)
 {
 	if (pool->po_allocated != 0) /* still in use */
 		return 0;
@@ -1737,10 +1695,9 @@ kiblnd_pool_is_idle(kib_pool_t *pool, unsigned long now)
 	return cfs_time_aftereq(now, pool->po_deadline);
 }
 
-void
-kiblnd_pool_free_node(kib_pool_t *pool, struct list_head *node)
+void kiblnd_pool_free_node(kib_pool_t *pool, struct list_head *node)
 {
-	LIST_HEAD  (zombies);
+	LIST_HEAD(zombies);
 	kib_poolset_t  *ps = pool->po_owner;
 	kib_pool_t     *tmp;
 	unsigned long      now = cfs_time_current();
@@ -1750,7 +1707,7 @@ kiblnd_pool_free_node(kib_pool_t *pool, struct list_head *node)
 	if (ps->ps_node_fini != NULL)
 		ps->ps_node_fini(pool, node);
 
-	LASSERT (pool->po_allocated > 0);
+	LASSERT(pool->po_allocated > 0);
 	list_add(node, &pool->po_free_list);
 	pool->po_allocated--;
 
@@ -1768,8 +1725,7 @@ kiblnd_pool_free_node(kib_pool_t *pool, struct list_head *node)
 		kiblnd_destroy_pool_list(&zombies);
 }
 
-struct list_head *
-kiblnd_pool_alloc_node(kib_poolset_t *ps)
+struct list_head *kiblnd_pool_alloc_node(kib_poolset_t *ps)
 {
 	struct list_head	    *node;
 	kib_pool_t	    *pool;
@@ -1831,8 +1787,7 @@ kiblnd_pool_alloc_node(kib_poolset_t *ps)
 	goto again;
 }
 
-void
-kiblnd_pmr_pool_unmap(kib_phys_mr_t *pmr)
+void kiblnd_pmr_pool_unmap(kib_phys_mr_t *pmr)
 {
 	kib_pmr_pool_t      *ppo = pmr->pmr_pool;
 	struct ib_mr	*mr  = pmr->pmr_mr;
@@ -1843,8 +1798,7 @@ kiblnd_pmr_pool_unmap(kib_phys_mr_t *pmr)
 		ib_dereg_mr(mr);
 }
 
-int
-kiblnd_pmr_pool_map(kib_pmr_poolset_t *pps, kib_hca_dev_t *hdev,
+int kiblnd_pmr_pool_map(kib_pmr_poolset_t *pps, kib_hca_dev_t *hdev,
 		    kib_rdma_desc_t *rd, __u64 *iova, kib_phys_mr_t **pp_pmr)
 {
 	kib_phys_mr_t *pmr;
@@ -1889,19 +1843,16 @@ kiblnd_pmr_pool_map(kib_pmr_poolset_t *pps, kib_hca_dev_t *hdev,
 	return rc;
 }
 
-static void
-kiblnd_destroy_pmr_pool(kib_pool_t *pool)
+static void kiblnd_destroy_pmr_pool(kib_pool_t *pool)
 {
 	kib_pmr_pool_t *ppo = container_of(pool, kib_pmr_pool_t, ppo_pool);
 	kib_phys_mr_t  *pmr;
+	kib_phys_mr_t *tmp;
 
-	LASSERT (pool->po_allocated == 0);
-
-	while (!list_empty(&pool->po_free_list)) {
-		pmr = list_entry(pool->po_free_list.next,
-				     kib_phys_mr_t, pmr_list);
+	LASSERT(pool->po_allocated == 0);
 
-		LASSERT (pmr->pmr_mr == NULL);
+	list_for_each_entry_safe(pmr, tmp, &pool->po_free_list, pmr_list) {
+		LASSERT(pmr->pmr_mr == NULL);
 		list_del(&pmr->pmr_list);
 
 		if (pmr->pmr_ipb != NULL) {
@@ -1927,8 +1878,8 @@ static inline int kiblnd_pmr_pool_size(int ncpts)
 	return max(IBLND_PMR_POOL, size);
 }
 
-static int
-kiblnd_create_pmr_pool(kib_poolset_t *ps, int size, kib_pool_t **pp_po)
+static int kiblnd_create_pmr_pool(kib_poolset_t *ps, int size,
+				  kib_pool_t **pp_po)
 {
 	struct kib_pmr_pool	*ppo;
 	struct kib_pool		*pool;
@@ -1970,13 +1921,12 @@ kiblnd_create_pmr_pool(kib_poolset_t *ps, int size, kib_pool_t **pp_po)
 	return 0;
 }
 
-static void
-kiblnd_destroy_tx_pool(kib_pool_t *pool)
+static void kiblnd_destroy_tx_pool(kib_pool_t *pool)
 {
 	kib_tx_pool_t  *tpo = container_of(pool, kib_tx_pool_t, tpo_pool);
 	int	     i;
 
-	LASSERT (pool->po_allocated == 0);
+	LASSERT(pool->po_allocated == 0);
 
 	if (tpo->tpo_tx_pages != NULL) {
 		kiblnd_unmap_tx_pool(tpo);
@@ -2026,8 +1976,8 @@ static int kiblnd_tx_pool_size(int ncpts)
 	return max(IBLND_TX_POOL, ntx);
 }
 
-static int
-kiblnd_create_tx_pool(kib_poolset_t *ps, int size, kib_pool_t **pp_po)
+static int kiblnd_create_tx_pool(kib_poolset_t *ps, int size,
+				 kib_pool_t **pp_po)
 {
 	int	    i;
 	int	    npg;
@@ -2110,8 +2060,7 @@ kiblnd_create_tx_pool(kib_poolset_t *ps, int size, kib_pool_t **pp_po)
 	return -ENOMEM;
 }
 
-static void
-kiblnd_tx_init(kib_pool_t *pool, struct list_head *node)
+static void kiblnd_tx_init(kib_pool_t *pool, struct list_head *node)
 {
 	kib_tx_poolset_t *tps = container_of(pool->po_owner, kib_tx_poolset_t,
 					     tps_poolset);
@@ -2120,8 +2069,7 @@ kiblnd_tx_init(kib_pool_t *pool, struct list_head *node)
 	tx->tx_cookie = tps->tps_next_tx_cookie++;
 }
 
-static void
-kiblnd_net_fini_pools(kib_net_t *net)
+static void kiblnd_net_fini_pools(kib_net_t *net)
 {
 	int	i;
 
@@ -2162,8 +2110,7 @@ kiblnd_net_fini_pools(kib_net_t *net)
 	}
 }
 
-static int
-kiblnd_net_init_pools(kib_net_t *net, __u32 *cpts, int ncpts)
+static int kiblnd_net_init_pools(kib_net_t *net, __u32 *cpts, int ncpts)
 {
 	unsigned long	flags;
 	int		cpt;
@@ -2291,8 +2238,7 @@ kiblnd_net_init_pools(kib_net_t *net, __u32 *cpts, int ncpts)
 	return rc;
 }
 
-static int
-kiblnd_hdev_get_attr(kib_hca_dev_t *hdev)
+static int kiblnd_hdev_get_attr(kib_hca_dev_t *hdev)
 {
 	struct ib_device_attr *attr;
 	int		    rc;
@@ -2336,8 +2282,7 @@ kiblnd_hdev_get_attr(kib_hca_dev_t *hdev)
 	return -EINVAL;
 }
 
-static void
-kiblnd_hdev_cleanup_mrs(kib_hca_dev_t *hdev)
+static void kiblnd_hdev_cleanup_mrs(kib_hca_dev_t *hdev)
 {
 	int     i;
 
@@ -2356,8 +2301,7 @@ kiblnd_hdev_cleanup_mrs(kib_hca_dev_t *hdev)
 	hdev->ibh_nmrs = 0;
 }
 
-void
-kiblnd_hdev_destroy(kib_hca_dev_t *hdev)
+void kiblnd_hdev_destroy(kib_hca_dev_t *hdev)
 {
 	kiblnd_hdev_cleanup_mrs(hdev);
 
@@ -2370,8 +2314,7 @@ kiblnd_hdev_destroy(kib_hca_dev_t *hdev)
 	LIBCFS_FREE(hdev, sizeof(*hdev));
 }
 
-static int
-kiblnd_hdev_setup_mrs(kib_hca_dev_t *hdev)
+static int kiblnd_hdev_setup_mrs(kib_hca_dev_t *hdev)
 {
 	struct ib_mr *mr;
 	int	   i;
@@ -2442,7 +2385,7 @@ kiblnd_hdev_setup_mrs(kib_hca_dev_t *hdev)
 			return PTR_ERR(mr);
 		}
 
-		LASSERT (iova == ipb.addr);
+		LASSERT(iova == ipb.addr);
 
 		hdev->ibh_mrs[i] = mr;
 	}
@@ -2454,14 +2397,14 @@ out:
 	return 0;
 }
 
-static int
-kiblnd_dummy_callback(struct rdma_cm_id *cmid, struct rdma_cm_event *event)
-{       /* DUMMY */
+/* DUMMY */
+static int kiblnd_dummy_callback(struct rdma_cm_id *cmid,
+				 struct rdma_cm_event *event)
+{
 	return 0;
 }
 
-static int
-kiblnd_dev_need_failover(kib_dev_t *dev)
+static int kiblnd_dev_need_failover(kib_dev_t *dev)
 {
 	struct rdma_cm_id  *cmid;
 	struct sockaddr_in  srcaddr;
@@ -2516,12 +2459,11 @@ kiblnd_dev_need_failover(kib_dev_t *dev)
 	return 1;
 }
 
-int
-kiblnd_dev_failover(kib_dev_t *dev)
+int kiblnd_dev_failover(kib_dev_t *dev)
 {
-	LIST_HEAD      (zombie_tpo);
-	LIST_HEAD      (zombie_ppo);
-	LIST_HEAD      (zombie_fpo);
+	LIST_HEAD(zombie_tpo);
+	LIST_HEAD(zombie_ppo);
+	LIST_HEAD(zombie_fpo);
 	struct rdma_cm_id  *cmid  = NULL;
 	kib_hca_dev_t      *hdev  = NULL;
 	kib_hca_dev_t      *old;
@@ -2532,7 +2474,7 @@ kiblnd_dev_failover(kib_dev_t *dev)
 	int		 rc = 0;
 	int		    i;
 
-	LASSERT (*kiblnd_tunables.kib_dev_failover > 1 ||
+	LASSERT(*kiblnd_tunables.kib_dev_failover > 1 ||
 		 dev->ibd_can_failover ||
 		 dev->ibd_hdev == NULL);
 
@@ -2655,11 +2597,10 @@ kiblnd_dev_failover(kib_dev_t *dev)
 	return rc;
 }
 
-void
-kiblnd_destroy_dev (kib_dev_t *dev)
+void kiblnd_destroy_dev(kib_dev_t *dev)
 {
-	LASSERT (dev->ibd_nnets == 0);
-	LASSERT (list_empty(&dev->ibd_nets));
+	LASSERT(dev->ibd_nnets == 0);
+	LASSERT(list_empty(&dev->ibd_nets));
 
 	list_del(&dev->ibd_fail_list);
 	list_del(&dev->ibd_list);
@@ -2670,8 +2611,7 @@ kiblnd_destroy_dev (kib_dev_t *dev)
 	LIBCFS_FREE(dev, sizeof(*dev));
 }
 
-static kib_dev_t *
-kiblnd_create_dev(char *ifname)
+static kib_dev_t *kiblnd_create_dev(char *ifname)
 {
 	struct net_device *netdev;
 	kib_dev_t	 *dev;
@@ -2723,13 +2663,12 @@ kiblnd_create_dev(char *ifname)
 	return dev;
 }
 
-static void
-kiblnd_base_shutdown(void)
+static void kiblnd_base_shutdown(void)
 {
 	struct kib_sched_info	*sched;
 	int			i;
 
-	LASSERT (list_empty(&kiblnd_data.kib_devs));
+	LASSERT(list_empty(&kiblnd_data.kib_devs));
 
 	CDEBUG(D_MALLOC, "before LND base cleanup: kmem %d\n",
 	       atomic_read(&libcfs_kmemory));
@@ -2740,12 +2679,11 @@ kiblnd_base_shutdown(void)
 
 	case IBLND_INIT_ALL:
 	case IBLND_INIT_DATA:
-		LASSERT (kiblnd_data.kib_peers != NULL);
-		for (i = 0; i < kiblnd_data.kib_peer_hash_size; i++) {
-			LASSERT (list_empty(&kiblnd_data.kib_peers[i]));
-		}
-		LASSERT (list_empty(&kiblnd_data.kib_connd_zombies));
-		LASSERT (list_empty(&kiblnd_data.kib_connd_conns));
+		LASSERT(kiblnd_data.kib_peers != NULL);
+		for (i = 0; i < kiblnd_data.kib_peer_hash_size; i++)
+			LASSERT(list_empty(&kiblnd_data.kib_peers[i]));
+		LASSERT(list_empty(&kiblnd_data.kib_connd_zombies));
+		LASSERT(list_empty(&kiblnd_data.kib_connd_conns));
 
 		/* flag threads to terminate; wake and wait for them to die */
 		kiblnd_data.kib_shutdown = 1;
@@ -2762,7 +2700,8 @@ kiblnd_base_shutdown(void)
 		i = 2;
 		while (atomic_read(&kiblnd_data.kib_nthreads) != 0) {
 			i++;
-			CDEBUG(((i & (-i)) == i) ? D_WARNING : D_NET, /* power of 2? */
+			/* power of 2 ? */
+			CDEBUG(((i & (-i)) == i) ? D_WARNING : D_NET,
 			       "Waiting for %d threads to terminate\n",
 			       atomic_read(&kiblnd_data.kib_nthreads));
 			set_current_state(TASK_UNINTERRUPTIBLE);
@@ -2791,8 +2730,7 @@ kiblnd_base_shutdown(void)
 	module_put(THIS_MODULE);
 }
 
-void
-kiblnd_shutdown (lnet_ni_t *ni)
+void kiblnd_shutdown(lnet_ni_t *ni)
 {
 	kib_net_t	*net = ni->ni_data;
 	rwlock_t     *g_lock = &kiblnd_data.kib_global_lock;
@@ -2842,7 +2780,7 @@ kiblnd_shutdown (lnet_ni_t *ni)
 		/* fall through */
 
 	case IBLND_INIT_NOTHING:
-		LASSERT (atomic_read(&net->ibn_nconns) == 0);
+		LASSERT(atomic_read(&net->ibn_nconns) == 0);
 
 		if (net->ibn_dev != NULL &&
 		    net->ibn_dev->ibd_nnets == 0)
@@ -2862,20 +2800,19 @@ kiblnd_shutdown (lnet_ni_t *ni)
 out:
 	if (list_empty(&kiblnd_data.kib_devs))
 		kiblnd_base_shutdown();
-	return;
 }
 
-static int
-kiblnd_base_startup(void)
+static int kiblnd_base_startup(void)
 {
 	struct kib_sched_info	*sched;
 	int			rc;
 	int			i;
 
-	LASSERT (kiblnd_data.kib_init == IBLND_INIT_NOTHING);
+	LASSERT(kiblnd_data.kib_init == IBLND_INIT_NOTHING);
 
 	try_module_get(THIS_MODULE);
-	memset(&kiblnd_data, 0, sizeof(kiblnd_data)); /* zero pointers, flags etc */
+	/* zero pointers, flags etc */
+	memset(&kiblnd_data, 0, sizeof(kiblnd_data));
 
 	rwlock_init(&kiblnd_data.kib_global_lock);
 
@@ -2886,9 +2823,8 @@ kiblnd_base_startup(void)
 	LIBCFS_ALLOC(kiblnd_data.kib_peers,
 		     sizeof(struct list_head) *
 			    kiblnd_data.kib_peer_hash_size);
-	if (kiblnd_data.kib_peers == NULL) {
+	if (kiblnd_data.kib_peers == NULL)
 		goto failed;
-	}
 	for (i = 0; i < kiblnd_data.kib_peer_hash_size; i++)
 		INIT_LIST_HEAD(&kiblnd_data.kib_peers[i]);
 
@@ -2955,8 +2891,7 @@ kiblnd_base_startup(void)
 	return -ENETDOWN;
 }
 
-static int
-kiblnd_start_schedulers(struct kib_sched_info *sched)
+static int kiblnd_start_schedulers(struct kib_sched_info *sched)
 {
 	int	rc = 0;
 	int	nthrs;
@@ -2974,12 +2909,13 @@ kiblnd_start_schedulers(struct kib_sched_info *sched)
 	} else {
 		LASSERT(sched->ibs_nthreads <= sched->ibs_nthreads_max);
 		/* increase one thread if there is new interface */
-		nthrs = (sched->ibs_nthreads < sched->ibs_nthreads_max);
+		nthrs = sched->ibs_nthreads < sched->ibs_nthreads_max;
 	}
 
 	for (i = 0; i < nthrs; i++) {
 		long	id;
 		char	name[20];
+
 		id = KIB_THREAD_ID(sched->ibs_cpt, sched->ibs_nthreads + i);
 		snprintf(name, sizeof(name), "kiblnd_sd_%02ld_%02ld",
 			 KIB_THREAD_CPT(id), KIB_THREAD_TID(id));
@@ -2996,8 +2932,8 @@ kiblnd_start_schedulers(struct kib_sched_info *sched)
 	return rc;
 }
 
-static int
-kiblnd_dev_start_threads(kib_dev_t *dev, int newdev, __u32 *cpts, int ncpts)
+static int kiblnd_dev_start_threads(kib_dev_t *dev, int newdev, __u32 *cpts,
+				    int ncpts)
 {
 	int	cpt;
 	int	rc;
@@ -3022,8 +2958,7 @@ kiblnd_dev_start_threads(kib_dev_t *dev, int newdev, __u32 *cpts, int ncpts)
 	return 0;
 }
 
-static kib_dev_t *
-kiblnd_dev_search(char *ifname)
+static kib_dev_t *kiblnd_dev_search(char *ifname)
 {
 	kib_dev_t	*alias = NULL;
 	kib_dev_t	*dev;
@@ -3055,8 +2990,7 @@ kiblnd_dev_search(char *ifname)
 	return alias;
 }
 
-int
-kiblnd_startup (lnet_ni_t *ni)
+int kiblnd_startup(lnet_ni_t *ni)
 {
 	char		     *ifname;
 	kib_dev_t		*ibdev = NULL;
@@ -3066,7 +3000,7 @@ kiblnd_startup (lnet_ni_t *ni)
 	int		       rc;
 	int			  newdev;
 
-	LASSERT (ni->ni_lnd == &the_o2iblnd);
+	LASSERT(ni->ni_lnd == &the_o2iblnd);
 
 	if (kiblnd_data.kib_init == IBLND_INIT_NOTHING) {
 		rc = kiblnd_base_startup();
@@ -3090,7 +3024,7 @@ kiblnd_startup (lnet_ni_t *ni)
 	if (ni->ni_interfaces[0] != NULL) {
 		/* Use the IPoIB interface specified in 'networks=' */
 
-		CLASSERT (LNET_MAX_INTERFACES > 1);
+		CLASSERT(LNET_MAX_INTERFACES > 1);
 		if (ni->ni_interfaces[1] != NULL) {
 			CERROR("Multiple interfaces not supported\n");
 			goto failed;
@@ -3150,22 +3084,22 @@ net_failed:
 	return -ENETDOWN;
 }
 
-static void __exit
-kiblnd_module_fini (void)
+static void __exit kiblnd_module_fini(void)
 {
 	lnet_unregister_lnd(&the_o2iblnd);
 }
 
-static int __init
-kiblnd_module_init (void)
+static int __init kiblnd_module_init(void)
 {
 	int    rc;
 
-	CLASSERT (sizeof(kib_msg_t) <= IBLND_MSG_SIZE);
-	CLASSERT (offsetof(kib_msg_t, ibm_u.get.ibgm_rd.rd_frags[IBLND_MAX_RDMA_FRAGS])
-		  <= IBLND_MSG_SIZE);
-	CLASSERT (offsetof(kib_msg_t, ibm_u.putack.ibpam_rd.rd_frags[IBLND_MAX_RDMA_FRAGS])
-		  <= IBLND_MSG_SIZE);
+	CLASSERT(sizeof(kib_msg_t) <= IBLND_MSG_SIZE);
+	CLASSERT(offsetof(kib_msg_t,
+		ibm_u.get.ibgm_rd.rd_frags[IBLND_MAX_RDMA_FRAGS])
+		<= IBLND_MSG_SIZE);
+	CLASSERT(offsetof(kib_msg_t,
+		ibm_u.putack.ibpam_rd.rd_frags[IBLND_MAX_RDMA_FRAGS])
+		<= IBLND_MSG_SIZE);
 
 	rc = kiblnd_tunables_init();
 	if (rc != 0)
diff --git a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h
index ab128de..cd664d0 100644
--- a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h
+++ b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h
@@ -46,8 +46,8 @@
 #include <linux/errno.h>
 #include <linux/unistd.h>
 #include <linux/uio.h>
+#include <linux/uaccess.h>
 
-#include <asm/uaccess.h>
 #include <asm/io.h>
 
 #include <linux/fs.h>
diff --git a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c
index 48d885d..dbf3749 100644
--- a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c
+++ b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c
@@ -41,19 +41,19 @@
 #include "o2iblnd.h"
 
 static void
-kiblnd_tx_done (lnet_ni_t *ni, kib_tx_t *tx)
+kiblnd_tx_done(lnet_ni_t *ni, kib_tx_t *tx)
 {
 	lnet_msg_t *lntmsg[2];
 	kib_net_t  *net = ni->ni_data;
 	int	 rc;
 	int	 i;
 
-	LASSERT (net != NULL);
-	LASSERT (!in_interrupt());
-	LASSERT (!tx->tx_queued);	       /* mustn't be queued for sending */
-	LASSERT (tx->tx_sending == 0);	  /* mustn't be awaiting sent callback */
-	LASSERT (!tx->tx_waiting);	      /* mustn't be awaiting peer response */
-	LASSERT (tx->tx_pool != NULL);
+	LASSERT(net != NULL);
+	LASSERT(!in_interrupt());
+	LASSERT(!tx->tx_queued);	       /* mustn't be queued for sending */
+	LASSERT(tx->tx_sending == 0);	  /* mustn't be awaiting sent callback */
+	LASSERT(!tx->tx_waiting);	      /* mustn't be awaiting peer response */
+	LASSERT(tx->tx_pool != NULL);
 
 	kiblnd_unmap_tx(ni, tx);
 
@@ -63,7 +63,7 @@ kiblnd_tx_done (lnet_ni_t *ni, kib_tx_t *tx)
 	rc = tx->tx_status;
 
 	if (tx->tx_conn != NULL) {
-		LASSERT (ni == tx->tx_conn->ibc_peer->ibp_ni);
+		LASSERT(ni == tx->tx_conn->ibc_peer->ibp_ni);
 
 		kiblnd_conn_decref(tx->tx_conn);
 		tx->tx_conn = NULL;
@@ -84,12 +84,12 @@ kiblnd_tx_done (lnet_ni_t *ni, kib_tx_t *tx)
 }
 
 void
-kiblnd_txlist_done (lnet_ni_t *ni, struct list_head *txlist, int status)
+kiblnd_txlist_done(lnet_ni_t *ni, struct list_head *txlist, int status)
 {
 	kib_tx_t *tx;
 
-	while (!list_empty (txlist)) {
-		tx = list_entry (txlist->next, kib_tx_t, tx_list);
+	while (!list_empty(txlist)) {
+		tx = list_entry(txlist->next, kib_tx_t, tx_list);
 
 		list_del(&tx->tx_list);
 		/* complete now */
@@ -113,16 +113,16 @@ kiblnd_get_idle_tx(lnet_ni_t *ni, lnet_nid_t target)
 		return NULL;
 	tx = container_of(node, kib_tx_t, tx_list);
 
-	LASSERT (tx->tx_nwrq == 0);
-	LASSERT (!tx->tx_queued);
-	LASSERT (tx->tx_sending == 0);
-	LASSERT (!tx->tx_waiting);
-	LASSERT (tx->tx_status == 0);
-	LASSERT (tx->tx_conn == NULL);
-	LASSERT (tx->tx_lntmsg[0] == NULL);
-	LASSERT (tx->tx_lntmsg[1] == NULL);
-	LASSERT (tx->tx_u.pmr == NULL);
-	LASSERT (tx->tx_nfrags == 0);
+	LASSERT(tx->tx_nwrq == 0);
+	LASSERT(!tx->tx_queued);
+	LASSERT(tx->tx_sending == 0);
+	LASSERT(!tx->tx_waiting);
+	LASSERT(tx->tx_status == 0);
+	LASSERT(tx->tx_conn == NULL);
+	LASSERT(tx->tx_lntmsg[0] == NULL);
+	LASSERT(tx->tx_lntmsg[1] == NULL);
+	LASSERT(tx->tx_u.pmr == NULL);
+	LASSERT(tx->tx_nfrags == 0);
 
 	return tx;
 }
@@ -143,7 +143,7 @@ kiblnd_drop_rx(kib_rx_t *rx)
 }
 
 int
-kiblnd_post_rx (kib_rx_t *rx, int credit)
+kiblnd_post_rx(kib_rx_t *rx, int credit)
 {
 	kib_conn_t	 *conn = rx->rx_conn;
 	kib_net_t	  *net = conn->ibc_peer->ibp_ni->ni_data;
@@ -151,14 +151,14 @@ kiblnd_post_rx (kib_rx_t *rx, int credit)
 	struct ib_mr       *mr;
 	int		 rc;
 
-	LASSERT (net != NULL);
-	LASSERT (!in_interrupt());
-	LASSERT (credit == IBLND_POSTRX_NO_CREDIT ||
-		 credit == IBLND_POSTRX_PEER_CREDIT ||
-		 credit == IBLND_POSTRX_RSRVD_CREDIT);
+	LASSERT(net != NULL);
+	LASSERT(!in_interrupt());
+	LASSERT(credit == IBLND_POSTRX_NO_CREDIT ||
+		credit == IBLND_POSTRX_PEER_CREDIT ||
+		credit == IBLND_POSTRX_RSRVD_CREDIT);
 
 	mr = kiblnd_find_dma_mr(conn->ibc_hdev, rx->rx_msgaddr, IBLND_MSG_SIZE);
-	LASSERT (mr != NULL);
+	LASSERT(mr != NULL);
 
 	rx->rx_sge.lkey   = mr->lkey;
 	rx->rx_sge.addr   = rx->rx_msgaddr;
@@ -169,8 +169,8 @@ kiblnd_post_rx (kib_rx_t *rx, int credit)
 	rx->rx_wrq.num_sge = 1;
 	rx->rx_wrq.wr_id = kiblnd_ptr2wreqid(rx, IBLND_WID_RX);
 
-	LASSERT (conn->ibc_state >= IBLND_CONN_INIT);
-	LASSERT (rx->rx_nob >= 0);	      /* not posted */
+	LASSERT(conn->ibc_state >= IBLND_CONN_INIT);
+	LASSERT(rx->rx_nob >= 0);	      /* not posted */
 
 	if (conn->ibc_state > IBLND_CONN_ESTABLISHED) {
 		kiblnd_drop_rx(rx);	     /* No more posts for this rx */
@@ -217,8 +217,8 @@ kiblnd_find_waiting_tx_locked(kib_conn_t *conn, int txtype, __u64 cookie)
 	list_for_each(tmp, &conn->ibc_active_txs) {
 		kib_tx_t *tx = list_entry(tmp, kib_tx_t, tx_list);
 
-		LASSERT (!tx->tx_queued);
-		LASSERT (tx->tx_sending != 0 || tx->tx_waiting);
+		LASSERT(!tx->tx_queued);
+		LASSERT(tx->tx_sending != 0 || tx->tx_waiting);
 
 		if (tx->tx_cookie != cookie)
 			continue;
@@ -293,7 +293,7 @@ kiblnd_send_completion(kib_conn_t *conn, int type, int status, __u64 cookie)
 }
 
 static void
-kiblnd_handle_rx (kib_rx_t *rx)
+kiblnd_handle_rx(kib_rx_t *rx)
 {
 	kib_msg_t    *msg = rx->rx_msg;
 	kib_conn_t   *conn = rx->rx_conn;
@@ -304,11 +304,11 @@ kiblnd_handle_rx (kib_rx_t *rx)
 	int	   rc2;
 	int	   post_credit;
 
-	LASSERT (conn->ibc_state >= IBLND_CONN_ESTABLISHED);
+	LASSERT(conn->ibc_state >= IBLND_CONN_ESTABLISHED);
 
-	CDEBUG (D_NET, "Received %x[%d] from %s\n",
-		msg->ibm_type, credits,
-		libcfs_nid2str(conn->ibc_peer->ibp_nid));
+	CDEBUG(D_NET, "Received %x[%d] from %s\n",
+	       msg->ibm_type, credits,
+	       libcfs_nid2str(conn->ibc_peer->ibp_nid));
 
 	if (credits != 0) {
 		/* Have I received credits that will let me send? */
@@ -377,8 +377,8 @@ kiblnd_handle_rx (kib_rx_t *rx)
 		break;
 
 	case IBLND_MSG_PUT_NAK:
-		CWARN ("PUT_NACK from %s\n",
-		       libcfs_nid2str(conn->ibc_peer->ibp_nid));
+		CWARN("PUT_NACK from %s\n",
+		      libcfs_nid2str(conn->ibc_peer->ibp_nid));
 		post_credit = IBLND_POSTRX_RSRVD_CREDIT;
 		kiblnd_handle_completion(conn, IBLND_MSG_PUT_REQ,
 					 msg->ibm_u.completion.ibcm_status,
@@ -402,7 +402,7 @@ kiblnd_handle_rx (kib_rx_t *rx)
 			break;
 		}
 
-		LASSERT (tx->tx_waiting);
+		LASSERT(tx->tx_waiting);
 		/* CAVEAT EMPTOR: I could be racing with tx_complete, but...
 		 * (a) I can overwrite tx_msg since my peer has received it!
 		 * (b) tx_waiting set tells tx_complete() it's not done. */
@@ -454,7 +454,7 @@ kiblnd_handle_rx (kib_rx_t *rx)
 }
 
 static void
-kiblnd_rx_complete (kib_rx_t *rx, int status, int nob)
+kiblnd_rx_complete(kib_rx_t *rx, int status, int nob)
 {
 	kib_msg_t    *msg = rx->rx_msg;
 	kib_conn_t   *conn = rx->rx_conn;
@@ -463,8 +463,8 @@ kiblnd_rx_complete (kib_rx_t *rx, int status, int nob)
 	int	   rc;
 	int	   err = -EIO;
 
-	LASSERT (net != NULL);
-	LASSERT (rx->rx_nob < 0);	       /* was posted */
+	LASSERT(net != NULL);
+	LASSERT(rx->rx_nob < 0);	       /* was posted */
 	rx->rx_nob = 0;			 /* isn't now */
 
 	if (conn->ibc_state > IBLND_CONN_ESTABLISHED)
@@ -476,12 +476,12 @@ kiblnd_rx_complete (kib_rx_t *rx, int status, int nob)
 		goto failed;
 	}
 
-	LASSERT (nob >= 0);
+	LASSERT(nob >= 0);
 	rx->rx_nob = nob;
 
 	rc = kiblnd_unpack_msg(msg, rx->rx_nob);
 	if (rc != 0) {
-		CERROR ("Error %d unpacking rx from %s\n",
+		CERROR("Error %d unpacking rx from %s\n",
 			rc, libcfs_nid2str(conn->ibc_peer->ibp_nid));
 		goto failed;
 	}
@@ -490,7 +490,7 @@ kiblnd_rx_complete (kib_rx_t *rx, int status, int nob)
 	    msg->ibm_dstnid != ni->ni_nid ||
 	    msg->ibm_srcstamp != conn->ibc_incarnation ||
 	    msg->ibm_dststamp != net->ibn_incarnation) {
-		CERROR ("Stale rx from %s\n",
+		CERROR("Stale rx from %s\n",
 			libcfs_nid2str(conn->ibc_peer->ibp_nid));
 		err = -ESTALE;
 		goto failed;
@@ -525,13 +525,13 @@ kiblnd_rx_complete (kib_rx_t *rx, int status, int nob)
 }
 
 static struct page *
-kiblnd_kvaddr_to_page (unsigned long vaddr)
+kiblnd_kvaddr_to_page(unsigned long vaddr)
 {
 	struct page *page;
 
 	if (is_vmalloc_addr((void *)vaddr)) {
-		page = vmalloc_to_page ((void *)vaddr);
-		LASSERT (page != NULL);
+		page = vmalloc_to_page((void *)vaddr);
+		LASSERT(page != NULL);
 		return page;
 	}
 #ifdef CONFIG_HIGHMEM
@@ -542,8 +542,8 @@ kiblnd_kvaddr_to_page (unsigned long vaddr)
 		LBUG();
 	}
 #endif
-	page = virt_to_page (vaddr);
-	LASSERT (page != NULL);
+	page = virt_to_page(vaddr);
+	LASSERT(page != NULL);
 	return page;
 }
 
@@ -567,7 +567,7 @@ kiblnd_fmr_map_tx(kib_net_t *net, kib_tx_t *tx, kib_rdma_desc_t *rd, int nob)
 	for (i = 0, npages = 0; i < rd->rd_nfrags; i++) {
 		for (size = 0; size <  rd->rd_frags[i].rf_nob;
 			       size += hdev->ibh_page_size) {
-			pages[npages ++] = (rd->rd_frags[i].rf_addr &
+			pages[npages++] = (rd->rd_frags[i].rf_addr &
 					    hdev->ibh_page_mask) + size;
 		}
 	}
@@ -577,7 +577,7 @@ kiblnd_fmr_map_tx(kib_net_t *net, kib_tx_t *tx, kib_rdma_desc_t *rd, int nob)
 	fps = net->ibn_fmr_ps[cpt];
 	rc = kiblnd_fmr_pool_map(fps, pages, npages, 0, &tx->tx_u.fmr);
 	if (rc != 0) {
-		CERROR ("Can't map %d pages: %d\n", npages, rc);
+		CERROR("Can't map %d pages: %d\n", npages, rc);
 		return rc;
 	}
 
@@ -706,26 +706,26 @@ kiblnd_setup_rd_iov(lnet_ni_t *ni, kib_tx_t *tx, kib_rdma_desc_t *rd,
 	int		 fragnob;
 	int		 page_offset;
 
-	LASSERT (nob > 0);
-	LASSERT (niov > 0);
-	LASSERT (net != NULL);
+	LASSERT(nob > 0);
+	LASSERT(niov > 0);
+	LASSERT(net != NULL);
 
 	while (offset >= iov->iov_len) {
 		offset -= iov->iov_len;
 		niov--;
 		iov++;
-		LASSERT (niov > 0);
+		LASSERT(niov > 0);
 	}
 
 	sg = tx->tx_frags;
 	do {
-		LASSERT (niov > 0);
+		LASSERT(niov > 0);
 
 		vaddr = ((unsigned long)iov->iov_base) + offset;
 		page_offset = vaddr & (PAGE_SIZE - 1);
 		page = kiblnd_kvaddr_to_page(vaddr);
 		if (page == NULL) {
-			CERROR ("Can't find page\n");
+			CERROR("Can't find page\n");
 			return -EFAULT;
 		}
 
@@ -749,7 +749,7 @@ kiblnd_setup_rd_iov(lnet_ni_t *ni, kib_tx_t *tx, kib_rdma_desc_t *rd,
 }
 
 static int
-kiblnd_setup_rd_kiov (lnet_ni_t *ni, kib_tx_t *tx, kib_rdma_desc_t *rd,
+kiblnd_setup_rd_kiov(lnet_ni_t *ni, kib_tx_t *tx, kib_rdma_desc_t *rd,
 		      int nkiov, lnet_kiov_t *kiov, int offset, int nob)
 {
 	kib_net_t	  *net = ni->ni_data;
@@ -758,20 +758,20 @@ kiblnd_setup_rd_kiov (lnet_ni_t *ni, kib_tx_t *tx, kib_rdma_desc_t *rd,
 
 	CDEBUG(D_NET, "niov %d offset %d nob %d\n", nkiov, offset, nob);
 
-	LASSERT (nob > 0);
-	LASSERT (nkiov > 0);
-	LASSERT (net != NULL);
+	LASSERT(nob > 0);
+	LASSERT(nkiov > 0);
+	LASSERT(net != NULL);
 
 	while (offset >= kiov->kiov_len) {
 		offset -= kiov->kiov_len;
 		nkiov--;
 		kiov++;
-		LASSERT (nkiov > 0);
+		LASSERT(nkiov > 0);
 	}
 
 	sg = tx->tx_frags;
 	do {
-		LASSERT (nkiov > 0);
+		LASSERT(nkiov > 0);
 
 		fragnob = min((int)(kiov->kiov_len - offset), nob);
 
@@ -789,7 +789,7 @@ kiblnd_setup_rd_kiov (lnet_ni_t *ni, kib_tx_t *tx, kib_rdma_desc_t *rd,
 }
 
 static int
-kiblnd_post_tx_locked (kib_conn_t *conn, kib_tx_t *tx, int credit)
+kiblnd_post_tx_locked(kib_conn_t *conn, kib_tx_t *tx, int credit)
 	__releases(conn->ibc_lock)
 	__acquires(conn->ibc_lock)
 {
@@ -800,16 +800,16 @@ kiblnd_post_tx_locked (kib_conn_t *conn, kib_tx_t *tx, int credit)
 	int		done;
 	struct ib_send_wr *bad_wrq;
 
-	LASSERT (tx->tx_queued);
+	LASSERT(tx->tx_queued);
 	/* We rely on this for QP sizing */
-	LASSERT (tx->tx_nwrq > 0);
-	LASSERT (tx->tx_nwrq <= 1 + IBLND_RDMA_FRAGS(ver));
+	LASSERT(tx->tx_nwrq > 0);
+	LASSERT(tx->tx_nwrq <= 1 + IBLND_RDMA_FRAGS(ver));
 
-	LASSERT (credit == 0 || credit == 1);
-	LASSERT (conn->ibc_outstanding_credits >= 0);
-	LASSERT (conn->ibc_outstanding_credits <= IBLND_MSG_QUEUE_SIZE(ver));
-	LASSERT (conn->ibc_credits >= 0);
-	LASSERT (conn->ibc_credits <= IBLND_MSG_QUEUE_SIZE(ver));
+	LASSERT(credit == 0 || credit == 1);
+	LASSERT(conn->ibc_outstanding_credits >= 0);
+	LASSERT(conn->ibc_outstanding_credits <= IBLND_MSG_QUEUE_SIZE(ver));
+	LASSERT(conn->ibc_credits >= 0);
+	LASSERT(conn->ibc_credits <= IBLND_MSG_QUEUE_SIZE(ver));
 
 	if (conn->ibc_nsends_posted == IBLND_CONCURRENT_SENDS(ver)) {
 		/* tx completions outstanding... */
@@ -923,7 +923,7 @@ kiblnd_post_tx_locked (kib_conn_t *conn, kib_tx_t *tx, int credit)
 }
 
 void
-kiblnd_check_sends (kib_conn_t *conn)
+kiblnd_check_sends(kib_conn_t *conn)
 {
 	int	ver = conn->ibc_version;
 	lnet_ni_t *ni = conn->ibc_peer->ibp_ni;
@@ -938,10 +938,10 @@ kiblnd_check_sends (kib_conn_t *conn)
 
 	spin_lock(&conn->ibc_lock);
 
-	LASSERT (conn->ibc_nsends_posted <= IBLND_CONCURRENT_SENDS(ver));
-	LASSERT (!IBLND_OOB_CAPABLE(ver) ||
+	LASSERT(conn->ibc_nsends_posted <= IBLND_CONCURRENT_SENDS(ver));
+	LASSERT(!IBLND_OOB_CAPABLE(ver) ||
 		 conn->ibc_noops_posted <= IBLND_OOB_MSGS(ver));
-	LASSERT (conn->ibc_reserved_credits >= 0);
+	LASSERT(conn->ibc_reserved_credits >= 0);
 
 	while (conn->ibc_reserved_credits > 0 &&
 	       !list_empty(&conn->ibc_tx_queue_rsrvd)) {
@@ -974,7 +974,7 @@ kiblnd_check_sends (kib_conn_t *conn)
 			tx = list_entry(conn->ibc_tx_queue_nocred.next,
 					    kib_tx_t, tx_list);
 		} else if (!list_empty(&conn->ibc_tx_noops)) {
-			LASSERT (!IBLND_OOB_CAPABLE(ver));
+			LASSERT(!IBLND_OOB_CAPABLE(ver));
 			credit = 1;
 			tx = list_entry(conn->ibc_tx_noops.next,
 					kib_tx_t, tx_list);
@@ -995,13 +995,13 @@ kiblnd_check_sends (kib_conn_t *conn)
 }
 
 static void
-kiblnd_tx_complete (kib_tx_t *tx, int status)
+kiblnd_tx_complete(kib_tx_t *tx, int status)
 {
 	int	   failed = (status != IB_WC_SUCCESS);
 	kib_conn_t   *conn = tx->tx_conn;
 	int	   idle;
 
-	LASSERT (tx->tx_sending > 0);
+	LASSERT(tx->tx_sending > 0);
 
 	if (failed) {
 		if (conn->ibc_state == IBLND_CONN_ESTABLISHED)
@@ -1049,22 +1049,22 @@ kiblnd_tx_complete (kib_tx_t *tx, int status)
 }
 
 void
-kiblnd_init_tx_msg (lnet_ni_t *ni, kib_tx_t *tx, int type, int body_nob)
+kiblnd_init_tx_msg(lnet_ni_t *ni, kib_tx_t *tx, int type, int body_nob)
 {
 	kib_hca_dev_t     *hdev = tx->tx_pool->tpo_hdev;
 	struct ib_sge     *sge = &tx->tx_sge[tx->tx_nwrq];
 	struct ib_send_wr *wrq = &tx->tx_wrq[tx->tx_nwrq];
-	int		nob = offsetof (kib_msg_t, ibm_u) + body_nob;
+	int		nob = offsetof(kib_msg_t, ibm_u) + body_nob;
 	struct ib_mr      *mr;
 
-	LASSERT (tx->tx_nwrq >= 0);
-	LASSERT (tx->tx_nwrq < IBLND_MAX_RDMA_FRAGS + 1);
-	LASSERT (nob <= IBLND_MSG_SIZE);
+	LASSERT(tx->tx_nwrq >= 0);
+	LASSERT(tx->tx_nwrq < IBLND_MAX_RDMA_FRAGS + 1);
+	LASSERT(nob <= IBLND_MSG_SIZE);
 
 	kiblnd_init_msg(tx->tx_msg, type, body_nob);
 
 	mr = kiblnd_find_dma_mr(hdev, tx->tx_msgaddr, nob);
-	LASSERT (mr != NULL);
+	LASSERT(mr != NULL);
 
 	sge->lkey   = mr->lkey;
 	sge->addr   = tx->tx_msgaddr;
@@ -1083,7 +1083,7 @@ kiblnd_init_tx_msg (lnet_ni_t *ni, kib_tx_t *tx, int type, int body_nob)
 }
 
 int
-kiblnd_init_rdma (kib_conn_t *conn, kib_tx_t *tx, int type,
+kiblnd_init_rdma(kib_conn_t *conn, kib_tx_t *tx, int type,
 		  int resid, kib_rdma_desc_t *dstrd, __u64 dstcookie)
 {
 	kib_msg_t	 *ibmsg = tx->tx_msg;
@@ -1095,9 +1095,9 @@ kiblnd_init_rdma (kib_conn_t *conn, kib_tx_t *tx, int type,
 	int		dstidx;
 	int		wrknob;
 
-	LASSERT (!in_interrupt());
-	LASSERT (tx->tx_nwrq == 0);
-	LASSERT (type == IBLND_MSG_GET_DONE ||
+	LASSERT(!in_interrupt());
+	LASSERT(tx->tx_nwrq == 0);
+	LASSERT(type == IBLND_MSG_GET_DONE ||
 		 type == IBLND_MSG_PUT_DONE);
 
 	srcidx = dstidx = 0;
@@ -1162,19 +1162,19 @@ kiblnd_init_rdma (kib_conn_t *conn, kib_tx_t *tx, int type,
 	ibmsg->ibm_u.completion.ibcm_status = rc;
 	ibmsg->ibm_u.completion.ibcm_cookie = dstcookie;
 	kiblnd_init_tx_msg(conn->ibc_peer->ibp_ni, tx,
-			   type, sizeof (kib_completion_msg_t));
+			   type, sizeof(kib_completion_msg_t));
 
 	return rc;
 }
 
 void
-kiblnd_queue_tx_locked (kib_tx_t *tx, kib_conn_t *conn)
+kiblnd_queue_tx_locked(kib_tx_t *tx, kib_conn_t *conn)
 {
 	struct list_head   *q;
 
-	LASSERT (tx->tx_nwrq > 0);	      /* work items set up */
-	LASSERT (!tx->tx_queued);	       /* not queued for sending already */
-	LASSERT (conn->ibc_state >= IBLND_CONN_ESTABLISHED);
+	LASSERT(tx->tx_nwrq > 0);	      /* work items set up */
+	LASSERT(!tx->tx_queued);	       /* not queued for sending already */
+	LASSERT(conn->ibc_state >= IBLND_CONN_ESTABLISHED);
 
 	tx->tx_queued = 1;
 	tx->tx_deadline = jiffies + (*kiblnd_tunables.kib_timeout * HZ);
@@ -1182,11 +1182,11 @@ kiblnd_queue_tx_locked (kib_tx_t *tx, kib_conn_t *conn)
 	if (tx->tx_conn == NULL) {
 		kiblnd_conn_addref(conn);
 		tx->tx_conn = conn;
-		LASSERT (tx->tx_msg->ibm_type != IBLND_MSG_PUT_DONE);
+		LASSERT(tx->tx_msg->ibm_type != IBLND_MSG_PUT_DONE);
 	} else {
 		/* PUT_DONE first attached to conn as a PUT_REQ */
-		LASSERT (tx->tx_conn == conn);
-		LASSERT (tx->tx_msg->ibm_type == IBLND_MSG_PUT_DONE);
+		LASSERT(tx->tx_conn == conn);
+		LASSERT(tx->tx_msg->ibm_type == IBLND_MSG_PUT_DONE);
 	}
 
 	switch (tx->tx_msg->ibm_type) {
@@ -1221,7 +1221,7 @@ kiblnd_queue_tx_locked (kib_tx_t *tx, kib_conn_t *conn)
 }
 
 void
-kiblnd_queue_tx (kib_tx_t *tx, kib_conn_t *conn)
+kiblnd_queue_tx(kib_tx_t *tx, kib_conn_t *conn)
 {
 	spin_lock(&conn->ibc_lock);
 	kiblnd_queue_tx_locked(tx, conn);
@@ -1268,7 +1268,7 @@ static int kiblnd_resolve_addr(struct rdma_cm_id *cmid,
 }
 
 static void
-kiblnd_connect_peer (kib_peer_t *peer)
+kiblnd_connect_peer(kib_peer_t *peer)
 {
 	struct rdma_cm_id *cmid;
 	kib_dev_t	 *dev;
@@ -1277,8 +1277,8 @@ kiblnd_connect_peer (kib_peer_t *peer)
 	struct sockaddr_in dstaddr;
 	int		rc;
 
-	LASSERT (net != NULL);
-	LASSERT (peer->ibp_connecting > 0);
+	LASSERT(net != NULL);
+	LASSERT(peer->ibp_connecting > 0);
 
 	cmid = kiblnd_rdma_create_id(kiblnd_cm_callback, peer, RDMA_PS_TCP,
 				     IB_QPT_RC);
@@ -1318,7 +1318,7 @@ kiblnd_connect_peer (kib_peer_t *peer)
 		goto failed2;
 	}
 
-	LASSERT (cmid->device != NULL);
+	LASSERT(cmid->device != NULL);
 	CDEBUG(D_NET, "%s: connection bound to %s:%pI4h:%s\n",
 	       libcfs_nid2str(peer->ibp_nid), dev->ibd_ifname,
 	       &dev->ibd_ifip, cmid->device->name);
@@ -1333,7 +1333,7 @@ kiblnd_connect_peer (kib_peer_t *peer)
 }
 
 void
-kiblnd_launch_tx (lnet_ni_t *ni, kib_tx_t *tx, lnet_nid_t nid)
+kiblnd_launch_tx(lnet_ni_t *ni, kib_tx_t *tx, lnet_nid_t nid)
 {
 	kib_peer_t	*peer;
 	kib_peer_t	*peer2;
@@ -1345,8 +1345,8 @@ kiblnd_launch_tx (lnet_ni_t *ni, kib_tx_t *tx, lnet_nid_t nid)
 	/* If I get here, I've committed to send, so I complete the tx with
 	 * failure on any problems */
 
-	LASSERT (tx == NULL || tx->tx_conn == NULL); /* only set when assigned a conn */
-	LASSERT (tx == NULL || tx->tx_nwrq > 0);     /* work items have been set up */
+	LASSERT(tx == NULL || tx->tx_conn == NULL); /* only set when assigned a conn */
+	LASSERT(tx == NULL || tx->tx_nwrq > 0);     /* work items have been set up */
 
 	/* First time, just use a read lock since I expect to find my peer
 	 * connected */
@@ -1374,7 +1374,7 @@ kiblnd_launch_tx (lnet_ni_t *ni, kib_tx_t *tx, lnet_nid_t nid)
 	if (peer != NULL) {
 		if (list_empty(&peer->ibp_conns)) {
 			/* found a peer, but it's still connecting... */
-			LASSERT (peer->ibp_connecting != 0 ||
+			LASSERT(peer->ibp_connecting != 0 ||
 				 peer->ibp_accepting != 0);
 			if (tx != NULL)
 				list_add_tail(&tx->tx_list,
@@ -1413,7 +1413,7 @@ kiblnd_launch_tx (lnet_ni_t *ni, kib_tx_t *tx, lnet_nid_t nid)
 	if (peer2 != NULL) {
 		if (list_empty(&peer2->ibp_conns)) {
 			/* found a peer, but it's still connecting... */
-			LASSERT (peer2->ibp_connecting != 0 ||
+			LASSERT(peer2->ibp_connecting != 0 ||
 				 peer2->ibp_accepting != 0);
 			if (tx != NULL)
 				list_add_tail(&tx->tx_list,
@@ -1435,11 +1435,11 @@ kiblnd_launch_tx (lnet_ni_t *ni, kib_tx_t *tx, lnet_nid_t nid)
 	}
 
 	/* Brand new peer */
-	LASSERT (peer->ibp_connecting == 0);
+	LASSERT(peer->ibp_connecting == 0);
 	peer->ibp_connecting = 1;
 
 	/* always called with a ref on ni, which prevents ni being shutdown */
-	LASSERT (((kib_net_t *)ni->ni_data)->ibn_shutdown == 0);
+	LASSERT(((kib_net_t *)ni->ni_data)->ibn_shutdown == 0);
 
 	if (tx != NULL)
 		list_add_tail(&tx->tx_list, &peer->ibp_tx_queue);
@@ -1454,7 +1454,7 @@ kiblnd_launch_tx (lnet_ni_t *ni, kib_tx_t *tx, lnet_nid_t nid)
 }
 
 int
-kiblnd_send (lnet_ni_t *ni, void *private, lnet_msg_t *lntmsg)
+kiblnd_send(lnet_ni_t *ni, void *private, lnet_msg_t *lntmsg)
 {
 	lnet_hdr_t       *hdr = &lntmsg->msg_hdr;
 	int	       type = lntmsg->msg_type;
@@ -1476,13 +1476,13 @@ kiblnd_send (lnet_ni_t *ni, void *private, lnet_msg_t *lntmsg)
 	CDEBUG(D_NET, "sending %d bytes in %d frags to %s\n",
 	       payload_nob, payload_niov, libcfs_id2str(target));
 
-	LASSERT (payload_nob == 0 || payload_niov > 0);
-	LASSERT (payload_niov <= LNET_MAX_IOV);
+	LASSERT(payload_nob == 0 || payload_niov > 0);
+	LASSERT(payload_niov <= LNET_MAX_IOV);
 
 	/* Thread context */
-	LASSERT (!in_interrupt());
+	LASSERT(!in_interrupt());
 	/* payload is either all vaddrs or all pages */
-	LASSERT (!(payload_kiov != NULL && payload_iov != NULL));
+	LASSERT(!(payload_kiov != NULL && payload_iov != NULL));
 
 	switch (type) {
 	default:
@@ -1490,7 +1490,7 @@ kiblnd_send (lnet_ni_t *ni, void *private, lnet_msg_t *lntmsg)
 		return -EIO;
 
 	case LNET_MSG_ACK:
-		LASSERT (payload_nob == 0);
+		LASSERT(payload_nob == 0);
 		break;
 
 	case LNET_MSG_GET:
@@ -1592,12 +1592,12 @@ kiblnd_send (lnet_ni_t *ni, void *private, lnet_msg_t *lntmsg)
 
 	/* send IMMEDIATE */
 
-	LASSERT (offsetof(kib_msg_t, ibm_u.immediate.ibim_payload[payload_nob])
+	LASSERT(offsetof(kib_msg_t, ibm_u.immediate.ibim_payload[payload_nob])
 		 <= IBLND_MSG_SIZE);
 
 	tx = kiblnd_get_idle_tx(ni, target.nid);
 	if (tx == NULL) {
-		CERROR ("Can't send %d to %s: tx descs exhausted\n",
+		CERROR("Can't send %d to %s: tx descs exhausted\n",
 			type, libcfs_nid2str(target.nid));
 		return -ENOMEM;
 	}
@@ -1625,7 +1625,7 @@ kiblnd_send (lnet_ni_t *ni, void *private, lnet_msg_t *lntmsg)
 }
 
 static void
-kiblnd_reply (lnet_ni_t *ni, kib_rx_t *rx, lnet_msg_t *lntmsg)
+kiblnd_reply(lnet_ni_t *ni, kib_rx_t *rx, lnet_msg_t *lntmsg)
 {
 	lnet_process_id_t target = lntmsg->msg_target;
 	unsigned int      niov = lntmsg->msg_niov;
@@ -1687,7 +1687,7 @@ kiblnd_reply (lnet_ni_t *ni, kib_rx_t *rx, lnet_msg_t *lntmsg)
 }
 
 int
-kiblnd_recv (lnet_ni_t *ni, void *private, lnet_msg_t *lntmsg, int delayed,
+kiblnd_recv(lnet_ni_t *ni, void *private, lnet_msg_t *lntmsg, int delayed,
 	     unsigned int niov, struct kvec *iov, lnet_kiov_t *kiov,
 	     unsigned int offset, unsigned int mlen, unsigned int rlen)
 {
@@ -1700,10 +1700,10 @@ kiblnd_recv (lnet_ni_t *ni, void *private, lnet_msg_t *lntmsg, int delayed,
 	int	  post_credit = IBLND_POSTRX_PEER_CREDIT;
 	int	  rc = 0;
 
-	LASSERT (mlen <= rlen);
-	LASSERT (!in_interrupt());
+	LASSERT(mlen <= rlen);
+	LASSERT(!in_interrupt());
 	/* Either all pages or all vaddrs */
-	LASSERT (!(kiov != NULL && iov != NULL));
+	LASSERT(!(kiov != NULL && iov != NULL));
 
 	switch (rxmsg->ibm_type) {
 	default:
@@ -1712,7 +1712,7 @@ kiblnd_recv (lnet_ni_t *ni, void *private, lnet_msg_t *lntmsg, int delayed,
 	case IBLND_MSG_IMMEDIATE:
 		nob = offsetof(kib_msg_t, ibm_u.immediate.ibim_payload[rlen]);
 		if (nob > rx->rx_nob) {
-			CERROR ("Immediate message from %s too big: %d(%d)\n",
+			CERROR("Immediate message from %s too big: %d(%d)\n",
 				libcfs_nid2str(rxmsg->ibm_u.immediate.ibim_hdr.src_nid),
 				nob, rx->rx_nob);
 			rc = -EPROTO;
@@ -1729,7 +1729,7 @@ kiblnd_recv (lnet_ni_t *ni, void *private, lnet_msg_t *lntmsg, int delayed,
 					   IBLND_MSG_SIZE, rxmsg,
 					   offsetof(kib_msg_t, ibm_u.immediate.ibim_payload),
 					   mlen);
-		lnet_finalize (ni, lntmsg, 0);
+		lnet_finalize(ni, lntmsg, 0);
 		break;
 
 	case IBLND_MSG_PUT_REQ:
@@ -1812,13 +1812,13 @@ kiblnd_thread_start(int (*fn)(void *arg), void *arg, char *name)
 }
 
 static void
-kiblnd_thread_fini (void)
+kiblnd_thread_fini(void)
 {
-	atomic_dec (&kiblnd_data.kib_nthreads);
+	atomic_dec(&kiblnd_data.kib_nthreads);
 }
 
 void
-kiblnd_peer_alive (kib_peer_t *peer)
+kiblnd_peer_alive(kib_peer_t *peer)
 {
 	/* This is racy, but everyone's only writing cfs_time_current() */
 	peer->ibp_last_alive = cfs_time_current();
@@ -1826,7 +1826,7 @@ kiblnd_peer_alive (kib_peer_t *peer)
 }
 
 static void
-kiblnd_peer_notify (kib_peer_t *peer)
+kiblnd_peer_notify(kib_peer_t *peer)
 {
 	int	   error = 0;
 	unsigned long    last_alive = 0;
@@ -1852,7 +1852,7 @@ kiblnd_peer_notify (kib_peer_t *peer)
 }
 
 void
-kiblnd_close_conn_locked (kib_conn_t *conn, int error)
+kiblnd_close_conn_locked(kib_conn_t *conn, int error)
 {
 	/* This just does the immediate housekeeping.  'error' is zero for a
 	 * normal shutdown which can happen only after the connection has been
@@ -1864,7 +1864,7 @@ kiblnd_close_conn_locked (kib_conn_t *conn, int error)
 	kib_dev_t	*dev;
 	unsigned long     flags;
 
-	LASSERT (error != 0 || conn->ibc_state >= IBLND_CONN_ESTABLISHED);
+	LASSERT(error != 0 || conn->ibc_state >= IBLND_CONN_ESTABLISHED);
 
 	if (error != 0 && conn->ibc_comms_error == 0)
 		conn->ibc_comms_error = error;
@@ -1894,7 +1894,7 @@ kiblnd_close_conn_locked (kib_conn_t *conn, int error)
 	list_del(&conn->ibc_list);
 	/* connd (see below) takes over ibc_list's ref */
 
-	if (list_empty (&peer->ibp_conns) &&    /* no more conns */
+	if (list_empty(&peer->ibp_conns) &&    /* no more conns */
 	    kiblnd_peer_active(peer)) {	 /* still in peer table */
 		kiblnd_unlink_peer_locked(peer);
 
@@ -1936,14 +1936,13 @@ kiblnd_handle_early_rxs(kib_conn_t *conn)
 {
 	unsigned long    flags;
 	kib_rx_t	*rx;
+	kib_rx_t *tmp;
 
 	LASSERT(!in_interrupt());
 	LASSERT(conn->ibc_state >= IBLND_CONN_ESTABLISHED);
 
 	write_lock_irqsave(&kiblnd_data.kib_global_lock, flags);
-	while (!list_empty(&conn->ibc_early_rxs)) {
-		rx = list_entry(conn->ibc_early_rxs.next,
-				    kib_rx_t, rx_list);
+	list_for_each_entry_safe(rx, tmp, &conn->ibc_early_rxs, rx_list) {
 		list_del(&rx->rx_list);
 		write_unlock_irqrestore(&kiblnd_data.kib_global_lock, flags);
 
@@ -1957,22 +1956,22 @@ kiblnd_handle_early_rxs(kib_conn_t *conn)
 static void
 kiblnd_abort_txs(kib_conn_t *conn, struct list_head *txs)
 {
-	LIST_HEAD       (zombies);
+	LIST_HEAD(zombies);
 	struct list_head	  *tmp;
 	struct list_head	  *nxt;
 	kib_tx_t	    *tx;
 
 	spin_lock(&conn->ibc_lock);
 
-	list_for_each_safe (tmp, nxt, txs) {
-		tx = list_entry (tmp, kib_tx_t, tx_list);
+	list_for_each_safe(tmp, nxt, txs) {
+		tx = list_entry(tmp, kib_tx_t, tx_list);
 
 		if (txs == &conn->ibc_active_txs) {
-			LASSERT (!tx->tx_queued);
-			LASSERT (tx->tx_waiting ||
+			LASSERT(!tx->tx_queued);
+			LASSERT(tx->tx_waiting ||
 				 tx->tx_sending != 0);
 		} else {
-			LASSERT (tx->tx_queued);
+			LASSERT(tx->tx_queued);
 		}
 
 		tx->tx_status = -ECONNABORTED;
@@ -1980,8 +1979,8 @@ kiblnd_abort_txs(kib_conn_t *conn, struct list_head *txs)
 
 		if (tx->tx_sending == 0) {
 			tx->tx_queued = 0;
-			list_del (&tx->tx_list);
-			list_add (&tx->tx_list, &zombies);
+			list_del(&tx->tx_list);
+			list_add(&tx->tx_list, &zombies);
 		}
 	}
 
@@ -1991,10 +1990,10 @@ kiblnd_abort_txs(kib_conn_t *conn, struct list_head *txs)
 }
 
 static void
-kiblnd_finalise_conn (kib_conn_t *conn)
+kiblnd_finalise_conn(kib_conn_t *conn)
 {
-	LASSERT (!in_interrupt());
-	LASSERT (conn->ibc_state > IBLND_CONN_INIT);
+	LASSERT(!in_interrupt());
+	LASSERT(conn->ibc_state > IBLND_CONN_INIT);
 
 	kiblnd_set_conn_state(conn, IBLND_CONN_DISCONNECTED);
 
@@ -2016,21 +2015,21 @@ kiblnd_finalise_conn (kib_conn_t *conn)
 }
 
 void
-kiblnd_peer_connect_failed (kib_peer_t *peer, int active, int error)
+kiblnd_peer_connect_failed(kib_peer_t *peer, int active, int error)
 {
-	LIST_HEAD    (zombies);
+	LIST_HEAD(zombies);
 	unsigned long     flags;
 
-	LASSERT (error != 0);
-	LASSERT (!in_interrupt());
+	LASSERT(error != 0);
+	LASSERT(!in_interrupt());
 
 	write_lock_irqsave(&kiblnd_data.kib_global_lock, flags);
 
 	if (active) {
-		LASSERT (peer->ibp_connecting > 0);
+		LASSERT(peer->ibp_connecting > 0);
 		peer->ibp_connecting--;
 	} else {
-		LASSERT (peer->ibp_accepting > 0);
+		LASSERT(peer->ibp_accepting > 0);
 		peer->ibp_accepting--;
 	}
 
@@ -2053,14 +2052,14 @@ kiblnd_peer_connect_failed (kib_peer_t *peer, int active, int error)
 		peer->ibp_error = error;
 	} else {
 		/* Can't have blocked transmits if there are connections */
-		LASSERT (list_empty(&peer->ibp_tx_queue));
+		LASSERT(list_empty(&peer->ibp_tx_queue));
 	}
 
 	write_unlock_irqrestore(&kiblnd_data.kib_global_lock, flags);
 
 	kiblnd_peer_notify(peer);
 
-	if (list_empty (&zombies))
+	if (list_empty(&zombies))
 		return;
 
 	CNETERR("Deleting messages for %s: connection failed\n",
@@ -2074,6 +2073,7 @@ kiblnd_connreq_done(kib_conn_t *conn, int status)
 {
 	kib_peer_t	*peer = conn->ibc_peer;
 	kib_tx_t	  *tx;
+	kib_tx_t *tmp;
 	struct list_head	 txs;
 	unsigned long      flags;
 	int		active;
@@ -2084,8 +2084,8 @@ kiblnd_connreq_done(kib_conn_t *conn, int status)
 	       libcfs_nid2str(peer->ibp_nid), active,
 	       conn->ibc_version, status);
 
-	LASSERT (!in_interrupt());
-	LASSERT ((conn->ibc_state == IBLND_CONN_ACTIVE_CONNECT &&
+	LASSERT(!in_interrupt());
+	LASSERT((conn->ibc_state == IBLND_CONN_ACTIVE_CONNECT &&
 		  peer->ibp_connecting > 0) ||
 		 (conn->ibc_state == IBLND_CONN_PASSIVE_WAIT &&
 		  peer->ibp_accepting > 0));
@@ -2150,8 +2150,7 @@ kiblnd_connreq_done(kib_conn_t *conn, int status)
 
 	/* Schedule blocked txs */
 	spin_lock(&conn->ibc_lock);
-	while (!list_empty(&txs)) {
-		tx = list_entry(txs.next, kib_tx_t, tx_list);
+	list_for_each_entry_safe(tx, tmp, &txs, tx_list) {
 		list_del(&tx->tx_list);
 
 		kiblnd_queue_tx_locked(tx, conn);
@@ -2176,7 +2175,7 @@ kiblnd_reject(struct rdma_cm_id *cmid, kib_rej_t *rej)
 }
 
 static int
-kiblnd_passive_connect (struct rdma_cm_id *cmid, void *priv, int priv_nob)
+kiblnd_passive_connect(struct rdma_cm_id *cmid, void *priv, int priv_nob)
 {
 	rwlock_t		*g_lock = &kiblnd_data.kib_global_lock;
 	kib_msg_t	     *reqmsg = priv;
@@ -2194,11 +2193,11 @@ kiblnd_passive_connect (struct rdma_cm_id *cmid, void *priv, int priv_nob)
 	unsigned long	  flags;
 	int		    rc;
 	struct sockaddr_in    *peer_addr;
-	LASSERT (!in_interrupt());
+	LASSERT(!in_interrupt());
 
 	/* cmid inherits 'context' from the corresponding listener id */
 	ibdev = (kib_dev_t *)cmid->context;
-	LASSERT (ibdev != NULL);
+	LASSERT(ibdev != NULL);
 
 	memset(&rej, 0, sizeof(rej));
 	rej.ibr_magic		= IBLND_MSG_MAGIC;
@@ -2366,8 +2365,8 @@ kiblnd_passive_connect (struct rdma_cm_id *cmid, void *priv, int priv_nob)
 		peer = peer2;
 	} else {
 		/* Brand new peer */
-		LASSERT (peer->ibp_accepting == 0);
-		LASSERT (peer->ibp_version == 0 &&
+		LASSERT(peer->ibp_accepting == 0);
+		LASSERT(peer->ibp_version == 0 &&
 			 peer->ibp_incarnation == 0);
 
 		peer->ibp_accepting   = 1;
@@ -2375,7 +2374,7 @@ kiblnd_passive_connect (struct rdma_cm_id *cmid, void *priv, int priv_nob)
 		peer->ibp_incarnation = reqmsg->ibm_srcstamp;
 
 		/* I have a ref on ni that prevents it being shutdown */
-		LASSERT (net->ibn_shutdown == 0);
+		LASSERT(net->ibn_shutdown == 0);
 
 		kiblnd_peer_addref(peer);
 		list_add_tail(&peer->ibp_list, kiblnd_nid2peerlist(nid));
@@ -2397,7 +2396,7 @@ kiblnd_passive_connect (struct rdma_cm_id *cmid, void *priv, int priv_nob)
 	conn->ibc_incarnation      = reqmsg->ibm_srcstamp;
 	conn->ibc_credits	  = IBLND_MSG_QUEUE_SIZE(version);
 	conn->ibc_reserved_credits = IBLND_MSG_QUEUE_SIZE(version);
-	LASSERT (conn->ibc_credits + conn->ibc_reserved_credits + IBLND_OOB_MSGS(version)
+	LASSERT(conn->ibc_credits + conn->ibc_reserved_credits + IBLND_OOB_MSGS(version)
 		 <= IBLND_RX_MSGS(version));
 
 	ackmsg = &conn->ibc_connvars->cv_msg;
@@ -2449,7 +2448,7 @@ kiblnd_passive_connect (struct rdma_cm_id *cmid, void *priv, int priv_nob)
 }
 
 static void
-kiblnd_reconnect (kib_conn_t *conn, int version,
+kiblnd_reconnect(kib_conn_t *conn, int version,
 		  __u64 incarnation, int why, kib_connparams_t *cp)
 {
 	kib_peer_t    *peer = conn->ibc_peer;
@@ -2457,8 +2456,8 @@ kiblnd_reconnect (kib_conn_t *conn, int version,
 	int	    retry = 0;
 	unsigned long  flags;
 
-	LASSERT (conn->ibc_state == IBLND_CONN_ACTIVE_CONNECT);
-	LASSERT (peer->ibp_connecting > 0);     /* 'conn' at least */
+	LASSERT(conn->ibc_state == IBLND_CONN_ACTIVE_CONNECT);
+	LASSERT(peer->ibp_connecting > 0);     /* 'conn' at least */
 
 	write_lock_irqsave(&kiblnd_data.kib_global_lock, flags);
 
@@ -2504,20 +2503,20 @@ kiblnd_reconnect (kib_conn_t *conn, int version,
 	CNETERR("%s: retrying (%s), %x, %x, queue_dep: %d, max_frag: %d, msg_size: %d\n",
 		libcfs_nid2str(peer->ibp_nid),
 		reason, IBLND_MSG_VERSION, version,
-		cp != NULL? cp->ibcp_queue_depth :IBLND_MSG_QUEUE_SIZE(version),
-		cp != NULL? cp->ibcp_max_frags   : IBLND_RDMA_FRAGS(version),
-		cp != NULL? cp->ibcp_max_msg_size: IBLND_MSG_SIZE);
+		cp != NULL ? cp->ibcp_queue_depth  : IBLND_MSG_QUEUE_SIZE(version),
+		cp != NULL ? cp->ibcp_max_frags    : IBLND_RDMA_FRAGS(version),
+		cp != NULL ? cp->ibcp_max_msg_size : IBLND_MSG_SIZE);
 
 	kiblnd_connect_peer(peer);
 }
 
 static void
-kiblnd_rejected (kib_conn_t *conn, int reason, void *priv, int priv_nob)
+kiblnd_rejected(kib_conn_t *conn, int reason, void *priv, int priv_nob)
 {
 	kib_peer_t    *peer = conn->ibc_peer;
 
-	LASSERT (!in_interrupt());
-	LASSERT (conn->ibc_state == IBLND_CONN_ACTIVE_CONNECT);
+	LASSERT(!in_interrupt());
+	LASSERT(conn->ibc_state == IBLND_CONN_ACTIVE_CONNECT);
 
 	switch (reason) {
 	case IB_CM_REJ_STALE_CONN:
@@ -2651,7 +2650,7 @@ kiblnd_rejected (kib_conn_t *conn, int reason, void *priv, int priv_nob)
 }
 
 static void
-kiblnd_check_connreply (kib_conn_t *conn, void *priv, int priv_nob)
+kiblnd_check_connreply(kib_conn_t *conn, void *priv, int priv_nob)
 {
 	kib_peer_t    *peer = conn->ibc_peer;
 	lnet_ni_t     *ni   = peer->ibp_ni;
@@ -2661,7 +2660,7 @@ kiblnd_check_connreply (kib_conn_t *conn, void *priv, int priv_nob)
 	int	    rc   = kiblnd_unpack_msg(msg, priv_nob);
 	unsigned long  flags;
 
-	LASSERT (net != NULL);
+	LASSERT(net != NULL);
 
 	if (rc != 0) {
 		CERROR("Can't unpack connack from %s: %d\n",
@@ -2730,7 +2729,7 @@ kiblnd_check_connreply (kib_conn_t *conn, void *priv, int priv_nob)
 	conn->ibc_incarnation      = msg->ibm_srcstamp;
 	conn->ibc_credits	  =
 	conn->ibc_reserved_credits = IBLND_MSG_QUEUE_SIZE(ver);
-	LASSERT (conn->ibc_credits + conn->ibc_reserved_credits + IBLND_OOB_MSGS(ver)
+	LASSERT(conn->ibc_credits + conn->ibc_reserved_credits + IBLND_OOB_MSGS(ver)
 		 <= IBLND_RX_MSGS(ver));
 
 	kiblnd_connreq_done(conn, 0);
@@ -2742,13 +2741,13 @@ kiblnd_check_connreply (kib_conn_t *conn, void *priv, int priv_nob)
 	 * kiblnd_connreq_done(0) moves the conn state to ESTABLISHED, but then
 	 * immediately tears it down. */
 
-	LASSERT (rc != 0);
+	LASSERT(rc != 0);
 	conn->ibc_comms_error = rc;
 	kiblnd_connreq_done(conn, 0);
 }
 
 static int
-kiblnd_active_connect (struct rdma_cm_id *cmid)
+kiblnd_active_connect(struct rdma_cm_id *cmid)
 {
 	kib_peer_t	      *peer = (kib_peer_t *)cmid->context;
 	kib_conn_t	      *conn;
@@ -2913,7 +2912,7 @@ kiblnd_cm_callback(struct rdma_cm_id *cmid, struct rdma_cm_event *event)
 			LBUG();
 
 		case IBLND_CONN_PASSIVE_WAIT:
-			CERROR ("%s: REJECTED %d\n",
+			CERROR("%s: REJECTED %d\n",
 				libcfs_nid2str(conn->ibc_peer->ibp_nid),
 				event->status);
 			kiblnd_connreq_done(conn, -ECONNRESET);
@@ -2987,17 +2986,17 @@ kiblnd_check_txs_locked(kib_conn_t *conn, struct list_head *txs)
 	kib_tx_t	  *tx;
 	struct list_head	*ttmp;
 
-	list_for_each (ttmp, txs) {
-		tx = list_entry (ttmp, kib_tx_t, tx_list);
+	list_for_each(ttmp, txs) {
+		tx = list_entry(ttmp, kib_tx_t, tx_list);
 
 		if (txs != &conn->ibc_active_txs) {
-			LASSERT (tx->tx_queued);
+			LASSERT(tx->tx_queued);
 		} else {
-			LASSERT (!tx->tx_queued);
-			LASSERT (tx->tx_waiting || tx->tx_sending != 0);
+			LASSERT(!tx->tx_queued);
+			LASSERT(tx->tx_waiting || tx->tx_sending != 0);
 		}
 
-		if (cfs_time_aftereq (jiffies, tx->tx_deadline)) {
+		if (cfs_time_aftereq(jiffies, tx->tx_deadline)) {
 			CERROR("Timed out tx: %s, %lu seconds\n",
 			       kiblnd_queue2str(conn, txs),
 			       cfs_duration_sec(jiffies - tx->tx_deadline));
@@ -3019,14 +3018,15 @@ kiblnd_conn_timed_out_locked(kib_conn_t *conn)
 }
 
 static void
-kiblnd_check_conns (int idx)
+kiblnd_check_conns(int idx)
 {
-	LIST_HEAD (closes);
-	LIST_HEAD (checksends);
+	LIST_HEAD(closes);
+	LIST_HEAD(checksends);
 	struct list_head    *peers = &kiblnd_data.kib_peers[idx];
 	struct list_head    *ptmp;
 	kib_peer_t    *peer;
 	kib_conn_t    *conn;
+	kib_conn_t *tmp;
 	struct list_head    *ctmp;
 	unsigned long  flags;
 
@@ -3035,16 +3035,16 @@ kiblnd_check_conns (int idx)
 	 * take a look... */
 	read_lock_irqsave(&kiblnd_data.kib_global_lock, flags);
 
-	list_for_each (ptmp, peers) {
-		peer = list_entry (ptmp, kib_peer_t, ibp_list);
+	list_for_each(ptmp, peers) {
+		peer = list_entry(ptmp, kib_peer_t, ibp_list);
 
-		list_for_each (ctmp, &peer->ibp_conns) {
+		list_for_each(ctmp, &peer->ibp_conns) {
 			int timedout;
 			int sendnoop;
 
 			conn = list_entry(ctmp, kib_conn_t, ibc_list);
 
-			LASSERT (conn->ibc_state == IBLND_CONN_ESTABLISHED);
+			LASSERT(conn->ibc_state == IBLND_CONN_ESTABLISHED);
 
 			spin_lock(&conn->ibc_lock);
 
@@ -3080,9 +3080,7 @@ kiblnd_check_conns (int idx)
 	/* Handle timeout by closing the whole
 	 * connection. We can only be sure RDMA activity
 	 * has ceased once the QP has been modified. */
-	while (!list_empty(&closes)) {
-		conn = list_entry(closes.next,
-				      kib_conn_t, ibc_connd_list);
+	list_for_each_entry_safe(conn, tmp, &closes, ibc_connd_list) {
 		list_del(&conn->ibc_connd_list);
 		kiblnd_close_conn(conn, -ETIMEDOUT);
 		kiblnd_conn_decref(conn);
@@ -3101,11 +3099,11 @@ kiblnd_check_conns (int idx)
 }
 
 static void
-kiblnd_disconnect_conn (kib_conn_t *conn)
+kiblnd_disconnect_conn(kib_conn_t *conn)
 {
-	LASSERT (!in_interrupt());
-	LASSERT (current == kiblnd_data.kib_connd);
-	LASSERT (conn->ibc_state == IBLND_CONN_CLOSING);
+	LASSERT(!in_interrupt());
+	LASSERT(current == kiblnd_data.kib_connd);
+	LASSERT(conn->ibc_state == IBLND_CONN_CLOSING);
 
 	rdma_disconnect(conn->ibc_cmid);
 	kiblnd_finalise_conn(conn);
@@ -3114,7 +3112,7 @@ kiblnd_disconnect_conn (kib_conn_t *conn)
 }
 
 int
-kiblnd_connd (void *arg)
+kiblnd_connd(void *arg)
 {
 	wait_queue_t     wait;
 	unsigned long      flags;
@@ -3125,7 +3123,7 @@ kiblnd_connd (void *arg)
 	int		peer_index = 0;
 	unsigned long      deadline = jiffies;
 
-	cfs_block_allsigs ();
+	cfs_block_allsigs();
 
 	init_waitqueue_entry(&wait, current);
 	kiblnd_data.kib_connd = current;
@@ -3136,7 +3134,7 @@ kiblnd_connd (void *arg)
 
 		dropped_lock = 0;
 
-		if (!list_empty (&kiblnd_data.kib_connd_zombies)) {
+		if (!list_empty(&kiblnd_data.kib_connd_zombies)) {
 			conn = list_entry(kiblnd_data. \
 					      kib_connd_zombies.next,
 					      kib_conn_t, ibc_list);
@@ -3239,7 +3237,7 @@ kiblnd_qp_event(struct ib_event *event, void *arg)
 }
 
 static void
-kiblnd_complete (struct ib_wc *wc)
+kiblnd_complete(struct ib_wc *wc)
 {
 	switch (kiblnd_wreqid2type(wc->wr_id)) {
 	default:
@@ -3440,9 +3438,9 @@ kiblnd_failover_thread(void *arg)
 	unsigned long      flags;
 	int		rc;
 
-	LASSERT (*kiblnd_tunables.kib_dev_failover != 0);
+	LASSERT(*kiblnd_tunables.kib_dev_failover != 0);
 
-	cfs_block_allsigs ();
+	cfs_block_allsigs();
 
 	init_waitqueue_entry(&wait, current);
 	write_lock_irqsave(glock, flags);
@@ -3469,7 +3467,7 @@ kiblnd_failover_thread(void *arg)
 
 			write_lock_irqsave(glock, flags);
 
-			LASSERT (dev->ibd_failover);
+			LASSERT(dev->ibd_failover);
 			dev->ibd_failover = 0;
 			if (rc >= 0) { /* Device is OK or failover succeed */
 				dev->ibd_next_failover = cfs_time_shift(3);
diff --git a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_modparams.c b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_modparams.c
index 8b4a8e9..eedf01a 100644
--- a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_modparams.c
+++ b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_modparams.c
@@ -44,7 +44,7 @@ static int service = 987;
 module_param(service, int, 0444);
 MODULE_PARM_DESC(service, "service number (within RDMA_PS_TCP)");
 
-static int cksum = 0;
+static int cksum;
 module_param(cksum, int, 0644);
 MODULE_PARM_DESC(cksum, "set non-zero to enable message (not RDMA) checksums");
 
@@ -72,11 +72,11 @@ static int peer_credits = 8;
 module_param(peer_credits, int, 0444);
 MODULE_PARM_DESC(peer_credits, "# concurrent sends to 1 peer");
 
-static int peer_credits_hiw = 0;
+static int peer_credits_hiw;
 module_param(peer_credits_hiw, int, 0444);
 MODULE_PARM_DESC(peer_credits_hiw, "when eagerly to return credits");
 
-static int peer_buffer_credits = 0;
+static int peer_buffer_credits;
 module_param(peer_buffer_credits, int, 0444);
 MODULE_PARM_DESC(peer_buffer_credits, "# per-peer router buffer credits");
 
@@ -100,15 +100,15 @@ static int keepalive = 100;
 module_param(keepalive, int, 0644);
 MODULE_PARM_DESC(keepalive, "Idle time in seconds before sending a keepalive");
 
-static int ib_mtu = 0;
+static int ib_mtu;
 module_param(ib_mtu, int, 0444);
 MODULE_PARM_DESC(ib_mtu, "IB MTU 256/512/1024/2048/4096");
 
-static int concurrent_sends = 0;
+static int concurrent_sends;
 module_param(concurrent_sends, int, 0444);
 MODULE_PARM_DESC(concurrent_sends, "send work-queue sizing");
 
-static int map_on_demand = 0;
+static int map_on_demand;
 module_param(map_on_demand, int, 0444);
 MODULE_PARM_DESC(map_on_demand, "map on demand");
 
@@ -136,12 +136,12 @@ MODULE_PARM_DESC(pmr_pool_size, "size of MR cache pmr pool on each CPT");
  * 1: enable failover if necessary
  * 2: force to failover (for debug)
  */
-static int dev_failover = 0;
+static int dev_failover;
 module_param(dev_failover, int, 0444);
 MODULE_PARM_DESC(dev_failover, "HCA failover for bonding (0 off, 1 on, other values reserved)");
 
 
-static int require_privileged_port = 0;
+static int require_privileged_port;
 module_param(require_privileged_port, int, 0644);
 MODULE_PARM_DESC(require_privileged_port, "require privileged port when accepting connection");
 
@@ -177,7 +177,7 @@ kib_tunables_t kiblnd_tunables = {
 };
 
 int
-kiblnd_tunables_init (void)
+kiblnd_tunables_init(void)
 {
 	if (kiblnd_translate_mtu(*kiblnd_tunables.kib_ib_mtu) < 0) {
 		CERROR("Invalid ib_mtu %d, expected 256/512/1024/2048/4096\n",
diff --git a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd.c b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd.c
index 5956dba..7586b7e 100644
--- a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd.c
+++ b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd.c
@@ -65,15 +65,15 @@ ksocknal_ip2iface(lnet_ni_t *ni, __u32 ip)
 }
 
 static ksock_route_t *
-ksocknal_create_route (__u32 ipaddr, int port)
+ksocknal_create_route(__u32 ipaddr, int port)
 {
 	ksock_route_t *route;
 
-	LIBCFS_ALLOC (route, sizeof (*route));
+	LIBCFS_ALLOC(route, sizeof(*route));
 	if (route == NULL)
 		return NULL;
 
-	atomic_set (&route->ksnr_refcount, 1);
+	atomic_set(&route->ksnr_refcount, 1);
 	route->ksnr_peer = NULL;
 	route->ksnr_retry_interval = 0;	 /* OK to connect at any time */
 	route->ksnr_ipaddr = ipaddr;
@@ -89,43 +89,43 @@ ksocknal_create_route (__u32 ipaddr, int port)
 }
 
 void
-ksocknal_destroy_route (ksock_route_t *route)
+ksocknal_destroy_route(ksock_route_t *route)
 {
-	LASSERT (atomic_read(&route->ksnr_refcount) == 0);
+	LASSERT(atomic_read(&route->ksnr_refcount) == 0);
 
 	if (route->ksnr_peer != NULL)
 		ksocknal_peer_decref(route->ksnr_peer);
 
-	LIBCFS_FREE (route, sizeof (*route));
+	LIBCFS_FREE(route, sizeof(*route));
 }
 
 static int
-ksocknal_create_peer (ksock_peer_t **peerp, lnet_ni_t *ni, lnet_process_id_t id)
+ksocknal_create_peer(ksock_peer_t **peerp, lnet_ni_t *ni, lnet_process_id_t id)
 {
 	ksock_net_t   *net = ni->ni_data;
 	ksock_peer_t  *peer;
 
-	LASSERT (id.nid != LNET_NID_ANY);
-	LASSERT (id.pid != LNET_PID_ANY);
-	LASSERT (!in_interrupt());
+	LASSERT(id.nid != LNET_NID_ANY);
+	LASSERT(id.pid != LNET_PID_ANY);
+	LASSERT(!in_interrupt());
 
-	LIBCFS_ALLOC (peer, sizeof (*peer));
+	LIBCFS_ALLOC(peer, sizeof(*peer));
 	if (peer == NULL)
 		return -ENOMEM;
 
 	peer->ksnp_ni = ni;
 	peer->ksnp_id = id;
-	atomic_set (&peer->ksnp_refcount, 1);   /* 1 ref for caller */
+	atomic_set(&peer->ksnp_refcount, 1);   /* 1 ref for caller */
 	peer->ksnp_closing = 0;
 	peer->ksnp_accepting = 0;
 	peer->ksnp_proto = NULL;
 	peer->ksnp_last_alive = 0;
 	peer->ksnp_zc_next_cookie = SOCKNAL_KEEPALIVE_PING + 1;
 
-	INIT_LIST_HEAD (&peer->ksnp_conns);
-	INIT_LIST_HEAD (&peer->ksnp_routes);
-	INIT_LIST_HEAD (&peer->ksnp_tx_queue);
-	INIT_LIST_HEAD (&peer->ksnp_zc_req_list);
+	INIT_LIST_HEAD(&peer->ksnp_conns);
+	INIT_LIST_HEAD(&peer->ksnp_routes);
+	INIT_LIST_HEAD(&peer->ksnp_tx_queue);
+	INIT_LIST_HEAD(&peer->ksnp_zc_req_list);
 	spin_lock_init(&peer->ksnp_lock);
 
 	spin_lock_bh(&net->ksnn_lock);
@@ -147,21 +147,21 @@ ksocknal_create_peer (ksock_peer_t **peerp, lnet_ni_t *ni, lnet_process_id_t id)
 }
 
 void
-ksocknal_destroy_peer (ksock_peer_t *peer)
+ksocknal_destroy_peer(ksock_peer_t *peer)
 {
 	ksock_net_t    *net = peer->ksnp_ni->ni_data;
 
-	CDEBUG (D_NET, "peer %s %p deleted\n",
+	CDEBUG(D_NET, "peer %s %p deleted\n",
 		libcfs_id2str(peer->ksnp_id), peer);
 
-	LASSERT (atomic_read (&peer->ksnp_refcount) == 0);
-	LASSERT (peer->ksnp_accepting == 0);
-	LASSERT (list_empty (&peer->ksnp_conns));
-	LASSERT (list_empty (&peer->ksnp_routes));
-	LASSERT (list_empty (&peer->ksnp_tx_queue));
-	LASSERT (list_empty (&peer->ksnp_zc_req_list));
+	LASSERT(atomic_read(&peer->ksnp_refcount) == 0);
+	LASSERT(peer->ksnp_accepting == 0);
+	LASSERT(list_empty(&peer->ksnp_conns));
+	LASSERT(list_empty(&peer->ksnp_routes));
+	LASSERT(list_empty(&peer->ksnp_tx_queue));
+	LASSERT(list_empty(&peer->ksnp_zc_req_list));
 
-	LIBCFS_FREE (peer, sizeof (*peer));
+	LIBCFS_FREE(peer, sizeof(*peer));
 
 	/* NB a peer's connections and routes keep a reference on their peer
 	 * until they are destroyed, so we can be assured that _all_ state to
@@ -173,17 +173,17 @@ ksocknal_destroy_peer (ksock_peer_t *peer)
 }
 
 ksock_peer_t *
-ksocknal_find_peer_locked (lnet_ni_t *ni, lnet_process_id_t id)
+ksocknal_find_peer_locked(lnet_ni_t *ni, lnet_process_id_t id)
 {
 	struct list_head       *peer_list = ksocknal_nid2peerlist(id.nid);
 	struct list_head       *tmp;
 	ksock_peer_t     *peer;
 
-	list_for_each (tmp, peer_list) {
+	list_for_each(tmp, peer_list) {
 
-		peer = list_entry (tmp, ksock_peer_t, ksnp_list);
+		peer = list_entry(tmp, ksock_peer_t, ksnp_list);
 
-		LASSERT (!peer->ksnp_closing);
+		LASSERT(!peer->ksnp_closing);
 
 		if (peer->ksnp_ni != ni)
 			continue;
@@ -201,7 +201,7 @@ ksocknal_find_peer_locked (lnet_ni_t *ni, lnet_process_id_t id)
 }
 
 ksock_peer_t *
-ksocknal_find_peer (lnet_ni_t *ni, lnet_process_id_t id)
+ksocknal_find_peer(lnet_ni_t *ni, lnet_process_id_t id)
 {
 	ksock_peer_t     *peer;
 
@@ -215,37 +215,37 @@ ksocknal_find_peer (lnet_ni_t *ni, lnet_process_id_t id)
 }
 
 static void
-ksocknal_unlink_peer_locked (ksock_peer_t *peer)
+ksocknal_unlink_peer_locked(ksock_peer_t *peer)
 {
 	int		i;
 	__u32	      ip;
 	ksock_interface_t *iface;
 
 	for (i = 0; i < peer->ksnp_n_passive_ips; i++) {
-		LASSERT (i < LNET_MAX_INTERFACES);
+		LASSERT(i < LNET_MAX_INTERFACES);
 		ip = peer->ksnp_passive_ips[i];
 
 		iface = ksocknal_ip2iface(peer->ksnp_ni, ip);
 		/* All IPs in peer->ksnp_passive_ips[] come from the
 		 * interface list, therefore the call must succeed. */
-		LASSERT (iface != NULL);
+		LASSERT(iface != NULL);
 
 		CDEBUG(D_NET, "peer=%p iface=%p ksni_nroutes=%d\n",
 		       peer, iface, iface->ksni_nroutes);
 		iface->ksni_npeers--;
 	}
 
-	LASSERT (list_empty(&peer->ksnp_conns));
-	LASSERT (list_empty(&peer->ksnp_routes));
-	LASSERT (!peer->ksnp_closing);
+	LASSERT(list_empty(&peer->ksnp_conns));
+	LASSERT(list_empty(&peer->ksnp_routes));
+	LASSERT(!peer->ksnp_closing);
 	peer->ksnp_closing = 1;
-	list_del (&peer->ksnp_list);
+	list_del(&peer->ksnp_list);
 	/* lose peerlist's ref */
 	ksocknal_peer_decref(peer);
 }
 
 static int
-ksocknal_get_peer_info (lnet_ni_t *ni, int index,
+ksocknal_get_peer_info(lnet_ni_t *ni, int index,
 			lnet_process_id_t *id, __u32 *myip, __u32 *peer_ip,
 			int *port, int *conn_count, int *share_count)
 {
@@ -261,8 +261,8 @@ ksocknal_get_peer_info (lnet_ni_t *ni, int index,
 
 	for (i = 0; i < ksocknal_data.ksnd_peer_hash_size; i++) {
 
-		list_for_each (ptmp, &ksocknal_data.ksnd_peers[i]) {
-			peer = list_entry (ptmp, ksock_peer_t, ksnp_list);
+		list_for_each(ptmp, &ksocknal_data.ksnd_peers[i]) {
+			peer = list_entry(ptmp, ksock_peer_t, ksnp_list);
 
 			if (peer->ksnp_ni != ni)
 				continue;
@@ -296,7 +296,7 @@ ksocknal_get_peer_info (lnet_ni_t *ni, int index,
 				goto out;
 			}
 
-			list_for_each (rtmp, &peer->ksnp_routes) {
+			list_for_each(rtmp, &peer->ksnp_routes) {
 				if (index-- > 0)
 					continue;
 
@@ -364,17 +364,17 @@ ksocknal_associate_route_conn_locked(ksock_route_t *route, ksock_conn_t *conn)
 }
 
 static void
-ksocknal_add_route_locked (ksock_peer_t *peer, ksock_route_t *route)
+ksocknal_add_route_locked(ksock_peer_t *peer, ksock_route_t *route)
 {
 	struct list_head	*tmp;
 	ksock_conn_t      *conn;
 	ksock_route_t     *route2;
 
-	LASSERT (!peer->ksnp_closing);
-	LASSERT (route->ksnr_peer == NULL);
-	LASSERT (!route->ksnr_scheduled);
-	LASSERT (!route->ksnr_connecting);
-	LASSERT (route->ksnr_connected == 0);
+	LASSERT(!peer->ksnp_closing);
+	LASSERT(route->ksnr_peer == NULL);
+	LASSERT(!route->ksnr_scheduled);
+	LASSERT(!route->ksnr_connecting);
+	LASSERT(route->ksnr_connected == 0);
 
 	/* LASSERT(unique) */
 	list_for_each(tmp, &peer->ksnp_routes) {
@@ -405,7 +405,7 @@ ksocknal_add_route_locked (ksock_peer_t *peer, ksock_route_t *route)
 }
 
 static void
-ksocknal_del_route_locked (ksock_route_t *route)
+ksocknal_del_route_locked(ksock_route_t *route)
 {
 	ksock_peer_t      *peer = route->ksnr_peer;
 	ksock_interface_t *iface;
@@ -413,16 +413,16 @@ ksocknal_del_route_locked (ksock_route_t *route)
 	struct list_head	*ctmp;
 	struct list_head	*cnxt;
 
-	LASSERT (!route->ksnr_deleted);
+	LASSERT(!route->ksnr_deleted);
 
 	/* Close associated conns */
-	list_for_each_safe (ctmp, cnxt, &peer->ksnp_conns) {
+	list_for_each_safe(ctmp, cnxt, &peer->ksnp_conns) {
 		conn = list_entry(ctmp, ksock_conn_t, ksnc_list);
 
 		if (conn->ksnc_route != route)
 			continue;
 
-		ksocknal_close_conn_locked (conn, 0);
+		ksocknal_close_conn_locked(conn, 0);
 	}
 
 	if (route->ksnr_myipaddr != 0) {
@@ -433,19 +433,19 @@ ksocknal_del_route_locked (ksock_route_t *route)
 	}
 
 	route->ksnr_deleted = 1;
-	list_del (&route->ksnr_list);
+	list_del(&route->ksnr_list);
 	ksocknal_route_decref(route);	     /* drop peer's ref */
 
-	if (list_empty (&peer->ksnp_routes) &&
-	    list_empty (&peer->ksnp_conns)) {
+	if (list_empty(&peer->ksnp_routes) &&
+	    list_empty(&peer->ksnp_conns)) {
 		/* I've just removed the last route to a peer with no active
 		 * connections */
-		ksocknal_unlink_peer_locked (peer);
+		ksocknal_unlink_peer_locked(peer);
 	}
 }
 
 int
-ksocknal_add_peer (lnet_ni_t *ni, lnet_process_id_t id, __u32 ipaddr, int port)
+ksocknal_add_peer(lnet_ni_t *ni, lnet_process_id_t id, __u32 ipaddr, int port)
 {
 	struct list_head	*tmp;
 	ksock_peer_t      *peer;
@@ -463,7 +463,7 @@ ksocknal_add_peer (lnet_ni_t *ni, lnet_process_id_t id, __u32 ipaddr, int port)
 	if (rc != 0)
 		return rc;
 
-	route = ksocknal_create_route (ipaddr, port);
+	route = ksocknal_create_route(ipaddr, port);
 	if (route == NULL) {
 		ksocknal_peer_decref(peer);
 		return -ENOMEM;
@@ -472,20 +472,20 @@ ksocknal_add_peer (lnet_ni_t *ni, lnet_process_id_t id, __u32 ipaddr, int port)
 	write_lock_bh(&ksocknal_data.ksnd_global_lock);
 
 	/* always called with a ref on ni, so shutdown can't have started */
-	LASSERT (((ksock_net_t *) ni->ni_data)->ksnn_shutdown == 0);
+	LASSERT(((ksock_net_t *) ni->ni_data)->ksnn_shutdown == 0);
 
-	peer2 = ksocknal_find_peer_locked (ni, id);
+	peer2 = ksocknal_find_peer_locked(ni, id);
 	if (peer2 != NULL) {
 		ksocknal_peer_decref(peer);
 		peer = peer2;
 	} else {
 		/* peer table takes my ref on peer */
-		list_add_tail (&peer->ksnp_list,
-				   ksocknal_nid2peerlist (id.nid));
+		list_add_tail(&peer->ksnp_list,
+				   ksocknal_nid2peerlist(id.nid));
 	}
 
 	route2 = NULL;
-	list_for_each (tmp, &peer->ksnp_routes) {
+	list_for_each(tmp, &peer->ksnp_routes) {
 		route2 = list_entry(tmp, ksock_route_t, ksnr_list);
 
 		if (route2->ksnr_ipaddr == ipaddr)
@@ -507,7 +507,7 @@ ksocknal_add_peer (lnet_ni_t *ni, lnet_process_id_t id, __u32 ipaddr, int port)
 }
 
 static void
-ksocknal_del_peer_locked (ksock_peer_t *peer, __u32 ip)
+ksocknal_del_peer_locked(ksock_peer_t *peer, __u32 ip)
 {
 	ksock_conn_t     *conn;
 	ksock_route_t    *route;
@@ -515,12 +515,12 @@ ksocknal_del_peer_locked (ksock_peer_t *peer, __u32 ip)
 	struct list_head       *nxt;
 	int	       nshared;
 
-	LASSERT (!peer->ksnp_closing);
+	LASSERT(!peer->ksnp_closing);
 
 	/* Extra ref prevents peer disappearing until I'm done with it */
 	ksocknal_peer_addref(peer);
 
-	list_for_each_safe (tmp, nxt, &peer->ksnp_routes) {
+	list_for_each_safe(tmp, nxt, &peer->ksnp_routes) {
 		route = list_entry(tmp, ksock_route_t, ksnr_list);
 
 		/* no match */
@@ -529,11 +529,11 @@ ksocknal_del_peer_locked (ksock_peer_t *peer, __u32 ip)
 
 		route->ksnr_share_count = 0;
 		/* This deletes associated conns too */
-		ksocknal_del_route_locked (route);
+		ksocknal_del_route_locked(route);
 	}
 
 	nshared = 0;
-	list_for_each_safe (tmp, nxt, &peer->ksnp_routes) {
+	list_for_each_safe(tmp, nxt, &peer->ksnp_routes) {
 		route = list_entry(tmp, ksock_route_t, ksnr_list);
 		nshared += route->ksnr_share_count;
 	}
@@ -542,15 +542,15 @@ ksocknal_del_peer_locked (ksock_peer_t *peer, __u32 ip)
 		/* remove everything else if there are no explicit entries
 		 * left */
 
-		list_for_each_safe (tmp, nxt, &peer->ksnp_routes) {
+		list_for_each_safe(tmp, nxt, &peer->ksnp_routes) {
 			route = list_entry(tmp, ksock_route_t, ksnr_list);
 
 			/* we should only be removing auto-entries */
 			LASSERT(route->ksnr_share_count == 0);
-			ksocknal_del_route_locked (route);
+			ksocknal_del_route_locked(route);
 		}
 
-		list_for_each_safe (tmp, nxt, &peer->ksnp_conns) {
+		list_for_each_safe(tmp, nxt, &peer->ksnp_conns) {
 			conn = list_entry(tmp, ksock_conn_t, ksnc_list);
 
 			ksocknal_close_conn_locked(conn, 0);
@@ -562,9 +562,9 @@ ksocknal_del_peer_locked (ksock_peer_t *peer, __u32 ip)
 }
 
 static int
-ksocknal_del_peer (lnet_ni_t *ni, lnet_process_id_t id, __u32 ip)
+ksocknal_del_peer(lnet_ni_t *ni, lnet_process_id_t id, __u32 ip)
 {
-	LIST_HEAD     (zombies);
+	LIST_HEAD(zombies);
 	struct list_head	*ptmp;
 	struct list_head	*pnxt;
 	ksock_peer_t      *peer;
@@ -583,9 +583,9 @@ ksocknal_del_peer (lnet_ni_t *ni, lnet_process_id_t id, __u32 ip)
 	}
 
 	for (i = lo; i <= hi; i++) {
-		list_for_each_safe (ptmp, pnxt,
+		list_for_each_safe(ptmp, pnxt,
 					&ksocknal_data.ksnd_peers[i]) {
-			peer = list_entry (ptmp, ksock_peer_t, ksnp_list);
+			peer = list_entry(ptmp, ksock_peer_t, ksnp_list);
 
 			if (peer->ksnp_ni != ni)
 				continue;
@@ -596,12 +596,12 @@ ksocknal_del_peer (lnet_ni_t *ni, lnet_process_id_t id, __u32 ip)
 
 			ksocknal_peer_addref(peer);     /* a ref for me... */
 
-			ksocknal_del_peer_locked (peer, ip);
+			ksocknal_del_peer_locked(peer, ip);
 
 			if (peer->ksnp_closing &&
 			    !list_empty(&peer->ksnp_tx_queue)) {
-				LASSERT (list_empty(&peer->ksnp_conns));
-				LASSERT (list_empty(&peer->ksnp_routes));
+				LASSERT(list_empty(&peer->ksnp_conns));
+				LASSERT(list_empty(&peer->ksnp_routes));
 
 				list_splice_init(&peer->ksnp_tx_queue,
 						     &zombies);
@@ -621,7 +621,7 @@ ksocknal_del_peer (lnet_ni_t *ni, lnet_process_id_t id, __u32 ip)
 }
 
 static ksock_conn_t *
-ksocknal_get_conn_by_idx (lnet_ni_t *ni, int index)
+ksocknal_get_conn_by_idx(lnet_ni_t *ni, int index)
 {
 	ksock_peer_t      *peer;
 	struct list_head	*ptmp;
@@ -632,19 +632,19 @@ ksocknal_get_conn_by_idx (lnet_ni_t *ni, int index)
 	read_lock(&ksocknal_data.ksnd_global_lock);
 
 	for (i = 0; i < ksocknal_data.ksnd_peer_hash_size; i++) {
-		list_for_each (ptmp, &ksocknal_data.ksnd_peers[i]) {
-			peer = list_entry (ptmp, ksock_peer_t, ksnp_list);
+		list_for_each(ptmp, &ksocknal_data.ksnd_peers[i]) {
+			peer = list_entry(ptmp, ksock_peer_t, ksnp_list);
 
-			LASSERT (!peer->ksnp_closing);
+			LASSERT(!peer->ksnp_closing);
 
 			if (peer->ksnp_ni != ni)
 				continue;
 
-			list_for_each (ctmp, &peer->ksnp_conns) {
+			list_for_each(ctmp, &peer->ksnp_conns) {
 				if (index-- > 0)
 					continue;
 
-				conn = list_entry (ctmp, ksock_conn_t,
+				conn = list_entry(ctmp, ksock_conn_t,
 						       ksnc_list);
 				ksocknal_conn_addref(conn);
 				read_unlock(&ksocknal_data.ksnd_global_lock);
@@ -681,7 +681,7 @@ ksocknal_choose_scheduler_locked(unsigned int cpt)
 }
 
 static int
-ksocknal_local_ipvec (lnet_ni_t *ni, __u32 *ipaddrs)
+ksocknal_local_ipvec(lnet_ni_t *ni, __u32 *ipaddrs)
 {
 	ksock_net_t       *net = ni->ni_data;
 	int		i;
@@ -690,7 +690,7 @@ ksocknal_local_ipvec (lnet_ni_t *ni, __u32 *ipaddrs)
 	read_lock(&ksocknal_data.ksnd_global_lock);
 
 	nip = net->ksnn_ninterfaces;
-	LASSERT (nip <= LNET_MAX_INTERFACES);
+	LASSERT(nip <= LNET_MAX_INTERFACES);
 
 	/* Only offer interfaces for additional connections if I have
 	 * more than one. */
@@ -701,7 +701,7 @@ ksocknal_local_ipvec (lnet_ni_t *ni, __u32 *ipaddrs)
 
 	for (i = 0; i < nip; i++) {
 		ipaddrs[i] = net->ksnn_interfaces[i].ksni_ipaddr;
-		LASSERT (ipaddrs[i] != 0);
+		LASSERT(ipaddrs[i] != 0);
 	}
 
 	read_unlock(&ksocknal_data.ksnd_global_lock);
@@ -709,7 +709,7 @@ ksocknal_local_ipvec (lnet_ni_t *ni, __u32 *ipaddrs)
 }
 
 static int
-ksocknal_match_peerip (ksock_interface_t *iface, __u32 *ips, int nips)
+ksocknal_match_peerip(ksock_interface_t *iface, __u32 *ips, int nips)
 {
 	int   best_netmatch = 0;
 	int   best_xor      = 0;
@@ -722,7 +722,7 @@ ksocknal_match_peerip (ksock_interface_t *iface, __u32 *ips, int nips)
 		if (ips[i] == 0)
 			continue;
 
-		this_xor = (ips[i] ^ iface->ksni_ipaddr);
+		this_xor = ips[i] ^ iface->ksni_ipaddr;
 		this_netmatch = ((this_xor & iface->ksni_netmask) == 0) ? 1 : 0;
 
 		if (!(best < 0 ||
@@ -736,7 +736,7 @@ ksocknal_match_peerip (ksock_interface_t *iface, __u32 *ips, int nips)
 		best_xor = this_xor;
 	}
 
-	LASSERT (best >= 0);
+	LASSERT(best >= 0);
 	return best;
 }
 
@@ -767,8 +767,8 @@ ksocknal_select_ips(ksock_peer_t *peer, __u32 *peerips, int n_peerips)
 
 	write_lock_bh(global_lock);
 
-	LASSERT (n_peerips <= LNET_MAX_INTERFACES);
-	LASSERT (net->ksnn_ninterfaces <= LNET_MAX_INTERFACES);
+	LASSERT(n_peerips <= LNET_MAX_INTERFACES);
+	LASSERT(net->ksnn_ninterfaces <= LNET_MAX_INTERFACES);
 
 	/* Only match interfaces for additional connections
 	 * if I have > 1 interface */
@@ -791,7 +791,7 @@ ksocknal_select_ips(ksock_peer_t *peer, __u32 *peerips, int n_peerips)
 
 		} else {
 			/* choose a new interface */
-			LASSERT (i == peer->ksnp_n_passive_ips);
+			LASSERT(i == peer->ksnp_n_passive_ips);
 
 			best_iface = NULL;
 			best_netmatch = 0;
@@ -809,7 +809,7 @@ ksocknal_select_ips(ksock_peer_t *peer, __u32 *peerips, int n_peerips)
 					continue;
 
 				k = ksocknal_match_peerip(iface, peerips, n_peerips);
-				xor = (ip ^ peerips[k]);
+				xor = ip ^ peerips[k];
 				this_netmatch = ((xor & iface->ksni_netmask) == 0) ? 1 : 0;
 
 				if (!(best_iface == NULL ||
@@ -874,7 +874,7 @@ ksocknal_create_routes(ksock_peer_t *peer, int port,
 		return;
 	}
 
-	LASSERT (npeer_ipaddrs <= LNET_MAX_INTERFACES);
+	LASSERT(npeer_ipaddrs <= LNET_MAX_INTERFACES);
 
 	for (i = 0; i < npeer_ipaddrs; i++) {
 		if (newroute != NULL) {
@@ -911,7 +911,7 @@ ksocknal_create_routes(ksock_peer_t *peer, int port,
 		best_nroutes = 0;
 		best_netmatch = 0;
 
-		LASSERT (net->ksnn_ninterfaces <= LNET_MAX_INTERFACES);
+		LASSERT(net->ksnn_ninterfaces <= LNET_MAX_INTERFACES);
 
 		/* Select interface to connect from */
 		for (j = 0; j < net->ksnn_ninterfaces; j++) {
@@ -961,7 +961,7 @@ ksocknal_create_routes(ksock_peer_t *peer, int port,
 }
 
 int
-ksocknal_accept (lnet_ni_t *ni, struct socket *sock)
+ksocknal_accept(lnet_ni_t *ni, struct socket *sock)
 {
 	ksock_connreq_t    *cr;
 	int		 rc;
@@ -969,7 +969,7 @@ ksocknal_accept (lnet_ni_t *ni, struct socket *sock)
 	int		 peer_port;
 
 	rc = libcfs_sock_getaddr(sock, 1, &peer_ip, &peer_port);
-	LASSERT (rc == 0);		      /* we succeeded before */
+	LASSERT(rc == 0);		      /* we succeeded before */
 
 	LIBCFS_ALLOC(cr, sizeof(*cr));
 	if (cr == NULL) {
@@ -992,11 +992,11 @@ ksocknal_accept (lnet_ni_t *ni, struct socket *sock)
 }
 
 static int
-ksocknal_connecting (ksock_peer_t *peer, __u32 ipaddr)
+ksocknal_connecting(ksock_peer_t *peer, __u32 ipaddr)
 {
 	ksock_route_t   *route;
 
-	list_for_each_entry (route, &peer->ksnp_routes, ksnr_list) {
+	list_for_each_entry(route, &peer->ksnp_routes, ksnr_list) {
 
 		if (route->ksnr_ipaddr == ipaddr)
 			return route->ksnr_connecting;
@@ -1005,11 +1005,11 @@ ksocknal_connecting (ksock_peer_t *peer, __u32 ipaddr)
 }
 
 int
-ksocknal_create_conn (lnet_ni_t *ni, ksock_route_t *route,
+ksocknal_create_conn(lnet_ni_t *ni, ksock_route_t *route,
 		      struct socket *sock, int type)
 {
 	rwlock_t		*global_lock = &ksocknal_data.ksnd_global_lock;
-	LIST_HEAD     (zombies);
+	LIST_HEAD(zombies);
 	lnet_process_id_t  peerid;
 	struct list_head	*tmp;
 	__u64	      incarnation;
@@ -1028,7 +1028,7 @@ ksocknal_create_conn (lnet_ni_t *ni, ksock_route_t *route,
 
 	active = (route != NULL);
 
-	LASSERT (active == (type != SOCKLND_CONN_NONE));
+	LASSERT(active == (type != SOCKLND_CONN_NONE));
 
 	LIBCFS_ALLOC(conn, sizeof(*conn));
 	if (conn == NULL) {
@@ -1041,19 +1041,19 @@ ksocknal_create_conn (lnet_ni_t *ni, ksock_route_t *route,
 	conn->ksnc_sock = sock;
 	/* 2 ref, 1 for conn, another extra ref prevents socket
 	 * being closed before establishment of connection */
-	atomic_set (&conn->ksnc_sock_refcount, 2);
+	atomic_set(&conn->ksnc_sock_refcount, 2);
 	conn->ksnc_type = type;
 	ksocknal_lib_save_callback(sock, conn);
-	atomic_set (&conn->ksnc_conn_refcount, 1); /* 1 ref for me */
+	atomic_set(&conn->ksnc_conn_refcount, 1); /* 1 ref for me */
 
 	conn->ksnc_rx_ready = 0;
 	conn->ksnc_rx_scheduled = 0;
 
-	INIT_LIST_HEAD (&conn->ksnc_tx_queue);
+	INIT_LIST_HEAD(&conn->ksnc_tx_queue);
 	conn->ksnc_tx_ready = 0;
 	conn->ksnc_tx_scheduled = 0;
 	conn->ksnc_tx_carrier = NULL;
-	atomic_set (&conn->ksnc_tx_nob, 0);
+	atomic_set(&conn->ksnc_tx_nob, 0);
 
 	LIBCFS_ALLOC(hello, offsetof(ksock_hello_msg_t,
 				     kshm_ips[LNET_MAX_INTERFACES]));
@@ -1063,7 +1063,7 @@ ksocknal_create_conn (lnet_ni_t *ni, ksock_route_t *route,
 	}
 
 	/* stash conn's local and remote addrs */
-	rc = ksocknal_lib_get_conn_addrs (conn);
+	rc = ksocknal_lib_get_conn_addrs(conn);
 	if (rc != 0)
 		goto failed_1;
 
@@ -1094,7 +1094,7 @@ ksocknal_create_conn (lnet_ni_t *ni, ksock_route_t *route,
 #endif
 		}
 
-		rc = ksocknal_send_hello (ni, conn, peerid.nid, hello);
+		rc = ksocknal_send_hello(ni, conn, peerid.nid, hello);
 		if (rc != 0)
 			goto failed_1;
 	} else {
@@ -1105,13 +1105,13 @@ ksocknal_create_conn (lnet_ni_t *ni, ksock_route_t *route,
 		conn->ksnc_proto = NULL;
 	}
 
-	rc = ksocknal_recv_hello (ni, conn, hello, &peerid, &incarnation);
+	rc = ksocknal_recv_hello(ni, conn, hello, &peerid, &incarnation);
 	if (rc < 0)
 		goto failed_1;
 
-	LASSERT (rc == 0 || active);
-	LASSERT (conn->ksnc_proto != NULL);
-	LASSERT (peerid.nid != LNET_NID_ANY);
+	LASSERT(rc == 0 || active);
+	LASSERT(conn->ksnc_proto != NULL);
+	LASSERT(peerid.nid != LNET_NID_ANY);
 
 	cpt = lnet_cpt_of_nid(peerid.nid);
 
@@ -1126,7 +1126,7 @@ ksocknal_create_conn (lnet_ni_t *ni, ksock_route_t *route,
 		write_lock_bh(global_lock);
 
 		/* called with a ref on ni, so shutdown can't have started */
-		LASSERT (((ksock_net_t *) ni->ni_data)->ksnn_shutdown == 0);
+		LASSERT(((ksock_net_t *) ni->ni_data)->ksnn_shutdown == 0);
 
 		peer2 = ksocknal_find_peer_locked(ni, peerid);
 		if (peer2 == NULL) {
@@ -1166,7 +1166,7 @@ ksocknal_create_conn (lnet_ni_t *ni, ksock_route_t *route,
 		 * NB recv_hello may have returned EPROTO to signal my peer
 		 * wants a different protocol than the one I asked for.
 		 */
-		LASSERT (list_empty(&peer->ksnp_conns));
+		LASSERT(list_empty(&peer->ksnp_conns));
 
 		peer->ksnp_proto = conn->ksnc_proto;
 		peer->ksnp_incarnation = incarnation;
@@ -1211,7 +1211,7 @@ ksocknal_create_conn (lnet_ni_t *ni, ksock_route_t *route,
 
 			/* Reply on a passive connection attempt so the peer
 			 * realises we're connected. */
-			LASSERT (rc == 0);
+			LASSERT(rc == 0);
 			if (!active)
 				rc = EALREADY;
 
@@ -1235,7 +1235,7 @@ ksocknal_create_conn (lnet_ni_t *ni, ksock_route_t *route,
 	 * create an association.  This allows incoming connections created
 	 * by routes in my peer to match my own route entries so I don't
 	 * continually create duplicate routes. */
-	list_for_each (tmp, &peer->ksnp_routes) {
+	list_for_each(tmp, &peer->ksnp_routes) {
 		route = list_entry(tmp, ksock_route_t, ksnr_list);
 
 		if (route->ksnr_ipaddr != conn->ksnc_ipaddr)
@@ -1260,7 +1260,7 @@ ksocknal_create_conn (lnet_ni_t *ni, ksock_route_t *route,
 	conn->ksnc_tx_deadline = cfs_time_shift(*ksocknal_tunables.ksnd_timeout);
 	mb();   /* order with adding to peer's conn list */
 
-	list_add (&conn->ksnc_list, &peer->ksnp_conns);
+	list_add(&conn->ksnc_list, &peer->ksnp_conns);
 	ksocknal_conn_addref(conn);
 
 	ksocknal_new_packet(conn, 0);
@@ -1272,8 +1272,8 @@ ksocknal_create_conn (lnet_ni_t *ni, ksock_route_t *route,
 		if (conn->ksnc_proto->pro_match_tx(conn, tx, tx->tx_nonblk) == SOCKNAL_MATCH_NO)
 				continue;
 
-		list_del (&tx->tx_list);
-		ksocknal_queue_tx_locked (tx, conn);
+		list_del(&tx->tx_list);
+		ksocknal_queue_tx_locked(tx, conn);
 	}
 
 	write_unlock_bh(global_lock);
@@ -1343,8 +1343,8 @@ ksocknal_create_conn (lnet_ni_t *ni, ksock_route_t *route,
 
  failed_2:
 	if (!peer->ksnp_closing &&
-	    list_empty (&peer->ksnp_conns) &&
-	    list_empty (&peer->ksnp_routes)) {
+	    list_empty(&peer->ksnp_conns) &&
+	    list_empty(&peer->ksnp_routes)) {
 		list_add(&zombies, &peer->ksnp_tx_queue);
 		list_del_init(&peer->ksnp_tx_queue);
 		ksocknal_unlink_peer_locked(peer);
@@ -1383,7 +1383,7 @@ ksocknal_create_conn (lnet_ni_t *ni, ksock_route_t *route,
 		LIBCFS_FREE(hello, offsetof(ksock_hello_msg_t,
 					    kshm_ips[LNET_MAX_INTERFACES]));
 
-	LIBCFS_FREE (conn, sizeof(*conn));
+	LIBCFS_FREE(conn, sizeof(*conn));
 
  failed_0:
 	libcfs_sock_release(sock);
@@ -1391,7 +1391,7 @@ ksocknal_create_conn (lnet_ni_t *ni, ksock_route_t *route,
 }
 
 void
-ksocknal_close_conn_locked (ksock_conn_t *conn, int error)
+ksocknal_close_conn_locked(ksock_conn_t *conn, int error)
 {
 	/* This just does the immmediate housekeeping, and queues the
 	 * connection for the reaper to terminate.
@@ -1401,18 +1401,18 @@ ksocknal_close_conn_locked (ksock_conn_t *conn, int error)
 	ksock_conn_t      *conn2;
 	struct list_head	*tmp;
 
-	LASSERT (peer->ksnp_error == 0);
-	LASSERT (!conn->ksnc_closing);
+	LASSERT(peer->ksnp_error == 0);
+	LASSERT(!conn->ksnc_closing);
 	conn->ksnc_closing = 1;
 
 	/* ksnd_deathrow_conns takes over peer's ref */
-	list_del (&conn->ksnc_list);
+	list_del(&conn->ksnc_list);
 
 	route = conn->ksnc_route;
 	if (route != NULL) {
 		/* dissociate conn from route... */
-		LASSERT (!route->ksnr_deleted);
-		LASSERT ((route->ksnr_connected & (1 << conn->ksnc_type)) != 0);
+		LASSERT(!route->ksnr_deleted);
+		LASSERT((route->ksnr_connected & (1 << conn->ksnc_type)) != 0);
 
 		conn2 = NULL;
 		list_for_each(tmp, &peer->ksnp_conns) {
@@ -1431,19 +1431,19 @@ ksocknal_close_conn_locked (ksock_conn_t *conn, int error)
 
 #if 0	   /* irrelevant with only eager routes */
 		/* make route least favourite */
-		list_del (&route->ksnr_list);
-		list_add_tail (&route->ksnr_list, &peer->ksnp_routes);
+		list_del(&route->ksnr_list);
+		list_add_tail(&route->ksnr_list, &peer->ksnp_routes);
 #endif
 		ksocknal_route_decref(route);     /* drop conn's ref on route */
 	}
 
-	if (list_empty (&peer->ksnp_conns)) {
+	if (list_empty(&peer->ksnp_conns)) {
 		/* No more connections to this peer */
 
 		if (!list_empty(&peer->ksnp_tx_queue)) {
 			ksock_tx_t *tx;
 
-			LASSERT (conn->ksnc_proto == &ksocknal_protocol_v3x);
+			LASSERT(conn->ksnc_proto == &ksocknal_protocol_v3x);
 
 			/* throw them to the last connection...,
 			 * these TXs will be send to /dev/null by scheduler */
@@ -1460,10 +1460,10 @@ ksocknal_close_conn_locked (ksock_conn_t *conn, int error)
 		peer->ksnp_proto = NULL;	/* renegotiate protocol version */
 		peer->ksnp_error = error;       /* stash last conn close reason */
 
-		if (list_empty (&peer->ksnp_routes)) {
+		if (list_empty(&peer->ksnp_routes)) {
 			/* I've just closed last conn belonging to a
 			 * peer with no routes to it */
-			ksocknal_unlink_peer_locked (peer);
+			ksocknal_unlink_peer_locked(peer);
 		}
 	}
 
@@ -1477,7 +1477,7 @@ ksocknal_close_conn_locked (ksock_conn_t *conn, int error)
 }
 
 void
-ksocknal_peer_failed (ksock_peer_t *peer)
+ksocknal_peer_failed(ksock_peer_t *peer)
 {
 	int	notify = 0;
 	unsigned long last_alive = 0;
@@ -1499,7 +1499,7 @@ ksocknal_peer_failed (ksock_peer_t *peer)
 	read_unlock(&ksocknal_data.ksnd_global_lock);
 
 	if (notify)
-		lnet_notify (peer->ksnp_ni, peer->ksnp_id.nid, 0,
+		lnet_notify(peer->ksnp_ni, peer->ksnp_id.nid, 0,
 			     last_alive);
 }
 
@@ -1509,11 +1509,11 @@ ksocknal_finalize_zcreq(ksock_conn_t *conn)
 	ksock_peer_t     *peer = conn->ksnc_peer;
 	ksock_tx_t       *tx;
 	ksock_tx_t       *tmp;
-	LIST_HEAD    (zlist);
+	LIST_HEAD(zlist);
 
 	/* NB safe to finalize TXs because closing of socket will
 	 * abort all buffered data */
-	LASSERT (conn->ksnc_sock == NULL);
+	LASSERT(conn->ksnc_sock == NULL);
 
 	spin_lock(&peer->ksnp_lock);
 
@@ -1521,7 +1521,7 @@ ksocknal_finalize_zcreq(ksock_conn_t *conn)
 		if (tx->tx_conn != conn)
 			continue;
 
-		LASSERT (tx->tx_msg.ksm_zc_cookies[0] != 0);
+		LASSERT(tx->tx_msg.ksm_zc_cookies[0] != 0);
 
 		tx->tx_msg.ksm_zc_cookies[0] = 0;
 		tx->tx_zc_aborted = 1; /* mark it as not-acked */
@@ -1540,7 +1540,7 @@ ksocknal_finalize_zcreq(ksock_conn_t *conn)
 }
 
 void
-ksocknal_terminate_conn (ksock_conn_t *conn)
+ksocknal_terminate_conn(ksock_conn_t *conn)
 {
 	/* This gets called by the reaper (guaranteed thread context) to
 	 * disengage the socket from its callbacks and close it.
@@ -1560,13 +1560,13 @@ ksocknal_terminate_conn (ksock_conn_t *conn)
 
 	if (!conn->ksnc_tx_scheduled &&
 	    !list_empty(&conn->ksnc_tx_queue)) {
-		list_add_tail (&conn->ksnc_tx_list,
+		list_add_tail(&conn->ksnc_tx_list,
 			       &sched->kss_tx_conns);
 		conn->ksnc_tx_scheduled = 1;
 		/* extra ref for scheduler */
 		ksocknal_conn_addref(conn);
 
-		wake_up (&sched->kss_waitq);
+		wake_up(&sched->kss_waitq);
 	}
 
 	spin_unlock_bh(&sched->kss_lock);
@@ -1582,7 +1582,7 @@ ksocknal_terminate_conn (ksock_conn_t *conn)
 
 	if (peer->ksnp_error != 0) {
 		/* peer's last conn closed in error */
-		LASSERT (list_empty (&peer->ksnp_conns));
+		LASSERT(list_empty(&peer->ksnp_conns));
 		failed = 1;
 		peer->ksnp_error = 0;     /* avoid multiple notifications */
 	}
@@ -1601,7 +1601,7 @@ ksocknal_terminate_conn (ksock_conn_t *conn)
 }
 
 void
-ksocknal_queue_zombie_conn (ksock_conn_t *conn)
+ksocknal_queue_zombie_conn(ksock_conn_t *conn)
 {
 	/* Queue the conn for the reaper to destroy */
 
@@ -1615,20 +1615,20 @@ ksocknal_queue_zombie_conn (ksock_conn_t *conn)
 }
 
 void
-ksocknal_destroy_conn (ksock_conn_t *conn)
+ksocknal_destroy_conn(ksock_conn_t *conn)
 {
 	unsigned long      last_rcv;
 
 	/* Final coup-de-grace of the reaper */
-	CDEBUG (D_NET, "connection %p\n", conn);
+	CDEBUG(D_NET, "connection %p\n", conn);
 
-	LASSERT (atomic_read (&conn->ksnc_conn_refcount) == 0);
-	LASSERT (atomic_read (&conn->ksnc_sock_refcount) == 0);
-	LASSERT (conn->ksnc_sock == NULL);
-	LASSERT (conn->ksnc_route == NULL);
-	LASSERT (!conn->ksnc_tx_scheduled);
-	LASSERT (!conn->ksnc_rx_scheduled);
-	LASSERT (list_empty(&conn->ksnc_tx_queue));
+	LASSERT(atomic_read(&conn->ksnc_conn_refcount) == 0);
+	LASSERT(atomic_read(&conn->ksnc_sock_refcount) == 0);
+	LASSERT(conn->ksnc_sock == NULL);
+	LASSERT(conn->ksnc_route == NULL);
+	LASSERT(!conn->ksnc_tx_scheduled);
+	LASSERT(!conn->ksnc_rx_scheduled);
+	LASSERT(list_empty(&conn->ksnc_tx_queue));
 
 	/* complete current receive if any */
 	switch (conn->ksnc_rx_state) {
@@ -1641,7 +1641,7 @@ ksocknal_destroy_conn (ksock_conn_t *conn)
 		       conn->ksnc_rx_nob_wanted, conn->ksnc_rx_nob_left,
 		       cfs_duration_sec(cfs_time_sub(cfs_time_current(),
 						     last_rcv)));
-		lnet_finalize (conn->ksnc_peer->ksnp_ni,
+		lnet_finalize(conn->ksnc_peer->ksnp_ni,
 			       conn->ksnc_cookie, -EIO);
 		break;
 	case SOCKNAL_RX_LNET_HEADER:
@@ -1665,30 +1665,30 @@ ksocknal_destroy_conn (ksock_conn_t *conn)
 			       &conn->ksnc_ipaddr, conn->ksnc_port);
 	       break;
 	default:
-		LBUG ();
+		LBUG();
 		break;
 	}
 
 	ksocknal_peer_decref(conn->ksnc_peer);
 
-	LIBCFS_FREE (conn, sizeof (*conn));
+	LIBCFS_FREE(conn, sizeof(*conn));
 }
 
 int
-ksocknal_close_peer_conns_locked (ksock_peer_t *peer, __u32 ipaddr, int why)
+ksocknal_close_peer_conns_locked(ksock_peer_t *peer, __u32 ipaddr, int why)
 {
 	ksock_conn_t       *conn;
 	struct list_head	 *ctmp;
 	struct list_head	 *cnxt;
 	int		 count = 0;
 
-	list_for_each_safe (ctmp, cnxt, &peer->ksnp_conns) {
-		conn = list_entry (ctmp, ksock_conn_t, ksnc_list);
+	list_for_each_safe(ctmp, cnxt, &peer->ksnp_conns) {
+		conn = list_entry(ctmp, ksock_conn_t, ksnc_list);
 
 		if (ipaddr == 0 ||
 		    conn->ksnc_ipaddr == ipaddr) {
 			count++;
-			ksocknal_close_conn_locked (conn, why);
+			ksocknal_close_conn_locked(conn, why);
 		}
 	}
 
@@ -1696,7 +1696,7 @@ ksocknal_close_peer_conns_locked (ksock_peer_t *peer, __u32 ipaddr, int why)
 }
 
 int
-ksocknal_close_conn_and_siblings (ksock_conn_t *conn, int why)
+ksocknal_close_conn_and_siblings(ksock_conn_t *conn, int why)
 {
 	ksock_peer_t     *peer = conn->ksnc_peer;
 	__u32	     ipaddr = conn->ksnc_ipaddr;
@@ -1704,7 +1704,7 @@ ksocknal_close_conn_and_siblings (ksock_conn_t *conn, int why)
 
 	write_lock_bh(&ksocknal_data.ksnd_global_lock);
 
-	count = ksocknal_close_peer_conns_locked (peer, ipaddr, why);
+	count = ksocknal_close_peer_conns_locked(peer, ipaddr, why);
 
 	write_unlock_bh(&ksocknal_data.ksnd_global_lock);
 
@@ -1712,7 +1712,7 @@ ksocknal_close_conn_and_siblings (ksock_conn_t *conn, int why)
 }
 
 int
-ksocknal_close_matching_conns (lnet_process_id_t id, __u32 ipaddr)
+ksocknal_close_matching_conns(lnet_process_id_t id, __u32 ipaddr)
 {
 	ksock_peer_t       *peer;
 	struct list_head	 *ptmp;
@@ -1732,16 +1732,16 @@ ksocknal_close_matching_conns (lnet_process_id_t id, __u32 ipaddr)
 	}
 
 	for (i = lo; i <= hi; i++) {
-		list_for_each_safe (ptmp, pnxt,
+		list_for_each_safe(ptmp, pnxt,
 					&ksocknal_data.ksnd_peers[i]) {
 
-			peer = list_entry (ptmp, ksock_peer_t, ksnp_list);
+			peer = list_entry(ptmp, ksock_peer_t, ksnp_list);
 
 			if (!((id.nid == LNET_NID_ANY || id.nid == peer->ksnp_id.nid) &&
 			      (id.pid == LNET_PID_ANY || id.pid == peer->ksnp_id.pid)))
 				continue;
 
-			count += ksocknal_close_peer_conns_locked (peer, ipaddr, 0);
+			count += ksocknal_close_peer_conns_locked(peer, ipaddr, 0);
 		}
 	}
 
@@ -1758,7 +1758,7 @@ ksocknal_close_matching_conns (lnet_process_id_t id, __u32 ipaddr)
 }
 
 void
-ksocknal_notify (lnet_ni_t *ni, lnet_nid_t gw_nid, int alive)
+ksocknal_notify(lnet_ni_t *ni, lnet_nid_t gw_nid, int alive)
 {
 	/* The router is telling me she's been notified of a change in
 	 * gateway state.... */
@@ -1767,12 +1767,12 @@ ksocknal_notify (lnet_ni_t *ni, lnet_nid_t gw_nid, int alive)
 	id.nid = gw_nid;
 	id.pid = LNET_PID_ANY;
 
-	CDEBUG (D_NET, "gw %s %s\n", libcfs_nid2str(gw_nid),
+	CDEBUG(D_NET, "gw %s %s\n", libcfs_nid2str(gw_nid),
 		alive ? "up" : "down");
 
 	if (!alive) {
 		/* If the gateway crashed, close all open connections... */
-		ksocknal_close_matching_conns (id, 0);
+		ksocknal_close_matching_conns(id, 0);
 		return;
 	}
 
@@ -1781,7 +1781,7 @@ ksocknal_notify (lnet_ni_t *ni, lnet_nid_t gw_nid, int alive)
 }
 
 void
-ksocknal_query (lnet_ni_t *ni, lnet_nid_t nid, unsigned long *when)
+ksocknal_query(lnet_ni_t *ni, lnet_nid_t nid, unsigned long *when)
 {
 	int		connect = 1;
 	unsigned long	 last_alive = 0;
@@ -1798,7 +1798,7 @@ ksocknal_query (lnet_ni_t *ni, lnet_nid_t nid, unsigned long *when)
 		ksock_conn_t     *conn;
 		int	       bufnob;
 
-		list_for_each (tmp, &peer->ksnp_conns) {
+		list_for_each(tmp, &peer->ksnp_conns) {
 			conn = list_entry(tmp, ksock_conn_t, ksnc_list);
 			bufnob = conn->ksnc_sock->sk->sk_wmem_queued;
 
@@ -1842,7 +1842,7 @@ ksocknal_query (lnet_ni_t *ni, lnet_nid_t nid, unsigned long *when)
 }
 
 static void
-ksocknal_push_peer (ksock_peer_t *peer)
+ksocknal_push_peer(ksock_peer_t *peer)
 {
 	int	       index;
 	int	       i;
@@ -1855,9 +1855,9 @@ ksocknal_push_peer (ksock_peer_t *peer)
 		i = 0;
 		conn = NULL;
 
-		list_for_each (tmp, &peer->ksnp_conns) {
+		list_for_each(tmp, &peer->ksnp_conns) {
 			if (i++ == index) {
-				conn = list_entry (tmp, ksock_conn_t,
+				conn = list_entry(tmp, ksock_conn_t,
 						       ksnc_list);
 				ksocknal_conn_addref(conn);
 				break;
@@ -1869,13 +1869,13 @@ ksocknal_push_peer (ksock_peer_t *peer)
 		if (conn == NULL)
 			break;
 
-		ksocknal_lib_push_conn (conn);
+		ksocknal_lib_push_conn(conn);
 		ksocknal_conn_decref(conn);
 	}
 }
 
 static int
-ksocknal_push (lnet_ni_t *ni, lnet_process_id_t id)
+ksocknal_push(lnet_ni_t *ni, lnet_process_id_t id)
 {
 	ksock_peer_t      *peer;
 	struct list_head	*tmp;
@@ -1891,7 +1891,7 @@ ksocknal_push (lnet_ni_t *ni, lnet_process_id_t id)
 			index = 0;
 			peer = NULL;
 
-			list_for_each (tmp, &ksocknal_data.ksnd_peers[i]) {
+			list_for_each(tmp, &ksocknal_data.ksnd_peers[i]) {
 				peer = list_entry(tmp, ksock_peer_t,
 						      ksnp_list);
 
@@ -1913,7 +1913,7 @@ ksocknal_push (lnet_ni_t *ni, lnet_process_id_t id)
 
 			if (peer != NULL) {
 				rc = 0;
-				ksocknal_push_peer (peer);
+				ksocknal_push_peer(peer);
 				ksocknal_peer_decref(peer);
 			}
 		}
@@ -2005,7 +2005,7 @@ ksocknal_peer_del_interface_locked(ksock_peer_t *peer, __u32 ipaddr)
 		}
 
 	list_for_each_safe(tmp, nxt, &peer->ksnp_routes) {
-		route = list_entry (tmp, ksock_route_t, ksnr_list);
+		route = list_entry(tmp, ksock_route_t, ksnr_list);
 
 		if (route->ksnr_myipaddr != ipaddr)
 			continue;
@@ -2022,7 +2022,7 @@ ksocknal_peer_del_interface_locked(ksock_peer_t *peer, __u32 ipaddr)
 		conn = list_entry(tmp, ksock_conn_t, ksnc_list);
 
 		if (conn->ksnc_myipaddr == ipaddr)
-			ksocknal_close_conn_locked (conn, 0);
+			ksocknal_close_conn_locked(conn, 0);
 	}
 }
 
@@ -2139,21 +2139,21 @@ ksocknal_ctl(lnet_ni_t *ni, unsigned int cmd, void *arg)
 	case IOC_LIBCFS_ADD_PEER:
 		id.nid = data->ioc_nid;
 		id.pid = LUSTRE_SRV_LNET_PID;
-		return ksocknal_add_peer (ni, id,
+		return ksocknal_add_peer(ni, id,
 					  data->ioc_u32[0], /* IP */
 					  data->ioc_u32[1]); /* port */
 
 	case IOC_LIBCFS_DEL_PEER:
 		id.nid = data->ioc_nid;
 		id.pid = LNET_PID_ANY;
-		return ksocknal_del_peer (ni, id,
+		return ksocknal_del_peer(ni, id,
 					  data->ioc_u32[0]); /* IP */
 
 	case IOC_LIBCFS_GET_CONN: {
 		int	   txmem;
 		int	   rxmem;
 		int	   nagle;
-		ksock_conn_t *conn = ksocknal_get_conn_by_idx (ni, data->ioc_count);
+		ksock_conn_t *conn = ksocknal_get_conn_by_idx(ni, data->ioc_count);
 
 		if (conn == NULL)
 			return -ENOENT;
@@ -2177,7 +2177,7 @@ ksocknal_ctl(lnet_ni_t *ni, unsigned int cmd, void *arg)
 	case IOC_LIBCFS_CLOSE_CONNECTION:
 		id.nid = data->ioc_nid;
 		id.pid = LNET_PID_ANY;
-		return ksocknal_close_matching_conns (id,
+		return ksocknal_close_matching_conns(id,
 						      data->ioc_u32[0]);
 
 	case IOC_LIBCFS_REGISTER_MYNID:
@@ -2202,9 +2202,9 @@ ksocknal_ctl(lnet_ni_t *ni, unsigned int cmd, void *arg)
 }
 
 static void
-ksocknal_free_buffers (void)
+ksocknal_free_buffers(void)
 {
-	LASSERT (atomic_read(&ksocknal_data.ksnd_nactive_txs) == 0);
+	LASSERT(atomic_read(&ksocknal_data.ksnd_nactive_txs) == 0);
 
 	if (ksocknal_data.ksnd_sched_info != NULL) {
 		struct ksock_sched_info	*info;
@@ -2220,8 +2220,8 @@ ksocknal_free_buffers (void)
 		cfs_percpt_free(ksocknal_data.ksnd_sched_info);
 	}
 
-	LIBCFS_FREE (ksocknal_data.ksnd_peers,
-		     sizeof (struct list_head) *
+	LIBCFS_FREE(ksocknal_data.ksnd_peers,
+		     sizeof(struct list_head) *
 		     ksocknal_data.ksnd_peer_hash_size);
 
 	spin_lock(&ksocknal_data.ksnd_tx_lock);
@@ -2253,25 +2253,25 @@ ksocknal_base_shutdown(void)
 	int			j;
 
 	CDEBUG(D_MALLOC, "before NAL cleanup: kmem %d\n",
-	       atomic_read (&libcfs_kmemory));
-	LASSERT (ksocknal_data.ksnd_nnets == 0);
+	       atomic_read(&libcfs_kmemory));
+	LASSERT(ksocknal_data.ksnd_nnets == 0);
 
 	switch (ksocknal_data.ksnd_init) {
 	default:
-		LASSERT (0);
+		LASSERT(0);
 
 	case SOCKNAL_INIT_ALL:
 	case SOCKNAL_INIT_DATA:
-		LASSERT (ksocknal_data.ksnd_peers != NULL);
+		LASSERT(ksocknal_data.ksnd_peers != NULL);
 		for (i = 0; i < ksocknal_data.ksnd_peer_hash_size; i++) {
-			LASSERT (list_empty (&ksocknal_data.ksnd_peers[i]));
+			LASSERT(list_empty(&ksocknal_data.ksnd_peers[i]));
 		}
 
 		LASSERT(list_empty(&ksocknal_data.ksnd_nets));
-		LASSERT (list_empty (&ksocknal_data.ksnd_enomem_conns));
-		LASSERT (list_empty (&ksocknal_data.ksnd_zombie_conns));
-		LASSERT (list_empty (&ksocknal_data.ksnd_connd_connreqs));
-		LASSERT (list_empty (&ksocknal_data.ksnd_connd_routes));
+		LASSERT(list_empty(&ksocknal_data.ksnd_enomem_conns));
+		LASSERT(list_empty(&ksocknal_data.ksnd_zombie_conns));
+		LASSERT(list_empty(&ksocknal_data.ksnd_connd_connreqs));
+		LASSERT(list_empty(&ksocknal_data.ksnd_connd_routes));
 
 		if (ksocknal_data.ksnd_sched_info != NULL) {
 			cfs_percpt_for_each(info, i,
@@ -2332,13 +2332,13 @@ ksocknal_base_shutdown(void)
 	}
 
 	CDEBUG(D_MALLOC, "after NAL cleanup: kmem %d\n",
-	       atomic_read (&libcfs_kmemory));
+	       atomic_read(&libcfs_kmemory));
 
 	module_put(THIS_MODULE);
 }
 
 static __u64
-ksocknal_new_incarnation (void)
+ksocknal_new_incarnation(void)
 {
 
 	/* The incarnation number is the time this module loaded and it
@@ -2354,14 +2354,14 @@ ksocknal_base_startup(void)
 	int			rc;
 	int			i;
 
-	LASSERT (ksocknal_data.ksnd_init == SOCKNAL_INIT_NOTHING);
-	LASSERT (ksocknal_data.ksnd_nnets == 0);
+	LASSERT(ksocknal_data.ksnd_init == SOCKNAL_INIT_NOTHING);
+	LASSERT(ksocknal_data.ksnd_nnets == 0);
 
-	memset (&ksocknal_data, 0, sizeof (ksocknal_data)); /* zero pointers */
+	memset(&ksocknal_data, 0, sizeof(ksocknal_data)); /* zero pointers */
 
 	ksocknal_data.ksnd_peer_hash_size = SOCKNAL_PEER_HASH_SIZE;
-	LIBCFS_ALLOC (ksocknal_data.ksnd_peers,
-		      sizeof (struct list_head) *
+	LIBCFS_ALLOC(ksocknal_data.ksnd_peers,
+		      sizeof(struct list_head) *
 		      ksocknal_data.ksnd_peer_hash_size);
 	if (ksocknal_data.ksnd_peers == NULL)
 		return -ENOMEM;
@@ -2373,18 +2373,18 @@ ksocknal_base_startup(void)
 	INIT_LIST_HEAD(&ksocknal_data.ksnd_nets);
 
 	spin_lock_init(&ksocknal_data.ksnd_reaper_lock);
-	INIT_LIST_HEAD (&ksocknal_data.ksnd_enomem_conns);
-	INIT_LIST_HEAD (&ksocknal_data.ksnd_zombie_conns);
-	INIT_LIST_HEAD (&ksocknal_data.ksnd_deathrow_conns);
+	INIT_LIST_HEAD(&ksocknal_data.ksnd_enomem_conns);
+	INIT_LIST_HEAD(&ksocknal_data.ksnd_zombie_conns);
+	INIT_LIST_HEAD(&ksocknal_data.ksnd_deathrow_conns);
 	init_waitqueue_head(&ksocknal_data.ksnd_reaper_waitq);
 
 	spin_lock_init(&ksocknal_data.ksnd_connd_lock);
-	INIT_LIST_HEAD (&ksocknal_data.ksnd_connd_connreqs);
-	INIT_LIST_HEAD (&ksocknal_data.ksnd_connd_routes);
+	INIT_LIST_HEAD(&ksocknal_data.ksnd_connd_connreqs);
+	INIT_LIST_HEAD(&ksocknal_data.ksnd_connd_routes);
 	init_waitqueue_head(&ksocknal_data.ksnd_connd_waitq);
 
 	spin_lock_init(&ksocknal_data.ksnd_tx_lock);
-	INIT_LIST_HEAD (&ksocknal_data.ksnd_idle_noop_txs);
+	INIT_LIST_HEAD(&ksocknal_data.ksnd_idle_noop_txs);
 
 	/* NB memset above zeros whole of ksocknal_data */
 
@@ -2465,7 +2465,7 @@ ksocknal_base_startup(void)
 
 	rc = ksocknal_thread_start(ksocknal_reaper, NULL, "socknal_reaper");
 	if (rc != 0) {
-		CERROR ("Can't spawn socknal reaper: %d\n", rc);
+		CERROR("Can't spawn socknal reaper: %d\n", rc);
 		goto failed;
 	}
 
@@ -2480,7 +2480,7 @@ ksocknal_base_startup(void)
 }
 
 static void
-ksocknal_debug_peerhash (lnet_ni_t *ni)
+ksocknal_debug_peerhash(lnet_ni_t *ni)
 {
 	ksock_peer_t	*peer = NULL;
 	struct list_head	*tmp;
@@ -2489,8 +2489,8 @@ ksocknal_debug_peerhash (lnet_ni_t *ni)
 	read_lock(&ksocknal_data.ksnd_global_lock);
 
 	for (i = 0; i < ksocknal_data.ksnd_peer_hash_size; i++) {
-		list_for_each (tmp, &ksocknal_data.ksnd_peers[i]) {
-			peer = list_entry (tmp, ksock_peer_t, ksnp_list);
+		list_for_each(tmp, &ksocknal_data.ksnd_peers[i]) {
+			peer = list_entry(tmp, ksock_peer_t, ksnp_list);
 
 			if (peer->ksnp_ni == ni)
 				break;
@@ -2512,7 +2512,7 @@ ksocknal_debug_peerhash (lnet_ni_t *ni)
 		      !list_empty(&peer->ksnp_tx_queue),
 		      !list_empty(&peer->ksnp_zc_req_list));
 
-		list_for_each (tmp, &peer->ksnp_routes) {
+		list_for_each(tmp, &peer->ksnp_routes) {
 			route = list_entry(tmp, ksock_route_t, ksnr_list);
 			CWARN("Route: ref %d, schd %d, conn %d, cnted %d, del %d\n",
 			      atomic_read(&route->ksnr_refcount),
@@ -2520,9 +2520,9 @@ ksocknal_debug_peerhash (lnet_ni_t *ni)
 			      route->ksnr_connected, route->ksnr_deleted);
 		}
 
-		list_for_each (tmp, &peer->ksnp_conns) {
+		list_for_each(tmp, &peer->ksnp_conns) {
 			conn = list_entry(tmp, ksock_conn_t, ksnc_list);
-			CWARN ("Conn: ref %d, sref %d, t %d, c %d\n",
+			CWARN("Conn: ref %d, sref %d, t %d, c %d\n",
 			       atomic_read(&conn->ksnc_conn_refcount),
 			       atomic_read(&conn->ksnc_sock_refcount),
 			       conn->ksnc_type, conn->ksnc_closing);
@@ -2534,7 +2534,7 @@ ksocknal_debug_peerhash (lnet_ni_t *ni)
 }
 
 void
-ksocknal_shutdown (lnet_ni_t *ni)
+ksocknal_shutdown(lnet_ni_t *ni)
 {
 	ksock_net_t      *net = ni->ni_data;
 	int	       i;
@@ -2573,8 +2573,8 @@ ksocknal_shutdown (lnet_ni_t *ni)
 	spin_unlock_bh(&net->ksnn_lock);
 
 	for (i = 0; i < net->ksnn_ninterfaces; i++) {
-		LASSERT (net->ksnn_interfaces[i].ksni_npeers == 0);
-		LASSERT (net->ksnn_interfaces[i].ksni_nroutes == 0);
+		LASSERT(net->ksnn_interfaces[i].ksni_npeers == 0);
+		LASSERT(net->ksnn_interfaces[i].ksni_nroutes == 0);
 	}
 
 	list_del(&net->ksnn_list);
@@ -2757,13 +2757,13 @@ ksocknal_net_start_threads(ksock_net_t *net, __u32 *cpts, int ncpts)
 }
 
 int
-ksocknal_startup (lnet_ni_t *ni)
+ksocknal_startup(lnet_ni_t *ni)
 {
 	ksock_net_t  *net;
 	int	   rc;
 	int	   i;
 
-	LASSERT (ni->ni_lnd == &the_ksocklnd);
+	LASSERT(ni->ni_lnd == &the_ksocklnd);
 
 	if (ksocknal_data.ksnd_init == SOCKNAL_INIT_NOTHING) {
 		rc = ksocknal_base_startup();
@@ -2843,19 +2843,19 @@ ksocknal_startup (lnet_ni_t *ni)
 
 
 static void __exit
-ksocknal_module_fini (void)
+ksocknal_module_fini(void)
 {
 	lnet_unregister_lnd(&the_ksocklnd);
 }
 
 static int __init
-ksocknal_module_init (void)
+ksocknal_module_init(void)
 {
 	int    rc;
 
 	/* check ksnr_connected/connecting field large enough */
-	CLASSERT (SOCKLND_CONN_NTYPES <= 4);
-	CLASSERT (SOCKLND_CONN_ACK == SOCKLND_CONN_BULK_IN);
+	CLASSERT(SOCKLND_CONN_NTYPES <= 4);
+	CLASSERT(SOCKLND_CONN_ACK == SOCKLND_CONN_BULK_IN);
 
 	/* initialize the_ksocklnd */
 	the_ksocklnd.lnd_type     = SOCKLND;
diff --git a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd.h b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd.h
index 03488d2..c54c995 100644
--- a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd.h
+++ b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd.h
@@ -406,7 +406,7 @@ ksocknal_route_mask(void)
 }
 
 static inline struct list_head *
-ksocknal_nid2peerlist (lnet_nid_t nid)
+ksocknal_nid2peerlist(lnet_nid_t nid)
 {
 	unsigned int hash = ((unsigned int)nid) % ksocknal_data.ksnd_peer_hash_size;
 
@@ -414,25 +414,25 @@ ksocknal_nid2peerlist (lnet_nid_t nid)
 }
 
 static inline void
-ksocknal_conn_addref (ksock_conn_t *conn)
+ksocknal_conn_addref(ksock_conn_t *conn)
 {
-	LASSERT (atomic_read(&conn->ksnc_conn_refcount) > 0);
+	LASSERT(atomic_read(&conn->ksnc_conn_refcount) > 0);
 	atomic_inc(&conn->ksnc_conn_refcount);
 }
 
-extern void ksocknal_queue_zombie_conn (ksock_conn_t *conn);
+extern void ksocknal_queue_zombie_conn(ksock_conn_t *conn);
 extern void ksocknal_finalize_zcreq(ksock_conn_t *conn);
 
 static inline void
-ksocknal_conn_decref (ksock_conn_t *conn)
+ksocknal_conn_decref(ksock_conn_t *conn)
 {
-	LASSERT (atomic_read(&conn->ksnc_conn_refcount) > 0);
+	LASSERT(atomic_read(&conn->ksnc_conn_refcount) > 0);
 	if (atomic_dec_and_test(&conn->ksnc_conn_refcount))
 		ksocknal_queue_zombie_conn(conn);
 }
 
 static inline int
-ksocknal_connsock_addref (ksock_conn_t *conn)
+ksocknal_connsock_addref(ksock_conn_t *conn)
 {
 	int   rc = -ESHUTDOWN;
 
@@ -448,11 +448,11 @@ ksocknal_connsock_addref (ksock_conn_t *conn)
 }
 
 static inline void
-ksocknal_connsock_decref (ksock_conn_t *conn)
+ksocknal_connsock_decref(ksock_conn_t *conn)
 {
-	LASSERT (atomic_read(&conn->ksnc_sock_refcount) > 0);
+	LASSERT(atomic_read(&conn->ksnc_sock_refcount) > 0);
 	if (atomic_dec_and_test(&conn->ksnc_sock_refcount)) {
-		LASSERT (conn->ksnc_closing);
+		LASSERT(conn->ksnc_closing);
 		libcfs_sock_release(conn->ksnc_sock);
 		conn->ksnc_sock = NULL;
 		ksocknal_finalize_zcreq(conn);
@@ -460,61 +460,61 @@ ksocknal_connsock_decref (ksock_conn_t *conn)
 }
 
 static inline void
-ksocknal_tx_addref (ksock_tx_t *tx)
+ksocknal_tx_addref(ksock_tx_t *tx)
 {
-	LASSERT (atomic_read(&tx->tx_refcount) > 0);
+	LASSERT(atomic_read(&tx->tx_refcount) > 0);
 	atomic_inc(&tx->tx_refcount);
 }
 
-extern void ksocknal_tx_prep (ksock_conn_t *, ksock_tx_t *tx);
-extern void ksocknal_tx_done (lnet_ni_t *ni, ksock_tx_t *tx);
+extern void ksocknal_tx_prep(ksock_conn_t *, ksock_tx_t *tx);
+extern void ksocknal_tx_done(lnet_ni_t *ni, ksock_tx_t *tx);
 
 static inline void
-ksocknal_tx_decref (ksock_tx_t *tx)
+ksocknal_tx_decref(ksock_tx_t *tx)
 {
-	LASSERT (atomic_read(&tx->tx_refcount) > 0);
+	LASSERT(atomic_read(&tx->tx_refcount) > 0);
 	if (atomic_dec_and_test(&tx->tx_refcount))
 		ksocknal_tx_done(NULL, tx);
 }
 
 static inline void
-ksocknal_route_addref (ksock_route_t *route)
+ksocknal_route_addref(ksock_route_t *route)
 {
-	LASSERT (atomic_read(&route->ksnr_refcount) > 0);
+	LASSERT(atomic_read(&route->ksnr_refcount) > 0);
 	atomic_inc(&route->ksnr_refcount);
 }
 
-extern void ksocknal_destroy_route (ksock_route_t *route);
+extern void ksocknal_destroy_route(ksock_route_t *route);
 
 static inline void
-ksocknal_route_decref (ksock_route_t *route)
+ksocknal_route_decref(ksock_route_t *route)
 {
-	LASSERT (atomic_read (&route->ksnr_refcount) > 0);
+	LASSERT(atomic_read(&route->ksnr_refcount) > 0);
 	if (atomic_dec_and_test(&route->ksnr_refcount))
-		ksocknal_destroy_route (route);
+		ksocknal_destroy_route(route);
 }
 
 static inline void
-ksocknal_peer_addref (ksock_peer_t *peer)
+ksocknal_peer_addref(ksock_peer_t *peer)
 {
-	LASSERT (atomic_read (&peer->ksnp_refcount) > 0);
+	LASSERT(atomic_read(&peer->ksnp_refcount) > 0);
 	atomic_inc(&peer->ksnp_refcount);
 }
 
-extern void ksocknal_destroy_peer (ksock_peer_t *peer);
+extern void ksocknal_destroy_peer(ksock_peer_t *peer);
 
 static inline void
-ksocknal_peer_decref (ksock_peer_t *peer)
+ksocknal_peer_decref(ksock_peer_t *peer)
 {
-	LASSERT (atomic_read (&peer->ksnp_refcount) > 0);
+	LASSERT(atomic_read(&peer->ksnp_refcount) > 0);
 	if (atomic_dec_and_test(&peer->ksnp_refcount))
-		ksocknal_destroy_peer (peer);
+		ksocknal_destroy_peer(peer);
 }
 
-int ksocknal_startup (lnet_ni_t *ni);
-void ksocknal_shutdown (lnet_ni_t *ni);
+int ksocknal_startup(lnet_ni_t *ni);
+void ksocknal_shutdown(lnet_ni_t *ni);
 int ksocknal_ctl(lnet_ni_t *ni, unsigned int cmd, void *arg);
-int ksocknal_send (lnet_ni_t *ni, void *private, lnet_msg_t *lntmsg);
+int ksocknal_send(lnet_ni_t *ni, void *private, lnet_msg_t *lntmsg);
 int ksocknal_recv(lnet_ni_t *ni, void *private, lnet_msg_t *lntmsg,
 		  int delayed, unsigned int niov,
 		  struct kvec *iov, lnet_kiov_t *kiov,
@@ -522,44 +522,44 @@ int ksocknal_recv(lnet_ni_t *ni, void *private, lnet_msg_t *lntmsg,
 int ksocknal_accept(lnet_ni_t *ni, struct socket *sock);
 
 extern int ksocknal_add_peer(lnet_ni_t *ni, lnet_process_id_t id, __u32 ip, int port);
-extern ksock_peer_t *ksocknal_find_peer_locked (lnet_ni_t *ni, lnet_process_id_t id);
-extern ksock_peer_t *ksocknal_find_peer (lnet_ni_t *ni, lnet_process_id_t id);
-extern void ksocknal_peer_failed (ksock_peer_t *peer);
-extern int ksocknal_create_conn (lnet_ni_t *ni, ksock_route_t *route,
+extern ksock_peer_t *ksocknal_find_peer_locked(lnet_ni_t *ni, lnet_process_id_t id);
+extern ksock_peer_t *ksocknal_find_peer(lnet_ni_t *ni, lnet_process_id_t id);
+extern void ksocknal_peer_failed(ksock_peer_t *peer);
+extern int ksocknal_create_conn(lnet_ni_t *ni, ksock_route_t *route,
 				 struct socket *sock, int type);
-extern void ksocknal_close_conn_locked (ksock_conn_t *conn, int why);
-extern void ksocknal_terminate_conn (ksock_conn_t *conn);
-extern void ksocknal_destroy_conn (ksock_conn_t *conn);
-extern int  ksocknal_close_peer_conns_locked (ksock_peer_t *peer,
+extern void ksocknal_close_conn_locked(ksock_conn_t *conn, int why);
+extern void ksocknal_terminate_conn(ksock_conn_t *conn);
+extern void ksocknal_destroy_conn(ksock_conn_t *conn);
+extern int  ksocknal_close_peer_conns_locked(ksock_peer_t *peer,
 					      __u32 ipaddr, int why);
-extern int ksocknal_close_conn_and_siblings (ksock_conn_t *conn, int why);
-extern int ksocknal_close_matching_conns (lnet_process_id_t id, __u32 ipaddr);
+extern int ksocknal_close_conn_and_siblings(ksock_conn_t *conn, int why);
+extern int ksocknal_close_matching_conns(lnet_process_id_t id, __u32 ipaddr);
 extern ksock_conn_t *ksocknal_find_conn_locked(ksock_peer_t *peer,
 					       ksock_tx_t *tx, int nonblk);
 
 extern int  ksocknal_launch_packet(lnet_ni_t *ni, ksock_tx_t *tx,
 				   lnet_process_id_t id);
 extern ksock_tx_t *ksocknal_alloc_tx(int type, int size);
-extern void ksocknal_free_tx (ksock_tx_t *tx);
+extern void ksocknal_free_tx(ksock_tx_t *tx);
 extern ksock_tx_t *ksocknal_alloc_tx_noop(__u64 cookie, int nonblk);
 extern void ksocknal_next_tx_carrier(ksock_conn_t *conn);
-extern void ksocknal_queue_tx_locked (ksock_tx_t *tx, ksock_conn_t *conn);
-extern void ksocknal_txlist_done (lnet_ni_t *ni, struct list_head *txlist,
+extern void ksocknal_queue_tx_locked(ksock_tx_t *tx, ksock_conn_t *conn);
+extern void ksocknal_txlist_done(lnet_ni_t *ni, struct list_head *txlist,
 				  int error);
-extern void ksocknal_notify (lnet_ni_t *ni, lnet_nid_t gw_nid, int alive);
-extern void ksocknal_query (struct lnet_ni *ni, lnet_nid_t nid, unsigned long *when);
+extern void ksocknal_notify(lnet_ni_t *ni, lnet_nid_t gw_nid, int alive);
+extern void ksocknal_query(struct lnet_ni *ni, lnet_nid_t nid, unsigned long *when);
 extern int ksocknal_thread_start(int (*fn)(void *arg), void *arg, char *name);
-extern void ksocknal_thread_fini (void);
-extern void ksocknal_launch_all_connections_locked (ksock_peer_t *peer);
-extern ksock_route_t *ksocknal_find_connectable_route_locked (ksock_peer_t *peer);
-extern ksock_route_t *ksocknal_find_connecting_route_locked (ksock_peer_t *peer);
-extern int ksocknal_new_packet (ksock_conn_t *conn, int skip);
-extern int ksocknal_scheduler (void *arg);
-extern int ksocknal_connd (void *arg);
-extern int ksocknal_reaper (void *arg);
-extern int ksocknal_send_hello (lnet_ni_t *ni, ksock_conn_t *conn,
+extern void ksocknal_thread_fini(void);
+extern void ksocknal_launch_all_connections_locked(ksock_peer_t *peer);
+extern ksock_route_t *ksocknal_find_connectable_route_locked(ksock_peer_t *peer);
+extern ksock_route_t *ksocknal_find_connecting_route_locked(ksock_peer_t *peer);
+extern int ksocknal_new_packet(ksock_conn_t *conn, int skip);
+extern int ksocknal_scheduler(void *arg);
+extern int ksocknal_connd(void *arg);
+extern int ksocknal_reaper(void *arg);
+extern int ksocknal_send_hello(lnet_ni_t *ni, ksock_conn_t *conn,
 				lnet_nid_t peer_nid, ksock_hello_msg_t *hello);
-extern int ksocknal_recv_hello (lnet_ni_t *ni, ksock_conn_t *conn,
+extern int ksocknal_recv_hello(lnet_ni_t *ni, ksock_conn_t *conn,
 				ksock_hello_msg_t *hello, lnet_process_id_t *id,
 				__u64 *incarnation);
 extern void ksocknal_read_callback(ksock_conn_t *conn);
@@ -569,15 +569,15 @@ extern int ksocknal_lib_zc_capable(ksock_conn_t *conn);
 extern void ksocknal_lib_save_callback(struct socket *sock, ksock_conn_t *conn);
 extern void ksocknal_lib_set_callback(struct socket *sock,  ksock_conn_t *conn);
 extern void ksocknal_lib_reset_callback(struct socket *sock, ksock_conn_t *conn);
-extern void ksocknal_lib_push_conn (ksock_conn_t *conn);
-extern int ksocknal_lib_get_conn_addrs (ksock_conn_t *conn);
-extern int ksocknal_lib_setup_sock (struct socket *so);
-extern int ksocknal_lib_send_iov (ksock_conn_t *conn, ksock_tx_t *tx);
-extern int ksocknal_lib_send_kiov (ksock_conn_t *conn, ksock_tx_t *tx);
-extern void ksocknal_lib_eager_ack (ksock_conn_t *conn);
-extern int ksocknal_lib_recv_iov (ksock_conn_t *conn);
-extern int ksocknal_lib_recv_kiov (ksock_conn_t *conn);
-extern int ksocknal_lib_get_conn_tunables (ksock_conn_t *conn, int *txmem,
+extern void ksocknal_lib_push_conn(ksock_conn_t *conn);
+extern int ksocknal_lib_get_conn_addrs(ksock_conn_t *conn);
+extern int ksocknal_lib_setup_sock(struct socket *so);
+extern int ksocknal_lib_send_iov(ksock_conn_t *conn, ksock_tx_t *tx);
+extern int ksocknal_lib_send_kiov(ksock_conn_t *conn, ksock_tx_t *tx);
+extern void ksocknal_lib_eager_ack(ksock_conn_t *conn);
+extern int ksocknal_lib_recv_iov(ksock_conn_t *conn);
+extern int ksocknal_lib_recv_kiov(ksock_conn_t *conn);
+extern int ksocknal_lib_get_conn_tunables(ksock_conn_t *conn, int *txmem,
 					   int *rxmem, int *nagle);
 
 extern int ksocknal_tunables_init(void);
diff --git a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_cb.c b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_cb.c
index 92760fe..fa7ad88 100644
--- a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_cb.c
+++ b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_cb.c
@@ -1374,9 +1374,9 @@ ksocknal_sched_cansleep(ksock_sched_t *sched)
 
 	spin_lock_bh(&sched->kss_lock);
 
-	rc = (!ksocknal_data.ksnd_shuttingdown &&
+	rc = !ksocknal_data.ksnd_shuttingdown &&
 	      list_empty(&sched->kss_rx_conns) &&
-	      list_empty(&sched->kss_tx_conns));
+	      list_empty(&sched->kss_tx_conns);
 
 	spin_unlock_bh(&sched->kss_lock);
 	return rc;
diff --git a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_lib-linux.c b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_lib-linux.c
index 66cc509..f5e8ab0 100644
--- a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_lib-linux.c
+++ b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_lib-linux.c
@@ -37,24 +37,24 @@
 #include "socklnd.h"
 
 int
-ksocknal_lib_get_conn_addrs (ksock_conn_t *conn)
+ksocknal_lib_get_conn_addrs(ksock_conn_t *conn)
 {
 	int rc = libcfs_sock_getaddr(conn->ksnc_sock, 1,
 				     &conn->ksnc_ipaddr,
 				     &conn->ksnc_port);
 
 	/* Didn't need the {get,put}connsock dance to deref ksnc_sock... */
-	LASSERT (!conn->ksnc_closing);
+	LASSERT(!conn->ksnc_closing);
 
 	if (rc != 0) {
-		CERROR ("Error %d getting sock peer IP\n", rc);
+		CERROR("Error %d getting sock peer IP\n", rc);
 		return rc;
 	}
 
 	rc = libcfs_sock_getaddr(conn->ksnc_sock, 0,
 				 &conn->ksnc_myipaddr, NULL);
 	if (rc != 0) {
-		CERROR ("Error %d getting sock local IP\n", rc);
+		CERROR("Error %d getting sock local IP\n", rc);
 		return rc;
 	}
 
@@ -75,7 +75,7 @@ ksocknal_lib_zc_capable(ksock_conn_t *conn)
 }
 
 int
-ksocknal_lib_send_iov (ksock_conn_t *conn, ksock_tx_t *tx)
+ksocknal_lib_send_iov(ksock_conn_t *conn, ksock_tx_t *tx)
 {
 	struct socket *sock = conn->ksnc_sock;
 	int	    nob;
@@ -117,7 +117,7 @@ ksocknal_lib_send_iov (ksock_conn_t *conn, ksock_tx_t *tx)
 }
 
 int
-ksocknal_lib_send_kiov (ksock_conn_t *conn, ksock_tx_t *tx)
+ksocknal_lib_send_kiov(ksock_conn_t *conn, ksock_tx_t *tx)
 {
 	struct socket *sock = conn->ksnc_sock;
 	lnet_kiov_t   *kiov = tx->tx_kiov;
@@ -125,7 +125,7 @@ ksocknal_lib_send_kiov (ksock_conn_t *conn, ksock_tx_t *tx)
 	int	    nob;
 
 	/* Not NOOP message */
-	LASSERT (tx->tx_lnetmsg != NULL);
+	LASSERT(tx->tx_lnetmsg != NULL);
 
 	/* NB we can't trust socket ops to either consume our iovs
 	 * or leave them alone. */
@@ -185,7 +185,7 @@ ksocknal_lib_send_kiov (ksock_conn_t *conn, ksock_tx_t *tx)
 }
 
 void
-ksocknal_lib_eager_ack (ksock_conn_t *conn)
+ksocknal_lib_eager_ack(ksock_conn_t *conn)
 {
 	int	    opt = 1;
 	struct socket *sock = conn->ksnc_sock;
@@ -196,11 +196,11 @@ ksocknal_lib_eager_ack (ksock_conn_t *conn)
 	 * peer. */
 
 	kernel_setsockopt(sock, SOL_TCP, TCP_QUICKACK,
-			       (char *)&opt, sizeof (opt));
+			       (char *)&opt, sizeof(opt));
 }
 
 int
-ksocknal_lib_recv_iov (ksock_conn_t *conn)
+ksocknal_lib_recv_iov(ksock_conn_t *conn)
 {
 #if SOCKNAL_SINGLE_FRAG_RX
 	struct kvec  scratch;
@@ -223,13 +223,13 @@ ksocknal_lib_recv_iov (ksock_conn_t *conn)
 
 	/* NB we can't trust socket ops to either consume our iovs
 	 * or leave them alone. */
-	LASSERT (niov > 0);
+	LASSERT(niov > 0);
 
 	for (nob = i = 0; i < niov; i++) {
 		scratchiov[i] = iov[i];
 		nob += scratchiov[i].iov_len;
 	}
-	LASSERT (nob <= conn->ksnc_rx_nob_wanted);
+	LASSERT(nob <= conn->ksnc_rx_nob_wanted);
 
 	rc = kernel_recvmsg(conn->ksnc_sock, &msg,
 		scratchiov, niov, nob, MSG_DONTWAIT);
@@ -243,7 +243,7 @@ ksocknal_lib_recv_iov (ksock_conn_t *conn)
 	if (saved_csum != 0) {
 		/* accumulate checksum */
 		for (i = 0, sum = rc; sum > 0; i++, sum -= fragnob) {
-			LASSERT (i < niov);
+			LASSERT(i < niov);
 
 			fragnob = iov[i].iov_len;
 			if (fragnob > sum)
@@ -278,7 +278,7 @@ ksocknal_lib_kiov_vmap(lnet_kiov_t *kiov, int niov,
 	if (!*ksocknal_tunables.ksnd_zc_recv || pages == NULL)
 		return NULL;
 
-	LASSERT (niov <= LNET_MAX_IOV);
+	LASSERT(niov <= LNET_MAX_IOV);
 
 	if (niov < 2 ||
 	    niov < *ksocknal_tunables.ksnd_zc_recv_min_nfrags)
@@ -304,7 +304,7 @@ ksocknal_lib_kiov_vmap(lnet_kiov_t *kiov, int niov,
 }
 
 int
-ksocknal_lib_recv_kiov (ksock_conn_t *conn)
+ksocknal_lib_recv_kiov(ksock_conn_t *conn)
 {
 #if SOCKNAL_SINGLE_FRAG_RX || !SOCKNAL_RISK_KMAP_DEADLOCK
 	struct kvec   scratch;
@@ -348,14 +348,14 @@ ksocknal_lib_recv_kiov (ksock_conn_t *conn)
 		n = niov;
 	}
 
-	LASSERT (nob <= conn->ksnc_rx_nob_wanted);
+	LASSERT(nob <= conn->ksnc_rx_nob_wanted);
 
 	rc = kernel_recvmsg(conn->ksnc_sock, &msg,
 			(struct kvec *)scratchiov, n, nob, MSG_DONTWAIT);
 
 	if (conn->ksnc_msg.ksm_csum != 0) {
 		for (i = 0, sum = rc; sum > 0; i++, sum -= fragnob) {
-			LASSERT (i < niov);
+			LASSERT(i < niov);
 
 			/* Dang! have to kmap again because I have nowhere to stash the
 			 * mapped address.  But by doing it while the page is still
@@ -423,7 +423,7 @@ ksocknal_lib_csum_tx(ksock_tx_t *tx)
 }
 
 int
-ksocknal_lib_get_conn_tunables (ksock_conn_t *conn, int *txmem, int *rxmem, int *nagle)
+ksocknal_lib_get_conn_tunables(ksock_conn_t *conn, int *txmem, int *rxmem, int *nagle)
 {
 	struct socket *sock = conn->ksnc_sock;
 	int	    len;
@@ -431,7 +431,7 @@ ksocknal_lib_get_conn_tunables (ksock_conn_t *conn, int *txmem, int *rxmem, int
 
 	rc = ksocknal_connsock_addref(conn);
 	if (rc != 0) {
-		LASSERT (conn->ksnc_closing);
+		LASSERT(conn->ksnc_closing);
 		*txmem = *rxmem = *nagle = 0;
 		return -ESHUTDOWN;
 	}
@@ -454,7 +454,7 @@ ksocknal_lib_get_conn_tunables (ksock_conn_t *conn, int *txmem, int *rxmem, int
 }
 
 int
-ksocknal_lib_setup_sock (struct socket *sock)
+ksocknal_lib_setup_sock(struct socket *sock)
 {
 	int	     rc;
 	int	     option;
@@ -473,17 +473,17 @@ ksocknal_lib_setup_sock (struct socket *sock)
 	linger.l_linger = 0;
 
 	rc = kernel_setsockopt(sock, SOL_SOCKET, SO_LINGER,
-			      (char *)&linger, sizeof (linger));
+			      (char *)&linger, sizeof(linger));
 	if (rc != 0) {
-		CERROR ("Can't set SO_LINGER: %d\n", rc);
+		CERROR("Can't set SO_LINGER: %d\n", rc);
 		return rc;
 	}
 
 	option = -1;
 	rc = kernel_setsockopt(sock, SOL_TCP, TCP_LINGER2,
-				    (char *)&option, sizeof (option));
+				    (char *)&option, sizeof(option));
 	if (rc != 0) {
-		CERROR ("Can't set SO_LINGER2: %d\n", rc);
+		CERROR("Can't set SO_LINGER2: %d\n", rc);
 		return rc;
 	}
 
@@ -491,9 +491,9 @@ ksocknal_lib_setup_sock (struct socket *sock)
 		option = 1;
 
 		rc = kernel_setsockopt(sock, SOL_TCP, TCP_NODELAY,
-					    (char *)&option, sizeof (option));
+					    (char *)&option, sizeof(option));
 		if (rc != 0) {
-			CERROR ("Can't disable nagle: %d\n", rc);
+			CERROR("Can't disable nagle: %d\n", rc);
 			return rc;
 		}
 	}
@@ -502,7 +502,7 @@ ksocknal_lib_setup_sock (struct socket *sock)
 				*ksocknal_tunables.ksnd_tx_buffer_size,
 				*ksocknal_tunables.ksnd_rx_buffer_size);
 	if (rc != 0) {
-		CERROR ("Can't set buffer tx %d, rx %d buffers: %d\n",
+		CERROR("Can't set buffer tx %d, rx %d buffers: %d\n",
 			*ksocknal_tunables.ksnd_tx_buffer_size,
 			*ksocknal_tunables.ksnd_rx_buffer_size, rc);
 		return rc;
@@ -519,9 +519,9 @@ ksocknal_lib_setup_sock (struct socket *sock)
 
 	option = (do_keepalive ? 1 : 0);
 	rc = kernel_setsockopt(sock, SOL_SOCKET, SO_KEEPALIVE,
-			      (char *)&option, sizeof (option));
+			      (char *)&option, sizeof(option));
 	if (rc != 0) {
-		CERROR ("Can't set SO_KEEPALIVE: %d\n", rc);
+		CERROR("Can't set SO_KEEPALIVE: %d\n", rc);
 		return rc;
 	}
 
@@ -529,23 +529,23 @@ ksocknal_lib_setup_sock (struct socket *sock)
 		return 0;
 
 	rc = kernel_setsockopt(sock, SOL_TCP, TCP_KEEPIDLE,
-				    (char *)&keep_idle, sizeof (keep_idle));
+				    (char *)&keep_idle, sizeof(keep_idle));
 	if (rc != 0) {
-		CERROR ("Can't set TCP_KEEPIDLE: %d\n", rc);
+		CERROR("Can't set TCP_KEEPIDLE: %d\n", rc);
 		return rc;
 	}
 
 	rc = kernel_setsockopt(sock, SOL_TCP, TCP_KEEPINTVL,
-				    (char *)&keep_intvl, sizeof (keep_intvl));
+				    (char *)&keep_intvl, sizeof(keep_intvl));
 	if (rc != 0) {
-		CERROR ("Can't set TCP_KEEPINTVL: %d\n", rc);
+		CERROR("Can't set TCP_KEEPINTVL: %d\n", rc);
 		return rc;
 	}
 
 	rc = kernel_setsockopt(sock, SOL_TCP, TCP_KEEPCNT,
-				    (char *)&keep_count, sizeof (keep_count));
+				    (char *)&keep_count, sizeof(keep_count));
 	if (rc != 0) {
-		CERROR ("Can't set TCP_KEEPCNT: %d\n", rc);
+		CERROR("Can't set TCP_KEEPCNT: %d\n", rc);
 		return rc;
 	}
 
@@ -553,7 +553,7 @@ ksocknal_lib_setup_sock (struct socket *sock)
 }
 
 void
-ksocknal_lib_push_conn (ksock_conn_t *conn)
+ksocknal_lib_push_conn(ksock_conn_t *conn)
 {
 	struct sock    *sk;
 	struct tcp_sock *tp;
@@ -568,29 +568,29 @@ ksocknal_lib_push_conn (ksock_conn_t *conn)
 	sk = conn->ksnc_sock->sk;
 	tp = tcp_sk(sk);
 
-	lock_sock (sk);
+	lock_sock(sk);
 	nonagle = tp->nonagle;
 	tp->nonagle = 1;
-	release_sock (sk);
+	release_sock(sk);
 
 	rc = kernel_setsockopt(conn->ksnc_sock, SOL_TCP, TCP_NODELAY,
-				      (char *)&val, sizeof (val));
-	LASSERT (rc == 0);
+				      (char *)&val, sizeof(val));
+	LASSERT(rc == 0);
 
-	lock_sock (sk);
+	lock_sock(sk);
 	tp->nonagle = nonagle;
-	release_sock (sk);
+	release_sock(sk);
 
 	ksocknal_connsock_decref(conn);
 }
 
-extern void ksocknal_read_callback (ksock_conn_t *conn);
-extern void ksocknal_write_callback (ksock_conn_t *conn);
+extern void ksocknal_read_callback(ksock_conn_t *conn);
+extern void ksocknal_write_callback(ksock_conn_t *conn);
 /*
  * socket call back in Linux
  */
 static void
-ksocknal_data_ready (struct sock *sk)
+ksocknal_data_ready(struct sock *sk)
 {
 	ksock_conn_t  *conn;
 
@@ -600,8 +600,8 @@ ksocknal_data_ready (struct sock *sk)
 
 	conn = sk->sk_user_data;
 	if (conn == NULL) {	     /* raced with ksocknal_terminate_conn */
-		LASSERT (sk->sk_data_ready != &ksocknal_data_ready);
-		sk->sk_data_ready (sk);
+		LASSERT(sk->sk_data_ready != &ksocknal_data_ready);
+		sk->sk_data_ready(sk);
 	} else
 		ksocknal_read_callback(conn);
 
@@ -609,7 +609,7 @@ ksocknal_data_ready (struct sock *sk)
 }
 
 static void
-ksocknal_write_space (struct sock *sk)
+ksocknal_write_space(struct sock *sk)
 {
 	ksock_conn_t  *conn;
 	int	    wspace;
@@ -629,12 +629,12 @@ ksocknal_write_space (struct sock *sk)
 				      " ready" : " blocked"),
 	       (conn == NULL) ? "" : (conn->ksnc_tx_scheduled ?
 				      " scheduled" : " idle"),
-	       (conn == NULL) ? "" : (list_empty (&conn->ksnc_tx_queue) ?
+	       (conn == NULL) ? "" : (list_empty(&conn->ksnc_tx_queue) ?
 				      " empty" : " queued"));
 
 	if (conn == NULL) {	     /* raced with ksocknal_terminate_conn */
-		LASSERT (sk->sk_write_space != &ksocknal_write_space);
-		sk->sk_write_space (sk);
+		LASSERT(sk->sk_write_space != &ksocknal_write_space);
+		sk->sk_write_space(sk);
 
 		read_unlock(&ksocknal_data.ksnd_global_lock);
 		return;
@@ -647,7 +647,7 @@ ksocknal_write_space (struct sock *sk)
 		 * ENOMEM check in ksocknal_transmit is race-free (think about
 		 * it). */
 
-		clear_bit (SOCK_NOSPACE, &sk->sk_socket->flags);
+		clear_bit(SOCK_NOSPACE, &sk->sk_socket->flags);
 	}
 
 	read_unlock(&ksocknal_data.ksnd_global_lock);
diff --git a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_lib-linux.h b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_lib-linux.h
index 7a793d2..f556388 100644
--- a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_lib-linux.h
+++ b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_lib-linux.h
@@ -50,8 +50,8 @@
 #include <net/tcp.h>
 #include <linux/uio.h>
 #include <linux/if.h>
+#include <linux/uaccess.h>
 
-#include <asm/uaccess.h>
 #include <asm/irq.h>
 
 #include <linux/fs.h>
diff --git a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_modparams.c b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_modparams.c
index 66d78c9..86b88db 100644
--- a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_modparams.c
+++ b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_modparams.c
@@ -72,7 +72,7 @@ static int typed_conns = 1;
 module_param(typed_conns, int, 0444);
 MODULE_PARM_DESC(typed_conns, "use different sockets for bulk");
 
-static int min_bulk = (1<<10);
+static int min_bulk = 1<<10;
 module_param(min_bulk, int, 0644);
 MODULE_PARM_DESC(min_bulk, "smallest 'large' message");
 
@@ -122,7 +122,7 @@ static int nonblk_zcack = 1;
 module_param(nonblk_zcack, int, 0644);
 MODULE_PARM_DESC(nonblk_zcack, "always send ZC-ACK on non-blocking connection");
 
-static unsigned int zc_min_payload = (16 << 10);
+static unsigned int zc_min_payload = 16 << 10;
 module_param(zc_min_payload, int, 0644);
 MODULE_PARM_DESC(zc_min_payload, "minimum payload size to zero copy");
 
@@ -182,7 +182,7 @@ int ksocknal_tunables_init(void)
 #endif
 
 	if (*ksocknal_tunables.ksnd_zc_min_payload < (2 << 10))
-		*ksocknal_tunables.ksnd_zc_min_payload = (2 << 10);
+		*ksocknal_tunables.ksnd_zc_min_payload = 2 << 10;
 
 	return 0;
 };
diff --git a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_proto.c b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_proto.c
index b2f88eb..8596581 100644
--- a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_proto.c
+++ b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_proto.c
@@ -55,8 +55,8 @@ ksocknal_next_tx_carrier(ksock_conn_t *conn)
 	ksock_tx_t     *tx = conn->ksnc_tx_carrier;
 
 	/* Called holding BH lock: conn->ksnc_scheduler->kss_lock */
-	LASSERT (!list_empty(&conn->ksnc_tx_queue));
-	LASSERT (tx != NULL);
+	LASSERT(!list_empty(&conn->ksnc_tx_queue));
+	LASSERT(tx != NULL);
 
 	/* Next TX that can carry ZC-ACK or LNet message */
 	if (tx->tx_list.next == &conn->ksnc_tx_queue) {
@@ -65,7 +65,7 @@ ksocknal_next_tx_carrier(ksock_conn_t *conn)
 	} else {
 		conn->ksnc_tx_carrier = list_entry(tx->tx_list.next,
 						       ksock_tx_t, tx_list);
-		LASSERT (conn->ksnc_tx_carrier->tx_msg.ksm_type == tx->tx_msg.ksm_type);
+		LASSERT(conn->ksnc_tx_carrier->tx_msg.ksm_type == tx->tx_msg.ksm_type);
 	}
 }
 
@@ -75,7 +75,7 @@ ksocknal_queue_tx_zcack_v2(ksock_conn_t *conn,
 {
 	ksock_tx_t *tx = conn->ksnc_tx_carrier;
 
-	LASSERT (tx_ack == NULL ||
+	LASSERT(tx_ack == NULL ||
 		 tx_ack->tx_msg.ksm_type == KSOCK_MSG_NOOP);
 
 	/*
@@ -139,7 +139,7 @@ ksocknal_queue_tx_msg_v2(ksock_conn_t *conn, ksock_tx_t *tx_msg)
 		return NULL;
 	}
 
-	LASSERT (tx->tx_msg.ksm_type == KSOCK_MSG_NOOP);
+	LASSERT(tx->tx_msg.ksm_type == KSOCK_MSG_NOOP);
 
 	/* There is a noop zc-ack can be piggybacked */
 	tx_msg->tx_msg.ksm_zc_cookies[1] = tx->tx_msg.ksm_zc_cookies[1];
@@ -162,7 +162,7 @@ ksocknal_queue_tx_zcack_v3(ksock_conn_t *conn,
 		return ksocknal_queue_tx_zcack_v2(conn, tx_ack, cookie);
 
 	/* non-blocking ZC-ACK (to router) */
-	LASSERT (tx_ack == NULL ||
+	LASSERT(tx_ack == NULL ||
 		 tx_ack->tx_msg.ksm_type == KSOCK_MSG_NOOP);
 
 	tx = conn->ksnc_tx_carrier;
@@ -185,7 +185,7 @@ ksocknal_queue_tx_zcack_v3(ksock_conn_t *conn,
 
 	if (tx->tx_msg.ksm_zc_cookies[1] == SOCKNAL_KEEPALIVE_PING) {
 		/* replace the keepalive PING with a real ACK */
-		LASSERT (tx->tx_msg.ksm_zc_cookies[0] == 0);
+		LASSERT(tx->tx_msg.ksm_zc_cookies[0] == 0);
 		tx->tx_msg.ksm_zc_cookies[1] = cookie;
 		return 1;
 	}
@@ -220,7 +220,7 @@ ksocknal_queue_tx_zcack_v3(ksock_conn_t *conn,
 		__u64   tmp = 0;
 
 		/* two separated cookies: (a+2, a) or (a+1, a) */
-		LASSERT (tx->tx_msg.ksm_zc_cookies[0] -
+		LASSERT(tx->tx_msg.ksm_zc_cookies[0] -
 			 tx->tx_msg.ksm_zc_cookies[1] <= 2);
 
 		if (tx->tx_msg.ksm_zc_cookies[0] -
@@ -408,7 +408,7 @@ ksocknal_handle_zcack(ksock_conn_t *conn, __u64 cookie1, __u64 cookie2)
 	ksock_peer_t      *peer = conn->ksnc_peer;
 	ksock_tx_t	*tx;
 	ksock_tx_t	*tmp;
-	LIST_HEAD     (zlist);
+	LIST_HEAD(zlist);
 	int		count;
 
 	if (cookie1 == 0)
@@ -450,7 +450,7 @@ ksocknal_handle_zcack(ksock_conn_t *conn, __u64 cookie1, __u64 cookie2)
 }
 
 static int
-ksocknal_send_hello_v1 (ksock_conn_t *conn, ksock_hello_msg_t *hello)
+ksocknal_send_hello_v1(ksock_conn_t *conn, ksock_hello_msg_t *hello)
 {
 	struct socket	*sock = conn->ksnc_sock;
 	lnet_hdr_t	  *hdr;
@@ -526,7 +526,7 @@ out:
 }
 
 static int
-ksocknal_send_hello_v2 (ksock_conn_t *conn, ksock_hello_msg_t *hello)
+ksocknal_send_hello_v2(ksock_conn_t *conn, ksock_hello_msg_t *hello)
 {
 	struct socket *sock = conn->ksnc_sock;
 	int	     rc;
@@ -584,12 +584,12 @@ ksocknal_recv_hello_v1(ksock_conn_t *conn, ksock_hello_msg_t *hello,
 	}
 
 	rc = libcfs_sock_read(sock, &hdr->src_nid,
-			      sizeof (*hdr) - offsetof (lnet_hdr_t, src_nid),
+			      sizeof(*hdr) - offsetof(lnet_hdr_t, src_nid),
 			      timeout);
 	if (rc != 0) {
 		CERROR("Error %d reading rest of HELLO hdr from %pI4h\n",
 			rc, &conn->ksnc_ipaddr);
-		LASSERT (rc < 0 && rc != -EALREADY);
+		LASSERT(rc < 0 && rc != -EALREADY);
 		goto out;
 	}
 
@@ -602,12 +602,12 @@ ksocknal_recv_hello_v1(ksock_conn_t *conn, ksock_hello_msg_t *hello,
 		goto out;
 	}
 
-	hello->kshm_src_nid	 = le64_to_cpu (hdr->src_nid);
-	hello->kshm_src_pid	 = le32_to_cpu (hdr->src_pid);
-	hello->kshm_src_incarnation = le64_to_cpu (hdr->msg.hello.incarnation);
-	hello->kshm_ctype	   = le32_to_cpu (hdr->msg.hello.type);
-	hello->kshm_nips	    = le32_to_cpu (hdr->payload_length) /
-					 sizeof (__u32);
+	hello->kshm_src_nid	 = le64_to_cpu(hdr->src_nid);
+	hello->kshm_src_pid	 = le32_to_cpu(hdr->src_pid);
+	hello->kshm_src_incarnation = le64_to_cpu(hdr->msg.hello.incarnation);
+	hello->kshm_ctype	   = le32_to_cpu(hdr->msg.hello.type);
+	hello->kshm_nips	    = le32_to_cpu(hdr->payload_length) /
+					 sizeof(__u32);
 
 	if (hello->kshm_nips > LNET_MAX_INTERFACES) {
 		CERROR("Bad nips %d from ip %pI4h\n",
@@ -645,7 +645,7 @@ out:
 }
 
 static int
-ksocknal_recv_hello_v2 (ksock_conn_t *conn, ksock_hello_msg_t *hello, int timeout)
+ksocknal_recv_hello_v2(ksock_conn_t *conn, ksock_hello_msg_t *hello, int timeout)
 {
 	struct socket   *sock = conn->ksnc_sock;
 	int		rc;
diff --git a/drivers/staging/lustre/lnet/lnet/api-ni.c b/drivers/staging/lustre/lnet/lnet/api-ni.c
index faceb95..4a14e51 100644
--- a/drivers/staging/lustre/lnet/lnet/api-ni.c
+++ b/drivers/staging/lustre/lnet/lnet/api-ni.c
@@ -650,15 +650,19 @@ lnet_prepare(lnet_pid_t requested_pid)
 
 	recs = lnet_res_containers_create(LNET_COOKIE_TYPE_ME, LNET_FL_MAX_MES,
 					  sizeof(lnet_me_t));
-	if (recs == NULL)
+	if (recs == NULL) {
+		rc = -ENOMEM;
 		goto failed;
+	}
 
 	the_lnet.ln_me_containers = recs;
 
 	recs = lnet_res_containers_create(LNET_COOKIE_TYPE_MD, LNET_FL_MAX_MDS,
 					  sizeof(lnet_libmd_t));
-	if (recs == NULL)
+	if (recs == NULL) {
+		rc = -ENOMEM;
 		goto failed;
+	}
 
 	the_lnet.ln_md_containers = recs;
 
diff --git a/drivers/staging/lustre/lnet/lnet/config.c b/drivers/staging/lustre/lnet/lnet/config.c
index af171e2..2dc4c4a 100644
--- a/drivers/staging/lustre/lnet/lnet/config.c
+++ b/drivers/staging/lustre/lnet/lnet/config.c
@@ -37,11 +37,11 @@
 #define DEBUG_SUBSYSTEM S_LNET
 #include "../../include/linux/lnet/lib-lnet.h"
 
-typedef struct {			    /* tmp struct for parsing routes */
+struct lnet_text_buf_t {	    /* tmp struct for parsing routes */
 	struct list_head	 ltb_list;	/* stash on lists */
 	int		ltb_size;	/* allocated size */
 	char	       ltb_text[0];     /* text buffer */
-} lnet_text_buf_t;
+};
 
 static int lnet_tbnob;			/* track text buf allocation */
 #define LNET_MAX_TEXTBUF_NOB     (64<<10)	/* bound allocation */
@@ -365,14 +365,14 @@ lnet_parse_networks(struct list_head *nilist, char *networks)
 	return -EINVAL;
 }
 
-static lnet_text_buf_t *
+static struct lnet_text_buf_t *
 lnet_new_text_buf(int str_len)
 {
-	lnet_text_buf_t *ltb;
+	struct lnet_text_buf_t *ltb;
 	int	      nob;
 
 	/* NB allocate space for the terminating 0 */
-	nob = offsetof(lnet_text_buf_t, ltb_text[str_len + 1]);
+	nob = offsetof(struct lnet_text_buf_t, ltb_text[str_len + 1]);
 	if (nob > LNET_SINGLE_TEXTBUF_NOB) {
 		/* _way_ conservative for "route net gateway..." */
 		CERROR("text buffer too big\n");
@@ -395,7 +395,7 @@ lnet_new_text_buf(int str_len)
 }
 
 static void
-lnet_free_text_buf(lnet_text_buf_t *ltb)
+lnet_free_text_buf(struct lnet_text_buf_t *ltb)
 {
 	lnet_tbnob -= ltb->ltb_size;
 	LIBCFS_FREE(ltb, ltb->ltb_size);
@@ -404,10 +404,10 @@ lnet_free_text_buf(lnet_text_buf_t *ltb)
 static void
 lnet_free_text_bufs(struct list_head *tbs)
 {
-	lnet_text_buf_t  *ltb;
+	struct lnet_text_buf_t  *ltb;
 
 	while (!list_empty(tbs)) {
-		ltb = list_entry(tbs->next, lnet_text_buf_t, ltb_list);
+		ltb = list_entry(tbs->next, struct lnet_text_buf_t, ltb_list);
 
 		list_del(&ltb->ltb_list);
 		lnet_free_text_buf(ltb);
@@ -421,7 +421,7 @@ lnet_str2tbs_sep(struct list_head *tbs, char *str)
 	char	     *sep;
 	int	       nob;
 	int	       i;
-	lnet_text_buf_t  *ltb;
+	struct lnet_text_buf_t  *ltb;
 
 	INIT_LIST_HEAD(&pending);
 
@@ -479,7 +479,7 @@ lnet_expand1tb(struct list_head *list,
 {
 	int	      len1 = (int)(sep1 - str);
 	int	      len2 = strlen(sep2 + 1);
-	lnet_text_buf_t *ltb;
+	struct lnet_text_buf_t *ltb;
 
 	LASSERT(*sep1 == '[');
 	LASSERT(*sep2 == ']');
@@ -532,14 +532,18 @@ lnet_str2tbs_expand(struct list_head *tbs, char *str)
 		if (enditem == parsed)		/* no empty items */
 			goto failed;
 
-		if (sscanf(parsed, "%d-%d/%d%n", &lo, &hi, &stride, &scanned) < 3) {
+		if (sscanf(parsed, "%d-%d/%d%n", &lo, &hi,
+			   &stride, &scanned) < 3) {
 
 			if (sscanf(parsed, "%d-%d%n", &lo, &hi, &scanned) < 2) {
 
 				/* simple string enumeration */
-				if (lnet_expand1tb(&pending, str, sep, sep2,
-						   parsed, (int)(enditem - parsed)) != 0)
+				if (lnet_expand1tb(
+				     &pending, str, sep, sep2,
+				     parsed,
+				     (int)(enditem - parsed)) != 0) {
 					goto failed;
+				}
 
 				continue;
 			}
@@ -632,7 +636,7 @@ lnet_parse_route(char *str, int *im_a_router)
 	struct list_head       *tmp2;
 	__u32	     net;
 	lnet_nid_t	nid;
-	lnet_text_buf_t  *ltb;
+	struct lnet_text_buf_t  *ltb;
 	int	       rc;
 	char	     *sep;
 	char	     *token = str;
@@ -688,7 +692,8 @@ lnet_parse_route(char *str, int *im_a_router)
 		list_add_tail(tmp1, tmp2);
 
 		while (tmp1 != tmp2) {
-			ltb = list_entry(tmp1, lnet_text_buf_t, ltb_list);
+			ltb = list_entry(tmp1, struct lnet_text_buf_t,
+					 ltb_list);
 
 			rc = lnet_str2tbs_expand(tmp1->next, ltb->ltb_text);
 			if (rc < 0)
@@ -728,12 +733,13 @@ lnet_parse_route(char *str, int *im_a_router)
 	LASSERT(!list_empty(&gateways));
 
 	list_for_each(tmp1, &nets) {
-		ltb = list_entry(tmp1, lnet_text_buf_t, ltb_list);
+		ltb = list_entry(tmp1, struct lnet_text_buf_t, ltb_list);
 		net = libcfs_str2net(ltb->ltb_text);
 		LASSERT(net != LNET_NIDNET(LNET_NID_ANY));
 
 		list_for_each(tmp2, &gateways) {
-			ltb = list_entry(tmp2, lnet_text_buf_t, ltb_list);
+			ltb = list_entry(tmp2, struct lnet_text_buf_t,
+					 ltb_list);
 			nid = libcfs_str2nid(ltb->ltb_text);
 			LASSERT(nid != LNET_NID_ANY);
 
@@ -766,10 +772,10 @@ lnet_parse_route(char *str, int *im_a_router)
 static int
 lnet_parse_route_tbs(struct list_head *tbs, int *im_a_router)
 {
-	lnet_text_buf_t   *ltb;
+	struct lnet_text_buf_t   *ltb;
 
 	while (!list_empty(tbs)) {
-		ltb = list_entry(tbs->next, lnet_text_buf_t, ltb_list);
+		ltb = list_entry(tbs->next, struct lnet_text_buf_t, ltb_list);
 
 		if (lnet_parse_route(ltb->ltb_text, im_a_router) < 0) {
 			lnet_free_text_bufs(tbs);
@@ -903,8 +909,8 @@ lnet_splitnets(char *source, struct list_head *nets)
 	int	       offset = 0;
 	int	       offset2;
 	int	       len;
-	lnet_text_buf_t  *tb;
-	lnet_text_buf_t  *tb2;
+	struct lnet_text_buf_t  *tb;
+	struct lnet_text_buf_t  *tb2;
 	struct list_head       *t;
 	char	     *sep;
 	char	     *bracket;
@@ -913,7 +919,7 @@ lnet_splitnets(char *source, struct list_head *nets)
 	LASSERT(!list_empty(nets));
 	LASSERT(nets->next == nets->prev);     /* single entry */
 
-	tb = list_entry(nets->next, lnet_text_buf_t, ltb_list);
+	tb = list_entry(nets->next, struct lnet_text_buf_t, ltb_list);
 
 	for (;;) {
 		sep = strchr(tb->ltb_text, ',');
@@ -949,7 +955,7 @@ lnet_splitnets(char *source, struct list_head *nets)
 		}
 
 		list_for_each(t, nets) {
-			tb2 = list_entry(t, lnet_text_buf_t, ltb_list);
+			tb2 = list_entry(t, struct lnet_text_buf_t, ltb_list);
 
 			if (tb2 == tb)
 				continue;
@@ -988,8 +994,8 @@ lnet_match_networks(char **networksp, char *ip2nets, __u32 *ipaddrs, int nip)
 	struct list_head	  current_nets;
 	struct list_head	 *t;
 	struct list_head	 *t2;
-	lnet_text_buf_t    *tb;
-	lnet_text_buf_t    *tb2;
+	struct lnet_text_buf_t    *tb;
+	struct lnet_text_buf_t    *tb2;
 	__u32	       net1;
 	__u32	       net2;
 	int		 len;
@@ -1012,7 +1018,7 @@ lnet_match_networks(char **networksp, char *ip2nets, __u32 *ipaddrs, int nip)
 	rc = 0;
 
 	while (!list_empty(&raw_entries)) {
-		tb = list_entry(raw_entries.next, lnet_text_buf_t,
+		tb = list_entry(raw_entries.next, struct lnet_text_buf_t,
 				    ltb_list);
 
 		strncpy(source, tb->ltb_text, sizeof(source)-1);
@@ -1039,12 +1045,12 @@ lnet_match_networks(char **networksp, char *ip2nets, __u32 *ipaddrs, int nip)
 
 		dup = 0;
 		list_for_each(t, &current_nets) {
-			tb = list_entry(t, lnet_text_buf_t, ltb_list);
+			tb = list_entry(t, struct lnet_text_buf_t, ltb_list);
 			net1 = lnet_netspec2net(tb->ltb_text);
 			LASSERT(net1 != LNET_NIDNET(LNET_NID_ANY));
 
 			list_for_each(t2, &matched_nets) {
-				tb2 = list_entry(t2, lnet_text_buf_t,
+				tb2 = list_entry(t2, struct lnet_text_buf_t,
 						     ltb_list);
 				net2 = lnet_netspec2net(tb2->ltb_text);
 				LASSERT(net2 != LNET_NIDNET(LNET_NID_ANY));
@@ -1065,7 +1071,7 @@ lnet_match_networks(char **networksp, char *ip2nets, __u32 *ipaddrs, int nip)
 		}
 
 		list_for_each_safe(t, t2, &current_nets) {
-			tb = list_entry(t, lnet_text_buf_t, ltb_list);
+			tb = list_entry(t, struct lnet_text_buf_t, ltb_list);
 
 			list_del(&tb->ltb_list);
 			list_add_tail(&tb->ltb_list, &matched_nets);
diff --git a/drivers/staging/lustre/lnet/lnet/lib-eq.c b/drivers/staging/lustre/lnet/lnet/lib-eq.c
index 863cc37..5470148 100644
--- a/drivers/staging/lustre/lnet/lnet/lib-eq.c
+++ b/drivers/staging/lustre/lnet/lnet/lib-eq.c
@@ -81,9 +81,8 @@ LNetEQAlloc(unsigned int count, lnet_eq_handler_t callback,
 
 	count = cfs_power2_roundup(count);
 
-	if (callback != LNET_EQ_HANDLER_NONE && count != 0) {
+	if (callback != LNET_EQ_HANDLER_NONE && count != 0)
 		CWARN("EQ callback is guaranteed to get every event, do you still want to set eqcount %d for polling event which will have locking overhead? Please contact with developer to confirm\n", count);
-	}
 
 	/* count can be 0 if only need callback, we can eliminate
 	 * overhead of enqueue event */
diff --git a/drivers/staging/lustre/lnet/lnet/lib-md.c b/drivers/staging/lustre/lnet/lnet/lib-md.c
index 3225c06..89d660f 100644
--- a/drivers/staging/lustre/lnet/lnet/lib-md.c
+++ b/drivers/staging/lustre/lnet/lnet/lib-md.c
@@ -123,7 +123,7 @@ lnet_md_build(lnet_libmd_t *lmd, lnet_md_t *umd, int unlink)
 
 		lmd->md_length = total_length;
 
-		if ((umd->options & LNET_MD_MAX_SIZE) != 0 && /* max size used */
+		if ((umd->options & LNET_MD_MAX_SIZE) != 0 && /* use max size */
 		    (umd->max_size < 0 ||
 		     umd->max_size > total_length)) /* illegal max_size */
 			return -EINVAL;
diff --git a/drivers/staging/lustre/lnet/lnet/lib-move.c b/drivers/staging/lustre/lnet/lnet/lib-move.c
index 0f53c76..c2fb70e 100644
--- a/drivers/staging/lustre/lnet/lnet/lib-move.c
+++ b/drivers/staging/lustre/lnet/lnet/lib-move.c
@@ -1530,7 +1530,7 @@ lnet_parse_reply(lnet_ni_t *ni, lnet_msg_t *msg)
 	LASSERT(md->md_offset == 0);
 
 	rlength = hdr->payload_length;
-	mlength = min_t(int, rlength, md->md_length);
+	mlength = min_t(uint, rlength, md->md_length);
 
 	if (mlength < rlength &&
 	    (md->md_options & LNET_MD_TRUNCATE) == 0) {
diff --git a/drivers/staging/lustre/lnet/lnet/peer.c b/drivers/staging/lustre/lnet/lnet/peer.c
index c93ae85..45b5742 100644
--- a/drivers/staging/lustre/lnet/lnet/peer.c
+++ b/drivers/staging/lustre/lnet/lnet/peer.c
@@ -87,7 +87,7 @@ lnet_peer_tables_destroy(void)
 
 	cfs_percpt_for_each(ptable, i, the_lnet.ln_peer_tables) {
 		hash = ptable->pt_hash;
-		if (hash == NULL) /* not intialized */
+		if (hash == NULL) /* not initialized */
 			break;
 
 		LASSERT(list_empty(&ptable->pt_deathrow));
@@ -132,7 +132,7 @@ lnet_peer_tables_cleanup(void)
 	}
 
 	cfs_percpt_for_each(ptable, i, the_lnet.ln_peer_tables) {
-		LIST_HEAD	(deathrow);
+		LIST_HEAD(deathrow);
 		lnet_peer_t	*lp;
 
 		lnet_net_lock(i);
diff --git a/drivers/staging/lustre/lnet/lnet/router.c b/drivers/staging/lustre/lnet/lnet/router.c
index 52ec0ab..8510bae 100644
--- a/drivers/staging/lustre/lnet/lnet/router.c
+++ b/drivers/staging/lustre/lnet/lnet/router.c
@@ -107,7 +107,8 @@ lnet_peers_start_down(void)
 }
 
 void
-lnet_notify_locked(lnet_peer_t *lp, int notifylnd, int alive, unsigned long when)
+lnet_notify_locked(lnet_peer_t *lp, int notifylnd, int alive,
+		   unsigned long when)
 {
 	if (time_before(when, lp->lp_timestamp)) { /* out of date information */
 		CDEBUG(D_NET, "Out of date\n");
@@ -225,7 +226,7 @@ lnet_rtr_decref_locked(lnet_peer_t *lp)
 }
 
 lnet_remotenet_t *
-lnet_find_net_locked (__u32 net)
+lnet_find_net_locked(__u32 net)
 {
 	lnet_remotenet_t	*rnet;
 	struct list_head		*tmp;
@@ -269,12 +270,11 @@ static void lnet_shuffle_seed(void)
 	do_gettimeofday(&tv);
 	cfs_srand(tv.tv_sec ^ seed[0], tv.tv_usec ^ seed[1]);
 	seeded = 1;
-	return;
 }
 
 /* NB expects LNET_LOCK held */
 static void
-lnet_add_route_to_rnet (lnet_remotenet_t *rnet, lnet_route_t *route)
+lnet_add_route_to_rnet(lnet_remotenet_t *rnet, lnet_route_t *route)
 {
 	unsigned int      len = 0;
 	unsigned int      offset = 0;
@@ -282,13 +282,13 @@ lnet_add_route_to_rnet (lnet_remotenet_t *rnet, lnet_route_t *route)
 
 	lnet_shuffle_seed();
 
-	list_for_each (e, &rnet->lrn_routes) {
+	list_for_each(e, &rnet->lrn_routes) {
 		len++;
 	}
 
 	/* len+1 positions to add a new entry, also prevents division by 0 */
 	offset = cfs_rand() % (len + 1);
-	list_for_each (e, &rnet->lrn_routes) {
+	list_for_each(e, &rnet->lrn_routes) {
 		if (offset == 0)
 			break;
 		offset--;
@@ -354,17 +354,16 @@ lnet_add_route(__u32 net, unsigned int hops, lnet_nid_t gateway,
 		LIBCFS_FREE(route, sizeof(*route));
 		LIBCFS_FREE(rnet, sizeof(*rnet));
 
-		if (rc == -EHOSTUNREACH) { /* gateway is not on a local net */
+		if (rc == -EHOSTUNREACH) /* gateway is not on a local net */
 			return 0;	/* ignore the route entry */
-		} else {
-			CERROR("Error %d creating route %s %d %s\n", rc,
-			       libcfs_net2str(net), hops,
-			       libcfs_nid2str(gateway));
-		}
+		CERROR("Error %d creating route %s %d %s\n", rc,
+		       libcfs_net2str(net), hops,
+		       libcfs_nid2str(gateway));
+
 		return rc;
 	}
 
-	LASSERT (!the_lnet.ln_shutdown);
+	LASSERT(!the_lnet.ln_shutdown);
 
 	rnet2 = lnet_find_net_locked(net);
 	if (rnet2 == NULL) {
@@ -375,7 +374,7 @@ lnet_add_route(__u32 net, unsigned int hops, lnet_nid_t gateway,
 
 	/* Search for a duplicate route (it's a NOOP if it is) */
 	add_route = 1;
-	list_for_each (e, &rnet2->lrn_routes) {
+	list_for_each(e, &rnet2->lrn_routes) {
 		lnet_route_t *route2 = list_entry(e, lnet_route_t, lr_list);
 
 		if (route2->lr_gateway == route->lr_gateway) {
@@ -384,7 +383,7 @@ lnet_add_route(__u32 net, unsigned int hops, lnet_nid_t gateway,
 		}
 
 		/* our lookups must be true */
-		LASSERT (route2->lr_gateway->lp_nid != gateway);
+		LASSERT(route2->lr_gateway->lp_nid != gateway);
 	}
 
 	if (add_route) {
@@ -546,7 +545,7 @@ lnet_del_route(__u32 net, lnet_nid_t gw_nid)
 }
 
 void
-lnet_destroy_routes (void)
+lnet_destroy_routes(void)
 {
 	lnet_del_route(LNET_NIDNET(LNET_NID_ANY), LNET_NID_ANY);
 }
@@ -606,7 +605,6 @@ lnet_swap_pinginfo(lnet_ping_info_t *info)
 		__swab64s(&stat->ns_nid);
 		__swab32s(&stat->ns_status);
 	}
-	return;
 }
 
 /**
@@ -758,13 +756,13 @@ lnet_wait_known_routerstate(void)
 	struct list_head	  *entry;
 	int		  all_known;
 
-	LASSERT (the_lnet.ln_rc_state == LNET_RC_STATE_RUNNING);
+	LASSERT(the_lnet.ln_rc_state == LNET_RC_STATE_RUNNING);
 
 	for (;;) {
 		int	cpt = lnet_net_lock_current();
 
 		all_known = 1;
-		list_for_each (entry, &the_lnet.ln_routers) {
+		list_for_each(entry, &the_lnet.ln_routers) {
 			rtr = list_entry(entry, lnet_peer_t, lp_rtr_list);
 
 			if (rtr->lp_alive_count == 0) {
@@ -886,7 +884,7 @@ lnet_create_rc_data_locked(lnet_peer_t *gateway)
 	}
 	rcd->rcd_pinginfo = pi;
 
-	LASSERT (!LNetHandleIsInvalid(the_lnet.ln_rc_eqh));
+	LASSERT(!LNetHandleIsInvalid(the_lnet.ln_rc_eqh));
 	rc = LNetMDBind((lnet_md_t){.start     = pi,
 				    .user_ptr  = rcd,
 				    .length    = LNET_PINGINFO_SIZE,
@@ -929,7 +927,7 @@ lnet_create_rc_data_locked(lnet_peer_t *gateway)
 }
 
 static int
-lnet_router_check_interval (lnet_peer_t *rtr)
+lnet_router_check_interval(lnet_peer_t *rtr)
 {
 	int secs;
 
@@ -942,7 +940,7 @@ lnet_router_check_interval (lnet_peer_t *rtr)
 }
 
 static void
-lnet_ping_router_locked (lnet_peer_t *rtr)
+lnet_ping_router_locked(lnet_peer_t *rtr)
 {
 	lnet_rc_data_t *rcd = NULL;
 	unsigned long      now = cfs_time_current();
@@ -1010,7 +1008,6 @@ lnet_ping_router_locked (lnet_peer_t *rtr)
 	}
 
 	lnet_peer_decref_locked(rtr);
-	return;
 }
 
 int
@@ -1019,7 +1016,7 @@ lnet_router_checker_start(void)
 	int	  rc;
 	int	  eqsz;
 
-	LASSERT (the_lnet.ln_rc_state == LNET_RC_STATE_SHUTDOWN);
+	LASSERT(the_lnet.ln_rc_state == LNET_RC_STATE_SHUTDOWN);
 
 	if (check_routers_before_use &&
 	    dead_router_check_interval <= 0) {
@@ -1067,14 +1064,14 @@ lnet_router_checker_start(void)
 }
 
 void
-lnet_router_checker_stop (void)
+lnet_router_checker_stop(void)
 {
 	int rc;
 
 	if (the_lnet.ln_rc_state == LNET_RC_STATE_SHUTDOWN)
 		return;
 
-	LASSERT (the_lnet.ln_rc_state == LNET_RC_STATE_RUNNING);
+	LASSERT(the_lnet.ln_rc_state == LNET_RC_STATE_RUNNING);
 	the_lnet.ln_rc_state = LNET_RC_STATE_STOPPING;
 
 	/* block until event callback signals exit */
@@ -1082,8 +1079,7 @@ lnet_router_checker_stop (void)
 	LASSERT(the_lnet.ln_rc_state == LNET_RC_STATE_SHUTDOWN);
 
 	rc = LNetEQFree(the_lnet.ln_rc_eqh);
-	LASSERT (rc == 0);
-	return;
+	LASSERT(rc == 0);
 }
 
 static void
@@ -1178,7 +1174,7 @@ lnet_router_checker(void *arg)
 
 	cfs_block_allsigs();
 
-	LASSERT (the_lnet.ln_rc_state == LNET_RC_STATE_RUNNING);
+	LASSERT(the_lnet.ln_rc_state == LNET_RC_STATE_RUNNING);
 
 	while (the_lnet.ln_rc_state == LNET_RC_STATE_RUNNING) {
 		__u64	version;
@@ -1291,11 +1287,11 @@ lnet_rtrpool_free_bufs(lnet_rtrbufpool_t *rbp)
 	if (rbp->rbp_nbuffers == 0) /* not initialized or already freed */
 		return;
 
-	LASSERT (list_empty(&rbp->rbp_msgs));
-	LASSERT (rbp->rbp_credits == rbp->rbp_nbuffers);
+	LASSERT(list_empty(&rbp->rbp_msgs));
+	LASSERT(rbp->rbp_credits == rbp->rbp_nbuffers);
 
 	while (!list_empty(&rbp->rbp_bufs)) {
-		LASSERT (rbp->rbp_credits > 0);
+		LASSERT(rbp->rbp_credits > 0);
 
 		rb = list_entry(rbp->rbp_bufs.next,
 				    lnet_rtrbuf_t, rb_list);
@@ -1304,8 +1300,8 @@ lnet_rtrpool_free_bufs(lnet_rtrbufpool_t *rbp)
 		nbuffers++;
 	}
 
-	LASSERT (rbp->rbp_nbuffers == nbuffers);
-	LASSERT (rbp->rbp_credits == nbuffers);
+	LASSERT(rbp->rbp_nbuffers == nbuffers);
+	LASSERT(rbp->rbp_credits == nbuffers);
 
 	rbp->rbp_nbuffers = rbp->rbp_credits = 0;
 }
@@ -1317,7 +1313,7 @@ lnet_rtrpool_alloc_bufs(lnet_rtrbufpool_t *rbp, int nbufs, int cpt)
 	int	    i;
 
 	if (rbp->rbp_nbuffers != 0) {
-		LASSERT (rbp->rbp_nbuffers == nbufs);
+		LASSERT(rbp->rbp_nbuffers == nbufs);
 		return 0;
 	}
 
@@ -1337,10 +1333,10 @@ lnet_rtrpool_alloc_bufs(lnet_rtrbufpool_t *rbp, int nbufs, int cpt)
 
 		/* No allocation "under fire" */
 		/* Otherwise we'd need code to schedule blocked msgs etc */
-		LASSERT (!the_lnet.ln_routing);
+		LASSERT(!the_lnet.ln_routing);
 	}
 
-	LASSERT (rbp->rbp_credits == nbufs);
+	LASSERT(rbp->rbp_credits == nbufs);
 	return 0;
 }
 
@@ -1435,7 +1431,7 @@ int
 lnet_rtrpools_alloc(int im_a_router)
 {
 	lnet_rtrbufpool_t *rtrp;
-	int	large_pages = (LNET_MTU + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
+	int	large_pages;
 	int	small_pages = 1;
 	int	nrb_tiny;
 	int	nrb_small;
@@ -1443,6 +1439,8 @@ lnet_rtrpools_alloc(int im_a_router)
 	int	rc;
 	int	i;
 
+	large_pages = (LNET_MTU + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
+
 	if (!strcmp(forwarding, "")) {
 		/* not set either way */
 		if (!im_a_router)
@@ -1513,16 +1511,16 @@ lnet_notify(lnet_ni_t *ni, lnet_nid_t nid, int alive, unsigned long when)
 	unsigned long		now = cfs_time_current();
 	int			cpt = lnet_cpt_of_nid(nid);
 
-	LASSERT (!in_interrupt ());
+	LASSERT(!in_interrupt ());
 
-	CDEBUG (D_NET, "%s notifying %s: %s\n",
+	CDEBUG(D_NET, "%s notifying %s: %s\n",
 		(ni == NULL) ? "userspace" : libcfs_nid2str(ni->ni_nid),
 		libcfs_nid2str(nid),
 		alive ? "up" : "down");
 
 	if (ni != NULL &&
 	    LNET_NIDNET(ni->ni_nid) != LNET_NIDNET(nid)) {
-		CWARN ("Ignoring notification of %s %s by %s (different net)\n",
+		CWARN("Ignoring notification of %s %s by %s (different net)\n",
 			libcfs_nid2str(nid), alive ? "birth" : "death",
 			libcfs_nid2str(ni->ni_nid));
 		return -EINVAL;
@@ -1577,21 +1575,20 @@ lnet_notify(lnet_ni_t *ni, lnet_nid_t nid, int alive, unsigned long when)
 EXPORT_SYMBOL(lnet_notify);
 
 void
-lnet_get_tunables (void)
+lnet_get_tunables(void)
 {
-	return;
 }
 
 #else
 
 int
-lnet_notify (lnet_ni_t *ni, lnet_nid_t nid, int alive, unsigned long when)
+lnet_notify(lnet_ni_t *ni, lnet_nid_t nid, int alive, unsigned long when)
 {
 	return -EOPNOTSUPP;
 }
 
 void
-lnet_router_checker (void)
+lnet_router_checker(void)
 {
 	static time_t last;
 	static int    running;
@@ -1643,7 +1640,7 @@ lnet_router_checker (void)
 			abort();
 		}
 
-		LASSERT (rc == 1);
+		LASSERT(rc == 1);
 
 		lnet_router_checker_event(&ev);
 	}
@@ -1655,26 +1652,25 @@ lnet_router_checker (void)
 		return;
 	}
 
-	LASSERT (the_lnet.ln_rc_state == LNET_RC_STATE_RUNNING);
+	LASSERT(the_lnet.ln_rc_state == LNET_RC_STATE_RUNNING);
 
 	lnet_net_lock(0);
 
 	version = the_lnet.ln_routers_version;
-	list_for_each_entry (rtr, &the_lnet.ln_routers, lp_rtr_list) {
+	list_for_each_entry(rtr, &the_lnet.ln_routers, lp_rtr_list) {
 		lnet_ping_router_locked(rtr);
-		LASSERT (version == the_lnet.ln_routers_version);
+		LASSERT(version == the_lnet.ln_routers_version);
 	}
 
 	lnet_net_unlock(0);
 
 	running = 0; /* lock only needed for the recursion check */
-	return;
 }
 
 /* NB lnet_peers_start_down depends on me,
  * so must be called before any peer creation */
 void
-lnet_get_tunables (void)
+lnet_get_tunables(void)
 {
 	char *s;
 
diff --git a/drivers/staging/lustre/lnet/selftest/brw_test.c b/drivers/staging/lustre/lnet/selftest/brw_test.c
index 463da07..658f458 100644
--- a/drivers/staging/lustre/lnet/selftest/brw_test.c
+++ b/drivers/staging/lustre/lnet/selftest/brw_test.c
@@ -175,7 +175,6 @@ brw_fill_page(struct page *pg, int pattern, __u64 magic)
 	}
 
 	LBUG();
-	return;
 }
 
 static int
diff --git a/drivers/staging/lustre/lnet/selftest/conctl.c b/drivers/staging/lustre/lnet/selftest/conctl.c
index fbff84c..045fe29 100644
--- a/drivers/staging/lustre/lnet/selftest/conctl.c
+++ b/drivers/staging/lustre/lnet/selftest/conctl.c
@@ -203,7 +203,7 @@ lst_group_add_ioctl(lstio_group_add_args_t *args)
 	if (args->lstio_grp_key != console_session.ses_key)
 		return -EACCES;
 
-	if (args->lstio_grp_namep == NULL||
+	if (args->lstio_grp_namep == NULL ||
 	    args->lstio_grp_nmlen <= 0 ||
 	    args->lstio_grp_nmlen > LST_NAME_SIZE)
 		return -EINVAL;
@@ -857,62 +857,62 @@ lstcon_ioctl_entry(unsigned int cmd, struct libcfs_ioctl_data *data)
 	memset(&console_session.ses_trans_stat, 0, sizeof(lstcon_trans_stat_t));
 
 	switch (opc) {
-		case LSTIO_SESSION_NEW:
-			rc = lst_session_new_ioctl((lstio_session_new_args_t *)buf);
-			break;
-		case LSTIO_SESSION_END:
-			rc = lst_session_end_ioctl((lstio_session_end_args_t *)buf);
-			break;
-		case LSTIO_SESSION_INFO:
-			rc = lst_session_info_ioctl((lstio_session_info_args_t *)buf);
-			break;
-		case LSTIO_DEBUG:
-			rc = lst_debug_ioctl((lstio_debug_args_t *)buf);
-			break;
-		case LSTIO_GROUP_ADD:
-			rc = lst_group_add_ioctl((lstio_group_add_args_t *)buf);
-			break;
-		case LSTIO_GROUP_DEL:
-			rc = lst_group_del_ioctl((lstio_group_del_args_t *)buf);
-			break;
-		case LSTIO_GROUP_UPDATE:
-			rc = lst_group_update_ioctl((lstio_group_update_args_t *)buf);
-			break;
-		case LSTIO_NODES_ADD:
-			rc = lst_nodes_add_ioctl((lstio_group_nodes_args_t *)buf);
-			break;
-		case LSTIO_GROUP_LIST:
-			rc = lst_group_list_ioctl((lstio_group_list_args_t *)buf);
-			break;
-		case LSTIO_GROUP_INFO:
-			rc = lst_group_info_ioctl((lstio_group_info_args_t *)buf);
-			break;
-		case LSTIO_BATCH_ADD:
-			rc = lst_batch_add_ioctl((lstio_batch_add_args_t *)buf);
-			break;
-		case LSTIO_BATCH_START:
-			rc = lst_batch_run_ioctl((lstio_batch_run_args_t *)buf);
-			break;
-		case LSTIO_BATCH_STOP:
-			rc = lst_batch_stop_ioctl((lstio_batch_stop_args_t *)buf);
-			break;
-		case LSTIO_BATCH_QUERY:
-			rc = lst_batch_query_ioctl((lstio_batch_query_args_t *)buf);
-			break;
-		case LSTIO_BATCH_LIST:
-			rc = lst_batch_list_ioctl((lstio_batch_list_args_t *)buf);
-			break;
-		case LSTIO_BATCH_INFO:
-			rc = lst_batch_info_ioctl((lstio_batch_info_args_t *)buf);
-			break;
-		case LSTIO_TEST_ADD:
-			rc = lst_test_add_ioctl((lstio_test_args_t *)buf);
-			break;
-		case LSTIO_STAT_QUERY:
-			rc = lst_stat_query_ioctl((lstio_stat_args_t *)buf);
-			break;
-		default:
-			rc = -EINVAL;
+	case LSTIO_SESSION_NEW:
+		rc = lst_session_new_ioctl((lstio_session_new_args_t *)buf);
+		break;
+	case LSTIO_SESSION_END:
+		rc = lst_session_end_ioctl((lstio_session_end_args_t *)buf);
+		break;
+	case LSTIO_SESSION_INFO:
+		rc = lst_session_info_ioctl((lstio_session_info_args_t *)buf);
+		break;
+	case LSTIO_DEBUG:
+		rc = lst_debug_ioctl((lstio_debug_args_t *)buf);
+		break;
+	case LSTIO_GROUP_ADD:
+		rc = lst_group_add_ioctl((lstio_group_add_args_t *)buf);
+		break;
+	case LSTIO_GROUP_DEL:
+		rc = lst_group_del_ioctl((lstio_group_del_args_t *)buf);
+		break;
+	case LSTIO_GROUP_UPDATE:
+		rc = lst_group_update_ioctl((lstio_group_update_args_t *)buf);
+		break;
+	case LSTIO_NODES_ADD:
+		rc = lst_nodes_add_ioctl((lstio_group_nodes_args_t *)buf);
+		break;
+	case LSTIO_GROUP_LIST:
+		rc = lst_group_list_ioctl((lstio_group_list_args_t *)buf);
+		break;
+	case LSTIO_GROUP_INFO:
+		rc = lst_group_info_ioctl((lstio_group_info_args_t *)buf);
+		break;
+	case LSTIO_BATCH_ADD:
+		rc = lst_batch_add_ioctl((lstio_batch_add_args_t *)buf);
+		break;
+	case LSTIO_BATCH_START:
+		rc = lst_batch_run_ioctl((lstio_batch_run_args_t *)buf);
+		break;
+	case LSTIO_BATCH_STOP:
+		rc = lst_batch_stop_ioctl((lstio_batch_stop_args_t *)buf);
+		break;
+	case LSTIO_BATCH_QUERY:
+		rc = lst_batch_query_ioctl((lstio_batch_query_args_t *)buf);
+		break;
+	case LSTIO_BATCH_LIST:
+		rc = lst_batch_list_ioctl((lstio_batch_list_args_t *)buf);
+		break;
+	case LSTIO_BATCH_INFO:
+		rc = lst_batch_info_ioctl((lstio_batch_info_args_t *)buf);
+		break;
+	case LSTIO_TEST_ADD:
+		rc = lst_test_add_ioctl((lstio_test_args_t *)buf);
+		break;
+	case LSTIO_STAT_QUERY:
+		rc = lst_stat_query_ioctl((lstio_stat_args_t *)buf);
+		break;
+	default:
+		rc = -EINVAL;
 	}
 
 	if (copy_to_user(data->ioc_pbuf2, &console_session.ses_trans_stat,
diff --git a/drivers/staging/lustre/lnet/selftest/console.c b/drivers/staging/lustre/lnet/selftest/console.c
index 1e0afc2..2b5f53c 100644
--- a/drivers/staging/lustre/lnet/selftest/console.c
+++ b/drivers/staging/lustre/lnet/selftest/console.c
@@ -64,7 +64,7 @@ lstcon_session_t	console_session;
 static void
 lstcon_node_get(lstcon_node_t *nd)
 {
-	LASSERT (nd->nd_ref >= 1);
+	LASSERT(nd->nd_ref >= 1);
 
 	nd->nd_ref++;
 }
@@ -75,7 +75,7 @@ lstcon_node_find(lnet_process_id_t id, lstcon_node_t **ndpp, int create)
 	lstcon_ndlink_t *ndl;
 	unsigned int     idx = LNET_NIDADDR(id.nid) % LST_GLOBAL_HASHSIZE;
 
-	LASSERT (id.nid != LNET_NID_ANY);
+	LASSERT(id.nid != LNET_NID_ANY);
 
 	list_for_each_entry(ndl, &console_session.ses_ndl_hash[idx], ndl_hlink) {
 		if (ndl->ndl_node->nd_id.nid != id.nid ||
@@ -119,15 +119,15 @@ lstcon_node_put(lstcon_node_t *nd)
 {
 	lstcon_ndlink_t  *ndl;
 
-	LASSERT (nd->nd_ref > 0);
+	LASSERT(nd->nd_ref > 0);
 
 	if (--nd->nd_ref > 0)
 		return;
 
 	ndl = (lstcon_ndlink_t *)(nd + 1);
 
-	LASSERT (!list_empty(&ndl->ndl_link));
-	LASSERT (!list_empty(&ndl->ndl_hlink));
+	LASSERT(!list_empty(&ndl->ndl_link));
+	LASSERT(!list_empty(&ndl->ndl_hlink));
 
 	/* remove from session */
 	list_del(&ndl->ndl_link);
@@ -184,8 +184,8 @@ lstcon_ndlink_find(struct list_head *hash,
 static void
 lstcon_ndlink_release(lstcon_ndlink_t *ndl)
 {
-	LASSERT (list_empty(&ndl->ndl_link));
-	LASSERT (!list_empty(&ndl->ndl_hlink));
+	LASSERT(list_empty(&ndl->ndl_link));
+	LASSERT(!list_empty(&ndl->ndl_hlink));
 
 	list_del(&ndl->ndl_hlink); /* delete from hash */
 	lstcon_node_put(ndl->ndl_node);
@@ -254,7 +254,7 @@ lstcon_group_decref(lstcon_group_t *grp)
 	lstcon_group_drain(grp, 0);
 
 	for (i = 0; i < LST_NODE_HASHSIZE; i++) {
-		LASSERT (list_empty(&grp->grp_ndl_hash[i]));
+		LASSERT(list_empty(&grp->grp_ndl_hash[i]));
 	}
 
 	LIBCFS_FREE(grp, offsetof(lstcon_group_t,
@@ -552,8 +552,8 @@ lstcon_nodes_add(char *name, int count, lnet_process_id_t *ids_up,
 	lstcon_group_t	 *grp;
 	int		     rc;
 
-	LASSERT (count > 0);
-	LASSERT (ids_up != NULL);
+	LASSERT(count > 0);
+	LASSERT(ids_up != NULL);
 
 	rc = lstcon_group_find(name, &grp);
 	if (rc != 0) {
@@ -726,8 +726,8 @@ lstcon_group_list(int index, int len, char *name_up)
 {
 	lstcon_group_t *grp;
 
-	LASSERT (index >= 0);
-	LASSERT (name_up != NULL);
+	LASSERT(index >= 0);
+	LASSERT(name_up != NULL);
 
 	list_for_each_entry(grp, &console_session.ses_grp_list, grp_link) {
 		if (index-- == 0) {
@@ -748,10 +748,10 @@ lstcon_nodes_getent(struct list_head *head, int *index_p,
 	int	       count = 0;
 	int	       index = 0;
 
-	LASSERT (index_p != NULL && count_p != NULL);
-	LASSERT (dents_up != NULL);
-	LASSERT (*index_p >= 0);
-	LASSERT (*count_p > 0);
+	LASSERT(index_p != NULL && count_p != NULL);
+	LASSERT(dents_up != NULL);
+	LASSERT(*index_p >= 0);
+	LASSERT(*count_p > 0);
 
 	list_for_each_entry(ndl, head, ndl_link) {
 		if (index++ < *index_p)
@@ -905,8 +905,8 @@ lstcon_batch_list(int index, int len, char *name_up)
 {
 	lstcon_batch_t    *bat;
 
-	LASSERT (name_up != NULL);
-	LASSERT (index >= 0);
+	LASSERT(name_up != NULL);
+	LASSERT(index >= 0);
 
 	list_for_each_entry(bat, &console_session.ses_bat_list, bat_link) {
 		if (index-- == 0) {
@@ -1093,7 +1093,7 @@ lstcon_batch_destroy(lstcon_batch_t *bat)
 	while (!list_empty(&bat->bat_test_list)) {
 		test = list_entry(bat->bat_test_list.next,
 				      lstcon_test_t, tes_link);
-		LASSERT (list_empty(&test->tes_trans_list));
+		LASSERT(list_empty(&test->tes_trans_list));
 
 		list_del(&test->tes_link);
 
@@ -1104,7 +1104,7 @@ lstcon_batch_destroy(lstcon_batch_t *bat)
 					   tes_param[test->tes_paramlen]));
 	}
 
-	LASSERT (list_empty(&bat->bat_trans_list));
+	LASSERT(list_empty(&bat->bat_trans_list));
 
 	while (!list_empty(&bat->bat_cli_list)) {
 		ndl = list_entry(bat->bat_cli_list.next,
@@ -1123,8 +1123,8 @@ lstcon_batch_destroy(lstcon_batch_t *bat)
 	}
 
 	for (i = 0; i < LST_NODE_HASHSIZE; i++) {
-		LASSERT (list_empty(&bat->bat_cli_hash[i]));
-		LASSERT (list_empty(&bat->bat_srv_hash[i]));
+		LASSERT(list_empty(&bat->bat_cli_hash[i]));
+		LASSERT(list_empty(&bat->bat_srv_hash[i]));
 	}
 
 	LIBCFS_FREE(bat->bat_cli_hash,
@@ -1144,10 +1144,10 @@ lstcon_testrpc_condition(int transop, lstcon_node_t *nd, void *arg)
 	struct list_head       *head;
 
 	test = (lstcon_test_t *)arg;
-	LASSERT (test != NULL);
+	LASSERT(test != NULL);
 
 	batch = test->tes_batch;
-	LASSERT (batch != NULL);
+	LASSERT(batch != NULL);
 
 	if (test->tes_oneside &&
 	    transop == LST_TRANS_TSBSRVADD)
@@ -1161,13 +1161,13 @@ lstcon_testrpc_condition(int transop, lstcon_node_t *nd, void *arg)
 		head = &batch->bat_cli_list;
 
 	} else {
-		LASSERT (transop == LST_TRANS_TSBSRVADD);
+		LASSERT(transop == LST_TRANS_TSBSRVADD);
 
 		hash = batch->bat_srv_hash;
 		head = &batch->bat_srv_list;
 	}
 
-	LASSERT (nd->nd_id.nid != LNET_NID_ANY);
+	LASSERT(nd->nd_id.nid != LNET_NID_ANY);
 
 	if (lstcon_ndlink_find(hash, nd->nd_id, &ndl, 1) != 0)
 		return -ENOMEM;
@@ -1186,8 +1186,8 @@ lstcon_test_nodes_add(lstcon_test_t *test, struct list_head *result_up)
 	int		     transop;
 	int		     rc;
 
-	LASSERT (test->tes_src_grp != NULL);
-	LASSERT (test->tes_dst_grp != NULL);
+	LASSERT(test->tes_src_grp != NULL);
+	LASSERT(test->tes_dst_grp != NULL);
 
 	transop = LST_TRANS_TSBSRVADD;
 	grp  = test->tes_dst_grp;
@@ -1382,7 +1382,7 @@ lstcon_tsbrpc_readent(int transop, srpc_msg_t *msg,
 {
 	srpc_batch_reply_t *rep = &msg->msg_body.bat_reply;
 
-	LASSERT (transop == LST_TRANS_TSBCLIQRY ||
+	LASSERT(transop == LST_TRANS_TSBCLIQRY ||
 		 transop == LST_TRANS_TSBSRVQRY);
 
 	/* positive errno, framework error code */
@@ -1691,7 +1691,7 @@ lstcon_new_session_id(lst_sid_t *sid)
 {
 	lnet_process_id_t      id;
 
-	LASSERT (console_session.ses_state == LST_SESSION_NONE);
+	LASSERT(console_session.ses_state == LST_SESSION_NONE);
 
 	LNetGetId(1, &id);
 	sid->ses_nid   = id.nid;
@@ -1806,7 +1806,7 @@ lstcon_session_end(void)
 	lstcon_batch_t     *bat;
 	int		 rc = 0;
 
-	LASSERT (console_session.ses_state == LST_SESSION_ACTIVE);
+	LASSERT(console_session.ses_state == LST_SESSION_ACTIVE);
 
 	rc = lstcon_rpc_trans_ndlist(&console_session.ses_ndl_list,
 				     NULL, LST_TRANS_SESEND, NULL,
@@ -1846,13 +1846,13 @@ lstcon_session_end(void)
 	while (!list_empty(&console_session.ses_grp_list)) {
 		grp = list_entry(console_session.ses_grp_list.next,
 				     lstcon_group_t, grp_link);
-		LASSERT (grp->grp_ref == 1);
+		LASSERT(grp->grp_ref == 1);
 
 		lstcon_group_put(grp);
 	}
 
 	/* all nodes should be released */
-	LASSERT (list_empty(&console_session.ses_ndl_list));
+	LASSERT(list_empty(&console_session.ses_ndl_list));
 
 	console_session.ses_shutdown = 0;
 	console_session.ses_expired  = 0;
@@ -1892,7 +1892,7 @@ lstcon_session_feats_check(unsigned feats)
 }
 
 static int
-lstcon_acceptor_handle (srpc_server_rpc_t *rpc)
+lstcon_acceptor_handle(srpc_server_rpc_t *rpc)
 {
 	srpc_msg_t	*rep  = &rpc->srpc_replymsg;
 	srpc_msg_t	*req  = &rpc->srpc_reqstbuf->buf_msg;
@@ -2026,7 +2026,7 @@ lstcon_console_init(void)
 	lstcon_init_acceptor_service();
 
 	rc = srpc_add_service(&lstcon_acceptor_service);
-	LASSERT (rc != -EBUSY);
+	LASSERT(rc != -EBUSY);
 	if (rc != 0) {
 		LIBCFS_FREE(console_session.ses_ndl_hash,
 			    sizeof(struct list_head) * LST_GLOBAL_HASHSIZE);
@@ -2078,13 +2078,13 @@ lstcon_console_fini(void)
 
 	mutex_unlock(&console_session.ses_mutex);
 
-	LASSERT (list_empty(&console_session.ses_ndl_list));
-	LASSERT (list_empty(&console_session.ses_grp_list));
-	LASSERT (list_empty(&console_session.ses_bat_list));
-	LASSERT (list_empty(&console_session.ses_trans_list));
+	LASSERT(list_empty(&console_session.ses_ndl_list));
+	LASSERT(list_empty(&console_session.ses_grp_list));
+	LASSERT(list_empty(&console_session.ses_bat_list));
+	LASSERT(list_empty(&console_session.ses_trans_list));
 
 	for (i = 0; i < LST_NODE_HASHSIZE; i++) {
-		LASSERT (list_empty(&console_session.ses_ndl_hash[i]));
+		LASSERT(list_empty(&console_session.ses_ndl_hash[i]));
 	}
 
 	LIBCFS_FREE(console_session.ses_ndl_hash,
diff --git a/drivers/staging/lustre/lnet/selftest/console.h b/drivers/staging/lustre/lnet/selftest/console.h
index f960174..e41ca89 100644
--- a/drivers/staging/lustre/lnet/selftest/console.h
+++ b/drivers/staging/lustre/lnet/selftest/console.h
@@ -182,6 +182,9 @@ lstcon_id2hash (lnet_process_id_t id, struct list_head *hash)
 	return &hash[idx];
 }
 
+int lstcon_console_init(void);
+int lstcon_ioctl_entry(unsigned int cmd, struct libcfs_ioctl_data *data);
+int lstcon_console_fini(void);
 extern int lstcon_session_match(lst_sid_t sid);
 extern int lstcon_session_new(char *name, int key, unsigned version,
 			      int timeout, int flags, lst_sid_t *sid_up);
diff --git a/drivers/staging/lustre/lnet/selftest/framework.c b/drivers/staging/lustre/lnet/selftest/framework.c
index 5709148..a93a90d 100644
--- a/drivers/staging/lustre/lnet/selftest/framework.c
+++ b/drivers/staging/lustre/lnet/selftest/framework.c
@@ -115,18 +115,18 @@ static struct smoketest_framework {
 } sfw_data;
 
 /* forward ref's */
-int sfw_stop_batch (sfw_batch_t *tsb, int force);
-void sfw_destroy_session (sfw_session_t *sn);
+int sfw_stop_batch(sfw_batch_t *tsb, int force);
+void sfw_destroy_session(sfw_session_t *sn);
 
 static inline sfw_test_case_t *
 sfw_find_test_case(int id)
 {
 	sfw_test_case_t *tsc;
 
-	LASSERT (id <= SRPC_SERVICE_MAX_ID);
-	LASSERT (id > SRPC_FRAMEWORK_SERVICE_MAX_ID);
+	LASSERT(id <= SRPC_SERVICE_MAX_ID);
+	LASSERT(id > SRPC_FRAMEWORK_SERVICE_MAX_ID);
 
-	list_for_each_entry (tsc, &sfw_data.fw_tests, tsc_list) {
+	list_for_each_entry(tsc, &sfw_data.fw_tests, tsc_list) {
 		if (tsc->tsc_srv_service->sv_id == id)
 			return tsc;
 	}
@@ -135,12 +135,12 @@ sfw_find_test_case(int id)
 }
 
 static int
-sfw_register_test (srpc_service_t *service, sfw_test_client_ops_t *cliops)
+sfw_register_test(srpc_service_t *service, sfw_test_client_ops_t *cliops)
 {
 	sfw_test_case_t *tsc;
 
 	if (sfw_find_test_case(service->sv_id) != NULL) {
-		CERROR ("Failed to register test %s (%d)\n",
+		CERROR("Failed to register test %s (%d)\n",
 			service->sv_name, service->sv_id);
 		return -EEXIST;
 	}
@@ -157,17 +157,17 @@ sfw_register_test (srpc_service_t *service, sfw_test_client_ops_t *cliops)
 }
 
 static void
-sfw_add_session_timer (void)
+sfw_add_session_timer(void)
 {
 	sfw_session_t *sn = sfw_data.fw_session;
 	stt_timer_t   *timer = &sn->sn_timer;
 
-	LASSERT (!sfw_data.fw_shuttingdown);
+	LASSERT(!sfw_data.fw_shuttingdown);
 
 	if (sn == NULL || sn->sn_timeout == 0)
 		return;
 
-	LASSERT (!sn->sn_timer_active);
+	LASSERT(!sn->sn_timer_active);
 
 	sn->sn_timer_active = 1;
 	timer->stt_expires = cfs_time_add(sn->sn_timeout,
@@ -177,14 +177,14 @@ sfw_add_session_timer (void)
 }
 
 static int
-sfw_del_session_timer (void)
+sfw_del_session_timer(void)
 {
 	sfw_session_t *sn = sfw_data.fw_session;
 
 	if (sn == NULL || !sn->sn_timer_active)
 		return 0;
 
-	LASSERT (sn->sn_timeout != 0);
+	LASSERT(sn->sn_timeout != 0);
 
 	if (stt_del_timer(&sn->sn_timer)) { /* timer defused */
 		sn->sn_timer_active = 0;
@@ -195,7 +195,7 @@ sfw_del_session_timer (void)
 }
 
 static void
-sfw_deactivate_session (void)
+sfw_deactivate_session(void)
 	__must_hold(&sfw_data.fw_lock)
 {
 	sfw_session_t *sn = sfw_data.fw_session;
@@ -205,7 +205,7 @@ sfw_deactivate_session (void)
 
 	if (sn == NULL) return;
 
-	LASSERT (!sn->sn_timer_active);
+	LASSERT(!sn->sn_timer_active);
 
 	sfw_data.fw_session = NULL;
 	atomic_inc(&sfw_data.fw_nzombies);
@@ -219,7 +219,7 @@ sfw_deactivate_session (void)
 
 	spin_lock(&sfw_data.fw_lock);
 
-	list_for_each_entry (tsb, &sn->sn_batches, bat_list) {
+	list_for_each_entry(tsb, &sn->sn_batches, bat_list) {
 		if (sfw_batch_active(tsb)) {
 			nactive++;
 			sfw_stop_batch(tsb, 1);
@@ -239,16 +239,16 @@ sfw_deactivate_session (void)
 
 
 static void
-sfw_session_expired (void *data)
+sfw_session_expired(void *data)
 {
 	sfw_session_t *sn = data;
 
 	spin_lock(&sfw_data.fw_lock);
 
-	LASSERT (sn->sn_timer_active);
-	LASSERT (sn == sfw_data.fw_session);
+	LASSERT(sn->sn_timer_active);
+	LASSERT(sn == sfw_data.fw_session);
 
-	CWARN ("Session expired! sid: %s-%llu, name: %s\n",
+	CWARN("Session expired! sid: %s-%llu, name: %s\n",
 	       libcfs_nid2str(sn->sn_id.ses_nid),
 	       sn->sn_id.ses_stamp, &sn->sn_name[0]);
 
@@ -290,7 +290,7 @@ sfw_server_rpc_done(struct srpc_server_rpc *rpc)
 	struct srpc_service	*sv	= rpc->srpc_scd->scd_svc;
 	int			status	= rpc->srpc_status;
 
-	CDEBUG (D_NET,
+	CDEBUG(D_NET,
 		"Incoming framework RPC done: service %s, peer %s, status %s:%d\n",
 		sv->sv_name, libcfs_id2str(rpc->srpc_peer),
 		swi_state2str(rpc->srpc_wi.swi_state),
@@ -302,13 +302,13 @@ sfw_server_rpc_done(struct srpc_server_rpc *rpc)
 }
 
 static void
-sfw_client_rpc_fini (srpc_client_rpc_t *rpc)
+sfw_client_rpc_fini(srpc_client_rpc_t *rpc)
 {
-	LASSERT (rpc->crpc_bulk.bk_niov == 0);
-	LASSERT (list_empty(&rpc->crpc_list));
-	LASSERT (atomic_read(&rpc->crpc_refcount) == 0);
+	LASSERT(rpc->crpc_bulk.bk_niov == 0);
+	LASSERT(list_empty(&rpc->crpc_list));
+	LASSERT(atomic_read(&rpc->crpc_refcount) == 0);
 
-	CDEBUG (D_NET,
+	CDEBUG(D_NET,
 		"Outgoing framework RPC done: service %d, peer %s, status %s:%d:%d\n",
 		rpc->crpc_service, libcfs_id2str(rpc->crpc_dest),
 		swi_state2str(rpc->crpc_wi.swi_state),
@@ -324,14 +324,14 @@ sfw_client_rpc_fini (srpc_client_rpc_t *rpc)
 }
 
 static sfw_batch_t *
-sfw_find_batch (lst_bid_t bid)
+sfw_find_batch(lst_bid_t bid)
 {
 	sfw_session_t *sn = sfw_data.fw_session;
 	sfw_batch_t   *bat;
 
-	LASSERT (sn != NULL);
+	LASSERT(sn != NULL);
 
-	list_for_each_entry (bat, &sn->sn_batches, bat_list) {
+	list_for_each_entry(bat, &sn->sn_batches, bat_list) {
 		if (bat->bat_id.bat_id == bid.bat_id)
 			return bat;
 	}
@@ -340,12 +340,12 @@ sfw_find_batch (lst_bid_t bid)
 }
 
 static sfw_batch_t *
-sfw_bid2batch (lst_bid_t bid)
+sfw_bid2batch(lst_bid_t bid)
 {
 	sfw_session_t *sn = sfw_data.fw_session;
 	sfw_batch_t   *bat;
 
-	LASSERT (sn != NULL);
+	LASSERT(sn != NULL);
 
 	bat = sfw_find_batch(bid);
 	if (bat != NULL)
@@ -366,7 +366,7 @@ sfw_bid2batch (lst_bid_t bid)
 }
 
 static int
-sfw_get_stats (srpc_stat_reqst_t *request, srpc_stat_reply_t *reply)
+sfw_get_stats(srpc_stat_reqst_t *request, srpc_stat_reply_t *reply)
 {
 	sfw_session_t  *sn = sfw_data.fw_session;
 	sfw_counters_t *cnt = &reply->str_fw;
@@ -399,7 +399,7 @@ sfw_get_stats (srpc_stat_reqst_t *request, srpc_stat_reply_t *reply)
 	cnt->zombie_sessions = atomic_read(&sfw_data.fw_nzombies);
 
 	cnt->active_batches = 0;
-	list_for_each_entry (bat, &sn->sn_batches, bat_list) {
+	list_for_each_entry(bat, &sn->sn_batches, bat_list) {
 		if (atomic_read(&bat->bat_nactive) > 0)
 			cnt->active_batches++;
 	}
@@ -456,7 +456,7 @@ sfw_make_session(srpc_mksn_reqst_t *request, srpc_mksn_reply_t *reply)
 	/* brand new or create by force */
 	LIBCFS_ALLOC(sn, sizeof(sfw_session_t));
 	if (sn == NULL) {
-		CERROR ("Dropping RPC (mksn) under memory pressure.\n");
+		CERROR("Dropping RPC (mksn) under memory pressure.\n");
 		return -ENOMEM;
 	}
 
@@ -478,7 +478,7 @@ sfw_make_session(srpc_mksn_reqst_t *request, srpc_mksn_reply_t *reply)
 }
 
 static int
-sfw_remove_session (srpc_rmsn_reqst_t *request, srpc_rmsn_reply_t *reply)
+sfw_remove_session(srpc_rmsn_reqst_t *request, srpc_rmsn_reply_t *reply)
 {
 	sfw_session_t *sn = sfw_data.fw_session;
 
@@ -510,7 +510,7 @@ sfw_remove_session (srpc_rmsn_reqst_t *request, srpc_rmsn_reply_t *reply)
 }
 
 static int
-sfw_debug_session (srpc_debug_reqst_t *request, srpc_debug_reply_t *reply)
+sfw_debug_session(srpc_debug_reqst_t *request, srpc_debug_reply_t *reply)
 {
 	sfw_session_t *sn = sfw_data.fw_session;
 
@@ -531,13 +531,13 @@ sfw_debug_session (srpc_debug_reqst_t *request, srpc_debug_reply_t *reply)
 }
 
 static void
-sfw_test_rpc_fini (srpc_client_rpc_t *rpc)
+sfw_test_rpc_fini(srpc_client_rpc_t *rpc)
 {
 	sfw_test_unit_t     *tsu = rpc->crpc_priv;
 	sfw_test_instance_t *tsi = tsu->tsu_instance;
 
 	/* Called with hold of tsi->tsi_lock */
-	LASSERT (list_empty(&rpc->crpc_list));
+	LASSERT(list_empty(&rpc->crpc_list));
 	list_add(&rpc->crpc_list, &tsi->tsi_free_rpcs);
 }
 
@@ -608,7 +608,7 @@ sfw_unload_test(struct sfw_test_instance *tsi)
 }
 
 static void
-sfw_destroy_test_instance (sfw_test_instance_t *tsi)
+sfw_destroy_test_instance(sfw_test_instance_t *tsi)
 {
 	srpc_client_rpc_t *rpc;
 	sfw_test_unit_t   *tsu;
@@ -617,9 +617,9 @@ sfw_destroy_test_instance (sfw_test_instance_t *tsi)
 
 	tsi->tsi_ops->tso_fini(tsi);
 
-	LASSERT (!tsi->tsi_stopping);
-	LASSERT (list_empty(&tsi->tsi_active_rpcs));
-	LASSERT (!sfw_test_active(tsi));
+	LASSERT(!tsi->tsi_stopping);
+	LASSERT(list_empty(&tsi->tsi_active_rpcs));
+	LASSERT(!sfw_test_active(tsi));
 
 	while (!list_empty(&tsi->tsi_units)) {
 		tsu = list_entry(tsi->tsi_units.next,
@@ -642,12 +642,12 @@ clean:
 }
 
 static void
-sfw_destroy_batch (sfw_batch_t *tsb)
+sfw_destroy_batch(sfw_batch_t *tsb)
 {
 	sfw_test_instance_t *tsi;
 
-	LASSERT (!sfw_batch_active(tsb));
-	LASSERT (list_empty(&tsb->bat_list));
+	LASSERT(!sfw_batch_active(tsb));
+	LASSERT(list_empty(&tsb->bat_list));
 
 	while (!list_empty(&tsb->bat_tests)) {
 		tsi = list_entry(tsb->bat_tests.next,
@@ -661,12 +661,12 @@ sfw_destroy_batch (sfw_batch_t *tsb)
 }
 
 void
-sfw_destroy_session (sfw_session_t *sn)
+sfw_destroy_session(sfw_session_t *sn)
 {
 	sfw_batch_t *batch;
 
-	LASSERT (list_empty(&sn->sn_list));
-	LASSERT (sn != sfw_data.fw_session);
+	LASSERT(list_empty(&sn->sn_list));
+	LASSERT(sn != sfw_data.fw_session);
 
 	while (!list_empty(&sn->sn_batches)) {
 		batch = list_entry(sn->sn_batches.next,
@@ -685,13 +685,13 @@ sfw_unpack_addtest_req(srpc_msg_t *msg)
 {
 	srpc_test_reqst_t *req = &msg->msg_body.tes_reqst;
 
-	LASSERT (msg->msg_type == SRPC_MSG_TEST_REQST);
-	LASSERT (req->tsr_is_client);
+	LASSERT(msg->msg_type == SRPC_MSG_TEST_REQST);
+	LASSERT(req->tsr_is_client);
 
 	if (msg->msg_magic == SRPC_MSG_MAGIC)
 		return; /* no flipping needed */
 
-	LASSERT (msg->msg_magic == __swab32(SRPC_MSG_MAGIC));
+	LASSERT(msg->msg_magic == __swab32(SRPC_MSG_MAGIC));
 
 	if (req->tsr_service == SRPC_SERVICE_BRW) {
 		if ((msg->msg_ses_feats & LST_FEAT_BULK_LEN) == 0) {
@@ -721,12 +721,12 @@ sfw_unpack_addtest_req(srpc_msg_t *msg)
 		return;
 	}
 
-	LBUG ();
+	LBUG();
 	return;
 }
 
 static int
-sfw_add_test_instance (sfw_batch_t *tsb, srpc_server_rpc_t *rpc)
+sfw_add_test_instance(sfw_batch_t *tsb, srpc_server_rpc_t *rpc)
 {
 	srpc_msg_t	  *msg = &rpc->srpc_reqstbuf->buf_msg;
 	srpc_test_reqst_t   *req = &msg->msg_body.tes_reqst;
@@ -739,7 +739,7 @@ sfw_add_test_instance (sfw_batch_t *tsb, srpc_server_rpc_t *rpc)
 
 	LIBCFS_ALLOC(tsi, sizeof(*tsi));
 	if (tsi == NULL) {
-		CERROR ("Can't allocate test instance for batch: %llu\n",
+		CERROR("Can't allocate test instance for batch: %llu\n",
 			tsb->bat_id.bat_id);
 		return -ENOMEM;
 	}
@@ -764,7 +764,7 @@ sfw_add_test_instance (sfw_batch_t *tsb, srpc_server_rpc_t *rpc)
 		return rc;
 	}
 
-	LASSERT (!sfw_batch_active(tsb));
+	LASSERT(!sfw_batch_active(tsb));
 
 	if (!tsi->tsi_is_client) {
 		/* it's test server, just add it to tsb */
@@ -772,8 +772,8 @@ sfw_add_test_instance (sfw_batch_t *tsb, srpc_server_rpc_t *rpc)
 		return 0;
 	}
 
-	LASSERT (bk != NULL);
-	LASSERT (bk->bk_niov * SFW_ID_PER_PAGE >= (unsigned int)ndest);
+	LASSERT(bk != NULL);
+	LASSERT(bk->bk_niov * SFW_ID_PER_PAGE >= (unsigned int)ndest);
 	LASSERT((unsigned int)bk->bk_len >=
 		sizeof(lnet_process_id_packed_t) * ndest);
 
@@ -786,7 +786,7 @@ sfw_add_test_instance (sfw_batch_t *tsb, srpc_server_rpc_t *rpc)
 		int		       j;
 
 		dests = page_address(bk->bk_iovs[i / SFW_ID_PER_PAGE].kiov_page);
-		LASSERT (dests != NULL);  /* my pages are within KVM always */
+		LASSERT(dests != NULL);  /* my pages are within KVM always */
 		id = dests[i % SFW_ID_PER_PAGE];
 		if (msg->msg_magic != SRPC_MSG_MAGIC)
 			sfw_unpack_id(id);
@@ -795,7 +795,7 @@ sfw_add_test_instance (sfw_batch_t *tsb, srpc_server_rpc_t *rpc)
 			LIBCFS_ALLOC(tsu, sizeof(sfw_test_unit_t));
 			if (tsu == NULL) {
 				rc = -ENOMEM;
-				CERROR ("Can't allocate tsu for %d\n",
+				CERROR("Can't allocate tsu for %d\n",
 					tsi->tsi_service);
 				goto error;
 			}
@@ -815,19 +815,19 @@ sfw_add_test_instance (sfw_batch_t *tsb, srpc_server_rpc_t *rpc)
 	}
 
 error:
-	LASSERT (rc != 0);
+	LASSERT(rc != 0);
 	sfw_destroy_test_instance(tsi);
 	return rc;
 }
 
 static void
-sfw_test_unit_done (sfw_test_unit_t *tsu)
+sfw_test_unit_done(sfw_test_unit_t *tsu)
 {
 	sfw_test_instance_t *tsi = tsu->tsu_instance;
 	sfw_batch_t	 *tsb = tsi->tsi_batch;
 	sfw_session_t       *sn = tsb->bat_session;
 
-	LASSERT (sfw_test_active(tsi));
+	LASSERT(sfw_test_active(tsi));
 
 	if (!atomic_dec_and_test(&tsi->tsi_nactive))
 		return;
@@ -847,9 +847,9 @@ sfw_test_unit_done (sfw_test_unit_t *tsu)
 		return;
 	}
 
-	LASSERT (!list_empty(&sn->sn_list)); /* I'm a zombie! */
+	LASSERT(!list_empty(&sn->sn_list)); /* I'm a zombie! */
 
-	list_for_each_entry (tsb, &sn->sn_batches, bat_list) {
+	list_for_each_entry(tsb, &sn->sn_batches, bat_list) {
 		if (sfw_batch_active(tsb)) {
 			spin_unlock(&sfw_data.fw_lock);
 			return;
@@ -864,7 +864,7 @@ sfw_test_unit_done (sfw_test_unit_t *tsu)
 }
 
 static void
-sfw_test_rpc_done (srpc_client_rpc_t *rpc)
+sfw_test_rpc_done(srpc_client_rpc_t *rpc)
 {
 	sfw_test_unit_t     *tsu = rpc->crpc_priv;
 	sfw_test_instance_t *tsi = tsu->tsu_instance;
@@ -874,8 +874,8 @@ sfw_test_rpc_done (srpc_client_rpc_t *rpc)
 
 	spin_lock(&tsi->tsi_lock);
 
-	LASSERT (sfw_test_active(tsi));
-	LASSERT (!list_empty(&rpc->crpc_list));
+	LASSERT(sfw_test_active(tsi));
+	LASSERT(!list_empty(&rpc->crpc_list));
 
 	list_del_init(&rpc->crpc_list);
 
@@ -909,13 +909,13 @@ sfw_create_test_rpc(sfw_test_unit_t *tsu, lnet_process_id_t peer,
 
 	spin_lock(&tsi->tsi_lock);
 
-	LASSERT (sfw_test_active(tsi));
+	LASSERT(sfw_test_active(tsi));
 
 	if (!list_empty(&tsi->tsi_free_rpcs)) {
 		/* pick request from buffer */
 		rpc = list_entry(tsi->tsi_free_rpcs.next,
 				     srpc_client_rpc_t, crpc_list);
-		LASSERT (nblk == rpc->crpc_bulk.bk_niov);
+		LASSERT(nblk == rpc->crpc_bulk.bk_niov);
 		list_del_init(&rpc->crpc_list);
 	}
 
@@ -943,20 +943,20 @@ sfw_create_test_rpc(sfw_test_unit_t *tsu, lnet_process_id_t peer,
 }
 
 static int
-sfw_run_test (swi_workitem_t *wi)
+sfw_run_test(swi_workitem_t *wi)
 {
 	sfw_test_unit_t     *tsu = wi->swi_workitem.wi_data;
 	sfw_test_instance_t *tsi = tsu->tsu_instance;
 	srpc_client_rpc_t   *rpc = NULL;
 
-	LASSERT (wi == &tsu->tsu_worker);
+	LASSERT(wi == &tsu->tsu_worker);
 
 	if (tsi->tsi_ops->tso_prep_rpc(tsu, tsu->tsu_dest, &rpc) != 0) {
-		LASSERT (rpc == NULL);
+		LASSERT(rpc == NULL);
 		goto test_done;
 	}
 
-	LASSERT (rpc != NULL);
+	LASSERT(rpc != NULL);
 
 	spin_lock(&tsi->tsi_lock);
 
@@ -993,7 +993,7 @@ test_done:
 }
 
 static int
-sfw_run_batch (sfw_batch_t *tsb)
+sfw_run_batch(sfw_batch_t *tsb)
 {
 	swi_workitem_t      *wi;
 	sfw_test_unit_t     *tsu;
@@ -1005,16 +1005,16 @@ sfw_run_batch (sfw_batch_t *tsb)
 		return 0;
 	}
 
-	list_for_each_entry (tsi, &tsb->bat_tests, tsi_list) {
+	list_for_each_entry(tsi, &tsb->bat_tests, tsi_list) {
 		if (!tsi->tsi_is_client) /* skip server instances */
 			continue;
 
-		LASSERT (!tsi->tsi_stopping);
-		LASSERT (!sfw_test_active(tsi));
+		LASSERT(!tsi->tsi_stopping);
+		LASSERT(!sfw_test_active(tsi));
 
 		atomic_inc(&tsb->bat_nactive);
 
-		list_for_each_entry (tsu, &tsi->tsi_units, tsu_list) {
+		list_for_each_entry(tsu, &tsi->tsi_units, tsu_list) {
 			atomic_inc(&tsi->tsi_nactive);
 			tsu->tsu_loop = tsi->tsi_loop;
 			wi = &tsu->tsu_worker;
@@ -1029,7 +1029,7 @@ sfw_run_batch (sfw_batch_t *tsb)
 }
 
 int
-sfw_stop_batch (sfw_batch_t *tsb, int force)
+sfw_stop_batch(sfw_batch_t *tsb, int force)
 {
 	sfw_test_instance_t *tsi;
 	srpc_client_rpc_t   *rpc;
@@ -1039,7 +1039,7 @@ sfw_stop_batch (sfw_batch_t *tsb, int force)
 		return 0;
 	}
 
-	list_for_each_entry (tsi, &tsb->bat_tests, tsi_list) {
+	list_for_each_entry(tsi, &tsb->bat_tests, tsi_list) {
 		spin_lock(&tsi->tsi_lock);
 
 		if (!tsi->tsi_is_client ||
@@ -1071,7 +1071,7 @@ sfw_stop_batch (sfw_batch_t *tsb, int force)
 }
 
 static int
-sfw_query_batch (sfw_batch_t *tsb, int testidx, srpc_batch_reply_t *reply)
+sfw_query_batch(sfw_batch_t *tsb, int testidx, srpc_batch_reply_t *reply)
 {
 	sfw_test_instance_t *tsi;
 
@@ -1083,7 +1083,7 @@ sfw_query_batch (sfw_batch_t *tsb, int testidx, srpc_batch_reply_t *reply)
 		return 0;
 	}
 
-	list_for_each_entry (tsi, &tsb->bat_tests, tsi_list) {
+	list_for_each_entry(tsi, &tsb->bat_tests, tsi_list) {
 		if (testidx-- > 1)
 			continue;
 
@@ -1095,7 +1095,7 @@ sfw_query_batch (sfw_batch_t *tsb, int testidx, srpc_batch_reply_t *reply)
 }
 
 void
-sfw_free_pages (srpc_server_rpc_t *rpc)
+sfw_free_pages(srpc_server_rpc_t *rpc)
 {
 	srpc_free_bulk(rpc->srpc_bulk);
 	rpc->srpc_bulk = NULL;
@@ -1116,7 +1116,7 @@ sfw_alloc_pages(struct srpc_server_rpc *rpc, int cpt, int npages, int len,
 }
 
 static int
-sfw_add_test (srpc_server_rpc_t *rpc)
+sfw_add_test(srpc_server_rpc_t *rpc)
 {
 	sfw_session_t     *sn = sfw_data.fw_session;
 	srpc_test_reply_t *reply = &rpc->srpc_replymsg.msg_body.tes_reply;
@@ -1147,7 +1147,7 @@ sfw_add_test (srpc_server_rpc_t *rpc)
 
 	bat = sfw_bid2batch(request->tsr_bid);
 	if (bat == NULL) {
-		CERROR ("Dropping RPC (%s) from %s under memory pressure.\n",
+		CERROR("Dropping RPC (%s) from %s under memory pressure.\n",
 			rpc->srpc_scd->scd_svc->sv_name,
 			libcfs_id2str(rpc->srpc_peer));
 		return -ENOMEM;
@@ -1175,7 +1175,7 @@ sfw_add_test (srpc_server_rpc_t *rpc)
 	}
 
 	rc = sfw_add_test_instance(bat, rpc);
-	CDEBUG (rc == 0 ? D_NET : D_WARNING,
+	CDEBUG(rc == 0 ? D_NET : D_WARNING,
 		"%s test: sv %d %s, loop %d, concur %d, ndest %d\n",
 		rc == 0 ? "Added" : "Failed to add", request->tsr_service,
 		request->tsr_is_client ? "client" : "server",
@@ -1186,7 +1186,7 @@ sfw_add_test (srpc_server_rpc_t *rpc)
 }
 
 static int
-sfw_control_batch (srpc_batch_reqst_t *request, srpc_batch_reply_t *reply)
+sfw_control_batch(srpc_batch_reqst_t *request, srpc_batch_reply_t *reply)
 {
 	sfw_session_t *sn = sfw_data.fw_session;
 	int	    rc = 0;
@@ -1285,7 +1285,7 @@ sfw_handle_server_rpc(struct srpc_server_rpc *rpc)
 
 	switch (sv->sv_id) {
 	default:
-		LBUG ();
+		LBUG();
 	case SRPC_SERVICE_TEST:
 		rc = sfw_add_test(rpc);
 		break;
@@ -1387,8 +1387,8 @@ sfw_create_rpc(lnet_process_id_t peer, int service,
 
 	spin_lock(&sfw_data.fw_lock);
 
-	LASSERT (!sfw_data.fw_shuttingdown);
-	LASSERT (service <= SRPC_FRAMEWORK_SERVICE_MAX_ID);
+	LASSERT(!sfw_data.fw_shuttingdown);
+	LASSERT(service <= SRPC_FRAMEWORK_SERVICE_MAX_ID);
 
 	if (nbulkiov == 0 && !list_empty(&sfw_data.fw_zombie_rpcs)) {
 		rpc = list_entry(sfw_data.fw_zombie_rpcs.next,
@@ -1416,13 +1416,13 @@ sfw_create_rpc(lnet_process_id_t peer, int service,
 }
 
 void
-sfw_unpack_message (srpc_msg_t *msg)
+sfw_unpack_message(srpc_msg_t *msg)
 {
 	if (msg->msg_magic == SRPC_MSG_MAGIC)
 		return; /* no flipping needed */
 
 	/* srpc module should guarantee I wouldn't get crap */
-	LASSERT (msg->msg_magic == __swab32(SRPC_MSG_MAGIC));
+	LASSERT(msg->msg_magic == __swab32(SRPC_MSG_MAGIC));
 
 	if (msg->msg_type == SRPC_MSG_STAT_REQST) {
 		srpc_stat_reqst_t *req = &msg->msg_body.stat_reqst;
@@ -1555,12 +1555,12 @@ sfw_unpack_message (srpc_msg_t *msg)
 		return;
 	}
 
-	LBUG ();
+	LBUG();
 	return;
 }
 
 void
-sfw_abort_rpc (srpc_client_rpc_t *rpc)
+sfw_abort_rpc(srpc_client_rpc_t *rpc)
 {
 	LASSERT(atomic_read(&rpc->crpc_refcount) > 0);
 	LASSERT(rpc->crpc_service <= SRPC_FRAMEWORK_SERVICE_MAX_ID);
@@ -1572,14 +1572,14 @@ sfw_abort_rpc (srpc_client_rpc_t *rpc)
 }
 
 void
-sfw_post_rpc (srpc_client_rpc_t *rpc)
+sfw_post_rpc(srpc_client_rpc_t *rpc)
 {
 	spin_lock(&rpc->crpc_lock);
 
-	LASSERT (!rpc->crpc_closed);
-	LASSERT (!rpc->crpc_aborted);
-	LASSERT (list_empty(&rpc->crpc_list));
-	LASSERT (!sfw_data.fw_shuttingdown);
+	LASSERT(!rpc->crpc_closed);
+	LASSERT(!rpc->crpc_aborted);
+	LASSERT(list_empty(&rpc->crpc_list));
+	LASSERT(!sfw_data.fw_shuttingdown);
 
 	rpc->crpc_timeout = rpc_timeout;
 	srpc_post_rpc(rpc);
@@ -1638,7 +1638,7 @@ extern void brw_init_test_service(void);
 
 
 int
-sfw_startup (void)
+sfw_startup(void)
 {
 	int	      i;
 	int	      rc;
@@ -1648,13 +1648,13 @@ sfw_startup (void)
 
 
 	if (session_timeout < 0) {
-		CERROR ("Session timeout must be non-negative: %d\n",
+		CERROR("Session timeout must be non-negative: %d\n",
 			session_timeout);
 		return -EINVAL;
 	}
 
 	if (rpc_timeout < 0) {
-		CERROR ("RPC timeout must be non-negative: %d\n",
+		CERROR("RPC timeout must be non-negative: %d\n",
 			rpc_timeout);
 		return -EINVAL;
 	}
@@ -1678,21 +1678,21 @@ sfw_startup (void)
 	brw_init_test_client();
 	brw_init_test_service();
 	rc = sfw_register_test(&brw_test_service, &brw_test_client);
-	LASSERT (rc == 0);
+	LASSERT(rc == 0);
 
 	ping_init_test_client();
 	ping_init_test_service();
 	rc = sfw_register_test(&ping_test_service, &ping_test_client);
-	LASSERT (rc == 0);
+	LASSERT(rc == 0);
 
 	error = 0;
-	list_for_each_entry (tsc, &sfw_data.fw_tests, tsc_list) {
+	list_for_each_entry(tsc, &sfw_data.fw_tests, tsc_list) {
 		sv = tsc->tsc_srv_service;
 
 		rc = srpc_add_service(sv);
-		LASSERT (rc != -EBUSY);
+		LASSERT(rc != -EBUSY);
 		if (rc != 0) {
-			CWARN ("Failed to add %s service: %d\n",
+			CWARN("Failed to add %s service: %d\n",
 			       sv->sv_name, rc);
 			error = rc;
 		}
@@ -1709,9 +1709,9 @@ sfw_startup (void)
 			sv->sv_bulk_ready = sfw_bulk_ready;
 
 		rc = srpc_add_service(sv);
-		LASSERT (rc != -EBUSY);
+		LASSERT(rc != -EBUSY);
 		if (rc != 0) {
-			CWARN ("Failed to add %s service: %d\n",
+			CWARN("Failed to add %s service: %d\n",
 			       sv->sv_name, rc);
 			error = rc;
 		}
@@ -1733,7 +1733,7 @@ sfw_startup (void)
 }
 
 void
-sfw_shutdown (void)
+sfw_shutdown(void)
 {
 	srpc_service_t	*sv;
 	sfw_test_case_t	*tsc;
@@ -1766,7 +1766,7 @@ sfw_shutdown (void)
 		srpc_remove_service(sv);
 	}
 
-	list_for_each_entry (tsc, &sfw_data.fw_tests, tsc_list) {
+	list_for_each_entry(tsc, &sfw_data.fw_tests, tsc_list) {
 		sv = tsc->tsc_srv_service;
 		srpc_shutdown_service(sv);
 		srpc_remove_service(sv);
diff --git a/drivers/staging/lustre/lnet/selftest/module.c b/drivers/staging/lustre/lnet/selftest/module.c
index faf4098..7ad62f1 100644
--- a/drivers/staging/lustre/lnet/selftest/module.c
+++ b/drivers/staging/lustre/lnet/selftest/module.c
@@ -87,7 +87,6 @@ lnet_selftest_fini(void)
 	default:
 		LBUG();
 	}
-	return;
 }
 
 static int
diff --git a/drivers/staging/lustre/lnet/selftest/ping_test.c b/drivers/staging/lustre/lnet/selftest/ping_test.c
index d8c0df6..644069a 100644
--- a/drivers/staging/lustre/lnet/selftest/ping_test.c
+++ b/drivers/staging/lustre/lnet/selftest/ping_test.c
@@ -70,19 +70,19 @@ ping_client_init(sfw_test_instance_t *tsi)
 }
 
 static void
-ping_client_fini (sfw_test_instance_t *tsi)
+ping_client_fini(sfw_test_instance_t *tsi)
 {
 	sfw_session_t *sn = tsi->tsi_batch->bat_session;
 	int	    errors;
 
-	LASSERT (sn != NULL);
-	LASSERT (tsi->tsi_is_client);
+	LASSERT(sn != NULL);
+	LASSERT(tsi->tsi_is_client);
 
 	errors = atomic_read(&sn->sn_ping_errors);
 	if (errors)
-		CWARN ("%d pings have failed.\n", errors);
+		CWARN("%d pings have failed.\n", errors);
 	else
-		CDEBUG (D_NET, "Ping test finished OK.\n");
+		CDEBUG(D_NET, "Ping test finished OK.\n");
 }
 
 static int
@@ -118,7 +118,7 @@ ping_client_prep_rpc(sfw_test_unit_t *tsu,
 }
 
 static void
-ping_client_done_rpc (sfw_test_unit_t *tsu, srpc_client_rpc_t *rpc)
+ping_client_done_rpc(sfw_test_unit_t *tsu, srpc_client_rpc_t *rpc)
 {
 	sfw_test_instance_t *tsi = tsu->tsu_instance;
 	sfw_session_t       *sn = tsi->tsi_batch->bat_session;
@@ -126,12 +126,12 @@ ping_client_done_rpc (sfw_test_unit_t *tsu, srpc_client_rpc_t *rpc)
 	srpc_ping_reply_t   *reply = &rpc->crpc_replymsg.msg_body.ping_reply;
 	struct timeval       tv;
 
-	LASSERT (sn != NULL);
+	LASSERT(sn != NULL);
 
 	if (rpc->crpc_status != 0) {
 		if (!tsi->tsi_stopping) /* rpc could have been aborted */
 			atomic_inc(&sn->sn_ping_errors);
-		CERROR ("Unable to ping %s (%d): %d\n",
+		CERROR("Unable to ping %s (%d): %d\n",
 			libcfs_id2str(rpc->crpc_dest),
 			reqst->pnr_seq, rpc->crpc_status);
 		return;
@@ -146,7 +146,7 @@ ping_client_done_rpc (sfw_test_unit_t *tsu, srpc_client_rpc_t *rpc)
 	if (reply->pnr_magic != LST_PING_TEST_MAGIC) {
 		rpc->crpc_status = -EBADMSG;
 		atomic_inc(&sn->sn_ping_errors);
-		CERROR ("Bad magic %u from %s, %u expected.\n",
+		CERROR("Bad magic %u from %s, %u expected.\n",
 			reply->pnr_magic, libcfs_id2str(rpc->crpc_dest),
 			LST_PING_TEST_MAGIC);
 		return;
@@ -155,14 +155,14 @@ ping_client_done_rpc (sfw_test_unit_t *tsu, srpc_client_rpc_t *rpc)
 	if (reply->pnr_seq != reqst->pnr_seq) {
 		rpc->crpc_status = -EBADMSG;
 		atomic_inc(&sn->sn_ping_errors);
-		CERROR ("Bad seq %u from %s, %u expected.\n",
+		CERROR("Bad seq %u from %s, %u expected.\n",
 			reply->pnr_seq, libcfs_id2str(rpc->crpc_dest),
 			reqst->pnr_seq);
 		return;
 	}
 
 	cfs_fs_timeval(&tv);
-	CDEBUG (D_NET, "%d reply in %u usec\n", reply->pnr_seq,
+	CDEBUG(D_NET, "%d reply in %u usec\n", reply->pnr_seq,
 		(unsigned)((tv.tv_sec - (unsigned)reqst->pnr_time_sec) * 1000000
 			   + (tv.tv_usec - reqst->pnr_time_usec)));
 	return;
@@ -177,20 +177,20 @@ ping_server_handle(struct srpc_server_rpc *rpc)
 	srpc_ping_reqst_t *req = &reqstmsg->msg_body.ping_reqst;
 	srpc_ping_reply_t *rep = &rpc->srpc_replymsg.msg_body.ping_reply;
 
-	LASSERT (sv->sv_id == SRPC_SERVICE_PING);
+	LASSERT(sv->sv_id == SRPC_SERVICE_PING);
 
 	if (reqstmsg->msg_magic != SRPC_MSG_MAGIC) {
-		LASSERT (reqstmsg->msg_magic == __swab32(SRPC_MSG_MAGIC));
+		LASSERT(reqstmsg->msg_magic == __swab32(SRPC_MSG_MAGIC));
 
 		__swab32s(&req->pnr_seq);
 		__swab32s(&req->pnr_magic);
 		__swab64s(&req->pnr_time_sec);
 		__swab64s(&req->pnr_time_usec);
 	}
-	LASSERT (reqstmsg->msg_type == srpc_service2request(sv->sv_id));
+	LASSERT(reqstmsg->msg_type == srpc_service2request(sv->sv_id));
 
 	if (req->pnr_magic != LST_PING_TEST_MAGIC) {
-		CERROR ("Unexpected magic %08x from %s\n",
+		CERROR("Unexpected magic %08x from %s\n",
 			req->pnr_magic, libcfs_id2str(rpc->srpc_peer));
 		return -EINVAL;
 	}
diff --git a/drivers/staging/lustre/lnet/selftest/rpc.c b/drivers/staging/lustre/lnet/selftest/rpc.c
index 1f7d9a6..080788a 100644
--- a/drivers/staging/lustre/lnet/selftest/rpc.c
+++ b/drivers/staging/lustre/lnet/selftest/rpc.c
@@ -71,16 +71,16 @@ srpc_serv_portal(int svc_id)
 }
 
 /* forward ref's */
-int srpc_handle_rpc (swi_workitem_t *wi);
+int srpc_handle_rpc(swi_workitem_t *wi);
 
-void srpc_get_counters (srpc_counters_t *cnt)
+void srpc_get_counters(srpc_counters_t *cnt)
 {
 	spin_lock(&srpc_data.rpc_glock);
 	*cnt = srpc_data.rpc_counters;
 	spin_unlock(&srpc_data.rpc_glock);
 }
 
-void srpc_set_counters (const srpc_counters_t *cnt)
+void srpc_set_counters(const srpc_counters_t *cnt)
 {
 	spin_lock(&srpc_data.rpc_glock);
 	srpc_data.rpc_counters = *cnt;
@@ -102,16 +102,17 @@ srpc_add_bulk_page(srpc_bulk_t *bk, struct page *pg, int i, int nob)
 }
 
 void
-srpc_free_bulk (srpc_bulk_t *bk)
+srpc_free_bulk(srpc_bulk_t *bk)
 {
 	int	 i;
 	struct page *pg;
 
-	LASSERT (bk != NULL);
+	LASSERT(bk != NULL);
 
 	for (i = 0; i < bk->bk_niov; i++) {
 		pg = bk->bk_iovs[i].kiov_page;
-		if (pg == NULL) break;
+		if (pg == NULL)
+			break;
 
 		__free_page(pg);
 	}
@@ -160,7 +161,7 @@ srpc_alloc_bulk(int cpt, unsigned bulk_npg, unsigned bulk_len, int sink)
 }
 
 static inline __u64
-srpc_next_id (void)
+srpc_next_id(void)
 {
 	__u64 id;
 
@@ -335,7 +336,7 @@ srpc_add_service(struct srpc_service *sv)
 }
 
 int
-srpc_remove_service (srpc_service_t *sv)
+srpc_remove_service(srpc_service_t *sv)
 {
 	int id = sv->sv_id;
 
@@ -363,8 +364,8 @@ srpc_post_passive_rdma(int portal, int local, __u64 matchbits, void *buf,
 	rc = LNetMEAttach(portal, peer, matchbits, 0, LNET_UNLINK,
 			  local ? LNET_INS_LOCAL : LNET_INS_AFTER, &meh);
 	if (rc != 0) {
-		CERROR ("LNetMEAttach failed: %d\n", rc);
-		LASSERT (rc == -ENOMEM);
+		CERROR("LNetMEAttach failed: %d\n", rc);
+		LASSERT(rc == -ENOMEM);
 		return -ENOMEM;
 	}
 
@@ -377,15 +378,15 @@ srpc_post_passive_rdma(int portal, int local, __u64 matchbits, void *buf,
 
 	rc = LNetMDAttach(meh, md, LNET_UNLINK, mdh);
 	if (rc != 0) {
-		CERROR ("LNetMDAttach failed: %d\n", rc);
-		LASSERT (rc == -ENOMEM);
+		CERROR("LNetMDAttach failed: %d\n", rc);
+		LASSERT(rc == -ENOMEM);
 
 		rc = LNetMEUnlink(meh);
-		LASSERT (rc == 0);
+		LASSERT(rc == 0);
 		return -ENOMEM;
 	}
 
-	CDEBUG (D_NET,
+	CDEBUG(D_NET,
 		"Posted passive RDMA: peer %s, portal %d, matchbits %#llx\n",
 		libcfs_id2str(peer), portal, matchbits);
 	return 0;
@@ -408,8 +409,8 @@ srpc_post_active_rdma(int portal, __u64 matchbits, void *buf, int len,
 
 	rc = LNetMDBind(md, LNET_UNLINK, mdh);
 	if (rc != 0) {
-		CERROR ("LNetMDBind failed: %d\n", rc);
-		LASSERT (rc == -ENOMEM);
+		CERROR("LNetMDBind failed: %d\n", rc);
+		LASSERT(rc == -ENOMEM);
 		return -ENOMEM;
 	}
 
@@ -420,13 +421,13 @@ srpc_post_active_rdma(int portal, __u64 matchbits, void *buf, int len,
 		rc = LNetPut(self, *mdh, LNET_NOACK_REQ, peer,
 			     portal, matchbits, 0, 0);
 	} else {
-		LASSERT ((options & LNET_MD_OP_GET) != 0);
+		LASSERT((options & LNET_MD_OP_GET) != 0);
 
 		rc = LNetGet(self, *mdh, peer, portal, matchbits, 0);
 	}
 
 	if (rc != 0) {
-		CERROR ("LNet%s(%s, %d, %lld) failed: %d\n",
+		CERROR("LNet%s(%s, %d, %lld) failed: %d\n",
 			((options & LNET_MD_OP_PUT) != 0) ? "Put" : "Get",
 			libcfs_id2str(peer), portal, matchbits, rc);
 
@@ -434,9 +435,9 @@ srpc_post_active_rdma(int portal, __u64 matchbits, void *buf, int len,
 		 * with failure, so fall through and return success here.
 		 */
 		rc = LNetMDUnlink(*mdh);
-		LASSERT (rc == 0);
+		LASSERT(rc == 0);
 	} else {
-		CDEBUG (D_NET,
+		CDEBUG(D_NET,
 			"Posted active RDMA: peer %s, portal %u, matchbits %#llx\n",
 			libcfs_id2str(peer), portal, matchbits);
 	}
@@ -788,7 +789,7 @@ srpc_shutdown_service(srpc_service_t *sv)
 }
 
 static int
-srpc_send_request (srpc_client_rpc_t *rpc)
+srpc_send_request(srpc_client_rpc_t *rpc)
 {
 	srpc_event_t *ev = &rpc->crpc_reqstev;
 	int	   rc;
@@ -801,14 +802,14 @@ srpc_send_request (srpc_client_rpc_t *rpc)
 				     &rpc->crpc_reqstmsg, sizeof(srpc_msg_t),
 				     &rpc->crpc_reqstmdh, ev);
 	if (rc != 0) {
-		LASSERT (rc == -ENOMEM);
+		LASSERT(rc == -ENOMEM);
 		ev->ev_fired = 1;  /* no more event expected */
 	}
 	return rc;
 }
 
 static int
-srpc_prepare_reply (srpc_client_rpc_t *rpc)
+srpc_prepare_reply(srpc_client_rpc_t *rpc)
 {
 	srpc_event_t *ev = &rpc->crpc_replyev;
 	__u64	*id = &rpc->crpc_reqstmsg.msg_body.reqst.rpyid;
@@ -825,14 +826,14 @@ srpc_prepare_reply (srpc_client_rpc_t *rpc)
 				    LNET_MD_OP_PUT, rpc->crpc_dest,
 				    &rpc->crpc_replymdh, ev);
 	if (rc != 0) {
-		LASSERT (rc == -ENOMEM);
+		LASSERT(rc == -ENOMEM);
 		ev->ev_fired = 1;  /* no more event expected */
 	}
 	return rc;
 }
 
 static int
-srpc_prepare_bulk (srpc_client_rpc_t *rpc)
+srpc_prepare_bulk(srpc_client_rpc_t *rpc)
 {
 	srpc_bulk_t  *bk = &rpc->crpc_bulk;
 	srpc_event_t *ev = &rpc->crpc_bulkev;
@@ -840,9 +841,10 @@ srpc_prepare_bulk (srpc_client_rpc_t *rpc)
 	int	   rc;
 	int	   opt;
 
-	LASSERT (bk->bk_niov <= LNET_MAX_IOV);
+	LASSERT(bk->bk_niov <= LNET_MAX_IOV);
 
-	if (bk->bk_niov == 0) return 0; /* nothing to do */
+	if (bk->bk_niov == 0)
+		return 0; /* nothing to do */
 
 	opt = bk->bk_sink ? LNET_MD_OP_PUT : LNET_MD_OP_GET;
 	opt |= LNET_MD_KIOV;
@@ -857,14 +859,14 @@ srpc_prepare_bulk (srpc_client_rpc_t *rpc)
 				    &bk->bk_iovs[0], bk->bk_niov, opt,
 				    rpc->crpc_dest, &bk->bk_mdh, ev);
 	if (rc != 0) {
-		LASSERT (rc == -ENOMEM);
+		LASSERT(rc == -ENOMEM);
 		ev->ev_fired = 1;  /* no more event expected */
 	}
 	return rc;
 }
 
 static int
-srpc_do_bulk (srpc_server_rpc_t *rpc)
+srpc_do_bulk(srpc_server_rpc_t *rpc)
 {
 	srpc_event_t  *ev = &rpc->srpc_ev;
 	srpc_bulk_t   *bk = rpc->srpc_bulk;
@@ -872,7 +874,7 @@ srpc_do_bulk (srpc_server_rpc_t *rpc)
 	int	    rc;
 	int	    opt;
 
-	LASSERT (bk != NULL);
+	LASSERT(bk != NULL);
 
 	opt = bk->bk_sink ? LNET_MD_OP_GET : LNET_MD_OP_PUT;
 	opt |= LNET_MD_KIOV;
@@ -898,11 +900,11 @@ srpc_server_rpc_done(srpc_server_rpc_t *rpc, int status)
 	struct srpc_service	*sv  = scd->scd_svc;
 	srpc_buffer_t		*buffer;
 
-	LASSERT (status != 0 || rpc->srpc_wi.swi_state == SWI_STATE_DONE);
+	LASSERT(status != 0 || rpc->srpc_wi.swi_state == SWI_STATE_DONE);
 
 	rpc->srpc_status = status;
 
-	CDEBUG_LIMIT (status == 0 ? D_NET : D_NETERROR,
+	CDEBUG_LIMIT(status == 0 ? D_NET : D_NETERROR,
 		"Server RPC %p done: service %s, peer %s, status %s:%d\n",
 		rpc, sv->sv_name, libcfs_id2str(rpc->srpc_peer),
 		swi_state2str(rpc->srpc_wi.swi_state), status);
@@ -985,7 +987,7 @@ srpc_handle_rpc(swi_workitem_t *wi)
 
 	switch (wi->swi_state) {
 	default:
-		LBUG ();
+		LBUG();
 	case SWI_STATE_NEWBORN: {
 		srpc_msg_t	   *msg;
 		srpc_generic_reply_t *reply;
@@ -1023,12 +1025,12 @@ srpc_handle_rpc(swi_workitem_t *wi)
 			if (rc == 0)
 				return 0; /* wait for bulk */
 
-			LASSERT (ev->ev_fired);
+			LASSERT(ev->ev_fired);
 			ev->ev_status = rc;
 		}
 	}
 	case SWI_STATE_BULK_STARTED:
-		LASSERT (rpc->srpc_bulk == NULL || ev->ev_fired);
+		LASSERT(rpc->srpc_bulk == NULL || ev->ev_fired);
 
 		if (rpc->srpc_bulk != NULL) {
 			rc = ev->ev_status;
@@ -1055,7 +1057,7 @@ srpc_handle_rpc(swi_workitem_t *wi)
 			       rpc, rpc->srpc_bulk, sv->sv_id);
 			CERROR("Event: status %d, type %d, lnet %d\n",
 			       ev->ev_status, ev->ev_type, ev->ev_lnet);
-			LASSERT (ev->ev_fired);
+			LASSERT(ev->ev_fired);
 		}
 
 		wi->swi_state = SWI_STATE_DONE;
@@ -1067,11 +1069,11 @@ srpc_handle_rpc(swi_workitem_t *wi)
 }
 
 static void
-srpc_client_rpc_expired (void *data)
+srpc_client_rpc_expired(void *data)
 {
 	srpc_client_rpc_t *rpc = data;
 
-	CWARN ("Client RPC expired: service %d, peer %s, timeout %d.\n",
+	CWARN("Client RPC expired: service %d, peer %s, timeout %d.\n",
 	       rpc->crpc_service, libcfs_id2str(rpc->crpc_dest),
 	       rpc->crpc_timeout);
 
@@ -1088,11 +1090,12 @@ srpc_client_rpc_expired (void *data)
 }
 
 inline void
-srpc_add_client_rpc_timer (srpc_client_rpc_t *rpc)
+srpc_add_client_rpc_timer(srpc_client_rpc_t *rpc)
 {
 	stt_timer_t *timer = &rpc->crpc_timer;
 
-	if (rpc->crpc_timeout == 0) return;
+	if (rpc->crpc_timeout == 0)
+		return;
 
 	INIT_LIST_HEAD(&timer->stt_list);
 	timer->stt_data    = rpc;
@@ -1109,7 +1112,7 @@ srpc_add_client_rpc_timer (srpc_client_rpc_t *rpc)
  * Upon exit the RPC expiry timer is not queued and the handler is not
  * running on any CPU. */
 static void
-srpc_del_client_rpc_timer (srpc_client_rpc_t *rpc)
+srpc_del_client_rpc_timer(srpc_client_rpc_t *rpc)
 {
 	/* timer not planted or already exploded */
 	if (rpc->crpc_timeout == 0)
@@ -1130,7 +1133,7 @@ srpc_del_client_rpc_timer (srpc_client_rpc_t *rpc)
 }
 
 static void
-srpc_client_rpc_done (srpc_client_rpc_t *rpc, int status)
+srpc_client_rpc_done(srpc_client_rpc_t *rpc, int status)
 {
 	swi_workitem_t *wi = &rpc->crpc_wi;
 
@@ -1144,7 +1147,7 @@ srpc_client_rpc_done (srpc_client_rpc_t *rpc, int status)
 
 	srpc_del_client_rpc_timer(rpc);
 
-	CDEBUG_LIMIT ((status == 0) ? D_NET : D_NETERROR,
+	CDEBUG_LIMIT((status == 0) ? D_NET : D_NETERROR,
 		"Client RPC done: service %d, peer %s, status %s:%d:%d\n",
 		rpc->crpc_service, libcfs_id2str(rpc->crpc_dest),
 		swi_state2str(wi->swi_state), rpc->crpc_aborted, status);
@@ -1157,7 +1160,7 @@ srpc_client_rpc_done (srpc_client_rpc_t *rpc, int status)
 	 *   scheduling me.
 	 * Cancel pending schedules and prevent future schedule attempts:
 	 */
-	LASSERT (!srpc_event_pending(rpc));
+	LASSERT(!srpc_event_pending(rpc));
 	swi_exit_workitem(wi);
 
 	spin_unlock(&rpc->crpc_lock);
@@ -1168,7 +1171,7 @@ srpc_client_rpc_done (srpc_client_rpc_t *rpc, int status)
 
 /* sends an outgoing RPC */
 int
-srpc_send_rpc (swi_workitem_t *wi)
+srpc_send_rpc(swi_workitem_t *wi)
 {
 	int		rc = 0;
 	srpc_client_rpc_t *rpc;
@@ -1179,8 +1182,8 @@ srpc_send_rpc (swi_workitem_t *wi)
 
 	rpc = wi->swi_workitem.wi_data;
 
-	LASSERT (rpc != NULL);
-	LASSERT (wi == &rpc->crpc_wi);
+	LASSERT(rpc != NULL);
+	LASSERT(wi == &rpc->crpc_wi);
 
 	reply = &rpc->crpc_replymsg;
 	do_bulk = rpc->crpc_bulk.bk_niov > 0;
@@ -1196,9 +1199,9 @@ srpc_send_rpc (swi_workitem_t *wi)
 
 	switch (wi->swi_state) {
 	default:
-		LBUG ();
+		LBUG();
 	case SWI_STATE_NEWBORN:
-		LASSERT (!srpc_event_pending(rpc));
+		LASSERT(!srpc_event_pending(rpc));
 
 		rc = srpc_prepare_reply(rpc);
 		if (rc != 0) {
@@ -1207,7 +1210,8 @@ srpc_send_rpc (swi_workitem_t *wi)
 		}
 
 		rc = srpc_prepare_bulk(rpc);
-		if (rc != 0) break;
+		if (rc != 0)
+			break;
 
 		wi->swi_state = SWI_STATE_REQUEST_SUBMITTED;
 		rc = srpc_send_request(rpc);
@@ -1217,20 +1221,24 @@ srpc_send_rpc (swi_workitem_t *wi)
 		/* CAVEAT EMPTOR: rqtev, rpyev, and bulkev may come in any
 		 * order; however, they're processed in a strict order:
 		 * rqt, rpy, and bulk. */
-		if (!rpc->crpc_reqstev.ev_fired) break;
+		if (!rpc->crpc_reqstev.ev_fired)
+			break;
 
 		rc = rpc->crpc_reqstev.ev_status;
-		if (rc != 0) break;
+		if (rc != 0)
+			break;
 
 		wi->swi_state = SWI_STATE_REQUEST_SENT;
 		/* perhaps more events, fall thru */
 	case SWI_STATE_REQUEST_SENT: {
 		srpc_msg_type_t type = srpc_service2reply(rpc->crpc_service);
 
-		if (!rpc->crpc_replyev.ev_fired) break;
+		if (!rpc->crpc_replyev.ev_fired)
+			break;
 
 		rc = rpc->crpc_replyev.ev_status;
-		if (rc != 0) break;
+		if (rc != 0)
+			break;
 
 		srpc_unpack_msg_hdr(reply);
 		if (reply->msg_type != type ||
@@ -1254,7 +1262,8 @@ srpc_send_rpc (swi_workitem_t *wi)
 		wi->swi_state = SWI_STATE_REPLY_RECEIVED;
 	}
 	case SWI_STATE_REPLY_RECEIVED:
-		if (do_bulk && !rpc->crpc_bulkev.ev_fired) break;
+		if (do_bulk && !rpc->crpc_bulkev.ev_fired)
+			break;
 
 		rc = do_bulk ? rpc->crpc_bulkev.ev_status : 0;
 
@@ -1292,7 +1301,7 @@ abort:
 }
 
 srpc_client_rpc_t *
-srpc_create_client_rpc (lnet_process_id_t peer, int service,
+srpc_create_client_rpc(lnet_process_id_t peer, int service,
 			int nbulkiov, int bulklen,
 			void (*rpc_done)(srpc_client_rpc_t *),
 			void (*rpc_fini)(srpc_client_rpc_t *), void *priv)
@@ -1311,15 +1320,15 @@ srpc_create_client_rpc (lnet_process_id_t peer, int service,
 
 /* called with rpc->crpc_lock held */
 void
-srpc_abort_rpc (srpc_client_rpc_t *rpc, int why)
+srpc_abort_rpc(srpc_client_rpc_t *rpc, int why)
 {
-	LASSERT (why != 0);
+	LASSERT(why != 0);
 
 	if (rpc->crpc_aborted || /* already aborted */
 	    rpc->crpc_closed)    /* callback imminent */
 		return;
 
-	CDEBUG (D_NET,
+	CDEBUG(D_NET,
 		"Aborting RPC: service %d, peer %s, state %s, why %d\n",
 		rpc->crpc_service, libcfs_id2str(rpc->crpc_dest),
 		swi_state2str(rpc->crpc_wi.swi_state), why);
@@ -1332,12 +1341,12 @@ srpc_abort_rpc (srpc_client_rpc_t *rpc, int why)
 
 /* called with rpc->crpc_lock held */
 void
-srpc_post_rpc (srpc_client_rpc_t *rpc)
+srpc_post_rpc(srpc_client_rpc_t *rpc)
 {
-	LASSERT (!rpc->crpc_aborted);
-	LASSERT (srpc_data.rpc_state == SRPC_STATE_RUNNING);
+	LASSERT(!rpc->crpc_aborted);
+	LASSERT(srpc_data.rpc_state == SRPC_STATE_RUNNING);
 
-	CDEBUG (D_NET, "Posting RPC: peer %s, service %d, timeout %d\n",
+	CDEBUG(D_NET, "Posting RPC: peer %s, service %d, timeout %d\n",
 		libcfs_id2str(rpc->crpc_dest), rpc->crpc_service,
 		rpc->crpc_timeout);
 
@@ -1403,7 +1412,7 @@ srpc_lnet_ev_handler(lnet_event_t *ev)
 	srpc_msg_t	*msg;
 	srpc_msg_type_t    type;
 
-	LASSERT (!in_interrupt());
+	LASSERT(!in_interrupt());
 
 	if (ev->status != 0) {
 		spin_lock(&srpc_data.rpc_glock);
@@ -1417,7 +1426,7 @@ srpc_lnet_ev_handler(lnet_event_t *ev)
 	default:
 		CERROR("Unknown event: status %d, type %d, lnet %d\n",
 		       rpcev->ev_status, rpcev->ev_type, rpcev->ev_lnet);
-		LBUG ();
+		LBUG();
 	case SRPC_REQUEST_SENT:
 		if (ev->status == 0 && ev->type != LNET_EVENT_UNLINK) {
 			spin_lock(&srpc_data.rpc_glock);
@@ -1436,7 +1445,7 @@ srpc_lnet_ev_handler(lnet_event_t *ev)
 			       &crpc->crpc_replyev, &crpc->crpc_bulkev);
 			CERROR("Bad event: status %d, type %d, lnet %d\n",
 			       rpcev->ev_status, rpcev->ev_type, rpcev->ev_lnet);
-			LBUG ();
+			LBUG();
 		}
 
 		spin_lock(&crpc->crpc_lock);
@@ -1458,10 +1467,10 @@ srpc_lnet_ev_handler(lnet_event_t *ev)
 
 		spin_lock(&scd->scd_lock);
 
-		LASSERT (ev->unlinked);
-		LASSERT (ev->type == LNET_EVENT_PUT ||
+		LASSERT(ev->unlinked);
+		LASSERT(ev->type == LNET_EVENT_PUT ||
 			 ev->type == LNET_EVENT_UNLINK);
-		LASSERT (ev->type != LNET_EVENT_UNLINK ||
+		LASSERT(ev->type != LNET_EVENT_UNLINK ||
 			 sv->sv_shuttingdown);
 
 		buffer = container_of(ev->md.start, srpc_buffer_t, buf_msg);
@@ -1536,7 +1545,7 @@ srpc_lnet_ev_handler(lnet_event_t *ev)
 		break;
 
 	case SRPC_BULK_GET_RPLD:
-		LASSERT (ev->type == LNET_EVENT_SEND ||
+		LASSERT(ev->type == LNET_EVENT_SEND ||
 			 ev->type == LNET_EVENT_REPLY ||
 			 ev->type == LNET_EVENT_UNLINK);
 
@@ -1574,7 +1583,7 @@ srpc_lnet_ev_handler(lnet_event_t *ev)
 
 
 int
-srpc_startup (void)
+srpc_startup(void)
 {
 	int rc;
 
@@ -1590,7 +1599,7 @@ srpc_startup (void)
 
 	rc = LNetNIInit(LUSTRE_SRV_LNET_PID);
 	if (rc < 0) {
-		CERROR ("LNetNIInit() has failed: %d\n", rc);
+		CERROR("LNetNIInit() has failed: %d\n", rc);
 		return rc;
 	}
 
@@ -1622,7 +1631,7 @@ bail:
 }
 
 void
-srpc_shutdown (void)
+srpc_shutdown(void)
 {
 	int i;
 	int rc;
@@ -1633,14 +1642,14 @@ srpc_shutdown (void)
 
 	switch (state) {
 	default:
-		LBUG ();
+		LBUG();
 	case SRPC_STATE_RUNNING:
 		spin_lock(&srpc_data.rpc_glock);
 
 		for (i = 0; i <= SRPC_SERVICE_MAX_ID; i++) {
 			srpc_service_t *sv = srpc_data.rpc_services[i];
 
-			LASSERTF (sv == NULL,
+			LASSERTF(sv == NULL,
 				  "service not empty: id %d, name %s\n",
 				  i, sv->sv_name);
 		}
@@ -1652,9 +1661,9 @@ srpc_shutdown (void)
 	case SRPC_STATE_EQ_INIT:
 		rc = LNetClearLazyPortal(SRPC_FRAMEWORK_REQUEST_PORTAL);
 		rc = LNetClearLazyPortal(SRPC_REQUEST_PORTAL);
-		LASSERT (rc == 0);
+		LASSERT(rc == 0);
 		rc = LNetEQFree(srpc_data.rpc_lnet_eq);
-		LASSERT (rc == 0); /* the EQ should have no user by now */
+		LASSERT(rc == 0); /* the EQ should have no user by now */
 
 	case SRPC_STATE_NI_INIT:
 		LNetNIFini();
diff --git a/drivers/staging/lustre/lustre/fid/lproc_fid.c b/drivers/staging/lustre/lustre/fid/lproc_fid.c
index 6a21f07..783939d 100644
--- a/drivers/staging/lustre/lustre/fid/lproc_fid.c
+++ b/drivers/staging/lustre/lustre/fid/lproc_fid.c
@@ -120,15 +120,14 @@ static int
 lprocfs_fid_space_seq_show(struct seq_file *m, void *unused)
 {
 	struct lu_client_seq *seq = (struct lu_client_seq *)m->private;
-	int rc;
 
 	LASSERT(seq != NULL);
 
 	mutex_lock(&seq->lcs_mutex);
-	rc = seq_printf(m, "[%#llx - %#llx]:%x:%s\n", PRANGE(&seq->lcs_space));
+	seq_printf(m, "[%#llx - %#llx]:%x:%s\n", PRANGE(&seq->lcs_space));
 	mutex_unlock(&seq->lcs_mutex);
 
-	return rc;
+	return 0;
 }
 
 static ssize_t lprocfs_fid_width_seq_write(struct file *file,
@@ -170,30 +169,28 @@ static int
 lprocfs_fid_width_seq_show(struct seq_file *m, void *unused)
 {
 	struct lu_client_seq *seq = (struct lu_client_seq *)m->private;
-	int rc;
 
 	LASSERT(seq != NULL);
 
 	mutex_lock(&seq->lcs_mutex);
-	rc = seq_printf(m, "%llu\n", seq->lcs_width);
+	seq_printf(m, "%llu\n", seq->lcs_width);
 	mutex_unlock(&seq->lcs_mutex);
 
-	return rc;
+	return 0;
 }
 
 static int
 lprocfs_fid_fid_seq_show(struct seq_file *m, void *unused)
 {
 	struct lu_client_seq *seq = (struct lu_client_seq *)m->private;
-	int rc;
 
 	LASSERT(seq != NULL);
 
 	mutex_lock(&seq->lcs_mutex);
-	rc = seq_printf(m, DFID"\n", PFID(&seq->lcs_fid));
+	seq_printf(m, DFID "\n", PFID(&seq->lcs_fid));
 	mutex_unlock(&seq->lcs_mutex);
 
-	return rc;
+	return 0;
 }
 
 static int
@@ -201,17 +198,17 @@ lprocfs_fid_server_seq_show(struct seq_file *m, void *unused)
 {
 	struct lu_client_seq *seq = (struct lu_client_seq *)m->private;
 	struct client_obd *cli;
-	int rc;
 
 	LASSERT(seq != NULL);
 
 	if (seq->lcs_exp != NULL) {
 		cli = &seq->lcs_exp->exp_obd->u.cli;
-		rc = seq_printf(m, "%s\n", cli->cl_target_uuid.uuid);
+		seq_printf(m, "%s\n", cli->cl_target_uuid.uuid);
 	} else {
-		rc = seq_printf(m, "%s\n", seq->lcs_srv->lss_name);
+		seq_printf(m, "%s\n", seq->lcs_srv->lss_name);
 	}
-	return rc;
+
+	return 0;
 }
 
 LPROC_SEQ_FOPS(lprocfs_fid_space);
diff --git a/drivers/staging/lustre/lustre/fld/fld_internal.h b/drivers/staging/lustre/lustre/fld/fld_internal.h
index 6125bbe..68bec765 100644
--- a/drivers/staging/lustre/lustre/fld/fld_internal.h
+++ b/drivers/staging/lustre/lustre/fld/fld_internal.h
@@ -142,7 +142,7 @@ extern struct lu_fld_hash fld_hash[];
 int fld_client_rpc(struct obd_export *exp,
 		   struct lu_seq_range *range, __u32 fld_op);
 
-#if defined (CONFIG_PROC_FS)
+#if defined(CONFIG_PROC_FS)
 extern struct lprocfs_vars fld_client_proc_list[];
 #endif
 
diff --git a/drivers/staging/lustre/lustre/fld/fld_request.c b/drivers/staging/lustre/lustre/fld/fld_request.c
index b8d17e1..6ac225e 100644
--- a/drivers/staging/lustre/lustre/fld/fld_request.c
+++ b/drivers/staging/lustre/lustre/fld/fld_request.c
@@ -217,10 +217,9 @@ int fld_client_add_target(struct lu_client_fld *fld,
 		CERROR("%s: Attempt to add target %s (idx %llu) on fly - skip it\n",
 			fld->lcf_name, name, tar->ft_idx);
 		return 0;
-	} else {
-		CDEBUG(D_INFO, "%s: Adding target %s (idx %llu)\n",
-		       fld->lcf_name, name, tar->ft_idx);
 	}
+	CDEBUG(D_INFO, "%s: Adding target %s (idx %llu)\n",
+			fld->lcf_name, name, tar->ft_idx);
 
 	OBD_ALLOC_PTR(target);
 	if (target == NULL)
@@ -280,7 +279,7 @@ EXPORT_SYMBOL(fld_client_del_target);
 
 static struct proc_dir_entry *fld_type_proc_dir;
 
-#if defined (CONFIG_PROC_FS)
+#if defined(CONFIG_PROC_FS)
 static int fld_client_proc_init(struct lu_client_fld *fld)
 {
 	int rc;
@@ -327,7 +326,6 @@ static int fld_client_proc_init(struct lu_client_fld *fld)
 
 void fld_client_proc_fini(struct lu_client_fld *fld)
 {
-	return;
 }
 #endif
 EXPORT_SYMBOL(fld_client_proc_fini);
diff --git a/drivers/staging/lustre/lustre/fld/lproc_fld.c b/drivers/staging/lustre/lustre/fld/lproc_fld.c
index 8c5a657..f53fdcf 100644
--- a/drivers/staging/lustre/lustre/fld/lproc_fld.c
+++ b/drivers/staging/lustre/lustre/fld/lproc_fld.c
@@ -168,4 +168,5 @@ struct lprocfs_vars fld_client_proc_list[] = {
 	{ "targets", &fld_proc_targets_fops },
 	{ "hash", &fld_proc_hash_fops },
 	{ "cache_flush", &fld_proc_cache_flush_fops },
-	{ NULL }};
+	{ NULL }
+};
diff --git a/drivers/staging/lustre/lustre/include/lprocfs_status.h b/drivers/staging/lustre/lustre/include/lprocfs_status.h
index 8a25cf6..d030847 100644
--- a/drivers/staging/lustre/lustre/include/lprocfs_status.h
+++ b/drivers/staging/lustre/lustre/include/lprocfs_status.h
@@ -679,7 +679,7 @@ extern int lprocfs_seq_release(struct inode *, struct file *);
 	}				       \
 } while (0)
 #define LPROCFS_CLIMP_EXIT(obd)		 \
-	up_read(&(obd)->u.cli.cl_sem);
+	up_read(&(obd)->u.cli.cl_sem)
 
 
 /* write the name##_seq_show function, call LPROC_SEQ_FOPS_RO for read-only
@@ -723,7 +723,7 @@ static struct file_operations name##_fops = {				\
 		return lprocfs_wr_##type(file, buffer,			\
 					 count, seq->private);		\
 	}								\
-	LPROC_SEQ_FOPS(name##_##type);
+	LPROC_SEQ_FOPS(name##_##type)
 
 #define LPROC_SEQ_FOPS_WR_ONLY(name, type)				\
 	static ssize_t name##_##type##_write(struct file *file,		\
@@ -740,7 +740,7 @@ static struct file_operations name##_fops = {				\
 		.open	= name##_##type##_open,				\
 		.write	= name##_##type##_write,			\
 		.release = lprocfs_single_release,			\
-	};
+	}
 
 /* lproc_ptlrpc.c */
 struct ptlrpc_request;
diff --git a/drivers/staging/lustre/lustre/include/lu_object.h b/drivers/staging/lustre/lustre/include/lu_object.h
index 2ddb2b0..c8cc48f 100644
--- a/drivers/staging/lustre/lustre/include/lu_object.h
+++ b/drivers/staging/lustre/lustre/include/lu_object.h
@@ -192,7 +192,7 @@ struct lu_object_conf {
  */
 typedef int (*lu_printer_t)(const struct lu_env *env,
 			    void *cookie, const char *format, ...)
-	__attribute__ ((format (printf, 3, 4)));
+	__printf(3, 4);
 
 /**
  * Operations specific for particular lu_object.
diff --git a/drivers/staging/lustre/lustre/include/lustre_dlm.h b/drivers/staging/lustre/lustre/include/lustre_dlm.h
index 83bc0a9..bac9902 100644
--- a/drivers/staging/lustre/lustre/include/lustre_dlm.h
+++ b/drivers/staging/lustre/lustre/include/lustre_dlm.h
@@ -1075,7 +1075,7 @@ extern char *ldlm_it2str(int it);
 void _ldlm_lock_debug(struct ldlm_lock *lock,
 		      struct libcfs_debug_msg_data *data,
 		      const char *fmt, ...)
-	__attribute__ ((format (printf, 3, 4)));
+	__printf(3, 4);
 
 /**
  * Rate-limited version of lock printing function.
diff --git a/drivers/staging/lustre/lustre/include/lustre_import.h b/drivers/staging/lustre/lustre/include/lustre_import.h
index 51f3e98..dcc8076 100644
--- a/drivers/staging/lustre/lustre/include/lustre_import.h
+++ b/drivers/staging/lustre/lustre/include/lustre_import.h
@@ -218,6 +218,8 @@ struct obd_import {
 	atomic_t	      imp_timeouts;
 	/** Current import state */
 	enum lustre_imp_state     imp_state;
+	/** Last replay state */
+	enum lustre_imp_state	  imp_replay_state;
 	/** History of import states */
 	struct import_state_hist  imp_state_hist[IMP_STATE_HIST_LEN];
 	int		       imp_state_hist_idx;
diff --git a/drivers/staging/lustre/lustre/include/lustre_net.h b/drivers/staging/lustre/lustre/include/lustre_net.h
index 36396d1..e2805bd 100644
--- a/drivers/staging/lustre/lustre/include/lustre_net.h
+++ b/drivers/staging/lustre/lustre/include/lustre_net.h
@@ -1673,7 +1673,7 @@ ptlrpc_rqphase2str(struct ptlrpc_request *req)
 
 void _debug_req(struct ptlrpc_request *req,
 		struct libcfs_debug_msg_data *data, const char *fmt, ...)
-	__attribute__ ((format (printf, 3, 4)));
+	__printf(3, 4);
 
 /**
  * Helper that decides if we need to print request according to current debug
diff --git a/drivers/staging/lustre/lustre/include/obd_class.h b/drivers/staging/lustre/lustre/include/obd_class.h
index 4a29261..34b5fa3 100644
--- a/drivers/staging/lustre/lustre/include/obd_class.h
+++ b/drivers/staging/lustre/lustre/include/obd_class.h
@@ -72,6 +72,7 @@ extern int lustre_get_jobid(char *jobid);
 struct lu_device_type;
 
 /* genops.c */
+extern struct list_head obd_types;
 struct obd_export *class_conn2export(struct lustre_handle *);
 int class_register_type(struct obd_ops *, struct md_ops *,
 			struct lprocfs_vars *, const char *nm,
@@ -222,20 +223,20 @@ extern void (*class_export_dump_hook)(struct obd_export *);
 
 #endif
 
-#define class_export_rpc_inc(exp)				       \
-({								      \
-	atomic_inc(&(exp)->exp_rpc_count);			  \
-	CDEBUG(D_INFO, "RPC GETting export %p : new rpc_count %d\n",    \
-	       (exp), atomic_read(&(exp)->exp_rpc_count));	  \
-})
+static inline void class_export_rpc_inc(struct obd_export *exp)
+{
+	atomic_inc(&(exp)->exp_rpc_count);
+	CDEBUG(D_INFO, "RPC GETting export %p : new rpc_count %d\n",
+	       (exp), atomic_read(&(exp)->exp_rpc_count));
+}
 
-#define class_export_rpc_dec(exp)				       \
-({								      \
-	LASSERT_ATOMIC_POS(&exp->exp_rpc_count);			\
-	atomic_dec(&(exp)->exp_rpc_count);			  \
-	CDEBUG(D_INFO, "RPC PUTting export %p : new rpc_count %d\n",    \
-	       (exp), atomic_read(&(exp)->exp_rpc_count));	  \
-})
+static inline void class_export_rpc_dec(struct obd_export *exp)
+{
+	LASSERT_ATOMIC_POS(&exp->exp_rpc_count);
+	atomic_dec(&(exp)->exp_rpc_count);
+	CDEBUG(D_INFO, "RPC PUTting export %p : new rpc_count %d\n",
+	       (exp), atomic_read(&(exp)->exp_rpc_count));
+}
 
 #define class_export_lock_get(exp, lock)				\
 ({								      \
@@ -332,25 +333,29 @@ void obdo_le_to_cpu(struct obdo *dobdo, struct obdo *sobdo);
 
 /* Ensure obd_setup: used for cleanup which must be called
    while obd is stopping */
-#define OBD_CHECK_DEV(obd)				      \
-do {							    \
-	if (!(obd)) {					   \
-		CERROR("NULL device\n");			\
-		return -ENODEV;				\
-	}						       \
-} while (0)
+static inline int obd_check_dev(struct obd_device *obd)
+{
+	if (!obd) {
+		CERROR("NULL device\n");
+		return -ENODEV;
+	}
+	return 0;
+}
 
 /* ensure obd_setup and !obd_stopping */
-#define OBD_CHECK_DEV_ACTIVE(obd)			       \
-do {							    \
-	OBD_CHECK_DEV(obd);				     \
-	if (!(obd)->obd_set_up || (obd)->obd_stopping) {	\
-		CERROR("Device %d not setup\n",		 \
-		       (obd)->obd_minor);		       \
-		return -ENODEV;				\
-	}						       \
-} while (0)
+static inline int obd_check_dev_active(struct obd_device *obd)
+{
+	int rc;
 
+	rc = obd_check_dev(obd);
+	if (rc)
+		return rc;
+	if (!obd->obd_set_up || obd->obd_stopping) {
+		CERROR("Device %d not setup\n", obd->obd_minor);
+		return -ENODEV;
+	}
+	return rc;
+}
 
 #if defined (CONFIG_PROC_FS)
 #define OBD_COUNTER_OFFSET(op)				  \
@@ -593,7 +598,9 @@ static inline int obd_precleanup(struct obd_device *obd,
 	int rc;
 	DECLARE_LU_VARS(ldt, d);
 
-	OBD_CHECK_DEV(obd);
+	rc = obd_check_dev(obd);
+	if (rc)
+		return rc;
 	ldt = obd->obd_type->typ_lu;
 	d = obd->obd_lu_dev;
 	if (ldt != NULL && d != NULL) {
@@ -619,7 +626,9 @@ static inline int obd_cleanup(struct obd_device *obd)
 	int rc;
 	DECLARE_LU_VARS(ldt, d);
 
-	OBD_CHECK_DEV(obd);
+	rc = obd_check_dev(obd);
+	if (rc)
+		return rc;
 
 	ldt = obd->obd_type->typ_lu;
 	d = obd->obd_lu_dev;
@@ -667,7 +676,9 @@ obd_process_config(struct obd_device *obd, int datalen, void *data)
 	int rc;
 	DECLARE_LU_VARS(ldt, d);
 
-	OBD_CHECK_DEV(obd);
+	rc = obd_check_dev(obd);
+	if (rc)
+		return rc;
 
 	obd->obd_process_conf = 1;
 	ldt = obd->obd_type->typ_lu;
@@ -885,7 +896,9 @@ static inline int obd_add_conn(struct obd_import *imp, struct obd_uuid *uuid,
 	struct obd_device *obd = imp->imp_obd;
 	int rc;
 
-	OBD_CHECK_DEV_ACTIVE(obd);
+	rc = obd_check_dev_active(obd);
+	if (rc)
+		return rc;
 	OBD_CHECK_DT_OP(obd, add_conn, -EOPNOTSUPP);
 	OBD_COUNTER_INCREMENT(obd, add_conn);
 
@@ -898,7 +911,9 @@ static inline int obd_del_conn(struct obd_import *imp, struct obd_uuid *uuid)
 	struct obd_device *obd = imp->imp_obd;
 	int rc;
 
-	OBD_CHECK_DEV_ACTIVE(obd);
+	rc = obd_check_dev_active(obd);
+	if (rc)
+		return rc;
 	OBD_CHECK_DT_OP(obd, del_conn, -EOPNOTSUPP);
 	OBD_COUNTER_INCREMENT(obd, del_conn);
 
@@ -932,7 +947,9 @@ static inline int obd_connect(const struct lu_env *env,
 	__u64 ocf = data ? data->ocd_connect_flags : 0; /* for post-condition
 						   * check */
 
-	OBD_CHECK_DEV_ACTIVE(obd);
+	rc = obd_check_dev_active(obd);
+	if (rc)
+		return rc;
 	OBD_CHECK_DT_OP(obd, connect, -EOPNOTSUPP);
 	OBD_COUNTER_INCREMENT(obd, connect);
 
@@ -954,7 +971,9 @@ static inline int obd_reconnect(const struct lu_env *env,
 	__u64 ocf = d ? d->ocd_connect_flags : 0; /* for post-condition
 						   * check */
 
-	OBD_CHECK_DEV_ACTIVE(obd);
+	rc = obd_check_dev_active(obd);
+	if (rc)
+		return rc;
 	OBD_CHECK_DT_OP(obd, reconnect, 0);
 	OBD_COUNTER_INCREMENT(obd, reconnect);
 
@@ -1279,7 +1298,9 @@ static inline int obd_notify(struct obd_device *obd,
 {
 	int rc;
 
-	OBD_CHECK_DEV(obd);
+	rc = obd_check_dev(obd);
+	if (rc)
+		return rc;
 
 	/* the check for async_recov is a complete hack - I'm hereby
 	   overloading the meaning to also mean "this was called from
@@ -1380,7 +1401,11 @@ static inline int obd_health_check(const struct lu_env *env,
 static inline int obd_register_observer(struct obd_device *obd,
 					struct obd_device *observer)
 {
-	OBD_CHECK_DEV(obd);
+	int rc;
+
+	rc = obd_check_dev(obd);
+	if (rc)
+		return rc;
 	down_write(&obd->obd_observer_link_sem);
 	if (obd->obd_observer && observer) {
 		up_write(&obd->obd_observer_link_sem);
@@ -1895,6 +1920,8 @@ void class_exit_uuidlist(void);
 
 /* class_obd.c */
 extern char obd_jobid_node[];
+extern struct miscdevice obd_psdev;
+extern spinlock_t obd_types_lock;
 
 /* prng.c */
 #define ll_generate_random_uuid(uuid_out) cfs_get_random_bytes(uuid_out, sizeof(class_uuid_t))
diff --git a/drivers/staging/lustre/lustre/lclient/lcommon_cl.c b/drivers/staging/lustre/lustre/lclient/lcommon_cl.c
index 23095bb..ab6cb41 100644
--- a/drivers/staging/lustre/lustre/lclient/lcommon_cl.c
+++ b/drivers/staging/lustre/lustre/lclient/lcommon_cl.c
@@ -828,7 +828,8 @@ int ccc_prep_size(const struct lu_env *env, struct cl_object *obj,
 				 * --bug 17336 */
 				loff_t size = cl_isize_read(inode);
 				loff_t cur_index = start >> PAGE_CACHE_SHIFT;
-				loff_t size_index = ((size - 1) >> PAGE_CACHE_SHIFT);
+				loff_t size_index = (size - 1) >>
+						    PAGE_CACHE_SHIFT;
 
 				if ((size == 0 && cur_index != 0) ||
 				    size_index < cur_index)
@@ -1263,7 +1264,7 @@ __u32 cl_fid_build_gen(const struct lu_fid *fid)
 		return gen;
 	}
 
-	gen = (fid_flatten(fid) >> 32);
+	gen = fid_flatten(fid) >> 32;
 	return gen;
 }
 
diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_extent.c b/drivers/staging/lustre/lustre/ldlm/ldlm_extent.c
index a89eeba..fd9b059 100644
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_extent.c
+++ b/drivers/staging/lustre/lustre/ldlm/ldlm_extent.c
@@ -151,7 +151,8 @@ static inline int lock_mode_to_index(ldlm_mode_t mode)
 
 	LASSERT(mode != 0);
 	LASSERT(IS_PO2(mode));
-	for (index = -1; mode; index++, mode >>= 1) ;
+	for (index = -1; mode; index++)
+		mode >>= 1;
 	LASSERT(index < LCK_MODE_NUM);
 	return index;
 }
diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_internal.h b/drivers/staging/lustre/lustre/ldlm/ldlm_internal.h
index 20e64cd..70b909f 100644
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_internal.h
+++ b/drivers/staging/lustre/lustre/ldlm/ldlm_internal.h
@@ -131,12 +131,12 @@ struct ldlm_cb_set_arg {
 	union ldlm_gl_desc		*gl_desc; /* glimpse AST descriptor */
 };
 
-typedef enum {
+enum ldlm_desc_ast_t {
 	LDLM_WORK_BL_AST,
 	LDLM_WORK_CP_AST,
 	LDLM_WORK_REVOKE_AST,
 	LDLM_WORK_GL_AST
-} ldlm_desc_ast_t;
+};
 
 void ldlm_grant_lock(struct ldlm_lock *lock, struct list_head *work_list);
 int ldlm_fill_lvb(struct ldlm_lock *lock, struct req_capsule *pill,
@@ -155,7 +155,7 @@ void ldlm_lock_decref_internal_nolock(struct ldlm_lock *, __u32 mode);
 void ldlm_add_ast_work_item(struct ldlm_lock *lock, struct ldlm_lock *new,
 			    struct list_head *work_list);
 int ldlm_run_ast_work(struct ldlm_namespace *ns, struct list_head *rpc_list,
-		      ldlm_desc_ast_t ast_type);
+		      enum ldlm_desc_ast_t ast_type);
 int ldlm_work_gl_ast_lock(struct ptlrpc_request_set *rqset, void *opaq);
 int ldlm_lock_remove_from_lru(struct ldlm_lock *lock);
 int ldlm_lock_remove_from_lru_nolock(struct ldlm_lock *lock);
@@ -177,6 +177,10 @@ int ldlm_bl_to_thread_list(struct ldlm_namespace *ns,
 void ldlm_handle_bl_callback(struct ldlm_namespace *ns,
 			     struct ldlm_lock_desc *ld, struct ldlm_lock *lock);
 
+extern struct kmem_cache *ldlm_resource_slab;
+
+/* ldlm_lockd.c & ldlm_lock.c */
+extern struct kmem_cache *ldlm_lock_slab;
 
 /* ldlm_extent.c */
 void ldlm_extent_add_lock(struct ldlm_resource *res, struct ldlm_lock *lock);
@@ -207,9 +211,9 @@ struct ldlm_state {
 /* interval tree, for LDLM_EXTENT. */
 extern struct kmem_cache *ldlm_interval_slab; /* slab cache for ldlm_interval */
 extern void ldlm_interval_attach(struct ldlm_interval *n, struct ldlm_lock *l);
-extern struct ldlm_interval *ldlm_interval_detach(struct ldlm_lock *l);
-extern struct ldlm_interval *ldlm_interval_alloc(struct ldlm_lock *lock);
-extern void ldlm_interval_free(struct ldlm_interval *node);
+struct ldlm_interval *ldlm_interval_detach(struct ldlm_lock *l);
+struct ldlm_interval *ldlm_interval_alloc(struct ldlm_lock *lock);
+void ldlm_interval_free(struct ldlm_interval *node);
 /* this function must be called with res lock held */
 static inline struct ldlm_extent *
 ldlm_interval_extent(struct ldlm_interval *node)
diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_lock.c b/drivers/staging/lustre/lustre/ldlm/ldlm_lock.c
index 8191005..84b111e 100644
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_lock.c
+++ b/drivers/staging/lustre/lustre/ldlm/ldlm_lock.c
@@ -151,8 +151,6 @@ char *ldlm_it2str(int it)
 }
 EXPORT_SYMBOL(ldlm_it2str);
 
-extern struct kmem_cache *ldlm_lock_slab;
-
 
 void ldlm_register_intent(struct ldlm_namespace *ns, ldlm_res_policy arg)
 {
@@ -1805,7 +1803,7 @@ int ldlm_work_gl_ast_lock(struct ptlrpc_request_set *rqset, void *opaq)
  * one.
  */
 int ldlm_run_ast_work(struct ldlm_namespace *ns, struct list_head *rpc_list,
-		      ldlm_desc_ast_t ast_type)
+		      enum ldlm_desc_ast_t ast_type)
 {
 	struct ldlm_cb_set_arg *arg;
 	set_producer_func       work_ast_lock;
diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_lockd.c b/drivers/staging/lustre/lustre/ldlm/ldlm_lockd.c
index 98fbd3f..08a91f5 100644
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_lockd.c
+++ b/drivers/staging/lustre/lustre/ldlm/ldlm_lockd.c
@@ -55,8 +55,6 @@ static char *ldlm_cpts;
 module_param(ldlm_cpts, charp, 0444);
 MODULE_PARM_DESC(ldlm_cpts, "CPU partitions ldlm threads should run on");
 
-extern struct kmem_cache *ldlm_resource_slab;
-extern struct kmem_cache *ldlm_lock_slab;
 static struct mutex	ldlm_ref_mutex;
 static int ldlm_refcount;
 
@@ -154,7 +152,7 @@ void ldlm_handle_bl_callback(struct ldlm_namespace *ns,
 	if (lock->l_flags & LDLM_FL_CANCEL_ON_BLOCK)
 		lock->l_flags |= LDLM_FL_CANCEL;
 
-	do_ast = (!lock->l_readers && !lock->l_writers);
+	do_ast = !lock->l_readers && !lock->l_writers;
 	unlock_res_and_lock(lock);
 
 	if (do_ast) {
diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_pool.c b/drivers/staging/lustre/lustre/ldlm/ldlm_pool.c
index d20d277..a9f4833 100644
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_pool.c
+++ b/drivers/staging/lustre/lustre/ldlm/ldlm_pool.c
@@ -141,8 +141,6 @@
  */
 #define LDLM_POOL_SLV_SHIFT (10)
 
-extern struct proc_dir_entry *ldlm_ns_proc_dir;
-
 static inline __u64 dru(__u64 val, __u32 shift, int round_up)
 {
 	return (val + (round_up ? (1 << shift) - 1 : 0)) >> shift;
@@ -689,8 +687,8 @@ static int lprocfs_pool_state_seq_show(struct seq_file *m, void *unused)
 			      "  GP:  %d\n",
 			      grant_step, grant_plan);
 	}
-	seq_printf(m, "  GR:  %d\n" "  CR:  %d\n" "  GS:  %d\n"
-		      "  G:   %d\n" "  L:   %d\n",
+	seq_printf(m, "  GR:  %d\n  CR:  %d\n  GS:  %d\n"
+		      "  G:   %d\n  L:   %d\n",
 		      grant_rate, cancel_rate, grant_speed,
 		      granted, limit);
 
diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_request.c b/drivers/staging/lustre/lustre/ldlm/ldlm_request.c
index 287da32..4f71318 100644
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_request.c
+++ b/drivers/staging/lustre/lustre/ldlm/ldlm_request.c
@@ -307,7 +307,7 @@ int ldlm_blocking_ast_nocheck(struct ldlm_lock *lock)
 	int do_ast;
 
 	lock->l_flags |= LDLM_FL_CBPENDING;
-	do_ast = (!lock->l_readers && !lock->l_writers);
+	do_ast = !lock->l_readers && !lock->l_writers;
 	unlock_res_and_lock(lock);
 
 	if (do_ast) {
@@ -1779,7 +1779,6 @@ int ldlm_cancel_resource_local(struct ldlm_resource *res,
 		if (opaque != NULL && lock->l_ast_data != opaque) {
 			LDLM_ERROR(lock, "data %p doesn't match opaque %p",
 				   lock->l_ast_data, opaque);
-			//LBUG();
 			continue;
 		}
 
diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_resource.c b/drivers/staging/lustre/lustre/ldlm/ldlm_resource.c
index c6f62a9..f750d42 100644
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_resource.c
+++ b/drivers/staging/lustre/lustre/ldlm/ldlm_resource.c
@@ -62,7 +62,7 @@ LIST_HEAD(ldlm_cli_active_namespace_list);
 LIST_HEAD(ldlm_cli_inactive_namespace_list);
 
 struct proc_dir_entry *ldlm_type_proc_dir = NULL;
-struct proc_dir_entry *ldlm_ns_proc_dir = NULL;
+static struct proc_dir_entry *ldlm_ns_proc_dir = NULL;
 struct proc_dir_entry *ldlm_svc_proc_dir = NULL;
 
 extern unsigned int ldlm_cancel_unused_locks_before_replay;
diff --git a/drivers/staging/lustre/lustre/libcfs/Makefile b/drivers/staging/lustre/lustre/libcfs/Makefile
index fcecbd2..2996a48 100644
--- a/drivers/staging/lustre/lustre/libcfs/Makefile
+++ b/drivers/staging/lustre/lustre/libcfs/Makefile
@@ -3,7 +3,7 @@ obj-$(CONFIG_LUSTRE_FS) += libcfs.o
 libcfs-linux-objs := linux-tracefile.o linux-debug.o
 libcfs-linux-objs += linux-prim.o linux-cpu.o
 libcfs-linux-objs += linux-tcpip.o
-libcfs-linux-objs += linux-proc.o linux-curproc.o
+libcfs-linux-objs += linux-curproc.o
 libcfs-linux-objs += linux-module.o
 libcfs-linux-objs += linux-crypto.o
 libcfs-linux-objs += linux-crypto-adler.o
diff --git a/drivers/staging/lustre/lustre/libcfs/debug.c b/drivers/staging/lustre/lustre/libcfs/debug.c
index 76c62e8..021c92f 100644
--- a/drivers/staging/lustre/lustre/libcfs/debug.c
+++ b/drivers/staging/lustre/lustre/libcfs/debug.c
@@ -409,8 +409,8 @@ int libcfs_debug_init(unsigned long bufsize)
 	if (max > cfs_trace_max_debug_mb() || max < num_possible_cpus()) {
 		max = TCD_MAX_PAGES;
 	} else {
-		max = (max / num_possible_cpus());
-		max = max << (20 - PAGE_CACHE_SHIFT);
+		max = max / num_possible_cpus();
+		max <<= (20 - PAGE_CACHE_SHIFT);
 	}
 	rc = cfs_tracefile_init(max);
 
diff --git a/drivers/staging/lustre/lustre/libcfs/hash.c b/drivers/staging/lustre/lustre/libcfs/hash.c
index ec3a2a8..a55567e 100644
--- a/drivers/staging/lustre/lustre/libcfs/hash.c
+++ b/drivers/staging/lustre/lustre/libcfs/hash.c
@@ -2008,13 +2008,10 @@ void cfs_hash_rehash_key(struct cfs_hash *hs, const void *old_key,
 }
 EXPORT_SYMBOL(cfs_hash_rehash_key);
 
-int cfs_hash_debug_header(struct seq_file *m)
+void cfs_hash_debug_header(struct seq_file *m)
 {
-	return seq_printf(m, "%-*s%6s%6s%6s%6s%6s%6s%6s%7s%8s%8s%8s%s\n",
-		 CFS_HASH_BIGNAME_LEN,
-		 "name", "cur", "min", "max", "theta", "t-min", "t-max",
-		 "flags", "rehash", "count", "maxdep", "maxdepb",
-		 " distribution");
+	seq_printf(m, "%-*s   cur   min   max theta t-min t-max flags rehash   count  maxdep maxdepb distribution\n",
+		   CFS_HASH_BIGNAME_LEN, "name");
 }
 EXPORT_SYMBOL(cfs_hash_debug_header);
 
@@ -2042,7 +2039,7 @@ cfs_hash_full_nbkt(struct cfs_hash *hs)
 	       CFS_HASH_RH_NBKT(hs) : CFS_HASH_NBKT(hs);
 }
 
-int cfs_hash_debug_str(struct cfs_hash *hs, struct seq_file *m)
+void cfs_hash_debug_str(struct cfs_hash *hs, struct seq_file *m)
 {
 	int		    dist[8] = { 0, };
 	int		    maxdep  = -1;
@@ -2097,7 +2094,5 @@ int cfs_hash_debug_str(struct cfs_hash *hs, struct seq_file *m)
 		seq_printf(m, "%d%c",  dist[i], (i == 7) ? '\n' : '/');
 
 	cfs_hash_unlock(hs, 0);
-
-	return 0;
 }
 EXPORT_SYMBOL(cfs_hash_debug_str);
diff --git a/drivers/staging/lustre/lustre/libcfs/linux/linux-cpu.c b/drivers/staging/lustre/lustre/libcfs/linux/linux-cpu.c
index 05f7595..cc3ab35 100644
--- a/drivers/staging/lustre/lustre/libcfs/linux/linux-cpu.c
+++ b/drivers/staging/lustre/lustre/libcfs/linux/linux-cpu.c
@@ -204,7 +204,7 @@ cfs_cpt_table_print(struct cfs_cpt_table *cptab, char *buf, int len)
 		}
 
 		tmp += rc;
-		for_each_cpu_mask(j, *cptab->ctb_parts[i].cpt_cpumask) {
+		for_each_cpu(j, cptab->ctb_parts[i].cpt_cpumask) {
 			rc = snprintf(tmp, len, "%d ", j);
 			len -= rc;
 			if (len <= 0) {
@@ -240,8 +240,8 @@ cfs_cpt_weight(struct cfs_cpt_table *cptab, int cpt)
 	LASSERT(cpt == CFS_CPT_ANY || (cpt >= 0 && cpt < cptab->ctb_nparts));
 
 	return cpt == CFS_CPT_ANY ?
-	       cpus_weight(*cptab->ctb_cpumask) :
-	       cpus_weight(*cptab->ctb_parts[cpt].cpt_cpumask);
+	       cpumask_weight(cptab->ctb_cpumask) :
+	       cpumask_weight(cptab->ctb_parts[cpt].cpt_cpumask);
 }
 EXPORT_SYMBOL(cfs_cpt_weight);
 
@@ -251,8 +251,10 @@ cfs_cpt_online(struct cfs_cpt_table *cptab, int cpt)
 	LASSERT(cpt == CFS_CPT_ANY || (cpt >= 0 && cpt < cptab->ctb_nparts));
 
 	return cpt == CFS_CPT_ANY ?
-	       any_online_cpu(*cptab->ctb_cpumask) != NR_CPUS :
-	       any_online_cpu(*cptab->ctb_parts[cpt].cpt_cpumask) != NR_CPUS;
+	       cpumask_any_and(cptab->ctb_cpumask,
+			       cpu_online_mask) < nr_cpu_ids :
+	       cpumask_any_and(cptab->ctb_parts[cpt].cpt_cpumask,
+			       cpu_online_mask) < nr_cpu_ids;
 }
 EXPORT_SYMBOL(cfs_cpt_online);
 
@@ -283,7 +285,7 @@ cfs_cpt_set_cpu(struct cfs_cpt_table *cptab, int cpt, int cpu)
 
 	LASSERT(cpt >= 0 && cpt < cptab->ctb_nparts);
 
-	if (cpu < 0 || cpu >= NR_CPUS || !cpu_online(cpu)) {
+	if (cpu < 0 || cpu >= nr_cpu_ids || !cpu_online(cpu)) {
 		CDEBUG(D_INFO, "CPU %d is invalid or it's offline\n", cpu);
 		return 0;
 	}
@@ -296,11 +298,11 @@ cfs_cpt_set_cpu(struct cfs_cpt_table *cptab, int cpt, int cpu)
 
 	cptab->ctb_cpu2cpt[cpu] = cpt;
 
-	LASSERT(!cpu_isset(cpu, *cptab->ctb_cpumask));
-	LASSERT(!cpu_isset(cpu, *cptab->ctb_parts[cpt].cpt_cpumask));
+	LASSERT(!cpumask_test_cpu(cpu, cptab->ctb_cpumask));
+	LASSERT(!cpumask_test_cpu(cpu, cptab->ctb_parts[cpt].cpt_cpumask));
 
-	cpu_set(cpu, *cptab->ctb_cpumask);
-	cpu_set(cpu, *cptab->ctb_parts[cpt].cpt_cpumask);
+	cpumask_set_cpu(cpu, cptab->ctb_cpumask);
+	cpumask_set_cpu(cpu, cptab->ctb_parts[cpt].cpt_cpumask);
 
 	node = cpu_to_node(cpu);
 
@@ -324,7 +326,7 @@ cfs_cpt_unset_cpu(struct cfs_cpt_table *cptab, int cpt, int cpu)
 
 	LASSERT(cpt == CFS_CPT_ANY || (cpt >= 0 && cpt < cptab->ctb_nparts));
 
-	if (cpu < 0 || cpu >= NR_CPUS) {
+	if (cpu < 0 || cpu >= nr_cpu_ids) {
 		CDEBUG(D_INFO, "Invalid CPU id %d\n", cpu);
 		return;
 	}
@@ -344,11 +346,11 @@ cfs_cpt_unset_cpu(struct cfs_cpt_table *cptab, int cpt, int cpu)
 		return;
 	}
 
-	LASSERT(cpu_isset(cpu, *cptab->ctb_parts[cpt].cpt_cpumask));
-	LASSERT(cpu_isset(cpu, *cptab->ctb_cpumask));
+	LASSERT(cpumask_test_cpu(cpu, cptab->ctb_parts[cpt].cpt_cpumask));
+	LASSERT(cpumask_test_cpu(cpu, cptab->ctb_cpumask));
 
-	cpu_clear(cpu, *cptab->ctb_parts[cpt].cpt_cpumask);
-	cpu_clear(cpu, *cptab->ctb_cpumask);
+	cpumask_clear_cpu(cpu, cptab->ctb_parts[cpt].cpt_cpumask);
+	cpumask_clear_cpu(cpu, cptab->ctb_cpumask);
 	cptab->ctb_cpu2cpt[cpu] = -1;
 
 	node = cpu_to_node(cpu);
@@ -356,22 +358,22 @@ cfs_cpt_unset_cpu(struct cfs_cpt_table *cptab, int cpt, int cpu)
 	LASSERT(node_isset(node, *cptab->ctb_parts[cpt].cpt_nodemask));
 	LASSERT(node_isset(node, *cptab->ctb_nodemask));
 
-	for_each_cpu_mask(i, *cptab->ctb_parts[cpt].cpt_cpumask) {
+	for_each_cpu(i, cptab->ctb_parts[cpt].cpt_cpumask) {
 		/* this CPT has other CPU belonging to this node? */
 		if (cpu_to_node(i) == node)
 			break;
 	}
 
-	if (i == NR_CPUS)
+	if (i >= nr_cpu_ids)
 		node_clear(node, *cptab->ctb_parts[cpt].cpt_nodemask);
 
-	for_each_cpu_mask(i, *cptab->ctb_cpumask) {
+	for_each_cpu(i, cptab->ctb_cpumask) {
 		/* this CPT-table has other CPU belonging to this node? */
 		if (cpu_to_node(i) == node)
 			break;
 	}
 
-	if (i == NR_CPUS)
+	if (i >= nr_cpu_ids)
 		node_clear(node, *cptab->ctb_nodemask);
 
 	return;
@@ -383,13 +385,14 @@ cfs_cpt_set_cpumask(struct cfs_cpt_table *cptab, int cpt, cpumask_t *mask)
 {
 	int	i;
 
-	if (cpus_weight(*mask) == 0 || any_online_cpu(*mask) == NR_CPUS) {
+	if (cpumask_weight(mask) == 0 ||
+	    cpumask_any_and(mask, cpu_online_mask) >= nr_cpu_ids) {
 		CDEBUG(D_INFO, "No online CPU is found in the CPU mask for CPU partition %d\n",
 		       cpt);
 		return 0;
 	}
 
-	for_each_cpu_mask(i, *mask) {
+	for_each_cpu(i, mask) {
 		if (!cfs_cpt_set_cpu(cptab, cpt, i))
 			return 0;
 	}
@@ -403,7 +406,7 @@ cfs_cpt_unset_cpumask(struct cfs_cpt_table *cptab, int cpt, cpumask_t *mask)
 {
 	int	i;
 
-	for_each_cpu_mask(i, *mask)
+	for_each_cpu(i, mask)
 		cfs_cpt_unset_cpu(cptab, cpt, i);
 }
 EXPORT_SYMBOL(cfs_cpt_unset_cpumask);
@@ -493,7 +496,7 @@ cfs_cpt_clear(struct cfs_cpt_table *cptab, int cpt)
 	}
 
 	for (; cpt <= last; cpt++) {
-		for_each_cpu_mask(i, *cptab->ctb_parts[cpt].cpt_cpumask)
+		for_each_cpu(i, cptab->ctb_parts[cpt].cpt_cpumask)
 			cfs_cpt_unset_cpu(cptab, cpt, i);
 	}
 }
@@ -554,7 +557,7 @@ EXPORT_SYMBOL(cfs_cpt_current);
 int
 cfs_cpt_of_cpu(struct cfs_cpt_table *cptab, int cpu)
 {
-	LASSERT(cpu >= 0 && cpu < NR_CPUS);
+	LASSERT(cpu >= 0 && cpu < nr_cpu_ids);
 
 	return cptab->ctb_cpu2cpt[cpu];
 }
@@ -578,14 +581,14 @@ cfs_cpt_bind(struct cfs_cpt_table *cptab, int cpt)
 		nodemask = cptab->ctb_parts[cpt].cpt_nodemask;
 	}
 
-	if (any_online_cpu(*cpumask) == NR_CPUS) {
+	if (cpumask_any_and(cpumask, cpu_online_mask) >= nr_cpu_ids) {
 		CERROR("No online CPU found in CPU partition %d, did someone do CPU hotplug on system? You might need to reload Lustre modules to keep system working well.\n",
 		       cpt);
 		return -EINVAL;
 	}
 
 	for_each_online_cpu(i) {
-		if (cpu_isset(i, *cpumask))
+		if (cpumask_test_cpu(i, cpumask))
 			continue;
 
 		rc = set_cpus_allowed_ptr(current, cpumask);
@@ -616,14 +619,14 @@ cfs_cpt_choose_ncpus(struct cfs_cpt_table *cptab, int cpt,
 
 	LASSERT(number > 0);
 
-	if (number >= cpus_weight(*node)) {
-		while (!cpus_empty(*node)) {
-			cpu = first_cpu(*node);
+	if (number >= cpumask_weight(node)) {
+		while (!cpumask_empty(node)) {
+			cpu = cpumask_first(node);
 
 			rc = cfs_cpt_set_cpu(cptab, cpt, cpu);
 			if (!rc)
 				return -EINVAL;
-			cpu_clear(cpu, *node);
+			cpumask_clear_cpu(cpu, node);
 		}
 		return 0;
 	}
@@ -636,27 +639,27 @@ cfs_cpt_choose_ncpus(struct cfs_cpt_table *cptab, int cpt,
 		goto out;
 	}
 
-	while (!cpus_empty(*node)) {
-		cpu = first_cpu(*node);
+	while (!cpumask_empty(node)) {
+		cpu = cpumask_first(node);
 
 		/* get cpumask for cores in the same socket */
 		cfs_cpu_core_siblings(cpu, socket);
-		cpus_and(*socket, *socket, *node);
+		cpumask_and(socket, socket, node);
 
-		LASSERT(!cpus_empty(*socket));
+		LASSERT(!cpumask_empty(socket));
 
-		while (!cpus_empty(*socket)) {
+		while (!cpumask_empty(socket)) {
 			int     i;
 
 			/* get cpumask for hts in the same core */
 			cfs_cpu_ht_siblings(cpu, core);
-			cpus_and(*core, *core, *node);
+			cpumask_and(core, core, node);
 
-			LASSERT(!cpus_empty(*core));
+			LASSERT(!cpumask_empty(core));
 
-			for_each_cpu_mask(i, *core) {
-				cpu_clear(i, *socket);
-				cpu_clear(i, *node);
+			for_each_cpu(i, core) {
+				cpumask_clear_cpu(i, socket);
+				cpumask_clear_cpu(i, node);
 
 				rc = cfs_cpt_set_cpu(cptab, cpt, i);
 				if (!rc) {
@@ -667,7 +670,7 @@ cfs_cpt_choose_ncpus(struct cfs_cpt_table *cptab, int cpt,
 				if (--number == 0)
 					goto out;
 			}
-			cpu = first_cpu(*socket);
+			cpu = cpumask_first(socket);
 		}
 	}
 
@@ -767,7 +770,7 @@ cfs_cpt_table_create(int ncpt)
 	for_each_online_node(i) {
 		cfs_node_to_cpumask(i, mask);
 
-		while (!cpus_empty(*mask)) {
+		while (!cpumask_empty(mask)) {
 			struct cfs_cpu_partition *part;
 			int    n;
 
@@ -776,24 +779,24 @@ cfs_cpt_table_create(int ncpt)
 
 			part = &cptab->ctb_parts[cpt];
 
-			n = num - cpus_weight(*part->cpt_cpumask);
+			n = num - cpumask_weight(part->cpt_cpumask);
 			LASSERT(n > 0);
 
 			rc = cfs_cpt_choose_ncpus(cptab, cpt, mask, n);
 			if (rc < 0)
 				goto failed;
 
-			LASSERT(num >= cpus_weight(*part->cpt_cpumask));
-			if (num == cpus_weight(*part->cpt_cpumask))
+			LASSERT(num >= cpumask_weight(part->cpt_cpumask));
+			if (num == cpumask_weight(part->cpt_cpumask))
 				cpt++;
 		}
 	}
 
 	if (cpt != ncpt ||
-	    num != cpus_weight(*cptab->ctb_parts[ncpt - 1].cpt_cpumask)) {
+	    num != cpumask_weight(cptab->ctb_parts[ncpt - 1].cpt_cpumask)) {
 		CERROR("Expect %d(%d) CPU partitions but got %d(%d), CPU hotplug/unplug while setting?\n",
 		       cptab->ctb_nparts, num, cpt,
-		       cpus_weight(*cptab->ctb_parts[ncpt - 1].cpt_cpumask));
+		       cpumask_weight(cptab->ctb_parts[ncpt - 1].cpt_cpumask));
 		goto failed;
 	}
 
@@ -845,7 +848,7 @@ cfs_cpt_table_create_pattern(char *pattern)
 		return NULL;
 	}
 
-	high = node ? MAX_NUMNODES - 1 : NR_CPUS - 1;
+	high = node ? MAX_NUMNODES - 1 : nr_cpu_ids - 1;
 
 	cptab = cfs_cpt_table_alloc(ncpt);
 	if (cptab == NULL) {
@@ -965,7 +968,8 @@ cfs_cpu_notify(struct notifier_block *self, unsigned long action, void *hcpu)
 		mutex_lock(&cpt_data.cpt_mutex);
 		/* if all HTs in a core are offline, it may break affinity */
 		cfs_cpu_ht_siblings(cpu, cpt_data.cpt_cpumask);
-		warn = any_online_cpu(*cpt_data.cpt_cpumask) >= nr_cpu_ids;
+		warn = cpumask_any_and(cpt_data.cpt_cpumask,
+				       cpu_online_mask) >= nr_cpu_ids;
 		mutex_unlock(&cpt_data.cpt_mutex);
 		CDEBUG(warn ? D_WARNING : D_INFO,
 		       "Lustre: can't support CPU plug-out well now, performance and stability could be impacted [CPU %u action: %lx]\n",
diff --git a/drivers/staging/lustre/lustre/libcfs/linux/linux-debug.c b/drivers/staging/lustre/lustre/libcfs/linux/linux-debug.c
index 12005a7..4545d54 100644
--- a/drivers/staging/lustre/lustre/libcfs/linux/linux-debug.c
+++ b/drivers/staging/lustre/lustre/libcfs/linux/linux-debug.c
@@ -50,7 +50,7 @@
 #include <linux/interrupt.h>
 #include <linux/completion.h>
 #include <linux/fs.h>
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
 #include <linux/miscdevice.h>
 
 # define DEBUG_SUBSYSTEM S_LNET
diff --git a/drivers/staging/lustre/lustre/libcfs/linux/linux-module.c b/drivers/staging/lustre/lustre/libcfs/linux/linux-module.c
index a5effcd..e962f89 100644
--- a/drivers/staging/lustre/lustre/libcfs/linux/linux-module.c
+++ b/drivers/staging/lustre/lustre/libcfs/linux/linux-module.c
@@ -57,7 +57,7 @@ int libcfs_ioctl_getdata(char *buf, char *end, void *arg)
 		return -EINVAL;
 	}
 
-	if (hdr->ioc_len + buf >= end) {
+	if (hdr->ioc_len >= end - buf) {
 		CERROR("PORTALS: user buffer exceeds kernel buffer\n");
 		return -EINVAL;
 	}
diff --git a/drivers/staging/lustre/lustre/libcfs/linux/linux-prim.c b/drivers/staging/lustre/lustre/libcfs/linux/linux-prim.c
index 19f405e..838f5f3 100644
--- a/drivers/staging/lustre/lustre/libcfs/linux/linux-prim.c
+++ b/drivers/staging/lustre/lustre/libcfs/linux/linux-prim.c
@@ -43,7 +43,7 @@
 #include "../../../include/linux/libcfs/libcfs.h"
 
 #if defined(CONFIG_KGDB)
-#include <asm/kgdb.h>
+#include <linux/kgdb.h>
 #endif
 
 /**
@@ -117,11 +117,12 @@ EXPORT_SYMBOL(cfs_timer_deadline);
 void cfs_enter_debugger(void)
 {
 #if defined(CONFIG_KGDB)
-//	BREAKPOINT();
+	/* BREAKPOINT(); */
 #else
 	/* nothing */
 #endif
 }
+EXPORT_SYMBOL(cfs_enter_debugger);
 
 
 sigset_t
@@ -138,6 +139,7 @@ cfs_block_allsigs(void)
 
 	return old;
 }
+EXPORT_SYMBOL(cfs_block_allsigs);
 
 sigset_t cfs_block_sigs(unsigned long sigs)
 {
@@ -151,6 +153,7 @@ sigset_t cfs_block_sigs(unsigned long sigs)
 	spin_unlock_irqrestore(&current->sighand->siglock, flags);
 	return old;
 }
+EXPORT_SYMBOL(cfs_block_sigs);
 
 /* Block all signals except for the @sigs */
 sigset_t cfs_block_sigsinv(unsigned long sigs)
@@ -166,9 +169,10 @@ sigset_t cfs_block_sigsinv(unsigned long sigs)
 
 	return old;
 }
+EXPORT_SYMBOL(cfs_block_sigsinv);
 
 void
-cfs_restore_sigs (sigset_t old)
+cfs_restore_sigs(sigset_t old)
 {
 	unsigned long  flags;
 
@@ -177,12 +181,14 @@ cfs_restore_sigs (sigset_t old)
 	recalc_sigpending();
 	spin_unlock_irqrestore(&current->sighand->siglock, flags);
 }
+EXPORT_SYMBOL(cfs_restore_sigs);
 
 int
 cfs_signal_pending(void)
 {
 	return signal_pending(current);
 }
+EXPORT_SYMBOL(cfs_signal_pending);
 
 void
 cfs_clear_sigpending(void)
@@ -193,25 +199,19 @@ cfs_clear_sigpending(void)
 	clear_tsk_thread_flag(current, TIF_SIGPENDING);
 	spin_unlock_irqrestore(&current->sighand->siglock, flags);
 }
+EXPORT_SYMBOL(cfs_clear_sigpending);
 
 int
 libcfs_arch_init(void)
 {
 	return 0;
 }
+EXPORT_SYMBOL(libcfs_arch_init);
 
 void
 libcfs_arch_cleanup(void)
 {
 	return;
 }
-
-EXPORT_SYMBOL(libcfs_arch_init);
 EXPORT_SYMBOL(libcfs_arch_cleanup);
-EXPORT_SYMBOL(cfs_enter_debugger);
-EXPORT_SYMBOL(cfs_block_allsigs);
-EXPORT_SYMBOL(cfs_block_sigs);
-EXPORT_SYMBOL(cfs_block_sigsinv);
-EXPORT_SYMBOL(cfs_restore_sigs);
-EXPORT_SYMBOL(cfs_signal_pending);
-EXPORT_SYMBOL(cfs_clear_sigpending);
+
diff --git a/drivers/staging/lustre/lustre/libcfs/linux/linux-proc.c b/drivers/staging/lustre/lustre/libcfs/linux/linux-proc.c
deleted file mode 100644
index c539e37..0000000
--- a/drivers/staging/lustre/lustre/libcfs/linux/linux-proc.c
+++ /dev/null
@@ -1,577 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * libcfs/libcfs/linux/linux-proc.c
- *
- * Author: Zach Brown <zab@zabbo.net>
- * Author: Peter J. Braam <braam@clusterfs.com>
- * Author: Phil Schwan <phil@clusterfs.com>
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/string.h>
-#include <linux/stat.h>
-#include <linux/errno.h>
-#include <linux/unistd.h>
-#include <net/sock.h>
-#include <linux/uio.h>
-
-#include <asm/uaccess.h>
-
-#include <linux/fs.h>
-#include <linux/file.h>
-#include <linux/list.h>
-
-#include <linux/proc_fs.h>
-#include <linux/sysctl.h>
-
-# define DEBUG_SUBSYSTEM S_LNET
-
-#include "../../../include/linux/libcfs/libcfs.h"
-#include <asm/div64.h>
-#include "../tracefile.h"
-
-static struct ctl_table_header *lnet_table_header = NULL;
-extern char lnet_upcall[1024];
-/**
- * The path of debug log dump upcall script.
- */
-extern char lnet_debug_log_upcall[1024];
-
-#define CTL_LNET	(0x100)
-enum {
-	PSDEV_DEBUG = 1,	  /* control debugging */
-	PSDEV_SUBSYSTEM_DEBUG,    /* control debugging */
-	PSDEV_PRINTK,	     /* force all messages to console */
-	PSDEV_CONSOLE_RATELIMIT,  /* ratelimit console messages */
-	PSDEV_CONSOLE_MAX_DELAY_CS, /* maximum delay over which we skip messages */
-	PSDEV_CONSOLE_MIN_DELAY_CS, /* initial delay over which we skip messages */
-	PSDEV_CONSOLE_BACKOFF,    /* delay increase factor */
-	PSDEV_DEBUG_PATH,	 /* crashdump log location */
-	PSDEV_DEBUG_DUMP_PATH,    /* crashdump tracelog location */
-	PSDEV_CPT_TABLE,	  /* information about cpu partitions */
-	PSDEV_LNET_UPCALL,	/* User mode upcall script  */
-	PSDEV_LNET_MEMUSED,       /* bytes currently PORTAL_ALLOCated */
-	PSDEV_LNET_CATASTROPHE,   /* if we have LBUGged or panic'd */
-	PSDEV_LNET_PANIC_ON_LBUG, /* flag to panic on LBUG */
-	PSDEV_LNET_DUMP_KERNEL,   /* snapshot kernel debug buffer to file */
-	PSDEV_LNET_DAEMON_FILE,   /* spool kernel debug buffer to file */
-	PSDEV_LNET_DEBUG_MB,      /* size of debug buffer */
-	PSDEV_LNET_DEBUG_LOG_UPCALL, /* debug log upcall script */
-	PSDEV_LNET_WATCHDOG_RATELIMIT,  /* ratelimit watchdog messages  */
-	PSDEV_LNET_FORCE_LBUG,    /* hook to force an LBUG */
-	PSDEV_LNET_FAIL_LOC,      /* control test failures instrumentation */
-	PSDEV_LNET_FAIL_VAL,      /* userdata for fail loc */
-};
-
-static int proc_call_handler(void *data, int write, loff_t *ppos,
-		void __user *buffer, size_t *lenp,
-		int (*handler)(void *data, int write,
-		loff_t pos, void __user *buffer, int len))
-{
-	int rc = handler(data, write, *ppos, buffer, *lenp);
-
-	if (rc < 0)
-		return rc;
-
-	if (write) {
-		*ppos += *lenp;
-	} else {
-		*lenp = rc;
-		*ppos += rc;
-	}
-	return 0;
-}
-
-static int __proc_dobitmasks(void *data, int write,
-			     loff_t pos, void __user *buffer, int nob)
-{
-	const int     tmpstrlen = 512;
-	char	 *tmpstr;
-	int	   rc;
-	unsigned int *mask = data;
-	int	   is_subsys = (mask == &libcfs_subsystem_debug) ? 1 : 0;
-	int	   is_printk = (mask == &libcfs_printk) ? 1 : 0;
-
-	rc = cfs_trace_allocate_string_buffer(&tmpstr, tmpstrlen);
-	if (rc < 0)
-		return rc;
-
-	if (!write) {
-		libcfs_debug_mask2str(tmpstr, tmpstrlen, *mask, is_subsys);
-		rc = strlen(tmpstr);
-
-		if (pos >= rc) {
-			rc = 0;
-		} else {
-			rc = cfs_trace_copyout_string(buffer, nob,
-						      tmpstr + pos, "\n");
-		}
-	} else {
-		rc = cfs_trace_copyin_string(tmpstr, tmpstrlen, buffer, nob);
-		if (rc < 0) {
-			cfs_trace_free_string_buffer(tmpstr, tmpstrlen);
-			return rc;
-		}
-
-		rc = libcfs_debug_str2mask(mask, tmpstr, is_subsys);
-		/* Always print LBUG/LASSERT to console, so keep this mask */
-		if (is_printk)
-			*mask |= D_EMERG;
-	}
-
-	cfs_trace_free_string_buffer(tmpstr, tmpstrlen);
-	return rc;
-}
-
-static int proc_dobitmasks(struct ctl_table *table, int write,
-			   void __user *buffer, size_t *lenp, loff_t *ppos)
-{
-	return proc_call_handler(table->data, write, ppos, buffer, lenp,
-				 __proc_dobitmasks);
-}
-
-static int min_watchdog_ratelimit = 0;	  /* disable ratelimiting */
-static int max_watchdog_ratelimit = (24*60*60); /* limit to once per day */
-
-static int __proc_dump_kernel(void *data, int write,
-			      loff_t pos, void __user *buffer, int nob)
-{
-	if (!write)
-		return 0;
-
-	return cfs_trace_dump_debug_buffer_usrstr(buffer, nob);
-}
-
-static int proc_dump_kernel(struct ctl_table *table, int write,
-			    void __user *buffer, size_t *lenp, loff_t *ppos)
-{
-	return proc_call_handler(table->data, write, ppos, buffer, lenp,
-				 __proc_dump_kernel);
-}
-
-static int __proc_daemon_file(void *data, int write,
-			      loff_t pos, void __user *buffer, int nob)
-{
-	if (!write) {
-		int len = strlen(cfs_tracefile);
-
-		if (pos >= len)
-			return 0;
-
-		return cfs_trace_copyout_string(buffer, nob,
-						cfs_tracefile + pos, "\n");
-	}
-
-	return cfs_trace_daemon_command_usrstr(buffer, nob);
-}
-
-static int proc_daemon_file(struct ctl_table *table, int write,
-			    void __user *buffer, size_t *lenp, loff_t *ppos)
-{
-	return proc_call_handler(table->data, write, ppos, buffer, lenp,
-				 __proc_daemon_file);
-}
-
-static int __proc_debug_mb(void *data, int write,
-			   loff_t pos, void __user *buffer, int nob)
-{
-	if (!write) {
-		char tmpstr[32];
-		int  len = snprintf(tmpstr, sizeof(tmpstr), "%d",
-				    cfs_trace_get_debug_mb());
-
-		if (pos >= len)
-			return 0;
-
-		return cfs_trace_copyout_string(buffer, nob, tmpstr + pos,
-		       "\n");
-	}
-
-	return cfs_trace_set_debug_mb_usrstr(buffer, nob);
-}
-
-static int proc_debug_mb(struct ctl_table *table, int write,
-			 void __user *buffer, size_t *lenp, loff_t *ppos)
-{
-	return proc_call_handler(table->data, write, ppos, buffer, lenp,
-				 __proc_debug_mb);
-}
-
-static int proc_console_max_delay_cs(struct ctl_table *table, int write,
-				     void __user *buffer, size_t *lenp,
-				     loff_t *ppos)
-{
-	int rc, max_delay_cs;
-	struct ctl_table dummy = *table;
-	long d;
-
-	dummy.data = &max_delay_cs;
-	dummy.proc_handler = &proc_dointvec;
-
-	if (!write) { /* read */
-		max_delay_cs = cfs_duration_sec(libcfs_console_max_delay * 100);
-		rc = proc_dointvec(&dummy, write, buffer, lenp, ppos);
-		return rc;
-	}
-
-	/* write */
-	max_delay_cs = 0;
-	rc = proc_dointvec(&dummy, write, buffer, lenp, ppos);
-	if (rc < 0)
-		return rc;
-	if (max_delay_cs <= 0)
-		return -EINVAL;
-
-	d = cfs_time_seconds(max_delay_cs) / 100;
-	if (d == 0 || d < libcfs_console_min_delay)
-		return -EINVAL;
-	libcfs_console_max_delay = d;
-
-	return rc;
-}
-
-static int proc_console_min_delay_cs(struct ctl_table *table, int write,
-				     void __user *buffer, size_t *lenp,
-				     loff_t *ppos)
-{
-	int rc, min_delay_cs;
-	struct ctl_table dummy = *table;
-	long d;
-
-	dummy.data = &min_delay_cs;
-	dummy.proc_handler = &proc_dointvec;
-
-	if (!write) { /* read */
-		min_delay_cs = cfs_duration_sec(libcfs_console_min_delay * 100);
-		rc = proc_dointvec(&dummy, write, buffer, lenp, ppos);
-		return rc;
-	}
-
-	/* write */
-	min_delay_cs = 0;
-	rc = proc_dointvec(&dummy, write, buffer, lenp, ppos);
-	if (rc < 0)
-		return rc;
-	if (min_delay_cs <= 0)
-		return -EINVAL;
-
-	d = cfs_time_seconds(min_delay_cs) / 100;
-	if (d == 0 || d > libcfs_console_max_delay)
-		return -EINVAL;
-	libcfs_console_min_delay = d;
-
-	return rc;
-}
-
-static int proc_console_backoff(struct ctl_table *table, int write,
-				void __user *buffer, size_t *lenp, loff_t *ppos)
-{
-	int rc, backoff;
-	struct ctl_table dummy = *table;
-
-	dummy.data = &backoff;
-	dummy.proc_handler = &proc_dointvec;
-
-	if (!write) { /* read */
-		backoff= libcfs_console_backoff;
-		rc = proc_dointvec(&dummy, write, buffer, lenp, ppos);
-		return rc;
-	}
-
-	/* write */
-	backoff = 0;
-	rc = proc_dointvec(&dummy, write, buffer, lenp, ppos);
-	if (rc < 0)
-		return rc;
-	if (backoff <= 0)
-		return -EINVAL;
-
-	libcfs_console_backoff = backoff;
-
-	return rc;
-}
-
-static int libcfs_force_lbug(struct ctl_table *table, int write,
-			     void __user *buffer,
-			     size_t *lenp, loff_t *ppos)
-{
-	if (write)
-		LBUG();
-	return 0;
-}
-
-static int proc_fail_loc(struct ctl_table *table, int write,
-			 void __user *buffer,
-			 size_t *lenp, loff_t *ppos)
-{
-	int rc;
-	long old_fail_loc = cfs_fail_loc;
-
-	rc = proc_doulongvec_minmax(table, write, buffer, lenp, ppos);
-	if (old_fail_loc != cfs_fail_loc)
-		wake_up(&cfs_race_waitq);
-	return rc;
-}
-
-static int __proc_cpt_table(void *data, int write,
-			    loff_t pos, void __user *buffer, int nob)
-{
-	char *buf = NULL;
-	int   len = 4096;
-	int   rc  = 0;
-
-	if (write)
-		return -EPERM;
-
-	LASSERT(cfs_cpt_table != NULL);
-
-	while (1) {
-		LIBCFS_ALLOC(buf, len);
-		if (buf == NULL)
-			return -ENOMEM;
-
-		rc = cfs_cpt_table_print(cfs_cpt_table, buf, len);
-		if (rc >= 0)
-			break;
-
-		if (rc == -EFBIG) {
-			LIBCFS_FREE(buf, len);
-			len <<= 1;
-			continue;
-		}
-		goto out;
-	}
-
-	if (pos >= rc) {
-		rc = 0;
-		goto out;
-	}
-
-	rc = cfs_trace_copyout_string(buffer, nob, buf + pos, NULL);
- out:
-	if (buf != NULL)
-		LIBCFS_FREE(buf, len);
-	return rc;
-}
-
-static int proc_cpt_table(struct ctl_table *table, int write,
-			   void __user *buffer, size_t *lenp, loff_t *ppos)
-{
-	return proc_call_handler(table->data, write, ppos, buffer, lenp,
-				 __proc_cpt_table);
-}
-
-static struct ctl_table lnet_table[] = {
-	/*
-	 * NB No .strategy entries have been provided since sysctl(8) prefers
-	 * to go via /proc for portability.
-	 */
-	{
-		.procname = "debug",
-		.data     = &libcfs_debug,
-		.maxlen   = sizeof(int),
-		.mode     = 0644,
-		.proc_handler = &proc_dobitmasks,
-	},
-	{
-		.procname = "subsystem_debug",
-		.data     = &libcfs_subsystem_debug,
-		.maxlen   = sizeof(int),
-		.mode     = 0644,
-		.proc_handler = &proc_dobitmasks,
-	},
-	{
-		.procname = "printk",
-		.data     = &libcfs_printk,
-		.maxlen   = sizeof(int),
-		.mode     = 0644,
-		.proc_handler = &proc_dobitmasks,
-	},
-	{
-		.procname = "console_ratelimit",
-		.data     = &libcfs_console_ratelimit,
-		.maxlen   = sizeof(int),
-		.mode     = 0644,
-		.proc_handler = &proc_dointvec
-	},
-	{
-		.procname = "console_max_delay_centisecs",
-		.maxlen   = sizeof(int),
-		.mode     = 0644,
-		.proc_handler = &proc_console_max_delay_cs
-	},
-	{
-		.procname = "console_min_delay_centisecs",
-		.maxlen   = sizeof(int),
-		.mode     = 0644,
-		.proc_handler = &proc_console_min_delay_cs
-	},
-	{
-		.procname = "console_backoff",
-		.maxlen   = sizeof(int),
-		.mode     = 0644,
-		.proc_handler = &proc_console_backoff
-	},
-
-	{
-		.procname = "debug_path",
-		.data     = libcfs_debug_file_path_arr,
-		.maxlen   = sizeof(libcfs_debug_file_path_arr),
-		.mode     = 0644,
-		.proc_handler = &proc_dostring,
-	},
-
-	{
-		.procname = "cpu_partition_table",
-		.maxlen   = 128,
-		.mode     = 0444,
-		.proc_handler = &proc_cpt_table,
-	},
-
-	{
-		.procname = "upcall",
-		.data     = lnet_upcall,
-		.maxlen   = sizeof(lnet_upcall),
-		.mode     = 0644,
-		.proc_handler = &proc_dostring,
-	},
-	{
-		.procname = "debug_log_upcall",
-		.data     = lnet_debug_log_upcall,
-		.maxlen   = sizeof(lnet_debug_log_upcall),
-		.mode     = 0644,
-		.proc_handler = &proc_dostring,
-	},
-	{
-		.procname = "lnet_memused",
-		.data     = (int *)&libcfs_kmemory.counter,
-		.maxlen   = sizeof(int),
-		.mode     = 0444,
-		.proc_handler = &proc_dointvec,
-	},
-	{
-		.procname = "catastrophe",
-		.data     = &libcfs_catastrophe,
-		.maxlen   = sizeof(int),
-		.mode     = 0444,
-		.proc_handler = &proc_dointvec,
-	},
-	{
-		.procname = "panic_on_lbug",
-		.data     = &libcfs_panic_on_lbug,
-		.maxlen   = sizeof(int),
-		.mode     = 0644,
-		.proc_handler = &proc_dointvec,
-	},
-	{
-		.procname = "dump_kernel",
-		.maxlen   = 256,
-		.mode     = 0200,
-		.proc_handler = &proc_dump_kernel,
-	},
-	{
-		.procname = "daemon_file",
-		.mode     = 0644,
-		.maxlen   = 256,
-		.proc_handler = &proc_daemon_file,
-	},
-	{
-		.procname = "debug_mb",
-		.mode     = 0644,
-		.proc_handler = &proc_debug_mb,
-	},
-	{
-		.procname = "watchdog_ratelimit",
-		.data     = &libcfs_watchdog_ratelimit,
-		.maxlen   = sizeof(int),
-		.mode     = 0644,
-		.proc_handler = &proc_dointvec_minmax,
-		.extra1   = &min_watchdog_ratelimit,
-		.extra2   = &max_watchdog_ratelimit,
-	},
-	{
-		.procname = "force_lbug",
-		.data     = NULL,
-		.maxlen   = 0,
-		.mode     = 0200,
-		.proc_handler = &libcfs_force_lbug
-	},
-	{
-		.procname = "fail_loc",
-		.data     = &cfs_fail_loc,
-		.maxlen   = sizeof(cfs_fail_loc),
-		.mode     = 0644,
-		.proc_handler = &proc_fail_loc
-	},
-	{
-		.procname = "fail_val",
-		.data     = &cfs_fail_val,
-		.maxlen   = sizeof(int),
-		.mode     = 0644,
-		.proc_handler = &proc_dointvec
-	},
-	{
-	}
-};
-
-static struct ctl_table top_table[] = {
-	{
-		.procname = "lnet",
-		.mode     = 0555,
-		.data     = NULL,
-		.maxlen   = 0,
-		.child    = lnet_table,
-	},
-	{
-	}
-};
-
-int insert_proc(void)
-{
-	if (lnet_table_header == NULL)
-		lnet_table_header = register_sysctl_table(top_table);
-	return 0;
-}
-
-void remove_proc(void)
-{
-	if (lnet_table_header != NULL)
-		unregister_sysctl_table(lnet_table_header);
-
-	lnet_table_header = NULL;
-}
diff --git a/drivers/staging/lustre/lustre/libcfs/linux/linux-tcpip.c b/drivers/staging/lustre/lustre/libcfs/linux/linux-tcpip.c
index cd2fc01..f2462e7 100644
--- a/drivers/staging/lustre/lustre/libcfs/linux/linux-tcpip.c
+++ b/drivers/staging/lustre/lustre/libcfs/linux/linux-tcpip.c
@@ -543,19 +543,17 @@ libcfs_sock_accept (struct socket **newsockp, struct socket *sock)
 
 	newsock->ops = sock->ops;
 
-	set_current_state(TASK_INTERRUPTIBLE);
-	add_wait_queue(sk_sleep(sock->sk), &wait);
-
 	rc = sock->ops->accept(sock, newsock, O_NONBLOCK);
 	if (rc == -EAGAIN) {
 		/* Nothing ready, so wait for activity */
+		set_current_state(TASK_INTERRUPTIBLE);
+		add_wait_queue(sk_sleep(sock->sk), &wait);
 		schedule();
+		remove_wait_queue(sk_sleep(sock->sk), &wait);
+		set_current_state(TASK_RUNNING);
 		rc = sock->ops->accept(sock, newsock, O_NONBLOCK);
 	}
 
-	remove_wait_queue(sk_sleep(sock->sk), &wait);
-	set_current_state(TASK_RUNNING);
-
 	if (rc != 0)
 		goto failed;
 
diff --git a/drivers/staging/lustre/lustre/libcfs/module.c b/drivers/staging/lustre/lustre/libcfs/module.c
index 7dc77dd..f0ee76a 100644
--- a/drivers/staging/lustre/lustre/libcfs/module.c
+++ b/drivers/staging/lustre/lustre/libcfs/module.c
@@ -33,15 +33,82 @@
  * This file is part of Lustre, http://www.lustre.org/
  * Lustre is a trademark of Sun Microsystems, Inc.
  */
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/string.h>
+#include <linux/stat.h>
+#include <linux/errno.h>
+#include <linux/unistd.h>
+#include <net/sock.h>
+#include <linux/uio.h>
 
-#define DEBUG_SUBSYSTEM S_LNET
+#include <linux/uaccess.h>
+
+#include <linux/fs.h>
+#include <linux/file.h>
+#include <linux/list.h>
+
+#include <linux/proc_fs.h>
+#include <linux/sysctl.h>
+
+# define DEBUG_SUBSYSTEM S_LNET
 
 #include "../../include/linux/libcfs/libcfs.h"
+#include <asm/div64.h>
+
 #include "../../include/linux/libcfs/libcfs_crypto.h"
 #include "../../include/linux/lnet/lib-lnet.h"
 #include "../../include/linux/lnet/lnet.h"
 #include "tracefile.h"
 
+MODULE_AUTHOR("Peter J. Braam <braam@clusterfs.com>");
+MODULE_DESCRIPTION("Portals v3.1");
+MODULE_LICENSE("GPL");
+
+extern struct miscdevice libcfs_dev;
+extern struct rw_semaphore cfs_tracefile_sem;
+extern struct mutex cfs_trace_thread_mutex;
+extern struct cfs_wi_sched *cfs_sched_rehash;
+extern void libcfs_init_nidstrings(void);
+
+static int insert_proc(void);
+static void remove_proc(void);
+
+static struct ctl_table_header *lnet_table_header;
+extern char lnet_upcall[1024];
+/**
+ * The path of debug log dump upcall script.
+ */
+extern char lnet_debug_log_upcall[1024];
+
+#define CTL_LNET	(0x100)
+
+enum {
+	PSDEV_DEBUG = 1,	  /* control debugging */
+	PSDEV_SUBSYSTEM_DEBUG,    /* control debugging */
+	PSDEV_PRINTK,	     /* force all messages to console */
+	PSDEV_CONSOLE_RATELIMIT,  /* ratelimit console messages */
+	PSDEV_CONSOLE_MAX_DELAY_CS, /* maximum delay over which we skip messages */
+	PSDEV_CONSOLE_MIN_DELAY_CS, /* initial delay over which we skip messages */
+	PSDEV_CONSOLE_BACKOFF,    /* delay increase factor */
+	PSDEV_DEBUG_PATH,	 /* crashdump log location */
+	PSDEV_DEBUG_DUMP_PATH,    /* crashdump tracelog location */
+	PSDEV_CPT_TABLE,	  /* information about cpu partitions */
+	PSDEV_LNET_UPCALL,	/* User mode upcall script  */
+	PSDEV_LNET_MEMUSED,       /* bytes currently PORTAL_ALLOCated */
+	PSDEV_LNET_CATASTROPHE,   /* if we have LBUGged or panic'd */
+	PSDEV_LNET_PANIC_ON_LBUG, /* flag to panic on LBUG */
+	PSDEV_LNET_DUMP_KERNEL,   /* snapshot kernel debug buffer to file */
+	PSDEV_LNET_DAEMON_FILE,   /* spool kernel debug buffer to file */
+	PSDEV_LNET_DEBUG_MB,      /* size of debug buffer */
+	PSDEV_LNET_DEBUG_LOG_UPCALL, /* debug log upcall script */
+	PSDEV_LNET_WATCHDOG_RATELIMIT,  /* ratelimit watchdog messages  */
+	PSDEV_LNET_FORCE_LBUG,    /* hook to force an LBUG */
+	PSDEV_LNET_FAIL_LOC,      /* control test failures instrumentation */
+	PSDEV_LNET_FAIL_VAL,      /* userdata for fail loc */
+};
+
 static void kportal_memhog_free (struct libcfs_device_userstate *ldu)
 {
 	struct page **level0p = &ldu->ldu_memhog_root_page;
@@ -320,19 +387,6 @@ struct cfs_psdev_ops libcfs_psdev_ops = {
 	libcfs_ioctl
 };
 
-extern int insert_proc(void);
-extern void remove_proc(void);
-MODULE_AUTHOR("Peter J. Braam <braam@clusterfs.com>");
-MODULE_DESCRIPTION("Portals v3.1");
-MODULE_LICENSE("GPL");
-
-extern struct miscdevice libcfs_dev;
-extern struct rw_semaphore cfs_tracefile_sem;
-extern struct mutex cfs_trace_thread_mutex;
-extern struct cfs_wi_sched *cfs_sched_rehash;
-
-extern void libcfs_init_nidstrings(void);
-
 static int init_libcfs_module(void)
 {
 	int rc;
@@ -347,7 +401,7 @@ static int init_libcfs_module(void)
 
 	rc = libcfs_debug_init(5 * 1024 * 1024);
 	if (rc < 0) {
-		printk(KERN_ERR "LustreError: libcfs_debug_init: %d\n", rc);
+		pr_err("LustreError: libcfs_debug_init: %d\n", rc);
 		return rc;
 	}
 
@@ -433,12 +487,490 @@ static void exit_libcfs_module(void)
 
 	rc = libcfs_debug_cleanup();
 	if (rc)
-		printk(KERN_ERR "LustreError: libcfs_debug_cleanup: %d\n",
-		       rc);
+		pr_err("LustreError: libcfs_debug_cleanup: %d\n", rc);
 
 	libcfs_arch_cleanup();
 }
 
+static int proc_call_handler(void *data, int write, loff_t *ppos,
+		void __user *buffer, size_t *lenp,
+		int (*handler)(void *data, int write,
+		loff_t pos, void __user *buffer, int len))
+{
+	int rc = handler(data, write, *ppos, buffer, *lenp);
+
+	if (rc < 0)
+		return rc;
+
+	if (write) {
+		*ppos += *lenp;
+	} else {
+		*lenp = rc;
+		*ppos += rc;
+	}
+	return 0;
+}
+
+static int __proc_dobitmasks(void *data, int write,
+			     loff_t pos, void __user *buffer, int nob)
+{
+	const int     tmpstrlen = 512;
+	char	 *tmpstr;
+	int	   rc;
+	unsigned int *mask = data;
+	int	   is_subsys = (mask == &libcfs_subsystem_debug) ? 1 : 0;
+	int	   is_printk = (mask == &libcfs_printk) ? 1 : 0;
+
+	rc = cfs_trace_allocate_string_buffer(&tmpstr, tmpstrlen);
+	if (rc < 0)
+		return rc;
+
+	if (!write) {
+		libcfs_debug_mask2str(tmpstr, tmpstrlen, *mask, is_subsys);
+		rc = strlen(tmpstr);
+
+		if (pos >= rc) {
+			rc = 0;
+		} else {
+			rc = cfs_trace_copyout_string(buffer, nob,
+						      tmpstr + pos, "\n");
+		}
+	} else {
+		rc = cfs_trace_copyin_string(tmpstr, tmpstrlen, buffer, nob);
+		if (rc < 0) {
+			cfs_trace_free_string_buffer(tmpstr, tmpstrlen);
+			return rc;
+		}
+
+		rc = libcfs_debug_str2mask(mask, tmpstr, is_subsys);
+		/* Always print LBUG/LASSERT to console, so keep this mask */
+		if (is_printk)
+			*mask |= D_EMERG;
+	}
+
+	cfs_trace_free_string_buffer(tmpstr, tmpstrlen);
+	return rc;
+}
+
+static int proc_dobitmasks(struct ctl_table *table, int write,
+			   void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+	return proc_call_handler(table->data, write, ppos, buffer, lenp,
+				 __proc_dobitmasks);
+}
+
+static int min_watchdog_ratelimit;	  /* disable ratelimiting */
+static int max_watchdog_ratelimit = (24*60*60); /* limit to once per day */
+
+static int __proc_dump_kernel(void *data, int write,
+			      loff_t pos, void __user *buffer, int nob)
+{
+	if (!write)
+		return 0;
+
+	return cfs_trace_dump_debug_buffer_usrstr(buffer, nob);
+}
+
+static int proc_dump_kernel(struct ctl_table *table, int write,
+			    void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+	return proc_call_handler(table->data, write, ppos, buffer, lenp,
+				 __proc_dump_kernel);
+}
+
+static int __proc_daemon_file(void *data, int write,
+			      loff_t pos, void __user *buffer, int nob)
+{
+	if (!write) {
+		int len = strlen(cfs_tracefile);
+
+		if (pos >= len)
+			return 0;
+
+		return cfs_trace_copyout_string(buffer, nob,
+						cfs_tracefile + pos, "\n");
+	}
+
+	return cfs_trace_daemon_command_usrstr(buffer, nob);
+}
+
+static int proc_daemon_file(struct ctl_table *table, int write,
+			    void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+	return proc_call_handler(table->data, write, ppos, buffer, lenp,
+				 __proc_daemon_file);
+}
+
+static int __proc_debug_mb(void *data, int write,
+			   loff_t pos, void __user *buffer, int nob)
+{
+	if (!write) {
+		char tmpstr[32];
+		int  len = snprintf(tmpstr, sizeof(tmpstr), "%d",
+				    cfs_trace_get_debug_mb());
+
+		if (pos >= len)
+			return 0;
+
+		return cfs_trace_copyout_string(buffer, nob, tmpstr + pos,
+		       "\n");
+	}
+
+	return cfs_trace_set_debug_mb_usrstr(buffer, nob);
+}
+
+static int proc_debug_mb(struct ctl_table *table, int write,
+			 void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+	return proc_call_handler(table->data, write, ppos, buffer, lenp,
+				 __proc_debug_mb);
+}
+
+static int proc_console_max_delay_cs(struct ctl_table *table, int write,
+				     void __user *buffer, size_t *lenp,
+				     loff_t *ppos)
+{
+	int rc, max_delay_cs;
+	struct ctl_table dummy = *table;
+	long d;
+
+	dummy.data = &max_delay_cs;
+	dummy.proc_handler = &proc_dointvec;
+
+	if (!write) { /* read */
+		max_delay_cs = cfs_duration_sec(libcfs_console_max_delay * 100);
+		rc = proc_dointvec(&dummy, write, buffer, lenp, ppos);
+		return rc;
+	}
+
+	/* write */
+	max_delay_cs = 0;
+	rc = proc_dointvec(&dummy, write, buffer, lenp, ppos);
+	if (rc < 0)
+		return rc;
+	if (max_delay_cs <= 0)
+		return -EINVAL;
+
+	d = cfs_time_seconds(max_delay_cs) / 100;
+	if (d == 0 || d < libcfs_console_min_delay)
+		return -EINVAL;
+	libcfs_console_max_delay = d;
+
+	return rc;
+}
+
+static int proc_console_min_delay_cs(struct ctl_table *table, int write,
+				     void __user *buffer, size_t *lenp,
+				     loff_t *ppos)
+{
+	int rc, min_delay_cs;
+	struct ctl_table dummy = *table;
+	long d;
+
+	dummy.data = &min_delay_cs;
+	dummy.proc_handler = &proc_dointvec;
+
+	if (!write) { /* read */
+		min_delay_cs = cfs_duration_sec(libcfs_console_min_delay * 100);
+		rc = proc_dointvec(&dummy, write, buffer, lenp, ppos);
+		return rc;
+	}
+
+	/* write */
+	min_delay_cs = 0;
+	rc = proc_dointvec(&dummy, write, buffer, lenp, ppos);
+	if (rc < 0)
+		return rc;
+	if (min_delay_cs <= 0)
+		return -EINVAL;
+
+	d = cfs_time_seconds(min_delay_cs) / 100;
+	if (d == 0 || d > libcfs_console_max_delay)
+		return -EINVAL;
+	libcfs_console_min_delay = d;
+
+	return rc;
+}
+
+static int proc_console_backoff(struct ctl_table *table, int write,
+				void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+	int rc, backoff;
+	struct ctl_table dummy = *table;
+
+	dummy.data = &backoff;
+	dummy.proc_handler = &proc_dointvec;
+
+	if (!write) { /* read */
+		backoff = libcfs_console_backoff;
+		rc = proc_dointvec(&dummy, write, buffer, lenp, ppos);
+		return rc;
+	}
+
+	/* write */
+	backoff = 0;
+	rc = proc_dointvec(&dummy, write, buffer, lenp, ppos);
+	if (rc < 0)
+		return rc;
+	if (backoff <= 0)
+		return -EINVAL;
+
+	libcfs_console_backoff = backoff;
+
+	return rc;
+}
+
+static int libcfs_force_lbug(struct ctl_table *table, int write,
+			     void __user *buffer,
+			     size_t *lenp, loff_t *ppos)
+{
+	if (write)
+		LBUG();
+	return 0;
+}
+
+static int proc_fail_loc(struct ctl_table *table, int write,
+			 void __user *buffer,
+			 size_t *lenp, loff_t *ppos)
+{
+	int rc;
+	long old_fail_loc = cfs_fail_loc;
+
+	rc = proc_doulongvec_minmax(table, write, buffer, lenp, ppos);
+	if (old_fail_loc != cfs_fail_loc)
+		wake_up(&cfs_race_waitq);
+	return rc;
+}
+
+static int __proc_cpt_table(void *data, int write,
+			    loff_t pos, void __user *buffer, int nob)
+{
+	char *buf = NULL;
+	int   len = 4096;
+	int   rc  = 0;
+
+	if (write)
+		return -EPERM;
+
+	LASSERT(cfs_cpt_table != NULL);
+
+	while (1) {
+		LIBCFS_ALLOC(buf, len);
+		if (buf == NULL)
+			return -ENOMEM;
+
+		rc = cfs_cpt_table_print(cfs_cpt_table, buf, len);
+		if (rc >= 0)
+			break;
+
+		if (rc == -EFBIG) {
+			LIBCFS_FREE(buf, len);
+			len <<= 1;
+			continue;
+		}
+		goto out;
+	}
+
+	if (pos >= rc) {
+		rc = 0;
+		goto out;
+	}
+
+	rc = cfs_trace_copyout_string(buffer, nob, buf + pos, NULL);
+ out:
+	if (buf != NULL)
+		LIBCFS_FREE(buf, len);
+	return rc;
+}
+
+static int proc_cpt_table(struct ctl_table *table, int write,
+			   void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+	return proc_call_handler(table->data, write, ppos, buffer, lenp,
+				 __proc_cpt_table);
+}
+
+static struct ctl_table lnet_table[] = {
+	/*
+	 * NB No .strategy entries have been provided since sysctl(8) prefers
+	 * to go via /proc for portability.
+	 */
+	{
+		.procname = "debug",
+		.data     = &libcfs_debug,
+		.maxlen   = sizeof(int),
+		.mode     = 0644,
+		.proc_handler = &proc_dobitmasks,
+	},
+	{
+		.procname = "subsystem_debug",
+		.data     = &libcfs_subsystem_debug,
+		.maxlen   = sizeof(int),
+		.mode     = 0644,
+		.proc_handler = &proc_dobitmasks,
+	},
+	{
+		.procname = "printk",
+		.data     = &libcfs_printk,
+		.maxlen   = sizeof(int),
+		.mode     = 0644,
+		.proc_handler = &proc_dobitmasks,
+	},
+	{
+		.procname = "console_ratelimit",
+		.data     = &libcfs_console_ratelimit,
+		.maxlen   = sizeof(int),
+		.mode     = 0644,
+		.proc_handler = &proc_dointvec
+	},
+	{
+		.procname = "console_max_delay_centisecs",
+		.maxlen   = sizeof(int),
+		.mode     = 0644,
+		.proc_handler = &proc_console_max_delay_cs
+	},
+	{
+		.procname = "console_min_delay_centisecs",
+		.maxlen   = sizeof(int),
+		.mode     = 0644,
+		.proc_handler = &proc_console_min_delay_cs
+	},
+	{
+		.procname = "console_backoff",
+		.maxlen   = sizeof(int),
+		.mode     = 0644,
+		.proc_handler = &proc_console_backoff
+	},
+
+	{
+		.procname = "debug_path",
+		.data     = libcfs_debug_file_path_arr,
+		.maxlen   = sizeof(libcfs_debug_file_path_arr),
+		.mode     = 0644,
+		.proc_handler = &proc_dostring,
+	},
+
+	{
+		.procname = "cpu_partition_table",
+		.maxlen   = 128,
+		.mode     = 0444,
+		.proc_handler = &proc_cpt_table,
+	},
+
+	{
+		.procname = "upcall",
+		.data     = lnet_upcall,
+		.maxlen   = sizeof(lnet_upcall),
+		.mode     = 0644,
+		.proc_handler = &proc_dostring,
+	},
+	{
+		.procname = "debug_log_upcall",
+		.data     = lnet_debug_log_upcall,
+		.maxlen   = sizeof(lnet_debug_log_upcall),
+		.mode     = 0644,
+		.proc_handler = &proc_dostring,
+	},
+	{
+		.procname = "lnet_memused",
+		.data     = (int *)&libcfs_kmemory.counter,
+		.maxlen   = sizeof(int),
+		.mode     = 0444,
+		.proc_handler = &proc_dointvec,
+	},
+	{
+		.procname = "catastrophe",
+		.data     = &libcfs_catastrophe,
+		.maxlen   = sizeof(int),
+		.mode     = 0444,
+		.proc_handler = &proc_dointvec,
+	},
+	{
+		.procname = "panic_on_lbug",
+		.data     = &libcfs_panic_on_lbug,
+		.maxlen   = sizeof(int),
+		.mode     = 0644,
+		.proc_handler = &proc_dointvec,
+	},
+	{
+		.procname = "dump_kernel",
+		.maxlen   = 256,
+		.mode     = 0200,
+		.proc_handler = &proc_dump_kernel,
+	},
+	{
+		.procname = "daemon_file",
+		.mode     = 0644,
+		.maxlen   = 256,
+		.proc_handler = &proc_daemon_file,
+	},
+	{
+		.procname = "debug_mb",
+		.mode     = 0644,
+		.proc_handler = &proc_debug_mb,
+	},
+	{
+		.procname = "watchdog_ratelimit",
+		.data     = &libcfs_watchdog_ratelimit,
+		.maxlen   = sizeof(int),
+		.mode     = 0644,
+		.proc_handler = &proc_dointvec_minmax,
+		.extra1   = &min_watchdog_ratelimit,
+		.extra2   = &max_watchdog_ratelimit,
+	},
+	{
+		.procname = "force_lbug",
+		.data     = NULL,
+		.maxlen   = 0,
+		.mode     = 0200,
+		.proc_handler = &libcfs_force_lbug
+	},
+	{
+		.procname = "fail_loc",
+		.data     = &cfs_fail_loc,
+		.maxlen   = sizeof(cfs_fail_loc),
+		.mode     = 0644,
+		.proc_handler = &proc_fail_loc
+	},
+	{
+		.procname = "fail_val",
+		.data     = &cfs_fail_val,
+		.maxlen   = sizeof(int),
+		.mode     = 0644,
+		.proc_handler = &proc_dointvec
+	},
+	{
+	}
+};
+
+static struct ctl_table top_table[] = {
+	{
+		.procname = "lnet",
+		.mode     = 0555,
+		.data     = NULL,
+		.maxlen   = 0,
+		.child    = lnet_table,
+	},
+	{
+	}
+};
+
+static int insert_proc(void)
+{
+	if (lnet_table_header == NULL)
+		lnet_table_header = register_sysctl_table(top_table);
+	return 0;
+}
+
+static void remove_proc(void)
+{
+	if (lnet_table_header != NULL)
+		unregister_sysctl_table(lnet_table_header);
+
+	lnet_table_header = NULL;
+}
+
 MODULE_VERSION("1.0.0");
+
 module_init(init_libcfs_module);
 module_exit(exit_libcfs_module);
diff --git a/drivers/staging/lustre/lustre/libcfs/tracefile.c b/drivers/staging/lustre/lustre/libcfs/tracefile.c
index eb65b50..c86394f 100644
--- a/drivers/staging/lustre/lustre/libcfs/tracefile.c
+++ b/drivers/staging/lustre/lustre/libcfs/tracefile.c
@@ -53,7 +53,7 @@ char cfs_tracefile[TRACEFILE_NAME_SIZE];
 long long cfs_tracefile_size = CFS_TRACEFILE_SIZE;
 static struct tracefiled_ctl trace_tctl;
 struct mutex cfs_trace_thread_mutex;
-static int thread_running = 0;
+static int thread_running;
 
 static atomic_t cfs_tage_allocated = ATOMIC_INIT(0);
 
@@ -224,8 +224,7 @@ static struct cfs_trace_page *cfs_trace_get_tage(struct cfs_trace_cpu_data *tcd,
 	 */
 
 	if (len > PAGE_CACHE_SIZE) {
-		printk(KERN_ERR
-		       "cowardly refusing to write %lu bytes in a page\n", len);
+		pr_err("cowardly refusing to write %lu bytes in a page\n", len);
 		return NULL;
 	}
 
@@ -688,8 +687,8 @@ int cfs_tracefile_dump_all_pages(char *filename)
 	if (IS_ERR(filp)) {
 		rc = PTR_ERR(filp);
 		filp = NULL;
-		printk(KERN_ERR "LustreError: can't open %s for dump: rc %d\n",
-		      filename, rc);
+		pr_err("LustreError: can't open %s for dump: rc %d\n",
+			filename, rc);
 		goto out;
 	}
 
@@ -726,7 +725,7 @@ int cfs_tracefile_dump_all_pages(char *filename)
 	MMSPACE_CLOSE;
 	rc = vfs_fsync(filp, 1);
 	if (rc)
-		printk(KERN_ERR "sync returns %d\n", rc);
+		pr_err("sync returns %d\n", rc);
 close:
 	filp_close(filp, NULL);
 out:
@@ -1048,22 +1047,21 @@ static int tracefiled(void *arg)
 			int i;
 
 			printk(KERN_ALERT "Lustre: trace pages aren't empty\n");
-			printk(KERN_ERR "total cpus(%d): ",
-			       num_possible_cpus());
+			pr_err("total cpus(%d): ",
+				num_possible_cpus());
 			for (i = 0; i < num_possible_cpus(); i++)
 				if (cpu_online(i))
-					printk(KERN_ERR "%d(on) ", i);
+					pr_cont("%d(on) ", i);
 				else
-					printk(KERN_ERR "%d(off) ", i);
-			printk(KERN_ERR "\n");
+					pr_cont("%d(off) ", i);
+			pr_cont("\n");
 
 			i = 0;
 			list_for_each_entry_safe(tage, tmp, &pc.pc_pages,
 						     linkage)
-				printk(KERN_ERR "page %d belongs to cpu %d\n",
-				       ++i, tage->cpu);
-			printk(KERN_ERR "There are %d pages unwritten\n",
-			       i);
+				pr_err("page %d belongs to cpu %d\n",
+					++i, tage->cpu);
+			pr_err("There are %d pages unwritten\n", i);
 		}
 		__LASSERT(list_empty(&pc.pc_pages));
 end_loop:
diff --git a/drivers/staging/lustre/lustre/libcfs/workitem.c b/drivers/staging/lustre/lustre/libcfs/workitem.c
index c4afaea..48009b7 100644
--- a/drivers/staging/lustre/lustre/libcfs/workitem.c
+++ b/drivers/staging/lustre/lustre/libcfs/workitem.c
@@ -442,7 +442,7 @@ cfs_wi_startup(void)
 }
 
 void
-cfs_wi_shutdown (void)
+cfs_wi_shutdown(void)
 {
 	struct cfs_wi_sched	*sched;
 
diff --git a/drivers/staging/lustre/lustre/llite/dcache.c b/drivers/staging/lustre/lustre/llite/dcache.c
index ddf1fa9..fe1fd05 100644
--- a/drivers/staging/lustre/lustre/llite/dcache.c
+++ b/drivers/staging/lustre/lustre/llite/dcache.c
@@ -128,7 +128,7 @@ static int find_cbdata(struct inode *inode)
 	rc = md_find_cbdata(sbi->ll_md_exp, ll_inode2fid(inode),
 			    return_if_equal, NULL);
 	if (rc != 0)
-		 return rc;
+		return rc;
 
 	lsm = ccc_inode_lsm_get(inode);
 	if (lsm == NULL)
@@ -339,13 +339,10 @@ static int ll_revalidate_dentry(struct dentry *dentry,
  */
 static int ll_revalidate_nd(struct dentry *dentry, unsigned int flags)
 {
-	int rc;
-
 	CDEBUG(D_VFSTRACE, "VFS Op:name=%pd, flags=%u\n",
 	       dentry, flags);
 
-	rc = ll_revalidate_dentry(dentry, flags);
-	return rc;
+	return ll_revalidate_dentry(dentry, flags);
 }
 
 
diff --git a/drivers/staging/lustre/lustre/llite/dir.c b/drivers/staging/lustre/lustre/llite/dir.c
index a182019..a5bc694 100644
--- a/drivers/staging/lustre/lustre/llite/dir.c
+++ b/drivers/staging/lustre/lustre/llite/dir.c
@@ -41,7 +41,7 @@
 #include <linux/fs.h>
 #include <linux/pagemap.h>
 #include <linux/mm.h>
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
 #include <linux/buffer_head.h>   /* for wait_on_buffer */
 #include <linux/pagevec.h>
 #include <linux/prefetch.h>
@@ -1518,6 +1518,7 @@ out_rmdir:
 			lump = (struct lov_user_md *)arg;
 		} else {
 			struct lov_user_mds_data *lmdp;
+
 			lmdp = (struct lov_user_mds_data *)arg;
 			lump = &lmdp->lmd_lmm;
 		}
@@ -1909,21 +1910,21 @@ static loff_t ll_dir_seek(struct file *file, loff_t offset, int origin)
 
 	mutex_lock(&inode->i_mutex);
 	switch (origin) {
-		case SEEK_SET:
-			break;
-		case SEEK_CUR:
-			offset += file->f_pos;
-			break;
-		case SEEK_END:
-			if (offset > 0)
-				goto out;
-			if (api32)
-				offset += LL_DIR_END_OFF_32BIT;
-			else
-				offset += LL_DIR_END_OFF;
-			break;
-		default:
+	case SEEK_SET:
+		break;
+	case SEEK_CUR:
+		offset += file->f_pos;
+		break;
+	case SEEK_END:
+		if (offset > 0)
 			goto out;
+		if (api32)
+			offset += LL_DIR_END_OFF_32BIT;
+		else
+			offset += LL_DIR_END_OFF;
+		break;
+	default:
+		goto out;
 	}
 
 	if (offset >= 0 &&
diff --git a/drivers/staging/lustre/lustre/llite/file.c b/drivers/staging/lustre/lustre/llite/file.c
index 5ebee6c..85e74d1 100644
--- a/drivers/staging/lustre/lustre/llite/file.c
+++ b/drivers/staging/lustre/lustre/llite/file.c
@@ -161,7 +161,7 @@ static int ll_close_inode_openhandle(struct obd_export *md_exp,
 		op_data->op_lease_handle = och->och_lease_handle;
 		op_data->op_attr.ia_valid |= ATTR_SIZE | ATTR_BLOCKS;
 	}
-	epoch_close = (op_data->op_flags & MF_EPOCH_CLOSE);
+	epoch_close = op_data->op_flags & MF_EPOCH_CLOSE;
 	rc = md_close(md_exp, op_data, och->och_mod, &req);
 	if (rc == -EAGAIN) {
 		/* This close must have the epoch closed. */
@@ -197,6 +197,7 @@ static int ll_close_inode_openhandle(struct obd_export *md_exp,
 	}
 	if (rc == 0 && op_data->op_bias & MDS_HSM_RELEASE) {
 		struct mdt_body *body;
+
 		body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
 		if (!(body->valid & OBD_MD_FLRELEASED))
 			rc = -EBUSY;
@@ -269,7 +270,7 @@ static int ll_md_close(struct obd_export *md_exp, struct inode *inode,
 	int lockmode;
 	__u64 flags = LDLM_FL_BLOCK_GRANTED | LDLM_FL_TEST_LOCK;
 	struct lustre_handle lockh;
-	ldlm_policy_data_t policy = {.l_inodebits={MDS_INODELOCK_OPEN}};
+	ldlm_policy_data_t policy = {.l_inodebits = {MDS_INODELOCK_OPEN}};
 	int rc = 0;
 
 	/* clear group lock, if present */
@@ -692,7 +693,7 @@ restart:
 out_och_free:
 	if (rc) {
 		if (och_p && *och_p) {
-			OBD_FREE(*och_p, sizeof (struct obd_client_handle));
+			OBD_FREE(*och_p, sizeof(struct obd_client_handle));
 			*och_p = NULL; /* OBD_FREE writes some magic there */
 			(*och_usecount)--;
 		}
@@ -1711,6 +1712,12 @@ static int ll_do_fiemap(struct inode *inode, struct ll_user_fiemap *fiemap,
 	fm_key.oa.o_oi = lsm->lsm_oi;
 	fm_key.oa.o_valid = OBD_MD_FLID | OBD_MD_FLGROUP;
 
+	if (i_size_read(inode) == 0) {
+		rc = ll_glimpse_size(inode);
+		if (rc)
+			goto out;
+	}
+
 	obdo_from_inode(&fm_key.oa, inode, OBD_MD_FLSIZE);
 	obdo_set_parent_fid(&fm_key.oa, &ll_i2info(inode)->lli_fid);
 	/* If filesize is 0, then there would be no objects for mapping */
@@ -2821,7 +2828,7 @@ int ll_have_md_lock(struct inode *inode, __u64 *bits,  ldlm_mode_t l_req_mode)
 	int i;
 
 	if (!inode)
-	       return 0;
+		return 0;
 
 	fid = &ll_i2info(inode)->lli_fid;
 	CDEBUG(D_INFO, "trying to match res "DFID" mode %s\n", PFID(fid),
@@ -3233,6 +3240,7 @@ void *ll_iocontrol_register(llioc_callback_t cb, int count, unsigned int *cmd)
 
 	return in_data;
 }
+EXPORT_SYMBOL(ll_iocontrol_register);
 
 void ll_iocontrol_unregister(void *magic)
 {
@@ -3257,8 +3265,6 @@ void ll_iocontrol_unregister(void *magic)
 
 	CWARN("didn't find iocontrol register block with magic: %p\n", magic);
 }
-
-EXPORT_SYMBOL(ll_iocontrol_register);
 EXPORT_SYMBOL(ll_iocontrol_unregister);
 
 static enum llioc_iter
diff --git a/drivers/staging/lustre/lustre/llite/llite_close.c b/drivers/staging/lustre/lustre/llite/llite_close.c
index 21b4a50..a94ba02 100644
--- a/drivers/staging/lustre/lustre/llite/llite_close.c
+++ b/drivers/staging/lustre/lustre/llite/llite_close.c
@@ -284,10 +284,8 @@ static void ll_done_writing(struct inode *inode)
 	LASSERT(exp_connect_som(ll_i2mdexp(inode)));
 
 	op_data = kzalloc(sizeof(*op_data), GFP_NOFS);
-	if (!op_data) {
-		CERROR("can't allocate op_data\n");
+	if (!op_data)
 		return;
-	}
 
 	ll_prepare_done_writing(inode, op_data, &och);
 	/* If there is no @och, we do not do D_W yet. */
diff --git a/drivers/staging/lustre/lustre/llite/llite_lib.c b/drivers/staging/lustre/lustre/llite/llite_lib.c
index 0c1b583..bf1ec27 100644
--- a/drivers/staging/lustre/lustre/llite/llite_lib.c
+++ b/drivers/staging/lustre/lustre/llite/llite_lib.c
@@ -87,11 +87,10 @@ static struct ll_sb_info *ll_init_sbi(void)
 
 	si_meminfo(&si);
 	pages = si.totalram - si.totalhigh;
-	if (pages >> (20 - PAGE_CACHE_SHIFT) < 512) {
+	if (pages >> (20 - PAGE_CACHE_SHIFT) < 512)
 		lru_page_max = pages / 2;
-	} else {
+	else
 		lru_page_max = (pages / 4) * 3;
-	}
 
 	/* initialize lru data */
 	atomic_set(&sbi->ll_cache.ccc_users, 0);
@@ -621,7 +620,7 @@ int ll_get_max_mdsize(struct ll_sb_info *sbi, int *lmmsize)
 	rc = obd_get_info(NULL, sbi->ll_md_exp, sizeof(KEY_MAX_EASIZE),
 			  KEY_MAX_EASIZE, &size, lmmsize, NULL);
 	if (rc)
-		CERROR("Get max mdsize error rc %d \n", rc);
+		CERROR("Get max mdsize error rc %d\n", rc);
 
 	return rc;
 }
@@ -978,19 +977,17 @@ int ll_fill_super(struct super_block *sb, struct vfsmount *mnt)
 	CDEBUG(D_CONFIG, "Found profile %s: mdc=%s osc=%s\n", profilenm,
 	       lprof->lp_md, lprof->lp_dt);
 
-	dt = kzalloc(strlen(lprof->lp_dt) + instlen + 2, GFP_NOFS);
+	dt = kasprintf(GFP_NOFS, "%s-%p", lprof->lp_dt, cfg->cfg_instance);
 	if (!dt) {
 		err = -ENOMEM;
 		goto out_free;
 	}
-	sprintf(dt, "%s-%p", lprof->lp_dt, cfg->cfg_instance);
 
-	md = kzalloc(strlen(lprof->lp_md) + instlen + 2, GFP_NOFS);
+	md = kasprintf(GFP_NOFS, "%s-%p", lprof->lp_md, cfg->cfg_instance);
 	if (!md) {
 		err = -ENOMEM;
 		goto out_free;
 	}
-	sprintf(md, "%s-%p", lprof->lp_md, cfg->cfg_instance);
 
 	/* connections, registrations, sb setup */
 	err = client_common_fill_super(sb, md, dt, mnt);
@@ -1432,7 +1429,7 @@ int ll_setattr_raw(struct dentry *dentry, struct iattr *attr, bool hsm_import)
 
 	if (attr->ia_valid & (ATTR_SIZE |
 			      ATTR_ATIME | ATTR_ATIME_SET |
-			      ATTR_MTIME | ATTR_MTIME_SET))
+			      ATTR_MTIME | ATTR_MTIME_SET)) {
 		/* For truncate and utimes sending attributes to OSTs, setting
 		 * mtime/atime to the past will be performed under PW [0:EOF]
 		 * extent lock (new_size:EOF for truncate).  It may seem
@@ -1444,6 +1441,7 @@ int ll_setattr_raw(struct dentry *dentry, struct iattr *attr, bool hsm_import)
 		rc = ll_setattr_ost(inode, attr);
 		if (attr->ia_valid & ATTR_SIZE)
 			up_write(&lli->lli_trunc_sem);
+	}
 out:
 	if (op_data) {
 		if (op_data->op_ioepoch) {
@@ -1608,7 +1606,7 @@ void ll_update_inode(struct inode *inode, struct lustre_md *md)
 	struct lov_stripe_md *lsm = md->lsm;
 	struct ll_sb_info *sbi = ll_i2sbi(inode);
 
-	LASSERT ((lsm != NULL) == ((body->valid & OBD_MD_FLEASIZE) != 0));
+	LASSERT((lsm != NULL) == ((body->valid & OBD_MD_FLEASIZE) != 0));
 	if (lsm != NULL) {
 		if (!lli->lli_has_smd &&
 		    !(sbi->ll_flags & LL_SBI_LAYOUT_LOCK))
@@ -2152,7 +2150,8 @@ int ll_process_config(struct lustre_cfg *lcfg)
 	ptr = strrchr(lustre_cfg_string(lcfg, 0), '-');
 	if (!ptr || !*(++ptr))
 		return -EINVAL;
-	if (sscanf(ptr, "%lx", &x) != 1)
+	rc = kstrtoul(ptr, 16, &x);
+	if (rc != 0)
 		return -EINVAL;
 	sb = (void *)x;
 	/* This better be a real Lustre superblock! */
diff --git a/drivers/staging/lustre/lustre/llite/llite_mmap.c b/drivers/staging/lustre/lustre/llite/llite_mmap.c
index 479bf42..a90214b 100644
--- a/drivers/staging/lustre/lustre/llite/llite_mmap.c
+++ b/drivers/staging/lustre/lustre/llite/llite_mmap.c
@@ -40,7 +40,7 @@
 #include <linux/stat.h>
 #include <linux/errno.h>
 #include <linux/unistd.h>
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
 
 #include <linux/fs.h>
 #include <linux/pagemap.h>
@@ -312,7 +312,7 @@ static int ll_fault0(struct vm_area_struct *vma, struct vm_fault *vmf)
 		vio->u.fault.ft_vmpage    = NULL;
 		vio->u.fault.fault.ft_vmf = vmf;
 		vio->u.fault.fault.ft_flags = 0;
-		vio->u.fault.fault.ft_flags_valid = 0;
+		vio->u.fault.fault.ft_flags_valid = false;
 
 		result = cl_io_loop(env, io);
 
diff --git a/drivers/staging/lustre/lustre/llite/lloop.c b/drivers/staging/lustre/lustre/llite/lloop.c
index 0312488..413a840 100644
--- a/drivers/staging/lustre/lustre/llite/lloop.c
+++ b/drivers/staging/lustre/lustre/llite/lloop.c
@@ -100,8 +100,7 @@
 #include <linux/highmem.h>
 #include <linux/gfp.h>
 #include <linux/pagevec.h>
-
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
 
 #include "../include/lustre_lib.h"
 #include "../include/lustre_lite.h"
@@ -349,7 +348,7 @@ static void loop_make_request(struct request_queue *q, struct bio *old_bio)
 	       old_bio->bi_iter.bi_size);
 
 	spin_lock_irq(&lo->lo_lock);
-	inactive = (lo->lo_state != LLOOP_BOUND);
+	inactive = lo->lo_state != LLOOP_BOUND;
 	spin_unlock_irq(&lo->lo_lock);
 	if (inactive)
 		goto err;
diff --git a/drivers/staging/lustre/lustre/llite/lproc_llite.c b/drivers/staging/lustre/lustre/llite/lproc_llite.c
index aaa13bd..83a9b85 100644
--- a/drivers/staging/lustre/lustre/llite/lproc_llite.c
+++ b/drivers/staging/lustre/lustre/llite/lproc_llite.c
@@ -59,7 +59,7 @@ static int ll_blksize_seq_show(struct seq_file *m, void *v)
 				cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
 				OBD_STATFS_NODELAY);
 	if (!rc)
-	      rc = seq_printf(m, "%u\n", osfs.os_bsize);
+		seq_printf(m, "%u\n", osfs.os_bsize);
 
 	return rc;
 }
@@ -82,8 +82,9 @@ static int ll_kbytestotal_seq_show(struct seq_file *m, void *v)
 		while (blk_size >>= 1)
 			result <<= 1;
 
-		rc = seq_printf(m, "%llu\n", result);
+		seq_printf(m, "%llu\n", result);
 	}
+
 	return rc;
 }
 LPROC_SEQ_FOPS_RO(ll_kbytestotal);
@@ -105,8 +106,9 @@ static int ll_kbytesfree_seq_show(struct seq_file *m, void *v)
 		while (blk_size >>= 1)
 			result <<= 1;
 
-		rc = seq_printf(m, "%llu\n", result);
+		seq_printf(m, "%llu\n", result);
 	}
+
 	return rc;
 }
 LPROC_SEQ_FOPS_RO(ll_kbytesfree);
@@ -128,8 +130,9 @@ static int ll_kbytesavail_seq_show(struct seq_file *m, void *v)
 		while (blk_size >>= 1)
 			result <<= 1;
 
-		rc = seq_printf(m, "%llu\n", result);
+		seq_printf(m, "%llu\n", result);
 	}
+
 	return rc;
 }
 LPROC_SEQ_FOPS_RO(ll_kbytesavail);
@@ -145,7 +148,8 @@ static int ll_filestotal_seq_show(struct seq_file *m, void *v)
 				cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
 				OBD_STATFS_NODELAY);
 	if (!rc)
-		 rc = seq_printf(m, "%llu\n", osfs.os_files);
+		seq_printf(m, "%llu\n", osfs.os_files);
+
 	return rc;
 }
 LPROC_SEQ_FOPS_RO(ll_filestotal);
@@ -161,7 +165,8 @@ static int ll_filesfree_seq_show(struct seq_file *m, void *v)
 				cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
 				OBD_STATFS_NODELAY);
 	if (!rc)
-		 rc = seq_printf(m, "%llu\n", osfs.os_ffree);
+		seq_printf(m, "%llu\n", osfs.os_ffree);
+
 	return rc;
 }
 LPROC_SEQ_FOPS_RO(ll_filesfree);
@@ -169,16 +174,15 @@ LPROC_SEQ_FOPS_RO(ll_filesfree);
 static int ll_client_type_seq_show(struct seq_file *m, void *v)
 {
 	struct ll_sb_info *sbi = ll_s2sbi((struct super_block *)m->private);
-	int rc;
 
 	LASSERT(sbi != NULL);
 
 	if (sbi->ll_flags & LL_SBI_RMT_CLIENT)
-		rc = seq_printf(m, "remote client\n");
+		seq_puts(m, "remote client\n");
 	else
-		rc = seq_printf(m, "local client\n");
+		seq_puts(m, "local client\n");
 
-	return rc;
+	return 0;
 }
 LPROC_SEQ_FOPS_RO(ll_client_type);
 
@@ -187,7 +191,8 @@ static int ll_fstype_seq_show(struct seq_file *m, void *v)
 	struct super_block *sb = (struct super_block *)m->private;
 
 	LASSERT(sb != NULL);
-	return seq_printf(m, "%s\n", sb->s_type->name);
+	seq_printf(m, "%s\n", sb->s_type->name);
+	return 0;
 }
 LPROC_SEQ_FOPS_RO(ll_fstype);
 
@@ -196,7 +201,8 @@ static int ll_sb_uuid_seq_show(struct seq_file *m, void *v)
 	struct super_block *sb = (struct super_block *)m->private;
 
 	LASSERT(sb != NULL);
-	return seq_printf(m, "%s\n", ll_s2sbi(sb)->ll_sb_uuid.uuid);
+	seq_printf(m, "%s\n", ll_s2sbi(sb)->ll_sb_uuid.uuid);
+	return 0;
 }
 LPROC_SEQ_FOPS_RO(ll_sb_uuid);
 
@@ -353,17 +359,18 @@ static int ll_max_cached_mb_seq_show(struct seq_file *m, void *v)
 
 	max_cached_mb = cache->ccc_lru_max >> shift;
 	unused_mb = atomic_read(&cache->ccc_lru_left) >> shift;
-	return seq_printf(m,
-			"users: %d\n"
-			"max_cached_mb: %d\n"
-			"used_mb: %d\n"
-			"unused_mb: %d\n"
-			"reclaim_count: %u\n",
-			atomic_read(&cache->ccc_users),
-			max_cached_mb,
-			max_cached_mb - unused_mb,
-			unused_mb,
-			cache->ccc_lru_shrinkers);
+	seq_printf(m,
+		   "users: %d\n"
+		   "max_cached_mb: %d\n"
+		   "used_mb: %d\n"
+		   "unused_mb: %d\n"
+		   "reclaim_count: %u\n",
+		   atomic_read(&cache->ccc_users),
+		   max_cached_mb,
+		   max_cached_mb - unused_mb,
+		   unused_mb,
+		   cache->ccc_lru_shrinkers);
+	return 0;
 }
 
 static ssize_t ll_max_cached_mb_seq_write(struct file *file,
@@ -467,7 +474,8 @@ static int ll_checksum_seq_show(struct seq_file *m, void *v)
 	struct super_block *sb = m->private;
 	struct ll_sb_info *sbi = ll_s2sbi(sb);
 
-	return seq_printf(m, "%u\n", (sbi->ll_flags & LL_SBI_CHECKSUM) ? 1 : 0);
+	seq_printf(m, "%u\n", (sbi->ll_flags & LL_SBI_CHECKSUM) ? 1 : 0);
+	return 0;
 }
 
 static ssize_t ll_checksum_seq_write(struct file *file,
@@ -503,7 +511,8 @@ static int ll_max_rw_chunk_seq_show(struct seq_file *m, void *v)
 {
 	struct super_block *sb = m->private;
 
-	return seq_printf(m, "%lu\n", ll_s2sbi(sb)->ll_max_rw_chunk);
+	seq_printf(m, "%lu\n", ll_s2sbi(sb)->ll_max_rw_chunk);
+	return 0;
 }
 
 static ssize_t ll_max_rw_chunk_seq_write(struct file *file,
@@ -525,15 +534,14 @@ static int ll_rd_track_id(struct seq_file *m, enum stats_track_type type)
 {
 	struct super_block *sb = m->private;
 
-	if (ll_s2sbi(sb)->ll_stats_track_type == type) {
-		return seq_printf(m, "%d\n",
-				ll_s2sbi(sb)->ll_stats_track_id);
+	if (ll_s2sbi(sb)->ll_stats_track_type == type)
+		seq_printf(m, "%d\n", ll_s2sbi(sb)->ll_stats_track_id);
+	else if (ll_s2sbi(sb)->ll_stats_track_type == STATS_TRACK_ALL)
+		seq_puts(m, "0 (all)\n");
+	else
+		seq_puts(m, "untracked\n");
 
-	} else if (ll_s2sbi(sb)->ll_stats_track_type == STATS_TRACK_ALL) {
-		return seq_printf(m, "0 (all)\n");
-	} else {
-		return seq_printf(m, "untracked\n");
-	}
+	return 0;
 }
 
 static int ll_wr_track_id(const char __user *buffer, unsigned long count,
@@ -601,7 +609,8 @@ static int ll_statahead_max_seq_show(struct seq_file *m, void *v)
 	struct super_block *sb = m->private;
 	struct ll_sb_info *sbi = ll_s2sbi(sb);
 
-	return seq_printf(m, "%u\n", sbi->ll_sa_max);
+	seq_printf(m, "%u\n", sbi->ll_sa_max);
+	return 0;
 }
 
 static ssize_t ll_statahead_max_seq_write(struct file *file,
@@ -631,8 +640,8 @@ static int ll_statahead_agl_seq_show(struct seq_file *m, void *v)
 	struct super_block *sb = m->private;
 	struct ll_sb_info *sbi = ll_s2sbi(sb);
 
-	return seq_printf(m, "%u\n",
-			sbi->ll_flags & LL_SBI_AGL_ENABLED ? 1 : 0);
+	seq_printf(m, "%u\n", sbi->ll_flags & LL_SBI_AGL_ENABLED ? 1 : 0);
+	return 0;
 }
 
 static ssize_t ll_statahead_agl_seq_write(struct file *file,
@@ -661,13 +670,14 @@ static int ll_statahead_stats_seq_show(struct seq_file *m, void *v)
 	struct super_block *sb = m->private;
 	struct ll_sb_info *sbi = ll_s2sbi(sb);
 
-	return seq_printf(m,
-			"statahead total: %u\n"
-			"statahead wrong: %u\n"
-			"agl total: %u\n",
-			atomic_read(&sbi->ll_sa_total),
-			atomic_read(&sbi->ll_sa_wrong),
-			atomic_read(&sbi->ll_agl_total));
+	seq_printf(m,
+		   "statahead total: %u\n"
+		   "statahead wrong: %u\n"
+		   "agl total: %u\n",
+		   atomic_read(&sbi->ll_sa_total),
+		   atomic_read(&sbi->ll_sa_wrong),
+		   atomic_read(&sbi->ll_agl_total));
+	return 0;
 }
 LPROC_SEQ_FOPS_RO(ll_statahead_stats);
 
@@ -676,8 +686,8 @@ static int ll_lazystatfs_seq_show(struct seq_file *m, void *v)
 	struct super_block *sb = m->private;
 	struct ll_sb_info *sbi = ll_s2sbi(sb);
 
-	return seq_printf(m, "%u\n",
-			(sbi->ll_flags & LL_SBI_LAZYSTATFS) ? 1 : 0);
+	seq_printf(m, "%u\n", sbi->ll_flags & LL_SBI_LAZYSTATFS ? 1 : 0);
+	return 0;
 }
 
 static ssize_t ll_lazystatfs_seq_write(struct file *file,
@@ -712,11 +722,12 @@ static int ll_max_easize_seq_show(struct seq_file *m, void *v)
 	if (rc)
 		return rc;
 
-	return seq_printf(m, "%u\n", ealen);
+	seq_printf(m, "%u\n", ealen);
+	return 0;
 }
 LPROC_SEQ_FOPS_RO(ll_max_easize);
 
-static int ll_defult_easize_seq_show(struct seq_file *m, void *v)
+static int ll_default_easize_seq_show(struct seq_file *m, void *v)
 {
 	struct super_block *sb = m->private;
 	struct ll_sb_info *sbi = ll_s2sbi(sb);
@@ -727,9 +738,10 @@ static int ll_defult_easize_seq_show(struct seq_file *m, void *v)
 	if (rc)
 		return rc;
 
-	return seq_printf(m, "%u\n", ealen);
+	seq_printf(m, "%u\n", ealen);
+	return 0;
 }
-LPROC_SEQ_FOPS_RO(ll_defult_easize);
+LPROC_SEQ_FOPS_RO(ll_default_easize);
 
 static int ll_max_cookiesize_seq_show(struct seq_file *m, void *v)
 {
@@ -742,11 +754,12 @@ static int ll_max_cookiesize_seq_show(struct seq_file *m, void *v)
 	if (rc)
 		return rc;
 
-	return seq_printf(m, "%u\n", cookielen);
+	seq_printf(m, "%u\n", cookielen);
+	return 0;
 }
 LPROC_SEQ_FOPS_RO(ll_max_cookiesize);
 
-static int ll_defult_cookiesize_seq_show(struct seq_file *m, void *v)
+static int ll_default_cookiesize_seq_show(struct seq_file *m, void *v)
 {
 	struct super_block *sb = m->private;
 	struct ll_sb_info *sbi = ll_s2sbi(sb);
@@ -757,9 +770,10 @@ static int ll_defult_cookiesize_seq_show(struct seq_file *m, void *v)
 	if (rc)
 		return rc;
 
-	return seq_printf(m, "%u\n", cookielen);
+	seq_printf(m, "%u\n", cookielen);
+	return 0;
 }
-LPROC_SEQ_FOPS_RO(ll_defult_cookiesize);
+LPROC_SEQ_FOPS_RO(ll_default_cookiesize);
 
 static int ll_sbi_flags_seq_show(struct seq_file *m, void *v)
 {
@@ -789,11 +803,10 @@ static int ll_xattr_cache_seq_show(struct seq_file *m, void *v)
 {
 	struct super_block *sb = m->private;
 	struct ll_sb_info *sbi = ll_s2sbi(sb);
-	int rc;
 
-	rc = seq_printf(m, "%u\n", sbi->ll_xattr_cache_enabled);
+	seq_printf(m, "%u\n", sbi->ll_xattr_cache_enabled);
 
-	return rc;
+	return 0;
 }
 
 static ssize_t ll_xattr_cache_seq_write(struct file *file,
@@ -849,9 +862,9 @@ static struct lprocfs_vars lprocfs_llite_obd_vars[] = {
 	{ "statahead_stats",  &ll_statahead_stats_fops, NULL, 0 },
 	{ "lazystatfs",       &ll_lazystatfs_fops, NULL },
 	{ "max_easize",       &ll_max_easize_fops, NULL, 0 },
-	{ "default_easize",   &ll_defult_easize_fops, NULL, 0 },
+	{ "default_easize",   &ll_default_easize_fops, NULL, 0 },
 	{ "max_cookiesize",   &ll_max_cookiesize_fops, NULL, 0 },
-	{ "default_cookiesize", &ll_defult_cookiesize_fops, NULL, 0 },
+	{ "default_cookiesize", &ll_default_cookiesize_fops, NULL, 0 },
 	{ "sbi_flags",	      &ll_sbi_flags_fops, NULL, 0 },
 	{ "xattr_cache",      &ll_xattr_cache_fops, NULL, 0 },
 	{ NULL }
diff --git a/drivers/staging/lustre/lustre/llite/namei.c b/drivers/staging/lustre/lustre/llite/namei.c
index 890ac19..49f1cb0 100644
--- a/drivers/staging/lustre/lustre/llite/namei.c
+++ b/drivers/staging/lustre/lustre/llite/namei.c
@@ -83,7 +83,8 @@ static int ll_set_inode(struct inode *inode, void *opaque)
 
 	lli->lli_fid = body->fid1;
 	if (unlikely(!(body->valid & OBD_MD_FLTYPE))) {
-		CERROR("Can not initialize inode " DFID " without object type: valid = %#llx\n",
+		CERROR("Can not initialize inode " DFID
+		       " without object type: valid = %#llx\n",
 		       PFID(&lli->lli_fid), body->valid);
 		return -EINVAL;
 	}
@@ -600,7 +601,8 @@ static int ll_atomic_open(struct inode *dir, struct dentry *dentry,
 	long long lookup_flags = LOOKUP_OPEN;
 	int rc = 0;
 
-	CDEBUG(D_VFSTRACE, "VFS Op:name=%pd,dir=%lu/%u(%p),file %p,open_flags %x,mode %x opened %d\n",
+	CDEBUG(D_VFSTRACE,
+	       "VFS Op:name=%pd,dir=%lu/%u(%p),file %p,open_flags %x,mode %x opened %d\n",
 	       dentry, dir->i_ino,
 	       dir->i_generation, dir, file, open_flags, mode, *opened);
 
@@ -974,11 +976,12 @@ out:
  * Instead, ll_ddelete() and ll_d_iput() will update it based upon if there
  * is any lock existing. They will recycle dentries and inodes based upon locks
  * too. b=20433 */
-static int ll_unlink(struct inode * dir, struct dentry *dentry)
+static int ll_unlink(struct inode *dir, struct dentry *dentry)
 {
 	struct ptlrpc_request *request = NULL;
 	struct md_op_data *op_data;
 	int rc;
+
 	CDEBUG(D_VFSTRACE, "VFS Op:name=%pd,dir=%lu/%u(%p)\n",
 	       dentry, dir->i_ino, dir->i_generation, dir);
 
@@ -1033,7 +1036,7 @@ static int ll_rmdir(struct inode *dir, struct dentry *dentry)
 	       dentry, dir->i_ino, dir->i_generation, dir);
 
 	op_data = ll_prep_md_op_data(NULL, dir, NULL,
-				     dentry->d_name.name, 
+				     dentry->d_name.name,
 				     dentry->d_name.len,
 				     S_IFDIR, LUSTRE_OPC_ANY, NULL);
 	if (IS_ERR(op_data))
@@ -1111,10 +1114,9 @@ static int ll_rename(struct inode *old_dir, struct dentry *old_dentry,
 	int err;
 
 	CDEBUG(D_VFSTRACE,
-	       "VFS Op:oldname=%pd,src_dir=%lu/%u(%p),newname=%pd,"
-	       "tgt_dir=%lu/%u(%p)\n", old_dentry,
-	       old_dir->i_ino, old_dir->i_generation, old_dir, new_dentry,
-	       new_dir->i_ino, new_dir->i_generation, new_dir);
+	       "VFS Op:oldname=%pd,src_dir=%lu/%u(%p),newname=%pd,tgt_dir=%lu/%u(%p)\n",
+	       old_dentry, old_dir->i_ino, old_dir->i_generation, old_dir,
+	       new_dentry, new_dir->i_ino, new_dir->i_generation, new_dir);
 
 	op_data = ll_prep_md_op_data(NULL, old_dir, new_dir, NULL, 0, 0,
 				     LUSTRE_OPC_ANY, NULL);
diff --git a/drivers/staging/lustre/lustre/llite/rw.c b/drivers/staging/lustre/lustre/llite/rw.c
index 10a0421..991d20c 100644
--- a/drivers/staging/lustre/lustre/llite/rw.c
+++ b/drivers/staging/lustre/lustre/llite/rw.c
@@ -45,7 +45,7 @@
 #include <linux/errno.h>
 #include <linux/unistd.h>
 #include <linux/writeback.h>
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
 
 #include <linux/fs.h>
 #include <linux/pagemap.h>
@@ -750,7 +750,7 @@ int ll_readahead(const struct lu_env *env, struct cl_io *io,
 		/* Note: we only trim the RPC, instead of extending the RPC
 		 * to the boundary, so to avoid reading too much pages during
 		 * random reading. */
-		rpc_boundary = ((end + 1) & (~(PTLRPC_MAX_BRW_PAGES - 1)));
+		rpc_boundary = (end + 1) & (~(PTLRPC_MAX_BRW_PAGES - 1));
 		if (rpc_boundary > 0)
 			rpc_boundary--;
 
diff --git a/drivers/staging/lustre/lustre/llite/rw26.c b/drivers/staging/lustre/lustre/llite/rw26.c
index 2f21304..91442fa 100644
--- a/drivers/staging/lustre/lustre/llite/rw26.c
+++ b/drivers/staging/lustre/lustre/llite/rw26.c
@@ -44,7 +44,7 @@
 #include <linux/stat.h>
 #include <linux/errno.h>
 #include <linux/unistd.h>
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
 
 #include <linux/migrate.h>
 #include <linux/fs.h>
diff --git a/drivers/staging/lustre/lustre/llite/statahead.c b/drivers/staging/lustre/lustre/llite/statahead.c
index 6ad9dd0..b75562c 100644
--- a/drivers/staging/lustre/lustre/llite/statahead.c
+++ b/drivers/staging/lustre/lustre/llite/statahead.c
@@ -84,7 +84,7 @@ struct ll_sa_entry {
 	struct qstr	     se_qstr;
 };
 
-static unsigned int sai_generation = 0;
+static unsigned int sai_generation;
 static DEFINE_SPINLOCK(sai_generation_lock);
 
 static inline int ll_sa_entry_unhashed(struct ll_sa_entry *entry)
@@ -706,11 +706,21 @@ static int ll_statahead_interpret(struct ptlrpc_request *req,
 	struct ll_inode_info     *lli = ll_i2info(dir);
 	struct ll_statahead_info *sai = NULL;
 	struct ll_sa_entry       *entry;
+	__u64			  handle = 0;
 	int		       wakeup;
 
 	if (it_disposition(it, DISP_LOOKUP_NEG))
 		rc = -ENOENT;
 
+	if (rc == 0) {
+		/* release ibits lock ASAP to avoid deadlock when statahead
+		 * thread enqueues lock on parent in readdir and another
+		 * process enqueues lock on child with parent lock held, eg.
+		 * unlink. */
+		handle = it->d.lustre.it_lock_handle;
+		ll_intent_drop_lock(it);
+	}
+
 	spin_lock(&lli->lli_sa_lock);
 	/* stale entry */
 	if (unlikely(lli->lli_sai == NULL ||
@@ -745,8 +755,7 @@ static int ll_statahead_interpret(struct ptlrpc_request *req,
 			 * when statahead thread tries to enqueue lock on parent
 			 * for readpage and other tries to enqueue lock on child
 			 * with parent's lock held, for example: unlink. */
-			entry->se_handle = it->d.lustre.it_lock_handle;
-			ll_intent_drop_lock(it);
+			entry->se_handle = handle;
 			wakeup = sa_received_empty(sai);
 			list_add_tail(&entry->se_list,
 					  &sai->sai_entries_received);
diff --git a/drivers/staging/lustre/lustre/llite/super25.c b/drivers/staging/lustre/lustre/llite/super25.c
index 7c1e02a..a494f62 100644
--- a/drivers/staging/lustre/lustre/llite/super25.c
+++ b/drivers/staging/lustre/lustre/llite/super25.c
@@ -152,9 +152,7 @@ static int __init init_lustre_lite(void)
 
 	do_gettimeofday(&tv);
 	cfs_srand(tv.tv_sec ^ seed[0], tv.tv_usec ^ seed[1]);
-
-	init_timer(&ll_capa_timer);
-	ll_capa_timer.function = ll_capa_timer_callback;
+	setup_timer(&ll_capa_timer, ll_capa_timer_callback, 0);
 	rc = ll_capa_thread_start();
 	if (rc != 0)
 		goto out_proc;
diff --git a/drivers/staging/lustre/lustre/llite/vvp_dev.c b/drivers/staging/lustre/lustre/llite/vvp_dev.c
index 5a1078a..fde41d7 100644
--- a/drivers/staging/lustre/lustre/llite/vvp_dev.c
+++ b/drivers/staging/lustre/lustre/llite/vvp_dev.c
@@ -63,12 +63,12 @@ static struct lu_kmem_descr vvp_caches[] = {
 	{
 		.ckd_cache = &vvp_thread_kmem,
 		.ckd_name  = "vvp_thread_kmem",
-		.ckd_size  = sizeof (struct vvp_thread_info),
+		.ckd_size  = sizeof(struct vvp_thread_info),
 	},
 	{
 		.ckd_cache = &vvp_session_kmem,
 		.ckd_name  = "vvp_session_kmem",
-		.ckd_size  = sizeof (struct vvp_session)
+		.ckd_size  = sizeof(struct vvp_session)
 	},
 	{
 		.ckd_cache = NULL
@@ -90,6 +90,7 @@ static void vvp_key_fini(const struct lu_context *ctx,
 			 struct lu_context_key *key, void *data)
 {
 	struct vvp_thread_info *info = data;
+
 	OBD_SLAB_FREE_PTR(info, vvp_thread_kmem);
 }
 
@@ -108,6 +109,7 @@ static void vvp_session_key_fini(const struct lu_context *ctx,
 				 struct lu_context_key *key, void *data)
 {
 	struct vvp_session *session = data;
+
 	OBD_SLAB_FREE_PTR(session, vvp_session_kmem);
 }
 
@@ -286,7 +288,7 @@ static void vvp_pgcache_id_unpack(loff_t pos, struct vvp_pgcache_id *id)
 
 	id->vpi_index  = pos & 0xffffffff;
 	id->vpi_depth  = (pos >> PGC_DEPTH_SHIFT) & 0xf;
-	id->vpi_bucket = ((unsigned long long)pos >> PGC_OBJ_SHIFT);
+	id->vpi_bucket = (unsigned long long)pos >> PGC_OBJ_SHIFT;
 }
 
 static loff_t vvp_pgcache_id_pack(struct vvp_pgcache_id *id)
diff --git a/drivers/staging/lustre/lustre/llite/xattr_cache.c b/drivers/staging/lustre/lustre/llite/xattr_cache.c
index e2badf1..69ea92a 100644
--- a/drivers/staging/lustre/lustre/llite/xattr_cache.c
+++ b/drivers/staging/lustre/lustre/llite/xattr_cache.c
@@ -132,14 +132,10 @@ static int ll_xattr_cache_add(struct list_head *cache,
 		       xattr->xe_namelen);
 		goto err_name;
 	}
-	xattr->xe_value = kzalloc(xattr_val_len, GFP_NOFS);
-	if (!xattr->xe_value) {
-		CDEBUG(D_CACHE, "failed to alloc xattr value %d\n",
-		       xattr_val_len);
+	xattr->xe_value = kmemdup(xattr_val, xattr_val_len, GFP_NOFS);
+	if (!xattr->xe_value)
 		goto err_value;
-	}
 
-	memcpy(xattr->xe_value, xattr_val, xattr_val_len);
 	xattr->xe_vallen = xattr_val_len;
 	list_add(&xattr->xe_list, cache);
 
@@ -299,13 +295,18 @@ static int ll_xattr_find_get_lock(struct inode *inode,
 
 
 	mutex_lock(&lli->lli_xattrs_enq_lock);
-	/* Try matching first. */
-	mode = ll_take_md_lock(inode, MDS_INODELOCK_XATTR, &lockh, 0, LCK_PR);
-	if (mode != 0) {
-		/* fake oit in mdc_revalidate_lock() manner */
-		oit->d.lustre.it_lock_handle = lockh.cookie;
-		oit->d.lustre.it_lock_mode = mode;
-		goto out;
+	/* inode may have been shrunk and recreated, so data is gone, match lock
+	 * only when data exists. */
+	if (ll_xattr_cache_valid(lli)) {
+		/* Try matching first. */
+		mode = ll_take_md_lock(inode, MDS_INODELOCK_XATTR, &lockh, 0,
+				       LCK_PR);
+		if (mode != 0) {
+			/* fake oit in mdc_revalidate_lock() manner */
+			oit->d.lustre.it_lock_handle = lockh.cookie;
+			oit->d.lustre.it_lock_mode = mode;
+			goto out;
+		}
 	}
 
 	/* Enqueue if the lock isn't cached locally. */
diff --git a/drivers/staging/lustre/lustre/lmv/lmv_obd.c b/drivers/staging/lustre/lustre/lmv/lmv_obd.c
index b779f47..b9459fa 100644
--- a/drivers/staging/lustre/lustre/lmv/lmv_obd.c
+++ b/drivers/staging/lustre/lustre/lmv/lmv_obd.c
@@ -43,7 +43,7 @@
 #include <asm/div64.h>
 #include <linux/seq_file.h>
 #include <linux/namei.h>
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
 
 #include "../include/lustre/lustre_idl.h"
 #include "../include/obd_support.h"
@@ -487,7 +487,7 @@ static int lmv_add_target(struct obd_device *obd, struct obd_uuid *uuidp,
 		__u32 oldsize = 0;
 
 		while (newsize < index + 1)
-			newsize = newsize << 1;
+			newsize <<= 1;
 		OBD_ALLOC(newtgts, sizeof(*newtgts) * newsize);
 		if (newtgts == NULL) {
 			lmv_init_unlock(lmv);
diff --git a/drivers/staging/lustre/lustre/lmv/lproc_lmv.c b/drivers/staging/lustre/lustre/lmv/lproc_lmv.c
index 5be4176..22e5c31 100644
--- a/drivers/staging/lustre/lustre/lmv/lproc_lmv.c
+++ b/drivers/staging/lustre/lustre/lmv/lproc_lmv.c
@@ -40,6 +40,7 @@
 #include <linux/statfs.h>
 #include "../include/lprocfs_status.h"
 #include "../include/obd_class.h"
+#include "lmv_internal.h"
 
 static int lmv_numobd_seq_show(struct seq_file *m, void *v)
 {
@@ -48,7 +49,8 @@ static int lmv_numobd_seq_show(struct seq_file *m, void *v)
 
 	LASSERT(dev != NULL);
 	desc = &dev->u.lmv.desc;
-	return seq_printf(m, "%u\n", desc->ld_tgt_count);
+	seq_printf(m, "%u\n", desc->ld_tgt_count);
+	return 0;
 }
 LPROC_SEQ_FOPS_RO(lmv_numobd);
 
@@ -82,7 +84,8 @@ static int lmv_placement_seq_show(struct seq_file *m, void *v)
 
 	LASSERT(dev != NULL);
 	lmv = &dev->u.lmv;
-	return seq_printf(m, "%s\n", placement_policy2name(lmv->lmv_placement));
+	seq_printf(m, "%s\n", placement_policy2name(lmv->lmv_placement));
+	return 0;
 }
 
 #define MAX_POLICY_STRING_SIZE 64
@@ -130,7 +133,8 @@ static int lmv_activeobd_seq_show(struct seq_file *m, void *v)
 
 	LASSERT(dev != NULL);
 	desc = &dev->u.lmv.desc;
-	return seq_printf(m, "%u\n", desc->ld_active_tgt_count);
+	seq_printf(m, "%u\n", desc->ld_active_tgt_count);
+	return 0;
 }
 LPROC_SEQ_FOPS_RO(lmv_activeobd);
 
@@ -141,7 +145,8 @@ static int lmv_desc_uuid_seq_show(struct seq_file *m, void *v)
 
 	LASSERT(dev != NULL);
 	lmv = &dev->u.lmv;
-	return seq_printf(m, "%s\n", lmv->desc.ld_uuid.uuid);
+	seq_printf(m, "%s\n", lmv->desc.ld_uuid.uuid);
+	return 0;
 }
 LPROC_SEQ_FOPS_RO(lmv_desc_uuid);
 
@@ -171,8 +176,10 @@ static int lmv_tgt_seq_show(struct seq_file *p, void *v)
 
 	if (tgt == NULL)
 		return 0;
-	return seq_printf(p, "%d: %s %sACTIVE\n", tgt->ltd_idx,
-			  tgt->ltd_uuid.uuid, tgt->ltd_active ? "" : "IN");
+	seq_printf(p, "%d: %s %sACTIVE\n",
+		   tgt->ltd_idx, tgt->ltd_uuid.uuid,
+		   tgt->ltd_active ? "" : "IN");
+	return 0;
 }
 
 static struct seq_operations lmv_tgt_sops = {
diff --git a/drivers/staging/lustre/lustre/lov/lov_dev.c b/drivers/staging/lustre/lustre/lov/lov_dev.c
index 796a015..711b837 100644
--- a/drivers/staging/lustre/lustre/lov/lov_dev.c
+++ b/drivers/staging/lustre/lustre/lov/lov_dev.c
@@ -60,7 +60,7 @@ struct kmem_cache *lovsub_req_kmem;
 struct kmem_cache *lov_lock_link_kmem;
 
 /** Lock class of lov_device::ld_mutex. */
-struct lock_class_key cl_lov_device_mutex_class;
+static struct lock_class_key cl_lov_device_mutex_class;
 
 struct lu_kmem_descr lov_caches[] = {
 	{
diff --git a/drivers/staging/lustre/lustre/lov/lov_ea.c b/drivers/staging/lustre/lustre/lov/lov_ea.c
index e9ec39c..2bcfaea 100644
--- a/drivers/staging/lustre/lustre/lov/lov_ea.c
+++ b/drivers/staging/lustre/lustre/lov/lov_ea.c
@@ -209,8 +209,8 @@ static int lsm_lmm_verify_v1(struct lov_mds_md_v1 *lmm, int lmm_bytes,
 	return lsm_lmm_verify_common(lmm, lmm_bytes, *stripe_count);
 }
 
-int lsm_unpackmd_v1(struct lov_obd *lov, struct lov_stripe_md *lsm,
-		    struct lov_mds_md_v1 *lmm)
+static int lsm_unpackmd_v1(struct lov_obd *lov, struct lov_stripe_md *lsm,
+			   struct lov_mds_md_v1 *lmm)
 {
 	struct lov_oinfo *loi;
 	int i;
@@ -227,6 +227,9 @@ int lsm_unpackmd_v1(struct lov_obd *lov, struct lov_stripe_md *lsm,
 		ostid_le_to_cpu(&lmm->lmm_objects[i].l_ost_oi, &loi->loi_oi);
 		loi->loi_ost_idx = le32_to_cpu(lmm->lmm_objects[i].l_ost_idx);
 		loi->loi_ost_gen = le32_to_cpu(lmm->lmm_objects[i].l_ost_gen);
+		if (lov_oinfo_is_dummy(loi))
+			continue;
+
 		if (loi->loi_ost_idx >= lov->desc.ld_tgt_count) {
 			CERROR("OST index %d more than OST count %d\n",
 			       loi->loi_ost_idx, lov->desc.ld_tgt_count);
@@ -287,8 +290,8 @@ static int lsm_lmm_verify_v3(struct lov_mds_md *lmmv1, int lmm_bytes,
 				     *stripe_count);
 }
 
-int lsm_unpackmd_v3(struct lov_obd *lov, struct lov_stripe_md *lsm,
-		    struct lov_mds_md *lmmv1)
+static int lsm_unpackmd_v3(struct lov_obd *lov, struct lov_stripe_md *lsm,
+			   struct lov_mds_md *lmmv1)
 {
 	struct lov_mds_md_v3 *lmm;
 	struct lov_oinfo *loi;
@@ -314,6 +317,9 @@ int lsm_unpackmd_v3(struct lov_obd *lov, struct lov_stripe_md *lsm,
 		ostid_le_to_cpu(&lmm->lmm_objects[i].l_ost_oi, &loi->loi_oi);
 		loi->loi_ost_idx = le32_to_cpu(lmm->lmm_objects[i].l_ost_idx);
 		loi->loi_ost_gen = le32_to_cpu(lmm->lmm_objects[i].l_ost_gen);
+		if (lov_oinfo_is_dummy(loi))
+			continue;
+
 		if (loi->loi_ost_idx >= lov->desc.ld_tgt_count) {
 			CERROR("OST index %d more than OST count %d\n",
 			       loi->loi_ost_idx, lov->desc.ld_tgt_count);
diff --git a/drivers/staging/lustre/lustre/lov/lov_internal.h b/drivers/staging/lustre/lustre/lov/lov_internal.h
index 8c8508b..b644acc 100644
--- a/drivers/staging/lustre/lustre/lov/lov_internal.h
+++ b/drivers/staging/lustre/lustre/lov/lov_internal.h
@@ -304,4 +304,16 @@ static inline struct lov_stripe_md *lsm_addref(struct lov_stripe_md *lsm)
 	return lsm;
 }
 
+static inline bool lov_oinfo_is_dummy(const struct lov_oinfo *loi)
+{
+	if (unlikely(loi->loi_oi.oi.oi_id == 0 &&
+		     loi->loi_oi.oi.oi_seq == 0 &&
+		     loi->loi_ost_idx == 0 &&
+		     loi->loi_ost_gen == 0))
+		return true;
+
+	return false;
+}
+
+
 #endif
diff --git a/drivers/staging/lustre/lustre/lov/lov_io.c b/drivers/staging/lustre/lustre/lov/lov_io.c
index f1f6db3..cf96e0d 100644
--- a/drivers/staging/lustre/lustre/lov/lov_io.c
+++ b/drivers/staging/lustre/lustre/lov/lov_io.c
@@ -148,6 +148,9 @@ static int lov_io_sub_init(const struct lu_env *env, struct lov_io *lio,
 	LASSERT(sub->sub_env == NULL);
 	LASSERT(sub->sub_stripe < lio->lis_stripe_count);
 
+	if (unlikely(lov_r0(lov)->lo_sub[stripe] == NULL))
+		return -EIO;
+
 	result = 0;
 	sub->sub_io_initialized = 0;
 	sub->sub_borrowed = 0;
@@ -391,7 +394,16 @@ static int lov_io_iter_init(const struct lu_env *env,
 					   endpos, &start, &end))
 			continue;
 
-		end = lov_offset_mod(end, +1);
+		if (unlikely(lov_r0(lio->lis_object)->lo_sub[stripe] == NULL)) {
+			if (ios->cis_io->ci_type == CIT_READ ||
+			    ios->cis_io->ci_type == CIT_WRITE ||
+			    ios->cis_io->ci_type == CIT_FAULT)
+				return -EIO;
+
+			continue;
+		}
+
+		end = lov_offset_mod(end, 1);
 		sub = lov_sub_get(env, lio, stripe);
 		if (!IS_ERR(sub)) {
 			lov_io_sub_inherit(sub->sub_io, lio, stripe,
@@ -913,7 +925,7 @@ int lov_io_init_empty(const struct lu_env *env, struct cl_object *obj,
 		break;
 	case CIT_FSYNC:
 	case CIT_SETATTR:
-		result = +1;
+		result = 1;
 		break;
 	case CIT_WRITE:
 		result = -EBADF;
diff --git a/drivers/staging/lustre/lustre/lov/lov_lock.c b/drivers/staging/lustre/lustre/lov/lov_lock.c
index 49e6942..f2eca56 100644
--- a/drivers/staging/lustre/lustre/lov/lov_lock.c
+++ b/drivers/staging/lustre/lustre/lov/lov_lock.c
@@ -308,7 +308,8 @@ static int lov_lock_sub_init(const struct lu_env *env,
 		 * XXX for wide striping smarter algorithm is desirable,
 		 * breaking out of the loop, early.
 		 */
-		if (lov_stripe_intersects(loo->lo_lsm, i,
+		if (likely(r0->lo_sub[i] != NULL) &&
+		    lov_stripe_intersects(loo->lo_lsm, i,
 					  file_start, file_end, &start, &end))
 			nr++;
 	}
@@ -326,7 +327,8 @@ static int lov_lock_sub_init(const struct lu_env *env,
 	 * top-lock.
 	 */
 	for (i = 0, nr = 0; i < r0->lo_nr; ++i) {
-		if (lov_stripe_intersects(loo->lo_lsm, i,
+		if (likely(r0->lo_sub[i] != NULL) &&
+		    lov_stripe_intersects(loo->lo_lsm, i,
 					  file_start, file_end, &start, &end)) {
 			struct cl_lock_descr *descr;
 
@@ -914,10 +916,22 @@ static int lov_lock_stripe_is_matching(const struct lu_env *env,
 	 */
 	start = cl_offset(&lov->lo_cl, descr->cld_start);
 	end   = cl_offset(&lov->lo_cl, descr->cld_end + 1) - 1;
-	result = end - start <= lsm->lsm_stripe_size &&
-		 stripe == lov_stripe_number(lsm, start) &&
-		 stripe == lov_stripe_number(lsm, end);
-	if (result) {
+	result = 0;
+	/* glimpse should work on the object with LOV EA hole. */
+	if (end - start <= lsm->lsm_stripe_size) {
+		int idx;
+
+		idx = lov_stripe_number(lsm, start);
+		if (idx == stripe ||
+		    unlikely(lov_r0(lov)->lo_sub[idx] == NULL)) {
+			idx = lov_stripe_number(lsm, end);
+			if (idx == stripe ||
+			    unlikely(lov_r0(lov)->lo_sub[idx] == NULL))
+				result = 1;
+		}
+	}
+
+	if (result != 0) {
 		struct cl_lock_descr *subd = &lov_env_info(env)->lti_ldescr;
 		u64 sub_start;
 		u64 sub_end;
diff --git a/drivers/staging/lustre/lustre/lov/lov_obd.c b/drivers/staging/lustre/lustre/lov/lov_obd.c
index ea503d2..0278157 100644
--- a/drivers/staging/lustre/lustre/lov/lov_obd.c
+++ b/drivers/staging/lustre/lustre/lov/lov_obd.c
@@ -553,7 +553,7 @@ static int lov_add_target(struct obd_device *obd, struct obd_uuid *uuidp,
 
 		newsize = max_t(__u32, lov->lov_tgt_size, 2);
 		while (newsize < index + 1)
-			newsize = newsize << 1;
+			newsize <<= 1;
 		OBD_ALLOC(newtgts, sizeof(*newtgts) * newsize);
 		if (newtgts == NULL) {
 			mutex_unlock(&lov->lov_lock);
@@ -1011,9 +1011,13 @@ static int lov_recreate(struct obd_export *exp, struct obdo *src_oa,
 	}
 
 	for (i = 0; i < lsm->lsm_stripe_count; i++) {
-		if (lsm->lsm_oinfo[i]->loi_ost_idx == ost_idx) {
-			if (ostid_id(&lsm->lsm_oinfo[i]->loi_oi) !=
-					ostid_id(&src_oa->o_oi)) {
+		struct lov_oinfo *loi = lsm->lsm_oinfo[i];
+
+		if (lov_oinfo_is_dummy(loi))
+			continue;
+
+		if (loi->loi_ost_idx == ost_idx) {
+			if (ostid_id(&loi->loi_oi) != ostid_id(&src_oa->o_oi)) {
 				rc = -EINVAL;
 				goto out;
 			}
@@ -1305,10 +1309,14 @@ static int lov_find_cbdata(struct obd_export *exp,
 		struct lov_stripe_md submd;
 		struct lov_oinfo *loi = lsm->lsm_oinfo[i];
 
+		if (lov_oinfo_is_dummy(loi))
+			continue;
+
 		if (!lov->lov_tgts[loi->loi_ost_idx]) {
-			CDEBUG(D_HA, "lov idx %d NULL \n", loi->loi_ost_idx);
+			CDEBUG(D_HA, "lov idx %d NULL\n", loi->loi_ost_idx);
 			continue;
 		}
+
 		submd.lsm_oi = loi->loi_oi;
 		submd.lsm_stripe_count = 0;
 		rc = obd_find_cbdata(lov->lov_tgts[loi->loi_ost_idx]->ltd_exp,
@@ -1601,9 +1609,9 @@ static int lov_iocontrol(unsigned int cmd, struct obd_export *exp, int len,
  * \param fm_end logical end of mapping
  * \param start_stripe starting stripe will be returned in this
  */
-u64 fiemap_calc_fm_end_offset(struct ll_user_fiemap *fiemap,
-				   struct lov_stripe_md *lsm, u64 fm_start,
-				   u64 fm_end, int *start_stripe)
+static u64 fiemap_calc_fm_end_offset(struct ll_user_fiemap *fiemap,
+				     struct lov_stripe_md *lsm, u64 fm_start,
+				     u64 fm_end, int *start_stripe)
 {
 	u64 local_end = fiemap->fm_extents[0].fe_logical;
 	u64 lun_start, lun_end;
@@ -1616,8 +1624,12 @@ u64 fiemap_calc_fm_end_offset(struct ll_user_fiemap *fiemap,
 
 	/* Find out stripe_no from ost_index saved in the fe_device */
 	for (i = 0; i < lsm->lsm_stripe_count; i++) {
-		if (lsm->lsm_oinfo[i]->loi_ost_idx ==
-					fiemap->fm_extents[0].fe_device) {
+		struct lov_oinfo *oinfo = lsm->lsm_oinfo[i];
+
+		if (lov_oinfo_is_dummy(oinfo))
+			continue;
+
+		if (oinfo->loi_ost_idx == fiemap->fm_extents[0].fe_device) {
 			stripe_no = i;
 			break;
 		}
@@ -1658,17 +1670,17 @@ u64 fiemap_calc_fm_end_offset(struct ll_user_fiemap *fiemap,
  *
  * \retval last_stripe return the last stripe of the mapping
  */
-int fiemap_calc_last_stripe(struct lov_stripe_md *lsm, u64 fm_start,
-			    u64 fm_end, int start_stripe,
-			    int *stripe_count)
+static int fiemap_calc_last_stripe(struct lov_stripe_md *lsm, u64 fm_start,
+				   u64 fm_end, int start_stripe,
+				   int *stripe_count)
 {
 	int last_stripe;
 	u64 obd_start, obd_end;
 	int i, j;
 
 	if (fm_end - fm_start > lsm->lsm_stripe_size * lsm->lsm_stripe_count) {
-		last_stripe = (start_stripe < 1 ? lsm->lsm_stripe_count - 1 :
-							      start_stripe - 1);
+		last_stripe = start_stripe < 1 ? lsm->lsm_stripe_count - 1 :
+							      start_stripe - 1;
 		*stripe_count = lsm->lsm_stripe_count;
 	} else {
 		for (j = 0, i = start_stripe; j < lsm->lsm_stripe_count;
@@ -1694,10 +1706,10 @@ int fiemap_calc_last_stripe(struct lov_stripe_md *lsm, u64 fm_start,
  * \param ext_count number of extents to be copied
  * \param current_extent where to start copying in main extent array
  */
-void fiemap_prepare_and_copy_exts(struct ll_user_fiemap *fiemap,
-				  struct ll_fiemap_extent *lcl_fm_ext,
-				  int ost_index, unsigned int ext_count,
-				  int current_extent)
+static void fiemap_prepare_and_copy_exts(struct ll_user_fiemap *fiemap,
+					 struct ll_fiemap_extent *lcl_fm_ext,
+					 int ost_index, unsigned int ext_count,
+					 int current_extent)
 {
 	char *to;
 	int ext;
@@ -1795,6 +1807,11 @@ static int lov_fiemap(struct lov_obd *lov, __u32 keylen, void *key,
 					   &lun_start, &obd_object_end)) == 0)
 			continue;
 
+		if (lov_oinfo_is_dummy(lsm->lsm_oinfo[cur_stripe])) {
+			rc = -EIO;
+			goto out;
+		}
+
 		/* If this is a continuation FIEMAP call and we are on
 		 * starting stripe then lun_start needs to be set to
 		 * fm_end_offset */
@@ -1985,6 +2002,9 @@ static int lov_get_info(const struct lu_env *env, struct obd_export *exp,
 		 * be NULL and won't match the lock's export. */
 		for (i = 0; i < lsm->lsm_stripe_count; i++) {
 			loi = lsm->lsm_oinfo[i];
+			if (lov_oinfo_is_dummy(loi))
+				continue;
+
 			if (!lov->lov_tgts[loi->loi_ost_idx])
 				continue;
 			if (lov->lov_tgts[loi->loi_ost_idx]->ltd_exp ==
@@ -2290,7 +2310,7 @@ out:
 	return rc;
 }
 
-struct obd_ops lov_obd_ops = {
+static struct obd_ops lov_obd_ops = {
 	.o_owner	       = THIS_MODULE,
 	.o_setup	       = lov_setup,
 	.o_precleanup	  = lov_precleanup,
@@ -2324,7 +2344,7 @@ struct obd_ops lov_obd_ops = {
 
 struct kmem_cache *lov_oinfo_slab;
 
-int __init lov_init(void)
+static int __init lov_init(void)
 {
 	struct lprocfs_static_vars lvars = { NULL };
 	int rc;
diff --git a/drivers/staging/lustre/lustre/lov/lov_object.c b/drivers/staging/lustre/lustre/lov/lov_object.c
index 4cab730..a22342f 100644
--- a/drivers/staging/lustre/lustre/lov/lov_object.c
+++ b/drivers/staging/lustre/lustre/lov/lov_object.c
@@ -42,6 +42,7 @@
 #define DEBUG_SUBSYSTEM S_LOV
 
 #include "lov_cl_internal.h"
+#include "../include/lclient.h"
 
 /** \addtogroup lov
  *  @{
@@ -230,6 +231,9 @@ static int lov_init_raid0(const struct lu_env *env,
 			struct lov_oinfo *oinfo = lsm->lsm_oinfo[i];
 			int ost_idx = oinfo->loi_ost_idx;
 
+			if (lov_oinfo_is_dummy(oinfo))
+				continue;
+
 			result = ostid_to_fid(ofid, &oinfo->loi_oi,
 					      oinfo->loi_ost_idx);
 			if (result != 0)
@@ -563,7 +567,7 @@ static const struct lov_layout_operations lov_dispatch[] = {
 /**
  * Return lov_layout_type associated with a given lsm
  */
-enum lov_layout_type lov_type(struct lov_stripe_md *lsm)
+static enum lov_layout_type lov_type(struct lov_stripe_md *lsm)
 {
 	if (lsm == NULL)
 		return LLT_EMPTY;
@@ -973,6 +977,10 @@ int lov_read_and_clear_async_rc(struct cl_object *clob)
 			LASSERT(lsm != NULL);
 			for (i = 0; i < lsm->lsm_stripe_count; i++) {
 				struct lov_oinfo *loi = lsm->lsm_oinfo[i];
+
+				if (lov_oinfo_is_dummy(loi))
+					continue;
+
 				if (loi->loi_ar.ar_rc && !rc)
 					rc = loi->loi_ar.ar_rc;
 				loi->loi_ar.ar_rc = 0;
diff --git a/drivers/staging/lustre/lustre/lov/lov_pool.c b/drivers/staging/lustre/lustre/lov/lov_pool.c
index 0e0ea60..d96163d 100644
--- a/drivers/staging/lustre/lustre/lov/lov_pool.c
+++ b/drivers/staging/lustre/lustre/lov/lov_pool.c
@@ -71,7 +71,7 @@ void lov_pool_putref(struct pool_desc *pool)
 	}
 }
 
-void lov_pool_putref_locked(struct pool_desc *pool)
+static void lov_pool_putref_locked(struct pool_desc *pool)
 {
 	CDEBUG(D_INFO, "pool %p\n", pool);
 	LASSERT(atomic_read(&pool->pool_refcount) > 1);
diff --git a/drivers/staging/lustre/lustre/lov/lov_request.c b/drivers/staging/lustre/lustre/lov/lov_request.c
index 7358b9d..933e2d1 100644
--- a/drivers/staging/lustre/lustre/lov/lov_request.c
+++ b/drivers/staging/lustre/lustre/lov/lov_request.c
@@ -299,6 +299,9 @@ int lov_prep_getattr_set(struct obd_export *exp, struct obd_info *oinfo,
 		struct lov_request *req;
 
 		loi = oinfo->oi_md->lsm_oinfo[i];
+		if (lov_oinfo_is_dummy(loi))
+			continue;
+
 		if (!lov_check_and_wait_active(lov, loi->loi_ost_idx)) {
 			CDEBUG(D_HA, "lov idx %d inactive\n", loi->loi_ost_idx);
 			if (oinfo->oi_oa->o_valid & OBD_MD_FLEPOCH) {
@@ -384,6 +387,9 @@ int lov_prep_destroy_set(struct obd_export *exp, struct obd_info *oinfo,
 		struct lov_request *req;
 
 		loi = lsm->lsm_oinfo[i];
+		if (lov_oinfo_is_dummy(loi))
+			continue;
+
 		if (!lov_check_and_wait_active(lov, loi->loi_ost_idx)) {
 			CDEBUG(D_HA, "lov idx %d inactive\n", loi->loi_ost_idx);
 			continue;
@@ -497,6 +503,9 @@ int lov_prep_setattr_set(struct obd_export *exp, struct obd_info *oinfo,
 		struct lov_oinfo *loi = oinfo->oi_md->lsm_oinfo[i];
 		struct lov_request *req;
 
+		if (lov_oinfo_is_dummy(loi))
+			continue;
+
 		if (!lov_check_and_wait_active(lov, loi->loi_ost_idx)) {
 			CDEBUG(D_HA, "lov idx %d inactive\n", loi->loi_ost_idx);
 			continue;
diff --git a/drivers/staging/lustre/lustre/lov/lproc_lov.c b/drivers/staging/lustre/lustre/lov/lproc_lov.c
index c99f2f4..174cbf5 100644
--- a/drivers/staging/lustre/lustre/lov/lproc_lov.c
+++ b/drivers/staging/lustre/lustre/lov/lproc_lov.c
@@ -35,7 +35,7 @@
  */
 #define DEBUG_SUBSYSTEM S_CLASS
 
-#include <asm/statfs.h>
+#include <linux/statfs.h>
 #include "../include/lprocfs_status.h"
 #include "../include/obd_class.h"
 #include <linux/seq_file.h>
@@ -48,7 +48,8 @@ static int lov_stripesize_seq_show(struct seq_file *m, void *v)
 
 	LASSERT(dev != NULL);
 	desc = &dev->u.lov.desc;
-	return seq_printf(m, "%llu\n", desc->ld_default_stripe_size);
+	seq_printf(m, "%llu\n", desc->ld_default_stripe_size);
+	return 0;
 }
 
 static ssize_t lov_stripesize_seq_write(struct file *file,
@@ -79,7 +80,8 @@ static int lov_stripeoffset_seq_show(struct seq_file *m, void *v)
 
 	LASSERT(dev != NULL);
 	desc = &dev->u.lov.desc;
-	return seq_printf(m, "%llu\n", desc->ld_default_stripe_offset);
+	seq_printf(m, "%llu\n", desc->ld_default_stripe_offset);
+	return 0;
 }
 
 static ssize_t lov_stripeoffset_seq_write(struct file *file,
@@ -109,7 +111,8 @@ static int lov_stripetype_seq_show(struct seq_file *m, void *v)
 
 	LASSERT(dev != NULL);
 	desc = &dev->u.lov.desc;
-	return seq_printf(m, "%u\n", desc->ld_pattern);
+	seq_printf(m, "%u\n", desc->ld_pattern);
+	return 0;
 }
 
 static ssize_t lov_stripetype_seq_write(struct file *file,
@@ -139,8 +142,8 @@ static int lov_stripecount_seq_show(struct seq_file *m, void *v)
 
 	LASSERT(dev != NULL);
 	desc = &dev->u.lov.desc;
-	return seq_printf(m, "%d\n",
-			(__s16)(desc->ld_default_stripe_count + 1) - 1);
+	seq_printf(m, "%d\n", (__s16)(desc->ld_default_stripe_count + 1) - 1);
+	return 0;
 }
 
 static ssize_t lov_stripecount_seq_write(struct file *file,
@@ -170,7 +173,8 @@ static int lov_numobd_seq_show(struct seq_file *m, void *v)
 
 	LASSERT(dev != NULL);
 	desc = &dev->u.lov.desc;
-	return seq_printf(m, "%u\n", desc->ld_tgt_count);
+	seq_printf(m, "%u\n", desc->ld_tgt_count);
+	return 0;
 }
 LPROC_SEQ_FOPS_RO(lov_numobd);
 
@@ -181,7 +185,8 @@ static int lov_activeobd_seq_show(struct seq_file *m, void *v)
 
 	LASSERT(dev != NULL);
 	desc = &dev->u.lov.desc;
-	return seq_printf(m, "%u\n", desc->ld_active_tgt_count);
+	seq_printf(m, "%u\n", desc->ld_active_tgt_count);
+	return 0;
 }
 LPROC_SEQ_FOPS_RO(lov_activeobd);
 
@@ -192,7 +197,8 @@ static int lov_desc_uuid_seq_show(struct seq_file *m, void *v)
 
 	LASSERT(dev != NULL);
 	lov = &dev->u.lov;
-	return seq_printf(m, "%s\n", lov->desc.ld_uuid.uuid);
+	seq_printf(m, "%s\n", lov->desc.ld_uuid.uuid);
+	return 0;
 }
 LPROC_SEQ_FOPS_RO(lov_desc_uuid);
 
@@ -228,12 +234,14 @@ static void *lov_tgt_seq_next(struct seq_file *p, void *v, loff_t *pos)
 static int lov_tgt_seq_show(struct seq_file *p, void *v)
 {
 	struct lov_tgt_desc *tgt = v;
-	return seq_printf(p, "%d: %s %sACTIVE\n", tgt->ltd_index,
-			  obd_uuid2str(&tgt->ltd_uuid),
-			  tgt->ltd_active ? "" : "IN");
+
+	seq_printf(p, "%d: %s %sACTIVE\n",
+		   tgt->ltd_index, obd_uuid2str(&tgt->ltd_uuid),
+		   tgt->ltd_active ? "" : "IN");
+	return 0;
 }
 
-struct seq_operations lov_tgt_sops = {
+static const struct seq_operations lov_tgt_sops = {
 	.start = lov_tgt_seq_start,
 	.stop = lov_tgt_seq_stop,
 	.next = lov_tgt_seq_next,
@@ -262,7 +270,7 @@ LPROC_SEQ_FOPS_RO_TYPE(lov, kbytestotal);
 LPROC_SEQ_FOPS_RO_TYPE(lov, kbytesfree);
 LPROC_SEQ_FOPS_RO_TYPE(lov, kbytesavail);
 
-struct lprocfs_vars lprocfs_lov_obd_vars[] = {
+static struct lprocfs_vars lprocfs_lov_obd_vars[] = {
 	{ "uuid",	  &lov_uuid_fops,	  NULL, 0 },
 	{ "stripesize",   &lov_stripesize_fops,   NULL },
 	{ "stripeoffset", &lov_stripeoffset_fops, NULL },
diff --git a/drivers/staging/lustre/lustre/mdc/lproc_mdc.c b/drivers/staging/lustre/lustre/mdc/lproc_mdc.c
index c791941..acfe08e 100644
--- a/drivers/staging/lustre/lustre/mdc/lproc_mdc.c
+++ b/drivers/staging/lustre/lustre/mdc/lproc_mdc.c
@@ -38,17 +38,18 @@
 #include <linux/vfs.h>
 #include "../include/obd_class.h"
 #include "../include/lprocfs_status.h"
+#include "mdc_internal.h"
 
 static int mdc_max_rpcs_in_flight_seq_show(struct seq_file *m, void *v)
 {
 	struct obd_device *dev = m->private;
 	struct client_obd *cli = &dev->u.cli;
-	int rc;
 
 	client_obd_list_lock(&cli->cl_loi_list_lock);
-	rc = seq_printf(m, "%u\n", cli->cl_max_rpcs_in_flight);
+	seq_printf(m, "%u\n", cli->cl_max_rpcs_in_flight);
 	client_obd_list_unlock(&cli->cl_loi_list_lock);
-	return rc;
+
+	return 0;
 }
 
 static ssize_t mdc_max_rpcs_in_flight_seq_write(struct file *file,
diff --git a/drivers/staging/lustre/lustre/mdc/mdc_request.c b/drivers/staging/lustre/lustre/mdc/mdc_request.c
index ef27447..f8ef5fe 100644
--- a/drivers/staging/lustre/lustre/mdc/mdc_request.c
+++ b/drivers/staging/lustre/lustre/mdc/mdc_request.c
@@ -481,6 +481,9 @@ static int mdc_unpack_acl(struct ptlrpc_request *req, struct lustre_md *md)
 		return -EPROTO;
 
 	acl = posix_acl_from_xattr(&init_user_ns, buf, body->aclsize);
+	if (acl == NULL)
+		return 0;
+
 	if (IS_ERR(acl)) {
 		rc = PTR_ERR(acl);
 		CERROR("convert xattr to acl: %d\n", rc);
@@ -2707,14 +2710,12 @@ static struct md_ops mdc_md_ops = {
 
 static int __init mdc_init(void)
 {
-	int rc;
 	struct lprocfs_static_vars lvars = { NULL };
 
 	lprocfs_mdc_init_vars(&lvars);
 
-	rc = class_register_type(&mdc_obd_ops, &mdc_md_ops, lvars.module_vars,
+	return class_register_type(&mdc_obd_ops, &mdc_md_ops, lvars.module_vars,
 				 LUSTRE_MDC_NAME, NULL);
-	return rc;
 }
 
 static void /*__exit*/ mdc_exit(void)
diff --git a/drivers/staging/lustre/lustre/mgc/mgc_request.c b/drivers/staging/lustre/lustre/mgc/mgc_request.c
index 60d2b0f..7947aec 100644
--- a/drivers/staging/lustre/lustre/mgc/mgc_request.c
+++ b/drivers/staging/lustre/lustre/mgc/mgc_request.c
@@ -95,7 +95,7 @@ int mgc_fsname2resid(char *fsname, struct ldlm_res_id *res_id, int type)
 }
 EXPORT_SYMBOL(mgc_fsname2resid);
 
-int mgc_logname2resid(char *logname, struct ldlm_res_id *res_id, int type)
+static int mgc_logname2resid(char *logname, struct ldlm_res_id *res_id, int type)
 {
 	char *name_end;
 	int len;
@@ -160,7 +160,7 @@ struct config_llog_data *config_log_find(char *logname,
 {
 	struct config_llog_data *cld;
 	struct config_llog_data *found = NULL;
-	void *		   instance;
+	void *instance;
 
 	LASSERT(logname != NULL);
 
@@ -452,10 +452,14 @@ static int config_log_end(char *logname, struct config_llog_instance *cfg)
 int lprocfs_mgc_rd_ir_state(struct seq_file *m, void *data)
 {
 	struct obd_device       *obd = data;
-	struct obd_import       *imp = obd->u.cli.cl_import;
-	struct obd_connect_data *ocd = &imp->imp_connect_data;
+	struct obd_import       *imp;
+	struct obd_connect_data *ocd;
 	struct config_llog_data *cld;
 
+	LPROCFS_CLIMP_CHECK(obd);
+	imp = obd->u.cli.cl_import;
+	ocd = &imp->imp_connect_data;
+
 	seq_printf(m, "imperative_recovery: %s\n",
 		      OCD_HAS_FLAG(ocd, IMP_RECOV) ? "ENABLED" : "DISABLED");
 	seq_printf(m, "client_state:\n");
@@ -470,6 +474,7 @@ int lprocfs_mgc_rd_ir_state(struct seq_file *m, void *data)
 	}
 	spin_unlock(&config_list_lock);
 
+	LPROCFS_CLIMP_EXIT(obd);
 	return 0;
 }
 #endif
@@ -479,9 +484,11 @@ int lprocfs_mgc_rd_ir_state(struct seq_file *m, void *data)
 #define RQ_NOW     0x2
 #define RQ_LATER   0x4
 #define RQ_STOP    0x8
-static int		    rq_state = 0;
+#define RQ_PRECLEANUP  0x10
+static int rq_state;
 static wait_queue_head_t	    rq_waitq;
 static DECLARE_COMPLETION(rq_exit);
+static DECLARE_COMPLETION(rq_start);
 
 static void do_requeue(struct config_llog_data *cld)
 {
@@ -510,6 +517,8 @@ static void do_requeue(struct config_llog_data *cld)
 
 static int mgc_requeue_thread(void *data)
 {
+	bool first = true;
+
 	CDEBUG(D_MGC, "Starting requeue thread\n");
 
 	/* Keep trying failed locks periodically */
@@ -526,13 +535,19 @@ static int mgc_requeue_thread(void *data)
 		rq_state &= ~(RQ_NOW | RQ_LATER);
 		spin_unlock(&config_list_lock);
 
+		if (first) {
+			first = false;
+			complete(&rq_start);
+		}
+
 		/* Always wait a few seconds to allow the server who
 		   caused the lock revocation to finish its setup, plus some
 		   random so everyone doesn't try to reconnect at once. */
 		to = MGC_TIMEOUT_MIN_SECONDS * HZ;
 		to += rand * HZ / 100; /* rand is centi-seconds */
 		lwi = LWI_TIMEOUT(to, NULL, NULL);
-		l_wait_event(rq_waitq, rq_state & RQ_STOP, &lwi);
+		l_wait_event(rq_waitq, rq_state & (RQ_STOP | RQ_PRECLEANUP),
+			     &lwi);
 
 		/*
 		 * iterate & processing through the list. for each cld, process
@@ -545,6 +560,7 @@ static int mgc_requeue_thread(void *data)
 		cld_prev = NULL;
 
 		spin_lock(&config_list_lock);
+		rq_state &= ~RQ_PRECLEANUP;
 		list_for_each_entry(cld, &config_llog_list,
 					cld_list_chain) {
 			if (!cld->cld_lostlock)
@@ -661,24 +677,26 @@ static atomic_t mgc_count = ATOMIC_INIT(0);
 static int mgc_precleanup(struct obd_device *obd, enum obd_cleanup_stage stage)
 {
 	int rc = 0;
+	int temp;
 
 	switch (stage) {
 	case OBD_CLEANUP_EARLY:
 		break;
 	case OBD_CLEANUP_EXPORTS:
 		if (atomic_dec_and_test(&mgc_count)) {
-			int running;
+			LASSERT(rq_state & RQ_RUNNING);
 			/* stop requeue thread */
-			spin_lock(&config_list_lock);
-			running = rq_state & RQ_RUNNING;
-			if (running)
-				rq_state |= RQ_STOP;
-			spin_unlock(&config_list_lock);
-			if (running) {
-				wake_up(&rq_waitq);
-				wait_for_completion(&rq_exit);
-			}
+			temp = RQ_STOP;
+		} else {
+			/* wakeup requeue thread to clean our cld */
+			temp = RQ_NOW | RQ_PRECLEANUP;
 		}
+		spin_lock(&config_list_lock);
+		rq_state |= temp;
+		spin_unlock(&config_list_lock);
+		wake_up(&rq_waitq);
+		if (temp & RQ_STOP)
+			wait_for_completion(&rq_exit);
 		obd_cleanup_client_import(obd);
 		rc = mgc_llog_fini(NULL, obd);
 		if (rc != 0)
@@ -690,8 +708,6 @@ static int mgc_precleanup(struct obd_device *obd, enum obd_cleanup_stage stage)
 
 static int mgc_cleanup(struct obd_device *obd)
 {
-	int rc;
-
 	/* COMPAT_146 - old config logs may have added profiles we don't
 	   know about */
 	if (obd->obd_type->typ_refcnt <= 1)
@@ -701,8 +717,7 @@ static int mgc_cleanup(struct obd_device *obd)
 	lprocfs_obd_cleanup(obd);
 	ptlrpcd_decref();
 
-	rc = client_obd_cleanup(obd);
-	return rc;
+	return client_obd_cleanup(obd);
 }
 
 static int mgc_setup(struct obd_device *obd, struct lustre_cfg *lcfg)
@@ -740,6 +755,7 @@ static int mgc_setup(struct obd_device *obd, struct lustre_cfg *lcfg)
 		}
 		/* rc is the task_struct pointer of mgc_requeue_thread. */
 		rc = 0;
+		wait_for_completion(&rq_start);
 	}
 
 	return rc;
@@ -951,7 +967,7 @@ static int mgc_target_register(struct obd_export *exp,
 	return rc;
 }
 
-int mgc_set_info_async(const struct lu_env *env, struct obd_export *exp,
+static int mgc_set_info_async(const struct lu_env *env, struct obd_export *exp,
 		       u32 keylen, void *key, u32 vallen,
 		       void *val, struct ptlrpc_request_set *set)
 {
@@ -1727,7 +1743,7 @@ struct obd_ops mgc_obd_ops = {
 	.o_process_config = mgc_process_config,
 };
 
-int __init mgc_init(void)
+static int __init mgc_init(void)
 {
 	return class_register_type(&mgc_obd_ops, NULL, NULL,
 				   LUSTRE_MGC_NAME, NULL);
diff --git a/drivers/staging/lustre/lustre/obdclass/class_obd.c b/drivers/staging/lustre/lustre/obdclass/class_obd.c
index 29456e1..d4b74b6 100644
--- a/drivers/staging/lustre/lustre/obdclass/class_obd.c
+++ b/drivers/staging/lustre/lustre/obdclass/class_obd.c
@@ -437,8 +437,6 @@ int class_handle_ioctl(unsigned int cmd, unsigned long arg)
 	return err;
 } /* class_handle_ioctl */
 
-extern struct miscdevice obd_psdev;
-
 #define OBD_INIT_CHECK
 int obd_init_checks(void)
 {
@@ -508,7 +506,6 @@ int obd_init_checks(void)
 	return ret;
 }
 
-extern spinlock_t obd_types_lock;
 #if defined (CONFIG_PROC_FS)
 extern int class_procfs_init(void);
 extern int class_procfs_clean(void);
diff --git a/drivers/staging/lustre/lustre/obdclass/dt_object.c b/drivers/staging/lustre/lustre/obdclass/dt_object.c
index e7be26e..b1eee0a 100644
--- a/drivers/staging/lustre/lustre/obdclass/dt_object.c
+++ b/drivers/staging/lustre/lustre/obdclass/dt_object.c
@@ -424,11 +424,8 @@ EXPORT_SYMBOL(dt_find_or_create);
 /* dt class init function. */
 int dt_global_init(void)
 {
-	int result;
-
 	LU_CONTEXT_KEY_INIT(&dt_key);
-	result = lu_context_key_register(&dt_key);
-	return result;
+	return lu_context_key_register(&dt_key);
 }
 
 void dt_global_fini(void)
diff --git a/drivers/staging/lustre/lustre/obdclass/genops.c b/drivers/staging/lustre/lustre/obdclass/genops.c
index 8250821..66b5678 100644
--- a/drivers/staging/lustre/lustre/obdclass/genops.c
+++ b/drivers/staging/lustre/lustre/obdclass/genops.c
@@ -43,17 +43,16 @@
 #include "../include/obd_class.h"
 #include "../include/lprocfs_status.h"
 
-extern struct list_head obd_types;
 spinlock_t obd_types_lock;
 
 struct kmem_cache *obd_device_cachep;
 struct kmem_cache *obdo_cachep;
 EXPORT_SYMBOL(obdo_cachep);
-struct kmem_cache *import_cachep;
+static struct kmem_cache *import_cachep;
 
-struct list_head      obd_zombie_imports;
-struct list_head      obd_zombie_exports;
-spinlock_t  obd_zombie_impexp_lock;
+static struct list_head      obd_zombie_imports;
+static struct list_head      obd_zombie_exports;
+static spinlock_t  obd_zombie_impexp_lock;
 static void obd_zombie_impexp_notify(void);
 static void obd_zombie_export_add(struct obd_export *exp);
 static void obd_zombie_import_add(struct obd_import *imp);
@@ -930,7 +929,7 @@ void class_unlink_export(struct obd_export *exp)
 EXPORT_SYMBOL(class_unlink_export);
 
 /* Import management functions */
-void class_import_destroy(struct obd_import *imp)
+static void class_import_destroy(struct obd_import *imp)
 {
 	CDEBUG(D_IOCTL, "destroying import %p for %s\n", imp,
 		imp->imp_obd->obd_name);
@@ -1127,7 +1126,7 @@ int class_connect(struct lustre_handle *conn, struct obd_device *obd,
 EXPORT_SYMBOL(class_connect);
 
 /* if export is involved in recovery then clean up related things */
-void class_export_recovery_cleanup(struct obd_export *exp)
+static void class_export_recovery_cleanup(struct obd_export *exp)
 {
 	struct obd_device *obd = exp->exp_obd;
 
@@ -1221,7 +1220,7 @@ int class_connected_export(struct obd_export *exp)
 	if (exp) {
 		int connected;
 		spin_lock(&exp->exp_lock);
-		connected = (exp->exp_conn_cnt > 0);
+		connected = exp->exp_conn_cnt > 0;
 		spin_unlock(&exp->exp_lock);
 		return connected;
 	}
@@ -1559,7 +1558,7 @@ void obd_exports_barrier(struct obd_device *obd)
 EXPORT_SYMBOL(obd_exports_barrier);
 
 /* Total amount of zombies to be destroyed */
-static int zombies_count = 0;
+static int zombies_count;
 
 /**
  * kill zombie imports and exports
diff --git a/drivers/staging/lustre/lustre/obdclass/linux/linux-module.c b/drivers/staging/lustre/lustre/obdclass/linux/linux-module.c
index b94aeac..06944b8 100644
--- a/drivers/staging/lustre/lustre/obdclass/linux/linux-module.c
+++ b/drivers/staging/lustre/lustre/obdclass/linux/linux-module.c
@@ -217,23 +217,25 @@ struct miscdevice obd_psdev = {
 
 
 #if defined (CONFIG_PROC_FS)
-int obd_proc_version_seq_show(struct seq_file *m, void *v)
+static int obd_proc_version_seq_show(struct seq_file *m, void *v)
 {
-	return seq_printf(m, "lustre: %s\nkernel: %s\nbuild:  %s\n",
-			LUSTRE_VERSION_STRING, "patchless_client",
-			BUILD_VERSION);
+	seq_printf(m, "lustre: %s\nkernel: %s\nbuild:  %s\n",
+		   LUSTRE_VERSION_STRING, "patchless_client", BUILD_VERSION);
+	return 0;
 }
 LPROC_SEQ_FOPS_RO(obd_proc_version);
 
 int obd_proc_pinger_seq_show(struct seq_file *m, void *v)
 {
-	return seq_printf(m, "%s\n", "on");
+	seq_printf(m, "%s\n", "on");
+	return 0;
 }
 LPROC_SEQ_FOPS_RO(obd_proc_pinger);
 
 static int obd_proc_health_seq_show(struct seq_file *m, void *v)
 {
-	int rc = 0, i;
+	bool healthy = true;
+	int i;
 
 	if (libcfs_catastrophe)
 		seq_printf(m, "LBUG\n");
@@ -255,25 +257,27 @@ static int obd_proc_health_seq_show(struct seq_file *m, void *v)
 
 		if (obd_health_check(NULL, obd)) {
 			seq_printf(m, "device %s reported unhealthy\n",
-				      obd->obd_name);
-			rc++;
+				   obd->obd_name);
+			healthy = false;
 		}
 		class_decref(obd, __func__, current);
 		read_lock(&obd_dev_lock);
 	}
 	read_unlock(&obd_dev_lock);
 
-	if (rc == 0)
-		return seq_printf(m, "healthy\n");
+	if (healthy)
+		seq_puts(m, "healthy\n");
+	else
+		seq_puts(m, "NOT HEALTHY\n");
 
-	seq_printf(m, "NOT HEALTHY\n");
 	return 0;
 }
 LPROC_SEQ_FOPS_RO(obd_proc_health);
 
 static int obd_proc_jobid_var_seq_show(struct seq_file *m, void *v)
 {
-	return seq_printf(m, "%s\n", obd_jobid_var);
+	seq_printf(m, "%s\n", obd_jobid_var);
+	return 0;
 }
 
 static ssize_t obd_proc_jobid_var_seq_write(struct file *file,
@@ -299,7 +303,8 @@ LPROC_SEQ_FOPS(obd_proc_jobid_var);
 
 static int obd_proc_jobid_name_seq_show(struct seq_file *m, void *v)
 {
-	return seq_printf(m, "%s\n", obd_jobid_var);
+	seq_printf(m, "%s\n", obd_jobid_var);
+	return 0;
 }
 
 static ssize_t obd_proc_jobid_name_seq_write(struct file *file,
@@ -378,10 +383,11 @@ static int obd_device_list_seq_show(struct seq_file *p, void *v)
 	else
 		status = "--";
 
-	return seq_printf(p, "%3d %s %s %s %s %d\n",
-			  (int)index, status, obd->obd_type->typ_name,
-			  obd->obd_name, obd->obd_uuid.uuid,
-			  atomic_read(&obd->obd_refcount));
+	seq_printf(p, "%3d %s %s %s %s %d\n",
+		   (int)index, status, obd->obd_type->typ_name,
+		   obd->obd_name, obd->obd_uuid.uuid,
+		   atomic_read(&obd->obd_refcount));
+	return 0;
 }
 
 struct seq_operations obd_device_list_sops = {
diff --git a/drivers/staging/lustre/lustre/obdclass/linux/linux-sysctl.c b/drivers/staging/lustre/lustre/obdclass/linux/linux-sysctl.c
index dd46e73..4b62d25 100644
--- a/drivers/staging/lustre/lustre/obdclass/linux/linux-sysctl.c
+++ b/drivers/staging/lustre/lustre/obdclass/linux/linux-sysctl.c
@@ -79,6 +79,7 @@ enum {
 };
 
 
+#ifdef CONFIG_SYSCTL
 static int proc_set_timeout(struct ctl_table *table, int write,
 			void __user *buffer, size_t *lenp, loff_t *ppos)
 {
@@ -205,7 +206,7 @@ static int proc_max_dirty_pages_in_mb(struct ctl_table *table, int write,
 			CERROR("Refusing to set max dirty pages to %u, which is more than 90%% of available RAM; setting to %lu\n",
 			       obd_max_dirty_pages,
 			       ((totalram_pages / 10) * 9));
-			obd_max_dirty_pages = ((totalram_pages / 10) * 9);
+			obd_max_dirty_pages = (totalram_pages / 10) * 9;
 		} else if (obd_max_dirty_pages < 4 << (20 - PAGE_CACHE_SHIFT)) {
 			obd_max_dirty_pages = 4 << (20 - PAGE_CACHE_SHIFT);
 		}
@@ -258,7 +259,6 @@ static int proc_alloc_fail_rate(struct ctl_table *table, int write,
 	return rc;
 }
 
-#ifdef CONFIG_SYSCTL
 static struct ctl_table obd_table[] = {
 	{
 		.procname = "timeout",
diff --git a/drivers/staging/lustre/lustre/obdclass/llog_cat.c b/drivers/staging/lustre/lustre/obdclass/llog_cat.c
index 4b850fc..c8f6ab0 100644
--- a/drivers/staging/lustre/lustre/obdclass/llog_cat.c
+++ b/drivers/staging/lustre/lustre/obdclass/llog_cat.c
@@ -526,8 +526,9 @@ int llog_cat_cancel_records(const struct lu_env *env,
 }
 EXPORT_SYMBOL(llog_cat_cancel_records);
 
-int llog_cat_process_cb(const struct lu_env *env, struct llog_handle *cat_llh,
-			struct llog_rec_hdr *rec, void *data)
+static int llog_cat_process_cb(const struct lu_env *env,
+			       struct llog_handle *cat_llh,
+			       struct llog_rec_hdr *rec, void *data)
 {
 	struct llog_process_data *d = data;
 	struct llog_logid_rec *lir = (struct llog_logid_rec *)rec;
@@ -691,7 +692,7 @@ int llog_cat_reverse_process(const struct lu_env *env,
 }
 EXPORT_SYMBOL(llog_cat_reverse_process);
 
-int llog_cat_set_first_idx(struct llog_handle *cathandle, int index)
+static int llog_cat_set_first_idx(struct llog_handle *cathandle, int index)
 {
 	struct llog_log_hdr *llh = cathandle->lgh_hdr;
 	int i, bitmap_size, idx;
@@ -750,7 +751,7 @@ int llog_cat_cleanup(const struct lu_env *env, struct llog_handle *cathandle,
 	return rc;
 }
 
-int cat_cancel_cb(const struct lu_env *env, struct llog_handle *cathandle,
+static int cat_cancel_cb(const struct lu_env *env, struct llog_handle *cathandle,
 		  struct llog_rec_hdr *rec, void *data)
 {
 	struct llog_logid_rec	*lir = (struct llog_logid_rec *)rec;
@@ -794,7 +795,6 @@ int cat_cancel_cb(const struct lu_env *env, struct llog_handle *cathandle,
 
 	return rc;
 }
-EXPORT_SYMBOL(cat_cancel_cb);
 
 /* helper to initialize catalog llog and process it to cancel */
 int llog_cat_init_and_process(const struct lu_env *env,
diff --git a/drivers/staging/lustre/lustre/obdclass/lprocfs_status.c b/drivers/staging/lustre/lustre/obdclass/lprocfs_status.c
index ddab94d..c171c6c 100644
--- a/drivers/staging/lustre/lustre/obdclass/lprocfs_status.c
+++ b/drivers/staging/lustre/lustre/obdclass/lprocfs_status.c
@@ -223,7 +223,7 @@ EXPORT_SYMBOL(lprocfs_write_frac_helper);
 
 #if defined (CONFIG_PROC_FS)
 
-static int lprocfs_no_percpu_stats = 0;
+static int lprocfs_no_percpu_stats;
 module_param(lprocfs_no_percpu_stats, int, 0644);
 MODULE_PARM_DESC(lprocfs_no_percpu_stats, "Do not alloc percpu data for lprocfs stats");
 
@@ -377,7 +377,8 @@ EXPORT_SYMBOL(lprocfs_register);
 /* Generic callbacks */
 int lprocfs_rd_uint(struct seq_file *m, void *data)
 {
-	return seq_printf(m, "%u\n", *(unsigned int *)data);
+	seq_printf(m, "%u\n", *(unsigned int *)data);
+	return 0;
 }
 EXPORT_SYMBOL(lprocfs_rd_uint);
 
@@ -403,7 +404,8 @@ EXPORT_SYMBOL(lprocfs_wr_uint);
 
 int lprocfs_rd_u64(struct seq_file *m, void *data)
 {
-	return seq_printf(m, "%llu\n", *(__u64 *)data);
+	seq_printf(m, "%llu\n", *(__u64 *)data);
+	return 0;
 }
 EXPORT_SYMBOL(lprocfs_rd_u64);
 
@@ -411,7 +413,8 @@ int lprocfs_rd_atomic(struct seq_file *m, void *data)
 {
 	atomic_t *atom = data;
 	LASSERT(atom != NULL);
-	return seq_printf(m, "%d\n", atomic_read(atom));
+	seq_printf(m, "%d\n", atomic_read(atom));
+	return 0;
 }
 EXPORT_SYMBOL(lprocfs_rd_atomic);
 
@@ -439,7 +442,8 @@ int lprocfs_rd_uuid(struct seq_file *m, void *data)
 	struct obd_device *obd = data;
 
 	LASSERT(obd != NULL);
-	return seq_printf(m, "%s\n", obd->obd_uuid.uuid);
+	seq_printf(m, "%s\n", obd->obd_uuid.uuid);
+	return 0;
 }
 EXPORT_SYMBOL(lprocfs_rd_uuid);
 
@@ -448,7 +452,8 @@ int lprocfs_rd_name(struct seq_file *m, void *data)
 	struct obd_device *dev = data;
 
 	LASSERT(dev != NULL);
-	return seq_printf(m, "%s\n", dev->obd_name);
+	seq_printf(m, "%s\n", dev->obd_name);
+	return 0;
 }
 EXPORT_SYMBOL(lprocfs_rd_name);
 
@@ -460,7 +465,8 @@ int lprocfs_rd_blksize(struct seq_file *m, void *data)
 			    cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
 			    OBD_STATFS_NODELAY);
 	if (!rc)
-		rc = seq_printf(m, "%u\n", osfs.os_bsize);
+		seq_printf(m, "%u\n", osfs.os_bsize);
+
 	return rc;
 }
 EXPORT_SYMBOL(lprocfs_rd_blksize);
@@ -479,8 +485,9 @@ int lprocfs_rd_kbytestotal(struct seq_file *m, void *data)
 		while (blk_size >>= 1)
 			result <<= 1;
 
-		rc = seq_printf(m, "%llu\n", result);
+		seq_printf(m, "%llu\n", result);
 	}
+
 	return rc;
 }
 EXPORT_SYMBOL(lprocfs_rd_kbytestotal);
@@ -499,8 +506,9 @@ int lprocfs_rd_kbytesfree(struct seq_file *m, void *data)
 		while (blk_size >>= 1)
 			result <<= 1;
 
-		rc = seq_printf(m, "%llu\n", result);
+		seq_printf(m, "%llu\n", result);
 	}
+
 	return rc;
 }
 EXPORT_SYMBOL(lprocfs_rd_kbytesfree);
@@ -519,8 +527,9 @@ int lprocfs_rd_kbytesavail(struct seq_file *m, void *data)
 		while (blk_size >>= 1)
 			result <<= 1;
 
-		rc = seq_printf(m, "%llu\n", result);
+		seq_printf(m, "%llu\n", result);
 	}
+
 	return rc;
 }
 EXPORT_SYMBOL(lprocfs_rd_kbytesavail);
@@ -533,7 +542,7 @@ int lprocfs_rd_filestotal(struct seq_file *m, void *data)
 			    cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
 			    OBD_STATFS_NODELAY);
 	if (!rc)
-		rc = seq_printf(m, "%llu\n", osfs.os_files);
+		seq_printf(m, "%llu\n", osfs.os_files);
 
 	return rc;
 }
@@ -547,7 +556,8 @@ int lprocfs_rd_filesfree(struct seq_file *m, void *data)
 			    cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
 			    OBD_STATFS_NODELAY);
 	if (!rc)
-		rc = seq_printf(m, "%llu\n", osfs.os_ffree);
+		seq_printf(m, "%llu\n", osfs.os_ffree);
+
 	return rc;
 }
 EXPORT_SYMBOL(lprocfs_rd_filesfree);
@@ -557,17 +567,18 @@ int lprocfs_rd_server_uuid(struct seq_file *m, void *data)
 	struct obd_device *obd = data;
 	struct obd_import *imp;
 	char *imp_state_name = NULL;
-	int rc = 0;
 
 	LASSERT(obd != NULL);
 	LPROCFS_CLIMP_CHECK(obd);
 	imp = obd->u.cli.cl_import;
 	imp_state_name = ptlrpc_import_state_name(imp->imp_state);
-	rc = seq_printf(m, "%s\t%s%s\n", obd2cli_tgt(obd), imp_state_name,
-			imp->imp_deactive ? "\tDEACTIVATED" : "");
+	seq_printf(m, "%s\t%s%s\n",
+		   obd2cli_tgt(obd), imp_state_name,
+		   imp->imp_deactive ? "\tDEACTIVATED" : "");
 
 	LPROCFS_CLIMP_EXIT(obd);
-	return rc;
+
+	return 0;
 }
 EXPORT_SYMBOL(lprocfs_rd_server_uuid);
 
@@ -575,19 +586,19 @@ int lprocfs_rd_conn_uuid(struct seq_file *m, void *data)
 {
 	struct obd_device *obd = data;
 	struct ptlrpc_connection *conn;
-	int rc = 0;
 
 	LASSERT(obd != NULL);
 
 	LPROCFS_CLIMP_CHECK(obd);
 	conn = obd->u.cli.cl_import->imp_connection;
 	if (conn && obd->u.cli.cl_import)
-		rc = seq_printf(m, "%s\n", conn->c_remote_uuid.uuid);
+		seq_printf(m, "%s\n", conn->c_remote_uuid.uuid);
 	else
-		rc = seq_printf(m, "%s\n", "<none>");
+		seq_puts(m, "<none>\n");
 
 	LPROCFS_CLIMP_EXIT(obd);
-	return rc;
+
+	return 0;
 }
 EXPORT_SYMBOL(lprocfs_rd_conn_uuid);
 
@@ -924,7 +935,8 @@ int lprocfs_rd_num_exports(struct seq_file *m, void *data)
 	struct obd_device *obd = data;
 
 	LASSERT(obd != NULL);
-	return seq_printf(m, "%u\n", obd->obd_num_exports);
+	seq_printf(m, "%u\n", obd->obd_num_exports);
+	return 0;
 }
 EXPORT_SYMBOL(lprocfs_rd_num_exports);
 
@@ -933,7 +945,8 @@ int lprocfs_rd_numrefs(struct seq_file *m, void *data)
 	struct obd_type *class = (struct obd_type *) data;
 
 	LASSERT(class != NULL);
-	return seq_printf(m, "%d\n", class->typ_refcnt);
+	seq_printf(m, "%d\n", class->typ_refcnt);
+	return 0;
 }
 EXPORT_SYMBOL(lprocfs_rd_numrefs);
 
@@ -1200,41 +1213,33 @@ static int lprocfs_stats_seq_show(struct seq_file *p, void *v)
 	struct lprocfs_counter_header   *hdr;
 	struct lprocfs_counter           ctr;
 	int                              idx    = *(loff_t *)v;
-	int                              rc     = 0;
 
 	if (idx == 0) {
 		struct timeval now;
 		do_gettimeofday(&now);
-		rc = seq_printf(p, "%-25s %lu.%lu secs.usecs\n",
-				"snapshot_time", now.tv_sec, (unsigned long)now.tv_usec);
-		if (rc < 0)
-			return rc;
+		seq_printf(p, "%-25s %lu.%lu secs.usecs\n",
+			   "snapshot_time",
+			   now.tv_sec, (unsigned long)now.tv_usec);
 	}
+
 	hdr = &stats->ls_cnt_header[idx];
 	lprocfs_stats_collect(stats, idx, &ctr);
 
-	if (ctr.lc_count == 0)
-		goto out;
-
-	rc = seq_printf(p, "%-25s %lld samples [%s]", hdr->lc_name,
-			ctr.lc_count, hdr->lc_units);
+	if (ctr.lc_count != 0) {
+		seq_printf(p, "%-25s %lld samples [%s]",
+			   hdr->lc_name, ctr.lc_count, hdr->lc_units);
 
-	if (rc < 0)
-		goto out;
-
-	if ((hdr->lc_config & LPROCFS_CNTR_AVGMINMAX) && (ctr.lc_count > 0)) {
-		rc = seq_printf(p, " %lld %lld %lld",
-				ctr.lc_min, ctr.lc_max, ctr.lc_sum);
-		if (rc < 0)
-			goto out;
-		if (hdr->lc_config & LPROCFS_CNTR_STDDEV)
-			rc = seq_printf(p, " %lld", ctr.lc_sumsquare);
-		if (rc < 0)
-			goto out;
+		if ((hdr->lc_config & LPROCFS_CNTR_AVGMINMAX) &&
+		    (ctr.lc_count > 0)) {
+			seq_printf(p, " %lld %lld %lld",
+				   ctr.lc_min, ctr.lc_max, ctr.lc_sum);
+			if (hdr->lc_config & LPROCFS_CNTR_STDDEV)
+				seq_printf(p, " %lld", ctr.lc_sumsquare);
+		}
+		seq_putc(p, '\n');
 	}
-	rc = seq_printf(p, "\n");
-out:
-	return (rc < 0) ? rc : 0;
+
+	return 0;
 }
 
 static const struct seq_operations lprocfs_stats_seq_sops = {
@@ -1606,8 +1611,9 @@ LPROC_SEQ_FOPS_RO(lproc_exp_hash);
 
 int lprocfs_nid_stats_clear_read(struct seq_file *m, void *data)
 {
-	return seq_printf(m, "%s\n",
-			  "Write into this file to clear all nid stats and stale nid entries");
+	seq_printf(m, "%s\n",
+		   "Write into this file to clear all nid stats and stale nid entries");
+	return 0;
 }
 EXPORT_SYMBOL(lprocfs_nid_stats_clear_read);
 
@@ -2041,12 +2047,12 @@ int lprocfs_obd_rd_max_pages_per_rpc(struct seq_file *m, void *data)
 {
 	struct obd_device *dev = data;
 	struct client_obd *cli = &dev->u.cli;
-	int rc;
 
 	client_obd_list_lock(&cli->cl_loi_list_lock);
-	rc = seq_printf(m, "%d\n", cli->cl_max_pages_per_rpc);
+	seq_printf(m, "%d\n", cli->cl_max_pages_per_rpc);
 	client_obd_list_unlock(&cli->cl_loi_list_lock);
-	return rc;
+
+	return 0;
 }
 EXPORT_SYMBOL(lprocfs_obd_rd_max_pages_per_rpc);
 
diff --git a/drivers/staging/lustre/lustre/obdclass/lu_object.c b/drivers/staging/lustre/lustre/obdclass/lu_object.c
index 83bf168c..20c0779 100644
--- a/drivers/staging/lustre/lustre/obdclass/lu_object.c
+++ b/drivers/staging/lustre/lustre/obdclass/lu_object.c
@@ -1308,7 +1308,7 @@ static DEFINE_SPINLOCK(lu_keys_guard);
  * lu_context_refill(). No locking is provided, as initialization and shutdown
  * are supposed to be externally serialized.
  */
-static unsigned key_set_version = 0;
+static unsigned key_set_version;
 
 /**
  * Register new key.
@@ -1769,8 +1769,6 @@ EXPORT_SYMBOL(lu_env_refill);
 int lu_env_refill_by_tags(struct lu_env *env, __u32 ctags,
 			  __u32 stags)
 {
-	int    result;
-
 	if ((env->le_ctx.lc_tags & ctags) != ctags) {
 		env->le_ctx.lc_version = 0;
 		env->le_ctx.lc_tags |= ctags;
@@ -1781,9 +1779,7 @@ int lu_env_refill_by_tags(struct lu_env *env, __u32 ctags,
 		env->le_ses->lc_tags |= stags;
 	}
 
-	result = lu_env_refill(env);
-
-	return result;
+	return lu_env_refill(env);
 }
 EXPORT_SYMBOL(lu_env_refill_by_tags);
 
@@ -2014,18 +2010,19 @@ int lu_site_stats_print(const struct lu_site *s, struct seq_file *m)
 	memset(&stats, 0, sizeof(stats));
 	lu_site_stats_get(s->ls_obj_hash, &stats, 1);
 
-	return seq_printf(m, "%d/%d %d/%d %d %d %d %d %d %d %d\n",
-			stats.lss_busy,
-			stats.lss_total,
-			stats.lss_populated,
-			CFS_HASH_NHLIST(s->ls_obj_hash),
-			stats.lss_max_search,
-			ls_stats_read(s->ls_stats, LU_SS_CREATED),
-			ls_stats_read(s->ls_stats, LU_SS_CACHE_HIT),
-			ls_stats_read(s->ls_stats, LU_SS_CACHE_MISS),
-			ls_stats_read(s->ls_stats, LU_SS_CACHE_RACE),
-			ls_stats_read(s->ls_stats, LU_SS_CACHE_DEATH_RACE),
-			ls_stats_read(s->ls_stats, LU_SS_LRU_PURGED));
+	seq_printf(m, "%d/%d %d/%d %d %d %d %d %d %d %d\n",
+		   stats.lss_busy,
+		   stats.lss_total,
+		   stats.lss_populated,
+		   CFS_HASH_NHLIST(s->ls_obj_hash),
+		   stats.lss_max_search,
+		   ls_stats_read(s->ls_stats, LU_SS_CREATED),
+		   ls_stats_read(s->ls_stats, LU_SS_CACHE_HIT),
+		   ls_stats_read(s->ls_stats, LU_SS_CACHE_MISS),
+		   ls_stats_read(s->ls_stats, LU_SS_CACHE_RACE),
+		   ls_stats_read(s->ls_stats, LU_SS_CACHE_DEATH_RACE),
+		   ls_stats_read(s->ls_stats, LU_SS_LRU_PURGED));
+	return 0;
 }
 EXPORT_SYMBOL(lu_site_stats_print);
 
diff --git a/drivers/staging/lustre/lustre/obdclass/obd_mount.c b/drivers/staging/lustre/lustre/obdclass/obd_mount.c
index 3c0c910..3437b2e 100644
--- a/drivers/staging/lustre/lustre/obdclass/obd_mount.c
+++ b/drivers/staging/lustre/lustre/obdclass/obd_mount.c
@@ -645,10 +645,10 @@ int lustre_put_lsi(struct super_block *sb)
 }
 
 /*** SERVER NAME ***
- * <FSNAME><SEPERATOR><TYPE><INDEX>
+ * <FSNAME><SEPARATOR><TYPE><INDEX>
  * FSNAME is between 1 and 8 characters (inclusive).
  *	Excluded characters are '/' and ':'
- * SEPERATOR is either ':' or '-'
+ * SEPARATOR is either ':' or '-'
  * TYPE: "OST", "MDT", etc.
  * INDEX: Hex representation of the index
  */
@@ -1286,7 +1286,7 @@ struct dentry *lustre_mount(struct file_system_type *fs_type, int flags,
 	return mount_nodev(fs_type, flags, &lmd2, lustre_fill_super);
 }
 
-void lustre_kill_super(struct super_block *sb)
+static void lustre_kill_super(struct super_block *sb)
 {
 	struct lustre_sb_info *lsi = s2lsi(sb);
 
diff --git a/drivers/staging/lustre/lustre/obdecho/echo_client.c b/drivers/staging/lustre/lustre/obdecho/echo_client.c
index 5f6d944..d542e06 100644
--- a/drivers/staging/lustre/lustre/obdecho/echo_client.c
+++ b/drivers/staging/lustre/lustre/obdecho/echo_client.c
@@ -146,6 +146,7 @@ static struct lu_context_key echo_thread_key;
 static inline struct echo_thread_info *echo_env_info(const struct lu_env *env)
 {
 	struct echo_thread_info *info;
+
 	info = lu_context_key_get(&env->le_ctx, &echo_thread_key);
 	LASSERT(info != NULL);
 	return info;
@@ -195,22 +196,22 @@ static struct lu_kmem_descr echo_caches[] = {
 	{
 		.ckd_cache = &echo_lock_kmem,
 		.ckd_name  = "echo_lock_kmem",
-		.ckd_size  = sizeof (struct echo_lock)
+		.ckd_size  = sizeof(struct echo_lock)
 	},
 	{
 		.ckd_cache = &echo_object_kmem,
 		.ckd_name  = "echo_object_kmem",
-		.ckd_size  = sizeof (struct echo_object)
+		.ckd_size  = sizeof(struct echo_object)
 	},
 	{
 		.ckd_cache = &echo_thread_kmem,
 		.ckd_name  = "echo_thread_kmem",
-		.ckd_size  = sizeof (struct echo_thread_info)
+		.ckd_size  = sizeof(struct echo_thread_info)
 	},
 	{
 		.ckd_cache = &echo_session_kmem,
 		.ckd_name  = "echo_session_kmem",
-		.ckd_size  = sizeof (struct echo_session_info)
+		.ckd_size  = sizeof(struct echo_session_info)
 	},
 	{
 		.ckd_cache = NULL
@@ -637,6 +638,7 @@ static void echo_thread_key_fini(const struct lu_context *ctx,
 			 struct lu_context_key *key, void *data)
 {
 	struct echo_thread_info *info = data;
+
 	OBD_SLAB_FREE_PTR(info, echo_thread_kmem);
 }
 
@@ -667,6 +669,7 @@ static void echo_session_key_fini(const struct lu_context *ctx,
 				 struct lu_context_key *key, void *data)
 {
 	struct echo_session_info *session = data;
+
 	OBD_SLAB_FREE_PTR(session, echo_session_kmem);
 }
 
@@ -783,6 +786,7 @@ out:
 	switch (cleanup) {
 	case 4: {
 		int rc2;
+
 		rc2 = echo_client_cleanup(obd);
 		if (rc2)
 			CERROR("Cleanup obd device %s error(%d)\n",
@@ -958,11 +962,13 @@ static struct echo_object *cl_echo_object_find(struct echo_device *d,
 	if (d->ed_next) {
 		if (!d->ed_next_islov) {
 			struct lov_oinfo *oinfo = lsm->lsm_oinfo[0];
+
 			LASSERT(oinfo != NULL);
 			oinfo->loi_oi = lsm->lsm_oi;
 			conf->eoc_cl.u.coc_oinfo = oinfo;
 		} else {
 			struct lustre_md *md;
+
 			md = &info->eti_md;
 			memset(md, 0, sizeof(*md));
 			md->lsm = lsm;
@@ -1011,6 +1017,7 @@ static int cl_echo_object_put(struct echo_object *eco)
 	/* an external function to kill an object? */
 	if (eco->eo_deleted) {
 		struct lu_object_header *loh = obj->co_lu.lo_header;
+
 		LASSERT(&eco->eo_hdr == luh2coh(loh));
 		set_bit(LU_OBJECT_HEARD_BANSHEE, &loh->loh_flags);
 	}
@@ -1022,7 +1029,7 @@ static int cl_echo_object_put(struct echo_object *eco)
 
 static int cl_echo_enqueue0(struct lu_env *env, struct echo_object *eco,
 			    u64 start, u64 end, int mode,
-			    __u64 *cookie , __u32 enqflags)
+			    __u64 *cookie, __u32 enqflags)
 {
 	struct cl_io *io;
 	struct cl_lock *lck;
@@ -1106,8 +1113,8 @@ static int cl_echo_cancel0(struct lu_env *env, struct echo_device *ed,
 
 	LASSERT(ec != NULL);
 	spin_lock(&ec->ec_lock);
-	list_for_each (el, &ec->ec_locks) {
-		ecl = list_entry (el, struct echo_lock, el_chain);
+	list_for_each(el, &ec->ec_locks) {
+		ecl = list_entry(el, struct echo_lock, el_chain);
 		CDEBUG(D_INFO, "ecl: %p, cookie: %#llx\n", ecl, ecl->el_cookie);
 		found = (ecl->el_cookie == cookie);
 		if (found) {
@@ -1152,6 +1159,7 @@ static int cl_echo_async_brw(const struct lu_env *env, struct cl_io *io,
 
 	cl_page_list_for_each_safe(clp, temp, &queue->c2_qin) {
 		int rc;
+
 		rc = cl_page_cache_add(env, io, clp, CRT_WRITE);
 		if (rc == 0)
 			continue;
@@ -1257,20 +1265,20 @@ out:
 static u64 last_object_id;
 
 static int
-echo_copyout_lsm (struct lov_stripe_md *lsm, void *_ulsm, int ulsm_nob)
+echo_copyout_lsm(struct lov_stripe_md *lsm, void *_ulsm, int ulsm_nob)
 {
 	struct lov_stripe_md *ulsm = _ulsm;
 	int nob, i;
 
-	nob = offsetof (struct lov_stripe_md, lsm_oinfo[lsm->lsm_stripe_count]);
+	nob = offsetof(struct lov_stripe_md, lsm_oinfo[lsm->lsm_stripe_count]);
 	if (nob > ulsm_nob)
 		return -EINVAL;
 
-	if (copy_to_user (ulsm, lsm, sizeof(*ulsm)))
+	if (copy_to_user(ulsm, lsm, sizeof(*ulsm)))
 		return -EFAULT;
 
 	for (i = 0; i < lsm->lsm_stripe_count; i++) {
-		if (copy_to_user (ulsm->lsm_oinfo[i], lsm->lsm_oinfo[i],
+		if (copy_to_user(ulsm->lsm_oinfo[i], lsm->lsm_oinfo[i],
 				      sizeof(lsm->lsm_oinfo[0])))
 			return -EFAULT;
 	}
@@ -1278,16 +1286,16 @@ echo_copyout_lsm (struct lov_stripe_md *lsm, void *_ulsm, int ulsm_nob)
 }
 
 static int
-echo_copyin_lsm (struct echo_device *ed, struct lov_stripe_md *lsm,
+echo_copyin_lsm(struct echo_device *ed, struct lov_stripe_md *lsm,
 		 void *ulsm, int ulsm_nob)
 {
 	struct echo_client_obd *ec = ed->ed_ec;
 	int		     i;
 
-	if (ulsm_nob < sizeof (*lsm))
+	if (ulsm_nob < sizeof(*lsm))
 		return -EINVAL;
 
-	if (copy_from_user (lsm, ulsm, sizeof (*lsm)))
+	if (copy_from_user(lsm, ulsm, sizeof(*lsm)))
 		return -EFAULT;
 
 	if (lsm->lsm_stripe_count > ec->ec_nstripes ||
@@ -1320,7 +1328,7 @@ static int echo_create_object(const struct lu_env *env, struct echo_device *ed,
 	if ((oa->o_valid & OBD_MD_FLID) == 0 && /* no obj id */
 	    (on_target ||		       /* set_stripe */
 	     ec->ec_nstripes != 0)) {	   /* LOV */
-		CERROR ("No valid oid\n");
+		CERROR("No valid oid\n");
 		return -EINVAL;
 	}
 
@@ -1333,7 +1341,7 @@ static int echo_create_object(const struct lu_env *env, struct echo_device *ed,
 	if (ulsm != NULL) {
 		int i, idx;
 
-		rc = echo_copyin_lsm (ed, lsm, ulsm, ulsm_nob);
+		rc = echo_copyin_lsm(ed, lsm, ulsm, ulsm_nob);
 		if (rc != 0)
 			goto failed;
 
@@ -1409,7 +1417,7 @@ static int echo_get_object(struct echo_object **ecop, struct echo_device *ed,
 
 	if ((oa->o_valid & OBD_MD_FLID) == 0 || ostid_id(&oa->o_oi) == 0) {
 		/* disallow use of object id 0 */
-		CERROR ("No valid oid\n");
+		CERROR("No valid oid\n");
 		return -EINVAL;
 	}
 
@@ -1459,7 +1467,7 @@ echo_get_stripe_off_id(struct lov_stripe_md *lsm, u64 *offp, u64 *idp)
 	width = stripe_size * stripe_count;
 
 	/* woffset = offset within a width; offset = whole number of widths */
-	woffset = do_div (offset, width);
+	woffset = do_div(offset, width);
 
 	stripe_index = woffset / stripe_size;
 
@@ -1517,13 +1525,13 @@ static int echo_client_page_debug_check(struct lov_stripe_md *lsm,
 	for (rc = delta = 0; delta < PAGE_CACHE_SIZE; delta += OBD_ECHO_BLOCK_SIZE) {
 		stripe_off = offset + delta;
 		stripe_id = id;
-		echo_get_stripe_off_id (lsm, &stripe_off, &stripe_id);
+		echo_get_stripe_off_id(lsm, &stripe_off, &stripe_id);
 
 		rc2 = block_debug_check("test_brw",
 					addr + delta, OBD_ECHO_BLOCK_SIZE,
 					stripe_off, stripe_id);
 		if (rc2 != 0) {
-			CERROR ("Error in echo object %#llx\n", id);
+			CERROR("Error in echo object %#llx\n", id);
 			rc = rc2;
 		}
 	}
@@ -1583,7 +1591,7 @@ static int echo_client_kbrw(struct echo_device *ed, int rw, struct obdo *oa,
 	     i < npages;
 	     i++, pgp++, off += PAGE_CACHE_SIZE) {
 
-		LASSERT (pgp->pg == NULL);      /* for cleanup */
+		LASSERT(pgp->pg == NULL);      /* for cleanup */
 
 		rc = -ENOMEM;
 		OBD_PAGE_ALLOC(pgp->pg, gfp_mask);
@@ -1615,6 +1623,7 @@ static int echo_client_kbrw(struct echo_device *ed, int rw, struct obdo *oa,
 
 		if (verify) {
 			int vrc;
+
 			vrc = echo_client_page_debug_check(lsm, pgp->pg,
 							   ostid_id(&oa->o_oi),
 							   pgp->off, pgp->count);
@@ -1812,7 +1821,7 @@ echo_client_enqueue(struct obd_export *exp, struct obdo *oa,
 	    (nob & (~CFS_PAGE_MASK)) != 0)
 		return -EINVAL;
 
-	rc = echo_get_object (&eco, ed, oa);
+	rc = echo_get_object(&eco, ed, oa);
 	if (rc != 0)
 		return rc;
 
@@ -1911,6 +1920,7 @@ echo_client_iocontrol(unsigned int cmd, struct obd_export *exp, int len,
 		rc = echo_get_object(&eco, ed, oa);
 		if (rc == 0) {
 			struct obd_info oinfo = { { { 0 } } };
+
 			oinfo.oi_md = eco->eo_lsm;
 			oinfo.oi_oa = oa;
 			rc = obd_getattr(env, ec->ec_exp, &oinfo);
@@ -1927,6 +1937,7 @@ echo_client_iocontrol(unsigned int cmd, struct obd_export *exp, int len,
 		rc = echo_get_object(&eco, ed, oa);
 		if (rc == 0) {
 			struct obd_info oinfo = { { { 0 } } };
+
 			oinfo.oi_oa = oa;
 			oinfo.oi_md = eco->eo_lsm;
 
@@ -1992,7 +2003,7 @@ echo_client_iocontrol(unsigned int cmd, struct obd_export *exp, int len,
 		goto out;
 
 	default:
-		CERROR ("echo_ioctl(): unrecognised ioctl %#x\n", cmd);
+		CERROR("echo_ioctl(): unrecognised ioctl %#x\n", cmd);
 		rc = -ENOTTY;
 		goto out;
 	}
@@ -2034,8 +2045,8 @@ static int echo_client_setup(const struct lu_env *env,
 	}
 
 	spin_lock_init(&ec->ec_lock);
-	INIT_LIST_HEAD (&ec->ec_objects);
-	INIT_LIST_HEAD (&ec->ec_locks);
+	INIT_LIST_HEAD(&ec->ec_objects);
+	INIT_LIST_HEAD(&ec->ec_locks);
 	ec->ec_unique = 0;
 	ec->ec_nstripes = 0;
 
@@ -2158,7 +2169,6 @@ void echo_client_exit(void)
 static int __init obdecho_init(void)
 {
 	struct lprocfs_static_vars lvars;
-	int rc;
 
 	LCONSOLE_INFO("Echo OBD driver; http://www.lustre.org/\n");
 
@@ -2167,9 +2177,7 @@ static int __init obdecho_init(void)
 	lprocfs_echo_init_vars(&lvars);
 
 
-	rc = echo_client_init();
-
-	return rc;
+	return echo_client_init();
 }
 
 static void /*__exit*/ obdecho_exit(void)
diff --git a/drivers/staging/lustre/lustre/obdecho/lproc_echo.c b/drivers/staging/lustre/lustre/obdecho/lproc_echo.c
index 1d3bf6c..0beb97d 100644
--- a/drivers/staging/lustre/lustre/obdecho/lproc_echo.c
+++ b/drivers/staging/lustre/lustre/obdecho/lproc_echo.c
@@ -36,7 +36,7 @@
 #include "../include/lprocfs_status.h"
 #include "../include/obd_class.h"
 
-#if defined (CONFIG_PROC_FS)
+#if defined(CONFIG_PROC_FS)
 LPROC_SEQ_FOPS_RO_TYPE(echo, uuid);
 static struct lprocfs_vars lprocfs_echo_obd_vars[] = {
 	{ "uuid",	 &echo_uuid_fops,	NULL, 0 },
diff --git a/drivers/staging/lustre/lustre/osc/lproc_osc.c b/drivers/staging/lustre/lustre/osc/lproc_osc.c
index 1795d3a..15a6620 100644
--- a/drivers/staging/lustre/lustre/osc/lproc_osc.c
+++ b/drivers/staging/lustre/lustre/osc/lproc_osc.c
@@ -35,7 +35,7 @@
  */
 #define DEBUG_SUBSYSTEM S_CLASS
 
-#include <asm/statfs.h>
+#include <linux/statfs.h>
 #include "../include/obd_cksum.h"
 #include "../include/obd_class.h"
 #include "../include/lprocfs_status.h"
@@ -45,12 +45,12 @@
 static int osc_active_seq_show(struct seq_file *m, void *v)
 {
 	struct obd_device *dev = m->private;
-	int rc;
 
 	LPROCFS_CLIMP_CHECK(dev);
-	rc = seq_printf(m, "%d\n", !dev->u.cli.cl_import->imp_deactive);
+	seq_printf(m, "%d\n", !dev->u.cli.cl_import->imp_deactive);
 	LPROCFS_CLIMP_EXIT(dev);
-	return rc;
+
+	return 0;
 }
 
 static ssize_t osc_active_seq_write(struct file *file,
@@ -80,12 +80,12 @@ static int osc_max_rpcs_in_flight_seq_show(struct seq_file *m, void *v)
 {
 	struct obd_device *dev = m->private;
 	struct client_obd *cli = &dev->u.cli;
-	int rc;
 
 	client_obd_list_lock(&cli->cl_loi_list_lock);
-	rc = seq_printf(m, "%u\n", cli->cl_max_rpcs_in_flight);
+	seq_printf(m, "%u\n", cli->cl_max_rpcs_in_flight);
 	client_obd_list_unlock(&cli->cl_loi_list_lock);
-	return rc;
+
+	return 0;
 }
 
 static ssize_t osc_max_rpcs_in_flight_seq_write(struct file *file,
@@ -164,16 +164,15 @@ static int osc_cached_mb_seq_show(struct seq_file *m, void *v)
 	struct obd_device *dev = m->private;
 	struct client_obd *cli = &dev->u.cli;
 	int shift = 20 - PAGE_CACHE_SHIFT;
-	int rc;
 
-	rc = seq_printf(m,
-		      "used_mb: %d\n"
-		      "busy_cnt: %d\n",
-		      (atomic_read(&cli->cl_lru_in_list) +
-			atomic_read(&cli->cl_lru_busy)) >> shift,
-		      atomic_read(&cli->cl_lru_busy));
+	seq_printf(m,
+		   "used_mb: %d\n"
+		   "busy_cnt: %d\n",
+		   (atomic_read(&cli->cl_lru_in_list) +
+		    atomic_read(&cli->cl_lru_busy)) >> shift,
+		   atomic_read(&cli->cl_lru_busy));
 
-	return rc;
+	return 0;
 }
 
 /* shrink the number of caching pages to a specific number */
@@ -215,12 +214,12 @@ static int osc_cur_dirty_bytes_seq_show(struct seq_file *m, void *v)
 {
 	struct obd_device *dev = m->private;
 	struct client_obd *cli = &dev->u.cli;
-	int rc;
 
 	client_obd_list_lock(&cli->cl_loi_list_lock);
-	rc = seq_printf(m, "%lu\n", cli->cl_dirty);
+	seq_printf(m, "%lu\n", cli->cl_dirty);
 	client_obd_list_unlock(&cli->cl_loi_list_lock);
-	return rc;
+
+	return 0;
 }
 LPROC_SEQ_FOPS_RO(osc_cur_dirty_bytes);
 
@@ -228,12 +227,12 @@ static int osc_cur_grant_bytes_seq_show(struct seq_file *m, void *v)
 {
 	struct obd_device *dev = m->private;
 	struct client_obd *cli = &dev->u.cli;
-	int rc;
 
 	client_obd_list_lock(&cli->cl_loi_list_lock);
-	rc = seq_printf(m, "%lu\n", cli->cl_avail_grant);
+	seq_printf(m, "%lu\n", cli->cl_avail_grant);
 	client_obd_list_unlock(&cli->cl_loi_list_lock);
-	return rc;
+
+	return 0;
 }
 
 static ssize_t osc_cur_grant_bytes_seq_write(struct file *file,
@@ -274,12 +273,12 @@ static int osc_cur_lost_grant_bytes_seq_show(struct seq_file *m, void *v)
 {
 	struct obd_device *dev = m->private;
 	struct client_obd *cli = &dev->u.cli;
-	int rc;
 
 	client_obd_list_lock(&cli->cl_loi_list_lock);
-	rc = seq_printf(m, "%lu\n", cli->cl_lost_grant);
+	seq_printf(m, "%lu\n", cli->cl_lost_grant);
 	client_obd_list_unlock(&cli->cl_loi_list_lock);
-	return rc;
+
+	return 0;
 }
 LPROC_SEQ_FOPS_RO(osc_cur_lost_grant_bytes);
 
@@ -289,8 +288,8 @@ static int osc_grant_shrink_interval_seq_show(struct seq_file *m, void *v)
 
 	if (obd == NULL)
 		return 0;
-	return seq_printf(m, "%d\n",
-			obd->u.cli.cl_grant_shrink_interval);
+	seq_printf(m, "%d\n", obd->u.cli.cl_grant_shrink_interval);
+	return 0;
 }
 
 static ssize_t osc_grant_shrink_interval_seq_write(struct file *file,
@@ -323,8 +322,8 @@ static int osc_checksum_seq_show(struct seq_file *m, void *v)
 	if (obd == NULL)
 		return 0;
 
-	return seq_printf(m, "%d\n",
-			obd->u.cli.cl_checksum ? 1 : 0);
+	seq_printf(m, "%d\n", obd->u.cli.cl_checksum ? 1 : 0);
+	return 0;
 }
 
 static ssize_t osc_checksum_seq_write(struct file *file,
@@ -405,7 +404,8 @@ static int osc_resend_count_seq_show(struct seq_file *m, void *v)
 {
 	struct obd_device *obd = m->private;
 
-	return seq_printf(m, "%u\n", atomic_read(&obd->u.cli.cl_resends));
+	seq_printf(m, "%u\n", atomic_read(&obd->u.cli.cl_resends));
+	return 0;
 }
 
 static ssize_t osc_resend_count_seq_write(struct file *file,
@@ -433,7 +433,8 @@ static int osc_contention_seconds_seq_show(struct seq_file *m, void *v)
 	struct obd_device *obd = m->private;
 	struct osc_device *od  = obd2osc_dev(obd);
 
-	return seq_printf(m, "%u\n", od->od_contention_time);
+	seq_printf(m, "%u\n", od->od_contention_time);
+	return 0;
 }
 
 static ssize_t osc_contention_seconds_seq_write(struct file *file,
@@ -453,7 +454,8 @@ static int osc_lockless_truncate_seq_show(struct seq_file *m, void *v)
 	struct obd_device *obd = m->private;
 	struct osc_device *od  = obd2osc_dev(obd);
 
-	return seq_printf(m, "%u\n", od->od_lockless_truncate);
+	seq_printf(m, "%u\n", od->od_lockless_truncate);
+	return 0;
 }
 
 static ssize_t osc_lockless_truncate_seq_write(struct file *file,
@@ -471,8 +473,9 @@ LPROC_SEQ_FOPS(osc_lockless_truncate);
 static int osc_destroys_in_flight_seq_show(struct seq_file *m, void *v)
 {
 	struct obd_device *obd = m->private;
-	return seq_printf(m, "%u\n",
-			atomic_read(&obd->u.cli.cl_destroy_in_flight));
+
+	seq_printf(m, "%u\n", atomic_read(&obd->u.cli.cl_destroy_in_flight));
+	return 0;
 }
 LPROC_SEQ_FOPS_RO(osc_destroys_in_flight);
 
diff --git a/drivers/staging/lustre/lustre/osc/osc_cache.c b/drivers/staging/lustre/lustre/osc/osc_cache.c
index 7022ed4..d44b3d4 100644
--- a/drivers/staging/lustre/lustre/osc/osc_cache.c
+++ b/drivers/staging/lustre/lustre/osc/osc_cache.c
@@ -2613,7 +2613,7 @@ int osc_queue_sync_pages(const struct lu_env *env, struct osc_object *obj,
 	}
 	osc_object_unlock(obj);
 
-	osc_io_unplug(env, cli, obj, PDL_POLICY_ROUND);
+	osc_io_unplug_async(env, cli, obj);
 	return 0;
 }
 
diff --git a/drivers/staging/lustre/lustre/osc/osc_io.c b/drivers/staging/lustre/lustre/osc/osc_io.c
index fad4c13..3c7300b 100644
--- a/drivers/staging/lustre/lustre/osc/osc_io.c
+++ b/drivers/staging/lustre/lustre/osc/osc_io.c
@@ -417,7 +417,7 @@ static int osc_io_setattr_start(const struct lu_env *env,
 
 			if (ia_valid & ATTR_SIZE) {
 				attr->cat_size = attr->cat_kms = size;
-				cl_valid = (CAT_SIZE | CAT_KMS);
+				cl_valid = CAT_SIZE | CAT_KMS;
 			}
 			if (ia_valid & ATTR_MTIME_SET) {
 				attr->cat_mtime = lvb->lvb_mtime;
diff --git a/drivers/staging/lustre/lustre/osc/osc_lock.c b/drivers/staging/lustre/lustre/osc/osc_lock.c
index 4456557..350ad49 100644
--- a/drivers/staging/lustre/lustre/osc/osc_lock.c
+++ b/drivers/staging/lustre/lustre/osc/osc_lock.c
@@ -1010,7 +1010,7 @@ static int osc_lock_enqueue_wait(const struct lu_env *env,
 	struct cl_lock_descr    *descr   = &lock->cll_descr;
 	struct cl_object_header *hdr     = cl_object_header(descr->cld_obj);
 	struct cl_lock	  *scan;
-	struct cl_lock	  *conflict= NULL;
+	struct cl_lock	  *conflict = NULL;
 	int lockless		     = osc_lock_is_lockless(olck);
 	int rc			   = 0;
 
diff --git a/drivers/staging/lustre/lustre/osc/osc_request.c b/drivers/staging/lustre/lustre/osc/osc_request.c
index 0adfa70..d7a9b65 100644
--- a/drivers/staging/lustre/lustre/osc/osc_request.c
+++ b/drivers/staging/lustre/lustre/osc/osc_request.c
@@ -1165,8 +1165,8 @@ static int check_write_rcs(struct ptlrpc_request *req,
 static inline int can_merge_pages(struct brw_page *p1, struct brw_page *p2)
 {
 	if (p1->flag != p2->flag) {
-		unsigned mask = ~(OBD_BRW_FROM_GRANT| OBD_BRW_NOCACHE|
-				  OBD_BRW_SYNC|OBD_BRW_ASYNC|OBD_BRW_NOQUOTA);
+		unsigned mask = ~(OBD_BRW_FROM_GRANT | OBD_BRW_NOCACHE |
+				  OBD_BRW_SYNC | OBD_BRW_ASYNC|OBD_BRW_NOQUOTA);
 
 		/* warn if we try to combine flags that we don't know to be
 		 * safe to combine */
@@ -1880,6 +1880,7 @@ int osc_build_rpc(const struct lu_env *env, struct client_obd *cli,
 	int				page_count = 0;
 	int				i;
 	int				rc;
+	struct ost_body			*body;
 	LIST_HEAD(rpc_list);
 
 	LASSERT(!list_empty(ext_list));
@@ -1981,6 +1982,8 @@ int osc_build_rpc(const struct lu_env *env, struct client_obd *cli,
 	 * later setattr before earlier BRW (as determined by the request xid),
 	 * the OST will not use BRW timestamps.  Sadly, there is no obvious
 	 * way to do this in a single call.  bug 10150 */
+	body = req_capsule_client_get(&req->rq_pill, &RMF_OST_BODY);
+	crattr->cra_oa = &body->oa;
 	cl_req_attr_set(env, clerq, crattr,
 			OBD_MD_FLMTIME|OBD_MD_FLCTIME|OBD_MD_FLATIME);
 
diff --git a/drivers/staging/lustre/lustre/ptlrpc/client.c b/drivers/staging/lustre/lustre/ptlrpc/client.c
index 4882dd0..0357f1d 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/client.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/client.c
@@ -285,14 +285,27 @@ static void ptlrpc_at_adj_net_latency(struct ptlrpc_request *req,
 	time_t now = get_seconds();
 
 	LASSERT(req->rq_import);
-	at = &req->rq_import->imp_at;
+
+	if (service_time > now - req->rq_sent + 3) {
+		/* bz16408, however, this can also happen if early reply
+		 * is lost and client RPC is expired and resent, early reply
+		 * or reply of original RPC can still be fit in reply buffer
+		 * of resent RPC, now client is measuring time from the
+		 * resent time, but server sent back service time of original
+		 * RPC.
+		 */
+		CDEBUG((lustre_msg_get_flags(req->rq_reqmsg) & MSG_RESENT) ?
+		       D_ADAPTTO : D_WARNING,
+		       "Reported service time %u > total measured time "
+		       CFS_DURATION_T"\n", service_time,
+		       cfs_time_sub(now, req->rq_sent));
+		return;
+	}
 
 	/* Network latency is total time less server processing time */
-	nl = max_t(int, now - req->rq_sent - service_time, 0) + 1/*st rounding*/;
-	if (service_time > now - req->rq_sent + 3 /* bz16408 */)
-		CWARN("Reported service time %u > total measured time "
-		      CFS_DURATION_T"\n", service_time,
-		      cfs_time_sub(now, req->rq_sent));
+	nl = max_t(int, now - req->rq_sent -
+			service_time, 0) + 1; /* st rounding */
+	at = &req->rq_import->imp_at;
 
 	oldnl = at_measured(&at->iat_net_latency, nl);
 	if (oldnl != 0)
@@ -468,7 +481,6 @@ void ptlrpc_add_rqs_to_pool(struct ptlrpc_request_pool *pool, int num_rq)
 		list_add_tail(&req->rq_list, &pool->prp_req_list);
 	}
 	spin_unlock(&pool->prp_lock);
-	return;
 }
 EXPORT_SYMBOL(ptlrpc_add_rqs_to_pool);
 
@@ -1439,12 +1451,11 @@ static int ptlrpc_send_new_req(struct ptlrpc_request *req)
 		if (req->rq_err) {
 			req->rq_status = rc;
 			return 1;
-		} else {
-			spin_lock(&req->rq_lock);
-			req->rq_wait_ctx = 1;
-			spin_unlock(&req->rq_lock);
-			return 0;
 		}
+		spin_lock(&req->rq_lock);
+		req->rq_wait_ctx = 1;
+		spin_unlock(&req->rq_lock);
+		return 0;
 	}
 
 	CDEBUG(D_RPCTRACE, "Sending RPC pname:cluuid:pid:xid:nid:opc %s:%s:%d:%llu:%s:%d\n",
@@ -2192,7 +2203,7 @@ int ptlrpc_set_wait(struct ptlrpc_request_set *set)
 	if (set->set_interpret != NULL) {
 		int (*interpreter)(struct ptlrpc_request_set *set, void *, int) =
 			set->set_interpret;
-		rc = interpreter (set, set->set_arg, rc);
+		rc = interpreter(set, set->set_arg, rc);
 	} else {
 		struct ptlrpc_set_cbdata *cbdata, *n;
 		int err;
diff --git a/drivers/staging/lustre/lustre/ptlrpc/connection.c b/drivers/staging/lustre/lustre/ptlrpc/connection.c
index 2a875ab..7e27397 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/connection.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/connection.c
@@ -184,6 +184,7 @@ static void *
 conn_key(struct hlist_node *hnode)
 {
 	struct ptlrpc_connection *conn;
+
 	conn = hlist_entry(hnode, struct ptlrpc_connection, c_hash);
 	return &conn->c_peer;
 }
diff --git a/drivers/staging/lustre/lustre/ptlrpc/import.c b/drivers/staging/lustre/lustre/ptlrpc/import.c
index 4ceb90d..d5fc689 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/import.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/import.c
@@ -63,6 +63,19 @@ struct ptlrpc_connect_async_args {
 static void __import_set_state(struct obd_import *imp,
 			       enum lustre_imp_state state)
 {
+	switch (state) {
+	case LUSTRE_IMP_CLOSED:
+	case LUSTRE_IMP_NEW:
+	case LUSTRE_IMP_DISCON:
+	case LUSTRE_IMP_CONNECTING:
+		break;
+	case LUSTRE_IMP_REPLAY_WAIT:
+		imp->imp_replay_state = LUSTRE_IMP_REPLAY_LOCKS;
+		break;
+	default:
+		imp->imp_replay_state = LUSTRE_IMP_REPLAY;
+	}
+
 	imp->imp_state = state;
 	imp->imp_state_hist[imp->imp_state_hist_idx].ish_state = state;
 	imp->imp_state_hist[imp->imp_state_hist_idx].ish_time =
@@ -966,7 +979,7 @@ static int ptlrpc_connect_interpret(const struct lu_env *env,
 			imp->imp_resend_replay = 1;
 			spin_unlock(&imp->imp_lock);
 
-			IMPORT_SET_STATE(imp, LUSTRE_IMP_REPLAY);
+			IMPORT_SET_STATE(imp, imp->imp_replay_state);
 		} else {
 			IMPORT_SET_STATE(imp, LUSTRE_IMP_RECOVER);
 		}
diff --git a/drivers/staging/lustre/lustre/ptlrpc/layout.c b/drivers/staging/lustre/lustre/ptlrpc/layout.c
index bbef666b..a42335e 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/layout.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/layout.c
@@ -811,8 +811,8 @@ struct req_capsule;
 	.rmf_name    = (name),				  \
 	.rmf_flags   = (flags),				 \
 	.rmf_size    = (size),				  \
-	.rmf_swabber = (void (*)(void*))(swabber),	      \
-	.rmf_dumper  = (void (*)(void*))(dumper)		\
+	.rmf_swabber = (void (*)(void *))(swabber),	      \
+	.rmf_dumper  = (void (*)(void *))(dumper)		\
 }
 
 struct req_msg_field RMF_GENERIC_DATA =
@@ -1839,7 +1839,7 @@ static int __req_capsule_offset(const struct req_capsule *pill,
 	LASSERTF(offset > 0, "%s:%s, off=%d, loc=%d\n",
 			    pill->rc_fmt->rf_name,
 			    field->rmf_name, offset, loc);
-	offset --;
+	offset--;
 
 	LASSERT(0 <= offset && offset < REQ_MAX_FIELD_NR);
 	return offset;
diff --git a/drivers/staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c b/drivers/staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c
index 0e2071b..9533ab9 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c
@@ -181,7 +181,7 @@ static const char *ll_eopcode2str(__u32 opcode)
 	return ll_eopcode_table[opcode].opname;
 }
 
-#if defined (CONFIG_PROC_FS)
+#if defined(CONFIG_PROC_FS)
 static void ptlrpc_lprocfs_register(struct proc_dir_entry *root, char *dir,
 				    char *name,
 				    struct proc_dir_entry **procroot_ret,
@@ -267,7 +267,8 @@ ptlrpc_lprocfs_req_history_len_seq_show(struct seq_file *m, void *v)
 	ptlrpc_service_for_each_part(svcpt, i, svc)
 		total += svcpt->scp_hist_nrqbds;
 
-	return seq_printf(m, "%d\n", total);
+	seq_printf(m, "%d\n", total);
+	return 0;
 }
 LPROC_SEQ_FOPS_RO(ptlrpc_lprocfs_req_history_len);
 
@@ -282,7 +283,8 @@ ptlrpc_lprocfs_req_history_max_seq_show(struct seq_file *m, void *n)
 	ptlrpc_service_for_each_part(svcpt, i, svc)
 		total += svc->srv_hist_nrqbds_cpt_max;
 
-	return seq_printf(m, "%d\n", total);
+	seq_printf(m, "%d\n", total);
+	return 0;
 }
 
 static ssize_t
@@ -327,8 +329,8 @@ ptlrpc_lprocfs_threads_min_seq_show(struct seq_file *m, void *n)
 {
 	struct ptlrpc_service *svc = m->private;
 
-	return seq_printf(m, "%d\n",
-			svc->srv_nthrs_cpt_init * svc->srv_ncpts);
+	seq_printf(m, "%d\n", svc->srv_nthrs_cpt_init * svc->srv_ncpts);
+	return 0;
 }
 
 static ssize_t
@@ -371,7 +373,8 @@ ptlrpc_lprocfs_threads_started_seq_show(struct seq_file *m, void *n)
 	ptlrpc_service_for_each_part(svcpt, i, svc)
 		total += svcpt->scp_nthrs_running;
 
-	return seq_printf(m, "%d\n", total);
+	seq_printf(m, "%d\n", total);
+	return 0;
 }
 LPROC_SEQ_FOPS_RO(ptlrpc_lprocfs_threads_started);
 
@@ -380,8 +383,8 @@ ptlrpc_lprocfs_threads_max_seq_show(struct seq_file *m, void *n)
 {
 	struct ptlrpc_service *svc = m->private;
 
-	return seq_printf(m, "%d\n",
-			svc->srv_nthrs_cpt_limit * svc->srv_ncpts);
+	seq_printf(m, "%d\n", svc->srv_nthrs_cpt_limit * svc->srv_ncpts);
+	return 0;
 }
 
 static ssize_t
@@ -1026,7 +1029,8 @@ LPROC_SEQ_FOPS_RO(ptlrpc_lprocfs_timeouts);
 static int ptlrpc_lprocfs_hp_ratio_seq_show(struct seq_file *m, void *v)
 {
 	struct ptlrpc_service *svc = m->private;
-	return seq_printf(m, "%d", svc->srv_hpreq_ratio);
+	seq_printf(m, "%d", svc->srv_hpreq_ratio);
+	return 0;
 }
 
 static ssize_t ptlrpc_lprocfs_hp_ratio_seq_write(struct file *file,
@@ -1083,7 +1087,7 @@ void ptlrpc_lprocfs_register_service(struct proc_dir_entry *entry,
 		 .data	     = svc},
 		{NULL}
 	};
-	static struct file_operations req_history_fops = {
+	static const struct file_operations req_history_fops = {
 		.owner       = THIS_MODULE,
 		.open	= ptlrpc_lprocfs_svc_req_history_open,
 		.read	= seq_read,
@@ -1324,13 +1328,12 @@ int lprocfs_rd_pinger_recov(struct seq_file *m, void *n)
 {
 	struct obd_device *obd = m->private;
 	struct obd_import *imp = obd->u.cli.cl_import;
-	int rc;
 
 	LPROCFS_CLIMP_CHECK(obd);
-	rc = seq_printf(m, "%d\n", !imp->imp_no_pinger_recover);
+	seq_printf(m, "%d\n", !imp->imp_no_pinger_recover);
 	LPROCFS_CLIMP_EXIT(obd);
 
-	return rc;
+	return 0;
 }
 EXPORT_SYMBOL(lprocfs_rd_pinger_recov);
 
diff --git a/drivers/staging/lustre/lustre/ptlrpc/niobuf.c b/drivers/staging/lustre/lustre/ptlrpc/niobuf.c
index f715e9a..2fa2585 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/niobuf.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/niobuf.c
@@ -383,12 +383,13 @@ int ptlrpc_send_reply(struct ptlrpc_request *req, int flags)
 		       req->rq_export->exp_obd->obd_minor);
 	}
 
-	/* In order to keep interoprability with the client (< 2.3) which
+	/* In order to keep interoperability with the client (< 2.3) which
 	 * doesn't have pb_jobid in ptlrpc_body, We have to shrink the
 	 * ptlrpc_body in reply buffer to ptlrpc_body_v2, otherwise, the
 	 * reply buffer on client will be overflow.
 	 *
-	 * XXX Remove this whenever we drop the interoprability with such client.
+	 * XXX Remove this whenever we drop the interoperability with
+	 * such client.
 	 */
 	req->rq_replen = lustre_shrink_msg(req->rq_repmsg, 0,
 					   sizeof(struct ptlrpc_body_v2), 1);
diff --git a/drivers/staging/lustre/lustre/ptlrpc/nrs.c b/drivers/staging/lustre/lustre/ptlrpc/nrs.c
index d5fd721..81ad747 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/nrs.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/nrs.c
@@ -155,9 +155,8 @@ static void nrs_policy_stop_primary(struct ptlrpc_nrs *nrs)
 {
 	struct ptlrpc_nrs_policy *tmp = nrs->nrs_policy_primary;
 
-	if (tmp == NULL) {
+	if (tmp == NULL)
 		return;
-	}
 
 	nrs->nrs_policy_primary = NULL;
 
@@ -912,7 +911,6 @@ static int nrs_register_policies_locked(struct ptlrpc_nrs *nrs)
 static int nrs_svcpt_setup_locked0(struct ptlrpc_nrs *nrs,
 				   struct ptlrpc_service_part *svcpt)
 {
-	int				rc;
 	enum ptlrpc_nrs_queue_type	queue;
 
 	LASSERT(mutex_is_locked(&nrs_core.nrs_mutex));
@@ -930,9 +928,7 @@ static int nrs_svcpt_setup_locked0(struct ptlrpc_nrs *nrs,
 	INIT_LIST_HEAD(&nrs->nrs_policy_list);
 	INIT_LIST_HEAD(&nrs->nrs_policy_queued);
 
-	rc = nrs_register_policies_locked(nrs);
-
-	return rc;
+	return nrs_register_policies_locked(nrs);
 }
 
 /**
diff --git a/drivers/staging/lustre/lustre/ptlrpc/pack_generic.c b/drivers/staging/lustre/lustre/ptlrpc/pack_generic.c
index 2f45f765..b51af9b 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/pack_generic.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/pack_generic.c
@@ -117,13 +117,13 @@ EXPORT_SYMBOL(lustre_msg_check_version);
 /* early reply size */
 int lustre_msg_early_size(void)
 {
-	static int size = 0;
+	static int size;
 	if (!size) {
-		/* Always reply old ptlrpc_body_v2 to keep interoprability
+		/* Always reply old ptlrpc_body_v2 to keep interoperability
 		 * with the old client (< 2.3) which doesn't have pb_jobid
 		 * in the ptlrpc_body.
 		 *
-		 * XXX Remove this whenever we drop interoprability with such
+		 * XXX Remove this whenever we drop interoperability with such
 		 *     client.
 		 */
 		__u32 pblen = sizeof(struct ptlrpc_body_v2);
diff --git a/drivers/staging/lustre/lustre/ptlrpc/pinger.c b/drivers/staging/lustre/lustre/ptlrpc/pinger.c
index 340d98a..9dbda93 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/pinger.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/pinger.c
@@ -545,7 +545,7 @@ void ptlrpc_pinger_wake_up(void)
 #define PET_READY     1
 #define PET_TERMINATE 2
 
-static int	       pet_refcount = 0;
+static int pet_refcount;
 static int	       pet_state;
 static wait_queue_head_t       pet_waitq;
 LIST_HEAD(pet_list);
diff --git a/drivers/staging/lustre/lustre/ptlrpc/ptlrpc_internal.h b/drivers/staging/lustre/lustre/ptlrpc/ptlrpc_internal.h
index 7fe2e58..a66dc3c 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/ptlrpc_internal.h
+++ b/drivers/staging/lustre/lustre/ptlrpc/ptlrpc_internal.h
@@ -76,7 +76,7 @@ void ptlrpc_initiate_recovery(struct obd_import *imp);
 int lustre_unpack_req_ptlrpc_body(struct ptlrpc_request *req, int offset);
 int lustre_unpack_rep_ptlrpc_body(struct ptlrpc_request *req, int offset);
 
-#if defined (CONFIG_PROC_FS)
+#if defined(CONFIG_PROC_FS)
 void ptlrpc_lprocfs_register_service(struct proc_dir_entry *proc_entry,
 				     struct ptlrpc_service *svc);
 void ptlrpc_lprocfs_unregister_service(struct ptlrpc_service *svc);
@@ -263,7 +263,7 @@ void sptlrpc_enc_pool_fini(void);
 int sptlrpc_proc_enc_pool_seq_show(struct seq_file *m, void *v);
 
 /* sec_lproc.c */
-#if defined (CONFIG_PROC_FS)
+#if defined(CONFIG_PROC_FS)
 int  sptlrpc_lproc_init(void);
 void sptlrpc_lproc_fini(void);
 #else
diff --git a/drivers/staging/lustre/lustre/ptlrpc/ptlrpcd.c b/drivers/staging/lustre/lustre/ptlrpc/ptlrpcd.c
index 4621b71..0c178ec 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/ptlrpcd.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/ptlrpcd.c
@@ -85,7 +85,7 @@ MODULE_PARM_DESC(ptlrpcd_bind_policy, "Ptlrpcd threads binding mode.");
 static struct ptlrpcd *ptlrpcds;
 
 struct mutex ptlrpcd_mutex;
-static int ptlrpcd_users = 0;
+static int ptlrpcd_users;
 
 void ptlrpcd_wake(struct ptlrpc_request *req)
 {
@@ -511,10 +511,10 @@ static int ptlrpcd_bind(int index, int max)
 #if defined(CONFIG_NUMA)
 	{
 		int i;
-		mask = *cpumask_of_node(cpu_to_node(index));
+		cpumask_copy(&mask, cpumask_of_node(cpu_to_node(index)));
 		for (i = max; i < num_online_cpus(); i++)
-			cpu_clear(i, mask);
-		pc->pc_npartners = cpus_weight(mask) - 1;
+			cpumask_clear_cpu(i, &mask);
+		pc->pc_npartners = cpumask_weight(&mask) - 1;
 		set_bit(LIOD_BIND, &pc->pc_flags);
 	}
 #else
@@ -554,7 +554,7 @@ static int ptlrpcd_bind(int index, int max)
 				 * that are already initialized
 				 */
 				for (pidx = 0, i = 0; i < index; i++) {
-					if (cpu_isset(i, mask)) {
+					if (cpumask_test_cpu(i, &mask)) {
 						ppc = &ptlrpcds->pd_threads[i];
 						pc->pc_partners[pidx++] = ppc;
 						ppc->pc_partners[ppc->
diff --git a/drivers/staging/lustre/lustre/ptlrpc/sec_bulk.c b/drivers/staging/lustre/lustre/ptlrpc/sec_bulk.c
index 0dabd83..c05a855 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/sec_bulk.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/sec_bulk.c
@@ -125,52 +125,50 @@ static struct ptlrpc_enc_page_pool {
  */
 int sptlrpc_proc_enc_pool_seq_show(struct seq_file *m, void *v)
 {
-	int     rc;
-
 	spin_lock(&page_pools.epp_lock);
 
-	rc = seq_printf(m,
-		      "physical pages:	  %lu\n"
-		      "pages per pool:	  %lu\n"
-		      "max pages:	       %lu\n"
-		      "max pools:	       %u\n"
-		      "total pages:	     %lu\n"
-		      "total free:	      %lu\n"
-		      "idle index:	      %lu/100\n"
-		      "last shrink:	     %lds\n"
-		      "last access:	     %lds\n"
-		      "max pages reached:       %lu\n"
-		      "grows:		   %u\n"
-		      "grows failure:	   %u\n"
-		      "shrinks:		 %u\n"
-		      "cache access:	    %lu\n"
-		      "cache missing:	   %lu\n"
-		      "low free mark:	   %lu\n"
-		      "max waitqueue depth:     %u\n"
-		      "max wait time:	   "CFS_TIME_T"/%u\n"
-		      ,
-		      totalram_pages,
-		      PAGES_PER_POOL,
-		      page_pools.epp_max_pages,
-		      page_pools.epp_max_pools,
-		      page_pools.epp_total_pages,
-		      page_pools.epp_free_pages,
-		      page_pools.epp_idle_idx,
-		      get_seconds() - page_pools.epp_last_shrink,
-		      get_seconds() - page_pools.epp_last_access,
-		      page_pools.epp_st_max_pages,
-		      page_pools.epp_st_grows,
-		      page_pools.epp_st_grow_fails,
-		      page_pools.epp_st_shrinks,
-		      page_pools.epp_st_access,
-		      page_pools.epp_st_missings,
-		      page_pools.epp_st_lowfree,
-		      page_pools.epp_st_max_wqlen,
-		      page_pools.epp_st_max_wait, HZ
-		     );
+	seq_printf(m,
+		   "physical pages:	  %lu\n"
+		   "pages per pool:	  %lu\n"
+		   "max pages:	       %lu\n"
+		   "max pools:	       %u\n"
+		   "total pages:	     %lu\n"
+		   "total free:	      %lu\n"
+		   "idle index:	      %lu/100\n"
+		   "last shrink:	     %lds\n"
+		   "last access:	     %lds\n"
+		   "max pages reached:       %lu\n"
+		   "grows:		   %u\n"
+		   "grows failure:	   %u\n"
+		   "shrinks:		 %u\n"
+		   "cache access:	    %lu\n"
+		   "cache missing:	   %lu\n"
+		   "low free mark:	   %lu\n"
+		   "max waitqueue depth:     %u\n"
+		   "max wait time:	   " CFS_TIME_T "/%u\n",
+		   totalram_pages,
+		   PAGES_PER_POOL,
+		   page_pools.epp_max_pages,
+		   page_pools.epp_max_pools,
+		   page_pools.epp_total_pages,
+		   page_pools.epp_free_pages,
+		   page_pools.epp_idle_idx,
+		   get_seconds() - page_pools.epp_last_shrink,
+		   get_seconds() - page_pools.epp_last_access,
+		   page_pools.epp_st_max_pages,
+		   page_pools.epp_st_grows,
+		   page_pools.epp_st_grow_fails,
+		   page_pools.epp_st_shrinks,
+		   page_pools.epp_st_access,
+		   page_pools.epp_st_missings,
+		   page_pools.epp_st_lowfree,
+		   page_pools.epp_st_max_wqlen,
+		   page_pools.epp_st_max_wait,
+		   HZ);
 
 	spin_unlock(&page_pools.epp_lock);
-	return rc;
+
+	return 0;
 }
 
 static void enc_pools_release_free_pages(long npages)
@@ -365,8 +363,8 @@ static void enc_pools_insert(struct page ***pools, int npools, int npages)
 	 */
 	cur_npools = (page_pools.epp_total_pages + PAGES_PER_POOL - 1) /
 		     PAGES_PER_POOL;
-	end_npools = (page_pools.epp_total_pages + npages + PAGES_PER_POOL - 1) /
-		     PAGES_PER_POOL;
+	end_npools = (page_pools.epp_total_pages + npages + PAGES_PER_POOL - 1)
+		     / PAGES_PER_POOL;
 	LASSERT(end_npools <= page_pools.epp_max_pools);
 
 	np_idx = 0;
@@ -816,9 +814,8 @@ int bulk_sec_desc_unpack(struct lustre_msg *msg, int offset, int swabbed)
 		return -EINVAL;
 	}
 
-	if (swabbed) {
+	if (swabbed)
 		__swab32s(&bsd->bsd_nob);
-	}
 
 	if (unlikely(bsd->bsd_version != 0)) {
 		CERROR("Unexpected version %u\n", bsd->bsd_version);
diff --git a/drivers/staging/lustre/lustre/ptlrpc/service.c b/drivers/staging/lustre/lustre/ptlrpc/service.c
index 635b12b..8e61421 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/service.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/service.c
@@ -543,7 +543,6 @@ ptlrpc_server_nthreads_check(struct ptlrpc_service *svc,
 	if (tc->tc_thr_factor != 0) {
 		int	  factor = tc->tc_thr_factor;
 		const int fade = 4;
-		cpumask_t mask;
 
 		/*
 		 * User wants to increase number of threads with for
@@ -557,8 +556,8 @@ ptlrpc_server_nthreads_check(struct ptlrpc_service *svc,
 		 * have too many threads no matter how many cores/HTs
 		 * there are.
 		 */
-		cpumask_copy(&mask, topology_thread_cpumask(0));
-		if (cpus_weight(mask) > 1) { /* weight is # of HTs */
+		/* weight is # of HTs */
+		if (cpumask_weight(topology_thread_cpumask(0)) > 1) {
 			/* depress thread factor for hyper-thread */
 			factor = factor - (factor >> 1) + (factor >> 3);
 		}
@@ -2752,7 +2751,6 @@ int ptlrpc_start_thread(struct ptlrpc_service_part *svcpt, int wait)
 
 int ptlrpc_hr_init(void)
 {
-	cpumask_t			mask;
 	struct ptlrpc_hr_partition	*hrp;
 	struct ptlrpc_hr_thread		*hrt;
 	int				rc;
@@ -2770,8 +2768,7 @@ int ptlrpc_hr_init(void)
 
 	init_waitqueue_head(&ptlrpc_hr.hr_waitq);
 
-	cpumask_copy(&mask, topology_thread_cpumask(0));
-	weight = cpus_weight(mask);
+	weight = cpumask_weight(topology_thread_cpumask(0));
 
 	cfs_percpt_for_each(hrp, i, ptlrpc_hr.hr_partitions) {
 		hrp->hrp_cpt = i;
diff --git a/drivers/staging/media/bcm2048/radio-bcm2048.c b/drivers/staging/media/bcm2048/radio-bcm2048.c
index 5382506..f28ffef 100644
--- a/drivers/staging/media/bcm2048/radio-bcm2048.c
+++ b/drivers/staging/media/bcm2048/radio-bcm2048.c
@@ -1448,8 +1448,8 @@ static void bcm2048_parse_rds_pi(struct bcm2048_device *bdev)
 		/* Block A match, only data without crc errors taken */
 		if (bdev->rds_info.radio_text[i] == BCM2048_RDS_BLOCK_A) {
 
-			pi = ((bdev->rds_info.radio_text[i+1] << 8) +
-				bdev->rds_info.radio_text[i+2]);
+			pi = (bdev->rds_info.radio_text[i+1] << 8) +
+				bdev->rds_info.radio_text[i+2];
 
 			if (!bdev->rds_info.rds_pi) {
 				bdev->rds_info.rds_pi = pi;
@@ -1503,8 +1503,8 @@ static int bcm2048_parse_rt_match_b(struct bcm2048_device *bdev, int i)
 	if ((bdev->rds_info.radio_text[i] & BCM2048_RDS_BLOCK_MASK) ==
 		BCM2048_RDS_BLOCK_B) {
 
-		rt_id = (bdev->rds_info.radio_text[i+1] &
-			BCM2048_RDS_BLOCK_MASK);
+		rt_id = bdev->rds_info.radio_text[i+1] &
+			BCM2048_RDS_BLOCK_MASK;
 		rt_group_b = bdev->rds_info.radio_text[i+1] &
 			BCM2048_RDS_GROUP_AB_MASK;
 		rt_ab = bdev->rds_info.radio_text[i+2] &
@@ -1792,7 +1792,7 @@ static int bcm2048_get_rds_data(struct bcm2048_device *bdev, char *data)
 		goto unlock;
 	}
 
-	data_buffer = kzalloc(BCM2048_MAX_RDS_RADIO_TEXT*5, GFP_KERNEL);
+	data_buffer = kcalloc(BCM2048_MAX_RDS_RADIO_TEXT, 5, GFP_KERNEL);
 	if (!data_buffer) {
 		err = -ENOMEM;
 		goto unlock;
@@ -2245,8 +2245,7 @@ static ssize_t bcm2048_fops_read(struct file *file, char __user *buf,
 
 		tmpbuf[i] = bdev->rds_info.radio_text[bdev->rd_index+i+2];
 		tmpbuf[i+1] = bdev->rds_info.radio_text[bdev->rd_index+i+1];
-		tmpbuf[i+2] = ((bdev->rds_info.radio_text[bdev->rd_index+i]
-				& 0xf0) >> 4);
+		tmpbuf[i+2] = (bdev->rds_info.radio_text[bdev->rd_index + i] & 0xf0) >> 4;
 		if ((bdev->rds_info.radio_text[bdev->rd_index+i] &
 			BCM2048_RDS_CRC_MASK) == BCM2048_RDS_CRC_UNRECOVARABLE)
 			tmpbuf[i+2] |= 0x80;
@@ -2718,22 +2717,7 @@ static struct i2c_driver bcm2048_i2c_driver = {
 	.id_table	= bcm2048_id,
 };
 
-/*
- *	Module Interface
- */
-static int __init bcm2048_module_init(void)
-{
-	pr_info(BCM2048_DRIVER_DESC "\n");
-
-	return i2c_add_driver(&bcm2048_i2c_driver);
-}
-module_init(bcm2048_module_init);
-
-static void __exit bcm2048_module_exit(void)
-{
-	i2c_del_driver(&bcm2048_i2c_driver);
-}
-module_exit(bcm2048_module_exit);
+module_i2c_driver(bcm2048_i2c_driver);
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR(BCM2048_DRIVER_AUTHOR);
diff --git a/drivers/staging/media/cxd2099/cxd2099.c b/drivers/staging/media/cxd2099/cxd2099.c
index 657ea48..692ba3e 100644
--- a/drivers/staging/media/cxd2099/cxd2099.c
+++ b/drivers/staging/media/cxd2099/cxd2099.c
@@ -25,7 +25,6 @@
 #include <linux/slab.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
-#include <linux/moduleparam.h>
 #include <linux/i2c.h>
 #include <linux/wait.h>
 #include <linux/delay.h>
diff --git a/drivers/staging/media/davinci_vpfe/dm365_ipipeif.c b/drivers/staging/media/davinci_vpfe/dm365_ipipeif.c
index 87d42e1..17e105e 100644
--- a/drivers/staging/media/davinci_vpfe/dm365_ipipeif.c
+++ b/drivers/staging/media/davinci_vpfe/dm365_ipipeif.c
@@ -209,10 +209,10 @@ static int ipipeif_hw_setup(struct v4l2_subdev *sd)
 	/* Combine all the fields to make CFG1 register of IPIPEIF */
 	tmp = val = get_oneshot_mode(ipipeif->input);
 	if (tmp < 0) {
-		pr_err("ipipeif: links setup required");
+		dev_err(&sd->devnode->dev, "ipipeif: links setup required");
 		return -EINVAL;
 	}
-	val = val << ONESHOT_SHIFT;
+	val <<= ONESHOT_SHIFT;
 
 	ipipeif_source = ipipeif_get_source(ipipeif);
 	val |= ipipeif_source << INPSRC_SHIFT;
@@ -747,7 +747,6 @@ static void ipipeif_set_default_config(struct vpfe_ipipeif_device *ipipeif)
 			.clip = 4095,
 		},
 	};
-	memset(&ipipeif->config, 0, sizeof(struct ipipeif_params));
 	memcpy(&ipipeif->config, &ipipeif_defaults,
 	       sizeof(struct ipipeif_params));
 }
diff --git a/drivers/staging/media/davinci_vpfe/dm365_resizer.c b/drivers/staging/media/davinci_vpfe/dm365_resizer.c
index 75e70e1..7cc8d1b 100644
--- a/drivers/staging/media/davinci_vpfe/dm365_resizer.c
+++ b/drivers/staging/media/davinci_vpfe/dm365_resizer.c
@@ -907,7 +907,6 @@ resizer_set_defualt_configuration(struct vpfe_resizer_device *resizer)
 			.out_chr_pos = VPFE_IPIPE_YUV422_CHR_POS_COSITE,
 		},
 	};
-	memset(&resizer->config, 0, sizeof(struct resizer_params));
 	memcpy(&resizer->config, &rsz_default_config,
 	       sizeof(struct resizer_params));
 }
diff --git a/drivers/staging/media/davinci_vpfe/vpfe_mc_capture.c b/drivers/staging/media/davinci_vpfe/vpfe_mc_capture.c
index a350a20..5742619 100644
--- a/drivers/staging/media/davinci_vpfe/vpfe_mc_capture.c
+++ b/drivers/staging/media/davinci_vpfe/vpfe_mc_capture.c
@@ -226,8 +226,8 @@ static int vpfe_enable_clock(struct vpfe_device *vpfe_dev)
 	if (!vpfe_cfg->num_clocks)
 		return 0;
 
-	vpfe_dev->clks = kzalloc(vpfe_cfg->num_clocks *
-				   sizeof(struct clock *), GFP_KERNEL);
+	vpfe_dev->clks = kcalloc(vpfe_cfg->num_clocks,
+				 sizeof(struct clock *), GFP_KERNEL);
 	if (vpfe_dev->clks == NULL)
 		return -ENOMEM;
 
@@ -346,7 +346,8 @@ static int register_i2c_devices(struct vpfe_device *vpfe_dev)
 	i2c_adap = i2c_get_adapter(1);
 	num_subdevs = vpfe_cfg->num_subdevs;
 	vpfe_dev->sd =
-		  kzalloc(sizeof(struct v4l2_subdev *)*num_subdevs, GFP_KERNEL);
+		  kcalloc(num_subdevs, sizeof(struct v4l2_subdev *),
+			  GFP_KERNEL);
 	if (vpfe_dev->sd == NULL)
 		return -ENOMEM;
 
diff --git a/drivers/staging/media/lirc/lirc_imon.c b/drivers/staging/media/lirc/lirc_imon.c
index 9ce7d99..335b98a 100644
--- a/drivers/staging/media/lirc/lirc_imon.c
+++ b/drivers/staging/media/lirc/lirc_imon.c
@@ -208,8 +208,7 @@ static void deregister_from_lirc(struct imon_context *context)
 	retval = lirc_unregister_driver(minor);
 	if (retval)
 		dev_err(&context->usbdev->dev,
-			": %s: unable to deregister from lirc(%d)",
-			__func__, retval);
+			"unable to deregister from lirc(%d)", retval);
 	else
 		dev_info(&context->usbdev->dev,
 			 "Deregistered iMON driver (minor:%d)\n", minor);
@@ -241,9 +240,8 @@ static int display_open(struct inode *inode, struct file *file)
 	context = usb_get_intfdata(interface);
 
 	if (!context) {
-		dev_err(&interface->dev,
-			"%s: no context found for minor %d\n",
-			__func__, subminor);
+		dev_err(&interface->dev, "no context found for minor %d\n",
+			subminor);
 		retval = -ENODEV;
 		goto exit;
 	}
@@ -339,13 +337,13 @@ static int send_packet(struct imon_context *context)
 	context->tx_urb->actual_length = 0;
 
 	init_completion(&context->tx.finished);
-	atomic_set(&(context->tx.busy), 1);
+	atomic_set(&context->tx.busy, 1);
 
 	retval = usb_submit_urb(context->tx_urb, GFP_KERNEL);
 	if (retval) {
-		atomic_set(&(context->tx.busy), 0);
-		dev_err(&context->usbdev->dev,
-			"%s: error submitting urb(%d)\n", __func__, retval);
+		atomic_set(&context->tx.busy, 0);
+		dev_err(&context->usbdev->dev, "error submitting urb(%d)\n",
+			retval);
 	} else {
 		/* Wait for transmission to complete (or abort) */
 		mutex_unlock(&context->ctx_lock);
@@ -359,8 +357,7 @@ static int send_packet(struct imon_context *context)
 		retval = context->tx.status;
 		if (retval)
 			dev_err(&context->usbdev->dev,
-				"%s: packet tx failed (%d)\n",
-				__func__, retval);
+				"packet tx failed (%d)\n", retval);
 	}
 
 	return retval;
@@ -437,8 +434,8 @@ static ssize_t vfd_write(struct file *file, const char __user *buf,
 		retval = send_packet(context);
 		if (retval) {
 			dev_err(&context->usbdev->dev,
-				"%s: send packet failed for packet #%d\n",
-				__func__, seq/2);
+				"send packet failed for packet #%d\n",
+				seq / 2);
 			goto exit;
 		} else {
 			seq += 2;
@@ -454,8 +451,8 @@ static ssize_t vfd_write(struct file *file, const char __user *buf,
 		retval = send_packet(context);
 		if (retval)
 			dev_err(&context->usbdev->dev,
-				"%s: send packet failed for packet #%d\n",
-					__func__, seq/2);
+				"send packet failed for packet #%d\n",
+				seq / 2);
 	}
 
 exit:
@@ -877,8 +874,7 @@ static int imon_probe(struct usb_interface *interface,
 	retval = usb_submit_urb(context->rx_urb, GFP_KERNEL);
 
 	if (retval) {
-		dev_err(dev, "%s: usb_submit_urb failed for intf0 (%d)\n",
-			__func__, retval);
+		dev_err(dev, "usb_submit_urb failed for intf0 (%d)\n", retval);
 		alloc_status = 8;
 		goto unlock;
 	}
diff --git a/drivers/staging/media/lirc/lirc_parallel.c b/drivers/staging/media/lirc/lirc_parallel.c
index 19c5c21..c140834 100644
--- a/drivers/staging/media/lirc/lirc_parallel.c
+++ b/drivers/staging/media/lirc/lirc_parallel.c
@@ -161,8 +161,8 @@ static unsigned int init_lirc_timer(void)
 			     || (now.tv_sec == tv.tv_sec
 				 && now.tv_usec < tv.tv_usec)));
 
-	timeelapsed = ((now.tv_sec + 1 - tv.tv_sec)*1000000
-		     + (now.tv_usec - tv.tv_usec));
+	timeelapsed = (now.tv_sec + 1 - tv.tv_sec)*1000000
+		     + (now.tv_usec - tv.tv_usec);
 	if (count >= 1000 && timeelapsed > 0) {
 		if (default_timer == 0) {
 			/* autodetect timer */
@@ -336,7 +336,7 @@ static ssize_t lirc_read(struct file *filep, char __user *buf, size_t n,
 	set_current_state(TASK_INTERRUPTIBLE);
 	while (count < n) {
 		if (rptr != wptr) {
-			if (copy_to_user(buf+count, (char *) &rbuf[rptr],
+			if (copy_to_user(buf+count, &rbuf[rptr],
 					 sizeof(int))) {
 				result = -EFAULT;
 				break;
diff --git a/drivers/staging/media/lirc/lirc_sasem.c b/drivers/staging/media/lirc/lirc_sasem.c
index 4a26820..9e56743 100644
--- a/drivers/staging/media/lirc/lirc_sasem.c
+++ b/drivers/staging/media/lirc/lirc_sasem.c
@@ -170,9 +170,6 @@ static void delete_context(struct sasem_context *context)
 	kfree(context->driver->rbuf);
 	kfree(context->driver);
 	kfree(context);
-
-	if (debug)
-		pr_info("%s: context deleted\n", __func__);
 }
 
 static void deregister_from_lirc(struct sasem_context *context)
@@ -182,10 +179,12 @@ static void deregister_from_lirc(struct sasem_context *context)
 
 	retval = lirc_unregister_driver(minor);
 	if (retval)
-		pr_err("%s: unable to deregister from lirc (%d)\n",
+		dev_err(&context->dev->dev,
+			"%s: unable to deregister from lirc (%d)\n",
 		       __func__, retval);
 	else
-		pr_info("Deregistered Sasem driver (minor:%d)\n", minor);
+		dev_info(&context->dev->dev,
+		         "Deregistered Sasem driver (minor:%d)\n", minor);
 
 }
 
@@ -214,9 +213,8 @@ static int vfd_open(struct inode *inode, struct file *file)
 	context = usb_get_intfdata(interface);
 
 	if (!context) {
-		dev_err(&interface->dev,
-			"%s: no context found for minor %d\n",
-			__func__, subminor);
+		dev_err(&interface->dev, "no context found for minor %d\n",
+			subminor);
 		retval = -ENODEV;
 		goto exit;
 	}
@@ -332,13 +330,13 @@ static int send_packet(struct sasem_context *context)
 	context->tx_urb->actual_length = 0;
 
 	init_completion(&context->tx.finished);
-	atomic_set(&(context->tx.busy), 1);
+	atomic_set(&context->tx.busy, 1);
 
 	retval =  usb_submit_urb(context->tx_urb, GFP_KERNEL);
 	if (retval) {
-		atomic_set(&(context->tx.busy), 0);
-		dev_err(&context->dev->dev, "%s: error submitting urb (%d)\n",
-			__func__, retval);
+		atomic_set(&context->tx.busy, 0);
+		dev_err(&context->dev->dev, "error submitting urb (%d)\n",
+			retval);
 	} else {
 		/* Wait for transmission to complete (or abort) */
 		mutex_unlock(&context->ctx_lock);
@@ -348,8 +346,7 @@ static int send_packet(struct sasem_context *context)
 		retval = context->tx.status;
 		if (retval)
 			dev_err(&context->dev->dev,
-				"%s: packet tx failed (%d)\n",
-				__func__, retval);
+				"packet tx failed (%d)\n", retval);
 	}
 
 	return retval;
@@ -389,7 +386,7 @@ static ssize_t vfd_write(struct file *file, const char __user *buf,
 		goto exit;
 	}
 
-	data_buf = memdup_user((void const __user *)buf, n_bytes);
+	data_buf = memdup_user(buf, n_bytes);
 	if (IS_ERR(data_buf)) {
 		retval = PTR_ERR(data_buf);
 		data_buf = NULL;
@@ -444,8 +441,7 @@ static ssize_t vfd_write(struct file *file, const char __user *buf,
 		retval = send_packet(context);
 		if (retval) {
 			dev_err(&context->dev->dev,
-				"%s: send packet failed for packet #%d\n",
-				__func__, i);
+				"send packet failed for packet #%d\n", i);
 			goto exit;
 		}
 	}
@@ -509,8 +505,7 @@ static int ir_open(void *data)
 
 	if (retval)
 		dev_err(&context->dev->dev,
-			"%s: usb_submit_urb failed for ir_open (%d)\n",
-			__func__, retval);
+			"usb_submit_urb failed for ir_open (%d)\n", retval);
 	else {
 		context->ir_isopen = 1;
 		dev_info(&context->dev->dev, "IR port opened\n");
diff --git a/drivers/staging/media/lirc/lirc_serial.c b/drivers/staging/media/lirc/lirc_serial.c
index 19628d0..dc79844 100644
--- a/drivers/staging/media/lirc/lirc_serial.c
+++ b/drivers/staging/media/lirc/lirc_serial.c
@@ -344,7 +344,7 @@ static int init_timing_params(unsigned int new_duty_cycle,
 	/* How many clocks in a microsecond?, avoiding long long divide */
 	work = loops_per_sec;
 	work *= 4295;  /* 4295 = 2^32 / 1e6 */
-	conv_us_to_clocks = (work >> 32);
+	conv_us_to_clocks = work >> 32;
 
 	/*
 	 * Carrier period in clocks, approach good up to 32GHz clock,
@@ -784,7 +784,7 @@ static int lirc_serial_probe(struct platform_device *dev)
 
 	result = devm_request_irq(&dev->dev, irq, lirc_irq_handler,
 			     (share_irq ? IRQF_SHARED : 0),
-			     LIRC_DRIVER_NAME, (void *)&hardware);
+			     LIRC_DRIVER_NAME, &hardware);
 	if (result < 0) {
 		if (result == -EBUSY)
 			dev_err(&dev->dev, "IRQ %d busy\n", irq);
@@ -838,7 +838,7 @@ static int lirc_serial_probe(struct platform_device *dev)
 				nhigh++;
 			msleep(40);
 		}
-		sense = (nlow >= nhigh ? 1 : 0);
+		sense = nlow >= nhigh ? 1 : 0;
 		dev_info(&dev->dev, "auto-detected active %s receiver\n",
 			 sense ? "low" : "high");
 	} else
diff --git a/drivers/staging/media/lirc/lirc_sir.c b/drivers/staging/media/lirc/lirc_sir.c
index 39f4733..29087f6 100644
--- a/drivers/staging/media/lirc/lirc_sir.c
+++ b/drivers/staging/media/lirc/lirc_sir.c
@@ -683,9 +683,7 @@ static int init_port(void)
 	}
 	pr_info("I/O port 0x%.4x, IRQ %d.\n", io, irq);
 
-	init_timer(&timerlist);
-	timerlist.function = sir_timeout;
-	timerlist.data = 0xabadcafe;
+	setup_timer(&timerlist, sir_timeout, 0);
 
 	return 0;
 }
diff --git a/drivers/staging/media/lirc/lirc_zilog.c b/drivers/staging/media/lirc/lirc_zilog.c
index e16627c..261e27d 100644
--- a/drivers/staging/media/lirc/lirc_zilog.c
+++ b/drivers/staging/media/lirc/lirc_zilog.c
@@ -1341,8 +1341,7 @@ static int close(struct inode *node, struct file *filep)
 	struct IR *ir = filep->private_data;
 
 	if (ir == NULL) {
-		dev_err(ir->l.dev,
-			"close: no private_data attached to the file!\n");
+		pr_err("ir: close: no private_data attached to the file!\n");
 		return -ENODEV;
 	}
 
diff --git a/drivers/staging/media/mn88472/mn88472.c b/drivers/staging/media/mn88472/mn88472.c
index 6eebe56..2a68582 100644
--- a/drivers/staging/media/mn88472/mn88472.c
+++ b/drivers/staging/media/mn88472/mn88472.c
@@ -276,7 +276,7 @@ static int mn88472_init(struct dvb_frontend *fe)
 			remaining -= (dev->i2c_wr_max - 1)) {
 		len = remaining;
 		if (len > (dev->i2c_wr_max - 1))
-			len = (dev->i2c_wr_max - 1);
+			len = dev->i2c_wr_max - 1;
 
 		ret = regmap_bulk_write(dev->regmap[0], 0xf6,
 				&fw->data[fw->size - remaining], len);
diff --git a/drivers/staging/media/mn88473/mn88473.c b/drivers/staging/media/mn88473/mn88473.c
index a333744..5baeb03 100644
--- a/drivers/staging/media/mn88473/mn88473.c
+++ b/drivers/staging/media/mn88473/mn88473.c
@@ -17,7 +17,7 @@
 #include "mn88473_priv.h"
 
 static int mn88473_get_tune_settings(struct dvb_frontend *fe,
-	struct dvb_frontend_tune_settings *s)
+				     struct dvb_frontend_tune_settings *s)
 {
 	s->min_delay_ms = 1000;
 	return 0;
@@ -33,10 +33,14 @@ static int mn88473_set_frontend(struct dvb_frontend *fe)
 	u8 delivery_system_val, if_val[3], bw_val[7];
 
 	dev_dbg(&client->dev,
-			"delivery_system=%u modulation=%u frequency=%u bandwidth_hz=%u symbol_rate=%u inversion=%d stream_id=%d\n",
-			c->delivery_system, c->modulation,
-			c->frequency, c->bandwidth_hz, c->symbol_rate,
-			c->inversion, c->stream_id);
+		"delivery_system=%u modulation=%u frequency=%u bandwidth_hz=%u symbol_rate=%u inversion=%d stream_id=%d\n",
+		c->delivery_system,
+		c->modulation,
+		c->frequency,
+		c->bandwidth_hz,
+		c->symbol_rate,
+		c->inversion,
+		c->stream_id);
 
 	if (!dev->warm) {
 		ret = -EAGAIN;
@@ -112,7 +116,7 @@ static int mn88473_set_frontend(struct dvb_frontend *fe)
 		break;
 	default:
 		dev_err(&client->dev, "IF frequency %d not supported\n",
-				if_frequency);
+			if_frequency);
 		ret = -EINVAL;
 		goto err;
 	}
@@ -229,7 +233,7 @@ static int mn88473_init(struct dvb_frontend *fe)
 	}
 
 	dev_info(&client->dev, "downloading firmware from file '%s'\n",
-			fw_file);
+		 fw_file);
 
 	ret = regmap_write(dev->regmap[0], 0xf5, 0x03);
 	if (ret)
@@ -239,13 +243,13 @@ static int mn88473_init(struct dvb_frontend *fe)
 			remaining -= (dev->i2c_wr_max - 1)) {
 		len = remaining;
 		if (len > (dev->i2c_wr_max - 1))
-			len = (dev->i2c_wr_max - 1);
+			len = dev->i2c_wr_max - 1;
 
 		ret = regmap_bulk_write(dev->regmap[0], 0xf6,
-				&fw->data[fw->size - remaining], len);
+					&fw->data[fw->size - remaining], len);
 		if (ret) {
 			dev_err(&client->dev, "firmware download failed=%d\n",
-					ret);
+				ret);
 			goto err;
 		}
 	}
@@ -325,7 +329,7 @@ static struct dvb_frontend_ops mn88473_ops = {
 };
 
 static int mn88473_probe(struct i2c_client *client,
-		const struct i2c_device_id *id)
+			 const struct i2c_device_id *id)
 {
 	struct mn88473_config *config = client->dev.platform_data;
 	struct mn88473_dev *dev;
diff --git a/drivers/staging/media/omap4iss/iss.c b/drivers/staging/media/omap4iss/iss.c
index 44b81a2..e0ad5e5 100644
--- a/drivers/staging/media/omap4iss/iss.c
+++ b/drivers/staging/media/omap4iss/iss.c
@@ -1160,8 +1160,8 @@ iss_register_subdev_group(struct iss_device *iss,
 		subdev = v4l2_i2c_new_subdev_board(&iss->v4l2_dev, adapter,
 				board_info->board_info, NULL);
 		if (subdev == NULL) {
-			dev_err(iss->dev, "%s: Unable to register subdev %s\n",
-				__func__, board_info->board_info->type);
+			dev_err(iss->dev, "Unable to register subdev %s\n",
+				board_info->board_info->type);
 			continue;
 		}
 
@@ -1185,16 +1185,16 @@ static int iss_register_entities(struct iss_device *iss)
 	iss->media_dev.link_notify = iss_pipeline_link_notify;
 	ret = media_device_register(&iss->media_dev);
 	if (ret < 0) {
-		dev_err(iss->dev, "%s: Media device registration failed (%d)\n",
-			__func__, ret);
+		dev_err(iss->dev, "Media device registration failed (%d)\n",
+			ret);
 		return ret;
 	}
 
 	iss->v4l2_dev.mdev = &iss->media_dev;
 	ret = v4l2_device_register(iss->dev, &iss->v4l2_dev);
 	if (ret < 0) {
-		dev_err(iss->dev, "%s: V4L2 device registration failed (%d)\n",
-			__func__, ret);
+		dev_err(iss->dev, "V4L2 device registration failed (%d)\n",
+			ret);
 		goto done;
 	}
 
@@ -1252,8 +1252,8 @@ static int iss_register_entities(struct iss_device *iss)
 			break;
 
 		default:
-			dev_err(iss->dev, "%s: invalid interface type %u\n",
-				__func__, subdevs->interface);
+			dev_err(iss->dev, "invalid interface type %u\n",
+				subdevs->interface);
 			ret = -EINVAL;
 			goto done;
 		}
diff --git a/drivers/staging/media/omap4iss/iss_video.c b/drivers/staging/media/omap4iss/iss_video.c
index 6955044..55938cc 100644
--- a/drivers/staging/media/omap4iss/iss_video.c
+++ b/drivers/staging/media/omap4iss/iss_video.c
@@ -1221,8 +1221,7 @@ int omap4iss_video_register(struct iss_video *video, struct v4l2_device *vdev)
 	ret = video_register_device(&video->video, VFL_TYPE_GRABBER, -1);
 	if (ret < 0)
 		dev_err(video->iss->dev,
-			"%s: could not register video device (%d)\n",
-			__func__, ret);
+			"could not register video device (%d)\n", ret);
 
 	return ret;
 }
diff --git a/drivers/staging/mt29f_spinand/mt29f_spinand.c b/drivers/staging/mt29f_spinand/mt29f_spinand.c
index 3b191fc..7285c64 100644
--- a/drivers/staging/mt29f_spinand/mt29f_spinand.c
+++ b/drivers/staging/mt29f_spinand/mt29f_spinand.c
@@ -770,7 +770,7 @@ static void spinand_cmdfunc(struct mtd_info *mtd, unsigned int command,
 		break;
 	case NAND_CMD_READID:
 		state->buf_ptr = 0;
-		spinand_read_id(info->spi, (u8 *)state->buf);
+		spinand_read_id(info->spi, state->buf);
 		break;
 	case NAND_CMD_PARAM:
 		state->buf_ptr = 0;
diff --git a/drivers/staging/netlogic/xlr_net.c b/drivers/staging/netlogic/xlr_net.c
index e8aae09..8ae0175 100644
--- a/drivers/staging/netlogic/xlr_net.c
+++ b/drivers/staging/netlogic/xlr_net.c
@@ -1012,7 +1012,7 @@ static int xlr_net_probe(struct platform_device *pdev)
 	 * Allocate our adapter data structure and attach it to the device.
 	 */
 	adapter = (struct xlr_adapter *)
-		devm_kzalloc(&pdev->dev, sizeof(adapter), GFP_KERNEL);
+		devm_kzalloc(&pdev->dev, sizeof(*adapter), GFP_KERNEL);
 	if (!adapter) {
 		err = -ENOMEM;
 		return err;
diff --git a/drivers/staging/nvec/Kconfig b/drivers/staging/nvec/Kconfig
index 9475e20..e3a89fb 100644
--- a/drivers/staging/nvec/Kconfig
+++ b/drivers/staging/nvec/Kconfig
@@ -6,6 +6,9 @@ config MFD_NVEC
 	    Say Y here to enable support for a nVidia compliant embedded
 	    controller.
 
+	    To compile this driver as a module, say M here: the module will be
+            called mfd-nvec
+
 config KEYBOARD_NVEC
 	tristate "Keyboard on nVidia compliant EC"
 	depends on MFD_NVEC && INPUT
@@ -13,6 +16,9 @@ config KEYBOARD_NVEC
 	  Say Y here to enable support for a keyboard connected to
 	  a nVidia compliant embedded controller.
 
+	  To compile this driver as a module, say M here: the module will be
+          called keyboard-nvec
+
 config SERIO_NVEC_PS2
 	tristate "PS2 on nVidia EC"
 	depends on MFD_NVEC && SERIO
@@ -20,6 +26,10 @@ config SERIO_NVEC_PS2
 	  Say Y here to enable support for a Touchpad / Mouse connected
 	  to a nVidia compliant embedded controller.
 
+	  To compile this driver as a module, say M here: the module will be
+          called serio-nvec-ps2
+
+
 config NVEC_POWER
 	tristate "NVEC charger and battery"
 	depends on MFD_NVEC && POWER_SUPPLY
@@ -27,9 +37,17 @@ config NVEC_POWER
 	  Say Y to enable support for battery and charger interface for
 	  nVidia compliant embedded controllers.
 
+	  To compile this driver as a module, say M here: the module will be
+          called nvec-power
+
+
 config NVEC_PAZ00
 	tristate "Support for OEM specific functions on Compal PAZ00 based devices"
 	depends on MFD_NVEC && LEDS_CLASS
 	help
 	  Say Y to enable control of the yellow side leds on Compal PAZ00 based
 	  devices, e.g. Toshbia AC100 and Dynabooks AZ netbooks.
+
+	  To compile this driver as a module, say M here: the module will be
+          called nvec-paz00
+
diff --git a/drivers/staging/nvec/nvec.c b/drivers/staging/nvec/nvec.c
index 5868ebb..1bdc8d0 100644
--- a/drivers/staging/nvec/nvec.c
+++ b/drivers/staging/nvec/nvec.c
@@ -803,7 +803,7 @@ static int tegra_nvec_probe(struct platform_device *pdev)
 	}
 
 	nvec = devm_kzalloc(&pdev->dev, sizeof(struct nvec_chip), GFP_KERNEL);
-	if (nvec == NULL)
+	if (!nvec)
 		return -ENOMEM;
 
 	platform_set_drvdata(pdev, nvec);
diff --git a/drivers/staging/nvec/nvec_paz00.c b/drivers/staging/nvec/nvec_paz00.c
index f0cea0e..68146bf 100644
--- a/drivers/staging/nvec/nvec_paz00.c
+++ b/drivers/staging/nvec/nvec_paz00.c
@@ -51,7 +51,7 @@ static int nvec_paz00_probe(struct platform_device *pdev)
 	int ret = 0;
 
 	led = devm_kzalloc(&pdev->dev, sizeof(*led), GFP_KERNEL);
-	if (led == NULL)
+	if (!led)
 		return -ENOMEM;
 
 	led->cdev.max_brightness = NVEC_LED_MAX;
diff --git a/drivers/staging/nvec/nvec_power.c b/drivers/staging/nvec/nvec_power.c
index 6a1459d..04a7402 100644
--- a/drivers/staging/nvec/nvec_power.c
+++ b/drivers/staging/nvec/nvec_power.c
@@ -82,8 +82,8 @@ struct bat_response {
 	};
 };
 
-static struct power_supply nvec_bat_psy;
-static struct power_supply nvec_psy;
+static struct power_supply *nvec_bat_psy;
+static struct power_supply *nvec_psy;
 
 static int nvec_power_notifier(struct notifier_block *nb,
 			       unsigned long event_type, void *data)
@@ -98,7 +98,7 @@ static int nvec_power_notifier(struct notifier_block *nb,
 	if (res->sub_type == 0) {
 		if (power->on != res->plu) {
 			power->on = res->plu;
-			power_supply_changed(&nvec_psy);
+			power_supply_changed(nvec_psy);
 		}
 		return NOTIFY_STOP;
 	}
@@ -167,7 +167,7 @@ static int nvec_power_bat_notifier(struct notifier_block *nb,
 		}
 		power->bat_cap = res->plc[1];
 		if (status_changed)
-			power_supply_changed(&nvec_bat_psy);
+			power_supply_changed(nvec_bat_psy);
 		break;
 	case VOLTAGE:
 		power->bat_voltage_now = res->plu * 1000;
@@ -225,7 +225,7 @@ static int nvec_power_get_property(struct power_supply *psy,
 				   enum power_supply_property psp,
 				   union power_supply_propval *val)
 {
-	struct nvec_power *power = dev_get_drvdata(psy->dev->parent);
+	struct nvec_power *power = dev_get_drvdata(psy->dev.parent);
 
 	switch (psp) {
 	case POWER_SUPPLY_PROP_ONLINE:
@@ -241,7 +241,7 @@ static int nvec_battery_get_property(struct power_supply *psy,
 				     enum power_supply_property psp,
 				     union power_supply_propval *val)
 {
-	struct nvec_power *power = dev_get_drvdata(psy->dev->parent);
+	struct nvec_power *power = dev_get_drvdata(psy->dev.parent);
 
 	switch (psp) {
 	case POWER_SUPPLY_PROP_STATUS:
@@ -323,7 +323,7 @@ static char *nvec_power_supplied_to[] = {
 	"battery",
 };
 
-static struct power_supply nvec_bat_psy = {
+static const struct power_supply_desc nvec_bat_psy_desc = {
 	.name = "battery",
 	.type = POWER_SUPPLY_TYPE_BATTERY,
 	.properties = nvec_battery_props,
@@ -331,11 +331,9 @@ static struct power_supply nvec_bat_psy = {
 	.get_property = nvec_battery_get_property,
 };
 
-static struct power_supply nvec_psy = {
+static const struct power_supply_desc nvec_psy_desc = {
 	.name = "ac",
 	.type = POWER_SUPPLY_TYPE_MAINS,
-	.supplied_to = nvec_power_supplied_to,
-	.num_supplicants = ARRAY_SIZE(nvec_power_supplied_to),
 	.properties = nvec_power_props,
 	.num_properties = ARRAY_SIZE(nvec_power_props),
 	.get_property = nvec_power_get_property,
@@ -373,12 +371,14 @@ static void nvec_power_poll(struct work_struct *work)
 
 static int nvec_power_probe(struct platform_device *pdev)
 {
-	struct power_supply *psy;
+	struct power_supply **psy;
+	const struct power_supply_desc *psy_desc;
 	struct nvec_power *power;
 	struct nvec_chip *nvec = dev_get_drvdata(pdev->dev.parent);
+	struct power_supply_config psy_cfg = {};
 
 	power = devm_kzalloc(&pdev->dev, sizeof(struct nvec_power), GFP_NOWAIT);
-	if (power == NULL)
+	if (!power)
 		return -ENOMEM;
 
 	dev_set_drvdata(&pdev->dev, power);
@@ -387,6 +387,9 @@ static int nvec_power_probe(struct platform_device *pdev)
 	switch (pdev->id) {
 	case AC:
 		psy = &nvec_psy;
+		psy_desc = &nvec_psy_desc;
+		psy_cfg.supplied_to = nvec_power_supplied_to;
+		psy_cfg.num_supplicants = ARRAY_SIZE(nvec_power_supplied_to);
 
 		power->notifier.notifier_call = nvec_power_notifier;
 
@@ -395,6 +398,7 @@ static int nvec_power_probe(struct platform_device *pdev)
 		break;
 	case BAT:
 		psy = &nvec_bat_psy;
+		psy_desc = &nvec_bat_psy_desc;
 
 		power->notifier.notifier_call = nvec_power_bat_notifier;
 		break;
@@ -407,7 +411,9 @@ static int nvec_power_probe(struct platform_device *pdev)
 	if (pdev->id == BAT)
 		get_bat_mfg_data(power);
 
-	return power_supply_register(&pdev->dev, psy);
+	*psy = power_supply_register(&pdev->dev, psy_desc, &psy_cfg);
+
+	return PTR_ERR_OR_ZERO(*psy);
 }
 
 static int nvec_power_remove(struct platform_device *pdev)
@@ -418,10 +424,10 @@ static int nvec_power_remove(struct platform_device *pdev)
 	nvec_unregister_notifier(power->nvec, &power->notifier);
 	switch (pdev->id) {
 	case AC:
-		power_supply_unregister(&nvec_psy);
+		power_supply_unregister(nvec_psy);
 		break;
 	case BAT:
-		power_supply_unregister(&nvec_bat_psy);
+		power_supply_unregister(nvec_bat_psy);
 	}
 
 	return 0;
diff --git a/drivers/staging/nvec/nvec_ps2.c b/drivers/staging/nvec/nvec_ps2.c
index 4fd63c2..6ebbc82 100644
--- a/drivers/staging/nvec/nvec_ps2.c
+++ b/drivers/staging/nvec/nvec_ps2.c
@@ -109,7 +109,7 @@ static int nvec_mouse_probe(struct platform_device *pdev)
 	char mouse_reset[] = { NVEC_PS2, SEND_COMMAND, PSMOUSE_RST, 3 };
 
 	ser_dev = devm_kzalloc(&pdev->dev, sizeof(struct serio), GFP_KERNEL);
-	if (ser_dev == NULL)
+	if (!ser_dev)
 		return -ENOMEM;
 
 	ser_dev->id.type = SERIO_PS_PSTHRU;
diff --git a/drivers/staging/octeon-usb/octeon-hcd.c b/drivers/staging/octeon-usb/octeon-hcd.c
index 1daeb31..9e5476e 100644
--- a/drivers/staging/octeon-usb/octeon-hcd.c
+++ b/drivers/staging/octeon-usb/octeon-hcd.c
@@ -214,15 +214,14 @@ enum cvmx_usb_initialize_flags {
 /**
  * enum cvmx_usb_pipe_flags - internal flags for a pipe.
  *
- * @__CVMX_USB_PIPE_FLAGS_SCHEDULED: Used internally to determine if a pipe is
- *				     actively using hardware. Do not use.
- * @__CVMX_USB_PIPE_FLAGS_NEED_PING: Used internally to determine if a high
- *				     speed pipe is in the ping state. Do not
- *				     use.
+ * @CVMX_USB_PIPE_FLAGS_SCHEDULED: Used internally to determine if a pipe is
+ *				   actively using hardware.
+ * @CVMX_USB_PIPE_FLAGS_NEED_PING: Used internally to determine if a high speed
+ *				   pipe is in the ping state.
  */
 enum cvmx_usb_pipe_flags {
-	__CVMX_USB_PIPE_FLAGS_SCHEDULED	= 1 << 17,
-	__CVMX_USB_PIPE_FLAGS_NEED_PING	= 1 << 18,
+	CVMX_USB_PIPE_FLAGS_SCHEDULED	= 1 << 17,
+	CVMX_USB_PIPE_FLAGS_NEED_PING	= 1 << 18,
 };
 
 /* Maximum number of times to retry failed transactions */
@@ -231,15 +230,6 @@ enum cvmx_usb_pipe_flags {
 /* Maximum number of hardware channels supported by the USB block */
 #define MAX_CHANNELS		8
 
-/* The highest valid USB device address */
-#define MAX_USB_ADDRESS		127
-
-/* The highest valid USB endpoint number */
-#define MAX_USB_ENDPOINT	15
-
-/* The highest valid port number on a hub */
-#define MAX_USB_HUB_PORT	15
-
 /*
  * The low level hardware can transfer a maximum of this number of bytes in each
  * transfer. The field is 19 bits wide
@@ -403,16 +393,18 @@ struct octeon_hcd {
 	struct cvmx_usb_state usb;
 };
 
-/* This macro spins on a field waiting for it to reach a value */
-#define CVMX_WAIT_FOR_FIELD32(address, type, field, op, value, timeout_usec)\
+/* This macro spins on a register waiting for it to reach a condition. */
+#define CVMX_WAIT_FOR_FIELD32(address, _union, cond, timeout_usec)	    \
 	({int result;							    \
 	do {								    \
 		uint64_t done = cvmx_get_cycle() + (uint64_t)timeout_usec * \
 			octeon_get_clock_rate() / 1000000;		    \
-		type c;							    \
+		union _union c;						    \
+									    \
 		while (1) {						    \
-			c.u32 = __cvmx_usb_read_csr32(usb, address);	    \
-			if (c.s.field op (value)) {			    \
+			c.u32 = cvmx_usb_read_csr32(usb, address);	    \
+									    \
+			if (cond) {					    \
 				result = 0;				    \
 				break;					    \
 			} else if (cvmx_get_cycle() > done) {		    \
@@ -428,12 +420,13 @@ struct octeon_hcd {
  * This macro logically sets a single field in a CSR. It does the sequence
  * read, modify, and write
  */
-#define USB_SET_FIELD32(address, type, field, value)		\
+#define USB_SET_FIELD32(address, _union, field, value)		\
 	do {							\
-		type c;						\
-		c.u32 = __cvmx_usb_read_csr32(usb, address);	\
+		union _union c;					\
+								\
+		c.u32 = cvmx_usb_read_csr32(usb, address);	\
 		c.s.field = value;				\
-		__cvmx_usb_write_csr32(usb, address, c.u32);	\
+		cvmx_usb_write_csr32(usb, address, c.u32);	\
 	} while (0)
 
 /* Returns the IO address to push/pop stuff data from the FIFOs */
@@ -442,7 +435,6 @@ struct octeon_hcd {
 
 /**
  * struct octeon_temp_buffer - a bounce buffer for USB transfers
- * @temp_buffer: the newly allocated temporary buffer (including meta-data)
  * @orig_buffer: the original buffer passed by the USB stack
  * @data:	 the newly allocated temporary buffer (excluding meta-data)
  *
@@ -451,7 +443,6 @@ struct octeon_hcd {
  * represents it.
  */
 struct octeon_temp_buffer {
-	void *temp_buffer;
 	void *orig_buffer;
 	u8 data[0];
 };
@@ -489,7 +480,6 @@ static int octeon_alloc_temp_buffer(struct urb *urb, gfp_t mem_flags)
 	if (!temp)
 		return -ENOMEM;
 
-	temp->temp_buffer = temp;
 	temp->orig_buffer = urb->transfer_buffer;
 	if (usb_urb_dir_out(urb))
 		memcpy(temp->data, urb->transfer_buffer,
@@ -520,7 +510,7 @@ static void octeon_free_temp_buffer(struct urb *urb)
 		       urb->actual_length);
 	urb->transfer_buffer = temp->orig_buffer;
 	urb->transfer_flags &= ~URB_ALIGNED_TEMP_BUFFER;
-	kfree(temp->temp_buffer);
+	kfree(temp);
 }
 
 /**
@@ -566,8 +556,8 @@ static void octeon_unmap_urb_for_dma(struct usb_hcd *hcd, struct urb *urb)
  *
  * Returns: Result of the read
  */
-static inline uint32_t __cvmx_usb_read_csr32(struct cvmx_usb_state *usb,
-					     uint64_t address)
+static inline uint32_t cvmx_usb_read_csr32(struct cvmx_usb_state *usb,
+					   uint64_t address)
 {
 	uint32_t result = cvmx_read64_uint32(address ^ 4);
 	return result;
@@ -583,45 +573,13 @@ static inline uint32_t __cvmx_usb_read_csr32(struct cvmx_usb_state *usb,
  * @address: 64bit address to write
  * @value:   Value to write
  */
-static inline void __cvmx_usb_write_csr32(struct cvmx_usb_state *usb,
-					  uint64_t address, uint32_t value)
+static inline void cvmx_usb_write_csr32(struct cvmx_usb_state *usb,
+					uint64_t address, uint32_t value)
 {
 	cvmx_write64_uint32(address ^ 4, value);
 	cvmx_read64_uint64(CVMX_USBNX_DMA0_INB_CHN0(usb->index));
 }
 
-
-/**
- * Read a USB 64bit CSR. It logs the value in a readable format if
- * debugging is on.
- *
- * @usb:     USB block this access is for
- * @address: 64bit address to read
- *
- * Returns: Result of the read
- */
-static inline uint64_t __cvmx_usb_read_csr64(struct cvmx_usb_state *usb,
-					     uint64_t address)
-{
-	uint64_t result = cvmx_read64_uint64(address);
-	return result;
-}
-
-
-/**
- * Write a USB 64bit CSR. It logs the value in a readable format
- * if debugging is on.
- *
- * @usb:     USB block this access is for
- * @address: 64bit address to write
- * @value:   Value to write
- */
-static inline void __cvmx_usb_write_csr64(struct cvmx_usb_state *usb,
-					  uint64_t address, uint64_t value)
-{
-	cvmx_write64_uint64(address, value);
-}
-
 /**
  * Return non zero if this pipe connects to a non HIGH speed
  * device through a high speed hub.
@@ -631,8 +589,8 @@ static inline void __cvmx_usb_write_csr64(struct cvmx_usb_state *usb,
  *
  * Returns: Non zero if we need to do split transactions
  */
-static inline int __cvmx_usb_pipe_needs_split(struct cvmx_usb_state *usb,
-					      struct cvmx_usb_pipe *pipe)
+static inline int cvmx_usb_pipe_needs_split(struct cvmx_usb_state *usb,
+					    struct cvmx_usb_pipe *pipe)
 {
 	return pipe->device_speed != CVMX_USB_SPEED_HIGH &&
 	       usb->usbcx_hprt.s.prtspd == CVMX_USB_SPEED_HIGH;
@@ -646,48 +604,119 @@ static inline int __cvmx_usb_pipe_needs_split(struct cvmx_usb_state *usb,
  *
  * Returns: PID for pipe
  */
-static inline int __cvmx_usb_get_data_pid(struct cvmx_usb_pipe *pipe)
+static inline int cvmx_usb_get_data_pid(struct cvmx_usb_pipe *pipe)
 {
 	if (pipe->pid_toggle)
 		return 2; /* Data1 */
 	return 0; /* Data0 */
 }
 
+static void cvmx_fifo_setup(struct cvmx_usb_state *usb)
+{
+	union cvmx_usbcx_ghwcfg3 usbcx_ghwcfg3;
+	union cvmx_usbcx_gnptxfsiz npsiz;
+	union cvmx_usbcx_hptxfsiz psiz;
+
+	usbcx_ghwcfg3.u32 = cvmx_usb_read_csr32(usb,
+						CVMX_USBCX_GHWCFG3(usb->index));
+
+	/*
+	 * Program the USBC_GRXFSIZ register to select the size of the receive
+	 * FIFO (25%).
+	 */
+	USB_SET_FIELD32(CVMX_USBCX_GRXFSIZ(usb->index), cvmx_usbcx_grxfsiz,
+			rxfdep, usbcx_ghwcfg3.s.dfifodepth / 4);
+
+	/*
+	 * Program the USBC_GNPTXFSIZ register to select the size and the start
+	 * address of the non-periodic transmit FIFO for nonperiodic
+	 * transactions (50%).
+	 */
+	npsiz.u32 = cvmx_usb_read_csr32(usb, CVMX_USBCX_GNPTXFSIZ(usb->index));
+	npsiz.s.nptxfdep = usbcx_ghwcfg3.s.dfifodepth / 2;
+	npsiz.s.nptxfstaddr = usbcx_ghwcfg3.s.dfifodepth / 4;
+	cvmx_usb_write_csr32(usb, CVMX_USBCX_GNPTXFSIZ(usb->index), npsiz.u32);
+
+	/*
+	 * Program the USBC_HPTXFSIZ register to select the size and start
+	 * address of the periodic transmit FIFO for periodic transactions
+	 * (25%).
+	 */
+	psiz.u32 = cvmx_usb_read_csr32(usb, CVMX_USBCX_HPTXFSIZ(usb->index));
+	psiz.s.ptxfsize = usbcx_ghwcfg3.s.dfifodepth / 4;
+	psiz.s.ptxfstaddr = 3 * usbcx_ghwcfg3.s.dfifodepth / 4;
+	cvmx_usb_write_csr32(usb, CVMX_USBCX_HPTXFSIZ(usb->index), psiz.u32);
+
+	/* Flush all FIFOs */
+	USB_SET_FIELD32(CVMX_USBCX_GRSTCTL(usb->index),
+			cvmx_usbcx_grstctl, txfnum, 0x10);
+	USB_SET_FIELD32(CVMX_USBCX_GRSTCTL(usb->index),
+			cvmx_usbcx_grstctl, txfflsh, 1);
+	CVMX_WAIT_FOR_FIELD32(CVMX_USBCX_GRSTCTL(usb->index),
+			      cvmx_usbcx_grstctl, c.s.txfflsh == 0, 100);
+	USB_SET_FIELD32(CVMX_USBCX_GRSTCTL(usb->index),
+			cvmx_usbcx_grstctl, rxfflsh, 1);
+	CVMX_WAIT_FOR_FIELD32(CVMX_USBCX_GRSTCTL(usb->index),
+			      cvmx_usbcx_grstctl, c.s.rxfflsh == 0, 100);
+}
+
+/**
+ * Shutdown a USB port after a call to cvmx_usb_initialize().
+ * The port should be disabled with all pipes closed when this
+ * function is called.
+ *
+ * @usb: USB device state populated by cvmx_usb_initialize().
+ *
+ * Returns: 0 or a negative error code.
+ */
+static int cvmx_usb_shutdown(struct cvmx_usb_state *usb)
+{
+	union cvmx_usbnx_clk_ctl usbn_clk_ctl;
+
+	/* Make sure all pipes are closed */
+	if (!list_empty(&usb->idle_pipes) ||
+	    !list_empty(&usb->active_pipes[CVMX_USB_TRANSFER_ISOCHRONOUS]) ||
+	    !list_empty(&usb->active_pipes[CVMX_USB_TRANSFER_INTERRUPT]) ||
+	    !list_empty(&usb->active_pipes[CVMX_USB_TRANSFER_CONTROL]) ||
+	    !list_empty(&usb->active_pipes[CVMX_USB_TRANSFER_BULK]))
+		return -EBUSY;
+
+	/* Disable the clocks and put them in power on reset */
+	usbn_clk_ctl.u64 = cvmx_read64_uint64(CVMX_USBNX_CLK_CTL(usb->index));
+	usbn_clk_ctl.s.enable = 1;
+	usbn_clk_ctl.s.por = 1;
+	usbn_clk_ctl.s.hclk_rst = 1;
+	usbn_clk_ctl.s.prst = 0;
+	usbn_clk_ctl.s.hrst = 0;
+	cvmx_write64_uint64(CVMX_USBNX_CLK_CTL(usb->index), usbn_clk_ctl.u64);
+	return 0;
+}
+
 /**
  * Initialize a USB port for use. This must be called before any
  * other access to the Octeon USB port is made. The port starts
  * off in the disabled state.
  *
- * @usb:	 Pointer to an empty struct cvmx_usb_state
- *		 that will be populated by the initialize call.
- *		 This structure is then passed to all other USB
- *		 functions.
- * @usb_port_number:
- *		 Which Octeon USB port to initialize.
+ * @dev:	 Pointer to struct device for logging purposes.
+ * @usb:	 Pointer to struct cvmx_usb_state.
  *
  * Returns: 0 or a negative error code.
  */
-static int cvmx_usb_initialize(struct cvmx_usb_state *usb,
-			       int usb_port_number,
-			       enum cvmx_usb_initialize_flags flags)
+static int cvmx_usb_initialize(struct device *dev,
+			       struct cvmx_usb_state *usb)
 {
+	int channel;
+	int divisor;
+	int retries = 0;
+	union cvmx_usbcx_hcfg usbcx_hcfg;
 	union cvmx_usbnx_clk_ctl usbn_clk_ctl;
+	union cvmx_usbcx_gintsts usbc_gintsts;
+	union cvmx_usbcx_gahbcfg usbcx_gahbcfg;
+	union cvmx_usbcx_gintmsk usbcx_gintmsk;
+	union cvmx_usbcx_gusbcfg usbcx_gusbcfg;
 	union cvmx_usbnx_usbp_ctl_status usbn_usbp_ctl_status;
-	int i;
-
-	/* At first allow 0-1 for the usb port number */
-	if ((usb_port_number < 0) || (usb_port_number > 1))
-		return -EINVAL;
-
-	memset(usb, 0, sizeof(*usb));
-	usb->init_flags = flags;
-
-	/* Initialize the USB state structure */
-	usb->index = usb_port_number;
-	INIT_LIST_HEAD(&usb->idle_pipes);
-	for (i = 0; i < ARRAY_SIZE(usb->active_pipes); i++)
-		INIT_LIST_HEAD(&usb->active_pipes[i]);
 
+retry:
 	/*
 	 * Power On Reset and PHY Initialization
 	 *
@@ -696,8 +725,7 @@ static int cvmx_usb_initialize(struct cvmx_usb_state *usb,
 	 * 2a. Write USBN0/1_CLK_CTL[POR] = 1 and
 	 *     USBN0/1_CLK_CTL[HRST,PRST,HCLK_RST] = 0
 	 */
-	usbn_clk_ctl.u64 =
-		__cvmx_usb_read_csr64(usb, CVMX_USBNX_CLK_CTL(usb->index));
+	usbn_clk_ctl.u64 = cvmx_read64_uint64(CVMX_USBNX_CLK_CTL(usb->index));
 	usbn_clk_ctl.s.por = 1;
 	usbn_clk_ctl.s.hrst = 0;
 	usbn_clk_ctl.s.prst = 0;
@@ -722,7 +750,8 @@ static int cvmx_usb_initialize(struct cvmx_usb_state *usb,
 			/* From CN52XX manual */
 			usbn_clk_ctl.s.p_rtype = 1;
 
-		switch (flags & CVMX_USB_INITIALIZE_FLAGS_CLOCK_MHZ_MASK) {
+		switch (usb->init_flags &
+			CVMX_USB_INITIALIZE_FLAGS_CLOCK_MHZ_MASK) {
 		case CVMX_USB_INITIALIZE_FLAGS_CLOCK_12MHZ:
 			usbn_clk_ctl.s.p_c_sel = 0;
 			break;
@@ -752,20 +781,17 @@ static int cvmx_usb_initialize(struct cvmx_usb_state *usb,
 	 *     setting USBN0/1_CLK_CTL[ENABLE] = 1. Divide the core clock down
 	 *     such that USB is as close as possible to 125Mhz
 	 */
-	{
-		int divisor = DIV_ROUND_UP(octeon_get_clock_rate(), 125000000);
-		/* Lower than 4 doesn't seem to work properly */
-		if (divisor < 4)
-			divisor = 4;
-		usbn_clk_ctl.s.divide = divisor;
-		usbn_clk_ctl.s.divide2 = 0;
-	}
-	__cvmx_usb_write_csr64(usb, CVMX_USBNX_CLK_CTL(usb->index),
-			       usbn_clk_ctl.u64);
+	divisor = DIV_ROUND_UP(octeon_get_clock_rate(), 125000000);
+	/* Lower than 4 doesn't seem to work properly */
+	if (divisor < 4)
+		divisor = 4;
+	usbn_clk_ctl.s.divide = divisor;
+	usbn_clk_ctl.s.divide2 = 0;
+	cvmx_write64_uint64(CVMX_USBNX_CLK_CTL(usb->index), usbn_clk_ctl.u64);
+
 	/* 2d. Write USBN0/1_CLK_CTL[HCLK_RST] = 1 */
 	usbn_clk_ctl.s.hclk_rst = 1;
-	__cvmx_usb_write_csr64(usb, CVMX_USBNX_CLK_CTL(usb->index),
-			       usbn_clk_ctl.u64);
+	cvmx_write64_uint64(CVMX_USBNX_CLK_CTL(usb->index), usbn_clk_ctl.u64);
 	/* 2e.  Wait 64 core-clock cycles for HCLK to stabilize */
 	cvmx_wait(64);
 	/*
@@ -774,8 +800,7 @@ static int cvmx_usb_initialize(struct cvmx_usb_state *usb,
 	 *    USBN_CLK_CTL[POR] = 0
 	 */
 	usbn_clk_ctl.s.por = 0;
-	__cvmx_usb_write_csr64(usb, CVMX_USBNX_CLK_CTL(usb->index),
-			       usbn_clk_ctl.u64);
+	cvmx_write64_uint64(CVMX_USBNX_CLK_CTL(usb->index), usbn_clk_ctl.u64);
 	/* 4. Wait 1 ms for PHY clock to start */
 	mdelay(1);
 	/*
@@ -783,11 +808,11 @@ static int cvmx_usb_initialize(struct cvmx_usb_state *usb,
 	 *    USBP control and status register:
 	 *    USBN_USBP_CTL_STATUS[ATE_RESET] = 1
 	 */
-	usbn_usbp_ctl_status.u64 = __cvmx_usb_read_csr64(usb,
-			CVMX_USBNX_USBP_CTL_STATUS(usb->index));
+	usbn_usbp_ctl_status.u64 =
+		cvmx_read64_uint64(CVMX_USBNX_USBP_CTL_STATUS(usb->index));
 	usbn_usbp_ctl_status.s.ate_reset = 1;
-	__cvmx_usb_write_csr64(usb, CVMX_USBNX_USBP_CTL_STATUS(usb->index),
-			       usbn_usbp_ctl_status.u64);
+	cvmx_write64_uint64(CVMX_USBNX_USBP_CTL_STATUS(usb->index),
+			    usbn_usbp_ctl_status.u64);
 	/* 6. Wait 10 cycles */
 	cvmx_wait(10);
 	/*
@@ -795,23 +820,22 @@ static int cvmx_usb_initialize(struct cvmx_usb_state *usb,
 	 *    USBN_USBP_CTL_STATUS[ATE_RESET] = 0
 	 */
 	usbn_usbp_ctl_status.s.ate_reset = 0;
-	__cvmx_usb_write_csr64(usb, CVMX_USBNX_USBP_CTL_STATUS(usb->index),
-			       usbn_usbp_ctl_status.u64);
+	cvmx_write64_uint64(CVMX_USBNX_USBP_CTL_STATUS(usb->index),
+			    usbn_usbp_ctl_status.u64);
 	/*
 	 * 8. Program the PHY reset field in the USBN clock-control register:
 	 *    USBN_CLK_CTL[PRST] = 1
 	 */
 	usbn_clk_ctl.s.prst = 1;
-	__cvmx_usb_write_csr64(usb, CVMX_USBNX_CLK_CTL(usb->index),
-			       usbn_clk_ctl.u64);
+	cvmx_write64_uint64(CVMX_USBNX_CLK_CTL(usb->index), usbn_clk_ctl.u64);
 	/*
 	 * 9. Program the USBP control and status register to select host or
 	 *    device mode. USBN_USBP_CTL_STATUS[HST_MODE] = 0 for host, = 1 for
 	 *    device
 	 */
 	usbn_usbp_ctl_status.s.hst_mode = 0;
-	__cvmx_usb_write_csr64(usb, CVMX_USBNX_USBP_CTL_STATUS(usb->index),
-			       usbn_usbp_ctl_status.u64);
+	cvmx_write64_uint64(CVMX_USBNX_USBP_CTL_STATUS(usb->index),
+			    usbn_usbp_ctl_status.u64);
 	/* 10. Wait 1 us */
 	udelay(1);
 	/*
@@ -819,12 +843,10 @@ static int cvmx_usb_initialize(struct cvmx_usb_state *usb,
 	 *     USBN_CLK_CTL[HRST] = 1
 	 */
 	usbn_clk_ctl.s.hrst = 1;
-	__cvmx_usb_write_csr64(usb, CVMX_USBNX_CLK_CTL(usb->index),
-			       usbn_clk_ctl.u64);
+	cvmx_write64_uint64(CVMX_USBNX_CLK_CTL(usb->index), usbn_clk_ctl.u64);
 	/* 12. Proceed to USB core initialization */
 	usbn_clk_ctl.s.enable = 1;
-	__cvmx_usb_write_csr64(usb, CVMX_USBNX_CLK_CTL(usb->index),
-			       usbn_clk_ctl.u64);
+	cvmx_write64_uint64(CVMX_USBNX_CLK_CTL(usb->index), usbn_clk_ctl.u64);
 	udelay(1);
 
 	/*
@@ -845,29 +867,16 @@ static int cvmx_usb_initialize(struct cvmx_usb_state *usb,
 	 *    USBC_GAHBCFG[PTXFEMPLVL]
 	 *    Global interrupt mask, USBC_GAHBCFG[GLBLINTRMSK] = 1
 	 */
-	{
-		union cvmx_usbcx_gahbcfg usbcx_gahbcfg;
-		/* Due to an errata, CN31XX doesn't support DMA */
-		if (OCTEON_IS_MODEL(OCTEON_CN31XX))
-			usb->init_flags |= CVMX_USB_INITIALIZE_FLAGS_NO_DMA;
-		usbcx_gahbcfg.u32 = 0;
-		usbcx_gahbcfg.s.dmaen = !(usb->init_flags &
-					  CVMX_USB_INITIALIZE_FLAGS_NO_DMA);
-		if (usb->init_flags & CVMX_USB_INITIALIZE_FLAGS_NO_DMA)
-			/* Only use one channel with non DMA */
-			usb->idle_hardware_channels = 0x1;
-		else if (OCTEON_IS_MODEL(OCTEON_CN5XXX))
-			/* CN5XXX have an errata with channel 3 */
-			usb->idle_hardware_channels = 0xf7;
-		else
-			usb->idle_hardware_channels = 0xff;
-		usbcx_gahbcfg.s.hbstlen = 0;
-		usbcx_gahbcfg.s.nptxfemplvl = 1;
-		usbcx_gahbcfg.s.ptxfemplvl = 1;
-		usbcx_gahbcfg.s.glblintrmsk = 1;
-		__cvmx_usb_write_csr32(usb, CVMX_USBCX_GAHBCFG(usb->index),
-				       usbcx_gahbcfg.u32);
-	}
+	usbcx_gahbcfg.u32 = 0;
+	usbcx_gahbcfg.s.dmaen = !(usb->init_flags &
+				  CVMX_USB_INITIALIZE_FLAGS_NO_DMA);
+	usbcx_gahbcfg.s.hbstlen = 0;
+	usbcx_gahbcfg.s.nptxfemplvl = 1;
+	usbcx_gahbcfg.s.ptxfemplvl = 1;
+	usbcx_gahbcfg.s.glblintrmsk = 1;
+	cvmx_usb_write_csr32(usb, CVMX_USBCX_GAHBCFG(usb->index),
+			     usbcx_gahbcfg.u32);
+
 	/*
 	 * 3. Program the following fields in USBC_GUSBCFG register.
 	 *    HS/FS timeout calibration, USBC_GUSBCFG[TOUTCAL] = 0
@@ -875,154 +884,98 @@ static int cvmx_usb_initialize(struct cvmx_usb_state *usb,
 	 *    USB turnaround time, USBC_GUSBCFG[USBTRDTIM] = 0x5
 	 *    PHY low-power clock select, USBC_GUSBCFG[PHYLPWRCLKSEL] = 0
 	 */
-	{
-		union cvmx_usbcx_gusbcfg usbcx_gusbcfg;
-
-		usbcx_gusbcfg.u32 = __cvmx_usb_read_csr32(usb,
-				CVMX_USBCX_GUSBCFG(usb->index));
-		usbcx_gusbcfg.s.toutcal = 0;
-		usbcx_gusbcfg.s.ddrsel = 0;
-		usbcx_gusbcfg.s.usbtrdtim = 0x5;
-		usbcx_gusbcfg.s.phylpwrclksel = 0;
-		__cvmx_usb_write_csr32(usb, CVMX_USBCX_GUSBCFG(usb->index),
-				       usbcx_gusbcfg.u32);
-	}
+	usbcx_gusbcfg.u32 = cvmx_usb_read_csr32(usb,
+						CVMX_USBCX_GUSBCFG(usb->index));
+	usbcx_gusbcfg.s.toutcal = 0;
+	usbcx_gusbcfg.s.ddrsel = 0;
+	usbcx_gusbcfg.s.usbtrdtim = 0x5;
+	usbcx_gusbcfg.s.phylpwrclksel = 0;
+	cvmx_usb_write_csr32(usb, CVMX_USBCX_GUSBCFG(usb->index),
+			     usbcx_gusbcfg.u32);
+
 	/*
 	 * 4. The software must unmask the following bits in the USBC_GINTMSK
 	 *    register.
 	 *    OTG interrupt mask, USBC_GINTMSK[OTGINTMSK] = 1
 	 *    Mode mismatch interrupt mask, USBC_GINTMSK[MODEMISMSK] = 1
 	 */
-	{
-		union cvmx_usbcx_gintmsk usbcx_gintmsk;
-		int channel;
-
-		usbcx_gintmsk.u32 = __cvmx_usb_read_csr32(usb,
-				CVMX_USBCX_GINTMSK(usb->index));
-		usbcx_gintmsk.s.otgintmsk = 1;
-		usbcx_gintmsk.s.modemismsk = 1;
-		usbcx_gintmsk.s.hchintmsk = 1;
-		usbcx_gintmsk.s.sofmsk = 0;
-		/* We need RX FIFO interrupts if we don't have DMA */
-		if (usb->init_flags & CVMX_USB_INITIALIZE_FLAGS_NO_DMA)
-			usbcx_gintmsk.s.rxflvlmsk = 1;
-		__cvmx_usb_write_csr32(usb, CVMX_USBCX_GINTMSK(usb->index),
-				       usbcx_gintmsk.u32);
-
-		/*
-		 * Disable all channel interrupts. We'll enable them per channel
-		 * later.
-		 */
-		for (channel = 0; channel < 8; channel++)
-			__cvmx_usb_write_csr32(usb,
-				CVMX_USBCX_HCINTMSKX(channel, usb->index), 0);
-	}
-
-	{
-		/*
-		 * Host Port Initialization
-		 *
-		 * 1. Program the host-port interrupt-mask field to unmask,
-		 *    USBC_GINTMSK[PRTINT] = 1
-		 */
-		USB_SET_FIELD32(CVMX_USBCX_GINTMSK(usb->index),
-				union cvmx_usbcx_gintmsk, prtintmsk, 1);
-		USB_SET_FIELD32(CVMX_USBCX_GINTMSK(usb->index),
-				union cvmx_usbcx_gintmsk, disconnintmsk, 1);
-		/*
-		 * 2. Program the USBC_HCFG register to select full-speed host
-		 *    or high-speed host.
-		 */
-		{
-			union cvmx_usbcx_hcfg usbcx_hcfg;
-
-			usbcx_hcfg.u32 = __cvmx_usb_read_csr32(usb,
-					CVMX_USBCX_HCFG(usb->index));
-			usbcx_hcfg.s.fslssupp = 0;
-			usbcx_hcfg.s.fslspclksel = 0;
-			__cvmx_usb_write_csr32(usb,
-					CVMX_USBCX_HCFG(usb->index),
-					usbcx_hcfg.u32);
-		}
-		/*
-		 * 3. Program the port power bit to drive VBUS on the USB,
-		 *    USBC_HPRT[PRTPWR] = 1
-		 */
-		USB_SET_FIELD32(CVMX_USBCX_HPRT(usb->index),
-				union cvmx_usbcx_hprt, prtpwr, 1);
-
-		/*
-		 * Steps 4-15 from the manual are done later in the port enable
-		 */
-	}
+	usbcx_gintmsk.u32 = cvmx_usb_read_csr32(usb,
+						CVMX_USBCX_GINTMSK(usb->index));
+	usbcx_gintmsk.s.otgintmsk = 1;
+	usbcx_gintmsk.s.modemismsk = 1;
+	usbcx_gintmsk.s.hchintmsk = 1;
+	usbcx_gintmsk.s.sofmsk = 0;
+	/* We need RX FIFO interrupts if we don't have DMA */
+	if (usb->init_flags & CVMX_USB_INITIALIZE_FLAGS_NO_DMA)
+		usbcx_gintmsk.s.rxflvlmsk = 1;
+	cvmx_usb_write_csr32(usb, CVMX_USBCX_GINTMSK(usb->index),
+			     usbcx_gintmsk.u32);
 
-	return 0;
-}
+	/*
+	 * Disable all channel interrupts. We'll enable them per channel later.
+	 */
+	for (channel = 0; channel < 8; channel++)
+		cvmx_usb_write_csr32(usb,
+				     CVMX_USBCX_HCINTMSKX(channel, usb->index),
+				     0);
 
+	/*
+	 * Host Port Initialization
+	 *
+	 * 1. Program the host-port interrupt-mask field to unmask,
+	 *    USBC_GINTMSK[PRTINT] = 1
+	 */
+	USB_SET_FIELD32(CVMX_USBCX_GINTMSK(usb->index),
+			cvmx_usbcx_gintmsk, prtintmsk, 1);
+	USB_SET_FIELD32(CVMX_USBCX_GINTMSK(usb->index),
+			cvmx_usbcx_gintmsk, disconnintmsk, 1);
 
-/**
- * Shutdown a USB port after a call to cvmx_usb_initialize().
- * The port should be disabled with all pipes closed when this
- * function is called.
- *
- * @usb: USB device state populated by cvmx_usb_initialize().
- *
- * Returns: 0 or a negative error code.
- */
-static int cvmx_usb_shutdown(struct cvmx_usb_state *usb)
-{
-	union cvmx_usbnx_clk_ctl usbn_clk_ctl;
+	/*
+	 * 2. Program the USBC_HCFG register to select full-speed host
+	 *    or high-speed host.
+	 */
+	usbcx_hcfg.u32 = cvmx_usb_read_csr32(usb, CVMX_USBCX_HCFG(usb->index));
+	usbcx_hcfg.s.fslssupp = 0;
+	usbcx_hcfg.s.fslspclksel = 0;
+	cvmx_usb_write_csr32(usb, CVMX_USBCX_HCFG(usb->index), usbcx_hcfg.u32);
 
-	/* Make sure all pipes are closed */
-	if (!list_empty(&usb->idle_pipes) ||
-	    !list_empty(&usb->active_pipes[CVMX_USB_TRANSFER_ISOCHRONOUS]) ||
-	    !list_empty(&usb->active_pipes[CVMX_USB_TRANSFER_INTERRUPT]) ||
-	    !list_empty(&usb->active_pipes[CVMX_USB_TRANSFER_CONTROL]) ||
-	    !list_empty(&usb->active_pipes[CVMX_USB_TRANSFER_BULK]))
-		return -EBUSY;
+	cvmx_fifo_setup(usb);
 
-	/* Disable the clocks and put them in power on reset */
-	usbn_clk_ctl.u64 = __cvmx_usb_read_csr64(usb,
-			CVMX_USBNX_CLK_CTL(usb->index));
-	usbn_clk_ctl.s.enable = 1;
-	usbn_clk_ctl.s.por = 1;
-	usbn_clk_ctl.s.hclk_rst = 1;
-	usbn_clk_ctl.s.prst = 0;
-	usbn_clk_ctl.s.hrst = 0;
-	__cvmx_usb_write_csr64(usb, CVMX_USBNX_CLK_CTL(usb->index),
-			       usbn_clk_ctl.u64);
-	return 0;
+	/*
+	 * If the controller is getting port events right after the reset, it
+	 * means the initialization failed. Try resetting the controller again
+	 * in such case. This is seen to happen after cold boot on DSR-1000N.
+	 */
+	usbc_gintsts.u32 = cvmx_usb_read_csr32(usb,
+					       CVMX_USBCX_GINTSTS(usb->index));
+	cvmx_usb_write_csr32(usb, CVMX_USBCX_GINTSTS(usb->index),
+			     usbc_gintsts.u32);
+	dev_dbg(dev, "gintsts after reset: 0x%x\n", (int)usbc_gintsts.u32);
+	if (!usbc_gintsts.s.disconnint && !usbc_gintsts.s.prtint)
+		return 0;
+	if (retries++ >= 5)
+		return -EAGAIN;
+	dev_info(dev, "controller reset failed (gintsts=0x%x) - retrying\n",
+		 (int)usbc_gintsts.u32);
+	msleep(50);
+	cvmx_usb_shutdown(usb);
+	msleep(50);
+	goto retry;
 }
 
-
 /**
- * Enable a USB port. After this call succeeds, the USB port is
+ * Reset a USB port. After this call succeeds, the USB port is
  * online and servicing requests.
  *
  * @usb: USB device state populated by cvmx_usb_initialize().
- *
- * Returns: 0 or a negative error code.
  */
-static int cvmx_usb_enable(struct cvmx_usb_state *usb)
+static void cvmx_usb_reset_port(struct cvmx_usb_state *usb)
 {
-	union cvmx_usbcx_ghwcfg3 usbcx_ghwcfg3;
-
-	usb->usbcx_hprt.u32 = __cvmx_usb_read_csr32(usb,
-			CVMX_USBCX_HPRT(usb->index));
-
-	/*
-	 * If the port is already enabled the just return. We don't need to do
-	 * anything
-	 */
-	if (usb->usbcx_hprt.s.prtena)
-		return 0;
-
-	/* If there is nothing plugged into the port then fail immediately */
-	if (!usb->usbcx_hprt.s.prtconnsts)
-		return -ETIMEDOUT;
+	usb->usbcx_hprt.u32 = cvmx_usb_read_csr32(usb,
+						  CVMX_USBCX_HPRT(usb->index));
 
 	/* Program the port reset bit to start the reset process */
-	USB_SET_FIELD32(CVMX_USBCX_HPRT(usb->index), union cvmx_usbcx_hprt,
+	USB_SET_FIELD32(CVMX_USBCX_HPRT(usb->index), cvmx_usbcx_hprt,
 			prtrst, 1);
 
 	/*
@@ -1032,75 +985,15 @@ static int cvmx_usb_enable(struct cvmx_usb_state *usb)
 	mdelay(50);
 
 	/* Program the port reset bit to 0, USBC_HPRT[PRTRST] = 0 */
-	USB_SET_FIELD32(CVMX_USBCX_HPRT(usb->index), union cvmx_usbcx_hprt,
+	USB_SET_FIELD32(CVMX_USBCX_HPRT(usb->index), cvmx_usbcx_hprt,
 			prtrst, 0);
 
-	/* Wait for the USBC_HPRT[PRTENA]. */
-	if (CVMX_WAIT_FOR_FIELD32(CVMX_USBCX_HPRT(usb->index),
-				union cvmx_usbcx_hprt, prtena, ==, 1, 100000))
-		return -ETIMEDOUT;
-
 	/*
 	 * Read the port speed field to get the enumerated speed,
 	 * USBC_HPRT[PRTSPD].
 	 */
-	usb->usbcx_hprt.u32 = __cvmx_usb_read_csr32(usb,
-			CVMX_USBCX_HPRT(usb->index));
-	usbcx_ghwcfg3.u32 = __cvmx_usb_read_csr32(usb,
-			CVMX_USBCX_GHWCFG3(usb->index));
-
-	/*
-	 * 13. Program the USBC_GRXFSIZ register to select the size of the
-	 *     receive FIFO (25%).
-	 */
-	USB_SET_FIELD32(CVMX_USBCX_GRXFSIZ(usb->index),
-			union cvmx_usbcx_grxfsiz, rxfdep,
-			usbcx_ghwcfg3.s.dfifodepth / 4);
-	/*
-	 * 14. Program the USBC_GNPTXFSIZ register to select the size and the
-	 *     start address of the non- periodic transmit FIFO for nonperiodic
-	 *     transactions (50%).
-	 */
-	{
-		union cvmx_usbcx_gnptxfsiz siz;
-
-		siz.u32 = __cvmx_usb_read_csr32(usb,
-				CVMX_USBCX_GNPTXFSIZ(usb->index));
-		siz.s.nptxfdep = usbcx_ghwcfg3.s.dfifodepth / 2;
-		siz.s.nptxfstaddr = usbcx_ghwcfg3.s.dfifodepth / 4;
-		__cvmx_usb_write_csr32(usb, CVMX_USBCX_GNPTXFSIZ(usb->index),
-				       siz.u32);
-	}
-	/*
-	 * 15. Program the USBC_HPTXFSIZ register to select the size and start
-	 *     address of the periodic transmit FIFO for periodic transactions
-	 *     (25%).
-	 */
-	{
-		union cvmx_usbcx_hptxfsiz siz;
-
-		siz.u32 = __cvmx_usb_read_csr32(usb,
-				CVMX_USBCX_HPTXFSIZ(usb->index));
-		siz.s.ptxfsize = usbcx_ghwcfg3.s.dfifodepth / 4;
-		siz.s.ptxfstaddr = 3 * usbcx_ghwcfg3.s.dfifodepth / 4;
-		__cvmx_usb_write_csr32(usb, CVMX_USBCX_HPTXFSIZ(usb->index),
-				       siz.u32);
-	}
-	/* Flush all FIFOs */
-	USB_SET_FIELD32(CVMX_USBCX_GRSTCTL(usb->index),
-			union cvmx_usbcx_grstctl, txfnum, 0x10);
-	USB_SET_FIELD32(CVMX_USBCX_GRSTCTL(usb->index),
-			union cvmx_usbcx_grstctl, txfflsh, 1);
-	CVMX_WAIT_FOR_FIELD32(CVMX_USBCX_GRSTCTL(usb->index),
-			      union cvmx_usbcx_grstctl,
-			      txfflsh, ==, 0, 100);
-	USB_SET_FIELD32(CVMX_USBCX_GRSTCTL(usb->index),
-			union cvmx_usbcx_grstctl, rxfflsh, 1);
-	CVMX_WAIT_FOR_FIELD32(CVMX_USBCX_GRSTCTL(usb->index),
-			      union cvmx_usbcx_grstctl,
-			      rxfflsh, ==, 0, 100);
-
-	return 0;
+	usb->usbcx_hprt.u32 = cvmx_usb_read_csr32(usb,
+						  CVMX_USBCX_HPRT(usb->index));
 }
 
 
@@ -1117,7 +1010,7 @@ static int cvmx_usb_enable(struct cvmx_usb_state *usb)
 static int cvmx_usb_disable(struct cvmx_usb_state *usb)
 {
 	/* Disable the port */
-	USB_SET_FIELD32(CVMX_USBCX_HPRT(usb->index), union cvmx_usbcx_hprt,
+	USB_SET_FIELD32(CVMX_USBCX_HPRT(usb->index), cvmx_usbcx_hprt,
 			prtena, 1);
 	return 0;
 }
@@ -1142,8 +1035,7 @@ static struct cvmx_usb_port_status cvmx_usb_get_status(
 
 	memset(&result, 0, sizeof(result));
 
-	usbc_hprt.u32 = __cvmx_usb_read_csr32(usb,
-			CVMX_USBCX_HPRT(usb->index));
+	usbc_hprt.u32 = cvmx_usb_read_csr32(usb, CVMX_USBCX_HPRT(usb->index));
 	result.port_enabled = usbc_hprt.s.prtena;
 	result.port_over_current = usbc_hprt.s.prtovrcurract;
 	result.port_powered = usbc_hprt.s.prtpwr;
@@ -1223,41 +1115,13 @@ static struct cvmx_usb_pipe *cvmx_usb_open_pipe(struct cvmx_usb_state *usb,
 {
 	struct cvmx_usb_pipe *pipe;
 
-	if (unlikely((device_addr < 0) || (device_addr > MAX_USB_ADDRESS)))
-		return NULL;
-	if (unlikely((endpoint_num < 0) || (endpoint_num > MAX_USB_ENDPOINT)))
-		return NULL;
-	if (unlikely(device_speed > CVMX_USB_SPEED_LOW))
-		return NULL;
-	if (unlikely((max_packet <= 0) || (max_packet > 1024)))
-		return NULL;
-	if (unlikely(transfer_type > CVMX_USB_TRANSFER_INTERRUPT))
-		return NULL;
-	if (unlikely((transfer_dir != CVMX_USB_DIRECTION_OUT) &&
-		(transfer_dir != CVMX_USB_DIRECTION_IN)))
-		return NULL;
-	if (unlikely(interval < 0))
-		return NULL;
-	if (unlikely((transfer_type == CVMX_USB_TRANSFER_CONTROL) && interval))
-		return NULL;
-	if (unlikely(multi_count < 0))
-		return NULL;
-	if (unlikely((device_speed != CVMX_USB_SPEED_HIGH) &&
-		(multi_count != 0)))
-		return NULL;
-	if (unlikely((hub_device_addr < 0) ||
-		(hub_device_addr > MAX_USB_ADDRESS)))
-		return NULL;
-	if (unlikely((hub_port < 0) || (hub_port > MAX_USB_HUB_PORT)))
-		return NULL;
-
 	pipe = kzalloc(sizeof(*pipe), GFP_ATOMIC);
 	if (!pipe)
 		return NULL;
 	if ((device_speed == CVMX_USB_SPEED_HIGH) &&
 		(transfer_dir == CVMX_USB_DIRECTION_OUT) &&
 		(transfer_type == CVMX_USB_TRANSFER_BULK))
-		pipe->flags |= __CVMX_USB_PIPE_FLAGS_NEED_PING;
+		pipe->flags |= CVMX_USB_PIPE_FLAGS_NEED_PING;
 	pipe->device_addr = device_addr;
 	pipe->endpoint_num = endpoint_num;
 	pipe->device_speed = device_speed;
@@ -1272,7 +1136,7 @@ static struct cvmx_usb_pipe *cvmx_usb_open_pipe(struct cvmx_usb_state *usb,
 	 */
 	if (!interval)
 		interval = 1;
-	if (__cvmx_usb_pipe_needs_split(usb, pipe)) {
+	if (cvmx_usb_pipe_needs_split(usb, pipe)) {
 		pipe->interval = interval*8;
 		/* Force start splits to be schedule on uFrame 0 */
 		pipe->next_tx_frame = ((usb->frame_number+7)&~7) +
@@ -1304,7 +1168,7 @@ static struct cvmx_usb_pipe *cvmx_usb_open_pipe(struct cvmx_usb_state *usb,
  *
  * @usb:	USB device state populated by cvmx_usb_initialize().
  */
-static void __cvmx_usb_poll_rx_fifo(struct cvmx_usb_state *usb)
+static void cvmx_usb_poll_rx_fifo(struct cvmx_usb_state *usb)
 {
 	union cvmx_usbcx_grxstsph rx_status;
 	int channel;
@@ -1312,8 +1176,8 @@ static void __cvmx_usb_poll_rx_fifo(struct cvmx_usb_state *usb)
 	uint64_t address;
 	uint32_t *ptr;
 
-	rx_status.u32 = __cvmx_usb_read_csr32(usb,
-			CVMX_USBCX_GRXSTSPH(usb->index));
+	rx_status.u32 = cvmx_usb_read_csr32(usb,
+					    CVMX_USBCX_GRXSTSPH(usb->index));
 	/* Only read data if IN data is there */
 	if (rx_status.s.pktsts != 2)
 		return;
@@ -1327,18 +1191,17 @@ static void __cvmx_usb_poll_rx_fifo(struct cvmx_usb_state *usb)
 		return;
 
 	/* Get where the DMA engine would have written this data */
-	address = __cvmx_usb_read_csr64(usb,
-			CVMX_USBNX_DMA0_INB_CHN0(usb->index) + channel*8);
+	address = cvmx_read64_uint64(CVMX_USBNX_DMA0_INB_CHN0(usb->index) +
+				     channel * 8);
 
 	ptr = cvmx_phys_to_ptr(address);
-	__cvmx_usb_write_csr64(usb,
-			       CVMX_USBNX_DMA0_INB_CHN0(usb->index) + channel*8,
-			       address + bytes);
+	cvmx_write64_uint64(CVMX_USBNX_DMA0_INB_CHN0(usb->index) + channel * 8,
+			    address + bytes);
 
 	/* Loop writing the FIFO data for this packet into memory */
 	while (bytes > 0) {
-		*ptr++ = __cvmx_usb_read_csr32(usb,
-				USB_FIFO_ADDRESS(channel, usb->index));
+		*ptr++ = cvmx_usb_read_csr32(usb,
+					USB_FIFO_ADDRESS(channel, usb->index));
 		bytes -= 4;
 	}
 	CVMX_SYNCW;
@@ -1356,8 +1219,8 @@ static void __cvmx_usb_poll_rx_fifo(struct cvmx_usb_state *usb)
  * Returns: Non zero if the hardware fifo was too small and needs
  *	    to be serviced again.
  */
-static int __cvmx_usb_fill_tx_hw(struct cvmx_usb_state *usb,
-				 struct cvmx_usb_tx_fifo *fifo, int available)
+static int cvmx_usb_fill_tx_hw(struct cvmx_usb_state *usb,
+			       struct cvmx_usb_tx_fifo *fifo, int available)
 {
 	/*
 	 * We're done either when there isn't anymore space or the software FIFO
@@ -1412,38 +1275,34 @@ static int __cvmx_usb_fill_tx_hw(struct cvmx_usb_state *usb,
  *
  * @usb:	USB device state populated by cvmx_usb_initialize().
  */
-static void __cvmx_usb_poll_tx_fifo(struct cvmx_usb_state *usb)
+static void cvmx_usb_poll_tx_fifo(struct cvmx_usb_state *usb)
 {
 	if (usb->periodic.head != usb->periodic.tail) {
 		union cvmx_usbcx_hptxsts tx_status;
 
-		tx_status.u32 = __cvmx_usb_read_csr32(usb,
-				CVMX_USBCX_HPTXSTS(usb->index));
-		if (__cvmx_usb_fill_tx_hw(usb, &usb->periodic,
-					  tx_status.s.ptxfspcavail))
+		tx_status.u32 = cvmx_usb_read_csr32(usb,
+					CVMX_USBCX_HPTXSTS(usb->index));
+		if (cvmx_usb_fill_tx_hw(usb, &usb->periodic,
+					tx_status.s.ptxfspcavail))
 			USB_SET_FIELD32(CVMX_USBCX_GINTMSK(usb->index),
-					union cvmx_usbcx_gintmsk,
-					ptxfempmsk, 1);
+					cvmx_usbcx_gintmsk, ptxfempmsk, 1);
 		else
 			USB_SET_FIELD32(CVMX_USBCX_GINTMSK(usb->index),
-					union cvmx_usbcx_gintmsk,
-					ptxfempmsk, 0);
+					cvmx_usbcx_gintmsk, ptxfempmsk, 0);
 	}
 
 	if (usb->nonperiodic.head != usb->nonperiodic.tail) {
 		union cvmx_usbcx_gnptxsts tx_status;
 
-		tx_status.u32 = __cvmx_usb_read_csr32(usb,
-				CVMX_USBCX_GNPTXSTS(usb->index));
-		if (__cvmx_usb_fill_tx_hw(usb, &usb->nonperiodic,
-					  tx_status.s.nptxfspcavail))
+		tx_status.u32 = cvmx_usb_read_csr32(usb,
+					CVMX_USBCX_GNPTXSTS(usb->index));
+		if (cvmx_usb_fill_tx_hw(usb, &usb->nonperiodic,
+					tx_status.s.nptxfspcavail))
 			USB_SET_FIELD32(CVMX_USBCX_GINTMSK(usb->index),
-					union cvmx_usbcx_gintmsk,
-					nptxfempmsk, 1);
+					cvmx_usbcx_gintmsk, nptxfempmsk, 1);
 		else
 			USB_SET_FIELD32(CVMX_USBCX_GINTMSK(usb->index),
-					union cvmx_usbcx_gintmsk,
-					nptxfempmsk, 0);
+					cvmx_usbcx_gintmsk, nptxfempmsk, 0);
 	}
 }
 
@@ -1454,7 +1313,7 @@ static void __cvmx_usb_poll_tx_fifo(struct cvmx_usb_state *usb)
  * @usb:	  USB device state populated by cvmx_usb_initialize().
  * @channel:	  Channel number to get packet from
  */
-static void __cvmx_usb_fill_tx_fifo(struct cvmx_usb_state *usb, int channel)
+static void cvmx_usb_fill_tx_fifo(struct cvmx_usb_state *usb, int channel)
 {
 	union cvmx_usbcx_hccharx hcchar;
 	union cvmx_usbcx_hcspltx usbc_hcsplt;
@@ -1462,14 +1321,14 @@ static void __cvmx_usb_fill_tx_fifo(struct cvmx_usb_state *usb, int channel)
 	struct cvmx_usb_tx_fifo *fifo;
 
 	/* We only need to fill data on outbound channels */
-	hcchar.u32 = __cvmx_usb_read_csr32(usb,
+	hcchar.u32 = cvmx_usb_read_csr32(usb,
 			CVMX_USBCX_HCCHARX(channel, usb->index));
 	if (hcchar.s.epdir != CVMX_USB_DIRECTION_OUT)
 		return;
 
 	/* OUT Splits only have data on the start and not the complete */
-	usbc_hcsplt.u32 = __cvmx_usb_read_csr32(usb,
-			CVMX_USBCX_HCSPLTX(channel, usb->index));
+	usbc_hcsplt.u32 = cvmx_usb_read_csr32(usb,
+				CVMX_USBCX_HCSPLTX(channel, usb->index));
 	if (usbc_hcsplt.s.spltena && usbc_hcsplt.s.compsplt)
 		return;
 
@@ -1477,8 +1336,8 @@ static void __cvmx_usb_fill_tx_fifo(struct cvmx_usb_state *usb, int channel)
 	 * Find out how many bytes we need to fill and convert it into 32bit
 	 * words.
 	 */
-	usbc_hctsiz.u32 = __cvmx_usb_read_csr32(usb,
-			CVMX_USBCX_HCTSIZX(channel, usb->index));
+	usbc_hctsiz.u32 = cvmx_usb_read_csr32(usb,
+				CVMX_USBCX_HCTSIZX(channel, usb->index));
 	if (!usbc_hctsiz.s.xfersize)
 		return;
 
@@ -1489,28 +1348,28 @@ static void __cvmx_usb_fill_tx_fifo(struct cvmx_usb_state *usb, int channel)
 		fifo = &usb->nonperiodic;
 
 	fifo->entry[fifo->head].channel = channel;
-	fifo->entry[fifo->head].address = __cvmx_usb_read_csr64(usb,
-			CVMX_USBNX_DMA0_OUTB_CHN0(usb->index) + channel*8);
+	fifo->entry[fifo->head].address =
+		cvmx_read64_uint64(CVMX_USBNX_DMA0_OUTB_CHN0(usb->index) +
+				   channel * 8);
 	fifo->entry[fifo->head].size = (usbc_hctsiz.s.xfersize+3)>>2;
 	fifo->head++;
 	if (fifo->head > MAX_CHANNELS)
 		fifo->head = 0;
 
-	__cvmx_usb_poll_tx_fifo(usb);
+	cvmx_usb_poll_tx_fifo(usb);
 }
 
 /**
  * Perform channel specific setup for Control transactions. All
- * the generic stuff will already have been done in
- * __cvmx_usb_start_channel()
+ * the generic stuff will already have been done in cvmx_usb_start_channel().
  *
  * @usb:	  USB device state populated by cvmx_usb_initialize().
  * @channel:	  Channel to setup
  * @pipe:	  Pipe for control transaction
  */
-static void __cvmx_usb_start_channel_control(struct cvmx_usb_state *usb,
-					     int channel,
-					     struct cvmx_usb_pipe *pipe)
+static void cvmx_usb_start_channel_control(struct cvmx_usb_state *usb,
+					   int channel,
+					   struct cvmx_usb_pipe *pipe)
 {
 	struct octeon_hcd *priv = cvmx_usb_to_octeon(usb);
 	struct usb_hcd *hcd = octeon_to_hcd(priv);
@@ -1525,8 +1384,8 @@ static void __cvmx_usb_start_channel_control(struct cvmx_usb_state *usb,
 	int packets_to_transfer;
 	union cvmx_usbcx_hctsizx usbc_hctsiz;
 
-	usbc_hctsiz.u32 = __cvmx_usb_read_csr32(usb,
-			CVMX_USBCX_HCTSIZX(channel, usb->index));
+	usbc_hctsiz.u32 = cvmx_usb_read_csr32(usb,
+				CVMX_USBCX_HCTSIZX(channel, usb->index));
 
 	switch (transaction->stage) {
 	case CVMX_USB_STAGE_NON_CONTROL:
@@ -1538,72 +1397,72 @@ static void __cvmx_usb_start_channel_control(struct cvmx_usb_state *usb,
 		bytes_to_transfer = sizeof(*header);
 		/* All Control operations start with a setup going OUT */
 		USB_SET_FIELD32(CVMX_USBCX_HCCHARX(channel, usb->index),
-				union cvmx_usbcx_hccharx, epdir,
+				cvmx_usbcx_hccharx, epdir,
 				CVMX_USB_DIRECTION_OUT);
 		/*
 		 * Setup send the control header instead of the buffer data. The
 		 * buffer data will be used in the next stage
 		 */
-		__cvmx_usb_write_csr64(usb,
-			CVMX_USBNX_DMA0_OUTB_CHN0(usb->index) + channel*8,
-			transaction->control_header);
+		cvmx_write64_uint64(CVMX_USBNX_DMA0_OUTB_CHN0(usb->index) +
+					channel * 8,
+				    transaction->control_header);
 		break;
 	case CVMX_USB_STAGE_SETUP_SPLIT_COMPLETE:
 		usbc_hctsiz.s.pid = 3; /* Setup */
 		bytes_to_transfer = 0;
 		/* All Control operations start with a setup going OUT */
 		USB_SET_FIELD32(CVMX_USBCX_HCCHARX(channel, usb->index),
-				union cvmx_usbcx_hccharx, epdir,
+				cvmx_usbcx_hccharx, epdir,
 				CVMX_USB_DIRECTION_OUT);
 
 		USB_SET_FIELD32(CVMX_USBCX_HCSPLTX(channel, usb->index),
-				union cvmx_usbcx_hcspltx, compsplt, 1);
+				cvmx_usbcx_hcspltx, compsplt, 1);
 		break;
 	case CVMX_USB_STAGE_DATA:
-		usbc_hctsiz.s.pid = __cvmx_usb_get_data_pid(pipe);
-		if (__cvmx_usb_pipe_needs_split(usb, pipe)) {
+		usbc_hctsiz.s.pid = cvmx_usb_get_data_pid(pipe);
+		if (cvmx_usb_pipe_needs_split(usb, pipe)) {
 			if (header->bRequestType & USB_DIR_IN)
 				bytes_to_transfer = 0;
 			else if (bytes_to_transfer > pipe->max_packet)
 				bytes_to_transfer = pipe->max_packet;
 		}
 		USB_SET_FIELD32(CVMX_USBCX_HCCHARX(channel, usb->index),
-				union cvmx_usbcx_hccharx, epdir,
+				cvmx_usbcx_hccharx, epdir,
 				((header->bRequestType & USB_DIR_IN) ?
 					CVMX_USB_DIRECTION_IN :
 					CVMX_USB_DIRECTION_OUT));
 		break;
 	case CVMX_USB_STAGE_DATA_SPLIT_COMPLETE:
-		usbc_hctsiz.s.pid = __cvmx_usb_get_data_pid(pipe);
+		usbc_hctsiz.s.pid = cvmx_usb_get_data_pid(pipe);
 		if (!(header->bRequestType & USB_DIR_IN))
 			bytes_to_transfer = 0;
 		USB_SET_FIELD32(CVMX_USBCX_HCCHARX(channel, usb->index),
-				union cvmx_usbcx_hccharx, epdir,
+				cvmx_usbcx_hccharx, epdir,
 				((header->bRequestType & USB_DIR_IN) ?
 					CVMX_USB_DIRECTION_IN :
 					CVMX_USB_DIRECTION_OUT));
 		USB_SET_FIELD32(CVMX_USBCX_HCSPLTX(channel, usb->index),
-				union cvmx_usbcx_hcspltx, compsplt, 1);
+				cvmx_usbcx_hcspltx, compsplt, 1);
 		break;
 	case CVMX_USB_STAGE_STATUS:
-		usbc_hctsiz.s.pid = __cvmx_usb_get_data_pid(pipe);
+		usbc_hctsiz.s.pid = cvmx_usb_get_data_pid(pipe);
 		bytes_to_transfer = 0;
 		USB_SET_FIELD32(CVMX_USBCX_HCCHARX(channel, usb->index),
-				union cvmx_usbcx_hccharx, epdir,
+				cvmx_usbcx_hccharx, epdir,
 				((header->bRequestType & USB_DIR_IN) ?
 					CVMX_USB_DIRECTION_OUT :
 					CVMX_USB_DIRECTION_IN));
 		break;
 	case CVMX_USB_STAGE_STATUS_SPLIT_COMPLETE:
-		usbc_hctsiz.s.pid = __cvmx_usb_get_data_pid(pipe);
+		usbc_hctsiz.s.pid = cvmx_usb_get_data_pid(pipe);
 		bytes_to_transfer = 0;
 		USB_SET_FIELD32(CVMX_USBCX_HCCHARX(channel, usb->index),
-				union cvmx_usbcx_hccharx, epdir,
+				cvmx_usbcx_hccharx, epdir,
 				((header->bRequestType & USB_DIR_IN) ?
 					CVMX_USB_DIRECTION_OUT :
 					CVMX_USB_DIRECTION_IN));
 		USB_SET_FIELD32(CVMX_USBCX_HCSPLTX(channel, usb->index),
-				union cvmx_usbcx_hcspltx, compsplt, 1);
+				cvmx_usbcx_hcspltx, compsplt, 1);
 		break;
 	}
 
@@ -1646,8 +1505,8 @@ static void __cvmx_usb_start_channel_control(struct cvmx_usb_state *usb,
 	usbc_hctsiz.s.xfersize = bytes_to_transfer;
 	usbc_hctsiz.s.pktcnt = packets_to_transfer;
 
-	__cvmx_usb_write_csr32(usb, CVMX_USBCX_HCTSIZX(channel, usb->index),
-			       usbc_hctsiz.u32);
+	cvmx_usb_write_csr32(usb, CVMX_USBCX_HCTSIZX(channel, usb->index),
+			     usbc_hctsiz.u32);
 }
 
 
@@ -1658,9 +1517,8 @@ static void __cvmx_usb_start_channel_control(struct cvmx_usb_state *usb,
  * @channel:	  Channel to setup
  * @pipe:	  Pipe to start
  */
-static void __cvmx_usb_start_channel(struct cvmx_usb_state *usb,
-				     int channel,
-				     struct cvmx_usb_pipe *pipe)
+static void cvmx_usb_start_channel(struct cvmx_usb_state *usb, int channel,
+				   struct cvmx_usb_pipe *pipe)
 {
 	struct cvmx_usb_transaction *transaction =
 		list_first_entry(&pipe->transactions, typeof(*transaction),
@@ -1672,7 +1530,7 @@ static void __cvmx_usb_start_channel(struct cvmx_usb_state *usb,
 	/* Attach the channel to the pipe */
 	usb->pipe_for_channel[channel] = pipe;
 	pipe->channel = channel;
-	pipe->flags |= __CVMX_USB_PIPE_FLAGS_SCHEDULED;
+	pipe->flags |= CVMX_USB_PIPE_FLAGS_SCHEDULED;
 
 	/* Mark this channel as in use */
 	usb->idle_hardware_channels &= ~(1<<channel);
@@ -1684,12 +1542,12 @@ static void __cvmx_usb_start_channel(struct cvmx_usb_state *usb,
 		union cvmx_usbcx_haintmsk usbc_haintmsk;
 
 		/* Clear all channel status bits */
-		usbc_hcint.u32 = __cvmx_usb_read_csr32(usb,
-				CVMX_USBCX_HCINTX(channel, usb->index));
+		usbc_hcint.u32 = cvmx_usb_read_csr32(usb,
+					CVMX_USBCX_HCINTX(channel, usb->index));
 
-		__cvmx_usb_write_csr32(usb,
-				       CVMX_USBCX_HCINTX(channel, usb->index),
-				       usbc_hcint.u32);
+		cvmx_usb_write_csr32(usb,
+				     CVMX_USBCX_HCINTX(channel, usb->index),
+				     usbc_hcint.u32);
 
 		usbc_hcintmsk.u32 = 0;
 		usbc_hcintmsk.s.chhltdmsk = 1;
@@ -1702,7 +1560,7 @@ static void __cvmx_usb_start_channel(struct cvmx_usb_state *usb,
 			usbc_hcintmsk.s.frmovrunmsk = 1;
 			usbc_hcintmsk.s.bblerrmsk = 1;
 			usbc_hcintmsk.s.xacterrmsk = 1;
-			if (__cvmx_usb_pipe_needs_split(usb, pipe)) {
+			if (cvmx_usb_pipe_needs_split(usb, pipe)) {
 				/*
 				 * Splits don't generate xfercompl, so we need
 				 * ACK and NYET.
@@ -1714,21 +1572,21 @@ static void __cvmx_usb_start_channel(struct cvmx_usb_state *usb,
 			usbc_hcintmsk.s.stallmsk = 1;
 			usbc_hcintmsk.s.xfercomplmsk = 1;
 		}
-		__cvmx_usb_write_csr32(usb,
+		cvmx_usb_write_csr32(usb,
 				CVMX_USBCX_HCINTMSKX(channel, usb->index),
 				usbc_hcintmsk.u32);
 
 		/* Enable the channel interrupt to propagate */
-		usbc_haintmsk.u32 = __cvmx_usb_read_csr32(usb,
+		usbc_haintmsk.u32 = cvmx_usb_read_csr32(usb,
 					CVMX_USBCX_HAINTMSK(usb->index));
 		usbc_haintmsk.s.haintmsk |= 1<<channel;
-		__cvmx_usb_write_csr32(usb,
-					CVMX_USBCX_HAINTMSK(usb->index),
-					usbc_haintmsk.u32);
+		cvmx_usb_write_csr32(usb, CVMX_USBCX_HAINTMSK(usb->index),
+				     usbc_haintmsk.u32);
 	}
 
-	/* Setup the locations the DMA engines use  */
+	/* Setup the location the DMA engine uses. */
 	{
+		uint64_t reg;
 		uint64_t dma_address = transaction->buffer +
 					transaction->actual_bytes;
 
@@ -1737,13 +1595,11 @@ static void __cvmx_usb_start_channel(struct cvmx_usb_state *usb,
 					transaction->iso_packets[0].offset +
 					transaction->actual_bytes;
 
-		__cvmx_usb_write_csr64(usb,
-			CVMX_USBNX_DMA0_OUTB_CHN0(usb->index) + channel*8,
-			dma_address);
-
-		__cvmx_usb_write_csr64(usb,
-			CVMX_USBNX_DMA0_INB_CHN0(usb->index) + channel*8,
-			dma_address);
+		if (pipe->transfer_dir == CVMX_USB_DIRECTION_OUT)
+			reg = CVMX_USBNX_DMA0_OUTB_CHN0(usb->index);
+		else
+			reg = CVMX_USBNX_DMA0_INB_CHN0(usb->index);
+		cvmx_write64_uint64(reg + channel * 8, dma_address);
 	}
 
 	/* Setup both the size of the transfer and the SPLIT characteristics */
@@ -1767,7 +1623,7 @@ static void __cvmx_usb_start_channel(struct cvmx_usb_state *usb,
 		 * We need to do split transactions when we are talking to non
 		 * high speed devices that are behind a high speed hub
 		 */
-		if (__cvmx_usb_pipe_needs_split(usb, pipe)) {
+		if (cvmx_usb_pipe_needs_split(usb, pipe)) {
 			/*
 			 * On the start split phase (stage is even) record the
 			 * frame number we will need to send the split complete.
@@ -1898,18 +1754,19 @@ static void __cvmx_usb_start_channel(struct cvmx_usb_state *usb,
 		usbc_hctsiz.s.pktcnt = packets_to_transfer;
 
 		/* Update the DATA0/DATA1 toggle */
-		usbc_hctsiz.s.pid = __cvmx_usb_get_data_pid(pipe);
+		usbc_hctsiz.s.pid = cvmx_usb_get_data_pid(pipe);
 		/*
 		 * High speed pipes may need a hardware ping before they start
 		 */
-		if (pipe->flags & __CVMX_USB_PIPE_FLAGS_NEED_PING)
+		if (pipe->flags & CVMX_USB_PIPE_FLAGS_NEED_PING)
 			usbc_hctsiz.s.dopng = 1;
 
-		__cvmx_usb_write_csr32(usb,
-				       CVMX_USBCX_HCSPLTX(channel, usb->index),
-				       usbc_hcsplt.u32);
-		__cvmx_usb_write_csr32(usb, CVMX_USBCX_HCTSIZX(channel,
-					usb->index), usbc_hctsiz.u32);
+		cvmx_usb_write_csr32(usb,
+				     CVMX_USBCX_HCSPLTX(channel, usb->index),
+				     usbc_hcsplt.u32);
+		cvmx_usb_write_csr32(usb,
+				     CVMX_USBCX_HCTSIZX(channel, usb->index),
+				     usbc_hctsiz.u32);
 	}
 
 	/* Setup the Host Channel Characteristics Register */
@@ -1928,7 +1785,7 @@ static void __cvmx_usb_start_channel(struct cvmx_usb_state *usb,
 		 * immediate retries of failure. These retries happen too
 		 * quickly, so we disable these entirely for splits
 		 */
-		if (__cvmx_usb_pipe_needs_split(usb, pipe))
+		if (cvmx_usb_pipe_needs_split(usb, pipe))
 			usbc_hcchar.s.ec = 1;
 		else if (pipe->multi_count < 1)
 			usbc_hcchar.s.ec = 1;
@@ -1945,21 +1802,21 @@ static void __cvmx_usb_start_channel(struct cvmx_usb_state *usb,
 		usbc_hcchar.s.epdir = pipe->transfer_dir;
 		usbc_hcchar.s.epnum = pipe->endpoint_num;
 		usbc_hcchar.s.mps = pipe->max_packet;
-		__cvmx_usb_write_csr32(usb,
-				       CVMX_USBCX_HCCHARX(channel, usb->index),
-				       usbc_hcchar.u32);
+		cvmx_usb_write_csr32(usb,
+				     CVMX_USBCX_HCCHARX(channel, usb->index),
+				     usbc_hcchar.u32);
 	}
 
 	/* Do transaction type specific fixups as needed */
 	switch (transaction->type) {
 	case CVMX_USB_TRANSFER_CONTROL:
-		__cvmx_usb_start_channel_control(usb, channel, pipe);
+		cvmx_usb_start_channel_control(usb, channel, pipe);
 		break;
 	case CVMX_USB_TRANSFER_BULK:
 	case CVMX_USB_TRANSFER_INTERRUPT:
 		break;
 	case CVMX_USB_TRANSFER_ISOCHRONOUS:
-		if (!__cvmx_usb_pipe_needs_split(usb, pipe)) {
+		if (!cvmx_usb_pipe_needs_split(usb, pipe)) {
 			/*
 			 * ISO transactions require different PIDs depending on
 			 * direction and how many packets are needed
@@ -1969,32 +1826,30 @@ static void __cvmx_usb_start_channel(struct cvmx_usb_state *usb,
 					USB_SET_FIELD32(
 						CVMX_USBCX_HCTSIZX(channel,
 								   usb->index),
-						union cvmx_usbcx_hctsizx,
-						pid, 0);
+						cvmx_usbcx_hctsizx, pid, 0);
 				else /* Need MDATA */
 					USB_SET_FIELD32(
 						CVMX_USBCX_HCTSIZX(channel,
 								   usb->index),
-						union cvmx_usbcx_hctsizx,
-						pid, 3);
+						cvmx_usbcx_hctsizx, pid, 3);
 			}
 		}
 		break;
 	}
 	{
 		union cvmx_usbcx_hctsizx usbc_hctsiz = {.u32 =
-			__cvmx_usb_read_csr32(usb,
+			cvmx_usb_read_csr32(usb,
 				CVMX_USBCX_HCTSIZX(channel, usb->index))};
 		transaction->xfersize = usbc_hctsiz.s.xfersize;
 		transaction->pktcnt = usbc_hctsiz.s.pktcnt;
 	}
 	/* Remeber when we start a split transaction */
-	if (__cvmx_usb_pipe_needs_split(usb, pipe))
+	if (cvmx_usb_pipe_needs_split(usb, pipe))
 		usb->active_split = transaction;
 	USB_SET_FIELD32(CVMX_USBCX_HCCHARX(channel, usb->index),
-			union cvmx_usbcx_hccharx, chena, 1);
+			cvmx_usbcx_hccharx, chena, 1);
 	if (usb->init_flags & CVMX_USB_INITIALIZE_FLAGS_NO_DMA)
-		__cvmx_usb_fill_tx_fifo(usb, channel);
+		cvmx_usb_fill_tx_fifo(usb, channel);
 }
 
 
@@ -2007,7 +1862,7 @@ static void __cvmx_usb_start_channel(struct cvmx_usb_state *usb,
  *
  * Returns: Pipe or NULL if none are ready
  */
-static struct cvmx_usb_pipe *__cvmx_usb_find_ready_pipe(
+static struct cvmx_usb_pipe *cvmx_usb_find_ready_pipe(
 		struct cvmx_usb_state *usb,
 		struct list_head *list,
 		uint64_t current_frame)
@@ -2018,7 +1873,7 @@ static struct cvmx_usb_pipe *__cvmx_usb_find_ready_pipe(
 		struct cvmx_usb_transaction *t =
 			list_first_entry(&pipe->transactions, typeof(*t),
 					 node);
-		if (!(pipe->flags & __CVMX_USB_PIPE_FLAGS_SCHEDULED) && t &&
+		if (!(pipe->flags & CVMX_USB_PIPE_FLAGS_SCHEDULED) && t &&
 			(pipe->next_tx_frame <= current_frame) &&
 			((pipe->split_sc_frame == -1) ||
 			 ((((int)current_frame - (int)pipe->split_sc_frame)
@@ -2039,7 +1894,7 @@ static struct cvmx_usb_pipe *__cvmx_usb_find_ready_pipe(
  * @usb:	 USB device state populated by cvmx_usb_initialize().
  * @is_sof:	 True if this schedule was called on a SOF interrupt.
  */
-static void __cvmx_usb_schedule(struct cvmx_usb_state *usb, int is_sof)
+static void cvmx_usb_schedule(struct cvmx_usb_state *usb, int is_sof)
 {
 	int channel;
 	struct cvmx_usb_pipe *pipe;
@@ -2052,12 +1907,12 @@ static void __cvmx_usb_schedule(struct cvmx_usb_state *usb, int is_sof)
 		 * at the end of a frame and cause an overrun.
 		 */
 		union cvmx_usbcx_hfnum hfnum = {
-			.u32 = __cvmx_usb_read_csr32(usb,
+			.u32 = cvmx_usb_read_csr32(usb,
 						CVMX_USBCX_HFNUM(usb->index))
 		};
 
 		union cvmx_usbcx_hfir hfir = {
-			.u32 = __cvmx_usb_read_csr32(usb,
+			.u32 = cvmx_usb_read_csr32(usb,
 						CVMX_USBCX_HFIR(usb->index))
 		};
 
@@ -2079,23 +1934,23 @@ static void __cvmx_usb_schedule(struct cvmx_usb_state *usb, int is_sof)
 			 * way we are sure that the periodic data is sent in the
 			 * beginning of the frame
 			 */
-			pipe = __cvmx_usb_find_ready_pipe(usb,
+			pipe = cvmx_usb_find_ready_pipe(usb,
 					usb->active_pipes +
 					CVMX_USB_TRANSFER_ISOCHRONOUS,
 					usb->frame_number);
 			if (likely(!pipe))
-				pipe = __cvmx_usb_find_ready_pipe(usb,
+				pipe = cvmx_usb_find_ready_pipe(usb,
 						usb->active_pipes +
 						CVMX_USB_TRANSFER_INTERRUPT,
 						usb->frame_number);
 		}
 		if (likely(!pipe)) {
-			pipe = __cvmx_usb_find_ready_pipe(usb,
+			pipe = cvmx_usb_find_ready_pipe(usb,
 					usb->active_pipes +
 					CVMX_USB_TRANSFER_CONTROL,
 					usb->frame_number);
 			if (likely(!pipe))
-				pipe = __cvmx_usb_find_ready_pipe(usb,
+				pipe = cvmx_usb_find_ready_pipe(usb,
 						usb->active_pipes +
 						CVMX_USB_TRANSFER_BULK,
 						usb->frame_number);
@@ -2103,7 +1958,7 @@ static void __cvmx_usb_schedule(struct cvmx_usb_state *usb, int is_sof)
 		if (!pipe)
 			break;
 
-		__cvmx_usb_start_channel(usb, channel, pipe);
+		cvmx_usb_start_channel(usb, channel, pipe);
 	}
 
 done:
@@ -2122,7 +1977,7 @@ done:
 		}
 	}
 	USB_SET_FIELD32(CVMX_USBCX_GINTMSK(usb->index),
-			union cvmx_usbcx_gintmsk, sofmsk, need_sof);
+			cvmx_usbcx_gintmsk, sofmsk, need_sof);
 }
 
 static void octeon_usb_urb_complete_callback(struct cvmx_usb_state *usb,
@@ -2226,11 +2081,10 @@ static void octeon_usb_urb_complete_callback(struct cvmx_usb_state *usb,
  * @complete_code:
  *		 Completion code
  */
-static void __cvmx_usb_perform_complete(
-				struct cvmx_usb_state *usb,
-				struct cvmx_usb_pipe *pipe,
-				struct cvmx_usb_transaction *transaction,
-				enum cvmx_usb_complete complete_code)
+static void cvmx_usb_perform_complete(struct cvmx_usb_state *usb,
+				      struct cvmx_usb_pipe *pipe,
+				      struct cvmx_usb_transaction *transaction,
+				      enum cvmx_usb_complete complete_code)
 {
 	/* If this was a split then clear our split in progress marker */
 	if (usb->active_split == transaction)
@@ -2296,7 +2150,7 @@ static void __cvmx_usb_perform_complete(
  *
  * Returns: Transaction or NULL on failure.
  */
-static struct cvmx_usb_transaction *__cvmx_usb_submit_transaction(
+static struct cvmx_usb_transaction *cvmx_usb_submit_transaction(
 				struct cvmx_usb_state *usb,
 				struct cvmx_usb_pipe *pipe,
 				enum cvmx_usb_transfer type,
@@ -2342,7 +2196,7 @@ static struct cvmx_usb_transaction *__cvmx_usb_submit_transaction(
 		 * We may need to schedule the pipe if this was the head of the
 		 * pipe.
 		 */
-		__cvmx_usb_schedule(usb, 0);
+		cvmx_usb_schedule(usb, 0);
 	}
 
 	return transaction;
@@ -2363,14 +2217,14 @@ static struct cvmx_usb_transaction *cvmx_usb_submit_bulk(
 						struct cvmx_usb_pipe *pipe,
 						struct urb *urb)
 {
-	return __cvmx_usb_submit_transaction(usb, pipe, CVMX_USB_TRANSFER_BULK,
-					     urb->transfer_dma,
-					     urb->transfer_buffer_length,
-					     0, /* control_header */
-					     0, /* iso_start_frame */
-					     0, /* iso_number_packets */
-					     NULL, /* iso_packets */
-					     urb);
+	return cvmx_usb_submit_transaction(usb, pipe, CVMX_USB_TRANSFER_BULK,
+					   urb->transfer_dma,
+					   urb->transfer_buffer_length,
+					   0, /* control_header */
+					   0, /* iso_start_frame */
+					   0, /* iso_number_packets */
+					   NULL, /* iso_packets */
+					   urb);
 }
 
 
@@ -2388,15 +2242,15 @@ static struct cvmx_usb_transaction *cvmx_usb_submit_interrupt(
 						struct cvmx_usb_pipe *pipe,
 						struct urb *urb)
 {
-	return __cvmx_usb_submit_transaction(usb, pipe,
-					     CVMX_USB_TRANSFER_INTERRUPT,
-					     urb->transfer_dma,
-					     urb->transfer_buffer_length,
-					     0, /* control_header */
-					     0, /* iso_start_frame */
-					     0, /* iso_number_packets */
-					     NULL, /* iso_packets */
-					     urb);
+	return cvmx_usb_submit_transaction(usb, pipe,
+					   CVMX_USB_TRANSFER_INTERRUPT,
+					   urb->transfer_dma,
+					   urb->transfer_buffer_length,
+					   0, /* control_header */
+					   0, /* iso_start_frame */
+					   0, /* iso_number_packets */
+					   NULL, /* iso_packets */
+					   urb);
 }
 
 
@@ -2421,14 +2275,14 @@ static struct cvmx_usb_transaction *cvmx_usb_submit_control(
 	if ((header->bRequestType & USB_DIR_IN) == 0)
 		buffer_length = le16_to_cpu(header->wLength);
 
-	return __cvmx_usb_submit_transaction(usb, pipe,
-					     CVMX_USB_TRANSFER_CONTROL,
-					     urb->transfer_dma, buffer_length,
-					     control_header,
-					     0, /* iso_start_frame */
-					     0, /* iso_number_packets */
-					     NULL, /* iso_packets */
-					     urb);
+	return cvmx_usb_submit_transaction(usb, pipe,
+					   CVMX_USB_TRANSFER_CONTROL,
+					   urb->transfer_dma, buffer_length,
+					   control_header,
+					   0, /* iso_start_frame */
+					   0, /* iso_number_packets */
+					   NULL, /* iso_packets */
+					   urb);
 }
 
 
@@ -2449,14 +2303,14 @@ static struct cvmx_usb_transaction *cvmx_usb_submit_isochronous(
 	struct cvmx_usb_iso_packet *packets;
 
 	packets = (struct cvmx_usb_iso_packet *) urb->setup_packet;
-	return __cvmx_usb_submit_transaction(usb, pipe,
-					     CVMX_USB_TRANSFER_ISOCHRONOUS,
-					     urb->transfer_dma,
-					     urb->transfer_buffer_length,
-					     0, /* control_header */
-					     urb->start_frame,
-					     urb->number_of_packets,
-					     packets, urb);
+	return cvmx_usb_submit_transaction(usb, pipe,
+					   CVMX_USB_TRANSFER_ISOCHRONOUS,
+					   urb->transfer_dma,
+					   urb->transfer_buffer_length,
+					   0, /* control_header */
+					   urb->start_frame,
+					   urb->number_of_packets,
+					   packets, urb);
 }
 
 
@@ -2482,15 +2336,15 @@ static int cvmx_usb_cancel(struct cvmx_usb_state *usb,
 	 * treat it special
 	 */
 	if (list_first_entry(&pipe->transactions, typeof(*transaction), node) ==
-	    transaction && (pipe->flags & __CVMX_USB_PIPE_FLAGS_SCHEDULED)) {
+	    transaction && (pipe->flags & CVMX_USB_PIPE_FLAGS_SCHEDULED)) {
 		union cvmx_usbcx_hccharx usbc_hcchar;
 
 		usb->pipe_for_channel[pipe->channel] = NULL;
-		pipe->flags &= ~__CVMX_USB_PIPE_FLAGS_SCHEDULED;
+		pipe->flags &= ~CVMX_USB_PIPE_FLAGS_SCHEDULED;
 
 		CVMX_SYNCW;
 
-		usbc_hcchar.u32 = __cvmx_usb_read_csr32(usb,
+		usbc_hcchar.u32 = cvmx_usb_read_csr32(usb,
 				CVMX_USBCX_HCCHARX(pipe->channel, usb->index));
 		/*
 		 * If the channel isn't enabled then the transaction already
@@ -2498,14 +2352,14 @@ static int cvmx_usb_cancel(struct cvmx_usb_state *usb,
 		 */
 		if (usbc_hcchar.s.chena) {
 			usbc_hcchar.s.chdis = 1;
-			__cvmx_usb_write_csr32(usb,
+			cvmx_usb_write_csr32(usb,
 					CVMX_USBCX_HCCHARX(pipe->channel,
 						usb->index),
 					usbc_hcchar.u32);
 		}
 	}
-	__cvmx_usb_perform_complete(usb, pipe, transaction,
-				    CVMX_USB_COMPLETE_CANCEL);
+	cvmx_usb_perform_complete(usb, pipe, transaction,
+				  CVMX_USB_COMPLETE_CANCEL);
 	return 0;
 }
 
@@ -2570,8 +2424,7 @@ static int cvmx_usb_get_frame_number(struct cvmx_usb_state *usb)
 	int frame_number;
 	union cvmx_usbcx_hfnum usbc_hfnum;
 
-	usbc_hfnum.u32 = __cvmx_usb_read_csr32(usb,
-			CVMX_USBCX_HFNUM(usb->index));
+	usbc_hfnum.u32 = cvmx_usb_read_csr32(usb, CVMX_USBCX_HFNUM(usb->index));
 	frame_number = usbc_hfnum.s.frnum;
 
 	return frame_number;
@@ -2586,7 +2439,7 @@ static int cvmx_usb_get_frame_number(struct cvmx_usb_state *usb)
  *
  * Returns: Zero on success
  */
-static int __cvmx_usb_poll_channel(struct cvmx_usb_state *usb, int channel)
+static int cvmx_usb_poll_channel(struct cvmx_usb_state *usb, int channel)
 {
 	struct octeon_hcd *priv = cvmx_usb_to_octeon(usb);
 	struct usb_hcd *hcd = octeon_to_hcd(priv);
@@ -2602,11 +2455,11 @@ static int __cvmx_usb_poll_channel(struct cvmx_usb_state *usb, int channel)
 	int buffer_space_left;
 
 	/* Read the interrupt status bits for the channel */
-	usbc_hcint.u32 = __cvmx_usb_read_csr32(usb,
-			CVMX_USBCX_HCINTX(channel, usb->index));
+	usbc_hcint.u32 = cvmx_usb_read_csr32(usb,
+				CVMX_USBCX_HCINTX(channel, usb->index));
 
 	if (usb->init_flags & CVMX_USB_INITIALIZE_FLAGS_NO_DMA) {
-		usbc_hcchar.u32 = __cvmx_usb_read_csr32(usb,
+		usbc_hcchar.u32 = cvmx_usb_read_csr32(usb,
 				CVMX_USBCX_HCCHARX(channel, usb->index));
 
 		if (usbc_hcchar.s.chena && usbc_hcchar.s.chdis) {
@@ -2615,7 +2468,7 @@ static int __cvmx_usb_poll_channel(struct cvmx_usb_state *usb, int channel)
 			 * interrupt IN transfers to get stuck until we do a
 			 * write of HCCHARX without changing things
 			 */
-			__cvmx_usb_write_csr32(usb,
+			cvmx_usb_write_csr32(usb,
 					CVMX_USBCX_HCCHARX(channel,
 							   usb->index),
 					usbc_hcchar.u32);
@@ -2632,12 +2485,12 @@ static int __cvmx_usb_poll_channel(struct cvmx_usb_state *usb, int channel)
 				/* Disable all interrupts except CHHLTD */
 				hcintmsk.u32 = 0;
 				hcintmsk.s.chhltdmsk = 1;
-				__cvmx_usb_write_csr32(usb,
+				cvmx_usb_write_csr32(usb,
 						CVMX_USBCX_HCINTMSKX(channel,
 							usb->index),
 						hcintmsk.u32);
 				usbc_hcchar.s.chdis = 1;
-				__cvmx_usb_write_csr32(usb,
+				cvmx_usb_write_csr32(usb,
 						CVMX_USBCX_HCCHARX(channel,
 							usb->index),
 						usbc_hcchar.u32);
@@ -2663,9 +2516,7 @@ static int __cvmx_usb_poll_channel(struct cvmx_usb_state *usb, int channel)
 	}
 
 	/* Disable the channel interrupts now that it is done */
-	__cvmx_usb_write_csr32(usb,
-				CVMX_USBCX_HCINTMSKX(channel, usb->index),
-				0);
+	cvmx_usb_write_csr32(usb, CVMX_USBCX_HCINTMSKX(channel, usb->index), 0);
 	usb->idle_hardware_channels |= (1<<channel);
 
 	/* Make sure this channel is tied to a valid pipe */
@@ -2683,15 +2534,15 @@ static int __cvmx_usb_poll_channel(struct cvmx_usb_state *usb, int channel)
 	 * function will figure out which pipe needs to go
 	 */
 	usb->pipe_for_channel[channel] = NULL;
-	pipe->flags &= ~__CVMX_USB_PIPE_FLAGS_SCHEDULED;
+	pipe->flags &= ~CVMX_USB_PIPE_FLAGS_SCHEDULED;
 
 	/*
 	 * Read the channel config info so we can figure out how much data
 	 * transferred
 	 */
-	usbc_hcchar.u32 = __cvmx_usb_read_csr32(usb,
+	usbc_hcchar.u32 = cvmx_usb_read_csr32(usb,
 			CVMX_USBCX_HCCHARX(channel, usb->index));
-	usbc_hctsiz.u32 = __cvmx_usb_read_csr32(usb,
+	usbc_hctsiz.u32 = cvmx_usb_read_csr32(usb,
 			CVMX_USBCX_HCTSIZX(channel, usb->index));
 
 	/*
@@ -2766,7 +2617,18 @@ static int __cvmx_usb_poll_channel(struct cvmx_usb_state *usb, int channel)
 	if ((pipe->device_speed == CVMX_USB_SPEED_HIGH) &&
 		(pipe->transfer_type == CVMX_USB_TRANSFER_BULK) &&
 		(pipe->transfer_dir == CVMX_USB_DIRECTION_OUT))
-		pipe->flags |= __CVMX_USB_PIPE_FLAGS_NEED_PING;
+		pipe->flags |= CVMX_USB_PIPE_FLAGS_NEED_PING;
+
+	if (unlikely(WARN_ON_ONCE(bytes_this_transfer < 0))) {
+		/*
+		 * In some rare cases the DMA engine seems to get stuck and
+		 * keeps substracting same byte count over and over again. In
+		 * such case we just need to fail every transaction.
+		 */
+		cvmx_usb_perform_complete(usb, pipe, transaction,
+					  CVMX_USB_COMPLETE_ERROR);
+		return 0;
+	}
 
 	if (usbc_hcint.s.stall) {
 		/*
@@ -2776,52 +2638,24 @@ static int __cvmx_usb_poll_channel(struct cvmx_usb_state *usb, int channel)
 		 * the actual bytes transferred
 		 */
 		pipe->pid_toggle = 0;
-		__cvmx_usb_perform_complete(usb, pipe, transaction,
-					    CVMX_USB_COMPLETE_STALL);
+		cvmx_usb_perform_complete(usb, pipe, transaction,
+					  CVMX_USB_COMPLETE_STALL);
 	} else if (usbc_hcint.s.xacterr) {
 		/*
-		 * We know at least one packet worked if we get a ACK or NAK.
-		 * Reset the retry counter
+		 * XactErr as a response means the device signaled
+		 * something wrong with the transfer. For example, PID
+		 * toggle errors cause these.
 		 */
-		if (usbc_hcint.s.nak || usbc_hcint.s.ack)
-			transaction->retries = 0;
-		transaction->retries++;
-		if (transaction->retries > MAX_RETRIES) {
-			/*
-			 * XactErr as a response means the device signaled
-			 * something wrong with the transfer. For example, PID
-			 * toggle errors cause these
-			 */
-			__cvmx_usb_perform_complete(usb, pipe, transaction,
-						    CVMX_USB_COMPLETE_XACTERR);
-		} else {
-			/*
-			 * If this was a split then clear our split in progress
-			 * marker
-			 */
-			if (usb->active_split == transaction)
-				usb->active_split = NULL;
-			/*
-			 * Rewind to the beginning of the transaction by anding
-			 * off the split complete bit
-			 */
-			transaction->stage &= ~1;
-			pipe->split_sc_frame = -1;
-			pipe->next_tx_frame += pipe->interval;
-			if (pipe->next_tx_frame < usb->frame_number)
-				pipe->next_tx_frame =
-					usb->frame_number + pipe->interval -
-					(usb->frame_number -
-					 pipe->next_tx_frame) % pipe->interval;
-		}
+		cvmx_usb_perform_complete(usb, pipe, transaction,
+					  CVMX_USB_COMPLETE_XACTERR);
 	} else if (usbc_hcint.s.bblerr) {
 		/* Babble Error (BblErr) */
-		__cvmx_usb_perform_complete(usb, pipe, transaction,
-					    CVMX_USB_COMPLETE_BABBLEERR);
+		cvmx_usb_perform_complete(usb, pipe, transaction,
+					  CVMX_USB_COMPLETE_BABBLEERR);
 	} else if (usbc_hcint.s.datatglerr) {
 		/* Data toggle error */
-		__cvmx_usb_perform_complete(usb, pipe, transaction,
-					    CVMX_USB_COMPLETE_DATATGLERR);
+		cvmx_usb_perform_complete(usb, pipe, transaction,
+					  CVMX_USB_COMPLETE_DATATGLERR);
 	} else if (usbc_hcint.s.nyet) {
 		/*
 		 * NYET as a response is only allowed in three cases: as a
@@ -2829,7 +2663,7 @@ static int __cvmx_usb_poll_channel(struct cvmx_usb_state *usb, int channel)
 		 * as a response to a bulk out. The ping case is handled by
 		 * hardware, so we only have splits and bulk out
 		 */
-		if (!__cvmx_usb_pipe_needs_split(usb, pipe)) {
+		if (!cvmx_usb_pipe_needs_split(usb, pipe)) {
 			transaction->retries = 0;
 			/*
 			 * If there is more data to go then we need to try
@@ -2837,7 +2671,7 @@ static int __cvmx_usb_poll_channel(struct cvmx_usb_state *usb, int channel)
 			 */
 			if ((buffer_space_left == 0) ||
 				(bytes_in_last_packet < pipe->max_packet))
-				__cvmx_usb_perform_complete(usb, pipe,
+				cvmx_usb_perform_complete(usb, pipe,
 						transaction,
 						CVMX_USB_COMPLETE_SUCCESS);
 		} else {
@@ -2869,7 +2703,7 @@ static int __cvmx_usb_poll_channel(struct cvmx_usb_state *usb, int channel)
 		 * Since we got an ACK, we know we don't need to do a ping on
 		 * this pipe
 		 */
-		pipe->flags &= ~__CVMX_USB_PIPE_FLAGS_NEED_PING;
+		pipe->flags &= ~CVMX_USB_PIPE_FLAGS_NEED_PING;
 
 		switch (transaction->type) {
 		case CVMX_USB_TRANSFER_CONTROL:
@@ -2877,12 +2711,12 @@ static int __cvmx_usb_poll_channel(struct cvmx_usb_state *usb, int channel)
 			case CVMX_USB_STAGE_NON_CONTROL:
 			case CVMX_USB_STAGE_NON_CONTROL_SPLIT_COMPLETE:
 				/* This should be impossible */
-				__cvmx_usb_perform_complete(usb, pipe,
+				cvmx_usb_perform_complete(usb, pipe,
 					transaction, CVMX_USB_COMPLETE_ERROR);
 				break;
 			case CVMX_USB_STAGE_SETUP:
 				pipe->pid_toggle = 1;
-				if (__cvmx_usb_pipe_needs_split(usb, pipe))
+				if (cvmx_usb_pipe_needs_split(usb, pipe))
 					transaction->stage =
 						CVMX_USB_STAGE_SETUP_SPLIT_COMPLETE;
 				else {
@@ -2909,7 +2743,7 @@ static int __cvmx_usb_poll_channel(struct cvmx_usb_state *usb, int channel)
 				}
 				break;
 			case CVMX_USB_STAGE_DATA:
-				if (__cvmx_usb_pipe_needs_split(usb, pipe)) {
+				if (cvmx_usb_pipe_needs_split(usb, pipe)) {
 					transaction->stage =
 						CVMX_USB_STAGE_DATA_SPLIT_COMPLETE;
 					/*
@@ -2947,16 +2781,16 @@ static int __cvmx_usb_poll_channel(struct cvmx_usb_state *usb, int channel)
 				}
 				break;
 			case CVMX_USB_STAGE_STATUS:
-				if (__cvmx_usb_pipe_needs_split(usb, pipe))
+				if (cvmx_usb_pipe_needs_split(usb, pipe))
 					transaction->stage =
 						CVMX_USB_STAGE_STATUS_SPLIT_COMPLETE;
 				else
-					__cvmx_usb_perform_complete(usb, pipe,
+					cvmx_usb_perform_complete(usb, pipe,
 						transaction,
 						CVMX_USB_COMPLETE_SUCCESS);
 				break;
 			case CVMX_USB_STAGE_STATUS_SPLIT_COMPLETE:
-				__cvmx_usb_perform_complete(usb, pipe,
+				cvmx_usb_perform_complete(usb, pipe,
 						transaction,
 						CVMX_USB_COMPLETE_SUCCESS);
 				break;
@@ -2970,7 +2804,7 @@ static int __cvmx_usb_poll_channel(struct cvmx_usb_state *usb, int channel)
 			 * For splits we need to continue the transfer if more
 			 * data is needed
 			 */
-			if (__cvmx_usb_pipe_needs_split(usb, pipe)) {
+			if (cvmx_usb_pipe_needs_split(usb, pipe)) {
 				if (transaction->stage ==
 						CVMX_USB_STAGE_NON_CONTROL)
 					transaction->stage =
@@ -2986,7 +2820,7 @@ static int __cvmx_usb_poll_channel(struct cvmx_usb_state *usb, int channel)
 							CVMX_USB_TRANSFER_INTERRUPT)
 							pipe->next_tx_frame +=
 								pipe->interval;
-							__cvmx_usb_perform_complete(
+							cvmx_usb_perform_complete(
 								usb,
 								pipe,
 								transaction,
@@ -3002,7 +2836,7 @@ static int __cvmx_usb_poll_channel(struct cvmx_usb_state *usb, int channel)
 				     CVMX_USB_DIRECTION_OUT) &&
 				    (usbc_hcint.s.nak))
 					pipe->flags |=
-						__CVMX_USB_PIPE_FLAGS_NEED_PING;
+						CVMX_USB_PIPE_FLAGS_NEED_PING;
 				if (!buffer_space_left ||
 					(bytes_in_last_packet <
 					 pipe->max_packet)) {
@@ -3010,15 +2844,14 @@ static int __cvmx_usb_poll_channel(struct cvmx_usb_state *usb, int channel)
 						CVMX_USB_TRANSFER_INTERRUPT)
 						pipe->next_tx_frame +=
 							pipe->interval;
-					__cvmx_usb_perform_complete(usb,
-						pipe,
+					cvmx_usb_perform_complete(usb, pipe,
 						transaction,
 						CVMX_USB_COMPLETE_SUCCESS);
 				}
 			}
 			break;
 		case CVMX_USB_TRANSFER_ISOCHRONOUS:
-			if (__cvmx_usb_pipe_needs_split(usb, pipe)) {
+			if (cvmx_usb_pipe_needs_split(usb, pipe)) {
 				/*
 				 * ISOCHRONOUS OUT splits don't require a
 				 * complete split stage. Instead they use a
@@ -3039,10 +2872,8 @@ static int __cvmx_usb_poll_channel(struct cvmx_usb_state *usb, int channel)
 						(bytes_this_transfer < 188)) {
 						pipe->next_tx_frame +=
 							pipe->interval;
-						__cvmx_usb_perform_complete(
-							usb,
-							pipe,
-							transaction,
+						cvmx_usb_perform_complete(usb,
+							pipe, transaction,
 							CVMX_USB_COMPLETE_SUCCESS);
 					}
 				} else {
@@ -3059,7 +2890,7 @@ static int __cvmx_usb_poll_channel(struct cvmx_usb_state *usb, int channel)
 							 pipe->max_packet)) {
 							pipe->next_tx_frame +=
 								pipe->interval;
-							__cvmx_usb_perform_complete(
+							cvmx_usb_perform_complete(
 								usb,
 								pipe,
 								transaction,
@@ -3071,8 +2902,7 @@ static int __cvmx_usb_poll_channel(struct cvmx_usb_state *usb, int channel)
 				}
 			} else {
 				pipe->next_tx_frame += pipe->interval;
-				__cvmx_usb_perform_complete(usb,
-						pipe,
+				cvmx_usb_perform_complete(usb, pipe,
 						transaction,
 						CVMX_USB_COMPLETE_SUCCESS);
 			}
@@ -3110,7 +2940,7 @@ static int __cvmx_usb_poll_channel(struct cvmx_usb_state *usb, int channel)
 			 * We get channel halted interrupts with no result bits
 			 * sets when the cable is unplugged
 			 */
-			__cvmx_usb_perform_complete(usb, pipe, transaction,
+			cvmx_usb_perform_complete(usb, pipe, transaction,
 					CVMX_USB_COMPLETE_ERROR);
 		}
 	}
@@ -3144,21 +2974,19 @@ static int cvmx_usb_poll(struct cvmx_usb_state *usb)
 	prefetch_range(usb, sizeof(*usb));
 
 	/* Update the frame counter */
-	usbc_hfnum.u32 = __cvmx_usb_read_csr32(usb,
-						CVMX_USBCX_HFNUM(usb->index));
+	usbc_hfnum.u32 = cvmx_usb_read_csr32(usb, CVMX_USBCX_HFNUM(usb->index));
 	if ((usb->frame_number&0x3fff) > usbc_hfnum.s.frnum)
 		usb->frame_number += 0x4000;
 	usb->frame_number &= ~0x3fffull;
 	usb->frame_number |= usbc_hfnum.s.frnum;
 
 	/* Read the pending interrupts */
-	usbc_gintsts.u32 = __cvmx_usb_read_csr32(usb,
-						CVMX_USBCX_GINTSTS(usb->index));
+	usbc_gintsts.u32 = cvmx_usb_read_csr32(usb,
+					       CVMX_USBCX_GINTSTS(usb->index));
 
 	/* Clear the interrupts now that we know about them */
-	__cvmx_usb_write_csr32(usb,
-				CVMX_USBCX_GINTSTS(usb->index),
-				usbc_gintsts.u32);
+	cvmx_usb_write_csr32(usb, CVMX_USBCX_GINTSTS(usb->index),
+			     usbc_gintsts.u32);
 
 	if (usbc_gintsts.s.rxflvl) {
 		/*
@@ -3169,12 +2997,12 @@ static int cvmx_usb_poll(struct cvmx_usb_state *usb)
 		 * In DMA mode this is handled by hardware
 		 */
 		if (usb->init_flags & CVMX_USB_INITIALIZE_FLAGS_NO_DMA)
-			__cvmx_usb_poll_rx_fifo(usb);
+			cvmx_usb_poll_rx_fifo(usb);
 	}
 	if (usbc_gintsts.s.ptxfemp || usbc_gintsts.s.nptxfemp) {
 		/* Fill the Tx FIFOs when not in DMA mode */
 		if (usb->init_flags & CVMX_USB_INITIALIZE_FLAGS_NO_DMA)
-			__cvmx_usb_poll_tx_fifo(usb);
+			cvmx_usb_poll_tx_fifo(usb);
 	}
 	if (usbc_gintsts.s.disconnint || usbc_gintsts.s.prtint) {
 		union cvmx_usbcx_hprt usbc_hprt;
@@ -3194,11 +3022,11 @@ static int cvmx_usb_poll(struct cvmx_usb_state *usb)
 		 */
 		octeon_usb_port_callback(usb);
 		/* Clear the port change bits */
-		usbc_hprt.u32 = __cvmx_usb_read_csr32(usb,
-				CVMX_USBCX_HPRT(usb->index));
+		usbc_hprt.u32 = cvmx_usb_read_csr32(usb,
+					CVMX_USBCX_HPRT(usb->index));
 		usbc_hprt.s.prtena = 0;
-		__cvmx_usb_write_csr32(usb, CVMX_USBCX_HPRT(usb->index),
-				       usbc_hprt.u32);
+		cvmx_usb_write_csr32(usb, CVMX_USBCX_HPRT(usb->index),
+				     usbc_hprt.u32);
 	}
 	if (usbc_gintsts.s.hchint) {
 		/*
@@ -3215,18 +3043,18 @@ static int cvmx_usb_poll(struct cvmx_usb_state *usb)
 		 */
 		union cvmx_usbcx_haint usbc_haint;
 
-		usbc_haint.u32 = __cvmx_usb_read_csr32(usb,
+		usbc_haint.u32 = cvmx_usb_read_csr32(usb,
 					CVMX_USBCX_HAINT(usb->index));
 		while (usbc_haint.u32) {
 			int channel;
 
 			channel = __fls(usbc_haint.u32);
-			__cvmx_usb_poll_channel(usb, channel);
+			cvmx_usb_poll_channel(usb, channel);
 			usbc_haint.u32 ^= 1<<channel;
 		}
 	}
 
-	__cvmx_usb_schedule(usb, usbc_gintsts.s.sof);
+	cvmx_usb_schedule(usb, usbc_gintsts.s.sof);
 
 	return 0;
 }
@@ -3510,6 +3338,7 @@ static int octeon_usb_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
 	struct octeon_hcd *priv = hcd_to_octeon(hcd);
 	struct device *dev = hcd->self.controller;
 	struct cvmx_usb_port_status usb_port_status;
+	struct cvmx_usb_state *usb = &priv->usb;
 	int port_status;
 	struct usb_hub_descriptor *desc;
 	unsigned long flags;
@@ -3687,13 +3516,18 @@ static int octeon_usb_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
 			return -EINVAL;
 		case USB_PORT_FEAT_POWER:
 			dev_dbg(dev, " POWER\n");
-			return -EINVAL;
+			/*
+			 * Program the port power bit to drive VBUS on the USB.
+			 */
+			spin_lock_irqsave(&priv->lock, flags);
+			USB_SET_FIELD32(CVMX_USBCX_HPRT(usb->index),
+					cvmx_usbcx_hprt, prtpwr, 1);
+			spin_unlock_irqrestore(&priv->lock, flags);
+			return 0;
 		case USB_PORT_FEAT_RESET:
 			dev_dbg(dev, " RESET\n");
 			spin_lock_irqsave(&priv->lock, flags);
-			cvmx_usb_disable(&priv->usb);
-			if (cvmx_usb_enable(&priv->usb))
-				dev_dbg(dev, "Failed to enable the port\n");
+			cvmx_usb_reset_port(&priv->usb);
 			spin_unlock_irqrestore(&priv->lock, flags);
 			return 0;
 		case USB_PORT_FEAT_INDICATOR:
@@ -3741,7 +3575,6 @@ static int octeon_usb_probe(struct platform_device *pdev)
 	struct device *dev = &pdev->dev;
 	struct octeon_hcd *priv;
 	struct usb_hcd *hcd;
-	unsigned long flags;
 	u32 clock_rate = 48000000;
 	bool is_crystal_clock = false;
 	const char *clock_type;
@@ -3838,20 +3671,33 @@ static int octeon_usb_probe(struct platform_device *pdev)
 
 	spin_lock_init(&priv->lock);
 
-	status = cvmx_usb_initialize(&priv->usb, usb_num, initialize_flags);
+	priv->usb.init_flags = initialize_flags;
+
+	/* Initialize the USB state structure */
+	priv->usb.index = usb_num;
+	INIT_LIST_HEAD(&priv->usb.idle_pipes);
+	for (i = 0; i < ARRAY_SIZE(priv->usb.active_pipes); i++)
+		INIT_LIST_HEAD(&priv->usb.active_pipes[i]);
+
+	/* Due to an errata, CN31XX doesn't support DMA */
+	if (OCTEON_IS_MODEL(OCTEON_CN31XX)) {
+		priv->usb.init_flags |= CVMX_USB_INITIALIZE_FLAGS_NO_DMA;
+		/* Only use one channel with non DMA */
+		priv->usb.idle_hardware_channels = 0x1;
+	} else if (OCTEON_IS_MODEL(OCTEON_CN5XXX)) {
+		/* CN5XXX have an errata with channel 3 */
+		priv->usb.idle_hardware_channels = 0xf7;
+	} else {
+		priv->usb.idle_hardware_channels = 0xff;
+	}
+
+	status = cvmx_usb_initialize(dev, &priv->usb);
 	if (status) {
 		dev_dbg(dev, "USB initialization failed with %d\n", status);
 		kfree(hcd);
 		return -1;
 	}
 
-	/* This delay is needed for CN3010, but I don't know why... */
-	mdelay(10);
-
-	spin_lock_irqsave(&priv->lock, flags);
-	cvmx_usb_poll(&priv->usb);
-	spin_unlock_irqrestore(&priv->lock, flags);
-
 	status = usb_add_hcd(hcd, irq, 0);
 	if (status) {
 		dev_dbg(dev, "USB add HCD failed with %d\n", status);
@@ -3885,7 +3731,7 @@ static int octeon_usb_remove(struct platform_device *pdev)
 	return 0;
 }
 
-static struct of_device_id octeon_usb_match[] = {
+static const struct of_device_id octeon_usb_match[] = {
 	{
 		.compatible = "cavium,octeon-5750-usbc",
 	},
diff --git a/drivers/staging/octeon-usb/octeon-hcd.h b/drivers/staging/octeon-usb/octeon-hcd.h
index 42fe4fe..3e351ab 100644
--- a/drivers/staging/octeon-usb/octeon-hcd.h
+++ b/drivers/staging/octeon-usb/octeon-hcd.h
@@ -47,6 +47,8 @@
 #ifndef __OCTEON_HCD_H__
 #define __OCTEON_HCD_H__
 
+#include <asm/bitfield.h>
+
 #define CVMX_USBCXBASE 0x00016F0010000000ull
 #define CVMX_USBCXREG1(reg, bid) \
 	(CVMX_ADD_IO_SEG(CVMX_USBCXBASE | reg) + \
@@ -143,13 +145,14 @@ union cvmx_usbcx_gahbcfg {
 	 *	* 1'b1: Unmask the interrupt assertion to the application.
 	 */
 	struct cvmx_usbcx_gahbcfg_s {
-		uint32_t reserved_9_31	: 23;
-		uint32_t ptxfemplvl	: 1;
-		uint32_t nptxfemplvl	: 1;
-		uint32_t reserved_6_6	: 1;
-		uint32_t dmaen		: 1;
-		uint32_t hbstlen	: 4;
-		uint32_t glblintrmsk	: 1;
+		__BITFIELD_FIELD(uint32_t reserved_9_31	: 23,
+		__BITFIELD_FIELD(uint32_t ptxfemplvl	: 1,
+		__BITFIELD_FIELD(uint32_t nptxfemplvl	: 1,
+		__BITFIELD_FIELD(uint32_t reserved_6_6	: 1,
+		__BITFIELD_FIELD(uint32_t dmaen		: 1,
+		__BITFIELD_FIELD(uint32_t hbstlen	: 4,
+		__BITFIELD_FIELD(uint32_t glblintrmsk	: 1,
+		;)))))))
 	} s;
 };
 
@@ -209,16 +212,17 @@ union cvmx_usbcx_ghwcfg3 {
 	 *	* Others: Reserved
 	 */
 	struct cvmx_usbcx_ghwcfg3_s {
-		uint32_t dfifodepth				: 16;
-		uint32_t reserved_13_15				: 3;
-		uint32_t ahbphysync				: 1;
-		uint32_t rsttype				: 1;
-		uint32_t optfeature				: 1;
-		uint32_t vendor_control_interface_support	: 1;
-		uint32_t i2c_selection				: 1;
-		uint32_t otgen					: 1;
-		uint32_t pktsizewidth				: 3;
-		uint32_t xfersizewidth				: 4;
+		__BITFIELD_FIELD(uint32_t dfifodepth			: 16,
+		__BITFIELD_FIELD(uint32_t reserved_13_15		: 3,
+		__BITFIELD_FIELD(uint32_t ahbphysync			: 1,
+		__BITFIELD_FIELD(uint32_t rsttype			: 1,
+		__BITFIELD_FIELD(uint32_t optfeature			: 1,
+		__BITFIELD_FIELD(uint32_t vendor_control_interface_support : 1,
+		__BITFIELD_FIELD(uint32_t i2c_selection			: 1,
+		__BITFIELD_FIELD(uint32_t otgen				: 1,
+		__BITFIELD_FIELD(uint32_t pktsizewidth			: 3,
+		__BITFIELD_FIELD(uint32_t xfersizewidth			: 4,
+		;))))))))))
 	} s;
 };
 
@@ -275,38 +279,39 @@ union cvmx_usbcx_gintmsk {
 	 * @modemismsk: Mode Mismatch Interrupt Mask (ModeMisMsk)
 	 */
 	struct cvmx_usbcx_gintmsk_s {
-		uint32_t wkupintmsk		: 1;
-		uint32_t sessreqintmsk		: 1;
-		uint32_t disconnintmsk		: 1;
-		uint32_t conidstschngmsk	: 1;
-		uint32_t reserved_27_27		: 1;
-		uint32_t ptxfempmsk		: 1;
-		uint32_t hchintmsk		: 1;
-		uint32_t prtintmsk		: 1;
-		uint32_t reserved_23_23		: 1;
-		uint32_t fetsuspmsk		: 1;
-		uint32_t incomplpmsk		: 1;
-		uint32_t incompisoinmsk		: 1;
-		uint32_t oepintmsk		: 1;
-		uint32_t inepintmsk		: 1;
-		uint32_t epmismsk		: 1;
-		uint32_t reserved_16_16		: 1;
-		uint32_t eopfmsk		: 1;
-		uint32_t isooutdropmsk		: 1;
-		uint32_t enumdonemsk		: 1;
-		uint32_t usbrstmsk		: 1;
-		uint32_t usbsuspmsk		: 1;
-		uint32_t erlysuspmsk		: 1;
-		uint32_t i2cint			: 1;
-		uint32_t ulpickintmsk		: 1;
-		uint32_t goutnakeffmsk		: 1;
-		uint32_t ginnakeffmsk		: 1;
-		uint32_t nptxfempmsk		: 1;
-		uint32_t rxflvlmsk		: 1;
-		uint32_t sofmsk			: 1;
-		uint32_t otgintmsk		: 1;
-		uint32_t modemismsk		: 1;
-		uint32_t reserved_0_0		: 1;
+		__BITFIELD_FIELD(uint32_t wkupintmsk		: 1,
+		__BITFIELD_FIELD(uint32_t sessreqintmsk		: 1,
+		__BITFIELD_FIELD(uint32_t disconnintmsk		: 1,
+		__BITFIELD_FIELD(uint32_t conidstschngmsk	: 1,
+		__BITFIELD_FIELD(uint32_t reserved_27_27	: 1,
+		__BITFIELD_FIELD(uint32_t ptxfempmsk		: 1,
+		__BITFIELD_FIELD(uint32_t hchintmsk		: 1,
+		__BITFIELD_FIELD(uint32_t prtintmsk		: 1,
+		__BITFIELD_FIELD(uint32_t reserved_23_23	: 1,
+		__BITFIELD_FIELD(uint32_t fetsuspmsk		: 1,
+		__BITFIELD_FIELD(uint32_t incomplpmsk		: 1,
+		__BITFIELD_FIELD(uint32_t incompisoinmsk	: 1,
+		__BITFIELD_FIELD(uint32_t oepintmsk		: 1,
+		__BITFIELD_FIELD(uint32_t inepintmsk		: 1,
+		__BITFIELD_FIELD(uint32_t epmismsk		: 1,
+		__BITFIELD_FIELD(uint32_t reserved_16_16	: 1,
+		__BITFIELD_FIELD(uint32_t eopfmsk		: 1,
+		__BITFIELD_FIELD(uint32_t isooutdropmsk		: 1,
+		__BITFIELD_FIELD(uint32_t enumdonemsk		: 1,
+		__BITFIELD_FIELD(uint32_t usbrstmsk		: 1,
+		__BITFIELD_FIELD(uint32_t usbsuspmsk		: 1,
+		__BITFIELD_FIELD(uint32_t erlysuspmsk		: 1,
+		__BITFIELD_FIELD(uint32_t i2cint		: 1,
+		__BITFIELD_FIELD(uint32_t ulpickintmsk		: 1,
+		__BITFIELD_FIELD(uint32_t goutnakeffmsk		: 1,
+		__BITFIELD_FIELD(uint32_t ginnakeffmsk		: 1,
+		__BITFIELD_FIELD(uint32_t nptxfempmsk		: 1,
+		__BITFIELD_FIELD(uint32_t rxflvlmsk		: 1,
+		__BITFIELD_FIELD(uint32_t sofmsk		: 1,
+		__BITFIELD_FIELD(uint32_t otgintmsk		: 1,
+		__BITFIELD_FIELD(uint32_t modemismsk		: 1,
+		__BITFIELD_FIELD(uint32_t reserved_0_0		: 1,
+		;))))))))))))))))))))))))))))))))
 	} s;
 };
 
@@ -504,38 +509,39 @@ union cvmx_usbcx_gintsts {
 	 *	* 1'b1: Host mode
 	 */
 	struct cvmx_usbcx_gintsts_s {
-		uint32_t wkupint	: 1;
-		uint32_t sessreqint	: 1;
-		uint32_t disconnint	: 1;
-		uint32_t conidstschng	: 1;
-		uint32_t reserved_27_27	: 1;
-		uint32_t ptxfemp	: 1;
-		uint32_t hchint		: 1;
-		uint32_t prtint		: 1;
-		uint32_t reserved_23_23	: 1;
-		uint32_t fetsusp	: 1;
-		uint32_t incomplp	: 1;
-		uint32_t incompisoin	: 1;
-		uint32_t oepint		: 1;
-		uint32_t iepint		: 1;
-		uint32_t epmis		: 1;
-		uint32_t reserved_16_16	: 1;
-		uint32_t eopf		: 1;
-		uint32_t isooutdrop	: 1;
-		uint32_t enumdone	: 1;
-		uint32_t usbrst		: 1;
-		uint32_t usbsusp	: 1;
-		uint32_t erlysusp	: 1;
-		uint32_t i2cint		: 1;
-		uint32_t ulpickint	: 1;
-		uint32_t goutnakeff	: 1;
-		uint32_t ginnakeff	: 1;
-		uint32_t nptxfemp	: 1;
-		uint32_t rxflvl		: 1;
-		uint32_t sof		: 1;
-		uint32_t otgint		: 1;
-		uint32_t modemis	: 1;
-		uint32_t curmod		: 1;
+		__BITFIELD_FIELD(uint32_t wkupint		: 1,
+		__BITFIELD_FIELD(uint32_t sessreqint		: 1,
+		__BITFIELD_FIELD(uint32_t disconnint		: 1,
+		__BITFIELD_FIELD(uint32_t conidstschng		: 1,
+		__BITFIELD_FIELD(uint32_t reserved_27_27	: 1,
+		__BITFIELD_FIELD(uint32_t ptxfemp		: 1,
+		__BITFIELD_FIELD(uint32_t hchint		: 1,
+		__BITFIELD_FIELD(uint32_t prtint		: 1,
+		__BITFIELD_FIELD(uint32_t reserved_23_23	: 1,
+		__BITFIELD_FIELD(uint32_t fetsusp		: 1,
+		__BITFIELD_FIELD(uint32_t incomplp		: 1,
+		__BITFIELD_FIELD(uint32_t incompisoin		: 1,
+		__BITFIELD_FIELD(uint32_t oepint		: 1,
+		__BITFIELD_FIELD(uint32_t iepint		: 1,
+		__BITFIELD_FIELD(uint32_t epmis			: 1,
+		__BITFIELD_FIELD(uint32_t reserved_16_16	: 1,
+		__BITFIELD_FIELD(uint32_t eopf			: 1,
+		__BITFIELD_FIELD(uint32_t isooutdrop		: 1,
+		__BITFIELD_FIELD(uint32_t enumdone		: 1,
+		__BITFIELD_FIELD(uint32_t usbrst		: 1,
+		__BITFIELD_FIELD(uint32_t usbsusp		: 1,
+		__BITFIELD_FIELD(uint32_t erlysusp		: 1,
+		__BITFIELD_FIELD(uint32_t i2cint		: 1,
+		__BITFIELD_FIELD(uint32_t ulpickint		: 1,
+		__BITFIELD_FIELD(uint32_t goutnakeff		: 1,
+		__BITFIELD_FIELD(uint32_t ginnakeff		: 1,
+		__BITFIELD_FIELD(uint32_t nptxfemp		: 1,
+		__BITFIELD_FIELD(uint32_t rxflvl		: 1,
+		__BITFIELD_FIELD(uint32_t sof			: 1,
+		__BITFIELD_FIELD(uint32_t otgint		: 1,
+		__BITFIELD_FIELD(uint32_t modemis		: 1,
+		__BITFIELD_FIELD(uint32_t curmod		: 1,
+		;))))))))))))))))))))))))))))))))
 	} s;
 };
 
@@ -560,8 +566,9 @@ union cvmx_usbcx_gnptxfsiz {
 	 *	Transmit FIFO RAM.
 	 */
 	struct cvmx_usbcx_gnptxfsiz_s {
-		uint32_t nptxfdep	: 16;
-		uint32_t nptxfstaddr	: 16;
+		__BITFIELD_FIELD(uint32_t nptxfdep	: 16,
+		__BITFIELD_FIELD(uint32_t nptxfstaddr	: 16,
+		;))
 	} s;
 };
 
@@ -610,10 +617,11 @@ union cvmx_usbcx_gnptxsts {
 	 *	* Others: Reserved
 	 */
 	struct cvmx_usbcx_gnptxsts_s {
-		uint32_t reserved_31_31	: 1;
-		uint32_t nptxqtop	: 7;
-		uint32_t nptxqspcavail	: 8;
-		uint32_t nptxfspcavail	: 16;
+		__BITFIELD_FIELD(uint32_t reserved_31_31	: 1,
+		__BITFIELD_FIELD(uint32_t nptxqtop		: 7,
+		__BITFIELD_FIELD(uint32_t nptxqspcavail		: 8,
+		__BITFIELD_FIELD(uint32_t nptxfspcavail		: 16,
+		;))))
 	} s;
 };
 
@@ -731,16 +739,17 @@ union cvmx_usbcx_grstctl {
 	 *	selected, the PHY domain has to be reset for proper operation.
 	 */
 	struct cvmx_usbcx_grstctl_s {
-		uint32_t ahbidle	: 1;
-		uint32_t dmareq		: 1;
-		uint32_t reserved_11_29	: 19;
-		uint32_t txfnum		: 5;
-		uint32_t txfflsh	: 1;
-		uint32_t rxfflsh	: 1;
-		uint32_t intknqflsh	: 1;
-		uint32_t frmcntrrst	: 1;
-		uint32_t hsftrst	: 1;
-		uint32_t csftrst	: 1;
+		__BITFIELD_FIELD(uint32_t ahbidle		: 1,
+		__BITFIELD_FIELD(uint32_t dmareq		: 1,
+		__BITFIELD_FIELD(uint32_t reserved_11_29	: 19,
+		__BITFIELD_FIELD(uint32_t txfnum		: 5,
+		__BITFIELD_FIELD(uint32_t txfflsh		: 1,
+		__BITFIELD_FIELD(uint32_t rxfflsh		: 1,
+		__BITFIELD_FIELD(uint32_t intknqflsh		: 1,
+		__BITFIELD_FIELD(uint32_t frmcntrrst		: 1,
+		__BITFIELD_FIELD(uint32_t hsftrst		: 1,
+		__BITFIELD_FIELD(uint32_t csftrst		: 1,
+		;))))))))))
 	} s;
 };
 
@@ -762,8 +771,9 @@ union cvmx_usbcx_grxfsiz {
 	 *	* Maximum value is 32768
 	 */
 	struct cvmx_usbcx_grxfsiz_s {
-		uint32_t reserved_16_31	: 16;
-		uint32_t rxfdep		: 16;
+		__BITFIELD_FIELD(uint32_t reserved_16_31	: 16,
+		__BITFIELD_FIELD(uint32_t rxfdep		: 16,
+		;))
 	} s;
 };
 
@@ -804,11 +814,12 @@ union cvmx_usbcx_grxstsph {
 	 *	packet belongs.
 	 */
 	struct cvmx_usbcx_grxstsph_s {
-		uint32_t reserved_21_31	: 11;
-		uint32_t pktsts		: 4;
-		uint32_t dpid		: 2;
-		uint32_t bcnt		: 11;
-		uint32_t chnum		: 4;
+		__BITFIELD_FIELD(uint32_t reserved_21_31	: 11,
+		__BITFIELD_FIELD(uint32_t pktsts		: 4,
+		__BITFIELD_FIELD(uint32_t dpid			: 2,
+		__BITFIELD_FIELD(uint32_t bcnt			: 11,
+		__BITFIELD_FIELD(uint32_t chnum			: 4,
+		;)))))
 	} s;
 };
 
@@ -884,19 +895,20 @@ union cvmx_usbcx_gusbcfg {
 	 *	* One 48-MHz PHY clock = 0.25 bit times
 	 */
 	struct cvmx_usbcx_gusbcfg_s {
-		uint32_t reserved_17_31	: 15;
-		uint32_t otgi2csel	: 1;
-		uint32_t phylpwrclksel	: 1;
-		uint32_t reserved_14_14	: 1;
-		uint32_t usbtrdtim	: 4;
-		uint32_t hnpcap		: 1;
-		uint32_t srpcap		: 1;
-		uint32_t ddrsel		: 1;
-		uint32_t physel		: 1;
-		uint32_t fsintf		: 1;
-		uint32_t ulpi_utmi_sel	: 1;
-		uint32_t phyif		: 1;
-		uint32_t toutcal	: 3;
+		__BITFIELD_FIELD(uint32_t reserved_17_31	: 15,
+		__BITFIELD_FIELD(uint32_t otgi2csel		: 1,
+		__BITFIELD_FIELD(uint32_t phylpwrclksel		: 1,
+		__BITFIELD_FIELD(uint32_t reserved_14_14	: 1,
+		__BITFIELD_FIELD(uint32_t usbtrdtim		: 4,
+		__BITFIELD_FIELD(uint32_t hnpcap		: 1,
+		__BITFIELD_FIELD(uint32_t srpcap		: 1,
+		__BITFIELD_FIELD(uint32_t ddrsel		: 1,
+		__BITFIELD_FIELD(uint32_t physel		: 1,
+		__BITFIELD_FIELD(uint32_t fsintf		: 1,
+		__BITFIELD_FIELD(uint32_t ulpi_utmi_sel		: 1,
+		__BITFIELD_FIELD(uint32_t phyif			: 1,
+		__BITFIELD_FIELD(uint32_t toutcal		: 3,
+		;)))))))))))))
 	} s;
 };
 
@@ -920,8 +932,9 @@ union cvmx_usbcx_haint {
 	 *	One bit per channel: Bit 0 for Channel 0, bit 15 for Channel 15
 	 */
 	struct cvmx_usbcx_haint_s {
-		uint32_t reserved_16_31	: 16;
-		uint32_t haint		: 16;
+		__BITFIELD_FIELD(uint32_t reserved_16_31	: 16,
+		__BITFIELD_FIELD(uint32_t haint			: 16,
+		;))
 	} s;
 };
 
@@ -944,8 +957,9 @@ union cvmx_usbcx_haintmsk {
 	 *	One bit per channel: Bit 0 for channel 0, bit 15 for channel 15
 	 */
 	struct cvmx_usbcx_haintmsk_s {
-		uint32_t reserved_16_31	: 16;
-		uint32_t haintmsk	: 16;
+		__BITFIELD_FIELD(uint32_t reserved_16_31	: 16,
+		__BITFIELD_FIELD(uint32_t haintmsk		: 16,
+		;))
 	} s;
 };
 
@@ -1014,17 +1028,18 @@ union cvmx_usbcx_hccharx {
 	 *	Indicates the maximum packet size of the associated endpoint.
 	 */
 	struct cvmx_usbcx_hccharx_s {
-		uint32_t chena		: 1;
-		uint32_t chdis		: 1;
-		uint32_t oddfrm		: 1;
-		uint32_t devaddr	: 7;
-		uint32_t ec		: 2;
-		uint32_t eptype		: 2;
-		uint32_t lspddev	: 1;
-		uint32_t reserved_16_16	: 1;
-		uint32_t epdir		: 1;
-		uint32_t epnum		: 4;
-		uint32_t mps		: 11;
+		__BITFIELD_FIELD(uint32_t chena			: 1,
+		__BITFIELD_FIELD(uint32_t chdis			: 1,
+		__BITFIELD_FIELD(uint32_t oddfrm		: 1,
+		__BITFIELD_FIELD(uint32_t devaddr		: 7,
+		__BITFIELD_FIELD(uint32_t ec			: 2,
+		__BITFIELD_FIELD(uint32_t eptype		: 2,
+		__BITFIELD_FIELD(uint32_t lspddev		: 1,
+		__BITFIELD_FIELD(uint32_t reserved_16_16	: 1,
+		__BITFIELD_FIELD(uint32_t epdir			: 1,
+		__BITFIELD_FIELD(uint32_t epnum			: 4,
+		__BITFIELD_FIELD(uint32_t mps			: 11,
+		;)))))))))))
 	} s;
 };
 
@@ -1069,9 +1084,10 @@ union cvmx_usbcx_hcfg {
 	 *	* 2'b11: Reserved
 	 */
 	struct cvmx_usbcx_hcfg_s {
-		uint32_t reserved_3_31	: 29;
-		uint32_t fslssupp	: 1;
-		uint32_t fslspclksel	: 2;
+		__BITFIELD_FIELD(uint32_t reserved_3_31	: 29,
+		__BITFIELD_FIELD(uint32_t fslssupp	: 1,
+		__BITFIELD_FIELD(uint32_t fslspclksel	: 2,
+		;)))
 	} s;
 };
 
@@ -1110,18 +1126,19 @@ union cvmx_usbcx_hcintx {
 	 *	Transfer completed normally without any errors.
 	 */
 	struct cvmx_usbcx_hcintx_s {
-		uint32_t reserved_11_31	: 21;
-		uint32_t datatglerr	: 1;
-		uint32_t frmovrun	: 1;
-		uint32_t bblerr		: 1;
-		uint32_t xacterr	: 1;
-		uint32_t nyet		: 1;
-		uint32_t ack		: 1;
-		uint32_t nak		: 1;
-		uint32_t stall		: 1;
-		uint32_t ahberr		: 1;
-		uint32_t chhltd		: 1;
-		uint32_t xfercompl	: 1;
+		__BITFIELD_FIELD(uint32_t reserved_11_31	: 21,
+		__BITFIELD_FIELD(uint32_t datatglerr		: 1,
+		__BITFIELD_FIELD(uint32_t frmovrun		: 1,
+		__BITFIELD_FIELD(uint32_t bblerr		: 1,
+		__BITFIELD_FIELD(uint32_t xacterr		: 1,
+		__BITFIELD_FIELD(uint32_t nyet			: 1,
+		__BITFIELD_FIELD(uint32_t ack			: 1,
+		__BITFIELD_FIELD(uint32_t nak			: 1,
+		__BITFIELD_FIELD(uint32_t stall			: 1,
+		__BITFIELD_FIELD(uint32_t ahberr		: 1,
+		__BITFIELD_FIELD(uint32_t chhltd		: 1,
+		__BITFIELD_FIELD(uint32_t xfercompl		: 1,
+		;))))))))))))
 	} s;
 };
 
@@ -1151,18 +1168,19 @@ union cvmx_usbcx_hcintmskx {
 	 * @xfercomplmsk: Transfer Completed Mask (XferComplMsk)
 	 */
 	struct cvmx_usbcx_hcintmskx_s {
-		uint32_t reserved_11_31	: 21;
-		uint32_t datatglerrmsk	: 1;
-		uint32_t frmovrunmsk	: 1;
-		uint32_t bblerrmsk	: 1;
-		uint32_t xacterrmsk	: 1;
-		uint32_t nyetmsk	: 1;
-		uint32_t ackmsk		: 1;
-		uint32_t nakmsk		: 1;
-		uint32_t stallmsk	: 1;
-		uint32_t ahberrmsk	: 1;
-		uint32_t chhltdmsk	: 1;
-		uint32_t xfercomplmsk	: 1;
+		__BITFIELD_FIELD(uint32_t reserved_11_31		: 21,
+		__BITFIELD_FIELD(uint32_t datatglerrmsk			: 1,
+		__BITFIELD_FIELD(uint32_t frmovrunmsk			: 1,
+		__BITFIELD_FIELD(uint32_t bblerrmsk			: 1,
+		__BITFIELD_FIELD(uint32_t xacterrmsk			: 1,
+		__BITFIELD_FIELD(uint32_t nyetmsk			: 1,
+		__BITFIELD_FIELD(uint32_t ackmsk			: 1,
+		__BITFIELD_FIELD(uint32_t nakmsk			: 1,
+		__BITFIELD_FIELD(uint32_t stallmsk			: 1,
+		__BITFIELD_FIELD(uint32_t ahberrmsk			: 1,
+		__BITFIELD_FIELD(uint32_t chhltdmsk			: 1,
+		__BITFIELD_FIELD(uint32_t xfercomplmsk			: 1,
+		;))))))))))))
 	} s;
 };
 
@@ -1201,12 +1219,13 @@ union cvmx_usbcx_hcspltx {
 	 *	translator.
 	 */
 	struct cvmx_usbcx_hcspltx_s {
-		uint32_t spltena	: 1;
-		uint32_t reserved_17_30	: 14;
-		uint32_t compsplt	: 1;
-		uint32_t xactpos	: 2;
-		uint32_t hubaddr	: 7;
-		uint32_t prtaddr	: 7;
+		__BITFIELD_FIELD(uint32_t spltena			: 1,
+		__BITFIELD_FIELD(uint32_t reserved_17_30		: 14,
+		__BITFIELD_FIELD(uint32_t compsplt			: 1,
+		__BITFIELD_FIELD(uint32_t xactpos			: 2,
+		__BITFIELD_FIELD(uint32_t hubaddr			: 7,
+		__BITFIELD_FIELD(uint32_t prtaddr			: 7,
+		;))))))
 	} s;
 };
 
@@ -1246,10 +1265,11 @@ union cvmx_usbcx_hctsizx {
 	 *	size for IN transactions (periodic and non-periodic).
 	 */
 	struct cvmx_usbcx_hctsizx_s {
-		uint32_t dopng		: 1;
-		uint32_t pid		: 2;
-		uint32_t pktcnt		: 10;
-		uint32_t xfersize	: 19;
+		__BITFIELD_FIELD(uint32_t dopng			: 1,
+		__BITFIELD_FIELD(uint32_t pid			: 2,
+		__BITFIELD_FIELD(uint32_t pktcnt		: 10,
+		__BITFIELD_FIELD(uint32_t xfersize		: 19,
+		;))))
 	} s;
 };
 
@@ -1283,8 +1303,9 @@ union cvmx_usbcx_hfir {
 	 *	* 1 ms (PHY clock frequency for FS/LS)
 	 */
 	struct cvmx_usbcx_hfir_s {
-		uint32_t reserved_16_31	: 16;
-		uint32_t frint		: 16;
+		__BITFIELD_FIELD(uint32_t reserved_16_31		: 16,
+		__BITFIELD_FIELD(uint32_t frint				: 16,
+		;))
 	} s;
 };
 
@@ -1312,8 +1333,9 @@ union cvmx_usbcx_hfnum {
 	 *	USB, and is reset to 0 when it reaches 16'h3FFF.
 	 */
 	struct cvmx_usbcx_hfnum_s {
-		uint32_t frrem	: 16;
-		uint32_t frnum	: 16;
+		__BITFIELD_FIELD(uint32_t frrem		: 16,
+		__BITFIELD_FIELD(uint32_t frnum		: 16,
+		;))
 	} s;
 };
 
@@ -1439,21 +1461,22 @@ union cvmx_usbcx_hprt {
 	 *	* 1: A device is attached to the port.
 	 */
 	struct cvmx_usbcx_hprt_s {
-		uint32_t reserved_19_31	: 13;
-		uint32_t prtspd		: 2;
-		uint32_t prttstctl	: 4;
-		uint32_t prtpwr		: 1;
-		uint32_t prtlnsts	: 2;
-		uint32_t reserved_9_9	: 1;
-		uint32_t prtrst		: 1;
-		uint32_t prtsusp	: 1;
-		uint32_t prtres		: 1;
-		uint32_t prtovrcurrchng	: 1;
-		uint32_t prtovrcurract	: 1;
-		uint32_t prtenchng	: 1;
-		uint32_t prtena		: 1;
-		uint32_t prtconndet	: 1;
-		uint32_t prtconnsts	: 1;
+		__BITFIELD_FIELD(uint32_t reserved_19_31	: 13,
+		__BITFIELD_FIELD(uint32_t prtspd		: 2,
+		__BITFIELD_FIELD(uint32_t prttstctl		: 4,
+		__BITFIELD_FIELD(uint32_t prtpwr		: 1,
+		__BITFIELD_FIELD(uint32_t prtlnsts		: 2,
+		__BITFIELD_FIELD(uint32_t reserved_9_9		: 1,
+		__BITFIELD_FIELD(uint32_t prtrst		: 1,
+		__BITFIELD_FIELD(uint32_t prtsusp		: 1,
+		__BITFIELD_FIELD(uint32_t prtres		: 1,
+		__BITFIELD_FIELD(uint32_t prtovrcurrchng	: 1,
+		__BITFIELD_FIELD(uint32_t prtovrcurract		: 1,
+		__BITFIELD_FIELD(uint32_t prtenchng		: 1,
+		__BITFIELD_FIELD(uint32_t prtena		: 1,
+		__BITFIELD_FIELD(uint32_t prtconndet		: 1,
+		__BITFIELD_FIELD(uint32_t prtconnsts		: 1,
+		;)))))))))))))))
 	} s;
 };
 
@@ -1476,8 +1499,9 @@ union cvmx_usbcx_hptxfsiz {
 	 * @ptxfstaddr: Host Periodic TxFIFO Start Address (PTxFStAddr)
 	 */
 	struct cvmx_usbcx_hptxfsiz_s {
-		uint32_t ptxfsize	: 16;
-		uint32_t ptxfstaddr	: 16;
+		__BITFIELD_FIELD(uint32_t ptxfsize	: 16,
+		__BITFIELD_FIELD(uint32_t ptxfstaddr	: 16,
+		;))
 	} s;
 };
 
@@ -1531,9 +1555,10 @@ union cvmx_usbcx_hptxsts {
 	 *	* Others: Reserved
 	 */
 	struct cvmx_usbcx_hptxsts_s {
-		uint32_t ptxqtop	: 8;
-		uint32_t ptxqspcavail	: 8;
-		uint32_t ptxfspcavail	: 16;
+		__BITFIELD_FIELD(uint32_t ptxqtop	: 8,
+		__BITFIELD_FIELD(uint32_t ptxqspcavail	: 8,
+		__BITFIELD_FIELD(uint32_t ptxfspcavail	: 16,
+		;)))
 	} s;
 };
 
@@ -1636,21 +1661,22 @@ union cvmx_usbnx_clk_ctl {
 	 *	until AFTER this field is set and then read.
 	 */
 	struct cvmx_usbnx_clk_ctl_s {
-		uint64_t reserved_20_63	: 44;
-		uint64_t divide2	: 2;
-		uint64_t hclk_rst	: 1;
-		uint64_t p_x_on		: 1;
-		uint64_t p_rtype	: 2;
-		uint64_t p_com_on	: 1;
-		uint64_t p_c_sel	: 2;
-		uint64_t cdiv_byp	: 1;
-		uint64_t sd_mode	: 2;
-		uint64_t s_bist		: 1;
-		uint64_t por		: 1;
-		uint64_t enable		: 1;
-		uint64_t prst		: 1;
-		uint64_t hrst		: 1;
-		uint64_t divide		: 3;
+		__BITFIELD_FIELD(uint64_t reserved_20_63	: 44,
+		__BITFIELD_FIELD(uint64_t divide2		: 2,
+		__BITFIELD_FIELD(uint64_t hclk_rst		: 1,
+		__BITFIELD_FIELD(uint64_t p_x_on		: 1,
+		__BITFIELD_FIELD(uint64_t p_rtype		: 2,
+		__BITFIELD_FIELD(uint64_t p_com_on		: 1,
+		__BITFIELD_FIELD(uint64_t p_c_sel		: 2,
+		__BITFIELD_FIELD(uint64_t cdiv_byp		: 1,
+		__BITFIELD_FIELD(uint64_t sd_mode		: 2,
+		__BITFIELD_FIELD(uint64_t s_bist		: 1,
+		__BITFIELD_FIELD(uint64_t por			: 1,
+		__BITFIELD_FIELD(uint64_t enable		: 1,
+		__BITFIELD_FIELD(uint64_t prst			: 1,
+		__BITFIELD_FIELD(uint64_t hrst			: 1,
+		__BITFIELD_FIELD(uint64_t divide		: 3,
+		;)))))))))))))))
 	} s;
 };
 
@@ -1778,41 +1804,42 @@ union cvmx_usbnx_usbp_ctl_status {
 	 *	de-assertion.
 	 */
 	struct cvmx_usbnx_usbp_ctl_status_s {
-		uint64_t txrisetune		: 1;
-		uint64_t txvreftune		: 4;
-		uint64_t txfslstune		: 4;
-		uint64_t txhsxvtune		: 2;
-		uint64_t sqrxtune		: 3;
-		uint64_t compdistune		: 3;
-		uint64_t otgtune		: 3;
-		uint64_t otgdisable		: 1;
-		uint64_t portreset		: 1;
-		uint64_t drvvbus		: 1;
-		uint64_t lsbist			: 1;
-		uint64_t fsbist			: 1;
-		uint64_t hsbist			: 1;
-		uint64_t bist_done		: 1;
-		uint64_t bist_err		: 1;
-		uint64_t tdata_out		: 4;
-		uint64_t siddq			: 1;
-		uint64_t txpreemphasistune	: 1;
-		uint64_t dma_bmode		: 1;
-		uint64_t usbc_end		: 1;
-		uint64_t usbp_bist		: 1;
-		uint64_t tclk			: 1;
-		uint64_t dp_pulld		: 1;
-		uint64_t dm_pulld		: 1;
-		uint64_t hst_mode		: 1;
-		uint64_t tuning			: 4;
-		uint64_t tx_bs_enh		: 1;
-		uint64_t tx_bs_en		: 1;
-		uint64_t loop_enb		: 1;
-		uint64_t vtest_enb		: 1;
-		uint64_t bist_enb		: 1;
-		uint64_t tdata_sel		: 1;
-		uint64_t taddr_in		: 4;
-		uint64_t tdata_in		: 8;
-		uint64_t ate_reset		: 1;
+		__BITFIELD_FIELD(uint64_t txrisetune		: 1,
+		__BITFIELD_FIELD(uint64_t txvreftune		: 4,
+		__BITFIELD_FIELD(uint64_t txfslstune		: 4,
+		__BITFIELD_FIELD(uint64_t txhsxvtune		: 2,
+		__BITFIELD_FIELD(uint64_t sqrxtune		: 3,
+		__BITFIELD_FIELD(uint64_t compdistune		: 3,
+		__BITFIELD_FIELD(uint64_t otgtune		: 3,
+		__BITFIELD_FIELD(uint64_t otgdisable		: 1,
+		__BITFIELD_FIELD(uint64_t portreset		: 1,
+		__BITFIELD_FIELD(uint64_t drvvbus		: 1,
+		__BITFIELD_FIELD(uint64_t lsbist		: 1,
+		__BITFIELD_FIELD(uint64_t fsbist		: 1,
+		__BITFIELD_FIELD(uint64_t hsbist		: 1,
+		__BITFIELD_FIELD(uint64_t bist_done		: 1,
+		__BITFIELD_FIELD(uint64_t bist_err		: 1,
+		__BITFIELD_FIELD(uint64_t tdata_out		: 4,
+		__BITFIELD_FIELD(uint64_t siddq			: 1,
+		__BITFIELD_FIELD(uint64_t txpreemphasistune	: 1,
+		__BITFIELD_FIELD(uint64_t dma_bmode		: 1,
+		__BITFIELD_FIELD(uint64_t usbc_end		: 1,
+		__BITFIELD_FIELD(uint64_t usbp_bist		: 1,
+		__BITFIELD_FIELD(uint64_t tclk			: 1,
+		__BITFIELD_FIELD(uint64_t dp_pulld		: 1,
+		__BITFIELD_FIELD(uint64_t dm_pulld		: 1,
+		__BITFIELD_FIELD(uint64_t hst_mode		: 1,
+		__BITFIELD_FIELD(uint64_t tuning		: 4,
+		__BITFIELD_FIELD(uint64_t tx_bs_enh		: 1,
+		__BITFIELD_FIELD(uint64_t tx_bs_en		: 1,
+		__BITFIELD_FIELD(uint64_t loop_enb		: 1,
+		__BITFIELD_FIELD(uint64_t vtest_enb		: 1,
+		__BITFIELD_FIELD(uint64_t bist_enb		: 1,
+		__BITFIELD_FIELD(uint64_t tdata_sel		: 1,
+		__BITFIELD_FIELD(uint64_t taddr_in		: 4,
+		__BITFIELD_FIELD(uint64_t tdata_in		: 8,
+		__BITFIELD_FIELD(uint64_t ate_reset		: 1,
+		;)))))))))))))))))))))))))))))))))))
 	} s;
 };
 
diff --git a/drivers/staging/octeon/ethernet-mdio.c b/drivers/staging/octeon/ethernet-mdio.c
index ebfa9c9..40dab11 100644
--- a/drivers/staging/octeon/ethernet-mdio.c
+++ b/drivers/staging/octeon/ethernet-mdio.c
@@ -130,19 +130,6 @@ static void cvm_oct_note_carrier(struct octeon_ethernet *priv,
 	}
 }
 
-void cvm_oct_set_carrier(struct octeon_ethernet *priv,
-			 cvmx_helper_link_info_t link_info)
-{
-	cvm_oct_note_carrier(priv, link_info);
-	if (link_info.s.link_up) {
-		if (!netif_carrier_ok(priv->netdev))
-			netif_carrier_on(priv->netdev);
-	} else {
-		if (netif_carrier_ok(priv->netdev))
-			netif_carrier_off(priv->netdev);
-	}
-}
-
 void cvm_oct_adjust_link(struct net_device *dev)
 {
 	struct octeon_ethernet *priv = netdev_priv(dev);
diff --git a/drivers/staging/octeon/ethernet-mdio.h b/drivers/staging/octeon/ethernet-mdio.h
index eccfcc5..6191b08 100644
--- a/drivers/staging/octeon/ethernet-mdio.h
+++ b/drivers/staging/octeon/ethernet-mdio.h
@@ -40,5 +40,8 @@
 #endif /* CONFIG_XFRM */
 
 extern const struct ethtool_ops cvm_oct_ethtool_ops;
+
+extern void octeon_mdiobus_force_mod_depencency(void);
+
 int cvm_oct_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
 int cvm_oct_phy_setup_device(struct net_device *dev);
diff --git a/drivers/staging/octeon/ethernet.c b/drivers/staging/octeon/ethernet.c
index 460e854..f539d82 100644
--- a/drivers/staging/octeon/ethernet.c
+++ b/drivers/staging/octeon/ethernet.c
@@ -573,8 +573,6 @@ static const struct net_device_ops cvm_oct_pow_netdev_ops = {
 #endif
 };
 
-extern void octeon_mdiobus_force_mod_depencency(void);
-
 static struct device_node *cvm_oct_of_get_child(
 				const struct device_node *parent, int reg_val)
 {
@@ -859,7 +857,7 @@ static int cvm_oct_remove(struct platform_device *pdev)
 	return 0;
 }
 
-static struct of_device_id cvm_oct_match[] = {
+static const struct of_device_id cvm_oct_match[] = {
 	{
 		.compatible = "cavium,octeon-3860-pip",
 	},
diff --git a/drivers/staging/olpc_dcon/olpc_dcon.c b/drivers/staging/olpc_dcon/olpc_dcon.c
index bc7e664..d115f5c 100644
--- a/drivers/staging/olpc_dcon/olpc_dcon.c
+++ b/drivers/staging/olpc_dcon/olpc_dcon.c
@@ -18,8 +18,6 @@
 #include <linux/console.h>
 #include <linux/i2c.h>
 #include <linux/platform_device.h>
-#include <linux/pci.h>
-#include <linux/pci_ids.h>
 #include <linux/interrupt.h>
 #include <linux/delay.h>
 #include <linux/module.h>
diff --git a/drivers/staging/ozwpan/ozhcd.c b/drivers/staging/ozwpan/ozhcd.c
index 8543bb2..5ff4716 100644
--- a/drivers/staging/ozwpan/ozhcd.c
+++ b/drivers/staging/ozwpan/ozhcd.c
@@ -280,17 +280,20 @@ static void oz_free_urb_link(struct oz_urb_link *urbl)
  */
 static struct oz_endpoint *oz_ep_alloc(int buffer_size, gfp_t mem_flags)
 {
-	struct oz_endpoint *ep =
-		kzalloc(sizeof(struct oz_endpoint)+buffer_size, mem_flags);
-	if (ep) {
-		INIT_LIST_HEAD(&ep->urb_list);
-		INIT_LIST_HEAD(&ep->link);
-		ep->credit = -1;
-		if (buffer_size) {
-			ep->buffer_size = buffer_size;
-			ep->buffer = (u8 *)(ep+1);
-		}
+	struct oz_endpoint *ep;
+
+	ep = kzalloc(sizeof(struct oz_endpoint)+buffer_size, mem_flags);
+	if (!ep)
+		return NULL;
+
+	INIT_LIST_HEAD(&ep->urb_list);
+	INIT_LIST_HEAD(&ep->link);
+	ep->credit = -1;
+	if (buffer_size) {
+		ep->buffer_size = buffer_size;
+		ep->buffer = (u8 *)(ep+1);
 	}
+
 	return ep;
 }
 
diff --git a/drivers/staging/ozwpan/ozmain.c b/drivers/staging/ozwpan/ozmain.c
index 7d6ef4c..74ef348 100644
--- a/drivers/staging/ozwpan/ozmain.c
+++ b/drivers/staging/ozwpan/ozmain.c
@@ -34,11 +34,21 @@ MODULE_PARM_DESC(g_net_dev, "The device(s) to bind to; "
  */
 static int __init ozwpan_init(void)
 {
-	oz_cdev_register();
-	oz_protocol_init(g_net_dev);
+	int err;
+
+	err = oz_cdev_register();
+	if (err)
+		return err;
+	err = oz_protocol_init(g_net_dev);
+	if (err)
+		goto err_protocol;
 	oz_app_enable(OZ_APPID_USB, 1);
 	oz_apps_init();
 	return 0;
+
+err_protocol:
+	oz_cdev_deregister();
+	return err;
 }
 
 /*
diff --git a/drivers/staging/ozwpan/ozpd.c b/drivers/staging/ozwpan/ozpd.c
index 852c288..021d74a 100644
--- a/drivers/staging/ozwpan/ozpd.c
+++ b/drivers/staging/ozwpan/ozpd.c
@@ -102,34 +102,36 @@ void oz_pd_put(struct oz_pd *pd)
  */
 struct oz_pd *oz_pd_alloc(const u8 *mac_addr)
 {
-	struct oz_pd *pd = kzalloc(sizeof(struct oz_pd), GFP_ATOMIC);
-
-	if (pd) {
-		int i;
-
-		atomic_set(&pd->ref_count, 2);
-		for (i = 0; i < OZ_NB_APPS; i++)
-			spin_lock_init(&pd->app_lock[i]);
-		pd->last_rx_pkt_num = 0xffffffff;
-		oz_pd_set_state(pd, OZ_PD_S_IDLE);
-		pd->max_tx_size = OZ_MAX_TX_SIZE;
-		ether_addr_copy(pd->mac_addr, mac_addr);
-		oz_elt_buf_init(&pd->elt_buff);
-		spin_lock_init(&pd->tx_frame_lock);
-		INIT_LIST_HEAD(&pd->tx_queue);
-		INIT_LIST_HEAD(&pd->farewell_list);
-		pd->last_sent_frame = &pd->tx_queue;
-		spin_lock_init(&pd->stream_lock);
-		INIT_LIST_HEAD(&pd->stream_list);
-		tasklet_init(&pd->heartbeat_tasklet, oz_pd_heartbeat_handler,
-							(unsigned long)pd);
-		tasklet_init(&pd->timeout_tasklet, oz_pd_timeout_handler,
-							(unsigned long)pd);
-		hrtimer_init(&pd->heartbeat, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-		hrtimer_init(&pd->timeout, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-		pd->heartbeat.function = oz_pd_heartbeat_event;
-		pd->timeout.function = oz_pd_timeout_event;
-	}
+	struct oz_pd *pd;
+	int i;
+
+	pd = kzalloc(sizeof(struct oz_pd), GFP_ATOMIC);
+	if (!pd)
+		return NULL;
+
+	atomic_set(&pd->ref_count, 2);
+	for (i = 0; i < OZ_NB_APPS; i++)
+		spin_lock_init(&pd->app_lock[i]);
+	pd->last_rx_pkt_num = 0xffffffff;
+	oz_pd_set_state(pd, OZ_PD_S_IDLE);
+	pd->max_tx_size = OZ_MAX_TX_SIZE;
+	ether_addr_copy(pd->mac_addr, mac_addr);
+	oz_elt_buf_init(&pd->elt_buff);
+	spin_lock_init(&pd->tx_frame_lock);
+	INIT_LIST_HEAD(&pd->tx_queue);
+	INIT_LIST_HEAD(&pd->farewell_list);
+	pd->last_sent_frame = &pd->tx_queue;
+	spin_lock_init(&pd->stream_lock);
+	INIT_LIST_HEAD(&pd->stream_list);
+	tasklet_init(&pd->heartbeat_tasklet, oz_pd_heartbeat_handler,
+						(unsigned long)pd);
+	tasklet_init(&pd->timeout_tasklet, oz_pd_timeout_handler,
+						(unsigned long)pd);
+	hrtimer_init(&pd->heartbeat, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
+	hrtimer_init(&pd->timeout, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
+	pd->heartbeat.function = oz_pd_heartbeat_event;
+	pd->timeout.function = oz_pd_timeout_event;
+
 	return pd;
 }
 
@@ -652,8 +654,9 @@ static struct oz_isoc_stream *pd_stream_find(struct oz_pd *pd, u8 ep_num)
  */
 int oz_isoc_stream_create(struct oz_pd *pd, u8 ep_num)
 {
-	struct oz_isoc_stream *st =
-		kzalloc(sizeof(struct oz_isoc_stream), GFP_ATOMIC);
+	struct oz_isoc_stream *st;
+
+	st = kzalloc(sizeof(struct oz_isoc_stream), GFP_ATOMIC);
 	if (!st)
 		return -ENOMEM;
 	st->ep_num = ep_num;
diff --git a/drivers/staging/ozwpan/ozproto.c b/drivers/staging/ozwpan/ozproto.c
index 3d3a3a8..1ba24a2 100644
--- a/drivers/staging/ozwpan/ozproto.c
+++ b/drivers/staging/ozwpan/ozproto.c
@@ -98,7 +98,7 @@ static void oz_send_conn_rsp(struct oz_pd *pd, u8 status)
 		kfree_skb(skb);
 		return;
 	}
-	oz_hdr->control = (OZ_PROTOCOL_VERSION<<OZ_VERSION_SHIFT);
+	oz_hdr->control = OZ_PROTOCOL_VERSION<<OZ_VERSION_SHIFT;
 	oz_hdr->last_pkt_num = 0;
 	put_unaligned(0, &oz_hdr->pkt_num);
 	elt->type = OZ_ELT_CONNECT_RSP;
diff --git a/drivers/staging/panel/panel.c b/drivers/staging/panel/panel.c
index 6ed35b6..ea54fb4 100644
--- a/drivers/staging/panel/panel.c
+++ b/drivers/staging/panel/panel.c
@@ -335,11 +335,11 @@ static unsigned char lcd_bits[LCD_PORTS][LCD_BITS][BIT_STATES];
  * LCD types
  */
 #define LCD_TYPE_NONE		0
-#define LCD_TYPE_OLD		1
-#define LCD_TYPE_KS0074		2
-#define LCD_TYPE_HANTRONIX	3
-#define LCD_TYPE_NEXCOM		4
-#define LCD_TYPE_CUSTOM		5
+#define LCD_TYPE_CUSTOM		1
+#define LCD_TYPE_OLD		2
+#define LCD_TYPE_KS0074		3
+#define LCD_TYPE_HANTRONIX	4
+#define LCD_TYPE_NEXCOM		5
 
 /*
  * keypad types
@@ -473,8 +473,6 @@ static struct pardevice *pprt;
 
 static int keypad_initialized;
 
-static char init_in_progress;
-
 static void (*lcd_write_cmd)(int);
 static void (*lcd_write_data)(int);
 static void (*lcd_clear_fast)(void);
@@ -502,7 +500,7 @@ MODULE_PARM_DESC(keypad_type,
 static int lcd_type = NOT_SET;
 module_param(lcd_type, int, 0000);
 MODULE_PARM_DESC(lcd_type,
-		 "LCD type: 0=none, 1=old //, 2=serial ks0074, 3=hantronix //, 4=nexcom //, 5=compiled-in");
+		 "LCD type: 0=none, 1=compiled-in, 2=old, 3=serial ks0074, 4=hantronix, 5=nexcom");
 
 static int lcd_height = NOT_SET;
 module_param(lcd_height, int, 0000);
@@ -1718,9 +1716,6 @@ static struct miscdevice keypad_dev = {
 
 static void keypad_send_key(const char *string, int max_len)
 {
-	if (init_in_progress)
-		return;
-
 	/* send the key to the device only if a process is attached to it. */
 	if (!atomic_read(&keypad_available)) {
 		while (max_len-- && keypad_buflen < KEYPAD_BUFFER && *string) {
@@ -2010,10 +2005,8 @@ static void init_scan_timer(void)
 	if (scan_timer.function != NULL)
 		return;		/* already started */
 
-	init_timer(&scan_timer);
+	setup_timer(&scan_timer, (void *)&panel_scan_timer, 0);
 	scan_timer.expires = jiffies + INPUT_POLL_TIME;
-	scan_timer.data = 0;
-	scan_timer.function = (void *)&panel_scan_timer;
 	add_timer(&scan_timer);
 }
 
@@ -2236,6 +2229,7 @@ static void panel_attach(struct parport *port)
 		if (misc_register(&keypad_dev))
 			goto err_lcd_unreg;
 	}
+	register_reboot_notifier(&panel_notifier);
 	return;
 
 err_lcd_unreg:
@@ -2257,6 +2251,8 @@ static void panel_detach(struct parport *port)
 		return;
 	}
 
+	unregister_reboot_notifier(&panel_notifier);
+
 	if (keypad.enabled && keypad_initialized) {
 		misc_deregister(&keypad_dev);
 		keypad_initialized = 0;
@@ -2281,7 +2277,7 @@ static struct parport_driver panel_driver = {
 /* init function */
 static int __init panel_init_module(void)
 {
-	int selected_keypad_type = NOT_SET;
+	int selected_keypad_type = NOT_SET, err;
 
 	/* take care of an eventual profile */
 	switch (profile) {
@@ -2324,26 +2320,6 @@ static int __init panel_init_module(void)
 	}
 
 	/*
-	 * Init lcd struct with load-time values to preserve exact current
-	 * functionality (at least for now).
-	 */
-	lcd.height = lcd_height;
-	lcd.width = lcd_width;
-	lcd.bwidth = lcd_bwidth;
-	lcd.hwidth = lcd_hwidth;
-	lcd.charset = lcd_charset;
-	lcd.proto = lcd_proto;
-	lcd.pins.e = lcd_e_pin;
-	lcd.pins.rs = lcd_rs_pin;
-	lcd.pins.rw = lcd_rw_pin;
-	lcd.pins.cl = lcd_cl_pin;
-	lcd.pins.da = lcd_da_pin;
-	lcd.pins.bl = lcd_bl_pin;
-
-	/* Leave it for now, just in case */
-	lcd.esc_seq.len = -1;
-
-	/*
 	 * Overwrite selection with module param values (both keypad and lcd),
 	 * where the deprecated params have lower prio.
 	 */
@@ -2361,6 +2337,28 @@ static int __init panel_init_module(void)
 
 	lcd.enabled = (selected_lcd_type > 0);
 
+	if (lcd.enabled) {
+		/*
+		 * Init lcd struct with load-time values to preserve exact
+		 * current functionality (at least for now).
+		 */
+		lcd.height = lcd_height;
+		lcd.width = lcd_width;
+		lcd.bwidth = lcd_bwidth;
+		lcd.hwidth = lcd_hwidth;
+		lcd.charset = lcd_charset;
+		lcd.proto = lcd_proto;
+		lcd.pins.e = lcd_e_pin;
+		lcd.pins.rs = lcd_rs_pin;
+		lcd.pins.rw = lcd_rw_pin;
+		lcd.pins.cl = lcd_cl_pin;
+		lcd.pins.da = lcd_da_pin;
+		lcd.pins.bl = lcd_bl_pin;
+
+		/* Leave it for now, just in case */
+		lcd.esc_seq.len = -1;
+	}
+
 	switch (selected_keypad_type) {
 	case KEYPAD_TYPE_OLD:
 		keypad_profile = old_keypad_profile;
@@ -2376,27 +2374,17 @@ static int __init panel_init_module(void)
 		break;
 	}
 
-	/* tells various subsystems about the fact that we are initializing */
-	init_in_progress = 1;
-
-	if (parport_register_driver(&panel_driver)) {
-		pr_err("could not register with parport. Aborting.\n");
-		return -EIO;
-	}
-
 	if (!lcd.enabled && !keypad.enabled) {
-		/* no device enabled, let's release the parport */
-		if (pprt) {
-			parport_release(pprt);
-			parport_unregister_device(pprt);
-			pprt = NULL;
-		}
-		parport_unregister_driver(&panel_driver);
+		/* no device enabled, let's exit */
 		pr_err("driver version " PANEL_VERSION " disabled.\n");
 		return -ENODEV;
 	}
 
-	register_reboot_notifier(&panel_notifier);
+	err = parport_register_driver(&panel_driver);
+	if (err) {
+		pr_err("could not register with parport. Aborting.\n");
+		return err;
+	}
 
 	if (pprt)
 		pr_info("driver version " PANEL_VERSION
@@ -2405,15 +2393,11 @@ static int __init panel_init_module(void)
 	else
 		pr_info("driver version " PANEL_VERSION
 			" not yet registered\n");
-	/* tells various subsystems about the fact that initialization
-	   is finished */
-	init_in_progress = 0;
 	return 0;
 }
 
 static void __exit panel_cleanup_module(void)
 {
-	unregister_reboot_notifier(&panel_notifier);
 
 	if (scan_timer.function != NULL)
 		del_timer_sync(&scan_timer);
diff --git a/drivers/staging/rtl8188eu/core/rtw_ap.c b/drivers/staging/rtl8188eu/core/rtw_ap.c
index da19145..e65ee6e 100644
--- a/drivers/staging/rtl8188eu/core/rtw_ap.c
+++ b/drivers/staging/rtl8188eu/core/rtw_ap.c
@@ -23,6 +23,7 @@
 #include <drv_types.h>
 #include <wifi.h>
 #include <ieee80211.h>
+#include <asm/unaligned.h>
 
 #ifdef CONFIG_88EU_AP_MODE
 
@@ -78,11 +79,8 @@ static void update_BCNTIM(struct adapter *padapter)
 	if (true) {
 		u8 *p, *dst_ie, *premainder_ie = NULL;
 		u8 *pbackup_remainder_ie = NULL;
-		__le16 tim_bitmap_le;
 		uint offset, tmp_len, tim_ielen, tim_ie_offset, remainder_ielen;
 
-		tim_bitmap_le = cpu_to_le16(pstapriv->tim_bitmap);
-
 		p = rtw_get_ie(pie + _FIXED_IE_LENGTH_, _TIM_IE_, &tim_ielen, pnetwork_mlmeext->IELength - _FIXED_IE_LENGTH_);
 		if (p != NULL && tim_ielen > 0) {
 			tim_ielen += 2;
@@ -137,9 +135,9 @@ static void update_BCNTIM(struct adapter *padapter)
 			*dst_ie++ = 0;
 
 		if (tim_ielen == 4) {
-			*dst_ie++ = *(u8 *)&tim_bitmap_le;
+			*dst_ie++ = pstapriv->tim_bitmap & 0xff;
 		} else if (tim_ielen == 5) {
-			memcpy(dst_ie, &tim_bitmap_le, 2);
+			put_unaligned_le16(pstapriv->tim_bitmap, dst_ie);
 			dst_ie += 2;
 		}
 
diff --git a/drivers/staging/rtl8188eu/core/rtw_cmd.c b/drivers/staging/rtl8188eu/core/rtw_cmd.c
index 4b43462..89b5e48 100644
--- a/drivers/staging/rtl8188eu/core/rtw_cmd.c
+++ b/drivers/staging/rtl8188eu/core/rtw_cmd.c
@@ -325,7 +325,8 @@ u8 rtw_sitesurvey_cmd(struct adapter  *padapter, struct ndis_802_11_ssid *ssid,
 	if (res == _SUCCESS) {
 		pmlmepriv->scan_start_time = jiffies;
 
-		_set_timer(&pmlmepriv->scan_to_timer, SCANNING_TIMEOUT);
+		mod_timer(&pmlmepriv->scan_to_timer,
+			  jiffies + msecs_to_jiffies(SCANNING_TIMEOUT));
 
 		rtw_led_control(padapter, LED_CTL_SITE_SURVEY);
 
@@ -1234,9 +1235,11 @@ void rtw_survey_cmd_callback(struct adapter *padapter,  struct cmd_obj *pcmd)
 	if (pcmd->res == H2C_DROPPED) {
 		/* TODO: cancel timer and do timeout handler directly... */
 		/* need to make timeout handlerOS independent */
-		_set_timer(&pmlmepriv->scan_to_timer, 1);
+		mod_timer(&pmlmepriv->scan_to_timer,
+			  jiffies + msecs_to_jiffies(1));
 	} else if (pcmd->res != H2C_SUCCESS) {
-		_set_timer(&pmlmepriv->scan_to_timer, 1);
+		mod_timer(&pmlmepriv->scan_to_timer,
+			  jiffies + msecs_to_jiffies(1));
 		RT_TRACE(_module_rtl871x_cmd_c_, _drv_err_, ("\n ********Error: MgntActrtw_set_802_11_bssid_LIST_SCAN Fail ************\n\n."));
 	}
 
@@ -1270,10 +1273,12 @@ void rtw_joinbss_cmd_callback(struct adapter *padapter,  struct cmd_obj *pcmd)
 	if (pcmd->res == H2C_DROPPED) {
 		/* TODO: cancel timer and do timeout handler directly... */
 		/* need to make timeout handlerOS independent */
-		_set_timer(&pmlmepriv->assoc_timer, 1);
+		mod_timer(&pmlmepriv->assoc_timer,
+			  jiffies + msecs_to_jiffies(1));
 	} else if (pcmd->res != H2C_SUCCESS) {
 		RT_TRACE(_module_rtl871x_cmd_c_, _drv_err_, ("********Error:rtw_select_and_join_from_scanned_queue Wait Sema  Fail ************\n"));
-		_set_timer(&pmlmepriv->assoc_timer, 1);
+		mod_timer(&pmlmepriv->assoc_timer,
+			  jiffies + msecs_to_jiffies(1));
 	}
 
 	rtw_free_cmd_obj(pcmd);
@@ -1291,7 +1296,8 @@ void rtw_createbss_cmd_callback(struct adapter *padapter, struct cmd_obj *pcmd)
 
 	if (pcmd->res != H2C_SUCCESS) {
 		RT_TRACE(_module_rtl871x_cmd_c_, _drv_err_, ("\n ********Error: rtw_createbss_cmd_callback  Fail ************\n\n."));
-		_set_timer(&pmlmepriv->assoc_timer, 1);
+		mod_timer(&pmlmepriv->assoc_timer,
+			  jiffies + msecs_to_jiffies(1));
 	}
 
 	del_timer_sync(&pmlmepriv->assoc_timer);
diff --git a/drivers/staging/rtl8188eu/core/rtw_efuse.c b/drivers/staging/rtl8188eu/core/rtw_efuse.c
index 8816d11..b667461 100644
--- a/drivers/staging/rtl8188eu/core/rtw_efuse.c
+++ b/drivers/staging/rtl8188eu/core/rtw_efuse.c
@@ -139,7 +139,7 @@ efuse_phymap_to_logical(u8 *phymap, u16 _offset, u16 _size_byte, u8  *pbuf)
 	while ((rtemp8 != 0xFF) && (eFuse_Addr < EFUSE_REAL_CONTENT_LEN_88E)) {
 		/*  Check PG header for section num. */
 		if ((rtemp8 & 0x1F) == 0x0F) {		/* extended header */
-			u1temp = ((rtemp8 & 0xE0) >> 5);
+			u1temp = (rtemp8 & 0xE0) >> 5;
 			rtemp8 = *(phymap+eFuse_Addr);
 			if ((rtemp8 & 0x0F) == 0x0F) {
 				eFuse_Addr++;
@@ -150,12 +150,12 @@ efuse_phymap_to_logical(u8 *phymap, u16 _offset, u16 _size_byte, u8  *pbuf)
 				continue;
 			} else {
 				offset = ((rtemp8 & 0xF0) >> 1) | u1temp;
-				wren = (rtemp8 & 0x0F);
+				wren = rtemp8 & 0x0F;
 				eFuse_Addr++;
 			}
 		} else {
-			offset = ((rtemp8 >> 4) & 0x0f);
-			wren = (rtemp8 & 0x0f);
+			offset = (rtemp8 >> 4) & 0x0f;
+			wren = rtemp8 & 0x0f;
 		}
 
 		if (offset < EFUSE_MAX_SECTION_88E) {
diff --git a/drivers/staging/rtl8188eu/core/rtw_ieee80211.c b/drivers/staging/rtl8188eu/core/rtw_ieee80211.c
index f2c3ca7..11b780d 100644
--- a/drivers/staging/rtl8188eu/core/rtw_ieee80211.c
+++ b/drivers/staging/rtl8188eu/core/rtw_ieee80211.c
@@ -27,7 +27,6 @@
 #include <wlan_bssdef.h>
 
 u8 RTW_WPA_OUI_TYPE[] = { 0x00, 0x50, 0xf2, 1 };
-u16 RTW_WPA_VERSION = 1;
 u8 WPA_AUTH_KEY_MGMT_NONE[] = { 0x00, 0x50, 0xf2, 0 };
 u8 WPA_AUTH_KEY_MGMT_UNSPEC_802_1X[] = { 0x00, 0x50, 0xf2, 1 };
 u8 WPA_AUTH_KEY_MGMT_PSK_OVER_802_1X[] = { 0x00, 0x50, 0xf2, 2 };
@@ -663,7 +662,7 @@ int rtw_get_sec_ie(u8 *in_ie, uint in_len, u8 *rsn_ie, u16 *rsn_len, u8 *wpa_ie,
 
 	/* Search required WPA or WPA2 IE and copy to sec_ie[] */
 
-	cnt = (_TIMESTAMP_ + _BEACON_ITERVAL_ + _CAPABILITY_);
+	cnt = _TIMESTAMP_ + _BEACON_ITERVAL_ + _CAPABILITY_;
 
 	sec_idx = 0;
 
@@ -789,7 +788,7 @@ u8 *rtw_get_wps_ie(u8 *in_ie, uint in_len, u8 *wps_ie, uint *wps_ielen)
  *
  * Returns: the address of the specific WPS attribute found, or NULL
  */
-u8 *rtw_get_wps_attr(u8 *wps_ie, uint wps_ielen, u16 target_attr_id , u8 *buf_attr, u32 *len_attr)
+u8 *rtw_get_wps_attr(u8 *wps_ie, uint wps_ielen, u16 target_attr_id, u8 *buf_attr, u32 *len_attr)
 {
 	u8 *attr_ptr = NULL;
 	u8 *target_attr_ptr = NULL;
@@ -799,7 +798,7 @@ u8 *rtw_get_wps_attr(u8 *wps_ie, uint wps_ielen, u16 target_attr_id , u8 *buf_at
 		*len_attr = 0;
 
 	if ((wps_ie[0] != _VENDOR_SPECIFIC_IE_) ||
-	    (memcmp(wps_ie + 2, wps_oui , 4)))
+	    (memcmp(wps_ie + 2, wps_oui, 4)))
 		return attr_ptr;
 
 	/*  6 = 1(Element ID) + 1(Length) + 4(WPS OUI) */
@@ -835,7 +834,7 @@ u8 *rtw_get_wps_attr(u8 *wps_ie, uint wps_ielen, u16 target_attr_id , u8 *buf_at
  *
  * Returns: the address of the specific WPS attribute content found, or NULL
  */
-u8 *rtw_get_wps_attr_content(u8 *wps_ie, uint wps_ielen, u16 target_attr_id , u8 *buf_content, uint *len_content)
+u8 *rtw_get_wps_attr_content(u8 *wps_ie, uint wps_ielen, u16 target_attr_id, u8 *buf_content, uint *len_content)
 {
 	u8 *attr_ptr;
 	u32 attr_len;
@@ -1239,7 +1238,7 @@ void rtw_get_bcn_info(struct wlan_network *pnetwork)
 	} else {
 		pnetwork->BcnInfo.encryp_protocol = ENCRYP_PROTOCOL_OPENSYS;
 	}
-	rtw_get_sec_ie(pnetwork->network.IEs , pnetwork->network.IELength, NULL, &rsn_len, NULL, &wpa_len);
+	rtw_get_sec_ie(pnetwork->network.IEs, pnetwork->network.IELength, NULL, &rsn_len, NULL, &wpa_len);
 	RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("rtw_get_bcn_info: ssid =%s\n", pnetwork->network.Ssid.Ssid));
 	RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("rtw_get_bcn_info: wpa_len =%d rsn_len =%d\n", wpa_len, rsn_len));
 	RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("rtw_get_bcn_info: ssid =%s\n", pnetwork->network.Ssid.Ssid));
diff --git a/drivers/staging/rtl8188eu/core/rtw_ioctl_set.c b/drivers/staging/rtl8188eu/core/rtw_ioctl_set.c
index 2faf6b2e..969150a 100644
--- a/drivers/staging/rtl8188eu/core/rtw_ioctl_set.c
+++ b/drivers/staging/rtl8188eu/core/rtw_ioctl_set.c
@@ -86,7 +86,8 @@ u8 rtw_do_join(struct adapter *padapter)
 		select_ret = rtw_select_and_join_from_scanned_queue(pmlmepriv);
 		if (select_ret == _SUCCESS) {
 			pmlmepriv->to_join = false;
-			_set_timer(&pmlmepriv->assoc_timer, MAX_JOIN_TIMEOUT);
+			mod_timer(&pmlmepriv->assoc_timer,
+				  jiffies + msecs_to_jiffies(MAX_JOIN_TIMEOUT));
 		} else {
 			if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE) == true) {
 				/*  submit createbss_cmd to change to a ADHOC_MASTER */
diff --git a/drivers/staging/rtl8188eu/core/rtw_led.c b/drivers/staging/rtl8188eu/core/rtw_led.c
index 1b8264b..94405dc 100644
--- a/drivers/staging/rtl8188eu/core/rtw_led.c
+++ b/drivers/staging/rtl8188eu/core/rtw_led.c
@@ -22,9 +22,9 @@
 /*		Callback function of LED BlinkTimer, */
 /*		it just schedules to corresponding BlinkWorkItem/led_blink_hdl */
 /*  */
-void BlinkTimerCallback(void *data)
+void BlinkTimerCallback(unsigned long data)
 {
-	struct LED_871x *pLed = data;
+	struct LED_871x *pLed = (struct LED_871x *)data;
 	struct adapter *padapter = pLed->padapter;
 
 	if ((padapter->bSurpriseRemoved) || (padapter->bDriverStopped))
@@ -72,7 +72,8 @@ void InitLed871x(struct adapter *padapter, struct LED_871x *pLed)
 
 	ResetLedStatus(pLed);
 
-	_init_timer(&(pLed->BlinkTimer), padapter->pnetdev, BlinkTimerCallback, pLed);
+	setup_timer(&(pLed->BlinkTimer), BlinkTimerCallback,
+		    (unsigned long)pLed);
 
 	INIT_WORK(&(pLed->BlinkWorkItem), BlinkWorkItemCallback);
 }
@@ -122,14 +123,16 @@ static void SwLedBlink1(struct LED_871x *pLed)
 			pLed->BlinkingLedState = RTW_LED_OFF;
 		else
 			pLed->BlinkingLedState = RTW_LED_ON;
-		_set_timer(&(pLed->BlinkTimer), LED_BLINK_NO_LINK_INTERVAL_ALPHA);
+		mod_timer(&pLed->BlinkTimer, jiffies +
+			  msecs_to_jiffies(LED_BLINK_NO_LINK_INTERVAL_ALPHA));
 		break;
 	case LED_BLINK_NORMAL:
 		if (pLed->bLedOn)
 			pLed->BlinkingLedState = RTW_LED_OFF;
 		else
 			pLed->BlinkingLedState = RTW_LED_ON;
-		_set_timer(&(pLed->BlinkTimer), LED_BLINK_LINK_INTERVAL_ALPHA);
+		mod_timer(&pLed->BlinkTimer, jiffies +
+			  msecs_to_jiffies(LED_BLINK_LINK_INTERVAL_ALPHA));
 		break;
 	case LED_BLINK_SCAN:
 		pLed->BlinkTimes--;
@@ -143,7 +146,8 @@ static void SwLedBlink1(struct LED_871x *pLed)
 					pLed->BlinkingLedState = RTW_LED_OFF;
 				else
 					pLed->BlinkingLedState = RTW_LED_ON;
-				_set_timer(&(pLed->BlinkTimer), LED_BLINK_LINK_INTERVAL_ALPHA);
+				mod_timer(&pLed->BlinkTimer, jiffies +
+					  msecs_to_jiffies(LED_BLINK_LINK_INTERVAL_ALPHA));
 				RT_TRACE(_module_rtl8712_led_c_, _drv_info_, ("CurrLedState %d\n", pLed->CurrLedState));
 			} else if (!check_fwstate(pmlmepriv, _FW_LINKED)) {
 				pLed->bLedNoLinkBlinkInProgress = true;
@@ -152,7 +156,8 @@ static void SwLedBlink1(struct LED_871x *pLed)
 					pLed->BlinkingLedState = RTW_LED_OFF;
 				else
 					pLed->BlinkingLedState = RTW_LED_ON;
-				_set_timer(&(pLed->BlinkTimer), LED_BLINK_NO_LINK_INTERVAL_ALPHA);
+				mod_timer(&pLed->BlinkTimer, jiffies +
+					  msecs_to_jiffies(LED_BLINK_NO_LINK_INTERVAL_ALPHA));
 				RT_TRACE(_module_rtl8712_led_c_, _drv_info_, ("CurrLedState %d\n", pLed->CurrLedState));
 			}
 			pLed->bLedScanBlinkInProgress = false;
@@ -161,7 +166,8 @@ static void SwLedBlink1(struct LED_871x *pLed)
 				pLed->BlinkingLedState = RTW_LED_OFF;
 			else
 				pLed->BlinkingLedState = RTW_LED_ON;
-			_set_timer(&(pLed->BlinkTimer), LED_BLINK_SCAN_INTERVAL_ALPHA);
+			mod_timer(&pLed->BlinkTimer, jiffies +
+				  msecs_to_jiffies(LED_BLINK_SCAN_INTERVAL_ALPHA));
 		}
 		break;
 	case LED_BLINK_TXRX:
@@ -176,7 +182,8 @@ static void SwLedBlink1(struct LED_871x *pLed)
 					pLed->BlinkingLedState = RTW_LED_OFF;
 				else
 					pLed->BlinkingLedState = RTW_LED_ON;
-				_set_timer(&(pLed->BlinkTimer), LED_BLINK_LINK_INTERVAL_ALPHA);
+				mod_timer(&pLed->BlinkTimer, jiffies +
+					  msecs_to_jiffies(LED_BLINK_LINK_INTERVAL_ALPHA));
 				RT_TRACE(_module_rtl8712_led_c_, _drv_info_, ("CurrLedState %d\n", pLed->CurrLedState));
 			} else if (!check_fwstate(pmlmepriv, _FW_LINKED)) {
 				pLed->bLedNoLinkBlinkInProgress = true;
@@ -185,7 +192,8 @@ static void SwLedBlink1(struct LED_871x *pLed)
 					pLed->BlinkingLedState = RTW_LED_OFF;
 				else
 					pLed->BlinkingLedState = RTW_LED_ON;
-				_set_timer(&(pLed->BlinkTimer), LED_BLINK_NO_LINK_INTERVAL_ALPHA);
+				mod_timer(&pLed->BlinkTimer, jiffies +
+					  msecs_to_jiffies(LED_BLINK_NO_LINK_INTERVAL_ALPHA));
 				RT_TRACE(_module_rtl8712_led_c_, _drv_info_, ("CurrLedState %d\n", pLed->CurrLedState));
 			}
 			pLed->BlinkTimes = 0;
@@ -195,7 +203,8 @@ static void SwLedBlink1(struct LED_871x *pLed)
 				pLed->BlinkingLedState = RTW_LED_OFF;
 			else
 				pLed->BlinkingLedState = RTW_LED_ON;
-			_set_timer(&(pLed->BlinkTimer), LED_BLINK_FASTER_INTERVAL_ALPHA);
+			mod_timer(&pLed->BlinkTimer, jiffies +
+				  msecs_to_jiffies(LED_BLINK_FASTER_INTERVAL_ALPHA));
 		}
 		break;
 	case LED_BLINK_WPS:
@@ -203,7 +212,8 @@ static void SwLedBlink1(struct LED_871x *pLed)
 			pLed->BlinkingLedState = RTW_LED_OFF;
 		else
 			pLed->BlinkingLedState = RTW_LED_ON;
-		_set_timer(&(pLed->BlinkTimer), LED_BLINK_SCAN_INTERVAL_ALPHA);
+		mod_timer(&pLed->BlinkTimer, jiffies +
+			  msecs_to_jiffies(LED_BLINK_SCAN_INTERVAL_ALPHA));
 		break;
 	case LED_BLINK_WPS_STOP:	/* WPS success */
 		if (pLed->BlinkingLedState == RTW_LED_ON)
@@ -218,14 +228,15 @@ static void SwLedBlink1(struct LED_871x *pLed)
 				pLed->BlinkingLedState = RTW_LED_OFF;
 			else
 				pLed->BlinkingLedState = RTW_LED_ON;
-			_set_timer(&(pLed->BlinkTimer), LED_BLINK_LINK_INTERVAL_ALPHA);
+			mod_timer(&pLed->BlinkTimer, jiffies +
+				  msecs_to_jiffies(LED_BLINK_LINK_INTERVAL_ALPHA));
 			RT_TRACE(_module_rtl8712_led_c_, _drv_info_, ("CurrLedState %d\n", pLed->CurrLedState));
 
 			pLed->bLedWPSBlinkInProgress = false;
 		} else {
 			pLed->BlinkingLedState = RTW_LED_OFF;
-			_set_timer(&(pLed->BlinkTimer),
-				   LED_BLINK_WPS_SUCCESS_INTERVAL_ALPHA);
+			mod_timer(&pLed->BlinkTimer, jiffies +
+				  msecs_to_jiffies(LED_BLINK_WPS_SUCCESS_INTERVAL_ALPHA));
 		}
 		break;
 	default:
@@ -262,7 +273,8 @@ static void SwLedControlMode1(struct adapter *padapter, enum LED_CTL_MODE LedAct
 				pLed->BlinkingLedState = RTW_LED_OFF;
 			else
 				pLed->BlinkingLedState = RTW_LED_ON;
-			_set_timer(&(pLed->BlinkTimer), LED_BLINK_NO_LINK_INTERVAL_ALPHA);
+			mod_timer(&pLed->BlinkTimer, jiffies +
+				  msecs_to_jiffies(LED_BLINK_NO_LINK_INTERVAL_ALPHA));
 		}
 		break;
 	case LED_CTL_LINK:
@@ -283,7 +295,8 @@ static void SwLedControlMode1(struct adapter *padapter, enum LED_CTL_MODE LedAct
 				pLed->BlinkingLedState = RTW_LED_OFF;
 			else
 				pLed->BlinkingLedState = RTW_LED_ON;
-			_set_timer(&(pLed->BlinkTimer), LED_BLINK_LINK_INTERVAL_ALPHA);
+			mod_timer(&pLed->BlinkTimer, jiffies +
+				  msecs_to_jiffies(LED_BLINK_LINK_INTERVAL_ALPHA));
 		}
 		break;
 	case LED_CTL_SITE_SURVEY:
@@ -311,7 +324,8 @@ static void SwLedControlMode1(struct adapter *padapter, enum LED_CTL_MODE LedAct
 				pLed->BlinkingLedState = RTW_LED_OFF;
 			else
 				pLed->BlinkingLedState = RTW_LED_ON;
-			_set_timer(&(pLed->BlinkTimer), LED_BLINK_SCAN_INTERVAL_ALPHA);
+			mod_timer(&pLed->BlinkTimer, jiffies +
+				  msecs_to_jiffies(LED_BLINK_SCAN_INTERVAL_ALPHA));
 		 }
 		break;
 	case LED_CTL_TX:
@@ -334,7 +348,8 @@ static void SwLedControlMode1(struct adapter *padapter, enum LED_CTL_MODE LedAct
 				pLed->BlinkingLedState = RTW_LED_OFF;
 			else
 				pLed->BlinkingLedState = RTW_LED_ON;
-			_set_timer(&(pLed->BlinkTimer), LED_BLINK_FASTER_INTERVAL_ALPHA);
+			mod_timer(&pLed->BlinkTimer, jiffies +
+				  msecs_to_jiffies(LED_BLINK_FASTER_INTERVAL_ALPHA));
 		}
 		break;
 	case LED_CTL_START_WPS: /* wait until xinpin finish */
@@ -362,7 +377,8 @@ static void SwLedControlMode1(struct adapter *padapter, enum LED_CTL_MODE LedAct
 				pLed->BlinkingLedState = RTW_LED_OFF;
 			else
 				pLed->BlinkingLedState = RTW_LED_ON;
-			_set_timer(&(pLed->BlinkTimer), LED_BLINK_SCAN_INTERVAL_ALPHA);
+			mod_timer(&pLed->BlinkTimer, jiffies +
+				  msecs_to_jiffies(LED_BLINK_SCAN_INTERVAL_ALPHA));
 		 }
 		break;
 	case LED_CTL_STOP_WPS:
@@ -389,11 +405,12 @@ static void SwLedControlMode1(struct adapter *padapter, enum LED_CTL_MODE LedAct
 		pLed->CurrLedState = LED_BLINK_WPS_STOP;
 		if (pLed->bLedOn) {
 			pLed->BlinkingLedState = RTW_LED_OFF;
-			_set_timer(&(pLed->BlinkTimer),
-				   LED_BLINK_WPS_SUCCESS_INTERVAL_ALPHA);
+			mod_timer(&pLed->BlinkTimer, jiffies +
+				  msecs_to_jiffies(LED_BLINK_WPS_SUCCESS_INTERVAL_ALPHA));
 		} else {
 			pLed->BlinkingLedState = RTW_LED_ON;
-			_set_timer(&(pLed->BlinkTimer), 0);
+			mod_timer(&pLed->BlinkTimer,
+				  jiffies + msecs_to_jiffies(0));
 		}
 		break;
 	case LED_CTL_STOP_WPS_FAIL:
@@ -407,7 +424,8 @@ static void SwLedControlMode1(struct adapter *padapter, enum LED_CTL_MODE LedAct
 			pLed->BlinkingLedState = RTW_LED_OFF;
 		else
 			pLed->BlinkingLedState = RTW_LED_ON;
-		_set_timer(&(pLed->BlinkTimer), LED_BLINK_NO_LINK_INTERVAL_ALPHA);
+		mod_timer(&pLed->BlinkTimer, jiffies +
+			  msecs_to_jiffies(LED_BLINK_NO_LINK_INTERVAL_ALPHA));
 		break;
 	case LED_CTL_POWER_OFF:
 		pLed->CurrLedState = RTW_LED_OFF;
diff --git a/drivers/staging/rtl8188eu/core/rtw_mlme.c b/drivers/staging/rtl8188eu/core/rtw_mlme.c
index d4632da..6c91aa5 100644
--- a/drivers/staging/rtl8188eu/core/rtw_mlme.c
+++ b/drivers/staging/rtl8188eu/core/rtw_mlme.c
@@ -665,7 +665,8 @@ void rtw_surveydone_event_callback(struct adapter	*adapter, u8 *pbuf)
 				set_fwstate(pmlmepriv, _FW_UNDER_LINKING);
 
 				if (rtw_select_and_join_from_scanned_queue(pmlmepriv) == _SUCCESS) {
-					_set_timer(&pmlmepriv->assoc_timer, MAX_JOIN_TIMEOUT);
+					mod_timer(&pmlmepriv->assoc_timer,
+						  jiffies + msecs_to_jiffies(MAX_JOIN_TIMEOUT));
 				} else {
 					struct wlan_bssid_ex    *pdev_network = &(adapter->registrypriv.dev_network);
 					u8 *pibss = adapter->registrypriv.dev_network.MacAddress;
@@ -692,7 +693,8 @@ void rtw_surveydone_event_callback(struct adapter	*adapter, u8 *pbuf)
 			pmlmepriv->to_join = false;
 			s_ret = rtw_select_and_join_from_scanned_queue(pmlmepriv);
 			if (_SUCCESS == s_ret) {
-			     _set_timer(&pmlmepriv->assoc_timer, MAX_JOIN_TIMEOUT);
+			     mod_timer(&pmlmepriv->assoc_timer,
+				       jiffies + msecs_to_jiffies(MAX_JOIN_TIMEOUT));
 			} else if (s_ret == 2) { /* there is no need to wait for join */
 				_clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
 				rtw_indicate_connect(adapter);
@@ -1127,14 +1129,16 @@ void rtw_joinbss_event_prehandle(struct adapter *adapter, u8 *pbuf)
 
 	} else if (pnetwork->join_res == -4) {
 		rtw_reset_securitypriv(adapter);
-		_set_timer(&pmlmepriv->assoc_timer, 1);
+		mod_timer(&pmlmepriv->assoc_timer,
+			  jiffies + msecs_to_jiffies(1));
 
 		if ((check_fwstate(pmlmepriv, _FW_UNDER_LINKING)) == true) {
 			RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("fail! clear _FW_UNDER_LINKING ^^^fw_state=%x\n", get_fwstate(pmlmepriv)));
 			_clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
 		}
 	} else { /* if join_res < 0 (join fails), then try again */
-		_set_timer(&pmlmepriv->assoc_timer, 1);
+		mod_timer(&pmlmepriv->assoc_timer,
+			  jiffies + msecs_to_jiffies(1));
 		_clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
 	}
 
@@ -1360,9 +1364,9 @@ void rtw_cpwm_event_callback(struct adapter *padapter, u8 *pbuf)
 * _rtw_join_timeout_handler - Timeout/faliure handler for CMD JoinBss
 * @adapter: pointer to struct adapter structure
 */
-void _rtw_join_timeout_handler (void *function_context)
+void _rtw_join_timeout_handler (unsigned long data)
 {
-	struct adapter *adapter = function_context;
+	struct adapter *adapter = (struct adapter *)data;
 	struct	mlme_priv *pmlmepriv = &adapter->mlmepriv;
 	int do_join_r;
 
@@ -1402,9 +1406,9 @@ void _rtw_join_timeout_handler (void *function_context)
 * rtw_scan_timeout_handler - Timeout/Faliure handler for CMD SiteSurvey
 * @adapter: pointer to struct adapter structure
 */
-void rtw_scan_timeout_handler (void *function_context)
+void rtw_scan_timeout_handler (unsigned long data)
 {
-	struct adapter *adapter = function_context;
+	struct adapter *adapter = (struct adapter *)data;
 	struct	mlme_priv *pmlmepriv = &adapter->mlmepriv;
 
 	DBG_88E(FUNC_ADPT_FMT" fw_state=%x\n", FUNC_ADPT_ARG(adapter), get_fwstate(pmlmepriv));
@@ -1429,9 +1433,9 @@ static void rtw_auto_scan_handler(struct adapter *padapter)
 	}
 }
 
-void rtw_dynamic_check_timer_handlder(void *function_context)
+void rtw_dynamic_check_timer_handlder(unsigned long data)
 {
-	struct adapter *adapter = (struct adapter *)function_context;
+	struct adapter *adapter = (struct adapter *)data;
 	struct registry_priv *pregistrypriv = &adapter->registrypriv;
 
 	if (!adapter)
@@ -1449,7 +1453,8 @@ void rtw_dynamic_check_timer_handlder(void *function_context)
 		rtw_auto_scan_handler(adapter);
 	}
 exit:
-	_set_timer(&adapter->mlmepriv.dynamic_chk_timer, 2000);
+	mod_timer(&adapter->mlmepriv.dynamic_chk_timer,
+		  jiffies + msecs_to_jiffies(2000));
 }
 
 #define RTW_SCAN_RESULT_EXPIRE 2000
@@ -2037,7 +2042,7 @@ void rtw_update_ht_cap(struct adapter *padapter, u8 *pie, uint ie_len)
 	p = rtw_get_ie(pie+sizeof(struct ndis_802_11_fixed_ie), _HT_CAPABILITY_IE_, &len, ie_len-sizeof(struct ndis_802_11_fixed_ie));
 	if (p && len > 0) {
 		pht_capie = (struct rtw_ieee80211_ht_cap *)(p+2);
-		max_ampdu_sz = (pht_capie->ampdu_params_info & IEEE80211_HT_CAP_AMPDU_FACTOR);
+		max_ampdu_sz = pht_capie->ampdu_params_info & IEEE80211_HT_CAP_AMPDU_FACTOR;
 		max_ampdu_sz = 1 << (max_ampdu_sz+3); /*  max_ampdu_sz (kbytes); */
 		phtpriv->rx_ampdu_maxlen = max_ampdu_sz;
 	}
diff --git a/drivers/staging/rtl8188eu/core/rtw_mlme_ext.c b/drivers/staging/rtl8188eu/core/rtw_mlme_ext.c
index cd12dd7..be9e34a 100644
--- a/drivers/staging/rtl8188eu/core/rtw_mlme_ext.c
+++ b/drivers/staging/rtl8188eu/core/rtw_mlme_ext.c
@@ -1639,7 +1639,7 @@ unsigned int OnAction_back(struct adapter *padapter, struct recv_frame *precv_fr
 			break;
 		case RTW_WLAN_ACTION_ADDBA_RESP: /* ADDBA response */
 			status = get_unaligned_le16(&frame_body[3]);
-			tid = ((frame_body[5] >> 2) & 0x7);
+			tid = (frame_body[5] >> 2) & 0x7;
 			if (status == 0) {	/* successful */
 				DBG_88E("agg_enable for TID=%d\n", tid);
 				psta->htpriv.agg_enable_bitmap |= 1 << tid;
@@ -2491,7 +2491,7 @@ void issue_auth(struct adapter *padapter, struct sta_info *psta, unsigned short
 
 		/* setting IV for auth seq #3 */
 		if ((pmlmeinfo->auth_seq == 3) && (pmlmeinfo->state & WIFI_FW_AUTH_STATE) && (use_shared_key == 1)) {
-			val32 = ((pmlmeinfo->iv++) | (pmlmeinfo->key_index << 30));
+			val32 = (pmlmeinfo->iv++) | (pmlmeinfo->key_index << 30);
 			le_tmp32 = cpu_to_le32(val32);
 			pframe = rtw_set_fixed_ie(pframe, 4, (unsigned char *)&le_tmp32, &(pattrib->pktlen));
 
@@ -3331,7 +3331,7 @@ void issue_action_BA(struct adapter *padapter, unsigned char *raddr, unsigned ch
 			} while (pmlmeinfo->dialogToken == 0);
 			pframe = rtw_set_fixed_ie(pframe, 1, &(pmlmeinfo->dialogToken), &(pattrib->pktlen));
 
-			BA_para_set = (0x1002 | ((status & 0xf) << 2)); /* immediate ack & 64 buffer size */
+			BA_para_set = 0x1002 | ((status & 0xf) << 2); /* immediate ack & 64 buffer size */
 			le_tmp = cpu_to_le16(BA_para_set);
 			pframe = rtw_set_fixed_ie(pframe, 2, (unsigned char *)(&(le_tmp)), &(pattrib->pktlen));
 
@@ -3972,8 +3972,8 @@ void start_clnt_join(struct adapter *padapter)
 		/* and enable a timer */
 		beacon_timeout = decide_wait_for_beacon_timeout(pmlmeinfo->bcn_interval);
 		set_link_timer(pmlmeext, beacon_timeout);
-		_set_timer(&padapter->mlmepriv.assoc_timer,
-			   (REAUTH_TO * REAUTH_LIMIT) + (REASSOC_TO*REASSOC_LIMIT) + beacon_timeout);
+		mod_timer(&padapter->mlmepriv.assoc_timer, jiffies +
+			  msecs_to_jiffies((REAUTH_TO * REAUTH_LIMIT) + (REASSOC_TO * REASSOC_LIMIT) + beacon_timeout));
 
 		pmlmeinfo->state = WIFI_FW_AUTH_NULL | WIFI_FW_STATION_STATE;
 	} else if (caps&cap_IBSS) { /* adhoc client */
@@ -4247,7 +4247,7 @@ void report_survey_event(struct adapter *padapter,
 	if (pcmd_obj == NULL)
 		return;
 
-	cmdsz = (sizeof(struct survey_event) + sizeof(struct C2HEvent_Header));
+	cmdsz = sizeof(struct survey_event) + sizeof(struct C2HEvent_Header);
 	pevtcmd = kzalloc(cmdsz, GFP_ATOMIC);
 	if (pevtcmd == NULL) {
 		kfree(pcmd_obj);
@@ -4299,7 +4299,7 @@ void report_surveydone_event(struct adapter *padapter)
 	if (pcmd_obj == NULL)
 		return;
 
-	cmdsz = (sizeof(struct surveydone_event) + sizeof(struct C2HEvent_Header));
+	cmdsz = sizeof(struct surveydone_event) + sizeof(struct C2HEvent_Header);
 	pevtcmd = kzalloc(cmdsz, GFP_KERNEL);
 	if (pevtcmd == NULL) {
 		kfree(pcmd_obj);
@@ -4345,7 +4345,7 @@ void report_join_res(struct adapter *padapter, int res)
 	if (pcmd_obj == NULL)
 		return;
 
-	cmdsz = (sizeof(struct joinbss_event) + sizeof(struct C2HEvent_Header));
+	cmdsz = sizeof(struct joinbss_event) + sizeof(struct C2HEvent_Header);
 	pevtcmd = kzalloc(cmdsz, GFP_ATOMIC);
 	if (pevtcmd == NULL) {
 		kfree(pcmd_obj);
@@ -4398,7 +4398,7 @@ void report_del_sta_event(struct adapter *padapter, unsigned char *MacAddr, unsi
 	if (pcmd_obj == NULL)
 		return;
 
-	cmdsz = (sizeof(struct stadel_event) + sizeof(struct C2HEvent_Header));
+	cmdsz = sizeof(struct stadel_event) + sizeof(struct C2HEvent_Header);
 	pevtcmd = kzalloc(cmdsz, GFP_KERNEL);
 	if (pevtcmd == NULL) {
 		kfree(pcmd_obj);
@@ -4428,7 +4428,7 @@ void report_del_sta_event(struct adapter *padapter, unsigned char *MacAddr, unsi
 	if (psta)
 		mac_id = (int)psta->mac_id;
 	else
-		mac_id = (-1);
+		mac_id = -1;
 
 	pdel_sta_evt->mac_id = mac_id;
 
@@ -4453,7 +4453,7 @@ void report_add_sta_event(struct adapter *padapter, unsigned char *MacAddr, int
 	if (pcmd_obj == NULL)
 		return;
 
-	cmdsz = (sizeof(struct stassoc_event) + sizeof(struct C2HEvent_Header));
+	cmdsz = sizeof(struct stassoc_event) + sizeof(struct C2HEvent_Header);
 	pevtcmd = kzalloc(cmdsz, GFP_KERNEL);
 	if (pevtcmd == NULL) {
 		kfree(pcmd_obj);
@@ -4835,9 +4835,9 @@ void linked_status_chk(struct adapter *padapter)
 	}
 }
 
-void survey_timer_hdl(void *function_context)
+void survey_timer_hdl(unsigned long data)
 {
-	struct adapter *padapter = function_context;
+	struct adapter *padapter = (struct adapter *)data;
 	struct cmd_obj	*ph2c;
 	struct sitesurvey_parm	*psurveyPara;
 	struct cmd_priv					*pcmdpriv = &padapter->cmdpriv;
@@ -4875,9 +4875,9 @@ exit_survey_timer_hdl:
 	return;
 }
 
-void link_timer_hdl(void *function_context)
+void link_timer_hdl(unsigned long data)
 {
-	struct adapter *padapter = (struct adapter *)function_context;
+	struct adapter *padapter = (struct adapter *)data;
 	struct mlme_ext_priv	*pmlmeext = &padapter->mlmeextpriv;
 	struct mlme_ext_info	*pmlmeinfo = &(pmlmeext->mlmext_info);
 
@@ -4912,9 +4912,9 @@ void link_timer_hdl(void *function_context)
 	return;
 }
 
-void addba_timer_hdl(void *function_context)
+void addba_timer_hdl(unsigned long data)
 {
-	struct sta_info *psta = function_context;
+	struct sta_info *psta = (struct sta_info *)data;
 	struct ht_priv	*phtpriv;
 
 	if (!psta)
@@ -5356,7 +5356,7 @@ u8 set_stakey_hdl(struct adapter *padapter, u8 *pbuf)
 
 		psta = rtw_get_stainfo(pstapriv, pparm->addr);
 		if (psta) {
-			ctrl = (BIT(15) | ((pparm->algorithm) << 2));
+			ctrl = BIT(15) | ((pparm->algorithm) << 2);
 
 			DBG_88E("r871x_set_stakey_hdl(): enc_algorithm=%d\n", pparm->algorithm);
 
@@ -5365,7 +5365,7 @@ u8 set_stakey_hdl(struct adapter *padapter, u8 *pbuf)
 				return H2C_REJECTED;
 			}
 
-			cam_id = (psta->mac_id + 3);/* 0~3 for default key, cmd_id = macid + 3, macid = aid+1; */
+			cam_id = psta->mac_id + 3;/* 0~3 for default key, cmd_id = macid + 3, macid = aid+1; */
 
 			DBG_88E("Write CAM, mac_addr =%x:%x:%x:%x:%x:%x, cam_entry=%d\n", pparm->addr[0],
 				pparm->addr[1], pparm->addr[2], pparm->addr[3], pparm->addr[4],
@@ -5406,7 +5406,8 @@ u8 add_ba_hdl(struct adapter *padapter, unsigned char *pbuf)
 	if (((pmlmeinfo->state & WIFI_FW_ASSOC_SUCCESS) && (pmlmeinfo->HT_enable)) ||
 	    ((pmlmeinfo->state&0x03) == WIFI_FW_AP_STATE)) {
 		issue_action_BA(padapter, pparm->addr, RTW_WLAN_ACTION_ADDBA_REQ, (u16)pparm->tid);
-		_set_timer(&psta->addba_retry_timer, ADDBA_TO);
+		mod_timer(&psta->addba_retry_timer,
+			  jiffies + msecs_to_jiffies(ADDBA_TO));
 	} else {
 		psta->htpriv.candidate_tid_bitmap &= ~BIT(pparm->tid);
 	}
@@ -5430,15 +5431,14 @@ u8 set_tx_beacon_cmd(struct adapter *padapter)
 		goto exit;
 	}
 
-	ptxBeacon_parm = kzalloc(sizeof(struct wlan_bssid_ex), GFP_KERNEL);
+	ptxBeacon_parm = kmemdup(&(pmlmeinfo->network),
+				sizeof(struct wlan_bssid_ex), GFP_KERNEL);
 	if (ptxBeacon_parm == NULL) {
 		kfree(ph2c);
 		res = _FAIL;
 		goto exit;
 	}
 
-	memcpy(ptxBeacon_parm, &(pmlmeinfo->network), sizeof(struct wlan_bssid_ex));
-
 	len_diff = update_hidden_ssid(ptxBeacon_parm->IEs+_BEACON_IE_OFFSET_,
 				      ptxBeacon_parm->IELength-_BEACON_IE_OFFSET_,
 				      pmlmeinfo->hidden_ssid_mode);
diff --git a/drivers/staging/rtl8188eu/core/rtw_pwrctrl.c b/drivers/staging/rtl8188eu/core/rtw_pwrctrl.c
index df463a29..ec0a8a4 100644
--- a/drivers/staging/rtl8188eu/core/rtw_pwrctrl.c
+++ b/drivers/staging/rtl8188eu/core/rtw_pwrctrl.c
@@ -281,9 +281,9 @@ exit:
 	pwrpriv->ps_processing = false;
 }
 
-static void pwr_state_check_handler(void *FunctionContext)
+static void pwr_state_check_handler(unsigned long data)
 {
-	struct adapter *padapter = FunctionContext;
+	struct adapter *padapter = (struct adapter *)data;
 	rtw_ps_cmd(padapter);
 }
 
@@ -544,7 +544,9 @@ void rtw_init_pwrctrl_priv(struct adapter *padapter)
 
 	pwrctrlpriv->btcoex_rfon = false;
 
-	_init_timer(&(pwrctrlpriv->pwr_state_check_timer), padapter->pnetdev, pwr_state_check_handler, (u8 *)padapter);
+	setup_timer(&pwrctrlpriv->pwr_state_check_timer,
+		    pwr_state_check_handler,
+		    (unsigned long)padapter);
 }
 
 inline void rtw_set_ips_deny(struct adapter *padapter, u32 ms)
diff --git a/drivers/staging/rtl8188eu/core/rtw_recv.c b/drivers/staging/rtl8188eu/core/rtw_recv.c
index bd79e9e..cda725a 100644
--- a/drivers/staging/rtl8188eu/core/rtw_recv.c
+++ b/drivers/staging/rtl8188eu/core/rtw_recv.c
@@ -41,7 +41,7 @@ static u8 rtw_rfc1042_header[] = {
        0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00
 };
 
-void rtw_signal_stat_timer_hdl(RTW_TIMER_HDL_ARGS);
+void rtw_signal_stat_timer_hdl(unsigned long data);
 
 void _rtw_init_sta_recv_priv(struct sta_recv_priv *psta_recvpriv)
 {
@@ -98,7 +98,9 @@ int _rtw_init_recv_priv(struct recv_priv *precvpriv, struct adapter *padapter)
 
 	res = rtw_hal_init_recv_priv(padapter);
 
-	_init_timer(&precvpriv->signal_stat_timer, padapter->pnetdev, RTW_TIMER_HDL_NAME(signal_stat), padapter);
+	setup_timer(&precvpriv->signal_stat_timer,
+		    rtw_signal_stat_timer_hdl,
+		    (unsigned long)padapter);
 
 	precvpriv->signal_stat_sampling_interval = 1000; /* ms */
 
@@ -1927,7 +1929,8 @@ static int recv_indicatepkt_reorder(struct adapter *padapter,
 
 	/* recv_indicatepkts_in_order(padapter, preorder_ctrl, true); */
 	if (recv_indicatepkts_in_order(padapter, preorder_ctrl, false)) {
-		_set_timer(&preorder_ctrl->reordering_ctrl_timer, REORDER_WAIT_TIME);
+		mod_timer(&preorder_ctrl->reordering_ctrl_timer,
+			  jiffies + msecs_to_jiffies(REORDER_WAIT_TIME));
 		spin_unlock_bh(&ppending_recvframe_queue->lock);
 	} else {
 		spin_unlock_bh(&ppending_recvframe_queue->lock);
@@ -1945,9 +1948,9 @@ _err_exit:
 	return _FAIL;
 }
 
-void rtw_reordering_ctrl_timeout_handler(void *pcontext)
+void rtw_reordering_ctrl_timeout_handler(unsigned long data)
 {
-	struct recv_reorder_ctrl *preorder_ctrl = pcontext;
+	struct recv_reorder_ctrl *preorder_ctrl = (struct recv_reorder_ctrl *)data;
 	struct adapter *padapter = preorder_ctrl->padapter;
 	struct __queue *ppending_recvframe_queue = &preorder_ctrl->pending_recvframe_queue;
 
@@ -1957,7 +1960,8 @@ void rtw_reordering_ctrl_timeout_handler(void *pcontext)
 	spin_lock_bh(&ppending_recvframe_queue->lock);
 
 	if (recv_indicatepkts_in_order(padapter, preorder_ctrl, true) == true)
-		_set_timer(&preorder_ctrl->reordering_ctrl_timer, REORDER_WAIT_TIME);
+		mod_timer(&preorder_ctrl->reordering_ctrl_timer,
+			  jiffies + msecs_to_jiffies(REORDER_WAIT_TIME));
 
 	spin_unlock_bh(&ppending_recvframe_queue->lock);
 }
@@ -2130,9 +2134,9 @@ _recv_entry_drop:
 	return ret;
 }
 
-void rtw_signal_stat_timer_hdl(RTW_TIMER_HDL_ARGS)
+void rtw_signal_stat_timer_hdl(unsigned long data)
 {
-	struct adapter *adapter = (struct adapter *)FunctionContext;
+	struct adapter *adapter = (struct adapter *)data;
 	struct recv_priv *recvpriv = &adapter->recvpriv;
 
 	u32 tmp_s, tmp_q;
@@ -2159,7 +2163,7 @@ void rtw_signal_stat_timer_hdl(RTW_TIMER_HDL_ARGS)
 
 		/* update value of signal_strength, rssi, signal_qual */
 		if (check_fwstate(&adapter->mlmepriv, _FW_UNDER_SURVEY) == false) {
-			tmp_s = (avg_signal_strength+(_alpha-1)*recvpriv->signal_strength);
+			tmp_s = avg_signal_strength+(_alpha-1)*recvpriv->signal_strength;
 			if (tmp_s % _alpha)
 				tmp_s = tmp_s/_alpha + 1;
 			else
@@ -2167,7 +2171,7 @@ void rtw_signal_stat_timer_hdl(RTW_TIMER_HDL_ARGS)
 			if (tmp_s > 100)
 				tmp_s = 100;
 
-			tmp_q = (avg_signal_qual+(_alpha-1)*recvpriv->signal_qual);
+			tmp_q = avg_signal_qual+(_alpha-1)*recvpriv->signal_qual;
 			if (tmp_q % _alpha)
 				tmp_q = tmp_q/_alpha + 1;
 			else
diff --git a/drivers/staging/rtl8188eu/core/rtw_security.c b/drivers/staging/rtl8188eu/core/rtw_security.c
index bd8d60a..d870a5c 100644
--- a/drivers/staging/rtl8188eu/core/rtw_security.c
+++ b/drivers/staging/rtl8188eu/core/rtw_security.c
@@ -854,7 +854,7 @@ static void mix_column(u8 *in, u8 *out)
 	u8 add1b[4];
 	u8 add1bf7[4];
 	u8 rotl[4];
-	u8 swap_halfs[4];
+	u8 swap_halves[4];
 	u8 andf7[4];
 	u8 rotr[4];
 	u8 temp[4];
@@ -866,10 +866,10 @@ static void mix_column(u8 *in, u8 *out)
 			add1b[i] = 0x00;
 	}
 
-	swap_halfs[0] = in[2];    /* Swap halves */
-	swap_halfs[1] = in[3];
-	swap_halfs[2] = in[0];
-	swap_halfs[3] = in[1];
+	swap_halves[0] = in[2];    /* Swap halves */
+	swap_halves[1] = in[3];
+	swap_halves[2] = in[0];
+	swap_halves[3] = in[1];
 
 	rotl[0] = in[3];	/* Rotate left 8 bits */
 	rotl[1] = in[0];
@@ -900,7 +900,7 @@ static void mix_column(u8 *in, u8 *out)
 	rotr[3] = temp[0];
 
 	xor_32(add1bf7, rotr, temp);
-	xor_32(swap_halfs, rotl, tempb);
+	xor_32(swap_halves, rotl, tempb);
 	xor_32(temp, tempb, out);
 }
 
@@ -1079,7 +1079,7 @@ static int aes_cipher(u8 *key, uint hdrlen, u8 *pframe, uint plen)
 	uint	frtype  = GetFrameType(pframe);
 	uint	frsubtype  = GetFrameSubType(pframe);
 
-	frsubtype = frsubtype>>4;
+	frsubtype >>= 4;
 
 	memset((void *)mic_iv, 0, 16);
 	memset((void *)mic_header1, 0, 16);
@@ -1122,7 +1122,7 @@ static int aes_cipher(u8 *key, uint hdrlen, u8 *pframe, uint plen)
 	num_blocks = plen / 16;
 
 	/* Find start of payload */
-	payload_index = (hdrlen + 8);
+	payload_index = hdrlen + 8;
 
 	/* Calculate MIC */
 	aes128k128d(key, mic_iv, aes_out);
@@ -1277,7 +1277,7 @@ static int aes_decipher(u8 *key, uint	hdrlen,
 /*	uint	offset = 0; */
 	uint	frtype  = GetFrameType(pframe);
 	uint	frsubtype  = GetFrameSubType(pframe);
-	frsubtype = frsubtype>>4;
+	frsubtype >>= 4;
 
 	memset((void *)mic_iv, 0, 16);
 	memset((void *)mic_header1, 0, 16);
@@ -1366,7 +1366,7 @@ static int aes_decipher(u8 *key, uint	hdrlen,
 	num_blocks = (plen-8) / 16;
 
 	/* Find start of payload */
-	payload_index = (hdrlen + 8);
+	payload_index = hdrlen + 8;
 
 	/* Calculate MIC */
 	aes128k128d(key, mic_iv, aes_out);
diff --git a/drivers/staging/rtl8188eu/core/rtw_sreset.c b/drivers/staging/rtl8188eu/core/rtw_sreset.c
index cd4e344..e725a47 100644
--- a/drivers/staging/rtl8188eu/core/rtw_sreset.c
+++ b/drivers/staging/rtl8188eu/core/rtw_sreset.c
@@ -47,7 +47,7 @@ u8 sreset_get_wifi_status(struct adapter *padapter)
 
 	if (WIFI_STATUS_SUCCESS != psrtpriv->Wifi_Error_Status) {
 		DBG_88E("==>%s error_status(0x%x)\n", __func__, psrtpriv->Wifi_Error_Status);
-		status = (psrtpriv->Wifi_Error_Status & (~(USB_READ_PORT_FAIL|USB_WRITE_PORT_FAIL)));
+		status = psrtpriv->Wifi_Error_Status & (~(USB_READ_PORT_FAIL|USB_WRITE_PORT_FAIL));
 	}
 	DBG_88E("==> %s wifi_status(0x%x)\n", __func__, status);
 
diff --git a/drivers/staging/rtl8188eu/core/rtw_wlan_util.c b/drivers/staging/rtl8188eu/core/rtw_wlan_util.c
index a3ffc69..2b37175 100644
--- a/drivers/staging/rtl8188eu/core/rtw_wlan_util.c
+++ b/drivers/staging/rtl8188eu/core/rtw_wlan_util.c
@@ -88,35 +88,25 @@ int cckratesonly_included(unsigned char *rate, int ratelen)
 
 unsigned char networktype_to_raid(unsigned char network_type)
 {
-	unsigned char raid;
-
 	switch (network_type) {
 	case WIRELESS_11B:
-		raid = RATR_INX_WIRELESS_B;
-		break;
+		return RATR_INX_WIRELESS_B;
 	case WIRELESS_11A:
 	case WIRELESS_11G:
-		raid = RATR_INX_WIRELESS_G;
-		break;
+		return RATR_INX_WIRELESS_G;
 	case WIRELESS_11BG:
-		raid = RATR_INX_WIRELESS_GB;
-		break;
+		return RATR_INX_WIRELESS_GB;
 	case WIRELESS_11_24N:
 	case WIRELESS_11_5N:
-		raid = RATR_INX_WIRELESS_N;
-		break;
+		return RATR_INX_WIRELESS_N;
 	case WIRELESS_11A_5N:
 	case WIRELESS_11G_24N:
-		raid = RATR_INX_WIRELESS_NG;
-		break;
+		return  RATR_INX_WIRELESS_NG;
 	case WIRELESS_11BG_24N:
-		raid = RATR_INX_WIRELESS_NGB;
-		break;
+		return RATR_INX_WIRELESS_NGB;
 	default:
-		raid = RATR_INX_WIRELESS_GB;
-		break;
+		return RATR_INX_WIRELESS_GB;
 	}
-	return raid;
 }
 
 u8 judge_network_type(struct adapter *padapter, unsigned char *rate, int ratelen)
@@ -146,47 +136,34 @@ u8 judge_network_type(struct adapter *padapter, unsigned char *rate, int ratelen
 
 static unsigned char ratetbl_val_2wifirate(unsigned char rate)
 {
-	unsigned char val = 0;
-
 	switch (rate & 0x7f) {
 	case 0:
-		val = IEEE80211_CCK_RATE_1MB;
-		break;
+		return IEEE80211_CCK_RATE_1MB;
 	case 1:
-		val = IEEE80211_CCK_RATE_2MB;
-		break;
+		return IEEE80211_CCK_RATE_2MB;
 	case 2:
-		val = IEEE80211_CCK_RATE_5MB;
-		break;
+		return IEEE80211_CCK_RATE_5MB;
 	case 3:
-		val = IEEE80211_CCK_RATE_11MB;
-		break;
+		return IEEE80211_CCK_RATE_11MB;
 	case 4:
-		val = IEEE80211_OFDM_RATE_6MB;
-		break;
+		return IEEE80211_OFDM_RATE_6MB;
 	case 5:
-		val = IEEE80211_OFDM_RATE_9MB;
-		break;
+		return IEEE80211_OFDM_RATE_9MB;
 	case 6:
-		val = IEEE80211_OFDM_RATE_12MB;
-		break;
+		return IEEE80211_OFDM_RATE_12MB;
 	case 7:
-		val = IEEE80211_OFDM_RATE_18MB;
-		break;
+		return IEEE80211_OFDM_RATE_18MB;
 	case 8:
-		val = IEEE80211_OFDM_RATE_24MB;
-		break;
+		return IEEE80211_OFDM_RATE_24MB;
 	case 9:
-		val = IEEE80211_OFDM_RATE_36MB;
-		break;
+		return IEEE80211_OFDM_RATE_36MB;
 	case 10:
-		val = IEEE80211_OFDM_RATE_48MB;
-		break;
+		return IEEE80211_OFDM_RATE_48MB;
 	case 11:
-		val = IEEE80211_OFDM_RATE_54MB;
-		break;
+		return IEEE80211_OFDM_RATE_54MB;
+	default:
+		return 0;
 	}
-	return val;
 }
 
 static int is_basicrate(struct adapter *padapter, unsigned char rate)
@@ -485,14 +462,14 @@ void write_cam(struct adapter *padapter, u8 entry, u16 ctrl, u8 *mac, u8 *key)
 	for (j = 5; j >= 0; j--) {
 		switch (j) {
 		case 0:
-			val = (ctrl | (mac[0] << 16) | (mac[1] << 24));
+			val = ctrl | (mac[0] << 16) | (mac[1] << 24);
 			break;
 		case 1:
-			val = (mac[2] | (mac[3] << 8) | (mac[4] << 16) | (mac[5] << 24));
+			val = mac[2] | (mac[3] << 8) | (mac[4] << 16) | (mac[5] << 24);
 			break;
 		default:
 			i = (j - 2) << 2;
-			val = (key[i] | (key[i+1] << 8) | (key[i+2] << 16) | (key[i+3] << 24));
+			val = key[i] | (key[i+1] << 8) | (key[i+2] << 16) | (key[i+3] << 24);
 			break;
 		}
 
@@ -587,7 +564,7 @@ void WMMOnAssocRsp(struct adapter *padapter)
 		/* AIFS = AIFSN * slot time + SIFS - r2t phy delay */
 		AIFS = (pmlmeinfo->WMM_param.ac_param[i].ACI_AIFSN & 0x0f) * pmlmeinfo->slotTime + aSifsTime;
 
-		ECWMin = (pmlmeinfo->WMM_param.ac_param[i].CW & 0x0f);
+		ECWMin = pmlmeinfo->WMM_param.ac_param[i].CW & 0x0f;
 		ECWMax = (pmlmeinfo->WMM_param.ac_param[i].CW & 0xf0) >> 4;
 		TXOP = le16_to_cpu(pmlmeinfo->WMM_param.ac_param[i].TXOP_limit);
 
@@ -659,8 +636,6 @@ void WMMOnAssocRsp(struct adapter *padapter)
 		pxmitpriv->wmm_para_seq[i] = inx[i];
 		DBG_88E("wmm_para_seq(%d): %d\n", i, pxmitpriv->wmm_para_seq[i]);
 	}
-
-	return;
 }
 
 static void bwmode_update_check(struct adapter *padapter, struct ndis_802_11_var_ie *pIE)
@@ -766,14 +741,14 @@ void HT_caps_handler(struct adapter *padapter, struct ndis_802_11_var_ie *pIE)
 		} else {
 			/* modify from  fw by Thomas 2010/11/17 */
 			if ((pmlmeinfo->HT_caps.u.HT_cap_element.AMPDU_para & 0x3) > (pIE->data[i] & 0x3))
-				max_AMPDU_len = (pIE->data[i] & 0x3);
+				max_AMPDU_len = pIE->data[i] & 0x3;
 			else
-				max_AMPDU_len = (pmlmeinfo->HT_caps.u.HT_cap_element.AMPDU_para & 0x3);
+				max_AMPDU_len = pmlmeinfo->HT_caps.u.HT_cap_element.AMPDU_para & 0x3;
 
 			if ((pmlmeinfo->HT_caps.u.HT_cap_element.AMPDU_para & 0x1c) > (pIE->data[i] & 0x1c))
-				min_MPDU_spacing = (pmlmeinfo->HT_caps.u.HT_cap_element.AMPDU_para & 0x1c);
+				min_MPDU_spacing = pmlmeinfo->HT_caps.u.HT_cap_element.AMPDU_para & 0x1c;
 			else
-				min_MPDU_spacing = (pIE->data[i] & 0x1c);
+				min_MPDU_spacing = pIE->data[i] & 0x1c;
 
 			pmlmeinfo->HT_caps.u.HT_cap_element.AMPDU_para = max_AMPDU_len | min_MPDU_spacing;
 		}
@@ -788,7 +763,6 @@ void HT_caps_handler(struct adapter *padapter, struct ndis_802_11_var_ie *pIE)
 		else
 			pmlmeinfo->HT_caps.u.HT_cap_element.MCS_rate[i] &= MCS_rate_2R[i];
 	}
-	return;
 }
 
 void HT_info_handler(struct adapter *padapter, struct ndis_802_11_var_ie *pIE)
@@ -809,7 +783,6 @@ void HT_info_handler(struct adapter *padapter, struct ndis_802_11_var_ie *pIE)
 
 	pmlmeinfo->HT_info_enable = 1;
 	memcpy(&(pmlmeinfo->HT_info), pIE->data, pIE->Length);
-	return;
 }
 
 void HTOnAssocRsp(struct adapter *padapter)
@@ -1221,48 +1194,36 @@ unsigned int is_ap_in_wep(struct adapter *padapter)
 
 static int wifirate2_ratetbl_inx(unsigned char rate)
 {
-	int	inx = 0;
 	rate = rate & 0x7f;
 
 	switch (rate) {
 	case 54*2:
-		inx = 11;
-		break;
+		return 11;
 	case 48*2:
-		inx = 10;
-		break;
+		return 10;
 	case 36*2:
-		inx = 9;
-		break;
+		return 9;
 	case 24*2:
-		inx = 8;
-		break;
+		return 8;
 	case 18*2:
-		inx = 7;
-		break;
+		return 7;
 	case 12*2:
-		inx = 6;
-		break;
+		return 6;
 	case 9*2:
-		inx = 5;
-		break;
+		return 5;
 	case 6*2:
-		inx = 4;
-		break;
+		return 4;
 	case 11*2:
-		inx = 3;
-		break;
+		return 3;
 	case 11:
-		inx = 2;
-		break;
+		return 2;
 	case 2*2:
-		inx = 1;
-		break;
+		return 1;
 	case 1*2:
-		inx = 0;
-		break;
+		return 0;
+	default:
+		return 0;
 	}
-	return inx;
 }
 
 unsigned int update_basic_rate(unsigned char *ptn, unsigned int ptn_sz)
@@ -1295,7 +1256,7 @@ unsigned int update_MSC_rate(struct HT_caps_element *pHT_caps)
 {
 	unsigned int mask = 0;
 
-	mask = ((pHT_caps->u.HT_cap_element.MCS_rate[0] << 12) | (pHT_caps->u.HT_cap_element.MCS_rate[1] << 20));
+	mask = (pHT_caps->u.HT_cap_element.MCS_rate[0] << 12) | (pHT_caps->u.HT_cap_element.MCS_rate[1] << 20);
 
 	return mask;
 }
@@ -1309,7 +1270,7 @@ int support_short_GI(struct adapter *padapter, struct HT_caps_element *pHT_caps)
 	if (!(pmlmeinfo->HT_enable))
 		return _FAIL;
 
-	if ((pmlmeinfo->assoc_AP_vendor == HT_IOT_PEER_RALINK))
+	if (pmlmeinfo->assoc_AP_vendor == HT_IOT_PEER_RALINK)
 		return _FAIL;
 
 	bit_offset = (pmlmeext->cur_bwmode & HT_CHANNEL_WIDTH_40) ? 6 : 5;
diff --git a/drivers/staging/rtl8188eu/core/rtw_xmit.c b/drivers/staging/rtl8188eu/core/rtw_xmit.c
index 7a71df1..fda169d 100644
--- a/drivers/staging/rtl8188eu/core/rtw_xmit.c
+++ b/drivers/staging/rtl8188eu/core/rtw_xmit.c
@@ -1634,23 +1634,15 @@ void rtw_alloc_hwxmits(struct adapter *padapter)
 
 	pxmitpriv->hwxmit_entry = HWXMIT_ENTRY;
 
-	pxmitpriv->hwxmits = kzalloc(sizeof(struct hw_xmit) * pxmitpriv->hwxmit_entry, GFP_KERNEL);
+	pxmitpriv->hwxmits = kcalloc(pxmitpriv->hwxmit_entry,
+				     sizeof(struct hw_xmit), GFP_KERNEL);
 
 	hwxmits = pxmitpriv->hwxmits;
 
-	if (pxmitpriv->hwxmit_entry == 5) {
-		hwxmits[0] .sta_queue = &pxmitpriv->bm_pending;
-		hwxmits[1] .sta_queue = &pxmitpriv->vo_pending;
-		hwxmits[2] .sta_queue = &pxmitpriv->vi_pending;
-		hwxmits[3] .sta_queue = &pxmitpriv->bk_pending;
-		hwxmits[4] .sta_queue = &pxmitpriv->be_pending;
-	} else if (pxmitpriv->hwxmit_entry == 4) {
-		hwxmits[0] .sta_queue = &pxmitpriv->vo_pending;
-		hwxmits[1] .sta_queue = &pxmitpriv->vi_pending;
-		hwxmits[2] .sta_queue = &pxmitpriv->be_pending;
-		hwxmits[3] .sta_queue = &pxmitpriv->bk_pending;
-	} else {
-	}
+	hwxmits[0] .sta_queue = &pxmitpriv->vo_pending;
+	hwxmits[1] .sta_queue = &pxmitpriv->vi_pending;
+	hwxmits[2] .sta_queue = &pxmitpriv->be_pending;
+	hwxmits[3] .sta_queue = &pxmitpriv->bk_pending;
 }
 
 void rtw_free_hwxmits(struct adapter *padapter)
diff --git a/drivers/staging/rtl8188eu/hal/Hal8188ERateAdaptive.c b/drivers/staging/rtl8188eu/hal/Hal8188ERateAdaptive.c
index 3c651d5..082f0ca 100644
--- a/drivers/staging/rtl8188eu/hal/Hal8188ERateAdaptive.c
+++ b/drivers/staging/rtl8188eu/hal/Hal8188ERateAdaptive.c
@@ -115,17 +115,21 @@ static void odm_SetTxRPTTiming_8188E(
 	}
 	pRaInfo->RptTime = DynamicTxRPTTiming[idx];
 
-	ODM_RT_TRACE(dm_odm, ODM_COMP_RATE_ADAPTIVE, ODM_DBG_LOUD, ("pRaInfo->RptTime = 0x%x\n", pRaInfo->RptTime));
+	ODM_RT_TRACE(dm_odm, ODM_COMP_RATE_ADAPTIVE, ODM_DBG_LOUD,
+			("pRaInfo->RptTime = 0x%x\n", pRaInfo->RptTime));
 }
 
-static int odm_RateDown_8188E(struct odm_dm_struct *dm_odm, struct odm_ra_info *pRaInfo)
+static int odm_RateDown_8188E(struct odm_dm_struct *dm_odm,
+				struct odm_ra_info *pRaInfo)
 {
 	u8 RateID, LowestRate, HighestRate;
 	u8 i;
 
-	ODM_RT_TRACE(dm_odm, ODM_COMP_RATE_ADAPTIVE, ODM_DBG_TRACE, ("=====>odm_RateDown_8188E()\n"));
+	ODM_RT_TRACE(dm_odm, ODM_COMP_RATE_ADAPTIVE,
+			ODM_DBG_TRACE, ("=====>odm_RateDown_8188E()\n"));
 	if (NULL == pRaInfo) {
-		ODM_RT_TRACE(dm_odm, ODM_COMP_RATE_ADAPTIVE, ODM_DBG_LOUD, ("odm_RateDown_8188E(): pRaInfo is NULL\n"));
+		ODM_RT_TRACE(dm_odm, ODM_COMP_RATE_ADAPTIVE, ODM_DBG_LOUD,
+				("odm_RateDown_8188E(): pRaInfo is NULL\n"));
 		return -1;
 	}
 	RateID = pRaInfo->PreRate;
@@ -167,10 +171,15 @@ RateDownFinish:
 
 	pRaInfo->DecisionRate = RateID;
 	odm_SetTxRPTTiming_8188E(dm_odm, pRaInfo, 2);
-	ODM_RT_TRACE(dm_odm, ODM_COMP_RATE_ADAPTIVE, ODM_DBG_LOUD, ("Rate down, RPT Timing default\n"));
-	ODM_RT_TRACE(dm_odm, ODM_COMP_RATE_ADAPTIVE, ODM_DBG_TRACE, ("RAWaitingCounter %d, RAPendingCounter %d", pRaInfo->RAWaitingCounter, pRaInfo->RAPendingCounter));
-	ODM_RT_TRACE(dm_odm, ODM_COMP_RATE_ADAPTIVE, ODM_DBG_LOUD, ("Rate down to RateID %d RateSGI %d\n", RateID, pRaInfo->RateSGI));
-	ODM_RT_TRACE(dm_odm, ODM_COMP_RATE_ADAPTIVE, ODM_DBG_TRACE, ("<===== odm_RateDown_8188E()\n"));
+	ODM_RT_TRACE(dm_odm, ODM_COMP_RATE_ADAPTIVE,
+			ODM_DBG_LOUD, ("Rate down, RPT Timing default\n"));
+	ODM_RT_TRACE(dm_odm, ODM_COMP_RATE_ADAPTIVE, ODM_DBG_TRACE,
+			("RAWaitingCounter %d, RAPendingCounter %d",
+			 pRaInfo->RAWaitingCounter, pRaInfo->RAPendingCounter));
+	ODM_RT_TRACE(dm_odm, ODM_COMP_RATE_ADAPTIVE, ODM_DBG_LOUD,
+			("Rate down to RateID %d RateSGI %d\n", RateID, pRaInfo->RateSGI));
+	ODM_RT_TRACE(dm_odm, ODM_COMP_RATE_ADAPTIVE, ODM_DBG_TRACE,
+			("<===== odm_RateDown_8188E()\n"));
 	return 0;
 }
 
@@ -182,9 +191,11 @@ static int odm_RateUp_8188E(
 	u8 RateID, HighestRate;
 	u8 i;
 
-	ODM_RT_TRACE(dm_odm, ODM_COMP_RATE_ADAPTIVE, ODM_DBG_TRACE, ("=====>odm_RateUp_8188E()\n"));
+	ODM_RT_TRACE(dm_odm, ODM_COMP_RATE_ADAPTIVE,
+			ODM_DBG_TRACE, ("=====>odm_RateUp_8188E()\n"));
 	if (NULL == pRaInfo) {
-		ODM_RT_TRACE(dm_odm, ODM_COMP_RATE_ADAPTIVE, ODM_DBG_LOUD, ("odm_RateUp_8188E(): pRaInfo is NULL\n"));
+		ODM_RT_TRACE(dm_odm, ODM_COMP_RATE_ADAPTIVE, ODM_DBG_LOUD,
+				("odm_RateUp_8188E(): pRaInfo is NULL\n"));
 		return -1;
 	}
 	RateID = pRaInfo->PreRate;
@@ -200,7 +211,8 @@ static int odm_RateUp_8188E(
 		goto RateUpfinish;
 	}
 	odm_SetTxRPTTiming_8188E(dm_odm, pRaInfo, 0);
-	ODM_RT_TRACE(dm_odm, ODM_COMP_RATE_ADAPTIVE, ODM_DBG_LOUD, ("odm_RateUp_8188E():Decrease RPT Timing\n"));
+	ODM_RT_TRACE(dm_odm, ODM_COMP_RATE_ADAPTIVE, ODM_DBG_LOUD,
+			("odm_RateUp_8188E():Decrease RPT Timing\n"));
 
 	if (RateID < HighestRate) {
 		for (i = RateID+1; i <= HighestRate; i++) {
@@ -218,15 +230,20 @@ static int odm_RateUp_8188E(
 		RateID = HighestRate;
 	}
 RateUpfinish:
-	if (pRaInfo->RAWaitingCounter == (4+PendingForRateUpFail[pRaInfo->RAPendingCounter]))
+	if (pRaInfo->RAWaitingCounter ==
+		(4+PendingForRateUpFail[pRaInfo->RAPendingCounter]))
 		pRaInfo->RAWaitingCounter = 0;
 	else
 		pRaInfo->RAWaitingCounter++;
 
 	pRaInfo->DecisionRate = RateID;
-	ODM_RT_TRACE(dm_odm, ODM_COMP_RATE_ADAPTIVE, ODM_DBG_LOUD, ("Rate up to RateID %d\n", RateID));
-	ODM_RT_TRACE(dm_odm, ODM_COMP_RATE_ADAPTIVE, ODM_DBG_TRACE, ("RAWaitingCounter %d, RAPendingCounter %d", pRaInfo->RAWaitingCounter, pRaInfo->RAPendingCounter));
-	ODM_RT_TRACE(dm_odm, ODM_COMP_RATE_ADAPTIVE, ODM_DBG_TRACE, ("<===== odm_RateUp_8188E()\n"));
+	ODM_RT_TRACE(dm_odm, ODM_COMP_RATE_ADAPTIVE, ODM_DBG_LOUD,
+			("Rate up to RateID %d\n", RateID));
+	ODM_RT_TRACE(dm_odm, ODM_COMP_RATE_ADAPTIVE, ODM_DBG_TRACE,
+			("RAWaitingCounter %d, RAPendingCounter %d",
+			 pRaInfo->RAWaitingCounter, pRaInfo->RAPendingCounter));
+	ODM_RT_TRACE(dm_odm, ODM_COMP_RATE_ADAPTIVE,
+			ODM_DBG_TRACE, ("<===== odm_RateUp_8188E()\n"));
 	return 0;
 }
 
@@ -243,11 +260,12 @@ static void odm_RateDecision_8188E(struct odm_dm_struct *dm_odm,
 		struct odm_ra_info *pRaInfo
 	)
 {
-	u8 RateID = 0, RtyPtID = 0, PenaltyID1 = 0, PenaltyID2 = 0;
+	u8 RateID = 0, RtyPtID = 0, PenaltyID1 = 0, PenaltyID2 = 0, i = 0;
 	/* u32 pool_retry; */
 	static u8 DynamicTxRPTTimingCounter;
 
-	ODM_RT_TRACE(dm_odm, ODM_COMP_RATE_ADAPTIVE, ODM_DBG_TRACE, ("=====>odm_RateDecision_8188E()\n"));
+	ODM_RT_TRACE(dm_odm, ODM_COMP_RATE_ADAPTIVE, ODM_DBG_TRACE,
+			("=====>odm_RateDecision_8188E()\n"));
 
 	if (pRaInfo->Active && (pRaInfo->TOTAL > 0)) { /*  STA used and data packet exits */
 		if ((pRaInfo->RssiStaRA < (pRaInfo->PreRssiStaRA - 3)) ||
@@ -268,14 +286,14 @@ static void odm_RateDecision_8188E(struct odm_dm_struct *dm_odm,
 
 		ODM_RT_TRACE(dm_odm, ODM_COMP_RATE_ADAPTIVE, ODM_DBG_TRACE,
 			     (" NscDown init is %d\n", pRaInfo->NscDown));
-		pRaInfo->NscDown += pRaInfo->RTY[0] * RETRY_PENALTY[PenaltyID1][0];
-		pRaInfo->NscDown += pRaInfo->RTY[1] * RETRY_PENALTY[PenaltyID1][1];
-		pRaInfo->NscDown += pRaInfo->RTY[2] * RETRY_PENALTY[PenaltyID1][2];
-		pRaInfo->NscDown += pRaInfo->RTY[3] * RETRY_PENALTY[PenaltyID1][3];
-		pRaInfo->NscDown += pRaInfo->RTY[4] * RETRY_PENALTY[PenaltyID1][4];
+
+		for (i = 0 ; i <= 4 ; i++)
+			pRaInfo->NscDown += pRaInfo->RTY[i] * RETRY_PENALTY[PenaltyID1][i];
+
 		ODM_RT_TRACE(dm_odm, ODM_COMP_RATE_ADAPTIVE, ODM_DBG_TRACE,
-			     (" NscDown is %d, total*penalty[5] is %d\n",
-			     pRaInfo->NscDown, (pRaInfo->TOTAL * RETRY_PENALTY[PenaltyID1][5])));
+			     (" NscDown is %d, total*penalty[5] is %d\n", pRaInfo->NscDown,
+			      (pRaInfo->TOTAL * RETRY_PENALTY[PenaltyID1][5])));
+
 		if (pRaInfo->NscDown > (pRaInfo->TOTAL * RETRY_PENALTY[PenaltyID1][5]))
 			pRaInfo->NscDown -= pRaInfo->TOTAL * RETRY_PENALTY[PenaltyID1][5];
 		else
@@ -285,14 +303,14 @@ static void odm_RateDecision_8188E(struct odm_dm_struct *dm_odm,
 		PenaltyID2 = RETRY_PENALTY_UP_IDX[RateID];
 		ODM_RT_TRACE(dm_odm, ODM_COMP_RATE_ADAPTIVE, ODM_DBG_TRACE,
 			     (" NscUp init is %d\n", pRaInfo->NscUp));
-		pRaInfo->NscUp += pRaInfo->RTY[0] * RETRY_PENALTY[PenaltyID2][0];
-		pRaInfo->NscUp += pRaInfo->RTY[1] * RETRY_PENALTY[PenaltyID2][1];
-		pRaInfo->NscUp += pRaInfo->RTY[2] * RETRY_PENALTY[PenaltyID2][2];
-		pRaInfo->NscUp += pRaInfo->RTY[3] * RETRY_PENALTY[PenaltyID2][3];
-		pRaInfo->NscUp += pRaInfo->RTY[4] * RETRY_PENALTY[PenaltyID2][4];
+
+		for (i = 0 ; i <= 4 ; i++)
+			pRaInfo->NscUp += pRaInfo->RTY[i] * RETRY_PENALTY[PenaltyID2][i];
+
 		ODM_RT_TRACE(dm_odm, ODM_COMP_RATE_ADAPTIVE, ODM_DBG_TRACE,
 			     ("NscUp is %d, total*up[5] is %d\n",
 			     pRaInfo->NscUp, (pRaInfo->TOTAL * RETRY_PENALTY[PenaltyID2][5])));
+
 		if (pRaInfo->NscUp > (pRaInfo->TOTAL * RETRY_PENALTY[PenaltyID2][5]))
 			pRaInfo->NscUp -= pRaInfo->TOTAL * RETRY_PENALTY[PenaltyID2][5];
 		else
@@ -487,7 +505,7 @@ static void odm_PTDecision_8188E(struct odm_ra_info *pRaInfo)
 			break;
 	}
 
-	j = j >> 1;
+	j >>= 1;
 	temp_stage = (pRaInfo->PTStage + 1) >> 1;
 	if (temp_stage > j)
 		stage_id = temp_stage-j;
@@ -538,6 +556,7 @@ int ODM_RAInfo_Init(struct odm_dm_struct *dm_odm, u8 macid)
 	struct odm_ra_info *pRaInfo = &dm_odm->RAInfo[macid];
 	u8 WirelessMode = 0xFF; /* invalid value */
 	u8 max_rate_idx = 0x13; /* MCS7 */
+
 	if (dm_odm->pWirelessMode != NULL)
 		WirelessMode = *(dm_odm->pWirelessMode);
 
@@ -618,7 +637,7 @@ u8 ODM_RA_GetDecisionRate_8188E(struct odm_dm_struct *dm_odm, u8 macid)
 
 	if ((NULL == dm_odm) || (macid >= ASSOCIATE_ENTRY_NUM))
 		return 0;
-	DecisionRate = (dm_odm->RAInfo[macid].DecisionRate);
+	DecisionRate = dm_odm->RAInfo[macid].DecisionRate;
 	ODM_RT_TRACE(dm_odm, ODM_COMP_RATE_ADAPTIVE, ODM_DBG_TRACE,
 		(" macid =%d DecisionRate = 0x%x\n", macid, DecisionRate));
 	return DecisionRate;
@@ -630,7 +649,7 @@ u8 ODM_RA_GetHwPwrStatus_8188E(struct odm_dm_struct *dm_odm, u8 macid)
 
 	if ((NULL == dm_odm) || (macid >= ASSOCIATE_ENTRY_NUM))
 		return 0;
-	PTStage = (dm_odm->RAInfo[macid].PTStage);
+	PTStage = dm_odm->RAInfo[macid].PTStage;
 	ODM_RT_TRACE(dm_odm, ODM_COMP_RATE_ADAPTIVE, ODM_DBG_TRACE,
 		     ("macid =%d PTStage = 0x%x\n", macid, PTStage));
 	return PTStage;
diff --git a/drivers/staging/rtl8188eu/hal/bb_cfg.c b/drivers/staging/rtl8188eu/hal/bb_cfg.c
index 1e963bf..8eb2b39 100644
--- a/drivers/staging/rtl8188eu/hal/bb_cfg.c
+++ b/drivers/staging/rtl8188eu/hal/bb_cfg.c
@@ -511,62 +511,71 @@ static u32 array_phy_reg_pg_8188e[] = {
 static void store_pwrindex_offset(struct adapter *Adapter, u32 regaddr, u32 bitmask, u32 data)
 {
 	struct hal_data_8188e *hal_data = GET_HAL_DATA(Adapter);
+	 u8 pwrGrpCnt = hal_data->pwrGroupCnt;
 
 	if (regaddr == rTxAGC_A_Rate18_06)
-		hal_data->MCSTxPowerLevelOriginalOffset[hal_data->pwrGroupCnt][0] = data;
+		hal_data->MCSTxPowerLevelOriginalOffset[pwrGrpCnt][0] = data;
 	if (regaddr == rTxAGC_A_Rate54_24)
-		hal_data->MCSTxPowerLevelOriginalOffset[hal_data->pwrGroupCnt][1] = data;
+		hal_data->MCSTxPowerLevelOriginalOffset[pwrGrpCnt][1] = data;
 	if (regaddr == rTxAGC_A_CCK1_Mcs32)
-		hal_data->MCSTxPowerLevelOriginalOffset[hal_data->pwrGroupCnt][6] = data;
+		hal_data->MCSTxPowerLevelOriginalOffset[pwrGrpCnt][6] = data;
 	if (regaddr == rTxAGC_B_CCK11_A_CCK2_11 && bitmask == 0xffffff00)
-		hal_data->MCSTxPowerLevelOriginalOffset[hal_data->pwrGroupCnt][7] = data;
+		hal_data->MCSTxPowerLevelOriginalOffset[pwrGrpCnt][7] = data;
 	if (regaddr == rTxAGC_A_Mcs03_Mcs00)
-		hal_data->MCSTxPowerLevelOriginalOffset[hal_data->pwrGroupCnt][2] = data;
+		hal_data->MCSTxPowerLevelOriginalOffset[pwrGrpCnt][2] = data;
 	if (regaddr == rTxAGC_A_Mcs07_Mcs04)
-		hal_data->MCSTxPowerLevelOriginalOffset[hal_data->pwrGroupCnt][3] = data;
+		hal_data->MCSTxPowerLevelOriginalOffset[pwrGrpCnt][3] = data;
 	if (regaddr == rTxAGC_A_Mcs11_Mcs08)
-		hal_data->MCSTxPowerLevelOriginalOffset[hal_data->pwrGroupCnt][4] = data;
+		hal_data->MCSTxPowerLevelOriginalOffset[pwrGrpCnt][4] = data;
 	if (regaddr == rTxAGC_A_Mcs15_Mcs12) {
-		hal_data->MCSTxPowerLevelOriginalOffset[hal_data->pwrGroupCnt][5] = data;
+		hal_data->MCSTxPowerLevelOriginalOffset[pwrGrpCnt][5] = data;
 		if (hal_data->rf_type == RF_1T1R)
 			hal_data->pwrGroupCnt++;
 	}
 	if (regaddr == rTxAGC_B_Rate18_06)
-		hal_data->MCSTxPowerLevelOriginalOffset[hal_data->pwrGroupCnt][8] = data;
+		hal_data->MCSTxPowerLevelOriginalOffset[pwrGrpCnt][8] = data;
 	if (regaddr == rTxAGC_B_Rate54_24)
-		hal_data->MCSTxPowerLevelOriginalOffset[hal_data->pwrGroupCnt][9] = data;
+		hal_data->MCSTxPowerLevelOriginalOffset[pwrGrpCnt][9] = data;
 	if (regaddr == rTxAGC_B_CCK1_55_Mcs32)
-		hal_data->MCSTxPowerLevelOriginalOffset[hal_data->pwrGroupCnt][14] = data;
+		hal_data->MCSTxPowerLevelOriginalOffset[pwrGrpCnt][14] = data;
 	if (regaddr == rTxAGC_B_CCK11_A_CCK2_11 && bitmask == 0x000000ff)
-		hal_data->MCSTxPowerLevelOriginalOffset[hal_data->pwrGroupCnt][15] = data;
+		hal_data->MCSTxPowerLevelOriginalOffset[pwrGrpCnt][15] = data;
 	if (regaddr == rTxAGC_B_Mcs03_Mcs00)
-		hal_data->MCSTxPowerLevelOriginalOffset[hal_data->pwrGroupCnt][10] = data;
+		hal_data->MCSTxPowerLevelOriginalOffset[pwrGrpCnt][10] = data;
 	if (regaddr == rTxAGC_B_Mcs07_Mcs04)
-		hal_data->MCSTxPowerLevelOriginalOffset[hal_data->pwrGroupCnt][11] = data;
+		hal_data->MCSTxPowerLevelOriginalOffset[pwrGrpCnt][11] = data;
 	if (regaddr == rTxAGC_B_Mcs11_Mcs08)
-		hal_data->MCSTxPowerLevelOriginalOffset[hal_data->pwrGroupCnt][12] = data;
+		hal_data->MCSTxPowerLevelOriginalOffset[pwrGrpCnt][12] = data;
 	if (regaddr == rTxAGC_B_Mcs15_Mcs12) {
-		hal_data->MCSTxPowerLevelOriginalOffset[hal_data->pwrGroupCnt][13] = data;
+		hal_data->MCSTxPowerLevelOriginalOffset[pwrGrpCnt][13] = data;
 		if (hal_data->rf_type != RF_1T1R)
 			hal_data->pwrGroupCnt++;
 	}
 }
 
-static void rtl_addr_delay(struct adapter *adapt, u32 addr, u32 bit_mask, u32 data)
+static void rtl_addr_delay(struct adapter *adapt,
+			u32 addr, u32 bit_mask, u32 data)
 {
-	if (addr == 0xfe) {
+	switch (addr) {
+	case 0xfe:
 		msleep(50);
-	} else if (addr == 0xfd) {
+		break;
+	case 0xfd:
 		mdelay(5);
-	} else if (addr == 0xfc) {
+		break;
+	case 0xfc:
 		mdelay(1);
-	} else if (addr == 0xfb) {
+		break;
+	case 0xfb:
 		udelay(50);
-	} else if (addr == 0xfa) {
+		break;
+	case 0xfa:
 		udelay(5);
-	} else if (addr == 0xf9) {
+		break;
+	case 0xf9:
 		udelay(1);
-	} else{
+		break;
+	default:
 		store_pwrindex_offset(adapt, addr, bit_mask, data);
 	}
 }
@@ -591,84 +600,90 @@ static bool config_bb_with_pgheader(struct adapter *adapt)
 static void rtl88e_phy_init_bb_rf_register_definition(struct adapter *Adapter)
 {
 	struct hal_data_8188e		*hal_data = GET_HAL_DATA(Adapter);
-
-	hal_data->PHYRegDef[RF_PATH_A].rfintfs = rFPGA0_XAB_RFInterfaceSW;
-	hal_data->PHYRegDef[RF_PATH_B].rfintfs = rFPGA0_XAB_RFInterfaceSW;
-	hal_data->PHYRegDef[RF_PATH_C].rfintfs = rFPGA0_XCD_RFInterfaceSW;
-	hal_data->PHYRegDef[RF_PATH_D].rfintfs = rFPGA0_XCD_RFInterfaceSW;
-
-	hal_data->PHYRegDef[RF_PATH_A].rfintfi = rFPGA0_XAB_RFInterfaceRB;
-	hal_data->PHYRegDef[RF_PATH_B].rfintfi = rFPGA0_XAB_RFInterfaceRB;
-	hal_data->PHYRegDef[RF_PATH_C].rfintfi = rFPGA0_XCD_RFInterfaceRB;
-	hal_data->PHYRegDef[RF_PATH_D].rfintfi = rFPGA0_XCD_RFInterfaceRB;
-
-	hal_data->PHYRegDef[RF_PATH_A].rfintfo = rFPGA0_XA_RFInterfaceOE;
-	hal_data->PHYRegDef[RF_PATH_B].rfintfo = rFPGA0_XB_RFInterfaceOE;
-
-	hal_data->PHYRegDef[RF_PATH_A].rfintfe = rFPGA0_XA_RFInterfaceOE;
-	hal_data->PHYRegDef[RF_PATH_B].rfintfe = rFPGA0_XB_RFInterfaceOE;
-
-	hal_data->PHYRegDef[RF_PATH_A].rf3wireOffset = rFPGA0_XA_LSSIParameter;
-	hal_data->PHYRegDef[RF_PATH_B].rf3wireOffset = rFPGA0_XB_LSSIParameter;
-
-	hal_data->PHYRegDef[RF_PATH_A].rfLSSI_Select = rFPGA0_XAB_RFParameter;
-	hal_data->PHYRegDef[RF_PATH_B].rfLSSI_Select = rFPGA0_XAB_RFParameter;
-	hal_data->PHYRegDef[RF_PATH_C].rfLSSI_Select = rFPGA0_XCD_RFParameter;
-	hal_data->PHYRegDef[RF_PATH_D].rfLSSI_Select = rFPGA0_XCD_RFParameter;
-
-	hal_data->PHYRegDef[RF_PATH_A].rfTxGainStage = rFPGA0_TxGainStage;
-	hal_data->PHYRegDef[RF_PATH_B].rfTxGainStage = rFPGA0_TxGainStage;
-	hal_data->PHYRegDef[RF_PATH_C].rfTxGainStage = rFPGA0_TxGainStage;
-	hal_data->PHYRegDef[RF_PATH_D].rfTxGainStage = rFPGA0_TxGainStage;
-
-	hal_data->PHYRegDef[RF_PATH_A].rfHSSIPara1 = rFPGA0_XA_HSSIParameter1;
-	hal_data->PHYRegDef[RF_PATH_B].rfHSSIPara1 = rFPGA0_XB_HSSIParameter1;
-
-	hal_data->PHYRegDef[RF_PATH_A].rfHSSIPara2 = rFPGA0_XA_HSSIParameter2;
-	hal_data->PHYRegDef[RF_PATH_B].rfHSSIPara2 = rFPGA0_XB_HSSIParameter2;
-
-	hal_data->PHYRegDef[RF_PATH_A].rfSwitchControl = rFPGA0_XAB_SwitchControl;
-	hal_data->PHYRegDef[RF_PATH_B].rfSwitchControl = rFPGA0_XAB_SwitchControl;
-	hal_data->PHYRegDef[RF_PATH_C].rfSwitchControl = rFPGA0_XCD_SwitchControl;
-	hal_data->PHYRegDef[RF_PATH_D].rfSwitchControl = rFPGA0_XCD_SwitchControl;
-
-	hal_data->PHYRegDef[RF_PATH_A].rfAGCControl1 = rOFDM0_XAAGCCore1;
-	hal_data->PHYRegDef[RF_PATH_B].rfAGCControl1 = rOFDM0_XBAGCCore1;
-	hal_data->PHYRegDef[RF_PATH_C].rfAGCControl1 = rOFDM0_XCAGCCore1;
-	hal_data->PHYRegDef[RF_PATH_D].rfAGCControl1 = rOFDM0_XDAGCCore1;
-
-	hal_data->PHYRegDef[RF_PATH_A].rfAGCControl2 = rOFDM0_XAAGCCore2;
-	hal_data->PHYRegDef[RF_PATH_B].rfAGCControl2 = rOFDM0_XBAGCCore2;
-	hal_data->PHYRegDef[RF_PATH_C].rfAGCControl2 = rOFDM0_XCAGCCore2;
-	hal_data->PHYRegDef[RF_PATH_D].rfAGCControl2 = rOFDM0_XDAGCCore2;
-
-	hal_data->PHYRegDef[RF_PATH_A].rfRxIQImbalance = rOFDM0_XARxIQImbalance;
-	hal_data->PHYRegDef[RF_PATH_B].rfRxIQImbalance = rOFDM0_XBRxIQImbalance;
-	hal_data->PHYRegDef[RF_PATH_C].rfRxIQImbalance = rOFDM0_XCRxIQImbalance;
-	hal_data->PHYRegDef[RF_PATH_D].rfRxIQImbalance = rOFDM0_XDRxIQImbalance;
-
-	hal_data->PHYRegDef[RF_PATH_A].rfRxAFE = rOFDM0_XARxAFE;
-	hal_data->PHYRegDef[RF_PATH_B].rfRxAFE = rOFDM0_XBRxAFE;
-	hal_data->PHYRegDef[RF_PATH_C].rfRxAFE = rOFDM0_XCRxAFE;
-	hal_data->PHYRegDef[RF_PATH_D].rfRxAFE = rOFDM0_XDRxAFE;
-
-	hal_data->PHYRegDef[RF_PATH_A].rfTxIQImbalance = rOFDM0_XATxIQImbalance;
-	hal_data->PHYRegDef[RF_PATH_B].rfTxIQImbalance = rOFDM0_XBTxIQImbalance;
-	hal_data->PHYRegDef[RF_PATH_C].rfTxIQImbalance = rOFDM0_XCTxIQImbalance;
-	hal_data->PHYRegDef[RF_PATH_D].rfTxIQImbalance = rOFDM0_XDTxIQImbalance;
-
-	hal_data->PHYRegDef[RF_PATH_A].rfTxAFE = rOFDM0_XATxAFE;
-	hal_data->PHYRegDef[RF_PATH_B].rfTxAFE = rOFDM0_XBTxAFE;
-	hal_data->PHYRegDef[RF_PATH_C].rfTxAFE = rOFDM0_XCTxAFE;
-	hal_data->PHYRegDef[RF_PATH_D].rfTxAFE = rOFDM0_XDTxAFE;
-
-	hal_data->PHYRegDef[RF_PATH_A].rfLSSIReadBack = rFPGA0_XA_LSSIReadBack;
-	hal_data->PHYRegDef[RF_PATH_B].rfLSSIReadBack = rFPGA0_XB_LSSIReadBack;
-	hal_data->PHYRegDef[RF_PATH_C].rfLSSIReadBack = rFPGA0_XC_LSSIReadBack;
-	hal_data->PHYRegDef[RF_PATH_D].rfLSSIReadBack = rFPGA0_XD_LSSIReadBack;
-
-	hal_data->PHYRegDef[RF_PATH_A].rfLSSIReadBackPi = TransceiverA_HSPI_Readback;
-	hal_data->PHYRegDef[RF_PATH_B].rfLSSIReadBackPi = TransceiverB_HSPI_Readback;
+	struct bb_reg_def               *reg[4];
+
+	reg[RF_PATH_A] = &(hal_data->PHYRegDef[RF_PATH_A]);
+	reg[RF_PATH_B] = &(hal_data->PHYRegDef[RF_PATH_B]);
+	reg[RF_PATH_C] = &(hal_data->PHYRegDef[RF_PATH_C]);
+	reg[RF_PATH_D] = &(hal_data->PHYRegDef[RF_PATH_D]);
+
+	reg[RF_PATH_A]->rfintfs = rFPGA0_XAB_RFInterfaceSW;
+	reg[RF_PATH_B]->rfintfs = rFPGA0_XAB_RFInterfaceSW;
+	reg[RF_PATH_C]->rfintfs = rFPGA0_XCD_RFInterfaceSW;
+	reg[RF_PATH_D]->rfintfs = rFPGA0_XCD_RFInterfaceSW;
+
+	reg[RF_PATH_A]->rfintfi = rFPGA0_XAB_RFInterfaceRB;
+	reg[RF_PATH_B]->rfintfi = rFPGA0_XAB_RFInterfaceRB;
+	reg[RF_PATH_C]->rfintfi = rFPGA0_XCD_RFInterfaceRB;
+	reg[RF_PATH_D]->rfintfi = rFPGA0_XCD_RFInterfaceRB;
+
+	reg[RF_PATH_A]->rfintfo = rFPGA0_XA_RFInterfaceOE;
+	reg[RF_PATH_B]->rfintfo = rFPGA0_XB_RFInterfaceOE;
+
+	reg[RF_PATH_A]->rfintfe = rFPGA0_XA_RFInterfaceOE;
+	reg[RF_PATH_B]->rfintfe = rFPGA0_XB_RFInterfaceOE;
+
+	reg[RF_PATH_A]->rf3wireOffset = rFPGA0_XA_LSSIParameter;
+	reg[RF_PATH_B]->rf3wireOffset = rFPGA0_XB_LSSIParameter;
+
+	reg[RF_PATH_A]->rfLSSI_Select = rFPGA0_XAB_RFParameter;
+	reg[RF_PATH_B]->rfLSSI_Select = rFPGA0_XAB_RFParameter;
+	reg[RF_PATH_C]->rfLSSI_Select = rFPGA0_XCD_RFParameter;
+	reg[RF_PATH_D]->rfLSSI_Select = rFPGA0_XCD_RFParameter;
+
+	reg[RF_PATH_A]->rfTxGainStage = rFPGA0_TxGainStage;
+	reg[RF_PATH_B]->rfTxGainStage = rFPGA0_TxGainStage;
+	reg[RF_PATH_C]->rfTxGainStage = rFPGA0_TxGainStage;
+	reg[RF_PATH_D]->rfTxGainStage = rFPGA0_TxGainStage;
+
+	reg[RF_PATH_A]->rfHSSIPara1 = rFPGA0_XA_HSSIParameter1;
+	reg[RF_PATH_B]->rfHSSIPara1 = rFPGA0_XB_HSSIParameter1;
+
+	reg[RF_PATH_A]->rfHSSIPara2 = rFPGA0_XA_HSSIParameter2;
+	reg[RF_PATH_B]->rfHSSIPara2 = rFPGA0_XB_HSSIParameter2;
+
+	reg[RF_PATH_A]->rfSwitchControl = rFPGA0_XAB_SwitchControl;
+	reg[RF_PATH_B]->rfSwitchControl = rFPGA0_XAB_SwitchControl;
+	reg[RF_PATH_C]->rfSwitchControl = rFPGA0_XCD_SwitchControl;
+	reg[RF_PATH_D]->rfSwitchControl = rFPGA0_XCD_SwitchControl;
+
+	reg[RF_PATH_A]->rfAGCControl1 = rOFDM0_XAAGCCore1;
+	reg[RF_PATH_B]->rfAGCControl1 = rOFDM0_XBAGCCore1;
+	reg[RF_PATH_C]->rfAGCControl1 = rOFDM0_XCAGCCore1;
+	reg[RF_PATH_D]->rfAGCControl1 = rOFDM0_XDAGCCore1;
+
+	reg[RF_PATH_A]->rfAGCControl2 = rOFDM0_XAAGCCore2;
+	reg[RF_PATH_B]->rfAGCControl2 = rOFDM0_XBAGCCore2;
+	reg[RF_PATH_C]->rfAGCControl2 = rOFDM0_XCAGCCore2;
+	reg[RF_PATH_D]->rfAGCControl2 = rOFDM0_XDAGCCore2;
+
+	reg[RF_PATH_A]->rfRxIQImbalance = rOFDM0_XARxIQImbalance;
+	reg[RF_PATH_B]->rfRxIQImbalance = rOFDM0_XBRxIQImbalance;
+	reg[RF_PATH_C]->rfRxIQImbalance = rOFDM0_XCRxIQImbalance;
+	reg[RF_PATH_D]->rfRxIQImbalance = rOFDM0_XDRxIQImbalance;
+
+	reg[RF_PATH_A]->rfRxAFE = rOFDM0_XARxAFE;
+	reg[RF_PATH_B]->rfRxAFE = rOFDM0_XBRxAFE;
+	reg[RF_PATH_C]->rfRxAFE = rOFDM0_XCRxAFE;
+	reg[RF_PATH_D]->rfRxAFE = rOFDM0_XDRxAFE;
+
+	reg[RF_PATH_A]->rfTxIQImbalance = rOFDM0_XATxIQImbalance;
+	reg[RF_PATH_B]->rfTxIQImbalance = rOFDM0_XBTxIQImbalance;
+	reg[RF_PATH_C]->rfTxIQImbalance = rOFDM0_XCTxIQImbalance;
+	reg[RF_PATH_D]->rfTxIQImbalance = rOFDM0_XDTxIQImbalance;
+
+	reg[RF_PATH_A]->rfTxAFE = rOFDM0_XATxAFE;
+	reg[RF_PATH_B]->rfTxAFE = rOFDM0_XBTxAFE;
+	reg[RF_PATH_C]->rfTxAFE = rOFDM0_XCTxAFE;
+	reg[RF_PATH_D]->rfTxAFE = rOFDM0_XDTxAFE;
+
+	reg[RF_PATH_A]->rfLSSIReadBack = rFPGA0_XA_LSSIReadBack;
+	reg[RF_PATH_B]->rfLSSIReadBack = rFPGA0_XB_LSSIReadBack;
+	reg[RF_PATH_C]->rfLSSIReadBack = rFPGA0_XC_LSSIReadBack;
+	reg[RF_PATH_D]->rfLSSIReadBack = rFPGA0_XD_LSSIReadBack;
+
+	reg[RF_PATH_A]->rfLSSIReadBackPi = TransceiverA_HSPI_Readback;
+	reg[RF_PATH_B]->rfLSSIReadBackPi = TransceiverB_HSPI_Readback;
 }
 
 static bool config_parafile(struct adapter *adapt)
diff --git a/drivers/staging/rtl8188eu/hal/fw.c b/drivers/staging/rtl8188eu/hal/fw.c
index 3b28754..a71c542 100644
--- a/drivers/staging/rtl8188eu/hal/fw.c
+++ b/drivers/staging/rtl8188eu/hal/fw.c
@@ -154,9 +154,8 @@ static int _rtl88e_fw_free_to_go(struct adapter *adapt)
 			break;
 	} while (counter++ < POLLING_READY_TIMEOUT_COUNT);
 
-	if (counter >= POLLING_READY_TIMEOUT_COUNT) {
+	if (counter >= POLLING_READY_TIMEOUT_COUNT)
 		goto exit;
-	}
 
 	value32 = usb_read32(adapt, REG_MCUFWDL);
 	value32 |= MCUFWDL_RDY;
diff --git a/drivers/staging/rtl8188eu/hal/odm.c b/drivers/staging/rtl8188eu/hal/odm.c
index 06477e8..28b5e7b 100644
--- a/drivers/staging/rtl8188eu/hal/odm.c
+++ b/drivers/staging/rtl8188eu/hal/odm.c
@@ -741,13 +741,13 @@ void odm_FalseAlarmCounterStatistics(struct odm_dm_struct *pDM_Odm)
 
 	ret_value = phy_query_bb_reg(adapter, ODM_REG_OFDM_FA_TYPE1_11N, bMaskDWord);
 	FalseAlmCnt->Cnt_Fast_Fsync = (ret_value&0xffff);
-	FalseAlmCnt->Cnt_SB_Search_fail = ((ret_value&0xffff0000)>>16);
+	FalseAlmCnt->Cnt_SB_Search_fail = (ret_value & 0xffff0000)>>16;
 	ret_value = phy_query_bb_reg(adapter, ODM_REG_OFDM_FA_TYPE2_11N, bMaskDWord);
 	FalseAlmCnt->Cnt_OFDM_CCA = (ret_value&0xffff);
-	FalseAlmCnt->Cnt_Parity_Fail = ((ret_value&0xffff0000)>>16);
+	FalseAlmCnt->Cnt_Parity_Fail = (ret_value & 0xffff0000)>>16;
 	ret_value = phy_query_bb_reg(adapter, ODM_REG_OFDM_FA_TYPE3_11N, bMaskDWord);
 	FalseAlmCnt->Cnt_Rate_Illegal = (ret_value&0xffff);
-	FalseAlmCnt->Cnt_Crc8_fail = ((ret_value&0xffff0000)>>16);
+	FalseAlmCnt->Cnt_Crc8_fail = (ret_value & 0xffff0000)>>16;
 	ret_value = phy_query_bb_reg(adapter, ODM_REG_OFDM_FA_TYPE4_11N, bMaskDWord);
 	FalseAlmCnt->Cnt_Mcs_fail = (ret_value&0xffff);
 
@@ -757,7 +757,7 @@ void odm_FalseAlarmCounterStatistics(struct odm_dm_struct *pDM_Odm)
 
 	ret_value = phy_query_bb_reg(adapter, ODM_REG_SC_CNT_11N, bMaskDWord);
 	FalseAlmCnt->Cnt_BW_LSC = (ret_value&0xffff);
-	FalseAlmCnt->Cnt_BW_USC = ((ret_value&0xffff0000)>>16);
+	FalseAlmCnt->Cnt_BW_USC = (ret_value & 0xffff0000)>>16;
 
 	/* hold cck counter */
 	phy_set_bb_reg(adapter, ODM_REG_CCK_FA_RST_11N, BIT12, 1);
diff --git a/drivers/staging/rtl8188eu/hal/odm_HWConfig.c b/drivers/staging/rtl8188eu/hal/odm_HWConfig.c
index 29f87df..36afe45 100644
--- a/drivers/staging/rtl8188eu/hal/odm_HWConfig.c
+++ b/drivers/staging/rtl8188eu/hal/odm_HWConfig.c
@@ -123,8 +123,8 @@ static void odm_RxPhyStatus92CSeries_Parsing(struct odm_dm_struct *dm_odm,
 		/* 2011.11.28 LukeLee: 88E use different LNA & VGA gain table */
 		/* The RSSI formula should be modified according to the gain table */
 		/* In 88E, cck_highpwr is always set to 1 */
-		LNA_idx = ((cck_agc_rpt & 0xE0) >> 5);
-		VGA_idx = (cck_agc_rpt & 0x1F);
+		LNA_idx = (cck_agc_rpt & 0xE0) >> 5;
+		VGA_idx = cck_agc_rpt & 0x1F;
 		switch (LNA_idx) {
 		case 7:
 			if (VGA_idx <= 27)
diff --git a/drivers/staging/rtl8188eu/hal/phy.c b/drivers/staging/rtl8188eu/hal/phy.c
index 3f663fe..6e4c3ee 100644
--- a/drivers/staging/rtl8188eu/hal/phy.c
+++ b/drivers/staging/rtl8188eu/hal/phy.c
@@ -60,7 +60,7 @@ void phy_set_bb_reg(struct adapter *adapt, u32 regaddr, u32 bitmask, u32 data)
 	if (bitmask != bMaskDWord) { /* if not "double word" write */
 		original_value = usb_read32(adapt, regaddr);
 		bit_shift = cal_bit_shift(bitmask);
-		data = ((original_value & (~bitmask)) | (data << bit_shift));
+		data = (original_value & (~bitmask)) | (data << bit_shift);
 	}
 
 	usb_write32(adapt, regaddr, data);
@@ -72,12 +72,10 @@ static u32 rf_serial_read(struct adapter *adapt,
 	u32 ret = 0;
 	struct hal_data_8188e *hal_data = GET_HAL_DATA(adapt);
 	struct bb_reg_def *phyreg = &hal_data->PHYRegDef[rfpath];
-	u32 newoffset;
 	u32 tmplong, tmplong2;
 	u8 rfpi_enable = 0;
 
 	offset &= 0xff;
-	newoffset = offset;
 
 	tmplong = phy_query_bb_reg(adapt, rFPGA0_XA_HSSIParameter2, bMaskDWord);
 	if (rfpath == RF_PATH_A)
@@ -87,7 +85,7 @@ static u32 rf_serial_read(struct adapter *adapt,
 					    bMaskDWord);
 
 	tmplong2 = (tmplong2 & (~bLSSIReadAddress)) |
-		   (newoffset<<23) | bLSSIReadEdge;
+		   (offset<<23) | bLSSIReadEdge;
 
 	phy_set_bb_reg(adapt, rFPGA0_XA_HSSIParameter2, bMaskDWord,
 		       tmplong&(~bLSSIReadEdge));
@@ -119,10 +117,9 @@ static void rf_serial_write(struct adapter *adapt,
 	u32 data_and_addr = 0;
 	struct hal_data_8188e *hal_data = GET_HAL_DATA(adapt);
 	struct bb_reg_def *phyreg = &hal_data->PHYRegDef[rfpath];
-	u32 newoffset;
 
-	newoffset = offset & 0xff;
-	data_and_addr = ((newoffset<<20) | (data&0x000fffff)) & 0x0fffffff;
+	offset &= 0xff;
+	data_and_addr = ((offset<<20) | (data&0x000fffff)) & 0x0fffffff;
 	phy_set_bb_reg(adapt, phyreg->rf3wireOffset, bMaskDWord, data_and_addr);
 }
 
@@ -146,7 +143,7 @@ void phy_set_rf_reg(struct adapter *adapt, enum rf_radio_path rf_path,
 	if (bit_mask != bRFRegOffsetMask) {
 		original_value = rf_serial_read(adapt, rf_path, reg_addr);
 		bit_shift =  cal_bit_shift(bit_mask);
-		data = ((original_value & (~bit_mask)) | (data << bit_shift));
+		data = (original_value & (~bit_mask)) | (data << bit_shift);
 	}
 
 	rf_serial_write(adapt, rf_path, reg_addr, data);
@@ -304,21 +301,8 @@ static void phy_set_bw_mode_callback(struct adapter *adapt)
 	}
 
 	/* Set RF related register */
-	switch (hal_data->rf_chip) {
-	case RF_8225:
-		break;
-	case RF_8256:
-		break;
-	case RF_8258:
-		break;
-	case RF_PSEUDO_11N:
-		break;
-	case RF_6052:
+	if (hal_data->rf_chip == RF_6052)
 		rtl88eu_phy_rf6052_set_bandwidth(adapt, hal_data->CurrentChannelBW);
-		break;
-	default:
-		break;
-	}
 }
 
 void phy_set_bw_mode(struct adapter *adapt, enum ht_channel_width bandwidth,
@@ -361,7 +345,6 @@ void phy_sw_chnl(struct adapter *adapt, u8 channel)
 {
 	struct hal_data_8188e *hal_data = GET_HAL_DATA(adapt);
 	u8 tmpchannel = hal_data->CurrentChannel;
-	bool  result = true;
 
 	if (hal_data->rf_chip == RF_PSEUDO_11N)
 		return;
@@ -371,34 +354,28 @@ void phy_sw_chnl(struct adapter *adapt, u8 channel)
 
 	hal_data->CurrentChannel = channel;
 
-	if ((!adapt->bDriverStopped) && (!adapt->bSurpriseRemoved)) {
+	if ((!adapt->bDriverStopped) && (!adapt->bSurpriseRemoved))
 		phy_sw_chnl_callback(adapt, channel);
-
-		if (!result)
-			hal_data->CurrentChannel = tmpchannel;
-
-	} else {
+	else
 		hal_data->CurrentChannel = tmpchannel;
-	}
 }
 
 #define ODM_TXPWRTRACK_MAX_IDX_88E  6
 
 static u8 get_right_chnl_for_iqk(u8 chnl)
 {
+	u8 place;
 	u8 channel_all[ODM_TARGET_CHNL_NUM_2G_5G] = {
-		1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
 		36, 38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60, 62, 64,
 		100, 102, 104, 106, 108, 110, 112, 114, 116, 118, 120, 122,
 		124, 126, 128, 130, 132, 134, 136, 138, 140, 149, 151, 153,
 		155, 157, 159, 161, 163, 165
 	};
-	u8 place = chnl;
 
 	if (chnl > 14) {
-		for (place = 14; place < sizeof(channel_all); place++) {
+		for (place = 0; place < sizeof(channel_all); place++) {
 			if (channel_all[place] == chnl)
-				return place-13;
+				return ++place;
 		}
 	}
 	return 0;
@@ -416,12 +393,12 @@ void rtl88eu_dm_txpower_track_adjust(struct odm_dm_struct *dm_odm, u8 type,
 
 		if (dm_odm->BbSwingIdxOfdm <= dm_odm->BbSwingIdxOfdmBase) {
 			*direction = 1;
-			pwr_value = (dm_odm->BbSwingIdxOfdmBase -
-				     dm_odm->BbSwingIdxOfdm);
+			pwr_value = dm_odm->BbSwingIdxOfdmBase -
+				     dm_odm->BbSwingIdxOfdm;
 		} else {
 			*direction = 2;
-			pwr_value = (dm_odm->BbSwingIdxOfdm -
-				     dm_odm->BbSwingIdxOfdmBase);
+			pwr_value = dm_odm->BbSwingIdxOfdm -
+				     dm_odm->BbSwingIdxOfdmBase;
 		}
 
 	} else if (type == 1) { /* For CCK adjust. */
@@ -431,12 +408,12 @@ void rtl88eu_dm_txpower_track_adjust(struct odm_dm_struct *dm_odm, u8 type,
 
 		if (dm_odm->BbSwingIdxCck <= dm_odm->BbSwingIdxCckBase) {
 			*direction = 1;
-			pwr_value = (dm_odm->BbSwingIdxCckBase -
-				     dm_odm->BbSwingIdxCck);
+			pwr_value = dm_odm->BbSwingIdxCckBase -
+				     dm_odm->BbSwingIdxCck;
 		} else {
 			*direction = 2;
-			pwr_value = (dm_odm->BbSwingIdxCck -
-				     dm_odm->BbSwingIdxCckBase);
+			pwr_value = dm_odm->BbSwingIdxCck -
+				     dm_odm->BbSwingIdxCckBase;
 		}
 
 	}
@@ -465,15 +442,13 @@ void rtl88eu_dm_txpower_tracking_callback_thermalmeter(struct adapter *adapt)
 	u8 thermal_val = 0, delta, delta_lck, delta_iqk, offset;
 	u8 thermal_avg_count = 0;
 	u32 thermal_avg = 0;
-	s32 ele_a = 0, ele_d, temp_cck, x, value32;
-	s32 y, ele_c = 0;
+	s32 ele_d, temp_cck;
 	s8 ofdm_index[2], cck_index = 0;
 	s8 ofdm_index_old[2] = {0, 0}, cck_index_old = 0;
 	u32 i = 0, j = 0;
 	bool is2t = false;
 
 	u8 ofdm_min_index = 6, rf; /* OFDM BB Swing should be less than +3.0dB */
-	u8 indexforchannel = 0;
 	s8 ofdm_index_mapping[2][index_mapping_NUM_88E] = {
 		/* 2.4G, decrease power */
 		{0, 0, 2, 3, 4, 4, 5, 6, 7, 7, 8, 9, 10, 10, 11},
@@ -529,18 +504,12 @@ void rtl88eu_dm_txpower_tracking_callback_thermalmeter(struct adapter *adapt)
 		temp_cck = dm_odm->RFCalibrateInfo.RegA24;
 
 		for (i = 0; i < CCK_TABLE_SIZE; i++) {
-			if (dm_odm->RFCalibrateInfo.bCCKinCH14) {
-				if (memcmp(&temp_cck, &CCKSwingTable_Ch14[i][2], 4)) {
-					cck_index_old = (u8)i;
-					dm_odm->BbSwingIdxCckBase = (u8)i;
-					break;
-				}
-			} else {
-				if (memcmp(&temp_cck, &CCKSwingTable_Ch1_Ch13[i][2], 4)) {
+			if ((dm_odm->RFCalibrateInfo.bCCKinCH14 &&
+				memcmp(&temp_cck, &CCKSwingTable_Ch14[i][2], 4)) ||
+				memcmp(&temp_cck, &CCKSwingTable_Ch1_Ch13[i][2], 4)) {
 					cck_index_old = (u8)i;
 					dm_odm->BbSwingIdxCckBase = (u8)i;
 					break;
-				}
 			}
 		}
 
@@ -570,27 +539,19 @@ void rtl88eu_dm_txpower_tracking_callback_thermalmeter(struct adapter *adapt)
 		if (thermal_avg_count)
 			thermal_val = (u8)(thermal_avg / thermal_avg_count);
 
-		if (dm_odm->RFCalibrateInfo.bReloadtxpowerindex) {
-			delta = thermal_val > hal_data->EEPROMThermalMeter ?
-				(thermal_val - hal_data->EEPROMThermalMeter) :
-				(hal_data->EEPROMThermalMeter - thermal_val);
-			dm_odm->RFCalibrateInfo.bReloadtxpowerindex = false;
-			dm_odm->RFCalibrateInfo.bDoneTxpower = false;
-		} else if (dm_odm->RFCalibrateInfo.bDoneTxpower) {
-			delta = (thermal_val > dm_odm->RFCalibrateInfo.ThermalValue) ?
-				(thermal_val - dm_odm->RFCalibrateInfo.ThermalValue) :
-				(dm_odm->RFCalibrateInfo.ThermalValue - thermal_val);
-		} else {
-			delta = thermal_val > hal_data->EEPROMThermalMeter ?
-				(thermal_val - hal_data->EEPROMThermalMeter) :
-				(hal_data->EEPROMThermalMeter - thermal_val);
+		if (dm_odm->RFCalibrateInfo.bDoneTxpower &&
+			!dm_odm->RFCalibrateInfo.bReloadtxpowerindex)
+			delta = abs(thermal_val - dm_odm->RFCalibrateInfo.ThermalValue);
+		else {
+			delta = abs(thermal_val - hal_data->EEPROMThermalMeter);
+			if (dm_odm->RFCalibrateInfo.bReloadtxpowerindex) {
+				dm_odm->RFCalibrateInfo.bReloadtxpowerindex = false;
+				dm_odm->RFCalibrateInfo.bDoneTxpower = false;
+			}
 		}
-		delta_lck = (thermal_val > dm_odm->RFCalibrateInfo.ThermalValue_LCK) ?
-			    (thermal_val - dm_odm->RFCalibrateInfo.ThermalValue_LCK) :
-			    (dm_odm->RFCalibrateInfo.ThermalValue_LCK - thermal_val);
-		delta_iqk = (thermal_val > dm_odm->RFCalibrateInfo.ThermalValue_IQK) ?
-			    (thermal_val - dm_odm->RFCalibrateInfo.ThermalValue_IQK) :
-			    (dm_odm->RFCalibrateInfo.ThermalValue_IQK - thermal_val);
+
+		delta_lck = abs(dm_odm->RFCalibrateInfo.ThermalValue_LCK - thermal_val);
+		delta_iqk = abs(dm_odm->RFCalibrateInfo.ThermalValue_IQK - thermal_val);
 
 		/* Delta temperature is equal to or larger than 20 centigrade.*/
 		if ((delta_lck >= 8)) {
@@ -599,9 +560,8 @@ void rtl88eu_dm_txpower_tracking_callback_thermalmeter(struct adapter *adapt)
 		}
 
 		if (delta > 0 && dm_odm->RFCalibrateInfo.TxPowerTrackControl) {
-			delta = thermal_val > hal_data->EEPROMThermalMeter ?
-				(thermal_val - hal_data->EEPROMThermalMeter) :
-				(hal_data->EEPROMThermalMeter - thermal_val);
+			delta = abs(hal_data->EEPROMThermalMeter - thermal_val);
+
 			/* calculate new OFDM / CCK offset */
 			if (thermal_val > hal_data->EEPROMThermalMeter)
 				j = 1;
@@ -616,17 +576,17 @@ void rtl88eu_dm_txpower_tracking_callback_thermalmeter(struct adapter *adapt)
 			}
 			if (offset >= index_mapping_NUM_88E)
 				offset = index_mapping_NUM_88E-1;
-			for (i = 0; i < rf; i++)
-				ofdm_index[i] = dm_odm->RFCalibrateInfo.OFDM_index[i] + ofdm_index_mapping[j][offset];
-			cck_index = dm_odm->RFCalibrateInfo.CCK_index + ofdm_index_mapping[j][offset];
 
+			/* Updating ofdm_index values with new OFDM / CCK offset */
 			for (i = 0; i < rf; i++) {
+				ofdm_index[i] = dm_odm->RFCalibrateInfo.OFDM_index[i] + ofdm_index_mapping[j][offset];
 				if (ofdm_index[i] > OFDM_TABLE_SIZE_92D-1)
 					ofdm_index[i] = OFDM_TABLE_SIZE_92D-1;
 				else if (ofdm_index[i] < ofdm_min_index)
 					ofdm_index[i] = ofdm_min_index;
 			}
 
+			cck_index = dm_odm->RFCalibrateInfo.CCK_index + ofdm_index_mapping[j][offset];
 			if (cck_index > CCK_TABLE_SIZE-1)
 				cck_index = CCK_TABLE_SIZE-1;
 			else if (cck_index < 0)
@@ -637,11 +597,6 @@ void rtl88eu_dm_txpower_tracking_callback_thermalmeter(struct adapter *adapt)
 			if (dm_odm->RFCalibrateInfo.TxPowerTrackControl) {
 				dm_odm->RFCalibrateInfo.bDoneTxpower = true;
 
-				/* Adujst OFDM Ant_A according to IQK result */
-				ele_d = (OFDMSwingTable[(u8)ofdm_index[0]] & 0xFFC00000)>>22;
-				x = dm_odm->RFCalibrateInfo.IQKMatrixRegSetting[indexforchannel].Value[0][0];
-				y = dm_odm->RFCalibrateInfo.IQKMatrixRegSetting[indexforchannel].Value[0][1];
-
 				/*  Revse TX power table. */
 				dm_odm->BbSwingIdxOfdm = (u8)ofdm_index[0];
 				dm_odm->BbSwingIdxCck = (u8)cck_index;
@@ -655,53 +610,6 @@ void rtl88eu_dm_txpower_tracking_callback_thermalmeter(struct adapter *adapt)
 					dm_odm->BbSwingIdxCckCurrent = dm_odm->BbSwingIdxCck;
 					dm_odm->BbSwingFlagCck = true;
 				}
-
-				if (x != 0) {
-					if ((x & 0x00000200) != 0)
-						x = x | 0xFFFFFC00;
-					ele_a = ((x * ele_d)>>8)&0x000003FF;
-
-					/* new element C = element D x Y */
-					if ((y & 0x00000200) != 0)
-						y = y | 0xFFFFFC00;
-					ele_c = ((y * ele_d)>>8)&0x000003FF;
-
-				}
-
-				if (is2t) {
-					ele_d = (OFDMSwingTable[(u8)ofdm_index[1]] & 0xFFC00000)>>22;
-
-					/* new element A = element D x X */
-					x = dm_odm->RFCalibrateInfo.IQKMatrixRegSetting[indexforchannel].Value[0][4];
-					y = dm_odm->RFCalibrateInfo.IQKMatrixRegSetting[indexforchannel].Value[0][5];
-
-					if ((x != 0) && (*(dm_odm->pBandType) == ODM_BAND_2_4G)) {
-						if ((x & 0x00000200) != 0)	/* consider minus */
-							x = x | 0xFFFFFC00;
-						ele_a = ((x * ele_d)>>8)&0x000003FF;
-
-						/* new element C = element D x Y */
-						if ((y & 0x00000200) != 0)
-							y = y | 0xFFFFFC00;
-						ele_c = ((y * ele_d)>>8)&0x00003FF;
-
-						/* wtite new elements A, C, D to regC88 and regC9C, element B is always 0 */
-						value32 = (ele_d<<22) | ((ele_c&0x3F)<<16) | ele_a;
-						phy_set_bb_reg(adapt, rOFDM0_XBTxIQImbalance, bMaskDWord, value32);
-
-						value32 = (ele_c&0x000003C0)>>6;
-						phy_set_bb_reg(adapt, rOFDM0_XDTxAFE, bMaskH4Bits, value32);
-
-						value32 = ((x * ele_d)>>7)&0x01;
-						phy_set_bb_reg(adapt, rOFDM0_ECCAThreshold, BIT28, value32);
-					} else {
-						phy_set_bb_reg(adapt, rOFDM0_XBTxIQImbalance, bMaskDWord, OFDMSwingTable[(u8)ofdm_index[1]]);
-						phy_set_bb_reg(adapt, rOFDM0_XDTxAFE, bMaskH4Bits, 0x00);
-						phy_set_bb_reg(adapt, rOFDM0_ECCAThreshold, BIT28, 0x00);
-					}
-
-				}
-
 			}
 		}
 
@@ -1033,11 +941,11 @@ static void path_adda_on(struct adapter *adapt, u32 *adda_reg,
 	u32 path_on;
 	u32 i;
 
-	path_on = is_path_a_on ? 0x04db25a4 : 0x0b1b25a4;
 	if (!is2t) {
 		path_on = 0x0bdb25a0;
 		phy_set_bb_reg(adapt, adda_reg[0], bMaskDWord, 0x0b1b25a0);
 	} else {
+		path_on = is_path_a_on ? 0x04db25a4 : 0x0b1b25a4;
 		phy_set_bb_reg(adapt, adda_reg[0], bMaskDWord, path_on);
 	}
 
@@ -1077,27 +985,19 @@ static void pi_mode_switch(struct adapter *adapt, bool pi_mode)
 static bool simularity_compare(struct adapter *adapt, s32 resulta[][8],
 			       u8 c1, u8 c2)
 {
-	u32 i, j, diff, sim_bitmap, bound = 0;
+	u32 i, j, diff, sim_bitmap = 0, bound;
 	struct hal_data_8188e *hal_data = GET_HAL_DATA(adapt);
 	struct odm_dm_struct *dm_odm = &hal_data->odmpriv;
 	u8 final_candidate[2] = {0xFF, 0xFF};	/* for path A and path B */
 	bool result = true;
-	bool is2t;
 	s32 tmp1 = 0, tmp2 = 0;
 
 	if ((dm_odm->RFType == ODM_2T2R) || (dm_odm->RFType == ODM_2T3R) ||
 	    (dm_odm->RFType == ODM_2T4R))
-		is2t = true;
-	else
-		is2t = false;
-
-	if (is2t)
 		bound = 8;
 	else
 		bound = 4;
 
-	sim_bitmap = 0;
-
 	for (i = 0; i < bound; i++) {
 		if ((i == 1) || (i == 3) || (i == 5) || (i == 7)) {
 			if ((resulta[c1][i] & 0x00000200) != 0)
diff --git a/drivers/staging/rtl8188eu/hal/pwrseqcmd.c b/drivers/staging/rtl8188eu/hal/pwrseqcmd.c
index be0663e..73e1f8b 100644
--- a/drivers/staging/rtl8188eu/hal/pwrseqcmd.c
+++ b/drivers/staging/rtl8188eu/hal/pwrseqcmd.c
@@ -109,7 +109,6 @@ u8 rtl88eu_pwrseqcmdparsing(struct adapter *padapter, u8 cut_vers, u8 fab_vers,
 				RT_TRACE(_module_hal_init_c_, _drv_info_,
 					 ("rtl88eu_pwrseqcmdparsing: PWR_CMD_END\n"));
 				return true;
-				break;
 			default:
 				RT_TRACE(_module_hal_init_c_, _drv_err_,
 					 ("rtl88eu_pwrseqcmdparsing: Unknown CMD!!\n"));
diff --git a/drivers/staging/rtl8188eu/hal/rf.c b/drivers/staging/rtl8188eu/hal/rf.c
index eea4c8a..0970927 100644
--- a/drivers/staging/rtl8188eu/hal/rf.c
+++ b/drivers/staging/rtl8188eu/hal/rf.c
@@ -201,7 +201,7 @@ static void get_rx_power_val_by_reg(struct adapter *adapt, u8 channel,
 			break;
 		case 2:	/*  Better regulatory */
 				/*  don't increase any power diff */
-			write_val = ((index < 2) ? powerbase0[rf] : powerbase1[rf]);
+			write_val = (index < 2) ? powerbase0[rf] : powerbase1[rf];
 			break;
 		case 3:	/*  Customer defined power diff. */
 				/*  increase power diff defined by customer. */
diff --git a/drivers/staging/rtl8188eu/hal/rf_cfg.c b/drivers/staging/rtl8188eu/hal/rf_cfg.c
index 5dc11ca..455ecdc 100644
--- a/drivers/staging/rtl8188eu/hal/rf_cfg.c
+++ b/drivers/staging/rtl8188eu/hal/rf_cfg.c
@@ -38,12 +38,12 @@ static bool check_condition(struct adapter *adapt, const u32  condition)
 		return false;
 
 	cond = condition & 0x0000FF00;
-	cond = cond >> 8;
+	cond >>= 8;
 	if ((_interface & cond) == 0 && cond != 0x07)
 		return false;
 
 	cond = condition & 0x00FF0000;
-	cond = cond >> 16;
+	cond >>= 16;
 	if ((_platform & cond) == 0 && cond != 0x0F)
 		return false;
 	return true;
diff --git a/drivers/staging/rtl8188eu/hal/rtl8188e_hal_init.c b/drivers/staging/rtl8188eu/hal/rtl8188e_hal_init.c
index 3222d8d..7904d22 100644
--- a/drivers/staging/rtl8188eu/hal/rtl8188e_hal_init.c
+++ b/drivers/staging/rtl8188eu/hal/rtl8188e_hal_init.c
@@ -596,7 +596,8 @@ void Hal_EfuseParseBoardType88E(struct adapter *pAdapter, u8 *hwinfo, bool AutoL
 	struct hal_data_8188e *pHalData = GET_HAL_DATA(pAdapter);
 
 	if (!AutoLoadFail)
-		pHalData->BoardType = ((hwinfo[EEPROM_RF_BOARD_OPTION_88E]&0xE0)>>5);
+		pHalData->BoardType = (hwinfo[EEPROM_RF_BOARD_OPTION_88E]
+					& 0xE0) >> 5;
 	else
 		pHalData->BoardType = 0;
 	DBG_88E("Board Type: 0x%2x\n", pHalData->BoardType);
diff --git a/drivers/staging/rtl8188eu/hal/rtl8188eu_recv.c b/drivers/staging/rtl8188eu/hal/rtl8188eu_recv.c
index bc275b2..06d1e65 100644
--- a/drivers/staging/rtl8188eu/hal/rtl8188eu_recv.c
+++ b/drivers/staging/rtl8188eu/hal/rtl8188eu_recv.c
@@ -42,7 +42,7 @@ int	rtl8188eu_init_recv_priv(struct adapter *padapter)
 	_rtw_init_queue(&precvpriv->free_recv_buf_queue);
 
 	precvpriv->pallocated_recv_buf =
-		kzalloc(NR_RECVBUFF * sizeof(struct recv_buf), GFP_KERNEL);
+		kcalloc(NR_RECVBUFF, sizeof(struct recv_buf), GFP_KERNEL);
 	if (precvpriv->pallocated_recv_buf == NULL) {
 		res = _FAIL;
 		RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
diff --git a/drivers/staging/rtl8188eu/hal/usb_halinit.c b/drivers/staging/rtl8188eu/hal/usb_halinit.c
index 14650e9..7b01d5a 100644
--- a/drivers/staging/rtl8188eu/hal/usb_halinit.c
+++ b/drivers/staging/rtl8188eu/hal/usb_halinit.c
@@ -1096,10 +1096,8 @@ static void Hal_EfuseParseMACAddr_8188EU(struct adapter *adapt, u8 *hwinfo, bool
 		memcpy(eeprom->mac_addr, &hwinfo[EEPROM_MAC_ADDR_88EU], ETH_ALEN);
 	}
 	RT_TRACE(_module_hci_hal_init_c_, _drv_notice_,
-		 ("Hal_EfuseParseMACAddr_8188EU: Permanent Address = %02x-%02x-%02x-%02x-%02x-%02x\n",
-		 eeprom->mac_addr[0], eeprom->mac_addr[1],
-		 eeprom->mac_addr[2], eeprom->mac_addr[3],
-		 eeprom->mac_addr[4], eeprom->mac_addr[5]));
+		 ("Hal_EfuseParseMACAddr_8188EU: Permanent Address = %pM\n",
+		 eeprom->mac_addr));
 }
 
 static void
@@ -1352,7 +1350,7 @@ static void SetHwReg8188EU(struct adapter *Adapter, u8 variable, u8 *val)
 
 			/*  Set RTS initial rate */
 			while (BrateCfg > 0x1) {
-				BrateCfg = (BrateCfg >> 1);
+				BrateCfg >>= 1;
 				RateIndex++;
 			}
 			/*  Ziv - Check */
diff --git a/drivers/staging/rtl8188eu/include/ieee80211.h b/drivers/staging/rtl8188eu/include/ieee80211.h
index 3299571..8fd35dc 100644
--- a/drivers/staging/rtl8188eu/include/ieee80211.h
+++ b/drivers/staging/rtl8188eu/include/ieee80211.h
@@ -122,7 +122,6 @@ enum {
 
 #define WPA_SELECTOR_LEN 4
 extern u8 RTW_WPA_OUI_TYPE[];
-extern u16 RTW_WPA_VERSION;
 extern u8 WPA_AUTH_KEY_MGMT_NONE[];
 extern u8 WPA_AUTH_KEY_MGMT_UNSPEC_802_1X[];
 extern u8 WPA_AUTH_KEY_MGMT_PSK_OVER_802_1X[];
diff --git a/drivers/staging/rtl8188eu/include/osdep_service.h b/drivers/staging/rtl8188eu/include/osdep_service.h
index 3a27477..515e949 100644
--- a/drivers/staging/rtl8188eu/include/osdep_service.h
+++ b/drivers/staging/rtl8188eu/include/osdep_service.h
@@ -76,25 +76,6 @@ static inline int _enter_critical_mutex(struct mutex *pmutex,
 	return ret;
 }
 
-static inline void _init_timer(struct timer_list *ptimer,
-			       struct  net_device *nic_hdl,
-			       void *pfunc, void *cntx)
-{
-	ptimer->function = pfunc;
-	ptimer->data = (unsigned long)cntx;
-	init_timer(ptimer);
-}
-
-static inline void _set_timer(struct timer_list *ptimer, u32 delay_time)
-{
-	mod_timer(ptimer , (jiffies+msecs_to_jiffies(delay_time)));
-}
-
-#define RTW_TIMER_HDL_ARGS void *FunctionContext
-#define RTW_TIMER_HDL_NAME(name) rtw_##name##_timer_hdl
-#define RTW_DECLARE_TIMER_HDL(name) \
-	void RTW_TIMER_HDL_NAME(name)(RTW_TIMER_HDL_ARGS)
-
 static inline int rtw_netif_queue_stopped(struct net_device *pnetdev)
 {
 	return  netif_tx_queue_stopped(netdev_get_tx_queue(pnetdev, 0)) &&
diff --git a/drivers/staging/rtl8188eu/include/rtw_led.h b/drivers/staging/rtl8188eu/include/rtw_led.h
index 23f0cfe..7a5303d 100644
--- a/drivers/staging/rtl8188eu/include/rtw_led.h
+++ b/drivers/staging/rtl8188eu/include/rtw_led.h
@@ -103,7 +103,7 @@ struct led_priv {
 			(adapt)->ledpriv.LedControlHandler((adapt), (action)); \
 	} while (0)
 
-void BlinkTimerCallback(void *data);
+void BlinkTimerCallback(unsigned long data);
 void BlinkWorkItemCallback(struct work_struct *work);
 
 void ResetLedStatus(struct LED_871x *pLed);
diff --git a/drivers/staging/rtl8188eu/include/rtw_mlme.h b/drivers/staging/rtl8188eu/include/rtw_mlme.h
index 8d83f7c..3f7d1e6 100644
--- a/drivers/staging/rtl8188eu/include/rtw_mlme.h
+++ b/drivers/staging/rtl8188eu/include/rtw_mlme.h
@@ -551,10 +551,10 @@ void rtw_update_registrypriv_dev_network(struct adapter *adapter);
 
 void rtw_get_encrypt_decrypt_from_registrypriv(struct adapter *adapter);
 
-void _rtw_join_timeout_handler(void *function_context);
-void rtw_scan_timeout_handler(void *function_context);
+void _rtw_join_timeout_handler(unsigned long data);
+void rtw_scan_timeout_handler(unsigned long data);
 
-void rtw_dynamic_check_timer_handlder(void *function_context);
+void rtw_dynamic_check_timer_handlder(unsigned long data);
 #define rtw_is_scan_deny(adapter) false
 #define rtw_clear_scan_deny(adapter) do {} while (0)
 #define rtw_set_scan_deny_timer_hdl(adapter) do {} while (0)
diff --git a/drivers/staging/rtl8188eu/include/rtw_mlme_ext.h b/drivers/staging/rtl8188eu/include/rtw_mlme_ext.h
index 4f05aee..2bebf46 100644
--- a/drivers/staging/rtl8188eu/include/rtw_mlme_ext.h
+++ b/drivers/staging/rtl8188eu/include/rtw_mlme_ext.h
@@ -645,19 +645,17 @@ void mlmeext_sta_add_event_callback(struct adapter *padapter,
 
 void linked_status_chk(struct adapter *padapter);
 
-void survey_timer_hdl(void *function_context);
-void link_timer_hdl(void *funtion_context);
-void addba_timer_hdl(void *function_context);
+void survey_timer_hdl(unsigned long data);
+void link_timer_hdl(unsigned long data);
+void addba_timer_hdl(unsigned long data);
 
 #define set_survey_timer(mlmeext, ms) \
-	do { \
-		_set_timer(&(mlmeext)->survey_timer, (ms)); \
-	} while (0)
+	mod_timer(&mlmeext->survey_timer, jiffies +	\
+		  msecs_to_jiffies(ms))
 
 #define set_link_timer(mlmeext, ms) \
-	do { \
-		_set_timer(&(mlmeext)->link_timer, (ms)); \
-	} while (0)
+	mod_timer(&mlmeext->link_timer, jiffies +	\
+		  msecs_to_jiffies(ms))
 
 int cckrates_included(unsigned char *rate, int ratelen);
 int cckratesonly_included(unsigned char *rate, int ratelen);
diff --git a/drivers/staging/rtl8188eu/include/rtw_pwrctrl.h b/drivers/staging/rtl8188eu/include/rtw_pwrctrl.h
index 54dfbf0..aa1fd87 100644
--- a/drivers/staging/rtl8188eu/include/rtw_pwrctrl.h
+++ b/drivers/staging/rtl8188eu/include/rtw_pwrctrl.h
@@ -233,9 +233,8 @@ struct pwrctrl_priv {
 #define RTW_PWR_STATE_CHK_INTERVAL 2000
 
 #define _rtw_set_pwr_state_check_timer(pwrctrlpriv, ms) \
-	do { \
-		_set_timer(&(pwrctrlpriv)->pwr_state_check_timer, (ms)); \
-	} while (0)
+	mod_timer(&pwrctrlpriv->pwr_state_check_timer,	\
+		  jiffies + msecs_to_jiffies(ms))
 
 #define rtw_set_pwr_state_check_timer(pwrctrl)			\
 	_rtw_set_pwr_state_check_timer((pwrctrl),		\
diff --git a/drivers/staging/rtl8188eu/include/rtw_recv.h b/drivers/staging/rtl8188eu/include/rtw_recv.h
index f0c26ef..eb1ac3d 100644
--- a/drivers/staging/rtl8188eu/include/rtw_recv.h
+++ b/drivers/staging/rtl8188eu/include/rtw_recv.h
@@ -216,8 +216,8 @@ struct recv_priv {
 };
 
 #define rtw_set_signal_stat_timer(recvpriv)			\
-	_set_timer(&(recvpriv)->signal_stat_timer,		\
-		   (recvpriv)->signal_stat_sampling_interval)
+	mod_timer(&(recvpriv)->signal_stat_timer, jiffies +	\
+		  msecs_to_jiffies((recvpriv)->signal_stat_sampling_interval))
 
 struct sta_recv_priv {
 	spinlock_t lock;
@@ -278,7 +278,7 @@ void rtw_free_recvframe_queue(struct __queue *pframequeue,
 			      struct __queue *pfree_recv_queue);
 u32 rtw_free_uc_swdec_pending_queue(struct adapter *adapter);
 
-void rtw_reordering_ctrl_timeout_handler(void *pcontext);
+void rtw_reordering_ctrl_timeout_handler(unsigned long data);
 
 static inline u8 *get_rxmem(struct recv_frame *precvframe)
 {
diff --git a/drivers/staging/rtl8188eu/include/rtw_security.h b/drivers/staging/rtl8188eu/include/rtw_security.h
index 66d60aa..e9723a7 100644
--- a/drivers/staging/rtl8188eu/include/rtw_security.h
+++ b/drivers/staging/rtl8188eu/include/rtw_security.h
@@ -245,10 +245,6 @@ struct mic_data {
 };
 
 extern const u32 Te0[256];
-extern const u32 Te1[256];
-extern const u32 Te2[256];
-extern const u32 Te3[256];
-extern const u32 Te4[256];
 extern const u32 Td0[256];
 extern const u32 Td1[256];
 extern const u32 Td2[256];
@@ -269,28 +265,6 @@ static inline u32 rotr(u32 val, int bits)
 #define TE1(i) rotr(Te0[((i) >> 16) & 0xff], 8)
 #define TE2(i) rotr(Te0[((i) >> 8) & 0xff], 16)
 #define TE3(i) rotr(Te0[(i) & 0xff], 24)
-#define TE41(i) ((Te0[((i) >> 24) & 0xff] << 8) & 0xff000000)
-#define TE42(i) (Te0[((i) >> 16) & 0xff] & 0x00ff0000)
-#define TE43(i) (Te0[((i) >> 8) & 0xff] & 0x0000ff00)
-#define TE44(i) ((Te0[(i) & 0xff] >> 8) & 0x000000ff)
-#define TE421(i) ((Te0[((i) >> 16) & 0xff] << 8) & 0xff000000)
-#define TE432(i) (Te0[((i) >> 8) & 0xff] & 0x00ff0000)
-#define TE443(i) (Te0[(i) & 0xff] & 0x0000ff00)
-#define TE414(i) ((Te0[((i) >> 24) & 0xff] >> 8) & 0x000000ff)
-#define TE4(i) ((Te0[(i)] >> 8) & 0x000000ff)
-
-#define TD0(i) Td0[((i) >> 24) & 0xff]
-#define TD1(i) rotr(Td0[((i) >> 16) & 0xff], 8)
-#define TD2(i) rotr(Td0[((i) >> 8) & 0xff], 16)
-#define TD3(i) rotr(Td0[(i) & 0xff], 24)
-#define TD41(i) (Td4s[((i) >> 24) & 0xff] << 24)
-#define TD42(i) (Td4s[((i) >> 16) & 0xff] << 16)
-#define TD43(i) (Td4s[((i) >> 8) & 0xff] << 8)
-#define TD44(i) (Td4s[(i) & 0xff])
-#define TD0_(i) Td0[(i) & 0xff]
-#define TD1_(i) rotr(Td0[(i) & 0xff], 8)
-#define TD2_(i) rotr(Td0[(i) & 0xff], 16)
-#define TD3_(i) rotr(Td0[(i) & 0xff], 24)
 
 #define GETU32(pt) (((u32)(pt)[0] << 24) ^ ((u32)(pt)[1] << 16) ^ \
 			((u32)(pt)[2] <<  8) ^ ((u32)(pt)[3]))
diff --git a/drivers/staging/rtl8188eu/include/wifi.h b/drivers/staging/rtl8188eu/include/wifi.h
index 8dbdfaf..a89275e 100644
--- a/drivers/staging/rtl8188eu/include/wifi.h
+++ b/drivers/staging/rtl8188eu/include/wifi.h
@@ -301,22 +301,12 @@ enum WIFI_REG_DOMAIN {
 #define GetPrivacy(pbuf)					\
 	(((*(__le16 *)(pbuf)) & cpu_to_le16(_PRIVACY_)) != 0)
 
-#define ClearPrivacy(pbuf)	\
-	*(__le16 *)(pbuf) &= (~cpu_to_le16(_PRIVACY_))
-
-
 #define GetOrder(pbuf)					\
 	(((*(__le16 *)(pbuf)) & cpu_to_le16(_ORDER_)) != 0)
 
 #define GetFrameType(pbuf)				\
 	(le16_to_cpu(*(__le16 *)(pbuf)) & (BIT(3) | BIT(2)))
 
-#define SetFrameType(pbuf, type)	\
-	do {	\
-		*(unsigned short *)(pbuf) &= __constant_cpu_to_le16(~(BIT(3) | BIT(2))); \
-		*(unsigned short *)(pbuf) |= __constant_cpu_to_le16(type); \
-	} while (0)
-
 #define GetFrameSubType(pbuf)	(le16_to_cpu(*(__le16 *)(pbuf)) & (BIT(7) |\
 	 BIT(6) | BIT(5) | BIT(4) | BIT(3) | BIT(2)))
 
@@ -333,17 +323,6 @@ enum WIFI_REG_DOMAIN {
 #define GetFragNum(pbuf)			\
 	(le16_to_cpu(*(__le16 *)((size_t)(pbuf) + 22)) & 0x0f)
 
-#define GetTupleCache(pbuf)			\
-	(cpu_to_le16(*(unsigned short *)((size_t)(pbuf) + 22)))
-
-#define SetFragNum(pbuf, num) \
-	do {    \
-		*(unsigned short *)((size_t)(pbuf) + 22) = \
-			((*(unsigned short *)((size_t)(pbuf) + 22)) &	\
-			le16_to_cpu(~(0x000f))) | \
-			cpu_to_le16(0x0f & (num));     \
-	} while (0)
-
 #define SetSeqNum(pbuf, num) \
 	do {    \
 		*(__le16 *)((size_t)(pbuf) + 22) = \
@@ -370,15 +349,8 @@ enum WIFI_REG_DOMAIN {
 
 #define GetAMsdu(pbuf) (((le16_to_cpu(*(__le16 *)pbuf)) >> 7) & 0x1)
 
-#define SetAMsdu(pbuf, amsdu)	\
-	*(__le16 *)(pbuf) |= cpu_to_le16((amsdu & 1) << 7)
-
 #define GetAid(pbuf)	(le16_to_cpu(*(__le16 *)((size_t)(pbuf) + 2)) & 0x3fff)
 
-#define GetTid(pbuf)	(le16_to_cpu(*(__le16 *)((size_t)(pbuf) +	\
-			(((GetToDs(pbuf)<<1) | GetFrDs(pbuf)) == 3 ?	\
-			30 : 24))) & 0x000f)
-
 #define GetAddr1Ptr(pbuf)	((unsigned char *)((size_t)(pbuf) + 4))
 
 #define GetAddr2Ptr(pbuf)	((unsigned char *)((size_t)(pbuf) + 10))
@@ -916,7 +888,7 @@ enum ht_cap_ampdu_factor {
 #define	P2P_STATUS_FAIL_INCOMPATIBLE_PROVSION		0x0A
 #define	P2P_STATUS_FAIL_USER_REJECT			0x0B
 
-/*	Value of Inviation Flags Attribute */
+/*	Value of Invitation Flags Attribute */
 #define	P2P_INVITATION_FLAGS_PERSISTENT			BIT(0)
 
 #define	DMP_P2P_DEVCAP_SUPPORT	(P2P_DEVCAP_SERVICE_DISCOVERY | \
@@ -970,7 +942,7 @@ enum ht_cap_ampdu_factor {
 
 #define	P2P_WILDCARD_SSID_LEN			7
 
-/* default value, used when: (1)p2p disabed or (2)p2p enabled
+/* default value, used when: (1)p2p disabled or (2)p2p enabled
  * but only do 1 scan phase */
 #define	P2P_FINDPHASE_EX_NONE		0
 /*  used when p2p enabled and want to do 1 scan phase and
@@ -1035,13 +1007,13 @@ enum P2P_STATE {
 	P2P_STATE_TX_PROVISION_DIS_REQ = 6,
 	P2P_STATE_RX_PROVISION_DIS_RSP = 7,
 	P2P_STATE_RX_PROVISION_DIS_REQ = 8,
-	/* Doing the group owner negoitation handshake */
+	/* Doing the group owner negotiation handshake */
 	P2P_STATE_GONEGO_ING = 9,
-	/* finish the group negoitation handshake with success */
+	/* finish the group negotiation handshake with success */
 	P2P_STATE_GONEGO_OK = 10,
-	/* finish the group negoitation handshake with failure */
+	/* finish the group negotiation handshake with failure */
 	P2P_STATE_GONEGO_FAIL = 11,
-	/* receiving the P2P Inviation request and match with the profile. */
+	/* receiving the P2P Invitation request and match with the profile. */
 	P2P_STATE_RECV_INVITE_REQ_MATCH = 12,
 	/* Doing the P2P WPS */
 	P2P_STATE_PROVISIONING_ING = 13,
@@ -1051,17 +1023,17 @@ enum P2P_STATE {
 	P2P_STATE_TX_INVITE_REQ = 15,
 	/* Receiving the P2P Invitation response */
 	P2P_STATE_RX_INVITE_RESP_OK = 16,
-	/* receiving the P2P Inviation request and dismatch with the profile. */
+	/* receiving the P2P Invitation request and dismatch with the profile. */
 	P2P_STATE_RECV_INVITE_REQ_DISMATCH = 17,
-	/* receiving the P2P Inviation request and this wifi is GO. */
+	/* receiving the P2P Invitation request and this wifi is GO. */
 	P2P_STATE_RECV_INVITE_REQ_GO = 18,
-	/* receiving the P2P Inviation request to join an existing P2P Group. */
+	/* receiving the P2P Invitation request to join an existing P2P Group. */
 	P2P_STATE_RECV_INVITE_REQ_JOIN = 19,
-	/* recveing the P2P Inviation response with failure */
+	/* receiving the P2P Invitation response with failure */
 	P2P_STATE_RX_INVITE_RESP_FAIL = 20,
-	/* receiving p2p negoitation response with information is not available */
+	/* receiving p2p negotiation response with information is not available */
 	P2P_STATE_RX_INFOR_NOREADY = 21,
-	/* sending p2p negoitation response with information is not available */
+	/* sending p2p negotiation response with information is not available */
 	P2P_STATE_TX_INFOR_NOREADY = 22,
 };
 
diff --git a/drivers/staging/rtl8188eu/include/wlan_bssdef.h b/drivers/staging/rtl8188eu/include/wlan_bssdef.h
index 53b1bd8..85b99da 100644
--- a/drivers/staging/rtl8188eu/include/wlan_bssdef.h
+++ b/drivers/staging/rtl8188eu/include/wlan_bssdef.h
@@ -156,16 +156,6 @@ enum ndis_802_11_reload_def {
 	Ndis802_11ReloadWEPKeys
 };
 
-/*  Key mapping keys require a BSSID */
-struct ndis_802_11_key {
-	u32           Length;             /*  Length of this structure */
-	u32           KeyIndex;
-	u32           KeyLength;          /*  length of key in bytes */
-	unsigned char BSSID[ETH_ALEN];
-	unsigned long long KeyRSC;
-	u8           KeyMaterial[32];  /* var len depending on above field */
-};
-
 struct ndis_802_11_remove_key {
 	u32                   Length;        /*  Length */
 	u32                   KeyIndex;
diff --git a/drivers/staging/rtl8188eu/os_dep/ioctl_linux.c b/drivers/staging/rtl8188eu/os_dep/ioctl_linux.c
index 24a8f5a..96c1c2d 100644
--- a/drivers/staging/rtl8188eu/os_dep/ioctl_linux.c
+++ b/drivers/staging/rtl8188eu/os_dep/ioctl_linux.c
@@ -32,6 +32,8 @@
 
 #include <rtw_iol.h>
 #include <linux/vmalloc.h>
+#include <linux/etherdevice.h>
+
 #include "osdep_intf.h"
 
 #define RTL_IOCTL_WPA_SUPPLICANT	(SIOCIWFIRSTPRIV + 30)
@@ -92,7 +94,7 @@ void rtw_indicate_wx_disassoc_event(struct adapter *padapter)
 	memset(&wrqu, 0, sizeof(union iwreq_data));
 
 	wrqu.ap_addr.sa_family = ARPHRD_ETHER;
-	memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN);
+	eth_zero_addr(wrqu.ap_addr.sa_data);
 
 	DBG_88E_LEVEL(_drv_always_, "indicate disassoc\n");
 	wireless_send_event(padapter->pnetdev, SIOCGIWAP, &wrqu, NULL);
@@ -827,7 +829,7 @@ static int rtw_wx_set_pmkid(struct net_device *dev,
 		for (j = 0; j < NUM_PMKID_CACHE; j++) {
 			if (!memcmp(psecuritypriv->PMKIDList[j].Bssid, strIssueBssid, ETH_ALEN)) {
 				/*  BSSID is matched, the same AP => Remove this PMKID information and reset it. */
-				memset(psecuritypriv->PMKIDList[j].Bssid, 0x00, ETH_ALEN);
+				eth_zero_addr(psecuritypriv->PMKIDList[j].Bssid);
 				psecuritypriv->PMKIDList[j].bUsed = false;
 				break;
 			}
@@ -1028,7 +1030,7 @@ static int rtw_wx_get_wap(struct net_device *dev,
 
 	wrqu->ap_addr.sa_family = ARPHRD_ETHER;
 
-	memset(wrqu->ap_addr.sa_data, 0, ETH_ALEN);
+	eth_zero_addr(wrqu->ap_addr.sa_data);
 
 	RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("rtw_wx_get_wap\n"));
 
@@ -1037,7 +1039,7 @@ static int rtw_wx_get_wap(struct net_device *dev,
 	    ((check_fwstate(pmlmepriv, WIFI_AP_STATE)) == true))
 		memcpy(wrqu->ap_addr.sa_data, pcur_bss->MacAddress, ETH_ALEN);
 	else
-		memset(wrqu->ap_addr.sa_data, 0, ETH_ALEN);
+		eth_zero_addr(wrqu->ap_addr.sa_data);
 	return 0;
 }
 
@@ -1796,11 +1798,9 @@ static int rtw_wx_set_gen_ie(struct net_device *dev,
 			     struct iw_request_info *info,
 			     union iwreq_data *wrqu, char *extra)
 {
-	int ret;
 	struct adapter *padapter = (struct adapter *)rtw_netdev_priv(dev);
 
-	ret = rtw_set_wpa_ie(padapter, extra, wrqu->data.length);
-	return ret;
+	return rtw_set_wpa_ie(padapter, extra, wrqu->data.length);
 }
 
 static int rtw_wx_set_auth(struct net_device *dev,
diff --git a/drivers/staging/rtl8188eu/os_dep/mlme_linux.c b/drivers/staging/rtl8188eu/os_dep/mlme_linux.c
index 1b892c4..baff1e2 100644
--- a/drivers/staging/rtl8188eu/os_dep/mlme_linux.c
+++ b/drivers/staging/rtl8188eu/os_dep/mlme_linux.c
@@ -29,9 +29,12 @@ void rtw_init_mlme_timer(struct adapter *padapter)
 {
 	struct	mlme_priv *pmlmepriv = &padapter->mlmepriv;
 
-	_init_timer(&(pmlmepriv->assoc_timer), padapter->pnetdev, _rtw_join_timeout_handler, padapter);
-	_init_timer(&(pmlmepriv->scan_to_timer), padapter->pnetdev, rtw_scan_timeout_handler, padapter);
-	_init_timer(&(pmlmepriv->dynamic_chk_timer), padapter->pnetdev, rtw_dynamic_check_timer_handlder, padapter);
+	setup_timer(&pmlmepriv->assoc_timer, _rtw_join_timeout_handler,
+		    (unsigned long)padapter);
+	setup_timer(&pmlmepriv->scan_to_timer, rtw_scan_timeout_handler,
+		    (unsigned long)padapter);
+	setup_timer(&pmlmepriv->dynamic_chk_timer,
+		    rtw_dynamic_check_timer_handlder, (unsigned long)padapter);
 }
 
 void rtw_os_indicate_connect(struct adapter *adapter)
@@ -60,7 +63,6 @@ void rtw_reset_securitypriv(struct adapter *adapter)
 		/*  We have to backup the PMK information for WiFi PMK Caching test item. */
 		/*  Backup the btkip_countermeasure information. */
 		/*  When the countermeasure is trigger, the driver have to disconnect with AP for 60 seconds. */
-		memset(&backup_pmkid[0], 0x00, sizeof(struct rt_pmkid_list) * NUM_PMKID_CACHE);
 		memcpy(&backup_pmkid[0], &adapter->securitypriv.PMKIDList[0], sizeof(struct rt_pmkid_list) * NUM_PMKID_CACHE);
 		backup_index = adapter->securitypriv.PMKIDIndex;
 		backup_counter = adapter->securitypriv.btkip_countermeasure;
@@ -131,15 +133,18 @@ void rtw_report_sec_ie(struct adapter *adapter, u8 authmode, u8 *sec_ie)
 
 void init_addba_retry_timer(struct adapter *padapter, struct sta_info *psta)
 {
-	_init_timer(&psta->addba_retry_timer, padapter->pnetdev, addba_timer_hdl, psta);
+	setup_timer(&psta->addba_retry_timer, addba_timer_hdl,
+		    (unsigned long)psta);
 }
 
 void init_mlme_ext_timer(struct adapter *padapter)
 {
 	struct	mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
 
-	_init_timer(&pmlmeext->survey_timer, padapter->pnetdev, survey_timer_hdl, padapter);
-	_init_timer(&pmlmeext->link_timer, padapter->pnetdev, link_timer_hdl, padapter);
+	setup_timer(&pmlmeext->survey_timer, survey_timer_hdl,
+		    (unsigned long)padapter);
+	setup_timer(&pmlmeext->link_timer, link_timer_hdl,
+		    (unsigned long)padapter);
 }
 
 #ifdef CONFIG_88EU_AP_MODE
diff --git a/drivers/staging/rtl8188eu/os_dep/os_intfs.c b/drivers/staging/rtl8188eu/os_dep/os_intfs.c
index 88a909c..750c87b 100644
--- a/drivers/staging/rtl8188eu/os_dep/os_intfs.c
+++ b/drivers/staging/rtl8188eu/os_dep/os_intfs.c
@@ -38,7 +38,7 @@ MODULE_VERSION(DRIVERVERSION);
 #define RTW_NOTCH_FILTER 0 /* 0:Disable, 1:Enable, */
 
 /* module param defaults */
-static int rtw_chip_version = 0x00;
+static int rtw_chip_version;
 static int rtw_rfintfs = HWPI;
 static int rtw_lbkmode;/* RTL8712_AIR_TRX; */
 static int rtw_network_mode = Ndis802_11IBSS;/* Ndis802_11Infrastructure; infra, ad-hoc, auto */
@@ -998,7 +998,8 @@ int _netdev_open(struct net_device *pnetdev)
 	}
 	padapter->net_closed = false;
 
-	_set_timer(&padapter->mlmepriv.dynamic_chk_timer, 2000);
+	mod_timer(&padapter->mlmepriv.dynamic_chk_timer,
+		  jiffies + msecs_to_jiffies(2000));
 
 	padapter->pwrctrlpriv.bips_processing = false;
 	rtw_set_pwr_state_check_timer(&padapter->pwrctrlpriv);
@@ -1052,7 +1053,8 @@ static int  ips_netdrv_open(struct adapter *padapter)
 		padapter->intf_start(padapter);
 
 	rtw_set_pwr_state_check_timer(&padapter->pwrctrlpriv);
-	_set_timer(&padapter->mlmepriv.dynamic_chk_timer, 5000);
+	mod_timer(&padapter->mlmepriv.dynamic_chk_timer,
+		  jiffies + msecs_to_jiffies(5000));
 
 	 return _SUCCESS;
 
diff --git a/drivers/staging/rtl8188eu/os_dep/recv_linux.c b/drivers/staging/rtl8188eu/os_dep/recv_linux.c
index 05427c4..0570132 100644
--- a/drivers/staging/rtl8188eu/os_dep/recv_linux.c
+++ b/drivers/staging/rtl8188eu/os_dep/recv_linux.c
@@ -193,7 +193,8 @@ _recv_indicatepkt_drop:
 
 void rtw_init_recv_timer(struct recv_reorder_ctrl *preorder_ctrl)
 {
-	struct adapter *padapter = preorder_ctrl->padapter;
 
-	_init_timer(&(preorder_ctrl->reordering_ctrl_timer), padapter->pnetdev, rtw_reordering_ctrl_timeout_handler, preorder_ctrl);
+	setup_timer(&preorder_ctrl->reordering_ctrl_timer,
+		    rtw_reordering_ctrl_timeout_handler,
+		    (unsigned long)preorder_ctrl);
 }
diff --git a/drivers/staging/rtl8188eu/os_dep/usb_intf.c b/drivers/staging/rtl8188eu/os_dep/usb_intf.c
index bee39c2..ef3c73e 100644
--- a/drivers/staging/rtl8188eu/os_dep/usb_intf.c
+++ b/drivers/staging/rtl8188eu/os_dep/usb_intf.c
@@ -179,7 +179,7 @@ static void usb_intf_stop(struct adapter *padapter)
 {
 	RT_TRACE(_module_hci_intfs_c_, _drv_err_, ("+usb_intf_stop\n"));
 
-	/* disabel_hw_interrupt */
+	/* disable_hw_interrupt */
 	if (!padapter->bSurpriseRemoved) {
 		/* device still exists, so driver can do i/o operation */
 		/* TODO: */
diff --git a/drivers/staging/rtl8188eu/os_dep/usb_ops_linux.c b/drivers/staging/rtl8188eu/os_dep/usb_ops_linux.c
index 80e7ef9..7e599bc 100644
--- a/drivers/staging/rtl8188eu/os_dep/usb_ops_linux.c
+++ b/drivers/staging/rtl8188eu/os_dep/usb_ops_linux.c
@@ -530,6 +530,7 @@ void usb_read_port_cancel(struct adapter *padapter)
 {
 	int i;
 	struct recv_buf *precvbuf;
+
 	precvbuf = (struct recv_buf *)padapter->recvpriv.precv_buf;
 
 	DBG_88E("%s\n", __func__);
@@ -552,7 +553,6 @@ int usb_write8(struct adapter *adapter, u32 addr, u8 val)
 	u16 index;
 	u16 len;
 	u8 data;
-	int ret;
 
 	request = 0x05;
 	requesttype = 0x00;/* write_out */
@@ -560,8 +560,8 @@ int usb_write8(struct adapter *adapter, u32 addr, u8 val)
 	wvalue = (u16)(addr&0x0000ffff);
 	len = 1;
 	data = val;
-	ret = usbctrl_vendorreq(adapter, request, wvalue, index, &data, len, requesttype);
-	return ret;
+	return usbctrl_vendorreq(adapter, request, wvalue,
+				 index, &data, len, requesttype);
 }
 
 int usb_write16(struct adapter *adapter, u32 addr, u16 val)
@@ -572,7 +572,6 @@ int usb_write16(struct adapter *adapter, u32 addr, u16 val)
 	u16 index;
 	u16 len;
 	__le32 data;
-	int ret;
 
 
 	request = 0x05;
@@ -584,10 +583,10 @@ int usb_write16(struct adapter *adapter, u32 addr, u16 val)
 
 	data = cpu_to_le32(val & 0x0000ffff);
 
-	ret = usbctrl_vendorreq(adapter, request, wvalue, index, &data, len, requesttype);
+	return usbctrl_vendorreq(adapter, request, wvalue,
+				 index, &data, len, requesttype);
 
 
-	return ret;
 }
 
 int usb_write32(struct adapter *adapter, u32 addr, u32 val)
@@ -598,7 +597,6 @@ int usb_write32(struct adapter *adapter, u32 addr, u32 val)
 	u16 index;
 	u16 len;
 	__le32 data;
-	int ret;
 
 
 	request = 0x05;
@@ -609,10 +607,10 @@ int usb_write32(struct adapter *adapter, u32 addr, u32 val)
 	len = 4;
 	data = cpu_to_le32(val);
 
-	ret = usbctrl_vendorreq(adapter, request, wvalue, index, &data, len, requesttype);
+	return usbctrl_vendorreq(adapter, request, wvalue,
+				 index, &data, len, requesttype);
 
 
-	return ret;
 }
 
 static void usb_write_port_complete(struct urb *purb, struct pt_regs *regs)
diff --git a/drivers/staging/rtl8192e/dot11d.h b/drivers/staging/rtl8192e/dot11d.h
index eeea5026..aad3394 100644
--- a/drivers/staging/rtl8192e/dot11d.h
+++ b/drivers/staging/rtl8192e/dot11d.h
@@ -74,16 +74,11 @@ static inline void cpMacAddr(unsigned char *des, unsigned char *src)
 	(GET_DOT11D_INFO(__pIeeeDev)->CountryIeLen > 0)
 
 #define IS_EQUAL_CIE_SRC(__pIeeeDev, __pTa)		\
-	 eqMacAddr(GET_DOT11D_INFO(__pIeeeDev)->CountryIeSrcAddr, __pTa)
+	 ether_addr_equal_unaligned(GET_DOT11D_INFO(__pIeeeDev)->CountryIeSrcAddr, \
+	__pTa)
 #define UPDATE_CIE_SRC(__pIeeeDev, __pTa)		\
 	cpMacAddr(GET_DOT11D_INFO(__pIeeeDev)->CountryIeSrcAddr, __pTa)
 
-#define IS_COUNTRY_IE_CHANGED(__pIeeeDev, __Ie) \
-	(((__Ie).Length == 0 || (__Ie).Length !=	\
-	GET_DOT11D_INFO(__pIeeeDev)->CountryIeLen) ?	\
-	false : (!memcmp(GET_DOT11D_INFO(__pIeeeDev)->CountryIeBuf,	\
-	(__Ie).Octet, (__Ie).Length)))
-
 #define CIE_WATCHDOG_TH 1
 #define GET_CIE_WATCHDOG(__pIeeeDev)				\
 	 (GET_DOT11D_INFO(__pIeeeDev)->CountryIeWatchdog)
diff --git a/drivers/staging/rtl8192e/rtl8192e/r8190P_rtl8256.c b/drivers/staging/rtl8192e/rtl8192e/r8190P_rtl8256.c
index 0e6bdd2..01d2201 100644
--- a/drivers/staging/rtl8192e/rtl8192e/r8190P_rtl8256.c
+++ b/drivers/staging/rtl8192e/rtl8192e/r8190P_rtl8256.c
@@ -47,8 +47,8 @@ void PHY_SetRF8256Bandwidth(struct net_device *dev,
 						0x0e, bMask12Bits, 0x021);
 
 			} else {
-				RT_TRACE(COMP_ERR, "PHY_SetRF8256Bandwidth(): "
-					 "unknown hardware version\n");
+				RT_TRACE(COMP_ERR,
+					 "PHY_SetRF8256Bandwidth(): unknown hardware version\n");
 			}
 
 			break;
@@ -66,15 +66,16 @@ void PHY_SetRF8256Bandwidth(struct net_device *dev,
 						 0x0e, bMask12Bits, 0x0e1);
 
 			} else {
-				RT_TRACE(COMP_ERR, "PHY_SetRF8256Bandwidth(): "
-					 "unknown hardware version\n");
+				RT_TRACE(COMP_ERR,
+					 "PHY_SetRF8256Bandwidth(): unknown hardware version\n");
 			}
 
 
 			break;
 		default:
-			RT_TRACE(COMP_ERR, "PHY_SetRF8256Bandwidth(): unknown "
-				 "Bandwidth: %#X\n", Bandwidth);
+			RT_TRACE(COMP_ERR,
+				 "PHY_SetRF8256Bandwidth(): unknown Bandwidth: %#X\n",
+				 Bandwidth);
 			break;
 
 		}
@@ -138,8 +139,9 @@ bool phy_RF8256_Config_ParaFile(struct net_device *dev)
 		rtStatus = rtl8192_phy_checkBBAndRF(dev, HW90_BLOCK_RF,
 						(enum rf90_radio_path)eRFPath);
 		if (!rtStatus) {
-			RT_TRACE(COMP_ERR, "PHY_RF8256_Config():Check "
-				 "Radio[%d] Fail!!\n", eRFPath);
+			RT_TRACE(COMP_ERR,
+				 "PHY_RF8256_Config():Check Radio[%d] Fail!!\n",
+				 eRFPath);
 			goto phy_RF8256_Config_ParaFile_Fail;
 		}
 
@@ -155,9 +157,10 @@ bool phy_RF8256_Config_ParaFile(struct net_device *dev)
 						 (enum rf90_radio_path)eRFPath,
 						 RegOffSetToBeCheck,
 						 bMask12Bits);
-				RT_TRACE(COMP_RF, "RF %d %d register final "
-					 "value: %x\n", eRFPath,
-					 RegOffSetToBeCheck, RF3_Final_Value);
+				RT_TRACE(COMP_RF,
+					 "RF %d %d register final value: %x\n",
+					 eRFPath, RegOffSetToBeCheck,
+					 RF3_Final_Value);
 				RetryTimes--;
 			}
 			break;
@@ -170,9 +173,10 @@ bool phy_RF8256_Config_ParaFile(struct net_device *dev)
 						 (enum rf90_radio_path)eRFPath,
 						 RegOffSetToBeCheck,
 						 bMask12Bits);
-				RT_TRACE(COMP_RF, "RF %d %d register final "
-					 "value: %x\n", eRFPath,
-					  RegOffSetToBeCheck, RF3_Final_Value);
+				RT_TRACE(COMP_RF,
+					 "RF %d %d register final value: %x\n",
+					 eRFPath, RegOffSetToBeCheck,
+					 RF3_Final_Value);
 				RetryTimes--;
 			}
 			break;
@@ -185,9 +189,10 @@ bool phy_RF8256_Config_ParaFile(struct net_device *dev)
 						(enum rf90_radio_path)eRFPath,
 						RegOffSetToBeCheck,
 						bMask12Bits);
-				RT_TRACE(COMP_RF, "RF %d %d register final "
-					 "value: %x\n", eRFPath,
-					 RegOffSetToBeCheck, RF3_Final_Value);
+				RT_TRACE(COMP_RF,
+					 "RF %d %d register final value: %x\n",
+					 eRFPath, RegOffSetToBeCheck,
+					 RF3_Final_Value);
 				RetryTimes--;
 			}
 			break;
@@ -199,9 +204,10 @@ bool phy_RF8256_Config_ParaFile(struct net_device *dev)
 				RF3_Final_Value = rtl8192_phy_QueryRFReg(dev,
 					       (enum rf90_radio_path)eRFPath,
 					       RegOffSetToBeCheck, bMask12Bits);
-				RT_TRACE(COMP_RF, "RF %d %d register final "
-					 "value: %x\n", eRFPath,
-					  RegOffSetToBeCheck, RF3_Final_Value);
+				RT_TRACE(COMP_RF,
+					 "RF %d %d register final value: %x\n",
+					 eRFPath, RegOffSetToBeCheck,
+					 RF3_Final_Value);
 				RetryTimes--;
 			}
 			break;
@@ -221,8 +227,9 @@ bool phy_RF8256_Config_ParaFile(struct net_device *dev)
 		}
 
 		if (ret) {
-			RT_TRACE(COMP_ERR, "phy_RF8256_Config_ParaFile():"
-				 "Radio[%d] Fail!!", eRFPath);
+			RT_TRACE(COMP_ERR,
+				 "phy_RF8256_Config_ParaFile():Radio[%d] Fail!!",
+				 eRFPath);
 			goto phy_RF8256_Config_ParaFile_Fail;
 		}
 
diff --git a/drivers/staging/rtl8192e/rtl8192e/r8192E_cmdpkt.c b/drivers/staging/rtl8192e/rtl8192e/r8192E_cmdpkt.c
index 2b1430d..ecdd2e5 100644
--- a/drivers/staging/rtl8192e/rtl8192e/r8192E_cmdpkt.c
+++ b/drivers/staging/rtl8192e/rtl8192e/r8192E_cmdpkt.c
@@ -46,7 +46,7 @@ bool cmpk_message_handle_tx(
 
 	do {
 		if ((buffer_len - frag_offset) > frag_threshold) {
-			frag_length = frag_threshold ;
+			frag_length = frag_threshold;
 			bLastIniPkt = 0;
 
 		} else {
@@ -165,7 +165,7 @@ static void cmdpkt_beacontimerinterrupt_819xusb(struct net_device *dev)
 
 static void cmpk_handle_interrupt_status(struct net_device *dev, u8 *pmsg)
 {
-	struct cmpk_intr_sta rx_intr_status;	/* */
+	struct cmpk_intr_sta rx_intr_status;
 	struct r8192_priv *priv = rtllib_priv(dev);
 
 	DMESG("---> cmpk_Handle_Interrupt_Status()\n");
@@ -332,44 +332,44 @@ u32 cmpk_message_handle_rx(struct net_device *dev,
 
 		switch (element_id) {
 		case RX_TX_FEEDBACK:
-			RT_TRACE(COMP_CMDPKT, "---->cmpk_message_handle_rx():"
-				 "RX_TX_FEEDBACK\n");
+			RT_TRACE(COMP_CMDPKT,
+				 "---->cmpk_message_handle_rx():RX_TX_FEEDBACK\n");
 			cmpk_handle_tx_feedback(dev, pcmd_buff);
 			cmd_length = CMPK_RX_TX_FB_SIZE;
 			break;
 		case RX_INTERRUPT_STATUS:
-			RT_TRACE(COMP_CMDPKT, "---->cmpk_message_handle_rx():"
-				 "RX_INTERRUPT_STATUS\n");
+			RT_TRACE(COMP_CMDPKT,
+				 "---->cmpk_message_handle_rx():RX_INTERRUPT_STATUS\n");
 			cmpk_handle_interrupt_status(dev, pcmd_buff);
 			cmd_length = sizeof(struct cmpk_intr_sta);
 			break;
 		case BOTH_QUERY_CONFIG:
-			RT_TRACE(COMP_CMDPKT, "---->cmpk_message_handle_rx():"
-				 "BOTH_QUERY_CONFIG\n");
+			RT_TRACE(COMP_CMDPKT,
+				 "---->cmpk_message_handle_rx():BOTH_QUERY_CONFIG\n");
 			cmpk_handle_query_config_rx(dev, pcmd_buff);
 			cmd_length = CMPK_BOTH_QUERY_CONFIG_SIZE;
 			break;
 		case RX_TX_STATUS:
-			RT_TRACE(COMP_CMDPKT, "---->cmpk_message_handle_rx():"
-				 "RX_TX_STATUS\n");
+			RT_TRACE(COMP_CMDPKT,
+				 "---->cmpk_message_handle_rx():RX_TX_STATUS\n");
 			cmpk_handle_tx_status(dev, pcmd_buff);
 			cmd_length = CMPK_RX_TX_STS_SIZE;
 			break;
 		case RX_TX_PER_PKT_FEEDBACK:
-			RT_TRACE(COMP_CMDPKT, "---->cmpk_message_handle_rx():"
-				 "RX_TX_PER_PKT_FEEDBACK\n");
+			RT_TRACE(COMP_CMDPKT,
+				 "---->cmpk_message_handle_rx():RX_TX_PER_PKT_FEEDBACK\n");
 			cmd_length = CMPK_RX_TX_FB_SIZE;
 			break;
 		case RX_TX_RATE_HISTORY:
-			RT_TRACE(COMP_CMDPKT, "---->cmpk_message_handle_rx():"
-				 "RX_TX_HISTORY\n");
+			RT_TRACE(COMP_CMDPKT,
+				 "---->cmpk_message_handle_rx():RX_TX_HISTORY\n");
 			cmpk_handle_tx_rate_history(dev, pcmd_buff);
 			cmd_length = CMPK_TX_RAHIS_SIZE;
 			break;
 		default:
 
-			RT_TRACE(COMP_CMDPKT, "---->cmpk_message_handle_rx():"
-				 "unknown CMD Element\n");
+			RT_TRACE(COMP_CMDPKT,
+				 "---->cmpk_message_handle_rx():unknown CMD Element\n");
 			return 1;
 		}
 
diff --git a/drivers/staging/rtl8192e/rtl8192e/r8192E_cmdpkt.h b/drivers/staging/rtl8192e/rtl8192e/r8192E_cmdpkt.h
index 23219e1..2693682 100644
--- a/drivers/staging/rtl8192e/rtl8192e/r8192E_cmdpkt.h
+++ b/drivers/staging/rtl8192e/rtl8192e/r8192E_cmdpkt.h
@@ -33,28 +33,28 @@
 struct cmpk_txfb {
 	u8	element_id;
 	u8	length;
-	u8	TID:4;				/* */
-	u8	fail_reason:3;		/* */
+	u8	TID:4;
+	u8	fail_reason:3;
 	u8	tok:1;
-	u8	reserve1:4;			/* */
-	u8	pkt_type:2;		/* */
-	u8	bandwidth:1;		/* */
-	u8	qos_pkt:1;			/* */
+	u8	reserve1:4;
+	u8	pkt_type:2;
+	u8	bandwidth:1;
+	u8	qos_pkt:1;
 
-	u8	reserve2;			/* */
-	u8	retry_cnt;			/* */
-	u16	pkt_id;				/* */
+	u8	reserve2;
+	u8	retry_cnt;
+	u16	pkt_id;
 
-	u16	seq_num;			/* */
+	u16	seq_num;
 	u8	s_rate;
 	u8	f_rate;
 
-	u8	s_rts_rate;			/* */
-	u8	f_rts_rate;			/* */
-	u16	pkt_length;			/* */
+	u8	s_rts_rate;
+	u8	f_rts_rate;
+	u16	pkt_length;
 
-	u16	reserve3;			/* */
-	u16	duration;			/* */
+	u16	reserve3;
+	u16	duration;
 };
 
 struct cmpk_intr_sta {
diff --git a/drivers/staging/rtl8192e/rtl8192e/r8192E_dev.c b/drivers/staging/rtl8192e/rtl8192e/r8192E_dev.c
index 552d943..2869602 100644
--- a/drivers/staging/rtl8192e/rtl8192e/r8192E_dev.c
+++ b/drivers/staging/rtl8192e/rtl8192e/r8192E_dev.c
@@ -224,8 +224,8 @@ void rtl8192e_SetHwReg(struct net_device *dev, u8 variable, u8 *val)
 			break;
 
 		default:
-			printk(KERN_INFO "SetHwReg8185(): invalid ACI: %d !\n",
-			       eACI);
+			netdev_info(dev, "SetHwReg8185(): invalid ACI: %d !\n",
+				    eACI);
 			break;
 		}
 		priv->rtllib->SetHwRegHandler(dev, HW_VAR_ACM_CTRL,
@@ -263,9 +263,9 @@ void rtl8192e_SetHwReg(struct net_device *dev, u8 variable, u8 *val)
 				break;
 
 			default:
-				RT_TRACE(COMP_QOS, "SetHwReg8185(): [HW_VAR_"
-					 "ACM_CTRL] acm set failed: eACI is "
-					 "%d\n", eACI);
+				RT_TRACE(COMP_QOS,
+					 "SetHwReg8185(): [HW_VAR_ACM_CTRL] acm set failed: eACI is %d\n",
+					 eACI);
 				break;
 			}
 		} else {
@@ -287,8 +287,9 @@ void rtl8192e_SetHwReg(struct net_device *dev, u8 variable, u8 *val)
 			}
 		}
 
-		RT_TRACE(COMP_QOS, "SetHwReg8190pci(): [HW_VAR_ACM_CTRL] Write"
-			 " 0x%X\n", AcmCtrl);
+		RT_TRACE(COMP_QOS,
+			 "SetHwReg8190pci(): [HW_VAR_ACM_CTRL] Write 0x%X\n",
+			 AcmCtrl);
 		write_nic_byte(dev, AcmHwCtrl, AcmCtrl);
 		break;
 	}
@@ -334,17 +335,17 @@ static void rtl8192_read_eeprom_info(struct net_device *dev)
 	}
 
 	if (!priv->AutoloadFailFlag) {
-		priv->eeprom_vid = eprom_read(dev, (EEPROM_VID >> 1));
-		priv->eeprom_did = eprom_read(dev, (EEPROM_DID >> 1));
+		priv->eeprom_vid = eprom_read(dev, EEPROM_VID >> 1);
+		priv->eeprom_did = eprom_read(dev, EEPROM_DID >> 1);
 
 		usValue = eprom_read(dev, (u16)(EEPROM_Customer_ID>>1)) >> 8;
 		priv->eeprom_CustomerID = (u8)(usValue & 0xff);
-		usValue = eprom_read(dev, (EEPROM_ICVersion_ChannelPlan>>1));
+		usValue = eprom_read(dev, EEPROM_ICVersion_ChannelPlan>>1);
 		priv->eeprom_ChannelPlan = usValue&0xff;
-		IC_Version = ((usValue&0xff00)>>8);
+		IC_Version = (usValue & 0xff00)>>8;
 
 		ICVer8192 = (IC_Version&0xf);
-		ICVer8256 = ((IC_Version&0xf0)>>4);
+		ICVer8256 = (IC_Version & 0xf0)>>4;
 		RT_TRACE(COMP_INIT, "\nICVer8192 = 0x%x\n", ICVer8192);
 		RT_TRACE(COMP_INIT, "\nICVer8256 = 0x%x\n", ICVer8256);
 		if (ICVer8192 == 0x2) {
@@ -424,7 +425,7 @@ static void rtl8192_read_eeprom_info(struct net_device *dev)
 		if (priv->epromtype == EEPROM_93C46) {
 			if (!priv->AutoloadFailFlag) {
 				usValue = eprom_read(dev,
-					  (EEPROM_TxPwDiff_CrystalCap >> 1));
+					  EEPROM_TxPwDiff_CrystalCap >> 1);
 				priv->EEPROMAntPwDiff = (usValue&0x0fff);
 				priv->EEPROMCrystalCap = (u8)((usValue & 0xf000)
 							 >> 12);
@@ -448,12 +449,12 @@ static void rtl8192_read_eeprom_info(struct net_device *dev)
 					usValue = EEPROM_Default_TxPower;
 				*((u16 *)(&priv->EEPROMTxPowerLevelCCK[i])) =
 								 usValue;
-				RT_TRACE(COMP_INIT, "CCK Tx Power Level, Index"
-					 " %d = 0x%02x\n", i,
-					 priv->EEPROMTxPowerLevelCCK[i]);
-				RT_TRACE(COMP_INIT, "CCK Tx Power Level, Index"
-					 " %d = 0x%02x\n", i+1,
-					 priv->EEPROMTxPowerLevelCCK[i+1]);
+				RT_TRACE(COMP_INIT,
+					 "CCK Tx Power Level, Index %d = 0x%02x\n",
+					 i, priv->EEPROMTxPowerLevelCCK[i]);
+				RT_TRACE(COMP_INIT,
+					 "CCK Tx Power Level, Index %d = 0x%02x\n",
+					 i+1, priv->EEPROMTxPowerLevelCCK[i+1]);
 			}
 			for (i = 0; i < 14; i += 2) {
 				if (!priv->AutoloadFailFlag)
@@ -464,11 +465,12 @@ static void rtl8192_read_eeprom_info(struct net_device *dev)
 					usValue = EEPROM_Default_TxPower;
 				*((u16 *)(&priv->EEPROMTxPowerLevelOFDM24G[i]))
 							 = usValue;
-				RT_TRACE(COMP_INIT, "OFDM 2.4G Tx Power Level,"
-					 " Index %d = 0x%02x\n", i,
-					 priv->EEPROMTxPowerLevelOFDM24G[i]);
-				RT_TRACE(COMP_INIT, "OFDM 2.4G Tx Power Level,"
-					 " Index %d = 0x%02x\n", i + 1,
+				RT_TRACE(COMP_INIT,
+					 "OFDM 2.4G Tx Power Level, Index %d = 0x%02x\n",
+					 i, priv->EEPROMTxPowerLevelOFDM24G[i]);
+				RT_TRACE(COMP_INIT,
+					 "OFDM 2.4G Tx Power Level, Index %d = 0x%02x\n",
+					 i + 1,
 					 priv->EEPROMTxPowerLevelOFDM24G[i+1]);
 			}
 		}
@@ -483,15 +485,15 @@ static void rtl8192_read_eeprom_info(struct net_device *dev)
 					 priv->EEPROMLegacyHTTxPowerDiff;
 			priv->AntennaTxPwDiff[0] = (priv->EEPROMAntPwDiff &
 						    0xf);
-			priv->AntennaTxPwDiff[1] = ((priv->EEPROMAntPwDiff &
-						    0xf0)>>4);
-			priv->AntennaTxPwDiff[2] = ((priv->EEPROMAntPwDiff &
-						    0xf00)>>8);
+			priv->AntennaTxPwDiff[1] = (priv->EEPROMAntPwDiff &
+							0xf0) >> 4;
+			priv->AntennaTxPwDiff[2] = (priv->EEPROMAntPwDiff &
+							0xf00) >> 8;
 			priv->CrystalCap = priv->EEPROMCrystalCap;
 			priv->ThermalMeter[0] = (priv->EEPROMThermalMeter &
 						 0xf);
-			priv->ThermalMeter[1] = ((priv->EEPROMThermalMeter &
-						 0xf0)>>4);
+			priv->ThermalMeter[1] = (priv->EEPROMThermalMeter &
+						     0xf0) >> 4;
 		} else if (priv->epromtype == EEPROM_93C56) {
 
 			for (i = 0; i < 3; i++) {
@@ -525,21 +527,21 @@ static void rtl8192_read_eeprom_info(struct net_device *dev)
 					 priv->EEPROMRfCOfdmChnlTxPwLevel[2];
 			}
 			for (i = 0; i < 14; i++)
-				RT_TRACE(COMP_INIT, "priv->TxPowerLevelCCK_A"
-					 "[%d] = 0x%x\n", i,
-					 priv->TxPowerLevelCCK_A[i]);
+				RT_TRACE(COMP_INIT,
+					 "priv->TxPowerLevelCCK_A[%d] = 0x%x\n",
+					 i, priv->TxPowerLevelCCK_A[i]);
 			for (i = 0; i < 14; i++)
-				RT_TRACE(COMP_INIT, "priv->TxPowerLevelOFDM"
-					 "24G_A[%d] = 0x%x\n", i,
-					 priv->TxPowerLevelOFDM24G_A[i]);
+				RT_TRACE(COMP_INIT,
+					 "priv->TxPowerLevelOFDM24G_A[%d] = 0x%x\n",
+					 i, priv->TxPowerLevelOFDM24G_A[i]);
 			for (i = 0; i < 14; i++)
-				RT_TRACE(COMP_INIT, "priv->TxPowerLevelCCK_C"
-					 "[%d] = 0x%x\n", i,
-					 priv->TxPowerLevelCCK_C[i]);
+				RT_TRACE(COMP_INIT,
+					 "priv->TxPowerLevelCCK_C[%d] = 0x%x\n",
+					 i, priv->TxPowerLevelCCK_C[i]);
 			for (i = 0; i < 14; i++)
-				RT_TRACE(COMP_INIT, "priv->TxPowerLevelOFDM"
-					 "24G_C[%d] = 0x%x\n", i,
-					 priv->TxPowerLevelOFDM24G_C[i]);
+				RT_TRACE(COMP_INIT,
+					 "priv->TxPowerLevelOFDM24G_C[%d] = 0x%x\n",
+					 i, priv->TxPowerLevelOFDM24G_C[i]);
 			priv->LegacyHTTxPowerDiff =
 				 priv->EEPROMLegacyHTTxPowerDiff;
 			priv->AntennaTxPwDiff[0] = 0;
@@ -548,8 +550,8 @@ static void rtl8192_read_eeprom_info(struct net_device *dev)
 			priv->CrystalCap = priv->EEPROMCrystalCap;
 			priv->ThermalMeter[0] = (priv->EEPROMThermalMeter &
 						 0xf);
-			priv->ThermalMeter[1] = ((priv->EEPROMThermalMeter &
-						 0xf0)>>4);
+			priv->ThermalMeter[1] = (priv->EEPROMThermalMeter &
+						     0xf0) >> 4;
 		}
 	}
 
@@ -735,8 +737,9 @@ start:
 	else if (priv->pFirmware->firmware_status == FW_STATUS_5_READY)
 		ulRegRead |= CPU_GEN_FIRMWARE_RESET;
 	else
-		RT_TRACE(COMP_ERR, "ERROR in %s(): undefined firmware state(%d)"
-			 "\n", __func__,   priv->pFirmware->firmware_status);
+		RT_TRACE(COMP_ERR,
+			 "ERROR in %s(): undefined firmware state(%d)\n",
+			 __func__,   priv->pFirmware->firmware_status);
 
 	write_nic_dword(dev, CPU_GEN, ulRegRead);
 
@@ -766,8 +769,8 @@ start:
 		else if (priv->LoopbackMode == RTL819X_MAC_LOOPBACK)
 			ulRegRead |= CPU_CCK_LOOPBACK;
 		else
-			RT_TRACE(COMP_ERR, "Serious error: wrong loopback"
-				 " mode setting\n");
+			RT_TRACE(COMP_ERR,
+				 "Serious error: wrong loopback mode setting\n");
 
 		write_nic_dword(dev, CPU_GEN, ulRegRead);
 
@@ -883,15 +886,15 @@ start:
 			  __func__);
 		MgntActSet_RF_State(dev, eRfOff, RF_CHANGE_BY_SW, true);
 	} else if (priv->rtllib->RfOffReason > RF_CHANGE_BY_PS) {
-		RT_TRACE((COMP_INIT|COMP_RF|COMP_POWER), "%s(): Turn off RF for"
-			 " RfOffReason(%d) ----------\n", __func__,
-			 priv->rtllib->RfOffReason);
+		RT_TRACE((COMP_INIT|COMP_RF|COMP_POWER),
+			 "%s(): Turn off RF for RfOffReason(%d) ----------\n",
+			 __func__, priv->rtllib->RfOffReason);
 		MgntActSet_RF_State(dev, eRfOff, priv->rtllib->RfOffReason,
 				    true);
 	} else if (priv->rtllib->RfOffReason >= RF_CHANGE_BY_IPS) {
-		RT_TRACE((COMP_INIT|COMP_RF|COMP_POWER), "%s(): Turn off RF for"
-			 " RfOffReason(%d) ----------\n", __func__,
-			 priv->rtllib->RfOffReason);
+		RT_TRACE((COMP_INIT|COMP_RF|COMP_POWER),
+			 "%s(): Turn off RF for RfOffReason(%d) ----------\n",
+			 __func__, priv->rtllib->RfOffReason);
 		MgntActSet_RF_State(dev, eRfOff, priv->rtllib->RfOffReason,
 				    true);
 	} else {
@@ -939,17 +942,17 @@ start:
 			priv->CCKPresentAttentuation_difference = 0;
 			priv->CCKPresentAttentuation =
 				  priv->CCKPresentAttentuation_20Mdefault;
-			RT_TRACE(COMP_POWER_TRACKING, "priv->rfa_txpower"
-				 "trackingindex_initial = %d\n",
+			RT_TRACE(COMP_POWER_TRACKING,
+				 "priv->rfa_txpowertrackingindex_initial = %d\n",
 				 priv->rfa_txpowertrackingindex);
-			RT_TRACE(COMP_POWER_TRACKING, "priv->rfa_txpower"
-				 "trackingindex_real__initial = %d\n",
+			RT_TRACE(COMP_POWER_TRACKING,
+				 "priv->rfa_txpowertrackingindex_real__initial = %d\n",
 				 priv->rfa_txpowertrackingindex_real);
-			RT_TRACE(COMP_POWER_TRACKING, "priv->CCKPresent"
-				 "Attentuation_difference_initial = %d\n",
+			RT_TRACE(COMP_POWER_TRACKING,
+				 "priv->CCKPresentAttentuation_difference_initial = %d\n",
 				  priv->CCKPresentAttentuation_difference);
-			RT_TRACE(COMP_POWER_TRACKING, "priv->CCKPresent"
-				 "Attentuation_initial = %d\n",
+			RT_TRACE(COMP_POWER_TRACKING,
+				 "priv->CCKPresentAttentuation_initial = %d\n",
 				 priv->CCKPresentAttentuation);
 			priv->btxpower_tracking = false;
 		}
@@ -1169,8 +1172,9 @@ static u8 rtl8192_MapHwQueueToFirmwareQueue(u8 QueueID, u8 priority)
 		QueueSelect = QSLT_HIGH;
 		break;
 	default:
-		RT_TRACE(COMP_ERR, "TransmitTCB(): Impossible Queue Selection:"
-			 " %d\n", QueueID);
+		RT_TRACE(COMP_ERR,
+			 "TransmitTCB(): Impossible Queue Selection: %d\n",
+			 QueueID);
 		break;
 	}
 	return QueueSelect;
@@ -1361,9 +1365,10 @@ static u8 HwRateToMRate90(bool bIsHT, u8 rate)
 			break;
 
 		default:
-			RT_TRACE(COMP_RECV, "HwRateToMRate90(): Non supported"
-				 "Rate [%x], bIsHT = %d!!!\n", rate, bIsHT);
-						  break;
+			RT_TRACE(COMP_RECV,
+				 "HwRateToMRate90(): Non supportedRate [%x], bIsHT = %d!!!\n",
+				 rate, bIsHT);
+			break;
 		}
 
 	} else {
@@ -1421,8 +1426,9 @@ static u8 HwRateToMRate90(bool bIsHT, u8 rate)
 			break;
 
 		default:
-			RT_TRACE(COMP_RECV, "HwRateToMRate90(): Non supported "
-				 "Rate [%x], bIsHT = %d!!!\n", rate, bIsHT);
+			RT_TRACE(COMP_RECV,
+				 "HwRateToMRate90(): Non supported Rate [%x], bIsHT = %d!!!\n",
+				 rate, bIsHT);
 			break;
 		}
 	}
@@ -1527,7 +1533,7 @@ static void rtl8192_query_rxphystatus(
 		priv->stats.numqry_phystatusCCK++;
 		if (!reg824_bit9) {
 			report = pcck_buf->cck_agc_rpt & 0xc0;
-			report = report>>6;
+			report >>= 6;
 			switch (report) {
 			case 0x3:
 				rx_pwr_all = -35 - (pcck_buf->cck_agc_rpt &
@@ -1547,7 +1553,7 @@ static void rtl8192_query_rxphystatus(
 			}
 		} else {
 			report = pcck_buf->cck_agc_rpt & 0x60;
-			report = report>>5;
+			report >>= 5;
 			switch (report) {
 			case 0x3:
 				rx_pwr_all = -35 -
@@ -1737,8 +1743,8 @@ static void rtl8192_process_phyinfo(struct r8192_priv *priv, u8 *buffer,
 			if (!rtl8192_phy_CheckIsLegalRFPath(priv->rtllib->dev,
 			    rfpath))
 				continue;
-			RT_TRACE(COMP_DBG, "Jacken -> pPreviousstats->RxMIMO"
-				 "SignalStrength[rfpath]  = %d\n",
+			RT_TRACE(COMP_DBG,
+				 "Jacken -> pPreviousstats->RxMIMOSignalStrength[rfpath]  = %d\n",
 				 prev_st->RxMIMOSignalStrength[rfpath]);
 			if (priv->stats.rx_rssi_percentage[rfpath] == 0) {
 				priv->stats.rx_rssi_percentage[rfpath] =
@@ -1761,8 +1767,8 @@ static void rtl8192_process_phyinfo(struct r8192_priv *priv, u8 *buffer,
 				   (prev_st->RxMIMOSignalStrength[rfpath])) /
 				   (RX_SMOOTH);
 			}
-			RT_TRACE(COMP_DBG, "Jacken -> priv->RxStats.RxRSSI"
-				 "Percentage[rfPath]  = %d\n",
+			RT_TRACE(COMP_DBG,
+				 "Jacken -> priv->RxStats.RxRSSIPercentage[rfPath]  = %d\n",
 				 priv->stats.rx_rssi_percentage[rfpath]);
 		}
 	}
@@ -2019,6 +2025,7 @@ bool rtl8192_rx_query_status_desc(struct net_device *dev,
 				  struct sk_buff *skb)
 {
 	struct r8192_priv *priv = rtllib_priv(dev);
+	struct rx_fwinfo *pDrvInfo = NULL;
 
 	stats->bICV = pdesc->ICV;
 	stats->bCRC = pdesc->CRC32;
@@ -2040,51 +2047,49 @@ bool rtl8192_rx_query_status_desc(struct net_device *dev,
 				priv->stats.rxcrcerrmid++;
 		}
 		return false;
-	} else {
-		struct rx_fwinfo *pDrvInfo = NULL;
+	}
 
-		stats->RxDrvInfoSize = pdesc->RxDrvInfoSize;
-		stats->RxBufShift = ((pdesc->Shift)&0x03);
-		stats->Decrypted = !pdesc->SWDec;
+	stats->RxDrvInfoSize = pdesc->RxDrvInfoSize;
+	stats->RxBufShift = ((pdesc->Shift)&0x03);
+	stats->Decrypted = !pdesc->SWDec;
 
-		pDrvInfo = (struct rx_fwinfo *)(skb->data + stats->RxBufShift);
+	pDrvInfo = (struct rx_fwinfo *)(skb->data + stats->RxBufShift);
 
-		stats->rate = HwRateToMRate90((bool)pDrvInfo->RxHT,
-					     (u8)pDrvInfo->RxRate);
-		stats->bShortPreamble = pDrvInfo->SPLCP;
+	stats->rate = HwRateToMRate90((bool)pDrvInfo->RxHT,
+				     (u8)pDrvInfo->RxRate);
+	stats->bShortPreamble = pDrvInfo->SPLCP;
 
-		rtl8192_UpdateReceivedRateHistogramStatistics(dev, stats);
+	rtl8192_UpdateReceivedRateHistogramStatistics(dev, stats);
 
-		stats->bIsAMPDU = (pDrvInfo->PartAggr == 1);
-		stats->bFirstMPDU = (pDrvInfo->PartAggr == 1) &&
-				    (pDrvInfo->FirstAGGR == 1);
+	stats->bIsAMPDU = (pDrvInfo->PartAggr == 1);
+	stats->bFirstMPDU = (pDrvInfo->PartAggr == 1) &&
+			    (pDrvInfo->FirstAGGR == 1);
 
-		stats->TimeStampLow = pDrvInfo->TSFL;
-		stats->TimeStampHigh = read_nic_dword(dev, TSFR+4);
+	stats->TimeStampLow = pDrvInfo->TSFL;
+	stats->TimeStampHigh = read_nic_dword(dev, TSFR+4);
 
-		rtl819x_UpdateRxPktTimeStamp(dev, stats);
+	rtl819x_UpdateRxPktTimeStamp(dev, stats);
 
-		if ((stats->RxBufShift + stats->RxDrvInfoSize) > 0)
-			stats->bShift = 1;
+	if ((stats->RxBufShift + stats->RxDrvInfoSize) > 0)
+		stats->bShift = 1;
 
-		stats->RxIs40MHzPacket = pDrvInfo->BW;
+	stats->RxIs40MHzPacket = pDrvInfo->BW;
 
-		rtl8192_TranslateRxSignalStuff(dev, skb, stats, pdesc,
-					       pDrvInfo);
+	rtl8192_TranslateRxSignalStuff(dev, skb, stats, pdesc,
+				       pDrvInfo);
 
-		if (pDrvInfo->FirstAGGR == 1 || pDrvInfo->PartAggr == 1)
-			RT_TRACE(COMP_RXDESC, "pDrvInfo->FirstAGGR = %d,"
-				 " pDrvInfo->PartAggr = %d\n",
-				 pDrvInfo->FirstAGGR, pDrvInfo->PartAggr);
-		skb_trim(skb, skb->len - 4/*sCrcLng*/);
+	if (pDrvInfo->FirstAGGR == 1 || pDrvInfo->PartAggr == 1)
+		RT_TRACE(COMP_RXDESC,
+			 "pDrvInfo->FirstAGGR = %d, pDrvInfo->PartAggr = %d\n",
+			 pDrvInfo->FirstAGGR, pDrvInfo->PartAggr);
+	skb_trim(skb, skb->len - 4/*sCrcLng*/);
 
 
-		stats->packetlength = stats->Length-4;
-		stats->fraglength = stats->packetlength;
-		stats->fragoffset = 0;
-		stats->ntotalfrag = 1;
-		return true;
-	}
+	stats->packetlength = stats->Length-4;
+	stats->fraglength = stats->packetlength;
+	stats->fragoffset = 0;
+	stats->ntotalfrag = 1;
+	return true;
 }
 
 void rtl8192_halt_adapter(struct net_device *dev, bool reset)
@@ -2132,7 +2137,6 @@ void rtl8192_halt_adapter(struct net_device *dev, bool reset)
 		skb_queue_purge(&priv->rtllib->skb_aggQ[i]);
 
 	skb_queue_purge(&priv->skb_queue);
-	return;
 }
 
 void rtl8192_update_ratr_table(struct net_device *dev)
@@ -2191,8 +2195,7 @@ rtl8192_InitializeVariables(struct net_device  *dev)
 
 	priv->rtllib->softmac_features  = IEEE_SOFTMAC_SCAN |
 		IEEE_SOFTMAC_ASSOCIATE | IEEE_SOFTMAC_PROBERQ |
-		IEEE_SOFTMAC_PROBERS | IEEE_SOFTMAC_TX_QUEUE /* |
-		IEEE_SOFTMAC_BEACONS*/;
+		IEEE_SOFTMAC_PROBERS | IEEE_SOFTMAC_TX_QUEUE;
 
 	priv->rtllib->tx_headroom = sizeof(struct tx_fwinfo_8190pci);
 
@@ -2308,8 +2311,7 @@ bool rtl8192_HalRxCheckStuck(struct net_device *dev)
 	  (priv->undecorated_smoothed_pwdb >= RateAdaptiveTH_Low_20M)))) {
 		if (rx_chk_cnt < 2)
 			return bStuck;
-		else
-			rx_chk_cnt = 0;
+		rx_chk_cnt = 0;
 	} else if ((((priv->CurrentChannelBW != HT_CHANNEL_WIDTH_20) &&
 		  (priv->undecorated_smoothed_pwdb < RateAdaptiveTH_Low_40M)) ||
 		((priv->CurrentChannelBW == HT_CHANNEL_WIDTH_20) &&
@@ -2317,13 +2319,11 @@ bool rtl8192_HalRxCheckStuck(struct net_device *dev)
 		priv->undecorated_smoothed_pwdb >= VeryLowRSSI) {
 		if (rx_chk_cnt < 4)
 			return bStuck;
-		else
-			rx_chk_cnt = 0;
+		rx_chk_cnt = 0;
 	} else {
 		if (rx_chk_cnt < 8)
 			return bStuck;
-		else
-			rx_chk_cnt = 0;
+		rx_chk_cnt = 0;
 	}
 
 
@@ -2413,5 +2413,4 @@ void ActUpdateChannelAccessSetting(struct net_device *dev,
 	enum wireless_mode WirelessMode,
 	struct channel_access_setting *ChnlAccessSetting)
 {
-	return;
 }
diff --git a/drivers/staging/rtl8192e/rtl8192e/r8192E_firmware.c b/drivers/staging/rtl8192e/rtl8192e/r8192E_firmware.c
index 2e28744..c465f87 100644
--- a/drivers/staging/rtl8192e/rtl8192e/r8192E_firmware.c
+++ b/drivers/staging/rtl8192e/rtl8192e/r8192E_firmware.c
@@ -36,7 +36,6 @@ static bool fw_download_code(struct net_device *dev, u8 *code_virtual_address,
 			     u32 buffer_len)
 {
 	struct r8192_priv *priv = rtllib_priv(dev);
-	bool		    rt_status = true;
 	u16		    frag_threshold;
 	u16		    frag_length, frag_offset = 0;
 	int		    i;
@@ -51,7 +50,7 @@ static bool fw_download_code(struct net_device *dev, u8 *code_virtual_address,
 	frag_threshold = pfirmware->cmdpacket_frag_thresold;
 	do {
 		if ((buffer_len - frag_offset) > frag_threshold) {
-			frag_length = frag_threshold ;
+			frag_length = frag_threshold;
 			bLastIniPkt = 0;
 
 		} else {
@@ -84,8 +83,8 @@ static bool fw_download_code(struct net_device *dev, u8 *code_virtual_address,
 		if (!priv->rtllib->check_nic_enough_desc(dev, tcb_desc->queue_index) ||
 		    (!skb_queue_empty(&priv->rtllib->skb_waitQ[tcb_desc->queue_index])) ||
 		    (priv->rtllib->queue_stop)) {
-			RT_TRACE(COMP_FIRMWARE, "===================> tx "
-				 "full!\n");
+			RT_TRACE(COMP_FIRMWARE,
+				 "===================> tx full!\n");
 			skb_queue_tail(&priv->rtllib->skb_waitQ
 					[tcb_desc->queue_index], skb);
 		} else {
@@ -99,7 +98,7 @@ static bool fw_download_code(struct net_device *dev, u8 *code_virtual_address,
 
 	write_nic_byte(dev, TPPoll, TPPoll_CQ);
 
-	return rt_status;
+	return true;
 }
 
 static bool CPUcheck_maincodeok_turnonCPU(struct net_device *dev)
@@ -108,7 +107,7 @@ static bool CPUcheck_maincodeok_turnonCPU(struct net_device *dev)
 	u32		CPU_status = 0;
 	unsigned long   timeout;
 
-	timeout = jiffies + MSECS(200);
+	timeout = jiffies + msecs_to_jiffies(200);
 	while (time_before(jiffies, timeout)) {
 		CPU_status = read_nic_dword(dev, CPU_GEN);
 		if (CPU_status & CPU_GEN_PUT_CODE_OK)
@@ -128,7 +127,7 @@ static bool CPUcheck_maincodeok_turnonCPU(struct net_device *dev)
 		       (u8)((CPU_status|CPU_GEN_PWR_STB_CPU)&0xff));
 	mdelay(1);
 
-	timeout = jiffies + MSECS(200);
+	timeout = jiffies + msecs_to_jiffies(200);
 	while (time_before(jiffies, timeout)) {
 		CPU_status = read_nic_dword(dev, CPU_GEN);
 		if (CPU_status&CPU_GEN_BOOT_RDY)
@@ -156,7 +155,7 @@ static bool CPUcheck_firmware_ready(struct net_device *dev)
 	u32	CPU_status = 0;
 	unsigned long timeout;
 
-	timeout = jiffies + MSECS(20);
+	timeout = jiffies + msecs_to_jiffies(20);
 	while (time_before(jiffies, timeout)) {
 		CPU_status = read_nic_dword(dev, CPU_GEN);
 		if (CPU_status&CPU_GEN_FIRM_RDY)
@@ -197,8 +196,8 @@ static bool firmware_check_ready(struct net_device *dev,
 		if (rt_status)
 			pfirmware->firmware_status = FW_STATUS_3_TURNON_CPU;
 		else
-			RT_TRACE(COMP_FIRMWARE, "CPUcheck_maincodeok_turnon"
-				 "CPU fail!\n");
+			RT_TRACE(COMP_FIRMWARE,
+				 "CPUcheck_maincodeok_turnonCPU fail!\n");
 
 		break;
 
@@ -210,8 +209,9 @@ static bool firmware_check_ready(struct net_device *dev,
 		if (rt_status)
 			pfirmware->firmware_status = FW_STATUS_5_READY;
 		else
-			RT_TRACE(COMP_FIRMWARE, "CPUcheck_firmware_ready fail"
-				 "(%d)!\n", rt_status);
+			RT_TRACE(COMP_FIRMWARE,
+				 "CPUcheck_firmware_ready fail(%d)!\n",
+				 rt_status);
 
 		break;
 	default:
@@ -246,8 +246,8 @@ bool init_firmware(struct net_device *dev)
 		rst_opt = OPT_FIRMWARE_RESET;
 		starting_state = FW_INIT_STEP2_DATA;
 	} else {
-		RT_TRACE(COMP_FIRMWARE, "PlatformInitFirmware: undefined"
-			 " firmware state\n");
+		RT_TRACE(COMP_FIRMWARE,
+			 "PlatformInitFirmware: undefined firmware state\n");
 	}
 
 	for (init_step = starting_state; init_step <= FW_INIT_STEP2_DATA;
@@ -266,14 +266,14 @@ bool init_firmware(struct net_device *dev)
 						      fw_name[init_step],
 						      &priv->pdev->dev);
 				if (rc < 0) {
-					RT_TRACE(COMP_FIRMWARE, "request firmware fail!\n");
+					RT_TRACE(COMP_FIRMWARE,
+						 "request firmware fail!\n");
 					goto download_firmware_fail;
 				}
 				if (fw_entry->size >
 				    sizeof(pfirmware->firmware_buf[init_step])) {
-					RT_TRACE(COMP_FIRMWARE, "img file size "
-						 "exceed the container struct "
-						 "buffer fail!\n");
+					RT_TRACE(COMP_FIRMWARE,
+						 "img file size exceed the container struct buffer fail!\n");
 					goto download_firmware_fail;
 				}
 
@@ -301,13 +301,11 @@ bool init_firmware(struct net_device *dev)
 		file_length = pfirmware->firmware_buf_size[init_step];
 
 		rt_status = fw_download_code(dev, mapped_file, file_length);
-		if (!rt_status) {
+		if (!rt_status)
 			goto download_firmware_fail;
-		}
 
-		if (!firmware_check_ready(dev, init_step)) {
+		if (!firmware_check_ready(dev, init_step))
 			goto download_firmware_fail;
-		}
 	}
 
 	RT_TRACE(COMP_FIRMWARE, "Firmware Download Success\n");
diff --git a/drivers/staging/rtl8192e/rtl8192e/r8192E_hwimg.h b/drivers/staging/rtl8192e/rtl8192e/r8192E_hwimg.h
index 019836b..d804876 100644
--- a/drivers/staging/rtl8192e/rtl8192e/r8192E_hwimg.h
+++ b/drivers/staging/rtl8192e/rtl8192e/r8192E_hwimg.h
@@ -34,18 +34,18 @@ extern u32 Rtl8192PciEPHY_REGArray[PHY_REGArrayLengthPciE];
 #define PHY_REG_1T2RArrayLengthPciE 296
 extern u32 Rtl8192PciEPHY_REG_1T2RArray[PHY_REG_1T2RArrayLengthPciE];
 #define RadioA_ArrayLengthPciE 246
-extern u32 Rtl8192PciERadioA_Array[RadioA_ArrayLengthPciE] ;
+extern u32 Rtl8192PciERadioA_Array[RadioA_ArrayLengthPciE];
 #define RadioB_ArrayLengthPciE 78
-extern u32 Rtl8192PciERadioB_Array[RadioB_ArrayLengthPciE] ;
+extern u32 Rtl8192PciERadioB_Array[RadioB_ArrayLengthPciE];
 #define RadioC_ArrayLengthPciE 2
-extern u32 Rtl8192PciERadioC_Array[RadioC_ArrayLengthPciE] ;
+extern u32 Rtl8192PciERadioC_Array[RadioC_ArrayLengthPciE];
 #define RadioD_ArrayLengthPciE 2
-extern u32 Rtl8192PciERadioD_Array[RadioD_ArrayLengthPciE] ;
+extern u32 Rtl8192PciERadioD_Array[RadioD_ArrayLengthPciE];
 #define MACPHY_ArrayLengthPciE 18
-extern u32 Rtl8192PciEMACPHY_Array[MACPHY_ArrayLengthPciE] ;
+extern u32 Rtl8192PciEMACPHY_Array[MACPHY_ArrayLengthPciE];
 #define MACPHY_Array_PGLengthPciE 30
-extern u32 Rtl8192PciEMACPHY_Array_PG[MACPHY_Array_PGLengthPciE] ;
+extern u32 Rtl8192PciEMACPHY_Array_PG[MACPHY_Array_PGLengthPciE];
 #define AGCTAB_ArrayLengthPciE 384
-extern u32 Rtl8192PciEAGCTAB_Array[AGCTAB_ArrayLengthPciE] ;
+extern u32 Rtl8192PciEAGCTAB_Array[AGCTAB_ArrayLengthPciE];
 
 #endif
diff --git a/drivers/staging/rtl8192e/rtl8192e/r8192E_phy.c b/drivers/staging/rtl8192e/rtl8192e/r8192E_phy.c
index 8c08ef6..4664a4f 100644
--- a/drivers/staging/rtl8192e/rtl8192e/r8192E_phy.c
+++ b/drivers/staging/rtl8192e/rtl8192e/r8192E_phy.c
@@ -94,7 +94,6 @@ void rtl8192_setBBreg(struct net_device *dev, u32 dwRegAddr, u32 dwBitMask,
 		write_nic_dword(dev, dwRegAddr, NewValue);
 	} else
 		write_nic_dword(dev, dwRegAddr, dwData);
-	return;
 }
 
 u32 rtl8192_QueryBBReg(struct net_device *dev, u32 dwRegAddr, u32 dwBitMask)
@@ -136,8 +135,8 @@ static u32 rtl8192_phy_RFSerialRead(struct net_device *dev,
 		} else
 			NewOffset = Offset;
 	} else {
-		RT_TRACE((COMP_PHY|COMP_ERR), "check RF type here, need"
-			 " to be 8256\n");
+		RT_TRACE((COMP_PHY|COMP_ERR),
+			 "check RF type here, need to be 8256\n");
 		NewOffset = Offset;
 	}
 	rtl8192_setBBreg(dev, pPhyReg->rfHSSIPara2, bLSSIReadAddress,
@@ -192,8 +191,8 @@ static void rtl8192_phy_RFSerialWrite(struct net_device *dev,
 		} else
 			NewOffset = Offset;
 	} else {
-		RT_TRACE((COMP_PHY|COMP_ERR), "check RF type here, need to be"
-			 " 8256\n");
+		RT_TRACE((COMP_PHY|COMP_ERR),
+			 "check RF type here, need to be 8256\n");
 		NewOffset = Offset;
 	}
 
@@ -215,7 +214,6 @@ static void rtl8192_phy_RFSerialWrite(struct net_device *dev,
 		}
 		rtl8192_setBBreg(dev, rFPGA0_AnalogParameter4, 0x300, 0x3);
 	}
-	return;
 }
 
 void rtl8192_phy_SetRFReg(struct net_device *dev, enum rf90_radio_path eRFPath,
@@ -256,7 +254,6 @@ void rtl8192_phy_SetRFReg(struct net_device *dev, enum rf90_radio_path eRFPath,
 		} else
 			rtl8192_phy_RFSerialWrite(dev, eRFPath, RegAddr, Data);
 	}
-	return;
 }
 
 u32 rtl8192_phy_QueryRFReg(struct net_device *dev, enum rf90_radio_path eRFPath,
@@ -307,7 +304,7 @@ static u32 phy_FwRFSerialRead(struct net_device *dev,
 	}
 	return read_nic_dword(dev, RF_DATA);
 
-}	/* phy_FwRFSerialRead */
+}
 
 static void phy_FwRFSerialWrite(struct net_device *dev,
 				enum rf90_radio_path eRFPath,
@@ -328,7 +325,7 @@ static void phy_FwRFSerialWrite(struct net_device *dev,
 	}
 	write_nic_dword(dev, QPNR, Data);
 
-}	/* phy_FwRFSerialWrite */
+}
 
 
 void rtl8192_phy_configmac(struct net_device *dev)
@@ -348,8 +345,8 @@ void rtl8192_phy_configmac(struct net_device *dev)
 		pdwArray = Rtl819XMACPHY_Array;
 	}
 	for (i = 0; i < dwArrayLen; i += 3) {
-		RT_TRACE(COMP_DBG, "The Rtl8190MACPHY_Array[0] is %x Rtl8190MAC"
-			 "PHY_Array[1] is %x Rtl8190MACPHY_Array[2] is %x\n",
+		RT_TRACE(COMP_DBG,
+			 "The Rtl8190MACPHY_Array[0] is %x Rtl8190MACPHY_Array[1] is %x Rtl8190MACPHY_Array[2] is %x\n",
 			 pdwArray[i], pdwArray[i+1], pdwArray[i+2]);
 		if (pdwArray[i] == 0x318)
 			pdwArray[i+2] = 0x00000800;
@@ -383,8 +380,8 @@ void rtl8192_phyConfigBB(struct net_device *dev, u8 ConfigType)
 			rtl8192_setBBreg(dev, Rtl819XPHY_REGArray_Table[i],
 					 bMaskDWord,
 					 Rtl819XPHY_REGArray_Table[i+1]);
-			RT_TRACE(COMP_DBG, "i: %x, The Rtl819xUsbPHY_REGArray"
-				 "[0] is %x Rtl819xUsbPHY_REGArray[1] is %x\n",
+			RT_TRACE(COMP_DBG,
+				 "i: %x, The Rtl819xUsbPHY_REGArray[0] is %x Rtl819xUsbPHY_REGArray[1] is %x\n",
 				 i, Rtl819XPHY_REGArray_Table[i],
 				 Rtl819XPHY_REGArray_Table[i+1]);
 		}
@@ -393,13 +390,12 @@ void rtl8192_phyConfigBB(struct net_device *dev, u8 ConfigType)
 			rtl8192_setBBreg(dev, Rtl819XAGCTAB_Array_Table[i],
 					 bMaskDWord,
 					 Rtl819XAGCTAB_Array_Table[i+1]);
-			RT_TRACE(COMP_DBG, "i:%x, The rtl819XAGCTAB_Array[0] "
-				 "is %x rtl819XAGCTAB_Array[1] is %x\n", i,
-				 Rtl819XAGCTAB_Array_Table[i],
+			RT_TRACE(COMP_DBG,
+				 "i:%x, The rtl819XAGCTAB_Array[0] is %x rtl819XAGCTAB_Array[1] is %x\n",
+				 i, Rtl819XAGCTAB_Array_Table[i],
 				 Rtl819XAGCTAB_Array_Table[i+1]);
 		}
 	}
-	return;
 }
 
 static void rtl8192_InitBBRFRegDef(struct net_device *dev)
@@ -511,8 +507,8 @@ bool rtl8192_phy_checkBBAndRF(struct net_device *dev,
 	for (i = 0; i < CheckTimes; i++) {
 		switch (CheckBlock) {
 		case HW90_BLOCK_MAC:
-			RT_TRACE(COMP_ERR, "PHY_CheckBBRFOK(): Never Write "
-				 "0x100 here!");
+			RT_TRACE(COMP_ERR,
+				 "PHY_CheckBBRFOK(): Never Write 0x100 here!");
 			break;
 
 		case HW90_BLOCK_PHY0:
@@ -541,8 +537,9 @@ bool rtl8192_phy_checkBBAndRF(struct net_device *dev,
 
 
 		if (dwRegRead != WriteData[i]) {
-			RT_TRACE(COMP_ERR, "====>error=====dwRegRead: %x, "
-				 "WriteData: %x\n", dwRegRead, WriteData[i]);
+			RT_TRACE(COMP_ERR,
+				 "====>error=====dwRegRead: %x, WriteData: %x\n",
+				 dwRegRead, WriteData[i]);
 			ret = false;
 			break;
 		}
@@ -570,8 +567,9 @@ static bool rtl8192_BB_Config_ParaFile(struct net_device *dev)
 					 (enum hw90_block)eCheckItem,
 					 (enum rf90_radio_path)0);
 		if (!rtStatus) {
-			RT_TRACE((COMP_ERR | COMP_PHY), "PHY_RF8256_Config():"
-				 "Check PHY%d Fail!!\n", eCheckItem-1);
+			RT_TRACE((COMP_ERR | COMP_PHY),
+				 "PHY_RF8256_Config():Check PHY%d Fail!!\n",
+				 eCheckItem-1);
 			return rtStatus;
 		}
 	}
@@ -628,8 +626,8 @@ void rtl8192_phy_getTxPower(struct net_device *dev)
 	priv->DefaultInitialGain[1] = read_nic_byte(dev, rOFDM0_XBAGCCore1);
 	priv->DefaultInitialGain[2] = read_nic_byte(dev, rOFDM0_XCAGCCore1);
 	priv->DefaultInitialGain[3] = read_nic_byte(dev, rOFDM0_XDAGCCore1);
-	RT_TRACE(COMP_INIT, "Default initial gain (c50=0x%x, c58=0x%x, "
-		"c60=0x%x, c68=0x%x)\n",
+	RT_TRACE(COMP_INIT,
+		 "Default initial gain (c50=0x%x, c58=0x%x, c60=0x%x, c68=0x%x)\n",
 		priv->DefaultInitialGain[0], priv->DefaultInitialGain[1],
 		priv->DefaultInitialGain[2], priv->DefaultInitialGain[3]);
 
@@ -638,7 +636,6 @@ void rtl8192_phy_getTxPower(struct net_device *dev)
 	RT_TRACE(COMP_INIT, "Default framesync (0x%x) = 0x%x\n",
 		rOFDM0_RxDetector3, priv->framesync);
 	priv->SifsTime = read_nic_word(dev, SIFS);
-	return;
 }
 
 void rtl8192_phy_setTxPower(struct net_device *dev, u8 channel)
@@ -692,7 +689,6 @@ void rtl8192_phy_setTxPower(struct net_device *dev, u8 channel)
 			 __func__);
 		break;
 	}
-	return;
 }
 
 bool rtl8192_phy_RFConfig(struct net_device *dev)
@@ -721,7 +717,6 @@ bool rtl8192_phy_RFConfig(struct net_device *dev)
 
 void rtl8192_phy_updateInitGain(struct net_device *dev)
 {
-	return;
 }
 
 u8 rtl8192_phy_ConfigRFWithHeaderFile(struct net_device *dev,
@@ -807,11 +802,10 @@ static void rtl8192_SetTxPowerLevel(struct net_device *dev, u8 channel)
 	case RF_8258:
 		break;
 	default:
-		RT_TRACE(COMP_ERR, "unknown rf chip ID in rtl8192_SetTxPower"
-			 "Level()\n");
+		RT_TRACE(COMP_ERR,
+			 "unknown rf chip ID in rtl8192_SetTxPowerLevel()\n");
 		break;
 	}
-	return;
 }
 
 static u8 rtl8192_phy_SetSwChnlCmdArray(struct sw_chnl_cmd *CmdTable,
@@ -822,15 +816,14 @@ static u8 rtl8192_phy_SetSwChnlCmdArray(struct sw_chnl_cmd *CmdTable,
 	struct sw_chnl_cmd *pCmd;
 
 	if (CmdTable == NULL) {
-		RT_TRACE(COMP_ERR, "phy_SetSwChnlCmdArray(): CmdTable cannot "
-			 "be NULL.\n");
+		RT_TRACE(COMP_ERR,
+			 "phy_SetSwChnlCmdArray(): CmdTable cannot be NULL.\n");
 		return false;
 	}
 	if (CmdTableIdx >= CmdTableSz) {
-		RT_TRACE(COMP_ERR, "phy_SetSwChnlCmdArray(): Access invalid"
-			 " index, please check size of the table, CmdTableIdx:"
-			 "%d, CmdTableSz:%d\n",
-				CmdTableIdx, CmdTableSz);
+		RT_TRACE(COMP_ERR,
+			 "phy_SetSwChnlCmdArray(): Access invalid index, please check size of the table, CmdTableIdx:%d, CmdTableSz:%d\n",
+			 CmdTableIdx, CmdTableSz);
 		return false;
 	}
 
@@ -883,8 +876,9 @@ static u8 rtl8192_phy_SwChnlStepByStep(struct net_device *dev, u8 channel,
 		switch (priv->rf_chip) {
 		case RF_8225:
 			if (!(channel >= 1 && channel <= 14)) {
-				RT_TRACE(COMP_ERR, "illegal channel for Zebra "
-					 "8225: %d\n", channel);
+				RT_TRACE(COMP_ERR,
+					 "illegal channel for Zebra 8225: %d\n",
+					 channel);
 				return false;
 			}
 			rtl8192_phy_SetSwChnlCmdArray(ieee->RfDependCmd,
@@ -898,8 +892,9 @@ static u8 rtl8192_phy_SwChnlStepByStep(struct net_device *dev, u8 channel,
 
 		case RF_8256:
 			if (!(channel >= 1 && channel <= 14)) {
-				RT_TRACE(COMP_ERR, "illegal channel for Zebra"
-					 " 8256: %d\n", channel);
+				RT_TRACE(COMP_ERR,
+					 "illegal channel for Zebra 8256: %d\n",
+					 channel);
 				return false;
 			}
 			rtl8192_phy_SetSwChnlCmdArray(ieee->RfDependCmd,
@@ -920,7 +915,6 @@ static u8 rtl8192_phy_SwChnlStepByStep(struct net_device *dev, u8 channel,
 			RT_TRACE(COMP_ERR, "Unknown RFChipID: %d\n",
 				 priv->rf_chip);
 			return false;
-			break;
 		}
 
 
@@ -938,13 +932,11 @@ static u8 rtl8192_phy_SwChnlStepByStep(struct net_device *dev, u8 channel,
 			}
 
 			if (CurrentCmd && CurrentCmd->CmdID == CmdID_End) {
-				if ((*stage) == 2) {
+				if ((*stage) == 2)
 					return true;
-				} else {
-					(*stage)++;
-					(*step) = 0;
-					continue;
-				}
+				(*stage)++;
+				(*step) = 0;
+				continue;
 			}
 
 			if (!CurrentCmd)
@@ -996,7 +988,7 @@ static void rtl8192_phy_FinishSwChnlNow(struct net_device *dev, u8 channel)
 	      &priv->SwChnlStep, &delay)) {
 		if (delay > 0)
 			msleep(delay);
-		if (IS_NIC_DOWN(priv))
+		if (!priv->up)
 			break;
 	}
 }
@@ -1020,7 +1012,7 @@ u8 rtl8192_phy_SwChnl(struct net_device *dev, u8 channel)
 	struct r8192_priv *priv = rtllib_priv(dev);
 
 	RT_TRACE(COMP_PHY, "=====>%s()\n", __func__);
-	if (IS_NIC_DOWN(priv)) {
+	if (!priv->up) {
 		RT_TRACE(COMP_ERR, "%s(): ERR !! driver is not up\n", __func__);
 		return false;
 	}
@@ -1060,7 +1052,7 @@ u8 rtl8192_phy_SwChnl(struct net_device *dev, u8 channel)
 	priv->SwChnlStage = 0;
 	priv->SwChnlStep = 0;
 
-	if (!IS_NIC_DOWN(priv))
+	if (priv->up)
 		rtl8192_SwChnl_WorkItem(dev);
 	priv->SwChnlInProgress = false;
 	return true;
@@ -1083,8 +1075,8 @@ static void CCK_Tx_Power_Track_BW_Switch_TSSI(struct net_device *dev)
 		if (priv->CCKPresentAttentuation < 0)
 			priv->CCKPresentAttentuation = 0;
 
-		RT_TRACE(COMP_POWER_TRACKING, "20M, priv->CCKPresent"
-			 "Attentuation = %d\n",
+		RT_TRACE(COMP_POWER_TRACKING,
+			 "20M, priv->CCKPresentAttentuation = %d\n",
 			 priv->CCKPresentAttentuation);
 
 		if (priv->rtllib->current_network.channel == 14 &&
@@ -1105,8 +1097,8 @@ static void CCK_Tx_Power_Track_BW_Switch_TSSI(struct net_device *dev)
 			priv->CCKPresentAttentuation_40Mdefault +
 			priv->CCKPresentAttentuation_difference;
 
-		RT_TRACE(COMP_POWER_TRACKING, "40M, priv->CCKPresent"
-			 "Attentuation = %d\n",
+		RT_TRACE(COMP_POWER_TRACKING,
+			 "40M, priv->CCKPresentAttentuation = %d\n",
 			 priv->CCKPresentAttentuation);
 		if (priv->CCKPresentAttentuation >
 		    (CCKTxBBGainTableLength - 1))
@@ -1146,15 +1138,15 @@ static void CCK_Tx_Power_Track_BW_Switch_ThermalMeter(struct net_device *dev)
 		if (priv->Record_CCK_20Mindex == 0)
 			priv->Record_CCK_20Mindex = 6;
 		priv->CCK_index = priv->Record_CCK_20Mindex;
-		RT_TRACE(COMP_POWER_TRACKING, "20MHz, CCK_Tx_Power_Track_BW_"
-			 "Switch_ThermalMeter(),CCK_index = %d\n",
+		RT_TRACE(COMP_POWER_TRACKING,
+			 "20MHz, CCK_Tx_Power_Track_BW_Switch_ThermalMeter(),CCK_index = %d\n",
 			 priv->CCK_index);
 	break;
 
 	case HT_CHANNEL_WIDTH_20_40:
 		priv->CCK_index = priv->Record_CCK_40Mindex;
-		RT_TRACE(COMP_POWER_TRACKING, "40MHz, CCK_Tx_Power_Track_BW_"
-			 "Switch_ThermalMeter(), CCK_index = %d\n",
+		RT_TRACE(COMP_POWER_TRACKING,
+			 "40MHz, CCK_Tx_Power_Track_BW_Switch_ThermalMeter(), CCK_index = %d\n",
 			 priv->CCK_index);
 	break;
 	}
@@ -1177,16 +1169,17 @@ void rtl8192_SetBWModeWorkItem(struct net_device *dev)
 	struct r8192_priv *priv = rtllib_priv(dev);
 	u8 regBwOpMode;
 
-	RT_TRACE(COMP_SWBW, "==>rtl8192_SetBWModeWorkItem()  Switch to %s "
-		 "bandwidth\n", priv->CurrentChannelBW == HT_CHANNEL_WIDTH_20 ?
-		 "20MHz" : "40MHz");
+	RT_TRACE(COMP_SWBW,
+		 "==>rtl8192_SetBWModeWorkItem()  Switch to %s bandwidth\n",
+		 priv->CurrentChannelBW == HT_CHANNEL_WIDTH_20 ?
+			 "20MHz" : "40MHz");
 
 
 	if (priv->rf_chip == RF_PSEUDO_11N) {
 		priv->SetBWModeInProgress = false;
 		return;
 	}
-	if (IS_NIC_DOWN(priv)) {
+	if (!priv->up) {
 		RT_TRACE(COMP_ERR, "%s(): ERR!! driver is not up\n", __func__);
 		return;
 	}
@@ -1204,8 +1197,9 @@ void rtl8192_SetBWModeWorkItem(struct net_device *dev)
 		break;
 
 	default:
-		RT_TRACE(COMP_ERR, "SetChannelBandwidth819xUsb(): unknown "
-			 "Bandwidth: %#X\n", priv->CurrentChannelBW);
+		RT_TRACE(COMP_ERR,
+			 "SetChannelBandwidth819xUsb(): unknown Bandwidth: %#X\n",
+			 priv->CurrentChannelBW);
 		break;
 	}
 
@@ -1245,8 +1239,9 @@ void rtl8192_SetBWModeWorkItem(struct net_device *dev)
 		rtl8192_setBBreg(dev, rFPGA0_AnalogParameter1, 0x00100000, 0);
 		break;
 	default:
-		RT_TRACE(COMP_ERR, "SetChannelBandwidth819xUsb(): unknown "
-			 "Bandwidth: %#X\n", priv->CurrentChannelBW);
+		RT_TRACE(COMP_ERR,
+			 "SetChannelBandwidth819xUsb(): unknown Bandwidth: %#X\n",
+			 priv->CurrentChannelBW);
 		break;
 
 	}
@@ -1309,11 +1304,11 @@ void InitialGain819xPci(struct net_device *dev, u8 Operation)
 	u32 BitMask;
 	u8 initial_gain;
 
-	if (!IS_NIC_DOWN(priv)) {
+	if (priv->up) {
 		switch (Operation) {
 		case IG_Backup:
-			RT_TRACE(COMP_SCAN, "IG_Backup, backup the initial"
-				 " gain.\n");
+			RT_TRACE(COMP_SCAN,
+				 "IG_Backup, backup the initial gain.\n");
 			initial_gain = SCAN_RX_INITIAL_GAIN;
 			BitMask = bMaskByte0;
 			if (dm_digtable.dig_algorithm ==
@@ -1335,16 +1330,21 @@ void InitialGain819xPci(struct net_device *dev, u8 Operation)
 			priv->initgain_backup.cca = (u8)rtl8192_QueryBBReg(dev,
 						    rCCK0_CCA, BitMask);
 
-			RT_TRACE(COMP_SCAN, "Scan InitialGainBackup 0xc50 is"
-				 " %x\n", priv->initgain_backup.xaagccore1);
-			RT_TRACE(COMP_SCAN, "Scan InitialGainBackup 0xc58 is"
-				 " %x\n", priv->initgain_backup.xbagccore1);
-			RT_TRACE(COMP_SCAN, "Scan InitialGainBackup 0xc60 is"
-				 " %x\n", priv->initgain_backup.xcagccore1);
-			RT_TRACE(COMP_SCAN, "Scan InitialGainBackup 0xc68 is"
-				 " %x\n", priv->initgain_backup.xdagccore1);
-			RT_TRACE(COMP_SCAN, "Scan InitialGainBackup 0xa0a is"
-				 " %x\n", priv->initgain_backup.cca);
+			RT_TRACE(COMP_SCAN,
+				 "Scan InitialGainBackup 0xc50 is %x\n",
+				 priv->initgain_backup.xaagccore1);
+			RT_TRACE(COMP_SCAN,
+				 "Scan InitialGainBackup 0xc58 is %x\n",
+				 priv->initgain_backup.xbagccore1);
+			RT_TRACE(COMP_SCAN,
+				 "Scan InitialGainBackup 0xc60 is %x\n",
+				 priv->initgain_backup.xcagccore1);
+			RT_TRACE(COMP_SCAN,
+				 "Scan InitialGainBackup 0xc68 is %x\n",
+				 priv->initgain_backup.xdagccore1);
+			RT_TRACE(COMP_SCAN,
+				 "Scan InitialGainBackup 0xa0a is %x\n",
+				 priv->initgain_backup.cca);
 
 			RT_TRACE(COMP_SCAN, "Write scan initial gain = 0x%x\n",
 				 initial_gain);
@@ -1357,8 +1357,8 @@ void InitialGain819xPci(struct net_device *dev, u8 Operation)
 			write_nic_byte(dev, 0xa0a, POWER_DETECTION_TH);
 			break;
 		case IG_Restore:
-			RT_TRACE(COMP_SCAN, "IG_Restore, restore the initial "
-				 "gain.\n");
+			RT_TRACE(COMP_SCAN,
+				 "IG_Restore, restore the initial gain.\n");
 			BitMask = 0x7f;
 			if (dm_digtable.dig_algorithm ==
 			    DIG_ALGO_BY_FALSE_ALARM)
@@ -1376,16 +1376,21 @@ void InitialGain819xPci(struct net_device *dev, u8 Operation)
 			rtl8192_setBBreg(dev, rCCK0_CCA, BitMask,
 					 (u32)priv->initgain_backup.cca);
 
-			RT_TRACE(COMP_SCAN, "Scan BBInitialGainRestore 0xc50"
-				 " is %x\n", priv->initgain_backup.xaagccore1);
-			RT_TRACE(COMP_SCAN, "Scan BBInitialGainRestore 0xc58"
-				 " is %x\n", priv->initgain_backup.xbagccore1);
-			RT_TRACE(COMP_SCAN, "Scan BBInitialGainRestore 0xc60"
-				 " is %x\n", priv->initgain_backup.xcagccore1);
-			RT_TRACE(COMP_SCAN, "Scan BBInitialGainRestore 0xc68"
-				 " is %x\n", priv->initgain_backup.xdagccore1);
-			RT_TRACE(COMP_SCAN, "Scan BBInitialGainRestore 0xa0a"
-				 " is %x\n", priv->initgain_backup.cca);
+			RT_TRACE(COMP_SCAN,
+				 "Scan BBInitialGainRestore 0xc50 is %x\n",
+				 priv->initgain_backup.xaagccore1);
+			RT_TRACE(COMP_SCAN,
+				 "Scan BBInitialGainRestore 0xc58 is %x\n",
+				 priv->initgain_backup.xbagccore1);
+			RT_TRACE(COMP_SCAN,
+				 "Scan BBInitialGainRestore 0xc60 is %x\n",
+				 priv->initgain_backup.xcagccore1);
+			RT_TRACE(COMP_SCAN,
+				 "Scan BBInitialGainRestore 0xc68 is %x\n",
+				 priv->initgain_backup.xdagccore1);
+			RT_TRACE(COMP_SCAN,
+				 "Scan BBInitialGainRestore 0xa0a is %x\n",
+				 priv->initgain_backup.cca);
 
 			rtl8192_phy_setTxPower(dev,
 					 priv->rtllib->current_network.channel);
@@ -1447,8 +1452,8 @@ static bool SetRFPowerState8190(struct net_device *dev,
 				} while (!rtstatus && (InitilizeCount > 0));
 
 				if (!rtstatus) {
-					RT_TRACE(COMP_ERR, "%s():Initialize Ada"
-						 "pter fail,return\n",
+					RT_TRACE(COMP_ERR,
+						 "%s():Initialize Adapter fail,return\n",
 						 __func__);
 					priv->SetRFPowerStateInProgress = false;
 					return false;
@@ -1492,19 +1497,16 @@ static bool SetRFPowerState8190(struct net_device *dev,
 					QueueID++;
 					continue;
 				} else {
-					RT_TRACE((COMP_POWER|COMP_RF), "eRf Off"
-						 "/Sleep: %d times TcbBusyQueue"
-						 "[%d] !=0 before doze!\n",
+					RT_TRACE((COMP_POWER|COMP_RF),
+						 "eRf Off/Sleep: %d times TcbBusyQueue[%d] !=0 before doze!\n",
 						 (i+1), QueueID);
 					udelay(10);
 					i++;
 				}
 
 				if (i >= MAX_DOZE_WAITING_TIMES_9x) {
-					RT_TRACE(COMP_POWER, "\n\n\n TimeOut!! "
-						 "SetRFPowerState8190(): eRfOff"
-						 ": %d times TcbBusyQueue[%d] "
-						 "!= 0 !!!\n",
+					RT_TRACE(COMP_POWER,
+						 "\n\n\n TimeOut!! SetRFPowerState8190(): eRfOff: %d times TcbBusyQueue[%d] != 0 !!!\n",
 						 MAX_DOZE_WAITING_TIMES_9x,
 						 QueueID);
 					break;
@@ -1514,8 +1516,8 @@ static bool SetRFPowerState8190(struct net_device *dev,
 			break;
 
 		case eRfOff:
-			RT_TRACE(COMP_PS, "SetRFPowerState8190() eRfOff/"
-				 "Sleep !\n");
+			RT_TRACE(COMP_PS,
+				 "SetRFPowerState8190() eRfOff/Sleep !\n");
 
 			for (QueueID = 0, i = 0; QueueID < MAX_TX_QUEUE; ) {
 				ring = &priv->tx_ring[QueueID];
@@ -1524,19 +1526,16 @@ static bool SetRFPowerState8190(struct net_device *dev,
 					QueueID++;
 					continue;
 				} else {
-					RT_TRACE(COMP_POWER, "eRf Off/Sleep: %d"
-						 " times TcbBusyQueue[%d] !=0 b"
-						 "efore doze!\n", (i+1),
-						 QueueID);
+					RT_TRACE(COMP_POWER,
+						 "eRf Off/Sleep: %d times TcbBusyQueue[%d] !=0 before doze!\n",
+						 (i+1), QueueID);
 					udelay(10);
 					i++;
 				}
 
 				if (i >= MAX_DOZE_WAITING_TIMES_9x) {
-					RT_TRACE(COMP_POWER, "\n\n\n SetZebra: "
-						 "RFPowerState8185B(): eRfOff:"
-						 " %d times TcbBusyQueue[%d] "
-						 "!= 0 !!!\n",
+					RT_TRACE(COMP_POWER,
+						 "\n\n\n SetZebra: RFPowerState8185B(): eRfOff: %d times TcbBusyQueue[%d] != 0 !!!\n",
 						 MAX_DOZE_WAITING_TIMES_9x,
 						 QueueID);
 					break;
@@ -1556,8 +1555,9 @@ static bool SetRFPowerState8190(struct net_device *dev,
 
 		default:
 			bResult = false;
-			RT_TRACE(COMP_ERR, "SetRFPowerState8190(): unknown state"
-				 " to set: 0x%X!!!\n", eRFPowerState);
+			RT_TRACE(COMP_ERR,
+				 "SetRFPowerState8190(): unknown state to set: 0x%X!!!\n",
+				 eRFPowerState);
 			break;
 		}
 
@@ -1576,8 +1576,8 @@ static bool SetRFPowerState8190(struct net_device *dev,
 			break;
 
 		default:
-			RT_TRACE(COMP_ERR, "SetRFPowerState8190(): Unknown "
-				 "RF type\n");
+			RT_TRACE(COMP_ERR,
+				 "SetRFPowerState8190(): Unknown RF type\n");
 			break;
 		}
 	}
@@ -1599,8 +1599,8 @@ bool SetRFPowerState(struct net_device *dev,
 		 eRFPowerState);
 	if (eRFPowerState == priv->rtllib->eRFPowerState &&
 	    priv->bHwRfOffAction == 0) {
-		RT_TRACE(COMP_PS, "<--------- SetRFPowerState(): discard the "
-			 "request for eRFPowerState(%d) is the same.\n",
+		RT_TRACE(COMP_PS,
+			 "<--------- SetRFPowerState(): discard the request for eRFPowerState(%d) is the same.\n",
 			 eRFPowerState);
 		return bResult;
 	}
diff --git a/drivers/staging/rtl8192e/rtl8192e/r819xE_phyreg.h b/drivers/staging/rtl8192e/rtl8192e/r819xE_phyreg.h
index 970298b..03eee3d 100644
--- a/drivers/staging/rtl8192e/rtl8192e/r819xE_phyreg.h
+++ b/drivers/staging/rtl8192e/rtl8192e/r819xE_phyreg.h
@@ -888,13 +888,6 @@
 #define bOFDMPHY0_End             0xcff
 #define bOFDMPHY1_End             0xdff
 
-/*#define max debug item in each debug page
-#define bMaxItem_FPGA_PHY0        0x9
-#define bMaxItem_FPGA_PHY1        0x3
-#define bMaxItem_PHY_11B          0x16
-#define bMaxItem_OFDM_PHY0        0x29
-#define bMaxItem_OFDM_PHY1        0x0 */
-
 #define bPMACControl              0x0
 #define bWMACControl              0x1
 #define bWNICControl              0x2
diff --git a/drivers/staging/rtl8192e/rtl8192e/rtl_cam.c b/drivers/staging/rtl8192e/rtl8192e/rtl_cam.c
index 89ea70b..41b025e 100644
--- a/drivers/staging/rtl8192e/rtl8192e/rtl_cam.c
+++ b/drivers/staging/rtl8192e/rtl8192e/rtl_cam.c
@@ -86,9 +86,9 @@ void set_swcam(struct net_device *dev, u8 EntryNo, u8 KeyIndex, u16 KeyType,
 	struct r8192_priv *priv = rtllib_priv(dev);
 	struct rtllib_device *ieee = priv->rtllib;
 
-	RT_TRACE(COMP_DBG, "===========>%s():EntryNo is %d,KeyIndex is "
-		 "%d,KeyType is %d,is_mesh is %d\n", __func__, EntryNo,
-		 KeyIndex, KeyType, is_mesh);
+	RT_TRACE(COMP_DBG,
+		 "===========>%s():EntryNo is %d,KeyIndex is %d,KeyType is %d,is_mesh is %d\n",
+		 __func__, EntryNo, KeyIndex, KeyType, is_mesh);
 	if (!is_mesh) {
 		ieee->swcamtable[EntryNo].bused = true;
 		ieee->swcamtable[EntryNo].key_index = KeyIndex;
@@ -115,21 +115,20 @@ void setKey(struct net_device *dev, u8 EntryNo, u8 KeyIndex, u16 KeyType,
 			if (priv->rtllib->RfOffReason > RF_CHANGE_BY_IPS) {
 				RT_TRACE(COMP_ERR, "%s(): RF is OFF.\n",
 					__func__);
-				return ;
-			} else {
-				down(&priv->rtllib->ips_sem);
-				IPSLeave(dev);
-				up(&priv->rtllib->ips_sem);
+				return;
 			}
+			down(&priv->rtllib->ips_sem);
+			IPSLeave(dev);
+			up(&priv->rtllib->ips_sem);
 		}
 	}
 	priv->rtllib->is_set_key = true;
 	if (EntryNo >= TOTAL_CAM_ENTRY)
 		RT_TRACE(COMP_ERR, "cam entry exceeds in setKey()\n");
 
-	RT_TRACE(COMP_SEC, "====>to setKey(), dev:%p, EntryNo:%d, KeyIndex:%d,"
-		 "KeyType:%d, MacAddr %pM\n", dev, EntryNo, KeyIndex,
-		 KeyType, MacAddr);
+	RT_TRACE(COMP_SEC,
+		 "====>to setKey(), dev:%p, EntryNo:%d, KeyIndex:%d,KeyType:%d, MacAddr %pM\n",
+		 dev, EntryNo, KeyIndex, KeyType, MacAddr);
 
 	if (DefaultKey)
 		usConfig |= BIT15 | (KeyType<<2);
@@ -192,7 +191,7 @@ void CamRestoreAllEntry(struct net_device *dev)
 		for (EntryId = 0; EntryId < 4; EntryId++) {
 			MacAddr = CAM_CONST_ADDR[EntryId];
 			if (priv->rtllib->swcamtable[EntryId].bused) {
-				setKey(dev, EntryId , EntryId,
+				setKey(dev, EntryId, EntryId,
 				       priv->rtllib->pairwise_key_type, MacAddr,
 				       0, (u32 *)(&priv->rtllib->swcamtable
 				      [EntryId].key_buf[0]));
@@ -244,8 +243,8 @@ void CamRestoreAllEntry(struct net_device *dev)
 				       (u32 *)(&priv->rtllib->swcamtable[0].key_buf[0])
 				     );
 			} else {
-				RT_TRACE(COMP_ERR, "===>%s():ERR!! ADHOC TKIP "
-					 ",but 0 entry is have no data\n",
+				RT_TRACE(COMP_ERR,
+					 "===>%s():ERR!! ADHOC TKIP ,but 0 entry is have no data\n",
 					 __func__);
 				return;
 			}
@@ -254,7 +253,7 @@ void CamRestoreAllEntry(struct net_device *dev)
 		MacAddr = CAM_CONST_BROAD;
 		for (EntryId = 1; EntryId < 4; EntryId++) {
 			if (priv->rtllib->swcamtable[EntryId].bused) {
-				setKey(dev, EntryId , EntryId,
+				setKey(dev, EntryId, EntryId,
 				       priv->rtllib->group_key_type,
 				       MacAddr, 0,
 				       (u32 *)(&priv->rtllib->swcamtable[EntryId].key_buf[0]));
@@ -263,13 +262,13 @@ void CamRestoreAllEntry(struct net_device *dev)
 
 		if (priv->rtllib->iw_mode == IW_MODE_ADHOC) {
 			if (priv->rtllib->swcamtable[0].bused) {
-				setKey(dev, 0 , 0,
+				setKey(dev, 0, 0,
 					priv->rtllib->group_key_type,
 					CAM_CONST_ADDR[0], 0,
 					(u32 *)(&priv->rtllib->swcamtable[0].key_buf[0]));
 			} else {
-				RT_TRACE(COMP_ERR, "===>%s():ERR!! ADHOC CCMP ,"
-					 "but 0 entry is have no data\n",
+				RT_TRACE(COMP_ERR,
+					 "===>%s():ERR!! ADHOC CCMP ,but 0 entry is have no data\n",
 					 __func__);
 				return;
 			}
diff --git a/drivers/staging/rtl8192e/rtl8192e/rtl_core.c b/drivers/staging/rtl8192e/rtl8192e/rtl_core.c
index 5615c80..352d381 100644
--- a/drivers/staging/rtl8192e/rtl8192e/rtl_core.c
+++ b/drivers/staging/rtl8192e/rtl8192e/rtl_core.c
@@ -131,7 +131,7 @@ static bool PlatformIOCheckPageLegalAndGetRegMask(u32 u4bPage, u8 *pu1bPageMask)
 
 void write_nic_io_byte(struct net_device *dev, int x, u8 y)
 {
-	u32 u4bPage = (x >> 8);
+	u32 u4bPage = x >> 8;
 	u8 u1PageMask = 0;
 	bool	bIsLegalPage = false;
 
@@ -154,7 +154,7 @@ void write_nic_io_byte(struct net_device *dev, int x, u8 y)
 
 void write_nic_io_word(struct net_device *dev, int x, u16 y)
 {
-	u32 u4bPage = (x >> 8);
+	u32 u4bPage = x >> 8;
 	u8 u1PageMask = 0;
 	bool	bIsLegalPage = false;
 
@@ -177,7 +177,7 @@ void write_nic_io_word(struct net_device *dev, int x, u16 y)
 
 void write_nic_io_dword(struct net_device *dev, int x, u32 y)
 {
-	u32 u4bPage = (x >> 8);
+	u32 u4bPage = x >> 8;
 	u8 u1PageMask = 0;
 	bool	bIsLegalPage = false;
 
@@ -199,24 +199,23 @@ void write_nic_io_dword(struct net_device *dev, int x, u32 y)
 
 u8 read_nic_io_byte(struct net_device *dev, int x)
 {
-	u32 u4bPage = (x >> 8);
+	u32 u4bPage = x >> 8;
 	u8 u1PageMask = 0;
 	bool	bIsLegalPage = false;
 	u8	Data = 0;
 
-	if (u4bPage == 0) {
+	if (u4bPage == 0)
 		return 0xff&inb(dev->base_addr + x);
-	} else {
-		bIsLegalPage = PlatformIOCheckPageLegalAndGetRegMask(u4bPage,
-							&u1PageMask);
-		if (bIsLegalPage) {
-			u8 u1bPsr = read_nic_io_byte(dev, PSR);
 
-			write_nic_io_byte(dev, PSR, ((u1bPsr & u1PageMask) |
-					  (u8)u4bPage));
-			Data = read_nic_io_byte(dev, (x & 0xff));
-			write_nic_io_byte(dev, PSR, (u1bPsr & u1PageMask));
-		}
+	bIsLegalPage = PlatformIOCheckPageLegalAndGetRegMask(u4bPage,
+							     &u1PageMask);
+	if (bIsLegalPage) {
+		u8 u1bPsr = read_nic_io_byte(dev, PSR);
+
+		write_nic_io_byte(dev, PSR, ((u1bPsr & u1PageMask) |
+				  (u8)u4bPage));
+		Data = read_nic_io_byte(dev, (x & 0xff));
+		write_nic_io_byte(dev, PSR, (u1bPsr & u1PageMask));
 	}
 
 	return Data;
@@ -224,25 +223,22 @@ u8 read_nic_io_byte(struct net_device *dev, int x)
 
 u16 read_nic_io_word(struct net_device *dev, int x)
 {
-	u32 u4bPage = (x >> 8);
+	u32 u4bPage = x >> 8;
 	u8 u1PageMask = 0;
 	bool	bIsLegalPage = false;
 	u16	Data = 0;
 
-	if (u4bPage == 0) {
+	if (u4bPage == 0)
 		return inw(dev->base_addr + x);
-	} else {
-		bIsLegalPage = PlatformIOCheckPageLegalAndGetRegMask(u4bPage,
-			       &u1PageMask);
-		if (bIsLegalPage) {
-			u8 u1bPsr = read_nic_io_byte(dev, PSR);
+	bIsLegalPage = PlatformIOCheckPageLegalAndGetRegMask(u4bPage,
+							     &u1PageMask);
+	if (bIsLegalPage) {
+		u8 u1bPsr = read_nic_io_byte(dev, PSR);
 
-			write_nic_io_byte(dev, PSR, ((u1bPsr & u1PageMask) |
-					  (u8)u4bPage));
-			Data = read_nic_io_word(dev, (x & 0xff));
-			write_nic_io_byte(dev, PSR, (u1bPsr & u1PageMask));
-
-		}
+		write_nic_io_byte(dev, PSR, ((u1bPsr & u1PageMask) |
+				  (u8)u4bPage));
+		Data = read_nic_io_word(dev, (x & 0xff));
+		write_nic_io_byte(dev, PSR, (u1bPsr & u1PageMask));
 	}
 
 	return Data;
@@ -250,25 +246,22 @@ u16 read_nic_io_word(struct net_device *dev, int x)
 
 u32 read_nic_io_dword(struct net_device *dev, int x)
 {
-	u32 u4bPage = (x >> 8);
+	u32 u4bPage = x >> 8;
 	u8 u1PageMask = 0;
 	bool	bIsLegalPage = false;
 	u32	Data = 0;
 
-	if (u4bPage == 0) {
+	if (u4bPage == 0)
 		return inl(dev->base_addr + x);
-	} else {
-		bIsLegalPage = PlatformIOCheckPageLegalAndGetRegMask(u4bPage,
-			       &u1PageMask);
-		if (bIsLegalPage) {
-			u8 u1bPsr = read_nic_io_byte(dev, PSR);
-
-			write_nic_io_byte(dev, PSR, ((u1bPsr & u1PageMask) |
-					  (u8)u4bPage));
-			Data = read_nic_io_dword(dev, (x & 0xff));
-			write_nic_io_byte(dev, PSR, (u1bPsr & u1PageMask));
+	bIsLegalPage = PlatformIOCheckPageLegalAndGetRegMask(u4bPage,
+		       &u1PageMask);
+	if (bIsLegalPage) {
+		u8 u1bPsr = read_nic_io_byte(dev, PSR);
 
-		}
+		write_nic_io_byte(dev, PSR, ((u1bPsr & u1PageMask) |
+				  (u8)u4bPage));
+		Data = read_nic_io_dword(dev, (x & 0xff));
+		write_nic_io_byte(dev, PSR, (u1bPsr & u1PageMask));
 	}
 
 	return Data;
@@ -326,8 +319,8 @@ bool MgntActSet_RF_State(struct net_device *dev,
 	u16			RFWaitCounter = 0;
 	unsigned long flag;
 
-	RT_TRACE((COMP_PS | COMP_RF), "===>MgntActSet_RF_State(): "
-		 "StateToSet(%d)\n", StateToSet);
+	RT_TRACE((COMP_PS | COMP_RF),
+		 "===>MgntActSet_RF_State(): StateToSet(%d)\n", StateToSet);
 
 	ProtectOrNot = false;
 
@@ -338,22 +331,19 @@ bool MgntActSet_RF_State(struct net_device *dev,
 			if (priv->RFChangeInProgress) {
 				spin_unlock_irqrestore(&priv->rf_ps_lock, flag);
 				RT_TRACE((COMP_PS | COMP_RF),
-					 "MgntActSet_RF_State(): RF Change in "
-					 "progress! Wait to set..StateToSet"
-					 "(%d).\n", StateToSet);
+					 "MgntActSet_RF_State(): RF Change in progress! Wait to set..StateToSet(%d).\n",
+					 StateToSet);
 
 				while (priv->RFChangeInProgress) {
 					RFWaitCounter++;
 					RT_TRACE((COMP_PS | COMP_RF),
-						 "MgntActSet_RF_State(): Wait 1"
-						 " ms (%d times)...\n",
+						 "MgntActSet_RF_State(): Wait 1 ms (%d times)...\n",
 						 RFWaitCounter);
 					mdelay(1);
 
 					if (RFWaitCounter > 100) {
-						RT_TRACE(COMP_ERR, "MgntActSet_"
-							 "RF_State(): Wait too "
-							 "logn to set RF\n");
+						RT_TRACE(COMP_ERR,
+							 "MgntActSet_RF_State(): Wait too logn to set RF\n");
 						return false;
 					}
 				}
@@ -383,9 +373,8 @@ bool MgntActSet_RF_State(struct net_device *dev,
 			    ChangeSource >= RF_CHANGE_BY_HW)
 				bConnectBySSID = true;
 		} else {
-			RT_TRACE((COMP_PS | COMP_RF), "MgntActSet_RF_State - "
-				 "eRfon reject pMgntInfo->RfOffReason= 0x%x,"
-				 " ChangeSource=0x%X\n",
+			RT_TRACE((COMP_PS | COMP_RF),
+				 "MgntActSet_RF_State - eRfon reject pMgntInfo->RfOffReason= 0x%x, ChangeSource=0x%X\n",
 				  priv->rtllib->RfOffReason, ChangeSource);
 	}
 
@@ -421,8 +410,8 @@ bool MgntActSet_RF_State(struct net_device *dev,
 	}
 
 	if (bActionAllowed) {
-		RT_TRACE((COMP_PS | COMP_RF), "MgntActSet_RF_State(): Action is"
-			 " allowed.... StateToSet(%d), RfOffReason(%#X)\n",
+		RT_TRACE((COMP_PS | COMP_RF),
+			 "MgntActSet_RF_State(): Action is allowed.... StateToSet(%d), RfOffReason(%#X)\n",
 			 StateToSet, priv->rtllib->RfOffReason);
 		PHY_SetRFPowerState(dev, StateToSet);
 		if (StateToSet == eRfOn) {
@@ -434,10 +423,9 @@ bool MgntActSet_RF_State(struct net_device *dev,
 			}
 		}
 	} else {
-		RT_TRACE((COMP_PS | COMP_RF), "MgntActSet_RF_State(): "
-			 "Action is rejected.... StateToSet(%d), ChangeSource"
-			 "(%#X), RfOffReason(%#X)\n", StateToSet, ChangeSource,
-			 priv->rtllib->RfOffReason);
+		RT_TRACE((COMP_PS | COMP_RF),
+			 "MgntActSet_RF_State(): Action is rejected.... StateToSet(%d), ChangeSource(%#X), RfOffReason(%#X)\n",
+			 StateToSet, ChangeSource, priv->rtllib->RfOffReason);
 	}
 
 	if (!ProtectOrNot) {
@@ -460,9 +448,9 @@ static short rtl8192_get_nic_desc_num(struct net_device *dev, int prio)
 	* between the tail and the head
 	*/
 	if ((prio == MGNT_QUEUE) && (skb_queue_len(&ring->queue) > 10))
-		RT_TRACE(COMP_DBG, "-----[%d]---------ring->idx=%d "
-			 "queue_len=%d---------\n", prio, ring->idx,
-			 skb_queue_len(&ring->queue));
+		RT_TRACE(COMP_DBG,
+			 "-----[%d]---------ring->idx=%d queue_len=%d---------\n",
+			 prio, ring->idx, skb_queue_len(&ring->queue));
 	return skb_queue_len(&ring->queue);
 }
 
@@ -481,7 +469,7 @@ void rtl8192_tx_timeout(struct net_device *dev)
 	struct r8192_priv *priv = rtllib_priv(dev);
 
 	schedule_work(&priv->reset_wq);
-	printk(KERN_INFO "TXTIMEOUT");
+	netdev_info(dev, "TXTIMEOUT");
 }
 
 void rtl8192_irq_enable(struct net_device *dev)
@@ -526,8 +514,9 @@ void rtl8192_update_cap(struct net_device *dev, u16 cap)
 		if (priv->dot11CurrentPreambleMode != PREAMBLE_SHORT) {
 			ShortPreamble = true;
 			priv->dot11CurrentPreambleMode = PREAMBLE_SHORT;
-			RT_TRACE(COMP_DBG, "%s(): WLAN_CAPABILITY_SHORT_"
-				 "PREAMBLE\n", __func__);
+			RT_TRACE(COMP_DBG,
+				 "%s(): WLAN_CAPABILITY_SHORT_PREAMBLE\n",
+				 __func__);
 			priv->rtllib->SetHwRegHandler(dev, HW_VAR_ACK_PREAMBLE,
 					(unsigned char *)&ShortPreamble);
 		}
@@ -535,8 +524,9 @@ void rtl8192_update_cap(struct net_device *dev, u16 cap)
 		if (priv->dot11CurrentPreambleMode != PREAMBLE_LONG) {
 			ShortPreamble = false;
 			priv->dot11CurrentPreambleMode = PREAMBLE_LONG;
-			RT_TRACE(COMP_DBG, "%s(): WLAN_CAPABILITY_LONG_"
-				 "PREAMBLE\n", __func__);
+			RT_TRACE(COMP_DBG,
+				 "%s(): WLAN_CAPABILITY_LONG_PREAMBLE\n",
+				 __func__);
 			priv->rtllib->SetHwRegHandler(dev, HW_VAR_ACK_PREAMBLE,
 					      (unsigned char *)&ShortPreamble);
 		}
@@ -597,8 +587,8 @@ static void rtl8192_qos_activate(void *data)
 	mutex_lock(&priv->mutex);
 	if (priv->rtllib->state != RTLLIB_LINKED)
 		goto success;
-	RT_TRACE(COMP_QOS, "qos active process with associate response "
-		 "received\n");
+	RT_TRACE(COMP_QOS,
+		 "qos active process with associate response received\n");
 
 	for (i = 0; i <  QOS_QUEUE_NUM; i++)
 		priv->rtllib->SetHwRegHandler(dev, HW_VAR_AC_PARAM, (u8 *)(&i));
@@ -618,7 +608,7 @@ static int rtl8192_qos_handle_probe_response(struct r8192_priv *priv,
 	if (priv->rtllib->state != RTLLIB_LINKED)
 		return ret;
 
-	if ((priv->rtllib->iw_mode != IW_MODE_INFRA))
+	if (priv->rtllib->iw_mode != IW_MODE_INFRA)
 		return ret;
 
 	if (network->flags & NETWORK_HAS_QOS_MASK) {
@@ -634,8 +624,8 @@ static int rtl8192_qos_handle_probe_response(struct r8192_priv *priv,
 				network->qos_data.param_count;
 	priv->rtllib->wmm_acm = network->qos_data.wmm_acm;
 			queue_work_rsl(priv->priv_wq, &priv->qos_activate);
-			RT_TRACE(COMP_QOS, "QoS parameters change call "
-					"qos_activate\n");
+			RT_TRACE(COMP_QOS,
+				 "QoS parameters change call qos_activate\n");
 		}
 	} else {
 		memcpy(&priv->rtllib->current_network.qos_data.parameters,
@@ -643,8 +633,8 @@ static int rtl8192_qos_handle_probe_response(struct r8192_priv *priv,
 
 		if ((network->qos_data.active == 1) && (active_network == 1)) {
 			queue_work_rsl(priv->priv_wq, &priv->qos_activate);
-			RT_TRACE(COMP_QOS, "QoS was disabled call qos_"
-				 "activate\n");
+			RT_TRACE(COMP_QOS,
+				 "QoS was disabled call qos_activate\n");
 		}
 		network->qos_data.active = 0;
 		network->qos_data.supported = 0;
@@ -679,7 +669,7 @@ static int rtl8192_qos_association_resp(struct r8192_priv *priv,
 	if (priv->rtllib->state != RTLLIB_LINKED)
 		return 0;
 
-	if ((priv->rtllib->iw_mode != IW_MODE_INFRA))
+	if (priv->rtllib->iw_mode != IW_MODE_INFRA)
 		return 0;
 
 	spin_lock_irqsave(&priv->rtllib->lock, flags);
@@ -751,8 +741,6 @@ static void rtl8192_prepare_beacon(struct r8192_priv *priv)
 	priv->ops->tx_fill_descriptor(dev, pdesc, tcb_desc, pnewskb);
 	__skb_queue_tail(&ring->queue, pnewskb);
 	pdesc->OWN = 1;
-
-	return;
 }
 
 static void rtl8192_stop_beacon(struct net_device *dev)
@@ -866,7 +854,6 @@ static void rtl8192_refresh_supportrate(struct r8192_priv *priv)
 	} else {
 		memset(ieee->Regdot11HTOperationalRateSet, 0, 16);
 	}
-	return;
 }
 
 static u8 rtl8192_getSupportedWireleeMode(struct net_device *dev)
@@ -909,8 +896,9 @@ void rtl8192_SetWirelessMode(struct net_device *dev, u8 wireless_mode)
 		} else if ((bSupportMode & WIRELESS_MODE_B)) {
 			wireless_mode = WIRELESS_MODE_B;
 		} else {
-			RT_TRACE(COMP_ERR, "%s(), No valid wireless mode "
-				 "supported (%x)!!!\n", __func__, bSupportMode);
+			RT_TRACE(COMP_ERR,
+				 "%s(), No valid wireless mode supported (%x)!!!\n",
+				 __func__, bSupportMode);
 			wireless_mode = WIRELESS_MODE_B;
 		}
 	}
@@ -1025,8 +1013,9 @@ static int rtl8192_sta_down(struct net_device *dev, bool shutdownrf)
 			spin_lock_irqsave(&priv->rf_ps_lock, flags);
 			break;
 		}
-		RT_TRACE(COMP_DBG, "===>%s():RF is in progress, need to wait "
-			 "until rf change is done.\n", __func__);
+		RT_TRACE(COMP_DBG,
+			 "===>%s():RF is in progress, need to wait until rf change is done.\n",
+			 __func__);
 		mdelay(1);
 		RFInProgressTimeOut++;
 		spin_lock_irqsave(&priv->rf_ps_lock, flags);
@@ -1212,8 +1201,8 @@ static void rtl8192_init_priv_variable(struct net_device *dev)
 	priv->AcmControl = 0;
 	priv->pFirmware = vzalloc(sizeof(struct rt_firmware));
 	if (!priv->pFirmware)
-		printk(KERN_ERR "rtl8192e: Unable to allocate space "
-		       "for firmware\n");
+		netdev_err(dev,
+			   "rtl8192e: Unable to allocate space for firmware\n");
 
 	skb_queue_head_init(&priv->rx_queue);
 	skb_queue_head_init(&priv->skb_queue);
@@ -1278,14 +1267,15 @@ static short rtl8192_get_channel_map(struct net_device *dev)
 
 	if ((priv->rf_chip != RF_8225) && (priv->rf_chip != RF_8256)
 			&& (priv->rf_chip != RF_6052)) {
-		RT_TRACE(COMP_ERR, "%s: unknown rf chip, can't set channel "
-			 "map\n", __func__);
+		RT_TRACE(COMP_ERR,
+			 "%s: unknown rf chip, can't set channel map\n",
+			 __func__);
 		return -1;
 	}
 
 	if (priv->ChannelPlan >= COUNTRY_CODE_MAX) {
-		printk(KERN_INFO "rtl819x_init:Error channel plan! Set to "
-		       "default.\n");
+		netdev_info(dev,
+			    "rtl819x_init:Error channel plan! Set to default.\n");
 		priv->ChannelPlan = COUNTRY_CODE_FCC;
 	}
 	RT_TRACE(COMP_INIT, "Channel plan is %d\n", priv->ChannelPlan);
@@ -1329,15 +1319,15 @@ static short rtl8192_init(struct net_device *dev)
 	rtl8192_irq_disable(dev);
 	if (request_irq(dev->irq, rtl8192_interrupt, IRQF_SHARED,
 	    dev->name, dev)) {
-		printk(KERN_ERR "Error allocating IRQ %d", dev->irq);
+		netdev_err(dev, "Error allocating IRQ %d", dev->irq);
 		return -1;
-	} else {
-		priv->irq = dev->irq;
-		RT_TRACE(COMP_INIT, "IRQ %d\n", dev->irq);
 	}
 
+	priv->irq = dev->irq;
+	RT_TRACE(COMP_INIT, "IRQ %d\n", dev->irq);
+
 	if (rtl8192_pci_initdescring(dev) != 0) {
-		printk(KERN_ERR "Endopoints initialization failed");
+		netdev_err(dev, "Endopoints initialization failed");
 		free_irq(dev->irq, dev);
 		return -1;
 	}
@@ -1357,7 +1347,7 @@ short rtl8192_is_tx_queue_empty(struct net_device *dev)
 		if ((i == TXCMD_QUEUE) || (i == HCCA_QUEUE))
 			continue;
 		if (skb_queue_len(&(&priv->tx_ring[i])->queue) > 0) {
-			printk(KERN_INFO "===>tx queue is not empty:%d, %d\n",
+			netdev_info(dev, "===>tx queue is not empty:%d, %d\n",
 			       i, skb_queue_len(&(&priv->tx_ring[i])->queue));
 			return 0;
 		}
@@ -1406,17 +1396,18 @@ static enum reset_type rtl819x_TxCheckStuck(struct net_device *dev)
 			tcb_desc->nStuckCount++;
 			bCheckFwTxCnt = true;
 			if (tcb_desc->nStuckCount > 1)
-				printk(KERN_INFO "%s: QueueID=%d tcb_desc->n"
-				       "StuckCount=%d\n", __func__, QueueID,
-				       tcb_desc->nStuckCount);
+				netdev_info(dev,
+					    "%s: QueueID=%d tcb_desc->nStuckCount=%d\n",
+					    __func__, QueueID,
+					    tcb_desc->nStuckCount);
 		}
 	}
 	spin_unlock_irqrestore(&priv->irq_th_lock, flags);
 
 	if (bCheckFwTxCnt) {
 		if (priv->ops->TxCheckStuckHandler(dev)) {
-			RT_TRACE(COMP_RESET, "TxCheckStuck(): Fw indicates no"
-				 " Tx condition!\n");
+			RT_TRACE(COMP_RESET,
+				 "TxCheckStuck(): Fw indicates no Tx condition!\n");
 			return RESET_TYPE_SILENT;
 		}
 	}
@@ -1455,13 +1446,13 @@ static enum reset_type rtl819x_ifcheck_resetornot(struct net_device *dev)
 
 	if (TxResetType == RESET_TYPE_NORMAL ||
 	    RxResetType == RESET_TYPE_NORMAL) {
-		printk(KERN_INFO "%s(): TxResetType is %d, RxResetType is %d\n",
-		       __func__, TxResetType, RxResetType);
+		netdev_info(dev, "%s(): TxResetType is %d, RxResetType is %d\n",
+			    __func__, TxResetType, RxResetType);
 		return RESET_TYPE_NORMAL;
 	} else if (TxResetType == RESET_TYPE_SILENT ||
 		   RxResetType == RESET_TYPE_SILENT) {
-		printk(KERN_INFO "%s(): TxResetType is %d, RxResetType is %d\n",
-		       __func__, TxResetType, RxResetType);
+		netdev_info(dev, "%s(): TxResetType is %d, RxResetType is %d\n",
+			    __func__, TxResetType, RxResetType);
 		return RESET_TYPE_SILENT;
 	} else {
 		return RESET_TYPE_NORESET;
@@ -1506,9 +1497,10 @@ RESET_START:
 		if (priv->rtllib->state == RTLLIB_LINKED)
 			LeisurePSLeave(dev);
 
-		if (IS_NIC_DOWN(priv)) {
-			RT_TRACE(COMP_ERR, "%s():the driver is not up! "
-				 "return\n", __func__);
+		if (priv->up) {
+			RT_TRACE(COMP_ERR,
+				 "%s():the driver is not up! return\n",
+				 __func__);
 			up(&priv->wx_sem);
 			return;
 		}
@@ -1517,8 +1509,9 @@ RESET_START:
 		RT_TRACE(COMP_RESET, "%s():======>start to down the driver\n",
 			  __func__);
 		mdelay(1000);
-		RT_TRACE(COMP_RESET, "%s():111111111111111111111111======>start"
-			 " to down the driver\n", __func__);
+		RT_TRACE(COMP_RESET,
+			 "%s():111111111111111111111111======>start to down the driver\n",
+			 __func__);
 
 		if (!netif_queue_stopped(dev))
 			netif_stop_queue(dev);
@@ -1531,7 +1524,7 @@ RESET_START:
 
 		if (ieee->state == RTLLIB_LINKED) {
 			SEM_DOWN_IEEE_WX(&ieee->wx_sem);
-			printk(KERN_INFO "ieee->state is RTLLIB_LINKED\n");
+			netdev_info(dev, "ieee->state is RTLLIB_LINKED\n");
 			rtllib_stop_send_beacons(priv->rtllib);
 			del_timer_sync(&ieee->associate_timer);
 			cancel_delayed_work(&ieee->associate_retry_wq);
@@ -1539,29 +1532,31 @@ RESET_START:
 			netif_carrier_off(dev);
 			SEM_UP_IEEE_WX(&ieee->wx_sem);
 		} else {
-			printk(KERN_INFO "ieee->state is NOT LINKED\n");
+			netdev_info(dev, "ieee->state is NOT LINKED\n");
 			rtllib_softmac_stop_protocol(priv->rtllib, 0 , true);
 		}
 
 		dm_backup_dynamic_mechanism_state(dev);
 
 		up(&priv->wx_sem);
-		RT_TRACE(COMP_RESET, "%s():<==========down process is "
-			 "finished\n", __func__);
+		RT_TRACE(COMP_RESET,
+			 "%s():<==========down process is finished\n",
+			 __func__);
 
 		RT_TRACE(COMP_RESET, "%s():<===========up process start\n",
 			 __func__);
 		reset_status = _rtl8192_up(dev, true);
 
-		RT_TRACE(COMP_RESET, "%s():<===========up process is "
-			 "finished\n", __func__);
+		RT_TRACE(COMP_RESET,
+			 "%s():<===========up process is finished\n", __func__);
 		if (reset_status == -1) {
 			if (reset_times < 3) {
 				reset_times++;
 				goto RESET_START;
 			} else {
-				RT_TRACE(COMP_ERR, " ERR!!! %s():  Reset "
-					 "Failed!!\n", __func__);
+				RT_TRACE(COMP_ERR,
+					 " ERR!!! %s():  Reset Failed!!\n",
+					 __func__);
 			}
 		}
 
@@ -1650,7 +1645,7 @@ void	rtl819x_watchdog_wqcallback(void *data)
 	bool	bHigherBusyRxTraffic = false;
 	bool bEnterPS = false;
 
-	if (IS_NIC_DOWN(priv) || priv->bHwRadioOff)
+	if (!priv->up || priv->bHwRadioOff)
 		return;
 
 	if (priv->rtllib->state >= RTLLIB_LINKED) {
@@ -1670,8 +1665,8 @@ void	rtl819x_watchdog_wqcallback(void *data)
 			if ((ieee->PowerSaveControl.ReturnPoint ==
 			     IPS_CALLBACK_NONE) &&
 			     (!ieee->bNetPromiscuousMode)) {
-				RT_TRACE(COMP_PS, "====================>haha: "
-					 "IPSEnter()\n");
+				RT_TRACE(COMP_PS,
+					 "====================>haha: IPSEnter()\n");
 				IPSEnter(dev);
 			}
 		}
@@ -1736,8 +1731,9 @@ void	rtl819x_watchdog_wqcallback(void *data)
 			if (ieee->eRFPowerState == eRfOff)
 				RT_TRACE(COMP_ERR, "========>%s()\n", __func__);
 
-			printk(KERN_INFO "===>%s(): AP is power off, chan:%d,"
-			       " connect another one\n", __func__, priv->chan);
+			netdev_info(dev,
+				    "===>%s(): AP is power off, chan:%d, connect another one\n",
+				    __func__, priv->chan);
 
 			ieee->state = RTLLIB_ASSOCIATING;
 
@@ -1793,7 +1789,7 @@ void watch_dog_timer_callback(unsigned long data)
 
 	queue_delayed_work_rsl(priv->priv_wq, &priv->watch_dog_wq, 0);
 	mod_timer(&priv->watch_dog_timer, jiffies +
-		  MSECS(RTLLIB_WATCH_DOG_TIME));
+		  msecs_to_jiffies(RTLLIB_WATCH_DOG_TIME));
 }
 
 /****************************************************************************
@@ -1882,7 +1878,7 @@ void rtl8192_hard_data_xmit(struct sk_buff *skb, struct net_device *dev,
 				    MAX_DEV_ADDR_SIZE);
 	u8 queue_index = tcb_desc->queue_index;
 
-	if ((priv->rtllib->eRFPowerState == eRfOff) || IS_NIC_DOWN(priv) ||
+	if ((priv->rtllib->eRFPowerState == eRfOff) || !priv->up ||
 	     priv->bResetInProgress) {
 		kfree_skb(skb);
 		return;
@@ -1902,8 +1898,6 @@ void rtl8192_hard_data_xmit(struct sk_buff *skb, struct net_device *dev,
 						 priv->rtllib->tx_headroom);
 		priv->rtllib->stats.tx_packets++;
 	}
-
-	return;
 }
 
 int rtl8192_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
@@ -1916,7 +1910,7 @@ int rtl8192_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
 
 	if (queue_index != TXCMD_QUEUE) {
 		if ((priv->rtllib->eRFPowerState == eRfOff) ||
-		     IS_NIC_DOWN(priv) || priv->bResetInProgress) {
+		     !priv->up || priv->bResetInProgress) {
 			kfree_skb(skb);
 			return 0;
 		}
@@ -1926,17 +1920,16 @@ int rtl8192_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
 	if (queue_index == TXCMD_QUEUE) {
 		rtl8192_tx_cmd(dev, skb);
 		return 0;
-	} else {
-		tcb_desc->RATRIndex = 7;
-		tcb_desc->bTxDisableRateFallBack = 1;
-		tcb_desc->bTxUseDriverAssingedRate = 1;
-		tcb_desc->bTxEnableFwCalcDur = 1;
-		skb_push(skb, priv->rtllib->tx_headroom);
-		ret = rtl8192_tx(dev, skb);
-		if (ret != 0)
-			kfree_skb(skb);
 	}
 
+	tcb_desc->RATRIndex = 7;
+	tcb_desc->bTxDisableRateFallBack = 1;
+	tcb_desc->bTxUseDriverAssingedRate = 1;
+	tcb_desc->bTxEnableFwCalcDur = 1;
+	skb_push(skb, priv->rtllib->tx_headroom);
+	ret = rtl8192_tx(dev, skb);
+	if (ret != 0)
+		kfree_skb(skb);
 	return ret;
 }
 
@@ -1987,8 +1980,6 @@ void rtl8192_tx_cmd(struct net_device *dev, struct sk_buff *skb)
 
 	__skb_queue_tail(&ring->queue, skb);
 	spin_unlock_irqrestore(&priv->irq_th_lock, flags);
-
-	return;
 }
 
 short rtl8192_tx(struct net_device *dev, struct sk_buff *skb)
@@ -2007,9 +1998,9 @@ short rtl8192_tx(struct net_device *dev, struct sk_buff *skb)
 	u32 fwinfo_size = 0;
 
 	if (priv->bdisable_nic) {
-		RT_TRACE(COMP_ERR, "%s: ERR!! Nic is disabled! Can't tx packet"
-			 " len=%d qidx=%d!!!\n", __func__, skb->len,
-			 tcb_desc->queue_index);
+		RT_TRACE(COMP_ERR,
+			 "%s: ERR!! Nic is disabled! Can't tx packet len=%d qidx=%d!!!\n",
+			 __func__, skb->len, tcb_desc->queue_index);
 		return skb->len;
 	}
 
@@ -2046,8 +2037,8 @@ short rtl8192_tx(struct net_device *dev, struct sk_buff *skb)
 
 	pdesc = &ring->desc[idx];
 	if ((pdesc->OWN == 1) && (tcb_desc->queue_index != BEACON_QUEUE)) {
-		RT_TRACE(COMP_ERR, "No more TX desc@%d, ring->idx = %d, idx = "
-			 "%d, skblen = 0x%x queuelen=%d",
+		RT_TRACE(COMP_ERR,
+			 "No more TX desc@%d, ring->idx = %d, idx = %d, skblen = 0x%x queuelen=%d",
 			 tcb_desc->queue_index, ring->idx, idx, skb->len,
 			 skb_queue_len(&ring->queue));
 		spin_unlock_irqrestore(&priv->irq_th_lock, flags);
@@ -2332,76 +2323,74 @@ static void rtl8192_rx_normal(struct net_device *dev)
 					[priv->rx_idx[rx_queue_idx]];
 		struct sk_buff *skb = priv->rx_buf[rx_queue_idx]
 				      [priv->rx_idx[rx_queue_idx]];
+		struct sk_buff *new_skb;
 
-		if (pdesc->OWN) {
+		if (pdesc->OWN)
 			return;
-		} else {
-			struct sk_buff *new_skb;
-
-			if (!priv->ops->rx_query_status_descriptor(dev, &stats,
-			pdesc, skb))
-				goto done;
-			new_skb = dev_alloc_skb(priv->rxbuffersize);
-			/* if allocation of new skb failed - drop current packet
-			* and reuse skb */
-			if (unlikely(!new_skb))
-				goto done;
-
-			pci_unmap_single(priv->pdev,
-					*((dma_addr_t *)skb->cb),
-					priv->rxbuffersize,
-					PCI_DMA_FROMDEVICE);
-
-			skb_put(skb, pdesc->Length);
-			skb_reserve(skb, stats.RxDrvInfoSize +
-				stats.RxBufShift);
-			skb_trim(skb, skb->len - 4/*sCrcLng*/);
-			rtllib_hdr = (struct rtllib_hdr_1addr *)skb->data;
-			if (!is_multicast_ether_addr(rtllib_hdr->addr1)) {
-				/* unicast packet */
-				unicast_packet = true;
-			}
-			fc = le16_to_cpu(rtllib_hdr->frame_ctl);
-			type = WLAN_FC_GET_TYPE(fc);
-			if (type == RTLLIB_FTYPE_MGMT)
-				bLedBlinking = false;
-
-			if (bLedBlinking)
-				if (priv->rtllib->LedControlHandler)
-					priv->rtllib->LedControlHandler(dev,
-								LED_CTL_RX);
-
-			if (stats.bCRC) {
-				if (type != RTLLIB_FTYPE_MGMT)
-					priv->stats.rxdatacrcerr++;
-				else
-					priv->stats.rxmgmtcrcerr++;
-			}
-
-			skb_len = skb->len;
+		if (!priv->ops->rx_query_status_descriptor(dev, &stats,
+		pdesc, skb))
+			goto done;
+		new_skb = dev_alloc_skb(priv->rxbuffersize);
+		/* if allocation of new skb failed - drop current packet
+		 * and reuse skb
+		 */
+		if (unlikely(!new_skb))
+			goto done;
+
+		pci_unmap_single(priv->pdev,
+				*((dma_addr_t *)skb->cb),
+				priv->rxbuffersize,
+				PCI_DMA_FROMDEVICE);
+
+		skb_put(skb, pdesc->Length);
+		skb_reserve(skb, stats.RxDrvInfoSize +
+			stats.RxBufShift);
+		skb_trim(skb, skb->len - 4/*sCrcLng*/);
+		rtllib_hdr = (struct rtllib_hdr_1addr *)skb->data;
+		if (!is_multicast_ether_addr(rtllib_hdr->addr1)) {
+			/* unicast packet */
+			unicast_packet = true;
+		}
+		fc = le16_to_cpu(rtllib_hdr->frame_ctl);
+		type = WLAN_FC_GET_TYPE(fc);
+		if (type == RTLLIB_FTYPE_MGMT)
+			bLedBlinking = false;
+
+		if (bLedBlinking)
+			if (priv->rtllib->LedControlHandler)
+				priv->rtllib->LedControlHandler(dev,
+							LED_CTL_RX);
+
+		if (stats.bCRC) {
+			if (type != RTLLIB_FTYPE_MGMT)
+				priv->stats.rxdatacrcerr++;
+			else
+				priv->stats.rxmgmtcrcerr++;
+		}
 
-			if (!rtllib_rx(priv->rtllib, skb, &stats)) {
-				dev_kfree_skb_any(skb);
-			} else {
-				priv->stats.rxok++;
-				if (unicast_packet)
-					priv->stats.rxbytesunicast += skb_len;
-			}
+		skb_len = skb->len;
 
-			skb = new_skb;
-			skb->dev = dev;
+		if (!rtllib_rx(priv->rtllib, skb, &stats)) {
+			dev_kfree_skb_any(skb);
+		} else {
+			priv->stats.rxok++;
+			if (unicast_packet)
+				priv->stats.rxbytesunicast += skb_len;
+		}
 
-			priv->rx_buf[rx_queue_idx][priv->rx_idx[rx_queue_idx]] =
-									 skb;
-			*((dma_addr_t *) skb->cb) = pci_map_single(priv->pdev,
-						    skb_tail_pointer_rsl(skb),
-						    priv->rxbuffersize,
-						    PCI_DMA_FROMDEVICE);
-			if (pci_dma_mapping_error(priv->pdev,
-						  *((dma_addr_t *)skb->cb))) {
-				dev_kfree_skb_any(skb);
-				return;
-			}
+		skb = new_skb;
+		skb->dev = dev;
+
+		priv->rx_buf[rx_queue_idx][priv->rx_idx[rx_queue_idx]] =
+								 skb;
+		*((dma_addr_t *) skb->cb) = pci_map_single(priv->pdev,
+					    skb_tail_pointer_rsl(skb),
+					    priv->rxbuffersize,
+					    PCI_DMA_FROMDEVICE);
+		if (pci_dma_mapping_error(priv->pdev,
+					  *((dma_addr_t *)skb->cb))) {
+			dev_kfree_skb_any(skb);
+			return;
 		}
 done:
 		pdesc->BufferAddress = *((dma_addr_t *)skb->cb);
@@ -2567,7 +2556,7 @@ static int r8192_set_mac_adr(struct net_device *dev, void *mac)
 
 	down(&priv->wx_sem);
 
-	memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN);
+	ether_addr_copy(dev->dev_addr, addr->sa_data);
 
 	schedule_work(&priv->reset_wq);
 	up(&priv->wx_sem);
@@ -2869,7 +2858,8 @@ static int rtl8192_pci_probe(struct pci_dev *pdev,
 
 	if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) {
 		if (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32))) {
-			printk(KERN_INFO "Unable to obtain 32bit DMA for consistent allocations\n");
+			dev_info(&pdev->dev,
+				 "Unable to obtain 32bit DMA for consistent allocations\n");
 			goto err_pci_disable;
 		}
 	}
@@ -2902,7 +2892,8 @@ static int rtl8192_pci_probe(struct pci_dev *pdev,
 		goto err_rel_rtllib;
 	}
 
-	printk(KERN_INFO "Memory mapped space start: 0x%08lx\n", pmem_start);
+	dev_info(&pdev->dev, "Memory mapped space start: 0x%08lx\n",
+		 pmem_start);
 	if (!request_mem_region(pmem_start, pmem_len, DRV_NAME)) {
 		RT_TRACE(COMP_ERR, "request_mem_region failed!");
 		goto err_rel_rtllib;
@@ -2940,8 +2931,8 @@ static int rtl8192_pci_probe(struct pci_dev *pdev,
 	dev->watchdog_timeo = HZ * 3;
 
 	if (dev_alloc_name(dev, ifname) < 0) {
-		RT_TRACE(COMP_INIT, "Oops: devname already taken! Trying "
-			 "wlan%%d...\n");
+		RT_TRACE(COMP_INIT,
+			 "Oops: devname already taken! Trying wlan%%d...\n");
 			dev_alloc_name(dev, ifname);
 	}
 
@@ -2981,7 +2972,7 @@ err_pci_disable:
 static void rtl8192_pci_disconnect(struct pci_dev *pdev)
 {
 	struct net_device *dev = pci_get_drvdata(pdev);
-	struct r8192_priv *priv ;
+	struct r8192_priv *priv;
 	u32 i;
 
 	if (dev) {
@@ -3004,7 +2995,7 @@ static void rtl8192_pci_disconnect(struct pci_dev *pdev)
 			rtl8192_free_tx_ring(dev, i);
 
 		if (priv->irq) {
-			printk(KERN_INFO "Freeing irq %d\n", dev->irq);
+			dev_info(&pdev->dev, "Freeing irq %d\n", dev->irq);
 			free_irq(dev->irq, dev);
 			priv->irq = 0;
 		}
@@ -3032,7 +3023,7 @@ bool NicIFEnableNIC(struct net_device *dev)
 	struct rt_pwr_save_ctrl *pPSC = (struct rt_pwr_save_ctrl *)
 					(&(priv->rtllib->PowerSaveControl));
 
-	if (IS_NIC_DOWN(priv)) {
+	if (!priv->up) {
 		RT_TRACE(COMP_ERR, "ERR!!! %s(): Driver is already down!\n",
 			 __func__);
 		priv->bdisable_nic = false;
@@ -3059,7 +3050,6 @@ bool NicIFEnableNIC(struct net_device *dev)
 }
 bool NicIFDisableNIC(struct net_device *dev)
 {
-	bool	status = true;
 	struct r8192_priv *priv = rtllib_priv(dev);
 	u8 tmp_state = 0;
 
@@ -3074,13 +3064,13 @@ bool NicIFDisableNIC(struct net_device *dev)
 	priv->ops->stop_adapter(dev, false);
 	RT_TRACE(COMP_PS, "<=========%s()\n", __func__);
 
-	return status;
+	return true;
 }
 
 static int __init rtl8192_pci_module_init(void)
 {
-	printk(KERN_INFO "\nLinux kernel driver for RTL8192E WLAN cards\n");
-	printk(KERN_INFO "Copyright (c) 2007-2008, Realsil Wlan Driver\n");
+	pr_info("\nLinux kernel driver for RTL8192E WLAN cards\n");
+	pr_info("Copyright (c) 2007-2008, Realsil Wlan Driver\n");
 
 	if (0 != pci_register_driver(&rtl8192_pci_driver)) {
 		DMESG("No device found");
@@ -3106,7 +3096,7 @@ void check_rfctrl_gpio_timer(unsigned long data)
 	queue_delayed_work_rsl(priv->priv_wq, &priv->gpio_change_rf_wq, 0);
 
 	mod_timer(&priv->gpio_polling_timer, jiffies +
-		  MSECS(RTLLIB_WATCH_DOG_TIME));
+		  msecs_to_jiffies(RTLLIB_WATCH_DOG_TIME));
 }
 
 /***************************************************************************
diff --git a/drivers/staging/rtl8192e/rtl8192e/rtl_core.h b/drivers/staging/rtl8192e/rtl8192e/rtl_core.h
index d1438c2..d365af6 100644
--- a/drivers/staging/rtl8192e/rtl8192e/rtl_core.h
+++ b/drivers/staging/rtl8192e/rtl8192e/rtl_core.h
@@ -98,14 +98,8 @@
 #define BIT(_i)				(1<<(_i))
 #endif
 
-#define IS_NIC_DOWN(priv)	(!(priv)->up)
-
 #define IS_ADAPTER_SENDS_BEACON(dev) 0
 
-#define IS_UNDER_11N_AES_MODE(_rtllib)		\
-	((_rtllib->pHTInfo->bCurrentHTSupport == true) && \
-	(_rtllib->pairwise_key_type == KEY_TYPE_CCMP))
-
 #define HAL_MEMORY_MAPPED_IO_RANGE_8190PCI	0x1000
 #define HAL_HW_PCI_REVISION_ID_8190PCI			0x00
 #define HAL_MEMORY_MAPPED_IO_RANGE_8192PCIE	0x4000
@@ -1004,14 +998,14 @@ short rtl8192_tx(struct net_device *dev, struct sk_buff *skb);
 
 u8 read_nic_io_byte(struct net_device *dev, int x);
 u32 read_nic_io_dword(struct net_device *dev, int x);
-u16 read_nic_io_word(struct net_device *dev, int x) ;
+u16 read_nic_io_word(struct net_device *dev, int x);
 void write_nic_io_byte(struct net_device *dev, int x, u8 y);
 void write_nic_io_word(struct net_device *dev, int x, u16 y);
 void write_nic_io_dword(struct net_device *dev, int x, u32 y);
 
 u8 read_nic_byte(struct net_device *dev, int x);
 u32 read_nic_dword(struct net_device *dev, int x);
-u16 read_nic_word(struct net_device *dev, int x) ;
+u16 read_nic_word(struct net_device *dev, int x);
 void write_nic_byte(struct net_device *dev, int x, u8 y);
 void write_nic_word(struct net_device *dev, int x, u16 y);
 void write_nic_dword(struct net_device *dev, int x, u32 y);
diff --git a/drivers/staging/rtl8192e/rtl8192e/rtl_dm.c b/drivers/staging/rtl8192e/rtl8192e/rtl_dm.c
index b8891c6..df4bbcf 100644
--- a/drivers/staging/rtl8192e/rtl8192e/rtl_dm.c
+++ b/drivers/staging/rtl8192e/rtl8192e/rtl_dm.c
@@ -267,7 +267,7 @@ static void dm_check_rate_adaptive(struct net_device *dev)
 	bool bshort_gi_enabled = false;
 	static u8 ping_rssi_state;
 
-	if (IS_NIC_DOWN(priv)) {
+	if (!priv->up) {
 		RT_TRACE(COMP_RATE, "<---- dm_check_rate_adaptive(): driver is going to unload\n");
 		return;
 	}
@@ -378,19 +378,16 @@ static void dm_bandwidth_autoswitch(struct net_device *dev)
 	struct r8192_priv *priv = rtllib_priv(dev);
 
 	if (priv->CurrentChannelBW == HT_CHANNEL_WIDTH_20 ||
-	   !priv->rtllib->bandwidth_auto_switch.bautoswitch_enable) {
+	   !priv->rtllib->bandwidth_auto_switch.bautoswitch_enable)
 		return;
+	if (priv->rtllib->bandwidth_auto_switch.bforced_tx20Mhz == false) {
+		if (priv->undecorated_smoothed_pwdb <=
+		    priv->rtllib->bandwidth_auto_switch.threshold_40Mhzto20Mhz)
+			priv->rtllib->bandwidth_auto_switch.bforced_tx20Mhz = true;
 	} else {
-		if (priv->rtllib->bandwidth_auto_switch.bforced_tx20Mhz == false) {
-			if (priv->undecorated_smoothed_pwdb <=
-			    priv->rtllib->bandwidth_auto_switch.threshold_40Mhzto20Mhz)
-				priv->rtllib->bandwidth_auto_switch.bforced_tx20Mhz = true;
-		} else {
-			if (priv->undecorated_smoothed_pwdb >=
-			    priv->rtllib->bandwidth_auto_switch.threshold_20Mhzto40Mhz)
-				priv->rtllib->bandwidth_auto_switch.bforced_tx20Mhz = false;
-
-		}
+		if (priv->undecorated_smoothed_pwdb >=
+		    priv->rtllib->bandwidth_auto_switch.threshold_20Mhzto40Mhz)
+			priv->rtllib->bandwidth_auto_switch.bforced_tx20Mhz = false;
 	}
 }
 
@@ -501,7 +498,7 @@ static void dm_TXPowerTrackingCallback_TSSI(struct net_device *dev)
 					write_nic_byte(dev, FW_Busy_Flag, 0);
 					return;
 				}
-				if ((priv->rtllib->eRFPowerState != eRfOn)) {
+				if (priv->rtllib->eRFPowerState != eRfOn) {
 					RT_TRACE(COMP_POWER_TRACKING,
 						 "we are in power save, so return\n");
 					write_nic_byte(dev, Pw_Track_Flag, 0);
@@ -581,148 +578,148 @@ static void dm_TXPowerTrackingCallback_TSSI(struct net_device *dev)
 					 "priv->CCKPresentAttentuation = %d\n",
 					 priv->CCKPresentAttentuation);
 				return;
-			} else {
-				if (Avg_TSSI_Meas_from_driver < TSSI_13dBm - E_FOR_TX_POWER_TRACK) {
-					if (RF_Type == RF_2T4R) {
-
-						if ((priv->rfa_txpowertrackingindex > 0) &&
-						    (priv->rfc_txpowertrackingindex > 0)) {
-							priv->rfa_txpowertrackingindex--;
-							if (priv->rfa_txpowertrackingindex_real > 4) {
-								priv->rfa_txpowertrackingindex_real--;
-								rtl8192_setBBreg(dev,
-									 rOFDM0_XATxIQImbalance,
-									 bMaskDWord,
-									 priv->txbbgain_table[priv->rfa_txpowertrackingindex_real].txbbgain_value);
-							}
-
-							priv->rfc_txpowertrackingindex--;
-							if (priv->rfc_txpowertrackingindex_real > 4) {
-								priv->rfc_txpowertrackingindex_real--;
-								rtl8192_setBBreg(dev,
-									 rOFDM0_XCTxIQImbalance,
-									 bMaskDWord,
-									 priv->txbbgain_table[priv->rfc_txpowertrackingindex_real].txbbgain_value);
-							}
-						} else {
-							rtl8192_setBBreg(dev, rOFDM0_XATxIQImbalance,
-									 bMaskDWord,
-									 priv->txbbgain_table[4].txbbgain_value);
-							rtl8192_setBBreg(dev,
-									 rOFDM0_XCTxIQImbalance,
-									 bMaskDWord, priv->txbbgain_table[4].txbbgain_value);
-						}
-					} else {
-						if (priv->rfa_txpowertrackingindex > 0) {
-							priv->rfa_txpowertrackingindex--;
-							if (priv->rfa_txpowertrackingindex_real > 4) {
-								priv->rfa_txpowertrackingindex_real--;
-								rtl8192_setBBreg(dev,
-										 rOFDM0_XATxIQImbalance,
-										 bMaskDWord,
-										 priv->txbbgain_table[priv->rfa_txpowertrackingindex_real].txbbgain_value);
-							}
-						} else
-							rtl8192_setBBreg(dev, rOFDM0_XATxIQImbalance,
-									 bMaskDWord, priv->txbbgain_table[4].txbbgain_value);
+			}
+			if (Avg_TSSI_Meas_from_driver < TSSI_13dBm - E_FOR_TX_POWER_TRACK) {
+				if (RF_Type == RF_2T4R) {
 
-					}
-				} else {
-					if (RF_Type == RF_2T4R) {
-						if ((priv->rfa_txpowertrackingindex <
-						    TxBBGainTableLength - 1) &&
-						    (priv->rfc_txpowertrackingindex <
-						    TxBBGainTableLength - 1)) {
-							priv->rfa_txpowertrackingindex++;
-							priv->rfa_txpowertrackingindex_real++;
+					if ((priv->rfa_txpowertrackingindex > 0) &&
+					    (priv->rfc_txpowertrackingindex > 0)) {
+						priv->rfa_txpowertrackingindex--;
+						if (priv->rfa_txpowertrackingindex_real > 4) {
+							priv->rfa_txpowertrackingindex_real--;
 							rtl8192_setBBreg(dev,
 								 rOFDM0_XATxIQImbalance,
 								 bMaskDWord,
-								 priv->txbbgain_table
-								 [priv->rfa_txpowertrackingindex_real].txbbgain_value);
-							priv->rfc_txpowertrackingindex++;
-							priv->rfc_txpowertrackingindex_real++;
+								 priv->txbbgain_table[priv->rfa_txpowertrackingindex_real].txbbgain_value);
+						}
+
+						priv->rfc_txpowertrackingindex--;
+						if (priv->rfc_txpowertrackingindex_real > 4) {
+							priv->rfc_txpowertrackingindex_real--;
 							rtl8192_setBBreg(dev,
 								 rOFDM0_XCTxIQImbalance,
 								 bMaskDWord,
 								 priv->txbbgain_table[priv->rfc_txpowertrackingindex_real].txbbgain_value);
-						} else {
-							rtl8192_setBBreg(dev,
-								 rOFDM0_XATxIQImbalance,
-								 bMaskDWord,
-								 priv->txbbgain_table[TxBBGainTableLength - 1].txbbgain_value);
-							rtl8192_setBBreg(dev,
-								 rOFDM0_XCTxIQImbalance,
-								 bMaskDWord, priv->txbbgain_table[TxBBGainTableLength - 1].txbbgain_value);
 						}
 					} else {
-						if (priv->rfa_txpowertrackingindex < (TxBBGainTableLength - 1)) {
-							priv->rfa_txpowertrackingindex++;
-							priv->rfa_txpowertrackingindex_real++;
-							rtl8192_setBBreg(dev, rOFDM0_XATxIQImbalance,
+						rtl8192_setBBreg(dev, rOFDM0_XATxIQImbalance,
+								 bMaskDWord,
+								 priv->txbbgain_table[4].txbbgain_value);
+						rtl8192_setBBreg(dev,
+								 rOFDM0_XCTxIQImbalance,
+								 bMaskDWord, priv->txbbgain_table[4].txbbgain_value);
+					}
+				} else {
+					if (priv->rfa_txpowertrackingindex > 0) {
+						priv->rfa_txpowertrackingindex--;
+						if (priv->rfa_txpowertrackingindex_real > 4) {
+							priv->rfa_txpowertrackingindex_real--;
+							rtl8192_setBBreg(dev,
+									 rOFDM0_XATxIQImbalance,
 									 bMaskDWord,
 									 priv->txbbgain_table[priv->rfa_txpowertrackingindex_real].txbbgain_value);
-						} else
-							rtl8192_setBBreg(dev, rOFDM0_XATxIQImbalance,
-									 bMaskDWord,
-									 priv->txbbgain_table[TxBBGainTableLength - 1].txbbgain_value);
-					}
+						}
+					} else
+						rtl8192_setBBreg(dev, rOFDM0_XATxIQImbalance,
+								 bMaskDWord, priv->txbbgain_table[4].txbbgain_value);
+
 				}
+			} else {
 				if (RF_Type == RF_2T4R) {
-					priv->CCKPresentAttentuation_difference
-						= priv->rfa_txpowertrackingindex - priv->rfa_txpowertracking_default;
+					if ((priv->rfa_txpowertrackingindex <
+					    TxBBGainTableLength - 1) &&
+					    (priv->rfc_txpowertrackingindex <
+					    TxBBGainTableLength - 1)) {
+						priv->rfa_txpowertrackingindex++;
+						priv->rfa_txpowertrackingindex_real++;
+						rtl8192_setBBreg(dev,
+							 rOFDM0_XATxIQImbalance,
+							 bMaskDWord,
+							 priv->txbbgain_table
+							 [priv->rfa_txpowertrackingindex_real].txbbgain_value);
+						priv->rfc_txpowertrackingindex++;
+						priv->rfc_txpowertrackingindex_real++;
+						rtl8192_setBBreg(dev,
+							 rOFDM0_XCTxIQImbalance,
+							 bMaskDWord,
+							 priv->txbbgain_table[priv->rfc_txpowertrackingindex_real].txbbgain_value);
+					} else {
+						rtl8192_setBBreg(dev,
+							 rOFDM0_XATxIQImbalance,
+							 bMaskDWord,
+							 priv->txbbgain_table[TxBBGainTableLength - 1].txbbgain_value);
+						rtl8192_setBBreg(dev,
+							 rOFDM0_XCTxIQImbalance,
+							 bMaskDWord, priv->txbbgain_table[TxBBGainTableLength - 1].txbbgain_value);
+					}
 				} else {
-					priv->CCKPresentAttentuation_difference
-						= priv->rfa_txpowertrackingindex_real - priv->rfa_txpowertracking_default;
-				}
-
-				if (priv->CurrentChannelBW == HT_CHANNEL_WIDTH_20)
-					priv->CCKPresentAttentuation =
-						 priv->CCKPresentAttentuation_20Mdefault +
-						 priv->CCKPresentAttentuation_difference;
-				else
-					priv->CCKPresentAttentuation =
-						 priv->CCKPresentAttentuation_40Mdefault +
-						 priv->CCKPresentAttentuation_difference;
-
-				if (priv->CCKPresentAttentuation > (CCKTxBBGainTableLength-1))
-					priv->CCKPresentAttentuation = CCKTxBBGainTableLength-1;
-				if (priv->CCKPresentAttentuation < 0)
-					priv->CCKPresentAttentuation = 0;
-
-				if (priv->CCKPresentAttentuation > -1 &&
-				    priv->CCKPresentAttentuation < CCKTxBBGainTableLength) {
-					if (priv->rtllib->current_network.channel == 14 &&
-					    !priv->bcck_in_ch14) {
-						priv->bcck_in_ch14 = true;
-						dm_cck_txpower_adjust(dev, priv->bcck_in_ch14);
-					} else if (priv->rtllib->current_network.channel != 14 && priv->bcck_in_ch14) {
-						priv->bcck_in_ch14 = false;
-						dm_cck_txpower_adjust(dev, priv->bcck_in_ch14);
+					if (priv->rfa_txpowertrackingindex < (TxBBGainTableLength - 1)) {
+						priv->rfa_txpowertrackingindex++;
+						priv->rfa_txpowertrackingindex_real++;
+						rtl8192_setBBreg(dev, rOFDM0_XATxIQImbalance,
+								 bMaskDWord,
+								 priv->txbbgain_table[priv->rfa_txpowertrackingindex_real].txbbgain_value);
 					} else
-						dm_cck_txpower_adjust(dev, priv->bcck_in_ch14);
+						rtl8192_setBBreg(dev, rOFDM0_XATxIQImbalance,
+								 bMaskDWord,
+								 priv->txbbgain_table[TxBBGainTableLength - 1].txbbgain_value);
 				}
-				RT_TRACE(COMP_POWER_TRACKING,
-					 "priv->rfa_txpowertrackingindex = %d\n",
-					 priv->rfa_txpowertrackingindex);
-				RT_TRACE(COMP_POWER_TRACKING,
-					 "priv->rfa_txpowertrackingindex_real = %d\n",
-					 priv->rfa_txpowertrackingindex_real);
-				RT_TRACE(COMP_POWER_TRACKING,
-					 "priv->CCKPresentAttentuation_difference = %d\n",
-					 priv->CCKPresentAttentuation_difference);
-				RT_TRACE(COMP_POWER_TRACKING,
-					 "priv->CCKPresentAttentuation = %d\n",
-					 priv->CCKPresentAttentuation);
+			}
+			if (RF_Type == RF_2T4R) {
+				priv->CCKPresentAttentuation_difference
+					= priv->rfa_txpowertrackingindex - priv->rfa_txpowertracking_default;
+			} else {
+				priv->CCKPresentAttentuation_difference
+					= priv->rfa_txpowertrackingindex_real - priv->rfa_txpowertracking_default;
+			}
 
-				if (priv->CCKPresentAttentuation_difference <= -12 || priv->CCKPresentAttentuation_difference >= 24) {
-					priv->rtllib->bdynamic_txpower_enable = true;
-					write_nic_byte(dev, Pw_Track_Flag, 0);
-					write_nic_byte(dev, FW_Busy_Flag, 0);
-					RT_TRACE(COMP_POWER_TRACKING, "tx power track--->limited\n");
-					return;
-				}
+			if (priv->CurrentChannelBW == HT_CHANNEL_WIDTH_20)
+				priv->CCKPresentAttentuation =
+					 priv->CCKPresentAttentuation_20Mdefault +
+					 priv->CCKPresentAttentuation_difference;
+			else
+				priv->CCKPresentAttentuation =
+					 priv->CCKPresentAttentuation_40Mdefault +
+					 priv->CCKPresentAttentuation_difference;
+
+			if (priv->CCKPresentAttentuation > (CCKTxBBGainTableLength-1))
+				priv->CCKPresentAttentuation = CCKTxBBGainTableLength-1;
+			if (priv->CCKPresentAttentuation < 0)
+				priv->CCKPresentAttentuation = 0;
+
+			if (priv->CCKPresentAttentuation > -1 &&
+			    priv->CCKPresentAttentuation < CCKTxBBGainTableLength) {
+				if (priv->rtllib->current_network.channel == 14 &&
+				    !priv->bcck_in_ch14) {
+					priv->bcck_in_ch14 = true;
+					dm_cck_txpower_adjust(dev, priv->bcck_in_ch14);
+				} else if (priv->rtllib->current_network.channel != 14 && priv->bcck_in_ch14) {
+					priv->bcck_in_ch14 = false;
+					dm_cck_txpower_adjust(dev, priv->bcck_in_ch14);
+				} else
+					dm_cck_txpower_adjust(dev, priv->bcck_in_ch14);
+			}
+			RT_TRACE(COMP_POWER_TRACKING,
+				 "priv->rfa_txpowertrackingindex = %d\n",
+				 priv->rfa_txpowertrackingindex);
+			RT_TRACE(COMP_POWER_TRACKING,
+				 "priv->rfa_txpowertrackingindex_real = %d\n",
+				 priv->rfa_txpowertrackingindex_real);
+			RT_TRACE(COMP_POWER_TRACKING,
+				 "priv->CCKPresentAttentuation_difference = %d\n",
+				 priv->CCKPresentAttentuation_difference);
+			RT_TRACE(COMP_POWER_TRACKING,
+				 "priv->CCKPresentAttentuation = %d\n",
+				 priv->CCKPresentAttentuation);
+
+			if (priv->CCKPresentAttentuation_difference <= -12 || priv->CCKPresentAttentuation_difference >= 24) {
+				priv->rtllib->bdynamic_txpower_enable = true;
+				write_nic_byte(dev, Pw_Track_Flag, 0);
+				write_nic_byte(dev, FW_Busy_Flag, 0);
+				RT_TRACE(COMP_POWER_TRACKING, "tx power track--->limited\n");
+				return;
 			}
+
 			write_nic_byte(dev, Pw_Track_Flag, 0);
 			Avg_TSSI_Meas_from_driver = 0;
 			for (k = 0; k < 5; k++)
@@ -757,8 +754,8 @@ static void dm_TXPowerTrackingCallback_ThermalMeter(struct net_device *dev)
 		for (i = 0; i < CCK_Table_length; i++) {
 			if (TempCCk == (u32)CCKSwingTable_Ch1_Ch13[i][0]) {
 				priv->CCK_index = (u8) i;
-				RT_TRACE(COMP_POWER_TRACKING, "Initial reg0x%x"
-					 " = 0x%x, CCK_index = 0x%x\n",
+				RT_TRACE(COMP_POWER_TRACKING,
+					 "Initial reg0x%x = 0x%x, CCK_index = 0x%x\n",
 					 rCCK0_TxFilter1, TempCCk,
 					 priv->CCK_index);
 				break;
@@ -803,8 +800,8 @@ static void dm_TXPowerTrackingCallback_ThermalMeter(struct net_device *dev)
 
 	priv->Record_CCK_20Mindex = tmpCCK20Mindex;
 	priv->Record_CCK_40Mindex = tmpCCK40Mindex;
-	RT_TRACE(COMP_POWER_TRACKING, "Record_CCK_20Mindex / Record_CCK_40"
-		 "Mindex = %d / %d.\n",
+	RT_TRACE(COMP_POWER_TRACKING,
+		 "Record_CCK_20Mindex / Record_CCK_40Mindex = %d / %d.\n",
 		 priv->Record_CCK_20Mindex, priv->Record_CCK_40Mindex);
 
 	if (priv->rtllib->current_network.channel == 14 &&
@@ -1401,13 +1398,12 @@ static void dm_CheckTXPowerTracking_ThermalMeter(struct net_device *dev)
 		TxPowerCheckCnt = 5;
 	else
 		TxPowerCheckCnt = 2;
-	if (!priv->btxpower_tracking) {
+	if (!priv->btxpower_tracking)
+		return;
+
+	if (priv->txpower_count  <= TxPowerCheckCnt) {
+		priv->txpower_count++;
 		return;
-	} else {
-		if (priv->txpower_count  <= TxPowerCheckCnt) {
-			priv->txpower_count++;
-			return;
-		}
 	}
 
 	if (!TM_Trigger) {
@@ -1419,14 +1415,12 @@ static void dm_CheckTXPowerTracking_ThermalMeter(struct net_device *dev)
 		}
 		TM_Trigger = 1;
 		return;
-	} else {
-	    printk(KERN_INFO "===============>Schedule TxPowerTrackingWorkItem\n");
-
-		queue_delayed_work_rsl(priv->priv_wq, &priv->txpower_tracking_wq, 0);
-		TM_Trigger = 0;
-		}
-
 	}
+	netdev_info(dev, "===============>Schedule TxPowerTrackingWorkItem\n");
+	queue_delayed_work_rsl(priv->priv_wq, &priv->txpower_tracking_wq, 0);
+	TM_Trigger = 0;
+
+}
 
 static void dm_check_txpower_tracking(struct net_device *dev)
 {
@@ -1446,7 +1440,7 @@ static void dm_CCKTxPowerAdjust_TSSI(struct net_device *dev, bool  bInCH14)
 	TempVal = 0;
 	if (!bInCH14) {
 		TempVal = (u32)(priv->cck_txbbgain_table[(u8)(priv->CCKPresentAttentuation)].ccktxbb_valuearray[0] +
-			  (priv->cck_txbbgain_table[(u8)(priv->CCKPresentAttentuation)].ccktxbb_valuearray[1]<<8)) ;
+			  (priv->cck_txbbgain_table[(u8)(priv->CCKPresentAttentuation)].ccktxbb_valuearray[1]<<8));
 
 		rtl8192_setBBreg(dev, rCCK0_TxFilter1, bMaskHWord, TempVal);
 		TempVal = (u32)(priv->cck_txbbgain_table[(u8)(priv->CCKPresentAttentuation)].ccktxbb_valuearray[2] +
@@ -1455,12 +1449,12 @@ static void dm_CCKTxPowerAdjust_TSSI(struct net_device *dev, bool  bInCH14)
 			  (priv->cck_txbbgain_table[(u8)(priv->CCKPresentAttentuation)].ccktxbb_valuearray[5]<<24));
 		rtl8192_setBBreg(dev, rCCK0_TxFilter2, bMaskDWord, TempVal);
 		TempVal = (u32)(priv->cck_txbbgain_table[(u8)(priv->CCKPresentAttentuation)].ccktxbb_valuearray[6] +
-			  (priv->cck_txbbgain_table[(u8)(priv->CCKPresentAttentuation)].ccktxbb_valuearray[7]<<8)) ;
+			  (priv->cck_txbbgain_table[(u8)(priv->CCKPresentAttentuation)].ccktxbb_valuearray[7]<<8));
 
 		rtl8192_setBBreg(dev, rCCK0_DebugPort, bMaskLWord, TempVal);
 	} else {
 		TempVal = (u32)(priv->cck_txbbgain_ch14_table[(u8)(priv->CCKPresentAttentuation)].ccktxbb_valuearray[0] +
-			  (priv->cck_txbbgain_ch14_table[(u8)(priv->CCKPresentAttentuation)].ccktxbb_valuearray[1]<<8)) ;
+			  (priv->cck_txbbgain_ch14_table[(u8)(priv->CCKPresentAttentuation)].ccktxbb_valuearray[1]<<8));
 
 		rtl8192_setBBreg(dev, rCCK0_TxFilter1, bMaskHWord, TempVal);
 		TempVal = (u32)(priv->cck_txbbgain_ch14_table[(u8)(priv->CCKPresentAttentuation)].ccktxbb_valuearray[2] +
@@ -1469,7 +1463,7 @@ static void dm_CCKTxPowerAdjust_TSSI(struct net_device *dev, bool  bInCH14)
 			  (priv->cck_txbbgain_ch14_table[(u8)(priv->CCKPresentAttentuation)].ccktxbb_valuearray[5]<<24));
 		rtl8192_setBBreg(dev, rCCK0_TxFilter2, bMaskDWord, TempVal);
 		TempVal = (u32)(priv->cck_txbbgain_ch14_table[(u8)(priv->CCKPresentAttentuation)].ccktxbb_valuearray[6] +
-			  (priv->cck_txbbgain_ch14_table[(u8)(priv->CCKPresentAttentuation)].ccktxbb_valuearray[7]<<8)) ;
+			  (priv->cck_txbbgain_ch14_table[(u8)(priv->CCKPresentAttentuation)].ccktxbb_valuearray[7]<<8));
 
 		rtl8192_setBBreg(dev, rCCK0_DebugPort, bMaskLWord, TempVal);
 	}
@@ -1485,7 +1479,7 @@ static void dm_CCKTxPowerAdjust_ThermalMeter(struct net_device *dev,	bool  bInCH
 	TempVal = 0;
 	if (!bInCH14) {
 		TempVal =	CCKSwingTable_Ch1_Ch13[priv->CCK_index][0] +
-					(CCKSwingTable_Ch1_Ch13[priv->CCK_index][1]<<8) ;
+					(CCKSwingTable_Ch1_Ch13[priv->CCK_index][1]<<8);
 		rtl8192_setBBreg(dev, rCCK0_TxFilter1, bMaskHWord, TempVal);
 		RT_TRACE(COMP_POWER_TRACKING, "CCK not chnl 14, reg 0x%x = 0x%x\n",
 			rCCK0_TxFilter1, TempVal);
@@ -1497,14 +1491,14 @@ static void dm_CCKTxPowerAdjust_ThermalMeter(struct net_device *dev,	bool  bInCH
 		RT_TRACE(COMP_POWER_TRACKING, "CCK not chnl 14, reg 0x%x = 0x%x\n",
 			rCCK0_TxFilter2, TempVal);
 		TempVal =	CCKSwingTable_Ch1_Ch13[priv->CCK_index][6] +
-					(CCKSwingTable_Ch1_Ch13[priv->CCK_index][7]<<8) ;
+					(CCKSwingTable_Ch1_Ch13[priv->CCK_index][7]<<8);
 
 		rtl8192_setBBreg(dev, rCCK0_DebugPort, bMaskLWord, TempVal);
 		RT_TRACE(COMP_POWER_TRACKING, "CCK not chnl 14, reg 0x%x = 0x%x\n",
 			rCCK0_DebugPort, TempVal);
 	} else {
 		TempVal =	CCKSwingTable_Ch14[priv->CCK_index][0] +
-					(CCKSwingTable_Ch14[priv->CCK_index][1]<<8) ;
+					(CCKSwingTable_Ch14[priv->CCK_index][1]<<8);
 
 		rtl8192_setBBreg(dev, rCCK0_TxFilter1, bMaskHWord, TempVal);
 		RT_TRACE(COMP_POWER_TRACKING, "CCK chnl 14, reg 0x%x = 0x%x\n",
@@ -1517,7 +1511,7 @@ static void dm_CCKTxPowerAdjust_ThermalMeter(struct net_device *dev,	bool  bInCH
 		RT_TRACE(COMP_POWER_TRACKING, "CCK chnl 14, reg 0x%x = 0x%x\n",
 			rCCK0_TxFilter2, TempVal);
 		TempVal =	CCKSwingTable_Ch14[priv->CCK_index][6] +
-					(CCKSwingTable_Ch14[priv->CCK_index][7]<<8) ;
+					(CCKSwingTable_Ch14[priv->CCK_index][7]<<8);
 
 		rtl8192_setBBreg(dev, rCCK0_DebugPort, bMaskLWord, TempVal);
 		RT_TRACE(COMP_POWER_TRACKING, "CCK chnl 14, reg 0x%x = 0x%x\n",
@@ -1569,7 +1563,7 @@ void dm_restore_dynamic_mechanism_state(struct net_device *dev)
 	u32	reg_ratr = priv->rate_adaptive.last_ratr;
 	u32 ratr_value;
 
-	if (IS_NIC_DOWN(priv)) {
+	if (!priv->up) {
 		RT_TRACE(COMP_RATE, "<---- dm_restore_dynamic_mechanism_state(): driver is going to unload\n");
 		return;
 	}
@@ -1830,12 +1824,11 @@ static void dm_ctrl_initgain_byrssi_by_fwfalse_alarm(
 	if ((priv->undecorated_smoothed_pwdb > dm_digtable.rssi_low_thresh) &&
 		(priv->undecorated_smoothed_pwdb < dm_digtable.rssi_high_thresh))
 		return;
-	if ((priv->undecorated_smoothed_pwdb <= dm_digtable.rssi_low_thresh)) {
+	if (priv->undecorated_smoothed_pwdb <= dm_digtable.rssi_low_thresh) {
 		if (dm_digtable.dig_state == DM_STA_DIG_OFF &&
 			(priv->reset_count == reset_cnt))
 			return;
-		else
-			reset_cnt = priv->reset_count;
+		reset_cnt = priv->reset_count;
 
 		dm_digtable.dig_highpwr_state = DM_STA_DIG_MAX;
 		dm_digtable.dig_state = DM_STA_DIG_OFF;
@@ -1857,19 +1850,18 @@ static void dm_ctrl_initgain_byrssi_by_fwfalse_alarm(
 		return;
 	}
 
-	if ((priv->undecorated_smoothed_pwdb >= dm_digtable.rssi_high_thresh)) {
+	if (priv->undecorated_smoothed_pwdb >= dm_digtable.rssi_high_thresh) {
 		u8 reset_flag = 0;
 
 		if (dm_digtable.dig_state == DM_STA_DIG_ON &&
 		    (priv->reset_count == reset_cnt)) {
 			dm_ctrl_initgain_byrssi_highpwr(dev);
 			return;
-		} else {
-			if (priv->reset_count != reset_cnt)
-				reset_flag = 1;
-
-			reset_cnt = priv->reset_count;
 		}
+		if (priv->reset_count != reset_cnt)
+			reset_flag = 1;
+
+		reset_cnt = priv->reset_count;
 
 		dm_digtable.dig_state = DM_STA_DIG_ON;
 
@@ -1911,8 +1903,7 @@ static void dm_ctrl_initgain_byrssi_highpwr(struct net_device *dev)
 		if (dm_digtable.dig_highpwr_state == DM_STA_DIG_ON &&
 			(priv->reset_count == reset_cnt_highpwr))
 			return;
-		else
-			dm_digtable.dig_highpwr_state = DM_STA_DIG_ON;
+		dm_digtable.dig_highpwr_state = DM_STA_DIG_ON;
 
 		if (priv->CurrentChannelBW != HT_CHANNEL_WIDTH_20)
 				write_nic_byte(dev, (rOFDM0_XATxAFE+3), 0x10);
@@ -1922,8 +1913,7 @@ static void dm_ctrl_initgain_byrssi_highpwr(struct net_device *dev)
 		if (dm_digtable.dig_highpwr_state == DM_STA_DIG_OFF &&
 			(priv->reset_count == reset_cnt_highpwr))
 			return;
-		else
-			dm_digtable.dig_highpwr_state = DM_STA_DIG_OFF;
+		dm_digtable.dig_highpwr_state = DM_STA_DIG_OFF;
 
 		if (priv->undecorated_smoothed_pwdb < dm_digtable.rssi_high_power_lowthresh &&
 			 priv->undecorated_smoothed_pwdb >= dm_digtable.rssi_high_thresh) {
@@ -2008,7 +1998,7 @@ static void dm_pd_th(struct net_device *dev)
 		if (dm_digtable.CurSTAConnectState == DIG_STA_CONNECT) {
 			if (dm_digtable.rssi_val >= dm_digtable.rssi_high_power_highthresh)
 				dm_digtable.curpd_thstate = DIG_PD_AT_HIGH_POWER;
-			else if ((dm_digtable.rssi_val <= dm_digtable.rssi_low_thresh))
+			else if (dm_digtable.rssi_val <= dm_digtable.rssi_low_thresh)
 				dm_digtable.curpd_thstate = DIG_PD_AT_LOW_POWER;
 			else if ((dm_digtable.rssi_val >= dm_digtable.rssi_high_thresh) &&
 					(dm_digtable.rssi_val < dm_digtable.rssi_high_power_lowthresh))
@@ -2065,9 +2055,9 @@ static	void dm_cs_ratio(struct net_device *dev)
 
 	if (dm_digtable.PreSTAConnectState == dm_digtable.CurSTAConnectState) {
 		if (dm_digtable.CurSTAConnectState == DIG_STA_CONNECT) {
-			if ((dm_digtable.rssi_val <= dm_digtable.rssi_low_thresh))
+			if (dm_digtable.rssi_val <= dm_digtable.rssi_low_thresh)
 				dm_digtable.curcs_ratio_state = DIG_CS_RATIO_LOWER;
-			else if ((dm_digtable.rssi_val >= dm_digtable.rssi_high_thresh))
+			else if (dm_digtable.rssi_val >= dm_digtable.rssi_high_thresh)
 				dm_digtable.curcs_ratio_state = DIG_CS_RATIO_HIGHER;
 			else
 				dm_digtable.curcs_ratio_state = dm_digtable.precs_ratio_state;
@@ -2131,10 +2121,10 @@ static void dm_check_edca_turbo(struct net_device *dev)
 		static int wb_tmp;
 
 		if (wb_tmp == 0) {
-			printk(KERN_INFO "%s():iot peer is %s, bssid:"
-			       " %pM\n", __func__,
-			       peername[pHTInfo->IOTPeer],
-			       priv->rtllib->current_network.bssid);
+			netdev_info(dev,
+				    "%s():iot peer is %s, bssid: %pM\n",
+				    __func__, peername[pHTInfo->IOTPeer],
+				    priv->rtllib->current_network.bssid);
 			wb_tmp = 1;
 		}
 	}
@@ -2638,9 +2628,10 @@ void dm_fsync_timer_callback(unsigned long data)
 		}
 		priv->rate_record = rate_count;
 		priv->rateCountDiffRecord = rate_count_diff;
-		RT_TRACE(COMP_HALDM, "rateRecord %d rateCount %d, rate"
-			 "Countdiff %d bSwitchFsync %d\n", priv->rate_record,
-			 rate_count, rate_count_diff, priv->bswitch_fsync);
+		RT_TRACE(COMP_HALDM,
+			 "rateRecord %d rateCount %d, rateCountdiff %d bSwitchFsync %d\n",
+			 priv->rate_record, rate_count, rate_count_diff,
+			 priv->bswitch_fsync);
 		if (priv->undecorated_smoothed_pwdb >
 		    priv->rtllib->fsync_rssi_threshold &&
 		    bSwitchFromCountDiff) {
@@ -2665,14 +2656,14 @@ void dm_fsync_timer_callback(unsigned long data)
 			if (timer_pending(&priv->fsync_timer))
 				del_timer_sync(&priv->fsync_timer);
 			priv->fsync_timer.expires = jiffies +
-				 MSECS(priv->rtllib->fsync_time_interval *
+				 msecs_to_jiffies(priv->rtllib->fsync_time_interval *
 				 priv->rtllib->fsync_multiple_timeinterval);
 			add_timer(&priv->fsync_timer);
 		} else {
 			if (timer_pending(&priv->fsync_timer))
 				del_timer_sync(&priv->fsync_timer);
 			priv->fsync_timer.expires = jiffies +
-				 MSECS(priv->rtllib->fsync_time_interval);
+				 msecs_to_jiffies(priv->rtllib->fsync_time_interval);
 			add_timer(&priv->fsync_timer);
 		}
 	} else {
@@ -2685,9 +2676,10 @@ void dm_fsync_timer_callback(unsigned long data)
 		write_nic_dword(dev, rOFDM0_RxDetector2, 0x465c52cd);
 	}
 	RT_TRACE(COMP_HALDM, "ContinueDiffCount %d\n", priv->ContinueDiffCount);
-	RT_TRACE(COMP_HALDM, "rateRecord %d rateCount %d, rateCountdiff %d "
-		 "bSwitchFsync %d\n", priv->rate_record, rate_count,
-		 rate_count_diff, priv->bswitch_fsync);
+	RT_TRACE(COMP_HALDM,
+		 "rateRecord %d rateCount %d, rateCountdiff %d bSwitchFsync %d\n",
+		 priv->rate_record, rate_count, rate_count_diff,
+		 priv->bswitch_fsync);
 }
 
 static void dm_StartHWFsync(struct net_device *dev)
@@ -2762,7 +2754,7 @@ static void dm_StartSWFsync(struct net_device *dev)
 	if (timer_pending(&priv->fsync_timer))
 		del_timer_sync(&priv->fsync_timer);
 	priv->fsync_timer.expires = jiffies +
-				    MSECS(priv->rtllib->fsync_time_interval);
+				    msecs_to_jiffies(priv->rtllib->fsync_time_interval);
 	add_timer(&priv->fsync_timer);
 
 	write_nic_dword(dev, rOFDM0_RxDetector2, 0x465c12cd);
@@ -2778,12 +2770,14 @@ void dm_check_fsync(struct net_device *dev)
 	static u8 reg_c38_State = RegC38_Default;
 	static u32 reset_cnt;
 
-	RT_TRACE(COMP_HALDM, "RSSI %d TimeInterval %d MultipleTimeInterval "
-		 "%d\n", priv->rtllib->fsync_rssi_threshold,
+	RT_TRACE(COMP_HALDM,
+		 "RSSI %d TimeInterval %d MultipleTimeInterval %d\n",
+		 priv->rtllib->fsync_rssi_threshold,
 		 priv->rtllib->fsync_time_interval,
 		 priv->rtllib->fsync_multiple_timeinterval);
-	RT_TRACE(COMP_HALDM, "RateBitmap 0x%x FirstDiffRateThreshold %d Second"
-		 "DiffRateThreshold %d\n", priv->rtllib->fsync_rate_bitmap,
+	RT_TRACE(COMP_HALDM,
+		 "RateBitmap 0x%x FirstDiffRateThreshold %d SecondDiffRateThreshold %d\n",
+		 priv->rtllib->fsync_rate_bitmap,
 		 priv->rtllib->fsync_firstdiff_ratethreshold,
 		 priv->rtllib->fsync_seconddiff_ratethreshold);
 
diff --git a/drivers/staging/rtl8192e/rtl8192e/rtl_dm.h b/drivers/staging/rtl8192e/rtl8192e/rtl_dm.h
index ab44a9a..3f02e11 100644
--- a/drivers/staging/rtl8192e/rtl8192e/rtl_dm.h
+++ b/drivers/staging/rtl8192e/rtl8192e/rtl_dm.h
@@ -255,14 +255,6 @@ extern	u8			test_flag;
 /*------------------------Export global variable----------------------------*/
 
 
-/*------------------------Export Marco Definition---------------------------*/
-#define DM_APInitGainChangeNotify(Event)		\
-	{						\
-		dm_digtable.CurAPConnectState = Event;	\
-	}
-/*------------------------Export Marco Definition---------------------------*/
-
-
 /*--------------------------Exported Function prototype---------------------*/
 /*--------------------------Exported Function prototype---------------------*/
 extern  void    init_hal_dm(struct net_device *dev);
diff --git a/drivers/staging/rtl8192e/rtl8192e/rtl_pci.c b/drivers/staging/rtl8192e/rtl8192e/rtl_pci.c
index 2ad92ee..51f53be 100644
--- a/drivers/staging/rtl8192e/rtl8192e/rtl_pci.c
+++ b/drivers/staging/rtl8192e/rtl8192e/rtl_pci.c
@@ -65,27 +65,32 @@ bool rtl8192_pci_findadapter(struct pci_dev *pdev, struct net_device *dev)
 	if (DeviceID == 0x8172) {
 		switch (RevisionID) {
 		case HAL_HW_PCI_REVISION_ID_8192PCIE:
-			printk(KERN_INFO "Adapter(8192 PCI-E) is found - "
-			       "DeviceID=%x\n", DeviceID);
+			dev_info(&pdev->dev,
+				 "Adapter(8192 PCI-E) is found - DeviceID=%x\n",
+				 DeviceID);
 			priv->card_8192 = NIC_8192E;
 			break;
 		case HAL_HW_PCI_REVISION_ID_8192SE:
-			printk(KERN_INFO "Adapter(8192SE) is found - "
-			       "DeviceID=%x\n", DeviceID);
+			dev_info(&pdev->dev,
+				 "Adapter(8192SE) is found - DeviceID=%x\n",
+				 DeviceID);
 			priv->card_8192 = NIC_8192SE;
 			break;
 		default:
-			printk(KERN_INFO "UNKNOWN nic type(%4x:%4x)\n",
-			       pdev->vendor, pdev->device);
+			dev_info(&pdev->dev,
+				 "UNKNOWN nic type(%4x:%4x)\n",
+				 pdev->vendor, pdev->device);
 			priv->card_8192 = NIC_UNKNOWN;
 			return false;
 		}
 	}
 
 	if (priv->ops->nic_type != priv->card_8192) {
-		printk(KERN_INFO "Detect info(%x) and hardware info(%x) not match!\n",
-				priv->ops->nic_type, priv->card_8192);
-		printk(KERN_INFO "Please select proper driver before install!!!!\n");
+		dev_info(&pdev->dev,
+			 "Detect info(%x) and hardware info(%x) not match!\n",
+			 priv->ops->nic_type, priv->card_8192);
+		dev_info(&pdev->dev,
+			 "Please select proper driver before install!!!!\n");
 		return false;
 	}
 
diff --git a/drivers/staging/rtl8192e/rtl8192e/rtl_pm.c b/drivers/staging/rtl8192e/rtl8192e/rtl_pm.c
index 0b4f764..ca6ecfc 100644
--- a/drivers/staging/rtl8192e/rtl8192e/rtl_pm.c
+++ b/drivers/staging/rtl8192e/rtl8192e/rtl_pm.c
@@ -29,14 +29,14 @@ int rtl8192E_suspend(struct pci_dev *pdev, pm_message_t state)
 	struct r8192_priv *priv = rtllib_priv(dev);
 	u32	ulRegRead;
 
-	printk(KERN_INFO "============> r8192E suspend call.\n");
+	netdev_info(dev, "============> r8192E suspend call.\n");
 	del_timer_sync(&priv->gpio_polling_timer);
 	cancel_delayed_work(&priv->gpio_change_rf_wq);
 	priv->polling_timer_on = 0;
 
 	if (!netif_running(dev)) {
-		printk(KERN_INFO "RTL819XE:UI is open out of suspend "
-		       "function\n");
+		netdev_info(dev,
+			    "RTL819XE:UI is open out of suspend function\n");
 		goto out_pci_suspend;
 	}
 
@@ -57,10 +57,10 @@ int rtl8192E_suspend(struct pci_dev *pdev, pm_message_t state)
 		write_nic_byte(dev, MacBlkCtrl, 0xa);
 	}
 out_pci_suspend:
-	printk("r8192E support WOL call??????????????????????\n");
+	netdev_info(dev, "r8192E support WOL call??????????????????????\n");
 	if (priv->rtllib->bSupportRemoteWakeUp)
-		RT_TRACE(COMP_POWER, "r8192E support WOL call!!!!!!!"
-			 "!!!!!!!!!!!.\n");
+		RT_TRACE(COMP_POWER,
+			 "r8192E support WOL call!!!!!!!!!!!!!!!!!!.\n");
 	pci_save_state(pdev);
 	pci_disable_device(pdev);
 	pci_enable_wake(pdev, pci_choose_state(pdev, state),
@@ -79,14 +79,13 @@ int rtl8192E_resume(struct pci_dev *pdev)
 	int err;
 	u32 val;
 
-	printk(KERN_INFO "================>r8192E resume call.\n");
+	netdev_info(dev, "================>r8192E resume call.\n");
 
 	pci_set_power_state(pdev, PCI_D0);
 
 	err = pci_enable_device(pdev);
 	if (err) {
-		printk(KERN_ERR "%s: pci_enable_device failed on resume\n",
-		       dev->name);
+		netdev_err(dev, "pci_enable_device failed on resume\n");
 		return err;
 	}
 	pci_restore_state(pdev);
@@ -101,8 +100,8 @@ int rtl8192E_resume(struct pci_dev *pdev)
 		check_rfctrl_gpio_timer((unsigned long)dev);
 
 	if (!netif_running(dev)) {
-		printk(KERN_INFO "RTL819XE:UI is open out of resume "
-		       "function\n");
+		netdev_info(dev,
+			    "RTL819XE:UI is open out of resume function\n");
 		goto out;
 	}
 
diff --git a/drivers/staging/rtl8192e/rtl8192e/rtl_ps.c b/drivers/staging/rtl8192e/rtl8192e/rtl_ps.c
index 4856b76..0bbffec 100644
--- a/drivers/staging/rtl8192e/rtl8192e/rtl_ps.c
+++ b/drivers/staging/rtl8192e/rtl8192e/rtl_ps.c
@@ -37,8 +37,8 @@ static void rtl8192_hw_sleep_down(struct net_device *dev)
 	spin_lock_irqsave(&priv->rf_ps_lock, flags);
 	if (priv->RFChangeInProgress) {
 		spin_unlock_irqrestore(&priv->rf_ps_lock, flags);
-		RT_TRACE(COMP_DBG, "rtl8192_hw_sleep_down(): RF Change in "
-			 "progress!\n");
+		RT_TRACE(COMP_DBG,
+			 "rtl8192_hw_sleep_down(): RF Change in progress!\n");
 		return;
 	}
 	spin_unlock_irqrestore(&priv->rf_ps_lock, flags);
@@ -64,10 +64,11 @@ void rtl8192_hw_wakeup(struct net_device *dev)
 	spin_lock_irqsave(&priv->rf_ps_lock, flags);
 	if (priv->RFChangeInProgress) {
 		spin_unlock_irqrestore(&priv->rf_ps_lock, flags);
-		RT_TRACE(COMP_DBG, "rtl8192_hw_wakeup(): RF Change in "
-			 "progress!\n");
+		RT_TRACE(COMP_DBG,
+			 "rtl8192_hw_wakeup(): RF Change in progress!\n");
 		queue_delayed_work_rsl(priv->rtllib->wq,
-				       &priv->rtllib->hw_wakeup_wq, MSECS(10));
+				       &priv->rtllib->hw_wakeup_wq,
+				       msecs_to_jiffies(10));
 		return;
 	}
 	spin_unlock_irqrestore(&priv->rf_ps_lock, flags);
@@ -95,18 +96,18 @@ void rtl8192_hw_to_sleep(struct net_device *dev, u64 time)
 
 	spin_lock_irqsave(&priv->ps_lock, flags);
 
-	time -= MSECS(8+16+7);
+	time -= msecs_to_jiffies(8 + 16 + 7);
 
-	if ((time - jiffies) <= MSECS(MIN_SLEEP_TIME)) {
+	if ((time - jiffies) <= msecs_to_jiffies(MIN_SLEEP_TIME)) {
 		spin_unlock_irqrestore(&priv->ps_lock, flags);
-		printk(KERN_INFO "too short to sleep::%lld < %ld\n",
-		       time - jiffies, MSECS(MIN_SLEEP_TIME));
+		netdev_info(dev, "too short to sleep::%lld < %ld\n",
+			    time - jiffies, msecs_to_jiffies(MIN_SLEEP_TIME));
 		return;
 	}
 
-	if ((time - jiffies) > MSECS(MAX_SLEEP_TIME)) {
-		printk(KERN_INFO "========>too long to sleep:%lld > %ld\n",
-		       time - jiffies,  MSECS(MAX_SLEEP_TIME));
+	if ((time - jiffies) > msecs_to_jiffies(MAX_SLEEP_TIME)) {
+		netdev_info(dev, "========>too long to sleep:%lld > %ld\n",
+			    time - jiffies, msecs_to_jiffies(MAX_SLEEP_TIME));
 		spin_unlock_irqrestore(&priv->ps_lock, flags);
 		return;
 	}
@@ -201,12 +202,11 @@ void rtllib_ips_leave_wq(struct net_device *dev)
 				RT_TRACE(COMP_ERR, "%s(): RF is OFF.\n",
 					 __func__);
 				return;
-			} else {
-				printk(KERN_INFO "=========>%s(): IPSLeave\n",
-				       __func__);
-				queue_work_rsl(priv->rtllib->wq,
-					       &priv->rtllib->ips_leave_wq);
 			}
+			netdev_info(dev, "=========>%s(): IPSLeave\n",
+				    __func__);
+			queue_work_rsl(priv->rtllib->wq,
+				       &priv->rtllib->ips_leave_wq);
 		}
 	}
 }
@@ -239,8 +239,8 @@ static bool MgntActSet_802_11_PowerSaveMode(struct net_device *dev,
 		priv->rtllib->sta_sleep = LPS_IS_WAKE;
 
 		spin_lock_irqsave(&(priv->rtllib->mgmt_tx_lock), flags);
-		RT_TRACE(COMP_DBG, "LPS leave: notify AP we are awaked"
-			 " ++++++++++ SendNullFunctionData\n");
+		RT_TRACE(COMP_DBG,
+			 "LPS leave: notify AP we are awaked ++++++++++ SendNullFunctionData\n");
 		rtllib_sta_ps_send_null_frame(priv->rtllib, 0);
 		spin_unlock_irqrestore(&(priv->rtllib->mgmt_tx_lock), flags);
 	}
@@ -255,8 +255,8 @@ void LeisurePSEnter(struct net_device *dev)
 					&(priv->rtllib->PowerSaveControl);
 
 	RT_TRACE(COMP_PS, "LeisurePSEnter()...\n");
-	RT_TRACE(COMP_PS, "pPSC->bLeisurePs = %d, ieee->ps = %d,pPSC->LpsIdle"
-		 "Count is %d,RT_CHECK_FOR_HANG_PERIOD is %d\n",
+	RT_TRACE(COMP_PS,
+		 "pPSC->bLeisurePs = %d, ieee->ps = %d,pPSC->LpsIdleCount is %d,RT_CHECK_FOR_HANG_PERIOD is %d\n",
 		 pPSC->bLeisurePs, priv->rtllib->ps, pPSC->LpsIdleCount,
 		 RT_CHECK_FOR_HANG_PERIOD);
 
@@ -271,8 +271,8 @@ void LeisurePSEnter(struct net_device *dev)
 
 			if (priv->rtllib->ps == RTLLIB_PS_DISABLED) {
 
-				RT_TRACE(COMP_LPS, "LeisurePSEnter(): Enter "
-					 "802.11 power save mode...\n");
+				RT_TRACE(COMP_LPS,
+					 "LeisurePSEnter(): Enter 802.11 power save mode...\n");
 
 				if (!pPSC->bFwCtrlLPS) {
 					if (priv->rtllib->SetFwCmdHandler)
@@ -301,8 +301,8 @@ void LeisurePSLeave(struct net_device *dev)
 
 	if (pPSC->bLeisurePs) {
 		if (priv->rtllib->ps != RTLLIB_PS_DISABLED) {
-			RT_TRACE(COMP_LPS, "LeisurePSLeave(): Busy Traffic , "
-				 "Leave 802.11 power save..\n");
+			RT_TRACE(COMP_LPS,
+				 "LeisurePSLeave(): Busy Traffic , Leave 802.11 power save..\n");
 			MgntActSet_802_11_PowerSaveMode(dev,
 					 RTLLIB_PS_DISABLED);
 
diff --git a/drivers/staging/rtl8192e/rtl8192e/rtl_wx.c b/drivers/staging/rtl8192e/rtl8192e/rtl_wx.c
index df0323f..8d6a109 100644
--- a/drivers/staging/rtl8192e/rtl8192e/rtl_wx.c
+++ b/drivers/staging/rtl8192e/rtl8192e/rtl_wx.c
@@ -67,7 +67,7 @@ static int r8192_wx_set_rate(struct net_device *dev,
 	int ret;
 	struct r8192_priv *priv = rtllib_priv(dev);
 
-	if (priv->bHwRadioOff == true)
+	if (priv->bHwRadioOff)
 		return 0;
 
 	down(&priv->wx_sem);
@@ -87,7 +87,7 @@ static int r8192_wx_set_rts(struct net_device *dev,
 	int ret;
 	struct r8192_priv *priv = rtllib_priv(dev);
 
-	if (priv->bHwRadioOff == true)
+	if (priv->bHwRadioOff)
 		return 0;
 
 	down(&priv->wx_sem);
@@ -115,9 +115,10 @@ static int r8192_wx_set_power(struct net_device *dev,
 	int ret;
 	struct r8192_priv *priv = rtllib_priv(dev);
 
-	if (priv->bHwRadioOff == true) {
-		RT_TRACE(COMP_ERR, "%s():Hw is Radio Off, we can't set "
-			 "Power,return\n", __func__);
+	if (priv->bHwRadioOff) {
+		RT_TRACE(COMP_ERR,
+			 "%s():Hw is Radio Off, we can't set Power,return\n",
+			 __func__);
 		return 0;
 	}
 	down(&priv->wx_sem);
@@ -145,7 +146,7 @@ static int r8192_wx_set_rawtx(struct net_device *dev,
 	struct r8192_priv *priv = rtllib_priv(dev);
 	int ret;
 
-	if (priv->bHwRadioOff == true)
+	if (priv->bHwRadioOff)
 		return 0;
 
 	down(&priv->wx_sem);
@@ -254,10 +255,11 @@ static int r8192se_wx_set_radio(struct net_device *dev,
 
 	down(&priv->wx_sem);
 
-	printk(KERN_INFO "%s(): set radio ! extra is %d\n", __func__, *extra);
+	netdev_info(dev, "%s(): set radio ! extra is %d\n", __func__, *extra);
 	if ((*extra != 0) && (*extra != 1)) {
-		RT_TRACE(COMP_ERR, "%s(): set radio an err value,must 0(radio "
-			 "off) or 1(radio on)\n", __func__);
+		RT_TRACE(COMP_ERR,
+			 "%s(): set radio an err value,must 0(radio off) or 1(radio on)\n",
+			 __func__);
 		up(&priv->wx_sem);
 		return -1;
 	}
@@ -277,8 +279,8 @@ static int r8192se_wx_set_lps_awake_interval(struct net_device *dev,
 
 	down(&priv->wx_sem);
 
-	printk(KERN_INFO "%s(): set lps awake interval ! extra is %d\n",
-	       __func__, *extra);
+	netdev_info(dev, "%s(): set lps awake interval ! extra is %d\n",
+		    __func__, *extra);
 
 	pPSC->RegMaxLPSAwakeIntvl = *extra;
 	up(&priv->wx_sem);
@@ -293,8 +295,9 @@ static int r8192se_wx_set_force_lps(struct net_device *dev,
 
 	down(&priv->wx_sem);
 
-	printk(KERN_INFO "%s(): force LPS ! extra is %d (1 is open 0 is "
-	       "close)\n", __func__, *extra);
+	netdev_info(dev,
+		    "%s(): force LPS ! extra is %d (1 is open 0 is close)\n",
+		    __func__, *extra);
 	priv->force_lps = *extra;
 	up(&priv->wx_sem);
 	return 0;
@@ -308,11 +311,11 @@ static int r8192_wx_set_debugflag(struct net_device *dev,
 	struct r8192_priv *priv = rtllib_priv(dev);
 	u8 c = *extra;
 
-	if (priv->bHwRadioOff == true)
+	if (priv->bHwRadioOff)
 		return 0;
 
-	printk(KERN_INFO "=====>%s(), *extra:%x, debugflag:%x\n", __func__,
-	       *extra, rt_global_debug_component);
+	netdev_info(dev, "=====>%s(), *extra:%x, debugflag:%x\n", __func__,
+		    *extra, rt_global_debug_component);
 	if (c > 0)
 		rt_global_debug_component |= (1<<c);
 	else
@@ -329,7 +332,7 @@ static int r8192_wx_set_mode(struct net_device *dev, struct iw_request_info *a,
 	enum rt_rf_power_state rtState;
 	int ret;
 
-	if (priv->bHwRadioOff == true)
+	if (priv->bHwRadioOff)
 		return 0;
 	rtState = priv->rtllib->eRFPowerState;
 	down(&priv->wx_sem);
@@ -343,13 +346,12 @@ static int r8192_wx_set_mode(struct net_device *dev, struct iw_request_info *a,
 						 __func__);
 					up(&priv->wx_sem);
 					return -1;
-				} else {
-					printk(KERN_INFO "=========>%s(): "
-					       "IPSLeave\n", __func__);
-					down(&priv->rtllib->ips_sem);
-					IPSLeave(dev);
-					up(&priv->rtllib->ips_sem);
 				}
+				netdev_info(dev,  "=========>%s(): IPSLeave\n",
+					    __func__);
+				down(&priv->rtllib->ips_sem);
+				IPSLeave(dev);
+				up(&priv->rtllib->ips_sem);
 			}
 		}
 	}
@@ -470,9 +472,9 @@ static int r8192_wx_set_scan(struct net_device *dev, struct iw_request_info *a,
 			return 0;
 	}
 
-	if (priv->bHwRadioOff == true) {
-		printk(KERN_INFO "================>%s(): hwradio off\n",
-		       __func__);
+	if (priv->bHwRadioOff) {
+		netdev_info(dev, "================>%s(): hwradio off\n",
+			    __func__);
 		return 0;
 	}
 	rtState = priv->rtllib->eRFPowerState;
@@ -500,17 +502,17 @@ static int r8192_wx_set_scan(struct net_device *dev, struct iw_request_info *a,
 			if (rtState == eRfOff) {
 				if (priv->rtllib->RfOffReason >
 				    RF_CHANGE_BY_IPS) {
-					RT_TRACE(COMP_ERR, "%s(): RF is "
-						 "OFF.\n", __func__);
+					RT_TRACE(COMP_ERR,
+						 "%s(): RF is OFF.\n",
+						 __func__);
 					up(&priv->wx_sem);
 					return -1;
-				} else {
-					RT_TRACE(COMP_PS, "=========>%s(): "
-						 "IPSLeave\n", __func__);
-					down(&priv->rtllib->ips_sem);
-					IPSLeave(dev);
-					up(&priv->rtllib->ips_sem);
 				}
+				RT_TRACE(COMP_PS, "=========>%s(): IPSLeave\n",
+					 __func__);
+				down(&priv->rtllib->ips_sem);
+				IPSLeave(dev);
+				up(&priv->rtllib->ips_sem);
 			}
 		}
 		rtllib_stop_scan(priv->rtllib);
@@ -552,7 +554,7 @@ static int r8192_wx_get_scan(struct net_device *dev, struct iw_request_info *a,
 	if (!priv->up)
 		return -ENETDOWN;
 
-	if (priv->bHwRadioOff == true)
+	if (priv->bHwRadioOff)
 		return 0;
 
 
@@ -572,13 +574,10 @@ static int r8192_wx_set_essid(struct net_device *dev,
 	struct r8192_priv *priv = rtllib_priv(dev);
 	int ret;
 
-	if ((rtllib_act_scanning(priv->rtllib, false)) &&
-	    !(priv->rtllib->softmac_features & IEEE_SOFTMAC_SCAN)) {
-		;	/* TODO - get rid of if */
-	}
-	if (priv->bHwRadioOff == true) {
-		printk(KERN_INFO "=========>%s():hw radio off,or Rf state is "
-		       "eRfOff, return\n", __func__);
+	if (priv->bHwRadioOff) {
+		netdev_info(dev,
+			    "=========>%s():hw radio off,or Rf state is eRfOff, return\n",
+			    __func__);
 		return 0;
 	}
 	down(&priv->wx_sem);
@@ -642,7 +641,7 @@ static int r8192_wx_set_freq(struct net_device *dev, struct iw_request_info *a,
 	int ret;
 	struct r8192_priv *priv = rtllib_priv(dev);
 
-	if (priv->bHwRadioOff == true)
+	if (priv->bHwRadioOff)
 		return 0;
 
 	down(&priv->wx_sem);
@@ -669,7 +668,7 @@ static int r8192_wx_set_frag(struct net_device *dev,
 {
 	struct r8192_priv *priv = rtllib_priv(dev);
 
-	if (priv->bHwRadioOff == true)
+	if (priv->bHwRadioOff)
 		return 0;
 
 	if (wrqu->frag.disabled)
@@ -708,12 +707,7 @@ static int r8192_wx_set_wap(struct net_device *dev,
 	int ret;
 	struct r8192_priv *priv = rtllib_priv(dev);
 
-	if ((rtllib_act_scanning(priv->rtllib, false)) &&
-	    !(priv->rtllib->softmac_features & IEEE_SOFTMAC_SCAN)) {
-		;	/* TODO - get rid of if */
-	}
-
-	if (priv->bHwRadioOff == true)
+	if (priv->bHwRadioOff)
 		return 0;
 
 	down(&priv->wx_sem);
@@ -763,10 +757,7 @@ static int r8192_wx_set_enc(struct net_device *dev,
 			     {0x00, 0x00, 0x00, 0x00, 0x00, 0x03} };
 	int i;
 
-	if ((rtllib_act_scanning(priv->rtllib, false)) &&
-	   !(priv->rtllib->softmac_features & IEEE_SOFTMAC_SCAN))
-		;	/* TODO - get rid of if */
-	if (priv->bHwRadioOff == true)
+	if (priv->bHwRadioOff)
 		return 0;
 
 	if (!priv->up)
@@ -838,7 +829,8 @@ static int r8192_wx_set_enc(struct net_device *dev,
 			set_swcam(dev, key_idx, key_idx, KEY_TYPE_WEP104,
 				  zero_addr[key_idx], 0, hwkey, 0);
 		} else {
-			 printk(KERN_INFO "wrong type in WEP, not WEP40 and WEP104\n");
+			netdev_info(dev,
+				    "wrong type in WEP, not WEP40 and WEP104\n");
 		}
 	}
 
@@ -855,7 +847,7 @@ static int r8192_wx_set_scan_type(struct net_device *dev,
 	int *parms = (int *)p;
 	int mode = parms[0];
 
-	if (priv->bHwRadioOff == true)
+	if (priv->bHwRadioOff)
 		return 0;
 
 	priv->rtllib->active_scan = mode;
@@ -873,7 +865,7 @@ static int r8192_wx_set_retry(struct net_device *dev,
 	struct r8192_priv *priv = rtllib_priv(dev);
 	int err = 0;
 
-	if (priv->bHwRadioOff == true)
+	if (priv->bHwRadioOff)
 		return 0;
 
 	down(&priv->wx_sem);
@@ -956,7 +948,7 @@ static int r8192_wx_set_sens(struct net_device *dev,
 
 	short err = 0;
 
-	if (priv->bHwRadioOff == true)
+	if (priv->bHwRadioOff)
 		return 0;
 
 	down(&priv->wx_sem);
@@ -983,7 +975,7 @@ static int r8192_wx_set_enc_ext(struct net_device *dev,
 	struct r8192_priv *priv = rtllib_priv(dev);
 	struct rtllib_device *ieee = priv->rtllib;
 
-	if (priv->bHwRadioOff == true)
+	if (priv->bHwRadioOff)
 		return 0;
 
 	down(&priv->wx_sem);
@@ -1064,7 +1056,7 @@ static int r8192_wx_set_auth(struct net_device *dev,
 
 	struct r8192_priv *priv = rtllib_priv(dev);
 
-	if (priv->bHwRadioOff == true)
+	if (priv->bHwRadioOff)
 		return 0;
 
 	down(&priv->wx_sem);
@@ -1082,7 +1074,7 @@ static int r8192_wx_set_mlme(struct net_device *dev,
 
 	struct r8192_priv *priv = rtllib_priv(dev);
 
-	if (priv->bHwRadioOff == true)
+	if (priv->bHwRadioOff)
 		return 0;
 
 	down(&priv->wx_sem);
@@ -1099,7 +1091,7 @@ static int r8192_wx_set_gen_ie(struct net_device *dev,
 
 	struct r8192_priv *priv = rtllib_priv(dev);
 
-	if (priv->bHwRadioOff == true)
+	if (priv->bHwRadioOff)
 		return 0;
 
 	down(&priv->wx_sem);
@@ -1160,8 +1152,10 @@ static int r8192_wx_set_PromiscuousMode(struct net_device *dev,
 			(rtllib_EnableIntelPromiscuousMode(dev, false)) :
 			(rtllib_DisableIntelPromiscuousMode(dev, false));
 
-		printk(KERN_INFO "=======>%s(), on = %d, filter src sta = %d\n",
-		       __func__, bPromiscuousOn, bFilterSourceStationFrame);
+		netdev_info(dev,
+			    "=======>%s(), on = %d, filter src sta = %d\n",
+			    __func__, bPromiscuousOn,
+			    bFilterSourceStationFrame);
 	} else {
 		return -1;
 	}
@@ -1227,11 +1221,10 @@ static iw_handler r8192_wx_handlers[] = {
 	IW_IOCTL(SIOCSIWENCODEEXT) = r8192_wx_set_enc_ext,
 };
 
-/*
- * the following rule need to be following,
+/* the following rule need to be following,
  * Odd : get (world access),
  * even : set (root access)
- * */
+ */
 static const struct iw_priv_args r8192_private_args[] = {
 	{
 		SIOCIWFIRSTPRIV + 0x0,
diff --git a/drivers/staging/rtl8192e/rtl819x_BAProc.c b/drivers/staging/rtl8192e/rtl819x_BAProc.c
index 0415e02..26258ea 100644
--- a/drivers/staging/rtl8192e/rtl819x_BAProc.c
+++ b/drivers/staging/rtl8192e/rtl819x_BAProc.c
@@ -26,7 +26,7 @@ static void ActivateBAEntry(struct rtllib_device *ieee, struct ba_record *pBA,
 {
 	pBA->bValid = true;
 	if (Time != 0)
-		mod_timer(&pBA->Timer, jiffies + MSECS(Time));
+		mod_timer(&pBA->Timer, jiffies + msecs_to_jiffies(Time));
 }
 
 static void DeActivateBAEntry(struct rtllib_device *ieee, struct ba_record *pBA)
@@ -83,9 +83,9 @@ static struct sk_buff *rtllib_ADDBA(struct rtllib_device *ieee, u8 *Dst,
 	u8 *tag = NULL;
 	u16 len = ieee->tx_headroom + 9;
 
-	RTLLIB_DEBUG(RTLLIB_DL_TRACE | RTLLIB_DL_BA, "========>%s(), frame(%d)"
-		     " sentd to: %pM, ieee->dev:%p\n", __func__,
-		     type, Dst, ieee->dev);
+	RTLLIB_DEBUG(RTLLIB_DL_TRACE | RTLLIB_DL_BA,
+		     "========>%s(), frame(%d) sentd to: %pM, ieee->dev:%p\n",
+		     __func__, type, Dst, ieee->dev);
 	if (pBA == NULL) {
 		RTLLIB_DEBUG(RTLLIB_DL_ERR, "pBA is NULL\n");
 		return NULL;
@@ -148,9 +148,8 @@ static struct sk_buff *rtllib_DELBA(struct rtllib_device *ieee, u8 *dst,
 
 	if (net_ratelimit())
 		RTLLIB_DEBUG(RTLLIB_DL_TRACE | RTLLIB_DL_BA,
-			     "========>%s(), Reason"
-			     "Code(%d) sentd to: %pM\n", __func__,
-			     ReasonCode, dst);
+			     "========>%s(), ReasonCode(%d) sentd to: %pM\n",
+			     __func__, ReasonCode, dst);
 
 	memset(&DelbaParamSet, 0, 2);
 
@@ -203,8 +202,8 @@ static void rtllib_send_ADDBAReq(struct rtllib_device *ieee, u8 *dst,
 		RT_TRACE(COMP_DBG, "====>to send ADDBAREQ!!!!!\n");
 		softmac_mgmt_xmit(skb, ieee);
 	} else {
-		RTLLIB_DEBUG(RTLLIB_DL_ERR, "alloc skb error in function"
-			     " %s()\n", __func__);
+		RTLLIB_DEBUG(RTLLIB_DL_ERR,
+			     "alloc skb error in function %s()\n", __func__);
 	}
 }
 
@@ -217,8 +216,8 @@ static void rtllib_send_ADDBARsp(struct rtllib_device *ieee, u8 *dst,
 	if (skb)
 		softmac_mgmt_xmit(skb, ieee);
 	else
-		RTLLIB_DEBUG(RTLLIB_DL_ERR, "alloc skb error in function"
-			     " %s()\n", __func__);
+		RTLLIB_DEBUG(RTLLIB_DL_ERR,
+			     "alloc skb error in function %s()\n", __func__);
 }
 
 static void rtllib_send_DELBA(struct rtllib_device *ieee, u8 *dst,
@@ -231,8 +230,8 @@ static void rtllib_send_DELBA(struct rtllib_device *ieee, u8 *dst,
 	if (skb)
 		softmac_mgmt_xmit(skb, ieee);
 	else
-		RTLLIB_DEBUG(RTLLIB_DL_ERR, "alloc skb error in function"
-			     " %s()\n", __func__);
+		RTLLIB_DEBUG(RTLLIB_DL_ERR,
+			     "alloc skb error in function %s()\n", __func__);
 }
 
 int rtllib_rx_ADDBAReq(struct rtllib_device *ieee, struct sk_buff *skb)
@@ -247,8 +246,9 @@ int rtllib_rx_ADDBAReq(struct rtllib_device *ieee, struct sk_buff *skb)
 	struct rx_ts_record *pTS = NULL;
 
 	if (skb->len < sizeof(struct rtllib_hdr_3addr) + 9) {
-		RTLLIB_DEBUG(RTLLIB_DL_ERR, " Invalid skb len in BAREQ(%d / "
-			     "%d)\n", (int)skb->len,
+		RTLLIB_DEBUG(RTLLIB_DL_ERR,
+			     " Invalid skb len in BAREQ(%d / %d)\n",
+			     (int)skb->len,
 			     (int)(sizeof(struct rtllib_hdr_3addr) + 9));
 		return -1;
 	}
@@ -269,8 +269,8 @@ int rtllib_rx_ADDBAReq(struct rtllib_device *ieee, struct sk_buff *skb)
 	    (ieee->pHTInfo->bCurrentHTSupport == false) ||
 	    (ieee->pHTInfo->IOTAction & HT_IOT_ACT_REJECT_ADDBA_REQ)) {
 		rc = ADDBA_STATUS_REFUSED;
-		RTLLIB_DEBUG(RTLLIB_DL_ERR, "Failed to reply on ADDBA_REQ as "
-			     "some capability is not ready(%d, %d)\n",
+		RTLLIB_DEBUG(RTLLIB_DL_ERR,
+			     "Failed to reply on ADDBA_REQ as some capability is not ready(%d, %d)\n",
 			     ieee->current_network.qos_data.active,
 			     ieee->pHTInfo->bCurrentHTSupport);
 		goto OnADDBAReq_Fail;
@@ -285,8 +285,8 @@ int rtllib_rx_ADDBAReq(struct rtllib_device *ieee, struct sk_buff *skb)
 
 	if (pBaParamSet->field.BAPolicy == BA_POLICY_DELAYED) {
 		rc = ADDBA_STATUS_INVALID_PARAM;
-		RTLLIB_DEBUG(RTLLIB_DL_ERR, "BA Policy is not correct in "
-			     "%s()\n", __func__);
+		RTLLIB_DEBUG(RTLLIB_DL_ERR,
+			     "BA Policy is not correct in %s()\n", __func__);
 		goto OnADDBAReq_Fail;
 	}
 
@@ -333,8 +333,9 @@ int rtllib_rx_ADDBARsp(struct rtllib_device *ieee, struct sk_buff *skb)
 	u16			ReasonCode;
 
 	if (skb->len < sizeof(struct rtllib_hdr_3addr) + 9) {
-		RTLLIB_DEBUG(RTLLIB_DL_ERR, " Invalid skb len in BARSP(%d / "
-			     "%d)\n", (int)skb->len,
+		RTLLIB_DEBUG(RTLLIB_DL_ERR,
+			     "Invalid skb len in BARSP(%d / %d)\n",
+			     (int)skb->len,
 			     (int)(sizeof(struct rtllib_hdr_3addr) + 9));
 		return -1;
 	}
@@ -351,8 +352,8 @@ int rtllib_rx_ADDBARsp(struct rtllib_device *ieee, struct sk_buff *skb)
 	if (ieee->current_network.qos_data.active == 0  ||
 	    ieee->pHTInfo->bCurrentHTSupport == false ||
 	    ieee->pHTInfo->bCurrentAMPDUEnable == false) {
-		RTLLIB_DEBUG(RTLLIB_DL_ERR, "reject to ADDBA_RSP as some capab"
-			     "ility is not ready(%d, %d, %d)\n",
+		RTLLIB_DEBUG(RTLLIB_DL_ERR,
+			     "reject to ADDBA_RSP as some capability is not ready(%d, %d, %d)\n",
 			     ieee->current_network.qos_data.active,
 			     ieee->pHTInfo->bCurrentHTSupport,
 			     ieee->pHTInfo->bCurrentAMPDUEnable);
@@ -374,18 +375,19 @@ int rtllib_rx_ADDBARsp(struct rtllib_device *ieee, struct sk_buff *skb)
 
 
 	if (pAdmittedBA->bValid == true) {
-		RTLLIB_DEBUG(RTLLIB_DL_BA, "OnADDBARsp(): Recv ADDBA Rsp."
-			     " Drop because already admit it!\n");
+		RTLLIB_DEBUG(RTLLIB_DL_BA,
+			     "OnADDBARsp(): Recv ADDBA Rsp. Drop because already admit it!\n");
 		return -1;
 	} else if ((pPendingBA->bValid == false) ||
 		   (*pDialogToken != pPendingBA->DialogToken)) {
-		RTLLIB_DEBUG(RTLLIB_DL_ERR,  "OnADDBARsp(): Recv ADDBA Rsp. "
-			     "BA invalid, DELBA!\n");
+		RTLLIB_DEBUG(RTLLIB_DL_ERR,
+			     "OnADDBARsp(): Recv ADDBA Rsp. BA invalid, DELBA!\n");
 		ReasonCode = DELBA_REASON_UNKNOWN_BA;
 		goto OnADDBARsp_Reject;
 	} else {
-		RTLLIB_DEBUG(RTLLIB_DL_BA, "OnADDBARsp(): Recv ADDBA Rsp. BA "
-			     "is admitted! Status code:%X\n", *pStatusCode);
+		RTLLIB_DEBUG(RTLLIB_DL_BA,
+			     "OnADDBARsp(): Recv ADDBA Rsp. BA is admitted! Status code:%X\n",
+			     *pStatusCode);
 		DeActivateBAEntry(ieee, pPendingBA);
 	}
 
@@ -432,16 +434,17 @@ int rtllib_rx_DELBA(struct rtllib_device *ieee, struct sk_buff *skb)
 	u8 *dst = NULL;
 
 	if (skb->len < sizeof(struct rtllib_hdr_3addr) + 6) {
-		RTLLIB_DEBUG(RTLLIB_DL_ERR, " Invalid skb len in DELBA(%d /"
-			     " %d)\n", (int)skb->len,
+		RTLLIB_DEBUG(RTLLIB_DL_ERR,
+			     "Invalid skb len in DELBA(%d / %d)\n",
+			     (int)skb->len,
 			     (int)(sizeof(struct rtllib_hdr_3addr) + 6));
 		return -1;
 	}
 
 	if (ieee->current_network.qos_data.active == 0  ||
 		ieee->pHTInfo->bCurrentHTSupport == false) {
-		RTLLIB_DEBUG(RTLLIB_DL_ERR, "received DELBA while QOS or HT "
-			     "is not supported(%d, %d)\n",
+		RTLLIB_DEBUG(RTLLIB_DL_ERR,
+			     "received DELBA while QOS or HT is not supported(%d, %d)\n",
 			     ieee->current_network. qos_data.active,
 			     ieee->pHTInfo->bCurrentHTSupport);
 		return -1;
@@ -459,8 +462,9 @@ int rtllib_rx_DELBA(struct rtllib_device *ieee, struct sk_buff *skb)
 
 		if (!GetTs(ieee, (struct ts_common_info **)&pRxTs, dst,
 		    (u8)pDelBaParamSet->field.TID, RX_DIR, false)) {
-			RTLLIB_DEBUG(RTLLIB_DL_ERR,  "can't get TS for RXTS in "
-				     "%s().dst: %pM TID:%d\n", __func__, dst,
+			RTLLIB_DEBUG(RTLLIB_DL_ERR,
+				     "can't get TS for RXTS in %s().dst: %pM TID:%d\n",
+				     __func__, dst,
 				     (u8)pDelBaParamSet->field.TID);
 			return -1;
 		}
@@ -471,8 +475,9 @@ int rtllib_rx_DELBA(struct rtllib_device *ieee, struct sk_buff *skb)
 
 		if (!GetTs(ieee, (struct ts_common_info **)&pTxTs, dst,
 			   (u8)pDelBaParamSet->field.TID, TX_DIR, false)) {
-			RTLLIB_DEBUG(RTLLIB_DL_ERR,  "can't get TS for TXTS in "
-				     "%s()\n", __func__);
+			RTLLIB_DEBUG(RTLLIB_DL_ERR,
+				     "can't get TS for TXTS in %s()\n",
+				     __func__);
 			return -1;
 		}
 
diff --git a/drivers/staging/rtl8192e/rtl819x_HT.h b/drivers/staging/rtl8192e/rtl819x_HT.h
index 13f4105..f7076d7 100644
--- a/drivers/staging/rtl8192e/rtl819x_HT.h
+++ b/drivers/staging/rtl8192e/rtl819x_HT.h
@@ -77,43 +77,6 @@ enum chnl_op {
 	CHNLOP_SWCHNL = 3,
 };
 
-#define CHHLOP_IN_PROGRESS(_pHTInfo)	\
-		((_pHTInfo)->ChnlOp > CHNLOP_NONE) ? true : false
-
-/*
-union ht_capability {
-	u16	ShortData;
-	u8	CharData[2];
-	struct
-	{
-		u16	AdvCoding:1;
-		u16	ChlWidth:1;
-		u16	MimoPwrSave:2;
-		u16	GreenField:1;
-		u16	ShortGI20Mhz:1;
-		u16	ShortGI40Mhz:1;
-		u16	STBC:1;
-		u16	BeamForm:1;
-		u16	DelayBA:1;
-		u16	MaxAMSDUSize:1;
-		u16	DssCCk:1;
-		u16	PSMP:1;
-		u16	Rsvd:3;
-	}Field;
-};
-
-union ht_capability_macpara {
-	u8	ShortData;
-	u8	CharData[1];
-	struct
-	{
-		u8	MaxRxAMPDU:2;
-		u8	MPDUDensity:2;
-		u8	Rsvd:4;
-	}Field;
-};
-*/
-
 enum ht_action {
 	ACT_RECOMMAND_WIDTH		= 0,
 	ACT_MIMO_PWR_SAVE		= 1,
@@ -380,16 +343,6 @@ struct false_alarm_stats {
 extern u8 MCS_FILTER_ALL[16];
 extern u8 MCS_FILTER_1SS[16];
 
-#define PICK_RATE(_nLegacyRate, _nMcsRate)	\
-		((_nMcsRate == 0) ? (_nLegacyRate&0x7f) : (_nMcsRate))
-#define	LEGACY_WIRELESS_MODE	IEEE_MODE_MASK
-
-#define CURRENT_RATE(WirelessMode, LegacyRate, HTRate)	\
-			((WirelessMode & (LEGACY_WIRELESS_MODE)) != 0) ? \
-			(LegacyRate) : (PICK_RATE(LegacyRate, HTRate))
-
-
-
 #define	RATE_ADPT_1SS_MASK		0xFF
 #define	RATE_ADPT_2SS_MASK		0xF0
 #define	RATE_ADPT_MCS32_MASK		0x01
diff --git a/drivers/staging/rtl8192e/rtl819x_HTProc.c b/drivers/staging/rtl8192e/rtl819x_HTProc.c
index 1ea426b..7f10311 100644
--- a/drivers/staging/rtl8192e/rtl819x_HTProc.c
+++ b/drivers/staging/rtl8192e/rtl819x_HTProc.c
@@ -117,160 +117,6 @@ void HTUpdateDefaultSetting(struct rtllib_device *ieee)
 	pHTInfo->RxReorderPendingTime = 30;
 }
 
-void HTDebugHTCapability(u8 *CapIE, u8 *TitleString)
-{
-
-	static u8	EWC11NHTCap[] = {0x00, 0x90, 0x4c, 0x33};
-	struct ht_capab_ele *pCapELE;
-
-	if (!memcmp(CapIE, EWC11NHTCap, sizeof(EWC11NHTCap))) {
-		RTLLIB_DEBUG(RTLLIB_DL_HT, "EWC IE in %s()\n", __func__);
-		pCapELE = (struct ht_capab_ele *)(&CapIE[4]);
-	} else
-		pCapELE = (struct ht_capab_ele *)(&CapIE[0]);
-
-	RTLLIB_DEBUG(RTLLIB_DL_HT, "<Log HT Capability>. Called by %s\n",
-		     TitleString);
-
-	RTLLIB_DEBUG(RTLLIB_DL_HT,  "\tSupported Channel Width = %s\n",
-		     (pCapELE->ChlWidth) ? "20MHz" : "20/40MHz");
-	RTLLIB_DEBUG(RTLLIB_DL_HT,  "\tSupport Short GI for 20M = %s\n",
-		     (pCapELE->ShortGI20Mhz) ? "YES" : "NO");
-	RTLLIB_DEBUG(RTLLIB_DL_HT,  "\tSupport Short GI for 40M = %s\n",
-		     (pCapELE->ShortGI40Mhz) ? "YES" : "NO");
-	RTLLIB_DEBUG(RTLLIB_DL_HT,  "\tSupport TX STBC = %s\n",
-		     (pCapELE->TxSTBC) ? "YES" : "NO");
-	RTLLIB_DEBUG(RTLLIB_DL_HT,  "\tMax AMSDU Size = %s\n",
-		     (pCapELE->MaxAMSDUSize) ? "3839" : "7935");
-	RTLLIB_DEBUG(RTLLIB_DL_HT,  "\tSupport CCK in 20/40 mode = %s\n",
-		     (pCapELE->DssCCk) ? "YES" : "NO");
-	RTLLIB_DEBUG(RTLLIB_DL_HT,  "\tMax AMPDU Factor = %d\n",
-		     pCapELE->MaxRxAMPDUFactor);
-	RTLLIB_DEBUG(RTLLIB_DL_HT,  "\tMPDU Density = %d\n",
-		     pCapELE->MPDUDensity);
-	RTLLIB_DEBUG(RTLLIB_DL_HT,  "\tMCS Rate Set = [%x][%x][%x][%x][%x]\n",
-		     pCapELE->MCS[0], pCapELE->MCS[1], pCapELE->MCS[2],
-		     pCapELE->MCS[3], pCapELE->MCS[4]);
-	return;
-
-}
-
-void HTDebugHTInfo(u8 *InfoIE, u8 *TitleString)
-{
-
-	static u8	EWC11NHTInfo[] = {0x00, 0x90, 0x4c, 0x34};
-	struct ht_info_ele *pHTInfoEle;
-
-	if (!memcmp(InfoIE, EWC11NHTInfo, sizeof(EWC11NHTInfo))) {
-		RTLLIB_DEBUG(RTLLIB_DL_HT, "EWC IE in %s()\n", __func__);
-		pHTInfoEle = (struct ht_info_ele *)(&InfoIE[4]);
-	} else
-		pHTInfoEle = (struct ht_info_ele *)(&InfoIE[0]);
-
-
-	RTLLIB_DEBUG(RTLLIB_DL_HT, "<Log HT Information Element>. "
-		     "Called by %s\n", TitleString);
-
-	RTLLIB_DEBUG(RTLLIB_DL_HT, "\tPrimary channel = %d\n",
-		     pHTInfoEle->ControlChl);
-	RTLLIB_DEBUG(RTLLIB_DL_HT, "\tSenondary channel =");
-	switch (pHTInfoEle->ExtChlOffset) {
-	case 0:
-		RTLLIB_DEBUG(RTLLIB_DL_HT, "Not Present\n");
-		break;
-	case 1:
-		RTLLIB_DEBUG(RTLLIB_DL_HT, "Upper channel\n");
-		break;
-	case 2:
-		RTLLIB_DEBUG(RTLLIB_DL_HT, "Reserved. Eooro!!!\n");
-		break;
-	case 3:
-		RTLLIB_DEBUG(RTLLIB_DL_HT, "Lower Channel\n");
-		break;
-	}
-	RTLLIB_DEBUG(RTLLIB_DL_HT, "\tRecommended channel width = %s\n",
-		     (pHTInfoEle->RecommemdedTxWidth) ? "20Mhz" : "40Mhz");
-
-	RTLLIB_DEBUG(RTLLIB_DL_HT, "\tOperation mode for protection = ");
-	switch (pHTInfoEle->OptMode) {
-	case 0:
-		RTLLIB_DEBUG(RTLLIB_DL_HT, "No Protection\n");
-		break;
-	case 1:
-		RTLLIB_DEBUG(RTLLIB_DL_HT, "HT non-member protection mode\n");
-		break;
-	case 2:
-		RTLLIB_DEBUG(RTLLIB_DL_HT, "Suggest to open protection\n");
-		break;
-	case 3:
-		RTLLIB_DEBUG(RTLLIB_DL_HT, "HT mixed mode\n");
-		break;
-	}
-
-	RTLLIB_DEBUG(RTLLIB_DL_HT, "\tBasic MCS Rate Set = [%x][%x][%x][%x]"
-		     "[%x]\n", pHTInfoEle->BasicMSC[0], pHTInfoEle->BasicMSC[1],
-		     pHTInfoEle->BasicMSC[2], pHTInfoEle->BasicMSC[3],
-		     pHTInfoEle->BasicMSC[4]);
-}
-
-static bool IsHTHalfNmode40Bandwidth(struct rtllib_device *ieee)
-{
-	bool			retValue = false;
-	struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
-
-	if (pHTInfo->bCurrentHTSupport == false)
-		retValue = false;
-	else if (pHTInfo->bRegBW40MHz == false)
-		retValue = false;
-	else if (!ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev))
-		retValue = false;
-	else if (((struct ht_capab_ele *)(pHTInfo->PeerHTCapBuf))->ChlWidth)
-		retValue = true;
-	else
-		retValue = false;
-
-	return retValue;
-}
-
-static bool IsHTHalfNmodeSGI(struct rtllib_device *ieee, bool is40MHz)
-{
-	bool			retValue = false;
-	struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
-
-	if (pHTInfo->bCurrentHTSupport == false)
-		retValue = false;
-	else if (!ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev))
-		retValue = false;
-	else if (is40MHz) {
-		if (((struct ht_capab_ele *)
-		    (pHTInfo->PeerHTCapBuf))->ShortGI40Mhz)
-			retValue = true;
-		else
-			retValue = false;
-	} else {
-		if (((struct ht_capab_ele *)
-		   (pHTInfo->PeerHTCapBuf))->ShortGI20Mhz)
-			retValue = true;
-		else
-			retValue = false;
-	}
-
-	return retValue;
-}
-
-u16 HTHalfMcsToDataRate(struct rtllib_device *ieee, u8 nMcsRate)
-{
-
-	u8	is40MHz;
-	u8	isShortGI;
-
-	is40MHz  =  (IsHTHalfNmode40Bandwidth(ieee)) ? 1 : 0;
-	isShortGI = (IsHTHalfNmodeSGI(ieee, is40MHz)) ? 1 : 0;
-
-	return MCS_DATA_RATE[is40MHz][isShortGI][(nMcsRate & 0x7f)];
-}
-
-
 u16 HTMcsToDataRate(struct rtllib_device *ieee, u8 nMcsRate)
 {
 	struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
@@ -289,25 +135,22 @@ u16  TxCountToDataRate(struct rtllib_device *ieee, u8 nDataRate)
 	u8	is40MHz = 0;
 	u8	isShortGI = 0;
 
-	if (nDataRate < 12) {
+	if (nDataRate < 12)
 		return CCKOFDMRate[nDataRate];
-	} else {
-		if (nDataRate >= 0x10 && nDataRate <= 0x1f) {
-			is40MHz = 0;
-			isShortGI = 0;
-		} else if (nDataRate >= 0x20  && nDataRate <= 0x2f) {
-			is40MHz = 1;
-			isShortGI = 0;
-
-		} else if (nDataRate >= 0x30  && nDataRate <= 0x3f) {
-			is40MHz = 0;
-			isShortGI = 1;
-		} else if (nDataRate >= 0x40  && nDataRate <= 0x4f) {
-			is40MHz = 1;
-			isShortGI = 1;
-		}
-		return MCS_DATA_RATE[is40MHz][isShortGI][nDataRate&0xf];
+	if (nDataRate >= 0x10 && nDataRate <= 0x1f) {
+		is40MHz = 0;
+		isShortGI = 0;
+	} else if (nDataRate >= 0x20  && nDataRate <= 0x2f) {
+		is40MHz = 1;
+		isShortGI = 0;
+	} else if (nDataRate >= 0x30  && nDataRate <= 0x3f) {
+		is40MHz = 0;
+		isShortGI = 1;
+	} else if (nDataRate >= 0x40  && nDataRate <= 0x4f) {
+		is40MHz = 1;
+		isShortGI = 1;
 	}
+	return MCS_DATA_RATE[is40MHz][isShortGI][nDataRate&0xf];
 }
 
 bool IsHTHalfNmodeAPs(struct rtllib_device *ieee)
@@ -386,9 +229,7 @@ static u8 HTIOTActIsDisableMCS14(struct rtllib_device *ieee, u8 *PeerMacAddr)
 
 static bool HTIOTActIsDisableMCS15(struct rtllib_device *ieee)
 {
-	bool retValue = false;
-
-	return retValue;
+	return false;
 }
 
 static bool HTIOTActIsDisableMCSTwoSpatialStream(struct rtllib_device *ieee)
@@ -450,8 +291,8 @@ void HTConstructCapabilityElement(struct rtllib_device *ieee, u8 *posHTCap,
 	struct ht_capab_ele *pCapELE = NULL;
 
 	if ((posHTCap == NULL) || (pHT == NULL)) {
-		RTLLIB_DEBUG(RTLLIB_DL_ERR, "posHTCap or pHTInfo can't be "
-			     "null in HTConstructCapabilityElement()\n");
+		RTLLIB_DEBUG(RTLLIB_DL_ERR,
+			     "posHTCap or pHTInfo can't be null in HTConstructCapabilityElement()\n");
 		return;
 	}
 	memset(posHTCap, 0, *len);
@@ -487,9 +328,9 @@ void HTConstructCapabilityElement(struct rtllib_device *ieee, u8 *posHTCap,
 	pCapELE->LSigTxopProtect = 0;
 
 
-	RTLLIB_DEBUG(RTLLIB_DL_HT, "TX HT cap/info ele BW=%d MaxAMSDUSize:%d "
-		     "DssCCk:%d\n", pCapELE->ChlWidth, pCapELE->MaxAMSDUSize,
-		     pCapELE->DssCCk);
+	RTLLIB_DEBUG(RTLLIB_DL_HT,
+		     "TX HT cap/info ele BW=%d MaxAMSDUSize:%d DssCCk:%d\n",
+		     pCapELE->ChlWidth, pCapELE->MaxAMSDUSize, pCapELE->DssCCk);
 
 	if (IsEncrypt) {
 		pCapELE->MPDUDensity	= 7;
@@ -532,8 +373,8 @@ void HTConstructInfoElement(struct rtllib_device *ieee, u8 *posHTInfo,
 	struct ht_info_ele *pHTInfoEle = (struct ht_info_ele *)posHTInfo;
 
 	if ((posHTInfo == NULL) || (pHTInfoEle == NULL)) {
-		RTLLIB_DEBUG(RTLLIB_DL_ERR, "posHTInfo or pHTInfoEle can't be "
-			     "null in HTConstructInfoElement()\n");
+		RTLLIB_DEBUG(RTLLIB_DL_ERR,
+			     "posHTInfo or pHTInfoEle can't be null in HTConstructInfoElement()\n");
 		return;
 	}
 
@@ -572,8 +413,8 @@ void HTConstructRT2RTAggElement(struct rtllib_device *ieee, u8 *posRT2RTAgg,
 				u8 *len)
 {
 	if (posRT2RTAgg == NULL) {
-		RTLLIB_DEBUG(RTLLIB_DL_ERR, "posRT2RTAgg can't be null in "
-			     "HTConstructRT2RTAggElement()\n");
+		RTLLIB_DEBUG(RTLLIB_DL_ERR,
+			     "posRT2RTAgg can't be null in HTConstructRT2RTAggElement()\n");
 		return;
 	}
 	memset(posRT2RTAgg, 0, *len);
@@ -596,8 +437,8 @@ static u8 HT_PickMCSRate(struct rtllib_device *ieee, u8 *pOperateMCS)
 	u8 i;
 
 	if (pOperateMCS == NULL) {
-		RTLLIB_DEBUG(RTLLIB_DL_ERR, "pOperateMCS can't be null"
-			     " in HT_PickMCSRate()\n");
+		RTLLIB_DEBUG(RTLLIB_DL_ERR,
+			     "pOperateMCS can't be null in HT_PickMCSRate()\n");
 		return false;
 	}
 
@@ -631,8 +472,8 @@ u8 HTGetHighestMCSRate(struct rtllib_device *ieee, u8 *pMCSRateSet,
 	u8		availableMcsRate[16];
 
 	if (pMCSRateSet == NULL || pMCSFilter == NULL) {
-		RTLLIB_DEBUG(RTLLIB_DL_ERR, "pMCSRateSet or pMCSFilter can't "
-			     "be null in HTGetHighestMCSRate()\n");
+		RTLLIB_DEBUG(RTLLIB_DL_ERR,
+			     "pMCSRateSet or pMCSFilter can't be null in HTGetHighestMCSRate()\n");
 		return false;
 	}
 	for (i = 0; i < 16; i++)
@@ -654,7 +495,7 @@ u8 HTGetHighestMCSRate(struct rtllib_device *ieee, u8 *pMCSRateSet,
 					    HTMcsToDataRate(ieee, mcsRate))
 						mcsRate = (8*i+j);
 				}
-				bitMap = bitMap>>1;
+				bitMap >>= 1;
 			}
 		}
 	}
@@ -697,8 +538,8 @@ void HTOnAssocRsp(struct rtllib_device *ieee)
 	static u8 EWC11NHTInfo[] = {0x00, 0x90, 0x4c, 0x34};
 
 	if (pHTInfo->bCurrentHTSupport == false) {
-		RTLLIB_DEBUG(RTLLIB_DL_ERR, "<=== HTOnAssocRsp(): "
-			     "HT_DISABLE\n");
+		RTLLIB_DEBUG(RTLLIB_DL_ERR,
+			     "<=== HTOnAssocRsp(): HT_DISABLE\n");
 		return;
 	}
 	RTLLIB_DEBUG(RTLLIB_DL_HT, "===> HTOnAssocRsp_wq(): HT_ENABLE\n");
@@ -878,7 +719,8 @@ void HTResetSelfAndSavePeerSetting(struct rtllib_device *ieee,
 
 	RTLLIB_DEBUG(RTLLIB_DL_HT, "==============>%s()\n", __func__);
 	/* unmark bEnableHT flag here is the same reason why unmarked in
-	 * function rtllib_softmac_new_net. WB 2008.09.10*/
+	 * function rtllib_softmac_new_net. WB 2008.09.10
+	 */
 	if (pNetwork->bssht.bdSupportHT) {
 		pHTInfo->bCurrentHTSupport = true;
 		pHTInfo->ePeerHTSpecVer = pNetwork->bssht.bdHTSpecVer;
@@ -999,8 +841,8 @@ u8 HTCCheck(struct rtllib_device *ieee, u8 *pFrame)
 {
 	if (ieee->pHTInfo->bCurrentHTSupport) {
 		if ((IsQoSDataFrame(pFrame) && Frame_Order(pFrame)) == 1) {
-			RTLLIB_DEBUG(RTLLIB_DL_HT, "HT CONTROL FILED "
-				     "EXIST!!\n");
+			RTLLIB_DEBUG(RTLLIB_DL_HT,
+				     "HT CONTROL FILED EXIST!!\n");
 			return true;
 		}
 	}
diff --git a/drivers/staging/rtl8192e/rtl819x_Qos.h b/drivers/staging/rtl8192e/rtl819x_Qos.h
index 973342b..55ef7ec 100644
--- a/drivers/staging/rtl8192e/rtl819x_Qos.h
+++ b/drivers/staging/rtl8192e/rtl819x_Qos.h
@@ -19,8 +19,6 @@
 #ifndef __INC_QOS_TYPE_H
 #define __INC_QOS_TYPE_H
 
-#include "rtllib_endianfree.h"
-
 #define BIT0		    0x00000001
 #define BIT1		    0x00000002
 #define BIT2		    0x00000004
@@ -340,18 +338,6 @@ struct sta_qos {
 };
 
 #define QBSS_LOAD_SIZE				5
-#define GET_QBSS_LOAD_STA_COUNT(__pStart)	\
-		ReadEF2Byte(__pStart)
-#define SET_QBSS_LOAD_STA_COUNT(__pStart, __Value)	\
-		WriteEF2Byte(__pStart, __Value)
-#define GET_QBSS_LOAD_CHNL_UTILIZATION(__pStart)	\
-		ReadEF1Byte((u8 *)(__pStart) + 2)
-#define SET_QBSS_LOAD_CHNL_UTILIZATION(__pStart, __Value)	\
-		WriteEF1Byte((u8 *)(__pStart) + 2, __Value)
-#define GET_QBSS_LOAD_AVAILABLE_CAPACITY(__pStart)	\
-		ReadEF2Byte((u8 *)(__pStart) + 3)
-#define SET_QBSS_LOAD_AVAILABLE_CAPACITY(__pStart, __Value) \
-		WriteEF2Byte((u8 *)(__pStart) + 3, __Value)
 
 struct bss_qos {
 	QOS_MODE bdQoSMode;
@@ -367,10 +353,6 @@ struct bss_qos {
 	bool bQBssLoadValid;
 };
 
-#define sQoSCtlLng	2
-#define QOS_CTRL_LEN(_QosMode)	((_QosMode > QOS_DISABLE) ? sQoSCtlLng : 0)
-
-
 #define IsACValid(ac)		((ac >= 0 && ac <= 7) ? true : false)
 
 
diff --git a/drivers/staging/rtl8192e/rtl819x_TSProc.c b/drivers/staging/rtl8192e/rtl819x_TSProc.c
index 294847d..7d77d05 100644
--- a/drivers/staging/rtl8192e/rtl819x_TSProc.c
+++ b/drivers/staging/rtl8192e/rtl819x_TSProc.c
@@ -58,9 +58,9 @@ static void RxPktPendingTimeout(unsigned long data)
 					pRxTs->RxIndicateSeq =
 					      (pRxTs->RxIndicateSeq + 1) % 4096;
 
-				RTLLIB_DEBUG(RTLLIB_DL_REORDER, "%s(): Indicate"
-					     " SeqNum: %d\n", __func__,
-					     pReorderEntry->SeqNum);
+				RTLLIB_DEBUG(RTLLIB_DL_REORDER,
+					     "%s(): Indicate SeqNum: %d\n",
+					     __func__, pReorderEntry->SeqNum);
 				ieee->stats_IndicateArray[index] =
 							 pReorderEntry->prxb;
 				index++;
@@ -78,8 +78,8 @@ static void RxPktPendingTimeout(unsigned long data)
 		pRxTs->RxTimeoutIndicateSeq = 0xffff;
 
 		if (index > REORDER_WIN_SIZE) {
-			RTLLIB_DEBUG(RTLLIB_DL_ERR, "RxReorderIndicatePacket():"
-				     " Rx Reorder struct buffer full!!\n");
+			RTLLIB_DEBUG(RTLLIB_DL_ERR,
+				     "RxReorderIndicatePacket(): Rx Reorder struct buffer full!!\n");
 			spin_unlock_irqrestore(&(ieee->reorder_spinlock),
 					       flags);
 			return;
@@ -91,7 +91,7 @@ static void RxPktPendingTimeout(unsigned long data)
 	if (bPktInBuf && (pRxTs->RxTimeoutIndicateSeq == 0xffff)) {
 		pRxTs->RxTimeoutIndicateSeq = pRxTs->RxIndicateSeq;
 		mod_timer(&pRxTs->RxPktPendingTimer,  jiffies +
-			  MSECS(ieee->pHTInfo->RxReorderPendingTime));
+			  msecs_to_jiffies(ieee->pHTInfo->RxReorderPendingTime));
 	}
 	spin_unlock_irqrestore(&(ieee->reorder_spinlock), flags);
 }
@@ -104,8 +104,8 @@ static void TsAddBaProcess(unsigned long data)
 				     TxTsRecord[num]);
 
 	TsInitAddBA(ieee, pTxTs, BA_POLICY_IMMEDIATE, false);
-	RTLLIB_DEBUG(RTLLIB_DL_BA, "TsAddBaProcess(): ADDBA Req is "
-		     "started!!\n");
+	RTLLIB_DEBUG(RTLLIB_DL_BA,
+		     "TsAddBaProcess(): ADDBA Req is started!!\n");
 }
 
 static void ResetTsCommonInfo(struct ts_common_info *pTsCommonInfo)
@@ -223,7 +223,7 @@ static void AdmitTS(struct rtllib_device *ieee,
 
 	if (InactTime != 0)
 		mod_timer(&pTsCommonInfo->InactTimer, jiffies +
-			  MSECS(InactTime));
+			  msecs_to_jiffies(InactTime));
 }
 
 static struct ts_common_info *SearchAdmitTRStream(struct rtllib_device *ieee,
@@ -311,18 +311,24 @@ bool GetTs(struct rtllib_device *ieee, struct ts_common_info **ppTS,
 	   u8 *Addr, u8 TID, enum tr_select TxRxSelect, bool bAddNewTs)
 {
 	u8	UP = 0;
+	union tspec_body TSpec;
+	union qos_tsinfo *pTSInfo = &TSpec.f.TSInfo;
+	struct list_head *pUnusedList;
+	struct list_head *pAddmitList;
+	enum direction_value Dir;
 
 	if (is_multicast_ether_addr(Addr)) {
-		RTLLIB_DEBUG(RTLLIB_DL_ERR, "ERR! get TS for Broadcast or "
-			     "Multicast\n");
+		RTLLIB_DEBUG(RTLLIB_DL_ERR,
+			     "ERR! get TS for Broadcast or Multicast\n");
 		return false;
 	}
 	if (ieee->current_network.qos_data.supported == 0) {
 		UP = 0;
 	} else {
 		if (!IsACValid(TID)) {
-			RTLLIB_DEBUG(RTLLIB_DL_ERR, "ERR! in %s(), TID(%d) is "
-				     "not valid\n", __func__, TID);
+			RTLLIB_DEBUG(RTLLIB_DL_ERR,
+				     "ERR! in %s(), TID(%d) is not valid\n",
+				     __func__, TID);
 			return false;
 		}
 
@@ -347,77 +353,70 @@ bool GetTs(struct rtllib_device *ieee, struct ts_common_info **ppTS,
 	}
 
 	*ppTS = SearchAdmitTRStream(ieee, Addr, UP, TxRxSelect);
-	if (*ppTS != NULL) {
+	if (*ppTS != NULL)
 		return true;
-	} else {
-		if (!bAddNewTs) {
-			RTLLIB_DEBUG(RTLLIB_DL_TS, "add new TS failed"
-				     "(tid:%d)\n", UP);
-			return false;
-		} else {
-			union tspec_body TSpec;
-			union qos_tsinfo *pTSInfo = &TSpec.f.TSInfo;
-			struct list_head *pUnusedList =
-				(TxRxSelect == TX_DIR) ?
+
+	if (!bAddNewTs) {
+		RTLLIB_DEBUG(RTLLIB_DL_TS,
+			     "add new TS failed(tid:%d)\n", UP);
+		return false;
+	}
+
+	pUnusedList = (TxRxSelect == TX_DIR) ?
 				(&ieee->Tx_TS_Unused_List) :
 				(&ieee->Rx_TS_Unused_List);
 
-			struct list_head *pAddmitList =
-				(TxRxSelect == TX_DIR) ?
+	pAddmitList = (TxRxSelect == TX_DIR) ?
 				(&ieee->Tx_TS_Admit_List) :
 				(&ieee->Rx_TS_Admit_List);
 
-			enum direction_value Dir =
-				 (ieee->iw_mode == IW_MODE_MASTER) ?
-				 ((TxRxSelect == TX_DIR) ? DIR_DOWN : DIR_UP) :
-				 ((TxRxSelect == TX_DIR) ? DIR_UP : DIR_DOWN);
-			RTLLIB_DEBUG(RTLLIB_DL_TS, "to add Ts\n");
-			if (!list_empty(pUnusedList)) {
-				(*ppTS) = list_entry(pUnusedList->next,
-					  struct ts_common_info, List);
-				list_del_init(&(*ppTS)->List);
-				if (TxRxSelect == TX_DIR) {
-					struct tx_ts_record *tmp =
-						container_of(*ppTS,
-						struct tx_ts_record,
-						TsCommonInfo);
-					ResetTxTsEntry(tmp);
-				} else {
-					struct rx_ts_record *tmp =
-						 container_of(*ppTS,
-						 struct rx_ts_record,
-						 TsCommonInfo);
-					ResetRxTsEntry(tmp);
-				}
-
-				RTLLIB_DEBUG(RTLLIB_DL_TS, "to init current TS"
-					     ", UP:%d, Dir:%d, addr: %pM"
-					     " ppTs=%p\n", UP, Dir,
-					      Addr, *ppTS);
-				pTSInfo->field.ucTrafficType = 0;
-				pTSInfo->field.ucTSID = UP;
-				pTSInfo->field.ucDirection = Dir;
-				pTSInfo->field.ucAccessPolicy = 1;
-				pTSInfo->field.ucAggregation = 0;
-				pTSInfo->field.ucPSB = 0;
-				pTSInfo->field.ucUP = UP;
-				pTSInfo->field.ucTSInfoAckPolicy = 0;
-				pTSInfo->field.ucSchedule = 0;
-
-				MakeTSEntry(*ppTS, Addr, &TSpec, NULL, 0, 0);
-				AdmitTS(ieee, *ppTS, 0);
-				list_add_tail(&((*ppTS)->List), pAddmitList);
-
-				return true;
-			} else {
-				RTLLIB_DEBUG(RTLLIB_DL_ERR, "ERR!!in function "
-					     "%s() There is not enough dir=%d"
-					     "(0=up down=1) TS record to be "
-					     "used!!", __func__, Dir);
-				return false;
-			}
+	Dir = (ieee->iw_mode == IW_MODE_MASTER) ?
+				((TxRxSelect == TX_DIR) ? DIR_DOWN : DIR_UP) :
+				((TxRxSelect == TX_DIR) ? DIR_UP : DIR_DOWN);
+
+	RTLLIB_DEBUG(RTLLIB_DL_TS, "to add Ts\n");
+	if (!list_empty(pUnusedList)) {
+		(*ppTS) = list_entry(pUnusedList->next,
+			  struct ts_common_info, List);
+		list_del_init(&(*ppTS)->List);
+		if (TxRxSelect == TX_DIR) {
+			struct tx_ts_record *tmp =
+				container_of(*ppTS,
+				struct tx_ts_record,
+				TsCommonInfo);
+			ResetTxTsEntry(tmp);
+		} else {
+			struct rx_ts_record *tmp =
+				 container_of(*ppTS,
+				 struct rx_ts_record,
+				 TsCommonInfo);
+			ResetRxTsEntry(tmp);
 		}
+
+		RTLLIB_DEBUG(RTLLIB_DL_TS,
+			     "to init current TS, UP:%d, Dir:%d, addr: %pM ppTs=%p\n",
+			     UP, Dir, Addr, *ppTS);
+		pTSInfo->field.ucTrafficType = 0;
+		pTSInfo->field.ucTSID = UP;
+		pTSInfo->field.ucDirection = Dir;
+		pTSInfo->field.ucAccessPolicy = 1;
+		pTSInfo->field.ucAggregation = 0;
+		pTSInfo->field.ucPSB = 0;
+		pTSInfo->field.ucUP = UP;
+		pTSInfo->field.ucTSInfoAckPolicy = 0;
+		pTSInfo->field.ucSchedule = 0;
+
+		MakeTSEntry(*ppTS, Addr, &TSpec, NULL, 0, 0);
+		AdmitTS(ieee, *ppTS, 0);
+		list_add_tail(&((*ppTS)->List), pAddmitList);
+
+		return true;
 	}
+
+	RTLLIB_DEBUG(RTLLIB_DL_ERR,
+		     "ERR!!in function %s() There is not enough dir=%d(0=up down=1) TS record to be used!!",
+		     __func__, Dir);
+	return false;
 }
 
 static void RemoveTsEntry(struct rtllib_device *ieee, struct ts_common_info *pTs,
@@ -438,8 +437,8 @@ static void RemoveTsEntry(struct rtllib_device *ieee, struct ts_common_info *pTs
 			pRxReorderEntry = (struct rx_reorder_entry *)
 					list_entry(pRxTS->RxPendingPktList.prev,
 					struct rx_reorder_entry, List);
-			RTLLIB_DEBUG(RTLLIB_DL_REORDER, "%s(): Delete SeqNum "
-				     "%d!\n", __func__,
+			RTLLIB_DEBUG(RTLLIB_DL_REORDER,
+				     "%s(): Delete SeqNum %d!\n", __func__,
 				     pRxReorderEntry->SeqNum);
 			list_del_init(&pRxReorderEntry->List);
 			{
@@ -467,7 +466,7 @@ void RemovePeerTS(struct rtllib_device *ieee, u8 *Addr)
 {
 	struct ts_common_info *pTS, *pTmpTS;
 
-	printk(KERN_INFO "===========>RemovePeerTS, %pM\n", Addr);
+	netdev_info(ieee->dev, "===========>RemovePeerTS, %pM\n", Addr);
 
 	list_for_each_entry_safe(pTS, pTmpTS, &ieee->Tx_TS_Pending_List, List) {
 		if (memcmp(pTS->Addr, Addr, 6) == 0) {
@@ -479,7 +478,8 @@ void RemovePeerTS(struct rtllib_device *ieee, u8 *Addr)
 
 	list_for_each_entry_safe(pTS, pTmpTS, &ieee->Tx_TS_Admit_List, List) {
 		if (memcmp(pTS->Addr, Addr, 6) == 0) {
-			printk(KERN_INFO "====>remove Tx_TS_admin_list\n");
+			netdev_info(ieee->dev,
+				    "====>remove Tx_TS_admin_list\n");
 			RemoveTsEntry(ieee, pTS, TX_DIR);
 			list_del_init(&pTS->List);
 			list_add_tail(&pTS->List, &ieee->Tx_TS_Unused_List);
@@ -539,13 +539,13 @@ void TsStartAddBaProcess(struct rtllib_device *ieee, struct tx_ts_record *pTxTS)
 		pTxTS->bAddBaReqInProgress = true;
 
 		if (pTxTS->bAddBaReqDelayed) {
-			RTLLIB_DEBUG(RTLLIB_DL_BA, "TsStartAddBaProcess(): "
-				     "Delayed Start ADDBA after 60 sec!!\n");
+			RTLLIB_DEBUG(RTLLIB_DL_BA,
+				     "TsStartAddBaProcess(): Delayed Start ADDBA after 60 sec!!\n");
 			mod_timer(&pTxTS->TsAddBaTimer, jiffies +
-				  MSECS(TS_ADDBA_DELAY));
+				  msecs_to_jiffies(TS_ADDBA_DELAY));
 		} else {
-			RTLLIB_DEBUG(RTLLIB_DL_BA, "TsStartAddBaProcess(): "
-				     "Immediately Start ADDBA now!!\n");
+			RTLLIB_DEBUG(RTLLIB_DL_BA,
+				     "TsStartAddBaProcess(): Immediately Start ADDBA now!!\n");
 			mod_timer(&pTxTS->TsAddBaTimer, jiffies+10);
 		}
 	} else
diff --git a/drivers/staging/rtl8192e/rtllib.h b/drivers/staging/rtl8192e/rtllib.h
index cef2dc2..3c8b708 100644
--- a/drivers/staging/rtl8192e/rtllib.h
+++ b/drivers/staging/rtl8192e/rtllib.h
@@ -66,25 +66,8 @@
 #define IW_CUSTOM_MAX	256	/* In bytes */
 #endif
 
-#ifndef container_of
-/**
- * container_of - cast a member of a structure out to the containing structure
- *
- * @ptr:	the pointer to the member.
- * @type:       the type of the container struct this is embedded in.
- * @member:     the name of the member within the struct.
- *
- */
-#define container_of(ptr, type, member) ({		      \
-	const typeof(((type *)0)->member)*__mptr = (ptr);    \
-	(type *)((char *)__mptr - offsetof(type, member)); })
-#endif
-
 #define skb_tail_pointer_rsl(skb) skb_tail_pointer(skb)
 
-#define EXPORT_SYMBOL_RSL(x) EXPORT_SYMBOL(x)
-
-
 #define queue_delayed_work_rsl(x, y, z) queue_delayed_work(x, y, z)
 #define INIT_DELAYED_WORK_RSL(x, y, z) INIT_DELAYED_WORK(x, y)
 
@@ -482,9 +465,6 @@ enum rt_op_mode {
 #define	IEEE_CRYPT_ALG_NAME_LEN			16
 
 #define MAX_IE_LEN  0xff
-#define RT_ASSERT_RET(_Exp) do {} while (0)
-#define RT_ASSERT_RET_VALUE(_Exp, Ret)		\
-	do {} while (0)
 
 struct ieee_param {
 	u32 cmd;
@@ -525,17 +505,17 @@ struct ieee_param {
 #define IW_QUAL_NOISE_UPDATED  0x4
 #endif
 
-#define MSECS(t) msecs_to_jiffies(t)
 #define msleep_interruptible_rsl  msleep_interruptible
 
 #define RTLLIB_DATA_LEN		2304
 /* Maximum size for the MA-UNITDATA primitive, 802.11 standard section
-   6.2.1.1.2.
-
-   The figure in section 7.1.2 suggests a body size of up to 2312
-   bytes is allowed, which is a bit confusing, I suspect this
-   represents the 2304 bytes of real data, plus a possible 8 bytes of
-   WEP IV and ICV. (this interpretation suggested by Ramiro Barreiro) */
+ * 6.2.1.1.2.
+ *
+ * The figure in section 7.1.2 suggests a body size of up to 2312
+ * bytes is allowed, which is a bit confusing, I suspect this
+ * represents the 2304 bytes of real data, plus a possible 8 bytes of
+ * WEP IV and ICV. (this interpretation suggested by Ramiro Barreiro)
+ */
 #define RTLLIB_1ADDR_LEN 10
 #define RTLLIB_2ADDR_LEN 16
 #define RTLLIB_3ADDR_LEN 24
@@ -711,20 +691,13 @@ do {								\
 #define RTLLIB_DEBUG_DATA(level, data, datalen)	\
 	do {							\
 		if ((rtllib_debug_level & (level)) == (level)) {	\
-			int i;					\
-			u8 *pdata = (u8 *)data;			\
 			printk(KERN_DEBUG "rtllib: %s()\n", __func__);	\
-			for (i = 0; i < (int)(datalen); i++)	{	\
-				printk("%2.2x ", pdata[i]);		\
-				if ((i+1)%16 == 0)			\
-					printk("\n");	\
-			}				\
-			printk("\n");			\
+			print_hex_dump_bytes(KERN_DEBUG, DUMP_PREFIX_NONE, \
+					     data, datalen); \
 		}					\
 	} while (0)
 
-/*
- * To use the debug system;
+/* To use the debug system;
  *
  * If you are defining a new debug classification, simply add it to the #define
  * list here in the form of:
@@ -743,8 +716,6 @@ do {								\
  * % cat /proc/net/ipw/debug_level
  *
  * you simply need to add your entry to the ipw_debug_levels array.
- *
- *
  */
 
 #define RTLLIB_DL_INFO	  (1<<0)
@@ -769,8 +740,8 @@ do {								\
 #define RTLLIB_DL_TRACE	   (1<<29)
 #define RTLLIB_DL_DATA	   (1<<30)
 #define RTLLIB_DL_ERR	   (1<<31)
-#define RTLLIB_ERROR(f, a...) printk(KERN_ERR "rtllib: " f, ## a)
-#define RTLLIB_WARNING(f, a...) printk(KERN_WARNING "rtllib: " f, ## a)
+#define RTLLIB_ERROR(f, a...) pr_err("rtllib: " f, ## a)
+#define RTLLIB_WARNING(f, a...) pr_warn("rtllib: " f, ## a)
 #define RTLLIB_DEBUG_INFO(f, a...)   RTLLIB_DEBUG(RTLLIB_DL_INFO, f, ## a)
 
 #define RTLLIB_DEBUG_WX(f, a...)     RTLLIB_DEBUG(RTLLIB_DL_WX, f, ## a)
@@ -784,26 +755,6 @@ do {								\
 #define RTLLIB_DEBUG_RX(f, a...)  RTLLIB_DEBUG(RTLLIB_DL_RX, f, ## a)
 #define RTLLIB_DEBUG_QOS(f, a...)  RTLLIB_DEBUG(RTLLIB_DL_QOS, f, ## a)
 
-/* Added by Annie, 2005-11-22. */
-#define MAX_STR_LEN     64
-/* I want to see ASCII 33 to 126 only. Otherwise, I print '?'. */
-#define PRINTABLE(_ch)  (_ch > '!' && _ch < '~')
-#define RTLLIB_PRINT_STR(_Comp, _TitleString, _Ptr, _Len)		\
-	if ((_Comp) & level) {					       \
-		int	     __i;				    \
-		u8  struct buffer[MAX_STR_LEN];				\
-		int length = (_Len < MAX_STR_LEN) ? _Len : (MAX_STR_LEN-1) ;\
-		memset(struct buffer, 0, MAX_STR_LEN);		\
-		memcpy(struct buffer, (u8 *)_Ptr, length);		\
-		for (__i = 0; __i < MAX_STR_LEN; __i++) {		\
-			if (!PRINTABLE(struct buffer[__i]))		\
-				struct buffer[__i] = '?';		\
-		}							\
-		struct buffer[length] = '\0';				\
-		printk(KERN_INFO "Rtl819x: ");				\
-		printk(_TitleString);					\
-		printk(": %d, <%s>\n", _Len, struct buffer);		\
-	}
 #ifndef ETH_P_PAE
 #define ETH_P_PAE 0x888E /* Port Access Entity (IEEE 802.1X) */
 #define ETH_P_IP	0x0800		/* Internet Protocol packet	*/
@@ -1022,7 +973,8 @@ struct rtllib_rx_stats {
 /* IEEE 802.11 requires that STA supports concurrent reception of at least
  * three fragmented frames. This define can be increased to support more
  * concurrent frames, but it should be noted that each entry can consume about
- * 2 kB of RAM and increasing cache size will slow down frame reassembly. */
+ * 2 kB of RAM and increasing cache size will slow down frame reassembly.
+ */
 #define RTLLIB_FRAG_CACHE_LEN 4
 
 struct rtllib_frag_entry {
@@ -1100,16 +1052,15 @@ struct rtllib_security {
 } __packed;
 
 
-/*
- 802.11 data frame from AP
-      ,-------------------------------------------------------------------.
-Bytes |  2   |  2   |    6    |    6    |    6    |  2   | 0..2312 |   4  |
-      |------|------|---------|---------|---------|------|---------|------|
-Desc. | ctrl | dura |  DA/RA  |   TA    |    SA   | Sequ |  frame  |  fcs |
-      |      | tion | (BSSID) |	 |	 | ence |  data   |      |
-      `-------------------------------------------------------------------'
-Total: 28-2340 bytes
-*/
+/* 802.11 data frame from AP
+ *       ,-------------------------------------------------------------------.
+ * Bytes |  2   |  2   |    6    |    6    |    6    |  2   | 0..2312 |   4  |
+ *       |------|------|---------|---------|---------|------|---------|------|
+ * Desc. | ctrl | dura |  DA/RA  |   TA    |    SA   | Sequ |  frame  |  fcs |
+ *       |      | tion | (BSSID) |         |         | ence |  data   |      |
+ *       `-------------------------------------------------------------------'
+ * Total: 28-2340 bytes
+ */
 
 /* Management Frame Information Element Types */
 enum rtllib_mfie {
@@ -1147,7 +1098,8 @@ enum rtllib_mfie {
 
 /* Minimal header; can be used for passing 802.11 frames with sufficient
  * information to determine what type of underlying data type is actually
- * stored in the data. */
+ * stored in the data.
+ */
 struct rtllib_pspoll_hdr {
 	__le16 frame_ctl;
 	__le16 aid;
@@ -1257,7 +1209,8 @@ struct rtllib_probe_response {
 	__le16 beacon_interval;
 	__le16 capability;
 	/* SSID, supported rates, FH params, DS params,
-	 * CF params, IBSS params, TIM (if beacon), RSN */
+	 * CF params, IBSS params, TIM (if beacon), RSN
+	 */
 	struct rtllib_info_element info_element[0];
 } __packed;
 
@@ -1332,7 +1285,8 @@ union frameqos {
 /* MAX_RATES_LENGTH needs to be 12.  The spec says 8, and many APs
  * only use 8, and then use extended rates for the remaining supported
  * rates.  Other APs, however, stick all of their supported rates on the
- * main rates information element... */
+ * main rates information element...
+ */
 #define MAX_RATES_LENGTH		  ((u8)12)
 #define MAX_RATES_EX_LENGTH	       ((u8)16)
 #define MAX_NETWORK_COUNT		  96
@@ -1519,22 +1473,21 @@ struct rtllib_info_element_hdr {
 	u8 len;
 } __packed;
 
-/*
- * These are the data types that can make up management packets
+/* These are the data types that can make up management packets
  *
-	u16 auth_algorithm;
-	u16 auth_sequence;
-	u16 beacon_interval;
-	u16 capability;
-	u8 current_ap[ETH_ALEN];
-	u16 listen_interval;
-	struct {
-		u16 association_id:14, reserved:2;
-	} __packed;
-	u32 time_stamp[2];
-	u16 reason;
-	u16 status;
-*/
+ * u16 auth_algorithm;
+ * u16 auth_sequence;
+ * u16 beacon_interval;
+ * u16 capability;
+ * u8 current_ap[ETH_ALEN];
+ * u16 listen_interval;
+ * struct {
+ *   u16 association_id:14, reserved:2;
+ * } __packed;
+ * u32 time_stamp[2];
+ * u16 reason;
+ * u16 status;
+ */
 
 #define RTLLIB_DEFAULT_TX_ESSID "Penguin"
 #define RTLLIB_DEFAULT_BASIC_RATE 2
@@ -1670,7 +1623,6 @@ struct rtllib_network {
 	struct list_head list;
 };
 
-#if 1
 enum rtllib_state {
 
 	/* the card is not linked at all */
@@ -1708,17 +1660,6 @@ enum rtllib_state {
 	 */
 	RTLLIB_LINKED_SCANNING,
 };
-#else
-enum rtllib_state {
-	RTLLIB_UNINITIALIZED = 0,
-	RTLLIB_INITIALIZED,
-	RTLLIB_ASSOCIATING,
-	RTLLIB_ASSOCIATED,
-	RTLLIB_AUTHENTICATING,
-	RTLLIB_AUTHENTICATED,
-	RTLLIB_SHUTDOWN
-};
-#endif
 
 #define DEFAULT_MAX_SCAN_AGE (15 * HZ)
 #define DEFAULT_FTS 2346
@@ -1736,11 +1677,6 @@ enum rtllib_state {
 #define RTLLIB_52GHZ_MAX_CHANNEL 165
 #define RTLLIB_52GHZ_CHANNELS (RTLLIB_52GHZ_MAX_CHANNEL - \
 				  RTLLIB_52GHZ_MIN_CHANNEL + 1)
-#ifndef eqMacAddr
-#define eqMacAddr(a, b)					\
-	(((a)[0] == (b)[0] && (a)[1] == (b)[1] && (a)[2] == (b)[2] &&	\
-	(a)[3] == (b)[3] && (a)[4] == (b)[4] && (a)[5] == (b)[5]) ? 1 : 0)
-#endif
 struct tx_pending {
 	int frag;
 	struct rtllib_txb *txb;
@@ -2149,14 +2085,16 @@ struct rtllib_device {
 	spinlock_t wpax_suitlist_lock;
 
 	int tx_headroom; /* Set to size of any additional room needed at front
-			  * of allocated Tx SKBs */
+			  * of allocated Tx SKBs
+			  */
 	u32 config;
 
 	/* WEP and other encryption related settings at the device level */
 	int open_wep; /* Set to 1 to allow unencrypted frames */
 	int auth_mode;
 	int reset_on_keychange; /* Set to 1 if the HW needs to be reset on
-				 * WEP key changes */
+				 * WEP key changes
+				 */
 
 	/* If the host performs {en,de}cryption, then set to 1 */
 	int host_encrypt;
@@ -2276,7 +2214,7 @@ struct rtllib_device {
 	short raw_tx;
 	/* used if IEEE_SOFTMAC_TX_QUEUE is set */
 	short queue_stop;
-	short scanning_continue ;
+	short scanning_continue;
 	short proto_started;
 	short proto_stoppping;
 
@@ -2426,7 +2364,7 @@ struct rtllib_device {
 	/* OK this is complementing to data_poll_hard_stop */
 	void (*data_hard_resume)(struct net_device *dev);
 
-	/* ask to the driver to retune the radio .
+	/* ask to the driver to retune the radio.
 	 * This function can sleep. the driver should ensure
 	 * the radio has been switched before return.
 	 */
@@ -2520,7 +2458,8 @@ struct rtllib_device {
 	void (*rtllib_rfkill_poll)(struct net_device *dev);
 
 	/* This must be the last item so that it points to the data
-	 * allocated beyond this structure by alloc_rtllib */
+	 * allocated beyond this structure by alloc_rtllib
+	 */
 	u8 priv[0];
 };
 
@@ -2549,7 +2488,8 @@ struct rtllib_device {
 
 /* The ieee802.11 stack will manage the netif queue
  * wake/stop for the driver, taking care of 802.11
- * fragmentation. See softmac.c for details. */
+ * fragmentation. See softmac.c for details.
+ */
 #define IEEE_SOFTMAC_TX_QUEUE (1<<7)
 
 /* Uses only the softmac_data_hard_start_xmit
@@ -2586,11 +2526,9 @@ static inline int rtllib_is_empty_essid(const char *essid, int essid_len)
 
 static inline int rtllib_is_valid_mode(struct rtllib_device *ieee, int mode)
 {
-	/*
-	 * It is possible for both access points and our device to support
+	/* It is possible for both access points and our device to support
 	 * combinations of modes, so as long as there is one valid combination
 	 * of ap/device supported modes, then return success
-	 *
 	 */
 	if ((mode & IEEE_A) &&
 	    (ieee->modulation & RTLLIB_OFDM_MODULATION) &&
@@ -2882,8 +2820,6 @@ extern int rtllib_wx_get_rts(struct rtllib_device *ieee,
 			     struct iw_request_info *info,
 			     union iwreq_data *wrqu, char *extra);
 #define MAX_RECEIVE_BUFFER_SIZE 9100
-extern void HTDebugHTCapability(u8 *CapIE, u8 *TitleString);
-extern void HTDebugHTInfo(u8 *InfoIE, u8 *TitleString);
 
 void HTSetConnectBwMode(struct rtllib_device *ieee,
 			enum ht_channel_width Bandwidth,
@@ -2906,11 +2842,10 @@ extern void HT_update_self_and_peer_setting(struct rtllib_device *ieee,
 extern u8 HTGetHighestMCSRate(struct rtllib_device *ieee, u8 *pMCSRateSet,
 			      u8 *pMCSFilter);
 extern u8 MCS_FILTER_ALL[];
-extern u16 MCS_DATA_RATE[2][2][77] ;
+extern u16 MCS_DATA_RATE[2][2][77];
 extern u8 HTCCheck(struct rtllib_device *ieee, u8 *pFrame);
 extern void HTResetIOTSetting(struct rt_hi_throughput *pHTInfo);
 extern bool IsHTHalfNmodeAPs(struct rtllib_device *ieee);
-extern u16 HTHalfMcsToDataRate(struct rtllib_device *ieee, u8 nMcsRate);
 extern u16 HTMcsToDataRate(struct rtllib_device *ieee, u8 nMcsRate);
 extern u16  TxCountToDataRate(struct rtllib_device *ieee, u8 nDataRate);
 extern int rtllib_rx_ADDBAReq(struct rtllib_device *ieee, struct sk_buff *skb);
diff --git a/drivers/staging/rtl8192e/rtllib_crypt.c b/drivers/staging/rtl8192e/rtllib_crypt.c
index 60c0ced..1e6ae9b 100644
--- a/drivers/staging/rtl8192e/rtllib_crypt.c
+++ b/drivers/staging/rtl8192e/rtllib_crypt.c
@@ -62,8 +62,9 @@ void rtllib_crypt_deinit_handler(unsigned long data)
 	spin_lock_irqsave(info->lock, flags);
 	rtllib_crypt_deinit_entries(info, 0);
 	if (!list_empty(&info->crypt_deinit_list)) {
-		printk(KERN_DEBUG "%s: entries remaining in delayed crypt "
-		       "deletion list\n", info->name);
+		printk(KERN_DEBUG
+		       "%s: entries remaining in delayed crypt deletion list\n",
+		       info->name);
 		info->crypt_deinit_timer.expires = jiffies + HZ;
 		add_timer(&info->crypt_deinit_timer);
 	}
@@ -86,7 +87,8 @@ void rtllib_crypt_delayed_deinit(struct lib80211_crypt_info *info,
 
 	/* must not run ops->deinit() while there may be pending encrypt or
 	 * decrypt operations. Use a list of delayed deinits to avoid needing
-	 * locking. */
+	 * locking.
+	 */
 
 	spin_lock_irqsave(info->lock, flags);
 	list_add(&tmp->list, &info->crypt_deinit_list);
@@ -145,8 +147,8 @@ int rtllib_unregister_crypto_ops(struct lib80211_crypto_ops *ops)
 	spin_unlock_irqrestore(&hcrypt->lock, flags);
 
 	if (del_alg) {
-		printk(KERN_DEBUG "rtllib_crypt: unregistered algorithm "
-		       "'%s'\n", ops->name);
+		printk(KERN_DEBUG "rtllib_crypt: unregistered algorithm '%s'\n",
+		       ops->name);
 		kfree(del_alg);
 	}
 
@@ -237,8 +239,9 @@ void __exit rtllib_crypto_deinit(void)
 		struct rtllib_crypto_alg *alg =
 			(struct rtllib_crypto_alg *) ptr;
 		list_del(ptr);
-		printk(KERN_DEBUG "rtllib_crypt: unregistered algorithm "
-		       "'%s' (deinit)\n", alg->ops->name);
+		printk(KERN_DEBUG
+		       "rtllib_crypt: unregistered algorithm '%s' (deinit)\n",
+		       alg->ops->name);
 		kfree(alg);
 	}
 
diff --git a/drivers/staging/rtl8192e/rtllib_crypt.h b/drivers/staging/rtl8192e/rtllib_crypt.h
index e177c92..b8cf59f 100644
--- a/drivers/staging/rtl8192e/rtllib_crypt.h
+++ b/drivers/staging/rtl8192e/rtllib_crypt.h
@@ -17,8 +17,7 @@
  * more details.
  */
 
-/*
- * This file defines the interface to the rtllib crypto module.
+/* This file defines the interface to the rtllib crypto module.
  */
 #ifndef RTLLIB_CRYPT_H
 #define RTLLIB_CRYPT_H
diff --git a/drivers/staging/rtl8192e/rtllib_crypt_ccmp.c b/drivers/staging/rtl8192e/rtllib_crypt_ccmp.c
index 01f85db..7d486e8 100644
--- a/drivers/staging/rtl8192e/rtllib_crypt_ccmp.c
+++ b/drivers/staging/rtl8192e/rtllib_crypt_ccmp.c
@@ -69,8 +69,7 @@ static void *rtllib_ccmp_init(int key_idx)
 
 	priv->tfm = (void *)crypto_alloc_cipher("aes", 0, CRYPTO_ALG_ASYNC);
 	if (IS_ERR(priv->tfm)) {
-		pr_debug("rtllib_crypt_ccmp: could not allocate "
-		       "crypto API aes\n");
+		pr_debug("rtllib_crypt_ccmp: could not allocate crypto API aes\n");
 		priv->tfm = NULL;
 		goto fail;
 	}
@@ -121,10 +120,7 @@ static void ccmp_init_blocks(struct crypto_tfm *tfm,
 	fc = le16_to_cpu(hdr->frame_ctl);
 	a4_included = ((fc & (RTLLIB_FCTL_TODS | RTLLIB_FCTL_FROMDS)) ==
 		       (RTLLIB_FCTL_TODS | RTLLIB_FCTL_FROMDS));
-	/*
-	qc_included = ((WLAN_FC_GET_TYPE(fc) == RTLLIB_FTYPE_DATA) &&
-		       (WLAN_FC_GET_STYPE(fc) & 0x08));
-	*/
+
 	qc_included = ((WLAN_FC_GET_TYPE(fc) == RTLLIB_FTYPE_DATA) &&
 		       (WLAN_FC_GET_STYPE(fc) & 0x80));
 	aad_len = 22;
@@ -141,7 +137,8 @@ static void ccmp_init_blocks(struct crypto_tfm *tfm,
 	 * Flag (Include authentication header, M=3 (8-octet MIC),
 	 *       L=1 (2-octet Dlen))
 	 * Nonce: 0x00 | A2 | PN
-	 * Dlen */
+	 * Dlen
+	 */
 	b0[0] = 0x59;
 	b0[1] = qc;
 	memcpy(b0 + 2, hdr->addr2, ETH_ALEN);
@@ -278,23 +275,22 @@ static int rtllib_ccmp_decrypt(struct sk_buff *skb, int hdr_len, void *priv)
 	keyidx = pos[3];
 	if (!(keyidx & (1 << 5))) {
 		if (net_ratelimit()) {
-			pr_debug("CCMP: received packet without ExtIV"
-			       " flag from %pM\n", hdr->addr2);
+			pr_debug("CCMP: received packet without ExtIV flag from %pM\n",
+				 hdr->addr2);
 		}
 		key->dot11RSNAStatsCCMPFormatErrors++;
 		return -2;
 	}
 	keyidx >>= 6;
 	if (key->key_idx != keyidx) {
-		pr_debug("CCMP: RX tkey->key_idx=%d frame "
-		       "keyidx=%d priv=%p\n", key->key_idx, keyidx, priv);
+		pr_debug("CCMP: RX tkey->key_idx=%d frame keyidx=%d priv=%p\n",
+			 key->key_idx, keyidx, priv);
 		return -6;
 	}
 	if (!key->key_set) {
 		if (net_ratelimit()) {
-			pr_debug("CCMP: received packet from %pM"
-			       " with keyid=%d that does not have a configured"
-			       " key\n", hdr->addr2, keyidx);
+			pr_debug("CCMP: received packet from %pM with keyid=%d that does not have a configured key\n",
+				 hdr->addr2, keyidx);
 		}
 		return -3;
 	}
@@ -341,8 +337,8 @@ static int rtllib_ccmp_decrypt(struct sk_buff *skb, int hdr_len, void *priv)
 
 		if (memcmp(mic, a, CCMP_MIC_LEN) != 0) {
 			if (net_ratelimit()) {
-				pr_debug("CCMP: decrypt failed: STA="
-				" %pM\n", hdr->addr2);
+				pr_debug("CCMP: decrypt failed: STA= %pM\n",
+					 hdr->addr2);
 			}
 			key->dot11RSNAStatsCCMPDecryptErrors++;
 			return -5;
@@ -419,9 +415,7 @@ static void rtllib_ccmp_print_stats(struct seq_file *m, void *priv)
 	struct rtllib_ccmp_data *ccmp = priv;
 
 	seq_printf(m,
-		   "key[%d] alg=CCMP key_set=%d "
-		   "tx_pn=%pM rx_pn=%pM "
-		   "format_errors=%d replays=%d decrypt_errors=%d\n",
+		   "key[%d] alg=CCMP key_set=%d tx_pn=%pM rx_pn=%pM format_errors=%d replays=%d decrypt_errors=%d\n",
 		   ccmp->key_idx, ccmp->key_set,
 		   ccmp->tx_pn, ccmp->rx_pn,
 		   ccmp->dot11RSNAStatsCCMPFormatErrors,
diff --git a/drivers/staging/rtl8192e/rtllib_crypt_tkip.c b/drivers/staging/rtl8192e/rtllib_crypt_tkip.c
index 78db2b6..656b4b3 100644
--- a/drivers/staging/rtl8192e/rtllib_crypt_tkip.c
+++ b/drivers/staging/rtl8192e/rtllib_crypt_tkip.c
@@ -66,8 +66,8 @@ static void *rtllib_tkip_init(int key_idx)
 	priv->tx_tfm_arc4 = crypto_alloc_blkcipher("ecb(arc4)", 0,
 			CRYPTO_ALG_ASYNC);
 	if (IS_ERR(priv->tx_tfm_arc4)) {
-		printk(KERN_DEBUG "rtllib_crypt_tkip: could not allocate "
-				"crypto API arc4\n");
+		printk(KERN_DEBUG
+		       "rtllib_crypt_tkip: could not allocate crypto API arc4\n");
 		priv->tx_tfm_arc4 = NULL;
 		goto fail;
 	}
@@ -75,8 +75,8 @@ static void *rtllib_tkip_init(int key_idx)
 	priv->tx_tfm_michael = crypto_alloc_hash("michael_mic", 0,
 			CRYPTO_ALG_ASYNC);
 	if (IS_ERR(priv->tx_tfm_michael)) {
-		printk(KERN_DEBUG "rtllib_crypt_tkip: could not allocate "
-				"crypto API michael_mic\n");
+		printk(KERN_DEBUG
+		       "rtllib_crypt_tkip: could not allocate crypto API michael_mic\n");
 		priv->tx_tfm_michael = NULL;
 		goto fail;
 	}
@@ -84,8 +84,8 @@ static void *rtllib_tkip_init(int key_idx)
 	priv->rx_tfm_arc4 = crypto_alloc_blkcipher("ecb(arc4)", 0,
 			CRYPTO_ALG_ASYNC);
 	if (IS_ERR(priv->rx_tfm_arc4)) {
-		printk(KERN_DEBUG "rtllib_crypt_tkip: could not allocate "
-				"crypto API arc4\n");
+		printk(KERN_DEBUG
+		       "rtllib_crypt_tkip: could not allocate crypto API arc4\n");
 		priv->rx_tfm_arc4 = NULL;
 		goto fail;
 	}
@@ -93,8 +93,8 @@ static void *rtllib_tkip_init(int key_idx)
 	priv->rx_tfm_michael = crypto_alloc_hash("michael_mic", 0,
 			CRYPTO_ALG_ASYNC);
 	if (IS_ERR(priv->rx_tfm_michael)) {
-		printk(KERN_DEBUG "rtllib_crypt_tkip: could not allocate "
-				"crypto API michael_mic\n");
+		printk(KERN_DEBUG
+		       "rtllib_crypt_tkip: could not allocate crypto API michael_mic\n");
 		priv->rx_tfm_michael = NULL;
 		goto fail;
 	}
@@ -249,7 +249,8 @@ static void tkip_mixing_phase2(u8 *WEPSeed, const u8 *TK, const u16 *TTAK,
 			       u16 IV16)
 {
 	/* Make temporary area overlap WEP seed so that the final copy can be
-	 * avoided on little endian hosts. */
+	 * avoided on little endian hosts.
+	 */
 	u16 *PPK = (u16 *) &WEPSeed[4];
 
 	/* Step 1 - make copy of TTAK and bring in TSC */
@@ -276,7 +277,8 @@ static void tkip_mixing_phase2(u8 *WEPSeed, const u8 *TK, const u16 *TTAK,
 	PPK[5] += RotR1(PPK[4]);
 
 	/* Step 3 - bring in last of TK bits, assign 24-bit WEP IV value
-	 * WEPSeed[0..2] is transmitted as WEP IV */
+	 * WEPSeed[0..2] is transmitted as WEP IV
+	 */
 	WEPSeed[0] = Hi8(IV16);
 	WEPSeed[1] = (Hi8(IV16) | 0x20) & 0x7F;
 	WEPSeed[2] = Lo8(IV16);
@@ -399,22 +401,24 @@ static int rtllib_tkip_decrypt(struct sk_buff *skb, int hdr_len, void *priv)
 	keyidx = pos[3];
 	if (!(keyidx & (1 << 5))) {
 		if (net_ratelimit()) {
-			printk(KERN_DEBUG "TKIP: received packet without ExtIV"
-			       " flag from %pM\n", hdr->addr2);
+			printk(KERN_DEBUG
+			       "TKIP: received packet without ExtIV flag from %pM\n",
+			       hdr->addr2);
 		}
 		return -2;
 	}
 	keyidx >>= 6;
 	if (tkey->key_idx != keyidx) {
-		printk(KERN_DEBUG "TKIP: RX tkey->key_idx=%d frame "
-		       "keyidx=%d priv=%p\n", tkey->key_idx, keyidx, priv);
+		printk(KERN_DEBUG
+		       "TKIP: RX tkey->key_idx=%d frame keyidx=%d priv=%p\n",
+		       tkey->key_idx, keyidx, priv);
 		return -6;
 	}
 	if (!tkey->key_set) {
 		if (net_ratelimit()) {
-			printk(KERN_DEBUG "TKIP: received packet from %pM"
-			       " with keyid=%d that does not have a configured"
-			       " key\n", hdr->addr2, keyidx);
+			printk(KERN_DEBUG
+			       "TKIP: received packet from %pM with keyid=%d that does not have a configured key\n",
+			       hdr->addr2, keyidx);
 		}
 		return -3;
 	}
@@ -427,10 +431,10 @@ static int rtllib_tkip_decrypt(struct sk_buff *skb, int hdr_len, void *priv)
 		    (iv32 == tkey->rx_iv32 && iv16 <= tkey->rx_iv16)) &&
 		    tkey->initialized) {
 			if (net_ratelimit()) {
-				printk(KERN_DEBUG "TKIP: replay detected: STA="
-				       " %pM previous TSC %08x%04x received "
-				      "TSC %08x%04x\n", hdr->addr2,
-				      tkey->rx_iv32, tkey->rx_iv16, iv32, iv16);
+				printk(KERN_DEBUG
+				       "TKIP: replay detected: STA= %pM previous TSC %08x%04x received TSC %08x%04x\n",
+				       hdr->addr2, tkey->rx_iv32, tkey->rx_iv16,
+				       iv32, iv16);
 			}
 			tkey->dot11RSNAStatsTKIPReplays++;
 			return -4;
@@ -451,8 +455,8 @@ static int rtllib_tkip_decrypt(struct sk_buff *skb, int hdr_len, void *priv)
 		crypto_blkcipher_setkey(tkey->rx_tfm_arc4, rc4key, 16);
 		if (crypto_blkcipher_decrypt(&desc, &sg, &sg, plen + 4)) {
 			if (net_ratelimit()) {
-				printk(KERN_DEBUG ": TKIP: failed to decrypt "
-				       "received packet from %pM\n",
+				printk(KERN_DEBUG
+				       ": TKIP: failed to decrypt received packet from %pM\n",
 				       hdr->addr2);
 			}
 			return -7;
@@ -468,12 +472,14 @@ static int rtllib_tkip_decrypt(struct sk_buff *skb, int hdr_len, void *priv)
 			if (iv32 != tkey->rx_iv32) {
 				/* Previously cached Phase1 result was already
 				 * lost, so it needs to be recalculated for the
-				 * next packet. */
+				 * next packet.
+				 */
 				tkey->rx_phase1_done = 0;
 			}
 			if (net_ratelimit()) {
-				printk(KERN_DEBUG "TKIP: ICV error detected: STA="
-				" %pM\n", hdr->addr2);
+				printk(KERN_DEBUG
+				       "TKIP: ICV error detected: STA= %pM\n",
+				       hdr->addr2);
 			}
 			tkey->dot11RSNAStatsTKIPICVErrors++;
 			return -5;
@@ -482,7 +488,8 @@ static int rtllib_tkip_decrypt(struct sk_buff *skb, int hdr_len, void *priv)
 	}
 
 	/* Update real counters only after Michael MIC verification has
-	 * completed */
+	 * completed
+	 */
 	tkey->rx_iv32_new = iv32;
 	tkey->rx_iv16_new = iv16;
 
@@ -502,7 +509,7 @@ static int michael_mic(struct crypto_hash *tfm_michael, u8 *key, u8 *hdr,
 	struct scatterlist sg[2];
 
 	if (tfm_michael == NULL) {
-		printk(KERN_WARNING "michael_mic: tfm_michael == NULL\n");
+		pr_warn("michael_mic: tfm_michael == NULL\n");
 		return -1;
 	}
 	sg_init_table(sg, 2);
@@ -557,8 +564,8 @@ static int rtllib_michael_mic_add(struct sk_buff *skb, int hdr_len, void *priv)
 	hdr = (struct rtllib_hdr_4addr *) skb->data;
 
 	if (skb_tailroom(skb) < 8 || skb->len < hdr_len) {
-		printk(KERN_DEBUG "Invalid packet for Michael MIC add "
-		       "(tailroom=%d hdr_len=%d skb->len=%d)\n",
+		printk(KERN_DEBUG
+		       "Invalid packet for Michael MIC add (tailroom=%d hdr_len=%d skb->len=%d)\n",
 		       skb_tailroom(skb), hdr_len, skb->len);
 		return -1;
 	}
@@ -621,14 +628,14 @@ static int rtllib_michael_mic_verify(struct sk_buff *skb, int keyidx,
 		struct rtllib_hdr_4addr *hdr;
 
 		hdr = (struct rtllib_hdr_4addr *) skb->data;
-		printk(KERN_DEBUG "%s: Michael MIC verification failed for "
-		       "MSDU from %pM keyidx=%d\n",
+		printk(KERN_DEBUG
+		       "%s: Michael MIC verification failed for MSDU from %pM keyidx=%d\n",
 		       skb->dev ? skb->dev->name : "N/A", hdr->addr2,
 		       keyidx);
 		printk(KERN_DEBUG "%d\n",
 		       memcmp(mic, skb->data + skb->len - 8, 8) != 0);
 		if (skb->dev) {
-			printk(KERN_INFO "skb->dev != NULL\n");
+			pr_info("skb->dev != NULL\n");
 			rtllib_michael_mic_failure(skb->dev, hdr, keyidx);
 		}
 		tkey->dot11RSNAStatsTKIPLocalMICFailures++;
@@ -636,7 +643,8 @@ static int rtllib_michael_mic_verify(struct sk_buff *skb, int keyidx,
 	}
 
 	/* Update TSC counters for RX now that the packet verification has
-	 * completed. */
+	 * completed.
+	 */
 	tkey->rx_iv32 = tkey->rx_iv32_new;
 	tkey->rx_iv16 = tkey->rx_iv16_new;
 
@@ -717,10 +725,7 @@ static void rtllib_tkip_print_stats(struct seq_file *m, void *priv)
 	struct rtllib_tkip_data *tkip = priv;
 
 	seq_printf(m,
-		   "key[%d] alg=TKIP key_set=%d "
-		   "tx_pn=%02x%02x%02x%02x%02x%02x "
-		   "rx_pn=%02x%02x%02x%02x%02x%02x "
-		   "replays=%d icv_errors=%d local_mic_failures=%d\n",
+		   "key[%d] alg=TKIP key_set=%d tx_pn=%02x%02x%02x%02x%02x%02x rx_pn=%02x%02x%02x%02x%02x%02x replays=%d icv_errors=%d local_mic_failures=%d\n",
 		   tkip->key_idx, tkip->key_set,
 		   (tkip->tx_iv32 >> 24) & 0xff,
 		   (tkip->tx_iv32 >> 16) & 0xff,
diff --git a/drivers/staging/rtl8192e/rtllib_crypt_wep.c b/drivers/staging/rtl8192e/rtllib_crypt_wep.c
index 75e7b02..21d7eee 100644
--- a/drivers/staging/rtl8192e/rtllib_crypt_wep.c
+++ b/drivers/staging/rtl8192e/rtllib_crypt_wep.c
@@ -44,15 +44,13 @@ static void *prism2_wep_init(int keyidx)
 
 	priv->tx_tfm = crypto_alloc_blkcipher("ecb(arc4)", 0, CRYPTO_ALG_ASYNC);
 	if (IS_ERR(priv->tx_tfm)) {
-		pr_debug("rtllib_crypt_wep: could not allocate "
-		       "crypto API arc4\n");
+		pr_debug("rtllib_crypt_wep: could not allocate crypto API arc4\n");
 		priv->tx_tfm = NULL;
 		goto fail;
 	}
 	priv->rx_tfm = crypto_alloc_blkcipher("ecb(arc4)", 0, CRYPTO_ALG_ASYNC);
 	if (IS_ERR(priv->rx_tfm)) {
-		pr_debug("rtllib_crypt_wep: could not allocate "
-		       "crypto API arc4\n");
+		pr_debug("rtllib_crypt_wep: could not allocate crypto API arc4\n");
 		priv->rx_tfm = NULL;
 		goto fail;
 	}
@@ -108,9 +106,8 @@ static int prism2_wep_encrypt(struct sk_buff *skb, int hdr_len, void *priv)
 
 	if (skb_headroom(skb) < 4 || skb_tailroom(skb) < 4 ||
 	    skb->len < hdr_len){
-		printk(KERN_ERR "Error!!! headroom=%d tailroom=%d skblen=%d"
-		       " hdr_len=%d\n", skb_headroom(skb), skb_tailroom(skb),
-		       skb->len, hdr_len);
+		pr_err("Error!!! headroom=%d tailroom=%d skblen=%d hdr_len=%d\n",
+		       skb_headroom(skb), skb_tailroom(skb), skb->len, hdr_len);
 		return -1;
 	}
 	len = skb->len - hdr_len;
@@ -124,7 +121,8 @@ static int prism2_wep_encrypt(struct sk_buff *skb, int hdr_len, void *priv)
 
 	/* Fluhrer, Mantin, and Shamir have reported weaknesses in the key
 	 * scheduling algorithm of RC4. At least IVs (KeyByte + 3, 0xff, N)
-	 * can be used to speedup attacks, so avoid using them. */
+	 * can be used to speedup attacks, so avoid using them.
+	 */
 	if ((wep->iv & 0xff00) == 0xff00) {
 		u8 B = (wep->iv >> 16) & 0xff;
 
diff --git a/drivers/staging/rtl8192e/rtllib_debug.h b/drivers/staging/rtl8192e/rtllib_debug.h
index 7537dae..119729d 100644
--- a/drivers/staging/rtl8192e/rtllib_debug.h
+++ b/drivers/staging/rtl8192e/rtllib_debug.h
@@ -80,9 +80,9 @@ do {			\
 #define assert(expr) \
 do {	\
 	if (!(expr)) {				  \
-		printk(KERN_INFO "Assertion failed! %s,%s,%s,line=%d\n", \
+		pr_info("Assertion failed! %s,%s,%s,line=%d\n", \
 		#expr, __FILE__, __func__, __LINE__);	  \
 	}	\
-} while (0);
+} while (0)
 
 #endif
diff --git a/drivers/staging/rtl8192e/rtllib_endianfree.h b/drivers/staging/rtl8192e/rtllib_endianfree.h
deleted file mode 100644
index b189fa5..0000000
--- a/drivers/staging/rtl8192e/rtllib_endianfree.h
+++ /dev/null
@@ -1,122 +0,0 @@
-#ifndef __INC_ENDIANFREE_H
-#define __INC_ENDIANFREE_H
-
-/*
- *	Call endian free function when
- *		1. Read/write packet content.
- *		2. Before write integer to IO.
- *		3. After read integer from IO.
- */
-
-#define __MACHINE_LITTLE_ENDIAN 1234    /* LSB first: i386, vax */
-#define __MACHINE_BIG_ENDIAN    4321    /* MSB first: 68000, ibm, net, ppc */
-
-#define BYTE_ORDER __MACHINE_LITTLE_ENDIAN
-
-#if BYTE_ORDER == __MACHINE_LITTLE_ENDIAN
-#define EF1Byte(_val)			((u8)(_val))
-#define EF2Byte(_val)			((u16)(_val))
-#define EF4Byte(_val)			((u32)(_val))
-
-#else
-#define EF1Byte(_val)			((u8)(_val))
-#define EF2Byte(_val)			\
-	(((((u16)(_val))&0x00ff)<<8)|((((u16)(_val))&0xff00)>>8))
-#define EF4Byte(_val)			\
-	(((((u32)(_val))&0x000000ff)<<24)|\
-	((((u32)(_val))&0x0000ff00)<<8)|\
-	((((u32)(_val))&0x00ff0000)>>8)|\
-	((((u32)(_val))&0xff000000)>>24))
-#endif
-
-#define ReadEF1Byte(_ptr)		EF1Byte(*((u8 *)(_ptr)))
-#define ReadEF2Byte(_ptr)		EF2Byte(*((u16 *)(_ptr)))
-#define ReadEF4Byte(_ptr)		EF4Byte(*((u32 *)(_ptr)))
-
-#define WriteEF1Byte(_ptr, _val)	((*((u8 *)(_ptr))) = EF1Byte(_val))
-#define WriteEF2Byte(_ptr, _val)	((*((u16 *)(_ptr))) = EF2Byte(_val))
-#define WriteEF4Byte(_ptr, _val)	((*((u32 *)(_ptr))) = EF4Byte(_val))
-#if BYTE_ORDER == __MACHINE_LITTLE_ENDIAN
-#define H2N1BYTE(_val)	((u8)(_val))
-#define H2N2BYTE(_val)	(((((u16)(_val))&0x00ff)<<8)|\
-			((((u16)(_val))&0xff00)>>8))
-#define H2N4BYTE(_val)	(((((u32)(_val))&0x000000ff)<<24)|\
-			((((u32)(_val))&0x0000ff00)<<8)	|\
-			((((u32)(_val))&0x00ff0000)>>8)	|\
-			((((u32)(_val))&0xff000000)>>24))
-#else
-#define H2N1BYTE(_val)			((u8)(_val))
-#define H2N2BYTE(_val)			((u16)(_val))
-#define H2N4BYTE(_val)			((u32)(_val))
-#endif
-
-#if BYTE_ORDER == __MACHINE_LITTLE_ENDIAN
-#define N2H1BYTE(_val)	((u8)(_val))
-#define N2H2BYTE(_val)	(((((u16)(_val))&0x00ff)<<8)|\
-			((((u16)(_val))&0xff00)>>8))
-#define N2H4BYTE(_val)	(((((u32)(_val))&0x000000ff)<<24)|\
-			((((u32)(_val))&0x0000ff00)<<8)	|\
-			((((u32)(_val))&0x00ff0000)>>8)	|\
-			((((u32)(_val))&0xff000000)>>24))
-#else
-#define N2H1BYTE(_val)			((u8)(_val))
-#define N2H2BYTE(_val)			((u16)(_val))
-#define N2H4BYTE(_val)			((u32)(_val))
-#endif
-
-#define BIT_LEN_MASK_32(__BitLen) (0xFFFFFFFF >> (32 - (__BitLen)))
-#define BIT_OFFSET_LEN_MASK_32(__BitOffset, __BitLen)			\
-	(BIT_LEN_MASK_32(__BitLen) << (__BitOffset))
-
-#define LE_P4BYTE_TO_HOST_4BYTE(__pStart) (EF4Byte(*((u32 *)(__pStart))))
-
-#define LE_BITS_TO_4BYTE(__pStart, __BitOffset, __BitLen) \
-	( \
-	  (LE_P4BYTE_TO_HOST_4BYTE(__pStart) >> (__BitOffset)) \
-	  & \
-	  BIT_LEN_MASK_32(__BitLen) \
-	)
-
-#define LE_BITS_CLEARED_TO_4BYTE(__pStart, __BitOffset, __BitLen) \
-	( \
-	  LE_P4BYTE_TO_HOST_4BYTE(__pStart) \
-	  & \
-	  (~BIT_OFFSET_LEN_MASK_32(__BitOffset, __BitLen)) \
-	)
-
-#define BIT_LEN_MASK_16(__BitLen) \
-	(0xFFFF >> (16 - (__BitLen)))
-
-#define BIT_OFFSET_LEN_MASK_16(__BitOffset, __BitLen) \
-	(BIT_LEN_MASK_16(__BitLen) << (__BitOffset))
-
-#define LE_P2BYTE_TO_HOST_2BYTE(__pStart) \
-	(EF2Byte(*((u16 *)(__pStart))))
-
-#define LE_BITS_TO_2BYTE(__pStart, __BitOffset, __BitLen) \
-	( \
-	  (LE_P2BYTE_TO_HOST_2BYTE(__pStart) >> (__BitOffset)) \
-	  & \
-	  BIT_LEN_MASK_16(__BitLen) \
-	)
-
-#define BIT_LEN_MASK_8(__BitLen) \
-	(0xFF >> (8 - (__BitLen)))
-
-#define BIT_OFFSET_LEN_MASK_8(__BitOffset, __BitLen) \
-	(BIT_LEN_MASK_8(__BitLen) << (__BitOffset))
-
-#define LE_P1BYTE_TO_HOST_1BYTE(__pStart) \
-	(EF1Byte(*((u8 *)(__pStart))))
-
-#define LE_BITS_TO_1BYTE(__pStart, __BitOffset, __BitLen) \
-	( \
-	  (LE_P1BYTE_TO_HOST_1BYTE(__pStart) >> (__BitOffset)) \
-	  & \
-	  BIT_LEN_MASK_8(__BitLen) \
-	)
-
-#define	N_BYTE_ALIGMENT(__Value, __Aligment)			\
-	 ((__Aligment == 1) ? (__Value) : (((__Value + __Aligment - 1) / \
-	__Aligment) * __Aligment))
-#endif
diff --git a/drivers/staging/rtl8192e/rtllib_module.c b/drivers/staging/rtl8192e/rtllib_module.c
index 0cf3809..32cc8df 100644
--- a/drivers/staging/rtl8192e/rtllib_module.c
+++ b/drivers/staging/rtl8192e/rtllib_module.c
@@ -72,11 +72,8 @@ static inline int rtllib_networks_allocate(struct rtllib_device *ieee)
 	ieee->networks = kzalloc(
 		MAX_NETWORK_COUNT * sizeof(struct rtllib_network),
 		GFP_KERNEL);
-	if (!ieee->networks) {
-		printk(KERN_WARNING "%s: Out of memory allocating beacons\n",
-		       ieee->dev->name);
+	if (!ieee->networks)
 		return -ENOMEM;
-	}
 
 	return 0;
 }
@@ -161,10 +158,9 @@ struct net_device *alloc_rtllib(int sizeof_priv)
 	rtllib_softmac_init(ieee);
 
 	ieee->pHTInfo = kzalloc(sizeof(struct rt_hi_throughput), GFP_KERNEL);
-	if (ieee->pHTInfo == NULL) {
-		RTLLIB_DEBUG(RTLLIB_DL_ERR, "can't alloc memory for HTInfo\n");
+	if (ieee->pHTInfo == NULL)
 		return NULL;
-	}
+
 	HTUpdateDefaultSetting(ieee);
 	HTInitializeHTInfo(ieee);
 	TSInitialize(ieee);
@@ -207,7 +203,9 @@ static struct proc_dir_entry *rtllib_proc;
 
 static int show_debug_level(struct seq_file *m, void *v)
 {
-	return seq_printf(m, "0x%08X\n", rtllib_debug_level);
+	seq_printf(m, "0x%08X\n", rtllib_debug_level);
+
+	return 0;
 }
 
 static ssize_t write_debug_level(struct file *file, const char __user *buffer,
diff --git a/drivers/staging/rtl8192e/rtllib_rx.c b/drivers/staging/rtl8192e/rtllib_rx.c
index 1664040..fe3e7e12 100644
--- a/drivers/staging/rtl8192e/rtllib_rx.c
+++ b/drivers/staging/rtl8192e/rtllib_rx.c
@@ -143,7 +143,8 @@ rtllib_frag_cache_get(struct rtllib_device *ieee,
 		memcpy(entry->dst_addr, hdr->addr1, ETH_ALEN);
 	} else {
 		/* received a fragment of a frame for which the head fragment
-		 * should have already been received */
+		 * should have already been received
+		 */
 		entry = rtllib_frag_cache_find(ieee, seq, frag, tid, hdr->addr2,
 						  hdr->addr1);
 		if (entry != NULL) {
@@ -199,7 +200,8 @@ static int rtllib_frag_cache_invalidate(struct rtllib_device *ieee,
  *
  * Responsible for handling management control frames
  *
- * Called by rtllib_rx */
+ * Called by rtllib_rx
+ */
 static inline int
 rtllib_rx_frame_mgmt(struct rtllib_device *ieee, struct sk_buff *skb,
 			struct rtllib_rx_stats *rx_stats, u16 type,
@@ -224,8 +226,9 @@ rtllib_rx_frame_mgmt(struct rtllib_device *ieee, struct sk_buff *skb,
 	return 0;
 }
 
-/* See IEEE 802.1H for LLC/SNAP encapsulation/decapsulation */
-/* Ethernet-II snap header (RFC1042 for most EtherTypes) */
+/* See IEEE 802.1H for LLC/SNAP encapsulation/decapsulation
+ * Ethernet-II snap header (RFC1042 for most EtherTypes)
+ */
 static unsigned char rfc1042_header[] = {
 	0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00
 };
@@ -394,10 +397,9 @@ static int is_duplicate_packet(struct rtllib_device *ieee,
 		}
 		if (p == &ieee->ibss_mac_hash[index]) {
 			entry = kmalloc(sizeof(struct ieee_ibss_seq), GFP_ATOMIC);
-			if (!entry) {
-				printk(KERN_WARNING "Cannot malloc new mac entry\n");
+			if (!entry)
 				return 0;
-			}
+
 			memcpy(entry->mac, mac, ETH_ALEN);
 			entry->seq_num[tid] = seq;
 			entry->frag_num[tid] = frag;
@@ -483,7 +485,8 @@ void rtllib_indicate_packets(struct rtllib_device *ieee, struct rtllib_rxb **prx
 			    ethertype != ETH_P_AARP && ethertype != ETH_P_IPX) ||
 			    memcmp(sub_skb->data, bridge_tunnel_header, SNAP_SIZE) == 0)) {
 				/* remove RFC1042 or Bridge-Tunnel encapsulation
-				 * and replace EtherType */
+				 * and replace EtherType
+				 */
 				skb_pull(sub_skb, SNAP_SIZE);
 				memcpy(skb_push(sub_skb, ETH_ALEN), prxb->src, ETH_ALEN);
 				memcpy(skb_push(sub_skb, ETH_ALEN), prxb->dst, ETH_ALEN);
@@ -524,7 +527,9 @@ void rtllib_FlushRxTsPendingPkts(struct rtllib_device *ieee,	struct rx_ts_record
 	del_timer_sync(&pTS->RxPktPendingTimer);
 	while (!list_empty(&pTS->RxPendingPktList)) {
 		if (RfdCnt >= REORDER_WIN_SIZE) {
-			printk(KERN_INFO "-------------->%s() error! RfdCnt >= REORDER_WIN_SIZE\n", __func__);
+			netdev_info(ieee->dev,
+				    "-------------->%s() error! RfdCnt >= REORDER_WIN_SIZE\n",
+				    __func__);
 			break;
 		}
 
@@ -581,8 +586,7 @@ static void RxReorderIndicatePacket(struct rtllib_device *ieee,
 		return;
 	}
 
-	/*
-	 * Sliding window manipulation. Conditions includes:
+	/* Sliding window manipulation. Conditions includes:
 	 * 1. Incoming SeqNum is equal to WinStart =>Window shift 1
 	 * 2. Incoming SeqNum is larger than the WinEnd => Window shift N
 	 */
@@ -597,13 +601,12 @@ static void RxReorderIndicatePacket(struct rtllib_device *ieee,
 		RTLLIB_DEBUG(RTLLIB_DL_REORDER, "Window Shift! IndicateSeq: %d, NewSeq: %d\n", pTS->RxIndicateSeq, SeqNum);
 	}
 
-	/*
-	 * Indication process.
+	/* Indication process.
 	 * After Packet dropping and Sliding Window shifting as above, we can
 	 * now just indicate the packets with the SeqNum smaller than latest
 	 * WinStart and struct buffer other packets.
-	 */
-	/* For Rx Reorder condition:
+	 *
+	 * For Rx Reorder condition:
 	 * 1. All packets with SeqNum smaller than WinStart => Indicate
 	 * 2. All packets with SeqNum larger than or equal to
 	 *	 WinStart => Buffer it.
@@ -646,8 +649,7 @@ static void RxReorderIndicatePacket(struct rtllib_device *ieee,
 					 pTS->RxIndicateSeq, SeqNum);
 			}
 		} else {
-			/*
-			 * Packets are dropped if there are not enough reorder
+			/* Packets are dropped if there are not enough reorder
 			 * entries. This part should be modified!! We can just
 			 * indicate all the packets in struct buffer and get
 			 * reorder entries.
@@ -697,7 +699,8 @@ static void RxReorderIndicatePacket(struct rtllib_device *ieee,
 	}
 
 	/* Handling pending timer. Set this timer to prevent from long time
-	 * Rx buffering.*/
+	 * Rx buffering.
+	 */
 	if (index > 0) {
 		if (timer_pending(&pTS->RxPktPendingTimer))
 			del_timer_sync(&pTS->RxPktPendingTimer);
@@ -718,7 +721,7 @@ static void RxReorderIndicatePacket(struct rtllib_device *ieee,
 			     __func__);
 		pTS->RxTimeoutIndicateSeq = pTS->RxIndicateSeq;
 		mod_timer(&pTS->RxPktPendingTimer, jiffies +
-			  MSECS(pHTInfo->RxReorderPendingTime));
+			  msecs_to_jiffies(pHTInfo->RxReorderPendingTime));
 	}
 	spin_unlock_irqrestore(&(ieee->reorder_spinlock), flags);
 }
@@ -782,69 +785,74 @@ static u8 parse_subframe(struct rtllib_device *ieee, struct sk_buff *skb,
 		memcpy(rxb->dst, dst, ETH_ALEN);
 		rxb->subframes[0]->dev = ieee->dev;
 		return 1;
-	} else {
-		rxb->nr_subframes = 0;
-		memcpy(rxb->src, src, ETH_ALEN);
-		memcpy(rxb->dst, dst, ETH_ALEN);
-		while (skb->len > ETHERNET_HEADER_SIZE) {
-			/* Offset 12 denote 2 mac address */
-			nSubframe_Length = *((u16 *)(skb->data + 12));
-			nSubframe_Length = (nSubframe_Length >> 8) +
-					   (nSubframe_Length << 8);
-
-			if (skb->len < (ETHERNET_HEADER_SIZE + nSubframe_Length)) {
-				printk(KERN_INFO "%s: A-MSDU parse error!! pRfd->nTotalSubframe : %d\n",\
-				       __func__, rxb->nr_subframes);
-				printk(KERN_INFO "%s: A-MSDU parse error!! Subframe Length: %d\n", __func__,
-				       nSubframe_Length);
-				printk(KERN_INFO "nRemain_Length is %d and nSubframe_Length is : %d\n", skb->len,
-				       nSubframe_Length);
-				printk(KERN_INFO "The Packet SeqNum is %d\n", SeqNum);
-				return 0;
-			}
+	}
 
-			/* move the data point to data content */
-			skb_pull(skb, ETHERNET_HEADER_SIZE);
+	rxb->nr_subframes = 0;
+	memcpy(rxb->src, src, ETH_ALEN);
+	memcpy(rxb->dst, dst, ETH_ALEN);
+	while (skb->len > ETHERNET_HEADER_SIZE) {
+		/* Offset 12 denote 2 mac address */
+		nSubframe_Length = *((u16 *)(skb->data + 12));
+		nSubframe_Length = (nSubframe_Length >> 8) +
+				   (nSubframe_Length << 8);
+
+		if (skb->len < (ETHERNET_HEADER_SIZE + nSubframe_Length)) {
+			netdev_info(ieee->dev,
+				    "%s: A-MSDU parse error!! pRfd->nTotalSubframe : %d\n",
+				    __func__, rxb->nr_subframes);
+			netdev_info(ieee->dev,
+				    "%s: A-MSDU parse error!! Subframe Length: %d\n",
+				    __func__, nSubframe_Length);
+			netdev_info(ieee->dev,
+				    "nRemain_Length is %d and nSubframe_Length is : %d\n",
+				    skb->len, nSubframe_Length);
+			netdev_info(ieee->dev,
+				    "The Packet SeqNum is %d\n",
+				    SeqNum);
+			return 0;
+		}
 
-			/* altered by clark 3/30/2010
-			 * The struct buffer size of the skb indicated to upper layer
-			 * must be less than 5000, or the defraged IP datagram
-			 * in the IP layer will exceed "ipfrag_high_tresh" and be
-			 * discarded. so there must not use the function
-			 * "skb_copy" and "skb_clone" for "skb".
-			 */
+		/* move the data point to data content */
+		skb_pull(skb, ETHERNET_HEADER_SIZE);
 
-			/* Allocate new skb for releasing to upper layer */
-			sub_skb = dev_alloc_skb(nSubframe_Length + 12);
-			if (!sub_skb)
-				return 0;
-			skb_reserve(sub_skb, 12);
-			data_ptr = (u8 *)skb_put(sub_skb, nSubframe_Length);
-			memcpy(data_ptr, skb->data, nSubframe_Length);
-
-			sub_skb->dev = ieee->dev;
-			rxb->subframes[rxb->nr_subframes++] = sub_skb;
-			if (rxb->nr_subframes >= MAX_SUBFRAME_COUNT) {
-				RTLLIB_DEBUG_RX("ParseSubframe(): Too many Subframes! Packets dropped!\n");
-				break;
-			}
-			skb_pull(skb, nSubframe_Length);
-
-			if (skb->len != 0) {
-				nPadding_Length = 4 - ((nSubframe_Length +
-						  ETHERNET_HEADER_SIZE) % 4);
-				if (nPadding_Length == 4)
-					nPadding_Length = 0;
+		/* altered by clark 3/30/2010
+		 * The struct buffer size of the skb indicated to upper layer
+		 * must be less than 5000, or the defraged IP datagram
+		 * in the IP layer will exceed "ipfrag_high_tresh" and be
+		 * discarded. so there must not use the function
+		 * "skb_copy" and "skb_clone" for "skb".
+		 */
 
-				if (skb->len < nPadding_Length)
-					return 0;
+		/* Allocate new skb for releasing to upper layer */
+		sub_skb = dev_alloc_skb(nSubframe_Length + 12);
+		if (!sub_skb)
+			return 0;
+		skb_reserve(sub_skb, 12);
+		data_ptr = (u8 *)skb_put(sub_skb, nSubframe_Length);
+		memcpy(data_ptr, skb->data, nSubframe_Length);
 
-				skb_pull(skb, nPadding_Length);
-			}
+		sub_skb->dev = ieee->dev;
+		rxb->subframes[rxb->nr_subframes++] = sub_skb;
+		if (rxb->nr_subframes >= MAX_SUBFRAME_COUNT) {
+			RTLLIB_DEBUG_RX("ParseSubframe(): Too many Subframes! Packets dropped!\n");
+			break;
 		}
+		skb_pull(skb, nSubframe_Length);
 
-		return rxb->nr_subframes;
+		if (skb->len != 0) {
+			nPadding_Length = 4 - ((nSubframe_Length +
+					  ETHERNET_HEADER_SIZE) % 4);
+			if (nPadding_Length == 4)
+				nPadding_Length = 0;
+
+			if (skb->len < nPadding_Length)
+				return 0;
+
+			skb_pull(skb, nPadding_Length);
+		}
 	}
+
+	return rxb->nr_subframes;
 }
 
 
@@ -859,7 +867,8 @@ static size_t rtllib_rx_get_hdrlen(struct rtllib_device *ieee,
 	hdrlen = rtllib_get_hdrlen(fc);
 	if (HTCCheck(ieee, skb->data)) {
 		if (net_ratelimit())
-			printk(KERN_INFO "%s: find HTCControl!\n", __func__);
+			netdev_info(ieee->dev, "%s: find HTCControl!\n",
+				    __func__);
 		hdrlen += 4;
 		rx_stats->bContainHTC = true;
 	}
@@ -966,7 +975,8 @@ static int rtllib_rx_data_filter(struct rtllib_device *ieee, u16 fc,
 	}
 
 	/* Nullfunc frames may have PS-bit set, so they must be passed to
-	 * hostap_handle_sta_rx() before being dropped here. */
+	 * hostap_handle_sta_rx() before being dropped here.
+	 */
 	if (!ieee->IntelPromiscuousModeInfo.bPromiscuousOn) {
 		if (stype != RTLLIB_STYPE_DATA &&
 		    stype != RTLLIB_STYPE_DATA_CFACK &&
@@ -1008,7 +1018,8 @@ static int rtllib_rx_get_crypt(struct rtllib_device *ieee, struct sk_buff *skb,
 
 		*crypt = ieee->crypt_info.crypt[idx];
 		/* allow NULL decrypt to indicate an station specific override
-		 * for default encryption */
+		 * for default encryption
+		 */
 		if (*crypt && ((*crypt)->ops == NULL ||
 			      (*crypt)->ops->decrypt_mpdu == NULL))
 			*crypt = NULL;
@@ -1017,7 +1028,8 @@ static int rtllib_rx_get_crypt(struct rtllib_device *ieee, struct sk_buff *skb,
 			/* This seems to be triggered by some (multicast?)
 			 * frames from other than current BSS, so just drop the
 			 * frames silently instead of filling system log with
-			 * these reports. */
+			 * these reports.
+			 */
 			RTLLIB_DEBUG_DROP("Decryption failed (not set) (SA= %pM)\n",
 					     hdr->addr2);
 			ieee->ieee_stats.rx_discards_undecryptable++;
@@ -1049,7 +1061,7 @@ static int rtllib_rx_decrypt(struct rtllib_device *ieee, struct sk_buff *skb,
 
 	keyidx = rtllib_rx_frame_decrypt(ieee, skb, crypt);
 	if (ieee->host_decrypt && (fc & RTLLIB_FCTL_WEP) && (keyidx < 0)) {
-		printk(KERN_INFO "%s: decrypt frame error\n", __func__);
+		netdev_info(ieee->dev, "%s: decrypt frame error\n", __func__);
 		return -1;
 	}
 
@@ -1072,19 +1084,22 @@ static int rtllib_rx_decrypt(struct rtllib_device *ieee, struct sk_buff *skb,
 			flen -= hdrlen;
 
 		if (frag_skb->tail + flen > frag_skb->end) {
-			printk(KERN_WARNING "%s: host decrypted and reassembled frame did not fit skb\n",
-			       __func__);
+			netdev_warn(ieee->dev,
+				    "%s: host decrypted and reassembled frame did not fit skb\n",
+				    __func__);
 			rtllib_frag_cache_invalidate(ieee, hdr);
 			return -1;
 		}
 
 		if (frag == 0) {
 			/* copy first fragment (including full headers) into
-			 * beginning of the fragment cache skb */
+			 * beginning of the fragment cache skb
+			 */
 			memcpy(skb_put(frag_skb, flen), skb->data, flen);
 		} else {
 			/* append frame payload to the end of the fragment
-			 * cache skb */
+			 * cache skb
+			 */
 			memcpy(skb_put(frag_skb, flen), skb->data + hdrlen,
 			       flen);
 		}
@@ -1094,22 +1109,25 @@ static int rtllib_rx_decrypt(struct rtllib_device *ieee, struct sk_buff *skb,
 		if (fc & RTLLIB_FCTL_MOREFRAGS) {
 			/* more fragments expected - leave the skb in fragment
 			 * cache for now; it will be delivered to upper layers
-			 * after all fragments have been received */
+			 * after all fragments have been received
+			 */
 			return -2;
 		}
 
 		/* this was the last fragment and the frame will be
-		 * delivered, so remove skb from fragment cache */
+		 * delivered, so remove skb from fragment cache
+		 */
 		skb = frag_skb;
 		hdr = (struct rtllib_hdr_4addr *) skb->data;
 		rtllib_frag_cache_invalidate(ieee, hdr);
 	}
 
 	/* skb: hdr + (possible reassembled) full MSDU payload; possibly still
-	 * encrypted/authenticated */
+	 * encrypted/authenticated
+	 */
 	if (ieee->host_decrypt && (fc & RTLLIB_FCTL_WEP) &&
 		rtllib_rx_frame_decrypt_msdu(ieee, skb, keyidx, crypt)) {
-		printk(KERN_INFO "%s: ==>decrypt msdu error\n", __func__);
+		netdev_info(ieee->dev, "%s: ==>decrypt msdu error\n", __func__);
 		return -1;
 	}
 
@@ -1119,7 +1137,8 @@ static int rtllib_rx_decrypt(struct rtllib_device *ieee, struct sk_buff *skb,
 		    rtllib_is_eapol_frame(ieee, skb, hdrlen)) {
 
 			/* pass unencrypted EAPOL frames even if encryption is
-			 * configured */
+			 * configured
+			 */
 			struct eapol *eap = (struct eapol *)(skb->data +
 				24);
 			RTLLIB_DEBUG_EAP("RX: IEEE 802.1X EAPOL frame: %s\n",
@@ -1149,7 +1168,7 @@ static int rtllib_rx_decrypt(struct rtllib_device *ieee, struct sk_buff *skb,
 	}
 
 	if (rtllib_is_eapol_frame(ieee, skb, hdrlen))
-		printk(KERN_WARNING "RX: IEEE802.1X EAPOL frame!\n");
+		netdev_warn(ieee->dev, "RX: IEEE802.1X EAPOL frame!\n");
 
 	return 0;
 }
@@ -1158,7 +1177,7 @@ static void rtllib_rx_check_leave_lps(struct rtllib_device *ieee, u8 unicast, u8
 {
 	if (unicast) {
 
-		if ((ieee->state == RTLLIB_LINKED)) {
+		if (ieee->state == RTLLIB_LINKED) {
 			if (((ieee->LinkDetectInfo.NumRxUnicastOkInPeriod +
 			    ieee->LinkDetectInfo.NumTxOkInPeriod) > 8) ||
 			    (ieee->LinkDetectInfo.NumRxUnicastOkInPeriod > 2)) {
@@ -1181,8 +1200,8 @@ static void rtllib_rx_indicate_pkt_legacy(struct rtllib_device *ieee,
 	int i = 0;
 
 	if (rxb == NULL) {
-		printk(KERN_INFO "%s: rxb is NULL!!\n", __func__);
-		return ;
+		netdev_info(dev, "%s: rxb is NULL!!\n", __func__);
+		return;
 	}
 
 	for (i = 0; i < rxb->nr_subframes; i++) {
@@ -1196,7 +1215,8 @@ static void rtllib_rx_indicate_pkt_legacy(struct rtllib_device *ieee,
 				ethertype != ETH_P_AARP && ethertype != ETH_P_IPX) ||
 				memcmp(sub_skb->data, bridge_tunnel_header, SNAP_SIZE) == 0)) {
 				/* remove RFC1042 or Bridge-Tunnel encapsulation and
-				 * replace EtherType */
+				 * replace EtherType
+				 */
 				skb_pull(sub_skb, SNAP_SIZE);
 				memcpy(skb_push(sub_skb, ETH_ALEN), src, ETH_ALEN);
 				memcpy(skb_push(sub_skb, ETH_ALEN), dst, ETH_ALEN);
@@ -1226,7 +1246,6 @@ static void rtllib_rx_indicate_pkt_legacy(struct rtllib_device *ieee,
 		}
 	}
 	kfree(rxb);
-	rxb = NULL;
 }
 
 static int rtllib_rx_InfraAdhoc(struct rtllib_device *ieee, struct sk_buff *skb,
@@ -1263,7 +1282,8 @@ static int rtllib_rx_InfraAdhoc(struct rtllib_device *ieee, struct sk_buff *skb,
 	/*Filter pkt has too small length */
 	hdrlen = rtllib_rx_get_hdrlen(ieee, skb, rx_stats);
 	if (skb->len < hdrlen) {
-		printk(KERN_INFO "%s():ERR!!! skb->len is smaller than hdrlen\n", __func__);
+		netdev_info(dev, "%s():ERR!!! skb->len is smaller than hdrlen\n",
+			    __func__);
 		goto rx_dropped;
 	}
 
@@ -1345,11 +1365,9 @@ static int rtllib_rx_InfraAdhoc(struct rtllib_device *ieee, struct sk_buff *skb,
 	/* skb: hdr + (possible reassembled) full plaintext payload */
 	payload = skb->data + hdrlen;
 	rxb = kmalloc(sizeof(struct rtllib_rxb), GFP_ATOMIC);
-	if (rxb == NULL) {
-		RTLLIB_DEBUG(RTLLIB_DL_ERR,
-			     "%s(): kmalloc rxb error\n", __func__);
+	if (rxb == NULL)
 		goto rx_dropped;
-	}
+
 	/* to parse amsdu packets */
 	/* qos data packets & reserved bit is 1 */
 	if (parse_subframe(ieee, skb, rx_stats, rxb, src, dst) == 0) {
@@ -1390,7 +1408,8 @@ static int rtllib_rx_InfraAdhoc(struct rtllib_device *ieee, struct sk_buff *skb,
 
 	/* Returning 0 indicates to caller that we have not handled the SKB--
 	 * so it is still allocated and can be used again by underlying
-	 * hardware as a DMA target */
+	 * hardware as a DMA target
+	 */
 	return 0;
 }
 
@@ -1408,13 +1427,16 @@ static int rtllib_rx_Monitor(struct rtllib_device *ieee, struct sk_buff *skb,
 	size_t hdrlen = rtllib_get_hdrlen(fc);
 
 	if (skb->len < hdrlen) {
-		printk(KERN_INFO "%s():ERR!!! skb->len is smaller than hdrlen\n", __func__);
+		netdev_info(ieee->dev,
+			    "%s():ERR!!! skb->len is smaller than hdrlen\n",
+			    __func__);
 		return 0;
 	}
 
 	if (HTCCheck(ieee, skb->data)) {
 		if (net_ratelimit())
-			printk(KERN_INFO "%s: Find HTCControl!\n", __func__);
+			netdev_info(ieee->dev, "%s: Find HTCControl!\n",
+				    __func__);
 		hdrlen += 4;
 	}
 
@@ -1433,18 +1455,19 @@ static int rtllib_rx_Mesh(struct rtllib_device *ieee, struct sk_buff *skb,
 
 /* All received frames are sent to this function. @skb contains the frame in
  * IEEE 802.11 format, i.e., in the format it was sent over air.
- * This function is called only as a tasklet (software IRQ). */
+ * This function is called only as a tasklet (software IRQ).
+ */
 int rtllib_rx(struct rtllib_device *ieee, struct sk_buff *skb,
 		 struct rtllib_rx_stats *rx_stats)
 {
 	int ret = 0;
 
 	if ((NULL == ieee) || (NULL == skb) || (NULL == rx_stats)) {
-		printk(KERN_INFO "%s: Input parameters NULL!\n", __func__);
+		pr_info("%s: Input parameters NULL!\n", __func__);
 		goto rx_dropped;
 	}
 	if (skb->len < 10) {
-		printk(KERN_INFO "%s: SKB length < 10\n", __func__);
+		netdev_info(ieee->dev, "%s: SKB length < 10\n", __func__);
 		goto rx_dropped;
 	}
 
@@ -1464,7 +1487,7 @@ int rtllib_rx(struct rtllib_device *ieee, struct sk_buff *skb,
 		ret = rtllib_rx_Mesh(ieee, skb, rx_stats);
 		break;
 	default:
-		printk(KERN_INFO"%s: ERR iw mode!!!\n", __func__);
+		netdev_info(ieee->dev, "%s: ERR iw mode!!!\n", __func__);
 		break;
 	}
 
@@ -1479,10 +1502,7 @@ EXPORT_SYMBOL(rtllib_rx);
 
 static u8 qos_oui[QOS_OUI_LEN] = { 0x00, 0x50, 0xF2 };
 
-/*
-* Make ther structure we read from the beacon packet has
-* the right values
-*/
+/* Make ther structure we read from the beacon packet has the right values */
 static int rtllib_verify_qos_info(struct rtllib_qos_information_element
 				     *info_element, int sub_type)
 {
@@ -1500,9 +1520,7 @@ static int rtllib_verify_qos_info(struct rtllib_qos_information_element
 }
 
 
-/*
- * Parse a QoS parameter element
- */
+/* Parse a QoS parameter element */
 static int rtllib_read_qos_param_element(struct rtllib_qos_parameter_info
 					    *element_param, struct rtllib_info_element
 					    *info_element)
@@ -1526,9 +1544,7 @@ static int rtllib_read_qos_param_element(struct rtllib_qos_parameter_info
 	return ret;
 }
 
-/*
- * Parse a QoS information element
- */
+/* Parse a QoS information element */
 static int rtllib_read_qos_info_element(struct
 					   rtllib_qos_information_element
 					   *element_info, struct rtllib_info_element
@@ -1557,9 +1573,7 @@ static int rtllib_read_qos_info_element(struct
 }
 
 
-/*
- * Write QoS parameters from the ac parameters.
- */
+/* Write QoS parameters from the ac parameters. */
 static int rtllib_qos_convert_ac_to_parameters(struct rtllib_qos_parameter_info *param_elm,
 		struct rtllib_qos_data *qos_data)
 {
@@ -1618,8 +1632,7 @@ static int rtllib_qos_convert_ac_to_parameters(struct rtllib_qos_parameter_info
 	return 0;
 }
 
-/*
- * we have a generic data element which it may contain QoS information or
+/* we have a generic data element which it may contain QoS information or
  * parameters element. check the information element length to decide
  * which type to read
  */
@@ -1705,7 +1718,9 @@ static inline void rtllib_extract_country_ie(
 
 			if (!IS_COUNTRY_IE_VALID(ieee)) {
 				if (rtllib_act_scanning(ieee, false) && ieee->FirstIe_InScan)
-					printk(KERN_INFO "Received beacon ContryIE, SSID: <%s>\n", network->ssid);
+					netdev_info(ieee->dev,
+						    "Received beacon ContryIE, SSID: <%s>\n",
+						    network->ssid);
 				Dot11d_UpdateCountryIe(ieee, addr2, info_element->len, info_element->data);
 			}
 		}
@@ -1739,7 +1754,8 @@ int rtllib_parse_info_param(struct rtllib_device *ieee,
 					     length, info_element->id);
 			/* We stop processing but don't return an error here
 			 * because some misbehaviour APs break this rule. ie.
-			 * Orinoco AP1000. */
+			 * Orinoco AP1000.
+			 */
 			break;
 		}
 
@@ -1908,7 +1924,7 @@ int rtllib_parse_info_param(struct rtllib_device *ieee,
 				   info_element->data[2] == 0x4c &&
 				   info_element->data[3] == 0x033) {
 
-						tmp_htcap_len = min(info_element->len, (u8)MAX_IE_LEN);
+						tmp_htcap_len = min_t(u8, info_element->len, MAX_IE_LEN);
 						if (tmp_htcap_len != 0) {
 							network->bssht.bdHTSpecVer = HT_SPEC_VER_EWC;
 							network->bssht.bdHTCapLen = tmp_htcap_len > sizeof(network->bssht.bdHTCapBuf) ?
@@ -1932,7 +1948,7 @@ int rtllib_parse_info_param(struct rtllib_device *ieee,
 				    info_element->data[1] == 0x90 &&
 				    info_element->data[2] == 0x4c &&
 				    info_element->data[3] == 0x034) {
-					tmp_htinfo_len = min(info_element->len, (u8)MAX_IE_LEN);
+					tmp_htinfo_len = min_t(u8, info_element->len, MAX_IE_LEN);
 					if (tmp_htinfo_len != 0) {
 						network->bssht.bdHTSpecVer = HT_SPEC_VER_EWC;
 						if (tmp_htinfo_len) {
@@ -1953,7 +1969,7 @@ int rtllib_parse_info_param(struct rtllib_device *ieee,
 					    info_element->data[1] == 0xe0 &&
 					    info_element->data[2] == 0x4c &&
 					    info_element->data[3] == 0x02) {
-						ht_realtek_agg_len = min(info_element->len, (u8)MAX_IE_LEN);
+						ht_realtek_agg_len = min_t(u8, info_element->len, MAX_IE_LEN);
 						memcpy(ht_realtek_agg_buf, info_element->data, info_element->len);
 					}
 					if (ht_realtek_agg_len >= 5) {
@@ -2083,7 +2099,7 @@ int rtllib_parse_info_param(struct rtllib_device *ieee,
 		case MFIE_TYPE_HT_CAP:
 			RTLLIB_DEBUG_SCAN("MFIE_TYPE_HT_CAP: %d bytes\n",
 					     info_element->len);
-			tmp_htcap_len = min(info_element->len, (u8)MAX_IE_LEN);
+			tmp_htcap_len = min_t(u8, info_element->len, MAX_IE_LEN);
 			if (tmp_htcap_len != 0) {
 				network->bssht.bdHTSpecVer = HT_SPEC_VER_EWC;
 				network->bssht.bdHTCapLen = tmp_htcap_len > sizeof(network->bssht.bdHTCapBuf) ?
@@ -2110,7 +2126,7 @@ int rtllib_parse_info_param(struct rtllib_device *ieee,
 		case MFIE_TYPE_HT_INFO:
 			RTLLIB_DEBUG_SCAN("MFIE_TYPE_HT_INFO: %d bytes\n",
 					     info_element->len);
-			tmp_htinfo_len = min(info_element->len, (u8)MAX_IE_LEN);
+			tmp_htinfo_len = min_t(u8, info_element->len, MAX_IE_LEN);
 			if (tmp_htinfo_len) {
 				network->bssht.bdHTSpecVer = HT_SPEC_VER_IEEE;
 				network->bssht.bdHTInfoLen = tmp_htinfo_len >
@@ -2142,8 +2158,8 @@ int rtllib_parse_info_param(struct rtllib_device *ieee,
 			}
 			break;
 		case MFIE_TYPE_QOS_PARAMETER:
-			printk(KERN_ERR
-			       "QoS Error need to parse QOS_PARAMETER IE\n");
+			netdev_err(ieee->dev,
+				   "QoS Error need to parse QOS_PARAMETER IE\n");
 			break;
 
 		case MFIE_TYPE_COUNTRY:
@@ -2192,13 +2208,6 @@ static inline int rtllib_network_init(
 	struct rtllib_network *network,
 	struct rtllib_rx_stats *stats)
 {
-
-	/*
-	network->qos_data.active = 0;
-	network->qos_data.supported = 0;
-	network->qos_data.param_count = 0;
-	network->qos_data.old_param_count = 0;
-	*/
 	memset(&network->qos_data, 0, sizeof(struct rtllib_qos_data));
 
 	/* Pull out fixed field data */
@@ -2291,7 +2300,8 @@ static inline int is_same_network(struct rtllib_network *src,
 	/* A network is only a duplicate if the channel, BSSID, ESSID
 	 * and the capability field (in particular IBSS and BSS) all match.
 	 * We treat all <hidden> with the same BSSID and channel
-	 * as one network */
+	 * as one network
+	 */
 	return (((src->ssid_len == dst->ssid_len) || (!ssidbroad)) &&
 		(src->channel == dst->channel) &&
 		!memcmp(src->bssid, dst->bssid, ETH_ALEN) &&
@@ -2422,7 +2432,7 @@ static inline int is_beacon(__le16 fc)
 static int IsPassiveChannel(struct rtllib_device *rtllib, u8 channel)
 {
 	if (MAX_CHANNEL_NUMBER < channel) {
-		printk(KERN_INFO "%s(): Invalid Channel\n", __func__);
+		netdev_info(rtllib->dev, "%s(): Invalid Channel\n", __func__);
 		return 0;
 	}
 
@@ -2435,7 +2445,7 @@ static int IsPassiveChannel(struct rtllib_device *rtllib, u8 channel)
 int rtllib_legal_channel(struct rtllib_device *rtllib, u8 channel)
 {
 	if (MAX_CHANNEL_NUMBER < channel) {
-		printk(KERN_INFO "%s(): Invalid Channel\n", __func__);
+		netdev_info(rtllib->dev, "%s(): Invalid Channel\n", __func__);
 		return 0;
 	}
 	if (rtllib->active_channel_map[channel] > 0)
@@ -2501,8 +2511,9 @@ static inline void rtllib_process_probe_response(
 	if (WLAN_FC_GET_STYPE(le16_to_cpu(beacon->header.frame_ctl)) ==
 	    RTLLIB_STYPE_PROBE_RESP) {
 		if (IsPassiveChannel(ieee, network->channel)) {
-			printk(KERN_INFO "GetScanInfo(): For Global Domain, filter probe response at channel(%d).\n",
-			       network->channel);
+			netdev_info(ieee->dev,
+				    "GetScanInfo(): For Global Domain, filter probe response at channel(%d).\n",
+				    network->channel);
 			goto free_network;
 		}
 	}
@@ -2512,10 +2523,12 @@ static inline void rtllib_process_probe_response(
 	 *
 	 * NOTE:  This search is definitely not optimized.  Once its doing
 	 *	the "right thing" we'll optimize it for efficiency if
-	 *	necessary */
+	 *	necessary
+	 */
 
 	/* Search for this entry in the list and update it if it is
-	 * already there. */
+	 * already there.
+	 */
 
 	spin_lock_irqsave(&ieee->lock, flags);
 	if (is_same_network(&ieee->current_network, network,
@@ -2544,7 +2557,8 @@ static inline void rtllib_process_probe_response(
 	}
 
 	/* If we didn't find a match, then get a new network slot to initialize
-	 * with this beacon's information */
+	 * with this beacon's information
+	 */
 	if (&target->list == &ieee->network_list) {
 		if (list_empty(&ieee->network_free_list)) {
 			/* If there are no more slots, expire the oldest */
@@ -2611,7 +2625,6 @@ static inline void rtllib_process_probe_response(
 	}
 free_network:
 	kfree(network);
-	return;
 }
 
 void rtllib_rx_mgt(struct rtllib_device *ieee,
diff --git a/drivers/staging/rtl8192e/rtllib_softmac.c b/drivers/staging/rtl8192e/rtllib_softmac.c
index d992a75..23b7a4c 100644
--- a/drivers/staging/rtl8192e/rtllib_softmac.c
+++ b/drivers/staging/rtl8192e/rtllib_softmac.c
@@ -68,7 +68,8 @@ static void rtllib_MFIE_Brate(struct rtllib_device *ieee, u8 **tag_p)
 	}
 
 	/* We may add an option for custom rates that specific HW
-	 * might support */
+	 * might support
+	 */
 	*tag_p = tag;
 }
 
@@ -89,7 +90,8 @@ static void rtllib_MFIE_Grate(struct rtllib_device *ieee, u8 **tag_p)
 		*tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_54MB;
 	}
 	/* We may add an option for custom rates that specific HW might
-	 * support */
+	 * support
+	 */
 	*tag_p = tag;
 }
 
@@ -124,7 +126,7 @@ void rtllib_TURBO_Info(struct rtllib_device *ieee, u8 **tag_p)
 	*tag++ = 0x00;
 
 	*tag_p = tag;
-	printk(KERN_ALERT "This is enable turbo mode IE process\n");
+	netdev_alert(ieee->dev, "This is enable turbo mode IE process\n");
 }
 
 static void enqueue_mgmt(struct rtllib_device *ieee, struct sk_buff *skb)
@@ -133,8 +135,7 @@ static void enqueue_mgmt(struct rtllib_device *ieee, struct sk_buff *skb)
 
 	nh = (ieee->mgmt_queue_head + 1) % MGMT_QUEUE_NUM;
 
-/*
- * if the queue is full but we have newer frames then
+/* if the queue is full but we have newer frames then
  * just overwrites the oldest.
  *
  * if (nh == ieee->mgmt_queue_tail)
@@ -188,7 +189,7 @@ MgntQuery_TxRateExcludeCCKRates(struct rtllib_device *ieee)
 
 	if (QueryRate == 0) {
 		QueryRate = 12;
-		printk(KERN_INFO "No BasicRate found!!\n");
+		netdev_info(ieee->dev, "No BasicRate found!!\n");
 	}
 	return QueryRate;
 }
@@ -273,12 +274,14 @@ inline void softmac_mgmt_xmit(struct sk_buff *skb, struct rtllib_device *ieee)
 		if (!ieee->check_nic_enough_desc(ieee->dev, tcb_desc->queue_index) ||
 		    (skb_queue_len(&ieee->skb_waitQ[tcb_desc->queue_index]) != 0) ||
 		    (ieee->queue_stop)) {
-			/* insert the skb packet to the management queue */
-			/* as for the completion function, it does not need
+			/* insert the skb packet to the management queue
+			 *
+			 * as for the completion function, it does not need
 			 * to check it any more.
-			 * */
-			printk(KERN_INFO "%s():insert to waitqueue, queue_index"
-			       ":%d!\n", __func__, tcb_desc->queue_index);
+			 */
+			netdev_info(ieee->dev,
+			       "%s():insert to waitqueue, queue_index:%d!\n",
+			       __func__, tcb_desc->queue_index);
 			skb_queue_tail(&ieee->skb_waitQ[tcb_desc->queue_index],
 				       skb);
 		} else {
@@ -401,7 +404,7 @@ static void rtllib_send_beacon(struct rtllib_device *ieee)
 
 	if (ieee->beacon_txing && ieee->ieee_up)
 		mod_timer(&ieee->beacon_timer, jiffies +
-			  (MSECS(ieee->current_network.beacon_interval - 5)));
+			  (msecs_to_jiffies(ieee->current_network.beacon_interval - 5)));
 }
 
 
@@ -416,40 +419,33 @@ static void rtllib_send_beacon_cb(unsigned long _ieee)
 	spin_unlock_irqrestore(&ieee->beacon_lock, flags);
 }
 
-/*
- * Description:
- *	      Enable network monitor mode, all rx packets will be received.
- */
+/* Enables network monitor mode, all rx packets will be received. */
 void rtllib_EnableNetMonitorMode(struct net_device *dev,
 		bool bInitState)
 {
 	struct rtllib_device *ieee = netdev_priv_rsl(dev);
 
-	printk(KERN_INFO "========>Enter Monitor Mode\n");
+	netdev_info(dev, "========>Enter Monitor Mode\n");
 
 	ieee->AllowAllDestAddrHandler(dev, true, !bInitState);
 }
 
 
-/*
- *      Description:
- *	      Disable network network monitor mode, only packets destinated to
- *	      us will be received.
+/* Disables network monitor mode. Only packets destinated to
+ * us will be received.
  */
 void rtllib_DisableNetMonitorMode(struct net_device *dev,
 		bool bInitState)
 {
 	struct rtllib_device *ieee = netdev_priv_rsl(dev);
 
-	printk(KERN_INFO "========>Exit Monitor Mode\n");
+	netdev_info(dev, "========>Exit Monitor Mode\n");
 
 	ieee->AllowAllDestAddrHandler(dev, false, !bInitState);
 }
 
 
-/*
- * Description:
- * This enables the specialized promiscuous mode required by Intel.
+/* Enables the specialized promiscuous mode required by Intel.
  * In this mode, Intel intends to hear traffics from/to other STAs in the
  * same BSS. Therefore we don't have to disable checking BSSID and we only need
  * to allow all dest. BUT: if we enable checking BSSID then we can't recv
@@ -462,7 +458,7 @@ void rtllib_EnableIntelPromiscuousMode(struct net_device *dev,
 
 	struct rtllib_device *ieee = netdev_priv_rsl(dev);
 
-	printk(KERN_INFO "========>Enter Intel Promiscuous Mode\n");
+	netdev_info(dev, "========>Enter Intel Promiscuous Mode\n");
 
 	ieee->AllowAllDestAddrHandler(dev, true, !bInitState);
 	ieee->SetHwRegHandler(dev, HW_VAR_CECHK_BSSID,
@@ -473,10 +469,8 @@ void rtllib_EnableIntelPromiscuousMode(struct net_device *dev,
 EXPORT_SYMBOL(rtllib_EnableIntelPromiscuousMode);
 
 
-/*
- * Description:
- *	      This disables the specialized promiscuous mode required by Intel.
- *	      See MgntEnableIntelPromiscuousMode for detail.
+/* Disables the specialized promiscuous mode required by Intel.
+ * See MgntEnableIntelPromiscuousMode for detail.
  */
 void rtllib_DisableIntelPromiscuousMode(struct net_device *dev,
 		bool bInitState)
@@ -485,7 +479,7 @@ void rtllib_DisableIntelPromiscuousMode(struct net_device *dev,
 
 	struct rtllib_device *ieee = netdev_priv_rsl(dev);
 
-	printk(KERN_INFO "========>Exit Intel Promiscuous Mode\n");
+	netdev_info(dev, "========>Exit Intel Promiscuous Mode\n");
 
 	ieee->AllowAllDestAddrHandler(dev, false, !bInitState);
 	ieee->SetHwRegHandler(dev, HW_VAR_CECHK_BSSID,
@@ -569,7 +563,8 @@ void rtllib_softmac_scan_syncro(struct rtllib_device *ieee, u8 is_mesh)
 		if (ieee->state == RTLLIB_LINKED)
 			goto out;
 		if (ieee->sync_scan_hurryup) {
-			printk(KERN_INFO "============>sync_scan_hurryup out\n");
+			netdev_info(ieee->dev,
+				    "============>sync_scan_hurryup out\n");
 			goto out;
 		}
 
@@ -614,8 +609,9 @@ static void rtllib_softmac_scan_wq(void *data)
 	down(&ieee->scan_sem);
 
 	if (ieee->eRFPowerState == eRfOff) {
-		printk(KERN_INFO "======>%s():rf state is eRfOff, return\n",
-		       __func__);
+		netdev_info(ieee->dev,
+			    "======>%s():rf state is eRfOff, return\n",
+			    __func__);
 		goto out1;
 	}
 
@@ -639,7 +635,7 @@ static void rtllib_softmac_scan_wq(void *data)
 		rtllib_send_probe_requests(ieee, 0);
 
 	queue_delayed_work_rsl(ieee->wq, &ieee->softmac_scan_wq,
-			       MSECS(RTLLIB_SOFTMAC_SCAN_TIME));
+			       msecs_to_jiffies(RTLLIB_SOFTMAC_SCAN_TIME));
 
 	up(&ieee->scan_sem);
 	return;
@@ -1238,8 +1234,8 @@ inline struct sk_buff *rtllib_association_req(struct rtllib_network *beacon,
 	PMKCacheIdx = SecIsInPMKIDList(ieee, ieee->current_network.bssid);
 	if (PMKCacheIdx >= 0) {
 		wpa_ie_len += 18;
-		printk(KERN_INFO "[PMK cache]: WPA2 IE length: %x\n",
-		       wpa_ie_len);
+		netdev_info(ieee->dev, "[PMK cache]: WPA2 IE length: %x\n",
+			    wpa_ie_len);
 	}
 	len = sizeof(struct rtllib_assoc_request_frame) + 2
 		+ beacon->ssid_len
@@ -1418,8 +1414,9 @@ inline struct sk_buff *rtllib_association_req(struct rtllib_network *beacon,
 	if (ieee->assocreq_ies)
 		memcpy(ieee->assocreq_ies, ies, ieee->assocreq_ies_len);
 	else {
-		printk(KERN_INFO "%s()Warning: can't alloc memory for assocreq"
-		       "_ies\n", __func__);
+		netdev_info(ieee->dev,
+			    "%s()Warning: can't alloc memory for assocreq_ies\n",
+			    __func__);
 		ieee->assocreq_ies_len = 0;
 	}
 	return skb;
@@ -1474,7 +1471,7 @@ static void rtllib_associate_step1(struct rtllib_device *ieee, u8 *daddr)
 	if (!skb)
 		rtllib_associate_abort(ieee);
 	else {
-		ieee->state = RTLLIB_ASSOCIATING_AUTHENTICATING ;
+		ieee->state = RTLLIB_ASSOCIATING_AUTHENTICATING;
 		RTLLIB_DEBUG_MGMT("Sending authentication request\n");
 		softmac_mgmt_xmit(skb, ieee);
 		if (!timer_pending(&ieee->associate_timer)) {
@@ -1503,8 +1500,7 @@ static void rtllib_auth_challenge(struct rtllib_device *ieee, u8 *challenge, int
 		*(c++) = chlen;
 		memcpy(c, challenge, chlen);
 
-		RTLLIB_DEBUG_MGMT("Sending authentication challenge "
-				  "response\n");
+		RTLLIB_DEBUG_MGMT("Sending authentication challenge response\n");
 
 		rtllib_encrypt_fragment(ieee, skb,
 					sizeof(struct rtllib_hdr_3addr));
@@ -1543,9 +1539,9 @@ static void rtllib_associate_complete_wq(void *data)
 				     associate_complete_wq);
 	struct rt_pwr_save_ctrl *pPSC = (struct rt_pwr_save_ctrl *)
 					(&(ieee->PowerSaveControl));
-	printk(KERN_INFO "Associated successfully\n");
+	netdev_info(ieee->dev, "Associated successfully\n");
 	if (!ieee->is_silent_reset) {
-		printk(KERN_INFO "normal associate\n");
+		netdev_info(ieee->dev, "normal associate\n");
 		notify_wx_assoc_event(ieee);
 	}
 
@@ -1554,20 +1550,20 @@ static void rtllib_associate_complete_wq(void *data)
 	if (rtllib_is_54g(&ieee->current_network) &&
 	   (ieee->modulation & RTLLIB_OFDM_MODULATION)) {
 		ieee->rate = 108;
-		printk(KERN_INFO"Using G rates:%d\n", ieee->rate);
+		netdev_info(ieee->dev, "Using G rates:%d\n", ieee->rate);
 	} else {
 		ieee->rate = 22;
 		ieee->SetWirelessMode(ieee->dev, IEEE_B);
-		printk(KERN_INFO"Using B rates:%d\n", ieee->rate);
+		netdev_info(ieee->dev, "Using B rates:%d\n", ieee->rate);
 	}
 	if (ieee->pHTInfo->bCurrentHTSupport && ieee->pHTInfo->bEnableHT) {
-		printk(KERN_INFO "Successfully associated, ht enabled\n");
+		netdev_info(ieee->dev, "Successfully associated, ht enabled\n");
 		HTOnAssocRsp(ieee);
 	} else {
-		printk(KERN_INFO "Successfully associated, ht not "
-		       "enabled(%d, %d)\n",
-		       ieee->pHTInfo->bCurrentHTSupport,
-		       ieee->pHTInfo->bEnableHT);
+		netdev_info(ieee->dev,
+			    "Successfully associated, ht not enabled(%d, %d)\n",
+			    ieee->pHTInfo->bCurrentHTSupport,
+			    ieee->pHTInfo->bEnableHT);
 		memset(ieee->dot11HTOperationalRateSet, 0, 16);
 	}
 	ieee->LinkDetectInfo.SlotNum = 2 * (1 +
@@ -1582,7 +1578,7 @@ static void rtllib_associate_complete_wq(void *data)
 	ieee->link_change(ieee->dev);
 
 	if (ieee->is_silent_reset) {
-		printk(KERN_INFO "silent reset associate\n");
+		netdev_info(ieee->dev, "silent reset associate\n");
 		ieee->is_silent_reset = false;
 	}
 
@@ -1623,8 +1619,9 @@ static void rtllib_associate_procedure_wq(void *data)
 		 ieee->current_network.channel);
 	HTSetConnectBwMode(ieee, HT_CHANNEL_WIDTH_20, HT_EXTCHNL_OFFSET_NO_EXT);
 	if (ieee->eRFPowerState == eRfOff) {
-		RT_TRACE(COMP_DBG, "=============>%s():Rf state is eRfOff,"
-			 " schedule ipsleave wq again,return\n", __func__);
+		RT_TRACE(COMP_DBG,
+			 "=============>%s():Rf state is eRfOff, schedule ipsleave wq again,return\n",
+			 __func__);
 		if (ieee->rtllib_ips_leave_wq != NULL)
 			ieee->rtllib_ips_leave_wq(ieee->dev);
 		up(&ieee->wx_sem);
@@ -1705,8 +1702,8 @@ inline void rtllib_softmac_new_net(struct rtllib_device *ieee,
 		   (!apset && ssidset && ssidbroad && ssidmatch) ||
 		   (ieee->is_roaming && ssidset && ssidbroad && ssidmatch)) {
 			/* if the essid is hidden replace it with the
-			* essid provided by the user.
-			*/
+			 * essid provided by the user.
+			 */
 			if (!ssidbroad) {
 				strncpy(tmp_ssid, ieee->current_network.ssid,
 					IW_ESSID_MAX_SIZE);
@@ -1719,15 +1716,15 @@ inline void rtllib_softmac_new_net(struct rtllib_device *ieee,
 					IW_ESSID_MAX_SIZE);
 				ieee->current_network.ssid_len = tmp_ssid_len;
 			}
-			printk(KERN_INFO"Linking with %s,channel:%d, qos:%d, "
-			       "myHT:%d, networkHT:%d, mode:%x cur_net.flags"
-			       ":0x%x\n", ieee->current_network.ssid,
-			       ieee->current_network.channel,
-			       ieee->current_network.qos_data.supported,
-			       ieee->pHTInfo->bEnableHT,
-			       ieee->current_network.bssht.bdSupportHT,
-			       ieee->current_network.mode,
-			       ieee->current_network.flags);
+			netdev_info(ieee->dev,
+				    "Linking with %s,channel:%d, qos:%d, myHT:%d, networkHT:%d, mode:%x cur_net.flags:0x%x\n",
+				    ieee->current_network.ssid,
+				    ieee->current_network.channel,
+				    ieee->current_network.qos_data.supported,
+				    ieee->pHTInfo->bEnableHT,
+				    ieee->current_network.bssht.bdSupportHT,
+				    ieee->current_network.mode,
+				    ieee->current_network.flags);
 
 			if ((rtllib_act_scanning(ieee, false)) &&
 			   !(ieee->softmac_features & IEEE_SOFTMAC_SCAN))
@@ -1758,11 +1755,11 @@ inline void rtllib_softmac_new_net(struct rtllib_device *ieee,
 					(ieee->modulation & RTLLIB_OFDM_MODULATION)) {
 					ieee->rate = 108;
 					ieee->SetWirelessMode(ieee->dev, IEEE_G);
-					printk(KERN_INFO"Using G rates\n");
+					netdev_info(ieee->dev, "Using G rates\n");
 				} else {
 					ieee->rate = 22;
 					ieee->SetWirelessMode(ieee->dev, IEEE_B);
-					printk(KERN_INFO"Using B rates\n");
+					netdev_info(ieee->dev, "Using B rates\n");
 				}
 				memset(ieee->dot11HTOperationalRateSet, 0, 16);
 				ieee->state = RTLLIB_LINKED;
@@ -1965,7 +1962,7 @@ static inline void rtllib_rx_assoc_rq(struct rtllib_device *ieee,
 	if (assoc_rq_parse(skb, dest) != -1)
 		rtllib_resp_to_assoc_rq(ieee, dest);
 
-	printk(KERN_INFO"New client associated: %pM\n", dest);
+	netdev_info(ieee->dev, "New client associated: %pM\n", dest);
 }
 
 void rtllib_sta_ps_send_null_frame(struct rtllib_device *ieee, short pwr)
@@ -2004,13 +2001,16 @@ static short rtllib_sta_ps_sleep(struct rtllib_device *ieee, u64 *time)
 	timeout = ieee->current_network.beacon_interval;
 	ieee->current_network.dtim_data = RTLLIB_DTIM_INVALID;
 	/* there's no need to nofity AP that I find you buffered
-	 * with broadcast packet */
+	 * with broadcast packet
+	 */
 	if (dtim & (RTLLIB_DTIM_UCAST & ieee->ps))
 		return 2;
 
-	if (!time_after(jiffies, ieee->dev->trans_start + MSECS(timeout)))
+	if (!time_after(jiffies,
+			ieee->dev->trans_start + msecs_to_jiffies(timeout)))
 		return 0;
-	if (!time_after(jiffies, ieee->last_rx_ps_time + MSECS(timeout)))
+	if (!time_after(jiffies,
+			ieee->last_rx_ps_time + msecs_to_jiffies(timeout)))
 		return 0;
 	if ((ieee->softmac_features & IEEE_SOFTMAC_SINGLE_QUEUE) &&
 	    (ieee->mgmt_queue_tail != ieee->mgmt_queue_head))
@@ -2060,7 +2060,7 @@ static short rtllib_sta_ps_sleep(struct rtllib_device *ieee, u64 *time)
 			}
 
 		*time = ieee->current_network.last_dtim_sta_time
-			+ MSECS(ieee->current_network.beacon_interval *
+			+ msecs_to_jiffies(ieee->current_network.beacon_interval *
 			LPSAwakeIntvl_tmp);
 	}
 	}
@@ -2081,10 +2081,9 @@ static inline void rtllib_sta_ps(struct rtllib_device *ieee)
 	if ((ieee->ps == RTLLIB_PS_DISABLED ||
 	     ieee->iw_mode != IW_MODE_INFRA ||
 	     ieee->state != RTLLIB_LINKED)) {
-		RT_TRACE(COMP_DBG, "=====>%s(): no need to ps,wake up!! "
-			 "ieee->ps is %d, ieee->iw_mode is %d, ieee->state"
-			 " is %d\n", __func__, ieee->ps, ieee->iw_mode,
-			  ieee->state);
+		RT_TRACE(COMP_DBG,
+			 "=====>%s(): no need to ps,wake up!! ieee->ps is %d, ieee->iw_mode is %d, ieee->state is %d\n",
+			 __func__, ieee->ps, ieee->iw_mode, ieee->state);
 		spin_lock_irqsave(&ieee->mgmt_tx_lock, flags2);
 		rtllib_sta_wakeup(ieee, 1);
 
@@ -2199,8 +2198,8 @@ static void rtllib_process_action(struct rtllib_device *ieee, struct sk_buff *sk
 	u8 category = 0;
 
 	if (act == NULL) {
-		RTLLIB_DEBUG(RTLLIB_DL_ERR, "error to get payload of "
-			     "action frame\n");
+		RTLLIB_DEBUG(RTLLIB_DL_ERR,
+			     "error to get payload of action frame\n");
 		return;
 	}
 
@@ -2223,7 +2222,6 @@ static void rtllib_process_action(struct rtllib_device *ieee, struct sk_buff *sk
 	default:
 		break;
 	}
-	return;
 }
 
 inline int rtllib_rx_assoc_resp(struct rtllib_device *ieee, struct sk_buff *skb,
@@ -2285,16 +2283,18 @@ inline int rtllib_rx_assoc_resp(struct rtllib_device *ieee, struct sk_buff *skb,
 				memcpy(ieee->assocresp_ies, ies,
 				       ieee->assocresp_ies_len);
 			else {
-				printk(KERN_INFO "%s()Warning: can't alloc "
-				       "memory for assocresp_ies\n", __func__);
+				netdev_info(ieee->dev,
+					    "%s()Warning: can't alloc memory for assocresp_ies\n",
+					    __func__);
 				ieee->assocresp_ies_len = 0;
 			}
 			rtllib_associate_complete(ieee);
 		} else {
 			/* aid could not been allocated */
 			ieee->softmac_stats.rx_ass_err++;
-			printk(KERN_INFO "Association response status code 0x%x\n",
-				errcode);
+			netdev_info(ieee->dev,
+				    "Association response status code 0x%x\n",
+				    errcode);
 			RTLLIB_DEBUG_MGMT(
 				"Association response status code 0x%x\n",
 				errcode);
@@ -2308,72 +2308,71 @@ inline int rtllib_rx_assoc_resp(struct rtllib_device *ieee, struct sk_buff *skb,
 	return 0;
 }
 
-inline int rtllib_rx_auth(struct rtllib_device *ieee, struct sk_buff *skb,
-			  struct rtllib_rx_stats *rx_stats)
+static void rtllib_rx_auth_resp(struct rtllib_device *ieee, struct sk_buff *skb)
 {
 	u16 errcode;
 	u8 *challenge;
 	int chlen = 0;
 	bool bSupportNmode = true, bHalfSupportNmode = false;
 
-	if (ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE) {
-		if (ieee->state == RTLLIB_ASSOCIATING_AUTHENTICATING &&
-		    (ieee->iw_mode == IW_MODE_INFRA)) {
-			RTLLIB_DEBUG_MGMT("Received authentication response");
+	errcode = auth_parse(skb, &challenge, &chlen);
 
-			errcode = auth_parse(skb, &challenge, &chlen);
-			if (0 == errcode) {
-				if (ieee->open_wep || !challenge) {
-					ieee->state = RTLLIB_ASSOCIATING_AUTHENTICATED;
-					ieee->softmac_stats.rx_auth_rs_ok++;
-					if (!(ieee->pHTInfo->IOTAction &
-					    HT_IOT_ACT_PURE_N_MODE)) {
-						if (!ieee->GetNmodeSupportBySecCfg(ieee->dev)) {
-							if (IsHTHalfNmodeAPs(ieee)) {
-								bSupportNmode = true;
-								bHalfSupportNmode = true;
-							} else {
-								bSupportNmode = false;
-								bHalfSupportNmode = false;
-							}
-						}
-					}
-					/* Dummy wirless mode setting to avoid
-					 * encryption issue */
-					if (bSupportNmode) {
-						ieee->SetWirelessMode(ieee->dev,
-						   ieee->current_network.mode);
-					} else {
-						/*TODO*/
-						ieee->SetWirelessMode(ieee->dev,
-								      IEEE_G);
-					}
-
-					if (ieee->current_network.mode ==
-					    IEEE_N_24G && bHalfSupportNmode) {
-						printk(KERN_INFO "======>enter "
-						       "half N mode\n");
-						ieee->bHalfWirelessN24GMode =
-									 true;
-					} else
-						ieee->bHalfWirelessN24GMode =
-									 false;
-
-					rtllib_associate_step2(ieee);
+	if (errcode) {
+		ieee->softmac_stats.rx_auth_rs_err++;
+		RTLLIB_DEBUG_MGMT("Authentication respose status code 0x%x",
+				  errcode);
+
+		netdev_info(ieee->dev,
+			    "Authentication respose status code 0x%x", errcode);
+		rtllib_associate_abort(ieee);
+		return;
+	}
+
+	if (ieee->open_wep || !challenge) {
+		ieee->state = RTLLIB_ASSOCIATING_AUTHENTICATED;
+		ieee->softmac_stats.rx_auth_rs_ok++;
+		if (!(ieee->pHTInfo->IOTAction & HT_IOT_ACT_PURE_N_MODE)) {
+			if (!ieee->GetNmodeSupportBySecCfg(ieee->dev)) {
+				if (IsHTHalfNmodeAPs(ieee)) {
+					bSupportNmode = true;
+					bHalfSupportNmode = true;
 				} else {
-					rtllib_auth_challenge(ieee, challenge,
-							      chlen);
+					bSupportNmode = false;
+					bHalfSupportNmode = false;
 				}
-			} else {
-				ieee->softmac_stats.rx_auth_rs_err++;
-				RTLLIB_DEBUG_MGMT("Authentication respose"
-						  " status code 0x%x", errcode);
-
-				printk(KERN_INFO "Authentication respose "
-				       "status code 0x%x", errcode);
-				rtllib_associate_abort(ieee);
 			}
+		}
+		/* Dummy wirless mode setting to avoid encryption issue */
+		if (bSupportNmode) {
+			ieee->SetWirelessMode(ieee->dev,
+					      ieee->current_network.mode);
+		} else {
+			/*TODO*/
+			ieee->SetWirelessMode(ieee->dev, IEEE_G);
+		}
 
+		if ((ieee->current_network.mode == IEEE_N_24G) &&
+		    bHalfSupportNmode) {
+			netdev_info(ieee->dev, "======>enter half N mode\n");
+			ieee->bHalfWirelessN24GMode = true;
+		} else {
+			ieee->bHalfWirelessN24GMode = false;
+		}
+		rtllib_associate_step2(ieee);
+	} else {
+		rtllib_auth_challenge(ieee, challenge,  chlen);
+	}
+}
+
+inline int rtllib_rx_auth(struct rtllib_device *ieee, struct sk_buff *skb,
+			  struct rtllib_rx_stats *rx_stats)
+{
+
+	if (ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE) {
+		if (ieee->state == RTLLIB_ASSOCIATING_AUTHENTICATING &&
+		    (ieee->iw_mode == IW_MODE_INFRA)) {
+			RTLLIB_DEBUG_MGMT("Received authentication response");
+			rtllib_rx_auth_resp(ieee, skb);
 		} else if (ieee->iw_mode == IW_MODE_MASTER) {
 			rtllib_rx_auth_rq(ieee, skb);
 		}
@@ -2389,15 +2388,15 @@ inline int rtllib_rx_deauth(struct rtllib_device *ieee, struct sk_buff *skb)
 		return 0;
 
 	/* FIXME for now repeat all the association procedure
-	* both for disassociation and deauthentication
-	*/
+	 * both for disassociation and deauthentication
+	 */
 	if ((ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE) &&
 	    ieee->state == RTLLIB_LINKED &&
 	    (ieee->iw_mode == IW_MODE_INFRA)) {
-		printk(KERN_INFO "==========>received disassoc/deauth(%x) "
-		       "frame, reason code:%x\n",
-		       WLAN_FC_GET_STYPE(header->frame_ctl),
-		       ((struct rtllib_disassoc *)skb->data)->reason);
+		netdev_info(ieee->dev,
+			    "==========>received disassoc/deauth(%x) frame, reason code:%x\n",
+			    WLAN_FC_GET_STYPE(header->frame_ctl),
+			    ((struct rtllib_disassoc *)skb->data)->reason);
 		ieee->state = RTLLIB_ASSOCIATING;
 		ieee->softmac_stats.reassoc++;
 		ieee->is_roaming = true;
@@ -2450,7 +2449,6 @@ inline int rtllib_rx_frame_softmac(struct rtllib_device *ieee,
 		break;
 	default:
 		return -1;
-		break;
 	}
 	return 0;
 }
@@ -2494,16 +2492,17 @@ void rtllib_softmac_xmit(struct rtllib_txb *txb, struct rtllib_device *ieee)
 		ieee->stats.multicast++;
 
 	/* if xmit available, just xmit it immediately, else just insert it to
-	 * the wait queue */
+	 * the wait queue
+	 */
 	for (i = 0; i < txb->nr_frags; i++) {
 		queue_len = skb_queue_len(&ieee->skb_waitQ[queue_index]);
-		if ((queue_len  != 0) ||\
+		if ((queue_len  != 0) ||
 		    (!ieee->check_nic_enough_desc(ieee->dev, queue_index)) ||
 		    (ieee->queue_stop)) {
-			/* insert the skb packet to the wait queue */
-			/* as for the completion function, it does not need
+			/* insert the skb packet to the wait queue
+			 * as for the completion function, it does not need
 			 * to check it any more.
-			 * */
+			 */
 			if (queue_len < 200)
 				skb_queue_tail(&ieee->skb_waitQ[queue_index],
 					       txb->fragments[i]);
@@ -2533,13 +2532,12 @@ static void rtllib_resume_tx(struct rtllib_device *ieee)
 		if (ieee->queue_stop) {
 			ieee->tx_pending.frag = i;
 			return;
-		} else {
-
-			ieee->softmac_data_hard_start_xmit(
-				ieee->tx_pending.txb->fragments[i],
-				ieee->dev, ieee->rate);
-			ieee->stats.tx_packets++;
 		}
+
+		ieee->softmac_data_hard_start_xmit(
+			ieee->tx_pending.txb->fragments[i],
+			ieee->dev, ieee->rate);
+		ieee->stats.tx_packets++;
 	}
 
 	rtllib_txb_free(ieee->tx_pending.txb);
@@ -2688,7 +2686,7 @@ static void rtllib_start_ibss_wq(void *data)
 	 * on the semaphore
 	 */
 	if (!ieee->proto_started) {
-		printk(KERN_INFO "==========oh driver down return\n");
+		netdev_info(ieee->dev, "==========oh driver down return\n");
 		return;
 	}
 	down(&ieee->wx_sem);
@@ -2724,7 +2722,7 @@ static void rtllib_start_ibss_wq(void *data)
 
 	/* the network definitively is not here.. create a new cell */
 	if (ieee->state == RTLLIB_NOLINK) {
-		printk(KERN_INFO "creating new IBSS cell\n");
+		netdev_info(ieee->dev, "creating new IBSS cell\n");
 		ieee->current_network.channel = ieee->IbssStartChnl;
 		if (!ieee->wap_set)
 			rtllib_randomize_cell(ieee);
@@ -2778,7 +2776,7 @@ static void rtllib_start_ibss_wq(void *data)
 		ieee->current_network.capability = WLAN_CAPABILITY_IBSS;
 	}
 
-	printk(KERN_INFO "%s(): ieee->mode = %d\n", __func__, ieee->mode);
+	netdev_info(ieee->dev, "%s(): ieee->mode = %d\n", __func__, ieee->mode);
 	if ((ieee->mode == IEEE_N_24G) || (ieee->mode == IEEE_N_5G))
 		HTUseDefaultSetting(ieee);
 	else
@@ -2808,7 +2806,8 @@ static void rtllib_start_ibss_wq(void *data)
 
 inline void rtllib_start_ibss(struct rtllib_device *ieee)
 {
-	queue_delayed_work_rsl(ieee->wq, &ieee->start_ibss_wq, MSECS(150));
+	queue_delayed_work_rsl(ieee->wq, &ieee->start_ibss_wq,
+			       msecs_to_jiffies(150));
 }
 
 /* this is called only in user context, with wx_sem held */
@@ -2881,18 +2880,18 @@ static void rtllib_associate_retry_wq(void *data)
 		goto exit;
 
 	/* until we do not set the state to RTLLIB_NOLINK
-	* there are no possibility to have someone else trying
-	* to start an association procedure (we get here with
-	* ieee->state = RTLLIB_ASSOCIATING).
-	* When we set the state to RTLLIB_NOLINK it is possible
-	* that the RX path run an attempt to associate, but
-	* both rtllib_softmac_check_all_nets and the
-	* RX path works with ieee->lock held so there are no
-	* problems. If we are still disassociated then start a scan.
-	* the lock here is necessary to ensure no one try to start
-	* an association procedure when we have just checked the
-	* state and we are going to start the scan.
-	*/
+	 * there are no possibility to have someone else trying
+	 * to start an association procedure (we get here with
+	 * ieee->state = RTLLIB_ASSOCIATING).
+	 * When we set the state to RTLLIB_NOLINK it is possible
+	 * that the RX path run an attempt to associate, but
+	 * both rtllib_softmac_check_all_nets and the
+	 * RX path works with ieee->lock held so there are no
+	 * problems. If we are still disassociated then start a scan.
+	 * the lock here is necessary to ensure no one try to start
+	 * an association procedure when we have just checked the
+	 * state and we are going to start the scan.
+	 */
 	ieee->beinretry = true;
 	ieee->state = RTLLIB_NOLINK;
 
@@ -3180,8 +3179,9 @@ void rtllib_softmac_free(struct rtllib_device *ieee)
 static int rtllib_wpa_enable(struct rtllib_device *ieee, int value)
 {
 	/* This is called when wpa_supplicant loads and closes the driver
-	 * interface. */
-	printk(KERN_INFO "%s WPA\n", value ? "enabling" : "disabling");
+	 * interface.
+	 */
+	netdev_info(ieee->dev, "%s WPA\n", value ? "enabling" : "disabling");
 	ieee->wpa_enabled = value;
 	memset(ieee->ap_mac_addr, 0, 6);
 	return 0;
@@ -3212,7 +3212,7 @@ static int rtllib_wpa_mlme(struct rtllib_device *ieee, int command, int reason)
 		break;
 
 	default:
-		printk(KERN_INFO "Unknown MLME request: %d\n", command);
+		netdev_info(ieee->dev, "Unknown MLME request: %d\n", command);
 		ret = -EOPNOTSUPP;
 	}
 
@@ -3343,7 +3343,7 @@ static int rtllib_wpa_set_param(struct rtllib_device *ieee, u8 name, u32 value)
 		break;
 
 	default:
-		printk(KERN_INFO "Unknown WPA param: %d\n", name);
+		netdev_info(ieee->dev, "Unknown WPA param: %d\n", name);
 		ret = -EOPNOTSUPP;
 	}
 
@@ -3369,8 +3369,8 @@ static int rtllib_wpa_set_encryption(struct rtllib_device *ieee,
 	if (param_len !=
 	    (int) ((char *) param->u.crypt.key - (char *) param) +
 	    param->u.crypt.key_len) {
-		printk(KERN_INFO "Len mismatch %d, %d\n", param_len,
-			       param->u.crypt.key_len);
+		netdev_info(ieee->dev, "Len mismatch %d, %d\n", param_len,
+			    param->u.crypt.key_len);
 		return -EINVAL;
 	}
 	if (is_broadcast_ether_addr(param->sta_addr)) {
@@ -3410,8 +3410,8 @@ static int rtllib_wpa_set_encryption(struct rtllib_device *ieee,
 		ops = lib80211_get_crypto_ops(param->u.crypt.alg);
 	}
 	if (ops == NULL) {
-		printk(KERN_INFO "unknown crypto alg '%s'\n",
-		       param->u.crypt.alg);
+		netdev_info(ieee->dev, "unknown crypto alg '%s'\n",
+			    param->u.crypt.alg);
 		param->u.crypt.err = IEEE_CRYPT_ERR_UNKNOWN_ALG;
 		ret = -EINVAL;
 		goto done;
@@ -3421,12 +3421,11 @@ static int rtllib_wpa_set_encryption(struct rtllib_device *ieee,
 
 		lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt);
 
-		new_crypt = kmalloc(sizeof(*new_crypt), GFP_KERNEL);
+		new_crypt = kzalloc(sizeof(*new_crypt), GFP_KERNEL);
 		if (new_crypt == NULL) {
 			ret = -ENOMEM;
 			goto done;
 		}
-		memset(new_crypt, 0, sizeof(struct lib80211_crypt_data));
 		new_crypt->ops = ops;
 		if (new_crypt->ops)
 			new_crypt->priv =
@@ -3446,7 +3445,7 @@ static int rtllib_wpa_set_encryption(struct rtllib_device *ieee,
 	    (*crypt)->ops->set_key(param->u.crypt.key,
 	    param->u.crypt.key_len, param->u.crypt.seq,
 	    (*crypt)->priv) < 0) {
-		printk(KERN_INFO "key setting failed\n");
+		netdev_info(ieee->dev, "key setting failed\n");
 		param->u.crypt.err = IEEE_CRYPT_ERR_KEY_SET_FAILED;
 		ret = -EINVAL;
 		goto done;
@@ -3486,12 +3485,13 @@ static int rtllib_wpa_set_encryption(struct rtllib_device *ieee,
 	 * generate new IEEE 802.11 authentication which may end up in looping
 	 * with IEEE 802.1X.  If your hardware requires a reset after WEP
 	 * configuration (for example... Prism2), implement the reset_port in
-	 * the callbacks structures used to initialize the 802.11 stack. */
+	 * the callbacks structures used to initialize the 802.11 stack.
+	 */
 	if (ieee->reset_on_keychange &&
 	    ieee->iw_mode != IW_MODE_INFRA &&
 	    ieee->reset_port &&
 	    ieee->reset_port(ieee->dev)) {
-		printk(KERN_INFO "reset_port failed\n");
+		netdev_info(ieee->dev, "reset_port failed\n");
 		param->u.crypt.err = IEEE_CRYPT_ERR_CARD_CONF_FAILED;
 		return -EINVAL;
 	}
@@ -3634,8 +3634,8 @@ int rtllib_wpa_supplicant_ioctl(struct rtllib_device *ieee, struct iw_point *p,
 		break;
 
 	default:
-		printk(KERN_INFO "Unknown WPA supplicant request: %d\n",
-		       param->cmd);
+		netdev_info(ieee->dev, "Unknown WPA supplicant request: %d\n",
+			    param->cmd);
 		ret = -EOPNOTSUPP;
 		break;
 	}
@@ -3749,9 +3749,9 @@ void notify_wx_assoc_event(struct rtllib_device *ieee)
 		       ETH_ALEN);
 	else {
 
-		printk(KERN_INFO "%s(): Tell user space disconnected\n",
-		       __func__);
-		memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN);
+		netdev_info(ieee->dev, "%s(): Tell user space disconnected\n",
+			    __func__);
+		eth_zero_addr(wrqu.ap_addr.sa_data);
 	}
 	wireless_send_event(ieee->dev, SIOCGIWAP, &wrqu, NULL);
 }
diff --git a/drivers/staging/rtl8192e/rtllib_softmac_wx.c b/drivers/staging/rtl8192e/rtllib_softmac_wx.c
index 835f3d7..9715a79 100644
--- a/drivers/staging/rtl8192e/rtllib_softmac_wx.c
+++ b/drivers/staging/rtl8192e/rtllib_softmac_wx.c
@@ -120,7 +120,7 @@ int rtllib_wx_get_wap(struct rtllib_device *ieee,
 		ieee->state != RTLLIB_LINKED_SCANNING &&
 		ieee->wap_set == 0)
 
-		memset(wrqu->ap_addr.sa_data, 0, ETH_ALEN);
+		eth_zero_addr(wrqu->ap_addr.sa_data);
 	else
 		memcpy(wrqu->ap_addr.sa_data,
 		       ieee->current_network.bssid, ETH_ALEN);
@@ -527,8 +527,8 @@ int rtllib_wx_set_rawtx(struct rtllib_device *ieee,
 	else
 		ieee->raw_tx = 0;
 
-	printk(KERN_INFO"raw TX is %s\n",
-	      ieee->raw_tx ? "enabled" : "disabled");
+	netdev_info(ieee->dev, "raw TX is %s\n",
+		    ieee->raw_tx ? "enabled" : "disabled");
 
 	if (ieee->iw_mode == IW_MODE_MONITOR) {
 		if (prev == 0 && ieee->raw_tx) {
@@ -575,8 +575,9 @@ int rtllib_wx_set_power(struct rtllib_device *ieee,
 	if ((!ieee->sta_wake_up) ||
 	    (!ieee->enter_sleep_state) ||
 	    (!ieee->ps_is_queue_empty)) {
-		RTLLIB_DEBUG(RTLLIB_DL_ERR, "%s(): PS mode is tried to be use "
-			     "but driver missed a callback\n\n", __func__);
+		RTLLIB_DEBUG(RTLLIB_DL_ERR,
+			     "%s(): PS mode is tried to be use but driver missed a callback\n\n",
+			     __func__);
 		return -1;
 	}
 
diff --git a/drivers/staging/rtl8192e/rtllib_tx.c b/drivers/staging/rtl8192e/rtllib_tx.c
index 4f68ffe..3b15963 100644
--- a/drivers/staging/rtl8192e/rtllib_tx.c
+++ b/drivers/staging/rtl8192e/rtllib_tx.c
@@ -53,102 +53,99 @@
 
 #include "rtllib.h"
 
-/*
-
-
-802.11 Data Frame
-
-
-802.11 frame_control for data frames - 2 bytes
-     ,-----------------------------------------------------------------------------------------.
-bits | 0  |  1  |  2  |  3  |  4  |  5  |  6  |  7  |  8  |  9  |  a  |  b  |  c  |  d  |  e   |
-     |----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|------|
-val  | 0  |  0  |  0  |  1  |  x  |  0  |  0  |  0  |  1  |  0  |  x  |  x  |  x  |  x  |  x   |
-     |----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|------|
-desc | ^-ver-^  |  ^type-^  |  ^-----subtype-----^  | to  |from |more |retry| pwr |more |wep   |
-     |	  |	   | x=0 data,x=1 data+ack | DS  | DS  |frag |     | mgm |data |      |
-     '-----------------------------------------------------------------------------------------'
-						    /\
-						    |
-802.11 Data Frame				   |
-	   ,--------- 'ctrl' expands to >-----------'
-	  |
-      ,--'---,-------------------------------------------------------------.
-Bytes |  2   |  2   |    6    |    6    |    6    |  2   | 0..2312 |   4  |
-      |------|------|---------|---------|---------|------|---------|------|
-Desc. | ctrl | dura |  DA/RA  |   TA    |    SA   | Sequ |  Frame  |  fcs |
-      |      | tion | (BSSID) |	 |	 | ence |  data   |      |
-      `--------------------------------------------------|	 |------'
-Total: 28 non-data bytes				 `----.----'
-							      |
-       .- 'Frame data' expands to <---------------------------'
-       |
-       V
-      ,---------------------------------------------------.
-Bytes |  1   |  1   |    1    |    3     |  2   |  0-2304 |
-      |------|------|---------|----------|------|---------|
-Desc. | SNAP | SNAP | Control |Eth Tunnel| Type | IP      |
-      | DSAP | SSAP |	 |	  |      | Packet  |
-      | 0xAA | 0xAA |0x03 (UI)|0x00-00-F8|      |	 |
-      `-----------------------------------------|	 |
-Total: 8 non-data bytes			 `----.----'
-						     |
-       .- 'IP Packet' expands, if WEP enabled, to <--'
-       |
-       V
-      ,-----------------------.
-Bytes |  4  |   0-2296  |  4  |
-      |-----|-----------|-----|
-Desc. | IV  | Encrypted | ICV |
-      |     | IP Packet |     |
-      `-----------------------'
-Total: 8 non-data bytes
-
-
-802.3 Ethernet Data Frame
-
-      ,-----------------------------------------.
-Bytes |   6   |   6   |  2   |  Variable |   4  |
-      |-------|-------|------|-----------|------|
-Desc. | Dest. | Source| Type | IP Packet |  fcs |
-      |  MAC  |  MAC  |      |	   |      |
-      `-----------------------------------------'
-Total: 18 non-data bytes
-
-In the event that fragmentation is required, the incoming payload is split into
-N parts of size ieee->fts.  The first fragment contains the SNAP header and the
-remaining packets are just data.
-
-If encryption is enabled, each fragment payload size is reduced by enough space
-to add the prefix and postfix (IV and ICV totalling 8 bytes in the case of WEP)
-So if you have 1500 bytes of payload with ieee->fts set to 500 without
-encryption it will take 3 frames.  With WEP it will take 4 frames as the
-payload of each frame is reduced to 492 bytes.
-
-* SKB visualization
-*
-*  ,- skb->data
-* |
-* |    ETHERNET HEADER	,-<-- PAYLOAD
-* |			   |     14 bytes from skb->data
-* |  2 bytes for Type --> ,T. |     (sizeof ethhdr)
-* |		       | | |
-* |,-Dest.--. ,--Src.---. | | |
-* |  6 bytes| | 6 bytes | | | |
-* v	 | |	 | | | |
-* 0	 | v       1 | v | v	   2
-* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
-*     ^     | ^	 | ^ |
-*     |     | |	 | | |
-*     |     | |	 | `T' <---- 2 bytes for Type
-*     |     | |	 |
-*     |     | '---SNAP--' <-------- 6 bytes for SNAP
-*     |     |
-*     `-IV--' <-------------------- 4 bytes for IV (WEP)
-*
-*      SNAP HEADER
-*
-*/
+/* 802.11 Data Frame
+ *
+ *
+ * 802.11 frame_control for data frames - 2 bytes
+ *      ,-----------------------------------------------------------------------------------------.
+ * bits | 0  |  1  |  2  |  3  |  4  |  5  |  6  |  7  |  8  |  9  |  a  |  b  |  c  |  d  |  e   |
+ *      |----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|------|
+ * val  | 0  |  0  |  0  |  1  |  x  |  0  |  0  |  0  |  1  |  0  |  x  |  x  |  x  |  x  |  x   |
+ *      |----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|------|
+ * desc | ^-ver-^  |  ^type-^  |  ^-----subtype-----^  | to  |from |more |retry| pwr |more |wep   |
+ *      |          |           | x=0 data,x=1 data+ack | DS  | DS  |frag |     | mgm |data |      |
+ *      '-----------------------------------------------------------------------------------------'
+ *                                                   /\
+ *                                                   |
+ * 802.11 Data Frame                                 |
+ *          ,--------- 'ctrl' expands to >-----------'
+ *          |
+ *       ,--'---,-------------------------------------------------------------.
+ * Bytes |  2   |  2   |    6    |    6    |    6    |  2   | 0..2312 |   4  |
+ *       |------|------|---------|---------|---------|------|---------|------|
+ * Desc. | ctrl | dura |  DA/RA  |   TA    |    SA   | Sequ |  Frame  |  fcs |
+ *       |      | tion | (BSSID) |         |         | ence |  data   |      |
+ *       `--------------------------------------------------|         |------'
+ * Total: 28 non-data bytes                                 `----.----'
+ *                                                               |
+ *        .- 'Frame data' expands to <---------------------------'
+ *        |
+ *        V
+ *       ,---------------------------------------------------.
+ * Bytes |  1   |  1   |    1    |    3     |  2   |  0-2304 |
+ *       |------|------|---------|----------|------|---------|
+ * Desc. | SNAP | SNAP | Control |Eth Tunnel| Type | IP      |
+ *       | DSAP | SSAP |         |          |      | Packet  |
+ *       | 0xAA | 0xAA |0x03 (UI)|0x00-00-F8|      |         |
+ *       `-----------------------------------------|         |
+ * Total: 8 non-data bytes                         `----.----'
+ *                                                      |
+ *        .- 'IP Packet' expands, if WEP enabled, to <--'
+ *        |
+ *        V
+ *       ,-----------------------.
+ * Bytes |  4  |   0-2296  |  4  |
+ *       |-----|-----------|-----|
+ * Desc. | IV  | Encrypted | ICV |
+ *       |     | IP Packet |     |
+ *       `-----------------------'
+ * Total: 8 non-data bytes
+ *
+ *
+ * 802.3 Ethernet Data Frame
+ *
+ *       ,-----------------------------------------.
+ * Bytes |   6   |   6   |  2   |  Variable |   4  |
+ *       |-------|-------|------|-----------|------|
+ * Desc. | Dest. | Source| Type | IP Packet |  fcs |
+ *       |  MAC  |  MAC  |      |	   |      |
+ *       `-----------------------------------------'
+ * Total: 18 non-data bytes
+ *
+ * In the event that fragmentation is required, the incoming payload is split into
+ * N parts of size ieee->fts.  The first fragment contains the SNAP header and the
+ * remaining packets are just data.
+ *
+ * If encryption is enabled, each fragment payload size is reduced by enough space
+ * to add the prefix and postfix (IV and ICV totalling 8 bytes in the case of WEP)
+ * So if you have 1500 bytes of payload with ieee->fts set to 500 without
+ * encryption it will take 3 frames.  With WEP it will take 4 frames as the
+ * payload of each frame is reduced to 492 bytes.
+ *
+ * SKB visualization
+ *
+ * ,- skb->data
+ * |
+ * |    ETHERNET HEADER        ,-<-- PAYLOAD
+ * |                           |     14 bytes from skb->data
+ * |  2 bytes for Type --> ,T. |     (sizeof ethhdr)
+ * |                       | | |
+ * |,-Dest.--. ,--Src.---. | | |
+ * |  6 bytes| | 6 bytes | | | |
+ * v         | |         | | | |
+ * 0         | v       1 | v | v           2
+ * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
+ *     ^     | ^         | ^ |
+ *     |     | |         | | |
+ *     |     | |         | `T' <---- 2 bytes for Type
+ *     |     | |         |
+ *     |     | '---SNAP--' <-------- 6 bytes for SNAP
+ *     |     |
+ *     `-IV--' <-------------------- 4 bytes for IV (WEP)
+ *
+ *      SNAP HEADER
+ *
+ */
 
 static u8 P802_1H_OUI[P80211_OUI_LEN] = { 0x00, 0x00, 0xf8 };
 static u8 RFC1042_OUI[P80211_OUI_LEN] = { 0x00, 0x00, 0x00 };
@@ -185,14 +182,17 @@ int rtllib_encrypt_fragment(struct rtllib_device *ieee, struct sk_buff *frag,
 	crypt = ieee->crypt_info.crypt[ieee->crypt_info.tx_keyidx];
 
 	if (!(crypt && crypt->ops)) {
-		printk(KERN_INFO "=========>%s(), crypt is null\n", __func__);
+		netdev_info(ieee->dev, "=========>%s(), crypt is null\n",
+			    __func__);
 		return -1;
 	}
 	/* To encrypt, frame format is:
-	 * IV (4 bytes), clear payload (including SNAP), ICV (4 bytes) */
+	 * IV (4 bytes), clear payload (including SNAP), ICV (4 bytes)
+	 */
 
 	/* Host-based IEEE 802.11 fragmentation for TX is not yet supported, so
-	 * call both MSDU and MPDU encryption functions from here. */
+	 * call both MSDU and MPDU encryption functions from here.
+	 */
 	atomic_inc(&crypt->refcnt);
 	res = 0;
 	if (crypt->ops->encrypt_msdu)
@@ -202,8 +202,8 @@ int rtllib_encrypt_fragment(struct rtllib_device *ieee, struct sk_buff *frag,
 
 	atomic_dec(&crypt->refcnt);
 	if (res < 0) {
-		printk(KERN_INFO "%s: Encryption failed: len=%d.\n",
-		       ieee->dev->name, frag->len);
+		netdev_info(ieee->dev, "%s: Encryption failed: len=%d.\n",
+			    ieee->dev->name, frag->len);
 		ieee->ieee_stats.tx_discards++;
 		return -1;
 	}
@@ -311,7 +311,7 @@ static void rtllib_tx_query_agg_cap(struct rtllib_device *ieee,
 	if (pHTInfo->bCurrentAMPDUEnable) {
 		if (!GetTs(ieee, (struct ts_common_info **)(&pTxTs), hdr->addr1,
 		    skb->priority, TX_DIR, true)) {
-			printk(KERN_INFO "%s: can't get TS\n", __func__);
+			netdev_info(ieee->dev, "%s: can't get TS\n", __func__);
 			return;
 		}
 		if (pTxTs->TxAdmittedBARecord.bValid == false) {
@@ -412,6 +412,8 @@ static void rtllib_query_protectionmode(struct rtllib_device *ieee,
 					struct cb_desc *tcb_desc,
 					struct sk_buff *skb)
 {
+	struct rt_hi_throughput *pHTInfo;
+
 	tcb_desc->bRTSSTBC			= false;
 	tcb_desc->bRTSUseShortGI		= false;
 	tcb_desc->bCTSEnable			= false;
@@ -434,50 +436,50 @@ static void rtllib_query_protectionmode(struct rtllib_device *ieee,
 			tcb_desc->rts_rate = MGN_24M;
 		}
 		return;
-	} else {
-		struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
+	}
 
-		while (true) {
-			if (pHTInfo->IOTAction & HT_IOT_ACT_FORCED_CTS2SELF) {
-				tcb_desc->bCTSEnable	= true;
-				tcb_desc->rts_rate  =	MGN_24M;
-				tcb_desc->bRTSEnable = true;
-				break;
-			} else if (pHTInfo->IOTAction & (HT_IOT_ACT_FORCED_RTS |
-				   HT_IOT_ACT_PURE_N_MODE)) {
-				tcb_desc->bRTSEnable = true;
-				tcb_desc->rts_rate  =	MGN_24M;
-				break;
-			}
-			if (ieee->current_network.buseprotection) {
-				tcb_desc->bRTSEnable = true;
-				tcb_desc->bCTSEnable = true;
-				tcb_desc->rts_rate = MGN_24M;
-				break;
-			}
-			if (pHTInfo->bCurrentHTSupport  && pHTInfo->bEnableHT) {
-				u8 HTOpMode = pHTInfo->CurrentOpMode;
-
-				if ((pHTInfo->bCurBW40MHz && (HTOpMode == 2 ||
-				     HTOpMode == 3)) ||
-				     (!pHTInfo->bCurBW40MHz && HTOpMode == 3)) {
-					tcb_desc->rts_rate = MGN_24M;
-					tcb_desc->bRTSEnable = true;
-					break;
-				}
-			}
-			if (skb->len > ieee->rts) {
+	pHTInfo = ieee->pHTInfo;
+
+	while (true) {
+		if (pHTInfo->IOTAction & HT_IOT_ACT_FORCED_CTS2SELF) {
+			tcb_desc->bCTSEnable	= true;
+			tcb_desc->rts_rate  =	MGN_24M;
+			tcb_desc->bRTSEnable = true;
+			break;
+		} else if (pHTInfo->IOTAction & (HT_IOT_ACT_FORCED_RTS |
+			   HT_IOT_ACT_PURE_N_MODE)) {
+			tcb_desc->bRTSEnable = true;
+			tcb_desc->rts_rate  =	MGN_24M;
+			break;
+		}
+		if (ieee->current_network.buseprotection) {
+			tcb_desc->bRTSEnable = true;
+			tcb_desc->bCTSEnable = true;
+			tcb_desc->rts_rate = MGN_24M;
+			break;
+		}
+		if (pHTInfo->bCurrentHTSupport  && pHTInfo->bEnableHT) {
+			u8 HTOpMode = pHTInfo->CurrentOpMode;
+
+			if ((pHTInfo->bCurBW40MHz && (HTOpMode == 2 ||
+			     HTOpMode == 3)) ||
+			     (!pHTInfo->bCurBW40MHz && HTOpMode == 3)) {
 				tcb_desc->rts_rate = MGN_24M;
 				tcb_desc->bRTSEnable = true;
 				break;
 			}
-			if (tcb_desc->bAMPDUEnable) {
-				tcb_desc->rts_rate = MGN_24M;
-				tcb_desc->bRTSEnable = false;
-				break;
-			}
-			goto NO_PROTECTION;
 		}
+		if (skb->len > ieee->rts) {
+			tcb_desc->rts_rate = MGN_24M;
+			tcb_desc->bRTSEnable = true;
+			break;
+		}
+		if (tcb_desc->bAMPDUEnable) {
+			tcb_desc->rts_rate = MGN_24M;
+			tcb_desc->bRTSEnable = false;
+			break;
+		}
+		goto NO_PROTECTION;
 	}
 	if (ieee->current_network.capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
 		tcb_desc->bUseShortPreamble = true;
@@ -549,6 +551,17 @@ static int wme_downgrade_ac(struct sk_buff *skb)
 	}
 }
 
+static u8 rtllib_current_rate(struct rtllib_device *ieee)
+{
+	if (ieee->mode & IEEE_MODE_MASK)
+		return ieee->rate;
+
+	if (ieee->HTCurrentOperaRate)
+		return ieee->HTCurrentOperaRate;
+	else
+		return ieee->rate & 0x7F;
+}
+
 int rtllib_xmit_inter(struct sk_buff *skb, struct net_device *dev)
 {
 	struct rtllib_device *ieee = (struct rtllib_device *)
@@ -577,21 +590,21 @@ int rtllib_xmit_inter(struct sk_buff *skb, struct net_device *dev)
 	spin_lock_irqsave(&ieee->lock, flags);
 
 	/* If there is no driver handler to take the TXB, don't bother
-	 * creating it... */
+	 * creating it...
+	 */
 	if ((!ieee->hard_start_xmit && !(ieee->softmac_features &
 	   IEEE_SOFTMAC_TX_QUEUE)) ||
 	   ((!ieee->softmac_data_hard_start_xmit &&
 	   (ieee->softmac_features & IEEE_SOFTMAC_TX_QUEUE)))) {
-		printk(KERN_WARNING "%s: No xmit handler.\n",
-		       ieee->dev->name);
+		netdev_warn(ieee->dev, "No xmit handler.\n");
 		goto success;
 	}
 
 
 	if (likely(ieee->raw_tx == 0)) {
 		if (unlikely(skb->len < SNAP_SIZE + sizeof(u16))) {
-			printk(KERN_WARNING "%s: skb too small (%d).\n",
-			ieee->dev->name, skb->len);
+			netdev_warn(ieee->dev, "skb too small (%d).\n",
+				    skb->len);
 			goto success;
 		}
 		/* Save source and destination addresses */
@@ -604,9 +617,8 @@ int rtllib_xmit_inter(struct sk_buff *skb, struct net_device *dev)
 		if (ieee->iw_mode == IW_MODE_MONITOR) {
 			txb = rtllib_alloc_txb(1, skb->len, GFP_ATOMIC);
 			if (unlikely(!txb)) {
-				printk(KERN_WARNING "%s: Could not allocate "
-				       "TXB\n",
-				ieee->dev->name);
+				netdev_warn(ieee->dev,
+					    "Could not allocate TXB\n");
 				goto failed;
 			}
 
@@ -636,8 +648,8 @@ int rtllib_xmit_inter(struct sk_buff *skb, struct net_device *dev)
 					}
 				}
 			} else if (ETH_P_ARP == ether_type) {
-				printk(KERN_INFO "=================>DHCP "
-				       "Protocol start tx ARP pkt!!\n");
+				netdev_info(ieee->dev,
+					    "=================>DHCP Protocol start tx ARP pkt!!\n");
 				bdhcp = true;
 				ieee->LPSDelayCnt =
 					 ieee->current_network.tim.tim_count;
@@ -680,7 +692,8 @@ int rtllib_xmit_inter(struct sk_buff *skb, struct net_device *dev)
 		if (ieee->iw_mode == IW_MODE_INFRA) {
 			fc |= RTLLIB_FCTL_TODS;
 			/* To DS: Addr1 = BSSID, Addr2 = SA,
-			Addr3 = DA */
+			 * Addr3 = DA
+			 */
 			memcpy(&header.addr1, ieee->current_network.bssid,
 			       ETH_ALEN);
 			memcpy(&header.addr2, &src, ETH_ALEN);
@@ -691,7 +704,8 @@ int rtllib_xmit_inter(struct sk_buff *skb, struct net_device *dev)
 				memcpy(&header.addr3, &dest, ETH_ALEN);
 		} else if (ieee->iw_mode == IW_MODE_ADHOC) {
 			/* not From/To DS: Addr1 = DA, Addr2 = SA,
-			Addr3 = BSSID */
+			 * Addr3 = BSSID
+			 */
 			memcpy(&header.addr1, dest, ETH_ALEN);
 			memcpy(&header.addr2, src, ETH_ALEN);
 			memcpy(&header.addr3, ieee->current_network.bssid,
@@ -703,7 +717,8 @@ int rtllib_xmit_inter(struct sk_buff *skb, struct net_device *dev)
 		header.frame_ctl = cpu_to_le16(fc);
 
 		/* Determine fragmentation size based on destination (multicast
-		* and broadcast are not fragmented) */
+		 * and broadcast are not fragmented)
+		 */
 		if (bIsMulticast) {
 			frag_size = MAX_FRAG_THRESHOLD;
 			qos_ctl |= QOS_CTL_NOTCONTAIN_ACK;
@@ -717,10 +732,11 @@ int rtllib_xmit_inter(struct sk_buff *skb, struct net_device *dev)
 
 		/* in case we are a client verify acm is not set for this ac */
 		while (unlikely(ieee->wmm_acm & (0x01 << skb->priority))) {
-			printk(KERN_INFO "skb->priority = %x\n", skb->priority);
+			netdev_info(ieee->dev, "skb->priority = %x\n",
+				    skb->priority);
 			if (wme_downgrade_ac(skb))
 				break;
-			printk(KERN_INFO "converted skb->priority = %x\n",
+			netdev_info(ieee->dev, "converted skb->priority = %x\n",
 			       skb->priority);
 		 }
 			qos_ctl |= skb->priority;
@@ -731,14 +747,16 @@ int rtllib_xmit_inter(struct sk_buff *skb, struct net_device *dev)
 		/* Determine amount of payload per fragment.  Regardless of if
 		 * this stack is providing the full 802.11 header, one will
 		 * eventually be affixed to this fragment -- so we must account
-		 * for it when determining the amount of payload space. */
+		 * for it when determining the amount of payload space.
+		 */
 		bytes_per_frag = frag_size - hdr_len;
 		if (ieee->config &
 		   (CFG_RTLLIB_COMPUTE_FCS | CFG_RTLLIB_RESERVE_FCS))
 			bytes_per_frag -= RTLLIB_FCS_LEN;
 
 		/* Each fragment may need to have room for encrypting
-		 * pre/postfix */
+		 * pre/postfix
+		 */
 		if (encrypt) {
 			bytes_per_frag -= crypt->ops->extra_mpdu_prefix_len +
 				crypt->ops->extra_mpdu_postfix_len +
@@ -746,7 +764,8 @@ int rtllib_xmit_inter(struct sk_buff *skb, struct net_device *dev)
 				crypt->ops->extra_msdu_postfix_len;
 		}
 		/* Number of fragments is the total bytes_per_frag /
-		* payload_per_fragment */
+		 * payload_per_fragment
+		 */
 		nr_frags = bytes / bytes_per_frag;
 		bytes_last_frag = bytes % bytes_per_frag;
 		if (bytes_last_frag)
@@ -756,12 +775,12 @@ int rtllib_xmit_inter(struct sk_buff *skb, struct net_device *dev)
 
 		/* When we allocate the TXB we allocate enough space for the
 		 * reserve and full fragment bytes (bytes_per_frag doesn't
-		 * include prefix, postfix, header, FCS, etc.) */
+		 * include prefix, postfix, header, FCS, etc.)
+		 */
 		txb = rtllib_alloc_txb(nr_frags, frag_size +
 				       ieee->tx_headroom, GFP_ATOMIC);
 		if (unlikely(!txb)) {
-			printk(KERN_WARNING "%s: Could not allocate TXB\n",
-			ieee->dev->name);
+			netdev_warn(ieee->dev, "Could not allocate TXB\n");
 			goto failed;
 		}
 		txb->encrypted = encrypt;
@@ -801,7 +820,8 @@ int rtllib_xmit_inter(struct sk_buff *skb, struct net_device *dev)
 			memcpy(frag_hdr, &header, hdr_len);
 
 			/* If this is not the last fragment, then add the
-			 * MOREFRAGS bit to the frame control */
+			 * MOREFRAGS bit to the frame control
+			 */
 			if (i != nr_frags - 1) {
 				frag_hdr->frame_ctl = cpu_to_le16(
 					fc | RTLLIB_FCTL_MOREFRAGS);
@@ -836,7 +856,8 @@ int rtllib_xmit_inter(struct sk_buff *skb, struct net_device *dev)
 
 			/* Encryption routine will move the header forward in
 			 * order to insert the IV between the header and the
-			 * payload */
+			 * payload
+			 */
 			if (encrypt)
 				rtllib_encrypt_fragment(ieee, skb_frag,
 							hdr_len);
@@ -858,15 +879,14 @@ int rtllib_xmit_inter(struct sk_buff *skb, struct net_device *dev)
 		}
 	} else {
 		if (unlikely(skb->len < sizeof(struct rtllib_hdr_3addr))) {
-			printk(KERN_WARNING "%s: skb too small (%d).\n",
-			ieee->dev->name, skb->len);
+			netdev_warn(ieee->dev, "skb too small (%d).\n",
+				    skb->len);
 			goto success;
 		}
 
 		txb = rtllib_alloc_txb(1, skb->len, GFP_ATOMIC);
 		if (!txb) {
-			printk(KERN_WARNING "%s: Could not allocate TXB\n",
-			ieee->dev->name);
+			netdev_warn(ieee->dev, "Could not allocate TXB\n");
 			goto failed;
 		}
 
@@ -906,8 +926,7 @@ int rtllib_xmit_inter(struct sk_buff *skb, struct net_device *dev)
 			if (tcb_desc->bMulticast ||  tcb_desc->bBroadcast)
 				tcb_desc->data_rate = ieee->basic_rate;
 			else
-				tcb_desc->data_rate = CURRENT_RATE(ieee->mode,
-					ieee->rate, ieee->HTCurrentOperaRate);
+				tcb_desc->data_rate = rtllib_current_rate(ieee);
 
 			if (bdhcp) {
 				if (ieee->pHTInfo->IOTAction &
diff --git a/drivers/staging/rtl8192e/rtllib_wx.c b/drivers/staging/rtl8192e/rtllib_wx.c
index 9e0f975..6234aae 100644
--- a/drivers/staging/rtl8192e/rtllib_wx.c
+++ b/drivers/staging/rtl8192e/rtllib_wx.c
@@ -32,7 +32,7 @@
 #include <linux/wireless.h>
 #include <linux/kmod.h>
 #include <linux/module.h>
-
+#include <linux/etherdevice.h>
 #include "rtllib.h"
 struct modes_unit {
 	char *mode_string;
@@ -65,7 +65,7 @@ static inline char *rtl819x_translate_scan(struct rtllib_device *ieee,
 	/* First entry *MUST* be the AP MAC address */
 	iwe.cmd = SIOCGIWAP;
 	iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
-	memcpy(iwe.u.ap_addr.sa_data, network->bssid, ETH_ALEN);
+	ether_addr_copy(iwe.u.ap_addr.sa_data, network->bssid);
 	start = iwe_stream_add_event_rsl(info, start, stop,
 					 &iwe, IW_EV_ADDR_LEN);
 	/* Remaining entries will be displayed in the order we provide them */
@@ -74,7 +74,7 @@ static inline char *rtl819x_translate_scan(struct rtllib_device *ieee,
 	iwe.cmd = SIOCGIWESSID;
 	iwe.u.data.flags = 1;
 	if (network->ssid_len > 0) {
-		iwe.u.data.length = min(network->ssid_len, (u8)32);
+		iwe.u.data.length = min_t(u8, network->ssid_len, 32);
 		start = iwe_stream_add_point_rsl(info, start, stop, &iwe,
 						 network->ssid);
 	} else if (network->hidden_ssid_len == 0) {
@@ -82,7 +82,7 @@ static inline char *rtl819x_translate_scan(struct rtllib_device *ieee,
 		start = iwe_stream_add_point_rsl(info, start, stop,
 						 &iwe, "<hidden>");
 	} else {
-		iwe.u.data.length = min(network->hidden_ssid_len, (u8)32);
+		iwe.u.data.length = min_t(u8, network->hidden_ssid_len, 32);
 		start = iwe_stream_add_point_rsl(info, start, stop, &iwe,
 						 network->hidden_ssid);
 	}
@@ -113,8 +113,6 @@ static inline char *rtl819x_translate_scan(struct rtllib_device *ieee,
 
 	/* Add frequency/channel */
 	iwe.cmd = SIOCGIWFREQ;
-/*	iwe.u.freq.m = rtllib_frequency(network->channel, network->mode);
-	iwe.u.freq.e = 3; */
 	iwe.u.freq.m = network->channel;
 	iwe.u.freq.e = 0;
 	iwe.u.freq.i = 0;
@@ -241,7 +239,8 @@ static inline char *rtl819x_translate_scan(struct rtllib_device *ieee,
 	}
 
 	/* Add EXTRA: Age to display seconds since last beacon/probe response
-	 * for given network. */
+	 * for given network.
+	 */
 	iwe.cmd = IWEVCUSTOM;
 	p = custom;
 	p += snprintf(p, MAX_CUSTOM_LEN - (p - custom),
@@ -282,8 +281,7 @@ int rtllib_wx_get_scan(struct rtllib_device *ieee,
 			ev = rtl819x_translate_scan(ieee, ev, stop, network,
 						    info);
 		else
-			RTLLIB_DEBUG_SCAN("Not showing network '%s ("
-				" %pM)' due to age (%lums).\n",
+			RTLLIB_DEBUG_SCAN("Not showing network '%s ( %pM)' due to age (%lums).\n",
 				escape_essid(network->ssid,
 					     network->ssid_len),
 				network->bssid,
@@ -338,13 +336,14 @@ int rtllib_wx_set_encode(struct rtllib_device *ieee,
 			RTLLIB_DEBUG_WX("Disabling encryption.\n");
 
 		/* Check all the keys to see if any are still configured,
-		 * and if no key index was provided, de-init them all */
+		 * and if no key index was provided, de-init them all
+		 */
 		for (i = 0; i < NUM_WEP_KEYS; i++) {
 			if (ieee->crypt_info.crypt[i] != NULL) {
 				if (key_provided)
 					break;
 				lib80211_crypt_delayed_deinit(&ieee->crypt_info,
-							    &ieee->crypt_info.crypt[i]);
+						    &ieee->crypt_info.crypt[i]);
 			}
 		}
 
@@ -365,7 +364,8 @@ int rtllib_wx_set_encode(struct rtllib_device *ieee,
 	if (*crypt != NULL && (*crypt)->ops != NULL &&
 	    strcmp((*crypt)->ops->name, "R-WEP") != 0) {
 		/* changing to use WEP; deinit previously used algorithm
-		 * on this key */
+		 * on this key
+		 */
 		lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt);
 	}
 
@@ -390,9 +390,9 @@ int rtllib_wx_set_encode(struct rtllib_device *ieee,
 			kfree(new_crypt);
 			new_crypt = NULL;
 
-			printk(KERN_WARNING "%s: could not initialize WEP: "
-			       "load module rtllib_crypt_wep\n",
-			       dev->name);
+			netdev_warn(dev,
+				    "%s: could not initialize WEP: load module rtllib_crypt_wep\n",
+				    dev->name);
 			return -EOPNOTSUPP;
 		}
 		*crypt = new_crypt;
@@ -413,7 +413,8 @@ int rtllib_wx_set_encode(struct rtllib_device *ieee,
 				       (*crypt)->priv);
 		sec.flags |= (1 << key);
 		/* This ensures a key will be activated if no key is
-		 * explicitly set */
+		 * explicitly set
+		 */
 		if (key == sec.active_key)
 			sec.flags |= SEC_ACTIVE_KEY;
 		ieee->crypt_info.tx_keyidx = key;
@@ -423,11 +424,9 @@ int rtllib_wx_set_encode(struct rtllib_device *ieee,
 					     NULL, (*crypt)->priv);
 		if (len == 0) {
 			/* Set a default key of all 0 */
-			printk(KERN_INFO "Setting key %d to all zero.\n",
+			netdev_info(ieee->dev, "Setting key %d to all zero.\n",
 					   key);
 
-			RTLLIB_DEBUG_WX("Setting key %d to all zero.\n",
-					   key);
 			memset(sec.keys[key], 0, 13);
 			(*crypt)->ops->set_key(sec.keys[key], 13, NULL,
 					       (*crypt)->priv);
@@ -437,8 +436,8 @@ int rtllib_wx_set_encode(struct rtllib_device *ieee,
 
 		/* No key data - just set the default TX key index */
 		if (key_provided) {
-			RTLLIB_DEBUG_WX(
-				"Setting key %d to default Tx key.\n", key);
+			RTLLIB_DEBUG_WX("Setting key %d to default Tx key.\n",
+					key);
 			ieee->crypt_info.tx_keyidx = key;
 			sec.active_key = key;
 			sec.flags |= SEC_ACTIVE_KEY;
@@ -454,7 +453,8 @@ int rtllib_wx_set_encode(struct rtllib_device *ieee,
 			   "OPEN" : "SHARED KEY");
 
 	/* For now we just support WEP, so only set that security level...
-	 * TODO: When WPA is added this is one place that needs to change */
+	 * TODO: When WPA is added this is one place that needs to change
+	 */
 	sec.flags |= SEC_LEVEL;
 	sec.level = SEC_LEVEL_1; /* 40 and 104 bit WEP */
 
@@ -465,11 +465,12 @@ int rtllib_wx_set_encode(struct rtllib_device *ieee,
 	 * generate new IEEE 802.11 authentication which may end up in looping
 	 * with IEEE 802.1X.  If your hardware requires a reset after WEP
 	 * configuration (for example... Prism2), implement the reset_port in
-	 * the callbacks structures used to initialize the 802.11 stack. */
+	 * the callbacks structures used to initialize the 802.11 stack.
+	 */
 	if (ieee->reset_on_keychange &&
 	    ieee->iw_mode != IW_MODE_INFRA &&
 	    ieee->reset_port && ieee->reset_port(dev)) {
-		printk(KERN_DEBUG "%s: reset_port failed\n", dev->name);
+		netdev_dbg(dev, "%s: reset_port failed\n", dev->name);
 		return -EINVAL;
 	}
 	return 0;
@@ -596,7 +597,7 @@ int rtllib_wx_set_encode_ext(struct rtllib_device *ieee,
 		ret = -EINVAL;
 		goto done;
 	}
-	printk(KERN_INFO "alg name:%s\n", alg);
+	netdev_info(dev, "alg name:%s\n", alg);
 
 	ops = lib80211_get_crypto_ops(alg);
 	if (ops == NULL) {
@@ -608,9 +609,7 @@ int rtllib_wx_set_encode_ext(struct rtllib_device *ieee,
 		ops = lib80211_get_crypto_ops(alg);
 	}
 	if (ops == NULL) {
-		RTLLIB_DEBUG_WX("%s: unknown crypto alg %d\n",
-				   dev->name, ext->alg);
-		printk(KERN_INFO "========>unknown crypto alg %d\n", ext->alg);
+		netdev_info(dev, "========>unknown crypto alg %d\n", ext->alg);
 		ret = -EINVAL;
 		goto done;
 	}
@@ -641,8 +640,7 @@ int rtllib_wx_set_encode_ext(struct rtllib_device *ieee,
 	if (ext->key_len > 0 && (*crypt)->ops->set_key &&
 	    (*crypt)->ops->set_key(ext->key, ext->key_len, ext->rx_seq,
 				   (*crypt)->priv) < 0) {
-		RTLLIB_DEBUG_WX("%s: key setting failed\n", dev->name);
-		printk(KERN_INFO "key setting failed\n");
+		netdev_info(dev, "key setting failed\n");
 		ret = -EINVAL;
 		goto done;
 	}
@@ -759,9 +757,9 @@ int rtllib_wx_set_mlme(struct rtllib_device *ieee,
 
 	case IW_MLME_DISASSOC:
 		if (deauth)
-			printk(KERN_INFO "disauth packet !\n");
+			netdev_info(ieee->dev, "disauth packet !\n");
 		else
-			printk(KERN_INFO "dis associate packet!\n");
+			netdev_info(ieee->dev, "dis associate packet!\n");
 
 		ieee->cannot_notify = true;
 
@@ -797,8 +795,7 @@ int rtllib_wx_set_auth(struct rtllib_device *ieee,
 	case IW_AUTH_CIPHER_PAIRWISE:
 	case IW_AUTH_CIPHER_GROUP:
 	case IW_AUTH_KEY_MGMT:
-		/*
-		 * Host AP driver does not use these parameters and allows
+		/* Host AP driver does not use these parameters and allows
 		 * wpa_supplicant to control them internally.
 		 */
 		break;
diff --git a/drivers/staging/rtl8192u/ieee80211/dot11d.c b/drivers/staging/rtl8192u/ieee80211/dot11d.c
index 90ace79..82d6038 100644
--- a/drivers/staging/rtl8192u/ieee80211/dot11d.c
+++ b/drivers/staging/rtl8192u/ieee80211/dot11d.c
@@ -6,7 +6,7 @@ void Dot11d_Init(struct ieee80211_device *ieee)
 {
 	PRT_DOT11D_INFO pDot11dInfo = GET_DOT11D_INFO(ieee);
 
-	pDot11dInfo->bEnabled = 0;
+	pDot11dInfo->bEnabled = false;
 
 	pDot11dInfo->State = DOT11D_STATE_NONE;
 	pDot11dInfo->CountryIeLen = 0;
diff --git a/drivers/staging/rtl8192u/ieee80211/dot11d.h b/drivers/staging/rtl8192u/ieee80211/dot11d.h
index bd75e29..8ae673b 100644
--- a/drivers/staging/rtl8192u/ieee80211/dot11d.h
+++ b/drivers/staging/rtl8192u/ieee80211/dot11d.h
@@ -53,7 +53,7 @@ typedef struct _RT_DOT11D_INFO {
 
 #define CIE_WATCHDOG_TH 1
 #define GET_CIE_WATCHDOG(__pIeeeDev) (GET_DOT11D_INFO(__pIeeeDev)->CountryIeWatchdog)
-#define RESET_CIE_WATCHDOG(__pIeeeDev) GET_CIE_WATCHDOG(__pIeeeDev) = 0
+#define RESET_CIE_WATCHDOG(__pIeeeDev) (GET_CIE_WATCHDOG(__pIeeeDev) = 0)
 #define UPDATE_CIE_WATCHDOG(__pIeeeDev) (++GET_CIE_WATCHDOG(__pIeeeDev))
 
 #define IS_DOT11D_STATE_DONE(__pIeeeDev) (GET_DOT11D_INFO(__pIeeeDev)->State == DOT11D_STATE_DONE)
diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211.h b/drivers/staging/rtl8192u/ieee80211/ieee80211.h
index b44aa17..0f53c6a 100644
--- a/drivers/staging/rtl8192u/ieee80211/ieee80211.h
+++ b/drivers/staging/rtl8192u/ieee80211/ieee80211.h
@@ -606,33 +606,6 @@ do { if (ieee80211_debug_level & (level)) \
 #define IEEE80211_DEBUG_RX(f, a...)  IEEE80211_DEBUG(IEEE80211_DL_RX, f, ## a)
 #define IEEE80211_DEBUG_QOS(f, a...)  IEEE80211_DEBUG(IEEE80211_DL_QOS, f, ## a)
 
-#ifdef CONFIG_IEEE80211_DEBUG
-/* Added by Annie, 2005-11-22. */
-#define MAX_STR_LEN     64
-/* I want to see ASCII 33 to 126 only. Otherwise, I print '?'. Annie, 2005-11-22.*/
-#define PRINTABLE(_ch)  (_ch>'!' && _ch<'~')
-#define IEEE80211_PRINT_STR(_Comp, _TitleString, _Ptr, _Len)					\
-			if((_Comp) & level)							\
-			{                                                                       \
-				int             __i;                                            \
-				u8  buffer[MAX_STR_LEN];					\
-				int length = (_Len<MAX_STR_LEN)? _Len : (MAX_STR_LEN-1) ;	\
-				memset(buffer, 0, MAX_STR_LEN);					\
-				memcpy(buffer, (u8 *)_Ptr, length );				\
-				for( __i=0; __i<MAX_STR_LEN; __i++ )                            \
-				{                                                               \
-				     if( !PRINTABLE(buffer[__i]) )   buffer[__i] = '?';		\
-				}                                                               \
-				buffer[length] = '\0';                                          \
-				printk("Rtl819x: ");						\
-				printk(_TitleString);                                         \
-				printk(": %d, <%s>\n", _Len, buffer);                         \
-			}
-#else
-#define IEEE80211_PRINT_STR(_Comp, _TitleString, _Ptr, _Len)  do {} while (0)
-#endif
-
-#include <linux/netdevice.h>
 #include <linux/if_arp.h> /* ARPHRD_ETHER */
 
 #ifndef WIRELESS_SPY
@@ -661,7 +634,7 @@ struct ieee80211_snap_hdr {
 	u8    ctrl;   /* always 0x03 */
 	u8    oui[P80211_OUI_LEN];    /* organizational universal id */
 
-} __attribute__ ((packed));
+} __packed;
 
 #define SNAP_SIZE sizeof(struct ieee80211_snap_hdr)
 
@@ -996,7 +969,7 @@ struct ieee80211_security {
 	u8 keys[WEP_KEYS][SCM_KEY_LEN];
 	u8 level;
 	u16 flags;
-} __attribute__ ((packed));
+} __packed;
 
 
 /*
@@ -1051,14 +1024,14 @@ struct ieee80211_hdr {
 	__le16 frame_ctl;
 	__le16 duration_id;
 	u8 payload[0];
-} __attribute__ ((packed));
+} __packed;
 
 struct ieee80211_hdr_1addr {
 	__le16 frame_ctl;
 	__le16 duration_id;
 	u8 addr1[ETH_ALEN];
 	u8 payload[0];
-} __attribute__ ((packed));
+} __packed;
 
 struct ieee80211_hdr_2addr {
 	__le16 frame_ctl;
@@ -1066,7 +1039,7 @@ struct ieee80211_hdr_2addr {
 	u8 addr1[ETH_ALEN];
 	u8 addr2[ETH_ALEN];
 	u8 payload[0];
-} __attribute__ ((packed));
+} __packed;
 
 struct ieee80211_hdr_3addr {
 	__le16 frame_ctl;
@@ -1076,7 +1049,7 @@ struct ieee80211_hdr_3addr {
 	u8 addr3[ETH_ALEN];
 	__le16 seq_ctl;
 	u8 payload[0];
-} __attribute__ ((packed));
+} __packed;
 
 struct ieee80211_hdr_4addr {
 	__le16 frame_ctl;
@@ -1087,7 +1060,7 @@ struct ieee80211_hdr_4addr {
 	__le16 seq_ctl;
 	u8 addr4[ETH_ALEN];
 	u8 payload[0];
-} __attribute__ ((packed));
+} __packed;
 
 struct ieee80211_hdr_3addrqos {
 	__le16 frame_ctl;
@@ -1098,7 +1071,7 @@ struct ieee80211_hdr_3addrqos {
 	__le16 seq_ctl;
 	u8 payload[0];
 	__le16 qos_ctl;
-} __attribute__ ((packed));
+} __packed;
 
 struct ieee80211_hdr_4addrqos {
 	__le16 frame_ctl;
@@ -1110,13 +1083,13 @@ struct ieee80211_hdr_4addrqos {
 	u8 addr4[ETH_ALEN];
 	u8 payload[0];
 	__le16 qos_ctl;
-} __attribute__ ((packed));
+} __packed;
 
 struct ieee80211_info_element {
 	u8 id;
 	u8 len;
 	u8 data[0];
-} __attribute__ ((packed));
+} __packed;
 
 struct ieee80211_authentication {
 	struct ieee80211_hdr_3addr header;
@@ -1125,18 +1098,18 @@ struct ieee80211_authentication {
 	__le16 status;
 	/*challenge*/
 	struct ieee80211_info_element info_element[0];
-} __attribute__ ((packed));
+} __packed;
 
 struct ieee80211_disassoc {
 	struct ieee80211_hdr_3addr header;
 	__le16 reason;
-} __attribute__ ((packed));
+} __packed;
 
 struct ieee80211_probe_request {
 	struct ieee80211_hdr_3addr header;
 	/* SSID, supported rates */
 	struct ieee80211_info_element info_element[0];
-} __attribute__ ((packed));
+} __packed;
 
 struct ieee80211_probe_response {
 	struct ieee80211_hdr_3addr header;
@@ -1146,7 +1119,7 @@ struct ieee80211_probe_response {
 	/* SSID, supported rates, FH params, DS params,
 	 * CF params, IBSS params, TIM (if beacon), RSN */
 	struct ieee80211_info_element info_element[0];
-} __attribute__ ((packed));
+} __packed;
 
 /* Alias beacon for probe_response */
 #define ieee80211_beacon ieee80211_probe_response
@@ -1157,7 +1130,7 @@ struct ieee80211_assoc_request_frame {
 	__le16 listen_interval;
 	/* SSID, supported rates, RSN */
 	struct ieee80211_info_element info_element[0];
-} __attribute__ ((packed));
+} __packed;
 
 struct ieee80211_reassoc_request_frame {
 	struct ieee80211_hdr_3addr header;
@@ -1166,7 +1139,7 @@ struct ieee80211_reassoc_request_frame {
 	u8 current_ap[ETH_ALEN];
 	/* SSID, supported rates, RSN */
 	struct ieee80211_info_element info_element[0];
-} __attribute__ ((packed));
+} __packed;
 
 struct ieee80211_assoc_response_frame {
 	struct ieee80211_hdr_3addr header;
@@ -1174,7 +1147,7 @@ struct ieee80211_assoc_response_frame {
 	__le16 status;
 	__le16 aid;
 	struct ieee80211_info_element info_element[0]; /* supported rates */
-} __attribute__ ((packed));
+} __packed;
 
 struct ieee80211_txb {
 	u8 nr_frags;
@@ -1191,7 +1164,7 @@ struct ieee80211_txb {
 struct ieee80211_drv_agg_txb {
 	u8 nr_drv_agg_frames;
 	struct sk_buff *tx_agg_frames[MAX_TX_AGG_COUNT];
-}__attribute__((packed));
+} __packed;
 
 #define MAX_SUBFRAME_COUNT		  64
 struct ieee80211_rxb {
@@ -1199,7 +1172,7 @@ struct ieee80211_rxb {
 	struct sk_buff *subframes[MAX_SUBFRAME_COUNT];
 	u8 dst[ETH_ALEN];
 	u8 src[ETH_ALEN];
-}__attribute__((packed));
+} __packed;
 
 typedef union _frameqos {
 	u16 shortdata;
@@ -1267,19 +1240,19 @@ struct ieee80211_qos_information_element {
 	u8 qui_subtype;
 	u8 version;
 	u8 ac_info;
-} __attribute__ ((packed));
+} __packed;
 
 struct ieee80211_qos_ac_parameter {
 	u8 aci_aifsn;
 	u8 ecw_min_max;
 	__le16 tx_op_limit;
-} __attribute__ ((packed));
+} __packed;
 
 struct ieee80211_qos_parameter_info {
 	struct ieee80211_qos_information_element info_element;
 	u8 reserved;
 	struct ieee80211_qos_ac_parameter ac_params_record[QOS_QUEUE_NUM];
-} __attribute__ ((packed));
+} __packed;
 
 struct ieee80211_qos_parameters {
 	__le16 cw_min[QOS_QUEUE_NUM];
@@ -1287,7 +1260,7 @@ struct ieee80211_qos_parameters {
 	u8 aifs[QOS_QUEUE_NUM];
 	u8 flag[QOS_QUEUE_NUM];
 	__le16 tx_op_limit[QOS_QUEUE_NUM];
-} __attribute__ ((packed));
+} __packed;
 
 struct ieee80211_qos_data {
 	struct ieee80211_qos_parameters parameters;
@@ -1300,7 +1273,7 @@ struct ieee80211_qos_data {
 struct ieee80211_tim_parameters {
 	u8 tim_count;
 	u8 tim_period;
-} __attribute__ ((packed));
+} __packed;
 
 //#else
 struct ieee80211_wmm_ac_param {
@@ -1313,7 +1286,7 @@ struct ieee80211_wmm_ts_info {
 	u8 ac_dir_tid;
 	u8 ac_up_psb;
 	u8 reserved;
-} __attribute__ ((packed));
+} __packed;
 
 struct ieee80211_wmm_tspec_elem {
 	struct ieee80211_wmm_ts_info ts_info;
@@ -1332,7 +1305,7 @@ struct ieee80211_wmm_tspec_elem {
 	u32 min_phy_rate;
 	u16 surp_band_allow;
 	u16 medium_time;
-}__attribute__((packed));
+} __packed;
 enum eap_type {
 	EAP_PACKET = 0,
 	EAPOL_START,
@@ -1371,7 +1344,7 @@ struct eapol {
 	u8 version;
 	u8 type;
 	u16 length;
-} __attribute__ ((packed));
+} __packed;
 
 struct ieee80211_softmac_stats{
 	unsigned int rx_ass_ok;
@@ -1401,7 +1374,7 @@ struct ieee80211_softmac_stats{
 struct ieee80211_info_element_hdr {
 	u8 id;
 	u8 len;
-} __attribute__ ((packed));
+} __packed;
 
 /*
  * These are the data types that can make up management packets
@@ -1414,7 +1387,7 @@ struct ieee80211_info_element_hdr {
 	u16 listen_interval;
 	struct {
 		u16 association_id:14, reserved:2;
-	} __attribute__ ((packed));
+	} __packed;
 	u32 time_stamp[2];
 	u16 reason;
 	u16 status;
@@ -1475,7 +1448,7 @@ struct	ether_header {
 	u8 ether_dhost[ETHER_ADDR_LEN];
 	u8 ether_shost[ETHER_ADDR_LEN];
 	u16 ether_type;
-} __attribute__((packed));
+} __packed;
 
 #ifndef ETHERTYPE_PAE
 #define	ETHERTYPE_PAE	0x888e		/* EAPOL PAE/802.1x */
@@ -1484,24 +1457,6 @@ struct	ether_header {
 #define	ETHERTYPE_IP	0x0800		/* IP protocol */
 #endif
 
-typedef struct _bss_ht{
-
-	bool				support_ht;
-
-	// HT related elements
-	u8					ht_cap_buf[32];
-	u16					ht_cap_len;
-	u8					ht_info_buf[32];
-	u16					ht_info_len;
-
-	HT_SPEC_VER			ht_spec_ver;
-	//HT_CAPABILITY_ELE			bdHTCapEle;
-	//HT_INFORMATION_ELE		bdHTInfoEle;
-
-	bool				aggregation;
-	bool				long_slot_time;
-}bss_ht, *pbss_ht;
-
 typedef enum _erp_t{
 	ERP_NonERPpresent	= 0x01,
 	ERP_UseProtection	= 0x02,
diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt.c
index 5533221..3995620 100644
--- a/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt.c
+++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt.c
@@ -11,12 +11,11 @@
  *
  */
 
-//#include <linux/config.h>
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/slab.h>
-#include <asm/string.h>
-#include <asm/errno.h>
+#include <linux/string.h>
+#include <linux/errno.h>
 
 #include "ieee80211.h"
 
@@ -66,8 +65,8 @@ void ieee80211_crypt_deinit_handler(unsigned long data)
 	spin_lock_irqsave(&ieee->lock, flags);
 	ieee80211_crypt_deinit_entries(ieee, 0);
 	if (!list_empty(&ieee->crypt_deinit_list)) {
-		printk(KERN_DEBUG "%s: entries remaining in delayed crypt "
-		       "deletion list\n", ieee->dev->name);
+		netdev_dbg(ieee->dev, "%s: entries remaining in delayed crypt deletion list\n",
+				ieee->dev->name);
 		ieee->crypt_deinit_timer.expires = jiffies + HZ;
 		add_timer(&ieee->crypt_deinit_timer);
 	}
@@ -118,7 +117,7 @@ int ieee80211_register_crypto_ops(struct ieee80211_crypto_ops *ops)
 	list_add(&alg->list, &hcrypt->algs);
 	spin_unlock_irqrestore(&hcrypt->lock, flags);
 
-	printk(KERN_DEBUG "ieee80211_crypt: registered algorithm '%s'\n",
+	pr_debug("ieee80211_crypt: registered algorithm '%s'\n",
 	       ops->name);
 
 	return 0;
@@ -146,8 +145,8 @@ int ieee80211_unregister_crypto_ops(struct ieee80211_crypto_ops *ops)
 	spin_unlock_irqrestore(&hcrypt->lock, flags);
 
 	if (del_alg) {
-		printk(KERN_DEBUG "ieee80211_crypt: unregistered algorithm "
-		       "'%s'\n", ops->name);
+		pr_debug("ieee80211_crypt: unregistered algorithm '%s'\n",
+				ops->name);
 		kfree(del_alg);
 	}
 
@@ -232,8 +231,8 @@ void __exit ieee80211_crypto_deinit(void)
 		struct ieee80211_crypto_alg *alg =
 			(struct ieee80211_crypto_alg *) ptr;
 		list_del(ptr);
-		printk(KERN_DEBUG "ieee80211_crypt: unregistered algorithm "
-		       "'%s' (deinit)\n", alg->ops->name);
+		pr_debug("ieee80211_crypt: unregistered algorithm '%s' (deinit)\n",
+				alg->ops->name);
 		kfree(alg);
 	}
 
diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_ccmp.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_ccmp.c
index 143b682..788704b 100644
--- a/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_ccmp.c
+++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_ccmp.c
@@ -9,7 +9,6 @@
  * more details.
  */
 
-//#include <linux/config.h>
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/slab.h>
@@ -18,7 +17,7 @@
 #include <linux/netdevice.h>
 #include <linux/if_ether.h>
 #include <linux/if_arp.h>
-#include <asm/string.h>
+#include <linux/string.h>
 #include <linux/wireless.h>
 
 #include "ieee80211.h"
@@ -130,9 +129,9 @@ static void ccmp_init_blocks(struct crypto_tfm *tfm,
 	qc_included = ((WLAN_FC_GET_TYPE(fc) == IEEE80211_FTYPE_DATA) &&
 		       (WLAN_FC_GET_STYPE(fc) & 0x08));
 	*/
-	// fixed by David :2006.9.6
-	qc_included = ((WLAN_FC_GET_TYPE(fc) == IEEE80211_FTYPE_DATA) &&
-		       (WLAN_FC_GET_STYPE(fc) & 0x80));
+	/* fixed by David :2006.9.6 */
+	qc_included = (WLAN_FC_GET_TYPE(fc) == IEEE80211_FTYPE_DATA) &&
+		       (WLAN_FC_GET_STYPE(fc) & 0x80);
 	aad_len = 22;
 	if (a4_included)
 		aad_len += 6;
@@ -209,7 +208,7 @@ static int ieee80211_ccmp_encrypt(struct sk_buff *skb, int hdr_len, void *priv)
 	pos = skb_push(skb, CCMP_HDR_LEN);
 	memmove(pos, pos + CCMP_HDR_LEN, hdr_len);
 	pos += hdr_len;
-//	mic = skb_put(skb, CCMP_MIC_LEN);
+	/* mic = skb_put(skb, CCMP_MIC_LEN); */
 
 	i = CCMP_PN_LEN - 1;
 	while (i >= 0) {
@@ -239,7 +238,7 @@ static int ieee80211_ccmp_encrypt(struct sk_buff *skb, int hdr_len, void *priv)
 		u8 *e = key->tx_e;
 		u8 *s0 = key->tx_s0;
 
-		//mic is moved to here by john
+		/* mic is moved to here by john */
 		mic = skb_put(skb, CCMP_MIC_LEN);
 
 		ccmp_init_blocks(key->tfm, hdr, key->tx_pn, data_len, b0, b, s0);
@@ -444,7 +443,7 @@ static char *ieee80211_ccmp_print_stats(char *p, void *priv)
 
 void ieee80211_ccmp_null(void)
 {
-//    printk("============>%s()\n", __func__);
+	/* printk("============>%s()\n", __func__); */
 	return;
 }
 
diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_tkip.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_tkip.c
index fcc90a5..e815c81 100644
--- a/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_tkip.c
+++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_tkip.c
@@ -9,7 +9,6 @@
  * more details.
  */
 
-//#include <linux/config.h>
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/slab.h>
@@ -18,7 +17,7 @@
 #include <linux/netdevice.h>
 #include <linux/if_ether.h>
 #include <linux/if_arp.h>
-#include <asm/string.h>
+#include <linux/string.h>
 
 #include "ieee80211.h"
 
diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_wep.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_wep.c
index 8c1bf1f..0a17f84 100644
--- a/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_wep.c
+++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_wep.c
@@ -9,13 +9,12 @@
  * more details.
  */
 
-//#include <linux/config.h>
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/slab.h>
 #include <linux/random.h>
 #include <linux/skbuff.h>
-#include <asm/string.h>
+#include <linux/string.h>
 
 #include "ieee80211.h"
 
@@ -49,14 +48,14 @@ static void *prism2_wep_init(int keyidx)
 
 	priv->tx_tfm = crypto_alloc_blkcipher("ecb(arc4)", 0, CRYPTO_ALG_ASYNC);
 	if (IS_ERR(priv->tx_tfm)) {
-		printk(KERN_DEBUG "ieee80211_crypt_wep: could not allocate "
+		pr_debug("ieee80211_crypt_wep: could not allocate "
 		       "crypto API arc4\n");
 		priv->tx_tfm = NULL;
 		goto fail;
 	}
 	priv->rx_tfm = crypto_alloc_blkcipher("ecb(arc4)", 0, CRYPTO_ALG_ASYNC);
 	if (IS_ERR(priv->rx_tfm)) {
-		printk(KERN_DEBUG "ieee80211_crypt_wep: could not allocate "
+		pr_debug("ieee80211_crypt_wep: could not allocate "
 		       "crypto API arc4\n");
 		priv->rx_tfm = NULL;
 		goto fail;
@@ -110,6 +109,7 @@ static int prism2_wep_encrypt(struct sk_buff *skb, int hdr_len, void *priv)
 	u32 crc;
 	u8 *icv;
 	struct scatterlist sg;
+
 	if (skb_headroom(skb) < 4 || skb_tailroom(skb) < 4 ||
 	    skb->len < hdr_len)
 		return -1;
@@ -128,6 +128,7 @@ static int prism2_wep_encrypt(struct sk_buff *skb, int hdr_len, void *priv)
 	 * can be used to speedup attacks, so avoid using them. */
 	if ((wep->iv & 0xff00) == 0xff00) {
 		u8 B = (wep->iv >> 16) & 0xff;
+
 		if (B >= 3 && B < klen)
 			wep->iv += 0x0100;
 	}
@@ -180,6 +181,7 @@ static int prism2_wep_decrypt(struct sk_buff *skb, int hdr_len, void *priv)
 	u32 crc;
 	u8 icv[4];
 	struct scatterlist sg;
+
 	if (skb->len < hdr_len + 8)
 		return -1;
 
@@ -256,6 +258,7 @@ static int prism2_wep_get_key(void *key, int len, u8 *seq, void *priv)
 static char *prism2_wep_print_stats(char *p, void *priv)
 {
 	struct prism2_wep_data *wep = priv;
+
 	p += sprintf(p, "key[%d] alg=WEP len=%d\n",
 		     wep->key_idx, wep->key_len);
 	return p;
diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_module.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_module.c
index afbd09d..31233d8 100644
--- a/drivers/staging/rtl8192u/ieee80211/ieee80211_module.c
+++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_module.c
@@ -31,7 +31,7 @@
 *******************************************************************************/
 
 #include <linux/compiler.h>
-//#include <linux/config.h>
+/* #include <linux/config.h> */
 #include <linux/errno.h>
 #include <linux/if_arp.h>
 #include <linux/in6.h>
@@ -133,15 +133,14 @@ struct net_device *alloc_ieee80211(int sizeof_priv)
 	ieee->ieee802_1x = 1; /* Default to supporting 802.1x */
 
 	INIT_LIST_HEAD(&ieee->crypt_deinit_list);
-	init_timer(&ieee->crypt_deinit_timer);
-	ieee->crypt_deinit_timer.data = (unsigned long)ieee;
-	ieee->crypt_deinit_timer.function = ieee80211_crypt_deinit_handler;
+	setup_timer(&ieee->crypt_deinit_timer,
+		    ieee80211_crypt_deinit_handler, (unsigned long)ieee);
 
 	spin_lock_init(&ieee->lock);
 	spin_lock_init(&ieee->wpax_suitlist_lock);
 	spin_lock_init(&ieee->bw_spinlock);
 	spin_lock_init(&ieee->reorder_spinlock);
-	//added by WB
+	/* added by WB */
 	atomic_set(&(ieee->atm_chnlop), 0);
 	atomic_set(&(ieee->atm_swbw), 0);
 
@@ -153,7 +152,7 @@ struct net_device *alloc_ieee80211(int sizeof_priv)
 	ieee->ieee802_1x = 1;
 	ieee->raw_tx = 0;
 	//ieee->hwsec_support = 1; //defalt support hw security. //use module_param instead.
-	ieee->hwsec_active = 0; //disable hwsec, switch it on when necessary.
+	ieee->hwsec_active = 0; /* disable hwsec, switch it on when necessary. */
 
 	ieee80211_softmac_init(ieee);
 
@@ -164,7 +163,7 @@ struct net_device *alloc_ieee80211(int sizeof_priv)
 		goto failed;
 	}
 	HTUpdateDefaultSetting(ieee);
-	HTInitializeHTInfo(ieee); //may move to other place.
+	HTInitializeHTInfo(ieee); /* may move to other place. */
 	TSInitialize(ieee);
 
 	for (i = 0; i < IEEE_IBSS_MAC_HASH_SIZE; i++)
@@ -176,7 +175,7 @@ struct net_device *alloc_ieee80211(int sizeof_priv)
 	  ieee->last_packet_time[i] = 0;
 	}
 
-//These function were added to load crypte module autoly
+/* These function were added to load crypte module autoly */
 	ieee80211_tkip_null();
 	ieee80211_wep_null();
 	ieee80211_ccmp_null();
@@ -195,7 +194,7 @@ void free_ieee80211(struct net_device *dev)
 {
 	struct ieee80211_device *ieee = netdev_priv(dev);
 	int i;
-	//struct list_head *p, *q;
+	/* struct list_head *p, *q; */
 //	del_timer_sync(&ieee->SwBwTimer);
 	kfree(ieee->pHTInfo);
 	ieee->pHTInfo = NULL;
@@ -239,13 +238,15 @@ static int debug = \
 	//		    IEEE80211_DL_REORDER|
 //			    IEEE80211_DL_TRACE  |
 			    //IEEE80211_DL_DATA	|
-			    IEEE80211_DL_ERR	  //awayls open this flags to show error out
+			    IEEE80211_DL_ERR	  /* awayls open this flags to show error out */
 			    ;
 static struct proc_dir_entry *ieee80211_proc;
 
 static int show_debug_level(struct seq_file *m, void *v)
 {
-	return seq_printf(m, "0x%08X\n", ieee80211_debug_level);
+	seq_printf(m, "0x%08X\n", ieee80211_debug_level);
+
+	return 0;
 }
 
 static ssize_t write_debug_level(struct file *file, const char __user *buffer,
@@ -284,7 +285,7 @@ int __init ieee80211_debug_init(void)
 				" proc directory\n");
 		return -EIO;
 	}
-	e = proc_create("debug_level", S_IRUGO | S_IWUSR, 
+	e = proc_create("debug_level", S_IRUGO | S_IWUSR,
 			      ieee80211_proc, &fops);
 	if (!e) {
 		remove_proc_entry(DRV_NAME, init_net.proc_net);
@@ -303,7 +304,6 @@ void __exit ieee80211_debug_exit(void)
 	}
 }
 
-#include <linux/moduleparam.h>
 module_param(debug, int, 0444);
 MODULE_PARM_DESC(debug, "debug output mask");
 #endif
diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_rx.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_rx.c
index d401dbf..9fbb53d 100644
--- a/drivers/staging/rtl8192u/ieee80211/ieee80211_rx.c
+++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_rx.c
@@ -22,7 +22,6 @@
 
 
 #include <linux/compiler.h>
-//#include <linux/config.h>
 #include <linux/errno.h>
 #include <linux/if_arp.h>
 #include <linux/in6.h>
@@ -39,7 +38,7 @@
 #include <linux/types.h>
 #include <linux/wireless.h>
 #include <linux/etherdevice.h>
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
 #include <linux/ctype.h>
 
 #include "ieee80211.h"
@@ -56,7 +55,7 @@ static inline void ieee80211_monitor_rx(struct ieee80211_device *ieee,
 
 	skb_pull(skb, ieee80211_get_hdrlen(fc));
 	skb->pkt_type = PACKET_OTHERHOST;
-	skb->protocol = __constant_htons(ETH_P_80211_RAW);
+	skb->protocol = htons(ETH_P_80211_RAW);
 	memset(skb->cb, 0, sizeof(skb->cb));
 	netif_rx(skb);
 }
@@ -222,8 +221,8 @@ ieee80211_rx_frame_mgmt(struct ieee80211_device *ieee, struct sk_buff *skb,
 
 	rx_stats->len = skb->len;
 	ieee80211_rx_mgt(ieee,(struct ieee80211_hdr_4addr *)skb->data,rx_stats);
-	//if ((ieee->state == IEEE80211_LINKED) && (memcmp(hdr->addr3, ieee->current_network.bssid, ETH_ALEN)))
-	if ((memcmp(hdr->addr1, ieee->dev->dev_addr, ETH_ALEN)))//use ADDR1 to perform address matching for Management frames
+	/* if ((ieee->state == IEEE80211_LINKED) && (memcmp(hdr->addr3, ieee->current_network.bssid, ETH_ALEN))) */
+	if ((memcmp(hdr->addr1, ieee->dev->dev_addr, ETH_ALEN)))/* use ADDR1 to perform address matching for Management frames */
 	{
 		dev_kfree_skb_any(skb);
 		return 0;
@@ -609,12 +608,12 @@ static void RxReorderIndicatePacket(struct ieee80211_device *ieee,
 	bool			bMatchWinStart = false, bPktInBuf = false;
 	IEEE80211_DEBUG(IEEE80211_DL_REORDER,"%s(): Seq is %d,pTS->RxIndicateSeq is %d, WinSize is %d\n",__func__,SeqNum,pTS->RxIndicateSeq,WinSize);
 	/* Rx Reorder initialize condition.*/
-	if(pTS->RxIndicateSeq == 0xffff) {
+	if (pTS->RxIndicateSeq == 0xffff) {
 		pTS->RxIndicateSeq = SeqNum;
 	}
 
 	/* Drop out the packet which SeqNum is smaller than WinStart */
-	if(SN_LESS(SeqNum, pTS->RxIndicateSeq)) {
+	if (SN_LESS(SeqNum, pTS->RxIndicateSeq)) {
 		IEEE80211_DEBUG(IEEE80211_DL_REORDER,"Packet Drop! IndicateSeq: %d, NewSeq: %d\n",
 				 pTS->RxIndicateSeq, SeqNum);
 		pHTInfo->RxReorderDropCounter++;
@@ -717,7 +716,7 @@ static void RxReorderIndicatePacket(struct ieee80211_device *ieee,
 		    SN_EQUAL(pReorderEntry->SeqNum, pTS->RxIndicateSeq))
 		{
 			/* This protect buffer from overflow. */
-			if(index >= REORDER_WIN_SIZE) {
+			if (index >= REORDER_WIN_SIZE) {
 				IEEE80211_DEBUG(IEEE80211_DL_ERR, "RxReorderIndicatePacket(): Buffer overflow!! \n");
 				bPktInBuf = true;
 				break;
@@ -741,7 +740,7 @@ static void RxReorderIndicatePacket(struct ieee80211_device *ieee,
 	}
 
 	/* Handling pending timer. Set this timer to prevent from long time Rx buffering.*/
-	if(index>0) {
+	if (index>0) {
 		// Cancel previous pending timer.
 	//	del_timer_sync(&pTS->RxPktPendingTimer);
 		pTS->RxTimeoutIndicateSeq = 0xffff;
@@ -754,7 +753,7 @@ static void RxReorderIndicatePacket(struct ieee80211_device *ieee,
 		ieee80211_indicate_packets(ieee, prxbIndicateArray, index);
 	}
 
-	if(bPktInBuf && pTS->RxTimeoutIndicateSeq==0xffff) {
+	if (bPktInBuf && pTS->RxTimeoutIndicateSeq==0xffff) {
 		// Set new pending timer.
 		IEEE80211_DEBUG(IEEE80211_DL_REORDER,"%s(): SET rx timeout timer\n", __func__);
 		pTS->RxTimeoutIndicateSeq = pTS->RxIndicateSeq;
@@ -784,16 +783,16 @@ static u8 parse_subframe(struct sk_buff *skb,
 	/* just for debug purpose */
 	SeqNum = WLAN_GET_SEQ_SEQ(le16_to_cpu(hdr->seq_ctl));
 
-	if((IEEE80211_QOS_HAS_SEQ(fc))&&\
+	if ((IEEE80211_QOS_HAS_SEQ(fc))&&\
 			(((frameqos *)(skb->data + IEEE80211_3ADDR_LEN))->field.reserved)) {
 		bIsAggregateFrame = true;
 	}
 
-	if(IEEE80211_QOS_HAS_SEQ(fc)) {
+	if (IEEE80211_QOS_HAS_SEQ(fc)) {
 		LLCOffset += 2;
 	}
 
-	if(rx_stats->bContainHTC) {
+	if (rx_stats->bContainHTC) {
 		LLCOffset += sHTCLng;
 	}
 	//printk("ChkLength = %d\n", LLCOffset);
@@ -827,7 +826,7 @@ static u8 parse_subframe(struct sk_buff *skb,
 			//==m==>change the length order
 			nSubframe_Length = (nSubframe_Length>>8) + (nSubframe_Length<<8);
 
-			if(skb->len<(ETHERNET_HEADER_SIZE + nSubframe_Length)) {
+			if (skb->len<(ETHERNET_HEADER_SIZE + nSubframe_Length)) {
 				printk("%s: A-MSDU parse error!! pRfd->nTotalSubframe : %d\n",\
 						__func__, rxb->nr_subframes);
 				printk("%s: A-MSDU parse error!! Subframe Length: %d\n",__func__, nSubframe_Length);
@@ -853,19 +852,19 @@ static u8 parse_subframe(struct sk_buff *skb,
 			memcpy(data_ptr, skb->data, nSubframe_Length);
 #endif
 			rxb->subframes[rxb->nr_subframes++] = sub_skb;
-			if(rxb->nr_subframes >= MAX_SUBFRAME_COUNT) {
+			if (rxb->nr_subframes >= MAX_SUBFRAME_COUNT) {
 				IEEE80211_DEBUG_RX("ParseSubframe(): Too many Subframes! Packets dropped!\n");
 				break;
 			}
 			skb_pull(skb, nSubframe_Length);
 
-			if(skb->len != 0) {
+			if (skb->len != 0) {
 				nPadding_Length = 4 - ((nSubframe_Length + ETHERNET_HEADER_SIZE) % 4);
-				if(nPadding_Length == 4) {
+				if (nPadding_Length == 4) {
 					nPadding_Length = 0;
 				}
 
-				if(skb->len < nPadding_Length) {
+				if (skb->len < nPadding_Length) {
 					return 0;
 				}
 
@@ -939,12 +938,12 @@ int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb,
 	frag = WLAN_GET_SEQ_FRAG(sc);
 	hdrlen = ieee80211_get_hdrlen(fc);
 
-	if(HTCCheck(ieee, skb->data))
+	if (HTCCheck(ieee, skb->data))
 	{
 		if(net_ratelimit())
 		printk("find HTCControl\n");
 		hdrlen += 4;
-		rx_stats->bContainHTC = 1;
+		rx_stats->bContainHTC = true;
 	}
 
 	//IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA, skb->data, skb->len);
@@ -1274,13 +1273,13 @@ int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb,
 	}
 */
 //added by amy for reorder
-	if(ieee->current_network.qos_data.active && IsQoSDataFrame(skb->data)
+	if (ieee->current_network.qos_data.active && IsQoSDataFrame(skb->data)
 		&& !is_multicast_ether_addr(hdr->addr1))
 	{
 		TID = Frame_QoSTID(skb->data);
 		SeqNum = WLAN_GET_SEQ_SEQ(sc);
 		GetTs(ieee,(PTS_COMMON_INFO *) &pTS,hdr->addr2,TID,RX_DIR,true);
-		if(TID !=0 && TID !=3)
+		if (TID !=0 && TID !=3)
 		{
 			ieee->bis_any_nonbepkts = true;
 		}
@@ -1290,7 +1289,7 @@ int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb,
 	payload = skb->data + hdrlen;
 	//ethertype = (payload[6] << 8) | payload[7];
 	rxb = kmalloc(sizeof(struct ieee80211_rxb), GFP_ATOMIC);
-	if(rxb == NULL)
+	if (rxb == NULL)
 	{
 		IEEE80211_DEBUG(IEEE80211_DL_ERR,"%s(): kmalloc rxb error\n",__func__);
 		goto rx_dropped;
@@ -1336,7 +1335,7 @@ int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb,
 
 				stats->rx_packets++;
 				stats->rx_bytes += sub_skb->len;
-				if(is_multicast_ether_addr(dst)) {
+				if (is_multicast_ether_addr(dst)) {
 					stats->multicast++;
 				}
 
@@ -1590,14 +1589,14 @@ static inline void ieee80211_extract_country_ie(
 	u8 *addr2
 )
 {
-	if(IS_DOT11D_ENABLE(ieee))
+	if (IS_DOT11D_ENABLE(ieee))
 	{
-		if(info_element->len!= 0)
+		if (info_element->len!= 0)
 		{
 			memcpy(network->CountryIeBuf, info_element->data, info_element->len);
 			network->CountryIeLen = info_element->len;
 
-			if(!IS_COUNTRY_IE_VALID(ieee))
+			if (!IS_COUNTRY_IE_VALID(ieee))
 			{
 				Dot11d_UpdateCountryIe(ieee, addr2, info_element->len, info_element->data);
 			}
@@ -1608,7 +1607,7 @@ static inline void ieee80211_extract_country_ie(
 		// some AP (e.g. Cisco 1242) don't include country IE in their
 		// probe response frame.
 		//
-		if(IS_EQUAL_CIE_SRC(ieee, addr2) )
+		if (IS_EQUAL_CIE_SRC(ieee, addr2) )
 		{
 			UPDATE_CIE_WATCHDOG(ieee);
 		}
@@ -1705,7 +1704,7 @@ int ieee80211_parse_info_param(struct ieee80211_device *ieee,
 #ifdef CONFIG_IEEE80211_DEBUG
 				p += snprintf(p, sizeof(rates_str) -
 					      (p - rates_str), "%02X ",
-					      network->rates[i]);
+					      network->rates_ex[i]);
 #endif
 				if (ieee80211_is_ofdm_rate
 				    (info_element->data[i])) {
@@ -1888,7 +1887,7 @@ int ieee80211_parse_info_param(struct ieee80211_device *ieee,
 
 			//if(tmp_htcap_len !=0  ||  tmp_htinfo_len != 0)
 			{
-				if((info_element->len >= 3 &&
+				if ((info_element->len >= 3 &&
 					 info_element->data[0] == 0x00 &&
 					 info_element->data[1] == 0x05 &&
 					 info_element->data[2] == 0xb5) ||
@@ -1940,7 +1939,7 @@ int ieee80211_parse_info_param(struct ieee80211_device *ieee,
 			else
 				network->cisco_cap_exist = false;
 			//added by amy for LEAP of cisco
-			if(info_element->len > 4 &&
+			if (info_element->len > 4 &&
 				info_element->data[0] == 0x00 &&
 				info_element->data[1] == 0x40 &&
 				info_element->data[2] == 0x96 &&
@@ -1976,7 +1975,7 @@ int ieee80211_parse_info_param(struct ieee80211_device *ieee,
 					network->bCcxRmEnable = false;
 				}
 			}
-			if(info_element->len > 4  &&
+			if (info_element->len > 4  &&
 				info_element->data[0] == 0x00 &&
 				info_element->data[1] == 0x40 &&
 				info_element->data[2] == 0x96 &&
@@ -2296,7 +2295,7 @@ static inline void update_network(struct ieee80211_network *dst,
 	dst->rates_len = src->rates_len;
 	memcpy(dst->rates_ex, src->rates_ex, src->rates_ex_len);
 	dst->rates_ex_len = src->rates_ex_len;
-	if(src->ssid_len > 0)
+	if (src->ssid_len > 0)
 	{
 		memset(dst->ssid, 0, dst->ssid_len);
 		dst->ssid_len = src->ssid_len;
@@ -2352,7 +2351,7 @@ static inline void update_network(struct ieee80211_network *dst,
 		dst->qos_data.param_count = src->qos_data.param_count;
 	}
 
-	if(dst->qos_data.supported == 1) {
+	if (dst->qos_data.supported == 1) {
 		dst->QoS_Enable = 1;
 		if(dst->ssid_len)
 			IEEE80211_DEBUG_QOS
@@ -2367,7 +2366,7 @@ static inline void update_network(struct ieee80211_network *dst,
 
 	/* dst->last_associate is not overwritten */
 	dst->wmm_info = src->wmm_info; //sure to exist in beacon or probe response frame.
-	if(src->wmm_param[0].ac_aci_acm_aifsn|| \
+	if (src->wmm_param[0].ac_aci_acm_aifsn|| \
 	   src->wmm_param[1].ac_aci_acm_aifsn|| \
 	   src->wmm_param[2].ac_aci_acm_aifsn|| \
 	   src->wmm_param[3].ac_aci_acm_aifsn) {
@@ -2456,7 +2455,7 @@ static inline void ieee80211_process_probe_response(
 
 	if (!IsLegalChannel(ieee, network.channel))
 		return;
-	if(ieee->bGlobalDomain)
+	if (ieee->bGlobalDomain)
 	{
 		if (WLAN_FC_GET_STYPE(beacon->header.frame_ctl) == IEEE80211_STYPE_PROBE_RESP)
 		{
@@ -2472,7 +2471,7 @@ static inline void ieee80211_process_probe_response(
 			else
 			{
 				// Filter over channel ch12~14
-				if(network.channel > 11)
+				if (network.channel > 11)
 				{
 					printk("GetScanInfo(): For Global Domain, filter probe response at channel(%d).\n", network.channel);
 					return;
@@ -2493,7 +2492,7 @@ static inline void ieee80211_process_probe_response(
 			else
 			{
 				// Filter over channel ch12~14
-				if(network.channel > 14)
+				if (network.channel > 14)
 				{
 					printk("GetScanInfo(): For Global Domain, filter beacon at channel(%d).\n",network.channel);
 					return;
@@ -2514,9 +2513,9 @@ static inline void ieee80211_process_probe_response(
 
 	spin_lock_irqsave(&ieee->lock, flags);
 
-	if(is_same_network(&ieee->current_network, &network, ieee)) {
+	if (is_same_network(&ieee->current_network, &network, ieee)) {
 		update_network(&ieee->current_network, &network);
-		if((ieee->current_network.mode == IEEE_N_24G || ieee->current_network.mode == IEEE_G)
+		if ((ieee->current_network.mode == IEEE_N_24G || ieee->current_network.mode == IEEE_G)
 		&& ieee->current_network.berp_info_valid){
 		if(ieee->current_network.erp_value& ERP_UseProtection)
 			ieee->current_network.buseprotection = true;
@@ -2606,7 +2605,7 @@ static inline void ieee80211_process_probe_response(
 	spin_unlock_irqrestore(&ieee->lock, flags);
 	if (is_beacon(beacon->header.frame_ctl)&&is_same_network(&ieee->current_network, &network, ieee)&&\
 		(ieee->state == IEEE80211_LINKED)) {
-		if(ieee->handle_beacon != NULL) {
+		if (ieee->handle_beacon != NULL) {
 			ieee->handle_beacon(ieee->dev,beacon,&ieee->current_network);
 		}
 	}
diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c
index d147187..c238881 100644
--- a/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c
+++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c
@@ -62,7 +62,7 @@ static void ieee80211_MFIE_Brate(struct ieee80211_device *ieee, u8 **tag_p)
 {
 	u8 *tag = *tag_p;
 
-	if (ieee->modulation & IEEE80211_CCK_MODULATION){
+	if (ieee->modulation & IEEE80211_CCK_MODULATION) {
 		*tag++ = MFIE_TYPE_RATES;
 		*tag++ = 4;
 		*tag++ = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_1MB;
@@ -79,7 +79,7 @@ static void ieee80211_MFIE_Grate(struct ieee80211_device *ieee, u8 **tag_p)
 {
 	u8 *tag = *tag_p;
 
-		if (ieee->modulation & IEEE80211_OFDM_MODULATION){
+		if (ieee->modulation & IEEE80211_OFDM_MODULATION) {
 
 		*tag++ = MFIE_TYPE_RATES_EX;
 		*tag++ = 8;
@@ -192,7 +192,7 @@ static u8 MgntQuery_MgntFrameTxRate(struct ieee80211_device *ieee)
 	else
 		rate = ieee->basic_rate & 0x7f;
 
-	if(rate == 0){
+	if (rate == 0) {
 		// 2005.01.26, by rcnjko.
 		if(ieee->mode == IEEE_A||
 		   ieee->mode== IEEE_N_5G||
@@ -369,7 +369,7 @@ static void ieee80211_send_beacon(struct ieee80211_device *ieee)
 	//unsigned long flags;
 	skb = ieee80211_get_beacon_(ieee);
 
-	if (skb){
+	if (skb) {
 		softmac_mgmt_xmit(skb, ieee);
 		ieee->softmac_stats.tx_beacons++;
 		//dev_kfree_skb_any(skb);//edit by thomas
@@ -378,7 +378,7 @@ static void ieee80211_send_beacon(struct ieee80211_device *ieee)
 //		(MSECS( ieee->current_network.beacon_interval -5));
 
 	//spin_lock_irqsave(&ieee->beacon_lock,flags);
-	if(ieee->beacon_txing && ieee->ieee_up){
+	if (ieee->beacon_txing && ieee->ieee_up) {
 //		if(!timer_pending(&ieee->beacon_timer))
 //			add_timer(&ieee->beacon_timer);
 		mod_timer(&ieee->beacon_timer,jiffies+(MSECS(ieee->current_network.beacon_interval-5)));
@@ -404,7 +404,7 @@ static void ieee80211_send_probe(struct ieee80211_device *ieee)
 	struct sk_buff *skb;
 
 	skb = ieee80211_probe_req(ieee);
-	if (skb){
+	if (skb) {
 		softmac_mgmt_xmit(skb, ieee);
 		ieee->softmac_stats.tx_probe_rq++;
 		//dev_kfree_skb_any(skb);//edit by thomas
@@ -413,7 +413,7 @@ static void ieee80211_send_probe(struct ieee80211_device *ieee)
 
 static void ieee80211_send_probe_requests(struct ieee80211_device *ieee)
 {
-	if (ieee->active_scan && (ieee->softmac_features & IEEE_SOFTMAC_PROBERQ)){
+	if (ieee->active_scan && (ieee->softmac_features & IEEE_SOFTMAC_PROBERQ)) {
 		ieee80211_send_probe(ieee);
 		ieee80211_send_probe(ieee);
 	}
@@ -587,7 +587,7 @@ static void ieee80211_softmac_stop_scan(struct ieee80211_device *ieee)
 	down(&ieee->scan_sem);
 //	spin_lock_irqsave(&ieee->lock, flags);
 
-	if (ieee->scanning == 1){
+	if (ieee->scanning == 1) {
 		ieee->scanning = 0;
 
 		cancel_delayed_work(&ieee->softmac_scan_wq);
@@ -609,15 +609,15 @@ EXPORT_SYMBOL(ieee80211_stop_scan);
 /* called with ieee->lock held */
 static void ieee80211_start_scan(struct ieee80211_device *ieee)
 {
-	if(IS_DOT11D_ENABLE(ieee) )
+	if (IS_DOT11D_ENABLE(ieee) )
 	{
-		if(IS_COUNTRY_IE_VALID(ieee))
+		if (IS_COUNTRY_IE_VALID(ieee))
 		{
 			RESET_CIE_WATCHDOG(ieee);
 		}
 	}
 	if (ieee->softmac_features & IEEE_SOFTMAC_SCAN){
-		if (ieee->scanning == 0){
+		if (ieee->scanning == 0) {
 			ieee->scanning = 1;
 			queue_delayed_work(ieee->wq, &ieee->softmac_scan_wq, 0);
 		}
@@ -629,9 +629,9 @@ static void ieee80211_start_scan(struct ieee80211_device *ieee)
 /* called with wx_sem held */
 void ieee80211_start_scan_syncro(struct ieee80211_device *ieee)
 {
-	if(IS_DOT11D_ENABLE(ieee) )
+	if (IS_DOT11D_ENABLE(ieee) )
 	{
-		if(IS_COUNTRY_IE_VALID(ieee))
+		if (IS_COUNTRY_IE_VALID(ieee))
 		{
 			RESET_CIE_WATCHDOG(ieee);
 		}
@@ -739,7 +739,7 @@ static struct sk_buff *ieee80211_probe_resp(struct ieee80211_device *ieee, u8 *d
 	HTConstructInfoElement(ieee,tmp_ht_info_buf,&tmp_ht_info_len, encrypt);
 
 
-	if(pHTInfo->bRegRT2RTAggregation)
+	if (pHTInfo->bRegRT2RTAggregation)
 	{
 		tmp_generic_ie_buf = ieee->pHTInfo->szRT2RTAggBuffer;
 		tmp_generic_ie_len = sizeof(ieee->pHTInfo->szRT2RTAggBuffer);
@@ -803,7 +803,7 @@ static struct sk_buff *ieee80211_probe_resp(struct ieee80211_device *ieee, u8 *d
 	*(tag++) = 1;
 	*(tag++) = ieee->current_network.channel;
 
-	if(atim_len){
+	if (atim_len) {
 		*(tag++) = MFIE_TYPE_IBSS_SET;
 		*(tag++) = 2;
 
@@ -812,12 +812,12 @@ static struct sk_buff *ieee80211_probe_resp(struct ieee80211_device *ieee, u8 *d
 		tag+=2;
 	}
 
-	if(erp_len){
+	if (erp_len) {
 		*(tag++) = MFIE_TYPE_ERP;
 		*(tag++) = 1;
 		*(tag++) = erpinfo_content;
 	}
-	if(rate_ex_len){
+	if (rate_ex_len) {
 		*(tag++) = MFIE_TYPE_RATES_EX;
 		*(tag++) = rate_ex_len-2;
 		memcpy(tag, ieee->current_network.rates_ex, rate_ex_len-2);
@@ -877,7 +877,7 @@ static struct sk_buff *ieee80211_assoc_resp(struct ieee80211_device *ieee,
 		crypt = ieee->crypt[ieee->tx_keyidx];
 	else crypt = NULL;
 
-	encrypt = (crypt && crypt->ops);
+	encrypt = crypt && crypt->ops;
 
 	if (encrypt)
 		assoc->capability |= cpu_to_le16(WLAN_CAPABILITY_PRIVACY);
@@ -1016,12 +1016,12 @@ inline struct sk_buff *ieee80211_association_req(struct ieee80211_network *beaco
 	encrypt = ieee->host_encrypt && crypt && crypt->ops && ((0 == strcmp(crypt->ops->name,"WEP") || wpa_ie_len));
 
 	//Include High Throuput capability && Realtek proprietary
-	if(ieee->pHTInfo->bCurrentHTSupport&&ieee->pHTInfo->bEnableHT)
+	if (ieee->pHTInfo->bCurrentHTSupport&&ieee->pHTInfo->bEnableHT)
 	{
 		ht_cap_buf = (u8 *)&(ieee->pHTInfo->SelfHTCap);
 		ht_cap_len = sizeof(ieee->pHTInfo->SelfHTCap);
 		HTConstructCapabilityElement(ieee, ht_cap_buf, &ht_cap_len, encrypt);
-		if(ieee->pHTInfo->bCurrentRT2RTAggregation)
+		if (ieee->pHTInfo->bCurrentRT2RTAggregation)
 		{
 			realtek_ie_buf = ieee->pHTInfo->szRT2RTAggBuffer;
 			realtek_ie_len = sizeof( ieee->pHTInfo->szRT2RTAggBuffer);
@@ -1029,16 +1029,16 @@ inline struct sk_buff *ieee80211_association_req(struct ieee80211_network *beaco
 
 		}
 	}
-	if(ieee->qos_support){
+	if (ieee->qos_support) {
 		wmm_info_len = beacon->qos_data.supported?9:0;
 	}
 
 
-	if(beacon->bCkipSupported)
+	if (beacon->bCkipSupported)
 	{
 		ckip_ie_len = 30+2;
 	}
-	if(beacon->bCcxRmEnable)
+	if (beacon->bCcxRmEnable)
 	{
 		ccxrm_ie_len = 6+2;
 	}
@@ -1141,7 +1141,7 @@ inline struct sk_buff *ieee80211_association_req(struct ieee80211_network *beaco
 		tag += osCcxAironetIE.Length;
 	}
 
-	if(beacon->bCcxRmEnable)
+	if (beacon->bCcxRmEnable)
 	{
 		static u8 CcxRmCapBuf[] = {0x00, 0x40, 0x96, 0x01, 0x01, 0x00};
 		OCTET_STRING osCcxRmCap;
@@ -1168,8 +1168,8 @@ inline struct sk_buff *ieee80211_association_req(struct ieee80211_network *beaco
 		tag += osCcxVerNum.Length;
 	}
 	//HT cap element
-	if(ieee->pHTInfo->bCurrentHTSupport&&ieee->pHTInfo->bEnableHT){
-		if(ieee->pHTInfo->ePeerHTSpecVer != HT_SPEC_VER_EWC)
+	if (ieee->pHTInfo->bCurrentHTSupport && ieee->pHTInfo->bEnableHT) {
+		if (ieee->pHTInfo->ePeerHTSpecVer != HT_SPEC_VER_EWC)
 		{
 			tag = skb_put(skb, ht_cap_len);
 			*tag++ = MFIE_TYPE_HT_CAP;
@@ -1182,22 +1182,22 @@ inline struct sk_buff *ieee80211_association_req(struct ieee80211_network *beaco
 
 	//choose what wpa_supplicant gives to associate.
 	tag = skb_put(skb, wpa_ie_len);
-	if (wpa_ie_len){
+	if (wpa_ie_len) {
 		memcpy(tag, ieee->wpa_ie, ieee->wpa_ie_len);
 	}
 
 	tag = skb_put(skb, wmm_info_len);
-	if(wmm_info_len) {
+	if (wmm_info_len) {
 	  ieee80211_WMM_Info(ieee, &tag);
 	}
 #ifdef THOMAS_TURBO
 	tag = skb_put(skb, turbo_info_len);
-	if(turbo_info_len) {
+	if (turbo_info_len) {
 		ieee80211_TURBO_Info(ieee, &tag);
 	}
 #endif
 
-	if(ieee->pHTInfo->bCurrentHTSupport&&ieee->pHTInfo->bEnableHT){
+	if (ieee->pHTInfo->bCurrentHTSupport && ieee->pHTInfo->bEnableHT) {
 		if(ieee->pHTInfo->ePeerHTSpecVer == HT_SPEC_VER_EWC)
 		{
 			tag = skb_put(skb, ht_cap_len);
@@ -1207,7 +1207,7 @@ inline struct sk_buff *ieee80211_association_req(struct ieee80211_network *beaco
 			tag += ht_cap_len -2;
 		}
 
-		if(ieee->pHTInfo->bCurrentRT2RTAggregation){
+		if (ieee->pHTInfo->bCurrentRT2RTAggregation) {
 			tag = skb_put(skb, realtek_ie_len);
 			*tag++ = MFIE_TYPE_GENERIC;
 			*tag++ = realtek_ie_len - 2;
@@ -1273,7 +1273,7 @@ static void ieee80211_associate_step1(struct ieee80211_device *ieee)
 		//printk(KERN_WARNING "Sending authentication request\n");
 		softmac_mgmt_xmit(skb, ieee);
 		//BUGON when you try to add_timer twice, using mod_timer may be better, john0709
-		if(!timer_pending(&ieee->associate_timer)){
+		if (!timer_pending(&ieee->associate_timer)) {
 			ieee->associate_timer.expires = jiffies + (HZ / 2);
 			add_timer(&ieee->associate_timer);
 		}
@@ -1358,7 +1358,7 @@ static void ieee80211_associate_complete_wq(struct work_struct *work)
 	}
 	ieee->LinkDetectInfo.SlotNum = 2 * (1 + ieee->current_network.beacon_interval/500);
 	// To prevent the immediately calling watch_dog after association.
-	if(ieee->LinkDetectInfo.NumRecvBcnInPeriod==0||ieee->LinkDetectInfo.NumRecvDataInPeriod==0 )
+	if (ieee->LinkDetectInfo.NumRecvBcnInPeriod==0||ieee->LinkDetectInfo.NumRecvDataInPeriod==0 )
 	{
 		ieee->LinkDetectInfo.NumRecvBcnInPeriod = 1;
 		ieee->LinkDetectInfo.NumRecvDataInPeriod= 1;
@@ -1371,7 +1371,7 @@ static void ieee80211_associate_complete_wq(struct work_struct *work)
 	else if(ieee->is_silent_reset == 1)
 	{
 		printk("==================>silent reset associate\n");
-		ieee->is_silent_reset = 0;
+		ieee->is_silent_reset = false;
 	}
 
 	if (ieee->data_hard_resume)
@@ -1430,7 +1430,7 @@ inline void ieee80211_softmac_new_net(struct ieee80211_device *ieee, struct ieee
 		return;
 
 
-	if (ieee->iw_mode == IW_MODE_INFRA || ieee->iw_mode == IW_MODE_ADHOC){
+	if (ieee->iw_mode == IW_MODE_INFRA || ieee->iw_mode == IW_MODE_ADHOC) {
 		/* if the user specified the AP MAC, we need also the essid
 		 * This could be obtained by beacons or, if the network does not
 		 * broadcast it, it can be put manually.
@@ -1458,13 +1458,13 @@ inline void ieee80211_softmac_new_net(struct ieee80211_device *ieee, struct ieee
 				/* if the essid is hidden replace it with the
 				* essid provided by the user.
 				*/
-				if (!ssidbroad){
+				if (!ssidbroad) {
 					strncpy(tmp_ssid, ieee->current_network.ssid, IW_ESSID_MAX_SIZE);
 					tmp_ssid_len = ieee->current_network.ssid_len;
 				}
 				memcpy(&ieee->current_network, net, sizeof(struct ieee80211_network));
 
-				if (!ssidbroad){
+				if (!ssidbroad) {
 					strncpy(ieee->current_network.ssid, tmp_ssid, IW_ESSID_MAX_SIZE);
 					ieee->current_network.ssid_len = tmp_ssid_len;
 				}
@@ -1541,16 +1541,16 @@ static inline u16 auth_parse(struct sk_buff *skb, u8 **challenge, int *chlen)
 {
 	struct ieee80211_authentication *a;
 	u8 *t;
-	if (skb->len <  (sizeof(struct ieee80211_authentication)-sizeof(struct ieee80211_info_element))){
+	if (skb->len < (sizeof(struct ieee80211_authentication) - sizeof(struct ieee80211_info_element))) {
 		IEEE80211_DEBUG_MGMT("invalid len in auth resp: %d\n",skb->len);
 		return 0xcafe;
 	}
 	*challenge = NULL;
 	a = (struct ieee80211_authentication *) skb->data;
-	if(skb->len > (sizeof(struct ieee80211_authentication) +3)){
+	if (skb->len > (sizeof(struct ieee80211_authentication) + 3)) {
 		t = skb->data + sizeof(struct ieee80211_authentication);
 
-		if(*(t++) == MFIE_TYPE_CHALLENGE){
+		if (*(t++) == MFIE_TYPE_CHALLENGE) {
 			*chlen = *(t++);
 			*challenge = kmemdup(t, *chlen, GFP_ATOMIC);
 			if (!*challenge)
@@ -1567,7 +1567,7 @@ static int auth_rq_parse(struct sk_buff *skb, u8 *dest)
 {
 	struct ieee80211_authentication *a;
 
-	if (skb->len <  (sizeof(struct ieee80211_authentication)-sizeof(struct ieee80211_info_element))){
+	if (skb->len < (sizeof(struct ieee80211_authentication) - sizeof(struct ieee80211_info_element))) {
 		IEEE80211_DEBUG_MGMT("invalid len in auth request: %d\n",skb->len);
 		return -1;
 	}
@@ -1601,7 +1601,7 @@ static short probe_rq_parse(struct ieee80211_device *ieee, struct sk_buff *skb,
 	tag = skb->data + sizeof (struct ieee80211_hdr_3addr  );
 
 	while (tag+1 < skbend){
-		if (*tag == 0){
+		if (*tag == 0) {
 			ssid = tag+2;
 			ssidlen = *(tag+1);
 			break;
@@ -1642,7 +1642,7 @@ static inline u16 assoc_parse(struct ieee80211_device *ieee, struct sk_buff *skb
 	struct ieee80211_assoc_response_frame *response_head;
 	u16 status_code;
 
-	if (skb->len <  sizeof(struct ieee80211_assoc_response_frame)){
+	if (skb->len < sizeof(struct ieee80211_assoc_response_frame)) {
 		IEEE80211_DEBUG_MGMT("invalid len in auth resp: %d\n", skb->len);
 		return 0xcafe;
 	}
@@ -1672,7 +1672,7 @@ ieee80211_rx_probe_rq(struct ieee80211_device *ieee, struct sk_buff *skb)
 	//IEEE80211DMESG("Rx probe");
 	ieee->softmac_stats.rx_probe_rq++;
 	//DMESG("Dest is "MACSTR, MAC2STR(dest));
-	if (probe_rq_parse(ieee, skb, dest)){
+	if (probe_rq_parse(ieee, skb, dest)) {
 		//IEEE80211DMESG("Was for me!");
 		ieee->softmac_stats.tx_probe_rs++;
 		ieee80211_resp_to_probe(ieee, dest);
@@ -1703,7 +1703,7 @@ ieee80211_rx_assoc_rq(struct ieee80211_device *ieee, struct sk_buff *skb)
 	//unsigned long flags;
 
 	ieee->softmac_stats.rx_ass_rq++;
-	if (assoc_rq_parse(skb,dest) != -1){
+	if (assoc_rq_parse(skb, dest) != -1) {
 		ieee80211_resp_to_assoc_rq(ieee, dest);
 	}
 
@@ -1755,13 +1755,13 @@ static short ieee80211_sta_ps_sleep(struct ieee80211_device *ieee, u32 *time_h,
 		(ieee->mgmt_queue_tail != ieee->mgmt_queue_head))
 		return 0;
 
-	if(time_l){
+	if (time_l) {
 		*time_l = ieee->current_network.last_dtim_sta_time[0]
 			+ (ieee->current_network.beacon_interval
 			* ieee->current_network.dtim_period) * 1000;
 	}
 
-	if(time_h){
+	if (time_h) {
 		*time_h = ieee->current_network.last_dtim_sta_time[1];
 		if(time_l && *time_l < ieee->current_network.last_dtim_sta_time[0])
 			*time_h += 1;
@@ -1782,7 +1782,7 @@ static inline void ieee80211_sta_ps(struct ieee80211_device *ieee)
 
 	spin_lock_irqsave(&ieee->lock, flags);
 
-	if((ieee->ps == IEEE80211_PS_DISABLED ||
+	if ((ieee->ps == IEEE80211_PS_DISABLED ||
 		ieee->iw_mode != IW_MODE_INFRA ||
 		ieee->state != IEEE80211_LINKED)){
 
@@ -1841,8 +1841,8 @@ out:
 
 void ieee80211_sta_wakeup(struct ieee80211_device *ieee, short nl)
 {
-	if(ieee->sta_sleep == 0){
-		if(nl){
+	if (ieee->sta_sleep == 0) {
+		if (nl) {
 			printk("Warning: driver is probably failing to report TX ps error\n");
 			ieee->ps_request_tx_ack(ieee->dev);
 			ieee80211_sta_ps_send_null_frame(ieee, 0);
@@ -1856,7 +1856,7 @@ void ieee80211_sta_wakeup(struct ieee80211_device *ieee, short nl)
 
 	ieee->sta_sleep = 0;
 
-	if(nl){
+	if (nl) {
 		ieee->ps_request_tx_ack(ieee->dev);
 		ieee80211_sta_ps_send_null_frame(ieee, 0);
 	}
@@ -1870,7 +1870,7 @@ void ieee80211_ps_tx_ack(struct ieee80211_device *ieee, short success)
 
 	if(ieee->sta_sleep == 2){
 		/* Null frame with PS bit set */
-		if(success){
+		if (success) {
 			ieee->sta_sleep = 1;
 			ieee->enter_sleep_state(ieee->dev,ieee->ps_th,ieee->ps_tl);
 		}
@@ -1881,7 +1881,7 @@ void ieee80211_ps_tx_ack(struct ieee80211_device *ieee, short success)
 	/* 21112005 - tx again null without PS bit if lost */
 	else {
 
-		if((ieee->sta_sleep == 0) && !success){
+		if ((ieee->sta_sleep == 0) && !success) {
 			spin_lock_irqsave(&ieee->mgmt_tx_lock, flags2);
 			ieee80211_sta_ps_send_null_frame(ieee, 0);
 			spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags2);
@@ -1920,6 +1920,66 @@ static void ieee80211_process_action(struct ieee80211_device *ieee,
 	return;
 
 }
+
+static void ieee80211_check_auth_response(struct ieee80211_device *ieee,
+					  struct sk_buff *skb)
+{
+	/* default support N mode, disable halfNmode */
+	bool bSupportNmode = true, bHalfSupportNmode = false;
+	u16 errcode;
+	u8 *challenge;
+	int chlen = 0;
+	u32 iotAction;
+
+	errcode = auth_parse(skb, &challenge, &chlen);
+	if (!errcode) {
+		if (ieee->open_wep || !challenge) {
+			ieee->state = IEEE80211_ASSOCIATING_AUTHENTICATED;
+			ieee->softmac_stats.rx_auth_rs_ok++;
+			iotAction = ieee->pHTInfo->IOTAction;
+			if (!(iotAction & HT_IOT_ACT_PURE_N_MODE)) {
+				if (!ieee->GetNmodeSupportBySecCfg(ieee->dev)) {
+					/* WEP or TKIP encryption */
+					if (IsHTHalfNmodeAPs(ieee)) {
+						bSupportNmode = true;
+						bHalfSupportNmode = true;
+					} else {
+						bSupportNmode = false;
+						bHalfSupportNmode = false;
+					}
+					netdev_dbg(ieee->dev, "SEC(%d, %d)\n",
+							bSupportNmode,
+							bHalfSupportNmode);
+				}
+			}
+			/* Dummy wirless mode setting- avoid encryption issue */
+			if (bSupportNmode) {
+				/* N mode setting */
+				ieee->SetWirelessMode(ieee->dev,
+						ieee->current_network.mode);
+			} else {
+				/* b/g mode setting - TODO */
+				ieee->SetWirelessMode(ieee->dev, IEEE_G);
+			}
+
+			if (ieee->current_network.mode == IEEE_N_24G &&
+					bHalfSupportNmode == true) {
+				netdev_dbg(ieee->dev, "enter half N mode\n");
+				ieee->bHalfWirelessN24GMode = true;
+			} else
+				ieee->bHalfWirelessN24GMode = false;
+
+			ieee80211_associate_step2(ieee);
+		} else {
+			ieee80211_auth_challenge(ieee, challenge, chlen);
+		}
+	} else {
+		ieee->softmac_stats.rx_auth_rs_err++;
+		IEEE80211_DEBUG_MGMT("Auth response status code 0x%x", errcode);
+		ieee80211_associate_abort(ieee);
+	}
+}
+
 inline int
 ieee80211_rx_frame_softmac(struct ieee80211_device *ieee, struct sk_buff *skb,
 			struct ieee80211_rx_stats *rx_stats, u16 type,
@@ -1927,12 +1987,9 @@ ieee80211_rx_frame_softmac(struct ieee80211_device *ieee, struct sk_buff *skb,
 {
 	struct ieee80211_hdr_3addr *header = (struct ieee80211_hdr_3addr *) skb->data;
 	u16 errcode;
-	u8 *challenge;
-	int chlen=0;
 	int aid;
 	struct ieee80211_assoc_response_frame *assoc_resp;
 //	struct ieee80211_info_element *info_element;
-	bool bSupportNmode = true, bHalfSupportNmode = false; //default support N mode, disable halfNmode
 
 	if(!ieee->proto_started)
 		return 0;
@@ -1967,7 +2024,7 @@ ieee80211_rx_frame_softmac(struct ieee80211_device *ieee, struct sk_buff *skb,
 				ieee->softmac_stats.rx_ass_ok++;
 				/* station support qos */
 				/* Let the register setting defaultly with Legacy station */
-				if(ieee->qos_support) {
+				if (ieee->qos_support) {
 					assoc_resp = (struct ieee80211_assoc_response_frame *)skb->data;
 					memset(network, 0, sizeof(*network));
 					if (ieee80211_parse_info_param(ieee,assoc_resp->info_element,\
@@ -2013,68 +2070,16 @@ ieee80211_rx_frame_softmac(struct ieee80211_device *ieee, struct sk_buff *skb,
 
 	case IEEE80211_STYPE_AUTH:
 
-		if (ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE){
-			if (ieee->state == IEEE80211_ASSOCIATING_AUTHENTICATING &&
-			ieee->iw_mode == IW_MODE_INFRA){
+		if (ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE) {
+			if (ieee->state == IEEE80211_ASSOCIATING_AUTHENTICATING
+				&& ieee->iw_mode == IW_MODE_INFRA) {
 
-					IEEE80211_DEBUG_MGMT("Received authentication response");
-
-					errcode = auth_parse(skb, &challenge, &chlen);
-					if (!errcode) {
-						if(ieee->open_wep || !challenge){
-							ieee->state = IEEE80211_ASSOCIATING_AUTHENTICATED;
-							ieee->softmac_stats.rx_auth_rs_ok++;
-							if(!(ieee->pHTInfo->IOTAction&HT_IOT_ACT_PURE_N_MODE))
-							{
-								if (!ieee->GetNmodeSupportBySecCfg(ieee->dev))
-								{
-											// WEP or TKIP encryption
-									if(IsHTHalfNmodeAPs(ieee))
-									{
-										bSupportNmode = true;
-										bHalfSupportNmode = true;
-									}
-									else
-									{
-										bSupportNmode = false;
-										bHalfSupportNmode = false;
-									}
-								printk("==========>to link with AP using SEC(%d, %d)", bSupportNmode, bHalfSupportNmode);
-								}
-							}
-							/* Dummy wirless mode setting to avoid encryption issue */
-							if(bSupportNmode) {
-								//N mode setting
-								ieee->SetWirelessMode(ieee->dev, \
-										ieee->current_network.mode);
-							}else{
-								//b/g mode setting
-								/*TODO*/
-								ieee->SetWirelessMode(ieee->dev, IEEE_G);
-							}
-
-							if (ieee->current_network.mode == IEEE_N_24G && bHalfSupportNmode == true)
-							{
-								printk("===============>entern half N mode\n");
-								ieee->bHalfWirelessN24GMode = true;
-							}
-							else
-								ieee->bHalfWirelessN24GMode = false;
-
-							ieee80211_associate_step2(ieee);
-						}else{
-							ieee80211_auth_challenge(ieee, challenge, chlen);
-						}
-					}else{
-						ieee->softmac_stats.rx_auth_rs_err++;
-						IEEE80211_DEBUG_MGMT("Authentication response status code 0x%x",errcode);
-						ieee80211_associate_abort(ieee);
-					}
-
-				}else if (ieee->iw_mode == IW_MODE_MASTER){
-					ieee80211_rx_auth_rq(ieee, skb);
-				}
+				IEEE80211_DEBUG_MGMT("Received auth response");
+				ieee80211_check_auth_response(ieee, skb);
+			} else if (ieee->iw_mode == IW_MODE_MASTER) {
+				ieee80211_rx_auth_rq(ieee, skb);
 			}
+		}
 		break;
 
 	case IEEE80211_STYPE_PROBE_REQ:
@@ -2110,27 +2115,26 @@ ieee80211_rx_frame_softmac(struct ieee80211_device *ieee, struct sk_buff *skb,
 		break;
 	default:
 		return -1;
-		break;
 	}
 
 	//dev_kfree_skb_any(skb);
 	return 0;
 }
 
-/* following are for a simpler TX queue management.
- * Instead of using netif_[stop/wake]_queue the driver
- * will uses these two function (plus a reset one), that
- * will internally uses the kernel netif_* and takes
- * care of the ieee802.11 fragmentation.
- * So the driver receives a fragment per time and might
- * call the stop function when it want without take care
- * to have enought room to TX an entire packet.
- * This might be useful if each fragment need it's own
- * descriptor, thus just keep a total free memory > than
- * the max fragmentation treshold is not enought.. If the
- * ieee802.11 stack passed a TXB struct then you needed
+/* The following are for a simpler TX queue management.
+ * Instead of using netif_[stop/wake]_queue, the driver
+ * will use these two functions (plus a reset one) that
+ * will internally call the kernel netif_* and take care
+ * of the ieee802.11 fragmentation.
+ * So, the driver receives a fragment at a time and might
+ * call the stop function when it wants, without taking
+ * care to have enough room to TX an entire packet.
+ * This might be useful if each fragment needs its own
+ * descriptor. Thus, just keeping a total free memory > than
+ * the max fragmentation threshold is not enough. If the
+ * ieee802.11 stack passed a TXB struct, then you would need
  * to keep N free descriptors where
- * N = MAX_PACKET_SIZE / MIN_FRAG_TRESHOLD
+ * N = MAX_PACKET_SIZE / MIN_FRAG_THRESHOLD.
  * In this way you need just one and the 802.11 stack
  * will take care of buffering fragments and pass them to
  * to the driver later, when it wakes the queue.
@@ -2152,7 +2156,7 @@ void ieee80211_softmac_xmit(struct ieee80211_txb *txb, struct ieee80211_device *
 	ieee->stats.tx_bytes += txb->payload_size;
 	ieee->stats.tx_packets++;
 	tcb_desc = (cb_desc *)(txb->fragments[0]->cb + MAX_DEV_ADDR_SIZE);
-	if(tcb_desc->bMulticast) {
+	if (tcb_desc->bMulticast) {
 		ieee->stats.multicast++;
 	}
 	/* if xmit available, just xmit it immediately, else just insert it to the wait queue */
@@ -2224,7 +2228,7 @@ void ieee80211_reset_queue(struct ieee80211_device *ieee)
 
 	spin_lock_irqsave(&ieee->lock, flags);
 	init_mgmt_queue(ieee);
-	if (ieee->tx_pending.txb){
+	if (ieee->tx_pending.txb) {
 		ieee80211_txb_free(ieee->tx_pending.txb);
 		ieee->tx_pending.txb = NULL;
 	}
@@ -2246,7 +2250,7 @@ void ieee80211_wake_queue(struct ieee80211_device *ieee)
 
 	ieee->queue_stop = 0;
 
-	if(ieee->softmac_features & IEEE_SOFTMAC_SINGLE_QUEUE){
+	if (ieee->softmac_features & IEEE_SOFTMAC_SINGLE_QUEUE) {
 		while (!ieee->queue_stop && (skb = dequeue_mgmt(ieee))){
 
 			header = (struct ieee80211_hdr_3addr  *) skb->data;
@@ -2265,7 +2269,7 @@ void ieee80211_wake_queue(struct ieee80211_device *ieee)
 	if (!ieee->queue_stop && ieee->tx_pending.txb)
 		ieee80211_resume_tx(ieee);
 
-	if (!ieee->queue_stop && netif_queue_stopped(ieee->dev)){
+	if (!ieee->queue_stop && netif_queue_stopped(ieee->dev)) {
 		ieee->softmac_stats.swtxawake++;
 		netif_wake_queue(ieee->dev);
 	}
@@ -2280,7 +2284,7 @@ void ieee80211_stop_queue(struct ieee80211_device *ieee)
 	//unsigned long flags;
 	//spin_lock_irqsave(&ieee->lock,flags);
 
-	if (! netif_queue_stopped(ieee->dev)){
+	if (!netif_queue_stopped(ieee->dev)) {
 		netif_stop_queue(ieee->dev);
 		ieee->softmac_stats.swtxstop++;
 	}
@@ -2301,7 +2305,7 @@ void ieee80211_start_master_bss(struct ieee80211_device *ieee)
 {
 	ieee->assoc_id = 1;
 
-	if (ieee->current_network.ssid_len == 0){
+	if (ieee->current_network.ssid_len == 0) {
 		strncpy(ieee->current_network.ssid,
 			IEEE80211_DEFAULT_TX_ESSID,
 			IW_ESSID_MAX_SIZE);
@@ -2325,7 +2329,7 @@ void ieee80211_start_master_bss(struct ieee80211_device *ieee)
 
 static void ieee80211_start_monitor_mode(struct ieee80211_device *ieee)
 {
-	if(ieee->raw_tx){
+	if (ieee->raw_tx) {
 
 		if (ieee->data_hard_resume)
 			ieee->data_hard_resume(ieee->dev);
@@ -2345,13 +2349,13 @@ static void ieee80211_start_ibss_wq(struct work_struct *work)
 	 * (abort) this wq (when syncro scanning) before sleeping
 	 * on the semaphore
 	 */
-	if(!ieee->proto_started){
+	if (!ieee->proto_started) {
 		printk("==========oh driver down return\n");
 		return;
 	}
 	down(&ieee->wx_sem);
 
-	if (ieee->current_network.ssid_len == 0){
+	if (ieee->current_network.ssid_len == 0) {
 		strcpy(ieee->current_network.ssid, IEEE80211_DEFAULT_TX_ESSID);
 		ieee->current_network.ssid_len = strlen(IEEE80211_DEFAULT_TX_ESSID);
 		ieee->ssid_set = 1;
@@ -2382,7 +2386,7 @@ static void ieee80211_start_ibss_wq(struct work_struct *work)
 		ieee80211_start_scan_syncro(ieee);
 
 	/* the network definitively is not here.. create a new cell */
-	if (ieee->state == IEEE80211_NOLINK){
+	if (ieee->state == IEEE80211_NOLINK) {
 		printk("creating new IBSS cell\n");
 		if(!ieee->wap_set)
 			ieee80211_randomize_cell(ieee);
@@ -2456,9 +2460,9 @@ void ieee80211_start_bss(struct ieee80211_device *ieee)
 	// Ref: 802.11d 11.1.3.3
 	// STA shall not start a BSS unless properly formed Beacon frame including a Country IE.
 	//
-	if(IS_DOT11D_ENABLE(ieee) && !IS_COUNTRY_IE_VALID(ieee))
+	if (IS_DOT11D_ENABLE(ieee) && !IS_COUNTRY_IE_VALID(ieee))
 	{
-		if(! ieee->bGlobalDomain)
+		if (! ieee->bGlobalDomain)
 		{
 			return;
 		}
@@ -2479,7 +2483,7 @@ void ieee80211_start_bss(struct ieee80211_device *ieee)
 	 */
 	spin_lock_irqsave(&ieee->lock, flags);
 
-	if (ieee->state == IEEE80211_NOLINK){
+	if (ieee->state == IEEE80211_NOLINK) {
 		ieee->actscanning = true;
 		ieee80211_start_scan(ieee);
 	}
@@ -2633,7 +2637,7 @@ void ieee80211_start_protocol(struct ieee80211_device *ieee)
 
 	ieee->proto_started = 1;
 
-	if (ieee->current_network.channel == 0){
+	if (ieee->current_network.channel == 0) {
 		do{
 			ch++;
 			if (ch > MAX_CHANNEL_NUMBER)
@@ -2719,16 +2723,14 @@ void ieee80211_softmac_init(struct ieee80211_device *ieee)
 	ieee->sta_edca_param[2] = 0x005E4342;
 	ieee->sta_edca_param[3] = 0x002F3262;
 	ieee->aggregation = true;
-	ieee->enable_rx_imm_BA = 1;
+	ieee->enable_rx_imm_BA = true;
 	ieee->tx_pending.txb = NULL;
 
-	init_timer(&ieee->associate_timer);
-	ieee->associate_timer.data = (unsigned long)ieee;
-	ieee->associate_timer.function = ieee80211_associate_abort_cb;
+	setup_timer(&ieee->associate_timer, ieee80211_associate_abort_cb,
+		    (unsigned long)ieee);
 
-	init_timer(&ieee->beacon_timer);
-	ieee->beacon_timer.data = (unsigned long) ieee;
-	ieee->beacon_timer.function = ieee80211_send_beacon_cb;
+	setup_timer(&ieee->beacon_timer, ieee80211_send_beacon_cb,
+		    (unsigned long)ieee);
 
 	ieee->wq = create_workqueue(DRV_NAME);
 
@@ -3027,12 +3029,11 @@ static int ieee80211_wpa_set_encryption(struct ieee80211_device *ieee,
 
 		ieee80211_crypt_delayed_deinit(ieee, crypt);
 
-		new_crypt = kmalloc(sizeof(*new_crypt), GFP_KERNEL);
+		new_crypt = kzalloc(sizeof(*new_crypt), GFP_KERNEL);
 		if (new_crypt == NULL) {
 			ret = -ENOMEM;
 			goto done;
 		}
-		memset(new_crypt, 0, sizeof(struct ieee80211_crypt_data));
 		new_crypt->ops = ops;
 		if (new_crypt->ops && try_module_get(new_crypt->ops->owner))
 			new_crypt->priv =
@@ -3140,7 +3141,7 @@ SendDisassociation(
 		struct ieee80211_network *beacon = &ieee->current_network;
 		struct sk_buff *skb;
 		skb = ieee80211_disassociate_skb(beacon,ieee,asRsn);
-		if (skb){
+		if (skb) {
 				softmac_mgmt_xmit(skb, ieee);
 				//dev_kfree_skb_any(skb);//edit by thomas
 		}
@@ -3155,7 +3156,7 @@ int ieee80211_wpa_supplicant_ioctl(struct ieee80211_device *ieee, struct iw_poin
 	down(&ieee->wx_sem);
 	//IEEE_DEBUG_INFO("wpa_supplicant: len=%d\n", p->length);
 
-	if (p->length < sizeof(struct ieee_param) || !p->pointer){
+	if (p->length < sizeof(struct ieee_param) || !p->pointer) {
 		ret = -EINVAL;
 		goto out;
 	}
@@ -3210,7 +3211,7 @@ void notify_wx_assoc_event(struct ieee80211_device *ieee)
 	if (ieee->state == IEEE80211_LINKED)
 		memcpy(wrqu.ap_addr.sa_data, ieee->current_network.bssid, ETH_ALEN);
 	else
-		memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN);
+		eth_zero_addr(wrqu.ap_addr.sa_data);
 	wireless_send_event(ieee->dev, SIOCGIWAP, &wrqu, NULL);
 }
 EXPORT_SYMBOL(notify_wx_assoc_event);
diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac_wx.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac_wx.c
index 644368d..714fbca 100644
--- a/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac_wx.c
+++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac_wx.c
@@ -36,7 +36,7 @@ int ieee80211_wx_set_freq(struct ieee80211_device *ieee, struct iw_request_info
 
 	down(&ieee->wx_sem);
 
-	if(ieee->iw_mode == IW_MODE_INFRA){
+	if (ieee->iw_mode == IW_MODE_INFRA) {
 		ret = -EOPNOTSUPP;
 		goto out;
 	}
@@ -121,7 +121,7 @@ int ieee80211_wx_get_wap(struct ieee80211_device *ieee,
 		ieee->state != IEEE80211_LINKED_SCANNING &&
 		ieee->wap_set == 0)
 
-		memset(wrqu->ap_addr.sa_data, 0, ETH_ALEN);
+		eth_zero_addr(wrqu->ap_addr.sa_data);
 	else
 		memcpy(wrqu->ap_addr.sa_data,
 		       ieee->current_network.bssid, ETH_ALEN);
@@ -148,12 +148,12 @@ int ieee80211_wx_set_wap(struct ieee80211_device *ieee,
 
 	down(&ieee->wx_sem);
 	/* use ifconfig hw ether */
-	if (ieee->iw_mode == IW_MODE_MASTER){
+	if (ieee->iw_mode == IW_MODE_MASTER) {
 		ret = -1;
 		goto out;
 	}
 
-	if (temp->sa_family != ARPHRD_ETHER){
+	if (temp->sa_family != ARPHRD_ETHER) {
 		ret = -EINVAL;
 		goto out;
 	}
@@ -345,7 +345,7 @@ void ieee80211_wx_sync_scan_wq(struct work_struct *work)
 	ieee->state = IEEE80211_LINKED;
 	ieee->link_change(ieee->dev);
 	// To prevent the immediately calling watch_dog after scan.
-	if(ieee->LinkDetectInfo.NumRecvBcnInPeriod==0||ieee->LinkDetectInfo.NumRecvDataInPeriod==0 )
+	if (ieee->LinkDetectInfo.NumRecvBcnInPeriod==0||ieee->LinkDetectInfo.NumRecvDataInPeriod==0 )
 	{
 		ieee->LinkDetectInfo.NumRecvBcnInPeriod = 1;
 		ieee->LinkDetectInfo.NumRecvDataInPeriod= 1;
@@ -369,7 +369,7 @@ int ieee80211_wx_set_scan(struct ieee80211_device *ieee, struct iw_request_info
 
 	down(&ieee->wx_sem);
 
-	if (ieee->iw_mode == IW_MODE_MONITOR || !(ieee->proto_started)){
+	if (ieee->iw_mode == IW_MODE_MONITOR || !(ieee->proto_started)) {
 		ret = -1;
 		goto out;
 	}
@@ -400,12 +400,12 @@ int ieee80211_wx_set_essid(struct ieee80211_device *ieee,
 
 	proto_started = ieee->proto_started;
 
-	if (wrqu->essid.length > IW_ESSID_MAX_SIZE){
+	if (wrqu->essid.length > IW_ESSID_MAX_SIZE) {
 		ret= -E2BIG;
 		goto out;
 	}
 
-	if (ieee->iw_mode == IW_MODE_MONITOR){
+	if (ieee->iw_mode == IW_MODE_MONITOR) {
 		ret= -1;
 		goto out;
 	}
@@ -469,9 +469,9 @@ EXPORT_SYMBOL(ieee80211_wx_get_mode);
 	printk(KERN_INFO"raw TX is %s\n",
 	      ieee->raw_tx ? "enabled" : "disabled");
 
-	if(ieee->iw_mode == IW_MODE_MONITOR)
+	if (ieee->iw_mode == IW_MODE_MONITOR)
 	{
-		if(prev == 0 && ieee->raw_tx){
+		if (prev == 0 && ieee->raw_tx) {
 			if (ieee->data_hard_resume)
 				ieee->data_hard_resume(ieee->dev);
 
@@ -522,7 +522,7 @@ int ieee80211_wx_set_power(struct ieee80211_device *ieee,
 	int ret = 0;
 	down(&ieee->wx_sem);
 
-	if (wrqu->power.disabled){
+	if (wrqu->power.disabled) {
 		ieee->ps = IEEE80211_PS_DISABLED;
 		goto exit;
 	}
@@ -572,7 +572,7 @@ int ieee80211_wx_get_power(struct ieee80211_device *ieee,
 {
 	down(&ieee->wx_sem);
 
-	if(ieee->ps == IEEE80211_PS_DISABLED){
+	if (ieee->ps == IEEE80211_PS_DISABLED) {
 		wrqu->power.disabled = 1;
 		goto exit;
 	}
diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_tx.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_tx.c
index fca73c7..9f68c65 100644
--- a/drivers/staging/rtl8192u/ieee80211/ieee80211_tx.c
+++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_tx.c
@@ -32,7 +32,6 @@
 ******************************************************************************/
 
 #include <linux/compiler.h>
-//#include <linux/config.h>
 #include <linux/errno.h>
 #include <linux/if_arp.h>
 #include <linux/in6.h>
@@ -554,16 +553,16 @@ static void ieee80211_txrate_selectmode(struct ieee80211_device *ieee,
 #ifdef TO_DO_LIST
 	if(!IsDataFrame(pFrame))
 	{
-		pTcb->bTxDisableRateFallBack = TRUE;
-		pTcb->bTxUseDriverAssingedRate = TRUE;
+		pTcb->bTxDisableRateFallBack = true;
+		pTcb->bTxUseDriverAssingedRate = true;
 		pTcb->RATRIndex = 7;
 		return;
 	}
 
 	if(pMgntInfo->ForcedDataRate!= 0)
 	{
-		pTcb->bTxDisableRateFallBack = TRUE;
-		pTcb->bTxUseDriverAssingedRate = TRUE;
+		pTcb->bTxDisableRateFallBack = true;
+		pTcb->bTxUseDriverAssingedRate = true;
 		return;
 	}
 #endif
diff --git a/drivers/staging/rtl8192u/ieee80211/rtl819x_BAProc.c b/drivers/staging/rtl8192u/ieee80211/rtl819x_BAProc.c
index 1b4623c..618d2cb 100644
--- a/drivers/staging/rtl8192u/ieee80211/rtl819x_BAProc.c
+++ b/drivers/staging/rtl8192u/ieee80211/rtl819x_BAProc.c
@@ -46,14 +46,14 @@ static u8 TxTsDeleteBA(struct ieee80211_device *ieee, PTX_TS_RECORD pTxTs)
 	u8			bSendDELBA = false;
 
 	// Delete pending BA
-	if(pPendingBa->bValid)
+	if (pPendingBa->bValid)
 	{
 		DeActivateBAEntry(ieee, pPendingBa);
 		bSendDELBA = true;
 	}
 
 	// Delete admitted BA
-	if(pAdmittedBa->bValid)
+	if (pAdmittedBa->bValid)
 	{
 		DeActivateBAEntry(ieee, pAdmittedBa);
 		bSendDELBA = true;
@@ -74,7 +74,7 @@ static u8 RxTsDeleteBA(struct ieee80211_device *ieee, PRX_TS_RECORD pRxTs)
 	PBA_RECORD		pBa = &pRxTs->RxAdmittedBARecord;
 	u8			bSendDELBA = false;
 
-	if(pBa->bValid)
+	if (pBa->bValid)
 	{
 		DeActivateBAEntry(ieee, pBa);
 		bSendDELBA = true;
@@ -363,7 +363,7 @@ int ieee80211_rx_ADDBAReq(struct ieee80211_device *ieee, struct sk_buff *skb)
 
 	printk("====================>rx ADDBAREQ from :%pM\n", dst);
 //some other capability is not ready now.
-	if(	(ieee->current_network.qos_data.active == 0) ||
+	if ((ieee->current_network.qos_data.active == 0) ||
 		(ieee->pHTInfo->bCurrentHTSupport == false)) //||
 	//	(ieee->pStaQos->bEnableRxImmBA == false)	)
 	{
@@ -373,7 +373,7 @@ int ieee80211_rx_ADDBAReq(struct ieee80211_device *ieee, struct sk_buff *skb)
 	}
 	// Search for related traffic stream.
 	// If there is no matched TS, reject the ADDBA request.
-	if(	!GetTs(
+	if (!GetTs(
 			ieee,
 			(PTS_COMMON_INFO *)(&pTS),
 			dst,
@@ -390,7 +390,7 @@ int ieee80211_rx_ADDBAReq(struct ieee80211_device *ieee, struct sk_buff *skb)
 	// We can do much more check here, including BufferSize, AMSDU_Support, Policy, StartSeqCtrl...
 	// I want to check StartSeqCtrl to make sure when we start aggregation!!!
 	//
-	if(pBaParamSet->field.BAPolicy == BA_POLICY_DELAYED)
+	if (pBaParamSet->field.BAPolicy == BA_POLICY_DELAYED)
 	{
 		rc = ADDBA_STATUS_INVALID_PARAM;
 		IEEE80211_DEBUG(IEEE80211_DL_ERR, "BA Policy is not correct in %s()\n", __func__);
@@ -522,7 +522,7 @@ int ieee80211_rx_ADDBARsp(struct ieee80211_device *ieee, struct sk_buff *skb)
 		// We can compare the value of BA parameter set that Peer returned and Self sent.
 		// If it is OK, then admitted. Or we can send DELBA to cancel BA mechanism.
 		//
-		if(pBaParamSet->field.BAPolicy == BA_POLICY_DELAYED)
+		if (pBaParamSet->field.BAPolicy == BA_POLICY_DELAYED)
 		{
 			// Since this is a kind of ADDBA failed, we delay next ADDBA process.
 			pTS->bAddBaReqDelayed = true;
@@ -582,7 +582,7 @@ int ieee80211_rx_DELBA(struct ieee80211_device *ieee, struct sk_buff *skb)
 		return -1;
 	}
 
-	if(ieee->current_network.qos_data.active == 0 ||
+	if (ieee->current_network.qos_data.active == 0 ||
 		ieee->pHTInfo->bCurrentHTSupport == false )
 	{
 		IEEE80211_DEBUG(IEEE80211_DL_ERR, "received DELBA while QOS or HT is not supported(%d, %d)\n",ieee->current_network.qos_data.active, ieee->pHTInfo->bCurrentHTSupport);
@@ -600,7 +600,7 @@ int ieee80211_rx_DELBA(struct ieee80211_device *ieee, struct sk_buff *skb)
 	{
 		PRX_TS_RECORD	pRxTs;
 
-		if( !GetTs(
+		if (!GetTs(
 				ieee,
 				(PTS_COMMON_INFO *)&pRxTs,
 				dst,
@@ -618,7 +618,7 @@ int ieee80211_rx_DELBA(struct ieee80211_device *ieee, struct sk_buff *skb)
 	{
 		PTX_TS_RECORD	pTxTs;
 
-		if(!GetTs(
+		if (!GetTs(
 			ieee,
 			(PTS_COMMON_INFO *)&pTxTs,
 			dst,
diff --git a/drivers/staging/rtl8192u/ieee80211/rtl819x_HTProc.c b/drivers/staging/rtl8192u/ieee80211/rtl819x_HTProc.c
index e60d926..c2588f8 100644
--- a/drivers/staging/rtl8192u/ieee80211/rtl819x_HTProc.c
+++ b/drivers/staging/rtl8192u/ieee80211/rtl819x_HTProc.c
@@ -471,12 +471,10 @@ static bool HTIOTActIsDisableMCS15(struct ieee80211_device *ieee)
 static bool HTIOTActIsDisableMCSTwoSpatialStream(struct ieee80211_device *ieee,
 						 u8 *PeerMacAddr)
 {
-	bool retValue = false;
-
 #ifdef TODO
 	// Apply for 819u only
 #endif
-	return retValue;
+	return false;
 }
 
 /********************************************************************************************************************
@@ -488,11 +486,8 @@ static bool HTIOTActIsDisableMCSTwoSpatialStream(struct ieee80211_device *ieee,
   * *****************************************************************************************************************/
 static u8 HTIOTActIsDisableEDCATurbo(struct ieee80211_device *ieee,
 				     u8 *PeerMacAddr)
-{
-	u8	retValue = false;	// default enable EDCA Turbo mode.
-	// Set specific EDCA parameter for different AP in DM handler.
-
-	return retValue;
+{	/* default enable EDCA Turbo mode. */
+	return false;
 }
 
 /********************************************************************************************************************
@@ -508,7 +503,7 @@ static u8 HTIOTActIsMgntUseCCK6M(struct ieee80211_network *network)
 	// 2008/01/25 MH Judeg if we need to use OFDM to sned MGNT frame for broadcom AP.
 	// 2008/01/28 MH We must prevent that we select null bssid to link.
 
-	if(network->broadcom_cap_exist)
+	if (network->broadcom_cap_exist)
 	{
 		retValue = 1;
 	}
@@ -625,7 +620,7 @@ void HTConstructCapabilityElement(struct ieee80211_device *ieee, u8 *posHTCap, u
 
 	// 2008.06.12
 	// For RTL819X, if pairwisekey = wep/tkip, ap is ralink, we support only MCS0~7.
-	if(ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev))
+	if (ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev))
 	{
 		int i;
 		for(i = 1; i< 16; i++)
@@ -752,7 +747,7 @@ void HTConstructRT2RTAggElement(struct ieee80211_device *ieee, u8 *posRT2RTAgg,
 	*posRT2RTAgg++ = 0x01;
 	*posRT2RTAgg = 0x10;//*posRT2RTAgg = 0x02;
 
-	if(ieee->bSupportRemoteWakeUp) {
+	if (ieee->bSupportRemoteWakeUp) {
 		*posRT2RTAgg |= 0x08;//RT_HT_CAP_USE_WOW;
 	}
 
@@ -879,17 +874,17 @@ u8 HTGetHighestMCSRate(struct ieee80211_device *ieee, u8 *pMCSRateSet, u8 *pMCSF
 
 	for(i = 0; i < 16; i++)
 	{
-		if(availableMcsRate[i] != 0)
+		if (availableMcsRate[i] != 0)
 		{
 			bitMap = availableMcsRate[i];
 			for(j = 0; j < 8; j++)
 			{
-				if((bitMap%2) != 0)
+				if ((bitMap%2) != 0)
 				{
 					if(HTMcsToDataRate(ieee, (8*i+j)) > HTMcsToDataRate(ieee, mcsRate))
 						mcsRate = (8*i+j);
 				}
-				bitMap = bitMap>>1;
+				bitMap >>= 1;
 			}
 		}
 	}
@@ -1067,7 +1062,7 @@ void HTOnAssocRsp(struct ieee80211_device *ieee)
 
 	// Lanhsin: mark for tmp to avoid deauth by ap from  s3
 	//if(memcmp(pMgntInfo->Bssid, NETGEAR834Bv2_BROADCOM, 3)==0)
-	if(0)
+	if (0)
 		{
 
 			pHTInfo->bCurrentAMPDUEnable = false;
@@ -1303,7 +1298,7 @@ void HTUpdateSelfAndPeerSetting(struct ieee80211_device *ieee,	struct ieee80211_
 //	PHT_CAPABILITY_ELE		pPeerHTCap = (PHT_CAPABILITY_ELE)pNetwork->bssht.bdHTCapBuf;
 	PHT_INFORMATION_ELE		pPeerHTInfo = (PHT_INFORMATION_ELE)pNetwork->bssht.bdHTInfoBuf;
 
-	if(pHTInfo->bCurrentHTSupport)
+	if (pHTInfo->bCurrentHTSupport)
 	{
 		//
 		// Config current operation mode.
@@ -1328,7 +1323,7 @@ EXPORT_SYMBOL(HTUpdateSelfAndPeerSetting);
 ********************************************************************************************************************/
 u8 HTCCheck(struct ieee80211_device *ieee, u8 *pFrame)
 {
-	if(ieee->pHTInfo->bCurrentHTSupport)
+	if (ieee->pHTInfo->bCurrentHTSupport)
 	{
 		if ((IsQoSDataFrame(pFrame) && Frame_Order(pFrame)) == 1) {
 			IEEE80211_DEBUG(IEEE80211_DL_HT, "HT CONTROL FILED EXIST!!\n");
@@ -1357,7 +1352,7 @@ void HTSetConnectBwMode(struct ieee80211_device *ieee, HT_CHANNEL_WIDTH	Bandwidt
 //		return;
 
 //	spin_lock_irqsave(&(ieee->bw_spinlock), flags);
-	if(pHTInfo->bSwBwInProgress) {
+	if (pHTInfo->bSwBwInProgress) {
 //		spin_unlock_irqrestore(&(ieee->bw_spinlock), flags);
 		return;
 	}
diff --git a/drivers/staging/rtl8192u/ieee80211/rtl819x_TS.h b/drivers/staging/rtl8192u/ieee80211/rtl819x_TS.h
index 7ed7243..873969c 100644
--- a/drivers/staging/rtl8192u/ieee80211/rtl819x_TS.h
+++ b/drivers/staging/rtl8192u/ieee80211/rtl819x_TS.h
@@ -1,14 +1,14 @@
 #ifndef _TSTYPE_H_
 #define _TSTYPE_H_
 #include "rtl819x_Qos.h"
-#define TS_SETUP_TIMEOUT	60  // In millisecond
+#define TS_SETUP_TIMEOUT	60  /*  In millisecond */
 #define TS_INACT_TIMEOUT	60
 #define TS_ADDBA_DELAY		60
 
 #define TOTAL_TS_NUM		16
 #define TCLAS_NUM		4
 
-// This define the Tx/Rx directions
+/*  This define the Tx/Rx directions */
 typedef enum _TR_SELECT {
 	TX_DIR = 0,
 	RX_DIR = 1,
@@ -28,9 +28,9 @@ typedef struct _TS_COMMON_INFO{
 typedef struct _TX_TS_RECORD{
 	TS_COMMON_INFO		TsCommonInfo;
 	u16				TxCurSeq;
-	BA_RECORD			TxPendingBARecord;	// For BA Originator
-	BA_RECORD			TxAdmittedBARecord;	// For BA Originator
-//	QOS_DL_RECORD		DLRecord;
+	BA_RECORD			TxPendingBARecord;	/*  For BA Originator */
+	BA_RECORD			TxAdmittedBARecord;	/*  For BA Originator */
+/* 	QOS_DL_RECORD		DLRecord; */
 	u8				bAddBaReqInProgress;
 	u8				bAddBaReqDelayed;
 	u8				bUsingBa;
@@ -44,11 +44,11 @@ typedef struct _RX_TS_RECORD {
 	u16				RxTimeoutIndicateSeq;
 	struct list_head		RxPendingPktList;
 	struct timer_list		RxPktPendingTimer;
-	BA_RECORD			RxAdmittedBARecord;	 // For BA Recipient
+	BA_RECORD			RxAdmittedBARecord;	 /*  For BA Recipient */
 	u16				RxLastSeqNum;
 	u8				RxLastFragNum;
 	u8				num;
-//	QOS_DL_RECORD		DLRecord;
+/* 	QOS_DL_RECORD		DLRecord; */
 } RX_TS_RECORD, *PRX_TS_RECORD;
 
 
diff --git a/drivers/staging/rtl8192u/ieee80211/rtl819x_TSProc.c b/drivers/staging/rtl8192u/ieee80211/rtl819x_TSProc.c
index acaa723..ea92fde 100644
--- a/drivers/staging/rtl8192u/ieee80211/rtl819x_TSProc.c
+++ b/drivers/staging/rtl8192u/ieee80211/rtl819x_TSProc.c
@@ -156,26 +156,16 @@ void TSInitialize(struct ieee80211_device *ieee)
 		pTxTS->num = count;
 		// The timers for the operation of Traffic Stream and Block Ack.
 		// DLS related timer will be add here in the future!!
-		init_timer(&pTxTS->TsCommonInfo.SetupTimer);
-		pTxTS->TsCommonInfo.SetupTimer.data = (unsigned long)pTxTS;
-		pTxTS->TsCommonInfo.SetupTimer.function = TsSetupTimeOut;
-
-		init_timer(&pTxTS->TsCommonInfo.InactTimer);
-		pTxTS->TsCommonInfo.InactTimer.data = (unsigned long)pTxTS;
-		pTxTS->TsCommonInfo.InactTimer.function = TsInactTimeout;
-
-		init_timer(&pTxTS->TsAddBaTimer);
-		pTxTS->TsAddBaTimer.data = (unsigned long)pTxTS;
-		pTxTS->TsAddBaTimer.function = TsAddBaProcess;
-
-		init_timer(&pTxTS->TxPendingBARecord.Timer);
-		pTxTS->TxPendingBARecord.Timer.data = (unsigned long)pTxTS;
-		pTxTS->TxPendingBARecord.Timer.function = BaSetupTimeOut;
-
-		init_timer(&pTxTS->TxAdmittedBARecord.Timer);
-		pTxTS->TxAdmittedBARecord.Timer.data = (unsigned long)pTxTS;
-		pTxTS->TxAdmittedBARecord.Timer.function = TxBaInactTimeout;
-
+		setup_timer(&pTxTS->TsCommonInfo.SetupTimer, TsSetupTimeOut,
+			    (unsigned long)pTxTS);
+		setup_timer(&pTxTS->TsCommonInfo.InactTimer, TsInactTimeout,
+			    (unsigned long)pTxTS);
+		setup_timer(&pTxTS->TsAddBaTimer, TsAddBaProcess,
+			    (unsigned long)pTxTS);
+		setup_timer(&pTxTS->TxPendingBARecord.Timer, BaSetupTimeOut,
+			    (unsigned long)pTxTS);
+		setup_timer(&pTxTS->TxAdmittedBARecord.Timer,
+			    TxBaInactTimeout, (unsigned long)pTxTS);
 		ResetTxTsEntry(pTxTS);
 		list_add_tail(&pTxTS->TsCommonInfo.List, &ieee->Tx_TS_Unused_List);
 		pTxTS++;
@@ -189,23 +179,14 @@ void TSInitialize(struct ieee80211_device *ieee)
 	{
 		pRxTS->num = count;
 		INIT_LIST_HEAD(&pRxTS->RxPendingPktList);
-
-		init_timer(&pRxTS->TsCommonInfo.SetupTimer);
-		pRxTS->TsCommonInfo.SetupTimer.data = (unsigned long)pRxTS;
-		pRxTS->TsCommonInfo.SetupTimer.function = TsSetupTimeOut;
-
-		init_timer(&pRxTS->TsCommonInfo.InactTimer);
-		pRxTS->TsCommonInfo.InactTimer.data = (unsigned long)pRxTS;
-		pRxTS->TsCommonInfo.InactTimer.function = TsInactTimeout;
-
-		init_timer(&pRxTS->RxAdmittedBARecord.Timer);
-		pRxTS->RxAdmittedBARecord.Timer.data = (unsigned long)pRxTS;
-		pRxTS->RxAdmittedBARecord.Timer.function = RxBaInactTimeout;
-
-		init_timer(&pRxTS->RxPktPendingTimer);
-		pRxTS->RxPktPendingTimer.data = (unsigned long)pRxTS;
-		pRxTS->RxPktPendingTimer.function = RxPktPendingTimeout;
-
+		setup_timer(&pRxTS->TsCommonInfo.SetupTimer, TsSetupTimeOut,
+			    (unsigned long)pRxTS);
+		setup_timer(&pRxTS->TsCommonInfo.InactTimer, TsInactTimeout,
+			    (unsigned long)pRxTS);
+		setup_timer(&pRxTS->RxAdmittedBARecord.Timer,
+			    RxBaInactTimeout, (unsigned long)pRxTS);
+		setup_timer(&pRxTS->RxPktPendingTimer, RxPktPendingTimeout,
+			    (unsigned long)pRxTS);
 		ResetRxTsEntry(pRxTS);
 		list_add_tail(&pRxTS->TsCommonInfo.List, &ieee->Rx_TS_Unused_List);
 		pRxTS++;
@@ -288,7 +269,7 @@ static PTS_COMMON_INFO SearchAdmitTRStream(struct ieee80211_device *ieee,
 	//for(dir = DIR_UP; dir <= DIR_BI_DIR; dir++)
 	for(dir = 0; dir <= DIR_BI_DIR; dir++)
 	{
-		if(search_dir[dir] ==false )
+		if (!search_dir[dir])
 			continue;
 		list_for_each_entry(pRet, psearch_list, List){
 	//		IEEE80211_DEBUG(IEEE80211_DL_TS, "ADD:%pM, TID:%d, dir:%d\n", pRet->Addr, pRet->TSpec.f.TSInfo.field.ucTSID, pRet->TSpec.f.TSInfo.field.ucDirection);
@@ -400,8 +381,7 @@ bool GetTs(
 	}
 	else
 	{
-		if(bAddNewTs == false)
-		{
+		if (!bAddNewTs) {
 			IEEE80211_DEBUG(IEEE80211_DL_TS, "add new TS failed(tid:%d)\n", UP);
 			return false;
 		}
diff --git a/drivers/staging/rtl8192u/r8190_rtl8256.c b/drivers/staging/rtl8192u/r8190_rtl8256.c
index 1868352..e000329 100644
--- a/drivers/staging/rtl8192u/r8190_rtl8256.c
+++ b/drivers/staging/rtl8192u/r8190_rtl8256.c
@@ -225,7 +225,7 @@ void PHY_SetRF8256CCKTxPower(struct net_device *dev, u8 powerlevel)
 	struct r8192_priv *priv = ieee80211_priv(dev);
 	TxAGC = powerlevel;
 
-	if (priv->bDynamicTxLowPower == TRUE) {
+	if (priv->bDynamicTxLowPower) {
 		if (priv->CustomerID == RT_CID_819x_Netcore)
 			TxAGC = 0x22;
 		else
@@ -275,7 +275,7 @@ void PHY_SetRF8256OFDMTxPower(struct net_device *dev, u8 powerlevel)
 			priv->Pwr_Track = writeVal_tmp;
 		}
 
-		if (priv->bDynamicTxHighPower == TRUE) {
+		if (priv->bDynamicTxHighPower) {
 			/*Add by Jacken 2008/03/06
 			 *Emily, 20080613. Set low tx power for both MCS and legacy OFDM
 			 */
diff --git a/drivers/staging/rtl8192u/r8190_rtl8256.h b/drivers/staging/rtl8192u/r8190_rtl8256.h
index fa6dd37..6e5662f 100644
--- a/drivers/staging/rtl8192u/r8190_rtl8256.h
+++ b/drivers/staging/rtl8192u/r8190_rtl8256.h
@@ -13,8 +13,9 @@
 #ifndef RTL8225H
 #define RTL8225H
 
-#define RTL819X_TOTAL_RF_PATH 2 //for 8192U
-extern void PHY_SetRF8256Bandwidth(struct net_device *dev , HT_CHANNEL_WIDTH Bandwidth);
+#define RTL819X_TOTAL_RF_PATH 2 /* for 8192U */
+extern void PHY_SetRF8256Bandwidth(struct net_device *dev,
+				   HT_CHANNEL_WIDTH Bandwidth);
 extern void PHY_RF8256_Config(struct net_device *dev);
 extern void phy_RF8256_Config_ParaFile(struct net_device *dev);
 extern void PHY_SetRF8256CCKTxPower(struct net_device *dev, u8	powerlevel);
diff --git a/drivers/staging/rtl8192u/r8192U.h b/drivers/staging/rtl8192u/r8192U.h
index c9d8c10..6c2e438 100644
--- a/drivers/staging/rtl8192u/r8192U.h
+++ b/drivers/staging/rtl8192u/r8192U.h
@@ -40,8 +40,6 @@
 #define RTL8192U
 #define RTL819xU_MODULE_NAME "rtl819xU"
 /* HW security */
-#define FALSE 0
-#define TRUE 1
 #define MAX_KEY_LEN     61
 #define KEY_BUF_SIZE    5
 
diff --git a/drivers/staging/rtl8192u/r8192U_core.c b/drivers/staging/rtl8192u/r8192U_core.c
index e031a25..a4795af 100644
--- a/drivers/staging/rtl8192u/r8192U_core.c
+++ b/drivers/staging/rtl8192u/r8192U_core.c
@@ -408,9 +408,8 @@ inline void force_pci_posting(struct net_device *dev)
 }
 
 static struct net_device_stats *rtl8192_stats(struct net_device *dev);
-void rtl8192_commit(struct net_device *dev);
-void rtl8192_restart(struct work_struct *work);
-void watch_dog_timer_callback(unsigned long data);
+static void rtl8192_restart(struct work_struct *work);
+static void watch_dog_timer_callback(unsigned long data);
 
 /****************************************************************************
  *   -----------------------------PROCFS STUFF-------------------------
@@ -827,7 +826,6 @@ void rtl8192_rtx_disable(struct net_device *dev)
 		netdev_warn(dev, "skb_queue not empty\n");
 
 	skb_queue_purge(&priv->skb_queue);
-	return;
 }
 
 inline u16 ieeerate2rtlrate(int rate)
@@ -966,8 +964,6 @@ static void rtl8192_hard_data_xmit(struct sk_buff *skb, struct net_device *dev,
 	ret = rtl8192_tx(dev, skb);
 
 	spin_unlock_irqrestore(&priv->tx_lock, flags);
-
-	return;
 }
 
 /* This is a rough attempt to TX a frame
@@ -1766,7 +1762,7 @@ void rtl8192_usb_deleteendpoints(struct net_device *dev)
 }
 #endif
 
-extern void rtl8192_update_ratr_table(struct net_device *dev);
+static void rtl8192_update_ratr_table(struct net_device *dev);
 static void rtl8192_link_change(struct net_device *dev)
 {
 	struct r8192_priv *priv = ieee80211_priv(dev);
@@ -1971,7 +1967,7 @@ static int rtl8192_handle_assoc_response(struct net_device *dev,
 }
 
 
-void rtl8192_update_ratr_table(struct net_device *dev)
+static void rtl8192_update_ratr_table(struct net_device *dev)
 {
 	struct r8192_priv *priv = ieee80211_priv(dev);
 	struct ieee80211_device *ieee = priv->ieee80211;
@@ -2067,7 +2063,6 @@ static void rtl8192_refresh_supportrate(struct r8192_priv *priv)
 		memcpy(ieee->Regdot11HTOperationalRateSet, ieee->RegHTSuppRateSet, 16);
 	else
 		memset(ieee->Regdot11HTOperationalRateSet, 0, 16);
-	return;
 }
 
 static u8 rtl8192_getSupportedWireleeMode(struct net_device *dev)
@@ -2078,10 +2073,10 @@ static u8 rtl8192_getSupportedWireleeMode(struct net_device *dev)
 	case RF_8225:
 	case RF_8256:
 	case RF_PSEUDO_11N:
-		ret = (WIRELESS_MODE_N_24G|WIRELESS_MODE_G|WIRELESS_MODE_B);
+		ret = WIRELESS_MODE_N_24G|WIRELESS_MODE_G|WIRELESS_MODE_B;
 		break;
 	case RF_8258:
-		ret = (WIRELESS_MODE_A|WIRELESS_MODE_N_5G);
+		ret = WIRELESS_MODE_A|WIRELESS_MODE_N_5G;
 		break;
 	default:
 		ret = WIRELESS_MODE_B;
@@ -2143,7 +2138,7 @@ static void rtl8192_init_priv_variable(struct net_device *dev)
 	//for silent reset
 	priv->IrpPendingCount = 1;
 	priv->ResetProgress = RESET_TYPE_NORESET;
-	priv->bForcedSilentReset = 0;
+	priv->bForcedSilentReset = false;
 	priv->bDisableNormalResetCheck = false;
 	priv->force_reset = false;
 
@@ -2247,9 +2242,9 @@ static void rtl8192_init_priv_lock(struct r8192_priv *priv)
 	mutex_init(&priv->mutex);
 }
 
-extern  void    rtl819x_watchdog_wqcallback(struct work_struct *work);
+static void rtl819x_watchdog_wqcallback(struct work_struct *work);
 
-void rtl8192_irq_rx_tasklet(struct r8192_priv *priv);
+static void rtl8192_irq_rx_tasklet(struct r8192_priv *priv);
 //init tasklet and wait_queue here. only 2.6 above kernel is considered
 #define DRV_NAME "wlan0"
 static void rtl8192_init_priv_task(struct net_device *dev)
@@ -2310,11 +2305,11 @@ static void rtl8192_read_eeprom_info(struct net_device *dev)
 	}
 
 	if (bLoad_From_EEPOM) {
-		tmpValue = eprom_read(dev, (EEPROM_VID>>1));
+		tmpValue = eprom_read(dev, EEPROM_VID>>1);
 		priv->eeprom_vid = endian_swap(&tmpValue);
-		priv->eeprom_pid = eprom_read(dev, (EEPROM_PID>>1));
-		tmpValue = eprom_read(dev, (EEPROM_ChannelPlan>>1));
-		priv->eeprom_ChannelPlan = ((tmpValue&0xff00)>>8);
+		priv->eeprom_pid = eprom_read(dev, EEPROM_PID>>1);
+		tmpValue = eprom_read(dev, EEPROM_ChannelPlan>>1);
+		priv->eeprom_ChannelPlan = (tmpValue & 0xff00)>>8;
 		priv->btxpowerdata_readfromEEPORM = true;
 		priv->eeprom_CustomerID = eprom_read(dev, (EEPROM_Customer_ID>>1)) >>8;
 	} else {
@@ -2397,7 +2392,8 @@ static void rtl8192_read_eeprom_info(struct net_device *dev)
 			}
 		} else if (priv->EEPROM_Def_Ver == 1) {
 			if (bLoad_From_EEPOM) {
-				tmpValue = eprom_read(dev, (EEPROM_TxPwIndex_CCK_V1>>1));
+				tmpValue = eprom_read(dev,
+						EEPROM_TxPwIndex_CCK_V1 >> 1);
 				tmpValue = (tmpValue & 0xff00) >> 8;
 			} else {
 				tmpValue = 0x10;
@@ -2410,7 +2406,8 @@ static void rtl8192_read_eeprom_info(struct net_device *dev)
 				tmpValue = 0x1010;
 			*((u16 *)(&priv->EEPROMTxPowerLevelCCK_V1[1])) = tmpValue;
 			if (bLoad_From_EEPOM)
-				tmpValue = eprom_read(dev, (EEPROM_TxPwIndex_OFDM_24G_V1>>1));
+				tmpValue = eprom_read(dev,
+					EEPROM_TxPwIndex_OFDM_24G_V1 >> 1);
 			else
 				tmpValue = 0x1010;
 			*((u16 *)(&priv->EEPROMTxPowerLevelOFDM24G[0])) = tmpValue;
@@ -2453,7 +2450,7 @@ static void rtl8192_read_eeprom_info(struct net_device *dev)
 		// Antenna B gain offset to antenna A, bit0~3
 		priv->AntennaTxPwDiff[0] = (priv->EEPROMTxPowerDiff & 0xf);
 		// Antenna C gain offset to antenna A, bit4~7
-		priv->AntennaTxPwDiff[1] = ((priv->EEPROMTxPowerDiff & 0xf0)>>4);
+		priv->AntennaTxPwDiff[1] = (priv->EEPROMTxPowerDiff & 0xf0)>>4;
 		// CrystalCap, bit12~15
 		priv->CrystalCap = priv->EEPROMCrystalCap;
 		// ThermalMeter, bit0~3 for RFIC1, bit4~7 for RFIC2
@@ -2505,7 +2502,6 @@ static void rtl8192_read_eeprom_info(struct net_device *dev)
 	//we need init DIG RATR table here again.
 
 	RT_TRACE(COMP_EPROM, "<===========%s()\n", __func__);
-	return;
 }
 
 static short rtl8192_get_channel_map(struct net_device *dev)
@@ -2547,9 +2543,8 @@ static short rtl8192_init(struct net_device *dev)
 	rtl8192_read_eeprom_info(dev);
 	rtl8192_get_channel_map(dev);
 	init_hal_dm(dev);
-	init_timer(&priv->watch_dog_timer);
-	priv->watch_dog_timer.data = (unsigned long)dev;
-	priv->watch_dog_timer.function = watch_dog_timer_callback;
+	setup_timer(&priv->watch_dog_timer, watch_dog_timer_callback,
+		    (unsigned long)dev);
 	if (rtl8192_usb_initendpoints(dev) != 0) {
 		DMESG("Endopoints initialization failed");
 		return -ENOMEM;
@@ -2686,7 +2681,7 @@ static bool rtl8192_adapter_start(struct net_device *dev)
 
 	read_nic_dword(dev, CPU_GEN, &dwRegRead);
 	if (priv->LoopbackMode == RTL819xU_NO_LOOPBACK)
-		dwRegRead = ((dwRegRead & CPU_GEN_NO_LOOPBACK_MSK) | CPU_GEN_NO_LOOPBACK_SET);
+		dwRegRead = (dwRegRead & CPU_GEN_NO_LOOPBACK_MSK) | CPU_GEN_NO_LOOPBACK_SET;
 	else if (priv->LoopbackMode == RTL819xU_MAC_LOOPBACK)
 		dwRegRead |= CPU_CCK_LOOPBACK;
 	else
@@ -2767,7 +2762,7 @@ static bool rtl8192_adapter_start(struct net_device *dev)
 	//
 #ifdef TO_DO_LIST
 	if (Adapter->ResetProgress == RESET_TYPE_NORESET) {
-		if (pMgntInfo->RegRfOff == TRUE) { /* User disable RF via registry. */
+		if (pMgntInfo->RegRfOff == true) { /* User disable RF via registry. */
 			RT_TRACE((COMP_INIT|COMP_RF), DBG_LOUD, ("InitializeAdapter819xUsb(): Turn off RF for RegRfOff ----------\n"));
 			MgntActSet_RF_State(Adapter, eRfOff, RF_CHANGE_BY_SW);
 			// Those actions will be discard in MgntActSet_RF_State because of the same state
@@ -2814,15 +2809,15 @@ static bool rtl8192_adapter_start(struct net_device *dev)
 		u8 tmpvalue;
 		read_nic_byte(dev, 0x301, &tmpvalue);
 		if (tmpvalue == 0x03) {
-			priv->bDcut = TRUE;
+			priv->bDcut = true;
 			RT_TRACE(COMP_POWER_TRACKING, "D-cut\n");
 		} else {
-			priv->bDcut = FALSE;
+			priv->bDcut = false;
 			RT_TRACE(COMP_POWER_TRACKING, "C-cut\n");
 		}
 		dm_initialize_txpower_tracking(dev);
 
-		if (priv->bDcut == TRUE) {
+		if (priv->bDcut) {
 			u32 i, TempCCk;
 			u32 tmpRegA = rtl8192_QueryBBReg(dev, rOFDM0_XATxIQImbalance, bMaskDWord);
 			for (i = 0; i < TxBBGainTableLength; i++) {
@@ -2874,11 +2869,11 @@ static bool HalTxCheckStuck819xUsb(struct net_device *dev)
 {
 	struct r8192_priv *priv = ieee80211_priv(dev);
 	u16		RegTxCounter;
-	bool		bStuck = FALSE;
+	bool		bStuck = false;
 	read_nic_word(dev, 0x128, &RegTxCounter);
 	RT_TRACE(COMP_RESET, "%s():RegTxCounter is %d,TxCounter is %d\n", __func__, RegTxCounter, priv->TxCounter);
 	if (priv->TxCounter == RegTxCounter)
-		bStuck = TRUE;
+		bStuck = true;
 
 	priv->TxCounter = RegTxCounter;
 
@@ -2920,7 +2915,7 @@ static bool HalRxCheckStuck819xUsb(struct net_device *dev)
 {
 	u16	RegRxCounter;
 	struct r8192_priv *priv = ieee80211_priv(dev);
-	bool bStuck = FALSE;
+	bool bStuck = false;
 	static u8	rx_chk_cnt;
 	read_nic_word(dev, 0x130, &RegRxCounter);
 	RT_TRACE(COMP_RESET, "%s(): RegRxCounter is %d,RxCounter is %d\n", __func__, RegRxCounter, priv->RxCounter);
@@ -2951,7 +2946,7 @@ static bool HalRxCheckStuck819xUsb(struct net_device *dev)
 	}
 
 	if (priv->RxCounter == RegRxCounter)
-		bStuck = TRUE;
+		bStuck = true;
 
 	priv->RxCounter = RegRxCounter;
 
@@ -2961,10 +2956,10 @@ static bool HalRxCheckStuck819xUsb(struct net_device *dev)
 static RESET_TYPE RxCheckStuck(struct net_device *dev)
 {
 	struct r8192_priv *priv = ieee80211_priv(dev);
-	bool        bRxCheck = FALSE;
+	bool        bRxCheck = false;
 
 	if (priv->IrpPendingCount > 1)
-		bRxCheck = TRUE;
+		bRxCheck = true;
 
 	if (bRxCheck) {
 		if (HalRxCheckStuck819xUsb(dev)) {
@@ -3021,9 +3016,9 @@ static RESET_TYPE rtl819x_ifcheck_resetornot(struct net_device *dev)
 
 }
 
-void rtl8192_cancel_deferred_work(struct r8192_priv *priv);
-int _rtl8192_up(struct net_device *dev);
-int rtl8192_close(struct net_device *dev);
+static void rtl8192_cancel_deferred_work(struct r8192_priv *priv);
+static int _rtl8192_up(struct net_device *dev);
+static int rtl8192_close(struct net_device *dev);
 
 
 
@@ -3642,7 +3637,7 @@ static u8 HwRateToMRate90(bool bIsHT, u8 rate)
 				ret_rate = MGN_MCS15;
 				break;
 			case DESC90_RATEMCS32:
-				ret_rate = (0x80|0x20);
+				ret_rate = 0x80|0x20;
 				break;
 
 			default:
@@ -4038,7 +4033,7 @@ static void rtl8192_query_rxphystatus(struct r8192_priv *priv,
 
 		if (!priv->bCckHighPower) {
 			report = pcck_buf->cck_agc_rpt & 0xc0;
-			report = report>>6;
+			report >>= 6;
 			switch (report) {
 				//Fixed by Jacken from Bryant 2008-03-20
 				//Original value is -38 , -26 , -14 , -2
@@ -4058,7 +4053,7 @@ static void rtl8192_query_rxphystatus(struct r8192_priv *priv,
 			}
 		} else {
 			report = pcck_buf->cck_agc_rpt & 0x60;
-			report = report>>5;
+			report >>= 5;
 			switch (report) {
 			case 0x3:
 				rx_pwr_all = -35 - ((pcck_buf->cck_agc_rpt & 0x1f)<<1);
@@ -4208,7 +4203,7 @@ static void TranslateRxSignalStuff819xUsb(struct sk_buff *skb,
 	struct net_device *dev = info->dev;
 	struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
 	bool bpacket_match_bssid, bpacket_toself;
-	bool bPacketBeacon = FALSE, bToSelfBA = FALSE;
+	bool bPacketBeacon = false, bToSelfBA = false;
 	static struct ieee80211_rx_stats  previous_stats;
 	struct ieee80211_hdr_3addr *hdr;//by amy
 	u16 fc, type;
@@ -4227,9 +4222,9 @@ static void TranslateRxSignalStuff819xUsb(struct sk_buff *skb,
 	praddr = hdr->addr1;
 
 	/* Check if the received packet is acceptable. */
-	bpacket_match_bssid = ((IEEE80211_FTYPE_CTL != type) &&
+	bpacket_match_bssid = (IEEE80211_FTYPE_CTL != type) &&
 			       (eqMacAddr(priv->ieee80211->current_network.bssid,  (fc & IEEE80211_FCTL_TODS) ? hdr->addr1 : (fc & IEEE80211_FCTL_FROMDS) ? hdr->addr2 : hdr->addr3))
-			       && (!pstats->bHwError) && (!pstats->bCRC) && (!pstats->bICV));
+			       && (!pstats->bHwError) && (!pstats->bCRC) && (!pstats->bICV);
 	bpacket_toself =  bpacket_match_bssid & (eqMacAddr(praddr, priv->ieee80211->dev->dev_addr));
 
 	if (WLAN_FC_GET_FRAMETYPE(fc) == IEEE80211_STYPE_BEACON)
@@ -4474,13 +4469,10 @@ static void query_rxdesc_status(struct sk_buff *skb,
 		skb_pull(skb, stats->RxBufShift + stats->RxDrvInfoSize);
 	}
 
-	/* for debug 2008.5.29 */
-
-	//added by vivi, for MP, 20080108
-	stats->RxIs40MHzPacket = driver_info->BW;
-	if (stats->RxDrvInfoSize != 0)
+	if (driver_info) {
+		stats->RxIs40MHzPacket = driver_info->BW;
 		TranslateRxSignalStuff819xUsb(skb, stats, driver_info);
-
+	}
 }
 
 static void rtl8192_rx_nomal(struct sk_buff *skb)
diff --git a/drivers/staging/rtl8192u/r8192U_dm.c b/drivers/staging/rtl8192u/r8192U_dm.c
index ee6b936..12dd19e 100644
--- a/drivers/staging/rtl8192u/r8192U_dm.c
+++ b/drivers/staging/rtl8192u/r8192U_dm.c
@@ -36,11 +36,12 @@ static u32 edca_setting_UL[HT_IOT_PEER_MAX] = {
 
 /*------------------------Define global variable-----------------------------*/
 /* Debug variable ? */
-dig_t	dm_digtable;
+struct dig dm_digtable;
 /* Store current software write register content for MAC PHY. */
 u8		dm_shadow[16][256] = { {0} };
 /* For Dynamic Rx Path Selection by Signal Strength */
-DRxPathSel	DM_RxPathSelTable;
+struct dynamic_rx_path_sel DM_RxPathSelTable;
+
 /*------------------------Define global variable-----------------------------*/
 
 
@@ -502,7 +503,7 @@ static u8	CCKSwingTable_Ch14[CCK_Table_length][8] = {
 static void dm_TXPowerTrackingCallback_TSSI(struct net_device *dev)
 {
 	struct r8192_priv *priv = ieee80211_priv(dev);
-	bool						bHighpowerstate, viviflag = FALSE;
+	bool						bHighpowerstate, viviflag = false;
 	DCMD_TXCMD_T			tx_cmd;
 	u8						powerlevelOFDM24G;
 	int						i = 0, j = 0, k = 0;
@@ -558,13 +559,13 @@ static void dm_TXPowerTrackingCallback_TSSI(struct net_device *dev)
 			/* check if the report value is right */
 			for (k = 0; k < 5; k++) {
 				if (tmp_report[k] <= 20) {
-					viviflag = TRUE;
+					viviflag = true;
 					break;
 				}
 			}
-			if (viviflag == TRUE) {
+			if (viviflag == true) {
 				write_nic_byte(dev, 0x1ba, 0);
-				viviflag = FALSE;
+				viviflag = false;
 				RT_TRACE(COMP_POWER_TRACKING, "we filtered the data\n");
 				for (k = 0; k < 5; k++)
 					tmp_report[k] = 0;
@@ -587,7 +588,7 @@ static void dm_TXPowerTrackingCallback_TSSI(struct net_device *dev)
 				delta = TSSI_13dBm - Avg_TSSI_Meas_from_driver;
 
 			if (delta <= E_FOR_TX_POWER_TRACK) {
-				priv->ieee80211->bdynamic_txpower_enable = TRUE;
+				priv->ieee80211->bdynamic_txpower_enable = true;
 				write_nic_byte(dev, 0x1ba, 0);
 				RT_TRACE(COMP_POWER_TRACKING, "tx power track is done\n");
 				RT_TRACE(COMP_POWER_TRACKING, "priv->rfa_txpowertrackingindex = %d\n", priv->rfa_txpowertrackingindex);
@@ -624,10 +625,10 @@ static void dm_TXPowerTrackingCallback_TSSI(struct net_device *dev)
 
 			if (priv->cck_present_attentuation > -1 && priv->cck_present_attentuation < 23) {
 				if (priv->ieee80211->current_network.channel == 14 && !priv->bcck_in_ch14) {
-					priv->bcck_in_ch14 = TRUE;
+					priv->bcck_in_ch14 = true;
 					dm_cck_txpower_adjust(dev, priv->bcck_in_ch14);
 				} else if (priv->ieee80211->current_network.channel != 14 && priv->bcck_in_ch14) {
-					priv->bcck_in_ch14 = FALSE;
+					priv->bcck_in_ch14 = false;
 					dm_cck_txpower_adjust(dev, priv->bcck_in_ch14);
 				} else
 					dm_cck_txpower_adjust(dev, priv->bcck_in_ch14);
@@ -638,7 +639,7 @@ static void dm_TXPowerTrackingCallback_TSSI(struct net_device *dev)
 			RT_TRACE(COMP_POWER_TRACKING, "priv->cck_present_attentuation = %d\n", priv->cck_present_attentuation);
 
 			if (priv->cck_present_attentuation_difference <= -12 || priv->cck_present_attentuation_difference >= 24) {
-				priv->ieee80211->bdynamic_txpower_enable = TRUE;
+				priv->ieee80211->bdynamic_txpower_enable = true;
 				write_nic_byte(dev, 0x1ba, 0);
 				RT_TRACE(COMP_POWER_TRACKING, "tx power track--->limited\n");
 				return;
@@ -651,7 +652,7 @@ static void dm_TXPowerTrackingCallback_TSSI(struct net_device *dev)
 			break;
 		}
 	}
-	priv->ieee80211->bdynamic_txpower_enable = TRUE;
+	priv->ieee80211->bdynamic_txpower_enable = true;
 	write_nic_byte(dev, 0x1ba, 0);
 }
 
@@ -684,7 +685,7 @@ static void dm_TXPowerTrackingCallback_ThermalMeter(struct net_device *dev)
 				break;
 			}
 		}
-		priv->btxpower_trackingInit = TRUE;
+		priv->btxpower_trackingInit = true;
 		/*pHalData->TXPowercount = 0;*/
 		return;
 	}
@@ -717,7 +718,7 @@ static void dm_TXPowerTrackingCallback_ThermalMeter(struct net_device *dev)
 		if (tmpCCK40Mindex >= CCK_Table_length)
 			tmpCCK40Mindex = CCK_Table_length-1;
 	} else {
-		tmpval = ((u8)tmpRegA - priv->ThermalMeter[0]);
+		tmpval = (u8)tmpRegA - priv->ThermalMeter[0];
 
 		if (tmpval >= 6) /* higher temperature */
 			tmpOFDMindex = tmpCCK20Mindex = 0; /* max to +6dB */
@@ -734,10 +735,10 @@ static void dm_TXPowerTrackingCallback_ThermalMeter(struct net_device *dev)
 		tmpCCKindex = tmpCCK20Mindex;
 
 	if (priv->ieee80211->current_network.channel == 14 && !priv->bcck_in_ch14) {
-		priv->bcck_in_ch14 = TRUE;
+		priv->bcck_in_ch14 = true;
 		CCKSwingNeedUpdate = 1;
 	} else if (priv->ieee80211->current_network.channel != 14 && priv->bcck_in_ch14) {
-		priv->bcck_in_ch14 = FALSE;
+		priv->bcck_in_ch14 = false;
 		CCKSwingNeedUpdate = 1;
 	}
 
@@ -765,7 +766,7 @@ void dm_txpower_trackingcallback(struct work_struct *work)
 	struct r8192_priv *priv = container_of(dwork, struct r8192_priv, txpower_tracking_wq);
 	struct net_device *dev = priv->ieee80211->dev;
 
-	if (priv->bDcut == TRUE)
+	if (priv->bDcut == true)
 		dm_TXPowerTrackingCallback_TSSI(dev);
 	else
 		dm_TXPowerTrackingCallback_ThermalMeter(dev);
@@ -1273,9 +1274,9 @@ static void dm_InitializeTXPowerTracking_TSSI(struct net_device *dev)
 	priv->cck_txbbgain_ch14_table[22].ccktxbb_valuearray[6] = 0x00;
 	priv->cck_txbbgain_ch14_table[22].ccktxbb_valuearray[7] = 0x00;
 
-	priv->btxpower_tracking = TRUE;
+	priv->btxpower_tracking = true;
 	priv->txpower_count       = 0;
-	priv->btxpower_trackingInit = FALSE;
+	priv->btxpower_trackingInit = false;
 
 }
 
@@ -1289,18 +1290,18 @@ static void dm_InitializeTXPowerTracking_ThermalMeter(struct net_device *dev)
 	 * 3-wire by driver causes RF to go into a wrong state.
 	 */
 	if (priv->ieee80211->FwRWRF)
-		priv->btxpower_tracking = TRUE;
+		priv->btxpower_tracking = true;
 	else
-		priv->btxpower_tracking = FALSE;
+		priv->btxpower_tracking = false;
 	priv->txpower_count       = 0;
-	priv->btxpower_trackingInit = FALSE;
+	priv->btxpower_trackingInit = false;
 }
 
 void dm_initialize_txpower_tracking(struct net_device *dev)
 {
 	struct r8192_priv *priv = ieee80211_priv(dev);
 
-	if (priv->bDcut == TRUE)
+	if (priv->bDcut == true)
 		dm_InitializeTXPowerTracking_TSSI(dev);
 	else
 		dm_InitializeTXPowerTracking_ThermalMeter(dev);
@@ -1356,7 +1357,7 @@ static void dm_check_txpower_tracking(struct net_device *dev)
 #ifdef RTL8190P
 	dm_CheckTXPowerTracking_TSSI(dev);
 #else
-	if (priv->bDcut == TRUE)
+	if (priv->bDcut == true)
 		dm_CheckTXPowerTracking_TSSI(dev);
 	else
 		dm_CheckTXPowerTracking_ThermalMeter(dev);
@@ -1466,7 +1467,7 @@ void dm_cck_txpower_adjust(struct net_device *dev, bool binch14)
 {	/*  dm_CCKTxPowerAdjust */
 	struct r8192_priv *priv = ieee80211_priv(dev);
 
-	if (priv->bDcut == TRUE)
+	if (priv->bDcut == true)
 		dm_CCKTxPowerAdjust_TSSI(dev, binch14);
 	else
 		dm_CCKTxPowerAdjust_ThermalMeter(dev, binch14);
@@ -1628,8 +1629,8 @@ void dm_change_dynamic_initgain_thresh(struct net_device *dev, u32 dm_type,
 		dm_digtable.rssi_low_thresh = dm_value;
 	} else if (dm_type == DIG_TYPE_THRESH_HIGHPWR_HIGH) {
 		dm_digtable.rssi_high_power_highthresh = dm_value;
-	} else if (dm_type == DIG_TYPE_THRESH_HIGHPWR_HIGH) {
-		dm_digtable.rssi_high_power_highthresh = dm_value;
+	} else if (dm_type == DIG_TYPE_THRESH_HIGHPWR_LOW) {
+		dm_digtable.rssi_high_power_lowthresh = dm_value;
 	} else if (dm_type == DIG_TYPE_ENABLE) {
 		dm_digtable.dig_state		= DM_STA_DIG_MAX;
 		dm_digtable.dig_enable_flag	= true;
@@ -2270,10 +2271,10 @@ static void dm_check_edca_turbo(
 				/*  For Each time updating EDCA parameter, reset EDCA turbo mode status. */
 				dm_init_edca_turbo(dev);
 				u1bAIFS = qos_parameters->aifs[0] * ((mode&(IEEE_G|IEEE_N_24G)) ? 9 : 20) + aSifsTime;
-				u4bAcParam = ((((u32)(qos_parameters->tx_op_limit[0])) << AC_PARAM_TXOP_LIMIT_OFFSET)|
+				u4bAcParam = (((u32)(qos_parameters->tx_op_limit[0])) << AC_PARAM_TXOP_LIMIT_OFFSET)|
 					(((u32)(qos_parameters->cw_max[0])) << AC_PARAM_ECW_MAX_OFFSET)|
 					(((u32)(qos_parameters->cw_min[0])) << AC_PARAM_ECW_MIN_OFFSET)|
-					((u32)u1bAIFS << AC_PARAM_AIFS_OFFSET));
+					((u32)u1bAIFS << AC_PARAM_AIFS_OFFSET);
 				/*write_nic_dword(dev, WDCAPARA_ADD[i], u4bAcParam);*/
 				write_nic_dword(dev, EDCAPARA_BE,  u4bAcParam);
 
@@ -2314,7 +2315,7 @@ static void dm_init_ctstoself(struct net_device *dev)
 {
 	struct r8192_priv *priv = ieee80211_priv((struct net_device *)dev);
 
-	priv->ieee80211->bCTSToSelfEnable = TRUE;
+	priv->ieee80211->bCTSToSelfEnable = true;
 	priv->ieee80211->CTSToSelfTH = CTSToSelfTHVal;
 }
 
@@ -2327,7 +2328,7 @@ static void dm_ctstoself(struct net_device *dev)
 	unsigned long						curTxOkCnt = 0;
 	unsigned long						curRxOkCnt = 0;
 
-	if (priv->ieee80211->bCTSToSelfEnable != TRUE) {
+	if (priv->ieee80211->bCTSToSelfEnable != true) {
 		pHTInfo->IOTAction &= ~HT_IOT_ACT_FORCED_CTS2SELF;
 		return;
 	}
@@ -2419,9 +2420,9 @@ void dm_rf_pathcheck_workitemcallback(struct work_struct *work)
 	/* Check Bit 0-3, it means if RF A-D is enabled. */
 	for (i = 0; i < RF90_PATH_MAX; i++) {
 		if (rfpath & (0x01<<i))
-			priv->brfpath_rxenable[i] = 1;
+			priv->brfpath_rxenable[i] = true;
 		else
-			priv->brfpath_rxenable[i] = 0;
+			priv->brfpath_rxenable[i] = false;
 	}
 	if (!DM_RxPathSelTable.Enable)
 		return;
@@ -2681,10 +2682,8 @@ static void dm_init_fsync(struct net_device *dev)
 	priv->ieee80211->fsync_seconddiff_ratethreshold = 200;
 	priv->ieee80211->fsync_state = Default_Fsync;
 	priv->framesyncMonitor = 1;	/* current default 0xc38 monitor on */
-
-	init_timer(&priv->fsync_timer);
-	priv->fsync_timer.data = (unsigned long)dev;
-	priv->fsync_timer.function = dm_fsync_timer_callback;
+	setup_timer(&priv->fsync_timer, dm_fsync_timer_callback,
+		    (unsigned long)dev);
 }
 
 static void dm_deInit_fsync(struct net_device *dev)
diff --git a/drivers/staging/rtl8192u/r8192U_dm.h b/drivers/staging/rtl8192u/r8192U_dm.h
index 3008f91..6cd32eb4 100644
--- a/drivers/staging/rtl8192u/r8192U_dm.h
+++ b/drivers/staging/rtl8192u/r8192U_dm.h
@@ -67,7 +67,7 @@
 
 /*------------------------------Define structure----------------------------*/
 /* 2007/10/04 MH Define upper and lower threshold of DIG enable or disable. */
-typedef struct _dynamic_initial_gain_threshold_ {
+struct dig {
 	u8		dig_enable_flag;
 	u8		dig_algorithm;
 	u8		dbg_mode;
@@ -98,7 +98,7 @@ typedef struct _dynamic_initial_gain_threshold_ {
 	bool		initialgain_lowerbound_state;
 
 	long		rssi_val;
-} dig_t;
+};
 
 typedef enum tag_dynamic_init_gain_state_definition {
 	DM_STA_DIG_OFF = 0,
@@ -163,7 +163,7 @@ typedef enum tag_dig_cck_cs_ratio_state_definition {
 	DIG_CS_RATIO_HIGHER = 1,
 	DIG_CS_MAX
 } dm_dig_cs_ratio_e;
-typedef struct _Dynamic_Rx_Path_Selection_ {
+struct dynamic_rx_path_sel {
 	u8		Enable;
 	u8		DbgMode;
 	u8		cck_method;
@@ -177,7 +177,7 @@ typedef struct _Dynamic_Rx_Path_Selection_ {
 	u8		rf_rssi[4];
 	u8		rf_enable_rssi_th[4];
 	long		cck_pwdb_sta[4];
-} DRxPathSel;
+};
 
 typedef enum tag_CCK_Rx_Path_Method_Definition {
 	CCK_Rx_Version_1 = 0,
@@ -200,9 +200,9 @@ typedef struct tag_Tx_Config_Cmd_Format {
 
 
 /*------------------------Export global variable----------------------------*/
-extern dig_t dm_digtable;
+extern struct dig dm_digtable;
 extern u8 dm_shadow[16][256];
-extern DRxPathSel DM_RxPathSelTable;
+extern struct dynamic_rx_path_sel DM_RxPathSelTable;
 /*------------------------Export global variable----------------------------*/
 
 
diff --git a/drivers/staging/rtl8192u/r8192U_wx.c b/drivers/staging/rtl8192u/r8192U_wx.c
index 361d2d0..8359705 100644
--- a/drivers/staging/rtl8192u/r8192U_wx.c
+++ b/drivers/staging/rtl8192u/r8192U_wx.c
@@ -139,7 +139,7 @@ static int r8192_wx_force_reset(struct net_device *dev,
 
 	down(&priv->wx_sem);
 
-	printk("%s(): force reset ! extra is %d\n", __func__, *extra);
+	netdev_dbg(dev, "%s(): force reset ! extra is %d\n", __func__, *extra);
 	priv->force_reset = *extra;
 	up(&priv->wx_sem);
 	return 0;
@@ -335,7 +335,7 @@ static int r8192_wx_set_scan(struct net_device *dev, struct iw_request_info *a,
 	if (!priv->up)
 		return -ENETDOWN;
 
-	if (priv->ieee80211->LinkDetectInfo.bBusyTraffic == true)
+	if (priv->ieee80211->LinkDetectInfo.bBusyTraffic)
 		return -EAGAIN;
 	if (wrqu->data.flags & IW_SCAN_THIS_ESSID) {
 		struct iw_scan_req *req = (struct iw_scan_req *)b;
diff --git a/drivers/staging/rtl8192u/r8192U_wx.h b/drivers/staging/rtl8192u/r8192U_wx.h
index ae7a617..d6a2d97 100644
--- a/drivers/staging/rtl8192u/r8192U_wx.h
+++ b/drivers/staging/rtl8192u/r8192U_wx.h
@@ -1,20 +1,21 @@
 /*
-	This is part of rtl8180 OpenSource driver - v 0.3
-	Copyright (C) Andrea Merello 2004  <andrea.merello@gmail.com>
-	Released under the terms of GPL (General Public Licence)
+ * This is part of rtl8180 OpenSource driver - v 0.3
+ * Copyright (C) Andrea Merello 2004  <andrea.merello@gmail.com>
+ * Released under the terms of GPL (General Public Licence)
+ *
+ * Parts of this driver are based on the GPL part of the official realtek driver
+ * Parts of this driver are based on the rtl8180 driver skeleton from Patric
+ * Schenke & Andres Salomon
+ * Parts of this driver are based on the Intel Pro Wireless 2100 GPL driver
+ *
+ * We want to thank the Authors of such projects and the Ndiswrapper project
+ * Authors.
+ */
 
-	Parts of this driver are based on the GPL part of the official realtek driver
-	Parts of this driver are based on the rtl8180 driver skeleton from Patric Schenke & Andres Salomon
-	Parts of this driver are based on the Intel Pro Wireless 2100 GPL driver
-
-	We want to thank the Authors of such projects and the Ndiswrapper project Authors.
-*/
-
-/* this file (will) contains wireless extension handlers*/
+/* this file (will) contains wireless extension handlers */
 
 #ifndef R8180_WX_H
 #define R8180_WX_H
-//#include <linux/wireless.h>
 
 extern struct iw_handler_def r8192_wx_handlers_def;
 /* Enable  the rtl819x_core.c to share this function, david 2008.9.22 */
diff --git a/drivers/staging/rtl8192u/r819xU_firmware.c b/drivers/staging/rtl8192u/r819xU_firmware.c
index c230be2..d27b1e2 100644
--- a/drivers/staging/rtl8192u/r819xU_firmware.c
+++ b/drivers/staging/rtl8192u/r819xU_firmware.c
@@ -37,7 +37,6 @@ static bool fw_download_code(struct net_device *dev, u8 *code_virtual_address,
 	bool		    rt_status = true;
 	u16		    frag_threshold;
 	u16		    frag_length, frag_offset = 0;
-	//u16		    total_size;
 	int		    i;
 
 	rt_firmware	    *pfirmware = priv->pFirmware;
@@ -48,7 +47,7 @@ static bool fw_download_code(struct net_device *dev, u8 *code_virtual_address,
 	u8		    index;
 
 	firmware_init_param(dev);
-	//Fragmentation might be required
+	/* Fragmentation might be required */
 	frag_threshold = pfirmware->cmdpacket_frag_thresold;
 	do {
 		if ((buffer_len - frag_offset) > frag_threshold) {
@@ -107,19 +106,20 @@ static bool fw_download_code(struct net_device *dev, u8 *code_virtual_address,
 
 }
 
-//-----------------------------------------------------------------------------
-// Procedure:    Check whether main code is download OK. If OK, turn on CPU
-//
-// Description:   CPU register locates in different page against general register.
-//			    Switch to CPU register in the begin and switch back before return
-//
-//
-// Arguments:   The pointer of the adapter
-//
-// Returns:
-//        NDIS_STATUS_FAILURE - the following initialization process should be terminated
-//        NDIS_STATUS_SUCCESS - if firmware initialization process success
-//-----------------------------------------------------------------------------
+/*
+ * Procedure:	Check whether main code is download OK. If OK, turn on CPU
+ *
+ * Description:	CPU register locates in different page against general register.
+ *	    Switch to CPU register in the begin and switch back before return
+ *
+ *
+ * Arguments:   The pointer of the adapter
+ *
+ * Returns:
+ *        NDIS_STATUS_FAILURE - the following initialization process should
+ *				be terminated
+ *        NDIS_STATUS_SUCCESS - if firmware initialization process success
+ */
 static bool CPUcheck_maincodeok_turnonCPU(struct net_device *dev)
 {
 	bool		rt_status = true;
@@ -164,7 +164,7 @@ static bool CPUcheck_maincodeok_turnonCPU(struct net_device *dev)
 
 CPUCheckMainCodeOKAndTurnOnCPU_Fail:
 	RT_TRACE(COMP_ERR, "ERR in %s()\n", __func__);
-	rt_status = FALSE;
+	rt_status = false;
 	return rt_status;
 }
 
@@ -201,7 +201,7 @@ CPUCheckFirmwareReady_Fail:
 bool init_firmware(struct net_device *dev)
 {
 	struct r8192_priv	*priv = ieee80211_priv(dev);
-	bool			rt_status = TRUE;
+	bool			rt_status = true;
 
 	u32			file_length = 0;
 	u8			*mapped_file = NULL;
@@ -222,7 +222,7 @@ bool init_firmware(struct net_device *dev)
 		/* it is called by reset */
 		rst_opt = OPT_SYSTEM_RESET;
 		starting_state = FW_INIT_STEP0_BOOT;
-		// TODO: system reset
+		/* TODO: system reset */
 
 	} else if (pfirmware->firmware_status == FW_STATUS_5_READY) {
 		/* it is called by Initialize */
@@ -281,7 +281,7 @@ bool init_firmware(struct net_device *dev)
 		if (rst_opt == OPT_SYSTEM_RESET)
 			release_firmware(fw_entry);
 
-		if (rt_status != TRUE)
+		if (!rt_status)
 			goto download_firmware_fail;
 
 		switch (init_step) {
@@ -291,7 +291,7 @@ bool init_firmware(struct net_device *dev)
 			 * will set polling bit when firmware code is also configured
 			 */
 			pfirmware->firmware_status = FW_STATUS_1_MOVE_BOOT_CODE;
-			//mdelay(1000);
+			/* mdelay(1000); */
 			/*
 			 * To initialize IMEM, CPU move code  from 0x80000080,
 			 * hence, we send 0x80 byte packet
@@ -304,7 +304,7 @@ bool init_firmware(struct net_device *dev)
 
 			/* Check Put Code OK and Turn On CPU */
 			rt_status = CPUcheck_maincodeok_turnonCPU(dev);
-			if (rt_status != TRUE) {
+			if (!rt_status) {
 				RT_TRACE(COMP_ERR, "CPUcheck_maincodeok_turnonCPU fail!\n");
 				goto download_firmware_fail;
 			}
@@ -318,7 +318,7 @@ bool init_firmware(struct net_device *dev)
 			mdelay(1);
 
 			rt_status = CPUcheck_firmware_ready(dev);
-			if (rt_status != TRUE) {
+			if (!rt_status) {
 				RT_TRACE(COMP_ERR, "CPUcheck_firmware_ready fail(%d)!\n",rt_status);
 				goto download_firmware_fail;
 			}
@@ -330,13 +330,11 @@ bool init_firmware(struct net_device *dev)
 	}
 
 	RT_TRACE(COMP_FIRMWARE, "Firmware Download Success\n");
-	//assert(pfirmware->firmware_status == FW_STATUS_5_READY, ("Firmware Download Fail\n"));
-
 	return rt_status;
 
 download_firmware_fail:
 	RT_TRACE(COMP_ERR, "ERR in %s()\n", __func__);
-	rt_status = FALSE;
+	rt_status = false;
 	return rt_status;
 
 }
diff --git a/drivers/staging/rtl8192u/r819xU_phy.c b/drivers/staging/rtl8192u/r819xU_phy.c
index 0589602..e5dbaca 100644
--- a/drivers/staging/rtl8192u/r819xU_phy.c
+++ b/drivers/staging/rtl8192u/r819xU_phy.c
@@ -106,10 +106,10 @@ void rtl8192_setBBreg(struct net_device *dev, u32 reg_addr, u32 bitmask,
 /******************************************************************************
  * function:  This function reads specific bits from BB register
  * input:     net_device	*dev
- *            u32	 	reg_addr   //target addr to be readback
- *            u32	 	bitmask    //taget bit pos to be readback
+ *            u32		reg_addr   //target addr to be readback
+ *            u32		bitmask    //taget bit pos to be readback
  * output:    none
- * return:    u32	 	data       //the readback register value
+ * return:    u32		data       //the readback register value
  * notice:
  ******************************************************************************/
 u32 rtl8192_QueryBBReg(struct net_device *dev, u32 reg_addr, u32 bitmask)
@@ -352,16 +352,14 @@ u32 rtl8192_phy_QueryRFReg(struct net_device *dev, RF90_RADIO_PATH_E eRFPath,
 		return 0;
 	if (priv->Rf_Mode == RF_OP_By_FW) {
 		reg = phy_FwRFSerialRead(dev, eRFPath, reg_addr);
-		bitshift =  rtl8192_CalculateBitShift(bitmask);
-		reg = (reg & bitmask) >> bitshift;
 		udelay(200);
-		return reg;
 	} else {
 		reg = rtl8192_phy_RFSerialRead(dev, eRFPath, reg_addr);
-		bitshift =  rtl8192_CalculateBitShift(bitmask);
-		reg = (reg & bitmask) >> bitshift;
-		return reg;
 	}
+	bitshift =  rtl8192_CalculateBitShift(bitmask);
+	reg = (reg & bitmask) >> bitshift;
+	return reg;
+
 }
 
 /******************************************************************************
@@ -478,7 +476,7 @@ static void phy_FwRFSerialWrite(struct net_device *dev,
 /******************************************************************************
  * function:  This function reads BB parameters from header file we generate,
  *            and do register read/write
- * input:     net_device 	*dev
+ * input:     net_device	*dev
  * output:    none
  * return:    none
  * notice:    BB parameters may change all the time, so please make
@@ -825,8 +823,8 @@ static void rtl8192_BB_Config_ParaFile(struct net_device *dev)
 	write_nic_byte_E(dev, 0x5e, 0x00);
 	if (priv->card_8192_version == (u8)VERSION_819xU_A) {
 		/* Antenna gain offset from B/C/D to A */
-		reg_u32 = (priv->AntennaTxPwDiff[1]<<4 |
-			   priv->AntennaTxPwDiff[0]);
+		reg_u32 = priv->AntennaTxPwDiff[1]<<4 |
+			   priv->AntennaTxPwDiff[0];
 		rtl8192_setBBreg(dev, rFPGA0_TxGainStage, (bXBTxAGC|bXCTxAGC),
 				 reg_u32);
 
@@ -900,7 +898,7 @@ void rtl8192_phy_getTxPower(struct net_device *dev)
 	read_nic_byte(dev, rOFDM0_RxDetector3, &priv->framesync);
 	read_nic_byte(dev, rOFDM0_RxDetector2, &tmp);
 	priv->framesyncC34 = tmp;
-	RT_TRACE(COMP_INIT, "Default framesync (0x%x) = 0x%x \n",
+	RT_TRACE(COMP_INIT, "Default framesync (0x%x) = 0x%x\n",
 		rOFDM0_RxDetector3, priv->framesync);
 
 	/* Read SIFS (save the value read fome MACPHY_REG.txt) */
@@ -1101,7 +1099,7 @@ bool rtl8192_SetRFPowerState(struct net_device *dev,
 	if (eRFPowerState == priv->ieee80211->eRFPowerState)
 		return false;
 
-	if (priv->SetRFPowerStateInProgress == true)
+	if (priv->SetRFPowerStateInProgress)
 		return false;
 
 	priv->SetRFPowerStateInProgress = true;
@@ -1187,7 +1185,7 @@ bool rtl8192_SetRFPowerState(struct net_device *dev,
 				/* Turn on RF we are still linked, which might
 				   happen when we quickly turn off and on HW RF.
 				 */
-				if (pMgntInfo->bMediaConnect == TRUE)
+				if (pMgntInfo->bMediaConnect)
 					Adapter->HalFunc.LedControlHandler(Adapter, LED_CTL_LINK);
 				else
 					/* Turn off LED if RF is not ON. */
@@ -1344,7 +1342,6 @@ static u8 rtl8192_phy_SwChnlStepByStep(struct net_device *dev, u8 channel,
 	default:
 		RT_TRACE(COMP_ERR, "Unknown RFChipID: %d\n", priv->rf_chip);
 		return true;
-		break;
 	}
 
 
@@ -1365,11 +1362,10 @@ static u8 rtl8192_phy_SwChnlStepByStep(struct net_device *dev, u8 channel,
 			if ((*stage) == 2) {
 				(*delay) = CurrentCmd->msDelay;
 				return true;
-			} else {
-				(*stage)++;
-				(*step) = 0;
-				continue;
 			}
+			(*stage)++;
+			(*step) = 0;
+			continue;
 		}
 
 		switch (CurrentCmd->CmdID) {
@@ -1579,10 +1575,10 @@ void rtl8192_SetBWModeWorkItem(struct net_device *dev)
 			 priv->cck_present_attentuation);
 
 		if (priv->chan == 14 && !priv->bcck_in_ch14) {
-			priv->bcck_in_ch14 = TRUE;
+			priv->bcck_in_ch14 = true;
 			dm_cck_txpower_adjust(dev, priv->bcck_in_ch14);
 		} else if (priv->chan != 14 && priv->bcck_in_ch14) {
-			priv->bcck_in_ch14 = FALSE;
+			priv->bcck_in_ch14 = false;
 			dm_cck_txpower_adjust(dev, priv->bcck_in_ch14);
 		} else {
 			dm_cck_txpower_adjust(dev, priv->bcck_in_ch14);
@@ -1746,13 +1742,13 @@ void InitialGainOperateWorkItemCallBack(struct work_struct *work)
 		RT_TRACE(COMP_SCAN, "Scan InitialGainBackup 0xa0a is %x\n",
 			 priv->initgain_backup.cca);
 
-		RT_TRACE(COMP_SCAN, "Write scan initial gain = 0x%x \n",
+		RT_TRACE(COMP_SCAN, "Write scan initial gain = 0x%x\n",
 			 initial_gain);
 		write_nic_byte(dev, rOFDM0_XAAGCCore1, initial_gain);
 		write_nic_byte(dev, rOFDM0_XBAGCCore1, initial_gain);
 		write_nic_byte(dev, rOFDM0_XCAGCCore1, initial_gain);
 		write_nic_byte(dev, rOFDM0_XDAGCCore1, initial_gain);
-		RT_TRACE(COMP_SCAN, "Write scan 0xa0a = 0x%x \n",
+		RT_TRACE(COMP_SCAN, "Write scan 0xa0a = 0x%x\n",
 			 POWER_DETECTION_TH);
 		write_nic_byte(dev, 0xa0a, POWER_DETECTION_TH);
 		break;
@@ -1793,7 +1789,7 @@ void InitialGainOperateWorkItemCallBack(struct work_struct *work)
 			rtl8192_setBBreg(dev, UFWP, bMaskByte1, 0x1);
 		break;
 	default:
-		RT_TRACE(COMP_SCAN, "Unknown IG Operation. \n");
+		RT_TRACE(COMP_SCAN, "Unknown IG Operation.\n");
 		break;
 	}
 }
diff --git a/drivers/staging/rtl8712/hal_init.c b/drivers/staging/rtl8712/hal_init.c
index 324da34..0a1c631 100644
--- a/drivers/staging/rtl8712/hal_init.c
+++ b/drivers/staging/rtl8712/hal_init.c
@@ -92,7 +92,7 @@ static u32 rtl871x_open_fw(struct _adapter *padapter, const u8 **ppmappedfw)
 
 static void fill_fwpriv(struct _adapter *padapter, struct fw_priv *pfwpriv)
 {
-	struct dvobj_priv *pdvobj = (struct dvobj_priv *)&padapter->dvobjpriv;
+	struct dvobj_priv *pdvobj = &padapter->dvobjpriv;
 	struct registry_priv *pregpriv = &padapter->registrypriv;
 
 	memset(pfwpriv, 0, sizeof(struct fw_priv));
diff --git a/drivers/staging/rtl8712/mlme_linux.c b/drivers/staging/rtl8712/mlme_linux.c
index 354bd03..8c5a475 100644
--- a/drivers/staging/rtl8712/mlme_linux.c
+++ b/drivers/staging/rtl8712/mlme_linux.c
@@ -32,60 +32,61 @@
 #include "drv_types.h"
 #include "mlme_osdep.h"
 
-static void sitesurvey_ctrl_handler(void *FunctionContext)
+static void sitesurvey_ctrl_handler(unsigned long data)
 {
-	struct _adapter *adapter = (struct _adapter *)FunctionContext;
+	struct _adapter *adapter = (struct _adapter *)data;
 
 	_r8712_sitesurvey_ctrl_handler(adapter);
-	_set_timer(&adapter->mlmepriv.sitesurveyctrl.sitesurvey_ctrl_timer,
-		   3000);
+	mod_timer(&adapter->mlmepriv.sitesurveyctrl.sitesurvey_ctrl_timer,
+		  jiffies + msecs_to_jiffies(3000));
 }
 
-static void join_timeout_handler (void *FunctionContext)
+static void join_timeout_handler (unsigned long data)
 {
-	struct _adapter *adapter = (struct _adapter *)FunctionContext;
+	struct _adapter *adapter = (struct _adapter *)data;
 
 	_r8712_join_timeout_handler(adapter);
 }
 
-static void _scan_timeout_handler (void *FunctionContext)
+static void _scan_timeout_handler (unsigned long data)
 {
-	struct _adapter *adapter = (struct _adapter *)FunctionContext;
+	struct _adapter *adapter = (struct _adapter *)data;
 
 	r8712_scan_timeout_handler(adapter);
 }
 
-static void dhcp_timeout_handler (void *FunctionContext)
+static void dhcp_timeout_handler (unsigned long data)
 {
-	struct _adapter *adapter = (struct _adapter *)FunctionContext;
+	struct _adapter *adapter = (struct _adapter *)data;
 
 	_r8712_dhcp_timeout_handler(adapter);
 }
 
-static void wdg_timeout_handler (void *FunctionContext)
+static void wdg_timeout_handler (unsigned long data)
 {
-	struct _adapter *adapter = (struct _adapter *)FunctionContext;
+	struct _adapter *adapter = (struct _adapter *)data;
 
 	_r8712_wdg_timeout_handler(adapter);
 
-	_set_timer(&adapter->mlmepriv.wdg_timer, 2000);
+	mod_timer(&adapter->mlmepriv.wdg_timer,
+		  jiffies + msecs_to_jiffies(2000));
 }
 
 void r8712_init_mlme_timer(struct _adapter *padapter)
 {
 	struct	mlme_priv *pmlmepriv = &padapter->mlmepriv;
 
-	_init_timer(&(pmlmepriv->assoc_timer), padapter->pnetdev,
-		    join_timeout_handler, (pmlmepriv->nic_hdl));
-	_init_timer(&(pmlmepriv->sitesurveyctrl.sitesurvey_ctrl_timer),
-		    padapter->pnetdev, sitesurvey_ctrl_handler,
-		    (u8 *)(pmlmepriv->nic_hdl));
-	_init_timer(&(pmlmepriv->scan_to_timer), padapter->pnetdev,
-		    _scan_timeout_handler, (pmlmepriv->nic_hdl));
-	_init_timer(&(pmlmepriv->dhcp_timer), padapter->pnetdev,
-		    dhcp_timeout_handler, (u8 *)(pmlmepriv->nic_hdl));
-	_init_timer(&(pmlmepriv->wdg_timer), padapter->pnetdev,
-		    wdg_timeout_handler, (u8 *)(pmlmepriv->nic_hdl));
+	setup_timer(&pmlmepriv->assoc_timer, join_timeout_handler,
+		    (unsigned long)padapter);
+	setup_timer(&pmlmepriv->sitesurveyctrl.sitesurvey_ctrl_timer,
+		    sitesurvey_ctrl_handler,
+		    (unsigned long)padapter);
+	setup_timer(&pmlmepriv->scan_to_timer, _scan_timeout_handler,
+		    (unsigned long)padapter);
+	setup_timer(&pmlmepriv->dhcp_timer, dhcp_timeout_handler,
+		    (unsigned long)padapter);
+	setup_timer(&pmlmepriv->wdg_timer, wdg_timeout_handler,
+		    (unsigned long)padapter);
 }
 
 void r8712_os_indicate_connect(struct _adapter *adapter)
@@ -117,9 +118,9 @@ void r8712_os_indicate_disconnect(struct _adapter *adapter)
 					   btkip_countermeasure;
 		memset((unsigned char *)&adapter->securitypriv, 0,
 			 sizeof(struct security_priv));
-		_init_timer(&(adapter->securitypriv.tkip_timer),
-			    adapter->pnetdev, r8712_use_tkipkey_handler,
-			    adapter);
+		setup_timer(&adapter->securitypriv.tkip_timer,
+			    r8712_use_tkipkey_handler,
+			    (unsigned long)adapter);
 		/* Restore the PMK information to securitypriv structure
 		 * for the following connection. */
 		memcpy(&adapter->securitypriv.PMKIDList[0],
diff --git a/drivers/staging/rtl8712/os_intfs.c b/drivers/staging/rtl8712/os_intfs.c
index 13debb5..6e776e5 100644
--- a/drivers/staging/rtl8712/os_intfs.c
+++ b/drivers/staging/rtl8712/os_intfs.c
@@ -177,7 +177,7 @@ static uint loadparam(struct _adapter *padapter, struct  net_device *pnetdev)
 
 static int r871x_net_set_mac_address(struct net_device *pnetdev, void *p)
 {
-	struct _adapter *padapter = (struct _adapter *)netdev_priv(pnetdev);
+	struct _adapter *padapter = netdev_priv(pnetdev);
 	struct sockaddr *addr = p;
 
 	if (padapter->bup == false)
@@ -187,7 +187,7 @@ static int r871x_net_set_mac_address(struct net_device *pnetdev, void *p)
 
 static struct net_device_stats *r871x_net_get_stats(struct net_device *pnetdev)
 {
-	struct _adapter *padapter = (struct _adapter *) netdev_priv(pnetdev);
+	struct _adapter *padapter = netdev_priv(pnetdev);
 	struct xmit_priv *pxmitpriv = &(padapter->xmitpriv);
 	struct recv_priv *precvpriv = &(padapter->recvpriv);
 
@@ -221,7 +221,7 @@ struct net_device *r8712_init_netdev(void)
 		strcpy(ifname, "wlan%d");
 		dev_alloc_name(pnetdev, ifname);
 	}
-	padapter = (struct _adapter *) netdev_priv(pnetdev);
+	padapter = netdev_priv(pnetdev);
 	padapter->pnetdev = pnetdev;
 	pr_info("r8712u: register rtl8712_netdev_ops to netdev_ops\n");
 	pnetdev->netdev_ops = &rtl8712_netdev_ops;
@@ -255,20 +255,20 @@ void r8712_stop_drv_threads(struct _adapter *padapter)
 
 static void start_drv_timers(struct _adapter *padapter)
 {
-	_set_timer(&padapter->mlmepriv.sitesurveyctrl.sitesurvey_ctrl_timer,
-		   5000);
-	_set_timer(&padapter->mlmepriv.wdg_timer, 2000);
+	mod_timer(&padapter->mlmepriv.sitesurveyctrl.sitesurvey_ctrl_timer,
+		  jiffies + msecs_to_jiffies(5000));
+	mod_timer(&padapter->mlmepriv.wdg_timer,
+		  jiffies + msecs_to_jiffies(2000));
 }
 
 void r8712_stop_drv_timers(struct _adapter *padapter)
 {
-	_cancel_timer_ex(&padapter->mlmepriv.assoc_timer);
-	_cancel_timer_ex(&padapter->securitypriv.tkip_timer);
-	_cancel_timer_ex(&padapter->mlmepriv.scan_to_timer);
-	_cancel_timer_ex(&padapter->mlmepriv.dhcp_timer);
-	_cancel_timer_ex(&padapter->mlmepriv.wdg_timer);
-	_cancel_timer_ex(&padapter->mlmepriv.sitesurveyctrl.
-			 sitesurvey_ctrl_timer);
+	del_timer_sync(&padapter->mlmepriv.assoc_timer);
+	del_timer_sync(&padapter->securitypriv.tkip_timer);
+	del_timer_sync(&padapter->mlmepriv.scan_to_timer);
+	del_timer_sync(&padapter->mlmepriv.dhcp_timer);
+	del_timer_sync(&padapter->mlmepriv.wdg_timer);
+	del_timer_sync(&padapter->mlmepriv.sitesurveyctrl.sitesurvey_ctrl_timer);
 }
 
 static u8 init_default_value(struct _adapter *padapter)
@@ -322,8 +322,8 @@ u8 r8712_init_drv_sw(struct _adapter *padapter)
 	_r8712_init_recv_priv(&padapter->recvpriv, padapter);
 	memset((unsigned char *)&padapter->securitypriv, 0,
 	       sizeof(struct security_priv));
-	_init_timer(&(padapter->securitypriv.tkip_timer), padapter->pnetdev,
-		    r8712_use_tkipkey_handler, padapter);
+	setup_timer(&padapter->securitypriv.tkip_timer,
+		    r8712_use_tkipkey_handler, (unsigned long)padapter);
 	_r8712_init_sta_priv(&padapter->stapriv);
 	padapter->stapriv.padapter = padapter;
 	r8712_init_bcmc_stainfo(padapter);
@@ -384,7 +384,7 @@ static void enable_video_mode(struct _adapter *padapter, int cbw40_value)
  */
 static int netdev_open(struct net_device *pnetdev)
 {
-	struct _adapter *padapter = (struct _adapter *)netdev_priv(pnetdev);
+	struct _adapter *padapter = netdev_priv(pnetdev);
 
 	mutex_lock(&padapter->mutex_start);
 	if (padapter->bup == false) {
@@ -452,7 +452,7 @@ netdev_open_error:
  */
 static int netdev_close(struct net_device *pnetdev)
 {
-	struct _adapter *padapter = (struct _adapter *) netdev_priv(pnetdev);
+	struct _adapter *padapter = netdev_priv(pnetdev);
 
 	/* Close LED*/
 	padapter->ledpriv.LedControlHandler(padapter, LED_CTL_POWER_OFF);
diff --git a/drivers/staging/rtl8712/osdep_service.h b/drivers/staging/rtl8712/osdep_service.h
index 36348d9..0a7f58c 100644
--- a/drivers/staging/rtl8712/osdep_service.h
+++ b/drivers/staging/rtl8712/osdep_service.h
@@ -60,26 +60,6 @@ struct	__queue	{
 #define LIST_CONTAINOR(ptr, type, member) \
 	((type *)((char *)(ptr)-(SIZE_T)(&((type *)0)->member)))
 
-static inline void _init_timer(struct timer_list *ptimer,
-			       struct  net_device *padapter,
-			       void *pfunc, void *cntx)
-{
-	ptimer->function = pfunc;
-	ptimer->data = (addr_t)cntx;
-	init_timer(ptimer);
-}
-
-static inline void _set_timer(struct timer_list *ptimer, u32 delay_time)
-{
-	mod_timer(ptimer, (jiffies+msecs_to_jiffies(delay_time)));
-}
-
-static inline void _cancel_timer(struct timer_list *ptimer, u8 *bcancelled)
-{
-	del_timer(ptimer);
-	*bcancelled = true; /*true ==1; false==0*/
-}
-
 #ifndef BIT
 	#define BIT(x)	(1 << (x))
 #endif
@@ -106,11 +86,6 @@ static inline void sleep_schedulable(int ms)
 	schedule_timeout(delta);
 }
 
-static inline unsigned char _cancel_timer_ex(struct timer_list *ptimer)
-{
-	return del_timer(ptimer);
-}
-
 static inline void flush_signals_thread(void)
 {
 	if (signal_pending(current))
diff --git a/drivers/staging/rtl8712/recv_linux.c b/drivers/staging/rtl8712/recv_linux.c
index 409c8c8..799a0f9 100644
--- a/drivers/staging/rtl8712/recv_linux.c
+++ b/drivers/staging/rtl8712/recv_linux.c
@@ -96,7 +96,7 @@ void r8712_handle_tkip_mic_err(struct _adapter *padapter, u8 bgroup)
 	else
 		ev.flags |= IW_MICFAILURE_PAIRWISE;
 	ev.src_addr.sa_family = ARPHRD_ETHER;
-	memcpy(ev.src_addr.sa_data, &pmlmepriv->assoc_bssid[0], ETH_ALEN);
+	ether_addr_copy(ev.src_addr.sa_data, &pmlmepriv->assoc_bssid[0]);
 	memset(&wrqu, 0x00, sizeof(wrqu));
 	wrqu.data.length = sizeof(ev);
 	wireless_send_event(padapter->pnetdev, IWEVMICHAELMICFAILURE, &wrqu,
@@ -137,18 +137,17 @@ _recv_indicatepkt_drop:
 	 precvpriv->rx_drop++;
 }
 
-static void _r8712_reordering_ctrl_timeout_handler (void *FunctionContext)
+static void _r8712_reordering_ctrl_timeout_handler (unsigned long data)
 {
 	struct recv_reorder_ctrl *preorder_ctrl =
-			 (struct recv_reorder_ctrl *)FunctionContext;
+			 (struct recv_reorder_ctrl *)data;
 
 	r8712_reordering_ctrl_timeout_handler(preorder_ctrl);
 }
 
 void r8712_init_recv_timer(struct recv_reorder_ctrl *preorder_ctrl)
 {
-	struct _adapter *padapter = preorder_ctrl->padapter;
-
-	_init_timer(&(preorder_ctrl->reordering_ctrl_timer), padapter->pnetdev,
-		    _r8712_reordering_ctrl_timeout_handler, preorder_ctrl);
+	setup_timer(&preorder_ctrl->reordering_ctrl_timer,
+		     _r8712_reordering_ctrl_timeout_handler,
+		     (unsigned long)preorder_ctrl);
 }
diff --git a/drivers/staging/rtl8712/rtl8712_cmd.c b/drivers/staging/rtl8712/rtl8712_cmd.c
index 62e53cc..007f0a3 100644
--- a/drivers/staging/rtl8712/rtl8712_cmd.c
+++ b/drivers/staging/rtl8712/rtl8712_cmd.c
@@ -95,7 +95,7 @@ static void query_fw_rx_phy_status(struct _adapter *padapter)
 			val32 = r8712_read32(padapter, IOCMD_DATA_REG);
 		else /* time out */
 			val32 = 0;
-		val32 = val32 >> 4;
+		val32 >>= 4;
 		padapter->recvpriv.fw_rssi =
 			 (u8)r8712_signal_scale_mapping(val32);
 	}
diff --git a/drivers/staging/rtl8712/rtl8712_led.c b/drivers/staging/rtl8712/rtl8712_led.c
index 56e8add..f1d47a0 100644
--- a/drivers/staging/rtl8712/rtl8712_led.c
+++ b/drivers/staging/rtl8712/rtl8712_led.c
@@ -97,7 +97,8 @@ static void InitLed871x(struct _adapter *padapter, struct LED_871x *pLed,
 	pLed->bLedBlinkInProgress = false;
 	pLed->BlinkTimes = 0;
 	pLed->BlinkingLedState = LED_UNKNOWN;
-	_init_timer(&(pLed->BlinkTimer), nic, BlinkTimerCallback, pLed);
+	setup_timer(&pLed->BlinkTimer, BlinkTimerCallback,
+		    (unsigned long)pLed);
 	INIT_WORK(&pLed->BlinkWorkItem, BlinkWorkItemCallback);
 }
 
@@ -107,7 +108,7 @@ static void InitLed871x(struct _adapter *padapter, struct LED_871x *pLed,
  */
 static void DeInitLed871x(struct LED_871x *pLed)
 {
-	_cancel_timer_ex(&(pLed->BlinkTimer));
+	del_timer_sync(&pLed->BlinkTimer);
 	/* We should reset bLedBlinkInProgress if we cancel
 	 * the LedControlTimer, */
 	pLed->bLedBlinkInProgress = false;
@@ -258,21 +259,21 @@ static void SwLedBlink(struct LED_871x *pLed)
 		/* Schedule a timer to toggle LED state. */
 		switch (pLed->CurrLedState) {
 		case LED_BLINK_NORMAL:
-			_set_timer(&(pLed->BlinkTimer),
-				   LED_BLINK_NORMAL_INTERVAL);
+			mod_timer(&pLed->BlinkTimer, jiffies +
+				  msecs_to_jiffies(LED_BLINK_NORMAL_INTERVAL));
 			break;
 		case LED_BLINK_SLOWLY:
 		case LED_BLINK_StartToBlink:
-			_set_timer(&(pLed->BlinkTimer),
-				   LED_BLINK_SLOWLY_INTERVAL);
+			mod_timer(&pLed->BlinkTimer, jiffies +
+				  msecs_to_jiffies(LED_BLINK_SLOWLY_INTERVAL));
 			break;
 		case LED_BLINK_WPS:
-			_set_timer(&(pLed->BlinkTimer),
-					LED_BLINK_LONG_INTERVAL);
+			mod_timer(&pLed->BlinkTimer, jiffies +
+				  msecs_to_jiffies(LED_BLINK_LONG_INTERVAL));
 			break;
 		default:
-			_set_timer(&(pLed->BlinkTimer),
-				   LED_BLINK_SLOWLY_INTERVAL);
+			mod_timer(&pLed->BlinkTimer, jiffies +
+				  msecs_to_jiffies(LED_BLINK_SLOWLY_INTERVAL));
 			break;
 		}
 	}
@@ -315,16 +316,16 @@ static void SwLedBlink1(struct LED_871x *pLed)
 			pLed->BlinkingLedState = LED_OFF;
 		else
 			pLed->BlinkingLedState = LED_ON;
-		_set_timer(&(pLed->BlinkTimer),
-			   LED_BLINK_NO_LINK_INTERVAL_ALPHA);
+		mod_timer(&pLed->BlinkTimer, jiffies +
+			  msecs_to_jiffies(LED_BLINK_NO_LINK_INTERVAL_ALPHA));
 		break;
 	case LED_BLINK_NORMAL:
 		if (pLed->bLedOn)
 			pLed->BlinkingLedState = LED_OFF;
 		else
 			pLed->BlinkingLedState = LED_ON;
-		_set_timer(&(pLed->BlinkTimer),
-			   LED_BLINK_LINK_INTERVAL_ALPHA);
+		mod_timer(&pLed->BlinkTimer, jiffies +
+			  msecs_to_jiffies(LED_BLINK_LINK_INTERVAL_ALPHA));
 		break;
 	case LED_SCAN_BLINK:
 		pLed->BlinkTimes--;
@@ -338,8 +339,8 @@ static void SwLedBlink1(struct LED_871x *pLed)
 					pLed->BlinkingLedState = LED_OFF;
 				else
 					pLed->BlinkingLedState = LED_ON;
-				_set_timer(&(pLed->BlinkTimer),
-					   LED_BLINK_LINK_INTERVAL_ALPHA);
+				mod_timer(&pLed->BlinkTimer, jiffies +
+					  msecs_to_jiffies(LED_BLINK_LINK_INTERVAL_ALPHA));
 			} else if (!check_fwstate(pmlmepriv, _FW_LINKED)) {
 				pLed->bLedNoLinkBlinkInProgress = true;
 				pLed->CurrLedState = LED_BLINK_SLOWLY;
@@ -347,8 +348,8 @@ static void SwLedBlink1(struct LED_871x *pLed)
 					pLed->BlinkingLedState = LED_OFF;
 				else
 					pLed->BlinkingLedState = LED_ON;
-				_set_timer(&(pLed->BlinkTimer),
-					   LED_BLINK_NO_LINK_INTERVAL_ALPHA);
+				mod_timer(&pLed->BlinkTimer, jiffies +
+					  msecs_to_jiffies(LED_BLINK_NO_LINK_INTERVAL_ALPHA));
 			}
 			pLed->bLedScanBlinkInProgress = false;
 		} else {
@@ -356,8 +357,8 @@ static void SwLedBlink1(struct LED_871x *pLed)
 				pLed->BlinkingLedState = LED_OFF;
 			else
 				pLed->BlinkingLedState = LED_ON;
-			_set_timer(&(pLed->BlinkTimer),
-				   LED_BLINK_SCAN_INTERVAL_ALPHA);
+			mod_timer(&pLed->BlinkTimer, jiffies +
+				  msecs_to_jiffies(LED_BLINK_SCAN_INTERVAL_ALPHA));
 		}
 		break;
 	case LED_TXRX_BLINK:
@@ -372,8 +373,8 @@ static void SwLedBlink1(struct LED_871x *pLed)
 					pLed->BlinkingLedState = LED_OFF;
 				else
 					pLed->BlinkingLedState = LED_ON;
-				_set_timer(&(pLed->BlinkTimer),
-					   LED_BLINK_LINK_INTERVAL_ALPHA);
+				mod_timer(&pLed->BlinkTimer, jiffies +
+					  msecs_to_jiffies(LED_BLINK_LINK_INTERVAL_ALPHA));
 			} else if (!check_fwstate(pmlmepriv, _FW_LINKED)) {
 				pLed->bLedNoLinkBlinkInProgress = true;
 				pLed->CurrLedState = LED_BLINK_SLOWLY;
@@ -381,8 +382,8 @@ static void SwLedBlink1(struct LED_871x *pLed)
 					pLed->BlinkingLedState = LED_OFF;
 				else
 					pLed->BlinkingLedState = LED_ON;
-				_set_timer(&(pLed->BlinkTimer),
-					   LED_BLINK_NO_LINK_INTERVAL_ALPHA);
+				mod_timer(&pLed->BlinkTimer, jiffies +
+					  msecs_to_jiffies(LED_BLINK_NO_LINK_INTERVAL_ALPHA));
 			}
 			pLed->BlinkTimes = 0;
 			pLed->bLedBlinkInProgress = false;
@@ -391,8 +392,8 @@ static void SwLedBlink1(struct LED_871x *pLed)
 				pLed->BlinkingLedState = LED_OFF;
 			else
 				pLed->BlinkingLedState = LED_ON;
-			_set_timer(&(pLed->BlinkTimer),
-				   LED_BLINK_FASTER_INTERVAL_ALPHA);
+			mod_timer(&pLed->BlinkTimer, jiffies +
+				  msecs_to_jiffies(LED_BLINK_FASTER_INTERVAL_ALPHA));
 		}
 		break;
 	case LED_BLINK_WPS:
@@ -400,14 +401,14 @@ static void SwLedBlink1(struct LED_871x *pLed)
 			pLed->BlinkingLedState = LED_OFF;
 		else
 			pLed->BlinkingLedState = LED_ON;
-		_set_timer(&(pLed->BlinkTimer),
-			   LED_BLINK_SCAN_INTERVAL_ALPHA);
+		mod_timer(&pLed->BlinkTimer, jiffies +
+			  msecs_to_jiffies(LED_BLINK_SCAN_INTERVAL_ALPHA));
 		break;
 	case LED_BLINK_WPS_STOP:	/* WPS success */
 		if (pLed->BlinkingLedState == LED_ON) {
 			pLed->BlinkingLedState = LED_OFF;
-			_set_timer(&(pLed->BlinkTimer),
-				   LED_BLINK_WPS_SUCESS_INTERVAL_ALPHA);
+			mod_timer(&pLed->BlinkTimer, jiffies +
+				  msecs_to_jiffies(LED_BLINK_WPS_SUCESS_INTERVAL_ALPHA));
 			bStopBlinking = false;
 		} else
 			bStopBlinking = true;
@@ -418,8 +419,8 @@ static void SwLedBlink1(struct LED_871x *pLed)
 				pLed->BlinkingLedState = LED_OFF;
 			else
 				pLed->BlinkingLedState = LED_ON;
-			_set_timer(&(pLed->BlinkTimer),
-				   LED_BLINK_LINK_INTERVAL_ALPHA);
+			mod_timer(&pLed->BlinkTimer, jiffies +
+				  msecs_to_jiffies(LED_BLINK_LINK_INTERVAL_ALPHA));
 		}
 		pLed->bLedWPSBlinkInProgress = false;
 		break;
@@ -460,8 +461,8 @@ static void SwLedBlink2(struct LED_871x *pLed)
 				pLed->BlinkingLedState = LED_OFF;
 			else
 				pLed->BlinkingLedState = LED_ON;
-			_set_timer(&(pLed->BlinkTimer),
-				   LED_BLINK_SCAN_INTERVAL_ALPHA);
+			mod_timer(&pLed->BlinkTimer, jiffies +
+				  msecs_to_jiffies(LED_BLINK_SCAN_INTERVAL_ALPHA));
 		}
 		break;
 	case LED_TXRX_BLINK:
@@ -484,8 +485,8 @@ static void SwLedBlink2(struct LED_871x *pLed)
 				pLed->BlinkingLedState = LED_OFF;
 			else
 				pLed->BlinkingLedState = LED_ON;
-			_set_timer(&(pLed->BlinkTimer),
-				   LED_BLINK_FASTER_INTERVAL_ALPHA);
+			mod_timer(&pLed->BlinkTimer, jiffies +
+				  msecs_to_jiffies(LED_BLINK_FASTER_INTERVAL_ALPHA));
 		}
 		break;
 	default:
@@ -528,8 +529,8 @@ static void SwLedBlink3(struct LED_871x *pLed)
 				pLed->BlinkingLedState = LED_OFF;
 			else
 				pLed->BlinkingLedState = LED_ON;
-			_set_timer(&(pLed->BlinkTimer),
-				   LED_BLINK_SCAN_INTERVAL_ALPHA);
+			mod_timer(&pLed->BlinkTimer, jiffies +
+				  msecs_to_jiffies(LED_BLINK_SCAN_INTERVAL_ALPHA));
 		}
 		break;
 	case LED_TXRX_BLINK:
@@ -554,8 +555,8 @@ static void SwLedBlink3(struct LED_871x *pLed)
 				pLed->BlinkingLedState = LED_OFF;
 			else
 				pLed->BlinkingLedState = LED_ON;
-			_set_timer(&(pLed->BlinkTimer),
-				   LED_BLINK_FASTER_INTERVAL_ALPHA);
+			mod_timer(&pLed->BlinkTimer, jiffies +
+				  msecs_to_jiffies(LED_BLINK_FASTER_INTERVAL_ALPHA));
 		}
 		break;
 	case LED_BLINK_WPS:
@@ -563,14 +564,14 @@ static void SwLedBlink3(struct LED_871x *pLed)
 			pLed->BlinkingLedState = LED_OFF;
 		else
 			pLed->BlinkingLedState = LED_ON;
-		_set_timer(&(pLed->BlinkTimer),
-			   LED_BLINK_SCAN_INTERVAL_ALPHA);
+		mod_timer(&pLed->BlinkTimer, jiffies +
+			  msecs_to_jiffies(LED_BLINK_SCAN_INTERVAL_ALPHA));
 		break;
 	case LED_BLINK_WPS_STOP:	/*WPS success*/
 		if (pLed->BlinkingLedState == LED_ON) {
 			pLed->BlinkingLedState = LED_OFF;
-			_set_timer(&(pLed->BlinkTimer),
-				   LED_BLINK_WPS_SUCESS_INTERVAL_ALPHA);
+			mod_timer(&pLed->BlinkTimer, jiffies +
+				  msecs_to_jiffies(LED_BLINK_WPS_SUCESS_INTERVAL_ALPHA));
 			bStopBlinking = false;
 		} else
 			bStopBlinking = true;
@@ -610,18 +611,18 @@ static void SwLedBlink4(struct LED_871x *pLed)
 			pLed->BlinkingLedState = LED_OFF;
 		else
 			pLed->BlinkingLedState = LED_ON;
-		_set_timer(&(pLed->BlinkTimer),
-			   LED_BLINK_NO_LINK_INTERVAL_ALPHA);
+		mod_timer(&pLed->BlinkTimer, jiffies +
+			  msecs_to_jiffies(LED_BLINK_NO_LINK_INTERVAL_ALPHA));
 		break;
 	case LED_BLINK_StartToBlink:
 		if (pLed->bLedOn) {
 			pLed->BlinkingLedState = LED_OFF;
-			_set_timer(&(pLed->BlinkTimer),
-				   LED_BLINK_SLOWLY_INTERVAL);
+			mod_timer(&pLed->BlinkTimer, jiffies +
+				  msecs_to_jiffies(LED_BLINK_SLOWLY_INTERVAL));
 		} else {
 			pLed->BlinkingLedState = LED_ON;
-			_set_timer(&(pLed->BlinkTimer),
-				   LED_BLINK_NORMAL_INTERVAL);
+			mod_timer(&pLed->BlinkTimer, jiffies +
+				  msecs_to_jiffies(LED_BLINK_NORMAL_INTERVAL));
 		}
 		break;
 	case LED_SCAN_BLINK:
@@ -635,16 +636,16 @@ static void SwLedBlink4(struct LED_871x *pLed)
 				pLed->BlinkingLedState = LED_OFF;
 			else
 				pLed->BlinkingLedState = LED_ON;
-			_set_timer(&(pLed->BlinkTimer),
-				   LED_BLINK_NO_LINK_INTERVAL_ALPHA);
+			mod_timer(&pLed->BlinkTimer, jiffies +
+				  msecs_to_jiffies(LED_BLINK_NO_LINK_INTERVAL_ALPHA));
 			pLed->bLedScanBlinkInProgress = false;
 		} else {
 			if (pLed->bLedOn)
 				pLed->BlinkingLedState = LED_OFF;
 			else
 				pLed->BlinkingLedState = LED_ON;
-			_set_timer(&(pLed->BlinkTimer),
-				   LED_BLINK_SCAN_INTERVAL_ALPHA);
+			mod_timer(&pLed->BlinkTimer, jiffies +
+				  msecs_to_jiffies(LED_BLINK_SCAN_INTERVAL_ALPHA));
 		}
 		break;
 	case LED_TXRX_BLINK:
@@ -658,27 +659,27 @@ static void SwLedBlink4(struct LED_871x *pLed)
 				pLed->BlinkingLedState = LED_OFF;
 			else
 				pLed->BlinkingLedState = LED_ON;
-			_set_timer(&(pLed->BlinkTimer),
-				   LED_BLINK_NO_LINK_INTERVAL_ALPHA);
+			mod_timer(&pLed->BlinkTimer, jiffies +
+				  msecs_to_jiffies(LED_BLINK_NO_LINK_INTERVAL_ALPHA));
 			pLed->bLedBlinkInProgress = false;
 		} else {
 			 if (pLed->bLedOn)
 				pLed->BlinkingLedState = LED_OFF;
 			else
 				pLed->BlinkingLedState = LED_ON;
-			_set_timer(&(pLed->BlinkTimer),
-				   LED_BLINK_FASTER_INTERVAL_ALPHA);
+			mod_timer(&pLed->BlinkTimer, jiffies +
+				  msecs_to_jiffies(LED_BLINK_FASTER_INTERVAL_ALPHA));
 		}
 		break;
 	case LED_BLINK_WPS:
 		if (pLed->bLedOn) {
 			pLed->BlinkingLedState = LED_OFF;
-			_set_timer(&(pLed->BlinkTimer),
-				   LED_BLINK_SLOWLY_INTERVAL);
+			mod_timer(&pLed->BlinkTimer, jiffies +
+				  msecs_to_jiffies(LED_BLINK_SLOWLY_INTERVAL));
 		} else {
 			pLed->BlinkingLedState = LED_ON;
-			_set_timer(&(pLed->BlinkTimer),
-				   LED_BLINK_NORMAL_INTERVAL);
+			mod_timer(&pLed->BlinkTimer, jiffies +
+				  msecs_to_jiffies(LED_BLINK_NORMAL_INTERVAL));
 		}
 		break;
 	case LED_BLINK_WPS_STOP:	/*WPS authentication fail*/
@@ -686,7 +687,8 @@ static void SwLedBlink4(struct LED_871x *pLed)
 			pLed->BlinkingLedState = LED_OFF;
 		else
 			pLed->BlinkingLedState = LED_ON;
-		_set_timer(&(pLed->BlinkTimer), LED_BLINK_NORMAL_INTERVAL);
+		mod_timer(&pLed->BlinkTimer, jiffies +
+			  msecs_to_jiffies(LED_BLINK_NORMAL_INTERVAL));
 		break;
 	case LED_BLINK_WPS_STOP_OVERLAP:	/*WPS session overlap */
 		pLed->BlinkTimes--;
@@ -699,15 +701,15 @@ static void SwLedBlink4(struct LED_871x *pLed)
 		if (bStopBlinking) {
 			pLed->BlinkTimes = 10;
 			pLed->BlinkingLedState = LED_ON;
-			_set_timer(&(pLed->BlinkTimer),
-				   LED_BLINK_LINK_INTERVAL_ALPHA);
+			mod_timer(&pLed->BlinkTimer, jiffies +
+				  msecs_to_jiffies(LED_BLINK_LINK_INTERVAL_ALPHA));
 		} else {
 			if (pLed->bLedOn)
 				pLed->BlinkingLedState = LED_OFF;
 			else
 				pLed->BlinkingLedState = LED_ON;
-			_set_timer(&(pLed->BlinkTimer),
-				   LED_BLINK_NORMAL_INTERVAL);
+			mod_timer(&pLed->BlinkTimer, jiffies +
+				  msecs_to_jiffies(LED_BLINK_NORMAL_INTERVAL));
 		}
 		break;
 	default:
@@ -734,16 +736,16 @@ static void SwLedBlink5(struct LED_871x *pLed)
 			pLed->CurrLedState = LED_ON;
 			pLed->BlinkingLedState = LED_ON;
 			if (!pLed->bLedOn)
-				_set_timer(&(pLed->BlinkTimer),
-					   LED_BLINK_FASTER_INTERVAL_ALPHA);
+				mod_timer(&pLed->BlinkTimer, jiffies +
+					  msecs_to_jiffies(LED_BLINK_FASTER_INTERVAL_ALPHA));
 			pLed->bLedScanBlinkInProgress = false;
 		} else {
 			if (pLed->bLedOn)
 				pLed->BlinkingLedState = LED_OFF;
 			else
 				pLed->BlinkingLedState = LED_ON;
-			_set_timer(&(pLed->BlinkTimer),
-				   LED_BLINK_SCAN_INTERVAL_ALPHA);
+			mod_timer(&pLed->BlinkTimer, jiffies +
+				  msecs_to_jiffies(LED_BLINK_SCAN_INTERVAL_ALPHA));
 		}
 		break;
 	case LED_TXRX_BLINK:
@@ -754,16 +756,16 @@ static void SwLedBlink5(struct LED_871x *pLed)
 			pLed->CurrLedState = LED_ON;
 			pLed->BlinkingLedState = LED_ON;
 			if (!pLed->bLedOn)
-				_set_timer(&(pLed->BlinkTimer),
-					   LED_BLINK_FASTER_INTERVAL_ALPHA);
+				mod_timer(&pLed->BlinkTimer, jiffies +
+					  msecs_to_jiffies(LED_BLINK_FASTER_INTERVAL_ALPHA));
 			pLed->bLedBlinkInProgress = false;
 		} else {
 			 if (pLed->bLedOn)
 				pLed->BlinkingLedState = LED_OFF;
 			else
 				pLed->BlinkingLedState = LED_ON;
-			_set_timer(&(pLed->BlinkTimer),
-				   LED_BLINK_FASTER_INTERVAL_ALPHA);
+			mod_timer(&pLed->BlinkTimer, jiffies +
+				  msecs_to_jiffies(LED_BLINK_FASTER_INTERVAL_ALPHA));
 		}
 		break;
 	default:
@@ -797,8 +799,8 @@ static void SwLedBlink6(struct LED_871x *pLed)
 				pLed->BlinkingLedState = LED_OFF;
 			else
 				pLed->BlinkingLedState = LED_ON;
-			_set_timer(&(pLed->BlinkTimer),
-				   LED_BLINK_FASTER_INTERVAL_ALPHA);
+			mod_timer(&pLed->BlinkTimer, jiffies +
+				  msecs_to_jiffies(LED_BLINK_FASTER_INTERVAL_ALPHA));
 		}
 		break;
 	case LED_BLINK_WPS:
@@ -806,7 +808,8 @@ static void SwLedBlink6(struct LED_871x *pLed)
 			pLed->BlinkingLedState = LED_OFF;
 		else
 			pLed->BlinkingLedState = LED_ON;
-		_set_timer(&(pLed->BlinkTimer), LED_BLINK_SCAN_INTERVAL_ALPHA);
+		mod_timer(&pLed->BlinkTimer, jiffies +
+			  msecs_to_jiffies(LED_BLINK_SCAN_INTERVAL_ALPHA));
 		break;
 
 	default:
@@ -895,11 +898,11 @@ static void SwLedControlMode1(struct _adapter *padapter,
 			  IS_LED_WPS_BLINKING(pLed))
 				return;
 			if (pLed->bLedLinkBlinkInProgress == true) {
-				_cancel_timer_ex(&(pLed->BlinkTimer));
+				del_timer_sync(&pLed->BlinkTimer);
 				pLed->bLedLinkBlinkInProgress = false;
 			}
 			if (pLed->bLedBlinkInProgress == true) {
-				_cancel_timer_ex(&(pLed->BlinkTimer));
+				del_timer_sync(&pLed->BlinkTimer);
 				pLed->bLedBlinkInProgress = false;
 			}
 			pLed->bLedNoLinkBlinkInProgress = true;
@@ -908,8 +911,8 @@ static void SwLedControlMode1(struct _adapter *padapter,
 				pLed->BlinkingLedState = LED_OFF;
 			else
 				pLed->BlinkingLedState = LED_ON;
-			_set_timer(&(pLed->BlinkTimer),
-				   LED_BLINK_NO_LINK_INTERVAL_ALPHA);
+			mod_timer(&pLed->BlinkTimer, jiffies +
+				  msecs_to_jiffies(LED_BLINK_NO_LINK_INTERVAL_ALPHA));
 		}
 		break;
 	case LED_CTL_LINK:
@@ -918,11 +921,11 @@ static void SwLedControlMode1(struct _adapter *padapter,
 			    IS_LED_WPS_BLINKING(pLed))
 				return;
 			if (pLed->bLedNoLinkBlinkInProgress == true) {
-				_cancel_timer_ex(&(pLed->BlinkTimer));
+				del_timer_sync(&pLed->BlinkTimer);
 				pLed->bLedNoLinkBlinkInProgress = false;
 			}
 			if (pLed->bLedBlinkInProgress == true) {
-				_cancel_timer_ex(&(pLed->BlinkTimer));
+				del_timer_sync(&pLed->BlinkTimer);
 				pLed->bLedBlinkInProgress = false;
 			}
 			pLed->bLedLinkBlinkInProgress = true;
@@ -931,8 +934,8 @@ static void SwLedControlMode1(struct _adapter *padapter,
 				pLed->BlinkingLedState = LED_OFF;
 			else
 				pLed->BlinkingLedState = LED_ON;
-			_set_timer(&(pLed->BlinkTimer),
-				   LED_BLINK_LINK_INTERVAL_ALPHA);
+			mod_timer(&pLed->BlinkTimer, jiffies +
+				  msecs_to_jiffies(LED_BLINK_LINK_INTERVAL_ALPHA));
 		}
 		break;
 	case LED_CTL_SITE_SURVEY:
@@ -943,15 +946,15 @@ static void SwLedControlMode1(struct _adapter *padapter,
 			if (IS_LED_WPS_BLINKING(pLed))
 				return;
 			if (pLed->bLedNoLinkBlinkInProgress == true) {
-				_cancel_timer_ex(&(pLed->BlinkTimer));
+				del_timer_sync(&pLed->BlinkTimer);
 				pLed->bLedNoLinkBlinkInProgress = false;
 			}
 			if (pLed->bLedLinkBlinkInProgress == true) {
-				_cancel_timer_ex(&(pLed->BlinkTimer));
+				del_timer_sync(&pLed->BlinkTimer);
 				 pLed->bLedLinkBlinkInProgress = false;
 			}
 			if (pLed->bLedBlinkInProgress == true) {
-				_cancel_timer_ex(&(pLed->BlinkTimer));
+				del_timer_sync(&pLed->BlinkTimer);
 				pLed->bLedBlinkInProgress = false;
 			}
 			pLed->bLedScanBlinkInProgress = true;
@@ -961,8 +964,8 @@ static void SwLedControlMode1(struct _adapter *padapter,
 				pLed->BlinkingLedState = LED_OFF;
 			else
 				pLed->BlinkingLedState = LED_ON;
-			_set_timer(&(pLed->BlinkTimer),
-				   LED_BLINK_SCAN_INTERVAL_ALPHA);
+			mod_timer(&pLed->BlinkTimer, jiffies +
+				  msecs_to_jiffies(LED_BLINK_SCAN_INTERVAL_ALPHA));
 		 }
 		break;
 	case LED_CTL_TX:
@@ -972,11 +975,11 @@ static void SwLedControlMode1(struct _adapter *padapter,
 			    IS_LED_WPS_BLINKING(pLed))
 				return;
 			if (pLed->bLedNoLinkBlinkInProgress == true) {
-				_cancel_timer_ex(&(pLed->BlinkTimer));
+				del_timer_sync(&pLed->BlinkTimer);
 				pLed->bLedNoLinkBlinkInProgress = false;
 			}
 			if (pLed->bLedLinkBlinkInProgress == true) {
-				_cancel_timer_ex(&(pLed->BlinkTimer));
+				del_timer_sync(&pLed->BlinkTimer);
 				pLed->bLedLinkBlinkInProgress = false;
 			}
 			pLed->bLedBlinkInProgress = true;
@@ -986,8 +989,8 @@ static void SwLedControlMode1(struct _adapter *padapter,
 				pLed->BlinkingLedState = LED_OFF;
 			else
 				pLed->BlinkingLedState = LED_ON;
-			_set_timer(&(pLed->BlinkTimer),
-				   LED_BLINK_FASTER_INTERVAL_ALPHA);
+			mod_timer(&pLed->BlinkTimer, jiffies +
+				  msecs_to_jiffies(LED_BLINK_FASTER_INTERVAL_ALPHA));
 		}
 		break;
 
@@ -995,19 +998,19 @@ static void SwLedControlMode1(struct _adapter *padapter,
 	case LED_CTL_START_WPS_BOTTON:
 		 if (pLed->bLedWPSBlinkInProgress == false) {
 			if (pLed->bLedNoLinkBlinkInProgress == true) {
-				_cancel_timer_ex(&(pLed->BlinkTimer));
+				del_timer_sync(&pLed->BlinkTimer);
 				pLed->bLedNoLinkBlinkInProgress = false;
 			}
 			if (pLed->bLedLinkBlinkInProgress == true) {
-				_cancel_timer_ex(&(pLed->BlinkTimer));
+				del_timer_sync(&pLed->BlinkTimer);
 				 pLed->bLedLinkBlinkInProgress = false;
 			}
 			if (pLed->bLedBlinkInProgress == true) {
-				_cancel_timer_ex(&(pLed->BlinkTimer));
+				del_timer_sync(&pLed->BlinkTimer);
 				pLed->bLedBlinkInProgress = false;
 			}
 			if (pLed->bLedScanBlinkInProgress == true) {
-				_cancel_timer_ex(&(pLed->BlinkTimer));
+				del_timer_sync(&pLed->BlinkTimer);
 				pLed->bLedScanBlinkInProgress = false;
 			}
 			pLed->bLedWPSBlinkInProgress = true;
@@ -1016,44 +1019,45 @@ static void SwLedControlMode1(struct _adapter *padapter,
 				pLed->BlinkingLedState = LED_OFF;
 			else
 				pLed->BlinkingLedState = LED_ON;
-			_set_timer(&(pLed->BlinkTimer),
-				   LED_BLINK_SCAN_INTERVAL_ALPHA);
+			mod_timer(&pLed->BlinkTimer, jiffies +
+				  msecs_to_jiffies(LED_BLINK_SCAN_INTERVAL_ALPHA));
 		}
 		break;
 	case LED_CTL_STOP_WPS:
 		if (pLed->bLedNoLinkBlinkInProgress == true) {
-			_cancel_timer_ex(&(pLed->BlinkTimer));
+			del_timer_sync(&pLed->BlinkTimer);
 			pLed->bLedNoLinkBlinkInProgress = false;
 		}
 		if (pLed->bLedLinkBlinkInProgress == true) {
-			_cancel_timer_ex(&(pLed->BlinkTimer));
+			del_timer_sync(&pLed->BlinkTimer);
 			 pLed->bLedLinkBlinkInProgress = false;
 		}
 		if (pLed->bLedBlinkInProgress == true) {
-			_cancel_timer_ex(&(pLed->BlinkTimer));
+			del_timer_sync(&pLed->BlinkTimer);
 			pLed->bLedBlinkInProgress = false;
 		}
 		if (pLed->bLedScanBlinkInProgress == true) {
-			_cancel_timer_ex(&(pLed->BlinkTimer));
+			del_timer_sync(&pLed->BlinkTimer);
 			pLed->bLedScanBlinkInProgress = false;
 		}
 		if (pLed->bLedWPSBlinkInProgress)
-			_cancel_timer_ex(&(pLed->BlinkTimer));
+			del_timer_sync(&pLed->BlinkTimer);
 		else
 			pLed->bLedWPSBlinkInProgress = true;
 		pLed->CurrLedState = LED_BLINK_WPS_STOP;
 		if (pLed->bLedOn) {
 			pLed->BlinkingLedState = LED_OFF;
-			_set_timer(&(pLed->BlinkTimer),
-				   LED_BLINK_WPS_SUCESS_INTERVAL_ALPHA);
+			mod_timer(&pLed->BlinkTimer, jiffies +
+				  msecs_to_jiffies(LED_BLINK_WPS_SUCESS_INTERVAL_ALPHA));
 		} else {
 			pLed->BlinkingLedState = LED_ON;
-			_set_timer(&(pLed->BlinkTimer), 0);
+			mod_timer(&pLed->BlinkTimer,
+				  jiffies + msecs_to_jiffies(0));
 		}
 		break;
 	case LED_CTL_STOP_WPS_FAIL:
 		if (pLed->bLedWPSBlinkInProgress) {
-			_cancel_timer_ex(&(pLed->BlinkTimer));
+			del_timer_sync(&pLed->BlinkTimer);
 			pLed->bLedWPSBlinkInProgress = false;
 		}
 		pLed->bLedNoLinkBlinkInProgress = true;
@@ -1062,33 +1066,34 @@ static void SwLedControlMode1(struct _adapter *padapter,
 			pLed->BlinkingLedState = LED_OFF;
 		else
 			pLed->BlinkingLedState = LED_ON;
-		_set_timer(&(pLed->BlinkTimer),
-			   LED_BLINK_NO_LINK_INTERVAL_ALPHA);
+		mod_timer(&pLed->BlinkTimer, jiffies +
+			  msecs_to_jiffies(LED_BLINK_NO_LINK_INTERVAL_ALPHA));
 		break;
 	case LED_CTL_POWER_OFF:
 		pLed->CurrLedState = LED_OFF;
 		pLed->BlinkingLedState = LED_OFF;
 		if (pLed->bLedNoLinkBlinkInProgress) {
-			_cancel_timer_ex(&(pLed->BlinkTimer));
+			del_timer_sync(&pLed->BlinkTimer);
 			pLed->bLedNoLinkBlinkInProgress = false;
 		}
 		if (pLed->bLedLinkBlinkInProgress) {
-			_cancel_timer_ex(&(pLed->BlinkTimer));
+			del_timer_sync(&pLed->BlinkTimer);
 			pLed->bLedLinkBlinkInProgress = false;
 		}
 		if (pLed->bLedBlinkInProgress) {
-			_cancel_timer_ex(&(pLed->BlinkTimer));
+			del_timer_sync(&pLed->BlinkTimer);
 			pLed->bLedBlinkInProgress = false;
 		}
 		if (pLed->bLedWPSBlinkInProgress) {
-			_cancel_timer_ex(&(pLed->BlinkTimer));
+			del_timer_sync(&pLed->BlinkTimer);
 			pLed->bLedWPSBlinkInProgress = false;
 		}
 		if (pLed->bLedScanBlinkInProgress) {
-			_cancel_timer_ex(&(pLed->BlinkTimer));
+			del_timer_sync(&pLed->BlinkTimer);
 			pLed->bLedScanBlinkInProgress = false;
 		}
-		_set_timer(&(pLed->BlinkTimer), 0);
+		mod_timer(&pLed->BlinkTimer,
+			  jiffies + msecs_to_jiffies(0));
 		break;
 	default:
 		break;
@@ -1111,7 +1116,7 @@ static void SwLedControlMode2(struct _adapter *padapter,
 				return;
 
 			if (pLed->bLedBlinkInProgress == true) {
-				_cancel_timer_ex(&(pLed->BlinkTimer));
+				del_timer_sync(&pLed->BlinkTimer);
 				pLed->bLedBlinkInProgress = false;
 			}
 			pLed->bLedScanBlinkInProgress = true;
@@ -1121,8 +1126,8 @@ static void SwLedControlMode2(struct _adapter *padapter,
 				pLed->BlinkingLedState = LED_OFF;
 			else
 				pLed->BlinkingLedState = LED_ON;
-			_set_timer(&(pLed->BlinkTimer),
-				   LED_BLINK_SCAN_INTERVAL_ALPHA);
+			mod_timer(&pLed->BlinkTimer, jiffies +
+				  msecs_to_jiffies(LED_BLINK_SCAN_INTERVAL_ALPHA));
 		 }
 		break;
 
@@ -1140,8 +1145,8 @@ static void SwLedControlMode2(struct _adapter *padapter,
 				pLed->BlinkingLedState = LED_OFF;
 			else
 				pLed->BlinkingLedState = LED_ON;
-			_set_timer(&(pLed->BlinkTimer),
-				   LED_BLINK_FASTER_INTERVAL_ALPHA);
+			mod_timer(&pLed->BlinkTimer, jiffies +
+				  msecs_to_jiffies(LED_BLINK_FASTER_INTERVAL_ALPHA));
 		}
 		break;
 
@@ -1149,32 +1154,34 @@ static void SwLedControlMode2(struct _adapter *padapter,
 		pLed->CurrLedState = LED_ON;
 		pLed->BlinkingLedState = LED_ON;
 		if (pLed->bLedBlinkInProgress) {
-			_cancel_timer_ex(&(pLed->BlinkTimer));
+			del_timer_sync(&pLed->BlinkTimer);
 			pLed->bLedBlinkInProgress = false;
 		}
 		if (pLed->bLedScanBlinkInProgress) {
-			_cancel_timer_ex(&(pLed->BlinkTimer));
+			del_timer_sync(&pLed->BlinkTimer);
 			pLed->bLedScanBlinkInProgress = false;
 		}
 
-		_set_timer(&(pLed->BlinkTimer), 0);
+		mod_timer(&pLed->BlinkTimer,
+			  jiffies + msecs_to_jiffies(0));
 		break;
 
 	case LED_CTL_START_WPS: /*wait until xinpin finish*/
 	case LED_CTL_START_WPS_BOTTON:
 		if (pLed->bLedWPSBlinkInProgress == false) {
 			if (pLed->bLedBlinkInProgress == true) {
-				_cancel_timer_ex(&(pLed->BlinkTimer));
+				del_timer_sync(&pLed->BlinkTimer);
 				pLed->bLedBlinkInProgress = false;
 			}
 			if (pLed->bLedScanBlinkInProgress == true) {
-				_cancel_timer_ex(&(pLed->BlinkTimer));
+				del_timer_sync(&pLed->BlinkTimer);
 				pLed->bLedScanBlinkInProgress = false;
 			}
 			pLed->bLedWPSBlinkInProgress = true;
 			pLed->CurrLedState = LED_ON;
 			pLed->BlinkingLedState = LED_ON;
-			_set_timer(&(pLed->BlinkTimer), 0);
+			mod_timer(&pLed->BlinkTimer,
+				  jiffies + msecs_to_jiffies(0));
 		 }
 		break;
 
@@ -1182,14 +1189,16 @@ static void SwLedControlMode2(struct _adapter *padapter,
 		pLed->bLedWPSBlinkInProgress = false;
 		pLed->CurrLedState = LED_ON;
 		pLed->BlinkingLedState = LED_ON;
-		_set_timer(&(pLed->BlinkTimer), 0);
+		mod_timer(&pLed->BlinkTimer,
+			  jiffies + msecs_to_jiffies(0));
 		break;
 
 	case LED_CTL_STOP_WPS_FAIL:
 		pLed->bLedWPSBlinkInProgress = false;
 		pLed->CurrLedState = LED_OFF;
 		pLed->BlinkingLedState = LED_OFF;
-		_set_timer(&(pLed->BlinkTimer), 0);
+		mod_timer(&pLed->BlinkTimer,
+			  jiffies + msecs_to_jiffies(0));
 		break;
 
 	case LED_CTL_START_TO_LINK:
@@ -1197,25 +1206,27 @@ static void SwLedControlMode2(struct _adapter *padapter,
 		if (!IS_LED_BLINKING(pLed)) {
 			pLed->CurrLedState = LED_OFF;
 			pLed->BlinkingLedState = LED_OFF;
-			_set_timer(&(pLed->BlinkTimer), 0);
+			mod_timer(&pLed->BlinkTimer,
+				  jiffies + msecs_to_jiffies(0));
 		}
 		break;
 	case LED_CTL_POWER_OFF:
 		pLed->CurrLedState = LED_OFF;
 		pLed->BlinkingLedState = LED_OFF;
 		if (pLed->bLedBlinkInProgress) {
-			_cancel_timer_ex(&(pLed->BlinkTimer));
+			del_timer_sync(&pLed->BlinkTimer);
 			pLed->bLedBlinkInProgress = false;
 		}
 		if (pLed->bLedScanBlinkInProgress) {
-			_cancel_timer_ex(&(pLed->BlinkTimer));
+			del_timer_sync(&pLed->BlinkTimer);
 			pLed->bLedScanBlinkInProgress = false;
 		}
 		if (pLed->bLedWPSBlinkInProgress) {
-			_cancel_timer_ex(&(pLed->BlinkTimer));
+			del_timer_sync(&pLed->BlinkTimer);
 			pLed->bLedWPSBlinkInProgress = false;
 		}
-		_set_timer(&(pLed->BlinkTimer), 0);
+		mod_timer(&pLed->BlinkTimer,
+			  jiffies + msecs_to_jiffies(0));
 		break;
 	default:
 		break;
@@ -1237,7 +1248,7 @@ static void SwLedControlMode3(struct _adapter *padapter,
 			if (IS_LED_WPS_BLINKING(pLed))
 				return;
 			if (pLed->bLedBlinkInProgress == true) {
-				_cancel_timer_ex(&(pLed->BlinkTimer));
+				del_timer_sync(&pLed->BlinkTimer);
 				pLed->bLedBlinkInProgress = false;
 			}
 			pLed->bLedScanBlinkInProgress = true;
@@ -1247,8 +1258,8 @@ static void SwLedControlMode3(struct _adapter *padapter,
 				pLed->BlinkingLedState = LED_OFF;
 			else
 				pLed->BlinkingLedState = LED_ON;
-			_set_timer(&(pLed->BlinkTimer),
-				   LED_BLINK_SCAN_INTERVAL_ALPHA);
+			mod_timer(&pLed->BlinkTimer, jiffies +
+				  msecs_to_jiffies(LED_BLINK_SCAN_INTERVAL_ALPHA));
 		}
 		break;
 	case LED_CTL_TX:
@@ -1265,8 +1276,8 @@ static void SwLedControlMode3(struct _adapter *padapter,
 				pLed->BlinkingLedState = LED_OFF;
 			else
 				pLed->BlinkingLedState = LED_ON;
-			_set_timer(&(pLed->BlinkTimer),
-				   LED_BLINK_FASTER_INTERVAL_ALPHA);
+			mod_timer(&pLed->BlinkTimer, jiffies +
+				  msecs_to_jiffies(LED_BLINK_FASTER_INTERVAL_ALPHA));
 		}
 		break;
 	case LED_CTL_LINK:
@@ -1275,24 +1286,25 @@ static void SwLedControlMode3(struct _adapter *padapter,
 		pLed->CurrLedState = LED_ON;
 		pLed->BlinkingLedState = LED_ON;
 		if (pLed->bLedBlinkInProgress) {
-			_cancel_timer_ex(&(pLed->BlinkTimer));
+			del_timer_sync(&pLed->BlinkTimer);
 			pLed->bLedBlinkInProgress = false;
 		}
 		if (pLed->bLedScanBlinkInProgress) {
-			_cancel_timer_ex(&(pLed->BlinkTimer));
+			del_timer_sync(&pLed->BlinkTimer);
 			pLed->bLedScanBlinkInProgress = false;
 		}
-		_set_timer(&(pLed->BlinkTimer), 0);
+		mod_timer(&pLed->BlinkTimer,
+			  jiffies + msecs_to_jiffies(0));
 		break;
 	case LED_CTL_START_WPS: /* wait until xinpin finish */
 	case LED_CTL_START_WPS_BOTTON:
 		if (pLed->bLedWPSBlinkInProgress == false) {
 			if (pLed->bLedBlinkInProgress == true) {
-				_cancel_timer_ex(&(pLed->BlinkTimer));
+				del_timer_sync(&pLed->BlinkTimer);
 				pLed->bLedBlinkInProgress = false;
 			}
 			if (pLed->bLedScanBlinkInProgress == true) {
-				_cancel_timer_ex(&(pLed->BlinkTimer));
+				del_timer_sync(&pLed->BlinkTimer);
 				pLed->bLedScanBlinkInProgress = false;
 			}
 			pLed->bLedWPSBlinkInProgress = true;
@@ -1301,59 +1313,63 @@ static void SwLedControlMode3(struct _adapter *padapter,
 				pLed->BlinkingLedState = LED_OFF;
 			else
 				pLed->BlinkingLedState = LED_ON;
-			_set_timer(&(pLed->BlinkTimer),
-				   LED_BLINK_SCAN_INTERVAL_ALPHA);
+			mod_timer(&pLed->BlinkTimer, jiffies +
+				  msecs_to_jiffies(LED_BLINK_SCAN_INTERVAL_ALPHA));
 		}
 		break;
 	case LED_CTL_STOP_WPS:
 		if (pLed->bLedWPSBlinkInProgress) {
-			_cancel_timer_ex(&(pLed->BlinkTimer));
+			del_timer_sync(&(pLed->BlinkTimer));
 			pLed->bLedWPSBlinkInProgress = false;
 		} else
 			pLed->bLedWPSBlinkInProgress = true;
 		pLed->CurrLedState = LED_BLINK_WPS_STOP;
 		if (pLed->bLedOn) {
 			pLed->BlinkingLedState = LED_OFF;
-			_set_timer(&(pLed->BlinkTimer),
-				   LED_BLINK_WPS_SUCESS_INTERVAL_ALPHA);
+			mod_timer(&pLed->BlinkTimer, jiffies +
+				  msecs_to_jiffies(LED_BLINK_WPS_SUCESS_INTERVAL_ALPHA));
 		} else {
 			pLed->BlinkingLedState = LED_ON;
-			_set_timer(&(pLed->BlinkTimer), 0);
+			mod_timer(&pLed->BlinkTimer,
+				  jiffies + msecs_to_jiffies(0));
 		}
 		break;
 	case LED_CTL_STOP_WPS_FAIL:
 		if (pLed->bLedWPSBlinkInProgress) {
-			_cancel_timer_ex(&(pLed->BlinkTimer));
+			del_timer_sync(&pLed->BlinkTimer);
 			pLed->bLedWPSBlinkInProgress = false;
 		}
 		pLed->CurrLedState = LED_OFF;
 		pLed->BlinkingLedState = LED_OFF;
-		_set_timer(&(pLed->BlinkTimer), 0);
+		mod_timer(&pLed->BlinkTimer,
+			  jiffies + msecs_to_jiffies(0));
 		break;
 	case LED_CTL_START_TO_LINK:
 	case LED_CTL_NO_LINK:
 		if (!IS_LED_BLINKING(pLed)) {
 			pLed->CurrLedState = LED_OFF;
 			pLed->BlinkingLedState = LED_OFF;
-			_set_timer(&(pLed->BlinkTimer), 0);
+			mod_timer(&pLed->BlinkTimer,
+				  jiffies + msecs_to_jiffies(0));
 		}
 		break;
 	case LED_CTL_POWER_OFF:
 		pLed->CurrLedState = LED_OFF;
 		pLed->BlinkingLedState = LED_OFF;
 		if (pLed->bLedBlinkInProgress) {
-			_cancel_timer_ex(&(pLed->BlinkTimer));
+			del_timer_sync(&pLed->BlinkTimer);
 			pLed->bLedBlinkInProgress = false;
 		}
 		if (pLed->bLedScanBlinkInProgress) {
-			_cancel_timer_ex(&(pLed->BlinkTimer));
+			del_timer_sync(&pLed->BlinkTimer);
 			pLed->bLedScanBlinkInProgress = false;
 		}
 		if (pLed->bLedWPSBlinkInProgress) {
-			_cancel_timer_ex(&(pLed->BlinkTimer));
+			del_timer_sync(&pLed->BlinkTimer);
 			pLed->bLedWPSBlinkInProgress = false;
 		}
-		_set_timer(&(pLed->BlinkTimer), 0);
+		mod_timer(&pLed->BlinkTimer,
+			  jiffies + msecs_to_jiffies(0));
 		break;
 	default:
 		break;
@@ -1372,34 +1388,35 @@ static void SwLedControlMode4(struct _adapter *padapter,
 	case LED_CTL_START_TO_LINK:
 		if (pLed1->bLedWPSBlinkInProgress) {
 			pLed1->bLedWPSBlinkInProgress = false;
-			_cancel_timer_ex(&(pLed1->BlinkTimer));
+			del_timer_sync(&pLed1->BlinkTimer);
 			pLed1->BlinkingLedState = LED_OFF;
 			pLed1->CurrLedState = LED_OFF;
 			if (pLed1->bLedOn)
-				_set_timer(&(pLed->BlinkTimer), 0);
+				mod_timer(&pLed->BlinkTimer,
+					  jiffies + msecs_to_jiffies(0));
 		}
 		if (pLed->bLedStartToLinkBlinkInProgress == false) {
 			if (pLed->CurrLedState == LED_SCAN_BLINK ||
 			    IS_LED_WPS_BLINKING(pLed))
 				return;
 			if (pLed->bLedBlinkInProgress == true) {
-				_cancel_timer_ex(&(pLed->BlinkTimer));
+				del_timer_sync(&pLed->BlinkTimer);
 				pLed->bLedBlinkInProgress = false;
 			}
 			if (pLed->bLedNoLinkBlinkInProgress == true) {
-				_cancel_timer_ex(&(pLed->BlinkTimer));
+				del_timer_sync(&pLed->BlinkTimer);
 				pLed->bLedNoLinkBlinkInProgress = false;
 			}
 			pLed->bLedStartToLinkBlinkInProgress = true;
 			pLed->CurrLedState = LED_BLINK_StartToBlink;
 			if (pLed->bLedOn) {
 				pLed->BlinkingLedState = LED_OFF;
-				_set_timer(&(pLed->BlinkTimer),
-					   LED_BLINK_SLOWLY_INTERVAL);
+				mod_timer(&pLed->BlinkTimer, jiffies +
+					  msecs_to_jiffies(LED_BLINK_SLOWLY_INTERVAL));
 			} else {
 				pLed->BlinkingLedState = LED_ON;
-				_set_timer(&(pLed->BlinkTimer),
-					   LED_BLINK_NORMAL_INTERVAL);
+				mod_timer(&pLed->BlinkTimer, jiffies +
+					  msecs_to_jiffies(LED_BLINK_NORMAL_INTERVAL));
 			}
 		}
 		break;
@@ -1409,11 +1426,12 @@ static void SwLedControlMode4(struct _adapter *padapter,
 		if (LedAction == LED_CTL_LINK) {
 			if (pLed1->bLedWPSBlinkInProgress) {
 				pLed1->bLedWPSBlinkInProgress = false;
-				_cancel_timer_ex(&(pLed1->BlinkTimer));
+				del_timer_sync(&pLed1->BlinkTimer);
 				pLed1->BlinkingLedState = LED_OFF;
 				pLed1->CurrLedState = LED_OFF;
 				if (pLed1->bLedOn)
-					_set_timer(&(pLed->BlinkTimer), 0);
+					mod_timer(&pLed->BlinkTimer,
+						  jiffies + msecs_to_jiffies(0));
 			}
 		}
 		if (pLed->bLedNoLinkBlinkInProgress == false) {
@@ -1421,7 +1439,7 @@ static void SwLedControlMode4(struct _adapter *padapter,
 			    IS_LED_WPS_BLINKING(pLed))
 				return;
 			if (pLed->bLedBlinkInProgress == true) {
-				_cancel_timer_ex(&(pLed->BlinkTimer));
+				del_timer_sync(&pLed->BlinkTimer);
 				pLed->bLedBlinkInProgress = false;
 			}
 			pLed->bLedNoLinkBlinkInProgress = true;
@@ -1430,8 +1448,8 @@ static void SwLedControlMode4(struct _adapter *padapter,
 				pLed->BlinkingLedState = LED_OFF;
 			else
 				pLed->BlinkingLedState = LED_ON;
-			_set_timer(&(pLed->BlinkTimer),
-				   LED_BLINK_NO_LINK_INTERVAL_ALPHA);
+			mod_timer(&pLed->BlinkTimer, jiffies +
+				  msecs_to_jiffies(LED_BLINK_NO_LINK_INTERVAL_ALPHA));
 		}
 		break;
 	case LED_CTL_SITE_SURVEY:
@@ -1442,11 +1460,11 @@ static void SwLedControlMode4(struct _adapter *padapter,
 			if (IS_LED_WPS_BLINKING(pLed))
 				return;
 			if (pLed->bLedNoLinkBlinkInProgress == true) {
-				_cancel_timer_ex(&(pLed->BlinkTimer));
+				del_timer_sync(&pLed->BlinkTimer);
 				pLed->bLedNoLinkBlinkInProgress = false;
 			}
 			if (pLed->bLedBlinkInProgress == true) {
-				_cancel_timer_ex(&(pLed->BlinkTimer));
+				del_timer_sync(&pLed->BlinkTimer);
 				pLed->bLedBlinkInProgress = false;
 			}
 			pLed->bLedScanBlinkInProgress = true;
@@ -1456,8 +1474,8 @@ static void SwLedControlMode4(struct _adapter *padapter,
 				pLed->BlinkingLedState = LED_OFF;
 			else
 				pLed->BlinkingLedState = LED_ON;
-			_set_timer(&(pLed->BlinkTimer),
-				   LED_BLINK_SCAN_INTERVAL_ALPHA);
+			mod_timer(&pLed->BlinkTimer, jiffies +
+				  msecs_to_jiffies(LED_BLINK_SCAN_INTERVAL_ALPHA));
 		}
 		break;
 	case LED_CTL_TX:
@@ -1467,7 +1485,7 @@ static void SwLedControlMode4(struct _adapter *padapter,
 			    IS_LED_WPS_BLINKING(pLed))
 				return;
 			if (pLed->bLedNoLinkBlinkInProgress == true) {
-				_cancel_timer_ex(&(pLed->BlinkTimer));
+				del_timer_sync(&pLed->BlinkTimer);
 				pLed->bLedNoLinkBlinkInProgress = false;
 			}
 			pLed->bLedBlinkInProgress = true;
@@ -1477,49 +1495,50 @@ static void SwLedControlMode4(struct _adapter *padapter,
 				pLed->BlinkingLedState = LED_OFF;
 			else
 				pLed->BlinkingLedState = LED_ON;
-			_set_timer(&(pLed->BlinkTimer),
-				   LED_BLINK_FASTER_INTERVAL_ALPHA);
+			mod_timer(&pLed->BlinkTimer, jiffies +
+				  msecs_to_jiffies(LED_BLINK_FASTER_INTERVAL_ALPHA));
 		}
 		break;
 	case LED_CTL_START_WPS: /*wait until xinpin finish*/
 	case LED_CTL_START_WPS_BOTTON:
 		if (pLed1->bLedWPSBlinkInProgress) {
 			pLed1->bLedWPSBlinkInProgress = false;
-			_cancel_timer_ex(&(pLed1->BlinkTimer));
+			del_timer_sync(&(pLed1->BlinkTimer));
 			pLed1->BlinkingLedState = LED_OFF;
 			pLed1->CurrLedState = LED_OFF;
 			if (pLed1->bLedOn)
-				_set_timer(&(pLed->BlinkTimer), 0);
+				mod_timer(&pLed->BlinkTimer,
+					  jiffies + msecs_to_jiffies(0));
 		}
 		if (pLed->bLedWPSBlinkInProgress == false) {
 			if (pLed->bLedNoLinkBlinkInProgress == true) {
-				_cancel_timer_ex(&(pLed->BlinkTimer));
+				del_timer_sync(&pLed->BlinkTimer);
 				pLed->bLedNoLinkBlinkInProgress = false;
 			}
 			if (pLed->bLedBlinkInProgress == true) {
-				_cancel_timer_ex(&(pLed->BlinkTimer));
+				del_timer_sync(&pLed->BlinkTimer);
 				pLed->bLedBlinkInProgress = false;
 			}
 			if (pLed->bLedScanBlinkInProgress == true) {
-				_cancel_timer_ex(&(pLed->BlinkTimer));
+				del_timer_sync(&pLed->BlinkTimer);
 				pLed->bLedScanBlinkInProgress = false;
 			}
 			pLed->bLedWPSBlinkInProgress = true;
 			pLed->CurrLedState = LED_BLINK_WPS;
 			if (pLed->bLedOn) {
 				pLed->BlinkingLedState = LED_OFF;
-				_set_timer(&(pLed->BlinkTimer),
-					   LED_BLINK_SLOWLY_INTERVAL);
+				mod_timer(&pLed->BlinkTimer, jiffies +
+					  msecs_to_jiffies(LED_BLINK_SLOWLY_INTERVAL));
 			} else {
 				pLed->BlinkingLedState = LED_ON;
-				_set_timer(&(pLed->BlinkTimer),
-					   LED_BLINK_NORMAL_INTERVAL);
+				mod_timer(&pLed->BlinkTimer, jiffies +
+					  msecs_to_jiffies(LED_BLINK_NORMAL_INTERVAL));
 			}
 		}
 		break;
 	case LED_CTL_STOP_WPS:	/*WPS connect success*/
 		if (pLed->bLedWPSBlinkInProgress) {
-			_cancel_timer_ex(&(pLed->BlinkTimer));
+			del_timer_sync(&pLed->BlinkTimer);
 			pLed->bLedWPSBlinkInProgress = false;
 		}
 		pLed->bLedNoLinkBlinkInProgress = true;
@@ -1528,12 +1547,12 @@ static void SwLedControlMode4(struct _adapter *padapter,
 			pLed->BlinkingLedState = LED_OFF;
 		else
 			pLed->BlinkingLedState = LED_ON;
-		_set_timer(&(pLed->BlinkTimer),
-			   LED_BLINK_NO_LINK_INTERVAL_ALPHA);
+		mod_timer(&pLed->BlinkTimer, jiffies +
+			  msecs_to_jiffies(LED_BLINK_NO_LINK_INTERVAL_ALPHA));
 		break;
 	case LED_CTL_STOP_WPS_FAIL:	/*WPS authentication fail*/
 		if (pLed->bLedWPSBlinkInProgress) {
-			_cancel_timer_ex(&(pLed->BlinkTimer));
+			del_timer_sync(&pLed->BlinkTimer);
 			pLed->bLedWPSBlinkInProgress = false;
 		}
 		pLed->bLedNoLinkBlinkInProgress = true;
@@ -1542,11 +1561,11 @@ static void SwLedControlMode4(struct _adapter *padapter,
 			pLed->BlinkingLedState = LED_OFF;
 		else
 			pLed->BlinkingLedState = LED_ON;
-		_set_timer(&(pLed->BlinkTimer),
-			   LED_BLINK_NO_LINK_INTERVAL_ALPHA);
+		mod_timer(&pLed->BlinkTimer, jiffies +
+			  msecs_to_jiffies(LED_BLINK_NO_LINK_INTERVAL_ALPHA));
 		/*LED1 settings*/
 		if (pLed1->bLedWPSBlinkInProgress)
-			_cancel_timer_ex(&(pLed1->BlinkTimer));
+			del_timer_sync(&pLed1->BlinkTimer);
 		else
 			pLed1->bLedWPSBlinkInProgress = true;
 		pLed1->CurrLedState = LED_BLINK_WPS_STOP;
@@ -1554,11 +1573,12 @@ static void SwLedControlMode4(struct _adapter *padapter,
 			pLed1->BlinkingLedState = LED_OFF;
 		else
 			pLed1->BlinkingLedState = LED_ON;
-		_set_timer(&(pLed->BlinkTimer), LED_BLINK_NORMAL_INTERVAL);
+		mod_timer(&pLed->BlinkTimer, jiffies +
+			  msecs_to_jiffies(LED_BLINK_NORMAL_INTERVAL));
 		break;
 	case LED_CTL_STOP_WPS_FAIL_OVERLAP:	/*WPS session overlap*/
 		if (pLed->bLedWPSBlinkInProgress) {
-			_cancel_timer_ex(&(pLed->BlinkTimer));
+			del_timer_sync(&pLed->BlinkTimer);
 			pLed->bLedWPSBlinkInProgress = false;
 		}
 		pLed->bLedNoLinkBlinkInProgress = true;
@@ -1567,11 +1587,11 @@ static void SwLedControlMode4(struct _adapter *padapter,
 			pLed->BlinkingLedState = LED_OFF;
 		else
 			pLed->BlinkingLedState = LED_ON;
-		_set_timer(&(pLed->BlinkTimer),
-			   LED_BLINK_NO_LINK_INTERVAL_ALPHA);
+		mod_timer(&pLed->BlinkTimer, jiffies +
+			  msecs_to_jiffies(LED_BLINK_NO_LINK_INTERVAL_ALPHA));
 		/*LED1 settings*/
 		if (pLed1->bLedWPSBlinkInProgress)
-			_cancel_timer_ex(&(pLed1->BlinkTimer));
+			del_timer_sync(&pLed1->BlinkTimer);
 		else
 			pLed1->bLedWPSBlinkInProgress = true;
 		pLed1->CurrLedState = LED_BLINK_WPS_STOP_OVERLAP;
@@ -1580,37 +1600,38 @@ static void SwLedControlMode4(struct _adapter *padapter,
 			pLed1->BlinkingLedState = LED_OFF;
 		else
 			pLed1->BlinkingLedState = LED_ON;
-		_set_timer(&(pLed->BlinkTimer), LED_BLINK_NORMAL_INTERVAL);
+		mod_timer(&pLed->BlinkTimer, jiffies +
+			  msecs_to_jiffies(LED_BLINK_NORMAL_INTERVAL));
 		break;
 	case LED_CTL_POWER_OFF:
 		pLed->CurrLedState = LED_OFF;
 		pLed->BlinkingLedState = LED_OFF;
 		if (pLed->bLedNoLinkBlinkInProgress) {
-			_cancel_timer_ex(&(pLed->BlinkTimer));
+			del_timer_sync(&pLed->BlinkTimer);
 			pLed->bLedNoLinkBlinkInProgress = false;
 		}
 		if (pLed->bLedLinkBlinkInProgress) {
-			_cancel_timer_ex(&(pLed->BlinkTimer));
+			del_timer_sync(&pLed->BlinkTimer);
 			pLed->bLedLinkBlinkInProgress = false;
 		}
 		if (pLed->bLedBlinkInProgress) {
-			_cancel_timer_ex(&(pLed->BlinkTimer));
+			del_timer_sync(&pLed->BlinkTimer);
 			pLed->bLedBlinkInProgress = false;
 		}
 		if (pLed->bLedWPSBlinkInProgress) {
-			_cancel_timer_ex(&(pLed->BlinkTimer));
+			del_timer_sync(&pLed->BlinkTimer);
 			pLed->bLedWPSBlinkInProgress = false;
 		}
 		if (pLed->bLedScanBlinkInProgress) {
-			_cancel_timer_ex(&(pLed->BlinkTimer));
+			del_timer_sync(&pLed->BlinkTimer);
 			pLed->bLedScanBlinkInProgress = false;
 		}
 		if (pLed->bLedStartToLinkBlinkInProgress) {
-			_cancel_timer_ex(&(pLed->BlinkTimer));
+			del_timer_sync(&pLed->BlinkTimer);
 			pLed->bLedStartToLinkBlinkInProgress = false;
 		}
 		if (pLed1->bLedWPSBlinkInProgress) {
-			_cancel_timer_ex(&(pLed1->BlinkTimer));
+			del_timer_sync(&pLed1->BlinkTimer);
 			pLed1->bLedWPSBlinkInProgress = false;
 		}
 		pLed1->BlinkingLedState = LED_UNKNOWN;
@@ -1641,7 +1662,8 @@ static void SwLedControlMode5(struct _adapter *padapter,
 		pLed->CurrLedState = LED_ON;
 		pLed->BlinkingLedState = LED_ON;
 		pLed->bLedBlinkInProgress = false;
-		_set_timer(&(pLed->BlinkTimer), 0);
+		mod_timer(&pLed->BlinkTimer,
+			  jiffies + msecs_to_jiffies(0));
 		break;
 	case LED_CTL_SITE_SURVEY:
 		if ((pmlmepriv->sitesurveyctrl.traffic_busy) &&
@@ -1649,7 +1671,7 @@ static void SwLedControlMode5(struct _adapter *padapter,
 			; /* dummy branch */
 		else if (pLed->bLedScanBlinkInProgress == false) {
 			if (pLed->bLedBlinkInProgress == true) {
-				_cancel_timer_ex(&(pLed->BlinkTimer));
+				del_timer_sync(&pLed->BlinkTimer);
 				pLed->bLedBlinkInProgress = false;
 			}
 			pLed->bLedScanBlinkInProgress = true;
@@ -1659,8 +1681,8 @@ static void SwLedControlMode5(struct _adapter *padapter,
 				pLed->BlinkingLedState = LED_OFF;
 			else
 				pLed->BlinkingLedState = LED_ON;
-			_set_timer(&(pLed->BlinkTimer),
-				   LED_BLINK_SCAN_INTERVAL_ALPHA);
+			mod_timer(&pLed->BlinkTimer, jiffies +
+				  msecs_to_jiffies(LED_BLINK_SCAN_INTERVAL_ALPHA));
 		}
 		break;
 	case LED_CTL_TX:
@@ -1675,15 +1697,15 @@ static void SwLedControlMode5(struct _adapter *padapter,
 				pLed->BlinkingLedState = LED_OFF;
 			else
 				pLed->BlinkingLedState = LED_ON;
-			_set_timer(&(pLed->BlinkTimer),
-				   LED_BLINK_FASTER_INTERVAL_ALPHA);
+			mod_timer(&pLed->BlinkTimer, jiffies +
+				  msecs_to_jiffies(LED_BLINK_FASTER_INTERVAL_ALPHA));
 		}
 		break;
 	case LED_CTL_POWER_OFF:
 		pLed->CurrLedState = LED_OFF;
 		pLed->BlinkingLedState = LED_OFF;
 		if (pLed->bLedBlinkInProgress) {
-			_cancel_timer_ex(&(pLed->BlinkTimer));
+			del_timer_sync(&pLed->BlinkTimer);
 			pLed->bLedBlinkInProgress = false;
 		}
 		SwLedOff(padapter, pLed);
@@ -1711,7 +1733,7 @@ static void SwLedControlMode6(struct _adapter *padapter,
 		pLed->CurrLedState = LED_ON;
 		pLed->BlinkingLedState = LED_ON;
 		pLed->bLedBlinkInProgress = false;
-		_set_timer(&(pLed->BlinkTimer), 0);
+		mod_timer(&(pLed->BlinkTimer), jiffies + msecs_to_jiffies(0));
 		break;
 	case LED_CTL_TX:
 	case LED_CTL_RX:
@@ -1726,15 +1748,15 @@ static void SwLedControlMode6(struct _adapter *padapter,
 				pLed->BlinkingLedState = LED_OFF;
 			else
 				pLed->BlinkingLedState = LED_ON;
-			_set_timer(&(pLed->BlinkTimer),
-				   LED_BLINK_FASTER_INTERVAL_ALPHA);
+			mod_timer(&pLed->BlinkTimer, jiffies +
+				  msecs_to_jiffies(LED_BLINK_FASTER_INTERVAL_ALPHA));
 		}
 		break;
 	case LED_CTL_START_WPS: /*wait until xinpin finish*/
 	case LED_CTL_START_WPS_BOTTON:
 		if (pLed->bLedWPSBlinkInProgress == false) {
 			if (pLed->bLedBlinkInProgress == true) {
-				_cancel_timer_ex(&(pLed->BlinkTimer));
+				del_timer_sync(&pLed->BlinkTimer);
 				pLed->bLedBlinkInProgress = false;
 			}
 			pLed->bLedWPSBlinkInProgress = true;
@@ -1743,29 +1765,30 @@ static void SwLedControlMode6(struct _adapter *padapter,
 				pLed->BlinkingLedState = LED_OFF;
 			else
 				pLed->BlinkingLedState = LED_ON;
-			_set_timer(&(pLed->BlinkTimer),
-				   LED_BLINK_SCAN_INTERVAL_ALPHA);
+			mod_timer(&pLed->BlinkTimer, jiffies +
+				  msecs_to_jiffies(LED_BLINK_SCAN_INTERVAL_ALPHA));
 		}
 		break;
 	case LED_CTL_STOP_WPS_FAIL:
 	case LED_CTL_STOP_WPS:
 		if (pLed->bLedWPSBlinkInProgress) {
-			_cancel_timer_ex(&(pLed->BlinkTimer));
+			del_timer_sync(&pLed->BlinkTimer);
 			pLed->bLedWPSBlinkInProgress = false;
 		}
 		pLed->CurrLedState = LED_ON;
 		pLed->BlinkingLedState = LED_ON;
-		_set_timer(&(pLed->BlinkTimer), 0);
+		mod_timer(&pLed->BlinkTimer,
+			  jiffies + msecs_to_jiffies(0));
 		break;
 	case LED_CTL_POWER_OFF:
 		pLed->CurrLedState = LED_OFF;
 		pLed->BlinkingLedState = LED_OFF;
 		if (pLed->bLedBlinkInProgress) {
-			_cancel_timer_ex(&(pLed->BlinkTimer));
+			del_timer_sync(&pLed->BlinkTimer);
 			pLed->bLedBlinkInProgress = false;
 		}
 		if (pLed->bLedWPSBlinkInProgress) {
-			_cancel_timer_ex(&(pLed->BlinkTimer));
+			del_timer_sync(&pLed->BlinkTimer);
 			pLed->bLedWPSBlinkInProgress = false;
 		}
 		SwLedOff(padapter, pLed);
diff --git a/drivers/staging/rtl8712/rtl8712_recv.c b/drivers/staging/rtl8712/rtl8712_recv.c
index cd8b444..50227b5 100644
--- a/drivers/staging/rtl8712/rtl8712_recv.c
+++ b/drivers/staging/rtl8712/rtl8712_recv.c
@@ -161,12 +161,12 @@ static void update_recvframe_attrib_from_recvstat(struct rx_pkt_attrib *pattrib,
 	u16 drvinfo_sz = 0;
 
 	drvinfo_sz = (le32_to_cpu(prxstat->rxdw0)&0x000f0000)>>16;
-	drvinfo_sz = drvinfo_sz<<3;
+	drvinfo_sz <<= 3;
 	/*TODO:
 	 * Offset 0 */
 	pattrib->bdecrypted = ((le32_to_cpu(prxstat->rxdw0) & BIT(27)) >> 27)
 				 ? 0 : 1;
-	pattrib->crc_err = ((le32_to_cpu(prxstat->rxdw0) & BIT(14)) >> 14);
+	pattrib->crc_err = (le32_to_cpu(prxstat->rxdw0) & BIT(14)) >> 14;
 	/*Offset 4*/
 	/*Offset 8*/
 	/*Offset 12*/
@@ -435,8 +435,8 @@ void r8712_rxcmd_event_hdl(struct _adapter *padapter, void *prxcmdbuf)
 	poffset = (u8 *)prxcmdbuf;
 	voffset = *(uint *)poffset;
 	prxstat = (struct recv_stat *)prxcmdbuf;
-	drvinfo_sz = ((le32_to_cpu(prxstat->rxdw0) & 0x000f0000) >> 16);
-	drvinfo_sz = drvinfo_sz << 3;
+	drvinfo_sz = (le32_to_cpu(prxstat->rxdw0) & 0x000f0000) >> 16;
+	drvinfo_sz <<= 3;
 	poffset += RXDESC_SIZE + drvinfo_sz;
 	do {
 		voffset  = *(uint *)poffset;
@@ -604,12 +604,12 @@ static int recv_indicatepkt_reorder(struct _adapter *padapter,
 	 */
 	if (r8712_recv_indicatepkts_in_order(padapter, preorder_ctrl, false) ==
 	    true) {
-		_set_timer(&preorder_ctrl->reordering_ctrl_timer,
-			   REORDER_WAIT_TIME);
+		mod_timer(&preorder_ctrl->reordering_ctrl_timer,
+			  jiffies + msecs_to_jiffies(REORDER_WAIT_TIME));
 		spin_unlock_irqrestore(&ppending_recvframe_queue->lock, irql);
 	} else {
 		spin_unlock_irqrestore(&ppending_recvframe_queue->lock, irql);
-		_cancel_timer_ex(&preorder_ctrl->reordering_ctrl_timer);
+		del_timer(&preorder_ctrl->reordering_ctrl_timer);
 	}
 	return _SUCCESS;
 _err_exit:
@@ -749,7 +749,7 @@ static void query_rx_phy_status(struct _adapter *padapter,
 		 */
 		if (!cck_highpwr) {
 			report = pcck_buf->cck_agc_rpt & 0xc0;
-			report = report >> 6;
+			report >>= 6;
 			switch (report) {
 			/* Modify the RF RNA gain value to -40, -20,
 			 * -2, 14 by Jenyu's suggestion
@@ -775,7 +775,7 @@ static void query_rx_phy_status(struct _adapter *padapter,
 		} else {
 			report = ((u8)(le32_to_cpu(pphy_stat->phydw1) >> 8)) &
 				 0x60;
-			report = report >> 5;
+			report >>= 5;
 			switch (report) {
 			case 0x3:
 				rx_pwr_all = -40 - ((pcck_buf->cck_agc_rpt &
@@ -1039,7 +1039,7 @@ static int recvbuf2recvframe(struct _adapter *padapter, struct sk_buff *pskb)
 		frag = (le32_to_cpu(prxstat->rxdw2) >> 12) & 0xf;
 		/* uint 2^3 = 8 bytes */
 		drvinfo_sz = (le32_to_cpu(prxstat->rxdw0) & 0x000f0000) >> 16;
-		drvinfo_sz = drvinfo_sz<<3;
+		drvinfo_sz <<= 3;
 		if (pkt_len <= 0)
 			goto  _exit_recvbuf2recvframe;
 		/* Qos data, wireless lan header length is 26 */
diff --git a/drivers/staging/rtl8712/rtl871x_cmd.c b/drivers/staging/rtl8712/rtl871x_cmd.c
index fe5e315..1a1c38f 100644
--- a/drivers/staging/rtl8712/rtl871x_cmd.c
+++ b/drivers/staging/rtl8712/rtl871x_cmd.c
@@ -247,7 +247,8 @@ u8 r8712_sitesurvey_cmd(struct _adapter *padapter,
 	}
 	set_fwstate(pmlmepriv, _FW_UNDER_SURVEY);
 	r8712_enqueue_cmd(pcmdpriv, ph2c);
-	_set_timer(&pmlmepriv->scan_to_timer, SCANNING_TIMEOUT);
+	mod_timer(&pmlmepriv->scan_to_timer,
+		  jiffies + msecs_to_jiffies(SCANNING_TIMEOUT));
 	padapter->ledpriv.LedControlHandler(padapter, LED_CTL_SITE_SURVEY);
 	padapter->blnEnableRxFF0Filter = 0;
 	return _SUCCESS;
@@ -530,8 +531,8 @@ u8 r8712_joinbss_cmd(struct _adapter  *padapter, struct wlan_network *pnetwork)
 	 * the driver just has the bssid information for PMKIDList searching.
 	 */
 	if (pmlmepriv->assoc_by_bssid == false)
-		memcpy(&pmlmepriv->assoc_bssid[0],
-			&pnetwork->network.MacAddress[0], ETH_ALEN);
+		ether_addr_copy(&pmlmepriv->assoc_bssid[0],
+				&pnetwork->network.MacAddress[0]);
 	psecnetwork->IELength = r8712_restruct_sec_ie(padapter,
 						&pnetwork->network.IEs[0],
 						&psecnetwork->IEs[0],
@@ -682,7 +683,7 @@ u8 r8712_setstakey_cmd(struct _adapter *padapter, u8 *psta, u8 unicast_key)
 	init_h2fwcmd_w_parm_no_rsp(ph2c, psetstakey_para, _SetStaKey_CMD_);
 	ph2c->rsp = (u8 *) psetstakey_rsp;
 	ph2c->rspsz = sizeof(struct set_stakey_rsp);
-	memcpy(psetstakey_para->addr, sta->hwaddr, ETH_ALEN);
+	ether_addr_copy(psetstakey_para->addr, sta->hwaddr);
 	if (check_fwstate(pmlmepriv, WIFI_STATION_STATE))
 		psetstakey_para->algorithm = (unsigned char)
 					    psecuritypriv->PrivacyAlgrthm;
@@ -784,7 +785,7 @@ u8 r8712_setMacAddr_cmd(struct _adapter *padapter, u8 *mac_addr)
 	}
 	init_h2fwcmd_w_parm_no_rsp(ph2c, psetMacAddr_para,
 				   _SetMacAddress_CMD_);
-	memcpy(psetMacAddr_para->MacAddr, mac_addr, ETH_ALEN);
+	ether_addr_copy(psetMacAddr_para->MacAddr, mac_addr);
 	r8712_enqueue_cmd(pcmdpriv, ph2c);
 	return _SUCCESS;
 }
@@ -813,7 +814,7 @@ u8 r8712_setassocsta_cmd(struct _adapter *padapter, u8 *mac_addr)
 	init_h2fwcmd_w_parm_no_rsp(ph2c, psetassocsta_para, _SetAssocSta_CMD_);
 	ph2c->rsp = (u8 *) psetassocsta_rsp;
 	ph2c->rspsz = sizeof(struct set_assocsta_rsp);
-	memcpy(psetassocsta_para->addr, mac_addr, ETH_ALEN);
+	ether_addr_copy(psetassocsta_para->addr, mac_addr);
 	r8712_enqueue_cmd(pcmdpriv, ph2c);
 	return _SUCCESS;
 }
@@ -890,7 +891,8 @@ void r8712_joinbss_cmd_callback(struct _adapter *padapter, struct cmd_obj *pcmd)
 	struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
 
 	if (pcmd->res != H2C_SUCCESS)
-		_set_timer(&pmlmepriv->assoc_timer, 1);
+		mod_timer(&pmlmepriv->assoc_timer,
+			  jiffies + msecs_to_jiffies(1));
 	r8712_free_cmd_obj(pcmd);
 }
 
@@ -898,7 +900,6 @@ void r8712_createbss_cmd_callback(struct _adapter *padapter,
 				  struct cmd_obj *pcmd)
 {
 	unsigned long irqL;
-	u8 timer_cancelled;
 	struct sta_info *psta = NULL;
 	struct wlan_network *pwlan = NULL;
 	struct	mlme_priv *pmlmepriv = &padapter->mlmepriv;
@@ -907,8 +908,9 @@ void r8712_createbss_cmd_callback(struct _adapter *padapter,
 	struct wlan_network *tgt_network = &(pmlmepriv->cur_network);
 
 	if (pcmd->res != H2C_SUCCESS)
-		_set_timer(&pmlmepriv->assoc_timer, 1);
-	_cancel_timer(&pmlmepriv->assoc_timer, &timer_cancelled);
+		mod_timer(&pmlmepriv->assoc_timer,
+			  jiffies + msecs_to_jiffies(1));
+	del_timer_sync(&pmlmepriv->assoc_timer);
 #ifdef __BIG_ENDIAN
 	/* endian_convert */
 	pnetwork->Length = le32_to_cpu(pnetwork->Length);
diff --git a/drivers/staging/rtl8712/rtl871x_eeprom.c b/drivers/staging/rtl8712/rtl871x_eeprom.c
index 2f145d6..50339e6 100644
--- a/drivers/staging/rtl8712/rtl871x_eeprom.c
+++ b/drivers/staging/rtl8712/rtl871x_eeprom.c
@@ -64,7 +64,7 @@ static void shift_out_bits(struct _adapter *padapter, u16 data, u16 count)
 		udelay(CLOCK_RATE);
 		up_clk(padapter, &x);
 		down_clk(padapter, &x);
-		mask = mask >> 1;
+		mask >>= 1;
 	} while (mask);
 	if (padapter->bSurpriseRemoved == true)
 		goto out;
@@ -83,7 +83,7 @@ static u16 shift_in_bits(struct _adapter *padapter)
 	x &= ~(_EEDO | _EEDI);
 	d = 0;
 	for (i = 0; i < 16; i++) {
-		d = d << 1;
+		d <<= 1;
 		up_clk(padapter, &x);
 		if (padapter->bSurpriseRemoved == true)
 			goto out;
diff --git a/drivers/staging/rtl8712/rtl871x_ioctl_linux.c b/drivers/staging/rtl8712/rtl871x_ioctl_linux.c
index 9bb364f..42fba3f 100644
--- a/drivers/staging/rtl8712/rtl871x_ioctl_linux.c
+++ b/drivers/staging/rtl8712/rtl871x_ioctl_linux.c
@@ -46,6 +46,8 @@
 #include <linux/semaphore.h>
 #include <net/iw_handler.h>
 #include <linux/if_arp.h>
+#include <linux/etherdevice.h>
+
 
 #define RTL_IOCTL_WPA_SUPPLICANT	(SIOCIWFIRSTPRIV + 0x1E)
 
@@ -112,7 +114,7 @@ void r8712_indicate_wx_disassoc_event(struct _adapter *padapter)
 	union iwreq_data wrqu;
 
 	wrqu.ap_addr.sa_family = ARPHRD_ETHER;
-	memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN);
+	eth_zero_addr(wrqu.ap_addr.sa_data);
 	wireless_send_event(padapter->pnetdev, SIOCGIWAP, &wrqu, NULL);
 }
 
@@ -129,7 +131,8 @@ static inline void handle_pairwise_key(struct sta_info *psta,
 		memcpy(psta->tkiprxmickey. skey, &(param->u.crypt.
 			key[24]), 8);
 		padapter->securitypriv. busetkipkey = false;
-		_set_timer(&padapter->securitypriv.tkip_timer, 50);
+		mod_timer(&padapter->securitypriv.tkip_timer,
+			  jiffies + msecs_to_jiffies(50));
 	}
 	r8712_setstakey_cmd(padapter, (unsigned char *)psta, true);
 }
@@ -153,8 +156,8 @@ static inline void handle_group_key(struct ieee_param *param,
 		if (padapter->registrypriv.power_mgnt > PS_MODE_ACTIVE) {
 			if (padapter->registrypriv.power_mgnt != padapter->
 			    pwrctrlpriv.pwr_mode)
-				_set_timer(&(padapter->mlmepriv.dhcp_timer),
-					   60000);
+				mod_timer(&padapter->mlmepriv.dhcp_timer,
+					  jiffies + msecs_to_jiffies(60000));
 		}
 	}
 }
@@ -182,7 +185,7 @@ static inline char *translate_scan(struct _adapter *padapter,
 	/* AP MAC address */
 	iwe.cmd = SIOCGIWAP;
 	iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
-	memcpy(iwe.u.ap_addr.sa_data, pnetwork->network.MacAddress, ETH_ALEN);
+	ether_addr_copy(iwe.u.ap_addr.sa_data, pnetwork->network.MacAddress);
 	start = iwe_stream_add_event(info, start, stop, &iwe, IW_EV_ADDR_LEN);
 	/* Add the ESSID */
 	iwe.cmd = SIOCGIWESSID;
@@ -360,7 +363,7 @@ static inline char *translate_scan(struct _adapter *padapter,
 
 static int wpa_set_auth_algs(struct net_device *dev, u32 value)
 {
-	struct _adapter *padapter = (struct _adapter *) netdev_priv(dev);
+	struct _adapter *padapter = netdev_priv(dev);
 	int ret = 0;
 
 	if ((value & AUTH_ALG_SHARED_KEY) && (value & AUTH_ALG_OPEN_SYSTEM)) {
@@ -392,7 +395,7 @@ static int wpa_set_encryption(struct net_device *dev, struct ieee_param *param,
 	int ret = 0;
 	u32 wep_key_idx, wep_key_len = 0;
 	struct NDIS_802_11_WEP	 *pwep = NULL;
-	struct _adapter *padapter = (struct _adapter *)netdev_priv(dev);
+	struct _adapter *padapter = netdev_priv(dev);
 	struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
 	struct security_priv *psecuritypriv = &padapter->securitypriv;
 
@@ -626,7 +629,7 @@ static int r8711_wx_get_name(struct net_device *dev,
 			     struct iw_request_info *info,
 			     union iwreq_data *wrqu, char *extra)
 {
-	struct _adapter *padapter = (struct _adapter *)netdev_priv(dev);
+	struct _adapter *padapter = netdev_priv(dev);
 	u32 ht_ielen = 0;
 	char *p;
 	u8 ht_cap = false;
@@ -682,7 +685,7 @@ static int r8711_wx_set_freq(struct net_device *dev,
 			     struct iw_request_info *info,
 			     union iwreq_data *wrqu, char *extra)
 {
-	struct _adapter *padapter = (struct _adapter *)netdev_priv(dev);
+	struct _adapter *padapter = netdev_priv(dev);
 	struct iw_freq *fwrq = &wrqu->freq;
 	int rc = 0;
 
@@ -718,7 +721,7 @@ static int r8711_wx_get_freq(struct net_device *dev,
 			     struct iw_request_info *info,
 			     union iwreq_data *wrqu, char *extra)
 {
-	struct _adapter *padapter = (struct _adapter *)netdev_priv(dev);
+	struct _adapter *padapter = netdev_priv(dev);
 	struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
 	struct ndis_wlan_bssid_ex *pcur_bss = &pmlmepriv->cur_network.network;
 
@@ -737,7 +740,7 @@ static int r8711_wx_set_mode(struct net_device *dev,
 			     struct iw_request_info *a,
 			     union iwreq_data *wrqu, char *b)
 {
-	struct _adapter *padapter = (struct _adapter *)netdev_priv(dev);
+	struct _adapter *padapter = netdev_priv(dev);
 	enum NDIS_802_11_NETWORK_INFRASTRUCTURE networkType;
 
 	switch (wrqu->mode) {
@@ -768,7 +771,7 @@ static int r8711_wx_set_mode(struct net_device *dev,
 static int r8711_wx_get_mode(struct net_device *dev, struct iw_request_info *a,
 			     union iwreq_data *wrqu, char *b)
 {
-	struct _adapter *padapter = (struct _adapter *)netdev_priv(dev);
+	struct _adapter *padapter = netdev_priv(dev);
 	struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
 
 	if (check_fwstate(pmlmepriv, WIFI_STATION_STATE) == true)
@@ -787,7 +790,7 @@ static int r871x_wx_set_pmkid(struct net_device *dev,
 			     struct iw_request_info *a,
 			     union iwreq_data *wrqu, char *extra)
 {
-	struct _adapter *padapter = (struct _adapter *)netdev_priv(dev);
+	struct _adapter *padapter = netdev_priv(dev);
 	struct security_priv *psecuritypriv = &padapter->securitypriv;
 	struct iw_pmksa *pPMK = (struct iw_pmksa *) extra;
 	u8 strZeroMacAddress[ETH_ALEN] = {0x00};
@@ -851,8 +854,7 @@ static int r871x_wx_set_pmkid(struct net_device *dev,
 			    strIssueBssid, ETH_ALEN)) {
 				/* BSSID is matched, the same AP => Remove
 				 * this PMKID information and reset it. */
-				memset(psecuritypriv->PMKIDList[j].Bssid,
-					0x00, ETH_ALEN);
+				eth_zero_addr(psecuritypriv->PMKIDList[j].Bssid);
 				psecuritypriv->PMKIDList[j].bUsed = false;
 				break;
 			}
@@ -1059,7 +1061,7 @@ static int r8711_wx_set_wap(struct net_device *dev,
 			 char *extra)
 {
 	int ret = -EINPROGRESS;
-	struct _adapter *padapter = (struct _adapter *) netdev_priv(dev);
+	struct _adapter *padapter = netdev_priv(dev);
 	struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
 	struct  __queue *queue = &pmlmepriv->scanned_queue;
 	struct sockaddr *temp = (struct sockaddr *)awrq;
@@ -1108,16 +1110,16 @@ static int r8711_wx_get_wap(struct net_device *dev,
 				struct iw_request_info *info,
 				union iwreq_data *wrqu, char *extra)
 {
-	struct _adapter *padapter = (struct _adapter *)netdev_priv(dev);
+	struct _adapter *padapter = netdev_priv(dev);
 	struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
 	struct ndis_wlan_bssid_ex *pcur_bss = &pmlmepriv->cur_network.network;
 
 	wrqu->ap_addr.sa_family = ARPHRD_ETHER;
 	if (check_fwstate(pmlmepriv, _FW_LINKED | WIFI_ADHOC_MASTER_STATE |
 				     WIFI_AP_STATE))
-		memcpy(wrqu->ap_addr.sa_data, pcur_bss->MacAddress, ETH_ALEN);
+		ether_addr_copy(wrqu->ap_addr.sa_data, pcur_bss->MacAddress);
 	else
-		memset(wrqu->ap_addr.sa_data, 0, ETH_ALEN);
+		eth_zero_addr(wrqu->ap_addr.sa_data);
 	return 0;
 }
 
@@ -1126,7 +1128,7 @@ static int r871x_wx_set_mlme(struct net_device *dev,
 			     union iwreq_data *wrqu, char *extra)
 {
 	int ret = 0;
-	struct _adapter *padapter = (struct _adapter *)netdev_priv(dev);
+	struct _adapter *padapter = netdev_priv(dev);
 	struct iw_mlme *mlme = (struct iw_mlme *) extra;
 
 	if (mlme == NULL)
@@ -1158,7 +1160,7 @@ static int r8711_wx_set_scan(struct net_device *dev,
 			struct iw_request_info *a,
 			union iwreq_data *wrqu, char *extra)
 {
-	struct _adapter *padapter = (struct _adapter *)netdev_priv(dev);
+	struct _adapter *padapter = netdev_priv(dev);
 	struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
 	u8 status = true;
 
@@ -1207,7 +1209,7 @@ static int r8711_wx_get_scan(struct net_device *dev,
 				struct iw_request_info *a,
 				union iwreq_data *wrqu, char *extra)
 {
-	struct _adapter *padapter = (struct _adapter *)netdev_priv(dev);
+	struct _adapter *padapter = netdev_priv(dev);
 	struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
 	struct  __queue *queue = &pmlmepriv->scanned_queue;
 	struct wlan_network *pnetwork = NULL;
@@ -1261,7 +1263,7 @@ static int r8711_wx_set_essid(struct net_device *dev,
 				struct iw_request_info *a,
 				union iwreq_data *wrqu, char *extra)
 {
-	struct _adapter *padapter = (struct _adapter *)netdev_priv(dev);
+	struct _adapter *padapter = netdev_priv(dev);
 	struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
 	struct  __queue *queue = &pmlmepriv->scanned_queue;
 	struct wlan_network *pnetwork = NULL;
@@ -1324,7 +1326,7 @@ static int r8711_wx_get_essid(struct net_device *dev,
 				struct iw_request_info *a,
 				union iwreq_data *wrqu, char *extra)
 {
-	struct _adapter *padapter = (struct _adapter *)netdev_priv(dev);
+	struct _adapter *padapter = netdev_priv(dev);
 	struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
 	struct ndis_wlan_bssid_ex *pcur_bss = &pmlmepriv->cur_network.network;
 	u32 len, ret = 0;
@@ -1344,7 +1346,7 @@ static int r8711_wx_set_rate(struct net_device *dev,
 				struct iw_request_info *a,
 				union iwreq_data *wrqu, char *extra)
 {
-	struct _adapter *padapter = (struct _adapter *)netdev_priv(dev);
+	struct _adapter *padapter = netdev_priv(dev);
 	u32 target_rate = wrqu->bitrate.value;
 	u32 fixed = wrqu->bitrate.fixed;
 	u32 ratevalue = 0;
@@ -1416,7 +1418,7 @@ static int r8711_wx_get_rate(struct net_device *dev,
 			     struct iw_request_info *info,
 			     union iwreq_data *wrqu, char *extra)
 {
-	struct _adapter *padapter = (struct _adapter *)netdev_priv(dev);
+	struct _adapter *padapter = netdev_priv(dev);
 	struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
 	struct ndis_wlan_bssid_ex *pcur_bss = &pmlmepriv->cur_network.network;
 	struct ieee80211_ht_cap *pht_capie;
@@ -1473,7 +1475,7 @@ static int r8711_wx_get_rts(struct net_device *dev,
 				struct iw_request_info *info,
 				union iwreq_data *wrqu, char *extra)
 {
-	struct _adapter *padapter = (struct _adapter *)netdev_priv(dev);
+	struct _adapter *padapter = netdev_priv(dev);
 
 	wrqu->rts.value = padapter->registrypriv.rts_thresh;
 	wrqu->rts.fixed = 0;	/* no auto select */
@@ -1484,7 +1486,7 @@ static int r8711_wx_set_frag(struct net_device *dev,
 				struct iw_request_info *info,
 				union iwreq_data *wrqu, char *extra)
 {
-	struct _adapter *padapter = (struct _adapter *)netdev_priv(dev);
+	struct _adapter *padapter = netdev_priv(dev);
 
 	if (wrqu->frag.disabled)
 		padapter->xmitpriv.frag_len = MAX_FRAG_THRESHOLD;
@@ -1501,7 +1503,7 @@ static int r8711_wx_get_frag(struct net_device *dev,
 				struct iw_request_info *info,
 				union iwreq_data *wrqu, char *extra)
 {
-	struct _adapter *padapter = (struct _adapter *) netdev_priv(dev);
+	struct _adapter *padapter = netdev_priv(dev);
 
 	wrqu->frag.value = padapter->xmitpriv.frag_len;
 	wrqu->frag.fixed = 0;	/* no auto select */
@@ -1527,7 +1529,7 @@ static int r8711_wx_set_enc(struct net_device *dev,
 	struct NDIS_802_11_WEP	 wep;
 	enum NDIS_802_11_AUTHENTICATION_MODE authmode;
 	struct iw_point *erq = &(wrqu->encoding);
-	struct _adapter *padapter = (struct _adapter *) netdev_priv(dev);
+	struct _adapter *padapter = netdev_priv(dev);
 
 	key = erq->flags & IW_ENCODE_INDEX;
 	memset(&wep, 0, sizeof(struct NDIS_802_11_WEP));
@@ -1619,7 +1621,7 @@ static int r8711_wx_get_enc(struct net_device *dev,
 				union iwreq_data *wrqu, char *keybuf)
 {
 	uint key, ret = 0;
-	struct _adapter *padapter = (struct _adapter *) netdev_priv(dev);
+	struct _adapter *padapter = netdev_priv(dev);
 	struct iw_point *erq = &(wrqu->encoding);
 	struct	mlme_priv	*pmlmepriv = &(padapter->mlmepriv);
 
@@ -1691,7 +1693,7 @@ static int r871x_wx_set_gen_ie(struct net_device *dev,
 				struct iw_request_info *info,
 				union iwreq_data *wrqu, char *extra)
 {
-	struct _adapter *padapter = (struct _adapter *)netdev_priv(dev);
+	struct _adapter *padapter = netdev_priv(dev);
 
 	return r871x_set_wpa_ie(padapter, extra, wrqu->data.length);
 }
@@ -1700,7 +1702,7 @@ static int r871x_wx_set_auth(struct net_device *dev,
 				struct iw_request_info *info,
 				union iwreq_data *wrqu, char *extra)
 {
-	struct _adapter *padapter = (struct _adapter *)netdev_priv(dev);
+	struct _adapter *padapter = netdev_priv(dev);
 	struct iw_param *param = (struct iw_param *)&(wrqu->param);
 	int paramid;
 	int paramval;
@@ -1847,7 +1849,7 @@ static int r8711_wx_read32(struct net_device *dev,
 				struct iw_request_info *info,
 				union iwreq_data *wrqu, char *keybuf)
 {
-	struct _adapter *padapter = (struct _adapter *) netdev_priv(dev);
+	struct _adapter *padapter = netdev_priv(dev);
 	u32 addr;
 	u32 data32;
 
@@ -1864,7 +1866,7 @@ static int r8711_wx_write32(struct net_device *dev,
 				 struct iw_request_info *info,
 				 union iwreq_data *wrqu, char *keybuf)
 {
-	struct _adapter *padapter = (struct _adapter *) netdev_priv(dev);
+	struct _adapter *padapter = netdev_priv(dev);
 	u32 addr;
 	u32 data32;
 
@@ -1892,7 +1894,7 @@ static int r871x_mp_ioctl_hdl(struct net_device *dev,
 				struct iw_request_info *info,
 				union iwreq_data *wrqu, char *extra)
 {
-	struct _adapter *padapter = (struct _adapter *)netdev_priv(dev);
+	struct _adapter *padapter = netdev_priv(dev);
 	struct iw_point *p = &wrqu->data;
 	struct oid_par_priv oid_par;
 	struct mp_ioctl_handler *phandler;
@@ -1910,13 +1912,9 @@ static int r871x_mp_ioctl_hdl(struct net_device *dev,
 	bset = (u8)(p->flags & 0xFFFF);
 	len = p->length;
 	pparmbuf = NULL;
-	pparmbuf = kmalloc(len, GFP_ATOMIC);
-	if (pparmbuf == NULL) {
-		ret = -ENOMEM;
-		goto _r871x_mp_ioctl_hdl_exit;
-	}
-	if (copy_from_user(pparmbuf, p->pointer, len)) {
-		ret = -EFAULT;
+	pparmbuf = memdup_user(p->pointer, len);
+	if (IS_ERR(pparmbuf)) {
+		ret = PTR_ERR(pparmbuf);
 		goto _r871x_mp_ioctl_hdl_exit;
 	}
 	poidparam = (struct mp_ioctl_param *)pparmbuf;
@@ -1975,7 +1973,7 @@ static int r871x_get_ap_info(struct net_device *dev,
 				struct iw_request_info *info,
 				union iwreq_data *wrqu, char *extra)
 {
-	struct _adapter *padapter = (struct _adapter *)netdev_priv(dev);
+	struct _adapter *padapter = netdev_priv(dev);
 	struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
 	struct  __queue *queue = &pmlmepriv->scanned_queue;
 	struct iw_point *pdata = &wrqu->data;
@@ -2046,7 +2044,7 @@ static int r871x_set_pid(struct net_device *dev,
 				struct iw_request_info *info,
 				union iwreq_data *wrqu, char *extra)
 {
-	struct _adapter *padapter = (struct _adapter *) netdev_priv(dev);
+	struct _adapter *padapter = netdev_priv(dev);
 	struct iw_point *pdata = &wrqu->data;
 
 	if ((padapter->bDriverStopped) || (pdata == NULL))
@@ -2061,7 +2059,7 @@ static int r871x_set_chplan(struct net_device *dev,
 				union iwreq_data *wrqu, char *extra)
 {
 	int ret = 0;
-	struct _adapter *padapter = (struct _adapter *) netdev_priv(dev);
+	struct _adapter *padapter = netdev_priv(dev);
 	struct iw_point *pdata = &wrqu->data;
 	int ch_plan = -1;
 
@@ -2081,7 +2079,7 @@ static int r871x_wps_start(struct net_device *dev,
 			   struct iw_request_info *info,
 			   union iwreq_data *wrqu, char *extra)
 {
-	struct _adapter *padapter = (struct _adapter *)netdev_priv(dev);
+	struct _adapter *padapter = netdev_priv(dev);
 	struct iw_point *pdata = &wrqu->data;
 	u32   u32wps_start = 0;
 
@@ -2105,7 +2103,7 @@ static int r871x_wps_start(struct net_device *dev,
 
 static int wpa_set_param(struct net_device *dev, u8 name, u32 value)
 {
-	struct _adapter *padapter = (struct _adapter *) netdev_priv(dev);
+	struct _adapter *padapter = netdev_priv(dev);
 
 	switch (name) {
 	case IEEE_PARAM_WPA_ENABLED:
@@ -2157,7 +2155,7 @@ static int wpa_set_param(struct net_device *dev, u8 name, u32 value)
 
 static int wpa_mlme(struct net_device *dev, u32 command, u32 reason)
 {
-	struct _adapter *padapter = (struct _adapter *) netdev_priv(dev);
+	struct _adapter *padapter = netdev_priv(dev);
 
 	switch (command) {
 	case IEEE_MLME_STA_DEAUTH:
@@ -2178,7 +2176,7 @@ static int wpa_supplicant_ioctl(struct net_device *dev, struct iw_point *p)
 {
 	struct ieee_param *param;
 	int ret = 0;
-	struct _adapter *padapter = (struct _adapter *) netdev_priv(dev);
+	struct _adapter *padapter = netdev_priv(dev);
 
 	if (p->length < sizeof(struct ieee_param) || !p->pointer)
 		return -EINVAL;
@@ -2331,7 +2329,7 @@ static iw_handler r8711_private_handler[] = {
 
 static struct iw_statistics *r871x_get_wireless_stats(struct net_device *dev)
 {
-	struct _adapter *padapter = (struct _adapter *) netdev_priv(dev);
+	struct _adapter *padapter = netdev_priv(dev);
 	struct iw_statistics *piwstats = &padapter->iwstats;
 	int tmp_level = 0;
 	int tmp_qual = 0;
diff --git a/drivers/staging/rtl8712/rtl871x_ioctl_set.c b/drivers/staging/rtl8712/rtl871x_ioctl_set.c
index 6318a0e..22262b3 100644
--- a/drivers/staging/rtl8712/rtl871x_ioctl_set.c
+++ b/drivers/staging/rtl8712/rtl871x_ioctl_set.c
@@ -85,7 +85,8 @@ static u8 do_join(struct _adapter *padapter)
 
 		ret = r8712_select_and_join_from_scan(pmlmepriv);
 		if (ret == _SUCCESS)
-			_set_timer(&pmlmepriv->assoc_timer, MAX_JOIN_TIMEOUT);
+			mod_timer(&pmlmepriv->assoc_timer,
+				  jiffies + msecs_to_jiffies(MAX_JOIN_TIMEOUT));
 		else {
 			if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)) {
 				/* submit r8712_createbss_cmd to change to an
@@ -265,8 +266,7 @@ void r8712_set_802_11_infrastructure_mode(struct _adapter *padapter,
 		/* clear WIFI_STATION_STATE; WIFI_AP_STATE; WIFI_ADHOC_STATE;
 		 * WIFI_ADHOC_MASTER_STATE */
 		_clr_fwstate_(pmlmepriv, WIFI_STATION_STATE | WIFI_AP_STATE |
-			      WIFI_ADHOC_STATE | WIFI_ADHOC_MASTER_STATE |
-			      WIFI_AP_STATE);
+			      WIFI_ADHOC_STATE | WIFI_ADHOC_MASTER_STATE);
 		switch (networktype) {
 		case Ndis802_11IBSS:
 			set_fwstate(pmlmepriv, WIFI_ADHOC_STATE);
diff --git a/drivers/staging/rtl8712/rtl871x_mlme.c b/drivers/staging/rtl8712/rtl871x_mlme.c
index 977a833..fb2b195 100644
--- a/drivers/staging/rtl8712/rtl871x_mlme.c
+++ b/drivers/staging/rtl8712/rtl871x_mlme.c
@@ -582,9 +582,7 @@ void r8712_surveydone_event_callback(struct _adapter *adapter, u8 *pbuf)
 	spin_lock_irqsave(&pmlmepriv->lock, irqL);
 
 	if (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY) == true) {
-		u8 timer_cancelled;
-
-		_cancel_timer(&pmlmepriv->scan_to_timer, &timer_cancelled);
+		del_timer_sync(&pmlmepriv->scan_to_timer);
 
 		_clr_fwstate_(pmlmepriv, _FW_UNDER_SURVEY);
 	}
@@ -596,8 +594,8 @@ void r8712_surveydone_event_callback(struct _adapter *adapter, u8 *pbuf)
 
 				if (r8712_select_and_join_from_scan(pmlmepriv)
 				    == _SUCCESS)
-					_set_timer(&pmlmepriv->assoc_timer,
-						   MAX_JOIN_TIMEOUT);
+					mod_timer(&pmlmepriv->assoc_timer, jiffies +
+						  msecs_to_jiffies(MAX_JOIN_TIMEOUT));
 				else {
 					struct wlan_bssid_ex *pdev_network =
 					  &(adapter->registrypriv.dev_network);
@@ -622,8 +620,8 @@ void r8712_surveydone_event_callback(struct _adapter *adapter, u8 *pbuf)
 			set_fwstate(pmlmepriv, _FW_UNDER_LINKING);
 			if (r8712_select_and_join_from_scan(pmlmepriv) ==
 			    _SUCCESS)
-				_set_timer(&pmlmepriv->assoc_timer,
-					   MAX_JOIN_TIMEOUT);
+				mod_timer(&pmlmepriv->assoc_timer, jiffies +
+					  msecs_to_jiffies(MAX_JOIN_TIMEOUT));
 			else
 				_clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
 		}
@@ -679,7 +677,8 @@ void r8712_indicate_connect(struct _adapter *padapter)
 	padapter->ledpriv.LedControlHandler(padapter, LED_CTL_LINK);
 	r8712_os_indicate_connect(padapter);
 	if (padapter->registrypriv.power_mgnt > PS_MODE_ACTIVE)
-		_set_timer(&pmlmepriv->dhcp_timer, 60000);
+		mod_timer(&pmlmepriv->dhcp_timer,
+			  jiffies + msecs_to_jiffies(60000));
 }
 
 
@@ -697,7 +696,7 @@ void r8712_ind_disconnect(struct _adapter *padapter)
 	}
 	if (padapter->pwrctrlpriv.pwr_mode !=
 	    padapter->registrypriv.power_mgnt) {
-		_cancel_timer_ex(&pmlmepriv->dhcp_timer);
+		del_timer_sync(&pmlmepriv->dhcp_timer);
 		r8712_set_ps_mode(padapter, padapter->registrypriv.power_mgnt,
 				  padapter->registrypriv.smart_ps);
 	}
@@ -716,7 +715,6 @@ void r8712_ind_disconnect(struct _adapter *padapter)
 void r8712_joinbss_event_callback(struct _adapter *adapter, u8 *pbuf)
 {
 	unsigned long irqL = 0, irqL2;
-	u8 timer_cancelled;
 	struct sta_info	*ptarget_sta = NULL, *pcur_sta = NULL;
 	struct sta_priv	*pstapriv = &adapter->stapriv;
 	struct mlme_priv	*pmlmepriv = &adapter->mlmepriv;
@@ -727,6 +725,8 @@ void r8712_joinbss_event_callback(struct _adapter *adapter, u8 *pbuf)
 
 	if (sizeof(struct list_head) == 4 * sizeof(u32)) {
 		pnetwork = kmalloc(sizeof(struct wlan_network), GFP_ATOMIC);
+		if (!pnetwork)
+			return;
 		memcpy((u8 *)pnetwork+16, (u8 *)pbuf + 8,
 			sizeof(struct wlan_network) - 16);
 	} else
@@ -910,13 +910,13 @@ void r8712_joinbss_event_callback(struct _adapter *adapter, u8 *pbuf)
 			if (check_fwstate(pmlmepriv, WIFI_STATION_STATE)
 				== true)
 				r8712_indicate_connect(adapter);
-			_cancel_timer(&pmlmepriv->assoc_timer,
-				      &timer_cancelled);
+			del_timer_sync(&pmlmepriv->assoc_timer);
 		} else
 			goto ignore_joinbss_callback;
 	} else {
 		if (check_fwstate(pmlmepriv, _FW_UNDER_LINKING) == true) {
-			_set_timer(&pmlmepriv->assoc_timer, 1);
+			mod_timer(&pmlmepriv->assoc_timer,
+				  jiffies + msecs_to_jiffies(1));
 			_clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
 		}
 	}
@@ -1599,17 +1599,15 @@ sint r8712_restruct_sec_ie(struct _adapter *adapter, u8 *in_ie,
 	iEntry = SecIsInPMKIDList(adapter, pmlmepriv->assoc_bssid);
 	if (iEntry < 0)
 		return ielength;
-	else {
-		if (authmode == _WPA2_IE_ID_) {
-			out_ie[ielength] = 1;
-			ielength++;
-			out_ie[ielength] = 0;	/*PMKID count = 0x0100*/
-			ielength++;
-			memcpy(&out_ie[ielength],
-				&psecuritypriv->PMKIDList[iEntry].PMKID, 16);
-			ielength += 16;
-			out_ie[13] += 18;/*PMKID length = 2+16*/
-		}
+	if (authmode == _WPA2_IE_ID_) {
+		out_ie[ielength] = 1;
+		ielength++;
+		out_ie[ielength] = 0;	/*PMKID count = 0x0100*/
+		ielength++;
+		memcpy(&out_ie[ielength],
+			&psecuritypriv->PMKIDList[iEntry].PMKID, 16);
+		ielength += 16;
+		out_ie[13] += 18;/*PMKID length = 2+16*/
 	}
 	return ielength;
 }
diff --git a/drivers/staging/rtl8712/rtl871x_mp.c b/drivers/staging/rtl8712/rtl871x_mp.c
index 3d913b9..26201ea 100644
--- a/drivers/staging/rtl8712/rtl871x_mp.c
+++ b/drivers/staging/rtl8712/rtl871x_mp.c
@@ -327,8 +327,8 @@ void r8712_SetTxAGCOffset(struct _adapter *pAdapter, u32 ulTxAGCOffset)
 	u32 TxAGCOffset_B, TxAGCOffset_C, TxAGCOffset_D, tmpAGC;
 
 	TxAGCOffset_B = (ulTxAGCOffset&0x000000ff);
-	TxAGCOffset_C = ((ulTxAGCOffset&0x0000ff00)>>8);
-	TxAGCOffset_D = ((ulTxAGCOffset&0x00ff0000)>>16);
+	TxAGCOffset_C = (ulTxAGCOffset & 0x0000ff00)>>8;
+	TxAGCOffset_D = (ulTxAGCOffset & 0x00ff0000)>>16;
 	tmpAGC = (TxAGCOffset_D<<8 | TxAGCOffset_C<<4 | TxAGCOffset_B);
 	set_bb_reg(pAdapter, rFPGA0_TxGainStage,
 			(bXBTxAGC|bXCTxAGC|bXDTxAGC), tmpAGC);
diff --git a/drivers/staging/rtl8712/rtl871x_pwrctrl.c b/drivers/staging/rtl8712/rtl871x_pwrctrl.c
index ed2844d..aaa5844 100644
--- a/drivers/staging/rtl8712/rtl871x_pwrctrl.c
+++ b/drivers/staging/rtl8712/rtl871x_pwrctrl.c
@@ -103,7 +103,7 @@ void r8712_cpwm_int_hdl(struct _adapter *padapter,
 
 	if (pwrpriv->cpwm_tog == ((preportpwrstate->state) & 0x80))
 		return;
-	_cancel_timer_ex(&padapter->pwrctrlpriv. rpwm_check_timer);
+	del_timer_sync(&padapter->pwrctrlpriv.rpwm_check_timer);
 	_enter_pwrlock(&pwrpriv->lock);
 	pwrpriv->cpwm = (preportpwrstate->state) & 0xf;
 	if (pwrpriv->cpwm >= PS_STATE_S2) {
@@ -165,9 +165,9 @@ static void rpwm_workitem_callback(struct work_struct *work)
 	}
 }
 
-static void rpwm_check_handler (void *FunctionContext)
+static void rpwm_check_handler (unsigned long data)
 {
-	struct _adapter *adapter = (struct _adapter *)FunctionContext;
+	struct _adapter *adapter = (struct _adapter *)data;
 
 	_rpwm_check_handler(adapter);
 }
@@ -186,8 +186,8 @@ void r8712_init_pwrctrl_priv(struct _adapter *padapter)
 	r8712_write8(padapter, 0x1025FE58, 0);
 	INIT_WORK(&pwrctrlpriv->SetPSModeWorkItem, SetPSModeWorkItemCallback);
 	INIT_WORK(&pwrctrlpriv->rpwm_workitem, rpwm_workitem_callback);
-	_init_timer(&(pwrctrlpriv->rpwm_check_timer),
-		    padapter->pnetdev, rpwm_check_handler, (u8 *)padapter);
+	setup_timer(&pwrctrlpriv->rpwm_check_timer, rpwm_check_handler,
+		    (unsigned long)padapter);
 }
 
 /*
diff --git a/drivers/staging/rtl8712/rtl871x_recv.c b/drivers/staging/rtl8712/rtl871x_recv.c
index 06f15f8..046a46c 100644
--- a/drivers/staging/rtl8712/rtl871x_recv.c
+++ b/drivers/staging/rtl8712/rtl871x_recv.c
@@ -517,8 +517,7 @@ static sint validate_recv_data_frame(struct _adapter *adapter,
 		return _FAIL;
 	if (psta == NULL)
 		return _FAIL;
-	else
-		precv_frame->u.hdr.psta = psta;
+	precv_frame->u.hdr.psta = psta;
 	pattrib->amsdu = 0;
 	/* parsing QC field */
 	if (pattrib->qos == 1) {
diff --git a/drivers/staging/rtl8712/rtl871x_security.c b/drivers/staging/rtl8712/rtl871x_security.c
index c653ad6..bcd1a51 100644
--- a/drivers/staging/rtl8712/rtl871x_security.c
+++ b/drivers/staging/rtl8712/rtl871x_security.c
@@ -153,7 +153,7 @@ static u32 getcrc32(u8 *buf, u32 len)
 	u8 *p;
 	u32  crc;
 
-	if (bcrc32initialized == 0)
+	if (!bcrc32initialized)
 		crc32_init();
 	crc = 0xffffffff; /* preload shift register, per CRC-32 spec */
 	for (p = buf; len > 0; ++p, --len)
@@ -1045,7 +1045,7 @@ static sint aes_cipher(u8 *key, uint	hdrlen,
 	uint	frtype  = GetFrameType(pframe);
 	uint	frsubtype  = GetFrameSubType(pframe);
 
-	frsubtype = frsubtype >> 4;
+	frsubtype >>= 4;
 	memset((void *)mic_iv, 0, 16);
 	memset((void *)mic_header1, 0, 16);
 	memset((void *)mic_header2, 0, 16);
@@ -1086,7 +1086,7 @@ static sint aes_cipher(u8 *key, uint	hdrlen,
 	payload_remainder = plen % 16;
 	num_blocks = plen / 16;
 	/* Find start of payload */
-	payload_index = (hdrlen + 8);
+	payload_index = hdrlen + 8;
 	/* Calculate MIC */
 	aes128k128d(key, mic_iv, aes_out);
 	bitwise_xor(aes_out, mic_header1, chain_buffer);
@@ -1216,7 +1216,7 @@ static sint aes_decipher(u8 *key, uint	hdrlen,
 	uint frtype  = GetFrameType(pframe);
 	uint frsubtype  = GetFrameSubType(pframe);
 
-	frsubtype = frsubtype >> 4;
+	frsubtype >>= 4;
 	memset((void *)mic_iv, 0, 16);
 	memset((void *)mic_header1, 0, 16);
 	memset((void *)mic_header2, 0, 16);
@@ -1292,7 +1292,7 @@ static sint aes_decipher(u8 *key, uint	hdrlen,
 	payload_remainder = (plen - 8) % 16;
 	num_blocks = (plen - 8) / 16;
 	/* Find start of payload */
-	payload_index = (hdrlen + 8);
+	payload_index = hdrlen + 8;
 	/* Calculate MIC */
 	aes128k128d(key, mic_iv, aes_out);
 	bitwise_xor(aes_out, mic_header1, chain_buffer);
@@ -1392,9 +1392,9 @@ u32 r8712_aes_decrypt(struct _adapter *padapter, u8 *precvframe)
 	return _SUCCESS;
 }
 
-void r8712_use_tkipkey_handler(void *FunctionContext)
+void r8712_use_tkipkey_handler(unsigned long data)
 {
-	struct _adapter *padapter = (struct _adapter *)FunctionContext;
+	struct _adapter *padapter = (struct _adapter *)data;
 
 	padapter->securitypriv.busetkipkey = true;
 }
diff --git a/drivers/staging/rtl8712/rtl871x_security.h b/drivers/staging/rtl8712/rtl871x_security.h
index c732aea..2295f0e 100644
--- a/drivers/staging/rtl8712/rtl871x_security.h
+++ b/drivers/staging/rtl8712/rtl871x_security.h
@@ -216,7 +216,7 @@ void r8712_wep_encrypt(struct _adapter *padapter, u8  *pxmitframe);
 u32 r8712_aes_decrypt(struct _adapter *padapter, u8  *precvframe);
 u32 r8712_tkip_decrypt(struct _adapter *padapter, u8  *precvframe);
 void r8712_wep_decrypt(struct _adapter *padapter, u8  *precvframe);
-void r8712_use_tkipkey_handler(void *FunctionContext);
+void r8712_use_tkipkey_handler(unsigned long data);
 
 #endif	/*__RTL871X_SECURITY_H_ */
 
diff --git a/drivers/staging/rtl8712/rtl871x_sta_mgt.c b/drivers/staging/rtl8712/rtl871x_sta_mgt.c
index 1752121..7bb96c4 100644
--- a/drivers/staging/rtl8712/rtl871x_sta_mgt.c
+++ b/drivers/staging/rtl8712/rtl871x_sta_mgt.c
@@ -198,7 +198,7 @@ void r8712_free_stainfo(struct _adapter *padapter, struct sta_info *psta)
 	 * cancel reordering_ctrl_timer */
 	for (i = 0; i < 16; i++) {
 		preorder_ctrl = &psta->recvreorder_ctrl[i];
-		_cancel_timer_ex(&preorder_ctrl->reordering_ctrl_timer);
+		del_timer_sync(&preorder_ctrl->reordering_ctrl_timer);
 	}
 	spin_lock(&(pfree_sta_queue->lock));
 	/* insert into free_sta_queue; 20061114 */
diff --git a/drivers/staging/rtl8712/rtl871x_xmit.c b/drivers/staging/rtl8712/rtl871x_xmit.c
index a28af03..2e4fa88 100644
--- a/drivers/staging/rtl8712/rtl871x_xmit.c
+++ b/drivers/staging/rtl8712/rtl871x_xmit.c
@@ -203,13 +203,12 @@ sint r8712_update_attrib(struct _adapter *padapter, _pkt *pkt,
 	pattrib->ether_type = ntohs(etherhdr.h_proto);
 
 {
-	u8 bool;
 	/*If driver xmit ARP packet, driver can set ps mode to initial
 	 * setting. It stands for getting DHCP or fix IP.*/
 	if (pattrib->ether_type == 0x0806) {
 		if (padapter->pwrctrlpriv.pwr_mode !=
 		    padapter->registrypriv.power_mgnt) {
-			_cancel_timer(&(pmlmepriv->dhcp_timer), &bool);
+			del_timer_sync(&pmlmepriv->dhcp_timer);
 			r8712_set_ps_mode(padapter, padapter->registrypriv.
 				power_mgnt, padapter->registrypriv.smart_ps);
 		}
diff --git a/drivers/staging/rtl8712/wifi.h b/drivers/staging/rtl8712/wifi.h
index 73d7cd2..17f5131 100644
--- a/drivers/staging/rtl8712/wifi.h
+++ b/drivers/staging/rtl8712/wifi.h
@@ -235,11 +235,6 @@ enum WIFI_REG_DOMAIN {
 #define GetPrivacy(pbuf)	(((*(unsigned short *)(pbuf)) & \
 				le16_to_cpu(_PRIVACY_)) != 0)
 
-#define ClearPrivacy(pbuf) ({ \
-	*(unsigned short *)(pbuf) &= (~cpu_to_le16(_PRIVACY_)); \
-})
-
-
 #define GetOrder(pbuf)	(((*(unsigned short *)(pbuf)) & \
 			le16_to_cpu(_ORDER_)) != 0)
 
@@ -248,9 +243,9 @@ enum WIFI_REG_DOMAIN {
 
 #define SetFrameType(pbuf, type)	\
 	do {	\
-		*(unsigned short *)(pbuf) &= __constant_cpu_to_le16(~(BIT(3) | \
+		*(unsigned short *)(pbuf) &= cpu_to_le16(~(BIT(3) | \
 		BIT(2))); \
-		*(unsigned short *)(pbuf) |= __constant_cpu_to_le16(type); \
+		*(unsigned short *)(pbuf) |= cpu_to_le16(type); \
 	} while (0)
 
 #define GetFrameSubType(pbuf)	(cpu_to_le16(*(unsigned short *)(pbuf)) & \
@@ -270,16 +265,6 @@ enum WIFI_REG_DOMAIN {
 #define GetFragNum(pbuf)	(cpu_to_le16(*(unsigned short *)((addr_t)\
 				(pbuf) + 22)) & 0x0f)
 
-#define GetTupleCache(pbuf)	(cpu_to_le16(*(unsigned short *)\
-				((addr_t)(pbuf) + 22)))
-
-#define SetFragNum(pbuf, num) ({ \
-	*(unsigned short *)((addr_t)(pbuf) + 22) = \
-	((*(unsigned short *)((addr_t)(pbuf) + 22)) & \
-	le16_to_cpu(~(0x000f))) | \
-	cpu_to_le16(0x0f & (num));     \
-})
-
 #define SetSeqNum(pbuf, num) ({ \
 	*(unsigned short *)((addr_t)(pbuf) + 22) = \
 	((*(unsigned short *)((addr_t)(pbuf) + 22)) & \
@@ -306,17 +291,9 @@ enum WIFI_REG_DOMAIN {
 
 #define GetAMsdu(pbuf) (((le16_to_cpu(*(unsigned short *)pbuf)) >> 7) & 0x1)
 
-#define SetAMsdu(pbuf, amsdu) ({ \
-	*(unsigned short *)(pbuf) |= cpu_to_le16((amsdu & 1) << 7); \
-})
-
 #define GetAid(pbuf)	(cpu_to_le16(*(unsigned short *)((addr_t)(pbuf) + 2)) \
 			& 0x3fff)
 
-#define GetTid(pbuf)	(cpu_to_le16(*(unsigned short *)((addr_t)(pbuf) + \
-			(((GetToDs(pbuf) << 1)|GetFrDs(pbuf)) == 3 ? \
-			30 : 24))) & 0x000f)
-
 #define GetAddr1Ptr(pbuf)	((unsigned char *)((addr_t)(pbuf) + 4))
 
 #define GetAddr2Ptr(pbuf)	((unsigned char *)((addr_t)(pbuf) + 10))
diff --git a/drivers/staging/rtl8712/xmit_linux.c b/drivers/staging/rtl8712/xmit_linux.c
index 039b598..d15fb1a 100644
--- a/drivers/staging/rtl8712/xmit_linux.c
+++ b/drivers/staging/rtl8712/xmit_linux.c
@@ -162,7 +162,7 @@ void r8712_xmit_complete(struct _adapter *padapter, struct xmit_frame *pxframe)
 int r8712_xmit_entry(_pkt *pkt, struct  net_device *pnetdev)
 {
 	struct xmit_frame *pxmitframe = NULL;
-	struct _adapter *padapter = (struct _adapter *)netdev_priv(pnetdev);
+	struct _adapter *padapter = netdev_priv(pnetdev);
 	struct xmit_priv *pxmitpriv = &(padapter->xmitpriv);
 	int ret = 0;
 
diff --git a/drivers/staging/rtl8723au/core/rtw_ap.c b/drivers/staging/rtl8723au/core/rtw_ap.c
index c6327c0..6456689 100644
--- a/drivers/staging/rtl8723au/core/rtw_ap.c
+++ b/drivers/staging/rtl8723au/core/rtw_ap.c
@@ -20,6 +20,7 @@
 #include <wifi.h>
 #include <rtl8723a_cmd.h>
 #include <rtl8723a_hal.h>
+#include <asm/unaligned.h>
 
 extern unsigned char WMM_OUI23A[];
 extern unsigned char WPS_OUI23A[];
@@ -72,11 +73,8 @@ static void update_BCNTIM(struct rtw_adapter *padapter)
 	struct wlan_bssid_ex *pnetwork_mlmeext = &pmlmeinfo->network;
 	unsigned char *pie = pnetwork_mlmeext->IEs;
 	u8 *p, *dst_ie, *premainder_ie = NULL, *pbackup_remainder_ie = NULL;
-	__le16 tim_bitmap_le;
 	uint offset, tmp_len, tim_ielen, tim_ie_offset, remainder_ielen;
 
-	tim_bitmap_le = cpu_to_le16(pstapriv->tim_bitmap);
-
 	p = rtw_get_ie23a(pie, WLAN_EID_TIM, &tim_ielen,
 			  pnetwork_mlmeext->IELength);
 	if (p != NULL && tim_ielen > 0) {
@@ -143,9 +141,9 @@ static void update_BCNTIM(struct rtw_adapter *padapter)
 		*dst_ie++ = 0;
 
 	if (tim_ielen == 4) {
-		*dst_ie++ = *(u8 *)&tim_bitmap_le;
+		*dst_ie++ = pstapriv->tim_bitmap & 0xff;
 	} else if (tim_ielen == 5) {
-		memcpy(dst_ie, &tim_bitmap_le, 2);
+		put_unaligned_le16(pstapriv->tim_bitmap, dst_ie);
 		dst_ie += 2;
 	}
 
@@ -262,15 +260,17 @@ void	expire_timeout_chk23a(struct rtw_adapter *padapter)
 			list_del_init(&psta->asoc_list);
 			pstapriv->asoc_list_cnt--;
 
-			DBG_8723A("asoc expire "MAC_FMT", state = 0x%x\n", MAC_ARG(psta->hwaddr), psta->state);
+			DBG_8723A("asoc expire %pM, state = 0x%x\n",
+				  psta->hwaddr, psta->state);
 			updated = ap_free_sta23a(padapter, psta, false, WLAN_REASON_DEAUTH_LEAVING);
 		} else {
 			/* TODO: Aging mechanism to digest frames in sleep_q to avoid running out of xmitframe */
 			if (psta->sleepq_len > (NR_XMITFRAME/pstapriv->asoc_list_cnt)
 				&& padapter->xmitpriv.free_xmitframe_cnt < ((NR_XMITFRAME/pstapriv->asoc_list_cnt)/2)
 			) {
-				DBG_8723A("%s sta:"MAC_FMT", sleepq_len:%u, free_xmitframe_cnt:%u, asoc_list_cnt:%u, clear sleep_q\n", __func__,
-					  MAC_ARG(psta->hwaddr),
+				DBG_8723A("%s sta:%pM, sleepq_len:%u, free_xmitframe_cnt:%u, asoc_list_cnt:%u, clear sleep_q\n",
+					  __func__,
+					  psta->hwaddr,
 					  psta->sleepq_len,
 					  padapter->xmitpriv.free_xmitframe_cnt,
 					  pstapriv->asoc_list_cnt);
@@ -307,7 +307,8 @@ void	expire_timeout_chk23a(struct rtw_adapter *padapter)
 
 		psta->keep_alive_trycnt++;
 		if (ret == _SUCCESS) {
-			DBG_8723A("asoc check, sta(" MAC_FMT ") is alive\n", MAC_ARG(psta->hwaddr));
+			DBG_8723A("asoc check, sta(%pM) is alive\n",
+				  psta->hwaddr);
 			psta->expire_to = pstapriv->expire_to;
 			psta->keep_alive_trycnt = 0;
 			continue;
@@ -319,7 +320,8 @@ void	expire_timeout_chk23a(struct rtw_adapter *padapter)
 
 		psta->keep_alive_trycnt = 0;
 
-		DBG_8723A("asoc expire "MAC_FMT", state = 0x%x\n", MAC_ARG(psta->hwaddr), psta->state);
+		DBG_8723A("asoc expire %pM, state = 0x%x\n",
+			  psta->hwaddr, psta->state);
 		spin_lock_bh(&pstapriv->asoc_list_lock);
 		if (!list_empty(&psta->asoc_list)) {
 			list_del_init(&psta->asoc_list);
@@ -785,6 +787,7 @@ int rtw_check_beacon_data23a(struct rtw_adapter *padapter,
 	struct wlan_bssid_ex *pbss_network = &pmlmepriv->cur_network.network;
 	u8 *ie = pbss_network->IEs;
 	u8 *pbuf = mgmt->u.beacon.variable;
+
 	len -= offsetof(struct ieee80211_mgmt, u.beacon.variable);
 	/* SSID */
 	/* Supported rates */
@@ -1045,7 +1048,7 @@ int rtw_acl_add_sta23a(struct rtw_adapter *padapter, u8 *addr)
 	struct wlan_acl_pool *pacl_list = &pstapriv->acl_list;
 	struct rtw_queue *pacl_node_q = &pacl_list->acl_node_q;
 
-	DBG_8723A("%s(acl_num =%d) =" MAC_FMT "\n", __func__, pacl_list->num, MAC_ARG(addr));
+	DBG_8723A("%s(acl_num =%d) =%pM\n", __func__, pacl_list->num, addr);
 
 	if ((NUM_ACL-1) < pacl_list->num)
 		return -1;
@@ -1477,8 +1480,8 @@ void bss_cap_update_on_sta_join23a(struct rtw_adapter *padapter, struct sta_info
 	if (psta->flags & WLAN_STA_HT) {
 		u16 ht_capab = le16_to_cpu(psta->htpriv.ht_cap.cap_info);
 
-		DBG_8723A("HT: STA " MAC_FMT " HT Capabilities "
-			   "Info: 0x%04x\n", MAC_ARG(psta->hwaddr), ht_capab);
+		DBG_8723A("HT: STA %pM HT Capabilities Info: 0x%04x\n",
+			  psta->hwaddr, ht_capab);
 
 		if (psta->no_ht_set) {
 			psta->no_ht_set = 0;
@@ -1490,10 +1493,9 @@ void bss_cap_update_on_sta_join23a(struct rtw_adapter *padapter, struct sta_info
 				psta->no_ht_gf_set = 1;
 				pmlmepriv->num_sta_ht_no_gf++;
 			}
-			DBG_8723A("%s STA " MAC_FMT " - no "
-				   "greenfield, num of non-gf stations %d\n",
-				   __func__, MAC_ARG(psta->hwaddr),
-				   pmlmepriv->num_sta_ht_no_gf);
+			DBG_8723A("%s STA %pM - no greenfield, num of non-gf stations %d\n",
+				  __func__, psta->hwaddr,
+				  pmlmepriv->num_sta_ht_no_gf);
 		}
 
 		if ((ht_capab & IEEE80211_HT_CAP_SUP_WIDTH_20_40) == 0) {
@@ -1501,10 +1503,9 @@ void bss_cap_update_on_sta_join23a(struct rtw_adapter *padapter, struct sta_info
 				psta->ht_20mhz_set = 1;
 				pmlmepriv->num_sta_ht_20mhz++;
 			}
-			DBG_8723A("%s STA " MAC_FMT " - 20 MHz HT, "
-				   "num of 20MHz HT STAs %d\n",
-				   __func__, MAC_ARG(psta->hwaddr),
-				   pmlmepriv->num_sta_ht_20mhz);
+			DBG_8723A("%s STA %pM - 20 MHz HT, num of 20MHz HT STAs %d\n",
+				  __func__, psta->hwaddr,
+				  pmlmepriv->num_sta_ht_20mhz);
 		}
 
 	} else {
@@ -1513,10 +1514,9 @@ void bss_cap_update_on_sta_join23a(struct rtw_adapter *padapter, struct sta_info
 			pmlmepriv->num_sta_no_ht++;
 		}
 		if (pmlmepriv->htpriv.ht_option) {
-			DBG_8723A("%s STA " MAC_FMT
-				   " - no HT, num of non-HT stations %d\n",
-				   __func__, MAC_ARG(psta->hwaddr),
-				   pmlmepriv->num_sta_no_ht);
+			DBG_8723A("%s STA %pM - no HT, num of non-HT stations %d\n",
+				  __func__, psta->hwaddr,
+				  pmlmepriv->num_sta_no_ht);
 		}
 	}
 
diff --git a/drivers/staging/rtl8723au/core/rtw_cmd.c b/drivers/staging/rtl8723au/core/rtw_cmd.c
index 2447a56..46aea16 100644
--- a/drivers/staging/rtl8723au/core/rtw_cmd.c
+++ b/drivers/staging/rtl8723au/core/rtw_cmd.c
@@ -299,9 +299,8 @@ post_process:
 		pcmd_callback =	rtw_cmd_callback[pcmd->cmdcode].callback;
 		if (!pcmd_callback) {
 			RT_TRACE(_module_rtl871x_cmd_c_, _drv_info_,
-				 ("mlme_cmd_hdl(): pcmd_callback = 0x%p, "
-				  "cmdcode = 0x%x\n",
-				  pcmd_callback, pcmd->cmdcode));
+				 "mlme_cmd_hdl(): pcmd_callback = 0x%p, cmdcode = 0x%x\n",
+				 pcmd_callback, pcmd->cmdcode);
 			rtw_free_cmd_obj23a(pcmd);
 		} else {
 			/* need consider that free cmd_obj in
@@ -310,8 +309,8 @@ post_process:
 		}
 	} else {
 		RT_TRACE(_module_rtl871x_cmd_c_, _drv_err_,
-			 ("%s: cmdcode = 0x%x callback not defined!\n",
-			  __func__, pcmd->cmdcode));
+			 "%s: cmdcode = 0x%x callback not defined!\n",
+			 __func__, pcmd->cmdcode);
 		rtw_free_cmd_obj23a(pcmd);
 	}
 }
@@ -343,7 +342,7 @@ int rtw_sitesurvey_cmd23a(struct rtw_adapter *padapter,
 	rtw_free_network_queue23a(padapter);
 
 	RT_TRACE(_module_rtl871x_cmd_c_, _drv_info_,
-		 ("%s: flush network queue\n", __func__));
+		 "%s: flush network queue\n", __func__);
 
 	init_h2fwcmd_w_parm_no_rsp(ph2c, psurveyPara,
 				   GEN_CMD_CODE(_SiteSurvey));
@@ -412,12 +411,12 @@ int rtw_createbss_cmd23a(struct rtw_adapter  *padapter)
 
 	if (pmlmepriv->assoc_ssid.ssid_len == 0) {
 		RT_TRACE(_module_rtl871x_cmd_c_, _drv_info_,
-			 (" createbss for Any SSid:%s\n",
-			  pmlmepriv->assoc_ssid.ssid));
+			 "createbss for Any SSid:%s\n",
+			 pmlmepriv->assoc_ssid.ssid);
 	} else {
 		RT_TRACE(_module_rtl871x_cmd_c_, _drv_info_,
-			 (" createbss for SSid:%s\n",
-			  pmlmepriv->assoc_ssid.ssid));
+			 "createbss for SSid:%s\n",
+			 pmlmepriv->assoc_ssid.ssid);
 	}
 
 	pcmd = kzalloc(sizeof(struct cmd_obj), GFP_ATOMIC);
@@ -460,19 +459,18 @@ int rtw_joinbss_cmd23a(struct rtw_adapter *padapter,
 
 	if (pmlmepriv->assoc_ssid.ssid_len == 0) {
 		RT_TRACE(_module_rtl871x_cmd_c_, _drv_info_,
-			 ("+Join cmd: Any SSid\n"));
+			 "+Join cmd: Any SSid\n");
 	} else {
 		RT_TRACE(_module_rtl871x_cmd_c_, _drv_notice_,
-			 ("+Join cmd: SSid =[%s]\n",
-			  pmlmepriv->assoc_ssid.ssid));
+			 "+Join cmd: SSid =[%s]\n",
+			 pmlmepriv->assoc_ssid.ssid);
 	}
 
 	pcmd = kzalloc(sizeof(struct cmd_obj), GFP_ATOMIC);
 	if (!pcmd) {
 		res = _FAIL;
 		RT_TRACE(_module_rtl871x_cmd_c_, _drv_err_,
-			 ("rtw_joinbss_cmd23a: memory allocate for cmd_obj "
-			  "fail!!!\n"));
+			 "rtw_joinbss_cmd23a: memory allocate for cmd_obj fail!!!\n");
 		goto exit;
 	}
 
@@ -497,7 +495,7 @@ int rtw_joinbss_cmd23a(struct rtw_adapter *padapter,
 		res = _FAIL;
 
 		RT_TRACE(_module_rtl871x_cmd_c_, _drv_err_,
-			 ("rtw_joinbss_cmd23a :psecnetwork == NULL!!!\n"));
+			 "rtw_joinbss_cmd23a :psecnetwork == NULL!!!\n");
 
 		goto exit;
 	}
@@ -599,7 +597,7 @@ int rtw_disassoc_cmd23a(struct rtw_adapter *padapter, u32 deauth_timeout_ms,
 	int res = _SUCCESS;
 
 	RT_TRACE(_module_rtl871x_cmd_c_, _drv_notice_,
-		 ("+rtw_disassoc_cmd23a\n"));
+		 "+rtw_disassoc_cmd23a\n");
 
 	/* prepare cmd parameter */
 	param = kzalloc(sizeof(*param), GFP_ATOMIC);
@@ -1291,8 +1289,7 @@ void rtw_survey_cmd_callback23a(struct rtw_adapter *padapter,
 		mod_timer(&pmlmepriv->scan_to_timer,
 			  jiffies + msecs_to_jiffies(1));
 		RT_TRACE(_module_rtl871x_cmd_c_, _drv_err_,
-			 ("\n ********Error: MgntActrtw_set_802_11_bssid23a_"
-			  "LIST_SCAN Fail ************\n\n."));
+			 "********Error: MgntActrtw_set_802_11_bssid23a_LIST_SCAN Fail ************\n");
 	}
 
 	/*  free cmd */
@@ -1309,7 +1306,7 @@ void rtw_disassoc_cmd23a_callback(struct rtw_adapter *padapter,
 		set_fwstate(pmlmepriv, _FW_LINKED);
 		spin_unlock_bh(&pmlmepriv->lock);
 		RT_TRACE(_module_rtl871x_cmd_c_, _drv_err_,
-			 ("\n ***Error: disconnect_cmd_callback Fail ***\n."));
+			 "***Error: disconnect_cmd_callback Fail ***\n");
 		return;
 	}
 
@@ -1329,8 +1326,7 @@ void rtw_joinbss_cmd23a_callback(struct rtw_adapter *padapter,
 			  jiffies + msecs_to_jiffies(1));
 	} else if (pcmd->res != H2C_SUCCESS) {
 		RT_TRACE(_module_rtl871x_cmd_c_, _drv_err_,
-			 ("********Error:rtw_select_and_join_from_scanned_"
-			  "queue Wait Sema  Fail ************\n"));
+			 "********Error:rtw_select_and_join_from_scanned_queue Wait Sema  Fail ************\n");
 		mod_timer(&pmlmepriv->assoc_timer,
 			  jiffies + msecs_to_jiffies(1));
 	}
@@ -1349,8 +1345,7 @@ void rtw_createbss_cmd23a_callback(struct rtw_adapter *padapter,
 
 	if (pcmd->res != H2C_SUCCESS) {
 		RT_TRACE(_module_rtl871x_cmd_c_, _drv_err_,
-			 ("\n ********Error: rtw_createbss_cmd23a_callback  "
-			  "Fail ************\n\n."));
+			 "********Error: rtw_createbss_cmd23a_callback  Fail ************\n");
 		mod_timer(&pmlmepriv->assoc_timer,
 			  jiffies + msecs_to_jiffies(1));
 	}
@@ -1366,9 +1361,8 @@ void rtw_createbss_cmd23a_callback(struct rtw_adapter *padapter,
 						    GFP_KERNEL);
 			if (!psta) {
 				RT_TRACE(_module_rtl871x_cmd_c_, _drv_err_,
-					 ("\nCan't alloc sta_info when "
-					  "createbss_cmd_callback\n"));
-				goto createbss_cmd_fail ;
+					 "Can't alloc sta_info when createbss_cmd_callback\n");
+				goto createbss_cmd_fail;
 			}
 		}
 
@@ -1382,8 +1376,7 @@ void rtw_createbss_cmd23a_callback(struct rtw_adapter *padapter,
 			pwlan = rtw_get_oldest_wlan_network23a(&pmlmepriv->scanned_queue);
 			if (!pwlan) {
 				RT_TRACE(_module_rtl871x_cmd_c_, _drv_err_,
-					 ("\n Error:  can't get pwlan in "
-					  "rtw23a_joinbss_event_cb\n"));
+					 "Error:  can't get pwlan in rtw23a_joinbss_event_cb\n");
 				spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
 				goto createbss_cmd_fail;
 			}
@@ -1432,8 +1425,7 @@ void rtw_setstaKey_cmdrsp_callback23a(struct rtw_adapter *padapter,
 
 	if (!psta) {
 		RT_TRACE(_module_rtl871x_cmd_c_, _drv_err_,
-			 ("\nERROR: rtw_setstaKey_cmdrsp_callback23a => "
-			  "can't get sta_info\n\n"));
+			 "ERROR: rtw_setstaKey_cmdrsp_callback23a => can't get sta_info\n");
 		goto exit;
 	}
 
@@ -1457,8 +1449,7 @@ void rtw_setassocsta_cmdrsp_callback23a(struct rtw_adapter *padapter,
 
 	if (psta == NULL) {
 		RT_TRACE(_module_rtl871x_cmd_c_, _drv_err_,
-			 ("\nERROR: setassocsta_cmdrsp_callbac => can't "
-			  "get sta_info\n\n"));
+			 "ERROR: setassocsta_cmdrsp_callbac => can't get sta_info\n");
 		goto exit;
 	}
 
diff --git a/drivers/staging/rtl8723au/core/rtw_efuse.c b/drivers/staging/rtl8723au/core/rtw_efuse.c
index a6deddc..92a34db 100644
--- a/drivers/staging/rtl8723au/core/rtw_efuse.c
+++ b/drivers/staging/rtl8723au/core/rtw_efuse.c
@@ -304,8 +304,7 @@ EFUSE_Read1Byte23a(struct rtw_adapter *Adapter, u16 Address)
 		}
 		data = rtl8723au_read8(Adapter, EFUSE_CTRL);
 		return data;
-	}
-	else
+	} else
 		return 0xFF;
 }/* EFUSE_Read1Byte23a */
 
@@ -336,7 +335,6 @@ EFUSE_Write1Byte(struct rtw_adapter *Adapter, u16 Address, u8 Value)
 	u32	k = 0;
 	u16	contentLen = 0;
 
-	/* RT_TRACE(COMP_EFUSE, DBG_LOUD, ("Addr =%x Data =%x\n", Address, Value)); */
 	EFUSE_GetEfuseDefinition23a(Adapter, EFUSE_WIFI,
 				 TYPE_EFUSE_REAL_CONTENT_LEN,
 				 (void *)&contentLen);
@@ -405,8 +403,6 @@ efuse_OneByteWrite23a(struct rtw_adapter *pAdapter, u16 addr, u8 data)
 	u8	tmpidx = 0;
 	int	bResult;
 
-	/* RT_TRACE(COMP_EFUSE, DBG_LOUD, ("Addr = %x Data =%x\n", addr, data)); */
-
 	/* return	0; */
 
 	/*  -----------------e-fuse reg ctrl --------------------------------- */
diff --git a/drivers/staging/rtl8723au/core/rtw_ieee80211.c b/drivers/staging/rtl8723au/core/rtw_ieee80211.c
index bbbcfc8..cdd7bc4 100644
--- a/drivers/staging/rtl8723au/core/rtw_ieee80211.c
+++ b/drivers/staging/rtl8723au/core/rtw_ieee80211.c
@@ -472,8 +472,8 @@ int rtw_parse_wpa_ie23a(const u8* wpa_ie, int wpa_ie_len, int *group_cipher, int
 		left -= WPA_SELECTOR_LEN;
 	} else if (left > 0) {
 		RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
-			 ("%s: ie length mismatch, %u too much",
-			  __func__, left));
+			 "%s: ie length mismatch, %u too much\n",
+			 __func__, left);
 
 		return _FAIL;
 	}
@@ -487,9 +487,8 @@ int rtw_parse_wpa_ie23a(const u8* wpa_ie, int wpa_ie_len, int *group_cipher, int
 
 		if (count == 0 || left < count * WPA_SELECTOR_LEN) {
 			RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
-				 ("%s: ie count botch (pairwise), "
-				  "count %u left %u", __func__,
-				  count, left));
+				 "%s: ie count botch (pairwise), count %u left %u\n",
+				 __func__, count, left);
 			return _FAIL;
 		}
 
@@ -501,7 +500,7 @@ int rtw_parse_wpa_ie23a(const u8* wpa_ie, int wpa_ie_len, int *group_cipher, int
 		}
 	} else if (left == 1) {
 		RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
-			 ("%s: ie too short (for key mgmt)", __func__));
+			 "%s: ie too short (for key mgmt)\n", __func__);
 		return _FAIL;
 	}
 
@@ -510,8 +509,8 @@ int rtw_parse_wpa_ie23a(const u8* wpa_ie, int wpa_ie_len, int *group_cipher, int
 			pos += 2;
 			if (!memcmp(pos, RTW_WPA_OUI23A_TYPE, 4)) {
 				RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_,
-					 ("%s : there has 802.1x auth\n",
-					  __func__));
+					 "%s : there has 802.1x auth\n",
+					 __func__);
 				*is_8021x = 1;
 			}
 		}
@@ -549,8 +548,8 @@ int rtw_parse_wpa2_ie23a(const u8 *rsn_ie, int rsn_ie_len, int *group_cipher,
 		left -= RSN_SELECTOR_LEN;
 	} else if (left > 0) {
 		RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
-			 ("%s: ie length mismatch, %u too much",
-			  __func__, left));
+			 "%s: ie length mismatch, %u too much\n",
+			 __func__, left);
 		return _FAIL;
 	}
 
@@ -563,9 +562,8 @@ int rtw_parse_wpa2_ie23a(const u8 *rsn_ie, int rsn_ie_len, int *group_cipher,
 
 		if (count == 0 || left < count * RSN_SELECTOR_LEN) {
 			RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
-				 ("%s: ie count botch (pairwise), "
-				  "count %u left %u",
-				  __func__, count, left));
+				 "%s: ie count botch (pairwise), count %u left %u\n",
+				 __func__, count, left);
 			return _FAIL;
 		}
 
@@ -577,7 +575,7 @@ int rtw_parse_wpa2_ie23a(const u8 *rsn_ie, int rsn_ie_len, int *group_cipher,
 		}
 	} else if (left == 1) {
 		RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
-			 ("%s: ie too short (for key mgmt)",  __func__));
+			 "%s: ie too short (for key mgmt)\n",  __func__);
 
 		return _FAIL;
 	}
@@ -587,8 +585,8 @@ int rtw_parse_wpa2_ie23a(const u8 *rsn_ie, int rsn_ie_len, int *group_cipher,
 			pos += 2;
 			if (!memcmp(pos, SUITE_1X, 4)) {
 				RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_,
-					 ("%s (): there has 802.1x auth\n",
-					  __func__));
+					 "%s (): there has 802.1x auth\n",
+					 __func__);
 				*is_8021x = 1;
 			}
 		}
@@ -700,7 +698,7 @@ static int rtw_get_cipher_info(struct wlan_network *pnetwork)
 
 	if (pbuf && pbuf[1] > 0) {
 		RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_,
-			 ("rtw_get_cipher_info: wpa_ielen: %d", pbuf[1]));
+			 "rtw_get_cipher_info: wpa_ielen: %d\n", pbuf[1]);
 		r = rtw_parse_wpa_ie23a(pbuf, pbuf[1] + 2, &group_cipher,
 				     &pairwise_cipher, &is8021x);
 		if (r == _SUCCESS) {
@@ -708,10 +706,9 @@ static int rtw_get_cipher_info(struct wlan_network *pnetwork)
 			pnetwork->BcnInfo.group_cipher = group_cipher;
 			pnetwork->BcnInfo.is_8021x = is8021x;
 			RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_,
-				 ("%s: pnetwork->pairwise_cipher: %d, is_"
-				  "8021x is %d", __func__,
-				  pnetwork->BcnInfo.pairwise_cipher,
-				  pnetwork->BcnInfo.is_8021x));
+				 "%s: pnetwork->pairwise_cipher: %d, is_8021x is %d\n",
+				 __func__, pnetwork->BcnInfo.pairwise_cipher,
+				 pnetwork->BcnInfo.is_8021x);
 			ret = _SUCCESS;
 		}
 	} else {
@@ -719,24 +716,23 @@ static int rtw_get_cipher_info(struct wlan_network *pnetwork)
 
 		if (pbuf && pbuf[1] > 0) {
 			RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_,
-				 ("get RSN IE\n"));
+				 "get RSN IE\n");
 			r = rtw_parse_wpa2_ie23a(pbuf, pbuf[1] + 2,
 					      &group_cipher, &pairwise_cipher,
 					      &is8021x);
 			if (r == _SUCCESS) {
 				RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_,
-					 ("get RSN IE  OK!!!\n"));
+					 "get RSN IE  OK!!!\n");
 				pnetwork->BcnInfo.pairwise_cipher =
 					pairwise_cipher;
 				pnetwork->BcnInfo.group_cipher = group_cipher;
 				pnetwork->BcnInfo.is_8021x = is8021x;
 				RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_,
-					 ("%s: pnetwork->pairwise_cipher: %d,"
-					  "pnetwork->group_cipher is %d, "
-					  "is_8021x is %d", __func__,
-					  pnetwork->BcnInfo.pairwise_cipher,
-					  pnetwork->BcnInfo.group_cipher,
-					  pnetwork->BcnInfo.is_8021x));
+					 "%s: pnetwork->pairwise_cipher: %d,pnetwork->group_cipher is %d, is_8021x is %d\n",
+					 __func__,
+					 pnetwork->BcnInfo.pairwise_cipher,
+					 pnetwork->BcnInfo.group_cipher,
+					 pnetwork->BcnInfo.is_8021x);
 				ret = _SUCCESS;
 			}
 		}
@@ -759,7 +755,7 @@ void rtw_get_bcn_info23a(struct wlan_network *pnetwork)
 		pnetwork->BcnInfo.encryp_protocol = ENCRYP_PROTOCOL_OPENSYS;
 
 	RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_,
-		 ("%s: ssid =%s\n", __func__, pnetwork->network.Ssid.ssid));
+		 "%s: ssid =%s\n", __func__, pnetwork->network.Ssid.ssid);
 
 	pie = pnetwork->network.IEs;
 	pie_len = pnetwork->network.IELength;
@@ -776,11 +772,11 @@ void rtw_get_bcn_info23a(struct wlan_network *pnetwork)
 			pnetwork->BcnInfo.encryp_protocol = ENCRYP_PROTOCOL_WEP;
 	}
 	RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_,
-		 ("%s: pnetwork->encryp_protocol is %x\n", __func__,
-		  pnetwork->BcnInfo.encryp_protocol));
+		 "%s: pnetwork->encryp_protocol is %x\n", __func__,
+		 pnetwork->BcnInfo.encryp_protocol);
 	RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_,
-		 ("%s: pnetwork->encryp_protocol is %x\n", __func__,
-		  pnetwork->BcnInfo.encryp_protocol));
+		 "%s: pnetwork->encryp_protocol is %x\n", __func__,
+		 pnetwork->BcnInfo.encryp_protocol);
 	rtw_get_cipher_info(pnetwork);
 
 	/* get bwmode and ch_offset */
diff --git a/drivers/staging/rtl8723au/core/rtw_mlme.c b/drivers/staging/rtl8723au/core/rtw_mlme.c
index 7299ef0..3c09ea9 100644
--- a/drivers/staging/rtl8723au/core/rtw_mlme.c
+++ b/drivers/staging/rtl8723au/core/rtw_mlme.c
@@ -94,7 +94,7 @@ void rtw23a_free_mlme_priv_ie_data(struct mlme_priv *pmlmepriv)
 void rtw_free_mlme_priv23a(struct mlme_priv *pmlmepriv)
 {
 	RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
-		 ("rtw_free_mlme_priv23a\n"));
+		 "rtw_free_mlme_priv23a\n");
 
 	rtw23a_free_mlme_priv_ie_data(pmlmepriv);
 }
@@ -196,9 +196,8 @@ int rtw_if_up23a(struct rtw_adapter *padapter)
 	if (padapter->bDriverStopped || padapter->bSurpriseRemoved ||
 	    !check_fwstate(&padapter->mlmepriv, _FW_LINKED)) {
 		RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_,
-			 ("rtw_if_up23a:bDriverStopped(%d) OR "
-			  "bSurpriseRemoved(%d)", padapter->bDriverStopped,
-			  padapter->bSurpriseRemoved));
+			 "rtw_if_up23a:bDriverStopped(%d) OR bSurpriseRemoved(%d)\n",
+			 padapter->bDriverStopped, padapter->bSurpriseRemoved);
 		res = false;
 	} else
 		res =  true;
@@ -238,9 +237,9 @@ static void _rtw_roaming(struct rtw_adapter *padapter,
 		pnetwork = &pmlmepriv->cur_network;
 
 	if (padapter->mlmepriv.to_roaming > 0) {
-		DBG_8723A("roaming from %s("MAC_FMT"), length:%d\n",
+		DBG_8723A("roaming from %s(%pM), length:%d\n",
 			  pnetwork->network.Ssid.ssid,
-			  MAC_ARG(pnetwork->network.MacAddress),
+			  pnetwork->network.MacAddress,
 			  pnetwork->network.Ssid.ssid_len);
 		memcpy(&pmlmepriv->assoc_ssid, &pnetwork->network.Ssid,
 		       sizeof(struct cfg80211_ssid));
@@ -466,7 +465,7 @@ static void rtw_update_scanned_network(struct rtw_adapter *adapter,
 		if (!pnetwork) {
 			if (!oldest) {
 				RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
-					 ("\n\n\nsomething wrong here\n\n\n"));
+					 "something wrong here\n");
 				goto exit;
 			}
 			pnetwork = oldest;
@@ -568,13 +567,6 @@ static int rtw_is_desired_network(struct rtw_adapter *adapter,
 	return bselected;
 }
 
-/* TODO: Perry : For Power Management */
-void rtw_atimdone_event_callback23a(struct rtw_adapter *adapter, const u8 *pbuf)
-{
-	RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
-		 ("receive atimdone_evet\n"));
-}
-
 void rtw_survey_event_cb23a(struct rtw_adapter *adapter, const u8 *pbuf)
 {
 	u32 len;
@@ -585,13 +577,12 @@ void rtw_survey_event_cb23a(struct rtw_adapter *adapter, const u8 *pbuf)
 	pnetwork = survey->bss;
 
 	RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_,
-		 ("rtw_survey_event_cb23a, ssid=%s\n", pnetwork->Ssid.ssid));
+		 "rtw_survey_event_cb23a, ssid=%s\n", pnetwork->Ssid.ssid);
 
 	len = get_wlan_bssid_ex_sz(pnetwork);
 	if (len > (sizeof(struct wlan_bssid_ex))) {
 		RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
-			 ("\n ****rtw_survey_event_cb23a: return a wrong "
-			  "bss ***\n"));
+			 "****rtw_survey_event_cb23a: return a wrong bss ***\n");
 		return;
 	}
 
@@ -599,8 +590,6 @@ void rtw_survey_event_cb23a(struct rtw_adapter *adapter, const u8 *pbuf)
 
 	/*  update IBSS_network 's timestamp */
 	if (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE)) {
-		/* RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
-		   "rtw_survey_event_cb23a : WIFI_ADHOC_MASTER_STATE\n\n"); */
 		if (ether_addr_equal(pmlmepriv->cur_network.network.MacAddress,
 				     pnetwork->MacAddress)) {
 			struct wlan_network *ibss_wlan;
@@ -660,8 +649,8 @@ rtw_surveydone_event_callback23a(struct rtw_adapter *adapter, const u8 *pbuf)
 	}
 
 	RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_,
-		 ("rtw_surveydone_event_callback23a: fw_state:%x\n\n",
-		  get_fwstate(pmlmepriv)));
+		 "rtw_surveydone_event_callback23a: fw_state:%x\n",
+		 get_fwstate(pmlmepriv));
 
 	if (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY)) {
 		del_timer_sync(&pmlmepriv->scan_to_timer);
@@ -669,8 +658,8 @@ rtw_surveydone_event_callback23a(struct rtw_adapter *adapter, const u8 *pbuf)
 		_clr_fwstate_(pmlmepriv, _FW_UNDER_SURVEY);
 	} else {
 		RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
-			 ("nic status =%x, survey done event comes too late!\n",
-			  get_fwstate(pmlmepriv)));
+			 "nic status =%x, survey done event comes too late!\n",
+			 get_fwstate(pmlmepriv));
 	}
 
 	rtw_set_signal_stat_timer(&adapter->recvpriv);
@@ -725,7 +714,7 @@ static void free_scanqueue(struct mlme_priv *pmlmepriv)
 	struct rtw_queue *scan_queue = &pmlmepriv->scanned_queue;
 	struct list_head *plist, *phead, *ptemp;
 
-	RT_TRACE(_module_rtl871x_mlme_c_, _drv_notice_, ("+free_scanqueue\n"));
+	RT_TRACE(_module_rtl871x_mlme_c_, _drv_notice_, "+free_scanqueue\n");
 	spin_lock_bh(&scan_queue->lock);
 
 	phead = get_list_head(scan_queue);
@@ -752,11 +741,11 @@ void rtw_free_assoc_resources23a(struct rtw_adapter *adapter,
 	struct sta_info *psta;
 
 	RT_TRACE(_module_rtl871x_mlme_c_, _drv_notice_,
-		 ("+rtw_free_assoc_resources23a\n"));
+		 "+rtw_free_assoc_resources23a\n");
 	RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_,
-		 ("tgt_network->network.MacAddress="MAC_FMT" ssid=%s\n",
-		  MAC_ARG(tgt_network->network.MacAddress),
-		  tgt_network->network.Ssid.ssid));
+		 "tgt_network->network.MacAddress=%pM ssid=%s\n",
+		 tgt_network->network.MacAddress,
+		 tgt_network->network.Ssid.ssid);
 
 	if (check_fwstate(pmlmepriv, WIFI_STATION_STATE|WIFI_AP_STATE)) {
 		psta = rtw_get_stainfo23a(&adapter->stapriv,
@@ -788,7 +777,7 @@ void rtw_free_assoc_resources23a(struct rtw_adapter *adapter,
 		pwlan->fixed = false;
 	else
 		RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
-			 ("rtw_free_assoc_resources23a : pwlan== NULL\n"));
+			 "rtw_free_assoc_resources23a : pwlan== NULL\n");
 
 	if (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) &&
 	    adapter->stapriv.asoc_sta_count == 1)
@@ -808,7 +797,7 @@ void rtw_indicate_connect23a(struct rtw_adapter *padapter)
 	struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
 
 	RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
-		 ("+rtw_indicate_connect23a\n"));
+		 "+rtw_indicate_connect23a\n");
 
 	pmlmepriv->to_join = false;
 
@@ -828,8 +817,8 @@ void rtw_indicate_connect23a(struct rtw_adapter *padapter)
 	rtw_set_scan_deny(padapter, 3000);
 
 	RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
-		 ("-rtw_indicate_connect23a: fw_state=0x%08x\n",
-		  get_fwstate(pmlmepriv)));
+		 "-rtw_indicate_connect23a: fw_state=0x%08x\n",
+		 get_fwstate(pmlmepriv));
 }
 
 /*
@@ -840,7 +829,7 @@ void rtw_indicate_disconnect23a(struct rtw_adapter *padapter)
 	struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
 
 	RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
-		 ("+rtw_indicate_disconnect23a\n"));
+		 "+rtw_indicate_disconnect23a\n");
 
 	_clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING|WIFI_UNDER_WPS);
 
@@ -998,8 +987,9 @@ rtw_joinbss_update_network23a(struct rtw_adapter *padapter,
 	DBG_8723A("%s\n", __func__);
 
 	RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_,
-		 ("\nfw_state:%x, BSSID:"MAC_FMT"\n", get_fwstate(pmlmepriv),
-		  MAC_ARG(pnetwork->network.MacAddress)));
+		 "fw_state:%x, BSSID:%pM\n",
+		 get_fwstate(pmlmepriv),
+		 pnetwork->network.MacAddress);
 
 	/*  why not use ptarget_wlan?? */
 	memcpy(&cur_network->network, &pnetwork->network,
@@ -1042,7 +1032,7 @@ rtw_joinbss_update_network23a(struct rtw_adapter *padapter,
 	default:
 		pmlmepriv->fw_state = WIFI_NULL_STATE;
 		RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
-			 ("Invalid network_mode\n"));
+			 "Invalid network_mode\n");
 		break;
 	}
 
@@ -1077,16 +1067,16 @@ void rtw_joinbss_event_prehandle23a(struct rtw_adapter *adapter, u8 *pbuf)
 	bool the_same_macaddr;
 
 	RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_,
-		 ("joinbss event call back received with res=%d\n",
-		  pnetwork->join_res));
+		 "joinbss event call back received with res=%d\n",
+		 pnetwork->join_res);
 
 	if (pmlmepriv->assoc_ssid.ssid_len == 0) {
 		RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
-			 ("@@@@@   joinbss event call back  for Any SSid\n"));
+			 "@@@@@   joinbss event call back  for Any SSid\n");
 	} else {
 		RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
-			 ("@@@@@   rtw23a_joinbss_event_cb for SSid:%s\n",
-			  pmlmepriv->assoc_ssid.ssid));
+			 "@@@@@   rtw23a_joinbss_event_cb for SSid:%s\n",
+			 pmlmepriv->assoc_ssid.ssid);
 	}
 
 	if (ether_addr_equal(pnetwork->network.MacAddress,
@@ -1098,15 +1088,14 @@ void rtw_joinbss_event_prehandle23a(struct rtw_adapter *adapter, u8 *pbuf)
 	pnetwork->network.Length = get_wlan_bssid_ex_sz(&pnetwork->network);
 	if (pnetwork->network.Length > sizeof(struct wlan_bssid_ex)) {
 		RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
-			 ("\n\n ***joinbss_evt_callback return a wrong bss "
-			  "***\n\n"));
+			 "***joinbss_evt_callback return a wrong bss ***\n");
 		return;
 	}
 
 	spin_lock_bh(&pmlmepriv->lock);
 
 	RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_,
-		 ("\n rtw23a_joinbss_event_cb !! _enter_critical\n"));
+		 "rtw23a_joinbss_event_cb !! _enter_critical\n");
 
 	if (pnetwork->join_res > 0) {
 		spin_lock_bh(&pmlmepriv->scanned_queue.lock);
@@ -1155,8 +1144,7 @@ void rtw_joinbss_event_prehandle23a(struct rtw_adapter *adapter, u8 *pbuf)
 							      pnetwork);
 			else {
 				RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
-					 ("Can't find ptarget_wlan when "
-					  "joinbss_event callback\n"));
+					 "Can't find ptarget_wlan when joinbss_event callback\n");
 				spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
 				goto ignore_joinbss_callback;
 			}
@@ -1169,8 +1157,7 @@ void rtw_joinbss_event_prehandle23a(struct rtw_adapter *adapter, u8 *pbuf)
 				if (!ptarget_sta) {
 					RT_TRACE(_module_rtl871x_mlme_c_,
 						 _drv_err_,
-						 ("Can't update stainfo when "
-						  "joinbss_event callback\n"));
+						 "Can't update stainfo when joinbss_event callback\n");
 					spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
 					goto ignore_joinbss_callback;
 				}
@@ -1183,19 +1170,19 @@ void rtw_joinbss_event_prehandle23a(struct rtw_adapter *adapter, u8 *pbuf)
 				/* adhoc mode will rtw_indicate_connect23a
 				   when rtw_stassoc_event_callback23a */
 				RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_,
-					 ("adhoc mode, fw_state:%x",
-					  get_fwstate(pmlmepriv)));
+					 "adhoc mode, fw_state:%x\n",
+					 get_fwstate(pmlmepriv));
 			}
 
 			/* s5. Cancle assoc_timer */
 			del_timer_sync(&pmlmepriv->assoc_timer);
 
 			RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_,
-				 ("Cancle assoc_timer\n"));
+				 "Cancle assoc_timer\n");
 		} else {
 			RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
-				 ("rtw23a_joinbss_event_cb err: fw_state:%x",
-				 get_fwstate(pmlmepriv)));
+				 "rtw23a_joinbss_event_cb err: fw_state:%x\n",
+				 get_fwstate(pmlmepriv));
 			spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
 			goto ignore_joinbss_callback;
 		}
@@ -1209,8 +1196,8 @@ void rtw_joinbss_event_prehandle23a(struct rtw_adapter *adapter, u8 *pbuf)
 
 		if (check_fwstate(pmlmepriv, _FW_UNDER_LINKING)) {
 			RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
-				 ("fail! clear _FW_UNDER_LINKING ^^^fw_state="
-				  "%x\n", get_fwstate(pmlmepriv)));
+				 "fail! clear _FW_UNDER_LINKING ^^^fw_state=%x\n",
+				 get_fwstate(pmlmepriv));
 			_clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
 		}
 	} else {
@@ -1261,8 +1248,7 @@ void rtw_stassoc_event_callback23a(struct rtw_adapter *adapter, const u8 *pbuf)
 	if (psta != NULL) {
 		/* the sta have been in sta_info_queue => do nothing */
 		RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
-			 ("Error: rtw_stassoc_event_callback23a: sta has "
-			  "been in sta_hash_queue\n"));
+			 "Error: rtw_stassoc_event_callback23a: sta has been in sta_hash_queue\n");
 		/* between drv has received this event before and
 		   fw have not yet to set key to CAM_ENTRY) */
 		return;
@@ -1272,8 +1258,7 @@ void rtw_stassoc_event_callback23a(struct rtw_adapter *adapter, const u8 *pbuf)
 		GFP_KERNEL);
 	if (!psta) {
 		RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
-			 ("Can't alloc sta_info when "
-			  "rtw_stassoc_event_callback23a\n"));
+			 "Can't alloc sta_info when rtw_stassoc_event_callback23a\n");
 		return;
 	}
 
@@ -1330,8 +1315,7 @@ void rtw_stadel_event_callback23a(struct rtw_adapter *adapter, const u8 *pbuf)
 	else
 		mac_id = pstadel->mac_id;
 
-	DBG_8723A("%s(mac_id=%d)=" MAC_FMT "\n", __func__, mac_id,
-		  MAC_ARG(pstadel->macaddr));
+	DBG_8723A("%s(mac_id=%d)=%pM\n", __func__, mac_id, pstadel->macaddr);
 
 	if (check_fwstate(pmlmepriv, WIFI_AP_STATE))
 		return;
@@ -1582,13 +1566,12 @@ static int rtw_check_join_candidate(struct mlme_priv *pmlmepriv,
 	}
 
 	if (updated) {
-		DBG_8723A("[by_bssid:%u][assoc_ssid:%s][to_roaming:%u] "
-			  "new candidate: %s("MAC_FMT") rssi:%d\n",
+		DBG_8723A("[by_bssid:%u][assoc_ssid:%s][to_roaming:%u] new candidate: %s(%pM) rssi:%d\n",
 			  pmlmepriv->assoc_by_bssid,
 			  pmlmepriv->assoc_ssid.ssid,
 			  adapter->mlmepriv.to_roaming,
 			  (*candidate)->network.Ssid.ssid,
-			  MAC_ARG((*candidate)->network.MacAddress),
+			  (*candidate)->network.MacAddress,
 			  (int)(*candidate)->network.Rssi);
 	}
 
@@ -1653,8 +1636,8 @@ rtw_select_candidate_from_queue(struct mlme_priv *pmlmepriv)
 		pnetwork = container_of(plist, struct wlan_network, list);
 		if (!pnetwork) {
 			RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
-				 ("%s: return _FAIL:(pnetwork == NULL)\n",
-				  __func__));
+				 "%s: return _FAIL:(pnetwork == NULL)\n",
+				 __func__);
 			goto exit;
 		}
 
@@ -1680,7 +1663,7 @@ int rtw_do_join_adhoc(struct rtw_adapter *adapter)
 	_clr_fwstate_(pmlmepriv, _FW_UNDER_SURVEY);
 
 	RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
-		 ("switching to adhoc master\n"));
+		 "switching to adhoc master\n");
 
 	memcpy(&pdev_network->Ssid, &pmlmepriv->assoc_ssid,
 	       sizeof(struct cfg80211_ssid));
@@ -1693,7 +1676,7 @@ int rtw_do_join_adhoc(struct rtw_adapter *adapter)
 	ret = rtw_createbss_cmd23a(adapter);
 	if (ret != _SUCCESS) {
 		RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
-			 ("Error =>rtw_createbss_cmd23a status FAIL\n"));
+			 "Error =>rtw_createbss_cmd23a status FAIL\n");
 	} else  {
 		pmlmepriv->to_join = false;
 	}
@@ -1739,9 +1722,10 @@ int rtw_select_and_join_from_scanned_queue23a(struct mlme_priv *pmlmepriv)
 		ret = _FAIL;
 		goto exit;
 	} else {
-		DBG_8723A("%s: candidate: %s("MAC_FMT", ch:%u)\n", __func__,
+		DBG_8723A("%s: candidate: %s(%pM, ch:%u)\n",
+			  __func__,
 			  candidate->network.Ssid.ssid,
-			  MAC_ARG(candidate->network.MacAddress),
+			  candidate->network.MacAddress,
 			  candidate->network.DSConfig);
 	}
 
@@ -1781,8 +1765,8 @@ int rtw_set_auth23a(struct rtw_adapter *adapter,
 	pcmd->rspsz = 0;
 
 	RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
-		 ("after enqueue set_auth_cmd, auth_mode=%x\n",
-		  psecuritypriv->dot11AuthAlgrthm));
+		 "after enqueue set_auth_cmd, auth_mode=%x\n",
+		 psecuritypriv->dot11AuthAlgrthm);
 
 	res = rtw_enqueue_cmd23a(pcmdpriv, pcmd);
 
@@ -1822,15 +1806,13 @@ int rtw_set_key23a(struct rtw_adapter *adapter,
 		psetkeyparm->algorithm = (unsigned char)
 			psecuritypriv->dot118021XGrpPrivacy;
 		RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
-			 ("\n rtw_set_key23a: psetkeyparm->algorithm = "
-			  "(unsigned char)psecuritypriv->dot118021XGrpPrivacy "
-			  "=%d\n", psetkeyparm->algorithm));
+			 "rtw_set_key23a: psetkeyparm->algorithm = (unsigned char)psecuritypriv->dot118021XGrpPrivacy =%d\n",
+			 psetkeyparm->algorithm);
 	} else {
 		psetkeyparm->algorithm = (u8)psecuritypriv->dot11PrivacyAlgrthm;
 		RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
-			 ("\n rtw_set_key23a: psetkeyparm->algorithm = (u8)"
-			  "psecuritypriv->dot11PrivacyAlgrthm =%d\n",
-			  psetkeyparm->algorithm));
+			 "rtw_set_key23a: psetkeyparm->algorithm = (u8)psecuritypriv->dot11PrivacyAlgrthm =%d\n",
+			 psetkeyparm->algorithm);
 	}
 	psetkeyparm->keyid = keyid;/* 0~3 */
 	psetkeyparm->set_tx = set_tx;
@@ -1841,8 +1823,8 @@ int rtw_set_key23a(struct rtw_adapter *adapter,
 		  psetkeyparm->algorithm, psetkeyparm->keyid,
 		  pmlmepriv->key_mask);
 	RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
-		 ("\n rtw_set_key23a: psetkeyparm->algorithm =%d psetkeyparm->"
-		  "keyid = (u8)keyid =%d\n", psetkeyparm->algorithm, keyid));
+		 "rtw_set_key23a: psetkeyparm->algorithm =%d psetkeyparm->keyid = (u8)keyid =%d\n",
+		 psetkeyparm->algorithm, keyid);
 
 	switch (psetkeyparm->algorithm) {
 	case WLAN_CIPHER_SUITE_WEP40:
@@ -1869,9 +1851,8 @@ int rtw_set_key23a(struct rtw_adapter *adapter,
 		break;
 	default:
 		RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
-			 ("\n rtw_set_key23a:psecuritypriv->dot11PrivacyAlgrthm"
-			  " = %x (must be 1 or 2 or 4 or 5)\n",
-			  psecuritypriv->dot11PrivacyAlgrthm));
+			 "rtw_set_key23a:psecuritypriv->dot11PrivacyAlgrthm = %x (must be 1 or 2 or 4 or 5)\n",
+			 psecuritypriv->dot11PrivacyAlgrthm);
 		res = _FAIL;
 		kfree(pcmd);
 		kfree(psetkeyparm);
@@ -1998,8 +1979,8 @@ int rtw_restruct_sec_ie23a(struct rtw_adapter *adapter, u8 *in_ie, u8 *out_ie,
 	uint ndissecuritytype = psecuritypriv->ndisencryptstatus;
 
 	RT_TRACE(_module_rtl871x_mlme_c_, _drv_notice_,
-		 ("+rtw_restruct_sec_ie23a: ndisauthmode=%d "
-		  "ndissecuritytype=%d\n", ndisauthmode, ndissecuritytype));
+		 "+rtw_restruct_sec_ie23a: ndisauthmode=%d ndissecuritytype=%d\n",
+		 ndisauthmode, ndissecuritytype);
 
 	ielength = 0;
 	if (ndisauthmode == Ndis802_11AuthModeWPA ||
@@ -2065,8 +2046,8 @@ void rtw_update_registrypriv_dev_network23a(struct rtw_adapter *adapter)
 
 	pdev_network->DSConfig = pregistrypriv->channel;
 	RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_,
-		 ("pregistrypriv->channel =%d, pdev_network->DSConfig = 0x%x\n",
-		  pregistrypriv->channel, pdev_network->DSConfig));
+		 "pregistrypriv->channel =%d, pdev_network->DSConfig = 0x%x\n",
+		 pregistrypriv->channel, pdev_network->DSConfig);
 
 	if (cur_network->network.ifmode == NL80211_IFTYPE_ADHOC)
 		pdev_network->ATIMWindow = 0;
diff --git a/drivers/staging/rtl8723au/core/rtw_mlme_ext.c b/drivers/staging/rtl8723au/core/rtw_mlme_ext.c
index 0e0f73c..196beaf 100644
--- a/drivers/staging/rtl8723au/core/rtw_mlme_ext.c
+++ b/drivers/staging/rtl8723au/core/rtw_mlme_ext.c
@@ -657,8 +657,8 @@ void mgt_dispatcher23a(struct rtw_adapter *padapter,
 
 	if (index > 13) {
 		RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
-			 ("Currently we do not support reserved sub-fr-type ="
-			  "%d\n", index));
+			 "Currently we do not support reserved sub-fr-type =%d\n",
+			 index);
 		return;
 	}
 	ptable += index;
@@ -968,8 +968,7 @@ OnAuth23a(struct rtw_adapter *padapter, struct recv_frame *precv_frame)
 	pstat = rtw_get_stainfo23a(pstapriv, sa);
 	if (!pstat) {
 		/*  allocate a new one */
-		DBG_8723A("going to alloc stainfo for sa ="MAC_FMT"\n",
-			  MAC_ARG(sa));
+		DBG_8723A("going to alloc stainfo for sa =%pM\n", sa);
 		pstat = rtw_alloc_stainfo23a(pstapriv, sa, GFP_ATOMIC);
 		if (!pstat) {
 			DBG_8723A(" Exceed the upper limit of supported "
@@ -1396,8 +1395,8 @@ OnAssocReq23a(struct rtw_adapter *padapter, struct recv_frame *precv_frame)
 	/* now parse all ieee802_11 ie to point to elems */
 
 	if (rtw_validate_frame_ies(pos, left)) {
-		DBG_8723A("STA " MAC_FMT " sent invalid association request\n",
-			  MAC_ARG(pstat->hwaddr));
+		DBG_8723A("STA %pM sent invalid association request\n",
+			  pstat->hwaddr);
 		status = WLAN_STATUS_UNSPECIFIED_FAILURE;
 		goto OnAssocReq23aFail;
 	}
@@ -1407,8 +1406,8 @@ OnAssocReq23a(struct rtw_adapter *padapter, struct recv_frame *precv_frame)
 	p = cfg80211_find_ie(WLAN_EID_SSID, pos, left);
 	if (!p || p[1] == 0) {
 		/*  broadcast ssid, however it is not allowed in assocreq */
-		DBG_8723A("STA " MAC_FMT " sent invalid association request "
-			  "lacking an SSID\n", MAC_ARG(pstat->hwaddr));
+		DBG_8723A("STA %pM sent invalid association request lacking an SSID\n",
+			  pstat->hwaddr);
 		status = WLAN_STATUS_UNSPECIFIED_FAILURE;
 		goto OnAssocReq23aFail;
 	} else {
@@ -1537,9 +1536,8 @@ OnAssocReq23a(struct rtw_adapter *padapter, struct recv_frame *precv_frame)
 		int copy_len;
 
 		if (psecuritypriv->wpa_psk == 0) {
-			DBG_8723A("STA " MAC_FMT ": WPA/RSN IE in association "
-			"request, but AP don't support WPA/RSN\n",
-				  MAC_ARG(pstat->hwaddr));
+			DBG_8723A("STA %pM: WPA/RSN IE in association request, but AP don't support WPA/RSN\n",
+				  pstat->hwaddr);
 
 			status = WLAN_STATUS_INVALID_IE;
 
@@ -1614,8 +1612,8 @@ OnAssocReq23a(struct rtw_adapter *padapter, struct recv_frame *precv_frame)
 					else
 						pstat->uapsd_be = 0;
 
+					break;
 				}
-				break;
 			} else {
 				break;
 			}
@@ -1645,8 +1643,8 @@ OnAssocReq23a(struct rtw_adapter *padapter, struct recv_frame *precv_frame)
 	if (pstat->flags & WLAN_STA_HT &&
 	    (pstat->wpa2_pairwise_cipher & WPA_CIPHER_TKIP ||
 	     pstat->wpa_pairwise_cipher & WPA_CIPHER_TKIP)) {
-		DBG_8723A("HT: " MAC_FMT " tried to use TKIP with HT "
-			  "association\n", MAC_ARG(pstat->hwaddr));
+		DBG_8723A("HT: %pM tried to use TKIP with HT association\n",
+			  pstat->hwaddr);
 
 		/* status = WLAN_STATUS_CIPHER_REJECTED_PER_POLICY; */
 		/* goto OnAssocReq23aFail; */
@@ -2687,7 +2685,7 @@ static int _issue_probereq(struct rtw_adapter *padapter,
 	u8 bc_addr[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 
 	RT_TRACE(_module_rtl871x_mlme_c_, _drv_notice_,
-		 ("+%s\n", __func__));
+		 "+%s\n", __func__);
 
 	pmgntframe = alloc_mgtxmitframe23a(pxmitpriv);
 	if (!pmgntframe)
@@ -2758,7 +2756,7 @@ static int _issue_probereq(struct rtw_adapter *padapter,
 	pattrib->last_txcmdsz = pattrib->pktlen;
 
 	RT_TRACE(_module_rtl871x_mlme_c_, _drv_notice_,
-		 ("issuing probe_req, tx_len =%d\n", pattrib->last_txcmdsz));
+		 "issuing probe_req, tx_len =%d\n", pattrib->last_txcmdsz);
 
 	if (wait_ack) {
 		ret = dump_mgntframe23a_and_wait_ack23a(padapter, pmgntframe);
@@ -2806,17 +2804,16 @@ static int issue_probereq_ex(struct rtw_adapter *padapter,
 
 	if (try_cnt && wait_ms) {
 		if (da)
-			DBG_8723A("%s(%s): to "MAC_FMT", ch:%u%s, %d/%d "
-				  "in %u ms\n",	__func__,
-				  padapter->pnetdev->name,
-				  MAC_ARG(da), rtw_get_oper_ch23a(padapter),
-				  ret == _SUCCESS?", acked":"", i, try_cnt,
+			DBG_8723A("%s(%s): to %pM, ch:%u%s, %d/%d in %u ms\n",
+				  __func__, padapter->pnetdev->name,
+				  da, rtw_get_oper_ch23a(padapter),
+				  ret == _SUCCESS ? ", acked" : "", i, try_cnt,
 				  jiffies_to_msecs(jiffies - start));
 		else
 			DBG_8723A("%s(%s):, ch:%u%s, %d/%d in %u ms\n",
 				  __func__, padapter->pnetdev->name,
 				  rtw_get_oper_ch23a(padapter),
-				  ret == _SUCCESS?", acked":"", i, try_cnt,
+				  ret == _SUCCESS ? ", acked" : "", i, try_cnt,
 				  jiffies_to_msecs(jiffies - start));
 	}
 exit:
@@ -3460,17 +3457,16 @@ int issue_nulldata23a(struct rtw_adapter *padapter, unsigned char *da,
 
 	if (try_cnt && wait_ms) {
 		if (da)
-			DBG_8723A("%s(%s): to "MAC_FMT", ch:%u%s, %d/%d "
-				  "in %u ms\n", __func__,
-				  padapter->pnetdev->name,
-				  MAC_ARG(da), rtw_get_oper_ch23a(padapter),
-				  ret == _SUCCESS?", acked":"", i, try_cnt,
+			DBG_8723A("%s(%s): to %pM, ch:%u%s, %d/%d in %u ms\n",
+				  __func__, padapter->pnetdev->name,
+				  da, rtw_get_oper_ch23a(padapter),
+				  ret == _SUCCESS ? ", acked" : "", i, try_cnt,
 				  jiffies_to_msecs(jiffies - start));
 		else
 			DBG_8723A("%s(%s):, ch:%u%s, %d/%d in %u ms\n",
 				  __func__, padapter->pnetdev->name,
 				  rtw_get_oper_ch23a(padapter),
-				  ret == _SUCCESS?", acked":"", i, try_cnt,
+				  ret == _SUCCESS ? ", acked" : "", i, try_cnt,
 				  jiffies_to_msecs(jiffies - start));
 	}
 exit:
@@ -3587,17 +3583,16 @@ int issue_qos_nulldata23a(struct rtw_adapter *padapter, unsigned char *da,
 
 	if (try_cnt && wait_ms) {
 		if (da)
-			DBG_8723A("%s(%s): to "MAC_FMT", ch:%u%s, %d/%d "
-				  "in %u ms\n", __func__,
-				  padapter->pnetdev->name,
-				  MAC_ARG(da), rtw_get_oper_ch23a(padapter),
-				  ret == _SUCCESS?", acked":"", i, try_cnt,
+			DBG_8723A("%s(%s): to %pM, ch:%u%s, %d/%d in %u ms\n",
+				  __func__, padapter->pnetdev->name,
+				  da, rtw_get_oper_ch23a(padapter),
+				  ret == _SUCCESS ? ", acked" : "", i, try_cnt,
 				  jiffies_to_msecs(jiffies - start));
 		else
 			DBG_8723A("%s(%s):, ch:%u%s, %d/%d in %u ms\n",
 				  __func__, padapter->pnetdev->name,
 				  rtw_get_oper_ch23a(padapter),
-				  ret == _SUCCESS?", acked":"", i, try_cnt,
+				  ret == _SUCCESS ? ", acked" : "", i, try_cnt,
 				  jiffies_to_msecs(jiffies - start));
 	}
 exit:
@@ -3615,7 +3610,7 @@ static int _issue_deauth(struct rtw_adapter *padapter, unsigned char *da,
 	struct mlme_ext_info *pmlmeinfo = &pmlmeext->mlmext_info;
 	int ret = _FAIL;
 
-	/* DBG_8723A("%s to "MAC_FMT"\n", __func__, MAC_ARG(da)); */
+	/* DBG_8723A("%s to %pM\n", __func__, da); */
 
 	pmgntframe = alloc_mgtxmitframe23a(pxmitpriv);
 	if (!pmgntframe)
@@ -3660,7 +3655,7 @@ exit:
 int issue_deauth23a(struct rtw_adapter *padapter, unsigned char *da,
 		    unsigned short reason)
 {
-	DBG_8723A("%s to "MAC_FMT"\n", __func__, MAC_ARG(da));
+	DBG_8723A("%s to %pM\n", __func__, da);
 	return _issue_deauth(padapter, da, reason, false);
 }
 
@@ -3692,17 +3687,16 @@ static int issue_deauth_ex(struct rtw_adapter *padapter, u8 *da,
 
 	if (try_cnt && wait_ms) {
 		if (da)
-			DBG_8723A("%s(%s): to "MAC_FMT", ch:%u%s, %d/%d "
-				  "in %u ms\n", __func__,
-				  padapter->pnetdev->name,
-				  MAC_ARG(da), rtw_get_oper_ch23a(padapter),
-				  ret == _SUCCESS?", acked":"", i, try_cnt,
+			DBG_8723A("%s(%s): to %pM, ch:%u%s, %d/%d in %u ms\n",
+				  __func__, padapter->pnetdev->name,
+				  da, rtw_get_oper_ch23a(padapter),
+				  ret == _SUCCESS ? ", acked" : "", i, try_cnt,
 				  jiffies_to_msecs(jiffies - start));
 		else
 			DBG_8723A("%s(%s):, ch:%u%s, %d/%d in %u ms\n",
 				  __func__, padapter->pnetdev->name,
 				  rtw_get_oper_ch23a(padapter),
-				  ret == _SUCCESS?", acked":"", i, try_cnt,
+				  ret == _SUCCESS ? ", acked" : "", i, try_cnt,
 				  jiffies_to_msecs(jiffies - start));
 	}
 exit:
@@ -3719,8 +3713,8 @@ void issue_action_spct_ch_switch23a(struct rtw_adapter *padapter,
 	struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
 	struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
 
-	DBG_8723A("%s(%s): ra ="MAC_FMT", ch:%u, offset:%u\n", __func__,
-		  padapter->pnetdev->name, MAC_ARG(ra), new_ch, ch_offset);
+	DBG_8723A("%s(%s): ra=%pM, ch:%u, offset:%u\n",
+		  __func__, padapter->pnetdev->name, ra, new_ch, ch_offset);
 
 	pmgntframe = alloc_mgtxmitframe23a(pxmitpriv);
 	if (!pmgntframe)
@@ -3767,7 +3761,6 @@ void issue_action_BA23a(struct rtw_adapter *padapter,
 {
 	u16 start_seq;
 	u16 BA_para_set;
-	u16 BA_timeout_value;
 	u16 BA_starting_seqctrl;
 	u16 BA_para;
 	int max_rx_ampdu_factor;
@@ -3842,16 +3835,14 @@ void issue_action_BA23a(struct rtw_adapter *padapter,
 				IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK;
 		} else {
 			/* immediate ack & 64 buffer size */
-			BA_para_set = (0x1002 | ((status & 0xf) << 2));
+			BA_para_set = 0x1002 | ((status & 0xf) << 2);
 		}
 
 		put_unaligned_le16(BA_para_set,
 				   &mgmt->u.action.u.addba_req.capab);
 
-		BA_timeout_value = 5000;/*  5ms */
-		BA_timeout_value = cpu_to_le16(BA_timeout_value);
-		put_unaligned_le16(BA_timeout_value,
-				   &mgmt->u.action.u.addba_req.timeout);
+		/*  5ms */
+		put_unaligned_le16(5000, &mgmt->u.action.u.addba_req.timeout);
 
 		psta = rtw_get_stainfo23a(pstapriv, raddr);
 		if (psta) {
@@ -4347,7 +4338,8 @@ static void start_create_ibss(struct rtw_adapter *padapter)
 
 		/* issue beacon */
 		if (send_beacon23a(padapter) == _FAIL) {
-			RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("issuing beacon frame fail....\n"));
+			RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
+				 "issuing beacon frame fail....\n");
 
 			report_join_res23a(padapter, -1);
 			pmlmeinfo->state = MSR_NOLINK;
@@ -4531,7 +4523,7 @@ static void process_80211d(struct rtw_adapter *padapter,
 
 		p += 3;
 		RT_TRACE(_module_rtl871x_mlme_c_, _drv_notice_,
-			 ("%s: 802.11d country =%s\n", __func__, country));
+			 "%s: 802.11d country =%s\n", __func__, country);
 
 		i = 0;
 		while ((ie - p) >= 3) {
@@ -4708,9 +4700,8 @@ static void process_80211d(struct rtw_adapter *padapter,
 
 				chplan_new[i].ScanType = SCAN_ACTIVE;
 				RT_TRACE(_module_rtl871x_mlme_c_, _drv_notice_,
-					 ("%s: change channel %d scan type "
-					  "from passive to active\n",
-					  __func__, channel));
+					 "%s: change channel %d scan type from passive to active\n",
+					 __func__, channel);
 			}
 			break;
 		}
@@ -4745,7 +4736,7 @@ void report_survey_event23a(struct rtw_adapter *padapter,
 	if (!pcmd_obj)
 		return;
 
-	cmdsz = (sizeof(struct survey_event) + sizeof(struct C2HEvent_Header));
+	cmdsz = sizeof(struct survey_event) + sizeof(struct C2HEvent_Header);
 	pevtcmd = kzalloc(cmdsz, GFP_ATOMIC);
 	if (!pevtcmd) {
 		kfree(pcmd_obj);
@@ -4796,7 +4787,7 @@ void report_surveydone_event23a(struct rtw_adapter *padapter)
 	if (!pcmd_obj)
 		return;
 
-	cmdsz = (sizeof(struct surveydone_event) + sizeof(struct C2HEvent_Header));
+	cmdsz = sizeof(struct surveydone_event) + sizeof(struct C2HEvent_Header);
 	pevtcmd = kzalloc(cmdsz, GFP_ATOMIC);
 	if (!pevtcmd) {
 		kfree(pcmd_obj);
@@ -4840,7 +4831,7 @@ void report_join_res23a(struct rtw_adapter *padapter, int res)
 	if (!pcmd_obj)
 		return;
 
-	cmdsz = (sizeof(struct joinbss_event) + sizeof(struct C2HEvent_Header));
+	cmdsz = sizeof(struct joinbss_event) + sizeof(struct C2HEvent_Header);
 	pevtcmd = kzalloc(cmdsz, GFP_ATOMIC);
 	if (!pevtcmd) {
 		kfree(pcmd_obj);
@@ -4890,7 +4881,7 @@ void report_del_sta_event23a(struct rtw_adapter *padapter,
 	if (!pcmd_obj)
 		return;
 
-	cmdsz = (sizeof(struct stadel_event) + sizeof(struct C2HEvent_Header));
+	cmdsz = sizeof(struct stadel_event) + sizeof(struct C2HEvent_Header);
 	pevtcmd = kzalloc(cmdsz, GFP_ATOMIC);
 	if (!pevtcmd) {
 		kfree(pcmd_obj);
@@ -4918,7 +4909,7 @@ void report_del_sta_event23a(struct rtw_adapter *padapter,
 	if (psta)
 		mac_id = (int)psta->mac_id;
 	else
-		mac_id = (-1);
+		mac_id = -1;
 
 	pdel_sta_evt->mac_id = mac_id;
 
@@ -4944,7 +4935,7 @@ void report_add_sta_event23a(struct rtw_adapter *padapter,
 	if (!pcmd_obj)
 		return;
 
-	cmdsz = (sizeof(struct stassoc_event) + sizeof(struct C2HEvent_Header));
+	cmdsz = sizeof(struct stassoc_event) + sizeof(struct C2HEvent_Header);
 	pevtcmd = kzalloc(cmdsz, GFP_ATOMIC);
 	if (!pevtcmd) {
 		kfree(pcmd_obj);
@@ -5951,7 +5942,7 @@ int set_stakey_hdl23a(struct rtw_adapter *padapter, const u8 *pbuf)
 
 			/* 0~3 for default key, cmd_id = macid + 3,
 			   macid = aid+1; */
-			cam_id = (psta->mac_id + 3);
+			cam_id = psta->mac_id + 3;
 
 			DBG_8723A("Write CAM, mac_addr =%x:%x:%x:%x:%x:%x, "
 				  "cam_entry =%d\n", pparm->addr[0],
@@ -6066,7 +6057,7 @@ int mlme_evt_hdl23a(struct rtw_adapter *padapter, const u8 *pbuf)
 	/*  checking if event code is valid */
 	if (evt_code >= MAX_C2HEVT) {
 		RT_TRACE(_module_rtl871x_cmd_c_, _drv_err_,
-			 ("\nEvent Code(%d) mismatch!\n", evt_code));
+			 "Event Code(%d) mismatch!\n", evt_code);
 		goto _abort_event_;
 	}
 
@@ -6074,8 +6065,8 @@ int mlme_evt_hdl23a(struct rtw_adapter *padapter, const u8 *pbuf)
 	if (wlanevents[evt_code].parmsize != 0 &&
 	    wlanevents[evt_code].parmsize != evt_sz) {
 		RT_TRACE(_module_rtl871x_cmd_c_, _drv_err_,
-			 ("\nEvent(%d) Parm Size mismatch (%d vs %d)!\n",
-			  evt_code, wlanevents[evt_code].parmsize, evt_sz));
+			 "Event(%d) Parm Size mismatch (%d vs %d)!\n",
+			 evt_code, wlanevents[evt_code].parmsize, evt_sz);
 		goto _abort_event_;
 	}
 
diff --git a/drivers/staging/rtl8723au/core/rtw_pwrctrl.c b/drivers/staging/rtl8723au/core/rtw_pwrctrl.c
index e2d51af..7488a10 100644
--- a/drivers/staging/rtl8723au/core/rtw_pwrctrl.c
+++ b/drivers/staging/rtl8723au/core/rtw_pwrctrl.c
@@ -202,17 +202,17 @@ void rtw_set_rpwm23a(struct rtw_adapter *padapter, u8 pslv)
 
 	if (pwrpriv->rpwm == pslv) {
 		RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_err_,
-			("%s: Already set rpwm[0x%02X], new = 0x%02X!\n",
-			 __func__, pwrpriv->rpwm, pslv));
+			 "%s: Already set rpwm[0x%02X], new = 0x%02X!\n",
+			 __func__, pwrpriv->rpwm, pslv);
 		return;
 	}
 
 	if (padapter->bSurpriseRemoved == true ||
 	    padapter->hw_init_completed == false) {
 		RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_err_,
-			 ("%s: SurpriseRemoved(%d) hw_init_completed(%d)\n",
-			  __func__, padapter->bSurpriseRemoved,
-			  padapter->hw_init_completed));
+			 "%s: SurpriseRemoved(%d) hw_init_completed(%d)\n",
+			 __func__, padapter->bSurpriseRemoved,
+			 padapter->hw_init_completed);
 
 		pwrpriv->cpwm = PS_STATE_S4;
 
@@ -221,22 +221,21 @@ void rtw_set_rpwm23a(struct rtw_adapter *padapter, u8 pslv)
 
 	if (padapter->bDriverStopped == true) {
 		RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_err_,
-			 ("%s: change power state(0x%02X) when DriverStopped\n",
-			  __func__, pslv));
+			 "%s: change power state(0x%02X) when DriverStopped\n",
+			 __func__, pslv);
 
 		if (pslv < PS_STATE_S2) {
 			RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_err_,
-				 ("%s: Reject to enter PS_STATE(0x%02X) lower "
-				  "than S2 when DriverStopped!!\n",
-				  __func__, pslv));
+				 "%s: Reject to enter PS_STATE(0x%02X) lower than S2 when DriverStopped!!\n",
+				 __func__, pslv);
 			return;
 		}
 	}
 
 	rpwm = pslv | pwrpriv->tog;
 	RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_notice_,
-		 ("rtw_set_rpwm23a: rpwm = 0x%02x cpwm = 0x%02x\n",
-		  rpwm, pwrpriv->cpwm));
+		 "rtw_set_rpwm23a: rpwm = 0x%02x cpwm = 0x%02x\n",
+		 rpwm, pwrpriv->cpwm);
 
 	pwrpriv->rpwm = pslv;
 
@@ -282,12 +281,12 @@ void rtw_set_ps_mode23a(struct rtw_adapter *padapter, u8 ps_mode,
 	struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
 
 	RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_notice_,
-			 ("%s: PowerMode =%d Smart_PS =%d\n",
-			  __func__, ps_mode, smart_ps));
+		 "%s: PowerMode =%d Smart_PS =%d\n",
+		 __func__, ps_mode, smart_ps);
 
 	if (ps_mode > PM_Card_Disable) {
 		RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_err_,
-			 ("ps_mode:%d error\n", ps_mode));
+			 "ps_mode:%d error\n", ps_mode);
 		return;
 	}
 
diff --git a/drivers/staging/rtl8723au/core/rtw_recv.c b/drivers/staging/rtl8723au/core/rtw_recv.c
index 559ddde..274a4b6 100644
--- a/drivers/staging/rtl8723au/core/rtw_recv.c
+++ b/drivers/staging/rtl8723au/core/rtw_recv.c
@@ -299,12 +299,9 @@ int recvframe_chkmic(struct rtw_adapter *adapter,
 
 	if (prxattrib->encrypt == WLAN_CIPHER_SUITE_TKIP) {
 		RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
-			 ("\n recvframe_chkmic:prxattrib->encrypt == WLAN_CIPHER_SUITE_TKIP\n"));
+			 "recvframe_chkmic:prxattrib->encrypt == WLAN_CIPHER_SUITE_TKIP\n");
 		RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
-			 ("\n recvframe_chkmic:da = 0x%02x:0x%02x:0x%02x:0x%02x:"
-			  "0x%02x:0x%02x\n", prxattrib->ra[0],
-			  prxattrib->ra[1], prxattrib->ra[2], prxattrib->ra[3],
-			  prxattrib->ra[4], prxattrib->ra[5]));
+			 "recvframe_chkmic:da = %pM\n", prxattrib->ra);
 
 		/* calculate mic code */
 		if (stainfo != NULL) {
@@ -312,14 +309,13 @@ int recvframe_chkmic(struct rtw_adapter *adapter,
 				mickey = &psecuritypriv->dot118021XGrprxmickey[prxattrib->key_index].skey[0];
 
 				RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
-					 ("\n recvframe_chkmic: bcmc key\n"));
+					 "recvframe_chkmic: bcmc key\n");
 
 				if (!psecuritypriv->binstallGrpkey) {
 					res = _FAIL;
 					RT_TRACE(_module_rtl871x_recv_c_,
 						 _drv_err_,
-						 ("\n recvframe_chkmic:didn't "
-						  "install group key!!!!!!\n"));
+						 "recvframe_chkmic:didn't install group key!\n");
 					DBG_8723A("\n recvframe_chkmic:didn't "
 						  "install group key!!!!!!\n");
 					goto exit;
@@ -327,8 +323,7 @@ int recvframe_chkmic(struct rtw_adapter *adapter,
 			} else {
 				mickey = &stainfo->dot11tkiprxmickey.skey[0];
 				RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
-					 ("\n recvframe_chkmic: unicast "
-					  "key\n"));
+					 "recvframe_chkmic: unicast key\n");
 			}
 
 			/* icv_len included the mic code */
@@ -339,9 +334,8 @@ int recvframe_chkmic(struct rtw_adapter *adapter,
 				prxattrib->iv_len;
 
 			RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
-				 ("\n prxattrib->iv_len =%d prxattrib->icv_len ="
-				  "%d\n", prxattrib->iv_len,
-				  prxattrib->icv_len));
+				 "prxattrib->iv_len =%d prxattrib->icv_len =%d\n",
+				 prxattrib->iv_len, prxattrib->icv_len);
 
 			/* care the length of the data */
 			rtw_seccalctkipmic23a(mickey, pframe, payload,
@@ -356,10 +350,9 @@ int recvframe_chkmic(struct rtw_adapter *adapter,
 				if (miccode[i] != *(pframemic + i)) {
 					RT_TRACE(_module_rtl871x_recv_c_,
 						 _drv_err_,
-						 ("recvframe_chkmic:miccode"
-						  "[%d](%02x) != *(pframemic+"
-						  "%d)(%02x) ", i, miccode[i],
-						  i, *(pframemic + i)));
+						 "recvframe_chkmic:miccode[%d](%02x) != *(pframemic+%d)(%02x)\n",
+						 i, miccode[i],
+						 i, *(pframemic + i));
 					bmic_err = true;
 				}
 			}
@@ -368,51 +361,44 @@ int recvframe_chkmic(struct rtw_adapter *adapter,
 				int i;
 
 				RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
-					 ("\n *(pframemic-8)-*(pframemic-1) ="
-					  "0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:"
-					  "0x%02x:0x%02x:0x%02x\n",
-					  *(pframemic - 8), *(pframemic - 7),
-					  *(pframemic - 6), *(pframemic - 5),
-					  *(pframemic - 4), *(pframemic - 3),
-					  *(pframemic - 2), *(pframemic - 1)));
+					 "*(pframemic-8)-*(pframemic-1) =0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:0x%02x\n",
+					 *(pframemic - 8), *(pframemic - 7),
+					 *(pframemic - 6), *(pframemic - 5),
+					 *(pframemic - 4), *(pframemic - 3),
+					 *(pframemic - 2), *(pframemic - 1));
 				RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
-					 ("\n *(pframemic-16)-*(pframemic-9) ="
-					  "0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:"
-					  "0x%02x:0x%02x:0x%02x\n",
-					  *(pframemic - 16), *(pframemic - 15),
-					  *(pframemic - 14), *(pframemic - 13),
-					  *(pframemic - 12), *(pframemic - 11),
-					  *(pframemic - 10), *(pframemic - 9)));
+					 "*(pframemic-16)-*(pframemic-9) =0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:0x%02x\n",
+					 *(pframemic - 16), *(pframemic - 15),
+					 *(pframemic - 14), *(pframemic - 13),
+					 *(pframemic - 12), *(pframemic - 11),
+					 *(pframemic - 10), *(pframemic - 9));
 
 				RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
-					 ("\n ====== demp packet (len =%d) ======"
-					  "\n", precvframe->pkt->len));
+					 "====== demp packet (len =%d) ======\n",
+					 precvframe->pkt->len);
 				for (i = 0; i < precvframe->pkt->len; i = i + 8) {
 					RT_TRACE(_module_rtl871x_recv_c_,
-						 _drv_err_, ("0x%02x:0x%02x:0x"
-							    "%02x:0x%02x:0x%0"
-							    "2x:0x%02x:0x%02x"
-							    ":0x%02x",
-							    *(precvframe->pkt->data+i),*(precvframe->pkt->data+i+1),
-							    *(precvframe->pkt->data+i+2),*(precvframe->pkt->data+i+3),
-							    *(precvframe->pkt->data+i+4),*(precvframe->pkt->data+i+5),
-							    *(precvframe->pkt->data+i+6),*(precvframe->pkt->data+i+7)));
+						 _drv_err_,
+						 "0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:0x%02x\n",
+						 *(precvframe->pkt->data+i),
+						 *(precvframe->pkt->data+i+1),
+						 *(precvframe->pkt->data+i+2),
+						 *(precvframe->pkt->data+i+3),
+						 *(precvframe->pkt->data+i+4),
+						 *(precvframe->pkt->data+i+5),
+						 *(precvframe->pkt->data+i+6),
+						 *(precvframe->pkt->data+i+7));
 				}
 				RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
-					 ("\n ====== demp packet end [len =%d]"
-					  "======\n", precvframe->pkt->len));
+					 "====== demp packet end [len =%d]======\n",
+					 precvframe->pkt->len);
 				RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
-					 ("\n hrdlen =%d,\n",
-					  prxattrib->hdrlen));
+					 "hrdlen =%d\n", prxattrib->hdrlen);
 
 				RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
-					 ("ra = 0x%.2x 0x%.2x 0x%.2x 0x%.2x 0x%."
-					  "2x 0x%.2x psecuritypriv->"
-					  "binstallGrpkey =%d ",
-					  prxattrib->ra[0], prxattrib->ra[1],
-					  prxattrib->ra[2], prxattrib->ra[3],
-					  prxattrib->ra[4], prxattrib->ra[5],
-					  psecuritypriv->binstallGrpkey));
+					 "ra = %pM psecuritypriv->binstallGrpkey =%d\n",
+					 prxattrib->ra,
+					 psecuritypriv->binstallGrpkey);
 
 				/*  double check key_index for some timing
 				    issue, cannot compare with
@@ -426,16 +412,17 @@ int recvframe_chkmic(struct rtw_adapter *adapter,
 				if ((prxattrib->bdecrypted == true) &&
 				    (brpt_micerror == true)) {
 					rtw_handle_tkip_mic_err23a(adapter, (u8)is_multicast_ether_addr(prxattrib->ra));
-					RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, (" mic error :prxattrib->bdecrypted =%d ", prxattrib->bdecrypted));
+					RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
+						 "mic error :prxattrib->bdecrypted =%d\n",
+						 prxattrib->bdecrypted);
 					DBG_8723A(" mic error :prxattrib->"
 						  "bdecrypted =%d\n",
 						  prxattrib->bdecrypted);
 				} else {
 					RT_TRACE(_module_rtl871x_recv_c_,
 						 _drv_err_,
-						 (" mic error :prxattrib->"
-						  "bdecrypted =%d ",
-						  prxattrib->bdecrypted));
+						 "mic error :prxattrib->bdecrypted =%d\n",
+						 prxattrib->bdecrypted);
 					DBG_8723A(" mic error :prxattrib->"
 						  "bdecrypted =%d\n",
 						  prxattrib->bdecrypted);
@@ -449,14 +436,12 @@ int recvframe_chkmic(struct rtw_adapter *adapter,
 					psecuritypriv->bcheck_grpkey = 1;
 					RT_TRACE(_module_rtl871x_recv_c_,
 						 _drv_err_,
-						 ("psecuritypriv->bcheck_grp"
-						  "key = true"));
+						 "psecuritypriv->bcheck_grpkey = true\n");
 				}
 			}
 		} else {
 			RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
-				 ("recvframe_chkmic: rtw_get_stainfo23a =="
-				  "NULL!!!\n"));
+				 "recvframe_chkmic: rtw_get_stainfo23a ==NULL!!!\n");
 		}
 
 		skb_trim(precvframe->pkt, precvframe->pkt->len - 8);
@@ -481,8 +466,8 @@ struct recv_frame *decryptor(struct rtw_adapter *padapter,
 	int res = _SUCCESS;
 
 	RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
-		 ("prxstat->decrypted =%x prxattrib->encrypt = 0x%03x\n",
-		  prxattrib->bdecrypted, prxattrib->encrypt));
+		 "prxstat->decrypted =%x prxattrib->encrypt = 0x%03x\n",
+		 prxattrib->bdecrypted, prxattrib->encrypt);
 
 	if (prxattrib->encrypt > 0) {
 		u8 *iv = precv_frame->pkt->data + prxattrib->hdrlen;
@@ -565,8 +550,8 @@ static struct recv_frame *portctrl(struct rtw_adapter *adapter,
 	psta = rtw_get_stainfo23a(pstapriv, psta_addr);
 
 	RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
-		 ("########portctrl:adapter->securitypriv.dot11AuthAlgrthm ="
-		  "%d\n", adapter->securitypriv.dot11AuthAlgrthm));
+		 "########portctrl:adapter->securitypriv.dot11AuthAlgrthm =%d\n",
+		 adapter->securitypriv.dot11AuthAlgrthm);
 
 	prtnframe = precv_frame;
 
@@ -580,8 +565,7 @@ static struct recv_frame *portctrl(struct rtw_adapter *adapter,
 			/* blocked */
 			/* only accept EAPOL frame */
 			RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
-				 ("########portctrl:psta->ieee8021x_blocked =="
-				  "1\n"));
+				 "########portctrl:psta->ieee8021x_blocked ==1\n");
 
 			if (ether_type != eapol_type) {
 				/* free this frame */
@@ -608,8 +592,8 @@ int recv_decache(struct recv_frame *precv_frame, u8 bretry,
 
 	if (tid > 15) {
 		RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_,
-			 ("recv_decache, (tid>15)! seq_ctrl = 0x%x, tid = 0x%x\n",
-			  seq_ctrl, tid));
+			 "recv_decache, (tid>15)! seq_ctrl = 0x%x, tid = 0x%x\n",
+			 seq_ctrl, tid);
 
 		return _FAIL;
 	}
@@ -617,9 +601,8 @@ int recv_decache(struct recv_frame *precv_frame, u8 bretry,
 	if (1) { /* if (bretry) */
 		if (seq_ctrl == prxcache->tid_rxseq[tid]) {
 			RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_,
-				 ("recv_decache, seq_ctrl = 0x%x, tid = 0x%x, "
-				  "tid_rxseq = 0x%x\n",
-				  seq_ctrl, tid, prxcache->tid_rxseq[tid]));
+				 "recv_decache, seq_ctrl = 0x%x, tid = 0x%x, tid_rxseq = 0x%x\n",
+				 seq_ctrl, tid, prxcache->tid_rxseq[tid]);
 
 			return _FAIL;
 		}
@@ -777,7 +760,7 @@ static int sta2sta_data_frame(struct rtw_adapter *adapter,
 		/*  filter packets that SA is myself or multicast or broadcast */
 		if (ether_addr_equal(myhwaddr, pattrib->src)) {
 			RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
-				 (" SA == myself\n"));
+				 "SA == myself\n");
 			ret = _FAIL;
 			goto exit;
 		}
@@ -800,8 +783,7 @@ static int sta2sta_data_frame(struct rtw_adapter *adapter,
 		    and DA is my mac-address */
 		if (!ether_addr_equal(pattrib->bssid, pattrib->src)) {
 			RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
-				 ("bssid != TA under STATION_MODE; drop "
-				  "pkt\n"));
+				 "bssid != TA under STATION_MODE; drop pkt\n");
 			ret = _FAIL;
 			goto exit;
 		}
@@ -843,7 +825,8 @@ static int sta2sta_data_frame(struct rtw_adapter *adapter,
 		*psta = rtw_get_stainfo23a(pstapriv, sta_addr); /*  get ap_info */
 
 	if (*psta == NULL) {
-		RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("can't get psta under sta2sta_data_frame ; drop pkt\n"));
+		RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
+			 "can't get psta under sta2sta_data_frame ; drop pkt\n");
 		ret = _FAIL;
 		goto exit;
 	}
@@ -879,7 +862,7 @@ int ap2sta_data_frame(struct rtw_adapter *adapter,
 		/* filter packets that SA is myself or multicast or broadcast */
 		if (ether_addr_equal(myhwaddr, pattrib->src)) {
 			RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
-				 (" SA == myself\n"));
+				 "SA == myself\n");
 			ret = _FAIL;
 			goto exit;
 		}
@@ -887,8 +870,8 @@ int ap2sta_data_frame(struct rtw_adapter *adapter,
 		/*  da should be for me */
 		if (!ether_addr_equal(myhwaddr, pattrib->dst) && !bmcast) {
 			RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
-				(" ap2sta_data_frame:  compare DA fail; DA ="
-				 MAC_FMT"\n", MAC_ARG(pattrib->dst)));
+				 "ap2sta_data_frame:  compare DA failed; DA=%pM\n",
+				 pattrib->dst);
 			ret = _FAIL;
 			goto exit;
 		}
@@ -898,15 +881,14 @@ int ap2sta_data_frame(struct rtw_adapter *adapter,
 		    ether_addr_equal(mybssid, "\x0\x0\x0\x0\x0\x0") ||
 		    !ether_addr_equal(pattrib->bssid, mybssid)) {
 			RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
-				(" ap2sta_data_frame:  compare BSSID fail ; "
-				 "BSSID ="MAC_FMT"\n", MAC_ARG(pattrib->bssid)));
+				 "ap2sta_data_frame:  compare BSSID failed; BSSID=%pM\n",
+				 pattrib->bssid);
 			RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
-				 ("mybssid ="MAC_FMT"\n", MAC_ARG(mybssid)));
+				 "mybssid=%pM\n", mybssid);
 
 			if (!bmcast) {
-				DBG_8723A("issue_deauth23a to the nonassociated "
-					  "ap =" MAC_FMT " for the reason(7)\n",
-					  MAC_ARG(pattrib->bssid));
+				DBG_8723A("issue_deauth23a to the nonassociated ap=%pM for the reason(7)\n",
+					  pattrib->bssid);
 				issue_deauth23a(adapter, pattrib->bssid,
 					     WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA);
 			}
@@ -923,8 +905,7 @@ int ap2sta_data_frame(struct rtw_adapter *adapter,
 
 		if (*psta == NULL) {
 			RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
-				 ("ap2sta: can't get psta under STATION_MODE ;"
-				  " drop pkt\n"));
+				 "ap2sta: can't get psta under STATION_MODE; drop pkt\n");
 			ret = _FAIL;
 			goto exit;
 		}
@@ -952,7 +933,7 @@ int ap2sta_data_frame(struct rtw_adapter *adapter,
 		*psta = rtw_get_stainfo23a(pstapriv, pattrib->bssid);
 		if (*psta == NULL) {
 			RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
-				 ("can't get psta under MP_MODE ; drop pkt\n"));
+				 "can't get psta under MP_MODE ; drop pkt\n");
 			ret = _FAIL;
 			goto exit;
 		}
@@ -964,9 +945,8 @@ int ap2sta_data_frame(struct rtw_adapter *adapter,
 		if (ether_addr_equal(myhwaddr, pattrib->dst) && !bmcast) {
 			*psta = rtw_get_stainfo23a(pstapriv, pattrib->bssid);
 			if (*psta == NULL) {
-				DBG_8723A("issue_deauth23a to the ap =" MAC_FMT
-					  " for the reason(7)\n",
-					  MAC_ARG(pattrib->bssid));
+				DBG_8723A("issue_deauth23a to the ap=%pM for the reason(7)\n",
+					  pattrib->bssid);
 
 				issue_deauth23a(adapter, pattrib->bssid,
 					     WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA);
@@ -1010,10 +990,9 @@ int sta2ap_data_frame(struct rtw_adapter *adapter,
 		*psta = rtw_get_stainfo23a(pstapriv, pattrib->src);
 		if (*psta == NULL) {
 			RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
-				 ("can't get psta under AP_MODE; drop pkt\n"));
-			DBG_8723A("issue_deauth23a to sta =" MAC_FMT
-				  " for the reason(7)\n",
-				  MAC_ARG(pattrib->src));
+				 "can't get psta under AP_MODE; drop pkt\n");
+			DBG_8723A("issue_deauth23a to sta=%pM for the reason(7)\n",
+				  pattrib->src);
 
 			issue_deauth23a(adapter, pattrib->src,
 				     WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA);
@@ -1043,8 +1022,8 @@ int sta2ap_data_frame(struct rtw_adapter *adapter,
 			ret = RTW_RX_HANDLED;
 			goto exit;
 		}
-		DBG_8723A("issue_deauth23a to sta =" MAC_FMT " for the reason(7)\n",
-			  MAC_ARG(pattrib->src));
+		DBG_8723A("issue_deauth23a to sta=%pM for the reason(7)\n",
+			  pattrib->src);
 		issue_deauth23a(adapter, pattrib->src,
 			     WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA);
 		ret = RTW_RX_HANDLED;
@@ -1214,12 +1193,12 @@ static int validate_recv_mgnt_frame(struct rtw_adapter *padapter,
 	/* struct mlme_priv *pmlmepriv = &adapter->mlmepriv; */
 
 	RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
-		 ("+validate_recv_mgnt_frame\n"));
+		 "+validate_recv_mgnt_frame\n");
 
 	precv_frame = recvframe_chk_defrag23a(padapter, precv_frame);
 	if (precv_frame == NULL) {
 		RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_,
-			 ("%s: fragment packet\n", __func__));
+			 "%s: fragment packet\n", __func__);
 		return _SUCCESS;
 	}
 
@@ -1305,7 +1284,7 @@ static int validate_recv_data_frame(struct rtw_adapter *adapter,
 		ether_addr_copy(pattrib->ra, hdr->addr1);
 		ether_addr_copy(pattrib->ta, hdr->addr2);
 		ret = _FAIL;
-		RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, (" case 3\n"));
+		RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, "case 3\n");
 		break;
 	}
 
@@ -1314,7 +1293,7 @@ static int validate_recv_data_frame(struct rtw_adapter *adapter,
 
 	if (!psta) {
 		RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
-			 (" after to_fr_ds_chk; psta == NULL\n"));
+			 "after to_fr_ds_chk; psta == NULL\n");
 		ret = _FAIL;
 		goto exit;
 	}
@@ -1357,26 +1336,25 @@ static int validate_recv_data_frame(struct rtw_adapter *adapter,
 	if (recv_decache(precv_frame, bretry, &psta->sta_recvpriv.rxcache) ==
 	    _FAIL) {
 		RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
-			 ("decache : drop pkt\n"));
+			 "decache : drop pkt\n");
 		ret = _FAIL;
 		goto exit;
 	}
 
 	if (pattrib->privacy) {
 		RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
-			 ("validate_recv_data_frame:pattrib->privacy =%x\n",
-			 pattrib->privacy));
+			 "validate_recv_data_frame:pattrib->privacy =%x\n",
+			 pattrib->privacy);
 		RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
-			 ("\n ^^^^^^^^^^^is_multicast_ether_addr"
-			  "(pattrib->ra(0x%02x)) =%d^^^^^^^^^^^^^^^6\n",
-			  pattrib->ra[0],
-			  is_multicast_ether_addr(pattrib->ra)));
+			 "^^^^^^^^^^^is_multicast_ether_addr(pattrib->ra(0x%02x)) =%d^^^^^^^^^^^^^^^6\n",
+			 pattrib->ra[0],
+			 is_multicast_ether_addr(pattrib->ra));
 
 		GET_ENCRY_ALGO(psecuritypriv, psta, pattrib->encrypt,
 			       is_multicast_ether_addr(pattrib->ra));
 
 		RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
-			 ("\n pattrib->encrypt =%d\n", pattrib->encrypt));
+			 "pattrib->encrypt =%d\n", pattrib->encrypt);
 
 		switch (pattrib->encrypt) {
 		case WLAN_CIPHER_SUITE_WEP40:
@@ -1457,7 +1435,7 @@ static int validate_recv_frame(struct rtw_adapter *adapter,
 	/* add version chk */
 	if (ver != 0) {
 		RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
-			 ("validate_recv_data_frame fail! (ver!= 0)\n"));
+			 "validate_recv_data_frame fail! (ver!= 0)\n");
 		retval = _FAIL;
 		goto exit;
 	}
@@ -1482,7 +1460,7 @@ static int validate_recv_frame(struct rtw_adapter *adapter,
 		retval = validate_recv_mgnt_frame(adapter, precv_frame);
 		if (retval == _FAIL) {
 			RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
-				 ("validate_recv_mgnt_frame fail\n"));
+				 "validate_recv_mgnt_frame fail\n");
 		}
 		retval = _FAIL; /*  only data frame return _SUCCESS */
 		break;
@@ -1490,7 +1468,7 @@ static int validate_recv_frame(struct rtw_adapter *adapter,
 		retval = validate_recv_ctrl_frame(adapter, precv_frame);
 		if (retval == _FAIL) {
 			RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
-				 ("validate_recv_ctrl_frame fail\n"));
+				 "validate_recv_ctrl_frame fail\n");
 		}
 		retval = _FAIL; /*  only data frame return _SUCCESS */
 		break;
@@ -1499,13 +1477,13 @@ static int validate_recv_frame(struct rtw_adapter *adapter,
 		retval = validate_recv_data_frame(adapter, precv_frame);
 		if (retval == _FAIL) {
 			struct recv_priv *precvpriv = &adapter->recvpriv;
-			/* RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("validate_recv_data_frame fail\n")); */
+
 			precvpriv->rx_drop++;
 		}
 		break;
 	default:
 		RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
-			 ("validate_recv_data_frame fail! type = 0x%x\n", type));
+			 "validate_recv_data_frame fail! type = 0x%x\n", type);
 		retval = _FAIL;
 		break;
 	}
@@ -1552,8 +1530,8 @@ static int wlanhdr_to_ethhdr (struct recv_frame *precvframe)
 	len = skb->len - hdrlen;
 
 	RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
-		 ("\n === pattrib->hdrlen: %x,  pattrib->iv_len:%x ===\n\n",
-		  pattrib->hdrlen,  pattrib->iv_len));
+		 "=== pattrib->hdrlen: %x,  pattrib->iv_len:%x ===\n",
+		 pattrib->hdrlen,  pattrib->iv_len);
 
 	pattrib->eth_type = eth_type;
 	if (check_fwstate(pmlmepriv, WIFI_MP_STATE)) {
@@ -1665,7 +1643,7 @@ struct recv_frame *recvframe_defrag(struct rtw_adapter *adapter,
 	rtw_free_recvframe23a_queue(defrag_q);
 
 	RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
-		 ("Performance defrag!!!!!\n"));
+		 "Performance defrag!!!!!\n");
 
 
 
@@ -1736,8 +1714,8 @@ struct recv_frame *recvframe_chk_defrag23a(struct rtw_adapter *padapter,
 			/* spin_unlock(&pdefrag_q->lock); */
 
 			RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
-				 ("Enqueuq: ismfrag = %d, fragnum = %d\n",
-				  ismfrag, fragnum));
+				 "Enqueuq: ismfrag = %d, fragnum = %d\n",
+				 ismfrag, fragnum);
 
 			prtnframe = NULL;
 
@@ -1747,8 +1725,8 @@ struct recv_frame *recvframe_chk_defrag23a(struct rtw_adapter *padapter,
 			rtw_free_recvframe23a(precv_frame);
 			prtnframe = NULL;
 			RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
-				 ("Free because pdefrag_q == NULL: ismfrag = "
-				  "%d, fragnum = %d\n", ismfrag, fragnum));
+				 "Free because pdefrag_q == NULL: ismfrag = %d, fragnum = %d\n",
+				 ismfrag, fragnum);
 		}
 	}
 
@@ -1763,8 +1741,8 @@ struct recv_frame *recvframe_chk_defrag23a(struct rtw_adapter *padapter,
 
 			/* call recvframe_defrag to defrag */
 			RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
-				 ("defrag: ismfrag = %d, fragnum = %d\n",
-				  ismfrag, fragnum));
+				 "defrag: ismfrag = %d, fragnum = %d\n",
+				 ismfrag, fragnum);
 			precv_frame = recvframe_defrag(padapter, pdefrag_q);
 			prtnframe = precv_frame;
 		} else {
@@ -1773,8 +1751,8 @@ struct recv_frame *recvframe_chk_defrag23a(struct rtw_adapter *padapter,
 			rtw_free_recvframe23a(precv_frame);
 			prtnframe = NULL;
 			RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
-				 ("Free because pdefrag_q == NULL: ismfrag = "
-				  "%d, fragnum = %d\n", ismfrag, fragnum));
+				 "Free because pdefrag_q == NULL: ismfrag = %d, fragnum = %d\n",
+				 ismfrag, fragnum);
 		}
 
 	}
@@ -1783,8 +1761,7 @@ struct recv_frame *recvframe_chk_defrag23a(struct rtw_adapter *padapter,
 		/* after defrag we must check tkip mic code */
 		if (recvframe_chkmic(padapter,  prtnframe) == _FAIL) {
 			RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
-				 ("recvframe_chkmic(padapter,  prtnframe) =="
-				  "_FAIL\n"));
+				 "recvframe_chkmic(padapter,  prtnframe) ==_FAIL\n");
 			rtw_free_recvframe23a(prtnframe);
 			prtnframe = NULL;
 		}
@@ -1883,7 +1860,6 @@ static int enqueue_reorder_recvframe23a(struct recv_reorder_ctrl *preorder_ctrl,
 			continue;
 		} else if (SN_EQUAL(pnextattrib->seq_num, pattrib->seq_num)) {
 			/* Duplicate entry is found!! Do not insert current entry. */
-			/* RT_TRACE(COMP_RX_REORDER, DBG_TRACE, ("InsertRxReorderList(): Duplicate packet is dropped!! IndicateSeq: %d, NewSeq: %d\n", pTS->RxIndicateSeq, SeqNum)); */
 
 			/* spin_unlock_irqrestore(&ppending_recvframe_queue->lock); */
 			return false;
@@ -1904,7 +1880,6 @@ static int enqueue_reorder_recvframe23a(struct recv_reorder_ctrl *preorder_ctrl,
 	/* spin_unlock_ex(&ppending_recvframe_queue->lock); */
 	/* spin_unlock_irqrestore(&ppending_recvframe_queue->lock); */
 
-	/* RT_TRACE(COMP_RX_REORDER, DBG_TRACE, ("InsertRxReorderList(): Pkt insert into buffer!! IndicateSeq: %d, NewSeq: %d\n", pTS->RxIndicateSeq, SeqNum)); */
 	return true;
 }
 
@@ -1956,10 +1931,9 @@ int recv_indicatepkts_in_order(struct rtw_adapter *padapter,
 
 		if (!SN_LESS(preorder_ctrl->indicate_seq, pattrib->seq_num)) {
 			RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_,
-				 ("recv_indicatepkts_in_order: indicate =%d "
-				  "seq =%d amsdu =%d\n",
-				  preorder_ctrl->indicate_seq,
-				  pattrib->seq_num, pattrib->amsdu));
+				 "recv_indicatepkts_in_order: indicate =%d seq =%d amsdu =%d\n",
+				 preorder_ctrl->indicate_seq,
+				 pattrib->seq_num, pattrib->amsdu);
 
 			plist = plist->next;
 			list_del_init(&prframe->list);
@@ -2021,8 +1995,7 @@ int recv_indicatepkt_reorder(struct rtw_adapter *padapter,
 			if ((padapter->bDriverStopped == false) &&
 			    (padapter->bSurpriseRemoved == false)) {
 				RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_,
-					 ("@@@@  recv_indicatepkt_reorder -"
-					  "recv_func recv_indicatepkt\n"));
+					 "@@@@  recv_indicatepkt_reorder -recv_func recv_indicatepkt\n");
 
 				rtw_recv_indicatepkt23a(padapter, prframe);
 				return _SUCCESS;
@@ -2055,8 +2028,8 @@ int recv_indicatepkt_reorder(struct rtw_adapter *padapter,
 	spin_lock_bh(&ppending_recvframe_queue->lock);
 
 	RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_,
-		 ("recv_indicatepkt_reorder: indicate =%d seq =%d\n",
-		  preorder_ctrl->indicate_seq, pattrib->seq_num));
+		 "recv_indicatepkt_reorder: indicate =%d seq =%d\n",
+		 preorder_ctrl->indicate_seq, pattrib->seq_num);
 
 	/* s2. check if winstart_b(indicate_seq) needs to been updated */
 	if (!check_indicate_seq(preorder_ctrl, pattrib->seq_num)) {
@@ -2149,7 +2122,7 @@ int process_recv_indicatepkts(struct rtw_adapter *padapter,
 		retval = wlanhdr_to_ethhdr(prframe);
 		if (retval != _SUCCESS) {
 			RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
-				 ("wlanhdr_to_ethhdr: drop pkt\n"));
+				 "wlanhdr_to_ethhdr: drop pkt\n");
 			return retval;
 		}
 
@@ -2157,19 +2130,16 @@ int process_recv_indicatepkts(struct rtw_adapter *padapter,
 		    (padapter->bSurpriseRemoved == false)) {
 			/* indicate this recv_frame */
 			RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_,
-				 ("@@@@ process_recv_indicatepkts- "
-				  "recv_func recv_indicatepkt\n"));
+				 "@@@@ process_recv_indicatepkts- recv_func recv_indicatepkt\n");
 			rtw_recv_indicatepkt23a(padapter, prframe);
 		} else {
 			RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_,
-				 ("@@@@ process_recv_indicatepkts- "
-				  "recv_func free_indicatepkt\n"));
+				 "@@@@ process_recv_indicatepkts- recv_func free_indicatepkt\n");
 
 			RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_,
-				 ("recv_func:bDriverStopped(%d) OR "
-				  "bSurpriseRemoved(%d)",
-				  padapter->bDriverStopped,
-				  padapter->bSurpriseRemoved));
+				 "recv_func:bDriverStopped(%d) OR bSurpriseRemoved(%d)\n",
+				 padapter->bDriverStopped,
+				 padapter->bSurpriseRemoved);
 			retval = _FAIL;
 			return retval;
 		}
@@ -2188,7 +2158,7 @@ static int recv_func_prehandle(struct rtw_adapter *padapter,
 	ret = validate_recv_frame(padapter, rframe);
 	if (ret != _SUCCESS) {
 		RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
-			 ("recv_func: validate_recv_frame fail! drop pkt\n"));
+			 "recv_func: validate_recv_frame fail! drop pkt\n");
 		rtw_free_recvframe23a(rframe);
 		goto exit;
 	}
@@ -2208,7 +2178,7 @@ static int recv_func_posthandle(struct rtw_adapter *padapter,
 	prframe = decryptor(padapter, prframe);
 	if (prframe == NULL) {
 		RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
-			 ("decryptor: drop pkt\n"));
+			 "decryptor: drop pkt\n");
 		ret = _FAIL;
 		goto _recv_data_drop;
 	}
@@ -2216,7 +2186,7 @@ static int recv_func_posthandle(struct rtw_adapter *padapter,
 	prframe = recvframe_chk_defrag23a(padapter, prframe);
 	if (!prframe) {
 		RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
-			 ("recvframe_chk_defrag23a: drop pkt\n"));
+			 "recvframe_chk_defrag23a: drop pkt\n");
 		goto _recv_data_drop;
 	}
 
@@ -2235,7 +2205,7 @@ static int recv_func_posthandle(struct rtw_adapter *padapter,
 	prframe = portctrl(padapter, prframe);
 	if (!prframe) {
 		RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
-			 ("portctrl: drop pkt\n"));
+			 "portctrl: drop pkt\n");
 		ret = _FAIL;
 		goto _recv_data_drop;
 	}
@@ -2245,7 +2215,7 @@ static int recv_func_posthandle(struct rtw_adapter *padapter,
 	ret = process_recv_indicatepkts(padapter, prframe);
 	if (ret != _SUCCESS) {
 		RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
-			 ("recv_func: process_recv_indicatepkts fail!\n"));
+			 "recv_func: process_recv_indicatepkts fail!\n");
 		rtw_free_recvframe23a(orig_prframe);/* free this recv_frame */
 		goto _recv_data_drop;
 	}
@@ -2334,8 +2304,8 @@ void rtw_signal_stat_timer_hdl23a(unsigned long data)
 
 	/* update value of signal_strength, rssi, signal_qual */
 	if (!check_fwstate(&adapter->mlmepriv, _FW_UNDER_SURVEY)) {
-		tmp_s = (avg_signal_strength + (_alpha - 1) *
-			 recvpriv->signal_strength);
+		tmp_s = avg_signal_strength + (_alpha - 1) *
+			 recvpriv->signal_strength;
 		if (tmp_s %_alpha)
 			tmp_s = tmp_s / _alpha + 1;
 		else
diff --git a/drivers/staging/rtl8723au/core/rtw_security.c b/drivers/staging/rtl8723au/core/rtw_security.c
index 715a474..af53c92 100644
--- a/drivers/staging/rtl8723au/core/rtw_security.c
+++ b/drivers/staging/rtl8723au/core/rtw_security.c
@@ -31,11 +31,11 @@ struct arc4context {
 
 static void arcfour_init(struct arc4context *parc4ctx, u8 *key, u32 key_len)
 {
-	u32	t, u;
-	u32	keyindex;
-	u32	stateindex;
+	u32 t, u;
+	u32 keyindex;
+	u32 stateindex;
 	u8 *state;
-	u32	counter;
+	u32 counter;
 
 	state = parc4ctx->state;
 	parc4ctx->x = 0;
@@ -55,7 +55,8 @@ static void arcfour_init(struct arc4context *parc4ctx, u8 *key, u32 key_len)
 	}
 
 }
-static u32 arcfour_byte(	struct arc4context	*parc4ctx)
+
+static u32 arcfour_byte(struct arc4context *parc4ctx)
 {
 	u32 x;
 	u32 y;
@@ -75,19 +76,16 @@ static u32 arcfour_byte(	struct arc4context	*parc4ctx)
 	return state[(sx + sy) & 0xff];
 }
 
-static void arcfour_encrypt(	struct arc4context	*parc4ctx,
-	u8 *dest,
-	u8 *src,
-	u32 len)
+static void arcfour_encrypt(struct arc4context *parc4ctx, u8 *dest,
+			    u8 *src, u32 len)
 {
-	u32	i;
+	u32 i;
 
 	for (i = 0; i < len; i++)
 		dest[i] = src[i] ^ (unsigned char)arcfour_byte(parc4ctx);
-
 }
 
-static int bcrc32initialized = 0;
+static int bcrc32initialized;
 static u32 crc32_table[256];
 
 static u8 crc32_reverseBit(u8 data)
@@ -101,46 +99,48 @@ static u8 crc32_reverseBit(u8 data)
 
 static void crc32_init(void)
 {
+	int i, j;
+	u32 c;
+	u8 *p, *p1;
+	u8 k;
 
 	if (bcrc32initialized == 1)
 		return;
-	else{
-		int i, j;
-		u32 c;
-		u8 *p = (u8 *)&c, *p1;
-		u8 k;
-
-		c = 0x12340000;
-
-		for (i = 0; i < 256; ++i) {
-			k = crc32_reverseBit((u8)i);
-			for (c = ((u32)k) << 24, j = 8; j > 0; --j) {
-				c = c & 0x80000000 ? (c << 1) ^ CRC32_POLY : (c << 1);
-			}
-			p1 = (u8 *)&crc32_table[i];
-
-			p1[0] = crc32_reverseBit(p[3]);
-			p1[1] = crc32_reverseBit(p[2]);
-			p1[2] = crc32_reverseBit(p[1]);
-			p1[3] = crc32_reverseBit(p[0]);
-		}
-		bcrc32initialized = 1;
+
+	p = (u8 *) &c;
+	c = 0x12340000;
+
+	for (i = 0; i < 256; ++i) {
+		k = crc32_reverseBit((u8)i);
+
+		for (c = ((u32)k) << 24, j = 8; j > 0; --j)
+			c = c & 0x80000000 ? (c << 1) ^ CRC32_POLY : (c << 1);
+
+		p1 = (u8 *)&crc32_table[i];
+
+		p1[0] = crc32_reverseBit(p[3]);
+		p1[1] = crc32_reverseBit(p[2]);
+		p1[2] = crc32_reverseBit(p[1]);
+		p1[3] = crc32_reverseBit(p[0]);
 	}
+
+	bcrc32initialized = 1;
 }
 
 static u32 getcrc32(u8 *buf, int len)
 {
 	u8 *p;
-	u32  crc;
+	u32 crc;
 
-	if (bcrc32initialized == 0) crc32_init();
+	if (bcrc32initialized == 0)
+		crc32_init();
 
-	crc = 0xffffffff;       /* preload shift register, per CRC-32 spec */
+	crc = 0xffffffff; /* preload shift register, per CRC-32 spec */
 
 	for (p = buf; len > 0; ++p, --len)
-		crc = crc32_table[ (crc ^ *p) & 0xff] ^ (crc >> 8);
+		crc = crc32_table[(crc ^ *p) & 0xff] ^ (crc >> 8);
 
-	return ~crc;    /* transmit complement, per CRC-32 spec */
+	return ~crc; /* transmit complement, per CRC-32 spec */
 }
 
 /* Need to consider the fragment  situation */
@@ -152,7 +152,7 @@ void rtw_wep_encrypt23a(struct rtw_adapter *padapter,
 	struct arc4context mycontext;
 	int curfragnum, length, index;
 	u32 keylength;
-	u8 *pframe, *payload, *iv;    /* wepkey */
+	u8 *pframe, *payload, *iv; /* wepkey */
 	u8 wepkey[16];
 	u8 hw_hdr_offset = 0;
 	struct pkt_attrib *pattrib = &pxmitframe->attrib;
@@ -184,7 +184,7 @@ void rtw_wep_encrypt23a(struct rtw_adapter *padapter,
 		if ((curfragnum + 1) == pattrib->nr_frags) {
 			/* the last fragment */
 			length = pattrib->last_txcmdsz - pattrib->hdrlen -
-				pattrib->iv_len- pattrib->icv_len;
+				pattrib->iv_len - pattrib->icv_len;
 
 			*((u32 *)crc) = cpu_to_le32(getcrc32(payload, length));
 
@@ -210,7 +210,7 @@ void rtw_wep_decrypt23a(struct rtw_adapter *padapter,
 		     struct recv_frame *precvframe)
 {
 	/*  exclude ICV */
-	u8 crc[4];
+	u32 actual_crc, expected_crc;
 	struct arc4context mycontext;
 	int length;
 	u32 keylength;
@@ -243,19 +243,14 @@ void rtw_wep_decrypt23a(struct rtw_adapter *padapter,
 	arcfour_encrypt(&mycontext, payload, payload, length);
 
 	/* calculate icv and compare the icv */
-	*((u32 *)crc) = le32_to_cpu(getcrc32(payload, length - 4));
+	actual_crc = le32_to_cpu(getcrc32(payload, length - 4));
+	expected_crc = le32_to_cpu(get_unaligned_le32(&payload[length - 4]));
 
-	if (crc[3] != payload[length - 1] || crc[2] != payload[length - 2] ||
-	    crc[1] != payload[length - 3] || crc[0] != payload[length - 4]) {
+	if (actual_crc != expected_crc) {
 		RT_TRACE(_module_rtl871x_security_c_, _drv_err_,
-			 ("rtw_wep_decrypt23a:icv error crc[3](%x)!= payload"
-			  "[length-1](%x) || crc[2](%x)!= payload[length-2](%x)"
-			  " || crc[1](%x)!= payload[length-3](%x) || crc[0](%x)"
-			  "!= payload[length-4](%x)\n",
-			  crc[3], payload[length - 1],
-			  crc[2], payload[length - 2],
-			  crc[1], payload[length - 3],
-			  crc[0], payload[length - 4]));
+			 "%s:icv CRC mismatch: "
+			 "actual: %08x, expected: %08x\n",
+			 __func__, actual_crc, expected_crc);
 	}
 }
 
@@ -267,9 +262,8 @@ static u32 secmicgetuint32(u8 *p)
 	s32 i;
 	u32 res = 0;
 
-	for (i = 0; i<4; i++) {
-		res |= ((u32)(*p++)) << (8*i);
-	}
+	for (i = 0; i < 4; i++)
+		res |= ((u32)(*p++)) << (8 * i);
 
 	return res;
 }
@@ -279,7 +273,7 @@ static void secmicputuint32(u8 *p, u32 val)
 {
 	long i;
 
-	for (i = 0; i<4; i++) {
+	for (i = 0; i < 4; i++) {
 		*p++ = (u8) (val & 0xff);
 		val >>= 8;
 	}
@@ -312,7 +306,7 @@ void rtw_secmicappend23abyte23a(struct mic_data *pmicdata, u8 b)
 {
 
 	/*  Append the byte to our word-sized buffer */
-	pmicdata->M |= ((unsigned long)b) << (8*pmicdata->nBytesInM);
+	pmicdata->M |= ((unsigned long)b) << (8 * pmicdata->nBytesInM);
 	pmicdata->nBytesInM++;
 	/*  Process the word if it is full. */
 	if (pmicdata->nBytesInM >= 4) {
@@ -336,7 +330,7 @@ void rtw_secmicappend23a(struct mic_data *pmicdata, u8 *src, u32 nbytes)
 {
 
 	/*  This is simple */
-	while(nbytes > 0) {
+	while (nbytes > 0) {
 		rtw_secmicappend23abyte23a(pmicdata, *src++);
 		nbytes--;
 	}
@@ -353,12 +347,11 @@ void rtw_secgetmic23a(struct mic_data *pmicdata, u8 *dst)
 	rtw_secmicappend23abyte23a(pmicdata, 0);
 	rtw_secmicappend23abyte23a(pmicdata, 0);
 	/*  and then zeroes until the length is a multiple of 4 */
-	while(pmicdata->nBytesInM != 0) {
+	while (pmicdata->nBytesInM != 0)
 		rtw_secmicappend23abyte23a(pmicdata, 0);
-	}
 	/*  The appendByte function has already computed the result. */
 	secmicputuint32(dst, pmicdata->L);
-	secmicputuint32(dst+4, pmicdata->R);
+	secmicputuint32(dst + 4, pmicdata->R);
 	/*  Reset to the empty message. */
 	secmicclear(pmicdata);
 
@@ -368,23 +361,22 @@ void rtw_seccalctkipmic23a(u8 *key, u8 *header, u8 *data, u32 data_len,
 			   u8 *mic_code, u8 pri)
 {
 
-	struct mic_data	micdata;
-	u8 priority[4]={0x0, 0x0, 0x0, 0x0};
+	struct mic_data micdata;
+	u8 priority[4] = {0x0, 0x0, 0x0, 0x0};
 
 	rtw_secmicsetkey23a(&micdata, key);
-	priority[0]= pri;
+	priority[0] = pri;
 
 	/* Michael MIC pseudo header: DA, SA, 3 x 0, Priority */
-	if (header[1]&1) {   /* ToDS == 1 */
-			rtw_secmicappend23a(&micdata, &header[16], 6);  /* DA */
-		if (header[1]&2)  /* From Ds == 1 */
+	if (header[1]&1) { /* ToDS == 1 */
+			rtw_secmicappend23a(&micdata, &header[16], 6); /* DA */
+		if (header[1]&2) /* From Ds == 1 */
 			rtw_secmicappend23a(&micdata, &header[24], 6);
 		else
 			rtw_secmicappend23a(&micdata, &header[10], 6);
-	}
-	else{	/* ToDS == 0 */
-		rtw_secmicappend23a(&micdata, &header[4], 6);   /* DA */
-		if (header[1]&2)  /* From Ds == 1 */
+	} else { /* ToDS == 0 */
+		rtw_secmicappend23a(&micdata, &header[4], 6); /* DA */
+		if (header[1]&2) /* From Ds == 1 */
 			rtw_secmicappend23a(&micdata, &header[16], 6);
 		else
 			rtw_secmicappend23a(&micdata, &header[10], 6);
@@ -403,11 +395,11 @@ void rtw_seccalctkipmic23a(u8 *key, u8 *header, u8 *data, u32 data_len,
 #define   Lo8(v16)   ((u8)((v16)       & 0x00FF))
 #define   Hi8(v16)   ((u8)(((v16) >> 8) & 0x00FF))
 #define  Lo16(v32)   ((u16)((v32)       & 0xFFFF))
-#define  Hi16(v32)   ((u16)(((v32) >>16) & 0xFFFF))
+#define  Hi16(v32)   ((u16)(((v32) >> 16) & 0xFFFF))
 #define  Mk16(hi, lo) ((lo) ^ (((u16)(hi)) << 8))
 
-/* select the Nth 16-bit word of the temporal key unsigned char array TK[]   */
-#define  TK16(N)     Mk16(tk[2*(N)+1], tk[2*(N)])
+/* select the Nth 16-bit word of the temporal key unsigned char array TK[] */
+#define  TK16(N)     Mk16(tk[2 * (N) + 1], tk[2 * (N)])
 
 /* S-box lookup: 16 bits --> 16 bits */
 #define _S_(v16)     (Sbox1[0][Lo8(v16)] ^ Sbox1[1][Hi8(v16)])
@@ -420,76 +412,76 @@ void rtw_seccalctkipmic23a(u8 *key, u8 *header, u8 *data, u32 data_len,
 #define RC4_KEY_SIZE     16    /* 128-bit RC4KEY (104 bits unknown) */
 
 /* 2-unsigned char by 2-unsigned char subset of the full AES S-box table */
-static const unsigned short Sbox1[2][256]=       /* Sbox for hash (can be in ROM)     */
-{ {
-   0xC6A5, 0xF884, 0xEE99, 0xF68D, 0xFF0D, 0xD6BD, 0xDEB1, 0x9154,
-   0x6050, 0x0203, 0xCEA9, 0x567D, 0xE719, 0xB562, 0x4DE6, 0xEC9A,
-   0x8F45, 0x1F9D, 0x8940, 0xFA87, 0xEF15, 0xB2EB, 0x8EC9, 0xFB0B,
-   0x41EC, 0xB367, 0x5FFD, 0x45EA, 0x23BF, 0x53F7, 0xE496, 0x9B5B,
-   0x75C2, 0xE11C, 0x3DAE, 0x4C6A, 0x6C5A, 0x7E41, 0xF502, 0x834F,
-   0x685C, 0x51F4, 0xD134, 0xF908, 0xE293, 0xAB73, 0x6253, 0x2A3F,
-   0x080C, 0x9552, 0x4665, 0x9D5E, 0x3028, 0x37A1, 0x0A0F, 0x2FB5,
-   0x0E09, 0x2436, 0x1B9B, 0xDF3D, 0xCD26, 0x4E69, 0x7FCD, 0xEA9F,
-   0x121B, 0x1D9E, 0x5874, 0x342E, 0x362D, 0xDCB2, 0xB4EE, 0x5BFB,
-   0xA4F6, 0x764D, 0xB761, 0x7DCE, 0x527B, 0xDD3E, 0x5E71, 0x1397,
-   0xA6F5, 0xB968, 0x0000, 0xC12C, 0x4060, 0xE31F, 0x79C8, 0xB6ED,
-   0xD4BE, 0x8D46, 0x67D9, 0x724B, 0x94DE, 0x98D4, 0xB0E8, 0x854A,
-   0xBB6B, 0xC52A, 0x4FE5, 0xED16, 0x86C5, 0x9AD7, 0x6655, 0x1194,
-   0x8ACF, 0xE910, 0x0406, 0xFE81, 0xA0F0, 0x7844, 0x25BA, 0x4BE3,
-   0xA2F3, 0x5DFE, 0x80C0, 0x058A, 0x3FAD, 0x21BC, 0x7048, 0xF104,
-   0x63DF, 0x77C1, 0xAF75, 0x4263, 0x2030, 0xE51A, 0xFD0E, 0xBF6D,
-   0x814C, 0x1814, 0x2635, 0xC32F, 0xBEE1, 0x35A2, 0x88CC, 0x2E39,
-   0x9357, 0x55F2, 0xFC82, 0x7A47, 0xC8AC, 0xBAE7, 0x322B, 0xE695,
-   0xC0A0, 0x1998, 0x9ED1, 0xA37F, 0x4466, 0x547E, 0x3BAB, 0x0B83,
-   0x8CCA, 0xC729, 0x6BD3, 0x283C, 0xA779, 0xBCE2, 0x161D, 0xAD76,
-   0xDB3B, 0x6456, 0x744E, 0x141E, 0x92DB, 0x0C0A, 0x486C, 0xB8E4,
-   0x9F5D, 0xBD6E, 0x43EF, 0xC4A6, 0x39A8, 0x31A4, 0xD337, 0xF28B,
-   0xD532, 0x8B43, 0x6E59, 0xDAB7, 0x018C, 0xB164, 0x9CD2, 0x49E0,
-   0xD8B4, 0xACFA, 0xF307, 0xCF25, 0xCAAF, 0xF48E, 0x47E9, 0x1018,
-   0x6FD5, 0xF088, 0x4A6F, 0x5C72, 0x3824, 0x57F1, 0x73C7, 0x9751,
-   0xCB23, 0xA17C, 0xE89C, 0x3E21, 0x96DD, 0x61DC, 0x0D86, 0x0F85,
-   0xE090, 0x7C42, 0x71C4, 0xCCAA, 0x90D8, 0x0605, 0xF701, 0x1C12,
-   0xC2A3, 0x6A5F, 0xAEF9, 0x69D0, 0x1791, 0x9958, 0x3A27, 0x27B9,
-   0xD938, 0xEB13, 0x2BB3, 0x2233, 0xD2BB, 0xA970, 0x0789, 0x33A7,
-   0x2DB6, 0x3C22, 0x1592, 0xC920, 0x8749, 0xAAFF, 0x5078, 0xA57A,
-   0x038F, 0x59F8, 0x0980, 0x1A17, 0x65DA, 0xD731, 0x84C6, 0xD0B8,
-   0x82C3, 0x29B0, 0x5A77, 0x1E11, 0x7BCB, 0xA8FC, 0x6DD6, 0x2C3A,
-  },
-
-  {  /* second half of table is unsigned char-reversed version of first! */
-   0xA5C6, 0x84F8, 0x99EE, 0x8DF6, 0x0DFF, 0xBDD6, 0xB1DE, 0x5491,
-   0x5060, 0x0302, 0xA9CE, 0x7D56, 0x19E7, 0x62B5, 0xE64D, 0x9AEC,
-   0x458F, 0x9D1F, 0x4089, 0x87FA, 0x15EF, 0xEBB2, 0xC98E, 0x0BFB,
-   0xEC41, 0x67B3, 0xFD5F, 0xEA45, 0xBF23, 0xF753, 0x96E4, 0x5B9B,
-   0xC275, 0x1CE1, 0xAE3D, 0x6A4C, 0x5A6C, 0x417E, 0x02F5, 0x4F83,
-   0x5C68, 0xF451, 0x34D1, 0x08F9, 0x93E2, 0x73AB, 0x5362, 0x3F2A,
-   0x0C08, 0x5295, 0x6546, 0x5E9D, 0x2830, 0xA137, 0x0F0A, 0xB52F,
-   0x090E, 0x3624, 0x9B1B, 0x3DDF, 0x26CD, 0x694E, 0xCD7F, 0x9FEA,
-   0x1B12, 0x9E1D, 0x7458, 0x2E34, 0x2D36, 0xB2DC, 0xEEB4, 0xFB5B,
-   0xF6A4, 0x4D76, 0x61B7, 0xCE7D, 0x7B52, 0x3EDD, 0x715E, 0x9713,
-   0xF5A6, 0x68B9, 0x0000, 0x2CC1, 0x6040, 0x1FE3, 0xC879, 0xEDB6,
-   0xBED4, 0x468D, 0xD967, 0x4B72, 0xDE94, 0xD498, 0xE8B0, 0x4A85,
-   0x6BBB, 0x2AC5, 0xE54F, 0x16ED, 0xC586, 0xD79A, 0x5566, 0x9411,
-   0xCF8A, 0x10E9, 0x0604, 0x81FE, 0xF0A0, 0x4478, 0xBA25, 0xE34B,
-   0xF3A2, 0xFE5D, 0xC080, 0x8A05, 0xAD3F, 0xBC21, 0x4870, 0x04F1,
-   0xDF63, 0xC177, 0x75AF, 0x6342, 0x3020, 0x1AE5, 0x0EFD, 0x6DBF,
-   0x4C81, 0x1418, 0x3526, 0x2FC3, 0xE1BE, 0xA235, 0xCC88, 0x392E,
-   0x5793, 0xF255, 0x82FC, 0x477A, 0xACC8, 0xE7BA, 0x2B32, 0x95E6,
-   0xA0C0, 0x9819, 0xD19E, 0x7FA3, 0x6644, 0x7E54, 0xAB3B, 0x830B,
-   0xCA8C, 0x29C7, 0xD36B, 0x3C28, 0x79A7, 0xE2BC, 0x1D16, 0x76AD,
-   0x3BDB, 0x5664, 0x4E74, 0x1E14, 0xDB92, 0x0A0C, 0x6C48, 0xE4B8,
-   0x5D9F, 0x6EBD, 0xEF43, 0xA6C4, 0xA839, 0xA431, 0x37D3, 0x8BF2,
-   0x32D5, 0x438B, 0x596E, 0xB7DA, 0x8C01, 0x64B1, 0xD29C, 0xE049,
-   0xB4D8, 0xFAAC, 0x07F3, 0x25CF, 0xAFCA, 0x8EF4, 0xE947, 0x1810,
-   0xD56F, 0x88F0, 0x6F4A, 0x725C, 0x2438, 0xF157, 0xC773, 0x5197,
-   0x23CB, 0x7CA1, 0x9CE8, 0x213E, 0xDD96, 0xDC61, 0x860D, 0x850F,
-   0x90E0, 0x427C, 0xC471, 0xAACC, 0xD890, 0x0506, 0x01F7, 0x121C,
-   0xA3C2, 0x5F6A, 0xF9AE, 0xD069, 0x9117, 0x5899, 0x273A, 0xB927,
-   0x38D9, 0x13EB, 0xB32B, 0x3322, 0xBBD2, 0x70A9, 0x8907, 0xA733,
-   0xB62D, 0x223C, 0x9215, 0x20C9, 0x4987, 0xFFAA, 0x7850, 0x7AA5,
-   0x8F03, 0xF859, 0x8009, 0x171A, 0xDA65, 0x31D7, 0xC684, 0xB8D0,
-   0xC382, 0xB029, 0x775A, 0x111E, 0xCB7B, 0xFCA8, 0xD66D, 0x3A2C,
-  }
+static const unsigned short Sbox1[2][256] = {
+	/* Sbox for hash (can be in ROM) */
+	{
+		0xC6A5, 0xF884, 0xEE99, 0xF68D, 0xFF0D, 0xD6BD, 0xDEB1, 0x9154,
+		0x6050, 0x0203, 0xCEA9, 0x567D, 0xE719, 0xB562, 0x4DE6, 0xEC9A,
+		0x8F45, 0x1F9D, 0x8940, 0xFA87, 0xEF15, 0xB2EB, 0x8EC9, 0xFB0B,
+		0x41EC, 0xB367, 0x5FFD, 0x45EA, 0x23BF, 0x53F7, 0xE496, 0x9B5B,
+		0x75C2, 0xE11C, 0x3DAE, 0x4C6A, 0x6C5A, 0x7E41, 0xF502, 0x834F,
+		0x685C, 0x51F4, 0xD134, 0xF908, 0xE293, 0xAB73, 0x6253, 0x2A3F,
+		0x080C, 0x9552, 0x4665, 0x9D5E, 0x3028, 0x37A1, 0x0A0F, 0x2FB5,
+		0x0E09, 0x2436, 0x1B9B, 0xDF3D, 0xCD26, 0x4E69, 0x7FCD, 0xEA9F,
+		0x121B, 0x1D9E, 0x5874, 0x342E, 0x362D, 0xDCB2, 0xB4EE, 0x5BFB,
+		0xA4F6, 0x764D, 0xB761, 0x7DCE, 0x527B, 0xDD3E, 0x5E71, 0x1397,
+		0xA6F5, 0xB968, 0x0000, 0xC12C, 0x4060, 0xE31F, 0x79C8, 0xB6ED,
+		0xD4BE, 0x8D46, 0x67D9, 0x724B, 0x94DE, 0x98D4, 0xB0E8, 0x854A,
+		0xBB6B, 0xC52A, 0x4FE5, 0xED16, 0x86C5, 0x9AD7, 0x6655, 0x1194,
+		0x8ACF, 0xE910, 0x0406, 0xFE81, 0xA0F0, 0x7844, 0x25BA, 0x4BE3,
+		0xA2F3, 0x5DFE, 0x80C0, 0x058A, 0x3FAD, 0x21BC, 0x7048, 0xF104,
+		0x63DF, 0x77C1, 0xAF75, 0x4263, 0x2030, 0xE51A, 0xFD0E, 0xBF6D,
+		0x814C, 0x1814, 0x2635, 0xC32F, 0xBEE1, 0x35A2, 0x88CC, 0x2E39,
+		0x9357, 0x55F2, 0xFC82, 0x7A47, 0xC8AC, 0xBAE7, 0x322B, 0xE695,
+		0xC0A0, 0x1998, 0x9ED1, 0xA37F, 0x4466, 0x547E, 0x3BAB, 0x0B83,
+		0x8CCA, 0xC729, 0x6BD3, 0x283C, 0xA779, 0xBCE2, 0x161D, 0xAD76,
+		0xDB3B, 0x6456, 0x744E, 0x141E, 0x92DB, 0x0C0A, 0x486C, 0xB8E4,
+		0x9F5D, 0xBD6E, 0x43EF, 0xC4A6, 0x39A8, 0x31A4, 0xD337, 0xF28B,
+		0xD532, 0x8B43, 0x6E59, 0xDAB7, 0x018C, 0xB164, 0x9CD2, 0x49E0,
+		0xD8B4, 0xACFA, 0xF307, 0xCF25, 0xCAAF, 0xF48E, 0x47E9, 0x1018,
+		0x6FD5, 0xF088, 0x4A6F, 0x5C72, 0x3824, 0x57F1, 0x73C7, 0x9751,
+		0xCB23, 0xA17C, 0xE89C, 0x3E21, 0x96DD, 0x61DC, 0x0D86, 0x0F85,
+		0xE090, 0x7C42, 0x71C4, 0xCCAA, 0x90D8, 0x0605, 0xF701, 0x1C12,
+		0xC2A3, 0x6A5F, 0xAEF9, 0x69D0, 0x1791, 0x9958, 0x3A27, 0x27B9,
+		0xD938, 0xEB13, 0x2BB3, 0x2233, 0xD2BB, 0xA970, 0x0789, 0x33A7,
+		0x2DB6, 0x3C22, 0x1592, 0xC920, 0x8749, 0xAAFF, 0x5078, 0xA57A,
+		0x038F, 0x59F8, 0x0980, 0x1A17, 0x65DA, 0xD731, 0x84C6, 0xD0B8,
+		0x82C3, 0x29B0, 0x5A77, 0x1E11, 0x7BCB, 0xA8FC, 0x6DD6, 0x2C3A,
+	},
+	{ /* second half of table is unsigned char-reversed version of first! */
+		0xA5C6, 0x84F8, 0x99EE, 0x8DF6, 0x0DFF, 0xBDD6, 0xB1DE, 0x5491,
+		0x5060, 0x0302, 0xA9CE, 0x7D56, 0x19E7, 0x62B5, 0xE64D, 0x9AEC,
+		0x458F, 0x9D1F, 0x4089, 0x87FA, 0x15EF, 0xEBB2, 0xC98E, 0x0BFB,
+		0xEC41, 0x67B3, 0xFD5F, 0xEA45, 0xBF23, 0xF753, 0x96E4, 0x5B9B,
+		0xC275, 0x1CE1, 0xAE3D, 0x6A4C, 0x5A6C, 0x417E, 0x02F5, 0x4F83,
+		0x5C68, 0xF451, 0x34D1, 0x08F9, 0x93E2, 0x73AB, 0x5362, 0x3F2A,
+		0x0C08, 0x5295, 0x6546, 0x5E9D, 0x2830, 0xA137, 0x0F0A, 0xB52F,
+		0x090E, 0x3624, 0x9B1B, 0x3DDF, 0x26CD, 0x694E, 0xCD7F, 0x9FEA,
+		0x1B12, 0x9E1D, 0x7458, 0x2E34, 0x2D36, 0xB2DC, 0xEEB4, 0xFB5B,
+		0xF6A4, 0x4D76, 0x61B7, 0xCE7D, 0x7B52, 0x3EDD, 0x715E, 0x9713,
+		0xF5A6, 0x68B9, 0x0000, 0x2CC1, 0x6040, 0x1FE3, 0xC879, 0xEDB6,
+		0xBED4, 0x468D, 0xD967, 0x4B72, 0xDE94, 0xD498, 0xE8B0, 0x4A85,
+		0x6BBB, 0x2AC5, 0xE54F, 0x16ED, 0xC586, 0xD79A, 0x5566, 0x9411,
+		0xCF8A, 0x10E9, 0x0604, 0x81FE, 0xF0A0, 0x4478, 0xBA25, 0xE34B,
+		0xF3A2, 0xFE5D, 0xC080, 0x8A05, 0xAD3F, 0xBC21, 0x4870, 0x04F1,
+		0xDF63, 0xC177, 0x75AF, 0x6342, 0x3020, 0x1AE5, 0x0EFD, 0x6DBF,
+		0x4C81, 0x1418, 0x3526, 0x2FC3, 0xE1BE, 0xA235, 0xCC88, 0x392E,
+		0x5793, 0xF255, 0x82FC, 0x477A, 0xACC8, 0xE7BA, 0x2B32, 0x95E6,
+		0xA0C0, 0x9819, 0xD19E, 0x7FA3, 0x6644, 0x7E54, 0xAB3B, 0x830B,
+		0xCA8C, 0x29C7, 0xD36B, 0x3C28, 0x79A7, 0xE2BC, 0x1D16, 0x76AD,
+		0x3BDB, 0x5664, 0x4E74, 0x1E14, 0xDB92, 0x0A0C, 0x6C48, 0xE4B8,
+		0x5D9F, 0x6EBD, 0xEF43, 0xA6C4, 0xA839, 0xA431, 0x37D3, 0x8BF2,
+		0x32D5, 0x438B, 0x596E, 0xB7DA, 0x8C01, 0x64B1, 0xD29C, 0xE049,
+		0xB4D8, 0xFAAC, 0x07F3, 0x25CF, 0xAFCA, 0x8EF4, 0xE947, 0x1810,
+		0xD56F, 0x88F0, 0x6F4A, 0x725C, 0x2438, 0xF157, 0xC773, 0x5197,
+		0x23CB, 0x7CA1, 0x9CE8, 0x213E, 0xDD96, 0xDC61, 0x860D, 0x850F,
+		0x90E0, 0x427C, 0xC471, 0xAACC, 0xD890, 0x0506, 0x01F7, 0x121C,
+		0xA3C2, 0x5F6A, 0xF9AE, 0xD069, 0x9117, 0x5899, 0x273A, 0xB927,
+		0x38D9, 0x13EB, 0xB32B, 0x3322, 0xBBD2, 0x70A9, 0x8907, 0xA733,
+		0xB62D, 0x223C, 0x9215, 0x20C9, 0x4987, 0xFFAA, 0x7850, 0x7AA5,
+		0x8F03, 0xF859, 0x8009, 0x171A, 0xDA65, 0x31D7, 0xC684, 0xB8D0,
+		0xC382, 0xB029, 0x775A, 0x111E, 0xCB7B, 0xFCA8, 0xD66D, 0x3A2C,
+	}
 };
 
  /*
@@ -513,7 +505,7 @@ static void phase1(u16 *p1k, const u8 *tk, const u8 *ta, u32 iv32)
 {
 	int  i;
 
-	/* Initialize the 80 bits of P1K[] from IV32 and TA[0..5]     */
+	/* Initialize the 80 bits of P1K[] from IV32 and TA[0..5] */
 	p1k[0]      = Lo16(iv32);
 	p1k[1]      = Hi16(iv32);
 	p1k[2]      = Mk16(ta[1], ta[0]); /* use TA[] as little-endian */
@@ -522,14 +514,14 @@ static void phase1(u16 *p1k, const u8 *tk, const u8 *ta, u32 iv32)
 
 	/* Now compute an unbalanced Feistel cipher with 80-bit block */
 	/* size on the 80-bit block P1K[], using the 128-bit key TK[] */
-	for (i = 0; i < PHASE1_LOOP_CNT ;i++) {
+	for (i = 0; i < PHASE1_LOOP_CNT; i++) {
 		/* Each add operation here is mod 2**16 */
-		p1k[0] += _S_(p1k[4] ^ TK16((i&1)+0));
-		p1k[1] += _S_(p1k[0] ^ TK16((i&1)+2));
-		p1k[2] += _S_(p1k[1] ^ TK16((i&1)+4));
-		p1k[3] += _S_(p1k[2] ^ TK16((i&1)+6));
-		p1k[4] += _S_(p1k[3] ^ TK16((i&1)+0));
-		p1k[4] +=  (unsigned short)i;                    /* avoid "slide attacks" */
+		p1k[0] += _S_(p1k[4] ^ TK16((i & 1) + 0));
+		p1k[1] += _S_(p1k[0] ^ TK16((i & 1) + 2));
+		p1k[2] += _S_(p1k[1] ^ TK16((i & 1) + 4));
+		p1k[3] += _S_(p1k[2] ^ TK16((i & 1) + 6));
+		p1k[4] += _S_(p1k[3] ^ TK16((i & 1) + 0));
+		p1k[4] +=  (unsigned short) i; /* avoid "slide attacks" */
 		}
 
 }
@@ -560,42 +552,44 @@ static void phase1(u16 *p1k, const u8 *tk, const u8 *ta, u32 iv32)
 static void phase2(u8 *rc4key, const u8 *tk, const u16 *p1k, u16 iv16)
 {
 	int  i;
-	u16 PPK[6];                          /* temporary key for mixing    */
+	u16 PPK[6]; /* temporary key for mixing    */
+
+	/* Note: all adds in the PPK[] equations below are mod 2**16 */
+	for (i = 0; i < 5; i++)
+		PPK[i] = p1k[i]; /* first, copy P1K to PPK */
 
-	/* Note: all adds in the PPK[] equations below are mod 2**16         */
-	for (i = 0;i<5;i++) PPK[i]= p1k[i];      /* first, copy P1K to PPK      */
-		PPK[5]  =  p1k[4] +iv16;             /* next,  add in IV16          */
+	PPK[5] = p1k[4] + iv16; /* next,  add in IV16 */
 
-	/* Bijective non-linear mixing of the 96 bits of PPK[0..5]           */
-	PPK[0] +=    _S_(PPK[5] ^ TK16(0));   /* Mix key in each "round"     */
-	PPK[1] +=    _S_(PPK[0] ^ TK16(1));
-	PPK[2] +=    _S_(PPK[1] ^ TK16(2));
-	PPK[3] +=    _S_(PPK[2] ^ TK16(3));
-	PPK[4] +=    _S_(PPK[3] ^ TK16(4));
-	PPK[5] +=    _S_(PPK[4] ^ TK16(5));   /* Total # S-box lookups == 6  */
+	/* Bijective non-linear mixing of the 96 bits of PPK[0..5] */
+	PPK[0] += _S_(PPK[5] ^ TK16(0)); /* Mix key in each "round" */
+	PPK[1] += _S_(PPK[0] ^ TK16(1));
+	PPK[2] += _S_(PPK[1] ^ TK16(2));
+	PPK[3] += _S_(PPK[2] ^ TK16(3));
+	PPK[4] += _S_(PPK[3] ^ TK16(4));
+	PPK[5] += _S_(PPK[4] ^ TK16(5)); /* Total # S-box lookups == 6 */
 
-	/* Final sweep: bijective, "linear". Rotates kill LSB correlations   */
+	/* Final sweep: bijective, "linear". Rotates kill LSB correlations */
 	PPK[0] +=  RotR1(PPK[5] ^ TK16(6));
-	PPK[1] +=  RotR1(PPK[0] ^ TK16(7));   /* Use all of TK[] in Phase2   */
+	PPK[1] +=  RotR1(PPK[0] ^ TK16(7)); /* Use all of TK[] in Phase2 */
 	PPK[2] +=  RotR1(PPK[1]);
 	PPK[3] +=  RotR1(PPK[2]);
 	PPK[4] +=  RotR1(PPK[3]);
 	PPK[5] +=  RotR1(PPK[4]);
 	/* Note: At this point, for a given key TK[0..15], the 96-bit output */
 	/*       value PPK[0..5] is guaranteed to be unique, as a function   */
-	/*       of the 96-bit "input" value   {TA, IV32, IV16}. That is, P1K  */
-	/*       is now a keyed permutation of {TA, IV32, IV16}.               */
+	/*       of the 96-bit "input" value   {TA, IV32, IV16}. That is,    */
+	/*       P1K is now a keyed permutation of {TA, IV32, IV16}.         */
 
 	/* Set RC4KEY[0..3], which includes "cleartext" portion of RC4 key   */
-	rc4key[0] = Hi8(iv16);                /* RC4KEY[0..2] is the WEP IV  */
-	rc4key[1] = (Hi8(iv16) | 0x20) & 0x7F; /* Help avoid weak (FMS) keys  */
+	rc4key[0] = Hi8(iv16);                 /* RC4KEY[0..2] is the WEP IV */
+	rc4key[1] = (Hi8(iv16) | 0x20) & 0x7F; /* Help avoid weak (FMS) keys */
 	rc4key[2] = Lo8(iv16);
 	rc4key[3] = Lo8((PPK[5] ^ TK16(0)) >> 1);
 
-	/* Copy 96 bits of PPK[0..5] to RC4KEY[4..15]  (little-endian)       */
-	for (i = 0;i<6;i++) {
-		rc4key[4+2*i] = Lo8(PPK[i]);
-		rc4key[5+2*i] = Hi8(PPK[i]);
+	/* Copy 96 bits of PPK[0..5] to RC4KEY[4..15]  (little-endian) */
+	for (i = 0; i < 6; i++) {
+		rc4key[4 + 2 * i] = Lo8(PPK[i]);
+		rc4key[5 + 2 * i] = Hi8(PPK[i]);
 	}
 
 }
@@ -604,97 +598,107 @@ static void phase2(u8 *rc4key, const u8 *tk, const u16 *p1k, u16 iv16)
 int rtw_tkip_encrypt23a(struct rtw_adapter *padapter,
 			struct xmit_frame *pxmitframe)
 {
-	u16	pnl;
-	u32	pnh;
-	u8	rc4key[16];
-	u8   ttkey[16];
-	u8	crc[4];
-	u8   hw_hdr_offset = 0;
+	u16 pnl;
+	u32 pnh;
+	u8 rc4key[16];
+	u8 ttkey[16];
+	u8 crc[4];
+	u8 hw_hdr_offset = 0;
 	struct arc4context mycontext;
-	int			curfragnum, length;
-	u32	prwskeylen;
-	u8	*pframe, *payload, *iv, *prwskey;
+	int curfragnum, length;
+	u32 prwskeylen;
+	u8 *pframe, *payload, *iv, *prwskey;
 	union pn48 dot11txpn;
-	struct	sta_info		*stainfo;
-	struct	pkt_attrib	 *pattrib = &pxmitframe->attrib;
-	struct	security_priv	*psecuritypriv = &padapter->securitypriv;
-	struct	xmit_priv		*pxmitpriv = &padapter->xmitpriv;
+	struct sta_info *stainfo;
+	struct pkt_attrib *pattrib = &pxmitframe->attrib;
+	struct security_priv *psecuritypriv = &padapter->securitypriv;
+	struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
 	int res = _SUCCESS;
 
+	if (pattrib->encrypt != WLAN_CIPHER_SUITE_TKIP)
+		return _FAIL;
+
 	if (!pxmitframe->buf_addr)
 		return _FAIL;
 
 	hw_hdr_offset = TXDESC_OFFSET;
 
 	pframe = pxmitframe->buf_addr + hw_hdr_offset;
-	/* 4 start to encrypt each fragment */
-	if (pattrib->encrypt == WLAN_CIPHER_SUITE_TKIP) {
-		if (pattrib->psta)
-			stainfo = pattrib->psta;
-		else {
-			DBG_8723A("%s, call rtw_get_stainfo()\n", __func__);
-			stainfo = rtw_get_stainfo23a(&padapter->stapriv,
-						     &pattrib->ra[0]);
-		}
 
-		if (stainfo!= NULL) {
+	if (pattrib->psta)
+		stainfo = pattrib->psta;
+	else {
+		DBG_8723A("%s, call rtw_get_stainfo()\n", __func__);
+		stainfo = rtw_get_stainfo23a(&padapter->stapriv,
+					     &pattrib->ra[0]);
+	}
 
-			if (!(stainfo->state &_FW_LINKED)) {
-				DBG_8723A("%s, psta->state(0x%x) != _FW_LINKED\n", __func__, stainfo->state);
-				return _FAIL;
-			}
+	if (stainfo == NULL) {
+		RT_TRACE(_module_rtl871x_security_c_, _drv_err_,
+			 "%s: stainfo == NULL!!!\n", __func__);
+		DBG_8723A("%s, psta == NUL\n", __func__);
+		return _FAIL;
+	}
 
-			RT_TRACE(_module_rtl871x_security_c_, _drv_err_, ("rtw_tkip_encrypt23a: stainfo!= NULL!!!\n"));
+	RT_TRACE(_module_rtl871x_security_c_, _drv_err_,
+		 "%s: stainfo!= NULL!!!\n", __func__);
 
-			if (is_multicast_ether_addr(pattrib->ra))
-				prwskey = psecuritypriv->dot118021XGrpKey[psecuritypriv->dot118021XGrpKeyid].skey;
-			else
-				prwskey = &stainfo->dot118021x_UncstKey.skey[0];
+	if (!(stainfo->state & _FW_LINKED)) {
+		DBG_8723A("%s, psta->state(0x%x) != _FW_LINKED\n", __func__, stainfo->state);
+		return _FAIL;
+	}
 
-			prwskeylen = 16;
+	if (is_multicast_ether_addr(pattrib->ra))
+		prwskey = psecuritypriv->dot118021XGrpKey[psecuritypriv->dot118021XGrpKeyid].skey;
+	else
+		prwskey = &stainfo->dot118021x_UncstKey.skey[0];
 
-			for (curfragnum = 0;curfragnum<pattrib->nr_frags;curfragnum++) {
-				iv = pframe+pattrib->hdrlen;
-				payload = pframe+pattrib->iv_len+pattrib->hdrlen;
+	prwskeylen = 16;
 
-				GET_TKIP_PN(iv, dot11txpn);
+	/* 4 start to encrypt each fragment */
+	for (curfragnum = 0; curfragnum < pattrib->nr_frags; curfragnum++) {
+		iv = pframe + pattrib->hdrlen;
+		payload = pframe + pattrib->iv_len + pattrib->hdrlen;
 
-				pnl = (u16)(dot11txpn.val);
-				pnh = (u32)(dot11txpn.val>>16);
+		GET_TKIP_PN(iv, dot11txpn);
 
-				phase1((u16 *)&ttkey[0], prwskey,&pattrib->ta[0], pnh);
+		pnl = (u16)(dot11txpn.val);
+		pnh = (u32)(dot11txpn.val>>16);
 
-				phase2(&rc4key[0], prwskey, (u16 *)&ttkey[0], pnl);
+		phase1((u16 *)&ttkey[0], prwskey, &pattrib->ta[0], pnh);
 
-				if ((curfragnum+1) == pattrib->nr_frags) {	/* 4 the last fragment */
-					length = pattrib->last_txcmdsz-pattrib->hdrlen-pattrib->iv_len- pattrib->icv_len;
-					RT_TRACE(_module_rtl871x_security_c_, _drv_info_, ("pattrib->iv_len =%x, pattrib->icv_len =%x\n", pattrib->iv_len, pattrib->icv_len));
-					*((u32 *)crc) = cpu_to_le32(getcrc32(payload, length));/* modified by Amy*/
+		phase2(&rc4key[0], prwskey, (u16 *)&ttkey[0], pnl);
 
-					arcfour_init(&mycontext, rc4key, 16);
-					arcfour_encrypt(&mycontext, payload, payload, length);
-					arcfour_encrypt(&mycontext, payload+length, crc, 4);
+		if ((curfragnum + 1) == pattrib->nr_frags) { /* 4 the last fragment */
+			length = (pattrib->last_txcmdsz -
+				  pattrib->hdrlen -
+				  pattrib->iv_len -
+				  pattrib->icv_len);
 
-				}
-				else{
-					length = pxmitpriv->frag_len-pattrib->hdrlen-pattrib->iv_len-pattrib->icv_len ;
-					*((u32 *)crc) = cpu_to_le32(getcrc32(payload, length));/* modified by Amy*/
-					arcfour_init(&mycontext, rc4key, 16);
-					arcfour_encrypt(&mycontext, payload, payload, length);
-					arcfour_encrypt(&mycontext, payload+length, crc, 4);
+			RT_TRACE(_module_rtl871x_security_c_, _drv_info_,
+				 "pattrib->iv_len =%x, pattrib->icv_len =%x\n",
+				 pattrib->iv_len,
+				 pattrib->icv_len);
+			*((u32 *)crc) = cpu_to_le32(getcrc32(payload, length));
 
-				pframe+= pxmitpriv->frag_len;
-				pframe = PTR_ALIGN(pframe, 4);
-				}
-			}
+			arcfour_init(&mycontext, rc4key, 16);
+			arcfour_encrypt(&mycontext, payload, payload, length);
+			arcfour_encrypt(&mycontext, payload + length, crc, 4);
 
-		}
-		else{
-			RT_TRACE(_module_rtl871x_security_c_, _drv_err_, ("rtw_tkip_encrypt23a: stainfo == NULL!!!\n"));
-			DBG_8723A("%s, psta == NUL\n", __func__);
-			res = _FAIL;
-		}
+		} else {
+			length = (pxmitpriv->frag_len -
+				  pattrib->hdrlen -
+				  pattrib->iv_len -
+				  pattrib->icv_len);
 
+			*((u32 *)crc) = cpu_to_le32(getcrc32(payload, length));
+			arcfour_init(&mycontext, rc4key, 16);
+			arcfour_encrypt(&mycontext, payload, payload, length);
+			arcfour_encrypt(&mycontext, payload + length, crc, 4);
+
+			pframe += pxmitpriv->frag_len;
+			pframe  = PTR_ALIGN(pframe, 4);
+		}
 	}
 
 	return res;
@@ -706,72 +710,76 @@ int rtw_tkip_decrypt23a(struct rtw_adapter *padapter,
 {
 	u16 pnl;
 	u32 pnh;
-	u8   rc4key[16];
-	u8   ttkey[16];
-	u8	crc[4];
+	u8 rc4key[16];
+	u8 ttkey[16];
+	u32 actual_crc, expected_crc;
 	struct arc4context mycontext;
-	int	length;
-	u32	prwskeylen;
-	u8	*pframe, *payload, *iv, *prwskey;
+	int length;
+	u32 prwskeylen;
+	u8 *pframe, *payload, *iv, *prwskey;
 	union pn48 dot11txpn;
-	struct	sta_info		*stainfo;
-	struct	rx_pkt_attrib *prxattrib = &precvframe->attrib;
-	struct	security_priv *psecuritypriv = &padapter->securitypriv;
+	struct sta_info *stainfo;
+	struct rx_pkt_attrib *prxattrib = &precvframe->attrib;
+	struct security_priv *psecuritypriv = &padapter->securitypriv;
 	struct sk_buff *skb = precvframe->pkt;
 	int res = _SUCCESS;
 
+	if (prxattrib->encrypt != WLAN_CIPHER_SUITE_TKIP)
+		return _FAIL;
+
 	pframe = skb->data;
 
+	stainfo = rtw_get_stainfo23a(&padapter->stapriv,
+				     &prxattrib->ta[0]);
+	if (stainfo == NULL) {
+		RT_TRACE(_module_rtl871x_security_c_, _drv_err_,
+			 "%s: stainfo == NULL!!!\n", __func__);
+		return _FAIL;
+	}
+
 	/* 4 start to decrypt recvframe */
-	if (prxattrib->encrypt == WLAN_CIPHER_SUITE_TKIP) {
+	if (is_multicast_ether_addr(prxattrib->ra)) {
+		if (psecuritypriv->binstallGrpkey == 0) {
+			res = _FAIL;
+			DBG_8723A("%s:rx bc/mc packets, but didn't install group key!!!!!!!!!!\n", __func__);
+			goto exit;
+		}
+		prwskey = psecuritypriv->dot118021XGrpKey[prxattrib->key_index].skey;
+		prwskeylen = 16;
+	} else {
+		RT_TRACE(_module_rtl871x_security_c_, _drv_err_,
+			 "%s: stainfo!= NULL!!!\n", __func__);
+		prwskey = &stainfo->dot118021x_UncstKey.skey[0];
+		prwskeylen = 16;
+	}
 
-		stainfo = rtw_get_stainfo23a(&padapter->stapriv,
-					     &prxattrib->ta[0]);
-		if (stainfo!= NULL) {
-
-			if (is_multicast_ether_addr(prxattrib->ra)) {
-				if (psecuritypriv->binstallGrpkey == 0) {
-					res = _FAIL;
-					DBG_8723A("%s:rx bc/mc packets, but didn't install group key!!!!!!!!!!\n", __func__);
-					goto exit;
-				}
-				prwskey = psecuritypriv->dot118021XGrpKey[prxattrib->key_index].skey;
-				prwskeylen = 16;
-			} else {
-			        RT_TRACE(_module_rtl871x_security_c_, _drv_err_, ("rtw_tkip_decrypt23a: stainfo!= NULL!!!\n"));
-				prwskey = &stainfo->dot118021x_UncstKey.skey[0];
-				prwskeylen = 16;
-			}
-
-			iv = pframe+prxattrib->hdrlen;
-			payload = pframe+prxattrib->iv_len+prxattrib->hdrlen;
-			length = skb->len - prxattrib->hdrlen-prxattrib->iv_len;
-
-			GET_TKIP_PN(iv, dot11txpn);
-
-			pnl = (u16)(dot11txpn.val);
-			pnh = (u32)(dot11txpn.val>>16);
-
-			phase1((u16 *)&ttkey[0], prwskey,&prxattrib->ta[0], pnh);
-			phase2(&rc4key[0], prwskey, (unsigned short *)&ttkey[0], pnl);
-
-			/* 4 decrypt payload include icv */
-			arcfour_init(&mycontext, rc4key, 16);
-			arcfour_encrypt(&mycontext, payload, payload, length);
+	iv = pframe + prxattrib->hdrlen;
+	payload = pframe + prxattrib->iv_len + prxattrib->hdrlen;
+	length = skb->len - prxattrib->hdrlen - prxattrib->iv_len;
 
-			*((u32 *)crc) = le32_to_cpu(getcrc32(payload, length-4));
+	GET_TKIP_PN(iv, dot11txpn);
 
-			if (crc[3]!= payload[length-1] || crc[2]!= payload[length-2] || crc[1]!= payload[length-3] || crc[0]!= payload[length-4])
-			{
-			    RT_TRACE(_module_rtl871x_security_c_, _drv_err_, ("rtw_wep_decrypt23a:icv error crc[3](%x)!= payload[length-1](%x) || crc[2](%x)!= payload[length-2](%x) || crc[1](%x)!= payload[length-3](%x) || crc[0](%x)!= payload[length-4](%x)\n",
-						crc[3], payload[length-1], crc[2], payload[length-2], crc[1], payload[length-3], crc[0], payload[length-4]));
-				res = _FAIL;
-			}
-		} else {
-			RT_TRACE(_module_rtl871x_security_c_, _drv_err_, ("rtw_tkip_decrypt23a: stainfo == NULL!!!\n"));
-			res = _FAIL;
-		}
+	pnl = (u16)(dot11txpn.val);
+	pnh = (u32)(dot11txpn.val>>16);
+
+	phase1((u16 *)&ttkey[0], prwskey, &prxattrib->ta[0], pnh);
+	phase2(&rc4key[0], prwskey, (unsigned short *)&ttkey[0], pnl);
+
+	/* 4 decrypt payload include icv */
+	arcfour_init(&mycontext, rc4key, 16);
+	arcfour_encrypt(&mycontext, payload, payload, length);
+
+	actual_crc = le32_to_cpu(getcrc32(payload, length - 4));
+	expected_crc = le32_to_cpu(get_unaligned_le32(&payload[length - 4]));
+
+	if (actual_crc != expected_crc) {
+		RT_TRACE(_module_rtl871x_security_c_, _drv_err_,
+			 "%s:icv CRC mismatch: "
+			 "actual: %08x, expected: %08x\n",
+			 __func__, actual_crc, expected_crc);
+		res = _FAIL;
 	}
+
 exit:
 	return res;
 }
@@ -829,7 +837,7 @@ static void xor_128(u8 *a, u8 *b, u8 *out)
 {
 	int i;
 
-	for (i = 0;i<16; i++)
+	for (i = 0; i < 16; i++)
 		out[i] = a[i] ^ b[i];
 }
 
@@ -850,8 +858,7 @@ static void next_key(u8 *key, int round)
 {
 	u8 rcon;
 	u8 sbox_key[4];
-	u8 rcon_table[12] =
-	{
+	u8 rcon_table[12] = {
 		0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80,
 		0x1b, 0x36, 0x36, 0x36
 	};
@@ -876,10 +883,8 @@ static void byte_sub(u8 *in, u8 *out)
 {
 	int i;
 
-	for (i = 0; i< 16; i++) {
+	for (i = 0; i < 16; i++)
 		out[i] = sbox(in[i]);
-	}
-
 }
 
 static void shift_row(u8 *in, u8 *out)
@@ -916,19 +921,19 @@ static void mix_column(u8 *in, u8 *out)
 	u8 temp[4];
 	u8 tempb[4];
 
-	for (i = 0 ; i<4; i++) {
+	for (i = 0; i < 4; i++) {
 		if ((in[i] & 0x80) == 0x80)
-		    add1b[i] = 0x1b;
+			add1b[i] = 0x1b;
 		else
-		    add1b[i] = 0x00;
+			add1b[i] = 0x00;
 	}
 
-	swap_halfs[0] = in[2];    /* Swap halfs */
+	swap_halfs[0] = in[2]; /* Swap halfs */
 	swap_halfs[1] = in[3];
 	swap_halfs[2] = in[0];
 	swap_halfs[3] = in[1];
 
-	rotl[0] = in[3];        /* Rotate left 8 bits */
+	rotl[0] = in[3]; /* Rotate left 8 bits */
 	rotl[1] = in[0];
 	rotl[2] = in[1];
 	rotl[3] = in[2];
@@ -938,11 +943,10 @@ static void mix_column(u8 *in, u8 *out)
 	andf7[2] = in[2] & 0x7f;
 	andf7[3] = in[3] & 0x7f;
 
-	for (i = 3; i>0; i--) { /* logical shift left 1 bit */
+	for (i = 3; i > 0; i--) { /* logical shift left 1 bit */
 		andf7[i] = andf7[i] << 1;
-		if ((andf7[i-1] & 0x80) == 0x80) {
-		    andf7[i] = (andf7[i] | 0x01);
-		}
+		if ((andf7[i - 1] & 0x80) == 0x80)
+			andf7[i] = (andf7[i] | 0x01);
 	}
 	andf7[0] = andf7[0] << 1;
 	andf7[0] = andf7[0] & 0xfe;
@@ -951,7 +955,7 @@ static void mix_column(u8 *in, u8 *out)
 
 	xor_32(in, add1bf7, rotr);
 
-	temp[0] = rotr[0];         /* Rotate right 8 bits */
+	temp[0] = rotr[0]; /* Rotate right 8 bits */
 	rotr[0] = rotr[1];
 	rotr[1] = rotr[2];
 	rotr[2] = rotr[3];
@@ -971,25 +975,26 @@ static void aes128k128d(u8 *key, u8 *data, u8 *ciphertext)
 	u8 intermediateb[16];
 	u8 round_key[16];
 
-	for (i = 0; i<16; i++) round_key[i] = key[i];
+	for (i = 0; i < 16; i++)
+		round_key[i] = key[i];
 
 	for (round = 0; round < 11; round++) {
 		if (round == 0) {
-		    xor_128(round_key, data, ciphertext);
-		    next_key(round_key, round);
+			xor_128(round_key, data, ciphertext);
+			next_key(round_key, round);
 		} else if (round == 10) {
-		    byte_sub(ciphertext, intermediatea);
-		    shift_row(intermediatea, intermediateb);
-		    xor_128(intermediateb, round_key, ciphertext);
+			byte_sub(ciphertext, intermediatea);
+			shift_row(intermediatea, intermediateb);
+			xor_128(intermediateb, round_key, ciphertext);
 		} else { /* 1 - 9 */
-		    byte_sub(ciphertext, intermediatea);
-		    shift_row(intermediatea, intermediateb);
-		    mix_column(&intermediateb[0], &intermediatea[0]);
-		    mix_column(&intermediateb[4], &intermediatea[4]);
-		    mix_column(&intermediateb[8], &intermediatea[8]);
-		    mix_column(&intermediateb[12], &intermediatea[12]);
-		    xor_128(intermediatea, round_key, ciphertext);
-		    next_key(round_key, round);
+			byte_sub(ciphertext, intermediatea);
+			shift_row(intermediatea, intermediateb);
+			mix_column(&intermediateb[0], &intermediatea[0]);
+			mix_column(&intermediateb[4], &intermediatea[4]);
+			mix_column(&intermediateb[8], &intermediatea[8]);
+			mix_column(&intermediateb[12], &intermediatea[12]);
+			xor_128(intermediatea, round_key, ciphertext);
+			next_key(round_key, round);
 		}
 	}
 
@@ -1006,9 +1011,9 @@ static void construct_mic_iv(u8 *mic_iv, int qc_exists, int a4_exists, u8 *mpdu,
 
 	mic_iv[0] = 0x59;
 	if (qc_exists && a4_exists)
-		mic_iv[1] = mpdu[30] & 0x0f;    /* QoS_TC           */
+		mic_iv[1] = mpdu[30] & 0x0f; /* QoS_TC        */
 	if (qc_exists && !a4_exists)
-		mic_iv[1] = mpdu[24] & 0x0f;   /* mute bits 7-4    */
+		mic_iv[1] = mpdu[24] & 0x0f; /* mute bits 7-4 */
 	if (!qc_exists)
 		mic_iv[1] = 0x00;
 	for (i = 2; i < 8; i++)
@@ -1028,15 +1033,15 @@ static void construct_mic_header1(u8 *mic_header1, int header_length, u8 *mpdu)
 {
 	mic_header1[0] = (u8)((header_length - 2) / 256);
 	mic_header1[1] = (u8)((header_length - 2) % 256);
-	mic_header1[2] = mpdu[0] & 0xcf;    /* Mute CF poll & CF ack bits */
-	mic_header1[3] = mpdu[1] & 0xc7;    /* Mute retry, more data and pwr mgt bits */
-	mic_header1[4] = mpdu[4];       /* A1 */
+	mic_header1[2] = mpdu[0] & 0xcf; /* Mute CF poll & CF ack bits */
+	mic_header1[3] = mpdu[1] & 0xc7; /* Mute retry, more data and pwr mgt bits */
+	mic_header1[4] = mpdu[4]; /* A1 */
 	mic_header1[5] = mpdu[5];
 	mic_header1[6] = mpdu[6];
 	mic_header1[7] = mpdu[7];
 	mic_header1[8] = mpdu[8];
 	mic_header1[9] = mpdu[9];
-	mic_header1[10] = mpdu[10];     /* A2 */
+	mic_header1[10] = mpdu[10]; /* A2 */
 	mic_header1[11] = mpdu[11];
 	mic_header1[12] = mpdu[12];
 	mic_header1[13] = mpdu[13];
@@ -1046,7 +1051,7 @@ static void construct_mic_header1(u8 *mic_header1, int header_length, u8 *mpdu)
 }
 
 /************************************************/
-	/* construct_mic_header2()                      */
+/* construct_mic_header2()                      */
 /* Builds the last MIC header block from        */
 /* header fields.                               */
 /************************************************/
@@ -1055,9 +1060,10 @@ static void construct_mic_header2(u8 *mic_header2, u8 *mpdu, int a4_exists,
 {
 	int i;
 
-	for (i = 0; i<16; i++) mic_header2[i]= 0x00;
+	for (i = 0; i < 16; i++)
+		mic_header2[i] = 0x00;
 
-	mic_header2[0] = mpdu[16];    /* A3 */
+	mic_header2[0] = mpdu[16]; /* A3 */
 	mic_header2[1] = mpdu[17];
 	mic_header2[2] = mpdu[18];
 	mic_header2[3] = mpdu[19];
@@ -1068,8 +1074,8 @@ static void construct_mic_header2(u8 *mic_header2, u8 *mpdu, int a4_exists,
 	mic_header2[7] = 0x00; /* mpdu[23]; */
 
 	if (!qc_exists && a4_exists) {
-		for (i = 0;i<6;i++) mic_header2[8+i] = mpdu[24+i];   /* A4 */
-
+		for (i = 0; i < 6; i++)
+			mic_header2[8+i] = mpdu[24+i]; /* A4 */
 	}
 
 	if (qc_exists && !a4_exists) {
@@ -1078,7 +1084,8 @@ static void construct_mic_header2(u8 *mic_header2, u8 *mpdu, int a4_exists,
 	}
 
 	if (qc_exists && a4_exists) {
-		for (i = 0;i<6;i++) mic_header2[8+i] = mpdu[24+i];   /* A4 */
+		for (i = 0; i < 6; i++)
+			mic_header2[8+i] = mpdu[24+i]; /* A4 */
 
 		mic_header2[14] = mpdu[30] & 0x0f;
 		mic_header2[15] = mpdu[31] & 0x00;
@@ -1096,19 +1103,21 @@ static void construct_ctr_preload(u8 *ctr_preload, int a4_exists, int qc_exists,
 {
 	int i = 0;
 
-	for (i = 0; i<16; i++) ctr_preload[i] = 0x00;
+	for (i = 0; i < 16; i++)
+		ctr_preload[i] = 0x00;
+
 	i = 0;
 
-	ctr_preload[0] = 0x01;                                  /* flag */
+	ctr_preload[0] = 0x01; /* flag */
 	if (qc_exists && a4_exists)
-		ctr_preload[1] = mpdu[30] & 0x0f;   /* QoC_Control */
+		ctr_preload[1] = mpdu[30] & 0x0f; /* QoC_Control */
 	if (qc_exists && !a4_exists)
 		ctr_preload[1] = mpdu[24] & 0x0f;
 
 	for (i = 2; i < 8; i++)
-		ctr_preload[i] = mpdu[i + 8];                       /* ctr_preload[2:7] = A2[0:5] = mpdu[10:15] */
+		ctr_preload[i] = mpdu[i + 8]; /* ctr_preload[2:7] = A2[0:5] = mpdu[10:15] */
 	for (i = 8; i < 14; i++)
-		ctr_preload[i] =    pn_vector[13 - i];          /* ctr_preload[8:13] = PN[5:0] */
+		ctr_preload[i] = pn_vector[13 - i]; /* ctr_preload[8:13] = PN[5:0] */
 	ctr_preload[14] =  (unsigned char) (c / 256); /* Ctr */
 	ctr_preload[15] =  (unsigned char) (c % 256);
 
@@ -1128,8 +1137,8 @@ static void bitwise_xor(u8 *ina, u8 *inb, u8 *out)
 
 static int aes_cipher(u8 *key, uint hdrlen, u8 *pframe, uint plen)
 {
-	uint	qc_exists, a4_exists, i, j, payload_remainder,
-		num_blocks, payload_index;
+	uint qc_exists, a4_exists, i, j, payload_remainder,
+	     num_blocks, payload_index;
 	u8 pn_vector[6];
 	u8 mic_iv[16];
 	u8 mic_header1[16];
@@ -1177,12 +1186,12 @@ static int aes_cipher(u8 *key, uint hdrlen, u8 *pframe, uint plen)
 	} else {
 		qc_exists = 0;
 	}
-	pn_vector[0]= pframe[hdrlen];
-	pn_vector[1]= pframe[hdrlen+1];
-	pn_vector[2]= pframe[hdrlen+4];
-	pn_vector[3]= pframe[hdrlen+5];
-	pn_vector[4]= pframe[hdrlen+6];
-	pn_vector[5]= pframe[hdrlen+7];
+	pn_vector[0] = pframe[hdrlen];
+	pn_vector[1] = pframe[hdrlen + 1];
+	pn_vector[2] = pframe[hdrlen + 4];
+	pn_vector[3] = pframe[hdrlen + 5];
+	pn_vector[4] = pframe[hdrlen + 6];
+	pn_vector[5] = pframe[hdrlen + 7];
 
 	construct_mic_iv(mic_iv, qc_exists, a4_exists, pframe, plen, pn_vector);
 
@@ -1193,7 +1202,7 @@ static int aes_cipher(u8 *key, uint hdrlen, u8 *pframe, uint plen)
 	num_blocks = plen / 16;
 
 	/* Find start of payload */
-	payload_index = (hdrlen + 8);
+	payload_index = hdrlen + 8;
 
 	/* Calculate MIC */
 	aes128k128d(key, mic_iv, aes_out);
@@ -1224,12 +1233,12 @@ static int aes_cipher(u8 *key, uint hdrlen, u8 *pframe, uint plen)
 
 	/* Insert MIC into payload */
 	for (j = 0; j < 8; j++)
-		pframe[payload_index+j] = mic[j];
+		pframe[payload_index + j] = mic[j];
 
 	payload_index = hdrlen + 8;
 	for (i = 0; i < num_blocks; i++) {
 		construct_ctr_preload(ctr_preload, a4_exists, qc_exists,
-				      pframe, pn_vector, i+1);
+				      pframe, pn_vector, i + 1);
 		aes128k128d(key, ctr_preload, aes_out);
 		bitwise_xor(aes_out, &pframe[payload_index], chain_buffer);
 		for (j = 0; j < 16; j++)
@@ -1241,15 +1250,15 @@ static int aes_cipher(u8 *key, uint hdrlen, u8 *pframe, uint plen)
 		 * encrypt it and copy the unpadded part back
 		 */
 		construct_ctr_preload(ctr_preload, a4_exists, qc_exists, pframe,
-				      pn_vector, num_blocks+1);
+				      pn_vector, num_blocks + 1);
 
 		for (j = 0; j < 16; j++)
 			padded_buffer[j] = 0x00;
 		for (j = 0; j < payload_remainder; j++)
-			padded_buffer[j] = pframe[payload_index+j];
+			padded_buffer[j] = pframe[payload_index + j];
 		aes128k128d(key, ctr_preload, aes_out);
 		bitwise_xor(aes_out, padded_buffer, chain_buffer);
-		for (j = 0; j < payload_remainder;j++)
+		for (j = 0; j < payload_remainder; j++)
 			pframe[payload_index++] = chain_buffer[j];
 	}
 
@@ -1260,11 +1269,11 @@ static int aes_cipher(u8 *key, uint hdrlen, u8 *pframe, uint plen)
 	for (j = 0; j < 16; j++)
 		padded_buffer[j] = 0x00;
 	for (j = 0; j < 8; j++)
-		padded_buffer[j] = pframe[j+hdrlen+8+plen];
+		padded_buffer[j] = pframe[j + hdrlen + 8 + plen];
 
 	aes128k128d(key, ctr_preload, aes_out);
 	bitwise_xor(aes_out, padded_buffer, chain_buffer);
-	for (j = 0; j < 8;j++)
+	for (j = 0; j < 8; j++)
 		pframe[payload_index++] = chain_buffer[j];
 
 	return _SUCCESS;
@@ -1272,11 +1281,11 @@ static int aes_cipher(u8 *key, uint hdrlen, u8 *pframe, uint plen)
 
 int rtw_aes_encrypt23a(struct rtw_adapter *padapter,
 		       struct xmit_frame *pxmitframe)
-{	/*  exclude ICV */
+{	/* exclude ICV */
 	/* Intermediate Buffers */
 	int curfragnum, length;
 	u32 prwskeylen;
-	u8 *pframe, *prwskey;	/*  *payload,*iv */
+	u8 *pframe, *prwskey;
 	u8 hw_hdr_offset = 0;
 	struct sta_info *stainfo;
 	struct pkt_attrib *pattrib = &pxmitframe->attrib;
@@ -1304,18 +1313,18 @@ int rtw_aes_encrypt23a(struct rtw_adapter *padapter,
 
 	if (!stainfo) {
 		RT_TRACE(_module_rtl871x_security_c_, _drv_err_,
-			 ("rtw_aes_encrypt23a: stainfo == NULL!!!\n"));
+			 "%s: stainfo == NULL!!!\n", __func__);
 		DBG_8723A("%s, psta == NUL\n", __func__);
 		res = _FAIL;
 		goto out;
 	}
-	if (!(stainfo->state &_FW_LINKED)) {
+	if (!(stainfo->state & _FW_LINKED)) {
 		DBG_8723A("%s, psta->state(0x%x) != _FW_LINKED\n",
 			  __func__, stainfo->state);
 		return _FAIL;
 	}
 	RT_TRACE(_module_rtl871x_security_c_, _drv_err_,
-		 ("rtw_aes_encrypt23a: stainfo!= NULL!!!\n"));
+		 "%s: stainfo!= NULL!!!\n", __func__);
 
 	if (is_multicast_ether_addr(pattrib->ra))
 		prwskey = psecuritypriv->dot118021XGrpKey[psecuritypriv->dot118021XGrpKeyid].skey;
@@ -1345,12 +1354,11 @@ out:
 	return res;
 }
 
-static int aes_decipher(u8 *key, uint	hdrlen,
-			u8 *pframe, uint plen)
+static int aes_decipher(u8 *key, uint hdrlen, u8 *pframe, uint plen)
 {
-	static u8	message[MAX_MSG_SIZE];
-	uint	qc_exists, a4_exists, i, j, payload_remainder,
-			num_blocks, payload_index;
+	static u8 message[MAX_MSG_SIZE];
+	uint qc_exists, a4_exists, i, j, payload_remainder,
+	     num_blocks, payload_index;
 	int res = _SUCCESS;
 	u8 pn_vector[6];
 	u8 mic_iv[16];
@@ -1375,16 +1383,16 @@ static int aes_decipher(u8 *key, uint	hdrlen,
 
 	/* start to decrypt the payload */
 
-	num_blocks = (plen-8) / 16; /* plen including llc, payload_length and mic) */
+	num_blocks = (plen - 8) / 16; /* plen including llc, payload_length and mic) */
 
-	payload_remainder = (plen-8) % 16;
+	payload_remainder = (plen - 8) % 16;
 
 	pn_vector[0]  = pframe[hdrlen];
-	pn_vector[1]  = pframe[hdrlen+1];
-	pn_vector[2]  = pframe[hdrlen+4];
-	pn_vector[3]  = pframe[hdrlen+5];
-	pn_vector[4]  = pframe[hdrlen+6];
-	pn_vector[5]  = pframe[hdrlen+7];
+	pn_vector[1]  = pframe[hdrlen + 1];
+	pn_vector[2]  = pframe[hdrlen + 4];
+	pn_vector[3]  = pframe[hdrlen + 5];
+	pn_vector[4]  = pframe[hdrlen + 6];
+	pn_vector[5]  = pframe[hdrlen + 7];
 
 	if ((hdrlen == sizeof(struct ieee80211_hdr_3addr) ||
 	    (hdrlen == sizeof(struct ieee80211_qos_hdr))))
@@ -1413,13 +1421,13 @@ static int aes_decipher(u8 *key, uint	hdrlen,
 		qc_exists = 0;
 	}
 
-	/*  now, decrypt pframe with hdrlen offset and plen long */
+	/* now, decrypt pframe with hdrlen offset and plen long */
 
 	payload_index = hdrlen + 8; /*  8 is for extiv */
 
 	for (i = 0; i < num_blocks; i++) {
 		construct_ctr_preload(ctr_preload, a4_exists, qc_exists,
-				      pframe, pn_vector, i+1);
+				      pframe, pn_vector, i + 1);
 
 		aes128k128d(key, ctr_preload, aes_out);
 		bitwise_xor(aes_out, &pframe[payload_index], chain_buffer);
@@ -1433,12 +1441,12 @@ static int aes_decipher(u8 *key, uint	hdrlen,
 		 * encrypt it and copy the unpadded part back
 		 */
 		construct_ctr_preload(ctr_preload, a4_exists, qc_exists, pframe,
-				      pn_vector, num_blocks+1);
+				      pn_vector, num_blocks + 1);
 
 		for (j = 0; j < 16; j++)
 			padded_buffer[j] = 0x00;
 		for (j = 0; j < payload_remainder; j++)
-			padded_buffer[j] = pframe[payload_index+j];
+			padded_buffer[j] = pframe[payload_index + j];
 		aes128k128d(key, ctr_preload, aes_out);
 		bitwise_xor(aes_out, padded_buffer, chain_buffer);
 		for (j = 0; j < payload_remainder; j++)
@@ -1446,27 +1454,27 @@ static int aes_decipher(u8 *key, uint	hdrlen,
 	}
 
 	/* start to calculate the mic */
-	if ((hdrlen +plen+8) <= MAX_MSG_SIZE)
-		memcpy(message, pframe, (hdrlen+plen+8)); /* 8 is for ext iv len */
+	if ((hdrlen + plen + 8) <= MAX_MSG_SIZE)
+		memcpy(message, pframe, (hdrlen + plen + 8)); /* 8 is for ext iv len */
 
 	pn_vector[0] = pframe[hdrlen];
-	pn_vector[1] = pframe[hdrlen+1];
-	pn_vector[2] = pframe[hdrlen+4];
-	pn_vector[3] = pframe[hdrlen+5];
-	pn_vector[4] = pframe[hdrlen+6];
-	pn_vector[5] = pframe[hdrlen+7];
+	pn_vector[1] = pframe[hdrlen + 1];
+	pn_vector[2] = pframe[hdrlen + 4];
+	pn_vector[3] = pframe[hdrlen + 5];
+	pn_vector[4] = pframe[hdrlen + 6];
+	pn_vector[5] = pframe[hdrlen + 7];
 
 	construct_mic_iv(mic_iv, qc_exists, a4_exists, message,
-			 plen-8, pn_vector);
+			 plen - 8, pn_vector);
 
 	construct_mic_header1(mic_header1, hdrlen, message);
 	construct_mic_header2(mic_header2, message, a4_exists, qc_exists);
 
-	payload_remainder = (plen-8) % 16;
-	num_blocks = (plen-8) / 16;
+	payload_remainder = (plen - 8) % 16;
+	num_blocks = (plen - 8) / 16;
 
 	/* Find start of payload */
-	payload_index = (hdrlen + 8);
+	payload_index = hdrlen + 8;
 
 	/* Calculate MIC */
 	aes128k128d(key, mic_iv, aes_out);
@@ -1487,7 +1495,7 @@ static int aes_decipher(u8 *key, uint	hdrlen,
 		for (j = 0; j < 16; j++)
 			padded_buffer[j] = 0x00;
 		for (j = 0; j < payload_remainder; j++)
-		    padded_buffer[j] = message[payload_index++];
+			padded_buffer[j] = message[payload_index++];
 		bitwise_xor(aes_out, padded_buffer, chain_buffer);
 		aes128k128d(key, chain_buffer, aes_out);
 	}
@@ -1497,12 +1505,12 @@ static int aes_decipher(u8 *key, uint	hdrlen,
 
 	/* Insert MIC into payload */
 	for (j = 0; j < 8; j++)
-		message[payload_index+j] = mic[j];
+		message[payload_index + j] = mic[j];
 
 	payload_index = hdrlen + 8;
-	for (i = 0; i< num_blocks; i++) {
+	for (i = 0; i < num_blocks; i++) {
 		construct_ctr_preload(ctr_preload, a4_exists, qc_exists,
-				      message, pn_vector, i+1);
+				      message, pn_vector, i + 1);
 		aes128k128d(key, ctr_preload, aes_out);
 		bitwise_xor(aes_out, &message[payload_index], chain_buffer);
 		for (j = 0; j < 16; j++)
@@ -1514,12 +1522,12 @@ static int aes_decipher(u8 *key, uint	hdrlen,
 		 * encrypt it and copy the unpadded part back
 		 */
 		construct_ctr_preload(ctr_preload, a4_exists, qc_exists,
-				      message, pn_vector, num_blocks+1);
+				      message, pn_vector, num_blocks + 1);
 
 		for (j = 0; j < 16; j++)
-			 padded_buffer[j] = 0x00;
+			padded_buffer[j] = 0x00;
 		for (j = 0; j < payload_remainder; j++)
-			padded_buffer[j] = message[payload_index+j];
+			padded_buffer[j] = message[payload_index + j];
 		aes128k128d(key, ctr_preload, aes_out);
 		bitwise_xor(aes_out, padded_buffer, chain_buffer);
 		for (j = 0; j < payload_remainder; j++)
@@ -1533,7 +1541,7 @@ static int aes_decipher(u8 *key, uint	hdrlen,
 	for (j = 0; j < 16; j++)
 		padded_buffer[j] = 0x00;
 	for (j = 0; j < 8; j++)
-		padded_buffer[j] = message[j+hdrlen+8+plen-8];
+		padded_buffer[j] = message[j + hdrlen + 8 + plen - 8];
 
 	aes128k128d(key, ctr_preload, aes_out);
 	bitwise_xor(aes_out, padded_buffer, chain_buffer);
@@ -1542,12 +1550,16 @@ static int aes_decipher(u8 *key, uint	hdrlen,
 
 	/* compare the mic */
 	for (i = 0; i < 8; i++) {
-		if (pframe[hdrlen+8+plen-8+i] != message[hdrlen+8+plen-8+i]) {
+		if (pframe[hdrlen + 8 + plen - 8 + i] != message[hdrlen + 8 + plen - 8 + i]) {
 			RT_TRACE(_module_rtl871x_security_c_, _drv_err_,
-				 ("aes_decipher:mic check error mic[%d]: pframe(%x) != message(%x)\n",
-				 i, pframe[hdrlen+8+plen-8+i], message[hdrlen+8+plen-8+i]));
-			DBG_8723A("aes_decipher:mic check error mic[%d]: pframe(%x) != message(%x)\n",
-				  i, pframe[hdrlen+8+plen-8+i], message[hdrlen+8+plen-8+i]);
+				 "%s:mic check error mic[%d]: pframe(%x) != message(%x)\n",
+				 __func__, i,
+				 pframe[hdrlen + 8 + plen - 8 + i],
+				 message[hdrlen + 8 + plen - 8 + i]);
+			DBG_8723A("%s:mic check error mic[%d]: pframe(%x) != message(%x)\n",
+				  __func__, i,
+				  pframe[hdrlen + 8 + plen - 8 + i],
+				  message[hdrlen + 8 + plen - 8 + i]);
 			res = _FAIL;
 		}
 	}
@@ -1562,7 +1574,7 @@ int rtw_aes_decrypt23a(struct rtw_adapter *padapter,
 	struct security_priv *psecuritypriv = &padapter->securitypriv;
 	struct sk_buff *skb = precvframe->pkt;
 	int length;
-	u8 *pframe, *prwskey;	/*  *payload,*iv */
+	u8 *pframe, *prwskey;
 	int res = _SUCCESS;
 
 	pframe = skb->data;
@@ -1573,17 +1585,18 @@ int rtw_aes_decrypt23a(struct rtw_adapter *padapter,
 	stainfo = rtw_get_stainfo23a(&padapter->stapriv, &prxattrib->ta[0]);
 	if (!stainfo) {
 		RT_TRACE(_module_rtl871x_security_c_, _drv_err_,
-			 ("rtw_aes_encrypt23a: stainfo == NULL!!!\n"));
+			 "%s: stainfo == NULL!!!\n", __func__);
 		res = _FAIL;
 		goto exit;
 	}
 
 	RT_TRACE(_module_rtl871x_security_c_, _drv_err_,
-		 ("rtw_aes_decrypt23a: stainfo!= NULL!!!\n"));
+		 "%s: stainfo!= NULL!!!\n", __func__);
 
 	if (is_multicast_ether_addr(prxattrib->ra)) {
-		/* in concurrent we should use sw decrypt in group key,
-		   so we remove this message */
+		/* in concurrent we should use sw decrypt in
+		 * group key, so we remove this message
+		 */
 		if (!psecuritypriv->binstallGrpkey) {
 			res = _FAIL;
 			DBG_8723A("%s:rx bc/mc packets, but didn't install "
@@ -1613,9 +1626,10 @@ void rtw_use_tkipkey_handler23a(void *FunctionContext)
 {
 	struct rtw_adapter *padapter = (struct rtw_adapter *)FunctionContext;
 
-	RT_TRACE(_module_rtl871x_security_c_, _drv_err_, ("^^^rtw_use_tkipkey_handler23a ^^^\n"));
+	RT_TRACE(_module_rtl871x_security_c_, _drv_err_,
+		 "^^^%s ^^^\n", __func__);
 	padapter->securitypriv.busetkipkey = 1;
 	RT_TRACE(_module_rtl871x_security_c_, _drv_err_,
-		 ("^^^rtw_use_tkipkey_handler23a padapter->securitypriv.busetkipkey =%d^^^\n",
-		 padapter->securitypriv.busetkipkey));
+		 "^^^%s padapter->securitypriv.busetkipkey =%d^^^\n",
+		 __func__, padapter->securitypriv.busetkipkey);
 }
diff --git a/drivers/staging/rtl8723au/core/rtw_sta_mgt.c b/drivers/staging/rtl8723au/core/rtw_sta_mgt.c
index d17998d..b06bff7 100644
--- a/drivers/staging/rtl8723au/core/rtw_sta_mgt.c
+++ b/drivers/staging/rtl8723au/core/rtw_sta_mgt.c
@@ -136,10 +136,10 @@ rtw_alloc_stainfo23a(struct sta_priv *pstapriv, const u8 *hwaddr, gfp_t gfp)
 	index = wifi_mac_hash(hwaddr);
 
 	RT_TRACE(_module_rtl871x_sta_mgt_c_, _drv_info_,
-		 ("rtw_alloc_stainfo23a: index  = %x", index));
+		 "rtw_alloc_stainfo23a: index  = %x\n", index);
 	if (index >= NUM_STA) {
 		RT_TRACE(_module_rtl871x_sta_mgt_c_, _drv_err_,
-			 ("ERROR => rtw_alloc_stainfo23a: index >= NUM_STA"));
+			 "ERROR => rtw_alloc_stainfo23a: index >= NUM_STA\n");
 		psta = NULL;
 		goto exit;
 	}
@@ -160,8 +160,8 @@ rtw_alloc_stainfo23a(struct sta_priv *pstapriv, const u8 *hwaddr, gfp_t gfp)
 			&wRxSeqInitialValue, 2);
 
 	RT_TRACE(_module_rtl871x_sta_mgt_c_, _drv_info_,
-		 ("alloc number_%d stainfo  with hwaddr = %pM\n",
-		 pstapriv->asoc_sta_count, hwaddr));
+		 "alloc number_%d stainfo  with hwaddr = %pM\n",
+		 pstapriv->asoc_sta_count, hwaddr);
 
 	init_addba_retry_timer23a(psta);
 
@@ -249,10 +249,8 @@ int rtw_free_stainfo23a(struct rtw_adapter *padapter, struct sta_info *psta)
 
 	list_del_init(&psta->hash_list);
 	RT_TRACE(_module_rtl871x_sta_mgt_c_, _drv_err_,
-		("\n free number_%d stainfo  with hwaddr = 0x%.2x 0x%.2x 0x%.2x 0x%.2x 0x%.2x 0x%.2x\n",
-			pstapriv->asoc_sta_count, psta->hwaddr[0],
-			psta->hwaddr[1], psta->hwaddr[2], psta->hwaddr[3],
-			psta->hwaddr[4], psta->hwaddr[5]));
+		 "free number_%d stainfo  with hwaddr = %pM\n",
+		 pstapriv->asoc_sta_count, psta->hwaddr);
 	pstapriv->asoc_sta_count--;
 
 	/*  re-init sta_info; 20061114  will be init in alloc_stainfo */
@@ -397,7 +395,7 @@ int rtw_init_bcmc_stainfo23a(struct rtw_adapter *padapter)
 	if (psta == NULL) {
 		res = _FAIL;
 		RT_TRACE(_module_rtl871x_sta_mgt_c_, _drv_err_,
-			 ("rtw_alloc_stainfo23a fail"));
+			 "rtw_alloc_stainfo23a fail\n");
 		return res;
 	}
 	/*  default broadcast & multicast use macid 1 */
diff --git a/drivers/staging/rtl8723au/core/rtw_wlan_util.c b/drivers/staging/rtl8723au/core/rtw_wlan_util.c
index 69d9e0f..5280338 100644
--- a/drivers/staging/rtl8723au/core/rtw_wlan_util.c
+++ b/drivers/staging/rtl8723au/core/rtw_wlan_util.c
@@ -876,9 +876,9 @@ int rtw_check_bcn_info23a(struct rtw_adapter *Adapter,
 	}
 
 	if (!ether_addr_equal(cur_network->network.MacAddress, mgmt->bssid)) {
-		DBG_8723A("%s: linked but recv other bssid bcn"
-			  MAC_FMT MAC_FMT "\n", __func__, MAC_ARG(mgmt->bssid),
-			  MAC_ARG(cur_network->network.MacAddress));
+		DBG_8723A("%s: linked but recv other bssid bcn %pM %pM\n",
+			  __func__, mgmt->bssid,
+			  cur_network->network.MacAddress);
 		return _FAIL;
 	}
 
@@ -926,10 +926,9 @@ int rtw_check_bcn_info23a(struct rtw_adapter *Adapter,
 	}
 
 	RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_,
-		 ("%s bssid.Ssid.Ssid:%s bssid.Ssid.SsidLength:%d "
-		  "cur_network->network.Ssid.Ssid:%s len:%d\n", __func__,
-		  ssid, ssid_len, cur_network->network.Ssid.ssid,
-		  cur_network->network.Ssid.ssid_len));
+		 "%s bssid.Ssid.Ssid:%s bssid.Ssid.SsidLength:%d cur_network->network.Ssid.Ssid:%s len:%d\n",
+		 __func__, ssid, ssid_len, cur_network->network.Ssid.ssid,
+		 cur_network->network.Ssid.ssid_len);
 
 	if (ssid_len != cur_network->network.Ssid.ssid_len || ssid_len > 32 ||
 	    (ssid_len &&
@@ -947,8 +946,8 @@ int rtw_check_bcn_info23a(struct rtw_adapter *Adapter,
 		privacy = 0;
 
 	RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_,
-		 ("%s(): cur_network->network.Privacy is %d, bssid.Privacy "
-		  "is %d\n", __func__, cur_network->network.Privacy, privacy));
+		 "%s(): cur_network->network.Privacy is %d, bssid.Privacy is %d\n",
+		 __func__, cur_network->network.Privacy, privacy);
 	if (cur_network->network.Privacy != privacy) {
 		DBG_8723A("%s(), privacy is not match return FAIL\n", __func__);
 		goto _mismatch;
@@ -962,10 +961,9 @@ int rtw_check_bcn_info23a(struct rtw_adapter *Adapter,
 						 &pairwise_cipher, &is_8021x);
 			if (r == _SUCCESS)
 				RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_,
-					 ("%s pnetwork->pairwise_cipher: %d, "
-					  "pnetwork->group_cipher: %d, is_802x "
-					  ": %d\n", __func__, pairwise_cipher,
-					  group_cipher, is_8021x));
+					 "%s pnetwork->pairwise_cipher: %d, pnetwork->group_cipher: %d, is_802x : %d\n",
+					 __func__, pairwise_cipher,
+					 group_cipher, is_8021x);
 			}
 	} else {
 		p = cfg80211_find_vendor_ie(WLAN_OUI_MICROSOFT,
@@ -977,10 +975,9 @@ int rtw_check_bcn_info23a(struct rtw_adapter *Adapter,
 						&pairwise_cipher, &is_8021x);
 			if (r == _SUCCESS)
 				RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_,
-					 ("%s pnetwork->pairwise_cipher: %d, "
-					  "group_cipher is %d, is_8021x is "
-					  "%d\n", __func__, pairwise_cipher,
-					  group_cipher, is_8021x));
+					 "%s pnetwork->pairwise_cipher: %d, group_cipher is %d, is_8021x is %d\n",
+					 __func__, pairwise_cipher,
+					 group_cipher, is_8021x);
 		} else {
 			if (privacy)
 				crypto = ENCRYP_PROTOCOL_WEP;
@@ -996,8 +993,8 @@ int rtw_check_bcn_info23a(struct rtw_adapter *Adapter,
 
 	if (crypto == ENCRYP_PROTOCOL_WPA || crypto == ENCRYP_PROTOCOL_WPA2) {
 		RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
-			 ("%s cur_network->group_cipher is %d: %d\n", __func__,
-			  cur_network->BcnInfo.group_cipher, group_cipher));
+			 "%s cur_network->group_cipher is %d: %d\n", __func__,
+			 cur_network->BcnInfo.group_cipher, group_cipher);
 		if (pairwise_cipher != cur_network->BcnInfo.pairwise_cipher ||
 		    group_cipher != cur_network->BcnInfo.group_cipher) {
 			DBG_8723A("%s pairwise_cipher(%x:%x) or group_cipher "
diff --git a/drivers/staging/rtl8723au/core/rtw_xmit.c b/drivers/staging/rtl8723au/core/rtw_xmit.c
index 1c82dff..a4b6bb6 100644
--- a/drivers/staging/rtl8723au/core/rtw_xmit.c
+++ b/drivers/staging/rtl8723au/core/rtw_xmit.c
@@ -463,9 +463,7 @@ static int update_attrib(struct rtw_adapter *padapter,
 					/*  67 : UDP BOOTP server */
 					RT_TRACE(_module_rtl871x_xmit_c_,
 						 _drv_err_,
-						 ("======================"
-						  "update_attrib: get DHCP "
-						  "Packet\n"));
+						 "======================update_attrib: get DHCP Packet\n");
 					pattrib->dhcp_pkt = 1;
 				}
 			}
@@ -493,8 +491,8 @@ static int update_attrib(struct rtw_adapter *padapter,
 		psta = rtw_get_stainfo23a(pstapriv, pattrib->ra);
 		if (psta == NULL) { /*  if we cannot get psta => drrp the pkt */
 			RT_TRACE(_module_rtl871x_xmit_c_, _drv_alert_,
-				 ("\nupdate_attrib => get sta_info fail, ra:"
-				  MAC_FMT"\n", MAC_ARG(pattrib->ra)));
+				 "update_attrib => get sta_info fail, ra:%pM\n",
+				 pattrib->ra);
 			res = _FAIL;
 			goto exit;
 		} else if (check_fwstate(pmlmepriv, WIFI_AP_STATE) &&
@@ -511,8 +509,8 @@ static int update_attrib(struct rtw_adapter *padapter,
 	} else {
 		/*  if we cannot get psta => drop the pkt */
 		RT_TRACE(_module_rtl871x_xmit_c_, _drv_alert_,
-			 ("\nupdate_attrib => get sta_info fail, ra:" MAC_FMT
-			  "\n", MAC_ARG(pattrib->ra)));
+			 "update_attrib => get sta_info fail, ra:%pM\n",
+			 pattrib->ra);
 		res = _FAIL;
 		goto exit;
 	}
@@ -544,16 +542,15 @@ static int update_attrib(struct rtw_adapter *padapter,
 
 	if (psta->ieee8021x_blocked == true) {
 		RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_,
-			 ("\n psta->ieee8021x_blocked == true\n"));
+			 "psta->ieee8021x_blocked == true\n");
 
 		pattrib->encrypt = 0;
 
 		if ((pattrib->ether_type != ETH_P_PAE) &&
 		    !check_fwstate(pmlmepriv, WIFI_MP_STATE)) {
 			RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_,
-				 ("\npsta->ieee8021x_blocked == true,  "
-				  "pattrib->ether_type(%.4x) != 0x888e\n",
-				  pattrib->ether_type));
+				 "psta->ieee8021x_blocked == true,  pattrib->ether_type(%.4x) != 0x888e\n",
+				 pattrib->ether_type);
 			res = _FAIL;
 			goto exit;
 		}
@@ -594,9 +591,8 @@ static int update_attrib(struct rtw_adapter *padapter,
 
 		if (!padapter->securitypriv.busetkipkey) {
 			RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_,
-				 ("\npadapter->securitypriv.busetkip"
-				  "key(%d) == false drop packet\n",
-				  padapter->securitypriv.busetkipkey));
+				 "padapter->securitypriv.busetkipkey(%d) == false drop packet\n",
+				 padapter->securitypriv.busetkipkey);
 			res = _FAIL;
 			goto exit;
 		}
@@ -604,8 +600,8 @@ static int update_attrib(struct rtw_adapter *padapter,
 		break;
 	case WLAN_CIPHER_SUITE_CCMP:
 		RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_,
-			 ("pattrib->encrypt =%d (WLAN_CIPHER_SUITE_CCMP)\n",
-			  pattrib->encrypt));
+			 "pattrib->encrypt =%d (WLAN_CIPHER_SUITE_CCMP)\n",
+			 pattrib->encrypt);
 		pattrib->iv_len = IEEE80211_CCMP_HDR_LEN;
 		pattrib->icv_len = IEEE80211_CCMP_MIC_LEN;
 		break;
@@ -617,17 +613,17 @@ static int update_attrib(struct rtw_adapter *padapter,
 	}
 
 	RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_,
-		 ("update_attrib: encrypt =%d\n", pattrib->encrypt));
+		 "update_attrib: encrypt =%d\n", pattrib->encrypt);
 
 	if (pattrib->encrypt && !psecuritypriv->hw_decrypted) {
 		pattrib->bswenc = true;
 		RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_,
-			 ("update_attrib: encrypt =%d bswenc = true\n",
-			  pattrib->encrypt));
+			 "update_attrib: encrypt =%d bswenc = true\n",
+			 pattrib->encrypt);
 	} else {
 		pattrib->bswenc = false;
 		RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_,
-			 ("update_attrib: bswenc = false\n"));
+			 "update_attrib: bswenc = false\n");
 	}
 	update_attrib_phy_info(pattrib, psta);
 
@@ -726,20 +722,18 @@ static int xmitframe_addmic(struct rtw_adapter *padapter,
 			     curfragnum++) {
 				payload = PTR_ALIGN(payload, 4);
 				RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_,
-					 ("=== curfragnum =%d, pframe = 0x%.2x, "
-					  "0x%.2x, 0x%.2x, 0x%.2x, 0x%.2x, 0x"
-					  "%.2x, 0x%.2x, 0x%.2x,!!!\n",
-					  curfragnum, *payload, *(payload + 1),
-					  *(payload + 2), *(payload + 3),
-					  *(payload + 4), *(payload + 5),
-					  *(payload + 6), *(payload + 7)));
+					 "=== curfragnum =%d, pframe = 0x%.2x, 0x%.2x, 0x%.2x, 0x%.2x, 0x%.2x, 0x%.2x, 0x%.2x, 0x%.2x,!!!\n",
+					 curfragnum, *payload, *(payload + 1),
+					 *(payload + 2), *(payload + 3),
+					 *(payload + 4), *(payload + 5),
+					 *(payload + 6), *(payload + 7));
 
 				payload = payload + pattrib->hdrlen +
 					pattrib->iv_len;
 				RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_,
-					 ("curfragnum =%d pattrib->hdrlen =%d "
-					  "pattrib->iv_len =%d", curfragnum,
-					  pattrib->hdrlen, pattrib->iv_len));
+					 "curfragnum =%d pattrib->hdrlen =%d pattrib->iv_len =%d\n",
+					 curfragnum,
+					 pattrib->hdrlen, pattrib->iv_len);
 				if ((curfragnum + 1) == pattrib->nr_frags) {
 					length = pattrib->last_txcmdsz -
 						pattrib->hdrlen -
@@ -761,25 +755,21 @@ static int xmitframe_addmic(struct rtw_adapter *padapter,
 						pattrib->icv_len;
 					RT_TRACE(_module_rtl871x_xmit_c_,
 						 _drv_err_,
-						 ("curfragnum =%d length =%d "
-						  "pattrib->icv_len =%d",
-						  curfragnum, length,
-						  pattrib->icv_len));
+						 "curfragnum =%d length =%d pattrib->icv_len =%d\n",
+						 curfragnum, length,
+						 pattrib->icv_len);
 				}
 			}
 			rtw_secgetmic23a(&micdata, &mic[0]);
 			RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_,
-				 ("xmitframe_addmic: before add mic code!!\n"));
+				 "xmitframe_addmic: before add mic code!!\n");
 			RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_,
-				 ("xmitframe_addmic: pattrib->last_txcmdsz ="
-				  "%d!!!\n", pattrib->last_txcmdsz));
+				 "xmitframe_addmic: pattrib->last_txcmdsz =%d!!!\n",
+				 pattrib->last_txcmdsz);
 			RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_,
-				 ("xmitframe_addmic: mic[0]= 0x%.2x , mic[1]="
-				  "0x%.2x , mic[2]= 0x%.2x , mic[3]= 0x%.2x\n"
-				  "mic[4]= 0x%.2x , mic[5]= 0x%.2x , mic[6]= 0x%.2x "
-				  ", mic[7]= 0x%.2x !!!!\n", mic[0], mic[1],
-				  mic[2], mic[3], mic[4], mic[5], mic[6],
-				  mic[7]));
+				 "xmitframe_addmic: mic[0]= 0x%.2x , mic[1]=0x%.2x , mic[2]= 0x%.2x , mic[3]= 0x%.2x\nmic[4]= 0x%.2x , mic[5]= 0x%.2x , mic[6]= 0x%.2x , mic[7]= 0x%.2x !!!!\n",
+				 mic[0], mic[1], mic[2], mic[3],
+				 mic[4], mic[5], mic[6], mic[7]);
 			/* add mic code  and add the mic code length
 			   in last_txcmdsz */
 
@@ -787,25 +777,24 @@ static int xmitframe_addmic(struct rtw_adapter *padapter,
 			pattrib->last_txcmdsz += 8;
 
 			RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_,
-				 ("\n ======== last pkt ========\n"));
+				 "======== last pkt ========\n");
 			payload = payload - pattrib->last_txcmdsz + 8;
 			for (curfragnum = 0; curfragnum < pattrib->last_txcmdsz;
-			     curfragnum = curfragnum + 8)
+			     curfragnum = curfragnum + 8) {
 				RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_,
-					 (" %.2x,  %.2x,  %.2x,  %.2x,  %.2x, "
-					  " %.2x,  %.2x,  %.2x ",
-					  *(payload + curfragnum),
-					  *(payload + curfragnum + 1),
-					  *(payload + curfragnum + 2),
-					  *(payload + curfragnum + 3),
-					  *(payload + curfragnum + 4),
-					  *(payload + curfragnum + 5),
-					  *(payload + curfragnum + 6),
-					  *(payload + curfragnum + 7)));
-			} else {
-				RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_,
-					 ("xmitframe_addmic: rtw_get_stainfo23a =="
-					  "NULL!!!\n"));
+					 "%.2x,  %.2x,  %.2x,  %.2x,  %.2x,  %.2x,  %.2x,  %.2x\n",
+					 *(payload + curfragnum),
+					 *(payload + curfragnum + 1),
+					 *(payload + curfragnum + 2),
+					 *(payload + curfragnum + 3),
+					 *(payload + curfragnum + 4),
+					 *(payload + curfragnum + 5),
+					 *(payload + curfragnum + 6),
+					 *(payload + curfragnum + 7));
+			}
+		} else {
+			RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_,
+				 "xmitframe_addmic: rtw_get_stainfo23a ==NULL!!!\n");
 		}
 	}
 
@@ -821,7 +810,7 @@ static int xmitframe_swencrypt(struct rtw_adapter *padapter,
 	if (pattrib->bswenc) {
 		/* DBG_8723A("start xmitframe_swencrypt\n"); */
 		RT_TRACE(_module_rtl871x_xmit_c_, _drv_alert_,
-			 ("### xmitframe_swencrypt\n"));
+			 "### xmitframe_swencrypt\n");
 		switch (pattrib->encrypt) {
 		case WLAN_CIPHER_SUITE_WEP40:
 		case WLAN_CIPHER_SUITE_WEP104:
@@ -839,7 +828,7 @@ static int xmitframe_swencrypt(struct rtw_adapter *padapter,
 
 	} else {
 		RT_TRACE(_module_rtl871x_xmit_c_, _drv_notice_,
-			 ("### xmitframe_hwencrypt\n"));
+			 "### xmitframe_hwencrypt\n");
 	}
 
 	return _SUCCESS;
@@ -916,7 +905,9 @@ static int rtw_make_wlanhdr(struct rtw_adapter *padapter, u8 *hdr,
 				qos_option = true;
 		}
 		else {
-			RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("fw_state:%x is not allowed to xmit frame\n", get_fwstate(pmlmepriv)));
+			RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_,
+				 "fw_state:%x is not allowed to xmit frame\n",
+				 get_fwstate(pmlmepriv));
 			res = _FAIL;
 			goto exit;
 		}
@@ -1117,7 +1108,7 @@ int rtw_xmitframe_coalesce23a(struct rtw_adapter *padapter, struct sk_buff *skb,
 
 	if (rtw_make_wlanhdr(padapter, mem_start, pattrib) == _FAIL) {
 		RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_,
-			 ("%s: rtw_make_wlanhdr fail; drop pkt\n", __func__));
+			 "%s: rtw_make_wlanhdr fail; drop pkt\n", __func__);
 		res = _FAIL;
 		goto exit;
 	}
@@ -1172,11 +1163,10 @@ int rtw_xmitframe_coalesce23a(struct rtw_adapter *padapter, struct sk_buff *skb,
 			memcpy(pframe, pattrib->iv, pattrib->iv_len);
 
 			RT_TRACE(_module_rtl871x_xmit_c_, _drv_notice_,
-				 ("rtw_xmiaframe_coalesce23a: keyid =%d pattrib"
-				  "->iv[3]=%.2x pframe =%.2x %.2x %.2x %.2x\n",
-				  padapter->securitypriv.dot11PrivacyKeyIndex,
-				  pattrib->iv[3], *pframe, *(pframe+1),
-				  *(pframe+2), *(pframe+3)));
+				 "rtw_xmiaframe_coalesce23a: keyid =%d pattrib->iv[3]=%.2x pframe =%.2x %.2x %.2x %.2x\n",
+				 padapter->securitypriv.dot11PrivacyKeyIndex,
+				 pattrib->iv[3], *pframe, *(pframe+1),
+				 *(pframe+2), *(pframe+3));
 			pframe += pattrib->iv_len;
 			mpdu_len -= pattrib->iv_len;
 		}
@@ -1223,8 +1213,8 @@ int rtw_xmitframe_coalesce23a(struct rtw_adapter *padapter, struct sk_buff *skb,
 			break;
 		} else {
 			RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_,
-				 ("%s: There're still something in packet!\n",
-				  __func__));
+				 "%s: There're still something in packet!\n",
+				 __func__);
 		}
 		hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_MOREFRAGS);
 
@@ -1234,7 +1224,7 @@ int rtw_xmitframe_coalesce23a(struct rtw_adapter *padapter, struct sk_buff *skb,
 
 	if (xmitframe_addmic(padapter, pxmitframe) == _FAIL) {
 		RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_,
-			 ("xmitframe_addmic(padapter, pxmitframe) == _FAIL\n"));
+			 "xmitframe_addmic(padapter, pxmitframe) == _FAIL\n");
 		DBG_8723A("xmitframe_addmic(padapter, pxmitframe) == _FAIL\n");
 		res = _FAIL;
 		goto exit;
@@ -1462,8 +1452,8 @@ static struct xmit_frame *rtw_alloc_xmitframe(struct xmit_priv *pxmitpriv)
 
 	if (list_empty(&pfree_xmit_queue->queue)) {
 		RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_,
-			 ("rtw_alloc_xmitframe:%d\n",
-			  pxmitpriv->free_xmitframe_cnt));
+			 "rtw_alloc_xmitframe:%d\n",
+			 pxmitpriv->free_xmitframe_cnt);
 		pxframe =  NULL;
 	} else {
 		phead = get_list_head(pfree_xmit_queue);
@@ -1475,8 +1465,8 @@ static struct xmit_frame *rtw_alloc_xmitframe(struct xmit_priv *pxmitpriv)
 		list_del_init(&pxframe->list);
 		pxmitpriv->free_xmitframe_cnt--;
 		RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_,
-			 ("rtw_alloc_xmitframe():free_xmitframe_cnt =%d\n",
-			  pxmitpriv->free_xmitframe_cnt));
+			 "rtw_alloc_xmitframe():free_xmitframe_cnt =%d\n",
+			 pxmitpriv->free_xmitframe_cnt);
 	}
 
 	spin_unlock_bh(&pfree_xmit_queue->lock);
@@ -1495,7 +1485,9 @@ struct xmit_frame *rtw_alloc_xmitframe23a_ext(struct xmit_priv *pxmitpriv)
 	spin_lock_bh(&queue->lock);
 
 	if (list_empty(&queue->queue)) {
-		RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_, ("rtw_alloc_xmitframe23a_ext:%d\n", pxmitpriv->free_xframe_ext_cnt));
+		RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_,
+			 "rtw_alloc_xmitframe23a_ext:%d\n",
+			 pxmitpriv->free_xframe_ext_cnt);
 		pxframe =  NULL;
 	} else {
 		phead = get_list_head(queue);
@@ -1504,7 +1496,9 @@ struct xmit_frame *rtw_alloc_xmitframe23a_ext(struct xmit_priv *pxmitpriv)
 
 		list_del_init(&pxframe->list);
 		pxmitpriv->free_xframe_ext_cnt--;
-		RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_, ("rtw_alloc_xmitframe23a_ext():free_xmitframe_cnt =%d\n", pxmitpriv->free_xframe_ext_cnt));
+		RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_,
+			 "rtw_alloc_xmitframe23a_ext():free_xmitframe_cnt =%d\n",
+			 pxmitpriv->free_xframe_ext_cnt);
 	}
 
 	spin_unlock_bh(&queue->lock);
@@ -1521,7 +1515,8 @@ s32 rtw_free_xmitframe23a(struct xmit_priv *pxmitpriv, struct xmit_frame *pxmitf
 	struct sk_buff *pndis_pkt = NULL;
 
 	if (pxmitframe == NULL) {
-		RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("====== rtw_free_xmitframe23a():pxmitframe == NULL!!!!!!!!!!\n"));
+		RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_,
+			 "====== rtw_free_xmitframe23a():pxmitframe == NULL!!!!!!!!!!\n");
 		goto exit;
 	}
 
@@ -1543,10 +1538,14 @@ s32 rtw_free_xmitframe23a(struct xmit_priv *pxmitpriv, struct xmit_frame *pxmitf
 	list_add_tail(&pxmitframe->list, get_list_head(queue));
 	if (pxmitframe->ext_tag == 0) {
 		pxmitpriv->free_xmitframe_cnt++;
-		RT_TRACE(_module_rtl871x_xmit_c_, _drv_debug_, ("rtw_free_xmitframe23a():free_xmitframe_cnt =%d\n", pxmitpriv->free_xmitframe_cnt));
+		RT_TRACE(_module_rtl871x_xmit_c_, _drv_debug_,
+			 "rtw_free_xmitframe23a():free_xmitframe_cnt =%d\n",
+			 pxmitpriv->free_xmitframe_cnt);
 	} else if (pxmitframe->ext_tag == 1) {
 		pxmitpriv->free_xframe_ext_cnt++;
-		RT_TRACE(_module_rtl871x_xmit_c_, _drv_debug_, ("rtw_free_xmitframe23a():free_xframe_ext_cnt =%d\n", pxmitpriv->free_xframe_ext_cnt));
+		RT_TRACE(_module_rtl871x_xmit_c_, _drv_debug_,
+			 "rtw_free_xmitframe23a():free_xframe_ext_cnt =%d\n",
+			 pxmitpriv->free_xframe_ext_cnt);
 	}
 
 	spin_unlock_bh(&queue->lock);
@@ -1585,8 +1584,7 @@ int rtw_xmitframe_enqueue23a(struct rtw_adapter *padapter,
 {
 	if (rtw_xmit23a_classifier(padapter, pxmitframe) == _FAIL) {
 		RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_,
-			 ("rtw_xmitframe_enqueue23a: drop xmit pkt for "
-			  "classifier fail\n"));
+			 "rtw_xmitframe_enqueue23a: drop xmit pkt for classifier fail\n");
 		return _FAIL;
 	}
 
@@ -1675,26 +1673,30 @@ struct tx_servq *rtw_get_sta_pending23a(struct rtw_adapter *padapter, struct sta
 	case 2:
 		ptxservq = &psta->sta_xmitpriv.bk_q;
 		*(ac) = 3;
-		RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_, ("rtw_get_sta_pending23a : BK\n"));
+		RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_,
+			 "rtw_get_sta_pending23a : BK\n");
 		break;
 	case 4:
 	case 5:
 		ptxservq = &psta->sta_xmitpriv.vi_q;
 		*(ac) = 1;
-		RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_, ("rtw_get_sta_pending23a : VI\n"));
+		RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_,
+			 "rtw_get_sta_pending23a : VI\n");
 		break;
 	case 6:
 	case 7:
 		ptxservq = &psta->sta_xmitpriv.vo_q;
 		*(ac) = 0;
-		RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_, ("rtw_get_sta_pending23a : VO\n"));
+		RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_,
+			 "rtw_get_sta_pending23a : VO\n");
 		break;
 	case 0:
 	case 3:
 	default:
 		ptxservq = &psta->sta_xmitpriv.be_q;
 		*(ac) = 2;
-		RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_, ("rtw_get_sta_pending23a : BE\n"));
+		RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_,
+			 "rtw_get_sta_pending23a : BE\n");
 		break;
 	}
 	return ptxservq;
@@ -1725,7 +1727,7 @@ int rtw_xmit23a_classifier(struct rtw_adapter *padapter,
 		res = _FAIL;
 		DBG_8723A("rtw_xmit23a_classifier: psta == NULL\n");
 		RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_,
-			 ("rtw_xmit23a_classifier: psta == NULL\n"));
+			 "rtw_xmit23a_classifier: psta == NULL\n");
 		goto exit;
 	}
 	if (!(psta->state & _FW_LINKED)) {
@@ -1876,14 +1878,15 @@ int rtw_xmit23a(struct rtw_adapter *padapter, struct sk_buff *skb)
 
 	if (pxmitframe == NULL) {
 		RT_TRACE(_module_xmit_osdep_c_, _drv_err_,
-			 ("rtw_xmit23a: no more pxmitframe\n"));
+			 "rtw_xmit23a: no more pxmitframe\n");
 		return -1;
 	}
 
 	res = update_attrib(padapter, skb, &pxmitframe->attrib);
 
 	if (res == _FAIL) {
-		RT_TRACE(_module_xmit_osdep_c_, _drv_err_, ("rtw_xmit23a: update attrib fail\n"));
+		RT_TRACE(_module_xmit_osdep_c_, _drv_err_,
+			 "rtw_xmit23a: update attrib fail\n");
 		rtw_free_xmitframe23a(pxmitpriv, pxmitframe);
 		return -1;
 	}
diff --git a/drivers/staging/rtl8723au/hal/HalDMOutSrc8723A_CE.c b/drivers/staging/rtl8723au/hal/HalDMOutSrc8723A_CE.c
index 179a1ba..3f9ec9e0 100644
--- a/drivers/staging/rtl8723au/hal/HalDMOutSrc8723A_CE.c
+++ b/drivers/staging/rtl8723au/hal/HalDMOutSrc8723A_CE.c
@@ -23,9 +23,8 @@
 #define		DPK_DELTA_MAPPING_NUM	13
 #define		index_mapping_HP_NUM	15
 /* 091212 chiyokolin */
-static	void
-odm_TXPowerTrackingCallback_ThermalMeter_92C(
-	struct rtw_adapter *Adapter)
+static void
+odm_TXPowerTrackingCallback_ThermalMeter_92C(struct rtw_adapter *Adapter)
 {
 	struct hal_data_8723a *pHalData = GET_HAL_DATA(Adapter);
 	struct dm_priv *pdmpriv = &pHalData->dmpriv;
@@ -35,7 +34,6 @@ odm_TXPowerTrackingCallback_ThermalMeter_92C(
 	s8 OFDM_index[2], CCK_index = 0, OFDM_index_old[2] = {0};
 	s8 CCK_index_old = 0;
 	int i = 0;
-	bool is2T = IS_92C_SERIAL(pHalData->VersionID);
 	u8 OFDM_min_index = 6, rf; /* OFDM BB Swing should be less than +3.0dB*/
 	u8 ThermalValue_HP_count = 0;
 	u32 ThermalValue_HP = 0;
@@ -60,15 +58,15 @@ odm_TXPowerTrackingCallback_ThermalMeter_92C(
 	rtl8723a_phy_ap_calibrate(Adapter, (ThermalValue -
 				  pHalData->EEPROMThermalMeter));
 
-	if (is2T)
+	if (pHalData->rf_type == RF_2T2R)
 		rf = 2;
 	else
 		rf = 1;
 
 	if (ThermalValue) {
 		/* Query OFDM path A default setting	 */
-		ele_D = PHY_QueryBBReg(Adapter, rOFDM0_XATxIQImbalance,
-				       bMaskDWord)&bMaskOFDM_D;
+		ele_D = rtl8723au_read32(Adapter, rOFDM0_XATxIQImbalance) &
+			bMaskOFDM_D;
 		for (i = 0; i < OFDM_TABLE_SIZE_92C; i++) {
 			/* find the index */
 			if (ele_D == (OFDMSwingTable23A[i]&bMaskOFDM_D)) {
@@ -78,9 +76,10 @@ odm_TXPowerTrackingCallback_ThermalMeter_92C(
 		}
 
 		/* Query OFDM path B default setting  */
-		if (is2T) {
-			ele_D = PHY_QueryBBReg(Adapter, rOFDM0_XBTxIQImbalance,
-					       bMaskDWord)&bMaskOFDM_D;
+		if (pHalData->rf_type == RF_2T2R) {
+			ele_D = rtl8723au_read32(Adapter,
+						 rOFDM0_XBTxIQImbalance);
+			ele_D &= bMaskOFDM_D;
 			for (i = 0; i < OFDM_TABLE_SIZE_92C; i++) {	/* find the index  */
 				if (ele_D == (OFDMSwingTable23A[i]&bMaskOFDM_D)) {
 					OFDM_index_old[1] = (u8)i;
@@ -90,8 +89,7 @@ odm_TXPowerTrackingCallback_ThermalMeter_92C(
 		}
 
 		/* Query CCK default setting From 0xa24 */
-		TempCCk = PHY_QueryBBReg(Adapter, rCCK0_TxFilter2,
-					 bMaskDWord)&bMaskCCK;
+		TempCCk = rtl8723au_read32(Adapter, rCCK0_TxFilter2) & bMaskCCK;
 		for (i = 0 ; i < CCK_TABLE_SIZE ; i++) {
 			if (pdmpriv->bCCKinCH14) {
 				if (!memcmp(&TempCCk,
@@ -224,12 +222,13 @@ odm_TXPowerTrackingCallback_ThermalMeter_92C(
 			}
 
 			if (CCK_index > (CCK_TABLE_SIZE-1))
-				CCK_index = (CCK_TABLE_SIZE-1);
+				CCK_index = CCK_TABLE_SIZE-1;
 			else if (CCK_index < 0)
 				CCK_index = 0;
 		}
 
-		if (pdmpriv->TxPowerTrackControl && (delta != 0 || delta_HP != 0)) {
+		if (pdmpriv->TxPowerTrackControl &&
+		    (delta != 0 || delta_HP != 0)) {
 			/* Adujst OFDM Ant_A according to IQK result */
 			ele_D = (OFDMSwingTable23A[OFDM_index[0]] & 0xFFC00000)>>22;
 			X = pdmpriv->RegE94;
@@ -247,7 +246,9 @@ odm_TXPowerTrackingCallback_ThermalMeter_92C(
 
 				/* write new elements A, C, D to regC80 and regC94, element B is always 0 */
 				value32 = (ele_D<<22)|((ele_C&0x3F)<<16)|ele_A;
-				PHY_SetBBReg(Adapter, rOFDM0_XATxIQImbalance, bMaskDWord, value32);
+				rtl8723au_write32(Adapter,
+						  rOFDM0_XATxIQImbalance,
+						  value32);
 
 				value32 = (ele_C&0x000003C0)>>6;
 				PHY_SetBBReg(Adapter, rOFDM0_XCTxAFE, bMaskH4Bits, value32);
@@ -260,9 +261,9 @@ odm_TXPowerTrackingCallback_ThermalMeter_92C(
 				PHY_SetBBReg(Adapter, rOFDM0_ECCAThreshold,
 					     BIT(29), value32);
 			} else {
-				PHY_SetBBReg(Adapter, rOFDM0_XATxIQImbalance,
-					     bMaskDWord,
-					     OFDMSwingTable23A[OFDM_index[0]]);
+				rtl8723au_write32(Adapter,
+						  rOFDM0_XATxIQImbalance,
+						  OFDMSwingTable23A[OFDM_index[0]]);
 				PHY_SetBBReg(Adapter, rOFDM0_XCTxAFE,
 					     bMaskH4Bits, 0x00);
 				PHY_SetBBReg(Adapter, rOFDM0_ECCAThreshold,
@@ -290,7 +291,7 @@ odm_TXPowerTrackingCallback_ThermalMeter_92C(
 				rtl8723au_write8(Adapter, 0xa29, CCKSwingTable_Ch1423A[CCK_index][7]);
 			}
 
-			if (is2T) {
+			if (pHalData->rf_type == RF_2T2R) {
 				ele_D = (OFDMSwingTable23A[(u8)OFDM_index[1]] & 0xFFC00000)>>22;
 
 				/* new element A = element D x X */
@@ -309,7 +310,7 @@ odm_TXPowerTrackingCallback_ThermalMeter_92C(
 
 					/* write new elements A, C, D to regC88 and regC9C, element B is always 0 */
 					value32 = (ele_D<<22)|((ele_C&0x3F)<<16) | ele_A;
-					PHY_SetBBReg(Adapter, rOFDM0_XBTxIQImbalance, bMaskDWord, value32);
+					rtl8723au_write32(Adapter, rOFDM0_XBTxIQImbalance, value32);
 
 					value32 = (ele_C&0x000003C0)>>6;
 					PHY_SetBBReg(Adapter, rOFDM0_XDTxAFE, bMaskH4Bits, value32);
@@ -324,10 +325,9 @@ odm_TXPowerTrackingCallback_ThermalMeter_92C(
 						     rOFDM0_ECCAThreshold,
 						     BIT(25), value32);
 				} else {
-					PHY_SetBBReg(Adapter,
-						     rOFDM0_XBTxIQImbalance,
-						     bMaskDWord,
-						     OFDMSwingTable23A[OFDM_index[1]]);
+					rtl8723au_write32(Adapter,
+							  rOFDM0_XBTxIQImbalance,
+							  OFDMSwingTable23A[OFDM_index[1]]);
 					PHY_SetBBReg(Adapter,
 						     rOFDM0_XDTxAFE,
 						     bMaskH4Bits, 0x00);
@@ -361,14 +361,10 @@ static void ODM_TXPowerTracking92CDirectCall(struct rtw_adapter *Adapter)
 	odm_TXPowerTrackingCallback_ThermalMeter_92C(Adapter);
 }
 
-static void odm_CheckTXPowerTracking_ThermalMeter(struct rtw_adapter *Adapter)
+void rtl8723a_odm_check_tx_power_tracking(struct rtw_adapter *Adapter)
 {
 	struct hal_data_8723a *pHalData = GET_HAL_DATA(Adapter);
 	struct dm_priv *pdmpriv = &pHalData->dmpriv;
-	struct dm_odm_t *podmpriv = &pHalData->odmpriv;
-
-	if (!(podmpriv->SupportAbility & ODM_RF_TX_PWR_TRACK))
-		return;
 
 	if (!pdmpriv->TM_Trigger) {		/* at least delay 1 sec */
 		PHY_SetRFReg(Adapter, RF_PATH_A, RF_T_METER, bRFRegOffsetMask, 0x60);
@@ -381,11 +377,6 @@ static void odm_CheckTXPowerTracking_ThermalMeter(struct rtw_adapter *Adapter)
 	}
 }
 
-void rtl8723a_odm_check_tx_power_tracking(struct rtw_adapter *Adapter)
-{
-	odm_CheckTXPowerTracking_ThermalMeter(Adapter);
-}
-
 /*	IQK */
 #define MAX_TOLERANCE		5
 #define IQK_DELAY_TIME		1	/* ms */
@@ -397,36 +388,37 @@ static u8 _PHY_PathA_IQK(struct rtw_adapter *pAdapter, bool configPathB)
 	struct hal_data_8723a *pHalData = GET_HAL_DATA(pAdapter);
 
 	/* path-A IQK setting */
-	PHY_SetBBReg(pAdapter, rTx_IQK_Tone_A, bMaskDWord, 0x10008c1f);
-	PHY_SetBBReg(pAdapter, rRx_IQK_Tone_A, bMaskDWord, 0x10008c1f);
-	PHY_SetBBReg(pAdapter, rTx_IQK_PI_A, bMaskDWord, 0x82140102);
+	rtl8723au_write32(pAdapter, rTx_IQK_Tone_A, 0x10008c1f);
+	rtl8723au_write32(pAdapter, rRx_IQK_Tone_A, 0x10008c1f);
+	rtl8723au_write32(pAdapter, rTx_IQK_PI_A, 0x82140102);
 
-	PHY_SetBBReg(pAdapter, rRx_IQK_PI_A, bMaskDWord, configPathB ? 0x28160202 :
+	rtl8723au_write32(pAdapter, rRx_IQK_PI_A, configPathB ? 0x28160202 :
 		IS_81xxC_VENDOR_UMC_B_CUT(pHalData->VersionID)?0x28160202:0x28160502);
 
 	/* path-B IQK setting */
 	if (configPathB) {
-		PHY_SetBBReg(pAdapter, rTx_IQK_Tone_B, bMaskDWord, 0x10008c22);
-		PHY_SetBBReg(pAdapter, rRx_IQK_Tone_B, bMaskDWord, 0x10008c22);
-		PHY_SetBBReg(pAdapter, rTx_IQK_PI_B, bMaskDWord, 0x82140102);
-		PHY_SetBBReg(pAdapter, rRx_IQK_PI_B, bMaskDWord, 0x28160202);
+		rtl8723au_write32(pAdapter, rTx_IQK_Tone_B, 0x10008c22);
+		rtl8723au_write32(pAdapter, rRx_IQK_Tone_B, 0x10008c22);
+		rtl8723au_write32(pAdapter, rTx_IQK_PI_B, 0x82140102);
+		rtl8723au_write32(pAdapter, rRx_IQK_PI_B, 0x28160202);
 	}
 
 	/* LO calibration setting */
-	PHY_SetBBReg(pAdapter, rIQK_AGC_Rsp, bMaskDWord, 0x001028d1);
+	rtl8723au_write32(pAdapter, rIQK_AGC_Rsp, 0x001028d1);
 
 	/* One shot, path A LOK & IQK */
-	PHY_SetBBReg(pAdapter, rIQK_AGC_Pts, bMaskDWord, 0xf9000000);
-	PHY_SetBBReg(pAdapter, rIQK_AGC_Pts, bMaskDWord, 0xf8000000);
+	rtl8723au_write32(pAdapter, rIQK_AGC_Pts, 0xf9000000);
+	rtl8723au_write32(pAdapter, rIQK_AGC_Pts, 0xf8000000);
 
 	/*  delay x ms */
-	udelay(IQK_DELAY_TIME*1000);/* PlatformStallExecution(IQK_DELAY_TIME*1000); */
+	/* PlatformStallExecution(IQK_DELAY_TIME*1000); */
+	udelay(IQK_DELAY_TIME*1000);
 
 	/*  Check failed */
-	regEAC = PHY_QueryBBReg(pAdapter, rRx_Power_After_IQK_A_2, bMaskDWord);
-	regE94 = PHY_QueryBBReg(pAdapter, rTx_Power_Before_IQK_A, bMaskDWord);
-	regE9C = PHY_QueryBBReg(pAdapter, rTx_Power_After_IQK_A, bMaskDWord);
-	regEA4 = PHY_QueryBBReg(pAdapter, rRx_Power_Before_IQK_A_2, bMaskDWord);
+	regEAC = rtl8723au_read32(pAdapter, rRx_Power_After_IQK_A_2);
+	regE94 = rtl8723au_read32(pAdapter, rTx_Power_Before_IQK_A);
+	regE9C = rtl8723au_read32(pAdapter, rTx_Power_After_IQK_A);
+	regEA4 = rtl8723au_read32(pAdapter, rRx_Power_Before_IQK_A_2);
 
 	if (!(regEAC & BIT(28)) &&
 	    (((regE94 & 0x03FF0000)>>16) != 0x142) &&
@@ -435,7 +427,7 @@ static u8 _PHY_PathA_IQK(struct rtw_adapter *pAdapter, bool configPathB)
 	else			/* if Tx not OK, ignore Rx */
 		return result;
 
-	if (!(regEAC & BIT(27)) &&		/* if Tx is OK, check whether Rx is OK */
+	if (!(regEAC & BIT(27)) && /* if Tx is OK, check whether Rx is OK */
 	    (((regEA4 & 0x03FF0000)>>16) != 0x132) &&
 	    (((regEAC & 0x03FF0000)>>16) != 0x36))
 		result |= 0x02;
@@ -450,18 +442,18 @@ static u8 _PHY_PathB_IQK(struct rtw_adapter *pAdapter)
 	u8 result = 0x00;
 
 	/* One shot, path B LOK & IQK */
-	PHY_SetBBReg(pAdapter, rIQK_AGC_Cont, bMaskDWord, 0x00000002);
-	PHY_SetBBReg(pAdapter, rIQK_AGC_Cont, bMaskDWord, 0x00000000);
+	rtl8723au_write32(pAdapter, rIQK_AGC_Cont, 0x00000002);
+	rtl8723au_write32(pAdapter, rIQK_AGC_Cont, 0x00000000);
 
 	/*  delay x ms */
 	udelay(IQK_DELAY_TIME*1000);
 
 	/*  Check failed */
-	regEAC = PHY_QueryBBReg(pAdapter, rRx_Power_After_IQK_A_2, bMaskDWord);
-	regEB4 = PHY_QueryBBReg(pAdapter, rTx_Power_Before_IQK_B, bMaskDWord);
-	regEBC = PHY_QueryBBReg(pAdapter, rTx_Power_After_IQK_B, bMaskDWord);
-	regEC4 = PHY_QueryBBReg(pAdapter, rRx_Power_Before_IQK_B_2, bMaskDWord);
-	regECC = PHY_QueryBBReg(pAdapter, rRx_Power_After_IQK_B_2, bMaskDWord);
+	regEAC = rtl8723au_read32(pAdapter, rRx_Power_After_IQK_A_2);
+	regEB4 = rtl8723au_read32(pAdapter, rTx_Power_Before_IQK_B);
+	regEBC = rtl8723au_read32(pAdapter, rTx_Power_After_IQK_B);
+	regEC4 = rtl8723au_read32(pAdapter, rRx_Power_Before_IQK_B_2);
+	regECC = rtl8723au_read32(pAdapter, rRx_Power_After_IQK_B_2);
 
 	if (!(regEAC & BIT(31)) &&
 	    (((regEB4 & 0x03FF0000)>>16) != 0x142) &&
@@ -494,22 +486,27 @@ static void _PHY_PathAFillIQKMatrix(struct rtw_adapter *pAdapter,
 	if (final_candidate == 0xFF) {
 		return;
 	} else if (bIQKOK) {
-		Oldval_0 = (PHY_QueryBBReg(pAdapter, rOFDM0_XATxIQImbalance, bMaskDWord) >> 22) & 0x3FF;
+		Oldval_0 = rtl8723au_read32(pAdapter, rOFDM0_XATxIQImbalance);
+		Oldval_0 = (Oldval_0 >> 22) & 0x3FF;
 
 		X = result[final_candidate][0];
 		if ((X & 0x00000200) != 0)
 			X = X | 0xFFFFFC00;
 		TX0_A = (X * Oldval_0) >> 8;
 		PHY_SetBBReg(pAdapter, rOFDM0_XATxIQImbalance, 0x3FF, TX0_A);
-		PHY_SetBBReg(pAdapter, rOFDM0_ECCAThreshold, BIT(31), ((X * Oldval_0>>7) & 0x1));
+		PHY_SetBBReg(pAdapter, rOFDM0_ECCAThreshold, BIT(31),
+			     ((X * Oldval_0>>7) & 0x1));
 
 		Y = result[final_candidate][1];
 		if ((Y & 0x00000200) != 0)
 			Y = Y | 0xFFFFFC00;
 		TX0_C = (Y * Oldval_0) >> 8;
-		PHY_SetBBReg(pAdapter, rOFDM0_XCTxAFE, 0xF0000000, ((TX0_C&0x3C0)>>6));
-		PHY_SetBBReg(pAdapter, rOFDM0_XATxIQImbalance, 0x003F0000, (TX0_C&0x3F));
-		PHY_SetBBReg(pAdapter, rOFDM0_ECCAThreshold, BIT(29), ((Y * Oldval_0>>7) & 0x1));
+		PHY_SetBBReg(pAdapter, rOFDM0_XCTxAFE, 0xF0000000,
+			     ((TX0_C&0x3C0)>>6));
+		PHY_SetBBReg(pAdapter, rOFDM0_XATxIQImbalance, 0x003F0000,
+			     (TX0_C&0x3F));
+		PHY_SetBBReg(pAdapter, rOFDM0_ECCAThreshold, BIT(29),
+			     ((Y * Oldval_0>>7) & 0x1));
 
 		if (bTxOnly) {
 			DBG_8723A("_PHY_PathAFillIQKMatrix only Tx OK\n");
@@ -537,22 +534,27 @@ static void _PHY_PathBFillIQKMatrix(struct rtw_adapter *pAdapter, bool bIQKOK, i
 	if (final_candidate == 0xFF) {
 		return;
 	} else if (bIQKOK) {
-		Oldval_1 = (PHY_QueryBBReg(pAdapter, rOFDM0_XBTxIQImbalance, bMaskDWord) >> 22) & 0x3FF;
+		Oldval_1 = rtl8723au_read32(pAdapter, rOFDM0_XBTxIQImbalance);
+		Oldval_1 = (Oldval_1 >> 22) & 0x3FF;
 
 		X = result[final_candidate][4];
 		if ((X & 0x00000200) != 0)
 			X = X | 0xFFFFFC00;
 		TX1_A = (X * Oldval_1) >> 8;
 		PHY_SetBBReg(pAdapter, rOFDM0_XBTxIQImbalance, 0x3FF, TX1_A);
-		PHY_SetBBReg(pAdapter, rOFDM0_ECCAThreshold, BIT(27), ((X * Oldval_1>>7) & 0x1));
+		PHY_SetBBReg(pAdapter, rOFDM0_ECCAThreshold, BIT(27),
+			     ((X * Oldval_1 >> 7) & 0x1));
 
 		Y = result[final_candidate][5];
 		if ((Y & 0x00000200) != 0)
 			Y = Y | 0xFFFFFC00;
 		TX1_C = (Y * Oldval_1) >> 8;
-		PHY_SetBBReg(pAdapter, rOFDM0_XDTxAFE, 0xF0000000, ((TX1_C&0x3C0)>>6));
-		PHY_SetBBReg(pAdapter, rOFDM0_XBTxIQImbalance, 0x003F0000, (TX1_C&0x3F));
-		PHY_SetBBReg(pAdapter, rOFDM0_ECCAThreshold, BIT(25), ((Y * Oldval_1>>7) & 0x1));
+		PHY_SetBBReg(pAdapter, rOFDM0_XDTxAFE, 0xF0000000,
+			     ((TX1_C & 0x3C0) >> 6));
+		PHY_SetBBReg(pAdapter, rOFDM0_XBTxIQImbalance, 0x003F0000,
+			     (TX1_C & 0x3F));
+		PHY_SetBBReg(pAdapter, rOFDM0_ECCAThreshold, BIT(25),
+			     ((Y * Oldval_1 >> 7) & 0x1));
 
 		if (bTxOnly)
 			return;
@@ -573,11 +575,12 @@ static void _PHY_SaveADDARegisters(struct rtw_adapter *pAdapter, u32 *ADDAReg, u
 	u32 i;
 
 	for (i = 0 ; i < RegisterNum ; i++) {
-		ADDABackup[i] = PHY_QueryBBReg(pAdapter, ADDAReg[i], bMaskDWord);
+		ADDABackup[i] = rtl8723au_read32(pAdapter, ADDAReg[i]);
 	}
 }
 
-static void _PHY_SaveMACRegisters(struct rtw_adapter *pAdapter, u32 *MACReg, u32 *MACBackup)
+static void _PHY_SaveMACRegisters(struct rtw_adapter *pAdapter, u32 *MACReg,
+				  u32 *MACBackup)
 {
 	u32 i;
 
@@ -587,16 +590,19 @@ static void _PHY_SaveMACRegisters(struct rtw_adapter *pAdapter, u32 *MACReg, u32
 	MACBackup[i] = rtl8723au_read32(pAdapter, MACReg[i]);
 }
 
-static void _PHY_ReloadADDARegisters(struct rtw_adapter *pAdapter, u32 *ADDAReg, u32 *ADDABackup, u32 RegiesterNum)
+static void _PHY_ReloadADDARegisters(struct rtw_adapter *pAdapter,
+				     u32 *ADDAReg, u32 *ADDABackup,
+				     u32 RegiesterNum)
 {
 	u32 i;
 
 	for (i = 0 ; i < RegiesterNum ; i++) {
-		PHY_SetBBReg(pAdapter, ADDAReg[i], bMaskDWord, ADDABackup[i]);
+		rtl8723au_write32(pAdapter, ADDAReg[i], ADDABackup[i]);
 	}
 }
 
-static void _PHY_ReloadMACRegisters(struct rtw_adapter *pAdapter, u32 *MACReg, u32 *MACBackup)
+static void _PHY_ReloadMACRegisters(struct rtw_adapter *pAdapter,
+				    u32 *MACReg, u32 *MACBackup)
 {
 	u32 i;
 
@@ -606,7 +612,8 @@ static void _PHY_ReloadMACRegisters(struct rtw_adapter *pAdapter, u32 *MACReg, u
 	rtl8723au_write32(pAdapter, MACReg[i], MACBackup[i]);
 }
 
-static void _PHY_PathADDAOn(struct rtw_adapter *pAdapter, u32 *ADDAReg, bool isPathAOn, bool is2T)
+static void _PHY_PathADDAOn(struct rtw_adapter *pAdapter, u32 *ADDAReg,
+			    bool isPathAOn, bool is2T)
 {
 	u32 pathOn;
 	u32 i;
@@ -614,16 +621,17 @@ static void _PHY_PathADDAOn(struct rtw_adapter *pAdapter, u32 *ADDAReg, bool isP
 	pathOn = isPathAOn ? 0x04db25a4 : 0x0b1b25a4;
 	if (!is2T) {
 		pathOn = 0x0bdb25a0;
-		PHY_SetBBReg(pAdapter, ADDAReg[0], bMaskDWord, 0x0b1b25a0);
+		rtl8723au_write32(pAdapter, ADDAReg[0], 0x0b1b25a0);
 	} else {
-		PHY_SetBBReg(pAdapter, ADDAReg[0], bMaskDWord, pathOn);
+		rtl8723au_write32(pAdapter, ADDAReg[0], pathOn);
 	}
 
 	for (i = 1 ; i < IQK_ADDA_REG_NUM ; i++)
-		PHY_SetBBReg(pAdapter, ADDAReg[i], bMaskDWord, pathOn);
+		rtl8723au_write32(pAdapter, ADDAReg[i], pathOn);
 }
 
-static void _PHY_MACSettingCalibration(struct rtw_adapter *pAdapter, u32 *MACReg, u32 *MACBackup)
+static void _PHY_MACSettingCalibration(struct rtw_adapter *pAdapter,
+				       u32 *MACReg, u32 *MACBackup)
 {
 	u32 i = 0;
 
@@ -638,9 +646,9 @@ static void _PHY_MACSettingCalibration(struct rtw_adapter *pAdapter, u32 *MACReg
 
 static void _PHY_PathAStandBy(struct rtw_adapter *pAdapter)
 {
-	PHY_SetBBReg(pAdapter, rFPGA0_IQK, bMaskDWord, 0x0);
-	PHY_SetBBReg(pAdapter, 0x840, bMaskDWord, 0x00010000);
-	PHY_SetBBReg(pAdapter, rFPGA0_IQK, bMaskDWord, 0x80800000);
+	rtl8723au_write32(pAdapter, rFPGA0_IQK, 0x0);
+	rtl8723au_write32(pAdapter, 0x840, 0x00010000);
+	rtl8723au_write32(pAdapter, rFPGA0_IQK, 0x80800000);
 }
 
 static void _PHY_PIModeSwitch(struct rtw_adapter *pAdapter, bool PIMode)
@@ -648,8 +656,8 @@ static void _PHY_PIModeSwitch(struct rtw_adapter *pAdapter, bool PIMode)
 	u32 mode;
 
 	mode = PIMode ? 0x01000100 : 0x01000000;
-	PHY_SetBBReg(pAdapter, 0x820, bMaskDWord, mode);
-	PHY_SetBBReg(pAdapter, 0x828, bMaskDWord, mode);
+	rtl8723au_write32(pAdapter, 0x820, mode);
+	rtl8723au_write32(pAdapter, 0x828, mode);
 }
 
 /*
@@ -660,9 +668,9 @@ static bool _PHY_SimularityCompare(struct rtw_adapter *pAdapter, int result[][8]
 	u32 i, j, diff, SimularityBitMap, bound = 0;
 	struct hal_data_8723a *pHalData = GET_HAL_DATA(pAdapter);
 	u8 final_candidate[2] = {0xFF, 0xFF};	/* for path A and path B */
-	bool bResult = true, is2T = IS_92C_SERIAL(pHalData->VersionID);
+	bool bResult = true;
 
-	if (is2T)
+	if (pHalData->rf_type == RF_2T2R)
 		bound = 8;
 	else
 		bound = 4;
@@ -699,7 +707,7 @@ static bool _PHY_SimularityCompare(struct rtw_adapter *pAdapter, int result[][8]
 		for (i = 0; i < 4; i++)
 			result[3][i] = result[c1][i];
 		return false;
-	} else if (!(SimularityBitMap & 0xF0) && is2T) {
+	} else if (!(SimularityBitMap & 0xF0) && pHalData->rf_type == RF_2T2R) {
 		/* path B OK */
 		for (i = 4; i < 8; i++)
 			result[3][i] = result[c1][i];
@@ -746,7 +754,7 @@ static void _PHY_IQCalibrate(struct rtw_adapter *pAdapter, int result[][8], u8 t
 	u32 bbvalue;
 
 	if (t == 0) {
-		bbvalue = PHY_QueryBBReg(pAdapter, rFPGA0_RFMOD, bMaskDWord);
+		bbvalue = rtl8723au_read32(pAdapter, rFPGA0_RFMOD);
 
 		/*  Save ADDA parameters, turn Path A ADDA on */
 		_PHY_SaveADDARegisters(pAdapter, ADDA_REG, pdmpriv->ADDA_backup, IQK_ADDA_REG_NUM);
@@ -766,48 +774,50 @@ static void _PHY_IQCalibrate(struct rtw_adapter *pAdapter, int result[][8], u8 t
 	}
 
 	PHY_SetBBReg(pAdapter, rFPGA0_RFMOD, BIT(24), 0x00);
-	PHY_SetBBReg(pAdapter, rOFDM0_TRxPathEnable, bMaskDWord, 0x03a05600);
-	PHY_SetBBReg(pAdapter, rOFDM0_TRMuxPar, bMaskDWord, 0x000800e4);
-	PHY_SetBBReg(pAdapter, rFPGA0_XCD_RFInterfaceSW, bMaskDWord, 0x22204000);
+	rtl8723au_write32(pAdapter, rOFDM0_TRxPathEnable, 0x03a05600);
+	rtl8723au_write32(pAdapter, rOFDM0_TRMuxPar, 0x000800e4);
+	rtl8723au_write32(pAdapter, rFPGA0_XCD_RFInterfaceSW, 0x22204000);
 	PHY_SetBBReg(pAdapter, rFPGA0_XAB_RFInterfaceSW, BIT(10), 0x01);
 	PHY_SetBBReg(pAdapter, rFPGA0_XAB_RFInterfaceSW, BIT(26), 0x01);
 	PHY_SetBBReg(pAdapter, rFPGA0_XA_RFInterfaceOE, BIT(10), 0x00);
 	PHY_SetBBReg(pAdapter, rFPGA0_XB_RFInterfaceOE, BIT(10), 0x00);
 
 	if (is2T) {
-		PHY_SetBBReg(pAdapter, rFPGA0_XA_LSSIParameter, bMaskDWord, 0x00010000);
-		PHY_SetBBReg(pAdapter, rFPGA0_XB_LSSIParameter, bMaskDWord, 0x00010000);
+		rtl8723au_write32(pAdapter,
+				  rFPGA0_XA_LSSIParameter, 0x00010000);
+		rtl8723au_write32(pAdapter,
+				  rFPGA0_XB_LSSIParameter, 0x00010000);
 	}
 
 	/* MAC settings */
 	_PHY_MACSettingCalibration(pAdapter, IQK_MAC_REG, pdmpriv->IQK_MAC_backup);
 
 	/* Page B init */
-	PHY_SetBBReg(pAdapter, rConfig_AntA, bMaskDWord, 0x00080000);
+	rtl8723au_write32(pAdapter, rConfig_AntA, 0x00080000);
 
 	if (is2T)
-		PHY_SetBBReg(pAdapter, rConfig_AntB, bMaskDWord, 0x00080000);
+		rtl8723au_write32(pAdapter, rConfig_AntB, 0x00080000);
 
 	/*  IQ calibration setting */
-	PHY_SetBBReg(pAdapter, rFPGA0_IQK, bMaskDWord, 0x80800000);
-	PHY_SetBBReg(pAdapter, rTx_IQK, bMaskDWord, 0x01007c00);
-	PHY_SetBBReg(pAdapter, rRx_IQK, bMaskDWord, 0x01004800);
+	rtl8723au_write32(pAdapter, rFPGA0_IQK, 0x80800000);
+	rtl8723au_write32(pAdapter, rTx_IQK, 0x01007c00);
+	rtl8723au_write32(pAdapter, rRx_IQK, 0x01004800);
 
 	for (i = 0 ; i < retryCount ; i++) {
 		PathAOK = _PHY_PathA_IQK(pAdapter, is2T);
 		if (PathAOK == 0x03) {
 				DBG_8723A("Path A IQK Success!!\n");
-				result[t][0] = (PHY_QueryBBReg(pAdapter, rTx_Power_Before_IQK_A, bMaskDWord)&0x3FF0000)>>16;
-				result[t][1] = (PHY_QueryBBReg(pAdapter, rTx_Power_After_IQK_A, bMaskDWord)&0x3FF0000)>>16;
-				result[t][2] = (PHY_QueryBBReg(pAdapter, rRx_Power_Before_IQK_A_2, bMaskDWord)&0x3FF0000)>>16;
-				result[t][3] = (PHY_QueryBBReg(pAdapter, rRx_Power_After_IQK_A_2, bMaskDWord)&0x3FF0000)>>16;
+				result[t][0] = (rtl8723au_read32(pAdapter, rTx_Power_Before_IQK_A)&0x3FF0000)>>16;
+				result[t][1] = (rtl8723au_read32(pAdapter, rTx_Power_After_IQK_A)&0x3FF0000)>>16;
+				result[t][2] = (rtl8723au_read32(pAdapter, rRx_Power_Before_IQK_A_2)&0x3FF0000)>>16;
+				result[t][3] = (rtl8723au_read32(pAdapter, rRx_Power_After_IQK_A_2)&0x3FF0000)>>16;
 			break;
 		} else if (i == (retryCount-1) && PathAOK == 0x01) {
 			/* Tx IQK OK */
 			DBG_8723A("Path A IQK Only  Tx Success!!\n");
 
-			result[t][0] = (PHY_QueryBBReg(pAdapter, rTx_Power_Before_IQK_A, bMaskDWord)&0x3FF0000)>>16;
-			result[t][1] = (PHY_QueryBBReg(pAdapter, rTx_Power_After_IQK_A, bMaskDWord)&0x3FF0000)>>16;
+			result[t][0] = (rtl8723au_read32(pAdapter, rTx_Power_Before_IQK_A)&0x3FF0000)>>16;
+			result[t][1] = (rtl8723au_read32(pAdapter, rTx_Power_After_IQK_A)&0x3FF0000)>>16;
 		}
 	}
 
@@ -825,16 +835,16 @@ static void _PHY_IQCalibrate(struct rtw_adapter *pAdapter, int result[][8], u8 t
 			PathBOK = _PHY_PathB_IQK(pAdapter);
 			if (PathBOK == 0x03) {
 				DBG_8723A("Path B IQK Success!!\n");
-				result[t][4] = (PHY_QueryBBReg(pAdapter, rTx_Power_Before_IQK_B, bMaskDWord)&0x3FF0000)>>16;
-				result[t][5] = (PHY_QueryBBReg(pAdapter, rTx_Power_After_IQK_B, bMaskDWord)&0x3FF0000)>>16;
-				result[t][6] = (PHY_QueryBBReg(pAdapter, rRx_Power_Before_IQK_B_2, bMaskDWord)&0x3FF0000)>>16;
-				result[t][7] = (PHY_QueryBBReg(pAdapter, rRx_Power_After_IQK_B_2, bMaskDWord)&0x3FF0000)>>16;
+				result[t][4] = (rtl8723au_read32(pAdapter, rTx_Power_Before_IQK_B)&0x3FF0000)>>16;
+				result[t][5] = (rtl8723au_read32(pAdapter, rTx_Power_After_IQK_B)&0x3FF0000)>>16;
+				result[t][6] = (rtl8723au_read32(pAdapter, rRx_Power_Before_IQK_B_2)&0x3FF0000)>>16;
+				result[t][7] = (rtl8723au_read32(pAdapter, rRx_Power_After_IQK_B_2)&0x3FF0000)>>16;
 				break;
 			} else if (i == (retryCount - 1) && PathBOK == 0x01) {
 				/* Tx IQK OK */
 				DBG_8723A("Path B Only Tx IQK Success!!\n");
-				result[t][4] = (PHY_QueryBBReg(pAdapter, rTx_Power_Before_IQK_B, bMaskDWord)&0x3FF0000)>>16;
-				result[t][5] = (PHY_QueryBBReg(pAdapter, rTx_Power_After_IQK_B, bMaskDWord)&0x3FF0000)>>16;
+				result[t][4] = (rtl8723au_read32(pAdapter, rTx_Power_Before_IQK_B)&0x3FF0000)>>16;
+				result[t][5] = (rtl8723au_read32(pAdapter, rTx_Power_After_IQK_B)&0x3FF0000)>>16;
 			}
 		}
 
@@ -844,7 +854,7 @@ static void _PHY_IQCalibrate(struct rtw_adapter *pAdapter, int result[][8], u8 t
 	}
 
 	/* Back to BB mode, load original value */
-	PHY_SetBBReg(pAdapter, rFPGA0_IQK, bMaskDWord, 0);
+	rtl8723au_write32(pAdapter, rFPGA0_IQK, 0);
 
 	if (t != 0) {
 		if (!pdmpriv->bRfPiEnable) {
@@ -862,14 +872,16 @@ static void _PHY_IQCalibrate(struct rtw_adapter *pAdapter, int result[][8], u8 t
 		_PHY_ReloadADDARegisters(pAdapter, IQK_BB_REG_92C, pdmpriv->IQK_BB_backup, IQK_BB_REG_NUM);
 
 		/*  Restore RX initial gain */
-		PHY_SetBBReg(pAdapter, rFPGA0_XA_LSSIParameter, bMaskDWord, 0x00032ed3);
+		rtl8723au_write32(pAdapter,
+				  rFPGA0_XA_LSSIParameter, 0x00032ed3);
 		if (is2T) {
-			PHY_SetBBReg(pAdapter, rFPGA0_XB_LSSIParameter, bMaskDWord, 0x00032ed3);
+			rtl8723au_write32(pAdapter,
+					  rFPGA0_XB_LSSIParameter, 0x00032ed3);
 		}
 
 		/* load 0xe30 IQC default value */
-		PHY_SetBBReg(pAdapter, rTx_IQK_Tone_A, bMaskDWord, 0x01008c00);
-		PHY_SetBBReg(pAdapter, rRx_IQK_Tone_A, bMaskDWord, 0x01008c00);
+		rtl8723au_write32(pAdapter, rTx_IQK_Tone_A, 0x01008c00);
+		rtl8723au_write32(pAdapter, rRx_IQK_Tone_A, 0x01008c00);
 
 	}
 }
@@ -980,12 +992,10 @@ void rtl8723a_phy_iq_calibrate(struct rtw_adapter *pAdapter, bool bReCovery)
 	is13simular = false;
 
 	for (i = 0; i < 3; i++) {
-		if (IS_92C_SERIAL(pHalData->VersionID)) {
-			 _PHY_IQCalibrate(pAdapter, result, i, true);
-		} else {
-			/*  For 88C 1T1R */
+		if (pHalData->rf_type == RF_2T2R)
+			_PHY_IQCalibrate(pAdapter, result, i, true);
+		else /*  For 88C 1T1R */
 			_PHY_IQCalibrate(pAdapter, result, i, false);
-		}
 
 		if (i == 1) {
 			is12simular = _PHY_SimularityCompare(pAdapter, result, 0, 1);
@@ -1053,9 +1063,10 @@ void rtl8723a_phy_iq_calibrate(struct rtw_adapter *pAdapter, bool bReCovery)
 	if ((RegE94 != 0)/*&&(RegEA4 != 0)*/)
 		_PHY_PathAFillIQKMatrix(pAdapter, bPathAOK, result, final_candidate, (RegEA4 == 0));
 
-	if (IS_92C_SERIAL(pHalData->VersionID)) {
+	if (pHalData->rf_type == RF_2T2R) {
 		if ((RegEB4 != 0)/*&&(RegEC4 != 0)*/)
-		_PHY_PathBFillIQKMatrix(pAdapter, bPathBOK, result, final_candidate, (RegEC4 == 0));
+			_PHY_PathBFillIQKMatrix(pAdapter, bPathBOK, result,
+						final_candidate, (RegEC4 == 0));
 	}
 
 	_PHY_SaveADDARegisters(pAdapter, IQK_BB_REG_92C, pdmpriv->IQK_BB_backup_recover, 9);
@@ -1074,12 +1085,10 @@ void rtl8723a_phy_lc_calibrate(struct rtw_adapter *pAdapter)
 	if (pmlmeext->sitesurvey_res.state == SCAN_PROCESS)
 		return;
 
-	if (IS_92C_SERIAL(pHalData->VersionID)) {
+	if (pHalData->rf_type == RF_2T2R)
 		_PHY_LCCalibrate(pAdapter, true);
-	} else {
-		/*  For 88C 1T1R */
+	else	/*  For 88C 1T1R */
 		_PHY_LCCalibrate(pAdapter, false);
-	}
 }
 
 void
diff --git a/drivers/staging/rtl8723au/hal/HalHWImg8723A_BB.c b/drivers/staging/rtl8723au/hal/HalHWImg8723A_BB.c
index 9d4f6be..e8cab9e 100644
--- a/drivers/staging/rtl8723au/hal/HalHWImg8723A_BB.c
+++ b/drivers/staging/rtl8723au/hal/HalHWImg8723A_BB.c
@@ -30,12 +30,12 @@ static bool CheckCondition(const u32  Condition, const u32  Hex)
 		return false;
 
 	cond = Condition & 0x0000FF00;
-	cond = cond >> 8;
+	cond >>= 8;
 	if ((_interface & cond) == 0 && cond != 0x07)
 		return false;
 
 	cond = Condition & 0x00FF0000;
-	cond = cond >> 16;
+	cond >>= 16;
 	if ((_platform & cond) == 0 && cond != 0x0F)
 		return false;
 	return true;
@@ -215,17 +215,15 @@ static u32 Array_AGC_TAB_1T_8723A[] = {
 
 void ODM_ReadAndConfig_AGC_TAB_1T_8723A(struct dm_odm_t *pDM_Odm)
 {
-
 	u32 hex;
 	u32 i;
 	u8 platform = 0x04;
-	u8 interfaceValue   = pDM_Odm->SupportInterface;
 	u8 board = pDM_Odm->BoardType;
 	u32 ArrayLen = sizeof(Array_AGC_TAB_1T_8723A)/sizeof(u32);
 	u32 *Array = Array_AGC_TAB_1T_8723A;
 
 	hex = board;
-	hex += interfaceValue << 8;
+	hex += ODM_ITRF_USB << 8;
 	hex += platform << 16;
 	hex += 0xFF000000;
 	for (i = 0; i < ArrayLen; i += 2) {
@@ -234,11 +232,11 @@ void ODM_ReadAndConfig_AGC_TAB_1T_8723A(struct dm_odm_t *pDM_Odm)
 
 		/*  This (offset, data) pair meets the condition. */
 		if (v1 < 0xCDCDCDCD) {
-			odm_ConfigBB_AGC_8723A(pDM_Odm, v1, bMaskDWord, v2);
+			odm_ConfigBB_AGC_8723A(pDM_Odm, v1, v2);
 			continue;
 		} else {
 			if (!CheckCondition(Array[i], hex)) {
-				/*  Discard the following (offset, data) pairs. */
+				/* Discard the following (offset, data) pairs */
 				READ_NEXT_PAIR(v1, v2, i);
 				while (v2 != 0xDEAD &&
 				       v2 != 0xCDEF &&
@@ -246,12 +244,13 @@ void ODM_ReadAndConfig_AGC_TAB_1T_8723A(struct dm_odm_t *pDM_Odm)
 					READ_NEXT_PAIR(v1, v2, i);
 				i -= 2; /*  prevent from for-loop += 2 */
 			} else {
-				/*  Configure matched pairs and skip to end of if-else. */
+				/*  Configure matched pairs and skip to
+				    end of if-else. */
 				READ_NEXT_PAIR(v1, v2, i);
 				while (v2 != 0xDEAD &&
 				       v2 != 0xCDEF &&
 				       v2 != 0xCDCD && i < ArrayLen - 2) {
-					odm_ConfigBB_AGC_8723A(pDM_Odm, v1, bMaskDWord, v2);
+					odm_ConfigBB_AGC_8723A(pDM_Odm, v1, v2);
 					READ_NEXT_PAIR(v1, v2, i);
 				}
 				while (v2 != 0xDEAD && i < ArrayLen - 2)
@@ -467,13 +466,12 @@ void ODM_ReadAndConfig_PHY_REG_1T_8723A(struct dm_odm_t *pDM_Odm)
 	u32 hex = 0;
 	u32 i = 0;
 	u8  platform = 0x04;
-	u8  interfaceValue = pDM_Odm->SupportInterface;
 	u8  board = pDM_Odm->BoardType;
 	u32 ArrayLen = sizeof(Array_PHY_REG_1T_8723A)/sizeof(u32);
 	u32 *Array = Array_PHY_REG_1T_8723A;
 
 	hex += board;
-	hex += interfaceValue << 8;
+	hex += ODM_ITRF_USB << 8;
 	hex += platform << 16;
 	hex += 0xFF000000;
 	for (i = 0; i < ArrayLen; i += 2) {
@@ -482,11 +480,11 @@ void ODM_ReadAndConfig_PHY_REG_1T_8723A(struct dm_odm_t *pDM_Odm)
 
 		/*  This (offset, data) pair meets the condition. */
 		if (v1 < 0xCDCDCDCD) {
-			odm_ConfigBB_PHY_8723A(pDM_Odm, v1, bMaskDWord, v2);
+			odm_ConfigBB_PHY_8723A(pDM_Odm, v1, v2);
 			continue;
 		} else {
 			if (!CheckCondition(Array[i], hex)) {
-				/*  Discard the following (offset, data) pairs. */
+				/* Discard the following (offset, data) pairs */
 				READ_NEXT_PAIR(v1, v2, i);
 				while (v2 != 0xDEAD &&
 				       v2 != 0xCDEF &&
@@ -494,12 +492,13 @@ void ODM_ReadAndConfig_PHY_REG_1T_8723A(struct dm_odm_t *pDM_Odm)
 					READ_NEXT_PAIR(v1, v2, i);
 				i -= 2; /*  prevent from for-loop += 2 */
 			} else {
-				/*  Configure matched pairs and skip to end of if-else. */
+				/*  Configure matched pairs and skip to
+				    end of if-else. */
 				READ_NEXT_PAIR(v1, v2, i);
 				while (v2 != 0xDEAD &&
 				       v2 != 0xCDEF &&
 				       v2 != 0xCDCD && i < ArrayLen - 2) {
-					odm_ConfigBB_PHY_8723A(pDM_Odm, v1, bMaskDWord, v2);
+					odm_ConfigBB_PHY_8723A(pDM_Odm, v1, v2);
 					READ_NEXT_PAIR(v1, v2, i);
 				}
 				while (v2 != 0xDEAD && i < ArrayLen - 2)
@@ -520,16 +519,15 @@ static u32 Array_PHY_REG_MP_8723A[] = {
 
 void ODM_ReadAndConfig_PHY_REG_MP_8723A(struct dm_odm_t *pDM_Odm)
 {
-	u32     hex         = 0;
-	u32     i           = 0;
-	u8     platform    = 0x04;
-	u8     interfaceValue   = pDM_Odm->SupportInterface;
-	u8     board       = pDM_Odm->BoardType;
-	u32     ArrayLen    = sizeof(Array_PHY_REG_MP_8723A)/sizeof(u32);
-	u32 *Array       = Array_PHY_REG_MP_8723A;
+	u32 hex = 0;
+	u32 i;
+	u8 platform = 0x04;
+	u8 board = pDM_Odm->BoardType;
+	u32 ArrayLen = sizeof(Array_PHY_REG_MP_8723A)/sizeof(u32);
+	u32 *Array = Array_PHY_REG_MP_8723A;
 
 	hex += board;
-	hex += interfaceValue << 8;
+	hex += ODM_ITRF_USB << 8;
 	hex += platform << 16;
 	hex += 0xFF000000;
 	for (i = 0; i < ArrayLen; i += 2) {
@@ -538,11 +536,11 @@ void ODM_ReadAndConfig_PHY_REG_MP_8723A(struct dm_odm_t *pDM_Odm)
 
 		/*  This (offset, data) pair meets the condition. */
 		if (v1 < 0xCDCDCDCD) {
-			odm_ConfigBB_PHY_8723A(pDM_Odm, v1, bMaskDWord, v2);
+			odm_ConfigBB_PHY_8723A(pDM_Odm, v1, v2);
 			continue;
 		} else {
 			if (!CheckCondition(Array[i], hex)) {
-				/* Discard the following (offset, data) pairs. */
+				/* Discard the following (offset, data) pairs */
 				READ_NEXT_PAIR(v1, v2, i);
 				while (v2 != 0xDEAD &&
 				       v2 != 0xCDEF &&
@@ -550,12 +548,13 @@ void ODM_ReadAndConfig_PHY_REG_MP_8723A(struct dm_odm_t *pDM_Odm)
 					READ_NEXT_PAIR(v1, v2, i);
 				i -= 2; /*  prevent from for-loop += 2 */
 			} else {
-				/* Configure matched pairs and skip to end of if-else. */
+				/* Configure matched pairs and skip to
+				   end of if-else. */
 				READ_NEXT_PAIR(v1, v2, i);
 				while (v2 != 0xDEAD &&
 				       v2 != 0xCDEF &&
 				       v2 != 0xCDCD && i < ArrayLen - 2) {
-					odm_ConfigBB_PHY_8723A(pDM_Odm, v1, bMaskDWord, v2);
+					odm_ConfigBB_PHY_8723A(pDM_Odm, v1, v2);
 					READ_NEXT_PAIR(v1, v2, i);
 				}
 				while (v2 != 0xDEAD && i < ArrayLen - 2)
diff --git a/drivers/staging/rtl8723au/hal/HalHWImg8723A_MAC.c b/drivers/staging/rtl8723au/hal/HalHWImg8723A_MAC.c
index 1207145..93b2d18 100644
--- a/drivers/staging/rtl8723au/hal/HalHWImg8723A_MAC.c
+++ b/drivers/staging/rtl8723au/hal/HalHWImg8723A_MAC.c
@@ -30,12 +30,12 @@ static bool CheckCondition(const u32  Condition, const u32  Hex)
 		return false;
 
 	cond = Condition & 0x0000FF00;
-	cond = cond >> 8;
+	cond >>= 8;
 	if ((_interface & cond) == 0 && cond != 0x07)
 		return false;
 
 	cond = Condition & 0x00FF0000;
-	cond = cond >> 16;
+	cond >>= 16;
 	if ((_platform & cond) == 0 && cond != 0x0F)
 		return false;
 	return true;
@@ -144,13 +144,12 @@ void ODM_ReadAndConfig_MAC_REG_8723A(struct dm_odm_t *pDM_Odm)
 	u32     hex         = 0;
 	u32     i           = 0;
 	u8     platform    = 0x04;
-	u8     interfaceValue   = pDM_Odm->SupportInterface;
 	u8     board       = pDM_Odm->BoardType;
 	u32     ArrayLen    = sizeof(Array_MAC_REG_8723A)/sizeof(u32);
 	u32 *Array       = Array_MAC_REG_8723A;
 
 	hex += board;
-	hex += interfaceValue << 8;
+	hex += ODM_ITRF_USB << 8;
 	hex += platform << 16;
 	hex += 0xFF000000;
 	for (i = 0; i < ArrayLen; i += 2) {
diff --git a/drivers/staging/rtl8723au/hal/HalHWImg8723A_RF.c b/drivers/staging/rtl8723au/hal/HalHWImg8723A_RF.c
index 00480f5..dbf571e 100644
--- a/drivers/staging/rtl8723au/hal/HalHWImg8723A_RF.c
+++ b/drivers/staging/rtl8723au/hal/HalHWImg8723A_RF.c
@@ -30,12 +30,12 @@ static bool CheckCondition(const u32  Condition, const u32  Hex)
 		return false;
 
 	cond = Condition & 0x0000FF00;
-	cond = cond >> 8;
+	cond >>= 8;
 	if ((_interface & cond) == 0 && cond != 0x07)
 		return false;
 
 	cond = Condition & 0x00FF0000;
-	cond = cond >> 16;
+	cond >>= 16;
 	if ((_platform & cond) == 0 && cond != 0x0F)
 		return false;
 	return true;
@@ -214,13 +214,12 @@ void ODM_ReadAndConfig_RadioA_1T_8723A(struct dm_odm_t *pDM_Odm)
 	u32     hex         = 0;
 	u32     i           = 0;
 	u8     platform    = 0x04;
-	u8     interfaceValue   = pDM_Odm->SupportInterface;
 	u8     board       = pDM_Odm->BoardType;
 	u32     ArrayLen    = sizeof(Array_RadioA_1T_8723A)/sizeof(u32);
 	u32 *Array = Array_RadioA_1T_8723A;
 
 	hex += board;
-	hex += interfaceValue << 8;
+	hex += ODM_ITRF_USB << 8;
 	hex += platform << 16;
 	hex += 0xFF000000;
 
diff --git a/drivers/staging/rtl8723au/hal/HalPwrSeqCmd.c b/drivers/staging/rtl8723au/hal/HalPwrSeqCmd.c
index 33777d2..ae090ab 100644
--- a/drivers/staging/rtl8723au/hal/HalPwrSeqCmd.c
+++ b/drivers/staging/rtl8723au/hal/HalPwrSeqCmd.c
@@ -59,17 +59,15 @@ u8 HalPwrSeqCmdParsing23a(struct rtw_adapter *padapter, u8 CutVersion,
 		PwrCfgCmd = PwrSeqCmd[AryIdx];
 
 		RT_TRACE(_module_hal_init_c_, _drv_info_,
-			 ("HalPwrSeqCmdParsing23a: offset(%#x) cut_msk(%#x) "
-			  "fab_msk(%#x) interface_msk(%#x) base(%#x) cmd(%#x) "
-			  "msk(%#x) value(%#x)\n",
-			  GET_PWR_CFG_OFFSET(PwrCfgCmd),
-			  GET_PWR_CFG_CUT_MASK(PwrCfgCmd),
-			  GET_PWR_CFG_FAB_MASK(PwrCfgCmd),
-			  GET_PWR_CFG_INTF_MASK(PwrCfgCmd),
-			  GET_PWR_CFG_BASE(PwrCfgCmd),
-			  GET_PWR_CFG_CMD(PwrCfgCmd),
-			  GET_PWR_CFG_MASK(PwrCfgCmd),
-			  GET_PWR_CFG_VALUE(PwrCfgCmd)));
+			 "HalPwrSeqCmdParsing23a: offset(%#x) cut_msk(%#x) fab_msk(%#x) interface_msk(%#x) base(%#x) cmd(%#x) msk(%#x) value(%#x)\n",
+			 GET_PWR_CFG_OFFSET(PwrCfgCmd),
+			 GET_PWR_CFG_CUT_MASK(PwrCfgCmd),
+			 GET_PWR_CFG_FAB_MASK(PwrCfgCmd),
+			 GET_PWR_CFG_INTF_MASK(PwrCfgCmd),
+			 GET_PWR_CFG_BASE(PwrCfgCmd),
+			 GET_PWR_CFG_CMD(PwrCfgCmd),
+			 GET_PWR_CFG_MASK(PwrCfgCmd),
+			 GET_PWR_CFG_VALUE(PwrCfgCmd));
 
 		/* 2 Only Handle the command whose FAB, CUT, and Interface are
 		   matched */
@@ -79,14 +77,12 @@ u8 HalPwrSeqCmdParsing23a(struct rtw_adapter *padapter, u8 CutVersion,
 			switch (GET_PWR_CFG_CMD(PwrCfgCmd)) {
 			case PWR_CMD_READ:
 				RT_TRACE(_module_hal_init_c_, _drv_info_,
-					 ("HalPwrSeqCmdParsing23a: "
-					  "PWR_CMD_READ\n"));
+					 "HalPwrSeqCmdParsing23a: PWR_CMD_READ\n");
 				break;
 
 			case PWR_CMD_WRITE:
 				RT_TRACE(_module_hal_init_c_, _drv_info_,
-					 ("HalPwrSeqCmdParsing23a: "
-					  "PWR_CMD_WRITE\n"));
+					 "HalPwrSeqCmdParsing23a: PWR_CMD_WRITE\n");
 				offset = GET_PWR_CFG_OFFSET(PwrCfgCmd);
 
 				/*  Read the value from system register */
@@ -102,8 +98,7 @@ u8 HalPwrSeqCmdParsing23a(struct rtw_adapter *padapter, u8 CutVersion,
 
 			case PWR_CMD_POLLING:
 				RT_TRACE(_module_hal_init_c_, _drv_info_,
-					 ("HalPwrSeqCmdParsing23a: "
-					  "PWR_CMD_POLLING\n"));
+					 "HalPwrSeqCmdParsing23a: PWR_CMD_POLLING\n");
 
 				bPollingBit = false;
 				offset = GET_PWR_CFG_OFFSET(PwrCfgCmd);
@@ -131,8 +126,7 @@ u8 HalPwrSeqCmdParsing23a(struct rtw_adapter *padapter, u8 CutVersion,
 
 			case PWR_CMD_DELAY:
 				RT_TRACE(_module_hal_init_c_, _drv_info_,
-					 ("HalPwrSeqCmdParsing23a: "
-					  "PWR_CMD_DELAY\n"));
+					 "HalPwrSeqCmdParsing23a: PWR_CMD_DELAY\n");
 				if (GET_PWR_CFG_VALUE(PwrCfgCmd) ==
 				    PWRSEQ_DELAY_US)
 					udelay(GET_PWR_CFG_OFFSET(PwrCfgCmd));
@@ -145,15 +139,12 @@ u8 HalPwrSeqCmdParsing23a(struct rtw_adapter *padapter, u8 CutVersion,
 				/*  When this command is parsed, end
 				    the process */
 				RT_TRACE(_module_hal_init_c_, _drv_info_,
-					 ("HalPwrSeqCmdParsing23a: "
-					  "PWR_CMD_END\n"));
+					 "HalPwrSeqCmdParsing23a: PWR_CMD_END\n");
 				return true;
-				break;
 
 			default:
 				RT_TRACE(_module_hal_init_c_, _drv_err_,
-					 ("HalPwrSeqCmdParsing23a: "
-					  "Unknown CMD!!\n"));
+					 "HalPwrSeqCmdParsing23a: Unknown CMD!!\n");
 				break;
 			}
 		}
diff --git a/drivers/staging/rtl8723au/hal/hal_com.c b/drivers/staging/rtl8723au/hal/hal_com.c
index bf4cae2..530db57 100644
--- a/drivers/staging/rtl8723au/hal/hal_com.c
+++ b/drivers/staging/rtl8723au/hal/hal_com.c
@@ -22,46 +22,6 @@
 
 #define _HAL_INIT_C_
 
-void dump_chip_info23a(struct hal_version ChipVersion)
-{
-	int cnt = 0;
-	u8 buf[128];
-
-	cnt += sprintf((buf + cnt), "Chip Version Info: CHIP_8723A_");
-
-	cnt += sprintf((buf + cnt), "%s_", IS_NORMAL_CHIP(ChipVersion) ?
-		       "Normal_Chip" : "Test_Chip");
-	cnt += sprintf((buf + cnt), "%s_",
-		       IS_CHIP_VENDOR_TSMC(ChipVersion) ? "TSMC" : "UMC");
-	if (IS_A_CUT(ChipVersion))
-		cnt += sprintf((buf + cnt), "A_CUT_");
-	else if (IS_B_CUT(ChipVersion))
-		cnt += sprintf((buf + cnt), "B_CUT_");
-	else if (IS_C_CUT(ChipVersion))
-		cnt += sprintf((buf + cnt), "C_CUT_");
-	else if (IS_D_CUT(ChipVersion))
-		cnt += sprintf((buf + cnt), "D_CUT_");
-	else if (IS_E_CUT(ChipVersion))
-		cnt += sprintf((buf + cnt), "E_CUT_");
-	else
-		cnt += sprintf((buf + cnt), "UNKNOWN_CUT(%d)_",
-			       ChipVersion.CUTVersion);
-
-	if (IS_1T1R(ChipVersion))
-		cnt += sprintf((buf + cnt), "1T1R_");
-	else if (IS_1T2R(ChipVersion))
-		cnt += sprintf((buf + cnt), "1T2R_");
-	else if (IS_2T2R(ChipVersion))
-		cnt += sprintf((buf + cnt), "2T2R_");
-	else
-		cnt += sprintf((buf + cnt), "UNKNOWN_RFTYPE(%d)_",
-			       ChipVersion.RFType);
-
-	cnt += sprintf((buf + cnt), "RomVer(%d)\n", ChipVersion.ROMVer);
-
-	DBG_8723A("%s", buf);
-}
-
 #define	EEPROM_CHANNEL_PLAN_BY_HW_MASK	0x80
 
 /* return the final channel plan decision */
@@ -231,13 +191,11 @@ void HalSetBrateCfg23a(struct rtw_adapter *padapter, u8 *mBratesOS)
 	rate_index = 0;
 	/*  Set RTS initial rate */
 	while (brate_cfg > 0x1) {
-		brate_cfg = (brate_cfg >> 1);
+		brate_cfg >>= 1;
 		rate_index++;
 	}
 		/*  Ziv - Check */
 	rtl8723au_write8(padapter, REG_INIRTS_RATE_SEL, rate_index);
-
-	return;
 }
 
 static void _OneOutPipeMapping(struct rtw_adapter *pAdapter)
@@ -437,9 +395,6 @@ rtl8723a_set_ampdu_min_space(struct rtw_adapter *padapter, u8 MinSpacingToSet)
 		if (MinSpacingToSet < SecMinSpace)
 			MinSpacingToSet = SecMinSpace;
 
-		/* RT_TRACE(COMP_MLME, DBG_LOUD,
-		   ("Set HW_VAR_AMPDU_MIN_SPACE: %#x\n",
-		   padapter->MgntInfo.MinSpaceCfg)); */
 		MinSpacingToSet |=
 			rtl8723au_read8(padapter, REG_AMPDU_MIN_SPACE) & 0xf8;
 		rtl8723au_write8(padapter, REG_AMPDU_MIN_SPACE,
@@ -479,9 +434,6 @@ void rtl8723a_set_ampdu_factor(struct rtw_adapter *padapter, u8 FactorToSet)
 			rtl8723au_write8(padapter, REG_AGGLEN_LMT + index,
 					 pRegToSet[index]);
 		}
-
-		/* RT_TRACE(COMP_MLME, DBG_LOUD,
-		   ("Set HW_VAR_AMPDU_FACTOR: %#x\n", FactorToSet)); */
 	}
 }
 
@@ -666,14 +618,8 @@ void rtl8723a_cam_empty_entry(struct rtw_adapter *padapter, u8 ucIndex)
 		/*  write content 0 is equall to mark invalid */
 		/* delay_ms(40); */
 		rtl8723au_write32(padapter, WCAMI, ulContent);
-		/* RT_TRACE(COMP_SEC, DBG_LOUD,
-		   ("rtl8723a_cam_empty_entry(): WRITE A4: %lx\n",
-		   ulContent));*/
 		/* delay_ms(40); */
 		rtl8723au_write32(padapter, REG_CAMCMD, ulCommand);
-		/* RT_TRACE(COMP_SEC, DBG_LOUD,
-		   ("rtl8723a_cam_empty_entry(): WRITE A0: %lx\n",
-		   ulCommand));*/
 	}
 }
 
diff --git a/drivers/staging/rtl8723au/hal/odm.c b/drivers/staging/rtl8723au/hal/odm.c
index 5269b46..ec543cf 100644
--- a/drivers/staging/rtl8723au/hal/odm.c
+++ b/drivers/staging/rtl8723au/hal/odm.c
@@ -189,25 +189,16 @@ void odm_DynamicBBPowerSaving23a(struct dm_odm_t *pDM_Odm);
 
 /* END---------BB POWER SAVE----------------------- */
 
-void odm_RefreshRateAdaptiveMask23aCE23a(struct dm_odm_t *pDM_Odm);
-
 void odm_DynamicTxPower23aInit(struct dm_odm_t *pDM_Odm);
 
-void odm_RSSIMonitorCheck23aCE(struct dm_odm_t *pDM_Odm);
-void odm_RSSIMonitorCheck23a(struct dm_odm_t *pDM_Odm);
+static void odm_RSSIMonitorCheck(struct dm_odm_t *pDM_Odm);
 void odm_DynamicTxPower23a(struct dm_odm_t *pDM_Odm);
 
-void odm_RefreshRateAdaptiveMask23a(struct dm_odm_t *pDM_Odm);
-
-void ODM_TXPowerTrackingCheck23a(struct dm_odm_t *pDM_Odm);
+static void odm_RefreshRateAdaptiveMask(struct dm_odm_t *pDM_Odm);
 
 void odm_RateAdaptiveMaskInit23a(struct dm_odm_t *pDM_Odm);
 
-void odm_TXPowerTrackingThermalMeterInit23a(struct dm_odm_t *pDM_Odm);
-
-void odm_TXPowerTrackingInit23a(struct dm_odm_t *pDM_Odm);
-
-void odm_TXPowerTrackingCheckCE23a(struct dm_odm_t *pDM_Odm);
+static void odm_TXPowerTrackingInit(struct dm_odm_t *pDM_Odm);
 
 static void odm_EdcaTurboCheck23a(struct dm_odm_t *pDM_Odm);
 static void ODM_EdcaTurboInit23a(struct dm_odm_t *pDM_Odm);
@@ -216,16 +207,16 @@ static void ODM_EdcaTurboInit23a(struct dm_odm_t *pDM_Odm);
 #define	RxDefaultAnt2		0x569a
 
 bool odm_StaDefAntSel(struct dm_odm_t *pDM_Odm,
- u32 OFDM_Ant1_Cnt,
- u32 OFDM_Ant2_Cnt,
- u32 CCK_Ant1_Cnt,
- u32 CCK_Ant2_Cnt,
- u8 *pDefAnt
+	u32 OFDM_Ant1_Cnt,
+	u32 OFDM_Ant2_Cnt,
+	u32 CCK_Ant1_Cnt,
+	u32 CCK_Ant2_Cnt,
+	u8 *pDefAnt
 	);
 
 void odm_SetRxIdleAnt(struct dm_odm_t *pDM_Odm,
 	u8 Ant,
-   bool   bDualPath
+	bool   bDualPath
 );
 
 /* 3 Export Interface */
@@ -241,7 +232,7 @@ void ODM23a_DMInit(struct dm_odm_t *pDM_Odm)
 
 	odm23a_DynBBPSInit(pDM_Odm);
 	odm_DynamicTxPower23aInit(pDM_Odm);
-	odm_TXPowerTrackingInit23a(pDM_Odm);
+	odm_TXPowerTrackingInit(pDM_Odm);
 	ODM_EdcaTurboInit23a(pDM_Odm);
 }
 
@@ -258,7 +249,7 @@ void ODM_DMWatchdog23a(struct rtw_adapter *adapter)
 	odm_CmnInfoUpdate_Debug23a(pDM_Odm);
 	odm_CommonInfoSelfUpdate(pHalData);
 	odm_FalseAlarmCounterStatistics23a(pDM_Odm);
-	odm_RSSIMonitorCheck23a(pDM_Odm);
+	odm_RSSIMonitorCheck(pDM_Odm);
 
 	/* 8723A or 8189ES platform */
 	/* NeilChen--2012--08--24-- */
@@ -277,14 +268,11 @@ void ODM_DMWatchdog23a(struct rtw_adapter *adapter)
 	if (pwrctrlpriv->bpower_saving)
 		return;
 
-	odm_RefreshRateAdaptiveMask23a(pDM_Odm);
+	odm_RefreshRateAdaptiveMask(pDM_Odm);
 
 	odm_DynamicBBPowerSaving23a(pDM_Odm);
 
-	ODM_TXPowerTrackingCheck23a(pDM_Odm);
 	odm_EdcaTurboCheck23a(pDM_Odm);
-
-	odm_dtc(pDM_Odm);
 }
 
 /*  */
@@ -302,11 +290,6 @@ void ODM_CmnInfoInit23a(struct dm_odm_t *pDM_Odm,
 	/*  */
 	switch	(CmnInfo) {
 	/*  Fixed ODM value. */
-	case	ODM_CMNINFO_PLATFORM:
-		break;
-	case	ODM_CMNINFO_INTERFACE:
-		pDM_Odm->SupportInterface = (u8)Value;
-		break;
 	case	ODM_CMNINFO_MP_TEST_CHIP:
 		pDM_Odm->bIsMPChip = (u8)Value;
 		break;
@@ -319,9 +302,6 @@ void ODM_CmnInfoInit23a(struct dm_odm_t *pDM_Odm,
 	case	ODM_CMNINFO_FAB_VER:
 		pDM_Odm->FabVersion = (u8)Value;
 		break;
-	case	ODM_CMNINFO_RF_TYPE:
-		pDM_Odm->RFType = (u8)Value;
-		break;
 	case	ODM_CMNINFO_BOARD_TYPE:
 		pDM_Odm->BoardType = (u8)Value;
 		break;
@@ -334,9 +314,6 @@ void ODM_CmnInfoInit23a(struct dm_odm_t *pDM_Odm,
 	case	ODM_CMNINFO_EXT_TRSW:
 		pDM_Odm->ExtTRSW = (u8)Value;
 		break;
-	case	ODM_CMNINFO_PATCH_ID:
-		pDM_Odm->PatchID = (u8)Value;
-		break;
 	case	ODM_CMNINFO_BINHCT_TEST:
 		pDM_Odm->bInHctTest = (bool)Value;
 		break;
@@ -351,15 +328,6 @@ void ODM_CmnInfoInit23a(struct dm_odm_t *pDM_Odm,
 		/* do nothing */
 		break;
 	}
-
-	/*  */
-	/*  Tx power tracking BB swing table. */
-	/*  The base index = 12. +((12-n)/2)dB 13~?? = decrease tx pwr by -((n-12)/2)dB */
-	/*  */
-	pDM_Odm->BbSwingIdxOfdm			= 12; /*  Set defalut value as index 12. */
-	pDM_Odm->BbSwingIdxOfdmCurrent	= 12;
-	pDM_Odm->BbSwingFlagOfdm		= false;
-
 }
 
 void ODM_CmnInfoPtrArrayHook23a(struct dm_odm_t *pDM_Odm, enum odm_cmninfo CmnInfo,
@@ -383,9 +351,6 @@ void ODM_CmnInfoUpdate23a(struct dm_odm_t *pDM_Odm, u32 CmnInfo, u64 Value)
 {
 	/*  This init variable may be changed in run time. */
 	switch	(CmnInfo) {
-	case	ODM_CMNINFO_RF_TYPE:
-		pDM_Odm->RFType = (u8)Value;
-		break;
 	case	ODM_CMNINFO_WIFI_DIRECT:
 		pDM_Odm->bWIFI_Direct = (bool)Value;
 		break;
@@ -414,13 +379,18 @@ void ODM_CmnInfoUpdate23a(struct dm_odm_t *pDM_Odm, u32 CmnInfo, u64 Value)
 
 }
 
-void odm_CommonInfoSelfInit23a(struct dm_odm_t *pDM_Odm
-	)
+void odm_CommonInfoSelfInit23a(struct dm_odm_t *pDM_Odm)
 {
-	pDM_Odm->bCckHighPower =
-		(bool) ODM_GetBBReg(pDM_Odm, rFPGA0_XA_HSSIParameter2, BIT(9));
+	u32 val32;
+
+	val32 = rtl8723au_read32(pDM_Odm->Adapter, rFPGA0_XA_HSSIParameter2);
+	if (val32 & BIT(9))
+		pDM_Odm->bCckHighPower = true;
+	else
+		pDM_Odm->bCckHighPower = false;
+		
 	pDM_Odm->RFPathRxEnable =
-		(u8) ODM_GetBBReg(pDM_Odm, rOFDM0_TRxPathEnable, 0x0F);
+		rtl8723au_read32(pDM_Odm->Adapter, rOFDM0_TRxPathEnable) & 0x0F;
 
 	ODM_InitDebugSetting23a(pDM_Odm);
 }
@@ -432,15 +402,6 @@ static void odm_CommonInfoSelfUpdate(struct hal_data_8723a *pHalData)
 	u8 EntryCnt = 0;
 	u8 i;
 
-	if (pHalData->CurrentChannelBW == HT_CHANNEL_WIDTH_40) {
-		if (pHalData->nCur40MhzPrimeSC == 1)
-			pDM_Odm->ControlChannel = pHalData->CurrentChannel - 2;
-		else if (pHalData->nCur40MhzPrimeSC == 2)
-			pDM_Odm->ControlChannel = pHalData->CurrentChannel + 2;
-	} else {
-		pDM_Odm->ControlChannel = pHalData->CurrentChannel;
-	}
-
 	for (i = 0; i < ODM_ASSOCIATE_ENTRY_NUM; i++) {
 		pEntry = pDM_Odm->pODM_StaInfo[i];
 		if (pEntry)
@@ -456,16 +417,13 @@ void odm_CmnInfoInit_Debug23a(struct dm_odm_t *pDM_Odm)
 {
 	ODM_RT_TRACE(pDM_Odm, ODM_COMP_COMMON, ODM_DBG_LOUD, ("odm_CmnInfoInit_Debug23a ==>\n"));
 	ODM_RT_TRACE(pDM_Odm, ODM_COMP_COMMON, ODM_DBG_LOUD, ("SupportAbility = 0x%x\n", pDM_Odm->SupportAbility));
-	ODM_RT_TRACE(pDM_Odm, ODM_COMP_COMMON, ODM_DBG_LOUD, ("SupportInterface =%d\n", pDM_Odm->SupportInterface));
 	ODM_RT_TRACE(pDM_Odm, ODM_COMP_COMMON, ODM_DBG_LOUD, ("SupportICType = 0x%x\n", pDM_Odm->SupportICType));
 	ODM_RT_TRACE(pDM_Odm, ODM_COMP_COMMON, ODM_DBG_LOUD, ("CutVersion =%d\n", pDM_Odm->CutVersion));
 	ODM_RT_TRACE(pDM_Odm, ODM_COMP_COMMON, ODM_DBG_LOUD, ("FabVersion =%d\n", pDM_Odm->FabVersion));
-	ODM_RT_TRACE(pDM_Odm, ODM_COMP_COMMON, ODM_DBG_LOUD, ("RFType =%d\n", pDM_Odm->RFType));
 	ODM_RT_TRACE(pDM_Odm, ODM_COMP_COMMON, ODM_DBG_LOUD, ("BoardType =%d\n", pDM_Odm->BoardType));
 	ODM_RT_TRACE(pDM_Odm, ODM_COMP_COMMON, ODM_DBG_LOUD, ("ExtLNA =%d\n", pDM_Odm->ExtLNA));
 	ODM_RT_TRACE(pDM_Odm, ODM_COMP_COMMON, ODM_DBG_LOUD, ("ExtPA =%d\n", pDM_Odm->ExtPA));
 	ODM_RT_TRACE(pDM_Odm, ODM_COMP_COMMON, ODM_DBG_LOUD, ("ExtTRSW =%d\n", pDM_Odm->ExtTRSW));
-	ODM_RT_TRACE(pDM_Odm, ODM_COMP_COMMON, ODM_DBG_LOUD, ("PatchID =%d\n", pDM_Odm->PatchID));
 	ODM_RT_TRACE(pDM_Odm, ODM_COMP_COMMON, ODM_DBG_LOUD, ("bInHctTest =%d\n", pDM_Odm->bInHctTest));
 	ODM_RT_TRACE(pDM_Odm, ODM_COMP_COMMON, ODM_DBG_LOUD, ("bWIFITest =%d\n", pDM_Odm->bWIFITest));
 	ODM_RT_TRACE(pDM_Odm, ODM_COMP_COMMON, ODM_DBG_LOUD, ("bDualMacSmartConcurrent =%d\n", pDM_Odm->bDualMacSmartConcurrent));
@@ -481,18 +439,19 @@ void odm_CmnInfoUpdate_Debug23a(struct dm_odm_t *pDM_Odm)
 	ODM_RT_TRACE(pDM_Odm, ODM_COMP_COMMON, ODM_DBG_LOUD, ("RSSI_Min =%d\n", pDM_Odm->RSSI_Min));
 }
 
-void ODM_Write_DIG23a(struct dm_odm_t *pDM_Odm,
-	u8 CurrentIGI
-	)
+void ODM_Write_DIG23a(struct dm_odm_t *pDM_Odm,	u8 CurrentIGI)
 {
+	struct rtw_adapter *adapter = pDM_Odm->Adapter;
 	struct dig_t *pDM_DigTable = &pDM_Odm->DM_DigTable;
-
-	ODM_RT_TRACE(pDM_Odm, ODM_COMP_DIG, ODM_DBG_LOUD, ("ODM_REG(IGI_A, pDM_Odm) = 0x%x, ODM_BIT(IGI, pDM_Odm) = 0x%x \n",
-		ODM_REG(IGI_A, pDM_Odm), ODM_BIT(IGI, pDM_Odm)));
+	u32 val32;
 
 	if (pDM_DigTable->CurIGValue != CurrentIGI) {
-		ODM_SetBBReg(pDM_Odm, ODM_REG(IGI_A, pDM_Odm), ODM_BIT(IGI, pDM_Odm), CurrentIGI);
-		ODM_RT_TRACE(pDM_Odm, ODM_COMP_DIG, ODM_DBG_LOUD, ("CurrentIGI(0x%02x). \n", CurrentIGI));
+		val32 = rtl8723au_read32(adapter, ODM_REG_IGI_A_11N);
+		val32 &= ~ODM_BIT_IGI_11N;
+		val32 |= CurrentIGI;
+		rtl8723au_write32(adapter, ODM_REG_IGI_A_11N, val32);
+		ODM_RT_TRACE(pDM_Odm, ODM_COMP_DIG, ODM_DBG_LOUD,
+			     ("CurrentIGI(0x%02x). \n", CurrentIGI));
 		pDM_DigTable->CurIGValue = CurrentIGI;
 	}
 	ODM_RT_TRACE(pDM_Odm, ODM_COMP_DIG, ODM_DBG_LOUD,
@@ -515,11 +474,10 @@ void odm_DIG23abyRSSI_LPS(struct dm_odm_t *pDM_Odm)
 	CurrentIGI = CurrentIGI+RSSI_OFFSET_DIG;
 	bFwCurrentInPSMode = pAdapter->pwrctrlpriv.bFwCurrentInPSMode;
 
-	/* ODM_RT_TRACE(pDM_Odm, ODM_COMP_DIG_LPS, ODM_DBG_LOUD, ("odm_DIG23a() ==>\n")); */
-
 	/*  Using FW PS mode to make IGI */
 	if (bFwCurrentInPSMode) {
-		ODM_RT_TRACE(pDM_Odm, ODM_COMP_DIG, ODM_DBG_LOUD, ("---Neil---odm_DIG23a is in LPS mode\n"));
+		ODM_RT_TRACE(pDM_Odm, ODM_COMP_DIG, ODM_DBG_LOUD,
+			     ("---Neil---odm_DIG23a is in LPS mode\n"));
 		/* Adjust by  FA in LPS MODE */
 		if (pFalseAlmCnt->Cnt_all > DM_DIG_FA_TH2_LPS)
 			CurrentIGI = CurrentIGI+2;
@@ -545,15 +503,17 @@ void odm_DIG23abyRSSI_LPS(struct dm_odm_t *pDM_Odm)
 	 else if (CurrentIGI < RSSI_Lower)
 		CurrentIGI = RSSI_Lower;
 
-	ODM_Write_DIG23a(pDM_Odm, CurrentIGI);/* ODM_Write_DIG23a(pDM_Odm, pDM_DigTable->CurIGValue); */
-
+	ODM_Write_DIG23a(pDM_Odm, CurrentIGI);
 }
 
 void odm_DIG23aInit(struct dm_odm_t *pDM_Odm)
 {
 	struct dig_t *pDM_DigTable = &pDM_Odm->DM_DigTable;
+	u32 val32;
+
+	val32 = rtl8723au_read32(pDM_Odm->Adapter, ODM_REG_IGI_A_11N);
+	pDM_DigTable->CurIGValue = val32 & ODM_BIT_IGI_11N;
 
-	pDM_DigTable->CurIGValue = (u8) ODM_GetBBReg(pDM_Odm, ODM_REG(IGI_A, pDM_Odm), ODM_BIT(IGI, pDM_Odm));
 	pDM_DigTable->RssiLowThresh	= DM_DIG_THRESH_LOW;
 	pDM_DigTable->RssiHighThresh	= DM_DIG_THRESH_HIGH;
 	pDM_DigTable->FALowThresh	= DM_FALSEALARM_THRESH_LOW;
@@ -591,26 +551,22 @@ void odm_DIG23a(struct rtw_adapter *adapter)
 	u8 dm_dig_max, dm_dig_min;
 	u8 CurrentIGI = pDM_DigTable->CurIGValue;
 
-	ODM_RT_TRACE(pDM_Odm, ODM_COMP_DIG, ODM_DBG_LOUD, ("odm_DIG23a() ==>\n"));
-	/* if (!(pDM_Odm->SupportAbility & (ODM_BB_DIG|ODM_BB_FA_CNT))) */
-	if ((!(pDM_Odm->SupportAbility&ODM_BB_DIG)) || (!(pDM_Odm->SupportAbility&ODM_BB_FA_CNT))) {
-		ODM_RT_TRACE(pDM_Odm, ODM_COMP_DIG, ODM_DBG_LOUD,
-			     ("odm_DIG23a() Return: SupportAbility ODM_BB_DIG or ODM_BB_FA_CNT is disabled\n"));
-		return;
-	}
-
+	ODM_RT_TRACE(pDM_Odm, ODM_COMP_DIG, ODM_DBG_LOUD,
+		     ("odm_DIG23a() ==>\n"));
 	if (adapter->mlmepriv.bScanInProcess) {
-		ODM_RT_TRACE(pDM_Odm, ODM_COMP_DIG, ODM_DBG_LOUD, ("odm_DIG23a() Return: In Scan Progress \n"));
+		ODM_RT_TRACE(pDM_Odm, ODM_COMP_DIG, ODM_DBG_LOUD,
+			     ("odm_DIG23a() Return: In Scan Progress \n"));
 		return;
 	}
 
 	DIG_Dynamic_MIN = pDM_DigTable->DIG_Dynamic_MIN_0;
 	FirstConnect = (pDM_Odm->bLinked) && (!pDM_DigTable->bMediaConnect_0);
-	FirstDisConnect = (!pDM_Odm->bLinked) && (pDM_DigTable->bMediaConnect_0);
+	FirstDisConnect = (!pDM_Odm->bLinked) &&
+		(pDM_DigTable->bMediaConnect_0);
 
 	/* 1 Boundary Decision */
 	if ((pDM_Odm->SupportICType & ODM_RTL8723A) &&
-	    ((pDM_Odm->BoardType == ODM_BOARD_HIGHPWR) || pDM_Odm->ExtLNA)) {
+	    (pDM_Odm->BoardType == ODM_BOARD_HIGHPWR || pDM_Odm->ExtLNA)) {
 		dm_dig_max = DM_DIG_MAX_NIC_HP;
 		dm_dig_min = DM_DIG_MIN_NIC_HP;
 		DIG_MaxOfMin = DM_DIG_MAX_AP_HP;
@@ -764,31 +720,29 @@ void odm_DIG23a(struct rtw_adapter *adapter)
 
 void odm_FalseAlarmCounterStatistics23a(struct dm_odm_t *pDM_Odm)
 {
-	u32 ret_value;
+	struct rtw_adapter *adapter = pDM_Odm->Adapter;
 	struct false_alarm_stats *FalseAlmCnt = &pDM_Odm->FalseAlmCnt;
-
-	if (!(pDM_Odm->SupportAbility & ODM_BB_FA_CNT))
-		return;
+	u32 ret_value, val32;
 
 	/* hold ofdm counter */
-	 /* hold page C counter */
-	ODM_SetBBReg(pDM_Odm, ODM_REG_OFDM_FA_HOLDC_11N, BIT(31), 1);
+	/* hold page C counter */
+	val32 = rtl8723au_read32(adapter, ODM_REG_OFDM_FA_HOLDC_11N);
+	val32 |= BIT(31);
+	rtl8723au_write32(adapter, ODM_REG_OFDM_FA_HOLDC_11N, val32);
 	/* hold page D counter */
-	ODM_SetBBReg(pDM_Odm, ODM_REG_OFDM_FA_RSTD_11N, BIT(31), 1);
-	ret_value =
-		ODM_GetBBReg(pDM_Odm, ODM_REG_OFDM_FA_TYPE1_11N, bMaskDWord);
+	val32 = rtl8723au_read32(adapter, ODM_REG_OFDM_FA_RSTD_11N);
+	val32 |= BIT(31);
+	rtl8723au_write32(adapter, ODM_REG_OFDM_FA_RSTD_11N, val32);
+	ret_value = rtl8723au_read32(adapter, ODM_REG_OFDM_FA_TYPE1_11N);
 	FalseAlmCnt->Cnt_Fast_Fsync = (ret_value&0xffff);
-	FalseAlmCnt->Cnt_SB_Search_fail = ((ret_value&0xffff0000)>>16);
-	ret_value =
-		ODM_GetBBReg(pDM_Odm, ODM_REG_OFDM_FA_TYPE2_11N, bMaskDWord);
+	FalseAlmCnt->Cnt_SB_Search_fail = (ret_value & 0xffff0000)>>16;
+	ret_value = rtl8723au_read32(adapter, ODM_REG_OFDM_FA_TYPE2_11N);
 	FalseAlmCnt->Cnt_OFDM_CCA = (ret_value&0xffff);
-	FalseAlmCnt->Cnt_Parity_Fail = ((ret_value&0xffff0000)>>16);
-	ret_value =
-		ODM_GetBBReg(pDM_Odm, ODM_REG_OFDM_FA_TYPE3_11N, bMaskDWord);
+	FalseAlmCnt->Cnt_Parity_Fail = (ret_value & 0xffff0000)>>16;
+	ret_value = rtl8723au_read32(adapter, ODM_REG_OFDM_FA_TYPE3_11N);
 	FalseAlmCnt->Cnt_Rate_Illegal = (ret_value&0xffff);
-	FalseAlmCnt->Cnt_Crc8_fail = ((ret_value&0xffff0000)>>16);
-	ret_value =
-		ODM_GetBBReg(pDM_Odm, ODM_REG_OFDM_FA_TYPE4_11N, bMaskDWord);
+	FalseAlmCnt->Cnt_Crc8_fail = (ret_value & 0xffff0000)>>16;
+	ret_value = rtl8723au_read32(adapter, ODM_REG_OFDM_FA_TYPE4_11N);
 	FalseAlmCnt->Cnt_Mcs_fail = (ret_value&0xffff);
 
 	FalseAlmCnt->Cnt_Ofdm_fail = FalseAlmCnt->Cnt_Parity_Fail +
@@ -798,15 +752,16 @@ void odm_FalseAlarmCounterStatistics23a(struct dm_odm_t *pDM_Odm)
 		FalseAlmCnt->Cnt_Fast_Fsync +
 		FalseAlmCnt->Cnt_SB_Search_fail;
 	/* hold cck counter */
-	ODM_SetBBReg(pDM_Odm, ODM_REG_CCK_FA_RST_11N, BIT(12), 1);
-	ODM_SetBBReg(pDM_Odm, ODM_REG_CCK_FA_RST_11N, BIT(14), 1);
+	val32 = rtl8723au_read32(adapter, ODM_REG_CCK_FA_RST_11N);
+	val32 |= (BIT(12) | BIT(14));
+	rtl8723au_write32(adapter, ODM_REG_CCK_FA_RST_11N, val32);
 
-	ret_value = ODM_GetBBReg(pDM_Odm, ODM_REG_CCK_FA_LSB_11N, bMaskByte0);
+	ret_value = rtl8723au_read32(adapter, ODM_REG_CCK_FA_LSB_11N) & 0xff;
 	FalseAlmCnt->Cnt_Cck_fail = ret_value;
-	ret_value = ODM_GetBBReg(pDM_Odm, ODM_REG_CCK_FA_MSB_11N, bMaskByte3);
-	FalseAlmCnt->Cnt_Cck_fail +=  (ret_value & 0xff) << 8;
+	ret_value = rtl8723au_read32(adapter, ODM_REG_CCK_FA_MSB_11N) >> 16;
+	FalseAlmCnt->Cnt_Cck_fail += (ret_value & 0xff00);
 
-	ret_value = ODM_GetBBReg(pDM_Odm, ODM_REG_CCK_CCA_CNT_11N, bMaskDWord);
+	ret_value = rtl8723au_read32(adapter, ODM_REG_CCK_CCA_CNT_11N);
 	FalseAlmCnt->Cnt_CCK_CCA =
 		((ret_value&0xFF)<<8) | ((ret_value&0xFF00)>>8);
 
@@ -823,26 +778,39 @@ void odm_FalseAlarmCounterStatistics23a(struct dm_odm_t *pDM_Odm)
 
 	if (pDM_Odm->SupportICType >= ODM_RTL8723A) {
 		/* reset false alarm counter registers */
-		ODM_SetBBReg(pDM_Odm, ODM_REG_OFDM_FA_RSTC_11N, BIT(31), 1);
-		ODM_SetBBReg(pDM_Odm, ODM_REG_OFDM_FA_RSTC_11N, BIT(31), 0);
-		ODM_SetBBReg(pDM_Odm, ODM_REG_OFDM_FA_RSTD_11N, BIT(27), 1);
-		ODM_SetBBReg(pDM_Odm, ODM_REG_OFDM_FA_RSTD_11N, BIT(27), 0);
+		val32 = rtl8723au_read32(adapter, ODM_REG_OFDM_FA_RSTC_11N);
+		val32 |= BIT(31);
+		rtl8723au_write32(adapter, ODM_REG_OFDM_FA_RSTC_11N, val32);
+		val32 = rtl8723au_read32(adapter, ODM_REG_OFDM_FA_RSTC_11N);
+		val32 &= ~BIT(31);
+		rtl8723au_write32(adapter, ODM_REG_OFDM_FA_RSTC_11N, val32);
+
+		val32 = rtl8723au_read32(adapter, ODM_REG_OFDM_FA_RSTD_11N);
+		val32 |= BIT(27);
+		rtl8723au_write32(adapter, ODM_REG_OFDM_FA_RSTD_11N, val32);
+		val32 = rtl8723au_read32(adapter, ODM_REG_OFDM_FA_RSTD_11N);
+		val32 &= ~BIT(27);
+		rtl8723au_write32(adapter, ODM_REG_OFDM_FA_RSTD_11N, val32);
+
 		/* update ofdm counter */
 		 /* update page C counter */
-		ODM_SetBBReg(pDM_Odm, ODM_REG_OFDM_FA_HOLDC_11N, BIT(31), 0);
+		val32 = rtl8723au_read32(adapter, ODM_REG_OFDM_FA_HOLDC_11N);
+		val32 &= ~BIT(31);
+		rtl8723au_write32(adapter, ODM_REG_OFDM_FA_HOLDC_11N, val32);
+
 		 /* update page D counter */
-		ODM_SetBBReg(pDM_Odm, ODM_REG_OFDM_FA_RSTD_11N, BIT(31), 0);
+		val32 = rtl8723au_read32(adapter, ODM_REG_OFDM_FA_RSTD_11N);
+		val32 &= ~BIT(31);
+		rtl8723au_write32(adapter, ODM_REG_OFDM_FA_RSTD_11N, val32);
 
 		/* reset CCK CCA counter */
-		ODM_SetBBReg(pDM_Odm, ODM_REG_CCK_FA_RST_11N,
-			     BIT(13) | BIT(12), 0);
-		ODM_SetBBReg(pDM_Odm, ODM_REG_CCK_FA_RST_11N,
-			     BIT(13) | BIT(12), 2);
-		/* reset CCK FA counter */
-		ODM_SetBBReg(pDM_Odm, ODM_REG_CCK_FA_RST_11N,
-			     BIT(15) | BIT(14), 0);
-		ODM_SetBBReg(pDM_Odm, ODM_REG_CCK_FA_RST_11N,
-			     BIT(15) | BIT(14), 2);
+		val32 = rtl8723au_read32(adapter, ODM_REG_CCK_FA_RST_11N);
+		val32 &= ~(BIT(12) | BIT(13) | BIT(14) | BIT(15));
+		rtl8723au_write32(adapter, ODM_REG_CCK_FA_RST_11N, val32);
+
+		val32 = rtl8723au_read32(adapter, ODM_REG_CCK_FA_RST_11N);
+		val32 |= (BIT(13) | BIT(15));
+		rtl8723au_write32(adapter, ODM_REG_CCK_FA_RST_11N, val32);
 	}
 
 	ODM_RT_TRACE(pDM_Odm, ODM_COMP_FA_CNT, ODM_DBG_LOUD,
@@ -859,9 +827,12 @@ void odm_FalseAlarmCounterStatistics23a(struct dm_odm_t *pDM_Odm)
 		     ("Cnt_Crc8_fail =%d, Cnt_Mcs_fail =%d\n",
 		      FalseAlmCnt->Cnt_Crc8_fail, FalseAlmCnt->Cnt_Mcs_fail));
 
-	ODM_RT_TRACE(pDM_Odm, ODM_COMP_FA_CNT, ODM_DBG_LOUD, ("Cnt_Cck_fail =%d\n", FalseAlmCnt->Cnt_Cck_fail));
-	ODM_RT_TRACE(pDM_Odm, ODM_COMP_FA_CNT, ODM_DBG_LOUD, ("Cnt_Ofdm_fail =%d\n", FalseAlmCnt->Cnt_Ofdm_fail));
-	ODM_RT_TRACE(pDM_Odm, ODM_COMP_FA_CNT, ODM_DBG_LOUD, ("Total False Alarm =%d\n", FalseAlmCnt->Cnt_all));
+	ODM_RT_TRACE(pDM_Odm, ODM_COMP_FA_CNT, ODM_DBG_LOUD,
+		     ("Cnt_Cck_fail =%d\n", FalseAlmCnt->Cnt_Cck_fail));
+	ODM_RT_TRACE(pDM_Odm, ODM_COMP_FA_CNT, ODM_DBG_LOUD,
+		     ("Cnt_Ofdm_fail =%d\n", FalseAlmCnt->Cnt_Ofdm_fail));
+	ODM_RT_TRACE(pDM_Odm, ODM_COMP_FA_CNT, ODM_DBG_LOUD,
+		     ("Total False Alarm =%d\n", FalseAlmCnt->Cnt_all));
 }
 
 /* 3 ============================================================ */
@@ -873,16 +844,13 @@ void odm_CCKPacketDetectionThresh23a(struct dm_odm_t *pDM_Odm)
 	struct false_alarm_stats *FalseAlmCnt = &pDM_Odm->FalseAlmCnt;
 	u8 CurCCK_CCAThres;
 
-	if (!(pDM_Odm->SupportAbility & (ODM_BB_CCK_PD|ODM_BB_FA_CNT)))
-		return;
-
 	if (pDM_Odm->ExtLNA)
 		return;
 
 	if (pDM_Odm->bLinked) {
 		if (pDM_Odm->RSSI_Min > 25) {
 			CurCCK_CCAThres = 0xcd;
-		} else if ((pDM_Odm->RSSI_Min <= 25) && (pDM_Odm->RSSI_Min > 10)) {
+		} else if (pDM_Odm->RSSI_Min <= 25 && pDM_Odm->RSSI_Min > 10) {
 			CurCCK_CCAThres = 0x83;
 		} else {
 			if (FalseAlmCnt->Cnt_Cck_fail > 1000)
@@ -905,10 +873,10 @@ void ODM_Write_CCK_CCA_Thres23a(struct dm_odm_t *pDM_Odm, u8 CurCCK_CCAThres)
 	struct dig_t *pDM_DigTable = &pDM_Odm->DM_DigTable;
 
 	if (pDM_DigTable->CurCCK_CCAThres != CurCCK_CCAThres)
-		ODM_Write1Byte(pDM_Odm, ODM_REG(CCK_CCA, pDM_Odm), CurCCK_CCAThres);
+		rtl8723au_write8(pDM_Odm->Adapter, ODM_REG(CCK_CCA, pDM_Odm),
+				 CurCCK_CCAThres);
 	pDM_DigTable->PreCCK_CCAThres = pDM_DigTable->CurCCK_CCAThres;
 	pDM_DigTable->CurCCK_CCAThres = CurCCK_CCAThres;
-
 }
 
 /* 3 ============================================================ */
@@ -934,20 +902,19 @@ void odm_DynamicBBPowerSaving23a(struct dm_odm_t *pDM_Odm)
 void ODM_RF_Saving23a(struct dm_odm_t *pDM_Odm, u8 bForceInNormal)
 {
 	struct dynamic_pwr_sav *pDM_PSTable = &pDM_Odm->DM_PSTable;
+	struct rtw_adapter *adapter = pDM_Odm->Adapter;
+	u32 val32;
 	u8 Rssi_Up_bound = 30;
 	u8 Rssi_Low_bound = 25;
-	if (pDM_Odm->PatchID == 40) { /* RT_CID_819x_FUNAI_TV */
-		Rssi_Up_bound = 50;
-		Rssi_Low_bound = 45;
-	}
 	if (pDM_PSTable->initialize == 0) {
 
-		pDM_PSTable->Reg874 = (ODM_GetBBReg(pDM_Odm, 0x874, bMaskDWord)&0x1CC000)>>14;
+		pDM_PSTable->Reg874 =
+			rtl8723au_read32(adapter, 0x874) & 0x1CC000;
 		pDM_PSTable->RegC70 =
-			(ODM_GetBBReg(pDM_Odm, 0xc70, bMaskDWord) & BIT(3)) >>3;
-		pDM_PSTable->Reg85C = (ODM_GetBBReg(pDM_Odm, 0x85c, bMaskDWord)&0xFF000000)>>24;
-		pDM_PSTable->RegA74 = (ODM_GetBBReg(pDM_Odm, 0xa74, bMaskDWord)&0xF000)>>12;
-		/* Reg818 = PHY_QueryBBReg(pAdapter, 0x818, bMaskDWord); */
+			rtl8723au_read32(adapter, 0xc70) & BIT(3);
+		pDM_PSTable->Reg85C =
+			rtl8723au_read32(adapter, 0x85c) & 0xFF000000;
+		pDM_PSTable->RegA74 = rtl8723au_read32(adapter, 0xa74) & 0xF000;
 		pDM_PSTable->initialize = 1;
 	}
 
@@ -973,26 +940,74 @@ void ODM_RF_Saving23a(struct dm_odm_t *pDM_Odm, u8 bForceInNormal)
 
 	if (pDM_PSTable->PreRFState != pDM_PSTable->CurRFState) {
 		if (pDM_PSTable->CurRFState == RF_Save) {
-			/*  <tynli_note> 8723 RSSI report will be wrong. Set 0x874[5]= 1 when enter BB power saving mode. */
+			/*  <tynli_note> 8723 RSSI report will be wrong.
+			 * Set 0x874[5]= 1 when enter BB power saving mode. */
 			/*  Suggested by SD3 Yu-Nan. 2011.01.20. */
-			if (pDM_Odm->SupportICType == ODM_RTL8723A)
-				ODM_SetBBReg(pDM_Odm, 0x874, BIT(5), 0x1); /* Reg874[5]= 1b'1 */
-			ODM_SetBBReg(pDM_Odm, 0x874, 0x1C0000, 0x2); /* Reg874[20:18]= 3'b010 */
-			ODM_SetBBReg(pDM_Odm, 0xc70, BIT(3), 0); /* RegC70[3]= 1'b0 */
-			ODM_SetBBReg(pDM_Odm, 0x85c, 0xFF000000, 0x63); /* Reg85C[31:24]= 0x63 */
-			ODM_SetBBReg(pDM_Odm, 0x874, 0xC000, 0x2); /* Reg874[15:14]= 2'b10 */
-			ODM_SetBBReg(pDM_Odm, 0xa74, 0xF000, 0x3); /* RegA75[7:4]= 0x3 */
-			ODM_SetBBReg(pDM_Odm, 0x818, BIT(28), 0x0); /* Reg818[28]= 1'b0 */
-			ODM_SetBBReg(pDM_Odm, 0x818, BIT(28), 0x1); /* Reg818[28]= 1'b1 */
+			/* Reg874[5]= 1b'1 */
+			if (pDM_Odm->SupportICType == ODM_RTL8723A) {
+				val32 = rtl8723au_read32(adapter, 0x874);
+				val32 |= BIT(5);
+				rtl8723au_write32(adapter, 0x874, val32);
+			}
+			/* Reg874[20:18]= 3'b010 */
+			val32 = rtl8723au_read32(adapter, 0x874);
+			val32 &= ~(BIT(18) | BIT(20));
+			val32 |= BIT(19);
+			rtl8723au_write32(adapter, 0x874, val32);
+			/* RegC70[3]= 1'b0 */
+			val32 = rtl8723au_read32(adapter, 0xc70);
+			val32 &= ~BIT(3);
+			rtl8723au_write32(adapter, 0xc70, val32);
+			/* Reg85C[31:24]= 0x63 */
+			val32 = rtl8723au_read32(adapter, 0x85c);
+			val32 &= 0x00ffffff;
+			val32 |= 0x63000000;
+			rtl8723au_write32(adapter, 0x85c, val32);
+			/* Reg874[15:14]= 2'b10 */
+			val32 = rtl8723au_read32(adapter, 0x874);
+			val32 &= ~BIT(14);
+			val32 |= BIT(15);
+			rtl8723au_write32(adapter, 0x874, val32);
+			/* RegA75[7:4]= 0x3 */
+			val32 = rtl8723au_read32(adapter, 0xa74);
+			val32 &= ~(BIT(14) | BIT(15));
+			val32 |= (BIT(12) | BIT(13));
+			rtl8723au_write32(adapter, 0xa74, val32);
+			/* Reg818[28]= 1'b0 */
+			val32 = rtl8723au_read32(adapter, 0x818);
+			val32 &= ~BIT(28);
+			rtl8723au_write32(adapter, 0x818, val32);
+			/* Reg818[28]= 1'b1 */
+			val32 = rtl8723au_read32(adapter, 0x818);
+			val32 |= BIT(28);
+			rtl8723au_write32(adapter, 0x818, val32);
 		} else {
-			ODM_SetBBReg(pDM_Odm, 0x874, 0x1CC000, pDM_PSTable->Reg874);
-			ODM_SetBBReg(pDM_Odm, 0xc70, BIT(3), pDM_PSTable->RegC70);
-			ODM_SetBBReg(pDM_Odm, 0x85c, 0xFF000000, pDM_PSTable->Reg85C);
-			ODM_SetBBReg(pDM_Odm, 0xa74, 0xF000, pDM_PSTable->RegA74);
-			ODM_SetBBReg(pDM_Odm, 0x818, BIT(28), 0x0);
-
-			if (pDM_Odm->SupportICType == ODM_RTL8723A)
-				ODM_SetBBReg(pDM_Odm, 0x874, BIT(5), 0x0); /* Reg874[5]= 1b'0 */
+			val32 = rtl8723au_read32(adapter, 0x874);
+			val32 |= pDM_PSTable->Reg874;
+			rtl8723au_write32(adapter, 0x874, val32);
+		
+			val32 = rtl8723au_read32(adapter, 0xc70);
+			val32 |= pDM_PSTable->RegC70;
+			rtl8723au_write32(adapter, 0xc70, val32);
+
+			val32 = rtl8723au_read32(adapter, 0x85c);
+			val32 |= pDM_PSTable->Reg85C;
+			rtl8723au_write32(adapter, 0x85c, val32);
+
+			val32 = rtl8723au_read32(adapter, 0xa74);
+			val32 |= pDM_PSTable->RegA74;
+			rtl8723au_write32(adapter, 0xa74, val32);
+
+			val32 = rtl8723au_read32(adapter, 0x818);
+			val32 &= ~BIT(28);
+			rtl8723au_write32(adapter, 0x818, val32);
+
+			/* Reg874[5]= 1b'0 */
+			if (pDM_Odm->SupportICType == ODM_RTL8723A) {
+				val32 = rtl8723au_read32(adapter, 0x874);
+				val32 &= ~BIT(5);
+				rtl8723au_write32(adapter, 0x874, val32);
+			}
 		}
 		pDM_PSTable->PreRFState = pDM_PSTable->CurRFState;
 	}
@@ -1010,10 +1025,6 @@ void odm_RateAdaptiveMaskInit23a(struct dm_odm_t *pDM_Odm)
 	struct odm_rate_adapt *pOdmRA = &pDM_Odm->RateAdaptive;
 
 	pOdmRA->Type = DM_Type_ByDriver;
-	if (pOdmRA->Type == DM_Type_ByDriver)
-		pDM_Odm->bUseRAMask = true;
-	else
-		pDM_Odm->bUseRAMask = false;
 
 	pOdmRA->RATRState = DM_RATR_STA_INIT;
 	pOdmRA->HighRSSIThresh = 50;
@@ -1057,7 +1068,8 @@ u32 ODM_Get_Rate_Bitmap23a(struct hal_data_8723a *pHalData, u32 macid,
 		break;
 	case (ODM_WM_B|ODM_WM_G|ODM_WM_N24G):
 	case (ODM_WM_A|ODM_WM_B|ODM_WM_G|ODM_WM_N24G):
-		if (pDM_Odm->RFType == ODM_1T2R || pDM_Odm->RFType == ODM_1T1R) {
+		if (pHalData->rf_type == RF_1T2R ||
+		    pHalData->rf_type == RF_1T1R) {
 			if (rssi_level == DM_RATR_STA_HIGH) {
 				rate_bitmap = 0x000f0000;
 			} else if (rssi_level == DM_RATR_STA_MIDDLE) {
@@ -1086,22 +1098,22 @@ u32 ODM_Get_Rate_Bitmap23a(struct hal_data_8723a *pHalData, u32 macid,
 	default:
 		/* case WIRELESS_11_24N: */
 		/* case WIRELESS_11_5N: */
-		if (pDM_Odm->RFType == RF_1T2R)
+		if (pHalData->rf_type == RF_1T2R)
 			rate_bitmap = 0x000fffff;
 		else
 			rate_bitmap = 0x0fffffff;
 		break;
 	}
 
-	/* printk("%s ==> rssi_level:0x%02x, WirelessMode:0x%02x, rate_bitmap:0x%08x \n", __func__, rssi_level, WirelessMode, rate_bitmap); */
-	ODM_RT_TRACE(pDM_Odm, ODM_COMP_RA_MASK, ODM_DBG_LOUD, (" ==> rssi_level:0x%02x, WirelessMode:0x%02x, rate_bitmap:0x%08x \n", rssi_level, WirelessMode, rate_bitmap));
+	ODM_RT_TRACE(pDM_Odm, ODM_COMP_RA_MASK, ODM_DBG_LOUD,
+	(" ==> rssi_level:0x%02x, WirelessMode:0x%02x, rate_bitmap:0x%08x \n",
+	 rssi_level, WirelessMode, rate_bitmap));
 
 	return rate_bitmap;
-
 }
 
 /*-----------------------------------------------------------------------------
- * Function:	odm_RefreshRateAdaptiveMask23a()
+ * Function:	odm_RefreshRateAdaptiveMask()
  *
  * Overview:	Update rate table mask according to rssi
  *
@@ -1116,51 +1128,35 @@ u32 ODM_Get_Rate_Bitmap23a(struct hal_data_8723a *pHalData, u32 macid,
  *05/27/2009	hpfan	Create Version 0.
  *
  *---------------------------------------------------------------------------*/
-void odm_RefreshRateAdaptiveMask23a(struct dm_odm_t *pDM_Odm)
-{
-	if (!(pDM_Odm->SupportAbility & ODM_BB_RA_MASK))
-		return;
-	/*  */
-	/*  2011/09/29 MH In HW integration first stage, we provide 4 different handle to operate */
-	/*  at the same time. In the stage2/3, we need to prive universal interface and merge all */
-	/*  HW dynamic mechanism. */
-	/*  */
-	odm_RefreshRateAdaptiveMask23aCE23a(pDM_Odm);
-}
-
-void odm_RefreshRateAdaptiveMask23aCE23a(struct dm_odm_t *pDM_Odm)
+static void odm_RefreshRateAdaptiveMask(struct dm_odm_t *pDM_Odm)
 {
+	struct rtw_adapter *pAdapter = pDM_Odm->Adapter;
+	u32 smoothed;
 	u8 i;
-	struct rtw_adapter *pAdapter	 =  pDM_Odm->Adapter;
 
 	if (pAdapter->bDriverStopped) {
 		ODM_RT_TRACE(pDM_Odm, ODM_COMP_RA_MASK, ODM_DBG_TRACE,
-			     ("<---- odm_RefreshRateAdaptiveMask23a(): driver is going to unload\n"));
+			     ("<---- %s: driver is going to unload\n",
+			      __func__));
 		return;
 	}
 
-	if (!pDM_Odm->bUseRAMask) {
-		ODM_RT_TRACE(pDM_Odm, ODM_COMP_RA_MASK, ODM_DBG_LOUD,
-			     ("<---- odm_RefreshRateAdaptiveMask23a(): driver does not control rate adaptive mask\n"));
-		return;
-	}
-
-	/* printk("==> %s \n", __func__); */
-
 	for (i = 0; i < ODM_ASSOCIATE_ENTRY_NUM; i++) {
 		struct sta_info *pstat = pDM_Odm->pODM_StaInfo[i];
 		if (pstat) {
-			if (ODM_RAStateCheck23a(pDM_Odm, pstat->rssi_stat.UndecoratedSmoothedPWDB, false, &pstat->rssi_level)) {
-				ODM_RT_TRACE(pDM_Odm, ODM_COMP_RA_MASK, ODM_DBG_LOUD,
+			smoothed = pstat->rssi_stat.UndecoratedSmoothedPWDB;
+			if (ODM_RAStateCheck23a(pDM_Odm, smoothed, false,
+						&pstat->rssi_level)) {
+				ODM_RT_TRACE(pDM_Odm, ODM_COMP_RA_MASK,
+					     ODM_DBG_LOUD,
 					     ("RSSI:%d, RSSI_LEVEL:%d\n",
-					     pstat->rssi_stat.UndecoratedSmoothedPWDB,
-					     pstat->rssi_level));
-				rtw_hal_update_ra_mask23a(pstat, pstat->rssi_level);
+					      smoothed,
+					      pstat->rssi_level));
+				rtw_hal_update_ra_mask23a(pstat,
+							  pstat->rssi_level);
 			}
-
 		}
 	}
-
 }
 
 /*  Return Value: bool */
@@ -1189,7 +1185,8 @@ bool ODM_RAStateCheck23a(struct dm_odm_t *pDM_Odm, s32 RSSI, bool bForceUpdate,
 		LowRSSIThreshForRA += GoUpGap;
 		break;
 	default:
-		ODM_RT_ASSERT(pDM_Odm, false, ("wrong rssi level setting %d !", *pRATRState));
+		ODM_RT_ASSERT(pDM_Odm, false, ("wrong rssi level setting %d !",
+					       *pRATRState));
 		break;
 	}
 
@@ -1227,24 +1224,8 @@ void odm_DynamicTxPower23aInit(struct dm_odm_t *pDM_Odm)
 	pdmpriv->DynamicTxHighPowerLvl = TxHighPwrLevel_Normal;
 }
 
-void odm_RSSIMonitorCheck23a(struct dm_odm_t *pDM_Odm)
-{
-	/*  For AP/ADSL use struct rtl8723a_priv * */
-	/*  For CE/NIC use struct rtw_adapter * */
-
-	if (!(pDM_Odm->SupportAbility & ODM_BB_RSSI_MONITOR))
-		return;
-
-	/*  2011/09/29 MH In HW integration first stage, we provide 4 different handle to operate */
-	/*  at the same time. In the stage2/3, we need to prive universal interface and merge all */
-	/*  HW dynamic mechanism. */
-	odm_RSSIMonitorCheck23aCE(pDM_Odm);
-}	/*  odm_RSSIMonitorCheck23a */
-
 static void
-FindMinimumRSSI(
-	struct rtw_adapter *pAdapter
-	)
+FindMinimumRSSI(struct rtw_adapter *pAdapter)
 {
 	struct hal_data_8723a *pHalData = GET_HAL_DATA(pAdapter);
 	struct dm_priv *pdmpriv = &pHalData->dmpriv;
@@ -1252,21 +1233,22 @@ FindMinimumRSSI(
 
 	/* 1 1.Determine the minimum RSSI */
 
-	if ((!pDM_Odm->bLinked) &&
-	    (pdmpriv->EntryMinUndecoratedSmoothedPWDB == 0))
+	if (!pDM_Odm->bLinked && !pdmpriv->EntryMinUndecoratedSmoothedPWDB)
 		pdmpriv->MinUndecoratedPWDBForDM = 0;
 	else
-		pdmpriv->MinUndecoratedPWDBForDM = pdmpriv->EntryMinUndecoratedSmoothedPWDB;
+		pdmpriv->MinUndecoratedPWDBForDM =
+			pdmpriv->EntryMinUndecoratedSmoothedPWDB;
 }
 
-void odm_RSSIMonitorCheck23aCE(struct dm_odm_t *pDM_Odm)
+static void odm_RSSIMonitorCheck(struct dm_odm_t *pDM_Odm)
 {
 	struct rtw_adapter *Adapter = pDM_Odm->Adapter;
 	struct hal_data_8723a *pHalData = GET_HAL_DATA(Adapter);
 	struct dm_priv *pdmpriv = &pHalData->dmpriv;
-	int	i;
-	int	tmpEntryMaxPWDB = 0, tmpEntryMinPWDB = 0xff;
+	int i;
+	int MaxDB = 0, MinDB = 0xff;
 	u8 sta_cnt = 0;
+	u32 tmpdb;
 	u32 PWDB_rssi[NUM_STA] = {0};/* 0~15]:MACID, [16~31]:PWDB_rssi */
 	struct sta_info *psta;
 
@@ -1276,37 +1258,36 @@ void odm_RSSIMonitorCheck23aCE(struct dm_odm_t *pDM_Odm)
 	for (i = 0; i < ODM_ASSOCIATE_ENTRY_NUM; i++) {
 		psta = pDM_Odm->pODM_StaInfo[i];
 		if (psta) {
-			if (psta->rssi_stat.UndecoratedSmoothedPWDB < tmpEntryMinPWDB)
-				tmpEntryMinPWDB = psta->rssi_stat.UndecoratedSmoothedPWDB;
+			if (psta->rssi_stat.UndecoratedSmoothedPWDB < MinDB)
+				MinDB = psta->rssi_stat.UndecoratedSmoothedPWDB;
 
-			if (psta->rssi_stat.UndecoratedSmoothedPWDB > tmpEntryMaxPWDB)
-				tmpEntryMaxPWDB = psta->rssi_stat.UndecoratedSmoothedPWDB;
+			if (psta->rssi_stat.UndecoratedSmoothedPWDB > MaxDB)
+				MaxDB = psta->rssi_stat.UndecoratedSmoothedPWDB;
 
-			if (psta->rssi_stat.UndecoratedSmoothedPWDB != (-1))
-				PWDB_rssi[sta_cnt++] = (psta->mac_id | (psta->rssi_stat.UndecoratedSmoothedPWDB<<16));
+			if (psta->rssi_stat.UndecoratedSmoothedPWDB != -1) {
+				tmpdb = psta->rssi_stat.UndecoratedSmoothedPWDB;
+				PWDB_rssi[sta_cnt++] = psta->mac_id |
+					(tmpdb << 16);
+			}
 		}
 	}
 
 	for (i = 0; i < sta_cnt; i++) {
-		if (PWDB_rssi[i] != (0)) {
-			if (pHalData->fw_ractrl) /*  Report every sta's RSSI to FW */
-				rtl8723a_set_rssi_cmd(Adapter, (u8 *)&PWDB_rssi[i]);
-		}
+		if (PWDB_rssi[i] != (0))
+			rtl8723a_set_rssi_cmd(Adapter, (u8 *)&PWDB_rssi[i]);
 	}
 
-	if (tmpEntryMaxPWDB != 0)	/*  If associated entry is found */
-		pdmpriv->EntryMaxUndecoratedSmoothedPWDB = tmpEntryMaxPWDB;
-	else
-		pdmpriv->EntryMaxUndecoratedSmoothedPWDB = 0;
+	pdmpriv->EntryMaxUndecoratedSmoothedPWDB = MaxDB;
 
-	if (tmpEntryMinPWDB != 0xff) /*  If associated entry is found */
-		pdmpriv->EntryMinUndecoratedSmoothedPWDB = tmpEntryMinPWDB;
+	if (MinDB != 0xff) /*  If associated entry is found */
+		pdmpriv->EntryMinUndecoratedSmoothedPWDB = MinDB;
 	else
 		pdmpriv->EntryMinUndecoratedSmoothedPWDB = 0;
 
 	FindMinimumRSSI(Adapter);/* get pdmpriv->MinUndecoratedPWDBForDM */
 
-	ODM_CmnInfoUpdate23a(&pHalData->odmpriv, ODM_CMNINFO_RSSI_MIN, pdmpriv->MinUndecoratedPWDBForDM);
+	ODM_CmnInfoUpdate23a(&pHalData->odmpriv, ODM_CMNINFO_RSSI_MIN,
+			     pdmpriv->MinUndecoratedPWDBForDM);
 }
 
 /* endif */
@@ -1314,12 +1295,7 @@ void odm_RSSIMonitorCheck23aCE(struct dm_odm_t *pDM_Odm)
 /* 3 Tx Power Tracking */
 /* 3 ============================================================ */
 
-void odm_TXPowerTrackingInit23a(struct dm_odm_t *pDM_Odm)
-{
-	odm_TXPowerTrackingThermalMeterInit23a(pDM_Odm);
-}
-
-void odm_TXPowerTrackingThermalMeterInit23a(struct dm_odm_t *pDM_Odm)
+static void odm_TXPowerTrackingInit(struct dm_odm_t *pDM_Odm)
 {
 	struct rtw_adapter *Adapter = pDM_Odm->Adapter;
 	struct hal_data_8723a *pHalData = GET_HAL_DATA(Adapter);
@@ -1329,42 +1305,33 @@ void odm_TXPowerTrackingThermalMeterInit23a(struct dm_odm_t *pDM_Odm)
 	pdmpriv->TXPowercount = 0;
 	pdmpriv->bTXPowerTrackingInit = false;
 	pdmpriv->TxPowerTrackControl = true;
-	MSG_8723A("pdmpriv->TxPowerTrackControl = %d\n", pdmpriv->TxPowerTrackControl);
+	MSG_8723A("pdmpriv->TxPowerTrackControl = %d\n",
+		  pdmpriv->TxPowerTrackControl);
 
 	pDM_Odm->RFCalibrateInfo.TxPowerTrackControl = true;
 }
 
-void ODM_TXPowerTrackingCheck23a(struct dm_odm_t *pDM_Odm)
-{
-	/*  For AP/ADSL use struct rtl8723a_priv * */
-	/*  For CE/NIC use struct rtw_adapter * */
-
-	/*  2011/09/29 MH In HW integration first stage, we provide 4 different handle to operate */
-	/*  at the same time. In the stage2/3, we need to prive universal interface and merge all */
-	/*  HW dynamic mechanism. */
-	odm_TXPowerTrackingCheckCE23a(pDM_Odm);
-}
-
-void odm_TXPowerTrackingCheckCE23a(struct dm_odm_t *pDM_Odm)
-{
-}
-
 /* EDCA Turbo */
 static void ODM_EdcaTurboInit23a(struct dm_odm_t *pDM_Odm)
 {
-
 	struct rtw_adapter *Adapter = pDM_Odm->Adapter;
 
 	pDM_Odm->DM_EDCA_Table.bCurrentTurboEDCA = false;
-	pDM_Odm->DM_EDCA_Table.bIsCurRDLState = false;
 	Adapter->recvpriv.bIsAnyNonBEPkts = false;
 
-	ODM_RT_TRACE(pDM_Odm, ODM_COMP_EDCA_TURBO, ODM_DBG_LOUD, ("Orginial VO PARAM: 0x%x\n", ODM_Read4Byte(pDM_Odm, ODM_EDCA_VO_PARAM)));
-	ODM_RT_TRACE(pDM_Odm, ODM_COMP_EDCA_TURBO, ODM_DBG_LOUD, ("Orginial VI PARAM: 0x%x\n", ODM_Read4Byte(pDM_Odm, ODM_EDCA_VI_PARAM)));
-	ODM_RT_TRACE(pDM_Odm, ODM_COMP_EDCA_TURBO, ODM_DBG_LOUD, ("Orginial BE PARAM: 0x%x\n", ODM_Read4Byte(pDM_Odm, ODM_EDCA_BE_PARAM)));
-	ODM_RT_TRACE(pDM_Odm, ODM_COMP_EDCA_TURBO, ODM_DBG_LOUD, ("Orginial BK PARAM: 0x%x\n", ODM_Read4Byte(pDM_Odm, ODM_EDCA_BK_PARAM)));
-
-}	/*  ODM_InitEdcaTurbo */
+	ODM_RT_TRACE(pDM_Odm, ODM_COMP_EDCA_TURBO, ODM_DBG_LOUD,
+		     ("Orginial VO PARAM: 0x%x\n",
+		      rtl8723au_read32(Adapter, ODM_EDCA_VO_PARAM)));
+	ODM_RT_TRACE(pDM_Odm, ODM_COMP_EDCA_TURBO, ODM_DBG_LOUD,
+		     ("Orginial VI PARAM: 0x%x\n",
+		      rtl8723au_read32(Adapter, ODM_EDCA_VI_PARAM)));
+	ODM_RT_TRACE(pDM_Odm, ODM_COMP_EDCA_TURBO, ODM_DBG_LOUD,
+		     ("Orginial BE PARAM: 0x%x\n",
+		      rtl8723au_read32(Adapter, ODM_EDCA_BE_PARAM)));
+	ODM_RT_TRACE(pDM_Odm, ODM_COMP_EDCA_TURBO, ODM_DBG_LOUD,
+		     ("Orginial BK PARAM: 0x%x\n",
+		      rtl8723au_read32(Adapter, ODM_EDCA_BK_PARAM)));
+}
 
 static void odm_EdcaTurboCheck23a(struct dm_odm_t *pDM_Odm)
 {
@@ -1377,19 +1344,18 @@ static void odm_EdcaTurboCheck23a(struct dm_odm_t *pDM_Odm)
 	struct mlme_ext_info *pmlmeinfo = &pmlmeext->mlmext_info;
 	u32 trafficIndex;
 	u32 edca_param;
-	u64 cur_tx_bytes = 0;
-	u64 cur_rx_bytes = 0;
-	u8 bbtchange = false;
+	u64 cur_tx_bytes;
+	u64 cur_rx_bytes;
 
 	/*  For AP/ADSL use struct rtl8723a_priv * */
 	/*  For CE/NIC use struct rtw_adapter * */
 
-	/*  2011/09/29 MH In HW integration first stage, we provide 4 different handle to operate */
-	/*  at the same time. In the stage2/3, we need to prive universal interface and merge all */
-	/*  HW dynamic mechanism. */
-
-	if (!(pDM_Odm->SupportAbility & ODM_MAC_EDCA_TURBO))
-		return;
+	/*
+	 * 2011/09/29 MH In HW integration first stage, we provide 4
+	 * different handle to operate at the same time. In the stage2/3,
+	 * we need to prive universal interface and merge all HW dynamic
+	 * mechanism.
+	 */
 
 	if ((pregpriv->wifi_spec == 1))/*  (pmlmeinfo->HT_enable == 0)) */
 		goto dm_CheckEdcaTurbo_EXIT;
@@ -1401,7 +1367,7 @@ static void odm_EdcaTurboCheck23a(struct dm_odm_t *pDM_Odm)
 		goto dm_CheckEdcaTurbo_EXIT;
 
 	/*  Check if the status needs to be changed. */
-	if ((bbtchange) || (!precvpriv->bIsAnyNonBEPkts)) {
+	if (!precvpriv->bIsAnyNonBEPkts) {
 		cur_tx_bytes = pxmitpriv->tx_bytes - pxmitpriv->last_tx_bytes;
 		cur_rx_bytes = precvpriv->rx_bytes - precvpriv->last_rx_bytes;
 
@@ -1454,29 +1420,37 @@ dm_CheckEdcaTurbo_EXIT:
 	precvpriv->last_rx_bytes = precvpriv->rx_bytes;
 }
 
-u32 GetPSDData(struct dm_odm_t *pDM_Odm, unsigned int point, u8 initial_gain_psd)
+u32 GetPSDData(struct dm_odm_t *pDM_Odm, unsigned int point,
+	       u8 initial_gain_psd)
 {
-	u32 psd_report;
+	struct rtw_adapter *adapter = pDM_Odm->Adapter;
+	u32 psd_report, val32;
 
 	/* Set DCO frequency index, offset = (40MHz/SamplePts)*point */
-	ODM_SetBBReg(pDM_Odm, 0x808, 0x3FF, point);
+	val32 = rtl8723au_read32(adapter, 0x808);
+	val32 &= ~0x3ff;
+	val32 |= (point & 0x3ff);
+	rtl8723au_write32(adapter, 0x808, val32);
 
 	/* Start PSD calculation, Reg808[22]= 0->1 */
-	ODM_SetBBReg(pDM_Odm, 0x808, BIT(22), 1);
+	val32 = rtl8723au_read32(adapter, 0x808);
+	val32 |= BIT(22);
+	rtl8723au_write32(adapter, 0x808, val32);
 	/* Need to wait for HW PSD report */
 	udelay(30);
-	ODM_SetBBReg(pDM_Odm, 0x808, BIT(22), 0);
+	val32 = rtl8723au_read32(adapter, 0x808);
+	val32 &= ~BIT(22);
+	rtl8723au_write32(adapter, 0x808, val32);
 	/* Read PSD report, Reg8B4[15:0] */
-	psd_report = ODM_GetBBReg(pDM_Odm, 0x8B4, bMaskDWord) & 0x0000FFFF;
+	psd_report = rtl8723au_read32(adapter, 0x8B4) & 0x0000FFFF;
 
-	psd_report = (u32)(ConvertTo_dB23a(psd_report))+(u32)(initial_gain_psd-0x1c);
+	psd_report = (u32)(ConvertTo_dB23a(psd_report)) +
+		(u32)(initial_gain_psd-0x1c);
 
 	return psd_report;
 }
 
-u32
-ConvertTo_dB23a(
-	u32 Value)
+u32 ConvertTo_dB23a(u32 Value)
 {
 	u8 i;
 	u8 j;
@@ -1504,7 +1478,8 @@ ConvertTo_dB23a(
 
 /*  */
 /*  Description: */
-/*Set Single/Dual Antenna default setting for products that do not do detection in advance. */
+/* Set Single/Dual Antenna default setting for products that do not
+ * do detection in advance. */
 /*  */
 /*  Added by Joseph, 2012.03.22 */
 /*  */
@@ -1518,18 +1493,13 @@ void ODM_SingleDualAntennaDefaultSetting(struct dm_odm_t *pDM_Odm)
 
 /* 2 8723A ANT DETECT */
 
-static void odm_PHY_SaveAFERegisters(
-	struct dm_odm_t *pDM_Odm,
-	u32 *AFEReg,
-	u32 *AFEBackup,
-	u32 RegisterNum
-	)
+static void odm_PHY_SaveAFERegisters(struct dm_odm_t *pDM_Odm, u32 *AFEReg,
+				     u32 *AFEBackup, u32 RegisterNum)
 {
 	u32 i;
 
-	/* RTPRINT(FINIT, INIT_IQK, ("Save ADDA parameters.\n")); */
 	for (i = 0 ; i < RegisterNum ; i++)
-		AFEBackup[i] = ODM_GetBBReg(pDM_Odm, AFEReg[i], bMaskDWord);
+		AFEBackup[i] = rtl8723au_read32(pDM_Odm->Adapter, AFEReg[i]);
 }
 
 static void odm_PHY_ReloadAFERegisters(struct dm_odm_t *pDM_Odm, u32 *AFEReg,
@@ -1538,7 +1508,7 @@ static void odm_PHY_ReloadAFERegisters(struct dm_odm_t *pDM_Odm, u32 *AFEReg,
 	u32 i;
 
 	for (i = 0 ; i < RegiesterNum; i++)
-		ODM_SetBBReg(pDM_Odm, AFEReg[i], bMaskDWord, AFEBackup[i]);
+		rtl8723au_write32(pDM_Odm->Adapter, AFEReg[i], AFEBackup[i]);
 }
 
 /* 2 8723A ANT DETECT */
@@ -1548,9 +1518,10 @@ static void odm_PHY_ReloadAFERegisters(struct dm_odm_t *pDM_Odm, u32 *AFEReg,
 bool ODM_SingleDualAntennaDetection(struct dm_odm_t *pDM_Odm, u8 mode)
 {
 	struct sw_ant_sw *pDM_SWAT_Table = &pDM_Odm->DM_SWAT_Table;
+	struct rtw_adapter *adapter = pDM_Odm->Adapter;
 	u32 CurrentChannel, RfLoopReg;
 	u8 n;
-	u32 Reg88c, Regc08, Reg874, Regc50;
+	u32 Reg88c, Regc08, Reg874, Regc50, val32;
 	u8 initial_gain = 0x5a;
 	u32 PSD_report_tmp;
 	u32 AntA_report = 0x0, AntB_report = 0x0, AntO_report = 0x0;
@@ -1573,72 +1544,80 @@ bool ODM_SingleDualAntennaDetection(struct dm_odm_t *pDM_Odm, u8 mode)
 		return bResult;
 	/* 1 Backup Current RF/BB Settings */
 
-	CurrentChannel = ODM_GetRFReg(pDM_Odm, RF_PATH_A, ODM_CHANNEL, bRFRegOffsetMask);
+	CurrentChannel = ODM_GetRFReg(pDM_Odm, RF_PATH_A, ODM_CHANNEL,
+				      bRFRegOffsetMask);
 	RfLoopReg = ODM_GetRFReg(pDM_Odm, RF_PATH_A, 0x00, bRFRegOffsetMask);
-	ODM_SetBBReg(pDM_Odm, rFPGA0_XA_RFInterfaceOE, ODM_DPDT, Antenna_A);  /*  change to Antenna A */
+	/*  change to Antenna A */
+	val32 = rtl8723au_read32(adapter, rFPGA0_XA_RFInterfaceOE);
+	val32 &= ~0x300;
+	val32 |= 0x100;		/* Enable antenna A */
+	rtl8723au_write32(adapter, rFPGA0_XA_RFInterfaceOE, val32);
+
 	/*  Step 1: USE IQK to transmitter single tone */
 
 	udelay(10);
 
 	/* Store A Path Register 88c, c08, 874, c50 */
-	Reg88c = ODM_GetBBReg(pDM_Odm, rFPGA0_AnalogParameter4, bMaskDWord);
-	Regc08 = ODM_GetBBReg(pDM_Odm, rOFDM0_TRMuxPar, bMaskDWord);
-	Reg874 = ODM_GetBBReg(pDM_Odm, rFPGA0_XCD_RFInterfaceSW, bMaskDWord);
-	Regc50 = ODM_GetBBReg(pDM_Odm, rOFDM0_XAAGCCore1, bMaskDWord);
+	Reg88c = rtl8723au_read32(adapter, rFPGA0_AnalogParameter4);
+	Regc08 = rtl8723au_read32(adapter, rOFDM0_TRMuxPar);
+	Reg874 = rtl8723au_read32(adapter, rFPGA0_XCD_RFInterfaceSW);
+	Regc50 = rtl8723au_read32(adapter, rOFDM0_XAAGCCore1);
 
 	/*  Store AFE Registers */
 	odm_PHY_SaveAFERegisters(pDM_Odm, AFE_REG_8723A, AFE_Backup, 16);
 
 	/* Set PSD 128 pts */
-	ODM_SetBBReg(pDM_Odm, rFPGA0_PSDFunction, BIT(14) | BIT(15), 0x0);
+	val32 = rtl8723au_read32(adapter, rFPGA0_PSDFunction);
+	val32 &= ~(BIT(14) | BIT(15));
+	rtl8723au_write32(adapter, rFPGA0_PSDFunction, val32);
 
 	/*  To SET CH1 to do */
-	ODM_SetRFReg(pDM_Odm, RF_PATH_A, ODM_CHANNEL, bRFRegOffsetMask, 0x01);     /* Channel 1 */
+	ODM_SetRFReg(pDM_Odm, RF_PATH_A, ODM_CHANNEL, bRFRegOffsetMask, 0x01);
 
 	/*  AFE all on step */
-	ODM_SetBBReg(pDM_Odm, rRx_Wait_CCA, bMaskDWord, 0x6FDB25A4);
-	ODM_SetBBReg(pDM_Odm, rTx_CCK_RFON, bMaskDWord, 0x6FDB25A4);
-	ODM_SetBBReg(pDM_Odm, rTx_CCK_BBON, bMaskDWord, 0x6FDB25A4);
-	ODM_SetBBReg(pDM_Odm, rTx_OFDM_RFON, bMaskDWord, 0x6FDB25A4);
-	ODM_SetBBReg(pDM_Odm, rTx_OFDM_BBON, bMaskDWord, 0x6FDB25A4);
-	ODM_SetBBReg(pDM_Odm, rTx_To_Rx, bMaskDWord, 0x6FDB25A4);
-	ODM_SetBBReg(pDM_Odm, rTx_To_Tx, bMaskDWord, 0x6FDB25A4);
-	ODM_SetBBReg(pDM_Odm, rRx_CCK, bMaskDWord, 0x6FDB25A4);
-	ODM_SetBBReg(pDM_Odm, rRx_OFDM, bMaskDWord, 0x6FDB25A4);
-	ODM_SetBBReg(pDM_Odm, rRx_Wait_RIFS, bMaskDWord, 0x6FDB25A4);
-	ODM_SetBBReg(pDM_Odm, rRx_TO_Rx, bMaskDWord, 0x6FDB25A4);
-	ODM_SetBBReg(pDM_Odm, rStandby, bMaskDWord, 0x6FDB25A4);
-	ODM_SetBBReg(pDM_Odm, rSleep, bMaskDWord, 0x6FDB25A4);
-	ODM_SetBBReg(pDM_Odm, rPMPD_ANAEN, bMaskDWord, 0x6FDB25A4);
-	ODM_SetBBReg(pDM_Odm, rFPGA0_XCD_SwitchControl, bMaskDWord, 0x6FDB25A4);
-	ODM_SetBBReg(pDM_Odm, rBlue_Tooth, bMaskDWord, 0x6FDB25A4);
+	rtl8723au_write32(adapter, rRx_Wait_CCA, 0x6FDB25A4);
+	rtl8723au_write32(adapter, rTx_CCK_RFON, 0x6FDB25A4);
+	rtl8723au_write32(adapter, rTx_CCK_BBON, 0x6FDB25A4);
+	rtl8723au_write32(adapter, rTx_OFDM_RFON, 0x6FDB25A4);
+	rtl8723au_write32(adapter, rTx_OFDM_BBON, 0x6FDB25A4);
+	rtl8723au_write32(adapter, rTx_To_Rx, 0x6FDB25A4);
+	rtl8723au_write32(adapter, rTx_To_Tx, 0x6FDB25A4);
+	rtl8723au_write32(adapter, rRx_CCK, 0x6FDB25A4);
+	rtl8723au_write32(adapter, rRx_OFDM, 0x6FDB25A4);
+	rtl8723au_write32(adapter, rRx_Wait_RIFS, 0x6FDB25A4);
+	rtl8723au_write32(adapter, rRx_TO_Rx, 0x6FDB25A4);
+	rtl8723au_write32(adapter, rStandby, 0x6FDB25A4);
+	rtl8723au_write32(adapter, rSleep, 0x6FDB25A4);
+	rtl8723au_write32(adapter, rPMPD_ANAEN, 0x6FDB25A4);
+	rtl8723au_write32(adapter, rFPGA0_XCD_SwitchControl, 0x6FDB25A4);
+	rtl8723au_write32(adapter, rBlue_Tooth, 0x6FDB25A4);
 
 	/*  3 wire Disable */
-	ODM_SetBBReg(pDM_Odm, rFPGA0_AnalogParameter4, bMaskDWord, 0xCCF000C0);
+	rtl8723au_write32(adapter, rFPGA0_AnalogParameter4, 0xCCF000C0);
 
 	/* BB IQK Setting */
-	ODM_SetBBReg(pDM_Odm, rOFDM0_TRMuxPar, bMaskDWord, 0x000800E4);
-	ODM_SetBBReg(pDM_Odm, rFPGA0_XCD_RFInterfaceSW, bMaskDWord, 0x22208000);
+	rtl8723au_write32(adapter, rOFDM0_TRMuxPar, 0x000800E4);
+	rtl8723au_write32(adapter, rFPGA0_XCD_RFInterfaceSW, 0x22208000);
 
 	/* IQK setting tone@ 4.34Mhz */
-	ODM_SetBBReg(pDM_Odm, rTx_IQK_Tone_A, bMaskDWord, 0x10008C1C);
-	ODM_SetBBReg(pDM_Odm, rTx_IQK, bMaskDWord, 0x01007c00);
+	rtl8723au_write32(adapter, rTx_IQK_Tone_A, 0x10008C1C);
+	rtl8723au_write32(adapter, rTx_IQK, 0x01007c00);
 
 	/* Page B init */
-	ODM_SetBBReg(pDM_Odm, rConfig_AntA, bMaskDWord, 0x00080000);
-	ODM_SetBBReg(pDM_Odm, rConfig_AntA, bMaskDWord, 0x0f600000);
-	ODM_SetBBReg(pDM_Odm, rRx_IQK, bMaskDWord, 0x01004800);
-	ODM_SetBBReg(pDM_Odm, rRx_IQK_Tone_A, bMaskDWord, 0x10008c1f);
-	ODM_SetBBReg(pDM_Odm, rTx_IQK_PI_A, bMaskDWord, 0x82150008);
-	ODM_SetBBReg(pDM_Odm, rRx_IQK_PI_A, bMaskDWord, 0x28150008);
-	ODM_SetBBReg(pDM_Odm, rIQK_AGC_Rsp, bMaskDWord, 0x001028d0);
+	rtl8723au_write32(adapter, rConfig_AntA, 0x00080000);
+	rtl8723au_write32(adapter, rConfig_AntA, 0x0f600000);
+	rtl8723au_write32(adapter, rRx_IQK, 0x01004800);
+	rtl8723au_write32(adapter, rRx_IQK_Tone_A, 0x10008c1f);
+	rtl8723au_write32(adapter, rTx_IQK_PI_A, 0x82150008);
+	rtl8723au_write32(adapter, rRx_IQK_PI_A, 0x28150008);
+	rtl8723au_write32(adapter, rIQK_AGC_Rsp, 0x001028d0);
 
 	/* RF loop Setting */
 	ODM_SetRFReg(pDM_Odm, RF_PATH_A, 0x0, 0xFFFFF, 0x50008);
 
 	/* IQK Single tone start */
-	ODM_SetBBReg(pDM_Odm, rFPGA0_IQK, bMaskDWord, 0x80800000);
-	ODM_SetBBReg(pDM_Odm, rIQK_AGC_Pts, bMaskDWord, 0xf8000000);
+	rtl8723au_write32(adapter, rFPGA0_IQK, 0x80800000);
+	rtl8723au_write32(adapter, rIQK_AGC_Pts, 0xf8000000);
 	udelay(1000);
 	PSD_report_tmp = 0x0;
 
@@ -1650,7 +1629,10 @@ bool ODM_SingleDualAntennaDetection(struct dm_odm_t *pDM_Odm, u8 mode)
 
 	PSD_report_tmp = 0x0;
 
-	ODM_SetBBReg(pDM_Odm, rFPGA0_XA_RFInterfaceOE, 0x300, Antenna_B);  /*  change to Antenna B */
+	val32 = rtl8723au_read32(adapter, rFPGA0_XA_RFInterfaceOE);
+	val32 &= ~0x300;
+	val32 |= 0x200;		/* Enable antenna B */
+	rtl8723au_write32(adapter, rFPGA0_XA_RFInterfaceOE, val32);
 	udelay(10);
 
 	for (n = 0; n < 2; n++) {
@@ -1660,7 +1642,10 @@ bool ODM_SingleDualAntennaDetection(struct dm_odm_t *pDM_Odm, u8 mode)
 	}
 
 	/*  change to open case */
-	ODM_SetBBReg(pDM_Odm, rFPGA0_XA_RFInterfaceOE, 0x300, 0);  /*  change to Ant A and B all open case */
+	/*  change to Ant A and B all open case */
+	val32 = rtl8723au_read32(adapter, rFPGA0_XA_RFInterfaceOE);
+	val32 &= ~0x300;
+	rtl8723au_write32(adapter, rFPGA0_XA_RFInterfaceOE, val32);
 	udelay(10);
 
 	for (n = 0; n < 2; n++) {
@@ -1670,25 +1655,36 @@ bool ODM_SingleDualAntennaDetection(struct dm_odm_t *pDM_Odm, u8 mode)
 	}
 
 	/* Close IQK Single Tone function */
-	ODM_SetBBReg(pDM_Odm, rFPGA0_IQK, bMaskDWord, 0x00000000);
+	rtl8723au_write32(adapter, rFPGA0_IQK, 0x00000000);
 	PSD_report_tmp = 0x0;
 
 	/* 1 Return to antanna A */
-	ODM_SetBBReg(pDM_Odm, rFPGA0_XA_RFInterfaceOE, 0x300, Antenna_A);
-	ODM_SetBBReg(pDM_Odm, rFPGA0_AnalogParameter4, bMaskDWord, Reg88c);
-	ODM_SetBBReg(pDM_Odm, rOFDM0_TRMuxPar, bMaskDWord, Regc08);
-	ODM_SetBBReg(pDM_Odm, rFPGA0_XCD_RFInterfaceSW, bMaskDWord, Reg874);
-	ODM_SetBBReg(pDM_Odm, rOFDM0_XAAGCCore1, 0x7F, 0x40);
-	ODM_SetBBReg(pDM_Odm, rOFDM0_XAAGCCore1, bMaskDWord, Regc50);
-	ODM_SetRFReg(pDM_Odm, RF_PATH_A, RF_CHNLBW, bRFRegOffsetMask, CurrentChannel);
+	val32 = rtl8723au_read32(adapter, rFPGA0_XA_RFInterfaceOE);
+	val32 &= ~0x300;
+	val32 |= 0x100;		/* Enable antenna A */
+	rtl8723au_write32(adapter, rFPGA0_XA_RFInterfaceOE, val32);
+	rtl8723au_write32(adapter, rFPGA0_AnalogParameter4, Reg88c);
+	rtl8723au_write32(adapter, rOFDM0_TRMuxPar, Regc08);
+	rtl8723au_write32(adapter, rFPGA0_XCD_RFInterfaceSW, Reg874);
+	val32 = rtl8723au_read32(adapter, rOFDM0_XAAGCCore1);
+	val32 &= ~0x7f;
+	val32 |= 0x40;
+	rtl8723au_write32(adapter, rOFDM0_XAAGCCore1, val32);
+
+	rtl8723au_write32(adapter, rOFDM0_XAAGCCore1, Regc50);
+	ODM_SetRFReg(pDM_Odm, RF_PATH_A, RF_CHNLBW, bRFRegOffsetMask,
+		     CurrentChannel);
 	ODM_SetRFReg(pDM_Odm, RF_PATH_A, 0x00, bRFRegOffsetMask, RfLoopReg);
 
 	/* Reload AFE Registers */
 	odm_PHY_ReloadAFERegisters(pDM_Odm, AFE_REG_8723A, AFE_Backup, 16);
 
-	ODM_RT_TRACE(pDM_Odm, ODM_COMP_ANT_DIV, ODM_DBG_LOUD, ("psd_report_A[%d]= %d \n", 2416, AntA_report));
-	ODM_RT_TRACE(pDM_Odm, ODM_COMP_ANT_DIV, ODM_DBG_LOUD, ("psd_report_B[%d]= %d \n", 2416, AntB_report));
-	ODM_RT_TRACE(pDM_Odm, ODM_COMP_ANT_DIV, ODM_DBG_LOUD, ("psd_report_O[%d]= %d \n", 2416, AntO_report));
+	ODM_RT_TRACE(pDM_Odm, ODM_COMP_ANT_DIV, ODM_DBG_LOUD,
+		     ("psd_report_A[%d]= %d \n", 2416, AntA_report));
+	ODM_RT_TRACE(pDM_Odm, ODM_COMP_ANT_DIV, ODM_DBG_LOUD,
+		     ("psd_report_B[%d]= %d \n", 2416, AntB_report));
+	ODM_RT_TRACE(pDM_Odm, ODM_COMP_ANT_DIV, ODM_DBG_LOUD,
+		     ("psd_report_O[%d]= %d \n", 2416, AntO_report));
 
 	/* 2 Test Ant B based on Ant A is ON */
 	if (mode == ANTTESTB) {
@@ -1710,30 +1706,33 @@ bool ODM_SingleDualAntennaDetection(struct dm_odm_t *pDM_Odm, u8 mode)
 		if ((AntO_report >= 100) & (AntO_report < 118)) {
 			if (AntA_report > (AntO_report+1)) {
 				pDM_SWAT_Table->ANTA_ON = false;
-				ODM_RT_TRACE(pDM_Odm, ODM_COMP_ANT_DIV, ODM_DBG_LOUD, ("Ant A is OFF"));
+				ODM_RT_TRACE(pDM_Odm, ODM_COMP_ANT_DIV,
+					     ODM_DBG_LOUD, ("Ant A is OFF"));
 			} else {
 				pDM_SWAT_Table->ANTA_ON = true;
-				ODM_RT_TRACE(pDM_Odm, ODM_COMP_ANT_DIV, ODM_DBG_LOUD, ("Ant A is ON"));
+				ODM_RT_TRACE(pDM_Odm, ODM_COMP_ANT_DIV,
+					     ODM_DBG_LOUD, ("Ant A is ON"));
 			}
 
 			if (AntB_report > (AntO_report+2)) {
 				pDM_SWAT_Table->ANTB_ON = false;
-				ODM_RT_TRACE(pDM_Odm, ODM_COMP_ANT_DIV, ODM_DBG_LOUD, ("Ant B is OFF"));
+				ODM_RT_TRACE(pDM_Odm, ODM_COMP_ANT_DIV,
+					     ODM_DBG_LOUD, ("Ant B is OFF"));
 			} else {
 				pDM_SWAT_Table->ANTB_ON = true;
-				ODM_RT_TRACE(pDM_Odm, ODM_COMP_ANT_DIV, ODM_DBG_LOUD, ("Ant B is ON"));
+				ODM_RT_TRACE(pDM_Odm, ODM_COMP_ANT_DIV,
+					     ODM_DBG_LOUD, ("Ant B is ON"));
 			}
 		}
 	} else {
-		ODM_RT_TRACE(pDM_Odm, ODM_COMP_ANT_DIV, ODM_DBG_LOUD, ("ODM_SingleDualAntennaDetection(): Need to check again\n"));
-		pDM_SWAT_Table->ANTA_ON = true; /*  Set Antenna A on as default */
-		pDM_SWAT_Table->ANTB_ON = false; /*  Set Antenna B off as default */
+		ODM_RT_TRACE(pDM_Odm, ODM_COMP_ANT_DIV, ODM_DBG_LOUD,
+		("ODM_SingleDualAntennaDetection(): Need to check again\n"));
+		/*  Set Antenna A on as default */
+		pDM_SWAT_Table->ANTA_ON = true;
+		/*  Set Antenna B off as default */
+		pDM_SWAT_Table->ANTB_ON = false;
 		bResult = false;
 	}
-	return bResult;
-}
 
-/* Justin: According to the current RRSI to adjust Response Frame TX power, 2012/11/05 */
-void odm_dtc(struct dm_odm_t *pDM_Odm)
-{
+	return bResult;
 }
diff --git a/drivers/staging/rtl8723au/hal/odm_HWConfig.c b/drivers/staging/rtl8723au/hal/odm_HWConfig.c
index 33aafa0..7b9799e 100644
--- a/drivers/staging/rtl8723au/hal/odm_HWConfig.c
+++ b/drivers/staging/rtl8723au/hal/odm_HWConfig.c
@@ -33,24 +33,23 @@ static s32 odm_SignalScaleMapping_92CSeries(struct dm_odm_t *pDM_Odm, s32 CurrSi
 {
 	s32 RetSig = 0;
 
-	if ((pDM_Odm->SupportInterface  == ODM_ITRF_USB) || (pDM_Odm->SupportInterface  == ODM_ITRF_SDIO)) {
-		if (CurrSig >= 51 && CurrSig <= 100)
-			RetSig = 100;
-		else if (CurrSig >= 41 && CurrSig <= 50)
-			RetSig = 80 + ((CurrSig - 40)*2);
-		else if (CurrSig >= 31 && CurrSig <= 40)
-			RetSig = 66 + (CurrSig - 30);
-		else if (CurrSig >= 21 && CurrSig <= 30)
-			RetSig = 54 + (CurrSig - 20);
-		else if (CurrSig >= 10 && CurrSig <= 20)
-			RetSig = 42 + (((CurrSig - 10) * 2) / 3);
-		else if (CurrSig >= 5 && CurrSig <= 9)
-			RetSig = 22 + (((CurrSig - 5) * 3) / 2);
-		else if (CurrSig >= 1 && CurrSig <= 4)
-			RetSig = 6 + (((CurrSig - 1) * 3) / 2);
-		else
-			RetSig = CurrSig;
-	}
+	if (CurrSig >= 51 && CurrSig <= 100)
+		RetSig = 100;
+	else if (CurrSig >= 41 && CurrSig <= 50)
+		RetSig = 80 + ((CurrSig - 40)*2);
+	else if (CurrSig >= 31 && CurrSig <= 40)
+		RetSig = 66 + (CurrSig - 30);
+	else if (CurrSig >= 21 && CurrSig <= 30)
+		RetSig = 54 + (CurrSig - 20);
+	else if (CurrSig >= 10 && CurrSig <= 20)
+		RetSig = 42 + (((CurrSig - 10) * 2) / 3);
+	else if (CurrSig >= 5 && CurrSig <= 9)
+		RetSig = 22 + (((CurrSig - 5) * 3) / 2);
+	else if (CurrSig >= 1 && CurrSig <= 4)
+		RetSig = 6 + (((CurrSig - 1) * 3) / 2);
+	else
+		RetSig = CurrSig;
+
 	return RetSig;
 }
 
diff --git a/drivers/staging/rtl8723au/hal/odm_RegConfig8723A.c b/drivers/staging/rtl8723au/hal/odm_RegConfig8723A.c
index 88e0126..342dec3 100644
--- a/drivers/staging/rtl8723au/hal/odm_RegConfig8723A.c
+++ b/drivers/staging/rtl8723au/hal/odm_RegConfig8723A.c
@@ -14,6 +14,7 @@
  ******************************************************************************/
 
 #include "odm_precomp.h"
+#include "usb_ops_linux.h"
 
 void
 odm_ConfigRFReg_8723A(
@@ -43,62 +44,45 @@ odm_ConfigRFReg_8723A(
 	}
 }
 
-void odm_ConfigMAC_8723A(struct dm_odm_t *pDM_Odm,
-	u32		Addr,
-	u8		Data
-	)
+void odm_ConfigMAC_8723A(struct dm_odm_t *pDM_Odm, u32 addr, u8	data)
 {
-	ODM_Write1Byte(pDM_Odm, Addr, Data);
+	rtl8723au_write8(pDM_Odm->Adapter, addr, data);
 	ODM_RT_TRACE(pDM_Odm, ODM_COMP_INIT, ODM_DBG_LOUD,
-		     ("===> ODM_ConfigMACWithHeaderFile23a: [MAC_REG] %08X %08X\n",
-		     Addr, Data));
+		     ("===> %s: [MAC_REG] %08X %08X\n", __func__, addr, data));
 }
 
-void
-odm_ConfigBB_AGC_8723A(
-	struct dm_odm_t *pDM_Odm,
-	u32		Addr,
-	u32		Bitmask,
-	u32		Data
-  )
+void odm_ConfigBB_AGC_8723A(struct dm_odm_t *pDM_Odm, u32 addr, u32 data)
 {
-	ODM_SetBBReg(pDM_Odm, Addr, Bitmask, Data);
+	rtl8723au_write32(pDM_Odm->Adapter, addr, data);
 	/*  Add 1us delay between BB/RF register setting. */
 	udelay(1);
 
 	ODM_RT_TRACE(pDM_Odm, ODM_COMP_INIT, ODM_DBG_LOUD,
-		     ("===> ODM_ConfigBBWithHeaderFile23a: [AGC_TAB] %08X %08X\n",
-		     Addr, Data));
+		     ("===> %s: [AGC_TAB] %08X %08X\n", __func__, addr, data));
 }
 
 void
-odm_ConfigBB_PHY_8723A(
-	struct dm_odm_t *pDM_Odm,
-	u32		Addr,
-	u32		Bitmask,
-	u32		Data
-  )
+odm_ConfigBB_PHY_8723A(struct dm_odm_t *pDM_Odm, u32 addr, u32 data)
 {
-	if (Addr == 0xfe)
+	if (addr == 0xfe)
 		msleep(50);
-	else if (Addr == 0xfd)
+	else if (addr == 0xfd)
 		mdelay(5);
-	else if (Addr == 0xfc)
+	else if (addr == 0xfc)
 		mdelay(1);
-	else if (Addr == 0xfb)
+	else if (addr == 0xfb)
 		udelay(50);
-	else if (Addr == 0xfa)
+	else if (addr == 0xfa)
 		udelay(5);
-	else if (Addr == 0xf9)
+	else if (addr == 0xf9)
 		udelay(1);
-	else if (Addr == 0xa24)
-		pDM_Odm->RFCalibrateInfo.RegA24 = Data;
-	ODM_SetBBReg(pDM_Odm, Addr, Bitmask, Data);
+	else if (addr == 0xa24)
+		pDM_Odm->RFCalibrateInfo.RegA24 = data;
+	rtl8723au_write32(pDM_Odm->Adapter, addr, data);
 
 	/*  Add 1us delay between BB/RF register setting. */
 	udelay(1);
 
 	ODM_RT_TRACE(pDM_Odm, ODM_COMP_INIT, ODM_DBG_LOUD,
-		     ("===> ODM_ConfigBBWithHeaderFile23a: [PHY_REG] %08X %08X\n",
-		     Addr, Data));
+		     ("===> %s: [PHY_REG] %08X %08X\n", __func__, addr, data));
 }
diff --git a/drivers/staging/rtl8723au/hal/odm_debug.c b/drivers/staging/rtl8723au/hal/odm_debug.c
index c912ab8..cb2bdda 100644
--- a/drivers/staging/rtl8723au/hal/odm_debug.c
+++ b/drivers/staging/rtl8723au/hal/odm_debug.c
@@ -22,3 +22,18 @@ void ODM_InitDebugSetting23a(struct dm_odm_t *pDM_Odm)
 }
 
 u32 GlobalDebugLevel23A;
+
+void rt_trace(int comp, int level, const char *fmt, ...)
+{
+	struct va_format vaf;
+	va_list args;
+
+	va_start(args, fmt);
+
+	vaf.fmt = fmt;
+	vaf.va = &args;
+
+	pr_info(DRIVER_PREFIX " [0x%08x,%d] %pV", comp, level, &vaf);
+
+	va_end(args);
+}
diff --git a/drivers/staging/rtl8723au/hal/odm_interface.c b/drivers/staging/rtl8723au/hal/odm_interface.c
index f03f6d4a..d8f6790 100644
--- a/drivers/staging/rtl8723au/hal/odm_interface.c
+++ b/drivers/staging/rtl8723au/hal/odm_interface.c
@@ -23,96 +23,6 @@
 /*  */
 #include <usb_ops_linux.h>
 
-u8 ODM_Read1Byte(struct dm_odm_t *pDM_Odm,
-	u32			RegAddr
-	)
-{
-	struct rtw_adapter *Adapter = pDM_Odm->Adapter;
-
-	return rtl8723au_read8(Adapter, RegAddr);
-}
-
-u16 ODM_Read2Byte(struct dm_odm_t *pDM_Odm, u32 RegAddr)
-{
-	struct rtw_adapter *Adapter = pDM_Odm->Adapter;
-
-	return rtl8723au_read16(Adapter, RegAddr);
-}
-
-u32 ODM_Read4Byte(struct dm_odm_t *pDM_Odm, u32 RegAddr)
-{
-	struct rtw_adapter *Adapter = pDM_Odm->Adapter;
-
-	return rtl8723au_read32(Adapter, RegAddr);
-}
-
-void ODM_Write1Byte(struct dm_odm_t *pDM_Odm, u32 RegAddr, u8 Data)
-{
-	struct rtw_adapter *Adapter = pDM_Odm->Adapter;
-
-	rtl8723au_write8(Adapter, RegAddr, Data);
-}
-
-void ODM_Write2Byte(struct dm_odm_t *pDM_Odm, u32 RegAddr, u16 Data)
-{
-	struct rtw_adapter *Adapter = pDM_Odm->Adapter;
-
-	rtl8723au_write16(Adapter, RegAddr, Data);
-}
-
-void ODM_Write4Byte(struct dm_odm_t *pDM_Odm, u32 RegAddr, u32 Data)
-{
-	struct rtw_adapter *Adapter = pDM_Odm->Adapter;
-
-	rtl8723au_write32(Adapter, RegAddr, Data);
-}
-
-void ODM_SetMACReg(
-	struct dm_odm_t *pDM_Odm,
-	u32		RegAddr,
-	u32		BitMask,
-	u32		Data
-	)
-{
-	struct rtw_adapter *Adapter = pDM_Odm->Adapter;
-
-	PHY_SetBBReg(Adapter, RegAddr, BitMask, Data);
-}
-
-u32 ODM_GetMACReg(
-	struct dm_odm_t *pDM_Odm,
-	u32		RegAddr,
-	u32		BitMask
-	)
-{
-	struct rtw_adapter *Adapter = pDM_Odm->Adapter;
-
-	return PHY_QueryBBReg(Adapter, RegAddr, BitMask);
-}
-
-void ODM_SetBBReg(
-	struct dm_odm_t *pDM_Odm,
-	u32		RegAddr,
-	u32		BitMask,
-	u32		Data
-	)
-{
-	struct rtw_adapter *Adapter = pDM_Odm->Adapter;
-
-	PHY_SetBBReg(Adapter, RegAddr, BitMask, Data);
-}
-
-u32 ODM_GetBBReg(
-	struct dm_odm_t *pDM_Odm,
-	u32		RegAddr,
-	u32		BitMask
-	)
-{
-	struct rtw_adapter *Adapter = pDM_Odm->Adapter;
-
-	return PHY_QueryBBReg(Adapter, RegAddr, BitMask);
-}
-
 void ODM_SetRFReg(
 	struct dm_odm_t *pDM_Odm,
 	enum RF_RADIO_PATH	eRFPath,
diff --git a/drivers/staging/rtl8723au/hal/rtl8723a_bt-coexist.c b/drivers/staging/rtl8723au/hal/rtl8723a_bt-coexist.c
index 73cfddd..cf15f80 100644
--- a/drivers/staging/rtl8723au/hal/rtl8723a_bt-coexist.c
+++ b/drivers/staging/rtl8723au/hal/rtl8723a_bt-coexist.c
@@ -1554,7 +1554,8 @@ static void bthci_ResetBtSec(struct rtw_adapter *padapter, struct bt_security *p
 		pBtSec->bUsedHwEncrypt = true;
 	else
 		pBtSec->bUsedHwEncrypt = false;
-	RT_TRACE(_module_rtl871x_security_c_, _drv_info_, ("%s: bUsedHwEncrypt =%d\n", __func__, pBtSec->bUsedHwEncrypt));
+	RT_TRACE(_module_rtl871x_security_c_, _drv_info_,
+		 "%s: bUsedHwEncrypt =%d\n", __func__, pBtSec->bUsedHwEncrypt);
 
 	pBtSec->RSNIE.Octet = pBtSec->RSNIEBuf;
 }
@@ -3208,7 +3209,7 @@ bthci_CmdDisconnectPhysicalLink(struct rtw_adapter *padapter,
 	pBtDbg->dbgHciInfo.hciCmdCntDisconnectPhyLink++;
 
 	PLH = *((u8 *)pHciCmd->Data);
-	PhysLinkDisconnectReason = (*((u8 *)pHciCmd->Data+1));
+	PhysLinkDisconnectReason = *((u8 *)pHciCmd->Data+1);
 	RTPRINT(FIOCTL, IOCTL_BT_HCICMD, ("HCI_DISCONNECT_PHYSICAL_LINK  PhyHandle = 0x%x, Reason = 0x%x\n",
 		PLH, PhysLinkDisconnectReason));
 
@@ -4518,8 +4519,8 @@ bthci_StateConnecting(struct rtw_adapter *padapter,
 		RTPRINT(FIOCTL, IOCTL_STATE, ("STATE_CMD_MAC_CONNECT_COMPLETE\n"));
 
 		if (pBTInfo->BtAsocEntry[EntryNum].AMPRole == AMP_BTAP_JOINER) {
-			RT_TRACE(_module_rtl871x_security_c_,
-				 _drv_info_, ("StateConnecting \n"));
+			RT_TRACE(_module_rtl871x_security_c_, _drv_info_,
+				 "StateConnecting\n");
 		}
 		break;
 	case STATE_CMD_DISCONNECT_PHY_LINK:
@@ -5796,7 +5797,7 @@ static void
 btdm_1AntUpdateHalRAMask(struct rtw_adapter *padapter, u32 mac_id, u32 filter)
 {
 	u8 init_rate = 0;
-	u8 raid;
+	u8 raid, arg;
 	u32 mask;
 	u8 shortGIrate = false;
 	int supportRateNum = 0;
@@ -5860,26 +5861,16 @@ btdm_1AntUpdateHalRAMask(struct rtw_adapter *padapter, u32 mac_id, u32 filter)
 	mask &= ~filter;
 	init_rate = get_highest_rate_idx23a(mask)&0x3f;
 
-	if (pHalData->fw_ractrl) {
-		u8 arg = 0;
+	arg = mac_id&0x1f;/* MACID */
+	arg |= BIT(7);
+	if (true == shortGIrate)
+		arg |= BIT(5);
 
-		arg = mac_id&0x1f;/* MACID */
-		arg |= BIT(7);
-		if (true == shortGIrate)
-			arg |= BIT(5);
-
-		RTPRINT(FBT, BT_TRACE,
-			("[BTCoex], Update FW RAID entry, MASK = 0x%08x, "
-			 "arg = 0x%02x\n", mask, arg));
-
-		rtl8723a_set_raid_cmd(padapter, mask, arg);
-	} else {
-		if (shortGIrate)
-			init_rate |= BIT(6);
+	RTPRINT(FBT, BT_TRACE,
+		("[BTCoex], Update FW RAID entry, MASK = 0x%08x, "
+		 "arg = 0x%02x\n", mask, arg));
 
-		rtl8723au_write8(padapter, REG_INIDATA_RATE_SEL + mac_id,
-				 init_rate);
-	}
+	rtl8723a_set_raid_cmd(padapter, mask, arg);
 
 	psta->init_rate = init_rate;
 	pdmpriv->INIDATA_RATE[mac_id] = init_rate;
@@ -11206,15 +11197,17 @@ void rtl8723a_BT_init_hal_vars(struct rtw_adapter *padapter)
 	pHalData->bt_coexist.bt_radiosharedtype = pHalData->EEPROMBluetoothRadioShared;
 
 	RT_TRACE(_module_hal_init_c_, _drv_info_,
-		 ("BT Coexistance = 0x%x\n", rtl8723a_BT_coexist(padapter)));
+		 "BT Coexistance = 0x%x\n", rtl8723a_BT_coexist(padapter));
 
 	if (rtl8723a_BT_coexist(padapter)) {
 		if (pHalData->bt_coexist.BT_Ant_Num == Ant_x2) {
 			BTDM_SetBtCoexCurrAntNum(padapter, 2);
-			RT_TRACE(_module_hal_init_c_, _drv_info_, ("BlueTooth BT_Ant_Num = Antx2\n"));
+			RT_TRACE(_module_hal_init_c_, _drv_info_,
+				 "BlueTooth BT_Ant_Num = Antx2\n");
 		} else if (pHalData->bt_coexist.BT_Ant_Num == Ant_x1) {
 			BTDM_SetBtCoexCurrAntNum(padapter, 1);
-			RT_TRACE(_module_hal_init_c_, _drv_info_, ("BlueTooth BT_Ant_Num = Antx1\n"));
+			RT_TRACE(_module_hal_init_c_, _drv_info_,
+				 "BlueTooth BT_Ant_Num = Antx1\n");
 		}
 		pHalData->bt_coexist.bBTBusyTraffic = false;
 		pHalData->bt_coexist.bBTTrafficModeSet = false;
@@ -11223,8 +11216,8 @@ void rtl8723a_BT_init_hal_vars(struct rtw_adapter *padapter)
 		pHalData->bt_coexist.PreviousState = 0;
 
 		RT_TRACE(_module_hal_init_c_, _drv_info_,
-			 ("bt_radiosharedType = 0x%x\n",
-			 pHalData->bt_coexist.bt_radiosharedtype));
+			 "bt_radiosharedType = 0x%x\n",
+			 pHalData->bt_coexist.bt_radiosharedtype);
 	}
 }
 
diff --git a/drivers/staging/rtl8723au/hal/rtl8723a_cmd.c b/drivers/staging/rtl8723au/hal/rtl8723a_cmd.c
index 7b56411..11e1108 100644
--- a/drivers/staging/rtl8723au/hal/rtl8723a_cmd.c
+++ b/drivers/staging/rtl8723au/hal/rtl8723a_cmd.c
@@ -142,32 +142,18 @@ int rtl8723a_set_raid_cmd(struct rtw_adapter *padapter, u32 mask, u8 arg)
 /* arg[5] = Short GI */
 void rtl8723a_add_rateatid(struct rtw_adapter *pAdapter, u32 bitmap, u8 arg, u8 rssi_level)
 {
-	struct hal_data_8723a	*pHalData = GET_HAL_DATA(pAdapter);
-	u8 macid = arg&0x1f;
-	u8 raid = (bitmap>>28) & 0x0f;
+	struct hal_data_8723a *pHalData = GET_HAL_DATA(pAdapter);
+	u8 macid = arg & 0x1f;
+	u32 raid = bitmap & 0xf0000000;
 
 	bitmap &= 0x0fffffff;
 	if (rssi_level != DM_RATR_STA_INIT)
 		bitmap = ODM_Get_Rate_Bitmap23a(pHalData, macid, bitmap,
 						rssi_level);
 
-	bitmap |= ((raid<<28)&0xf0000000);
+	bitmap |= raid;
 
-	if (pHalData->fw_ractrl == true) {
-		rtl8723a_set_raid_cmd(pAdapter, bitmap, arg);
-	} else {
-		u8 init_rate, shortGIrate = false;
-
-		init_rate = get_highest_rate_idx23a(bitmap&0x0fffffff)&0x3f;
-
-		shortGIrate = (arg&BIT(5)) ? true:false;
-
-		if (shortGIrate == true)
-			init_rate |= BIT(6);
-
-		rtl8723au_write8(pAdapter, REG_INIDATA_RATE_SEL + macid,
-				 init_rate);
-	}
+	rtl8723a_set_raid_cmd(pAdapter, bitmap, arg);
 }
 
 void rtl8723a_set_FwPwrMode_cmd(struct rtw_adapter *padapter, u8 Mode)
@@ -183,10 +169,8 @@ void rtl8723a_set_FwPwrMode_cmd(struct rtw_adapter *padapter, u8 Mode)
 	    prevent conficting setting in Fw power */
 	/*  saving sequence. 2010.06.07. Added by tynli.
 	    Suggested by SD3 yschang. */
-	if ((Mode != PS_MODE_ACTIVE) &&
-	    (!IS_92C_SERIAL(pHalData->VersionID))) {
+	if (Mode != PS_MODE_ACTIVE && pHalData->rf_type != RF_2T2R)
 		ODM_RF_Saving23a(&pHalData->odmpriv, true);
-	}
 
 	H2CSetPwrMode.Mode = Mode;
 	H2CSetPwrMode.SmartPS = pwrpriv->smart_ps;
diff --git a/drivers/staging/rtl8723au/hal/rtl8723a_dm.c b/drivers/staging/rtl8723au/hal/rtl8723a_dm.c
index fa826b0..1e831f2 100644
--- a/drivers/staging/rtl8723au/hal/rtl8723a_dm.c
+++ b/drivers/staging/rtl8723au/hal/rtl8723a_dm.c
@@ -94,8 +94,6 @@ void rtl8723a_init_dm_priv(struct rtw_adapter *Adapter)
 	memset(pDM_Odm, 0, sizeof(*pDM_Odm));
 
 	pDM_Odm->Adapter = Adapter;
-	ODM_CmnInfoInit23a(pDM_Odm, ODM_CMNINFO_PLATFORM, 0x04);
-	ODM_CmnInfoInit23a(pDM_Odm, ODM_CMNINFO_INTERFACE, RTW_USB);/* RTL871X_HCI_TYPE */
 
 	ODM_CmnInfoInit23a(pDM_Odm, ODM_CMNINFO_IC_TYPE, ODM_RTL8723A);
 
@@ -119,15 +117,7 @@ void rtl8723a_init_dm_priv(struct rtw_adapter *Adapter)
 		ODM_CmnInfoInit23a(pDM_Odm, ODM_CMNINFO_EXT_LNA, true);
 		ODM_CmnInfoInit23a(pDM_Odm, ODM_CMNINFO_EXT_PA, true);
 	}
-	ODM_CmnInfoInit23a(pDM_Odm, ODM_CMNINFO_PATCH_ID, pHalData->CustomerID);
 	ODM_CmnInfoInit23a(pDM_Odm, ODM_CMNINFO_BWIFI_TEST, Adapter->registrypriv.wifi_spec);
-
-	if (pHalData->rf_type == RF_1T1R)
-		ODM_CmnInfoUpdate23a(pDM_Odm, ODM_CMNINFO_RF_TYPE, ODM_1T1R);
-	else if (pHalData->rf_type == RF_2T2R)
-		ODM_CmnInfoUpdate23a(pDM_Odm, ODM_CMNINFO_RF_TYPE, ODM_2T2R);
-	else if (pHalData->rf_type == RF_1T2R)
-		ODM_CmnInfoUpdate23a(pDM_Odm, ODM_CMNINFO_RF_TYPE, ODM_1T2R);
 }
 
 static void Update_ODM_ComInfo_8723a(struct rtw_adapter *Adapter)
@@ -136,16 +126,7 @@ static void Update_ODM_ComInfo_8723a(struct rtw_adapter *Adapter)
 	struct dm_odm_t *pDM_Odm = &pHalData->odmpriv;
 	struct dm_priv	*pdmpriv = &pHalData->dmpriv;
 	int i;
-	pdmpriv->InitODMFlag =	ODM_BB_DIG		|
-				ODM_BB_RA_MASK		|
-				ODM_BB_DYNAMIC_TXPWR	|
-				ODM_BB_FA_CNT		|
-				ODM_BB_RSSI_MONITOR	|
-				ODM_BB_CCK_PD		|
-				ODM_BB_PWR_SAVE		|
-				ODM_MAC_EDCA_TURBO	|
-				ODM_RF_TX_PWR_TRACK	|
-				ODM_RF_CALIBRATION;
+	pdmpriv->InitODMFlag = 0;
 	/*  Pointer reference */
 	rtl8723a_odm_support_ability_set(Adapter, DYNAMIC_ALL_FUNC_ENABLE);
 
diff --git a/drivers/staging/rtl8723au/hal/rtl8723a_hal_init.c b/drivers/staging/rtl8723au/hal/rtl8723a_hal_init.c
index a5eadd4..04d0183 100644
--- a/drivers/staging/rtl8723au/hal/rtl8723a_hal_init.c
+++ b/drivers/staging/rtl8723au/hal/rtl8723a_hal_init.c
@@ -95,7 +95,7 @@ static int _WriteFW(struct rtw_adapter *padapter, void *buffer, u32 size)
 			goto exit;
 	}
 	RT_TRACE(_module_hal_init_c_, _drv_info_,
-		 ("_WriteFW Done- for Normal chip.\n"));
+		 "_WriteFW Done- for Normal chip.\n");
 
 exit:
 	return ret;
@@ -115,13 +115,13 @@ static int _FWFreeToGo(struct rtw_adapter *padapter)
 
 	if (counter >= POLLING_READY_TIMEOUT_COUNT) {
 		RT_TRACE(_module_hal_init_c_, _drv_err_,
-			 ("%s: chksum report fail! REG_MCUFWDL:0x%08x\n",
-			  __func__, value32));
+			 "%s: chksum report fail! REG_MCUFWDL:0x%08x\n",
+			 __func__, value32);
 		return _FAIL;
 	}
 	RT_TRACE(_module_hal_init_c_, _drv_info_,
-		 ("%s: Checksum report OK! REG_MCUFWDL:0x%08x\n", __func__,
-		  value32));
+		 "%s: Checksum report OK! REG_MCUFWDL:0x%08x\n", __func__,
+		 value32);
 
 	value32 = rtl8723au_read32(padapter, REG_MCUFWDL);
 	value32 |= MCUFWDL_RDY;
@@ -134,17 +134,16 @@ static int _FWFreeToGo(struct rtw_adapter *padapter)
 		value32 = rtl8723au_read32(padapter, REG_MCUFWDL);
 		if (value32 & WINTINI_RDY) {
 			RT_TRACE(_module_hal_init_c_, _drv_info_,
-				 ("%s: Polling FW ready success!! "
-				  "REG_MCUFWDL:0x%08x\n",
-				  __func__, value32));
+				 "%s: Polling FW ready success!! REG_MCUFWDL:0x%08x\n",
+				 __func__, value32);
 			return _SUCCESS;
 		}
 		udelay(5);
 	} while (counter++ < POLLING_READY_TIMEOUT_COUNT);
 
 	RT_TRACE(_module_hal_init_c_, _drv_err_,
-		 ("%s: Polling FW ready fail!! REG_MCUFWDL:0x%08x\n",
-		  __func__, value32));
+		 "%s: Polling FW ready fail!! REG_MCUFWDL:0x%08x\n",
+		 __func__, value32);
 	return _FAIL;
 }
 
@@ -173,8 +172,8 @@ void rtl8723a_FirmwareSelfReset(struct rtw_adapter *padapter)
 			u1bTmp = rtl8723au_read8(padapter, REG_SYS_FUNC_EN + 1);
 		}
 		RT_TRACE(_module_hal_init_c_, _drv_info_,
-			 ("-%s: 8051 reset success (%d)\n", __func__,
-			  Delay));
+			 "-%s: 8051 reset success (%d)\n", __func__,
+			 Delay);
 
 		if ((Delay == 0)) {
 			/* force firmware reset */
@@ -206,13 +205,12 @@ int rtl8723a_FirmwareDownload(struct rtw_adapter *padapter)
 	int fw_size;
 	static int log_version;
 
-	RT_TRACE(_module_hal_init_c_, _drv_info_, ("+%s\n", __func__));
+	RT_TRACE(_module_hal_init_c_, _drv_info_, "+%s\n", __func__);
 
 	if (IS_8723A_A_CUT(pHalData->VersionID)) {
 		fw_name = "rtlwifi/rtl8723aufw_A.bin";
 		RT_TRACE(_module_hal_init_c_, _drv_info_,
-			 ("rtl8723a_FirmwareDownload: R8723FwImageArray_UMC "
-			  "for RTL8723A A CUT\n"));
+			 "rtl8723a_FirmwareDownload: R8723FwImageArray_UMC for RTL8723A A CUT\n");
 	} else if (IS_8723A_B_CUT(pHalData->VersionID)) {
 		/*  WLAN Fw. */
 		if (padapter->registrypriv.wifi_spec == 1) {
@@ -234,7 +232,7 @@ int rtl8723a_FirmwareDownload(struct rtw_adapter *padapter)
 		/*  <Roger_TODO> We should download proper RAM Code here
 		    to match the ROM code. */
 		RT_TRACE(_module_hal_init_c_, _drv_err_,
-			 ("%s: unknow version!\n", __func__));
+			 "%s: unknown version!\n", __func__);
 		rtStatus = _FAIL;
 		goto Exit;
 	}
@@ -319,11 +317,11 @@ int rtl8723a_FirmwareDownload(struct rtw_adapter *padapter)
 	rtStatus = _FWFreeToGo(padapter);
 	if (_SUCCESS != rtStatus) {
 		RT_TRACE(_module_hal_init_c_, _drv_err_,
-			 ("DL Firmware failed!\n"));
+			 "DL Firmware failed!\n");
 		goto Exit;
 	}
 	RT_TRACE(_module_hal_init_c_, _drv_info_,
-		 ("Firmware is ready to run!\n"));
+		 "Firmware is ready to run!\n");
 
 Exit:
 	kfree(firmware_buf);
@@ -424,15 +422,14 @@ hal_ReadEFuse_WiFi(struct rtw_adapter *padapter,
 			offset = GET_HDR_OFFSET_2_0(efuseHeader);
 
 			ReadEFuseByte23a(padapter, eFuse_Addr++, &efuseExtHdr);
-			if (ALL_WORDS_DISABLED(efuseExtHdr)) {
+			if (ALL_WORDS_DISABLED(efuseExtHdr))
 				continue;
-			}
 
 			offset |= ((efuseExtHdr & 0xF0) >> 1);
-			wden = (efuseExtHdr & 0x0F);
+			wden = efuseExtHdr & 0x0F;
 		} else {
-			offset = ((efuseHeader >> 4) & 0x0f);
-			wden = (efuseHeader & 0x0f);
+			offset = (efuseHeader >> 4) & 0x0f;
+			wden = efuseHeader & 0x0f;
 		}
 
 		if (offset < EFUSE_MAX_SECTION_8723A) {
@@ -524,15 +521,14 @@ hal_ReadEFuse_BT(struct rtw_adapter *padapter,
 
 				ReadEFuseByte23a(padapter, eFuse_Addr++,
 					      &efuseExtHdr);
-				if (ALL_WORDS_DISABLED(efuseExtHdr)) {
+				if (ALL_WORDS_DISABLED(efuseExtHdr))
 					continue;
-				}
 
 				offset |= ((efuseExtHdr & 0xF0) >> 1);
-				wden = (efuseExtHdr & 0x0F);
+				wden = efuseExtHdr & 0x0F;
 			} else {
-				offset = ((efuseHeader >> 4) & 0x0f);
-				wden = (efuseHeader & 0x0f);
+				offset = (efuseHeader >> 4) & 0x0f;
+				wden = efuseHeader & 0x0f;
 			}
 
 			if (offset < EFUSE_BT_MAX_SECTION) {
@@ -630,9 +626,8 @@ u16 rtl8723a_EfuseGetCurrentSize_WiFi(struct rtw_adapter *padapter)
 			hoffset = GET_HDR_OFFSET_2_0(efuse_data);
 			efuse_addr++;
 			efuse_OneByteRead23a(padapter, efuse_addr, &efuse_data);
-			if (ALL_WORDS_DISABLED(efuse_data)) {
+			if (ALL_WORDS_DISABLED(efuse_data))
 				continue;
-			}
 
 			hoffset |= ((efuse_data & 0xF0) >> 1);
 			hworden = efuse_data & 0x0F;
@@ -721,9 +716,8 @@ u16 rtl8723a_EfuseGetCurrentSize_BT(struct rtw_adapter *padapter)
 		}
 
 		/*  Check if we need to check next bank efuse */
-		if (efuse_addr < retU2) {
+		if (efuse_addr < retU2)
 			break;	/*  don't need to check next bank. */
-		}
 	}
 
 	retU2 = ((bank - 1) * EFUSE_BT_REAL_BANK_CONTENT_LEN) + efuse_addr;
@@ -744,7 +738,7 @@ void rtl8723a_read_chip_version(struct rtw_adapter *padapter)
 	value32 = rtl8723au_read32(padapter, REG_SYS_CFG);
 	ChipVersion.ICType = CHIP_8723A;
 	ChipVersion.ChipType = ((value32 & RTL_ID) ? TEST_CHIP : NORMAL_CHIP);
-	ChipVersion.RFType = RF_TYPE_1T1R;
+	pHalData->rf_type = RF_1T1R;
 	ChipVersion.VendorType =
 		((value32 & VENDOR_ID) ? CHIP_VENDOR_UMC : CHIP_VENDOR_TSMC);
 	ChipVersion.CUTVersion = (value32 & CHIP_VER_RTL_MASK) >> CHIP_VER_RTL_SHIFT;	/*  IC version (CUT) */
@@ -755,7 +749,7 @@ void rtl8723a_read_chip_version(struct rtw_adapter *padapter)
 
 	value32 = rtl8723au_read32(padapter, REG_GPIO_OUTSTS);
 	/*  ROM code version. */
-	ChipVersion.ROMVer = ((value32 & RF_RL_ID) >> 20);
+	ChipVersion.ROMVer = (value32 & RF_RL_ID) >> 20;
 
 	/*  For multi-function consideration. Added by Roger, 2010.10.06. */
 	pHalData->MultiFunc = RT_MULTI_FUNC_NONE;
@@ -768,16 +762,8 @@ void rtl8723a_read_chip_version(struct rtw_adapter *padapter)
 	pHalData->PolarityCtl =
 		((value32 & WL_HWPDN_SL) ? RT_POLARITY_HIGH_ACT :
 		 RT_POLARITY_LOW_ACT);
-	dump_chip_info23a(ChipVersion);
 	pHalData->VersionID = ChipVersion;
 
-	if (IS_1T2R(ChipVersion))
-		pHalData->rf_type = RF_1T2R;
-	else if (IS_2T2R(ChipVersion))
-		pHalData->rf_type = RF_2T2R;
-	else
-		pHalData->rf_type = RF_1T1R;
-
 	MSG_8723A("RF_Type is %x!!\n", pHalData->rf_type);
 }
 
@@ -831,7 +817,7 @@ static void ResumeTxBeacon(struct rtw_adapter *padapter)
 	    we record the value */
 	/*  which should be read from register to a global variable. */
 
-	RT_TRACE(_module_hci_hal_init_c_, _drv_info_, ("+ResumeTxBeacon\n"));
+	RT_TRACE(_module_hci_hal_init_c_, _drv_info_, "+ResumeTxBeacon\n");
 
 	pHalData->RegFwHwTxQCtrl |= BIT(6);
 	rtl8723au_write8(padapter, REG_FWHW_TXQ_CTRL + 2,
@@ -849,7 +835,7 @@ static void StopTxBeacon(struct rtw_adapter *padapter)
 	    we record the value */
 	/*  which should be read from register to a global variable. */
 
-	RT_TRACE(_module_hci_hal_init_c_, _drv_info_, ("+StopTxBeacon\n"));
+	RT_TRACE(_module_hci_hal_init_c_, _drv_info_, "+StopTxBeacon\n");
 
 	pHalData->RegFwHwTxQCtrl &= ~BIT(6);
 	rtl8723au_write8(padapter, REG_FWHW_TXQ_CTRL + 2,
@@ -995,7 +981,7 @@ int c2h_handler_8723a(struct rtw_adapter *padapter, struct c2h_evt_hdr *c2h_evt)
 	switch (c2h_evt->id) {
 	case C2H_DBG:
 		RT_TRACE(_module_hal_init_c_, _drv_info_,
-			 ("C2HCommandHandler: %s\n", c2h_evt->payload));
+			 "C2HCommandHandler: %s\n", c2h_evt->payload);
 		break;
 
 	case C2H_CCX_TX_RPT:
@@ -1005,22 +991,22 @@ int c2h_handler_8723a(struct rtw_adapter *padapter, struct c2h_evt_hdr *c2h_evt)
 		break;
 	case C2H_HW_INFO_EXCH:
 		RT_TRACE(_module_hal_init_c_, _drv_info_,
-			 ("[BT], C2H_HW_INFO_EXCH\n"));
+			 "[BT], C2H_HW_INFO_EXCH\n");
 		for (i = 0; i < c2h_evt->plen; i++) {
 			RT_TRACE(_module_hal_init_c_, _drv_info_,
-				 ("[BT], tmpBuf[%d]= 0x%x\n", i,
-				  c2h_evt->payload[i]));
+				 "[BT], tmpBuf[%d]= 0x%x\n", i,
+				 c2h_evt->payload[i]);
 		}
 		break;
 
 	case C2H_C2H_H2C_TEST:
 		RT_TRACE(_module_hal_init_c_, _drv_info_,
-			 ("[BT], C2H_H2C_TEST\n"));
+			 "[BT], C2H_H2C_TEST\n");
 		RT_TRACE(_module_hal_init_c_, _drv_info_,
-			 ("[BT], tmpBuf[0]/[1]/[2]/[3]/[4]= 0x%x/ 0x%x/ "
-			  "0x%x/ 0x%x/ 0x%x\n", c2h_evt->payload[0],
-			  c2h_evt->payload[1], c2h_evt->payload[2],
-			  c2h_evt->payload[3], c2h_evt->payload[4]));
+			 "[BT], tmpBuf[0]/[1]/[2]/[3]/[4]= 0x%x/ 0x%x/ 0x%x/ 0x%x/ 0x%x\n",
+			 c2h_evt->payload[0],
+			 c2h_evt->payload[1], c2h_evt->payload[2],
+			 c2h_evt->payload[3], c2h_evt->payload[4]);
 		break;
 
 	case C2H_BT_INFO:
@@ -1095,7 +1081,6 @@ void rtl8723a_init_default_value(struct rtw_adapter *padapter)
 	pdmpriv = &pHalData->dmpriv;
 
 	/*  init default value */
-	pHalData->fw_ractrl = false;
 	pHalData->bIQKInitialized = false;
 	if (!padapter->pwrctrlpriv.bkeepfwalive)
 		pHalData->LastHMEBoxNum = 0;
@@ -1149,14 +1134,13 @@ static int _LLTWrite(struct rtw_adapter *padapter, u32 address, u32 data)
 	/* polling */
 	do {
 		value = rtl8723au_read32(padapter, LLTReg);
-		if (_LLT_NO_ACTIVE == _LLT_OP_VALUE(value)) {
+		if (_LLT_NO_ACTIVE == _LLT_OP_VALUE(value))
 			break;
-		}
 
 		if (count > POLLING_LLT_THRESHOLD) {
 			RT_TRACE(_module_hal_init_c_, _drv_err_,
-				 ("Failed to polling write LLT done at "
-				  "address %d!\n", address));
+				 "Failed to polling write LLT done at address %d!\n",
+				 address);
 			status = _FAIL;
 			break;
 		}
@@ -1174,16 +1158,14 @@ int InitLLTTable23a(struct rtw_adapter *padapter, u32 boundary)
 
 	for (i = 0; i < (txpktbuf_bndy - 1); i++) {
 		status = _LLTWrite(padapter, i, i + 1);
-		if (status != _SUCCESS) {
+		if (status != _SUCCESS)
 			return status;
-		}
 	}
 
 	/*  end of list */
 	status = _LLTWrite(padapter, (txpktbuf_bndy - 1), 0xFF);
-	if (status != _SUCCESS) {
+	if (status != _SUCCESS)
 		return status;
-	}
 
 	/*  Make the other pages as ring buffer */
 	/*  This ring buffer is used as beacon buffer if we config this
@@ -1191,16 +1173,14 @@ int InitLLTTable23a(struct rtw_adapter *padapter, u32 boundary)
 	/*  Otherwise used as local loopback buffer. */
 	for (i = txpktbuf_bndy; i < Last_Entry_Of_TxPktBuf; i++) {
 		status = _LLTWrite(padapter, i, (i + 1));
-		if (_SUCCESS != status) {
+		if (_SUCCESS != status)
 			return status;
-		}
 	}
 
 	/*  Let last entry point to the start entry of ring buffer */
 	status = _LLTWrite(padapter, Last_Entry_Of_TxPktBuf, txpktbuf_bndy);
-	if (status != _SUCCESS) {
+	if (status != _SUCCESS)
 		return status;
-	}
 
 	return status;
 }
@@ -1272,8 +1252,6 @@ e.	SYS_FUNC_EN 0x02[7:0] = 0x14		reset BB state machine
 
 	/*  2010/08/12 MH We need to set BB/GLBAL reset to save power
 	    for SS mode. */
-
-/*	RT_TRACE(COMP_INIT, DBG_LOUD, ("======> RF off and reset BB.\n")); */
 }
 
 static void _ResetDigitalProcedure1_92C(struct rtw_adapter *padapter,
@@ -1402,8 +1380,6 @@ static void _DisableAnalog(struct rtw_adapter *padapter, bool bWithoutHWSM)
 		value8 = rtl8723au_read8(padapter, REG_LDOV12D_CTRL);
 		value8 &= ~LDV12_EN;
 		rtl8723au_write8(padapter, REG_LDOV12D_CTRL, value8);
-/*		RT_TRACE(COMP_INIT, DBG_LOUD,
-		(" REG_LDOV12D_CTRL Reg0x21:0x%02x.\n", value8)); */
 	}
 
 	/*****************************
@@ -1435,9 +1411,9 @@ static void _DisableAnalog(struct rtw_adapter *padapter, bool bWithoutHWSM)
 /*  HW Auto state machine */
 int CardDisableHWSM(struct rtw_adapter *padapter, u8 resetMCU)
 {
-	if (padapter->bSurpriseRemoved) {
+	if (padapter->bSurpriseRemoved)
 		return _SUCCESS;
-	}
+
 	/*  RF Off Sequence ==== */
 	_DisableRFAFEAndResetBB8192C(padapter);
 
@@ -1451,7 +1427,7 @@ int CardDisableHWSM(struct rtw_adapter *padapter, u8 resetMCU)
 	_DisableAnalog(padapter, false);
 
 	RT_TRACE(_module_hci_hal_init_c_, _drv_info_,
-		 ("======> Card disable finished.\n"));
+		 "======> Card disable finished.\n");
 
 	return _SUCCESS;
 }
@@ -1459,9 +1435,8 @@ int CardDisableHWSM(struct rtw_adapter *padapter, u8 resetMCU)
 /*  without HW Auto state machine */
 int CardDisableWithoutHWSM(struct rtw_adapter *padapter)
 {
-	if (padapter->bSurpriseRemoved) {
+	if (padapter->bSurpriseRemoved)
 		return _SUCCESS;
-	}
 
 	/*  RF Off Sequence ==== */
 	_DisableRFAFEAndResetBB8192C(padapter);
@@ -1478,8 +1453,6 @@ int CardDisableWithoutHWSM(struct rtw_adapter *padapter)
 	/*   ==== Disable analog sequence === */
 	_DisableAnalog(padapter, true);
 
-	/* RT_TRACE(COMP_INIT, DBG_LOUD,
-	   ("<====== Card Disable Without HWSM .\n")); */
 	return _SUCCESS;
 }
 
@@ -1496,7 +1469,7 @@ void Hal_InitPGData(struct rtw_adapter *padapter, u8 *PROMContent)
 		}
 	} else {
 		RT_TRACE(_module_hci_hal_init_c_, _drv_notice_,
-			 ("AutoLoad Fail reported from CR9346!!\n"));
+			 "AutoLoad Fail reported from CR9346!!\n");
 		/* update to default value 0xFF */
 		if (!pEEPROM->EepromOrEfuse)
 			EFUSE_ShadowMapUpdate23a(padapter, EFUSE_WIFI);
@@ -1521,7 +1494,7 @@ void Hal_EfuseParseIDCode(struct rtw_adapter *padapter, u8 *hwinfo)
 	}
 
 	RT_TRACE(_module_hal_init_c_, _drv_info_,
-		 ("EEPROM ID = 0x%04x\n", EEPROMId));
+		 "EEPROM ID = 0x%04x\n", EEPROMId);
 }
 
 static void Hal_EEValueCheck(u8 EEType, void *pInValue, void *pOutValue)
@@ -1536,9 +1509,8 @@ static void Hal_EEValueCheck(u8 EEType, void *pInValue, void *pOutValue)
 			*pOut = *pIn;
 		else {
 			RT_TRACE(_module_hci_hal_init_c_, _drv_err_,
-				 ("EETYPE_TX_PWR, value =%d is invalid, set "
-				  "to default = 0x%x\n",
-				  *pIn, EEPROM_Default_TxPowerLevel));
+				 "EETYPE_TX_PWR, value =%d is invalid, set to default = 0x%x\n",
+				 *pIn, EEPROM_Default_TxPowerLevel);
 			*pOut = EEPROM_Default_TxPowerLevel;
 		}
 	}
@@ -1676,35 +1648,34 @@ Hal_EfuseParsetxpowerinfo_8723A(struct rtw_adapter *padapter,
 	for (rfPath = 0; rfPath < RF_PATH_MAX; rfPath++) {
 		for (ch = 0; ch < CHANNEL_MAX_NUMBER; ch++) {
 			RT_TRACE(_module_hci_hal_init_c_, _drv_info_,
-				 ("RF(%u)-Ch(%u) [CCK / HT40_1S / HT40_2S] = "
-				  "[0x%x / 0x%x / 0x%x]\n",
-				  rfPath, ch,
-				  pHalData->TxPwrLevelCck[rfPath][ch],
-				  pHalData->TxPwrLevelHT40_1S[rfPath][ch],
-				  pHalData->TxPwrLevelHT40_2S[rfPath][ch]));
+				 "RF(%u)-Ch(%u) [CCK / HT40_1S / HT40_2S] = [0x%x / 0x%x / 0x%x]\n",
+				 rfPath, ch,
+				 pHalData->TxPwrLevelCck[rfPath][ch],
+				 pHalData->TxPwrLevelHT40_1S[rfPath][ch],
+				 pHalData->TxPwrLevelHT40_2S[rfPath][ch]);
 
 		}
 	}
 	for (ch = 0; ch < CHANNEL_MAX_NUMBER; ch++) {
 		RT_TRACE(_module_hci_hal_init_c_, _drv_info_,
-			 ("RF-A Ht20 to HT40 Diff[%u] = 0x%x(%d)\n", ch,
-			  pHalData->TxPwrHt20Diff[RF_PATH_A][ch],
-			  pHalData->TxPwrHt20Diff[RF_PATH_A][ch]));
+			 "RF-A Ht20 to HT40 Diff[%u] = 0x%x(%d)\n", ch,
+			 pHalData->TxPwrHt20Diff[RF_PATH_A][ch],
+			 pHalData->TxPwrHt20Diff[RF_PATH_A][ch]);
 	}
 	for (ch = 0; ch < CHANNEL_MAX_NUMBER; ch++)
 		RT_TRACE(_module_hci_hal_init_c_, _drv_info_,
-			 ("RF-A Legacy to Ht40 Diff[%u] = 0x%x\n", ch,
-			  pHalData->TxPwrLegacyHtDiff[RF_PATH_A][ch]));
+			 "RF-A Legacy to Ht40 Diff[%u] = 0x%x\n", ch,
+			 pHalData->TxPwrLegacyHtDiff[RF_PATH_A][ch]);
 	for (ch = 0; ch < CHANNEL_MAX_NUMBER; ch++) {
 		RT_TRACE(_module_hci_hal_init_c_, _drv_info_,
-			 ("RF-B Ht20 to HT40 Diff[%u] = 0x%x(%d)\n", ch,
-			  pHalData->TxPwrHt20Diff[RF_PATH_B][ch],
-			  pHalData->TxPwrHt20Diff[RF_PATH_B][ch]));
+			 "RF-B Ht20 to HT40 Diff[%u] = 0x%x(%d)\n", ch,
+			 pHalData->TxPwrHt20Diff[RF_PATH_B][ch],
+			 pHalData->TxPwrHt20Diff[RF_PATH_B][ch]);
 	}
 	for (ch = 0; ch < CHANNEL_MAX_NUMBER; ch++)
 		RT_TRACE(_module_hci_hal_init_c_, _drv_info_,
-			 ("RF-B Legacy to HT40 Diff[%u] = 0x%x\n", ch,
-			  pHalData->TxPwrLegacyHtDiff[RF_PATH_B][ch]));
+			 "RF-B Legacy to HT40 Diff[%u] = 0x%x\n", ch,
+			 pHalData->TxPwrLegacyHtDiff[RF_PATH_B][ch]);
 	if (!AutoLoadFail) {
 		struct registry_priv *registry_par = &padapter->registrypriv;
 		if (registry_par->regulatory_tid == 0xff) {
@@ -1721,7 +1692,7 @@ Hal_EfuseParsetxpowerinfo_8723A(struct rtw_adapter *padapter,
 		pHalData->EEPROMRegulatory = 0;
 	}
 	RT_TRACE(_module_hci_hal_init_c_, _drv_info_,
-		 ("EEPROMRegulatory = 0x%x\n", pHalData->EEPROMRegulatory));
+		 "EEPROMRegulatory = 0x%x\n", pHalData->EEPROMRegulatory);
 
 	if (!AutoLoadFail)
 		pHalData->bTXPowerDataReadFromEEPORM = true;
@@ -1747,8 +1718,8 @@ Hal_EfuseParseBTCoexistInfo_8723A(struct rtw_adapter *padapter,
 		/*  eeprom spec */
 		tempval = hwinfo[RF_OPTION4_8723A];
 		pHalData->EEPROMBluetoothAntNum = (tempval & 0x1);
-		pHalData->EEPROMBluetoothAntIsolation = ((tempval & 0x10) >> 4);
-		pHalData->EEPROMBluetoothRadioShared = ((tempval & 0x20) >> 5);
+		pHalData->EEPROMBluetoothAntIsolation = (tempval & 0x10) >> 4;
+		pHalData->EEPROMBluetoothRadioShared = (tempval & 0x20) >> 5;
 	} else {
 		pHalData->EEPROMBluetoothCoexist = 0;
 		pHalData->EEPROMBluetoothType = BT_RTL8723A;
@@ -1771,8 +1742,8 @@ Hal_EfuseParseEEPROMVer(struct rtw_adapter *padapter,
 	else
 		pHalData->EEPROMVersion = 1;
 	RT_TRACE(_module_hci_hal_init_c_, _drv_info_,
-		 ("Hal_EfuseParseEEPROMVer(), EEVer = %d\n",
-		  pHalData->EEPROMVersion));
+		 "Hal_EfuseParseEEPROMVer(), EEVer = %d\n",
+		 pHalData->EEPROMVersion);
 }
 
 void
@@ -1805,10 +1776,10 @@ Hal_EfuseParseCustomerID(struct rtw_adapter *padapter,
 		pHalData->EEPROMSubCustomerID = 0;
 	}
 	RT_TRACE(_module_hci_hal_init_c_, _drv_info_,
-		 ("EEPROM Customer ID: 0x%2x\n", pHalData->EEPROMCustomerID));
+		 "EEPROM Customer ID: 0x%2x\n", pHalData->EEPROMCustomerID);
 	RT_TRACE(_module_hci_hal_init_c_, _drv_info_,
-		 ("EEPROM SubCustomer ID: 0x%02x\n",
-		  pHalData->EEPROMSubCustomerID));
+		 "EEPROM SubCustomer ID: 0x%02x\n",
+		 pHalData->EEPROMSubCustomerID);
 }
 
 void
@@ -1837,8 +1808,8 @@ Hal_EfuseParseXtal_8723A(struct rtw_adapter *pAdapter,
 		pHalData->CrystalCap = EEPROM_Default_CrystalCap_8723A;
 	}
 	RT_TRACE(_module_hci_hal_init_c_, _drv_info_,
-		 ("%s: CrystalCap = 0x%2x\n", __func__,
-		  pHalData->CrystalCap));
+		 "%s: CrystalCap = 0x%2x\n", __func__,
+		 pHalData->CrystalCap);
 }
 
 void
@@ -1875,9 +1846,8 @@ static void rtl8723a_cal_txdesc_chksum(struct tx_desc *ptxdesc)
 	/*  Clear first */
 	ptxdesc->txdw7 &= cpu_to_le32(0xffff0000);
 
-	for (index = 0; index < count; index++) {
+	for (index = 0; index < count; index++)
 		checksum ^= le16_to_cpu(*(usPtr + index));
-	}
 
 	ptxdesc->txdw7 |= cpu_to_le32(checksum & 0x0000ffff);
 }
@@ -1925,9 +1895,8 @@ void rtl8723a_fill_fake_txdesc(struct rtw_adapter *padapter, u8 *pDesc,
 		ptxdesc->txdw3 |= cpu_to_le32((8 << 28));
 	}
 
-	if (true == IsBTQosNull) {
+	if (true == IsBTQosNull)
 		ptxdesc->txdw2 |= cpu_to_le32(BIT(23));	/*  BT NULL */
-	}
 
 	/* offset 16 */
 	ptxdesc->txdw4 |= cpu_to_le32(BIT(8));	/* driver uses rate */
diff --git a/drivers/staging/rtl8723au/hal/rtl8723a_phycfg.c b/drivers/staging/rtl8723au/hal/rtl8723a_phycfg.c
index 19dc5e3..46a3065 100644
--- a/drivers/staging/rtl8723au/hal/rtl8723a_phycfg.c
+++ b/drivers/staging/rtl8723au/hal/rtl8723a_phycfg.c
@@ -121,18 +121,15 @@ PHY_SetBBReg(struct rtw_adapter *Adapter, u32 RegAddr, u32 BitMask, u32	Data)
 {
 	u32 OriginalValue, BitShift;
 
-	/* RT_TRACE(COMP_RF, DBG_TRACE, ("--->PHY_SetBBReg(): RegAddr(%#lx), BitMask(%#lx), Data(%#lx)\n", RegAddr, BitMask, Data)); */
-
 	if (BitMask != bMaskDWord) {/* if not "double word" write */
 		OriginalValue = rtl8723au_read32(Adapter, RegAddr);
 		BitShift = phy_CalculateBitShift(BitMask);
-		Data = ((OriginalValue & (~BitMask)) | (Data << BitShift));
+		Data = (OriginalValue & (~BitMask)) | (Data << BitShift);
 	}
 
 	rtl8723au_write32(Adapter, RegAddr, Data);
 
 	/* RTPRINT(FPHY, PHY_BBW, ("BBW MASK = 0x%lx Addr[0x%lx]= 0x%lx\n", BitMask, RegAddr, Data)); */
-	/* RT_TRACE(COMP_RF, DBG_TRACE, ("<---PHY_SetBBReg(): RegAddr(%#lx), BitMask(%#lx), Data(%#lx)\n", RegAddr, BitMask, Data)); */
 }
 
 /*  */
@@ -190,25 +187,24 @@ phy_RFSerialRead(struct rtw_adapter *Adapter, enum RF_RADIO_PATH eRFPath,
 	/*  For 92S LSSI Read RFLSSIRead */
 	/*  For RF A/B write 0x824/82c(does not work in the future) */
 	/*  We must use 0x824 for RF A and B to execute read trigger */
-	tmplong = PHY_QueryBBReg(Adapter, rFPGA0_XA_HSSIParameter2, bMaskDWord);
+	tmplong = rtl8723au_read32(Adapter, rFPGA0_XA_HSSIParameter2);
 	if (eRFPath == RF_PATH_A)
 		tmplong2 = tmplong;
 	else
-		tmplong2 = PHY_QueryBBReg(Adapter, pPhyReg->rfHSSIPara2,
-					  bMaskDWord);
+		tmplong2 = rtl8723au_read32(Adapter, pPhyReg->rfHSSIPara2);
 
 	tmplong2 = (tmplong2 & ~bLSSIReadAddress) |
 		(NewOffset << 23) | bLSSIReadEdge;	/* T65 RF */
 
-	PHY_SetBBReg(Adapter, rFPGA0_XA_HSSIParameter2,
-		     bMaskDWord, tmplong & (~bLSSIReadEdge));
+	rtl8723au_write32(Adapter, rFPGA0_XA_HSSIParameter2,
+			  tmplong & (~bLSSIReadEdge));
 	udelay(10);/*  PlatformStallExecution(10); */
 
-	PHY_SetBBReg(Adapter, pPhyReg->rfHSSIPara2, bMaskDWord, tmplong2);
+	rtl8723au_write32(Adapter, pPhyReg->rfHSSIPara2, tmplong2);
 	udelay(100);/* PlatformStallExecution(100); */
 
-	PHY_SetBBReg(Adapter, rFPGA0_XA_HSSIParameter2, bMaskDWord,
-		     tmplong | bLSSIReadEdge);
+	rtl8723au_write32(Adapter, rFPGA0_XA_HSSIParameter2,
+			  tmplong | bLSSIReadEdge);
 	udelay(10);/* PlatformStallExecution(10); */
 
 	if (eRFPath == RF_PATH_A)
@@ -319,9 +315,7 @@ phy_RFSerialWrite(struct rtw_adapter *Adapter, enum RF_RADIO_PATH eRFPath,
 	/*  */
 	/*  Write Operation */
 	/*  */
-	PHY_SetBBReg(Adapter, pPhyReg->rf3wireOffset, bMaskDWord, DataAndAddr);
-	/* RTPRINT(FPHY, PHY_RFW, ("RFW-%d Addr[0x%lx]= 0x%lx\n", eRFPath, pPhyReg->rf3wireOffset, DataAndAddr)); */
-
+	rtl8723au_write32(Adapter, pPhyReg->rf3wireOffset, DataAndAddr);
 }
 
 /**
@@ -392,7 +386,7 @@ PHY_SetRFReg(struct rtw_adapter *Adapter, enum RF_RADIO_PATH eRFPath,
 	if (BitMask != bRFRegOffsetMask) {
 		Original_Value = phy_RFSerialRead(Adapter, eRFPath, RegAddr);
 		BitShift =  phy_CalculateBitShift(BitMask);
-		Data = ((Original_Value & (~BitMask)) | (Data << BitShift));
+		Data = (Original_Value & (~BitMask)) | (Data << BitShift);
 	}
 
 	phy_RFSerialWrite(Adapter, eRFPath, RegAddr, Data);
@@ -419,7 +413,6 @@ PHY_SetRFReg(struct rtw_adapter *Adapter, enum RF_RADIO_PATH eRFPath,
 int PHY_MACConfig8723A(struct rtw_adapter *Adapter)
 {
 	struct hal_data_8723a *pHalData = GET_HAL_DATA(Adapter);
-	bool is92C = IS_92C_SERIAL(pHalData->VersionID);
 
 	/*  */
 	/*  Config MAC */
@@ -427,9 +420,9 @@ int PHY_MACConfig8723A(struct rtw_adapter *Adapter)
 	ODM_ReadAndConfig_MAC_REG_8723A(&pHalData->odmpriv);
 
 	/*  2010.07.13 AMPDU aggregation number 9 */
-	/* rtw_write16(Adapter, REG_MAX_AGGR_NUM, MAX_AGGR_NUM); */
 	rtl8723au_write8(Adapter, REG_MAX_AGGR_NUM, 0x0A);
-	if (is92C && (BOARD_USB_DONGLE == pHalData->BoardType))
+	if (pHalData->rf_type == RF_2T2R &&
+	    BOARD_USB_DONGLE == pHalData->BoardType)
 		rtl8723au_write8(Adapter, 0x40, 0x04);
 
 	return _SUCCESS;
@@ -552,131 +545,51 @@ storePwrIndexDiffRateOffset(struct rtw_adapter *Adapter, u32 RegAddr,
 
 	if (RegAddr == rTxAGC_A_Rate18_06) {
 		pHalData->MCSTxPowerLevelOriginalOffset[pHalData->pwrGroupCnt][0] = Data;
-		/* RT_TRACE(COMP_INIT, DBG_TRACE,
-		   ("MCSTxPowerLevelOriginalOffset[%d][0] = 0x%lx\n",
-		   pHalData->pwrGroupCnt, */
-		/*	pHalData->MCSTxPowerLevelOriginalOffset[
-			pHalData->pwrGroupCnt][0])); */
 	}
 	if (RegAddr == rTxAGC_A_Rate54_24) {
 		pHalData->MCSTxPowerLevelOriginalOffset[pHalData->pwrGroupCnt][1] = Data;
-		/* RT_TRACE(COMP_INIT, DBG_TRACE,
-		   ("MCSTxPowerLevelOriginalOffset[%d][1] = 0x%lx\n",
-		   pHalData->pwrGroupCnt, */
-		/*	pHalData->MCSTxPowerLevelOriginalOffset[
-			pHalData->pwrGroupCnt][1])); */
 	}
 	if (RegAddr == rTxAGC_A_CCK1_Mcs32) {
 		pHalData->MCSTxPowerLevelOriginalOffset[pHalData->pwrGroupCnt][6] = Data;
-		/* RT_TRACE(COMP_INIT, DBG_TRACE,
-		   ("MCSTxPowerLevelOriginalOffset[%d][6] = 0x%lx\n",
-		   pHalData->pwrGroupCnt, */
-		/*	pHalData->MCSTxPowerLevelOriginalOffset[
-			pHalData->pwrGroupCnt][6])); */
 	}
 	if (RegAddr == rTxAGC_B_CCK11_A_CCK2_11 && BitMask == 0xffffff00) {
 		pHalData->MCSTxPowerLevelOriginalOffset[pHalData->pwrGroupCnt][7] = Data;
-		/* RT_TRACE(COMP_INIT, DBG_TRACE,
-		   ("MCSTxPowerLevelOriginalOffset[%d][7] = 0x%lx\n",
-		   pHalData->pwrGroupCnt, */
-		/*	pHalData->MCSTxPowerLevelOriginalOffset[
-			pHalData->pwrGroupCnt][7])); */
 	}
 	if (RegAddr == rTxAGC_A_Mcs03_Mcs00) {
 		pHalData->MCSTxPowerLevelOriginalOffset[pHalData->pwrGroupCnt][2] = Data;
-		/* RT_TRACE(COMP_INIT, DBG_TRACE,
-		   ("MCSTxPowerLevelOriginalOffset[%d][2] = 0x%lx\n",
-		   pHalData->pwrGroupCnt, */
-		/*	pHalData->MCSTxPowerLevelOriginalOffset[
-			pHalData->pwrGroupCnt][2])); */
 	}
 	if (RegAddr == rTxAGC_A_Mcs07_Mcs04) {
 		pHalData->MCSTxPowerLevelOriginalOffset[pHalData->pwrGroupCnt][3] = Data;
-		/* RT_TRACE(COMP_INIT, DBG_TRACE,
-		   ("MCSTxPowerLevelOriginalOffset[%d][3] = 0x%lx\n",
-		   pHalData->pwrGroupCnt, */
-		/*	pHalData->MCSTxPowerLevelOriginalOffset[
-			pHalData->pwrGroupCnt][3])); */
 	}
 	if (RegAddr == rTxAGC_A_Mcs11_Mcs08) {
 		pHalData->MCSTxPowerLevelOriginalOffset[pHalData->pwrGroupCnt][4] = Data;
-		/* RT_TRACE(COMP_INIT, DBG_TRACE,
-		   ("MCSTxPowerLevelOriginalOffset[%d][4] = 0x%lx\n",
-		   pHalData->pwrGroupCnt, */
-		/*	pHalData->MCSTxPowerLevelOriginalOffset[
-			pHalData->pwrGroupCnt][4])); */
 	}
 	if (RegAddr == rTxAGC_A_Mcs15_Mcs12) {
 		pHalData->MCSTxPowerLevelOriginalOffset[pHalData->pwrGroupCnt][5] = Data;
-		/* RT_TRACE(COMP_INIT, DBG_TRACE,
-		   ("MCSTxPowerLevelOriginalOffset[%d][5] = 0x%lx\n",
-		   pHalData->pwrGroupCnt, */
-		/*	pHalData->MCSTxPowerLevelOriginalOffset[
-			pHalData->pwrGroupCnt][5])); */
 	}
 	if (RegAddr == rTxAGC_B_Rate18_06) {
 		pHalData->MCSTxPowerLevelOriginalOffset[pHalData->pwrGroupCnt][8] = Data;
-		/* RT_TRACE(COMP_INIT, DBG_TRACE,
-		   ("MCSTxPowerLevelOriginalOffset[%d][8] = 0x%lx\n",
-		   pHalData->pwrGroupCnt, */
-		/*	pHalData->MCSTxPowerLevelOriginalOffset[
-			pHalData->pwrGroupCnt][8])); */
 	}
 	if (RegAddr == rTxAGC_B_Rate54_24) {
 		pHalData->MCSTxPowerLevelOriginalOffset[pHalData->pwrGroupCnt][9] = Data;
-		/* RT_TRACE(COMP_INIT, DBG_TRACE,
-		   ("MCSTxPowerLevelOriginalOffset[%d][9] = 0x%lx\n",
-		   pHalData->pwrGroupCnt, */
-		/*	pHalData->MCSTxPowerLevelOriginalOffset[
-			pHalData->pwrGroupCnt][9])); */
 	}
 	if (RegAddr == rTxAGC_B_CCK1_55_Mcs32) {
 		pHalData->MCSTxPowerLevelOriginalOffset[pHalData->pwrGroupCnt][14] = Data;
-		/* RT_TRACE(COMP_INIT, DBG_TRACE,
-		   ("MCSTxPowerLevelOriginalOffset[%d][14] = 0x%lx\n",
-		   pHalData->pwrGroupCnt, */
-		/*	pHalData->MCSTxPowerLevelOriginalOffset[
-			pHalData->pwrGroupCnt][14])); */
 	}
 	if (RegAddr == rTxAGC_B_CCK11_A_CCK2_11 && BitMask == 0x000000ff) {
 		pHalData->MCSTxPowerLevelOriginalOffset[pHalData->pwrGroupCnt][15] = Data;
-		/* RT_TRACE(COMP_INIT, DBG_TRACE,
-		   ("MCSTxPowerLevelOriginalOffset[%d][15] = 0x%lx\n",
-		   pHalData->pwrGroupCnt, */
-		/*	pHalData->MCSTxPowerLevelOriginalOffset[
-			pHalData->pwrGroupCnt][15])); */
 	}
 	if (RegAddr == rTxAGC_B_Mcs03_Mcs00) {
 		pHalData->MCSTxPowerLevelOriginalOffset[pHalData->pwrGroupCnt][10] = Data;
-		/* RT_TRACE(COMP_INIT, DBG_TRACE,
-		   ("MCSTxPowerLevelOriginalOffset[%d][10] = 0x%lx\n",
-		   pHalData->pwrGroupCnt, */
-		/*	pHalData->MCSTxPowerLevelOriginalOffset[
-			pHalData->pwrGroupCnt][10])); */
 	}
 	if (RegAddr == rTxAGC_B_Mcs07_Mcs04) {
 		pHalData->MCSTxPowerLevelOriginalOffset[pHalData->pwrGroupCnt][11] = Data;
-		/* RT_TRACE(COMP_INIT, DBG_TRACE,
-		   ("MCSTxPowerLevelOriginalOffset[%d][11] = 0x%lx\n",
-		   pHalData->pwrGroupCnt, */
-		/*	pHalData->MCSTxPowerLevelOriginalOffset[
-			pHalData->pwrGroupCnt][11])); */
 	}
 	if (RegAddr == rTxAGC_B_Mcs11_Mcs08) {
 		pHalData->MCSTxPowerLevelOriginalOffset[pHalData->pwrGroupCnt][12] = Data;
-		/* RT_TRACE(COMP_INIT, DBG_TRACE,
-		   ("MCSTxPowerLevelOriginalOffset[%d][12] = 0x%lx\n",
-		   pHalData->pwrGroupCnt, */
-		/*	pHalData->MCSTxPowerLevelOriginalOffset[
-			pHalData->pwrGroupCnt][12])); */
 	}
 	if (RegAddr == rTxAGC_B_Mcs15_Mcs12) {
 		pHalData->MCSTxPowerLevelOriginalOffset[pHalData->pwrGroupCnt][13] = Data;
-		/* RT_TRACE(COMP_INIT, DBG_TRACE,
-		   ("MCSTxPowerLevelOriginalOffset[%d][13] = 0x%lx\n",
-		   pHalData->pwrGroupCnt, */
-		/*	pHalData->MCSTxPowerLevelOriginalOffset[
-			pHalData->pwrGroupCnt][13])); */
 		pHalData->pwrGroupCnt++;
 	}
 }
@@ -831,7 +744,7 @@ PHY_BBConfig8723A(struct rtw_adapter *Adapter)
 			     (CrystalCap | (CrystalCap << 6)));
 	}
 
-	PHY_SetBBReg(Adapter, REG_LDOA15_CTRL, bMaskDWord, 0x01572505);
+	rtl8723au_write32(Adapter, REG_LDOA15_CTRL, 0x01572505);
 	return rtStatus;
 }
 
@@ -920,10 +833,6 @@ _PHY_SetBWMode23a92C(struct rtw_adapter *Adapter)
 	u8 regBwOpMode;
 	u8 regRRSR_RSC;
 
-	/*  There is no 40MHz mode in RF_8225. */
-	if (pHalData->rf_chip == RF_8225)
-		return;
-
 	if (Adapter->bDriverStopped)
 		return;
 
@@ -982,10 +891,7 @@ _PHY_SetBWMode23a92C(struct rtw_adapter *Adapter)
 		break;
 
 	default:
-		/*RT_TRACE(COMP_DBG, DBG_LOUD,
-		  ("PHY_SetBWMode23aCallback8192C(): unknown Bandwidth: %#X\n" \
-		  , pHalData->CurrentChannelBW));*/
-			break;
+		break;
 	}
 	/* Skip over setting of J-mode in BB register here. Default value
 	   is "None J mode". Emily 20070315 */
@@ -994,41 +900,8 @@ _PHY_SetBWMode23a92C(struct rtw_adapter *Adapter)
 	/* NowL = PlatformEFIORead4Byte(Adapter, TSFR); */
 	/* NowH = PlatformEFIORead4Byte(Adapter, TSFR+4); */
 	/* EndTime = ((u64)NowH << 32) + NowL; */
-	/* RT_TRACE(COMP_SCAN, DBG_LOUD, ("SetBWMode23aCallback8190Pci: time
-	   of SetBWMode23a = %I64d us!\n", (EndTime - BeginTime))); */
-
-	/* 3<3>Set RF related register */
-	switch (pHalData->rf_chip) {
-	case RF_8225:
-		/* PHY_SetRF8225Bandwidth(Adapter,
-		   pHalData->CurrentChannelBW); */
-		break;
-
-	case RF_8256:
-		/*  Please implement this function in Hal8190PciPhy8256.c */
-		/* PHY_SetRF8256Bandwidth(Adapter,
-		   pHalData->CurrentChannelBW); */
-		break;
-
-	case RF_8258:
-		/*  Please implement this function in Hal8190PciPhy8258.c */
-		/*  PHY_SetRF8258Bandwidth(); */
-		break;
-
-	case RF_6052:
-		rtl8723a_phy_rf6052set_bw(Adapter, pHalData->CurrentChannelBW);
-		break;
-
-	default:
-		/* RT_ASSERT(false, ("Unknown RFChipID: %d\n",
-		   pHalData->RFChipID)); */
-		break;
-	}
-
-	/* pHalData->SetBWMode23aInProgress = false; */
 
-	/* RT_TRACE(COMP_SCAN, DBG_LOUD,
-	   ("<== PHY_SetBWMode23aCallback8192C() \n")); */
+	rtl8723a_phy_rf6052set_bw(Adapter, pHalData->CurrentChannelBW);
 }
 
  /*-----------------------------------------------------------------------------
diff --git a/drivers/staging/rtl8723au/hal/rtl8723a_rf6052.c b/drivers/staging/rtl8723au/hal/rtl8723a_rf6052.c
index 1aad438..3e3f186 100644
--- a/drivers/staging/rtl8723au/hal/rtl8723a_rf6052.c
+++ b/drivers/staging/rtl8723au/hal/rtl8723a_rf6052.c
@@ -267,8 +267,8 @@ getTxPowerWriteValByRegulatory(struct rtw_adapter *Adapter, u8 Channel,
 			break;
 		case 2:	/*  Better regulatory */
 			/*  don't increase any power diff */
-			writeVal = ((index < 2) ? powerBase0[rf] :
-				    powerBase1[rf]);
+			writeVal = (index < 2) ? powerBase0[rf] :
+				    powerBase1[rf];
 			break;
 		case 3:	/*  Customer defined power diff. */
 			chnlGroup = 0;
@@ -353,7 +353,7 @@ static void writeOFDMPowerReg(struct rtw_adapter *Adapter, u8 index,
 		else
 			RegOffset = RegOffset_B[index];
 
-		PHY_SetBBReg(Adapter, RegOffset, bMaskDWord, writeVal);
+		rtl8723au_write32(Adapter, RegOffset, writeVal);
 
 		/*  201005115 Joseph: Set Tx Power diff for Tx power
 		    training mechanism. */
diff --git a/drivers/staging/rtl8723au/hal/rtl8723au_recv.c b/drivers/staging/rtl8723au/hal/rtl8723au_recv.c
index 6075b6d..0fec84b 100644
--- a/drivers/staging/rtl8723au/hal/rtl8723au_recv.c
+++ b/drivers/staging/rtl8723au/hal/rtl8723au_recv.c
@@ -48,7 +48,7 @@ int rtl8723au_init_recv_priv(struct rtw_adapter *padapter)
 	if (!precvpriv->precv_buf) {
 		res = _FAIL;
 		RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
-			 ("alloc recv_buf fail!\n"));
+			 "alloc recv_buf fail!\n");
 		goto exit;
 	}
 
@@ -194,8 +194,8 @@ void update_recvframe_phyinfo(struct recv_frame *precvframe,
 	bool matchbssid = false;
 	u8 *bssid;
 
-	matchbssid = (!ieee80211_is_ctl(hdr->frame_control) &&
-		      !pattrib->icv_err && !pattrib->crc_err);
+	matchbssid = !ieee80211_is_ctl(hdr->frame_control) &&
+		      !pattrib->icv_err && !pattrib->crc_err;
 
 	if (matchbssid) {
 		switch (hdr->frame_control &
diff --git a/drivers/staging/rtl8723au/hal/rtl8723au_xmit.c b/drivers/staging/rtl8723au/hal/rtl8723au_xmit.c
index 1759487..6bf87fe 100644
--- a/drivers/staging/rtl8723au/hal/rtl8723au_xmit.c
+++ b/drivers/staging/rtl8723au/hal/rtl8723au_xmit.c
@@ -42,7 +42,7 @@ static int urb_zero_packet_chk(struct rtw_adapter *padapter, int sz)
 
 static void rtl8192cu_cal_txdesc_chksum(struct tx_desc	*ptxdesc)
 {
-		u16	*usPtr = (u16 *)ptxdesc;
+		__le16	*usPtr = (__le16 *)ptxdesc;
 		u32 count = 16;		/*  (32 bytes / 2 bytes per XOR) => 16 times */
 		u32 index;
 		u16 checksum = 0;
@@ -130,7 +130,7 @@ static void fill_txdesc_phy(struct pkt_attrib *pattrib, __le32 *pdw)
 	}
 }
 
-static s32 update_txdesc(struct xmit_frame *pxmitframe, u8 *pmem, s32 sz, u8 bagg_pkt)
+static s32 update_txdesc(struct xmit_frame *pxmitframe, u8 *pmem, s32 sz)
 {
 	int	pull = 0;
 	uint	qsel;
@@ -143,7 +143,7 @@ static s32 update_txdesc(struct xmit_frame *pxmitframe, u8 *pmem, s32 sz, u8 bag
 	struct mlme_ext_info	*pmlmeinfo = &pmlmeext->mlmext_info;
 	int	bmcst = is_multicast_ether_addr(pattrib->ra);
 
-	if ((!bagg_pkt) && (urb_zero_packet_chk(padapter, sz) == 0)) {
+	if (urb_zero_packet_chk(padapter, sz) == 0) {
 		ptxdesc = (struct tx_desc *)(pmem+PACKET_OFFSET_SZ);
 		pull = 1;
 		pxmitframe->pkt_offset--;
@@ -272,7 +272,8 @@ static s32 update_txdesc(struct xmit_frame *pxmitframe, u8 *pmem, s32 sz, u8 bag
 	if (bmcst)
 		ptxdesc->txdw0 |= cpu_to_le32(BIT(24));
 
-	RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_, ("offset0-txdesc = 0x%x\n", ptxdesc->txdw0));
+	RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_,
+		 "offset0-txdesc = 0x%x\n", ptxdesc->txdw0);
 
 	/* offset 4 */
 	/*  pkt_offset, unit:8 bytes padding */
@@ -303,7 +304,7 @@ static int rtw_dump_xframe(struct rtw_adapter *padapter,
 
 	mem_addr = pxmitframe->buf_addr;
 
-	RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_, ("rtw_dump_xframe()\n"));
+	RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_, "rtw_dump_xframe()\n");
 
 	for (t = 0; t < pattrib->nr_frags; t++) {
 		if (inner_ret != _SUCCESS && ret == _SUCCESS)
@@ -311,7 +312,7 @@ static int rtw_dump_xframe(struct rtw_adapter *padapter,
 
 		if (t != (pattrib->nr_frags - 1)) {
 			RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_,
-				 ("pattrib->nr_frags =%d\n", pattrib->nr_frags));
+				 "pattrib->nr_frags =%d\n", pattrib->nr_frags);
 
 			sz = pxmitpriv->frag_len;
 			sz = sz - 4 - pattrib->icv_len;
@@ -320,7 +321,7 @@ static int rtw_dump_xframe(struct rtw_adapter *padapter,
 			sz = pattrib->last_txcmdsz;
 		}
 
-		pull = update_txdesc(pxmitframe, mem_addr, sz, false);
+		pull = update_txdesc(pxmitframe, mem_addr, sz);
 
 		if (pull) {
 			mem_addr += PACKET_OFFSET_SZ; /* pull txdesc head */
@@ -338,7 +339,7 @@ static int rtw_dump_xframe(struct rtw_adapter *padapter,
 		rtw_count_tx_stats23a(padapter, pxmitframe, sz);
 
 		RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_,
-			 ("rtw_write_port, w_sz =%d\n", w_sz));
+			 "rtw_write_port, w_sz =%d\n", w_sz);
 
 		mem_addr += w_sz;
 
@@ -365,7 +366,7 @@ bool rtl8723au_xmitframe_complete(struct rtw_adapter *padapter,
 	phwxmits = pxmitpriv->hwxmits;
 	hwentry = pxmitpriv->hwxmit_entry;
 
-	RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_, ("xmitframe_complete()\n"));
+	RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_, "xmitframe_complete()\n");
 
 	if (pxmitbuf == NULL) {
 		pxmitbuf = rtw_alloc_xmitbuf23a(pxmitpriv);
@@ -388,7 +389,8 @@ bool rtl8723au_xmitframe_complete(struct rtw_adapter *padapter,
 			rtw_os_xmit_complete23a(padapter, pxmitframe);/* always return ndis_packet after rtw_xmitframe_coalesce23a */
 		}
 
-		RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_, ("xmitframe_complete(): rtw_dump_xframe\n"));
+		RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_,
+			 "xmitframe_complete(): rtw_dump_xframe\n");
 
 		if (res == _SUCCESS) {
 			rtw_dump_xframe(padapter, pxmitframe);
@@ -481,7 +483,7 @@ enqueue:
 
 	if (res != _SUCCESS) {
 		RT_TRACE(_module_xmit_osdep_c_, _drv_err_,
-			 ("pre_xmitframe: enqueue xmitframe fail\n"));
+			 "pre_xmitframe: enqueue xmitframe fail\n");
 		rtw_free_xmitframe23a(pxmitpriv, pxmitframe);
 
 		/*  Trick, make the statistics correct */
diff --git a/drivers/staging/rtl8723au/hal/usb_halinit.c b/drivers/staging/rtl8723au/hal/usb_halinit.c
index adbf1c2..42ae29d 100644
--- a/drivers/staging/rtl8723au/hal/usb_halinit.c
+++ b/drivers/staging/rtl8723au/hal/usb_halinit.c
@@ -447,22 +447,8 @@ static void _InitRetryFunction(struct rtw_adapter *Adapter)
 static void _InitRFType(struct rtw_adapter *Adapter)
 {
 	struct hal_data_8723a *pHalData = GET_HAL_DATA(Adapter);
-	bool is92CU = IS_92C_SERIAL(pHalData->VersionID);
 
-	pHalData->rf_chip = RF_6052;
-
-	if (!is92CU) {
-		pHalData->rf_type = RF_1T1R;
-		DBG_8723A("Set RF Chip ID to RF_6052 and RF type to 1T1R.\n");
-		return;
-	}
-
-	/*  TODO: Consider that EEPROM set 92CU to 1T1R later. */
-	/*  Force to overwrite setting according to chip version. Ignore
-	    EEPROM setting. */
-	/* pHalData->RF_Type = is92CU ? RF_2T2R : RF_1T1R; */
-	MSG_8723A("Set RF Chip ID to RF_6052 and RF type to %d.\n",
-		  pHalData->rf_type);
+	pHalData->rf_type = RF_1T1R;
 }
 
 /*  Set CCK and OFDM Block "ON" */
@@ -530,7 +516,7 @@ int rtl8723au_hal_init(struct rtw_adapter *Adapter)
 	/*  Check if MAC has already power on. by tynli. 2011.05.27. */
 	val8 = rtl8723au_read8(Adapter, REG_CR);
 	RT_TRACE(_module_hci_hal_init_c_, _drv_info_,
-		 ("%s: REG_CR 0x100 = 0x%02x\n", __func__, val8));
+		 "%s: REG_CR 0x100 = 0x%02x\n", __func__, val8);
 	/* Fix 92DU-VC S3 hang with the reason is that secondary mac is not
 	   initialized. */
 	/* 0x100 value of first mac is 0xEA while 0x100 value of secondary
@@ -540,13 +526,13 @@ int rtl8723au_hal_init(struct rtw_adapter *Adapter)
 	} else {
 		mac_on = true;
 		RT_TRACE(_module_hci_hal_init_c_, _drv_info_,
-			 ("%s: MAC has already power on\n", __func__));
+			 "%s: MAC has already power on\n", __func__);
 	}
 
 	status = _InitPowerOn(Adapter);
 	if (status == _FAIL) {
 		RT_TRACE(_module_hci_hal_init_c_, _drv_err_,
-			 ("Failed to init power on!\n"));
+			 "Failed to init power on!\n");
 		goto exit;
 	}
 
@@ -561,7 +547,7 @@ int rtl8723au_hal_init(struct rtw_adapter *Adapter)
 		status =  InitLLTTable23a(Adapter, boundary);
 		if (status == _FAIL) {
 			RT_TRACE(_module_hci_hal_init_c_, _drv_err_,
-				 ("Failed to init LLT table\n"));
+				 "Failed to init LLT table\n");
 			goto exit;
 		}
 	}
@@ -572,12 +558,10 @@ int rtl8723au_hal_init(struct rtw_adapter *Adapter)
 	status = rtl8723a_FirmwareDownload(Adapter);
 	if (status != _SUCCESS) {
 		Adapter->bFWReady = false;
-		pHalData->fw_ractrl = false;
 		DBG_8723A("fw download fail!\n");
 		goto exit;
 	} else {
 		Adapter->bFWReady = true;
-		pHalData->fw_ractrl = true;
 		DBG_8723A("fw download ok!\n");
 	}
 
@@ -625,17 +609,22 @@ int rtl8723au_hal_init(struct rtw_adapter *Adapter)
 	}
 
 	/* reducing 80M spur */
-	PHY_SetBBReg(Adapter, REG_AFE_XTAL_CTRL, bMaskDWord, 0x0381808d);
-	PHY_SetBBReg(Adapter, REG_AFE_PLL_CTRL, bMaskDWord, 0xf0ffff83);
-	PHY_SetBBReg(Adapter, REG_AFE_PLL_CTRL, bMaskDWord, 0xf0ffff82);
-	PHY_SetBBReg(Adapter, REG_AFE_PLL_CTRL, bMaskDWord, 0xf0ffff83);
+	rtl8723au_write32(Adapter, REG_AFE_XTAL_CTRL, 0x0381808d);
+	rtl8723au_write32(Adapter, REG_AFE_PLL_CTRL, 0xf0ffff83);
+	rtl8723au_write32(Adapter, REG_AFE_PLL_CTRL, 0xf0ffff82);
+	rtl8723au_write32(Adapter, REG_AFE_PLL_CTRL, 0xf0ffff83);
 
 	/* RFSW Control */
-	PHY_SetBBReg(Adapter, rFPGA0_TxInfo, bMaskDWord, 0x00000003);	/* 0x804[14]= 0 */
-	PHY_SetBBReg(Adapter, rFPGA0_XAB_RFInterfaceSW, bMaskDWord, 0x07000760);	/* 0x870[6:5]= b'11 */
-	PHY_SetBBReg(Adapter, rFPGA0_XA_RFInterfaceOE, bMaskDWord, 0x66F60210); /* 0x860[6:5]= b'00 */
+	/* 0x804[14]= 0 */
+	rtl8723au_write32(Adapter, rFPGA0_TxInfo, 0x00000003);
+	/* 0x870[6:5]= b'11 */
+	rtl8723au_write32(Adapter, rFPGA0_XAB_RFInterfaceSW, 0x07000760);
+	/* 0x860[6:5]= b'00 */
+	rtl8723au_write32(Adapter, rFPGA0_XA_RFInterfaceOE, 0x66F60210);
 
-	RT_TRACE(_module_hci_hal_init_c_, _drv_info_, ("%s: 0x870 = value 0x%x\n", __func__, PHY_QueryBBReg(Adapter, 0x870, bMaskDWord)));
+	RT_TRACE(_module_hci_hal_init_c_, _drv_info_,
+		 "%s: 0x870 = value 0x%x\n", __func__,
+		 rtl8723au_read32(Adapter, 0x870));
 
 	/*  */
 	/*  Joseph Note: Keep RfRegChnlVal for later use. */
@@ -747,15 +736,16 @@ int rtl8723au_hal_init(struct rtw_adapter *Adapter)
 
 	rtl8723a_InitHalDm(Adapter);
 
-	val8 = ((WiFiNavUpperUs + HAL_8723A_NAV_UPPER_UNIT - 1) /
-		HAL_8723A_NAV_UPPER_UNIT);
+	val8 = (WiFiNavUpperUs + HAL_8723A_NAV_UPPER_UNIT - 1) /
+		HAL_8723A_NAV_UPPER_UNIT;
 	rtl8723au_write8(Adapter, REG_NAV_UPPER, val8);
 
 	/*  2011/03/09 MH debug only, UMC-B cut pass 2500 S5 test, but we need to fin root cause. */
 	if (((rtl8723au_read32(Adapter, rFPGA0_RFMOD) & 0xFF000000) !=
 	     0x83000000)) {
 		PHY_SetBBReg(Adapter, rFPGA0_RFMOD, BIT(24), 1);
-		RT_TRACE(_module_hci_hal_init_c_, _drv_err_, ("%s: IQK fail recorver\n", __func__));
+		RT_TRACE(_module_hci_hal_init_c_, _drv_err_,
+			 "%s: IQK fail recover\n", __func__);
 	}
 
 	/* ack for xmit mgmt frames. */
@@ -806,19 +796,18 @@ static void phy_SsPwrSwitch92CU(struct rtw_adapter *Adapter,
 
 		/* AFE */
 		if (pHalData->rf_type ==  RF_2T2R)
-			PHY_SetBBReg(Adapter, rRx_Wait_CCA, bMaskDWord,
-				     0x63DB25A0);
+			rtl8723au_write32(Adapter, rRx_Wait_CCA, 0x63DB25A0);
 		else if (pHalData->rf_type ==  RF_1T1R)
-			PHY_SetBBReg(Adapter, rRx_Wait_CCA, bMaskDWord,
-				     0x631B25A0);
+			rtl8723au_write32(Adapter, rRx_Wait_CCA, 0x631B25A0);
 
 		/*  4. issue 3-wire command that RF set to Rx idle
 		    mode. This is used to re-write the RX idle mode. */
 		/*  We can only prvide a usual value instead and then
 		    HW will modify the value by itself. */
-		PHY_SetRFReg(Adapter, RF_PATH_A, 0, bRFRegOffsetMask, 0x32D95);
+		PHY_SetRFReg(Adapter, RF_PATH_A, RF_AC,
+			     bRFRegOffsetMask, 0x32D95);
 		if (pHalData->rf_type ==  RF_2T2R) {
-			PHY_SetRFReg(Adapter, RF_PATH_B, 0,
+			PHY_SetRFReg(Adapter, RF_PATH_B, RF_AC,
 				     bRFRegOffsetMask, 0x32D95);
 		}
 		break;
@@ -829,7 +818,7 @@ static void phy_SsPwrSwitch92CU(struct rtw_adapter *Adapter,
 		else
 			sps0 &= ~(BIT(0) | BIT(3));
 
-		RT_TRACE(_module_hal_init_c_, _drv_err_, ("SS LVL1\n"));
+		RT_TRACE(_module_hal_init_c_, _drv_err_, "SS LVL1\n");
 		/*  Disable RF and BB only for SelectSuspend. */
 
 		/*  1. Set BB/RF to shutdown. */
@@ -840,13 +829,11 @@ static void phy_SsPwrSwitch92CU(struct rtw_adapter *Adapter,
 						for packet detection */
 		/*	(4) Reg800[1] = 1	enable preamble power saving */
 		Adapter->pwrctrlpriv.PS_BBRegBackup[PSBBREG_RF0] =
-			PHY_QueryBBReg(Adapter, rFPGA0_XAB_RFParameter,
-				       bMaskDWord);
+			rtl8723au_read32(Adapter, rFPGA0_XAB_RFParameter);
 		Adapter->pwrctrlpriv.PS_BBRegBackup[PSBBREG_RF1] =
-			PHY_QueryBBReg(Adapter, rOFDM0_TRxPathEnable,
-				       bMaskDWord);
+			rtl8723au_read32(Adapter, rOFDM0_TRxPathEnable);
 		Adapter->pwrctrlpriv.PS_BBRegBackup[PSBBREG_RF2] =
-			PHY_QueryBBReg(Adapter, rFPGA0_RFMOD, bMaskDWord);
+			rtl8723au_read32(Adapter, rFPGA0_RFMOD);
 		if (pHalData->rf_type ==  RF_2T2R) {
 			PHY_SetBBReg(Adapter, rFPGA0_XAB_RFParameter,
 				     0x380038, 0);
@@ -858,18 +845,16 @@ static void phy_SsPwrSwitch92CU(struct rtw_adapter *Adapter,
 
 		/*  2 .AFE control register to power down. bit[30:22] */
 		Adapter->pwrctrlpriv.PS_BBRegBackup[PSBBREG_AFE0] =
-			PHY_QueryBBReg(Adapter, rRx_Wait_CCA, bMaskDWord);
+			rtl8723au_read32(Adapter, rRx_Wait_CCA);
 		if (pHalData->rf_type ==  RF_2T2R)
-			PHY_SetBBReg(Adapter, rRx_Wait_CCA, bMaskDWord,
-				     0x00DB25A0);
+			rtl8723au_write32(Adapter, rRx_Wait_CCA, 0x00DB25A0);
 		else if (pHalData->rf_type ==  RF_1T1R)
-			PHY_SetBBReg(Adapter, rRx_Wait_CCA, bMaskDWord,
-				     0x001B25A0);
+			rtl8723au_write32(Adapter, rRx_Wait_CCA, 0x001B25A0);
 
 		/*  3. issue 3-wire command that RF set to power down.*/
-		PHY_SetRFReg(Adapter, RF_PATH_A, 0, bRFRegOffsetMask, 0);
+		PHY_SetRFReg(Adapter, RF_PATH_A, RF_AC, bRFRegOffsetMask, 0);
 		if (pHalData->rf_type ==  RF_2T2R)
-			PHY_SetRFReg(Adapter, RF_PATH_B, 0,
+			PHY_SetRFReg(Adapter, RF_PATH_B, RF_AC,
 				     bRFRegOffsetMask, 0);
 
 		/*  4. Force PFM , disable SPS18_LDO_Marco_Block */
@@ -949,14 +934,14 @@ int rtl8723au_inirp_init(struct rtw_adapter *Adapter)
 
 	status = _SUCCESS;
 
-	RT_TRACE(_module_hci_hal_init_c_, _drv_info_, ("===> usb_inirp_init\n"));
+	RT_TRACE(_module_hci_hal_init_c_, _drv_info_, "===> usb_inirp_init\n");
 
 	/* issue Rx irp to receive data */
 	precvbuf = (struct recv_buf *)precvpriv->precv_buf;
 	for (i = 0; i < NR_RECVBUFF; i++) {
 		if (rtl8723au_read_port(Adapter, 0, precvbuf) == _FAIL) {
 			RT_TRACE(_module_hci_hal_init_c_, _drv_err_,
-				 ("usb_rx_init: usb_read_port error\n"));
+				 "usb_rx_init: usb_read_port error\n");
 			status = _FAIL;
 			goto exit;
 		}
@@ -964,7 +949,7 @@ int rtl8723au_inirp_init(struct rtw_adapter *Adapter)
 	}
 	if (rtl8723au_read_interrupt(Adapter) == _FAIL) {
 		RT_TRACE(_module_hci_hal_init_c_, _drv_err_,
-			 ("%s: usb_read_interrupt error\n", __func__));
+			 "%s: usb_read_interrupt error\n", __func__);
 		status = _FAIL;
 	}
 	pHalData->IntrMask[0] = rtl8723au_read32(Adapter, REG_USB_HIMR);
@@ -973,7 +958,7 @@ int rtl8723au_inirp_init(struct rtw_adapter *Adapter)
 	rtl8723au_write32(Adapter, REG_USB_HIMR, pHalData->IntrMask[0]);
 exit:
 	RT_TRACE(_module_hci_hal_init_c_, _drv_info_,
-		 ("<=== usb_inirp_init\n"));
+		 "<=== usb_inirp_init\n");
 	return status;
 }
 
@@ -982,7 +967,7 @@ int rtl8723au_inirp_deinit(struct rtw_adapter *Adapter)
 	struct hal_data_8723a	*pHalData = GET_HAL_DATA(Adapter);
 
 	RT_TRACE(_module_hci_hal_init_c_, _drv_info_,
-		 ("\n ===> usb_rx_deinit\n"));
+		 "===> usb_rx_deinit\n");
 	rtl8723au_read_port_cancel(Adapter);
 	pHalData->IntrMask[0] = rtl8723au_read32(Adapter, REG_USB_HIMR);
 	MSG_8723A("%s pHalData->IntrMask = 0x%04x\n", __func__,
@@ -990,7 +975,7 @@ int rtl8723au_inirp_deinit(struct rtw_adapter *Adapter)
 	pHalData->IntrMask[0] = 0x0;
 	rtl8723au_write32(Adapter, REG_USB_HIMR, pHalData->IntrMask[0]);
 	RT_TRACE(_module_hci_hal_init_c_, _drv_info_,
-		 ("\n <=== usb_rx_deinit\n"));
+		 "<=== usb_rx_deinit\n");
 	return _SUCCESS;
 }
 
@@ -1037,11 +1022,10 @@ static void Hal_EfuseParseMACAddr_8723AU(struct rtw_adapter *padapter,
 	}
 
 	RT_TRACE(_module_hci_hal_init_c_, _drv_notice_,
-		 ("Hal_EfuseParseMACAddr_8723AU: Permanent Address =%02x:%02x:"
-		  "%02x:%02x:%02x:%02x\n",
-		  pEEPROM->mac_addr[0], pEEPROM->mac_addr[1],
-		  pEEPROM->mac_addr[2], pEEPROM->mac_addr[3],
-		  pEEPROM->mac_addr[4], pEEPROM->mac_addr[5]));
+		 "Hal_EfuseParseMACAddr_8723AU: Permanent Address =%02x:%02x:%02x:%02x:%02x:%02x\n",
+		 pEEPROM->mac_addr[0], pEEPROM->mac_addr[1],
+		 pEEPROM->mac_addr[2], pEEPROM->mac_addr[3],
+		 pEEPROM->mac_addr[4], pEEPROM->mac_addr[5]);
 }
 
 static void readAdapterInfo(struct rtw_adapter *padapter)
@@ -1102,13 +1086,6 @@ static void _ReadPROMContent(struct rtw_adapter *Adapter)
 	readAdapterInfo(Adapter);
 }
 
-static void _ReadRFType(struct rtw_adapter *Adapter)
-{
-	struct hal_data_8723a *pHalData = GET_HAL_DATA(Adapter);
-
-	pHalData->rf_chip = RF_6052;
-}
-
 /*  */
 /*	Description: */
 /*		We should set Efuse cell selection to WiFi cell in default. */
@@ -1138,12 +1115,8 @@ void rtl8723a_read_adapter_info(struct rtw_adapter *Adapter)
 
 	hal_EfuseCellSel(Adapter);
 
-	_ReadRFType(Adapter);/* rf_chip -> _InitRFType() */
 	_ReadPROMContent(Adapter);
 
-	/* MSG_8723A("%s()(done), rf_chip = 0x%x, rf_type = 0x%x\n",
-	   __func__, pHalData->rf_chip, pHalData->rf_type); */
-
 	MSG_8723A("<==== _ReadAdapterInfo8723AU in %d ms\n",
 		  jiffies_to_msecs(jiffies - start));
 }
@@ -1192,8 +1165,6 @@ int GetHalDefVar8192CUsb(struct rtw_adapter *Adapter,
 	}
 		break;
 	default:
-		/* RT_TRACE(COMP_INIT, DBG_WARNING, ("GetHalDefVar8192CUsb(): "
-		   "Unkown variable: %d!\n", eVariable)); */
 		bResult = _FAIL;
 		break;
 	}
@@ -1211,7 +1182,7 @@ void rtl8723a_update_ramask(struct rtw_adapter *padapter,
 	struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
 	struct mlme_ext_info *pmlmeinfo = &pmlmeext->mlmext_info;
 	struct wlan_bssid_ex *cur_network = &pmlmeinfo->network;
-	u8 init_rate, networkType, raid;
+	u8 init_rate, networkType, raid, arg;
 	u32 mask, rate_bitmap;
 	u8 shortGIrate = false;
 	int supportRateNum;
@@ -1283,27 +1254,15 @@ void rtl8723a_update_ramask(struct rtw_adapter *padapter,
 
 	init_rate = get_highest_rate_idx23a(mask) & 0x3f;
 
-	if (pHalData->fw_ractrl == true) {
-		u8 arg = 0;
-
-		arg = mac_id & 0x1f;/* MACID */
+	arg = mac_id & 0x1f;/* MACID */
+	arg |= BIT(7);
 
-		arg |= BIT(7);
+	if (shortGIrate == true)
+		arg |= BIT(5);
 
-		if (shortGIrate == true)
-			arg |= BIT(5);
+	DBG_8723A("update raid entry, mask = 0x%x, arg = 0x%x\n", mask, arg);
 
-		DBG_8723A("update raid entry, mask = 0x%x, arg = 0x%x\n",
-			  mask, arg);
-
-		rtl8723a_set_raid_cmd(padapter, mask, arg);
-	} else {
-		if (shortGIrate == true)
-			init_rate |= BIT(6);
-
-		rtl8723au_write8(padapter, (REG_INIDATA_RATE_SEL + mac_id),
-				 init_rate);
-	}
+	rtl8723a_set_raid_cmd(padapter, mask, arg);
 
 	/* set ra_id */
 	psta->raid = raid;
diff --git a/drivers/staging/rtl8723au/hal/usb_ops_linux.c b/drivers/staging/rtl8723au/hal/usb_ops_linux.c
index a6d16ad..371e6b3 100644
--- a/drivers/staging/rtl8723au/hal/usb_ops_linux.c
+++ b/drivers/staging/rtl8723au/hal/usb_ops_linux.c
@@ -297,14 +297,12 @@ urb_submit:
 		case -ENODEV:
 		case -ESHUTDOWN:
 			RT_TRACE(_module_hci_ops_os_c_, _drv_err_,
-				 ("usb_read_port_complete:bSurpriseRemoved ="
-				  "true\n"));
+				 "usb_read_port_complete:bSurpriseRemoved =true\n");
 			/* Fall Through here */
 		case -ENOENT:
 			padapter->bDriverStopped = true;
 			RT_TRACE(_module_hci_ops_os_c_, _drv_err_,
-				 ("usb_read_port_complete:bDriverStopped ="
-				  "true\n"));
+				 "usb_read_port_complete:bDriverStopped =true\n");
 			break;
 		case -EPROTO:
 			break;
@@ -367,16 +365,16 @@ static int recvbuf2recvframe(struct rtw_adapter *padapter, struct sk_buff *pskb)
 
 	do {
 		RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
-			 ("recvbuf2recvframe: rxdesc = offsset 0:0x%08x, "
-			  "4:0x%08x, 8:0x%08x, C:0x%08x\n", prxstat->rxdw0,
-			  prxstat->rxdw1, prxstat->rxdw2, prxstat->rxdw4));
+			 "recvbuf2recvframe: rxdesc = offsset 0:0x%08x, 4:0x%08x, 8:0x%08x, C:0x%08x\n",
+			 prxstat->rxdw0, prxstat->rxdw1,
+			 prxstat->rxdw2, prxstat->rxdw4);
 
 		prxstat = (struct recv_stat *)pbuf;
 
 		precvframe = rtw_alloc_recvframe23a(pfree_recv_queue);
 		if (!precvframe) {
 			RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
-				 ("recvbuf2recvframe: precvframe == NULL\n"));
+				 "recvbuf2recvframe: precvframe == NULL\n");
 			DBG_8723A("%s()-%d: rtw_alloc_recvframe23a() failed! RX "
 				  "Drop!\n", __func__, __LINE__);
 			goto _exit_recvbuf2recvframe;
@@ -400,7 +398,7 @@ static int recvbuf2recvframe(struct rtw_adapter *padapter, struct sk_buff *pskb)
 
 		if (pattrib->pkt_len <= 0 || pkt_offset > transfer_len) {
 			RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
-				 ("recvbuf2recvframe: pkt_len<= 0\n"));
+				 "recvbuf2recvframe: pkt_len<= 0\n");
 			DBG_8723A("%s()-%d: RX Warning!\n",
 				  __func__, __LINE__);
 			rtw_free_recvframe23a(precvframe);
@@ -471,8 +469,7 @@ static int recvbuf2recvframe(struct rtw_adapter *padapter, struct sk_buff *pskb)
 
 		if (rtw_recv_entry23a(precvframe) != _SUCCESS)
 			RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
-				 ("recvbuf2recvframe: rtw_recv_entry23a"
-				  "(precvframe) != _SUCCESS\n"));
+				 "recvbuf2recvframe: rtw_recv_entry23a(precvframe) != _SUCCESS\n");
 
 		pkt_cnt--;
 		transfer_len -= pkt_offset;
@@ -520,16 +517,15 @@ static void usb_read_port_complete(struct urb *purb)
 	struct recv_priv *precvpriv = &padapter->recvpriv;
 
 	RT_TRACE(_module_hci_ops_os_c_, _drv_err_,
-		 ("usb_read_port_complete!!!\n"));
+		 "usb_read_port_complete!!!\n");
 
 	precvpriv->rx_pending_cnt--;
 
 	if (padapter->bSurpriseRemoved || padapter->bDriverStopped ||
 	    padapter->bReadPortCancel) {
 		RT_TRACE(_module_hci_ops_os_c_, _drv_err_,
-			 ("usb_read_port_complete:bDriverStopped(%d) OR "
-			  "bSurpriseRemoved(%d)\n", padapter->bDriverStopped,
-			  padapter->bSurpriseRemoved));
+			 "usb_read_port_complete:bDriverStopped(%d) OR bSurpriseRemoved(%d)\n",
+			 padapter->bDriverStopped, padapter->bSurpriseRemoved);
 
 		DBG_8723A("%s()-%d: RX Warning! bDriverStopped(%d) OR "
 			  "bSurpriseRemoved(%d) bReadPortCancel(%d)\n",
@@ -542,9 +538,7 @@ static void usb_read_port_complete(struct urb *purb)
 		if (purb->actual_length > MAX_RECVBUF_SZ ||
 		    purb->actual_length < RXDESC_SIZE) {
 			RT_TRACE(_module_hci_ops_os_c_, _drv_err_,
-				 ("usb_read_port_complete: (purb->actual_"
-				  "length > MAX_RECVBUF_SZ) || (purb->actual_"
-				  "length < RXDESC_SIZE)\n"));
+				 "usb_read_port_complete: (purb->actual_length > MAX_RECVBUF_SZ) || (purb->actual_length < RXDESC_SIZE)\n");
 			rtl8723au_read_port(padapter, 0, precvbuf);
 			DBG_8723A("%s()-%d: RX Warning!\n",
 				  __func__, __LINE__);
@@ -564,8 +558,8 @@ static void usb_read_port_complete(struct urb *purb)
 		}
 	} else {
 		RT_TRACE(_module_hci_ops_os_c_, _drv_err_,
-			 ("usb_read_port_complete : purb->status(%d) != 0 \n",
-			  purb->status));
+			 "usb_read_port_complete : purb->status(%d) != 0\n",
+			 purb->status);
 		skb_put(precvbuf->pskb, purb->actual_length);
 		precvbuf->pskb = NULL;
 
@@ -583,14 +577,12 @@ static void usb_read_port_complete(struct urb *purb)
 		case -ENODEV:
 		case -ESHUTDOWN:
 			RT_TRACE(_module_hci_ops_os_c_, _drv_err_,
-				 ("usb_read_port_complete:bSurprise"
-				  "Removed = true\n"));
+				 "usb_read_port_complete:bSurpriseRemoved = true\n");
 			/* Intentional fall through here */
 		case -ENOENT:
 			padapter->bDriverStopped = true;
 			RT_TRACE(_module_hci_ops_os_c_, _drv_err_,
-				 ("usb_read_port_complete:"
-				  "bDriverStopped = true\n"));
+				 "usb_read_port_complete:bDriverStopped = true\n");
 			break;
 		case -EPROTO:
 		case -EOVERFLOW:
@@ -620,14 +612,13 @@ int rtl8723au_read_port(struct rtw_adapter *adapter, u32 cnt,
 
 	if (adapter->bDriverStopped || adapter->bSurpriseRemoved) {
 		RT_TRACE(_module_hci_ops_os_c_, _drv_err_,
-			 ("usb_read_port:(padapter->bDriverStopped ||"
-			  "padapter->bSurpriseRemoved)!!!\n"));
+			 "usb_read_port:(padapter->bDriverStopped ||padapter->bSurpriseRemoved)!!!\n");
 		return _FAIL;
 	}
 
 	if (!precvbuf) {
 		RT_TRACE(_module_hci_ops_os_c_, _drv_err_,
-			 ("usb_read_port:precvbuf == NULL\n"));
+			 "usb_read_port:precvbuf == NULL\n");
 		return _FAIL;
 	}
 
@@ -638,7 +629,8 @@ int rtl8723au_read_port(struct rtw_adapter *adapter, u32 cnt,
 	if (!precvbuf->pskb) {
 		precvbuf->pskb = netdev_alloc_skb(adapter->pnetdev, MAX_RECVBUF_SZ + RECVBUFF_ALIGN_SZ);
 		if (precvbuf->pskb == NULL) {
-			RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("init_recvbuf(): alloc_skb fail!\n"));
+			RT_TRACE(_module_hci_ops_os_c_, _drv_err_,
+				 "init_recvbuf(): alloc_skb fail!\n");
 			return _FAIL;
 		}
 
@@ -661,8 +653,8 @@ int rtl8723au_read_port(struct rtw_adapter *adapter, u32 cnt,
 	err = usb_submit_urb(purb, GFP_ATOMIC);
 	if ((err) && (err != -EPERM)) {
 		RT_TRACE(_module_hci_ops_os_c_, _drv_err_,
-			 ("cannot submit rx in-token(err = 0x%.8x), URB_STATUS "
-			  "= 0x%.8x", err, purb->status));
+			 "cannot submit rx in-token(err = 0x%.8x), URB_STATUS = 0x%.8x\n",
+			 err, purb->status);
 		DBG_8723A("cannot submit rx in-token(err = 0x%08x), urb_status "
 			  "= %d\n", err, purb->status);
 		ret = _FAIL;
diff --git a/drivers/staging/rtl8723au/include/Hal8723APhyCfg.h b/drivers/staging/rtl8723au/include/Hal8723APhyCfg.h
index 2247d98..bcf3657 100644
--- a/drivers/staging/rtl8723au/include/Hal8723APhyCfg.h
+++ b/drivers/staging/rtl8723au/include/Hal8723APhyCfg.h
@@ -16,9 +16,6 @@
 #ifndef __INC_HAL8723PHYCFG_H__
 #define __INC_HAL8723PHYCFG_H__
 
-/*--------------------------Define Parameters-------------------------------*/
-#define MAX_AGGR_NUM	0x0909
-
 /*------------------------------Define structure----------------------------*/
 enum RF_RADIO_PATH {
 	RF_PATH_A = 0,			/* Radio Path A */
@@ -39,15 +36,6 @@ enum WIRELESS_MODE {
 	WIRELESS_MODE_AC	= BIT(6)
 };
 
-/* BB/RF related */
-enum rf_type_8190p {
-	RF_TYPE_MIN,		/*  0 */
-	RF_8225 = 1,		/*  1 11b/g RF for verification only */
-	RF_8256 = 2,		/*  2 11b/g/n */
-	RF_8258 = 3,		/*  3 11a/b/g/n RF */
-	RF_6052 = 4,		/*  4 11b/g/n RF */
-};
-
 struct bb_reg_define {
 	u32 rfintfs;		/*  set software control: */
 				/*		0x870~0x877[8 bytes] */
diff --git a/drivers/staging/rtl8723au/include/HalVerDef.h b/drivers/staging/rtl8723au/include/HalVerDef.h
index 607b71f..2a0e4ea 100644
--- a/drivers/staging/rtl8723au/include/HalVerDef.h
+++ b/drivers/staging/rtl8723au/include/HalVerDef.h
@@ -51,30 +51,17 @@ enum hal_vendor {
 	CHIP_VENDOR_UMC		=	1,
 };
 
-enum hal_rf_type {
-	RF_TYPE_1T1R	=	0,
-	RF_TYPE_1T2R	=	1,
-	RF_TYPE_2T2R	=	2,
-	RF_TYPE_2T3R	=	3,
-	RF_TYPE_2T4R	=	4,
-	RF_TYPE_3T3R	=	5,
-	RF_TYPE_3T4R	=	6,
-	RF_TYPE_4T4R	=	7,
-};
-
 struct hal_version {
 	enum hal_ic_type	ICType;
 	enum hal_chip_type	ChipType;
 	enum hal_cut_version	CUTVersion;
 	enum hal_vendor		VendorType;
-	enum hal_rf_type	RFType;
 	u8			ROMVer;
 };
 
 /*  Get element */
 #define GET_CVID_IC_TYPE(version)	((version).ICType)
 #define GET_CVID_CHIP_TYPE(version)	((version).ChipType)
-#define GET_CVID_RF_TYPE(version)	((version).RFType)
 #define GET_CVID_MANUFACTUER(version)	((version).VendorType)
 #define GET_CVID_CUT_VERSION(version)	((version).CUTVersion)
 #define GET_CVID_ROM_VERSION(version)	(((version).ROMVer) & ROM_VERSION_MASK)
@@ -108,17 +95,8 @@ struct hal_version {
 #define IS_CHIP_VENDOR_UMC(version)		\
 	((GET_CVID_MANUFACTUER(version) == CHIP_VENDOR_UMC) ? true : false)
 
-#define IS_1T1R(version)			\
-	((GET_CVID_RF_TYPE(version) == RF_TYPE_1T1R) ? true : false)
-#define IS_1T2R(version)			\
-	((GET_CVID_RF_TYPE(version) == RF_TYPE_1T2R) ? true : false)
-#define IS_2T2R(version)			\
-	((GET_CVID_RF_TYPE(version) == RF_TYPE_2T2R) ? true : false)
-
 /* Chip version Macro. -- */
 
-#define IS_92C_SERIAL(version)					\
-	((IS_81XXC(version) && IS_2T2R(version)) ? true : false)
 #define IS_81xxC_VENDOR_UMC_A_CUT(version)			\
 	(IS_81XXC(version)?(IS_CHIP_VENDOR_UMC(version) ?	\
 	(IS_A_CUT(version) ? true : false) : false) : false)
diff --git a/drivers/staging/rtl8723au/include/hal_com.h b/drivers/staging/rtl8723au/include/hal_com.h
index 7c31865..9c50320 100644
--- a/drivers/staging/rtl8723au/include/hal_com.h
+++ b/drivers/staging/rtl8723au/include/hal_com.h
@@ -65,36 +65,6 @@
 #define RATE_36M				BIT(9)
 #define RATE_48M				BIT(10)
 #define RATE_54M				BIT(11)
-/* MCS 1 Spatial Stream */
-#define RATE_MCS0				BIT(12)
-#define RATE_MCS1				BIT(13)
-#define RATE_MCS2				BIT(14)
-#define RATE_MCS3				BIT(15)
-#define RATE_MCS4				BIT(16)
-#define RATE_MCS5				BIT(17)
-#define RATE_MCS6				BIT(18)
-#define RATE_MCS7				BIT(19)
-/* MCS 2 Spatial Stream */
-#define RATE_MCS8				BIT(20)
-#define RATE_MCS9				BIT(21)
-#define RATE_MCS10				BIT(22)
-#define RATE_MCS11				BIT(23)
-#define RATE_MCS12				BIT(24)
-#define RATE_MCS13				BIT(25)
-#define RATE_MCS14				BIT(26)
-#define RATE_MCS15				BIT(27)
-
-/*  ALL CCK Rate */
-#define	RATE_ALL_CCK	(RATR_1M | RATR_2M | RATR_55M | RATR_11M)
-#define	RATE_ALL_OFDM_AG				\
-	(RATR_6M | RATR_9M | RATR_12M | RATR_18M | RATR_24M| \
-	 RATR_36M|RATR_48M|RATR_54M)
-#define	RATE_ALL_OFDM_1SS				\
-	(RATR_MCS0 | RATR_MCS1 | RATR_MCS2 | RATR_MCS3 |	\
-	 RATR_MCS4 | RATR_MCS5 | RATR_MCS6 | RATR_MCS7)
-#define	RATE_ALL_OFDM_2SS				\
-	(RATR_MCS8 | RATR_MCS9 | RATR_MCS10 | RATR_MCS11|	\
-	 RATR_MCS12 | RATR_MCS13 | RATR_MCS14 | RATR_MCS15)
 
 /*------------------------------ Tx Desc definition Macro ------------------------*/
 /* pragma mark -- Tx Desc related definition. -- */
@@ -146,7 +116,6 @@
 #define REG_NOA_DESC_COUNT			0x05EC
 
 #include "HalVerDef.h"
-void dump_chip_info23a(struct hal_version	ChipVersion);
 
 
 u8	/* return the final channel plan decision */
diff --git a/drivers/staging/rtl8723au/include/hal_intf.h b/drivers/staging/rtl8723au/include/hal_intf.h
index 404acb5..b924d47 100644
--- a/drivers/staging/rtl8723au/include/hal_intf.h
+++ b/drivers/staging/rtl8723au/include/hal_intf.h
@@ -18,13 +18,6 @@
 #include <osdep_service.h>
 #include <drv_types.h>
 
-enum RTL871X_HCI_TYPE {
-	RTW_PCIE	= BIT(0),
-	RTW_USB		= BIT(1),
-	RTW_SDIO	= BIT(2),
-	RTW_GSPI	= BIT(3),
-};
-
 enum _CHIP_TYPE {
 	NULL_CHIP_TYPE,
 	RTL8712_8188S_8191S_8192S,
diff --git a/drivers/staging/rtl8723au/include/ieee80211.h b/drivers/staging/rtl8723au/include/ieee80211.h
index cb23cd0..3aa40a3 100644
--- a/drivers/staging/rtl8723au/include/ieee80211.h
+++ b/drivers/staging/rtl8723au/include/ieee80211.h
@@ -171,20 +171,6 @@ struct ieee80211_snap_hdr {
 #define WLAN_REASON_JOIN_WRONG_CHANNEL       65534
 #define WLAN_REASON_EXPIRATION_CHK 65535
 
-
-#define IEEE80211_STATMASK_SIGNAL (1<<0)
-#define IEEE80211_STATMASK_RSSI (1<<1)
-#define IEEE80211_STATMASK_NOISE (1<<2)
-#define IEEE80211_STATMASK_RATE (1<<3)
-#define IEEE80211_STATMASK_WEMASK 0x7
-
-
-#define IEEE80211_CCK_MODULATION    (1<<0)
-#define IEEE80211_OFDM_MODULATION   (1<<1)
-
-#define IEEE80211_24GHZ_BAND     (1<<0)
-#define IEEE80211_52GHZ_BAND     (1<<1)
-
 #define IEEE80211_CCK_RATE_LEN			4
 #define IEEE80211_NUM_OFDM_RATESLEN	8
 
@@ -265,9 +251,6 @@ join_res:
 > 0: TID
 */
 
-#define MAC_FMT "%02x:%02x:%02x:%02x:%02x:%02x"
-#define MAC_ARG(x) ((u8*)(x))[0],((u8*)(x))[1],((u8*)(x))[2],((u8*)(x))[3],((u8*)(x))[4],((u8*)(x))[5]
-
 #define MAXTID	16
 
 #define WME_OUI_TYPE 2
diff --git a/drivers/staging/rtl8723au/include/odm.h b/drivers/staging/rtl8723au/include/odm.h
index 5a0561e..24f2f28 100644
--- a/drivers/staging/rtl8723au/include/odm.h
+++ b/drivers/staging/rtl8723au/include/odm.h
@@ -158,27 +158,6 @@ struct false_alarm_stats {
 	u32	Cnt_BW_LSC;	/* Gary */
 };
 
-struct pri_cca {
-	u8		PriCCA_flag;
-	u8		intf_flag;
-	u8		intf_type;
-	u8		DupRTS_flag;
-	u8		Monitor_flag;
-};
-
-struct rx_hp {
-	u8		RXHP_flag;
-	u8		PSD_func_trigger;
-	u8		PSD_bitmap_RXHP[80];
-	u8		Pre_IGI;
-	u8		Cur_IGI;
-	u8		Pre_pw_th;
-	u8		Cur_pw_th;
-	bool		First_time_enter;
-	bool		RXHP_enable;
-	u8		TP_Mode;
-};
-
 #define ASSOCIATE_ENTRY_NUM					32 /*  Max size of AsocEntry[]. */
 #define	ODM_ASSOCIATE_ENTRY_NUM				ASSOCIATE_ENTRY_NUM
 
@@ -227,7 +206,6 @@ struct sw_ant_sw {
 
 struct edca_turbo {
 	bool bCurrentTurboEDCA;
-	bool bIsCurRDLState;
 	u32	prv_traffic_idx; /*  edca turbo */
 };
 
@@ -298,18 +276,14 @@ enum odm_cmninfo {
 	/*  Fixed value: */
 	/*  */
 
-	ODM_CMNINFO_PLATFORM = 0,
-	ODM_CMNINFO_INTERFACE,				/*  enum odm_interface_def */
-	ODM_CMNINFO_MP_TEST_CHIP,
-	ODM_CMNINFO_IC_TYPE,					/*  enum odm_ic_type_def */
-	ODM_CMNINFO_CUT_VER,					/*  enum odm_cut_version */
-	ODM_CMNINFO_FAB_VER,					/*  enum odm_fab_version */
-	ODM_CMNINFO_RF_TYPE,					/*  enum rf_path_def or enum odm_rf_type? */
-	ODM_CMNINFO_BOARD_TYPE,				/*  enum odm_board_type */
-	ODM_CMNINFO_EXT_LNA,					/*  true */
+	ODM_CMNINFO_MP_TEST_CHIP = 2,
+	ODM_CMNINFO_IC_TYPE,			/*  enum odm_ic_type_def */
+	ODM_CMNINFO_CUT_VER,			/*  enum odm_cut_version */
+	ODM_CMNINFO_FAB_VER,			/*  enum odm_fab_version */
+	ODM_CMNINFO_BOARD_TYPE,			/*  enum odm_board_type */
+	ODM_CMNINFO_EXT_LNA,			/*  true */
 	ODM_CMNINFO_EXT_PA,
 	ODM_CMNINFO_EXT_TRSW,
-	ODM_CMNINFO_PATCH_ID,				/* CUSTOMER ID */
 	ODM_CMNINFO_BINHCT_TEST,
 	ODM_CMNINFO_BWIFI_TEST,
 	ODM_CMNINFO_SMART_CONCURRENT,
@@ -348,29 +322,7 @@ enum odm_cmninfo {
 /*  Define ODM support ability.  ODM_CMNINFO_ABILITY */
 enum {
 	/*  BB ODM section BIT 0-15 */
-	ODM_BB_DIG				= BIT(0),
-	ODM_BB_RA_MASK				= BIT(1),
-	ODM_BB_DYNAMIC_TXPWR			= BIT(2),
-	ODM_BB_FA_CNT				= BIT(3),
-	ODM_BB_RSSI_MONITOR			= BIT(4),
-	ODM_BB_CCK_PD				= BIT(5),
 	ODM_BB_ANT_DIV				= BIT(6),
-	ODM_BB_PWR_SAVE				= BIT(7),
-	ODM_BB_PWR_TRAIN			= BIT(8),
-	ODM_BB_RATE_ADAPTIVE			= BIT(9),
-	ODM_BB_PATH_DIV				= BIT(10),
-	ODM_BB_PSD				= BIT(11),
-	ODM_BB_RXHP				= BIT(12),
-
-	/*  MAC DM section BIT 16-23 */
-	ODM_MAC_EDCA_TURBO			= BIT(16),
-	ODM_MAC_EARLY_MODE			= BIT(17),
-
-	/*  RF ODM section BIT 24-31 */
-	ODM_RF_TX_PWR_TRACK			= BIT(24),
-	ODM_RF_RX_GAIN_TRACK			= BIT(25),
-	ODM_RF_CALIBRATION			= BIT(26),
-
 };
 
 /*	ODM_CMNINFO_INTERFACE */
@@ -409,7 +361,6 @@ enum odm_fab_version {
 	ODM_UMC		=	1,
 };
 
-/*  ODM_CMNINFO_RF_TYPE */
 /*  For example 1T2R (A+AB = BIT0|BIT4|BIT5) */
 enum rf_path_def {
 	ODM_RF_TX_A	=	BIT(0),
@@ -422,18 +373,6 @@ enum rf_path_def {
 	ODM_RF_RX_D	=	BIT(7),
 };
 
-
-enum odm_rf_type {
-	ODM_1T1R	=	0,
-	ODM_1T2R	=	1,
-	ODM_2T2R	=	2,
-	ODM_2T3R	=	3,
-	ODM_2T4R	=	4,
-	ODM_3T3R	=	5,
-	ODM_3T4R	=	6,
-	ODM_4T4R	=	7,
-};
-
 /*  ODM Dynamic common info value definition */
 
 enum odm_mac_phy_mode {
@@ -587,33 +526,6 @@ struct odm_rf_cal_t {
 	u8	bDPPathBOK;
 };
 
-/*  ODM Dynamic common info value definition */
-struct odm_fat_t {
-	u8	Bssid[6];
-	u8	antsel_rx_keep_0;
-	u8	antsel_rx_keep_1;
-	u8	antsel_rx_keep_2;
-	u32	antSumRSSI[7];
-	u32	antRSSIcnt[7];
-	u32	antAveRSSI[7];
-	u8	FAT_State;
-	u32	TrainIdx;
-	u8	antsel_a[ODM_ASSOCIATE_ENTRY_NUM];
-	u8	antsel_b[ODM_ASSOCIATE_ENTRY_NUM];
-	u8	antsel_c[ODM_ASSOCIATE_ENTRY_NUM];
-	u32	MainAnt_Sum[ODM_ASSOCIATE_ENTRY_NUM];
-	u32	AuxAnt_Sum[ODM_ASSOCIATE_ENTRY_NUM];
-	u32	MainAnt_Cnt[ODM_ASSOCIATE_ENTRY_NUM];
-	u32	AuxAnt_Cnt[ODM_ASSOCIATE_ENTRY_NUM];
-	u8	RxIdleAnt;
-	bool	bBecomeLinked;
-};
-
-enum fat_state {
-	FAT_NORMAL_STATE		= 0,
-	FAT_TRAINING_STATE		= 1,
-};
-
 enum ant_dif_type {
 	NO_ANTDIV			= 0xFF,
 	CG_TRX_HW_ANTDIV		= 0x01,
@@ -636,7 +548,6 @@ struct dm_odm_t {
 /*  ODM HANDLE, DRIVER NEEDS NOT TO HOOK------ */
 	bool			bCckHighPower;
 	u8			RFPathRxEnable;		/*  ODM_CMNINFO_RFPATH_ENABLE */
-	u8			ControlChannel;
 /*  ODM HANDLE, DRIVER NEEDS NOT TO HOOK------ */
 
 /* 1  COMMON INFORMATION */
@@ -645,16 +556,12 @@ struct dm_odm_t {
 /* HOOK BEFORE REG INIT----------- */
 	/*  ODM Support Ability DIG/RATR/TX_PWR_TRACK/ ¡K¡K = 1/2/3/¡K */
 	u32			SupportAbility;
-	/*  ODM PCIE/USB/SDIO/GSPI = 0/1/2/3 */
-	u8			SupportInterface;
 	/*  ODM composite or independent. Bit oriented/ 92C+92D+ .... or any other type = 1/2/3/... */
 	u32			SupportICType;
 	/*  Cut Version TestChip/A-cut/B-cut... = 0/1/2/3/... */
 	u8			CutVersion;
 	/*  Fab Version TSMC/UMC = 0/1 */
 	u8			FabVersion;
-	/*  RF Type 4T4R/3T3R/2T2R/1T2R/1T1R/... */
-	u8			RFType;
 	/*  Board Type Normal/HighPower/MiniCard/SLIM/Combo/... = 0/1/2/3/4/... */
 	u8			BoardType;
 	/*  with external LNA  NO/Yes = 0/1 */
@@ -663,7 +570,6 @@ struct dm_odm_t {
 	u8			ExtPA;
 	/*  with external TRSW  NO/Yes = 0/1 */
 	u8			ExtTRSW;
-	u8			PatchID; /* Customer ID */
 	bool			bInHctTest;
 	bool			bWIFITest;
 
@@ -703,14 +609,6 @@ struct dm_odm_t {
 	/*  2012/01/12 MH For MP, we need to reduce one array pointer for default port.?? */
 	struct sta_info *		pODM_StaInfo[ODM_ASSOCIATE_ENTRY_NUM];
 
-	/*  */
-	/*  2012/02/14 MH Add to share 88E ra with other SW team. */
-	/*  We need to colelct all support abilit to a proper area. */
-	/*  */
-	bool				RaSupport88E;
-
-	/*  Define ........... */
-
 	/*  Latest packet phy info (ODM write) */
 	struct odm_phy_dbg_info	 PhyDbgInfo;
 	/* PHY_INFO_88E		PhyInfo; */
@@ -728,11 +626,8 @@ struct dm_odm_t {
 	/*  */
 	/* ODM Structure */
 	/*  */
-	struct odm_fat_t		DM_FatTable;
 	struct dig_t	DM_DigTable;
 	struct dynamic_pwr_sav		DM_PSTable;
-	struct pri_cca	DM_PriCCA;
-	struct rx_hp		DM_RXHP_Table;
 	struct false_alarm_stats	FalseAlmCnt;
 	struct false_alarm_stats	FlaseAlmCntBuddyAdapter;
 	struct sw_ant_sw		DM_SWAT_Table;
@@ -745,32 +640,11 @@ struct dm_odm_t {
 	/*  */
 
 	/* PSD */
-	bool			bUserAssignLevel;
-	u8			RSSI_BT;			/* come from BT */
-	bool			bPSDinProcess;
-
-	/* for rate adaptive, in fact,  88c/92c fw will handle this */
-	u8			bUseRAMask;
-
+	u8			RSSI_BT;		/* come from BT */
 	struct odm_rate_adapt	RateAdaptive;
 
 
 	struct odm_rf_cal_t	RFCalibrateInfo;
-
-	/*  */
-	/*  TX power tracking */
-	/*  */
-	u8			BbSwingIdxOfdm;
-	u8			BbSwingIdxOfdmCurrent;
-	u8			BbSwingIdxOfdmBase;
-	bool			BbSwingFlagOfdm;
-	u8			BbSwingIdxCck;
-	u8			BbSwingIdxCckCurrent;
-	u8			BbSwingIdxCckBase;
-	bool			BbSwingFlagCck;
-	/*  */
-	/*  ODM system resource. */
-	/*  */
 };	/*  DM_Dynamic_Mechanism_Structure */
 
 enum odm_rf_content {
@@ -983,6 +857,4 @@ void ODM_SingleDualAntennaDefaultSetting(struct dm_odm_t *pDM_Odm);
 
 bool ODM_SingleDualAntennaDetection(struct dm_odm_t *pDM_Odm, u8 mode);
 
-void odm_dtc(struct dm_odm_t *pDM_Odm);
-
 #endif
diff --git a/drivers/staging/rtl8723au/include/odm_RegConfig8723A.h b/drivers/staging/rtl8723au/include/odm_RegConfig8723A.h
index a6cfb6d..f2a54d8 100644
--- a/drivers/staging/rtl8723au/include/odm_RegConfig8723A.h
+++ b/drivers/staging/rtl8723au/include/odm_RegConfig8723A.h
@@ -20,9 +20,8 @@ void odm_ConfigRFReg_8723A(struct dm_odm_t *pDM_Odm, u32 Addr, u32 Data,
 
 void odm_ConfigMAC_8723A(struct dm_odm_t *pDM_Odm, u32 Addr, u8 Data);
 
-void odm_ConfigBB_AGC_8723A(struct dm_odm_t *pDM_Odm, u32 Addr,
-			    u32 Bitmask, u32 Data);
+void odm_ConfigBB_AGC_8723A(struct dm_odm_t *pDM_Odm, u32 addr, u32 data);
 
-void odm_ConfigBB_PHY_8723A(struct dm_odm_t *pDM_Odm, u32 Addr, u32 Bitmask, u32 Data);
+void odm_ConfigBB_PHY_8723A(struct dm_odm_t *pDM_Odm, u32 addr, u32 data);
 
 #endif /*  end of SUPPORT */
diff --git a/drivers/staging/rtl8723au/include/odm_interface.h b/drivers/staging/rtl8723au/include/odm_interface.h
index ea35070..1d3bf03 100644
--- a/drivers/staging/rtl8723au/include/odm_interface.h
+++ b/drivers/staging/rtl8723au/include/odm_interface.h
@@ -54,17 +54,6 @@ typedef void (*RT_WORKITEM_CALL_BACK)(struct work_struct *pContext);
 /*  =========== EXtern Function Prototype */
 /*  */
 
-
-u8 ODM_Read1Byte(struct dm_odm_t *pDM_Odm, u32 RegAddr);
-u16 ODM_Read2Byte(struct dm_odm_t *pDM_Odm, u32 RegAddr);
-u32 ODM_Read4Byte(struct dm_odm_t *pDM_Odm, u32 RegAddr);
-void ODM_Write1Byte(struct dm_odm_t *pDM_Odm, u32 RegAddr, u8 Data);
-void ODM_Write2Byte(struct dm_odm_t *pDM_Odm, u32 RegAddr, u16 Data);
-void ODM_Write4Byte(struct dm_odm_t *pDM_Odm, u32 RegAddr, u32 Data);
-void ODM_SetMACReg(struct dm_odm_t *pDM_Odm, u32 RegAddr, u32 BitMask, u32 Data);
-u32 ODM_GetMACReg(struct dm_odm_t *pDM_Odm, u32 RegAddr, u32 BitMask);
-void ODM_SetBBReg(struct dm_odm_t *pDM_Odm, u32 RegAddr, u32 BitMask, u32 Data);
-u32 ODM_GetBBReg(struct dm_odm_t *pDM_Odm, u32 RegAddr, u32 BitMask);
 void ODM_SetRFReg(struct dm_odm_t *pDM_Odm, enum RF_RADIO_PATH eRFPath,
 		  u32 RegAddr, u32 BitMask, u32 Data);
 u32 ODM_GetRFReg(struct dm_odm_t *pDM_Odm, enum RF_RADIO_PATH eRFPath,
diff --git a/drivers/staging/rtl8723au/include/rtl8723a_hal.h b/drivers/staging/rtl8723au/include/rtl8723a_hal.h
index e146336..ad3a442 100644
--- a/drivers/staging/rtl8723au/include/rtl8723a_hal.h
+++ b/drivers/staging/rtl8723au/include/rtl8723a_hal.h
@@ -270,7 +270,6 @@ struct hal_data_8723a {
 	u16	BasicRateSet;
 
 	/* rf_ctrl */
-	u8	rf_chip;
 	u8	rf_type;
 	u8	NumTotalRFPath;
 
@@ -348,7 +347,6 @@ struct hal_data_8723a {
 	/* for host message to fw */
 	u8	LastHMEBoxNum;
 
-	u8	fw_ractrl;
 	u8	RegTxPause;
 	/*  Beacon function related global variable. */
 	u8	RegFwHwTxQCtrl;
diff --git a/drivers/staging/rtl8723au/include/rtw_debug.h b/drivers/staging/rtl8723au/include/rtw_debug.h
index b6b0173..159183e 100644
--- a/drivers/staging/rtl8723au/include/rtw_debug.h
+++ b/drivers/staging/rtl8723au/include/rtw_debug.h
@@ -163,14 +163,13 @@
 
 extern u32 GlobalDebugLevel23A;
 
+__printf(3, 4)
+void rt_trace(int comp, int level, const char *fmt, ...);
 
-#define RT_TRACE(_Comp, _Level, Fmt)					\
+#define RT_TRACE(_Comp, _Level, Fmt, ...)				\
 do {									\
-	if (_Level <= GlobalDebugLevel23A) {				\
-		pr_info("%s [0x%08x,%d]", DRIVER_PREFIX,		\
-			 (unsigned int)_Comp, _Level);			\
-		pr_info Fmt;						\
-	}								\
+	if (_Level <= GlobalDebugLevel23A)				\
+		rt_trace(_Comp, _Level, Fmt, ##__VA_ARGS__);		\
 } while (0)
 
 #define RT_PRINT_DATA(_Comp, _Level, _TitleString, _HexData,		\
diff --git a/drivers/staging/rtl8723au/os_dep/ioctl_cfg80211.c b/drivers/staging/rtl8723au/os_dep/ioctl_cfg80211.c
index 537bd82..b139ed4 100644
--- a/drivers/staging/rtl8723au/os_dep/ioctl_cfg80211.c
+++ b/drivers/staging/rtl8723au/os_dep/ioctl_cfg80211.c
@@ -729,7 +729,7 @@ static int rtw_cfg80211_set_encryption(struct net_device *dev, u8 key_index,
 	if (keyparms->cipher == WLAN_CIPHER_SUITE_WEP40 ||
 	    keyparms->cipher == WLAN_CIPHER_SUITE_WEP104) {
 		RT_TRACE(_module_rtl871x_ioctl_os_c, _drv_err_,
-			 ("wpa_set_encryption, crypt.alg = WEP\n"));
+			 "wpa_set_encryption, crypt.alg = WEP\n");
 		DBG_8723A("wpa_set_encryption, crypt.alg = WEP\n");
 
 		if (psecuritypriv->bWepDefaultKeyIdxSet == 0) {
@@ -1076,8 +1076,7 @@ static int cfg80211_rtw_get_station(struct wiphy *wiphy,
 		ret = -ENOENT;
 		goto exit;
 	}
-	DBG_8723A("%s(%s): mac =" MAC_FMT "\n", __func__, ndev->name,
-		  MAC_ARG(mac));
+	DBG_8723A("%s(%s): mac=%pM\n", __func__, ndev->name, mac);
 
 	/* for infra./P2PClient mode */
 	if (check_fwstate(pmlmepriv, WIFI_STATION_STATE) &&
@@ -1085,8 +1084,8 @@ static int cfg80211_rtw_get_station(struct wiphy *wiphy,
 		struct wlan_network *cur_network = &pmlmepriv->cur_network;
 
 		if (!ether_addr_equal(mac, cur_network->network.MacAddress)) {
-			DBG_8723A("%s, mismatch bssid =" MAC_FMT "\n", __func__,
-				  MAC_ARG(cur_network->network.MacAddress));
+			DBG_8723A("%s, mismatch bssid=%pM\n",
+				  __func__, cur_network->network.MacAddress);
 			ret = -ENOENT;
 			goto exit;
 		}
@@ -1128,14 +1127,14 @@ static int cfg80211_infrastructure_mode(struct rtw_adapter *padapter,
 	old_mode = cur_network->network.ifmode;
 
 	RT_TRACE(_module_rtl871x_ioctl_set_c_, _drv_notice_,
-		 ("+%s: old =%d new =%d fw_state = 0x%08x\n", __func__,
-		  old_mode, ifmode, get_fwstate(pmlmepriv)));
+		 "+%s: old =%d new =%d fw_state = 0x%08x\n", __func__,
+		 old_mode, ifmode, get_fwstate(pmlmepriv));
 
 	if (old_mode != ifmode) {
 		spin_lock_bh(&pmlmepriv->lock);
 
 		RT_TRACE(_module_rtl871x_ioctl_set_c_, _drv_info_,
-			 (" change mode!"));
+			 "change mode!\n");
 
 		if (old_mode == NL80211_IFTYPE_AP ||
 		    old_mode == NL80211_IFTYPE_P2P_GO) {
@@ -1195,10 +1194,6 @@ static int cfg80211_infrastructure_mode(struct rtw_adapter *padapter,
 
 		/* SecClearAllKeys(adapter); */
 
-		/* RT_TRACE(COMP_OID_SET, DBG_LOUD,
-		   ("set_infrastructure: fw_state:%x after changing mode\n", */
-		/* get_fwstate(pmlmepriv))); */
-
 		spin_unlock_bh(&pmlmepriv->lock);
 	}
 
@@ -1603,7 +1598,7 @@ static int rtw_cfg80211_set_wpa_ie(struct rtw_adapter *padapter, const u8 *pie,
 			  pie[i + 4], pie[i + 5], pie[i + 6], pie[i + 7]);
 	if (ielen < RSN_HEADER_LEN) {
 		RT_TRACE(_module_rtl871x_ioctl_os_c, _drv_err_,
-			 ("Ie len too short %d\n", (int)ielen));
+			 "Ie len too short %d\n", (int)ielen);
 		ret = -1;
 		goto exit;
 	}
@@ -1726,11 +1721,10 @@ static int rtw_cfg80211_set_wpa_ie(struct rtw_adapter *padapter, const u8 *pie,
 		rtl8723a_off_rcr_am(padapter);
 
 	RT_TRACE(_module_rtl871x_ioctl_os_c, _drv_info_,
-		 ("rtw_set_wpa_ie: pairwise_cipher = 0x%08x padapter->"
-		  "securitypriv.ndisencryptstatus =%d padapter->"
-		  "securitypriv.ndisauthtype =%d\n", pairwise_cipher,
-		  padapter->securitypriv.ndisencryptstatus,
-		  padapter->securitypriv.ndisauthtype));
+		 "rtw_set_wpa_ie: pairwise_cipher = 0x%08x padapter->securitypriv.ndisencryptstatus =%d padapter->securitypriv.ndisauthtype =%d\n",
+		 pairwise_cipher,
+		 padapter->securitypriv.ndisencryptstatus,
+		 padapter->securitypriv.ndisauthtype);
 
 exit:
 	if (ret)
@@ -1746,7 +1740,7 @@ static int rtw_cfg80211_add_wep(struct rtw_adapter *padapter,
 
 	if (keyid >= NUM_WEP_KEYS) {
 		RT_TRACE(_module_rtl871x_ioctl_set_c_, _drv_err_,
-			 ("%s:keyid>4 =>fail\n", __func__));
+			 "%s:keyid>4 =>fail\n", __func__);
 		res = _FAIL;
 		goto exit;
 	}
@@ -1755,45 +1749,45 @@ static int rtw_cfg80211_add_wep(struct rtw_adapter *padapter,
 	case WLAN_KEY_LEN_WEP40:
 		psecuritypriv->dot11PrivacyAlgrthm = WLAN_CIPHER_SUITE_WEP40;
 		RT_TRACE(_module_rtl871x_ioctl_set_c_, _drv_info_,
-			 ("%s:wep->KeyLength = 5\n", __func__));
+			 "%s:wep->KeyLength = 5\n", __func__);
 		break;
 	case WLAN_KEY_LEN_WEP104:
 		psecuritypriv->dot11PrivacyAlgrthm = WLAN_CIPHER_SUITE_WEP104;
 		RT_TRACE(_module_rtl871x_ioctl_set_c_, _drv_info_,
-			 ("%s:wep->KeyLength = 13\n", __func__));
+			 "%s:wep->KeyLength = 13\n", __func__);
 		break;
 	default:
 		psecuritypriv->dot11PrivacyAlgrthm = 0;
 		RT_TRACE(_module_rtl871x_ioctl_set_c_, _drv_info_,
-			 ("%s:wep->KeyLength!= 5 or 13\n", __func__));
+			 "%s:wep->KeyLength!= 5 or 13\n", __func__);
 		res = _FAIL;
 		goto exit;
 	}
 
 	RT_TRACE(_module_rtl871x_ioctl_set_c_, _drv_info_,
-		 ("%s:before memcpy, wep->KeyLength = 0x%x keyid =%x\n",
-		  __func__, wep->keylen, keyid));
+		 "%s:before memcpy, wep->KeyLength = 0x%x keyid =%x\n",
+		 __func__, wep->keylen, keyid);
 
 	memcpy(&psecuritypriv->wep_key[keyid], wep, sizeof(struct rtw_wep_key));
 
 	psecuritypriv->dot11PrivacyKeyIndex = keyid;
 
 	RT_TRACE(_module_rtl871x_ioctl_set_c_, _drv_info_,
-		 ("%s:security key material : "
-		  "%x %x %x %x %x %x %x %x %x %x %x %x %x\n", __func__,
-		  psecuritypriv->wep_key[keyid].key[0],
-		  psecuritypriv->wep_key[keyid].key[1],
-		  psecuritypriv->wep_key[keyid].key[2],
-		  psecuritypriv->wep_key[keyid].key[3],
-		  psecuritypriv->wep_key[keyid].key[4],
-		  psecuritypriv->wep_key[keyid].key[5],
-		  psecuritypriv->wep_key[keyid].key[6],
-		  psecuritypriv->wep_key[keyid].key[7],
-		  psecuritypriv->wep_key[keyid].key[8],
-		  psecuritypriv->wep_key[keyid].key[9],
-		  psecuritypriv->wep_key[keyid].key[10],
-		  psecuritypriv->wep_key[keyid].key[11],
-		  psecuritypriv->wep_key[keyid].key[12]));
+		 "%s:security key material : %x %x %x %x %x %x %x %x %x %x %x %x %x\n",
+		 __func__,
+		 psecuritypriv->wep_key[keyid].key[0],
+		 psecuritypriv->wep_key[keyid].key[1],
+		 psecuritypriv->wep_key[keyid].key[2],
+		 psecuritypriv->wep_key[keyid].key[3],
+		 psecuritypriv->wep_key[keyid].key[4],
+		 psecuritypriv->wep_key[keyid].key[5],
+		 psecuritypriv->wep_key[keyid].key[6],
+		 psecuritypriv->wep_key[keyid].key[7],
+		 psecuritypriv->wep_key[keyid].key[8],
+		 psecuritypriv->wep_key[keyid].key[9],
+		 psecuritypriv->wep_key[keyid].key[10],
+		 psecuritypriv->wep_key[keyid].key[11],
+		 psecuritypriv->wep_key[keyid].key[12]);
 
 	res = rtw_set_key23a(padapter, psecuritypriv, keyid, 1);
 
@@ -1815,7 +1809,7 @@ static int rtw_set_ssid(struct rtw_adapter *padapter,
 
 	if (padapter->hw_init_completed == false) {
 		RT_TRACE(_module_rtl871x_ioctl_set_c_, _drv_err_,
-			 ("set_ssid: hw_init_completed == false =>exit!!!\n"));
+			 "set_ssid: hw_init_completed == false =>exit!!!\n");
 		status = _FAIL;
 		goto exit;
 	}
@@ -1828,7 +1822,7 @@ static int rtw_set_ssid(struct rtw_adapter *padapter,
 
 	if (check_fwstate(pmlmepriv, _FW_LINKED|WIFI_ADHOC_MASTER_STATE)) {
 		RT_TRACE(_module_rtl871x_ioctl_set_c_, _drv_info_,
-			 ("set_ssid: _FW_LINKED||WIFI_ADHOC_MASTER_STATE\n"));
+			 "set_ssid: _FW_LINKED||WIFI_ADHOC_MASTER_STATE\n");
 
 		if (pmlmepriv->assoc_ssid.ssid_len ==
 		    newnetwork->network.Ssid.ssid_len &&
@@ -1837,9 +1831,9 @@ static int rtw_set_ssid(struct rtw_adapter *padapter,
 			    newnetwork->network.Ssid.ssid_len)) {
 			if (!check_fwstate(pmlmepriv, WIFI_STATION_STATE)) {
 				RT_TRACE(_module_rtl871x_ioctl_set_c_,
-					 _drv_err_, ("New SSID is same SSID, "
-						     "fw_state = 0x%08x\n",
-						     get_fwstate(pmlmepriv)));
+					 _drv_err_,
+					 "New SSID is same SSID, fw_state = 0x%08x\n",
+					 get_fwstate(pmlmepriv));
 
 				if (rtw_is_same_ibss23a(padapter, pnetwork)) {
 					/*
@@ -1875,15 +1869,15 @@ static int rtw_set_ssid(struct rtw_adapter *padapter,
 			}
 		} else {
 			RT_TRACE(_module_rtl871x_ioctl_set_c_, _drv_info_,
-				 ("Set SSID not the same ssid\n"));
+				 "Set SSID not the same ssid\n");
 			RT_TRACE(_module_rtl871x_ioctl_set_c_, _drv_info_,
-				 ("set_ssid =[%s] len = 0x%x\n",
-				  newnetwork->network.Ssid.ssid,
-				  newnetwork->network.Ssid.ssid_len));
+				 "set_ssid =[%s] len = 0x%x\n",
+				 newnetwork->network.Ssid.ssid,
+				 newnetwork->network.Ssid.ssid_len);
 			RT_TRACE(_module_rtl871x_ioctl_set_c_, _drv_info_,
-				 ("assoc_ssid =[%s] len = 0x%x\n",
-				  pmlmepriv->assoc_ssid.ssid,
-				  pmlmepriv->assoc_ssid.ssid_len));
+				 "assoc_ssid =[%s] len = 0x%x\n",
+				 pmlmepriv->assoc_ssid.ssid,
+				 pmlmepriv->assoc_ssid.ssid_len);
 
 			rtw_disassoc_cmd23a(padapter, 0, true);
 
@@ -1947,7 +1941,7 @@ release_mlme_lock:
 
 exit:
 	RT_TRACE(_module_rtl871x_ioctl_set_c_, _drv_err_,
-		 ("-%s: status =%d\n", __func__, status));
+		 "-%s: status =%d\n", __func__, status);
 
 	return status;
 }
@@ -1989,7 +1983,7 @@ static int cfg80211_rtw_connect(struct wiphy *wiphy, struct net_device *ndev,
 	DBG_8723A("ssid =%s, len =%zu\n", sme->ssid, sme->ssid_len);
 
 	if (sme->bssid)
-		DBG_8723A("bssid =" MAC_FMT "\n", MAC_ARG(sme->bssid));
+		DBG_8723A("bssid=%pM\n", sme->bssid);
 
 	if (check_fwstate(pmlmepriv, _FW_UNDER_LINKING)) {
 		ret = -EBUSY;
@@ -2523,8 +2517,8 @@ static int rtw_cfg80211_monitor_if_xmit_entry(struct sk_buff *skb,
 
 		mgmt = (struct ieee80211_mgmt *)dot11_hdr;
 
-		DBG_8723A("RTW_Tx:da =" MAC_FMT " via %s(%s)\n",
-			  MAC_ARG(mgmt->da), __func__, ndev->name);
+		DBG_8723A("RTW_Tx:da=%pM via %s(%s)\n",
+			  mgmt->da, __func__, ndev->name);
 		category = mgmt->u.action.category;
 		action = mgmt->u.action.u.wme_action.action_code;
 		DBG_8723A("RTW_Tx:category(%u), action(%u)\n",
@@ -2877,7 +2871,7 @@ static int cfg80211_rtw_del_station(struct wiphy *wiphy,
 		return ret;
 	}
 
-	DBG_8723A("free sta macaddr =" MAC_FMT "\n", MAC_ARG(mac));
+	DBG_8723A("free sta macaddr=%pM\n", mac);
 
 	if (is_broadcast_ether_addr(mac))
 		return -EINVAL;
@@ -3053,8 +3047,7 @@ static int cfg80211_rtw_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
 	cfg80211_mgmt_tx_status(padapter->rtw_wdev, *cookie, buf, len, ack,
 				GFP_KERNEL);
 
-	DBG_8723A("RTW_Tx:tx_ch =%d, da =" MAC_FMT "\n", tx_ch,
-		  MAC_ARG(hdr->da));
+	DBG_8723A("RTW_Tx:tx_ch =%d, da =%pM\n", tx_ch, hdr->da);
 	category = hdr->u.action.category;
 	action = hdr->u.action.u.wme_action.action_code;
 	DBG_8723A("RTW_Tx:category(%u), action(%u)\n", category, action);
diff --git a/drivers/staging/rtl8723au/os_dep/os_intfs.c b/drivers/staging/rtl8723au/os_dep/os_intfs.c
index 1b23eb1..8369636 100644
--- a/drivers/staging/rtl8723au/os_dep/os_intfs.c
+++ b/drivers/staging/rtl8723au/os_dep/os_intfs.c
@@ -34,7 +34,7 @@ MODULE_FIRMWARE("rtlwifi/rtl8723aufw_B.bin");
 MODULE_FIRMWARE("rtlwifi/rtl8723aufw_B_NoBT.bin");
 
 /* module param defaults */
-static int rtw_chip_version = 0x00;
+static int rtw_chip_version;
 static int rtw_rfintfs = HWPI;
 static int rtw_debug = 1;
 
@@ -342,7 +342,7 @@ int rtw_init_netdev23a_name23a(struct net_device *pnetdev, const char *ifname)
 {
 	if (dev_alloc_name(pnetdev, ifname) < 0) {
 		RT_TRACE(_module_os_intfs_c_, _drv_err_,
-			 ("dev_alloc_name, fail!\n"));
+			 "dev_alloc_name, fail!\n");
 	}
 	netif_carrier_off(pnetdev);
 	return 0;
@@ -357,7 +357,7 @@ struct net_device *rtw_init_netdev23a(struct rtw_adapter *old_padapter)
 	struct rtw_adapter *padapter;
 	struct net_device *pnetdev;
 
-	RT_TRACE(_module_os_intfs_c_, _drv_info_, ("+init_net_dev\n"));
+	RT_TRACE(_module_os_intfs_c_, _drv_info_, "+init_net_dev\n");
 
 	pnetdev = alloc_etherdev_mq(sizeof(struct rtw_adapter), 4);
 	if (!pnetdev)
@@ -456,11 +456,11 @@ int rtw_init_drv_sw23a(struct rtw_adapter *padapter)
 {
 	int ret8 = _SUCCESS;
 
-	RT_TRACE(_module_os_intfs_c_, _drv_info_, ("+rtw_init_drv_sw23a\n"));
+	RT_TRACE(_module_os_intfs_c_, _drv_info_, "+rtw_init_drv_sw23a\n");
 
 	if (rtw_init_cmd_priv23a(&padapter->cmdpriv) == _FAIL) {
 		RT_TRACE(_module_os_intfs_c_, _drv_err_,
-			 ("\n Can't init cmd_priv\n"));
+			 "Can't init cmd_priv\n");
 		ret8 = _FAIL;
 		goto exit;
 	}
@@ -469,14 +469,14 @@ int rtw_init_drv_sw23a(struct rtw_adapter *padapter)
 
 	if (rtw_init_evt_priv23a(&padapter->evtpriv) == _FAIL) {
 		RT_TRACE(_module_os_intfs_c_, _drv_err_,
-			 ("\n Can't init evt_priv\n"));
+			 "Can't init evt_priv\n");
 		ret8 = _FAIL;
 		goto exit;
 	}
 
 	if (rtw_init_mlme_priv23a(padapter) == _FAIL) {
 		RT_TRACE(_module_os_intfs_c_, _drv_err_,
-			 ("\n Can't init mlme_priv\n"));
+			 "Can't init mlme_priv\n");
 		ret8 = _FAIL;
 		goto exit;
 	}
@@ -484,7 +484,7 @@ int rtw_init_drv_sw23a(struct rtw_adapter *padapter)
 
 	if (init_mlme_ext_priv23a(padapter) == _FAIL) {
 		RT_TRACE(_module_os_intfs_c_, _drv_err_,
-			 ("\n Can't init mlme_ext_priv\n"));
+			 "Can't init mlme_ext_priv\n");
 		ret8 = _FAIL;
 		goto exit;
 	}
@@ -521,40 +521,40 @@ int rtw_init_drv_sw23a(struct rtw_adapter *padapter)
 
 exit:
 
-	RT_TRACE(_module_os_intfs_c_, _drv_info_, ("-rtw_init_drv_sw23a\n"));
+	RT_TRACE(_module_os_intfs_c_, _drv_info_, "-rtw_init_drv_sw23a\n");
 	return ret8;
 }
 
 void rtw_cancel_all_timer23a(struct rtw_adapter *padapter)
 {
 	RT_TRACE(_module_os_intfs_c_, _drv_info_,
-		 ("+rtw_cancel_all_timer23a\n"));
+		 "+rtw_cancel_all_timer23a\n");
 
 	del_timer_sync(&padapter->mlmepriv.assoc_timer);
 	RT_TRACE(_module_os_intfs_c_, _drv_info_,
-		 ("%s:cancel association timer complete!\n", __func__));
+		 "%s:cancel association timer complete!\n", __func__);
 
 	del_timer_sync(&padapter->mlmepriv.scan_to_timer);
 	RT_TRACE(_module_os_intfs_c_, _drv_info_,
-		 ("%s:cancel scan_to_timer!\n", __func__));
+		 "%s:cancel scan_to_timer!\n", __func__);
 
 	del_timer_sync(&padapter->mlmepriv.dynamic_chk_timer);
 	RT_TRACE(_module_os_intfs_c_, _drv_info_,
-		 ("%s:cancel dynamic_chk_timer!\n", __func__));
+		 "%s:cancel dynamic_chk_timer!\n", __func__);
 
 	del_timer_sync(&padapter->pwrctrlpriv.pwr_state_check_timer);
 
 	del_timer_sync(&padapter->mlmepriv.set_scan_deny_timer);
 	rtw_clear_scan_deny(padapter);
 	RT_TRACE(_module_os_intfs_c_, _drv_info_,
-		 ("%s:cancel set_scan_deny_timer!\n", __func__));
+		 "%s:cancel set_scan_deny_timer!\n", __func__);
 
 	del_timer_sync(&padapter->recvpriv.signal_stat_timer);
 }
 
 int rtw_free_drv_sw23a(struct rtw_adapter *padapter)
 {
-	RT_TRACE(_module_os_intfs_c_, _drv_info_, ("==>rtw_free_drv_sw23a"));
+	RT_TRACE(_module_os_intfs_c_, _drv_info_, "==>rtw_free_drv_sw23a\n");
 
 	free_mlme_ext_priv23a(&padapter->mlmeextpriv);
 
@@ -574,7 +574,7 @@ int rtw_free_drv_sw23a(struct rtw_adapter *padapter)
 	kfree(padapter->HalData);
 	padapter->HalData = NULL;
 
-	RT_TRACE(_module_os_intfs_c_, _drv_info_, ("-rtw_free_drv_sw23a\n"));
+	RT_TRACE(_module_os_intfs_c_, _drv_info_, "-rtw_free_drv_sw23a\n");
 	return _SUCCESS;
 }
 
@@ -594,8 +594,8 @@ static int _rtw_drv_register_netdev(struct rtw_adapter *padapter, char *name)
 		ret = _FAIL;
 		goto error_register_netdev;
 	}
-	DBG_8723A("%s, MAC Address (if%d) = " MAC_FMT "\n", __func__,
-		  (padapter->iface_id + 1), MAC_ARG(pnetdev->dev_addr));
+	DBG_8723A("%s, MAC Address (if%d) = %pM\n",
+		  __func__, padapter->iface_id + 1, pnetdev->dev_addr);
 	return ret;
 
 error_register_netdev:
@@ -647,7 +647,7 @@ int netdev_open23a(struct net_device *pnetdev)
 	int ret = 0;
 	int status;
 
-	RT_TRACE(_module_os_intfs_c_, _drv_info_, ("+871x_drv - dev_open\n"));
+	RT_TRACE(_module_os_intfs_c_, _drv_info_, "+871x_drv - dev_open\n");
 	DBG_8723A("+871x_drv - drv_open, bup =%d\n", padapter->bup);
 
 	mutex_lock(&adapter_to_dvobj(padapter)->hw_init_mutex);
@@ -662,12 +662,11 @@ int netdev_open23a(struct net_device *pnetdev)
 		status = rtl8723au_hal_init(padapter);
 		if (status == _FAIL) {
 			RT_TRACE(_module_os_intfs_c_, _drv_err_,
-				 ("rtl871x_hal_init(): Can't init h/w!\n"));
+				 "rtl871x_hal_init(): Can't init h/w!\n");
 			goto netdev_open23a_error;
 		}
 
-		DBG_8723A("MAC Address = "MAC_FMT"\n",
-			  MAC_ARG(pnetdev->dev_addr));
+		DBG_8723A("MAC Address = %pM\n", pnetdev->dev_addr);
 
 		if (init_hw_mlme_ext23a(padapter) == _FAIL) {
 			DBG_8723A("can't init mlme_ext_priv\n");
@@ -695,7 +694,7 @@ int netdev_open23a(struct net_device *pnetdev)
 	else
 		netif_tx_wake_all_queues(pnetdev);
 
-	RT_TRACE(_module_os_intfs_c_, _drv_info_, ("-871x_drv - dev_open\n"));
+	RT_TRACE(_module_os_intfs_c_, _drv_info_, "-871x_drv - dev_open\n");
 	DBG_8723A("-871x_drv - drv_open, bup =%d\n", padapter->bup);
 exit:
 	mutex_unlock(&adapter_to_dvobj(padapter)->hw_init_mutex);
@@ -708,7 +707,7 @@ netdev_open23a_error:
 	netif_tx_stop_all_queues(pnetdev);
 
 	RT_TRACE(_module_os_intfs_c_, _drv_err_,
-		 ("-871x_drv - dev_open, fail!\n"));
+		 "-871x_drv - dev_open, fail!\n");
 	DBG_8723A("-871x_drv - drv_open fail, bup =%d\n", padapter->bup);
 
 	ret = -1;
@@ -729,7 +728,7 @@ static int ips_netdrv_open(struct rtw_adapter *padapter)
 	status = rtl8723au_hal_init(padapter);
 	if (status == _FAIL) {
 		RT_TRACE(_module_os_intfs_c_, _drv_err_,
-			 ("ips_netdrv_open(): Can't init h/w!\n"));
+			 "ips_netdrv_open(): Can't init h/w!\n");
 		goto netdev_open23a_error;
 	}
 
@@ -807,7 +806,7 @@ static int netdev_close(struct net_device *pnetdev)
 {
 	struct rtw_adapter *padapter = netdev_priv(pnetdev);
 
-	RT_TRACE(_module_os_intfs_c_, _drv_info_, ("+871x_drv - drv_close\n"));
+	RT_TRACE(_module_os_intfs_c_, _drv_info_, "+871x_drv - drv_close\n");
 
 	padapter->net_closed = true;
 
@@ -835,7 +834,7 @@ static int netdev_close(struct net_device *pnetdev)
 
 	rtw_scan_abort23a(padapter);
 
-	RT_TRACE(_module_os_intfs_c_, _drv_info_, ("-871x_drv - drv_close\n"));
+	RT_TRACE(_module_os_intfs_c_, _drv_info_, "-871x_drv - drv_close\n");
 	DBG_8723A("-871x_drv - drv_close, bup =%d\n", padapter->bup);
 
 	return 0;
diff --git a/drivers/staging/rtl8723au/os_dep/recv_linux.c b/drivers/staging/rtl8723au/os_dep/recv_linux.c
index bcd970b..084b506 100644
--- a/drivers/staging/rtl8723au/os_dep/recv_linux.c
+++ b/drivers/staging/rtl8723au/os_dep/recv_linux.c
@@ -81,19 +81,19 @@ int rtw_recv_indicatepkt23a(struct rtw_adapter *padapter,
 	skb = precv_frame->pkt;
 	if (!skb) {
 		RT_TRACE(_module_recv_osdep_c_, _drv_err_,
-			 ("rtw_recv_indicatepkt23a():skb == NULL!!!!\n"));
+			 "rtw_recv_indicatepkt23a():skb == NULL!!!!\n");
 		goto _recv_indicatepkt_drop;
 	}
 
 	RT_TRACE(_module_recv_osdep_c_, _drv_info_,
-		 ("rtw_recv_indicatepkt23a():skb != NULL !!!\n"));
+		 "rtw_recv_indicatepkt23a():skb != NULL !!!\n");
 	RT_TRACE(_module_recv_osdep_c_, _drv_info_,
-		 ("rtw_recv_indicatepkt23a():precv_frame->hdr.rx_data =%p\n",
-		  precv_frame->pkt->data));
+		 "rtw_recv_indicatepkt23a():precv_frame->hdr.rx_data =%p\n",
+		 precv_frame->pkt->data);
 	RT_TRACE(_module_recv_osdep_c_, _drv_info_,
-		 ("\n skb->head =%p skb->data =%p skb->tail =%p skb->end =%p skb->len =%d\n",
-		  skb->head, skb->data,
-		  skb_tail_pointer(skb), skb_end_pointer(skb), skb->len));
+		 "skb->head =%p skb->data =%p skb->tail =%p skb->end =%p skb->len =%d\n",
+		 skb->head, skb->data,
+		 skb_tail_pointer(skb), skb_end_pointer(skb), skb->len);
 
 	if (check_fwstate(pmlmepriv, WIFI_AP_STATE) == true) {
 		struct sk_buff *pskb2 = NULL;
@@ -148,7 +148,7 @@ _recv_indicatepkt_end:
 	rtw_free_recvframe23a(precv_frame);
 
 	RT_TRACE(_module_recv_osdep_c_, _drv_info_,
-		 ("\n rtw_recv_indicatepkt23a :after netif_rx!!!!\n"));
+		 "rtw_recv_indicatepkt23a :after netif_rx!!!!\n");
 	return _SUCCESS;
 
 _recv_indicatepkt_drop:
diff --git a/drivers/staging/rtl8723au/os_dep/usb_intf.c b/drivers/staging/rtl8723au/os_dep/usb_intf.c
index 05755b8..27b3a5b 100644
--- a/drivers/staging/rtl8723au/os_dep/usb_intf.c
+++ b/drivers/staging/rtl8723au/os_dep/usb_intf.c
@@ -159,7 +159,7 @@ static struct dvobj_priv *usb_dvobj_init(struct usb_interface *usb_intf)
 
 	if (rtw_init_intf_priv(pdvobjpriv) == _FAIL) {
 		RT_TRACE(_module_os_intfs_c_, _drv_err_,
-			 ("\n Can't INIT rtw_init_intf_priv\n"));
+			 "Can't INIT rtw_init_intf_priv\n");
 		goto free_dvobj;
 	}
 	/* 3 misc */
@@ -213,7 +213,7 @@ static void usb_dvobj_deinit(struct usb_interface *usb_intf)
 
 void rtl8723a_usb_intf_stop(struct rtw_adapter *padapter)
 {
-	RT_TRACE(_module_hci_intfs_c_, _drv_err_, ("+usb_intf_stop\n"));
+	RT_TRACE(_module_hci_intfs_c_, _drv_err_, "+usb_intf_stop\n");
 
 	/* disable_hw_interrupt */
 	if (!padapter->bSurpriseRemoved) {
@@ -221,7 +221,7 @@ void rtl8723a_usb_intf_stop(struct rtw_adapter *padapter)
 		 * TODO:
 		 */
 		RT_TRACE(_module_hci_intfs_c_, _drv_err_,
-			 ("SurpriseRemoved == false\n"));
+			 "SurpriseRemoved == false\n");
 	}
 
 	/* cancel in irp */
@@ -231,13 +231,14 @@ void rtl8723a_usb_intf_stop(struct rtw_adapter *padapter)
 	rtl8723au_write_port_cancel(padapter);
 
 	/* todo:cancel other irps */
-	RT_TRACE(_module_hci_intfs_c_, _drv_err_, ("-usb_intf_stop\n"));
+	RT_TRACE(_module_hci_intfs_c_, _drv_err_, "-usb_intf_stop\n");
 }
 
 static void rtw_dev_unload(struct rtw_adapter *padapter)
 {
 	struct submit_ctx *pack_tx_ops = &padapter->xmitpriv.ack_tx_ops;
-	RT_TRACE(_module_hci_intfs_c_, _drv_err_, ("+rtw_dev_unload\n"));
+
+	RT_TRACE(_module_hci_intfs_c_, _drv_err_, "+rtw_dev_unload\n");
 
 	if (padapter->bup) {
 		DBG_8723A("===> rtw_dev_unload\n");
@@ -261,10 +262,10 @@ static void rtw_dev_unload(struct rtw_adapter *padapter)
 		padapter->bup = false;
 	} else {
 		RT_TRACE(_module_hci_intfs_c_, _drv_err_,
-			 ("r871x_dev_unload():padapter->bup == false\n"));
+			 "r871x_dev_unload():padapter->bup == false\n");
 	}
 	DBG_8723A("<=== rtw_dev_unload\n");
-	RT_TRACE(_module_hci_intfs_c_, _drv_err_, ("-rtw_dev_unload\n"));
+	RT_TRACE(_module_hci_intfs_c_, _drv_err_, "-rtw_dev_unload\n");
 }
 
 static int rtw_suspend(struct usb_interface *pusb_intf, pm_message_t message)
@@ -435,7 +436,7 @@ static struct rtw_adapter *rtw_usb_if1_init(struct dvobj_priv *dvobj,
 	/* step 5. */
 	if (rtw_init_drv_sw23a(padapter) == _FAIL) {
 		RT_TRACE(_module_hci_intfs_c_, _drv_err_,
-			 ("Initialize driver software resource Failed!\n"));
+			 "Initialize driver software resource Failed!\n");
 		goto free_hal_data;
 	}
 
@@ -533,13 +534,13 @@ static int rtw_drv_init(struct usb_interface *pusb_intf,
 	struct dvobj_priv *dvobj;
 	int status = _FAIL;
 
-	RT_TRACE(_module_hci_intfs_c_, _drv_err_, ("+rtw_drv_init\n"));
+	RT_TRACE(_module_hci_intfs_c_, _drv_err_, "+rtw_drv_init\n");
 
 	/* Initialize dvobj_priv */
 	dvobj = usb_dvobj_init(pusb_intf);
 	if (!dvobj) {
 		RT_TRACE(_module_hci_intfs_c_, _drv_err_,
-			 ("initialize device object priv Failed!\n"));
+			 "initialize device object priv Failed!\n");
 		goto exit;
 	}
 
@@ -554,7 +555,7 @@ static int rtw_drv_init(struct usb_interface *pusb_intf,
 	if (status != _SUCCESS)
 		goto free_if1;
 	RT_TRACE(_module_hci_intfs_c_, _drv_err_,
-		 ("-871x_drv - drv_init, success!\n"));
+		 "-871x_drv - drv_init, success!\n");
 
 	status = _SUCCESS;
 
@@ -586,7 +587,7 @@ static void rtw_disconnect(struct usb_interface *pusb_intf)
 
 	usb_set_intfdata(pusb_intf, NULL);
 
-	RT_TRACE(_module_hci_intfs_c_, _drv_err_, ("+dev_remove()\n"));
+	RT_TRACE(_module_hci_intfs_c_, _drv_err_, "+dev_remove()\n");
 
 	rtw_pm_set_ips23a(padapter, IPS_NONE);
 	rtw_pm_set_lps23a(padapter, PS_MODE_ACTIVE);
@@ -597,21 +598,19 @@ static void rtw_disconnect(struct usb_interface *pusb_intf)
 
 	usb_dvobj_deinit(pusb_intf);
 
-	RT_TRACE(_module_hci_intfs_c_, _drv_err_, ("-dev_remove()\n"));
+	RT_TRACE(_module_hci_intfs_c_, _drv_err_, "-dev_remove()\n");
 	DBG_8723A("-r871xu_dev_remove, done\n");
-
-	return;
 }
 
 static int __init rtw_drv_entry(void)
 {
-	RT_TRACE(_module_hci_intfs_c_, _drv_err_, ("+rtw_drv_entry\n"));
+	RT_TRACE(_module_hci_intfs_c_, _drv_err_, "+rtw_drv_entry\n");
 	return usb_register(usb_drv);
 }
 
 static void __exit rtw_drv_halt(void)
 {
-	RT_TRACE(_module_hci_intfs_c_, _drv_err_, ("+rtw_drv_halt\n"));
+	RT_TRACE(_module_hci_intfs_c_, _drv_err_, "+rtw_drv_halt\n");
 	DBG_8723A("+rtw_drv_halt\n");
 
 	usb_deregister(usb_drv);
diff --git a/drivers/staging/rtl8723au/os_dep/usb_ops_linux.c b/drivers/staging/rtl8723au/os_dep/usb_ops_linux.c
index 3e19b3b..0cdaef0 100644
--- a/drivers/staging/rtl8723au/os_dep/usb_ops_linux.c
+++ b/drivers/staging/rtl8723au/os_dep/usb_ops_linux.c
@@ -58,9 +58,8 @@ static void usb_write_port23a_complete(struct urb *purb)
 	if (padapter->bSurpriseRemoved || padapter->bDriverStopped ||
 	    padapter->bWritePortCancel) {
 		RT_TRACE(_module_hci_ops_os_c_, _drv_err_,
-			 ("usb_write_port23a_complete:bDriverStopped(%d) OR "
-			  "bSurpriseRemoved(%d)", padapter->bDriverStopped,
-			  padapter->bSurpriseRemoved));
+			 "usb_write_port23a_complete:bDriverStopped(%d) OR bSurpriseRemoved(%d)\n",
+			 padapter->bDriverStopped, padapter->bSurpriseRemoved);
 		DBG_8723A("%s(): TX Warning! bDriverStopped(%d) OR "
 			  "bSurpriseRemoved(%d) bWritePortCancel(%d) "
 			  "pxmitbuf->ext_tag(%x)\n", __func__,
@@ -72,14 +71,14 @@ static void usb_write_port23a_complete(struct urb *purb)
 
 	if (purb->status) {
 		RT_TRACE(_module_hci_ops_os_c_, _drv_err_,
-			 ("usb_write_port23a_complete : purb->status(%d) "
-			  "!= 0\n", purb->status));
+			 "usb_write_port23a_complete : purb->status(%d) != 0\n",
+			 purb->status);
 		DBG_8723A("###=> urb_write_port_complete status(%d)\n",
 			  purb->status);
 		if (purb->status == -EPIPE || purb->status == -EPROTO) {
 		} else if (purb->status == -EINPROGRESS) {
 			RT_TRACE(_module_hci_ops_os_c_, _drv_err_,
-				 ("usb_write_port23a_complete: EINPROGESS\n"));
+				 "usb_write_port23a_complete: EINPROGESS\n");
 			goto check_completion;
 		} else if (purb->status == -ENOENT) {
 			DBG_8723A("%s: -ENOENT\n", __func__);
@@ -89,18 +88,16 @@ static void usb_write_port23a_complete(struct urb *purb)
 			goto check_completion;
 		} else if (purb->status == -ESHUTDOWN) {
 			RT_TRACE(_module_hci_ops_os_c_, _drv_err_,
-				 ("usb_write_port23a_complete: ESHUTDOWN\n"));
+				 "usb_write_port23a_complete: ESHUTDOWN\n");
 			padapter->bDriverStopped = true;
 			RT_TRACE(_module_hci_ops_os_c_, _drv_err_,
-				 ("usb_write_port23a_complete:bDriverStopped "
-				  "= true\n"));
+				 "usb_write_port23a_complete:bDriverStopped = true\n");
 			goto check_completion;
 		} else {
 			padapter->bSurpriseRemoved = true;
 			DBG_8723A("bSurpriseRemoved = true\n");
 			RT_TRACE(_module_hci_ops_os_c_, _drv_err_,
-				 ("usb_write_port23a_complete:bSurpriseRemoved "
-				  "= true\n"));
+				 "usb_write_port23a_complete:bSurpriseRemoved = true\n");
 			goto check_completion;
 		}
 	}
@@ -132,12 +129,12 @@ int rtl8723au_write_port(struct rtw_adapter *padapter, u32 addr, u32 cnt,
 	int status;
 	int ret = _FAIL;
 
-	RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("+usb_write_port23a\n"));
+	RT_TRACE(_module_hci_ops_os_c_, _drv_err_, "+usb_write_port23a\n");
 
 	if (padapter->bDriverStopped || padapter->bSurpriseRemoved) {
 		RT_TRACE(_module_hci_ops_os_c_, _drv_err_,
-			 ("%s:(padapter->bDriverStopped || "
-			  "padapter->bSurpriseRemoved)!!!\n", __func__));
+			 "%s:(padapter->bDriverStopped || padapter->bSurpriseRemoved)!!!\n",
+			 __func__);
 		rtw23a_sctx_done_err(&pxmitbuf->sctx, RTW_SCTX_DONE_TX_DENY);
 		goto exit;
 	}
@@ -188,8 +185,8 @@ int rtl8723au_write_port(struct rtw_adapter *padapter, u32 addr, u32 cnt,
 				     RTW_SCTX_DONE_WRITE_PORT_ERR);
 		DBG_8723A("usb_write_port23a, status =%d\n", status);
 		RT_TRACE(_module_hci_ops_os_c_, _drv_err_,
-			 ("usb_write_port23a(): usb_submit_urb, status =%x\n",
-			 status));
+			 "usb_write_port23a(): usb_submit_urb, status =%x\n",
+			 status);
 
 		switch (status) {
 		case -ENODEV:
@@ -201,7 +198,7 @@ int rtl8723au_write_port(struct rtw_adapter *padapter, u32 addr, u32 cnt,
 		goto exit;
 	}
 	ret = _SUCCESS;
-	RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("-usb_write_port23a\n"));
+	RT_TRACE(_module_hci_ops_os_c_, _drv_err_, "-usb_write_port23a\n");
 
 exit:
 	if (ret != _SUCCESS)
diff --git a/drivers/staging/rtl8723au/os_dep/xmit_linux.c b/drivers/staging/rtl8723au/os_dep/xmit_linux.c
index 69f8884..9a14074 100644
--- a/drivers/staging/rtl8723au/os_dep/xmit_linux.c
+++ b/drivers/staging/rtl8723au/os_dep/xmit_linux.c
@@ -123,11 +123,11 @@ int rtw_xmit23a_entry23a(struct sk_buff *skb, struct net_device *pnetdev)
 	struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
 	int res = 0;
 
-	RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("+xmit_enry\n"));
+	RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, "+xmit_enry\n");
 
 	if (!rtw_if_up23a(padapter)) {
 		RT_TRACE(_module_xmit_osdep_c_, _drv_err_,
-			 ("rtw_xmit23a_entry23a: rtw_if_up23a fail\n"));
+			 "rtw_xmit23a_entry23a: rtw_if_up23a fail\n");
 		goto drop_packet;
 	}
 
@@ -139,16 +139,16 @@ int rtw_xmit23a_entry23a(struct sk_buff *skb, struct net_device *pnetdev)
 
 	pxmitpriv->tx_pkts++;
 	RT_TRACE(_module_xmit_osdep_c_, _drv_info_,
-		 ("rtw_xmit23a_entry23a: tx_pkts=%d\n",
-		 (u32)pxmitpriv->tx_pkts));
+		 "rtw_xmit23a_entry23a: tx_pkts=%d\n",
+		 (u32)pxmitpriv->tx_pkts);
 	goto exit;
 
 drop_packet:
 	pxmitpriv->tx_drop++;
 	dev_kfree_skb_any(skb);
 	RT_TRACE(_module_xmit_osdep_c_, _drv_notice_,
-		 ("rtw_xmit23a_entry23a: drop, tx_drop=%d\n",
-		 (u32)pxmitpriv->tx_drop));
+		 "rtw_xmit23a_entry23a: drop, tx_drop=%d\n",
+		 (u32)pxmitpriv->tx_drop);
 exit:
 	return 0;
 }
diff --git a/drivers/staging/rts5208/Makefile b/drivers/staging/rts5208/Makefile
index 17b4471..f7fd03a 100644
--- a/drivers/staging/rts5208/Makefile
+++ b/drivers/staging/rts5208/Makefile
@@ -3,4 +3,4 @@ obj-$(CONFIG_RTS5208) := rts5208.o
 ccflags-y := -Idrivers/scsi
 
 rts5208-y := rtsx.o rtsx_chip.o rtsx_transport.o rtsx_scsi.o \
-	rtsx_card.o general.o sd.o xd.o ms.o spi.o
+	rtsx_card.o general.o sd.o xd.o ms.o spi.o trace.o
diff --git a/drivers/staging/rts5208/ms.c b/drivers/staging/rts5208/ms.c
index a47a191..ee818b0 100644
--- a/drivers/staging/rts5208/ms.c
+++ b/drivers/staging/rts5208/ms.c
@@ -26,9 +26,6 @@
 #include <linux/vmalloc.h>
 
 #include "rtsx.h"
-#include "rtsx_transport.h"
-#include "rtsx_scsi.h"
-#include "rtsx_card.h"
 #include "ms.h"
 
 static inline void ms_set_err_code(struct rtsx_chip *chip, u8 err_code)
@@ -47,7 +44,8 @@ static inline int ms_check_err_code(struct rtsx_chip *chip, u8 err_code)
 
 static int ms_parse_err_code(struct rtsx_chip *chip)
 {
-	TRACE_RET(chip, STATUS_FAIL);
+	rtsx_trace(chip);
+	return STATUS_FAIL;
 }
 
 static int ms_transfer_tpc(struct rtsx_chip *chip, u8 trans_mode,
@@ -78,7 +76,8 @@ static int ms_transfer_tpc(struct rtsx_chip *chip, u8 trans_mode,
 	if (retval < 0) {
 		rtsx_clear_ms_error(chip);
 		ms_set_err_code(chip, MS_TO_ERROR);
-		TRACE_RET(chip, ms_parse_err_code(chip));
+		rtsx_trace(chip);
+		return ms_parse_err_code(chip);
 	}
 
 	ptr = rtsx_get_cmd_data(chip) + 1;
@@ -86,13 +85,15 @@ static int ms_transfer_tpc(struct rtsx_chip *chip, u8 trans_mode,
 	if (!(tpc & 0x08)) {		/* Read Packet */
 		if (*ptr & MS_CRC16_ERR) {
 			ms_set_err_code(chip, MS_CRC16_ERROR);
-			TRACE_RET(chip, ms_parse_err_code(chip));
+			rtsx_trace(chip);
+			return ms_parse_err_code(chip);
 		}
 	} else {			/* Write Packet */
 		if (CHK_MSPRO(ms_card) && !(*ptr & 0x80)) {
 			if (*ptr & (MS_INT_ERR | MS_INT_CMDNK)) {
 				ms_set_err_code(chip, MS_CMD_NK);
-				TRACE_RET(chip, ms_parse_err_code(chip));
+				rtsx_trace(chip);
+				return ms_parse_err_code(chip);
 			}
 		}
 	}
@@ -100,22 +101,25 @@ static int ms_transfer_tpc(struct rtsx_chip *chip, u8 trans_mode,
 	if (*ptr & MS_RDY_TIMEOUT) {
 		rtsx_clear_ms_error(chip);
 		ms_set_err_code(chip, MS_TO_ERROR);
-		TRACE_RET(chip, ms_parse_err_code(chip));
+		rtsx_trace(chip);
+		return ms_parse_err_code(chip);
 	}
 
 	return STATUS_SUCCESS;
 }
 
 static int ms_transfer_data(struct rtsx_chip *chip, u8 trans_mode,
-			u8 tpc, u16 sec_cnt, u8 cfg, int mode_2k,
+			u8 tpc, u16 sec_cnt, u8 cfg, bool mode_2k,
 			int use_sg, void *buf, int buf_len)
 {
 	int retval;
 	u8 val, err_code = 0;
 	enum dma_data_direction dir;
 
-	if (!buf || !buf_len)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (!buf || !buf_len) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	if (trans_mode == MS_TM_AUTO_READ) {
 		dir = DMA_FROM_DEVICE;
@@ -124,7 +128,8 @@ static int ms_transfer_data(struct rtsx_chip *chip, u8 trans_mode,
 		dir = DMA_TO_DEVICE;
 		err_code = MS_FLASH_WRITE_ERROR;
 	} else {
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	rtsx_init_cmd(chip);
@@ -160,12 +165,19 @@ static int ms_transfer_data(struct rtsx_chip *chip, u8 trans_mode,
 		else
 			retval = STATUS_FAIL;
 
-		TRACE_RET(chip, retval);
+		rtsx_trace(chip);
+		return retval;
 	}
 
-	RTSX_READ_REG(chip, MS_TRANS_CFG, &val);
-	if (val & (MS_INT_CMDNK | MS_INT_ERR | MS_CRC16_ERR | MS_RDY_TIMEOUT))
-		TRACE_RET(chip, STATUS_FAIL);
+	retval = rtsx_read_register(chip, MS_TRANS_CFG, &val);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
+	if (val & (MS_INT_CMDNK | MS_INT_ERR | MS_CRC16_ERR | MS_RDY_TIMEOUT)) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	return STATUS_SUCCESS;
 }
@@ -176,8 +188,10 @@ static int ms_write_bytes(struct rtsx_chip *chip,
 	struct ms_info *ms_card = &(chip->ms_card);
 	int retval, i;
 
-	if (!data || (data_len < cnt))
-		TRACE_RET(chip, STATUS_ERROR);
+	if (!data || (data_len < cnt)) {
+		rtsx_trace(chip);
+		return STATUS_ERROR;
+	}
 
 	rtsx_init_cmd(chip);
 
@@ -211,25 +225,28 @@ static int ms_write_bytes(struct rtsx_chip *chip,
 		if (!(tpc & 0x08)) {
 			if (val & MS_CRC16_ERR) {
 				ms_set_err_code(chip, MS_CRC16_ERROR);
-				TRACE_RET(chip, ms_parse_err_code(chip));
+				rtsx_trace(chip);
+				return ms_parse_err_code(chip);
 			}
 		} else {
 			if (CHK_MSPRO(ms_card) && !(val & 0x80)) {
 				if (val & (MS_INT_ERR | MS_INT_CMDNK)) {
 					ms_set_err_code(chip, MS_CMD_NK);
-					TRACE_RET(chip,
-						ms_parse_err_code(chip));
+					rtsx_trace(chip);
+					return ms_parse_err_code(chip);
 				}
 			}
 		}
 
 		if (val & MS_RDY_TIMEOUT) {
 			ms_set_err_code(chip, MS_TO_ERROR);
-			TRACE_RET(chip, ms_parse_err_code(chip));
+			rtsx_trace(chip);
+			return ms_parse_err_code(chip);
 		}
 
 		ms_set_err_code(chip, MS_TO_ERROR);
-		TRACE_RET(chip, ms_parse_err_code(chip));
+		rtsx_trace(chip);
+		return ms_parse_err_code(chip);
 	}
 
 	return STATUS_SUCCESS;
@@ -242,8 +259,10 @@ static int ms_read_bytes(struct rtsx_chip *chip,
 	int retval, i;
 	u8 *ptr;
 
-	if (!data)
-		TRACE_RET(chip, STATUS_ERROR);
+	if (!data) {
+		rtsx_trace(chip);
+		return STATUS_ERROR;
+	}
 
 	rtsx_init_cmd(chip);
 
@@ -277,25 +296,28 @@ static int ms_read_bytes(struct rtsx_chip *chip,
 		if (!(tpc & 0x08)) {
 			if (val & MS_CRC16_ERR) {
 				ms_set_err_code(chip, MS_CRC16_ERROR);
-				TRACE_RET(chip, ms_parse_err_code(chip));
+				rtsx_trace(chip);
+				return ms_parse_err_code(chip);
 			}
 		} else {
 			if (CHK_MSPRO(ms_card) && !(val & 0x80)) {
 				if (val & (MS_INT_ERR | MS_INT_CMDNK)) {
 					ms_set_err_code(chip, MS_CMD_NK);
-					TRACE_RET(chip,
-						ms_parse_err_code(chip));
+					rtsx_trace(chip);
+					return ms_parse_err_code(chip);
 				}
 			}
 		}
 
 		if (val & MS_RDY_TIMEOUT) {
 			ms_set_err_code(chip, MS_TO_ERROR);
-			TRACE_RET(chip, ms_parse_err_code(chip));
+			rtsx_trace(chip);
+			return ms_parse_err_code(chip);
 		}
 
 		ms_set_err_code(chip, MS_TO_ERROR);
-		TRACE_RET(chip, ms_parse_err_code(chip));
+		rtsx_trace(chip);
+		return ms_parse_err_code(chip);
 	}
 
 	ptr = rtsx_get_cmd_data(chip) + 1;
@@ -331,7 +353,8 @@ static int ms_set_rw_reg_addr(struct rtsx_chip *chip,
 		rtsx_clear_ms_error(chip);
 	}
 
-	TRACE_RET(chip, STATUS_FAIL);
+	rtsx_trace(chip);
+	return STATUS_FAIL;
 }
 
 static int ms_send_cmd(struct rtsx_chip *chip, u8 cmd, u8 cfg)
@@ -369,12 +392,16 @@ static int ms_set_init_para(struct rtsx_chip *chip)
 	}
 
 	retval = switch_clock(chip, ms_card->ms_clock);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	retval = select_card(chip, MS_CARD);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	return STATUS_SUCCESS;
 }
@@ -385,37 +412,87 @@ static int ms_switch_clock(struct rtsx_chip *chip)
 	int retval;
 
 	retval = select_card(chip, MS_CARD);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	retval = switch_clock(chip, ms_card->ms_clock);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	return STATUS_SUCCESS;
 }
 
 static int ms_pull_ctl_disable(struct rtsx_chip *chip)
 {
+	int retval;
+
 	if (CHECK_PID(chip, 0x5208)) {
-		RTSX_WRITE_REG(chip, CARD_PULL_CTL1, 0xFF,
-			MS_D1_PD | MS_D2_PD | MS_CLK_PD | MS_D6_PD);
-		RTSX_WRITE_REG(chip, CARD_PULL_CTL2, 0xFF,
-			MS_D3_PD | MS_D0_PD | MS_BS_PD | XD_D4_PD);
-		RTSX_WRITE_REG(chip, CARD_PULL_CTL3, 0xFF,
-			MS_D7_PD | XD_CE_PD | XD_CLE_PD | XD_CD_PU);
-		RTSX_WRITE_REG(chip, CARD_PULL_CTL4, 0xFF,
-			XD_RDY_PD | SD_D3_PD | SD_D2_PD | XD_ALE_PD);
-		RTSX_WRITE_REG(chip, CARD_PULL_CTL5, 0xFF,
-			MS_INS_PU | SD_WP_PD | SD_CD_PU | SD_CMD_PD);
-		RTSX_WRITE_REG(chip, CARD_PULL_CTL6, 0xFF,
-			MS_D5_PD | MS_D4_PD);
+		retval = rtsx_write_register(chip, CARD_PULL_CTL1, 0xFF,
+					     MS_D1_PD | MS_D2_PD | MS_CLK_PD | MS_D6_PD);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
+		retval = rtsx_write_register(chip, CARD_PULL_CTL2, 0xFF,
+					     MS_D3_PD | MS_D0_PD | MS_BS_PD | XD_D4_PD);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
+		retval = rtsx_write_register(chip, CARD_PULL_CTL3, 0xFF,
+					     MS_D7_PD | XD_CE_PD | XD_CLE_PD | XD_CD_PU);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
+		retval = rtsx_write_register(chip, CARD_PULL_CTL4, 0xFF,
+					     XD_RDY_PD | SD_D3_PD | SD_D2_PD | XD_ALE_PD);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
+		retval = rtsx_write_register(chip, CARD_PULL_CTL5, 0xFF,
+					     MS_INS_PU | SD_WP_PD | SD_CD_PU | SD_CMD_PD);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
+		retval = rtsx_write_register(chip, CARD_PULL_CTL6, 0xFF,
+					     MS_D5_PD | MS_D4_PD);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
 	} else if (CHECK_PID(chip, 0x5288)) {
 		if (CHECK_BARO_PKG(chip, QFN)) {
-			RTSX_WRITE_REG(chip, CARD_PULL_CTL1, 0xFF, 0x55);
-			RTSX_WRITE_REG(chip, CARD_PULL_CTL2, 0xFF, 0x55);
-			RTSX_WRITE_REG(chip, CARD_PULL_CTL3, 0xFF, 0x4B);
-			RTSX_WRITE_REG(chip, CARD_PULL_CTL4, 0xFF, 0x69);
+			retval = rtsx_write_register(chip, CARD_PULL_CTL1,
+						     0xFF, 0x55);
+			if (retval) {
+				rtsx_trace(chip);
+				return retval;
+			}
+			retval = rtsx_write_register(chip, CARD_PULL_CTL2,
+						     0xFF, 0x55);
+			if (retval) {
+				rtsx_trace(chip);
+				return retval;
+			}
+			retval = rtsx_write_register(chip, CARD_PULL_CTL3,
+						     0xFF, 0x4B);
+			if (retval) {
+				rtsx_trace(chip);
+				return retval;
+			}
+			retval = rtsx_write_register(chip, CARD_PULL_CTL4,
+						     0xFF, 0x69);
+			if (retval) {
+				rtsx_trace(chip);
+				return retval;
+			}
 		}
 	}
 
@@ -455,8 +532,10 @@ static int ms_pull_ctl_enable(struct rtsx_chip *chip)
 	}
 
 	retval = rtsx_send_cmd(chip, MS_CARD, 100);
-	if (retval < 0)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval < 0) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	return STATUS_SUCCESS;
 }
@@ -475,29 +554,41 @@ static int ms_prepare_reset(struct rtsx_chip *chip)
 	ms_card->pro_under_formatting = 0;
 
 	retval = ms_power_off_card3v3(chip);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	if (!chip->ft2_fast_mode)
 		wait_timeout(250);
 
 	retval = enable_card_clock(chip, MS_CARD);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	if (chip->asic_code) {
 		retval = ms_pull_ctl_enable(chip);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 	} else {
-		RTSX_WRITE_REG(chip, FPGA_PULL_CTL,
-			FPGA_MS_PULL_CTL_BIT | 0x20, 0);
+		retval = rtsx_write_register(chip, FPGA_PULL_CTL,
+					     FPGA_MS_PULL_CTL_BIT | 0x20, 0);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
 	}
 
 	if (!chip->ft2_fast_mode) {
 		retval = card_power_on(chip, MS_CARD);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 
 		wait_timeout(150);
 
@@ -510,30 +601,52 @@ static int ms_prepare_reset(struct rtsx_chip *chip)
 		if (chip->ocp_stat & oc_mask) {
 			dev_dbg(rtsx_dev(chip), "Over current, OCPSTAT is 0x%x\n",
 				chip->ocp_stat);
-			TRACE_RET(chip, STATUS_FAIL);
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		}
 #endif
 	}
 
-	RTSX_WRITE_REG(chip, CARD_OE, MS_OUTPUT_EN, MS_OUTPUT_EN);
+	retval = rtsx_write_register(chip, CARD_OE, MS_OUTPUT_EN,
+				     MS_OUTPUT_EN);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 
 	if (chip->asic_code) {
-		RTSX_WRITE_REG(chip, MS_CFG, 0xFF,
-			SAMPLE_TIME_RISING | PUSH_TIME_DEFAULT |
-			NO_EXTEND_TOGGLE | MS_BUS_WIDTH_1);
+		retval = rtsx_write_register(chip, MS_CFG, 0xFF,
+					     SAMPLE_TIME_RISING | PUSH_TIME_DEFAULT | NO_EXTEND_TOGGLE | MS_BUS_WIDTH_1);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
 	} else {
-		RTSX_WRITE_REG(chip, MS_CFG, 0xFF,
-			SAMPLE_TIME_FALLING | PUSH_TIME_DEFAULT |
-			NO_EXTEND_TOGGLE | MS_BUS_WIDTH_1);
+		retval = rtsx_write_register(chip, MS_CFG, 0xFF,
+					     SAMPLE_TIME_FALLING | PUSH_TIME_DEFAULT | NO_EXTEND_TOGGLE | MS_BUS_WIDTH_1);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
+	}
+	retval = rtsx_write_register(chip, MS_TRANS_CFG, 0xFF,
+				     NO_WAIT_INT | NO_AUTO_READ_INT_REG);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
+	retval = rtsx_write_register(chip, CARD_STOP, MS_STOP | MS_CLR_ERR,
+				     MS_STOP | MS_CLR_ERR);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
 	}
-	RTSX_WRITE_REG(chip, MS_TRANS_CFG,
-		0xFF, NO_WAIT_INT | NO_AUTO_READ_INT_REG);
-	RTSX_WRITE_REG(chip, CARD_STOP,
-		MS_STOP | MS_CLR_ERR, MS_STOP | MS_CLR_ERR);
 
 	retval = ms_set_init_para(chip);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	return STATUS_SUCCESS;
 }
@@ -545,8 +658,10 @@ static int ms_identify_media_type(struct rtsx_chip *chip, int switch_8bit_bus)
 	u8 val;
 
 	retval = ms_set_rw_reg_addr(chip, Pro_StatusReg, 6, SystemParm, 1);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	for (i = 0; i < MS_MAX_RETRY_COUNT; i++) {
 		retval = ms_transfer_tpc(chip, MS_TM_READ_BYTES, READ_REG,
@@ -554,29 +669,49 @@ static int ms_identify_media_type(struct rtsx_chip *chip, int switch_8bit_bus)
 		if (retval == STATUS_SUCCESS)
 			break;
 	}
-	if (i == MS_MAX_RETRY_COUNT)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (i == MS_MAX_RETRY_COUNT) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
-	RTSX_READ_REG(chip, PPBUF_BASE2 + 2, &val);
+	retval = rtsx_read_register(chip, PPBUF_BASE2 + 2, &val);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 	dev_dbg(rtsx_dev(chip), "Type register: 0x%x\n", val);
 	if (val != 0x01) {
 		if (val != 0x02)
 			ms_card->check_ms_flow = 1;
 
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
-	RTSX_READ_REG(chip, PPBUF_BASE2 + 4, &val);
+	retval = rtsx_read_register(chip, PPBUF_BASE2 + 4, &val);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 	dev_dbg(rtsx_dev(chip), "Category register: 0x%x\n", val);
 	if (val != 0) {
 		ms_card->check_ms_flow = 1;
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
-	RTSX_READ_REG(chip, PPBUF_BASE2 + 5, &val);
+	retval = rtsx_read_register(chip, PPBUF_BASE2 + 5, &val);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 	dev_dbg(rtsx_dev(chip), "Class register: 0x%x\n", val);
 	if (val == 0) {
-		RTSX_READ_REG(chip, PPBUF_BASE2, &val);
+		retval = rtsx_read_register(chip, PPBUF_BASE2, &val);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
 		if (val & WRT_PRTCT)
 			chip->card_wp |= MS_CARD;
 		else
@@ -586,12 +721,17 @@ static int ms_identify_media_type(struct rtsx_chip *chip, int switch_8bit_bus)
 		chip->card_wp |= MS_CARD;
 	} else {
 		ms_card->check_ms_flow = 1;
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	ms_card->ms_type |= TYPE_MSPRO;
 
-	RTSX_READ_REG(chip, PPBUF_BASE2 + 3, &val);
+	retval = rtsx_read_register(chip, PPBUF_BASE2 + 3, &val);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 	dev_dbg(rtsx_dev(chip), "IF Mode register: 0x%x\n", val);
 	if (val == 0) {
 		ms_card->ms_type &= 0x0F;
@@ -602,7 +742,8 @@ static int ms_identify_media_type(struct rtsx_chip *chip, int switch_8bit_bus)
 			ms_card->ms_type &= 0x0F;
 
 	} else {
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	return STATUS_SUCCESS;
@@ -618,7 +759,8 @@ static int ms_confirm_cpu_startup(struct rtsx_chip *chip)
 	do {
 		if (detect_card_cd(chip, MS_CARD) != STATUS_SUCCESS) {
 			ms_set_err_code(chip, MS_NO_CARD);
-			TRACE_RET(chip, STATUS_FAIL);
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		}
 
 		for (i = 0; i < MS_MAX_RETRY_COUNT; i++) {
@@ -627,11 +769,15 @@ static int ms_confirm_cpu_startup(struct rtsx_chip *chip)
 			if (retval == STATUS_SUCCESS)
 				break;
 		}
-		if (i == MS_MAX_RETRY_COUNT)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (i == MS_MAX_RETRY_COUNT) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 
-		if (k > 100)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (k > 100) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 
 		k++;
 		wait_timeout(100);
@@ -642,14 +788,18 @@ static int ms_confirm_cpu_startup(struct rtsx_chip *chip)
 		if (retval == STATUS_SUCCESS)
 			break;
 	}
-	if (i == MS_MAX_RETRY_COUNT)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (i == MS_MAX_RETRY_COUNT) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	if (val & INT_REG_ERR) {
 		if (val & INT_REG_CMDNK)
 			chip->card_wp |= (MS_CARD);
-		else
-			TRACE_RET(chip, STATUS_FAIL);
+		else {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 	}
 	/* --  end confirm CPU startup */
 
@@ -669,8 +819,10 @@ static int ms_switch_parallel_bus(struct rtsx_chip *chip)
 		if (retval == STATUS_SUCCESS)
 			break;
 	}
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	return STATUS_SUCCESS;
 }
@@ -689,21 +841,31 @@ static int ms_switch_8bit_bus(struct rtsx_chip *chip)
 		if (retval == STATUS_SUCCESS)
 			break;
 	}
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
-	RTSX_WRITE_REG(chip, MS_CFG, 0x98,
-		MS_BUS_WIDTH_8 | SAMPLE_TIME_FALLING);
+	retval = rtsx_write_register(chip, MS_CFG, 0x98,
+				     MS_BUS_WIDTH_8 | SAMPLE_TIME_FALLING);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 	ms_card->ms_type |= MS_8BIT;
 	retval = ms_set_init_para(chip);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	for (i = 0; i < MS_MAX_RETRY_COUNT; i++) {
 		retval = ms_transfer_tpc(chip, MS_TM_READ_BYTES, GET_INT,
 					1, NO_WAIT_INT);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 	}
 
 	return STATUS_SUCCESS;
@@ -716,22 +878,29 @@ static int ms_pro_reset_flow(struct rtsx_chip *chip, int switch_8bit_bus)
 
 	for (i = 0; i < 3; i++) {
 		retval = ms_prepare_reset(chip);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 
 		retval = ms_identify_media_type(chip, switch_8bit_bus);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 
 		retval = ms_confirm_cpu_startup(chip);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 
 		retval = ms_switch_parallel_bus(chip);
 		if (retval != STATUS_SUCCESS) {
 			if (detect_card_cd(chip, MS_CARD) != STATUS_SUCCESS) {
 				ms_set_err_code(chip, MS_NO_CARD);
-				TRACE_RET(chip, STATUS_FAIL);
+				rtsx_trace(chip);
+				return STATUS_FAIL;
 			}
 			continue;
 		} else {
@@ -739,23 +908,37 @@ static int ms_pro_reset_flow(struct rtsx_chip *chip, int switch_8bit_bus)
 		}
 	}
 
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	/* Switch MS-PRO into Parallel mode */
-	RTSX_WRITE_REG(chip, MS_CFG, 0x18, MS_BUS_WIDTH_4);
-	RTSX_WRITE_REG(chip, MS_CFG, PUSH_TIME_ODD, PUSH_TIME_ODD);
+	retval = rtsx_write_register(chip, MS_CFG, 0x18, MS_BUS_WIDTH_4);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
+	retval = rtsx_write_register(chip, MS_CFG, PUSH_TIME_ODD,
+				     PUSH_TIME_ODD);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 
 	retval = ms_set_init_para(chip);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	/* If MSPro HG Card, We shall try to switch to 8-bit bus */
 	if (CHK_MSHG(ms_card) && chip->support_ms_8bit && switch_8bit_bus) {
 		retval = ms_switch_8bit_bus(chip);
 		if (retval != STATUS_SUCCESS) {
 			ms_card->switch_8bit_fail = 1;
-			TRACE_RET(chip, STATUS_FAIL);
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		}
 	}
 
@@ -771,8 +954,10 @@ static int msxc_change_power(struct rtsx_chip *chip, u8 mode)
 	ms_cleanup_work(chip);
 
 	retval = ms_set_rw_reg_addr(chip, 0, 0, Pro_DataCount1, 6);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	buf[0] = 0;
 	buf[1] = mode;
@@ -782,16 +967,26 @@ static int msxc_change_power(struct rtsx_chip *chip, u8 mode)
 	buf[5] = 0;
 
 	retval = ms_write_bytes(chip, PRO_WRITE_REG, 6, NO_WAIT_INT, buf, 6);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	retval = ms_send_cmd(chip, XC_CHG_POWER, WAIT_INT);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
-	RTSX_READ_REG(chip, MS_TRANS_CFG, buf);
-	if (buf[0] & (MS_INT_CMDNK | MS_INT_ERR))
-		TRACE_RET(chip, STATUS_FAIL);
+	retval = rtsx_read_register(chip, MS_TRANS_CFG, buf);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
+	if (buf[0] & (MS_INT_CMDNK | MS_INT_ERR)) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	return STATUS_SUCCESS;
 }
@@ -813,8 +1008,10 @@ static int ms_read_attribute_info(struct rtsx_chip *chip)
 #endif
 
 	retval = ms_set_rw_reg_addr(chip, Pro_IntReg, 2, Pro_SystemParm, 7);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	if (CHK_MS8BIT(ms_card))
 		data[0] = PARALLEL_8BIT_IF;
@@ -836,12 +1033,16 @@ static int ms_read_attribute_info(struct rtsx_chip *chip)
 		if (retval == STATUS_SUCCESS)
 			break;
 	}
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	buf = kmalloc(64 * 512, GFP_KERNEL);
-	if (buf == NULL)
-		TRACE_RET(chip, STATUS_ERROR);
+	if (buf == NULL) {
+		rtsx_trace(chip);
+		return STATUS_ERROR;
+	}
 
 	for (i = 0; i < MS_MAX_RETRY_COUNT; i++) {
 		retval = ms_send_cmd(chip, PRO_READ_ATRB, WAIT_INT);
@@ -851,11 +1052,13 @@ static int ms_read_attribute_info(struct rtsx_chip *chip)
 		retval = rtsx_read_register(chip, MS_TRANS_CFG, &val);
 		if (retval != STATUS_SUCCESS) {
 			kfree(buf);
-			TRACE_RET(chip, STATUS_FAIL);
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		}
 		if (!(val & MS_INT_BREQ)) {
 			kfree(buf);
-			TRACE_RET(chip, STATUS_FAIL);
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		}
 		retval = ms_transfer_data(chip, MS_TM_AUTO_READ,
 					PRO_READ_LONG_DATA, 0x40, WAIT_INT,
@@ -867,7 +1070,8 @@ static int ms_read_attribute_info(struct rtsx_chip *chip)
 	}
 	if (retval != STATUS_SUCCESS) {
 		kfree(buf);
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	i = 0;
@@ -875,7 +1079,8 @@ static int ms_read_attribute_info(struct rtsx_chip *chip)
 		retval = rtsx_read_register(chip, MS_TRANS_CFG, &val);
 		if (retval != STATUS_SUCCESS) {
 			kfree(buf);
-			TRACE_RET(chip, STATUS_FAIL);
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		}
 
 		if ((val & MS_INT_CED) || !(val & MS_INT_BREQ))
@@ -885,7 +1090,8 @@ static int ms_read_attribute_info(struct rtsx_chip *chip)
 					PRO_READ_LONG_DATA, 0, WAIT_INT);
 		if (retval != STATUS_SUCCESS) {
 			kfree(buf);
-			TRACE_RET(chip, STATUS_FAIL);
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		}
 
 		i++;
@@ -893,18 +1099,21 @@ static int ms_read_attribute_info(struct rtsx_chip *chip)
 
 	if (retval != STATUS_SUCCESS) {
 		kfree(buf);
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	if ((buf[0] != 0xa5) && (buf[1] != 0xc3)) {
 		/* Signature code is wrong */
 		kfree(buf);
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	if ((buf[4] < 1) || (buf[4] > 12)) {
 		kfree(buf);
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	for (i = 0; i < buf[4]; i++) {
@@ -929,15 +1138,18 @@ static int ms_read_attribute_info(struct rtsx_chip *chip)
 				sys_info_addr, sys_info_size);
 			if (sys_info_size != 96)  {
 				kfree(buf);
-				TRACE_RET(chip, STATUS_FAIL);
+				rtsx_trace(chip);
+				return STATUS_FAIL;
 			}
 			if (sys_info_addr < 0x1A0) {
 				kfree(buf);
-				TRACE_RET(chip, STATUS_FAIL);
+				rtsx_trace(chip);
+				return STATUS_FAIL;
 			}
 			if ((sys_info_size + sys_info_addr) > 0x8000) {
 				kfree(buf);
-				TRACE_RET(chip, STATUS_FAIL);
+				rtsx_trace(chip);
+				return STATUS_FAIL;
 			}
 
 #ifdef SUPPORT_MSXC
@@ -964,15 +1176,18 @@ static int ms_read_attribute_info(struct rtsx_chip *chip)
 				model_name_addr, model_name_size);
 			if (model_name_size != 48)  {
 				kfree(buf);
-				TRACE_RET(chip, STATUS_FAIL);
+				rtsx_trace(chip);
+				return STATUS_FAIL;
 			}
 			if (model_name_addr < 0x1A0) {
 				kfree(buf);
-				TRACE_RET(chip, STATUS_FAIL);
+				rtsx_trace(chip);
+				return STATUS_FAIL;
 			}
 			if ((model_name_size + model_name_addr) > 0x8000) {
 				kfree(buf);
-				TRACE_RET(chip, STATUS_FAIL);
+				rtsx_trace(chip);
+				return STATUS_FAIL;
 			}
 
 			found_model_name = 1;
@@ -985,7 +1200,8 @@ static int ms_read_attribute_info(struct rtsx_chip *chip)
 
 	if (i == buf[4]) {
 		kfree(buf);
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	class_code =  buf[sys_info_addr + 0];
@@ -1030,15 +1246,21 @@ static int ms_read_attribute_info(struct rtsx_chip *chip)
 
 #ifdef SUPPORT_MSXC
 	if (CHK_MSXC(ms_card)) {
-		if (class_code != 0x03)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (class_code != 0x03) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 	} else {
-		if (class_code != 0x02)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (class_code != 0x02) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 	}
 #else
-	if (class_code != 0x02)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (class_code != 0x02) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 #endif
 
 	if (device_type != 0x00) {
@@ -1046,12 +1268,15 @@ static int ms_read_attribute_info(struct rtsx_chip *chip)
 				(device_type == 0x03)) {
 			chip->card_wp |= MS_CARD;
 		} else {
-			TRACE_RET(chip, STATUS_FAIL);
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		}
 	}
 
-	if (sub_class & 0xC0)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (sub_class & 0xC0) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	dev_dbg(rtsx_dev(chip), "class_code: 0x%x, device_type: 0x%x, sub_class: 0x%x\n",
 		class_code, device_type, sub_class);
@@ -1099,16 +1324,21 @@ Retry:
 	if (retval != STATUS_SUCCESS) {
 		if (ms_card->switch_8bit_fail) {
 			retval = ms_pro_reset_flow(chip, 0);
-			if (retval != STATUS_SUCCESS)
-				TRACE_RET(chip, STATUS_FAIL);
+			if (retval != STATUS_SUCCESS) {
+				rtsx_trace(chip);
+				return STATUS_FAIL;
+			}
 		} else {
-			TRACE_RET(chip, STATUS_FAIL);
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		}
 	}
 
 	retval = ms_read_attribute_info(chip);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 #ifdef XC_POWERCLASS
 	if (CHK_HG8BIT(ms_card))
@@ -1148,8 +1378,10 @@ Retry:
 
 #ifdef SUPPORT_MAGIC_GATE
 	retval = mg_set_tpc_para_sub(chip, 0, 0);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 #endif
 
 	if (CHK_HG8BIT(ms_card))
@@ -1166,16 +1398,21 @@ static int ms_read_status_reg(struct rtsx_chip *chip)
 	u8 val[2];
 
 	retval = ms_set_rw_reg_addr(chip, StatusReg0, 2, 0, 0);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	retval = ms_read_bytes(chip, READ_REG, 2, NO_WAIT_INT, val, 2);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	if (val[1] & (STS_UCDT | STS_UCEX | STS_UCFG)) {
 		ms_set_err_code(chip, MS_FLASH_READ_ERROR);
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	return STATUS_SUCCESS;
@@ -1191,8 +1428,10 @@ static int ms_read_extra_data(struct rtsx_chip *chip,
 
 	retval = ms_set_rw_reg_addr(chip, OverwriteFlag, MS_EXTRA_SIZE,
 				SystemParm, 6);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	if (CHK_MS4BIT(ms_card)) {
 		/* Parallel interface */
@@ -1213,8 +1452,10 @@ static int ms_read_extra_data(struct rtsx_chip *chip,
 		if (retval == STATUS_SUCCESS)
 			break;
 	}
-	if (i == MS_MAX_RETRY_COUNT)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (i == MS_MAX_RETRY_COUNT) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	ms_set_err_code(chip, MS_NO_ERROR);
 
@@ -1223,35 +1464,46 @@ static int ms_read_extra_data(struct rtsx_chip *chip,
 		if (retval == STATUS_SUCCESS)
 			break;
 	}
-	if (i == MS_MAX_RETRY_COUNT)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (i == MS_MAX_RETRY_COUNT) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	ms_set_err_code(chip, MS_NO_ERROR);
 	retval = ms_read_bytes(chip, GET_INT, 1, NO_WAIT_INT, &val, 1);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	if (val & INT_REG_CMDNK) {
 		ms_set_err_code(chip, MS_CMD_NK);
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 	if (val & INT_REG_CED) {
 		if (val & INT_REG_ERR) {
 			retval = ms_read_status_reg(chip);
-			if (retval != STATUS_SUCCESS)
-				TRACE_RET(chip, STATUS_FAIL);
+			if (retval != STATUS_SUCCESS) {
+				rtsx_trace(chip);
+				return STATUS_FAIL;
+			}
 
 			retval = ms_set_rw_reg_addr(chip, OverwriteFlag,
 						MS_EXTRA_SIZE, SystemParm, 6);
-			if (retval != STATUS_SUCCESS)
-				TRACE_RET(chip, STATUS_FAIL);
+			if (retval != STATUS_SUCCESS) {
+				rtsx_trace(chip);
+				return STATUS_FAIL;
+			}
 		}
 	}
 
 	retval = ms_read_bytes(chip, READ_REG, MS_EXTRA_SIZE, NO_WAIT_INT,
 			data, MS_EXTRA_SIZE);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	if (buf && buf_len) {
 		if (buf_len > MS_EXTRA_SIZE)
@@ -1269,13 +1521,17 @@ static int ms_write_extra_data(struct rtsx_chip *chip,
 	int retval, i;
 	u8 val, data[16];
 
-	if (!buf || (buf_len < MS_EXTRA_SIZE))
-		TRACE_RET(chip, STATUS_FAIL);
+	if (!buf || (buf_len < MS_EXTRA_SIZE)) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	retval = ms_set_rw_reg_addr(chip, OverwriteFlag, MS_EXTRA_SIZE,
 				SystemParm, 6 + MS_EXTRA_SIZE);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	if (CHK_MS4BIT(ms_card))
 		data[0] = 0x88;
@@ -1293,26 +1549,34 @@ static int ms_write_extra_data(struct rtsx_chip *chip,
 
 	retval = ms_write_bytes(chip, WRITE_REG, (6 + MS_EXTRA_SIZE),
 				NO_WAIT_INT, data, 16);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	retval = ms_send_cmd(chip, BLOCK_WRITE, WAIT_INT);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	ms_set_err_code(chip, MS_NO_ERROR);
 	retval = ms_read_bytes(chip, GET_INT, 1, NO_WAIT_INT, &val, 1);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	if (val & INT_REG_CMDNK) {
 		ms_set_err_code(chip, MS_CMD_NK);
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 	if (val & INT_REG_CED) {
 		if (val & INT_REG_ERR) {
 			ms_set_err_code(chip, MS_FLASH_WRITE_ERROR);
-			TRACE_RET(chip, STATUS_FAIL);
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		}
 	}
 
@@ -1328,8 +1592,10 @@ static int ms_read_page(struct rtsx_chip *chip, u16 block_addr, u8 page_num)
 
 	retval = ms_set_rw_reg_addr(chip, OverwriteFlag, MS_EXTRA_SIZE,
 				SystemParm, 6);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	if (CHK_MS4BIT(ms_card))
 		data[0] = 0x88;
@@ -1343,28 +1609,36 @@ static int ms_read_page(struct rtsx_chip *chip, u16 block_addr, u8 page_num)
 	data[5] = page_num;
 
 	retval = ms_write_bytes(chip, WRITE_REG, 6, NO_WAIT_INT, data, 6);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	retval = ms_send_cmd(chip, BLOCK_READ, WAIT_INT);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	ms_set_err_code(chip, MS_NO_ERROR);
 	retval = ms_read_bytes(chip, GET_INT, 1, NO_WAIT_INT, &val, 1);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	if (val & INT_REG_CMDNK) {
 		ms_set_err_code(chip, MS_CMD_NK);
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	if (val & INT_REG_CED) {
 		if (val & INT_REG_ERR) {
 			if (!(val & INT_REG_BREQ)) {
 				ms_set_err_code(chip,  MS_FLASH_READ_ERROR);
-				TRACE_RET(chip, STATUS_FAIL);
+				rtsx_trace(chip);
+				return STATUS_FAIL;
 			}
 			retval = ms_read_status_reg(chip);
 			if (retval != STATUS_SUCCESS)
@@ -1373,18 +1647,23 @@ static int ms_read_page(struct rtsx_chip *chip, u16 block_addr, u8 page_num)
 		} else {
 			if (!(val & INT_REG_BREQ)) {
 				ms_set_err_code(chip, MS_BREQ_ERROR);
-				TRACE_RET(chip, STATUS_FAIL);
+				rtsx_trace(chip);
+				return STATUS_FAIL;
 			}
 		}
 	}
 
 	retval = ms_transfer_tpc(chip, MS_TM_NORMAL_READ, READ_PAGE_DATA,
 				0, NO_WAIT_INT);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
-	if (ms_check_err_code(chip, MS_FLASH_WRITE_ERROR))
-		TRACE_RET(chip, STATUS_FAIL);
+	if (ms_check_err_code(chip, MS_FLASH_WRITE_ERROR)) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	return STATUS_SUCCESS;
 }
@@ -1397,13 +1676,17 @@ static int ms_set_bad_block(struct rtsx_chip *chip, u16 phy_blk)
 	u8 val, data[8], extra[MS_EXTRA_SIZE];
 
 	retval = ms_read_extra_data(chip, phy_blk, 0, extra, MS_EXTRA_SIZE);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	retval = ms_set_rw_reg_addr(chip, OverwriteFlag, MS_EXTRA_SIZE,
 				SystemParm, 7);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	ms_set_err_code(chip, MS_NO_ERROR);
 
@@ -1421,27 +1704,35 @@ static int ms_set_bad_block(struct rtsx_chip *chip, u16 phy_blk)
 	data[7] = 0xFF;
 
 	retval = ms_write_bytes(chip, WRITE_REG, 7, NO_WAIT_INT, data, 7);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	retval = ms_send_cmd(chip, BLOCK_WRITE, WAIT_INT);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	ms_set_err_code(chip, MS_NO_ERROR);
 	retval = ms_read_bytes(chip, GET_INT, 1, NO_WAIT_INT, &val, 1);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	if (val & INT_REG_CMDNK) {
 		ms_set_err_code(chip, MS_CMD_NK);
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	if (val & INT_REG_CED) {
 		if (val & INT_REG_ERR) {
 			ms_set_err_code(chip, MS_FLASH_WRITE_ERROR);
-			TRACE_RET(chip, STATUS_FAIL);
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		}
 	}
 
@@ -1457,8 +1748,10 @@ static int ms_erase_block(struct rtsx_chip *chip, u16 phy_blk)
 
 	retval = ms_set_rw_reg_addr(chip, OverwriteFlag, MS_EXTRA_SIZE,
 				SystemParm, 6);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	ms_set_err_code(chip, MS_NO_ERROR);
 
@@ -1474,18 +1767,24 @@ static int ms_erase_block(struct rtsx_chip *chip, u16 phy_blk)
 	data[5] = 0;
 
 	retval = ms_write_bytes(chip, WRITE_REG, 6, NO_WAIT_INT, data, 6);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 ERASE_RTY:
 	retval = ms_send_cmd(chip, BLOCK_ERASE, WAIT_INT);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	ms_set_err_code(chip, MS_NO_ERROR);
 	retval = ms_read_bytes(chip, GET_INT, 1, NO_WAIT_INT, &val, 1);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	if (val & INT_REG_CMDNK) {
 		if (i < 3) {
@@ -1495,13 +1794,15 @@ ERASE_RTY:
 
 		ms_set_err_code(chip, MS_CMD_NK);
 		ms_set_bad_block(chip, phy_blk);
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	if (val & INT_REG_CED) {
 		if (val & INT_REG_ERR) {
 			ms_set_err_code(chip, MS_FLASH_WRITE_ERROR);
-			TRACE_RET(chip, STATUS_FAIL);
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		}
 	}
 
@@ -1544,13 +1845,16 @@ static int ms_init_page(struct rtsx_chip *chip, u16 phy_blk, u16 log_blk,
 	for (i = start_page; i < end_page; i++) {
 		if (detect_card_cd(chip, MS_CARD) != STATUS_SUCCESS) {
 			ms_set_err_code(chip, MS_NO_CARD);
-			TRACE_RET(chip, STATUS_FAIL);
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		}
 
 		retval = ms_write_extra_data(chip, phy_blk, i,
 					extra, MS_EXTRA_SIZE);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 	}
 
 	return STATUS_SUCCESS;
@@ -1560,7 +1864,8 @@ static int ms_copy_page(struct rtsx_chip *chip, u16 old_blk, u16 new_blk,
 		u16 log_blk, u8 start_page, u8 end_page)
 {
 	struct ms_info *ms_card = &(chip->ms_card);
-	int retval, rty_cnt, uncorrect_flag = 0;
+	bool uncorrect_flag = false;
+	int retval, rty_cnt;
 	u8 extra[MS_EXTRA_SIZE], val, i, j, data[16];
 
 	dev_dbg(rtsx_dev(chip), "Copy page from 0x%x to 0x%x, logical block is 0x%x\n",
@@ -1569,42 +1874,58 @@ static int ms_copy_page(struct rtsx_chip *chip, u16 old_blk, u16 new_blk,
 		start_page, end_page);
 
 	retval = ms_read_extra_data(chip, new_blk, 0, extra, MS_EXTRA_SIZE);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	retval = ms_read_status_reg(chip);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
-	RTSX_READ_REG(chip, PPBUF_BASE2, &val);
+	retval = rtsx_read_register(chip, PPBUF_BASE2, &val);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 
 	if (val & BUF_FULL) {
 		retval = ms_send_cmd(chip, CLEAR_BUF, WAIT_INT);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 
 		retval = ms_read_bytes(chip, GET_INT, 1, NO_WAIT_INT, &val, 1);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 
 		if (!(val & INT_REG_CED)) {
 			ms_set_err_code(chip, MS_FLASH_WRITE_ERROR);
-			TRACE_RET(chip, STATUS_FAIL);
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		}
 	}
 
 	for (i = start_page; i < end_page; i++) {
 		if (detect_card_cd(chip, MS_CARD) != STATUS_SUCCESS) {
 			ms_set_err_code(chip, MS_NO_CARD);
-			TRACE_RET(chip, STATUS_FAIL);
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		}
 
 		ms_read_extra_data(chip, old_blk, i, extra, MS_EXTRA_SIZE);
 
 		retval = ms_set_rw_reg_addr(chip, OverwriteFlag,
 					MS_EXTRA_SIZE, SystemParm, 6);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 
 		ms_set_err_code(chip, MS_NO_ERROR);
 
@@ -1621,39 +1942,48 @@ static int ms_copy_page(struct rtsx_chip *chip, u16 old_blk, u16 new_blk,
 
 		retval = ms_write_bytes(chip, WRITE_REG, 6, NO_WAIT_INT,
 					data, 6);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 
 		retval = ms_send_cmd(chip, BLOCK_READ, WAIT_INT);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 
 		ms_set_err_code(chip, MS_NO_ERROR);
 		retval = ms_read_bytes(chip, GET_INT, 1, NO_WAIT_INT, &val, 1);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 
 		if (val & INT_REG_CMDNK) {
 			ms_set_err_code(chip, MS_CMD_NK);
-			TRACE_RET(chip, STATUS_FAIL);
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		}
 
 		if (val & INT_REG_CED) {
 			if (val & INT_REG_ERR) {
 				retval = ms_read_status_reg(chip);
 				if (retval != STATUS_SUCCESS) {
-					uncorrect_flag = 1;
+					uncorrect_flag = true;
 					dev_dbg(rtsx_dev(chip), "Uncorrectable error\n");
 				} else {
-					uncorrect_flag = 0;
+					uncorrect_flag = false;
 				}
 
 				retval = ms_transfer_tpc(chip,
 							MS_TM_NORMAL_READ,
 							READ_PAGE_DATA,
 							0, NO_WAIT_INT);
-				if (retval != STATUS_SUCCESS)
-					TRACE_RET(chip, STATUS_FAIL);
+				if (retval != STATUS_SUCCESS) {
+					rtsx_trace(chip);
+					return STATUS_FAIL;
+				}
 
 				if (uncorrect_flag) {
 					ms_set_page_status(log_blk, setPS_NG,
@@ -1684,13 +2014,16 @@ static int ms_copy_page(struct rtsx_chip *chip, u16 old_blk, u16 new_blk,
 					if (retval == STATUS_SUCCESS)
 						break;
 				}
-				if (rty_cnt == MS_MAX_RETRY_COUNT)
-					TRACE_RET(chip, STATUS_FAIL);
+				if (rty_cnt == MS_MAX_RETRY_COUNT) {
+					rtsx_trace(chip);
+					return STATUS_FAIL;
+				}
 			}
 
 			if (!(val & INT_REG_BREQ)) {
 				ms_set_err_code(chip, MS_BREQ_ERROR);
-				TRACE_RET(chip, STATUS_FAIL);
+				rtsx_trace(chip);
+				return STATUS_FAIL;
 			}
 		}
 
@@ -1724,35 +2057,45 @@ static int ms_copy_page(struct rtsx_chip *chip, u16 old_blk, u16 new_blk,
 
 		retval = ms_write_bytes(chip, WRITE_REG, (6 + MS_EXTRA_SIZE),
 					NO_WAIT_INT, data, 16);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 
 		retval = ms_send_cmd(chip, BLOCK_WRITE, WAIT_INT);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 
 		ms_set_err_code(chip, MS_NO_ERROR);
 		retval = ms_read_bytes(chip, GET_INT, 1, NO_WAIT_INT, &val, 1);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 
 		if (val & INT_REG_CMDNK) {
 			ms_set_err_code(chip, MS_CMD_NK);
-			TRACE_RET(chip, STATUS_FAIL);
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		}
 
 		if (val & INT_REG_CED) {
 			if (val & INT_REG_ERR) {
 				ms_set_err_code(chip, MS_FLASH_WRITE_ERROR);
-				TRACE_RET(chip, STATUS_FAIL);
+				rtsx_trace(chip);
+				return STATUS_FAIL;
 			}
 		}
 
 		if (i == 0) {
 			retval = ms_set_rw_reg_addr(chip, OverwriteFlag,
 						MS_EXTRA_SIZE, SystemParm, 7);
-			if (retval != STATUS_SUCCESS)
-				TRACE_RET(chip, STATUS_FAIL);
+			if (retval != STATUS_SUCCESS) {
+				rtsx_trace(chip);
+				return STATUS_FAIL;
+			}
 
 			ms_set_err_code(chip, MS_NO_ERROR);
 
@@ -1771,29 +2114,37 @@ static int ms_copy_page(struct rtsx_chip *chip, u16 old_blk, u16 new_blk,
 
 			retval = ms_write_bytes(chip, WRITE_REG, 7,
 						NO_WAIT_INT, data, 8);
-			if (retval != STATUS_SUCCESS)
-				TRACE_RET(chip, STATUS_FAIL);
+			if (retval != STATUS_SUCCESS) {
+				rtsx_trace(chip);
+				return STATUS_FAIL;
+			}
 
 			retval = ms_send_cmd(chip, BLOCK_WRITE, WAIT_INT);
-			if (retval != STATUS_SUCCESS)
-				TRACE_RET(chip, STATUS_FAIL);
+			if (retval != STATUS_SUCCESS) {
+				rtsx_trace(chip);
+				return STATUS_FAIL;
+			}
 
 			ms_set_err_code(chip, MS_NO_ERROR);
 			retval = ms_read_bytes(chip, GET_INT, 1,
 					NO_WAIT_INT, &val, 1);
-			if (retval != STATUS_SUCCESS)
-				TRACE_RET(chip, STATUS_FAIL);
+			if (retval != STATUS_SUCCESS) {
+				rtsx_trace(chip);
+				return STATUS_FAIL;
+			}
 
 			if (val & INT_REG_CMDNK) {
 				ms_set_err_code(chip, MS_CMD_NK);
-				TRACE_RET(chip, STATUS_FAIL);
+				rtsx_trace(chip);
+				return STATUS_FAIL;
 			}
 
 			if (val & INT_REG_CED) {
 				if (val & INT_REG_ERR) {
 					ms_set_err_code(chip,
 							MS_FLASH_WRITE_ERROR);
-					TRACE_RET(chip, STATUS_FAIL);
+					rtsx_trace(chip);
+					return STATUS_FAIL;
 				}
 			}
 		}
@@ -1814,20 +2165,30 @@ static int reset_ms(struct rtsx_chip *chip)
 #endif
 
 	retval = ms_prepare_reset(chip);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	ms_card->ms_type |= TYPE_MS;
 
 	retval = ms_send_cmd(chip, MS_RESET, NO_WAIT_INT);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	retval = ms_read_status_reg(chip);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
-	RTSX_READ_REG(chip, PPBUF_BASE2, &val);
+	retval = rtsx_read_register(chip, PPBUF_BASE2, &val);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 	if (val & WRT_PRTCT)
 		chip->card_wp |= MS_CARD;
 	else
@@ -1840,7 +2201,8 @@ RE_SEARCH:
 	while (i < (MAX_DEFECTIVE_BLOCK + 2)) {
 		if (detect_card_cd(chip, MS_CARD) != STATUS_SUCCESS) {
 			ms_set_err_code(chip, MS_NO_CARD);
-			TRACE_RET(chip, STATUS_FAIL);
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		}
 
 		retval = ms_read_extra_data(chip, i, 0, extra, MS_EXTRA_SIZE);
@@ -1860,7 +2222,8 @@ RE_SEARCH:
 
 	if (i == (MAX_DEFECTIVE_BLOCK + 2)) {
 		dev_dbg(rtsx_dev(chip), "No boot block found!");
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	for (j = 0; j < 3; j++) {
@@ -1875,8 +2238,10 @@ RE_SEARCH:
 	}
 
 	retval = ms_read_page(chip, ms_card->boot_block, 0);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	/* Read MS system information as sys_info */
 	rtsx_init_cmd(chip);
@@ -1885,8 +2250,10 @@ RE_SEARCH:
 		rtsx_add_cmd(chip, READ_REG_CMD, PPBUF_BASE2 + 0x1A0 + i, 0, 0);
 
 	retval = rtsx_send_cmd(chip, MS_CARD, 100);
-	if (retval < 0)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval < 0) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	ptr = rtsx_get_cmd_data(chip);
 	memcpy(ms_card->raw_sys_info, ptr, 96);
@@ -1908,8 +2275,10 @@ RE_SEARCH:
 	rtsx_add_cmd(chip, READ_REG_CMD, MS_4bit_Support, 0, 0);
 
 	retval = rtsx_send_cmd(chip, MS_CARD, 100);
-	if (retval < 0)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval < 0) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	ptr = rtsx_get_cmd_data(chip);
 
@@ -1982,19 +2351,36 @@ RE_SEARCH:
 	/* Switch I/F Mode */
 	if (ptr[15]) {
 		retval = ms_set_rw_reg_addr(chip, 0, 0, SystemParm, 1);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 
-		RTSX_WRITE_REG(chip, PPBUF_BASE2, 0xFF, 0x88);
-		RTSX_WRITE_REG(chip, PPBUF_BASE2 + 1, 0xFF, 0);
+		retval = rtsx_write_register(chip, PPBUF_BASE2, 0xFF, 0x88);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
+		retval = rtsx_write_register(chip, PPBUF_BASE2 + 1, 0xFF, 0);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
 
 		retval = ms_transfer_tpc(chip, MS_TM_WRITE_BYTES, WRITE_REG, 1,
 					NO_WAIT_INT);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 
-		RTSX_WRITE_REG(chip, MS_CFG, 0x58 | MS_NO_CHECK_INT,
-			MS_BUS_WIDTH_4 | PUSH_TIME_ODD | MS_NO_CHECK_INT);
+		retval = rtsx_write_register(chip, MS_CFG,
+					     0x58 | MS_NO_CHECK_INT,
+					     MS_BUS_WIDTH_4 | PUSH_TIME_ODD | MS_NO_CHECK_INT);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
 
 		ms_card->ms_type |= MS_4BIT;
 	}
@@ -2020,29 +2406,41 @@ static int ms_init_l2p_tbl(struct rtsx_chip *chip)
 
 	size = ms_card->segment_cnt * sizeof(struct zone_entry);
 	ms_card->segment = vzalloc(size);
-	if (ms_card->segment == NULL)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (ms_card->segment == NULL) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	retval = ms_read_page(chip, ms_card->boot_block, 1);
-	if (retval != STATUS_SUCCESS)
-		TRACE_GOTO(chip, INIT_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		goto INIT_FAIL;
+	}
 
 	reg_addr = PPBUF_BASE2;
 	for (i = 0; i < (((ms_card->total_block >> 9) * 10) + 1); i++) {
+		int block_no;
+
 		retval = rtsx_read_register(chip, reg_addr++, &val1);
-		if (retval != STATUS_SUCCESS)
-			TRACE_GOTO(chip, INIT_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			goto INIT_FAIL;
+		}
 
 		retval = rtsx_read_register(chip, reg_addr++, &val2);
-		if (retval != STATUS_SUCCESS)
-			TRACE_GOTO(chip, INIT_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			goto INIT_FAIL;
+		}
 
 		defect_block = ((u16)val1 << 8) | val2;
 		if (defect_block == 0xFFFF)
 			break;
 
 		seg_no = defect_block / 512;
-		ms_card->segment[seg_no].defect_list[ms_card->segment[seg_no].disable_count++] = defect_block;
+
+		block_no = ms_card->segment[seg_no].disable_count++;
+		ms_card->segment[seg_no].defect_list[block_no] = defect_block;
 	}
 
 	for (i = 0; i < ms_card->segment_cnt; i++) {
@@ -2187,16 +2585,19 @@ static int ms_build_l2p_tbl(struct rtsx_chip *chip, int seg_no)
 {
 	struct ms_info *ms_card = &(chip->ms_card);
 	struct zone_entry *segment;
-	int retval, table_size, disable_cnt, defect_flag, i;
-	u16 start, end, phy_blk, log_blk, tmp_blk;
+	bool defect_flag;
+	int retval, table_size, disable_cnt, i;
+	u16 start, end, phy_blk, log_blk, tmp_blk, idx;
 	u8 extra[MS_EXTRA_SIZE], us1, us2;
 
 	dev_dbg(rtsx_dev(chip), "ms_build_l2p_tbl: %d\n", seg_no);
 
 	if (ms_card->segment == NULL) {
 		retval = ms_init_l2p_tbl(chip);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, retval);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return retval;
+		}
 	}
 
 	if (ms_card->segment[seg_no].build_flag) {
@@ -2214,15 +2615,19 @@ static int ms_build_l2p_tbl(struct rtsx_chip *chip, int seg_no)
 
 	if (segment->l2p_table == NULL) {
 		segment->l2p_table = vmalloc(table_size * 2);
-		if (segment->l2p_table == NULL)
-			TRACE_GOTO(chip, BUILD_FAIL);
+		if (segment->l2p_table == NULL) {
+			rtsx_trace(chip);
+			goto BUILD_FAIL;
+		}
 	}
 	memset((u8 *)(segment->l2p_table), 0xff, table_size * 2);
 
 	if (segment->free_table == NULL) {
 		segment->free_table = vmalloc(MS_FREE_TABLE_CNT * 2);
-		if (segment->free_table == NULL)
-			TRACE_GOTO(chip, BUILD_FAIL);
+		if (segment->free_table == NULL) {
+			rtsx_trace(chip);
+			goto BUILD_FAIL;
+		}
 	}
 	memset((u8 *)(segment->free_table), 0xff, MS_FREE_TABLE_CNT * 2);
 
@@ -2236,10 +2641,10 @@ static int ms_build_l2p_tbl(struct rtsx_chip *chip, int seg_no)
 
 	for (phy_blk = start; phy_blk < end; phy_blk++) {
 		if (disable_cnt) {
-			defect_flag = 0;
+			defect_flag = false;
 			for (i = 0; i < segment->disable_count; i++) {
 				if (phy_blk == segment->defect_list[i]) {
-					defect_flag = 1;
+					defect_flag = true;
 					break;
 				}
 			}
@@ -2299,13 +2704,15 @@ static int ms_build_l2p_tbl(struct rtsx_chip *chip, int seg_no)
 			continue;
 		}
 
-		if (segment->l2p_table[log_blk - ms_start_idx[seg_no]] == 0xFFFF) {
-			segment->l2p_table[log_blk - ms_start_idx[seg_no]] = phy_blk;
+		idx = log_blk - ms_start_idx[seg_no];
+
+		if (segment->l2p_table[idx] == 0xFFFF) {
+			segment->l2p_table[idx] = phy_blk;
 			continue;
 		}
 
 		us1 = extra[0] & 0x10;
-		tmp_blk = segment->l2p_table[log_blk - ms_start_idx[seg_no]];
+		tmp_blk = segment->l2p_table[idx];
 		retval = ms_read_extra_data(chip, tmp_blk, 0,
 					extra, MS_EXTRA_SIZE);
 		if (retval != STATUS_SUCCESS)
@@ -2336,17 +2743,20 @@ static int ms_build_l2p_tbl(struct rtsx_chip *chip, int seg_no)
 
 	for (log_blk = ms_start_idx[seg_no];
 	     log_blk < ms_start_idx[seg_no + 1]; log_blk++) {
-		if (segment->l2p_table[log_blk-ms_start_idx[seg_no]] == 0xFFFF) {
+		idx = log_blk - ms_start_idx[seg_no];
+		if (segment->l2p_table[idx] == 0xFFFF) {
 			phy_blk = ms_get_unused_block(chip, seg_no);
 			if (phy_blk == 0xFFFF) {
 				chip->card_wp |= MS_CARD;
 				return STATUS_SUCCESS;
 			}
 			retval = ms_init_page(chip, phy_blk, log_blk, 0, 1);
-			if (retval != STATUS_SUCCESS)
-				TRACE_GOTO(chip, BUILD_FAIL);
+			if (retval != STATUS_SUCCESS) {
+				rtsx_trace(chip);
+				goto BUILD_FAIL;
+			}
 
-			segment->l2p_table[log_blk-ms_start_idx[seg_no]] = phy_blk;
+			segment->l2p_table[idx] = phy_blk;
 			if (seg_no == ms_card->segment_cnt - 1) {
 				if (segment->unused_blk_cnt < 2) {
 					chip->card_wp |= MS_CARD;
@@ -2374,14 +2784,18 @@ static int ms_build_l2p_tbl(struct rtsx_chip *chip, int seg_no)
 				phy_blk = ms_get_unused_block(chip, 0);
 				retval = ms_copy_page(chip, tmp_blk, phy_blk,
 						log_blk, 0, ms_card->page_off + 1);
-				if (retval != STATUS_SUCCESS)
-					TRACE_RET(chip, STATUS_FAIL);
+				if (retval != STATUS_SUCCESS) {
+					rtsx_trace(chip);
+					return STATUS_FAIL;
+				}
 
 				segment->l2p_table[log_blk] = phy_blk;
 
 				retval = ms_set_bad_block(chip, tmp_blk);
-				if (retval != STATUS_SUCCESS)
-					TRACE_RET(chip, STATUS_FAIL);
+				if (retval != STATUS_SUCCESS) {
+					rtsx_trace(chip);
+					return STATUS_FAIL;
+				}
 			}
 		}
 	}
@@ -2411,12 +2825,16 @@ int reset_ms_card(struct rtsx_chip *chip)
 	memset(ms_card, 0, sizeof(struct ms_info));
 
 	retval = enable_card_clock(chip, MS_CARD);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	retval = select_card(chip, MS_CARD);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	ms_card->ms_type = 0;
 
@@ -2424,24 +2842,31 @@ int reset_ms_card(struct rtsx_chip *chip)
 	if (retval != STATUS_SUCCESS) {
 		if (ms_card->check_ms_flow) {
 			retval = reset_ms(chip);
-			if (retval != STATUS_SUCCESS)
-				TRACE_RET(chip, STATUS_FAIL);
+			if (retval != STATUS_SUCCESS) {
+				rtsx_trace(chip);
+				return STATUS_FAIL;
+			}
 		} else {
-			TRACE_RET(chip, STATUS_FAIL);
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		}
 	}
 
 	retval = ms_set_init_para(chip);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	if (!CHK_MSPRO(ms_card)) {
 		/* Build table for the last segment,
 		 * to check if L2P table block exists, erasing it
 		 */
 		retval = ms_build_l2p_tbl(chip, ms_card->total_block / 512 - 1);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 	}
 
 	dev_dbg(rtsx_dev(chip), "ms_card->ms_type = 0x%x\n", ms_card->ms_type);
@@ -2470,8 +2895,10 @@ static int mspro_set_rw_cmd(struct rtsx_chip *chip,
 		if (retval == STATUS_SUCCESS)
 			break;
 	}
-	if (i == MS_MAX_RETRY_COUNT)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (i == MS_MAX_RETRY_COUNT) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	return STATUS_SUCCESS;
 }
@@ -2511,8 +2938,10 @@ static inline int ms_auto_tune_clock(struct rtsx_chip *chip)
 	}
 
 	retval = ms_switch_clock(chip);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	return STATUS_SUCCESS;
 }
@@ -2522,7 +2951,8 @@ static int mspro_rw_multi_sector(struct scsi_cmnd *srb,
 				u16 sector_cnt)
 {
 	struct ms_info *ms_card = &(chip->ms_card);
-	int retval, mode_2k = 0;
+	bool mode_2k = false;
+	int retval;
 	u16 count;
 	u8 val, trans_mode, rw_tpc, rw_cmd;
 
@@ -2547,7 +2977,7 @@ static int mspro_rw_multi_sector(struct scsi_cmnd *srb,
 				rw_tpc = PRO_WRITE_QUAD_DATA;
 				rw_cmd = PRO_WRITE_2K_DATA;
 			}
-			mode_2k = 1;
+			mode_2k = true;
 		}
 	} else {
 		if (srb->sc_data_direction == DMA_FROM_DEVICE) {
@@ -2560,15 +2990,21 @@ static int mspro_rw_multi_sector(struct scsi_cmnd *srb,
 	}
 
 	retval = ms_switch_clock(chip);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	if (srb->sc_data_direction == DMA_FROM_DEVICE)
 		trans_mode = MS_TM_AUTO_READ;
 	else
 		trans_mode = MS_TM_AUTO_WRITE;
 
-	RTSX_READ_REG(chip, MS_TRANS_CFG, &val);
+	retval = rtsx_read_register(chip, MS_TRANS_CFG, &val);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 
 	if (ms_card->seq_mode) {
 		if ((ms_card->pre_dir != srb->sc_data_direction)
@@ -2581,8 +3017,10 @@ static int mspro_rw_multi_sector(struct scsi_cmnd *srb,
 			ms_card->total_sec_cnt = 0;
 			if (val & MS_INT_BREQ) {
 				retval = ms_send_cmd(chip, PRO_STOP, WAIT_INT);
-				if (retval != STATUS_SUCCESS)
-					TRACE_RET(chip, STATUS_FAIL);
+				if (retval != STATUS_SUCCESS) {
+					rtsx_trace(chip);
+					return STATUS_FAIL;
+				}
 
 				rtsx_write_register(chip, RBCTL, RB_FLUSH, RB_FLUSH);
 			}
@@ -2609,7 +3047,8 @@ static int mspro_rw_multi_sector(struct scsi_cmnd *srb,
 		retval = mspro_set_rw_cmd(chip, start_sector, count, rw_cmd);
 		if (retval != STATUS_SUCCESS) {
 			ms_card->seq_mode = 0;
-			TRACE_RET(chip, STATUS_FAIL);
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		}
 	}
 
@@ -2624,7 +3063,8 @@ static int mspro_rw_multi_sector(struct scsi_cmnd *srb,
 		if (detect_card_cd(chip, MS_CARD) != STATUS_SUCCESS) {
 			chip->rw_need_retry = 0;
 			dev_dbg(rtsx_dev(chip), "No card exist, exit mspro_rw_multi_sector\n");
-			TRACE_RET(chip, STATUS_FAIL);
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		}
 
 		if (val & MS_INT_BREQ)
@@ -2636,7 +3076,8 @@ static int mspro_rw_multi_sector(struct scsi_cmnd *srb,
 			ms_auto_tune_clock(chip);
 		}
 
-		TRACE_RET(chip, retval);
+		rtsx_trace(chip);
+		return retval;
 	}
 
 	if (ms_card->seq_mode) {
@@ -2664,13 +3105,15 @@ static int mspro_read_format_progress(struct rtsx_chip *chip,
 	retval = ms_switch_clock(chip);
 	if (retval != STATUS_SUCCESS) {
 		ms_card->format_status = FORMAT_FAIL;
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	retval = rtsx_read_register(chip, MS_TRANS_CFG, &tmp);
 	if (retval != STATUS_SUCCESS) {
 		ms_card->format_status = FORMAT_FAIL;
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	if (!(tmp & MS_INT_BREQ)) {
@@ -2679,7 +3122,8 @@ static int mspro_read_format_progress(struct rtsx_chip *chip,
 			return STATUS_SUCCESS;
 		}
 		ms_card->format_status = FORMAT_FAIL;
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	if (short_data_len >= 256)
@@ -2691,14 +3135,16 @@ static int mspro_read_format_progress(struct rtsx_chip *chip,
 				MS_NO_CHECK_INT);
 	if (retval != STATUS_SUCCESS) {
 		ms_card->format_status = FORMAT_FAIL;
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	retval = ms_read_bytes(chip, PRO_READ_SHORT_DATA, cnt, WAIT_INT,
 			data, 8);
 	if (retval != STATUS_SUCCESS) {
 		ms_card->format_status = FORMAT_FAIL;
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	total_progress = (data[0] << 24) | (data[1] << 16) |
@@ -2723,7 +3169,8 @@ static int mspro_read_format_progress(struct rtsx_chip *chip,
 		retval = rtsx_read_register(chip, MS_TRANS_CFG, &tmp);
 		if (retval != STATUS_SUCCESS) {
 			ms_card->format_status = FORMAT_FAIL;
-			TRACE_RET(chip, STATUS_FAIL);
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		}
 		if (tmp & (MS_INT_CED | MS_INT_CMDNK |
 				MS_INT_BREQ | MS_INT_ERR))
@@ -2735,17 +3182,20 @@ static int mspro_read_format_progress(struct rtsx_chip *chip,
 	retval = rtsx_write_register(chip, MS_CFG, MS_NO_CHECK_INT, 0);
 	if (retval != STATUS_SUCCESS) {
 		ms_card->format_status = FORMAT_FAIL;
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	if (i == 5000) {
 		ms_card->format_status = FORMAT_FAIL;
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	if (tmp & (MS_INT_CMDNK | MS_INT_ERR)) {
 		ms_card->format_status = FORMAT_FAIL;
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	if (tmp & MS_INT_CED) {
@@ -2756,7 +3206,8 @@ static int mspro_read_format_progress(struct rtsx_chip *chip,
 	} else {
 		ms_card->format_status = FORMAT_FAIL;
 		ms_card->pro_under_formatting = 0;
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	return STATUS_SUCCESS;
@@ -2780,7 +3231,7 @@ void mspro_polling_format_status(struct rtsx_chip *chip)
 }
 
 int mspro_format(struct scsi_cmnd *srb, struct rtsx_chip *chip,
-		int short_data_len, int quick_format)
+		int short_data_len, bool quick_format)
 {
 	struct ms_info *ms_card = &(chip->ms_card);
 	int retval, i;
@@ -2788,12 +3239,16 @@ int mspro_format(struct scsi_cmnd *srb, struct rtsx_chip *chip,
 	u16 para;
 
 	retval = ms_switch_clock(chip);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	retval = ms_set_rw_reg_addr(chip, 0x00, 0x00, Pro_TPCParm, 0x01);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	memset(buf, 0, 2);
 	switch (short_data_len) {
@@ -2818,8 +3273,10 @@ int mspro_format(struct scsi_cmnd *srb, struct rtsx_chip *chip,
 		if (retval == STATUS_SUCCESS)
 			break;
 	}
-	if (i == MS_MAX_RETRY_COUNT)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (i == MS_MAX_RETRY_COUNT) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	if (quick_format)
 		para = 0x0000;
@@ -2827,13 +3284,21 @@ int mspro_format(struct scsi_cmnd *srb, struct rtsx_chip *chip,
 		para = 0x0001;
 
 	retval = mspro_set_rw_cmd(chip, 0, para, PRO_FORMAT);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
-	RTSX_READ_REG(chip, MS_TRANS_CFG, &tmp);
+	retval = rtsx_read_register(chip, MS_TRANS_CFG, &tmp);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 
-	if (tmp & (MS_INT_CMDNK | MS_INT_ERR))
-		TRACE_RET(chip, STATUS_FAIL);
+	if (tmp & (MS_INT_CMDNK | MS_INT_ERR)) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	if ((tmp & (MS_INT_BREQ | MS_INT_CED)) == MS_INT_BREQ) {
 		ms_card->pro_under_formatting = 1;
@@ -2850,7 +3315,8 @@ int mspro_format(struct scsi_cmnd *srb, struct rtsx_chip *chip,
 		return STATUS_SUCCESS;
 	}
 
-	TRACE_RET(chip, STATUS_FAIL);
+	rtsx_trace(chip);
+	return STATUS_FAIL;
 }
 
 
@@ -2869,14 +3335,17 @@ static int ms_read_multiple_pages(struct rtsx_chip *chip, u16 phy_blk,
 	if (retval == STATUS_SUCCESS) {
 		if ((extra[1] & 0x30) != 0x30) {
 			ms_set_err_code(chip, MS_FLASH_READ_ERROR);
-			TRACE_RET(chip, STATUS_FAIL);
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		}
 	}
 
 	retval = ms_set_rw_reg_addr(chip, OverwriteFlag, MS_EXTRA_SIZE,
 				SystemParm, 6);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	if (CHK_MS4BIT(ms_card))
 		data[0] = 0x88;
@@ -2895,14 +3364,18 @@ static int ms_read_multiple_pages(struct rtsx_chip *chip, u16 phy_blk,
 		if (retval == STATUS_SUCCESS)
 			break;
 	}
-	if (i == MS_MAX_RETRY_COUNT)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (i == MS_MAX_RETRY_COUNT) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	ms_set_err_code(chip, MS_NO_ERROR);
 
 	retval = ms_send_cmd(chip, BLOCK_READ, WAIT_INT);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	ptr = buf;
 
@@ -2911,16 +3384,20 @@ static int ms_read_multiple_pages(struct rtsx_chip *chip, u16 phy_blk,
 
 		if (detect_card_cd(chip, MS_CARD) != STATUS_SUCCESS) {
 			ms_set_err_code(chip, MS_NO_CARD);
-			TRACE_RET(chip, STATUS_FAIL);
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		}
 
 		retval = ms_read_bytes(chip, GET_INT, 1, NO_WAIT_INT, &val, 1);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 
 		if (val & INT_REG_CMDNK) {
 			ms_set_err_code(chip, MS_CMD_NK);
-			TRACE_RET(chip, STATUS_FAIL);
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		}
 		if (val & INT_REG_ERR) {
 			if (val & INT_REG_BREQ) {
@@ -2933,34 +3410,42 @@ static int ms_read_multiple_pages(struct rtsx_chip *chip, u16 phy_blk,
 								page_addr, extra, MS_EXTRA_SIZE);
 					}
 					ms_set_err_code(chip, MS_FLASH_READ_ERROR);
-					TRACE_RET(chip, STATUS_FAIL);
+					rtsx_trace(chip);
+					return STATUS_FAIL;
 				}
 			} else {
 				ms_set_err_code(chip, MS_FLASH_READ_ERROR);
-				TRACE_RET(chip, STATUS_FAIL);
+				rtsx_trace(chip);
+				return STATUS_FAIL;
 			}
 		} else {
 			if (!(val & INT_REG_BREQ)) {
 				ms_set_err_code(chip, MS_BREQ_ERROR);
-				TRACE_RET(chip, STATUS_FAIL);
+				rtsx_trace(chip);
+				return STATUS_FAIL;
 			}
 		}
 
 		if (page_addr == (end_page - 1)) {
 			if (!(val & INT_REG_CED)) {
 				retval = ms_send_cmd(chip, BLOCK_END, WAIT_INT);
-				if (retval != STATUS_SUCCESS)
-					TRACE_RET(chip, STATUS_FAIL);
+				if (retval != STATUS_SUCCESS) {
+					rtsx_trace(chip);
+					return STATUS_FAIL;
+				}
 			}
 
 			retval = ms_read_bytes(chip, GET_INT, 1, NO_WAIT_INT,
 					&val, 1);
-			if (retval != STATUS_SUCCESS)
-				TRACE_RET(chip, STATUS_FAIL);
+			if (retval != STATUS_SUCCESS) {
+				rtsx_trace(chip);
+				return STATUS_FAIL;
+			}
 
 			if (!(val & INT_REG_CED)) {
 				ms_set_err_code(chip, MS_FLASH_READ_ERROR);
-				TRACE_RET(chip, STATUS_FAIL);
+				rtsx_trace(chip);
+				return STATUS_FAIL;
 			}
 
 			trans_cfg = NO_WAIT_INT;
@@ -2993,19 +3478,22 @@ static int ms_read_multiple_pages(struct rtsx_chip *chip, u16 phy_blk,
 			if (retval == -ETIMEDOUT) {
 				ms_set_err_code(chip, MS_TO_ERROR);
 				rtsx_clear_ms_error(chip);
-				TRACE_RET(chip, STATUS_TIMEDOUT);
+				rtsx_trace(chip);
+				return STATUS_TIMEDOUT;
 			}
 
 			retval = rtsx_read_register(chip, MS_TRANS_CFG, &val);
 			if (retval != STATUS_SUCCESS) {
 				ms_set_err_code(chip, MS_TO_ERROR);
 				rtsx_clear_ms_error(chip);
-				TRACE_RET(chip, STATUS_TIMEDOUT);
+				rtsx_trace(chip);
+				return STATUS_TIMEDOUT;
 			}
 			if (val & (MS_CRC16_ERR | MS_RDY_TIMEOUT)) {
 				ms_set_err_code(chip, MS_CRC16_ERROR);
 				rtsx_clear_ms_error(chip);
-				TRACE_RET(chip, STATUS_FAIL);
+				rtsx_trace(chip);
+				return STATUS_FAIL;
 			}
 		}
 
@@ -3029,8 +3517,10 @@ static int ms_write_multiple_pages(struct rtsx_chip *chip, u16 old_blk,
 	if (!start_page) {
 		retval = ms_set_rw_reg_addr(chip, OverwriteFlag, MS_EXTRA_SIZE,
 					SystemParm, 7);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 
 		if (CHK_MS4BIT(ms_card))
 			data[0] = 0x88;
@@ -3047,24 +3537,32 @@ static int ms_write_multiple_pages(struct rtsx_chip *chip, u16 old_blk,
 
 		retval = ms_write_bytes(chip, WRITE_REG, 7, NO_WAIT_INT,
 					data, 8);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 
 		retval = ms_send_cmd(chip, BLOCK_WRITE, WAIT_INT);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 
 		ms_set_err_code(chip, MS_NO_ERROR);
 		retval = ms_transfer_tpc(chip, MS_TM_READ_BYTES, GET_INT, 1,
 					NO_WAIT_INT);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 	}
 
 	retval = ms_set_rw_reg_addr(chip, OverwriteFlag, MS_EXTRA_SIZE,
 				SystemParm, (6 + MS_EXTRA_SIZE));
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	ms_set_err_code(chip, MS_NO_ERROR);
 
@@ -3096,20 +3594,26 @@ static int ms_write_multiple_pages(struct rtsx_chip *chip, u16 old_blk,
 		if (retval == STATUS_SUCCESS)
 			break;
 	}
-	if (i == MS_MAX_RETRY_COUNT)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (i == MS_MAX_RETRY_COUNT) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	for (i = 0; i < MS_MAX_RETRY_COUNT; i++) {
 		retval = ms_send_cmd(chip, BLOCK_WRITE, WAIT_INT);
 		if (retval == STATUS_SUCCESS)
 			break;
 	}
-	if (i == MS_MAX_RETRY_COUNT)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (i == MS_MAX_RETRY_COUNT) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	retval = ms_read_bytes(chip, GET_INT, 1, NO_WAIT_INT, &val, 1);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	ptr = buf;
 	for (page_addr = start_page; page_addr < end_page; page_addr++) {
@@ -3117,20 +3621,24 @@ static int ms_write_multiple_pages(struct rtsx_chip *chip, u16 old_blk,
 
 		if (detect_card_cd(chip, MS_CARD) != STATUS_SUCCESS) {
 			ms_set_err_code(chip, MS_NO_CARD);
-			TRACE_RET(chip, STATUS_FAIL);
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		}
 
 		if (val & INT_REG_CMDNK) {
 			ms_set_err_code(chip, MS_CMD_NK);
-			TRACE_RET(chip, STATUS_FAIL);
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		}
 		if (val & INT_REG_ERR) {
 			ms_set_err_code(chip, MS_FLASH_WRITE_ERROR);
-			TRACE_RET(chip, STATUS_FAIL);
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		}
 		if (!(val & INT_REG_BREQ)) {
 			ms_set_err_code(chip, MS_BREQ_ERROR);
-			TRACE_RET(chip, STATUS_FAIL);
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		}
 
 		udelay(30);
@@ -3161,34 +3669,43 @@ static int ms_write_multiple_pages(struct rtsx_chip *chip, u16 old_blk,
 			ms_set_err_code(chip, MS_TO_ERROR);
 			rtsx_clear_ms_error(chip);
 
-			if (retval == -ETIMEDOUT)
-				TRACE_RET(chip, STATUS_TIMEDOUT);
-			else
-				TRACE_RET(chip, STATUS_FAIL);
+			if (retval == -ETIMEDOUT) {
+				rtsx_trace(chip);
+				return STATUS_TIMEDOUT;
+			}
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		}
 
 		retval = ms_read_bytes(chip, GET_INT, 1, NO_WAIT_INT, &val, 1);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 
 		if ((end_page - start_page) == 1) {
 			if (!(val & INT_REG_CED)) {
 				ms_set_err_code(chip, MS_FLASH_WRITE_ERROR);
-				TRACE_RET(chip, STATUS_FAIL);
+				rtsx_trace(chip);
+				return STATUS_FAIL;
 			}
 		} else {
 			if (page_addr == (end_page - 1)) {
 				if (!(val & INT_REG_CED)) {
 					retval = ms_send_cmd(chip, BLOCK_END,
 							WAIT_INT);
-					if (retval != STATUS_SUCCESS)
-						TRACE_RET(chip, STATUS_FAIL);
+					if (retval != STATUS_SUCCESS) {
+						rtsx_trace(chip);
+						return STATUS_FAIL;
+					}
 				}
 
 				retval = ms_read_bytes(chip, GET_INT, 1,
 						NO_WAIT_INT, &val, 1);
-				if (retval != STATUS_SUCCESS)
-					TRACE_RET(chip, STATUS_FAIL);
+				if (retval != STATUS_SUCCESS) {
+					rtsx_trace(chip);
+					return STATUS_FAIL;
+				}
 			}
 
 			if ((page_addr == (end_page - 1)) ||
@@ -3196,7 +3713,8 @@ static int ms_write_multiple_pages(struct rtsx_chip *chip, u16 old_blk,
 				if (!(val & INT_REG_CED)) {
 					ms_set_err_code(chip,
 							MS_FLASH_WRITE_ERROR);
-					TRACE_RET(chip, STATUS_FAIL);
+					rtsx_trace(chip);
+					return STATUS_FAIL;
 				}
 			}
 		}
@@ -3217,8 +3735,10 @@ static int ms_finish_write(struct rtsx_chip *chip, u16 old_blk, u16 new_blk,
 
 	retval = ms_copy_page(chip, old_blk, new_blk, log_blk,
 			page_off, ms_card->page_off + 1);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	seg_no = old_blk >> 9;
 
@@ -3244,8 +3764,10 @@ static int ms_prepare_write(struct rtsx_chip *chip, u16 old_blk, u16 new_blk,
 	if (start_page) {
 		retval = ms_copy_page(chip, old_blk, new_blk, log_blk,
 				0, start_page);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 	}
 
 	return STATUS_SUCCESS;
@@ -3260,8 +3782,10 @@ int ms_delay_write(struct rtsx_chip *chip)
 
 	if (delay_write->delay_write_flag) {
 		retval = ms_set_init_para(chip);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 
 		delay_write->delay_write_flag = 0;
 		retval = ms_finish_write(chip,
@@ -3269,8 +3793,10 @@ int ms_delay_write(struct rtsx_chip *chip)
 					delay_write->new_phyblock,
 					delay_write->logblock,
 					delay_write->pageoff);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 	}
 
 	return STATUS_SUCCESS;
@@ -3309,7 +3835,8 @@ static int ms_rw_multi_sector(struct scsi_cmnd *srb, struct rtsx_chip *chip,
 	retval = ms_switch_clock(chip);
 	if (retval != STATUS_SUCCESS) {
 		ms_rw_fail(srb, chip);
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	log_blk = (u16)(start_sector >> ms_card->block_shift);
@@ -3325,7 +3852,8 @@ static int ms_rw_multi_sector(struct scsi_cmnd *srb, struct rtsx_chip *chip,
 		if (retval != STATUS_SUCCESS) {
 			chip->card_fail |= MS_CARD;
 			set_sense_type(chip, lun, SENSE_TYPE_MEDIA_NOT_PRESENT);
-			TRACE_RET(chip, STATUS_FAIL);
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		}
 	}
 
@@ -3342,7 +3870,8 @@ static int ms_rw_multi_sector(struct scsi_cmnd *srb, struct rtsx_chip *chip,
 			if (retval != STATUS_SUCCESS) {
 				set_sense_type(chip, lun,
 					SENSE_TYPE_MEDIA_WRITE_ERR);
-				TRACE_RET(chip, STATUS_FAIL);
+				rtsx_trace(chip);
+				return STATUS_FAIL;
 			}
 			old_blk = delay_write->old_phyblock;
 			new_blk = delay_write->new_phyblock;
@@ -3357,7 +3886,8 @@ static int ms_rw_multi_sector(struct scsi_cmnd *srb, struct rtsx_chip *chip,
 			if (retval != STATUS_SUCCESS) {
 				set_sense_type(chip, lun,
 					SENSE_TYPE_MEDIA_WRITE_ERR);
-				TRACE_RET(chip, STATUS_FAIL);
+				rtsx_trace(chip);
+				return STATUS_FAIL;
 			}
 #endif
 			old_blk = ms_get_l2p_tbl(chip, seg_no,
@@ -3366,7 +3896,8 @@ static int ms_rw_multi_sector(struct scsi_cmnd *srb, struct rtsx_chip *chip,
 			if ((old_blk == 0xFFFF) || (new_blk == 0xFFFF)) {
 				set_sense_type(chip, lun,
 					SENSE_TYPE_MEDIA_WRITE_ERR);
-				TRACE_RET(chip, STATUS_FAIL);
+				rtsx_trace(chip);
+				return STATUS_FAIL;
 			}
 
 			retval = ms_prepare_write(chip, old_blk, new_blk,
@@ -3375,11 +3906,13 @@ static int ms_rw_multi_sector(struct scsi_cmnd *srb, struct rtsx_chip *chip,
 				if (detect_card_cd(chip, MS_CARD) != STATUS_SUCCESS) {
 					set_sense_type(chip, lun,
 						SENSE_TYPE_MEDIA_NOT_PRESENT);
-					TRACE_RET(chip, STATUS_FAIL);
+					rtsx_trace(chip);
+					return STATUS_FAIL;
 				}
 				set_sense_type(chip, lun,
 					SENSE_TYPE_MEDIA_WRITE_ERR);
-				TRACE_RET(chip, STATUS_FAIL);
+				rtsx_trace(chip);
+				return STATUS_FAIL;
 			}
 #ifdef MS_DELAY_WRITE
 		}
@@ -3391,11 +3924,13 @@ static int ms_rw_multi_sector(struct scsi_cmnd *srb, struct rtsx_chip *chip,
 			if (detect_card_cd(chip, MS_CARD) != STATUS_SUCCESS) {
 				set_sense_type(chip, lun,
 					SENSE_TYPE_MEDIA_NOT_PRESENT);
-				TRACE_RET(chip, STATUS_FAIL);
+				rtsx_trace(chip);
+				return STATUS_FAIL;
 			}
 			set_sense_type(chip, lun,
 				SENSE_TYPE_MEDIA_UNRECOVER_READ_ERR);
-			TRACE_RET(chip, STATUS_FAIL);
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		}
 #endif
 		old_blk = ms_get_l2p_tbl(chip, seg_no,
@@ -3403,7 +3938,8 @@ static int ms_rw_multi_sector(struct scsi_cmnd *srb, struct rtsx_chip *chip,
 		if (old_blk == 0xFFFF) {
 			set_sense_type(chip, lun,
 				SENSE_TYPE_MEDIA_UNRECOVER_READ_ERR);
-			TRACE_RET(chip, STATUS_FAIL);
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		}
 	}
 
@@ -3436,10 +3972,12 @@ static int ms_rw_multi_sector(struct scsi_cmnd *srb, struct rtsx_chip *chip,
 			if (detect_card_cd(chip, MS_CARD) != STATUS_SUCCESS) {
 				set_sense_type(chip, lun,
 					SENSE_TYPE_MEDIA_NOT_PRESENT);
-				TRACE_RET(chip, STATUS_FAIL);
+				rtsx_trace(chip);
+				return STATUS_FAIL;
 			}
 			ms_rw_fail(srb, chip);
-			TRACE_RET(chip, STATUS_FAIL);
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		}
 
 		if (srb->sc_data_direction == DMA_TO_DEVICE) {
@@ -3475,7 +4013,8 @@ static int ms_rw_multi_sector(struct scsi_cmnd *srb, struct rtsx_chip *chip,
 				chip->card_fail |= MS_CARD;
 				set_sense_type(chip, lun,
 					SENSE_TYPE_MEDIA_NOT_PRESENT);
-				TRACE_RET(chip, STATUS_FAIL);
+				rtsx_trace(chip);
+				return STATUS_FAIL;
 			}
 		}
 
@@ -3483,14 +4022,16 @@ static int ms_rw_multi_sector(struct scsi_cmnd *srb, struct rtsx_chip *chip,
 					log_blk - ms_start_idx[seg_no]);
 		if (old_blk == 0xFFFF) {
 			ms_rw_fail(srb, chip);
-			TRACE_RET(chip, STATUS_FAIL);
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		}
 
 		if (srb->sc_data_direction == DMA_TO_DEVICE) {
 			new_blk = ms_get_unused_block(chip, seg_no);
 			if (new_blk == 0xFFFF) {
 				ms_rw_fail(srb, chip);
-				TRACE_RET(chip, STATUS_FAIL);
+				rtsx_trace(chip);
+				return STATUS_FAIL;
 			}
 		}
 
@@ -3515,11 +4056,13 @@ static int ms_rw_multi_sector(struct scsi_cmnd *srb, struct rtsx_chip *chip,
 				if (detect_card_cd(chip, MS_CARD) != STATUS_SUCCESS) {
 					set_sense_type(chip, lun,
 						SENSE_TYPE_MEDIA_NOT_PRESENT);
-					TRACE_RET(chip, STATUS_FAIL);
+					rtsx_trace(chip);
+					return STATUS_FAIL;
 				}
 
 				ms_rw_fail(srb, chip);
-				TRACE_RET(chip, STATUS_FAIL);
+				rtsx_trace(chip);
+				return STATUS_FAIL;
 			}
 #endif
 		}
@@ -3581,12 +4124,16 @@ static int ms_poll_int(struct rtsx_chip *chip)
 	rtsx_add_cmd(chip, CHECK_REG_CMD, MS_TRANS_CFG, MS_INT_CED, MS_INT_CED);
 
 	retval = rtsx_send_cmd(chip, MS_CARD, 5000);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	val = *rtsx_get_cmd_data(chip);
-	if (val & MS_INT_ERR)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (val & MS_INT_ERR) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	return STATUS_SUCCESS;
 }
@@ -3649,12 +4196,15 @@ static int mg_send_ex_cmd(struct rtsx_chip *chip, u8 cmd, u8 entry_num)
 		if (retval == STATUS_SUCCESS)
 			break;
 	}
-	if (i == MS_MAX_RETRY_COUNT)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (i == MS_MAX_RETRY_COUNT) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	if (check_ms_err(chip)) {
 		rtsx_clear_ms_error(chip);
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	return STATUS_SUCCESS;
@@ -3671,8 +4221,10 @@ static int mg_set_tpc_para_sub(struct rtsx_chip *chip, int type,
 	else
 		retval = ms_set_rw_reg_addr(chip, 0, 0, Pro_DataCount1, 6);
 
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	buf[0] = 0;
 	buf[1] = 0;
@@ -3684,8 +4236,10 @@ static int mg_set_tpc_para_sub(struct rtsx_chip *chip, int type,
 	}
 	retval = ms_write_bytes(chip, PRO_WRITE_REG, (type == 0) ? 1 : 6,
 				NO_WAIT_INT, buf, 6);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	return STATUS_SUCCESS;
 }
@@ -3699,19 +4253,23 @@ int mg_set_leaf_id(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 
 	if (scsi_bufflen(srb) < 12) {
 		set_sense_type(chip, lun, SENSE_TYPE_MEDIA_INVALID_CMD_FIELD);
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	ms_cleanup_work(chip);
 
 	retval = ms_switch_clock(chip);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	retval = mg_send_ex_cmd(chip, MG_SET_LID, 0);
 	if (retval != STATUS_SUCCESS) {
 		set_sense_type(chip, lun, SENSE_TYPE_MG_KEY_FAIL_NOT_ESTAB);
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	memset(buf1, 0, 32);
@@ -3723,12 +4281,14 @@ int mg_set_leaf_id(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 				buf1, 32);
 	if (retval != STATUS_SUCCESS) {
 		set_sense_type(chip, lun, SENSE_TYPE_MG_KEY_FAIL_NOT_ESTAB);
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 	if (check_ms_err(chip)) {
 		set_sense_type(chip, lun, SENSE_TYPE_MG_KEY_FAIL_NOT_ESTAB);
 		rtsx_clear_ms_error(chip);
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	return STATUS_SUCCESS;
@@ -3744,12 +4304,16 @@ int mg_get_local_EKB(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	ms_cleanup_work(chip);
 
 	retval = ms_switch_clock(chip);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	buf = kmalloc(1540, GFP_KERNEL);
-	if (!buf)
-		TRACE_RET(chip, STATUS_ERROR);
+	if (!buf) {
+		rtsx_trace(chip);
+		return STATUS_ERROR;
+	}
 
 	buf[0] = 0x04;
 	buf[1] = 0x1A;
@@ -3759,7 +4323,8 @@ int mg_get_local_EKB(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	retval = mg_send_ex_cmd(chip, MG_GET_LEKB, 0);
 	if (retval != STATUS_SUCCESS) {
 		set_sense_type(chip, lun, SENSE_TYPE_MG_KEY_FAIL_NOT_AUTHEN);
-		TRACE_GOTO(chip, GetEKBFinish);
+		rtsx_trace(chip);
+		goto GetEKBFinish;
 	}
 
 	retval = ms_transfer_data(chip, MS_TM_AUTO_READ, PRO_READ_LONG_DATA,
@@ -3767,12 +4332,14 @@ int mg_get_local_EKB(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	if (retval != STATUS_SUCCESS) {
 		set_sense_type(chip, lun, SENSE_TYPE_MG_KEY_FAIL_NOT_AUTHEN);
 		rtsx_clear_ms_error(chip);
-		TRACE_GOTO(chip, GetEKBFinish);
+		rtsx_trace(chip);
+		goto GetEKBFinish;
 	}
 	if (check_ms_err(chip)) {
 		set_sense_type(chip, lun, SENSE_TYPE_MG_KEY_FAIL_NOT_AUTHEN);
 		rtsx_clear_ms_error(chip);
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	bufflen = min_t(int, 1052, scsi_bufflen(srb));
@@ -3795,25 +4362,30 @@ int mg_chg(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	ms_cleanup_work(chip);
 
 	retval = ms_switch_clock(chip);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	retval = mg_send_ex_cmd(chip, MG_GET_ID, 0);
 	if (retval != STATUS_SUCCESS) {
 		set_sense_type(chip, lun, SENSE_TYPE_MG_INCOMPATIBLE_MEDIUM);
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	retval = ms_read_bytes(chip, PRO_READ_SHORT_DATA, 32, WAIT_INT,
 			buf, 32);
 	if (retval != STATUS_SUCCESS) {
 		set_sense_type(chip, lun, SENSE_TYPE_MG_INCOMPATIBLE_MEDIUM);
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 	if (check_ms_err(chip)) {
 		set_sense_type(chip, lun, SENSE_TYPE_MG_INCOMPATIBLE_MEDIUM);
 		rtsx_clear_ms_error(chip);
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	memcpy(ms_card->magic_gate_id, buf, 16);
@@ -3822,14 +4394,16 @@ int mg_chg(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	retval = ms_poll_int(chip);
 	if (retval != STATUS_SUCCESS) {
 		set_sense_type(chip, lun, SENSE_TYPE_MG_INCOMPATIBLE_MEDIUM);
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 #endif
 
 	retval = mg_send_ex_cmd(chip, MG_SET_RD, 0);
 	if (retval != STATUS_SUCCESS) {
 		set_sense_type(chip, lun, SENSE_TYPE_MG_INCOMPATIBLE_MEDIUM);
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	bufflen = min_t(int, 12, scsi_bufflen(srb));
@@ -3845,12 +4419,14 @@ int mg_chg(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 				32, WAIT_INT, buf, 32);
 	if (retval != STATUS_SUCCESS) {
 		set_sense_type(chip, lun, SENSE_TYPE_MG_INCOMPATIBLE_MEDIUM);
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 	if (check_ms_err(chip)) {
 		set_sense_type(chip, lun, SENSE_TYPE_MG_INCOMPATIBLE_MEDIUM);
 		rtsx_clear_ms_error(chip);
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	ms_card->mg_auth = 0;
@@ -3869,25 +4445,30 @@ int mg_get_rsp_chg(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	ms_cleanup_work(chip);
 
 	retval = ms_switch_clock(chip);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	retval = mg_send_ex_cmd(chip, MG_MAKE_RMS, 0);
 	if (retval != STATUS_SUCCESS) {
 		set_sense_type(chip, lun, SENSE_TYPE_MG_KEY_FAIL_NOT_AUTHEN);
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	retval = ms_read_bytes(chip, PRO_READ_SHORT_DATA, 32, WAIT_INT,
 			buf1, 32);
 	if (retval != STATUS_SUCCESS) {
 		set_sense_type(chip, lun, SENSE_TYPE_MG_KEY_FAIL_NOT_AUTHEN);
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 	if (check_ms_err(chip)) {
 		set_sense_type(chip, lun, SENSE_TYPE_MG_KEY_FAIL_NOT_AUTHEN);
 		rtsx_clear_ms_error(chip);
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	buf2[0] = 0x00;
@@ -3905,7 +4486,8 @@ int mg_get_rsp_chg(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	retval = ms_poll_int(chip);
 	if (retval != STATUS_SUCCESS) {
 		set_sense_type(chip, lun, SENSE_TYPE_MG_KEY_FAIL_NOT_AUTHEN);
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 #endif
 
@@ -3924,13 +4506,16 @@ int mg_rsp(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	ms_cleanup_work(chip);
 
 	retval = ms_switch_clock(chip);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	retval = mg_send_ex_cmd(chip, MG_MAKE_KSE, 0);
 	if (retval != STATUS_SUCCESS) {
 		set_sense_type(chip, lun, SENSE_TYPE_MG_KEY_FAIL_NOT_AUTHEN);
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	bufflen = min_t(int, 12, scsi_bufflen(srb));
@@ -3946,12 +4531,14 @@ int mg_rsp(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 				buf, 32);
 	if (retval != STATUS_SUCCESS) {
 		set_sense_type(chip, lun, SENSE_TYPE_MG_KEY_FAIL_NOT_AUTHEN);
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 	if (check_ms_err(chip)) {
 		set_sense_type(chip, lun, SENSE_TYPE_MG_KEY_FAIL_NOT_AUTHEN);
 		rtsx_clear_ms_error(chip);
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	ms_card->mg_auth = 1;
@@ -3970,12 +4557,16 @@ int mg_get_ICV(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	ms_cleanup_work(chip);
 
 	retval = ms_switch_clock(chip);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	buf = kmalloc(1028, GFP_KERNEL);
-	if (!buf)
-		TRACE_RET(chip, STATUS_ERROR);
+	if (!buf) {
+		rtsx_trace(chip);
+		return STATUS_ERROR;
+	}
 
 	buf[0] = 0x04;
 	buf[1] = 0x02;
@@ -3985,7 +4576,8 @@ int mg_get_ICV(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	retval = mg_send_ex_cmd(chip, MG_GET_IBD, ms_card->mg_entry_num);
 	if (retval != STATUS_SUCCESS) {
 		set_sense_type(chip, lun, SENSE_TYPE_MEDIA_UNRECOVER_READ_ERR);
-		TRACE_GOTO(chip, GetICVFinish);
+		rtsx_trace(chip);
+		goto GetICVFinish;
 	}
 
 	retval = ms_transfer_data(chip, MS_TM_AUTO_READ, PRO_READ_LONG_DATA,
@@ -3993,12 +4585,14 @@ int mg_get_ICV(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	if (retval != STATUS_SUCCESS) {
 		set_sense_type(chip, lun, SENSE_TYPE_MEDIA_UNRECOVER_READ_ERR);
 		rtsx_clear_ms_error(chip);
-		TRACE_GOTO(chip, GetICVFinish);
+		rtsx_trace(chip);
+		goto GetICVFinish;
 	}
 	if (check_ms_err(chip)) {
 		set_sense_type(chip, lun, SENSE_TYPE_MEDIA_UNRECOVER_READ_ERR);
 		rtsx_clear_ms_error(chip);
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	bufflen = min_t(int, 1028, scsi_bufflen(srb));
@@ -4023,12 +4617,16 @@ int mg_set_ICV(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	ms_cleanup_work(chip);
 
 	retval = ms_switch_clock(chip);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	buf = kmalloc(1028, GFP_KERNEL);
-	if (!buf)
-		TRACE_RET(chip, STATUS_ERROR);
+	if (!buf) {
+		rtsx_trace(chip);
+		return STATUS_ERROR;
+	}
 
 	bufflen = min_t(int, 1028, scsi_bufflen(srb));
 	rtsx_stor_get_xfer_buf(buf, bufflen, srb);
@@ -4045,7 +4643,8 @@ int mg_set_ICV(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 		} else {
 			set_sense_type(chip, lun, SENSE_TYPE_MG_WRITE_ERR);
 		}
-		TRACE_GOTO(chip, SetICVFinish);
+		rtsx_trace(chip);
+		goto SetICVFinish;
 	}
 
 #ifdef MG_SET_ICV_SLOW
@@ -4084,7 +4683,8 @@ int mg_set_ICV(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 					SENSE_TYPE_MG_WRITE_ERR);
 			}
 			retval = STATUS_FAIL;
-			TRACE_GOTO(chip, SetICVFinish);
+			rtsx_trace(chip);
+			goto SetICVFinish;
 		}
 	}
 #else
@@ -4102,7 +4702,8 @@ int mg_set_ICV(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 		} else {
 			set_sense_type(chip, lun, SENSE_TYPE_MG_WRITE_ERR);
 		}
-		TRACE_GOTO(chip, SetICVFinish);
+		rtsx_trace(chip);
+		goto SetICVFinish;
 	}
 #endif
 
@@ -4142,22 +4743,37 @@ int ms_power_off_card3v3(struct rtsx_chip *chip)
 	int retval;
 
 	retval = disable_card_clock(chip, MS_CARD);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	if (chip->asic_code) {
 		retval = ms_pull_ctl_disable(chip);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 	} else {
-		RTSX_WRITE_REG(chip, FPGA_PULL_CTL,
-			FPGA_MS_PULL_CTL_BIT | 0x20, FPGA_MS_PULL_CTL_BIT);
+		retval = rtsx_write_register(chip, FPGA_PULL_CTL,
+					     FPGA_MS_PULL_CTL_BIT | 0x20,
+					     FPGA_MS_PULL_CTL_BIT);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
+	}
+	retval = rtsx_write_register(chip, CARD_OE, MS_OUTPUT_EN, 0);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
 	}
-	RTSX_WRITE_REG(chip, CARD_OE, MS_OUTPUT_EN, 0);
 	if (!chip->ft2_fast_mode) {
 		retval = card_power_off(chip, MS_CARD);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 	}
 
 	return STATUS_SUCCESS;
@@ -4185,8 +4801,10 @@ int release_ms_card(struct rtsx_chip *chip)
 #endif
 
 	retval = ms_power_off_card3v3(chip);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	return STATUS_SUCCESS;
 }
diff --git a/drivers/staging/rts5208/ms.h b/drivers/staging/rts5208/ms.h
index 26c5b03..d919170 100644
--- a/drivers/staging/rts5208/ms.h
+++ b/drivers/staging/rts5208/ms.h
@@ -205,7 +205,7 @@ int reset_ms_card(struct rtsx_chip *chip);
 int ms_rw(struct scsi_cmnd *srb, struct rtsx_chip *chip,
 	u32 start_sector, u16 sector_cnt);
 int mspro_format(struct scsi_cmnd *srb, struct rtsx_chip *chip,
-		int short_data_len, int quick_format);
+		int short_data_len, bool quick_format);
 void ms_free_l2p_tbl(struct rtsx_chip *chip);
 void ms_cleanup_work(struct rtsx_chip *chip);
 int ms_power_off_card3v3(struct rtsx_chip *chip);
diff --git a/drivers/staging/rts5208/rtsx.c b/drivers/staging/rts5208/rtsx.c
index c74f1b8..d64b6ed 100644
--- a/drivers/staging/rts5208/rtsx.c
+++ b/drivers/staging/rts5208/rtsx.c
@@ -26,12 +26,6 @@
 #include <linux/workqueue.h>
 
 #include "rtsx.h"
-#include "rtsx_chip.h"
-#include "rtsx_transport.h"
-#include "rtsx_scsi.h"
-#include "rtsx_card.h"
-#include "general.h"
-
 #include "ms.h"
 #include "sd.h"
 #include "xd.h"
@@ -137,8 +131,8 @@ static int queuecommand_lck(struct scsi_cmnd *srb,
 
 	/* check for state-transition errors */
 	if (chip->srb != NULL) {
-		dev_err(&dev->pci->dev, "Error in %s: chip->srb = %p\n",
-			__func__, chip->srb);
+		dev_err(&dev->pci->dev, "Error: chip->srb = %p\n",
+			chip->srb);
 		return SCSI_MLQUEUE_HOST_BUSY;
 	}
 
@@ -1036,7 +1030,7 @@ static const struct pci_device_id rtsx_ids[] = {
 MODULE_DEVICE_TABLE(pci, rtsx_ids);
 
 /* pci_driver definition */
-static struct pci_driver driver = {
+static struct pci_driver rtsx_driver = {
 	.name = CR_DRIVER_NAME,
 	.id_table = rtsx_ids,
 	.probe = rtsx_probe,
@@ -1048,21 +1042,4 @@ static struct pci_driver driver = {
 	.shutdown = rtsx_shutdown,
 };
 
-static int __init rtsx_init(void)
-{
-	pr_info("Initializing Realtek PCIE storage driver...\n");
-
-	return pci_register_driver(&driver);
-}
-
-static void __exit rtsx_exit(void)
-{
-	pr_info("rtsx_exit() called\n");
-
-	pci_unregister_driver(&driver);
-
-	pr_info("%s module exit\n", CR_DRIVER_NAME);
-}
-
-module_init(rtsx_init)
-module_exit(rtsx_exit)
+module_pci_driver(rtsx_driver);
diff --git a/drivers/staging/rts5208/rtsx.h b/drivers/staging/rts5208/rtsx.h
index 9e6ecb7..262441b 100644
--- a/drivers/staging/rts5208/rtsx.h
+++ b/drivers/staging/rts5208/rtsx.h
@@ -46,9 +46,6 @@
 #include <scsi/scsi_eh.h>
 #include <scsi/scsi_host.h>
 
-#include "trace.h"
-#include "general.h"
-
 #define CR_DRIVER_NAME		"rts5208"
 
 #define pci_get_bus_and_slot(bus, devfn)	\
@@ -181,4 +178,14 @@ enum xfer_buf_dir	{TO_XFER_BUF, FROM_XFER_BUF};
 
 int rtsx_read_pci_cfg_byte(u8 bus, u8 dev, u8 func, u8 offset, u8 *val);
 
+#define _MSG_TRACE
+
+#include "trace.h"
+#include "rtsx_chip.h"
+#include "rtsx_transport.h"
+#include "rtsx_scsi.h"
+#include "rtsx_card.h"
+#include "rtsx_sys.h"
+#include "general.h"
+
 #endif  /* __REALTEK_RTSX_H */
diff --git a/drivers/staging/rts5208/rtsx_card.c b/drivers/staging/rts5208/rtsx_card.c
index b4595ab..437436f 100644
--- a/drivers/staging/rts5208/rtsx_card.c
+++ b/drivers/staging/rts5208/rtsx_card.c
@@ -27,13 +27,6 @@
 #include <linux/kernel.h>
 
 #include "rtsx.h"
-#include "rtsx_transport.h"
-#include "rtsx_scsi.h"
-#include "rtsx_card.h"
-
-#include "rtsx_sys.h"
-#include "general.h"
-
 #include "sd.h"
 #include "xd.h"
 #include "ms.h"
@@ -657,8 +650,10 @@ int switch_ssc_clock(struct rtsx_chip *chip, int clk)
 	dev_dbg(rtsx_dev(chip), "Switch SSC clock to %dMHz (cur_clk = %d)\n",
 		clk, chip->cur_clk);
 
-	if ((clk <= 2) || (N > max_N))
-		TRACE_RET(chip, STATUS_FAIL);
+	if ((clk <= 2) || (N > max_N)) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	mcu_cnt = (u8)(125/clk + 3);
 	if (mcu_cnt > 7)
@@ -697,11 +692,17 @@ int switch_ssc_clock(struct rtsx_chip *chip, int clk)
 	}
 
 	retval = rtsx_send_cmd(chip, 0, WAIT_TIME);
-	if (retval < 0)
-		TRACE_RET(chip, STATUS_ERROR);
+	if (retval < 0) {
+		rtsx_trace(chip);
+		return STATUS_ERROR;
+	}
 
 	udelay(10);
-	RTSX_WRITE_REG(chip, CLK_CTL, CLK_LOW_FREQ, 0);
+	retval = rtsx_write_register(chip, CLK_CTL, CLK_LOW_FREQ, 0);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 
 	chip->cur_clk = clk;
 
@@ -710,6 +711,7 @@ int switch_ssc_clock(struct rtsx_chip *chip, int clk)
 
 int switch_normal_clock(struct rtsx_chip *chip, int clk)
 {
+	int retval;
 	u8 sel, div, mcu_cnt;
 	int sd_vpclk_phase_reset = 0;
 
@@ -790,26 +792,62 @@ int switch_normal_clock(struct rtsx_chip *chip, int clk)
 	default:
 		dev_dbg(rtsx_dev(chip), "Try to switch to an illegal clock (%d)\n",
 			clk);
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
-	RTSX_WRITE_REG(chip, CLK_CTL, 0xFF, CLK_LOW_FREQ);
+	retval = rtsx_write_register(chip, CLK_CTL, 0xFF, CLK_LOW_FREQ);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 	if (sd_vpclk_phase_reset) {
-		RTSX_WRITE_REG(chip, SD_VPCLK0_CTL, PHASE_NOT_RESET, 0);
-		RTSX_WRITE_REG(chip, SD_VPCLK1_CTL, PHASE_NOT_RESET, 0);
+		retval = rtsx_write_register(chip, SD_VPCLK0_CTL,
+					     PHASE_NOT_RESET, 0);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
+		retval = rtsx_write_register(chip, SD_VPCLK1_CTL,
+					     PHASE_NOT_RESET, 0);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
+	}
+	retval = rtsx_write_register(chip, CLK_DIV, 0xFF,
+				     (div << 4) | mcu_cnt);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
+	retval = rtsx_write_register(chip, CLK_SEL, 0xFF, sel);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
 	}
-	RTSX_WRITE_REG(chip, CLK_DIV, 0xFF, (div << 4) | mcu_cnt);
-	RTSX_WRITE_REG(chip, CLK_SEL, 0xFF, sel);
 
 	if (sd_vpclk_phase_reset) {
 		udelay(200);
-		RTSX_WRITE_REG(chip, SD_VPCLK0_CTL, PHASE_NOT_RESET,
-				PHASE_NOT_RESET);
-		RTSX_WRITE_REG(chip, SD_VPCLK1_CTL, PHASE_NOT_RESET,
-				PHASE_NOT_RESET);
+		retval = rtsx_write_register(chip, SD_VPCLK0_CTL,
+					     PHASE_NOT_RESET, PHASE_NOT_RESET);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
+		retval = rtsx_write_register(chip, SD_VPCLK1_CTL,
+					     PHASE_NOT_RESET, PHASE_NOT_RESET);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
 		udelay(200);
 	}
-	RTSX_WRITE_REG(chip, CLK_CTL, 0xFF, 0);
+	retval = rtsx_write_register(chip, CLK_CTL, 0xFF, 0);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 
 	chip->cur_clk = clk;
 
@@ -844,6 +882,7 @@ void trans_dma_enable(enum dma_data_direction dir, struct rtsx_chip *chip,
 
 int enable_card_clock(struct rtsx_chip *chip, u8 card)
 {
+	int retval;
 	u8 clk_en = 0;
 
 	if (card & XD_CARD)
@@ -853,13 +892,18 @@ int enable_card_clock(struct rtsx_chip *chip, u8 card)
 	if (card & MS_CARD)
 		clk_en |= MS_CLK_EN;
 
-	RTSX_WRITE_REG(chip, CARD_CLK_EN, clk_en, clk_en);
+	retval = rtsx_write_register(chip, CARD_CLK_EN, clk_en, clk_en);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 
 	return STATUS_SUCCESS;
 }
 
 int disable_card_clock(struct rtsx_chip *chip, u8 card)
 {
+	int retval;
 	u8 clk_en = 0;
 
 	if (card & XD_CARD)
@@ -869,7 +913,11 @@ int disable_card_clock(struct rtsx_chip *chip, u8 card)
 	if (card & MS_CARD)
 		clk_en |= MS_CLK_EN;
 
-	RTSX_WRITE_REG(chip, CARD_CLK_EN, clk_en, 0);
+	retval = rtsx_write_register(chip, CARD_CLK_EN, clk_en, 0);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 
 	return STATUS_SUCCESS;
 }
@@ -893,8 +941,10 @@ int card_power_on(struct rtsx_chip *chip, u8 card)
 	rtsx_add_cmd(chip, WRITE_REG_CMD, CARD_PWR_CTL, mask, val1);
 
 	retval = rtsx_send_cmd(chip, 0, 100);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	udelay(chip->pmos_pwr_on_interval);
 
@@ -902,14 +952,17 @@ int card_power_on(struct rtsx_chip *chip, u8 card)
 	rtsx_add_cmd(chip, WRITE_REG_CMD, CARD_PWR_CTL, mask, val2);
 
 	retval = rtsx_send_cmd(chip, 0, 100);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	return STATUS_SUCCESS;
 }
 
 int card_power_off(struct rtsx_chip *chip, u8 card)
 {
+	int retval;
 	u8 mask, val;
 
 	if (CHECK_LUN_MODE(chip, SD_MS_2LUN) && (card == MS_CARD)) {
@@ -920,7 +973,11 @@ int card_power_off(struct rtsx_chip *chip, u8 card)
 		val = SD_POWER_OFF;
 	}
 
-	RTSX_WRITE_REG(chip, CARD_PWR_CTL, mask, val);
+	retval = rtsx_write_register(chip, CARD_PWR_CTL, mask, val);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 
 	return STATUS_SUCCESS;
 }
@@ -932,8 +989,10 @@ int card_rw(struct scsi_cmnd *srb, struct rtsx_chip *chip,
 	unsigned int lun = SCSI_LUN(srb);
 	int i;
 
-	if (chip->rw_card[lun] == NULL)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (chip->rw_card[lun] == NULL) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	for (i = 0; i < 3; i++) {
 		chip->rw_need_retry = 0;
@@ -942,11 +1001,14 @@ int card_rw(struct scsi_cmnd *srb, struct rtsx_chip *chip,
 		if (retval != STATUS_SUCCESS) {
 			if (rtsx_check_chip_exist(chip) != STATUS_SUCCESS) {
 				rtsx_release_chip(chip);
-				TRACE_RET(chip, STATUS_FAIL);
+				rtsx_trace(chip);
+				return STATUS_FAIL;
 			}
 			if (detect_card_cd(chip, chip->cur_card) !=
-							STATUS_SUCCESS)
-				TRACE_RET(chip, STATUS_FAIL);
+							STATUS_SUCCESS) {
+				rtsx_trace(chip);
+				return STATUS_FAIL;
+			}
 
 			if (!chip->rw_need_retry) {
 				dev_dbg(rtsx_dev(chip), "RW fail, but no need to retry\n");
@@ -965,6 +1027,7 @@ int card_rw(struct scsi_cmnd *srb, struct rtsx_chip *chip,
 
 int card_share_mode(struct rtsx_chip *chip, int card)
 {
+	int retval;
 	u8 mask, value;
 
 	if (CHECK_PID(chip, 0x5208)) {
@@ -975,8 +1038,10 @@ int card_share_mode(struct rtsx_chip *chip, int card)
 			value = CARD_SHARE_48_MS;
 		else if (card == XD_CARD)
 			value = CARD_SHARE_48_XD;
-		else
-			TRACE_RET(chip, STATUS_FAIL);
+		else {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 
 	} else if (CHECK_PID(chip, 0x5288)) {
 		mask = 0x03;
@@ -986,14 +1051,21 @@ int card_share_mode(struct rtsx_chip *chip, int card)
 			value = CARD_SHARE_BAROSSA_MS;
 		else if (card == XD_CARD)
 			value = CARD_SHARE_BAROSSA_XD;
-		else
-			TRACE_RET(chip, STATUS_FAIL);
+		else {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 
 	} else {
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
-	RTSX_WRITE_REG(chip, CARD_SHARE_MODE, mask, value);
+	retval = rtsx_write_register(chip, CARD_SHARE_MODE, mask, value);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 
 	return STATUS_SUCCESS;
 }
@@ -1014,15 +1086,23 @@ int select_card(struct rtsx_chip *chip, int card)
 			mod = XD_MOD_SEL;
 		else if (card == SPI_CARD)
 			mod = SPI_MOD_SEL;
-		else
-			TRACE_RET(chip, STATUS_FAIL);
+		else {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 
-		RTSX_WRITE_REG(chip, CARD_SELECT, 0x07, mod);
+		retval = rtsx_write_register(chip, CARD_SELECT, 0x07, mod);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
 		chip->cur_card = card;
 
 		retval =  card_share_mode(chip, card);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 	}
 
 	return STATUS_SUCCESS;
@@ -1067,12 +1147,15 @@ int detect_card_cd(struct rtsx_chip *chip, int card)
 		card_cd = XD_EXIST;
 	} else {
 		dev_dbg(rtsx_dev(chip), "Wrong card type: 0x%x\n", card);
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	status = rtsx_readl(chip, RTSX_BIPR);
-	if (!(status & card_cd))
-		TRACE_RET(chip, STATUS_FAIL);
+	if (!(status & card_cd)) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	return STATUS_SUCCESS;
 }
diff --git a/drivers/staging/rts5208/rtsx_card.h b/drivers/staging/rts5208/rtsx_card.h
index 75cf588..8f2cf9a4e 100644
--- a/drivers/staging/rts5208/rtsx_card.h
+++ b/drivers/staging/rts5208/rtsx_card.h
@@ -1061,7 +1061,13 @@ int card_power_off(struct rtsx_chip *chip, u8 card);
 
 static inline int card_power_off_all(struct rtsx_chip *chip)
 {
-	RTSX_WRITE_REG(chip, CARD_PWR_CTL, 0x0F, 0x0F);
+	int retval;
+
+	retval = rtsx_write_register(chip, CARD_PWR_CTL, 0x0F, 0x0F);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 
 	return STATUS_SUCCESS;
 }
diff --git a/drivers/staging/rts5208/rtsx_chip.c b/drivers/staging/rts5208/rtsx_chip.c
index 9593d81..0c1716e 100644
--- a/drivers/staging/rts5208/rtsx_chip.c
+++ b/drivers/staging/rts5208/rtsx_chip.c
@@ -27,13 +27,6 @@
 #include <linux/vmalloc.h>
 
 #include "rtsx.h"
-#include "rtsx_transport.h"
-#include "rtsx_scsi.h"
-#include "rtsx_card.h"
-#include "rtsx_chip.h"
-#include "rtsx_sys.h"
-#include "general.h"
-
 #include "sd.h"
 #include "xd.h"
 #include "ms.h"
@@ -123,22 +116,46 @@ void rtsx_disable_bus_int(struct rtsx_chip *chip)
 
 static int rtsx_pre_handle_sdio_old(struct rtsx_chip *chip)
 {
+	int retval;
+
 	if (chip->ignore_sd && CHK_SDIO_EXIST(chip)) {
 		if (chip->asic_code) {
-			RTSX_WRITE_REG(chip, CARD_PULL_CTL5, 0xFF,
-				       MS_INS_PU | SD_WP_PU |
-				       SD_CD_PU | SD_CMD_PU);
+			retval = rtsx_write_register(chip, CARD_PULL_CTL5,
+						     0xFF,
+						     MS_INS_PU | SD_WP_PU | SD_CD_PU | SD_CMD_PU);
+			if (retval) {
+				rtsx_trace(chip);
+				return retval;
+			}
 		} else {
-			RTSX_WRITE_REG(chip, FPGA_PULL_CTL, 0xFF,
-				       FPGA_SD_PULL_CTL_EN);
+			retval = rtsx_write_register(chip, FPGA_PULL_CTL,
+						     0xFF,
+						     FPGA_SD_PULL_CTL_EN);
+			if (retval) {
+				rtsx_trace(chip);
+				return retval;
+			}
+		}
+		retval = rtsx_write_register(chip, CARD_SHARE_MODE, 0xFF,
+					     CARD_SHARE_48_SD);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
 		}
-		RTSX_WRITE_REG(chip, CARD_SHARE_MODE, 0xFF, CARD_SHARE_48_SD);
 
 		/* Enable SDIO internal clock */
-		RTSX_WRITE_REG(chip, 0xFF2C, 0x01, 0x01);
+		retval = rtsx_write_register(chip, 0xFF2C, 0x01, 0x01);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
 
-		RTSX_WRITE_REG(chip, SDIO_CTRL, 0xFF,
-			       SDIO_BUS_CTRL | SDIO_CD_CTRL);
+		retval = rtsx_write_register(chip, SDIO_CTRL, 0xFF,
+					     SDIO_BUS_CTRL | SDIO_CD_CTRL);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
 
 		chip->sd_int = 1;
 		chip->sd_io = 1;
@@ -153,22 +170,30 @@ static int rtsx_pre_handle_sdio_old(struct rtsx_chip *chip)
 static int rtsx_pre_handle_sdio_new(struct rtsx_chip *chip)
 {
 	u8 tmp;
-	int sw_bypass_sd = 0;
+	bool sw_bypass_sd = false;
 	int retval;
 
 	if (chip->driver_first_load) {
 		if (CHECK_PID(chip, 0x5288)) {
-			RTSX_READ_REG(chip, 0xFE5A, &tmp);
+			retval = rtsx_read_register(chip, 0xFE5A, &tmp);
+			if (retval) {
+				rtsx_trace(chip);
+				return retval;
+			}
 			if (tmp & 0x08)
-				sw_bypass_sd = 1;
+				sw_bypass_sd = true;
 		} else if (CHECK_PID(chip, 0x5208)) {
-			RTSX_READ_REG(chip, 0xFE70, &tmp);
+			retval = rtsx_read_register(chip, 0xFE70, &tmp);
+			if (retval) {
+				rtsx_trace(chip);
+				return retval;
+			}
 			if (tmp & 0x80)
-				sw_bypass_sd = 1;
+				sw_bypass_sd = true;
 		}
 	} else {
 		if (chip->sdio_in_charge)
-			sw_bypass_sd = 1;
+			sw_bypass_sd = true;
 	}
 	dev_dbg(rtsx_dev(chip), "chip->sdio_in_charge = %d\n",
 		chip->sdio_in_charge);
@@ -180,17 +205,37 @@ static int rtsx_pre_handle_sdio_new(struct rtsx_chip *chip)
 	if (sw_bypass_sd) {
 		u8 cd_toggle_mask = 0;
 
-		RTSX_READ_REG(chip, TLPTISTAT, &tmp);
+		retval = rtsx_read_register(chip, TLPTISTAT, &tmp);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
 		cd_toggle_mask = 0x08;
 
 		if (tmp & cd_toggle_mask) {
 			/* Disable sdio_bus_auto_switch */
-			if (CHECK_PID(chip, 0x5288))
-				RTSX_WRITE_REG(chip, 0xFE5A, 0x08, 0x00);
-			else if (CHECK_PID(chip, 0x5208))
-				RTSX_WRITE_REG(chip, 0xFE70, 0x80, 0x00);
+			if (CHECK_PID(chip, 0x5288)) {
+				retval = rtsx_write_register(chip, 0xFE5A,
+							     0x08, 0x00);
+				if (retval) {
+					rtsx_trace(chip);
+					return retval;
+				}
+			} else if (CHECK_PID(chip, 0x5208)) {
+				retval = rtsx_write_register(chip, 0xFE70,
+							     0x80, 0x00);
+				if (retval) {
+					rtsx_trace(chip);
+					return retval;
+				}
+			}
 
-			RTSX_WRITE_REG(chip, TLPTISTAT, 0xFF, tmp);
+			retval = rtsx_write_register(chip, TLPTISTAT, 0xFF,
+						     tmp);
+			if (retval) {
+				rtsx_trace(chip);
+				return retval;
+			}
 
 			chip->need_reset |= SD_CARD;
 		} else {
@@ -198,27 +243,52 @@ static int rtsx_pre_handle_sdio_new(struct rtsx_chip *chip)
 
 			if (chip->asic_code) {
 				retval = sd_pull_ctl_enable(chip);
-				if (retval != STATUS_SUCCESS)
-					TRACE_RET(chip, STATUS_FAIL);
+				if (retval != STATUS_SUCCESS) {
+					rtsx_trace(chip);
+					return STATUS_FAIL;
+				}
 			} else {
-				RTSX_WRITE_REG(chip, FPGA_PULL_CTL,
-					       FPGA_SD_PULL_CTL_BIT | 0x20, 0);
+				retval = rtsx_write_register(chip,
+							     FPGA_PULL_CTL,
+							     FPGA_SD_PULL_CTL_BIT | 0x20,
+							     0);
+				if (retval) {
+					rtsx_trace(chip);
+					return retval;
+				}
 			}
 			retval = card_share_mode(chip, SD_CARD);
-			if (retval != STATUS_SUCCESS)
-				TRACE_RET(chip, STATUS_FAIL);
+			if (retval != STATUS_SUCCESS) {
+				rtsx_trace(chip);
+				return STATUS_FAIL;
+			}
 
 			/* Enable sdio_bus_auto_switch */
-			if (CHECK_PID(chip, 0x5288))
-				RTSX_WRITE_REG(chip, 0xFE5A, 0x08, 0x08);
-			else if (CHECK_PID(chip, 0x5208))
-				RTSX_WRITE_REG(chip, 0xFE70, 0x80, 0x80);
+			if (CHECK_PID(chip, 0x5288)) {
+				retval = rtsx_write_register(chip, 0xFE5A,
+							     0x08, 0x08);
+				if (retval) {
+					rtsx_trace(chip);
+					return retval;
+				}
+			} else if (CHECK_PID(chip, 0x5208)) {
+				retval = rtsx_write_register(chip, 0xFE70,
+							     0x80, 0x80);
+				if (retval) {
+					rtsx_trace(chip);
+					return retval;
+				}
+			}
 
 			chip->chip_insert_with_sdio = 1;
 			chip->sd_io = 1;
 		}
 	} else {
-		RTSX_WRITE_REG(chip, TLPTISTAT, 0x08, 0x08);
+		retval = rtsx_write_register(chip, TLPTISTAT, 0x08, 0x08);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
 
 		chip->need_reset |= SD_CARD;
 	}
@@ -237,25 +307,36 @@ static int rtsx_reset_aspm(struct rtsx_chip *chip)
 
 		ret = rtsx_write_cfg_dw(chip, 2, 0xC0, 0xFF,
 					chip->aspm_l0s_l1_en);
-		if (ret != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (ret != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 
 		return STATUS_SUCCESS;
 	}
 
-	if (CHECK_PID(chip, 0x5208))
-		RTSX_WRITE_REG(chip, ASPM_FORCE_CTL, 0xFF, 0x3F);
+	if (CHECK_PID(chip, 0x5208)) {
+		ret = rtsx_write_register(chip, ASPM_FORCE_CTL, 0xFF, 0x3F);
+		if (ret) {
+			rtsx_trace(chip);
+			return ret;
+		}
+	}
 	ret = rtsx_write_config_byte(chip, LCTLR, chip->aspm_l0s_l1_en);
-	if (ret != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (ret != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	chip->aspm_level[0] = chip->aspm_l0s_l1_en;
 	if (CHK_SDIO_EXIST(chip)) {
 		chip->aspm_level[1] = chip->aspm_l0s_l1_en;
 		ret = rtsx_write_cfg_dw(chip, CHECK_PID(chip, 0x5288) ? 2 : 1,
 					0xC0, 0xFF, chip->aspm_l0s_l1_en);
-		if (ret != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (ret != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 	}
 
 	chip->aspm_enabled = 1;
@@ -273,7 +354,11 @@ static int rtsx_enable_pcie_intr(struct rtsx_chip *chip)
 	}
 
 	if (chip->phy_debug_mode) {
-		RTSX_WRITE_REG(chip, CDRESUMECTL, 0x77, 0);
+		ret = rtsx_write_register(chip, CDRESUMECTL, 0x77, 0);
+		if (ret) {
+			rtsx_trace(chip);
+			return ret;
+		}
 		rtsx_disable_bus_int(chip);
 	} else {
 		rtsx_enable_bus_int(chip);
@@ -283,23 +368,31 @@ static int rtsx_enable_pcie_intr(struct rtsx_chip *chip)
 		u16 reg;
 
 		ret = rtsx_read_phy_register(chip, 0x00, &reg);
-		if (ret != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (ret != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 
 		reg &= 0xFE7F;
 		reg |= 0x80;
 		ret = rtsx_write_phy_register(chip, 0x00, reg);
-		if (ret != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (ret != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 
 		ret = rtsx_read_phy_register(chip, 0x1C, &reg);
-		if (ret != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (ret != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 
 		reg &= 0xFFF7;
 		ret = rtsx_write_phy_register(chip, 0x1C, reg);
-		if (ret != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (ret != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 	}
 
 	if (chip->driver_first_load && (chip->ic_version < IC_VER_C))
@@ -316,47 +409,116 @@ int rtsx_reset_chip(struct rtsx_chip *chip)
 
 	rtsx_disable_aspm(chip);
 
-	RTSX_WRITE_REG(chip, HOST_SLEEP_STATE, 0x03, 0x00);
+	retval = rtsx_write_register(chip, HOST_SLEEP_STATE, 0x03, 0x00);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 
 	/* Disable card clock */
-	RTSX_WRITE_REG(chip, CARD_CLK_EN, 0x1E, 0);
+	retval = rtsx_write_register(chip, CARD_CLK_EN, 0x1E, 0);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 
 #ifdef SUPPORT_OCP
 	/* SSC power on, OCD power on */
-	if (CHECK_LUN_MODE(chip, SD_MS_2LUN))
-		RTSX_WRITE_REG(chip, FPDCTL, OC_POWER_DOWN, 0);
-	else
-		RTSX_WRITE_REG(chip, FPDCTL, OC_POWER_DOWN, MS_OC_POWER_DOWN);
+	if (CHECK_LUN_MODE(chip, SD_MS_2LUN)) {
+		retval = rtsx_write_register(chip, FPDCTL, OC_POWER_DOWN, 0);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
+	} else {
+		retval = rtsx_write_register(chip, FPDCTL, OC_POWER_DOWN,
+					     MS_OC_POWER_DOWN);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
+	}
 
-	RTSX_WRITE_REG(chip, OCPPARA1, OCP_TIME_MASK, OCP_TIME_800);
-	RTSX_WRITE_REG(chip, OCPPARA2, OCP_THD_MASK, OCP_THD_244_946);
-	RTSX_WRITE_REG(chip, OCPCTL, 0xFF, CARD_OC_INT_EN | CARD_DETECT_EN);
+	retval = rtsx_write_register(chip, OCPPARA1, OCP_TIME_MASK,
+				     OCP_TIME_800);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
+	retval = rtsx_write_register(chip, OCPPARA2, OCP_THD_MASK,
+				     OCP_THD_244_946);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
+	retval = rtsx_write_register(chip, OCPCTL, 0xFF,
+				     CARD_OC_INT_EN | CARD_DETECT_EN);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 #else
 	/* OC power down */
-	RTSX_WRITE_REG(chip, FPDCTL, OC_POWER_DOWN, OC_POWER_DOWN);
+	retval = rtsx_write_register(chip, FPDCTL, OC_POWER_DOWN,
+				     OC_POWER_DOWN);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 #endif
 
-	if (!CHECK_PID(chip, 0x5288))
-		RTSX_WRITE_REG(chip, CARD_GPIO_DIR, 0xFF, 0x03);
+	if (!CHECK_PID(chip, 0x5288)) {
+		retval = rtsx_write_register(chip, CARD_GPIO_DIR, 0xFF, 0x03);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
+	}
 
 	/* Turn off LED */
-	RTSX_WRITE_REG(chip, CARD_GPIO, 0xFF, 0x03);
+	retval = rtsx_write_register(chip, CARD_GPIO, 0xFF, 0x03);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 
 	/* Reset delink mode */
-	RTSX_WRITE_REG(chip, CHANGE_LINK_STATE, 0x0A, 0);
+	retval = rtsx_write_register(chip, CHANGE_LINK_STATE, 0x0A, 0);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 
 	/* Card driving select */
-	RTSX_WRITE_REG(chip, CARD_DRIVE_SEL, 0xFF, chip->card_drive_sel);
+	retval = rtsx_write_register(chip, CARD_DRIVE_SEL, 0xFF,
+				     chip->card_drive_sel);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 
 #ifdef LED_AUTO_BLINK
-	RTSX_WRITE_REG(chip, CARD_AUTO_BLINK, 0xFF,
-		       LED_BLINK_SPEED | BLINK_EN | LED_GPIO0);
+	retval = rtsx_write_register(chip, CARD_AUTO_BLINK, 0xFF,
+				     LED_BLINK_SPEED | BLINK_EN | LED_GPIO0);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 #endif
 
 	if (chip->asic_code) {
 		/* Enable SSC Clock */
-		RTSX_WRITE_REG(chip, SSC_CTL1, 0xFF, SSC_8X_EN | SSC_SEL_4M);
-		RTSX_WRITE_REG(chip, SSC_CTL2, 0xFF, 0x12);
+		retval = rtsx_write_register(chip, SSC_CTL1, 0xFF,
+					     SSC_8X_EN | SSC_SEL_4M);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
+		retval = rtsx_write_register(chip, SSC_CTL2, 0xFF, 0x12);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
 	}
 
 	/* Disable cd_pwr_save (u_force_rst_core_en=0, u_cd_rst_core_en=0)
@@ -366,55 +528,84 @@ int rtsx_reset_chip(struct rtsx_chip *chip)
 	      bit[5]    u_mac_phy_rst_n_dbg	rst_value = 1
 	      bit[4]	u_non_sticky_rst_n_dbg	rst_value = 0
 	*/
-	RTSX_WRITE_REG(chip, CHANGE_LINK_STATE, 0x16, 0x10);
+	retval = rtsx_write_register(chip, CHANGE_LINK_STATE, 0x16, 0x10);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 
 	/* Enable ASPM */
 	if (chip->aspm_l0s_l1_en) {
 		retval = rtsx_reset_aspm(chip);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 	} else {
 		if (chip->asic_code && CHECK_PID(chip, 0x5208)) {
 			retval = rtsx_write_phy_register(chip, 0x07, 0x0129);
-			if (retval != STATUS_SUCCESS)
-				TRACE_RET(chip, STATUS_FAIL);
+			if (retval != STATUS_SUCCESS) {
+				rtsx_trace(chip);
+				return STATUS_FAIL;
+			}
 		}
 		retval = rtsx_write_config_byte(chip, LCTLR,
 						chip->aspm_l0s_l1_en);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 	}
 
 	retval = rtsx_write_config_byte(chip, 0x81, 1);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	if (CHK_SDIO_EXIST(chip)) {
 		retval = rtsx_write_cfg_dw(chip,
 					   CHECK_PID(chip, 0x5288) ? 2 : 1,
 					   0xC0, 0xFF00, 0x0100);
 
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 	}
 
 	if (CHECK_PID(chip, 0x5288) && !CHK_SDIO_EXIST(chip)) {
 		retval = rtsx_write_cfg_dw(chip, 2, 0xC0, 0xFFFF, 0x0103);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 
 		retval = rtsx_write_cfg_dw(chip, 2, 0x84, 0xFF, 0x03);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 	}
 
-	RTSX_WRITE_REG(chip, IRQSTAT0, LINK_RDY_INT, LINK_RDY_INT);
+	retval = rtsx_write_register(chip, IRQSTAT0, LINK_RDY_INT,
+				     LINK_RDY_INT);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 
-	RTSX_WRITE_REG(chip, PERST_GLITCH_WIDTH, 0xFF, 0x80);
+	retval = rtsx_write_register(chip, PERST_GLITCH_WIDTH, 0xFF, 0x80);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 
 	retval = rtsx_enable_pcie_intr(chip);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	chip->need_reset = 0;
 
@@ -436,13 +627,19 @@ int rtsx_reset_chip(struct rtsx_chip *chip)
 #else  /* HW_AUTO_SWITCH_SD_BUS */
 		retval = rtsx_pre_handle_sdio_old(chip);
 #endif  /* HW_AUTO_SWITCH_SD_BUS */
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 
 	} else {
 		chip->sd_io = 0;
-		RTSX_WRITE_REG(chip, SDIO_CTRL, SDIO_BUS_CTRL | SDIO_CD_CTRL,
-			       0);
+		retval = rtsx_write_register(chip, SDIO_CTRL,
+					     SDIO_BUS_CTRL | SDIO_CD_CTRL, 0);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
 	}
 
 nextcard:
@@ -450,43 +647,91 @@ nextcard:
 		chip->need_reset |= XD_CARD;
 	if (chip->int_reg & MS_EXIST)
 		chip->need_reset |= MS_CARD;
-	if (chip->int_reg & CARD_EXIST)
-		RTSX_WRITE_REG(chip, SSC_CTL1, SSC_RSTB, SSC_RSTB);
+	if (chip->int_reg & CARD_EXIST) {
+		retval = rtsx_write_register(chip, SSC_CTL1, SSC_RSTB,
+					     SSC_RSTB);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
+	}
 
 	dev_dbg(rtsx_dev(chip), "In %s, chip->need_reset = 0x%x\n", __func__,
 		(unsigned int)(chip->need_reset));
 
-	RTSX_WRITE_REG(chip, RCCTL, 0x01, 0x00);
+	retval = rtsx_write_register(chip, RCCTL, 0x01, 0x00);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 
 	if (CHECK_PID(chip, 0x5208) || CHECK_PID(chip, 0x5288)) {
 		/* Turn off main power when entering S3/S4 state */
-		RTSX_WRITE_REG(chip, MAIN_PWR_OFF_CTL, 0x03, 0x03);
+		retval = rtsx_write_register(chip, MAIN_PWR_OFF_CTL, 0x03,
+					     0x03);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
 	}
 
 	if (chip->remote_wakeup_en && !chip->auto_delink_en) {
-		RTSX_WRITE_REG(chip, WAKE_SEL_CTL, 0x07, 0x07);
-		if (chip->aux_pwr_exist)
-			RTSX_WRITE_REG(chip, PME_FORCE_CTL, 0xFF, 0x33);
+		retval = rtsx_write_register(chip, WAKE_SEL_CTL, 0x07, 0x07);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
+		if (chip->aux_pwr_exist) {
+			retval = rtsx_write_register(chip, PME_FORCE_CTL,
+						     0xFF, 0x33);
+			if (retval) {
+				rtsx_trace(chip);
+				return retval;
+			}
+		}
 	} else {
-		RTSX_WRITE_REG(chip, WAKE_SEL_CTL, 0x07, 0x04);
-		RTSX_WRITE_REG(chip, PME_FORCE_CTL, 0xFF, 0x30);
+		retval = rtsx_write_register(chip, WAKE_SEL_CTL, 0x07, 0x04);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
+		retval = rtsx_write_register(chip, PME_FORCE_CTL, 0xFF, 0x30);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
 	}
 
-	if (CHECK_PID(chip, 0x5208) && (chip->ic_version >= IC_VER_D))
-		RTSX_WRITE_REG(chip, PETXCFG, 0x1C, 0x14);
+	if (CHECK_PID(chip, 0x5208) && (chip->ic_version >= IC_VER_D)) {
+		retval = rtsx_write_register(chip, PETXCFG, 0x1C, 0x14);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
+	}
 
 	if (chip->asic_code && CHECK_PID(chip, 0x5208)) {
 		retval = rtsx_clr_phy_reg_bit(chip, 0x1C, 2);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 	}
 
 	if (chip->ft2_fast_mode) {
-		RTSX_WRITE_REG(chip, CARD_PWR_CTL, 0xFF,
-			       MS_PARTIAL_POWER_ON | SD_PARTIAL_POWER_ON);
+		retval = rtsx_write_register(chip, CARD_PWR_CTL, 0xFF,
+					     MS_PARTIAL_POWER_ON | SD_PARTIAL_POWER_ON);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
 		udelay(chip->pmos_pwr_on_interval);
-		RTSX_WRITE_REG(chip, CARD_PWR_CTL, 0xFF,
-			       MS_POWER_ON | SD_POWER_ON);
+		retval = rtsx_write_register(chip, CARD_PWR_CTL, 0xFF,
+					     MS_POWER_ON | SD_POWER_ON);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
 
 		wait_timeout(200);
 	}
@@ -501,13 +746,14 @@ nextcard:
 
 static inline int check_sd_speed_prior(u32 sd_speed_prior)
 {
-	int i, fake_para = 0;
+	bool fake_para = false;
+	int i;
 
 	for (i = 0; i < 4; i++) {
 		u8 tmp = (u8)(sd_speed_prior >> (i*8));
 
 		if ((tmp < 0x01) || (tmp > 0x04)) {
-			fake_para = 1;
+			fake_para = true;
 			break;
 		}
 	}
@@ -517,13 +763,14 @@ static inline int check_sd_speed_prior(u32 sd_speed_prior)
 
 static inline int check_sd_current_prior(u32 sd_current_prior)
 {
-	int i, fake_para = 0;
+	bool fake_para = false;
+	int i;
 
 	for (i = 0; i < 4; i++) {
 		u8 tmp = (u8)(sd_current_prior >> (i*8));
 
 		if (tmp > 0x03) {
-			fake_para = 1;
+			fake_para = true;
 			break;
 		}
 	}
@@ -537,14 +784,24 @@ static int rts5208_init(struct rtsx_chip *chip)
 	u16 reg = 0;
 	u8 val = 0;
 
-	RTSX_WRITE_REG(chip, CLK_SEL, 0x03, 0x03);
-	RTSX_READ_REG(chip, CLK_SEL, &val);
+	retval = rtsx_write_register(chip, CLK_SEL, 0x03, 0x03);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
+	retval = rtsx_read_register(chip, CLK_SEL, &val);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 	chip->asic_code = val == 0 ? 1 : 0;
 
 	if (chip->asic_code) {
 		retval = rtsx_read_phy_register(chip, 0x1C, &reg);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 
 		dev_dbg(rtsx_dev(chip), "Value of phy register 0x1C is 0x%x\n",
 			reg);
@@ -552,16 +809,28 @@ static int rts5208_init(struct rtsx_chip *chip)
 		chip->phy_debug_mode = reg & PHY_DEBUG_MODE ? 1 : 0;
 
 	} else {
-		RTSX_READ_REG(chip, 0xFE80, &val);
+		retval = rtsx_read_register(chip, 0xFE80, &val);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
 		chip->ic_version = val;
 		chip->phy_debug_mode = 0;
 	}
 
-	RTSX_READ_REG(chip, PDINFO, &val);
+	retval = rtsx_read_register(chip, PDINFO, &val);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 	dev_dbg(rtsx_dev(chip), "PDINFO: 0x%x\n", val);
 	chip->aux_pwr_exist = val & AUX_PWR_DETECTED ? 1 : 0;
 
-	RTSX_READ_REG(chip, 0xFE50, &val);
+	retval = rtsx_read_register(chip, 0xFE50, &val);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 	chip->hw_bypass_sd = val & 0x01 ? 1 : 0;
 
 	rtsx_read_config_byte(chip, 0x0E, &val);
@@ -571,7 +840,11 @@ static int rts5208_init(struct rtsx_chip *chip)
 		CLR_SDIO_EXIST(chip);
 
 	if (chip->use_hw_setting) {
-		RTSX_READ_REG(chip, CHANGE_LINK_STATE, &val);
+		retval = rtsx_read_register(chip, CHANGE_LINK_STATE, &val);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
 		chip->auto_delink_en = val & 0x80 ? 1 : 0;
 	}
 
@@ -584,27 +857,49 @@ static int rts5288_init(struct rtsx_chip *chip)
 	u8 val = 0, max_func;
 	u32 lval = 0;
 
-	RTSX_WRITE_REG(chip, CLK_SEL, 0x03, 0x03);
-	RTSX_READ_REG(chip, CLK_SEL, &val);
+	retval = rtsx_write_register(chip, CLK_SEL, 0x03, 0x03);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
+	retval = rtsx_read_register(chip, CLK_SEL, &val);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 	chip->asic_code = val == 0 ? 1 : 0;
 
 	chip->ic_version = 0;
 	chip->phy_debug_mode = 0;
 
-	RTSX_READ_REG(chip, PDINFO, &val);
+	retval = rtsx_read_register(chip, PDINFO, &val);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 	dev_dbg(rtsx_dev(chip), "PDINFO: 0x%x\n", val);
 	chip->aux_pwr_exist = val & AUX_PWR_DETECTED ? 1 : 0;
 
-	RTSX_READ_REG(chip, CARD_SHARE_MODE, &val);
+	retval = rtsx_read_register(chip, CARD_SHARE_MODE, &val);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 	dev_dbg(rtsx_dev(chip), "CARD_SHARE_MODE: 0x%x\n", val);
 	chip->baro_pkg = val & 0x04 ? QFN : LQFP;
 
-	RTSX_READ_REG(chip, 0xFE5A, &val);
+	retval = rtsx_read_register(chip, 0xFE5A, &val);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 	chip->hw_bypass_sd = val & 0x10 ? 1 : 0;
 
 	retval = rtsx_read_cfg_dw(chip, 0, 0x718, &lval);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	max_func = (u8)((lval >> 29) & 0x07);
 	dev_dbg(rtsx_dev(chip), "Max function number: %d\n", max_func);
@@ -614,7 +909,11 @@ static int rts5288_init(struct rtsx_chip *chip)
 		CLR_SDIO_EXIST(chip);
 
 	if (chip->use_hw_setting) {
-		RTSX_READ_REG(chip, CHANGE_LINK_STATE, &val);
+		retval = rtsx_read_register(chip, CHANGE_LINK_STATE, &val);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
 		chip->auto_delink_en = val & 0x80 ? 1 : 0;
 
 		if (CHECK_BARO_PKG(chip, LQFP))
@@ -693,21 +992,33 @@ int rtsx_init_chip(struct rtsx_chip *chip)
 	if ((chip->mmc_ddr_tx_phase > 31) || (chip->mmc_ddr_tx_phase < 0))
 		chip->mmc_ddr_tx_phase = 0;
 
-	RTSX_WRITE_REG(chip, FPDCTL, SSC_POWER_DOWN, 0);
+	retval = rtsx_write_register(chip, FPDCTL, SSC_POWER_DOWN, 0);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 	wait_timeout(200);
-	RTSX_WRITE_REG(chip, CLK_DIV, 0x07, 0x07);
+	retval = rtsx_write_register(chip, CLK_DIV, 0x07, 0x07);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 	dev_dbg(rtsx_dev(chip), "chip->use_hw_setting = %d\n",
 		chip->use_hw_setting);
 
 	if (CHECK_PID(chip, 0x5208)) {
 		retval = rts5208_init(chip);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 
 	} else if (CHECK_PID(chip, 0x5288)) {
 		retval = rts5288_init(chip);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 	}
 
 	if (chip->ss_en == 2)
@@ -754,8 +1065,10 @@ int rtsx_init_chip(struct rtsx_chip *chip)
 	}
 
 	retval = rtsx_reset_chip(chip);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	return STATUS_SUCCESS;
 }
@@ -784,31 +1097,31 @@ static inline void rtsx_blink_led(struct rtsx_chip *chip)
 
 static void rtsx_monitor_aspm_config(struct rtsx_chip *chip)
 {
-	int maybe_support_aspm, reg_changed;
+	bool reg_changed, maybe_support_aspm;
 	u32 tmp = 0;
 	u8 reg0 = 0, reg1 = 0;
 
-	maybe_support_aspm = 0;
-	reg_changed = 0;
+	maybe_support_aspm = false;
+	reg_changed = false;
 	rtsx_read_config_byte(chip, LCTLR, &reg0);
 	if (chip->aspm_level[0] != reg0) {
-		reg_changed = 1;
+		reg_changed = true;
 		chip->aspm_level[0] = reg0;
 	}
 	if (CHK_SDIO_EXIST(chip) && !CHK_SDIO_IGNORED(chip)) {
 		rtsx_read_cfg_dw(chip, 1, 0xC0, &tmp);
 		reg1 = (u8)tmp;
 		if (chip->aspm_level[1] != reg1) {
-			reg_changed = 1;
+			reg_changed = true;
 			chip->aspm_level[1] = reg1;
 		}
 
 		if ((reg0 & 0x03) && (reg1 & 0x03))
-			maybe_support_aspm = 1;
+			maybe_support_aspm = true;
 
 	} else {
 		if (reg0 & 0x03)
-			maybe_support_aspm = 1;
+			maybe_support_aspm = true;
 	}
 
 	if (reg_changed) {
@@ -835,7 +1148,7 @@ void rtsx_polling_func(struct rtsx_chip *chip)
 #ifdef SUPPORT_SD_LOCK
 	struct sd_info *sd_card = &chip->sd_card;
 #endif
-	int ss_allowed;
+	bool ss_allowed;
 
 	if (rtsx_chk_stat(chip, RTSX_STAT_SUSPEND))
 		return;
@@ -887,21 +1200,21 @@ void rtsx_polling_func(struct rtsx_chip *chip)
 	rtsx_init_cards(chip);
 
 	if (chip->ss_en) {
-		ss_allowed = 1;
+		ss_allowed = true;
 
 		if (CHECK_PID(chip, 0x5288)) {
-			ss_allowed = 0;
+			ss_allowed = false;
 		} else {
 			if (CHK_SDIO_EXIST(chip) && !CHK_SDIO_IGNORED(chip)) {
 				u32 val;
 
 				rtsx_read_cfg_dw(chip, 1, 0x04, &val);
 				if (val & 0x07)
-					ss_allowed = 0;
+					ss_allowed = false;
 			}
 		}
 	} else {
-		ss_allowed = 0;
+		ss_allowed = false;
 	}
 
 	if (ss_allowed && !chip->sd_io) {
@@ -1153,14 +1466,17 @@ int rtsx_write_register(struct rtsx_chip *chip, u16 addr, u8 mask, u8 data)
 	for (i = 0; i < MAX_RW_REG_CNT; i++) {
 		val = rtsx_readl(chip, RTSX_HAIMR);
 		if ((val & (1 << 31)) == 0) {
-			if (data != (u8)val)
-				TRACE_RET(chip, STATUS_FAIL);
+			if (data != (u8)val) {
+				rtsx_trace(chip);
+				return STATUS_FAIL;
+			}
 
 			return STATUS_SUCCESS;
 		}
 	}
 
-	TRACE_RET(chip, STATUS_TIMEDOUT);
+	rtsx_trace(chip);
+	return STATUS_TIMEDOUT;
 }
 
 int rtsx_read_register(struct rtsx_chip *chip, u16 addr, u8 *data)
@@ -1181,8 +1497,10 @@ int rtsx_read_register(struct rtsx_chip *chip, u16 addr, u8 *data)
 			break;
 	}
 
-	if (i >= MAX_RW_REG_CNT)
-		TRACE_RET(chip, STATUS_TIMEDOUT);
+	if (i >= MAX_RW_REG_CNT) {
+		rtsx_trace(chip);
+		return STATUS_TIMEDOUT;
+	}
 
 	if (data)
 		*data = (u8)(val & 0xFF);
@@ -1193,13 +1511,19 @@ int rtsx_read_register(struct rtsx_chip *chip, u16 addr, u8 *data)
 int rtsx_write_cfg_dw(struct rtsx_chip *chip, u8 func_no, u16 addr, u32 mask,
 		      u32 val)
 {
+	int retval;
 	u8 mode = 0, tmp;
 	int i;
 
 	for (i = 0; i < 4; i++) {
 		if (mask & 0xFF) {
-			RTSX_WRITE_REG(chip, CFGDATA0 + i,
-				       0xFF, (u8)(val & mask & 0xFF));
+			retval = rtsx_write_register(chip, CFGDATA0 + i,
+						     0xFF,
+						     (u8)(val & mask & 0xFF));
+			if (retval) {
+				rtsx_trace(chip);
+				return retval;
+			}
 			mode |= (1 << i);
 		}
 		mask >>= 8;
@@ -1207,14 +1531,31 @@ int rtsx_write_cfg_dw(struct rtsx_chip *chip, u8 func_no, u16 addr, u32 mask,
 	}
 
 	if (mode) {
-		RTSX_WRITE_REG(chip, CFGADDR0, 0xFF, (u8)addr);
-		RTSX_WRITE_REG(chip, CFGADDR1, 0xFF, (u8)(addr >> 8));
+		retval = rtsx_write_register(chip, CFGADDR0, 0xFF, (u8)addr);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
+		retval = rtsx_write_register(chip, CFGADDR1, 0xFF,
+					     (u8)(addr >> 8));
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
 
-		RTSX_WRITE_REG(chip, CFGRWCTL, 0xFF,
-			       0x80 | mode | ((func_no & 0x03) << 4));
+		retval = rtsx_write_register(chip, CFGRWCTL, 0xFF,
+					     0x80 | mode | ((func_no & 0x03) << 4));
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
 
 		for (i = 0; i < MAX_RW_REG_CNT; i++) {
-			RTSX_READ_REG(chip, CFGRWCTL, &tmp);
+			retval = rtsx_read_register(chip, CFGRWCTL, &tmp);
+			if (retval) {
+				rtsx_trace(chip);
+				return retval;
+			}
 			if ((tmp & 0x80) == 0)
 				break;
 		}
@@ -1225,22 +1566,44 @@ int rtsx_write_cfg_dw(struct rtsx_chip *chip, u8 func_no, u16 addr, u32 mask,
 
 int rtsx_read_cfg_dw(struct rtsx_chip *chip, u8 func_no, u16 addr, u32 *val)
 {
+	int retval;
 	int i;
 	u8 tmp;
 	u32 data = 0;
 
-	RTSX_WRITE_REG(chip, CFGADDR0, 0xFF, (u8)addr);
-	RTSX_WRITE_REG(chip, CFGADDR1, 0xFF, (u8)(addr >> 8));
-	RTSX_WRITE_REG(chip, CFGRWCTL, 0xFF, 0x80 | ((func_no & 0x03) << 4));
+	retval = rtsx_write_register(chip, CFGADDR0, 0xFF, (u8)addr);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
+	retval = rtsx_write_register(chip, CFGADDR1, 0xFF, (u8)(addr >> 8));
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
+	retval = rtsx_write_register(chip, CFGRWCTL, 0xFF,
+				     0x80 | ((func_no & 0x03) << 4));
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 
 	for (i = 0; i < MAX_RW_REG_CNT; i++) {
-		RTSX_READ_REG(chip, CFGRWCTL, &tmp);
+		retval = rtsx_read_register(chip, CFGRWCTL, &tmp);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
 		if ((tmp & 0x80) == 0)
 			break;
 	}
 
 	for (i = 0; i < 4; i++) {
-		RTSX_READ_REG(chip, CFGDATA0 + i, &tmp);
+		retval = rtsx_read_register(chip, CFGDATA0 + i, &tmp);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
 		data |= (u32)tmp << (i * 8);
 	}
 
@@ -1259,8 +1622,10 @@ int rtsx_write_cfg_seq(struct rtsx_chip *chip, u8 func, u16 addr, u8 *buf,
 	int dw_len, i, j;
 	int retval;
 
-	if (!buf)
-		TRACE_RET(chip, STATUS_NOMEM);
+	if (!buf) {
+		rtsx_trace(chip);
+		return STATUS_NOMEM;
+	}
 
 	if ((len + offset) % 4)
 		dw_len = (len + offset) / 4 + 1;
@@ -1270,13 +1635,16 @@ int rtsx_write_cfg_seq(struct rtsx_chip *chip, u8 func, u16 addr, u8 *buf,
 	dev_dbg(rtsx_dev(chip), "dw_len = %d\n", dw_len);
 
 	data = vzalloc(dw_len * 4);
-	if (!data)
-		TRACE_RET(chip, STATUS_NOMEM);
+	if (!data) {
+		rtsx_trace(chip);
+		return STATUS_NOMEM;
+	}
 
 	mask = vzalloc(dw_len * 4);
 	if (!mask) {
 		vfree(data);
-		TRACE_RET(chip, STATUS_NOMEM);
+		rtsx_trace(chip);
+		return STATUS_NOMEM;
 	}
 
 	j = 0;
@@ -1300,7 +1668,8 @@ int rtsx_write_cfg_seq(struct rtsx_chip *chip, u8 func, u16 addr, u8 *buf,
 		if (retval != STATUS_SUCCESS) {
 			vfree(data);
 			vfree(mask);
-			TRACE_RET(chip, STATUS_FAIL);
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		}
 	}
 
@@ -1327,15 +1696,18 @@ int rtsx_read_cfg_seq(struct rtsx_chip *chip, u8 func, u16 addr, u8 *buf,
 	dev_dbg(rtsx_dev(chip), "dw_len = %d\n", dw_len);
 
 	data = vmalloc(dw_len * 4);
-	if (!data)
-		TRACE_RET(chip, STATUS_NOMEM);
+	if (!data) {
+		rtsx_trace(chip);
+		return STATUS_NOMEM;
+	}
 
 	for (i = 0; i < dw_len; i++) {
 		retval = rtsx_read_cfg_dw(chip, func, aligned_addr + i * 4,
 					  data + i);
 		if (retval != STATUS_SUCCESS) {
 			vfree(data);
-			TRACE_RET(chip, STATUS_FAIL);
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		}
 	}
 
@@ -1358,51 +1730,99 @@ int rtsx_read_cfg_seq(struct rtsx_chip *chip, u8 func, u16 addr, u8 *buf,
 
 int rtsx_write_phy_register(struct rtsx_chip *chip, u8 addr, u16 val)
 {
-	int i, finished = 0;
+	int retval;
+	bool finished = false;
+	int i;
 	u8 tmp;
 
-	RTSX_WRITE_REG(chip, PHYDATA0, 0xFF, (u8)val);
-	RTSX_WRITE_REG(chip, PHYDATA1, 0xFF, (u8)(val >> 8));
-	RTSX_WRITE_REG(chip, PHYADDR, 0xFF, addr);
-	RTSX_WRITE_REG(chip, PHYRWCTL, 0xFF, 0x81);
+	retval = rtsx_write_register(chip, PHYDATA0, 0xFF, (u8)val);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
+	retval = rtsx_write_register(chip, PHYDATA1, 0xFF, (u8)(val >> 8));
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
+	retval = rtsx_write_register(chip, PHYADDR, 0xFF, addr);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
+	retval = rtsx_write_register(chip, PHYRWCTL, 0xFF, 0x81);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 
 	for (i = 0; i < 100000; i++) {
-		RTSX_READ_REG(chip, PHYRWCTL, &tmp);
+		retval = rtsx_read_register(chip, PHYRWCTL, &tmp);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
 		if (!(tmp & 0x80)) {
-			finished = 1;
+			finished = true;
 			break;
 		}
 	}
 
-	if (!finished)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (!finished) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	return STATUS_SUCCESS;
 }
 
 int rtsx_read_phy_register(struct rtsx_chip *chip, u8 addr, u16 *val)
 {
-	int i, finished = 0;
+	int retval;
+	bool finished = false;
+	int i;
 	u16 data = 0;
 	u8 tmp;
 
-	RTSX_WRITE_REG(chip, PHYADDR, 0xFF, addr);
-	RTSX_WRITE_REG(chip, PHYRWCTL, 0xFF, 0x80);
+	retval = rtsx_write_register(chip, PHYADDR, 0xFF, addr);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
+	retval = rtsx_write_register(chip, PHYRWCTL, 0xFF, 0x80);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 
 	for (i = 0; i < 100000; i++) {
-		RTSX_READ_REG(chip, PHYRWCTL, &tmp);
+		retval = rtsx_read_register(chip, PHYRWCTL, &tmp);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
 		if (!(tmp & 0x80)) {
-			finished = 1;
+			finished = true;
 			break;
 		}
 	}
 
-	if (!finished)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (!finished) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
-	RTSX_READ_REG(chip, PHYDATA0, &tmp);
+	retval = rtsx_read_register(chip, PHYDATA0, &tmp);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 	data = tmp;
-	RTSX_READ_REG(chip, PHYDATA1, &tmp);
+	retval = rtsx_read_register(chip, PHYDATA1, &tmp);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 	data |= (u16)tmp << 8;
 
 	if (val)
@@ -1413,22 +1833,37 @@ int rtsx_read_phy_register(struct rtsx_chip *chip, u8 addr, u16 *val)
 
 int rtsx_read_efuse(struct rtsx_chip *chip, u8 addr, u8 *val)
 {
+	int retval;
 	int i;
 	u8 data = 0;
 
-	RTSX_WRITE_REG(chip, EFUSE_CTRL, 0xFF, 0x80|addr);
+	retval = rtsx_write_register(chip, EFUSE_CTRL, 0xFF, 0x80 | addr);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 
 	for (i = 0; i < 100; i++) {
-		RTSX_READ_REG(chip, EFUSE_CTRL, &data);
+		retval = rtsx_read_register(chip, EFUSE_CTRL, &data);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
 		if (!(data & 0x80))
 			break;
 		udelay(1);
 	}
 
-	if (data & 0x80)
-		TRACE_RET(chip, STATUS_TIMEDOUT);
+	if (data & 0x80) {
+		rtsx_trace(chip);
+		return STATUS_TIMEDOUT;
+	}
 
-	RTSX_READ_REG(chip, EFUSE_DATA, &data);
+	retval = rtsx_read_register(chip, EFUSE_DATA, &data);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 	if (val)
 		*val = data;
 
@@ -1437,6 +1872,7 @@ int rtsx_read_efuse(struct rtsx_chip *chip, u8 addr, u8 *val)
 
 int rtsx_write_efuse(struct rtsx_chip *chip, u8 addr, u8 val)
 {
+	int retval;
 	int i, j;
 	u8 data = 0, tmp = 0xFF;
 
@@ -1447,18 +1883,33 @@ int rtsx_write_efuse(struct rtsx_chip *chip, u8 addr, u8 val)
 		tmp &= (~(u8)(1 << i));
 		dev_dbg(rtsx_dev(chip), "Write 0x%x to 0x%x\n", tmp, addr);
 
-		RTSX_WRITE_REG(chip, EFUSE_DATA, 0xFF, tmp);
-		RTSX_WRITE_REG(chip, EFUSE_CTRL, 0xFF, 0xA0|addr);
+		retval = rtsx_write_register(chip, EFUSE_DATA, 0xFF, tmp);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
+		retval = rtsx_write_register(chip, EFUSE_CTRL, 0xFF,
+					     0xA0 | addr);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
 
 		for (j = 0; j < 100; j++) {
-			RTSX_READ_REG(chip, EFUSE_CTRL, &data);
+			retval = rtsx_read_register(chip, EFUSE_CTRL, &data);
+			if (retval) {
+				rtsx_trace(chip);
+				return retval;
+			}
 			if (!(data & 0x80))
 				break;
 			wait_timeout(3);
 		}
 
-		if (data & 0x80)
-			TRACE_RET(chip, STATUS_TIMEDOUT);
+		if (data & 0x80) {
+			rtsx_trace(chip);
+			return STATUS_TIMEDOUT;
+		}
 
 		wait_timeout(5);
 	}
@@ -1472,14 +1923,18 @@ int rtsx_clr_phy_reg_bit(struct rtsx_chip *chip, u8 reg, u8 bit)
 	u16 value;
 
 	retval = rtsx_read_phy_register(chip, reg, &value);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	if (value & (1 << bit)) {
 		value &= ~(1 << bit);
 		retval = rtsx_write_phy_register(chip, reg, value);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 	}
 
 	return STATUS_SUCCESS;
@@ -1491,14 +1946,18 @@ int rtsx_set_phy_reg_bit(struct rtsx_chip *chip, u8 reg, u8 bit)
 	u16 value;
 
 	retval = rtsx_read_phy_register(chip, reg, &value);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	if ((value & (1 << bit)) == 0) {
 		value |= (1 << bit);
 		retval = rtsx_write_phy_register(chip, reg, value);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 	}
 
 	return STATUS_SUCCESS;
@@ -1506,9 +1965,14 @@ int rtsx_set_phy_reg_bit(struct rtsx_chip *chip, u8 reg, u8 bit)
 
 int rtsx_check_link_ready(struct rtsx_chip *chip)
 {
+	int retval;
 	u8 val;
 
-	RTSX_READ_REG(chip, IRQSTAT0, &val);
+	retval = rtsx_read_register(chip, IRQSTAT0, &val);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 
 	dev_dbg(rtsx_dev(chip), "IRQSTAT0: 0x%x\n", val);
 	if (val & LINK_RDY_INT) {
@@ -1615,7 +2079,7 @@ void rtsx_exit_ss(struct rtsx_chip *chip)
 int rtsx_pre_handle_interrupt(struct rtsx_chip *chip)
 {
 	u32 status, int_enable;
-	int exit_ss = 0;
+	bool exit_ss = false;
 #ifdef SUPPORT_OCP
 	u32 ocp_int = 0;
 
@@ -1625,7 +2089,7 @@ int rtsx_pre_handle_interrupt(struct rtsx_chip *chip)
 	if (chip->ss_en) {
 		chip->ss_counter = 0;
 		if (rtsx_get_stat(chip) == RTSX_STAT_SS) {
-			exit_ss = 1;
+			exit_ss = true;
 			rtsx_exit_L1(chip);
 			rtsx_set_stat(chip, RTSX_STAT_RUN);
 		}
@@ -1814,8 +2278,10 @@ int rtsx_read_ppbuf(struct rtsx_chip *chip, u8 *buf, int buf_len)
 	u16 reg_addr;
 	u8 *ptr;
 
-	if (!buf)
-		TRACE_RET(chip, STATUS_ERROR);
+	if (!buf) {
+		rtsx_trace(chip);
+		return STATUS_ERROR;
+	}
 
 	ptr = buf;
 	reg_addr = PPBUF_BASE2;
@@ -1826,8 +2292,10 @@ int rtsx_read_ppbuf(struct rtsx_chip *chip, u8 *buf, int buf_len)
 			rtsx_add_cmd(chip, READ_REG_CMD, reg_addr++, 0, 0);
 
 		retval = rtsx_send_cmd(chip, 0, 250);
-		if (retval < 0)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval < 0) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 
 		memcpy(ptr, rtsx_get_cmd_data(chip), 256);
 		ptr += 256;
@@ -1840,8 +2308,10 @@ int rtsx_read_ppbuf(struct rtsx_chip *chip, u8 *buf, int buf_len)
 			rtsx_add_cmd(chip, READ_REG_CMD, reg_addr++, 0, 0);
 
 		retval = rtsx_send_cmd(chip, 0, 250);
-		if (retval < 0)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval < 0) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 	}
 
 	memcpy(ptr, rtsx_get_cmd_data(chip), buf_len%256);
@@ -1856,8 +2326,10 @@ int rtsx_write_ppbuf(struct rtsx_chip *chip, u8 *buf, int buf_len)
 	u16 reg_addr;
 	u8 *ptr;
 
-	if (!buf)
-		TRACE_RET(chip, STATUS_ERROR);
+	if (!buf) {
+		rtsx_trace(chip);
+		return STATUS_ERROR;
+	}
 
 	ptr = buf;
 	reg_addr = PPBUF_BASE2;
@@ -1871,8 +2343,10 @@ int rtsx_write_ppbuf(struct rtsx_chip *chip, u8 *buf, int buf_len)
 		}
 
 		retval = rtsx_send_cmd(chip, 0, 250);
-		if (retval < 0)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval < 0) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 	}
 
 	if (buf_len%256) {
@@ -1885,8 +2359,10 @@ int rtsx_write_ppbuf(struct rtsx_chip *chip, u8 *buf, int buf_len)
 		}
 
 		retval = rtsx_send_cmd(chip, 0, 250);
-		if (retval < 0)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval < 0) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 	}
 
 	return STATUS_SUCCESS;
@@ -1894,8 +2370,10 @@ int rtsx_write_ppbuf(struct rtsx_chip *chip, u8 *buf, int buf_len)
 
 int rtsx_check_chip_exist(struct rtsx_chip *chip)
 {
-	if (rtsx_readl(chip, 0) == 0xFFFFFFFF)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (rtsx_readl(chip, 0) == 0xFFFFFFFF) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	return STATUS_SUCCESS;
 }
@@ -1918,8 +2396,10 @@ int rtsx_force_power_on(struct rtsx_chip *chip, u8 ctl)
 
 	if (mask) {
 		retval = rtsx_write_register(chip, FPDCTL, mask, 0);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 
 		if (CHECK_PID(chip, 0x5288))
 			wait_timeout(200);
@@ -1947,8 +2427,10 @@ int rtsx_force_power_down(struct rtsx_chip *chip, u8 ctl)
 	if (mask) {
 		val = mask;
 		retval = rtsx_write_register(chip, FPDCTL, mask, val);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 	}
 
 	return STATUS_SUCCESS;
diff --git a/drivers/staging/rts5208/rtsx_chip.h b/drivers/staging/rts5208/rtsx_chip.h
index feac986..c295b1e 100644
--- a/drivers/staging/rts5208/rtsx_chip.h
+++ b/drivers/staging/rts5208/rtsx_chip.h
@@ -988,20 +988,4 @@ int rtsx_read_ppbuf(struct rtsx_chip *chip, u8 *buf, int buf_len);
 int rtsx_write_ppbuf(struct rtsx_chip *chip, u8 *buf, int buf_len);
 int rtsx_check_chip_exist(struct rtsx_chip *chip);
 
-#define RTSX_WRITE_REG(chip, addr, mask, data)				\
-	do {								\
-		int retval = rtsx_write_register((chip), (addr), (mask), (data)); \
-		if (retval != STATUS_SUCCESS) {				\
-			TRACE_RET((chip), retval);			\
-		}							\
-	} while (0)
-
-#define RTSX_READ_REG(chip, addr, data)					\
-	do {								\
-		int retval = rtsx_read_register((chip), (addr), (data)); \
-		if (retval != STATUS_SUCCESS) {				\
-			TRACE_RET((chip), retval);			\
-		}							\
-	} while (0)
-
 #endif  /* __REALTEK_RTSX_CHIP_H */
diff --git a/drivers/staging/rts5208/rtsx_scsi.c b/drivers/staging/rts5208/rtsx_scsi.c
index 1161082..8a5d6a8 100644
--- a/drivers/staging/rts5208/rtsx_scsi.c
+++ b/drivers/staging/rts5208/rtsx_scsi.c
@@ -26,11 +26,6 @@
 #include <linux/vmalloc.h>
 
 #include "rtsx.h"
-#include "rtsx_transport.h"
-#include "rtsx_sys.h"
-#include "rtsx_card.h"
-#include "rtsx_chip.h"
-#include "rtsx_scsi.h"
 #include "sd.h"
 #include "ms.h"
 #include "spi.h"
@@ -39,7 +34,8 @@ void scsi_show_command(struct rtsx_chip *chip)
 {
 	struct scsi_cmnd *srb = chip->srb;
 	char *what = NULL;
-	int unknown_cmd = 0, len;
+	bool unknown_cmd = false;
+	int len;
 
 	switch (srb->cmnd[0]) {
 	case TEST_UNIT_READY:
@@ -310,7 +306,8 @@ void scsi_show_command(struct rtsx_chip *chip)
 		what = "Realtek's vendor command";
 		break;
 	default:
-		what = "(unknown command)"; unknown_cmd = 1;
+		what = "(unknown command)";
+		unknown_cmd = true;
 		break;
 	}
 
@@ -485,7 +482,7 @@ static int inquiry(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	unsigned char sendbytes;
 	unsigned char *buf;
 	u8 card = get_lun_card(chip, lun);
-	int pro_formatter_flag = 0;
+	bool pro_formatter_flag = false;
 	unsigned char inquiry_buf[] = {
 		QULIFIRE|DRCT_ACCESS_DEV,
 		RMB_DISC|0x0D,
@@ -510,8 +507,10 @@ static int inquiry(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	}
 
 	buf = vmalloc(scsi_bufflen(srb));
-	if (buf == NULL)
-		TRACE_RET(chip, TRANSPORT_ERROR);
+	if (buf == NULL) {
+		rtsx_trace(chip);
+		return TRANSPORT_ERROR;
+	}
 
 #ifdef SUPPORT_MAGIC_GATE
 	if ((chip->mspro_formatter_enable) &&
@@ -519,10 +518,8 @@ static int inquiry(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 #else
 	if (chip->mspro_formatter_enable)
 #endif
-	{
 		if (!card || (card == MS_CARD))
-			pro_formatter_flag = 1;
-	}
+			pro_formatter_flag = true;
 
 	if (pro_formatter_flag) {
 		if (scsi_bufflen(srb) < 56)
@@ -587,12 +584,14 @@ static int start_stop_unit(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 		if (check_card_ready(chip, lun))
 			return TRANSPORT_GOOD;
 		set_sense_type(chip, lun, SENSE_TYPE_MEDIA_NOT_PRESENT);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 
 		break;
 	}
 
-	TRACE_RET(chip, TRANSPORT_ERROR);
+	rtsx_trace(chip);
+	return TRANSPORT_ERROR;
 }
 
 
@@ -607,7 +606,8 @@ static int allow_medium_removal(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	if (prevent) {
 		set_sense_type(chip, SCSI_LUN(srb),
 			SENSE_TYPE_MEDIA_INVALID_CMD_FIELD);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 
 	return TRANSPORT_GOOD;
@@ -644,8 +644,10 @@ static int request_sense(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	}
 
 	buf = vmalloc(scsi_bufflen(srb));
-	if (buf == NULL)
-		TRACE_RET(chip, TRANSPORT_ERROR);
+	if (buf == NULL) {
+		rtsx_trace(chip);
+		return TRANSPORT_ERROR;
+	}
 
 	tmp = (unsigned char *)sense;
 	memcpy(buf, tmp, scsi_bufflen(srb));
@@ -665,7 +667,7 @@ static void ms_mode_sense(struct rtsx_chip *chip, u8 cmd,
 	struct ms_info *ms_card = &(chip->ms_card);
 	int sys_info_offset;
 	int data_size = buf_len;
-	int support_format = 0;
+	bool support_format = false;
 	int i = 0;
 
 	if (cmd == MODE_SENSE) {
@@ -686,10 +688,10 @@ static void ms_mode_sense(struct rtsx_chip *chip, u8 cmd,
 	/* Medium Type Code */
 	if (check_card_ready(chip, lun)) {
 		if (CHK_MSXC(ms_card)) {
-			support_format = 1;
+			support_format = true;
 			buf[i++] = 0x40;
 		} else if (CHK_MSPRO(ms_card)) {
-			support_format = 1;
+			support_format = true;
 			buf[i++] = 0x20;
 		} else {
 			buf[i++] = 0x10;
@@ -757,7 +759,7 @@ static int mode_sense(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	unsigned int lun = SCSI_LUN(srb);
 	unsigned int dataSize;
 	int status;
-	int pro_formatter_flag;
+	bool pro_formatter_flag;
 	unsigned char pageCode, *buf;
 	u8 card = get_lun_card(chip, lun);
 
@@ -765,32 +767,35 @@ static int mode_sense(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	if (!check_card_ready(chip, lun)) {
 		set_sense_type(chip, lun, SENSE_TYPE_MEDIA_NOT_PRESENT);
 		scsi_set_resid(srb, scsi_bufflen(srb));
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 #endif
 
-	pro_formatter_flag = 0;
+	pro_formatter_flag = false;
 	dataSize = 8;
 #ifdef SUPPORT_MAGIC_GATE
 	if ((chip->lun2card[lun] & MS_CARD)) {
 		if (!card || (card == MS_CARD)) {
 			dataSize = 108;
 			if (chip->mspro_formatter_enable)
-				pro_formatter_flag = 1;
+				pro_formatter_flag = true;
 		}
 	}
 #else
 	if (card == MS_CARD) {
 		if (chip->mspro_formatter_enable) {
-			pro_formatter_flag = 1;
+			pro_formatter_flag = true;
 			dataSize = 108;
 		}
 	}
 #endif
 
 	buf = kmalloc(dataSize, GFP_KERNEL);
-	if (buf == NULL)
-		TRACE_RET(chip, TRANSPORT_ERROR);
+	if (buf == NULL) {
+		rtsx_trace(chip);
+		return TRANSPORT_ERROR;
+	}
 
 	pageCode = srb->cmnd[2] & 0x3f;
 
@@ -869,7 +874,8 @@ static int read_write(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 
 	if (!check_card_ready(chip, lun) || (get_card_size(chip, lun) == 0)) {
 		set_sense_type(chip, lun, SENSE_TYPE_MEDIA_NOT_PRESENT);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 
 	if (!(CHK_BIT(chip->lun_mc, lun))) {
@@ -885,7 +891,8 @@ static int read_write(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 		 */
 		dev_dbg(rtsx_dev(chip), "SD card being erased!\n");
 		set_sense_type(chip, lun, SENSE_TYPE_MEDIA_READ_FORBIDDEN);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 
 	if (get_lun_card(chip, lun) == SD_CARD) {
@@ -893,7 +900,8 @@ static int read_write(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 			dev_dbg(rtsx_dev(chip), "SD card locked!\n");
 			set_sense_type(chip, lun,
 				SENSE_TYPE_MEDIA_READ_FORBIDDEN);
-			TRACE_RET(chip, TRANSPORT_FAILED);
+			rtsx_trace(chip);
+			return TRANSPORT_FAILED;
 		}
 	}
 #endif
@@ -916,7 +924,8 @@ static int read_write(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 		sec_cnt = ((u16)(srb->cmnd[9]) << 8) | srb->cmnd[10];
 	} else {
 		set_sense_type(chip, lun, SENSE_TYPE_MEDIA_INVALID_CMD_FIELD);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 
 	/* In some test, we will receive a start_sec like 0xFFFFFFFF.
@@ -926,7 +935,8 @@ static int read_write(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	if ((start_sec > get_card_size(chip, lun)) ||
 			((start_sec + sec_cnt) > get_card_size(chip, lun))) {
 		set_sense_type(chip, lun, SENSE_TYPE_MEDIA_LBA_OVER_RANGE);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 
 	if (sec_cnt == 0) {
@@ -942,7 +952,8 @@ static int read_write(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 		else
 			set_sense_type(chip, lun, SENSE_TYPE_MEDIA_WRITE_ERR);
 
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 
 	if (srb->sc_data_direction == DMA_TO_DEVICE) {
@@ -950,7 +961,8 @@ static int read_write(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 			dev_dbg(rtsx_dev(chip), "Write protected card!\n");
 			set_sense_type(chip, lun,
 				SENSE_TYPE_MEDIA_WRITE_PROTECT);
-			TRACE_RET(chip, TRANSPORT_FAILED);
+			rtsx_trace(chip);
+			return TRANSPORT_FAILED;
 		}
 	}
 
@@ -969,7 +981,8 @@ static int read_write(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 					SENSE_TYPE_MEDIA_WRITE_ERR);
 		}
 		retval = TRANSPORT_FAILED;
-		TRACE_GOTO(chip, Exit);
+		rtsx_trace(chip);
+		goto Exit;
 	} else {
 		chip->rw_fail_cnt[lun] = 0;
 		retval = TRANSPORT_GOOD;
@@ -994,15 +1007,18 @@ static int read_format_capacity(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	if (!check_card_ready(chip, lun)) {
 		if (!chip->mspro_formatter_enable) {
 			set_sense_type(chip, lun, SENSE_TYPE_MEDIA_NOT_PRESENT);
-			TRACE_RET(chip, TRANSPORT_FAILED);
+			rtsx_trace(chip);
+			return TRANSPORT_FAILED;
 		}
 	}
 
 	buf_len = (scsi_bufflen(srb) > 12) ? 0x14 : 12;
 
 	buf = kmalloc(buf_len, GFP_KERNEL);
-	if (buf == NULL)
-		TRACE_RET(chip, TRANSPORT_ERROR);
+	if (buf == NULL) {
+		rtsx_trace(chip);
+		return TRANSPORT_ERROR;
+	}
 
 	buf[i++] = 0;
 	buf[i++] = 0;
@@ -1067,7 +1083,8 @@ static int read_capacity(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 
 	if (!check_card_ready(chip, lun)) {
 		set_sense_type(chip, lun, SENSE_TYPE_MEDIA_NOT_PRESENT);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 
 	if (!(CHK_BIT(chip->lun_mc, lun))) {
@@ -1077,8 +1094,10 @@ static int read_capacity(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	}
 
 	buf = kmalloc(8, GFP_KERNEL);
-	if (buf == NULL)
-		TRACE_RET(chip, TRANSPORT_ERROR);
+	if (buf == NULL) {
+		rtsx_trace(chip);
+		return TRANSPORT_ERROR;
+	}
 
 	card_size = get_card_size(chip, lun);
 	buf[0] = (unsigned char)((card_size - 1) >> 24);
@@ -1116,15 +1135,18 @@ static int read_eeprom(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	len = ((u16)srb->cmnd[4] << 8) | srb->cmnd[5];
 
 	buf = vmalloc(len);
-	if (!buf)
-		TRACE_RET(chip, TRANSPORT_ERROR);
+	if (!buf) {
+		rtsx_trace(chip);
+		return TRANSPORT_ERROR;
+	}
 
 	retval = rtsx_force_power_on(chip, SSC_PDCTL);
 	if (retval != STATUS_SUCCESS) {
 		vfree(buf);
 		set_sense_type(chip, SCSI_LUN(srb),
 			SENSE_TYPE_MEDIA_UNRECOVER_READ_ERR);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 
 	for (i = 0; i < len; i++) {
@@ -1133,7 +1155,8 @@ static int read_eeprom(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 			vfree(buf);
 			set_sense_type(chip, SCSI_LUN(srb),
 				SENSE_TYPE_MEDIA_UNRECOVER_READ_ERR);
-			TRACE_RET(chip, TRANSPORT_FAILED);
+			rtsx_trace(chip);
+			return TRANSPORT_FAILED;
 		}
 	}
 
@@ -1165,7 +1188,8 @@ static int write_eeprom(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	retval = rtsx_force_power_on(chip, SSC_PDCTL);
 	if (retval != STATUS_SUCCESS) {
 		set_sense_type(chip, SCSI_LUN(srb), SENSE_TYPE_MEDIA_WRITE_ERR);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 
 	if (len == 511) {
@@ -1173,14 +1197,17 @@ static int write_eeprom(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 		if (retval != STATUS_SUCCESS) {
 			set_sense_type(chip, SCSI_LUN(srb),
 				SENSE_TYPE_MEDIA_WRITE_ERR);
-			TRACE_RET(chip, TRANSPORT_FAILED);
+			rtsx_trace(chip);
+			return TRANSPORT_FAILED;
 		}
 	} else {
 		len = (unsigned short)min_t(unsigned int, scsi_bufflen(srb),
 					len);
 		buf = vmalloc(len);
-		if (buf == NULL)
-			TRACE_RET(chip, TRANSPORT_ERROR);
+		if (buf == NULL) {
+			rtsx_trace(chip);
+			return TRANSPORT_ERROR;
+		}
 
 		rtsx_stor_get_xfer_buf(buf, len, srb);
 		scsi_set_resid(srb, scsi_bufflen(srb) - len);
@@ -1191,7 +1218,8 @@ static int write_eeprom(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 				vfree(buf);
 				set_sense_type(chip, SCSI_LUN(srb),
 					SENSE_TYPE_MEDIA_WRITE_ERR);
-				TRACE_RET(chip, TRANSPORT_FAILED);
+				rtsx_trace(chip);
+				return TRANSPORT_FAILED;
 			}
 		}
 
@@ -1221,18 +1249,22 @@ static int read_mem(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	if (addr < 0xFC00) {
 		set_sense_type(chip, SCSI_LUN(srb),
 			SENSE_TYPE_MEDIA_INVALID_CMD_FIELD);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 
 	buf = vmalloc(len);
-	if (!buf)
-		TRACE_RET(chip, TRANSPORT_ERROR);
+	if (!buf) {
+		rtsx_trace(chip);
+		return TRANSPORT_ERROR;
+	}
 
 	retval = rtsx_force_power_on(chip, SSC_PDCTL);
 	if (retval != STATUS_SUCCESS) {
 		vfree(buf);
 		set_sense_type(chip, SCSI_LUN(srb), SENSE_TYPE_MEDIA_WRITE_ERR);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 
 	for (i = 0; i < len; i++) {
@@ -1241,7 +1273,8 @@ static int read_mem(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 			vfree(buf);
 			set_sense_type(chip, SCSI_LUN(srb),
 				SENSE_TYPE_MEDIA_UNRECOVER_READ_ERR);
-			TRACE_RET(chip, TRANSPORT_FAILED);
+			rtsx_trace(chip);
+			return TRANSPORT_FAILED;
 		}
 	}
 
@@ -1274,13 +1307,16 @@ static int write_mem(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	if (addr < 0xFC00) {
 		set_sense_type(chip, SCSI_LUN(srb),
 			SENSE_TYPE_MEDIA_INVALID_CMD_FIELD);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 
 	len = (unsigned short)min_t(unsigned int, scsi_bufflen(srb), len);
 	buf = vmalloc(len);
-	if (buf == NULL)
-		TRACE_RET(chip, TRANSPORT_ERROR);
+	if (buf == NULL) {
+		rtsx_trace(chip);
+		return TRANSPORT_ERROR;
+	}
 
 	rtsx_stor_get_xfer_buf(buf, len, srb);
 	scsi_set_resid(srb, scsi_bufflen(srb) - len);
@@ -1289,7 +1325,8 @@ static int write_mem(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	if (retval != STATUS_SUCCESS) {
 		vfree(buf);
 		set_sense_type(chip, SCSI_LUN(srb), SENSE_TYPE_MEDIA_WRITE_ERR);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 
 	for (i = 0; i < len; i++) {
@@ -1298,7 +1335,8 @@ static int write_mem(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 			vfree(buf);
 			set_sense_type(chip, SCSI_LUN(srb),
 				SENSE_TYPE_MEDIA_WRITE_ERR);
-			TRACE_RET(chip, TRANSPORT_FAILED);
+			rtsx_trace(chip);
+			return TRANSPORT_FAILED;
 		}
 	}
 
@@ -1314,12 +1352,14 @@ static int get_sd_csd(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 
 	if (!check_card_ready(chip, lun)) {
 		set_sense_type(chip, lun, SENSE_TYPE_MEDIA_NOT_PRESENT);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 
 	if (get_lun_card(chip, lun) != SD_CARD) {
 		set_sense_type(chip, lun, SENSE_TYPE_MEDIA_UNRECOVER_READ_ERR);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 
 	scsi_set_resid(srb, 0);
@@ -1361,14 +1401,17 @@ static int trace_msg_cmd(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	if ((scsi_bufflen(srb) < buf_len) || (scsi_sglist(srb) == NULL)) {
 		set_sense_type(chip, SCSI_LUN(srb),
 			SENSE_TYPE_MEDIA_UNRECOVER_READ_ERR);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 
 	clear = srb->cmnd[2];
 
 	buf = vmalloc(scsi_bufflen(srb));
-	if (buf == NULL)
-		TRACE_RET(chip, TRANSPORT_ERROR);
+	if (buf == NULL) {
+		rtsx_trace(chip);
+		return TRANSPORT_ERROR;
+	}
 	ptr = buf;
 
 	if (chip->trace_msg[chip->msg_idx].valid)
@@ -1500,7 +1543,8 @@ static int set_variable(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 		default:
 			set_sense_type(chip, lun,
 				SENSE_TYPE_MEDIA_INVALID_CMD_FIELD);
-			TRACE_RET(chip, TRANSPORT_FAILED);
+			rtsx_trace(chip);
+			return TRANSPORT_FAILED;
 		}
 	} else if (srb->cmnd[3] == 2) {
 		if (srb->cmnd[4]) {
@@ -1523,14 +1567,16 @@ static int set_variable(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 			if (retval != STATUS_SUCCESS) {
 				set_sense_type(chip, SCSI_LUN(srb),
 					SENSE_TYPE_MEDIA_WRITE_ERR);
-				TRACE_RET(chip, TRANSPORT_FAILED);
+				rtsx_trace(chip);
+				return TRANSPORT_FAILED;
 			}
 
 			turn_off_led(chip, LED_GPIO);
 		}
 	} else {
 		set_sense_type(chip, lun, SENSE_TYPE_MEDIA_INVALID_CMD_FIELD);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 
 	return TRANSPORT_GOOD;
@@ -1562,7 +1608,8 @@ static int get_variable(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 		default:
 			set_sense_type(chip, lun,
 				SENSE_TYPE_MEDIA_INVALID_CMD_FIELD);
-			TRACE_RET(chip, TRANSPORT_FAILED);
+			rtsx_trace(chip);
+			return TRANSPORT_FAILED;
 		}
 
 		rtsx_stor_set_xfer_buf(&tmp, 1, srb);
@@ -1572,7 +1619,8 @@ static int get_variable(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 		rtsx_stor_set_xfer_buf(&tmp, 1, srb);
 	} else {
 		set_sense_type(chip, lun, SENSE_TYPE_MEDIA_INVALID_CMD_FIELD);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 
 	return TRANSPORT_GOOD;
@@ -1610,7 +1658,8 @@ static int dma_access_ring_buffer(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 			set_sense_type(chip, lun,
 				SENSE_TYPE_MEDIA_WRITE_ERR);
 
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 	scsi_set_resid(srb, 0);
 
@@ -1757,7 +1806,8 @@ static int set_chip_mode(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	if (!CHECK_PID(chip, 0x5208)) {
 		set_sense_type(chip, SCSI_LUN(srb),
 			SENSE_TYPE_MEDIA_INVALID_CMD_FIELD);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 
 	phy_debug_mode = (int)(srb->cmnd[3]);
@@ -1765,35 +1815,47 @@ static int set_chip_mode(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	if (phy_debug_mode) {
 		chip->phy_debug_mode = 1;
 		retval = rtsx_write_register(chip, CDRESUMECTL, 0x77, 0);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, TRANSPORT_FAILED);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return TRANSPORT_FAILED;
+		}
 
 		rtsx_disable_bus_int(chip);
 
 		retval = rtsx_read_phy_register(chip, 0x1C, &reg);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, TRANSPORT_FAILED);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return TRANSPORT_FAILED;
+		}
 
 		reg |= 0x0001;
 		retval = rtsx_write_phy_register(chip, 0x1C, reg);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, TRANSPORT_FAILED);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return TRANSPORT_FAILED;
+		}
 	} else {
 		chip->phy_debug_mode = 0;
 		retval = rtsx_write_register(chip, CDRESUMECTL, 0x77, 0x77);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, TRANSPORT_FAILED);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return TRANSPORT_FAILED;
+		}
 
 		rtsx_enable_bus_int(chip);
 
 		retval = rtsx_read_phy_register(chip, 0x1C, &reg);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, TRANSPORT_FAILED);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return TRANSPORT_FAILED;
+		}
 
 		reg &= 0xFFFE;
 		retval = rtsx_write_phy_register(chip, 0x1C, reg);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, TRANSPORT_FAILED);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return TRANSPORT_FAILED;
+		}
 	}
 
 	return TRANSPORT_GOOD;
@@ -1824,7 +1886,8 @@ static int rw_mem_cmd_buf(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 		if (cmd_type > 2) {
 			set_sense_type(chip, lun,
 				SENSE_TYPE_MEDIA_INVALID_CMD_FIELD);
-			TRACE_RET(chip, TRANSPORT_FAILED);
+			rtsx_trace(chip);
+			return TRANSPORT_FAILED;
 		}
 		addr = (srb->cmnd[5] << 8) | srb->cmnd[6];
 		mask = srb->cmnd[7];
@@ -1842,7 +1905,8 @@ static int rw_mem_cmd_buf(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 		if (scsi_bufflen(srb) < 1) {
 			set_sense_type(chip, lun,
 				SENSE_TYPE_MEDIA_INVALID_CMD_FIELD);
-			TRACE_RET(chip, TRANSPORT_FAILED);
+			rtsx_trace(chip);
+			return TRANSPORT_FAILED;
 		}
 		rtsx_stor_set_xfer_buf(&value, 1, srb);
 		scsi_set_resid(srb, 0);
@@ -1850,12 +1914,14 @@ static int rw_mem_cmd_buf(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 
 	default:
 		set_sense_type(chip, lun, SENSE_TYPE_MEDIA_INVALID_CMD_FIELD);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 
 	if (retval != STATUS_SUCCESS) {
 		set_sense_type(chip, lun, SENSE_TYPE_MEDIA_WRITE_ERR);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 
 	return TRANSPORT_GOOD;
@@ -1902,15 +1968,18 @@ static int read_phy_register(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 
 	if (len) {
 		buf = vmalloc(len);
-		if (!buf)
-			TRACE_RET(chip, TRANSPORT_ERROR);
+		if (!buf) {
+			rtsx_trace(chip);
+			return TRANSPORT_ERROR;
+		}
 
 		retval = rtsx_force_power_on(chip, SSC_PDCTL);
 		if (retval != STATUS_SUCCESS) {
 			vfree(buf);
 			set_sense_type(chip, SCSI_LUN(srb),
 				SENSE_TYPE_MEDIA_UNRECOVER_READ_ERR);
-			TRACE_RET(chip, TRANSPORT_FAILED);
+			rtsx_trace(chip);
+			return TRANSPORT_FAILED;
 		}
 
 		for (i = 0; i < len / 2; i++) {
@@ -1919,7 +1988,8 @@ static int read_phy_register(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 				vfree(buf);
 				set_sense_type(chip, SCSI_LUN(srb),
 					SENSE_TYPE_MEDIA_UNRECOVER_READ_ERR);
-				TRACE_RET(chip, TRANSPORT_FAILED);
+				rtsx_trace(chip);
+				return TRANSPORT_FAILED;
 			}
 
 			buf[2*i] = (u8)(val >> 8);
@@ -1963,8 +2033,10 @@ static int write_phy_register(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 					len);
 
 		buf = vmalloc(len);
-		if (buf == NULL)
-			TRACE_RET(chip, TRANSPORT_ERROR);
+		if (buf == NULL) {
+			rtsx_trace(chip);
+			return TRANSPORT_ERROR;
+		}
 
 		rtsx_stor_get_xfer_buf(buf, len, srb);
 		scsi_set_resid(srb, scsi_bufflen(srb) - len);
@@ -1974,7 +2046,8 @@ static int write_phy_register(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 			vfree(buf);
 			set_sense_type(chip, SCSI_LUN(srb),
 				SENSE_TYPE_MEDIA_WRITE_ERR);
-			TRACE_RET(chip, TRANSPORT_FAILED);
+			rtsx_trace(chip);
+			return TRANSPORT_FAILED;
 		}
 
 		for (i = 0; i < len / 2; i++) {
@@ -1984,7 +2057,8 @@ static int write_phy_register(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 				vfree(buf);
 				set_sense_type(chip, SCSI_LUN(srb),
 					SENSE_TYPE_MEDIA_WRITE_ERR);
-				TRACE_RET(chip, TRANSPORT_FAILED);
+				rtsx_trace(chip);
+				return TRANSPORT_FAILED;
 			}
 		}
 
@@ -2011,7 +2085,8 @@ static int erase_eeprom2(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	retval = rtsx_force_power_on(chip, SSC_PDCTL);
 	if (retval != STATUS_SUCCESS) {
 		set_sense_type(chip, SCSI_LUN(srb), SENSE_TYPE_MEDIA_WRITE_ERR);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 
 	mode = srb->cmnd[3];
@@ -2022,19 +2097,22 @@ static int erase_eeprom2(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 		if (retval != STATUS_SUCCESS) {
 			set_sense_type(chip, SCSI_LUN(srb),
 				SENSE_TYPE_MEDIA_WRITE_ERR);
-			TRACE_RET(chip, TRANSPORT_FAILED);
+			rtsx_trace(chip);
+			return TRANSPORT_FAILED;
 		}
 	} else if (mode == 1) {
 		retval = spi_erase_eeprom_byte(chip, addr);
 		if (retval != STATUS_SUCCESS) {
 			set_sense_type(chip, SCSI_LUN(srb),
 				SENSE_TYPE_MEDIA_WRITE_ERR);
-			TRACE_RET(chip, TRANSPORT_FAILED);
+			rtsx_trace(chip);
+			return TRANSPORT_FAILED;
 		}
 	} else {
 		set_sense_type(chip, SCSI_LUN(srb),
 			SENSE_TYPE_MEDIA_INVALID_CMD_FIELD);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 
 	return TRANSPORT_GOOD;
@@ -2058,15 +2136,18 @@ static int read_eeprom2(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	len = ((u16)srb->cmnd[6] << 8) | srb->cmnd[7];
 
 	buf = vmalloc(len);
-	if (!buf)
-		TRACE_RET(chip, TRANSPORT_ERROR);
+	if (!buf) {
+		rtsx_trace(chip);
+		return TRANSPORT_ERROR;
+	}
 
 	retval = rtsx_force_power_on(chip, SSC_PDCTL);
 	if (retval != STATUS_SUCCESS) {
 		vfree(buf);
 		set_sense_type(chip, SCSI_LUN(srb),
 			SENSE_TYPE_MEDIA_UNRECOVER_READ_ERR);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 
 	for (i = 0; i < len; i++) {
@@ -2075,7 +2156,8 @@ static int read_eeprom2(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 			vfree(buf);
 			set_sense_type(chip, SCSI_LUN(srb),
 				SENSE_TYPE_MEDIA_UNRECOVER_READ_ERR);
-			TRACE_RET(chip, TRANSPORT_FAILED);
+			rtsx_trace(chip);
+			return TRANSPORT_FAILED;
 		}
 	}
 
@@ -2107,8 +2189,10 @@ static int write_eeprom2(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 
 	len = (unsigned short)min_t(unsigned int, scsi_bufflen(srb), len);
 	buf = vmalloc(len);
-	if (buf == NULL)
-		TRACE_RET(chip, TRANSPORT_ERROR);
+	if (buf == NULL) {
+		rtsx_trace(chip);
+		return TRANSPORT_ERROR;
+	}
 
 	rtsx_stor_get_xfer_buf(buf, len, srb);
 	scsi_set_resid(srb, scsi_bufflen(srb) - len);
@@ -2117,7 +2201,8 @@ static int write_eeprom2(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	if (retval != STATUS_SUCCESS) {
 		vfree(buf);
 		set_sense_type(chip, SCSI_LUN(srb), SENSE_TYPE_MEDIA_WRITE_ERR);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 
 	for (i = 0; i < len; i++) {
@@ -2126,7 +2211,8 @@ static int write_eeprom2(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 			vfree(buf);
 			set_sense_type(chip, SCSI_LUN(srb),
 				SENSE_TYPE_MEDIA_WRITE_ERR);
-			TRACE_RET(chip, TRANSPORT_FAILED);
+			rtsx_trace(chip);
+			return TRANSPORT_FAILED;
 		}
 	}
 
@@ -2153,15 +2239,18 @@ static int read_efuse(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	len = srb->cmnd[5];
 
 	buf = vmalloc(len);
-	if (!buf)
-		TRACE_RET(chip, TRANSPORT_ERROR);
+	if (!buf) {
+		rtsx_trace(chip);
+		return TRANSPORT_ERROR;
+	}
 
 	retval = rtsx_force_power_on(chip, SSC_PDCTL);
 	if (retval != STATUS_SUCCESS) {
 		vfree(buf);
 		set_sense_type(chip, SCSI_LUN(srb),
 			SENSE_TYPE_MEDIA_UNRECOVER_READ_ERR);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 
 	for (i = 0; i < len; i++) {
@@ -2170,7 +2259,8 @@ static int read_efuse(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 			vfree(buf);
 			set_sense_type(chip, SCSI_LUN(srb),
 				SENSE_TYPE_MEDIA_UNRECOVER_READ_ERR);
-			TRACE_RET(chip, TRANSPORT_FAILED);
+			rtsx_trace(chip);
+			return TRANSPORT_FAILED;
 		}
 	}
 
@@ -2203,8 +2293,10 @@ static int write_efuse(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 
 	len = (u8)min_t(unsigned int, scsi_bufflen(srb), len);
 	buf = vmalloc(len);
-	if (buf == NULL)
-		TRACE_RET(chip, TRANSPORT_ERROR);
+	if (buf == NULL) {
+		rtsx_trace(chip);
+		return TRANSPORT_ERROR;
+	}
 
 	rtsx_stor_get_xfer_buf(buf, len, srb);
 	scsi_set_resid(srb, scsi_bufflen(srb) - len);
@@ -2212,21 +2304,24 @@ static int write_efuse(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	retval = rtsx_force_power_on(chip, SSC_PDCTL);
 	if (retval != STATUS_SUCCESS) {
 		vfree(buf);
-		TRACE_RET(chip, TRANSPORT_ERROR);
+		rtsx_trace(chip);
+		return TRANSPORT_ERROR;
 	}
 
 	if (chip->asic_code) {
 		retval = rtsx_read_phy_register(chip, 0x08, &val);
 		if (retval != STATUS_SUCCESS) {
 			vfree(buf);
-			TRACE_RET(chip, TRANSPORT_ERROR);
+			rtsx_trace(chip);
+			return TRANSPORT_ERROR;
 		}
 
 		retval = rtsx_write_register(chip, PWR_GATE_CTRL,
 					LDO3318_PWR_MASK, LDO_OFF);
 		if (retval != STATUS_SUCCESS) {
 			vfree(buf);
-			TRACE_RET(chip, TRANSPORT_ERROR);
+			rtsx_trace(chip);
+			return TRANSPORT_ERROR;
 		}
 
 		wait_timeout(600);
@@ -2235,14 +2330,16 @@ static int write_efuse(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 						0x4C00 | chip->phy_voltage);
 		if (retval != STATUS_SUCCESS) {
 			vfree(buf);
-			TRACE_RET(chip, TRANSPORT_ERROR);
+			rtsx_trace(chip);
+			return TRANSPORT_ERROR;
 		}
 
 		retval = rtsx_write_register(chip, PWR_GATE_CTRL,
 					LDO3318_PWR_MASK, LDO_ON);
 		if (retval != STATUS_SUCCESS) {
 			vfree(buf);
-			TRACE_RET(chip, TRANSPORT_ERROR);
+			rtsx_trace(chip);
+			return TRANSPORT_ERROR;
 		}
 
 		wait_timeout(600);
@@ -2251,7 +2348,8 @@ static int write_efuse(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	retval = card_power_on(chip, SPI_CARD);
 	if (retval != STATUS_SUCCESS) {
 		vfree(buf);
-		TRACE_RET(chip, TRANSPORT_ERROR);
+		rtsx_trace(chip);
+		return TRANSPORT_ERROR;
 	}
 
 	wait_timeout(50);
@@ -2262,7 +2360,8 @@ static int write_efuse(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 			set_sense_type(chip, SCSI_LUN(srb),
 				SENSE_TYPE_MEDIA_WRITE_ERR);
 			result = TRANSPORT_FAILED;
-			TRACE_GOTO(chip, Exit);
+			rtsx_trace(chip);
+			goto Exit;
 		}
 	}
 
@@ -2270,25 +2369,33 @@ Exit:
 	vfree(buf);
 
 	retval = card_power_off(chip, SPI_CARD);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, TRANSPORT_ERROR);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return TRANSPORT_ERROR;
+	}
 
 	if (chip->asic_code) {
 		retval = rtsx_write_register(chip, PWR_GATE_CTRL,
 					LDO3318_PWR_MASK, LDO_OFF);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, TRANSPORT_ERROR);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return TRANSPORT_ERROR;
+		}
 
 		wait_timeout(600);
 
 		retval = rtsx_write_phy_register(chip, 0x08, val);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, TRANSPORT_ERROR);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return TRANSPORT_ERROR;
+		}
 
 		retval = rtsx_write_register(chip, PWR_GATE_CTRL,
 					LDO3318_PWR_MASK, LDO_ON);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, TRANSPORT_ERROR);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return TRANSPORT_ERROR;
+		}
 	}
 
 	return result;
@@ -2297,7 +2404,8 @@ Exit:
 static int read_cfg_byte(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 {
 	int retval;
-	u8 func, func_max;
+	bool func_max;
+	u8 func;
 	u16 addr, len;
 	u8 *buf;
 
@@ -2317,26 +2425,30 @@ static int read_cfg_byte(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 		__func__, func, addr, len);
 
 	if (CHK_SDIO_EXIST(chip) && !CHK_SDIO_IGNORED(chip))
-		func_max = 1;
+		func_max = true;
 	else
-		func_max = 0;
+		func_max = false;
 
 	if (func > func_max) {
 		set_sense_type(chip, SCSI_LUN(srb),
 			SENSE_TYPE_MEDIA_INVALID_CMD_FIELD);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 
 	buf = vmalloc(len);
-	if (!buf)
-		TRACE_RET(chip, TRANSPORT_ERROR);
+	if (!buf) {
+		rtsx_trace(chip);
+		return TRANSPORT_ERROR;
+	}
 
 	retval = rtsx_read_cfg_seq(chip, func, addr, buf, len);
 	if (retval != STATUS_SUCCESS) {
 		set_sense_type(chip, SCSI_LUN(srb),
 			SENSE_TYPE_MEDIA_UNRECOVER_READ_ERR);
 		vfree(buf);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 
 	len = (u16)min_t(unsigned int, scsi_bufflen(srb), len);
@@ -2351,7 +2463,8 @@ static int read_cfg_byte(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 static int write_cfg_byte(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 {
 	int retval;
-	u8 func, func_max;
+	bool func_max;
+	u8 func;
 	u16 addr, len;
 	u8 *buf;
 
@@ -2371,20 +2484,23 @@ static int write_cfg_byte(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 		__func__, func, addr);
 
 	if (CHK_SDIO_EXIST(chip) && !CHK_SDIO_IGNORED(chip))
-		func_max = 1;
+		func_max = true;
 	else
-		func_max = 0;
+		func_max = false;
 
 	if (func > func_max) {
 		set_sense_type(chip, SCSI_LUN(srb),
 			SENSE_TYPE_MEDIA_INVALID_CMD_FIELD);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 
 	len = (unsigned short)min_t(unsigned int, scsi_bufflen(srb), len);
 	buf = vmalloc(len);
-	if (!buf)
-		TRACE_RET(chip, TRANSPORT_ERROR);
+	if (!buf) {
+		rtsx_trace(chip);
+		return TRANSPORT_ERROR;
+	}
 
 	rtsx_stor_get_xfer_buf(buf, len, srb);
 	scsi_set_resid(srb, scsi_bufflen(srb) - len);
@@ -2393,7 +2509,8 @@ static int write_cfg_byte(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	if (retval != STATUS_SUCCESS) {
 		set_sense_type(chip, SCSI_LUN(srb), SENSE_TYPE_MEDIA_WRITE_ERR);
 		vfree(buf);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 
 	vfree(buf);
@@ -2483,7 +2600,8 @@ static int app_cmd(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	default:
 		set_sense_type(chip, SCSI_LUN(srb),
 			SENSE_TYPE_MEDIA_INVALID_CMD_FIELD);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 
 	return result;
@@ -2626,7 +2744,8 @@ static int get_card_bus_width(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 
 	if (!check_card_ready(chip, lun)) {
 		set_sense_type(chip, lun, SENSE_TYPE_MEDIA_NOT_PRESENT);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 
 	card = get_lun_card(chip, lun);
@@ -2634,7 +2753,8 @@ static int get_card_bus_width(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 		bus_width = chip->card_bus_width[lun];
 	} else {
 		set_sense_type(chip, lun, SENSE_TYPE_MEDIA_UNRECOVER_READ_ERR);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 
 	scsi_set_resid(srb, 0);
@@ -2651,7 +2771,8 @@ static int spi_vendor_cmd(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 
 	if (CHECK_PID(chip, 0x5208) || CHECK_PID(chip, 0x5288)) {
 		set_sense_type(chip, lun, SENSE_TYPE_MEDIA_INVALID_CMD_FIELD);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 
 	rtsx_disable_aspm(chip);
@@ -2700,13 +2821,16 @@ static int spi_vendor_cmd(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 		rtsx_write_register(chip, CARD_GPIO_DIR, 0x07, gpio_dir);
 
 		set_sense_type(chip, lun, SENSE_TYPE_MEDIA_INVALID_CMD_FIELD);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 
 	rtsx_write_register(chip, CARD_GPIO_DIR, 0x07, gpio_dir);
 
-	if (result != STATUS_SUCCESS)
-		TRACE_RET(chip, TRANSPORT_FAILED);
+	if (result != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
+	}
 
 	return TRANSPORT_GOOD;
 }
@@ -2765,7 +2889,8 @@ static int vendor_cmnd(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	default:
 		set_sense_type(chip, SCSI_LUN(srb),
 			SENSE_TYPE_MEDIA_INVALID_CMD_FIELD);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 
 	return result;
@@ -2797,18 +2922,21 @@ static int ms_format_cmnd(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 {
 	struct ms_info *ms_card = &(chip->ms_card);
 	unsigned int lun = SCSI_LUN(srb);
-	int retval, quick_format;
+	bool quick_format;
+	int retval;
 
 	if (get_lun_card(chip, lun) != MS_CARD) {
 		set_sense_type(chip, lun, SENSE_TYPE_MEDIA_LUN_NOT_SUPPORT);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 
 	if ((srb->cmnd[3] != 0x4D) || (srb->cmnd[4] != 0x47) ||
 		(srb->cmnd[5] != 0x66) || (srb->cmnd[6] != 0x6D) ||
 		(srb->cmnd[7] != 0x74)) {
 		set_sense_type(chip, lun, SENSE_TYPE_MEDIA_INVALID_CMD_FIELD);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 
 	rtsx_disable_aspm(chip);
@@ -2820,35 +2948,40 @@ static int ms_format_cmnd(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 		if (!check_card_ready(chip, lun) ||
 				(get_card_size(chip, lun) == 0)) {
 			set_sense_type(chip, lun, SENSE_TYPE_MEDIA_NOT_PRESENT);
-			TRACE_RET(chip, TRANSPORT_FAILED);
+			rtsx_trace(chip);
+			return TRANSPORT_FAILED;
 		}
 	}
 	rtsx_set_stat(chip, RTSX_STAT_RUN);
 
 	if (srb->cmnd[8] & 0x01)
-		quick_format = 0;
+		quick_format = false;
 	else
-		quick_format = 1;
+		quick_format = true;
 
 	if (!(chip->card_ready & MS_CARD)) {
 		set_sense_type(chip, lun, SENSE_TYPE_MEDIA_NOT_PRESENT);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 
 	if (chip->card_wp & MS_CARD) {
 		set_sense_type(chip, lun, SENSE_TYPE_MEDIA_WRITE_PROTECT);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 
 	if (!CHK_MSPRO(ms_card)) {
 		set_sense_type(chip, lun, SENSE_TYPE_MEDIA_LUN_NOT_SUPPORT);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 
 	retval = mspro_format(srb, chip, MS_SHORT_DATA_LEN, quick_format);
 	if (retval != STATUS_SUCCESS) {
 		set_sense_type(chip, lun, SENSE_TYPE_FORMAT_CMD_FAILED);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 
 	scsi_set_resid(srb, 0);
@@ -2867,18 +3000,21 @@ static int get_ms_information(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 
 	if (!check_card_ready(chip, lun)) {
 		set_sense_type(chip, lun, SENSE_TYPE_MEDIA_NOT_PRESENT);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 	if (get_lun_card(chip, lun) != MS_CARD) {
 		set_sense_type(chip, lun, SENSE_TYPE_MEDIA_LUN_NOT_SUPPORT);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 
 	if ((srb->cmnd[2] != 0xB0) || (srb->cmnd[4] != 0x4D) ||
 		(srb->cmnd[5] != 0x53) || (srb->cmnd[6] != 0x49) ||
 		(srb->cmnd[7] != 0x44)) {
 		set_sense_type(chip, lun, SENSE_TYPE_MEDIA_INVALID_CMD_FIELD);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 
 	dev_info_id = srb->cmnd[3];
@@ -2886,7 +3022,8 @@ static int get_ms_information(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 			(!CHK_MSXC(ms_card) && (dev_info_id == 0x13)) ||
 			!CHK_MSPRO(ms_card)) {
 		set_sense_type(chip, lun, SENSE_TYPE_MEDIA_INVALID_CMD_FIELD);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 
 	if (dev_info_id == 0x15)
@@ -2895,8 +3032,10 @@ static int get_ms_information(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 		buf_len = data_len = 0x6A;
 
 	buf = kmalloc(buf_len, GFP_KERNEL);
-	if (!buf)
-		TRACE_RET(chip, TRANSPORT_ERROR);
+	if (!buf) {
+		rtsx_trace(chip);
+		return TRANSPORT_ERROR;
+	}
 
 	i = 0;
 	/*  GET Memory Stick Media Information Response Header */
@@ -2983,11 +3122,13 @@ static int sd_extention_cmnd(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 
 	if (!check_card_ready(chip, lun)) {
 		set_sense_type(chip, lun, SENSE_TYPE_MEDIA_NOT_PRESENT);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 	if (get_lun_card(chip, lun) != SD_CARD) {
 		set_sense_type(chip, lun, SENSE_TYPE_MEDIA_LUN_NOT_SUPPORT);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 
 	switch (srb->cmnd[0]) {
@@ -3017,7 +3158,8 @@ static int sd_extention_cmnd(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 
 	default:
 		set_sense_type(chip, lun, SENSE_TYPE_MEDIA_INVALID_CMD_FIELD);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 
 	return result;
@@ -3044,21 +3186,25 @@ static int mg_report_key(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 
 	if (!check_card_ready(chip, lun)) {
 		set_sense_type(chip, lun, SENSE_TYPE_MEDIA_NOT_PRESENT);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 	if (get_lun_card(chip, lun) != MS_CARD) {
 		set_sense_type(chip, lun, SENSE_TYPE_MEDIA_LUN_NOT_SUPPORT);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 
 	if (srb->cmnd[7] != KC_MG_R_PRO) {
 		set_sense_type(chip, lun, SENSE_TYPE_MEDIA_INVALID_CMD_FIELD);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 
 	if (!CHK_MSPRO(ms_card)) {
 		set_sense_type(chip, lun, SENSE_TYPE_MG_INCOMPATIBLE_MEDIUM);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 
 	key_format = srb->cmnd[10] & 0x3F;
@@ -3070,13 +3216,16 @@ static int mg_report_key(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 			(srb->cmnd[8] == 0x04) &&
 			(srb->cmnd[9] == 0x1C)) {
 			retval = mg_get_local_EKB(srb, chip);
-			if (retval != STATUS_SUCCESS)
-				TRACE_RET(chip, TRANSPORT_FAILED);
+			if (retval != STATUS_SUCCESS) {
+				rtsx_trace(chip);
+				return TRANSPORT_FAILED;
+			}
 
 		} else {
 			set_sense_type(chip, lun,
 				SENSE_TYPE_MEDIA_INVALID_CMD_FIELD);
-			TRACE_RET(chip, TRANSPORT_FAILED);
+			rtsx_trace(chip);
+			return TRANSPORT_FAILED;
 		}
 		break;
 
@@ -3085,13 +3234,16 @@ static int mg_report_key(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 			(srb->cmnd[8] == 0x00) &&
 			(srb->cmnd[9] == 0x24)) {
 			retval = mg_get_rsp_chg(srb, chip);
-			if (retval != STATUS_SUCCESS)
-				TRACE_RET(chip, TRANSPORT_FAILED);
+			if (retval != STATUS_SUCCESS) {
+				rtsx_trace(chip);
+				return TRANSPORT_FAILED;
+			}
 
 		} else {
 			set_sense_type(chip, lun,
 				SENSE_TYPE_MEDIA_INVALID_CMD_FIELD);
-			TRACE_RET(chip, TRANSPORT_FAILED);
+			rtsx_trace(chip);
+			return TRANSPORT_FAILED;
 		}
 		break;
 
@@ -3105,19 +3257,23 @@ static int mg_report_key(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 			(srb->cmnd[4] == 0x00) &&
 			(srb->cmnd[5] < 32)) {
 			retval = mg_get_ICV(srb, chip);
-			if (retval != STATUS_SUCCESS)
-				TRACE_RET(chip, TRANSPORT_FAILED);
+			if (retval != STATUS_SUCCESS) {
+				rtsx_trace(chip);
+				return TRANSPORT_FAILED;
+			}
 
 		} else {
 			set_sense_type(chip, lun,
 				SENSE_TYPE_MEDIA_INVALID_CMD_FIELD);
-			TRACE_RET(chip, TRANSPORT_FAILED);
+			rtsx_trace(chip);
+			return TRANSPORT_FAILED;
 		}
 		break;
 
 	default:
 		set_sense_type(chip, lun, SENSE_TYPE_MEDIA_INVALID_CMD_FIELD);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 
 	scsi_set_resid(srb, 0);
@@ -3143,25 +3299,30 @@ static int mg_send_key(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 
 	if (!check_card_ready(chip, lun)) {
 		set_sense_type(chip, lun, SENSE_TYPE_MEDIA_NOT_PRESENT);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 	if (check_card_wp(chip, lun)) {
 		set_sense_type(chip, lun, SENSE_TYPE_MEDIA_WRITE_PROTECT);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 	if (get_lun_card(chip, lun) != MS_CARD) {
 		set_sense_type(chip, lun, SENSE_TYPE_MEDIA_LUN_NOT_SUPPORT);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 
 	if (srb->cmnd[7] != KC_MG_R_PRO) {
 		set_sense_type(chip, lun, SENSE_TYPE_MEDIA_INVALID_CMD_FIELD);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 
 	if (!CHK_MSPRO(ms_card)) {
 		set_sense_type(chip, lun, SENSE_TYPE_MG_INCOMPATIBLE_MEDIUM);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 
 	key_format = srb->cmnd[10] & 0x3F;
@@ -3173,13 +3334,16 @@ static int mg_send_key(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 			(srb->cmnd[8] == 0x00) &&
 			(srb->cmnd[9] == 0x0C)) {
 			retval = mg_set_leaf_id(srb, chip);
-			if (retval != STATUS_SUCCESS)
-				TRACE_RET(chip, TRANSPORT_FAILED);
+			if (retval != STATUS_SUCCESS) {
+				rtsx_trace(chip);
+				return TRANSPORT_FAILED;
+			}
 
 		} else {
 			set_sense_type(chip, lun,
 				SENSE_TYPE_MEDIA_INVALID_CMD_FIELD);
-			TRACE_RET(chip, TRANSPORT_FAILED);
+			rtsx_trace(chip);
+			return TRANSPORT_FAILED;
 		}
 		break;
 
@@ -3188,13 +3352,16 @@ static int mg_send_key(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 			(srb->cmnd[8] == 0x00) &&
 			(srb->cmnd[9] == 0x0C)) {
 			retval = mg_chg(srb, chip);
-			if (retval != STATUS_SUCCESS)
-				TRACE_RET(chip, TRANSPORT_FAILED);
+			if (retval != STATUS_SUCCESS) {
+				rtsx_trace(chip);
+				return TRANSPORT_FAILED;
+			}
 
 		} else {
 			set_sense_type(chip, lun,
 				SENSE_TYPE_MEDIA_INVALID_CMD_FIELD);
-			TRACE_RET(chip, TRANSPORT_FAILED);
+			rtsx_trace(chip);
+			return TRANSPORT_FAILED;
 		}
 		break;
 
@@ -3203,13 +3370,16 @@ static int mg_send_key(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 			(srb->cmnd[8] == 0x00) &&
 			(srb->cmnd[9] == 0x0C)) {
 			retval = mg_rsp(srb, chip);
-			if (retval != STATUS_SUCCESS)
-				TRACE_RET(chip, TRANSPORT_FAILED);
+			if (retval != STATUS_SUCCESS) {
+				rtsx_trace(chip);
+				return TRANSPORT_FAILED;
+			}
 
 		} else {
 			set_sense_type(chip, lun,
 				SENSE_TYPE_MEDIA_INVALID_CMD_FIELD);
-			TRACE_RET(chip, TRANSPORT_FAILED);
+			rtsx_trace(chip);
+			return TRANSPORT_FAILED;
 		}
 		break;
 
@@ -3223,19 +3393,23 @@ static int mg_send_key(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 			(srb->cmnd[4] == 0x00) &&
 			(srb->cmnd[5] < 32)) {
 			retval = mg_set_ICV(srb, chip);
-			if (retval != STATUS_SUCCESS)
-				TRACE_RET(chip, TRANSPORT_FAILED);
+			if (retval != STATUS_SUCCESS) {
+				rtsx_trace(chip);
+				return TRANSPORT_FAILED;
+			}
 
 		} else {
 			set_sense_type(chip, lun,
 				SENSE_TYPE_MEDIA_INVALID_CMD_FIELD);
-			TRACE_RET(chip, TRANSPORT_FAILED);
+			rtsx_trace(chip);
+			return TRANSPORT_FAILED;
 		}
 		break;
 
 	default:
 		set_sense_type(chip, lun, SENSE_TYPE_MEDIA_INVALID_CMD_FIELD);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 
 	scsi_set_resid(srb, 0);
@@ -3264,7 +3438,8 @@ int rtsx_scsi_handler(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 			/* Logical Unit Not Ready Format in Progress */
 			set_sense_data(chip, lun, CUR_ERR,
 				       0x02, 0, 0x04, 0x04, 0, 0);
-			TRACE_RET(chip, TRANSPORT_FAILED);
+			rtsx_trace(chip);
+			return TRANSPORT_FAILED;
 		}
 	}
 #endif
@@ -3276,7 +3451,8 @@ int rtsx_scsi_handler(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 			/* Logical Unit Not Ready Format in Progress */
 			set_sense_data(chip, lun, CUR_ERR, 0x02, 0, 0x04, 0x04,
 					0, (u16)(ms_card->progress));
-			TRACE_RET(chip, TRANSPORT_FAILED);
+			rtsx_trace(chip);
+			return TRANSPORT_FAILED;
 		}
 	}
 
diff --git a/drivers/staging/rts5208/rtsx_transport.c b/drivers/staging/rts5208/rtsx_transport.c
index dab1995..f27491e 100644
--- a/drivers/staging/rts5208/rtsx_transport.c
+++ b/drivers/staging/rts5208/rtsx_transport.c
@@ -25,10 +25,6 @@
 #include <linux/sched.h>
 
 #include "rtsx.h"
-#include "rtsx_scsi.h"
-#include "rtsx_transport.h"
-#include "rtsx_chip.h"
-#include "rtsx_card.h"
 
 /***********************************************************************
  * Scatter-gather transfer buffer access routines
@@ -276,7 +272,8 @@ int rtsx_send_cmd(struct rtsx_chip *chip, u8 card, int timeout)
 		dev_dbg(rtsx_dev(chip), "chip->int_reg = 0x%x\n",
 			chip->int_reg);
 		err = -ETIMEDOUT;
-		TRACE_GOTO(chip, finish_send_cmd);
+		rtsx_trace(chip);
+		goto finish_send_cmd;
 	}
 
 	spin_lock_irq(&rtsx->reg_lock);
@@ -642,7 +639,7 @@ static int rtsx_transfer_buf(struct rtsx_chip *chip, u8 card, void *buf,
 	dma_addr_t addr;
 	u8 dir;
 	int err = 0;
-	u32 val = (1 << 31);
+	u32 val = 1 << 31;
 	long timeleft;
 
 	if ((buf == NULL) || (len <= 0))
diff --git a/drivers/staging/rts5208/sd.c b/drivers/staging/rts5208/sd.c
index c28a927..a8d657b 100644
--- a/drivers/staging/rts5208/sd.c
+++ b/drivers/staging/rts5208/sd.c
@@ -25,9 +25,6 @@
 #include <linux/sched.h>
 
 #include "rtsx.h"
-#include "rtsx_transport.h"
-#include "rtsx_scsi.h"
-#include "rtsx_card.h"
 #include "sd.h"
 
 #define SD_MAX_RETRY_COUNT	3
@@ -108,13 +105,19 @@ static void sd_init_reg_addr(struct rtsx_chip *chip)
 
 static int sd_check_data0_status(struct rtsx_chip *chip)
 {
+	int retval;
 	u8 stat;
 
-	RTSX_READ_REG(chip, REG_SD_STAT1, &stat);
+	retval = rtsx_read_register(chip, REG_SD_STAT1, &stat);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 
 	if (!(stat & SD_DAT0_STATUS)) {
 		sd_set_err_code(chip, SD_BUSY);
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	return STATUS_SUCCESS;
@@ -187,7 +190,8 @@ RTY_SEND_CMD:
 				retval = sd_check_data0_status(chip);
 				if (retval != STATUS_SUCCESS) {
 					rtsx_clear_sd_error(chip);
-					TRACE_RET(chip, retval);
+					rtsx_trace(chip);
+					return retval;
 				}
 			} else {
 				sd_set_err_code(chip, SD_TO_ERR);
@@ -198,7 +202,8 @@ RTY_SEND_CMD:
 		}
 		rtsx_clear_sd_error(chip);
 
-		TRACE_RET(chip, retval);
+		rtsx_trace(chip);
+		return retval;
 	}
 
 	if (rsp_type == SD_RSP_TYPE_R0)
@@ -208,14 +213,16 @@ RTY_SEND_CMD:
 
 	if ((ptr[0] & 0xC0) != 0) {
 		sd_set_err_code(chip, SD_STS_ERR);
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	if (!(rsp_type & SD_NO_CHECK_CRC7)) {
 		if (ptr[stat_idx] & SD_CRC7_ERR) {
 			if (cmd_idx == WRITE_MULTIPLE_BLOCK) {
 				sd_set_err_code(chip, SD_CRC_ERR);
-				TRACE_RET(chip, STATUS_FAIL);
+				rtsx_trace(chip);
+				return STATUS_FAIL;
 			}
 			if (rty_cnt < SD_MAX_RETRY_COUNT) {
 				wait_timeout(20);
@@ -223,7 +230,8 @@ RTY_SEND_CMD:
 				goto RTY_SEND_CMD;
 			} else {
 				sd_set_err_code(chip, SD_CRC_ERR);
-				TRACE_RET(chip, STATUS_FAIL);
+				rtsx_trace(chip);
+				return STATUS_FAIL;
 			}
 		}
 	}
@@ -232,8 +240,10 @@ RTY_SEND_CMD:
 		if ((cmd_idx != SEND_RELATIVE_ADDR) &&
 			(cmd_idx != SEND_IF_COND)) {
 			if (cmd_idx != STOP_TRANSMISSION) {
-				if (ptr[1] & 0x80)
-					TRACE_RET(chip, STATUS_FAIL);
+				if (ptr[1] & 0x80) {
+					rtsx_trace(chip);
+					return STATUS_FAIL;
+				}
 			}
 #ifdef SUPPORT_SD_LOCK
 			if (ptr[1] & 0x7D)
@@ -243,17 +253,20 @@ RTY_SEND_CMD:
 			{
 				dev_dbg(rtsx_dev(chip), "ptr[1]: 0x%02x\n",
 					ptr[1]);
-				TRACE_RET(chip, STATUS_FAIL);
+				rtsx_trace(chip);
+				return STATUS_FAIL;
 			}
 			if (ptr[2] & 0xFF) {
 				dev_dbg(rtsx_dev(chip), "ptr[2]: 0x%02x\n",
 					ptr[2]);
-				TRACE_RET(chip, STATUS_FAIL);
+				rtsx_trace(chip);
+				return STATUS_FAIL;
 			}
 			if (ptr[3] & 0x80) {
 				dev_dbg(rtsx_dev(chip), "ptr[3]: 0x%02x\n",
 					ptr[3]);
-				TRACE_RET(chip, STATUS_FAIL);
+				rtsx_trace(chip);
+				return STATUS_FAIL;
 			}
 			if (ptr[3] & 0x01)
 				sd_card->sd_data_buf_ready = 1;
@@ -282,8 +295,10 @@ static int sd_read_data(struct rtsx_chip *chip,
 	if (!buf)
 		buf_len = 0;
 
-	if (buf_len > 512)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (buf_len > 512) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	rtsx_init_cmd(chip);
 
@@ -323,13 +338,16 @@ static int sd_read_data(struct rtsx_chip *chip,
 					    SD_RSP_TYPE_R1, NULL, 0);
 		}
 
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	if (buf && buf_len) {
 		retval = rtsx_read_ppbuf(chip, buf, buf_len);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 	}
 
 	return STATUS_SUCCESS;
@@ -350,13 +368,16 @@ static int sd_write_data(struct rtsx_chip *chip, u8 trans_mode,
 
 	if (buf_len > 512) {
 		/* This function can't write data more than one page */
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	if (buf && buf_len) {
 		retval = rtsx_write_ppbuf(chip, buf, buf_len);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 	}
 
 	rtsx_init_cmd(chip);
@@ -395,7 +416,8 @@ static int sd_write_data(struct rtsx_chip *chip, u8 trans_mode,
 				sd_card->sd_addr, SD_RSP_TYPE_R1, NULL, 0);
 		}
 
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	return STATUS_SUCCESS;
@@ -412,7 +434,8 @@ static int sd_check_csd(struct rtsx_chip *chip, char check_wp)
 	for (i = 0; i < 6; i++) {
 		if (detect_card_cd(chip, SD_CARD) != STATUS_SUCCESS) {
 			sd_set_err_code(chip, SD_NO_CARD);
-			TRACE_RET(chip, STATUS_FAIL);
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		}
 
 		retval = sd_send_cmd_get_rsp(chip, SEND_CSD, sd_card->sd_addr,
@@ -421,8 +444,10 @@ static int sd_check_csd(struct rtsx_chip *chip, char check_wp)
 			break;
 	}
 
-	if (i == 6)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (i == 6) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	memcpy(sd_card->raw_csd, rsp + 1, 15);
 
@@ -464,10 +489,12 @@ static int sd_check_csd(struct rtsx_chip *chip, char check_wp)
 			else
 				sd_card->sd_clock = CLK_20;
 		} else {
-			TRACE_RET(chip, STATUS_FAIL);
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		}
 	} else {
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	if (CHK_MMC_SECTOR_MODE(sd_card)) {
@@ -507,8 +534,8 @@ static int sd_check_csd(struct rtsx_chip *chip, char check_wp)
 
 static int sd_set_sample_push_timing(struct rtsx_chip *chip)
 {
+	int retval;
 	struct sd_info *sd_card = &(chip->sd_card);
-
 	u8 val = 0;
 
 	if ((chip->sd_ctl & SD_PUSH_POINT_CTL_MASK) == SD_PUSH_POINT_DELAY)
@@ -536,7 +563,11 @@ static int sd_set_sample_push_timing(struct rtsx_chip *chip)
 			val |= 0x08;
 	}
 
-	RTSX_WRITE_REG(chip, REG_SD_CFG1, 0x1C, val);
+	retval = rtsx_write_register(chip, REG_SD_CFG1, 0x1C, val);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 
 	return STATUS_SUCCESS;
 }
@@ -585,6 +616,7 @@ static void sd_choose_proper_clock(struct rtsx_chip *chip)
 
 static int sd_set_clock_divider(struct rtsx_chip *chip, u8 clk_div)
 {
+	int retval;
 	u8 mask = 0, val = 0;
 
 	mask = 0x60;
@@ -595,7 +627,11 @@ static int sd_set_clock_divider(struct rtsx_chip *chip, u8 clk_div)
 	else if (clk_div == SD_CLK_DIVIDE_256)
 		val = 0x20;
 
-	RTSX_WRITE_REG(chip, REG_SD_CFG1, mask, val);
+	retval = rtsx_write_register(chip, REG_SD_CFG1, mask, val);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 
 	return STATUS_SUCCESS;
 }
@@ -606,14 +642,18 @@ static int sd_set_init_para(struct rtsx_chip *chip)
 	int retval;
 
 	retval = sd_set_sample_push_timing(chip);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	sd_choose_proper_clock(chip);
 
 	retval = switch_clock(chip, sd_card->sd_clock);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	return STATUS_SUCCESS;
 }
@@ -636,8 +676,10 @@ int sd_select_card(struct rtsx_chip *chip, int select)
 	}
 
 	retval = sd_send_cmd_get_rsp(chip, cmd_idx, addr, cmd_type, NULL, 0);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	return STATUS_SUCCESS;
 }
@@ -651,8 +693,10 @@ static int sd_update_lock_status(struct rtsx_chip *chip)
 
 	retval = sd_send_cmd_get_rsp(chip, SEND_STATUS, sd_card->sd_addr,
 				SD_RSP_TYPE_R1, rsp, 5);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	if (rsp[1] & 0x02)
 		sd_card->sd_lock_status |= SD_LOCKED;
@@ -662,8 +706,10 @@ static int sd_update_lock_status(struct rtsx_chip *chip)
 	dev_dbg(rtsx_dev(chip), "sd_card->sd_lock_status = 0x%x\n",
 		sd_card->sd_lock_status);
 
-	if (rsp[1] & 0x01)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (rsp[1] & 0x01) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	return STATUS_SUCCESS;
 }
@@ -680,15 +726,18 @@ static int sd_wait_state_data_ready(struct rtsx_chip *chip, u8 state,
 		retval = sd_send_cmd_get_rsp(chip, SEND_STATUS,
 					sd_card->sd_addr, SD_RSP_TYPE_R1, rsp,
 					5);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 
 		if (((rsp[3] & 0x1E) == state) &&
 			((rsp[3] & 0x01) == data_ready))
 			return STATUS_SUCCESS;
 	}
 
-	TRACE_RET(chip, STATUS_FAIL);
+	rtsx_trace(chip);
+	return STATUS_FAIL;
 }
 
 static int sd_change_bank_voltage(struct rtsx_chip *chip, u8 voltage)
@@ -700,24 +749,39 @@ static int sd_change_bank_voltage(struct rtsx_chip *chip, u8 voltage)
 			retval = rtsx_write_phy_register(chip, 0x08,
 							0x4FC0 |
 							chip->phy_voltage);
-			if (retval != STATUS_SUCCESS)
-				TRACE_RET(chip, STATUS_FAIL);
+			if (retval != STATUS_SUCCESS) {
+				rtsx_trace(chip);
+				return STATUS_FAIL;
+			}
 		} else {
-			RTSX_WRITE_REG(chip, SD_PAD_CTL, SD_IO_USING_1V8, 0);
+			retval = rtsx_write_register(chip, SD_PAD_CTL,
+						     SD_IO_USING_1V8, 0);
+			if (retval) {
+				rtsx_trace(chip);
+				return retval;
+			}
 		}
 	} else if (voltage == SD_IO_1V8) {
 		if (chip->asic_code) {
 			retval = rtsx_write_phy_register(chip, 0x08,
 							0x4C40 |
 							chip->phy_voltage);
-			if (retval != STATUS_SUCCESS)
-				TRACE_RET(chip, STATUS_FAIL);
+			if (retval != STATUS_SUCCESS) {
+				rtsx_trace(chip);
+				return STATUS_FAIL;
+			}
 		} else {
-			RTSX_WRITE_REG(chip, SD_PAD_CTL, SD_IO_USING_1V8,
-				SD_IO_USING_1V8);
+			retval = rtsx_write_register(chip, SD_PAD_CTL,
+						     SD_IO_USING_1V8,
+						     SD_IO_USING_1V8);
+			if (retval) {
+				rtsx_trace(chip);
+				return retval;
+			}
 		}
 	} else {
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	return STATUS_SUCCESS;
@@ -728,33 +792,61 @@ static int sd_voltage_switch(struct rtsx_chip *chip)
 	int retval;
 	u8 stat;
 
-	RTSX_WRITE_REG(chip, SD_BUS_STAT, SD_CLK_TOGGLE_EN | SD_CLK_FORCE_STOP,
-		SD_CLK_TOGGLE_EN);
+	retval = rtsx_write_register(chip, SD_BUS_STAT,
+				     SD_CLK_TOGGLE_EN | SD_CLK_FORCE_STOP,
+				     SD_CLK_TOGGLE_EN);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 
 	retval = sd_send_cmd_get_rsp(chip, VOLTAGE_SWITCH, 0, SD_RSP_TYPE_R1,
 				NULL, 0);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	udelay(chip->sd_voltage_switch_delay);
 
-	RTSX_READ_REG(chip, SD_BUS_STAT, &stat);
+	retval = rtsx_read_register(chip, SD_BUS_STAT, &stat);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 	if (stat & (SD_CMD_STATUS | SD_DAT3_STATUS | SD_DAT2_STATUS |
 				SD_DAT1_STATUS | SD_DAT0_STATUS)) {
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
-	RTSX_WRITE_REG(chip, SD_BUS_STAT, 0xFF, SD_CLK_FORCE_STOP);
+	retval = rtsx_write_register(chip, SD_BUS_STAT, 0xFF,
+				     SD_CLK_FORCE_STOP);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 	retval = sd_change_bank_voltage(chip, SD_IO_1V8);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	wait_timeout(50);
 
-	RTSX_WRITE_REG(chip, SD_BUS_STAT, 0xFF, SD_CLK_TOGGLE_EN);
+	retval = rtsx_write_register(chip, SD_BUS_STAT, 0xFF,
+				     SD_CLK_TOGGLE_EN);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 	wait_timeout(10);
 
-	RTSX_READ_REG(chip, SD_BUS_STAT, &stat);
+	retval = rtsx_read_register(chip, SD_BUS_STAT, &stat);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 	if ((stat & (SD_CMD_STATUS | SD_DAT3_STATUS | SD_DAT2_STATUS |
 				SD_DAT1_STATUS | SD_DAT0_STATUS)) !=
 			(SD_CMD_STATUS | SD_DAT3_STATUS | SD_DAT2_STATUS |
@@ -763,23 +855,48 @@ static int sd_voltage_switch(struct rtsx_chip *chip)
 		rtsx_write_register(chip, SD_BUS_STAT,
 				SD_CLK_TOGGLE_EN | SD_CLK_FORCE_STOP, 0);
 		rtsx_write_register(chip, CARD_CLK_EN, 0xFF, 0);
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
-	RTSX_WRITE_REG(chip, SD_BUS_STAT, SD_CLK_TOGGLE_EN | SD_CLK_FORCE_STOP,
-		0);
+	retval = rtsx_write_register(chip, SD_BUS_STAT,
+				     SD_CLK_TOGGLE_EN | SD_CLK_FORCE_STOP, 0);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 
 	return STATUS_SUCCESS;
 }
 
 static int sd_reset_dcm(struct rtsx_chip *chip, u8 tune_dir)
 {
+	int retval;
+
 	if (tune_dir == TUNE_RX) {
-		RTSX_WRITE_REG(chip, DCM_DRP_CTL, 0xFF, DCM_RESET | DCM_RX);
-		RTSX_WRITE_REG(chip, DCM_DRP_CTL, 0xFF, DCM_RX);
+		retval = rtsx_write_register(chip, DCM_DRP_CTL, 0xFF,
+					     DCM_RESET | DCM_RX);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
+		retval = rtsx_write_register(chip, DCM_DRP_CTL, 0xFF, DCM_RX);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
 	} else {
-		RTSX_WRITE_REG(chip, DCM_DRP_CTL, 0xFF, DCM_RESET | DCM_TX);
-		RTSX_WRITE_REG(chip, DCM_DRP_CTL, 0xFF, DCM_TX);
+		retval = rtsx_write_register(chip, DCM_DRP_CTL, 0xFF,
+					     DCM_RESET | DCM_TX);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
+		retval = rtsx_write_register(chip, DCM_DRP_CTL, 0xFF, DCM_TX);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
 	}
 
 	return STATUS_SUCCESS;
@@ -791,7 +908,7 @@ static int sd_change_phase(struct rtsx_chip *chip, u8 sample_point, u8 tune_dir)
 	u16 SD_VP_CTL, SD_DCMPS_CTL;
 	u8 val;
 	int retval;
-	int ddr_rx = 0;
+	bool ddr_rx = false;
 
 	dev_dbg(rtsx_dev(chip), "sd_change_phase (sample_point = %d, tune_dir = %d)\n",
 		sample_point, tune_dir);
@@ -800,19 +917,42 @@ static int sd_change_phase(struct rtsx_chip *chip, u8 sample_point, u8 tune_dir)
 		SD_VP_CTL = SD_VPRX_CTL;
 		SD_DCMPS_CTL = SD_DCMPS_RX_CTL;
 		if (CHK_SD_DDR50(sd_card))
-			ddr_rx = 1;
+			ddr_rx = true;
 	} else {
 		SD_VP_CTL = SD_VPTX_CTL;
 		SD_DCMPS_CTL = SD_DCMPS_TX_CTL;
 	}
 
 	if (chip->asic_code) {
-		RTSX_WRITE_REG(chip, CLK_CTL, CHANGE_CLK, CHANGE_CLK);
-		RTSX_WRITE_REG(chip, SD_VP_CTL, 0x1F, sample_point);
-		RTSX_WRITE_REG(chip, SD_VPCLK0_CTL, PHASE_NOT_RESET, 0);
-		RTSX_WRITE_REG(chip, SD_VPCLK0_CTL, PHASE_NOT_RESET,
-			PHASE_NOT_RESET);
-		RTSX_WRITE_REG(chip, CLK_CTL, CHANGE_CLK, 0);
+		retval = rtsx_write_register(chip, CLK_CTL, CHANGE_CLK,
+					     CHANGE_CLK);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
+		retval = rtsx_write_register(chip, SD_VP_CTL, 0x1F,
+					     sample_point);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
+		retval = rtsx_write_register(chip, SD_VPCLK0_CTL,
+					     PHASE_NOT_RESET, 0);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
+		retval = rtsx_write_register(chip, SD_VPCLK0_CTL,
+					     PHASE_NOT_RESET, PHASE_NOT_RESET);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
+		retval = rtsx_write_register(chip, CLK_CTL, CHANGE_CLK, 0);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
 	} else {
 		rtsx_read_register(chip, SD_VP_CTL, &val);
 		dev_dbg(rtsx_dev(chip), "SD_VP_CTL: 0x%x\n", val);
@@ -820,16 +960,34 @@ static int sd_change_phase(struct rtsx_chip *chip, u8 sample_point, u8 tune_dir)
 		dev_dbg(rtsx_dev(chip), "SD_DCMPS_CTL: 0x%x\n", val);
 
 		if (ddr_rx) {
-			RTSX_WRITE_REG(chip, SD_VP_CTL, PHASE_CHANGE,
-				PHASE_CHANGE);
+			retval = rtsx_write_register(chip, SD_VP_CTL,
+						     PHASE_CHANGE,
+						     PHASE_CHANGE);
+			if (retval) {
+				rtsx_trace(chip);
+				return retval;
+			}
 			udelay(50);
-			RTSX_WRITE_REG(chip, SD_VP_CTL, 0xFF,
-				PHASE_CHANGE | PHASE_NOT_RESET | sample_point);
+			retval = rtsx_write_register(chip, SD_VP_CTL, 0xFF,
+						     PHASE_CHANGE | PHASE_NOT_RESET | sample_point);
+			if (retval) {
+				rtsx_trace(chip);
+				return retval;
+			}
 		} else {
-			RTSX_WRITE_REG(chip, CLK_CTL, CHANGE_CLK, CHANGE_CLK);
+			retval = rtsx_write_register(chip, CLK_CTL,
+						     CHANGE_CLK, CHANGE_CLK);
+			if (retval) {
+				rtsx_trace(chip);
+				return retval;
+			}
 			udelay(50);
-			RTSX_WRITE_REG(chip, SD_VP_CTL, 0xFF,
-					PHASE_NOT_RESET | sample_point);
+			retval = rtsx_write_register(chip, SD_VP_CTL, 0xFF,
+						     PHASE_NOT_RESET | sample_point);
+			if (retval) {
+				rtsx_trace(chip);
+				return retval;
+			}
 		}
 		udelay(100);
 
@@ -839,26 +997,52 @@ static int sd_change_phase(struct rtsx_chip *chip, u8 sample_point, u8 tune_dir)
 		rtsx_add_cmd(chip, CHECK_REG_CMD, SD_DCMPS_CTL,
 			DCMPS_CHANGE_DONE, DCMPS_CHANGE_DONE);
 		retval = rtsx_send_cmd(chip, SD_CARD, 100);
-		if (retval != STATUS_SUCCESS)
-			TRACE_GOTO(chip, Fail);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			goto Fail;
+		}
 
 		val = *rtsx_get_cmd_data(chip);
-		if (val & DCMPS_ERROR)
-			TRACE_GOTO(chip, Fail);
+		if (val & DCMPS_ERROR) {
+			rtsx_trace(chip);
+			goto Fail;
+		}
 
-		if ((val & DCMPS_CURRENT_PHASE) != sample_point)
-			TRACE_GOTO(chip, Fail);
+		if ((val & DCMPS_CURRENT_PHASE) != sample_point) {
+			rtsx_trace(chip);
+			goto Fail;
+		}
 
-		RTSX_WRITE_REG(chip, SD_DCMPS_CTL, DCMPS_CHANGE, 0);
-		if (ddr_rx)
-			RTSX_WRITE_REG(chip, SD_VP_CTL, PHASE_CHANGE, 0);
-		else
-			RTSX_WRITE_REG(chip, CLK_CTL, CHANGE_CLK, 0);
+		retval = rtsx_write_register(chip, SD_DCMPS_CTL,
+					     DCMPS_CHANGE, 0);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
+		if (ddr_rx) {
+			retval = rtsx_write_register(chip, SD_VP_CTL,
+						     PHASE_CHANGE, 0);
+			if (retval) {
+				rtsx_trace(chip);
+				return retval;
+			}
+		} else {
+			retval = rtsx_write_register(chip, CLK_CTL,
+						     CHANGE_CLK, 0);
+			if (retval) {
+				rtsx_trace(chip);
+				return retval;
+			}
+		}
 
 		udelay(50);
 	}
 
-	RTSX_WRITE_REG(chip, SD_CFG1, SD_ASYNC_FIFO_NOT_RST, 0);
+	retval = rtsx_write_register(chip, SD_CFG1, SD_ASYNC_FIFO_NOT_RST, 0);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 
 	return STATUS_SUCCESS;
 
@@ -883,8 +1067,10 @@ static int sd_check_spec(struct rtsx_chip *chip, u8 bus_width)
 
 	retval = sd_send_cmd_get_rsp(chip, APP_CMD, sd_card->sd_addr,
 				SD_RSP_TYPE_R1, NULL, 0);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	cmd[0] = 0x40 | SEND_SCR;
 	cmd[1] = 0;
@@ -896,13 +1082,16 @@ static int sd_check_spec(struct rtsx_chip *chip, u8 bus_width)
 			buf, 8, 250);
 	if (retval != STATUS_SUCCESS) {
 		rtsx_clear_sd_error(chip);
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	memcpy(sd_card->raw_scr, buf, 8);
 
-	if ((buf[0] & 0x0F) == 0)
-		TRACE_RET(chip, STATUS_FAIL);
+	if ((buf[0] & 0x0F) == 0) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	return STATUS_SUCCESS;
 }
@@ -944,7 +1133,8 @@ static int sd_query_switch_result(struct rtsx_chip *chip, u8 func_group,
 			break;
 
 		default:
-			TRACE_RET(chip, STATUS_FAIL);
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		}
 	} else if (func_group == SD_FUNC_GROUP_3) {
 		support_offset = FUNCTION_GROUP3_SUPPORT_OFFSET;
@@ -971,7 +1161,8 @@ static int sd_query_switch_result(struct rtsx_chip *chip, u8 func_group,
 			break;
 
 		default:
-			TRACE_RET(chip, STATUS_FAIL);
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		}
 	} else if (func_group == SD_FUNC_GROUP_4) {
 		support_offset = FUNCTION_GROUP4_SUPPORT_OFFSET;
@@ -998,23 +1189,27 @@ static int sd_query_switch_result(struct rtsx_chip *chip, u8 func_group,
 			break;
 
 		default:
-			TRACE_RET(chip, STATUS_FAIL);
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		}
 	} else {
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	if (func_group == SD_FUNC_GROUP_1) {
 		if (!(buf[support_offset] & support_mask) ||
 			((buf[query_switch_offset] & 0x0F) != query_switch)) {
-			TRACE_RET(chip, STATUS_FAIL);
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		}
 	}
 
 	/* Check 'Busy Status' */
 	if ((buf[DATA_STRUCTURE_VER_OFFSET] == 0x01) &&
 		    ((buf[check_busy_offset] & switch_busy) == switch_busy)) {
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	return STATUS_SUCCESS;
@@ -1056,7 +1251,8 @@ static int sd_check_switch_mode(struct rtsx_chip *chip, u8 mode,
 			buf, 64, 250);
 	if (retval != STATUS_SUCCESS) {
 		rtsx_clear_sd_error(chip);
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	dev_dbg(rtsx_dev(chip), "%*ph\n", 64, buf);
@@ -1083,19 +1279,33 @@ static int sd_check_switch_mode(struct rtsx_chip *chip, u8 mode,
 
 		dev_dbg(rtsx_dev(chip), "Maximum current consumption: %dmA\n",
 			cc);
-		if ((cc == 0) || (cc > 800))
-			TRACE_RET(chip, STATUS_FAIL);
+		if ((cc == 0) || (cc > 800)) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 
 		retval = sd_query_switch_result(chip, func_group,
 						func_to_switch, buf, 64);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 
 		if ((cc > 400) || (func_to_switch > CURRENT_LIMIT_400)) {
-			RTSX_WRITE_REG(chip, OCPPARA2, SD_OCP_THD_MASK,
-				chip->sd_800mA_ocp_thd);
-			RTSX_WRITE_REG(chip, CARD_PWR_CTL, PMOS_STRG_MASK,
-				PMOS_STRG_800mA);
+			retval = rtsx_write_register(chip, OCPPARA2,
+						     SD_OCP_THD_MASK,
+						     chip->sd_800mA_ocp_thd);
+			if (retval) {
+				rtsx_trace(chip);
+				return retval;
+			}
+			retval = rtsx_write_register(chip, CARD_PWR_CTL,
+						     PMOS_STRG_MASK,
+						     PMOS_STRG_800mA);
+			if (retval) {
+				rtsx_trace(chip);
+				return retval;
+			}
 		}
 	}
 
@@ -1121,12 +1331,13 @@ static int sd_check_switch(struct rtsx_chip *chip,
 {
 	int retval;
 	int i;
-	int switch_good = 0;
+	bool switch_good = false;
 
 	for (i = 0; i < 3; i++) {
 		if (detect_card_cd(chip, SD_CARD) != STATUS_SUCCESS) {
 			sd_set_err_code(chip, SD_NO_CARD);
-			TRACE_RET(chip, STATUS_FAIL);
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		}
 
 		retval = sd_check_switch_mode(chip, SD_CHECK_MODE, func_group,
@@ -1137,14 +1348,19 @@ static int sd_check_switch(struct rtsx_chip *chip,
 			retval = sd_check_switch_mode(chip, SD_SWITCH_MODE,
 					func_group, func_to_switch, bus_width);
 			if (retval == STATUS_SUCCESS) {
-				switch_good = 1;
+				switch_good = true;
 				break;
 			}
 
-			RTSX_READ_REG(chip, SD_STAT1, &stat);
+			retval = rtsx_read_register(chip, SD_STAT1, &stat);
+			if (retval) {
+				rtsx_trace(chip);
+				return retval;
+			}
 			if (stat & SD_CRC16_ERR) {
 				dev_dbg(rtsx_dev(chip), "SD CRC16 error when switching mode\n");
-				TRACE_RET(chip, STATUS_FAIL);
+				rtsx_trace(chip);
+				return STATUS_FAIL;
 			}
 		}
 
@@ -1154,8 +1370,10 @@ static int sd_check_switch(struct rtsx_chip *chip,
 		wait_timeout(20);
 	}
 
-	if (!switch_good)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (!switch_good) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	return STATUS_SUCCESS;
 }
@@ -1170,8 +1388,10 @@ static int sd_switch_function(struct rtsx_chip *chip, u8 bus_width)
 	/* Get supported functions */
 	retval = sd_check_switch_mode(chip, SD_CHECK_MODE,
 			NO_ARGUMENT, NO_ARGUMENT, bus_width);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	sd_card->func_group1_mask &= ~(sd_card->sd_switch_fail);
 
@@ -1239,7 +1459,8 @@ static int sd_switch_function(struct rtsx_chip *chip, u8 bus_width)
 				sd_card->sd_switch_fail = SDR104_SUPPORT_MASK |
 					DDR50_SUPPORT_MASK | SDR50_SUPPORT_MASK;
 			}
-			TRACE_RET(chip, STATUS_FAIL);
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		}
 
 		if (func_to_switch == SDR104_SUPPORT)
@@ -1253,10 +1474,17 @@ static int sd_switch_function(struct rtsx_chip *chip, u8 bus_width)
 	}
 
 	if (CHK_SD_DDR50(sd_card)) {
-		RTSX_WRITE_REG(chip, SD_PUSH_POINT_CTL, 0x06, 0x04);
+		retval = rtsx_write_register(chip, SD_PUSH_POINT_CTL, 0x06,
+					     0x04);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
 		retval = sd_set_sample_push_timing(chip);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 	}
 
 	if (!func_to_switch || (func_to_switch == HS_SUPPORT)) {
@@ -1310,15 +1538,22 @@ static int sd_switch_function(struct rtsx_chip *chip, u8 bus_width)
 		retval = sd_check_switch(chip, SD_FUNC_GROUP_4, func_to_switch,
 					bus_width);
 		if (retval != STATUS_SUCCESS) {
-			if (sd_check_err_code(chip, SD_NO_CARD))
-				TRACE_RET(chip, STATUS_FAIL);
+			if (sd_check_err_code(chip, SD_NO_CARD)) {
+				rtsx_trace(chip);
+				return STATUS_FAIL;
+			}
 		}
 		dev_dbg(rtsx_dev(chip), "Switch current limit finished! (%d)\n",
 			retval);
 	}
 
-	if (CHK_SD_DDR50(sd_card))
-		RTSX_WRITE_REG(chip, SD_PUSH_POINT_CTL, 0x06, 0);
+	if (CHK_SD_DDR50(sd_card)) {
+		retval = rtsx_write_register(chip, SD_PUSH_POINT_CTL, 0x06, 0);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
+	}
 
 	return STATUS_SUCCESS;
 }
@@ -1330,7 +1565,11 @@ static int sd_wait_data_idle(struct rtsx_chip *chip)
 	u8 val = 0;
 
 	for (i = 0; i < 100; i++) {
-		RTSX_READ_REG(chip, SD_DATA_STATE, &val);
+		retval = rtsx_read_register(chip, SD_DATA_STATE, &val);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
 		if (val & SD_DATA_IDLE) {
 			retval = STATUS_SUCCESS;
 			break;
@@ -1348,8 +1587,10 @@ static int sd_sdr_tuning_rx_cmd(struct rtsx_chip *chip, u8 sample_point)
 	u8 cmd[5];
 
 	retval = sd_change_phase(chip, sample_point, TUNE_RX);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	cmd[0] = 0x40 | SEND_TUNING_PATTERN;
 	cmd[1] = 0;
@@ -1363,7 +1604,8 @@ static int sd_sdr_tuning_rx_cmd(struct rtsx_chip *chip, u8 sample_point)
 		(void)sd_wait_data_idle(chip);
 
 		rtsx_clear_sd_error(chip);
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	return STATUS_SUCCESS;
@@ -1376,15 +1618,19 @@ static int sd_ddr_tuning_rx_cmd(struct rtsx_chip *chip, u8 sample_point)
 	u8 cmd[5];
 
 	retval = sd_change_phase(chip, sample_point, TUNE_RX);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	dev_dbg(rtsx_dev(chip), "sd ddr tuning rx\n");
 
 	retval = sd_send_cmd_get_rsp(chip, APP_CMD, sd_card->sd_addr,
 				SD_RSP_TYPE_R1, NULL, 0);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	cmd[0] = 0x40 | SD_STATUS;
 	cmd[1] = 0;
@@ -1398,7 +1644,8 @@ static int sd_ddr_tuning_rx_cmd(struct rtsx_chip *chip, u8 sample_point)
 		(void)sd_wait_data_idle(chip);
 
 		rtsx_clear_sd_error(chip);
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	return STATUS_SUCCESS;
@@ -1418,8 +1665,10 @@ static int mmc_ddr_tunning_rx_cmd(struct rtsx_chip *chip, u8 sample_point)
 		bus_width = SD_BUS_WIDTH_1;
 
 	retval = sd_change_phase(chip, sample_point, TUNE_RX);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	dev_dbg(rtsx_dev(chip), "mmc ddr tuning rx\n");
 
@@ -1435,7 +1684,8 @@ static int mmc_ddr_tunning_rx_cmd(struct rtsx_chip *chip, u8 sample_point)
 		(void)sd_wait_data_idle(chip);
 
 		rtsx_clear_sd_error(chip);
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	return STATUS_SUCCESS;
@@ -1447,11 +1697,17 @@ static int sd_sdr_tuning_tx_cmd(struct rtsx_chip *chip, u8 sample_point)
 	int retval;
 
 	retval = sd_change_phase(chip, sample_point, TUNE_TX);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
-	RTSX_WRITE_REG(chip, SD_CFG3, SD_RSP_80CLK_TIMEOUT_EN,
-		SD_RSP_80CLK_TIMEOUT_EN);
+	retval = rtsx_write_register(chip, SD_CFG3, SD_RSP_80CLK_TIMEOUT_EN,
+				     SD_RSP_80CLK_TIMEOUT_EN);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 
 	retval = sd_send_cmd_get_rsp(chip, SEND_STATUS, sd_card->sd_addr,
 		SD_RSP_TYPE_R1, NULL, 0);
@@ -1459,11 +1715,17 @@ static int sd_sdr_tuning_tx_cmd(struct rtsx_chip *chip, u8 sample_point)
 		if (sd_check_err_code(chip, SD_RSP_TIMEOUT)) {
 			rtsx_write_register(chip, SD_CFG3,
 					SD_RSP_80CLK_TIMEOUT_EN, 0);
-			TRACE_RET(chip, STATUS_FAIL);
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		}
 	}
 
-	RTSX_WRITE_REG(chip, SD_CFG3, SD_RSP_80CLK_TIMEOUT_EN, 0);
+	retval = rtsx_write_register(chip, SD_CFG3, SD_RSP_80CLK_TIMEOUT_EN,
+				     0);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 
 	return STATUS_SUCCESS;
 }
@@ -1475,8 +1737,10 @@ static int sd_ddr_tuning_tx_cmd(struct rtsx_chip *chip, u8 sample_point)
 	u8 cmd[5], bus_width;
 
 	retval = sd_change_phase(chip, sample_point, TUNE_TX);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	if (CHK_SD(sd_card)) {
 		bus_width = SD_BUS_WIDTH_4;
@@ -1490,11 +1754,17 @@ static int sd_ddr_tuning_tx_cmd(struct rtsx_chip *chip, u8 sample_point)
 	}
 
 	retval = sd_wait_state_data_ready(chip, 0x08, 1, 1000);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
-	RTSX_WRITE_REG(chip, SD_CFG3, SD_RSP_80CLK_TIMEOUT_EN,
-		SD_RSP_80CLK_TIMEOUT_EN);
+	retval = rtsx_write_register(chip, SD_CFG3, SD_RSP_80CLK_TIMEOUT_EN,
+				     SD_RSP_80CLK_TIMEOUT_EN);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 
 	cmd[0] = 0x40 | PROGRAM_CSD;
 	cmd[1] = 0;
@@ -1507,10 +1777,16 @@ static int sd_ddr_tuning_tx_cmd(struct rtsx_chip *chip, u8 sample_point)
 	if (retval != STATUS_SUCCESS) {
 		rtsx_clear_sd_error(chip);
 		rtsx_write_register(chip, SD_CFG3, SD_RSP_80CLK_TIMEOUT_EN, 0);
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
-	RTSX_WRITE_REG(chip, SD_CFG3, SD_RSP_80CLK_TIMEOUT_EN, 0);
+	retval = rtsx_write_register(chip, SD_CFG3, SD_RSP_80CLK_TIMEOUT_EN,
+				     0);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 
 	sd_send_cmd_get_rsp(chip, SEND_STATUS, sd_card->sd_addr, SD_RSP_TYPE_R1,
 			NULL, 0);
@@ -1524,7 +1800,8 @@ static u8 sd_search_final_phase(struct rtsx_chip *chip, u32 phase_map,
 	struct sd_info *sd_card = &(chip->sd_card);
 	struct timing_phase_path path[MAX_PHASE + 1];
 	int i, j, cont_path_cnt;
-	int new_block, max_len, final_path_idx;
+	bool new_block;
+	int max_len, final_path_idx;
 	u8 final_phase = 0xFF;
 
 	if (phase_map == 0xFFFFFFFF) {
@@ -1537,12 +1814,12 @@ static u8 sd_search_final_phase(struct rtsx_chip *chip, u32 phase_map,
 	}
 
 	cont_path_cnt = 0;
-	new_block = 1;
+	new_block = true;
 	j = 0;
 	for (i = 0; i < MAX_PHASE + 1; i++) {
 		if (phase_map & (1 << i)) {
 			if (new_block) {
-				new_block = 0;
+				new_block = false;
 				j = cont_path_cnt++;
 				path[j].start = i;
 				path[j].end = i;
@@ -1550,7 +1827,7 @@ static u8 sd_search_final_phase(struct rtsx_chip *chip, u32 phase_map,
 				path[j].end = i;
 			}
 		} else {
-			new_block = 1;
+			new_block = true;
 			if (cont_path_cnt) {
 				int idx = cont_path_cnt - 1;
 
@@ -1654,8 +1931,10 @@ static int sd_tuning_rx(struct rtsx_chip *chip)
 	} else {
 		if (CHK_MMC_DDR52(sd_card))
 			tuning_cmd = mmc_ddr_tunning_rx_cmd;
-		else
-			TRACE_RET(chip, STATUS_FAIL);
+		else {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 	}
 
 	for (i = 0; i < 3; i++) {
@@ -1663,7 +1942,8 @@ static int sd_tuning_rx(struct rtsx_chip *chip)
 		for (j = MAX_PHASE; j >= 0; j--) {
 			if (detect_card_cd(chip, SD_CARD) != STATUS_SUCCESS) {
 				sd_set_err_code(chip, SD_NO_CARD);
-				TRACE_RET(chip, STATUS_FAIL);
+				rtsx_trace(chip);
+				return STATUS_FAIL;
 			}
 
 			retval = tuning_cmd(chip, (u8)j);
@@ -1680,12 +1960,16 @@ static int sd_tuning_rx(struct rtsx_chip *chip)
 	dev_dbg(rtsx_dev(chip), "RX phase_map = 0x%08x\n", phase_map);
 
 	final_phase = sd_search_final_phase(chip, phase_map, TUNE_RX);
-	if (final_phase == 0xFF)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (final_phase == 0xFF) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	retval = sd_change_phase(chip, final_phase, TUNE_RX);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	return STATUS_SUCCESS;
 }
@@ -1698,8 +1982,12 @@ static int sd_ddr_pre_tuning_tx(struct rtsx_chip *chip)
 	u32 phase_map;
 	u8 final_phase;
 
-	RTSX_WRITE_REG(chip, SD_CFG3, SD_RSP_80CLK_TIMEOUT_EN,
-		SD_RSP_80CLK_TIMEOUT_EN);
+	retval = rtsx_write_register(chip, SD_CFG3, SD_RSP_80CLK_TIMEOUT_EN,
+				     SD_RSP_80CLK_TIMEOUT_EN);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 
 	phase_map = 0;
 	for (i = MAX_PHASE; i >= 0; i--) {
@@ -1707,7 +1995,8 @@ static int sd_ddr_pre_tuning_tx(struct rtsx_chip *chip)
 			sd_set_err_code(chip, SD_NO_CARD);
 			rtsx_write_register(chip, SD_CFG3,
 						SD_RSP_80CLK_TIMEOUT_EN, 0);
-			TRACE_RET(chip, STATUS_FAIL);
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		}
 
 		retval = sd_change_phase(chip, (u8)i, TUNE_TX);
@@ -1722,18 +2011,27 @@ static int sd_ddr_pre_tuning_tx(struct rtsx_chip *chip)
 			phase_map |= 1 << i;
 	}
 
-	RTSX_WRITE_REG(chip, SD_CFG3, SD_RSP_80CLK_TIMEOUT_EN, 0);
+	retval = rtsx_write_register(chip, SD_CFG3, SD_RSP_80CLK_TIMEOUT_EN,
+				     0);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 
 	dev_dbg(rtsx_dev(chip), "DDR TX pre tune phase_map = 0x%08x\n",
 		phase_map);
 
 	final_phase = sd_search_final_phase(chip, phase_map, TUNE_TX);
-	if (final_phase == 0xFF)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (final_phase == 0xFF) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	retval = sd_change_phase(chip, final_phase, TUNE_TX);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	dev_dbg(rtsx_dev(chip), "DDR TX pre tune phase: %d\n",
 		(int)final_phase);
@@ -1759,8 +2057,10 @@ static int sd_tuning_tx(struct rtsx_chip *chip)
 	} else {
 		if (CHK_MMC_DDR52(sd_card))
 			tuning_cmd = sd_ddr_tuning_tx_cmd;
-		else
-			TRACE_RET(chip, STATUS_FAIL);
+		else {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 	}
 
 	for (i = 0; i < 3; i++) {
@@ -1770,7 +2070,8 @@ static int sd_tuning_tx(struct rtsx_chip *chip)
 				sd_set_err_code(chip, SD_NO_CARD);
 				rtsx_write_register(chip, SD_CFG3,
 						    SD_RSP_80CLK_TIMEOUT_EN, 0);
-				TRACE_RET(chip, STATUS_FAIL);
+				rtsx_trace(chip);
+				return STATUS_FAIL;
 			}
 
 			retval = tuning_cmd(chip, (u8)j);
@@ -1787,12 +2088,16 @@ static int sd_tuning_tx(struct rtsx_chip *chip)
 	dev_dbg(rtsx_dev(chip), "TX phase_map = 0x%08x\n", phase_map);
 
 	final_phase = sd_search_final_phase(chip, phase_map, TUNE_TX);
-	if (final_phase == 0xFF)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (final_phase == 0xFF) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	retval = sd_change_phase(chip, final_phase, TUNE_TX);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	return STATUS_SUCCESS;
 }
@@ -1802,12 +2107,16 @@ static int sd_sdr_tuning(struct rtsx_chip *chip)
 	int retval;
 
 	retval = sd_tuning_tx(chip);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	retval = sd_tuning_rx(chip);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	return STATUS_SUCCESS;
 }
@@ -1818,23 +2127,31 @@ static int sd_ddr_tuning(struct rtsx_chip *chip)
 
 	if (!(chip->sd_ctl & SD_DDR_TX_PHASE_SET_BY_USER)) {
 		retval = sd_ddr_pre_tuning_tx(chip);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 	} else {
 		retval = sd_change_phase(chip, (u8)chip->sd_ddr_tx_phase,
 					TUNE_TX);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 	}
 
 	retval = sd_tuning_rx(chip);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	if (!(chip->sd_ctl & SD_DDR_TX_PHASE_SET_BY_USER)) {
 		retval = sd_tuning_tx(chip);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 	}
 
 	return STATUS_SUCCESS;
@@ -1846,23 +2163,31 @@ static int mmc_ddr_tuning(struct rtsx_chip *chip)
 
 	if (!(chip->sd_ctl & MMC_DDR_TX_PHASE_SET_BY_USER)) {
 		retval = sd_ddr_pre_tuning_tx(chip);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 	} else {
 		retval = sd_change_phase(chip, (u8)chip->mmc_ddr_tx_phase,
 					TUNE_TX);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 	}
 
 	retval = sd_tuning_rx(chip);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	if (!(chip->sd_ctl & MMC_DDR_TX_PHASE_SET_BY_USER)) {
 		retval = sd_tuning_tx(chip);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 	}
 
 	return STATUS_SUCCESS;
@@ -1875,12 +2200,16 @@ int sd_switch_clock(struct rtsx_chip *chip)
 	int re_tuning = 0;
 
 	retval = select_card(chip, SD_CARD);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	retval = switch_clock(chip, sd_card->sd_clock);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	if (re_tuning) {
 		if (CHK_SD(sd_card)) {
@@ -1893,8 +2222,10 @@ int sd_switch_clock(struct rtsx_chip *chip)
 				retval = mmc_ddr_tuning(chip);
 		}
 
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 	}
 
 	return STATUS_SUCCESS;
@@ -1924,41 +2255,100 @@ static int sd_prepare_reset(struct rtsx_chip *chip)
 	chip->sd_io = 0;
 
 	retval = sd_set_init_para(chip);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, retval);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return retval;
+	}
 
-	RTSX_WRITE_REG(chip, REG_SD_CFG1, 0xFF, 0x40);
+	retval = rtsx_write_register(chip, REG_SD_CFG1, 0xFF, 0x40);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 
-	RTSX_WRITE_REG(chip, CARD_STOP, SD_STOP | SD_CLR_ERR,
-		SD_STOP | SD_CLR_ERR);
+	retval = rtsx_write_register(chip, CARD_STOP, SD_STOP | SD_CLR_ERR,
+				     SD_STOP | SD_CLR_ERR);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 
 	retval = select_card(chip, SD_CARD);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	return STATUS_SUCCESS;
 }
 
 static int sd_pull_ctl_disable(struct rtsx_chip *chip)
 {
+	int retval;
+
 	if (CHECK_PID(chip, 0x5208)) {
-		RTSX_WRITE_REG(chip, CARD_PULL_CTL1, 0xFF,
-			XD_D3_PD | SD_D7_PD | SD_CLK_PD | SD_D5_PD);
-		RTSX_WRITE_REG(chip, CARD_PULL_CTL2, 0xFF,
-			SD_D6_PD | SD_D0_PD | SD_D1_PD | XD_D5_PD);
-		RTSX_WRITE_REG(chip, CARD_PULL_CTL3, 0xFF,
-			SD_D4_PD | XD_CE_PD | XD_CLE_PD | XD_CD_PU);
-		RTSX_WRITE_REG(chip, CARD_PULL_CTL4, 0xFF,
-			XD_RDY_PD | SD_D3_PD | SD_D2_PD | XD_ALE_PD);
-		RTSX_WRITE_REG(chip, CARD_PULL_CTL5, 0xFF,
-			MS_INS_PU | SD_WP_PD | SD_CD_PU | SD_CMD_PD);
-		RTSX_WRITE_REG(chip, CARD_PULL_CTL6, 0xFF, MS_D5_PD | MS_D4_PD);
+		retval = rtsx_write_register(chip, CARD_PULL_CTL1, 0xFF,
+					     XD_D3_PD | SD_D7_PD | SD_CLK_PD | SD_D5_PD);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
+		retval = rtsx_write_register(chip, CARD_PULL_CTL2, 0xFF,
+					     SD_D6_PD | SD_D0_PD | SD_D1_PD | XD_D5_PD);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
+		retval = rtsx_write_register(chip, CARD_PULL_CTL3, 0xFF,
+					     SD_D4_PD | XD_CE_PD | XD_CLE_PD | XD_CD_PU);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
+		retval = rtsx_write_register(chip, CARD_PULL_CTL4, 0xFF,
+					     XD_RDY_PD | SD_D3_PD | SD_D2_PD | XD_ALE_PD);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
+		retval = rtsx_write_register(chip, CARD_PULL_CTL5, 0xFF,
+					     MS_INS_PU | SD_WP_PD | SD_CD_PU | SD_CMD_PD);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
+		retval = rtsx_write_register(chip, CARD_PULL_CTL6, 0xFF,
+					     MS_D5_PD | MS_D4_PD);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
 	} else if (CHECK_PID(chip, 0x5288)) {
 		if (CHECK_BARO_PKG(chip, QFN)) {
-			RTSX_WRITE_REG(chip, CARD_PULL_CTL1, 0xFF, 0x55);
-			RTSX_WRITE_REG(chip, CARD_PULL_CTL2, 0xFF, 0x55);
-			RTSX_WRITE_REG(chip, CARD_PULL_CTL3, 0xFF, 0x4B);
-			RTSX_WRITE_REG(chip, CARD_PULL_CTL4, 0xFF, 0x69);
+			retval = rtsx_write_register(chip, CARD_PULL_CTL1,
+						     0xFF, 0x55);
+			if (retval) {
+				rtsx_trace(chip);
+				return retval;
+			}
+			retval = rtsx_write_register(chip, CARD_PULL_CTL2,
+						     0xFF, 0x55);
+			if (retval) {
+				rtsx_trace(chip);
+				return retval;
+			}
+			retval = rtsx_write_register(chip, CARD_PULL_CTL3,
+						     0xFF, 0x4B);
+			if (retval) {
+				rtsx_trace(chip);
+				return retval;
+			}
+			retval = rtsx_write_register(chip, CARD_PULL_CTL4,
+						     0xFF, 0x69);
+			if (retval) {
+				rtsx_trace(chip);
+				return retval;
+			}
 		}
 	}
 
@@ -1998,8 +2388,10 @@ int sd_pull_ctl_enable(struct rtsx_chip *chip)
 	}
 
 	retval = rtsx_send_cmd(chip, SD_CARD, 100);
-	if (retval < 0)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval < 0) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	return STATUS_SUCCESS;
 }
@@ -2009,29 +2401,41 @@ static int sd_init_power(struct rtsx_chip *chip)
 	int retval;
 
 	retval = sd_power_off_card3v3(chip);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	if (!chip->ft2_fast_mode)
 		wait_timeout(250);
 
 	retval = enable_card_clock(chip, SD_CARD);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	if (chip->asic_code) {
 		retval = sd_pull_ctl_enable(chip);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 	} else {
-		RTSX_WRITE_REG(chip, FPGA_PULL_CTL, FPGA_SD_PULL_CTL_BIT | 0x20,
-			0);
+		retval = rtsx_write_register(chip, FPGA_PULL_CTL,
+					     FPGA_SD_PULL_CTL_BIT | 0x20, 0);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
 	}
 
 	if (!chip->ft2_fast_mode) {
 		retval = card_power_on(chip, SD_CARD);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 
 		wait_timeout(260);
 
@@ -2039,21 +2443,37 @@ static int sd_init_power(struct rtsx_chip *chip)
 		if (chip->ocp_stat & (SD_OC_NOW | SD_OC_EVER)) {
 			dev_dbg(rtsx_dev(chip), "Over current, OCPSTAT is 0x%x\n",
 				chip->ocp_stat);
-			TRACE_RET(chip, STATUS_FAIL);
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		}
 #endif
 	}
 
-	RTSX_WRITE_REG(chip, CARD_OE, SD_OUTPUT_EN, SD_OUTPUT_EN);
+	retval = rtsx_write_register(chip, CARD_OE, SD_OUTPUT_EN,
+				     SD_OUTPUT_EN);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 
 	return STATUS_SUCCESS;
 }
 
 static int sd_dummy_clock(struct rtsx_chip *chip)
 {
-	RTSX_WRITE_REG(chip, REG_SD_CFG3, 0x01, 0x01);
+	int retval;
+
+	retval = rtsx_write_register(chip, REG_SD_CFG3, 0x01, 0x01);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 	wait_timeout(5);
-	RTSX_WRITE_REG(chip, REG_SD_CFG3, 0x01, 0);
+	retval = rtsx_write_register(chip, REG_SD_CFG3, 0x01, 0);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 
 	return STATUS_SUCCESS;
 }
@@ -2085,7 +2505,8 @@ static int sd_read_lba0(struct rtsx_chip *chip)
 		5, 512, 1, bus_width, NULL, 0, 100);
 	if (retval != STATUS_SUCCESS) {
 		rtsx_clear_sd_error(chip);
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	return STATUS_SUCCESS;
@@ -2101,8 +2522,10 @@ static int sd_check_wp_state(struct rtsx_chip *chip)
 
 	retval = sd_send_cmd_get_rsp(chip, APP_CMD,
 			sd_card->sd_addr, SD_RSP_TYPE_R1, NULL, 0);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	cmd[0] = 0x40 | SD_STATUS;
 	cmd[1] = 0;
@@ -2117,7 +2540,8 @@ static int sd_check_wp_state(struct rtsx_chip *chip)
 
 		sd_send_cmd_get_rsp(chip, SEND_STATUS, sd_card->sd_addr,
 				SD_RSP_TYPE_R1, NULL, 0);
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	dev_dbg(rtsx_dev(chip), "ACMD13:\n");
@@ -2141,14 +2565,15 @@ static int sd_check_wp_state(struct rtsx_chip *chip)
 static int reset_sd(struct rtsx_chip *chip)
 {
 	struct sd_info *sd_card = &(chip->sd_card);
-	int retval, i = 0, j = 0, k = 0, hi_cap_flow = 0;
-	int sd_dont_switch = 0;
-	int support_1v8 = 0;
-	int try_sdio = 1;
+	bool hi_cap_flow = false;
+	int retval, i = 0, j = 0, k = 0;
+	bool sd_dont_switch = false;
+	bool support_1v8 = false;
+	bool try_sdio = true;
 	u8 rsp[16];
 	u8 switch_bus_width;
 	u32 voltage = 0;
-	int sd20_mode = 0;
+	bool sd20_mode = false;
 
 	SET_SD(sd_card);
 
@@ -2157,7 +2582,7 @@ Switch_Fail:
 	i = 0;
 	j = 0;
 	k = 0;
-	hi_cap_flow = 0;
+	hi_cap_flow = false;
 
 #ifdef SUPPORT_SD_LOCK
 	if (sd_card->sd_lock_status & SD_UNLOCK_POW_ON)
@@ -2165,12 +2590,16 @@ Switch_Fail:
 #endif
 
 	retval = sd_prepare_reset(chip);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	retval = sd_dummy_clock(chip);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	if (CHK_SDIO_EXIST(chip) && !CHK_SDIO_IGNORED(chip) && try_sdio) {
 		int rty_cnt = 0;
@@ -2178,7 +2607,8 @@ Switch_Fail:
 		for (; rty_cnt < chip->sdio_retry_cnt; rty_cnt++) {
 			if (detect_card_cd(chip, SD_CARD) != STATUS_SUCCESS) {
 				sd_set_err_code(chip, SD_NO_CARD);
-				TRACE_RET(chip, STATUS_FAIL);
+				rtsx_trace(chip);
+				return STATUS_FAIL;
 			}
 
 			retval = sd_send_cmd_get_rsp(chip, IO_SEND_OP_COND, 0,
@@ -2190,7 +2620,8 @@ Switch_Fail:
 					dev_dbg(rtsx_dev(chip), "SD_IO card (Function number: %d)!\n",
 						func_num);
 					chip->sd_io = 1;
-					TRACE_RET(chip, STATUS_FAIL);
+					rtsx_trace(chip);
+					return STATUS_FAIL;
 				}
 
 				break;
@@ -2208,8 +2639,10 @@ Switch_Fail:
 RTY_SD_RST:
 	retval = sd_send_cmd_get_rsp(chip, GO_IDLE_STATE, 0, SD_RSP_TYPE_R0,
 				NULL, 0);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	wait_timeout(20);
 
@@ -2217,7 +2650,7 @@ RTY_SD_RST:
 				SD_RSP_TYPE_R7, rsp, 5);
 	if (retval == STATUS_SUCCESS) {
 		if ((rsp[4] == 0xAA) && ((rsp[3] & 0x0f) == 0x01)) {
-			hi_cap_flow = 1;
+			hi_cap_flow = true;
 			voltage = SUPPORT_VOLTAGE | 0x40000000;
 		}
 	}
@@ -2227,8 +2660,10 @@ RTY_SD_RST:
 
 		retval = sd_send_cmd_get_rsp(chip, GO_IDLE_STATE, 0,
 					SD_RSP_TYPE_R0, NULL, 0);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 
 		wait_timeout(20);
 	}
@@ -2239,14 +2674,17 @@ RTY_SD_RST:
 		if (retval != STATUS_SUCCESS) {
 			if (detect_card_cd(chip, SD_CARD) != STATUS_SUCCESS) {
 				sd_set_err_code(chip, SD_NO_CARD);
-				TRACE_RET(chip, STATUS_FAIL);
+				rtsx_trace(chip);
+				return STATUS_FAIL;
 			}
 
 			j++;
 			if (j < 3)
 				goto RTY_SD_RST;
-			else
-				TRACE_RET(chip, STATUS_FAIL);
+			else {
+				rtsx_trace(chip);
+				return STATUS_FAIL;
+			}
 		}
 
 		retval = sd_send_cmd_get_rsp(chip, SD_APP_OP_COND, voltage,
@@ -2255,16 +2693,20 @@ RTY_SD_RST:
 			k++;
 			if (k < 3)
 				goto RTY_SD_RST;
-			else
-				TRACE_RET(chip, STATUS_FAIL);
+			else {
+				rtsx_trace(chip);
+				return STATUS_FAIL;
+			}
 		}
 
 		i++;
 		wait_timeout(20);
 	} while (!(rsp[1] & 0x80) && (i < 255));
 
-	if (i == 255)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (i == 255) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	if (hi_cap_flow) {
 		if (rsp[1] & 0x40)
@@ -2272,29 +2714,35 @@ RTY_SD_RST:
 		else
 			CLR_SD_HCXC(sd_card);
 
-		support_1v8 = 0;
+		support_1v8 = false;
 	} else {
 		CLR_SD_HCXC(sd_card);
-		support_1v8 = 0;
+		support_1v8 = false;
 	}
 	dev_dbg(rtsx_dev(chip), "support_1v8 = %d\n", support_1v8);
 
 	if (support_1v8) {
 		retval = sd_voltage_switch(chip);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 	}
 
 	retval = sd_send_cmd_get_rsp(chip, ALL_SEND_CID, 0, SD_RSP_TYPE_R2,
 				NULL, 0);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	for (i = 0; i < 3; i++) {
 		retval = sd_send_cmd_get_rsp(chip, SEND_RELATIVE_ADDR, 0,
 					SD_RSP_TYPE_R6, rsp, 5);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 
 		sd_card->sd_addr = (u32)rsp[1] << 24;
 		sd_card->sd_addr += (u32)rsp[2] << 16;
@@ -2304,18 +2752,24 @@ RTY_SD_RST:
 	}
 
 	retval = sd_check_csd(chip, 1);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	retval = sd_select_card(chip, 1);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 #ifdef SUPPORT_SD_LOCK
 SD_UNLOCK_ENTRY:
 	retval = sd_update_lock_status(chip);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	if (sd_card->sd_lock_status & SD_LOCKED) {
 		sd_card->sd_lock_status |= (SD_LOCK_1BIT_MODE | SD_PWD_EXIST);
@@ -2327,24 +2781,32 @@ SD_UNLOCK_ENTRY:
 
 	retval = sd_send_cmd_get_rsp(chip, APP_CMD, sd_card->sd_addr,
 				SD_RSP_TYPE_R1, NULL, 0);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	retval = sd_send_cmd_get_rsp(chip, SET_CLR_CARD_DETECT, 0,
 				SD_RSP_TYPE_R1, NULL, 0);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	if (support_1v8) {
 		retval = sd_send_cmd_get_rsp(chip, APP_CMD, sd_card->sd_addr,
 					SD_RSP_TYPE_R1, NULL, 0);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 
 		retval = sd_send_cmd_get_rsp(chip, SET_BUS_WIDTH, 2,
 					SD_RSP_TYPE_R1, NULL, 0);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 
 		switch_bus_width = SD_BUS_WIDTH_4;
 	} else {
@@ -2353,15 +2815,19 @@ SD_UNLOCK_ENTRY:
 
 	retval = sd_send_cmd_get_rsp(chip, SET_BLOCKLEN, 0x200, SD_RSP_TYPE_R1,
 				NULL, 0);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	retval = sd_set_clock_divider(chip, SD_CLK_DIVIDE_0);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	if (!(sd_card->raw_csd[4] & 0x40))
-		sd_dont_switch = 1;
+		sd_dont_switch = true;
 
 	if (!sd_dont_switch) {
 		if (sd20_mode) {
@@ -2378,16 +2844,16 @@ SD_UNLOCK_ENTRY:
 			retval = sd_switch_function(chip, switch_bus_width);
 			if (retval != STATUS_SUCCESS) {
 				sd_init_power(chip);
-				sd_dont_switch = 1;
-				try_sdio = 0;
+				sd_dont_switch = true;
+				try_sdio = false;
 
 				goto Switch_Fail;
 			}
 		} else {
 			if (support_1v8) {
 				sd_init_power(chip);
-				sd_dont_switch = 1;
-				try_sdio = 0;
+				sd_dont_switch = true;
+				try_sdio = false;
 
 				goto Switch_Fail;
 			}
@@ -2397,13 +2863,17 @@ SD_UNLOCK_ENTRY:
 	if (!support_1v8) {
 		retval = sd_send_cmd_get_rsp(chip, APP_CMD, sd_card->sd_addr,
 					SD_RSP_TYPE_R1, NULL, 0);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 
 		retval = sd_send_cmd_get_rsp(chip, SET_BUS_WIDTH, 2,
 					SD_RSP_TYPE_R1, NULL, 0);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 	}
 
 #ifdef SUPPORT_SD_LOCK
@@ -2413,12 +2883,18 @@ SD_UNLOCK_ENTRY:
 	if (!sd20_mode && CHK_SD30_SPEED(sd_card)) {
 		int read_lba0 = 1;
 
-		RTSX_WRITE_REG(chip, SD30_DRIVE_SEL, 0x07,
-			chip->sd30_drive_sel_1v8);
+		retval = rtsx_write_register(chip, SD30_DRIVE_SEL, 0x07,
+					     chip->sd30_drive_sel_1v8);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
 
 		retval = sd_set_init_para(chip);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 
 		if (CHK_SD_DDR50(sd_card))
 			retval = sd_ddr_tuning(chip);
@@ -2427,14 +2903,17 @@ SD_UNLOCK_ENTRY:
 
 		if (retval != STATUS_SUCCESS) {
 			if (sd20_mode) {
-				TRACE_RET(chip, STATUS_FAIL);
+				rtsx_trace(chip);
+				return STATUS_FAIL;
 			} else {
 				retval = sd_init_power(chip);
-				if (retval != STATUS_SUCCESS)
-					TRACE_RET(chip, STATUS_FAIL);
+				if (retval != STATUS_SUCCESS) {
+					rtsx_trace(chip);
+					return STATUS_FAIL;
+				}
 
-				try_sdio = 0;
-				sd20_mode = 1;
+				try_sdio = false;
+				sd20_mode = true;
 				goto Switch_Fail;
 			}
 		}
@@ -2452,14 +2931,17 @@ SD_UNLOCK_ENTRY:
 			retval = sd_read_lba0(chip);
 			if (retval != STATUS_SUCCESS) {
 				if (sd20_mode) {
-					TRACE_RET(chip, STATUS_FAIL);
+					rtsx_trace(chip);
+					return STATUS_FAIL;
 				} else {
 					retval = sd_init_power(chip);
-					if (retval != STATUS_SUCCESS)
-						TRACE_RET(chip, STATUS_FAIL);
+					if (retval != STATUS_SUCCESS) {
+						rtsx_trace(chip);
+						return STATUS_FAIL;
+					}
 
-					try_sdio = 0;
-					sd20_mode = 1;
+					try_sdio = false;
+					sd20_mode = true;
 					goto Switch_Fail;
 				}
 			}
@@ -2467,15 +2949,27 @@ SD_UNLOCK_ENTRY:
 	}
 
 	retval = sd_check_wp_state(chip);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	chip->card_bus_width[chip->card2lun[SD_CARD]] = 4;
 
 #ifdef SUPPORT_SD_LOCK
 	if (sd_card->sd_lock_status & SD_UNLOCK_POW_ON) {
-		RTSX_WRITE_REG(chip, REG_SD_BLOCK_CNT_H, 0xFF, 0x02);
-		RTSX_WRITE_REG(chip, REG_SD_BLOCK_CNT_L, 0xFF, 0x00);
+		retval = rtsx_write_register(chip, REG_SD_BLOCK_CNT_H, 0xFF,
+					     0x02);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
+		retval = rtsx_write_register(chip, REG_SD_BLOCK_CNT_L, 0xFF,
+					     0x00);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
 	}
 #endif
 
@@ -2493,8 +2987,10 @@ static int mmc_test_switch_bus(struct rtsx_chip *chip, u8 width)
 
 	retval = sd_send_cmd_get_rsp(chip, BUSTEST_W, 0, SD_RSP_TYPE_R1, NULL,
 				0);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, SWITCH_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return SWITCH_FAIL;
+	}
 
 	if (width == MMC_8BIT_BUS) {
 		buf[0] = 0x55;
@@ -2510,20 +3006,25 @@ static int mmc_test_switch_bus(struct rtsx_chip *chip, u8 width)
 	}
 
 	retval = rtsx_write_register(chip, REG_SD_CFG3, 0x02, 0x02);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, SWITCH_ERR);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return SWITCH_ERR;
+	}
 
 	retval = sd_write_data(chip, SD_TM_AUTO_WRITE_3,
 			NULL, 0, byte_cnt, 1, bus_width, buf, len, 100);
 	if (retval != STATUS_SUCCESS) {
 		rtsx_clear_sd_error(chip);
 		rtsx_write_register(chip, REG_SD_CFG3, 0x02, 0);
-		TRACE_RET(chip, SWITCH_ERR);
+		rtsx_trace(chip);
+		return SWITCH_ERR;
 	}
 
 	retval = rtsx_write_register(chip, REG_SD_CFG3, 0x02, 0);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, SWITCH_ERR);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return SWITCH_ERR;
+	}
 
 	dev_dbg(rtsx_dev(chip), "SD/MMC CMD %d\n", BUSTEST_R);
 
@@ -2558,7 +3059,8 @@ static int mmc_test_switch_bus(struct rtsx_chip *chip, u8 width)
 	retval = rtsx_send_cmd(chip, SD_CARD, 100);
 	if (retval < 0) {
 		rtsx_clear_sd_error(chip);
-		TRACE_RET(chip, SWITCH_ERR);
+		rtsx_trace(chip);
+		return SWITCH_ERR;
 	}
 
 	ptr = rtsx_get_cmd_data(chip) + 1;
@@ -2600,11 +3102,12 @@ static int mmc_test_switch_bus(struct rtsx_chip *chip, u8 width)
 		}
 	}
 
-	TRACE_RET(chip, SWITCH_FAIL);
+	rtsx_trace(chip);
+	return SWITCH_FAIL;
 }
 
 
-static int mmc_switch_timing_bus(struct rtsx_chip *chip, int switch_ddr)
+static int mmc_switch_timing_bus(struct rtsx_chip *chip, bool switch_ddr)
 {
 	struct sd_info *sd_card = &(chip->sd_card);
 	int retval;
@@ -2651,14 +3154,16 @@ static int mmc_switch_timing_bus(struct rtsx_chip *chip, int switch_ddr)
 			sd_send_cmd_get_rsp(chip, SEND_STATUS, sd_card->sd_addr,
 					SD_RSP_TYPE_R1, NULL, 0);
 		}
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	ptr = rtsx_get_cmd_data(chip);
 	if (ptr[0] & SD_TRANSFER_ERR) {
 		sd_send_cmd_get_rsp(chip, SEND_STATUS, sd_card->sd_addr,
 				SD_RSP_TYPE_R1, NULL, 0);
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	if (CHK_MMC_SECTOR_MODE(sd_card)) {
@@ -2690,8 +3195,10 @@ static int mmc_switch_timing_bus(struct rtsx_chip *chip, int switch_ddr)
 
 	sd_choose_proper_clock(chip);
 	retval = switch_clock(chip, sd_card->sd_clock);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	/* Test Bus Procedure */
 	retval = mmc_test_switch_bus(chip, MMC_8BIT_BUS);
@@ -2713,10 +3220,12 @@ static int mmc_switch_timing_bus(struct rtsx_chip *chip, int switch_ddr)
 			CLR_MMC_8BIT(sd_card);
 			CLR_MMC_4BIT(sd_card);
 		} else {
-			TRACE_RET(chip, STATUS_FAIL);
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		}
 	} else {
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	return STATUS_SUCCESS;
@@ -2727,7 +3236,7 @@ static int reset_mmc(struct rtsx_chip *chip)
 {
 	struct sd_info *sd_card = &(chip->sd_card);
 	int retval, i = 0, j = 0, k = 0;
-	int switch_ddr = 1;
+	bool switch_ddr = true;
 	u8 rsp[16];
 	u8 spec_ver = 0;
 	u32 temp;
@@ -2739,21 +3248,26 @@ static int reset_mmc(struct rtsx_chip *chip)
 
 Switch_Fail:
 	retval = sd_prepare_reset(chip);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, retval);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return retval;
+	}
 
 	SET_MMC(sd_card);
 
 RTY_MMC_RST:
 	retval = sd_send_cmd_get_rsp(chip, GO_IDLE_STATE, 0, SD_RSP_TYPE_R0,
 				NULL, 0);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	do {
 		if (detect_card_cd(chip, SD_CARD) != STATUS_SUCCESS) {
 			sd_set_err_code(chip, SD_NO_CARD);
-			TRACE_RET(chip, STATUS_FAIL);
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		}
 
 		retval = sd_send_cmd_get_rsp(chip, SEND_OP_COND,
@@ -2767,7 +3281,8 @@ RTY_MMC_RST:
 					sd_clr_err_code(chip);
 					goto RTY_MMC_RST;
 				} else {
-					TRACE_RET(chip, STATUS_FAIL);
+					rtsx_trace(chip);
+					return STATUS_FAIL;
 				}
 			} else {
 				j++;
@@ -2775,7 +3290,8 @@ RTY_MMC_RST:
 					sd_clr_err_code(chip);
 					goto RTY_MMC_RST;
 				} else {
-					TRACE_RET(chip, STATUS_FAIL);
+					rtsx_trace(chip);
+					return STATUS_FAIL;
 				}
 			}
 		}
@@ -2784,8 +3300,10 @@ RTY_MMC_RST:
 		i++;
 	} while (!(rsp[1] & 0x80) && (i < 255));
 
-	if (i == 255)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (i == 255) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	if ((rsp[1] & 0x60) == 0x40)
 		SET_MMC_SECTOR_MODE(sd_card);
@@ -2794,40 +3312,54 @@ RTY_MMC_RST:
 
 	retval = sd_send_cmd_get_rsp(chip, ALL_SEND_CID, 0, SD_RSP_TYPE_R2,
 				NULL, 0);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	sd_card->sd_addr = 0x00100000;
 	retval = sd_send_cmd_get_rsp(chip, SET_RELATIVE_ADDR, sd_card->sd_addr,
 				SD_RSP_TYPE_R6, rsp, 5);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	retval = sd_check_csd(chip, 1);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	spec_ver = (sd_card->raw_csd[0] & 0x3C) >> 2;
 
 	retval = sd_select_card(chip, 1);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	retval = sd_send_cmd_get_rsp(chip, SET_BLOCKLEN, 0x200, SD_RSP_TYPE_R1,
 				NULL, 0);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 #ifdef SUPPORT_SD_LOCK
 MMC_UNLOCK_ENTRY:
 	retval = sd_update_lock_status(chip);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 #endif
 
 	retval = sd_set_clock_divider(chip, SD_CLK_DIVIDE_0);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	chip->card_bus_width[chip->card2lun[SD_CARD]] = 1;
 
@@ -2837,29 +3369,39 @@ MMC_UNLOCK_ENTRY:
 			retval = mmc_switch_timing_bus(chip, switch_ddr);
 			if (retval != STATUS_SUCCESS) {
 				retval = sd_init_power(chip);
-				if (retval != STATUS_SUCCESS)
-					TRACE_RET(chip, STATUS_FAIL);
+				if (retval != STATUS_SUCCESS) {
+					rtsx_trace(chip);
+					return STATUS_FAIL;
+				}
 				sd_card->mmc_dont_switch_bus = 1;
-				TRACE_GOTO(chip, Switch_Fail);
+				rtsx_trace(chip);
+				goto Switch_Fail;
 			}
 		}
 
-		if (CHK_MMC_SECTOR_MODE(sd_card) && (sd_card->capacity == 0))
-			TRACE_RET(chip, STATUS_FAIL);
+		if (CHK_MMC_SECTOR_MODE(sd_card) && (sd_card->capacity == 0)) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 
 		if (switch_ddr && CHK_MMC_DDR52(sd_card)) {
 			retval = sd_set_init_para(chip);
-			if (retval != STATUS_SUCCESS)
-				TRACE_RET(chip, STATUS_FAIL);
+			if (retval != STATUS_SUCCESS) {
+				rtsx_trace(chip);
+				return STATUS_FAIL;
+			}
 
 			retval = mmc_ddr_tuning(chip);
 			if (retval != STATUS_SUCCESS) {
 				retval = sd_init_power(chip);
-				if (retval != STATUS_SUCCESS)
-					TRACE_RET(chip, STATUS_FAIL);
+				if (retval != STATUS_SUCCESS) {
+					rtsx_trace(chip);
+					return STATUS_FAIL;
+				}
 
-				switch_ddr = 0;
-				TRACE_GOTO(chip, Switch_Fail);
+				switch_ddr = false;
+				rtsx_trace(chip);
+				goto Switch_Fail;
 			}
 
 			retval = sd_wait_state_data_ready(chip, 0x08, 1, 1000);
@@ -2867,11 +3409,14 @@ MMC_UNLOCK_ENTRY:
 				retval = sd_read_lba0(chip);
 				if (retval != STATUS_SUCCESS) {
 					retval = sd_init_power(chip);
-					if (retval != STATUS_SUCCESS)
-						TRACE_RET(chip, STATUS_FAIL);
+					if (retval != STATUS_SUCCESS) {
+						rtsx_trace(chip);
+						return STATUS_FAIL;
+					}
 
-					switch_ddr = 0;
-					TRACE_GOTO(chip, Switch_Fail);
+					switch_ddr = false;
+					rtsx_trace(chip);
+					goto Switch_Fail;
 				}
 			}
 		}
@@ -2879,8 +3424,18 @@ MMC_UNLOCK_ENTRY:
 
 #ifdef SUPPORT_SD_LOCK
 	if (sd_card->sd_lock_status & SD_UNLOCK_POW_ON) {
-		RTSX_WRITE_REG(chip, REG_SD_BLOCK_CNT_H, 0xFF, 0x02);
-		RTSX_WRITE_REG(chip, REG_SD_BLOCK_CNT_L, 0xFF, 0x00);
+		retval = rtsx_write_register(chip, REG_SD_BLOCK_CNT_H, 0xFF,
+					     0x02);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
+		retval = rtsx_write_register(chip, REG_SD_BLOCK_CNT_L, 0xFF,
+					     0x00);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
 	}
 #endif
 
@@ -2902,71 +3457,103 @@ int reset_sd_card(struct rtsx_chip *chip)
 	chip->capacity[chip->card2lun[SD_CARD]] = 0;
 
 	retval = enable_card_clock(chip, SD_CARD);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	if (chip->ignore_sd && CHK_SDIO_EXIST(chip) &&
 		!CHK_SDIO_IGNORED(chip)) {
 		if (chip->asic_code) {
 			retval = sd_pull_ctl_enable(chip);
-			if (retval != STATUS_SUCCESS)
-				TRACE_RET(chip, STATUS_FAIL);
+			if (retval != STATUS_SUCCESS) {
+				rtsx_trace(chip);
+				return STATUS_FAIL;
+			}
 		} else {
 			retval = rtsx_write_register(chip, FPGA_PULL_CTL,
 						FPGA_SD_PULL_CTL_BIT | 0x20, 0);
-			if (retval != STATUS_SUCCESS)
-				TRACE_RET(chip, STATUS_FAIL);
+			if (retval != STATUS_SUCCESS) {
+				rtsx_trace(chip);
+				return STATUS_FAIL;
+			}
 		}
 		retval = card_share_mode(chip, SD_CARD);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 
 		chip->sd_io = 1;
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	retval = sd_init_power(chip);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	if (chip->sd_ctl & RESET_MMC_FIRST) {
 		retval = reset_mmc(chip);
 		if (retval != STATUS_SUCCESS) {
-			if (sd_check_err_code(chip, SD_NO_CARD))
-				TRACE_RET(chip, STATUS_FAIL);
+			if (sd_check_err_code(chip, SD_NO_CARD)) {
+				rtsx_trace(chip);
+				return STATUS_FAIL;
+			}
 
 			retval = reset_sd(chip);
-			if (retval != STATUS_SUCCESS)
-				TRACE_RET(chip, STATUS_FAIL);
+			if (retval != STATUS_SUCCESS) {
+				rtsx_trace(chip);
+				return STATUS_FAIL;
+			}
 		}
 	} else {
 		retval = reset_sd(chip);
 		if (retval != STATUS_SUCCESS) {
-			if (sd_check_err_code(chip, SD_NO_CARD))
-				TRACE_RET(chip, STATUS_FAIL);
+			if (sd_check_err_code(chip, SD_NO_CARD)) {
+				rtsx_trace(chip);
+				return STATUS_FAIL;
+			}
 
 			if (chip->sd_io) {
-				TRACE_RET(chip, STATUS_FAIL);
+				rtsx_trace(chip);
+				return STATUS_FAIL;
 			} else {
 				retval = reset_mmc(chip);
-				if (retval != STATUS_SUCCESS)
-					TRACE_RET(chip, STATUS_FAIL);
+				if (retval != STATUS_SUCCESS) {
+					rtsx_trace(chip);
+					return STATUS_FAIL;
+				}
 			}
 		}
 	}
 
 	retval = sd_set_clock_divider(chip, SD_CLK_DIVIDE_0);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
-	RTSX_WRITE_REG(chip, REG_SD_BYTE_CNT_L, 0xFF, 0);
-	RTSX_WRITE_REG(chip, REG_SD_BYTE_CNT_H, 0xFF, 2);
+	retval = rtsx_write_register(chip, REG_SD_BYTE_CNT_L, 0xFF, 0);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
+	retval = rtsx_write_register(chip, REG_SD_BYTE_CNT_H, 0xFF, 2);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 
 	chip->capacity[chip->card2lun[SD_CARD]] = sd_card->capacity;
 
 	retval = sd_set_init_para(chip);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	dev_dbg(rtsx_dev(chip), "sd_card->sd_type = 0x%x\n", sd_card->sd_type);
 
@@ -2992,29 +3579,47 @@ static int reset_mmc_only(struct rtsx_chip *chip)
 	chip->capacity[chip->card2lun[SD_CARD]] = sd_card->capacity = 0;
 
 	retval = enable_card_clock(chip, SD_CARD);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	retval = sd_init_power(chip);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	retval = reset_mmc(chip);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	retval = sd_set_clock_divider(chip, SD_CLK_DIVIDE_0);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
-	RTSX_WRITE_REG(chip, REG_SD_BYTE_CNT_L, 0xFF, 0);
-	RTSX_WRITE_REG(chip, REG_SD_BYTE_CNT_H, 0xFF, 2);
+	retval = rtsx_write_register(chip, REG_SD_BYTE_CNT_L, 0xFF, 0);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
+	retval = rtsx_write_register(chip, REG_SD_BYTE_CNT_H, 0xFF, 2);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 
 	chip->capacity[chip->card2lun[SD_CARD]] = sd_card->capacity;
 
 	retval = sd_set_init_para(chip);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	dev_dbg(rtsx_dev(chip), "In reset_mmc_only, sd_card->sd_type = 0x%x\n",
 		sd_card->sd_type);
@@ -3032,15 +3637,18 @@ static int wait_data_buf_ready(struct rtsx_chip *chip)
 	for (i = 0; i < WAIT_DATA_READY_RTY_CNT; i++) {
 		if (detect_card_cd(chip, SD_CARD) != STATUS_SUCCESS) {
 			sd_set_err_code(chip, SD_NO_CARD);
-			TRACE_RET(chip, STATUS_FAIL);
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		}
 
 		sd_card->sd_data_buf_ready = 0;
 
 		retval = sd_send_cmd_get_rsp(chip, SEND_STATUS,
 				sd_card->sd_addr, SD_RSP_TYPE_R1, NULL, 0);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 
 		if (sd_card->sd_data_buf_ready) {
 			return sd_send_cmd_get_rsp(chip, SEND_STATUS,
@@ -3050,7 +3658,8 @@ static int wait_data_buf_ready(struct rtsx_chip *chip)
 
 	sd_set_err_code(chip, SD_TO_ERR);
 
-	TRACE_RET(chip, STATUS_FAIL);
+	rtsx_trace(chip);
+	return STATUS_FAIL;
 }
 
 void sd_stop_seq_mode(struct rtsx_chip *chip)
@@ -3118,8 +3727,10 @@ static inline int sd_auto_tune_clock(struct rtsx_chip *chip)
 	}
 
 	retval = sd_switch_clock(chip);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	return STATUS_SUCCESS;
 }
@@ -3156,7 +3767,8 @@ int sd_rw(struct scsi_cmnd *srb, struct rtsx_chip *chip, u32 start_sector,
 			chip->card_fail |= SD_CARD;
 			chip->capacity[chip->card2lun[SD_CARD]] = 0;
 			chip->rw_need_retry = 1;
-			TRACE_RET(chip, STATUS_FAIL);
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		}
 	}
 
@@ -3170,7 +3782,8 @@ int sd_rw(struct scsi_cmnd *srb, struct rtsx_chip *chip, u32 start_sector,
 	retval = sd_switch_clock(chip);
 	if (retval != STATUS_SUCCESS) {
 		sd_set_err_code(chip, SD_IO_ERR);
-		TRACE_GOTO(chip, RW_FAIL);
+		rtsx_trace(chip);
+		goto RW_FAIL;
 	}
 
 	if (sd_card->seq_mode &&
@@ -3191,7 +3804,8 @@ int sd_rw(struct scsi_cmnd *srb, struct rtsx_chip *chip, u32 start_sector,
 		if (retval != STATUS_SUCCESS) {
 			chip->rw_need_retry = 1;
 			sd_set_err_code(chip, SD_STS_ERR);
-			TRACE_GOTO(chip, RW_FAIL);
+			rtsx_trace(chip);
+			goto RW_FAIL;
 		}
 
 		sd_card->seq_mode = 0;
@@ -3199,7 +3813,8 @@ int sd_rw(struct scsi_cmnd *srb, struct rtsx_chip *chip, u32 start_sector,
 		retval = rtsx_write_register(chip, RBCTL, RB_FLUSH, RB_FLUSH);
 		if (retval != STATUS_SUCCESS) {
 			sd_set_err_code(chip, SD_IO_ERR);
-			TRACE_GOTO(chip, RW_FAIL);
+			rtsx_trace(chip);
+			goto RW_FAIL;
 		}
 
 		if ((sd_card->pre_sec_cnt < 0x80)
@@ -3290,21 +3905,24 @@ int sd_rw(struct scsi_cmnd *srb, struct rtsx_chip *chip, u32 start_sector,
 
 				chip->rw_need_retry = 1;
 				sd_set_err_code(chip, SD_TO_ERR);
-				TRACE_GOTO(chip, RW_FAIL);
+				rtsx_trace(chip);
+				goto RW_FAIL;
 			}
 
 			retval = wait_data_buf_ready(chip);
 			if (retval != STATUS_SUCCESS) {
 				chip->rw_need_retry = 1;
 				sd_set_err_code(chip, SD_TO_ERR);
-				TRACE_GOTO(chip, RW_FAIL);
+				rtsx_trace(chip);
+				goto RW_FAIL;
 			}
 
 			retval = sd_send_cmd_get_rsp(chip, WRITE_MULTIPLE_BLOCK,
 					data_addr, SD_RSP_TYPE_R1, NULL, 0);
 			if (retval != STATUS_SUCCESS) {
 				chip->rw_need_retry = 1;
-				TRACE_GOTO(chip, RW_FAIL);
+				rtsx_trace(chip);
+				goto RW_FAIL;
 			}
 
 			rtsx_init_cmd(chip);
@@ -3348,7 +3966,8 @@ int sd_rw(struct scsi_cmnd *srb, struct rtsx_chip *chip, u32 start_sector,
 		if (detect_card_cd(chip, SD_CARD) != STATUS_SUCCESS) {
 			chip->rw_need_retry = 0;
 			dev_dbg(rtsx_dev(chip), "No card exist, exit sd_rw\n");
-			TRACE_RET(chip, STATUS_FAIL);
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		}
 
 		chip->rw_need_retry = 1;
@@ -3357,21 +3976,25 @@ int sd_rw(struct scsi_cmnd *srb, struct rtsx_chip *chip, u32 start_sector,
 					SD_RSP_TYPE_R1b, NULL, 0);
 		if (retval != STATUS_SUCCESS) {
 			sd_set_err_code(chip, SD_STS_ERR);
-			TRACE_GOTO(chip, RW_FAIL);
+			rtsx_trace(chip);
+			goto RW_FAIL;
 		}
 
 		if (stat & (SD_CRC7_ERR | SD_CRC16_ERR | SD_CRC_WRITE_ERR)) {
 			dev_dbg(rtsx_dev(chip), "SD CRC error, tune clock!\n");
 			sd_set_err_code(chip, SD_CRC_ERR);
-			TRACE_GOTO(chip, RW_FAIL);
+			rtsx_trace(chip);
+			goto RW_FAIL;
 		}
 
 		if (err == STATUS_TIMEDOUT) {
 			sd_set_err_code(chip, SD_TO_ERR);
-			TRACE_GOTO(chip, RW_FAIL);
+			rtsx_trace(chip);
+			goto RW_FAIL;
 		}
 
-		TRACE_RET(chip, err);
+		rtsx_trace(chip);
+		return err;
 	}
 
 	sd_card->pre_sec_addr = start_sector;
@@ -3386,7 +4009,8 @@ RW_FAIL:
 	if (detect_card_cd(chip, SD_CARD) != STATUS_SUCCESS) {
 		chip->rw_need_retry = 0;
 		dev_dbg(rtsx_dev(chip), "No card exist, exit sd_rw\n");
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	if (sd_check_err_code(chip, SD_CRC_ERR)) {
@@ -3407,7 +4031,8 @@ RW_FAIL:
 		}
 	}
 
-	TRACE_RET(chip, STATUS_FAIL);
+	rtsx_trace(chip);
+	return STATUS_FAIL;
 }
 
 #ifdef SUPPORT_CPRM
@@ -3417,7 +4042,7 @@ int soft_reset_sd_card(struct rtsx_chip *chip)
 }
 
 int ext_sd_send_cmd_get_rsp(struct rtsx_chip *chip, u8 cmd_idx,
-		u32 arg, u8 rsp_type, u8 *rsp, int rsp_len, int special_check)
+		u32 arg, u8 rsp_type, u8 *rsp, int rsp_len, bool special_check)
 {
 	int retval;
 	int timeout = 100;
@@ -3473,13 +4098,16 @@ RTY_SEND_CMD:
 
 			if (rsp_type & SD_WAIT_BUSY_END) {
 				retval = sd_check_data0_status(chip);
-				if (retval != STATUS_SUCCESS)
-					TRACE_RET(chip, retval);
+				if (retval != STATUS_SUCCESS) {
+					rtsx_trace(chip);
+					return retval;
+				}
 			} else {
 				sd_set_err_code(chip, SD_TO_ERR);
 			}
 		}
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	if (rsp_type == SD_RSP_TYPE_R0)
@@ -3489,14 +4117,16 @@ RTY_SEND_CMD:
 
 	if ((ptr[0] & 0xC0) != 0) {
 		sd_set_err_code(chip, SD_STS_ERR);
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	if (!(rsp_type & SD_NO_CHECK_CRC7)) {
 		if (ptr[stat_idx] & SD_CRC7_ERR) {
 			if (cmd_idx == WRITE_MULTIPLE_BLOCK) {
 				sd_set_err_code(chip, SD_CRC_ERR);
-				TRACE_RET(chip, STATUS_FAIL);
+				rtsx_trace(chip);
+				return STATUS_FAIL;
 			}
 			if (rty_cnt < SD_MAX_RETRY_COUNT) {
 				wait_timeout(20);
@@ -3504,16 +4134,19 @@ RTY_SEND_CMD:
 				goto RTY_SEND_CMD;
 			} else {
 				sd_set_err_code(chip, SD_CRC_ERR);
-				TRACE_RET(chip, STATUS_FAIL);
+				rtsx_trace(chip);
+				return STATUS_FAIL;
 			}
 		}
 	}
 
 	if ((cmd_idx == SELECT_CARD) || (cmd_idx == APP_CMD) ||
 		(cmd_idx == SEND_STATUS) || (cmd_idx == STOP_TRANSMISSION)) {
-		if ((cmd_idx != STOP_TRANSMISSION) && (special_check == 0)) {
-			if (ptr[1] & 0x80)
-				TRACE_RET(chip, STATUS_FAIL);
+		if ((cmd_idx != STOP_TRANSMISSION) && !special_check) {
+			if (ptr[1] & 0x80) {
+				rtsx_trace(chip);
+				return STATUS_FAIL;
+			}
 		}
 #ifdef SUPPORT_SD_LOCK
 		if (ptr[1] & 0x7D)
@@ -3521,19 +4154,26 @@ RTY_SEND_CMD:
 		if (ptr[1] & 0x7F)
 #endif
 		{
-			TRACE_RET(chip, STATUS_FAIL);
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
+		if (ptr[2] & 0xF8) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		}
-		if (ptr[2] & 0xF8)
-			TRACE_RET(chip, STATUS_FAIL);
 
 		if (cmd_idx == SELECT_CARD) {
 			if (rsp_type == SD_RSP_TYPE_R2) {
-				if ((ptr[3] & 0x1E) != 0x04)
-					TRACE_RET(chip, STATUS_FAIL);
+				if ((ptr[3] & 0x1E) != 0x04) {
+					rtsx_trace(chip);
+					return STATUS_FAIL;
+				}
 
 			} else if (rsp_type == SD_RSP_TYPE_R0) {
-				if ((ptr[3] & 0x1E) != 0x03)
-					TRACE_RET(chip, STATUS_FAIL);
+				if ((ptr[3] & 0x1E) != 0x03) {
+					rtsx_trace(chip);
+					return STATUS_FAIL;
+				}
 			}
 		}
 	}
@@ -3570,8 +4210,10 @@ int ext_sd_get_rsp(struct rtsx_chip *chip, int len, u8 *rsp, u8 rsp_type)
 	rtsx_add_cmd(chip, READ_REG_CMD, REG_SD_CMD5, 0xFF, 0);
 
 	retval = rtsx_send_cmd(chip, SD_CARD, 100);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	if (rsp) {
 		int min_len = (rsp_len < len) ? rsp_len : len;
@@ -3617,7 +4259,8 @@ int sd_pass_thru_mode(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	if (!(CHK_BIT(chip->lun_mc, lun))) {
 		SET_BIT(chip->lun_mc, lun);
 		set_sense_type(chip, lun, SENSE_TYPE_MEDIA_CHANGE);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 
 	if ((0x53 != srb->cmnd[2]) || (0x44 != srb->cmnd[3]) ||
@@ -3625,7 +4268,8 @@ int sd_pass_thru_mode(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 		(0x61 != srb->cmnd[6]) || (0x72 != srb->cmnd[7]) ||
 		(0x64 != srb->cmnd[8])) {
 		set_sense_type(chip, lun, SENSE_TYPE_MEDIA_INVALID_CMD_FIELD);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 
 	switch (srb->cmnd[1] & 0x0F) {
@@ -3639,7 +4283,8 @@ int sd_pass_thru_mode(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 
 	default:
 		set_sense_type(chip, lun, SENSE_TYPE_MEDIA_INVALID_CMD_FIELD);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 
 	buf[5] = (1 == CHK_SD(sd_card)) ?  0x01 : 0x02;
@@ -3702,30 +4347,34 @@ int sd_execute_no_data(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	unsigned int lun = SCSI_LUN(srb);
 	int retval, rsp_len;
 	u8 cmd_idx, rsp_type;
-	u8 standby = 0, acmd = 0;
+	bool standby = false, acmd = false;
 	u32 arg;
 
 	if (!sd_card->sd_pass_thru_en) {
 		set_sense_type(chip, lun, SENSE_TYPE_MEDIA_INVALID_CMD_FIELD);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 
 	retval = sd_switch_clock(chip);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, TRANSPORT_FAILED);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
+	}
 
 	if (sd_card->pre_cmd_err) {
 		sd_card->pre_cmd_err = 0;
 		set_sense_type(chip, lun, SENSE_TYPE_MEDIA_CHANGE);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 
 	cmd_idx = srb->cmnd[2] & 0x3F;
 	if (srb->cmnd[1] & 0x02)
-		standby = 1;
+		standby = true;
 
 	if (srb->cmnd[1] & 0x01)
-		acmd = 1;
+		acmd = true;
 
 	arg = ((u32)srb->cmnd[3] << 24) | ((u32)srb->cmnd[4] << 16) |
 		((u32)srb->cmnd[5] << 8) | srb->cmnd[6];
@@ -3733,64 +4382,83 @@ int sd_execute_no_data(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	retval = get_rsp_type(srb, &rsp_type, &rsp_len);
 	if (retval != STATUS_SUCCESS) {
 		set_sense_type(chip, lun, SENSE_TYPE_MEDIA_INVALID_CMD_FIELD);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 	sd_card->last_rsp_type = rsp_type;
 
 	retval = sd_switch_clock(chip);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, TRANSPORT_FAILED);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
+	}
 
 #ifdef SUPPORT_SD_LOCK
 	if ((sd_card->sd_lock_status & SD_LOCK_1BIT_MODE) == 0) {
 		if (CHK_MMC_8BIT(sd_card)) {
 			retval = rtsx_write_register(chip, REG_SD_CFG1, 0x03,
 						SD_BUS_WIDTH_8);
-			if (retval != STATUS_SUCCESS)
-				TRACE_RET(chip, TRANSPORT_FAILED);
+			if (retval != STATUS_SUCCESS) {
+				rtsx_trace(chip);
+				return TRANSPORT_FAILED;
+			}
 
 		} else if (CHK_SD(sd_card) || CHK_MMC_4BIT(sd_card)) {
 			retval = rtsx_write_register(chip, REG_SD_CFG1, 0x03,
 						SD_BUS_WIDTH_4);
-			if (retval != STATUS_SUCCESS)
-				TRACE_RET(chip, TRANSPORT_FAILED);
+			if (retval != STATUS_SUCCESS) {
+				rtsx_trace(chip);
+				return TRANSPORT_FAILED;
+			}
 		}
 	}
 #else
 	retval = rtsx_write_register(chip, REG_SD_CFG1, 0x03, SD_BUS_WIDTH_4);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, TRANSPORT_FAILED);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
+	}
 #endif
 
 	if (standby) {
 		retval = sd_select_card(chip, 0);
-		if (retval != STATUS_SUCCESS)
-			TRACE_GOTO(chip, SD_Execute_Cmd_Failed);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			goto SD_Execute_Cmd_Failed;
+		}
 	}
 
 	if (acmd) {
 		retval = ext_sd_send_cmd_get_rsp(chip, APP_CMD,
 						sd_card->sd_addr,
-						SD_RSP_TYPE_R1, NULL, 0, 0);
-		if (retval != STATUS_SUCCESS)
-			TRACE_GOTO(chip, SD_Execute_Cmd_Failed);
+						SD_RSP_TYPE_R1, NULL, 0, false);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			goto SD_Execute_Cmd_Failed;
+		}
 	}
 
 	retval = ext_sd_send_cmd_get_rsp(chip, cmd_idx, arg, rsp_type,
-			sd_card->rsp, rsp_len, 0);
-	if (retval != STATUS_SUCCESS)
-		TRACE_GOTO(chip, SD_Execute_Cmd_Failed);
+			sd_card->rsp, rsp_len, false);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		goto SD_Execute_Cmd_Failed;
+	}
 
 	if (standby) {
 		retval = sd_select_card(chip, 1);
-		if (retval != STATUS_SUCCESS)
-			TRACE_GOTO(chip, SD_Execute_Cmd_Failed);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			goto SD_Execute_Cmd_Failed;
+		}
 	}
 
 #ifdef SUPPORT_SD_LOCK
 	retval = sd_update_lock_status(chip);
-	if (retval != STATUS_SUCCESS)
-		TRACE_GOTO(chip, SD_Execute_Cmd_Failed);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		goto SD_Execute_Cmd_Failed;
+	}
 #endif
 
 	scsi_set_resid(srb, 0);
@@ -3804,7 +4472,8 @@ SD_Execute_Cmd_Failed:
 	if (!(chip->card_ready & SD_CARD))
 		set_sense_type(chip, lun, SENSE_TYPE_MEDIA_NOT_PRESENT);
 
-	TRACE_RET(chip, TRANSPORT_FAILED);
+	rtsx_trace(chip);
+	return TRANSPORT_FAILED;
 }
 
 int sd_execute_read_data(struct scsi_cmnd *srb, struct rtsx_chip *chip)
@@ -3812,35 +4481,39 @@ int sd_execute_read_data(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	struct sd_info *sd_card = &(chip->sd_card);
 	unsigned int lun = SCSI_LUN(srb);
 	int retval, rsp_len, i;
-	int cmd13_checkbit = 0, read_err = 0;
+	bool read_err = false, cmd13_checkbit = false;
 	u8 cmd_idx, rsp_type, bus_width;
-	u8 send_cmd12 = 0, standby = 0, acmd = 0;
+	bool standby = false, send_cmd12 = false, acmd = false;
 	u32 data_len;
 
 	if (!sd_card->sd_pass_thru_en) {
 		set_sense_type(chip, lun, SENSE_TYPE_MEDIA_INVALID_CMD_FIELD);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 
 	if (sd_card->pre_cmd_err) {
 		sd_card->pre_cmd_err = 0;
 		set_sense_type(chip, lun, SENSE_TYPE_MEDIA_CHANGE);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 
 	retval = sd_switch_clock(chip);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, TRANSPORT_FAILED);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
+	}
 
 	cmd_idx = srb->cmnd[2] & 0x3F;
 	if (srb->cmnd[1] & 0x04)
-		send_cmd12 = 1;
+		send_cmd12 = true;
 
 	if (srb->cmnd[1] & 0x02)
-		standby = 1;
+		standby = true;
 
 	if (srb->cmnd[1] & 0x01)
-		acmd = 1;
+		acmd = true;
 
 	data_len = ((u32)srb->cmnd[7] << 16) | ((u32)srb->cmnd[8]
 						<< 8) | srb->cmnd[9];
@@ -3848,13 +4521,16 @@ int sd_execute_read_data(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	retval = get_rsp_type(srb, &rsp_type, &rsp_len);
 	if (retval != STATUS_SUCCESS) {
 		set_sense_type(chip, lun, SENSE_TYPE_MEDIA_INVALID_CMD_FIELD);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 	sd_card->last_rsp_type = rsp_type;
 
 	retval = sd_switch_clock(chip);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, TRANSPORT_FAILED);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
+	}
 
 #ifdef SUPPORT_SD_LOCK
 	if ((sd_card->sd_lock_status & SD_LOCK_1BIT_MODE) == 0) {
@@ -3874,23 +4550,29 @@ int sd_execute_read_data(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 
 	if (data_len < 512) {
 		retval = ext_sd_send_cmd_get_rsp(chip, SET_BLOCKLEN, data_len,
-				SD_RSP_TYPE_R1, NULL, 0, 0);
-		if (retval != STATUS_SUCCESS)
-			TRACE_GOTO(chip, SD_Execute_Read_Cmd_Failed);
+				SD_RSP_TYPE_R1, NULL, 0, false);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			goto SD_Execute_Read_Cmd_Failed;
+		}
 	}
 
 	if (standby) {
 		retval = sd_select_card(chip, 0);
-		if (retval != STATUS_SUCCESS)
-			TRACE_GOTO(chip, SD_Execute_Read_Cmd_Failed);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			goto SD_Execute_Read_Cmd_Failed;
+		}
 	}
 
 	if (acmd) {
 		retval = ext_sd_send_cmd_get_rsp(chip, APP_CMD,
 						sd_card->sd_addr,
-						SD_RSP_TYPE_R1, NULL, 0, 0);
-		if (retval != STATUS_SUCCESS)
-			TRACE_GOTO(chip, SD_Execute_Read_Cmd_Failed);
+						SD_RSP_TYPE_R1, NULL, 0, false);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			goto SD_Execute_Read_Cmd_Failed;
+		}
 	}
 
 	if (data_len <= 512) {
@@ -3909,16 +4591,19 @@ int sd_execute_read_data(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 		cmd[4] = srb->cmnd[6];
 
 		buf = kmalloc(data_len, GFP_KERNEL);
-		if (buf == NULL)
-			TRACE_RET(chip, TRANSPORT_ERROR);
+		if (buf == NULL) {
+			rtsx_trace(chip);
+			return TRANSPORT_ERROR;
+		}
 
 		retval = sd_read_data(chip, SD_TM_NORMAL_READ, cmd, 5, byte_cnt,
 				       blk_cnt, bus_width, buf, data_len, 2000);
 		if (retval != STATUS_SUCCESS) {
-			read_err = 1;
+			read_err = true;
 			kfree(buf);
 			rtsx_clear_sd_error(chip);
-			TRACE_GOTO(chip, SD_Execute_Read_Cmd_Failed);
+			rtsx_trace(chip);
+			goto SD_Execute_Read_Cmd_Failed;
 		}
 
 		min_len = min(data_len, scsi_bufflen(srb));
@@ -3964,49 +4649,63 @@ int sd_execute_read_data(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 					scsi_bufflen(srb), scsi_sg_count(srb),
 					DMA_FROM_DEVICE, 10000);
 		if (retval < 0) {
-			read_err = 1;
+			read_err = true;
 			rtsx_clear_sd_error(chip);
-			TRACE_GOTO(chip, SD_Execute_Read_Cmd_Failed);
+			rtsx_trace(chip);
+			goto SD_Execute_Read_Cmd_Failed;
 		}
 
 	} else {
-		TRACE_GOTO(chip, SD_Execute_Read_Cmd_Failed);
+		rtsx_trace(chip);
+		goto SD_Execute_Read_Cmd_Failed;
 	}
 
 	retval = ext_sd_get_rsp(chip, rsp_len, sd_card->rsp, rsp_type);
-	if (retval != STATUS_SUCCESS)
-		TRACE_GOTO(chip, SD_Execute_Read_Cmd_Failed);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		goto SD_Execute_Read_Cmd_Failed;
+	}
 
 	if (standby) {
 		retval = sd_select_card(chip, 1);
-		if (retval != STATUS_SUCCESS)
-			TRACE_GOTO(chip, SD_Execute_Read_Cmd_Failed);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			goto SD_Execute_Read_Cmd_Failed;
+		}
 	}
 
 	if (send_cmd12) {
 		retval = ext_sd_send_cmd_get_rsp(chip, STOP_TRANSMISSION,
-				0, SD_RSP_TYPE_R1b, NULL, 0, 0);
-		if (retval != STATUS_SUCCESS)
-			TRACE_GOTO(chip, SD_Execute_Read_Cmd_Failed);
+				0, SD_RSP_TYPE_R1b, NULL, 0, false);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			goto SD_Execute_Read_Cmd_Failed;
+		}
 	}
 
 	if (data_len < 512) {
 		retval = ext_sd_send_cmd_get_rsp(chip, SET_BLOCKLEN, 0x200,
-				SD_RSP_TYPE_R1, NULL, 0, 0);
-		if (retval != STATUS_SUCCESS)
-			TRACE_GOTO(chip, SD_Execute_Read_Cmd_Failed);
+				SD_RSP_TYPE_R1, NULL, 0, false);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			goto SD_Execute_Read_Cmd_Failed;
+		}
 
 		retval = rtsx_write_register(chip, SD_BYTE_CNT_H, 0xFF, 0x02);
-		if (retval != STATUS_SUCCESS)
-			TRACE_GOTO(chip, SD_Execute_Read_Cmd_Failed);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			goto SD_Execute_Read_Cmd_Failed;
+		}
 
 		retval = rtsx_write_register(chip, SD_BYTE_CNT_L, 0xFF, 0x00);
-		if (retval != STATUS_SUCCESS)
-			TRACE_GOTO(chip, SD_Execute_Read_Cmd_Failed);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			goto SD_Execute_Read_Cmd_Failed;
+		}
 	}
 
 	if ((srb->cmnd[1] & 0x02) || (srb->cmnd[1] & 0x04))
-		cmd13_checkbit = 1;
+		cmd13_checkbit = true;
 
 	for (i = 0; i < 3; i++) {
 		retval = ext_sd_send_cmd_get_rsp(chip, SEND_STATUS,
@@ -4016,8 +4715,10 @@ int sd_execute_read_data(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 		if (retval == STATUS_SUCCESS)
 			break;
 	}
-	if (retval != STATUS_SUCCESS)
-		TRACE_GOTO(chip, SD_Execute_Read_Cmd_Failed);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		goto SD_Execute_Read_Cmd_Failed;
+	}
 
 	scsi_set_resid(srb, 0);
 	return TRANSPORT_GOOD;
@@ -4033,7 +4734,8 @@ SD_Execute_Read_Cmd_Failed:
 	if (!(chip->card_ready & SD_CARD))
 		set_sense_type(chip, lun, SENSE_TYPE_MEDIA_NOT_PRESENT);
 
-	TRACE_RET(chip, TRANSPORT_FAILED);
+	rtsx_trace(chip);
+	return TRANSPORT_FAILED;
 }
 
 int sd_execute_write_data(struct scsi_cmnd *srb, struct rtsx_chip *chip)
@@ -4041,9 +4743,9 @@ int sd_execute_write_data(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	struct sd_info *sd_card = &(chip->sd_card);
 	unsigned int lun = SCSI_LUN(srb);
 	int retval, rsp_len, i;
-	int cmd13_checkbit = 0, write_err = 0;
+	bool write_err = false, cmd13_checkbit = false;
 	u8 cmd_idx, rsp_type;
-	u8 send_cmd12 = 0, standby = 0, acmd = 0;
+	bool standby = false, send_cmd12 = false, acmd = false;
 	u32 data_len, arg;
 #ifdef SUPPORT_SD_LOCK
 	int lock_cmd_fail = 0;
@@ -4053,28 +4755,32 @@ int sd_execute_write_data(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 
 	if (!sd_card->sd_pass_thru_en) {
 		set_sense_type(chip, lun, SENSE_TYPE_MEDIA_INVALID_CMD_FIELD);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 
 	if (sd_card->pre_cmd_err) {
 		sd_card->pre_cmd_err = 0;
 		set_sense_type(chip, lun, SENSE_TYPE_MEDIA_CHANGE);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 
 	retval = sd_switch_clock(chip);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, TRANSPORT_FAILED);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
+	}
 
 	cmd_idx = srb->cmnd[2] & 0x3F;
 	if (srb->cmnd[1] & 0x04)
-		send_cmd12 = 1;
+		send_cmd12 = true;
 
 	if (srb->cmnd[1] & 0x02)
-		standby = 1;
+		standby = true;
 
 	if (srb->cmnd[1] & 0x01)
-		acmd = 1;
+		acmd = true;
 
 	data_len = ((u32)srb->cmnd[7] << 16) | ((u32)srb->cmnd[8]
 						<< 8) | srb->cmnd[9];
@@ -4091,68 +4797,87 @@ int sd_execute_write_data(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	retval = get_rsp_type(srb, &rsp_type, &rsp_len);
 	if (retval != STATUS_SUCCESS) {
 		set_sense_type(chip, lun, SENSE_TYPE_MEDIA_INVALID_CMD_FIELD);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 	sd_card->last_rsp_type = rsp_type;
 
 	retval = sd_switch_clock(chip);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, TRANSPORT_FAILED);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
+	}
 
 #ifdef SUPPORT_SD_LOCK
 	if ((sd_card->sd_lock_status & SD_LOCK_1BIT_MODE) == 0) {
 		if (CHK_MMC_8BIT(sd_card)) {
 			retval = rtsx_write_register(chip, REG_SD_CFG1, 0x03,
 						SD_BUS_WIDTH_8);
-			if (retval != STATUS_SUCCESS)
-				TRACE_RET(chip, TRANSPORT_FAILED);
+			if (retval != STATUS_SUCCESS) {
+				rtsx_trace(chip);
+				return TRANSPORT_FAILED;
+			}
 
 		} else if (CHK_SD(sd_card) || CHK_MMC_4BIT(sd_card)) {
 			retval = rtsx_write_register(chip, REG_SD_CFG1, 0x03,
 						SD_BUS_WIDTH_4);
-			if (retval != STATUS_SUCCESS)
-				TRACE_RET(chip, TRANSPORT_FAILED);
+			if (retval != STATUS_SUCCESS) {
+				rtsx_trace(chip);
+				return TRANSPORT_FAILED;
+			}
 		}
 	}
 #else
 	retval = rtsx_write_register(chip, REG_SD_CFG1, 0x03, SD_BUS_WIDTH_4);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, TRANSPORT_FAILED);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
+	}
 #endif
 
 	if (data_len < 512) {
 		retval = ext_sd_send_cmd_get_rsp(chip, SET_BLOCKLEN, data_len,
-				SD_RSP_TYPE_R1, NULL, 0, 0);
-		if (retval != STATUS_SUCCESS)
-			TRACE_GOTO(chip, SD_Execute_Write_Cmd_Failed);
+				SD_RSP_TYPE_R1, NULL, 0, false);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			goto SD_Execute_Write_Cmd_Failed;
+		}
 	}
 
 	if (standby) {
 		retval = sd_select_card(chip, 0);
-		if (retval != STATUS_SUCCESS)
-			TRACE_GOTO(chip, SD_Execute_Write_Cmd_Failed);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			goto SD_Execute_Write_Cmd_Failed;
+		}
 	}
 
 	if (acmd) {
 		retval = ext_sd_send_cmd_get_rsp(chip, APP_CMD,
 						sd_card->sd_addr,
-						SD_RSP_TYPE_R1, NULL, 0, 0);
-		if (retval != STATUS_SUCCESS)
-			TRACE_GOTO(chip, SD_Execute_Write_Cmd_Failed);
+						SD_RSP_TYPE_R1, NULL, 0, false);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			goto SD_Execute_Write_Cmd_Failed;
+		}
 	}
 
 	retval = ext_sd_send_cmd_get_rsp(chip, cmd_idx, arg, rsp_type,
-			sd_card->rsp, rsp_len, 0);
-	if (retval != STATUS_SUCCESS)
-		TRACE_GOTO(chip, SD_Execute_Write_Cmd_Failed);
+			sd_card->rsp, rsp_len, false);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		goto SD_Execute_Write_Cmd_Failed;
+	}
 
 	if (data_len <= 512) {
 		u16 i;
 		u8 *buf;
 
 		buf = kmalloc(data_len, GFP_KERNEL);
-		if (buf == NULL)
-			TRACE_RET(chip, TRANSPORT_ERROR);
+		if (buf == NULL) {
+			rtsx_trace(chip);
+			return TRANSPORT_ERROR;
+		}
 
 		rtsx_stor_get_xfer_buf(buf, data_len, srb);
 
@@ -4170,7 +4895,8 @@ int sd_execute_write_data(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 			retval = rtsx_send_cmd(chip, 0, 250);
 			if (retval != STATUS_SUCCESS) {
 				kfree(buf);
-				TRACE_GOTO(chip, SD_Execute_Write_Cmd_Failed);
+				rtsx_trace(chip);
+				goto SD_Execute_Write_Cmd_Failed;
 			}
 
 			rtsx_init_cmd(chip);
@@ -4181,7 +4907,8 @@ int sd_execute_write_data(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 			retval = rtsx_send_cmd(chip, 0, 250);
 			if (retval != STATUS_SUCCESS) {
 				kfree(buf);
-				TRACE_GOTO(chip, SD_Execute_Write_Cmd_Failed);
+				rtsx_trace(chip);
+				goto SD_Execute_Write_Cmd_Failed;
 			}
 		} else {
 			rtsx_init_cmd(chip);
@@ -4192,7 +4919,8 @@ int sd_execute_write_data(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 			retval = rtsx_send_cmd(chip, 0, 250);
 			if (retval != STATUS_SUCCESS) {
 				kfree(buf);
-				TRACE_GOTO(chip, SD_Execute_Write_Cmd_Failed);
+				rtsx_trace(chip);
+				goto SD_Execute_Write_Cmd_Failed;
 			}
 		}
 
@@ -4243,13 +4971,15 @@ int sd_execute_write_data(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 					DMA_TO_DEVICE, 10000);
 
 	} else {
-		TRACE_GOTO(chip, SD_Execute_Write_Cmd_Failed);
+		rtsx_trace(chip);
+		goto SD_Execute_Write_Cmd_Failed;
 	}
 
 	if (retval < 0) {
-		write_err = 1;
+		write_err = true;
 		rtsx_clear_sd_error(chip);
-		TRACE_GOTO(chip, SD_Execute_Write_Cmd_Failed);
+		rtsx_trace(chip);
+		goto SD_Execute_Write_Cmd_Failed;
 	}
 
 #ifdef SUPPORT_SD_LOCK
@@ -4275,34 +5005,44 @@ int sd_execute_write_data(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 
 	if (standby) {
 		retval = sd_select_card(chip, 1);
-		if (retval != STATUS_SUCCESS)
-			TRACE_GOTO(chip, SD_Execute_Write_Cmd_Failed);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			goto SD_Execute_Write_Cmd_Failed;
+		}
 	}
 
 	if (send_cmd12) {
 		retval = ext_sd_send_cmd_get_rsp(chip, STOP_TRANSMISSION,
-				0, SD_RSP_TYPE_R1b, NULL, 0, 0);
-		if (retval != STATUS_SUCCESS)
-			TRACE_GOTO(chip, SD_Execute_Write_Cmd_Failed);
+				0, SD_RSP_TYPE_R1b, NULL, 0, false);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			goto SD_Execute_Write_Cmd_Failed;
+		}
 	}
 
 	if (data_len < 512) {
 		retval = ext_sd_send_cmd_get_rsp(chip, SET_BLOCKLEN, 0x200,
-				SD_RSP_TYPE_R1, NULL, 0, 0);
-		if (retval != STATUS_SUCCESS)
-			TRACE_GOTO(chip, SD_Execute_Write_Cmd_Failed);
+				SD_RSP_TYPE_R1, NULL, 0, false);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			goto SD_Execute_Write_Cmd_Failed;
+		}
 
 		retval = rtsx_write_register(chip, SD_BYTE_CNT_H, 0xFF, 0x02);
-		if (retval != STATUS_SUCCESS)
-			TRACE_GOTO(chip, SD_Execute_Write_Cmd_Failed);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			goto SD_Execute_Write_Cmd_Failed;
+		}
 
 		rtsx_write_register(chip, SD_BYTE_CNT_L, 0xFF, 0x00);
-		if (retval != STATUS_SUCCESS)
-			TRACE_GOTO(chip, SD_Execute_Write_Cmd_Failed);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			goto SD_Execute_Write_Cmd_Failed;
+		}
 	}
 
 	if ((srb->cmnd[1] & 0x02) || (srb->cmnd[1] & 0x04))
-		cmd13_checkbit = 1;
+		cmd13_checkbit = true;
 
 	for (i = 0; i < 3; i++) {
 		retval = ext_sd_send_cmd_get_rsp(chip, SEND_STATUS,
@@ -4312,8 +5052,10 @@ int sd_execute_write_data(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 		if (retval == STATUS_SUCCESS)
 			break;
 	}
-	if (retval != STATUS_SUCCESS)
-		TRACE_GOTO(chip, SD_Execute_Write_Cmd_Failed);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		goto SD_Execute_Write_Cmd_Failed;
+	}
 
 #ifdef SUPPORT_SD_LOCK
 	if (cmd_idx == LOCK_UNLOCK) {
@@ -4339,7 +5081,8 @@ int sd_execute_write_data(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 						retval = reset_sd(chip);
 						if (retval != STATUS_SUCCESS) {
 							sd_card->sd_lock_status &= ~(SD_UNLOCK_POW_ON | SD_SDR_RST);
-							TRACE_GOTO(chip, SD_Execute_Write_Cmd_Failed);
+							rtsx_trace(chip);
+							goto SD_Execute_Write_Cmd_Failed;
 						}
 					}
 
@@ -4352,7 +5095,8 @@ int sd_execute_write_data(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	if (lock_cmd_fail) {
 		scsi_set_resid(srb, 0);
 		set_sense_type(chip, lun, SENSE_TYPE_NO_SENSE);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 #endif  /* SUPPORT_SD_LOCK */
 
@@ -4370,7 +5114,8 @@ SD_Execute_Write_Cmd_Failed:
 	if (!(chip->card_ready & SD_CARD))
 		set_sense_type(chip, lun, SENSE_TYPE_MEDIA_NOT_PRESENT);
 
-	TRACE_RET(chip, TRANSPORT_FAILED);
+	rtsx_trace(chip);
+	return TRANSPORT_FAILED;
 }
 
 int sd_get_cmd_rsp(struct scsi_cmnd *srb, struct rtsx_chip *chip)
@@ -4382,20 +5127,23 @@ int sd_get_cmd_rsp(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 
 	if (!sd_card->sd_pass_thru_en) {
 		set_sense_type(chip, lun, SENSE_TYPE_MEDIA_INVALID_CMD_FIELD);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 
 	if (sd_card->pre_cmd_err) {
 		sd_card->pre_cmd_err = 0;
 		set_sense_type(chip, lun, SENSE_TYPE_MEDIA_CHANGE);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 
 	data_len = ((u16)srb->cmnd[7] << 8) | srb->cmnd[8];
 
 	if (sd_card->last_rsp_type == SD_RSP_TYPE_R0) {
 		set_sense_type(chip, lun, SENSE_TYPE_MEDIA_INVALID_CMD_FIELD);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	} else if (sd_card->last_rsp_type == SD_RSP_TYPE_R2) {
 		count = (data_len < 17) ? data_len : 17;
 	} else {
@@ -4420,13 +5168,15 @@ int sd_hw_rst(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 
 	if (!sd_card->sd_pass_thru_en) {
 		set_sense_type(chip, lun, SENSE_TYPE_MEDIA_INVALID_CMD_FIELD);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 
 	if (sd_card->pre_cmd_err) {
 		sd_card->pre_cmd_err = 0;
 		set_sense_type(chip, lun, SENSE_TYPE_MEDIA_CHANGE);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 
 	if ((0x53 != srb->cmnd[2]) || (0x44 != srb->cmnd[3]) ||
@@ -4434,7 +5184,8 @@ int sd_hw_rst(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 		(0x61 != srb->cmnd[6]) || (0x72 != srb->cmnd[7]) ||
 		(0x64 != srb->cmnd[8])) {
 		set_sense_type(chip, lun, SENSE_TYPE_MEDIA_INVALID_CMD_FIELD);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 
 	switch (srb->cmnd[1] & 0x0F) {
@@ -4450,7 +5201,8 @@ int sd_hw_rst(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 #endif
 			set_sense_type(chip, lun, SENSE_TYPE_MEDIA_NOT_PRESENT);
 			sd_card->pre_cmd_err = 1;
-			TRACE_RET(chip, TRANSPORT_FAILED);
+			rtsx_trace(chip);
+			return TRANSPORT_FAILED;
 		}
 #ifdef SUPPORT_SD_LOCK
 		sd_card->sd_lock_status &= ~SD_SDR_RST;
@@ -4462,13 +5214,15 @@ int sd_hw_rst(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 		if (retval != STATUS_SUCCESS) {
 			set_sense_type(chip, lun, SENSE_TYPE_MEDIA_NOT_PRESENT);
 			sd_card->pre_cmd_err = 1;
-			TRACE_RET(chip, TRANSPORT_FAILED);
+			rtsx_trace(chip);
+			return TRANSPORT_FAILED;
 		}
 		break;
 
 	default:
 		set_sense_type(chip, lun, SENSE_TYPE_MEDIA_INVALID_CMD_FIELD);
-		TRACE_RET(chip, TRANSPORT_FAILED);
+		rtsx_trace(chip);
+		return TRANSPORT_FAILED;
 	}
 
 	scsi_set_resid(srb, 0);
@@ -4492,26 +5246,41 @@ int sd_power_off_card3v3(struct rtsx_chip *chip)
 	int retval;
 
 	retval = disable_card_clock(chip, SD_CARD);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
-	RTSX_WRITE_REG(chip, CARD_OE, SD_OUTPUT_EN, 0);
+	retval = rtsx_write_register(chip, CARD_OE, SD_OUTPUT_EN, 0);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 
 	if (!chip->ft2_fast_mode) {
 		retval = card_power_off(chip, SD_CARD);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 
 		wait_timeout(50);
 	}
 
 	if (chip->asic_code) {
 		retval = sd_pull_ctl_disable(chip);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 	} else {
-		RTSX_WRITE_REG(chip, FPGA_PULL_CTL,
-			FPGA_SD_PULL_CTL_BIT | 0x20, FPGA_SD_PULL_CTL_BIT);
+		retval = rtsx_write_register(chip, FPGA_PULL_CTL,
+					     FPGA_SD_PULL_CTL_BIT | 0x20,
+					     FPGA_SD_PULL_CTL_BIT);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
 	}
 
 	return STATUS_SUCCESS;
@@ -4538,8 +5307,10 @@ int release_sd_card(struct rtsx_chip *chip)
 	memset(sd_card->raw_scr, 0, 8);
 
 	retval = sd_power_off_card3v3(chip);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	return STATUS_SUCCESS;
 }
diff --git a/drivers/staging/rts5208/sd.h b/drivers/staging/rts5208/sd.h
index 735b2d0..60b7928 100644
--- a/drivers/staging/rts5208/sd.h
+++ b/drivers/staging/rts5208/sd.h
@@ -287,7 +287,7 @@ int release_sd_card(struct rtsx_chip *chip);
 #ifdef SUPPORT_CPRM
 int soft_reset_sd_card(struct rtsx_chip *chip);
 int ext_sd_send_cmd_get_rsp(struct rtsx_chip *chip, u8 cmd_idx,
-		u32 arg, u8 rsp_type, u8 *rsp, int rsp_len, int special_check);
+		u32 arg, u8 rsp_type, u8 *rsp, int rsp_len, bool special_check);
 int ext_sd_get_rsp(struct rtsx_chip *chip, int len, u8 *rsp, u8 rsp_type);
 
 int sd_pass_thru_mode(struct scsi_cmnd *srb, struct rtsx_chip *chip);
diff --git a/drivers/staging/rts5208/spi.c b/drivers/staging/rts5208/spi.c
index 29f4a80..e67e7ec 100644
--- a/drivers/staging/rts5208/spi.c
+++ b/drivers/staging/rts5208/spi.c
@@ -25,9 +25,6 @@
 #include <linux/sched.h>
 
 #include "rtsx.h"
-#include "rtsx_transport.h"
-#include "rtsx_scsi.h"
-#include "rtsx_card.h"
 #include "spi.h"
 
 static inline void spi_set_err_code(struct rtsx_chip *chip, u8 err_code)
@@ -39,10 +36,20 @@ static inline void spi_set_err_code(struct rtsx_chip *chip, u8 err_code)
 
 static int spi_init(struct rtsx_chip *chip)
 {
-	RTSX_WRITE_REG(chip, SPI_CONTROL, 0xFF,
-		CS_POLARITY_LOW | DTO_MSB_FIRST | SPI_MASTER | SPI_MODE0 |
-		SPI_AUTO);
-	RTSX_WRITE_REG(chip, SPI_TCTL, EDO_TIMING_MASK, SAMPLE_DELAY_HALF);
+	int retval;
+
+	retval = rtsx_write_register(chip, SPI_CONTROL, 0xFF,
+				     CS_POLARITY_LOW | DTO_MSB_FIRST | SPI_MASTER | SPI_MODE0 | SPI_AUTO);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
+	retval = rtsx_write_register(chip, SPI_TCTL, EDO_TIMING_MASK,
+				     SAMPLE_DELAY_HALF);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 
 	return STATUS_SUCCESS;
 }
@@ -52,25 +59,51 @@ static int spi_set_init_para(struct rtsx_chip *chip)
 	struct spi_info *spi = &(chip->spi);
 	int retval;
 
-	RTSX_WRITE_REG(chip, SPI_CLK_DIVIDER1, 0xFF, (u8)(spi->clk_div >> 8));
-	RTSX_WRITE_REG(chip, SPI_CLK_DIVIDER0, 0xFF, (u8)(spi->clk_div));
+	retval = rtsx_write_register(chip, SPI_CLK_DIVIDER1, 0xFF,
+				     (u8)(spi->clk_div >> 8));
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
+	retval = rtsx_write_register(chip, SPI_CLK_DIVIDER0, 0xFF,
+				     (u8)(spi->clk_div));
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 
 	retval = switch_clock(chip, spi->spi_clock);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	retval = select_card(chip, SPI_CARD);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
-	RTSX_WRITE_REG(chip, CARD_CLK_EN, SPI_CLK_EN, SPI_CLK_EN);
-	RTSX_WRITE_REG(chip, CARD_OE, SPI_OUTPUT_EN, SPI_OUTPUT_EN);
+	retval = rtsx_write_register(chip, CARD_CLK_EN, SPI_CLK_EN,
+				     SPI_CLK_EN);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
+	retval = rtsx_write_register(chip, CARD_OE, SPI_OUTPUT_EN,
+				     SPI_OUTPUT_EN);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 
 	wait_timeout(10);
 
 	retval = spi_init(chip);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	return STATUS_SUCCESS;
 }
@@ -91,7 +124,8 @@ static int sf_polling_status(struct rtsx_chip *chip, int msec)
 	if (retval < 0) {
 		rtsx_clear_spi_error(chip);
 		spi_set_err_code(chip, SPI_BUSY_ERR);
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	return STATUS_SUCCESS;
@@ -119,7 +153,8 @@ static int sf_enable_write(struct rtsx_chip *chip, u8 ins)
 	if (retval < 0) {
 		rtsx_clear_spi_error(chip);
 		spi_set_err_code(chip, SPI_HW_ERR);
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	return STATUS_SUCCESS;
@@ -147,7 +182,8 @@ static int sf_disable_write(struct rtsx_chip *chip, u8 ins)
 	if (retval < 0) {
 		rtsx_clear_spi_error(chip);
 		spi_set_err_code(chip, SPI_HW_ERR);
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	return STATUS_SUCCESS;
@@ -205,7 +241,8 @@ static int sf_erase(struct rtsx_chip *chip, u8 ins, u8 addr_mode, u32 addr)
 	if (retval < 0) {
 		rtsx_clear_spi_error(chip);
 		spi_set_err_code(chip, SPI_HW_ERR);
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	return STATUS_SUCCESS;
@@ -221,25 +258,56 @@ static int spi_init_eeprom(struct rtsx_chip *chip)
 	else
 		clk = CLK_30;
 
-	RTSX_WRITE_REG(chip, SPI_CLK_DIVIDER1, 0xFF, 0x00);
-	RTSX_WRITE_REG(chip, SPI_CLK_DIVIDER0, 0xFF, 0x27);
+	retval = rtsx_write_register(chip, SPI_CLK_DIVIDER1, 0xFF, 0x00);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
+	retval = rtsx_write_register(chip, SPI_CLK_DIVIDER0, 0xFF, 0x27);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 
 	retval = switch_clock(chip, clk);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	retval = select_card(chip, SPI_CARD);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
-	RTSX_WRITE_REG(chip, CARD_CLK_EN, SPI_CLK_EN, SPI_CLK_EN);
-	RTSX_WRITE_REG(chip, CARD_OE, SPI_OUTPUT_EN, SPI_OUTPUT_EN);
+	retval = rtsx_write_register(chip, CARD_CLK_EN, SPI_CLK_EN,
+				     SPI_CLK_EN);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
+	retval = rtsx_write_register(chip, CARD_OE, SPI_OUTPUT_EN,
+				     SPI_OUTPUT_EN);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 
 	wait_timeout(10);
 
-	RTSX_WRITE_REG(chip, SPI_CONTROL, 0xFF,
-		CS_POLARITY_HIGH | SPI_EEPROM_AUTO);
-	RTSX_WRITE_REG(chip, SPI_TCTL, EDO_TIMING_MASK, SAMPLE_DELAY_HALF);
+	retval = rtsx_write_register(chip, SPI_CONTROL, 0xFF,
+				     CS_POLARITY_HIGH | SPI_EEPROM_AUTO);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
+	retval = rtsx_write_register(chip, SPI_TCTL, EDO_TIMING_MASK,
+				     SAMPLE_DELAY_HALF);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 
 	return STATUS_SUCCESS;
 }
@@ -258,8 +326,10 @@ static int spi_eeprom_program_enable(struct rtsx_chip *chip)
 		SPI_TRANSFER0_END);
 
 	retval = rtsx_send_cmd(chip, 0, 100);
-	if (retval < 0)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval < 0) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	return STATUS_SUCCESS;
 }
@@ -269,12 +339,16 @@ int spi_erase_eeprom_chip(struct rtsx_chip *chip)
 	int retval;
 
 	retval = spi_init_eeprom(chip);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	retval = spi_eeprom_program_enable(chip);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	rtsx_init_cmd(chip);
 
@@ -288,10 +362,16 @@ int spi_erase_eeprom_chip(struct rtsx_chip *chip)
 		SPI_TRANSFER0_END);
 
 	retval = rtsx_send_cmd(chip, 0, 100);
-	if (retval < 0)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval < 0) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
-	RTSX_WRITE_REG(chip, CARD_GPIO_DIR, 0x01, 0x01);
+	retval = rtsx_write_register(chip, CARD_GPIO_DIR, 0x01, 0x01);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 
 	return STATUS_SUCCESS;
 }
@@ -301,12 +381,16 @@ int spi_erase_eeprom_byte(struct rtsx_chip *chip, u16 addr)
 	int retval;
 
 	retval = spi_init_eeprom(chip);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	retval = spi_eeprom_program_enable(chip);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	rtsx_init_cmd(chip);
 
@@ -322,10 +406,16 @@ int spi_erase_eeprom_byte(struct rtsx_chip *chip, u16 addr)
 		SPI_TRANSFER0_END);
 
 	retval = rtsx_send_cmd(chip, 0, 100);
-	if (retval < 0)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval < 0) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
-	RTSX_WRITE_REG(chip, CARD_GPIO_DIR, 0x01, 0x01);
+	retval = rtsx_write_register(chip, CARD_GPIO_DIR, 0x01, 0x01);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 
 	return STATUS_SUCCESS;
 }
@@ -337,8 +427,10 @@ int spi_read_eeprom(struct rtsx_chip *chip, u16 addr, u8 *val)
 	u8 data;
 
 	retval = spi_init_eeprom(chip);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	rtsx_init_cmd(chip);
 
@@ -355,16 +447,26 @@ int spi_read_eeprom(struct rtsx_chip *chip, u16 addr, u8 *val)
 		SPI_TRANSFER0_END);
 
 	retval = rtsx_send_cmd(chip, 0, 100);
-	if (retval < 0)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval < 0) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	wait_timeout(5);
-	RTSX_READ_REG(chip, SPI_DATA, &data);
+	retval = rtsx_read_register(chip, SPI_DATA, &data);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 
 	if (val)
 		*val = data;
 
-	RTSX_WRITE_REG(chip, CARD_GPIO_DIR, 0x01, 0x01);
+	retval = rtsx_write_register(chip, CARD_GPIO_DIR, 0x01, 0x01);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 
 	return STATUS_SUCCESS;
 }
@@ -374,12 +476,16 @@ int spi_write_eeprom(struct rtsx_chip *chip, u16 addr, u8 val)
 	int retval;
 
 	retval = spi_init_eeprom(chip);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	retval = spi_eeprom_program_enable(chip);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	rtsx_init_cmd(chip);
 
@@ -396,10 +502,16 @@ int spi_write_eeprom(struct rtsx_chip *chip, u16 addr, u8 val)
 		SPI_TRANSFER0_END);
 
 	retval = rtsx_send_cmd(chip, 0, 100);
-	if (retval < 0)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval < 0) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
-	RTSX_WRITE_REG(chip, CARD_GPIO_DIR, 0x01, 0x01);
+	retval = rtsx_write_register(chip, CARD_GPIO_DIR, 0x01, 0x01);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 
 	return STATUS_SUCCESS;
 }
@@ -449,13 +561,15 @@ int spi_read_flash_id(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	len = ((u16)(srb->cmnd[7]) << 8) | srb->cmnd[8];
 	if (len > 512) {
 		spi_set_err_code(chip, SPI_INVALID_COMMAND);
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	retval = spi_set_init_para(chip);
 	if (retval != STATUS_SUCCESS) {
 		spi_set_err_code(chip, SPI_HW_ERR);
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	rtsx_init_cmd(chip);
@@ -497,19 +611,23 @@ int spi_read_flash_id(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	if (retval < 0) {
 		rtsx_clear_spi_error(chip);
 		spi_set_err_code(chip, SPI_HW_ERR);
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	if (len) {
 		buf = kmalloc(len, GFP_KERNEL);
-		if (!buf)
-			TRACE_RET(chip, STATUS_ERROR);
+		if (!buf) {
+			rtsx_trace(chip);
+			return STATUS_ERROR;
+		}
 
 		retval = rtsx_read_ppbuf(chip, buf, len);
 		if (retval != STATUS_SUCCESS) {
 			spi_set_err_code(chip, SPI_READ_ERR);
 			kfree(buf);
-			TRACE_RET(chip, STATUS_FAIL);
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		}
 
 		rtsx_stor_set_xfer_buf(buf, scsi_bufflen(srb), srb);
@@ -541,12 +659,15 @@ int spi_read_flash(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	retval = spi_set_init_para(chip);
 	if (retval != STATUS_SUCCESS) {
 		spi_set_err_code(chip, SPI_HW_ERR);
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	buf = kmalloc(SF_PAGE_LEN, GFP_KERNEL);
-	if (buf == NULL)
-		TRACE_RET(chip, STATUS_ERROR);
+	if (buf == NULL) {
+		rtsx_trace(chip);
+		return STATUS_ERROR;
+	}
 
 	while (len) {
 		u16 pagelen = SF_PAGE_LEN - (u8)addr;
@@ -598,7 +719,8 @@ int spi_read_flash(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 			kfree(buf);
 			rtsx_clear_spi_error(chip);
 			spi_set_err_code(chip, SPI_HW_ERR);
-			TRACE_RET(chip, STATUS_FAIL);
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		}
 
 		rtsx_stor_access_xfer_buf(buf, pagelen, srb, &index, &offset,
@@ -634,19 +756,23 @@ int spi_write_flash(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	retval = spi_set_init_para(chip);
 	if (retval != STATUS_SUCCESS) {
 		spi_set_err_code(chip, SPI_HW_ERR);
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	if (program_mode == BYTE_PROGRAM) {
 		buf = kmalloc(4, GFP_KERNEL);
-		if (!buf)
-			TRACE_RET(chip, STATUS_ERROR);
+		if (!buf) {
+			rtsx_trace(chip);
+			return STATUS_ERROR;
+		}
 
 		while (len) {
 			retval = sf_enable_write(chip, SPI_WREN);
 			if (retval != STATUS_SUCCESS) {
 				kfree(buf);
-				TRACE_RET(chip, STATUS_FAIL);
+				rtsx_trace(chip);
+				return STATUS_FAIL;
 			}
 
 			rtsx_stor_access_xfer_buf(buf, 1, srb, &index, &offset,
@@ -665,13 +791,15 @@ int spi_write_flash(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 				kfree(buf);
 				rtsx_clear_spi_error(chip);
 				spi_set_err_code(chip, SPI_HW_ERR);
-				TRACE_RET(chip, STATUS_FAIL);
+				rtsx_trace(chip);
+				return STATUS_FAIL;
 			}
 
 			retval = sf_polling_status(chip, 100);
 			if (retval != STATUS_SUCCESS) {
 				kfree(buf);
-				TRACE_RET(chip, STATUS_FAIL);
+				rtsx_trace(chip);
+				return STATUS_FAIL;
 			}
 
 			addr++;
@@ -684,12 +812,16 @@ int spi_write_flash(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 		int first_byte = 1;
 
 		retval = sf_enable_write(chip, SPI_WREN);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 
 		buf = kmalloc(4, GFP_KERNEL);
-		if (!buf)
-			TRACE_RET(chip, STATUS_ERROR);
+		if (!buf) {
+			rtsx_trace(chip);
+			return STATUS_ERROR;
+		}
 
 		while (len) {
 			rtsx_stor_access_xfer_buf(buf, 1, srb, &index, &offset,
@@ -713,13 +845,15 @@ int spi_write_flash(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 				kfree(buf);
 				rtsx_clear_spi_error(chip);
 				spi_set_err_code(chip, SPI_HW_ERR);
-				TRACE_RET(chip, STATUS_FAIL);
+				rtsx_trace(chip);
+				return STATUS_FAIL;
 			}
 
 			retval = sf_polling_status(chip, 100);
 			if (retval != STATUS_SUCCESS) {
 				kfree(buf);
-				TRACE_RET(chip, STATUS_FAIL);
+				rtsx_trace(chip);
+				return STATUS_FAIL;
 			}
 
 			len--;
@@ -728,16 +862,22 @@ int spi_write_flash(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 		kfree(buf);
 
 		retval = sf_disable_write(chip, SPI_WRDI);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 
 		retval = sf_polling_status(chip, 100);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 	} else if (program_mode == PAGE_PROGRAM) {
 		buf = kmalloc(SF_PAGE_LEN, GFP_KERNEL);
-		if (!buf)
-			TRACE_RET(chip, STATUS_NOMEM);
+		if (!buf) {
+			rtsx_trace(chip);
+			return STATUS_NOMEM;
+		}
 
 		while (len) {
 			u16 pagelen = SF_PAGE_LEN - (u8)addr;
@@ -748,7 +888,8 @@ int spi_write_flash(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 			retval = sf_enable_write(chip, SPI_WREN);
 			if (retval != STATUS_SUCCESS) {
 				kfree(buf);
-				TRACE_RET(chip, STATUS_FAIL);
+				rtsx_trace(chip);
+				return STATUS_FAIL;
 			}
 
 			rtsx_init_cmd(chip);
@@ -767,13 +908,15 @@ int spi_write_flash(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 				kfree(buf);
 				rtsx_clear_spi_error(chip);
 				spi_set_err_code(chip, SPI_HW_ERR);
-				TRACE_RET(chip, STATUS_FAIL);
+				rtsx_trace(chip);
+				return STATUS_FAIL;
 			}
 
 			retval = sf_polling_status(chip, 100);
 			if (retval != STATUS_SUCCESS) {
 				kfree(buf);
-				TRACE_RET(chip, STATUS_FAIL);
+				rtsx_trace(chip);
+				return STATUS_FAIL;
 			}
 
 			addr += pagelen;
@@ -783,7 +926,8 @@ int spi_write_flash(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 		kfree(buf);
 	} else {
 		spi_set_err_code(chip, SPI_INVALID_COMMAND);
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	return STATUS_SUCCESS;
@@ -805,28 +949,38 @@ int spi_erase_flash(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	retval = spi_set_init_para(chip);
 	if (retval != STATUS_SUCCESS) {
 		spi_set_err_code(chip, SPI_HW_ERR);
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	if (erase_mode == PAGE_ERASE) {
 		retval = sf_enable_write(chip, SPI_WREN);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 
 		retval = sf_erase(chip, ins, 1, addr);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 	} else if (erase_mode == CHIP_ERASE) {
 		retval = sf_enable_write(chip, SPI_WREN);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 
 		retval = sf_erase(chip, ins, 0, 0);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 	} else {
 		spi_set_err_code(chip, SPI_INVALID_COMMAND);
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	return STATUS_SUCCESS;
@@ -844,12 +998,15 @@ int spi_write_flash_status(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	retval = spi_set_init_para(chip);
 	if (retval != STATUS_SUCCESS) {
 		spi_set_err_code(chip, SPI_HW_ERR);
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	retval = sf_enable_write(chip, ewsr);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	rtsx_init_cmd(chip);
 
@@ -871,7 +1028,8 @@ int spi_write_flash_status(struct scsi_cmnd *srb, struct rtsx_chip *chip)
 	if (retval != STATUS_SUCCESS) {
 		rtsx_clear_spi_error(chip);
 		spi_set_err_code(chip, SPI_HW_ERR);
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	return STATUS_SUCCESS;
diff --git a/drivers/staging/rts5208/trace.c b/drivers/staging/rts5208/trace.c
new file mode 100644
index 0000000..1bddbdf
--- /dev/null
+++ b/drivers/staging/rts5208/trace.c
@@ -0,0 +1,26 @@
+#include <linux/kernel.h>
+#include <linux/string.h>
+
+#include "rtsx.h"
+
+#ifdef _MSG_TRACE
+
+void _rtsx_trace(struct rtsx_chip *chip, const char *file, const char *func,
+		 int line)
+{
+	struct trace_msg_t *msg = &chip->trace_msg[chip->msg_idx];
+
+	file = kbasename(file);
+	dev_dbg(rtsx_dev(chip), "[%s][%s]:[%d]\n", file, func, line);
+
+	strncpy(msg->file, file, MSG_FILE_LEN - 1);
+	strncpy(msg->func, func, MSG_FUNC_LEN - 1);
+	msg->line = (u16)line;
+	get_current_time(msg->timeval_buf, TIME_VAL_LEN);
+	msg->valid = 1;
+
+	chip->msg_idx++;
+	if (chip->msg_idx >= TRACE_ITEM_CNT)
+		chip->msg_idx = 0;
+}
+#endif
diff --git a/drivers/staging/rts5208/trace.h b/drivers/staging/rts5208/trace.h
index a9ab407..5b80787 100644
--- a/drivers/staging/rts5208/trace.h
+++ b/drivers/staging/rts5208/trace.h
@@ -24,64 +24,17 @@
 #ifndef __REALTEK_RTSX_TRACE_H
 #define __REALTEK_RTSX_TRACE_H
 
-#define _MSG_TRACE
+struct rtsx_chip;
 
 #ifdef _MSG_TRACE
-static inline char *filename(char *path)
+void _rtsx_trace(struct rtsx_chip *chip, const char *file, const char *func,
+		 int line);
+#define rtsx_trace(chip)						\
+	_rtsx_trace(chip, __FILE__, __func__, __LINE__)
+#else
+static inline void rtsx_trace(struct rtsx_chip *chip)
 {
-	char *ptr;
-
-	if (path == NULL)
-		return NULL;
-
-	ptr = path;
-
-	while (*ptr != '\0') {
-		if ((*ptr == '\\') || (*ptr == '/'))
-			path = ptr + 1;
-
-		ptr++;
-	}
-
-	return path;
 }
-
-#define TRACE_RET(chip, ret)						\
-	do {								\
-		char *_file = filename(__FILE__);			\
-		dev_dbg(rtsx_dev(chip), "[%s][%s]:[%d]\n", _file,	\
-			__func__, __LINE__);				\
-		(chip)->trace_msg[(chip)->msg_idx].line = (u16)(__LINE__); \
-		strncpy((chip)->trace_msg[(chip)->msg_idx].func, __func__, MSG_FUNC_LEN-1); \
-		strncpy((chip)->trace_msg[(chip)->msg_idx].file, _file, MSG_FILE_LEN-1); \
-		get_current_time((chip)->trace_msg[(chip)->msg_idx].timeval_buf, TIME_VAL_LEN);	\
-		(chip)->trace_msg[(chip)->msg_idx].valid = 1;		\
-		(chip)->msg_idx++;					\
-		if ((chip)->msg_idx >= TRACE_ITEM_CNT) {		\
-			(chip)->msg_idx = 0;				\
-		}							\
-		return ret;						\
-	} while (0)
-
-#define TRACE_GOTO(chip, label)						\
-	do {								\
-		char *_file = filename(__FILE__);			\
-		dev_dbg(rtsx_dev(chip), "[%s][%s]:[%d]\n", _file,	\
-			__func__, __LINE__);				\
-		(chip)->trace_msg[(chip)->msg_idx].line = (u16)(__LINE__); \
-		strncpy((chip)->trace_msg[(chip)->msg_idx].func, __func__, MSG_FUNC_LEN-1); \
-		strncpy((chip)->trace_msg[(chip)->msg_idx].file, _file, MSG_FILE_LEN-1); \
-		get_current_time((chip)->trace_msg[(chip)->msg_idx].timeval_buf, TIME_VAL_LEN);	\
-		(chip)->trace_msg[(chip)->msg_idx].valid = 1;		\
-		(chip)->msg_idx++;					\
-		if ((chip)->msg_idx >= TRACE_ITEM_CNT) {		\
-			(chip)->msg_idx = 0;				\
-		}							\
-		goto label;						\
-	} while (0)
-#else
-#define TRACE_RET(chip, ret)	return ret
-#define TRACE_GOTO(chip, label)	goto label
 #endif
 
 #endif  /* __REALTEK_RTSX_TRACE_H */
diff --git a/drivers/staging/rts5208/xd.c b/drivers/staging/rts5208/xd.c
index 0d029fe..8fd108e 100644
--- a/drivers/staging/rts5208/xd.c
+++ b/drivers/staging/rts5208/xd.c
@@ -60,8 +60,10 @@ static int xd_set_init_para(struct rtsx_chip *chip)
 		xd_card->xd_clock = CLK_50;
 
 	retval = switch_clock(chip, xd_card->xd_clock);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	return STATUS_SUCCESS;
 }
@@ -72,12 +74,16 @@ static int xd_switch_clock(struct rtsx_chip *chip)
 	int retval;
 
 	retval = select_card(chip, XD_CARD);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	retval = switch_clock(chip, xd_card->xd_clock);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	return STATUS_SUCCESS;
 }
@@ -99,8 +105,10 @@ static int xd_read_id(struct rtsx_chip *chip, u8 id_cmd, u8 *id_buf, u8 buf_len)
 		rtsx_add_cmd(chip, READ_REG_CMD, (u16)(XD_ADDRESS1 + i), 0, 0);
 
 	retval = rtsx_send_cmd(chip, XD_CARD, 20);
-	if (retval < 0)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval < 0) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	ptr = rtsx_get_cmd_data(chip) + 1;
 	if (id_buf && buf_len) {
@@ -167,8 +175,10 @@ static int xd_read_redundant(struct rtsx_chip *chip, u32 page_addr,
 	rtsx_add_cmd(chip, READ_REG_CMD, XD_PARITY, 0, 0);
 
 	retval = rtsx_send_cmd(chip, XD_CARD, 500);
-	if (retval < 0)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval < 0) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	if (buf && buf_len) {
 		u8 *ptr = rtsx_get_cmd_data(chip) + 1;
@@ -186,8 +196,10 @@ static int xd_read_data_from_ppb(struct rtsx_chip *chip, int offset,
 {
 	int retval, i;
 
-	if (!buf || (buf_len < 0))
-		TRACE_RET(chip, STATUS_FAIL);
+	if (!buf || (buf_len < 0)) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	rtsx_init_cmd(chip);
 
@@ -198,7 +210,8 @@ static int xd_read_data_from_ppb(struct rtsx_chip *chip, int offset,
 	retval = rtsx_send_cmd(chip, 0, 250);
 	if (retval < 0) {
 		rtsx_clear_xd_error(chip);
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	memcpy(buf, rtsx_get_cmd_data(chip), buf_len);
@@ -212,8 +225,10 @@ static int xd_read_cis(struct rtsx_chip *chip, u32 page_addr, u8 *buf,
 	int retval;
 	u8 reg;
 
-	if (!buf || (buf_len < 10))
-		TRACE_RET(chip, STATUS_FAIL);
+	if (!buf || (buf_len < 10)) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	rtsx_init_cmd(chip);
 
@@ -233,25 +248,47 @@ static int xd_read_cis(struct rtsx_chip *chip, u32 page_addr, u8 *buf,
 	retval = rtsx_send_cmd(chip, XD_CARD, 250);
 	if (retval == -ETIMEDOUT) {
 		rtsx_clear_xd_error(chip);
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
-	RTSX_READ_REG(chip, XD_PAGE_STATUS, &reg);
+	retval = rtsx_read_register(chip, XD_PAGE_STATUS, &reg);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 	if (reg != XD_GPG) {
 		rtsx_clear_xd_error(chip);
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
-	RTSX_READ_REG(chip, XD_CTL, &reg);
+	retval = rtsx_read_register(chip, XD_CTL, &reg);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 	if (!(reg & XD_ECC1_ERROR) || !(reg & XD_ECC1_UNCORRECTABLE)) {
 		retval = xd_read_data_from_ppb(chip, 0, buf, buf_len);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 		if (reg & XD_ECC1_ERROR) {
 			u8 ecc_bit, ecc_byte;
 
-			RTSX_READ_REG(chip, XD_ECC_BIT1, &ecc_bit);
-			RTSX_READ_REG(chip, XD_ECC_BYTE1, &ecc_byte);
+			retval = rtsx_read_register(chip, XD_ECC_BIT1,
+						    &ecc_bit);
+			if (retval) {
+				rtsx_trace(chip);
+				return retval;
+			}
+			retval = rtsx_read_register(chip, XD_ECC_BYTE1,
+						    &ecc_byte);
+			if (retval) {
+				rtsx_trace(chip);
+				return retval;
+			}
 
 			dev_dbg(rtsx_dev(chip), "ECC_BIT1 = 0x%x, ECC_BYTE1 = 0x%x\n",
 				ecc_bit, ecc_byte);
@@ -267,13 +304,25 @@ static int xd_read_cis(struct rtsx_chip *chip, u32 page_addr, u8 *buf,
 		rtsx_clear_xd_error(chip);
 
 		retval = xd_read_data_from_ppb(chip, 256, buf, buf_len);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 		if (reg & XD_ECC2_ERROR) {
 			u8 ecc_bit, ecc_byte;
 
-			RTSX_READ_REG(chip, XD_ECC_BIT2, &ecc_bit);
-			RTSX_READ_REG(chip, XD_ECC_BYTE2, &ecc_byte);
+			retval = rtsx_read_register(chip, XD_ECC_BIT2,
+						    &ecc_bit);
+			if (retval) {
+				rtsx_trace(chip);
+				return retval;
+			}
+			retval = rtsx_read_register(chip, XD_ECC_BYTE2,
+						    &ecc_byte);
+			if (retval) {
+				rtsx_trace(chip);
+				return retval;
+			}
 
 			dev_dbg(rtsx_dev(chip), "ECC_BIT2 = 0x%x, ECC_BYTE2 = 0x%x\n",
 				ecc_bit, ecc_byte);
@@ -287,7 +336,8 @@ static int xd_read_cis(struct rtsx_chip *chip, u32 page_addr, u8 *buf,
 		}
 	} else {
 		rtsx_clear_xd_error(chip);
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	return STATUS_SUCCESS;
@@ -363,24 +413,71 @@ static void xd_fill_pull_ctl_enable(struct rtsx_chip *chip)
 
 static int xd_pull_ctl_disable(struct rtsx_chip *chip)
 {
+	int retval;
+
 	if (CHECK_PID(chip, 0x5208)) {
-		RTSX_WRITE_REG(chip, CARD_PULL_CTL1, 0xFF,
-			XD_D3_PD | XD_D2_PD | XD_D1_PD | XD_D0_PD);
-		RTSX_WRITE_REG(chip, CARD_PULL_CTL2, 0xFF,
-			XD_D7_PD | XD_D6_PD | XD_D5_PD | XD_D4_PD);
-		RTSX_WRITE_REG(chip, CARD_PULL_CTL3, 0xFF,
-			XD_WP_PD | XD_CE_PD | XD_CLE_PD | XD_CD_PU);
-		RTSX_WRITE_REG(chip, CARD_PULL_CTL4, 0xFF,
-			XD_RDY_PD | XD_WE_PD | XD_RE_PD | XD_ALE_PD);
-		RTSX_WRITE_REG(chip, CARD_PULL_CTL5, 0xFF,
-			MS_INS_PU | SD_WP_PD | SD_CD_PU | SD_CMD_PD);
-		RTSX_WRITE_REG(chip, CARD_PULL_CTL6, 0xFF, MS_D5_PD | MS_D4_PD);
+		retval = rtsx_write_register(chip, CARD_PULL_CTL1, 0xFF,
+					     XD_D3_PD | XD_D2_PD | XD_D1_PD | XD_D0_PD);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
+		retval = rtsx_write_register(chip, CARD_PULL_CTL2, 0xFF,
+					     XD_D7_PD | XD_D6_PD | XD_D5_PD | XD_D4_PD);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
+		retval = rtsx_write_register(chip, CARD_PULL_CTL3, 0xFF,
+					     XD_WP_PD | XD_CE_PD | XD_CLE_PD | XD_CD_PU);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
+		retval = rtsx_write_register(chip, CARD_PULL_CTL4, 0xFF,
+					     XD_RDY_PD | XD_WE_PD | XD_RE_PD | XD_ALE_PD);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
+		retval = rtsx_write_register(chip, CARD_PULL_CTL5, 0xFF,
+					     MS_INS_PU | SD_WP_PD | SD_CD_PU | SD_CMD_PD);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
+		retval = rtsx_write_register(chip, CARD_PULL_CTL6, 0xFF,
+					     MS_D5_PD | MS_D4_PD);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
 	} else if (CHECK_PID(chip, 0x5288)) {
 		if (CHECK_BARO_PKG(chip, QFN)) {
-			RTSX_WRITE_REG(chip, CARD_PULL_CTL1, 0xFF, 0x55);
-			RTSX_WRITE_REG(chip, CARD_PULL_CTL2, 0xFF, 0x55);
-			RTSX_WRITE_REG(chip, CARD_PULL_CTL3, 0xFF, 0x4B);
-			RTSX_WRITE_REG(chip, CARD_PULL_CTL4, 0xFF, 0x69);
+			retval = rtsx_write_register(chip, CARD_PULL_CTL1,
+						     0xFF, 0x55);
+			if (retval) {
+				rtsx_trace(chip);
+				return retval;
+			}
+			retval = rtsx_write_register(chip, CARD_PULL_CTL2,
+						     0xFF, 0x55);
+			if (retval) {
+				rtsx_trace(chip);
+				return retval;
+			}
+			retval = rtsx_write_register(chip, CARD_PULL_CTL3,
+						     0xFF, 0x4B);
+			if (retval) {
+				rtsx_trace(chip);
+				return retval;
+			}
+			retval = rtsx_write_register(chip, CARD_PULL_CTL4,
+						     0xFF, 0x69);
+			if (retval) {
+				rtsx_trace(chip);
+				return retval;
+			}
 		}
 	}
 
@@ -394,8 +491,10 @@ static int reset_xd(struct rtsx_chip *chip)
 	u8 *ptr, id_buf[4], redunt[11];
 
 	retval = select_card(chip, XD_CARD);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	rtsx_init_cmd(chip);
 
@@ -418,13 +517,17 @@ static int reset_xd(struct rtsx_chip *chip)
 	rtsx_add_cmd(chip, WRITE_REG_CMD, CARD_OE, XD_OUTPUT_EN, 0);
 
 	retval = rtsx_send_cmd(chip, XD_CARD, 100);
-	if (retval < 0)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval < 0) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	if (!chip->ft2_fast_mode) {
 		retval = card_power_off(chip, XD_CARD);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 
 		wait_timeout(250);
 
@@ -439,19 +542,24 @@ static int reset_xd(struct rtsx_chip *chip)
 		}
 
 		retval = rtsx_send_cmd(chip, XD_CARD, 100);
-		if (retval < 0)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval < 0) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 
 		retval = card_power_on(chip, XD_CARD);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 
 #ifdef SUPPORT_OCP
 		wait_timeout(50);
 		if (chip->ocp_stat & (SD_OC_NOW | SD_OC_EVER)) {
 			dev_dbg(rtsx_dev(chip), "Over current, OCPSTAT is 0x%x\n",
 				chip->ocp_stat);
-			TRACE_RET(chip, STATUS_FAIL);
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		}
 #endif
 	}
@@ -472,15 +580,19 @@ static int reset_xd(struct rtsx_chip *chip)
 	rtsx_add_cmd(chip, WRITE_REG_CMD, XD_CTL, XD_CE_DISEN, XD_CE_DISEN);
 
 	retval = rtsx_send_cmd(chip, XD_CARD, 100);
-	if (retval < 0)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval < 0) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	if (!chip->ft2_fast_mode)
 		wait_timeout(200);
 
 	retval = xd_set_init_para(chip);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	/* Read ID to check if the timing setting is right */
 	for (i = 0; i < 4; i++) {
@@ -502,8 +614,10 @@ static int reset_xd(struct rtsx_chip *chip)
 		rtsx_add_cmd(chip, READ_REG_CMD, XD_CTL, 0, 0);
 
 		retval = rtsx_send_cmd(chip, XD_CARD, 100);
-		if (retval < 0)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval < 0) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 
 		ptr = rtsx_get_cmd_data(chip) + 1;
 
@@ -515,8 +629,10 @@ static int reset_xd(struct rtsx_chip *chip)
 			continue;
 
 		retval = xd_read_id(chip, READ_ID, id_buf, 4);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 
 		dev_dbg(rtsx_dev(chip), "READ_ID: 0x%x 0x%x 0x%x 0x%x\n",
 			id_buf[0], id_buf[1], id_buf[2], id_buf[3]);
@@ -596,8 +712,10 @@ static int reset_xd(struct rtsx_chip *chip)
 		/* Confirm timing setting */
 		for (j = 0; j < 10; j++) {
 			retval = xd_read_id(chip, READ_ID, id_buf, 4);
-			if (retval != STATUS_SUCCESS)
-				TRACE_RET(chip, STATUS_FAIL);
+			if (retval != STATUS_SUCCESS) {
+				rtsx_trace(chip);
+				return STATUS_FAIL;
+			}
 
 			if (id_buf[1] != xd_card->device_code)
 				break;
@@ -613,23 +731,30 @@ static int reset_xd(struct rtsx_chip *chip)
 		xd_card->addr_cycle = 0;
 		xd_card->capacity = 0;
 
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	retval = xd_read_id(chip, READ_xD_ID, id_buf, 4);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 	dev_dbg(rtsx_dev(chip), "READ_xD_ID: 0x%x 0x%x 0x%x 0x%x\n",
 		id_buf[0], id_buf[1], id_buf[2], id_buf[3]);
-	if (id_buf[2] != XD_ID_CODE)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (id_buf[2] != XD_ID_CODE) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	/* Search CIS block */
 	for (i = 0; i < 24; i++) {
 		u32 page_addr;
 
-		if (detect_card_cd(chip, XD_CARD) != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (detect_card_cd(chip, XD_CARD) != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 
 		page_addr = (u32)i << xd_card->block_shift;
 
@@ -667,8 +792,10 @@ static int reset_xd(struct rtsx_chip *chip)
 			page_addr += j;
 
 			retval = xd_read_cis(chip, page_addr, buf, 10);
-			if (retval != STATUS_SUCCESS)
-				TRACE_RET(chip, STATUS_FAIL);
+			if (retval != STATUS_SUCCESS) {
+				rtsx_trace(chip);
+				return STATUS_FAIL;
+			}
 
 			if ((buf[0] == 0x01) && (buf[1] == 0x03) &&
 				(buf[2] == 0xD9)
@@ -684,8 +811,10 @@ static int reset_xd(struct rtsx_chip *chip)
 	}
 
 	dev_dbg(rtsx_dev(chip), "CIS block: 0x%x\n", xd_card->cis_block);
-	if (xd_card->cis_block == 0xFFFF)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (xd_card->cis_block == 0xFFFF) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	chip->capacity[chip->card2lun[XD_CARD]] = xd_card->capacity;
 
@@ -739,15 +868,19 @@ static int xd_init_l2p_tbl(struct rtsx_chip *chip)
 	dev_dbg(rtsx_dev(chip), "xd_init_l2p_tbl: zone_cnt = %d\n",
 		xd_card->zone_cnt);
 
-	if (xd_card->zone_cnt < 1)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (xd_card->zone_cnt < 1) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	size = xd_card->zone_cnt * sizeof(struct zone_entry);
 	dev_dbg(rtsx_dev(chip), "Buffer size for l2p table is %d\n", size);
 
 	xd_card->zone = vmalloc(size);
-	if (!xd_card->zone)
-		TRACE_RET(chip, STATUS_ERROR);
+	if (!xd_card->zone) {
+		rtsx_trace(chip);
+		return STATUS_ERROR;
+	}
 
 	for (i = 0; i < xd_card->zone_cnt; i++) {
 		xd_card->zone[i].build_flag = 0;
@@ -927,16 +1060,22 @@ int reset_xd_card(struct rtsx_chip *chip)
 	xd_card->delay_write.delay_write_flag = 0;
 
 	retval = enable_card_clock(chip, XD_CARD);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	retval = reset_xd(chip);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	retval = xd_init_l2p_tbl(chip);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	return STATUS_SUCCESS;
 }
@@ -950,8 +1089,10 @@ static int xd_mark_bad_block(struct rtsx_chip *chip, u32 phy_blk)
 
 	dev_dbg(rtsx_dev(chip), "mark block 0x%x as bad block\n", phy_blk);
 
-	if (phy_blk == BLK_NOT_FOUND)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (phy_blk == BLK_NOT_FOUND) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	rtsx_init_cmd(chip);
 
@@ -986,7 +1127,8 @@ static int xd_mark_bad_block(struct rtsx_chip *chip, u32 phy_blk)
 			xd_set_err_code(chip, XD_PRG_ERROR);
 		else
 			xd_set_err_code(chip, XD_TO_ERROR);
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	return STATUS_SUCCESS;
@@ -1002,10 +1144,14 @@ static int xd_init_page(struct rtsx_chip *chip, u32 phy_blk,
 
 	dev_dbg(rtsx_dev(chip), "Init block 0x%x\n", phy_blk);
 
-	if (start_page > end_page)
-		TRACE_RET(chip, STATUS_FAIL);
-	if (phy_blk == BLK_NOT_FOUND)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (start_page > end_page) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
+	if (phy_blk == BLK_NOT_FOUND) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	rtsx_init_cmd(chip);
 
@@ -1040,7 +1186,8 @@ static int xd_init_page(struct rtsx_chip *chip, u32 phy_blk,
 		} else {
 			xd_set_err_code(chip, XD_TO_ERROR);
 		}
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	return STATUS_SUCCESS;
@@ -1057,24 +1204,34 @@ static int xd_copy_page(struct rtsx_chip *chip, u32 old_blk, u32 new_blk,
 	dev_dbg(rtsx_dev(chip), "Copy page from block 0x%x to block 0x%x\n",
 		old_blk, new_blk);
 
-	if (start_page > end_page)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (start_page > end_page) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
-	if ((old_blk == BLK_NOT_FOUND) || (new_blk == BLK_NOT_FOUND))
-		TRACE_RET(chip, STATUS_FAIL);
+	if ((old_blk == BLK_NOT_FOUND) || (new_blk == BLK_NOT_FOUND)) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	old_page = (old_blk << xd_card->block_shift) + start_page;
 	new_page = (new_blk << xd_card->block_shift) + start_page;
 
 	XD_CLR_BAD_NEWBLK(xd_card);
 
-	RTSX_WRITE_REG(chip, CARD_DATA_SOURCE, 0x01, PINGPONG_BUFFER);
+	retval = rtsx_write_register(chip, CARD_DATA_SOURCE, 0x01,
+				     PINGPONG_BUFFER);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 
 	for (i = start_page; i < end_page; i++) {
 		if (detect_card_cd(chip, XD_CARD) != STATUS_SUCCESS) {
 			rtsx_clear_xd_error(chip);
 			xd_set_err_code(chip, XD_NO_CARD);
-			TRACE_RET(chip, STATUS_FAIL);
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		}
 
 		rtsx_init_cmd(chip);
@@ -1100,7 +1257,8 @@ static int xd_copy_page(struct rtsx_chip *chip, u32 old_blk, u32 new_blk,
 				if (detect_card_cd(chip,
 					XD_CARD) != STATUS_SUCCESS) {
 					xd_set_err_code(chip, XD_NO_CARD);
-					TRACE_RET(chip, STATUS_FAIL);
+					rtsx_trace(chip);
+					return STATUS_FAIL;
 				}
 
 				if (((reg & (XD_ECC1_ERROR | XD_ECC1_UNCORRECTABLE)) ==
@@ -1119,7 +1277,8 @@ static int xd_copy_page(struct rtsx_chip *chip, u32 old_blk, u32 new_blk,
 				}
 			} else {
 				xd_set_err_code(chip, XD_TO_ERROR);
-				TRACE_RET(chip, STATUS_FAIL);
+				rtsx_trace(chip);
+				return STATUS_FAIL;
 			}
 		}
 
@@ -1147,7 +1306,8 @@ static int xd_copy_page(struct rtsx_chip *chip, u32 old_blk, u32 new_blk,
 			} else {
 				xd_set_err_code(chip, XD_TO_ERROR);
 			}
-			TRACE_RET(chip, STATUS_FAIL);
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		}
 
 		old_page++;
@@ -1172,14 +1332,17 @@ static int xd_reset_cmd(struct rtsx_chip *chip)
 	rtsx_add_cmd(chip, READ_REG_CMD, XD_CTL, 0, 0);
 
 	retval = rtsx_send_cmd(chip, XD_CARD, 100);
-	if (retval < 0)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval < 0) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	ptr = rtsx_get_cmd_data(chip) + 1;
 	if (((ptr[0] & READY_FLAG) == READY_STATE) && (ptr[1] & XD_RDY))
 		return STATUS_SUCCESS;
 
-	TRACE_RET(chip, STATUS_FAIL);
+	rtsx_trace(chip);
+	return STATUS_FAIL;
 }
 
 static int xd_erase_block(struct rtsx_chip *chip, u32 phy_blk)
@@ -1189,8 +1352,10 @@ static int xd_erase_block(struct rtsx_chip *chip, u32 phy_blk)
 	u8 reg = 0, *ptr;
 	int i, retval;
 
-	if (phy_blk == BLK_NOT_FOUND)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (phy_blk == BLK_NOT_FOUND) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	page_addr = phy_blk << xd_card->block_shift;
 
@@ -1212,13 +1377,16 @@ static int xd_erase_block(struct rtsx_chip *chip, u32 phy_blk)
 			if (reg & PROGRAM_ERROR) {
 				xd_mark_bad_block(chip, phy_blk);
 				xd_set_err_code(chip, XD_PRG_ERROR);
-				TRACE_RET(chip, STATUS_FAIL);
+				rtsx_trace(chip);
+				return STATUS_FAIL;
 			} else {
 				xd_set_err_code(chip, XD_ERASE_FAIL);
 			}
 			retval = xd_reset_cmd(chip);
-			if (retval != STATUS_SUCCESS)
-				TRACE_RET(chip, STATUS_FAIL);
+			if (retval != STATUS_SUCCESS) {
+				rtsx_trace(chip);
+				return STATUS_FAIL;
+			}
 			continue;
 		}
 
@@ -1226,7 +1394,8 @@ static int xd_erase_block(struct rtsx_chip *chip, u32 phy_blk)
 		if (*ptr & PROGRAM_ERROR) {
 			xd_mark_bad_block(chip, phy_blk);
 			xd_set_err_code(chip, XD_PRG_ERROR);
-			TRACE_RET(chip, STATUS_FAIL);
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		}
 
 		return STATUS_SUCCESS;
@@ -1234,7 +1403,8 @@ static int xd_erase_block(struct rtsx_chip *chip, u32 phy_blk)
 
 	xd_mark_bad_block(chip, phy_blk);
 	xd_set_err_code(chip, XD_ERASE_FAIL);
-	TRACE_RET(chip, STATUS_FAIL);
+	rtsx_trace(chip);
+	return STATUS_FAIL;
 }
 
 
@@ -1266,15 +1436,19 @@ static int xd_build_l2p_tbl(struct rtsx_chip *chip, int zone_no)
 
 	if (zone->l2p_table == NULL) {
 		zone->l2p_table = vmalloc(2000);
-		if (zone->l2p_table == NULL)
-			TRACE_GOTO(chip, Build_Fail);
+		if (zone->l2p_table == NULL) {
+			rtsx_trace(chip);
+			goto Build_Fail;
+		}
 	}
 	memset((u8 *)(zone->l2p_table), 0xff, 2000);
 
 	if (zone->free_table == NULL) {
 		zone->free_table = vmalloc(XD_FREE_TABLE_CNT * 2);
-		if (zone->free_table == NULL)
-			TRACE_GOTO(chip, Build_Fail);
+		if (zone->free_table == NULL) {
+			rtsx_trace(chip);
+			goto Build_Fail;
+		}
 	}
 	memset((u8 *)(zone->free_table), 0xff, XD_FREE_TABLE_CNT * 2);
 
@@ -1440,8 +1614,10 @@ static int xd_send_cmd(struct rtsx_chip *chip, u8 cmd)
 		XD_TRANSFER_END, XD_TRANSFER_END);
 
 	retval = rtsx_send_cmd(chip, XD_CARD, 200);
-	if (retval < 0)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval < 0) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	return STATUS_SUCCESS;
 }
@@ -1457,8 +1633,10 @@ static int xd_read_multiple_pages(struct rtsx_chip *chip, u32 phy_blk,
 	u8 reg_val, page_cnt;
 	int zone_no, retval, i;
 
-	if (start_page > end_page)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (start_page > end_page) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	page_cnt = end_page - start_page;
 	zone_no = (int)(log_blk / 1000);
@@ -1474,7 +1652,8 @@ static int xd_read_multiple_pages(struct rtsx_chip *chip, u32 phy_blk,
 
 			if (detect_card_cd(chip, XD_CARD) != STATUS_SUCCESS) {
 				xd_set_err_code(chip, XD_NO_CARD);
-				TRACE_RET(chip, STATUS_FAIL);
+				rtsx_trace(chip);
+				return STATUS_FAIL;
 			}
 		}
 	}
@@ -1509,21 +1688,31 @@ static int xd_read_multiple_pages(struct rtsx_chip *chip, u32 phy_blk,
 
 		if (retval == -ETIMEDOUT) {
 			xd_set_err_code(chip, XD_TO_ERROR);
-			TRACE_RET(chip, STATUS_FAIL);
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		} else {
-			TRACE_GOTO(chip, Fail);
+			rtsx_trace(chip);
+			goto Fail;
 		}
 	}
 
 	return STATUS_SUCCESS;
 
 Fail:
-	RTSX_READ_REG(chip, XD_PAGE_STATUS, &reg_val);
+	retval = rtsx_read_register(chip, XD_PAGE_STATUS, &reg_val);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 
 	if (reg_val !=  XD_GPG)
 		xd_set_err_code(chip, XD_PRG_ERROR);
 
-	RTSX_READ_REG(chip, XD_CTL, &reg_val);
+	retval = rtsx_read_register(chip, XD_CTL, &reg_val);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 
 	if (((reg_val & (XD_ECC1_ERROR | XD_ECC1_UNCORRECTABLE))
 				== (XD_ECC1_ERROR | XD_ECC1_UNCORRECTABLE))
@@ -1533,7 +1722,8 @@ Fail:
 
 		if (detect_card_cd(chip, XD_CARD) != STATUS_SUCCESS) {
 			xd_set_err_code(chip, XD_NO_CARD);
-			TRACE_RET(chip, STATUS_FAIL);
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		}
 
 		xd_set_err_code(chip, XD_ECC_ERROR);
@@ -1541,7 +1731,8 @@ Fail:
 		new_blk = xd_get_unused_block(chip, zone_no);
 		if (new_blk == NO_NEW_BLK) {
 			XD_CLR_BAD_OLDBLK(xd_card);
-			TRACE_RET(chip, STATUS_FAIL);
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		}
 
 		retval = xd_copy_page(chip, phy_blk, new_blk, 0,
@@ -1555,7 +1746,8 @@ Fail:
 				XD_CLR_BAD_NEWBLK(xd_card);
 			}
 			XD_CLR_BAD_OLDBLK(xd_card);
-			TRACE_RET(chip, STATUS_FAIL);
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		}
 		xd_set_l2p_tbl(chip, zone_no, log_off, (u16)(new_blk & 0x3FF));
 		xd_erase_block(chip, phy_blk);
@@ -1563,7 +1755,8 @@ Fail:
 		XD_CLR_BAD_OLDBLK(xd_card);
 	}
 
-	TRACE_RET(chip, STATUS_FAIL);
+	rtsx_trace(chip);
+	return STATUS_FAIL;
 }
 
 static int xd_finish_write(struct rtsx_chip *chip,
@@ -1576,8 +1769,10 @@ static int xd_finish_write(struct rtsx_chip *chip,
 	dev_dbg(rtsx_dev(chip), "xd_finish_write, old_blk = 0x%x, new_blk = 0x%x, log_blk = 0x%x\n",
 		old_blk, new_blk, log_blk);
 
-	if (page_off > xd_card->page_off)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (page_off > xd_card->page_off) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	zone_no = (int)(log_blk / 1000);
 	log_off = (u16)(log_blk % 1000);
@@ -1589,7 +1784,8 @@ static int xd_finish_write(struct rtsx_chip *chip,
 			retval = xd_erase_block(chip, new_blk);
 			if (retval == STATUS_SUCCESS)
 				xd_set_unused_block(chip, new_blk);
-			TRACE_RET(chip, STATUS_FAIL);
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		}
 	} else {
 		retval = xd_copy_page(chip, old_blk, new_blk,
@@ -1601,7 +1797,8 @@ static int xd_finish_write(struct rtsx_chip *chip,
 					xd_set_unused_block(chip, new_blk);
 			}
 			XD_CLR_BAD_NEWBLK(xd_card);
-			TRACE_RET(chip, STATUS_FAIL);
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		}
 
 		retval = xd_erase_block(chip, old_blk);
@@ -1633,8 +1830,10 @@ static int xd_prepare_write(struct rtsx_chip *chip,
 
 	if (page_off) {
 		retval = xd_copy_page(chip, old_blk, new_blk, 0, page_off);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 	}
 
 	return STATUS_SUCCESS;
@@ -1655,8 +1854,10 @@ static int xd_write_multiple_pages(struct rtsx_chip *chip, u32 old_blk,
 	dev_dbg(rtsx_dev(chip), "%s, old_blk = 0x%x, new_blk = 0x%x, log_blk = 0x%x\n",
 		__func__, old_blk, new_blk, log_blk);
 
-	if (start_page > end_page)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (start_page > end_page) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	page_cnt = end_page - start_page;
 	zone_no = (int)(log_blk / 1000);
@@ -1665,8 +1866,10 @@ static int xd_write_multiple_pages(struct rtsx_chip *chip, u32 old_blk,
 	page_addr = (new_blk << xd_card->block_shift) + start_page;
 
 	retval = xd_send_cmd(chip, READ1_1);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	rtsx_init_cmd(chip);
 
@@ -1701,9 +1904,11 @@ static int xd_write_multiple_pages(struct rtsx_chip *chip, u32 old_blk,
 
 		if (retval == -ETIMEDOUT) {
 			xd_set_err_code(chip, XD_TO_ERROR);
-			TRACE_RET(chip, STATUS_FAIL);
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		} else {
-			TRACE_GOTO(chip, Fail);
+			rtsx_trace(chip);
+			goto Fail;
 		}
 	}
 
@@ -1730,13 +1935,18 @@ static int xd_write_multiple_pages(struct rtsx_chip *chip, u32 old_blk,
 	return STATUS_SUCCESS;
 
 Fail:
-	RTSX_READ_REG(chip, XD_DAT, &reg_val);
+	retval = rtsx_read_register(chip, XD_DAT, &reg_val);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 	if (reg_val & PROGRAM_ERROR) {
 		xd_set_err_code(chip, XD_PRG_ERROR);
 		xd_mark_bad_block(chip, new_blk);
 	}
 
-	TRACE_RET(chip, STATUS_FAIL);
+	rtsx_trace(chip);
+	return STATUS_FAIL;
 }
 
 #ifdef XD_DELAY_WRITE
@@ -1749,16 +1959,20 @@ int xd_delay_write(struct rtsx_chip *chip)
 	if (delay_write->delay_write_flag) {
 		dev_dbg(rtsx_dev(chip), "xd_delay_write\n");
 		retval = xd_switch_clock(chip);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 
 		delay_write->delay_write_flag = 0;
 		retval = xd_finish_write(chip,
 				delay_write->old_phyblock,
 					delay_write->new_phyblock,
 				delay_write->logblock, delay_write->pageoff);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 	}
 
 	return STATUS_SUCCESS;
@@ -1790,14 +2004,17 @@ int xd_rw(struct scsi_cmnd *srb, struct rtsx_chip *chip,
 	ptr = (u8 *)scsi_sglist(srb);
 
 	retval = xd_switch_clock(chip);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 
 	if (detect_card_cd(chip, XD_CARD) != STATUS_SUCCESS) {
 		chip->card_fail |= XD_CARD;
 		set_sense_type(chip, lun, SENSE_TYPE_MEDIA_NOT_PRESENT);
-		TRACE_RET(chip, STATUS_FAIL);
+		rtsx_trace(chip);
+		return STATUS_FAIL;
 	}
 
 	log_blk = start_sector >> xd_card->block_shift;
@@ -1810,7 +2027,8 @@ int xd_rw(struct scsi_cmnd *srb, struct rtsx_chip *chip,
 		if (retval != STATUS_SUCCESS) {
 			chip->card_fail |= XD_CARD;
 			set_sense_type(chip, lun, SENSE_TYPE_MEDIA_NOT_PRESENT);
-			TRACE_RET(chip, STATUS_FAIL);
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		}
 	}
 
@@ -1828,7 +2046,8 @@ int xd_rw(struct scsi_cmnd *srb, struct rtsx_chip *chip,
 				if (retval != STATUS_SUCCESS) {
 					set_sense_type(chip, lun,
 						SENSE_TYPE_MEDIA_WRITE_ERR);
-					TRACE_RET(chip, STATUS_FAIL);
+					rtsx_trace(chip);
+					return STATUS_FAIL;
 				}
 			}
 			old_blk = delay_write->old_phyblock;
@@ -1844,7 +2063,8 @@ int xd_rw(struct scsi_cmnd *srb, struct rtsx_chip *chip,
 			if (retval != STATUS_SUCCESS) {
 				set_sense_type(chip, lun,
 					SENSE_TYPE_MEDIA_WRITE_ERR);
-				TRACE_RET(chip, STATUS_FAIL);
+				rtsx_trace(chip);
+				return STATUS_FAIL;
 			}
 #endif
 			old_blk = xd_get_l2p_tbl(chip, zone_no, log_off);
@@ -1853,7 +2073,8 @@ int xd_rw(struct scsi_cmnd *srb, struct rtsx_chip *chip,
 				(new_blk == BLK_NOT_FOUND)) {
 				set_sense_type(chip, lun,
 					SENSE_TYPE_MEDIA_WRITE_ERR);
-				TRACE_RET(chip, STATUS_FAIL);
+				rtsx_trace(chip);
+				return STATUS_FAIL;
 			}
 
 			retval = xd_prepare_write(chip, old_blk, new_blk,
@@ -1863,11 +2084,13 @@ int xd_rw(struct scsi_cmnd *srb, struct rtsx_chip *chip,
 					STATUS_SUCCESS) {
 					set_sense_type(chip, lun,
 						SENSE_TYPE_MEDIA_NOT_PRESENT);
-					TRACE_RET(chip, STATUS_FAIL);
+					rtsx_trace(chip);
+					return STATUS_FAIL;
 				}
 				set_sense_type(chip, lun,
 					SENSE_TYPE_MEDIA_WRITE_ERR);
-				TRACE_RET(chip, STATUS_FAIL);
+				rtsx_trace(chip);
+				return STATUS_FAIL;
 			}
 #ifdef XD_DELAY_WRITE
 		}
@@ -1879,11 +2102,13 @@ int xd_rw(struct scsi_cmnd *srb, struct rtsx_chip *chip,
 			if (detect_card_cd(chip, XD_CARD) != STATUS_SUCCESS) {
 				set_sense_type(chip, lun,
 					SENSE_TYPE_MEDIA_NOT_PRESENT);
-				TRACE_RET(chip, STATUS_FAIL);
+				rtsx_trace(chip);
+				return STATUS_FAIL;
 			}
 			set_sense_type(chip, lun,
 				SENSE_TYPE_MEDIA_UNRECOVER_READ_ERR);
-			TRACE_RET(chip, STATUS_FAIL);
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		}
 #endif
 
@@ -1891,7 +2116,8 @@ int xd_rw(struct scsi_cmnd *srb, struct rtsx_chip *chip,
 		if (old_blk == BLK_NOT_FOUND) {
 			set_sense_type(chip, lun,
 				SENSE_TYPE_MEDIA_UNRECOVER_READ_ERR);
-			TRACE_RET(chip, STATUS_FAIL);
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		}
 	}
 
@@ -1901,7 +2127,8 @@ int xd_rw(struct scsi_cmnd *srb, struct rtsx_chip *chip,
 		if (detect_card_cd(chip, XD_CARD) != STATUS_SUCCESS) {
 			chip->card_fail |= XD_CARD;
 			set_sense_type(chip, lun, SENSE_TYPE_MEDIA_NOT_PRESENT);
-			TRACE_RET(chip, STATUS_FAIL);
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		}
 
 		if ((start_page + total_sec_cnt) > (xd_card->page_off + 1))
@@ -1917,7 +2144,8 @@ int xd_rw(struct scsi_cmnd *srb, struct rtsx_chip *chip,
 			if (retval != STATUS_SUCCESS) {
 				set_sense_type(chip, lun,
 					SENSE_TYPE_MEDIA_UNRECOVER_READ_ERR);
-				TRACE_RET(chip, STATUS_FAIL);
+				rtsx_trace(chip);
+				return STATUS_FAIL;
 			}
 		} else {
 			retval = xd_write_multiple_pages(chip, old_blk,
@@ -1927,7 +2155,8 @@ int xd_rw(struct scsi_cmnd *srb, struct rtsx_chip *chip,
 			if (retval != STATUS_SUCCESS) {
 				set_sense_type(chip, lun,
 					SENSE_TYPE_MEDIA_WRITE_ERR);
-				TRACE_RET(chip, STATUS_FAIL);
+				rtsx_trace(chip);
+				return STATUS_FAIL;
 			}
 		}
 
@@ -1948,7 +2177,8 @@ int xd_rw(struct scsi_cmnd *srb, struct rtsx_chip *chip,
 				chip->card_fail |= XD_CARD;
 				set_sense_type(chip, lun,
 					SENSE_TYPE_MEDIA_NOT_PRESENT);
-				TRACE_RET(chip, STATUS_FAIL);
+				rtsx_trace(chip);
+				return STATUS_FAIL;
 			}
 		}
 
@@ -1961,7 +2191,8 @@ int xd_rw(struct scsi_cmnd *srb, struct rtsx_chip *chip,
 				set_sense_type(chip, lun,
 					SENSE_TYPE_MEDIA_WRITE_ERR);
 
-			TRACE_RET(chip, STATUS_FAIL);
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		}
 
 		if (srb->sc_data_direction == DMA_TO_DEVICE) {
@@ -1969,7 +2200,8 @@ int xd_rw(struct scsi_cmnd *srb, struct rtsx_chip *chip,
 			if (new_blk == BLK_NOT_FOUND) {
 				set_sense_type(chip, lun,
 					SENSE_TYPE_MEDIA_WRITE_ERR);
-				TRACE_RET(chip, STATUS_FAIL);
+				rtsx_trace(chip);
+				return STATUS_FAIL;
 			}
 		}
 
@@ -1988,7 +2220,8 @@ int xd_rw(struct scsi_cmnd *srb, struct rtsx_chip *chip,
 		if (detect_card_cd(chip, XD_CARD) != STATUS_SUCCESS) {
 			chip->card_fail |= XD_CARD;
 			set_sense_type(chip, lun, SENSE_TYPE_MEDIA_NOT_PRESENT);
-			TRACE_RET(chip, STATUS_FAIL);
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		}
 
 		retval = xd_finish_write(chip, old_blk, new_blk,
@@ -1997,10 +2230,12 @@ int xd_rw(struct scsi_cmnd *srb, struct rtsx_chip *chip,
 			if (detect_card_cd(chip, XD_CARD) != STATUS_SUCCESS) {
 				set_sense_type(chip, lun,
 					SENSE_TYPE_MEDIA_NOT_PRESENT);
-				TRACE_RET(chip, STATUS_FAIL);
+				rtsx_trace(chip);
+				return STATUS_FAIL;
 			}
 			set_sense_type(chip, lun, SENSE_TYPE_MEDIA_WRITE_ERR);
-			TRACE_RET(chip, STATUS_FAIL);
+			rtsx_trace(chip);
+			return STATUS_FAIL;
 		}
 #endif
 	}
@@ -2049,25 +2284,39 @@ int xd_power_off_card3v3(struct rtsx_chip *chip)
 	int retval;
 
 	retval = disable_card_clock(chip, XD_CARD);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
-	RTSX_WRITE_REG(chip, CARD_OE, XD_OUTPUT_EN, 0);
+	retval = rtsx_write_register(chip, CARD_OE, XD_OUTPUT_EN, 0);
+	if (retval) {
+		rtsx_trace(chip);
+		return retval;
+	}
 
 	if (!chip->ft2_fast_mode) {
 		retval = card_power_off(chip, XD_CARD);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 
 		wait_timeout(50);
 	}
 
 	if (chip->asic_code) {
 		retval = xd_pull_ctl_disable(chip);
-		if (retval != STATUS_SUCCESS)
-			TRACE_RET(chip, STATUS_FAIL);
+		if (retval != STATUS_SUCCESS) {
+			rtsx_trace(chip);
+			return STATUS_FAIL;
+		}
 	} else {
-		RTSX_WRITE_REG(chip, FPGA_PULL_CTL, 0xFF, 0xDF);
+		retval = rtsx_write_register(chip, FPGA_PULL_CTL, 0xFF, 0xDF);
+		if (retval) {
+			rtsx_trace(chip);
+			return retval;
+		}
 	}
 
 	return STATUS_SUCCESS;
@@ -2087,8 +2336,10 @@ int release_xd_card(struct rtsx_chip *chip)
 	xd_free_l2p_tbl(chip);
 
 	retval = xd_power_off_card3v3(chip);
-	if (retval != STATUS_SUCCESS)
-		TRACE_RET(chip, STATUS_FAIL);
+	if (retval != STATUS_SUCCESS) {
+		rtsx_trace(chip);
+		return STATUS_FAIL;
+	}
 
 	return STATUS_SUCCESS;
 }
diff --git a/drivers/staging/skein/skein_block.c b/drivers/staging/skein/skein_block.c
index 9bd69ce..b0cd935 100644
--- a/drivers/staging/skein/skein_block.c
+++ b/drivers/staging/skein/skein_block.c
@@ -68,9 +68,7 @@ do {                                         \
 
 #if SKEIN_UNROLL_256 == 0
 #define R256(p0, p1, p2, p3, ROT, r_num) /* fully unrolled */ \
-do {                                                          \
-	ROUND256(p0, p1, p2, p3, ROT, r_num);                 \
-} while (0)
+	ROUND256(p0, p1, p2, p3, ROT, r_num)
 
 #define I256(R)                                                           \
 do {                                                                      \
@@ -152,9 +150,7 @@ do {                                                         \
 
 #if SKEIN_UNROLL_512 == 0
 #define R512(p0, p1, p2, p3, p4, p5, p6, p7, ROT, r_num) /* unrolled */ \
-do {                                                                    \
-	ROUND512(p0, p1, p2, p3, p4, p5, p6, p7, ROT, r_num);           \
-} while (0)
+	ROUND512(p0, p1, p2, p3, p4, p5, p6, p7, ROT, r_num)
 
 #define I512(R)                                                           \
 do {                                                                      \
diff --git a/drivers/staging/slicoss/slicoss.c b/drivers/staging/slicoss/slicoss.c
index 42d62ef..c2bda1d 100644
--- a/drivers/staging/slicoss/slicoss.c
+++ b/drivers/staging/slicoss/slicoss.c
@@ -84,7 +84,6 @@
 #include <linux/seq_file.h>
 #include <linux/kthread.h>
 #include <linux/module.h>
-#include <linux/moduleparam.h>
 
 #include <linux/firmware.h>
 #include <linux/types.h>
@@ -99,8 +98,7 @@
 #include "slic.h"
 
 static uint slic_first_init = 1;
-static char *slic_banner = "Alacritech SLIC Technology(tm) Server "
-		"and Storage Accelerator (Non-Accelerated)";
+static char *slic_banner = "Alacritech SLIC Technology(tm) Server and Storage Accelerator (Non-Accelerated)";
 
 static char *slic_proc_version = "2.0.351  2006/07/14 12:26:00";
 
@@ -166,7 +164,7 @@ static void slic_mcast_set_bit(struct adapter *adapter, char *address)
 	/* Get the CRC polynomial for the mac address */
 	/* we use bits 1-8 (lsb), bitwise reversed,
 	 * msb (= lsb bit 0 before bitrev) is automatically discarded */
-	crcpoly = (ether_crc(ETH_ALEN, address)>>23);
+	crcpoly = ether_crc(ETH_ALEN, address)>>23;
 
 	/* We only have space on the SLIC for 64 entries.  Lop
 	 * off the top two bits. (2^6 = 64)
@@ -1852,7 +1850,7 @@ static void slic_xmit_build_request(struct adapter *adapter,
 
 	ihcmd = &hcmd->cmd64;
 
-	ihcmd->flags = (adapter->port << IHFLG_IFSHFT);
+	ihcmd->flags = adapter->port << IHFLG_IFSHFT;
 	ihcmd->command = IHCMD_XMT_REQ;
 	ihcmd->u.slic_buffers.totlen = skb->len;
 	phys_addr = pci_map_single(adapter->pcidev, skb->data, skb->len,
@@ -1864,8 +1862,8 @@ static void slic_xmit_build_request(struct adapter *adapter,
 	hcmd->cmdsize = (u32) ((((u64)&ihcmd->u.slic_buffers.bufs[1] -
 				     (u64) hcmd) + 31) >> 5);
 #else
-	hcmd->cmdsize = ((((u32) &ihcmd->u.slic_buffers.bufs[1] -
-			   (u32) hcmd) + 31) >> 5);
+	hcmd->cmdsize = (((u32)&ihcmd->u.slic_buffers.bufs[1] -
+				       (u32)hcmd) + 31) >> 5;
 #endif
 }
 
@@ -2315,9 +2313,8 @@ static int slic_if_init(struct adapter *adapter)
 	}
 	rc = slic_adapter_allocresources(adapter);
 	if (rc) {
-		dev_err(&dev->dev,
-			"%s: slic_adapter_allocresources FAILED %x\n",
-			__func__, rc);
+		dev_err(&dev->dev, "slic_adapter_allocresources FAILED %x\n",
+			rc);
 		slic_adapter_freeresources(adapter);
 		goto err;
 	}
@@ -2362,22 +2359,19 @@ static int slic_if_init(struct adapter *adapter)
 
 	adapter->state = ADAPT_UP;
 	if (!card->loadtimerset) {
-		init_timer(&card->loadtimer);
+		setup_timer(&card->loadtimer, &slic_timer_load_check,
+			    (ulong)card);
 		card->loadtimer.expires =
 		    jiffies + (SLIC_LOADTIMER_PERIOD * HZ);
-		card->loadtimer.data = (ulong) card;
-		card->loadtimer.function = &slic_timer_load_check;
 		add_timer(&card->loadtimer);
 
 		card->loadtimerset = 1;
 	}
 
 	if (!adapter->pingtimerset) {
-		init_timer(&adapter->pingtimer);
+		setup_timer(&adapter->pingtimer, &slic_timer_ping, (ulong)dev);
 		adapter->pingtimer.expires =
 		    jiffies + (PING_TIMER_INTERVAL * HZ);
-		adapter->pingtimer.data = (ulong) dev;
-		adapter->pingtimer.function = &slic_timer_ping;
 		add_timer(&adapter->pingtimer);
 		adapter->pingtimerset = 1;
 		adapter->card->pingstatus = ISR_PINGMASK;
@@ -2554,46 +2548,11 @@ static int slic_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
 		if (copy_from_user(data, rq->ifr_data, 28))
 			return -EFAULT;
 		intagg = data[0];
-		dev_err(&dev->dev, "%s: set interrupt aggregation to %d\n",
-			__func__, intagg);
+		dev_err(&dev->dev, "set interrupt aggregation to %d\n",
+			intagg);
 		slic_intagg_set(adapter, intagg);
 		return 0;
 
-#ifdef SLIC_TRACE_DUMP_ENABLED
-	case SIOCSLICTRACEDUMP:
-		{
-			u32 value;
-
-			DBG_IOCTL("slic_ioctl  SIOCSLIC_TRACE_DUMP\n");
-
-			if (copy_from_user(data, rq->ifr_data, 28)) {
-				PRINT_ERROR
-				    ("slic: copy_from_user FAILED getting initial simba param\n");
-				return -EFAULT;
-			}
-
-			value = data[0];
-			if (tracemon_request == SLIC_DUMP_DONE) {
-				PRINT_ERROR
-				    ("ATK Diagnostic Trace Dump Requested\n");
-				tracemon_request = SLIC_DUMP_REQUESTED;
-				tracemon_request_type = value;
-				tracemon_timestamp = jiffies;
-			} else if ((tracemon_request == SLIC_DUMP_REQUESTED) ||
-				   (tracemon_request ==
-				    SLIC_DUMP_IN_PROGRESS)) {
-				PRINT_ERROR
-				    ("ATK Diagnostic Trace Dump Requested but already in progress... ignore\n");
-			} else {
-				PRINT_ERROR
-				    ("ATK Diagnostic Trace Dump Requested\n");
-				tracemon_request = SLIC_DUMP_REQUESTED;
-				tracemon_request_type = value;
-				tracemon_timestamp = jiffies;
-			}
-			return 0;
-		}
-#endif
 	case SIOCETHTOOL:
 		if (copy_from_user(&ecmd, rq->ifr_data, sizeof(ecmd)))
 			return -EFAULT;
diff --git a/drivers/staging/sm750fb/Kconfig b/drivers/staging/sm750fb/Kconfig
new file mode 100644
index 0000000..c40d088
--- /dev/null
+++ b/drivers/staging/sm750fb/Kconfig
@@ -0,0 +1,10 @@
+config FB_SM750
+	tristate "Silicon Motion SM750 framebuffer support"
+	depends on FB && PCI
+	help
+	  Frame buffer driver for the Silicon Motion SM750 chip
+	  with 2D accelearion and dual head support.
+
+	  This driver is also available as a module. The module will be
+	  called sm750fb. If you want to compile it as a module, say M
+	  here and read <file:Documentation/kbuild/modules.txt>.
diff --git a/drivers/staging/sm750fb/Makefile b/drivers/staging/sm750fb/Makefile
new file mode 100644
index 0000000..dcce3f4
--- /dev/null
+++ b/drivers/staging/sm750fb/Makefile
@@ -0,0 +1,4 @@
+obj-$(CONFIG_FB_SM750)	+= sm750fb.o
+
+sm750fb-objs		:= sm750.o sm750_hw.o sm750_accel.o sm750_cursor.o ddk750_chip.o ddk750_power.o ddk750_mode.o
+sm750fb-objs		+= ddk750_display.o ddk750_help.o ddk750_swi2c.o ddk750_sii164.o ddk750_dvi.o ddk750_hwi2c.o
diff --git a/drivers/staging/sm750fb/TODO b/drivers/staging/sm750fb/TODO
new file mode 100644
index 0000000..bc16172
--- /dev/null
+++ b/drivers/staging/sm750fb/TODO
@@ -0,0 +1,15 @@
+TODO:
+- lots of clechpatch cleanup
+- use kernel coding style
+- refine the code and remove unused code
+- check on hardware effects of removal of USE_HW_I2C and USE_DVICHIP (these two
+	are supposed to be sample code which is given here if someone wants to
+	use those functionalities)
+- move it to drivers/video/fbdev
+- modify the code for drm framework
+
+Please send any patches to
+	Greg Kroah-Hartman <greg@kroah.com>
+	Sudip Mukherjee <sudipm.mukherjee@gmail.com>
+	Teddy Wang <teddy.wang@siliconmotion.com>
+	Sudip Mukherjee <sudip@vectorindia.org>
diff --git a/drivers/staging/sm750fb/ddk750.h b/drivers/staging/sm750fb/ddk750.h
new file mode 100644
index 0000000..2c10a08
--- /dev/null
+++ b/drivers/staging/sm750fb/ddk750.h
@@ -0,0 +1,24 @@
+#ifndef DDK750_H__
+#define DDK750_H__
+/*******************************************************************
+*
+*         Copyright (c) 2007 by Silicon Motion, Inc. (SMI)
+*
+*  All rights are reserved. Reproduction or in part is prohibited
+*  without the written consent of the copyright owner.
+*
+*  RegSC.h --- SM718 SDK
+*  This file contains the definitions for the System Configuration registers.
+*
+*******************************************************************/
+#include "ddk750_reg.h"
+#include "ddk750_mode.h"
+#include "ddk750_chip.h"
+#include "ddk750_display.h"
+#include "ddk750_power.h"
+#include "ddk750_help.h"
+#ifdef USE_HW_I2C
+#include "ddk750_hwi2c.h"
+#endif
+#include "ddk750_swi2c.h"
+#endif
diff --git a/drivers/staging/sm750fb/ddk750_chip.c b/drivers/staging/sm750fb/ddk750_chip.c
new file mode 100644
index 0000000..7b28328
--- /dev/null
+++ b/drivers/staging/sm750fb/ddk750_chip.c
@@ -0,0 +1,622 @@
+#include "ddk750_help.h"
+#include "ddk750_reg.h"
+#include "ddk750_chip.h"
+#include "ddk750_power.h"
+typedef struct _pllcalparam {
+	unsigned char power;/* d : 0~ 6*/
+	unsigned char pod;
+	unsigned char od;
+	unsigned char value;/* value of  2 power d (2^d) */
+}
+pllcalparam;
+
+
+logical_chip_type_t getChipType(void)
+{
+	unsigned short physicalID;
+	char physicalRev;
+	logical_chip_type_t chip;
+
+	physicalID = devId750;//either 0x718 or 0x750
+	physicalRev = revId750;
+
+	if (physicalID == 0x718)
+		chip = SM718;
+	else if (physicalID == 0x750) {
+		chip = SM750;
+		/* SM750 and SM750LE are different in their revision ID only. */
+		if (physicalRev == SM750LE_REVISION_ID)
+			chip = SM750LE;
+	} else
+		chip = SM_UNKNOWN;
+
+	return chip;
+}
+
+
+inline unsigned int twoToPowerOfx(unsigned long x)
+{
+	unsigned long i;
+	unsigned long result = 1;
+
+	for (i = 1; i <= x; i++)
+		result *= 2;
+	return result;
+}
+
+inline unsigned int calcPLL(pll_value_t *pPLL)
+{
+	return (pPLL->inputFreq * pPLL->M / pPLL->N / twoToPowerOfx(pPLL->OD) / twoToPowerOfx(pPLL->POD));
+}
+
+unsigned int getPllValue(clock_type_t clockType, pll_value_t *pPLL)
+{
+	unsigned int ulPllReg = 0;
+
+	pPLL->inputFreq = DEFAULT_INPUT_CLOCK;
+	pPLL->clockType = clockType;
+
+	switch (clockType) {
+	case MXCLK_PLL:
+		ulPllReg = PEEK32(MXCLK_PLL_CTRL);
+		break;
+	case PRIMARY_PLL:
+		ulPllReg = PEEK32(PANEL_PLL_CTRL);
+		break;
+	case SECONDARY_PLL:
+		ulPllReg = PEEK32(CRT_PLL_CTRL);
+		break;
+	case VGA0_PLL:
+		ulPllReg = PEEK32(VGA_PLL0_CTRL);
+		break;
+	case VGA1_PLL:
+		ulPllReg = PEEK32(VGA_PLL1_CTRL);
+		break;
+	}
+
+	pPLL->M = FIELD_GET(ulPllReg, PANEL_PLL_CTRL, M);
+	pPLL->N = FIELD_GET(ulPllReg, PANEL_PLL_CTRL, N);
+	pPLL->OD = FIELD_GET(ulPllReg, PANEL_PLL_CTRL, OD);
+	pPLL->POD = FIELD_GET(ulPllReg, PANEL_PLL_CTRL, POD);
+
+	return calcPLL(pPLL);
+}
+
+
+unsigned int getChipClock(void)
+{
+	pll_value_t pll;
+#if 1
+	if (getChipType() == SM750LE)
+		return MHz(130);
+#endif
+
+	return getPllValue(MXCLK_PLL, &pll);
+}
+
+
+/*
+ * This function set up the main chip clock.
+ *
+ * Input: Frequency to be set.
+ */
+void setChipClock(unsigned int frequency)
+{
+	pll_value_t pll;
+	unsigned int ulActualMxClk;
+#if 1
+	/* Cheok_0509: For SM750LE, the chip clock is fixed. Nothing to set. */
+	if (getChipType() == SM750LE)
+		return;
+#endif
+
+	if (frequency) {
+		/*
+		* Set up PLL, a structure to hold the value to be set in clocks.
+		*/
+		pll.inputFreq = DEFAULT_INPUT_CLOCK; /* Defined in CLOCK.H */
+		pll.clockType = MXCLK_PLL;
+
+		/*
+		* Call calcPllValue() to fill up the other fields for PLL structure.
+		* Sometime, the chip cannot set up the exact clock required by User.
+		* Return value from calcPllValue() gives the actual possible clock.
+		*/
+		ulActualMxClk = calcPllValue(frequency, &pll);
+
+		/* Master Clock Control: MXCLK_PLL */
+		POKE32(MXCLK_PLL_CTRL, formatPllReg(&pll));
+	}
+}
+
+
+
+void setMemoryClock(unsigned int frequency)
+{
+	unsigned int ulReg, divisor;
+ #if 1
+	/* Cheok_0509: For SM750LE, the memory clock is fixed. Nothing to set. */
+	if (getChipType() == SM750LE)
+		return;
+#endif
+	if (frequency) {
+		/* Set the frequency to the maximum frequency that the DDR Memory can take
+		which is 336MHz. */
+		if (frequency > MHz(336))
+			frequency = MHz(336);
+
+		/* Calculate the divisor */
+		divisor = (unsigned int) roundedDiv(getChipClock(), frequency);
+
+		/* Set the corresponding divisor in the register. */
+		ulReg = PEEK32(CURRENT_GATE);
+		switch (divisor) {
+		default:
+		case 1:
+			ulReg = FIELD_SET(ulReg, CURRENT_GATE, M2XCLK, DIV_1);
+			break;
+		case 2:
+			ulReg = FIELD_SET(ulReg, CURRENT_GATE, M2XCLK, DIV_2);
+			break;
+		case 3:
+			ulReg = FIELD_SET(ulReg, CURRENT_GATE, M2XCLK, DIV_3);
+			break;
+		case 4:
+			ulReg = FIELD_SET(ulReg, CURRENT_GATE, M2XCLK, DIV_4);
+			break;
+		}
+
+		setCurrentGate(ulReg);
+	}
+}
+
+
+/*
+ * This function set up the master clock (MCLK).
+ *
+ * Input: Frequency to be set.
+ *
+ * NOTE:
+ *      The maximum frequency the engine can run is 168MHz.
+ */
+void setMasterClock(unsigned int frequency)
+{
+	unsigned int ulReg, divisor;
+#if 1
+	/* Cheok_0509: For SM750LE, the memory clock is fixed. Nothing to set. */
+	if (getChipType() == SM750LE)
+		return;
+#endif
+	if (frequency) {
+		/* Set the frequency to the maximum frequency that the SM750 engine can
+		run, which is about 190 MHz. */
+		if (frequency > MHz(190))
+			frequency = MHz(190);
+
+		/* Calculate the divisor */
+		divisor = (unsigned int) roundedDiv(getChipClock(), frequency);
+
+		/* Set the corresponding divisor in the register. */
+		ulReg = PEEK32(CURRENT_GATE);
+		switch (divisor) {
+		default:
+		case 3:
+			ulReg = FIELD_SET(ulReg, CURRENT_GATE, MCLK, DIV_3);
+			break;
+		case 4:
+			ulReg = FIELD_SET(ulReg, CURRENT_GATE, MCLK, DIV_4);
+			break;
+		case 6:
+			ulReg = FIELD_SET(ulReg, CURRENT_GATE, MCLK, DIV_6);
+			break;
+		case 8:
+			ulReg = FIELD_SET(ulReg, CURRENT_GATE, MCLK, DIV_8);
+			break;
+		}
+
+		setCurrentGate(ulReg);
+		}
+}
+
+
+unsigned int ddk750_getVMSize(void)
+{
+	unsigned int reg;
+	unsigned int data;
+
+	/* sm750le only use 64 mb memory*/
+	if (getChipType() == SM750LE)
+		return MB(64);
+
+	/* for 750,always use power mode0*/
+	reg = PEEK32(MODE0_GATE);
+	reg = FIELD_SET(reg, MODE0_GATE, GPIO, ON);
+	POKE32(MODE0_GATE, reg);
+
+	/* get frame buffer size from GPIO */
+	reg = FIELD_GET(PEEK32(MISC_CTRL), MISC_CTRL, LOCALMEM_SIZE);
+	switch (reg) {
+	case MISC_CTRL_LOCALMEM_SIZE_8M:
+		data = MB(8);  break; /* 8  Mega byte */
+	case MISC_CTRL_LOCALMEM_SIZE_16M:
+		data = MB(16); break; /* 16 Mega byte */
+	case MISC_CTRL_LOCALMEM_SIZE_32M:
+		data = MB(32); break; /* 32 Mega byte */
+	case MISC_CTRL_LOCALMEM_SIZE_64M:
+		data = MB(64); break; /* 64 Mega byte */
+	default:
+		data = 0;
+		break;
+	}
+	return data;
+
+}
+
+int ddk750_initHw(initchip_param_t *pInitParam)
+{
+
+	unsigned int ulReg;
+#if 0
+	//move the code to map regiter function.
+	if (getChipType() == SM718) {
+		/* turn on big endian bit*/
+		ulReg = PEEK32(0x74);
+		/* now consider register definition in a big endian pattern*/
+		POKE32(0x74, ulReg|0x80000000);
+	}
+
+#endif
+
+
+	if (pInitParam->powerMode != 0 )
+		pInitParam->powerMode = 0;
+	setPowerMode(pInitParam->powerMode);
+
+	/* Enable display power gate & LOCALMEM power gate*/
+	ulReg = PEEK32(CURRENT_GATE);
+	ulReg = FIELD_SET(ulReg, CURRENT_GATE, DISPLAY, ON);
+	ulReg = FIELD_SET(ulReg, CURRENT_GATE, LOCALMEM, ON);
+	setCurrentGate(ulReg);
+
+	if (getChipType() != SM750LE) {
+		/*	set panel pll and graphic mode via mmio_88 */
+		ulReg = PEEK32(VGA_CONFIGURATION);
+		ulReg = FIELD_SET(ulReg, VGA_CONFIGURATION, PLL, PANEL);
+		ulReg = FIELD_SET(ulReg, VGA_CONFIGURATION, MODE, GRAPHIC);
+		POKE32(VGA_CONFIGURATION, ulReg);
+	} else {
+#if defined(__i386__) || defined( __x86_64__)
+		/* set graphic mode via IO method */
+		outb_p(0x88, 0x3d4);
+		outb_p(0x06, 0x3d5);
+#endif
+	}
+
+	/* Set the Main Chip Clock */
+	setChipClock(MHz((unsigned int)pInitParam->chipClock));
+
+	/* Set up memory clock. */
+	setMemoryClock(MHz(pInitParam->memClock));
+
+	/* Set up master clock */
+	setMasterClock(MHz(pInitParam->masterClock));
+
+
+	/* Reset the memory controller. If the memory controller is not reset in SM750,
+	   the system might hang when sw accesses the memory.
+	   The memory should be resetted after changing the MXCLK.
+	 */
+	if (pInitParam->resetMemory == 1) {
+		ulReg = PEEK32(MISC_CTRL);
+		ulReg = FIELD_SET(ulReg, MISC_CTRL, LOCALMEM_RESET, RESET);
+		POKE32(MISC_CTRL, ulReg);
+
+		ulReg = FIELD_SET(ulReg, MISC_CTRL, LOCALMEM_RESET, NORMAL);
+		POKE32(MISC_CTRL, ulReg);
+	}
+
+	if (pInitParam->setAllEngOff == 1) {
+		enable2DEngine(0);
+
+		/* Disable Overlay, if a former application left it on */
+		ulReg = PEEK32(VIDEO_DISPLAY_CTRL);
+		ulReg = FIELD_SET(ulReg, VIDEO_DISPLAY_CTRL, PLANE, DISABLE);
+		POKE32(VIDEO_DISPLAY_CTRL, ulReg);
+
+		/* Disable video alpha, if a former application left it on */
+		ulReg = PEEK32(VIDEO_ALPHA_DISPLAY_CTRL);
+		ulReg = FIELD_SET(ulReg, VIDEO_ALPHA_DISPLAY_CTRL, PLANE, DISABLE);
+		POKE32(VIDEO_ALPHA_DISPLAY_CTRL, ulReg);
+
+		/* Disable alpha plane, if a former application left it on */
+		ulReg = PEEK32(ALPHA_DISPLAY_CTRL);
+		ulReg = FIELD_SET(ulReg, ALPHA_DISPLAY_CTRL, PLANE, DISABLE);
+		POKE32(ALPHA_DISPLAY_CTRL, ulReg);
+
+#if 0
+		/* Disable LCD hardware cursor, if a former application left it on */
+		ulReg = PEEK32(PANEL_HWC_ADDRESS);
+		ulReg = FIELD_SET(ulReg, PANEL_HWC_ADDRESS, ENABLE, DISABLE);
+		POKE32(PANEL_HWC_ADDRESS, ulReg);
+
+		/* Disable CRT hardware cursor, if a former application left it on */
+		ulReg = PEEK32(CRT_HWC_ADDRESS);
+		ulReg = FIELD_SET(ulReg, CRT_HWC_ADDRESS, ENABLE, DISABLE);
+		POKE32(CRT_HWC_ADDRESS, ulReg);
+
+		/* Disable ZV Port 0, if a former application left it on */
+		ulReg = PEEK32(ZV0_CAPTURE_CTRL);
+		ulReg = FIELD_SET(ulReg, ZV0_CAPTURE_CTRL, CAP, DISABLE);
+		POKE32(ZV0_CAPTURE_CTRL, ulReg);
+
+		/* Disable ZV Port 1, if a former application left it on */
+		ulReg = PEEK32(ZV1_CAPTURE_CTRL);
+		ulReg = FIELD_SET(ulReg, ZV1_CAPTURE_CTRL, CAP, DISABLE);
+		POKE32(ZV1_CAPTURE_CTRL, ulReg);
+
+		/* Disable ZV Port Power, if a former application left it on */
+		enableZVPort(0);
+		/* Disable DMA Channel, if a former application left it on */
+		ulReg = PEEK32(DMA_ABORT_INTERRUPT);
+		ulReg = FIELD_SET(ulReg, DMA_ABORT_INTERRUPT, ABORT_1, ABORT);
+		POKE32(DMA_ABORT_INTERRUPT, ulReg);
+
+		/* Disable i2c */
+		enableI2C(0);
+#endif
+		/* Disable DMA Channel, if a former application left it on */
+		ulReg = PEEK32(DMA_ABORT_INTERRUPT);
+		ulReg = FIELD_SET(ulReg, DMA_ABORT_INTERRUPT, ABORT_1, ABORT);
+		POKE32(DMA_ABORT_INTERRUPT, ulReg);
+
+		/* Disable DMA Power, if a former application left it on */
+		enableDMA(0);
+	}
+
+	/* We can add more initialization as needed. */
+
+	return 0;
+}
+
+#if 0
+
+unsigned int absDiff(unsigned int a, unsigned int b)
+{
+	if ( a > b )
+		return(a - b);
+	else
+		return(b - a);
+}
+
+#endif
+/*
+	monk liu @ 4/6/2011:
+		   re-write the calculatePLL function of ddk750.
+		   the original version function does not use some mathematics tricks and shortcut
+		   when it doing the calculation of the best N,M,D combination
+		   I think this version gives a little upgrade in speed
+
+	750 pll clock formular:
+	Request Clock = (Input Clock * M )/(N * X)
+
+	Input Clock = 14318181 hz
+	X = 2 power D
+	D ={0,1,2,3,4,5,6}
+	M = {1,...,255}
+	N = {2,...,15}
+*/
+unsigned int calcPllValue(unsigned int request_orig, pll_value_t *pll)
+{
+	/* used for primary and secondary channel pixel clock pll */
+	static pllcalparam xparm_PIXEL[] = {
+		/* 2^0 = 1*/			{0, 0, 0, 1},
+		/* 2^ 1 =2*/			{1, 0, 1, 2},
+		/* 2^ 2  = 4*/		{2, 0, 2, 4},
+							{3, 0, 3, 8},
+							{4, 1, 3, 16},
+							{5, 2, 3, 32},
+		/* 2^6 = 64  */		{6, 3, 3, 64},
+							};
+
+	/* used for MXCLK (chip clock) */
+	static pllcalparam xparm_MXCLK[] = {
+		/* 2^0 = 1*/			{0, 0, 0, 1},
+		/* 2^ 1 =2*/			{1, 0, 1, 2},
+		/* 2^ 2  = 4*/		{2, 0, 2, 4},
+							{3, 0, 3, 8},
+							};
+
+	/* as sm750 register definition, N located in 2,15 and M located in 1,255	*/
+	int N, M, X, d;
+	int xcnt;
+	int miniDiff;
+	unsigned int RN, quo, rem, fl_quo;
+	unsigned int input, request;
+	unsigned int tmpClock, ret;
+	pllcalparam * xparm;
+
+#if 1
+	if (getChipType() == SM750LE) {
+		/* SM750LE don't have prgrammable PLL and M/N values to work on.
+		Just return the requested clock. */
+		return request_orig;
+	}
+#endif
+
+	ret = 0;
+	miniDiff = ~0;
+	request = request_orig / 1000;
+	input = pll->inputFreq / 1000;
+
+	/* for MXCLK register , no POD provided, so need be treated differently	*/
+
+	if (pll->clockType != MXCLK_PLL) {
+		xparm = &xparm_PIXEL[0];
+		xcnt = sizeof(xparm_PIXEL)/sizeof(xparm_PIXEL[0]);
+	} else {
+		xparm = &xparm_MXCLK[0];
+		xcnt = sizeof(xparm_MXCLK)/sizeof(xparm_MXCLK[0]);
+	}
+
+
+	for (N = 15; N > 1; N--) {
+		/* RN will not exceed maximum long if @request <= 285 MHZ (for 32bit cpu) */
+		RN = N * request;
+		quo = RN / input;
+		rem = RN % input;/* rem always small than 14318181 */
+		fl_quo = (rem * 10000 /input);
+
+		for (d = xcnt - 1; d >= 0; d--) {
+			X = xparm[d].value;
+			M = quo*X;
+			M += fl_quo * X / 10000;
+			/* round step */
+			M += (fl_quo*X % 10000)>5000?1:0;
+			if (M < 256 && M > 0) {
+				unsigned int diff;
+				tmpClock = pll->inputFreq *M / N / X;
+				diff = absDiff(tmpClock, request_orig);
+				if (diff < miniDiff) {
+					pll->M = M;
+					pll->N = N;
+					pll->OD = xparm[d].od;
+					pll->POD = xparm[d].pod;
+					miniDiff = diff;
+					ret = tmpClock;
+				}
+			}
+		}
+	}
+
+	//printk("Finally:  pll->n[%lu],m[%lu],od[%lu],pod[%lu]\n",pll->N,pll->M,pll->OD,pll->POD);
+	return ret;
+}
+
+unsigned int calcPllValue2(
+unsigned int ulRequestClk, /* Required pixel clock in Hz unit */
+pll_value_t *pPLL           /* Structure to hold the value to be set in PLL */
+)
+{
+	unsigned int M, N, OD, POD = 0, diff, pllClk, odPower, podPower;
+	unsigned int bestDiff = 0xffffffff; /* biggest 32 bit unsigned number */
+	unsigned int ret;
+    /* Init PLL structure to know states */
+	pPLL->M = 0;
+	pPLL->N = 0;
+	pPLL->OD = 0;
+	pPLL->POD = 0;
+
+    /* Sanity check: None at the moment */
+
+    /* Convert everything in Khz range in order to avoid calculation overflow */
+	pPLL->inputFreq /= 1000;
+	ulRequestClk /= 1000;
+
+#ifndef VALIDATION_CHIP
+    /* The maximum of post divider is 8. */
+	for (POD = 0; POD <= 3; POD++)
+#endif
+		{
+
+#ifndef VALIDATION_CHIP
+	/* MXCLK_PLL does not have post divider. */
+	if ((POD > 0) && (pPLL->clockType == MXCLK_PLL))
+		break;
+#endif
+
+	/* Work out 2 to the power of POD */
+	podPower = twoToPowerOfx(POD);
+
+	/* OD has only 2 bits [15:14] and its value must between 0 to 3 */
+	for (OD = 0; OD <= 3; OD++) {
+		/* Work out 2 to the power of OD */
+		odPower = twoToPowerOfx(OD);
+
+#ifdef VALIDATION_CHIP
+	if (odPower > 4)
+		podPower = 4;
+	else
+		podPower = odPower;
+#endif
+
+		/* N has 4 bits [11:8] and its value must between 2 and 15.
+		The N == 1 will behave differently --> Result is not correct. */
+	for (N = 2; N <= 15; N++) {
+		/* The formula for PLL is ulRequestClk = inputFreq * M / N / (2^OD)
+		In the following steps, we try to work out a best M value given the others are known.
+		To avoid decimal calculation, we use 1000 as multiplier for up to 3 decimal places of accuracy.
+		*/
+		M = ulRequestClk * N * odPower * 1000 / pPLL->inputFreq;
+		M = roundedDiv(M, 1000);
+
+		/* M field has only 8 bits, reject value bigger than 8 bits */
+		if (M < 256) {
+			/* Calculate the actual clock for a given M & N */
+			pllClk = pPLL->inputFreq * M / N / odPower / podPower;
+
+			/* How much are we different from the requirement */
+			diff = absDiff(pllClk, ulRequestClk);
+
+			if (diff < bestDiff) {
+				bestDiff = diff;
+
+				/* Store M and N values */
+				pPLL->M  = M;
+				pPLL->N  = N;
+				pPLL->OD = OD;
+
+#ifdef VALIDATION_CHIP
+			if (OD > 2)
+				POD = 2;
+			else
+				POD = OD;
+#endif
+
+			pPLL->POD = POD;
+			}
+		}
+	}
+	}
+	}
+
+    /* Restore input frequency from Khz to hz unit */
+//    pPLL->inputFreq *= 1000;
+	ulRequestClk *= 1000;
+	pPLL->inputFreq = DEFAULT_INPUT_CLOCK; /* Default reference clock */
+
+    /* Output debug information */
+	//DDKDEBUGPRINT((DISPLAY_LEVEL, "calcPllValue: Requested Frequency = %d\n", ulRequestClk));
+	//DDKDEBUGPRINT((DISPLAY_LEVEL, "calcPllValue: Input CLK = %dHz, M=%d, N=%d, OD=%d, POD=%d\n", pPLL->inputFreq, pPLL->M, pPLL->N, pPLL->OD, pPLL->POD));
+
+    /* Return actual frequency that the PLL can set */
+	ret = calcPLL(pPLL);
+	return ret;
+}
+
+
+
+
+
+unsigned int formatPllReg(pll_value_t *pPLL)
+{
+	unsigned int ulPllReg = 0;
+
+    /* Note that all PLL's have the same format. Here, we just use Panel PLL parameter
+       to work out the bit fields in the register.
+       On returning a 32 bit number, the value can be applied to any PLL in the calling function.
+    */
+	ulPllReg =
+	FIELD_SET(  0, PANEL_PLL_CTRL, BYPASS, OFF)
+	| FIELD_SET(  0, PANEL_PLL_CTRL, POWER,  ON)
+	| FIELD_SET(  0, PANEL_PLL_CTRL, INPUT,  OSC)
+#ifndef VALIDATION_CHIP
+	| FIELD_VALUE(0, PANEL_PLL_CTRL, POD,    pPLL->POD)
+#endif
+	| FIELD_VALUE(0, PANEL_PLL_CTRL, OD,     pPLL->OD)
+	| FIELD_VALUE(0, PANEL_PLL_CTRL, N,      pPLL->N)
+	| FIELD_VALUE(0, PANEL_PLL_CTRL, M,      pPLL->M);
+
+    return ulPllReg;
+}
+
+
diff --git a/drivers/staging/sm750fb/ddk750_chip.h b/drivers/staging/sm750fb/ddk750_chip.h
new file mode 100644
index 0000000..04cb0d5
--- /dev/null
+++ b/drivers/staging/sm750fb/ddk750_chip.h
@@ -0,0 +1,87 @@
+#ifndef DDK750_CHIP_H__
+#define DDK750_CHIP_H__
+#define DEFAULT_INPUT_CLOCK 14318181 /* Default reference clock */
+#ifndef SM750LE_REVISION_ID
+#define SM750LE_REVISION_ID ((unsigned char)0xfe)
+#endif
+
+#include <linux/io.h>
+
+/* This is all the chips recognized by this library */
+typedef enum _logical_chip_type_t
+{
+    SM_UNKNOWN,
+    SM718,
+    SM750,
+    SM750LE,
+}
+logical_chip_type_t;
+
+
+typedef enum _clock_type_t
+{
+	MXCLK_PLL,
+	PRIMARY_PLL,
+	SECONDARY_PLL,
+	VGA0_PLL,
+	VGA1_PLL,
+}
+clock_type_t;
+
+typedef struct _pll_value_t
+{
+    clock_type_t clockType;
+    unsigned long inputFreq; /* Input clock frequency to the PLL */
+
+    /* Use this when clockType = PANEL_PLL */
+    unsigned long M;
+    unsigned long N;
+    unsigned long OD;
+    unsigned long POD;
+}
+pll_value_t;
+
+/* input struct to initChipParam() function */
+typedef struct _initchip_param_t
+{
+    unsigned short powerMode;    /* Use power mode 0 or 1 */
+    unsigned short chipClock;    /* Speed of main chip clock in MHz unit
+                                    0 = keep the current clock setting
+                                    Others = the new main chip clock
+                                  */
+    unsigned short memClock;     /* Speed of memory clock in MHz unit
+                                    0 = keep the current clock setting
+                                    Others = the new memory clock
+                                  */
+    unsigned short masterClock;  /* Speed of master clock in MHz unit
+                                    0 = keep the current clock setting
+                                    Others = the new master clock
+                                  */
+    unsigned short setAllEngOff; /* 0 = leave all engine state untouched.
+                                    1 = make sure they are off: 2D, Overlay,
+                                    video alpha, alpha, hardware cursors
+                                 */
+    unsigned char resetMemory;   /* 0 = Do not reset the memory controller
+                                    1 = Reset the memory controller
+                                  */
+
+    /* More initialization parameter can be added if needed */
+}
+initchip_param_t;
+
+
+logical_chip_type_t getChipType(void);
+unsigned int calcPllValue(unsigned int request,pll_value_t *pll);
+unsigned int calcPllValue2(unsigned int,pll_value_t *);
+unsigned int formatPllReg(pll_value_t *pPLL);
+void ddk750_set_mmio(void __iomem *,unsigned short,char);
+unsigned int ddk750_getVMSize(void);
+int ddk750_initHw(initchip_param_t *);
+unsigned int getPllValue(clock_type_t clockType, pll_value_t *pPLL);
+unsigned int getChipClock(void);
+void setChipClock(unsigned int);
+void setMemoryClock(unsigned int frequency);
+void setMasterClock(unsigned int frequency);
+
+
+#endif
diff --git a/drivers/staging/sm750fb/ddk750_display.c b/drivers/staging/sm750fb/ddk750_display.c
new file mode 100644
index 0000000..c84196a
--- /dev/null
+++ b/drivers/staging/sm750fb/ddk750_display.c
@@ -0,0 +1,307 @@
+#include "ddk750_reg.h"
+#include "ddk750_help.h"
+#include "ddk750_display.h"
+#include "ddk750_power.h"
+#include "ddk750_dvi.h"
+
+#define primaryWaitVerticalSync(delay) waitNextVerticalSync(0,delay)
+
+static void setDisplayControl(int ctrl,int dispState)
+{
+	/* state != 0 means turn on both timing & plane en_bit */
+	unsigned long ulDisplayCtrlReg, ulReservedBits;
+	int cnt;
+
+	cnt = 0;
+
+	/* Set the primary display control */
+	if (!ctrl)
+	{
+		ulDisplayCtrlReg = PEEK32(PANEL_DISPLAY_CTRL);
+		/* Turn on/off the Panel display control */
+		if (dispState)
+		{
+			/* Timing should be enabled first before enabling the plane
+			 * because changing at the same time does not guarantee that
+			 * the plane will also enabled or disabled.
+     	     */
+			ulDisplayCtrlReg = FIELD_SET(ulDisplayCtrlReg,
+								PANEL_DISPLAY_CTRL, TIMING, ENABLE);
+			POKE32(PANEL_DISPLAY_CTRL, ulDisplayCtrlReg);
+
+			ulDisplayCtrlReg = FIELD_SET(ulDisplayCtrlReg,
+								PANEL_DISPLAY_CTRL, PLANE, ENABLE);
+
+			/* Added some masks to mask out the reserved bits.
+			 * Sometimes, the reserved bits are set/reset randomly when
+			 * writing to the PRIMARY_DISPLAY_CTRL, therefore, the register
+			 * reserved bits are needed to be masked out.
+			 */
+			ulReservedBits = FIELD_SET(0, PANEL_DISPLAY_CTRL, RESERVED_1_MASK, ENABLE) |
+				FIELD_SET(0, PANEL_DISPLAY_CTRL, RESERVED_2_MASK, ENABLE) |
+				FIELD_SET(0, PANEL_DISPLAY_CTRL, RESERVED_3_MASK, ENABLE);
+
+			/* Somehow the register value on the plane is not set
+			 * until a few delay. Need to write
+			 * and read it a couple times
+			 */
+			do
+			{
+				cnt++;
+				POKE32(PANEL_DISPLAY_CTRL, ulDisplayCtrlReg);
+			} while((PEEK32(PANEL_DISPLAY_CTRL) & ~ulReservedBits) !=
+					(ulDisplayCtrlReg & ~ulReservedBits));
+			printk("Set Panel Plane enbit:after tried %d times\n",cnt);
+		}
+		else
+		{
+			/* When turning off, there is no rule on the programming
+			 * sequence since whenever the clock is off, then it does not
+			 * matter whether the plane is enabled or disabled.
+			 * Note: Modifying the plane bit will take effect on the
+			 * next vertical sync. Need to find out if it is necessary to
+			 * wait for 1 vsync before modifying the timing enable bit.
+			 * */
+			ulDisplayCtrlReg = FIELD_SET(ulDisplayCtrlReg,
+								PANEL_DISPLAY_CTRL, PLANE, DISABLE);
+			POKE32(PANEL_DISPLAY_CTRL, ulDisplayCtrlReg);
+
+			ulDisplayCtrlReg = FIELD_SET(ulDisplayCtrlReg,
+								PANEL_DISPLAY_CTRL, TIMING, DISABLE);
+			POKE32(PANEL_DISPLAY_CTRL, ulDisplayCtrlReg);
+		}
+
+	}
+	/* Set the secondary display control */
+	else
+	{
+		ulDisplayCtrlReg = PEEK32(CRT_DISPLAY_CTRL);
+
+		if (dispState)
+		{
+			/* Timing should be enabled first before enabling the plane because changing at the
+			   same time does not guarantee that the plane will also enabled or disabled.
+			   */
+			ulDisplayCtrlReg = FIELD_SET(ulDisplayCtrlReg,
+								CRT_DISPLAY_CTRL, TIMING, ENABLE);
+			POKE32(CRT_DISPLAY_CTRL, ulDisplayCtrlReg);
+
+			ulDisplayCtrlReg = FIELD_SET(ulDisplayCtrlReg,
+								CRT_DISPLAY_CTRL, PLANE, ENABLE);
+
+			/* Added some masks to mask out the reserved bits.
+			 * Sometimes, the reserved bits are set/reset randomly when
+			 * writing to the PRIMARY_DISPLAY_CTRL, therefore, the register
+			 * reserved bits are needed to be masked out.
+			 */
+
+			ulReservedBits = FIELD_SET(0, CRT_DISPLAY_CTRL, RESERVED_1_MASK, ENABLE) |
+				FIELD_SET(0, CRT_DISPLAY_CTRL, RESERVED_2_MASK, ENABLE) |
+				FIELD_SET(0, CRT_DISPLAY_CTRL, RESERVED_3_MASK, ENABLE) |
+				FIELD_SET(0, CRT_DISPLAY_CTRL, RESERVED_4_MASK, ENABLE);
+
+			do
+			{
+				cnt++;
+				POKE32(CRT_DISPLAY_CTRL, ulDisplayCtrlReg);
+			} while((PEEK32(CRT_DISPLAY_CTRL) & ~ulReservedBits) !=
+					(ulDisplayCtrlReg & ~ulReservedBits));
+				printk("Set Crt Plane enbit:after tried %d times\n",cnt);
+		}
+		else
+		{
+			/* When turning off, there is no rule on the programming
+			 * sequence since whenever the clock is off, then it does not
+			 * matter whether the plane is enabled or disabled.
+			 * Note: Modifying the plane bit will take effect on the next
+			 * vertical sync. Need to find out if it is necessary to
+			 * wait for 1 vsync before modifying the timing enable bit.
+			 */
+			ulDisplayCtrlReg = FIELD_SET(ulDisplayCtrlReg,
+								CRT_DISPLAY_CTRL, PLANE, DISABLE);
+			POKE32(CRT_DISPLAY_CTRL, ulDisplayCtrlReg);
+
+			ulDisplayCtrlReg = FIELD_SET(ulDisplayCtrlReg,
+								CRT_DISPLAY_CTRL, TIMING, DISABLE);
+			POKE32(CRT_DISPLAY_CTRL, ulDisplayCtrlReg);
+		}
+	}
+}
+
+
+static void waitNextVerticalSync(int ctrl,int delay)
+{
+	unsigned int status;
+	if(!ctrl){
+		/* primary controller */
+
+        /* Do not wait when the Primary PLL is off or display control is already off.
+	           This will prevent the software to wait forever. */
+		if ((FIELD_GET(PEEK32(PANEL_PLL_CTRL), PANEL_PLL_CTRL, POWER) ==
+			 PANEL_PLL_CTRL_POWER_OFF) ||
+			(FIELD_GET(PEEK32(PANEL_DISPLAY_CTRL), PANEL_DISPLAY_CTRL, TIMING) ==
+			 PANEL_DISPLAY_CTRL_TIMING_DISABLE))
+		{
+			return;
+		}
+
+        while (delay-- > 0)
+        {
+            /* Wait for end of vsync. */
+            do
+            {
+                status = FIELD_GET(PEEK32(SYSTEM_CTRL),
+                                   SYSTEM_CTRL,
+                                   PANEL_VSYNC);
+            }
+            while (status == SYSTEM_CTRL_PANEL_VSYNC_ACTIVE);
+
+            /* Wait for start of vsync. */
+            do
+            {
+                status = FIELD_GET(PEEK32(SYSTEM_CTRL),
+                                   SYSTEM_CTRL,
+                                   PANEL_VSYNC);
+            }
+            while (status == SYSTEM_CTRL_PANEL_VSYNC_INACTIVE);
+        }
+
+	}else{
+
+		/* Do not wait when the Primary PLL is off or display control is already off.
+			   This will prevent the software to wait forever. */
+		if ((FIELD_GET(PEEK32(CRT_PLL_CTRL), CRT_PLL_CTRL, POWER) ==
+			 CRT_PLL_CTRL_POWER_OFF) ||
+			(FIELD_GET(PEEK32(CRT_DISPLAY_CTRL), CRT_DISPLAY_CTRL, TIMING) ==
+			 CRT_DISPLAY_CTRL_TIMING_DISABLE))
+		{
+			return;
+		}
+
+		while (delay-- > 0)
+		{
+			/* Wait for end of vsync. */
+			do
+			{
+				status = FIELD_GET(PEEK32(SYSTEM_CTRL),
+								   SYSTEM_CTRL,
+								   CRT_VSYNC);
+			}
+			while (status == SYSTEM_CTRL_CRT_VSYNC_ACTIVE);
+
+			/* Wait for start of vsync. */
+			do
+			{
+				status = FIELD_GET(PEEK32(SYSTEM_CTRL),
+								   SYSTEM_CTRL,
+								   CRT_VSYNC);
+			}
+			while (status == SYSTEM_CTRL_CRT_VSYNC_INACTIVE);
+		}
+	}
+}
+
+static void swPanelPowerSequence(int disp,int delay)
+{
+	unsigned int reg;
+
+	/* disp should be 1 to open sequence */
+	reg = PEEK32(PANEL_DISPLAY_CTRL);
+	reg = FIELD_VALUE(reg,PANEL_DISPLAY_CTRL,FPEN,disp);
+	POKE32(PANEL_DISPLAY_CTRL,reg);
+	primaryWaitVerticalSync(delay);
+
+
+	reg = PEEK32(PANEL_DISPLAY_CTRL);
+	reg = FIELD_VALUE(reg,PANEL_DISPLAY_CTRL,DATA,disp);
+	POKE32(PANEL_DISPLAY_CTRL,reg);
+	primaryWaitVerticalSync(delay);
+
+	reg = PEEK32(PANEL_DISPLAY_CTRL);
+	reg = FIELD_VALUE(reg,PANEL_DISPLAY_CTRL,VBIASEN,disp);
+	POKE32(PANEL_DISPLAY_CTRL,reg);
+	primaryWaitVerticalSync(delay);
+
+
+	reg = PEEK32(PANEL_DISPLAY_CTRL);
+	reg = FIELD_VALUE(reg,PANEL_DISPLAY_CTRL,FPEN,disp);
+	POKE32(PANEL_DISPLAY_CTRL,reg);
+	primaryWaitVerticalSync(delay);
+
+}
+
+void ddk750_setLogicalDispOut(disp_output_t output)
+{
+	unsigned int reg;
+	if(output & PNL_2_USAGE){
+		/* set panel path controller select */
+		reg = PEEK32(PANEL_DISPLAY_CTRL);
+		reg = FIELD_VALUE(reg,PANEL_DISPLAY_CTRL,SELECT,(output & PNL_2_MASK)>>PNL_2_OFFSET);
+		POKE32(PANEL_DISPLAY_CTRL,reg);
+	}
+
+	if(output & CRT_2_USAGE){
+		/* set crt path controller select */
+		reg = PEEK32(CRT_DISPLAY_CTRL);
+		reg = FIELD_VALUE(reg,CRT_DISPLAY_CTRL,SELECT,(output & CRT_2_MASK)>>CRT_2_OFFSET);
+		/*se blank off */
+		reg = FIELD_SET(reg,CRT_DISPLAY_CTRL,BLANK,OFF);
+		POKE32(CRT_DISPLAY_CTRL,reg);
+
+	}
+
+	if(output & PRI_TP_USAGE){
+		/* set primary timing and plane en_bit */
+		setDisplayControl(0,(output&PRI_TP_MASK)>>PRI_TP_OFFSET);
+	}
+
+	if(output & SEC_TP_USAGE){
+		/* set secondary timing and plane en_bit*/
+		setDisplayControl(1,(output&SEC_TP_MASK)>>SEC_TP_OFFSET);
+	}
+
+	if(output & PNL_SEQ_USAGE){
+		/* set  panel sequence */
+		swPanelPowerSequence((output&PNL_SEQ_MASK)>>PNL_SEQ_OFFSET,4);
+	}
+
+	if(output & DAC_USAGE)
+		setDAC((output & DAC_MASK)>>DAC_OFFSET);
+
+	if(output & DPMS_USAGE)
+		ddk750_setDPMS((output & DPMS_MASK) >> DPMS_OFFSET);
+}
+
+
+int ddk750_initDVIDisp(void)
+{
+    /* Initialize DVI. If the dviInit fail and the VendorID or the DeviceID are
+       not zeroed, then set the failure flag. If it is zeroe, it might mean
+       that the system is in Dual CRT Monitor configuration. */
+
+    /* De-skew enabled with default 111b value.
+       This will fix some artifacts problem in some mode on board 2.2.
+       Somehow this fix does not affect board 2.1.
+     */
+    if ((dviInit(1,  /* Select Rising Edge */
+                1,  /* Select 24-bit bus */
+                0,  /* Select Single Edge clock */
+                1,  /* Enable HSync as is */
+                1,  /* Enable VSync as is */
+                1,  /* Enable De-skew */
+                7,  /* Set the de-skew setting to maximum setup */
+                1,  /* Enable continuous Sync */
+                1,  /* Enable PLL Filter */
+                4   /* Use the recommended value for PLL Filter value */
+        ) != 0) && (dviGetVendorID() != 0x0000) && (dviGetDeviceID() != 0x0000))
+    {
+        return (-1);
+    }
+
+    /* TODO: Initialize other display component */
+
+    /* Success */
+    return 0;
+
+}
+
diff --git a/drivers/staging/sm750fb/ddk750_display.h b/drivers/staging/sm750fb/ddk750_display.h
new file mode 100644
index 0000000..ae0f84c
--- /dev/null
+++ b/drivers/staging/sm750fb/ddk750_display.h
@@ -0,0 +1,160 @@
+#ifndef DDK750_DISPLAY_H__
+#define DDK750_DISPLAY_H__
+
+/* panel path select
+	80000[29:28]
+*/
+
+#define PNL_2_OFFSET 0
+#define PNL_2_MASK (3 << PNL_2_OFFSET)
+#define PNL_2_USAGE	(PNL_2_MASK << 16)
+#define PNL_2_PRI 	((0 << PNL_2_OFFSET)|PNL_2_USAGE)
+#define PNL_2_SEC	((2 << PNL_2_OFFSET)|PNL_2_USAGE)
+
+
+/* primary timing & plane enable bit
+	1: 80000[8] & 80000[2] on
+	0: both off
+*/
+#define PRI_TP_OFFSET 4
+#define PRI_TP_MASK (1 << PRI_TP_OFFSET)
+#define PRI_TP_USAGE (PRI_TP_MASK << 16)
+#define PRI_TP_ON ((0x1 << PRI_TP_OFFSET)|PRI_TP_USAGE)
+#define PRI_TP_OFF ((0x0 << PRI_TP_OFFSET)|PRI_TP_USAGE)
+
+
+/* panel sequency status
+	80000[27:24]
+*/
+#define PNL_SEQ_OFFSET 6
+#define PNL_SEQ_MASK (1 << PNL_SEQ_OFFSET)
+#define PNL_SEQ_USAGE (PNL_SEQ_MASK << 16)
+#define PNL_SEQ_ON ((1 << PNL_SEQ_OFFSET)|PNL_SEQ_USAGE)
+#define PNL_SEQ_OFF ((0 << PNL_SEQ_OFFSET)|PNL_SEQ_USAGE)
+
+/* dual digital output
+	80000[19]
+*/
+#define DUAL_TFT_OFFSET 8
+#define DUAL_TFT_MASK (1 << DUAL_TFT_OFFSET)
+#define DUAL_TFT_USAGE (DUAL_TFT_MASK << 16)
+#define DUAL_TFT_ON ((1 << DUAL_TFT_OFFSET)|DUAL_TFT_USAGE)
+#define DUAL_TFT_OFF ((0 << DUAL_TFT_OFFSET)|DUAL_TFT_USAGE)
+
+/* secondary timing & plane enable bit
+	1:80200[8] & 80200[2] on
+	0: both off
+*/
+#define SEC_TP_OFFSET 5
+#define SEC_TP_MASK (1<< SEC_TP_OFFSET)
+#define SEC_TP_USAGE (SEC_TP_MASK << 16)
+#define SEC_TP_ON  ((0x1 << SEC_TP_OFFSET)|SEC_TP_USAGE)
+#define SEC_TP_OFF ((0x0 << SEC_TP_OFFSET)|SEC_TP_USAGE)
+
+/* crt path select
+	80200[19:18]
+*/
+#define CRT_2_OFFSET 2
+#define CRT_2_MASK (3 << CRT_2_OFFSET)
+#define CRT_2_USAGE (CRT_2_MASK << 16)
+#define CRT_2_PRI ((0x0 << CRT_2_OFFSET)|CRT_2_USAGE)
+#define CRT_2_SEC ((0x2 << CRT_2_OFFSET)|CRT_2_USAGE)
+
+
+/* DAC affect both DVI and DSUB
+	4[20]
+*/
+#define DAC_OFFSET 7
+#define DAC_MASK (1 << DAC_OFFSET)
+#define DAC_USAGE (DAC_MASK << 16)
+#define DAC_ON ((0x0<< DAC_OFFSET)|DAC_USAGE)
+#define DAC_OFF ((0x1 << DAC_OFFSET)|DAC_USAGE)
+
+/* DPMS only affect D-SUB head
+	0[31:30]
+*/
+#define DPMS_OFFSET 9
+#define DPMS_MASK (3 << DPMS_OFFSET)
+#define DPMS_USAGE (DPMS_MASK << 16)
+#define DPMS_OFF ((3 << DPMS_OFFSET)|DPMS_USAGE)
+#define DPMS_ON ((0 << DPMS_OFFSET)|DPMS_USAGE)
+
+
+
+/*
+	LCD1 means panel path TFT1  & panel path DVI (so enable DAC)
+	CRT means crt path DSUB
+*/
+#if 0
+typedef enum _disp_output_t
+{
+	NO_DISPLAY = DPMS_OFF,
+
+	LCD1_PRI = PNL_2_PRI|PRI_TP_ON|PNL_SEQ_ON|DPMS_OFF|DAC_ON,
+	LCD1_SEC = PNL_2_SEC|SEC_TP_ON|PNL_SEQ_ON|DPMS_OFF|DAC_ON,
+
+	LCD2_PRI = CRT_2_PRI|PRI_TP_ON|DUAL_TFT_ON|DPMS_OFF,
+	LCD2_SEC = CRT_2_SEC|SEC_TP_ON|DUAL_TFT_ON|DPMS_OFF,
+
+	DSUB_PRI = CRT_2_PRI|PRI_TP_ON|DAC_ON,
+	DSUB_SEC = CRT_2_SEC|SEC_TP_ON|DAC_ON,
+
+	LCD1_DSUB_PRI = PNL_2_PRI|PRI_TP_ON|PNL_SEQ_ON|
+					CRT_2_PRI|SEC_TP_OFF|DAC_ON,
+
+	LCD1_DSUB_SEC = PNL_2_SEC|SEC_TP_ON|PNL_SEQ_ON|
+					CRT_2_SEC|PRI_TP_OFF|DAC_ON,
+
+	/* LCD1 show primary and DSUB show secondary */
+	LCD1_DSUB_DUAL = PNL_2_PRI|PRI_TP_ON|PNL_SEQ_ON|
+					 CRT_2_SEC|SEC_TP_ON|DAC_ON,
+
+	/* LCD1 show secondary and DSUB show primary */
+	LCD1_DSUB_DUAL_SWAP = PNL_2_SEC|SEC_TP_ON|PNL_SEQ_ON|
+							CRT_2_PRI|PRI_TP_ON|DAC_ON,
+
+	LCD1_LCD2_PRI = PNL_2_PRI|PRI_TP_ON|PNL_SEQ_ON|
+					CRT_2_PRI|SEC_TP_OFF|DPMS_OFF|DUAL_TFT_ON,
+
+	LCD1_LCD2_SEC = PNL_2_SEC|SEC_TP_ON|PNL_SEQ_ON|
+					CRT_2_SEC|PRI_TP_OFF|DPMS_OFF|DUAL_TFT_ON,
+
+	LCD1_LCD2_DSUB_PRI = PNL_2_PRI|PRI_TP_ON|PNL_SEQ_ON|DAC_ON|
+						CRT_2_PRI|SEC_TP_OFF|DPMS_ON|DUAL_TFT_ON,
+
+	LCD1_LCD2_DSUB_SEC = PNL_2_SEC|SEC_TP_ON|PNL_SEQ_ON|DAC_ON|
+						CRT_2_SEC|PRI_TP_OFF|DPMS_ON|DUAL_TFT_ON,
+
+
+}
+disp_output_t;
+#else
+typedef enum _disp_output_t{
+	do_LCD1_PRI = PNL_2_PRI|PRI_TP_ON|PNL_SEQ_ON|DAC_ON,
+	do_LCD1_SEC = PNL_2_SEC|SEC_TP_ON|PNL_SEQ_ON|DAC_ON,
+#if 0
+	do_LCD2_PRI = CRT_2_PRI|PRI_TP_ON,
+	do_LCD2_SEC = CRT_2_SEC|SEC_TP_ON,
+#else
+	do_LCD2_PRI = CRT_2_PRI|PRI_TP_ON|DUAL_TFT_ON,
+	do_LCD2_SEC = CRT_2_SEC|SEC_TP_ON|DUAL_TFT_ON,
+#endif
+	/*
+	do_DSUB_PRI = CRT_2_PRI|PRI_TP_ON|DPMS_ON|DAC_ON,
+	do_DSUB_SEC = CRT_2_SEC|SEC_TP_ON|DPMS_ON|DAC_ON,
+	*/
+#if 0
+	do_CRT_PRI = CRT_2_PRI|PRI_TP_ON,
+	do_CRT_SEC = CRT_2_SEC|SEC_TP_ON,
+#else
+	do_CRT_PRI = CRT_2_PRI|PRI_TP_ON|DPMS_ON|DAC_ON,
+	do_CRT_SEC = CRT_2_SEC|SEC_TP_ON|DPMS_ON|DAC_ON,
+#endif
+}
+disp_output_t;
+#endif
+
+void ddk750_setLogicalDispOut(disp_output_t);
+int ddk750_initDVIDisp(void);
+
+#endif
diff --git a/drivers/staging/sm750fb/ddk750_dvi.c b/drivers/staging/sm750fb/ddk750_dvi.c
new file mode 100644
index 0000000..f5932bb
--- /dev/null
+++ b/drivers/staging/sm750fb/ddk750_dvi.c
@@ -0,0 +1,99 @@
+#define USE_DVICHIP 
+#ifdef USE_DVICHIP
+#include "ddk750_help.h"
+#include "ddk750_reg.h"
+#include "ddk750_dvi.h"
+#include "ddk750_sii164.h"
+
+
+/* This global variable contains all the supported driver and its corresponding
+   function API. Please set the function pointer to NULL whenever the function
+   is not supported. */
+static dvi_ctrl_device_t g_dcftSupportedDviController[] =
+{
+#ifdef DVI_CTRL_SII164
+    {
+        .pfnInit = sii164InitChip,
+        .pfnGetVendorId = sii164GetVendorID,
+        .pfnGetDeviceId = sii164GetDeviceID,
+#ifdef SII164_FULL_FUNCTIONS
+        .pfnResetChip = sii164ResetChip,
+        .pfnGetChipString = sii164GetChipString,
+        .pfnSetPower = sii164SetPower,
+        .pfnEnableHotPlugDetection = sii164EnableHotPlugDetection,
+        .pfnIsConnected = sii164IsConnected,
+        .pfnCheckInterrupt = sii164CheckInterrupt,
+        .pfnClearInterrupt = sii164ClearInterrupt,
+#endif
+    },
+#endif
+};
+
+
+int dviInit(
+    unsigned char edgeSelect,
+    unsigned char busSelect,
+    unsigned char dualEdgeClkSelect,
+    unsigned char hsyncEnable,
+    unsigned char vsyncEnable,
+    unsigned char deskewEnable,
+    unsigned char deskewSetting,
+    unsigned char continuousSyncEnable,
+    unsigned char pllFilterEnable,
+    unsigned char pllFilterValue
+			)
+{
+	dvi_ctrl_device_t *pCurrentDviCtrl;
+	pCurrentDviCtrl = g_dcftSupportedDviController;
+	if(pCurrentDviCtrl->pfnInit != NULL)
+	{
+		return pCurrentDviCtrl->pfnInit(edgeSelect, busSelect, dualEdgeClkSelect, hsyncEnable,
+                              vsyncEnable, deskewEnable, deskewSetting, continuousSyncEnable,
+                              pllFilterEnable, pllFilterValue);
+	}
+	return -1;//error
+}
+
+
+/*
+ *  dviGetVendorID
+ *      This function gets the vendor ID of the DVI controller chip.
+ *
+ *  Output:
+ *      Vendor ID
+ */
+unsigned short dviGetVendorID(void)
+{
+    dvi_ctrl_device_t *pCurrentDviCtrl;
+
+    //pCurrentDviCtrl = getDviCtrl();
+    pCurrentDviCtrl = g_dcftSupportedDviController;
+    if (pCurrentDviCtrl != (dvi_ctrl_device_t *)0)
+        return pCurrentDviCtrl->pfnGetVendorId();
+
+    return 0x0000;
+}
+
+
+/*
+ *  dviGetDeviceID
+ *      This function gets the device ID of the DVI controller chip.
+ *
+ *  Output:
+ *      Device ID
+ */
+unsigned short dviGetDeviceID(void)
+{
+    dvi_ctrl_device_t *pCurrentDviCtrl;
+
+//    pCurrentDviCtrl = getDviCtrl();
+	pCurrentDviCtrl = g_dcftSupportedDviController;
+    if (pCurrentDviCtrl != (dvi_ctrl_device_t *)0)
+        return pCurrentDviCtrl->pfnGetDeviceId();
+
+    return 0x0000;
+}
+
+#endif
+
+
diff --git a/drivers/staging/sm750fb/ddk750_dvi.h b/drivers/staging/sm750fb/ddk750_dvi.h
new file mode 100644
index 0000000..50bcec2
--- /dev/null
+++ b/drivers/staging/sm750fb/ddk750_dvi.h
@@ -0,0 +1,67 @@
+#ifndef DDK750_DVI_H__
+#define DDK750_DVI_H__
+
+/* dvi chip stuffs structros */
+
+typedef long (*PFN_DVICTRL_INIT)(
+    unsigned char edgeSelect,
+    unsigned char busSelect,
+    unsigned char dualEdgeClkSelect,
+    unsigned char hsyncEnable,
+    unsigned char vsyncEnable,
+    unsigned char deskewEnable,
+    unsigned char deskewSetting,
+    unsigned char continuousSyncEnable,
+    unsigned char pllFilterEnable,
+    unsigned char pllFilterValue);
+typedef void (*PFN_DVICTRL_RESETCHIP)(void);
+typedef char* (*PFN_DVICTRL_GETCHIPSTRING)(void);
+typedef unsigned short (*PFN_DVICTRL_GETVENDORID)(void);
+typedef unsigned short (*PFN_DVICTRL_GETDEVICEID)(void);
+typedef void (*PFN_DVICTRL_SETPOWER)(unsigned char powerUp);
+typedef void (*PFN_DVICTRL_HOTPLUGDETECTION)(unsigned char enableHotPlug);
+typedef unsigned char (*PFN_DVICTRL_ISCONNECTED)(void);
+typedef unsigned char (*PFN_DVICTRL_CHECKINTERRUPT)(void);
+typedef void (*PFN_DVICTRL_CLEARINTERRUPT)(void);
+
+
+
+/* Structure to hold all the function pointer to the DVI Controller. */
+typedef struct _dvi_ctrl_device_t
+{
+    PFN_DVICTRL_INIT                pfnInit;
+    PFN_DVICTRL_RESETCHIP           pfnResetChip;
+    PFN_DVICTRL_GETCHIPSTRING       pfnGetChipString;
+    PFN_DVICTRL_GETVENDORID         pfnGetVendorId;
+    PFN_DVICTRL_GETDEVICEID         pfnGetDeviceId;
+    PFN_DVICTRL_SETPOWER            pfnSetPower;
+    PFN_DVICTRL_HOTPLUGDETECTION    pfnEnableHotPlugDetection;
+    PFN_DVICTRL_ISCONNECTED         pfnIsConnected;
+    PFN_DVICTRL_CHECKINTERRUPT      pfnCheckInterrupt;
+    PFN_DVICTRL_CLEARINTERRUPT      pfnClearInterrupt;
+} dvi_ctrl_device_t;
+#define DVI_CTRL_SII164
+
+
+
+/* dvi functions prototype */
+int dviInit(
+    unsigned char edgeSelect,
+    unsigned char busSelect,
+    unsigned char dualEdgeClkSelect,
+    unsigned char hsyncEnable,
+    unsigned char vsyncEnable,
+    unsigned char deskewEnable,
+    unsigned char deskewSetting,
+    unsigned char continuousSyncEnable,
+    unsigned char pllFilterEnable,
+    unsigned char pllFilterValue
+);
+
+unsigned short dviGetVendorID(void);
+unsigned short dviGetDeviceID(void);
+
+
+
+#endif
+
diff --git a/drivers/staging/sm750fb/ddk750_help.c b/drivers/staging/sm750fb/ddk750_help.c
new file mode 100644
index 0000000..c68ff3b
--- /dev/null
+++ b/drivers/staging/sm750fb/ddk750_help.c
@@ -0,0 +1,19 @@
+//#include "ddk750_reg.h"
+//#include "ddk750_chip.h"
+#include "ddk750_help.h"
+
+void __iomem * mmio750 = NULL;
+char revId750 = 0;
+unsigned short devId750 = 0;
+
+/* after driver mapped io registers, use this function first */
+void ddk750_set_mmio(void __iomem * addr,unsigned short devId,char revId)
+{
+	mmio750 = addr;
+	devId750 = devId;
+	revId750 = revId;
+	if(revId == 0xfe)
+		printk("found sm750le\n");
+}
+
+
diff --git a/drivers/staging/sm750fb/ddk750_help.h b/drivers/staging/sm750fb/ddk750_help.h
new file mode 100644
index 0000000..07c8264
--- /dev/null
+++ b/drivers/staging/sm750fb/ddk750_help.h
@@ -0,0 +1,29 @@
+#ifndef DDK750_HELP_H__
+#define DDK750_HELP_H__
+#include "ddk750_chip.h"
+#ifndef USE_INTERNAL_REGISTER_ACCESS
+
+#include <linux/ioport.h>
+#include <asm/io.h>
+#include <asm/uaccess.h>
+#include "sm750_help.h"
+
+
+#if 0
+/* if 718 big endian turned on,be aware that don't use this driver for general use,only for ppc big-endian */
+#warning "big endian on target cpu and enable nature big endian support of 718 capability !"
+#define PEEK32(addr)  			__raw_readl(mmio750 + addr)
+#define POKE32(addr,data) 		__raw_writel(data, mmio750 + addr)
+#else /* software control endianess */
+#define PEEK32(addr) readl(addr + mmio750)
+#define POKE32(addr,data) writel(data, addr + mmio750)
+#endif
+
+extern void __iomem * mmio750;
+extern char revId750;
+extern unsigned short devId750;
+#else
+/* implement if you want use it*/
+#endif
+
+#endif
diff --git a/drivers/staging/sm750fb/ddk750_hwi2c.c b/drivers/staging/sm750fb/ddk750_hwi2c.c
new file mode 100644
index 0000000..7826376
--- /dev/null
+++ b/drivers/staging/sm750fb/ddk750_hwi2c.c
@@ -0,0 +1,271 @@
+#define USE_HW_I2C
+#ifdef USE_HW_I2C
+#include "ddk750_help.h"
+#include "ddk750_reg.h"
+#include "ddk750_hwi2c.h"
+#include "ddk750_power.h"
+
+#define MAX_HWI2C_FIFO                  16
+#define HWI2C_WAIT_TIMEOUT              0xF0000
+
+
+int hwI2CInit(
+    unsigned char busSpeedMode
+)
+{
+    unsigned int value;
+
+    /* Enable GPIO 30 & 31 as IIC clock & data */
+	value = PEEK32(GPIO_MUX);
+
+    value = FIELD_SET(value, GPIO_MUX, 30, I2C) |
+			FIELD_SET(0, GPIO_MUX, 31, I2C);
+	POKE32(GPIO_MUX, value);
+
+    /* Enable Hardware I2C power.
+       TODO: Check if we need to enable GPIO power?
+     */
+    enableI2C(1);
+
+    /* Enable the I2C Controller and set the bus speed mode */
+    value = PEEK32(I2C_CTRL);
+    if (busSpeedMode == 0)
+        value = FIELD_SET(value, I2C_CTRL, MODE, STANDARD);
+    else
+        value = FIELD_SET(value, I2C_CTRL, MODE, FAST);
+    value = FIELD_SET(value, I2C_CTRL, EN, ENABLE);
+    POKE32(I2C_CTRL, value);
+
+    return 0;
+}
+
+
+void hwI2CClose(void)
+{
+    unsigned int value;
+
+    /* Disable I2C controller */
+    value = PEEK32(I2C_CTRL);
+    value = FIELD_SET(value, I2C_CTRL, EN, DISABLE);
+    POKE32(I2C_CTRL, value);
+
+    /* Disable I2C Power */
+    enableI2C(0);
+
+    /* Set GPIO 30 & 31 back as GPIO pins */
+    value = PEEK32(GPIO_MUX);
+    value = FIELD_SET(value, GPIO_MUX, 30, GPIO);
+    value = FIELD_SET(value, GPIO_MUX, 31, GPIO);
+    POKE32(GPIO_MUX, value);
+}
+
+
+static long hwI2CWaitTXDone(void)
+{
+    unsigned int timeout;
+
+    /* Wait until the transfer is completed. */
+    timeout = HWI2C_WAIT_TIMEOUT;
+	while ((FIELD_GET(PEEK32(I2C_STATUS), I2C_STATUS, TX) != I2C_STATUS_TX_COMPLETED) &&
+           (timeout != 0))
+		timeout--;
+
+	if (timeout == 0)
+	    return (-1);
+
+    return 0;
+}
+
+
+
+/*
+ *  This function writes data to the i2c slave device registers.
+ *
+ *  Parameters:
+ *      deviceAddress   - i2c Slave device address
+ *      length          - Total number of bytes to be written to the device
+ *      pBuffer         - The buffer that contains the data to be written to the
+ *                     i2c device.
+ *
+ *  Return Value:
+ *      Total number of bytes those are actually written.
+ */
+static unsigned int hwI2CWriteData(
+    unsigned char deviceAddress,
+    unsigned int length,
+    unsigned char *pBuffer
+)
+{
+    unsigned char count, i;
+    unsigned int totalBytes = 0;
+
+    /* Set the Device Address */
+    POKE32(I2C_SLAVE_ADDRESS, deviceAddress & ~0x01);
+
+    /* Write data.
+     * Note:
+     *      Only 16 byte can be accessed per i2c start instruction.
+     */
+    do
+    {
+        /* Reset I2C by writing 0 to I2C_RESET register to clear the previous status. */
+        POKE32(I2C_RESET, 0);
+
+        /* Set the number of bytes to be written */
+        if (length < MAX_HWI2C_FIFO)
+            count = length - 1;
+        else
+            count = MAX_HWI2C_FIFO - 1;
+        POKE32(I2C_BYTE_COUNT, count);
+
+        /* Move the data to the I2C data register */
+	    for (i = 0; i <= count; i++)
+            POKE32(I2C_DATA0 + i, *pBuffer++);
+
+        /* Start the I2C */
+        POKE32(I2C_CTRL, FIELD_SET(PEEK32(I2C_CTRL), I2C_CTRL, CTRL, START));
+
+        /* Wait until the transfer is completed. */
+        if (hwI2CWaitTXDone() != 0)
+            break;
+
+        /* Substract length */
+        length -= (count + 1);
+
+        /* Total byte written */
+        totalBytes += (count + 1);
+
+    } while (length > 0);
+
+    return totalBytes;
+}
+
+
+
+
+/*
+ *  This function reads data from the slave device and stores them
+ *  in the given buffer
+ *
+ *  Parameters:
+ *      deviceAddress   - i2c Slave device address
+ *      length          - Total number of bytes to be read
+ *      pBuffer         - Pointer to a buffer to be filled with the data read
+ *                     from the slave device. It has to be the same size as the
+ *                     length to make sure that it can keep all the data read.
+ *
+ *  Return Value:
+ *      Total number of actual bytes read from the slave device
+ */
+static unsigned int hwI2CReadData(
+    unsigned char deviceAddress,
+    unsigned int length,
+    unsigned char *pBuffer
+)
+{
+    unsigned char count, i;
+    unsigned int totalBytes = 0;
+
+    /* Set the Device Address */
+    POKE32(I2C_SLAVE_ADDRESS, deviceAddress | 0x01);
+
+    /* Read data and save them to the buffer.
+     * Note:
+     *      Only 16 byte can be accessed per i2c start instruction.
+     */
+    do
+    {
+        /* Reset I2C by writing 0 to I2C_RESET register to clear all the status. */
+        POKE32(I2C_RESET, 0);
+
+        /* Set the number of bytes to be read */
+        if (length <= MAX_HWI2C_FIFO)
+            count = length - 1;
+        else
+            count = MAX_HWI2C_FIFO - 1;
+        POKE32(I2C_BYTE_COUNT, count);
+
+        /* Start the I2C */
+        POKE32(I2C_CTRL, FIELD_SET(PEEK32(I2C_CTRL), I2C_CTRL, CTRL, START));
+
+        /* Wait until transaction done. */
+        if (hwI2CWaitTXDone() != 0)
+            break;
+
+        /* Save the data to the given buffer */
+        for (i = 0; i <= count; i++)
+		    *pBuffer++ = PEEK32(I2C_DATA0 + i);
+
+        /* Substract length by 16 */
+        length -= (count + 1);
+
+        /* Number of bytes read. */
+        totalBytes += (count + 1);
+
+    } while (length > 0);
+
+    return totalBytes;
+}
+
+
+
+
+/*
+ *  This function reads the slave device's register
+ *
+ *  Parameters:
+ *      deviceAddress   - i2c Slave device address which register
+ *                        to be read from
+ *      registerIndex   - Slave device's register to be read
+ *
+ *  Return Value:
+ *      Register value
+ */
+unsigned char hwI2CReadReg(
+    unsigned char deviceAddress,
+    unsigned char registerIndex
+)
+{
+    unsigned char value = (0xFF);
+
+    if (hwI2CWriteData(deviceAddress, 1, &registerIndex) == 1)
+        hwI2CReadData(deviceAddress, 1, &value);
+
+    return value;
+}
+
+
+
+
+
+/*
+ *  This function writes a value to the slave device's register
+ *
+ *  Parameters:
+ *      deviceAddress   - i2c Slave device address which register
+ *                        to be written
+ *      registerIndex   - Slave device's register to be written
+ *      data            - Data to be written to the register
+ *
+ *  Result:
+ *          0   - Success
+ *         -1   - Fail
+ */
+int hwI2CWriteReg(
+    unsigned char deviceAddress,
+    unsigned char registerIndex,
+    unsigned char data
+)
+{
+    unsigned char value[2];
+
+    value[0] = registerIndex;
+    value[1] = data;
+    if (hwI2CWriteData(deviceAddress, 2, value) == 2)
+        return 0;
+
+    return (-1);
+}
+
+
+#endif
diff --git a/drivers/staging/sm750fb/ddk750_hwi2c.h b/drivers/staging/sm750fb/ddk750_hwi2c.h
new file mode 100644
index 0000000..ad31149
--- /dev/null
+++ b/drivers/staging/sm750fb/ddk750_hwi2c.h
@@ -0,0 +1,10 @@
+#ifndef DDK750_HWI2C_H__
+#define DDK750_HWI2C_H__
+
+/* hwi2c functions */
+int hwI2CInit(unsigned char busSpeedMode);
+void hwI2CClose(void);
+
+unsigned char hwI2CReadReg(unsigned char deviceAddress,unsigned char registerIndex);
+int hwI2CWriteReg(unsigned char deviceAddress,unsigned char registerIndex,unsigned char data);
+#endif
diff --git a/drivers/staging/sm750fb/ddk750_mode.c b/drivers/staging/sm750fb/ddk750_mode.c
new file mode 100644
index 0000000..2e418fb
--- /dev/null
+++ b/drivers/staging/sm750fb/ddk750_mode.c
@@ -0,0 +1,205 @@
+
+#include "ddk750_help.h"
+#include "ddk750_reg.h"
+#include "ddk750_mode.h"
+#include "ddk750_chip.h"
+
+/*
+	SM750LE only:
+    This function takes care extra registers and bit fields required to set
+    up a mode in SM750LE
+
+	Explanation about Display Control register:
+    HW only supports 7 predefined pixel clocks, and clock select is
+    in bit 29:27 of	Display Control register.
+*/
+static unsigned long displayControlAdjust_SM750LE(mode_parameter_t *pModeParam, unsigned long dispControl)
+{
+	unsigned long x, y;
+
+	x = pModeParam->horizontal_display_end;
+	y = pModeParam->vertical_display_end;
+
+    /* SM750LE has to set up the top-left and bottom-right
+       registers as well.
+       Note that normal SM750/SM718 only use those two register for
+       auto-centering mode.
+    */
+    POKE32(CRT_AUTO_CENTERING_TL,
+      FIELD_VALUE(0, CRT_AUTO_CENTERING_TL, TOP, 0)
+    | FIELD_VALUE(0, CRT_AUTO_CENTERING_TL, LEFT, 0));
+
+    POKE32(CRT_AUTO_CENTERING_BR,
+      FIELD_VALUE(0, CRT_AUTO_CENTERING_BR, BOTTOM, y-1)
+    | FIELD_VALUE(0, CRT_AUTO_CENTERING_BR, RIGHT, x-1));
+
+    /* Assume common fields in dispControl have been properly set before
+       calling this function.
+       This function only sets the extra fields in dispControl.
+    */
+
+	/* Clear bit 29:27 of display control register */
+    dispControl &= FIELD_CLEAR(CRT_DISPLAY_CTRL, CLK);
+
+	/* Set bit 29:27 of display control register for the right clock */
+	/* Note that SM750LE only need to supported 7 resoluitons. */
+	if ( x == 800 && y == 600 )
+    	dispControl = FIELD_SET(dispControl, CRT_DISPLAY_CTRL, CLK, PLL41);
+	else if (x == 1024 && y == 768)
+    	dispControl = FIELD_SET(dispControl, CRT_DISPLAY_CTRL, CLK, PLL65);
+	else if (x == 1152 && y == 864)
+    	dispControl = FIELD_SET(dispControl, CRT_DISPLAY_CTRL, CLK, PLL80);
+	else if (x == 1280 && y == 768)
+    	dispControl = FIELD_SET(dispControl, CRT_DISPLAY_CTRL, CLK, PLL80);
+	else if (x == 1280 && y == 720)
+    	dispControl = FIELD_SET(dispControl, CRT_DISPLAY_CTRL, CLK, PLL74);
+	else if (x == 1280 && y == 960)
+    	dispControl = FIELD_SET(dispControl, CRT_DISPLAY_CTRL, CLK, PLL108);
+	else if (x == 1280 && y == 1024)
+    	dispControl = FIELD_SET(dispControl, CRT_DISPLAY_CTRL, CLK, PLL108);
+	else /* default to VGA clock */
+    	dispControl = FIELD_SET(dispControl, CRT_DISPLAY_CTRL, CLK, PLL25);
+
+	/* Set bit 25:24 of display controller */
+    dispControl = FIELD_SET(dispControl, CRT_DISPLAY_CTRL, CRTSELECT, CRT);
+    dispControl = FIELD_SET(dispControl, CRT_DISPLAY_CTRL, RGBBIT, 24BIT);
+
+    /* Set bit 14 of display controller */
+    dispControl = FIELD_SET(dispControl, CRT_DISPLAY_CTRL, CLOCK_PHASE, ACTIVE_LOW);
+
+    POKE32(CRT_DISPLAY_CTRL, dispControl);
+
+	return dispControl;
+}
+
+
+
+/* only timing related registers will be  programed */
+static int programModeRegisters(mode_parameter_t * pModeParam,pll_value_t * pll)
+{
+	int ret = 0;
+	int cnt = 0;
+	unsigned int ulTmpValue,ulReg;
+	if(pll->clockType == SECONDARY_PLL)
+	{
+		/* programe secondary pixel clock */
+		POKE32(CRT_PLL_CTRL,formatPllReg(pll));
+        POKE32(CRT_HORIZONTAL_TOTAL,
+              FIELD_VALUE(0, CRT_HORIZONTAL_TOTAL, TOTAL, pModeParam->horizontal_total - 1)
+            | FIELD_VALUE(0, CRT_HORIZONTAL_TOTAL, DISPLAY_END, pModeParam->horizontal_display_end - 1));
+
+        POKE32(CRT_HORIZONTAL_SYNC,
+              FIELD_VALUE(0, CRT_HORIZONTAL_SYNC, WIDTH, pModeParam->horizontal_sync_width)
+            | FIELD_VALUE(0, CRT_HORIZONTAL_SYNC, START, pModeParam->horizontal_sync_start - 1));
+
+        POKE32(CRT_VERTICAL_TOTAL,
+              FIELD_VALUE(0, CRT_VERTICAL_TOTAL, TOTAL, pModeParam->vertical_total - 1)
+            | FIELD_VALUE(0, CRT_VERTICAL_TOTAL, DISPLAY_END, pModeParam->vertical_display_end - 1));
+
+        POKE32(CRT_VERTICAL_SYNC,
+              FIELD_VALUE(0, CRT_VERTICAL_SYNC, HEIGHT, pModeParam->vertical_sync_height)
+            | FIELD_VALUE(0, CRT_VERTICAL_SYNC, START, pModeParam->vertical_sync_start - 1));
+
+
+		ulTmpValue = FIELD_VALUE(0,CRT_DISPLAY_CTRL,VSYNC_PHASE,pModeParam->vertical_sync_polarity)|
+					  FIELD_VALUE(0,CRT_DISPLAY_CTRL,HSYNC_PHASE,pModeParam->horizontal_sync_polarity)|
+					  FIELD_SET(0,CRT_DISPLAY_CTRL,TIMING,ENABLE)|
+					  FIELD_SET(0,CRT_DISPLAY_CTRL,PLANE,ENABLE);
+
+
+		if(getChipType() == SM750LE){
+			displayControlAdjust_SM750LE(pModeParam,ulTmpValue);
+		}else{
+			ulReg = PEEK32(CRT_DISPLAY_CTRL)
+					& FIELD_CLEAR(CRT_DISPLAY_CTRL,VSYNC_PHASE)
+					& FIELD_CLEAR(CRT_DISPLAY_CTRL,HSYNC_PHASE)
+					& FIELD_CLEAR(CRT_DISPLAY_CTRL,TIMING)
+					& FIELD_CLEAR(CRT_DISPLAY_CTRL,PLANE);
+
+			 POKE32(CRT_DISPLAY_CTRL,ulTmpValue|ulReg);
+		}
+
+	}
+	else if(pll->clockType == PRIMARY_PLL)
+	{
+		unsigned int ulReservedBits;
+		POKE32(PANEL_PLL_CTRL,formatPllReg(pll));
+
+        POKE32(PANEL_HORIZONTAL_TOTAL,
+              FIELD_VALUE(0, PANEL_HORIZONTAL_TOTAL, TOTAL, pModeParam->horizontal_total - 1)
+            | FIELD_VALUE(0, PANEL_HORIZONTAL_TOTAL, DISPLAY_END, pModeParam->horizontal_display_end - 1));
+
+        POKE32(PANEL_HORIZONTAL_SYNC,
+              FIELD_VALUE(0, PANEL_HORIZONTAL_SYNC, WIDTH, pModeParam->horizontal_sync_width)
+            | FIELD_VALUE(0, PANEL_HORIZONTAL_SYNC, START, pModeParam->horizontal_sync_start - 1));
+
+        POKE32(PANEL_VERTICAL_TOTAL,
+              FIELD_VALUE(0, PANEL_VERTICAL_TOTAL, TOTAL, pModeParam->vertical_total - 1)
+            | FIELD_VALUE(0, PANEL_VERTICAL_TOTAL, DISPLAY_END, pModeParam->vertical_display_end - 1));
+
+        POKE32(PANEL_VERTICAL_SYNC,
+              FIELD_VALUE(0, PANEL_VERTICAL_SYNC, HEIGHT, pModeParam->vertical_sync_height)
+            | FIELD_VALUE(0, PANEL_VERTICAL_SYNC, START, pModeParam->vertical_sync_start - 1));
+
+		ulTmpValue = FIELD_VALUE(0,PANEL_DISPLAY_CTRL,VSYNC_PHASE,pModeParam->vertical_sync_polarity)|
+					FIELD_VALUE(0,PANEL_DISPLAY_CTRL,HSYNC_PHASE,pModeParam->horizontal_sync_polarity)|
+					FIELD_VALUE(0,PANEL_DISPLAY_CTRL,CLOCK_PHASE,pModeParam->clock_phase_polarity)|
+					FIELD_SET(0,PANEL_DISPLAY_CTRL,TIMING,ENABLE)|
+					FIELD_SET(0,PANEL_DISPLAY_CTRL,PLANE,ENABLE);
+
+        ulReservedBits = FIELD_SET(0, PANEL_DISPLAY_CTRL, RESERVED_1_MASK, ENABLE) |
+                         FIELD_SET(0, PANEL_DISPLAY_CTRL, RESERVED_2_MASK, ENABLE) |
+                         FIELD_SET(0, PANEL_DISPLAY_CTRL, RESERVED_3_MASK, ENABLE)|
+                         FIELD_SET(0,PANEL_DISPLAY_CTRL,VSYNC,ACTIVE_LOW);
+
+        ulReg = (PEEK32(PANEL_DISPLAY_CTRL) & ~ulReservedBits)
+              & FIELD_CLEAR(PANEL_DISPLAY_CTRL, CLOCK_PHASE)
+              & FIELD_CLEAR(PANEL_DISPLAY_CTRL, VSYNC_PHASE)
+              & FIELD_CLEAR(PANEL_DISPLAY_CTRL, HSYNC_PHASE)
+              & FIELD_CLEAR(PANEL_DISPLAY_CTRL, TIMING)
+              & FIELD_CLEAR(PANEL_DISPLAY_CTRL, PLANE);
+
+
+		/* May a hardware bug or just my test chip (not confirmed).
+		* PANEL_DISPLAY_CTRL register seems requiring few writes
+		* before a value can be succesfully written in.
+		* Added some masks to mask out the reserved bits.
+		* Note: This problem happens by design. The hardware will wait for the
+		*       next vertical sync to turn on/off the plane.
+		*/
+
+		POKE32(PANEL_DISPLAY_CTRL,ulTmpValue|ulReg);
+#if 1
+		while((PEEK32(PANEL_DISPLAY_CTRL) & ~ulReservedBits) != (ulTmpValue|ulReg))
+		{
+			cnt++;
+			if(cnt > 1000)
+				break;
+			POKE32(PANEL_DISPLAY_CTRL,ulTmpValue|ulReg);
+		}
+#endif
+	}
+	else{
+		ret = -1;
+	}
+	return ret;
+}
+
+int ddk750_setModeTiming(mode_parameter_t * parm,clock_type_t clock)
+{
+	pll_value_t pll;
+	unsigned int uiActualPixelClk;
+	pll.inputFreq = DEFAULT_INPUT_CLOCK;
+	pll.clockType = clock;
+
+	uiActualPixelClk = calcPllValue(parm->pixel_clock,&pll);
+	if(getChipType() == SM750LE){
+		/* set graphic mode via IO method */
+		outb_p(0x88,0x3d4);
+		outb_p(0x06,0x3d5);
+	}
+	programModeRegisters(parm,&pll);
+	return 0;
+}
+
+
diff --git a/drivers/staging/sm750fb/ddk750_mode.h b/drivers/staging/sm750fb/ddk750_mode.h
new file mode 100644
index 0000000..6f8df96
--- /dev/null
+++ b/drivers/staging/sm750fb/ddk750_mode.h
@@ -0,0 +1,43 @@
+#ifndef DDK750_MODE_H__
+#define DDK750_MODE_H__
+
+#include "ddk750_chip.h"
+
+typedef enum _spolarity_t
+{
+    POS = 0, /* positive */
+    NEG, /* negative */
+}
+spolarity_t;
+
+
+typedef struct _mode_parameter_t
+{
+    /* Horizontal timing. */
+    unsigned long horizontal_total;
+    unsigned long horizontal_display_end;
+    unsigned long horizontal_sync_start;
+    unsigned long horizontal_sync_width;
+    spolarity_t horizontal_sync_polarity;
+
+    /* Vertical timing. */
+    unsigned long vertical_total;
+    unsigned long vertical_display_end;
+    unsigned long vertical_sync_start;
+    unsigned long vertical_sync_height;
+    spolarity_t vertical_sync_polarity;
+
+    /* Refresh timing. */
+    unsigned long pixel_clock;
+    unsigned long horizontal_frequency;
+    unsigned long vertical_frequency;
+
+    /* Clock Phase. This clock phase only applies to Panel. */
+    spolarity_t clock_phase_polarity;
+}
+mode_parameter_t;
+
+int ddk750_setModeTiming(mode_parameter_t *,clock_type_t);
+
+
+#endif
diff --git a/drivers/staging/sm750fb/ddk750_power.c b/drivers/staging/sm750fb/ddk750_power.c
new file mode 100644
index 0000000..cbb9767
--- /dev/null
+++ b/drivers/staging/sm750fb/ddk750_power.c
@@ -0,0 +1,239 @@
+#include "ddk750_help.h"
+#include "ddk750_reg.h"
+#include "ddk750_power.h"
+
+void ddk750_setDPMS(DPMS_t state)
+{
+	unsigned int value;
+	if(getChipType() == SM750LE){
+		value = PEEK32(CRT_DISPLAY_CTRL);
+		POKE32(CRT_DISPLAY_CTRL,FIELD_VALUE(value,CRT_DISPLAY_CTRL,DPMS,state));
+	}else{
+		value = PEEK32(SYSTEM_CTRL);
+		value= FIELD_VALUE(value,SYSTEM_CTRL,DPMS,state);
+		POKE32(SYSTEM_CTRL, value);
+	}
+}
+
+unsigned int getPowerMode(void)
+{
+	if(getChipType() == SM750LE)
+		return 0;
+    return (FIELD_GET(PEEK32(POWER_MODE_CTRL), POWER_MODE_CTRL, MODE));
+}
+
+
+/*
+ * SM50x can operate in one of three modes: 0, 1 or Sleep.
+ * On hardware reset, power mode 0 is default.
+ */
+void setPowerMode(unsigned int powerMode)
+{
+    unsigned int control_value = 0;
+
+    control_value = PEEK32(POWER_MODE_CTRL);
+
+	if(getChipType() == SM750LE)
+		return;
+
+    switch (powerMode)
+    {
+        case POWER_MODE_CTRL_MODE_MODE0:
+            control_value = FIELD_SET(control_value, POWER_MODE_CTRL, MODE, MODE0);
+            break;
+
+        case POWER_MODE_CTRL_MODE_MODE1:
+            control_value = FIELD_SET(control_value, POWER_MODE_CTRL, MODE, MODE1);
+            break;
+
+        case POWER_MODE_CTRL_MODE_SLEEP:
+            control_value = FIELD_SET(control_value, POWER_MODE_CTRL, MODE, SLEEP);
+            break;
+
+        default:
+            break;
+    }
+
+    /* Set up other fields in Power Control Register */
+    if (powerMode == POWER_MODE_CTRL_MODE_SLEEP)
+    {
+        control_value =
+#ifdef VALIDATION_CHIP
+            FIELD_SET(  control_value, POWER_MODE_CTRL, 336CLK, OFF) |
+#endif
+            FIELD_SET(  control_value, POWER_MODE_CTRL, OSC_INPUT,  OFF);
+    }
+    else
+    {
+        control_value =
+#ifdef VALIDATION_CHIP
+            FIELD_SET(  control_value, POWER_MODE_CTRL, 336CLK, ON) |
+#endif
+            FIELD_SET(  control_value, POWER_MODE_CTRL, OSC_INPUT,  ON);
+    }
+
+    /* Program new power mode. */
+    POKE32(POWER_MODE_CTRL, control_value);
+}
+
+void setCurrentGate(unsigned int gate)
+{
+    unsigned int gate_reg;
+    unsigned int mode;
+
+    /* Get current power mode. */
+    mode = getPowerMode();
+
+    switch (mode)
+    {
+        case POWER_MODE_CTRL_MODE_MODE0:
+            gate_reg = MODE0_GATE;
+            break;
+
+        case POWER_MODE_CTRL_MODE_MODE1:
+            gate_reg = MODE1_GATE;
+            break;
+
+        default:
+            gate_reg = MODE0_GATE;
+            break;
+    }
+    POKE32(gate_reg, gate);
+}
+
+
+
+/*
+ * This function enable/disable the 2D engine.
+ */
+void enable2DEngine(unsigned int enable)
+{
+    uint32_t gate;
+
+    gate = PEEK32(CURRENT_GATE);
+    if (enable)
+    {
+        gate = FIELD_SET(gate, CURRENT_GATE, DE,  ON);
+        gate = FIELD_SET(gate, CURRENT_GATE, CSC, ON);
+    }
+    else
+    {
+        gate = FIELD_SET(gate, CURRENT_GATE, DE,  OFF);
+        gate = FIELD_SET(gate, CURRENT_GATE, CSC, OFF);
+    }
+
+    setCurrentGate(gate);
+}
+
+
+/*
+ * This function enable/disable the ZV Port.
+ */
+void enableZVPort(unsigned int enable)
+{
+    uint32_t gate;
+
+    /* Enable ZV Port Gate */
+    gate = PEEK32(CURRENT_GATE);
+    if (enable)
+    {
+        gate = FIELD_SET(gate, CURRENT_GATE, ZVPORT, ON);
+#if 1
+        /* Using Software I2C */
+        gate = FIELD_SET(gate, CURRENT_GATE, GPIO, ON);
+#else
+        /* Using Hardware I2C */
+        gate = FIELD_SET(gate, CURRENT_GATE, I2C,    ON);
+#endif
+    }
+    else
+    {
+        /* Disable ZV Port Gate. There is no way to know whether the GPIO pins are being used
+           or not. Therefore, do not disable the GPIO gate. */
+        gate = FIELD_SET(gate, CURRENT_GATE, ZVPORT, OFF);
+    }
+
+    setCurrentGate(gate);
+}
+
+
+void enableSSP(unsigned int enable)
+{
+    uint32_t gate;
+
+    /* Enable SSP Gate */
+    gate = PEEK32(CURRENT_GATE);
+    if (enable)
+        gate = FIELD_SET(gate, CURRENT_GATE, SSP, ON);
+    else
+        gate = FIELD_SET(gate, CURRENT_GATE, SSP, OFF);
+
+    setCurrentGate(gate);
+}
+
+void enableDMA(unsigned int enable)
+{
+    uint32_t gate;
+
+    /* Enable DMA Gate */
+    gate = PEEK32(CURRENT_GATE);
+    if (enable)
+        gate = FIELD_SET(gate, CURRENT_GATE, DMA, ON);
+    else
+        gate = FIELD_SET(gate, CURRENT_GATE, DMA, OFF);
+
+    setCurrentGate(gate);
+}
+
+/*
+ * This function enable/disable the GPIO Engine
+ */
+void enableGPIO(unsigned int enable)
+{
+    uint32_t gate;
+
+    /* Enable GPIO Gate */
+    gate = PEEK32(CURRENT_GATE);
+    if (enable)
+        gate = FIELD_SET(gate, CURRENT_GATE, GPIO, ON);
+    else
+        gate = FIELD_SET(gate, CURRENT_GATE, GPIO, OFF);
+
+    setCurrentGate(gate);
+}
+
+/*
+ * This function enable/disable the PWM Engine
+ */
+void enablePWM(unsigned int enable)
+{
+    uint32_t gate;
+
+    /* Enable PWM Gate */
+    gate = PEEK32(CURRENT_GATE);
+    if (enable)
+        gate = FIELD_SET(gate, CURRENT_GATE, PWM, ON);
+    else
+        gate = FIELD_SET(gate, CURRENT_GATE, PWM, OFF);
+
+    setCurrentGate(gate);
+}
+
+/*
+ * This function enable/disable the I2C Engine
+ */
+void enableI2C(unsigned int enable)
+{
+    uint32_t gate;
+
+    /* Enable I2C Gate */
+    gate = PEEK32(CURRENT_GATE);
+    if (enable)
+        gate = FIELD_SET(gate, CURRENT_GATE, I2C, ON);
+    else
+        gate = FIELD_SET(gate, CURRENT_GATE, I2C, OFF);
+
+    setCurrentGate(gate);
+}
+
+
diff --git a/drivers/staging/sm750fb/ddk750_power.h b/drivers/staging/sm750fb/ddk750_power.h
new file mode 100644
index 0000000..71dc7f9
--- /dev/null
+++ b/drivers/staging/sm750fb/ddk750_power.h
@@ -0,0 +1,71 @@
+#ifndef DDK750_POWER_H__
+#define DDK750_POWER_H__
+
+typedef enum _DPMS_t
+{
+    crtDPMS_ON = 0x0,
+    crtDPMS_STANDBY = 0x1,
+    crtDPMS_SUSPEND = 0x2,
+    crtDPMS_OFF = 0x3,
+}
+DPMS_t;
+
+#define setDAC(off) \
+		{	\
+		POKE32(MISC_CTRL,FIELD_VALUE(PEEK32(MISC_CTRL),	\
+									MISC_CTRL,	\
+									DAC_POWER,	\
+									off));	\
+		}
+
+void ddk750_setDPMS(DPMS_t);
+
+unsigned int getPowerMode(void);
+
+/*
+ * This function sets the current power mode
+ */
+void setPowerMode(unsigned int powerMode);
+
+/*
+ * This function sets current gate
+ */
+void setCurrentGate(unsigned int gate);
+
+/*
+ * This function enable/disable the 2D engine.
+ */
+void enable2DEngine(unsigned int enable);
+
+/*
+ * This function enable/disable the ZV Port
+ */
+void enableZVPort(unsigned int enable);
+
+/*
+ * This function enable/disable the DMA Engine
+ */
+void enableDMA(unsigned int enable);
+
+/*
+ * This function enable/disable the GPIO Engine
+ */
+void enableGPIO(unsigned int enable);
+
+/*
+ * This function enable/disable the PWM Engine
+ */
+void enablePWM(unsigned int enable);
+
+/*
+ * This function enable/disable the I2C Engine
+ */
+void enableI2C(unsigned int enable);
+
+/*
+ * This function enable/disable the SSP.
+ */
+void enableSSP(unsigned int enable);
+
+
+#endif
diff --git a/drivers/staging/sm750fb/ddk750_reg.h b/drivers/staging/sm750fb/ddk750_reg.h
new file mode 100644
index 0000000..2016f97
--- /dev/null
+++ b/drivers/staging/sm750fb/ddk750_reg.h
@@ -0,0 +1,2616 @@
+#ifndef DDK750_REG_H__
+#define DDK750_REG_H__
+
+/* New register for SM750LE */
+#define DE_STATE1                                        0x100054
+#define DE_STATE1_DE_ABORT                               0:0
+#define DE_STATE1_DE_ABORT_OFF                           0
+#define DE_STATE1_DE_ABORT_ON                            1
+
+#define DE_STATE2                                        0x100058
+#define DE_STATE2_DE_FIFO                                3:3
+#define DE_STATE2_DE_FIFO_NOTEMPTY                       0
+#define DE_STATE2_DE_FIFO_EMPTY                          1
+#define DE_STATE2_DE_STATUS                              2:2
+#define DE_STATE2_DE_STATUS_IDLE                         0
+#define DE_STATE2_DE_STATUS_BUSY                         1
+#define DE_STATE2_DE_MEM_FIFO                            1:1
+#define DE_STATE2_DE_MEM_FIFO_NOTEMPTY                   0
+#define DE_STATE2_DE_MEM_FIFO_EMPTY                      1
+#define DE_STATE2_DE_RESERVED                            0:0
+
+
+
+#define SYSTEM_CTRL                                   0x000000
+#define SYSTEM_CTRL_DPMS                              31:30
+#define SYSTEM_CTRL_DPMS_VPHP                         0
+#define SYSTEM_CTRL_DPMS_VPHN                         1
+#define SYSTEM_CTRL_DPMS_VNHP                         2
+#define SYSTEM_CTRL_DPMS_VNHN                         3
+#define SYSTEM_CTRL_PCI_BURST                         29:29
+#define SYSTEM_CTRL_PCI_BURST_OFF                     0
+#define SYSTEM_CTRL_PCI_BURST_ON                      1
+#define SYSTEM_CTRL_PCI_MASTER                        25:25
+#define SYSTEM_CTRL_PCI_MASTER_OFF                    0
+#define SYSTEM_CTRL_PCI_MASTER_ON                     1
+#define SYSTEM_CTRL_LATENCY_TIMER                     24:24
+#define SYSTEM_CTRL_LATENCY_TIMER_ON                  0
+#define SYSTEM_CTRL_LATENCY_TIMER_OFF                 1
+#define SYSTEM_CTRL_DE_FIFO                           23:23
+#define SYSTEM_CTRL_DE_FIFO_NOTEMPTY                  0
+#define SYSTEM_CTRL_DE_FIFO_EMPTY                     1
+#define SYSTEM_CTRL_DE_STATUS                         22:22
+#define SYSTEM_CTRL_DE_STATUS_IDLE                    0
+#define SYSTEM_CTRL_DE_STATUS_BUSY                    1
+#define SYSTEM_CTRL_DE_MEM_FIFO                       21:21
+#define SYSTEM_CTRL_DE_MEM_FIFO_NOTEMPTY              0
+#define SYSTEM_CTRL_DE_MEM_FIFO_EMPTY                 1
+#define SYSTEM_CTRL_CSC_STATUS                        20:20
+#define SYSTEM_CTRL_CSC_STATUS_IDLE                   0
+#define SYSTEM_CTRL_CSC_STATUS_BUSY                   1
+#define SYSTEM_CTRL_CRT_VSYNC                         19:19
+#define SYSTEM_CTRL_CRT_VSYNC_INACTIVE                0
+#define SYSTEM_CTRL_CRT_VSYNC_ACTIVE                  1
+#define SYSTEM_CTRL_PANEL_VSYNC                       18:18
+#define SYSTEM_CTRL_PANEL_VSYNC_INACTIVE              0
+#define SYSTEM_CTRL_PANEL_VSYNC_ACTIVE                1
+#define SYSTEM_CTRL_CURRENT_BUFFER                    17:17
+#define SYSTEM_CTRL_CURRENT_BUFFER_NORMAL             0
+#define SYSTEM_CTRL_CURRENT_BUFFER_FLIP_PENDING       1
+#define SYSTEM_CTRL_DMA_STATUS                        16:16
+#define SYSTEM_CTRL_DMA_STATUS_IDLE                   0
+#define SYSTEM_CTRL_DMA_STATUS_BUSY                   1
+#define SYSTEM_CTRL_PCI_BURST_READ                    15:15
+#define SYSTEM_CTRL_PCI_BURST_READ_OFF                0
+#define SYSTEM_CTRL_PCI_BURST_READ_ON                 1
+#define SYSTEM_CTRL_DE_ABORT                          13:13
+#define SYSTEM_CTRL_DE_ABORT_OFF                      0
+#define SYSTEM_CTRL_DE_ABORT_ON                       1
+#define SYSTEM_CTRL_PCI_SUBSYS_ID_LOCK                11:11
+#define SYSTEM_CTRL_PCI_SUBSYS_ID_LOCK_OFF            0
+#define SYSTEM_CTRL_PCI_SUBSYS_ID_LOCK_ON             1
+#define SYSTEM_CTRL_PCI_RETRY                         7:7
+#define SYSTEM_CTRL_PCI_RETRY_ON                      0
+#define SYSTEM_CTRL_PCI_RETRY_OFF                     1
+#define SYSTEM_CTRL_PCI_SLAVE_BURST_READ_SIZE         5:4
+#define SYSTEM_CTRL_PCI_SLAVE_BURST_READ_SIZE_1       0
+#define SYSTEM_CTRL_PCI_SLAVE_BURST_READ_SIZE_2       1
+#define SYSTEM_CTRL_PCI_SLAVE_BURST_READ_SIZE_4       2
+#define SYSTEM_CTRL_PCI_SLAVE_BURST_READ_SIZE_8       3
+#define SYSTEM_CTRL_CRT_TRISTATE                      3:3
+#define SYSTEM_CTRL_CRT_TRISTATE_OFF                  0
+#define SYSTEM_CTRL_CRT_TRISTATE_ON                   1
+#define SYSTEM_CTRL_PCIMEM_TRISTATE                   2:2
+#define SYSTEM_CTRL_PCIMEM_TRISTATE_OFF               0
+#define SYSTEM_CTRL_PCIMEM_TRISTATE_ON                1
+#define SYSTEM_CTRL_LOCALMEM_TRISTATE                 1:1
+#define SYSTEM_CTRL_LOCALMEM_TRISTATE_OFF             0
+#define SYSTEM_CTRL_LOCALMEM_TRISTATE_ON              1
+#define SYSTEM_CTRL_PANEL_TRISTATE                    0:0
+#define SYSTEM_CTRL_PANEL_TRISTATE_OFF                0
+#define SYSTEM_CTRL_PANEL_TRISTATE_ON                 1
+
+#define MISC_CTRL                                     0x000004
+#define MISC_CTRL_DRAM_RERESH_COUNT                   27:27
+#define MISC_CTRL_DRAM_RERESH_COUNT_1ROW              0
+#define MISC_CTRL_DRAM_RERESH_COUNT_3ROW              1
+#define MISC_CTRL_DRAM_REFRESH_TIME                   26:25
+#define MISC_CTRL_DRAM_REFRESH_TIME_8                 0
+#define MISC_CTRL_DRAM_REFRESH_TIME_16                1
+#define MISC_CTRL_DRAM_REFRESH_TIME_32                2
+#define MISC_CTRL_DRAM_REFRESH_TIME_64                3
+#define MISC_CTRL_INT_OUTPUT                          24:24
+#define MISC_CTRL_INT_OUTPUT_NORMAL                   0
+#define MISC_CTRL_INT_OUTPUT_INVERT                   1
+#define MISC_CTRL_PLL_CLK_COUNT                       23:23
+#define MISC_CTRL_PLL_CLK_COUNT_OFF                   0
+#define MISC_CTRL_PLL_CLK_COUNT_ON                    1
+#define MISC_CTRL_DAC_POWER                           20:20
+#define MISC_CTRL_DAC_POWER_ON                        0
+#define MISC_CTRL_DAC_POWER_OFF                       1
+#define MISC_CTRL_CLK_SELECT                          16:16
+#define MISC_CTRL_CLK_SELECT_OSC                      0
+#define MISC_CTRL_CLK_SELECT_TESTCLK                  1
+#define MISC_CTRL_DRAM_COLUMN_SIZE                    15:14
+#define MISC_CTRL_DRAM_COLUMN_SIZE_256                0
+#define MISC_CTRL_DRAM_COLUMN_SIZE_512                1
+#define MISC_CTRL_DRAM_COLUMN_SIZE_1024               2
+#define MISC_CTRL_LOCALMEM_SIZE                       13:12
+#define MISC_CTRL_LOCALMEM_SIZE_8M                    3
+#define MISC_CTRL_LOCALMEM_SIZE_16M                   0
+#define MISC_CTRL_LOCALMEM_SIZE_32M                   1
+#define MISC_CTRL_LOCALMEM_SIZE_64M                   2
+#define MISC_CTRL_DRAM_TWTR                           11:11
+#define MISC_CTRL_DRAM_TWTR_2CLK                      0
+#define MISC_CTRL_DRAM_TWTR_1CLK                      1
+#define MISC_CTRL_DRAM_TWR                            10:10
+#define MISC_CTRL_DRAM_TWR_3CLK                       0
+#define MISC_CTRL_DRAM_TWR_2CLK                       1
+#define MISC_CTRL_DRAM_TRP                            9:9
+#define MISC_CTRL_DRAM_TRP_3CLK                       0
+#define MISC_CTRL_DRAM_TRP_4CLK                       1
+#define MISC_CTRL_DRAM_TRFC                           8:8
+#define MISC_CTRL_DRAM_TRFC_12CLK                     0
+#define MISC_CTRL_DRAM_TRFC_14CLK                     1
+#define MISC_CTRL_DRAM_TRAS                           7:7
+#define MISC_CTRL_DRAM_TRAS_7CLK                      0
+#define MISC_CTRL_DRAM_TRAS_8CLK                      1
+#define MISC_CTRL_LOCALMEM_RESET                      6:6
+#define MISC_CTRL_LOCALMEM_RESET_RESET                0
+#define MISC_CTRL_LOCALMEM_RESET_NORMAL               1
+#define MISC_CTRL_LOCALMEM_STATE                      5:5
+#define MISC_CTRL_LOCALMEM_STATE_ACTIVE               0
+#define MISC_CTRL_LOCALMEM_STATE_INACTIVE             1
+#define MISC_CTRL_CPU_CAS_LATENCY                     4:4
+#define MISC_CTRL_CPU_CAS_LATENCY_2CLK                0
+#define MISC_CTRL_CPU_CAS_LATENCY_3CLK                1
+#define MISC_CTRL_DLL                                 3:3
+#define MISC_CTRL_DLL_ON                              0
+#define MISC_CTRL_DLL_OFF                             1
+#define MISC_CTRL_DRAM_OUTPUT                         2:2
+#define MISC_CTRL_DRAM_OUTPUT_LOW                     0
+#define MISC_CTRL_DRAM_OUTPUT_HIGH                    1
+#define MISC_CTRL_LOCALMEM_BUS_SIZE                   1:1
+#define MISC_CTRL_LOCALMEM_BUS_SIZE_32                0
+#define MISC_CTRL_LOCALMEM_BUS_SIZE_64                1
+#define MISC_CTRL_EMBEDDED_LOCALMEM                   0:0
+#define MISC_CTRL_EMBEDDED_LOCALMEM_ON                0
+#define MISC_CTRL_EMBEDDED_LOCALMEM_OFF               1
+
+#define GPIO_MUX                                      0x000008
+#define GPIO_MUX_31                                   31:31
+#define GPIO_MUX_31_GPIO                              0
+#define GPIO_MUX_31_I2C                               1
+#define GPIO_MUX_30                                   30:30
+#define GPIO_MUX_30_GPIO                              0
+#define GPIO_MUX_30_I2C                               1
+#define GPIO_MUX_29                                   29:29
+#define GPIO_MUX_29_GPIO                              0
+#define GPIO_MUX_29_SSP1                              1
+#define GPIO_MUX_28                                   28:28
+#define GPIO_MUX_28_GPIO                              0
+#define GPIO_MUX_28_SSP1                              1
+#define GPIO_MUX_27                                   27:27
+#define GPIO_MUX_27_GPIO                              0
+#define GPIO_MUX_27_SSP1                              1
+#define GPIO_MUX_26                                   26:26
+#define GPIO_MUX_26_GPIO                              0
+#define GPIO_MUX_26_SSP1                              1
+#define GPIO_MUX_25                                   25:25
+#define GPIO_MUX_25_GPIO                              0
+#define GPIO_MUX_25_SSP1                              1
+#define GPIO_MUX_24                                   24:24
+#define GPIO_MUX_24_GPIO                              0
+#define GPIO_MUX_24_SSP0                              1
+#define GPIO_MUX_23                                   23:23
+#define GPIO_MUX_23_GPIO                              0
+#define GPIO_MUX_23_SSP0                              1
+#define GPIO_MUX_22                                   22:22
+#define GPIO_MUX_22_GPIO                              0
+#define GPIO_MUX_22_SSP0                              1
+#define GPIO_MUX_21                                   21:21
+#define GPIO_MUX_21_GPIO                              0
+#define GPIO_MUX_21_SSP0                              1
+#define GPIO_MUX_20                                   20:20
+#define GPIO_MUX_20_GPIO                              0
+#define GPIO_MUX_20_SSP0                              1
+#define GPIO_MUX_19                                   19:19
+#define GPIO_MUX_19_GPIO                              0
+#define GPIO_MUX_19_PWM                               1
+#define GPIO_MUX_18                                   18:18
+#define GPIO_MUX_18_GPIO                              0
+#define GPIO_MUX_18_PWM                               1
+#define GPIO_MUX_17                                   17:17
+#define GPIO_MUX_17_GPIO                              0
+#define GPIO_MUX_17_PWM                               1
+#define GPIO_MUX_16                                   16:16
+#define GPIO_MUX_16_GPIO_ZVPORT                       0
+#define GPIO_MUX_16_TEST_DATA                         1
+#define GPIO_MUX_15                                   15:15
+#define GPIO_MUX_15_GPIO_ZVPORT                       0
+#define GPIO_MUX_15_TEST_DATA                         1
+#define GPIO_MUX_14                                   14:14
+#define GPIO_MUX_14_GPIO_ZVPORT                       0
+#define GPIO_MUX_14_TEST_DATA                         1
+#define GPIO_MUX_13                                   13:13
+#define GPIO_MUX_13_GPIO_ZVPORT                       0
+#define GPIO_MUX_13_TEST_DATA                         1
+#define GPIO_MUX_12                                   12:12
+#define GPIO_MUX_12_GPIO_ZVPORT                       0
+#define GPIO_MUX_12_TEST_DATA                         1
+#define GPIO_MUX_11                                   11:11
+#define GPIO_MUX_11_GPIO_ZVPORT                       0
+#define GPIO_MUX_11_TEST_DATA                         1
+#define GPIO_MUX_10                                   10:10
+#define GPIO_MUX_10_GPIO_ZVPORT                       0
+#define GPIO_MUX_10_TEST_DATA                         1
+#define GPIO_MUX_9                                    9:9
+#define GPIO_MUX_9_GPIO_ZVPORT                        0
+#define GPIO_MUX_9_TEST_DATA                          1
+#define GPIO_MUX_8                                    8:8
+#define GPIO_MUX_8_GPIO_ZVPORT                        0
+#define GPIO_MUX_8_TEST_DATA                          1
+#define GPIO_MUX_7                                    7:7
+#define GPIO_MUX_7_GPIO_ZVPORT                        0
+#define GPIO_MUX_7_TEST_DATA                          1
+#define GPIO_MUX_6                                    6:6
+#define GPIO_MUX_6_GPIO_ZVPORT                        0
+#define GPIO_MUX_6_TEST_DATA                          1
+#define GPIO_MUX_5                                    5:5
+#define GPIO_MUX_5_GPIO_ZVPORT                        0
+#define GPIO_MUX_5_TEST_DATA                          1
+#define GPIO_MUX_4                                    4:4
+#define GPIO_MUX_4_GPIO_ZVPORT                        0
+#define GPIO_MUX_4_TEST_DATA                          1
+#define GPIO_MUX_3                                    3:3
+#define GPIO_MUX_3_GPIO_ZVPORT                        0
+#define GPIO_MUX_3_TEST_DATA                          1
+#define GPIO_MUX_2                                    2:2
+#define GPIO_MUX_2_GPIO_ZVPORT                        0
+#define GPIO_MUX_2_TEST_DATA                          1
+#define GPIO_MUX_1                                    1:1
+#define GPIO_MUX_1_GPIO_ZVPORT                        0
+#define GPIO_MUX_1_TEST_DATA                          1
+#define GPIO_MUX_0                                    0:0
+#define GPIO_MUX_0_GPIO_ZVPORT                        0
+#define GPIO_MUX_0_TEST_DATA                          1
+
+#define LOCALMEM_ARBITRATION                          0x00000C
+#define LOCALMEM_ARBITRATION_ROTATE                   28:28
+#define LOCALMEM_ARBITRATION_ROTATE_OFF               0
+#define LOCALMEM_ARBITRATION_ROTATE_ON                1
+#define LOCALMEM_ARBITRATION_VGA                      26:24
+#define LOCALMEM_ARBITRATION_VGA_OFF                  0
+#define LOCALMEM_ARBITRATION_VGA_PRIORITY_1           1
+#define LOCALMEM_ARBITRATION_VGA_PRIORITY_2           2
+#define LOCALMEM_ARBITRATION_VGA_PRIORITY_3           3
+#define LOCALMEM_ARBITRATION_VGA_PRIORITY_4           4
+#define LOCALMEM_ARBITRATION_VGA_PRIORITY_5           5
+#define LOCALMEM_ARBITRATION_VGA_PRIORITY_6           6
+#define LOCALMEM_ARBITRATION_VGA_PRIORITY_7           7
+#define LOCALMEM_ARBITRATION_DMA                      22:20
+#define LOCALMEM_ARBITRATION_DMA_OFF                  0
+#define LOCALMEM_ARBITRATION_DMA_PRIORITY_1           1
+#define LOCALMEM_ARBITRATION_DMA_PRIORITY_2           2
+#define LOCALMEM_ARBITRATION_DMA_PRIORITY_3           3
+#define LOCALMEM_ARBITRATION_DMA_PRIORITY_4           4
+#define LOCALMEM_ARBITRATION_DMA_PRIORITY_5           5
+#define LOCALMEM_ARBITRATION_DMA_PRIORITY_6           6
+#define LOCALMEM_ARBITRATION_DMA_PRIORITY_7           7
+#define LOCALMEM_ARBITRATION_ZVPORT1                  18:16
+#define LOCALMEM_ARBITRATION_ZVPORT1_OFF              0
+#define LOCALMEM_ARBITRATION_ZVPORT1_PRIORITY_1       1
+#define LOCALMEM_ARBITRATION_ZVPORT1_PRIORITY_2       2
+#define LOCALMEM_ARBITRATION_ZVPORT1_PRIORITY_3       3
+#define LOCALMEM_ARBITRATION_ZVPORT1_PRIORITY_4       4
+#define LOCALMEM_ARBITRATION_ZVPORT1_PRIORITY_5       5
+#define LOCALMEM_ARBITRATION_ZVPORT1_PRIORITY_6       6
+#define LOCALMEM_ARBITRATION_ZVPORT1_PRIORITY_7       7
+#define LOCALMEM_ARBITRATION_ZVPORT0                  14:12
+#define LOCALMEM_ARBITRATION_ZVPORT0_OFF              0
+#define LOCALMEM_ARBITRATION_ZVPORT0_PRIORITY_1       1
+#define LOCALMEM_ARBITRATION_ZVPORT0_PRIORITY_2       2
+#define LOCALMEM_ARBITRATION_ZVPORT0_PRIORITY_3       3
+#define LOCALMEM_ARBITRATION_ZVPORT0_PRIORITY_4       4
+#define LOCALMEM_ARBITRATION_ZVPORT0_PRIORITY_5       5
+#define LOCALMEM_ARBITRATION_ZVPORT0_PRIORITY_6       6
+#define LOCALMEM_ARBITRATION_ZVPORT0_PRIORITY_7       7
+#define LOCALMEM_ARBITRATION_VIDEO                    10:8
+#define LOCALMEM_ARBITRATION_VIDEO_OFF                0
+#define LOCALMEM_ARBITRATION_VIDEO_PRIORITY_1         1
+#define LOCALMEM_ARBITRATION_VIDEO_PRIORITY_2         2
+#define LOCALMEM_ARBITRATION_VIDEO_PRIORITY_3         3
+#define LOCALMEM_ARBITRATION_VIDEO_PRIORITY_4         4
+#define LOCALMEM_ARBITRATION_VIDEO_PRIORITY_5         5
+#define LOCALMEM_ARBITRATION_VIDEO_PRIORITY_6         6
+#define LOCALMEM_ARBITRATION_VIDEO_PRIORITY_7         7
+#define LOCALMEM_ARBITRATION_PANEL                    6:4
+#define LOCALMEM_ARBITRATION_PANEL_OFF                0
+#define LOCALMEM_ARBITRATION_PANEL_PRIORITY_1         1
+#define LOCALMEM_ARBITRATION_PANEL_PRIORITY_2         2
+#define LOCALMEM_ARBITRATION_PANEL_PRIORITY_3         3
+#define LOCALMEM_ARBITRATION_PANEL_PRIORITY_4         4
+#define LOCALMEM_ARBITRATION_PANEL_PRIORITY_5         5
+#define LOCALMEM_ARBITRATION_PANEL_PRIORITY_6         6
+#define LOCALMEM_ARBITRATION_PANEL_PRIORITY_7         7
+#define LOCALMEM_ARBITRATION_CRT                      2:0
+#define LOCALMEM_ARBITRATION_CRT_OFF                  0
+#define LOCALMEM_ARBITRATION_CRT_PRIORITY_1           1
+#define LOCALMEM_ARBITRATION_CRT_PRIORITY_2           2
+#define LOCALMEM_ARBITRATION_CRT_PRIORITY_3           3
+#define LOCALMEM_ARBITRATION_CRT_PRIORITY_4           4
+#define LOCALMEM_ARBITRATION_CRT_PRIORITY_5           5
+#define LOCALMEM_ARBITRATION_CRT_PRIORITY_6           6
+#define LOCALMEM_ARBITRATION_CRT_PRIORITY_7           7
+
+#define PCIMEM_ARBITRATION                            0x000010
+#define PCIMEM_ARBITRATION_ROTATE                     28:28
+#define PCIMEM_ARBITRATION_ROTATE_OFF                 0
+#define PCIMEM_ARBITRATION_ROTATE_ON                  1
+#define PCIMEM_ARBITRATION_VGA                        26:24
+#define PCIMEM_ARBITRATION_VGA_OFF                    0
+#define PCIMEM_ARBITRATION_VGA_PRIORITY_1             1
+#define PCIMEM_ARBITRATION_VGA_PRIORITY_2             2
+#define PCIMEM_ARBITRATION_VGA_PRIORITY_3             3
+#define PCIMEM_ARBITRATION_VGA_PRIORITY_4             4
+#define PCIMEM_ARBITRATION_VGA_PRIORITY_5             5
+#define PCIMEM_ARBITRATION_VGA_PRIORITY_6             6
+#define PCIMEM_ARBITRATION_VGA_PRIORITY_7             7
+#define PCIMEM_ARBITRATION_DMA                        22:20
+#define PCIMEM_ARBITRATION_DMA_OFF                    0
+#define PCIMEM_ARBITRATION_DMA_PRIORITY_1             1
+#define PCIMEM_ARBITRATION_DMA_PRIORITY_2             2
+#define PCIMEM_ARBITRATION_DMA_PRIORITY_3             3
+#define PCIMEM_ARBITRATION_DMA_PRIORITY_4             4
+#define PCIMEM_ARBITRATION_DMA_PRIORITY_5             5
+#define PCIMEM_ARBITRATION_DMA_PRIORITY_6             6
+#define PCIMEM_ARBITRATION_DMA_PRIORITY_7             7
+#define PCIMEM_ARBITRATION_ZVPORT1                    18:16
+#define PCIMEM_ARBITRATION_ZVPORT1_OFF                0
+#define PCIMEM_ARBITRATION_ZVPORT1_PRIORITY_1         1
+#define PCIMEM_ARBITRATION_ZVPORT1_PRIORITY_2         2
+#define PCIMEM_ARBITRATION_ZVPORT1_PRIORITY_3         3
+#define PCIMEM_ARBITRATION_ZVPORT1_PRIORITY_4         4
+#define PCIMEM_ARBITRATION_ZVPORT1_PRIORITY_5         5
+#define PCIMEM_ARBITRATION_ZVPORT1_PRIORITY_6         6
+#define PCIMEM_ARBITRATION_ZVPORT1_PRIORITY_7         7
+#define PCIMEM_ARBITRATION_ZVPORT0                    14:12
+#define PCIMEM_ARBITRATION_ZVPORT0_OFF                0
+#define PCIMEM_ARBITRATION_ZVPORT0_PRIORITY_1         1
+#define PCIMEM_ARBITRATION_ZVPORT0_PRIORITY_2         2
+#define PCIMEM_ARBITRATION_ZVPORT0_PRIORITY_3         3
+#define PCIMEM_ARBITRATION_ZVPORT0_PRIORITY_4         4
+#define PCIMEM_ARBITRATION_ZVPORT0_PRIORITY_5         5
+#define PCIMEM_ARBITRATION_ZVPORT0_PRIORITY_6         6
+#define PCIMEM_ARBITRATION_ZVPORT0_PRIORITY_7         7
+#define PCIMEM_ARBITRATION_VIDEO                      10:8
+#define PCIMEM_ARBITRATION_VIDEO_OFF                  0
+#define PCIMEM_ARBITRATION_VIDEO_PRIORITY_1           1
+#define PCIMEM_ARBITRATION_VIDEO_PRIORITY_2           2
+#define PCIMEM_ARBITRATION_VIDEO_PRIORITY_3           3
+#define PCIMEM_ARBITRATION_VIDEO_PRIORITY_4           4
+#define PCIMEM_ARBITRATION_VIDEO_PRIORITY_5           5
+#define PCIMEM_ARBITRATION_VIDEO_PRIORITY_6           6
+#define PCIMEM_ARBITRATION_VIDEO_PRIORITY_7           7
+#define PCIMEM_ARBITRATION_PANEL                      6:4
+#define PCIMEM_ARBITRATION_PANEL_OFF                  0
+#define PCIMEM_ARBITRATION_PANEL_PRIORITY_1           1
+#define PCIMEM_ARBITRATION_PANEL_PRIORITY_2           2
+#define PCIMEM_ARBITRATION_PANEL_PRIORITY_3           3
+#define PCIMEM_ARBITRATION_PANEL_PRIORITY_4           4
+#define PCIMEM_ARBITRATION_PANEL_PRIORITY_5           5
+#define PCIMEM_ARBITRATION_PANEL_PRIORITY_6           6
+#define PCIMEM_ARBITRATION_PANEL_PRIORITY_7           7
+#define PCIMEM_ARBITRATION_CRT                        2:0
+#define PCIMEM_ARBITRATION_CRT_OFF                    0
+#define PCIMEM_ARBITRATION_CRT_PRIORITY_1             1
+#define PCIMEM_ARBITRATION_CRT_PRIORITY_2             2
+#define PCIMEM_ARBITRATION_CRT_PRIORITY_3             3
+#define PCIMEM_ARBITRATION_CRT_PRIORITY_4             4
+#define PCIMEM_ARBITRATION_CRT_PRIORITY_5             5
+#define PCIMEM_ARBITRATION_CRT_PRIORITY_6             6
+#define PCIMEM_ARBITRATION_CRT_PRIORITY_7             7
+
+#define RAW_INT                                       0x000020
+#define RAW_INT_ZVPORT1_VSYNC                         4:4
+#define RAW_INT_ZVPORT1_VSYNC_INACTIVE                0
+#define RAW_INT_ZVPORT1_VSYNC_ACTIVE                  1
+#define RAW_INT_ZVPORT1_VSYNC_CLEAR                   1
+#define RAW_INT_ZVPORT0_VSYNC                         3:3
+#define RAW_INT_ZVPORT0_VSYNC_INACTIVE                0
+#define RAW_INT_ZVPORT0_VSYNC_ACTIVE                  1
+#define RAW_INT_ZVPORT0_VSYNC_CLEAR                   1
+#define RAW_INT_CRT_VSYNC                             2:2
+#define RAW_INT_CRT_VSYNC_INACTIVE                    0
+#define RAW_INT_CRT_VSYNC_ACTIVE                      1
+#define RAW_INT_CRT_VSYNC_CLEAR                       1
+#define RAW_INT_PANEL_VSYNC                           1:1
+#define RAW_INT_PANEL_VSYNC_INACTIVE                  0
+#define RAW_INT_PANEL_VSYNC_ACTIVE                    1
+#define RAW_INT_PANEL_VSYNC_CLEAR                     1
+#define RAW_INT_VGA_VSYNC                             0:0
+#define RAW_INT_VGA_VSYNC_INACTIVE                    0
+#define RAW_INT_VGA_VSYNC_ACTIVE                      1
+#define RAW_INT_VGA_VSYNC_CLEAR                       1
+
+#define INT_STATUS                                    0x000024
+#define INT_STATUS_GPIO31                             31:31
+#define INT_STATUS_GPIO31_INACTIVE                    0
+#define INT_STATUS_GPIO31_ACTIVE                      1
+#define INT_STATUS_GPIO30                             30:30
+#define INT_STATUS_GPIO30_INACTIVE                    0
+#define INT_STATUS_GPIO30_ACTIVE                      1
+#define INT_STATUS_GPIO29                             29:29
+#define INT_STATUS_GPIO29_INACTIVE                    0
+#define INT_STATUS_GPIO29_ACTIVE                      1
+#define INT_STATUS_GPIO28                             28:28
+#define INT_STATUS_GPIO28_INACTIVE                    0
+#define INT_STATUS_GPIO28_ACTIVE                      1
+#define INT_STATUS_GPIO27                             27:27
+#define INT_STATUS_GPIO27_INACTIVE                    0
+#define INT_STATUS_GPIO27_ACTIVE                      1
+#define INT_STATUS_GPIO26                             26:26
+#define INT_STATUS_GPIO26_INACTIVE                    0
+#define INT_STATUS_GPIO26_ACTIVE                      1
+#define INT_STATUS_GPIO25                             25:25
+#define INT_STATUS_GPIO25_INACTIVE                    0
+#define INT_STATUS_GPIO25_ACTIVE                      1
+#define INT_STATUS_I2C                                12:12
+#define INT_STATUS_I2C_INACTIVE                       0
+#define INT_STATUS_I2C_ACTIVE                         1
+#define INT_STATUS_PWM                                11:11
+#define INT_STATUS_PWM_INACTIVE                       0
+#define INT_STATUS_PWM_ACTIVE                         1
+#define INT_STATUS_DMA1                               10:10
+#define INT_STATUS_DMA1_INACTIVE                      0
+#define INT_STATUS_DMA1_ACTIVE                        1
+#define INT_STATUS_DMA0                               9:9
+#define INT_STATUS_DMA0_INACTIVE                      0
+#define INT_STATUS_DMA0_ACTIVE                        1
+#define INT_STATUS_PCI                                8:8
+#define INT_STATUS_PCI_INACTIVE                       0
+#define INT_STATUS_PCI_ACTIVE                         1
+#define INT_STATUS_SSP1                               7:7
+#define INT_STATUS_SSP1_INACTIVE                      0
+#define INT_STATUS_SSP1_ACTIVE                        1
+#define INT_STATUS_SSP0                               6:6
+#define INT_STATUS_SSP0_INACTIVE                      0
+#define INT_STATUS_SSP0_ACTIVE                        1
+#define INT_STATUS_DE                                 5:5
+#define INT_STATUS_DE_INACTIVE                        0
+#define INT_STATUS_DE_ACTIVE                          1
+#define INT_STATUS_ZVPORT1_VSYNC                      4:4
+#define INT_STATUS_ZVPORT1_VSYNC_INACTIVE             0
+#define INT_STATUS_ZVPORT1_VSYNC_ACTIVE               1
+#define INT_STATUS_ZVPORT0_VSYNC                      3:3
+#define INT_STATUS_ZVPORT0_VSYNC_INACTIVE             0
+#define INT_STATUS_ZVPORT0_VSYNC_ACTIVE               1
+#define INT_STATUS_CRT_VSYNC                          2:2
+#define INT_STATUS_CRT_VSYNC_INACTIVE                 0
+#define INT_STATUS_CRT_VSYNC_ACTIVE                   1
+#define INT_STATUS_PANEL_VSYNC                        1:1
+#define INT_STATUS_PANEL_VSYNC_INACTIVE               0
+#define INT_STATUS_PANEL_VSYNC_ACTIVE                 1
+#define INT_STATUS_VGA_VSYNC                          0:0
+#define INT_STATUS_VGA_VSYNC_INACTIVE                 0
+#define INT_STATUS_VGA_VSYNC_ACTIVE                   1
+
+#define INT_MASK                                      0x000028
+#define INT_MASK_GPIO31                               31:31
+#define INT_MASK_GPIO31_DISABLE                       0
+#define INT_MASK_GPIO31_ENABLE                        1
+#define INT_MASK_GPIO30                               30:30
+#define INT_MASK_GPIO30_DISABLE                       0
+#define INT_MASK_GPIO30_ENABLE                        1
+#define INT_MASK_GPIO29                               29:29
+#define INT_MASK_GPIO29_DISABLE                       0
+#define INT_MASK_GPIO29_ENABLE                        1
+#define INT_MASK_GPIO28                               28:28
+#define INT_MASK_GPIO28_DISABLE                       0
+#define INT_MASK_GPIO28_ENABLE                        1
+#define INT_MASK_GPIO27                               27:27
+#define INT_MASK_GPIO27_DISABLE                       0
+#define INT_MASK_GPIO27_ENABLE                        1
+#define INT_MASK_GPIO26                               26:26
+#define INT_MASK_GPIO26_DISABLE                       0
+#define INT_MASK_GPIO26_ENABLE                        1
+#define INT_MASK_GPIO25                               25:25
+#define INT_MASK_GPIO25_DISABLE                       0
+#define INT_MASK_GPIO25_ENABLE                        1
+#define INT_MASK_I2C                                  12:12
+#define INT_MASK_I2C_DISABLE                          0
+#define INT_MASK_I2C_ENABLE                           1
+#define INT_MASK_PWM                                  11:11
+#define INT_MASK_PWM_DISABLE                          0
+#define INT_MASK_PWM_ENABLE                           1
+#define INT_MASK_DMA1                                 10:10
+#define INT_MASK_DMA1_DISABLE                         0
+#define INT_MASK_DMA1_ENABLE                          1
+#define INT_MASK_DMA                                  9:9
+#define INT_MASK_DMA_DISABLE                          0
+#define INT_MASK_DMA_ENABLE                           1
+#define INT_MASK_PCI                                  8:8
+#define INT_MASK_PCI_DISABLE                          0
+#define INT_MASK_PCI_ENABLE                           1
+#define INT_MASK_SSP1                                 7:7
+#define INT_MASK_SSP1_DISABLE                         0
+#define INT_MASK_SSP1_ENABLE                          1
+#define INT_MASK_SSP0                                 6:6
+#define INT_MASK_SSP0_DISABLE                         0
+#define INT_MASK_SSP0_ENABLE                          1
+#define INT_MASK_DE                                   5:5
+#define INT_MASK_DE_DISABLE                           0
+#define INT_MASK_DE_ENABLE                            1
+#define INT_MASK_ZVPORT1_VSYNC                        4:4
+#define INT_MASK_ZVPORT1_VSYNC_DISABLE                0
+#define INT_MASK_ZVPORT1_VSYNC_ENABLE                 1
+#define INT_MASK_ZVPORT0_VSYNC                        3:3
+#define INT_MASK_ZVPORT0_VSYNC_DISABLE                0
+#define INT_MASK_ZVPORT0_VSYNC_ENABLE                 1
+#define INT_MASK_CRT_VSYNC                            2:2
+#define INT_MASK_CRT_VSYNC_DISABLE                    0
+#define INT_MASK_CRT_VSYNC_ENABLE                     1
+#define INT_MASK_PANEL_VSYNC                          1:1
+#define INT_MASK_PANEL_VSYNC_DISABLE                  0
+#define INT_MASK_PANEL_VSYNC_ENABLE                   1
+#define INT_MASK_VGA_VSYNC                            0:0
+#define INT_MASK_VGA_VSYNC_DISABLE                    0
+#define INT_MASK_VGA_VSYNC_ENABLE                     1
+
+#define CURRENT_GATE                                  0x000040
+#define CURRENT_GATE_MCLK                             15:14
+#ifdef VALIDATION_CHIP
+    #define CURRENT_GATE_MCLK_112MHZ                      0
+    #define CURRENT_GATE_MCLK_84MHZ                       1
+    #define CURRENT_GATE_MCLK_56MHZ                       2
+    #define CURRENT_GATE_MCLK_42MHZ                       3
+#else
+    #define CURRENT_GATE_MCLK_DIV_3                       0
+    #define CURRENT_GATE_MCLK_DIV_4                       1
+    #define CURRENT_GATE_MCLK_DIV_6                       2
+    #define CURRENT_GATE_MCLK_DIV_8                       3
+#endif
+#define CURRENT_GATE_M2XCLK                           13:12
+#ifdef VALIDATION_CHIP
+    #define CURRENT_GATE_M2XCLK_336MHZ                    0
+    #define CURRENT_GATE_M2XCLK_168MHZ                    1
+    #define CURRENT_GATE_M2XCLK_112MHZ                    2
+    #define CURRENT_GATE_M2XCLK_84MHZ                     3
+#else
+    #define CURRENT_GATE_M2XCLK_DIV_1                     0
+    #define CURRENT_GATE_M2XCLK_DIV_2                     1
+    #define CURRENT_GATE_M2XCLK_DIV_3                     2
+    #define CURRENT_GATE_M2XCLK_DIV_4                     3
+#endif
+#define CURRENT_GATE_VGA                              10:10
+#define CURRENT_GATE_VGA_OFF                          0
+#define CURRENT_GATE_VGA_ON                           1
+#define CURRENT_GATE_PWM                              9:9
+#define CURRENT_GATE_PWM_OFF                          0
+#define CURRENT_GATE_PWM_ON                           1
+#define CURRENT_GATE_I2C                              8:8
+#define CURRENT_GATE_I2C_OFF                          0
+#define CURRENT_GATE_I2C_ON                           1
+#define CURRENT_GATE_SSP                              7:7
+#define CURRENT_GATE_SSP_OFF                          0
+#define CURRENT_GATE_SSP_ON                           1
+#define CURRENT_GATE_GPIO                             6:6
+#define CURRENT_GATE_GPIO_OFF                         0
+#define CURRENT_GATE_GPIO_ON                          1
+#define CURRENT_GATE_ZVPORT                           5:5
+#define CURRENT_GATE_ZVPORT_OFF                       0
+#define CURRENT_GATE_ZVPORT_ON                        1
+#define CURRENT_GATE_CSC                              4:4
+#define CURRENT_GATE_CSC_OFF                          0
+#define CURRENT_GATE_CSC_ON                           1
+#define CURRENT_GATE_DE                               3:3
+#define CURRENT_GATE_DE_OFF                           0
+#define CURRENT_GATE_DE_ON                            1
+#define CURRENT_GATE_DISPLAY                          2:2
+#define CURRENT_GATE_DISPLAY_OFF                      0
+#define CURRENT_GATE_DISPLAY_ON                       1
+#define CURRENT_GATE_LOCALMEM                         1:1
+#define CURRENT_GATE_LOCALMEM_OFF                     0
+#define CURRENT_GATE_LOCALMEM_ON                      1
+#define CURRENT_GATE_DMA                              0:0
+#define CURRENT_GATE_DMA_OFF                          0
+#define CURRENT_GATE_DMA_ON                           1
+
+#define MODE0_GATE                                    0x000044
+#define MODE0_GATE_MCLK                               15:14
+#define MODE0_GATE_MCLK_112MHZ                        0
+#define MODE0_GATE_MCLK_84MHZ                         1
+#define MODE0_GATE_MCLK_56MHZ                         2
+#define MODE0_GATE_MCLK_42MHZ                         3
+#define MODE0_GATE_M2XCLK                             13:12
+#define MODE0_GATE_M2XCLK_336MHZ                      0
+#define MODE0_GATE_M2XCLK_168MHZ                      1
+#define MODE0_GATE_M2XCLK_112MHZ                      2
+#define MODE0_GATE_M2XCLK_84MHZ                       3
+#define MODE0_GATE_VGA                                10:10
+#define MODE0_GATE_VGA_OFF                            0
+#define MODE0_GATE_VGA_ON                             1
+#define MODE0_GATE_PWM                                9:9
+#define MODE0_GATE_PWM_OFF                            0
+#define MODE0_GATE_PWM_ON                             1
+#define MODE0_GATE_I2C                                8:8
+#define MODE0_GATE_I2C_OFF                            0
+#define MODE0_GATE_I2C_ON                             1
+#define MODE0_GATE_SSP                                7:7
+#define MODE0_GATE_SSP_OFF                            0
+#define MODE0_GATE_SSP_ON                             1
+#define MODE0_GATE_GPIO                               6:6
+#define MODE0_GATE_GPIO_OFF                           0
+#define MODE0_GATE_GPIO_ON                            1
+#define MODE0_GATE_ZVPORT                             5:5
+#define MODE0_GATE_ZVPORT_OFF                         0
+#define MODE0_GATE_ZVPORT_ON                          1
+#define MODE0_GATE_CSC                                4:4
+#define MODE0_GATE_CSC_OFF                            0
+#define MODE0_GATE_CSC_ON                             1
+#define MODE0_GATE_DE                                 3:3
+#define MODE0_GATE_DE_OFF                             0
+#define MODE0_GATE_DE_ON                              1
+#define MODE0_GATE_DISPLAY                            2:2
+#define MODE0_GATE_DISPLAY_OFF                        0
+#define MODE0_GATE_DISPLAY_ON                         1
+#define MODE0_GATE_LOCALMEM                           1:1
+#define MODE0_GATE_LOCALMEM_OFF                       0
+#define MODE0_GATE_LOCALMEM_ON                        1
+#define MODE0_GATE_DMA                                0:0
+#define MODE0_GATE_DMA_OFF                            0
+#define MODE0_GATE_DMA_ON                             1
+
+#define MODE1_GATE                                    0x000048
+#define MODE1_GATE_MCLK                               15:14
+#define MODE1_GATE_MCLK_112MHZ                        0
+#define MODE1_GATE_MCLK_84MHZ                         1
+#define MODE1_GATE_MCLK_56MHZ                         2
+#define MODE1_GATE_MCLK_42MHZ                         3
+#define MODE1_GATE_M2XCLK                             13:12
+#define MODE1_GATE_M2XCLK_336MHZ                      0
+#define MODE1_GATE_M2XCLK_168MHZ                      1
+#define MODE1_GATE_M2XCLK_112MHZ                      2
+#define MODE1_GATE_M2XCLK_84MHZ                       3
+#define MODE1_GATE_VGA                                10:10
+#define MODE1_GATE_VGA_OFF                            0
+#define MODE1_GATE_VGA_ON                             1
+#define MODE1_GATE_PWM                                9:9
+#define MODE1_GATE_PWM_OFF                            0
+#define MODE1_GATE_PWM_ON                             1
+#define MODE1_GATE_I2C                                8:8
+#define MODE1_GATE_I2C_OFF                            0
+#define MODE1_GATE_I2C_ON                             1
+#define MODE1_GATE_SSP                                7:7
+#define MODE1_GATE_SSP_OFF                            0
+#define MODE1_GATE_SSP_ON                             1
+#define MODE1_GATE_GPIO                               6:6
+#define MODE1_GATE_GPIO_OFF                           0
+#define MODE1_GATE_GPIO_ON                            1
+#define MODE1_GATE_ZVPORT                             5:5
+#define MODE1_GATE_ZVPORT_OFF                         0
+#define MODE1_GATE_ZVPORT_ON                          1
+#define MODE1_GATE_CSC                                4:4
+#define MODE1_GATE_CSC_OFF                            0
+#define MODE1_GATE_CSC_ON                             1
+#define MODE1_GATE_DE                                 3:3
+#define MODE1_GATE_DE_OFF                             0
+#define MODE1_GATE_DE_ON                              1
+#define MODE1_GATE_DISPLAY                            2:2
+#define MODE1_GATE_DISPLAY_OFF                        0
+#define MODE1_GATE_DISPLAY_ON                         1
+#define MODE1_GATE_LOCALMEM                           1:1
+#define MODE1_GATE_LOCALMEM_OFF                       0
+#define MODE1_GATE_LOCALMEM_ON                        1
+#define MODE1_GATE_DMA                                0:0
+#define MODE1_GATE_DMA_OFF                            0
+#define MODE1_GATE_DMA_ON                             1
+
+#define POWER_MODE_CTRL                               0x00004C
+#ifdef VALIDATION_CHIP
+    #define POWER_MODE_CTRL_336CLK                    4:4
+    #define POWER_MODE_CTRL_336CLK_OFF                0
+    #define POWER_MODE_CTRL_336CLK_ON                 1
+#endif
+#define POWER_MODE_CTRL_OSC_INPUT                     3:3
+#define POWER_MODE_CTRL_OSC_INPUT_OFF                 0
+#define POWER_MODE_CTRL_OSC_INPUT_ON                  1
+#define POWER_MODE_CTRL_ACPI                          2:2
+#define POWER_MODE_CTRL_ACPI_OFF                      0
+#define POWER_MODE_CTRL_ACPI_ON                       1
+#define POWER_MODE_CTRL_MODE                          1:0
+#define POWER_MODE_CTRL_MODE_MODE0                    0
+#define POWER_MODE_CTRL_MODE_MODE1                    1
+#define POWER_MODE_CTRL_MODE_SLEEP                    2
+
+#define PCI_MASTER_BASE                               0x000050
+#define PCI_MASTER_BASE_ADDRESS                       7:0
+
+#define DEVICE_ID                                     0x000054
+#define DEVICE_ID_DEVICE_ID                           31:16
+#define DEVICE_ID_REVISION_ID                         7:0
+
+#define PLL_CLK_COUNT                                 0x000058
+#define PLL_CLK_COUNT_COUNTER                         15:0
+
+#define PANEL_PLL_CTRL                                0x00005C
+#define PANEL_PLL_CTRL_BYPASS                         18:18
+#define PANEL_PLL_CTRL_BYPASS_OFF                     0
+#define PANEL_PLL_CTRL_BYPASS_ON                      1
+#define PANEL_PLL_CTRL_POWER                          17:17
+#define PANEL_PLL_CTRL_POWER_OFF                      0
+#define PANEL_PLL_CTRL_POWER_ON                       1
+#define PANEL_PLL_CTRL_INPUT                          16:16
+#define PANEL_PLL_CTRL_INPUT_OSC                      0
+#define PANEL_PLL_CTRL_INPUT_TESTCLK                  1
+#ifdef VALIDATION_CHIP
+    #define PANEL_PLL_CTRL_OD                         15:14
+#else
+    #define PANEL_PLL_CTRL_POD                        15:14
+    #define PANEL_PLL_CTRL_OD                         13:12
+#endif
+#define PANEL_PLL_CTRL_N                              11:8
+#define PANEL_PLL_CTRL_M                              7:0
+
+#define CRT_PLL_CTRL                                  0x000060
+#define CRT_PLL_CTRL_BYPASS                           18:18
+#define CRT_PLL_CTRL_BYPASS_OFF                       0
+#define CRT_PLL_CTRL_BYPASS_ON                        1
+#define CRT_PLL_CTRL_POWER                            17:17
+#define CRT_PLL_CTRL_POWER_OFF                        0
+#define CRT_PLL_CTRL_POWER_ON                         1
+#define CRT_PLL_CTRL_INPUT                            16:16
+#define CRT_PLL_CTRL_INPUT_OSC                        0
+#define CRT_PLL_CTRL_INPUT_TESTCLK                    1
+#ifdef VALIDATION_CHIP
+    #define CRT_PLL_CTRL_OD                           15:14
+#else
+    #define CRT_PLL_CTRL_POD                          15:14
+    #define CRT_PLL_CTRL_OD                           13:12
+#endif
+#define CRT_PLL_CTRL_N                                11:8
+#define CRT_PLL_CTRL_M                                7:0
+
+#define VGA_PLL0_CTRL                                 0x000064
+#define VGA_PLL0_CTRL_BYPASS                          18:18
+#define VGA_PLL0_CTRL_BYPASS_OFF                      0
+#define VGA_PLL0_CTRL_BYPASS_ON                       1
+#define VGA_PLL0_CTRL_POWER                           17:17
+#define VGA_PLL0_CTRL_POWER_OFF                       0
+#define VGA_PLL0_CTRL_POWER_ON                        1
+#define VGA_PLL0_CTRL_INPUT                           16:16
+#define VGA_PLL0_CTRL_INPUT_OSC                       0
+#define VGA_PLL0_CTRL_INPUT_TESTCLK                   1
+#ifdef VALIDATION_CHIP
+    #define VGA_PLL0_CTRL_OD                          15:14
+#else
+    #define VGA_PLL0_CTRL_POD                         15:14
+    #define VGA_PLL0_CTRL_OD                          13:12
+#endif
+#define VGA_PLL0_CTRL_N                               11:8
+#define VGA_PLL0_CTRL_M                               7:0
+
+#define VGA_PLL1_CTRL                                 0x000068
+#define VGA_PLL1_CTRL_BYPASS                          18:18
+#define VGA_PLL1_CTRL_BYPASS_OFF                      0
+#define VGA_PLL1_CTRL_BYPASS_ON                       1
+#define VGA_PLL1_CTRL_POWER                           17:17
+#define VGA_PLL1_CTRL_POWER_OFF                       0
+#define VGA_PLL1_CTRL_POWER_ON                        1
+#define VGA_PLL1_CTRL_INPUT                           16:16
+#define VGA_PLL1_CTRL_INPUT_OSC                       0
+#define VGA_PLL1_CTRL_INPUT_TESTCLK                   1
+#ifdef VALIDATION_CHIP
+    #define VGA_PLL1_CTRL_OD                          15:14
+#else
+    #define VGA_PLL1_CTRL_POD                         15:14
+    #define VGA_PLL1_CTRL_OD                          13:12
+#endif
+#define VGA_PLL1_CTRL_N                               11:8
+#define VGA_PLL1_CTRL_M                               7:0
+
+#define SCRATCH_DATA                                  0x00006c
+
+#ifndef VALIDATION_CHIP
+
+#define MXCLK_PLL_CTRL                                0x000070
+#define MXCLK_PLL_CTRL_BYPASS                         18:18
+#define MXCLK_PLL_CTRL_BYPASS_OFF                     0
+#define MXCLK_PLL_CTRL_BYPASS_ON                      1
+#define MXCLK_PLL_CTRL_POWER                          17:17
+#define MXCLK_PLL_CTRL_POWER_OFF                      0
+#define MXCLK_PLL_CTRL_POWER_ON                       1
+#define MXCLK_PLL_CTRL_INPUT                          16:16
+#define MXCLK_PLL_CTRL_INPUT_OSC                      0
+#define MXCLK_PLL_CTRL_INPUT_TESTCLK                  1
+#define MXCLK_PLL_CTRL_POD                            15:14
+#define MXCLK_PLL_CTRL_OD                             13:12
+#define MXCLK_PLL_CTRL_N                              11:8
+#define MXCLK_PLL_CTRL_M                              7:0
+
+#define VGA_CONFIGURATION                             0x000088
+#define VGA_CONFIGURATION_USER_DEFINE                 5:4
+#define VGA_CONFIGURATION_PLL                         2:2
+#define VGA_CONFIGURATION_PLL_VGA                     0
+#define VGA_CONFIGURATION_PLL_PANEL                   1
+#define VGA_CONFIGURATION_MODE                        1:1
+#define VGA_CONFIGURATION_MODE_TEXT                   0
+#define VGA_CONFIGURATION_MODE_GRAPHIC                1
+
+#endif
+
+#define GPIO_DATA                                       0x010000
+#define GPIO_DATA_31                                    31:31
+#define GPIO_DATA_30                                    30:30
+#define GPIO_DATA_29                                    29:29
+#define GPIO_DATA_28                                    28:28
+#define GPIO_DATA_27                                    27:27
+#define GPIO_DATA_26                                    26:26
+#define GPIO_DATA_25                                    25:25
+#define GPIO_DATA_24                                    24:24
+#define GPIO_DATA_23                                    23:23
+#define GPIO_DATA_22                                    22:22
+#define GPIO_DATA_21                                    21:21
+#define GPIO_DATA_20                                    20:20
+#define GPIO_DATA_19                                    19:19
+#define GPIO_DATA_18                                    18:18
+#define GPIO_DATA_17                                    17:17
+#define GPIO_DATA_16                                    16:16
+#define GPIO_DATA_15                                    15:15
+#define GPIO_DATA_14                                    14:14
+#define GPIO_DATA_13                                    13:13
+#define GPIO_DATA_12                                    12:12
+#define GPIO_DATA_11                                    11:11
+#define GPIO_DATA_10                                    10:10
+#define GPIO_DATA_9                                     9:9
+#define GPIO_DATA_8                                     8:8
+#define GPIO_DATA_7                                     7:7
+#define GPIO_DATA_6                                     6:6
+#define GPIO_DATA_5                                     5:5
+#define GPIO_DATA_4                                     4:4
+#define GPIO_DATA_3                                     3:3
+#define GPIO_DATA_2                                     2:2
+#define GPIO_DATA_1                                     1:1
+#define GPIO_DATA_0                                     0:0
+
+#define GPIO_DATA_DIRECTION                             0x010004
+#define GPIO_DATA_DIRECTION_31                          31:31
+#define GPIO_DATA_DIRECTION_31_INPUT                    0
+#define GPIO_DATA_DIRECTION_31_OUTPUT                   1
+#define GPIO_DATA_DIRECTION_30                          30:30
+#define GPIO_DATA_DIRECTION_30_INPUT                    0
+#define GPIO_DATA_DIRECTION_30_OUTPUT                   1
+#define GPIO_DATA_DIRECTION_29                          29:29
+#define GPIO_DATA_DIRECTION_29_INPUT                    0
+#define GPIO_DATA_DIRECTION_29_OUTPUT                   1
+#define GPIO_DATA_DIRECTION_28                          28:28
+#define GPIO_DATA_DIRECTION_28_INPUT                    0
+#define GPIO_DATA_DIRECTION_28_OUTPUT                   1
+#define GPIO_DATA_DIRECTION_27                          27:27
+#define GPIO_DATA_DIRECTION_27_INPUT                    0
+#define GPIO_DATA_DIRECTION_27_OUTPUT                   1
+#define GPIO_DATA_DIRECTION_26                          26:26
+#define GPIO_DATA_DIRECTION_26_INPUT                    0
+#define GPIO_DATA_DIRECTION_26_OUTPUT                   1
+#define GPIO_DATA_DIRECTION_25                          25:25
+#define GPIO_DATA_DIRECTION_25_INPUT                    0
+#define GPIO_DATA_DIRECTION_25_OUTPUT                   1
+#define GPIO_DATA_DIRECTION_24                          24:24
+#define GPIO_DATA_DIRECTION_24_INPUT                    0
+#define GPIO_DATA_DIRECTION_24_OUTPUT                   1
+#define GPIO_DATA_DIRECTION_23                          23:23
+#define GPIO_DATA_DIRECTION_23_INPUT                    0
+#define GPIO_DATA_DIRECTION_23_OUTPUT                   1
+#define GPIO_DATA_DIRECTION_22                          22:22
+#define GPIO_DATA_DIRECTION_22_INPUT                    0
+#define GPIO_DATA_DIRECTION_22_OUTPUT                   1
+#define GPIO_DATA_DIRECTION_21                          21:21
+#define GPIO_DATA_DIRECTION_21_INPUT                    0
+#define GPIO_DATA_DIRECTION_21_OUTPUT                   1
+#define GPIO_DATA_DIRECTION_20                          20:20
+#define GPIO_DATA_DIRECTION_20_INPUT                    0
+#define GPIO_DATA_DIRECTION_20_OUTPUT                   1
+#define GPIO_DATA_DIRECTION_19                          19:19
+#define GPIO_DATA_DIRECTION_19_INPUT                    0
+#define GPIO_DATA_DIRECTION_19_OUTPUT                   1
+#define GPIO_DATA_DIRECTION_18                          18:18
+#define GPIO_DATA_DIRECTION_18_INPUT                    0
+#define GPIO_DATA_DIRECTION_18_OUTPUT                   1
+#define GPIO_DATA_DIRECTION_17                          17:17
+#define GPIO_DATA_DIRECTION_17_INPUT                    0
+#define GPIO_DATA_DIRECTION_17_OUTPUT                   1
+#define GPIO_DATA_DIRECTION_16                          16:16
+#define GPIO_DATA_DIRECTION_16_INPUT                    0
+#define GPIO_DATA_DIRECTION_16_OUTPUT                   1
+#define GPIO_DATA_DIRECTION_15                          15:15
+#define GPIO_DATA_DIRECTION_15_INPUT                    0
+#define GPIO_DATA_DIRECTION_15_OUTPUT                   1
+#define GPIO_DATA_DIRECTION_14                          14:14
+#define GPIO_DATA_DIRECTION_14_INPUT                    0
+#define GPIO_DATA_DIRECTION_14_OUTPUT                   1
+#define GPIO_DATA_DIRECTION_13                          13:13
+#define GPIO_DATA_DIRECTION_13_INPUT                    0
+#define GPIO_DATA_DIRECTION_13_OUTPUT                   1
+#define GPIO_DATA_DIRECTION_12                          12:12
+#define GPIO_DATA_DIRECTION_12_INPUT                    0
+#define GPIO_DATA_DIRECTION_12_OUTPUT                   1
+#define GPIO_DATA_DIRECTION_11                          11:11
+#define GPIO_DATA_DIRECTION_11_INPUT                    0
+#define GPIO_DATA_DIRECTION_11_OUTPUT                   1
+#define GPIO_DATA_DIRECTION_10                          10:10
+#define GPIO_DATA_DIRECTION_10_INPUT                    0
+#define GPIO_DATA_DIRECTION_10_OUTPUT                   1
+#define GPIO_DATA_DIRECTION_9                           9:9
+#define GPIO_DATA_DIRECTION_9_INPUT                     0
+#define GPIO_DATA_DIRECTION_9_OUTPUT                    1
+#define GPIO_DATA_DIRECTION_8                           8:8
+#define GPIO_DATA_DIRECTION_8_INPUT                     0
+#define GPIO_DATA_DIRECTION_8_OUTPUT                    1
+#define GPIO_DATA_DIRECTION_7                           7:7
+#define GPIO_DATA_DIRECTION_7_INPUT                     0
+#define GPIO_DATA_DIRECTION_7_OUTPUT                    1
+#define GPIO_DATA_DIRECTION_6                           6:6
+#define GPIO_DATA_DIRECTION_6_INPUT                     0
+#define GPIO_DATA_DIRECTION_6_OUTPUT                    1
+#define GPIO_DATA_DIRECTION_5                           5:5
+#define GPIO_DATA_DIRECTION_5_INPUT                     0
+#define GPIO_DATA_DIRECTION_5_OUTPUT                    1
+#define GPIO_DATA_DIRECTION_4                           4:4
+#define GPIO_DATA_DIRECTION_4_INPUT                     0
+#define GPIO_DATA_DIRECTION_4_OUTPUT                    1
+#define GPIO_DATA_DIRECTION_3                           3:3
+#define GPIO_DATA_DIRECTION_3_INPUT                     0
+#define GPIO_DATA_DIRECTION_3_OUTPUT                    1
+#define GPIO_DATA_DIRECTION_2                           2:2
+#define GPIO_DATA_DIRECTION_2_INPUT                     0
+#define GPIO_DATA_DIRECTION_2_OUTPUT                    1
+#define GPIO_DATA_DIRECTION_1                           131
+#define GPIO_DATA_DIRECTION_1_INPUT                     0
+#define GPIO_DATA_DIRECTION_1_OUTPUT                    1
+#define GPIO_DATA_DIRECTION_0                           0:0
+#define GPIO_DATA_DIRECTION_0_INPUT                     0
+#define GPIO_DATA_DIRECTION_0_OUTPUT                    1
+
+#define GPIO_INTERRUPT_SETUP                            0x010008
+#define GPIO_INTERRUPT_SETUP_TRIGGER_31                 22:22
+#define GPIO_INTERRUPT_SETUP_TRIGGER_31_EDGE            0
+#define GPIO_INTERRUPT_SETUP_TRIGGER_31_LEVEL           1
+#define GPIO_INTERRUPT_SETUP_TRIGGER_30                 21:21
+#define GPIO_INTERRUPT_SETUP_TRIGGER_30_EDGE            0
+#define GPIO_INTERRUPT_SETUP_TRIGGER_30_LEVEL           1
+#define GPIO_INTERRUPT_SETUP_TRIGGER_29                 20:20
+#define GPIO_INTERRUPT_SETUP_TRIGGER_29_EDGE            0
+#define GPIO_INTERRUPT_SETUP_TRIGGER_29_LEVEL           1
+#define GPIO_INTERRUPT_SETUP_TRIGGER_28                 19:19
+#define GPIO_INTERRUPT_SETUP_TRIGGER_28_EDGE            0
+#define GPIO_INTERRUPT_SETUP_TRIGGER_28_LEVEL           1
+#define GPIO_INTERRUPT_SETUP_TRIGGER_27                 18:18
+#define GPIO_INTERRUPT_SETUP_TRIGGER_27_EDGE            0
+#define GPIO_INTERRUPT_SETUP_TRIGGER_27_LEVEL           1
+#define GPIO_INTERRUPT_SETUP_TRIGGER_26                 17:17
+#define GPIO_INTERRUPT_SETUP_TRIGGER_26_EDGE            0
+#define GPIO_INTERRUPT_SETUP_TRIGGER_26_LEVEL           1
+#define GPIO_INTERRUPT_SETUP_TRIGGER_25                 16:16
+#define GPIO_INTERRUPT_SETUP_TRIGGER_25_EDGE            0
+#define GPIO_INTERRUPT_SETUP_TRIGGER_25_LEVEL           1
+#define GPIO_INTERRUPT_SETUP_ACTIVE_31                  14:14
+#define GPIO_INTERRUPT_SETUP_ACTIVE_31_LOW              0
+#define GPIO_INTERRUPT_SETUP_ACTIVE_31_HIGH             1
+#define GPIO_INTERRUPT_SETUP_ACTIVE_30                  13:13
+#define GPIO_INTERRUPT_SETUP_ACTIVE_30_LOW              0
+#define GPIO_INTERRUPT_SETUP_ACTIVE_30_HIGH             1
+#define GPIO_INTERRUPT_SETUP_ACTIVE_29                  12:12
+#define GPIO_INTERRUPT_SETUP_ACTIVE_29_LOW              0
+#define GPIO_INTERRUPT_SETUP_ACTIVE_29_HIGH             1
+#define GPIO_INTERRUPT_SETUP_ACTIVE_28                  11:11
+#define GPIO_INTERRUPT_SETUP_ACTIVE_28_LOW              0
+#define GPIO_INTERRUPT_SETUP_ACTIVE_28_HIGH             1
+#define GPIO_INTERRUPT_SETUP_ACTIVE_27                  10:10
+#define GPIO_INTERRUPT_SETUP_ACTIVE_27_LOW              0
+#define GPIO_INTERRUPT_SETUP_ACTIVE_27_HIGH             1
+#define GPIO_INTERRUPT_SETUP_ACTIVE_26                  9:9
+#define GPIO_INTERRUPT_SETUP_ACTIVE_26_LOW              0
+#define GPIO_INTERRUPT_SETUP_ACTIVE_26_HIGH             1
+#define GPIO_INTERRUPT_SETUP_ACTIVE_25                  8:8
+#define GPIO_INTERRUPT_SETUP_ACTIVE_25_LOW              0
+#define GPIO_INTERRUPT_SETUP_ACTIVE_25_HIGH             1
+#define GPIO_INTERRUPT_SETUP_ENABLE_31                  6:6
+#define GPIO_INTERRUPT_SETUP_ENABLE_31_GPIO             0
+#define GPIO_INTERRUPT_SETUP_ENABLE_31_INTERRUPT        1
+#define GPIO_INTERRUPT_SETUP_ENABLE_30                  5:5
+#define GPIO_INTERRUPT_SETUP_ENABLE_30_GPIO             0
+#define GPIO_INTERRUPT_SETUP_ENABLE_30_INTERRUPT        1
+#define GPIO_INTERRUPT_SETUP_ENABLE_29                  4:4
+#define GPIO_INTERRUPT_SETUP_ENABLE_29_GPIO             0
+#define GPIO_INTERRUPT_SETUP_ENABLE_29_INTERRUPT        1
+#define GPIO_INTERRUPT_SETUP_ENABLE_28                  3:3
+#define GPIO_INTERRUPT_SETUP_ENABLE_28_GPIO             0
+#define GPIO_INTERRUPT_SETUP_ENABLE_28_INTERRUPT        1
+#define GPIO_INTERRUPT_SETUP_ENABLE_27                  2:2
+#define GPIO_INTERRUPT_SETUP_ENABLE_27_GPIO             0
+#define GPIO_INTERRUPT_SETUP_ENABLE_27_INTERRUPT        1
+#define GPIO_INTERRUPT_SETUP_ENABLE_26                  1:1
+#define GPIO_INTERRUPT_SETUP_ENABLE_26_GPIO             0
+#define GPIO_INTERRUPT_SETUP_ENABLE_26_INTERRUPT        1
+#define GPIO_INTERRUPT_SETUP_ENABLE_25                  0:0
+#define GPIO_INTERRUPT_SETUP_ENABLE_25_GPIO             0
+#define GPIO_INTERRUPT_SETUP_ENABLE_25_INTERRUPT        1
+
+#define GPIO_INTERRUPT_STATUS                           0x01000C
+#define GPIO_INTERRUPT_STATUS_31                        22:22
+#define GPIO_INTERRUPT_STATUS_31_INACTIVE               0
+#define GPIO_INTERRUPT_STATUS_31_ACTIVE                 1
+#define GPIO_INTERRUPT_STATUS_31_RESET                  1
+#define GPIO_INTERRUPT_STATUS_30                        21:21
+#define GPIO_INTERRUPT_STATUS_30_INACTIVE               0
+#define GPIO_INTERRUPT_STATUS_30_ACTIVE                 1
+#define GPIO_INTERRUPT_STATUS_30_RESET                  1
+#define GPIO_INTERRUPT_STATUS_29                        20:20
+#define GPIO_INTERRUPT_STATUS_29_INACTIVE               0
+#define GPIO_INTERRUPT_STATUS_29_ACTIVE                 1
+#define GPIO_INTERRUPT_STATUS_29_RESET                  1
+#define GPIO_INTERRUPT_STATUS_28                        19:19
+#define GPIO_INTERRUPT_STATUS_28_INACTIVE               0
+#define GPIO_INTERRUPT_STATUS_28_ACTIVE                 1
+#define GPIO_INTERRUPT_STATUS_28_RESET                  1
+#define GPIO_INTERRUPT_STATUS_27                        18:18
+#define GPIO_INTERRUPT_STATUS_27_INACTIVE               0
+#define GPIO_INTERRUPT_STATUS_27_ACTIVE                 1
+#define GPIO_INTERRUPT_STATUS_27_RESET                  1
+#define GPIO_INTERRUPT_STATUS_26                        17:17
+#define GPIO_INTERRUPT_STATUS_26_INACTIVE               0
+#define GPIO_INTERRUPT_STATUS_26_ACTIVE                 1
+#define GPIO_INTERRUPT_STATUS_26_RESET                  1
+#define GPIO_INTERRUPT_STATUS_25                        16:16
+#define GPIO_INTERRUPT_STATUS_25_INACTIVE               0
+#define GPIO_INTERRUPT_STATUS_25_ACTIVE                 1
+#define GPIO_INTERRUPT_STATUS_25_RESET                  1
+
+
+#define PANEL_DISPLAY_CTRL                            0x080000
+#define PANEL_DISPLAY_CTRL_RESERVED_1_MASK            31:30
+#define PANEL_DISPLAY_CTRL_RESERVED_1_MASK_DISABLE    0
+#define PANEL_DISPLAY_CTRL_RESERVED_1_MASK_ENABLE     3
+#define PANEL_DISPLAY_CTRL_SELECT                     29:28
+#define PANEL_DISPLAY_CTRL_SELECT_PANEL               0
+#define PANEL_DISPLAY_CTRL_SELECT_VGA                 1
+#define PANEL_DISPLAY_CTRL_SELECT_CRT                 2
+#define PANEL_DISPLAY_CTRL_FPEN                       27:27
+#define PANEL_DISPLAY_CTRL_FPEN_LOW                   0
+#define PANEL_DISPLAY_CTRL_FPEN_HIGH                  1
+#define PANEL_DISPLAY_CTRL_VBIASEN                    26:26
+#define PANEL_DISPLAY_CTRL_VBIASEN_LOW                0
+#define PANEL_DISPLAY_CTRL_VBIASEN_HIGH               1
+#define PANEL_DISPLAY_CTRL_DATA                       25:25
+#define PANEL_DISPLAY_CTRL_DATA_DISABLE               0
+#define PANEL_DISPLAY_CTRL_DATA_ENABLE                1
+#define PANEL_DISPLAY_CTRL_FPVDDEN                    24:24
+#define PANEL_DISPLAY_CTRL_FPVDDEN_LOW                0
+#define PANEL_DISPLAY_CTRL_FPVDDEN_HIGH               1
+#define PANEL_DISPLAY_CTRL_RESERVED_2_MASK            23:20
+#define PANEL_DISPLAY_CTRL_RESERVED_2_MASK_DISABLE    0
+#define PANEL_DISPLAY_CTRL_RESERVED_2_MASK_ENABLE     15
+
+#define PANEL_DISPLAY_CTRL_TFT_DISP 19:18
+#define PANEL_DISPLAY_CTRL_TFT_DISP_24 0
+#define PANEL_DISPLAY_CTRL_TFT_DISP_36 1
+#define PANEL_DISPLAY_CTRL_TFT_DISP_18 2
+
+
+#define PANEL_DISPLAY_CTRL_DUAL_DISPLAY               19:19
+#define PANEL_DISPLAY_CTRL_DUAL_DISPLAY_DISABLE       0
+#define PANEL_DISPLAY_CTRL_DUAL_DISPLAY_ENABLE        1
+#define PANEL_DISPLAY_CTRL_DOUBLE_PIXEL               18:18
+#define PANEL_DISPLAY_CTRL_DOUBLE_PIXEL_DISABLE       0
+#define PANEL_DISPLAY_CTRL_DOUBLE_PIXEL_ENABLE        1
+#define PANEL_DISPLAY_CTRL_FIFO                       17:16
+#define PANEL_DISPLAY_CTRL_FIFO_1                     0
+#define PANEL_DISPLAY_CTRL_FIFO_3                     1
+#define PANEL_DISPLAY_CTRL_FIFO_7                     2
+#define PANEL_DISPLAY_CTRL_FIFO_11                    3
+#define PANEL_DISPLAY_CTRL_RESERVED_3_MASK            15:15
+#define PANEL_DISPLAY_CTRL_RESERVED_3_MASK_DISABLE    0
+#define PANEL_DISPLAY_CTRL_RESERVED_3_MASK_ENABLE     1
+#define PANEL_DISPLAY_CTRL_CLOCK_PHASE                14:14
+#define PANEL_DISPLAY_CTRL_CLOCK_PHASE_ACTIVE_HIGH    0
+#define PANEL_DISPLAY_CTRL_CLOCK_PHASE_ACTIVE_LOW     1
+#define PANEL_DISPLAY_CTRL_VSYNC_PHASE                13:13
+#define PANEL_DISPLAY_CTRL_VSYNC_PHASE_ACTIVE_HIGH    0
+#define PANEL_DISPLAY_CTRL_VSYNC_PHASE_ACTIVE_LOW     1
+#define PANEL_DISPLAY_CTRL_HSYNC_PHASE                12:12
+#define PANEL_DISPLAY_CTRL_HSYNC_PHASE_ACTIVE_HIGH    0
+#define PANEL_DISPLAY_CTRL_HSYNC_PHASE_ACTIVE_LOW     1
+#define PANEL_DISPLAY_CTRL_VSYNC                      11:11
+#define PANEL_DISPLAY_CTRL_VSYNC_ACTIVE_HIGH          0
+#define PANEL_DISPLAY_CTRL_VSYNC_ACTIVE_LOW           1
+#define PANEL_DISPLAY_CTRL_CAPTURE_TIMING             10:10
+#define PANEL_DISPLAY_CTRL_CAPTURE_TIMING_DISABLE     0
+#define PANEL_DISPLAY_CTRL_CAPTURE_TIMING_ENABLE      1
+#define PANEL_DISPLAY_CTRL_COLOR_KEY                  9:9
+#define PANEL_DISPLAY_CTRL_COLOR_KEY_DISABLE          0
+#define PANEL_DISPLAY_CTRL_COLOR_KEY_ENABLE           1
+#define PANEL_DISPLAY_CTRL_TIMING                     8:8
+#define PANEL_DISPLAY_CTRL_TIMING_DISABLE             0
+#define PANEL_DISPLAY_CTRL_TIMING_ENABLE              1
+#define PANEL_DISPLAY_CTRL_VERTICAL_PAN_DIR           7:7
+#define PANEL_DISPLAY_CTRL_VERTICAL_PAN_DIR_DOWN      0
+#define PANEL_DISPLAY_CTRL_VERTICAL_PAN_DIR_UP        1
+#define PANEL_DISPLAY_CTRL_VERTICAL_PAN               6:6
+#define PANEL_DISPLAY_CTRL_VERTICAL_PAN_DISABLE       0
+#define PANEL_DISPLAY_CTRL_VERTICAL_PAN_ENABLE        1
+#define PANEL_DISPLAY_CTRL_HORIZONTAL_PAN_DIR         5:5
+#define PANEL_DISPLAY_CTRL_HORIZONTAL_PAN_DIR_RIGHT   0
+#define PANEL_DISPLAY_CTRL_HORIZONTAL_PAN_DIR_LEFT    1
+#define PANEL_DISPLAY_CTRL_HORIZONTAL_PAN             4:4
+#define PANEL_DISPLAY_CTRL_HORIZONTAL_PAN_DISABLE     0
+#define PANEL_DISPLAY_CTRL_HORIZONTAL_PAN_ENABLE      1
+#define PANEL_DISPLAY_CTRL_GAMMA                      3:3
+#define PANEL_DISPLAY_CTRL_GAMMA_DISABLE              0
+#define PANEL_DISPLAY_CTRL_GAMMA_ENABLE               1
+#define PANEL_DISPLAY_CTRL_PLANE                      2:2
+#define PANEL_DISPLAY_CTRL_PLANE_DISABLE              0
+#define PANEL_DISPLAY_CTRL_PLANE_ENABLE               1
+#define PANEL_DISPLAY_CTRL_FORMAT                     1:0
+#define PANEL_DISPLAY_CTRL_FORMAT_8                   0
+#define PANEL_DISPLAY_CTRL_FORMAT_16                  1
+#define PANEL_DISPLAY_CTRL_FORMAT_32                  2
+
+#define PANEL_PAN_CTRL                                0x080004
+#define PANEL_PAN_CTRL_VERTICAL_PAN                   31:24
+#define PANEL_PAN_CTRL_VERTICAL_VSYNC                 21:16
+#define PANEL_PAN_CTRL_HORIZONTAL_PAN                 15:8
+#define PANEL_PAN_CTRL_HORIZONTAL_VSYNC               5:0
+
+#define PANEL_COLOR_KEY                               0x080008
+#define PANEL_COLOR_KEY_MASK                          31:16
+#define PANEL_COLOR_KEY_VALUE                         15:0
+
+#define PANEL_FB_ADDRESS                              0x08000C
+#define PANEL_FB_ADDRESS_STATUS                       31:31
+#define PANEL_FB_ADDRESS_STATUS_CURRENT               0
+#define PANEL_FB_ADDRESS_STATUS_PENDING               1
+#define PANEL_FB_ADDRESS_EXT                          27:27
+#define PANEL_FB_ADDRESS_EXT_LOCAL                    0
+#define PANEL_FB_ADDRESS_EXT_EXTERNAL                 1
+#define PANEL_FB_ADDRESS_ADDRESS                      25:0
+
+#define PANEL_FB_WIDTH                                0x080010
+#define PANEL_FB_WIDTH_WIDTH                          29:16
+#define PANEL_FB_WIDTH_OFFSET                         13:0
+
+#define PANEL_WINDOW_WIDTH                            0x080014
+#define PANEL_WINDOW_WIDTH_WIDTH                      27:16
+#define PANEL_WINDOW_WIDTH_X                          11:0
+
+#define PANEL_WINDOW_HEIGHT                           0x080018
+#define PANEL_WINDOW_HEIGHT_HEIGHT                    27:16
+#define PANEL_WINDOW_HEIGHT_Y                         11:0
+
+#define PANEL_PLANE_TL                                0x08001C
+#define PANEL_PLANE_TL_TOP                            26:16
+#define PANEL_PLANE_TL_LEFT                           10:0
+
+#define PANEL_PLANE_BR                                0x080020
+#define PANEL_PLANE_BR_BOTTOM                         26:16
+#define PANEL_PLANE_BR_RIGHT                          10:0
+
+#define PANEL_HORIZONTAL_TOTAL                        0x080024
+#define PANEL_HORIZONTAL_TOTAL_TOTAL                  27:16
+#define PANEL_HORIZONTAL_TOTAL_DISPLAY_END            11:0
+
+#define PANEL_HORIZONTAL_SYNC                         0x080028
+#define PANEL_HORIZONTAL_SYNC_WIDTH                   23:16
+#define PANEL_HORIZONTAL_SYNC_START                   11:0
+
+#define PANEL_VERTICAL_TOTAL                          0x08002C
+#define PANEL_VERTICAL_TOTAL_TOTAL                    26:16
+#define PANEL_VERTICAL_TOTAL_DISPLAY_END              10:0
+
+#define PANEL_VERTICAL_SYNC                           0x080030
+#define PANEL_VERTICAL_SYNC_HEIGHT                    21:16
+#define PANEL_VERTICAL_SYNC_START                     10:0
+
+#define PANEL_CURRENT_LINE                            0x080034
+#define PANEL_CURRENT_LINE_LINE                       10:0
+
+/* Video Control */
+
+#define VIDEO_DISPLAY_CTRL                              0x080040
+#define VIDEO_DISPLAY_CTRL_LINE_BUFFER                  18:18
+#define VIDEO_DISPLAY_CTRL_LINE_BUFFER_DISABLE          0
+#define VIDEO_DISPLAY_CTRL_LINE_BUFFER_ENABLE           1
+#define VIDEO_DISPLAY_CTRL_FIFO                         17:16
+#define VIDEO_DISPLAY_CTRL_FIFO_1                       0
+#define VIDEO_DISPLAY_CTRL_FIFO_3                       1
+#define VIDEO_DISPLAY_CTRL_FIFO_7                       2
+#define VIDEO_DISPLAY_CTRL_FIFO_11                      3
+#define VIDEO_DISPLAY_CTRL_BUFFER                       15:15
+#define VIDEO_DISPLAY_CTRL_BUFFER_0                     0
+#define VIDEO_DISPLAY_CTRL_BUFFER_1                     1
+#define VIDEO_DISPLAY_CTRL_CAPTURE                      14:14
+#define VIDEO_DISPLAY_CTRL_CAPTURE_DISABLE              0
+#define VIDEO_DISPLAY_CTRL_CAPTURE_ENABLE               1
+#define VIDEO_DISPLAY_CTRL_DOUBLE_BUFFER                13:13
+#define VIDEO_DISPLAY_CTRL_DOUBLE_BUFFER_DISABLE        0
+#define VIDEO_DISPLAY_CTRL_DOUBLE_BUFFER_ENABLE         1
+#define VIDEO_DISPLAY_CTRL_BYTE_SWAP                    12:12
+#define VIDEO_DISPLAY_CTRL_BYTE_SWAP_DISABLE            0
+#define VIDEO_DISPLAY_CTRL_BYTE_SWAP_ENABLE             1
+#define VIDEO_DISPLAY_CTRL_VERTICAL_SCALE               11:11
+#define VIDEO_DISPLAY_CTRL_VERTICAL_SCALE_NORMAL        0
+#define VIDEO_DISPLAY_CTRL_VERTICAL_SCALE_HALF          1
+#define VIDEO_DISPLAY_CTRL_HORIZONTAL_SCALE             10:10
+#define VIDEO_DISPLAY_CTRL_HORIZONTAL_SCALE_NORMAL      0
+#define VIDEO_DISPLAY_CTRL_HORIZONTAL_SCALE_HALF        1
+#define VIDEO_DISPLAY_CTRL_VERTICAL_MODE                9:9
+#define VIDEO_DISPLAY_CTRL_VERTICAL_MODE_REPLICATE      0
+#define VIDEO_DISPLAY_CTRL_VERTICAL_MODE_INTERPOLATE    1
+#define VIDEO_DISPLAY_CTRL_HORIZONTAL_MODE              8:8
+#define VIDEO_DISPLAY_CTRL_HORIZONTAL_MODE_REPLICATE    0
+#define VIDEO_DISPLAY_CTRL_HORIZONTAL_MODE_INTERPOLATE  1
+#define VIDEO_DISPLAY_CTRL_PIXEL                        7:4
+#define VIDEO_DISPLAY_CTRL_GAMMA                        3:3
+#define VIDEO_DISPLAY_CTRL_GAMMA_DISABLE                0
+#define VIDEO_DISPLAY_CTRL_GAMMA_ENABLE                 1
+#define VIDEO_DISPLAY_CTRL_PLANE                        2:2
+#define VIDEO_DISPLAY_CTRL_PLANE_DISABLE                0
+#define VIDEO_DISPLAY_CTRL_PLANE_ENABLE                 1
+#define VIDEO_DISPLAY_CTRL_FORMAT                       1:0
+#define VIDEO_DISPLAY_CTRL_FORMAT_8                     0
+#define VIDEO_DISPLAY_CTRL_FORMAT_16                    1
+#define VIDEO_DISPLAY_CTRL_FORMAT_32                    2
+#define VIDEO_DISPLAY_CTRL_FORMAT_YUV                   3
+
+#define VIDEO_FB_0_ADDRESS                            0x080044
+#define VIDEO_FB_0_ADDRESS_STATUS                     31:31
+#define VIDEO_FB_0_ADDRESS_STATUS_CURRENT             0
+#define VIDEO_FB_0_ADDRESS_STATUS_PENDING             1
+#define VIDEO_FB_0_ADDRESS_EXT                        27:27
+#define VIDEO_FB_0_ADDRESS_EXT_LOCAL                  0
+#define VIDEO_FB_0_ADDRESS_EXT_EXTERNAL               1
+#define VIDEO_FB_0_ADDRESS_ADDRESS                    25:0
+
+#define VIDEO_FB_WIDTH                                0x080048
+#define VIDEO_FB_WIDTH_WIDTH                          29:16
+#define VIDEO_FB_WIDTH_OFFSET                         13:0
+
+#define VIDEO_FB_0_LAST_ADDRESS                       0x08004C
+#define VIDEO_FB_0_LAST_ADDRESS_EXT                   27:27
+#define VIDEO_FB_0_LAST_ADDRESS_EXT_LOCAL             0
+#define VIDEO_FB_0_LAST_ADDRESS_EXT_EXTERNAL          1
+#define VIDEO_FB_0_LAST_ADDRESS_ADDRESS               25:0
+
+#define VIDEO_PLANE_TL                                0x080050
+#define VIDEO_PLANE_TL_TOP                            26:16
+#define VIDEO_PLANE_TL_LEFT                           10:0
+
+#define VIDEO_PLANE_BR                                0x080054
+#define VIDEO_PLANE_BR_BOTTOM                         26:16
+#define VIDEO_PLANE_BR_RIGHT                          10:0
+
+#define VIDEO_SCALE                                   0x080058
+#define VIDEO_SCALE_VERTICAL_MODE                     31:31
+#define VIDEO_SCALE_VERTICAL_MODE_EXPAND              0
+#define VIDEO_SCALE_VERTICAL_MODE_SHRINK              1
+#define VIDEO_SCALE_VERTICAL_SCALE                    27:16
+#define VIDEO_SCALE_HORIZONTAL_MODE                   15:15
+#define VIDEO_SCALE_HORIZONTAL_MODE_EXPAND            0
+#define VIDEO_SCALE_HORIZONTAL_MODE_SHRINK            1
+#define VIDEO_SCALE_HORIZONTAL_SCALE                  11:0
+
+#define VIDEO_INITIAL_SCALE                           0x08005C
+#define VIDEO_INITIAL_SCALE_FB_1                      27:16
+#define VIDEO_INITIAL_SCALE_FB_0                      11:0
+
+#define VIDEO_YUV_CONSTANTS                           0x080060
+#define VIDEO_YUV_CONSTANTS_Y                         31:24
+#define VIDEO_YUV_CONSTANTS_R                         23:16
+#define VIDEO_YUV_CONSTANTS_G                         15:8
+#define VIDEO_YUV_CONSTANTS_B                         7:0
+
+#define VIDEO_FB_1_ADDRESS                            0x080064
+#define VIDEO_FB_1_ADDRESS_STATUS                     31:31
+#define VIDEO_FB_1_ADDRESS_STATUS_CURRENT             0
+#define VIDEO_FB_1_ADDRESS_STATUS_PENDING             1
+#define VIDEO_FB_1_ADDRESS_EXT                        27:27
+#define VIDEO_FB_1_ADDRESS_EXT_LOCAL                  0
+#define VIDEO_FB_1_ADDRESS_EXT_EXTERNAL               1
+#define VIDEO_FB_1_ADDRESS_ADDRESS                    25:0
+
+#define VIDEO_FB_1_LAST_ADDRESS                       0x080068
+#define VIDEO_FB_1_LAST_ADDRESS_EXT                   27:27
+#define VIDEO_FB_1_LAST_ADDRESS_EXT_LOCAL             0
+#define VIDEO_FB_1_LAST_ADDRESS_EXT_EXTERNAL          1
+#define VIDEO_FB_1_LAST_ADDRESS_ADDRESS               25:0
+
+/* Video Alpha Control */
+
+#define VIDEO_ALPHA_DISPLAY_CTRL                        0x080080
+#define VIDEO_ALPHA_DISPLAY_CTRL_SELECT                 28:28
+#define VIDEO_ALPHA_DISPLAY_CTRL_SELECT_PER_PIXEL       0
+#define VIDEO_ALPHA_DISPLAY_CTRL_SELECT_ALPHA           1
+#define VIDEO_ALPHA_DISPLAY_CTRL_ALPHA                  27:24
+#define VIDEO_ALPHA_DISPLAY_CTRL_FIFO                   17:16
+#define VIDEO_ALPHA_DISPLAY_CTRL_FIFO_1                 0
+#define VIDEO_ALPHA_DISPLAY_CTRL_FIFO_3                 1
+#define VIDEO_ALPHA_DISPLAY_CTRL_FIFO_7                 2
+#define VIDEO_ALPHA_DISPLAY_CTRL_FIFO_11                3
+#define VIDEO_ALPHA_DISPLAY_CTRL_VERT_SCALE             11:11
+#define VIDEO_ALPHA_DISPLAY_CTRL_VERT_SCALE_NORMAL      0
+#define VIDEO_ALPHA_DISPLAY_CTRL_VERT_SCALE_HALF        1
+#define VIDEO_ALPHA_DISPLAY_CTRL_HORZ_SCALE             10:10
+#define VIDEO_ALPHA_DISPLAY_CTRL_HORZ_SCALE_NORMAL      0
+#define VIDEO_ALPHA_DISPLAY_CTRL_HORZ_SCALE_HALF        1
+#define VIDEO_ALPHA_DISPLAY_CTRL_VERT_MODE              9:9
+#define VIDEO_ALPHA_DISPLAY_CTRL_VERT_MODE_REPLICATE    0
+#define VIDEO_ALPHA_DISPLAY_CTRL_VERT_MODE_INTERPOLATE  1
+#define VIDEO_ALPHA_DISPLAY_CTRL_HORZ_MODE              8:8
+#define VIDEO_ALPHA_DISPLAY_CTRL_HORZ_MODE_REPLICATE    0
+#define VIDEO_ALPHA_DISPLAY_CTRL_HORZ_MODE_INTERPOLATE  1
+#define VIDEO_ALPHA_DISPLAY_CTRL_PIXEL                  7:4
+#define VIDEO_ALPHA_DISPLAY_CTRL_CHROMA_KEY             3:3
+#define VIDEO_ALPHA_DISPLAY_CTRL_CHROMA_KEY_DISABLE     0
+#define VIDEO_ALPHA_DISPLAY_CTRL_CHROMA_KEY_ENABLE      1
+#define VIDEO_ALPHA_DISPLAY_CTRL_PLANE                  2:2
+#define VIDEO_ALPHA_DISPLAY_CTRL_PLANE_DISABLE          0
+#define VIDEO_ALPHA_DISPLAY_CTRL_PLANE_ENABLE           1
+#define VIDEO_ALPHA_DISPLAY_CTRL_FORMAT                 1:0
+#define VIDEO_ALPHA_DISPLAY_CTRL_FORMAT_8               0
+#define VIDEO_ALPHA_DISPLAY_CTRL_FORMAT_16              1
+#define VIDEO_ALPHA_DISPLAY_CTRL_FORMAT_ALPHA_4_4       2
+#define VIDEO_ALPHA_DISPLAY_CTRL_FORMAT_ALPHA_4_4_4_4   3
+
+#define VIDEO_ALPHA_FB_ADDRESS                        0x080084
+#define VIDEO_ALPHA_FB_ADDRESS_STATUS                 31:31
+#define VIDEO_ALPHA_FB_ADDRESS_STATUS_CURRENT         0
+#define VIDEO_ALPHA_FB_ADDRESS_STATUS_PENDING         1
+#define VIDEO_ALPHA_FB_ADDRESS_EXT                    27:27
+#define VIDEO_ALPHA_FB_ADDRESS_EXT_LOCAL              0
+#define VIDEO_ALPHA_FB_ADDRESS_EXT_EXTERNAL           1
+#define VIDEO_ALPHA_FB_ADDRESS_ADDRESS                25:0
+
+#define VIDEO_ALPHA_FB_WIDTH                          0x080088
+#define VIDEO_ALPHA_FB_WIDTH_WIDTH                    29:16
+#define VIDEO_ALPHA_FB_WIDTH_OFFSET                   13:0
+
+#define VIDEO_ALPHA_FB_LAST_ADDRESS                   0x08008C
+#define VIDEO_ALPHA_FB_LAST_ADDRESS_EXT               27:27
+#define VIDEO_ALPHA_FB_LAST_ADDRESS_EXT_LOCAL         0
+#define VIDEO_ALPHA_FB_LAST_ADDRESS_EXT_EXTERNAL      1
+#define VIDEO_ALPHA_FB_LAST_ADDRESS_ADDRESS           25:0
+
+#define VIDEO_ALPHA_PLANE_TL                          0x080090
+#define VIDEO_ALPHA_PLANE_TL_TOP                      26:16
+#define VIDEO_ALPHA_PLANE_TL_LEFT                     10:0
+
+#define VIDEO_ALPHA_PLANE_BR                          0x080094
+#define VIDEO_ALPHA_PLANE_BR_BOTTOM                   26:16
+#define VIDEO_ALPHA_PLANE_BR_RIGHT                    10:0
+
+#define VIDEO_ALPHA_SCALE                             0x080098
+#define VIDEO_ALPHA_SCALE_VERTICAL_MODE               31:31
+#define VIDEO_ALPHA_SCALE_VERTICAL_MODE_EXPAND        0
+#define VIDEO_ALPHA_SCALE_VERTICAL_MODE_SHRINK        1
+#define VIDEO_ALPHA_SCALE_VERTICAL_SCALE              27:16
+#define VIDEO_ALPHA_SCALE_HORIZONTAL_MODE             15:15
+#define VIDEO_ALPHA_SCALE_HORIZONTAL_MODE_EXPAND      0
+#define VIDEO_ALPHA_SCALE_HORIZONTAL_MODE_SHRINK      1
+#define VIDEO_ALPHA_SCALE_HORIZONTAL_SCALE            11:0
+
+#define VIDEO_ALPHA_INITIAL_SCALE                     0x08009C
+#define VIDEO_ALPHA_INITIAL_SCALE_VERTICAL            27:16
+#define VIDEO_ALPHA_INITIAL_SCALE_HORIZONTAL          11:0
+
+#define VIDEO_ALPHA_CHROMA_KEY                        0x0800A0
+#define VIDEO_ALPHA_CHROMA_KEY_MASK                   31:16
+#define VIDEO_ALPHA_CHROMA_KEY_VALUE                  15:0
+
+#define VIDEO_ALPHA_COLOR_LOOKUP_01                   0x0800A4
+#define VIDEO_ALPHA_COLOR_LOOKUP_01_1                 31:16
+#define VIDEO_ALPHA_COLOR_LOOKUP_01_1_RED             31:27
+#define VIDEO_ALPHA_COLOR_LOOKUP_01_1_GREEN           26:21
+#define VIDEO_ALPHA_COLOR_LOOKUP_01_1_BLUE            20:16
+#define VIDEO_ALPHA_COLOR_LOOKUP_01_0                 15:0
+#define VIDEO_ALPHA_COLOR_LOOKUP_01_0_RED             15:11
+#define VIDEO_ALPHA_COLOR_LOOKUP_01_0_GREEN           10:5
+#define VIDEO_ALPHA_COLOR_LOOKUP_01_0_BLUE            4:0
+
+#define VIDEO_ALPHA_COLOR_LOOKUP_23                   0x0800A8
+#define VIDEO_ALPHA_COLOR_LOOKUP_23_3                 31:16
+#define VIDEO_ALPHA_COLOR_LOOKUP_23_3_RED             31:27
+#define VIDEO_ALPHA_COLOR_LOOKUP_23_3_GREEN           26:21
+#define VIDEO_ALPHA_COLOR_LOOKUP_23_3_BLUE            20:16
+#define VIDEO_ALPHA_COLOR_LOOKUP_23_2                 15:0
+#define VIDEO_ALPHA_COLOR_LOOKUP_23_2_RED             15:11
+#define VIDEO_ALPHA_COLOR_LOOKUP_23_2_GREEN           10:5
+#define VIDEO_ALPHA_COLOR_LOOKUP_23_2_BLUE            4:0
+
+#define VIDEO_ALPHA_COLOR_LOOKUP_45                   0x0800AC
+#define VIDEO_ALPHA_COLOR_LOOKUP_45_5                 31:16
+#define VIDEO_ALPHA_COLOR_LOOKUP_45_5_RED             31:27
+#define VIDEO_ALPHA_COLOR_LOOKUP_45_5_GREEN           26:21
+#define VIDEO_ALPHA_COLOR_LOOKUP_45_5_BLUE            20:16
+#define VIDEO_ALPHA_COLOR_LOOKUP_45_4                 15:0
+#define VIDEO_ALPHA_COLOR_LOOKUP_45_4_RED             15:11
+#define VIDEO_ALPHA_COLOR_LOOKUP_45_4_GREEN           10:5
+#define VIDEO_ALPHA_COLOR_LOOKUP_45_4_BLUE            4:0
+
+#define VIDEO_ALPHA_COLOR_LOOKUP_67                   0x0800B0
+#define VIDEO_ALPHA_COLOR_LOOKUP_67_7                 31:16
+#define VIDEO_ALPHA_COLOR_LOOKUP_67_7_RED             31:27
+#define VIDEO_ALPHA_COLOR_LOOKUP_67_7_GREEN           26:21
+#define VIDEO_ALPHA_COLOR_LOOKUP_67_7_BLUE            20:16
+#define VIDEO_ALPHA_COLOR_LOOKUP_67_6                 15:0
+#define VIDEO_ALPHA_COLOR_LOOKUP_67_6_RED             15:11
+#define VIDEO_ALPHA_COLOR_LOOKUP_67_6_GREEN           10:5
+#define VIDEO_ALPHA_COLOR_LOOKUP_67_6_BLUE            4:0
+
+#define VIDEO_ALPHA_COLOR_LOOKUP_89                   0x0800B4
+#define VIDEO_ALPHA_COLOR_LOOKUP_89_9                 31:16
+#define VIDEO_ALPHA_COLOR_LOOKUP_89_9_RED             31:27
+#define VIDEO_ALPHA_COLOR_LOOKUP_89_9_GREEN           26:21
+#define VIDEO_ALPHA_COLOR_LOOKUP_89_9_BLUE            20:16
+#define VIDEO_ALPHA_COLOR_LOOKUP_89_8                 15:0
+#define VIDEO_ALPHA_COLOR_LOOKUP_89_8_RED             15:11
+#define VIDEO_ALPHA_COLOR_LOOKUP_89_8_GREEN           10:5
+#define VIDEO_ALPHA_COLOR_LOOKUP_89_8_BLUE            4:0
+
+#define VIDEO_ALPHA_COLOR_LOOKUP_AB                   0x0800B8
+#define VIDEO_ALPHA_COLOR_LOOKUP_AB_B                 31:16
+#define VIDEO_ALPHA_COLOR_LOOKUP_AB_B_RED             31:27
+#define VIDEO_ALPHA_COLOR_LOOKUP_AB_B_GREEN           26:21
+#define VIDEO_ALPHA_COLOR_LOOKUP_AB_B_BLUE            20:16
+#define VIDEO_ALPHA_COLOR_LOOKUP_AB_A                 15:0
+#define VIDEO_ALPHA_COLOR_LOOKUP_AB_A_RED             15:11
+#define VIDEO_ALPHA_COLOR_LOOKUP_AB_A_GREEN           10:5
+#define VIDEO_ALPHA_COLOR_LOOKUP_AB_A_BLUE            4:0
+
+#define VIDEO_ALPHA_COLOR_LOOKUP_CD                   0x0800BC
+#define VIDEO_ALPHA_COLOR_LOOKUP_CD_D                 31:16
+#define VIDEO_ALPHA_COLOR_LOOKUP_CD_D_RED             31:27
+#define VIDEO_ALPHA_COLOR_LOOKUP_CD_D_GREEN           26:21
+#define VIDEO_ALPHA_COLOR_LOOKUP_CD_D_BLUE            20:16
+#define VIDEO_ALPHA_COLOR_LOOKUP_CD_C                 15:0
+#define VIDEO_ALPHA_COLOR_LOOKUP_CD_C_RED             15:11
+#define VIDEO_ALPHA_COLOR_LOOKUP_CD_C_GREEN           10:5
+#define VIDEO_ALPHA_COLOR_LOOKUP_CD_C_BLUE            4:0
+
+#define VIDEO_ALPHA_COLOR_LOOKUP_EF                   0x0800C0
+#define VIDEO_ALPHA_COLOR_LOOKUP_EF_F                 31:16
+#define VIDEO_ALPHA_COLOR_LOOKUP_EF_F_RED             31:27
+#define VIDEO_ALPHA_COLOR_LOOKUP_EF_F_GREEN           26:21
+#define VIDEO_ALPHA_COLOR_LOOKUP_EF_F_BLUE            20:16
+#define VIDEO_ALPHA_COLOR_LOOKUP_EF_E                 15:0
+#define VIDEO_ALPHA_COLOR_LOOKUP_EF_E_RED             15:11
+#define VIDEO_ALPHA_COLOR_LOOKUP_EF_E_GREEN           10:5
+#define VIDEO_ALPHA_COLOR_LOOKUP_EF_E_BLUE            4:0
+
+/* Panel Cursor Control */
+
+#define PANEL_HWC_ADDRESS                             0x0800F0
+#define PANEL_HWC_ADDRESS_ENABLE                      31:31
+#define PANEL_HWC_ADDRESS_ENABLE_DISABLE              0
+#define PANEL_HWC_ADDRESS_ENABLE_ENABLE               1
+#define PANEL_HWC_ADDRESS_EXT                         27:27
+#define PANEL_HWC_ADDRESS_EXT_LOCAL                   0
+#define PANEL_HWC_ADDRESS_EXT_EXTERNAL                1
+#define PANEL_HWC_ADDRESS_ADDRESS                     25:0
+
+#define PANEL_HWC_LOCATION                            0x0800F4
+#define PANEL_HWC_LOCATION_TOP                        27:27
+#define PANEL_HWC_LOCATION_TOP_INSIDE                 0
+#define PANEL_HWC_LOCATION_TOP_OUTSIDE                1
+#define PANEL_HWC_LOCATION_Y                          26:16
+#define PANEL_HWC_LOCATION_LEFT                       11:11
+#define PANEL_HWC_LOCATION_LEFT_INSIDE                0
+#define PANEL_HWC_LOCATION_LEFT_OUTSIDE               1
+#define PANEL_HWC_LOCATION_X                          10:0
+
+#define PANEL_HWC_COLOR_12                            0x0800F8
+#define PANEL_HWC_COLOR_12_2_RGB565                   31:16
+#define PANEL_HWC_COLOR_12_1_RGB565                   15:0
+
+#define PANEL_HWC_COLOR_3                             0x0800FC
+#define PANEL_HWC_COLOR_3_RGB565                      15:0
+
+/* Old Definitions +++ */
+#define PANEL_HWC_COLOR_01                            0x0800F8
+#define PANEL_HWC_COLOR_01_1_RED                      31:27
+#define PANEL_HWC_COLOR_01_1_GREEN                    26:21
+#define PANEL_HWC_COLOR_01_1_BLUE                     20:16
+#define PANEL_HWC_COLOR_01_0_RED                      15:11
+#define PANEL_HWC_COLOR_01_0_GREEN                    10:5
+#define PANEL_HWC_COLOR_01_0_BLUE                     4:0
+
+#define PANEL_HWC_COLOR_2                             0x0800FC
+#define PANEL_HWC_COLOR_2_RED                         15:11
+#define PANEL_HWC_COLOR_2_GREEN                       10:5
+#define PANEL_HWC_COLOR_2_BLUE                        4:0
+/* Old Definitions --- */
+
+/* Alpha Control */
+
+#define ALPHA_DISPLAY_CTRL                            0x080100
+#define ALPHA_DISPLAY_CTRL_SELECT                     28:28
+#define ALPHA_DISPLAY_CTRL_SELECT_PER_PIXEL           0
+#define ALPHA_DISPLAY_CTRL_SELECT_ALPHA               1
+#define ALPHA_DISPLAY_CTRL_ALPHA                      27:24
+#define ALPHA_DISPLAY_CTRL_FIFO                       17:16
+#define ALPHA_DISPLAY_CTRL_FIFO_1                     0
+#define ALPHA_DISPLAY_CTRL_FIFO_3                     1
+#define ALPHA_DISPLAY_CTRL_FIFO_7                     2
+#define ALPHA_DISPLAY_CTRL_FIFO_11                    3
+#define ALPHA_DISPLAY_CTRL_PIXEL                      7:4
+#define ALPHA_DISPLAY_CTRL_CHROMA_KEY                 3:3
+#define ALPHA_DISPLAY_CTRL_CHROMA_KEY_DISABLE         0
+#define ALPHA_DISPLAY_CTRL_CHROMA_KEY_ENABLE          1
+#define ALPHA_DISPLAY_CTRL_PLANE                      2:2
+#define ALPHA_DISPLAY_CTRL_PLANE_DISABLE              0
+#define ALPHA_DISPLAY_CTRL_PLANE_ENABLE               1
+#define ALPHA_DISPLAY_CTRL_FORMAT                     1:0
+#define ALPHA_DISPLAY_CTRL_FORMAT_16                  1
+#define ALPHA_DISPLAY_CTRL_FORMAT_ALPHA_4_4           2
+#define ALPHA_DISPLAY_CTRL_FORMAT_ALPHA_4_4_4_4       3
+
+#define ALPHA_FB_ADDRESS                              0x080104
+#define ALPHA_FB_ADDRESS_STATUS                       31:31
+#define ALPHA_FB_ADDRESS_STATUS_CURRENT               0
+#define ALPHA_FB_ADDRESS_STATUS_PENDING               1
+#define ALPHA_FB_ADDRESS_EXT                          27:27
+#define ALPHA_FB_ADDRESS_EXT_LOCAL                    0
+#define ALPHA_FB_ADDRESS_EXT_EXTERNAL                 1
+#define ALPHA_FB_ADDRESS_ADDRESS                      25:0
+
+#define ALPHA_FB_WIDTH                                0x080108
+#define ALPHA_FB_WIDTH_WIDTH                          29:16
+#define ALPHA_FB_WIDTH_OFFSET                         13:0
+
+#define ALPHA_PLANE_TL                                0x08010C
+#define ALPHA_PLANE_TL_TOP                            26:16
+#define ALPHA_PLANE_TL_LEFT                           10:0
+
+#define ALPHA_PLANE_BR                                0x080110
+#define ALPHA_PLANE_BR_BOTTOM                         26:16
+#define ALPHA_PLANE_BR_RIGHT                          10:0
+
+#define ALPHA_CHROMA_KEY                              0x080114
+#define ALPHA_CHROMA_KEY_MASK                         31:16
+#define ALPHA_CHROMA_KEY_VALUE                        15:0
+
+#define ALPHA_COLOR_LOOKUP_01                         0x080118
+#define ALPHA_COLOR_LOOKUP_01_1                       31:16
+#define ALPHA_COLOR_LOOKUP_01_1_RED                   31:27
+#define ALPHA_COLOR_LOOKUP_01_1_GREEN                 26:21
+#define ALPHA_COLOR_LOOKUP_01_1_BLUE                  20:16
+#define ALPHA_COLOR_LOOKUP_01_0                       15:0
+#define ALPHA_COLOR_LOOKUP_01_0_RED                   15:11
+#define ALPHA_COLOR_LOOKUP_01_0_GREEN                 10:5
+#define ALPHA_COLOR_LOOKUP_01_0_BLUE                  4:0
+
+#define ALPHA_COLOR_LOOKUP_23                         0x08011C
+#define ALPHA_COLOR_LOOKUP_23_3                       31:16
+#define ALPHA_COLOR_LOOKUP_23_3_RED                   31:27
+#define ALPHA_COLOR_LOOKUP_23_3_GREEN                 26:21
+#define ALPHA_COLOR_LOOKUP_23_3_BLUE                  20:16
+#define ALPHA_COLOR_LOOKUP_23_2                       15:0
+#define ALPHA_COLOR_LOOKUP_23_2_RED                   15:11
+#define ALPHA_COLOR_LOOKUP_23_2_GREEN                 10:5
+#define ALPHA_COLOR_LOOKUP_23_2_BLUE                  4:0
+
+#define ALPHA_COLOR_LOOKUP_45                         0x080120
+#define ALPHA_COLOR_LOOKUP_45_5                       31:16
+#define ALPHA_COLOR_LOOKUP_45_5_RED                   31:27
+#define ALPHA_COLOR_LOOKUP_45_5_GREEN                 26:21
+#define ALPHA_COLOR_LOOKUP_45_5_BLUE                  20:16
+#define ALPHA_COLOR_LOOKUP_45_4                       15:0
+#define ALPHA_COLOR_LOOKUP_45_4_RED                   15:11
+#define ALPHA_COLOR_LOOKUP_45_4_GREEN                 10:5
+#define ALPHA_COLOR_LOOKUP_45_4_BLUE                  4:0
+
+#define ALPHA_COLOR_LOOKUP_67                         0x080124
+#define ALPHA_COLOR_LOOKUP_67_7                       31:16
+#define ALPHA_COLOR_LOOKUP_67_7_RED                   31:27
+#define ALPHA_COLOR_LOOKUP_67_7_GREEN                 26:21
+#define ALPHA_COLOR_LOOKUP_67_7_BLUE                  20:16
+#define ALPHA_COLOR_LOOKUP_67_6                       15:0
+#define ALPHA_COLOR_LOOKUP_67_6_RED                   15:11
+#define ALPHA_COLOR_LOOKUP_67_6_GREEN                 10:5
+#define ALPHA_COLOR_LOOKUP_67_6_BLUE                  4:0
+
+#define ALPHA_COLOR_LOOKUP_89                         0x080128
+#define ALPHA_COLOR_LOOKUP_89_9                       31:16
+#define ALPHA_COLOR_LOOKUP_89_9_RED                   31:27
+#define ALPHA_COLOR_LOOKUP_89_9_GREEN                 26:21
+#define ALPHA_COLOR_LOOKUP_89_9_BLUE                  20:16
+#define ALPHA_COLOR_LOOKUP_89_8                       15:0
+#define ALPHA_COLOR_LOOKUP_89_8_RED                   15:11
+#define ALPHA_COLOR_LOOKUP_89_8_GREEN                 10:5
+#define ALPHA_COLOR_LOOKUP_89_8_BLUE                  4:0
+
+#define ALPHA_COLOR_LOOKUP_AB                         0x08012C
+#define ALPHA_COLOR_LOOKUP_AB_B                       31:16
+#define ALPHA_COLOR_LOOKUP_AB_B_RED                   31:27
+#define ALPHA_COLOR_LOOKUP_AB_B_GREEN                 26:21
+#define ALPHA_COLOR_LOOKUP_AB_B_BLUE                  20:16
+#define ALPHA_COLOR_LOOKUP_AB_A                       15:0
+#define ALPHA_COLOR_LOOKUP_AB_A_RED                   15:11
+#define ALPHA_COLOR_LOOKUP_AB_A_GREEN                 10:5
+#define ALPHA_COLOR_LOOKUP_AB_A_BLUE                  4:0
+
+#define ALPHA_COLOR_LOOKUP_CD                         0x080130
+#define ALPHA_COLOR_LOOKUP_CD_D                       31:16
+#define ALPHA_COLOR_LOOKUP_CD_D_RED                   31:27
+#define ALPHA_COLOR_LOOKUP_CD_D_GREEN                 26:21
+#define ALPHA_COLOR_LOOKUP_CD_D_BLUE                  20:16
+#define ALPHA_COLOR_LOOKUP_CD_C                       15:0
+#define ALPHA_COLOR_LOOKUP_CD_C_RED                   15:11
+#define ALPHA_COLOR_LOOKUP_CD_C_GREEN                 10:5
+#define ALPHA_COLOR_LOOKUP_CD_C_BLUE                  4:0
+
+#define ALPHA_COLOR_LOOKUP_EF                         0x080134
+#define ALPHA_COLOR_LOOKUP_EF_F                       31:16
+#define ALPHA_COLOR_LOOKUP_EF_F_RED                   31:27
+#define ALPHA_COLOR_LOOKUP_EF_F_GREEN                 26:21
+#define ALPHA_COLOR_LOOKUP_EF_F_BLUE                  20:16
+#define ALPHA_COLOR_LOOKUP_EF_E                       15:0
+#define ALPHA_COLOR_LOOKUP_EF_E_RED                   15:11
+#define ALPHA_COLOR_LOOKUP_EF_E_GREEN                 10:5
+#define ALPHA_COLOR_LOOKUP_EF_E_BLUE                  4:0
+
+/* CRT Graphics Control */
+
+#define CRT_DISPLAY_CTRL                              0x080200
+#define CRT_DISPLAY_CTRL_RESERVED_1_MASK  			  31:27
+#define CRT_DISPLAY_CTRL_RESERVED_1_MASK_DISABLE  			  0
+#define CRT_DISPLAY_CTRL_RESERVED_1_MASK_ENABLE 			  0x1F
+
+/* SM750LE definition */
+#define CRT_DISPLAY_CTRL_DPMS                         31:30
+#define CRT_DISPLAY_CTRL_DPMS_0                       0
+#define CRT_DISPLAY_CTRL_DPMS_1                       1
+#define CRT_DISPLAY_CTRL_DPMS_2                       2
+#define CRT_DISPLAY_CTRL_DPMS_3                       3
+#define CRT_DISPLAY_CTRL_CLK                          29:27
+#define CRT_DISPLAY_CTRL_CLK_PLL25                    0
+#define CRT_DISPLAY_CTRL_CLK_PLL41                    1
+#define CRT_DISPLAY_CTRL_CLK_PLL62                    2
+#define CRT_DISPLAY_CTRL_CLK_PLL65                    3
+#define CRT_DISPLAY_CTRL_CLK_PLL74                    4
+#define CRT_DISPLAY_CTRL_CLK_PLL80                    5
+#define CRT_DISPLAY_CTRL_CLK_PLL108                   6
+#define CRT_DISPLAY_CTRL_CLK_RESERVED                 7
+#define CRT_DISPLAY_CTRL_SHIFT_VGA_DAC                26:26
+#define CRT_DISPLAY_CTRL_SHIFT_VGA_DAC_DISABLE        1
+#define CRT_DISPLAY_CTRL_SHIFT_VGA_DAC_ENABLE         0
+
+
+#define CRT_DISPLAY_CTRL_RESERVED_2_MASK 			  25:24
+#define CRT_DISPLAY_CTRL_RESERVED_2_MASK_ENABLE 			  3
+#define CRT_DISPLAY_CTRL_RESERVED_2_MASK_DISABLE 			  0
+
+/* SM750LE definition */
+#define CRT_DISPLAY_CTRL_CRTSELECT                    25:25
+#define CRT_DISPLAY_CTRL_CRTSELECT_VGA                0
+#define CRT_DISPLAY_CTRL_CRTSELECT_CRT                1
+#define CRT_DISPLAY_CTRL_RGBBIT                       24:24
+#define CRT_DISPLAY_CTRL_RGBBIT_24BIT                 0
+#define CRT_DISPLAY_CTRL_RGBBIT_12BIT                 1
+
+
+#define CRT_DISPLAY_CTRL_RESERVED_3_MASK 			  15:15
+#define CRT_DISPLAY_CTRL_RESERVED_3_MASK_DISABLE      0
+#define CRT_DISPLAY_CTRL_RESERVED_3_MASK_ENABLE       1
+
+#define CRT_DISPLAY_CTRL_RESERVED_4_MASK 			  9:9
+#define CRT_DISPLAY_CTRL_RESERVED_4_MASK_DISABLE      0
+#define CRT_DISPLAY_CTRL_RESERVED_4_MASK_ENABLE       1
+
+#ifndef VALIDATION_CHIP
+    #define CRT_DISPLAY_CTRL_SHIFT_VGA_DAC            26:26
+    #define CRT_DISPLAY_CTRL_SHIFT_VGA_DAC_DISABLE    1
+    #define CRT_DISPLAY_CTRL_SHIFT_VGA_DAC_ENABLE     0
+    #define CRT_DISPLAY_CTRL_CENTERING                24:24
+    #define CRT_DISPLAY_CTRL_CENTERING_DISABLE        0
+    #define CRT_DISPLAY_CTRL_CENTERING_ENABLE         1
+#endif
+#define CRT_DISPLAY_CTRL_LOCK_TIMING                  23:23
+#define CRT_DISPLAY_CTRL_LOCK_TIMING_DISABLE          0
+#define CRT_DISPLAY_CTRL_LOCK_TIMING_ENABLE           1
+#define CRT_DISPLAY_CTRL_EXPANSION                    22:22
+#define CRT_DISPLAY_CTRL_EXPANSION_DISABLE            0
+#define CRT_DISPLAY_CTRL_EXPANSION_ENABLE             1
+#define CRT_DISPLAY_CTRL_VERTICAL_MODE                21:21
+#define CRT_DISPLAY_CTRL_VERTICAL_MODE_REPLICATE      0
+#define CRT_DISPLAY_CTRL_VERTICAL_MODE_INTERPOLATE    1
+#define CRT_DISPLAY_CTRL_HORIZONTAL_MODE              20:20
+#define CRT_DISPLAY_CTRL_HORIZONTAL_MODE_REPLICATE    0
+#define CRT_DISPLAY_CTRL_HORIZONTAL_MODE_INTERPOLATE  1
+#define CRT_DISPLAY_CTRL_SELECT                       19:18
+#define CRT_DISPLAY_CTRL_SELECT_PANEL                 0
+#define CRT_DISPLAY_CTRL_SELECT_VGA                   1
+#define CRT_DISPLAY_CTRL_SELECT_CRT                   2
+#define CRT_DISPLAY_CTRL_FIFO                         17:16
+#define CRT_DISPLAY_CTRL_FIFO_1                       0
+#define CRT_DISPLAY_CTRL_FIFO_3                       1
+#define CRT_DISPLAY_CTRL_FIFO_7                       2
+#define CRT_DISPLAY_CTRL_FIFO_11                      3
+#define CRT_DISPLAY_CTRL_CLOCK_PHASE                  14:14
+#define CRT_DISPLAY_CTRL_CLOCK_PHASE_ACTIVE_HIGH      0
+#define CRT_DISPLAY_CTRL_CLOCK_PHASE_ACTIVE_LOW       1
+#define CRT_DISPLAY_CTRL_VSYNC_PHASE                  13:13
+#define CRT_DISPLAY_CTRL_VSYNC_PHASE_ACTIVE_HIGH      0
+#define CRT_DISPLAY_CTRL_VSYNC_PHASE_ACTIVE_LOW       1
+#define CRT_DISPLAY_CTRL_HSYNC_PHASE                  12:12
+#define CRT_DISPLAY_CTRL_HSYNC_PHASE_ACTIVE_HIGH      0
+#define CRT_DISPLAY_CTRL_HSYNC_PHASE_ACTIVE_LOW       1
+#define CRT_DISPLAY_CTRL_BLANK                        10:10
+#define CRT_DISPLAY_CTRL_BLANK_OFF                    0
+#define CRT_DISPLAY_CTRL_BLANK_ON                     1
+#define CRT_DISPLAY_CTRL_TIMING                       8:8
+#define CRT_DISPLAY_CTRL_TIMING_DISABLE               0
+#define CRT_DISPLAY_CTRL_TIMING_ENABLE                1
+#define CRT_DISPLAY_CTRL_PIXEL                        7:4
+#define CRT_DISPLAY_CTRL_GAMMA                        3:3
+#define CRT_DISPLAY_CTRL_GAMMA_DISABLE                0
+#define CRT_DISPLAY_CTRL_GAMMA_ENABLE                 1
+#define CRT_DISPLAY_CTRL_PLANE                        2:2
+#define CRT_DISPLAY_CTRL_PLANE_DISABLE                0
+#define CRT_DISPLAY_CTRL_PLANE_ENABLE                 1
+#define CRT_DISPLAY_CTRL_FORMAT                       1:0
+#define CRT_DISPLAY_CTRL_FORMAT_8                     0
+#define CRT_DISPLAY_CTRL_FORMAT_16                    1
+#define CRT_DISPLAY_CTRL_FORMAT_32                    2
+#define CRT_DISPLAY_CTRL_RESERVED_BITS_MASK           0xFF000200
+
+#define CRT_FB_ADDRESS                                0x080204
+#define CRT_FB_ADDRESS_STATUS                         31:31
+#define CRT_FB_ADDRESS_STATUS_CURRENT                 0
+#define CRT_FB_ADDRESS_STATUS_PENDING                 1
+#define CRT_FB_ADDRESS_EXT                            27:27
+#define CRT_FB_ADDRESS_EXT_LOCAL                      0
+#define CRT_FB_ADDRESS_EXT_EXTERNAL                   1
+#define CRT_FB_ADDRESS_ADDRESS                        25:0
+
+#define CRT_FB_WIDTH                                  0x080208
+#define CRT_FB_WIDTH_WIDTH                            29:16
+#define CRT_FB_WIDTH_OFFSET                           13:0
+
+#define CRT_HORIZONTAL_TOTAL                          0x08020C
+#define CRT_HORIZONTAL_TOTAL_TOTAL                    27:16
+#define CRT_HORIZONTAL_TOTAL_DISPLAY_END              11:0
+
+#define CRT_HORIZONTAL_SYNC                           0x080210
+#define CRT_HORIZONTAL_SYNC_WIDTH                     23:16
+#define CRT_HORIZONTAL_SYNC_START                     11:0
+
+#define CRT_VERTICAL_TOTAL                            0x080214
+#define CRT_VERTICAL_TOTAL_TOTAL                      26:16
+#define CRT_VERTICAL_TOTAL_DISPLAY_END                10:0
+
+#define CRT_VERTICAL_SYNC                             0x080218
+#define CRT_VERTICAL_SYNC_HEIGHT                      21:16
+#define CRT_VERTICAL_SYNC_START                       10:0
+
+#define CRT_SIGNATURE_ANALYZER                        0x08021C
+#define CRT_SIGNATURE_ANALYZER_STATUS                 31:16
+#define CRT_SIGNATURE_ANALYZER_ENABLE                 3:3
+#define CRT_SIGNATURE_ANALYZER_ENABLE_DISABLE         0
+#define CRT_SIGNATURE_ANALYZER_ENABLE_ENABLE          1
+#define CRT_SIGNATURE_ANALYZER_RESET                  2:2
+#define CRT_SIGNATURE_ANALYZER_RESET_NORMAL           0
+#define CRT_SIGNATURE_ANALYZER_RESET_RESET            1
+#define CRT_SIGNATURE_ANALYZER_SOURCE                 1:0
+#define CRT_SIGNATURE_ANALYZER_SOURCE_RED             0
+#define CRT_SIGNATURE_ANALYZER_SOURCE_GREEN           1
+#define CRT_SIGNATURE_ANALYZER_SOURCE_BLUE            2
+
+#define CRT_CURRENT_LINE                              0x080220
+#define CRT_CURRENT_LINE_LINE                         10:0
+
+#define CRT_MONITOR_DETECT                            0x080224
+#define CRT_MONITOR_DETECT_VALUE                      25:25
+#define CRT_MONITOR_DETECT_VALUE_DISABLE              0
+#define CRT_MONITOR_DETECT_VALUE_ENABLE               1
+#define CRT_MONITOR_DETECT_ENABLE                     24:24
+#define CRT_MONITOR_DETECT_ENABLE_DISABLE             0
+#define CRT_MONITOR_DETECT_ENABLE_ENABLE              1
+#define CRT_MONITOR_DETECT_RED                        23:16
+#define CRT_MONITOR_DETECT_GREEN                      15:8
+#define CRT_MONITOR_DETECT_BLUE                       7:0
+
+#define CRT_SCALE                                     0x080228
+#define CRT_SCALE_VERTICAL_MODE                       31:31
+#define CRT_SCALE_VERTICAL_MODE_EXPAND                0
+#define CRT_SCALE_VERTICAL_MODE_SHRINK                1
+#define CRT_SCALE_VERTICAL_SCALE                      27:16
+#define CRT_SCALE_HORIZONTAL_MODE                     15:15
+#define CRT_SCALE_HORIZONTAL_MODE_EXPAND              0
+#define CRT_SCALE_HORIZONTAL_MODE_SHRINK              1
+#define CRT_SCALE_HORIZONTAL_SCALE                    11:0
+
+/* CRT Cursor Control */
+
+#define CRT_HWC_ADDRESS                               0x080230
+#define CRT_HWC_ADDRESS_ENABLE                        31:31
+#define CRT_HWC_ADDRESS_ENABLE_DISABLE                0
+#define CRT_HWC_ADDRESS_ENABLE_ENABLE                 1
+#define CRT_HWC_ADDRESS_EXT                           27:27
+#define CRT_HWC_ADDRESS_EXT_LOCAL                     0
+#define CRT_HWC_ADDRESS_EXT_EXTERNAL                  1
+#define CRT_HWC_ADDRESS_ADDRESS                       25:0
+
+#define CRT_HWC_LOCATION                              0x080234
+#define CRT_HWC_LOCATION_TOP                          27:27
+#define CRT_HWC_LOCATION_TOP_INSIDE                   0
+#define CRT_HWC_LOCATION_TOP_OUTSIDE                  1
+#define CRT_HWC_LOCATION_Y                            26:16
+#define CRT_HWC_LOCATION_LEFT                         11:11
+#define CRT_HWC_LOCATION_LEFT_INSIDE                  0
+#define CRT_HWC_LOCATION_LEFT_OUTSIDE                 1
+#define CRT_HWC_LOCATION_X                            10:0
+
+#define CRT_HWC_COLOR_12                              0x080238
+#define CRT_HWC_COLOR_12_2_RGB565                     31:16
+#define CRT_HWC_COLOR_12_1_RGB565                     15:0
+
+#define CRT_HWC_COLOR_3                               0x08023C
+#define CRT_HWC_COLOR_3_RGB565                        15:0
+
+/* Old Definitions +++. Need to be removed if no application use it. */
+#if 0
+    #define CRT_HWC_COLOR_01                          0x080238
+    #define CRT_HWC_COLOR_01_1_RED                    31:27
+    #define CRT_HWC_COLOR_01_1_GREEN                  26:21
+    #define CRT_HWC_COLOR_01_1_BLUE                   20:16
+    #define CRT_HWC_COLOR_01_0_RED                    15:11
+    #define CRT_HWC_COLOR_01_0_GREEN                  10:5
+    #define CRT_HWC_COLOR_01_0_BLUE                   4:0
+
+    #define CRT_HWC_COLOR_2                           0x08023C
+    #define CRT_HWC_COLOR_2_RED                       15:11
+    #define CRT_HWC_COLOR_2_GREEN                     10:5
+    #define CRT_HWC_COLOR_2_BLUE                      4:0
+#endif
+/* Old Definitions --- */
+
+/* This vertical expansion below start at 0x080240 ~ 0x080264 */
+#define CRT_VERTICAL_EXPANSION                        0x080240
+#ifndef VALIDATION_CHIP
+    #define CRT_VERTICAL_CENTERING_VALUE              31:24
+#endif
+#define CRT_VERTICAL_EXPANSION_COMPARE_VALUE          23:16
+#define CRT_VERTICAL_EXPANSION_LINE_BUFFER            15:12
+#define CRT_VERTICAL_EXPANSION_SCALE_FACTOR           11:0
+
+/* This horizontal expansion below start at 0x080268 ~ 0x08027C */
+#define CRT_HORIZONTAL_EXPANSION                      0x080268
+#ifndef VALIDATION_CHIP
+    #define CRT_HORIZONTAL_CENTERING_VALUE            31:24
+#endif
+#define CRT_HORIZONTAL_EXPANSION_COMPARE_VALUE        23:16
+#define CRT_HORIZONTAL_EXPANSION_SCALE_FACTOR         11:0
+
+#ifndef VALIDATION_CHIP
+    /* Auto Centering */
+    #define CRT_AUTO_CENTERING_TL                     0x080280
+    #define CRT_AUTO_CENTERING_TL_TOP                 26:16
+    #define CRT_AUTO_CENTERING_TL_LEFT                10:0
+
+    #define CRT_AUTO_CENTERING_BR                     0x080284
+    #define CRT_AUTO_CENTERING_BR_BOTTOM              26:16
+    #define CRT_AUTO_CENTERING_BR_RIGHT               10:0
+#endif
+
+/* sm750le new register to control panel output */
+#define DISPLAY_CONTROL_750LE 	0x80288
+/* Palette RAM */
+
+/* Panel Pallete register starts at 0x080400 ~ 0x0807FC */
+#define PANEL_PALETTE_RAM                             0x080400
+
+/* Panel Pallete register starts at 0x080C00 ~ 0x080FFC */
+#define CRT_PALETTE_RAM                               0x080C00
+
+/* 2D registers
+ * move their defination into general lynx_accel.h file
+ * because all smi graphic chip share the same drawing engine
+ * register format */
+#if 0
+#define DE_SOURCE                                       0x100000
+#define DE_SOURCE_WRAP                                  31:31
+#define DE_SOURCE_WRAP_DISABLE                          0
+#define DE_SOURCE_WRAP_ENABLE                           1
+
+/*
+ * The following definitions are used in different setting
+ */
+
+/* Use these definitions in XY addressing mode or linear addressing mode. */
+#define DE_SOURCE_X_K1                                  27:16
+#define DE_SOURCE_Y_K2                                  11:0
+
+/* Use this definition in host write mode for mono. The Y_K2 is not used
+   in host write mode. */
+#define DE_SOURCE_X_K1_MONO                             20:16
+
+/* Use these definitions in Bresenham line drawing mode. */
+#define DE_SOURCE_X_K1_LINE                             29:16
+#define DE_SOURCE_Y_K2_LINE                             13:0
+
+#define DE_DESTINATION                                  0x100004
+#define DE_DESTINATION_WRAP                             31:31
+#define DE_DESTINATION_WRAP_DISABLE                     0
+#define DE_DESTINATION_WRAP_ENABLE                      1
+#if 1
+    #define DE_DESTINATION_X                            27:16
+    #define DE_DESTINATION_Y                            11:0
+#else
+    #define DE_DESTINATION_X                            28:16
+    #define DE_DESTINATION_Y                            15:0
+#endif
+
+#define DE_DIMENSION                                    0x100008
+#define DE_DIMENSION_X                                  28:16
+#define DE_DIMENSION_Y_ET                               15:0
+
+#define DE_CONTROL                                      0x10000C
+#define DE_CONTROL_STATUS                               31:31
+#define DE_CONTROL_STATUS_STOP                          0
+#define DE_CONTROL_STATUS_START                         1
+#define DE_CONTROL_PATTERN                              30:30
+#define DE_CONTROL_PATTERN_MONO                         0
+#define DE_CONTROL_PATTERN_COLOR                        1
+#define DE_CONTROL_UPDATE_DESTINATION_X                 29:29
+#define DE_CONTROL_UPDATE_DESTINATION_X_DISABLE         0
+#define DE_CONTROL_UPDATE_DESTINATION_X_ENABLE          1
+#define DE_CONTROL_QUICK_START                          28:28
+#define DE_CONTROL_QUICK_START_DISABLE                  0
+#define DE_CONTROL_QUICK_START_ENABLE                   1
+#define DE_CONTROL_DIRECTION                            27:27
+#define DE_CONTROL_DIRECTION_LEFT_TO_RIGHT              0
+#define DE_CONTROL_DIRECTION_RIGHT_TO_LEFT              1
+#define DE_CONTROL_MAJOR                                26:26
+#define DE_CONTROL_MAJOR_X                              0
+#define DE_CONTROL_MAJOR_Y                              1
+#define DE_CONTROL_STEP_X                               25:25
+#define DE_CONTROL_STEP_X_POSITIVE                      0
+#define DE_CONTROL_STEP_X_NEGATIVE                      1
+#define DE_CONTROL_STEP_Y                               24:24
+#define DE_CONTROL_STEP_Y_POSITIVE                      0
+#define DE_CONTROL_STEP_Y_NEGATIVE                      1
+#define DE_CONTROL_STRETCH                              23:23
+#define DE_CONTROL_STRETCH_DISABLE                      0
+#define DE_CONTROL_STRETCH_ENABLE                       1
+#define DE_CONTROL_HOST                                 22:22
+#define DE_CONTROL_HOST_COLOR                           0
+#define DE_CONTROL_HOST_MONO                            1
+#define DE_CONTROL_LAST_PIXEL                           21:21
+#define DE_CONTROL_LAST_PIXEL_OFF                       0
+#define DE_CONTROL_LAST_PIXEL_ON                        1
+#define DE_CONTROL_COMMAND                              20:16
+#define DE_CONTROL_COMMAND_BITBLT                       0
+#define DE_CONTROL_COMMAND_RECTANGLE_FILL               1
+#define DE_CONTROL_COMMAND_DE_TILE                      2
+#define DE_CONTROL_COMMAND_TRAPEZOID_FILL               3
+#define DE_CONTROL_COMMAND_ALPHA_BLEND                  4
+#define DE_CONTROL_COMMAND_RLE_STRIP                    5
+#define DE_CONTROL_COMMAND_SHORT_STROKE                 6
+#define DE_CONTROL_COMMAND_LINE_DRAW                    7
+#define DE_CONTROL_COMMAND_HOST_WRITE                   8
+#define DE_CONTROL_COMMAND_HOST_READ                    9
+#define DE_CONTROL_COMMAND_HOST_WRITE_BOTTOM_UP         10
+#define DE_CONTROL_COMMAND_ROTATE                       11
+#define DE_CONTROL_COMMAND_FONT                         12
+#define DE_CONTROL_COMMAND_TEXTURE_LOAD                 15
+#define DE_CONTROL_ROP_SELECT                           15:15
+#define DE_CONTROL_ROP_SELECT_ROP3                      0
+#define DE_CONTROL_ROP_SELECT_ROP2                      1
+#define DE_CONTROL_ROP2_SOURCE                          14:14
+#define DE_CONTROL_ROP2_SOURCE_BITMAP                   0
+#define DE_CONTROL_ROP2_SOURCE_PATTERN                  1
+#define DE_CONTROL_MONO_DATA                            13:12
+#define DE_CONTROL_MONO_DATA_NOT_PACKED                 0
+#define DE_CONTROL_MONO_DATA_8_PACKED                   1
+#define DE_CONTROL_MONO_DATA_16_PACKED                  2
+#define DE_CONTROL_MONO_DATA_32_PACKED                  3
+#define DE_CONTROL_REPEAT_ROTATE                        11:11
+#define DE_CONTROL_REPEAT_ROTATE_DISABLE                0
+#define DE_CONTROL_REPEAT_ROTATE_ENABLE                 1
+#define DE_CONTROL_TRANSPARENCY_MATCH                   10:10
+#define DE_CONTROL_TRANSPARENCY_MATCH_OPAQUE            0
+#define DE_CONTROL_TRANSPARENCY_MATCH_TRANSPARENT       1
+#define DE_CONTROL_TRANSPARENCY_SELECT                  9:9
+#define DE_CONTROL_TRANSPARENCY_SELECT_SOURCE           0
+#define DE_CONTROL_TRANSPARENCY_SELECT_DESTINATION      1
+#define DE_CONTROL_TRANSPARENCY                         8:8
+#define DE_CONTROL_TRANSPARENCY_DISABLE                 0
+#define DE_CONTROL_TRANSPARENCY_ENABLE                  1
+#define DE_CONTROL_ROP                                  7:0
+
+/* Pseudo fields. */
+
+#define DE_CONTROL_SHORT_STROKE_DIR                     27:24
+#define DE_CONTROL_SHORT_STROKE_DIR_225                 0
+#define DE_CONTROL_SHORT_STROKE_DIR_135                 1
+#define DE_CONTROL_SHORT_STROKE_DIR_315                 2
+#define DE_CONTROL_SHORT_STROKE_DIR_45                  3
+#define DE_CONTROL_SHORT_STROKE_DIR_270                 4
+#define DE_CONTROL_SHORT_STROKE_DIR_90                  5
+#define DE_CONTROL_SHORT_STROKE_DIR_180                 8
+#define DE_CONTROL_SHORT_STROKE_DIR_0                   10
+#define DE_CONTROL_ROTATION                             25:24
+#define DE_CONTROL_ROTATION_0                           0
+#define DE_CONTROL_ROTATION_270                         1
+#define DE_CONTROL_ROTATION_90                          2
+#define DE_CONTROL_ROTATION_180                         3
+
+#define DE_PITCH                                        0x100010
+#define DE_PITCH_DESTINATION                            28:16
+#define DE_PITCH_SOURCE                                 12:0
+
+#define DE_FOREGROUND                                   0x100014
+#define DE_FOREGROUND_COLOR                             31:0
+
+#define DE_BACKGROUND                                   0x100018
+#define DE_BACKGROUND_COLOR                             31:0
+
+#define DE_STRETCH_FORMAT                               0x10001C
+#define DE_STRETCH_FORMAT_PATTERN_XY                    30:30
+#define DE_STRETCH_FORMAT_PATTERN_XY_NORMAL             0
+#define DE_STRETCH_FORMAT_PATTERN_XY_OVERWRITE          1
+#define DE_STRETCH_FORMAT_PATTERN_Y                     29:27
+#define DE_STRETCH_FORMAT_PATTERN_X                     25:23
+#define DE_STRETCH_FORMAT_PIXEL_FORMAT                  21:20
+#define DE_STRETCH_FORMAT_PIXEL_FORMAT_8                0
+#define DE_STRETCH_FORMAT_PIXEL_FORMAT_16               1
+#define DE_STRETCH_FORMAT_PIXEL_FORMAT_32               2
+#define DE_STRETCH_FORMAT_ADDRESSING                    19:16
+#define DE_STRETCH_FORMAT_ADDRESSING_XY                 0
+#define DE_STRETCH_FORMAT_ADDRESSING_LINEAR             15
+#define DE_STRETCH_FORMAT_SOURCE_HEIGHT                 11:0
+
+#define DE_COLOR_COMPARE                                0x100020
+#define DE_COLOR_COMPARE_COLOR                          23:0
+
+#define DE_COLOR_COMPARE_MASK                           0x100024
+#define DE_COLOR_COMPARE_MASK_MASKS                     23:0
+
+#define DE_MASKS                                        0x100028
+#define DE_MASKS_BYTE_MASK                              31:16
+#define DE_MASKS_BIT_MASK                               15:0
+
+#define DE_CLIP_TL                                      0x10002C
+#define DE_CLIP_TL_TOP                                  31:16
+#define DE_CLIP_TL_STATUS                               13:13
+#define DE_CLIP_TL_STATUS_DISABLE                       0
+#define DE_CLIP_TL_STATUS_ENABLE                        1
+#define DE_CLIP_TL_INHIBIT                              12:12
+#define DE_CLIP_TL_INHIBIT_OUTSIDE                      0
+#define DE_CLIP_TL_INHIBIT_INSIDE                       1
+#define DE_CLIP_TL_LEFT                                 11:0
+
+#define DE_CLIP_BR                                      0x100030
+#define DE_CLIP_BR_BOTTOM                               31:16
+#define DE_CLIP_BR_RIGHT                                12:0
+
+#define DE_MONO_PATTERN_LOW                             0x100034
+#define DE_MONO_PATTERN_LOW_PATTERN                     31:0
+
+#define DE_MONO_PATTERN_HIGH                            0x100038
+#define DE_MONO_PATTERN_HIGH_PATTERN                    31:0
+
+#define DE_WINDOW_WIDTH                                 0x10003C
+#define DE_WINDOW_WIDTH_DESTINATION                     28:16
+#define DE_WINDOW_WIDTH_SOURCE                          12:0
+
+#define DE_WINDOW_SOURCE_BASE                           0x100040
+#define DE_WINDOW_SOURCE_BASE_EXT                       27:27
+#define DE_WINDOW_SOURCE_BASE_EXT_LOCAL                 0
+#define DE_WINDOW_SOURCE_BASE_EXT_EXTERNAL              1
+#define DE_WINDOW_SOURCE_BASE_CS                        26:26
+#define DE_WINDOW_SOURCE_BASE_CS_0                      0
+#define DE_WINDOW_SOURCE_BASE_CS_1                      1
+#define DE_WINDOW_SOURCE_BASE_ADDRESS                   25:0
+
+#define DE_WINDOW_DESTINATION_BASE                      0x100044
+#define DE_WINDOW_DESTINATION_BASE_EXT                  27:27
+#define DE_WINDOW_DESTINATION_BASE_EXT_LOCAL            0
+#define DE_WINDOW_DESTINATION_BASE_EXT_EXTERNAL         1
+#define DE_WINDOW_DESTINATION_BASE_CS                   26:26
+#define DE_WINDOW_DESTINATION_BASE_CS_0                 0
+#define DE_WINDOW_DESTINATION_BASE_CS_1                 1
+#define DE_WINDOW_DESTINATION_BASE_ADDRESS              25:0
+
+#define DE_ALPHA                                        0x100048
+#define DE_ALPHA_VALUE                                  7:0
+
+#define DE_WRAP                                         0x10004C
+#define DE_WRAP_X                                       31:16
+#define DE_WRAP_Y                                       15:0
+
+#define DE_STATUS                                       0x100050
+#define DE_STATUS_CSC                                   1:1
+#define DE_STATUS_CSC_CLEAR                             0
+#define DE_STATUS_CSC_NOT_ACTIVE                        0
+#define DE_STATUS_CSC_ACTIVE                            1
+#define DE_STATUS_2D                                    0:0
+#define DE_STATUS_2D_CLEAR                              0
+#define DE_STATUS_2D_NOT_ACTIVE                         0
+#define DE_STATUS_2D_ACTIVE                             1
+#endif
+/* Color Space Conversion registers. */
+
+#define CSC_Y_SOURCE_BASE                               0x1000C8
+#define CSC_Y_SOURCE_BASE_EXT                           27:27
+#define CSC_Y_SOURCE_BASE_EXT_LOCAL                     0
+#define CSC_Y_SOURCE_BASE_EXT_EXTERNAL                  1
+#define CSC_Y_SOURCE_BASE_CS                            26:26
+#define CSC_Y_SOURCE_BASE_CS_0                          0
+#define CSC_Y_SOURCE_BASE_CS_1                          1
+#define CSC_Y_SOURCE_BASE_ADDRESS                       25:0
+
+#define CSC_CONSTANTS                                   0x1000CC
+#define CSC_CONSTANTS_Y                                 31:24
+#define CSC_CONSTANTS_R                                 23:16
+#define CSC_CONSTANTS_G                                 15:8
+#define CSC_CONSTANTS_B                                 7:0
+
+#define CSC_Y_SOURCE_X                                  0x1000D0
+#define CSC_Y_SOURCE_X_INTEGER                          26:16
+#define CSC_Y_SOURCE_X_FRACTION                         15:3
+
+#define CSC_Y_SOURCE_Y                                  0x1000D4
+#define CSC_Y_SOURCE_Y_INTEGER                          27:16
+#define CSC_Y_SOURCE_Y_FRACTION                         15:3
+
+#define CSC_U_SOURCE_BASE                               0x1000D8
+#define CSC_U_SOURCE_BASE_EXT                           27:27
+#define CSC_U_SOURCE_BASE_EXT_LOCAL                     0
+#define CSC_U_SOURCE_BASE_EXT_EXTERNAL                  1
+#define CSC_U_SOURCE_BASE_CS                            26:26
+#define CSC_U_SOURCE_BASE_CS_0                          0
+#define CSC_U_SOURCE_BASE_CS_1                          1
+#define CSC_U_SOURCE_BASE_ADDRESS                       25:0
+
+#define CSC_V_SOURCE_BASE                               0x1000DC
+#define CSC_V_SOURCE_BASE_EXT                           27:27
+#define CSC_V_SOURCE_BASE_EXT_LOCAL                     0
+#define CSC_V_SOURCE_BASE_EXT_EXTERNAL                  1
+#define CSC_V_SOURCE_BASE_CS                            26:26
+#define CSC_V_SOURCE_BASE_CS_0                          0
+#define CSC_V_SOURCE_BASE_CS_1                          1
+#define CSC_V_SOURCE_BASE_ADDRESS                       25:0
+
+#define CSC_SOURCE_DIMENSION                            0x1000E0
+#define CSC_SOURCE_DIMENSION_X                          31:16
+#define CSC_SOURCE_DIMENSION_Y                          15:0
+
+#define CSC_SOURCE_PITCH                                0x1000E4
+#define CSC_SOURCE_PITCH_Y                              31:16
+#define CSC_SOURCE_PITCH_UV                             15:0
+
+#define CSC_DESTINATION                                 0x1000E8
+#define CSC_DESTINATION_WRAP                            31:31
+#define CSC_DESTINATION_WRAP_DISABLE                    0
+#define CSC_DESTINATION_WRAP_ENABLE                     1
+#define CSC_DESTINATION_X                               27:16
+#define CSC_DESTINATION_Y                               11:0
+
+#define CSC_DESTINATION_DIMENSION                       0x1000EC
+#define CSC_DESTINATION_DIMENSION_X                     31:16
+#define CSC_DESTINATION_DIMENSION_Y                     15:0
+
+#define CSC_DESTINATION_PITCH                           0x1000F0
+#define CSC_DESTINATION_PITCH_X                         31:16
+#define CSC_DESTINATION_PITCH_Y                         15:0
+
+#define CSC_SCALE_FACTOR                                0x1000F4
+#define CSC_SCALE_FACTOR_HORIZONTAL                     31:16
+#define CSC_SCALE_FACTOR_VERTICAL                       15:0
+
+#define CSC_DESTINATION_BASE                            0x1000F8
+#define CSC_DESTINATION_BASE_EXT                        27:27
+#define CSC_DESTINATION_BASE_EXT_LOCAL                  0
+#define CSC_DESTINATION_BASE_EXT_EXTERNAL               1
+#define CSC_DESTINATION_BASE_CS                         26:26
+#define CSC_DESTINATION_BASE_CS_0                       0
+#define CSC_DESTINATION_BASE_CS_1                       1
+#define CSC_DESTINATION_BASE_ADDRESS                    25:0
+
+#define CSC_CONTROL                                     0x1000FC
+#define CSC_CONTROL_STATUS                              31:31
+#define CSC_CONTROL_STATUS_STOP                         0
+#define CSC_CONTROL_STATUS_START                        1
+#define CSC_CONTROL_SOURCE_FORMAT                       30:28
+#define CSC_CONTROL_SOURCE_FORMAT_YUV422                0
+#define CSC_CONTROL_SOURCE_FORMAT_YUV420I               1
+#define CSC_CONTROL_SOURCE_FORMAT_YUV420                2
+#define CSC_CONTROL_SOURCE_FORMAT_YVU9                  3
+#define CSC_CONTROL_SOURCE_FORMAT_IYU1                  4
+#define CSC_CONTROL_SOURCE_FORMAT_IYU2                  5
+#define CSC_CONTROL_SOURCE_FORMAT_RGB565                6
+#define CSC_CONTROL_SOURCE_FORMAT_RGB8888               7
+#define CSC_CONTROL_DESTINATION_FORMAT                  27:26
+#define CSC_CONTROL_DESTINATION_FORMAT_RGB565           0
+#define CSC_CONTROL_DESTINATION_FORMAT_RGB8888          1
+#define CSC_CONTROL_HORIZONTAL_FILTER                   25:25
+#define CSC_CONTROL_HORIZONTAL_FILTER_DISABLE           0
+#define CSC_CONTROL_HORIZONTAL_FILTER_ENABLE            1
+#define CSC_CONTROL_VERTICAL_FILTER                     24:24
+#define CSC_CONTROL_VERTICAL_FILTER_DISABLE             0
+#define CSC_CONTROL_VERTICAL_FILTER_ENABLE              1
+#define CSC_CONTROL_BYTE_ORDER                          23:23
+#define CSC_CONTROL_BYTE_ORDER_YUYV                     0
+#define CSC_CONTROL_BYTE_ORDER_UYVY                     1
+
+#define DE_DATA_PORT                                    0x110000
+
+#define I2C_BYTE_COUNT                                  0x010040
+#define I2C_BYTE_COUNT_COUNT                            3:0
+
+#define I2C_CTRL                                        0x010041
+#define I2C_CTRL_INT                                    4:4
+#define I2C_CTRL_INT_DISABLE                            0
+#define I2C_CTRL_INT_ENABLE                             1
+#define I2C_CTRL_DIR                                    3:3
+#define I2C_CTRL_DIR_WR                                 0
+#define I2C_CTRL_DIR_RD                                 1
+#define I2C_CTRL_CTRL                                   2:2
+#define I2C_CTRL_CTRL_STOP                              0
+#define I2C_CTRL_CTRL_START                             1
+#define I2C_CTRL_MODE                                   1:1
+#define I2C_CTRL_MODE_STANDARD                          0
+#define I2C_CTRL_MODE_FAST                              1
+#define I2C_CTRL_EN                                     0:0
+#define I2C_CTRL_EN_DISABLE                             0
+#define I2C_CTRL_EN_ENABLE                              1
+
+#define I2C_STATUS                                      0x010042
+#define I2C_STATUS_TX                                   3:3
+#define I2C_STATUS_TX_PROGRESS                          0
+#define I2C_STATUS_TX_COMPLETED                         1
+#define I2C_TX_DONE                                     0x08
+#define I2C_STATUS_ERR                                  2:2
+#define I2C_STATUS_ERR_NORMAL                           0
+#define I2C_STATUS_ERR_ERROR                            1
+#define I2C_STATUS_ERR_CLEAR                            0
+#define I2C_STATUS_ACK                                  1:1
+#define I2C_STATUS_ACK_RECEIVED                         0
+#define I2C_STATUS_ACK_NOT                              1
+#define I2C_STATUS_BSY                                  0:0
+#define I2C_STATUS_BSY_IDLE                             0
+#define I2C_STATUS_BSY_BUSY                             1
+
+#define I2C_RESET                                       0x010042
+#define I2C_RESET_BUS_ERROR                             2:2
+#define I2C_RESET_BUS_ERROR_CLEAR                       0
+
+#define I2C_SLAVE_ADDRESS                               0x010043
+#define I2C_SLAVE_ADDRESS_ADDRESS                       7:1
+#define I2C_SLAVE_ADDRESS_RW                            0:0
+#define I2C_SLAVE_ADDRESS_RW_W                          0
+#define I2C_SLAVE_ADDRESS_RW_R                          1
+
+#define I2C_DATA0                                       0x010044
+#define I2C_DATA1                                       0x010045
+#define I2C_DATA2                                       0x010046
+#define I2C_DATA3                                       0x010047
+#define I2C_DATA4                                       0x010048
+#define I2C_DATA5                                       0x010049
+#define I2C_DATA6                                       0x01004A
+#define I2C_DATA7                                       0x01004B
+#define I2C_DATA8                                       0x01004C
+#define I2C_DATA9                                       0x01004D
+#define I2C_DATA10                                      0x01004E
+#define I2C_DATA11                                      0x01004F
+#define I2C_DATA12                                      0x010050
+#define I2C_DATA13                                      0x010051
+#define I2C_DATA14                                      0x010052
+#define I2C_DATA15                                      0x010053
+
+
+#define ZV0_CAPTURE_CTRL                                0x090000
+#define ZV0_CAPTURE_CTRL_FIELD_INPUT                    27:27
+#define ZV0_CAPTURE_CTRL_FIELD_INPUT_EVEN_FIELD         0
+#define ZV0_CAPTURE_CTRL_FIELD_INPUT_ODD_FIELD          1
+#define ZV0_CAPTURE_CTRL_SCAN                           26:26
+#define ZV0_CAPTURE_CTRL_SCAN_PROGRESSIVE               0
+#define ZV0_CAPTURE_CTRL_SCAN_INTERLACE                 1
+#define ZV0_CAPTURE_CTRL_CURRENT_BUFFER                 25:25
+#define ZV0_CAPTURE_CTRL_CURRENT_BUFFER_0               0
+#define ZV0_CAPTURE_CTRL_CURRENT_BUFFER_1               1
+#define ZV0_CAPTURE_CTRL_VERTICAL_SYNC                  24:24
+#define ZV0_CAPTURE_CTRL_VERTICAL_SYNC_INACTIVE         0
+#define ZV0_CAPTURE_CTRL_VERTICAL_SYNC_ACTIVE           1
+#define ZV0_CAPTURE_CTRL_ADJ                            19:19
+#define ZV0_CAPTURE_CTRL_ADJ_NORMAL                     0
+#define ZV0_CAPTURE_CTRL_ADJ_DELAY                      1
+#define ZV0_CAPTURE_CTRL_HA                             18:18
+#define ZV0_CAPTURE_CTRL_HA_DISABLE                     0
+#define ZV0_CAPTURE_CTRL_HA_ENABLE                      1
+#define ZV0_CAPTURE_CTRL_VSK                            17:17
+#define ZV0_CAPTURE_CTRL_VSK_DISABLE                    0
+#define ZV0_CAPTURE_CTRL_VSK_ENABLE                     1
+#define ZV0_CAPTURE_CTRL_HSK                            16:16
+#define ZV0_CAPTURE_CTRL_HSK_DISABLE                    0
+#define ZV0_CAPTURE_CTRL_HSK_ENABLE                     1
+#define ZV0_CAPTURE_CTRL_FD                             15:15
+#define ZV0_CAPTURE_CTRL_FD_RISING                      0
+#define ZV0_CAPTURE_CTRL_FD_FALLING                     1
+#define ZV0_CAPTURE_CTRL_VP                             14:14
+#define ZV0_CAPTURE_CTRL_VP_HIGH                        0
+#define ZV0_CAPTURE_CTRL_VP_LOW                         1
+#define ZV0_CAPTURE_CTRL_HP                             13:13
+#define ZV0_CAPTURE_CTRL_HP_HIGH                        0
+#define ZV0_CAPTURE_CTRL_HP_LOW                         1
+#define ZV0_CAPTURE_CTRL_CP                             12:12
+#define ZV0_CAPTURE_CTRL_CP_HIGH                        0
+#define ZV0_CAPTURE_CTRL_CP_LOW                         1
+#define ZV0_CAPTURE_CTRL_UVS                            11:11
+#define ZV0_CAPTURE_CTRL_UVS_DISABLE                    0
+#define ZV0_CAPTURE_CTRL_UVS_ENABLE                     1
+#define ZV0_CAPTURE_CTRL_BS                             10:10
+#define ZV0_CAPTURE_CTRL_BS_DISABLE                     0
+#define ZV0_CAPTURE_CTRL_BS_ENABLE                      1
+#define ZV0_CAPTURE_CTRL_CS                             9:9
+#define ZV0_CAPTURE_CTRL_CS_16                          0
+#define ZV0_CAPTURE_CTRL_CS_8                           1
+#define ZV0_CAPTURE_CTRL_CF                             8:8
+#define ZV0_CAPTURE_CTRL_CF_YUV                         0
+#define ZV0_CAPTURE_CTRL_CF_RGB                         1
+#define ZV0_CAPTURE_CTRL_FS                             7:7
+#define ZV0_CAPTURE_CTRL_FS_DISABLE                     0
+#define ZV0_CAPTURE_CTRL_FS_ENABLE                      1
+#define ZV0_CAPTURE_CTRL_WEAVE                          6:6
+#define ZV0_CAPTURE_CTRL_WEAVE_DISABLE                  0
+#define ZV0_CAPTURE_CTRL_WEAVE_ENABLE                   1
+#define ZV0_CAPTURE_CTRL_BOB                            5:5
+#define ZV0_CAPTURE_CTRL_BOB_DISABLE                    0
+#define ZV0_CAPTURE_CTRL_BOB_ENABLE                     1
+#define ZV0_CAPTURE_CTRL_DB                             4:4
+#define ZV0_CAPTURE_CTRL_DB_DISABLE                     0
+#define ZV0_CAPTURE_CTRL_DB_ENABLE                      1
+#define ZV0_CAPTURE_CTRL_CC                             3:3
+#define ZV0_CAPTURE_CTRL_CC_CONTINUE                    0
+#define ZV0_CAPTURE_CTRL_CC_CONDITION                   1
+#define ZV0_CAPTURE_CTRL_RGB                            2:2
+#define ZV0_CAPTURE_CTRL_RGB_DISABLE                    0
+#define ZV0_CAPTURE_CTRL_RGB_ENABLE                     1
+#define ZV0_CAPTURE_CTRL_656                            1:1
+#define ZV0_CAPTURE_CTRL_656_DISABLE                    0
+#define ZV0_CAPTURE_CTRL_656_ENABLE                     1
+#define ZV0_CAPTURE_CTRL_CAP                            0:0
+#define ZV0_CAPTURE_CTRL_CAP_DISABLE                    0
+#define ZV0_CAPTURE_CTRL_CAP_ENABLE                     1
+
+#define ZV0_CAPTURE_CLIP                                0x090004
+#define ZV0_CAPTURE_CLIP_YCLIP_EVEN_FIELD                25:16
+#define ZV0_CAPTURE_CLIP_YCLIP                          25:16
+#define ZV0_CAPTURE_CLIP_XCLIP                          9:0
+
+#define ZV0_CAPTURE_SIZE                                0x090008
+#define ZV0_CAPTURE_SIZE_HEIGHT                         26:16
+#define ZV0_CAPTURE_SIZE_WIDTH                          10:0
+
+#define ZV0_CAPTURE_BUF0_ADDRESS                        0x09000C
+#define ZV0_CAPTURE_BUF0_ADDRESS_STATUS                 31:31
+#define ZV0_CAPTURE_BUF0_ADDRESS_STATUS_CURRENT         0
+#define ZV0_CAPTURE_BUF0_ADDRESS_STATUS_PENDING         1
+#define ZV0_CAPTURE_BUF0_ADDRESS_EXT                    27:27
+#define ZV0_CAPTURE_BUF0_ADDRESS_EXT_LOCAL              0
+#define ZV0_CAPTURE_BUF0_ADDRESS_EXT_EXTERNAL           1
+#define ZV0_CAPTURE_BUF0_ADDRESS_CS                     26:26
+#define ZV0_CAPTURE_BUF0_ADDRESS_CS_0                   0
+#define ZV0_CAPTURE_BUF0_ADDRESS_CS_1                   1
+#define ZV0_CAPTURE_BUF0_ADDRESS_ADDRESS                25:0
+
+#define ZV0_CAPTURE_BUF1_ADDRESS                        0x090010
+#define ZV0_CAPTURE_BUF1_ADDRESS_STATUS                 31:31
+#define ZV0_CAPTURE_BUF1_ADDRESS_STATUS_CURRENT         0
+#define ZV0_CAPTURE_BUF1_ADDRESS_STATUS_PENDING         1
+#define ZV0_CAPTURE_BUF1_ADDRESS_EXT                    27:27
+#define ZV0_CAPTURE_BUF1_ADDRESS_EXT_LOCAL              0
+#define ZV0_CAPTURE_BUF1_ADDRESS_EXT_EXTERNAL           1
+#define ZV0_CAPTURE_BUF1_ADDRESS_CS                     26:26
+#define ZV0_CAPTURE_BUF1_ADDRESS_CS_0                   0
+#define ZV0_CAPTURE_BUF1_ADDRESS_CS_1                   1
+#define ZV0_CAPTURE_BUF1_ADDRESS_ADDRESS                25:0
+
+#define ZV0_CAPTURE_BUF_OFFSET                          0x090014
+#ifndef VALIDATION_CHIP
+    #define ZV0_CAPTURE_BUF_OFFSET_YCLIP_ODD_FIELD      25:16
+#endif
+#define ZV0_CAPTURE_BUF_OFFSET_OFFSET                   15:0
+
+#define ZV0_CAPTURE_FIFO_CTRL                           0x090018
+#define ZV0_CAPTURE_FIFO_CTRL_FIFO                      2:0
+#define ZV0_CAPTURE_FIFO_CTRL_FIFO_0                    0
+#define ZV0_CAPTURE_FIFO_CTRL_FIFO_1                    1
+#define ZV0_CAPTURE_FIFO_CTRL_FIFO_2                    2
+#define ZV0_CAPTURE_FIFO_CTRL_FIFO_3                    3
+#define ZV0_CAPTURE_FIFO_CTRL_FIFO_4                    4
+#define ZV0_CAPTURE_FIFO_CTRL_FIFO_5                    5
+#define ZV0_CAPTURE_FIFO_CTRL_FIFO_6                    6
+#define ZV0_CAPTURE_FIFO_CTRL_FIFO_7                    7
+
+#define ZV0_CAPTURE_YRGB_CONST                          0x09001C
+#define ZV0_CAPTURE_YRGB_CONST_Y                        31:24
+#define ZV0_CAPTURE_YRGB_CONST_R                        23:16
+#define ZV0_CAPTURE_YRGB_CONST_G                        15:8
+#define ZV0_CAPTURE_YRGB_CONST_B                        7:0
+
+#define ZV0_CAPTURE_LINE_COMP                           0x090020
+#define ZV0_CAPTURE_LINE_COMP_LC                        10:0
+
+/* ZV1 */
+
+#define ZV1_CAPTURE_CTRL                                0x098000
+#define ZV1_CAPTURE_CTRL_FIELD_INPUT                    27:27
+#define ZV1_CAPTURE_CTRL_FIELD_INPUT_EVEN_FIELD         0
+#define ZV1_CAPTURE_CTRL_FIELD_INPUT_ODD_FIELD          0
+#define ZV1_CAPTURE_CTRL_SCAN                           26:26
+#define ZV1_CAPTURE_CTRL_SCAN_PROGRESSIVE               0
+#define ZV1_CAPTURE_CTRL_SCAN_INTERLACE                 1
+#define ZV1_CAPTURE_CTRL_CURRENT_BUFFER                 25:25
+#define ZV1_CAPTURE_CTRL_CURRENT_BUFFER_0               0
+#define ZV1_CAPTURE_CTRL_CURRENT_BUFFER_1               1
+#define ZV1_CAPTURE_CTRL_VERTICAL_SYNC                  24:24
+#define ZV1_CAPTURE_CTRL_VERTICAL_SYNC_INACTIVE         0
+#define ZV1_CAPTURE_CTRL_VERTICAL_SYNC_ACTIVE           1
+#define ZV1_CAPTURE_CTRL_PANEL                          20:20
+#define ZV1_CAPTURE_CTRL_PANEL_DISABLE                  0
+#define ZV1_CAPTURE_CTRL_PANEL_ENABLE                   1
+#define ZV1_CAPTURE_CTRL_ADJ                            19:19
+#define ZV1_CAPTURE_CTRL_ADJ_NORMAL                     0
+#define ZV1_CAPTURE_CTRL_ADJ_DELAY                      1
+#define ZV1_CAPTURE_CTRL_HA                             18:18
+#define ZV1_CAPTURE_CTRL_HA_DISABLE                     0
+#define ZV1_CAPTURE_CTRL_HA_ENABLE                      1
+#define ZV1_CAPTURE_CTRL_VSK                            17:17
+#define ZV1_CAPTURE_CTRL_VSK_DISABLE                    0
+#define ZV1_CAPTURE_CTRL_VSK_ENABLE                     1
+#define ZV1_CAPTURE_CTRL_HSK                            16:16
+#define ZV1_CAPTURE_CTRL_HSK_DISABLE                    0
+#define ZV1_CAPTURE_CTRL_HSK_ENABLE                     1
+#define ZV1_CAPTURE_CTRL_FD                             15:15
+#define ZV1_CAPTURE_CTRL_FD_RISING                      0
+#define ZV1_CAPTURE_CTRL_FD_FALLING                     1
+#define ZV1_CAPTURE_CTRL_VP                             14:14
+#define ZV1_CAPTURE_CTRL_VP_HIGH                        0
+#define ZV1_CAPTURE_CTRL_VP_LOW                         1
+#define ZV1_CAPTURE_CTRL_HP                             13:13
+#define ZV1_CAPTURE_CTRL_HP_HIGH                        0
+#define ZV1_CAPTURE_CTRL_HP_LOW                         1
+#define ZV1_CAPTURE_CTRL_CP                             12:12
+#define ZV1_CAPTURE_CTRL_CP_HIGH                        0
+#define ZV1_CAPTURE_CTRL_CP_LOW                         1
+#define ZV1_CAPTURE_CTRL_UVS                            11:11
+#define ZV1_CAPTURE_CTRL_UVS_DISABLE                    0
+#define ZV1_CAPTURE_CTRL_UVS_ENABLE                     1
+#define ZV1_CAPTURE_CTRL_BS                             10:10
+#define ZV1_CAPTURE_CTRL_BS_DISABLE                     0
+#define ZV1_CAPTURE_CTRL_BS_ENABLE                      1
+#define ZV1_CAPTURE_CTRL_CS                             9:9
+#define ZV1_CAPTURE_CTRL_CS_16                          0
+#define ZV1_CAPTURE_CTRL_CS_8                           1
+#define ZV1_CAPTURE_CTRL_CF                             8:8
+#define ZV1_CAPTURE_CTRL_CF_YUV                         0
+#define ZV1_CAPTURE_CTRL_CF_RGB                         1
+#define ZV1_CAPTURE_CTRL_FS                             7:7
+#define ZV1_CAPTURE_CTRL_FS_DISABLE                     0
+#define ZV1_CAPTURE_CTRL_FS_ENABLE                      1
+#define ZV1_CAPTURE_CTRL_WEAVE                          6:6
+#define ZV1_CAPTURE_CTRL_WEAVE_DISABLE                  0
+#define ZV1_CAPTURE_CTRL_WEAVE_ENABLE                   1
+#define ZV1_CAPTURE_CTRL_BOB                            5:5
+#define ZV1_CAPTURE_CTRL_BOB_DISABLE                    0
+#define ZV1_CAPTURE_CTRL_BOB_ENABLE                     1
+#define ZV1_CAPTURE_CTRL_DB                             4:4
+#define ZV1_CAPTURE_CTRL_DB_DISABLE                     0
+#define ZV1_CAPTURE_CTRL_DB_ENABLE                      1
+#define ZV1_CAPTURE_CTRL_CC                             3:3
+#define ZV1_CAPTURE_CTRL_CC_CONTINUE                    0
+#define ZV1_CAPTURE_CTRL_CC_CONDITION                   1
+#define ZV1_CAPTURE_CTRL_RGB                            2:2
+#define ZV1_CAPTURE_CTRL_RGB_DISABLE                    0
+#define ZV1_CAPTURE_CTRL_RGB_ENABLE                     1
+#define ZV1_CAPTURE_CTRL_656                            1:1
+#define ZV1_CAPTURE_CTRL_656_DISABLE                    0
+#define ZV1_CAPTURE_CTRL_656_ENABLE                     1
+#define ZV1_CAPTURE_CTRL_CAP                            0:0
+#define ZV1_CAPTURE_CTRL_CAP_DISABLE                    0
+#define ZV1_CAPTURE_CTRL_CAP_ENABLE                     1
+
+#define ZV1_CAPTURE_CLIP                                0x098004
+#define ZV1_CAPTURE_CLIP_YCLIP                          25:16
+#define ZV1_CAPTURE_CLIP_XCLIP                          9:0
+
+#define ZV1_CAPTURE_SIZE                                0x098008
+#define ZV1_CAPTURE_SIZE_HEIGHT                         26:16
+#define ZV1_CAPTURE_SIZE_WIDTH                          10:0
+
+#define ZV1_CAPTURE_BUF0_ADDRESS                        0x09800C
+#define ZV1_CAPTURE_BUF0_ADDRESS_STATUS                 31:31
+#define ZV1_CAPTURE_BUF0_ADDRESS_STATUS_CURRENT         0
+#define ZV1_CAPTURE_BUF0_ADDRESS_STATUS_PENDING         1
+#define ZV1_CAPTURE_BUF0_ADDRESS_EXT                    27:27
+#define ZV1_CAPTURE_BUF0_ADDRESS_EXT_LOCAL              0
+#define ZV1_CAPTURE_BUF0_ADDRESS_EXT_EXTERNAL           1
+#define ZV1_CAPTURE_BUF0_ADDRESS_CS                     26:26
+#define ZV1_CAPTURE_BUF0_ADDRESS_CS_0                   0
+#define ZV1_CAPTURE_BUF0_ADDRESS_CS_1                   1
+#define ZV1_CAPTURE_BUF0_ADDRESS_ADDRESS                25:0
+
+#define ZV1_CAPTURE_BUF1_ADDRESS                        0x098010
+#define ZV1_CAPTURE_BUF1_ADDRESS_STATUS                 31:31
+#define ZV1_CAPTURE_BUF1_ADDRESS_STATUS_CURRENT         0
+#define ZV1_CAPTURE_BUF1_ADDRESS_STATUS_PENDING         1
+#define ZV1_CAPTURE_BUF1_ADDRESS_EXT                    27:27
+#define ZV1_CAPTURE_BUF1_ADDRESS_EXT_LOCAL              0
+#define ZV1_CAPTURE_BUF1_ADDRESS_EXT_EXTERNAL           1
+#define ZV1_CAPTURE_BUF1_ADDRESS_CS                     26:26
+#define ZV1_CAPTURE_BUF1_ADDRESS_CS_0                   0
+#define ZV1_CAPTURE_BUF1_ADDRESS_CS_1                   1
+#define ZV1_CAPTURE_BUF1_ADDRESS_ADDRESS                25:0
+
+#define ZV1_CAPTURE_BUF_OFFSET                          0x098014
+#define ZV1_CAPTURE_BUF_OFFSET_OFFSET                   15:0
+
+#define ZV1_CAPTURE_FIFO_CTRL                           0x098018
+#define ZV1_CAPTURE_FIFO_CTRL_FIFO                      2:0
+#define ZV1_CAPTURE_FIFO_CTRL_FIFO_0                    0
+#define ZV1_CAPTURE_FIFO_CTRL_FIFO_1                    1
+#define ZV1_CAPTURE_FIFO_CTRL_FIFO_2                    2
+#define ZV1_CAPTURE_FIFO_CTRL_FIFO_3                    3
+#define ZV1_CAPTURE_FIFO_CTRL_FIFO_4                    4
+#define ZV1_CAPTURE_FIFO_CTRL_FIFO_5                    5
+#define ZV1_CAPTURE_FIFO_CTRL_FIFO_6                    6
+#define ZV1_CAPTURE_FIFO_CTRL_FIFO_7                    7
+
+#define ZV1_CAPTURE_YRGB_CONST                          0x09801C
+#define ZV1_CAPTURE_YRGB_CONST_Y                        31:24
+#define ZV1_CAPTURE_YRGB_CONST_R                        23:16
+#define ZV1_CAPTURE_YRGB_CONST_G                        15:8
+#define ZV1_CAPTURE_YRGB_CONST_B                        7:0
+
+#define DMA_1_SOURCE                                    0x0D0010
+#define DMA_1_SOURCE_ADDRESS_EXT                        27:27
+#define DMA_1_SOURCE_ADDRESS_EXT_LOCAL                  0
+#define DMA_1_SOURCE_ADDRESS_EXT_EXTERNAL               1
+#define DMA_1_SOURCE_ADDRESS_CS                         26:26
+#define DMA_1_SOURCE_ADDRESS_CS_0                       0
+#define DMA_1_SOURCE_ADDRESS_CS_1                       1
+#define DMA_1_SOURCE_ADDRESS                            25:0
+
+#define DMA_1_DESTINATION                               0x0D0014
+#define DMA_1_DESTINATION_ADDRESS_EXT                   27:27
+#define DMA_1_DESTINATION_ADDRESS_EXT_LOCAL             0
+#define DMA_1_DESTINATION_ADDRESS_EXT_EXTERNAL          1
+#define DMA_1_DESTINATION_ADDRESS_CS                    26:26
+#define DMA_1_DESTINATION_ADDRESS_CS_0                  0
+#define DMA_1_DESTINATION_ADDRESS_CS_1                  1
+#define DMA_1_DESTINATION_ADDRESS                       25:0
+
+#define DMA_1_SIZE_CONTROL                              0x0D0018
+#define DMA_1_SIZE_CONTROL_STATUS                       31:31
+#define DMA_1_SIZE_CONTROL_STATUS_IDLE                  0
+#define DMA_1_SIZE_CONTROL_STATUS_ACTIVE                1
+#define DMA_1_SIZE_CONTROL_SIZE                         23:0
+
+#define DMA_ABORT_INTERRUPT                             0x0D0020
+#define DMA_ABORT_INTERRUPT_ABORT_1                     5:5
+#define DMA_ABORT_INTERRUPT_ABORT_1_ENABLE              0
+#define DMA_ABORT_INTERRUPT_ABORT_1_ABORT               1
+#define DMA_ABORT_INTERRUPT_ABORT_0                     4:4
+#define DMA_ABORT_INTERRUPT_ABORT_0_ENABLE              0
+#define DMA_ABORT_INTERRUPT_ABORT_0_ABORT               1
+#define DMA_ABORT_INTERRUPT_INT_1                       1:1
+#define DMA_ABORT_INTERRUPT_INT_1_CLEAR                 0
+#define DMA_ABORT_INTERRUPT_INT_1_FINISHED              1
+#define DMA_ABORT_INTERRUPT_INT_0                       0:0
+#define DMA_ABORT_INTERRUPT_INT_0_CLEAR                 0
+#define DMA_ABORT_INTERRUPT_INT_0_FINISHED              1
+
+
+
+
+
+/* Default i2c CLK and Data GPIO. These are the default i2c pins */
+#define DEFAULT_I2C_SCL                     30
+#define DEFAULT_I2C_SDA                     31
+
+
+#define GPIO_DATA_SM750LE                               0x020018
+#define GPIO_DATA_SM750LE_1                             1:1
+#define GPIO_DATA_SM750LE_0                             0:0
+
+#define GPIO_DATA_DIRECTION_SM750LE                     0x02001C
+#define GPIO_DATA_DIRECTION_SM750LE_1                   1:1
+#define GPIO_DATA_DIRECTION_SM750LE_1_INPUT             0
+#define GPIO_DATA_DIRECTION_SM750LE_1_OUTPUT            1
+#define GPIO_DATA_DIRECTION_SM750LE_0                   0:0
+#define GPIO_DATA_DIRECTION_SM750LE_0_INPUT             0
+#define GPIO_DATA_DIRECTION_SM750LE_0_OUTPUT            1
+
+
+#endif
diff --git a/drivers/staging/sm750fb/ddk750_sii164.c b/drivers/staging/sm750fb/ddk750_sii164.c
new file mode 100644
index 0000000..3d224d6
--- /dev/null
+++ b/drivers/staging/sm750fb/ddk750_sii164.c
@@ -0,0 +1,425 @@
+#define USE_DVICHIP
+#ifdef USE_DVICHIP
+
+#include "ddk750_sii164.h"
+#include "ddk750_hwi2c.h"
+
+/* I2C Address of each SII164 chip */
+#define SII164_I2C_ADDRESS                  0x70
+
+/* Define this definition to use hardware i2c. */
+#define USE_HW_I2C
+
+#ifdef USE_HW_I2C
+    #define i2cWriteReg hwI2CWriteReg
+    #define i2cReadReg  hwI2CReadReg
+#else
+    #define i2cWriteReg swI2CWriteReg
+    #define i2cReadReg  swI2CReadReg
+#endif
+
+/* SII164 Vendor and Device ID */
+#define SII164_VENDOR_ID                    0x0001
+#define SII164_DEVICE_ID                    0x0006
+
+#ifdef SII164_FULL_FUNCTIONS
+/* Name of the DVI Controller chip */
+static char *gDviCtrlChipName = "Silicon Image SiI 164";
+#endif
+
+/*
+ *  sii164GetVendorID
+ *      This function gets the vendor ID of the DVI controller chip.
+ *
+ *  Output:
+ *      Vendor ID
+ */
+unsigned short sii164GetVendorID(void)
+{
+    unsigned short vendorID;
+
+    vendorID = ((unsigned short) i2cReadReg(SII164_I2C_ADDRESS, SII164_VENDOR_ID_HIGH) << 8) |
+                (unsigned short) i2cReadReg(SII164_I2C_ADDRESS, SII164_VENDOR_ID_LOW);
+
+    return vendorID;
+}
+
+/*
+ *  sii164GetDeviceID
+ *      This function gets the device ID of the DVI controller chip.
+ *
+ *  Output:
+ *      Device ID
+ */
+unsigned short sii164GetDeviceID(void)
+{
+    unsigned short deviceID;
+
+    deviceID = ((unsigned short) i2cReadReg(SII164_I2C_ADDRESS, SII164_DEVICE_ID_HIGH) << 8) |
+                (unsigned short) i2cReadReg(SII164_I2C_ADDRESS, SII164_DEVICE_ID_LOW);
+
+    return deviceID;
+}
+
+
+
+/* DVI.C will handle all SiI164 chip stuffs and try it best to make code minimal and useful */
+
+/*
+ *  sii164InitChip
+ *      This function initialize and detect the DVI controller chip.
+ *
+ *  Input:
+ *      edgeSelect          - Edge Select:
+ *                              0 = Input data is falling edge latched (falling edge
+ *                                  latched first in dual edge mode)
+ *                              1 = Input data is rising edge latched (rising edge
+ *                                  latched first in dual edge mode)
+ *      busSelect           - Input Bus Select:
+ *                              0 = Input data bus is 12-bits wide
+ *                              1 = Input data bus is 24-bits wide
+ *      dualEdgeClkSelect   - Dual Edge Clock Select
+ *                              0 = Input data is single edge latched
+ *                              1 = Input data is dual edge latched
+ *      hsyncEnable         - Horizontal Sync Enable:
+ *                              0 = HSYNC input is transmitted as fixed LOW
+ *                              1 = HSYNC input is transmitted as is
+ *      vsyncEnable         - Vertical Sync Enable:
+ *                              0 = VSYNC input is transmitted as fixed LOW
+ *                              1 = VSYNC input is transmitted as is
+ *      deskewEnable        - De-skewing Enable:
+ *                              0 = De-skew disabled
+ *                              1 = De-skew enabled
+ *      deskewSetting       - De-skewing Setting (increment of 260psec)
+ *                              0 = 1 step --> minimum setup / maximum hold
+ *                              1 = 2 step
+ *                              2 = 3 step
+ *                              3 = 4 step
+ *                              4 = 5 step
+ *                              5 = 6 step
+ *                              6 = 7 step
+ *                              7 = 8 step --> maximum setup / minimum hold
+ *      continuousSyncEnable- SYNC Continuous:
+ *                              0 = Disable
+ *                              1 = Enable
+ *      pllFilterEnable     - PLL Filter Enable
+ *                              0 = Disable PLL Filter
+ *                              1 = Enable PLL Filter
+ *      pllFilterValue      - PLL Filter characteristics:
+ *                              0~7 (recommended value is 4)
+ *
+ *  Output:
+ *      0   - Success
+ *     -1   - Fail.
+ */
+long sii164InitChip(
+    unsigned char edgeSelect,
+    unsigned char busSelect,
+    unsigned char dualEdgeClkSelect,
+    unsigned char hsyncEnable,
+    unsigned char vsyncEnable,
+    unsigned char deskewEnable,
+    unsigned char deskewSetting,
+    unsigned char continuousSyncEnable,
+    unsigned char pllFilterEnable,
+    unsigned char pllFilterValue
+)
+{
+    //unsigned char ucRegIndex, ucRegValue;
+    //unsigned char ucDeviceAddress,
+	unsigned char config;
+    //unsigned long delayCount;
+
+    /* Initialize the i2c bus */
+#ifdef USE_HW_I2C
+    /* Use fast mode. */
+    hwI2CInit(1);
+#else
+    swI2CInit(DEFAULT_I2C_SCL, DEFAULT_I2C_SDA);
+#endif
+
+    /* Check if SII164 Chip exists */
+    if ((sii164GetVendorID() == SII164_VENDOR_ID) && (sii164GetDeviceID() == SII164_DEVICE_ID))
+    {
+
+#ifdef DDKDEBUG
+        //sii164PrintRegisterValues();
+#endif
+        /*
+         *  Initialize SII164 controller chip.
+         */
+
+        /* Select the edge */
+        if (edgeSelect == 0)
+            config = SII164_CONFIGURATION_LATCH_FALLING;
+        else
+            config = SII164_CONFIGURATION_LATCH_RISING;
+
+        /* Select bus wide */
+        if (busSelect == 0)
+            config |= SII164_CONFIGURATION_BUS_12BITS;
+        else
+            config |= SII164_CONFIGURATION_BUS_24BITS;
+
+        /* Select Dual/Single Edge Clock */
+        if (dualEdgeClkSelect == 0)
+            config |= SII164_CONFIGURATION_CLOCK_SINGLE;
+        else
+            config |= SII164_CONFIGURATION_CLOCK_DUAL;
+
+        /* Select HSync Enable */
+        if (hsyncEnable == 0)
+            config |= SII164_CONFIGURATION_HSYNC_FORCE_LOW;
+        else
+            config |= SII164_CONFIGURATION_HSYNC_AS_IS;
+
+        /* Select VSync Enable */
+        if (vsyncEnable == 0)
+            config |= SII164_CONFIGURATION_VSYNC_FORCE_LOW;
+        else
+            config |= SII164_CONFIGURATION_VSYNC_AS_IS;
+
+        i2cWriteReg(SII164_I2C_ADDRESS, SII164_CONFIGURATION, config);
+
+        /* De-skew enabled with default 111b value.
+           This will fix some artifacts problem in some mode on board 2.2.
+           Somehow this fix does not affect board 2.1.
+         */
+        if (deskewEnable == 0)
+            config = SII164_DESKEW_DISABLE;
+        else
+            config = SII164_DESKEW_ENABLE;
+
+        switch (deskewSetting)
+        {
+            case 0:
+                config |= SII164_DESKEW_1_STEP;
+                break;
+            case 1:
+                config |= SII164_DESKEW_2_STEP;
+                break;
+            case 2:
+                config |= SII164_DESKEW_3_STEP;
+                break;
+            case 3:
+                config |= SII164_DESKEW_4_STEP;
+                break;
+            case 4:
+                config |= SII164_DESKEW_5_STEP;
+                break;
+            case 5:
+                config |= SII164_DESKEW_6_STEP;
+                break;
+            case 6:
+                config |= SII164_DESKEW_7_STEP;
+                break;
+            case 7:
+                config |= SII164_DESKEW_8_STEP;
+                break;
+        }
+        i2cWriteReg(SII164_I2C_ADDRESS, SII164_DESKEW, config);
+
+        /* Enable/Disable Continuous Sync. */
+        if (continuousSyncEnable == 0)
+            config = SII164_PLL_FILTER_SYNC_CONTINUOUS_DISABLE;
+        else
+            config = SII164_PLL_FILTER_SYNC_CONTINUOUS_ENABLE;
+
+        /* Enable/Disable PLL Filter */
+        if (pllFilterEnable == 0)
+            config |= SII164_PLL_FILTER_DISABLE;
+        else
+            config |= SII164_PLL_FILTER_ENABLE;
+
+        /* Set the PLL Filter value */
+        config |= ((pllFilterValue & 0x07) << 1);
+
+        i2cWriteReg(SII164_I2C_ADDRESS, SII164_PLL, config);
+
+        /* Recover from Power Down and enable output. */
+        config = i2cReadReg(SII164_I2C_ADDRESS, SII164_CONFIGURATION);
+        config |= SII164_CONFIGURATION_POWER_NORMAL;
+        i2cWriteReg(SII164_I2C_ADDRESS, SII164_CONFIGURATION, config);
+
+#ifdef DDKDEBUG
+        //sii164PrintRegisterValues();
+#endif
+
+        return 0;
+    }
+
+    /* Return -1 if initialization fails. */
+    return (-1);
+}
+
+
+
+
+
+/* below sii164 function is not neccessary */
+
+#ifdef SII164_FULL_FUNCTIONS
+
+/*
+ *  sii164ResetChip
+ *      This function resets the DVI Controller Chip.
+ */
+void sii164ResetChip(void)
+{
+    /* Power down */
+    sii164SetPower(0);
+    sii164SetPower(1);
+}
+
+
+/*
+ * sii164GetChipString
+ *      This function returns a char string name of the current DVI Controller chip.
+ *      It's convenient for application need to display the chip name.
+ */
+char *sii164GetChipString(void)
+{
+    return gDviCtrlChipName;
+}
+
+
+/*
+ *  sii164SetPower
+ *      This function sets the power configuration of the DVI Controller Chip.
+ *
+ *  Input:
+ *      powerUp - Flag to set the power down or up
+ */
+void sii164SetPower(
+    unsigned char powerUp
+)
+{
+    unsigned char config;
+
+    config = i2cReadReg(SII164_I2C_ADDRESS, SII164_CONFIGURATION);
+    if (powerUp == 1)
+    {
+        /* Power up the chip */
+        config &= ~SII164_CONFIGURATION_POWER_MASK;
+        config |= SII164_CONFIGURATION_POWER_NORMAL;
+        i2cWriteReg(SII164_I2C_ADDRESS, SII164_CONFIGURATION, config);
+    }
+    else
+    {
+        /* Power down the chip */
+        config &= ~SII164_CONFIGURATION_POWER_MASK;
+        config |= SII164_CONFIGURATION_POWER_DOWN;
+        i2cWriteReg(SII164_I2C_ADDRESS, SII164_CONFIGURATION, config);
+    }
+}
+
+
+/*
+ *  sii164SelectHotPlugDetectionMode
+ *      This function selects the mode of the hot plug detection.
+ */
+static void sii164SelectHotPlugDetectionMode(
+    sii164_hot_plug_mode_t hotPlugMode
+)
+{
+    unsigned char detectReg;
+
+    detectReg = i2cReadReg(SII164_I2C_ADDRESS, SII164_DETECT) & ~SII164_DETECT_MONITOR_SENSE_OUTPUT_FLAG;
+    switch (hotPlugMode)
+    {
+        case SII164_HOTPLUG_DISABLE:
+            detectReg |= SII164_DETECT_MONITOR_SENSE_OUTPUT_HIGH;
+            break;
+        case SII164_HOTPLUG_USE_MDI:
+            detectReg &= ~SII164_DETECT_INTERRUPT_MASK;
+            detectReg |= SII164_DETECT_INTERRUPT_BY_HTPLG_PIN;
+            detectReg |= SII164_DETECT_MONITOR_SENSE_OUTPUT_MDI;
+            break;
+        case SII164_HOTPLUG_USE_RSEN:
+            detectReg |= SII164_DETECT_MONITOR_SENSE_OUTPUT_RSEN;
+            break;
+        case SII164_HOTPLUG_USE_HTPLG:
+            detectReg |= SII164_DETECT_MONITOR_SENSE_OUTPUT_HTPLG;
+            break;
+    }
+
+    i2cWriteReg(SII164_I2C_ADDRESS, SII164_DETECT, detectReg);
+}
+
+/*
+ *  sii164EnableHotPlugDetection
+ *      This function enables the Hot Plug detection.
+ *
+ *  enableHotPlug   - Enable (=1) / disable (=0) Hot Plug detection
+ */
+void sii164EnableHotPlugDetection(
+    unsigned char enableHotPlug
+)
+{
+    unsigned char detectReg;
+    detectReg = i2cReadReg(SII164_I2C_ADDRESS, SII164_DETECT);
+
+    /* Depending on each DVI controller, need to enable the hot plug based on each
+       individual chip design. */
+    if (enableHotPlug != 0)
+        sii164SelectHotPlugDetectionMode(SII164_HOTPLUG_USE_MDI);
+    else
+        sii164SelectHotPlugDetectionMode(SII164_HOTPLUG_DISABLE);
+}
+
+/*
+ *  sii164IsConnected
+ *      Check if the DVI Monitor is connected.
+ *
+ *  Output:
+ *      0   - Not Connected
+ *      1   - Connected
+ */
+unsigned char sii164IsConnected(void)
+{
+    unsigned char hotPlugValue;
+
+    hotPlugValue = i2cReadReg(SII164_I2C_ADDRESS, SII164_DETECT) & SII164_DETECT_HOT_PLUG_STATUS_MASK;
+    if (hotPlugValue == SII164_DETECT_HOT_PLUG_STATUS_ON)
+        return 1;
+    else
+        return 0;
+}
+
+/*
+ *  sii164CheckInterrupt
+ *      Checks if interrupt has occured.
+ *
+ *  Output:
+ *      0   - No interrupt
+ *      1   - Interrupt occurs
+ */
+unsigned char sii164CheckInterrupt(void)
+{
+    unsigned char detectReg;
+
+    detectReg = i2cReadReg(SII164_I2C_ADDRESS, SII164_DETECT) & SII164_DETECT_MONITOR_STATE_MASK;
+    if (detectReg == SII164_DETECT_MONITOR_STATE_CHANGE)
+        return 1;
+    else
+        return 0;
+}
+
+/*
+ *  sii164ClearInterrupt
+ *      Clear the hot plug interrupt.
+ */
+void sii164ClearInterrupt(void)
+{
+    unsigned char detectReg;
+
+    /* Clear the MDI interrupt */
+    detectReg = i2cReadReg(SII164_I2C_ADDRESS, SII164_DETECT);
+    i2cWriteReg(SII164_I2C_ADDRESS, SII164_DETECT, detectReg | SII164_DETECT_MONITOR_STATE_CLEAR);
+}
+
+#endif
+
+#endif
+
+
diff --git a/drivers/staging/sm750fb/ddk750_sii164.h b/drivers/staging/sm750fb/ddk750_sii164.h
new file mode 100644
index 0000000..2b4c7d3
--- /dev/null
+++ b/drivers/staging/sm750fb/ddk750_sii164.h
@@ -0,0 +1,172 @@
+#ifndef DDK750_SII164_H__
+#define DDK750_SII164_H__
+
+#define USE_DVICHIP
+
+/* Hot Plug detection mode structure */
+typedef enum _sii164_hot_plug_mode_t
+{
+    SII164_HOTPLUG_DISABLE = 0,         /* Disable Hot Plug output bit (always high). */
+    SII164_HOTPLUG_USE_MDI,             /* Use Monitor Detect Interrupt bit. */
+    SII164_HOTPLUG_USE_RSEN,            /* Use Receiver Sense detect bit. */
+    SII164_HOTPLUG_USE_HTPLG            /* Use Hot Plug detect bit. */
+} sii164_hot_plug_mode_t;
+
+
+/* Silicon Image SiI164 chip prototype */
+long sii164InitChip(
+    unsigned char edgeSelect,
+    unsigned char busSelect,
+    unsigned char dualEdgeClkSelect,
+    unsigned char hsyncEnable,
+    unsigned char vsyncEnable,
+    unsigned char deskewEnable,
+    unsigned char deskewSetting,
+    unsigned char continuousSyncEnable,
+    unsigned char pllFilterEnable,
+    unsigned char pllFilterValue
+);
+
+unsigned short sii164GetVendorID(void);
+unsigned short sii164GetDeviceID(void);
+
+
+#ifdef SII164_FULL_FUNCTIONS
+void sii164ResetChip(void);
+char *sii164GetChipString(void);
+void sii164SetPower(unsigned char powerUp);
+void sii164EnableHotPlugDetection(unsigned char enableHotPlug);
+unsigned char sii164IsConnected(void);
+unsigned char sii164CheckInterrupt(void);
+void sii164ClearInterrupt(void);
+#endif
+/* below register definination is used for Silicon Image SiI164 DVI controller chip */
+/*
+ * Vendor ID registers
+ */
+#define SII164_VENDOR_ID_LOW                        0x00
+#define SII164_VENDOR_ID_HIGH                       0x01
+
+/*
+ * Device ID registers
+ */
+#define SII164_DEVICE_ID_LOW                        0x02
+#define SII164_DEVICE_ID_HIGH                       0x03
+
+/*
+ * Device Revision
+ */
+#define SII164_DEVICE_REVISION                      0x04
+
+/*
+ * Frequency Limitation registers
+ */
+#define SII164_FREQUENCY_LIMIT_LOW                  0x06
+#define SII164_FREQUENCY_LIMIT_HIGH                 0x07
+
+/*
+ * Power Down and Input Signal Configuration registers
+ */
+#define SII164_CONFIGURATION                        0x08
+
+/* Power down (PD) */
+#define SII164_CONFIGURATION_POWER_DOWN             0x00
+#define SII164_CONFIGURATION_POWER_NORMAL           0x01
+#define SII164_CONFIGURATION_POWER_MASK             0x01
+
+/* Input Edge Latch Select (EDGE) */
+#define SII164_CONFIGURATION_LATCH_FALLING          0x00
+#define SII164_CONFIGURATION_LATCH_RISING           0x02
+
+/* Bus Select (BSEL) */
+#define SII164_CONFIGURATION_BUS_12BITS             0x00
+#define SII164_CONFIGURATION_BUS_24BITS             0x04
+
+/* Dual Edge Clock Select (DSEL) */
+#define SII164_CONFIGURATION_CLOCK_SINGLE           0x00
+#define SII164_CONFIGURATION_CLOCK_DUAL             0x08
+
+/* Horizontal Sync Enable (HEN) */
+#define SII164_CONFIGURATION_HSYNC_FORCE_LOW        0x00
+#define SII164_CONFIGURATION_HSYNC_AS_IS            0x10
+
+/* Vertical Sync Enable (VEN) */
+#define SII164_CONFIGURATION_VSYNC_FORCE_LOW        0x00
+#define SII164_CONFIGURATION_VSYNC_AS_IS            0x20
+
+/*
+ * Detection registers
+ */
+#define SII164_DETECT                               0x09
+
+/* Monitor Detect Interrupt (MDI) */
+#define SII164_DETECT_MONITOR_STATE_CHANGE          0x00
+#define SII164_DETECT_MONITOR_STATE_NO_CHANGE       0x01
+#define SII164_DETECT_MONITOR_STATE_CLEAR           0x01
+#define SII164_DETECT_MONITOR_STATE_MASK            0x01
+
+/* Hot Plug detect Input (HTPLG) */
+#define SII164_DETECT_HOT_PLUG_STATUS_OFF           0x00
+#define SII164_DETECT_HOT_PLUG_STATUS_ON            0x02
+#define SII164_DETECT_HOT_PLUG_STATUS_MASK          0x02
+
+/* Receiver Sense (RSEN) */
+#define SII164_DETECT_RECEIVER_SENSE_NOT_DETECTED   0x00
+#define SII164_DETECT_RECEIVER_SENSE_DETECTED       0x04
+
+/* Interrupt Generation Method (TSEL) */
+#define SII164_DETECT_INTERRUPT_BY_RSEN_PIN         0x00
+#define SII164_DETECT_INTERRUPT_BY_HTPLG_PIN        0x08
+#define SII164_DETECT_INTERRUPT_MASK                0x08
+
+/* Monitor Sense Output (MSEN) */
+#define SII164_DETECT_MONITOR_SENSE_OUTPUT_HIGH     0x00
+#define SII164_DETECT_MONITOR_SENSE_OUTPUT_MDI      0x10
+#define SII164_DETECT_MONITOR_SENSE_OUTPUT_RSEN     0x20
+#define SII164_DETECT_MONITOR_SENSE_OUTPUT_HTPLG    0x30
+#define SII164_DETECT_MONITOR_SENSE_OUTPUT_FLAG     0x30
+
+/*
+ * Skewing registers
+ */
+#define SII164_DESKEW                               0x0A
+
+/* General Purpose Input (CTL[3:1]) */
+#define SII164_DESKEW_GENERAL_PURPOSE_INPUT_MASK    0x0E
+
+/* De-skewing Enable bit (DKEN) */
+#define SII164_DESKEW_DISABLE                       0x00
+#define SII164_DESKEW_ENABLE                        0x10
+
+/* De-skewing Setting (DK[3:1])*/
+#define SII164_DESKEW_1_STEP                        0x00
+#define SII164_DESKEW_2_STEP                        0x20
+#define SII164_DESKEW_3_STEP                        0x40
+#define SII164_DESKEW_4_STEP                        0x60
+#define SII164_DESKEW_5_STEP                        0x80
+#define SII164_DESKEW_6_STEP                        0xA0
+#define SII164_DESKEW_7_STEP                        0xC0
+#define SII164_DESKEW_8_STEP                        0xE0
+
+/*
+ * User Configuration Data registers (CFG 7:0)
+ */
+#define SII164_USER_CONFIGURATION                   0x0B
+
+/*
+ * PLL registers
+ */
+#define SII164_PLL                                  0x0C
+
+/* PLL Filter Value (PLLF) */
+#define SII164_PLL_FILTER_VALUE_MASK                0x0E
+
+/* PLL Filter Enable (PFEN) */
+#define SII164_PLL_FILTER_DISABLE                   0x00
+#define SII164_PLL_FILTER_ENABLE                    0x01
+
+/* Sync Continuous (SCNT) */
+#define SII164_PLL_FILTER_SYNC_CONTINUOUS_DISABLE   0x00
+#define SII164_PLL_FILTER_SYNC_CONTINUOUS_ENABLE    0x80
+
+#endif
diff --git a/drivers/staging/sm750fb/ddk750_swi2c.c b/drivers/staging/sm750fb/ddk750_swi2c.c
new file mode 100644
index 0000000..901b373
--- /dev/null
+++ b/drivers/staging/sm750fb/ddk750_swi2c.c
@@ -0,0 +1,522 @@
+/*******************************************************************
+*
+*         Copyright (c) 2007 by Silicon Motion, Inc. (SMI)
+*
+*  All rights are reserved. Reproduction or in part is prohibited
+*  without the written consent of the copyright owner.
+*
+*  swi2c.c --- SM750/SM718 DDK
+*  This file contains the source code for I2C using software
+*  implementation.
+*
+*******************************************************************/
+#include "ddk750_help.h"
+#include "ddk750_reg.h"
+#include "ddk750_swi2c.h"
+#include "ddk750_power.h"
+
+
+/*******************************************************************
+ * I2C Software Master Driver:
+ * ===========================
+ * Each i2c cycle is split into 4 sections. Each of these section marks
+ * a point in time where the SCL or SDA may be changed.
+ *
+ * 1 Cycle == |  Section I. |  Section 2. |  Section 3. |  Section 4. |
+ *            +-------------+-------------+-------------+-------------+
+ *            | SCL set LOW |SCL no change| SCL set HIGH|SCL no change|
+ *
+ *                                          ____________ _____________
+ * SCL == XXXX _____________ ____________ /
+ *
+ * I.e. the SCL may only be changed in section 1. and section 3. while
+ * the SDA may only be changed in section 2. and section 4. The table
+ * below gives the changes for these 2 lines in the varios sections.
+ *
+ * Section changes Table:
+ * ======================
+ * blank = no change, L = set bit LOW, H = set bit HIGH
+ *
+ *                                | 1.| 2.| 3.| 4.|
+ *                 ---------------+---+---+---+---+
+ *                 Tx Start   SDA |   | H |   | L |
+ *                            SCL | L |   | H |   |
+ *                 ---------------+---+---+---+---+
+ *                 Tx Stop    SDA |   | L |   | H |
+ *                            SCL | L |   | H |   |
+ *                 ---------------+---+---+---+---+
+ *                 Tx bit H   SDA |   | H |   |   |
+ *                            SCL | L |   | H |   |
+ *                 ---------------+---+---+---+---+
+ *                 Tx bit L   SDA |   | L |   |   |
+ *                            SCL | L |   | H |   |
+ *                 ---------------+---+---+---+---+
+ *
+ ******************************************************************/
+
+/* GPIO pins used for this I2C. It ranges from 0 to 63. */
+static unsigned char g_i2cClockGPIO = DEFAULT_I2C_SCL;
+static unsigned char g_i2cDataGPIO = DEFAULT_I2C_SDA;
+
+/*
+ *  Below is the variable declaration for the GPIO pin register usage
+ *  for the i2c Clock and i2c Data.
+ *
+ *  Note:
+ *      Notice that the GPIO usage for the i2c clock and i2c Data are
+ *      separated. This is to make this code flexible enough when
+ *      two separate GPIO pins for the clock and data are located
+ *      in two different GPIO register set (worst case).
+ */
+
+/* i2c Clock GPIO Register usage */
+static unsigned long g_i2cClkGPIOMuxReg = GPIO_MUX;
+static unsigned long g_i2cClkGPIODataReg = GPIO_DATA;
+static unsigned long g_i2cClkGPIODataDirReg = GPIO_DATA_DIRECTION;
+
+/* i2c Data GPIO Register usage */
+static unsigned long g_i2cDataGPIOMuxReg = GPIO_MUX;
+static unsigned long g_i2cDataGPIODataReg = GPIO_DATA;
+static unsigned long g_i2cDataGPIODataDirReg = GPIO_DATA_DIRECTION;
+
+/*
+ *  This function puts a delay between command
+ */
+static void swI2CWait(void)
+{
+	/* find a bug:
+	 * peekIO method works well before suspend/resume
+	 * but after suspend, peekIO(0x3ce,0x61) & 0x10
+	 * always be non-zero,which makes the while loop
+	 * never finish.
+	 * use non-ultimate for loop below is safe
+	 * */
+#if 0
+    /* Change wait algorithm to use PCI bus clock,
+       it's more reliable than counter loop ..
+       write 0x61 to 0x3ce and read from 0x3cf
+       */
+	while(peekIO(0x3ce,0x61) & 0x10);
+#else
+    int i, Temp;
+
+    for(i=0; i<600; i++)
+    {
+        Temp = i;
+        Temp += i;
+    }
+#endif
+}
+
+/*
+ *  This function set/reset the SCL GPIO pin
+ *
+ *  Parameters:
+ *      value    - Bit value to set to the SCL or SDA (0 = low, 1 = high)
+ *
+ *  Notes:
+ *      When setting SCL to high, just set the GPIO as input where the pull up
+ *      resistor will pull the signal up. Do not use software to pull up the
+ *      signal because the i2c will fail when other device try to drive the
+ *      signal due to SM50x will drive the signal to always high.
+ */
+void swI2CSCL(unsigned char value)
+{
+    unsigned long ulGPIOData;
+    unsigned long ulGPIODirection;
+
+    ulGPIODirection = PEEK32(g_i2cClkGPIODataDirReg);
+    if (value)      /* High */
+    {
+        /* Set direction as input. This will automatically pull the signal up. */
+        ulGPIODirection &= ~(1 << g_i2cClockGPIO);
+        POKE32(g_i2cClkGPIODataDirReg, ulGPIODirection);
+    }
+    else            /* Low */
+    {
+        /* Set the signal down */
+        ulGPIOData = PEEK32(g_i2cClkGPIODataReg);
+        ulGPIOData &= ~(1 << g_i2cClockGPIO);
+        POKE32(g_i2cClkGPIODataReg, ulGPIOData);
+
+        /* Set direction as output */
+        ulGPIODirection |= (1 << g_i2cClockGPIO);
+        POKE32(g_i2cClkGPIODataDirReg, ulGPIODirection);
+    }
+}
+
+/*
+ *  This function set/reset the SDA GPIO pin
+ *
+ *  Parameters:
+ *      value    - Bit value to set to the SCL or SDA (0 = low, 1 = high)
+ *
+ *  Notes:
+ *      When setting SCL to high, just set the GPIO as input where the pull up
+ *      resistor will pull the signal up. Do not use software to pull up the
+ *      signal because the i2c will fail when other device try to drive the
+ *      signal due to SM50x will drive the signal to always high.
+ */
+void swI2CSDA(unsigned char value)
+{
+    unsigned long ulGPIOData;
+    unsigned long ulGPIODirection;
+
+    ulGPIODirection = PEEK32(g_i2cDataGPIODataDirReg);
+    if (value)      /* High */
+    {
+        /* Set direction as input. This will automatically pull the signal up. */
+        ulGPIODirection &= ~(1 << g_i2cDataGPIO);
+        POKE32(g_i2cDataGPIODataDirReg, ulGPIODirection);
+    }
+    else            /* Low */
+    {
+        /* Set the signal down */
+        ulGPIOData = PEEK32(g_i2cDataGPIODataReg);
+        ulGPIOData &= ~(1 << g_i2cDataGPIO);
+        POKE32(g_i2cDataGPIODataReg, ulGPIOData);
+
+        /* Set direction as output */
+        ulGPIODirection |= (1 << g_i2cDataGPIO);
+        POKE32(g_i2cDataGPIODataDirReg, ulGPIODirection);
+    }
+}
+
+/*
+ *  This function read the data from the SDA GPIO pin
+ *
+ *  Return Value:
+ *      The SDA data bit sent by the Slave
+ */
+static unsigned char swI2CReadSDA(void)
+{
+    unsigned long ulGPIODirection;
+    unsigned long ulGPIOData;
+
+    /* Make sure that the direction is input (High) */
+    ulGPIODirection = PEEK32(g_i2cDataGPIODataDirReg);
+    if ((ulGPIODirection & (1 << g_i2cDataGPIO)) != (~(1 << g_i2cDataGPIO)))
+    {
+        ulGPIODirection &= ~(1 << g_i2cDataGPIO);
+        POKE32(g_i2cDataGPIODataDirReg, ulGPIODirection);
+    }
+
+    /* Now read the SDA line */
+    ulGPIOData = PEEK32(g_i2cDataGPIODataReg);
+    if (ulGPIOData & (1 << g_i2cDataGPIO))
+        return 1;
+    else
+        return 0;
+}
+
+/*
+ *  This function sends ACK signal
+ */
+static void swI2CAck(void)
+{
+    return;  /* Single byte read is ok without it. */
+}
+
+/*
+ *  This function sends the start command to the slave device
+ */
+static void swI2CStart(void)
+{
+    /* Start I2C */
+    swI2CSDA(1);
+    swI2CSCL(1);
+    swI2CSDA(0);
+}
+
+/*
+ *  This function sends the stop command to the slave device
+ */
+static void swI2CStop(void)
+{
+    /* Stop the I2C */
+    swI2CSCL(1);
+    swI2CSDA(0);
+    swI2CSDA(1);
+}
+
+/*
+ *  This function writes one byte to the slave device
+ *
+ *  Parameters:
+ *      data    - Data to be write to the slave device
+ *
+ *  Return Value:
+ *       0   - Success
+ *      -1   - Fail to write byte
+ */
+static long swI2CWriteByte(unsigned char data)
+{
+    unsigned char value = data;
+    int i;
+
+    /* Sending the data bit by bit */
+    for (i=0; i<8; i++)
+    {
+        /* Set SCL to low */
+        swI2CSCL(0);
+
+        /* Send data bit */
+        if ((value & 0x80) != 0)
+            swI2CSDA(1);
+        else
+            swI2CSDA(0);
+
+        swI2CWait();
+
+        /* Toggle clk line to one */
+        swI2CSCL(1);
+        swI2CWait();
+
+        /* Shift byte to be sent */
+        value = value << 1;
+    }
+
+    /* Set the SCL Low and SDA High (prepare to get input) */
+    swI2CSCL(0);
+    swI2CSDA(1);
+
+    /* Set the SCL High for ack */
+    swI2CWait();
+    swI2CSCL(1);
+    swI2CWait();
+
+    /* Read SDA, until SDA==0 */
+    for(i=0; i<0xff; i++)
+    {
+        if (!swI2CReadSDA())
+            break;
+
+        swI2CSCL(0);
+        swI2CWait();
+        swI2CSCL(1);
+        swI2CWait();
+    }
+
+    /* Set the SCL Low and SDA High */
+    swI2CSCL(0);
+    swI2CSDA(1);
+
+    if (i<0xff)
+        return 0;
+    else
+        return -1;
+}
+
+/*
+ *  This function reads one byte from the slave device
+ *
+ *  Parameters:
+ *      ack    - Flag to indicate either to send the acknowledge
+ *            message to the slave device or not
+ *
+ *  Return Value:
+ *      One byte data read from the Slave device
+ */
+static unsigned char swI2CReadByte(unsigned char ack)
+{
+    int i;
+    unsigned char data = 0;
+
+    for(i=7; i>=0; i--)
+    {
+        /* Set the SCL to Low and SDA to High (Input) */
+        swI2CSCL(0);
+        swI2CSDA(1);
+        swI2CWait();
+
+        /* Set the SCL High */
+        swI2CSCL(1);
+        swI2CWait();
+
+        /* Read data bits from SDA */
+        data |= (swI2CReadSDA() << i);
+    }
+
+    if (ack)
+        swI2CAck();
+
+    /* Set the SCL Low and SDA High */
+    swI2CSCL(0);
+    swI2CSDA(1);
+
+    return data;
+}
+
+/*
+ * This function initializes GPIO port for SW I2C communication.
+ *
+ * Parameters:
+ *      i2cClkGPIO      - The GPIO pin to be used as i2c SCL
+ *      i2cDataGPIO     - The GPIO pin to be used as i2c SDA
+ *
+ * Return Value:
+ *      -1   - Fail to initialize the i2c
+ *       0   - Success
+ */
+static long swI2CInit_SM750LE(unsigned char i2cClkGPIO,
+			      unsigned char i2cDataGPIO)
+{
+    int i;
+
+    /* Initialize the GPIO pin for the i2c Clock Register */
+    g_i2cClkGPIODataReg = GPIO_DATA_SM750LE;
+    g_i2cClkGPIODataDirReg = GPIO_DATA_DIRECTION_SM750LE;
+
+    /* Initialize the Clock GPIO Offset */
+    g_i2cClockGPIO = i2cClkGPIO;
+
+    /* Initialize the GPIO pin for the i2c Data Register */
+    g_i2cDataGPIODataReg = GPIO_DATA_SM750LE;
+    g_i2cDataGPIODataDirReg = GPIO_DATA_DIRECTION_SM750LE;
+
+    /* Initialize the Data GPIO Offset */
+    g_i2cDataGPIO = i2cDataGPIO;
+
+    /* Note that SM750LE don't have GPIO MUX and power is always on */
+
+    /* Clear the i2c lines. */
+    for(i=0; i<9; i++)
+        swI2CStop();
+
+    return 0;
+}
+
+/*
+ * This function initializes the i2c attributes and bus
+ *
+ * Parameters:
+ *      i2cClkGPIO      - The GPIO pin to be used as i2c SCL
+ *      i2cDataGPIO     - The GPIO pin to be used as i2c SDA
+ *
+ * Return Value:
+ *      -1   - Fail to initialize the i2c
+ *       0   - Success
+ */
+long swI2CInit(
+    unsigned char i2cClkGPIO,
+    unsigned char i2cDataGPIO
+)
+{
+    int i;
+
+    /* Return 0 if the GPIO pins to be used is out of range. The range is only from [0..63] */
+    if ((i2cClkGPIO > 31) || (i2cDataGPIO > 31))
+        return -1;
+
+    if (getChipType() == SM750LE)
+        return swI2CInit_SM750LE(i2cClkGPIO, i2cDataGPIO);
+
+    /* Initialize the GPIO pin for the i2c Clock Register */
+    g_i2cClkGPIOMuxReg = GPIO_MUX;
+    g_i2cClkGPIODataReg = GPIO_DATA;
+    g_i2cClkGPIODataDirReg = GPIO_DATA_DIRECTION;
+
+    /* Initialize the Clock GPIO Offset */
+    g_i2cClockGPIO = i2cClkGPIO;
+
+    /* Initialize the GPIO pin for the i2c Data Register */
+    g_i2cDataGPIOMuxReg = GPIO_MUX;
+    g_i2cDataGPIODataReg = GPIO_DATA;
+    g_i2cDataGPIODataDirReg = GPIO_DATA_DIRECTION;
+
+    /* Initialize the Data GPIO Offset */
+    g_i2cDataGPIO = i2cDataGPIO;
+
+    /* Enable the GPIO pins for the i2c Clock and Data (GPIO MUX) */
+    POKE32(g_i2cClkGPIOMuxReg,
+                      PEEK32(g_i2cClkGPIOMuxReg) & ~(1 << g_i2cClockGPIO));
+    POKE32(g_i2cDataGPIOMuxReg,
+                      PEEK32(g_i2cDataGPIOMuxReg) & ~(1 << g_i2cDataGPIO));
+
+    /* Enable GPIO power */
+    enableGPIO(1);
+
+    /* Clear the i2c lines. */
+    for(i=0; i<9; i++)
+        swI2CStop();
+
+    return 0;
+}
+
+/*
+ *  This function reads the slave device's register
+ *
+ *  Parameters:
+ *      deviceAddress   - i2c Slave device address which register
+ *                        to be read from
+ *      registerIndex   - Slave device's register to be read
+ *
+ *  Return Value:
+ *      Register value
+ */
+unsigned char swI2CReadReg(
+    unsigned char deviceAddress,
+    unsigned char registerIndex
+)
+{
+    unsigned char data;
+
+    /* Send the Start signal */
+    swI2CStart();
+
+    /* Send the device address */
+    swI2CWriteByte(deviceAddress);
+
+    /* Send the register index */
+    swI2CWriteByte(registerIndex);
+
+    /* Get the bus again and get the data from the device read address */
+    swI2CStart();
+    swI2CWriteByte(deviceAddress + 1);
+    data = swI2CReadByte(1);
+
+    /* Stop swI2C and release the bus */
+    swI2CStop();
+
+    return data;
+}
+
+/*
+ *  This function writes a value to the slave device's register
+ *
+ *  Parameters:
+ *      deviceAddress   - i2c Slave device address which register
+ *                        to be written
+ *      registerIndex   - Slave device's register to be written
+ *      data            - Data to be written to the register
+ *
+ *  Result:
+ *          0   - Success
+ *         -1   - Fail
+ */
+long swI2CWriteReg(
+    unsigned char deviceAddress,
+    unsigned char registerIndex,
+    unsigned char data
+)
+{
+    long returnValue = 0;
+
+    /* Send the Start signal */
+    swI2CStart();
+
+    /* Send the device address and read the data. All should return success
+       in order for the writing processed to be successful
+     */
+    if ((swI2CWriteByte(deviceAddress) != 0) ||
+        (swI2CWriteByte(registerIndex) != 0) ||
+        (swI2CWriteByte(data) != 0))
+    {
+        returnValue = -1;
+    }
+
+    /* Stop i2c and release the bus */
+    swI2CStop();
+
+    return returnValue;
+}
diff --git a/drivers/staging/sm750fb/ddk750_swi2c.h b/drivers/staging/sm750fb/ddk750_swi2c.h
new file mode 100644
index 0000000..ec5463b
--- /dev/null
+++ b/drivers/staging/sm750fb/ddk750_swi2c.h
@@ -0,0 +1,92 @@
+/*******************************************************************
+*
+*         Copyright (c) 2007 by Silicon Motion, Inc. (SMI)
+*
+*  All rights are reserved. Reproduction or in part is prohibited
+*  without the written consent of the copyright owner.
+*
+*  swi2c.h --- SM750/SM718 DDK
+*  This file contains the definitions for i2c using software
+*  implementation.
+*
+*******************************************************************/
+#ifndef _SWI2C_H_
+#define _SWI2C_H_
+
+/* Default i2c CLK and Data GPIO. These are the default i2c pins */
+#define DEFAULT_I2C_SCL                     30
+#define DEFAULT_I2C_SDA                     31
+
+/*
+ * This function initializes the i2c attributes and bus
+ *
+ * Parameters:
+ *      i2cClkGPIO  - The GPIO pin to be used as i2c SCL
+ *      i2cDataGPIO - The GPIO pin to be used as i2c SDA
+ *
+ * Return Value:
+ *      -1   - Fail to initialize the i2c
+ *       0   - Success
+ */
+long swI2CInit(
+    unsigned char i2cClkGPIO,
+    unsigned char i2cDataGPIO
+);
+
+/*
+ *  This function reads the slave device's register
+ *
+ *  Parameters:
+ *      deviceAddress   - i2c Slave device address which register
+ *                        to be read from
+ *      registerIndex   - Slave device's register to be read
+ *
+ *  Return Value:
+ *      Register value
+ */
+unsigned char swI2CReadReg(
+    unsigned char deviceAddress,
+    unsigned char registerIndex
+);
+
+/*
+ *  This function writes a value to the slave device's register
+ *
+ *  Parameters:
+ *      deviceAddress   - i2c Slave device address which register
+ *                        to be written
+ *      registerIndex   - Slave device's register to be written
+ *      data            - Data to be written to the register
+ *
+ *  Result:
+ *          0   - Success
+ *         -1   - Fail
+ */
+long swI2CWriteReg(
+    unsigned char deviceAddress,
+    unsigned char registerIndex,
+    unsigned char data
+);
+
+/*
+ *  These two functions are used to toggle the data on the SCL and SDA I2C lines.
+ *  The used of these two functions are not recommended unless it is necessary.
+ */
+
+/*
+ *  This function set/reset the SCL GPIO pin
+ *
+ *  Parameters:
+ *      value	- Bit value to set to the SCL or SDA (0 = low, 1 = high)
+ */
+void swI2CSCL(unsigned char value);
+
+/*
+ *  This function set/reset the SDA GPIO pin
+ *
+ *  Parameters:
+ *      value	- Bit value to set to the SCL or SDA (0 = low, 1 = high)
+ */
+void swI2CSDA(unsigned char value);
+
+#endif  /* _SWI2C_H_ */
diff --git a/drivers/staging/sm750fb/modedb.h b/drivers/staging/sm750fb/modedb.h
new file mode 100644
index 0000000..c5275c6
--- /dev/null
+++ b/drivers/staging/sm750fb/modedb.h
@@ -0,0 +1,221 @@
+
+static const struct fb_videomode modedb2[] = {
+    {
+	/* 640x400 @ 70 Hz, 31.5 kHz hsync */
+	NULL, 70, 640, 400, 39721, 40, 24, 39, 9, 96, 2,
+	0, FB_VMODE_NONINTERLACED
+    }, {
+	/* 640x480 @ 60 Hz, 31.5 kHz hsync */
+	NULL, 60, 640, 480, 39721, 40, 24, 32, 11, 96, 2,
+	0, FB_VMODE_NONINTERLACED
+    }, {
+	/* 800x600 @ 56 Hz, 35.15 kHz hsync */
+	NULL, 56, 800, 600, 27777, 128, 24, 22, 1, 72, 2,
+	0, FB_VMODE_NONINTERLACED
+    }, {
+	/* 1024x768 @ 87 Hz interlaced, 35.5 kHz hsync */
+	NULL, 87, 1024, 768, 22271, 56, 24, 33, 8, 160, 8,
+	0, FB_VMODE_INTERLACED
+    }, {
+	/* 640x400 @ 85 Hz, 37.86 kHz hsync */
+	NULL, 85, 640, 400, 31746, 96, 32, 41, 1, 64, 3,
+	FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
+    }, {
+	/* 640x480 @ 72 Hz, 36.5 kHz hsync */
+	NULL, 72, 640, 480, 31746, 144, 40, 30, 8, 40, 3,
+	0, FB_VMODE_NONINTERLACED
+    }, {
+	/* 640x480 @ 75 Hz, 37.50 kHz hsync */
+	NULL, 75, 640, 480, 31746, 120, 16, 16, 1, 64, 3,
+	0, FB_VMODE_NONINTERLACED
+    }, {
+	/* 800x600 @ 60 Hz, 37.8 kHz hsync */
+	NULL, 60, 800, 600, 25000, 88, 40, 23, 1, 128, 4,
+	FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
+    }, {
+	/* 640x480 @ 85 Hz, 43.27 kHz hsync */
+	NULL, 85, 640, 480, 27777, 80, 56, 25, 1, 56, 3,
+	0, FB_VMODE_NONINTERLACED
+    }, {
+	/* 1152x864 @ 89 Hz interlaced, 44 kHz hsync */
+	NULL, 69, 1152, 864, 15384, 96, 16, 110, 1, 216, 10,
+	0, FB_VMODE_INTERLACED
+    }, {
+	/* 800x600 @ 72 Hz, 48.0 kHz hsync */
+	NULL, 72, 800, 600, 20000, 64, 56, 23, 37, 120, 6,
+	FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
+    }, {
+	/* 1024x768 @ 60 Hz, 48.4 kHz hsync */
+	NULL, 60, 1024, 768, 15384, 168, 8, 29, 3, 144, 6,
+	0, FB_VMODE_NONINTERLACED
+    }, {
+	/* 640x480 @ 100 Hz, 53.01 kHz hsync */
+	NULL, 100, 640, 480, 21834, 96, 32, 36, 8, 96, 6,
+	0, FB_VMODE_NONINTERLACED
+    }, {
+	/* 1152x864 @ 60 Hz, 53.5 kHz hsync */
+	NULL, 60, 1152, 864, 11123, 208, 64, 16, 4, 256, 8,
+	0, FB_VMODE_NONINTERLACED
+    }, {
+	/* 800x600 @ 85 Hz, 55.84 kHz hsync */
+	NULL, 85, 800, 600, 16460, 160, 64, 36, 16, 64, 5,
+	0, FB_VMODE_NONINTERLACED
+    }, {
+	/* 1024x768 @ 70 Hz, 56.5 kHz hsync */
+	NULL, 70, 1024, 768, 13333, 144, 24, 29, 3, 136, 6,
+	0, FB_VMODE_NONINTERLACED
+    }, {
+        /*  1280x960-60 VESA */
+        NULL, 60, 1280, 960, 9259, 312, 96, 36, 1, 112, 3,
+        FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,  FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA
+    }, {
+        /*  1280x1024-60 VESA */
+        NULL, 60, 1280, 1024, 9259, 248, 48, 38, 1, 112, 3,
+        FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA
+    }, {
+	/* 1280x1024 @ 87 Hz interlaced, 51 kHz hsync */
+	NULL, 87, 1280, 1024, 12500, 56, 16, 128, 1, 216, 12,
+	0, FB_VMODE_INTERLACED
+    }, {
+	/* 800x600 @ 100 Hz, 64.02 kHz hsync */
+	NULL, 100, 800, 600, 14357, 160, 64, 30, 4, 64, 6,
+	0, FB_VMODE_NONINTERLACED
+    }, {
+	/* 1024x768 @ 76 Hz, 62.5 kHz hsync */
+	NULL, 76, 1024, 768, 11764, 208, 8, 36, 16, 120, 3,
+	0, FB_VMODE_NONINTERLACED
+    }, {
+	/* 1152x864 @ 70 Hz, 62.4 kHz hsync */
+	NULL, 70, 1152, 864, 10869, 106, 56, 20, 1, 160, 10,
+	0, FB_VMODE_NONINTERLACED
+    }, {
+	/* 1280x1024 @ 61 Hz, 64.2 kHz hsync */
+	NULL, 61, 1280, 1024, 9090, 200, 48, 26, 1, 184, 3,
+	0, FB_VMODE_NONINTERLACED
+    }, {
+	/* 1400x1050 @ 60Hz, 63.9 kHz hsync */
+	NULL, 68, 1400, 1050, 9259, 136, 40, 13, 1, 112, 3,
+	0, FB_VMODE_NONINTERLACED
+    }, {
+	/* 1400x1050 @ 75,107 Hz, 82,392 kHz +hsync +vsync*/
+	NULL, 75, 1400, 1050, 9271, 120, 56, 13, 0, 112, 3,
+	FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
+    }, {
+	/* 1400x1050 @ 60 Hz, ? kHz +hsync +vsync*/
+        NULL, 60, 1400, 1050, 9259, 128, 40, 12, 0, 112, 3,
+	FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
+    }, {
+	/* 1024x768 @ 85 Hz, 70.24 kHz hsync */
+	NULL, 85, 1024, 768, 10111, 192, 32, 34, 14, 160, 6,
+	0, FB_VMODE_NONINTERLACED
+    }, {
+	/* 1152x864 @ 78 Hz, 70.8 kHz hsync */
+	NULL, 78, 1152, 864, 9090, 228, 88, 32, 0, 84, 12,
+	0, FB_VMODE_NONINTERLACED
+    }, {
+	/* 1280x1024 @ 70 Hz, 74.59 kHz hsync */
+	NULL, 70, 1280, 1024, 7905, 224, 32, 28, 8, 160, 8,
+	0, FB_VMODE_NONINTERLACED
+    }, {
+	/* 1600x1200 @ 60Hz, 75.00 kHz hsync */
+	NULL, 60, 1600, 1200, 6172, 304, 64, 46, 1, 192, 3,
+	FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
+    }, {
+	/* 1152x864 @ 84 Hz, 76.0 kHz hsync */
+	NULL, 84, 1152, 864, 7407, 184, 312, 32, 0, 128, 12,
+	0, FB_VMODE_NONINTERLACED
+    }, {
+	/* 1280x1024 @ 74 Hz, 78.85 kHz hsync */
+	NULL, 74, 1280, 1024, 7407, 256, 32, 34, 3, 144, 3,
+	0, FB_VMODE_NONINTERLACED
+    }, {
+	/* 1024x768 @ 100Hz, 80.21 kHz hsync */
+	NULL, 100, 1024, 768, 8658, 192, 32, 21, 3, 192, 10,
+	0, FB_VMODE_NONINTERLACED
+    }, {
+	/* 1280x1024 @ 76 Hz, 81.13 kHz hsync */
+	NULL, 76, 1280, 1024, 7407, 248, 32, 34, 3, 104, 3,
+	0, FB_VMODE_NONINTERLACED
+    }, {
+	/* 1600x1200 @ 70 Hz, 87.50 kHz hsync */
+	NULL, 70, 1600, 1200, 5291, 304, 64, 46, 1, 192, 3,
+	0, FB_VMODE_NONINTERLACED
+    }, {
+	/* 1152x864 @ 100 Hz, 89.62 kHz hsync */
+	NULL, 100, 1152, 864, 7264, 224, 32, 17, 2, 128, 19,
+	0, FB_VMODE_NONINTERLACED
+    }, {
+	/* 1280x1024 @ 85 Hz, 91.15 kHz hsync */
+	NULL, 85, 1280, 1024, 6349, 224, 64, 44, 1, 160, 3,
+	FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
+    }, {
+	/* 1600x1200 @ 75 Hz, 93.75 kHz hsync */
+	NULL, 75, 1600, 1200, 4938, 304, 64, 46, 1, 192, 3,
+	FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
+    }, {
+	/* 1600x1200 @ 85 Hz, 105.77 kHz hsync */
+	NULL, 85, 1600, 1200, 4545, 272, 16, 37, 4, 192, 3,
+	FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
+    }, {
+	/* 1280x1024 @ 100 Hz, 107.16 kHz hsync */
+	NULL, 100, 1280, 1024, 5502, 256, 32, 26, 7, 128, 15,
+	0, FB_VMODE_NONINTERLACED
+    }, {
+	/* 1800x1440 @ 64Hz, 96.15 kHz hsync  */
+	NULL, 64, 1800, 1440, 4347, 304, 96, 46, 1, 192, 3,
+	FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
+    }, {
+	/* 1800x1440 @ 70Hz, 104.52 kHz hsync  */
+	NULL, 70, 1800, 1440, 4000, 304, 96, 46, 1, 192, 3,
+	FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
+    }, {
+	/* 512x384 @ 78 Hz, 31.50 kHz hsync */
+	NULL, 78, 512, 384, 49603, 48, 16, 16, 1, 64, 3,
+	0, FB_VMODE_NONINTERLACED
+    }, {
+	/* 512x384 @ 85 Hz, 34.38 kHz hsync */
+	NULL, 85, 512, 384, 45454, 48, 16, 16, 1, 64, 3,
+	0, FB_VMODE_NONINTERLACED
+    }, {
+	/* 320x200 @ 70 Hz, 31.5 kHz hsync, 8:5 aspect ratio */
+	NULL, 70, 320, 200, 79440, 16, 16, 20, 4, 48, 1,
+	0, FB_VMODE_DOUBLE
+    }, {
+	/* 320x240 @ 60 Hz, 31.5 kHz hsync, 4:3 aspect ratio */
+	NULL, 60, 320, 240, 79440, 16, 16, 16, 5, 48, 1,
+	0, FB_VMODE_DOUBLE
+    }, {
+	/* 320x240 @ 72 Hz, 36.5 kHz hsync */
+	NULL, 72, 320, 240, 63492, 16, 16, 16, 4, 48, 2,
+	0, FB_VMODE_DOUBLE
+    }, {
+	/* 400x300 @ 56 Hz, 35.2 kHz hsync, 4:3 aspect ratio */
+	NULL, 56, 400, 300, 55555, 64, 16, 10, 1, 32, 1,
+	0, FB_VMODE_DOUBLE
+    }, {
+	/* 400x300 @ 60 Hz, 37.8 kHz hsync */
+	NULL, 60, 400, 300, 50000, 48, 16, 11, 1, 64, 2,
+	0, FB_VMODE_DOUBLE
+    }, {
+	/* 400x300 @ 72 Hz, 48.0 kHz hsync */
+	NULL, 72, 400, 300, 40000, 32, 24, 11, 19, 64, 3,
+	0, FB_VMODE_DOUBLE
+    }, {
+	/* 480x300 @ 56 Hz, 35.2 kHz hsync, 8:5 aspect ratio */
+	NULL, 56, 480, 300, 46176, 80, 16, 10, 1, 40, 1,
+	0, FB_VMODE_DOUBLE
+    }, {
+	/* 480x300 @ 60 Hz, 37.8 kHz hsync */
+	NULL, 60, 480, 300, 41858, 56, 16, 11, 1, 80, 2,
+	0, FB_VMODE_DOUBLE
+    }, {
+	/* 480x300 @ 63 Hz, 39.6 kHz hsync */
+	NULL, 63, 480, 300, 40000, 56, 16, 11, 1, 80, 2,
+	0, FB_VMODE_DOUBLE
+    }, {
+	/* 480x300 @ 72 Hz, 48.0 kHz hsync */
+	NULL, 72, 480, 300, 33386, 40, 24, 11, 19, 80, 3,
+	0, FB_VMODE_DOUBLE
+    },
+};
+static const int nmodedb2 = sizeof(modedb2);
diff --git a/drivers/staging/sm750fb/readme b/drivers/staging/sm750fb/readme
new file mode 100644
index 0000000..ab9af79
--- /dev/null
+++ b/drivers/staging/sm750fb/readme
@@ -0,0 +1,38 @@
+Introduction:
+	SM750 of Silicon MOtion is pci express display controller device.
+	The SM750 embedded graphics features include:
+	- dual display
+	- 2D acceleration
+	- 16MB integrated video memory
+
+About the kernel module paramter of driver:
+
+	Use 1280,8bpp index color and 60 hz mode:
+	insmod ./sm750fb.ko g_option="1280x1024-8@60"
+
+	Disable MTRR,Disable 2d acceleration,Disable hardware cursor,
+	and use a 800x600 mode :
+	insmod ./sm750fb.ko g_option="noaccel:nomtrr:nohwc:800x600"
+
+	dual frame buffer for driver with "dual" parameter
+	insmod ./sm750fb.ko g_option="dual,800x600:1024x768"
+	it will create fb0 and fb1 (or fb1,fb2 if fb0 already exist) under /dev
+	and user can use con2fb to link fbX and ttyX
+
+	Notes:
+	1) if you build the driver with built-in method, the paramter
+		you edited in the grub config file will be also the
+		same format as above modular method,but additionaly add
+		"video=sm750fb:"
+		ahead of parameters,so,it looks like:
+		video=sm750fb:noaccel,1280x1024@60,otherparam,etc...
+		it equal to modular method with below command:
+		insmod ./sm750fb.ko g_option="noaccel:1280x1024@60:otherparm:etc..."
+
+	2) if you put 800x600 into the paramter without bpp and
+		refresh rate, kernel driver will defaulty use 16bpp and 60hz
+
+Important:
+	if you have vesafb enabled in your config then /dev/fb0 will be created by vesafb
+	and this driver will use fb1, fb2. In that case, you need to configure your X-server
+	to use fb1. Another simple althernative is to disable vesafb from your config.
diff --git a/drivers/staging/sm750fb/sm750.c b/drivers/staging/sm750fb/sm750.c
new file mode 100644
index 0000000..3c7ea95
--- /dev/null
+++ b/drivers/staging/sm750fb/sm750.c
@@ -0,0 +1,1403 @@
+#include<linux/kernel.h>
+#include<linux/module.h>
+#include<linux/errno.h>
+#include<linux/string.h>
+#include<linux/mm.h>
+#include<linux/slab.h>
+#include<linux/delay.h>
+#include<linux/fb.h>
+#include<linux/ioport.h>
+#include<linux/init.h>
+#include<linux/pci.h>
+#include<linux/mm_types.h>
+#include<linux/vmalloc.h>
+#include<linux/pagemap.h>
+#include<linux/screen_info.h>
+#include<linux/vmalloc.h>
+#include<linux/pagemap.h>
+#include <linux/console.h>
+#ifdef CONFIG_MTRR
+#include <asm/mtrr.h>
+#endif
+#include <asm/fb.h>
+#include "sm750.h"
+#include "sm750_hw.h"
+#include "sm750_accel.h"
+#include "sm750_cursor.h"
+
+#include "modedb.h"
+
+int smi_indent = 0;
+
+
+/*
+ * #ifdef __BIG_ENDIAN
+ * ssize_t lynxfb_ops_write(struct fb_info *info, const char __user *buf,
+ * size_t count, loff_t *ppos);
+ * ssize_t lynxfb_ops_read(struct fb_info *info, char __user *buf,
+ * size_t count, loff_t *ppos);
+ * #endif
+ */
+
+typedef void (*PROC_SPEC_SETUP)(struct lynx_share*, char *);
+typedef int (*PROC_SPEC_MAP)(struct lynx_share*, struct pci_dev*);
+typedef int (*PROC_SPEC_INITHW)(struct lynx_share*, struct pci_dev*);
+
+
+/* common var for all device */
+static int g_hwcursor = 1;
+static int g_noaccel;
+#ifdef CONFIG_MTRR
+static int g_nomtrr;
+#endif
+static const char *g_fbmode[] = {NULL, NULL};
+static const char *g_def_fbmode = "800x600-16@60";
+static char *g_settings = NULL;
+static int g_dualview;
+static char *g_option = NULL;
+
+
+static const struct fb_videomode lynx750_ext[] = {
+	/*	1024x600-60 VESA	[1.71:1] */
+	{NULL,  60, 1024, 600, 20423, 144,  40, 18, 1, 104, 3,
+	 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+	 FB_VMODE_NONINTERLACED},
+
+	/*	1024x600-70 VESA */
+	{NULL,  70, 1024, 600, 17211, 152,  48, 21, 1, 104, 3,
+	 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+	 FB_VMODE_NONINTERLACED},
+
+	/*	1024x600-75 VESA */
+	{NULL,  75, 1024, 600, 15822, 160,  56, 23, 1, 104, 3,
+	 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+	 FB_VMODE_NONINTERLACED},
+
+	/*	1024x600-85 VESA */
+	{NULL,  85, 1024, 600, 13730, 168,  56, 26, 1, 112, 3,
+	 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+	 FB_VMODE_NONINTERLACED},
+
+	/*	720x480	*/
+	{NULL, 60,  720,  480,  37427, 88,   16, 13, 1,   72,  3,
+	 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+	 FB_VMODE_NONINTERLACED},
+
+	/*	1280x720		[1.78:1]	*/
+	{NULL, 60,  1280,  720,  13426, 162, 86, 22, 1,  136, 3,
+	 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+	 FB_VMODE_NONINTERLACED},
+
+	/*	1280x768@60 */
+	{NULL, 60, 1280, 768, 12579, 192, 64, 20, 3, 128, 7,
+	 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+	 FB_VMODE_NONINTERLACED},
+
+	{NULL, 60, 1360, 768, 11804, 208, 64, 23, 1, 144, 3,
+	 FB_SYNC_HOR_HIGH_ACT|FB_VMODE_NONINTERLACED},
+
+	/*	1360 x 768	[1.77083:1]	*/
+	{NULL,  60, 1360, 768, 11804, 208,  64, 23, 1, 144, 3,
+	 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+	 FB_VMODE_NONINTERLACED},
+
+	/*	1368 x 768      [1.78:1]	*/
+	{NULL, 60,  1368,  768,  11647, 216, 72, 23, 1,  144, 3,
+	 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+	 FB_VMODE_NONINTERLACED},
+
+	/*	1440 x 900		[16:10]	*/
+	{NULL, 60, 1440, 900, 9392, 232, 80, 28, 1, 152, 3,
+	 FB_SYNC_VERT_HIGH_ACT,
+	 FB_VMODE_NONINTERLACED},
+
+	/*	1440x960		[15:10]	*/
+	{NULL, 60, 1440, 960, 8733, 240, 88, 30, 1, 152, 3,
+	 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+	 FB_VMODE_NONINTERLACED},
+
+	/*	1920x1080	[16:9]	*/
+	{NULL, 60, 1920, 1080, 6734, 148, 88, 41, 1, 44, 3,
+	 FB_SYNC_VERT_HIGH_ACT,
+	 FB_VMODE_NONINTERLACED},
+};
+
+
+
+
+/* no hardware cursor supported under version 2.6.10, kernel bug */
+static int lynxfb_ops_cursor(struct fb_info *info, struct fb_cursor *fbcursor)
+{
+	struct lynxfb_par *par;
+	struct lynxfb_crtc *crtc;
+	struct lynx_cursor *cursor;
+
+	par = info->par;
+	crtc = &par->crtc;
+	cursor = &crtc->cursor;
+
+	if (fbcursor->image.width > cursor->maxW ||
+	   fbcursor->image.height > cursor->maxH ||
+	   fbcursor->image.depth > 1) {
+		return -ENXIO;
+	}
+
+	cursor->disable(cursor);
+	if (fbcursor->set & FB_CUR_SETSIZE)
+		cursor->setSize(cursor,
+				fbcursor->image.width,
+				fbcursor->image.height);
+
+	if (fbcursor->set & FB_CUR_SETPOS)
+		cursor->setPos(cursor,
+			       fbcursor->image.dx - info->var.xoffset,
+			       fbcursor->image.dy - info->var.yoffset);
+
+	if (fbcursor->set & FB_CUR_SETCMAP) {
+		/* get the 16bit color of kernel means */
+		u16 fg, bg;
+
+		fg = ((info->cmap.red[fbcursor->image.fg_color] & 0xf800))|
+		      ((info->cmap.green[fbcursor->image.fg_color] & 0xfc00) >> 5)|
+		      ((info->cmap.blue[fbcursor->image.fg_color] & 0xf800) >> 11);
+
+		bg = ((info->cmap.red[fbcursor->image.bg_color] & 0xf800))|
+		      ((info->cmap.green[fbcursor->image.bg_color] & 0xfc00) >> 5)|
+		      ((info->cmap.blue[fbcursor->image.bg_color] & 0xf800) >> 11);
+
+		cursor->setColor(cursor, fg, bg);
+	}
+
+
+	if (fbcursor->set & (FB_CUR_SETSHAPE | FB_CUR_SETIMAGE)) {
+		cursor->setData(cursor,
+				fbcursor->rop,
+				fbcursor->image.data,
+				fbcursor->mask);
+	}
+
+	if (fbcursor->enable)
+		cursor->enable(cursor);
+
+	return 0;
+}
+
+static void lynxfb_ops_fillrect(struct fb_info *info,
+				const struct fb_fillrect *region)
+{
+	struct lynxfb_par *par;
+	struct lynx_share *share;
+	unsigned int base, pitch, Bpp, rop;
+	u32 color;
+
+	if (info->state != FBINFO_STATE_RUNNING)
+		return;
+
+	par = info->par;
+	share = par->share;
+
+	/* each time 2d function begin to work,below three variable always need
+	 * be set, seems we can put them together in some place  */
+	base = par->crtc.oScreen;
+	pitch = info->fix.line_length;
+	Bpp = info->var.bits_per_pixel >> 3;
+
+	color = (Bpp == 1)?region->color:((u32 *)info->pseudo_palette)[region->color];
+	rop = (region->rop != ROP_COPY) ? HW_ROP2_XOR:HW_ROP2_COPY;
+
+	/*
+	 * If not use spin_lock,system will die if user load driver
+	 * and immediatly unload driver frequently (dual)
+	 */
+	if (share->dual)
+		spin_lock(&share->slock);
+
+	share->accel.de_fillrect(&share->accel,
+				 base, pitch, Bpp,
+				 region->dx, region->dy,
+				 region->width, region->height,
+				 color, rop);
+	if (share->dual)
+		spin_unlock(&share->slock);
+}
+
+static void lynxfb_ops_copyarea(struct fb_info *info,
+				const struct fb_copyarea *region)
+{
+	struct lynxfb_par *par;
+	struct lynx_share *share;
+	unsigned int base, pitch, Bpp;
+
+	par = info->par;
+	share = par->share;
+
+	/* each time 2d function begin to work,below three variable always need
+	 * be set, seems we can put them together in some place  */
+	base = par->crtc.oScreen;
+	pitch = info->fix.line_length;
+	Bpp = info->var.bits_per_pixel >> 3;
+
+	/*
+	 * If not use spin_lock, system will die if user load driver
+	 * and immediatly unload driver frequently (dual)
+	 */
+	if (share->dual)
+		spin_lock(&share->slock);
+
+	share->accel.de_copyarea(&share->accel,
+				 base, pitch, region->sx, region->sy,
+				 base, pitch, Bpp, region->dx, region->dy,
+				 region->width, region->height, HW_ROP2_COPY);
+	if (share->dual)
+		spin_unlock(&share->slock);
+}
+
+static void lynxfb_ops_imageblit(struct fb_info *info,
+				 const struct fb_image *image)
+{
+	unsigned int base, pitch, Bpp;
+	unsigned int fgcol, bgcol;
+	struct lynxfb_par *par;
+	struct lynx_share *share;
+
+	par = info->par;
+	share = par->share;
+	/* each time 2d function begin to work,below three variable always need
+	 * be set, seems we can put them together in some place  */
+	base = par->crtc.oScreen;
+	pitch = info->fix.line_length;
+	Bpp = info->var.bits_per_pixel >> 3;
+
+	if (image->depth == 1) {
+		if (info->fix.visual == FB_VISUAL_TRUECOLOR ||
+		    info->fix.visual == FB_VISUAL_DIRECTCOLOR) {
+			fgcol = ((u32 *)info->pseudo_palette)[image->fg_color];
+			bgcol = ((u32 *)info->pseudo_palette)[image->bg_color];
+		} else {
+			fgcol = image->fg_color;
+			bgcol = image->bg_color;
+		}
+		goto _do_work;
+	}
+	return;
+_do_work:
+	/*
+	 * If not use spin_lock, system will die if user load driver
+	 * and immediatly unload driver frequently (dual)
+	 */
+	if (share->dual)
+		spin_lock(&share->slock);
+
+	share->accel.de_imageblit(&share->accel,
+				  image->data, image->width>>3, 0,
+				  base, pitch, Bpp,
+				  image->dx, image->dy,
+				  image->width, image->height,
+				  fgcol, bgcol, HW_ROP2_COPY);
+	if (share->dual)
+		spin_unlock(&share->slock);
+}
+
+static int lynxfb_ops_pan_display(struct fb_var_screeninfo *var,
+				  struct fb_info *info)
+{
+	struct lynxfb_par *par;
+	struct lynxfb_crtc *crtc;
+	int ret;
+
+
+	if (!info)
+		return -EINVAL;
+
+	ret = 0;
+	par = info->par;
+	crtc = &par->crtc;
+	ret = crtc->proc_panDisplay(crtc, var, info);
+
+	return ret;
+}
+
+static int lynxfb_ops_set_par(struct fb_info *info)
+{
+	struct lynxfb_par *par;
+	struct lynx_share *share;
+	struct lynxfb_crtc *crtc;
+	struct lynxfb_output *output;
+	struct fb_var_screeninfo *var;
+	struct fb_fix_screeninfo *fix;
+	int ret;
+	unsigned int line_length;
+
+	if (!info)
+		return -EINVAL;
+
+	ret = 0;
+	par = info->par;
+	share = par->share;
+	crtc = &par->crtc;
+	output = &par->output;
+	var = &info->var;
+	fix = &info->fix;
+
+	/* fix structur is not so FIX ... */
+	line_length = var->xres_virtual * var->bits_per_pixel / 8;
+	line_length = PADDING(crtc->line_pad, line_length);
+	fix->line_length = line_length;
+	pr_err("fix->line_length = %d\n", fix->line_length);
+
+	/* var->red,green,blue,transp are need to be set by driver
+	 * and these data should be set before setcolreg routine
+	 * */
+
+	switch (var->bits_per_pixel) {
+	case 8:
+		fix->visual = FB_VISUAL_PSEUDOCOLOR;
+		var->red.offset = 0;
+		var->red.length = 8;
+		var->green.offset = 0;
+		var->green.length = 8;
+		var->blue.offset = 0;
+		var->blue.length = 8;
+		var->transp.length = 0;
+		var->transp.offset = 0;
+		break;
+	case 16:
+		var->red.offset = 11;
+		var->red.length = 5;
+		var->green.offset = 5;
+		var->green.length = 6;
+		var->blue.offset = 0;
+		var->blue.length = 5;
+		var->transp.length = 0;
+		var->transp.offset = 0;
+		fix->visual = FB_VISUAL_TRUECOLOR;
+		break;
+	case 24:
+	case 32:
+		var->red.offset = 16;
+		var->red.length = 8;
+		var->green.offset = 8;
+		var->green.length = 8;
+		var->blue.offset = 0;
+		var->blue.length = 8;
+		fix->visual = FB_VISUAL_TRUECOLOR;
+		break;
+	default:
+		ret = -EINVAL;
+		break;
+	}
+	var->height = var->width = -1;
+	var->accel_flags = 0;/*FB_ACCELF_TEXT;*/
+
+	if (ret) {
+		pr_err("pixel bpp format not satisfied\n.");
+		return ret;
+	}
+	ret = crtc->proc_setMode(crtc, var, fix);
+	if (!ret)
+		ret = output->proc_setMode(output, var, fix);
+	return ret;
+}
+
+static inline unsigned int chan_to_field(unsigned int chan,
+					 struct fb_bitfield *bf)
+{
+	chan &= 0xffff;
+	chan >>= 16 - bf->length;
+	return chan << bf->offset;
+}
+
+#ifdef CONFIG_PM
+static int lynxfb_suspend(struct pci_dev *pdev, pm_message_t mesg)
+{
+	struct fb_info *info;
+	struct lynx_share *share;
+	int ret;
+
+	if (mesg.event == pdev->dev.power.power_state.event)
+		return 0;
+
+	ret = 0;
+	share = pci_get_drvdata(pdev);
+	switch (mesg.event) {
+	case PM_EVENT_FREEZE:
+	case PM_EVENT_PRETHAW:
+		pdev->dev.power.power_state = mesg;
+		return 0;
+	}
+
+	console_lock();
+	if (mesg.event & PM_EVENT_SLEEP) {
+		info = share->fbinfo[0];
+		if (info)
+			/* 1 means do suspend */
+			fb_set_suspend(info, 1);
+		info = share->fbinfo[1];
+		if (info)
+			/* 1 means do suspend */
+			fb_set_suspend(info, 1);
+
+		ret = pci_save_state(pdev);
+		if (ret) {
+			pr_err("error:%d occurred in pci_save_state\n", ret);
+			return ret;
+		}
+
+		/* set chip to sleep mode */
+		if (share->suspend)
+			(*share->suspend)(share);
+
+		pci_disable_device(pdev);
+		ret = pci_set_power_state(pdev, pci_choose_state(pdev, mesg));
+		if (ret) {
+			pr_err("error:%d occurred in pci_set_power_state\n", ret);
+			return ret;
+		}
+	}
+
+	pdev->dev.power.power_state = mesg;
+	console_unlock();
+	return ret;
+}
+
+static int lynxfb_resume(struct pci_dev *pdev)
+{
+	struct fb_info *info;
+	struct lynx_share *share;
+
+	struct lynxfb_par *par;
+	struct lynxfb_crtc *crtc;
+	struct lynx_cursor *cursor;
+
+	int ret;
+
+
+	ret = 0;
+	share = pci_get_drvdata(pdev);
+
+	console_lock();
+
+	ret = pci_set_power_state(pdev, PCI_D0);
+	if (ret) {
+		pr_err("error:%d occured in pci_set_power_state\n", ret);
+		return ret;
+	}
+
+
+	if (pdev->dev.power.power_state.event != PM_EVENT_FREEZE) {
+		pci_restore_state(pdev);
+		ret = pci_enable_device(pdev);
+		if (ret) {
+			pr_err("error:%d occured in pci_enable_device\n", ret);
+			return ret;
+		}
+		pci_set_master(pdev);
+	}
+	if (share->resume)
+		(*share->resume)(share);
+
+	hw_sm750_inithw(share, pdev);
+
+
+	info = share->fbinfo[0];
+
+	if (info) {
+		par = info->par;
+		crtc = &par->crtc;
+		cursor = &crtc->cursor;
+		memset_io(cursor->vstart, 0x0, cursor->size);
+		memset_io(crtc->vScreen, 0x0, crtc->vidmem_size);
+		lynxfb_ops_set_par(info);
+		fb_set_suspend(info, 0);
+	}
+
+	info = share->fbinfo[1];
+
+	if (info) {
+		par = info->par;
+		crtc = &par->crtc;
+		cursor = &crtc->cursor;
+		memset_io(cursor->vstart, 0x0, cursor->size);
+		memset_io(crtc->vScreen, 0x0, crtc->vidmem_size);
+		lynxfb_ops_set_par(info);
+		fb_set_suspend(info, 0);
+	}
+
+
+	console_unlock();
+	return ret;
+}
+#endif
+
+static int lynxfb_ops_check_var(struct fb_var_screeninfo *var,
+				struct fb_info *info)
+{
+	struct lynxfb_par *par;
+	struct lynxfb_crtc *crtc;
+	struct lynxfb_output *output;
+	struct lynx_share *share;
+	int ret;
+	resource_size_t request;
+
+
+	par = info->par;
+	crtc = &par->crtc;
+	output = &par->output;
+	share = par->share;
+	ret = 0;
+
+	pr_debug("check var:%dx%d-%d\n",
+		 var->xres,
+		 var->yres,
+		 var->bits_per_pixel);
+
+
+	switch (var->bits_per_pixel) {
+	case 8:
+	case 16:
+	case 24: /* support 24 bpp for only lynx712/722/720 */
+	case 32:
+		break;
+	default:
+		pr_err("bpp %d not supported\n", var->bits_per_pixel);
+		ret = -EINVAL;
+		goto exit;
+	}
+
+	switch (var->bits_per_pixel) {
+	case 8:
+		info->fix.visual = FB_VISUAL_PSEUDOCOLOR;
+		var->red.offset = 0;
+		var->red.length = 8;
+		var->green.offset = 0;
+		var->green.length = 8;
+		var->blue.offset = 0;
+		var->blue.length = 8;
+		var->transp.length = 0;
+		var->transp.offset = 0;
+		break;
+	case 16:
+		var->red.offset = 11;
+		var->red.length = 5;
+		var->green.offset = 5;
+		var->green.length = 6;
+		var->blue.offset = 0;
+		var->blue.length = 5;
+		var->transp.length = 0;
+		var->transp.offset = 0;
+		info->fix.visual = FB_VISUAL_TRUECOLOR;
+		break;
+	case 24:
+	case 32:
+		var->red.offset = 16;
+		var->red.length = 8;
+		var->green.offset = 8;
+		var->green.length = 8;
+		var->blue.offset = 0;
+		var->blue.length = 8;
+		info->fix.visual = FB_VISUAL_TRUECOLOR;
+		break;
+	default:
+		ret = -EINVAL;
+		break;
+	}
+	var->height = var->width = -1;
+	var->accel_flags = 0;/* FB_ACCELF_TEXT; */
+
+	/* check if current fb's video memory big enought to hold the onscreen*/
+	request = var->xres_virtual * (var->bits_per_pixel >> 3);
+	/* defaulty crtc->channel go with par->index */
+
+	request = PADDING(crtc->line_pad, request);
+	request = request * var->yres_virtual;
+	if (crtc->vidmem_size < request) {
+		pr_err("not enough video memory for mode\n");
+		return -ENOMEM;
+	}
+
+	ret = output->proc_checkMode(output, var);
+	if (!ret)
+		ret = crtc->proc_checkMode(crtc, var);
+exit:
+	return ret;
+}
+
+
+static int lynxfb_ops_setcolreg(unsigned regno,
+				unsigned red,
+				unsigned green,
+				unsigned blue,
+				unsigned transp,
+				struct fb_info *info)
+{
+	struct lynxfb_par *par;
+	struct lynxfb_crtc *crtc;
+	struct fb_var_screeninfo *var;
+	int ret;
+
+	par = info->par;
+	crtc = &par->crtc;
+	var = &info->var;
+	ret = 0;
+
+	if (regno > 256) {
+		pr_err("regno = %d\n", regno);
+		return -EINVAL;
+	}
+
+	if (info->var.grayscale)
+		red = green = blue = (red * 77 + green * 151 + blue * 28) >> 8;
+
+	if (var->bits_per_pixel == 8 &&
+	    info->fix.visual == FB_VISUAL_PSEUDOCOLOR) {
+		red >>= 8;
+		green >>= 8;
+		blue >>= 8;
+		ret = crtc->proc_setColReg(crtc, regno, red, green, blue);
+		goto exit;
+	}
+
+
+	if (info->fix.visual == FB_VISUAL_TRUECOLOR && regno < 256) {
+		u32 val;
+
+		if (var->bits_per_pixel == 16 ||
+		    var->bits_per_pixel == 32 ||
+		    var->bits_per_pixel == 24) {
+			val = chan_to_field(red, &var->red);
+			val |= chan_to_field(green, &var->green);
+			val |= chan_to_field(blue, &var->blue);
+			par->pseudo_palette[regno] = val;
+			goto exit;
+		}
+	}
+
+	ret = -EINVAL;
+
+exit:
+	return ret;
+}
+
+static int lynxfb_ops_blank(int blank, struct fb_info *info)
+{
+	struct lynxfb_par *par;
+	struct lynxfb_output *output;
+
+	pr_debug("blank = %d.\n", blank);
+	par = info->par;
+	output = &par->output;
+	return output->proc_setBLANK(output, blank);
+}
+
+static int sm750fb_set_drv(struct lynxfb_par *par)
+{
+	int ret;
+	struct lynx_share *share;
+	struct sm750_share *spec_share;
+	struct lynxfb_output *output;
+	struct lynxfb_crtc *crtc;
+
+	ret = 0;
+
+	share = par->share;
+	spec_share = container_of(share, struct sm750_share, share);
+	output = &par->output;
+	crtc = &par->crtc;
+
+	crtc->vidmem_size = (share->dual)?share->vidmem_size>>1:share->vidmem_size;
+	/* setup crtc and output member */
+	spec_share->hwCursor = g_hwcursor;
+
+	crtc->proc_setMode = hw_sm750_crtc_setMode;
+	crtc->proc_checkMode = hw_sm750_crtc_checkMode;
+	crtc->proc_setColReg = hw_sm750_setColReg;
+	crtc->proc_panDisplay = hw_sm750_pan_display;
+	crtc->clear = hw_sm750_crtc_clear;
+	crtc->line_pad = 16;
+	crtc->xpanstep = 8;
+	crtc->ypanstep = 1;
+	crtc->ywrapstep = 0;
+
+	output->proc_setMode = hw_sm750_output_setMode;
+	output->proc_checkMode = hw_sm750_output_checkMode;
+
+	output->proc_setBLANK = (share->revid == SM750LE_REVISION_ID)?hw_sm750le_setBLANK:hw_sm750_setBLANK;
+	output->clear = hw_sm750_output_clear;
+	/* chip specific phase */
+	share->accel.de_wait = (share->revid == SM750LE_REVISION_ID)?hw_sm750le_deWait : hw_sm750_deWait;
+	switch (spec_share->state.dataflow) {
+	case sm750_simul_pri:
+		output->paths = sm750_pnc;
+		crtc->channel = sm750_primary;
+		crtc->oScreen = 0;
+		crtc->vScreen = share->pvMem;
+		pr_info("use simul primary mode\n");
+		break;
+	case sm750_simul_sec:
+		output->paths = sm750_pnc;
+		crtc->channel = sm750_secondary;
+		crtc->oScreen = 0;
+		crtc->vScreen = share->pvMem;
+		break;
+	case sm750_dual_normal:
+		if (par->index == 0) {
+			output->paths = sm750_panel;
+			crtc->channel = sm750_primary;
+			crtc->oScreen = 0;
+			crtc->vScreen = share->pvMem;
+		} else {
+			output->paths = sm750_crt;
+			crtc->channel = sm750_secondary;
+			/* not consider of padding stuffs for oScreen,need fix */
+			crtc->oScreen = (share->vidmem_size >> 1);
+			crtc->vScreen = share->pvMem + crtc->oScreen;
+		}
+		break;
+	case sm750_dual_swap:
+		if (par->index == 0) {
+			output->paths = sm750_panel;
+			crtc->channel = sm750_secondary;
+			crtc->oScreen = 0;
+			crtc->vScreen = share->pvMem;
+		} else {
+			output->paths = sm750_crt;
+			crtc->channel = sm750_primary;
+			/* not consider of padding stuffs for oScreen,need fix */
+			crtc->oScreen = (share->vidmem_size >> 1);
+			crtc->vScreen = share->pvMem + crtc->oScreen;
+		}
+		break;
+	default:
+		ret = -EINVAL;
+	}
+
+	return ret;
+}
+
+static struct fb_ops lynxfb_ops = {
+	.owner = THIS_MODULE,
+	.fb_check_var =  lynxfb_ops_check_var,
+	.fb_set_par = lynxfb_ops_set_par,
+	.fb_setcolreg = lynxfb_ops_setcolreg,
+	.fb_blank = lynxfb_ops_blank,
+	.fb_fillrect = cfb_fillrect,
+	.fb_imageblit = cfb_imageblit,
+	.fb_copyarea = cfb_copyarea,
+	/* cursor */
+	.fb_cursor = lynxfb_ops_cursor,
+};
+
+
+static int lynxfb_set_fbinfo(struct fb_info *info, int index)
+{
+	int i;
+	struct lynxfb_par *par;
+	struct lynx_share *share;
+	struct lynxfb_crtc *crtc;
+	struct lynxfb_output *output;
+	struct fb_var_screeninfo *var;
+	struct fb_fix_screeninfo *fix;
+
+	const struct fb_videomode *pdb[] = {
+		lynx750_ext, NULL, vesa_modes,
+	};
+	int cdb[] = {ARRAY_SIZE(lynx750_ext), 0, VESA_MODEDB_SIZE};
+	static const char *mdb_desc[] = {
+		"driver prepared modes",
+		"kernel prepared default modedb",
+		"kernel HELPERS prepared vesa_modes",
+	};
+
+
+	static const char *fixId[2] = {
+		"sm750_fb1", "sm750_fb2",
+	};
+
+	int ret, line_length;
+
+	ret = 0;
+	par = (struct lynxfb_par *)info->par;
+	share = par->share;
+	crtc = &par->crtc;
+	output = &par->output;
+	var = &info->var;
+	fix = &info->fix;
+
+	/* set index */
+	par->index = index;
+	output->channel = &crtc->channel;
+	sm750fb_set_drv(par);
+	lynxfb_ops.fb_pan_display = lynxfb_ops_pan_display;
+
+
+	/* set current cursor variable and proc pointer,
+	 * must be set after crtc member initialized */
+	crtc->cursor.offset = crtc->oScreen + crtc->vidmem_size - 1024;
+	crtc->cursor.mmio = share->pvReg + 0x800f0 + (int)crtc->channel * 0x140;
+
+	pr_info("crtc->cursor.mmio = %p\n", crtc->cursor.mmio);
+	crtc->cursor.maxH = crtc->cursor.maxW = 64;
+	crtc->cursor.size = crtc->cursor.maxH*crtc->cursor.maxW*2/8;
+	crtc->cursor.disable = hw_cursor_disable;
+	crtc->cursor.enable = hw_cursor_enable;
+	crtc->cursor.setColor = hw_cursor_setColor;
+	crtc->cursor.setPos = hw_cursor_setPos;
+	crtc->cursor.setSize = hw_cursor_setSize;
+	crtc->cursor.setData = hw_cursor_setData;
+	crtc->cursor.vstart = share->pvMem + crtc->cursor.offset;
+
+
+	crtc->cursor.share = share;
+		memset_io(crtc->cursor.vstart, 0, crtc->cursor.size);
+	if (!g_hwcursor) {
+		lynxfb_ops.fb_cursor = NULL;
+		crtc->cursor.disable(&crtc->cursor);
+	}
+
+
+	/* set info->fbops, must be set before fb_find_mode */
+	if (!share->accel_off) {
+		/* use 2d acceleration */
+		lynxfb_ops.fb_fillrect = lynxfb_ops_fillrect;
+		lynxfb_ops.fb_copyarea = lynxfb_ops_copyarea;
+		lynxfb_ops.fb_imageblit = lynxfb_ops_imageblit;
+	}
+	info->fbops = &lynxfb_ops;
+
+	if (!g_fbmode[index]) {
+		g_fbmode[index] = g_def_fbmode;
+		if (index)
+			g_fbmode[index] = g_fbmode[0];
+	}
+
+
+	for (i = 0; i < 3; i++) {
+
+		ret = fb_find_mode(var, info, g_fbmode[index],
+				   pdb[i], cdb[i], NULL, 8);
+
+		if (ret == 1) {
+			pr_info("success! use specified mode:%s in %s\n",
+				g_fbmode[index],
+				mdb_desc[i]);
+			break;
+		} else if (ret == 2) {
+			pr_warn("use specified mode:%s in %s,with an ignored refresh rate\n",
+				g_fbmode[index],
+				mdb_desc[i]);
+			break;
+		} else if (ret == 3) {
+			pr_warn("wanna use default mode\n");
+			/*break;*/
+		} else if (ret == 4) {
+			pr_warn("fall back to any valid mode\n");
+		} else {
+			pr_warn("ret = %d,fb_find_mode failed,with %s\n",
+				ret,
+				mdb_desc[i]);
+		}
+	}
+
+	/* some member of info->var had been set by fb_find_mode */
+
+	pr_info("Member of info->var is :\n\
+		xres=%d\n\
+		yres=%d\n\
+		xres_virtual=%d\n\
+		yres_virtual=%d\n\
+		xoffset=%d\n\
+		yoffset=%d\n\
+		bits_per_pixel=%d\n \
+		...\n",
+		var->xres,
+		var->yres,
+		var->xres_virtual,
+		var->yres_virtual,
+		var->xoffset,
+		var->yoffset,
+		var->bits_per_pixel);
+
+	/* set par */
+	par->info = info;
+
+	/* set info */
+	line_length = PADDING(crtc->line_pad,
+			      (var->xres_virtual * var->bits_per_pixel/8));
+
+	info->pseudo_palette = &par->pseudo_palette[0];
+	info->screen_base = crtc->vScreen;
+	pr_debug("screen_base vaddr = %p\n", info->screen_base);
+	info->screen_size = line_length * var->yres_virtual;
+	info->flags = FBINFO_FLAG_DEFAULT|0;
+
+	/* set info->fix */
+	fix->type = FB_TYPE_PACKED_PIXELS;
+	fix->type_aux = 0;
+	fix->xpanstep = crtc->xpanstep;
+	fix->ypanstep = crtc->ypanstep;
+	fix->ywrapstep = crtc->ywrapstep;
+	fix->accel = FB_ACCEL_SMI;
+
+	strlcpy(fix->id, fixId[index], sizeof(fix->id));
+
+
+	fix->smem_start = crtc->oScreen + share->vidmem_start;
+	pr_info("fix->smem_start = %lx\n", fix->smem_start);
+	/* according to mmap experiment from user space application,
+	 * fix->mmio_len should not larger than virtual size
+	 * (xres_virtual x yres_virtual x ByPP)
+	 * Below line maybe buggy when user mmap fb dev node and write
+	 * data into the bound over virtual size
+	 * */
+	fix->smem_len = crtc->vidmem_size;
+	pr_info("fix->smem_len = %x\n", fix->smem_len);
+	info->screen_size = fix->smem_len;
+	fix->line_length = line_length;
+	fix->mmio_start = share->vidreg_start;
+	pr_info("fix->mmio_start = %lx\n", fix->mmio_start);
+	fix->mmio_len = share->vidreg_size;
+	pr_info("fix->mmio_len = %x\n", fix->mmio_len);
+	switch (var->bits_per_pixel) {
+	case 8:
+		fix->visual = FB_VISUAL_PSEUDOCOLOR;
+		break;
+	case 16:
+	case 32:
+		fix->visual = FB_VISUAL_TRUECOLOR;
+		break;
+	}
+
+	/* set var */
+	var->activate = FB_ACTIVATE_NOW;
+	var->accel_flags = 0;
+	var->vmode = FB_VMODE_NONINTERLACED;
+
+	pr_debug("#1 show info->cmap : \nstart=%d,len=%d,red=%p,green=%p,blue=%p,transp=%p\n",
+		 info->cmap.start, info->cmap.len,
+		 info->cmap.red, info->cmap.green, info->cmap.blue,
+		 info->cmap.transp);
+
+	ret = fb_alloc_cmap(&info->cmap, 256, 0);
+	if (ret < 0) {
+		pr_err("Could not allcate memory for cmap.\n");
+		goto exit;
+	}
+
+	pr_debug("#2 show info->cmap :\nstart=%d,len=%d,red=%p,green=%p,blue=%p,transp=%p\n",
+		 info->cmap.start, info->cmap.len,
+		 info->cmap.red, info->cmap.green, info->cmap.blue,
+		 info->cmap.transp);
+
+exit:
+	lynxfb_ops_check_var(var, info);
+	return ret;
+}
+
+/*	chip specific g_option configuration routine */
+static void sm750fb_setup(struct lynx_share *share, char *src)
+{
+	struct sm750_share *spec_share;
+	char *opt;
+#ifdef CAP_EXPENSION
+	char *exp_res;
+#endif
+	int swap;
+
+
+	spec_share = container_of(share, struct sm750_share, share);
+#ifdef CAP_EXPENSIION
+	exp_res = NULL;
+#endif
+	swap = 0;
+
+	spec_share->state.initParm.chip_clk = 0;
+	spec_share->state.initParm.mem_clk = 0;
+	spec_share->state.initParm.master_clk = 0;
+	spec_share->state.initParm.powerMode = 0;
+	spec_share->state.initParm.setAllEngOff = 0;
+	spec_share->state.initParm.resetMemory = 1;
+
+	/* defaultly turn g_hwcursor on for both view */
+	g_hwcursor = 3;
+
+	if (!src || !*src) {
+		pr_warn("no specific g_option.\n");
+		goto NO_PARAM;
+	}
+
+	while ((opt = strsep(&src, ":")) != NULL && *opt != 0) {
+		pr_err("opt=%s\n", opt);
+		pr_err("src=%s\n", src);
+
+		if (!strncmp(opt, "swap", strlen("swap")))
+			swap = 1;
+		else if (!strncmp(opt, "nocrt", strlen("nocrt")))
+			spec_share->state.nocrt = 1;
+		else if (!strncmp(opt, "36bit", strlen("36bit")))
+			spec_share->state.pnltype = sm750_doubleTFT;
+		else if (!strncmp(opt, "18bit", strlen("18bit")))
+			spec_share->state.pnltype = sm750_dualTFT;
+		else if (!strncmp(opt, "24bit", strlen("24bit")))
+			spec_share->state.pnltype = sm750_24TFT;
+#ifdef CAP_EXPANSION
+		else if (!strncmp(opt, "exp:", strlen("exp:")))
+			exp_res = opt + strlen("exp:");
+#endif
+		else if (!strncmp(opt, "nohwc0", strlen("nohwc0")))
+			g_hwcursor &= ~0x1;
+		else if (!strncmp(opt, "nohwc1", strlen("nohwc1")))
+			g_hwcursor &= ~0x2;
+		else if (!strncmp(opt, "nohwc", strlen("nohwc")))
+			g_hwcursor = 0;
+		else {
+			if (!g_fbmode[0]) {
+				g_fbmode[0] = opt;
+				pr_info("find fbmode0 : %s\n", g_fbmode[0]);
+			} else if (!g_fbmode[1]) {
+				g_fbmode[1] = opt;
+				pr_info("find fbmode1 : %s\n", g_fbmode[1]);
+			} else {
+				pr_warn("How many view you wann set?\n");
+			}
+		}
+	}
+#ifdef CAP_EXPANSION
+	if (getExpRes(exp_res,
+		      &spec_share->state.xLCD,
+		      &spec_share->state.yLCD)) {
+		/* seems exp_res is not valid */
+		spec_share->state.xLCD = spec_share->state.yLCD = 0;
+	}
+#endif
+
+NO_PARAM:
+	if (share->revid != SM750LE_REVISION_ID) {
+		if (share->dual) {
+			if (swap)
+				spec_share->state.dataflow = sm750_dual_swap;
+			else
+				spec_share->state.dataflow = sm750_dual_normal;
+		} else {
+			if (swap)
+				spec_share->state.dataflow = sm750_simul_sec;
+			else
+				spec_share->state.dataflow = sm750_simul_pri;
+		}
+	} else {
+		/* SM750LE only have one crt channel */
+		spec_share->state.dataflow = sm750_simul_sec;
+		/* sm750le do not have complex attributes */
+		spec_share->state.nocrt = 0;
+	}
+}
+
+static int lynxfb_pci_probe(struct pci_dev *pdev,
+			    const struct pci_device_id * ent)
+{
+	struct fb_info *info[] = {NULL, NULL};
+	struct lynx_share *share = NULL;
+
+	struct sm750_share *spec_share = NULL;
+	size_t spec_offset = 0;
+	int fbidx;
+
+
+	/* enable device */
+	if (pci_enable_device(pdev)) {
+		pr_err("can not enable device.\n");
+		goto err_enable;
+	}
+
+	/* though offset of share in sm750_share is 0,
+	 * we use this marcro as the same */
+	spec_offset = offsetof(struct sm750_share, share);
+
+	spec_share = kzalloc(sizeof(*spec_share), GFP_KERNEL);
+	if (!spec_share) {
+		pr_err("Could not allocate memory for share.\n");
+		goto err_share;
+	}
+
+	/* setting share structure */
+	share = (struct lynx_share *)(&(spec_share->share));
+	share->fbinfo[0] = share->fbinfo[1] = NULL;
+	share->devid = pdev->device;
+	share->revid = pdev->revision;
+
+	pr_info("share->revid = %02x\n", share->revid);
+	share->pdev = pdev;
+#ifdef CONFIG_MTRR
+	share->mtrr_off = g_nomtrr;
+	share->mtrr.vram = 0;
+	share->mtrr.vram_added = 0;
+#endif
+	share->accel_off = g_noaccel;
+	share->dual = g_dualview;
+	spin_lock_init(&share->slock);
+
+	if (!share->accel_off) {
+		/* hook deInit and 2d routines, notes that below hw_xxx
+		 * routine can work on most of lynx chips
+		 * if some chip need specific function,
+		 * please hook it in smXXX_set_drv routine */
+		share->accel.de_init = hw_de_init;
+		share->accel.de_fillrect = hw_fillrect;
+		share->accel.de_copyarea = hw_copyarea;
+		share->accel.de_imageblit = hw_imageblit;
+		pr_info("enable 2d acceleration\n");
+	} else {
+		pr_info("disable 2d acceleration\n");
+	}
+
+	/* call chip specific setup routine  */
+	sm750fb_setup(share, g_settings);
+
+	/* call chip specific mmap routine */
+	if (hw_sm750_map(share, pdev)) {
+		pr_err("Memory map failed\n");
+		goto err_map;
+	}
+
+#ifdef CONFIG_MTRR
+	if (!share->mtrr_off) {
+		pr_info("enable mtrr\n");
+		share->mtrr.vram = mtrr_add(share->vidmem_start,
+					    share->vidmem_size,
+					    MTRR_TYPE_WRCOMB, 1);
+
+		if (share->mtrr.vram < 0) {
+			/* don't block driver with the failure of MTRR */
+			pr_err("Unable to setup MTRR.\n");
+		} else {
+			share->mtrr.vram_added = 1;
+			pr_info("MTRR added succesfully\n");
+		}
+	}
+#endif
+
+	memset_io(share->pvMem, 0, share->vidmem_size);
+
+	pr_info("sm%3x mmio address = %p\n", share->devid, share->pvReg);
+
+	pci_set_drvdata(pdev, share);
+
+	/* call chipInit routine */
+	hw_sm750_inithw(share, pdev);
+
+	/* allocate frame buffer info structor according to g_dualview */
+	fbidx = 0;
+ALLOC_FB:
+	info[fbidx] = framebuffer_alloc(sizeof(struct lynxfb_par), &pdev->dev);
+	if (!info[fbidx]) {
+		pr_err("Could not allocate framebuffer #%d.\n", fbidx);
+		if (fbidx == 0)
+			goto err_info0_alloc;
+		else
+			goto err_info1_alloc;
+	} else {
+		struct lynxfb_par *par;
+		int errno;
+
+		pr_info("framebuffer #%d alloc okay\n", fbidx);
+		share->fbinfo[fbidx] = info[fbidx];
+		par = info[fbidx]->par;
+		par->share = share;
+
+		/* set fb_info structure */
+		if (lynxfb_set_fbinfo(info[fbidx], fbidx)) {
+			pr_err("Failed to initial fb_info #%d.\n", fbidx);
+			if (fbidx == 0)
+				goto err_info0_set;
+			else
+				goto err_info1_set;
+		}
+
+		/* register frame buffer */
+		pr_info("Ready to register framebuffer #%d.\n", fbidx);
+		errno = register_framebuffer(info[fbidx]);
+		if (errno < 0) {
+			pr_err("Failed to register fb_info #%d. err %d\n",
+			       fbidx,
+			       errno);
+			if (fbidx == 0)
+				goto err_register0;
+			else
+				goto err_register1;
+		}
+		pr_info("Accomplished register framebuffer #%d.\n", fbidx);
+	}
+
+	/* no dual view by far */
+	fbidx++;
+	if (share->dual && fbidx < 2)
+		goto ALLOC_FB;
+
+	return 0;
+
+err_register1:
+err_info1_set:
+	framebuffer_release(info[1]);
+err_info1_alloc:
+	unregister_framebuffer(info[0]);
+err_register0:
+err_info0_set:
+	framebuffer_release(info[0]);
+err_info0_alloc:
+err_map:
+	kfree(spec_share);
+err_share:
+err_enable:
+	return -ENODEV;
+}
+
+static void __exit lynxfb_pci_remove(struct pci_dev *pdev)
+{
+	struct fb_info *info;
+	struct lynx_share *share;
+	void *spec_share;
+	struct lynxfb_par *par;
+	int cnt;
+
+	cnt = 2;
+	share = pci_get_drvdata(pdev);
+
+	while (cnt-- > 0) {
+		info = share->fbinfo[cnt];
+		if (!info)
+			continue;
+		par = info->par;
+
+		unregister_framebuffer(info);
+		/* clean crtc & output allocations */
+		par->crtc.clear(&par->crtc);
+		par->output.clear(&par->output);
+		/* release frame buffer */
+		framebuffer_release(info);
+	}
+#ifdef CONFIG_MTRR
+	if (share->mtrr.vram_added)
+		mtrr_del(share->mtrr.vram,
+			 share->vidmem_start,
+			 share->vidmem_size);
+#endif
+
+	iounmap(share->pvReg);
+	iounmap(share->pvMem);
+	spec_share = container_of(share, struct sm750_share, share);
+	kfree(g_settings);
+	kfree(spec_share);
+	pci_set_drvdata(pdev, NULL);
+}
+
+static int __init lynxfb_setup(char *options)
+{
+	int len;
+	char *opt, *tmp;
+
+
+	if (!options || !*options) {
+		pr_warn("no options.\n");
+		return 0;
+	}
+
+	pr_info("options:%s\n", options);
+
+	len = strlen(options) + 1;
+	g_settings = kzalloc(len, GFP_KERNEL);
+	if (!g_settings)
+		return -ENOMEM;
+
+	tmp = g_settings;
+
+	/*	Notes:
+		char * strsep(char **s,const char * ct);
+		@s: the string to be searched
+		@ct :the characters to search for
+
+		strsep() updates @options to pointer after the first found token
+		it also returns the pointer ahead the token.
+		*/
+	while ((opt = strsep(&options, ":")) != NULL) {
+		/* options that mean for any lynx chips are configured here */
+		if (!strncmp(opt, "noaccel", strlen("noaccel")))
+			g_noaccel = 1;
+#ifdef CONFIG_MTRR
+		else if (!strncmp(opt, "nomtrr", strlen("nomtrr")))
+			g_nomtrr = 1;
+#endif
+		else if (!strncmp(opt, "dual", strlen("dual")))
+			g_dualview = 1;
+		else {
+			strcat(tmp, opt);
+			tmp += strlen(opt);
+			if (options != NULL)
+				*tmp++ = ':';
+			else
+				*tmp++ = 0;
+		}
+	}
+
+	/* misc g_settings are transport to chip specific routines */
+	pr_info("parameter left for chip specific analysis:%s\n", g_settings);
+	return 0;
+}
+
+static struct pci_device_id smi_pci_table[] = {
+	{ PCI_DEVICE(0x126f, 0x0750), },
+	{0,}
+};
+
+MODULE_DEVICE_TABLE(pci, smi_pci_table);
+
+static struct pci_driver lynxfb_driver = {
+	.name =		"sm750fb",
+	.id_table =	smi_pci_table,
+	.probe =	lynxfb_pci_probe,
+	.remove =	lynxfb_pci_remove,
+#ifdef CONFIG_PM
+	.suspend = lynxfb_suspend,
+	.resume = lynxfb_resume,
+#endif
+};
+
+
+static int __init lynxfb_init(void)
+{
+	char *option;
+	int ret;
+
+#ifdef MODULE
+	option = g_option;
+#else
+	if (fb_get_options("sm750fb", &option))
+		return -ENODEV;
+#endif
+
+	lynxfb_setup(option);
+	ret = pci_register_driver(&lynxfb_driver);
+	return ret;
+}
+module_init(lynxfb_init);
+
+static void __exit lynxfb_exit(void)
+{
+	pci_unregister_driver(&lynxfb_driver);
+}
+module_exit(lynxfb_exit);
+
+module_param(g_option, charp, S_IRUGO);
+
+MODULE_PARM_DESC(g_option,
+		 "\n\t\tCommon options:\n"
+		 "\t\tnoaccel:disable 2d capabilities\n"
+		 "\t\tnomtrr:disable MTRR attribute for video memory\n"
+		 "\t\tdualview:dual frame buffer feature enabled\n"
+		 "\t\tnohwc:disable hardware cursor\n"
+		 "\t\tUsual example:\n"
+		 "\t\tinsmod ./sm750fb.ko g_option=\"noaccel,nohwc,1280x1024-8@60\"\n"
+		 );
+
+MODULE_AUTHOR("monk liu <monk.liu@siliconmotion.com>");
+MODULE_AUTHOR("Sudip Mukherjee <sudip@vectorindia.org>");
+MODULE_DESCRIPTION("Frame buffer driver for SM750 chipset");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/staging/sm750fb/sm750.h b/drivers/staging/sm750fb/sm750.h
new file mode 100644
index 0000000..0847d2b
--- /dev/null
+++ b/drivers/staging/sm750fb/sm750.h
@@ -0,0 +1,186 @@
+#ifndef LYNXDRV_H_
+#define LYNXDRV_H_
+
+
+
+#define FB_ACCEL_SMI 0xab
+/* please use revision id to distinguish sm750le and sm750*/
+#define SPC_SM750 	0
+
+//#define SPC_SM750LE 8
+
+#define MB(x) ((x)<<20)
+#define MHZ(x) ((x) * 1000000)
+/* align should be 2,4,8,16 */
+#define PADDING(align,data) (((data)+(align)-1)&(~((align) -1)))
+extern int smi_indent;
+
+
+struct lynx_accel{
+	/* base virtual address of DPR registers */
+	volatile unsigned char __iomem * dprBase;
+	/* base virtual address of de data port */
+	volatile unsigned char __iomem * dpPortBase;
+
+	/* function fointers */
+	void (*de_init)(struct lynx_accel *);
+
+	int (*de_wait)(void);/* see if hardware ready to work */
+
+	int (*de_fillrect)(struct lynx_accel *,u32,u32,u32,
+							u32,u32,u32,u32,u32,u32);
+
+	int (*de_copyarea)(struct lynx_accel *,u32,u32,u32,u32,
+						u32,u32,u32,u32,
+						u32,u32,u32,u32);
+
+	int (*de_imageblit)(struct lynx_accel *,const char *,u32,u32,u32,
+						u32,u32,u32,u32,u32,u32,u32,u32,u32);
+
+};
+
+/* 	lynx_share stands for a presentation of two frame buffer
+	that use one smi adaptor , it is similar to a basic class of C++
+*/
+struct lynx_share{
+	/* common members */
+	u16 devid;
+	u8 revid;
+	struct pci_dev * pdev;
+	struct fb_info * fbinfo[2];
+	struct lynx_accel accel;
+	int accel_off;
+	int dual;
+#ifdef CONFIG_MTRR
+		int mtrr_off;
+		struct{
+			int vram;
+			int vram_added;
+		}mtrr;
+#endif
+	/* all smi graphic adaptor got below attributes */
+	unsigned long vidmem_start;
+	unsigned long vidreg_start;
+	__u32 vidmem_size;
+	__u32 vidreg_size;
+	void __iomem * pvReg;
+	unsigned char __iomem * pvMem;
+	/* locks*/
+	spinlock_t slock;
+	/* function pointers */
+	void (*suspend)(struct lynx_share*);
+	void (*resume)(struct lynx_share*);
+};
+
+struct lynx_cursor{
+	/* cursor width ,height and size */
+	int w;
+	int h;
+	int size;
+	/* hardware limitation */
+	int maxW;
+	int maxH;
+	/* base virtual address and offset  of cursor image */
+	char __iomem * vstart;
+	int offset;
+	/* mmio addr of hw cursor */
+	volatile char __iomem * mmio;
+	/* the lynx_share of this adaptor */
+	struct lynx_share * share;
+	/* proc_routines */
+	void (*enable)(struct lynx_cursor *);
+	void (*disable)(struct lynx_cursor *);
+	void (*setSize)(struct lynx_cursor *,int,int);
+	void (*setPos)(struct lynx_cursor *,int,int);
+	void (*setColor)(struct lynx_cursor *,u32,u32);
+	void (*setData)(struct lynx_cursor *,u16,const u8*,const u8*);
+};
+
+struct lynxfb_crtc{
+	unsigned char __iomem * vCursor;//virtual address of cursor
+	unsigned char __iomem * vScreen;//virtual address of on_screen
+	int oCursor;//cursor address offset in vidmem
+	int oScreen;//onscreen address offset in vidmem
+	int channel;/* which channel this crtc stands for*/
+	resource_size_t vidmem_size;/* this view's video memory max size */
+
+	/* below attributes belong to info->fix, their value depends on specific adaptor*/
+	u16 line_pad;/* padding information:0,1,2,4,8,16,... */
+	u16 xpanstep;
+	u16 ypanstep;
+	u16 ywrapstep;
+
+	void * priv;
+
+	int(*proc_setMode)(struct lynxfb_crtc*,
+						struct fb_var_screeninfo*,
+						struct fb_fix_screeninfo*);
+
+	int(*proc_checkMode)(struct lynxfb_crtc*,struct fb_var_screeninfo*);
+	int(*proc_setColReg)(struct lynxfb_crtc*,ushort,ushort,ushort,ushort);
+	void (*clear)(struct lynxfb_crtc*);
+        /* pan display */
+	int (*proc_panDisplay)(struct lynxfb_crtc *,
+			       const struct fb_var_screeninfo *,
+			       const struct fb_info *);
+	/* cursor information */
+	struct lynx_cursor cursor;
+};
+
+struct lynxfb_output{
+	int dpms;
+	int paths;
+	/* 	which paths(s) this output stands for,for sm750:
+		paths=1:means output for panel paths
+		paths=2:means output for crt paths
+		paths=3:means output for both panel and crt paths
+	*/
+
+	int * channel;
+	/* 	which channel these outputs linked with,for sm750:
+		*channel=0 means primary channel
+		*channel=1 means secondary channel
+		output->channel ==> &crtc->channel
+	*/
+	void * priv;
+
+	int(*proc_setMode)(struct lynxfb_output*,
+						struct fb_var_screeninfo*,
+						struct fb_fix_screeninfo*);
+
+	int(*proc_checkMode)(struct lynxfb_output*,struct fb_var_screeninfo*);
+	int(*proc_setBLANK)(struct lynxfb_output*,int);
+	void  (*clear)(struct lynxfb_output*);
+};
+
+struct lynxfb_par{
+	/* either 0 or 1 for dual head adaptor,0 is the older one registered */
+	int index;
+	unsigned int pseudo_palette[256];
+	struct lynxfb_crtc crtc;
+	struct lynxfb_output output;
+	struct fb_info * info;
+	struct lynx_share * share;
+};
+
+#ifndef offsetof
+#define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER)
+#endif
+
+
+#define PS_TO_HZ(ps)	\
+			({ 	\
+			unsigned long long hz = 1000*1000*1000*1000ULL;	\
+			do_div(hz,ps);	\
+			(unsigned long)hz;})
+
+static inline unsigned long ps_to_hz(unsigned int psvalue)
+{
+	unsigned long long numerator=1000*1000*1000*1000ULL;
+	/* 10^12 / picosecond period gives frequency in Hz */
+	do_div(numerator, psvalue);
+	return (unsigned long)numerator;
+}
+
+
+#endif
diff --git a/drivers/staging/sm750fb/sm750_accel.c b/drivers/staging/sm750fb/sm750_accel.c
new file mode 100644
index 0000000..c5a3726
--- /dev/null
+++ b/drivers/staging/sm750fb/sm750_accel.c
@@ -0,0 +1,437 @@
+#include<linux/module.h>
+#include<linux/kernel.h>
+#include<linux/errno.h>
+#include<linux/string.h>
+#include<linux/mm.h>
+#include<linux/slab.h>
+#include<linux/delay.h>
+#include<linux/fb.h>
+#include<linux/ioport.h>
+#include<linux/init.h>
+#include<linux/pci.h>
+#include<linux/vmalloc.h>
+#include<linux/pagemap.h>
+#include <linux/console.h>
+#include<linux/platform_device.h>
+#include<linux/screen_info.h>
+
+#include "sm750.h"
+#include "sm750_accel.h"
+#include "sm750_help.h"
+static inline void write_dpr(struct lynx_accel * accel,int offset,u32 regValue)
+{
+	writel(regValue,accel->dprBase + offset);
+}
+
+static inline u32 read_dpr(struct lynx_accel * accel,int offset)
+{
+	return readl(accel->dprBase + offset);
+}
+
+static inline void write_dpPort(struct lynx_accel * accel,u32 data)
+{
+	writel(data,accel->dpPortBase);
+}
+
+void hw_de_init(struct lynx_accel * accel)
+{
+	/* setup 2d engine registers */
+	u32 reg,clr;
+	
+	write_dpr(accel,DE_MASKS,0xFFFFFFFF);
+
+	/* dpr1c */
+	reg = FIELD_SET(0,DE_STRETCH_FORMAT,PATTERN_XY,NORMAL)|
+		FIELD_VALUE(0,DE_STRETCH_FORMAT,PATTERN_Y,0)|
+		FIELD_VALUE(0,DE_STRETCH_FORMAT,PATTERN_X,0)|
+		FIELD_SET(0,DE_STRETCH_FORMAT,ADDRESSING,XY)|
+		FIELD_VALUE(0,DE_STRETCH_FORMAT,SOURCE_HEIGHT,3);
+
+	clr = FIELD_CLEAR(DE_STRETCH_FORMAT,PATTERN_XY)&
+		FIELD_CLEAR(DE_STRETCH_FORMAT,PATTERN_Y)&
+		FIELD_CLEAR(DE_STRETCH_FORMAT,PATTERN_X)&
+		FIELD_CLEAR(DE_STRETCH_FORMAT,ADDRESSING)&
+		FIELD_CLEAR(DE_STRETCH_FORMAT,SOURCE_HEIGHT);
+
+	/* DE_STRETCH bpp format need be initilized in setMode routine */
+	write_dpr(accel,DE_STRETCH_FORMAT,(read_dpr(accel,DE_STRETCH_FORMAT) & clr) | reg);
+
+	/* disable clipping and transparent */
+	write_dpr(accel,DE_CLIP_TL,0);//dpr2c
+	write_dpr(accel,DE_CLIP_BR,0);//dpr30
+
+	write_dpr(accel,DE_COLOR_COMPARE_MASK,0);//dpr24
+	write_dpr(accel,DE_COLOR_COMPARE,0);
+
+	reg = FIELD_SET(0,DE_CONTROL,TRANSPARENCY,DISABLE)|
+		FIELD_SET(0,DE_CONTROL,TRANSPARENCY_MATCH,OPAQUE)|
+		FIELD_SET(0,DE_CONTROL,TRANSPARENCY_SELECT,SOURCE);
+
+	clr = FIELD_CLEAR(DE_CONTROL,TRANSPARENCY)&
+		FIELD_CLEAR(DE_CONTROL,TRANSPARENCY_MATCH)&
+		FIELD_CLEAR(DE_CONTROL,TRANSPARENCY_SELECT);
+
+	/* dpr0c */
+	write_dpr(accel,DE_CONTROL,(read_dpr(accel,DE_CONTROL)&clr)|reg);
+}
+
+/* set2dformat only be called from setmode functions
+ * but if you need dual framebuffer driver,need call set2dformat
+ * every time you use 2d function */
+
+void hw_set2dformat(struct lynx_accel * accel,int fmt)
+{
+	u32 reg;
+	
+	/* fmt=0,1,2 for 8,16,32,bpp on sm718/750/502 */
+	reg = read_dpr(accel,DE_STRETCH_FORMAT);
+	reg = FIELD_VALUE(reg,DE_STRETCH_FORMAT,PIXEL_FORMAT,fmt);
+	write_dpr(accel,DE_STRETCH_FORMAT,reg);
+}
+
+int hw_fillrect(struct lynx_accel * accel,
+				u32 base,u32 pitch,u32 Bpp,
+				u32 x,u32 y,u32 width,u32 height,
+				u32 color,u32 rop)
+{
+	u32 deCtrl;
+
+	if(accel->de_wait() != 0)
+	{
+		/* int time wait and always busy,seems hardware
+		 * got something error */
+		pr_debug("%s:De engine always bussy\n",__func__);
+		return -1;
+	}
+
+	write_dpr(accel,DE_WINDOW_DESTINATION_BASE,base);//dpr40
+	write_dpr(accel,DE_PITCH,
+			FIELD_VALUE(0,DE_PITCH,DESTINATION,pitch/Bpp)|
+			FIELD_VALUE(0,DE_PITCH,SOURCE,pitch/Bpp));//dpr10
+
+	write_dpr(accel,DE_WINDOW_WIDTH,
+			FIELD_VALUE(0,DE_WINDOW_WIDTH,DESTINATION,pitch/Bpp)|
+			FIELD_VALUE(0,DE_WINDOW_WIDTH,SOURCE,pitch/Bpp));//dpr44
+
+	write_dpr(accel,DE_FOREGROUND,color);//DPR14
+
+	write_dpr(accel,DE_DESTINATION,
+			FIELD_SET(0,DE_DESTINATION,WRAP,DISABLE)|
+			FIELD_VALUE(0,DE_DESTINATION,X,x)|
+			FIELD_VALUE(0,DE_DESTINATION,Y,y));//dpr4
+
+	write_dpr(accel,DE_DIMENSION,
+			FIELD_VALUE(0,DE_DIMENSION,X,width)|
+			FIELD_VALUE(0,DE_DIMENSION,Y_ET,height));//dpr8
+
+	deCtrl =
+		FIELD_SET(0,DE_CONTROL,STATUS,START)|
+		FIELD_SET(0,DE_CONTROL,DIRECTION,LEFT_TO_RIGHT)|
+		FIELD_SET(0,DE_CONTROL,LAST_PIXEL,ON)|
+		FIELD_SET(0,DE_CONTROL,COMMAND,RECTANGLE_FILL)|
+		FIELD_SET(0,DE_CONTROL,ROP_SELECT,ROP2)|
+		FIELD_VALUE(0,DE_CONTROL,ROP,rop);//dpr0xc
+
+	write_dpr(accel,DE_CONTROL,deCtrl);
+	return 0;
+}
+
+int hw_copyarea(
+struct lynx_accel * accel,
+unsigned int sBase,  /* Address of source: offset in frame buffer */
+unsigned int sPitch, /* Pitch value of source surface in BYTE */
+unsigned int sx,
+unsigned int sy,     /* Starting coordinate of source surface */
+unsigned int dBase,  /* Address of destination: offset in frame buffer */
+unsigned int dPitch, /* Pitch value of destination surface in BYTE */
+unsigned int Bpp,    /* Color depth of destination surface */
+unsigned int dx,
+unsigned int dy,     /* Starting coordinate of destination surface */
+unsigned int width,
+unsigned int height, /* width and height of rectangle in pixel value */
+unsigned int rop2)   /* ROP value */
+{
+    unsigned int nDirection, de_ctrl;
+    int opSign;
+    nDirection = LEFT_TO_RIGHT;
+	/* Direction of ROP2 operation: 1 = Left to Right, (-1) = Right to Left */
+    opSign = 1;
+    de_ctrl = 0;
+
+    /* If source and destination are the same surface, need to check for overlay cases */
+    if (sBase == dBase && sPitch == dPitch)
+    {
+        /* Determine direction of operation */
+        if (sy < dy)
+        {
+            /* +----------+
+               |S         |
+               |   +----------+
+               |   |      |   |
+               |   |      |   |
+               +---|------+   |
+                   |         D|
+                   +----------+ */
+
+            nDirection = BOTTOM_TO_TOP;
+        }
+        else if (sy > dy)
+        {
+            /* +----------+
+               |D         |
+               |   +----------+
+               |   |      |   |
+               |   |      |   |
+               +---|------+   |
+                   |         S|
+                   +----------+ */
+
+            nDirection = TOP_TO_BOTTOM;
+        }
+        else
+        {
+            /* sy == dy */
+
+            if (sx <= dx)
+            {
+                /* +------+---+------+
+                   |S     |   |     D|
+                   |      |   |      |
+                   |      |   |      |
+                   |      |   |      |
+                   +------+---+------+ */
+
+                nDirection = RIGHT_TO_LEFT;
+            }
+            else
+            {
+                /* sx > dx */
+
+                /* +------+---+------+
+                   |D     |   |     S|
+                   |      |   |      |
+                   |      |   |      |
+                   |      |   |      |
+                   +------+---+------+ */
+
+                nDirection = LEFT_TO_RIGHT;
+            }
+        }
+    }
+
+    if ((nDirection == BOTTOM_TO_TOP) || (nDirection == RIGHT_TO_LEFT))
+    {
+        sx += width - 1;
+        sy += height - 1;
+        dx += width - 1;
+        dy += height - 1;
+        opSign = (-1);
+    }
+
+    /* Note:
+       DE_FOREGROUND are DE_BACKGROUND are don't care.
+       DE_COLOR_COMPARE and DE_COLOR_COMPARE_MAKS are set by set deSetTransparency().
+    */
+
+    /* 2D Source Base.
+       It is an address offset (128 bit aligned) from the beginning of frame buffer.
+    */
+    write_dpr(accel,DE_WINDOW_SOURCE_BASE, sBase);//dpr40
+
+    /* 2D Destination Base.
+       It is an address offset (128 bit aligned) from the beginning of frame buffer.
+    */
+    write_dpr(accel,DE_WINDOW_DESTINATION_BASE, dBase);//dpr44
+
+#if 0
+    /* Program pitch (distance between the 1st points of two adjacent lines).
+       Note that input pitch is BYTE value, but the 2D Pitch register uses
+       pixel values. Need Byte to pixel convertion.
+    */
+	if(Bpp == 3){
+			sx *= 3;
+			dx *= 3;
+			width *= 3;
+		write_dpr(accel,DE_PITCH,
+				FIELD_VALUE(0, DE_PITCH, DESTINATION, dPitch) |
+				FIELD_VALUE(0, DE_PITCH, SOURCE,      sPitch));//dpr10
+	}
+	else
+#endif
+	{
+		write_dpr(accel,DE_PITCH,
+				FIELD_VALUE(0, DE_PITCH, DESTINATION, (dPitch/Bpp)) |
+				FIELD_VALUE(0, DE_PITCH, SOURCE,      (sPitch/Bpp)));//dpr10
+	}
+
+    /* Screen Window width in Pixels.
+       2D engine uses this value to calculate the linear address in frame buffer for a given point.
+    */
+    write_dpr(accel,DE_WINDOW_WIDTH,
+        FIELD_VALUE(0, DE_WINDOW_WIDTH, DESTINATION, (dPitch/Bpp)) |
+        FIELD_VALUE(0, DE_WINDOW_WIDTH, SOURCE,      (sPitch/Bpp)));//dpr3c
+
+	if (accel->de_wait() != 0){
+		return -1;
+	}
+
+    {
+
+        write_dpr(accel,DE_SOURCE,
+            FIELD_SET  (0, DE_SOURCE, WRAP, DISABLE) |
+            FIELD_VALUE(0, DE_SOURCE, X_K1, sx)   |
+            FIELD_VALUE(0, DE_SOURCE, Y_K2, sy));//dpr0
+        write_dpr(accel,DE_DESTINATION,
+            FIELD_SET  (0, DE_DESTINATION, WRAP, DISABLE) |
+            FIELD_VALUE(0, DE_DESTINATION, X,    dx)  |
+            FIELD_VALUE(0, DE_DESTINATION, Y,    dy));//dpr04
+        write_dpr(accel,DE_DIMENSION,
+            FIELD_VALUE(0, DE_DIMENSION, X,    width) |
+            FIELD_VALUE(0, DE_DIMENSION, Y_ET, height));//dpr08
+
+        de_ctrl =
+            FIELD_VALUE(0, DE_CONTROL, ROP, rop2) |
+            FIELD_SET(0, DE_CONTROL, ROP_SELECT, ROP2) |
+            FIELD_SET(0, DE_CONTROL, COMMAND, BITBLT) |
+            ((nDirection == RIGHT_TO_LEFT) ?
+            FIELD_SET(0, DE_CONTROL, DIRECTION, RIGHT_TO_LEFT)
+            : FIELD_SET(0, DE_CONTROL, DIRECTION, LEFT_TO_RIGHT)) |
+            FIELD_SET(0, DE_CONTROL, STATUS, START);
+		write_dpr(accel,DE_CONTROL,de_ctrl);//dpr0c
+    }
+
+    return 0;
+}
+
+static unsigned int deGetTransparency(struct lynx_accel * accel)
+{
+    unsigned int de_ctrl;
+
+    de_ctrl = read_dpr(accel,DE_CONTROL);
+
+    de_ctrl &=
+        FIELD_MASK(DE_CONTROL_TRANSPARENCY_MATCH) |
+        FIELD_MASK(DE_CONTROL_TRANSPARENCY_SELECT)|
+        FIELD_MASK(DE_CONTROL_TRANSPARENCY);
+
+    return de_ctrl;
+}
+
+int hw_imageblit(struct lynx_accel *accel,
+		 const char *pSrcbuf, /* pointer to start of source buffer in system memory */
+		 u32 srcDelta,          /* Pitch value (in bytes) of the source buffer, +ive means top down and -ive mean button up */
+		 u32 startBit, /* Mono data can start at any bit in a byte, this value should be 0 to 7 */
+		 u32 dBase,    /* Address of destination: offset in frame buffer */
+		 u32 dPitch,   /* Pitch value of destination surface in BYTE */
+		 u32 bytePerPixel,      /* Color depth of destination surface */
+		 u32 dx,
+		 u32 dy,       /* Starting coordinate of destination surface */
+		 u32 width,
+		 u32 height,   /* width and height of rectange in pixel value */
+		 u32 fColor,   /* Foreground color (corresponding to a 1 in the monochrome data */
+		 u32 bColor,   /* Background color (corresponding to a 0 in the monochrome data */
+		 u32 rop2)     /* ROP value */
+{
+    unsigned int ulBytesPerScan;
+    unsigned int ul4BytesPerScan;
+    unsigned int ulBytesRemain;
+    unsigned int de_ctrl = 0;
+    unsigned char ajRemain[4];
+    int i, j;
+
+    startBit &= 7; /* Just make sure the start bit is within legal range */
+    ulBytesPerScan = (width + startBit + 7) / 8;
+    ul4BytesPerScan = ulBytesPerScan & ~3;
+    ulBytesRemain = ulBytesPerScan & 3;
+
+	if(accel->de_wait() != 0)
+    {
+//		inf_msg("*** ImageBlit return -1 ***\n");
+        return -1;
+    }
+
+    /* 2D Source Base.
+       Use 0 for HOST Blt.
+    */
+    write_dpr(accel,DE_WINDOW_SOURCE_BASE, 0);
+
+    /* 2D Destination Base.
+       It is an address offset (128 bit aligned) from the beginning of frame buffer.
+    */
+    write_dpr(accel,DE_WINDOW_DESTINATION_BASE, dBase);
+#if 0
+    /* Program pitch (distance between the 1st points of two adjacent lines).
+       Note that input pitch is BYTE value, but the 2D Pitch register uses
+       pixel values. Need Byte to pixel convertion.
+    */
+	if(bytePerPixel == 3 ){
+		dx *= 3;
+		width *= 3;
+		startBit *= 3;
+		write_dpr(accel,DE_PITCH,
+				FIELD_VALUE(0, DE_PITCH, DESTINATION, dPitch) |
+				FIELD_VALUE(0, DE_PITCH, SOURCE,      dPitch));//dpr10
+
+	}
+	else
+#endif
+	{
+		write_dpr(accel,DE_PITCH,
+				FIELD_VALUE(0, DE_PITCH, DESTINATION, dPitch/bytePerPixel) |
+				FIELD_VALUE(0, DE_PITCH, SOURCE,      dPitch/bytePerPixel));//dpr10
+	}
+
+    /* Screen Window width in Pixels.
+       2D engine uses this value to calculate the linear address in frame buffer for a given point.
+    */
+    write_dpr(accel,DE_WINDOW_WIDTH,
+        FIELD_VALUE(0, DE_WINDOW_WIDTH, DESTINATION, (dPitch/bytePerPixel)) |
+        FIELD_VALUE(0, DE_WINDOW_WIDTH, SOURCE,      (dPitch/bytePerPixel)));
+
+    /* Note: For 2D Source in Host Write, only X_K1_MONO field is needed, and Y_K2 field is not used.
+             For mono bitmap, use startBit for X_K1. */
+    write_dpr(accel,DE_SOURCE,
+        FIELD_SET  (0, DE_SOURCE, WRAP, DISABLE)       |
+        FIELD_VALUE(0, DE_SOURCE, X_K1_MONO, startBit));//dpr00
+
+    write_dpr(accel,DE_DESTINATION,
+        FIELD_SET  (0, DE_DESTINATION, WRAP, DISABLE) |
+        FIELD_VALUE(0, DE_DESTINATION, X,    dx)    |
+        FIELD_VALUE(0, DE_DESTINATION, Y,    dy));//dpr04
+
+    write_dpr(accel,DE_DIMENSION,
+        FIELD_VALUE(0, DE_DIMENSION, X,    width) |
+        FIELD_VALUE(0, DE_DIMENSION, Y_ET, height));//dpr08
+
+    write_dpr(accel,DE_FOREGROUND, fColor);
+    write_dpr(accel,DE_BACKGROUND, bColor);
+
+	de_ctrl = FIELD_VALUE(0, DE_CONTROL, ROP, rop2)         |
+		FIELD_SET(0, DE_CONTROL, ROP_SELECT, ROP2)    |
+		FIELD_SET(0, DE_CONTROL, COMMAND, HOST_WRITE) |
+		FIELD_SET(0, DE_CONTROL, HOST, MONO)          |
+		FIELD_SET(0, DE_CONTROL, STATUS, START);
+
+	write_dpr(accel,DE_CONTROL, de_ctrl | deGetTransparency(accel));
+
+    /* Write MONO data (line by line) to 2D Engine data port */
+    for (i=0; i<height; i++)
+    {
+        /* For each line, send the data in chunks of 4 bytes */
+        for (j=0; j<(ul4BytesPerScan/4); j++)
+        {
+            write_dpPort(accel, *(unsigned int *)(pSrcbuf + (j * 4)));
+        }
+
+        if (ulBytesRemain)
+        {
+            memcpy(ajRemain, pSrcbuf+ul4BytesPerScan, ulBytesRemain);
+            write_dpPort(accel, *(unsigned int *)ajRemain);
+        }
+
+        pSrcbuf += srcDelta;
+    }
+
+    return 0;
+}
+
diff --git a/drivers/staging/sm750fb/sm750_accel.h b/drivers/staging/sm750fb/sm750_accel.h
new file mode 100644
index 0000000..3ee0bd8
--- /dev/null
+++ b/drivers/staging/sm750fb/sm750_accel.h
@@ -0,0 +1,275 @@
+#ifndef ACCEL_H__
+#define ACCEL_H__
+
+#define HW_ROP2_COPY 0xc
+#define HW_ROP2_XOR 0x6
+
+/* notes: below address are the offset value from de_base_address (0x100000)*/
+
+/* for sm718/750/502 de_base is at mmreg_1mb*/
+#define DE_BASE_ADDR_TYPE1 	0x100000
+/* for sm712,de_base is at mmreg_32kb */
+#define DE_BASE_ADDR_TYPE2  0x8000
+/* for sm722,de_base is at mmreg_0 */
+#define DE_BASE_ADDR_TYPE3 0
+
+/* type1 data port address is at mmreg_0x110000*/
+#define DE_PORT_ADDR_TYPE1 0x110000
+/* for sm712,data port address is at mmreg_0 */
+#define DE_PORT_ADDR_TYPE2 0x100000
+/* for sm722,data port address is at mmreg_1mb */
+#define DE_PORT_ADDR_TYPE3 0x100000
+
+#define DE_SOURCE                                       0x0
+#define DE_SOURCE_WRAP                                  31:31
+#define DE_SOURCE_WRAP_DISABLE                          0
+#define DE_SOURCE_WRAP_ENABLE                           1
+#define DE_SOURCE_X_K1                                  29:16
+#define DE_SOURCE_Y_K2                                  15:0
+#define DE_SOURCE_X_K1_MONO 							20:16
+
+#define DE_DESTINATION                                  0x4
+#define DE_DESTINATION_WRAP                             31:31
+#define DE_DESTINATION_WRAP_DISABLE                     0
+#define DE_DESTINATION_WRAP_ENABLE                      1
+#define DE_DESTINATION_X                                28:16
+#define DE_DESTINATION_Y                                15:0
+
+#define DE_DIMENSION                                    0x8
+#define DE_DIMENSION_X                                  28:16
+#define DE_DIMENSION_Y_ET                               15:0
+
+#define DE_CONTROL                                      0xC
+#define DE_CONTROL_STATUS                               31:31
+#define DE_CONTROL_STATUS_STOP                          0
+#define DE_CONTROL_STATUS_START                         1
+#define DE_CONTROL_PATTERN                              30:30
+#define DE_CONTROL_PATTERN_MONO                         0
+#define DE_CONTROL_PATTERN_COLOR                        1
+#define DE_CONTROL_UPDATE_DESTINATION_X                 29:29
+#define DE_CONTROL_UPDATE_DESTINATION_X_DISABLE         0
+#define DE_CONTROL_UPDATE_DESTINATION_X_ENABLE          1
+#define DE_CONTROL_QUICK_START                          28:28
+#define DE_CONTROL_QUICK_START_DISABLE                  0
+#define DE_CONTROL_QUICK_START_ENABLE                   1
+#define DE_CONTROL_DIRECTION                            27:27
+#define DE_CONTROL_DIRECTION_LEFT_TO_RIGHT              0
+#define DE_CONTROL_DIRECTION_RIGHT_TO_LEFT              1
+#define DE_CONTROL_MAJOR                                26:26
+#define DE_CONTROL_MAJOR_X                              0
+#define DE_CONTROL_MAJOR_Y                              1
+#define DE_CONTROL_STEP_X                               25:25
+#define DE_CONTROL_STEP_X_POSITIVE                      1
+#define DE_CONTROL_STEP_X_NEGATIVE                      0
+#define DE_CONTROL_STEP_Y                               24:24
+#define DE_CONTROL_STEP_Y_POSITIVE                      1
+#define DE_CONTROL_STEP_Y_NEGATIVE                      0
+#define DE_CONTROL_STRETCH                              23:23
+#define DE_CONTROL_STRETCH_DISABLE                      0
+#define DE_CONTROL_STRETCH_ENABLE                       1
+#define DE_CONTROL_HOST                                 22:22
+#define DE_CONTROL_HOST_COLOR                           0
+#define DE_CONTROL_HOST_MONO                            1
+#define DE_CONTROL_LAST_PIXEL                           21:21
+#define DE_CONTROL_LAST_PIXEL_OFF                       0
+#define DE_CONTROL_LAST_PIXEL_ON                        1
+#define DE_CONTROL_COMMAND                              20:16
+#define DE_CONTROL_COMMAND_BITBLT                       0
+#define DE_CONTROL_COMMAND_RECTANGLE_FILL               1
+#define DE_CONTROL_COMMAND_DE_TILE                      2
+#define DE_CONTROL_COMMAND_TRAPEZOID_FILL               3
+#define DE_CONTROL_COMMAND_ALPHA_BLEND                  4
+#define DE_CONTROL_COMMAND_RLE_STRIP                    5
+#define DE_CONTROL_COMMAND_SHORT_STROKE                 6
+#define DE_CONTROL_COMMAND_LINE_DRAW                    7
+#define DE_CONTROL_COMMAND_HOST_WRITE                   8
+#define DE_CONTROL_COMMAND_HOST_READ                    9
+#define DE_CONTROL_COMMAND_HOST_WRITE_BOTTOM_UP         10
+#define DE_CONTROL_COMMAND_ROTATE                       11
+#define DE_CONTROL_COMMAND_FONT                         12
+#define DE_CONTROL_COMMAND_TEXTURE_LOAD                 15
+#define DE_CONTROL_ROP_SELECT                           15:15
+#define DE_CONTROL_ROP_SELECT_ROP3                      0
+#define DE_CONTROL_ROP_SELECT_ROP2                      1
+#define DE_CONTROL_ROP2_SOURCE                          14:14
+#define DE_CONTROL_ROP2_SOURCE_BITMAP                   0
+#define DE_CONTROL_ROP2_SOURCE_PATTERN                  1
+#define DE_CONTROL_MONO_DATA                            13:12
+#define DE_CONTROL_MONO_DATA_NOT_PACKED                 0
+#define DE_CONTROL_MONO_DATA_8_PACKED                   1
+#define DE_CONTROL_MONO_DATA_16_PACKED                  2
+#define DE_CONTROL_MONO_DATA_32_PACKED                  3
+#define DE_CONTROL_REPEAT_ROTATE                        11:11
+#define DE_CONTROL_REPEAT_ROTATE_DISABLE                0
+#define DE_CONTROL_REPEAT_ROTATE_ENABLE                 1
+#define DE_CONTROL_TRANSPARENCY_MATCH                   10:10
+#define DE_CONTROL_TRANSPARENCY_MATCH_OPAQUE            0
+#define DE_CONTROL_TRANSPARENCY_MATCH_TRANSPARENT       1
+#define DE_CONTROL_TRANSPARENCY_SELECT                  9:9
+#define DE_CONTROL_TRANSPARENCY_SELECT_SOURCE           0
+#define DE_CONTROL_TRANSPARENCY_SELECT_DESTINATION      1
+#define DE_CONTROL_TRANSPARENCY                         8:8
+#define DE_CONTROL_TRANSPARENCY_DISABLE                 0
+#define DE_CONTROL_TRANSPARENCY_ENABLE                  1
+#define DE_CONTROL_ROP                                  7:0
+
+// Pseudo fields.
+
+#define DE_CONTROL_SHORT_STROKE_DIR                     27:24
+#define DE_CONTROL_SHORT_STROKE_DIR_225                 0
+#define DE_CONTROL_SHORT_STROKE_DIR_135                 1
+#define DE_CONTROL_SHORT_STROKE_DIR_315                 2
+#define DE_CONTROL_SHORT_STROKE_DIR_45                  3
+#define DE_CONTROL_SHORT_STROKE_DIR_270                 4
+#define DE_CONTROL_SHORT_STROKE_DIR_90                  5
+#define DE_CONTROL_SHORT_STROKE_DIR_180                 8
+#define DE_CONTROL_SHORT_STROKE_DIR_0                   10
+#define DE_CONTROL_ROTATION                             25:24
+#define DE_CONTROL_ROTATION_0                           0
+#define DE_CONTROL_ROTATION_270                         1
+#define DE_CONTROL_ROTATION_90                          2
+#define DE_CONTROL_ROTATION_180                         3
+
+#define DE_PITCH                                        0x000010
+#define DE_PITCH_DESTINATION                            28:16
+#define DE_PITCH_SOURCE                                 12:0
+
+#define DE_FOREGROUND                                   0x000014
+#define DE_FOREGROUND_COLOR                             31:0
+
+#define DE_BACKGROUND                                   0x000018
+#define DE_BACKGROUND_COLOR                             31:0
+
+#define DE_STRETCH_FORMAT                               0x00001C
+#define DE_STRETCH_FORMAT_PATTERN_XY                    30:30
+#define DE_STRETCH_FORMAT_PATTERN_XY_NORMAL             0
+#define DE_STRETCH_FORMAT_PATTERN_XY_OVERWRITE          1
+#define DE_STRETCH_FORMAT_PATTERN_Y                     29:27
+#define DE_STRETCH_FORMAT_PATTERN_X                     25:23
+#define DE_STRETCH_FORMAT_PIXEL_FORMAT                  21:20
+#define DE_STRETCH_FORMAT_PIXEL_FORMAT_8                0
+#define DE_STRETCH_FORMAT_PIXEL_FORMAT_16               1
+#define DE_STRETCH_FORMAT_PIXEL_FORMAT_32               2
+#define DE_STRETCH_FORMAT_PIXEL_FORMAT_24               3
+
+#define DE_STRETCH_FORMAT_ADDRESSING                    19:16
+#define DE_STRETCH_FORMAT_ADDRESSING_XY                 0
+#define DE_STRETCH_FORMAT_ADDRESSING_LINEAR             15
+#define DE_STRETCH_FORMAT_SOURCE_HEIGHT                 11:0
+
+#define DE_COLOR_COMPARE                                0x000020
+#define DE_COLOR_COMPARE_COLOR                          23:0
+
+#define DE_COLOR_COMPARE_MASK                           0x000024
+#define DE_COLOR_COMPARE_MASK_MASKS                     23:0
+
+#define DE_MASKS                                        0x000028
+#define DE_MASKS_BYTE_MASK                              31:16
+#define DE_MASKS_BIT_MASK                               15:0
+
+#define DE_CLIP_TL                                      0x00002C
+#define DE_CLIP_TL_TOP                                  31:16
+#define DE_CLIP_TL_STATUS                               13:13
+#define DE_CLIP_TL_STATUS_DISABLE                       0
+#define DE_CLIP_TL_STATUS_ENABLE                        1
+#define DE_CLIP_TL_INHIBIT                              12:12
+#define DE_CLIP_TL_INHIBIT_OUTSIDE                      0
+#define DE_CLIP_TL_INHIBIT_INSIDE                       1
+#define DE_CLIP_TL_LEFT                                 11:0
+
+#define DE_CLIP_BR                                      0x000030
+#define DE_CLIP_BR_BOTTOM                               31:16
+#define DE_CLIP_BR_RIGHT                                12:0
+
+#define DE_MONO_PATTERN_LOW                             0x000034
+#define DE_MONO_PATTERN_LOW_PATTERN                     31:0
+
+#define DE_MONO_PATTERN_HIGH                            0x000038
+#define DE_MONO_PATTERN_HIGH_PATTERN                    31:0
+
+#define DE_WINDOW_WIDTH                                 0x00003C
+#define DE_WINDOW_WIDTH_DESTINATION                     28:16
+#define DE_WINDOW_WIDTH_SOURCE                          12:0
+
+#define DE_WINDOW_SOURCE_BASE                           0x000040
+#define DE_WINDOW_SOURCE_BASE_EXT                       27:27
+#define DE_WINDOW_SOURCE_BASE_EXT_LOCAL                 0
+#define DE_WINDOW_SOURCE_BASE_EXT_EXTERNAL              1
+#define DE_WINDOW_SOURCE_BASE_CS                        26:26
+#define DE_WINDOW_SOURCE_BASE_CS_0                      0
+#define DE_WINDOW_SOURCE_BASE_CS_1                      1
+#define DE_WINDOW_SOURCE_BASE_ADDRESS                   25:0
+
+#define DE_WINDOW_DESTINATION_BASE                      0x000044
+#define DE_WINDOW_DESTINATION_BASE_EXT                  27:27
+#define DE_WINDOW_DESTINATION_BASE_EXT_LOCAL            0
+#define DE_WINDOW_DESTINATION_BASE_EXT_EXTERNAL         1
+#define DE_WINDOW_DESTINATION_BASE_CS                   26:26
+#define DE_WINDOW_DESTINATION_BASE_CS_0                 0
+#define DE_WINDOW_DESTINATION_BASE_CS_1                 1
+#define DE_WINDOW_DESTINATION_BASE_ADDRESS              25:0
+
+#define DE_ALPHA                                        0x000048
+#define DE_ALPHA_VALUE                                  7:0
+
+#define DE_WRAP                                         0x00004C
+#define DE_WRAP_X                                       31:16
+#define DE_WRAP_Y                                       15:0
+
+#define DE_STATUS                                       0x000050
+#define DE_STATUS_CSC                                   1:1
+#define DE_STATUS_CSC_CLEAR                             0
+#define DE_STATUS_CSC_NOT_ACTIVE                        0
+#define DE_STATUS_CSC_ACTIVE                            1
+#define DE_STATUS_2D                                    0:0
+#define DE_STATUS_2D_CLEAR                              0
+#define DE_STATUS_2D_NOT_ACTIVE                         0
+#define DE_STATUS_2D_ACTIVE                             1
+
+
+
+/* blt direction */
+#define TOP_TO_BOTTOM 0
+#define LEFT_TO_RIGHT 0
+#define BOTTOM_TO_TOP 1
+#define RIGHT_TO_LEFT 1
+
+void hw_set2dformat(struct lynx_accel * accel,int fmt);
+
+void hw_de_init(struct lynx_accel * accel);
+
+int hw_fillrect(struct lynx_accel * accel,
+				u32 base,u32 pitch,u32 Bpp,
+				u32 x,u32 y,u32 width,u32 height,
+				u32 color,u32 rop);
+
+int hw_copyarea(
+struct lynx_accel * accel,
+unsigned int sBase,  /* Address of source: offset in frame buffer */
+unsigned int sPitch, /* Pitch value of source surface in BYTE */
+unsigned int sx,
+unsigned int sy,     /* Starting coordinate of source surface */
+unsigned int dBase,  /* Address of destination: offset in frame buffer */
+unsigned int dPitch, /* Pitch value of destination surface in BYTE */
+unsigned int bpp,    /* Color depth of destination surface */
+unsigned int dx,
+unsigned int dy,     /* Starting coordinate of destination surface */
+unsigned int width,
+unsigned int height, /* width and height of rectangle in pixel value */
+unsigned int rop2);
+
+int hw_imageblit(struct lynx_accel *accel,
+		 const char *pSrcbuf, /* pointer to start of source buffer in system memory */
+		 u32 srcDelta,          /* Pitch value (in bytes) of the source buffer, +ive means top down and -ive mean button up */
+		 u32 startBit, /* Mono data can start at any bit in a byte, this value should be 0 to 7 */
+		 u32 dBase,    /* Address of destination: offset in frame buffer */
+		 u32 dPitch,   /* Pitch value of destination surface in BYTE */
+		 u32 bytePerPixel,      /* Color depth of destination surface */
+		 u32 dx,
+		 u32 dy,       /* Starting coordinate of destination surface */
+		 u32 width,
+		 u32 height,   /* width and height of rectange in pixel value */
+		 u32 fColor,   /* Foreground color (corresponding to a 1 in the monochrome data */
+		 u32 bColor,   /* Background color (corresponding to a 0 in the monochrome data */
+		 u32 rop2);
+#endif
diff --git a/drivers/staging/sm750fb/sm750_cursor.c b/drivers/staging/sm750fb/sm750_cursor.c
new file mode 100644
index 0000000..68d5cbc
--- /dev/null
+++ b/drivers/staging/sm750fb/sm750_cursor.c
@@ -0,0 +1,251 @@
+#include<linux/module.h>
+#include<linux/kernel.h>
+#include<linux/errno.h>
+#include<linux/string.h>
+#include<linux/mm.h>
+#include<linux/slab.h>
+#include<linux/delay.h>
+#include<linux/fb.h>
+#include<linux/ioport.h>
+#include<linux/init.h>
+#include<linux/pci.h>
+#include<linux/vmalloc.h>
+#include<linux/pagemap.h>
+#include <linux/console.h>
+#include<linux/platform_device.h>
+#include<linux/screen_info.h>
+
+#include "sm750.h"
+#include "sm750_help.h"
+#include "sm750_cursor.h"
+
+
+#define PEEK32(addr) \
+readl(cursor->mmio + (addr))
+
+#define POKE32(addr,data) \
+writel((data),cursor->mmio + (addr))
+
+/* cursor control for voyager and 718/750*/
+#define HWC_ADDRESS                         0x0
+#define HWC_ADDRESS_ENABLE                  31:31
+#define HWC_ADDRESS_ENABLE_DISABLE          0
+#define HWC_ADDRESS_ENABLE_ENABLE           1
+#define HWC_ADDRESS_EXT                     27:27
+#define HWC_ADDRESS_EXT_LOCAL               0
+#define HWC_ADDRESS_EXT_EXTERNAL            1
+#define HWC_ADDRESS_CS                      26:26
+#define HWC_ADDRESS_CS_0                    0
+#define HWC_ADDRESS_CS_1                    1
+#define HWC_ADDRESS_ADDRESS                 25:0
+
+#define HWC_LOCATION                        0x4
+#define HWC_LOCATION_TOP                    27:27
+#define HWC_LOCATION_TOP_INSIDE             0
+#define HWC_LOCATION_TOP_OUTSIDE            1
+#define HWC_LOCATION_Y                      26:16
+#define HWC_LOCATION_LEFT                   11:11
+#define HWC_LOCATION_LEFT_INSIDE            0
+#define HWC_LOCATION_LEFT_OUTSIDE           1
+#define HWC_LOCATION_X                      10:0
+
+#define HWC_COLOR_12                        0x8
+#define HWC_COLOR_12_2_RGB565               31:16
+#define HWC_COLOR_12_1_RGB565               15:0
+
+#define HWC_COLOR_3                         0xC
+#define HWC_COLOR_3_RGB565                  15:0
+
+
+/* hw_cursor_xxx works for voyager,718 and 750 */
+void hw_cursor_enable(struct lynx_cursor * cursor)
+{
+	u32 reg;
+	reg = FIELD_VALUE(0,HWC_ADDRESS,ADDRESS,cursor->offset)|
+			FIELD_SET(0,HWC_ADDRESS,EXT,LOCAL)|
+			FIELD_SET(0,HWC_ADDRESS,ENABLE,ENABLE);
+	POKE32(HWC_ADDRESS,reg);
+}
+void hw_cursor_disable(struct lynx_cursor * cursor)
+{
+	POKE32(HWC_ADDRESS,0);
+}
+
+void hw_cursor_setSize(struct lynx_cursor * cursor,
+						int w,int h)
+{
+	cursor->w = w;
+	cursor->h = h;
+}
+void hw_cursor_setPos(struct lynx_cursor * cursor,
+						int x,int y)
+{
+	u32 reg;
+	reg = FIELD_VALUE(0,HWC_LOCATION,Y,y)|
+			FIELD_VALUE(0,HWC_LOCATION,X,x);
+	POKE32(HWC_LOCATION,reg);
+}
+void hw_cursor_setColor(struct lynx_cursor * cursor,
+						u32 fg,u32 bg)
+{
+	POKE32(HWC_COLOR_12,(fg<<16)|(bg&0xffff));
+	POKE32(HWC_COLOR_3,0xffe0);
+}
+
+void hw_cursor_setData(struct lynx_cursor * cursor,
+			u16 rop,const u8* pcol,const u8* pmsk)
+{
+	int i,j,count,pitch,offset;
+	u8 color,mask,opr;
+	u16 data;
+	void __iomem *pbuffer, *pstart;
+
+	/*  in byte*/
+	pitch = cursor->w >> 3;
+
+	/* in byte	*/
+	count = pitch * cursor->h;
+
+	/* in byte */
+	offset = cursor->maxW * 2 / 8;
+
+	data = 0;
+	pstart = cursor->vstart;
+	pbuffer = pstart;
+
+/*
+	if(odd &1){
+		hw_cursor_setData2(cursor,rop,pcol,pmsk);
+	}
+	odd++;
+	if(odd > 0xfffffff0)
+		odd=0;
+*/
+
+	for(i=0;i<count;i++)
+	{
+		color = *pcol++;
+		mask = *pmsk++;
+		data = 0;
+
+		/* either method below works well,
+		 * but method 2 shows no lag
+		 * and method 1 seems a bit wrong*/
+#if 0
+		if(rop == ROP_XOR)
+			opr = mask ^ color;
+		else
+			opr = mask & color;
+
+		for(j=0;j<8;j++)
+		{
+
+			if(opr & (0x80 >> j))
+			{	//use fg color,id = 2
+				data |= 2 << (j*2);
+			}else{
+				//use bg color,id = 1
+				data |= 1 << (j*2);
+			}
+		}
+#else
+		for(j=0;j<8;j++){
+			if(mask & (0x80>>j)){
+				if(rop == ROP_XOR)
+					opr = mask ^ color;
+				else
+					opr = mask & color;
+
+				/* 2 stands for forecolor and 1 for backcolor */
+				data |= ((opr & (0x80>>j))?2:1)<<(j*2);
+			}
+		}
+#endif
+		iowrite16(data, pbuffer);
+
+		/* assume pitch is 1,2,4,8,...*/
+#if 0
+		if(!((i+1)&(pitch-1)))   /* below line equal to is line */
+#else
+		if((i+1) % pitch == 0)
+#endif
+		{
+			/* need a return */
+			pstart += offset;
+			pbuffer = pstart;
+		}else{
+			pbuffer += sizeof(u16);
+		}
+
+	}
+
+
+}
+
+
+void hw_cursor_setData2(struct lynx_cursor * cursor,
+			u16 rop,const u8* pcol,const u8* pmsk)
+{
+	int i,j,count,pitch,offset;
+	u8 color, mask;
+	u16 data;
+	void __iomem *pbuffer, *pstart;
+
+	/*  in byte*/
+	pitch = cursor->w >> 3;
+
+	/* in byte	*/
+	count = pitch * cursor->h;
+
+	/* in byte */
+	offset = cursor->maxW * 2 / 8;
+
+	data = 0;
+	pstart = cursor->vstart;
+	pbuffer = pstart;
+
+	for(i=0;i<count;i++)
+	{
+		color = *pcol++;
+		mask = *pmsk++;
+		data = 0;
+
+		/* either method below works well, but method 2 shows no lag */
+#if 0
+		if(rop == ROP_XOR)
+			opr = mask ^ color;
+		else
+			opr = mask & color;
+
+		for(j=0;j<8;j++)
+		{
+
+			if(opr & (0x80 >> j))
+			{	//use fg color,id = 2
+				data |= 2 << (j*2);
+			}else{
+				//use bg color,id = 1
+				data |= 1 << (j*2);
+			}
+		}
+#else
+		for(j=0;j<8;j++){
+			if(mask & (1<<j))
+				data |= ((color & (1<<j))?1:2)<<(j*2);
+		}
+#endif
+		iowrite16(data, pbuffer);
+
+		/* assume pitch is 1,2,4,8,...*/
+		if(!(i&(pitch-1)))
+		//if((i+1) % pitch == 0)
+		{
+			/* need a return */
+			pstart += offset;
+			pbuffer = pstart;
+		}else{
+			pbuffer += sizeof(u16);
+		}
+
+	}
+}
diff --git a/drivers/staging/sm750fb/sm750_cursor.h b/drivers/staging/sm750fb/sm750_cursor.h
new file mode 100644
index 0000000..8cede07
--- /dev/null
+++ b/drivers/staging/sm750fb/sm750_cursor.h
@@ -0,0 +1,17 @@
+#ifndef LYNX_CURSOR_H__
+#define LYNX_CURSOR_H__
+
+/* hw_cursor_xxx works for voyager,718 and 750 */
+void hw_cursor_enable(struct lynx_cursor * cursor);
+void hw_cursor_disable(struct lynx_cursor * cursor);
+void hw_cursor_setSize(struct lynx_cursor * cursor,
+						int w,int h);
+void hw_cursor_setPos(struct lynx_cursor * cursor,
+						int x,int y);
+void hw_cursor_setColor(struct lynx_cursor * cursor,
+						u32 fg,u32 bg);
+void hw_cursor_setData(struct lynx_cursor * cursor,
+			u16 rop,const u8* data,const u8* mask);
+void hw_cursor_setData2(struct lynx_cursor * cursor,
+			u16 rop,const u8* data,const u8* mask);
+#endif
diff --git a/drivers/staging/sm750fb/sm750_help.h b/drivers/staging/sm750fb/sm750_help.h
new file mode 100644
index 0000000..e0128d2
--- /dev/null
+++ b/drivers/staging/sm750fb/sm750_help.h
@@ -0,0 +1,111 @@
+#ifndef LYNX_HELP_H__
+#define LYNX_HELP_H__
+/*****************************************************************************\
+ *                                FIELD MACROS                               *
+\*****************************************************************************/
+
+#define _LSB(f)             (0 ? f)
+#define _MSB(f)             (1 ? f)
+#define _COUNT(f)           (_MSB(f) - _LSB(f) + 1)
+
+#define RAW_MASK(f)         (0xFFFFFFFF >> (32 - _COUNT(f)))
+#define GET_MASK(f)         (RAW_MASK(f) << _LSB(f))
+#define GET_FIELD(d,f)      (((d) >> _LSB(f)) & RAW_MASK(f))
+#define TEST_FIELD(d,f,v)   (GET_FIELD(d,f) == f ## _ ## v)
+#define SET_FIELD(d,f,v)    (((d) & ~GET_MASK(f)) | \
+                            (((f ## _ ## v) & RAW_MASK(f)) << _LSB(f)))
+#define SET_FIELDV(d,f,v)   (((d) & ~GET_MASK(f)) | \
+                            (((v) & RAW_MASK(f)) << _LSB(f)))
+
+
+////////////////////////////////////////////////////////////////////////////////
+//                                                                            //
+// Internal macros                                                            //
+//                                                                            //
+////////////////////////////////////////////////////////////////////////////////
+
+#define _F_START(f)             (0 ? f)
+#define _F_END(f)               (1 ? f)
+#define _F_SIZE(f)              (1 + _F_END(f) - _F_START(f))
+#define _F_MASK(f)              (((1 << _F_SIZE(f)) - 1) << _F_START(f))
+#define _F_NORMALIZE(v, f)      (((v) & _F_MASK(f)) >> _F_START(f))
+#define _F_DENORMALIZE(v, f)    (((v) << _F_START(f)) & _F_MASK(f))
+
+
+////////////////////////////////////////////////////////////////////////////////
+//                                                                            //
+// Global macros                                                              //
+//                                                                            //
+////////////////////////////////////////////////////////////////////////////////
+
+#define FIELD_GET(x, reg, field) \
+( \
+    _F_NORMALIZE((x), reg ## _ ## field) \
+)
+
+#define FIELD_SET(x, reg, field, value) \
+( \
+    (x & ~_F_MASK(reg ## _ ## field)) \
+    | _F_DENORMALIZE(reg ## _ ## field ## _ ## value, reg ## _ ## field) \
+)
+
+#define FIELD_VALUE(x, reg, field, value) \
+( \
+    (x & ~_F_MASK(reg ## _ ## field)) \
+    | _F_DENORMALIZE(value, reg ## _ ## field) \
+)
+
+#define FIELD_CLEAR(reg, field) \
+( \
+    ~ _F_MASK(reg ## _ ## field) \
+)
+
+
+////////////////////////////////////////////////////////////////////////////////
+//                                                                            //
+// Field Macros                                                               //
+//                                                                            //
+////////////////////////////////////////////////////////////////////////////////
+
+#define FIELD_START(field)              (0 ? field)
+#define FIELD_END(field)                (1 ? field)
+#define FIELD_SIZE(field)               (1 + FIELD_END(field) - FIELD_START(field))
+#define FIELD_MASK(field)               (((1 << (FIELD_SIZE(field)-1)) | ((1 << (FIELD_SIZE(field)-1)) - 1)) << FIELD_START(field))
+#define FIELD_NORMALIZE(reg, field)     (((reg) & FIELD_MASK(field)) >> FIELD_START(field))
+#define FIELD_DENORMALIZE(field, value) (((value) << FIELD_START(field)) & FIELD_MASK(field))
+
+#define FIELD_INIT(reg, field, value)   FIELD_DENORMALIZE(reg ## _ ## field, \
+                                                          reg ## _ ## field ## _ ## value)
+#define FIELD_INIT_VAL(reg, field, value) \
+                                        (FIELD_DENORMALIZE(reg ## _ ## field, value))
+#define FIELD_VAL_SET(x, r, f, v)       x = x & ~FIELD_MASK(r ## _ ## f) \
+                                              | FIELD_DENORMALIZE(r ## _ ## f, r ## _ ## f ## _ ## v)
+
+#define RGB(r, g, b) \
+( \
+    (unsigned long) (((r) << 16) | ((g) << 8) | (b)) \
+)
+
+#define RGB16(r, g, b) \
+( \
+    (unsigned short) ((((r) & 0xF8) << 8) | (((g) & 0xFC) << 3) | (((b) & 0xF8) >> 3)) \
+)
+
+static inline unsigned int absDiff(unsigned int a,unsigned int b)
+{
+	if(a<b)
+		return b-a;
+	else
+		return a-b;
+}
+
+/* n / d + 1 / 2 = (2n + d) / 2d */
+#define roundedDiv(num,denom)	((2 * (num) + (denom)) / (2 * (denom)))
+#define MB(x) ((x)<<20)
+#define KB(x) ((x)<<10)
+#define MHz(x) ((x) * 1000000)
+
+
+
+
+#endif
diff --git a/drivers/staging/sm750fb/sm750_hw.c b/drivers/staging/sm750fb/sm750_hw.c
new file mode 100644
index 0000000..9f0d06d
--- /dev/null
+++ b/drivers/staging/sm750fb/sm750_hw.c
@@ -0,0 +1,642 @@
+#include <linux/version.h>
+#include<linux/module.h>
+#include<linux/kernel.h>
+#include<linux/errno.h>
+#include<linux/string.h>
+#include<linux/mm.h>
+#include<linux/slab.h>
+#include<linux/delay.h>
+#include<linux/fb.h>
+#include<linux/ioport.h>
+#include<linux/init.h>
+#include<linux/pci.h>
+#include<linux/vmalloc.h>
+#include<linux/pagemap.h>
+#include <linux/console.h>
+#ifdef CONFIG_MTRR
+#include <asm/mtrr.h>
+#endif
+#include<linux/platform_device.h>
+#include<linux/screen_info.h>
+
+#include "sm750.h"
+#include "sm750_hw.h"
+#include "ddk750.h"
+#include "sm750_accel.h"
+
+int hw_sm750_map(struct lynx_share* share, struct pci_dev* pdev)
+{
+	int ret;
+	struct sm750_share * spec_share;
+	
+
+	spec_share = container_of(share, struct sm750_share,share);
+	ret = 0;
+
+	share->vidreg_start  = pci_resource_start(pdev, 1);
+	share->vidreg_size = MB(2);
+
+	pr_info("mmio phyAddr = %lx\n", share->vidreg_start);
+
+	/* reserve the vidreg space of smi adaptor
+	 * if you do this, u need to add release region code
+	 * in lynxfb_remove, or memory will not be mapped again
+	 * successfully
+	 * */
+
+	if((ret = pci_request_region(pdev, 1, "sm750fb")))
+	{
+		pr_err("Can not request PCI regions.\n");
+		goto exit;
+	}
+
+	/* now map mmio and vidmem*/
+	share->pvReg = ioremap_nocache(share->vidreg_start, share->vidreg_size);
+	if(!share->pvReg){
+		pr_err("mmio failed\n");
+		ret = -EFAULT;
+		goto exit;
+	}else{
+		pr_info("mmio virtual addr = %p\n", share->pvReg);
+	}
+
+	
+	share->accel.dprBase = share->pvReg + DE_BASE_ADDR_TYPE1;
+	share->accel.dpPortBase = share->pvReg + DE_PORT_ADDR_TYPE1;
+
+	ddk750_set_mmio(share->pvReg,share->devid, share->revid);
+
+	share->vidmem_start = pci_resource_start(pdev, 0);
+	/* don't use pdev_resource[x].end - resource[x].start to
+	 * calculate the resource size,its only the maximum available
+	 * size but not the actual size,use
+	 * @hw_sm750_getVMSize function can be safe.
+	 * */
+	share->vidmem_size = hw_sm750_getVMSize(share);
+	pr_info("video memory phyAddr = %lx, size = %u bytes\n",
+	share->vidmem_start, share->vidmem_size);
+
+	/* reserve the vidmem space of smi adaptor */
+#if 0
+	if((ret = pci_request_region(pdev,0,_moduleName_)))
+	{
+		pr_err("Can not request PCI regions.\n");
+		goto exit;
+	}
+#endif
+
+	share->pvMem = ioremap(share->vidmem_start,
+							share->vidmem_size);
+
+	if(!share->pvMem){
+		pr_err("Map video memory failed\n");
+		ret = -EFAULT;
+		goto exit;
+	}else{
+		pr_info("video memory vaddr = %p\n", share->pvMem);
+	}
+exit:
+	return ret;
+}
+
+
+
+int hw_sm750_inithw(struct lynx_share* share, struct pci_dev * pdev)
+{
+	struct sm750_share * spec_share;
+	struct init_status * parm;
+	
+	spec_share = container_of(share, struct sm750_share,share);
+	parm = &spec_share->state.initParm;
+	if(parm->chip_clk == 0)
+		parm->chip_clk = (getChipType() == SM750LE)?
+						DEFAULT_SM750LE_CHIP_CLOCK :
+						DEFAULT_SM750_CHIP_CLOCK;
+
+	if(parm->mem_clk == 0)
+		parm->mem_clk = parm->chip_clk;
+	if(parm->master_clk == 0)
+		parm->master_clk = parm->chip_clk/3;
+
+	ddk750_initHw((initchip_param_t *)&spec_share->state.initParm);
+	/* for sm718,open pci burst */
+	if(share->devid == 0x718){
+		POKE32(SYSTEM_CTRL,
+				FIELD_SET(PEEK32(SYSTEM_CTRL), SYSTEM_CTRL, PCI_BURST, ON));
+	}
+
+	/* sm750 use sii164, it can be setup with default value
+	 * by on power, so initDVIDisp can be skipped */
+#if 0
+	ddk750_initDVIDisp();
+#endif
+
+	if(getChipType() != SM750LE)
+	{
+		/* does user need CRT ?*/
+		if(spec_share->state.nocrt){
+			POKE32(MISC_CTRL,
+					FIELD_SET(PEEK32(MISC_CTRL),
+					MISC_CTRL,
+					DAC_POWER, OFF));
+			/* shut off dpms */
+			POKE32(SYSTEM_CTRL,
+					FIELD_SET(PEEK32(SYSTEM_CTRL),
+					SYSTEM_CTRL,
+					DPMS, VNHN));
+		}else{
+			POKE32(MISC_CTRL,
+					FIELD_SET(PEEK32(MISC_CTRL),
+					MISC_CTRL,
+					DAC_POWER, ON));
+			/* turn on dpms */
+			POKE32(SYSTEM_CTRL,
+					FIELD_SET(PEEK32(SYSTEM_CTRL),
+					SYSTEM_CTRL,
+					DPMS, VPHP));
+		}
+
+		switch (spec_share->state.pnltype){
+			case sm750_doubleTFT:
+			case sm750_24TFT:
+			case sm750_dualTFT:
+			POKE32(PANEL_DISPLAY_CTRL,
+				FIELD_VALUE(PEEK32(PANEL_DISPLAY_CTRL),
+							PANEL_DISPLAY_CTRL,
+							TFT_DISP,
+							spec_share->state.pnltype));
+			break;
+		}
+	}else{
+		/* for 750LE ,no DVI chip initilization makes Monitor no signal */
+		/* Set up GPIO for software I2C to program DVI chip in the
+		   Xilinx SP605 board, in order to have video signal.
+		 */
+        swI2CInit(0,1);
+
+
+        /* Customer may NOT use CH7301 DVI chip, which has to be
+           initialized differently.
+         */
+        if (swI2CReadReg(0xec, 0x4a) == 0x95)
+        {
+            /* The following register values for CH7301 are from
+               Chrontel app note and our experiment.
+             */
+			pr_info("yes,CH7301 DVI chip found\n");
+            swI2CWriteReg(0xec, 0x1d, 0x16);
+            swI2CWriteReg(0xec, 0x21, 0x9);
+            swI2CWriteReg(0xec, 0x49, 0xC0);
+			pr_info("okay,CH7301 DVI chip setup done\n");
+        }
+	}
+
+	/* init 2d engine */
+	if(!share->accel_off){
+		hw_sm750_initAccel(share);
+//		share->accel.de_wait = hw_sm750_deWait;
+	}
+
+	return 0;
+}
+
+
+resource_size_t hw_sm750_getVMSize(struct lynx_share * share)
+{
+	resource_size_t ret;
+	
+	ret = ddk750_getVMSize();
+	return ret;
+}
+
+
+
+int hw_sm750_output_checkMode(struct lynxfb_output* output, struct fb_var_screeninfo* var)
+{
+	
+	return 0;
+}
+
+
+int hw_sm750_output_setMode(struct lynxfb_output* output,
+									struct fb_var_screeninfo* var, struct fb_fix_screeninfo* fix)
+{
+	int ret;
+	disp_output_t dispSet;
+	int channel;
+	
+	ret = 0;
+	dispSet = 0;
+	channel = *output->channel;
+
+
+	if(getChipType() != SM750LE){
+		if(channel == sm750_primary){
+			pr_info("primary channel\n");
+			if(output->paths & sm750_panel)
+				dispSet |= do_LCD1_PRI;
+			if(output->paths & sm750_crt)
+				dispSet |= do_CRT_PRI;
+
+		}else{
+			pr_info("secondary channel\n");
+			if(output->paths & sm750_panel)
+				dispSet |= do_LCD1_SEC;
+			if(output->paths & sm750_crt)
+				dispSet |= do_CRT_SEC;
+
+		}
+		ddk750_setLogicalDispOut(dispSet);
+	}else{
+		/* just open DISPLAY_CONTROL_750LE register bit 3:0*/
+		u32 reg;
+		reg = PEEK32(DISPLAY_CONTROL_750LE);
+		reg |= 0xf;
+		POKE32(DISPLAY_CONTROL_750LE, reg);
+	}
+
+	pr_info("ddk setlogicdispout done \n");
+	return ret;
+}
+
+void hw_sm750_output_clear(struct lynxfb_output* output)
+{
+	
+	return;
+}
+
+int hw_sm750_crtc_checkMode(struct lynxfb_crtc* crtc, struct fb_var_screeninfo* var)
+{
+	struct lynx_share * share;
+	
+
+	share = container_of(crtc, struct lynxfb_par,crtc)->share;
+
+	switch (var->bits_per_pixel){
+		case 8:
+		case 16:
+			break;
+		case 32:
+			if (share->revid == SM750LE_REVISION_ID) {
+				pr_debug("750le do not support 32bpp\n");
+				return -EINVAL;
+			}
+			break;
+		default:
+			return -EINVAL;
+
+	}
+
+	return 0;
+}
+
+
+/*
+	set the controller's mode for @crtc charged with @var and @fix parameters
+*/
+int hw_sm750_crtc_setMode(struct lynxfb_crtc* crtc,
+								struct fb_var_screeninfo* var,
+								struct fb_fix_screeninfo* fix)
+{
+	int ret,fmt;
+	u32 reg;
+	mode_parameter_t modparm;
+	clock_type_t clock;
+	struct lynx_share * share;
+	struct lynxfb_par * par;
+
+	
+	ret = 0;
+	par = container_of(crtc, struct lynxfb_par, crtc);
+	share = par->share;
+#if 1
+	if(!share->accel_off){
+		/* set 2d engine pixel format according to mode bpp */
+		switch(var->bits_per_pixel){
+			case 8:
+				fmt = 0;
+				break;
+			case 16:
+				fmt = 1;
+				break;
+			case 32:
+			default:
+				fmt = 2;
+				break;
+		}
+		hw_set2dformat(&share->accel, fmt);
+	}
+#endif
+
+	/* set timing */
+//	modparm.pixel_clock = PS_TO_HZ(var->pixclock);
+	modparm.pixel_clock = ps_to_hz(var->pixclock);
+	modparm.vertical_sync_polarity = (var->sync & FB_SYNC_HOR_HIGH_ACT) ? POS:NEG;
+	modparm.horizontal_sync_polarity = (var->sync & FB_SYNC_VERT_HIGH_ACT) ? POS:NEG;
+	modparm.clock_phase_polarity = (var->sync& FB_SYNC_COMP_HIGH_ACT) ? POS:NEG;
+	modparm.horizontal_display_end = var->xres;
+	modparm.horizontal_sync_width = var->hsync_len;
+	modparm.horizontal_sync_start = var->xres + var->right_margin;
+	modparm.horizontal_total = var->xres + var->left_margin + var->right_margin + var->hsync_len;
+	modparm.vertical_display_end = var->yres;
+	modparm.vertical_sync_height = var->vsync_len;
+	modparm.vertical_sync_start = var->yres + var->lower_margin;
+	modparm.vertical_total = var->yres + var->upper_margin + var->lower_margin + var->vsync_len;
+
+	/* choose pll */
+	if(crtc->channel != sm750_secondary)
+		clock = PRIMARY_PLL;
+	else
+		clock = SECONDARY_PLL;
+
+	pr_debug("Request pixel clock = %lu\n", modparm.pixel_clock);
+	ret = ddk750_setModeTiming(&modparm, clock);
+	if(ret){
+		pr_err("Set mode timing failed\n");
+		goto exit;
+	}
+
+	if(crtc->channel != sm750_secondary){
+		/* set pitch, offset ,width,start address ,etc... */
+		POKE32(PANEL_FB_ADDRESS,
+			FIELD_SET(0, PANEL_FB_ADDRESS, STATUS, CURRENT)|
+			FIELD_SET(0, PANEL_FB_ADDRESS, EXT, LOCAL)|
+			FIELD_VALUE(0, PANEL_FB_ADDRESS, ADDRESS, crtc->oScreen));
+
+		reg = var->xres * (var->bits_per_pixel >> 3);
+		/* crtc->channel is not equal to par->index on numeric,be aware of that */
+		reg = PADDING(crtc->line_pad,reg);
+
+		POKE32(PANEL_FB_WIDTH,
+			FIELD_VALUE(0, PANEL_FB_WIDTH, WIDTH, reg)|
+			FIELD_VALUE(0, PANEL_FB_WIDTH, OFFSET, fix->line_length));
+
+		POKE32(PANEL_WINDOW_WIDTH,
+			FIELD_VALUE(0, PANEL_WINDOW_WIDTH, WIDTH, var->xres -1)|
+			FIELD_VALUE(0, PANEL_WINDOW_WIDTH, X, var->xoffset));
+
+		POKE32(PANEL_WINDOW_HEIGHT,
+			FIELD_VALUE(0, PANEL_WINDOW_HEIGHT, HEIGHT, var->yres_virtual - 1)|
+			FIELD_VALUE(0, PANEL_WINDOW_HEIGHT, Y, var->yoffset));
+
+		POKE32(PANEL_PLANE_TL, 0);
+
+		POKE32(PANEL_PLANE_BR,
+			FIELD_VALUE(0, PANEL_PLANE_BR, BOTTOM, var->yres - 1)|
+			FIELD_VALUE(0, PANEL_PLANE_BR,RIGHT, var->xres - 1));
+
+		/* set pixel format */
+		reg = PEEK32(PANEL_DISPLAY_CTRL);
+		POKE32(PANEL_DISPLAY_CTRL,
+			FIELD_VALUE(reg,
+			PANEL_DISPLAY_CTRL, FORMAT,
+			(var->bits_per_pixel >> 4)
+			));
+	}else{
+		/* not implemented now */
+		POKE32(CRT_FB_ADDRESS, crtc->oScreen);
+		reg = var->xres * (var->bits_per_pixel >> 3);
+		/* crtc->channel is not equal to par->index on numeric,be aware of that */
+		reg = PADDING(crtc->line_pad, reg);
+
+		POKE32(CRT_FB_WIDTH,
+			FIELD_VALUE(0, CRT_FB_WIDTH, WIDTH, reg)|
+			FIELD_VALUE(0, CRT_FB_WIDTH, OFFSET, fix->line_length));
+
+		/* SET PIXEL FORMAT */
+		reg = PEEK32(CRT_DISPLAY_CTRL);
+		reg = FIELD_VALUE(reg, CRT_DISPLAY_CTRL, FORMAT, var->bits_per_pixel >> 4);
+		POKE32(CRT_DISPLAY_CTRL, reg);
+
+	}
+
+
+exit:
+	return ret;
+}
+
+void hw_sm750_crtc_clear(struct lynxfb_crtc* crtc)
+{
+	
+	return;
+}
+
+int hw_sm750_setColReg(struct lynxfb_crtc* crtc, ushort index,
+								ushort red, ushort green, ushort blue)
+{
+	static unsigned int add[]={PANEL_PALETTE_RAM,CRT_PALETTE_RAM};
+	POKE32(add[crtc->channel] + index*4, (red<<16)|(green<<8)|blue);
+	return 0;
+}
+
+int hw_sm750le_setBLANK(struct lynxfb_output * output, int blank){
+	int dpms,crtdb;
+	
+	switch(blank)
+	{
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,10)
+		case FB_BLANK_UNBLANK:
+#else
+		case VESA_NO_BLANKING:
+#endif
+			dpms = CRT_DISPLAY_CTRL_DPMS_0;
+			crtdb = CRT_DISPLAY_CTRL_BLANK_OFF;
+			break;
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,10)
+		case FB_BLANK_NORMAL:
+			dpms = CRT_DISPLAY_CTRL_DPMS_0;
+			crtdb = CRT_DISPLAY_CTRL_BLANK_ON;
+			break;
+#endif
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,10)
+		case FB_BLANK_VSYNC_SUSPEND:
+#else
+		case VESA_VSYNC_SUSPEND:
+#endif
+			dpms = CRT_DISPLAY_CTRL_DPMS_2;
+			crtdb = CRT_DISPLAY_CTRL_BLANK_ON;
+			break;
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,10)
+		case FB_BLANK_HSYNC_SUSPEND:
+#else
+		case VESA_HSYNC_SUSPEND:
+#endif
+			dpms = CRT_DISPLAY_CTRL_DPMS_1;
+			crtdb = CRT_DISPLAY_CTRL_BLANK_ON;
+			break;
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,10)
+		case FB_BLANK_POWERDOWN:
+#else
+		case VESA_POWERDOWN:
+#endif
+			dpms = CRT_DISPLAY_CTRL_DPMS_3;
+			crtdb = CRT_DISPLAY_CTRL_BLANK_ON;
+			break;
+		default:
+			return -EINVAL;
+	}
+
+	if(output->paths & sm750_crt){
+		POKE32(CRT_DISPLAY_CTRL, FIELD_VALUE(PEEK32(CRT_DISPLAY_CTRL), CRT_DISPLAY_CTRL, DPMS, dpms));
+		POKE32(CRT_DISPLAY_CTRL, FIELD_VALUE(PEEK32(CRT_DISPLAY_CTRL), CRT_DISPLAY_CTRL, BLANK, crtdb));
+	}
+	return 0;
+}
+
+int hw_sm750_setBLANK(struct lynxfb_output* output,int blank)
+{
+	unsigned int dpms, pps, crtdb;
+	
+	dpms = pps = crtdb = 0;
+
+	switch (blank)
+	{
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,10)
+		case FB_BLANK_UNBLANK:
+#else
+		case VESA_NO_BLANKING:
+#endif
+			pr_info("flag = FB_BLANK_UNBLANK \n");
+			dpms = SYSTEM_CTRL_DPMS_VPHP;
+			pps = PANEL_DISPLAY_CTRL_DATA_ENABLE;
+			crtdb = CRT_DISPLAY_CTRL_BLANK_OFF;
+			break;
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,10)
+		case FB_BLANK_NORMAL:
+			pr_info("flag = FB_BLANK_NORMAL \n");
+			dpms = SYSTEM_CTRL_DPMS_VPHP;
+			pps = PANEL_DISPLAY_CTRL_DATA_DISABLE;
+			crtdb = CRT_DISPLAY_CTRL_BLANK_ON;
+			break;
+#endif
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,10)
+		case FB_BLANK_VSYNC_SUSPEND:
+#else
+		case VESA_VSYNC_SUSPEND:
+#endif
+			dpms = SYSTEM_CTRL_DPMS_VNHP;
+			pps = PANEL_DISPLAY_CTRL_DATA_DISABLE;
+			crtdb = CRT_DISPLAY_CTRL_BLANK_ON;
+			break;
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,10)
+		case FB_BLANK_HSYNC_SUSPEND:
+#else
+		case VESA_HSYNC_SUSPEND:
+#endif
+			dpms = SYSTEM_CTRL_DPMS_VPHN;
+			pps = PANEL_DISPLAY_CTRL_DATA_DISABLE;
+			crtdb = CRT_DISPLAY_CTRL_BLANK_ON;
+			break;
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,10)
+		case FB_BLANK_POWERDOWN:
+#else
+		case VESA_POWERDOWN:
+#endif
+			dpms = SYSTEM_CTRL_DPMS_VNHN;
+			pps = PANEL_DISPLAY_CTRL_DATA_DISABLE;
+			crtdb = CRT_DISPLAY_CTRL_BLANK_ON;
+			break;
+	}
+
+	if(output->paths & sm750_crt){
+
+		POKE32(SYSTEM_CTRL,FIELD_VALUE(PEEK32(SYSTEM_CTRL), SYSTEM_CTRL, DPMS, dpms));
+		POKE32(CRT_DISPLAY_CTRL,FIELD_VALUE(PEEK32(CRT_DISPLAY_CTRL), CRT_DISPLAY_CTRL,BLANK, crtdb));
+	}
+
+	if(output->paths & sm750_panel){
+		POKE32(PANEL_DISPLAY_CTRL, FIELD_VALUE(PEEK32(PANEL_DISPLAY_CTRL), PANEL_DISPLAY_CTRL, DATA, pps));
+	}
+
+	return 0;
+}
+
+
+void hw_sm750_initAccel(struct lynx_share * share)
+{
+	u32 reg;
+	enable2DEngine(1);
+
+	if(getChipType() == SM750LE){
+		reg = PEEK32(DE_STATE1);
+		reg = FIELD_SET(reg, DE_STATE1, DE_ABORT,ON);
+		POKE32(DE_STATE1,reg);
+
+		reg = PEEK32(DE_STATE1);
+		reg = FIELD_SET(reg, DE_STATE1, DE_ABORT,OFF);
+		POKE32(DE_STATE1, reg);
+
+	}else{
+		/* engine reset */
+		reg = PEEK32(SYSTEM_CTRL);
+	    reg = FIELD_SET(reg, SYSTEM_CTRL, DE_ABORT,ON);
+		POKE32(SYSTEM_CTRL, reg);
+
+		reg = PEEK32(SYSTEM_CTRL);
+		reg = FIELD_SET(reg, SYSTEM_CTRL, DE_ABORT,OFF);
+		POKE32(SYSTEM_CTRL, reg);
+	}
+
+	/* call 2d init */
+	share->accel.de_init(&share->accel);
+}
+
+int hw_sm750le_deWait(void)
+{
+	int i=0x10000000;
+	while(i--){
+		unsigned int dwVal = PEEK32(DE_STATE2);
+		if((FIELD_GET(dwVal, DE_STATE2, DE_STATUS) == DE_STATE2_DE_STATUS_IDLE) &&
+			(FIELD_GET(dwVal, DE_STATE2, DE_FIFO)  == DE_STATE2_DE_FIFO_EMPTY) &&
+			(FIELD_GET(dwVal, DE_STATE2, DE_MEM_FIFO) == DE_STATE2_DE_MEM_FIFO_EMPTY))
+		{
+			return 0;
+		}
+	}
+	/* timeout error */
+	return -1;
+}
+
+
+int hw_sm750_deWait(void)
+{
+	int i=0x10000000;
+	while(i--){
+		unsigned int dwVal = PEEK32(SYSTEM_CTRL);
+		if((FIELD_GET(dwVal,SYSTEM_CTRL,DE_STATUS) == SYSTEM_CTRL_DE_STATUS_IDLE) &&
+			(FIELD_GET(dwVal,SYSTEM_CTRL,DE_FIFO)  == SYSTEM_CTRL_DE_FIFO_EMPTY) &&
+			(FIELD_GET(dwVal,SYSTEM_CTRL,DE_MEM_FIFO) == SYSTEM_CTRL_DE_MEM_FIFO_EMPTY))
+		{
+			return 0;
+		}
+	}
+	/* timeout error */
+	return -1;
+}
+
+int hw_sm750_pan_display(struct lynxfb_crtc *crtc,
+        const struct fb_var_screeninfo *var,
+        const struct fb_info *info)
+{
+    uint32_t total;
+    //check params
+    if ((var->xoffset + var->xres > var->xres_virtual) ||
+            (var->yoffset + var->yres > var->yres_virtual)) {
+        return -EINVAL;
+    }
+
+    total = var->yoffset * info->fix.line_length +
+        ((var->xoffset * var->bits_per_pixel) >> 3);
+    total += crtc->oScreen;
+    if (crtc->channel == sm750_primary) {
+        POKE32(PANEL_FB_ADDRESS,
+                FIELD_VALUE(PEEK32(PANEL_FB_ADDRESS),
+                    PANEL_FB_ADDRESS, ADDRESS, total));
+    } else {
+        POKE32(CRT_FB_ADDRESS,
+                FIELD_VALUE(PEEK32(CRT_FB_ADDRESS),
+                    CRT_FB_ADDRESS, ADDRESS, total));
+    }
+    return 0;
+}
+
diff --git a/drivers/staging/sm750fb/sm750_hw.h b/drivers/staging/sm750fb/sm750_hw.h
new file mode 100644
index 0000000..b05be5e
--- /dev/null
+++ b/drivers/staging/sm750fb/sm750_hw.h
@@ -0,0 +1,104 @@
+#ifndef LYNX_HW750_H__
+#define LYNX_HW750_H__
+
+
+#define DEFAULT_SM750_CHIP_CLOCK 		290
+#define DEFAULT_SM750LE_CHIP_CLOCK  	333
+#ifndef SM750LE_REVISION_ID
+#define SM750LE_REVISION_ID (unsigned char)0xfe
+#endif
+
+//#define DEFAULT_MEM_CLOCK	(DEFAULT_SM750_CHIP_CLOCK/1)
+//#define DEFAULT_MASTER_CLOCK	(DEFAULT_SM750_CHIP_CLOCK/3)
+
+
+enum sm750_pnltype{
+
+	sm750_24TFT = 0,/* 24bit tft */
+
+	sm750_dualTFT = 2,/* dual 18 bit tft */
+
+	sm750_doubleTFT = 1,/* 36 bit double pixel tft */
+};
+
+/* vga channel is not concerned  */
+enum sm750_dataflow{
+	sm750_simul_pri,/* primary => all head */
+
+	sm750_simul_sec,/* secondary => all head */
+
+	sm750_dual_normal,/* 	primary => panel head and secondary => crt */
+
+	sm750_dual_swap,/* 	primary => crt head and secondary => panel */
+};
+
+
+enum sm750_channel{
+	sm750_primary = 0,
+	/* enum value equal to the register filed data */
+	sm750_secondary = 1,
+};
+
+enum sm750_path{
+	sm750_panel = 1,
+	sm750_crt = 2,
+	sm750_pnc = 3,/* panel and crt */
+};
+
+struct init_status{
+	ushort powerMode;
+	/* below three clocks are in unit of MHZ*/
+	ushort chip_clk;
+	ushort mem_clk;
+	ushort master_clk;
+	ushort setAllEngOff;
+	ushort resetMemory;
+};
+
+struct sm750_state{
+	struct init_status initParm;
+	enum sm750_pnltype pnltype;
+	enum sm750_dataflow dataflow;
+	int nocrt;
+	int xLCD;
+	int yLCD;
+};
+
+/* 	sm750_share stands for a presentation of two frame buffer
+	that use one sm750 adaptor, it is similiar to the super class of lynx_share
+	in C++
+*/
+
+struct sm750_share{
+	/* it's better to put lynx_share struct to the first place of sm750_share */
+	struct lynx_share share;
+	struct sm750_state state;
+	int hwCursor;
+	/* 	0: no hardware cursor
+		1: primary crtc hw cursor enabled,
+		2: secondary crtc hw cursor enabled
+		3: both ctrc hw cursor enabled
+	*/
+};
+
+int hw_sm750_map(struct lynx_share* share,struct pci_dev* pdev);
+int hw_sm750_inithw(struct lynx_share*,struct pci_dev *);
+void hw_sm750_initAccel(struct lynx_share *);
+int hw_sm750_deWait(void);
+int hw_sm750le_deWait(void);
+
+resource_size_t hw_sm750_getVMSize(struct lynx_share *);
+int hw_sm750_output_checkMode(struct lynxfb_output*,struct fb_var_screeninfo*);
+int hw_sm750_output_setMode(struct lynxfb_output*,struct fb_var_screeninfo*,struct fb_fix_screeninfo*);
+int hw_sm750_crtc_checkMode(struct lynxfb_crtc*,struct fb_var_screeninfo*);
+int hw_sm750_crtc_setMode(struct lynxfb_crtc*,struct fb_var_screeninfo*,struct fb_fix_screeninfo*);
+int hw_sm750_setColReg(struct lynxfb_crtc*,ushort,ushort,ushort,ushort);
+int hw_sm750_setBLANK(struct lynxfb_output*,int);
+int hw_sm750le_setBLANK(struct lynxfb_output*,int);
+void hw_sm750_crtc_clear(struct lynxfb_crtc*);
+void hw_sm750_output_clear(struct lynxfb_output*);
+int hw_sm750_pan_display(struct lynxfb_crtc *crtc,
+        const struct fb_var_screeninfo *var,
+        const struct fb_info *info);
+
+#endif
diff --git a/drivers/staging/sm7xxfb/sm7xx.h b/drivers/staging/sm7xxfb/sm7xx.h
index 7cc1896..c5d6253 100644
--- a/drivers/staging/sm7xxfb/sm7xx.h
+++ b/drivers/staging/sm7xxfb/sm7xx.h
@@ -119,7 +119,7 @@ struct ModeInit {
 /**********************************************************************
 			 SM712 Mode table.
  **********************************************************************/
-struct ModeInit vgamode[] = {
+static struct ModeInit vgamode[] = {
 	{
 	 /*  mode#0: 640 x 480  16Bpp  60Hz */
 	 640, 480, 16, 60,
diff --git a/drivers/staging/sm7xxfb/sm7xxfb.c b/drivers/staging/sm7xxfb/sm7xxfb.c
index ebd9536..77f51a0 100644
--- a/drivers/staging/sm7xxfb/sm7xxfb.c
+++ b/drivers/staging/sm7xxfb/sm7xxfb.c
@@ -113,13 +113,15 @@ static struct vesa_mode vesa_mode_table[] = {
 
 static struct screen_info smtc_scr_info;
 
+static char *mode_option;
+
 /* process command line options, get vga parameter */
-static int __init sm7xx_vga_setup(char *options)
+static void __init sm7xx_vga_setup(char *options)
 {
 	int i;
 
 	if (!options || !*options)
-		return -EINVAL;
+		return;
 
 	smtc_scr_info.lfb_width = 0;
 	smtc_scr_info.lfb_height = 0;
@@ -133,13 +135,10 @@ static int __init sm7xx_vga_setup(char *options)
 			smtc_scr_info.lfb_height =
 						vesa_mode_table[i].lfb_height;
 			smtc_scr_info.lfb_depth  = vesa_mode_table[i].lfb_depth;
-			return 0;
+			return;
 		}
 	}
-
-	return -1;
 }
-__setup("vga=", sm7xx_vga_setup);
 
 static void sm712_setpalette(int regno, unsigned red, unsigned green,
 			     unsigned blue, struct fb_info *info)
@@ -777,6 +776,12 @@ static int smtcfb_pci_probe(struct pci_dev *pdev,
 	if (err)
 		return err;
 
+	err = pci_request_region(pdev, 0, "sm7xxfb");
+	if (err < 0) {
+		dev_err(&pdev->dev, "cannot reserve framebuffer region\n");
+		goto failed_regions;
+	}
+
 	sprintf(smtcfb_fix.id, "sm%Xfb", ent->device);
 
 	sfb = smtc_alloc_fb_info(pdev);
@@ -906,6 +911,9 @@ failed_fb:
 	smtc_free_fb_info(sfb);
 
 failed_free:
+	pci_release_region(pdev, 0);
+
+failed_regions:
 	pci_disable_device(pdev);
 
 	return err;
@@ -923,6 +931,8 @@ static const struct pci_device_id smtcfb_pci_table[] = {
 	{0,}
 };
 
+MODULE_DEVICE_TABLE(pci, smtcfb_pci_table);
+
 static void smtcfb_pci_remove(struct pci_dev *pdev)
 {
 	struct smtcfb_info *sfb;
@@ -932,6 +942,8 @@ static void smtcfb_pci_remove(struct pci_dev *pdev)
 	smtc_unmap_mmio(sfb);
 	unregister_framebuffer(&sfb->fb);
 	smtc_free_fb_info(sfb);
+	pci_release_region(pdev, 0);
+	pci_disable_device(pdev);
 }
 
 #ifdef CONFIG_PM
@@ -1017,7 +1029,29 @@ static struct pci_driver smtcfb_driver = {
 	.driver.pm  = SM7XX_PM_OPS,
 };
 
-module_pci_driver(smtcfb_driver);
+static int __init sm712fb_init(void)
+{
+#ifndef MODULE
+	char *option = NULL;
+
+	if (fb_get_options("sm712fb", &option))
+		return -ENODEV;
+	if (option && *option)
+		mode_option = option;
+#endif
+	sm7xx_vga_setup(mode_option);
+
+	return pci_register_driver(&smtcfb_driver);
+}
+
+module_init(sm712fb_init);
+
+static void __exit sm712fb_exit(void)
+{
+	pci_unregister_driver(&smtcfb_driver);
+}
+
+module_exit(sm712fb_exit);
 
 MODULE_AUTHOR("Siliconmotion ");
 MODULE_DESCRIPTION("Framebuffer driver for SMI Graphic Cards");
diff --git a/drivers/staging/speakup/kobjects.c b/drivers/staging/speakup/kobjects.c
index 3708bc1..0211df6 100644
--- a/drivers/staging/speakup/kobjects.c
+++ b/drivers/staging/speakup/kobjects.c
@@ -840,12 +840,10 @@ static ssize_t message_show(struct kobject *kobj,
 static ssize_t message_store(struct kobject *kobj, struct kobj_attribute *attr,
 	const char *buf, size_t count)
 {
-	ssize_t retval = 0;
 	struct msg_group_t *group = spk_find_msg_group(attr->attr.name);
 
 	BUG_ON(!group);
-	retval = message_store_helper(buf, count, group);
-	return retval;
+	return message_store_helper(buf, count, group);
 }
 
 /*
diff --git a/drivers/staging/speakup/main.c b/drivers/staging/speakup/main.c
index e9f0c15..c955976 100644
--- a/drivers/staging/speakup/main.c
+++ b/drivers/staging/speakup/main.c
@@ -423,7 +423,8 @@ static void announce_edge(struct vc_data *vc, int msg_id)
 	if (spk_bleeps & 1)
 		bleep(spk_y);
 	if ((spk_bleeps & 2) && (msg_id < edge_quiet))
-		synth_printf("%s\n", spk_msg_get(MSG_EDGE_MSGS_START + msg_id - 1));
+		synth_printf("%s\n",
+			spk_msg_get(MSG_EDGE_MSGS_START + msg_id - 1));
 }
 
 static void speak_char(u_char ch)
@@ -1131,7 +1132,8 @@ static void spkup_write(const char *in_buf, int count)
 	if (in_count > 2 && rep_count > 2) {
 		if (last_type & CH_RPT) {
 			synth_printf(" ");
-			synth_printf(spk_msg_get(MSG_REPEAT_DESC2), ++rep_count);
+			synth_printf(spk_msg_get(MSG_REPEAT_DESC2),
+					++rep_count);
 			synth_printf(" ");
 		}
 		rep_count = 0;
@@ -1527,7 +1529,7 @@ static void update_color_buffer(struct vc_data *vc, const char *ic, int len)
 	int i, bi, hi;
 	int vc_num = vc->vc_num;
 
-	bi = ((vc->vc_attr & 0x70) >> 4);
+	bi = (vc->vc_attr & 0x70) >> 4;
 	hi = speakup_console[vc_num]->ht.highsize[bi];
 
 	i = 0;
@@ -1847,7 +1849,8 @@ static void speakup_win_set(struct vc_data *vc)
 			win_right = spk_x;
 		}
 		snprintf(info, sizeof(info), spk_msg_get(MSG_WINDOW_BOUNDARY),
-			 (win_start) ? spk_msg_get(MSG_END) : spk_msg_get(MSG_START),
+			 (win_start) ?
+				spk_msg_get(MSG_END) : spk_msg_get(MSG_START),
 			 (int)spk_y + 1, (int)spk_x + 1);
 	}
 	synth_printf("%s\n", info);
diff --git a/drivers/staging/speakup/serialio.h b/drivers/staging/speakup/serialio.h
index 317bb84..1b39921 100644
--- a/drivers/staging/speakup/serialio.h
+++ b/drivers/staging/speakup/serialio.h
@@ -34,6 +34,7 @@ struct old_serial_port {
 #define SPK_TIMEOUT 100
 #define BOTH_EMPTY (UART_LSR_TEMT | UART_LSR_THRE)
 
-#define spk_serial_tx_busy() ((inb(speakup_info.port_tts + UART_LSR) & BOTH_EMPTY) != BOTH_EMPTY)
+#define spk_serial_tx_busy() \
+	((inb(speakup_info.port_tts + UART_LSR) & BOTH_EMPTY) != BOTH_EMPTY)
 
 #endif
diff --git a/drivers/staging/speakup/speakup.h b/drivers/staging/speakup/speakup.h
index 898dce5..a7f4962 100644
--- a/drivers/staging/speakup/speakup.h
+++ b/drivers/staging/speakup/speakup.h
@@ -61,10 +61,12 @@ extern struct st_var_header *spk_get_var_header(enum var_id_t var_id);
 extern struct st_var_header *spk_var_header_by_name(const char *name);
 extern struct punc_var_t *spk_get_punc_var(enum var_id_t var_id);
 extern int spk_set_num_var(int val, struct st_var_header *var, int how);
-extern int spk_set_string_var(const char *page, struct st_var_header *var, int len);
+extern int spk_set_string_var(const char *page, struct st_var_header *var,
+				int len);
 extern int spk_set_mask_bits(const char *input, const int which, const int how);
 extern special_func spk_special_handler;
-extern int spk_handle_help(struct vc_data *vc, u_char type, u_char ch, u_short key);
+extern int spk_handle_help(struct vc_data *vc, u_char type, u_char ch,
+				u_short key);
 extern int synth_init(char *name);
 extern void synth_release(void);
 
diff --git a/drivers/staging/speakup/speakup_acntpc.c b/drivers/staging/speakup/speakup_acntpc.c
index f0bfd9e..f418893 100644
--- a/drivers/staging/speakup/speakup_acntpc.c
+++ b/drivers/staging/speakup/speakup_acntpc.c
@@ -318,18 +318,8 @@ module_param_named(start, synth_acntpc.startup, short, S_IRUGO);
 MODULE_PARM_DESC(port, "Set the port for the synthesizer (override probing).");
 MODULE_PARM_DESC(start, "Start the synthesizer once it is loaded.");
 
-static int __init acntpc_init(void)
-{
-	return synth_add(&synth_acntpc);
-}
-
-static void __exit acntpc_exit(void)
-{
-	synth_remove(&synth_acntpc);
-}
+module_spk_synth(synth_acntpc);
 
-module_init(acntpc_init);
-module_exit(acntpc_exit);
 MODULE_AUTHOR("Kirk Reiser <kirk@braille.uwo.ca>");
 MODULE_AUTHOR("David Borowski");
 MODULE_DESCRIPTION("Speakup support for Accent PC synthesizer");
diff --git a/drivers/staging/speakup/speakup_acntsa.c b/drivers/staging/speakup/speakup_acntsa.c
index 3f2b569..af2690f 100644
--- a/drivers/staging/speakup/speakup_acntsa.c
+++ b/drivers/staging/speakup/speakup_acntsa.c
@@ -143,18 +143,8 @@ module_param_named(start, synth_acntsa.startup, short, S_IRUGO);
 MODULE_PARM_DESC(ser, "Set the serial port for the synthesizer (0-based).");
 MODULE_PARM_DESC(start, "Start the synthesizer once it is loaded.");
 
-static int __init acntsa_init(void)
-{
-	return synth_add(&synth_acntsa);
-}
-
-static void __exit acntsa_exit(void)
-{
-	synth_remove(&synth_acntsa);
-}
+module_spk_synth(synth_acntsa);
 
-module_init(acntsa_init);
-module_exit(acntsa_exit);
 MODULE_AUTHOR("Kirk Reiser <kirk@braille.uwo.ca>");
 MODULE_AUTHOR("David Borowski");
 MODULE_DESCRIPTION("Speakup support for Accent SA synthesizer");
diff --git a/drivers/staging/speakup/speakup_apollo.c b/drivers/staging/speakup/speakup_apollo.c
index 678b263..51788f7 100644
--- a/drivers/staging/speakup/speakup_apollo.c
+++ b/drivers/staging/speakup/speakup_apollo.c
@@ -207,18 +207,8 @@ module_param_named(start, synth_apollo.startup, short, S_IRUGO);
 MODULE_PARM_DESC(ser, "Set the serial port for the synthesizer (0-based).");
 MODULE_PARM_DESC(start, "Start the synthesizer once it is loaded.");
 
-static int __init apollo_init(void)
-{
-	return synth_add(&synth_apollo);
-}
-
-static void __exit apollo_exit(void)
-{
-	synth_remove(&synth_apollo);
-}
+module_spk_synth(synth_apollo);
 
-module_init(apollo_init);
-module_exit(apollo_exit);
 MODULE_AUTHOR("Kirk Reiser <kirk@braille.uwo.ca>");
 MODULE_AUTHOR("David Borowski");
 MODULE_DESCRIPTION("Speakup support for Apollo II synthesizer");
diff --git a/drivers/staging/speakup/speakup_audptr.c b/drivers/staging/speakup/speakup_audptr.c
index 5cbaec8..ea89e36 100644
--- a/drivers/staging/speakup/speakup_audptr.c
+++ b/drivers/staging/speakup/speakup_audptr.c
@@ -177,18 +177,8 @@ module_param_named(start, synth_audptr.startup, short, S_IRUGO);
 MODULE_PARM_DESC(ser, "Set the serial port for the synthesizer (0-based).");
 MODULE_PARM_DESC(start, "Start the synthesizer once it is loaded.");
 
-static int __init audptr_init(void)
-{
-	return synth_add(&synth_audptr);
-}
-
-static void __exit audptr_exit(void)
-{
-	synth_remove(&synth_audptr);
-}
+module_spk_synth(synth_audptr);
 
-module_init(audptr_init);
-module_exit(audptr_exit);
 MODULE_AUTHOR("Kirk Reiser <kirk@braille.uwo.ca>");
 MODULE_AUTHOR("David Borowski");
 MODULE_DESCRIPTION("Speakup support for Audapter synthesizer");
diff --git a/drivers/staging/speakup/speakup_bns.c b/drivers/staging/speakup/speakup_bns.c
index 2f07028..80f8358 100644
--- a/drivers/staging/speakup/speakup_bns.c
+++ b/drivers/staging/speakup/speakup_bns.c
@@ -127,18 +127,8 @@ module_param_named(start, synth_bns.startup, short, S_IRUGO);
 MODULE_PARM_DESC(ser, "Set the serial port for the synthesizer (0-based).");
 MODULE_PARM_DESC(start, "Start the synthesizer once it is loaded.");
 
-static int __init bns_init(void)
-{
-	return synth_add(&synth_bns);
-}
+module_spk_synth(synth_bns);
 
-static void __exit bns_exit(void)
-{
-	synth_remove(&synth_bns);
-}
-
-module_init(bns_init);
-module_exit(bns_exit);
 MODULE_AUTHOR("Kirk Reiser <kirk@braille.uwo.ca>");
 MODULE_AUTHOR("David Borowski");
 MODULE_DESCRIPTION("Speakup support for Braille 'n Speak synthesizers");
diff --git a/drivers/staging/speakup/speakup_decext.c b/drivers/staging/speakup/speakup_decext.c
index 5550290..e0b5db9 100644
--- a/drivers/staging/speakup/speakup_decext.c
+++ b/drivers/staging/speakup/speakup_decext.c
@@ -207,10 +207,12 @@ static void do_catch_up(struct spk_synth *synth)
 			if (time_after_eq(jiffies, jiff_max)) {
 				if (!in_escape)
 					spk_serial_out(PROCSPEECH);
-				spin_lock_irqsave(&speakup_info.spinlock, flags);
+				spin_lock_irqsave(&speakup_info.spinlock,
+							flags);
 				jiffy_delta_val = jiffy_delta->u.n.value;
 				delay_time_val = delay_time->u.n.value;
-				spin_unlock_irqrestore(&speakup_info.spinlock, flags);
+				spin_unlock_irqrestore(&speakup_info.spinlock,
+							flags);
 				schedule_timeout(msecs_to_jiffies
 						 (delay_time_val));
 				jiff_max = jiffies + jiffy_delta_val;
@@ -234,18 +236,8 @@ module_param_named(start, synth_decext.startup, short, S_IRUGO);
 MODULE_PARM_DESC(ser, "Set the serial port for the synthesizer (0-based).");
 MODULE_PARM_DESC(start, "Start the synthesizer once it is loaded.");
 
-static int __init decext_init(void)
-{
-	return synth_add(&synth_decext);
-}
-
-static void __exit decext_exit(void)
-{
-	synth_remove(&synth_decext);
-}
+module_spk_synth(synth_decext);
 
-module_init(decext_init);
-module_exit(decext_exit);
 MODULE_AUTHOR("Kirk Reiser <kirk@braille.uwo.ca>");
 MODULE_AUTHOR("David Borowski");
 MODULE_DESCRIPTION("Speakup support for DECtalk External synthesizers");
diff --git a/drivers/staging/speakup/speakup_decpc.c b/drivers/staging/speakup/speakup_decpc.c
index 7c9c432..437e13a 100644
--- a/drivers/staging/speakup/speakup_decpc.c
+++ b/drivers/staging/speakup/speakup_decpc.c
@@ -423,10 +423,12 @@ static void do_catch_up(struct spk_synth *synth)
 			if (time_after_eq(jiffies, jiff_max)) {
 				if (!in_escape)
 					dt_sendchar(PROCSPEECH);
-				spin_lock_irqsave(&speakup_info.spinlock, flags);
+				spin_lock_irqsave(&speakup_info.spinlock,
+							flags);
 				jiffy_delta_val = jiffy_delta->u.n.value;
 				delay_time_val = delay_time->u.n.value;
-				spin_unlock_irqrestore(&speakup_info.spinlock, flags);
+				spin_unlock_irqrestore(&speakup_info.spinlock,
+							flags);
 				schedule_timeout(msecs_to_jiffies
 						 (delay_time_val));
 				jiff_max = jiffies + jiffy_delta_val;
@@ -491,18 +493,8 @@ module_param_named(start, synth_dec_pc.startup, short, S_IRUGO);
 
 MODULE_PARM_DESC(start, "Start the synthesizer once it is loaded.");
 
-static int __init decpc_init(void)
-{
-	return synth_add(&synth_dec_pc);
-}
-
-static void __exit decpc_exit(void)
-{
-	synth_remove(&synth_dec_pc);
-}
+module_spk_synth(synth_dec_pc);
 
-module_init(decpc_init);
-module_exit(decpc_exit);
 MODULE_AUTHOR("Kirk Reiser <kirk@braille.uwo.ca>");
 MODULE_AUTHOR("David Borowski");
 MODULE_DESCRIPTION("Speakup support for DECtalk PC synthesizers");
diff --git a/drivers/staging/speakup/speakup_dectlk.c b/drivers/staging/speakup/speakup_dectlk.c
index 69e7c2b..b5a23d4 100644
--- a/drivers/staging/speakup/speakup_dectlk.c
+++ b/drivers/staging/speakup/speakup_dectlk.c
@@ -306,18 +306,8 @@ module_param_named(start, synth_dectlk.startup, short, S_IRUGO);
 MODULE_PARM_DESC(ser, "Set the serial port for the synthesizer (0-based).");
 MODULE_PARM_DESC(start, "Start the synthesizer once it is loaded.");
 
-static int __init dectlk_init(void)
-{
-	return synth_add(&synth_dectlk);
-}
-
-static void __exit dectlk_exit(void)
-{
-	synth_remove(&synth_dectlk);
-}
+module_spk_synth(synth_dectlk);
 
-module_init(dectlk_init);
-module_exit(dectlk_exit);
 MODULE_AUTHOR("Kirk Reiser <kirk@braille.uwo.ca>");
 MODULE_AUTHOR("David Borowski");
 MODULE_DESCRIPTION("Speakup support for DECtalk Express synthesizers");
diff --git a/drivers/staging/speakup/speakup_dtlk.c b/drivers/staging/speakup/speakup_dtlk.c
index 89592c0..345efd33 100644
--- a/drivers/staging/speakup/speakup_dtlk.c
+++ b/drivers/staging/speakup/speakup_dtlk.c
@@ -388,18 +388,8 @@ module_param_named(start, synth_dtlk.startup, short, S_IRUGO);
 MODULE_PARM_DESC(port, "Set the port for the synthesizer (override probing).");
 MODULE_PARM_DESC(start, "Start the synthesizer once it is loaded.");
 
-static int __init dtlk_init(void)
-{
-	return synth_add(&synth_dtlk);
-}
-
-static void __exit dtlk_exit(void)
-{
-	synth_remove(&synth_dtlk);
-}
+module_spk_synth(synth_dtlk);
 
-module_init(dtlk_init);
-module_exit(dtlk_exit);
 MODULE_AUTHOR("Kirk Reiser <kirk@braille.uwo.ca>");
 MODULE_AUTHOR("David Borowski");
 MODULE_DESCRIPTION("Speakup support for DoubleTalk PC synthesizers");
diff --git a/drivers/staging/speakup/speakup_dummy.c b/drivers/staging/speakup/speakup_dummy.c
index 362342a..f668112 100644
--- a/drivers/staging/speakup/speakup_dummy.c
+++ b/drivers/staging/speakup/speakup_dummy.c
@@ -129,18 +129,8 @@ module_param_named(start, synth_dummy.startup, short, S_IRUGO);
 MODULE_PARM_DESC(ser, "Set the serial port for the synthesizer (0-based).");
 MODULE_PARM_DESC(start, "Start the synthesizer once it is loaded.");
 
-static int __init dummy_init(void)
-{
-	return synth_add(&synth_dummy);
-}
+module_spk_synth(synth_dummy);
 
-static void __exit dummy_exit(void)
-{
-	synth_remove(&synth_dummy);
-}
-
-module_init(dummy_init);
-module_exit(dummy_exit);
 MODULE_AUTHOR("Samuel Thibault <samuel.thibault@ens-lyon.org>");
 MODULE_DESCRIPTION("Speakup support for text console");
 MODULE_LICENSE("GPL");
diff --git a/drivers/staging/speakup/speakup_keypc.c b/drivers/staging/speakup/speakup_keypc.c
index cef20fd..6ea0273 100644
--- a/drivers/staging/speakup/speakup_keypc.c
+++ b/drivers/staging/speakup/speakup_keypc.c
@@ -319,18 +319,8 @@ module_param_named(start, synth_keypc.startup, short, S_IRUGO);
 MODULE_PARM_DESC(port, "Set the port for the synthesizer (override probing).");
 MODULE_PARM_DESC(start, "Start the synthesizer once it is loaded.");
 
-static int __init keypc_init(void)
-{
-	return synth_add(&synth_keypc);
-}
-
-static void __exit keypc_exit(void)
-{
-	synth_remove(&synth_keypc);
-}
+module_spk_synth(synth_keypc);
 
-module_init(keypc_init);
-module_exit(keypc_exit);
 MODULE_AUTHOR("David Borowski");
 MODULE_DESCRIPTION("Speakup support for Keynote Gold PC synthesizers");
 MODULE_LICENSE("GPL");
diff --git a/drivers/staging/speakup/speakup_ltlk.c b/drivers/staging/speakup/speakup_ltlk.c
index 377a6e2..cc4806b 100644
--- a/drivers/staging/speakup/speakup_ltlk.c
+++ b/drivers/staging/speakup/speakup_ltlk.c
@@ -175,18 +175,8 @@ module_param_named(start, synth_ltlk.startup, short, S_IRUGO);
 MODULE_PARM_DESC(ser, "Set the serial port for the synthesizer (0-based).");
 MODULE_PARM_DESC(start, "Start the synthesizer once it is loaded.");
 
-static int __init ltlk_init(void)
-{
-	return synth_add(&synth_ltlk);
-}
-
-static void __exit ltlk_exit(void)
-{
-	synth_remove(&synth_ltlk);
-}
+module_spk_synth(synth_ltlk);
 
-module_init(ltlk_init);
-module_exit(ltlk_exit);
 MODULE_AUTHOR("Kirk Reiser <kirk@braille.uwo.ca>");
 MODULE_AUTHOR("David Borowski");
 MODULE_DESCRIPTION("Speakup support for DoubleTalk LT/LiteTalk synthesizers");
diff --git a/drivers/staging/speakup/speakup_soft.c b/drivers/staging/speakup/speakup_soft.c
index e6e93fb..fb31bb9 100644
--- a/drivers/staging/speakup/speakup_soft.c
+++ b/drivers/staging/speakup/speakup_soft.c
@@ -350,19 +350,8 @@ module_param_named(start, synth_soft.startup, short, S_IRUGO);
 
 MODULE_PARM_DESC(start, "Start the synthesizer once it is loaded.");
 
+module_spk_synth(synth_soft);
 
-static int __init soft_init(void)
-{
-	return synth_add(&synth_soft);
-}
-
-static void __exit soft_exit(void)
-{
-	synth_remove(&synth_soft);
-}
-
-module_init(soft_init);
-module_exit(soft_exit);
 MODULE_AUTHOR("Kirk Reiser <kirk@braille.uwo.ca>");
 MODULE_DESCRIPTION("Speakup userspace software synthesizer support");
 MODULE_LICENSE("GPL");
diff --git a/drivers/staging/speakup/speakup_spkout.c b/drivers/staging/speakup/speakup_spkout.c
index bccddf8..1007a61 100644
--- a/drivers/staging/speakup/speakup_spkout.c
+++ b/drivers/staging/speakup/speakup_spkout.c
@@ -146,18 +146,8 @@ module_param_named(start, synth_spkout.startup, short, S_IRUGO);
 MODULE_PARM_DESC(ser, "Set the serial port for the synthesizer (0-based).");
 MODULE_PARM_DESC(start, "Start the synthesizer once it is loaded.");
 
-static int __init spkout_init(void)
-{
-	return synth_add(&synth_spkout);
-}
-
-static void __exit spkout_exit(void)
-{
-	synth_remove(&synth_spkout);
-}
+module_spk_synth(synth_spkout);
 
-module_init(spkout_init);
-module_exit(spkout_exit);
 MODULE_AUTHOR("Kirk Reiser <kirk@braille.uwo.ca>");
 MODULE_AUTHOR("David Borowski");
 MODULE_DESCRIPTION("Speakup support for Speak Out synthesizers");
diff --git a/drivers/staging/speakup/speakup_txprt.c b/drivers/staging/speakup/speakup_txprt.c
index dbe84b1..6c21e71 100644
--- a/drivers/staging/speakup/speakup_txprt.c
+++ b/drivers/staging/speakup/speakup_txprt.c
@@ -127,18 +127,8 @@ module_param_named(start, synth_txprt.startup, short, S_IRUGO);
 MODULE_PARM_DESC(ser, "Set the serial port for the synthesizer (0-based).");
 MODULE_PARM_DESC(start, "Start the synthesizer once it is loaded.");
 
-static int __init txprt_init(void)
-{
-	return synth_add(&synth_txprt);
-}
+module_spk_synth(synth_txprt);
 
-static void __exit txprt_exit(void)
-{
-	synth_remove(&synth_txprt);
-}
-
-module_init(txprt_init);
-module_exit(txprt_exit);
 MODULE_AUTHOR("Kirk Reiser <kirk@braille.uwo.ca>");
 MODULE_AUTHOR("David Borowski");
 MODULE_DESCRIPTION("Speakup support for Transport synthesizers");
diff --git a/drivers/staging/speakup/spk_priv.h b/drivers/staging/speakup/spk_priv.h
index 637ba67..1ef3795 100644
--- a/drivers/staging/speakup/spk_priv.h
+++ b/drivers/staging/speakup/spk_priv.h
@@ -44,34 +44,34 @@
 
 #define KT_SPKUP 15
 
-extern const struct old_serial_port *spk_serial_init(int index);
-extern void spk_stop_serial_interrupt(void);
-extern int spk_wait_for_xmitr(void);
-extern unsigned char spk_serial_in(void);
-extern unsigned char spk_serial_in_nowait(void);
-extern int spk_serial_out(const char ch);
-extern void spk_serial_release(void);
+const struct old_serial_port *spk_serial_init(int index);
+void spk_stop_serial_interrupt(void);
+int spk_wait_for_xmitr(void);
+unsigned char spk_serial_in(void);
+unsigned char spk_serial_in_nowait(void);
+int spk_serial_out(const char ch);
+void spk_serial_release(void);
 
-extern char synth_buffer_getc(void);
-extern char synth_buffer_peek(void);
-extern int synth_buffer_empty(void);
-extern struct var_t *spk_get_var(enum var_id_t var_id);
-extern ssize_t spk_var_show(struct kobject *kobj, struct kobj_attribute *attr,
-	char *buf);
-extern ssize_t spk_var_store(struct kobject *kobj, struct kobj_attribute *attr,
-	const char *buf, size_t count);
+char synth_buffer_getc(void);
+char synth_buffer_peek(void);
+int synth_buffer_empty(void);
+struct var_t *spk_get_var(enum var_id_t var_id);
+ssize_t spk_var_show(struct kobject *kobj, struct kobj_attribute *attr,
+		     char *buf);
+ssize_t spk_var_store(struct kobject *kobj, struct kobj_attribute *attr,
+		      const char *buf, size_t count);
 
-extern int spk_serial_synth_probe(struct spk_synth *synth);
-extern const char *spk_synth_immediate(struct spk_synth *synth, const char *buff);
-extern void spk_do_catch_up(struct spk_synth *synth);
-extern void spk_synth_flush(struct spk_synth *synth);
-extern int spk_synth_is_alive_nop(struct spk_synth *synth);
-extern int spk_synth_is_alive_restart(struct spk_synth *synth);
-extern void synth_printf(const char *buf, ...);
-extern int synth_request_region(u_long, u_long);
-extern int synth_release_region(u_long, u_long);
-extern int synth_add(struct spk_synth *in_synth);
-extern void synth_remove(struct spk_synth *in_synth);
+int spk_serial_synth_probe(struct spk_synth *synth);
+const char *spk_synth_immediate(struct spk_synth *synth, const char *buff);
+void spk_do_catch_up(struct spk_synth *synth);
+void spk_synth_flush(struct spk_synth *synth);
+int spk_synth_is_alive_nop(struct spk_synth *synth);
+int spk_synth_is_alive_restart(struct spk_synth *synth);
+void synth_printf(const char *buf, ...);
+int synth_request_region(u_long, u_long);
+int synth_release_region(u_long, u_long);
+int synth_add(struct spk_synth *in_synth);
+void synth_remove(struct spk_synth *in_synth);
 
 extern struct speakup_info_t speakup_info;
 
diff --git a/drivers/staging/speakup/spk_types.h b/drivers/staging/speakup/spk_types.h
index 8c565c9..e8ff5d7 100644
--- a/drivers/staging/speakup/spk_types.h
+++ b/drivers/staging/speakup/spk_types.h
@@ -16,6 +16,7 @@
 #include <linux/spinlock.h>
 #include <linux/mutex.h>
 #include <linux/io.h>		/* for inb_p, outb_p, inb, outb, etc... */
+#include <linux/device.h>
 
 enum var_type_t {
 	VAR_NUM = 0,
@@ -167,7 +168,8 @@ struct spk_synth {
 	int *default_vol;
 	int (*probe)(struct spk_synth *synth);
 	void (*release)(void);
-	const char *(*synth_immediate)(struct spk_synth *synth, const char *buff);
+	const char *(*synth_immediate)(struct spk_synth *synth,
+					const char *buff);
 	void (*catch_up)(struct spk_synth *synth);
 	void (*flush)(struct spk_synth *synth);
 	int (*is_alive)(struct spk_synth *synth);
@@ -179,6 +181,16 @@ struct spk_synth {
 	struct attribute_group attributes;
 };
 
+/**
+ * module_spk_synth() - Helper macro for registering a speakup driver
+ * @__spk_synth: spk_synth struct
+ * Helper macro for speakup drivers which do not do anything special in module
+ * init/exit. This eliminates a lot of boilerplate. Each module may only
+ * use this macro once, and calling it replaces module_init() and module_exit()
+ */
+#define module_spk_synth(__spk_synth) \
+	module_driver(__spk_synth, synth_add, synth_remove)
+
 struct speakup_info_t {
 	spinlock_t spinlock;
 	int port_tts;
diff --git a/drivers/staging/ste_rmi4/synaptics_i2c_rmi4.c b/drivers/staging/ste_rmi4/synaptics_i2c_rmi4.c
index f92ae1d..0f524bb 100644
--- a/drivers/staging/ste_rmi4/synaptics_i2c_rmi4.c
+++ b/drivers/staging/ste_rmi4/synaptics_i2c_rmi4.c
@@ -209,7 +209,7 @@ static int synaptics_rmi4_set_page(struct synaptics_rmi4_data *pdata,
 		txbuf[1]	= page;
 		retval	= i2c_master_send(i2c, txbuf, PAGE_LEN);
 		if (retval != PAGE_LEN)
-			dev_err(&i2c->dev, "%s:failed:%d\n", __func__, retval);
+			dev_err(&i2c->dev, "failed:%d\n", retval);
 		else
 			pdata->current_page = page;
 	} else
@@ -283,7 +283,7 @@ static int synaptics_rmi4_i2c_byte_write(struct synaptics_rmi4_data *pdata,
 	retval		= i2c_master_send(pdata->i2c_client, txbuf, 2);
 	/* Add in retry on writes only in certain error return values */
 	if (retval != 2) {
-		dev_err(&i2c->dev, "%s:failed:%d\n", __func__, retval);
+		dev_err(&i2c->dev, "failed:%d\n", retval);
 		retval = -EIO;
 	} else
 		retval = 1;
@@ -830,8 +830,8 @@ static int synaptics_rmi4_i2c_query_device(struct synaptics_rmi4_data *pdata)
 
 	/* Check if this is a Synaptics device - report if not. */
 	if (pdata->rmi4_mod_info.manufacturer_id != 1)
-		dev_err(&client->dev, "%s: non-Synaptics mfg id:%d\n",
-			__func__, pdata->rmi4_mod_info.manufacturer_id);
+		dev_err(&client->dev, "non-Synaptics mfg id:%d\n",
+			pdata->rmi4_mod_info.manufacturer_id);
 
 	list_for_each_entry(rfi, &pdata->rmi4_mod_info.support_fn_list, link)
 		data_sources += rfi->num_of_data_sources;
@@ -990,8 +990,8 @@ static int synaptics_rmi4_probe
 					platformdata->irq_type,
 					DRIVER_NAME, rmi4_data);
 	if (retval) {
-		dev_err(&client->dev, "%s:Unable to get attn irq %d\n",
-				__func__, client->irq);
+		dev_err(&client->dev, "Unable to get attn irq %d\n",
+			client->irq);
 		goto err_query_dev;
 	}
 
@@ -1112,12 +1112,11 @@ static int synaptics_rmi4_resume(struct device *dev)
 	return 0;
 }
 
-static const struct dev_pm_ops synaptics_rmi4_dev_pm_ops = {
-	.suspend = synaptics_rmi4_suspend,
-	.resume  = synaptics_rmi4_resume,
-};
 #endif
 
+static SIMPLE_DEV_PM_OPS(synaptics_rmi4_dev_pm_ops, synaptics_rmi4_suspend,
+			 synaptics_rmi4_resume);
+
 static const struct i2c_device_id synaptics_rmi4_id_table[] = {
 	{ DRIVER_NAME, 0 },
 	{ },
@@ -1128,9 +1127,7 @@ static struct i2c_driver synaptics_rmi4_driver = {
 	.driver = {
 		.name	=	DRIVER_NAME,
 		.owner	=	THIS_MODULE,
-#ifdef CONFIG_PM
 		.pm	=	&synaptics_rmi4_dev_pm_ops,
-#endif
 	},
 	.probe		=	synaptics_rmi4_probe,
 	.remove		=	synaptics_rmi4_remove,
diff --git a/drivers/staging/unisys/common-spar/include/channels/iochannel.h b/drivers/staging/unisys/common-spar/include/channels/iochannel.h
index eb7efe4..3bd7579 100644
--- a/drivers/staging/unisys/common-spar/include/channels/iochannel.h
+++ b/drivers/staging/unisys/common-spar/include/channels/iochannel.h
@@ -337,7 +337,7 @@ struct uiscmdrsp_scsi {
     /* peripheral type of 3 - processor */
     /* specifies device capable, but not present */
 
-#define DEV_HISUPPORT 0x10;	/* HiSup = 1; shows support for report luns */
+#define DEV_HISUPPORT 0x10	/* HiSup = 1; shows support for report luns */
     /* must be returned for lun 0. */
 
 /* NOTE: Linux code assumes inquiry contains 36 bytes. Without checking length
diff --git a/drivers/staging/unisys/common-spar/include/vmcallinterface.h b/drivers/staging/unisys/common-spar/include/vmcallinterface.h
index 7833371..59a7459 100644
--- a/drivers/staging/unisys/common-spar/include/vmcallinterface.h
+++ b/drivers/staging/unisys/common-spar/include/vmcallinterface.h
@@ -79,18 +79,15 @@ enum vmcall_monitor_interface_method_tuple { /* VMCALL identification tuples  */
 #define ISSUE_IO_VMCALL(method, param, result) \
 	(result = unisys_vmcall(method, (param) & 0xFFFFFFFF,	\
 				(param) >> 32))
-#define ISSUE_IO_EXTENDED_VMCALL(method, param1, param2,	\
-				 param3, result)			\
-	(result = unisys_extended_vmcall(method, param1,	\
-					 param2, param3))
+#define ISSUE_IO_EXTENDED_VMCALL(method, param1, param2, param3) \
+	unisys_extended_vmcall(method, param1, param2, param3)
 
     /* The following uses VMCALL_POST_CODE_LOGEVENT interface but is currently
      * not used much */
 #define ISSUE_IO_VMCALL_POSTCODE_SEVERITY(postcode, severity)		\
 do {									\
-	u32 _tempresult = VMCALL_SUCCESS;				\
 	ISSUE_IO_EXTENDED_VMCALL(VMCALL_POST_CODE_LOGEVENT, severity,	\
-				 MDS_APPOS, postcode, _tempresult);	\
+				 MDS_APPOS, postcode);			\
 } while (0)
 #endif
 
diff --git a/drivers/staging/unisys/include/procobjecttree.h b/drivers/staging/unisys/include/procobjecttree.h
index 1174056..809c679 100644
--- a/drivers/staging/unisys/include/procobjecttree.h
+++ b/drivers/staging/unisys/include/procobjecttree.h
@@ -26,7 +26,6 @@
 #ifndef __PROCOBJECTTREE_H__
 #define __PROCOBJECTTREE_H__
 
-#include "uniklog.h"
 #include "timskmod.h"
 
 /* These are opaque structures to users.
diff --git a/drivers/staging/unisys/include/timskmod.h b/drivers/staging/unisys/include/timskmod.h
index 4019a0d..5a933d7 100644
--- a/drivers/staging/unisys/include/timskmod.h
+++ b/drivers/staging/unisys/include/timskmod.h
@@ -68,15 +68,6 @@
 #define HOSTADDRESS unsigned long long
 #endif
 
-/** Try to evaulate the provided expression, and do a RETINT(x) iff
- *  the expression evaluates to < 0.
- */
-#define ASSERT(cond)                                           \
-	do { if (!(cond))                                      \
-			HUHDRV("ASSERT failed - %s",	       \
-			       __stringify(cond));	       \
-	} while (0)
-
 #define sizeofmember(TYPE, MEMBER) (sizeof(((TYPE *)0)->MEMBER))
 /** "Covered quotient" function */
 #define COVQ(v, d)  (((v) + (d) - 1) / (d))
@@ -87,14 +78,8 @@
 		(void *)(p2) = SWAPPOINTERS_TEMP;	\
 	} while (0)
 
-#define PRINTKDRV(fmt, args...) LOGINF(fmt, ## args)
-#define TBDDRV(fmt, args...)    LOGERR(fmt, ## args)
-#define HUHDRV(fmt, args...)    LOGERR(fmt, ## args)
-#define ERRDRV(fmt, args...)    LOGERR(fmt, ## args)
 #define WARNDRV(fmt, args...)   LOGWRN(fmt, ## args)
 #define SECUREDRV(fmt, args...) LOGWRN(fmt, ## args)
-#define INFODRV(fmt, args...)   LOGINF(fmt, ## args)
-#define DEBUGDRV(fmt, args...)  DBGINF(fmt, ## args)
 
 #define PRINTKDEV(devname, fmt, args...)  LOGINFDEV(devname, fmt, ## args)
 #define TBDDEV(devname, fmt, args...)     LOGERRDEV(devname, fmt, ## args)
@@ -105,7 +90,6 @@
 #define SECUREDEV(devname, fmt, args...)  LOGWRNDEV(devname, fmt, ## args)
 #define INFODEV(devname, fmt, args...)    LOGINFDEV(devname, fmt, ## args)
 #define INFODEVX(devno, fmt, args...)     LOGINFDEVX(devno, fmt, ## args)
-#define DEBUGDEV(devname, fmt, args...)   DBGINFDEV(devname, fmt, ## args)
 
 /** Verifies the consistency of your PRIVATEDEVICEDATA structure using
  *  conventional "signature" fields:
diff --git a/drivers/staging/unisys/include/uisqueue.h b/drivers/staging/unisys/include/uisqueue.h
index 25b6181..08ba16e 100644
--- a/drivers/staging/unisys/include/uisqueue.h
+++ b/drivers/staging/unisys/include/uisqueue.h
@@ -25,7 +25,6 @@
 
 #include "linux/version.h"
 #include "iochannel.h"
-#include "uniklog.h"
 #include <linux/atomic.h>
 #include <linux/semaphore.h>
 #include <linux/uuid.h>
diff --git a/drivers/staging/unisys/include/uisthread.h b/drivers/staging/unisys/include/uisthread.h
index aa86ade7..52c3eb4 100644
--- a/drivers/staging/unisys/include/uisthread.h
+++ b/drivers/staging/unisys/include/uisthread.h
@@ -27,7 +27,6 @@
 struct uisthread_info {
 	struct task_struct *task;
 	int id;
-	int should_stop;
 	struct completion has_stopped;
 };
 
diff --git a/drivers/staging/unisys/include/uisutils.h b/drivers/staging/unisys/include/uisutils.h
index 7414220..c7d0ba8 100644
--- a/drivers/staging/unisys/include/uisutils.h
+++ b/drivers/staging/unisys/include/uisutils.h
@@ -65,17 +65,7 @@ struct req_handler_info {
 	struct list_head list_link;	/* links into ReqHandlerInfo_list */
 };
 
-struct req_handler_info *req_handler_add(uuid_le switch_uuid,
-				const char *switch_type_name,
-				int (*controlfunc)(struct io_msgs *),
-				unsigned long min_channel_bytes,
-				int (*svr_channel_ok)(unsigned long
-							 channel_bytes),
-				int (*svr_channel_init)(void *x,
-						unsigned char *client_str,
-						u32 client_str_len, u64 bytes));
 struct req_handler_info *req_handler_find(uuid_le switch_uuid);
-int req_handler_del(uuid_le switch_uuid);
 
 #define uislib_ioremap_cache(addr, size) \
 	dbg_ioremap_cache(addr, size, __FILE__, __LINE__)
@@ -115,19 +105,7 @@ int uisutil_add_proc_line_ex(int *total, char **buffer, int *buffer_remaining,
 
 int uisctrl_register_req_handler(int type, void *fptr,
 			struct ultra_vbus_deviceinfo *chipset_driver_info);
-int uisctrl_register_req_handler_ex(uuid_le switch_guid,
-			const char *switch_type_name,
-			int (*fptr)(struct io_msgs *),
-			unsigned long min_channel_bytes,
-			int (*svr_channel_ok)(unsigned long
-					      channel_bytes),
-			int (*svr_channel_init)(void *x,
-						unsigned char *client_str,
-						u32 client_str_len,
-						u64 bytes),
-			struct ultra_vbus_deviceinfo *chipset_driver_info);
 
-int uisctrl_unregister_req_handler_ex(uuid_le switch_uuid);
 unsigned char *util_map_virt(struct phys_info *sg);
 void util_unmap_virt(struct phys_info *sg);
 unsigned char *util_map_virt_atomic(struct phys_info *sg);
@@ -206,21 +184,10 @@ wait_for_valid_guid(uuid_le __iomem *guid)
 			      (void __iomem *)guid, sizeof(uuid_le));
 		if (uuid_le_cmp(tmpguid, NULL_UUID_LE) != 0)
 			break;
-		LOGERR("Waiting for non-0 GUID (why???)...\n");
 		UIS_THREAD_WAIT_SEC(5);
 	}
-	LOGERR("OK... GUID is non-0 now\n");
 }
 
-/* CopyFragsInfoFromSkb returns the number of entries added to frags array
- * Returns -1 on failure.
- */
-unsigned int uisutil_copy_fragsinfo_from_skb(unsigned char *calling_ctx,
-					     void *skb_in,
-					     unsigned int firstfraglen,
-					     unsigned int frags_max,
-					     struct phys_info frags[]);
-
 static inline unsigned int
 issue_vmcall_io_controlvm_addr(u64 *control_addr, u32 *control_bytes)
 {
diff --git a/drivers/staging/unisys/include/uniklog.h b/drivers/staging/unisys/include/uniklog.h
deleted file mode 100644
index ecd1bdb..0000000
--- a/drivers/staging/unisys/include/uniklog.h
+++ /dev/null
@@ -1,191 +0,0 @@
-/* uniklog.h
- *
- * Copyright (C) 2010 - 2013 UNISYS CORPORATION
- * All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or (at
- * your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
- * NON INFRINGEMENT.  See the GNU General Public License for more
- * details.
- */
-
-/* This module contains macros to aid developers in logging messages.
- *
- * This module is affected by the DEBUG compiletime option.
- *
- */
-#ifndef __UNIKLOG_H__
-#define __UNIKLOG_H__
-
-#include <linux/printk.h>
-
-/*
- * # DBGINF
- *
- * \brief Log debug informational message - log a LOG_INFO message only
- *        if DEBUG compiletime option enabled
- *
- * \param devname the device name of the device reporting this message, or
- *                NULL if this message is NOT device-related.
- * \param fmt printf()-style format string containing the message to log.
- * \param args Optional arguments to be formatted and inserted into the
- *             format string.
- * \return nothing
- *
- * Log a message at the LOG_INFO level, but only if DEBUG is enabled.  If
- * DEBUG is disabled, this expands to a no-op.
- */
-
-/*
- * # DBGVER
- *
- * \brief Log debug verbose message - log a LOG_DEBUG message only if
- *        DEBUG compiletime option enabled
- *
- * \param devname the device name of the device reporting this message, or
- *                NULL if this message is NOT device-related.
- * \param fmt printf()-style format string containing the message to log.
- * \param args Optional arguments to be formatted and inserted into the
- *             format string.
- * \return nothing
- *
- * Log a message at the LOG_DEBUG level, but only if DEBUG is enabled.  If
- * DEBUG is disabled, this expands to a no-op.  Note also that LOG_DEBUG
- * messages can be enabled/disabled at runtime as well.
- */
-#define DBGINFDEV(devname, fmt, args...)        do { } while (0)
-#define DBGVERDEV(devname, fmt, args...)        do { } while (0)
-#define DBGINF(fmt, args...)                    do { } while (0)
-#define DBGVER(fmt, args...)                    do { } while (0)
-
-/*
- * # LOGINF
- *
- * \brief Log informational message - logs a message at the LOG_INFO level
- *
- * \param devname the device name of the device reporting this message, or
- *                NULL if this message is NOT device-related.
- * \param fmt printf()-style format string containing the message to log.
- * \param args Optional arguments to be formatted and inserted into the
- *             format string.
- * \return nothing
- *
- * Logs the specified message at the LOG_INFO level.
- */
-
-#define LOGINF(fmt, args...) pr_info(fmt, ## args)
-#define LOGINFDEV(devname, fmt, args...) \
-	pr_info("%s " fmt, devname, ## args)
-#define LOGINFDEVX(devno, fmt, args...) \
-	pr_info("dev%d " fmt, devno, ## args)
-#define LOGINFNAME(vnic, fmt, args...)				\
-	do {								\
-		if (vnic != NULL) {					\
-			pr_info("%s " fmt, vnic->name, ## args);	\
-		} else {						\
-			pr_info(fmt, ## args);				\
-		}							\
-	} while (0)
-
-/*
- * # LOGVER
- *
- * \brief Log verbose message - logs a message at the LOG_DEBUG level,
- *        which can be disabled at runtime
- *
- * \param devname the device name of the device reporting this message, or
- *                NULL if this message is NOT device-related.
- * \param fmt printf()-style format string containing the message to log.
- * \param args Optional arguments to be formatted and inserted into the format
- * \param string.
- * \return nothing
- *
- * Logs the specified message at the LOG_DEBUG level.  Note also that
- * LOG_DEBUG messages can be enabled/disabled at runtime as well.
- */
-#define LOGVER(fmt, args...) pr_debug(fmt, ## args)
-#define LOGVERDEV(devname, fmt, args...) \
-	pr_debug("%s " fmt, devname, ## args)
-#define LOGVERNAME(vnic, fmt, args...)					\
-	do {								\
-		if (vnic != NULL) {					\
-			pr_debug("%s " fmt, vnic->name, ## args);	\
-		} else {						\
-			pr_debug(fmt, ## args);				\
-		}							\
-	} while (0)
-
-/*
- * # LOGERR
- *
- * \brief Log error message - logs a message at the LOG_ERR level,
- *        including source line number information
- *
- * \param devname the device name of the device reporting this message, or
- *                NULL if this message is NOT device-related.
- * \param fmt printf()-style format string containing the message to log.
- * \param args Optional arguments to be formatted and inserted into the format
- * \param string.
- * \return nothing
- *
- * Logs the specified error message at the LOG_ERR level.  It will also
- * include the file, line number, and function name of where the error
- * originated in the log message.
- */
-#define LOGERR(fmt, args...) pr_err(fmt, ## args)
-#define LOGERRDEV(devname, fmt, args...) \
-	pr_err("%s " fmt, devname, ## args)
-#define LOGERRDEVX(devno, fmt, args...) \
-	pr_err("dev%d " fmt, devno, ## args)
-#define LOGERRNAME(vnic, fmt, args...)				\
-	do {								\
-		if (vnic != NULL) {					\
-			pr_err("%s " fmt, vnic->name, ## args);	\
-		} else {						\
-			pr_err(fmt, ## args);				\
-		}							\
-	} while (0)
-#define LOGORDUMPERR(seqfile, fmt, args...) do {		\
-		if (seqfile) {					\
-			seq_printf(seqfile, fmt, ## args);	\
-		} else {					\
-			LOGERR(fmt, ## args);			\
-		}						\
-	} while (0)
-
-/*
- * # LOGWRN
- *
- * \brief Log warning message - Logs a message at the LOG_WARNING level,
- *        including source line number information
- *
- * \param devname the device name of the device reporting this message, or
- *                NULL if this message is NOT device-related.
- * \param fmt printf()-style format string containing the message to log.
- * \param args Optional arguments to be formatted and inserted into the format
- * \param string.
- * \return nothing
- *
- * Logs the specified error message at the LOG_WARNING level.  It will also
- * include the file, line number, and function name of where the error
- * originated in the log message.
- */
-#define LOGWRN(fmt, args...) pr_warn(fmt, ## args)
-#define LOGWRNDEV(devname, fmt, args...) \
-	pr_warn("%s " fmt, devname, ## args)
-#define LOGWRNNAME(vnic, fmt, args...) \
-	do {								\
-		if (vnic != NULL) {					\
-			pr_warn("%s " fmt, vnic->name, ## args);	\
-		} else {						\
-			pr_warn(fmt, ## args);				\
-		}							\
-	} while (0)
-
-#endif /* __UNIKLOG_H__ */
diff --git a/drivers/staging/unisys/uislib/Kconfig b/drivers/staging/unisys/uislib/Kconfig
index a712eb8..c39a0a2 100644
--- a/drivers/staging/unisys/uislib/Kconfig
+++ b/drivers/staging/unisys/uislib/Kconfig
@@ -4,7 +4,7 @@
 
 config UNISYS_UISLIB
 	tristate "Unisys uislib driver"
-	depends on UNISYSSPAR && UNISYS_VISORCHIPSET && HAS_IOMEM
+	select UNISYS_VISORCHIPSET
 	---help---
 	If you say Y here, you will enable the Unisys uislib driver.
 
diff --git a/drivers/staging/unisys/uislib/Makefile b/drivers/staging/unisys/uislib/Makefile
index 08e620d..860f494 100644
--- a/drivers/staging/unisys/uislib/Makefile
+++ b/drivers/staging/unisys/uislib/Makefile
@@ -7,8 +7,6 @@ obj-$(CONFIG_UNISYS_UISLIB)	+= visoruislib.o
 visoruislib-y := uislib.o uisqueue.o  uisthread.o  uisutils.o
 
 ccflags-y += -Idrivers/staging/unisys/include
-ccflags-y += -Idrivers/staging/unisys/channels
 ccflags-y += -Idrivers/staging/unisys/visorchipset
-ccflags-y += -Idrivers/staging/unisys/sparstopdriver
 ccflags-y += -Idrivers/staging/unisys/common-spar/include
 ccflags-y += -Idrivers/staging/unisys/common-spar/include/channels
diff --git a/drivers/staging/unisys/uislib/uislib.c b/drivers/staging/unisys/uislib/uislib.c
index a9eedde..f93d0bb 100644
--- a/drivers/staging/unisys/uislib/uislib.c
+++ b/drivers/staging/unisys/uislib/uislib.c
@@ -29,7 +29,6 @@
 #include <linux/uuid.h>
 
 #include <linux/version.h>
-#include "uniklog.h"
 #include "diagnostics/appos_subsystems.h"
 #include "uisutils.h"
 #include "vbuschannel.h"
@@ -132,14 +131,10 @@ static __iomem void *init_vbus_channel(u64 ch_addr, u32 ch_bytes)
 {
 	void __iomem *ch = uislib_ioremap_cache(ch_addr, ch_bytes);
 
-	if (!ch) {
-		LOGERR("CONTROLVM_BUS_CREATE error: ioremap_cache of channelAddr:%Lx for channelBytes:%llu failed",
-		       (unsigned long long)ch_addr,
-		       (unsigned long long)ch_bytes);
+	if (!ch)
 		return NULL;
-	}
+
 	if (!SPAR_VBUS_CHANNEL_OK_CLIENT(ch)) {
-		ERRDRV("%s channel cannot be used", __func__);
 		uislib_iounmap(ch);
 		return NULL;
 	}
@@ -154,8 +149,6 @@ create_bus(struct controlvm_message *msg, char *buf)
 	size_t size;
 
 	if (max_bus_count == bus_list_count) {
-		LOGERR("CONTROLVM_BUS_CREATE Failed: max buses:%d already created\n",
-		       max_bus_count);
 		POSTCODE_LINUX_3(BUS_CREATE_FAILURE_PC, max_bus_count,
 				 POSTCODE_SEVERITY_ERR);
 		return CONTROLVM_RESP_ERROR_MAX_BUSES;
@@ -172,7 +165,6 @@ create_bus(struct controlvm_message *msg, char *buf)
 	    (dev_count * sizeof(struct device_info *));
 	bus = kzalloc(size, GFP_ATOMIC);
 	if (!bus) {
-		LOGERR("CONTROLVM_BUS_CREATE Failed: kmalloc for bus failed.\n");
 		POSTCODE_LINUX_3(BUS_CREATE_FAILURE_PC, bus_no,
 				 POSTCODE_SEVERITY_ERR);
 		return CONTROLVM_RESP_ERROR_KMALLOC_FAILED;
@@ -209,8 +201,6 @@ create_bus(struct controlvm_message *msg, char *buf)
 		/* found a bus already in the list with same bus_no -
 		 * reject add
 		 */
-		LOGERR("CONTROLVM_BUS_CREATE Failed: bus %d already exists.\n",
-		       bus->bus_no);
 		POSTCODE_LINUX_3(BUS_CREATE_FAILURE_PC, bus->bus_no,
 				 POSTCODE_SEVERITY_ERR);
 		kfree(bus);
@@ -234,14 +224,12 @@ create_bus(struct controlvm_message *msg, char *buf)
 		cmd.add_vbus.bus_uuid = msg->cmd.create_bus.bus_data_type_uuid;
 		cmd.add_vbus.instance_uuid = msg->cmd.create_bus.bus_inst_uuid;
 		if (!virt_control_chan_func) {
-			LOGERR("CONTROLVM_BUS_CREATE Failed: virtpci callback not registered.");
 			POSTCODE_LINUX_3(BUS_CREATE_FAILURE_PC, bus->bus_no,
 					 POSTCODE_SEVERITY_ERR);
 			kfree(bus);
 			return CONTROLVM_RESP_ERROR_VIRTPCI_DRIVER_FAILURE;
 		}
 		if (!virt_control_chan_func(&cmd)) {
-			LOGERR("CONTROLVM_BUS_CREATE Failed: virtpci GUEST_ADD_VBUS returned error.");
 			POSTCODE_LINUX_3(BUS_CREATE_FAILURE_PC, bus->bus_no,
 					 POSTCODE_SEVERITY_ERR);
 			kfree(bus);
@@ -287,17 +275,13 @@ destroy_bus(struct controlvm_message *msg, char *buf)
 	}
 
 	if (!bus) {
-		LOGERR("CONTROLVM_BUS_DESTROY Failed: failed to find bus %d.\n",
-		       bus_no);
 		read_unlock(&bus_list_lock);
 		return CONTROLVM_RESP_ERROR_ALREADY_DONE;
 	}
 
 	/* verify that this bus has no devices. */
 	for (i = 0; i < bus->device_count; i++) {
-		if (bus->device[i] != NULL) {
-			LOGERR("CONTROLVM_BUS_DESTROY Failed: device %i attached to bus %d.",
-			       i, bus_no);
+		if (bus->device[i]) {
 			read_unlock(&bus_list_lock);
 			return CONTROLVM_RESP_ERROR_BUS_DEVICE_ATTACHED;
 		}
@@ -311,14 +295,11 @@ destroy_bus(struct controlvm_message *msg, char *buf)
 	   with this bus. */
 	cmd.msgtype = GUEST_DEL_VBUS;
 	cmd.del_vbus.bus_no = bus_no;
-	if (!virt_control_chan_func) {
-		LOGERR("CONTROLVM_BUS_DESTROY Failed: virtpci callback not registered.");
+	if (!virt_control_chan_func)
 		return CONTROLVM_RESP_ERROR_VIRTPCI_DRIVER_FAILURE;
-	}
-	if (!virt_control_chan_func(&cmd)) {
-		LOGERR("CONTROLVM_BUS_DESTROY Failed: virtpci GUEST_DEL_VBUS returned error.");
+
+	if (!virt_control_chan_func(&cmd))
 		return CONTROLVM_RESP_ERROR_VIRTPCI_DRIVER_CALLBACK_ERROR;
-	}
 
 	/* finally, remove the bus from the list */
 remove:
@@ -357,7 +338,6 @@ static int create_device(struct controlvm_message *msg, char *buf)
 
 	dev = kzalloc(sizeof(*dev), GFP_ATOMIC);
 	if (!dev) {
-		LOGERR("CONTROLVM_DEVICE_CREATE Failed: kmalloc for dev failed.\n");
 		POSTCODE_LINUX_4(DEVICE_CREATE_FAILURE_PC, dev_no, bus_no,
 				 POSTCODE_SEVERITY_ERR);
 		return CONTROLVM_RESP_ERROR_KMALLOC_FAILED;
@@ -381,9 +361,6 @@ static int create_device(struct controlvm_message *msg, char *buf)
 			 */
 			min_size = req_handler->min_channel_bytes;
 		if (min_size > msg->cmd.create_device.channel_bytes) {
-			LOGERR("CONTROLVM_DEVICE_CREATE Failed: channel size is too small, channel size:0x%lx, required size:0x%lx",
-			       (ulong)msg->cmd.create_device.channel_bytes,
-			       (ulong)min_size);
 			POSTCODE_LINUX_4(DEVICE_CREATE_FAILURE_PC, dev_no,
 					 bus_no, POSTCODE_SEVERITY_ERR);
 			result = CONTROLVM_RESP_ERROR_CHANNEL_SIZE_TOO_SMALL;
@@ -393,9 +370,6 @@ static int create_device(struct controlvm_message *msg, char *buf)
 		    uislib_ioremap_cache(dev->channel_addr,
 					 msg->cmd.create_device.channel_bytes);
 		if (!dev->chanptr) {
-			LOGERR("CONTROLVM_DEVICE_CREATE Failed: ioremap_cache of channelAddr:%Lx for channelBytes:%llu failed",
-			       dev->channel_addr,
-			       msg->cmd.create_device.channel_bytes);
 			result = CONTROLVM_RESP_ERROR_IOREMAP_FAILED;
 			POSTCODE_LINUX_4(DEVICE_CREATE_FAILURE_PC, dev_no,
 					 bus_no, POSTCODE_SEVERITY_ERR);
@@ -411,8 +385,6 @@ static int create_device(struct controlvm_message *msg, char *buf)
 			continue;
 		/* make sure the device number is valid */
 		if (dev_no >= bus->device_count) {
-			LOGERR("CONTROLVM_DEVICE_CREATE Failed: device (%d) >= deviceCount (%d).",
-			       dev_no, bus->device_count);
 			result = CONTROLVM_RESP_ERROR_MAX_DEVICES;
 			POSTCODE_LINUX_4(DEVICE_CREATE_FAILURE_PC, dev_no,
 					 bus_no, POSTCODE_SEVERITY_ERR);
@@ -421,8 +393,6 @@ static int create_device(struct controlvm_message *msg, char *buf)
 		}
 		/* make sure this device is not already set */
 		if (bus->device[dev_no]) {
-			LOGERR("CONTROLVM_DEVICE_CREATE Failed: device %d is already exists.",
-			       dev_no);
 			POSTCODE_LINUX_4(DEVICE_CREATE_FAILURE_PC,
 					 dev_no, bus_no,
 					 POSTCODE_SEVERITY_ERR);
@@ -445,8 +415,6 @@ static int create_device(struct controlvm_message *msg, char *buf)
 			wait_for_valid_guid(&((struct channel_header __iomem *)
 					    (dev->chanptr))->chtype);
 			if (!SPAR_VHBA_CHANNEL_OK_CLIENT(dev->chanptr)) {
-				LOGERR("CONTROLVM_DEVICE_CREATE Failed:[CLIENT]VHBA dev %d chan invalid.",
-				       dev_no);
 				POSTCODE_LINUX_4(DEVICE_CREATE_FAILURE_PC,
 						 dev_no, bus_no,
 						 POSTCODE_SEVERITY_ERR);
@@ -464,8 +432,6 @@ static int create_device(struct controlvm_message *msg, char *buf)
 			wait_for_valid_guid(&((struct channel_header __iomem *)
 					    (dev->chanptr))->chtype);
 			if (!SPAR_VNIC_CHANNEL_OK_CLIENT(dev->chanptr)) {
-				LOGERR("CONTROLVM_DEVICE_CREATE Failed: VNIC[CLIENT] dev %d chan invalid.",
-				       dev_no);
 				POSTCODE_LINUX_4(DEVICE_CREATE_FAILURE_PC,
 						 dev_no, bus_no,
 						 POSTCODE_SEVERITY_ERR);
@@ -479,7 +445,6 @@ static int create_device(struct controlvm_message *msg, char *buf)
 			cmd.add_vnic.instance_uuid = dev->instance_uuid;
 			cmd.add_vhba.intr = dev->intr;
 		} else {
-			LOGERR("CONTROLVM_DEVICE_CREATE Failed: unknown channelTypeGuid.\n");
 			POSTCODE_LINUX_4(DEVICE_CREATE_FAILURE_PC, dev_no,
 					 bus_no, POSTCODE_SEVERITY_ERR);
 			result = CONTROLVM_RESP_ERROR_CHANNEL_TYPE_UNKNOWN;
@@ -487,7 +452,6 @@ static int create_device(struct controlvm_message *msg, char *buf)
 		}
 
 		if (!virt_control_chan_func) {
-			LOGERR("CONTROLVM_DEVICE_CREATE Failed: virtpci callback not registered.");
 			POSTCODE_LINUX_4(DEVICE_CREATE_FAILURE_PC, dev_no,
 					 bus_no, POSTCODE_SEVERITY_ERR);
 			result = CONTROLVM_RESP_ERROR_VIRTPCI_DRIVER_FAILURE;
@@ -495,7 +459,6 @@ static int create_device(struct controlvm_message *msg, char *buf)
 		}
 
 		if (!virt_control_chan_func(&cmd)) {
-			LOGERR("CONTROLVM_DEVICE_CREATE Failed: virtpci GUEST_ADD_[VHBA||VNIC] returned error.");
 			POSTCODE_LINUX_4(DEVICE_CREATE_FAILURE_PC, dev_no,
 					 bus_no, POSTCODE_SEVERITY_ERR);
 			result =
@@ -510,8 +473,6 @@ static int create_device(struct controlvm_message *msg, char *buf)
 	}
 	read_unlock(&bus_list_lock);
 
-	LOGERR("CONTROLVM_DEVICE_CREATE Failed: failed to find bus %d.",
-	       bus_no);
 	POSTCODE_LINUX_4(DEVICE_CREATE_FAILURE_PC, dev_no, bus_no,
 			 POSTCODE_SEVERITY_ERR);
 	result = CONTROLVM_RESP_ERROR_BUS_INVALID;
@@ -542,15 +503,11 @@ static int pause_device(struct controlvm_message *msg)
 		if (bus->bus_no == bus_no) {
 			/* make sure the device number is valid */
 			if (dev_no >= bus->device_count) {
-				LOGERR("CONTROLVM_DEVICE_CHANGESTATE:pause Failed: device(%d) >= deviceCount(%d).",
-				       dev_no, bus->device_count);
 				retval = CONTROLVM_RESP_ERROR_DEVICE_INVALID;
 			} else {
 				/* make sure this device exists */
 				dev = bus->device[dev_no];
 				if (!dev) {
-					LOGERR("CONTROLVM_DEVICE_CHANGESTATE:pause Failed: device %d does not exist.",
-					       dev_no);
 					retval =
 					  CONTROLVM_RESP_ERROR_ALREADY_DONE;
 				}
@@ -558,11 +515,9 @@ static int pause_device(struct controlvm_message *msg)
 			break;
 		}
 	}
-	if (!bus) {
-		LOGERR("CONTROLVM_DEVICE_CHANGESTATE:pause Failed: bus %d does not exist",
-		       bus_no);
+	if (!bus)
 		retval = CONTROLVM_RESP_ERROR_BUS_INVALID;
-	}
+
 	read_unlock(&bus_list_lock);
 	if (retval == CONTROLVM_RESP_SUCCESS) {
 		/* the msg is bound for virtpci; send
@@ -577,15 +532,11 @@ static int pause_device(struct controlvm_message *msg)
 			cmd.msgtype = GUEST_PAUSE_VNIC;
 			cmd.pause_vnic.chanptr = dev->chanptr;
 		} else {
-			LOGERR("CONTROLVM_DEVICE_CHANGESTATE:pause Failed: unknown channelTypeGuid.\n");
 			return CONTROLVM_RESP_ERROR_CHANNEL_TYPE_UNKNOWN;
 		}
-		if (!virt_control_chan_func) {
-			LOGERR("CONTROLVM_DEVICE_CHANGESTATE Failed: virtpci callback not registered.");
+		if (!virt_control_chan_func)
 			return CONTROLVM_RESP_ERROR_VIRTPCI_DRIVER_FAILURE;
-		}
 		if (!virt_control_chan_func(&cmd)) {
-			LOGERR("CONTROLVM_DEVICE_CHANGESTATE:pause Failed: virtpci GUEST_PAUSE_[VHBA||VNIC] returned error.");
 			return
 			  CONTROLVM_RESP_ERROR_VIRTPCI_DRIVER_CALLBACK_ERROR;
 		}
@@ -609,15 +560,11 @@ static int resume_device(struct controlvm_message *msg)
 		if (bus->bus_no == bus_no) {
 			/* make sure the device number is valid */
 			if (dev_no >= bus->device_count) {
-				LOGERR("CONTROLVM_DEVICE_CHANGESTATE:resume Failed: device(%d) >= deviceCount(%d).",
-				       dev_no, bus->device_count);
 				retval = CONTROLVM_RESP_ERROR_DEVICE_INVALID;
 			} else {
 				/* make sure this device exists */
 				dev = bus->device[dev_no];
 				if (!dev) {
-					LOGERR("CONTROLVM_DEVICE_CHANGESTATE:resume Failed: device %d does not exist.",
-					       dev_no);
 					retval =
 					  CONTROLVM_RESP_ERROR_ALREADY_DONE;
 				}
@@ -626,11 +573,9 @@ static int resume_device(struct controlvm_message *msg)
 		}
 	}
 
-	if (!bus) {
-		LOGERR("CONTROLVM_DEVICE_CHANGESTATE:resume Failed: bus %d does not exist",
-		       bus_no);
+	if (!bus)
 		retval = CONTROLVM_RESP_ERROR_BUS_INVALID;
-	}
+
 	read_unlock(&bus_list_lock);
 	/* the msg is bound for virtpci; send
 	 * guest_msgs struct to callback
@@ -645,15 +590,11 @@ static int resume_device(struct controlvm_message *msg)
 			cmd.msgtype = GUEST_RESUME_VNIC;
 			cmd.resume_vnic.chanptr = dev->chanptr;
 		} else {
-			LOGERR("CONTROLVM_DEVICE_CHANGESTATE:resume Failed: unknown channelTypeGuid.\n");
 			return CONTROLVM_RESP_ERROR_CHANNEL_TYPE_UNKNOWN;
 		}
-		if (!virt_control_chan_func) {
-			LOGERR("CONTROLVM_DEVICE_CHANGESTATE Failed: virtpci callback not registered.");
+		if (!virt_control_chan_func)
 			return CONTROLVM_RESP_ERROR_VIRTPCI_DRIVER_FAILURE;
-		}
 		if (!virt_control_chan_func(&cmd)) {
-			LOGERR("CONTROLVM_DEVICE_CHANGESTATE:resume Failed: virtpci GUEST_RESUME_[VHBA||VNIC] returned error.");
 			return
 			  CONTROLVM_RESP_ERROR_VIRTPCI_DRIVER_CALLBACK_ERROR;
 		}
@@ -673,21 +614,15 @@ static int destroy_device(struct controlvm_message *msg, char *buf)
 	dev_no = msg->cmd.destroy_device.bus_no;
 
 	read_lock(&bus_list_lock);
-	LOGINF("destroy_device called for bus_no=%u, dev_no=%u", bus_no,
-	       dev_no);
 	for (bus = bus_list; bus; bus = bus->next) {
 		if (bus->bus_no == bus_no) {
 			/* make sure the device number is valid */
 			if (dev_no >= bus->device_count) {
-				LOGERR("CONTROLVM_DEVICE_DESTROY Failed: device(%d) >= device_count(%d).",
-				       dev_no, bus->device_count);
 				retval = CONTROLVM_RESP_ERROR_DEVICE_INVALID;
 			} else {
 				/* make sure this device exists */
 				dev = bus->device[dev_no];
 				if (!dev) {
-					LOGERR("CONTROLVM_DEVICE_DESTROY Failed: device %d does not exist.",
-					       dev_no);
 					retval =
 					     CONTROLVM_RESP_ERROR_ALREADY_DONE;
 				}
@@ -696,11 +631,8 @@ static int destroy_device(struct controlvm_message *msg, char *buf)
 		}
 	}
 
-	if (!bus) {
-		LOGERR("CONTROLVM_DEVICE_DESTROY Failed: bus %d does not exist",
-		       bus_no);
+	if (!bus)
 		retval = CONTROLVM_RESP_ERROR_BUS_INVALID;
-	}
 	read_unlock(&bus_list_lock);
 	if (retval == CONTROLVM_RESP_SUCCESS) {
 		/* the msg is bound for virtpci; send
@@ -715,17 +647,14 @@ static int destroy_device(struct controlvm_message *msg, char *buf)
 			cmd.msgtype = GUEST_DEL_VNIC;
 			cmd.del_vnic.chanptr = dev->chanptr;
 		} else {
-			LOGERR("CONTROLVM_DEVICE_DESTROY Failed: unknown channelTypeGuid.\n");
 			return
 			    CONTROLVM_RESP_ERROR_CHANNEL_TYPE_UNKNOWN;
 		}
 		if (!virt_control_chan_func) {
-			LOGERR("CONTROLVM_DEVICE_DESTROY Failed: virtpci callback not registered.");
 			return
 			    CONTROLVM_RESP_ERROR_VIRTPCI_DRIVER_FAILURE;
 		}
 		if (!virt_control_chan_func(&cmd)) {
-			LOGERR("CONTROLVM_DEVICE_DESTROY Failed: virtpci GUEST_DEL_[VHBA||VNIC] returned error.");
 			return
 			    CONTROLVM_RESP_ERROR_VIRTPCI_DRIVER_CALLBACK_ERROR;
 		}
@@ -734,15 +663,11 @@ static int destroy_device(struct controlvm_message *msg, char *buf)
  * on which accesses the channel and you will get a "unable to handle
  * kernel paging request"
  */
-		if (dev->polling) {
-			LOGINF("calling uislib_disable_channel_interrupts");
+		if (dev->polling)
 			uislib_disable_channel_interrupts(bus_no, dev_no);
-		}
 		/* unmap the channel memory for the device. */
-		if (!msg->hdr.flags.test_message) {
-			LOGINF("destroy_device, doing iounmap");
+		if (!msg->hdr.flags.test_message)
 			uislib_iounmap(dev->chanptr);
-		}
 		kfree(dev);
 		bus->device[dev_no] = NULL;
 	}
@@ -780,10 +705,8 @@ static int delete_bus_glue(u32 bus_no)
 
 	init_msg_header(&msg, CONTROLVM_BUS_DESTROY, 0, 0);
 	msg.cmd.destroy_bus.bus_no = bus_no;
-	if (destroy_bus(&msg, NULL) != CONTROLVM_RESP_SUCCESS) {
-		LOGERR("destroy_bus failed. bus_no=0x%x\n", bus_no);
+	if (destroy_bus(&msg, NULL) != CONTROLVM_RESP_SUCCESS)
 		return 0;
-	}
 	return 1;
 }
 
@@ -794,11 +717,8 @@ static int delete_device_glue(u32 bus_no, u32 dev_no)
 	init_msg_header(&msg, CONTROLVM_DEVICE_DESTROY, 0, 0);
 	msg.cmd.destroy_device.bus_no = bus_no;
 	msg.cmd.destroy_device.dev_no = dev_no;
-	if (destroy_device(&msg, NULL) != CONTROLVM_RESP_SUCCESS) {
-		LOGERR("destroy_device failed. bus_no=0x%x dev_no=0x%x\n",
-		       bus_no, dev_no);
+	if (destroy_device(&msg, NULL) != CONTROLVM_RESP_SUCCESS)
 		return 0;
-	}
 	return 1;
 }
 
@@ -808,7 +728,6 @@ uislib_client_inject_add_bus(u32 bus_no, uuid_le inst_uuid,
 {
 	struct controlvm_message msg;
 
-	LOGINF("enter busNo=0x%x\n", bus_no);
 	/* step 0: init the chipset */
 	POSTCODE_LINUX_3(CHIPSET_INIT_ENTRY_PC, bus_no, POSTCODE_SEVERITY_INFO);
 
@@ -824,11 +743,8 @@ uislib_client_inject_add_bus(u32 bus_no, uuid_le inst_uuid,
 		*/
 		msg.cmd.init_chipset.bus_count = 23;
 		msg.cmd.init_chipset.switch_count = 0;
-		if (init_chipset(&msg, NULL) != CONTROLVM_RESP_SUCCESS) {
-			LOGERR("init_chipset failed.\n");
+		if (init_chipset(&msg, NULL) != CONTROLVM_RESP_SUCCESS)
 			return 0;
-		}
-		LOGINF("chipset initialized\n");
 		POSTCODE_LINUX_3(CHIPSET_INIT_EXIT_PC, bus_no,
 				 POSTCODE_SEVERITY_INFO);
 	}
@@ -842,7 +758,6 @@ uislib_client_inject_add_bus(u32 bus_no, uuid_le inst_uuid,
 	msg.cmd.create_bus.channel_addr = channel_addr;
 	msg.cmd.create_bus.channel_bytes = n_channel_bytes;
 	if (create_bus(&msg, NULL) != CONTROLVM_RESP_SUCCESS) {
-		LOGERR("create_bus failed.\n");
 		POSTCODE_LINUX_3(BUS_CREATE_FAILURE_PC, bus_no,
 				 POSTCODE_SEVERITY_ERR);
 		return 0;
@@ -871,11 +786,8 @@ uislib_client_inject_pause_vhba(u32 bus_no, u32 dev_no)
 	msg.cmd.device_change_state.dev_no = dev_no;
 	msg.cmd.device_change_state.state = segment_state_standby;
 	rc = pause_device(&msg);
-	if (rc != CONTROLVM_RESP_SUCCESS) {
-		LOGERR("VHBA pause_device failed. busNo=0x%x devNo=0x%x\n",
-		       bus_no, dev_no);
+	if (rc != CONTROLVM_RESP_SUCCESS)
 		return rc;
-	}
 	return 0;
 }
 EXPORT_SYMBOL_GPL(uislib_client_inject_pause_vhba);
@@ -891,11 +803,8 @@ uislib_client_inject_resume_vhba(u32 bus_no, u32 dev_no)
 	msg.cmd.device_change_state.dev_no = dev_no;
 	msg.cmd.device_change_state.state = segment_state_running;
 	rc = resume_device(&msg);
-	if (rc != CONTROLVM_RESP_SUCCESS) {
-		LOGERR("VHBA resume_device failed. busNo=0x%x devNo=0x%x\n",
-		       bus_no, dev_no);
+	if (rc != CONTROLVM_RESP_SUCCESS)
 		return rc;
-	}
 	return 0;
 }
 EXPORT_SYMBOL_GPL(uislib_client_inject_resume_vhba);
@@ -908,7 +817,6 @@ uislib_client_inject_add_vhba(u32 bus_no, u32 dev_no,
 {
 	struct controlvm_message msg;
 
-	LOGINF(" enter busNo=0x%x devNo=0x%x\n", bus_no, dev_no);
 	/* chipset init'ed with bus bus has been previously created -
 	* Verify it still exists step 2: create the VHBA device on the
 	* bus
@@ -932,8 +840,6 @@ uislib_client_inject_add_vhba(u32 bus_no, u32 dev_no,
 		       sizeof(struct irq_info));
 	msg.cmd.create_device.channel_addr = phys_chan_addr;
 	if (chan_bytes < MIN_IO_CHANNEL_SIZE) {
-		LOGERR("wrong channel size.chan_bytes = 0x%x IO_CHANNEL_SIZE= 0x%x\n",
-		       chan_bytes, (unsigned int)MIN_IO_CHANNEL_SIZE);
 		POSTCODE_LINUX_4(VHBA_CREATE_FAILURE_PC, chan_bytes,
 				 MIN_IO_CHANNEL_SIZE, POSTCODE_SEVERITY_ERR);
 		return 0;
@@ -941,7 +847,6 @@ uislib_client_inject_add_vhba(u32 bus_no, u32 dev_no,
 	msg.cmd.create_device.channel_bytes = chan_bytes;
 	msg.cmd.create_device.data_type_uuid = spar_vhba_channel_protocol_uuid;
 	if (create_device(&msg, NULL) != CONTROLVM_RESP_SUCCESS) {
-		LOGERR("VHBA create_device failed.\n");
 		POSTCODE_LINUX_4(VHBA_CREATE_FAILURE_PC, dev_no, bus_no,
 				 POSTCODE_SEVERITY_ERR);
 		return 0;
@@ -967,7 +872,6 @@ uislib_client_inject_add_vnic(u32 bus_no, u32 dev_no,
 {
 	struct controlvm_message msg;
 
-	LOGINF(" enter busNo=0x%x devNo=0x%x\n", bus_no, dev_no);
 	/* chipset init'ed with bus bus has been previously created -
 	* Verify it still exists step 2: create the VNIC device on the
 	* bus
@@ -991,8 +895,6 @@ uislib_client_inject_add_vnic(u32 bus_no, u32 dev_no,
 		       sizeof(struct irq_info));
 	msg.cmd.create_device.channel_addr = phys_chan_addr;
 	if (chan_bytes < MIN_IO_CHANNEL_SIZE) {
-		LOGERR("wrong channel size.chan_bytes = 0x%x IO_CHANNEL_SIZE= 0x%x\n",
-		       chan_bytes, (unsigned int)MIN_IO_CHANNEL_SIZE);
 		POSTCODE_LINUX_4(VNIC_CREATE_FAILURE_PC, chan_bytes,
 				 MIN_IO_CHANNEL_SIZE, POSTCODE_SEVERITY_ERR);
 		return 0;
@@ -1000,7 +902,6 @@ uislib_client_inject_add_vnic(u32 bus_no, u32 dev_no,
 	msg.cmd.create_device.channel_bytes = chan_bytes;
 	msg.cmd.create_device.data_type_uuid = spar_vnic_channel_protocol_uuid;
 	if (create_device(&msg, NULL) != CONTROLVM_RESP_SUCCESS) {
-		LOGERR("VNIC create_device failed.\n");
 		POSTCODE_LINUX_4(VNIC_CREATE_FAILURE_PC, dev_no, bus_no,
 				 POSTCODE_SEVERITY_ERR);
 		return 0;
@@ -1023,11 +924,8 @@ uislib_client_inject_pause_vnic(u32 bus_no, u32 dev_no)
 	msg.cmd.device_change_state.dev_no = dev_no;
 	msg.cmd.device_change_state.state = segment_state_standby;
 	rc = pause_device(&msg);
-	if (rc != CONTROLVM_RESP_SUCCESS) {
-		LOGERR("VNIC pause_device failed. busNo=0x%x devNo=0x%x\n",
-		       bus_no, dev_no);
+	if (rc != CONTROLVM_RESP_SUCCESS)
 		return -1;
-	}
 	return 0;
 }
 EXPORT_SYMBOL_GPL(uislib_client_inject_pause_vnic);
@@ -1043,11 +941,8 @@ uislib_client_inject_resume_vnic(u32 bus_no, u32 dev_no)
 	msg.cmd.device_change_state.dev_no = dev_no;
 	msg.cmd.device_change_state.state = segment_state_running;
 	rc = resume_device(&msg);
-	if (rc != CONTROLVM_RESP_SUCCESS) {
-		LOGERR("VNIC resume_device failed. busNo=0x%x devNo=0x%x\n",
-		       bus_no, dev_no);
+	if (rc != CONTROLVM_RESP_SUCCESS)
 		return -1;
-	}
 	return 0;
 }
 EXPORT_SYMBOL_GPL(uislib_client_inject_resume_vnic);
@@ -1069,11 +964,8 @@ uislib_cache_alloc(struct kmem_cache *cur_pool, char *fn, int ln)
 	*/
 	void *p = kmem_cache_alloc(cur_pool, GFP_ATOMIC | __GFP_NORETRY);
 
-	if (p == NULL) {
-		LOGERR("uislib_malloc failed to alloc uiscmdrsp @%s:%d",
-		       fn, ln);
+	if (!p)
 		return NULL;
-	}
 	return p;
 }
 EXPORT_SYMBOL_GPL(uislib_cache_alloc);
@@ -1081,10 +973,8 @@ EXPORT_SYMBOL_GPL(uislib_cache_alloc);
 void
 uislib_cache_free(struct kmem_cache *cur_pool, void *p, char *fn, int ln)
 {
-	if (p == NULL) {
-		LOGERR("uislib_free NULL pointer @%s:%d", fn, ln);
+	if (!p)
 		return;
-	}
 	kmem_cache_free(cur_pool, p);
 }
 EXPORT_SYMBOL_GPL(uislib_cache_free);
@@ -1162,20 +1052,16 @@ static ssize_t info_debugfs_read(struct file *file, char __user *buf,
 	int remaining_bytes = PROC_READ_BUFFER_SIZE;
 
 /* *start = buf; */
-	if (debug_buf == NULL) {
-		DBGINF("debug_buf == NULL; allocating buffer.\n.");
+	if (!debug_buf) {
 		debug_buf = vmalloc(PROC_READ_BUFFER_SIZE);
 
-		if (debug_buf == NULL) {
-			LOGERR("failed to allocate buffer to provide proc data.\n");
+		if (!debug_buf)
 			return -ENOMEM;
-		}
 	}
 
 	temp = debug_buf;
 
 	if ((*offset == 0) || (!debug_buf_valid)) {
-		DBGINF("calling info_debugfs_read_helper.\n");
 		/* if the read fails, then -1 will be returned */
 		total_bytes = info_debugfs_read_helper(&temp, &remaining_bytes);
 		debug_buf_valid = 1;
@@ -1196,17 +1082,9 @@ static struct device_info *find_dev(u32 bus_no, u32 dev_no)
 	for (bus = bus_list; bus; bus = bus->next) {
 		if (bus->bus_no == bus_no) {
 			/* make sure the device number is valid */
-			if (dev_no >= bus->device_count) {
-				LOGERR("%s bad bus_no, dev_no=%d,%d",
-				       __func__,
-				       (int)bus_no, (int)dev_no);
+			if (dev_no >= bus->device_count)
 				break;
-			}
 			dev = bus->device[dev_no];
-			if (!dev)
-				LOGERR("%s bad bus_no, dev_no=%d,%d",
-				       __func__,
-				       (int)bus_no, (int)dev_no);
 			break;
 		}
 	}
@@ -1253,7 +1131,6 @@ static int process_incoming(void *v)
 				wait_cycles = (cur_cycles - old_cycles);
 		}
 	}
-	LOGINF("wait_cycles=%llu", wait_cycles);
 	cycles_before_wait = wait_cycles;
 	idle_cycles = 0;
 	poll_dev_start = 0;
@@ -1281,7 +1158,7 @@ static int process_incoming(void *v)
 				* Reschedule work to occur as soon as
 				* possible. */
 				idle_cycles = 0;
-				if (new_tail == NULL) {
+				if (!new_tail) {
 					dev->first_busy_cnt++;
 					if (!
 					    (list_is_last
@@ -1294,10 +1171,10 @@ static int process_incoming(void *v)
 					}
 				}
 			}
-			if (incoming_ti.should_stop)
+			if (kthread_should_stop())
 				break;
 		}
-		if (new_tail != NULL) {
+		if (new_tail) {
 			tot_moved_to_tail_cnt++;
 			list_move_tail(new_tail, &poll_dev_chan);
 		}
@@ -1311,12 +1188,10 @@ static int process_incoming(void *v)
 		* - there is no input waiting on any of the channels
 		* - we have received a signal to stop this thread
 		*/
-		if (incoming_ti.should_stop)
+		if (kthread_should_stop())
 			break;
-		if (en_smart_wakeup == 0xFF) {
-			LOGINF("en_smart_wakeup set to 0xff, to force exiting process_incoming");
+		if (en_smart_wakeup == 0xFF)
 			break;
-		}
 		/* wait for POLLJIFFIES_NORMAL jiffies, or until
 		* someone wakes up poll_dev_wake_q,
 		* whichever comes first only do a wait when we have
@@ -1335,7 +1210,6 @@ static int process_incoming(void *v)
 			idle_cycles = idle_cycles + delta_cycles;
 		}
 	}
-	DBGINF("exiting.\n");
 	complete_and_exit(&incoming_ti.has_stopped, 0);
 }
 
@@ -1346,7 +1220,6 @@ initialize_incoming_thread(void)
 		return TRUE;
 	if (!uisthread_start(&incoming_ti,
 			     &process_incoming, NULL, "dev_incoming")) {
-		LOGERR("uisthread_start initialize_incoming_thread ****FAILED");
 		return FALSE;
 	}
 	incoming_started = TRUE;
@@ -1367,11 +1240,9 @@ uislib_enable_channel_interrupts(u32 bus_no, u32 dev_no,
 	struct device_info *dev;
 
 	dev = find_dev(bus_no, dev_no);
-	if (!dev) {
-		LOGERR("%s busNo=%d, devNo=%d", __func__, (int)(bus_no),
-		       (int)(dev_no));
+	if (!dev)
 		return;
-	}
+
 	down(&poll_dev_lock);
 	initialize_incoming_thread();
 	dev->interrupt = interrupt;
@@ -1392,11 +1263,8 @@ uislib_disable_channel_interrupts(u32 bus_no, u32 dev_no)
 	struct device_info *dev;
 
 	dev = find_dev(bus_no, dev_no);
-	if (!dev) {
-		LOGERR("%s busNo=%d, devNo=%d", __func__, (int)(bus_no),
-		       (int)(dev_no));
+	if (!dev)
 		return;
-	}
 	down(&poll_dev_lock);
 	list_del(&dev->list_polling_device_channels);
 	dev->polling = FALSE;
@@ -1446,27 +1314,6 @@ uislib_mod_init(void)
 	if (!unisys_spar_platform)
 		return -ENODEV;
 
-	LOGINF("MONITORAPIS");
-
-	LOGINF("sizeof(struct uiscmdrsp):%lu bytes\n",
-	       (ulong)sizeof(struct uiscmdrsp));
-	LOGINF("sizeof(struct phys_info):%lu\n",
-	       (ulong)sizeof(struct phys_info));
-	LOGINF("sizeof(uiscmdrsp_scsi):%lu\n",
-	       (ulong)sizeof(struct uiscmdrsp_scsi));
-	LOGINF("sizeof(uiscmdrsp_net):%lu\n",
-	       (ulong)sizeof(struct uiscmdrsp_net));
-	LOGINF("sizeof(CONTROLVM_MESSAGE):%lu bytes\n",
-	       (ulong)sizeof(struct controlvm_message));
-	LOGINF("sizeof(struct spar_controlvm_channel_protocol):%lu bytes\n",
-	       (ulong)sizeof(struct spar_controlvm_channel_protocol));
-	LOGINF("sizeof(CHANNEL_HEADER):%lu bytes\n",
-	       (ulong)sizeof(struct channel_header));
-	LOGINF("sizeof(struct spar_io_channel_protocol):%lu bytes\n",
-	       (ulong)sizeof(struct spar_io_channel_protocol));
-	LOGINF("SIZEOF_CMDRSP:%lu bytes\n", SIZEOF_CMDRSP);
-	LOGINF("SIZEOF_PROTOCOL:%lu bytes\n", SIZEOF_PROTOCOL);
-
 	/* initialize global pointers to NULL */
 	bus_list = NULL;
 	bus_list_count = 0;
@@ -1514,8 +1361,6 @@ uislib_mod_exit(void)
 	debugfs_remove(cycles_before_wait_debugfs_read);
 	debugfs_remove(platformnumber_debugfs_read);
 	debugfs_remove(dir_debugfs);
-
-	DBGINF("goodbye.\n");
 }
 
 module_init(uislib_mod_init);
diff --git a/drivers/staging/unisys/uislib/uisqueue.c b/drivers/staging/unisys/uislib/uisqueue.c
index 71bb7b6..d46dd74 100644
--- a/drivers/staging/unisys/uislib/uisqueue.c
+++ b/drivers/staging/unisys/uislib/uisqueue.c
@@ -295,12 +295,10 @@ uisqueue_put_cmdrsp_with_lock_client(struct uisqueue_info *queueinfo,
 	while (!do_locked_client_insert(queueinfo, whichqueue, cmdrsp,
 					(spinlock_t *)insertlock,
 					channel_id)) {
-		if (oktowait != OK_TO_WAIT) {
-			LOGERR("****FAILED visor_signal_insert failed; cannot wait; insert aborted\n");
+		if (oktowait != OK_TO_WAIT)
 			return 0;	/* failed to queue */
-		}
+
 		/* try again */
-		LOGERR("****FAILED visor_signal_insert failed; waiting to try again\n");
 		set_current_state(TASK_INTERRUPTIBLE);
 		schedule_timeout(msecs_to_jiffies(10));
 	}
diff --git a/drivers/staging/unisys/uislib/uisthread.c b/drivers/staging/unisys/uislib/uisthread.c
index 25adf1a..d3c973b 100644
--- a/drivers/staging/unisys/uislib/uisthread.c
+++ b/drivers/staging/unisys/uislib/uisthread.c
@@ -20,12 +20,9 @@
 #include <linux/signal.h>
 #include <linux/sched.h>
 #include <linux/kthread.h>
-#include "uniklog.h"
 #include "uisutils.h"
 #include "uisthread.h"
 
-#define KILL(a, b, c) kill_pid(find_vpid(a), b, c)
-
 /* this is shorter than using __FILE__ (full path name) in
  * debug/info/error messages
  */
@@ -41,17 +38,14 @@ int
 uisthread_start(struct uisthread_info *thrinfo,
 		int (*threadfn)(void *), void *thrcontext, char *name)
 {
-	thrinfo->should_stop = 0;
 	/* used to stop the thread */
 	init_completion(&thrinfo->has_stopped);
-	thrinfo->task = kthread_create(threadfn, thrcontext, name, NULL);
+	thrinfo->task = kthread_run(threadfn, thrcontext, name);
 	if (IS_ERR(thrinfo->task)) {
 		thrinfo->id = 0;
 		return 0;	/* failure */
 	}
 	thrinfo->id = thrinfo->task->pid;
-	wake_up_process(thrinfo->task);
-	LOGINF("started thread pid:%d\n", thrinfo->id);
 	return 1;
 }
 EXPORT_SYMBOL_GPL(uisthread_start);
@@ -59,27 +53,17 @@ EXPORT_SYMBOL_GPL(uisthread_start);
 void
 uisthread_stop(struct uisthread_info *thrinfo)
 {
-	int ret;
 	int stopped = 0;
 
 	if (thrinfo->id == 0)
 		return;		/* thread not running */
 
-	LOGINF("uisthread_stop stopping id:%d\n", thrinfo->id);
-	thrinfo->should_stop = 1;
-	ret = KILL(thrinfo->id, SIGHUP, 1);
-	if (ret) {
-		LOGERR("unable to signal thread %d\n", ret);
-	} else {
-		/* give up if the thread has NOT died in 1 minute */
-		if (wait_for_completion_timeout(&thrinfo->has_stopped, 60 * HZ))
-			stopped = 1;
-		else
-			LOGERR("timed out trying to signal thread\n");
-	}
-	if (stopped) {
-		LOGINF("uisthread_stop stopped id:%d\n", thrinfo->id);
+	kthread_stop(thrinfo->task);
+	/* give up if the thread has NOT died in 1 minute */
+	if (wait_for_completion_timeout(&thrinfo->has_stopped, 60 * HZ))
+		stopped = 1;
+
+	if (stopped)
 		thrinfo->id = 0;
-	}
 }
 EXPORT_SYMBOL_GPL(uisthread_stop);
diff --git a/drivers/staging/unisys/uislib/uisutils.c b/drivers/staging/unisys/uislib/uisutils.c
index 31318d2..26ab765 100644
--- a/drivers/staging/unisys/uislib/uisutils.c
+++ b/drivers/staging/unisys/uislib/uisutils.c
@@ -21,7 +21,6 @@
 #include <linux/uuid.h>
 #include <linux/spinlock.h>
 #include <linux/list.h>
-#include "uniklog.h"
 #include "uisutils.h"
 #include "version.h"
 #include "vbushelper.h"
@@ -53,7 +52,6 @@ uisutil_add_proc_line_ex(int *total, char **buffer, int *buffer_remaining,
 	va_list args;
 	int len;
 
-	DBGINF("buffer = 0x%p : *buffer = 0x%p.\n", buffer, *buffer);
 	va_start(args, format);
 	len = vsnprintf(*buffer, *buffer_remaining, format, args);
 	va_end(args);
@@ -61,7 +59,6 @@ uisutil_add_proc_line_ex(int *total, char **buffer, int *buffer_remaining,
 		*buffer += *buffer_remaining;
 		*total += *buffer_remaining;
 		*buffer_remaining = 0;
-		LOGERR("bytes remaining is too small!\n");
 		return -1;
 	}
 	*buffer_remaining -= len;
@@ -75,8 +72,6 @@ int
 uisctrl_register_req_handler(int type, void *fptr,
 			     struct ultra_vbus_deviceinfo *chipset_driver_info)
 {
-	LOGINF("type = %d, fptr = 0x%p.\n", type, fptr);
-
 	switch (type) {
 	case 2:
 		if (fptr) {
@@ -91,7 +86,6 @@ uisctrl_register_req_handler(int type, void *fptr,
 		break;
 
 	default:
-		LOGERR("invalid type %d.\n", type);
 		return 0;
 	}
 	if (chipset_driver_info)
@@ -102,71 +96,6 @@ uisctrl_register_req_handler(int type, void *fptr,
 }
 EXPORT_SYMBOL_GPL(uisctrl_register_req_handler);
 
-int
-uisctrl_register_req_handler_ex(uuid_le switch_uuid,
-			const char *switch_type_name,
-			int (*controlfunc)(struct io_msgs *),
-			unsigned long min_channel_bytes,
-			int (*server_channel_ok)(unsigned long channel_bytes),
-			int (*server_channel_init)(void *x,
-						unsigned char *client_str,
-						u32 client_str_len, u64 bytes),
-			struct ultra_vbus_deviceinfo *chipset_driver_info)
-{
-	struct req_handler_info *req_handler;
-
-	LOGINF("type=%pUL, controlfunc=0x%p.\n",
-	       &switch_uuid, controlfunc);
-	if (!controlfunc) {
-		LOGERR("%pUL: controlfunc must be supplied\n", &switch_uuid);
-		return 0;
-	}
-	if (!server_channel_ok) {
-		LOGERR("%pUL: Server_Channel_Ok must be supplied\n",
-				&switch_uuid);
-		return 0;
-	}
-	if (!server_channel_init) {
-		LOGERR("%pUL: Server_Channel_Init must be supplied\n",
-				&switch_uuid);
-		return 0;
-	}
-	req_handler = req_handler_add(switch_uuid,
-				      switch_type_name,
-				      controlfunc,
-				      min_channel_bytes,
-				      server_channel_ok, server_channel_init);
-	if (!req_handler) {
-		LOGERR("failed to add %pUL to server list\n", &switch_uuid);
-		return 0;
-	}
-
-	atomic_inc(&uisutils_registered_services);
-	if (chipset_driver_info) {
-		bus_device_info_init(chipset_driver_info, "chipset",
-				     "uislib", VERSION, NULL);
-		return 1;
-	}
-
-	LOGERR("failed to register type %pUL.\n", &switch_uuid);
-	return 0;
-}
-EXPORT_SYMBOL_GPL(uisctrl_register_req_handler_ex);
-
-int
-uisctrl_unregister_req_handler_ex(uuid_le switch_uuid)
-{
-	LOGINF("type=%pUL.\n", &switch_uuid);
-	if (req_handler_del(switch_uuid) < 0) {
-		LOGERR("failed to remove %pUL from server list\n",
-		       &switch_uuid);
-		return 0;
-	}
-	atomic_dec(&uisutils_registered_services);
-	return 1;
-}
-EXPORT_SYMBOL_GPL(uisctrl_unregister_req_handler_ex);
-
 /*
  * unsigned int uisutil_copy_fragsinfo_from_skb(unsigned char *calling_ctx,
  *					     void *skb_in,
@@ -185,117 +114,11 @@ EXPORT_SYMBOL_GPL(uisctrl_unregister_req_handler_ex);
  *					    return value indicates number of
  *					    entries filled in frags
  */
-unsigned int
-uisutil_copy_fragsinfo_from_skb(unsigned char *calling_ctx, void *skb_in,
-				unsigned int firstfraglen,
-				unsigned int frags_max,
-				struct phys_info frags[])
-{
-	unsigned int count = 0, ii, size, offset = 0, numfrags;
-	struct sk_buff *skb = skb_in;
-
-	numfrags = skb_shinfo(skb)->nr_frags;
-
-	while (firstfraglen) {
-		if (count == frags_max) {
-			LOGERR("%s frags array too small: max:%d count:%d\n",
-			       calling_ctx, frags_max, count);
-			return -1;	/* failure */
-		}
-		frags[count].pi_pfn =
-		    page_to_pfn(virt_to_page(skb->data + offset));
-		frags[count].pi_off =
-		    (unsigned long)(skb->data + offset) & PI_PAGE_MASK;
-		size =
-		    min(firstfraglen,
-			(unsigned int)(PI_PAGE_SIZE - frags[count].pi_off));
-		/* can take smallest of firstfraglen(what's left) OR
-		* bytes left in the page
-		*/
-		frags[count].pi_len = size;
-		firstfraglen -= size;
-		offset += size;
-		count++;
-	}
-	if (!numfrags)
-		goto dolist;
-
-	if ((count + numfrags) > frags_max) {
-		LOGERR("**** FAILED %s frags array too small: max:%d count+nr_frags:%d\n",
-		       calling_ctx, frags_max, count + numfrags);
-		return -1;	/* failure */
-	}
-
-	for (ii = 0; ii < numfrags; ii++) {
-		count = add_physinfo_entries(page_to_pfn(
-				skb_frag_page(&skb_shinfo(skb)->frags[ii])),
-					skb_shinfo(skb)->frags[ii].
-					page_offset,
-					skb_shinfo(skb)->frags[ii].
-					size, count, frags_max,
-					frags);
-		if (count == 0) {
-			LOGERR("**** FAILED to add physinfo entries\n");
-			return -1;	/* failure */
-		}
-	}
-
-dolist: if (skb_shinfo(skb)->frag_list) {
-		struct sk_buff *skbinlist;
-		int c;
-
-		for (skbinlist = skb_shinfo(skb)->frag_list; skbinlist;
-		     skbinlist = skbinlist->next) {
-			c = uisutil_copy_fragsinfo_from_skb("recursive",
-				skbinlist,
-				skbinlist->len - skbinlist->data_len,
-				frags_max - count,
-				&frags[count]);
-			if (c == -1) {
-				LOGERR("**** FAILED recursive call failed\n");
-				return -1;
-			}
-			count += c;
-		}
-	}
-	return count;
-}
-EXPORT_SYMBOL_GPL(uisutil_copy_fragsinfo_from_skb);
 
 static LIST_HEAD(req_handler_info_list); /* list of struct req_handler_info */
 static DEFINE_SPINLOCK(req_handler_info_list_lock);
 
 struct req_handler_info *
-req_handler_add(uuid_le switch_uuid,
-	      const char *switch_type_name,
-	      int (*controlfunc)(struct io_msgs *),
-	      unsigned long min_channel_bytes,
-	      int (*server_channel_ok)(unsigned long channel_bytes),
-	      int (*server_channel_init)
-	       (void *x, unsigned char *clientstr, u32 clientstr_len,
-		u64 bytes))
-{
-	struct req_handler_info *rc = NULL;
-
-	rc = kzalloc(sizeof(*rc), GFP_ATOMIC);
-	if (!rc)
-		return NULL;
-	rc->switch_uuid = switch_uuid;
-	rc->controlfunc = controlfunc;
-	rc->min_channel_bytes = min_channel_bytes;
-	rc->server_channel_ok = server_channel_ok;
-	rc->server_channel_init = server_channel_init;
-	if (switch_type_name)
-		strncpy(rc->switch_type_name, switch_type_name,
-			sizeof(rc->switch_type_name) - 1);
-	spin_lock(&req_handler_info_list_lock);
-	list_add_tail(&rc->list_link, &req_handler_info_list);
-	spin_unlock(&req_handler_info_list_lock);
-
-	return rc;
-}
-
-struct req_handler_info *
 req_handler_find(uuid_le switch_uuid)
 {
 	struct list_head *lelt, *tmp;
@@ -312,23 +135,3 @@ req_handler_find(uuid_le switch_uuid)
 	spin_unlock(&req_handler_info_list_lock);
 	return NULL;
 }
-
-int
-req_handler_del(uuid_le switch_uuid)
-{
-	struct list_head *lelt, *tmp;
-	struct req_handler_info *entry = NULL;
-	int rc = -1;
-
-	spin_lock(&req_handler_info_list_lock);
-	list_for_each_safe(lelt, tmp, &req_handler_info_list) {
-		entry = list_entry(lelt, struct req_handler_info, list_link);
-		if (uuid_le_cmp(entry->switch_uuid, switch_uuid) == 0) {
-			list_del(lelt);
-			kfree(entry);
-			rc++;
-		}
-	}
-	spin_unlock(&req_handler_info_list_lock);
-	return rc;
-}
diff --git a/drivers/staging/unisys/virthba/Kconfig b/drivers/staging/unisys/virthba/Kconfig
index 9af98fc..dfadfc4 100644
--- a/drivers/staging/unisys/virthba/Kconfig
+++ b/drivers/staging/unisys/virthba/Kconfig
@@ -4,7 +4,10 @@
 
 config UNISYS_VIRTHBA
 	tristate "Unisys virthba driver"
-	depends on UNISYSSPAR && UNISYS_VISORCHIPSET && UNISYS_UISLIB && UNISYS_VIRTPCI && SCSI
+	depends on SCSI
+	select UNISYS_VISORCHIPSET
+	select UNISYS_UISLIB
+	select UNISYS_VIRTPCI
 	---help---
 	If you say Y here, you will enable the Unisys virthba driver.
 
diff --git a/drivers/staging/unisys/virthba/Makefile b/drivers/staging/unisys/virthba/Makefile
index ba55ae1..a4e4037 100644
--- a/drivers/staging/unisys/virthba/Makefile
+++ b/drivers/staging/unisys/virthba/Makefile
@@ -6,7 +6,6 @@ obj-$(CONFIG_UNISYS_VIRTHBA)	+= virthba.o
 
 ccflags-y += -Idrivers/staging/unisys/include
 ccflags-y += -Idrivers/staging/unisys/uislib
-ccflags-y += -Idrivers/staging/unisys/timskmod
 ccflags-y += -Idrivers/staging/unisys/visorchipset
 ccflags-y += -Idrivers/staging/unisys/virtpci
 ccflags-y += -Idrivers/staging/unisys/common-spar/include
diff --git a/drivers/staging/unisys/virthba/virthba.c b/drivers/staging/unisys/virthba/virthba.c
index e6ecea5..d9001cc 100644
--- a/drivers/staging/unisys/virthba/virthba.c
+++ b/drivers/staging/unisys/virthba/virthba.c
@@ -26,14 +26,11 @@
  * which start with an 8 digit sequence number, a colon, and then
  * letters after that */
 
-#undef DBGINF
-
 #include <linux/kernel.h>
 #ifdef CONFIG_MODVERSIONS
 #include <config/modversions.h>
 #endif
 
-#include "uniklog.h"
 #include "diagnostics/appos_subsystems.h"
 #include "uisutils.h"
 #include "uisqueue.h"
@@ -261,11 +258,9 @@ add_scsipending_entry(struct virthba_info *vhbainfo, char cmdtype, void *new)
 
 	spin_lock_irqsave(&vhbainfo->privlock, flags);
 	insert_location = vhbainfo->nextinsert;
-	while (vhbainfo->pending[insert_location].sent != NULL) {
+	while (vhbainfo->pending[insert_location].sent) {
 		insert_location = (insert_location + 1) % MAX_PENDING_REQUESTS;
 		if (insert_location == (int)vhbainfo->nextinsert) {
-			LOGERR("Queue should be full. insert_location<<%d>>  Unable to find open slot for pending commands.\n",
-			     insert_location);
 			spin_unlock_irqrestore(&vhbainfo->privlock, flags);
 			return -1;
 		}
@@ -286,7 +281,6 @@ add_scsipending_entry_with_wait(struct virthba_info *vhbainfo, char cmdtype,
 	int insert_location = add_scsipending_entry(vhbainfo, cmdtype, new);
 
 	while (insert_location == -1) {
-		LOGERR("Failed to find empty queue slot.  Waiting to try again\n");
 		set_current_state(TASK_INTERRUPTIBLE);
 		schedule_timeout(msecs_to_jiffies(10));
 		insert_location = add_scsipending_entry(vhbainfo, cmdtype, new);
@@ -301,16 +295,8 @@ del_scsipending_entry(struct virthba_info *vhbainfo, uintptr_t del)
 	unsigned long flags;
 	void *sent = NULL;
 
-	if (del >= MAX_PENDING_REQUESTS) {
-		LOGERR("Invalid queue position <<%lu>> given to delete. MAX_PENDING_REQUESTS <<%d>>\n",
-		     (unsigned long)del, MAX_PENDING_REQUESTS);
-	} else {
+	if (del < MAX_PENDING_REQUESTS) {
 		spin_lock_irqsave(&vhbainfo->privlock, flags);
-
-		if (vhbainfo->pending[del].sent == NULL)
-			LOGERR("Deleting already cleared queue entry at <<%lu>>.\n",
-			     (unsigned long)del);
-
 		sent = vhbainfo->pending[del].sent;
 
 		vhbainfo->pending[del].cmdtype = 0;
@@ -357,13 +343,7 @@ send_disk_add_remove(struct diskaddremove *dar)
 		error =
 		    scsi_add_device(dar->shost, dar->channel, dar->id,
 				    dar->lun);
-		if (error)
-			LOGERR("Failed scsi_add_device: host_no=%d[chan=%d:id=%d:lun=%d]\n",
-			     dar->shost->host_no, dar->channel, dar->id,
-			     dar->lun);
-	} else
-		LOGERR("Failed scsi_device_lookup:[chan=%d:id=%d:lun=%d]\n",
-		       dar->channel, dar->id, dar->lun);
+	}
 	kfree(dar);
 }
 
@@ -408,10 +388,6 @@ process_disk_notify(struct Scsi_Host *shost, struct uiscmdrsp *cmdrsp)
 		dar->id = cmdrsp->disknotify.id;
 		dar->lun = cmdrsp->disknotify.lun;
 		QUEUE_DISKADDREMOVE(dar);
-	} else {
-		LOGERR("kmalloc failed for dar. host_no=%d[chan=%d:id=%d:lun=%d]\n",
-		     shost->host_no, cmdrsp->disknotify.channel,
-		     cmdrsp->disknotify.id, cmdrsp->disknotify.lun);
 	}
 }
 
@@ -427,7 +403,7 @@ virthba_isr(int irq, void *dev_id)
 	u64 mask;
 	unsigned long long rc1;
 
-	if (virthbainfo == NULL)
+	if (!virthbainfo)
 		return IRQ_NONE;
 	virthbainfo->interrupts_rcvd++;
 	channel_header = virthbainfo->chinfo.queueinfo->chan;
@@ -467,13 +443,6 @@ virthba_probe(struct virtpci_dev *virtpcidev, const struct pci_device_id *id)
 	struct signal_queue_header __iomem *pqhdr;
 	u64 mask;
 
-	LOGVER("entering virthba_probe...\n");
-	LOGVER("virtpcidev bus_no<<%d>>devNo<<%d>>", virtpcidev->bus_no,
-	       virtpcidev->device_no);
-
-	LOGINF("entering virthba_probe...\n");
-	LOGINF("virtpcidev bus_no<<%d>>devNo<<%d>>", virtpcidev->bus_no,
-	       virtpcidev->device_no);
 	POSTCODE_LINUX_2(VHBA_PROBE_ENTRY_PC, POSTCODE_SEVERITY_INFO);
 	/* call scsi_host_alloc to register a scsi host adapter
 	 * instance - this virthba that has just been created is an
@@ -482,7 +451,6 @@ virthba_probe(struct virtpci_dev *virtpcidev, const struct pci_device_id *id)
 	 * initialization.  The host is not published to the scsi
 	 * midlayer until scsi_add_host is called.
 	 */
-	DBGINF("calling scsi_host_alloc.\n");
 
 	/* arg 2 passed in length of extra space we want allocated
 	 * with scsi_host struct for our own use scsi_host_alloc
@@ -490,12 +458,9 @@ virthba_probe(struct virtpci_dev *virtpcidev, const struct pci_device_id *id)
 	 */
 	scsihost = scsi_host_alloc(&virthba_driver_template,
 				   sizeof(struct virthba_info));
-	if (scsihost == NULL)
+	if (!scsihost)
 		return -ENODEV;
 
-	DBGINF("scsihost: 0x%p, scsihost->this_id: %d, host_no: %d.\n",
-	       scsihost, scsihost->this_id, scsihost->host_no);
-
 	scsihost->this_id = UIS_MAGIC_VHBA;
 	/* linux treats max-channel differently than max-id & max-lun.
 	 * In the latter cases, those two values result in 0 to max-1
@@ -503,12 +468,6 @@ virthba_probe(struct virtpci_dev *virtpcidev, const struct pci_device_id *id)
 	 * scan is 0 to max (inclusive); so we will subtract one from
 	 * the max-channel value.
 	 */
-	LOGINF("virtpcidev->scsi.max.max_channel=%u, max_id=%u, max_lun=%u, cmd_per_lun=%u, max_io_size=%u\n",
-	     (unsigned)virtpcidev->scsi.max.max_channel - 1,
-	     (unsigned)virtpcidev->scsi.max.max_id,
-	     (unsigned)virtpcidev->scsi.max.max_lun,
-	     (unsigned)virtpcidev->scsi.max.cmd_per_lun,
-	     (unsigned)virtpcidev->scsi.max.max_io_size);
 	scsihost->max_channel = (unsigned)virtpcidev->scsi.max.max_channel;
 	scsihost->max_id = (unsigned)virtpcidev->scsi.max.max_id;
 	scsihost->max_lun = (unsigned)virtpcidev->scsi.max.max_lun;
@@ -519,15 +478,6 @@ virthba_probe(struct virtpci_dev *virtpcidev, const struct pci_device_id *id)
 	    (unsigned short)(virtpcidev->scsi.max.max_io_size / PAGE_SIZE);
 	if (scsihost->sg_tablesize > MAX_PHYS_INFO)
 		scsihost->sg_tablesize = MAX_PHYS_INFO;
-	LOGINF("scsihost->max_channel=%u, max_id=%u, max_lun=%llu, cmd_per_lun=%u, max_sectors=%hu, sg_tablesize=%hu\n",
-	     scsihost->max_channel, scsihost->max_id, scsihost->max_lun,
-	     scsihost->cmd_per_lun, scsihost->max_sectors,
-	     scsihost->sg_tablesize);
-	LOGINF("scsihost->can_queue=%u, scsihost->cmd_per_lun=%u, max_sectors=%hu, sg_tablesize=%hu\n",
-	     scsihost->can_queue, scsihost->cmd_per_lun, scsihost->max_sectors,
-	     scsihost->sg_tablesize);
-
-	DBGINF("calling scsi_add_host\n");
 
 	/* this creates "host%d" in sysfs.  If 2nd argument is NULL,
 	 * then this generic /sys/devices/platform/host?  device is
@@ -538,7 +488,6 @@ virthba_probe(struct virtpci_dev *virtpcidev, const struct pci_device_id *id)
 	 */
 	error = scsi_add_host(scsihost, &virtpcidev->generic_dev);
 	if (error) {
-		LOGERR("scsi_add_host ****FAILED 0x%x  TBD - RECOVER\n", error);
 		POSTCODE_LINUX_2(VHBA_PROBE_FAILURE_PC, POSTCODE_SEVERITY_ERR);
 		/* decr refcount on scsihost which was incremented by
 		 * scsi_add_host so the scsi_host gets deleted
@@ -550,7 +499,7 @@ virthba_probe(struct virtpci_dev *virtpcidev, const struct pci_device_id *id)
 	virthbainfo = (struct virthba_info *)scsihost->hostdata;
 	memset(virthbainfo, 0, sizeof(struct virthba_info));
 	for (i = 0; i < VIRTHBASOPENMAX; i++) {
-		if (virthbas_open[i].virthbainfo == NULL) {
+		if (!virthbas_open[i].virthbainfo) {
 			virthbas_open[i].virthbainfo = virthbainfo;
 			break;
 		}
@@ -560,9 +509,6 @@ virthba_probe(struct virtpci_dev *virtpcidev, const struct pci_device_id *id)
 	virthbainfo->virtpcidev = virtpcidev;
 	spin_lock_init(&virthbainfo->chinfo.insertlock);
 
-	DBGINF("generic_dev: 0x%p, queueinfo: 0x%p.\n",
-	       &virtpcidev->generic_dev, &virtpcidev->queueinfo);
-
 	init_waitqueue_head(&virthbainfo->rsp_queue);
 	spin_lock_init(&virthbainfo->privlock);
 	memset(&virthbainfo->pending, 0, sizeof(virthbainfo->pending));
@@ -584,8 +530,6 @@ virthba_probe(struct virtpci_dev *virtpcidev, const struct pci_device_id *id)
 	       ULTRA_IO_CHANNEL_IS_POLLING,
 	       &virthbainfo->chinfo.queueinfo->chan->features);
 	/* start thread that will receive scsicmnd responses */
-	DBGINF("starting rsp thread -- queueinfo: 0x%p, threadinfo: 0x%p.\n",
-	       virthbainfo->chinfo.queueinfo, &virthbainfo->chinfo.threadinfo);
 
 	channel_header = virthbainfo->chinfo.queueinfo->chan;
 	pqhdr = (struct signal_queue_header __iomem *)
@@ -596,7 +540,6 @@ virthba_probe(struct virtpci_dev *virtpcidev, const struct pci_device_id *id)
 	if (!uisthread_start(&virthbainfo->chinfo.threadinfo,
 			     process_incoming_rsps,
 			     virthbainfo, "vhba_incoming")) {
-		LOGERR("uisthread_start rsp ****FAILED\n");
 		/* decr refcount on scsihost which was incremented by
 		 * scsi_add_host so the scsi_host gets deleted
 		 */
@@ -604,42 +547,26 @@ virthba_probe(struct virtpci_dev *virtpcidev, const struct pci_device_id *id)
 		scsi_host_put(scsihost);
 		return -ENODEV;
 	}
-	LOGINF("sendInterruptHandle=0x%16llX",
-	       virthbainfo->intr.send_irq_handle);
-	LOGINF("recvInterruptHandle=0x%16llX",
-	       virthbainfo->intr.recv_irq_handle);
-	LOGINF("recvInterruptVector=0x%8X",
-	       virthbainfo->intr.recv_irq_vector);
-	LOGINF("recvInterruptShared=0x%2X",
-	       virthbainfo->intr.recv_irq_shared);
-	LOGINF("scsihost.hostt->name=%s", scsihost->hostt->name);
 	virthbainfo->interrupt_vector =
 	    virthbainfo->intr.recv_irq_handle & INTERRUPT_VECTOR_MASK;
 	rsp = request_irq(virthbainfo->interrupt_vector, handler, IRQF_SHARED,
 			  scsihost->hostt->name, virthbainfo);
 	if (rsp != 0) {
-		LOGERR("request_irq(%d) uislib_virthba_ISR request failed with rsp=%d\n",
-		       virthbainfo->interrupt_vector, rsp);
 		virthbainfo->interrupt_vector = -1;
 		POSTCODE_LINUX_2(VHBA_PROBE_FAILURE_PC, POSTCODE_SEVERITY_ERR);
 	} else {
-		u64 __iomem *Features_addr =
+		u64 __iomem *features_addr =
 		    &virthbainfo->chinfo.queueinfo->chan->features;
-		LOGERR("request_irq(%d) uislib_virthba_ISR request succeeded\n",
-		       virthbainfo->interrupt_vector);
 		mask = ~(ULTRA_IO_CHANNEL_IS_POLLING |
 			 ULTRA_IO_DRIVER_DISABLES_INTS);
-		uisqueue_interlocked_and(Features_addr, mask);
+		uisqueue_interlocked_and(features_addr, mask);
 		mask = ULTRA_IO_DRIVER_ENABLES_INTS;
-		uisqueue_interlocked_or(Features_addr, mask);
+		uisqueue_interlocked_or(features_addr, mask);
 		rsltq_wait_usecs = 4000000;
 	}
 
-	DBGINF("calling scsi_scan_host.\n");
 	scsi_scan_host(scsihost);
-	DBGINF("return from scsi_scan_host.\n");
 
-	LOGINF("virthba added scsihost:0x%p\n", scsihost);
 	POSTCODE_LINUX_2(VHBA_PROBE_EXIT_PC, POSTCODE_SEVERITY_INFO);
 	return 0;
 }
@@ -651,28 +578,18 @@ virthba_remove(struct virtpci_dev *virtpcidev)
 	struct Scsi_Host *scsihost =
 	    (struct Scsi_Host *)virtpcidev->scsi.scsihost;
 
-	LOGINF("virtpcidev bus_no<<%d>>devNo<<%d>>", virtpcidev->bus_no,
-	       virtpcidev->device_no);
 	virthbainfo = (struct virthba_info *)scsihost->hostdata;
 	if (virthbainfo->interrupt_vector != -1)
 		free_irq(virthbainfo->interrupt_vector, virthbainfo);
-	LOGINF("Removing virtpcidev: 0x%p, virthbainfo: 0x%p\n", virtpcidev,
-	       virthbainfo);
 
-	DBGINF("removing scsihost: 0x%p, scsihost->this_id: %d\n", scsihost,
-	       scsihost->this_id);
 	scsi_remove_host(scsihost);
 
-	DBGINF("stopping thread.\n");
 	uisthread_stop(&virthbainfo->chinfo.threadinfo);
 
-	DBGINF("calling scsi_host_put\n");
-
 	/* decr refcount on scsihost which was incremented by
 	 * scsi_add_host so the scsi_host gets deleted
 	 */
 	scsi_host_put(scsihost);
-	LOGINF("virthba removed scsi_host.\n");
 }
 
 static int
@@ -686,19 +603,12 @@ forward_vdiskmgmt_command(enum vdisk_mgmt_types vdiskcmdtype,
 	int notifyresult = 0xffff;
 	wait_queue_head_t notifyevent;
 
-	LOGINF("vDiskMgmt:%d %d:%d:%d\n", vdiskcmdtype,
-	       vdest->channel, vdest->id, vdest->lun);
-
-	if (virthbainfo->serverdown || virthbainfo->serverchangingstate) {
-		DBGINF("Server is down/changing state. Returning Failure.\n");
+	if (virthbainfo->serverdown || virthbainfo->serverchangingstate)
 		return FAILED;
-	}
 
 	cmdrsp = kzalloc(SIZEOF_CMDRSP, GFP_ATOMIC);
-	if (cmdrsp == NULL) {
-		LOGERR("kmalloc of cmdrsp failed.\n");
-		return FAILED;	/* reject */
-	}
+	if (!cmdrsp)
+		return FAILED;  /* reject */
 
 	init_waitqueue_head(&notifyevent);
 
@@ -727,10 +637,7 @@ forward_vdiskmgmt_command(enum vdisk_mgmt_types vdiskcmdtype,
 					     &virthbainfo->chinfo.insertlock,
 					     DONT_ISSUE_INTERRUPT, (u64)NULL,
 					     OK_TO_WAIT, "vhba");
-	LOGINF("VdiskMgmt waiting on event notifyevent=0x%p\n",
-	       cmdrsp->scsitaskmgmt.notify);
 	wait_event(notifyevent, notifyresult != 0xffff);
-	LOGINF("VdiskMgmt complete; result:%d\n", cmdrsp->vdiskmgmt.result);
 	kfree(cmdrsp);
 	return SUCCESS;
 }
@@ -749,19 +656,12 @@ forward_taskmgmt_command(enum task_mgmt_types tasktype,
 	int notifyresult = 0xffff;
 	wait_queue_head_t notifyevent;
 
-	LOGINF("TaskMgmt:%d %d:%d:%llu\n", tasktype,
-	       scsidev->channel, scsidev->id, scsidev->lun);
-
-	if (virthbainfo->serverdown || virthbainfo->serverchangingstate) {
-		DBGINF("Server is down/changing state. Returning Failure.\n");
+	if (virthbainfo->serverdown || virthbainfo->serverchangingstate)
 		return FAILED;
-	}
 
 	cmdrsp = kzalloc(SIZEOF_CMDRSP, GFP_ATOMIC);
-	if (cmdrsp == NULL) {
-		LOGERR("kmalloc of cmdrsp failed.\n");
+	if (!cmdrsp)
 		return FAILED;	/* reject */
-	}
 
 	init_waitqueue_head(&notifyevent);
 
@@ -789,10 +689,7 @@ forward_taskmgmt_command(enum task_mgmt_types tasktype,
 					     &virthbainfo->chinfo.insertlock,
 					     DONT_ISSUE_INTERRUPT, (u64)NULL,
 					     OK_TO_WAIT, "vhba");
-	LOGINF("TaskMgmt waiting on event notifyevent=0x%p\n",
-	       cmdrsp->scsitaskmgmt.notify);
 	wait_event(notifyevent, notifyresult != 0xffff);
-	LOGINF("TaskMgmt complete; result:%d\n", cmdrsp->scsitaskmgmt.result);
 	kfree(cmdrsp);
 	return SUCCESS;
 }
@@ -882,7 +779,6 @@ static int
 virthba_host_reset_handler(struct scsi_cmnd *scsicmd)
 {
 	/* issue TASK_MGMT_TARGET_RESET for each target on each bus for host */
-	LOGERR("virthba_host_reset_handler Not yet implemented\n");
 	return SUCCESS;
 }
 
@@ -899,7 +795,6 @@ virthba_get_info(struct Scsi_Host *shp)
 static int
 virthba_ioctl(struct scsi_device *dev, int cmd, void __user *arg)
 {
-	DBGINF("In virthba_ioctl: ioctl: cmd=0x%x\n", cmd);
 	return -EINVAL;
 }
 
@@ -923,16 +818,11 @@ virthba_queue_command_lck(struct scsi_cmnd *scsicmd,
 	struct scatterlist *sgl = NULL;
 	int sg_failed = 0;
 
-	if (virthbainfo->serverdown || virthbainfo->serverchangingstate) {
-		DBGINF("Server is down/changing state. Returning SCSI_MLQUEUE_DEVICE_BUSY.\n");
+	if (virthbainfo->serverdown || virthbainfo->serverchangingstate)
 		return SCSI_MLQUEUE_DEVICE_BUSY;
-	}
-
 	cmdrsp = kzalloc(SIZEOF_CMDRSP, GFP_ATOMIC);
-	if (cmdrsp == NULL) {
-		LOGERR("kmalloc of cmdrsp failed.\n");
+	if (!cmdrsp)
 		return 1;	/* reject the command */
-	}
 
 	/* now saving everything we need from scsi_cmd into cmdrsp
 	 * before we queue cmdrsp set type to command - as opposed to
@@ -947,7 +837,6 @@ virthba_queue_command_lck(struct scsi_cmnd *scsicmd,
 	if (insert_location != -1) {
 		cmdrsp->scsi.scsicmd = (void *)(uintptr_t)insert_location;
 	} else {
-		LOGERR("Queue is full. Returning busy.\n");
 		kfree(cmdrsp);
 		return SCSI_MLQUEUE_DEVICE_BUSY;
 	}
@@ -968,8 +857,6 @@ virthba_queue_command_lck(struct scsi_cmnd *scsicmd,
 		max_buff_len = cmdrsp->scsi.bufflen;
 
 	if (scsi_sg_count(scsicmd) > MAX_PHYS_INFO) {
-		LOGERR("scsicmd use_sg:%d greater than MAX:%d\n",
-		       scsi_sg_count(scsicmd), MAX_PHYS_INFO);
 		del_scsipending_entry(virthbainfo, (uintptr_t)insert_location);
 		kfree(cmdrsp);
 		return 1;	/* reject the command */
@@ -982,11 +869,8 @@ virthba_queue_command_lck(struct scsi_cmnd *scsicmd,
 	/* convert buffer to phys information */
 	if (scsi_sg_count(scsicmd) == 0) {
 		if (scsi_bufflen(scsicmd) > 0) {
-			LOGERR("**** FAILED No scatter list for bufflen > 0\n");
 			BUG_ON(scsi_sg_count(scsicmd) == 0);
 		}
-		DBGINF("No sg; buffer:0x%p bufflen:%d\n",
-		       scsi_sglist(scsicmd), scsi_bufflen(scsicmd));
 	} else {
 		/* buffer is scatterlist - copy it out */
 		sgl = scsi_sglist(scsicmd);
@@ -994,21 +878,9 @@ virthba_queue_command_lck(struct scsi_cmnd *scsicmd,
 		for_each_sg(sgl, sg, scsi_sg_count(scsicmd), i) {
 			cmdrsp->scsi.gpi_list[i].address = sg_phys(sg);
 			cmdrsp->scsi.gpi_list[i].length = sg->length;
-			if ((i != 0) && (sg->offset != 0))
-				LOGINF("Offset on a sg_entry other than zero =<<%d>>.\n",
-				       sg->offset);
 		}
 
 		if (sg_failed) {
-			LOGERR("Start sg_list dump (entries %d, bufflen %d)...\n",
-			       scsi_sg_count(scsicmd), cmdrsp->scsi.bufflen);
-			for_each_sg(sgl, sg, scsi_sg_count(scsicmd), i) {
-				LOGERR("   Entry(%d): page->[0x%p], phys->[0x%Lx], off(%d), len(%d)\n",
-				       i, sg_page(sg),
-				       (unsigned long long)sg_phys(sg),
-				       sg->offset, sg->length);
-			}
-			LOGERR("Done sg_list dump.\n");
 			/* BUG(); ***** For now, let it fail in uissd
 			 * if it is a problem, as it might just
 			 * work
@@ -1027,7 +899,6 @@ virthba_queue_command_lck(struct scsi_cmnd *scsicmd,
 						 (u64)NULL, DONT_WAIT, "vhba");
 	if (i == 0) {
 		/* queue must be full - and we said don't wait - return busy */
-		LOGERR("uisqueue_put_cmdrsp_with_lock ****FAILED\n");
 		kfree(cmdrsp);
 		del_scsipending_entry(virthbainfo, (uintptr_t)insert_location);
 		return SCSI_MLQUEUE_DEVICE_BUSY;
@@ -1052,10 +923,9 @@ virthba_slave_alloc(struct scsi_device *scsidev)
 	struct Scsi_Host *scsihost = (struct Scsi_Host *)scsidev->host;
 
 	virthbainfo = (struct virthba_info *)scsihost->hostdata;
-	if (!virthbainfo) {
-		LOGERR("Could not find virthba_info for scsihost\n");
+	if (!virthbainfo)
 		return 0;	/* even though we errored, treat as success */
-	}
+
 	for (vdisk = &virthbainfo->head; vdisk->next; vdisk = vdisk->next) {
 		if (vdisk->next->valid &&
 		    (vdisk->next->channel == scsidev->channel) &&
@@ -1064,10 +934,8 @@ virthba_slave_alloc(struct scsi_device *scsidev)
 			return 0;
 	}
 	tmpvdisk = kzalloc(sizeof(*tmpvdisk), GFP_ATOMIC);
-	if (!tmpvdisk) {	/* error allocating */
-		LOGERR("Could not allocate memory for disk\n");
+	if (!tmpvdisk)
 		return 0;
-	}
 
 	tmpvdisk->channel = scsidev->channel;
 	tmpvdisk->id = scsidev->id;
@@ -1094,8 +962,6 @@ virthba_slave_destroy(struct scsi_device *scsidev)
 	struct Scsi_Host *scsihost = (struct Scsi_Host *)scsidev->host;
 
 	virthbainfo = (struct virthba_info *)scsihost->hostdata;
-	if (!virthbainfo)
-		LOGERR("Could not find virthba_info for scsihost\n");
 	for (vdisk = &virthbainfo->head; vdisk->next; vdisk = vdisk->next) {
 		if (vdisk->next->valid &&
 		    (vdisk->next->channel == scsidev->channel) &&
@@ -1140,19 +1006,6 @@ do_scsi_linuxstat(struct uiscmdrsp *cmdrsp, struct scsi_cmnd *scsicmd)
 
 		if (atomic_read(&vdisk->error_count) < VIRTHBA_ERROR_COUNT) {
 			atomic_inc(&vdisk->error_count);
-			LOGERR("SCSICMD ****FAILED scsicmd:0x%p op:0x%x <%d:%d:%d:%llu> 0x%x-0x%x-0x%x-0x%x-0x%x.\n",
-			       scsicmd, cmdrsp->scsi.cmnd[0],
-			       scsidev->host->host_no, scsidev->id,
-			       scsidev->channel, scsidev->lun,
-			       cmdrsp->scsi.linuxstat, sd->valid, sd->sense_key,
-			       sd->additional_sense_code,
-			       sd->additional_sense_code_qualifier);
-			if (atomic_read(&vdisk->error_count) ==
-			    VIRTHBA_ERROR_COUNT) {
-				LOGERR("Throtling SCSICMD errors disk <%d:%d:%d:%llu>\n",
-				       scsidev->host->host_no, scsidev->id,
-				       scsidev->channel, scsidev->lun);
-			}
 			atomic_set(&vdisk->ios_threshold, IOS_ERROR_THRESHOLD);
 		}
 	}
@@ -1188,7 +1041,6 @@ do_scsi_nolinuxstat(struct uiscmdrsp *cmdrsp, struct scsi_cmnd *scsicmd)
 
 		if (scsi_sg_count(scsicmd) == 0) {
 			if (scsi_bufflen(scsicmd) > 0) {
-				LOGERR("**** FAILED No scatter list for bufflen > 0\n");
 				BUG_ON(scsi_sg_count(scsicmd) ==
 				       0);
 			}
@@ -1199,8 +1051,6 @@ do_scsi_nolinuxstat(struct uiscmdrsp *cmdrsp, struct scsi_cmnd *scsicmd)
 
 		sg = scsi_sglist(scsicmd);
 		for (i = 0; i < scsi_sg_count(scsicmd); i++) {
-			DBGVER("copying OUT OF buf into 0x%p %d\n",
-			       sg_page(sg + i), sg[i].length);
 			thispage_orig = kmap_atomic(sg_page(sg + i));
 			thispage = (void *)((unsigned long)thispage_orig |
 					     sg[i].offset);
@@ -1219,7 +1069,6 @@ do_scsi_nolinuxstat(struct uiscmdrsp *cmdrsp, struct scsi_cmnd *scsicmd)
 			if (atomic_read(&vdisk->ios_threshold) > 0) {
 				atomic_dec(&vdisk->ios_threshold);
 				if (atomic_read(&vdisk->ios_threshold) == 0) {
-					LOGERR("Resetting error count for disk\n");
 					atomic_set(&vdisk->error_count, 0);
 				}
 			}
@@ -1230,8 +1079,6 @@ do_scsi_nolinuxstat(struct uiscmdrsp *cmdrsp, struct scsi_cmnd *scsicmd)
 static void
 complete_scsi_command(struct uiscmdrsp *cmdrsp, struct scsi_cmnd *scsicmd)
 {
-	DBGINF("cmdrsp: 0x%p, scsistat:0x%x.\n", cmdrsp, cmdrsp->scsi.scsistat);
-
 	/* take what we need out of cmdrsp and complete the scsicmd */
 	scsicmd->result = cmdrsp->scsi.linuxstat;
 	if (cmdrsp->scsi.linuxstat)
@@ -1239,10 +1086,8 @@ complete_scsi_command(struct uiscmdrsp *cmdrsp, struct scsi_cmnd *scsicmd)
 	else
 		do_scsi_nolinuxstat(cmdrsp, scsicmd);
 
-	if (scsicmd->scsi_done) {
-		DBGVER("Scsi_DONE\n");
+	if (scsicmd->scsi_done)
 		scsicmd->scsi_done(scsicmd);
-	}
 }
 
 static inline void
@@ -1252,7 +1097,6 @@ complete_vdiskmgmt_command(struct uiscmdrsp *cmdrsp)
 	/* wake up the error handler that is waiting for this */
 	*(int *)cmdrsp->vdiskmgmt.notifyresult = cmdrsp->vdiskmgmt.result;
 	wake_up_all((wait_queue_head_t *)cmdrsp->vdiskmgmt.notify);
-	LOGINF("set notify result to %d\n", cmdrsp->vdiskmgmt.result);
 }
 
 static inline void
@@ -1263,7 +1107,6 @@ complete_taskmgmt_command(struct uiscmdrsp *cmdrsp)
 	*(int *)cmdrsp->scsitaskmgmt.notifyresult =
 	    cmdrsp->scsitaskmgmt.result;
 	wake_up_all((wait_queue_head_t *)cmdrsp->scsitaskmgmt.notify);
-	LOGINF("set notify result to %d\n", cmdrsp->scsitaskmgmt.result);
 }
 
 static void
@@ -1319,8 +1162,7 @@ drain_queue(struct virthba_info *virthbainfo, struct chaninfo *dc,
 						    cmdrsp->vdiskmgmt.scsicmd))
 				break;
 			complete_vdiskmgmt_command(cmdrsp);
-		} else
-			LOGERR("Invalid cmdtype %d\n", cmdrsp->cmdtype);
+		}
 		/* cmdrsp is now available for reuse */
 	}
 }
@@ -1341,13 +1183,14 @@ process_incoming_rsps(void *v)
 	UIS_DAEMONIZE("vhba_incoming");
 	/* alloc once and reuse */
 	cmdrsp = kmalloc(SZ, GFP_ATOMIC);
-	if (cmdrsp == NULL) {
-		LOGERR("process_incoming_rsps ****FAILED to malloc - thread exiting\n");
+	if (!cmdrsp) {
 		complete_and_exit(&dc->threadinfo.has_stopped, 0);
 		return 0;
 	}
 	mask = ULTRA_CHANNEL_ENABLE_INTS;
 	while (1) {
+		if (kthread_should_stop())
+			break;
 		wait_event_interruptible_timeout(virthbainfo->rsp_queue,
 			 (atomic_read(&virthbainfo->interrupt_rcvd) == 1),
 				      usecs_to_jiffies(rsltq_wait_usecs));
@@ -1355,13 +1198,10 @@ process_incoming_rsps(void *v)
 		/* drain queue */
 		drain_queue(virthbainfo, dc, cmdrsp);
 		rc1 = uisqueue_interlocked_or(virthbainfo->flags_addr, mask);
-		if (dc->threadinfo.should_stop)
-			break;
 	}
 
 	kfree(cmdrsp);
 
-	DBGINF("exiting processing incoming rsps.\n");
 	complete_and_exit(&dc->threadinfo.has_stopped, 0);
 }
 
@@ -1386,7 +1226,7 @@ static ssize_t info_debugfs_read(struct file *file,
 		return -ENOMEM;
 
 	for (i = 0; i < VIRTHBASOPENMAX; i++) {
-		if (virthbas_open[i].virthbainfo == NULL)
+		if (!virthbas_open[i].virthbainfo)
 			continue;
 
 		virthbainfo = virthbas_open[i].virthbainfo;
@@ -1436,23 +1276,17 @@ static ssize_t enable_ints_write(struct file *file, const char __user *buffer,
 		return -EINVAL;
 
 	buf[count] = '\0';
-	if (copy_from_user(buf, buffer, count)) {
-		LOGERR("copy_from_user failed. buf<<%.*s>> count<<%lu>>\n",
-		       (int)count, buf, count);
+	if (copy_from_user(buf, buffer, count))
 		return -EFAULT;
-	}
 
 	i = kstrtoint(buf, 10, &new_value);
 
-	if (i != 0) {
-		LOGERR("Failed to scan value for enable_ints, buf<<%.*s>>",
-		       (int)count, buf);
+	if (i != 0)
 		return -EFAULT;
-	}
 
 	/* set all counts to new_value usually 0 */
 	for (i = 0; i < VIRTHBASOPENMAX; i++) {
-		if (virthbas_open[i].virthbainfo != NULL) {
+		if (virthbas_open[i].virthbainfo) {
 			virthbainfo = virthbas_open[i].virthbainfo;
 			features_addr =
 				&virthbainfo->chinfo.queueinfo->chan->features;
@@ -1484,17 +1318,11 @@ virthba_serverup(struct virtpci_dev *virtpcidev)
 	    (struct virthba_info *)((struct Scsi_Host *)virtpcidev->scsi.
 				     scsihost)->hostdata;
 
-	DBGINF("virtpcidev bus_no<<%d>>devNo<<%d>>", virtpcidev->bus_no,
-	       virtpcidev->device_no);
-
-	if (!virthbainfo->serverdown) {
-		DBGINF("Server up message received while server is already up.\n");
+	if (!virthbainfo->serverdown)
 		return 1;
-	}
-	if (virthbainfo->serverchangingstate) {
-		LOGERR("Server already processing change state message\n");
+
+	if (virthbainfo->serverchangingstate)
 		return 0;
-	}
 
 	virthbainfo->serverchangingstate = true;
 	/* Must transition channel to ATTACHED state BEFORE we
@@ -1508,7 +1336,6 @@ virthba_serverup(struct virtpci_dev *virtpcidev)
 	if (!uisthread_start(&virthbainfo->chinfo.threadinfo,
 			     process_incoming_rsps,
 			     virthbainfo, "vhba_incoming")) {
-		LOGERR("uisthread_start rsp ****FAILED\n");
 		return 0;
 	}
 	virthbainfo->serverdown = false;
@@ -1543,18 +1370,16 @@ virthba_serverdown_complete(struct work_struct *work)
 		switch (pendingdel->cmdtype) {
 		case CMD_SCSI_TYPE:
 			scsicmd = (struct scsi_cmnd *)pendingdel->sent;
-			scsicmd->result = (DID_RESET << 16);
+			scsicmd->result = DID_RESET << 16;
 			if (scsicmd->scsi_done)
 				scsicmd->scsi_done(scsicmd);
 			break;
 		case CMD_SCSITASKMGMT_TYPE:
 			cmdrsp = (struct uiscmdrsp *)pendingdel->sent;
-			DBGINF("cmdrsp=0x%x, notify=0x%x\n", cmdrsp,
-			       cmdrsp->scsitaskmgmt.notify);
-			*(int *)cmdrsp->scsitaskmgmt.notifyresult =
-			    TASK_MGMT_FAILED;
 			wake_up_all((wait_queue_head_t *)
 				    cmdrsp->scsitaskmgmt.notify);
+			*(int *)cmdrsp->scsitaskmgmt.notifyresult =
+				TASK_MGMT_FAILED;
 			break;
 		case CMD_VDISKMGMT_TYPE:
 			cmdrsp = (struct uiscmdrsp *)pendingdel->sent;
@@ -1564,9 +1389,7 @@ virthba_serverdown_complete(struct work_struct *work)
 				    cmdrsp->vdiskmgmt.notify);
 			break;
 		default:
-			if (pendingdel->sent != NULL)
-				LOGERR("Unknown command type: 0x%x.  Only freeing list structure.\n",
-				     pendingdel->cmdtype);
+			break;
 		}
 		pendingdel->cmdtype = 0;
 		pendingdel->sent = NULL;
@@ -1575,8 +1398,6 @@ virthba_serverdown_complete(struct work_struct *work)
 
 	virtpcidev = virthbainfo->virtpcidev;
 
-	DBGINF("virtpcidev bus_no<<%d>>devNo<<%d>>", virtpcidev->bus_no,
-	       virtpcidev->device_no);
 	virthbainfo->serverdown = true;
 	virthbainfo->serverchangingstate = false;
 	/* Return the ServerDown response to Command */
@@ -1594,19 +1415,12 @@ virthba_serverdown(struct virtpci_dev *virtpcidev, u32 state)
 	    (struct virthba_info *)((struct Scsi_Host *)virtpcidev->scsi.
 				     scsihost)->hostdata;
 
-	DBGINF("virthba_serverdown");
-	DBGINF("virtpcidev bus_no<<%d>>devNo<<%d>>", virtpcidev->bus_no,
-	       virtpcidev->device_no);
-
 	if (!virthbainfo->serverdown && !virthbainfo->serverchangingstate) {
 		virthbainfo->serverchangingstate = true;
 		queue_work(virthba_serverdown_workqueue,
 			   &virthbainfo->serverdown_completion);
 	} else if (virthbainfo->serverchangingstate) {
-		LOGERR("Server already processing change state message\n");
 		stat = 0;
-	} else {
-		LOGERR("Server already down, but another server down message received.");
 	}
 
 	return stat;
@@ -1619,7 +1433,6 @@ virthba_serverdown(struct virtpci_dev *virtpcidev, u32 state)
 static int __init
 virthba_parse_line(char *str)
 {
-	DBGINF("In virthba_parse_line %s\n", str);
 	return 1;
 }
 
@@ -1629,14 +1442,13 @@ virthba_parse_options(char *line)
 	char *next = line;
 
 	POSTCODE_LINUX_2(VHBA_CREATE_ENTRY_PC, POSTCODE_SEVERITY_INFO);
-	if (line == NULL || !*line)
+	if (!line || !*line)
 		return;
-	while ((line = next) != NULL) {
+	while ((line = next)) {
 		next = strchr(line, ' ');
-		if (next != NULL)
+		if (next)
 			*next++ = 0;
-		if (!virthba_parse_line(line))
-			DBGINF("Unknown option '%s'\n", line);
+		virthba_parse_line(line);
 	}
 
 	POSTCODE_LINUX_2(VHBA_CREATE_EXIT_PC, POSTCODE_SEVERITY_INFO);
@@ -1651,14 +1463,11 @@ virthba_mod_init(void)
 	if (!unisys_spar_platform)
 		return -ENODEV;
 
-	LOGINF("Entering virthba_mod_init...\n");
-
 	POSTCODE_LINUX_2(VHBA_CREATE_ENTRY_PC, POSTCODE_SEVERITY_INFO);
 	virthba_parse_options(virthba_options);
 
 	error = virtpci_register_driver(&virthba_driver);
 	if (error < 0) {
-		LOGERR("register ****FAILED 0x%x\n", error);
 		POSTCODE_LINUX_3(VHBA_CREATE_FAILURE_PC, error,
 				 POSTCODE_SEVERITY_ERR);
 	} else {
@@ -1681,8 +1490,7 @@ virthba_mod_init(void)
 		/* Initialize the serverdown workqueue */
 		virthba_serverdown_workqueue =
 		    create_singlethread_workqueue("virthba_serverdown");
-		if (virthba_serverdown_workqueue == NULL) {
-			LOGERR("**** FAILED virthba_serverdown_workqueue creation\n");
+		if (!virthba_serverdown_workqueue) {
 			POSTCODE_LINUX_2(VHBA_CREATE_FAILURE_PC,
 					 POSTCODE_SEVERITY_ERR);
 			error = -1;
@@ -1690,7 +1498,6 @@ virthba_mod_init(void)
 	}
 
 	POSTCODE_LINUX_2(VHBA_CREATE_EXIT_PC, POSTCODE_SEVERITY_INFO);
-	LOGINF("Leaving virthba_mod_init\n");
 	return error;
 }
 
@@ -1740,8 +1547,6 @@ static DEVICE_ATTRIBUTE *virthba_shost_attrs[] = {
 static void __exit
 virthba_mod_exit(void)
 {
-	LOGINF("entering virthba_mod_exit...\n");
-
 	virtpci_unregister_driver(&virthba_driver);
 	/* unregister is going to call virthba_remove */
 	/* destroy serverdown completion workqueue */
@@ -1751,7 +1556,6 @@ virthba_mod_exit(void)
 	}
 
 	debugfs_remove_recursive(virthba_debugfs_dir);
-	LOGINF("Leaving virthba_mod_exit\n");
 }
 
 /* specify function to be run at module insertion time */
diff --git a/drivers/staging/unisys/virtpci/Kconfig b/drivers/staging/unisys/virtpci/Kconfig
index e59efcb..6d19482 100644
--- a/drivers/staging/unisys/virtpci/Kconfig
+++ b/drivers/staging/unisys/virtpci/Kconfig
@@ -4,7 +4,7 @@
 
 config UNISYS_VIRTPCI
 	tristate "Unisys virtpci driver"
-	depends on UNISYSSPAR && UNISYS_UISLIB
+	select UNISYS_UISLIB
 	---help---
 	If you say Y here, you will enable the Unisys virtpci driver.
 
diff --git a/drivers/staging/unisys/virtpci/virtpci.c b/drivers/staging/unisys/virtpci/virtpci.c
index 8fdfd6f..d5ad017 100644
--- a/drivers/staging/unisys/virtpci/virtpci.c
+++ b/drivers/staging/unisys/virtpci/virtpci.c
@@ -21,7 +21,6 @@
 #ifdef CONFIG_MODVERSIONS
 #include <config/modversions.h>
 #endif
-#include "uniklog.h"
 #include "diagnostics/appos_subsystems.h"
 #include "uisutils.h"
 #include "vbuschannel.h"
@@ -187,13 +186,11 @@ static int write_vbus_chp_info(struct spar_vbus_channel_protocol *chan,
 {
 	int off;
 
-	if (!chan) {
-		LOGERR("vbus channel not present");
+	if (!chan)
 		return -1;
-	}
+
 	off = sizeof(struct channel_header) + chan->hdr_info.chp_info_offset;
 	if (chan->hdr_info.chp_info_offset == 0) {
-		LOGERR("vbus channel not used, because chp_info_offset == 0");
 		return -1;
 	}
 	memcpy(((u8 *)(chan)) + off, info, sizeof(*info));
@@ -206,15 +203,12 @@ static int write_vbus_bus_info(struct spar_vbus_channel_protocol *chan,
 {
 	int off;
 
-	if (!chan) {
-		LOGERR("vbus channel not present");
+	if (!chan)
 		return -1;
-	}
+
 	off = sizeof(struct channel_header) + chan->hdr_info.bus_info_offset;
-	if (chan->hdr_info.bus_info_offset == 0) {
-		LOGERR("vbus channel not used, because bus_info_offset == 0");
+	if (chan->hdr_info.bus_info_offset == 0)
 		return -1;
-	}
 	memcpy(((u8 *)(chan)) + off, info, sizeof(*info));
 	return 0;
 }
@@ -228,18 +222,16 @@ write_vbus_dev_info(struct spar_vbus_channel_protocol *chan,
 {
 	int off;
 
-	if (!chan) {
-		LOGERR("vbus channel not present");
+	if (!chan)
 		return -1;
-	}
+
 	off =
 	    (sizeof(struct channel_header) +
 	     chan->hdr_info.dev_info_offset) +
 	    (chan->hdr_info.device_info_struct_bytes * devix);
-	if (chan->hdr_info.dev_info_offset == 0) {
-		LOGERR("vbus channel not used, because dev_info_offset == 0");
+	if (chan->hdr_info.dev_info_offset == 0)
 		return -1;
-	}
+
 	memcpy(((u8 *)(chan)) + off, info, sizeof(*info));
 	return 0;
 }
@@ -271,7 +263,6 @@ static int add_vbus(struct add_vbus_guestpart *addparams)
 	 */
 	ret = device_register(vbus);
 	if (ret) {
-		LOGERR("device_register FAILED:%d\n", ret);
 		POSTCODE_LINUX_2(VPCI_CREATE_FAILURE_PC, POSTCODE_SEVERITY_ERR);
 		return 0;
 	}
@@ -279,8 +270,6 @@ static int add_vbus(struct add_vbus_guestpart *addparams)
 			    &chipset_driver_info);
 	write_vbus_bus_info(vbus->platform_data /* chanptr */,
 			    &bus_driver_info);
-	LOGINF("Added vbus %d; device %s created successfully\n",
-	       addparams->bus_no, BUS_ID(vbus));
 	POSTCODE_LINUX_2(VPCI_CREATE_EXIT_PC, POSTCODE_SEVERITY_INFO);
 	return 1;
 }
@@ -312,7 +301,6 @@ static int add_vhba(struct add_virt_guestpart *addparams)
 	POSTCODE_LINUX_2(VPCI_CREATE_ENTRY_PC, POSTCODE_SEVERITY_INFO);
 	if (!WAIT_FOR_IO_CHANNEL
 	    ((struct spar_io_channel_protocol __iomem *)addparams->chanptr)) {
-		LOGERR("Timed out.  Channel not ready\n");
 		POSTCODE_LINUX_2(VPCI_CREATE_FAILURE_PC, POSTCODE_SEVERITY_ERR);
 		return 0;
 	}
@@ -323,19 +311,11 @@ static int add_vhba(struct add_virt_guestpart *addparams)
 	sprintf(busid, "vbus%d", addparams->bus_no);
 	vbus = bus_find_device(&virtpci_bus_type, NULL,
 			       (void *)busid, match_busid);
-	if (!vbus) {
-		LOGERR("**** FAILED to find vbus %s\n", busid);
+	if (!vbus)
 		return 0;
-	}
 
-	LOGINF("Adding vhba wwnn:%x:%x config:%d-%d-%d-%d chanptr:%p\n",
-	       scsi.wwnn.wwnn1, scsi.wwnn.wwnn2,
-	       scsi.max.max_channel, scsi.max.max_id, scsi.max.max_lun,
-	       scsi.max.cmd_per_lun, addparams->chanptr);
 	i = virtpci_device_add(vbus, VIRTHBA_TYPE, addparams, &scsi, NULL);
 	if (i) {
-		LOGINF("Added vhba wwnn:%x:%x chanptr:%p\n", scsi.wwnn.wwnn1,
-		       scsi.wwnn.wwnn2, addparams->chanptr);
 		POSTCODE_LINUX_3(VPCI_CREATE_EXIT_PC, i,
 				 POSTCODE_SEVERITY_INFO);
 	}
@@ -375,7 +355,6 @@ add_vnic(struct add_virt_guestpart *addparams)
 	POSTCODE_LINUX_2(VPCI_CREATE_ENTRY_PC, POSTCODE_SEVERITY_INFO);
 	if (!WAIT_FOR_IO_CHANNEL
 	    ((struct spar_io_channel_protocol __iomem *)addparams->chanptr)) {
-		LOGERR("Timed out, channel not ready\n");
 		POSTCODE_LINUX_2(VPCI_CREATE_FAILURE_PC, POSTCODE_SEVERITY_ERR);
 		return 0;
 	}
@@ -386,20 +365,11 @@ add_vnic(struct add_virt_guestpart *addparams)
 	sprintf(busid, "vbus%d", addparams->bus_no);
 	vbus = bus_find_device(&virtpci_bus_type, NULL,
 			       (void *)busid, match_busid);
-	if (!vbus) {
-		LOGERR("**** FAILED to find vbus %s\n", busid);
+	if (!vbus)
 		return 0;
-	}
 
-	LOGINF("Adding vnic macaddr:%02x:%02x:%02x:%02x:%02x:%02x rcvbufs:%d mtu:%d chanptr:%p%pUL\n",
-	       net.mac_addr[0], net.mac_addr[1], net.mac_addr[2],
-	       net.mac_addr[3], net.mac_addr[4], net.mac_addr[5],
-	       net.num_rcv_bufs, net.mtu, addparams->chanptr, &net.zone_uuid);
 	i = virtpci_device_add(vbus, VIRTNIC_TYPE, addparams, NULL, &net);
 	if (i) {
-		LOGINF("Added vnic macaddr:%02x:%02x:%02x:%02x:%02x:%02x\n",
-		       net.mac_addr[0], net.mac_addr[1], net.mac_addr[2],
-		       net.mac_addr[3], net.mac_addr[4], net.mac_addr[5]);
 		POSTCODE_LINUX_3(VPCI_CREATE_EXIT_PC, i,
 				 POSTCODE_SEVERITY_INFO);
 		return 1;
@@ -420,34 +390,24 @@ delete_vbus(struct del_vbus_guestpart *delparams)
 	sprintf(busid, "vbus%d", delparams->bus_no);
 	vbus = bus_find_device(&virtpci_bus_type, NULL,
 			       (void *)busid, match_busid);
-	if (!vbus) {
-		LOGERR("**** FAILED to find vbus %s\n", busid);
+	if (!vbus)
 		return 0;
-	}
 
 	/* ensure that bus has no devices? -- TBD */
-	LOGINF("Deleting %s\n", BUS_ID(vbus));
-	if (delete_vbus_device(vbus, NULL))
-		return 0;	/* failure */
-	LOGINF("Deleted vbus %d\n", delparams->bus_no);
 	return 1;
 }
 
 static int
 delete_vbus_device(struct device *vbus, void *data)
 {
-	int checkforroot = (data != NULL);
 	struct device *dev = &virtpci_rootbus_device;
 
-	if ((checkforroot) && match_busid(vbus, (void *)BUS_ID(dev))) {
+	if ((data) && match_busid(vbus, (void *)BUS_ID(dev))) {
 		/* skip it - don't delete root bus */
-		LOGINF("skipping root bus\n");
 		return 0;	/* pretend no error */
 	}
-	LOGINF("Calling unregister for %s\n", BUS_ID(vbus));
 	device_unregister(vbus);
 	kfree(vbus);
-	LOGINF("VBus unregister and freed\n");
 	return 0;		/* no error */
 }
 
@@ -461,12 +421,8 @@ static int pause_vhba(struct pause_virt_guestpart *pauseparams)
 
 	GET_SCSIADAPINFO_FROM_CHANPTR(pauseparams->chanptr);
 
-	LOGINF("Pausing vhba wwnn:%x:%x\n", scsi.wwnn.wwnn1, scsi.wwnn.wwnn2);
 	i = virtpci_device_serverdown(NULL /*no parent bus */, VIRTHBA_TYPE,
 				      &scsi.wwnn, NULL);
-	if (i)
-		LOGINF("Paused vhba wwnn:%x:%x\n", scsi.wwnn.wwnn1,
-		       scsi.wwnn.wwnn2);
 	return i;
 }
 
@@ -480,16 +436,8 @@ static int pause_vnic(struct pause_virt_guestpart *pauseparams)
 
 	GET_NETADAPINFO_FROM_CHANPTR(pauseparams->chanptr);
 
-	LOGINF("Pausing vnic macaddr:%02x:%02x:%02x:%02x:%02x:%02x\n",
-	       net.mac_addr[0], net.mac_addr[1], net.mac_addr[2],
-	       net.mac_addr[3], net.mac_addr[4], net.mac_addr[5]);
 	i = virtpci_device_serverdown(NULL /*no parent bus */, VIRTNIC_TYPE,
 				      NULL, net.mac_addr);
-	if (i) {
-		LOGINF(" Paused vnic macaddr:%02x:%02x:%02x:%02x:%02x:%02x\n",
-		       net.mac_addr[0], net.mac_addr[1], net.mac_addr[2],
-		       net.mac_addr[3], net.mac_addr[4], net.mac_addr[5]);
-	}
 	return i;
 }
 
@@ -503,12 +451,8 @@ static int resume_vhba(struct resume_virt_guestpart *resumeparams)
 
 	GET_SCSIADAPINFO_FROM_CHANPTR(resumeparams->chanptr);
 
-	LOGINF("Resuming vhba wwnn:%x:%x\n", scsi.wwnn.wwnn1, scsi.wwnn.wwnn2);
 	i = virtpci_device_serverup(NULL /*no parent bus */, VIRTHBA_TYPE,
 				    &scsi.wwnn, NULL);
-	if (i)
-		LOGINF("Resumed vhba wwnn:%x:%x\n", scsi.wwnn.wwnn1,
-		       scsi.wwnn.wwnn2);
 	return i;
 }
 
@@ -523,16 +467,8 @@ resume_vnic(struct resume_virt_guestpart *resumeparams)
 
 	GET_NETADAPINFO_FROM_CHANPTR(resumeparams->chanptr);
 
-	LOGINF("Resuming vnic macaddr:%02x:%02x:%02x:%02x:%02x:%02x\n",
-	       net.mac_addr[0], net.mac_addr[1], net.mac_addr[2],
-	       net.mac_addr[3], net.mac_addr[4], net.mac_addr[5]);
 	i = virtpci_device_serverup(NULL /*no parent bus */, VIRTNIC_TYPE,
 				    NULL, net.mac_addr);
-	if (i) {
-		LOGINF(" Resumed vnic macaddr:%02x:%02x:%02x:%02x:%02x:%02x\n",
-		       net.mac_addr[0], net.mac_addr[1], net.mac_addr[2],
-		       net.mac_addr[3], net.mac_addr[4], net.mac_addr[5]);
-	}
 	return i;
 }
 
@@ -546,12 +482,9 @@ static int delete_vhba(struct del_virt_guestpart *delparams)
 
 	GET_SCSIADAPINFO_FROM_CHANPTR(delparams->chanptr);
 
-	LOGINF("Deleting vhba wwnn:%x:%x\n", scsi.wwnn.wwnn1, scsi.wwnn.wwnn2);
 	i = virtpci_device_del(NULL /*no parent bus */, VIRTHBA_TYPE,
 			       &scsi.wwnn, NULL);
 	if (i) {
-		LOGINF("Deleted vhba wwnn:%x:%x\n", scsi.wwnn.wwnn1,
-		       scsi.wwnn.wwnn2);
 		return 1;
 	}
 	return 0;
@@ -567,23 +500,13 @@ static int delete_vnic(struct del_virt_guestpart *delparams)
 
 	GET_NETADAPINFO_FROM_CHANPTR(delparams->chanptr);
 
-	LOGINF("Deleting vnic macaddr:%02x:%02x:%02x:%02x:%02x:%02x\n",
-	       net.mac_addr[0], net.mac_addr[1], net.mac_addr[2],
-	       net.mac_addr[3], net.mac_addr[4], net.mac_addr[5]);
 	i = virtpci_device_del(NULL /*no parent bus */, VIRTNIC_TYPE, NULL,
 			       net.mac_addr);
-	if (i) {
-		LOGINF("Deleted vnic macaddr:%02x:%02x:%02x:%02x:%02x:%02x\n",
-		       net.mac_addr[0], net.mac_addr[1], net.mac_addr[2],
-		       net.mac_addr[3], net.mac_addr[4], net.mac_addr[5]);
-	}
 	return i;
 }
 
 #define DELETE_ONE_VPCIDEV(vpcidev) { \
-	LOGINF("calling device_unregister:%p\n", &vpcidev->generic_dev); \
 	device_unregister(&vpcidev->generic_dev); \
-	LOGINF("Deleted %p\n", vpcidev); \
 	kfree(vpcidev); \
 }
 
@@ -610,12 +533,10 @@ static void delete_all(void)
 		tmpvpcidev = nextvpcidev;
 		count++;
 	}
-	LOGINF("Deleted %d vhbas/vnics.\n", count);
 
 	/* now delete each vbus */
-	if (bus_for_each_dev
-	    (&virtpci_bus_type, NULL, (void *)1, delete_vbus_device))
-		LOGERR("delete of all vbus failed\n");
+	bus_for_each_dev(&virtpci_bus_type, NULL, (void *)1,
+			 delete_vbus_device);
 }
 
 /* deletes all vnics or vhbas
@@ -632,24 +553,14 @@ static int delete_all_virt(enum virtpci_dev_type devtype,
 	sprintf(busid, "vbus%d", delparams->bus_no);
 	vbus = bus_find_device(&virtpci_bus_type, NULL,
 			       (void *)busid, match_busid);
-	if (!vbus) {
-		LOGERR("**** FAILED to find vbus %s\n", busid);
+	if (!vbus)
 		return 0;
-	}
 
-	if ((devtype != VIRTHBA_TYPE) && (devtype != VIRTNIC_TYPE)) {
-		LOGERR("**** FAILED to delete all devices; devtype:%d not vhba:%d or vnic:%d\n",
-		       devtype, VIRTHBA_TYPE, VIRTNIC_TYPE);
+	if ((devtype != VIRTHBA_TYPE) && (devtype != VIRTNIC_TYPE))
 		return 0;
-	}
 
-	LOGINF("Deleting all %s in vbus %s\n",
-	       devtype == VIRTHBA_TYPE ? "vhbas" : "vnics", busid);
 	/* delete all vhbas/vnics */
 	i = virtpci_device_del(vbus, devtype, NULL, NULL);
-	if (i > 0)
-		LOGINF("Deleted %d %s\n", i,
-		       devtype == VIRTHBA_TYPE ? "vhbas" : "vnics");
 	return 1;
 }
 
@@ -684,7 +595,6 @@ static int virtpci_ctrlchan_func(struct guest_msgs *msg)
 	case GUEST_RESUME_VNIC:
 		return resume_vnic(&msg->resume_vnic);
 	default:
-		LOGERR("invalid message type %d.\n", msg->msgtype);
 		return 0;
 	}
 }
@@ -708,9 +618,6 @@ virtpci_match_device(const struct pci_device_id *ids,
 		     const struct virtpci_dev *dev)
 {
 	while (ids->vendor || ids->subvendor || ids->class_mask) {
-		DBGINF("ids->vendor:%x dev->vendor:%x ids->device:%x dev->device:%x\n",
-		       ids->vendor, dev->vendor, ids->device, dev->device);
-
 		if ((ids->vendor == dev->vendor) &&
 		    (ids->device == dev->device))
 			return ids;
@@ -731,20 +638,15 @@ static int virtpci_bus_match(struct device *dev, struct device_driver *drv)
 	struct virtpci_driver *virtpcidrv = driver_to_virtpci_driver(drv);
 	int match = 0;
 
-	DBGINF("In virtpci_bus_match dev->bus_id:%s drv->name:%s\n",
-	       dev->bus_id, drv->name);
-
 	/* check ids list for a match */
 	if (virtpci_match_device(virtpcidrv->id_table, virtpcidev))
 		match = 1;
 
-	DBGINF("returning match:%d\n", match);
 	return match;		/* 0 - no match; 1 - yes it matches */
 }
 
 static int virtpci_uevent(struct device *dev, struct kobj_uevent_env *env)
 {
-	DBGINF("In virtpci_hotplug\n");
 	/* add variables to the environment prior to the generation of
 	 * hotplug events to user space
 	 */
@@ -766,24 +668,19 @@ static void fix_vbus_dev_info(struct device *dev, int dev_no, int dev_type,
 	struct ultra_vbus_deviceinfo dev_info;
 	const char *stype;
 
-	if (!dev) {
-		LOGERR("%s dev is NULL", __func__);
+	if (!dev)
 		return;
-	}
-	if (!virtpcidrv) {
-		LOGERR("%s driver is NULL", __func__);
+	if (!virtpcidrv)
 		return;
-	}
+
 	vbus = dev->parent;
-	if (!vbus) {
-		LOGERR("%s dev has no parent bus", __func__);
+	if (!vbus)
 		return;
-	}
+
 	chan = vbus->platform_data;
-	if (!chan) {
-		LOGERR("%s dev bus has no channel", __func__);
+	if (!chan)
 		return;
-	}
+
 	switch (dev_type) {
 	case PCI_DEVICE_ID_VIRTHBA:
 		stype = "vHBA";
@@ -820,8 +717,6 @@ static int virtpci_device_probe(struct device *dev)
 	const struct pci_device_id *id;
 	int error = 0;
 
-	LOGINF("In virtpci_device_probe dev:%p virtpcidev:%p virtpcidrv:%p\n",
-	       dev, virtpcidev, virtpcidrv);	/* VERBOSE/DEBUG ? */
 	POSTCODE_LINUX_2(VPCI_PROBE_ENTRY_PC, POSTCODE_SEVERITY_INFO);
 	/* static match and static probe vs dynamic match & dynamic
 	 * probe - do we care?.
@@ -866,9 +761,6 @@ static int virtpci_device_remove(struct device *dev_)
 	struct virtpci_dev *virtpcidev = device_to_virtpci_dev(dev_);
 	struct virtpci_driver *virtpcidrv = virtpcidev->mydriver;
 
-	LOGINF("In virtpci_device_remove bus_id:%s dev_:%p virtpcidev:%p dev->driver:%p drivername:%s\n",
-	       BUS_ID(dev_), dev_, virtpcidev, dev_->driver,
-	       dev_->driver->name);	/* VERBOSE/DEBUG */
 	if (virtpcidrv) {
 		/* TEMP: assuming we have only one such driver for now */
 		if (virtpcidrv->remove)
@@ -876,10 +768,7 @@ static int virtpci_device_remove(struct device *dev_)
 		virtpcidev->mydriver = NULL;
 	}
 
-	DBGINF("calling putdevice\n");
 	put_device(dev_);
-
-	DBGINF("Leaving\n");
 	return 0;
 }
 
@@ -889,11 +778,6 @@ static int virtpci_device_remove(struct device *dev_)
 
 static void virtpci_bus_release(struct device *dev)
 {
-	/* this function is called when the last reference to the
-	 * device is removed
-	 */
-	DBGINF("In virtpci_bus_release\n");
-	/* what else is supposed to happen here? */
 }
 
 /*****************************************************/
@@ -915,14 +799,9 @@ static int virtpci_device_add(struct device *parentbus, int devtype,
 	struct spar_io_channel_protocol __iomem *io_chan = NULL;
 	struct device *dev;
 
-	LOGINF("virtpci_device_add parentbus:%p chanptr:%p\n", parentbus,
-	       addparams->chanptr);
-
 	POSTCODE_LINUX_2(VPCI_CREATE_ENTRY_PC, POSTCODE_SEVERITY_INFO);
 
 	if ((devtype != VIRTHBA_TYPE) && (devtype != VIRTNIC_TYPE)) {
-		LOGERR("**** FAILED to add device; devtype:%d not vhba:%d or vnic:%d\n",
-		       devtype, VIRTHBA_TYPE, VIRTNIC_TYPE);
 		POSTCODE_LINUX_3(VPCI_CREATE_FAILURE_PC, devtype,
 				 POSTCODE_SEVERITY_ERR);
 		return 0;
@@ -930,8 +809,7 @@ static int virtpci_device_add(struct device *parentbus, int devtype,
 
 	/* add a Virtual Device */
 	virtpcidev = kzalloc(sizeof(*virtpcidev), GFP_ATOMIC);
-	if (virtpcidev == NULL) {
-		LOGERR("can't add device - malloc FALLED\n");
+	if (!virtpcidev) {
 		POSTCODE_LINUX_2(MALLOC_FAILURE_PC, POSTCODE_SEVERITY_ERR);
 		return 0;
 	}
@@ -993,7 +871,6 @@ static int virtpci_device_add(struct device *parentbus, int devtype,
 		 */
 		write_unlock_irqrestore(&vpcidev_list_lock, flags);
 		kfree(virtpcidev);
-		LOGERR("**** FAILED vhba/vnic already exists in the list\n");
 		POSTCODE_LINUX_2(VPCI_CREATE_FAILURE_PC, POSTCODE_SEVERITY_ERR);
 		return 0;
 	}
@@ -1024,8 +901,6 @@ static int virtpci_device_add(struct device *parentbus, int devtype,
 	* list. Otherwise, a device_unregister from this function can
 	* cause a "scheduling while atomic".
 	*/
-	DBGINF("registering device:%p with bus_id:%s\n",
-	       &virtpcidev->generic_dev, virtpcidev->generic_dev.bus_id);
 	ret = device_register(&virtpcidev->generic_dev);
 	/* NOTE: THIS IS CALLING HOTPLUG virtpci_hotplug!!!
 	 * This call to device_register results in virtpci_bus_match
@@ -1037,7 +912,6 @@ static int virtpci_device_add(struct device *parentbus, int devtype,
 	 * virtpci_device_probe is successful
 	 */
 	if (ret) {
-		LOGERR("device_register returned %d\n", ret);
 		dev = &virtpcidev->generic_dev;
 		SPAR_CHANNEL_CLIENT_TRANSITION(addparams->chanptr,
 					       BUS_ID(dev),
@@ -1060,10 +934,6 @@ static int virtpci_device_add(struct device *parentbus, int devtype,
 		return 0;
 	}
 
-	LOGINF("Added %s:%d:%d &virtpcidev->generic_dev:%p\n",
-	       (devtype == VIRTHBA_TYPE) ? "virthba" : "virtnic",
-	       addparams->bus_no, addparams->device_no,
-	       &virtpcidev->generic_dev);
 	POSTCODE_LINUX_2(VPCI_CREATE_EXIT_PC, POSTCODE_SEVERITY_INFO);
 	return 1;
 }
@@ -1080,11 +950,8 @@ static int virtpci_device_serverdown(struct device *parentbus,
 	unsigned long flags;
 	int rc = 0;
 
-	if ((devtype != VIRTHBA_TYPE) && (devtype != VIRTNIC_TYPE)) {
-		LOGERR("**** FAILED to pause device; devtype:%d not vhba:%d or vnic:%d\n",
-		       devtype, VIRTHBA_TYPE, VIRTNIC_TYPE);
+	if ((devtype != VIRTHBA_TYPE) && (devtype != VIRTNIC_TYPE))
 		return 0;
-	}
 
 	/* find the vhba or vnic in virtpci device list */
 	write_lock_irqsave(&vpcidev_list_lock, flags);
@@ -1119,10 +986,8 @@ static int virtpci_device_serverdown(struct device *parentbus,
 	}
 	write_unlock_irqrestore(&vpcidev_list_lock, flags);
 
-	if (!found) {
-		LOGERR("**** FAILED to find vhba/vnic in the list\n");
+	if (!found)
 		return 0;
-	}
 
 	return rc;
 }
@@ -1139,11 +1004,9 @@ static int virtpci_device_serverup(struct device *parentbus,
 	unsigned long flags;
 	int rc = 0;
 
-	if ((devtype != VIRTHBA_TYPE) && (devtype != VIRTNIC_TYPE)) {
-		LOGERR("**** FAILED to resume device; devtype:%d not vhba:%d or vnic:%d\n",
-		       devtype, VIRTHBA_TYPE, VIRTNIC_TYPE);
+	if ((devtype != VIRTHBA_TYPE) && (devtype != VIRTNIC_TYPE))
 		return 0;
-	}
+
 
 	/* find the vhba or vnic in virtpci device list */
 	write_lock_irqsave(&vpcidev_list_lock, flags);
@@ -1187,10 +1050,8 @@ static int virtpci_device_serverup(struct device *parentbus,
 
 	write_unlock_irqrestore(&vpcidev_list_lock, flags);
 
-	if (!found) {
-		LOGERR("**** FAILED to find vhba/vnic in the list\n");
+	if (!found)
 		return 0;
-	}
 
 	return rc;
 }
@@ -1209,17 +1070,14 @@ static int virtpci_device_del(struct device *parentbus,
 	continue; \
 }
 
-	if ((devtype != VIRTHBA_TYPE) && (devtype != VIRTNIC_TYPE)) {
-		LOGERR("**** FAILED to delete device; devtype:%d not vhba:%d or vnic:%d\n",
-		       devtype, VIRTHBA_TYPE, VIRTNIC_TYPE);
+	if ((devtype != VIRTHBA_TYPE) && (devtype != VIRTNIC_TYPE))
 		return 0;
-	}
 
 	/* see if we are to delete all - NOTE: all implies we have a
 	 * valid parentbus
 	 */
-	all = ((devtype == VIRTHBA_TYPE) && (wwnn == NULL)) ||
-	    ((devtype == VIRTNIC_TYPE) && (macaddr == NULL));
+	all = ((devtype == VIRTHBA_TYPE) && (!wwnn)) ||
+	    ((devtype == VIRTNIC_TYPE) && (!macaddr));
 
 	/* find all the vhba or vnic or both in virtpci device list
 	* keep list of ones we are deleting so we can call
@@ -1280,10 +1138,8 @@ static int virtpci_device_del(struct device *parentbus,
 	}
 	write_unlock_irqrestore(&vpcidev_list_lock, flags);
 
-	if (!all && (count == 0)) {
-		LOGERR("**** FAILED to find vhba/vnic in the list\n");
+	if (!all && (count == 0))
 		return 0;
-	}
 
 	/* now delete each one from delete list */
 	while (dellist) {
@@ -1303,7 +1159,6 @@ static void virtpci_device_release(struct device *dev_)
 	/* this function is called when the last reference to the
 	 * device is removed
 	 */
-	LOGINF("In virtpci_device_release:%p - NOT YET IMPLEMENTED\n", dev_);
 }
 
 /*****************************************************/
@@ -1324,8 +1179,6 @@ static ssize_t virtpci_driver_attr_show(struct kobject *kobj,
 	struct driver_private *dprivate = to_driver(kobj);
 	struct device_driver *driver = dprivate->driver;
 
-	DBGINF("In virtpci_driver_attr_show driver->name:%s\n",	driver->name);
-
 	if (dattr->show)
 		ret = dattr->show(driver, buf);
 
@@ -1342,8 +1195,6 @@ static ssize_t virtpci_driver_attr_store(struct kobject *kobj,
 	struct driver_private *dprivate = to_driver(kobj);
 	struct device_driver *driver = dprivate->driver;
 
-	DBGINF("In virtpci_driver_attr_store driver->name:%s\n", driver->name);
-
 	if (dattr->store)
 		ret = dattr->store(driver, buf, count);
 
@@ -1355,12 +1206,8 @@ int virtpci_register_driver(struct virtpci_driver *drv)
 {
 	int result = 0;
 
-	DBGINF("In virtpci_register_driver\n");
-
-	if (drv->id_table == NULL) {
-		LOGERR("id_table missing\n");
+	if (!drv->id_table)
 		return 1;
-	}
 	/* initialize core driver fields needed to call driver_register */
 	drv->core_driver.name = drv->name;	/* name of driver in sysfs */
 	drv->core_driver.bus = &virtpci_bus_type;	/* type of bus this
@@ -1389,7 +1236,6 @@ EXPORT_SYMBOL_GPL(virtpci_register_driver);
 
 void virtpci_unregister_driver(struct virtpci_driver *drv)
 {
-	DBGINF("In virtpci_unregister_driver drv:%p\n", drv);
 	driver_unregister(&drv->core_driver);
 	/* driver_unregister calls bus_remove_driver
 	 * bus_remove_driver calls device_detach
@@ -1399,7 +1245,6 @@ void virtpci_unregister_driver(struct virtpci_driver *drv)
 	 * virtpci_device_remove
 	 * virtpci_device_remove calls virthba_remove
 	 */
-	DBGINF("Leaving\n");
 }
 EXPORT_SYMBOL_GPL(virtpci_unregister_driver);
 
@@ -1442,9 +1287,8 @@ static ssize_t info_debugfs_read(struct file *file, char __user *buf,
 	printparam.str_pos = &str_pos;
 	printparam.buf = vbuf;
 	printparam.len = &len;
-	if (bus_for_each_dev(&virtpci_bus_type, NULL,
-			     (void *)&printparam, print_vbus))
-		LOGERR("Failed to find bus\n");
+	bus_for_each_dev(&virtpci_bus_type, NULL, (void *)&printparam,
+			 print_vbus);
 
 	str_pos += scnprintf(vbuf + str_pos, len - str_pos,
 			"\n Virtual PCI devices\n");
@@ -1464,15 +1308,10 @@ static ssize_t info_debugfs_read(struct file *file, char __user *buf,
 					tmpvpcidev->scsi.max.cmd_per_lun);
 		} else {
 			str_pos += scnprintf(vbuf + str_pos, len - str_pos,
-					"[%d:%d] VNic:%02x:%02x:%02x:%02x:%02x:%02x num_rcv_bufs:%d mtu:%d",
+					"[%d:%d] VNic:%pM num_rcv_bufs:%d mtu:%d",
 					tmpvpcidev->bus_no,
 					tmpvpcidev->device_no,
-					tmpvpcidev->net.mac_addr[0],
-					tmpvpcidev->net.mac_addr[1],
-					tmpvpcidev->net.mac_addr[2],
-					tmpvpcidev->net.mac_addr[3],
-					tmpvpcidev->net.mac_addr[4],
-					tmpvpcidev->net.mac_addr[5],
+					tmpvpcidev->net.mac_addr,
 					tmpvpcidev->net.num_rcv_bufs,
 					tmpvpcidev->net.mtu);
 		}
@@ -1507,58 +1346,44 @@ static int __init virtpci_mod_init(void)
 	 * drivers directory
 	 */
 	if (ret) {
-		LOGERR("bus_register ****FAILED:%d\n", ret);
 		POSTCODE_LINUX_3(VPCI_CREATE_FAILURE_PC, ret,
 				 POSTCODE_SEVERITY_ERR);
 		return ret;
 	}
-	DBGINF("bus_register successful\n");
 	bus_device_info_init(&bus_driver_info, "clientbus", "virtpci",
 			     VERSION, NULL);
 
 	/* create a root bus used to parent all the virtpci buses. */
 	ret = device_register(&virtpci_rootbus_device);
 	if (ret) {
-		LOGERR("device_register FAILED:%d\n", ret);
 		bus_unregister(&virtpci_bus_type);
 		POSTCODE_LINUX_3(VPCI_CREATE_FAILURE_PC, ret,
 				 POSTCODE_SEVERITY_ERR);
 		return ret;
 	}
-	DBGINF("device_register successful ret:%x\n", ret);
 
 	if (!uisctrl_register_req_handler(2, (void *)&virtpci_ctrlchan_func,
 					  &chipset_driver_info)) {
-		LOGERR("uisctrl_register_req_handler ****FAILED.\n");
 		POSTCODE_LINUX_2(VPCI_CREATE_FAILURE_PC, POSTCODE_SEVERITY_ERR);
 		device_unregister(&virtpci_rootbus_device);
 		bus_unregister(&virtpci_bus_type);
 		return -1;
 	}
 
-	LOGINF("successfully registered virtpci_ctrlchan_func (0x%p) as callback.\n",
-	       (void *)&virtpci_ctrlchan_func);
 	/* create debugfs directory and info file inside. */
 	virtpci_debugfs_dir = debugfs_create_dir("virtpci", NULL);
 	debugfs_create_file("info", S_IRUSR, virtpci_debugfs_dir,
 			    NULL, &debugfs_info_fops);
-	LOGINF("Leaving\n");
 	POSTCODE_LINUX_2(VPCI_CREATE_EXIT_PC, POSTCODE_SEVERITY_INFO);
 	return 0;
 }
 
 static void __exit virtpci_mod_exit(void)
 {
-	LOGINF("virtpci_mod_exit...\n");
-
 	/* unregister the callback function */
-	if (!uisctrl_register_req_handler(2, NULL, NULL))
-		LOGERR("uisctrl_register_req_handler ****FAILED.\n");
-
 	device_unregister(&virtpci_rootbus_device);
 	bus_unregister(&virtpci_bus_type);
 	debugfs_remove_recursive(virtpci_debugfs_dir);
-	LOGINF("Leaving\n");
 }
 
 module_init(virtpci_mod_init);
diff --git a/drivers/staging/unisys/visorchannel/Kconfig b/drivers/staging/unisys/visorchannel/Kconfig
index 41c3b4b..8d31beb 100644
--- a/drivers/staging/unisys/visorchannel/Kconfig
+++ b/drivers/staging/unisys/visorchannel/Kconfig
@@ -4,7 +4,7 @@
 
 config UNISYS_VISORCHANNEL
 	tristate "Unisys visorchannel driver"
-	depends on UNISYSSPAR && UNISYS_VISORUTIL
+	select UNISYS_VISORUTIL
 	---help---
 	If you say Y here, you will enable the Unisys visorchannel driver.
 
diff --git a/drivers/staging/unisys/visorchannel/globals.h b/drivers/staging/unisys/visorchannel/globals.h
index 581ed83..0ed8e1d 100644
--- a/drivers/staging/unisys/visorchannel/globals.h
+++ b/drivers/staging/unisys/visorchannel/globals.h
@@ -18,7 +18,6 @@
 #ifndef __VISORCHANNEL_GLOBALS_H__
 #define __VISORCHANNEL_GLOBALS_H__
 
-#include "uniklog.h"
 #include "timskmod.h"
 #include "memregion.h"
 #include "version.h"
diff --git a/drivers/staging/unisys/visorchannel/visorchannel_funcs.c b/drivers/staging/unisys/visorchannel/visorchannel_funcs.c
index 0188ef8..7a9a724 100644
--- a/drivers/staging/unisys/visorchannel/visorchannel_funcs.c
+++ b/drivers/staging/unisys/visorchannel/visorchannel_funcs.c
@@ -58,8 +58,7 @@ visorchannel_create_guts(HOSTADDRESS physaddr, ulong channel_bytes,
 	void *rc = NULL;
 
 	p = kmalloc(sizeof(*p), GFP_KERNEL|__GFP_NORETRY);
-	if (p == NULL) {
-		ERRDRV("allocation failed: (status=0)\n");
+	if (!p) {
 		rc = NULL;
 		goto cleanup;
 	}
@@ -69,7 +68,7 @@ visorchannel_create_guts(HOSTADDRESS physaddr, ulong channel_bytes,
 	spin_lock_init(&p->remove_lock);
 
 	/* prepare chan_hdr (abstraction to read/write channel memory) */
-	if (parent == NULL)
+	if (!parent)
 		p->memregion =
 		    visor_memregion_create(physaddr,
 					   sizeof(struct channel_header));
@@ -77,14 +76,12 @@ visorchannel_create_guts(HOSTADDRESS physaddr, ulong channel_bytes,
 		p->memregion =
 		    visor_memregion_create_overlapped(parent->memregion,
 				off, sizeof(struct channel_header));
-	if (p->memregion == NULL) {
-		ERRDRV("visor_memregion_create failed failed: (status=0)\n");
+	if (!p->memregion) {
 		rc = NULL;
 		goto cleanup;
 	}
 	if (visor_memregion_read(p->memregion, 0, &p->chan_hdr,
 				 sizeof(struct channel_header)) < 0) {
-		ERRDRV("visor_memregion_read failed: (status=0)\n");
 		rc = NULL;
 		goto cleanup;
 	}
@@ -95,7 +92,6 @@ visorchannel_create_guts(HOSTADDRESS physaddr, ulong channel_bytes,
 		/* we had better be a CLIENT of this channel */
 		guid = p->chan_hdr.chtype;
 	if (visor_memregion_resize(p->memregion, channel_bytes) < 0) {
-		ERRDRV("visor_memregion_resize failed: (status=0)\n");
 		rc = NULL;
 		goto cleanup;
 	}
@@ -105,8 +101,8 @@ visorchannel_create_guts(HOSTADDRESS physaddr, ulong channel_bytes,
 	rc = p;
 cleanup:
 
-	if (rc == NULL) {
-		if (p != NULL) {
+	if (!rc) {
+		if (!p) {
 			visorchannel_destroy(p);
 			p = NULL;
 		}
@@ -154,9 +150,9 @@ EXPORT_SYMBOL_GPL(visorchannel_create_overlapped_with_lock);
 void
 visorchannel_destroy(struct visorchannel *channel)
 {
-	if (channel == NULL)
+	if (!channel)
 		return;
-	if (channel->memregion != NULL) {
+	if (channel->memregion) {
 		visor_memregion_destroy(channel->memregion);
 		channel->memregion = NULL;
 	}
@@ -256,10 +252,9 @@ visorchannel_clear(struct visorchannel *channel, ulong offset, u8 ch,
 	int written = 0;
 	u8 *buf = vmalloc(bufsize);
 
-	if (buf == NULL) {
-		ERRDRV("%s failed memory allocation", __func__);
+	if (!buf)
 		goto cleanup;
-	}
+
 	memset(buf, ch, bufsize);
 	while (nbytes > 0) {
 		ulong thisbytes = bufsize;
@@ -279,7 +274,7 @@ visorchannel_clear(struct visorchannel *channel, ulong offset, u8 ch,
 	rc = 0;
 
 cleanup:
-	if (buf != NULL) {
+	if (buf) {
 		vfree(buf);
 		buf = NULL;
 	}
@@ -324,10 +319,8 @@ sig_read_header(struct visorchannel *channel, u32 queue,
 {
 	BOOL rc = FALSE;
 
-	if (channel->chan_hdr.ch_space_offset < sizeof(struct channel_header)) {
-		ERRDRV("oChannelSpace too small: (status=%d)\n", rc);
+	if (channel->chan_hdr.ch_space_offset < sizeof(struct channel_header))
 		goto cleanup;
-	}
 
 	/* Read the appropriate SIGNAL_QUEUE_HEADER into local memory. */
 
@@ -335,10 +328,6 @@ sig_read_header(struct visorchannel *channel, u32 queue,
 				 SIG_QUEUE_OFFSET(&channel->chan_hdr, queue),
 				 sig_hdr,
 				 sizeof(struct signal_queue_header)) < 0) {
-		ERRDRV("queue=%d SIG_QUEUE_OFFSET=%d",
-		       queue, (int)SIG_QUEUE_OFFSET(&channel->chan_hdr, queue));
-		ERRDRV("visor_memregion_read of signal queue failed: (status=%d)\n",
-		       rc);
 		goto cleanup;
 	}
 	rc = TRUE;
@@ -358,15 +347,11 @@ sig_do_data(struct visorchannel *channel, u32 queue,
 		if (visor_memregion_write(channel->memregion,
 					  signal_data_offset,
 					  data, sig_hdr->signal_size) < 0) {
-			ERRDRV("visor_memregion_write of signal data failed: (status=%d)\n",
-			       rc);
 			goto cleanup;
 		}
 	} else {
 		if (visor_memregion_read(channel->memregion, signal_data_offset,
 					 data, sig_hdr->signal_size) < 0) {
-			ERRDRV("visor_memregion_read of signal data failed: (status=%d)\n",
-			       rc);
 			goto cleanup;
 		}
 	}
@@ -404,8 +389,6 @@ safe_sig_queue_validate(struct signal_queue_header *psafe_sqh,
 		punsafe_sqh->head = *phead;
 		punsafe_sqh->tail = *ptail;
 
-		ERRDRV("safe_sig_queue_validate: head = 0x%x, tail = 0x%x, MaxSlots = 0x%x",
-		       *phead, *ptail, psafe_sqh->max_slots);
 		return 0;
 	}
 	return 1;
@@ -416,15 +399,13 @@ signalremove_inner(struct visorchannel *channel, u32 queue, void *msg)
 {
 	struct signal_queue_header sig_hdr;
 
-	if (!sig_read_header(channel, queue, &sig_hdr)) {
+	if (!sig_read_header(channel, queue, &sig_hdr))
 		return FALSE;
-	}
 	if (sig_hdr.head == sig_hdr.tail)
 		return FALSE;	/* no signals to remove */
 
 	sig_hdr.tail = (sig_hdr.tail + 1) % sig_hdr.max_slots;
 	if (!sig_read_data(channel, queue, &sig_hdr, sig_hdr.tail, msg)) {
-		ERRDRV("sig_read_data failed\n");
 		return FALSE;
 	}
 	sig_hdr.num_received++;
@@ -433,14 +414,10 @@ signalremove_inner(struct visorchannel *channel, u32 queue, void *msg)
 	 * update host memory.
 	 */
 	mb(); /* required for channel synch */
-	if (!SIG_WRITE_FIELD(channel, queue, &sig_hdr, tail)) {
-		ERRDRV("visor_memregion_write of Tail failed\n");
+	if (!SIG_WRITE_FIELD(channel, queue, &sig_hdr, tail))
 		return FALSE;
-	}
-	if (!SIG_WRITE_FIELD(channel, queue, &sig_hdr, num_received)) {
-		ERRDRV("visor_memregion_write of NumSignalsReceived failed\n");
+	if (!SIG_WRITE_FIELD(channel, queue, &sig_hdr, num_received))
 		return FALSE;
-	}
 	return TRUE;
 }
 
@@ -466,35 +443,34 @@ signalinsert_inner(struct visorchannel *channel, u32 queue, void *msg)
 {
 	struct signal_queue_header sig_hdr;
 
-	if (!sig_read_header(channel, queue, &sig_hdr)) {
+	if (!sig_read_header(channel, queue, &sig_hdr))
 		return FALSE;
-	}
 
 	sig_hdr.head = ((sig_hdr.head + 1) % sig_hdr.max_slots);
 	if (sig_hdr.head == sig_hdr.tail) {
 		sig_hdr.num_overflows++;
-		if (!SIG_WRITE_FIELD(channel, queue, &sig_hdr, num_overflows))
-			ERRDRV("visor_memregion_write of NumOverflows failed\n");
-
+		visor_memregion_write(channel->memregion,
+				      SIG_QUEUE_OFFSET(&channel->chan_hdr,
+						       queue) +
+				      offsetof(struct signal_queue_header,
+					       num_overflows),
+				      &(sig_hdr.num_overflows),
+				      sizeof(sig_hdr.num_overflows));
 		return FALSE;
 	}
 
-	if (!sig_write_data(channel, queue, &sig_hdr, sig_hdr.head, msg)) {
-		ERRDRV("sig_write_data failed\n");
+	if (!sig_write_data(channel, queue, &sig_hdr, sig_hdr.head, msg))
 		return FALSE;
-	}
+
 	sig_hdr.num_sent++;
 
 	/* For each data field in SIGNAL_QUEUE_HEADER that was modified,
 	 * update host memory.
 	 */
 	mb(); /* required for channel synch */
-	if (!SIG_WRITE_FIELD(channel, queue, &sig_hdr, head)) {
-		ERRDRV("visor_memregion_write of Head failed\n");
+	if (!SIG_WRITE_FIELD(channel, queue, &sig_hdr, head))
 		return FALSE;
-	}
 	if (!SIG_WRITE_FIELD(channel, queue, &sig_hdr, num_sent)) {
-		ERRDRV("visor_memregion_write of NumSignalsSent failed\n");
 		return FALSE;
 	}
 
@@ -584,15 +560,12 @@ visorchannel_debug(struct visorchannel *channel, int num_queues,
 	int i = 0;
 	int errcode = 0;
 
-	if (channel == NULL) {
-		ERRDRV("%s no channel", __func__);
+	if (!channel)
 		return;
-	}
 	memregion = channel->memregion;
-	if (memregion == NULL) {
-		ERRDRV("%s no memregion", __func__);
+	if (!memregion)
 		return;
-	}
+
 	addr = visor_memregion_get_physaddr(memregion);
 	nbytes_region = visor_memregion_get_nbytes(memregion);
 	errcode = visorchannel_read(channel, off,
@@ -672,11 +645,8 @@ visorchannel_dump_section(struct visorchannel *chan, char *s,
 		goto fmt_failed;
 
 	errcode = visorchannel_read(chan, off, buf, len);
-	if (errcode < 0) {
-		ERRDRV("%s failed to read %s from channel errcode=%d",
-		       s, __func__, errcode);
+	if (errcode < 0)
 		goto read_failed;
-	}
 	seq_printf(seq, "channel %s:\n", s);
 	tbuf = buf;
 	while (len > 0) {
diff --git a/drivers/staging/unisys/visorchannel/visorchannel_main.c b/drivers/staging/unisys/visorchannel/visorchannel_main.c
index f4be2e6..787d477 100644
--- a/drivers/staging/unisys/visorchannel/visorchannel_main.c
+++ b/drivers/staging/unisys/visorchannel/visorchannel_main.c
@@ -32,14 +32,12 @@ visorchannel_init(void)
 	if (!unisys_spar_platform)
 		return -ENODEV;
 
-	INFODRV("driver version %s loaded", VERSION);
 	return 0;
 }
 
 static void
 visorchannel_exit(void)
 {
-	INFODRV("driver unloaded");
 }
 
 module_init(visorchannel_init);
diff --git a/drivers/staging/unisys/visorchipset/Kconfig b/drivers/staging/unisys/visorchipset/Kconfig
index e86836f..b03bfc5 100644
--- a/drivers/staging/unisys/visorchipset/Kconfig
+++ b/drivers/staging/unisys/visorchipset/Kconfig
@@ -4,7 +4,8 @@
 
 config UNISYS_VISORCHIPSET
 	tristate "Unisys visorchipset driver"
-	depends on UNISYSSPAR && UNISYS_VISORUTIL && UNISYS_VISORCHANNEL && HAS_IOMEM
+	select UNISYS_VISORUTIL
+	select UNISYS_VISORCHANNEL
 	---help---
 	If you say Y here, you will enable the Unisys visorchipset driver.
 
diff --git a/drivers/staging/unisys/visorchipset/file.c b/drivers/staging/unisys/visorchipset/file.c
index e51fd4e..203de0b 100644
--- a/drivers/staging/unisys/visorchipset/file.c
+++ b/drivers/staging/unisys/visorchipset/file.c
@@ -30,74 +30,14 @@
 
 static struct cdev file_cdev;
 static struct visorchannel **file_controlvm_channel;
-static dev_t majordev = -1; /**< indicates major num for device */
-static BOOL registered = FALSE;
-
-static int visorchipset_open(struct inode *inode, struct file *file);
-static int visorchipset_release(struct inode *inode, struct file *file);
-static int visorchipset_mmap(struct file *file, struct vm_area_struct *vma);
-long visorchipset_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
-
-static const struct file_operations visorchipset_fops = {
-	.owner = THIS_MODULE,
-	.open = visorchipset_open,
-	.read = NULL,
-	.write = NULL,
-	.unlocked_ioctl = visorchipset_ioctl,
-	.release = visorchipset_release,
-	.mmap = visorchipset_mmap,
-};
-
-int
-visorchipset_file_init(dev_t major_dev, struct visorchannel **controlvm_channel)
-{
-	int rc = 0;
-
-	file_controlvm_channel = controlvm_channel;
-	majordev = major_dev;
-	cdev_init(&file_cdev, &visorchipset_fops);
-	file_cdev.owner = THIS_MODULE;
-	if (MAJOR(majordev) == 0) {
-		/* dynamic major device number registration required */
-		if (alloc_chrdev_region(&majordev, 0, 1, MYDRVNAME) < 0) {
-			ERRDRV("Unable to allocate+register char device %s",
-			       MYDRVNAME);
-			return -1;
-		}
-		registered = TRUE;
-		INFODRV("New major number %d registered\n", MAJOR(majordev));
-	} else {
-		/* static major device number registration required */
-		if (register_chrdev_region(majordev, 1, MYDRVNAME) < 0) {
-			ERRDRV("Unable to register char device %s", MYDRVNAME);
-			return -1;
-		}
-		registered = TRUE;
-		INFODRV("Static major number %d registered\n", MAJOR(majordev));
-	}
-	rc = cdev_add(&file_cdev, MKDEV(MAJOR(majordev), 0), 1);
-	if (rc  < 0) {
-		ERRDRV("failed to create char device: (status=%d)\n", rc);
-		return -1;
-	}
-	INFODRV("Registered char device for %s (major=%d)",
-		MYDRVNAME, MAJOR(majordev));
-	return 0;
-}
 
 void
-visorchipset_file_cleanup(void)
+visorchipset_file_cleanup(dev_t major_dev)
 {
 	if (file_cdev.ops != NULL)
 		cdev_del(&file_cdev);
 	file_cdev.ops = NULL;
-	if (registered) {
-		if (MAJOR(majordev) >= 0) {
-			unregister_chrdev_region(majordev, 1);
-			majordev = MKDEV(0, 0);
-		}
-		registered = FALSE;
-	}
+	unregister_chrdev_region(major_dev, 1);
 }
 
 static int
@@ -105,7 +45,6 @@ visorchipset_open(struct inode *inode, struct file *file)
 {
 	unsigned minor_number = iminor(inode);
 
-	DEBUGDRV("%s", __func__);
 	if (minor_number != 0)
 		return -ENODEV;
 	file->private_data = NULL;
@@ -115,7 +54,6 @@ visorchipset_open(struct inode *inode, struct file *file)
 static int
 visorchipset_release(struct inode *inode, struct file *file)
 {
-	DEBUGDRV("%s", __func__);
 	return 0;
 }
 
@@ -127,16 +65,13 @@ visorchipset_mmap(struct file *file, struct vm_area_struct *vma)
 	GUEST_PHYSICAL_ADDRESS addr = 0;
 
 	/* sv_enable_dfp(); */
-	DEBUGDRV("%s", __func__);
-	if (offset & (PAGE_SIZE - 1)) {
-		ERRDRV("%s virtual address NOT page-aligned!", __func__);
+	if (offset & (PAGE_SIZE - 1))
 		return -ENXIO;	/* need aligned offsets */
-	}
+
 	switch (offset) {
 	case VISORCHIPSET_MMAP_CONTROLCHANOFFSET:
 		vma->vm_flags |= VM_IO;
 		if (*file_controlvm_channel == NULL) {
-			ERRDRV("%s no controlvm channel yet", __func__);
 			return -ENXIO;
 		}
 		visorchannel_read(*file_controlvm_channel,
@@ -144,33 +79,29 @@ visorchipset_mmap(struct file *file, struct vm_area_struct *vma)
 				 gp_control_channel),
 			&addr, sizeof(addr));
 		if (addr == 0) {
-			ERRDRV("%s control channel address is 0", __func__);
 			return -ENXIO;
 		}
 		physaddr = (ulong)addr;
-		DEBUGDRV("mapping physical address = 0x%lx", physaddr);
 		if (remap_pfn_range(vma, vma->vm_start,
 				    physaddr >> PAGE_SHIFT,
 				    vma->vm_end - vma->vm_start,
 				    /*pgprot_noncached */
 				    (vma->vm_page_prot))) {
-			ERRDRV("%s remap_pfn_range failed", __func__);
 			return -EAGAIN;
 		}
 		break;
 	default:
 		return -ENOSYS;
 	}
-	DEBUGDRV("%s success!", __func__);
 	return 0;
 }
 
-long visorchipset_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+static long visorchipset_ioctl(struct file *file, unsigned int cmd,
+				unsigned long arg)
 {
 	s64 adjustment;
 	s64 vrtc_offset;
 
-	DBGINF("entered visorchipset_ioctl, cmd=%d", cmd);
 	switch (cmd) {
 	case VMCALL_QUERY_GUEST_VIRTUAL_TIME_OFFSET:
 		/* get the physical rtc offset */
@@ -179,19 +110,51 @@ long visorchipset_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 		    ((void __user *)arg, &vrtc_offset, sizeof(vrtc_offset))) {
 			return -EFAULT;
 		}
-		DBGINF("insde visorchipset_ioctl, cmd=%d, vrtc_offset=%lld",
-		       cmd, vrtc_offset);
 		return SUCCESS;
 	case VMCALL_UPDATE_PHYSICAL_TIME:
 		if (copy_from_user
 		    (&adjustment, (void __user *)arg, sizeof(adjustment))) {
 			return -EFAULT;
 		}
-		DBGINF("insde visorchipset_ioctl, cmd=%d, adjustment=%lld", cmd,
-		       adjustment);
 		return issue_vmcall_update_physical_time(adjustment);
 	default:
-		LOGERR("visorchipset_ioctl received invalid command");
 		return -EFAULT;
 	}
 }
+
+static const struct file_operations visorchipset_fops = {
+	.owner = THIS_MODULE,
+	.open = visorchipset_open,
+	.read = NULL,
+	.write = NULL,
+	.unlocked_ioctl = visorchipset_ioctl,
+	.release = visorchipset_release,
+	.mmap = visorchipset_mmap,
+};
+
+int
+visorchipset_file_init(dev_t major_dev, struct visorchannel **controlvm_channel)
+{
+	int rc = 0;
+
+	file_controlvm_channel = controlvm_channel;
+	cdev_init(&file_cdev, &visorchipset_fops);
+	file_cdev.owner = THIS_MODULE;
+	if (MAJOR(major_dev) == 0) {
+		rc = alloc_chrdev_region(&major_dev, 0, 1, MYDRVNAME);
+		/* dynamic major device number registration required */
+		if (rc < 0)
+			return rc;
+	} else {
+		/* static major device number registration required */
+		rc = register_chrdev_region(major_dev, 1, MYDRVNAME);
+		if (rc < 0)
+			return rc;
+	}
+	rc = cdev_add(&file_cdev, MKDEV(MAJOR(major_dev), 0), 1);
+	if (rc < 0) {
+		unregister_chrdev_region(major_dev, 1);
+		return rc;
+	}
+	return 0;
+}
diff --git a/drivers/staging/unisys/visorchipset/file.h b/drivers/staging/unisys/visorchipset/file.h
index dc7a195..51f7699 100644
--- a/drivers/staging/unisys/visorchipset/file.h
+++ b/drivers/staging/unisys/visorchipset/file.h
@@ -22,6 +22,6 @@
 
 int visorchipset_file_init(dev_t majorDev,
 			   struct visorchannel **pControlVm_channel);
-void visorchipset_file_cleanup(void);
+void visorchipset_file_cleanup(dev_t major_dev);
 
 #endif
diff --git a/drivers/staging/unisys/visorchipset/globals.h b/drivers/staging/unisys/visorchipset/globals.h
index a1d35d4..f76e498 100644
--- a/drivers/staging/unisys/visorchipset/globals.h
+++ b/drivers/staging/unisys/visorchipset/globals.h
@@ -18,7 +18,6 @@
 #ifndef __VISORCHIPSET_GLOBALS_H__
 #define __VISORCHIPSET_GLOBALS_H__
 
-#include "uniklog.h"
 #include "diagnostics/appos_subsystems.h"
 #include "timskmod.h"
 #include "visorchipset.h"
diff --git a/drivers/staging/unisys/visorchipset/parser.c b/drivers/staging/unisys/visorchipset/parser.c
index 9edbd3b..d8a2d6f 100644
--- a/drivers/staging/unisys/visorchipset/parser.c
+++ b/drivers/staging/unisys/visorchipset/parser.c
@@ -29,9 +29,9 @@
  * incoming payloads.  This serves as a throttling mechanism.
  */
 #define MAX_CONTROLVM_PAYLOAD_BYTES (1024*128)
-static ulong Controlvm_Payload_Bytes_Buffered;
+static ulong controlvm_payload_bytes_buffered;
 
-struct PARSER_CONTEXT_Tag {
+struct parser_context {
 	ulong allocbytes;
 	ulong param_bytes;
 	u8 *curr;
@@ -40,41 +40,36 @@ struct PARSER_CONTEXT_Tag {
 	char data[0];
 };
 
-static PARSER_CONTEXT *
-parser_init_guts(u64 addr, u32 bytes, BOOL isLocal,
-		 BOOL hasStandardPayloadHeader, BOOL *tryAgain)
+static struct parser_context *
+parser_init_guts(u64 addr, u32 bytes, BOOL local,
+		 BOOL standard_payload_header, BOOL *retry)
 {
-	int allocbytes = sizeof(PARSER_CONTEXT) + bytes;
-	PARSER_CONTEXT *rc = NULL;
-	PARSER_CONTEXT *ctx = NULL;
+	int allocbytes = sizeof(struct parser_context) + bytes;
+	struct parser_context *rc = NULL;
+	struct parser_context *ctx = NULL;
 	struct memregion *rgn = NULL;
 	struct spar_controlvm_parameters_header *phdr = NULL;
 
-	if (tryAgain)
-		*tryAgain = FALSE;
-	if (!hasStandardPayloadHeader)
+	if (retry)
+		*retry = FALSE;
+	if (!standard_payload_header)
 		/* alloc and 0 extra byte to ensure payload is
 		 * '\0'-terminated
 		 */
 		allocbytes++;
-	if ((Controlvm_Payload_Bytes_Buffered + bytes)
+	if ((controlvm_payload_bytes_buffered + bytes)
 	    > MAX_CONTROLVM_PAYLOAD_BYTES) {
-		ERRDRV("%s (%s:%d) - prevented allocation of %d bytes to prevent exceeding throttling max (%d)",
-		       __func__, __FILE__, __LINE__, allocbytes,
-		       MAX_CONTROLVM_PAYLOAD_BYTES);
-		if (tryAgain)
-			*tryAgain = TRUE;
+		if (retry)
+			*retry = TRUE;
 		rc = NULL;
-		goto Away;
+		goto cleanup;
 	}
 	ctx = kzalloc(allocbytes, GFP_KERNEL|__GFP_NORETRY);
-	if (ctx == NULL) {
-		ERRDRV("%s (%s:%d) - failed to allocate %d bytes",
-		       __func__, __FILE__, __LINE__, allocbytes);
-		if (tryAgain)
-			*tryAgain = TRUE;
+	if (!ctx) {
+		if (retry)
+			*retry = TRUE;
 		rc = NULL;
-		goto Away;
+		goto cleanup;
 	}
 
 	ctx->allocbytes = allocbytes;
@@ -82,15 +77,12 @@ parser_init_guts(u64 addr, u32 bytes, BOOL isLocal,
 	ctx->curr = NULL;
 	ctx->bytes_remaining = 0;
 	ctx->byte_stream = FALSE;
-	if (isLocal) {
+	if (local) {
 		void *p;
 
 		if (addr > virt_to_phys(high_memory - 1)) {
-			ERRDRV("%s - bad local address (0x%-16.16Lx for %lu)",
-			       __func__,
-			       (unsigned long long) addr, (ulong) bytes);
 			rc = NULL;
-			goto Away;
+			goto cleanup;
 		}
 		p = __va((ulong) (addr));
 		memcpy(ctx->data, p, bytes);
@@ -98,54 +90,42 @@ parser_init_guts(u64 addr, u32 bytes, BOOL isLocal,
 		rgn = visor_memregion_create(addr, bytes);
 		if (!rgn) {
 			rc = NULL;
-			goto Away;
+			goto cleanup;
 		}
 		if (visor_memregion_read(rgn, 0, ctx->data, bytes) < 0) {
 			rc = NULL;
-			goto Away;
+			goto cleanup;
 		}
 	}
-	if (!hasStandardPayloadHeader) {
+	if (!standard_payload_header) {
 		ctx->byte_stream = TRUE;
 		rc = ctx;
-		goto Away;
+		goto cleanup;
 	}
 	phdr = (struct spar_controlvm_parameters_header *)(ctx->data);
 	if (phdr->total_length != bytes) {
-		ERRDRV("%s - bad total length %lu (should be %lu)",
-		       __func__,
-		       (ulong) (phdr->total_length), (ulong) (bytes));
 		rc = NULL;
-		goto Away;
+		goto cleanup;
 	}
 	if (phdr->total_length < phdr->header_length) {
-		ERRDRV("%s - total length < header length (%lu < %lu)",
-		       __func__,
-		       (ulong) (phdr->total_length),
-		       (ulong) (phdr->header_length));
 		rc = NULL;
-		goto Away;
+		goto cleanup;
 	}
 	if (phdr->header_length <
 	    sizeof(struct spar_controlvm_parameters_header)) {
-		ERRDRV("%s - header is too small (%lu < %lu)",
-		       __func__,
-		       (ulong) (phdr->header_length),
-		       (ulong)(sizeof(
-				struct spar_controlvm_parameters_header)));
 		rc = NULL;
-		goto Away;
+		goto cleanup;
 	}
 
 	rc = ctx;
-Away:
+cleanup:
 	if (rgn) {
 		visor_memregion_destroy(rgn);
 		rgn = NULL;
 	}
-	if (rc)
-		Controlvm_Payload_Bytes_Buffered += ctx->param_bytes;
-	else {
+	if (rc) {
+		controlvm_payload_bytes_buffered += ctx->param_bytes;
+	} else {
 		if (ctx) {
 			parser_done(ctx);
 			ctx = NULL;
@@ -154,10 +134,10 @@ Away:
 	return rc;
 }
 
-PARSER_CONTEXT *
-parser_init(u64 addr, u32 bytes, BOOL isLocal, BOOL *tryAgain)
+struct parser_context *
+parser_init(u64 addr, u32 bytes, BOOL local, BOOL *retry)
 {
-	return parser_init_guts(addr, bytes, isLocal, TRUE, tryAgain);
+	return parser_init_guts(addr, bytes, local, TRUE, retry);
 }
 
 /* Call this instead of parser_init() if the payload area consists of just
@@ -165,16 +145,16 @@ parser_init(u64 addr, u32 bytes, BOOL isLocal, BOOL *tryAgain)
  * structures.  Afterwards, you can call parser_simpleString_get() or
  * parser_byteStream_get() to obtain the data.
  */
-PARSER_CONTEXT *
-parser_init_byteStream(u64 addr, u32 bytes, BOOL isLocal, BOOL *tryAgain)
+struct parser_context *
+parser_init_byte_stream(u64 addr, u32 bytes, BOOL local, BOOL *retry)
 {
-	return parser_init_guts(addr, bytes, isLocal, FALSE, tryAgain);
+	return parser_init_guts(addr, bytes, local, FALSE, retry);
 }
 
 /* Obtain '\0'-terminated copy of string in payload area.
  */
 char *
-parser_simpleString_get(PARSER_CONTEXT *ctx)
+parser_simpleString_get(struct parser_context *ctx)
 {
 	if (!ctx->byte_stream)
 		return NULL;
@@ -185,40 +165,33 @@ parser_simpleString_get(PARSER_CONTEXT *ctx)
 
 /* Obtain a copy of the buffer in the payload area.
  */
-void *
-parser_byteStream_get(PARSER_CONTEXT *ctx, ulong *nbytes)
+void *parser_byte_stream_get(struct parser_context *ctx, ulong *nbytes)
 {
 	if (!ctx->byte_stream)
 		return NULL;
 	if (nbytes)
 		*nbytes = ctx->param_bytes;
-	return (void *) ctx->data;
+	return (void *)ctx->data;
 }
 
 uuid_le
-parser_id_get(PARSER_CONTEXT *ctx)
+parser_id_get(struct parser_context *ctx)
 {
 	struct spar_controlvm_parameters_header *phdr = NULL;
 
-	if (ctx == NULL) {
-		ERRDRV("%s (%s:%d) - no context",
-		       __func__, __FILE__, __LINE__);
+	if (ctx == NULL)
 		return NULL_UUID_LE;
-	}
 	phdr = (struct spar_controlvm_parameters_header *)(ctx->data);
 	return phdr->id;
 }
 
 void
-parser_param_start(PARSER_CONTEXT *ctx, PARSER_WHICH_STRING which_string)
+parser_param_start(struct parser_context *ctx, PARSER_WHICH_STRING which_string)
 {
 	struct spar_controlvm_parameters_header *phdr = NULL;
 
-	if (ctx == NULL) {
-		ERRDRV("%s (%s:%d) - no context",
-		       __func__, __FILE__, __LINE__);
+	if (ctx == NULL)
 		goto Away;
-	}
 	phdr = (struct spar_controlvm_parameters_header *)(ctx->data);
 	switch (which_string) {
 	case PARSERSTRING_INITIATOR:
@@ -238,7 +211,6 @@ parser_param_start(PARSER_CONTEXT *ctx, PARSER_WHICH_STRING which_string)
 		ctx->bytes_remaining = phdr->name_length;
 		break;
 	default:
-		ERRDRV("%s - bad which_string %d", __func__, which_string);
 		break;
 	}
 
@@ -247,11 +219,11 @@ Away:
 }
 
 void
-parser_done(PARSER_CONTEXT *ctx)
+parser_done(struct parser_context *ctx)
 {
 	if (!ctx)
 		return;
-	Controlvm_Payload_Bytes_Buffered -= ctx->param_bytes;
+	controlvm_payload_bytes_buffered -= ctx->param_bytes;
 	kfree(ctx);
 }
 
@@ -290,7 +262,7 @@ string_length_no_trail(char *s, int len)
  *    parameter
  */
 void *
-parser_param_get(PARSER_CONTEXT *ctx, char *nam, int namesize)
+parser_param_get(struct parser_context *ctx, char *nam, int namesize)
 {
 	u8 *pscan, *pnam = nam;
 	ulong nscan;
@@ -321,25 +293,18 @@ parser_param_get(PARSER_CONTEXT *ctx, char *nam, int namesize)
 	}
 
 	while (*pscan != ':') {
-		if (namesize <= 0) {
-			ERRDRV("%s - name too big", __func__);
+		if (namesize <= 0)
 			return NULL;
-		}
 		*pnam = toupper(*pscan);
 		pnam++;
 		namesize--;
 		pscan++;
 		nscan--;
-		if (nscan == 0) {
-			ERRDRV("%s - unexpected end of input parsing name",
-			       __func__);
+		if (nscan == 0)
 			return NULL;
-		}
 	}
-	if (namesize <= 0) {
-		ERRDRV("%s - name too big", __func__);
+	if (namesize <= 0)
 		return NULL;
-	}
 	*pnam = '\0';
 	nam[string_length_no_trail(nam, strlen(nam))] = '\0';
 
@@ -350,26 +315,17 @@ parser_param_get(PARSER_CONTEXT *ctx, char *nam, int namesize)
 	while (isspace(*pscan)) {
 		pscan++;
 		nscan--;
-		if (nscan == 0) {
-			ERRDRV("%s - unexpected end of input looking for value",
-			       __func__);
+		if (nscan == 0)
 			return NULL;
-		}
 	}
-	if (nscan == 0) {
-		ERRDRV("%s - unexpected end of input looking for value",
-		       __func__);
+	if (nscan == 0)
 		return NULL;
-	}
 	if (*pscan == '\'' || *pscan == '"') {
 		closing_quote = *pscan;
 		pscan++;
 		nscan--;
-		if (nscan == 0) {
-			ERRDRV("%s - unexpected end of input after %c",
-			       __func__, closing_quote);
+		if (nscan == 0)
 			return NULL;
-		}
 	}
 
 	/* look for a separator character, terminator character, or
@@ -377,10 +333,8 @@ parser_param_get(PARSER_CONTEXT *ctx, char *nam, int namesize)
 	 */
 	for (i = 0, value_length = -1; i < nscan; i++) {
 		if (closing_quote) {
-			if (pscan[i] == '\0') {
-				ERRDRV("%s - unexpected end of input parsing quoted value", __func__);
+			if (pscan[i] == '\0')
 				return NULL;
-			}
 			if (pscan[i] == closing_quote) {
 				value_length = i;
 				break;
@@ -393,10 +347,8 @@ parser_param_get(PARSER_CONTEXT *ctx, char *nam, int namesize)
 		}
 	}
 	if (value_length < 0) {
-		if (closing_quote) {
-			ERRDRV("%s - unexpected end of input parsing quoted value", __func__);
+		if (closing_quote)
 			return NULL;
-		}
 		value_length = nscan;
 	}
 	orig_value_length = value_length;
@@ -433,7 +385,6 @@ parser_param_get(PARSER_CONTEXT *ctx, char *nam, int namesize)
 				pscan++;
 				nscan--;
 			} else if (*pscan != '\0') {
-				ERRDRV("%s - missing separator after quoted string", __func__);
 				kfree(value);
 				value = NULL;
 				return NULL;
@@ -446,7 +397,7 @@ parser_param_get(PARSER_CONTEXT *ctx, char *nam, int namesize)
 }
 
 void *
-parser_string_get(PARSER_CONTEXT *ctx)
+parser_string_get(struct parser_context *ctx)
 {
 	u8 *pscan;
 	ulong nscan;
diff --git a/drivers/staging/unisys/visorchipset/parser.h b/drivers/staging/unisys/visorchipset/parser.h
index 9fbe3b5..2b903f1 100644
--- a/drivers/staging/unisys/visorchipset/parser.h
+++ b/drivers/staging/unisys/visorchipset/parser.h
@@ -20,7 +20,6 @@
 
 #include <linux/uuid.h>
 
-#include "uniklog.h"
 #include "timskmod.h"
 #include "channel.h"
 
@@ -31,17 +30,17 @@ typedef enum {
 	PARSERSTRING_NAME,
 } PARSER_WHICH_STRING;
 
-typedef struct PARSER_CONTEXT_Tag PARSER_CONTEXT;
-
-PARSER_CONTEXT *parser_init(u64 addr, u32 bytes, BOOL isLocal, BOOL *tryAgain);
-PARSER_CONTEXT *parser_init_byteStream(u64 addr, u32 bytes, BOOL isLocal,
-				       BOOL *tryAgain);
-void parser_param_start(PARSER_CONTEXT *ctx, PARSER_WHICH_STRING which_string);
-void *parser_param_get(PARSER_CONTEXT *ctx, char *nam, int namesize);
-void *parser_string_get(PARSER_CONTEXT *ctx);
-uuid_le parser_id_get(PARSER_CONTEXT *ctx);
-char *parser_simpleString_get(PARSER_CONTEXT *ctx);
-void *parser_byteStream_get(PARSER_CONTEXT *ctx, ulong *nbytes);
-void parser_done(PARSER_CONTEXT *ctx);
+struct parser_context *parser_init(u64 addr, u32 bytes, BOOL isLocal,
+				   BOOL *tryAgain);
+struct parser_context *parser_init_byte_stream(u64 addr, u32 bytes, BOOL local,
+				       BOOL *retry);
+void parser_param_start(struct parser_context *ctx,
+			PARSER_WHICH_STRING which_string);
+void *parser_param_get(struct parser_context *ctx, char *nam, int namesize);
+void *parser_string_get(struct parser_context *ctx);
+uuid_le parser_id_get(struct parser_context *ctx);
+char *parser_simpleString_get(struct parser_context *ctx);
+void *parser_byte_stream_get(struct parser_context *ctx, ulong *nbytes);
+void parser_done(struct parser_context *ctx);
 
 #endif
diff --git a/drivers/staging/unisys/visorchipset/visorchipset.h b/drivers/staging/unisys/visorchipset/visorchipset.h
index 98f3ba4..bd46df9 100644
--- a/drivers/staging/unisys/visorchipset/visorchipset.h
+++ b/drivers/staging/unisys/visorchipset/visorchipset.h
@@ -133,7 +133,6 @@ struct visorchipset_bus_info {
 	u8 *description;	/* UTF8 */
 	u64 reserved1;
 	u32 reserved2;
-	MYPROCOBJECT *proc_object;
 	struct {
 		u32 server:1;
 		/* Add new fields above. */
diff --git a/drivers/staging/unisys/visorchipset/visorchipset_main.c b/drivers/staging/unisys/visorchipset/visorchipset_main.c
index f606ee9..f2663d2c 100644
--- a/drivers/staging/unisys/visorchipset/visorchipset_main.c
+++ b/drivers/staging/unisys/visorchipset/visorchipset_main.c
@@ -22,7 +22,6 @@
 #include "periodic_work.h"
 #include "file.h"
 #include "parser.h"
-#include "uniklog.h"
 #include "uisutils.h"
 #include "controlvmcompletionstatus.h"
 #include "guestlinuxdebug.h"
@@ -49,8 +48,8 @@
 * message, we switch back to fast polling mode.
 */
 #define MIN_IDLE_SECONDS 10
-static ulong Poll_jiffies = POLLJIFFIES_CONTROLVMCHANNEL_FAST;
-static ulong Most_recent_message_jiffies;	/* when we got our last
+static ulong poll_jiffies = POLLJIFFIES_CONTROLVMCHANNEL_FAST;
+static ulong most_recent_message_jiffies;	/* when we got our last
 						 * controlvm message */
 static inline char *
 NONULLSTR(char *s)
@@ -66,83 +65,74 @@ static int clientregistered;
 #define MAX_CHIPSET_EVENTS 2
 static u8 chipset_events[MAX_CHIPSET_EVENTS] = { 0, 0 };
 
-static struct delayed_work Periodic_controlvm_work;
-static struct workqueue_struct *Periodic_controlvm_workqueue;
-static DEFINE_SEMAPHORE(NotifierLock);
+static struct delayed_work periodic_controlvm_work;
+static struct workqueue_struct *periodic_controlvm_workqueue;
+static DEFINE_SEMAPHORE(notifier_lock);
 
-typedef struct {
-	struct controlvm_message message;
-	unsigned int crc;
-} MESSAGE_ENVELOPE;
-
-static struct controlvm_message_header g_DiagMsgHdr;
-static struct controlvm_message_header g_ChipSetMsgHdr;
-static struct controlvm_message_header g_DelDumpMsgHdr;
-static const uuid_le UltraDiagPoolChannelProtocolGuid =
+static struct controlvm_message_header g_diag_msg_hdr;
+static struct controlvm_message_header g_chipset_msg_hdr;
+static struct controlvm_message_header g_del_dump_msg_hdr;
+static const uuid_le spar_diag_pool_channel_protocol_uuid =
 	SPAR_DIAG_POOL_CHANNEL_PROTOCOL_UUID;
 /* 0xffffff is an invalid Bus/Device number */
-static ulong g_diagpoolBusNo = 0xffffff;
-static ulong g_diagpoolDevNo = 0xffffff;
-static struct controlvm_message_packet g_DeviceChangeStatePacket;
+static ulong g_diagpool_bus_no = 0xffffff;
+static ulong g_diagpool_dev_no = 0xffffff;
+static struct controlvm_message_packet g_devicechangestate_packet;
 
 /* Only VNIC and VHBA channels are sent to visorclientbus (aka
  * "visorhackbus")
  */
 #define FOR_VISORHACKBUS(channel_type_guid) \
 	(((uuid_le_cmp(channel_type_guid,\
-		       spar_vnic_channel_protocol_uuid) == 0)\
-	|| (uuid_le_cmp(channel_type_guid,\
+		       spar_vnic_channel_protocol_uuid) == 0) ||\
+	(uuid_le_cmp(channel_type_guid,\
 			spar_vhba_channel_protocol_uuid) == 0)))
 #define FOR_VISORBUS(channel_type_guid) (!(FOR_VISORHACKBUS(channel_type_guid)))
 
 #define is_diagpool_channel(channel_type_guid) \
-	 (uuid_le_cmp(channel_type_guid, UltraDiagPoolChannelProtocolGuid) == 0)
+	(uuid_le_cmp(channel_type_guid,\
+		     spar_diag_pool_channel_protocol_uuid) == 0)
 
-static LIST_HEAD(BusInfoList);
-static LIST_HEAD(DevInfoList);
+static LIST_HEAD(bus_info_list);
+static LIST_HEAD(dev_info_list);
 
-static struct visorchannel *ControlVm_channel;
+static struct visorchannel *controlvm_channel;
 
-typedef struct {
+/* Manages the request payload in the controlvm channel */
+static struct controlvm_payload_info {
 	u8 __iomem *ptr;	/* pointer to base address of payload pool */
 	u64 offset;		/* offset from beginning of controlvm
 				 * channel to beginning of payload * pool */
 	u32 bytes;		/* number of bytes in payload pool */
-} CONTROLVM_PAYLOAD_INFO;
-
-/* Manages the request payload in the controlvm channel */
-static CONTROLVM_PAYLOAD_INFO ControlVm_payload_info;
+} controlvm_payload_info;
 
-static struct channel_header *Test_Vnic_channel;
-
-typedef struct {
-	struct controlvm_message_header Dumpcapture_header;
-	struct controlvm_message_header Gettextdump_header;
-	struct controlvm_message_header Dumpcomplete_header;
-	BOOL Gettextdump_outstanding;
+/* Manages the info for a CONTROLVM_DUMP_CAPTURESTATE /
+ * CONTROLVM_DUMP_GETTEXTDUMP / CONTROLVM_DUMP_COMPLETE conversation.
+ */
+static struct livedump_info {
+	struct controlvm_message_header dumpcapture_header;
+	struct controlvm_message_header gettextdump_header;
+	struct controlvm_message_header dumpcomplete_header;
+	BOOL gettextdump_outstanding;
 	u32 crc32;
 	ulong length;
 	atomic_t buffers_in_use;
 	ulong destination;
-} LIVEDUMP_INFO;
-/* Manages the info for a CONTROLVM_DUMP_CAPTURESTATE /
- * CONTROLVM_DUMP_GETTEXTDUMP / CONTROLVM_DUMP_COMPLETE conversation.
- */
-static LIVEDUMP_INFO LiveDump_info;
+} livedump_info;
 
 /* The following globals are used to handle the scenario where we are unable to
  * offload the payload from a controlvm message due to memory requirements.  In
  * this scenario, we simply stash the controlvm message, then attempt to
  * process it again the next time controlvm_periodic_work() runs.
  */
-static struct controlvm_message ControlVm_Pending_Msg;
-static BOOL ControlVm_Pending_Msg_Valid = FALSE;
+static struct controlvm_message controlvm_pending_msg;
+static BOOL controlvm_pending_msg_valid = FALSE;
 
 /* Pool of struct putfile_buffer_entry, for keeping track of pending (incoming)
  * TRANSMIT_FILE PutFile payloads.
  */
-static struct kmem_cache *Putfile_buffer_list_pool;
-static const char Putfile_buffer_list_pool_name[] =
+static struct kmem_cache *putfile_buffer_list_pool;
+static const char putfile_buffer_list_pool_name[] =
 	"controlvm_putfile_buffer_list_pool";
 
 /* This identifies a data buffer that has been received via a controlvm messages
@@ -150,14 +140,14 @@ static const char Putfile_buffer_list_pool_name[] =
  */
 struct putfile_buffer_entry {
 	struct list_head next;	/* putfile_buffer_entry list */
-	PARSER_CONTEXT *parser_ctx; /* points to buffer containing input data */
+	struct parser_context *parser_ctx; /* points to input data buffer */
 };
 
 /* List of struct putfile_request *, via next_putfile_request member.
  * Each entry in this list identifies an outstanding TRANSMIT_FILE
  * conversation.
  */
-static LIST_HEAD(Putfile_request_list);
+static LIST_HEAD(putfile_request_list);
 
 /* This describes a buffer and its current state of transfer (e.g., how many
  * bytes have already been supplied as putfile data, and how many bytes are
@@ -165,7 +155,7 @@ static LIST_HEAD(Putfile_request_list);
  */
 struct putfile_active_buffer {
 	/* a payload from a controlvm message, containing a file data buffer */
-	PARSER_CONTEXT *parser_ctx;
+	struct parser_context *parser_ctx;
 	/* points within data area of parser_ctx to next byte of data */
 	u8 *pnext;
 	/* # bytes left from <pnext> to the end of this data buffer */
@@ -213,7 +203,7 @@ struct putfile_request {
 	int completion_status;
 };
 
-static atomic_t Visorchipset_cache_buffers_in_use = ATOMIC_INIT(0);
+static atomic_t visorchipset_cache_buffers_in_use = ATOMIC_INIT(0);
 
 struct parahotplug_request {
 	struct list_head list;
@@ -222,23 +212,23 @@ struct parahotplug_request {
 	struct controlvm_message msg;
 };
 
-static LIST_HEAD(Parahotplug_request_list);
-static DEFINE_SPINLOCK(Parahotplug_request_list_lock);	/* lock for above */
+static LIST_HEAD(parahotplug_request_list);
+static DEFINE_SPINLOCK(parahotplug_request_list_lock);	/* lock for above */
 static void parahotplug_process_list(void);
 
 /* Manages the info for a CONTROLVM_DUMP_CAPTURESTATE /
  * CONTROLVM_REPORTEVENT.
  */
-static struct visorchipset_busdev_notifiers BusDev_Server_Notifiers;
-static struct visorchipset_busdev_notifiers BusDev_Client_Notifiers;
+static struct visorchipset_busdev_notifiers busdev_server_notifiers;
+static struct visorchipset_busdev_notifiers busdev_client_notifiers;
 
-static void bus_create_response(ulong busNo, int response);
-static void bus_destroy_response(ulong busNo, int response);
-static void device_create_response(ulong busNo, ulong devNo, int response);
-static void device_destroy_response(ulong busNo, ulong devNo, int response);
-static void device_resume_response(ulong busNo, ulong devNo, int response);
+static void bus_create_response(ulong bus_no, int response);
+static void bus_destroy_response(ulong bus_no, int response);
+static void device_create_response(ulong bus_no, ulong dev_no, int response);
+static void device_destroy_response(ulong bus_no, ulong dev_no, int response);
+static void device_resume_response(ulong bus_no, ulong dev_no, int response);
 
-static struct visorchipset_busdev_responders BusDev_Responders = {
+static struct visorchipset_busdev_responders busdev_responders = {
 	.bus_create = bus_create_response,
 	.bus_destroy = bus_destroy_response,
 	.device_create = device_create_response,
@@ -248,49 +238,55 @@ static struct visorchipset_busdev_responders BusDev_Responders = {
 };
 
 /* info for /dev/visorchipset */
-static dev_t MajorDev = -1; /**< indicates major num for device */
+static dev_t major_dev = -1; /**< indicates major num for device */
 
 /* prototypes for attributes */
 static ssize_t toolaction_show(struct device *dev,
-	struct device_attribute *attr, char *buf);
+			       struct device_attribute *attr, char *buf);
 static ssize_t toolaction_store(struct device *dev,
-	struct device_attribute *attr, const char *buf, size_t count);
+				struct device_attribute *attr,
+				const char *buf, size_t count);
 static DEVICE_ATTR_RW(toolaction);
 
 static ssize_t boottotool_show(struct device *dev,
-	struct device_attribute *attr, char *buf);
+			       struct device_attribute *attr, char *buf);
 static ssize_t boottotool_store(struct device *dev,
-	struct device_attribute *attr, const char *buf, size_t count);
+				struct device_attribute *attr, const char *buf,
+				size_t count);
 static DEVICE_ATTR_RW(boottotool);
 
 static ssize_t error_show(struct device *dev, struct device_attribute *attr,
-	char *buf);
+			  char *buf);
 static ssize_t error_store(struct device *dev, struct device_attribute *attr,
-	const char *buf, size_t count);
+			   const char *buf, size_t count);
 static DEVICE_ATTR_RW(error);
 
 static ssize_t textid_show(struct device *dev, struct device_attribute *attr,
-	char *buf);
+			   char *buf);
 static ssize_t textid_store(struct device *dev, struct device_attribute *attr,
-	const char *buf, size_t count);
+			    const char *buf, size_t count);
 static DEVICE_ATTR_RW(textid);
 
 static ssize_t remaining_steps_show(struct device *dev,
-	struct device_attribute *attr, char *buf);
+				    struct device_attribute *attr, char *buf);
 static ssize_t remaining_steps_store(struct device *dev,
-	struct device_attribute *attr, const char *buf, size_t count);
+				     struct device_attribute *attr,
+				     const char *buf, size_t count);
 static DEVICE_ATTR_RW(remaining_steps);
 
 static ssize_t chipsetready_store(struct device *dev,
-		struct device_attribute *attr, const char *buf, size_t count);
+				  struct device_attribute *attr,
+				  const char *buf, size_t count);
 static DEVICE_ATTR_WO(chipsetready);
 
 static ssize_t devicedisabled_store(struct device *dev,
-		struct device_attribute *attr, const char *buf, size_t count);
+				    struct device_attribute *attr,
+				    const char *buf, size_t count);
 static DEVICE_ATTR_WO(devicedisabled);
 
 static ssize_t deviceenabled_store(struct device *dev,
-		struct device_attribute *attr, const char *buf, size_t count);
+				   struct device_attribute *attr,
+				   const char *buf, size_t count);
 static DEVICE_ATTR_WO(deviceenabled);
 
 static struct attribute *visorchipset_install_attrs[] = {
@@ -336,47 +332,48 @@ static const struct attribute_group *visorchipset_dev_groups[] = {
 };
 
 /* /sys/devices/platform/visorchipset */
-static struct platform_device Visorchipset_platform_device = {
+static struct platform_device visorchipset_platform_device = {
 	.name = "visorchipset",
 	.id = -1,
 	.dev.groups = visorchipset_dev_groups,
 };
 
 /* Function prototypes */
-static void controlvm_respond(struct controlvm_message_header *msgHdr,
+static void controlvm_respond(struct controlvm_message_header *msg_hdr,
 			      int response);
 static void controlvm_respond_chipset_init(
-		struct controlvm_message_header *msgHdr, int response,
+		struct controlvm_message_header *msg_hdr, int response,
 		enum ultra_chipset_feature features);
 static void controlvm_respond_physdev_changestate(
-		struct controlvm_message_header *msgHdr, int response,
+		struct controlvm_message_header *msg_hdr, int response,
 		struct spar_segment_state state);
 
 static ssize_t toolaction_show(struct device *dev,
 			       struct device_attribute *attr,
 			       char *buf)
 {
-	u8 toolAction;
+	u8 tool_action;
 
-	visorchannel_read(ControlVm_channel,
+	visorchannel_read(controlvm_channel,
 		offsetof(struct spar_controlvm_channel_protocol,
-			   tool_action), &toolAction, sizeof(u8));
-	return scnprintf(buf, PAGE_SIZE, "%u\n", toolAction);
+			 tool_action), &tool_action, sizeof(u8));
+	return scnprintf(buf, PAGE_SIZE, "%u\n", tool_action);
 }
 
 static ssize_t toolaction_store(struct device *dev,
 				struct device_attribute *attr,
 				const char *buf, size_t count)
 {
-	u8 toolAction;
+	u8 tool_action;
 	int ret;
 
-	if (kstrtou8(buf, 10, &toolAction) != 0)
+	if (kstrtou8(buf, 10, &tool_action) != 0)
 		return -EINVAL;
 
-	ret = visorchannel_write(ControlVm_channel,
-		offsetof(struct spar_controlvm_channel_protocol, tool_action),
-		&toolAction, sizeof(u8));
+	ret = visorchannel_write(controlvm_channel,
+		offsetof(struct spar_controlvm_channel_protocol,
+			 tool_action),
+		&tool_action, sizeof(u8));
 
 	if (ret)
 		return ret;
@@ -387,14 +384,14 @@ static ssize_t boottotool_show(struct device *dev,
 			       struct device_attribute *attr,
 			       char *buf)
 {
-	struct efi_spar_indication efiSparIndication;
+	struct efi_spar_indication efi_spar_indication;
 
-	visorchannel_read(ControlVm_channel,
-		offsetof(struct spar_controlvm_channel_protocol,
-			efi_spar_ind), &efiSparIndication,
-		sizeof(struct efi_spar_indication));
+	visorchannel_read(controlvm_channel,
+			  offsetof(struct spar_controlvm_channel_protocol,
+				   efi_spar_ind), &efi_spar_indication,
+			  sizeof(struct efi_spar_indication));
 	return scnprintf(buf, PAGE_SIZE, "%u\n",
-			efiSparIndication.boot_to_tool);
+			 efi_spar_indication.boot_to_tool);
 }
 
 static ssize_t boottotool_store(struct device *dev,
@@ -402,17 +399,16 @@ static ssize_t boottotool_store(struct device *dev,
 				const char *buf, size_t count)
 {
 	int val, ret;
-	struct efi_spar_indication efiSparIndication;
+	struct efi_spar_indication efi_spar_indication;
 
 	if (kstrtoint(buf, 10, &val) != 0)
 		return -EINVAL;
 
-	efiSparIndication.boot_to_tool = val;
-	ret = visorchannel_write(ControlVm_channel,
+	efi_spar_indication.boot_to_tool = val;
+	ret = visorchannel_write(controlvm_channel,
 			offsetof(struct spar_controlvm_channel_protocol,
-				efi_spar_ind),
-			&(efiSparIndication),
-		sizeof(struct efi_spar_indication));
+				 efi_spar_ind), &(efi_spar_indication),
+				 sizeof(struct efi_spar_indication));
 
 	if (ret)
 		return ret;
@@ -420,18 +416,19 @@ static ssize_t boottotool_store(struct device *dev,
 }
 
 static ssize_t error_show(struct device *dev, struct device_attribute *attr,
-		char *buf)
+			  char *buf)
 {
 	u32 error;
 
-	visorchannel_read(ControlVm_channel, offsetof(
-		struct spar_controlvm_channel_protocol, installation_error),
-		&error, sizeof(u32));
+	visorchannel_read(controlvm_channel,
+			  offsetof(struct spar_controlvm_channel_protocol,
+				   installation_error),
+			  &error, sizeof(u32));
 	return scnprintf(buf, PAGE_SIZE, "%i\n", error);
 }
 
 static ssize_t error_store(struct device *dev, struct device_attribute *attr,
-		const char *buf, size_t count)
+			   const char *buf, size_t count)
 {
 	u32 error;
 	int ret;
@@ -439,114 +436,81 @@ static ssize_t error_store(struct device *dev, struct device_attribute *attr,
 	if (kstrtou32(buf, 10, &error) != 0)
 		return -EINVAL;
 
-	ret = visorchannel_write(ControlVm_channel,
-			offsetof(struct spar_controlvm_channel_protocol,
-				installation_error),
-			&error, sizeof(u32));
+	ret = visorchannel_write(controlvm_channel,
+		offsetof(struct spar_controlvm_channel_protocol,
+			 installation_error),
+		&error, sizeof(u32));
 	if (ret)
 		return ret;
 	return count;
 }
 
 static ssize_t textid_show(struct device *dev, struct device_attribute *attr,
-		char *buf)
+			   char *buf)
 {
-	u32 textId;
+	u32 text_id;
 
-	visorchannel_read(ControlVm_channel, offsetof(
-		struct spar_controlvm_channel_protocol, installation_text_id),
-		&textId, sizeof(u32));
-	return scnprintf(buf, PAGE_SIZE, "%i\n", textId);
+	visorchannel_read(controlvm_channel,
+			  offsetof(struct spar_controlvm_channel_protocol,
+				   installation_text_id),
+			  &text_id, sizeof(u32));
+	return scnprintf(buf, PAGE_SIZE, "%i\n", text_id);
 }
 
 static ssize_t textid_store(struct device *dev, struct device_attribute *attr,
-		const char *buf, size_t count)
+			    const char *buf, size_t count)
 {
-	u32 textId;
+	u32 text_id;
 	int ret;
 
-	if (kstrtou32(buf, 10, &textId) != 0)
+	if (kstrtou32(buf, 10, &text_id) != 0)
 		return -EINVAL;
 
-	ret = visorchannel_write(ControlVm_channel,
-			offsetof(struct spar_controlvm_channel_protocol,
-				installation_text_id),
-			&textId, sizeof(u32));
+	ret = visorchannel_write(controlvm_channel,
+		offsetof(struct spar_controlvm_channel_protocol,
+			 installation_text_id),
+		&text_id, sizeof(u32));
 	if (ret)
 		return ret;
 	return count;
 }
 
-
 static ssize_t remaining_steps_show(struct device *dev,
-	struct device_attribute *attr, char *buf)
+				    struct device_attribute *attr, char *buf)
 {
-	u16 remainingSteps;
+	u16 remaining_steps;
 
-	visorchannel_read(ControlVm_channel,
-		offsetof(struct spar_controlvm_channel_protocol,
-			installation_remaining_steps),
-		&remainingSteps,
-		sizeof(u16));
-	return scnprintf(buf, PAGE_SIZE, "%hu\n", remainingSteps);
+	visorchannel_read(controlvm_channel,
+			  offsetof(struct spar_controlvm_channel_protocol,
+				   installation_remaining_steps),
+			  &remaining_steps, sizeof(u16));
+	return scnprintf(buf, PAGE_SIZE, "%hu\n", remaining_steps);
 }
 
 static ssize_t remaining_steps_store(struct device *dev,
-	struct device_attribute *attr, const char *buf, size_t count)
+				     struct device_attribute *attr,
+				     const char *buf, size_t count)
 {
-	u16 remainingSteps;
+	u16 remaining_steps;
 	int ret;
 
-	if (kstrtou16(buf, 10, &remainingSteps) != 0)
+	if (kstrtou16(buf, 10, &remaining_steps) != 0)
 		return -EINVAL;
 
-	ret = visorchannel_write(ControlVm_channel,
-			offsetof(struct spar_controlvm_channel_protocol,
-				installation_remaining_steps),
-			&remainingSteps, sizeof(u16));
+	ret = visorchannel_write(controlvm_channel,
+		offsetof(struct spar_controlvm_channel_protocol,
+			 installation_remaining_steps),
+		&remaining_steps, sizeof(u16));
 	if (ret)
 		return ret;
 	return count;
 }
 
-#if 0
-static void
-testUnicode(void)
-{
-	wchar_t unicodeString[] = { 'a', 'b', 'c', 0 };
-	char s[sizeof(unicodeString) * NLS_MAX_CHARSET_SIZE];
-	wchar_t unicode2[99];
-
-	/* NOTE: Either due to a bug, or feature I don't understand, the
-	 *       kernel utf8_mbstowcs() and utf_wcstombs() do NOT copy the
-	 *       trailed NUL byte!!   REALLY!!!!!    Arrrrgggghhhhh
-	 */
-
-	LOGINF("sizeof(wchar_t) = %d", sizeof(wchar_t));
-	LOGINF("utf8_wcstombs=%d",
-	       chrs = utf8_wcstombs(s, unicodeString, sizeof(s)));
-	if (chrs >= 0)
-		s[chrs] = '\0';	/* GRRRRRRRR */
-	LOGINF("s='%s'", s);
-	LOGINF("utf8_mbstowcs=%d", chrs = utf8_mbstowcs(unicode2, s, 100));
-	if (chrs >= 0)
-		unicode2[chrs] = 0;	/* GRRRRRRRR */
-	if (memcmp(unicodeString, unicode2, sizeof(unicodeString)) == 0)
-		LOGINF("strings match... good");
-	else
-		LOGINF("strings did not match!!");
-}
-#endif
-
 static void
-busInfo_clear(void *v)
+bus_info_clear(void *v)
 {
 	struct visorchipset_bus_info *p = (struct visorchipset_bus_info *) (v);
 
-	if (p->proc_object) {
-		visor_proc_DestroyObject(p->proc_object);
-		p->proc_object = NULL;
-	}
 	kfree(p->name);
 	p->name = NULL;
 
@@ -558,7 +522,7 @@ busInfo_clear(void *v)
 }
 
 static void
-devInfo_clear(void *v)
+dev_info_clear(void *v)
 {
 	struct visorchipset_device_info *p =
 			(struct visorchipset_device_info *)(v);
@@ -593,22 +557,22 @@ visorchipset_register_busdev_server(
 			struct visorchipset_busdev_responders *responders,
 			struct ultra_vbus_deviceinfo *driver_info)
 {
-	down(&NotifierLock);
-	if (notifiers == NULL) {
-		memset(&BusDev_Server_Notifiers, 0,
-		       sizeof(BusDev_Server_Notifiers));
+	down(&notifier_lock);
+	if (!notifiers) {
+		memset(&busdev_server_notifiers, 0,
+		       sizeof(busdev_server_notifiers));
 		serverregistered = 0;	/* clear flag */
 	} else {
-		BusDev_Server_Notifiers = *notifiers;
+		busdev_server_notifiers = *notifiers;
 		serverregistered = 1;	/* set flag */
 	}
 	if (responders)
-		*responders = BusDev_Responders;
+		*responders = busdev_responders;
 	if (driver_info)
 		bus_device_info_init(driver_info, "chipset", "visorchipset",
-				   VERSION, NULL);
+				     VERSION, NULL);
 
-	up(&NotifierLock);
+	up(&notifier_lock);
 }
 EXPORT_SYMBOL_GPL(visorchipset_register_busdev_server);
 
@@ -618,21 +582,21 @@ visorchipset_register_busdev_client(
 			struct visorchipset_busdev_responders *responders,
 			struct ultra_vbus_deviceinfo *driver_info)
 {
-	down(&NotifierLock);
-	if (notifiers == NULL) {
-		memset(&BusDev_Client_Notifiers, 0,
-		       sizeof(BusDev_Client_Notifiers));
+	down(&notifier_lock);
+	if (!notifiers) {
+		memset(&busdev_client_notifiers, 0,
+		       sizeof(busdev_client_notifiers));
 		clientregistered = 0;	/* clear flag */
 	} else {
-		BusDev_Client_Notifiers = *notifiers;
+		busdev_client_notifiers = *notifiers;
 		clientregistered = 1;	/* set flag */
 	}
 	if (responders)
-		*responders = BusDev_Responders;
+		*responders = busdev_responders;
 	if (driver_info)
 		bus_device_info_init(driver_info, "chipset(bolts)",
 				     "visorchipset", VERSION, NULL);
-	up(&NotifierLock);
+	up(&notifier_lock);
 }
 EXPORT_SYMBOL_GPL(visorchipset_register_busdev_client);
 
@@ -642,14 +606,14 @@ cleanup_controlvm_structures(void)
 	struct visorchipset_bus_info *bi, *tmp_bi;
 	struct visorchipset_device_info *di, *tmp_di;
 
-	list_for_each_entry_safe(bi, tmp_bi, &BusInfoList, entry) {
-		busInfo_clear(bi);
+	list_for_each_entry_safe(bi, tmp_bi, &bus_info_list, entry) {
+		bus_info_clear(bi);
 		list_del(&bi->entry);
 		kfree(bi);
 	}
 
-	list_for_each_entry_safe(di, tmp_di, &DevInfoList, entry) {
-		devInfo_clear(di);
+	list_for_each_entry_safe(di, tmp_di, &dev_info_list, entry) {
+		dev_info_clear(di);
 		list_del(&di->entry);
 		kfree(di);
 	}
@@ -664,9 +628,8 @@ chipset_init(struct controlvm_message *inmsg)
 
 	POSTCODE_LINUX_2(CHIPSET_INIT_ENTRY_PC, POSTCODE_SEVERITY_INFO);
 	if (chipset_inited) {
-		LOGERR("CONTROLVM_CHIPSET_INIT Failed: Already Done.");
 		rc = -CONTROLVM_RESP_ERROR_ALREADY_DONE;
-		goto Away;
+		goto cleanup;
 	}
 	chipset_inited = 1;
 	POSTCODE_LINUX_2(CHIPSET_INIT_EXIT_PC, POSTCODE_SEVERITY_INFO);
@@ -681,7 +644,7 @@ chipset_init(struct controlvm_message *inmsg)
 	 * features-aware driver. */
 	features |= ULTRA_CHIPSET_FEATURE_REPLY;
 
-Away:
+cleanup:
 	if (rc < 0)
 		cleanup_controlvm_structures();
 	if (inmsg->hdr.flags.response_expected)
@@ -690,10 +653,10 @@ Away:
 
 static void
 controlvm_init_response(struct controlvm_message *msg,
-			struct controlvm_message_header *msgHdr, int response)
+			struct controlvm_message_header *msg_hdr, int response)
 {
 	memset(msg, 0, sizeof(struct controlvm_message));
-	memcpy(&msg->hdr, msgHdr, sizeof(struct controlvm_message_header));
+	memcpy(&msg->hdr, msg_hdr, sizeof(struct controlvm_message_header));
 	msg->hdr.payload_bytes = 0;
 	msg->hdr.payload_vm_offset = 0;
 	msg->hdr.payload_max_bytes = 0;
@@ -704,59 +667,54 @@ controlvm_init_response(struct controlvm_message *msg,
 }
 
 static void
-controlvm_respond(struct controlvm_message_header *msgHdr, int response)
+controlvm_respond(struct controlvm_message_header *msg_hdr, int response)
 {
 	struct controlvm_message outmsg;
 
-	controlvm_init_response(&outmsg, msgHdr, response);
+	controlvm_init_response(&outmsg, msg_hdr, response);
 	/* For DiagPool channel DEVICE_CHANGESTATE, we need to send
 	* back the deviceChangeState structure in the packet. */
-	if (msgHdr->id == CONTROLVM_DEVICE_CHANGESTATE
-	    && g_DeviceChangeStatePacket.device_change_state.bus_no ==
-	    g_diagpoolBusNo
-	    && g_DeviceChangeStatePacket.device_change_state.dev_no ==
-	    g_diagpoolDevNo)
-		outmsg.cmd = g_DeviceChangeStatePacket;
-	if (outmsg.hdr.flags.test_message == 1) {
-		LOGINF("%s controlvm_msg=0x%x response=%d for test message",
-		       __func__, outmsg.hdr.id, response);
+	if (msg_hdr->id == CONTROLVM_DEVICE_CHANGESTATE &&
+	    g_devicechangestate_packet.device_change_state.bus_no ==
+	    g_diagpool_bus_no &&
+	    g_devicechangestate_packet.device_change_state.dev_no ==
+	    g_diagpool_dev_no)
+		outmsg.cmd = g_devicechangestate_packet;
+	if (outmsg.hdr.flags.test_message == 1)
 		return;
-	}
-	if (!visorchannel_signalinsert(ControlVm_channel,
+
+	if (!visorchannel_signalinsert(controlvm_channel,
 				       CONTROLVM_QUEUE_REQUEST, &outmsg)) {
-		LOGERR("signalinsert failed!");
 		return;
 	}
 }
 
 static void
-controlvm_respond_chipset_init(struct controlvm_message_header *msgHdr,
+controlvm_respond_chipset_init(struct controlvm_message_header *msg_hdr,
 			       int response,
 			       enum ultra_chipset_feature features)
 {
 	struct controlvm_message outmsg;
 
-	controlvm_init_response(&outmsg, msgHdr, response);
+	controlvm_init_response(&outmsg, msg_hdr, response);
 	outmsg.cmd.init_chipset.features = features;
-	if (!visorchannel_signalinsert(ControlVm_channel,
+	if (!visorchannel_signalinsert(controlvm_channel,
 				       CONTROLVM_QUEUE_REQUEST, &outmsg)) {
-		LOGERR("signalinsert failed!");
 		return;
 	}
 }
 
 static void controlvm_respond_physdev_changestate(
-		struct controlvm_message_header *msgHdr, int response,
+		struct controlvm_message_header *msg_hdr, int response,
 		struct spar_segment_state state)
 {
 	struct controlvm_message outmsg;
 
-	controlvm_init_response(&outmsg, msgHdr, response);
+	controlvm_init_response(&outmsg, msg_hdr, response);
 	outmsg.cmd.device_change_state.state = state;
 	outmsg.cmd.device_change_state.flags.phys_device = 1;
-	if (!visorchannel_signalinsert(ControlVm_channel,
+	if (!visorchannel_signalinsert(controlvm_channel,
 				       CONTROLVM_QUEUE_REQUEST, &outmsg)) {
-		LOGERR("signalinsert failed!");
 		return;
 	}
 }
@@ -765,56 +723,50 @@ void
 visorchipset_save_message(struct controlvm_message *msg,
 			  enum crash_obj_type type)
 {
-	u32 localSavedCrashMsgOffset;
-	u16 localSavedCrashMsgCount;
+	u32 crash_msg_offset;
+	u16 crash_msg_count;
 
 	/* get saved message count */
-	if (visorchannel_read(ControlVm_channel,
+	if (visorchannel_read(controlvm_channel,
 			      offsetof(struct spar_controlvm_channel_protocol,
 				       saved_crash_message_count),
-			      &localSavedCrashMsgCount, sizeof(u16)) < 0) {
-		LOGERR("failed to get Saved Message Count");
+			      &crash_msg_count, sizeof(u16)) < 0) {
 		POSTCODE_LINUX_2(CRASH_DEV_CTRL_RD_FAILURE_PC,
 				 POSTCODE_SEVERITY_ERR);
 		return;
 	}
 
-	if (localSavedCrashMsgCount != CONTROLVM_CRASHMSG_MAX) {
-		LOGERR("Saved Message Count incorrect %d",
-		       localSavedCrashMsgCount);
+	if (crash_msg_count != CONTROLVM_CRASHMSG_MAX) {
 		POSTCODE_LINUX_3(CRASH_DEV_COUNT_FAILURE_PC,
-				 localSavedCrashMsgCount,
+				 crash_msg_count,
 				 POSTCODE_SEVERITY_ERR);
 		return;
 	}
 
 	/* get saved crash message offset */
-	if (visorchannel_read(ControlVm_channel,
+	if (visorchannel_read(controlvm_channel,
 			      offsetof(struct spar_controlvm_channel_protocol,
 				       saved_crash_message_offset),
-			      &localSavedCrashMsgOffset, sizeof(u32)) < 0) {
-		LOGERR("failed to get Saved Message Offset");
+			      &crash_msg_offset, sizeof(u32)) < 0) {
 		POSTCODE_LINUX_2(CRASH_DEV_CTRL_RD_FAILURE_PC,
 				 POSTCODE_SEVERITY_ERR);
 		return;
 	}
 
 	if (type == CRASH_BUS) {
-		if (visorchannel_write(ControlVm_channel,
-				       localSavedCrashMsgOffset,
+		if (visorchannel_write(controlvm_channel,
+				       crash_msg_offset,
 				       msg,
 				       sizeof(struct controlvm_message)) < 0) {
-			LOGERR("SAVE_MSG_BUS_FAILURE: Failed to write CrashCreateBusMsg!");
 			POSTCODE_LINUX_2(SAVE_MSG_BUS_FAILURE_PC,
 					 POSTCODE_SEVERITY_ERR);
 			return;
 		}
 	} else {
-		if (visorchannel_write(ControlVm_channel,
-				       localSavedCrashMsgOffset +
+		if (visorchannel_write(controlvm_channel,
+				       crash_msg_offset +
 				       sizeof(struct controlvm_message), msg,
 				       sizeof(struct controlvm_message)) < 0) {
-			LOGERR("SAVE_MSG_DEV_FAILURE: Failed to write CrashCreateDevMsg!");
 			POSTCODE_LINUX_2(SAVE_MSG_DEV_FAILURE_PC,
 					 POSTCODE_SEVERITY_ERR);
 			return;
@@ -824,134 +776,118 @@ visorchipset_save_message(struct controlvm_message *msg,
 EXPORT_SYMBOL_GPL(visorchipset_save_message);
 
 static void
-bus_responder(enum controlvm_id cmdId, ulong busNo, int response)
+bus_responder(enum controlvm_id cmd_id, ulong bus_no, int response)
 {
 	struct visorchipset_bus_info *p = NULL;
 	BOOL need_clear = FALSE;
 
-	p = findbus(&BusInfoList, busNo);
-	if (!p) {
-		LOGERR("internal error busNo=%lu", busNo);
+	p = findbus(&bus_info_list, bus_no);
+	if (!p)
 		return;
-	}
+
 	if (response < 0) {
-		if ((cmdId == CONTROLVM_BUS_CREATE) &&
+		if ((cmd_id == CONTROLVM_BUS_CREATE) &&
 		    (response != (-CONTROLVM_RESP_ERROR_ALREADY_DONE)))
 			/* undo the row we just created... */
-			delbusdevices(&DevInfoList, busNo);
+			delbusdevices(&dev_info_list, bus_no);
 	} else {
-		if (cmdId == CONTROLVM_BUS_CREATE)
+		if (cmd_id == CONTROLVM_BUS_CREATE)
 			p->state.created = 1;
-		if (cmdId == CONTROLVM_BUS_DESTROY)
+		if (cmd_id == CONTROLVM_BUS_DESTROY)
 			need_clear = TRUE;
 	}
 
-	if (p->pending_msg_hdr.id == CONTROLVM_INVALID) {
-		LOGERR("bus_responder no pending msg");
+	if (p->pending_msg_hdr.id == CONTROLVM_INVALID)
 		return;		/* no controlvm response needed */
-	}
-	if (p->pending_msg_hdr.id != (u32) cmdId) {
-		LOGERR("expected=%d, found=%d", cmdId, p->pending_msg_hdr.id);
+	if (p->pending_msg_hdr.id != (u32)cmd_id)
 		return;
-	}
 	controlvm_respond(&p->pending_msg_hdr, response);
 	p->pending_msg_hdr.id = CONTROLVM_INVALID;
 	if (need_clear) {
-		busInfo_clear(p);
-		delbusdevices(&DevInfoList, busNo);
+		bus_info_clear(p);
+		delbusdevices(&dev_info_list, bus_no);
 	}
 }
 
 static void
-device_changestate_responder(enum controlvm_id cmdId,
-			     ulong busNo, ulong devNo, int response,
-			     struct spar_segment_state responseState)
+device_changestate_responder(enum controlvm_id cmd_id,
+			     ulong bus_no, ulong dev_no, int response,
+			     struct spar_segment_state response_state)
 {
 	struct visorchipset_device_info *p = NULL;
 	struct controlvm_message outmsg;
 
-	p = finddevice(&DevInfoList, busNo, devNo);
-	if (!p) {
-		LOGERR("internal error; busNo=%lu, devNo=%lu", busNo, devNo);
+	p = finddevice(&dev_info_list, bus_no, dev_no);
+	if (!p)
 		return;
-	}
-	if (p->pending_msg_hdr.id == CONTROLVM_INVALID) {
-		LOGERR("device_responder no pending msg");
+	if (p->pending_msg_hdr.id == CONTROLVM_INVALID)
 		return;		/* no controlvm response needed */
-	}
-	if (p->pending_msg_hdr.id != cmdId) {
-		LOGERR("expected=%d, found=%d", cmdId, p->pending_msg_hdr.id);
+	if (p->pending_msg_hdr.id != cmd_id)
 		return;
-	}
 
 	controlvm_init_response(&outmsg, &p->pending_msg_hdr, response);
 
-	outmsg.cmd.device_change_state.bus_no = busNo;
-	outmsg.cmd.device_change_state.dev_no = devNo;
-	outmsg.cmd.device_change_state.state = responseState;
+	outmsg.cmd.device_change_state.bus_no = bus_no;
+	outmsg.cmd.device_change_state.dev_no = dev_no;
+	outmsg.cmd.device_change_state.state = response_state;
 
-	if (!visorchannel_signalinsert(ControlVm_channel,
-				       CONTROLVM_QUEUE_REQUEST, &outmsg)) {
-		LOGERR("signalinsert failed!");
+	if (!visorchannel_signalinsert(controlvm_channel,
+				       CONTROLVM_QUEUE_REQUEST, &outmsg))
 		return;
-	}
 
 	p->pending_msg_hdr.id = CONTROLVM_INVALID;
 }
 
 static void
-device_responder(enum controlvm_id cmdId, ulong busNo, ulong devNo,
+device_responder(enum controlvm_id cmd_id, ulong bus_no, ulong dev_no,
 		 int response)
 {
 	struct visorchipset_device_info *p = NULL;
 	BOOL need_clear = FALSE;
 
-	p = finddevice(&DevInfoList, busNo, devNo);
-	if (!p) {
-		LOGERR("internal error; busNo=%lu, devNo=%lu", busNo, devNo);
+	p = finddevice(&dev_info_list, bus_no, dev_no);
+	if (!p)
 		return;
-	}
 	if (response >= 0) {
-		if (cmdId == CONTROLVM_DEVICE_CREATE)
+		if (cmd_id == CONTROLVM_DEVICE_CREATE)
 			p->state.created = 1;
-		if (cmdId == CONTROLVM_DEVICE_DESTROY)
+		if (cmd_id == CONTROLVM_DEVICE_DESTROY)
 			need_clear = TRUE;
 	}
 
-	if (p->pending_msg_hdr.id == CONTROLVM_INVALID) {
-		LOGERR("device_responder no pending msg");
+	if (p->pending_msg_hdr.id == CONTROLVM_INVALID)
 		return;		/* no controlvm response needed */
-	}
-	if (p->pending_msg_hdr.id != (u32) cmdId) {
-		LOGERR("expected=%d, found=%d", cmdId, p->pending_msg_hdr.id);
+
+	if (p->pending_msg_hdr.id != (u32)cmd_id)
 		return;
-	}
+
 	controlvm_respond(&p->pending_msg_hdr, response);
 	p->pending_msg_hdr.id = CONTROLVM_INVALID;
 	if (need_clear)
-		devInfo_clear(p);
+		dev_info_clear(p);
 }
 
 static void
-bus_epilog(u32 busNo,
-	   u32 cmd, struct controlvm_message_header *msgHdr,
-	   int response, BOOL needResponse)
+bus_epilog(u32 bus_no,
+	   u32 cmd, struct controlvm_message_header *msg_hdr,
+	   int response, BOOL need_response)
 {
 	BOOL notified = FALSE;
 
-	struct visorchipset_bus_info *pBusInfo = findbus(&BusInfoList, busNo);
+	struct visorchipset_bus_info *bus_info = findbus(&bus_info_list,
+							 bus_no);
 
-	if (!pBusInfo) {
-		LOGERR("HUH? bad busNo=%d", busNo);
+	if (!bus_info)
 		return;
-	}
-	if (needResponse) {
-		memcpy(&pBusInfo->pending_msg_hdr, msgHdr,
+
+	if (need_response) {
+		memcpy(&bus_info->pending_msg_hdr, msg_hdr,
 		       sizeof(struct controlvm_message_header));
-	} else
-		pBusInfo->pending_msg_hdr.id = CONTROLVM_INVALID;
+	} else {
+		bus_info->pending_msg_hdr.id = CONTROLVM_INVALID;
+	}
 
-	down(&NotifierLock);
+	down(&notifier_lock);
 	if (response == CONTROLVM_RESP_SUCCESS) {
 		switch (cmd) {
 		case CONTROLVM_BUS_CREATE:
@@ -965,24 +901,24 @@ bus_epilog(u32 busNo,
 			* either server or client devices
 			* - BusDev_Client can handle ONLY client
 			* devices */
-			if (BusDev_Server_Notifiers.bus_create) {
-				(*BusDev_Server_Notifiers.bus_create) (busNo);
+			if (busdev_server_notifiers.bus_create) {
+				(*busdev_server_notifiers.bus_create) (bus_no);
 				notified = TRUE;
 			}
-			if ((!pBusInfo->flags.server) /*client */ &&
-			    BusDev_Client_Notifiers.bus_create) {
-				(*BusDev_Client_Notifiers.bus_create) (busNo);
+			if ((!bus_info->flags.server) /*client */ &&
+			    busdev_client_notifiers.bus_create) {
+				(*busdev_client_notifiers.bus_create) (bus_no);
 				notified = TRUE;
 			}
 			break;
 		case CONTROLVM_BUS_DESTROY:
-			if (BusDev_Server_Notifiers.bus_destroy) {
-				(*BusDev_Server_Notifiers.bus_destroy) (busNo);
+			if (busdev_server_notifiers.bus_destroy) {
+				(*busdev_server_notifiers.bus_destroy) (bus_no);
 				notified = TRUE;
 			}
-			if ((!pBusInfo->flags.server) /*client */ &&
-			    BusDev_Client_Notifiers.bus_destroy) {
-				(*BusDev_Client_Notifiers.bus_destroy) (busNo);
+			if ((!bus_info->flags.server) /*client */ &&
+			    busdev_client_notifiers.bus_destroy) {
+				(*busdev_client_notifiers.bus_destroy) (bus_no);
 				notified = TRUE;
 			}
 			break;
@@ -995,45 +931,45 @@ bus_epilog(u32 busNo,
 		 */
 		;
 	else
-		bus_responder(cmd, busNo, response);
-	up(&NotifierLock);
+		bus_responder(cmd, bus_no, response);
+	up(&notifier_lock);
 }
 
 static void
-device_epilog(u32 busNo, u32 devNo, struct spar_segment_state state, u32 cmd,
-	      struct controlvm_message_header *msgHdr, int response,
-	      BOOL needResponse, BOOL for_visorbus)
+device_epilog(u32 bus_no, u32 dev_no, struct spar_segment_state state, u32 cmd,
+	      struct controlvm_message_header *msg_hdr, int response,
+	      BOOL need_response, BOOL for_visorbus)
 {
 	struct visorchipset_busdev_notifiers *notifiers = NULL;
 	BOOL notified = FALSE;
 
-	struct visorchipset_device_info *pDevInfo =
-		finddevice(&DevInfoList, busNo, devNo);
+	struct visorchipset_device_info *dev_info =
+		finddevice(&dev_info_list, bus_no, dev_no);
 	char *envp[] = {
 		"SPARSP_DIAGPOOL_PAUSED_STATE = 1",
 		NULL
 	};
 
-	if (!pDevInfo) {
-		LOGERR("HUH? bad busNo=%d, devNo=%d", busNo, devNo);
+	if (!dev_info)
 		return;
-	}
+
 	if (for_visorbus)
-		notifiers = &BusDev_Server_Notifiers;
+		notifiers = &busdev_server_notifiers;
 	else
-		notifiers = &BusDev_Client_Notifiers;
-	if (needResponse) {
-		memcpy(&pDevInfo->pending_msg_hdr, msgHdr,
+		notifiers = &busdev_client_notifiers;
+	if (need_response) {
+		memcpy(&dev_info->pending_msg_hdr, msg_hdr,
 		       sizeof(struct controlvm_message_header));
-	} else
-		pDevInfo->pending_msg_hdr.id = CONTROLVM_INVALID;
+	} else {
+		dev_info->pending_msg_hdr.id = CONTROLVM_INVALID;
+	}
 
-	down(&NotifierLock);
+	down(&notifier_lock);
 	if (response >= 0) {
 		switch (cmd) {
 		case CONTROLVM_DEVICE_CREATE:
 			if (notifiers->device_create) {
-				(*notifiers->device_create) (busNo, devNo);
+				(*notifiers->device_create) (bus_no, dev_no);
 				notified = TRUE;
 			}
 			break;
@@ -1043,8 +979,8 @@ device_epilog(u32 busNo, u32 devNo, struct spar_segment_state state, u32 cmd,
 			    state.operating ==
 				segment_state_running.operating) {
 				if (notifiers->device_resume) {
-					(*notifiers->device_resume) (busNo,
-								     devNo);
+					(*notifiers->device_resume) (bus_no,
+								     dev_no);
 					notified = TRUE;
 				}
 			}
@@ -1056,8 +992,8 @@ device_epilog(u32 busNo, u32 devNo, struct spar_segment_state state, u32 cmd,
 				 * where server is lost
 				 */
 				if (notifiers->device_pause) {
-					(*notifiers->device_pause) (busNo,
-								    devNo);
+					(*notifiers->device_pause) (bus_no,
+								    dev_no);
 					notified = TRUE;
 				}
 			} else if (state.alive == segment_state_paused.alive &&
@@ -1066,22 +1002,20 @@ device_epilog(u32 busNo, u32 devNo, struct spar_segment_state state, u32 cmd,
 				/* this is lite pause where channel is
 				 * still valid just 'pause' of it
 				 */
-				if (busNo == g_diagpoolBusNo
-				    && devNo == g_diagpoolDevNo) {
-					LOGINF("DEVICE_CHANGESTATE(DiagpoolChannel busNo=%d devNo=%d is pausing...)",
-					     busNo, devNo);
+				if (bus_no == g_diagpool_bus_no &&
+				    dev_no == g_diagpool_dev_no) {
 					/* this will trigger the
 					 * diag_shutdown.sh script in
 					 * the visorchipset hotplug */
 					kobject_uevent_env
-					    (&Visorchipset_platform_device.dev.
+					    (&visorchipset_platform_device.dev.
 					     kobj, KOBJ_ONLINE, envp);
 				}
 			}
 			break;
 		case CONTROLVM_DEVICE_DESTROY:
 			if (notifiers->device_destroy) {
-				(*notifiers->device_destroy) (busNo, devNo);
+				(*notifiers->device_destroy) (bus_no, dev_no);
 				notified = TRUE;
 			}
 			break;
@@ -1094,62 +1028,57 @@ device_epilog(u32 busNo, u32 devNo, struct spar_segment_state state, u32 cmd,
 		 */
 		;
 	else
-		device_responder(cmd, busNo, devNo, response);
-	up(&NotifierLock);
+		device_responder(cmd, bus_no, dev_no, response);
+	up(&notifier_lock);
 }
 
 static void
 bus_create(struct controlvm_message *inmsg)
 {
 	struct controlvm_message_packet *cmd = &inmsg->cmd;
-	ulong busNo = cmd->create_bus.bus_no;
+	ulong bus_no = cmd->create_bus.bus_no;
 	int rc = CONTROLVM_RESP_SUCCESS;
-	struct visorchipset_bus_info *pBusInfo = NULL;
-
+	struct visorchipset_bus_info *bus_info = NULL;
 
-	pBusInfo = findbus(&BusInfoList, busNo);
-	if (pBusInfo && (pBusInfo->state.created == 1)) {
-		LOGERR("CONTROLVM_BUS_CREATE Failed: bus %lu already exists",
-		       busNo);
-		POSTCODE_LINUX_3(BUS_CREATE_FAILURE_PC, busNo,
+	bus_info = findbus(&bus_info_list, bus_no);
+	if (bus_info && (bus_info->state.created == 1)) {
+		POSTCODE_LINUX_3(BUS_CREATE_FAILURE_PC, bus_no,
 				 POSTCODE_SEVERITY_ERR);
 		rc = -CONTROLVM_RESP_ERROR_ALREADY_DONE;
-		goto Away;
+		goto cleanup;
 	}
-	pBusInfo = kzalloc(sizeof(struct visorchipset_bus_info), GFP_KERNEL);
-	if (pBusInfo == NULL) {
-		LOGERR("CONTROLVM_BUS_CREATE Failed: bus %lu kzalloc failed",
-		       busNo);
-		POSTCODE_LINUX_3(BUS_CREATE_FAILURE_PC, busNo,
+	bus_info = kzalloc(sizeof(*bus_info), GFP_KERNEL);
+	if (!bus_info) {
+		POSTCODE_LINUX_3(BUS_CREATE_FAILURE_PC, bus_no,
 				 POSTCODE_SEVERITY_ERR);
 		rc = -CONTROLVM_RESP_ERROR_KMALLOC_FAILED;
-		goto Away;
+		goto cleanup;
 	}
 
-	INIT_LIST_HEAD(&pBusInfo->entry);
-	pBusInfo->bus_no = busNo;
-	pBusInfo->dev_no = cmd->create_bus.dev_count;
+	INIT_LIST_HEAD(&bus_info->entry);
+	bus_info->bus_no = bus_no;
+	bus_info->dev_no = cmd->create_bus.dev_count;
 
-	POSTCODE_LINUX_3(BUS_CREATE_ENTRY_PC, busNo, POSTCODE_SEVERITY_INFO);
+	POSTCODE_LINUX_3(BUS_CREATE_ENTRY_PC, bus_no, POSTCODE_SEVERITY_INFO);
 
 	if (inmsg->hdr.flags.test_message == 1)
-		pBusInfo->chan_info.addr_type = ADDRTYPE_LOCALTEST;
+		bus_info->chan_info.addr_type = ADDRTYPE_LOCALTEST;
 	else
-		pBusInfo->chan_info.addr_type = ADDRTYPE_LOCALPHYSICAL;
+		bus_info->chan_info.addr_type = ADDRTYPE_LOCALPHYSICAL;
 
-	pBusInfo->flags.server = inmsg->hdr.flags.server;
-	pBusInfo->chan_info.channel_addr = cmd->create_bus.channel_addr;
-	pBusInfo->chan_info.n_channel_bytes = cmd->create_bus.channel_bytes;
-	pBusInfo->chan_info.channel_type_uuid =
+	bus_info->flags.server = inmsg->hdr.flags.server;
+	bus_info->chan_info.channel_addr = cmd->create_bus.channel_addr;
+	bus_info->chan_info.n_channel_bytes = cmd->create_bus.channel_bytes;
+	bus_info->chan_info.channel_type_uuid =
 			cmd->create_bus.bus_data_type_uuid;
-	pBusInfo->chan_info.channel_inst_uuid = cmd->create_bus.bus_inst_uuid;
+	bus_info->chan_info.channel_inst_uuid = cmd->create_bus.bus_inst_uuid;
 
-	list_add(&pBusInfo->entry, &BusInfoList);
+	list_add(&bus_info->entry, &bus_info_list);
 
-	POSTCODE_LINUX_3(BUS_CREATE_EXIT_PC, busNo, POSTCODE_SEVERITY_INFO);
+	POSTCODE_LINUX_3(BUS_CREATE_EXIT_PC, bus_no, POSTCODE_SEVERITY_INFO);
 
-Away:
-	bus_epilog(busNo, CONTROLVM_BUS_CREATE, &inmsg->hdr,
+cleanup:
+	bus_epilog(bus_no, CONTROLVM_BUS_CREATE, &inmsg->hdr,
 		   rc, inmsg->hdr.flags.response_expected == 1);
 }
 
@@ -1157,76 +1086,58 @@ static void
 bus_destroy(struct controlvm_message *inmsg)
 {
 	struct controlvm_message_packet *cmd = &inmsg->cmd;
-	ulong busNo = cmd->destroy_bus.bus_no;
-	struct visorchipset_bus_info *pBusInfo;
+	ulong bus_no = cmd->destroy_bus.bus_no;
+	struct visorchipset_bus_info *bus_info;
 	int rc = CONTROLVM_RESP_SUCCESS;
 
-	pBusInfo = findbus(&BusInfoList, busNo);
-	if (!pBusInfo) {
-		LOGERR("CONTROLVM_BUS_DESTROY Failed: bus %lu invalid", busNo);
+	bus_info = findbus(&bus_info_list, bus_no);
+	if (!bus_info)
 		rc = -CONTROLVM_RESP_ERROR_BUS_INVALID;
-		goto Away;
-	}
-	if (pBusInfo->state.created == 0) {
-		LOGERR("CONTROLVM_BUS_DESTROY Failed: bus %lu already destroyed",
-		     busNo);
+	else if (bus_info->state.created == 0)
 		rc = -CONTROLVM_RESP_ERROR_ALREADY_DONE;
-		goto Away;
-	}
 
-Away:
-	bus_epilog(busNo, CONTROLVM_BUS_DESTROY, &inmsg->hdr,
+	bus_epilog(bus_no, CONTROLVM_BUS_DESTROY, &inmsg->hdr,
 		   rc, inmsg->hdr.flags.response_expected == 1);
 }
 
 static void
-bus_configure(struct controlvm_message *inmsg, PARSER_CONTEXT *parser_ctx)
+bus_configure(struct controlvm_message *inmsg,
+	      struct parser_context *parser_ctx)
 {
 	struct controlvm_message_packet *cmd = &inmsg->cmd;
-	ulong busNo = cmd->configure_bus.bus_no;
-	struct visorchipset_bus_info *pBusInfo = NULL;
+	ulong bus_no = cmd->configure_bus.bus_no;
+	struct visorchipset_bus_info *bus_info = NULL;
 	int rc = CONTROLVM_RESP_SUCCESS;
 	char s[99];
 
-	busNo = cmd->configure_bus.bus_no;
-	POSTCODE_LINUX_3(BUS_CONFIGURE_ENTRY_PC, busNo, POSTCODE_SEVERITY_INFO);
+	bus_no = cmd->configure_bus.bus_no;
+	POSTCODE_LINUX_3(BUS_CONFIGURE_ENTRY_PC, bus_no,
+			 POSTCODE_SEVERITY_INFO);
 
-	pBusInfo = findbus(&BusInfoList, busNo);
-	if (!pBusInfo) {
-		LOGERR("CONTROLVM_BUS_CONFIGURE Failed: bus %lu invalid",
-		       busNo);
-		POSTCODE_LINUX_3(BUS_CONFIGURE_FAILURE_PC, busNo,
+	bus_info = findbus(&bus_info_list, bus_no);
+	if (!bus_info) {
+		POSTCODE_LINUX_3(BUS_CONFIGURE_FAILURE_PC, bus_no,
 				 POSTCODE_SEVERITY_ERR);
 		rc = -CONTROLVM_RESP_ERROR_BUS_INVALID;
-		goto Away;
-	}
-	if (pBusInfo->state.created == 0) {
-		LOGERR("CONTROLVM_BUS_CONFIGURE Failed: Invalid bus %lu - not created yet",
-		     busNo);
-		POSTCODE_LINUX_3(BUS_CONFIGURE_FAILURE_PC, busNo,
+	} else if (bus_info->state.created == 0) {
+		POSTCODE_LINUX_3(BUS_CONFIGURE_FAILURE_PC, bus_no,
 				 POSTCODE_SEVERITY_ERR);
 		rc = -CONTROLVM_RESP_ERROR_BUS_INVALID;
-		goto Away;
-	}
-	/* TBD - add this check to other commands also... */
-	if (pBusInfo->pending_msg_hdr.id != CONTROLVM_INVALID) {
-		LOGERR("CONTROLVM_BUS_CONFIGURE Failed: bus %lu MsgId=%u outstanding",
-		     busNo, (uint) pBusInfo->pending_msg_hdr.id);
-		POSTCODE_LINUX_3(BUS_CONFIGURE_FAILURE_PC, busNo,
+	} else if (bus_info->pending_msg_hdr.id != CONTROLVM_INVALID) {
+		POSTCODE_LINUX_3(BUS_CONFIGURE_FAILURE_PC, bus_no,
 				 POSTCODE_SEVERITY_ERR);
 		rc = -CONTROLVM_RESP_ERROR_MESSAGE_ID_INVALID_FOR_CLIENT;
-		goto Away;
-	}
-
-	pBusInfo->partition_handle = cmd->configure_bus.guest_handle;
-	pBusInfo->partition_uuid = parser_id_get(parser_ctx);
-	parser_param_start(parser_ctx, PARSERSTRING_NAME);
-	pBusInfo->name = parser_string_get(parser_ctx);
+	} else {
+		bus_info->partition_handle = cmd->configure_bus.guest_handle;
+		bus_info->partition_uuid = parser_id_get(parser_ctx);
+		parser_param_start(parser_ctx, PARSERSTRING_NAME);
+		bus_info->name = parser_string_get(parser_ctx);
 
-	visorchannel_uuid_id(&pBusInfo->partition_uuid, s);
-	POSTCODE_LINUX_3(BUS_CONFIGURE_EXIT_PC, busNo, POSTCODE_SEVERITY_INFO);
-Away:
-	bus_epilog(busNo, CONTROLVM_BUS_CONFIGURE, &inmsg->hdr,
+		visorchannel_uuid_id(&bus_info->partition_uuid, s);
+		POSTCODE_LINUX_3(BUS_CONFIGURE_EXIT_PC, bus_no,
+				 POSTCODE_SEVERITY_INFO);
+	}
+	bus_epilog(bus_no, CONTROLVM_BUS_CONFIGURE, &inmsg->hdr,
 		   rc, inmsg->hdr.flags.response_expected == 1);
 }
 
@@ -1234,191 +1145,158 @@ static void
 my_device_create(struct controlvm_message *inmsg)
 {
 	struct controlvm_message_packet *cmd = &inmsg->cmd;
-	ulong busNo = cmd->create_device.bus_no;
-	ulong devNo = cmd->create_device.dev_no;
-	struct visorchipset_device_info *pDevInfo = NULL;
-	struct visorchipset_bus_info *pBusInfo = NULL;
+	ulong bus_no = cmd->create_device.bus_no;
+	ulong dev_no = cmd->create_device.dev_no;
+	struct visorchipset_device_info *dev_info = NULL;
+	struct visorchipset_bus_info *bus_info = NULL;
 	int rc = CONTROLVM_RESP_SUCCESS;
 
-	pDevInfo = finddevice(&DevInfoList, busNo, devNo);
-	if (pDevInfo && (pDevInfo->state.created == 1)) {
-		LOGERR("CONTROLVM_DEVICE_CREATE Failed: busNo=%lu, devNo=%lu already exists",
-		     busNo, devNo);
-		POSTCODE_LINUX_4(DEVICE_CREATE_FAILURE_PC, devNo, busNo,
+	dev_info = finddevice(&dev_info_list, bus_no, dev_no);
+	if (dev_info && (dev_info->state.created == 1)) {
+		POSTCODE_LINUX_4(DEVICE_CREATE_FAILURE_PC, dev_no, bus_no,
 				 POSTCODE_SEVERITY_ERR);
 		rc = -CONTROLVM_RESP_ERROR_ALREADY_DONE;
-		goto Away;
+		goto cleanup;
 	}
-	pBusInfo = findbus(&BusInfoList, busNo);
-	if (!pBusInfo) {
-		LOGERR("CONTROLVM_DEVICE_CREATE Failed: Invalid bus %lu - out of range",
-		     busNo);
-		POSTCODE_LINUX_4(DEVICE_CREATE_FAILURE_PC, devNo, busNo,
+	bus_info = findbus(&bus_info_list, bus_no);
+	if (!bus_info) {
+		POSTCODE_LINUX_4(DEVICE_CREATE_FAILURE_PC, dev_no, bus_no,
 				 POSTCODE_SEVERITY_ERR);
 		rc = -CONTROLVM_RESP_ERROR_BUS_INVALID;
-		goto Away;
+		goto cleanup;
 	}
-	if (pBusInfo->state.created == 0) {
-		LOGERR("CONTROLVM_DEVICE_CREATE Failed: Invalid bus %lu - not created yet",
-		     busNo);
-		POSTCODE_LINUX_4(DEVICE_CREATE_FAILURE_PC, devNo, busNo,
+	if (bus_info->state.created == 0) {
+		POSTCODE_LINUX_4(DEVICE_CREATE_FAILURE_PC, dev_no, bus_no,
 				 POSTCODE_SEVERITY_ERR);
 		rc = -CONTROLVM_RESP_ERROR_BUS_INVALID;
-		goto Away;
+		goto cleanup;
 	}
-	pDevInfo = kzalloc(sizeof(struct visorchipset_device_info), GFP_KERNEL);
-	if (pDevInfo == NULL) {
-		LOGERR("CONTROLVM_DEVICE_CREATE Failed: busNo=%lu, devNo=%lu kmaloc failed",
-		     busNo, devNo);
-		POSTCODE_LINUX_4(DEVICE_CREATE_FAILURE_PC, devNo, busNo,
+	dev_info = kzalloc(sizeof(*dev_info), GFP_KERNEL);
+	if (!dev_info) {
+		POSTCODE_LINUX_4(DEVICE_CREATE_FAILURE_PC, dev_no, bus_no,
 				 POSTCODE_SEVERITY_ERR);
 		rc = -CONTROLVM_RESP_ERROR_KMALLOC_FAILED;
-		goto Away;
+		goto cleanup;
 	}
 
-	INIT_LIST_HEAD(&pDevInfo->entry);
-	pDevInfo->bus_no = busNo;
-	pDevInfo->dev_no = devNo;
-	pDevInfo->dev_inst_uuid = cmd->create_device.dev_inst_uuid;
-	POSTCODE_LINUX_4(DEVICE_CREATE_ENTRY_PC, devNo, busNo,
+	INIT_LIST_HEAD(&dev_info->entry);
+	dev_info->bus_no = bus_no;
+	dev_info->dev_no = dev_no;
+	dev_info->dev_inst_uuid = cmd->create_device.dev_inst_uuid;
+	POSTCODE_LINUX_4(DEVICE_CREATE_ENTRY_PC, dev_no, bus_no,
 			 POSTCODE_SEVERITY_INFO);
 
 	if (inmsg->hdr.flags.test_message == 1)
-		pDevInfo->chan_info.addr_type = ADDRTYPE_LOCALTEST;
+		dev_info->chan_info.addr_type = ADDRTYPE_LOCALTEST;
 	else
-		pDevInfo->chan_info.addr_type = ADDRTYPE_LOCALPHYSICAL;
-	pDevInfo->chan_info.channel_addr = cmd->create_device.channel_addr;
-	pDevInfo->chan_info.n_channel_bytes = cmd->create_device.channel_bytes;
-	pDevInfo->chan_info.channel_type_uuid =
+		dev_info->chan_info.addr_type = ADDRTYPE_LOCALPHYSICAL;
+	dev_info->chan_info.channel_addr = cmd->create_device.channel_addr;
+	dev_info->chan_info.n_channel_bytes = cmd->create_device.channel_bytes;
+	dev_info->chan_info.channel_type_uuid =
 			cmd->create_device.data_type_uuid;
-	pDevInfo->chan_info.intr = cmd->create_device.intr;
-	list_add(&pDevInfo->entry, &DevInfoList);
-	POSTCODE_LINUX_4(DEVICE_CREATE_EXIT_PC, devNo, busNo,
+	dev_info->chan_info.intr = cmd->create_device.intr;
+	list_add(&dev_info->entry, &dev_info_list);
+	POSTCODE_LINUX_4(DEVICE_CREATE_EXIT_PC, dev_no, bus_no,
 			 POSTCODE_SEVERITY_INFO);
-Away:
+cleanup:
 	/* get the bus and devNo for DiagPool channel */
-	if (pDevInfo &&
-	    is_diagpool_channel(pDevInfo->chan_info.channel_type_uuid)) {
-		g_diagpoolBusNo = busNo;
-		g_diagpoolDevNo = devNo;
-		LOGINF("CONTROLVM_DEVICE_CREATE for DiagPool channel: busNo=%lu, devNo=%lu",
-		     g_diagpoolBusNo, g_diagpoolDevNo);
-	}
-	device_epilog(busNo, devNo, segment_state_running,
+	if (dev_info &&
+	    is_diagpool_channel(dev_info->chan_info.channel_type_uuid)) {
+		g_diagpool_bus_no = bus_no;
+		g_diagpool_dev_no = dev_no;
+	}
+	device_epilog(bus_no, dev_no, segment_state_running,
 		      CONTROLVM_DEVICE_CREATE, &inmsg->hdr, rc,
 		      inmsg->hdr.flags.response_expected == 1,
-		      FOR_VISORBUS(pDevInfo->chan_info.channel_type_uuid));
+		      FOR_VISORBUS(dev_info->chan_info.channel_type_uuid));
 }
 
 static void
 my_device_changestate(struct controlvm_message *inmsg)
 {
 	struct controlvm_message_packet *cmd = &inmsg->cmd;
-	ulong busNo = cmd->device_change_state.bus_no;
-	ulong devNo = cmd->device_change_state.dev_no;
+	ulong bus_no = cmd->device_change_state.bus_no;
+	ulong dev_no = cmd->device_change_state.dev_no;
 	struct spar_segment_state state = cmd->device_change_state.state;
-	struct visorchipset_device_info *pDevInfo = NULL;
+	struct visorchipset_device_info *dev_info = NULL;
 	int rc = CONTROLVM_RESP_SUCCESS;
 
-	pDevInfo = finddevice(&DevInfoList, busNo, devNo);
-	if (!pDevInfo) {
-		LOGERR("CONTROLVM_DEVICE_CHANGESTATE Failed: busNo=%lu, devNo=%lu invalid (doesn't exist)",
-		     busNo, devNo);
-		POSTCODE_LINUX_4(DEVICE_CHANGESTATE_FAILURE_PC, devNo, busNo,
+	dev_info = finddevice(&dev_info_list, bus_no, dev_no);
+	if (!dev_info) {
+		POSTCODE_LINUX_4(DEVICE_CHANGESTATE_FAILURE_PC, dev_no, bus_no,
 				 POSTCODE_SEVERITY_ERR);
 		rc = -CONTROLVM_RESP_ERROR_DEVICE_INVALID;
-		goto Away;
-	}
-	if (pDevInfo->state.created == 0) {
-		LOGERR("CONTROLVM_DEVICE_CHANGESTATE Failed: busNo=%lu, devNo=%lu invalid (not created)",
-		     busNo, devNo);
-		POSTCODE_LINUX_4(DEVICE_CHANGESTATE_FAILURE_PC, devNo, busNo,
+	} else if (dev_info->state.created == 0) {
+		POSTCODE_LINUX_4(DEVICE_CHANGESTATE_FAILURE_PC, dev_no, bus_no,
 				 POSTCODE_SEVERITY_ERR);
 		rc = -CONTROLVM_RESP_ERROR_DEVICE_INVALID;
 	}
-Away:
-	if ((rc >= CONTROLVM_RESP_SUCCESS) && pDevInfo)
-		device_epilog(busNo, devNo, state, CONTROLVM_DEVICE_CHANGESTATE,
-			      &inmsg->hdr, rc,
+	if ((rc >= CONTROLVM_RESP_SUCCESS) && dev_info)
+		device_epilog(bus_no, dev_no, state,
+			      CONTROLVM_DEVICE_CHANGESTATE, &inmsg->hdr, rc,
 			      inmsg->hdr.flags.response_expected == 1,
 			      FOR_VISORBUS(
-					pDevInfo->chan_info.channel_type_uuid));
+					dev_info->chan_info.channel_type_uuid));
 }
 
 static void
 my_device_destroy(struct controlvm_message *inmsg)
 {
 	struct controlvm_message_packet *cmd = &inmsg->cmd;
-	ulong busNo = cmd->destroy_device.bus_no;
-	ulong devNo = cmd->destroy_device.dev_no;
-	struct visorchipset_device_info *pDevInfo = NULL;
+	ulong bus_no = cmd->destroy_device.bus_no;
+	ulong dev_no = cmd->destroy_device.dev_no;
+	struct visorchipset_device_info *dev_info = NULL;
 	int rc = CONTROLVM_RESP_SUCCESS;
 
-	pDevInfo = finddevice(&DevInfoList, busNo, devNo);
-	if (!pDevInfo) {
-		LOGERR("CONTROLVM_DEVICE_DESTROY Failed: busNo=%lu, devNo=%lu invalid",
-		     busNo, devNo);
+	dev_info = finddevice(&dev_info_list, bus_no, dev_no);
+	if (!dev_info)
 		rc = -CONTROLVM_RESP_ERROR_DEVICE_INVALID;
-		goto Away;
-	}
-	if (pDevInfo->state.created == 0) {
-		LOGERR("CONTROLVM_DEVICE_DESTROY Failed: busNo=%lu, devNo=%lu already destroyed",
-		     busNo, devNo);
+	else if (dev_info->state.created == 0)
 		rc = -CONTROLVM_RESP_ERROR_ALREADY_DONE;
-	}
 
-Away:
-	if ((rc >= CONTROLVM_RESP_SUCCESS) && pDevInfo)
-		device_epilog(busNo, devNo, segment_state_running,
+	if ((rc >= CONTROLVM_RESP_SUCCESS) && dev_info)
+		device_epilog(bus_no, dev_no, segment_state_running,
 			      CONTROLVM_DEVICE_DESTROY, &inmsg->hdr, rc,
 			      inmsg->hdr.flags.response_expected == 1,
 			      FOR_VISORBUS(
-					pDevInfo->chan_info.channel_type_uuid));
+					dev_info->chan_info.channel_type_uuid));
 }
 
 /* When provided with the physical address of the controlvm channel
  * (phys_addr), the offset to the payload area we need to manage
  * (offset), and the size of this payload area (bytes), fills in the
- * CONTROLVM_PAYLOAD_INFO struct.  Returns TRUE for success or FALSE
+ * controlvm_payload_info struct.  Returns TRUE for success or FALSE
  * for failure.
  */
 static int
 initialize_controlvm_payload_info(HOSTADDRESS phys_addr, u64 offset, u32 bytes,
-				  CONTROLVM_PAYLOAD_INFO *info)
+				  struct controlvm_payload_info *info)
 {
 	u8 __iomem *payload = NULL;
 	int rc = CONTROLVM_RESP_SUCCESS;
 
-	if (info == NULL) {
-		LOGERR("HUH ? CONTROLVM_PAYLOAD_INIT Failed : Programmer check at %s:%d",
-		     __FILE__, __LINE__);
+	if (!info) {
 		rc = -CONTROLVM_RESP_ERROR_PAYLOAD_INVALID;
-		goto Away;
+		goto cleanup;
 	}
-	memset(info, 0, sizeof(CONTROLVM_PAYLOAD_INFO));
+	memset(info, 0, sizeof(struct controlvm_payload_info));
 	if ((offset == 0) || (bytes == 0)) {
-		LOGERR("CONTROLVM_PAYLOAD_INIT Failed: request_payload_offset=%llu request_payload_bytes=%llu!",
-		     (u64) offset, (u64) bytes);
 		rc = -CONTROLVM_RESP_ERROR_PAYLOAD_INVALID;
-		goto Away;
+		goto cleanup;
 	}
 	payload = ioremap_cache(phys_addr + offset, bytes);
-	if (payload == NULL) {
-		LOGERR("CONTROLVM_PAYLOAD_INIT Failed: ioremap_cache %llu for %llu bytes failed",
-		     (u64) offset, (u64) bytes);
+	if (!payload) {
 		rc = -CONTROLVM_RESP_ERROR_IOREMAP_FAILED;
-		goto Away;
+		goto cleanup;
 	}
 
 	info->offset = offset;
 	info->bytes = bytes;
 	info->ptr = payload;
-	LOGINF("offset=%llu, bytes=%lu, ptr=%p",
-	       (u64) (info->offset), (ulong) (info->bytes), info->ptr);
 
-Away:
+cleanup:
 	if (rc < 0) {
-		if (payload != NULL) {
+		if (payload) {
 			iounmap(payload);
 			payload = NULL;
 		}
@@ -1427,43 +1305,41 @@ Away:
 }
 
 static void
-destroy_controlvm_payload_info(CONTROLVM_PAYLOAD_INFO *info)
+destroy_controlvm_payload_info(struct controlvm_payload_info *info)
 {
-	if (info->ptr != NULL) {
+	if (info->ptr) {
 		iounmap(info->ptr);
 		info->ptr = NULL;
 	}
-	memset(info, 0, sizeof(CONTROLVM_PAYLOAD_INFO));
+	memset(info, 0, sizeof(struct controlvm_payload_info));
 }
 
 static void
 initialize_controlvm_payload(void)
 {
-	HOSTADDRESS phys_addr = visorchannel_get_physaddr(ControlVm_channel);
-	u64 payloadOffset = 0;
-	u32 payloadBytes = 0;
+	HOSTADDRESS phys_addr = visorchannel_get_physaddr(controlvm_channel);
+	u64 payload_offset = 0;
+	u32 payload_bytes = 0;
 
-	if (visorchannel_read(ControlVm_channel,
+	if (visorchannel_read(controlvm_channel,
 			      offsetof(struct spar_controlvm_channel_protocol,
 				       request_payload_offset),
-			      &payloadOffset, sizeof(payloadOffset)) < 0) {
-		LOGERR("CONTROLVM_PAYLOAD_INIT Failed to read controlvm channel!");
+			      &payload_offset, sizeof(payload_offset)) < 0) {
 		POSTCODE_LINUX_2(CONTROLVM_INIT_FAILURE_PC,
 				 POSTCODE_SEVERITY_ERR);
 		return;
 	}
-	if (visorchannel_read(ControlVm_channel,
+	if (visorchannel_read(controlvm_channel,
 			      offsetof(struct spar_controlvm_channel_protocol,
 				       request_payload_bytes),
-			      &payloadBytes, sizeof(payloadBytes)) < 0) {
-		LOGERR("CONTROLVM_PAYLOAD_INIT Failed to read controlvm channel!");
+			      &payload_bytes, sizeof(payload_bytes)) < 0) {
 		POSTCODE_LINUX_2(CONTROLVM_INIT_FAILURE_PC,
 				 POSTCODE_SEVERITY_ERR);
 		return;
 	}
 	initialize_controlvm_payload_info(phys_addr,
-					  payloadOffset, payloadBytes,
-					  &ControlVm_payload_info);
+					  payload_offset, payload_bytes,
+					  &controlvm_payload_info);
 }
 
 /*  Send ACTION=online for DEVPATH=/sys/devices/platform/visorchipset.
@@ -1472,7 +1348,7 @@ initialize_controlvm_payload(void)
 int
 visorchipset_chipset_ready(void)
 {
-	kobject_uevent(&Visorchipset_platform_device.dev.kobj, KOBJ_ONLINE);
+	kobject_uevent(&visorchipset_platform_device.dev.kobj, KOBJ_ONLINE);
 	return CONTROLVM_RESP_SUCCESS;
 }
 EXPORT_SYMBOL_GPL(visorchipset_chipset_ready);
@@ -1484,7 +1360,7 @@ visorchipset_chipset_selftest(void)
 	char *envp[] = { env_selftest, NULL };
 
 	sprintf(env_selftest, "SPARSP_SELFTEST=%d", 1);
-	kobject_uevent_env(&Visorchipset_platform_device.dev.kobj, KOBJ_CHANGE,
+	kobject_uevent_env(&visorchipset_platform_device.dev.kobj, KOBJ_CHANGE,
 			   envp);
 	return CONTROLVM_RESP_SUCCESS;
 }
@@ -1496,49 +1372,48 @@ EXPORT_SYMBOL_GPL(visorchipset_chipset_selftest);
 int
 visorchipset_chipset_notready(void)
 {
-	kobject_uevent(&Visorchipset_platform_device.dev.kobj, KOBJ_OFFLINE);
+	kobject_uevent(&visorchipset_platform_device.dev.kobj, KOBJ_OFFLINE);
 	return CONTROLVM_RESP_SUCCESS;
 }
 EXPORT_SYMBOL_GPL(visorchipset_chipset_notready);
 
 static void
-chipset_ready(struct controlvm_message_header *msgHdr)
+chipset_ready(struct controlvm_message_header *msg_hdr)
 {
 	int rc = visorchipset_chipset_ready();
 
 	if (rc != CONTROLVM_RESP_SUCCESS)
 		rc = -rc;
-	if (msgHdr->flags.response_expected && !visorchipset_holdchipsetready)
-		controlvm_respond(msgHdr, rc);
-	if (msgHdr->flags.response_expected && visorchipset_holdchipsetready) {
+	if (msg_hdr->flags.response_expected && !visorchipset_holdchipsetready)
+		controlvm_respond(msg_hdr, rc);
+	if (msg_hdr->flags.response_expected && visorchipset_holdchipsetready) {
 		/* Send CHIPSET_READY response when all modules have been loaded
 		 * and disks mounted for the partition
 		 */
-		g_ChipSetMsgHdr = *msgHdr;
-		LOGINF("Holding CHIPSET_READY response");
+		g_chipset_msg_hdr = *msg_hdr;
 	}
 }
 
 static void
-chipset_selftest(struct controlvm_message_header *msgHdr)
+chipset_selftest(struct controlvm_message_header *msg_hdr)
 {
 	int rc = visorchipset_chipset_selftest();
 
 	if (rc != CONTROLVM_RESP_SUCCESS)
 		rc = -rc;
-	if (msgHdr->flags.response_expected)
-		controlvm_respond(msgHdr, rc);
+	if (msg_hdr->flags.response_expected)
+		controlvm_respond(msg_hdr, rc);
 }
 
 static void
-chipset_notready(struct controlvm_message_header *msgHdr)
+chipset_notready(struct controlvm_message_header *msg_hdr)
 {
 	int rc = visorchipset_chipset_notready();
 
 	if (rc != CONTROLVM_RESP_SUCCESS)
 		rc = -rc;
-	if (msgHdr->flags.response_expected)
-		controlvm_respond(msgHdr, rc);
+	if (msg_hdr->flags.response_expected)
+		controlvm_respond(msg_hdr, rc);
 }
 
 /* This is your "one-stop" shop for grabbing the next message from the
@@ -1547,14 +1422,11 @@ chipset_notready(struct controlvm_message_header *msgHdr)
 static BOOL
 read_controlvm_event(struct controlvm_message *msg)
 {
-	if (visorchannel_signalremove(ControlVm_channel,
+	if (visorchannel_signalremove(controlvm_channel,
 				      CONTROLVM_QUEUE_EVENT, msg)) {
 		/* got a message */
-		if (msg->hdr.flags.test_message == 1) {
-			LOGERR("ignoring bad CONTROLVM_QUEUE_EVENT msg with controlvm_msg_id=0x%x because Flags.testMessage is nonsensical (=1)",
-			       msg->hdr.id);
+		if (msg->hdr.flags.test_message == 1)
 			return FALSE;
-		}
 		return TRUE;
 	}
 	return FALSE;
@@ -1604,10 +1476,10 @@ parahotplug_next_expiration(void)
 static struct parahotplug_request *
 parahotplug_request_create(struct controlvm_message *msg)
 {
-	struct parahotplug_request *req =
-	    kmalloc(sizeof(struct parahotplug_request),
-		    GFP_KERNEL|__GFP_NORETRY);
-	if (req == NULL)
+	struct parahotplug_request *req;
+
+	req = kmalloc(sizeof(*req), GFP_KERNEL | __GFP_NORETRY);
+	if (!req)
 		return NULL;
 
 	req->id = parahotplug_next_id();
@@ -1652,13 +1524,7 @@ parahotplug_request_kickoff(struct parahotplug_request *req)
 	sprintf(env_func, "SPAR_PARAHOTPLUG_FUNCTION=%d",
 		cmd->device_change_state.dev_no & 0x7);
 
-	LOGINF("parahotplug_request_kickoff: state=%d, bdf=%d/%d/%d, id=%u\n",
-	       cmd->device_change_state.state.active,
-	       cmd->device_change_state.bus_no,
-	       cmd->device_change_state.dev_no >> 3,
-	       cmd->device_change_state.dev_no & 7, req->id);
-
-	kobject_uevent_env(&Visorchipset_platform_device.dev.kobj, KOBJ_CHANGE,
+	kobject_uevent_env(&visorchipset_platform_device.dev.kobj, KOBJ_CHANGE,
 			   envp);
 }
 
@@ -1672,23 +1538,25 @@ parahotplug_process_list(void)
 	struct list_head *pos = NULL;
 	struct list_head *tmp = NULL;
 
-	spin_lock(&Parahotplug_request_list_lock);
+	spin_lock(&parahotplug_request_list_lock);
 
-	list_for_each_safe(pos, tmp, &Parahotplug_request_list) {
+	list_for_each_safe(pos, tmp, &parahotplug_request_list) {
 		struct parahotplug_request *req =
 		    list_entry(pos, struct parahotplug_request, list);
-		if (time_after_eq(jiffies, req->expiration)) {
-			list_del(pos);
-			if (req->msg.hdr.flags.response_expected)
-				controlvm_respond_physdev_changestate(
-					&req->msg.hdr,
-					CONTROLVM_RESP_ERROR_DEVICE_UDEV_TIMEOUT,
-					req->msg.cmd.device_change_state.state);
-			parahotplug_request_destroy(req);
-		}
+
+		if (!time_after_eq(jiffies, req->expiration))
+			continue;
+
+		list_del(pos);
+		if (req->msg.hdr.flags.response_expected)
+			controlvm_respond_physdev_changestate(
+				&req->msg.hdr,
+				CONTROLVM_RESP_ERROR_DEVICE_UDEV_TIMEOUT,
+				req->msg.cmd.device_change_state.state);
+		parahotplug_request_destroy(req);
 	}
 
-	spin_unlock(&Parahotplug_request_list_lock);
+	spin_unlock(&parahotplug_request_list_lock);
 }
 
 /*
@@ -1702,10 +1570,10 @@ parahotplug_request_complete(int id, u16 active)
 	struct list_head *pos = NULL;
 	struct list_head *tmp = NULL;
 
-	spin_lock(&Parahotplug_request_list_lock);
+	spin_lock(&parahotplug_request_list_lock);
 
 	/* Look for a request matching "id". */
-	list_for_each_safe(pos, tmp, &Parahotplug_request_list) {
+	list_for_each_safe(pos, tmp, &parahotplug_request_list) {
 		struct parahotplug_request *req =
 		    list_entry(pos, struct parahotplug_request, list);
 		if (req->id == id) {
@@ -1713,7 +1581,7 @@ parahotplug_request_complete(int id, u16 active)
 			 * respond.
 			 */
 			list_del(pos);
-			spin_unlock(&Parahotplug_request_list_lock);
+			spin_unlock(&parahotplug_request_list_lock);
 			req->msg.cmd.device_change_state.state.active = active;
 			if (req->msg.hdr.flags.response_expected)
 				controlvm_respond_physdev_changestate(
@@ -1724,7 +1592,7 @@ parahotplug_request_complete(int id, u16 active)
 		}
 	}
 
-	spin_unlock(&Parahotplug_request_list_lock);
+	spin_unlock(&parahotplug_request_list_lock);
 	return -1;
 }
 
@@ -1738,10 +1606,8 @@ parahotplug_process_message(struct controlvm_message *inmsg)
 
 	req = parahotplug_request_create(inmsg);
 
-	if (req == NULL) {
-		LOGERR("parahotplug_process_message: couldn't allocate request");
+	if (!req)
 		return;
-	}
 
 	if (inmsg->cmd.device_change_state.state.active) {
 		/* For enable messages, just respond with success
@@ -1755,8 +1621,8 @@ parahotplug_process_message(struct controlvm_message *inmsg)
 		*/
 		parahotplug_request_kickoff(req);
 		controlvm_respond_physdev_changestate(&inmsg->hdr,
-				CONTROLVM_RESP_SUCCESS, inmsg->cmd.
-				device_change_state.state);
+			CONTROLVM_RESP_SUCCESS,
+			inmsg->cmd.device_change_state.state);
 		parahotplug_request_destroy(req);
 	} else {
 		/* For disable messages, add the request to the
@@ -1764,9 +1630,9 @@ parahotplug_process_message(struct controlvm_message *inmsg)
 		* won't get responded to until the script has
 		* indicated it's done.
 		*/
-		spin_lock(&Parahotplug_request_list_lock);
-		list_add_tail(&(req->list), &Parahotplug_request_list);
-		spin_unlock(&Parahotplug_request_list_lock);
+		spin_lock(&parahotplug_request_list_lock);
+		list_add_tail(&req->list, &parahotplug_request_list);
+		spin_unlock(&parahotplug_request_list_lock);
 
 		parahotplug_request_kickoff(req);
 	}
@@ -1787,135 +1653,94 @@ static BOOL
 handle_command(struct controlvm_message inmsg, HOSTADDRESS channel_addr)
 {
 	struct controlvm_message_packet *cmd = &inmsg.cmd;
-	u64 parametersAddr = 0;
-	u32 parametersBytes = 0;
-	PARSER_CONTEXT *parser_ctx = NULL;
-	BOOL isLocalAddr = FALSE;
+	u64 parm_addr = 0;
+	u32 parm_bytes = 0;
+	struct parser_context *parser_ctx = NULL;
+	bool local_addr = false;
 	struct controlvm_message ackmsg;
 
 	/* create parsing context if necessary */
-	isLocalAddr = (inmsg.hdr.flags.test_message == 1);
-	if (channel_addr == 0) {
-		LOGERR("HUH? channel_addr is 0!");
+	local_addr = (inmsg.hdr.flags.test_message == 1);
+	if (channel_addr == 0)
 		return TRUE;
-	}
-	parametersAddr = channel_addr + inmsg.hdr.payload_vm_offset;
-	parametersBytes = inmsg.hdr.payload_bytes;
+	parm_addr = channel_addr + inmsg.hdr.payload_vm_offset;
+	parm_bytes = inmsg.hdr.payload_bytes;
 
 	/* Parameter and channel addresses within test messages actually lie
 	 * within our OS-controlled memory.  We need to know that, because it
 	 * makes a difference in how we compute the virtual address.
 	 */
-	if (parametersAddr != 0 && parametersBytes != 0) {
+	if (parm_addr != 0 && parm_bytes != 0) {
 		BOOL retry = FALSE;
 
 		parser_ctx =
-		    parser_init_byteStream(parametersAddr, parametersBytes,
-					   isLocalAddr, &retry);
-		if (!parser_ctx) {
-			if (retry) {
-				LOGWRN("throttling to copy payload");
-				return FALSE;
-			}
-			LOGWRN("parsing failed");
-			LOGWRN("inmsg.hdr.Id=0x%lx", (ulong) inmsg.hdr.id);
-			LOGWRN("parametersAddr=0x%llx", (u64) parametersAddr);
-			LOGWRN("parametersBytes=%lu", (ulong) parametersBytes);
-			LOGWRN("isLocalAddr=%d", isLocalAddr);
-		}
+		    parser_init_byte_stream(parm_addr, parm_bytes,
+					    local_addr, &retry);
+		if (!parser_ctx && retry)
+			return FALSE;
 	}
 
-	if (!isLocalAddr) {
+	if (!local_addr) {
 		controlvm_init_response(&ackmsg, &inmsg.hdr,
 					CONTROLVM_RESP_SUCCESS);
-		if ((ControlVm_channel)
-		    &&
-		    (!visorchannel_signalinsert
-		     (ControlVm_channel, CONTROLVM_QUEUE_ACK, &ackmsg)))
-			LOGWRN("failed to send ACK failed");
+		if (controlvm_channel)
+			visorchannel_signalinsert(controlvm_channel,
+						  CONTROLVM_QUEUE_ACK,
+						  &ackmsg);
 	}
 	switch (inmsg.hdr.id) {
 	case CONTROLVM_CHIPSET_INIT:
-		LOGINF("CHIPSET_INIT(#busses=%lu,#switches=%lu)",
-		       (ulong) inmsg.cmd.init_chipset.bus_count,
-		       (ulong) inmsg.cmd.init_chipset.switch_count);
 		chipset_init(&inmsg);
 		break;
 	case CONTROLVM_BUS_CREATE:
-		LOGINF("BUS_CREATE(%lu,#devs=%lu)",
-		       (ulong) cmd->create_bus.bus_no,
-		       (ulong) cmd->create_bus.dev_count);
 		bus_create(&inmsg);
 		break;
 	case CONTROLVM_BUS_DESTROY:
-		LOGINF("BUS_DESTROY(%lu)", (ulong) cmd->destroy_bus.bus_no);
 		bus_destroy(&inmsg);
 		break;
 	case CONTROLVM_BUS_CONFIGURE:
-		LOGINF("BUS_CONFIGURE(%lu)", (ulong) cmd->configure_bus.bus_no);
 		bus_configure(&inmsg, parser_ctx);
 		break;
 	case CONTROLVM_DEVICE_CREATE:
-		LOGINF("DEVICE_CREATE(%lu,%lu)",
-		       (ulong) cmd->create_device.bus_no,
-		       (ulong) cmd->create_device.dev_no);
 		my_device_create(&inmsg);
 		break;
 	case CONTROLVM_DEVICE_CHANGESTATE:
 		if (cmd->device_change_state.flags.phys_device) {
-			LOGINF("DEVICE_CHANGESTATE for physical device (%lu,%lu, active=%lu)",
-			     (ulong) cmd->device_change_state.bus_no,
-			     (ulong) cmd->device_change_state.dev_no,
-			     (ulong) cmd->device_change_state.state.active);
 			parahotplug_process_message(&inmsg);
 		} else {
-			LOGINF("DEVICE_CHANGESTATE for virtual device (%lu,%lu, state.Alive=0x%lx)",
-			     (ulong) cmd->device_change_state.bus_no,
-			     (ulong) cmd->device_change_state.dev_no,
-			     (ulong) cmd->device_change_state.state.alive);
 			/* save the hdr and cmd structures for later use */
 			/* when sending back the response to Command */
 			my_device_changestate(&inmsg);
-			g_DiagMsgHdr = inmsg.hdr;
-			g_DeviceChangeStatePacket = inmsg.cmd;
+			g_diag_msg_hdr = inmsg.hdr;
+			g_devicechangestate_packet = inmsg.cmd;
 			break;
 		}
 		break;
 	case CONTROLVM_DEVICE_DESTROY:
-		LOGINF("DEVICE_DESTROY(%lu,%lu)",
-		       (ulong) cmd->destroy_device.bus_no,
-		       (ulong) cmd->destroy_device.dev_no);
 		my_device_destroy(&inmsg);
 		break;
 	case CONTROLVM_DEVICE_CONFIGURE:
-		LOGINF("DEVICE_CONFIGURE(%lu,%lu)",
-		       (ulong) cmd->configure_device.bus_no,
-		       (ulong) cmd->configure_device.dev_no);
 		/* no op for now, just send a respond that we passed */
 		if (inmsg.hdr.flags.response_expected)
 			controlvm_respond(&inmsg.hdr, CONTROLVM_RESP_SUCCESS);
 		break;
 	case CONTROLVM_CHIPSET_READY:
-		LOGINF("CHIPSET_READY");
 		chipset_ready(&inmsg.hdr);
 		break;
 	case CONTROLVM_CHIPSET_SELFTEST:
-		LOGINF("CHIPSET_SELFTEST");
 		chipset_selftest(&inmsg.hdr);
 		break;
 	case CONTROLVM_CHIPSET_STOP:
-		LOGINF("CHIPSET_STOP");
 		chipset_notready(&inmsg.hdr);
 		break;
 	default:
-		LOGERR("unrecognized controlvm cmd=%d", (int) inmsg.hdr.id);
 		if (inmsg.hdr.flags.response_expected)
 			controlvm_respond(&inmsg.hdr,
-					  -CONTROLVM_RESP_ERROR_MESSAGE_ID_UNKNOWN);
+				-CONTROLVM_RESP_ERROR_MESSAGE_ID_UNKNOWN);
 		break;
 	}
 
-	if (parser_ctx != NULL) {
+	if (parser_ctx) {
 		parser_done(parser_ctx);
 		parser_ctx = NULL;
 	}
@@ -1927,12 +1752,9 @@ static HOSTADDRESS controlvm_get_channel_address(void)
 	u64 addr = 0;
 	u32 size = 0;
 
-	if (!VMCALL_SUCCESSFUL(issue_vmcall_io_controlvm_addr(&addr, &size))) {
-		ERRDRV("%s - vmcall to determine controlvm channel addr failed",
-		       __func__);
+	if (!VMCALL_SUCCESSFUL(issue_vmcall_io_controlvm_addr(&addr, &size)))
 		return 0;
-	}
-	INFODRV("controlvm addr=%Lx", addr);
+
 	return addr;
 }
 
@@ -1940,69 +1762,63 @@ static void
 controlvm_periodic_work(struct work_struct *work)
 {
 	struct controlvm_message inmsg;
-	BOOL gotACommand = FALSE;
+	BOOL got_command = FALSE;
 	BOOL handle_command_failed = FALSE;
-	static u64 Poll_Count;
+	static u64 poll_count;
 
 	/* make sure visorbus server is registered for controlvm callbacks */
 	if (visorchipset_serverregwait && !serverregistered)
-		goto Away;
+		goto cleanup;
 	/* make sure visorclientbus server is regsitered for controlvm
 	 * callbacks
 	 */
 	if (visorchipset_clientregwait && !clientregistered)
-		goto Away;
+		goto cleanup;
 
-	Poll_Count++;
-	if (Poll_Count >= 250)
+	poll_count++;
+	if (poll_count >= 250)
 		;	/* keep going */
 	else
-		goto Away;
+		goto cleanup;
 
 	/* Check events to determine if response to CHIPSET_READY
 	 * should be sent
 	 */
-	if (visorchipset_holdchipsetready
-	    && (g_ChipSetMsgHdr.id != CONTROLVM_INVALID)) {
+	if (visorchipset_holdchipsetready &&
+	    (g_chipset_msg_hdr.id != CONTROLVM_INVALID)) {
 		if (check_chipset_events() == 1) {
-			LOGINF("Sending CHIPSET_READY response");
-			controlvm_respond(&g_ChipSetMsgHdr, 0);
+			controlvm_respond(&g_chipset_msg_hdr, 0);
 			clear_chipset_events();
-			memset(&g_ChipSetMsgHdr, 0,
+			memset(&g_chipset_msg_hdr, 0,
 			       sizeof(struct controlvm_message_header));
 		}
 	}
 
-	while (visorchannel_signalremove(ControlVm_channel,
+	while (visorchannel_signalremove(controlvm_channel,
 					 CONTROLVM_QUEUE_RESPONSE,
-					 &inmsg)) {
-		if (inmsg.hdr.payload_max_bytes != 0) {
-			LOGERR("Payload of size %lu returned @%lu with unexpected message id %d.",
-			     (ulong) inmsg.hdr.payload_max_bytes,
-			     (ulong) inmsg.hdr.payload_vm_offset,
-			     inmsg.hdr.id);
-		}
-	}
-	if (!gotACommand) {
-		if (ControlVm_Pending_Msg_Valid) {
+					 &inmsg))
+		;
+	if (!got_command) {
+		if (controlvm_pending_msg_valid) {
 			/* we throttled processing of a prior
 			* msg, so try to process it again
 			* rather than reading a new one
 			*/
-			inmsg = ControlVm_Pending_Msg;
-			ControlVm_Pending_Msg_Valid = FALSE;
-			gotACommand = TRUE;
-		} else
-			gotACommand = read_controlvm_event(&inmsg);
+			inmsg = controlvm_pending_msg;
+			controlvm_pending_msg_valid = FALSE;
+			got_command = true;
+		} else {
+			got_command = read_controlvm_event(&inmsg);
+		}
 	}
 
 	handle_command_failed = FALSE;
-	while (gotACommand && (!handle_command_failed)) {
-		Most_recent_message_jiffies = jiffies;
+	while (got_command && (!handle_command_failed)) {
+		most_recent_message_jiffies = jiffies;
 		if (handle_command(inmsg,
 				   visorchannel_get_physaddr
-				   (ControlVm_channel)))
-			gotACommand = read_controlvm_event(&inmsg);
+				   (controlvm_channel)))
+			got_command = read_controlvm_event(&inmsg);
 		else {
 			/* this is a scenario where throttling
 			* is required, but probably NOT an
@@ -2011,56 +1827,51 @@ controlvm_periodic_work(struct work_struct *work)
 			* reprocess it on our next loop
 			*/
 			handle_command_failed = TRUE;
-			ControlVm_Pending_Msg = inmsg;
-			ControlVm_Pending_Msg_Valid = TRUE;
+			controlvm_pending_msg = inmsg;
+			controlvm_pending_msg_valid = TRUE;
 		}
 	}
 
 	/* parahotplug_worker */
 	parahotplug_process_list();
 
-Away:
+cleanup:
 
 	if (time_after(jiffies,
-		       Most_recent_message_jiffies + (HZ * MIN_IDLE_SECONDS))) {
+		       most_recent_message_jiffies + (HZ * MIN_IDLE_SECONDS))) {
 		/* it's been longer than MIN_IDLE_SECONDS since we
 		* processed our last controlvm message; slow down the
 		* polling
 		*/
-		if (Poll_jiffies != POLLJIFFIES_CONTROLVMCHANNEL_SLOW) {
-			LOGINF("switched to slow controlvm polling");
-			Poll_jiffies = POLLJIFFIES_CONTROLVMCHANNEL_SLOW;
-		}
+		if (poll_jiffies != POLLJIFFIES_CONTROLVMCHANNEL_SLOW)
+			poll_jiffies = POLLJIFFIES_CONTROLVMCHANNEL_SLOW;
 	} else {
-		if (Poll_jiffies != POLLJIFFIES_CONTROLVMCHANNEL_FAST) {
-			Poll_jiffies = POLLJIFFIES_CONTROLVMCHANNEL_FAST;
-			LOGINF("switched to fast controlvm polling");
-		}
+		if (poll_jiffies != POLLJIFFIES_CONTROLVMCHANNEL_FAST)
+			poll_jiffies = POLLJIFFIES_CONTROLVMCHANNEL_FAST;
 	}
 
-	queue_delayed_work(Periodic_controlvm_workqueue,
-			   &Periodic_controlvm_work, Poll_jiffies);
+	queue_delayed_work(periodic_controlvm_workqueue,
+			   &periodic_controlvm_work, poll_jiffies);
 }
 
 static void
 setup_crash_devices_work_queue(struct work_struct *work)
 {
-
-	struct controlvm_message localCrashCreateBusMsg;
-	struct controlvm_message localCrashCreateDevMsg;
+	struct controlvm_message local_crash_bus_msg;
+	struct controlvm_message local_crash_dev_msg;
 	struct controlvm_message msg;
-	u32 localSavedCrashMsgOffset;
-	u16 localSavedCrashMsgCount;
+	u32 local_crash_msg_offset;
+	u16 local_crash_msg_count;
 
 	/* make sure visorbus server is registered for controlvm callbacks */
 	if (visorchipset_serverregwait && !serverregistered)
-		goto Away;
+		goto cleanup;
 
 	/* make sure visorclientbus server is regsitered for controlvm
 	 * callbacks
 	 */
 	if (visorchipset_clientregwait && !clientregistered)
-		goto Away;
+		goto cleanup;
 
 	POSTCODE_LINUX_2(CRASH_DEV_ENTRY_PC, POSTCODE_SEVERITY_INFO);
 
@@ -2072,118 +1883,108 @@ setup_crash_devices_work_queue(struct work_struct *work)
 	chipset_init(&msg);
 
 	/* get saved message count */
-	if (visorchannel_read(ControlVm_channel,
+	if (visorchannel_read(controlvm_channel,
 			      offsetof(struct spar_controlvm_channel_protocol,
 				       saved_crash_message_count),
-			      &localSavedCrashMsgCount, sizeof(u16)) < 0) {
-		LOGERR("failed to get Saved Message Count");
+			      &local_crash_msg_count, sizeof(u16)) < 0) {
 		POSTCODE_LINUX_2(CRASH_DEV_CTRL_RD_FAILURE_PC,
 				 POSTCODE_SEVERITY_ERR);
 		return;
 	}
 
-	if (localSavedCrashMsgCount != CONTROLVM_CRASHMSG_MAX) {
-		LOGERR("Saved Message Count incorrect %d",
-		       localSavedCrashMsgCount);
+	if (local_crash_msg_count != CONTROLVM_CRASHMSG_MAX) {
 		POSTCODE_LINUX_3(CRASH_DEV_COUNT_FAILURE_PC,
-				 localSavedCrashMsgCount,
+				 local_crash_msg_count,
 				 POSTCODE_SEVERITY_ERR);
 		return;
 	}
 
 	/* get saved crash message offset */
-	if (visorchannel_read(ControlVm_channel,
+	if (visorchannel_read(controlvm_channel,
 			      offsetof(struct spar_controlvm_channel_protocol,
 				       saved_crash_message_offset),
-			      &localSavedCrashMsgOffset, sizeof(u32)) < 0) {
-		LOGERR("failed to get Saved Message Offset");
+			      &local_crash_msg_offset, sizeof(u32)) < 0) {
 		POSTCODE_LINUX_2(CRASH_DEV_CTRL_RD_FAILURE_PC,
 				 POSTCODE_SEVERITY_ERR);
 		return;
 	}
 
 	/* read create device message for storage bus offset */
-	if (visorchannel_read(ControlVm_channel,
-			      localSavedCrashMsgOffset,
-			      &localCrashCreateBusMsg,
+	if (visorchannel_read(controlvm_channel,
+			      local_crash_msg_offset,
+			      &local_crash_bus_msg,
 			      sizeof(struct controlvm_message)) < 0) {
-		LOGERR("CRASH_DEV_RD_BUS_FAIULRE: Failed to read CrashCreateBusMsg!");
 		POSTCODE_LINUX_2(CRASH_DEV_RD_BUS_FAIULRE_PC,
 				 POSTCODE_SEVERITY_ERR);
 		return;
 	}
 
 	/* read create device message for storage device */
-	if (visorchannel_read(ControlVm_channel,
-			      localSavedCrashMsgOffset +
+	if (visorchannel_read(controlvm_channel,
+			      local_crash_msg_offset +
 			      sizeof(struct controlvm_message),
-			      &localCrashCreateDevMsg,
+			      &local_crash_dev_msg,
 			      sizeof(struct controlvm_message)) < 0) {
-		LOGERR("CRASH_DEV_RD_DEV_FAIULRE: Failed to read CrashCreateDevMsg!");
 		POSTCODE_LINUX_2(CRASH_DEV_RD_DEV_FAIULRE_PC,
 				 POSTCODE_SEVERITY_ERR);
 		return;
 	}
 
 	/* reuse IOVM create bus message */
-	if (localCrashCreateBusMsg.cmd.create_bus.channel_addr != 0)
-		bus_create(&localCrashCreateBusMsg);
-	else {
-		LOGERR("CrashCreateBusMsg is null, no dump will be taken");
+	if (local_crash_bus_msg.cmd.create_bus.channel_addr != 0) {
+		bus_create(&local_crash_bus_msg);
+	} else {
 		POSTCODE_LINUX_2(CRASH_DEV_BUS_NULL_FAILURE_PC,
 				 POSTCODE_SEVERITY_ERR);
 		return;
 	}
 
 	/* reuse create device message for storage device */
-	if (localCrashCreateDevMsg.cmd.create_device.channel_addr != 0)
-		my_device_create(&localCrashCreateDevMsg);
-	else {
-		LOGERR("CrashCreateDevMsg is null, no dump will be taken");
+	if (local_crash_dev_msg.cmd.create_device.channel_addr != 0) {
+		my_device_create(&local_crash_dev_msg);
+	} else {
 		POSTCODE_LINUX_2(CRASH_DEV_DEV_NULL_FAILURE_PC,
 				 POSTCODE_SEVERITY_ERR);
 		return;
 	}
-	LOGINF("Bus and device ready for dumping");
 	POSTCODE_LINUX_2(CRASH_DEV_EXIT_PC, POSTCODE_SEVERITY_INFO);
 	return;
 
-Away:
+cleanup:
 
-	Poll_jiffies = POLLJIFFIES_CONTROLVMCHANNEL_SLOW;
+	poll_jiffies = POLLJIFFIES_CONTROLVMCHANNEL_SLOW;
 
-	queue_delayed_work(Periodic_controlvm_workqueue,
-			   &Periodic_controlvm_work, Poll_jiffies);
+	queue_delayed_work(periodic_controlvm_workqueue,
+			   &periodic_controlvm_work, poll_jiffies);
 }
 
 static void
-bus_create_response(ulong busNo, int response)
+bus_create_response(ulong bus_no, int response)
 {
-	bus_responder(CONTROLVM_BUS_CREATE, busNo, response);
+	bus_responder(CONTROLVM_BUS_CREATE, bus_no, response);
 }
 
 static void
-bus_destroy_response(ulong busNo, int response)
+bus_destroy_response(ulong bus_no, int response)
 {
-	bus_responder(CONTROLVM_BUS_DESTROY, busNo, response);
+	bus_responder(CONTROLVM_BUS_DESTROY, bus_no, response);
 }
 
 static void
-device_create_response(ulong busNo, ulong devNo, int response)
+device_create_response(ulong bus_no, ulong dev_no, int response)
 {
-	device_responder(CONTROLVM_DEVICE_CREATE, busNo, devNo, response);
+	device_responder(CONTROLVM_DEVICE_CREATE, bus_no, dev_no, response);
 }
 
 static void
-device_destroy_response(ulong busNo, ulong devNo, int response)
+device_destroy_response(ulong bus_no, ulong dev_no, int response)
 {
-	device_responder(CONTROLVM_DEVICE_DESTROY, busNo, devNo, response);
+	device_responder(CONTROLVM_DEVICE_DESTROY, bus_no, dev_no, response);
 }
 
 void
 visorchipset_device_pause_response(ulong bus_no, ulong dev_no, int response)
 {
-
 	device_changestate_responder(CONTROLVM_DEVICE_CHANGESTATE,
 				     bus_no, dev_no, response,
 				     segment_state_standby);
@@ -2191,22 +1992,20 @@ visorchipset_device_pause_response(ulong bus_no, ulong dev_no, int response)
 EXPORT_SYMBOL_GPL(visorchipset_device_pause_response);
 
 static void
-device_resume_response(ulong busNo, ulong devNo, int response)
+device_resume_response(ulong bus_no, ulong dev_no, int response)
 {
 	device_changestate_responder(CONTROLVM_DEVICE_CHANGESTATE,
-				     busNo, devNo, response,
+				     bus_no, dev_no, response,
 				     segment_state_running);
 }
 
 BOOL
 visorchipset_get_bus_info(ulong bus_no, struct visorchipset_bus_info *bus_info)
 {
-	void *p = findbus(&BusInfoList, bus_no);
+	void *p = findbus(&bus_info_list, bus_no);
 
-	if (!p) {
-		LOGERR("(%lu) failed", bus_no);
+	if (!p)
 		return FALSE;
-	}
 	memcpy(bus_info, p, sizeof(struct visorchipset_bus_info));
 	return TRUE;
 }
@@ -2215,12 +2014,10 @@ EXPORT_SYMBOL_GPL(visorchipset_get_bus_info);
 BOOL
 visorchipset_set_bus_context(ulong bus_no, void *context)
 {
-	struct visorchipset_bus_info *p = findbus(&BusInfoList, bus_no);
+	struct visorchipset_bus_info *p = findbus(&bus_info_list, bus_no);
 
-	if (!p) {
-		LOGERR("(%lu) failed", bus_no);
+	if (!p)
 		return FALSE;
-	}
 	p->bus_driver_context = context;
 	return TRUE;
 }
@@ -2230,12 +2027,10 @@ BOOL
 visorchipset_get_device_info(ulong bus_no, ulong dev_no,
 			     struct visorchipset_device_info *dev_info)
 {
-	void *p = finddevice(&DevInfoList, bus_no, dev_no);
+	void *p = finddevice(&dev_info_list, bus_no, dev_no);
 
-	if (!p) {
-		LOGERR("(%lu,%lu) failed", bus_no, dev_no);
+	if (!p)
 		return FALSE;
-	}
 	memcpy(dev_info, p, sizeof(struct visorchipset_device_info));
 	return TRUE;
 }
@@ -2245,12 +2040,10 @@ BOOL
 visorchipset_set_device_context(ulong bus_no, ulong dev_no, void *context)
 {
 	struct visorchipset_device_info *p =
-			finddevice(&DevInfoList, bus_no, dev_no);
+			finddevice(&dev_info_list, bus_no, dev_no);
 
-	if (!p) {
-		LOGERR("(%lu,%lu) failed", bus_no, dev_no);
+	if (!p)
 		return FALSE;
-	}
 	p->bus_driver_context = context;
 	return TRUE;
 }
@@ -2278,11 +2071,10 @@ visorchipset_cache_alloc(struct kmem_cache *pool, BOOL ok_to_block,
 	 */
 	gfp |= __GFP_NORETRY;
 	p = kmem_cache_alloc(pool, gfp);
-	if (!p) {
-		LOGERR("kmem_cache_alloc failed early @%s:%d\n", fn, ln);
+	if (!p)
 		return NULL;
-	}
-	atomic_inc(&Visorchipset_cache_buffers_in_use);
+
+	atomic_inc(&visorchipset_cache_buffers_in_use);
 	return p;
 }
 
@@ -2291,16 +2083,16 @@ visorchipset_cache_alloc(struct kmem_cache *pool, BOOL ok_to_block,
 void
 visorchipset_cache_free(struct kmem_cache *pool, void *p, char *fn, int ln)
 {
-	if (!p) {
-		LOGERR("NULL pointer @%s:%d\n", fn, ln);
+	if (!p)
 		return;
-	}
-	atomic_dec(&Visorchipset_cache_buffers_in_use);
+
+	atomic_dec(&visorchipset_cache_buffers_in_use);
 	kmem_cache_free(pool, p);
 }
 
 static ssize_t chipsetready_store(struct device *dev,
-	struct device_attribute *attr, const char *buf, size_t count)
+				  struct device_attribute *attr,
+				  const char *buf, size_t count)
 {
 	char msgtype[64];
 
@@ -2322,7 +2114,8 @@ static ssize_t chipsetready_store(struct device *dev,
  * and then passed back when the device has been removed.
  */
 static ssize_t devicedisabled_store(struct device *dev,
-	struct device_attribute *attr, const char *buf, size_t count)
+				    struct device_attribute *attr,
+				    const char *buf, size_t count)
 {
 	uint id;
 
@@ -2338,7 +2131,8 @@ static ssize_t devicedisabled_store(struct device *dev,
  * and then passed back when the device has been brought back up.
  */
 static ssize_t deviceenabled_store(struct device *dev,
-	struct device_attribute *attr, const char *buf, size_t count)
+				   struct device_attribute *attr,
+				   const char *buf, size_t count)
 {
 	uint id;
 
@@ -2353,133 +2147,102 @@ static int __init
 visorchipset_init(void)
 {
 	int rc = 0, x = 0;
-	char s[64];
 	HOSTADDRESS addr;
 
 	if (!unisys_spar_platform)
 		return -ENODEV;
 
-	LOGINF("chipset driver version %s loaded", VERSION);
-	/* process module options */
-	POSTCODE_LINUX_2(DRIVER_ENTRY_PC, POSTCODE_SEVERITY_INFO);
-
-	LOGINF("option - testvnic=%d", visorchipset_testvnic);
-	LOGINF("option - testvnicclient=%d", visorchipset_testvnicclient);
-	LOGINF("option - testmsg=%d", visorchipset_testmsg);
-	LOGINF("option - testteardown=%d", visorchipset_testteardown);
-	LOGINF("option - major=%d", visorchipset_major);
-	LOGINF("option - serverregwait=%d", visorchipset_serverregwait);
-	LOGINF("option - clientregwait=%d", visorchipset_clientregwait);
-	LOGINF("option - holdchipsetready=%d", visorchipset_holdchipsetready);
-
-	memset(&BusDev_Server_Notifiers, 0, sizeof(BusDev_Server_Notifiers));
-	memset(&BusDev_Client_Notifiers, 0, sizeof(BusDev_Client_Notifiers));
-	memset(&ControlVm_payload_info, 0, sizeof(ControlVm_payload_info));
-	memset(&LiveDump_info, 0, sizeof(LiveDump_info));
-	atomic_set(&LiveDump_info.buffers_in_use, 0);
+	memset(&busdev_server_notifiers, 0, sizeof(busdev_server_notifiers));
+	memset(&busdev_client_notifiers, 0, sizeof(busdev_client_notifiers));
+	memset(&controlvm_payload_info, 0, sizeof(controlvm_payload_info));
+	memset(&livedump_info, 0, sizeof(livedump_info));
+	atomic_set(&livedump_info.buffers_in_use, 0);
 
 	if (visorchipset_testvnic) {
-		ERRDRV("testvnic option no longer supported: (status = %d)\n",
-		       x);
 		POSTCODE_LINUX_3(CHIPSET_INIT_FAILURE_PC, x, DIAG_SEVERITY_ERR);
 		rc = x;
-		goto Away;
+		goto cleanup;
 	}
 
 	addr = controlvm_get_channel_address();
 	if (addr != 0) {
-		ControlVm_channel =
+		controlvm_channel =
 		    visorchannel_create_with_lock
 		    (addr,
 		     sizeof(struct spar_controlvm_channel_protocol),
 		     spar_controlvm_channel_protocol_uuid);
 		if (SPAR_CONTROLVM_CHANNEL_OK_CLIENT(
-				visorchannel_get_header(ControlVm_channel))) {
-			LOGINF("Channel %s (ControlVm) discovered",
-			       visorchannel_id(ControlVm_channel, s));
+				visorchannel_get_header(controlvm_channel))) {
 			initialize_controlvm_payload();
 		} else {
-			LOGERR("controlvm channel is invalid");
-			visorchannel_destroy(ControlVm_channel);
-			ControlVm_channel = NULL;
+			visorchannel_destroy(controlvm_channel);
+			controlvm_channel = NULL;
 			return -ENODEV;
 		}
 	} else {
-		LOGERR("no controlvm channel discovered");
 		return -ENODEV;
 	}
 
-	MajorDev = MKDEV(visorchipset_major, 0);
-	rc = visorchipset_file_init(MajorDev, &ControlVm_channel);
+	major_dev = MKDEV(visorchipset_major, 0);
+	rc = visorchipset_file_init(major_dev, &controlvm_channel);
 	if (rc < 0) {
-		ERRDRV("visorchipset_file_init(MajorDev, &ControlVm_channel): error (status=%d)\n", rc);
 		POSTCODE_LINUX_2(CHIPSET_INIT_FAILURE_PC, DIAG_SEVERITY_ERR);
-		goto Away;
+		goto cleanup;
 	}
 
-	memset(&g_DiagMsgHdr, 0, sizeof(struct controlvm_message_header));
+	memset(&g_diag_msg_hdr, 0, sizeof(struct controlvm_message_header));
 
-	memset(&g_ChipSetMsgHdr, 0, sizeof(struct controlvm_message_header));
+	memset(&g_chipset_msg_hdr, 0, sizeof(struct controlvm_message_header));
 
-	memset(&g_DelDumpMsgHdr, 0, sizeof(struct controlvm_message_header));
+	memset(&g_del_dump_msg_hdr, 0, sizeof(struct controlvm_message_header));
 
-	Putfile_buffer_list_pool =
-	    kmem_cache_create(Putfile_buffer_list_pool_name,
+	putfile_buffer_list_pool =
+	    kmem_cache_create(putfile_buffer_list_pool_name,
 			      sizeof(struct putfile_buffer_entry),
 			      0, SLAB_HWCACHE_ALIGN, NULL);
-	if (!Putfile_buffer_list_pool) {
-		ERRDRV("failed to alloc Putfile_buffer_list_pool: (status=-1)\n");
+	if (!putfile_buffer_list_pool) {
 		POSTCODE_LINUX_2(CHIPSET_INIT_FAILURE_PC, DIAG_SEVERITY_ERR);
 		rc = -1;
-		goto Away;
+		goto cleanup;
 	}
-	if (visorchipset_disable_controlvm) {
-		LOGINF("visorchipset_init:controlvm disabled");
-	} else {
+	if (!visorchipset_disable_controlvm) {
 		/* if booting in a crash kernel */
 		if (visorchipset_crash_kernel)
-			INIT_DELAYED_WORK(&Periodic_controlvm_work,
+			INIT_DELAYED_WORK(&periodic_controlvm_work,
 					  setup_crash_devices_work_queue);
 		else
-			INIT_DELAYED_WORK(&Periodic_controlvm_work,
+			INIT_DELAYED_WORK(&periodic_controlvm_work,
 					  controlvm_periodic_work);
-		Periodic_controlvm_workqueue =
+		periodic_controlvm_workqueue =
 		    create_singlethread_workqueue("visorchipset_controlvm");
 
-		if (Periodic_controlvm_workqueue == NULL) {
-			ERRDRV("cannot create controlvm workqueue: (status=%d)\n",
-			       -ENOMEM);
+		if (!periodic_controlvm_workqueue) {
 			POSTCODE_LINUX_2(CREATE_WORKQUEUE_FAILED_PC,
 					 DIAG_SEVERITY_ERR);
 			rc = -ENOMEM;
-			goto Away;
+			goto cleanup;
 		}
-		Most_recent_message_jiffies = jiffies;
-		Poll_jiffies = POLLJIFFIES_CONTROLVMCHANNEL_FAST;
-		rc = queue_delayed_work(Periodic_controlvm_workqueue,
-					&Periodic_controlvm_work, Poll_jiffies);
+		most_recent_message_jiffies = jiffies;
+		poll_jiffies = POLLJIFFIES_CONTROLVMCHANNEL_FAST;
+		rc = queue_delayed_work(periodic_controlvm_workqueue,
+					&periodic_controlvm_work, poll_jiffies);
 		if (rc < 0) {
-			ERRDRV("queue_delayed_work(Periodic_controlvm_workqueue, &Periodic_controlvm_work, Poll_jiffies): error (status=%d)\n", rc);
 			POSTCODE_LINUX_2(QUEUE_DELAYED_WORK_PC,
 					 DIAG_SEVERITY_ERR);
-			goto Away;
+			goto cleanup;
 		}
-
 	}
 
-	Visorchipset_platform_device.dev.devt = MajorDev;
-	if (platform_device_register(&Visorchipset_platform_device) < 0) {
-		ERRDRV("platform_device_register(visorchipset) failed: (status=-1)\n");
+	visorchipset_platform_device.dev.devt = major_dev;
+	if (platform_device_register(&visorchipset_platform_device) < 0) {
 		POSTCODE_LINUX_2(DEVICE_REGISTER_FAILURE_PC, DIAG_SEVERITY_ERR);
 		rc = -1;
-		goto Away;
+		goto cleanup;
 	}
-	LOGINF("visorchipset device created");
 	POSTCODE_LINUX_2(CHIPSET_INIT_SUCCESS_PC, POSTCODE_SEVERITY_INFO);
 	rc = 0;
-Away:
+cleanup:
 	if (rc) {
-		LOGERR("visorchipset_init failed");
 		POSTCODE_LINUX_3(CHIPSET_INIT_FAILURE_PC, rc,
 				 POSTCODE_SEVERITY_ERR);
 	}
@@ -2489,40 +2252,34 @@ Away:
 static void
 visorchipset_exit(void)
 {
-	char s[99];
-
 	POSTCODE_LINUX_2(DRIVER_EXIT_PC, POSTCODE_SEVERITY_INFO);
 
 	if (visorchipset_disable_controlvm) {
 		;
 	} else {
-		cancel_delayed_work(&Periodic_controlvm_work);
-		flush_workqueue(Periodic_controlvm_workqueue);
-		destroy_workqueue(Periodic_controlvm_workqueue);
-		Periodic_controlvm_workqueue = NULL;
-		destroy_controlvm_payload_info(&ControlVm_payload_info);
+		cancel_delayed_work(&periodic_controlvm_work);
+		flush_workqueue(periodic_controlvm_workqueue);
+		destroy_workqueue(periodic_controlvm_workqueue);
+		periodic_controlvm_workqueue = NULL;
+		destroy_controlvm_payload_info(&controlvm_payload_info);
 	}
-	Test_Vnic_channel = NULL;
-	if (Putfile_buffer_list_pool) {
-		kmem_cache_destroy(Putfile_buffer_list_pool);
-		Putfile_buffer_list_pool = NULL;
+	if (putfile_buffer_list_pool) {
+		kmem_cache_destroy(putfile_buffer_list_pool);
+		putfile_buffer_list_pool = NULL;
 	}
 
 	cleanup_controlvm_structures();
 
-	memset(&g_DiagMsgHdr, 0, sizeof(struct controlvm_message_header));
+	memset(&g_diag_msg_hdr, 0, sizeof(struct controlvm_message_header));
 
-	memset(&g_ChipSetMsgHdr, 0, sizeof(struct controlvm_message_header));
+	memset(&g_chipset_msg_hdr, 0, sizeof(struct controlvm_message_header));
 
-	memset(&g_DelDumpMsgHdr, 0, sizeof(struct controlvm_message_header));
+	memset(&g_del_dump_msg_hdr, 0, sizeof(struct controlvm_message_header));
 
-	LOGINF("Channel %s (ControlVm) disconnected",
-	       visorchannel_id(ControlVm_channel, s));
-	visorchannel_destroy(ControlVm_channel);
+	visorchannel_destroy(controlvm_channel);
 
-	visorchipset_file_cleanup();
+	visorchipset_file_cleanup(visorchipset_platform_device.dev.devt);
 	POSTCODE_LINUX_2(DRIVER_EXIT_PC, POSTCODE_SEVERITY_INFO);
-	LOGINF("chipset driver unloaded");
 }
 
 module_param_named(testvnic, visorchipset_testvnic, int, S_IRUGO);
diff --git a/drivers/staging/unisys/visorutil/Kconfig b/drivers/staging/unisys/visorutil/Kconfig
index 74b474e..be9c2cf 100644
--- a/drivers/staging/unisys/visorutil/Kconfig
+++ b/drivers/staging/unisys/visorutil/Kconfig
@@ -4,7 +4,6 @@
 
 config UNISYS_VISORUTIL
 	tristate "Unisys visorutil driver"
-	depends on UNISYSSPAR && HAS_IOMEM
 	---help---
 	If you say Y here, you will enable the Unisys visorutil driver.
 
diff --git a/drivers/staging/unisys/visorutil/Makefile b/drivers/staging/unisys/visorutil/Makefile
index d871bbb..d9ab5a3 100644
--- a/drivers/staging/unisys/visorutil/Makefile
+++ b/drivers/staging/unisys/visorutil/Makefile
@@ -4,7 +4,6 @@
 
 obj-$(CONFIG_UNISYS_VISORUTIL)	+= visorutil.o
 
-visorutil-y := charqueue.o  easyproc.o  periodic_work.o  procobjecttree.o  \
-		memregion_direct.o visorkmodutils.o
+visorutil-y := charqueue.o  periodic_work.o  memregion_direct.o visorkmodutils.o
 
 ccflags-y += -Idrivers/staging/unisys/include
diff --git a/drivers/staging/unisys/visorutil/charqueue.c b/drivers/staging/unisys/visorutil/charqueue.c
index ac7acb7..c91752a 100644
--- a/drivers/staging/unisys/visorutil/charqueue.c
+++ b/drivers/staging/unisys/visorutil/charqueue.c
@@ -36,13 +36,11 @@ struct charqueue {
 struct charqueue *visor_charqueue_create(ulong nslots)
 {
 	int alloc_size = sizeof(struct charqueue) + nslots + 1;
-	struct charqueue *cq = kmalloc(alloc_size, GFP_KERNEL|__GFP_NORETRY);
+	struct charqueue *cq;
 
-	if (cq == NULL) {
-		ERRDRV("visor_charqueue_create allocation failed (alloc_size=%d)",
-		       alloc_size);
+	cq = kmalloc(alloc_size, GFP_KERNEL|__GFP_NORETRY);
+	if (cq == NULL)
 		return NULL;
-	}
 	cq->alloc_size = alloc_size;
 	cq->nslots = nslots;
 	cq->head = 0;
diff --git a/drivers/staging/unisys/visorutil/charqueue.h b/drivers/staging/unisys/visorutil/charqueue.h
index 56c1f79..f46a776 100644
--- a/drivers/staging/unisys/visorutil/charqueue.h
+++ b/drivers/staging/unisys/visorutil/charqueue.h
@@ -18,7 +18,6 @@
 #ifndef __CHARQUEUE_H__
 #define __CHARQUEUE_H__
 
-#include "uniklog.h"
 #include "timskmod.h"
 
 /* struct charqueue is an opaque structure to users.
diff --git a/drivers/staging/unisys/visorutil/easyproc.c b/drivers/staging/unisys/visorutil/easyproc.c
deleted file mode 100644
index 40f1ae9..0000000
--- a/drivers/staging/unisys/visorutil/easyproc.c
+++ /dev/null
@@ -1,377 +0,0 @@
-/* Copyright (C) 2010 - 2013 UNISYS CORPORATION
- * All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or (at
- * your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
- * NON INFRINGEMENT.  See the GNU General Public License for more
- * details.
- */
-
-/** @file *********************************************************************
- *
- *  Handle procfs-specific tasks.
- *  Note that this file does not know about any module-specific things, nor
- *  does it know anything about what information to reveal as part of the proc
- *  entries.  The 2 functions that take care of displaying device and
- *  driver specific information are passed as parameters to
- *  visor_easyproc_InitDriver().
- *
- *      void show_device_info(struct seq_file *seq, void *p);
- *      void show_driver_info(struct seq_file *seq);
- *
- *  The second parameter to show_device_info is actually a pointer to the
- *  device-specific info to show.  It is the context that was originally
- *  passed to visor_easyproc_InitDevice().
- *
- ******************************************************************************
- */
-
-#include <linux/proc_fs.h>
-
-#include "uniklog.h"
-#include "timskmod.h"
-#include "easyproc.h"
-
-#define MYDRVNAME "easyproc"
-
-
-
-/*
- *   /proc/<ProcId>                              ProcDir
- *   /proc/<ProcId>/driver                       ProcDriverDir
- *   /proc/<ProcId>/driver/diag                  ProcDriverDiagFile
- *   /proc/<ProcId>/device                       ProcDeviceDir
- *   /proc/<ProcId>/device/0                     procDevicexDir
- *   /proc/<ProcId>/device/0/diag                procDevicexDiagFile
- */
-
-
-static ssize_t proc_write_device(struct file *file, const char __user *buffer,
-				 size_t count, loff_t *ppos);
-static ssize_t proc_write_driver(struct file *file, const char __user *buffer,
-				 size_t count, loff_t *ppos);
-
-static struct proc_dir_entry *
-	createProcDir(char *name, struct proc_dir_entry *parent)
-{
-	struct proc_dir_entry *p = proc_mkdir_mode(name, S_IFDIR, parent);
-
-	if (p == NULL)
-		ERRDRV("failed to create /proc directory %s", name);
-	return p;
-}
-
-static int seq_show_driver(struct seq_file *seq, void *offset);
-static int proc_open_driver(struct inode *inode, struct file *file)
-{
-	return single_open(file, seq_show_driver, PDE_DATA(inode));
-}
-static const struct file_operations proc_fops_driver = {
-	.open = proc_open_driver,
-	.read = seq_read,
-	.write = proc_write_driver,
-	.llseek = seq_lseek,
-	.release = single_release,
-};
-
-static int seq_show_device(struct seq_file *seq, void *offset);
-static int seq_show_device_property(struct seq_file *seq, void *offset);
-static int proc_open_device(struct inode *inode, struct file *file)
-{
-	return single_open(file, seq_show_device, PDE_DATA(inode));
-}
-static const struct file_operations proc_fops_device = {
-	.open = proc_open_device,
-	.read = seq_read,
-	.write = proc_write_device,
-	.llseek = seq_lseek,
-	.release = single_release,
-};
-static int proc_open_device_property(struct inode *inode, struct file *file)
-{
-	return single_open(file, seq_show_device_property, PDE_DATA(inode));
-}
-static const struct file_operations proc_fops_device_property = {
-	.open = proc_open_device_property,
-	.read = seq_read,
-	.llseek = seq_lseek,
-	.release = single_release,
-};
-
-
-
-void visor_easyproc_InitDriver(struct easyproc_driver_info *pdriver,
-			       char *procId,
-			       void (*show_driver_info)(struct seq_file *),
-			       void (*show_device_info)(struct seq_file *,
-							void *))
-{
-	memset(pdriver, 0, sizeof(struct easyproc_driver_info));
-	pdriver->ProcId = procId;
-	if (pdriver->ProcId == NULL)
-		ERRDRV("ProcId cannot be NULL (trouble ahead)!");
-	pdriver->Show_driver_info = show_driver_info;
-	pdriver->Show_device_info = show_device_info;
-	if (pdriver->ProcDir == NULL)
-		pdriver->ProcDir = createProcDir(pdriver->ProcId, NULL);
-	if ((pdriver->ProcDir != NULL) && (pdriver->ProcDriverDir == NULL))
-		pdriver->ProcDriverDir = createProcDir("driver",
-						       pdriver->ProcDir);
-	if ((pdriver->ProcDir != NULL) && (pdriver->ProcDeviceDir == NULL))
-		pdriver->ProcDeviceDir = createProcDir("device",
-						       pdriver->ProcDir);
-	if ((pdriver->ProcDriverDir != NULL) &&
-	    (pdriver->ProcDriverDiagFile == NULL)) {
-		pdriver->ProcDriverDiagFile =
-			proc_create_data("diag", 0,
-					 pdriver->ProcDriverDir,
-					 &proc_fops_driver, pdriver);
-		if (pdriver->ProcDriverDiagFile == NULL)
-			ERRDRV("failed to register /proc/%s/driver/diag entry",
-			       pdriver->ProcId);
-	}
-}
-EXPORT_SYMBOL_GPL(visor_easyproc_InitDriver);
-
-
-
-void visor_easyproc_InitDriverEx(struct easyproc_driver_info *pdriver,
-				 char *procId,
-				 void (*show_driver_info)(struct seq_file *),
-				 void (*show_device_info)(struct seq_file *,
-							  void *),
-				 void (*write_driver_info)(char *buf,
-							   size_t count,
-							   loff_t *ppos),
-				 void (*write_device_info)(char *buf,
-							   size_t count,
-							   loff_t *ppos,
-							   void *p))
-{
-	visor_easyproc_InitDriver(pdriver, procId,
-				  show_driver_info, show_device_info);
-	pdriver->Write_driver_info = write_driver_info;
-	pdriver->Write_device_info = write_device_info;
-}
-EXPORT_SYMBOL_GPL(visor_easyproc_InitDriverEx);
-
-
-
-void visor_easyproc_DeInitDriver(struct easyproc_driver_info *pdriver)
-{
-	if (pdriver->ProcDriverDiagFile != NULL) {
-		remove_proc_entry("diag", pdriver->ProcDriverDir);
-		pdriver->ProcDriverDiagFile = NULL;
-	}
-	if (pdriver->ProcDriverDir != NULL) {
-		remove_proc_entry("driver", pdriver->ProcDir);
-		pdriver->ProcDriverDir = NULL;
-	}
-	if (pdriver->ProcDeviceDir != NULL) {
-		remove_proc_entry("device", pdriver->ProcDir);
-		pdriver->ProcDeviceDir = NULL;
-	}
-	if (pdriver->ProcDir != NULL) {
-		remove_proc_entry(pdriver->ProcId, NULL);
-		pdriver->ProcDir = NULL;
-	}
-	pdriver->ProcId = NULL;
-	pdriver->Show_driver_info = NULL;
-	pdriver->Show_device_info = NULL;
-	pdriver->Write_driver_info = NULL;
-	pdriver->Write_device_info = NULL;
-}
-EXPORT_SYMBOL_GPL(visor_easyproc_DeInitDriver);
-
-
-
-void visor_easyproc_InitDevice(struct easyproc_driver_info *pdriver,
-			       struct easyproc_device_info *p, int devno,
-			       void *devdata)
-{
-	if ((pdriver->ProcDeviceDir != NULL) && (p->procDevicexDir == NULL)) {
-		char s[29];
-
-		sprintf(s, "%d", devno);
-		p->procDevicexDir = createProcDir(s, pdriver->ProcDeviceDir);
-		p->devno = devno;
-	}
-	p->devdata = devdata;
-	p->pdriver = pdriver;
-	p->devno = devno;
-	if ((p->procDevicexDir != NULL) && (p->procDevicexDiagFile == NULL)) {
-		p->procDevicexDiagFile =
-			proc_create_data("diag", 0, p->procDevicexDir,
-					 &proc_fops_device, p);
-		if (p->procDevicexDiagFile == NULL)
-			ERRDEVX(devno, "failed to register /proc/%s/device/%d/diag entry",
-				pdriver->ProcId, devno
-			       );
-	}
-	memset(&(p->device_property_info[0]), 0,
-	       sizeof(p->device_property_info));
-}
-EXPORT_SYMBOL_GPL(visor_easyproc_InitDevice);
-
-
-
-void visor_easyproc_CreateDeviceProperty(struct easyproc_device_info *p,
-					 void (*show_property_info)
-					 (struct seq_file *, void *),
-					 char *property_name)
-{
-	size_t i;
-	struct easyproc_device_property_info *px = NULL;
-
-	if (p->procDevicexDir == NULL) {
-		ERRDRV("state error");
-		return;
-	}
-	for (i = 0; i < ARRAY_SIZE(p->device_property_info); i++) {
-		if (p->device_property_info[i].procEntry == NULL) {
-			px = &(p->device_property_info[i]);
-			break;
-		}
-	}
-	if (!px) {
-		ERRDEVX(p->devno, "too many device properties");
-		return;
-	}
-	px->devdata = p->devdata;
-	px->pdriver = p->pdriver;
-	px->procEntry = proc_create_data(property_name, 0, p->procDevicexDir,
-					 &proc_fops_device_property, px);
-	if (strlen(property_name)+1 > sizeof(px->property_name)) {
-		ERRDEVX(p->devno, "device property name %s too long",
-			property_name);
-		return;
-	}
-	strcpy(px->property_name, property_name);
-	if (px->procEntry == NULL) {
-		ERRDEVX(p->devno,
-			"failed to register /proc/%s/device/%d/%s entry",
-			p->pdriver->ProcId, p->devno, property_name);
-		return;
-	}
-	px->show_device_property_info = show_property_info;
-}
-EXPORT_SYMBOL_GPL(visor_easyproc_CreateDeviceProperty);
-
-
-
-void visor_easyproc_DeInitDevice(struct easyproc_driver_info *pdriver,
-				 struct easyproc_device_info *p, int devno)
-{
-	size_t i;
-
-	for (i = 0; i < ARRAY_SIZE(p->device_property_info); i++) {
-		if (p->device_property_info[i].procEntry != NULL) {
-			struct easyproc_device_property_info *px =
-				&(p->device_property_info[i]);
-			remove_proc_entry(px->property_name, p->procDevicexDir);
-			px->procEntry = NULL;
-		}
-	}
-	if (p->procDevicexDiagFile != NULL) {
-		remove_proc_entry("diag", p->procDevicexDir);
-		p->procDevicexDiagFile = NULL;
-	}
-	if (p->procDevicexDir != NULL) {
-		char s[29];
-
-		sprintf(s, "%d", devno);
-		remove_proc_entry(s, pdriver->ProcDeviceDir);
-		p->procDevicexDir = NULL;
-	}
-	p->devdata = NULL;
-	p->pdriver = NULL;
-}
-EXPORT_SYMBOL_GPL(visor_easyproc_DeInitDevice);
-
-
-
-static int seq_show_driver(struct seq_file *seq, void *offset)
-{
-	struct easyproc_driver_info *p =
-		(struct easyproc_driver_info *)(seq->private);
-	if (!p)
-		return 0;
-	(*(p->Show_driver_info))(seq);
-	return 0;
-}
-
-
-
-static int seq_show_device(struct seq_file *seq, void *offset)
-{
-	struct easyproc_device_info *p =
-		(struct easyproc_device_info *)(seq->private);
-	if ((!p) || (!(p->pdriver)))
-		return 0;
-	(*(p->pdriver->Show_device_info))(seq, p->devdata);
-	return 0;
-}
-
-
-
-static int seq_show_device_property(struct seq_file *seq, void *offset)
-{
-	struct easyproc_device_property_info *p =
-		(struct easyproc_device_property_info *)(seq->private);
-	if ((!p) || (!(p->show_device_property_info)))
-		return 0;
-	(*(p->show_device_property_info))(seq, p->devdata);
-	return 0;
-}
-
-
-
-static ssize_t proc_write_driver(struct file *file, const char __user *buffer,
-				 size_t count, loff_t *ppos)
-{
-	struct seq_file *seq = (struct seq_file *)file->private_data;
-	struct easyproc_driver_info *p = NULL;
-	char local_buf[256];
-
-	if (seq == NULL)
-		return 0;
-	p = (struct easyproc_driver_info *)(seq->private);
-	if ((!p) || (!(p->Write_driver_info)))
-		return 0;
-	if (count >= sizeof(local_buf))
-		return -ENOMEM;
-	if (copy_from_user(local_buf, buffer, count))
-		return -EFAULT;
-	local_buf[count] = '\0';  /* be friendly */
-	(*(p->Write_driver_info))(local_buf, count, ppos);
-	return count;
-}
-
-
-
-static ssize_t proc_write_device(struct file *file, const char __user *buffer,
-				 size_t count, loff_t *ppos)
-{
-	struct seq_file *seq = (struct seq_file *)file->private_data;
-	struct easyproc_device_info *p = NULL;
-	char local_buf[256];
-
-	if (seq == NULL)
-		return 0;
-	p = (struct easyproc_device_info *)(seq->private);
-	if ((!p) || (!(p->pdriver)) || (!(p->pdriver->Write_device_info)))
-		return 0;
-	if (count >= sizeof(local_buf))
-		return -ENOMEM;
-	if (copy_from_user(local_buf, buffer, count))
-		return -EFAULT;
-	local_buf[count] = '\0';  /* be friendly */
-	(*(p->pdriver->Write_device_info))(local_buf, count, ppos, p->devdata);
-	return count;
-}
diff --git a/drivers/staging/unisys/visorutil/easyproc.h b/drivers/staging/unisys/visorutil/easyproc.h
deleted file mode 100644
index 6ce7d5e..0000000
--- a/drivers/staging/unisys/visorutil/easyproc.h
+++ /dev/null
@@ -1,92 +0,0 @@
-/* easyproc.h
- *
- * Copyright (C) 2010 - 2013 UNISYS CORPORATION
- * All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or (at
- * your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
- * NON INFRINGEMENT.  See the GNU General Public License for more
- * details.
- */
-
-/** @file *********************************************************************
- *
- *  This describes the interfaces necessary for a simple /proc file
- *  implementation for a driver.
- *
- ******************************************************************************
- */
-
-#ifndef __EASYPROC_H__
-#define __EASYPROC_H__
-
-#include "timskmod.h"
-
-
-struct easyproc_driver_info {
-	struct proc_dir_entry *ProcDir;
-	struct proc_dir_entry *ProcDriverDir;
-	struct proc_dir_entry *ProcDriverDiagFile;
-	struct proc_dir_entry *ProcDeviceDir;
-	char *ProcId;
-	void (*Show_device_info)(struct seq_file *seq, void *p);
-	void (*Show_driver_info)(struct seq_file *seq);
-	void (*Write_device_info)(char *buf, size_t count,
-				  loff_t *ppos, void *p);
-	void (*Write_driver_info)(char *buf, size_t count, loff_t *ppos);
-};
-
-/* property is a file under /proc/<x>/device/<x>/<property_name> */
-struct easyproc_device_property_info {
-	char property_name[25];
-	struct proc_dir_entry *procEntry;
-	struct easyproc_driver_info *pdriver;
-	void *devdata;
-	void (*show_device_property_info)(struct seq_file *seq, void *p);
-};
-
-struct easyproc_device_info {
-	struct proc_dir_entry *procDevicexDir;
-	struct proc_dir_entry *procDevicexDiagFile;
-	struct easyproc_driver_info *pdriver;
-	void *devdata;
-	int devno;
-	/*  allow for a number of custom properties for each device: */
-	struct easyproc_device_property_info device_property_info[10];
-};
-
-void visor_easyproc_InitDevice(struct easyproc_driver_info *pdriver,
-			       struct easyproc_device_info *p, int devno,
-			       void *devdata);
-void visor_easyproc_DeInitDevice(struct easyproc_driver_info *pdriver,
-				 struct easyproc_device_info *p, int devno);
-void visor_easyproc_InitDriver(struct easyproc_driver_info *pdriver,
-			       char *procId,
-			       void (*show_driver_info)(struct seq_file *),
-			       void (*show_device_info)(struct seq_file *,
-							void *));
-void visor_easyproc_InitDriverEx(struct easyproc_driver_info *pdriver,
-				 char *procId,
-				 void (*show_driver_info)(struct seq_file *),
-				 void (*show_device_info)(struct seq_file *,
-							  void *),
-				 void (*Write_driver_info)(char *buf,
-							   size_t count,
-							   loff_t *ppos),
-				 void (*Write_device_info)(char *buf,
-							   size_t count,
-							   loff_t *ppos,
-							   void *p));
-void visor_easyproc_DeInitDriver(struct easyproc_driver_info *pdriver);
-void visor_easyproc_CreateDeviceProperty(struct easyproc_device_info *p,
-					 void (*show_property_info)
-					 (struct seq_file *, void *),
-					 char *property_name);
-
-#endif
diff --git a/drivers/staging/unisys/visorutil/memregion_direct.c b/drivers/staging/unisys/visorutil/memregion_direct.c
index 33522cc..eb7422f 100644
--- a/drivers/staging/unisys/visorutil/memregion_direct.c
+++ b/drivers/staging/unisys/visorutil/memregion_direct.c
@@ -20,7 +20,6 @@
  *  channel memory (in main memory of the host system) from code running in
  *  a virtual partition.
  */
-#include "uniklog.h"
 #include "timskmod.h"
 #include "memregion.h"
 
@@ -41,12 +40,12 @@ struct memregion *
 visor_memregion_create(HOSTADDRESS physaddr, ulong nbytes)
 {
 	struct memregion *rc = NULL;
-	struct memregion *memregion = kzalloc(sizeof(*memregion),
-					      GFP_KERNEL | __GFP_NORETRY);
-	if (memregion == NULL) {
-		ERRDRV("visor_memregion_create allocation failed");
+	struct memregion *memregion;
+
+	memregion = kzalloc(sizeof(*memregion), GFP_KERNEL | __GFP_NORETRY);
+	if (memregion == NULL)
 		return NULL;
-	}
+
 	memregion->physaddr = physaddr;
 	memregion->nbytes = nbytes;
 	memregion->overlapped = FALSE;
@@ -70,25 +69,19 @@ visor_memregion_create_overlapped(struct memregion *parent, ulong offset,
 {
 	struct memregion *memregion = NULL;
 
-	if (parent == NULL) {
-		ERRDRV("%s parent is NULL", __func__);
+	if (parent == NULL)
 		return NULL;
-	}
-	if (parent->mapped == NULL) {
-		ERRDRV("%s parent is not mapped!", __func__);
+
+	if (parent->mapped == NULL)
 		return NULL;
-	}
+
 	if ((offset >= parent->nbytes) ||
-	    ((offset + nbytes) >= parent->nbytes)) {
-		ERRDRV("%s range (%lu,%lu) out of parent range",
-		       __func__, offset, nbytes);
+	    ((offset + nbytes) >= parent->nbytes))
 		return NULL;
-	}
+
 	memregion = kzalloc(sizeof(*memregion), GFP_KERNEL|__GFP_NORETRY);
-	if (memregion == NULL) {
-		ERRDRV("%s allocation failed", __func__);
+	if (memregion == NULL)
 		return NULL;
-	}
 
 	memregion->physaddr = parent->physaddr + offset;
 	memregion->nbytes = nbytes;
@@ -106,17 +99,11 @@ mapit(struct memregion *memregion)
 	ulong nbytes = memregion->nbytes;
 
 	memregion->requested = FALSE;
-	if (!request_mem_region(physaddr, nbytes, MYDRVNAME))
-		ERRDRV("cannot reserve channel memory @0x%lx for 0x%lx-- no big deal",
-		       physaddr, nbytes);
-	else
+	if (request_mem_region(physaddr, nbytes, MYDRVNAME))
 		memregion->requested = TRUE;
 	memregion->mapped = ioremap_cache(physaddr, nbytes);
-	if (memregion->mapped == NULL) {
-		ERRDRV("cannot ioremap_cache channel memory @0x%lx for 0x%lx",
-		       physaddr, nbytes);
+	if (!memregion->mapped)
 		return FALSE;
-	}
 	return TRUE;
 }
 
@@ -180,10 +167,9 @@ memregion_readwrite(BOOL is_write,
 		    struct memregion *memregion, ulong offset,
 		    void *local, ulong nbytes)
 {
-	if (offset + nbytes > memregion->nbytes) {
-		ERRDRV("memregion_readwrite offset out of range!!");
+	if (offset + nbytes > memregion->nbytes)
 		return -EIO;
-	}
+
 	if (is_write)
 		memcpy_toio(memregion->mapped + offset, local, nbytes);
 	else
diff --git a/drivers/staging/unisys/visorutil/periodic_work.c b/drivers/staging/unisys/visorutil/periodic_work.c
index 0908bf9..abbfb48 100644
--- a/drivers/staging/unisys/visorutil/periodic_work.c
+++ b/drivers/staging/unisys/visorutil/periodic_work.c
@@ -19,7 +19,6 @@
  *  Helper functions to schedule periodic work in Linux kernel mode.
  */
 
-#include "uniklog.h"
 #include "timskmod.h"
 #include "periodic_work.h"
 
@@ -90,7 +89,6 @@ BOOL visor_periodic_work_nextperiod(struct periodic_work *pw)
 		goto unlock;
 	} else if (queue_delayed_work(pw->workqueue, &pw->work,
 				      pw->jiffy_interval) < 0) {
-		ERRDEV(pw->devnam, "queue_delayed_work failed!");
 		pw->is_scheduled = FALSE;
 		rc = FALSE;
 		goto unlock;
@@ -116,15 +114,12 @@ BOOL visor_periodic_work_start(struct periodic_work *pw)
 		goto unlock;
 	}
 	if (pw->want_to_stop) {
-		ERRDEV(pw->devnam,
-		       "dev_start_periodic_work failed!");
 		rc = FALSE;
 		goto unlock;
 	}
 	INIT_DELAYED_WORK(&pw->work, &periodic_work_func);
 	if (queue_delayed_work(pw->workqueue, &pw->work,
 			       pw->jiffy_interval) < 0) {
-		ERRDEV(pw->devnam, "%s queue_delayed_work failed!", __func__);
 		rc = FALSE;
 		goto unlock;
 	}
@@ -182,7 +177,7 @@ BOOL visor_periodic_work_stop(struct periodic_work *pw)
 			/* We get here if the delayed work was pending as
 			 * delayed work, but was NOT run.
 			 */
-			ASSERT(pw->is_scheduled);
+			WARN_ON(!pw->is_scheduled);
 			pw->is_scheduled = FALSE;
 		} else {
 			/* If we get here, either the delayed work:
@@ -197,14 +192,6 @@ BOOL visor_periodic_work_stop(struct periodic_work *pw)
 		}
 		if (pw->is_scheduled) {
 			write_unlock(&pw->lock);
-			WARNDEV(pw->devnam,
-				"waiting for delayed work...");
-			/* We rely on the delayed work function running here,
-			 * and eventually calling
-			 * visor_periodic_work_nextperiod(),
-			 * which will see that want_to_stop is set, and
-			 * subsequently clear is_scheduled.
-			 */
 			SLEEPJIFFIES(10);
 			write_lock(&pw->lock);
 		} else {
diff --git a/drivers/staging/unisys/visorutil/procobjecttree.c b/drivers/staging/unisys/visorutil/procobjecttree.c
deleted file mode 100644
index 82279ca..0000000
--- a/drivers/staging/unisys/visorutil/procobjecttree.c
+++ /dev/null
@@ -1,353 +0,0 @@
-/* procobjecttree.c
- *
- * Copyright (C) 2010 - 2013 UNISYS CORPORATION
- * All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or (at
- * your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
- * NON INFRINGEMENT.  See the GNU General Public License for more
- * details.
- */
-
-#include "procobjecttree.h"
-
-#define MYDRVNAME "procobjecttree"
-
-
-
-/** This is context info that we stash in each /proc file entry, which we
- *  need in order to call the callback function that supplies the /proc read
- *  info for that file.
- */
-struct proc_dir_entry_context {
-	void (*show_property)(struct seq_file *, void *, int);
-	MYPROCOBJECT *procObject;
-	int propertyIndex;
-
-};
-
-/** This describes the attributes of a tree rooted at
- *  <procDirRoot>/<name[0]>/<name[1]>/...
- *  Properties for each object of this type will be located under
- *  <procDirRoot>/<name[0]>/<name[1]>/.../<objectName>/<propertyName>.
- */
-struct MYPROCTYPE_Tag {
-	const char **name;  /**< node names for this type, ending with NULL */
-	int nNames;         /**< num of node names in <name> */
-
-	/** root dir for this type tree in /proc */
-	struct proc_dir_entry *procDirRoot;
-
-	struct proc_dir_entry **procDirs;  /**< for each node in <name> */
-
-	/** bottom dir where objects will be rooted; i.e., this is
-	 *  <procDirRoot>/<name[0]>/<name[1]>/.../, which is the same as the
-	 *  last entry in the <procDirs> array. */
-	struct proc_dir_entry *procDir;
-
-	/** name for each property that objects of this type can have */
-	const char **propertyNames;
-
-	int nProperties;       /**< num of names in <propertyNames> */
-
-	/** Call this, passing MYPROCOBJECT.context and the property index
-	 *  whenever someone reads the proc entry */
-	void (*show_property)(struct seq_file *, void *, int);
-};
-
-
-
-struct MYPROCOBJECT_Tag {
-	MYPROCTYPE *type;
-
-	/** This is the name of the dir node in /proc under which the
-	 *  properties of this object will appear as files. */
-	char *name;
-
-	int namesize;   /**< number of bytes allocated for name */
-	void *context;  /**< passed to MYPROCTYPE.show_property */
-
-	/** <type.procDirRoot>/<type.name[0]>/<type.name[1]>/.../<name> */
-	struct proc_dir_entry *procDir;
-
-	/** a proc dir entry for each of the properties of the object;
-	 *  properties are identified in MYPROCTYPE.propertyNames, so each of
-	 *  the <procDirProperties> describes a single file like
-	 *  <type.procDirRoot>/<type.name[0]>/<type.name[1]>/...
-	 *           /<name>/<propertyName>
-	 */
-	struct proc_dir_entry **procDirProperties;
-
-	/** this is a holding area for the context information that is needed
-	 *  to run the /proc callback function */
-	struct proc_dir_entry_context *procDirPropertyContexts;
-};
-
-
-
-static struct proc_dir_entry *
-createProcDir(const char *name, struct proc_dir_entry *parent)
-{
-	struct proc_dir_entry *p = proc_mkdir_mode(name, S_IFDIR, parent);
-
-	if (p == NULL)
-		ERRDRV("failed to create /proc directory %s", name);
-	return p;
-}
-
-static struct proc_dir_entry *
-createProcFile(const char *name, struct proc_dir_entry *parent,
-	       const struct file_operations *fops, void *data)
-{
-	struct proc_dir_entry *p = proc_create_data(name, 0, parent,
-						    fops, data);
-	if (p == NULL)
-		ERRDRV("failed to create /proc file %s", name);
-	return p;
-}
-
-static int seq_show(struct seq_file *seq, void *offset);
-static int proc_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, seq_show, PDE_DATA(inode));
-}
-
-static const struct file_operations proc_fops = {
-	.open = proc_open,
-	.read = seq_read,
-	.llseek = seq_lseek,
-	.release = single_release,
-};
-
-
-
-MYPROCTYPE *visor_proc_CreateType(struct proc_dir_entry *procDirRoot,
-				  const char **name,
-				  const char **propertyNames,
-				  void (*show_property)(struct seq_file *,
-							void *, int))
-{
-	int i = 0;
-	MYPROCTYPE *rc = NULL, *type = NULL;
-	struct proc_dir_entry *parent = NULL;
-
-	if (procDirRoot == NULL) {
-		ERRDRV("procDirRoot cannot be NULL!\n");
-		goto Away;
-	}
-	if (name == NULL || name[0] == NULL) {
-		ERRDRV("name must contain at least 1 node name!\n");
-		goto Away;
-	}
-	type = kzalloc(sizeof(MYPROCTYPE), GFP_KERNEL | __GFP_NORETRY);
-	if (type == NULL) {
-		ERRDRV("out of memory\n");
-		goto Away;
-	}
-	type->name = name;
-	type->propertyNames = propertyNames;
-	type->nProperties = 0;
-	type->nNames = 0;
-	type->show_property = show_property;
-	type->procDirRoot = procDirRoot;
-	if (type->propertyNames != NULL)
-		while (type->propertyNames[type->nProperties] != NULL)
-			type->nProperties++;
-	while (type->name[type->nNames] != NULL)
-		type->nNames++;
-	type->procDirs = kzalloc((type->nNames + 1) *
-				 sizeof(struct proc_dir_entry *),
-				 GFP_KERNEL | __GFP_NORETRY);
-	if (type->procDirs == NULL) {
-		ERRDRV("out of memory\n");
-		goto Away;
-	}
-	parent = procDirRoot;
-	for (i = 0; i < type->nNames; i++) {
-		type->procDirs[i] = createProcDir(type->name[i], parent);
-		if (type->procDirs[i] == NULL) {
-			rc = NULL;
-			goto Away;
-		}
-		parent = type->procDirs[i];
-	}
-	type->procDir = type->procDirs[type->nNames-1];
-	rc = type;
-Away:
-	if (rc == NULL) {
-		if (type != NULL) {
-			visor_proc_DestroyType(type);
-			type = NULL;
-		}
-	}
-	return rc;
-}
-EXPORT_SYMBOL_GPL(visor_proc_CreateType);
-
-
-
-void visor_proc_DestroyType(MYPROCTYPE *type)
-{
-	if (type == NULL)
-		return;
-	if (type->procDirs != NULL) {
-		int i = type->nNames-1;
-
-		while (i >= 0) {
-			if (type->procDirs[i] != NULL) {
-				struct proc_dir_entry *parent = NULL;
-
-				if (i == 0)
-					parent = type->procDirRoot;
-				else
-					parent = type->procDirs[i-1];
-				remove_proc_entry(type->name[i], parent);
-			}
-			i--;
-		}
-		kfree(type->procDirs);
-		type->procDirs = NULL;
-	}
-	kfree(type);
-}
-EXPORT_SYMBOL_GPL(visor_proc_DestroyType);
-
-
-
-MYPROCOBJECT *visor_proc_CreateObject(MYPROCTYPE *type,
-				      const char *name, void *context)
-{
-	MYPROCOBJECT *obj = NULL, *rc = NULL;
-	int i = 0;
-
-	if (type == NULL) {
-		ERRDRV("type cannot be NULL\n");
-		goto Away;
-	}
-	obj = kzalloc(sizeof(MYPROCOBJECT), GFP_KERNEL | __GFP_NORETRY);
-	if (obj == NULL) {
-		ERRDRV("out of memory\n");
-		goto Away;
-	}
-	obj->type = type;
-	obj->context = context;
-	if (name == NULL) {
-		obj->name = NULL;
-		obj->procDir = type->procDir;
-	} else {
-		obj->namesize = strlen(name)+1;
-		obj->name = kmalloc(obj->namesize, GFP_KERNEL | __GFP_NORETRY);
-		if (obj->name == NULL) {
-			obj->namesize = 0;
-			ERRDRV("out of memory\n");
-			goto Away;
-		}
-		strcpy(obj->name, name);
-		obj->procDir = createProcDir(obj->name, type->procDir);
-		if (obj->procDir == NULL)
-			goto Away;
-	}
-	obj->procDirPropertyContexts =
-		kzalloc((type->nProperties + 1) *
-			sizeof(struct proc_dir_entry_context),
-			GFP_KERNEL | __GFP_NORETRY);
-	if (obj->procDirPropertyContexts == NULL) {
-		ERRDRV("out of memory\n");
-		goto Away;
-	}
-	obj->procDirProperties = kzalloc((type->nProperties + 1) *
-					 sizeof(struct proc_dir_entry *),
-					 GFP_KERNEL | __GFP_NORETRY);
-	if (obj->procDirProperties == NULL) {
-		ERRDRV("out of memory\n");
-		goto Away;
-	}
-	for (i = 0; i < type->nProperties; i++) {
-		obj->procDirPropertyContexts[i].procObject = obj;
-		obj->procDirPropertyContexts[i].propertyIndex = i;
-		obj->procDirPropertyContexts[i].show_property =
-			type->show_property;
-		if (type->propertyNames[i][0] != '\0') {
-			/* only create properties that have names */
-			obj->procDirProperties[i] =
-				createProcFile(type->propertyNames[i],
-					obj->procDir, &proc_fops,
-					&obj->procDirPropertyContexts[i]);
-			if (obj->procDirProperties[i] == NULL) {
-				rc = NULL;
-				goto Away;
-			}
-		}
-	}
-	rc = obj;
-Away:
-	if (rc == NULL) {
-		if (obj != NULL) {
-			visor_proc_DestroyObject(obj);
-			obj = NULL;
-		}
-	}
-	return rc;
-}
-EXPORT_SYMBOL_GPL(visor_proc_CreateObject);
-
-
-
-void visor_proc_DestroyObject(MYPROCOBJECT *obj)
-{
-	MYPROCTYPE *type = NULL;
-
-	if (obj == NULL)
-		return;
-	type = obj->type;
-	if (type == NULL)
-		return;
-	if (obj->procDirProperties != NULL) {
-		int i = 0;
-
-		for (i = 0; i < type->nProperties; i++) {
-			if (obj->procDirProperties[i] != NULL) {
-				remove_proc_entry(type->propertyNames[i],
-						  obj->procDir);
-				obj->procDirProperties[i] = NULL;
-			}
-		}
-		kfree(obj->procDirProperties);
-		obj->procDirProperties = NULL;
-	}
-
-	kfree(obj->procDirPropertyContexts);
-	obj->procDirPropertyContexts = NULL;
-
-	if (obj->procDir != NULL) {
-		if (obj->name != NULL)
-			remove_proc_entry(obj->name, type->procDir);
-		obj->procDir = NULL;
-	}
-
-	kfree(obj->name);
-	obj->name = NULL;
-	kfree(obj);
-}
-EXPORT_SYMBOL_GPL(visor_proc_DestroyObject);
-
-
-
-static int seq_show(struct seq_file *seq, void *offset)
-{
-	struct proc_dir_entry_context *ctx = seq->private;
-
-	if (ctx == NULL) {
-		ERRDRV("I don't have a freakin' clue...");
-		return 0;
-	}
-	(*ctx->show_property)(seq, ctx->procObject->context,
-			      ctx->propertyIndex);
-	return 0;
-}
diff --git a/drivers/staging/unisys/visorutil/visorkmodutils.c b/drivers/staging/unisys/visorutil/visorkmodutils.c
index 556e264..62f0f70 100644
--- a/drivers/staging/unisys/visorutil/visorkmodutils.c
+++ b/drivers/staging/unisys/visorutil/visorkmodutils.c
@@ -15,7 +15,6 @@
  * details.
  */
 
-#include "uniklog.h"
 #include "timskmod.h"
 
 #define MYDRVNAME "timskmodutils"
diff --git a/drivers/staging/vme/devices/vme_pio2_core.c b/drivers/staging/vme/devices/vme_pio2_core.c
index 84c5a07..eabbcc7 100644
--- a/drivers/staging/vme/devices/vme_pio2_core.c
+++ b/drivers/staging/vme/devices/vme_pio2_core.c
@@ -13,7 +13,6 @@
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
 #include <linux/module.h>
-#include <linux/moduleparam.h>
 #include <linux/types.h>
 #include <linux/kernel.h>
 #include <linux/errno.h>
diff --git a/drivers/staging/vme/devices/vme_pio2_gpio.c b/drivers/staging/vme/devices/vme_pio2_gpio.c
index da34d55..77901b3 100644
--- a/drivers/staging/vme/devices/vme_pio2_gpio.c
+++ b/drivers/staging/vme/devices/vme_pio2_gpio.c
@@ -11,7 +11,6 @@
  */
 
 #include <linux/module.h>
-#include <linux/moduleparam.h>
 #include <linux/types.h>
 #include <linux/kernel.h>
 #include <linux/errno.h>
diff --git a/drivers/staging/vme/devices/vme_user.c b/drivers/staging/vme/devices/vme_user.c
index 8b1f533..19ba749 100644
--- a/drivers/staging/vme/devices/vme_user.c
+++ b/drivers/staging/vme/devices/vme_user.c
@@ -17,6 +17,7 @@
 
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
+#include <linux/atomic.h>
 #include <linux/cdev.h>
 #include <linux/delay.h>
 #include <linux/device.h>
@@ -41,7 +42,6 @@
 
 #include "vme_user.h"
 
-static DEFINE_MUTEX(vme_user_mutex);
 static const char driver_name[] = "vme_user";
 
 static int bus[VME_USER_BUS_MAX];
@@ -100,6 +100,7 @@ struct image_desc {
 	struct device *device;	/* Sysfs device */
 	struct vme_resource *resource;	/* VME resource */
 	int users;		/* Number of current users */
+	int mmap_count;		/* Number of current mmap's */
 };
 static struct image_desc image[VME_DEVS];
 
@@ -135,6 +136,10 @@ static ssize_t vme_user_write(struct file *, const char __user *, size_t,
 	loff_t *);
 static loff_t vme_user_llseek(struct file *, loff_t, int);
 static long vme_user_unlocked_ioctl(struct file *, unsigned int, unsigned long);
+static int vme_user_mmap(struct file *file, struct vm_area_struct *vma);
+
+static void vme_user_vm_open(struct vm_area_struct *vma);
+static void vme_user_vm_close(struct vm_area_struct *vma);
 
 static int vme_user_match(struct vme_dev *);
 static int vme_user_probe(struct vme_dev *);
@@ -148,6 +153,17 @@ static const struct file_operations vme_user_fops = {
 	.llseek = vme_user_llseek,
 	.unlocked_ioctl = vme_user_unlocked_ioctl,
 	.compat_ioctl = vme_user_unlocked_ioctl,
+	.mmap = vme_user_mmap,
+};
+
+struct vme_user_vma_priv {
+	unsigned int minor;
+	atomic_t refcnt;
+};
+
+static const struct vm_operations_struct vme_user_vm_ops = {
+	.open = vme_user_vm_open,
+	.close = vme_user_vm_close,
 };
 
 
@@ -489,6 +505,11 @@ static int vme_user_ioctl(struct inode *inode, struct file *file,
 
 		case VME_SET_MASTER:
 
+			if (image[minor].mmap_count != 0) {
+				pr_warn("Can't adjust mapped window\n");
+				return -EPERM;
+			}
+
 			copied = copy_from_user(&master, argp, sizeof(master));
 			if (copied != 0) {
 				pr_warn("Partial copy from userspace\n");
@@ -555,14 +576,79 @@ static long
 vme_user_unlocked_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 {
 	int ret;
+	struct inode *inode = file_inode(file);
+	unsigned int minor = MINOR(inode->i_rdev);
 
-	mutex_lock(&vme_user_mutex);
-	ret = vme_user_ioctl(file_inode(file), file, cmd, arg);
-	mutex_unlock(&vme_user_mutex);
+	mutex_lock(&image[minor].mutex);
+	ret = vme_user_ioctl(inode, file, cmd, arg);
+	mutex_unlock(&image[minor].mutex);
 
 	return ret;
 }
 
+static void vme_user_vm_open(struct vm_area_struct *vma)
+{
+	struct vme_user_vma_priv *vma_priv = vma->vm_private_data;
+
+	atomic_inc(&vma_priv->refcnt);
+}
+
+static void vme_user_vm_close(struct vm_area_struct *vma)
+{
+	struct vme_user_vma_priv *vma_priv = vma->vm_private_data;
+	unsigned int minor = vma_priv->minor;
+
+	if (!atomic_dec_and_test(&vma_priv->refcnt))
+		return;
+
+	mutex_lock(&image[minor].mutex);
+	image[minor].mmap_count--;
+	mutex_unlock(&image[minor].mutex);
+
+	kfree(vma_priv);
+}
+
+static int vme_user_master_mmap(unsigned int minor, struct vm_area_struct *vma)
+{
+	int err;
+	struct vme_user_vma_priv *vma_priv;
+
+	mutex_lock(&image[minor].mutex);
+
+	err = vme_master_mmap(image[minor].resource, vma);
+	if (err) {
+		mutex_unlock(&image[minor].mutex);
+		return err;
+	}
+
+	vma_priv = kmalloc(sizeof(struct vme_user_vma_priv), GFP_KERNEL);
+	if (vma_priv == NULL) {
+		mutex_unlock(&image[minor].mutex);
+		return -ENOMEM;
+	}
+
+	vma_priv->minor = minor;
+	atomic_set(&vma_priv->refcnt, 1);
+	vma->vm_ops = &vme_user_vm_ops;
+	vma->vm_private_data = vma_priv;
+
+	image[minor].mmap_count++;
+
+	mutex_unlock(&image[minor].mutex);
+
+	return 0;
+}
+
+static int vme_user_mmap(struct file *file, struct vm_area_struct *vma)
+{
+	unsigned int minor = MINOR(file_inode(file)->i_rdev);
+
+	if (type[minor] == MASTER_MINOR)
+		return vme_user_master_mmap(minor, vma);
+
+	return -ENODEV;
+}
+
 
 /*
  * Unallocate a previously allocated buffer
diff --git a/drivers/staging/vt6655/baseband.c b/drivers/staging/vt6655/baseband.c
index 565ba18..b0ea38f 100644
--- a/drivers/staging/vt6655/baseband.c
+++ b/drivers/staging/vt6655/baseband.c
@@ -2021,14 +2021,20 @@ bool BBbVT3253Init(struct vnt_private *priv)
 	if (byRFType == RF_RFMD2959) {
 		if (byLocalID <= REV_ID_VT3253_A1) {
 			for (ii = 0; ii < CB_VT3253_INIT_FOR_RFMD; ii++)
-				bResult &= BBbWriteEmbedded(priv, byVT3253InitTab_RFMD[ii][0], byVT3253InitTab_RFMD[ii][1]);
+				bResult &= BBbWriteEmbedded(priv,
+					byVT3253InitTab_RFMD[ii][0],
+					byVT3253InitTab_RFMD[ii][1]);
 
 		} else {
 			for (ii = 0; ii < CB_VT3253B0_INIT_FOR_RFMD; ii++)
-				bResult &= BBbWriteEmbedded(priv, byVT3253B0_RFMD[ii][0], byVT3253B0_RFMD[ii][1]);
+				bResult &= BBbWriteEmbedded(priv,
+					byVT3253B0_RFMD[ii][0],
+					byVT3253B0_RFMD[ii][1]);
 
 			for (ii = 0; ii < CB_VT3253B0_AGC_FOR_RFMD2959; ii++)
-				bResult &= BBbWriteEmbedded(priv, byVT3253B0_AGC4_RFMD2959[ii][0], byVT3253B0_AGC4_RFMD2959[ii][1]);
+				bResult &= BBbWriteEmbedded(priv,
+					byVT3253B0_AGC4_RFMD2959[ii][0],
+					byVT3253B0_AGC4_RFMD2959[ii][1]);
 
 			VNSvOutPortD(dwIoBase + MAC_REG_ITRTMSET, 0x23);
 			MACvRegBitsOn(dwIoBase, MAC_REG_PAPEDELAY, BIT(0));
@@ -2043,10 +2049,13 @@ bool BBbVT3253Init(struct vnt_private *priv)
 		priv->ldBmThreshold[3] = 0;
 	} else if ((byRFType == RF_AIROHA) || (byRFType == RF_AL2230S)) {
 		for (ii = 0; ii < CB_VT3253B0_INIT_FOR_AIROHA2230; ii++)
-			bResult &= BBbWriteEmbedded(priv, byVT3253B0_AIROHA2230[ii][0], byVT3253B0_AIROHA2230[ii][1]);
+			bResult &= BBbWriteEmbedded(priv,
+				byVT3253B0_AIROHA2230[ii][0],
+				byVT3253B0_AIROHA2230[ii][1]);
 
 		for (ii = 0; ii < CB_VT3253B0_AGC; ii++)
-			bResult &= BBbWriteEmbedded(priv, byVT3253B0_AGC[ii][0], byVT3253B0_AGC[ii][1]);
+			bResult &= BBbWriteEmbedded(priv,
+				byVT3253B0_AGC[ii][0], byVT3253B0_AGC[ii][1]);
 
 		priv->abyBBVGA[0] = 0x1C;
 		priv->abyBBVGA[1] = 0x10;
@@ -2058,10 +2067,14 @@ bool BBbVT3253Init(struct vnt_private *priv)
 		priv->ldBmThreshold[3] = 0;
 	} else if (byRFType == RF_UW2451) {
 		for (ii = 0; ii < CB_VT3253B0_INIT_FOR_UW2451; ii++)
-			bResult &= BBbWriteEmbedded(priv, byVT3253B0_UW2451[ii][0], byVT3253B0_UW2451[ii][1]);
+			bResult &= BBbWriteEmbedded(priv,
+				byVT3253B0_UW2451[ii][0],
+				byVT3253B0_UW2451[ii][1]);
 
 		for (ii = 0; ii < CB_VT3253B0_AGC; ii++)
-			bResult &= BBbWriteEmbedded(priv, byVT3253B0_AGC[ii][0], byVT3253B0_AGC[ii][1]);
+			bResult &= BBbWriteEmbedded(priv,
+				byVT3253B0_AGC[ii][0],
+				byVT3253B0_AGC[ii][1]);
 
 		VNSvOutPortB(dwIoBase + MAC_REG_ITRTMSET, 0x23);
 		MACvRegBitsOn(dwIoBase, MAC_REG_PAPEDELAY, BIT(0));
@@ -2076,7 +2089,9 @@ bool BBbVT3253Init(struct vnt_private *priv)
 		priv->ldBmThreshold[3] = 0;
 	} else if (byRFType == RF_UW2452) {
 		for (ii = 0; ii < CB_VT3253B0_INIT_FOR_UW2451; ii++)
-			bResult &= BBbWriteEmbedded(priv, byVT3253B0_UW2451[ii][0], byVT3253B0_UW2451[ii][1]);
+			bResult &= BBbWriteEmbedded(priv,
+				byVT3253B0_UW2451[ii][0],
+				byVT3253B0_UW2451[ii][1]);
 
 		/* Init ANT B select,TX Config CR09 = 0x61->0x45, 0x45->0x41(VC1/VC2 define, make the ANT_A, ANT_B inverted) */
 		/*bResult &= BBbWriteEmbedded(dwIoBase,0x09,0x41);*/
@@ -2097,7 +2112,8 @@ bool BBbVT3253Init(struct vnt_private *priv)
 		bResult &= BBbWriteEmbedded(priv, 0xb0, 0x58);
 
 		for (ii = 0; ii < CB_VT3253B0_AGC; ii++)
-			bResult &= BBbWriteEmbedded(priv, byVT3253B0_AGC[ii][0], byVT3253B0_AGC[ii][1]);
+			bResult &= BBbWriteEmbedded(priv,
+				byVT3253B0_AGC[ii][0], byVT3253B0_AGC[ii][1]);
 
 		priv->abyBBVGA[0] = 0x14;
 		priv->abyBBVGA[1] = 0x0A;
@@ -2111,10 +2127,13 @@ bool BBbVT3253Init(struct vnt_private *priv)
 
 	} else if (byRFType == RF_VT3226) {
 		for (ii = 0; ii < CB_VT3253B0_INIT_FOR_AIROHA2230; ii++)
-			bResult &= BBbWriteEmbedded(priv, byVT3253B0_AIROHA2230[ii][0], byVT3253B0_AIROHA2230[ii][1]);
+			bResult &= BBbWriteEmbedded(priv,
+				byVT3253B0_AIROHA2230[ii][0],
+				byVT3253B0_AIROHA2230[ii][1]);
 
 		for (ii = 0; ii < CB_VT3253B0_AGC; ii++)
-			bResult &= BBbWriteEmbedded(priv, byVT3253B0_AGC[ii][0], byVT3253B0_AGC[ii][1]);
+			bResult &= BBbWriteEmbedded(priv,
+				byVT3253B0_AGC[ii][0], byVT3253B0_AGC[ii][1]);
 
 		priv->abyBBVGA[0] = 0x1C;
 		priv->abyBBVGA[1] = 0x10;
@@ -2129,7 +2148,9 @@ bool BBbVT3253Init(struct vnt_private *priv)
 		/* {{ RobertYu: 20050104 */
 	} else if (byRFType == RF_AIROHA7230) {
 		for (ii = 0; ii < CB_VT3253B0_INIT_FOR_AIROHA2230; ii++)
-			bResult &= BBbWriteEmbedded(priv, byVT3253B0_AIROHA2230[ii][0], byVT3253B0_AIROHA2230[ii][1]);
+			bResult &= BBbWriteEmbedded(priv,
+				byVT3253B0_AIROHA2230[ii][0],
+				byVT3253B0_AIROHA2230[ii][1]);
 
 
 		/* {{ RobertYu:20050223, request by JerryChung */
@@ -2142,7 +2163,8 @@ bool BBbVT3253Init(struct vnt_private *priv)
 		/* }} */
 
 		for (ii = 0; ii < CB_VT3253B0_AGC; ii++)
-			bResult &= BBbWriteEmbedded(priv, byVT3253B0_AGC[ii][0], byVT3253B0_AGC[ii][1]);
+			bResult &= BBbWriteEmbedded(priv,
+				byVT3253B0_AGC[ii][0], byVT3253B0_AGC[ii][1]);
 
 		priv->abyBBVGA[0] = 0x1C;
 		priv->abyBBVGA[1] = 0x10;
diff --git a/drivers/staging/vt6655/channel.c b/drivers/staging/vt6655/channel.c
index 3c17725..7a71782 100644
--- a/drivers/staging/vt6655/channel.c
+++ b/drivers/staging/vt6655/channel.c
@@ -193,7 +193,8 @@ bool set_channel(void *pDeviceHandler, struct ieee80211_channel *ch)
 	/* clear NAV */
 	MACvRegBitsOn(pDevice->PortOffset, MAC_REG_MACCR, MACCR_CLRNAV);
 
-	/* TX_PE will reserve 3 us for MAX2829 A mode only, it is for better TX throughput */
+	/* TX_PE will reserve 3 us for MAX2829 A mode only,
+	   it is for better TX throughput */
 
 	if (pDevice->byRFType == RF_AIROHA7230)
 		RFbAL7230SelectChannelPostProcess(pDevice, pDevice->byCurrentCh,
@@ -217,9 +218,11 @@ bool set_channel(void *pDeviceHandler, struct ieee80211_channel *ch)
 		/* set HW default power register */
 		MACvSelectPage1(pDevice->PortOffset);
 		RFbSetPower(pDevice, RATE_1M, pDevice->byCurrentCh);
-		VNSvOutPortB(pDevice->PortOffset + MAC_REG_PWRCCK, pDevice->byCurPwr);
+		VNSvOutPortB(pDevice->PortOffset + MAC_REG_PWRCCK,
+			     pDevice->byCurPwr);
 		RFbSetPower(pDevice, RATE_6M, pDevice->byCurrentCh);
-		VNSvOutPortB(pDevice->PortOffset + MAC_REG_PWROFDM, pDevice->byCurPwr);
+		VNSvOutPortB(pDevice->PortOffset + MAC_REG_PWROFDM,
+			     pDevice->byCurPwr);
 		MACvSelectPage0(pDevice->PortOffset);
 
 		spin_unlock_irqrestore(&pDevice->lock, flags);
diff --git a/drivers/staging/vt6655/device_main.c b/drivers/staging/vt6655/device_main.c
index 4324282a..4bb4f8e 100644
--- a/drivers/staging/vt6655/device_main.c
+++ b/drivers/staging/vt6655/device_main.c
@@ -64,9 +64,9 @@
 #include <linux/slab.h>
 
 /*---------------------  Static Definitions -------------------------*/
-//
-// Define module options
-//
+/*
+ * Define module options
+ */
 MODULE_AUTHOR("VIA Networking Technologies, Inc., <lyndonchen@vntek.com.tw>");
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("VIA Networking Solomon-A/B/G Wireless LAN Adapter Driver");
@@ -126,9 +126,9 @@ DEVICE_PARAM(LongRetryLimit, "long frame retry limits");
 
 DEVICE_PARAM(BasebandType, "baseband type");
 
-//
-// Static vars definitions
-//
+/*
+ * Static vars definitions
+ */
 static CHIP_INFO chip_info_table[] = {
 	{ VT3253,       "VIA Networking Solomon-A/B/G Wireless LAN Adapter ",
 	  256, 1,     DEVICE_FLAGS_IP_ALIGN|DEVICE_FLAGS_TX_ALIGN },
@@ -231,9 +231,9 @@ device_set_options(struct vnt_private *pDevice)
 	pr_debug(" byBBType= %d\n", (int)pDevice->byBBType);
 }
 
-//
-// Initialisation of MAC & BBP registers
-//
+/*
+ * Initialisation of MAC & BBP registers
+ */
 
 static void device_init_registers(struct vnt_private *pDevice)
 {
@@ -330,16 +330,6 @@ static void device_init_registers(struct vnt_private *pDevice)
 	/* zonetype initial */
 	pDevice->byOriginalZonetype = pDevice->abyEEPROM[EEP_OFS_ZONETYPE];
 
-	/* Get RFType */
-	pDevice->byRFType = SROMbyReadEmbedded(pDevice->PortOffset, EEP_OFS_RFTYPE);
-
-	/* force change RevID for VT3253 emu */
-	if ((pDevice->byRFType & RF_EMU) != 0)
-			pDevice->byRevId = 0x80;
-
-	pDevice->byRFType &= RF_MASK;
-	pr_debug("pDevice->byRFType = %x\n", pDevice->byRFType);
-
 	if (!pDevice->bZoneRegExist)
 		pDevice->byZoneType = pDevice->abyEEPROM[EEP_OFS_ZONETYPE];
 
@@ -540,12 +530,12 @@ static bool device_init_rings(struct vnt_private *pDevice)
 	void *vir_pool;
 
 	/*allocate all RD/TD rings a single pool*/
-	vir_pool = pci_zalloc_consistent(pDevice->pcid,
+	vir_pool = dma_zalloc_coherent(&pDevice->pcid->dev,
 					 pDevice->sOpts.nRxDescs0 * sizeof(SRxDesc) +
 					 pDevice->sOpts.nRxDescs1 * sizeof(SRxDesc) +
 					 pDevice->sOpts.nTxDescs[0] * sizeof(STxDesc) +
 					 pDevice->sOpts.nTxDescs[1] * sizeof(STxDesc),
-					 &pDevice->pool_dma);
+					 &pDevice->pool_dma, GFP_ATOMIC);
 	if (vir_pool == NULL) {
 		dev_err(&pDevice->pcid->dev, "allocate desc dma memory failed\n");
 		return false;
@@ -559,16 +549,17 @@ static bool device_init_rings(struct vnt_private *pDevice)
 	pDevice->rd1_pool_dma = pDevice->rd0_pool_dma +
 		pDevice->sOpts.nRxDescs0 * sizeof(SRxDesc);
 
-	pDevice->tx0_bufs = pci_zalloc_consistent(pDevice->pcid,
+	pDevice->tx0_bufs = dma_zalloc_coherent(&pDevice->pcid->dev,
 						  pDevice->sOpts.nTxDescs[0] * PKT_BUF_SZ +
 						  pDevice->sOpts.nTxDescs[1] * PKT_BUF_SZ +
 						  CB_BEACON_BUF_SIZE +
 						  CB_MAX_BUF_SIZE,
-						  &pDevice->tx_bufs_dma0);
+						  &pDevice->tx_bufs_dma0,
+						  GFP_ATOMIC);
 	if (pDevice->tx0_bufs == NULL) {
 		dev_err(&pDevice->pcid->dev, "allocate buf dma memory failed\n");
 
-		pci_free_consistent(pDevice->pcid,
+		dma_free_coherent(&pDevice->pcid->dev,
 				    pDevice->sOpts.nRxDescs0 * sizeof(SRxDesc) +
 				    pDevice->sOpts.nRxDescs1 * sizeof(SRxDesc) +
 				    pDevice->sOpts.nTxDescs[0] * sizeof(STxDesc) +
@@ -584,7 +575,7 @@ static bool device_init_rings(struct vnt_private *pDevice)
 	pDevice->td1_pool_dma = pDevice->td0_pool_dma +
 		pDevice->sOpts.nTxDescs[0] * sizeof(STxDesc);
 
-	// vir_pool: pvoid type
+	/* vir_pool: pvoid type */
 	pDevice->apTD0Rings = vir_pool
 		+ pDevice->sOpts.nRxDescs0 * sizeof(SRxDesc)
 		+ pDevice->sOpts.nRxDescs1 * sizeof(SRxDesc);
@@ -614,7 +605,7 @@ static bool device_init_rings(struct vnt_private *pDevice)
 
 static void device_free_rings(struct vnt_private *pDevice)
 {
-	pci_free_consistent(pDevice->pcid,
+	dma_free_coherent(&pDevice->pcid->dev,
 			    pDevice->sOpts.nRxDescs0 * sizeof(SRxDesc) +
 			    pDevice->sOpts.nRxDescs1 * sizeof(SRxDesc) +
 			    pDevice->sOpts.nTxDescs[0] * sizeof(STxDesc) +
@@ -624,7 +615,7 @@ static void device_free_rings(struct vnt_private *pDevice)
 		);
 
 	if (pDevice->tx0_bufs)
-		pci_free_consistent(pDevice->pcid,
+		dma_free_coherent(&pDevice->pcid->dev,
 				    pDevice->sOpts.nTxDescs[0] * PKT_BUF_SZ +
 				    pDevice->sOpts.nTxDescs[1] * PKT_BUF_SZ +
 				    CB_BEACON_BUF_SIZE +
@@ -689,8 +680,8 @@ static void device_free_rd0_ring(struct vnt_private *pDevice)
 		PSRxDesc        pDesc = &(pDevice->aRD0Ring[i]);
 		PDEVICE_RD_INFO  pRDInfo = pDesc->pRDInfo;
 
-		pci_unmap_single(pDevice->pcid, pRDInfo->skb_dma,
-				 pDevice->rx_buf_sz, PCI_DMA_FROMDEVICE);
+		dma_unmap_single(&pDevice->pcid->dev, pRDInfo->skb_dma,
+				 pDevice->rx_buf_sz, DMA_FROM_DEVICE);
 
 		dev_kfree_skb(pRDInfo->skb);
 
@@ -706,8 +697,8 @@ static void device_free_rd1_ring(struct vnt_private *pDevice)
 		PSRxDesc        pDesc = &(pDevice->aRD1Ring[i]);
 		PDEVICE_RD_INFO  pRDInfo = pDesc->pRDInfo;
 
-		pci_unmap_single(pDevice->pcid, pRDInfo->skb_dma,
-				 pDevice->rx_buf_sz, PCI_DMA_FROMDEVICE);
+		dma_unmap_single(&pDevice->pcid->dev, pRDInfo->skb_dma,
+				 pDevice->rx_buf_sz, DMA_FROM_DEVICE);
 
 		dev_kfree_skb(pRDInfo->skb);
 
@@ -775,8 +766,8 @@ static void device_free_td0_ring(struct vnt_private *pDevice)
 		PDEVICE_TD_INFO  pTDInfo = pDesc->pTDInfo;
 
 		if (pTDInfo->skb_dma && (pTDInfo->skb_dma != pTDInfo->buf_dma))
-			pci_unmap_single(pDevice->pcid, pTDInfo->skb_dma,
-					 pTDInfo->skb->len, PCI_DMA_TODEVICE);
+			dma_unmap_single(&pDevice->pcid->dev, pTDInfo->skb_dma,
+					 pTDInfo->skb->len, DMA_TO_DEVICE);
 
 		if (pTDInfo->skb)
 			dev_kfree_skb(pTDInfo->skb);
@@ -794,8 +785,8 @@ static void device_free_td1_ring(struct vnt_private *pDevice)
 		PDEVICE_TD_INFO  pTDInfo = pDesc->pTDInfo;
 
 		if (pTDInfo->skb_dma && (pTDInfo->skb_dma != pTDInfo->buf_dma))
-			pci_unmap_single(pDevice->pcid, pTDInfo->skb_dma,
-					 pTDInfo->skb->len, PCI_DMA_TODEVICE);
+			dma_unmap_single(&pDevice->pcid->dev, pTDInfo->skb_dma,
+					 pTDInfo->skb->len, DMA_TO_DEVICE);
 
 		if (pTDInfo->skb)
 			dev_kfree_skb(pTDInfo->skb);
@@ -841,9 +832,9 @@ static bool device_alloc_rx_buf(struct vnt_private *pDevice, PSRxDesc pRD)
 	ASSERT(pRDInfo->skb);
 
 	pRDInfo->skb_dma =
-		pci_map_single(pDevice->pcid,
+		dma_map_single(&pDevice->pcid->dev,
 			       skb_put(pRDInfo->skb, skb_tailroom(pRDInfo->skb)),
-			       pDevice->rx_buf_sz, PCI_DMA_FROMDEVICE);
+			       pDevice->rx_buf_sz, DMA_FROM_DEVICE);
 
 	*((unsigned int *)&(pRD->m_rd0RD0)) = 0; /* FIX cast */
 
@@ -943,7 +934,7 @@ static int device_tx_srv(struct vnt_private *pDevice, unsigned int uIdx)
 		byTsr0 = pTD->m_td0TD0.byTSR0;
 		byTsr1 = pTD->m_td0TD0.byTSR1;
 
-		//Only the status of first TD in the chain is correct
+		/* Only the status of first TD in the chain is correct */
 		if (pTD->m_td1TD1.byTCR & TCR_STP) {
 			if ((pTD->pTDInfo->byFlags & TD_FLAGS_NETIF_SKB) != 0) {
 
@@ -992,10 +983,10 @@ static void device_free_tx_buf(struct vnt_private *pDevice, PSTxDesc pDesc)
 	PDEVICE_TD_INFO  pTDInfo = pDesc->pTDInfo;
 	struct sk_buff *skb = pTDInfo->skb;
 
-	// pre-allocated buf_dma can't be unmapped.
+	/* pre-allocated buf_dma can't be unmapped. */
 	if (pTDInfo->skb_dma && (pTDInfo->skb_dma != pTDInfo->buf_dma)) {
-		pci_unmap_single(pDevice->pcid, pTDInfo->skb_dma, skb->len,
-				 PCI_DMA_TODEVICE);
+		dma_unmap_single(&pDevice->pcid->dev, pTDInfo->skb_dma,
+				 skb->len, DMA_TO_DEVICE);
 	}
 
 	if (pTDInfo->byFlags & TD_FLAGS_NETIF_SKB)
@@ -1084,7 +1075,7 @@ static  irqreturn_t  device_intr(int irq,  void *dev_instance)
 
 	spin_lock_irqsave(&pDevice->lock, flags);
 
-	//Make sure current page is 0
+	/* Make sure current page is 0 */
 	VNSvInPortB(pDevice->PortOffset + MAC_REG_PAGE1SEL, &byOrgPageSel);
 	if (byOrgPageSel == 1)
 		MACvSelectPage0(pDevice->PortOffset);
@@ -1092,10 +1083,12 @@ static  irqreturn_t  device_intr(int irq,  void *dev_instance)
 		byOrgPageSel = 0;
 
 	MACvReadMIBCounter(pDevice->PortOffset, &dwMIBCounter);
-	// TBD....
-	// Must do this after doing rx/tx, cause ISR bit is slow
-	// than RD/TD write back
-	// update ISR counter
+	/*
+	 * TBD....
+	 * Must do this after doing rx/tx, cause ISR bit is slow
+	 * than RD/TD write back
+	 * update ISR counter
+	 */
 	STAvUpdate802_11Counter(&pDevice->s802_11Counter, &pDevice->scStatistic, dwMIBCounter);
 	while (pDevice->dwIsr != 0) {
 		STAvUpdateIsrStatCounter(&pDevice->scStatistic, pDevice->dwIsr);
@@ -1187,12 +1180,14 @@ static int vnt_tx_packet(struct vnt_private *priv, struct sk_buff *skb)
 {
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
 	PSTxDesc head_td;
-	u32 dma_idx = TYPE_AC0DMA;
+	u32 dma_idx;
 	unsigned long flags;
 
 	spin_lock_irqsave(&priv->lock, flags);
 
-	if (!ieee80211_is_data(hdr->frame_control))
+	if (ieee80211_is_data(hdr->frame_control))
+		dma_idx = TYPE_AC0DMA;
+	else
 		dma_idx = TYPE_TXDMA0;
 
 	if (AVAIL_TD(priv, dma_idx) < 1) {
@@ -1206,6 +1201,9 @@ static int vnt_tx_packet(struct vnt_private *priv, struct sk_buff *skb)
 
 	head_td->pTDInfo->skb = skb;
 
+	if (dma_idx == TYPE_AC0DMA)
+		head_td->pTDInfo->byFlags = TD_FLAGS_NETIF_SKB;
+
 	priv->iTDUsed[dma_idx]++;
 
 	/* Take ownership */
@@ -1234,13 +1232,10 @@ static int vnt_tx_packet(struct vnt_private *priv, struct sk_buff *skb)
 
 	head_td->buff_addr = cpu_to_le32(head_td->pTDInfo->skb_dma);
 
-	if (dma_idx == TYPE_AC0DMA) {
-		head_td->pTDInfo->byFlags = TD_FLAGS_NETIF_SKB;
-
+	if (head_td->pTDInfo->byFlags & TD_FLAGS_NETIF_SKB)
 		MACvTransmitAC0(priv->PortOffset);
-	} else {
+	else
 		MACvTransmit0(priv->PortOffset);
-	}
 
 	spin_unlock_irqrestore(&priv->lock, flags);
 
@@ -1778,6 +1773,12 @@ vt6655_probe(struct pci_dev *pcid, const struct pci_device_id *ent)
 	MACvInitialize(priv->PortOffset);
 	MACvReadEtherAddress(priv->PortOffset, priv->abyCurrentNetAddr);
 
+	/* Get RFType */
+	priv->byRFType = SROMbyReadEmbedded(priv->PortOffset, EEP_OFS_RFTYPE);
+	priv->byRFType &= RF_MASK;
+
+	dev_dbg(&pcid->dev, "RF Type = %x\n", priv->byRFType);
+
 	device_get_options(priv);
 	device_set_options(priv);
 	/* Mask out the options cannot be set to the chip */
diff --git a/drivers/staging/vt6655/dpc.c b/drivers/staging/vt6655/dpc.c
index 3c5b87f..b25ee96 100644
--- a/drivers/staging/vt6655/dpc.c
+++ b/drivers/staging/vt6655/dpc.c
@@ -140,8 +140,8 @@ bool vnt_receive_frame(struct vnt_private *priv, PSRxDesc curr_rd)
 
 	skb = rd_info->skb;
 
-	pci_unmap_single(priv->pcid, rd_info->skb_dma,
-			 priv->rx_buf_sz, PCI_DMA_FROMDEVICE);
+	dma_unmap_single(&priv->pcid->dev, rd_info->skb_dma,
+			 priv->rx_buf_sz, DMA_FROM_DEVICE);
 
 	frame_size = le16_to_cpu(curr_rd->m_rd1RD1.wReqCount)
 			- cpu_to_le16(curr_rd->m_rd0RD0.wResCount);
diff --git a/drivers/staging/vt6655/key.h b/drivers/staging/vt6655/key.h
index c01d4af..261f818 100644
--- a/drivers/staging/vt6655/key.h
+++ b/drivers/staging/vt6655/key.h
@@ -66,4 +66,4 @@ int vnt_key_init_table(struct vnt_private *);
 int vnt_set_keys(struct ieee80211_hw *hw, struct ieee80211_sta *sta,
 		 struct ieee80211_vif *vif, struct ieee80211_key_conf *key);
 
-#endif // __KEY_H__
+#endif /* __KEY_H__ */
diff --git a/drivers/staging/vt6655/mac.c b/drivers/staging/vt6655/mac.c
index 3653a2b..8048b32 100644
--- a/drivers/staging/vt6655/mac.c
+++ b/drivers/staging/vt6655/mac.c
@@ -141,7 +141,7 @@ bool MACbIsIntDisable(void __iomem *dwIoBase)
  */
 void MACvSetShortRetryLimit(void __iomem *dwIoBase, unsigned char byRetryLimit)
 {
-	// set SRT
+	/* set SRT */
 	VNSvOutPortB(dwIoBase + MAC_REG_SRT, byRetryLimit);
 }
 
@@ -162,7 +162,7 @@ void MACvSetShortRetryLimit(void __iomem *dwIoBase, unsigned char byRetryLimit)
  */
 void MACvSetLongRetryLimit(void __iomem *dwIoBase, unsigned char byRetryLimit)
 {
-	// set LRT
+	/* set LRT */
 	VNSvOutPortB(dwIoBase + MAC_REG_LRT, byRetryLimit);
 }
 
@@ -186,7 +186,7 @@ void MACvSetLoopbackMode(void __iomem *dwIoBase, unsigned char byLoopbackMode)
 
 	ASSERT(byLoopbackMode < 3);
 	byLoopbackMode <<= 6;
-	// set TCR
+	/* set TCR */
 	VNSvInPortB(dwIoBase + MAC_REG_TEST, &byOrgValue);
 	byOrgValue = byOrgValue & 0x3F;
 	byOrgValue = byOrgValue | byLoopbackMode;
@@ -210,13 +210,13 @@ void MACvSaveContext(void __iomem *dwIoBase, unsigned char *pbyCxtBuf)
 {
 	int         ii;
 
-	// read page0 register
+	/* read page0 register */
 	for (ii = 0; ii < MAC_MAX_CONTEXT_SIZE_PAGE0; ii++)
 		VNSvInPortB((dwIoBase + ii), (pbyCxtBuf + ii));
 
 	MACvSelectPage1(dwIoBase);
 
-	// read page1 register
+	/* read page1 register */
 	for (ii = 0; ii < MAC_MAX_CONTEXT_SIZE_PAGE1; ii++)
 		VNSvInPortB((dwIoBase + ii), (pbyCxtBuf + MAC_MAX_CONTEXT_SIZE_PAGE0 + ii));
 
@@ -242,27 +242,27 @@ void MACvRestoreContext(void __iomem *dwIoBase, unsigned char *pbyCxtBuf)
 	int         ii;
 
 	MACvSelectPage1(dwIoBase);
-	// restore page1
+	/* restore page1 */
 	for (ii = 0; ii < MAC_MAX_CONTEXT_SIZE_PAGE1; ii++)
 		VNSvOutPortB((dwIoBase + ii), *(pbyCxtBuf + MAC_MAX_CONTEXT_SIZE_PAGE0 + ii));
 
 	MACvSelectPage0(dwIoBase);
 
-	// restore RCR,TCR,IMR...
+	/* restore RCR,TCR,IMR... */
 	for (ii = MAC_REG_RCR; ii < MAC_REG_ISR; ii++)
 		VNSvOutPortB(dwIoBase + ii, *(pbyCxtBuf + ii));
 
-	// restore MAC Config.
+	/* restore MAC Config. */
 	for (ii = MAC_REG_LRT; ii < MAC_REG_PAGE1SEL; ii++)
 		VNSvOutPortB(dwIoBase + ii, *(pbyCxtBuf + ii));
 
 	VNSvOutPortB(dwIoBase + MAC_REG_CFG, *(pbyCxtBuf + MAC_REG_CFG));
 
-	// restore PS Config.
+	/* restore PS Config. */
 	for (ii = MAC_REG_PSCFG; ii < MAC_REG_BBREGCTL; ii++)
 		VNSvOutPortB(dwIoBase + ii, *(pbyCxtBuf + ii));
 
-	// restore CURR_RX_DESC_ADDR, CURR_TX_DESC_ADDR
+	/* restore CURR_RX_DESC_ADDR, CURR_TX_DESC_ADDR */
 	VNSvOutPortD(dwIoBase + MAC_REG_TXDMAPTR0, *(unsigned long *)(pbyCxtBuf + MAC_REG_TXDMAPTR0));
 	VNSvOutPortD(dwIoBase + MAC_REG_AC0DMAPTR, *(unsigned long *)(pbyCxtBuf + MAC_REG_AC0DMAPTR));
 	VNSvOutPortD(dwIoBase + MAC_REG_BCNDMAPTR, *(unsigned long *)(pbyCxtBuf + MAC_REG_BCNDMAPTR));
@@ -290,7 +290,7 @@ bool MACbSoftwareReset(void __iomem *dwIoBase)
 	unsigned char byData;
 	unsigned short ww;
 
-	// turn on HOSTCR_SOFTRST, just write 0x01 to reset
+	/* turn on HOSTCR_SOFTRST, just write 0x01 to reset */
 	VNSvOutPortB(dwIoBase + MAC_REG_HOSTCR, 0x01);
 
 	for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
@@ -321,15 +321,15 @@ bool MACbSafeSoftwareReset(void __iomem *dwIoBase)
 	unsigned char abyTmpRegData[MAC_MAX_CONTEXT_SIZE_PAGE0+MAC_MAX_CONTEXT_SIZE_PAGE1];
 	bool bRetVal;
 
-	// PATCH....
-	// save some important register's value, then do
-	// reset, then restore register's value
-
-	// save MAC context
+	/* PATCH....
+	 * save some important register's value, then do
+	 * reset, then restore register's value
+	 */
+	/* save MAC context */
 	MACvSaveContext(dwIoBase, abyTmpRegData);
-	// do reset
+	/* do reset */
 	bRetVal = MACbSoftwareReset(dwIoBase);
-	// restore MAC context, except CR0
+	/* restore MAC context, except CR0 */
 	MACvRestoreContext(dwIoBase, abyTmpRegData);
 
 	return bRetVal;
@@ -354,9 +354,9 @@ bool MACbSafeRxOff(void __iomem *dwIoBase)
 	unsigned long dwData;
 	unsigned char byData;
 
-	// turn off wow temp for turn off Rx safely
+	/* turn off wow temp for turn off Rx safely */
 
-	// Clear RX DMA0,1
+	/* Clear RX DMA0,1 */
 	VNSvOutPortD(dwIoBase + MAC_REG_RXDMACTL0, DMACTL_CLRRUN);
 	VNSvOutPortD(dwIoBase + MAC_REG_RXDMACTL1, DMACTL_CLRRUN);
 	for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
@@ -380,9 +380,9 @@ bool MACbSafeRxOff(void __iomem *dwIoBase)
 		return false;
 	}
 
-	// try to safe shutdown RX
+	/* try to safe shutdown RX */
 	MACvRegBitsOff(dwIoBase, MAC_REG_HOSTCR, HOSTCR_RXON);
-	// W_MAX_TIMEOUT is the timeout period
+	/* W_MAX_TIMEOUT is the timeout period */
 	for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
 		VNSvInPortB(dwIoBase + MAC_REG_HOSTCR, &byData);
 		if (!(byData & HOSTCR_RXONST))
@@ -415,10 +415,10 @@ bool MACbSafeTxOff(void __iomem *dwIoBase)
 	unsigned long dwData;
 	unsigned char byData;
 
-	// Clear TX DMA
-	//Tx0
+	/* Clear TX DMA */
+	/* Tx0 */
 	VNSvOutPortD(dwIoBase + MAC_REG_TXDMACTL0, DMACTL_CLRRUN);
-	//AC0
+	/* AC0 */
 	VNSvOutPortD(dwIoBase + MAC_REG_AC0DMACTL, DMACTL_CLRRUN);
 
 	for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
@@ -442,10 +442,10 @@ bool MACbSafeTxOff(void __iomem *dwIoBase)
 		return false;
 	}
 
-	// try to safe shutdown TX
+	/* try to safe shutdown TX */
 	MACvRegBitsOff(dwIoBase, MAC_REG_HOSTCR, HOSTCR_TXON);
 
-	// W_MAX_TIMEOUT is the timeout period
+	/* W_MAX_TIMEOUT is the timeout period */
 	for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
 		VNSvInPortB(dwIoBase + MAC_REG_HOSTCR, &byData);
 		if (!(byData & HOSTCR_TXONST))
@@ -509,10 +509,10 @@ bool MACbSafeStop(void __iomem *dwIoBase)
  */
 bool MACbShutdown(void __iomem *dwIoBase)
 {
-	// disable MAC IMR
+	/* disable MAC IMR */
 	MACvIntDisable(dwIoBase);
 	MACvSetLoopbackMode(dwIoBase, MAC_LB_INTERNAL);
-	// stop the adapter
+	/* stop the adapter */
 	if (!MACbSafeStop(dwIoBase)) {
 		MACvSetLoopbackMode(dwIoBase, MAC_LB_NONE);
 		return false;
@@ -536,18 +536,18 @@ bool MACbShutdown(void __iomem *dwIoBase)
  */
 void MACvInitialize(void __iomem *dwIoBase)
 {
-	// clear sticky bits
+	/* clear sticky bits */
 	MACvClearStckDS(dwIoBase);
-	// disable force PME-enable
+	/* disable force PME-enable */
 	VNSvOutPortB(dwIoBase + MAC_REG_PMC1, PME_OVR);
-	// only 3253 A
+	/* only 3253 A */
 
-	// do reset
+	/* do reset */
 	MACbSoftwareReset(dwIoBase);
 
-	// reset TSF counter
+	/* reset TSF counter */
 	VNSvOutPortB(dwIoBase + MAC_REG_TFTCTL, TFTCTL_TSFCNTRST);
-	// enable TSF counter
+	/* enable TSF counter */
 	VNSvOutPortB(dwIoBase + MAC_REG_TFTCTL, TFTCTL_TSFCNTREN);
 }
 
@@ -678,7 +678,7 @@ void MACvSetCurrTx0DescAddrEx(void __iomem *dwIoBase, unsigned long dwCurrDescAd
  * Return Value: none
  *
  */
-//TxDMA1 = AC0DMA
+/* TxDMA1 = AC0DMA */
 void MACvSetCurrAC0DescAddrEx(void __iomem *dwIoBase, unsigned long dwCurrDescAddr)
 {
 	unsigned short ww;
@@ -733,7 +733,7 @@ void MACvTimer0MicroSDelay(void __iomem *dwIoBase, unsigned int uDelay)
 	VNSvOutPortB(dwIoBase + MAC_REG_TMCTL0, 0);
 	VNSvOutPortD(dwIoBase + MAC_REG_TMDATA0, uDelay);
 	VNSvOutPortB(dwIoBase + MAC_REG_TMCTL0, (TMCTL_TMD | TMCTL_TE));
-	for (ii = 0; ii < 66; ii++) {  // assume max PCI clock is 66Mhz
+	for (ii = 0; ii < 66; ii++) {  /* assume max PCI clock is 66Mhz */
 		for (uu = 0; uu < uDelay; uu++) {
 			VNSvInPortB(dwIoBase + MAC_REG_TMCTL0, &byValue);
 			if ((byValue == 0) ||
@@ -780,14 +780,14 @@ bool MACbPSWakeup(void __iomem *dwIoBase)
 {
 	unsigned char byOrgValue;
 	unsigned int ww;
-	// Read PSCTL
+	/* Read PSCTL */
 	if (MACbIsRegBitsOff(dwIoBase, MAC_REG_PSCTL, PSCTL_PS))
 		return true;
 
-	// Disable PS
+	/* Disable PS */
 	MACvRegBitsOff(dwIoBase, MAC_REG_PSCTL, PSCTL_PSEN);
 
-	// Check if SyncFlushOK
+	/* Check if SyncFlushOK */
 	for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
 		VNSvInPortB(dwIoBase + MAC_REG_PSCTL, &byOrgValue);
 		if (byOrgValue & PSCTL_WAKEDONE)
@@ -859,7 +859,7 @@ void MACvSetKeyEntry(void __iomem *dwIoBase, unsigned short wKeyCtl, unsigned in
 
 	wOffset += (uKeyIdx * 4);
 	for (ii = 0; ii < 4; ii++) {
-		// always push 128 bits
+		/* always push 128 bits */
 		pr_debug("3.(%d) wOffset: %d, Data: %X\n",
 			 ii, wOffset+ii, *pdwKey);
 		VNSvOutPortW(dwIoBase + MAC_REG_MISCFFNDEX, wOffset+ii);
diff --git a/drivers/staging/vt6655/mib.c b/drivers/staging/vt6655/mib.c
index d2f351d..d55c762 100644
--- a/drivers/staging/vt6655/mib.c
+++ b/drivers/staging/vt6655/mib.c
@@ -63,51 +63,51 @@ void STAvUpdateIsrStatCounter(PSStatCounter pStatistic, unsigned long dwIsr)
 	/**********************/
 	/* ABNORMAL interrupt */
 	/**********************/
-	// not any IMR bit invoke irq
+	/* not any IMR bit invoke irq */
 
 	if (dwIsr == 0) {
 		pStatistic->ISRStat.dwIsrUnknown++;
 		return;
 	}
 
-//Added by Kyle
-	if (dwIsr & ISR_TXDMA0)               // ISR, bit0
-		pStatistic->ISRStat.dwIsrTx0OK++;             // TXDMA0 successful
+/* Added by Kyle */
+	if (dwIsr & ISR_TXDMA0)               /* ISR, bit0 */
+		pStatistic->ISRStat.dwIsrTx0OK++;             /* TXDMA0 successful */
 
-	if (dwIsr & ISR_AC0DMA)               // ISR, bit1
-		pStatistic->ISRStat.dwIsrAC0TxOK++;           // AC0DMA successful
+	if (dwIsr & ISR_AC0DMA)               /* ISR, bit1 */
+		pStatistic->ISRStat.dwIsrAC0TxOK++;           /* AC0DMA successful */
 
-	if (dwIsr & ISR_BNTX)                 // ISR, bit2
-		pStatistic->ISRStat.dwIsrBeaconTxOK++;        // BeaconTx successful
+	if (dwIsr & ISR_BNTX)                 /* ISR, bit2 */
+		pStatistic->ISRStat.dwIsrBeaconTxOK++;        /* BeaconTx successful */
 
-	if (dwIsr & ISR_RXDMA0)               // ISR, bit3
-		pStatistic->ISRStat.dwIsrRx0OK++;             // Rx0 successful
+	if (dwIsr & ISR_RXDMA0)               /* ISR, bit3 */
+		pStatistic->ISRStat.dwIsrRx0OK++;             /* Rx0 successful */
 
-	if (dwIsr & ISR_TBTT)                 // ISR, bit4
-		pStatistic->ISRStat.dwIsrTBTTInt++;           // TBTT successful
+	if (dwIsr & ISR_TBTT)                 /* ISR, bit4 */
+		pStatistic->ISRStat.dwIsrTBTTInt++;           /* TBTT successful */
 
-	if (dwIsr & ISR_SOFTTIMER)            // ISR, bit6
+	if (dwIsr & ISR_SOFTTIMER)            /* ISR, bit6 */
 		pStatistic->ISRStat.dwIsrSTIMERInt++;
 
-	if (dwIsr & ISR_WATCHDOG)             // ISR, bit7
+	if (dwIsr & ISR_WATCHDOG)             /* ISR, bit7 */
 		pStatistic->ISRStat.dwIsrWatchDog++;
 
-	if (dwIsr & ISR_FETALERR)             // ISR, bit8
+	if (dwIsr & ISR_FETALERR)             /* ISR, bit8 */
 		pStatistic->ISRStat.dwIsrUnrecoverableError++;
 
-	if (dwIsr & ISR_SOFTINT)              // ISR, bit9
-		pStatistic->ISRStat.dwIsrSoftInterrupt++;     // software interrupt
+	if (dwIsr & ISR_SOFTINT)              /* ISR, bit9 */
+		pStatistic->ISRStat.dwIsrSoftInterrupt++;     /* software interrupt */
 
-	if (dwIsr & ISR_MIBNEARFULL)          // ISR, bit10
+	if (dwIsr & ISR_MIBNEARFULL)          /* ISR, bit10 */
 		pStatistic->ISRStat.dwIsrMIBNearfull++;
 
-	if (dwIsr & ISR_RXNOBUF)              // ISR, bit11
-		pStatistic->ISRStat.dwIsrRxNoBuf++;           // Rx No Buff
+	if (dwIsr & ISR_RXNOBUF)              /* ISR, bit11 */
+		pStatistic->ISRStat.dwIsrRxNoBuf++;           /* Rx No Buff */
 
-	if (dwIsr & ISR_RXDMA1)               // ISR, bit12
-		pStatistic->ISRStat.dwIsrRx1OK++;             // Rx1 successful
+	if (dwIsr & ISR_RXDMA1)               /* ISR, bit12 */
+		pStatistic->ISRStat.dwIsrRx1OK++;             /* Rx1 successful */
 
-	if (dwIsr & ISR_SOFTTIMER1)           // ISR, bit21
+	if (dwIsr & ISR_SOFTTIMER1)           /* ISR, bit21 */
 		pStatistic->ISRStat.dwIsrSTIMER1Int++;
 }
 
diff --git a/drivers/staging/vt6655/rf.c b/drivers/staging/vt6655/rf.c
index 941b2ad..7626f63 100644
--- a/drivers/staging/vt6655/rf.c
+++ b/drivers/staging/vt6655/rf.c
@@ -794,6 +794,7 @@ bool RFbSetPower(
 		break;
 	case RATE_6M:
 	case RATE_9M:
+	case RATE_12M:
 	case RATE_18M:
 		byPwr = priv->abyOFDMPwrTbl[uCH];
 		if (priv->byRFType == RF_UW2452)
diff --git a/drivers/staging/vt6655/rxtx.c b/drivers/staging/vt6655/rxtx.c
index 07ce3fd..7468776 100644
--- a/drivers/staging/vt6655/rxtx.c
+++ b/drivers/staging/vt6655/rxtx.c
@@ -64,21 +64,21 @@
 /*---------------------  Static Functions  --------------------------*/
 
 /*---------------------  Static Definitions -------------------------*/
-#define CRITICAL_PACKET_LEN      256    // if packet size < 256 -> in-direct send
-                                        //    packet size >= 256 -> direct send
+#define CRITICAL_PACKET_LEN      256    /* if packet size < 256 -> in-direct send
+                                            packet size >= 256 -> direct send */
 
 static const unsigned short wTimeStampOff[2][MAX_RATE] = {
-	{384, 288, 226, 209, 54, 43, 37, 31, 28, 25, 24, 23}, // Long Preamble
-	{384, 192, 130, 113, 54, 43, 37, 31, 28, 25, 24, 23}, // Short Preamble
+	{384, 288, 226, 209, 54, 43, 37, 31, 28, 25, 24, 23}, /* Long Preamble */
+	{384, 192, 130, 113, 54, 43, 37, 31, 28, 25, 24, 23}, /* Short Preamble */
 };
 
 static const unsigned short wFB_Opt0[2][5] = {
-	{RATE_12M, RATE_18M, RATE_24M, RATE_36M, RATE_48M}, // fallback_rate0
-	{RATE_12M, RATE_12M, RATE_18M, RATE_24M, RATE_36M}, // fallback_rate1
+	{RATE_12M, RATE_18M, RATE_24M, RATE_36M, RATE_48M}, /* fallback_rate0 */
+	{RATE_12M, RATE_12M, RATE_18M, RATE_24M, RATE_36M}, /* fallback_rate1 */
 };
 static const unsigned short wFB_Opt1[2][5] = {
-	{RATE_12M, RATE_18M, RATE_24M, RATE_24M, RATE_36M}, // fallback_rate0
-	{RATE_6M , RATE_6M,  RATE_12M, RATE_12M, RATE_18M}, // fallback_rate1
+	{RATE_12M, RATE_18M, RATE_24M, RATE_24M, RATE_36M}, /* fallback_rate0 */
+	{RATE_6M , RATE_6M,  RATE_12M, RATE_12M, RATE_18M}, /* fallback_rate1 */
 };
 
 #define RTSDUR_BB       0
@@ -116,7 +116,7 @@ void
 s_vGenerateTxParameter(
 	struct vnt_private *pDevice,
 	unsigned char byPktType,
-	void *pTxBufHead,
+	struct vnt_tx_fifo_head *,
 	void *pvRrvTime,
 	void *pvRTS,
 	void *pvCTS,
@@ -176,9 +176,9 @@ s_uGetTxRsvTime(
 	unsigned int uDataTime, uAckTime;
 
 	uDataTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, cbFrameLength, wRate);
-	if (byPktType == PK_TYPE_11B) //llb,CCK mode
+	if (byPktType == PK_TYPE_11B) /* llb,CCK mode */
 		uAckTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, (unsigned short)pDevice->byTopCCKBasicRate);
-	else //11g 2.4G OFDM mode & 11a 5G OFDM mode
+	else /* 11g 2.4G OFDM mode & 11a 5G OFDM mode */
 		uAckTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, (unsigned short)pDevice->byTopOFDMBasicRate);
 
 	if (bNeedAck)
@@ -194,7 +194,7 @@ static __le16 vnt_rxtx_rsvtime_le16(struct vnt_private *priv, u8 pkt_type,
 						frame_length, rate, need_ack));
 }
 
-//byFreqType: 0=>5GHZ 1=>2.4GHZ
+/* byFreqType: 0=>5GHZ 1=>2.4GHZ */
 static
 __le16
 s_uGetRTSCTSRsvTime(
@@ -210,29 +210,29 @@ s_uGetRTSCTSRsvTime(
 	uRrvTime = uRTSTime = uCTSTime = uAckTime = uDataTime = 0;
 
 	uDataTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, cbFrameLength, wCurrentRate);
-	if (byRTSRsvType == 0) { //RTSTxRrvTime_bb
+	if (byRTSRsvType == 0) { /* RTSTxRrvTime_bb */
 		uRTSTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 20, pDevice->byTopCCKBasicRate);
 		uCTSTime = uAckTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopCCKBasicRate);
-	} else if (byRTSRsvType == 1) { //RTSTxRrvTime_ba, only in 2.4GHZ
+	} else if (byRTSRsvType == 1) { /* RTSTxRrvTime_ba, only in 2.4GHZ */
 		uRTSTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 20, pDevice->byTopCCKBasicRate);
 		uCTSTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopCCKBasicRate);
 		uAckTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopOFDMBasicRate);
-	} else if (byRTSRsvType == 2) { //RTSTxRrvTime_aa
+	} else if (byRTSRsvType == 2) { /* RTSTxRrvTime_aa */
 		uRTSTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 20, pDevice->byTopOFDMBasicRate);
 		uCTSTime = uAckTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopOFDMBasicRate);
-	} else if (byRTSRsvType == 3) { //CTSTxRrvTime_ba, only in 2.4GHZ
+	} else if (byRTSRsvType == 3) { /* CTSTxRrvTime_ba, only in 2.4GHZ */
 		uCTSTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopCCKBasicRate);
 		uAckTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopOFDMBasicRate);
 		uRrvTime = uCTSTime + uAckTime + uDataTime + 2*pDevice->uSIFS;
 		return cpu_to_le16((u16)uRrvTime);
 	}
 
-	//RTSRrvTime
+	/* RTSRrvTime */
 	uRrvTime = uRTSTime + uCTSTime + uAckTime + uDataTime + 3*pDevice->uSIFS;
 	return cpu_to_le16((u16)uRrvTime);
 }
 
-//byFreqType 0: 5GHz, 1:2.4Ghz
+/* byFreqType 0: 5GHz, 1:2.4Ghz */
 static
 unsigned int
 s_uGetDataDuration(
@@ -248,22 +248,22 @@ s_uGetDataDuration(
 	unsigned char byFBOption
 )
 {
-	bool bLastFrag = 0;
+	bool bLastFrag = false;
 	unsigned int uAckTime = 0, uNextPktTime = 0;
 
 	if (uFragIdx == (uMACfragNum-1))
-		bLastFrag = 1;
+		bLastFrag = true;
 
 	switch (byDurType) {
-	case DATADUR_B:    //DATADUR_B
-		if (((uMACfragNum == 1)) || bLastFrag) {//Non Frag or Last Frag
+	case DATADUR_B:    /* DATADUR_B */
+		if (((uMACfragNum == 1)) || bLastFrag) {/* Non Frag or Last Frag */
 			if (bNeedAck) {
 				uAckTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopCCKBasicRate);
 				return pDevice->uSIFS + uAckTime;
 			} else {
 				return 0;
 			}
-		} else {//First Frag or Mid Frag
+		} else {/* First Frag or Mid Frag */
 			if (uFragIdx == (uMACfragNum-2))
 				uNextPktTime = s_uGetTxRsvTime(pDevice, byPktType, cbLastFragmentSize, wRate, bNeedAck);
 			else
@@ -278,15 +278,15 @@ s_uGetDataDuration(
 		}
 		break;
 
-	case DATADUR_A:    //DATADUR_A
-		if (((uMACfragNum == 1)) || bLastFrag) {//Non Frag or Last Frag
+	case DATADUR_A:    /* DATADUR_A */
+		if (((uMACfragNum == 1)) || bLastFrag) {/* Non Frag or Last Frag */
 			if (bNeedAck) {
 				uAckTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopOFDMBasicRate);
 				return pDevice->uSIFS + uAckTime;
 			} else {
 				return 0;
 			}
-		} else {//First Frag or Mid Frag
+		} else {/* First Frag or Mid Frag */
 			if (uFragIdx == (uMACfragNum-2))
 				uNextPktTime = s_uGetTxRsvTime(pDevice, byPktType, cbLastFragmentSize, wRate, bNeedAck);
 			else
@@ -301,15 +301,15 @@ s_uGetDataDuration(
 		}
 		break;
 
-	case DATADUR_A_F0:    //DATADUR_A_F0
-		if (((uMACfragNum == 1)) || bLastFrag) {//Non Frag or Last Frag
+	case DATADUR_A_F0:    /* DATADUR_A_F0 */
+		if (((uMACfragNum == 1)) || bLastFrag) {/* Non Frag or Last Frag */
 			if (bNeedAck) {
 				uAckTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopOFDMBasicRate);
 				return pDevice->uSIFS + uAckTime;
 			} else {
 				return 0;
 			}
-		} else { //First Frag or Mid Frag
+		} else { /* First Frag or Mid Frag */
 			if (byFBOption == AUTO_FB_0) {
 				if (wRate < RATE_18M)
 					wRate = RATE_18M;
@@ -321,7 +321,7 @@ s_uGetDataDuration(
 				else
 					uNextPktTime = s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt0[FB_RATE0][wRate-RATE_18M], bNeedAck);
 
-			} else { // (byFBOption == AUTO_FB_1)
+			} else { /* (byFBOption == AUTO_FB_1) */
 				if (wRate < RATE_18M)
 					wRate = RATE_18M;
 				else if (wRate > RATE_54M)
@@ -343,15 +343,15 @@ s_uGetDataDuration(
 		}
 		break;
 
-	case DATADUR_A_F1:    //DATADUR_A_F1
-		if (((uMACfragNum == 1)) || bLastFrag) {//Non Frag or Last Frag
+	case DATADUR_A_F1:    /* DATADUR_A_F1 */
+		if (((uMACfragNum == 1)) || bLastFrag) { /* Non Frag or Last Frag */
 			if (bNeedAck) {
 				uAckTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopOFDMBasicRate);
 				return pDevice->uSIFS + uAckTime;
 			} else {
 				return 0;
 			}
-		} else { //First Frag or Mid Frag
+		} else { /* First Frag or Mid Frag */
 			if (byFBOption == AUTO_FB_0) {
 				if (wRate < RATE_18M)
 					wRate = RATE_18M;
@@ -363,7 +363,7 @@ s_uGetDataDuration(
 				else
 					uNextPktTime = s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt0[FB_RATE1][wRate-RATE_18M], bNeedAck);
 
-			} else { // (byFBOption == AUTO_FB_1)
+			} else { /* (byFBOption == AUTO_FB_1) */
 				if (wRate < RATE_18M)
 					wRate = RATE_18M;
 				else if (wRate > RATE_54M)
@@ -391,7 +391,7 @@ s_uGetDataDuration(
 	return 0;
 }
 
-//byFreqType: 0=>5GHZ 1=>2.4GHZ
+/* byFreqType: 0=>5GHZ 1=>2.4GHZ */
 static
 __le16
 s_uGetRTSCTSDuration(
@@ -407,26 +407,26 @@ s_uGetRTSCTSDuration(
 	unsigned int uCTSTime = 0, uDurTime = 0;
 
 	switch (byDurType) {
-	case RTSDUR_BB:    //RTSDuration_bb
+	case RTSDUR_BB:    /* RTSDuration_bb */
 		uCTSTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopCCKBasicRate);
 		uDurTime = uCTSTime + 2*pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wRate, bNeedAck);
 		break;
 
-	case RTSDUR_BA:    //RTSDuration_ba
+	case RTSDUR_BA:    /* RTSDuration_ba */
 		uCTSTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopCCKBasicRate);
 		uDurTime = uCTSTime + 2*pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wRate, bNeedAck);
 		break;
 
-	case RTSDUR_AA:    //RTSDuration_aa
+	case RTSDUR_AA:    /* RTSDuration_aa */
 		uCTSTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopOFDMBasicRate);
 		uDurTime = uCTSTime + 2*pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wRate, bNeedAck);
 		break;
 
-	case CTSDUR_BA:    //CTSDuration_ba
+	case CTSDUR_BA:    /* CTSDuration_ba */
 		uDurTime = pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wRate, bNeedAck);
 		break;
 
-	case RTSDUR_BA_F0: //RTSDuration_ba_f0
+	case RTSDUR_BA_F0: /* RTSDuration_ba_f0 */
 		uCTSTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopCCKBasicRate);
 		if ((byFBOption == AUTO_FB_0) && (wRate >= RATE_18M) && (wRate <= RATE_54M))
 			uDurTime = uCTSTime + 2 * pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt0[FB_RATE0][wRate-RATE_18M], bNeedAck);
@@ -435,7 +435,7 @@ s_uGetRTSCTSDuration(
 
 		break;
 
-	case RTSDUR_AA_F0: //RTSDuration_aa_f0
+	case RTSDUR_AA_F0: /* RTSDuration_aa_f0 */
 		uCTSTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopOFDMBasicRate);
 		if ((byFBOption == AUTO_FB_0) && (wRate >= RATE_18M) && (wRate <= RATE_54M))
 			uDurTime = uCTSTime + 2*pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt0[FB_RATE0][wRate-RATE_18M], bNeedAck);
@@ -444,7 +444,7 @@ s_uGetRTSCTSDuration(
 
 		break;
 
-	case RTSDUR_BA_F1: //RTSDuration_ba_f1
+	case RTSDUR_BA_F1: /* RTSDuration_ba_f1 */
 		uCTSTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopCCKBasicRate);
 		if ((byFBOption == AUTO_FB_0) && (wRate >= RATE_18M) && (wRate <= RATE_54M))
 			uDurTime = uCTSTime + 2*pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt0[FB_RATE1][wRate-RATE_18M], bNeedAck);
@@ -453,7 +453,7 @@ s_uGetRTSCTSDuration(
 
 		break;
 
-	case RTSDUR_AA_F1: //RTSDuration_aa_f1
+	case RTSDUR_AA_F1: /* RTSDuration_aa_f1 */
 		uCTSTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopOFDMBasicRate);
 		if ((byFBOption == AUTO_FB_0) && (wRate >= RATE_18M) && (wRate <= RATE_54M))
 			uDurTime = uCTSTime + 2*pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt0[FB_RATE1][wRate-RATE_18M], bNeedAck);
@@ -462,7 +462,7 @@ s_uGetRTSCTSDuration(
 
 		break;
 
-	case CTSDUR_BA_F0: //CTSDuration_ba_f0
+	case CTSDUR_BA_F0: /* CTSDuration_ba_f0 */
 		if ((byFBOption == AUTO_FB_0) && (wRate >= RATE_18M) && (wRate <= RATE_54M))
 			uDurTime = pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt0[FB_RATE0][wRate-RATE_18M], bNeedAck);
 		else if ((byFBOption == AUTO_FB_1) && (wRate >= RATE_18M) && (wRate <= RATE_54M))
@@ -470,7 +470,7 @@ s_uGetRTSCTSDuration(
 
 		break;
 
-	case CTSDUR_BA_F1: //CTSDuration_ba_f1
+	case CTSDUR_BA_F1: /* CTSDuration_ba_f1 */
 		if ((byFBOption == AUTO_FB_0) && (wRate >= RATE_18M) && (wRate <= RATE_54M))
 			uDurTime = pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt0[FB_RATE1][wRate-RATE_18M], bNeedAck);
 		else if ((byFBOption == AUTO_FB_1) && (wRate >= RATE_18M) && (wRate <= RATE_54M))
@@ -565,7 +565,7 @@ s_uFillDataHead(
 			buf->time_stamp_off_b = vnt_time_stamp_off(pDevice, pDevice->byTopCCKBasicRate);
 
 			return buf->duration_a;
-		} //if (byFBOption == AUTO_FB_NONE)
+		} /* if (byFBOption == AUTO_FB_NONE) */
 	} else if (byPktType == PK_TYPE_11A) {
 		if ((byFBOption != AUTO_FB_NONE)) {
 			/* Auto Fallback */
@@ -651,13 +651,13 @@ s_vFillRTSHead(
 		return;
 
 	if (bDisCRC) {
-		// When CRCDIS bit is on, H/W forgot to generate FCS for RTS frame,
-		// in this case we need to decrease its length by 4.
+		/* When CRCDIS bit is on, H/W forgot to generate FCS for RTS frame,
+		 in this case we need to decrease its length by 4. */
 		uRTSFrameLen -= 4;
 	}
 
-	// Note: So far RTSHead dosen't appear in ATIM & Beacom DMA, so we don't need to take them into account.
-	//       Otherwise, we need to modify codes for them.
+	/* Note: So far RTSHead dosen't appear in ATIM & Beacom DMA, so we don't need to take them into account.
+	       Otherwise, we need to modify codes for them. */
 	if (byPktType == PK_TYPE_11GB || byPktType == PK_TYPE_11GA) {
 		if (byFBOption == AUTO_FB_NONE) {
 			struct vnt_rts_g *buf = pvRTS;
@@ -748,7 +748,7 @@ s_vFillRTSHead(
 
 			ether_addr_copy(buf->data.ra, hdr->addr1);
 			ether_addr_copy(buf->data.ta, hdr->addr2);
-		} // if (byFBOption == AUTO_FB_NONE)
+		} /* if (byFBOption == AUTO_FB_NONE) */
 	} else if (byPktType == PK_TYPE_11A) {
 		if (byFBOption == AUTO_FB_NONE) {
 			struct vnt_rts_ab *buf = pvRTS;
@@ -843,14 +843,14 @@ s_vFillCTSHead(
 		return;
 
 	if (bDisCRC) {
-		// When CRCDIS bit is on, H/W forgot to generate FCS for CTS frame,
-		// in this case we need to decrease its length by 4.
+		/* When CRCDIS bit is on, H/W forgot to generate FCS for CTS frame,
+		 in this case we need to decrease its length by 4. */
 		uCTSFrameLen -= 4;
 	}
 
 	if (byPktType == PK_TYPE_11GB || byPktType == PK_TYPE_11GA) {
 		if (byFBOption != AUTO_FB_NONE && uDMAIdx != TYPE_ATIMDMA && uDMAIdx != TYPE_BEACONDMA) {
-			// Auto Fall back
+			/* Auto Fall back */
 			struct vnt_cts_fb *buf = pvCTS;
 			/* Get SignalField, ServiceField & Length */
 			vnt_get_phy_field(pDevice, uCTSFrameLen,
@@ -888,7 +888,7 @@ s_vFillCTSHead(
 
 			ether_addr_copy(buf->data.ra,
 					pDevice->abyCurrentNetAddr);
-		} else { //if (byFBOption != AUTO_FB_NONE && uDMAIdx != TYPE_ATIMDMA && uDMAIdx != TYPE_BEACONDMA)
+		} else { /* if (byFBOption != AUTO_FB_NONE && uDMAIdx != TYPE_ATIMDMA && uDMAIdx != TYPE_BEACONDMA) */
 			struct vnt_cts *buf = pvCTS;
 			/* Get SignalField, ServiceField & Length */
 			vnt_get_phy_field(pDevice, uCTSFrameLen,
@@ -937,14 +937,14 @@ s_vFillCTSHead(
  *
  * Return Value: none
  *
- -*/
-// unsigned int cbFrameSize,//Hdr+Payload+FCS
+ -
+ * unsigned int cbFrameSize, Hdr+Payload+FCS */
 static
 void
 s_vGenerateTxParameter(
 	struct vnt_private *pDevice,
 	unsigned char byPktType,
-	void *pTxBufHead,
+	struct vnt_tx_fifo_head *tx_buffer_head,
 	void *pvRrvTime,
 	void *pvRTS,
 	void *pvCTS,
@@ -955,29 +955,26 @@ s_vGenerateTxParameter(
 	unsigned short wCurrentRate
 )
 {
-	unsigned short wFifoCtl;
+	u16 fifo_ctl = le16_to_cpu(tx_buffer_head->fifo_ctl);
 	bool bDisCRC = false;
 	unsigned char byFBOption = AUTO_FB_NONE;
 
-	PSTxBufHead pFifoHead = (PSTxBufHead)pTxBufHead;
-
-	pFifoHead->wReserved = wCurrentRate;
-	wFifoCtl = pFifoHead->wFIFOCtl;
+	tx_buffer_head->current_rate = cpu_to_le16(wCurrentRate);
 
-	if (wFifoCtl & FIFOCTL_CRCDIS)
+	if (fifo_ctl & FIFOCTL_CRCDIS)
 		bDisCRC = true;
 
-	if (wFifoCtl & FIFOCTL_AUTO_FB_0)
+	if (fifo_ctl & FIFOCTL_AUTO_FB_0)
 		byFBOption = AUTO_FB_0;
-	else if (wFifoCtl & FIFOCTL_AUTO_FB_1)
+	else if (fifo_ctl & FIFOCTL_AUTO_FB_1)
 		byFBOption = AUTO_FB_1;
 
 	if (!pvRrvTime)
 		return;
 
 	if (byPktType == PK_TYPE_11GB || byPktType == PK_TYPE_11GA) {
-		if (pvRTS != NULL) { //RTS_need
-			/* Fill RsvTime */
+		if (pvRTS != NULL) { /* RTS_need
+			 Fill RsvTime */
 			struct vnt_rrv_time_rts *buf = pvRrvTime;
 
 			buf->rts_rrv_time_aa = s_uGetRTSCTSRsvTime(pDevice, 2, byPktType, cbFrameSize, wCurrentRate);
@@ -987,40 +984,40 @@ s_vGenerateTxParameter(
 			buf->rrv_time_b = vnt_rxtx_rsvtime_le16(pDevice, PK_TYPE_11B, cbFrameSize, pDevice->byTopCCKBasicRate, bNeedACK);
 
 			s_vFillRTSHead(pDevice, byPktType, pvRTS, cbFrameSize, bNeedACK, bDisCRC, psEthHeader, wCurrentRate, byFBOption);
-		} else {//RTS_needless, PCF mode
+		} else {/* RTS_needless, PCF mode */
 			struct vnt_rrv_time_cts *buf = pvRrvTime;
 
 			buf->rrv_time_a = vnt_rxtx_rsvtime_le16(pDevice, byPktType, cbFrameSize, wCurrentRate, bNeedACK);
 			buf->rrv_time_b = vnt_rxtx_rsvtime_le16(pDevice, PK_TYPE_11B, cbFrameSize, pDevice->byTopCCKBasicRate, bNeedACK);
 			buf->cts_rrv_time_ba = s_uGetRTSCTSRsvTime(pDevice, 3, byPktType, cbFrameSize, wCurrentRate);
 
-			//Fill CTS
+			/* Fill CTS */
 			s_vFillCTSHead(pDevice, uDMAIdx, byPktType, pvCTS, cbFrameSize, bNeedACK, bDisCRC, wCurrentRate, byFBOption);
 		}
 	} else if (byPktType == PK_TYPE_11A) {
-		if (pvRTS != NULL) {//RTS_need, non PCF mode
+		if (pvRTS != NULL) {/* RTS_need, non PCF mode */
 			struct vnt_rrv_time_ab *buf = pvRrvTime;
 
 			buf->rts_rrv_time = s_uGetRTSCTSRsvTime(pDevice, 2, byPktType, cbFrameSize, wCurrentRate);
 			buf->rrv_time = vnt_rxtx_rsvtime_le16(pDevice, byPktType, cbFrameSize, wCurrentRate, bNeedACK);
 
-			//Fill RTS
+			/* Fill RTS */
 			s_vFillRTSHead(pDevice, byPktType, pvRTS, cbFrameSize, bNeedACK, bDisCRC, psEthHeader, wCurrentRate, byFBOption);
-		} else if (pvRTS == NULL) {//RTS_needless, non PCF mode
+		} else if (pvRTS == NULL) {/* RTS_needless, non PCF mode */
 			struct vnt_rrv_time_ab *buf = pvRrvTime;
 
 			buf->rrv_time = vnt_rxtx_rsvtime_le16(pDevice, PK_TYPE_11A, cbFrameSize, wCurrentRate, bNeedACK);
 		}
 	} else if (byPktType == PK_TYPE_11B) {
-		if ((pvRTS != NULL)) {//RTS_need, non PCF mode
+		if ((pvRTS != NULL)) {/* RTS_need, non PCF mode */
 			struct vnt_rrv_time_ab *buf = pvRrvTime;
 
 			buf->rts_rrv_time = s_uGetRTSCTSRsvTime(pDevice, 0, byPktType, cbFrameSize, wCurrentRate);
 			buf->rrv_time = vnt_rxtx_rsvtime_le16(pDevice, PK_TYPE_11B, cbFrameSize, wCurrentRate, bNeedACK);
 
-			//Fill RTS
+			/* Fill RTS */
 			s_vFillRTSHead(pDevice, byPktType, pvRTS, cbFrameSize, bNeedACK, bDisCRC, psEthHeader, wCurrentRate, byFBOption);
-		} else { //RTS_needless, non PCF mode
+		} else { /* RTS_needless, non PCF mode */
 			struct vnt_rrv_time_ab *buf = pvRrvTime;
 
 			buf->rrv_time = vnt_rxtx_rsvtime_le16(pDevice, PK_TYPE_11B, cbFrameSize, wCurrentRate, bNeedACK);
@@ -1058,7 +1055,7 @@ s_cbFillTxBufHead(struct vnt_private *pDevice, unsigned char byPktType,
 	void *pvRTS;
 	void *pvCTS;
 	void *pvTxDataHd;
-	unsigned short wTxBufSize;   // FFinfo size
+	unsigned short wTxBufSize;   /* FFinfo size */
 	unsigned char byFBOption = AUTO_FB_NONE;
 
 	pvRrvTime = pMICHDR = pvRTS = pvCTS = pvTxDataHd = NULL;
@@ -1076,27 +1073,27 @@ s_cbFillTxBufHead(struct vnt_private *pDevice, unsigned char byPktType,
 		cbFrameSize += info->control.hw_key->icv_len;
 
 		if (pDevice->byLocalID > REV_ID_VT3253_A1) {
-			//MAC Header should be padding 0 to DW alignment.
+			/* MAC Header should be padding 0 to DW alignment. */
 			uPadding = 4 - (ieee80211_get_hdrlen_from_skb(skb) % 4);
 			uPadding %= 4;
 		}
 	}
 
-	//
-	// Use for AUTO FALL BACK
-	//
+	/*
+	* Use for AUTO FALL BACK
+	*/
 	if (fifo_ctl & FIFOCTL_AUTO_FB_0)
 		byFBOption = AUTO_FB_0;
 	else if (fifo_ctl & FIFOCTL_AUTO_FB_1)
 		byFBOption = AUTO_FB_1;
 
-	//////////////////////////////////////////////////////
-	//Set RrvTime/RTS/CTS Buffer
+
+	/* Set RrvTime/RTS/CTS Buffer */
 	wTxBufSize = sizeof(STxBufHead);
-	if (byPktType == PK_TYPE_11GB || byPktType == PK_TYPE_11GA) {//802.11g packet
+	if (byPktType == PK_TYPE_11GB || byPktType == PK_TYPE_11GA) {/* 802.11g packet */
 
 		if (byFBOption == AUTO_FB_NONE) {
-			if (bRTS == true) {//RTS_need
+			if (bRTS == true) {/* RTS_need */
 				pvRrvTime = (void *)(pbyTxBufferAddr + wTxBufSize);
 				pMICHDR = (struct vnt_mic_hdr *)(pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_rts));
 				pvRTS = (void *)(pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_rts) + cbMICHDR);
@@ -1106,7 +1103,7 @@ s_cbFillTxBufHead(struct vnt_private *pDevice, unsigned char byPktType,
 				cbHeaderLength = wTxBufSize + sizeof(struct vnt_rrv_time_rts) +
 							cbMICHDR + sizeof(struct vnt_rts_g) +
 							sizeof(struct vnt_tx_datahead_g);
-			} else { //RTS_needless
+			} else { /* RTS_needless */
 				pvRrvTime = (void *)(pbyTxBufferAddr + wTxBufSize);
 				pMICHDR = (struct vnt_mic_hdr *) (pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_cts));
 				pvRTS = NULL;
@@ -1117,8 +1114,8 @@ s_cbFillTxBufHead(struct vnt_private *pDevice, unsigned char byPktType,
 							cbMICHDR + sizeof(struct vnt_cts) + sizeof(struct vnt_tx_datahead_g);
 			}
 		} else {
-			// Auto Fall Back
-			if (bRTS == true) {//RTS_need
+			/* Auto Fall Back */
+			if (bRTS == true) {/* RTS_need */
 				pvRrvTime = (void *)(pbyTxBufferAddr + wTxBufSize);
 				pMICHDR = (struct vnt_mic_hdr *) (pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_rts));
 				pvRTS = (void *) (pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_rts) + cbMICHDR);
@@ -1127,7 +1124,7 @@ s_cbFillTxBufHead(struct vnt_private *pDevice, unsigned char byPktType,
 					cbMICHDR + sizeof(struct vnt_rts_g_fb));
 				cbHeaderLength = wTxBufSize + sizeof(struct vnt_rrv_time_rts) +
 					cbMICHDR + sizeof(struct vnt_rts_g_fb) + sizeof(struct vnt_tx_datahead_g_fb);
-			} else { //RTS_needless
+			} else { /* RTS_needless */
 				pvRrvTime = (void *)(pbyTxBufferAddr + wTxBufSize);
 				pMICHDR = (struct vnt_mic_hdr *) (pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_cts));
 				pvRTS = NULL;
@@ -1137,8 +1134,8 @@ s_cbFillTxBufHead(struct vnt_private *pDevice, unsigned char byPktType,
 				cbHeaderLength = wTxBufSize + sizeof(struct vnt_rrv_time_cts) +
 					cbMICHDR + sizeof(struct vnt_cts_fb) + sizeof(struct vnt_tx_datahead_g_fb);
 			}
-		} // Auto Fall Back
-	} else {//802.11a/b packet
+		} /* Auto Fall Back */
+	} else {/* 802.11a/b packet */
 
 		if (byFBOption == AUTO_FB_NONE) {
 			if (bRTS == true) {
@@ -1150,7 +1147,7 @@ s_cbFillTxBufHead(struct vnt_private *pDevice, unsigned char byPktType,
 					sizeof(struct vnt_rrv_time_ab) + cbMICHDR + sizeof(struct vnt_rts_ab));
 				cbHeaderLength = wTxBufSize + sizeof(struct vnt_rrv_time_ab) +
 					cbMICHDR + sizeof(struct vnt_rts_ab) + sizeof(struct vnt_tx_datahead_ab);
-			} else { //RTS_needless, need MICHDR
+			} else { /* RTS_needless, need MICHDR */
 				pvRrvTime = (void *)(pbyTxBufferAddr + wTxBufSize);
 				pMICHDR = (struct vnt_mic_hdr *) (pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_ab));
 				pvRTS = NULL;
@@ -1160,8 +1157,8 @@ s_cbFillTxBufHead(struct vnt_private *pDevice, unsigned char byPktType,
 					cbMICHDR + sizeof(struct vnt_tx_datahead_ab);
 			}
 		} else {
-			// Auto Fall Back
-			if (bRTS == true) {//RTS_need
+			/* Auto Fall Back */
+			if (bRTS == true) { /* RTS_need */
 				pvRrvTime = (void *)(pbyTxBufferAddr + wTxBufSize);
 				pMICHDR = (struct vnt_mic_hdr *) (pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_ab));
 				pvRTS = (void *)(pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_ab) + cbMICHDR);
@@ -1170,7 +1167,7 @@ s_cbFillTxBufHead(struct vnt_private *pDevice, unsigned char byPktType,
 					sizeof(struct vnt_rrv_time_ab) + cbMICHDR + sizeof(struct vnt_rts_a_fb));
 				cbHeaderLength = wTxBufSize + sizeof(struct vnt_rrv_time_ab) +
 					cbMICHDR + sizeof(struct vnt_rts_a_fb) + sizeof(struct vnt_tx_datahead_a_fb);
-			} else { //RTS_needless
+			} else { /* RTS_needless */
 				pvRrvTime = (void *)(pbyTxBufferAddr + wTxBufSize);
 				pMICHDR = (struct vnt_mic_hdr *)(pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_ab));
 				pvRTS = NULL;
@@ -1179,7 +1176,7 @@ s_cbFillTxBufHead(struct vnt_private *pDevice, unsigned char byPktType,
 				cbHeaderLength = wTxBufSize + sizeof(struct vnt_rrv_time_ab) +
 					cbMICHDR + sizeof(struct vnt_tx_datahead_a_fb);
 			}
-		} // Auto Fall Back
+		} /* Auto Fall Back */
 	}
 
 	td_info->mic_hdr = pMICHDR;
@@ -1308,10 +1305,18 @@ int vnt_generate_fifo_header(struct vnt_private *priv, u32 dma_idx,
 			    priv->hw->conf.chandef.chan->hw_value);
 	}
 
-	if (current_rate > RATE_11M)
-		pkt_type = (u8)priv->byPacketType;
-	else
+	if (current_rate > RATE_11M) {
+		if (info->band == IEEE80211_BAND_5GHZ) {
+			pkt_type = PK_TYPE_11A;
+		} else {
+			if (tx_rate->flags & IEEE80211_TX_RC_USE_CTS_PROTECT)
+				pkt_type = PK_TYPE_11GB;
+			else
+				pkt_type = PK_TYPE_11GA;
+		}
+	} else {
 		pkt_type = PK_TYPE_11B;
+	}
 
 	/*Set fifo controls */
 	if (pkt_type == PK_TYPE_11A)
@@ -1505,8 +1510,6 @@ int vnt_beacon_make(struct vnt_private *priv, struct ieee80211_vif *vif)
 int vnt_beacon_enable(struct vnt_private *priv, struct ieee80211_vif *vif,
 		      struct ieee80211_bss_conf *conf)
 {
-	int ret;
-
 	VNSvOutPortB(priv->PortOffset + MAC_REG_TFTCTL, TFTCTL_TSFCNTRST);
 
 	VNSvOutPortB(priv->PortOffset + MAC_REG_TFTCTL, TFTCTL_TSFCNTREN);
@@ -1515,7 +1518,5 @@ int vnt_beacon_enable(struct vnt_private *priv, struct ieee80211_vif *vif,
 
 	CARDbSetBeaconPeriod(priv, conf->beacon_int);
 
-	ret = vnt_beacon_make(priv, vif);
-
-	return ret;
+	return vnt_beacon_make(priv, vif);
 }
diff --git a/drivers/staging/vt6655/srom.h b/drivers/staging/vt6655/srom.h
index 7d3e3ef..531bf00 100644
--- a/drivers/staging/vt6655/srom.h
+++ b/drivers/staging/vt6655/srom.h
@@ -24,7 +24,6 @@
  * Author: Jerry Chen
  *
  * Date: Jan 29, 2003
- *
  */
 
 #ifndef __SROM_H__
@@ -34,56 +33,50 @@
 
 #define EEP_MAX_CONTEXT_SIZE    256
 
-#define CB_EEPROM_READBYTE_WAIT 900     //us
+#define CB_EEPROM_READBYTE_WAIT 900     /* us */
 
 #define W_MAX_I2CRETRY          0x0fff
 
-//
-// Contents in the EEPROM
-//
-#define EEP_OFS_PAR         0x00        // physical address
+/* Contents in the EEPROM */
+#define EEP_OFS_PAR         0x00        /* physical address */
 #define EEP_OFS_ANTENNA     0x16
 #define EEP_OFS_RADIOCTL    0x17
-#define EEP_OFS_RFTYPE      0x1B        // for select RF
-#define EEP_OFS_MINCHANNEL  0x1C        // Min Channel #
-#define EEP_OFS_MAXCHANNEL  0x1D        // Max Channel #
-#define EEP_OFS_SIGNATURE   0x1E        //
-#define EEP_OFS_ZONETYPE    0x1F        //
-#define EEP_OFS_RFTABLE     0x20        // RF POWER TABLE
+#define EEP_OFS_RFTYPE      0x1B        /* for select RF */
+#define EEP_OFS_MINCHANNEL  0x1C        /* Min Channel # */
+#define EEP_OFS_MAXCHANNEL  0x1D        /* Max Channel # */
+#define EEP_OFS_SIGNATURE   0x1E
+#define EEP_OFS_ZONETYPE    0x1F
+#define EEP_OFS_RFTABLE     0x20        /* RF POWER TABLE */
 #define EEP_OFS_PWR_CCK     0x20
 #define EEP_OFS_SETPT_CCK   0x21
 #define EEP_OFS_PWR_OFDMG   0x23
 #define EEP_OFS_SETPT_OFDMG 0x24
-#define EEP_OFS_PWR_FORMULA_OST  0x26   //
+#define EEP_OFS_PWR_FORMULA_OST  0x26
 #define EEP_OFS_MAJOR_VER 0x2E
 #define EEP_OFS_MINOR_VER 0x2F
 #define EEP_OFS_CCK_PWR_TBL     0x30
 #define EEP_OFS_CCK_PWR_dBm     0x3F
 #define EEP_OFS_OFDM_PWR_TBL    0x40
 #define EEP_OFS_OFDM_PWR_dBm    0x4F
-//{{ RobertYu: 20041124
+/*{{ RobertYu: 20041124 */
 #define EEP_OFS_SETPT_OFDMA         0x4E
 #define EEP_OFS_OFDMA_PWR_TBL       0x50
-//}}
+/*}}*/
 #define EEP_OFS_OFDMA_PWR_dBm       0xD2
 
-//----------need to remove --------------------
-#define EEP_OFS_BBTAB_LEN   0x70        // BB Table Length
-#define EEP_OFS_BBTAB_ADR   0x71        // BB Table Offset
-#define EEP_OFS_CHECKSUM    0xFF        // reserved area for baseband 28h ~ 78h
+/*----------need to remove --------------------*/
+#define EEP_OFS_BBTAB_LEN   0x70        /* BB Table Length */
+#define EEP_OFS_BBTAB_ADR   0x71        /* BB Table Offset */
+#define EEP_OFS_CHECKSUM    0xFF        /* reserved area for baseband 28h~78h */
 
-#define EEP_I2C_DEV_ID      0x50        // EEPROM device address on the I2C bus
+#define EEP_I2C_DEV_ID      0x50        /* EEPROM device address on I2C bus */
 
-//
-// Bits in EEP_OFS_ANTENNA
-//
+/* Bits in EEP_OFS_ANTENNA */
 #define EEP_ANTENNA_MAIN    0x01
 #define EEP_ANTENNA_AUX     0x02
 #define EEP_ANTINV          0x04
 
-//
-// Bits in EEP_OFS_RADIOCTL
-//
+/* Bits in EEP_OFS_RADIOCTL */
 #define EEP_RADIOCTL_ENABLE 0x80
 #define EEP_RADIOCTL_INV    0x01
 
@@ -97,10 +90,12 @@
 
 /*---------------------  Export Functions  --------------------------*/
 
-unsigned char SROMbyReadEmbedded(void __iomem *dwIoBase, unsigned char byContntOffset);
+unsigned char SROMbyReadEmbedded(void __iomem *dwIoBase,
+				 unsigned char byContntOffset);
 
 void SROMvReadAllContents(void __iomem *dwIoBase, unsigned char *pbyEepromRegs);
 
-void SROMvReadEtherAddress(void __iomem *dwIoBase, unsigned char *pbyEtherAddress);
+void SROMvReadEtherAddress(void __iomem *dwIoBase,
+			   unsigned char *pbyEtherAddress);
 
-#endif // __EEPROM_H__
+#endif /* __EEPROM_H__*/
diff --git a/drivers/staging/vt6655/tmacro.h b/drivers/staging/vt6655/tmacro.h
index 607b78f..597efef 100644
--- a/drivers/staging/vt6655/tmacro.h
+++ b/drivers/staging/vt6655/tmacro.h
@@ -55,4 +55,4 @@
 #define MAKEDWORD(lw, hw)   ((unsigned long)(((unsigned short)(lw)) | (((unsigned long)((unsigned short)(hw))) << 16)))
 #endif
 
-#endif // __TMACRO_H__
+#endif /* __TMACRO_H__ */
diff --git a/drivers/staging/vt6656/firmware.c b/drivers/staging/vt6656/firmware.c
index a177645..d440f28 100644
--- a/drivers/staging/vt6656/firmware.c
+++ b/drivers/staging/vt6656/firmware.c
@@ -61,7 +61,7 @@ int vnt_download_firmware(struct vnt_private *priv)
 
 	buffer = kmalloc(FIRMWARE_CHUNK_SIZE, GFP_KERNEL);
 	if (!buffer)
-		goto out;
+		goto free_fw;
 
 	for (ii = 0; ii < fw->size; ii += FIRMWARE_CHUNK_SIZE) {
 		length = min_t(int, fw->size - ii, FIRMWARE_CHUNK_SIZE);
diff --git a/drivers/staging/vt6656/mac.c b/drivers/staging/vt6656/mac.c
index bb37e33..5dfac05 100644
--- a/drivers/staging/vt6656/mac.c
+++ b/drivers/staging/vt6656/mac.c
@@ -30,6 +30,8 @@
  * Revision History:
  */
 
+#include <linux/etherdevice.h>
+
 #include "desc.h"
 #include "mac.h"
 #include "usbpipe.h"
@@ -126,7 +128,7 @@ void vnt_mac_set_keyentry(struct vnt_private *priv, u16 key_ctl, u32 entry_idx,
 	offset += (entry_idx * MISCFIFO_KEYENTRYSIZE);
 
 	set_key.u.write.key_ctl = cpu_to_le16(key_ctl);
-	memcpy(set_key.u.write.addr, addr, ETH_ALEN);
+	ether_addr_copy(set_key.u.write.addr, addr);
 
 	/* swap over swap[0] and swap[1] to get correct write order */
 	swap(set_key.u.swap[0], set_key.u.swap[1]);
diff --git a/drivers/staging/vt6656/main_usb.c b/drivers/staging/vt6656/main_usb.c
index 71adc1f..ab3ab84 100644
--- a/drivers/staging/vt6656/main_usb.c
+++ b/drivers/staging/vt6656/main_usb.c
@@ -963,6 +963,7 @@ vt6656_probe(struct usb_interface *intf, const struct usb_device_id *id)
 	hw = ieee80211_alloc_hw(sizeof(struct vnt_private), &vnt_mac_ops);
 	if (!hw) {
 		dev_err(&udev->dev, "could not register ieee80211_hw\n");
+		rc = -ENOMEM;
 		goto err_nomem;
 	}
 
diff --git a/drivers/staging/vt6656/rf.c b/drivers/staging/vt6656/rf.c
index c42cde5..c4286cc 100644
--- a/drivers/staging/vt6656/rf.c
+++ b/drivers/staging/vt6656/rf.c
@@ -640,6 +640,7 @@ int vnt_rf_setpower(struct vnt_private *priv, u32 rate, u32 channel)
 		break;
 	case RATE_6M:
 	case RATE_9M:
+	case RATE_12M:
 	case RATE_18M:
 	case RATE_24M:
 	case RATE_36M:
diff --git a/drivers/staging/vt6656/rxtx.c b/drivers/staging/vt6656/rxtx.c
index 33baf26..f6c2cf8 100644
--- a/drivers/staging/vt6656/rxtx.c
+++ b/drivers/staging/vt6656/rxtx.c
@@ -755,9 +755,9 @@ static void vnt_fill_txkey(struct vnt_usb_send_context *tx_context,
 		else
 			mic_hdr->hlen = cpu_to_be16(22);
 
-		memcpy(mic_hdr->addr1, hdr->addr1, ETH_ALEN);
-		memcpy(mic_hdr->addr2, hdr->addr2, ETH_ALEN);
-		memcpy(mic_hdr->addr3, hdr->addr3, ETH_ALEN);
+		ether_addr_copy(mic_hdr->addr1, hdr->addr1);
+		ether_addr_copy(mic_hdr->addr2, hdr->addr2);
+		ether_addr_copy(mic_hdr->addr3, hdr->addr3);
 
 		mic_hdr->frame_control = cpu_to_le16(
 			le16_to_cpu(hdr->frame_control) & 0xc78f);
@@ -765,7 +765,7 @@ static void vnt_fill_txkey(struct vnt_usb_send_context *tx_context,
 				le16_to_cpu(hdr->seq_ctrl) & 0xf);
 
 		if (ieee80211_has_a4(hdr->frame_control))
-			memcpy(mic_hdr->addr4, hdr->addr4, ETH_ALEN);
+			ether_addr_copy(mic_hdr->addr4, hdr->addr4);
 
 
 		memcpy(key_buffer, tx_key->key, WLAN_KEY_LEN_CCMP);
diff --git a/drivers/staging/wlan-ng/hfa384x.h b/drivers/staging/wlan-ng/hfa384x.h
index 8f20910..8dfe438 100644
--- a/drivers/staging/wlan-ng/hfa384x.h
+++ b/drivers/staging/wlan-ng/hfa384x.h
@@ -1204,19 +1204,19 @@ typedef struct hfa484x_metacmd {
 #define WLAN_ACCESS_DENY	3   /* Do not authenticate "denied" stations. */
 
 /* XXX These are going away ASAP */
-typedef struct prism2sta_authlist {
+struct prism2sta_authlist {
 	unsigned int cnt;
 	u8 addr[WLAN_AUTH_MAX][ETH_ALEN];
 	u8 assoc[WLAN_AUTH_MAX];
-} prism2sta_authlist_t;
+};
 
-typedef struct prism2sta_accesslist {
+struct prism2sta_accesslist {
 	unsigned int modify;
 	unsigned int cnt;
 	u8 addr[WLAN_ACCESS_MAX][ETH_ALEN];
 	unsigned int cnt1;
 	u8 addr1[WLAN_ACCESS_MAX][ETH_ALEN];
-} prism2sta_accesslist_t;
+};
 
 typedef struct hfa384x {
 	/* USB support data */
@@ -1348,10 +1348,10 @@ typedef struct hfa384x {
 
 	hfa384x_InfFrame_t *scanresults;
 
-	prism2sta_authlist_t authlist;	/* Authenticated station list. */
-	unsigned int accessmode;	/* Access mode. */
-	prism2sta_accesslist_t allow;	/* Allowed station list. */
-	prism2sta_accesslist_t deny;	/* Denied station list. */
+	struct prism2sta_authlist authlist;	/* Authenticated station list. */
+	unsigned int accessmode;		/* Access mode. */
+	struct prism2sta_accesslist allow;	/* Allowed station list. */
+	struct prism2sta_accesslist deny;	/* Denied station list. */
 
 } hfa384x_t;
 
@@ -1413,7 +1413,8 @@ int hfa384x_drvr_start(hfa384x_t *hw);
 int hfa384x_drvr_stop(hfa384x_t *hw);
 int
 hfa384x_drvr_txframe(hfa384x_t *hw, struct sk_buff *skb,
-		     union p80211_hdr *p80211_hdr, struct p80211_metawep *p80211_wep);
+		     union p80211_hdr *p80211_hdr,
+		     struct p80211_metawep *p80211_wep);
 void hfa384x_tx_timeout(wlandevice_t *wlandev);
 
 int hfa384x_cmd_initialize(hfa384x_t *hw);
diff --git a/drivers/staging/wlan-ng/hfa384x_usb.c b/drivers/staging/wlan-ng/hfa384x_usb.c
index 28cd1c4..e109a7f 100644
--- a/drivers/staging/wlan-ng/hfa384x_usb.c
+++ b/drivers/staging/wlan-ng/hfa384x_usb.c
@@ -557,17 +557,13 @@ void hfa384x_create(hfa384x_t *hw, struct usb_device *usb)
 	INIT_WORK(&hw->link_bh, prism2sta_processing_defer);
 	INIT_WORK(&hw->usb_work, hfa384x_usb_defer);
 
-	init_timer(&hw->throttle);
-	hw->throttle.function = hfa384x_usb_throttlefn;
-	hw->throttle.data = (unsigned long)hw;
+	setup_timer(&hw->throttle, hfa384x_usb_throttlefn, (unsigned long)hw);
 
-	init_timer(&hw->resptimer);
-	hw->resptimer.function = hfa384x_usbctlx_resptimerfn;
-	hw->resptimer.data = (unsigned long)hw;
+	setup_timer(&hw->resptimer, hfa384x_usbctlx_resptimerfn,
+		    (unsigned long)hw);
 
-	init_timer(&hw->reqtimer);
-	hw->reqtimer.function = hfa384x_usbctlx_reqtimerfn;
-	hw->reqtimer.data = (unsigned long)hw;
+	setup_timer(&hw->reqtimer, hfa384x_usbctlx_reqtimerfn,
+		    (unsigned long)hw);
 
 	usb_init_urb(&hw->rx_urb);
 	usb_init_urb(&hw->tx_urb);
@@ -577,9 +573,8 @@ void hfa384x_create(hfa384x_t *hw, struct usb_device *usb)
 	hw->state = HFA384x_STATE_INIT;
 
 	INIT_WORK(&hw->commsqual_bh, prism2sta_commsqual_defer);
-	init_timer(&hw->commsqual_timer);
-	hw->commsqual_timer.data = (unsigned long)hw;
-	hw->commsqual_timer.function = prism2sta_commsqual_timer;
+	setup_timer(&hw->commsqual_timer, prism2sta_commsqual_timer,
+		    (unsigned long)hw);
 }
 
 /*----------------------------------------------------------------
@@ -624,11 +619,10 @@ static hfa384x_usbctlx_t *usbctlx_alloc(void)
 {
 	hfa384x_usbctlx_t *ctlx;
 
-	ctlx = kmalloc(sizeof(*ctlx), in_interrupt() ? GFP_ATOMIC : GFP_KERNEL);
-	if (ctlx != NULL) {
-		memset(ctlx, 0, sizeof(*ctlx));
+	ctlx = kzalloc(sizeof(*ctlx),
+		       in_interrupt() ? GFP_ATOMIC : GFP_KERNEL);
+	if (ctlx != NULL)
 		init_completion(&ctlx->done);
-	}
 
 	return ctlx;
 }
diff --git a/drivers/staging/wlan-ng/prism2mib.c b/drivers/staging/wlan-ng/prism2mib.c
index 0163e06..b4a15ef 100644
--- a/drivers/staging/wlan-ng/prism2mib.c
+++ b/drivers/staging/wlan-ng/prism2mib.c
@@ -582,8 +582,6 @@ static int prism2mib_privacyinvoked(struct mibrec *mib,
 				    struct p80211msg_dot11req_mibset *msg,
 				    void *data)
 {
-	int result;
-
 	if (wlandev->hostwep & HOSTWEP_DECRYPT) {
 		if (wlandev->hostwep & HOSTWEP_DECRYPT)
 			mib->parm2 |= HFA384x_WEPFLAGS_DISABLE_RXCRYPT;
@@ -591,9 +589,7 @@ static int prism2mib_privacyinvoked(struct mibrec *mib,
 			mib->parm2 |= HFA384x_WEPFLAGS_DISABLE_TXCRYPT;
 	}
 
-	result = prism2mib_flag(mib, isget, wlandev, hw, msg, data);
-
-	return result;
+	return prism2mib_flag(mib, isget, wlandev, hw, msg, data);
 }
 
 /*----------------------------------------------------------------
@@ -628,11 +624,8 @@ static int prism2mib_excludeunencrypted(struct mibrec *mib,
 					struct p80211msg_dot11req_mibset *msg,
 					void *data)
 {
-	int result;
-
-	result = prism2mib_flag(mib, isget, wlandev, hw, msg, data);
 
-	return result;
+	return prism2mib_flag(mib, isget, wlandev, hw, msg, data);
 }
 
 /*----------------------------------------------------------------
diff --git a/drivers/staging/wlan-ng/prism2sta.c b/drivers/staging/wlan-ng/prism2sta.c
index 10ad24a..ddb294e 100644
--- a/drivers/staging/wlan-ng/prism2sta.c
+++ b/drivers/staging/wlan-ng/prism2sta.c
@@ -51,7 +51,6 @@
 */
 
 #include <linux/module.h>
-#include <linux/moduleparam.h>
 #include <linux/kernel.h>
 #include <linux/sched.h>
 #include <linux/types.h>
@@ -60,6 +59,7 @@
 #include <linux/netdevice.h>
 #include <linux/workqueue.h>
 #include <linux/byteorder/generic.h>
+#include <linux/etherdevice.h>
 
 #include <linux/io.h>
 #include <linux/delay.h>
@@ -243,7 +243,6 @@ static int prism2sta_txframe(wlandevice_t *wlandev, struct sk_buff *skb,
 			     struct p80211_metawep *p80211_wep)
 {
 	hfa384x_t *hw = (hfa384x_t *) wlandev->priv;
-	int result;
 
 	/* If necessary, set the 802.11 WEP bit */
 	if ((wlandev->hostwep & (HOSTWEP_PRIVACYINVOKED | HOSTWEP_ENCRYPT)) ==
@@ -251,9 +250,7 @@ static int prism2sta_txframe(wlandevice_t *wlandev, struct sk_buff *skb,
 		p80211_hdr->a3.fc |= cpu_to_le16(WLAN_SET_FC_ISWEP(1));
 	}
 
-	result = hfa384x_drvr_txframe(hw, skb, p80211_hdr, p80211_wep);
-
-	return result;
+	return hfa384x_drvr_txframe(hw, skb, p80211_hdr, p80211_wep);
 }
 
 /*----------------------------------------------------------------
@@ -1548,7 +1545,7 @@ static void prism2sta_inf_authreq_defer(wlandevice_t *wlandev,
 	 ** authentication.
 	 */
 
-	memcpy(rec.address, inf->info.authreq.sta_addr, ETH_ALEN);
+	ether_addr_copy(rec.address, inf->info.authreq.sta_addr);
 	rec.status = P80211ENUM_status_unspec_failure;
 
 	/*
@@ -1661,8 +1658,8 @@ static void prism2sta_inf_authreq_defer(wlandevice_t *wlandev,
 			if (hw->authlist.cnt >= WLAN_AUTH_MAX) {
 				rec.status = P80211ENUM_status_ap_full;
 			} else {
-				memcpy(hw->authlist.addr[hw->authlist.cnt],
-				       rec.address, ETH_ALEN);
+				ether_addr_copy(hw->authlist.addr[hw->authlist.cnt],
+						rec.address);
 				hw->authlist.cnt++;
 				added = 1;
 			}
diff --git a/drivers/staging/xgifb/XGI_main_26.c b/drivers/staging/xgifb/XGI_main_26.c
index 935c714..74e8820 100644
--- a/drivers/staging/xgifb/XGI_main_26.c
+++ b/drivers/staging/xgifb/XGI_main_26.c
@@ -106,7 +106,7 @@ static int XGIfb_mode_rate_to_ddata(struct vb_device_info *XGI_Pr,
 
 	sr_data = XGI_CRT1Table[index].CR[5];
 
-	HDE = (XGI330_RefIndex[RefreshRateTableIndex].XRes >> 3);
+	HDE = XGI330_RefIndex[RefreshRateTableIndex].XRes >> 3;
 
 	cr_data = XGI_CRT1Table[index].CR[3];
 
@@ -1011,8 +1011,8 @@ static int XGIfb_do_set_var(struct fb_var_screeninfo *var, int isactive,
 			       XGIbios_mode[xgifb_info->mode_idx].mode_no);
 			return -EINVAL;
 		}
-		info->fix.line_length = ((info->var.xres_virtual
-				* info->var.bits_per_pixel) >> 6);
+		info->fix.line_length = (info->var.xres_virtual
+				* info->var.bits_per_pixel) >> 6;
 
 		xgifb_reg_set(XGISR, IND_SIS_PASSWORD, SIS_PASSWORD);
 
diff --git a/drivers/staging/xgifb/vb_setmode.c b/drivers/staging/xgifb/vb_setmode.c
index 1f6f699..a47395e 100644
--- a/drivers/staging/xgifb/vb_setmode.c
+++ b/drivers/staging/xgifb/vb_setmode.c
@@ -308,11 +308,11 @@ static void XGI_SetCRT1Timing_H(struct vb_device_info *pVBInfo,
 		data |= data1;
 		xgifb_reg_set(pVBInfo->P3d4, 0x05, data);
 		data = xgifb_reg_get(pVBInfo->P3c4, 0x0e);
-		data = data >> 5;
+		data >>= 5;
 		data = data + 3;
 		if (data > 7)
 			data = data - 7;
-		data = data << 5;
+		data <<= 5;
 		xgifb_reg_and_or(pVBInfo->P3c4, 0x0e, ~0xE0, data);
 	}
 }
@@ -347,7 +347,7 @@ static void XGI_SetCRT1Timing_V(unsigned short ModeIdIndex,
 
 	data = pVBInfo->TimingV.data[6];
 	data &= 0x80;
-	data = data >> 2;
+	data >>= 2;
 
 	i = XGI330_EModeIDTable[ModeIdIndex].Ext_ModeFlag;
 	i &= DoubleScanMode;
@@ -693,18 +693,18 @@ static void XGI_SetCRT1DE(unsigned short ModeIdIndex,
 	tempbx = XGI330_ModeResInfo[resindex].VTotal;
 
 	if (modeflag & HalfDCLK)
-		tempax = tempax >> 1;
+		tempax >>= 1;
 
 	if (modeflag & HalfDCLK)
-		tempax = tempax << 1;
+		tempax <<= 1;
 
 	temp = XGI330_RefIndex[RefreshRateTableIndex].Ext_InfoFlag;
 
 	if (temp & InterlaceMode)
-		tempbx = tempbx >> 1;
+		tempbx >>= 1;
 
 	if (modeflag & DoubleScanMode)
-		tempbx = tempbx << 1;
+		tempbx <<= 1;
 
 	tempcx = 8;
 
@@ -721,7 +721,7 @@ static void XGI_SetCRT1DE(unsigned short ModeIdIndex,
 			(unsigned short) ((tempcx & 0x0ff00) >> 10));
 	xgifb_reg_set(pVBInfo->P3d4, 0x12, (unsigned short) (tempbx & 0xff));
 	tempax = 0;
-	tempbx = tempbx >> 8;
+	tempbx >>= 8;
 
 	if (tempbx & 0x01)
 		tempax |= 0x02;
@@ -750,14 +750,14 @@ static void XGI_SetCRT1Offset(unsigned short ModeNo,
 
 	/* GetOffset */
 	temp = XGI330_EModeIDTable[ModeIdIndex].Ext_ModeInfo;
-	temp = temp >> 8;
+	temp >>= 8;
 	temp = XGI330_ScreenOffset[temp];
 
 	temp2 = XGI330_RefIndex[RefreshRateTableIndex].Ext_InfoFlag;
 	temp2 &= InterlaceMode;
 
 	if (temp2)
-		temp = temp << 1;
+		temp <<= 1;
 
 	temp2 = pVBInfo->ModeType - ModeEGA;
 
@@ -792,7 +792,7 @@ static void XGI_SetCRT1Offset(unsigned short ModeNo,
 	/* SetOffset */
 	DisplayUnit = temp;
 	temp2 = temp;
-	temp = temp >> 8; /* ah */
+	temp >>= 8; /* ah */
 	temp &= 0x0F;
 	i = xgifb_reg_get(pVBInfo->P3c4, 0x0E);
 	i &= 0xF0;
@@ -809,7 +809,7 @@ static void XGI_SetCRT1Offset(unsigned short ModeNo,
 	if (temp2)
 		DisplayUnit >>= 1;
 
-	DisplayUnit = DisplayUnit << 5;
+	DisplayUnit <<= 5;
 	ah = (DisplayUnit & 0xff00) >> 8;
 	al = DisplayUnit & 0x00ff;
 	if (al == 0)
@@ -912,7 +912,7 @@ static void XGI_SetCRT1VCLK(unsigned short ModeIdIndex,
 			index = data;
 			index &= 0xE0;
 			data &= 0x1F;
-			data = data << 1;
+			data <<= 1;
 			data += 1;
 			data |= index;
 			xgifb_reg_set(pVBInfo->P3c4, 0x2C, data);
@@ -1011,7 +1011,7 @@ static void XGI_SetCRT1ModeRegs(struct xgi_hw_device_info *HwDeviceExtension,
 	data2 = 0;
 	data2 |= 0x02;
 	data3 = pVBInfo->ModeType - ModeVGA;
-	data3 = data3 << 2;
+	data3 <<= 2;
 	data2 |= data3;
 	data &= InterlaceMode;
 
@@ -1126,7 +1126,7 @@ static void XGI_LoadDAC(struct vb_device_info *pVBInfo)
 				data2 += 0x15;
 
 			outb(data2, pVBInfo->P3c9);
-			data = data >> 2;
+			data >>= 2;
 		}
 	}
 
@@ -1185,10 +1185,10 @@ static void XGI_GetLVDSResInfo(unsigned short ModeIdIndex,
 	yres = XGI330_ModeResInfo[resindex].VTotal;
 
 	if (modeflag & HalfDCLK)
-		xres = xres << 1;
+		xres <<= 1;
 
 	if (modeflag & DoubleScanMode)
-		yres = yres << 1;
+		yres <<= 1;
 
 	if (xres == 720)
 		xres = 640;
@@ -1450,8 +1450,8 @@ static void XGI_SetLVDSRegs(unsigned short ModeIdIndex,
 
 	xgifb_reg_set(pVBInfo->Part1Port, 0x1A, tempbx & 0x07);
 
-	tempcx = tempcx >> 3;
-	tempbx = tempbx >> 3;
+	tempcx >>= 3;
+	tempbx >>= 3;
 
 	xgifb_reg_set(pVBInfo->Part1Port, 0x16,
 			(unsigned short) (tempbx & 0xff));
@@ -1473,9 +1473,9 @@ static void XGI_SetLVDSRegs(unsigned short ModeIdIndex,
 		tempcx -= tempax;
 
 	tempax = tempbx & 0x07;
-	tempax = tempax >> 5;
-	tempcx = tempcx >> 3;
-	tempbx = tempbx >> 3;
+	tempax >>= 5;
+	tempcx >>= 3;
+	tempbx >>= 3;
 
 	tempcx &= 0x1f;
 	tempax |= tempcx;
@@ -1600,7 +1600,7 @@ static void XGI_SetLVDSRegs(unsigned short ModeIdIndex,
 	temp1 = pVBInfo->VGAHDE << 16;
 
 	temp1 /= temp3;
-	temp3 = temp3 << 16;
+	temp3 <<= 16;
 	temp1 -= 1;
 
 	temp3 = (temp3 & 0xffff0000) + (temp1 & 0xffff);
@@ -1622,10 +1622,10 @@ static void XGI_SetLVDSRegs(unsigned short ModeIdIndex,
 	xgifb_reg_set(pVBInfo->Part1Port, 0x21,
 			(unsigned short) (tempbx & 0xff));
 
-	temp3 = temp3 >> 16;
+	temp3 >>= 16;
 
 	if (modeflag & HalfDCLK)
-		temp3 = temp3 >> 1;
+		temp3 >>= 1;
 
 	xgifb_reg_set(pVBInfo->Part1Port, 0x22,
 			(unsigned short) ((temp3 >> 8) & 0xff));
@@ -1909,7 +1909,7 @@ static void XGI_GetVBInfo(unsigned short ModeIdIndex,
 	tempbx = tempbx | temp;
 	temp = xgifb_reg_get(pVBInfo->P3d4, 0x31);
 	push = temp;
-	push = push << 8;
+	push <<= 8;
 	tempax = temp << 8;
 	tempbx = tempbx | tempax;
 	temp = (SetCRT2ToDualEdge | SetCRT2ToYPbPr525750 | XGI_SetCRT2ToLCDA
@@ -2107,7 +2107,7 @@ static unsigned char XGI_GetLCDInfo(unsigned short ModeIdIndex,
 			if (pVBInfo->VBInfo & XGI_SetCRT2ToLCDA)
 				tempax &= 0x0F;
 			else
-				tempax = tempax >> 4;
+				tempax >>= 4;
 
 			if ((resinfo == 6) || (resinfo == 9)) {
 				if (tempax >= 3)
@@ -2182,7 +2182,7 @@ static unsigned char XG21GPIODataTransfer(unsigned char ujDate)
 	unsigned char i = 0;
 
 	for (i = 0; i < 8; i++) {
-		ujRet = ujRet << 1;
+		ujRet <<= 1;
 		ujRet |= (ujDate >> i) & 1;
 	}
 
@@ -2494,7 +2494,7 @@ static void XGI_GetRAMDAC2DATA(unsigned short ModeIdIndex,
 	tempcx = (unsigned short)
 			XGI_CRT1Table[CRT1Index].CR[14] << 8;
 	tempcx &= 0x0100;
-	tempcx = tempcx << 2;
+	tempcx <<= 2;
 	tempbx |= tempcx;
 	temp1 = (unsigned short) XGI_CRT1Table[CRT1Index].CR[9];
 
@@ -2745,7 +2745,7 @@ static unsigned short XGI_GetOffset(unsigned short ModeNo,
 	temp = XGI330_ScreenOffset[index];
 
 	if (infoflag & InterlaceMode)
-		temp = temp << 1;
+		temp <<= 1;
 
 	colordepth = XGI_GetColorDepth(ModeIdIndex);
 
@@ -2754,7 +2754,7 @@ static unsigned short XGI_GetOffset(unsigned short ModeNo,
 		colordepth = ColorDepth[temp];
 		temp = 0x6B;
 		if (infoflag & InterlaceMode)
-			temp = temp << 1;
+			temp <<= 1;
 	}
 	return temp * colordepth;
 }
@@ -2826,7 +2826,7 @@ static void XGI_SetGroup1(unsigned short ModeIdIndex,
 		xgifb_reg_set(pVBInfo->Part1Port, 0x0A, temp);
 		tempcx = ((pVBInfo->VGAHT - pVBInfo->VGAHDE) / 2) >> 2;
 		pushbx = pVBInfo->VGAHDE / 2 + 16;
-		tempcx = tempcx >> 1;
+		tempcx >>= 1;
 		tempbx = pushbx + tempcx; /* bx BTVGA@HRS 0x0B,0x0C */
 		tempcx += tempbx;
 
@@ -2861,7 +2861,7 @@ static void XGI_SetGroup1(unsigned short ModeIdIndex,
 		xgifb_reg_set(pVBInfo->Part1Port, 0x0A, temp);
 		tempcx = (pVBInfo->VGAHT - pVBInfo->VGAHDE) >> 2; /* cx */
 		pushbx = pVBInfo->VGAHDE + 16;
-		tempcx = tempcx >> 1;
+		tempcx >>= 1;
 		tempbx = pushbx + tempcx; /* bx BTVGA@HRS 0x0B,0x0C */
 		tempcx += tempbx;
 
@@ -2980,7 +2980,7 @@ static void XGI_SetLockRegs(unsigned short ModeNo, unsigned short ModeIdIndex,
 	tempax = pVBInfo->VGAHDE; /* 0x04 Horizontal Display End */
 
 	if (modeflag & HalfDCLK)
-		tempax = tempax >> 1;
+		tempax >>= 1;
 
 	tempax = (tempax / tempcx) - 1;
 	tempbx |= ((tempax & 0x00FF) << 8);
@@ -3015,7 +3015,7 @@ static void XGI_SetLockRegs(unsigned short ModeNo, unsigned short ModeIdIndex,
 		tempax = pVBInfo->VGAHT;
 
 	if (modeflag & HalfDCLK)
-		tempax = tempax >> 1;
+		tempax >>= 1;
 
 	tempax = (tempax / tempcx) - 5;
 	tempcx = tempax; /* 20030401 0x07 horizontal Retrace Start */
@@ -3142,11 +3142,11 @@ static void XGI_SetLockRegs(unsigned short ModeNo, unsigned short ModeIdIndex,
 
 	tempax = push1;
 	tempax -= tempbx; /* 0x0C Vertical Retrace Start */
-	tempax = tempax >> 2;
+	tempax >>= 2;
 	push1 = tempax; /* push ax */
 
 	if (resinfo != 0x09) {
-		tempax = tempax << 1;
+		tempax <<= 1;
 		tempbx += tempax;
 	}
 
@@ -3179,7 +3179,7 @@ static void XGI_SetLockRegs(unsigned short ModeNo, unsigned short ModeIdIndex,
 		}
 	}
 	tempax = push1;
-	tempax = tempax >> 2;
+	tempax >>= 2;
 	tempax++;
 	tempax += tempbx;
 	push1 = tempax; /* push ax */
@@ -3332,7 +3332,7 @@ static void XGI_SetGroup2(unsigned short ModeNo, unsigned short ModeIdIndex,
 
 	if (pVBInfo->VDE <= tempax) {
 		tempax -= pVBInfo->VDE;
-		tempax = tempax >> 2;
+		tempax >>= 2;
 		tempax = (tempax & 0x00FF) | ((tempax & 0x00FF) << 8);
 		push1 = tempax;
 		temp = (tempax & 0xFF00) >> 8;
@@ -3377,7 +3377,7 @@ static void XGI_SetGroup2(unsigned short ModeNo, unsigned short ModeIdIndex,
 	tempcx = pVBInfo->HT;
 
 	if (XGI_IsLCDDualLink(pVBInfo))
-		tempcx = tempcx >> 1;
+		tempcx >>= 1;
 
 	tempcx -= 2;
 	temp = tempcx & 0x00FF;
@@ -3394,7 +3394,7 @@ static void XGI_SetGroup2(unsigned short ModeNo, unsigned short ModeIdIndex,
 		tempcx -= 4;
 
 	temp = tempcx & 0x00FF;
-	temp = temp << 4;
+	temp <<= 4;
 	xgifb_reg_and_or(pVBInfo->Part2Port, 0x22, 0x0F, temp);
 
 	tempbx = TimingPoint[j] | ((TimingPoint[j + 1]) << 8);
@@ -3403,7 +3403,7 @@ static void XGI_SetGroup2(unsigned short ModeNo, unsigned short ModeIdIndex,
 	temp = tempbx & 0x00FF;
 	xgifb_reg_set(pVBInfo->Part2Port, 0x24, temp);
 	temp = (tempbx & 0xFF00) >> 8;
-	temp = temp << 4;
+	temp <<= 4;
 	xgifb_reg_and_or(pVBInfo->Part2Port, 0x25, 0x0F, temp);
 
 	tempbx = push2;
@@ -3428,7 +3428,7 @@ static void XGI_SetGroup2(unsigned short ModeNo, unsigned short ModeIdIndex,
 		tempcx -= 4;
 
 	temp = tempcx & 0xFF;
-	temp = temp << 4;
+	temp <<= 4;
 	xgifb_reg_and_or(pVBInfo->Part2Port, 0x2A, 0x0F, temp);
 
 	tempcx = push1; /* pop cx */
@@ -3436,7 +3436,7 @@ static void XGI_SetGroup2(unsigned short ModeNo, unsigned short ModeIdIndex,
 	temp = TimingPoint[j] | ((TimingPoint[j + 1]) << 8);
 	tempcx -= temp;
 	temp = tempcx & 0x00FF;
-	temp = temp << 4;
+	temp <<= 4;
 	xgifb_reg_and_or(pVBInfo->Part2Port, 0x2D, 0x0F, temp);
 
 	tempcx -= 11;
@@ -3462,9 +3462,9 @@ static void XGI_SetGroup2(unsigned short ModeNo, unsigned short ModeIdIndex,
 		    (VB_SIS301LV | VB_SIS302LV | VB_XGI301C)) {
 			if (!(pVBInfo->TVInfo &
 			    (TVSetYPbPr525p | TVSetYPbPr750p)))
-				tempbx = tempbx >> 1;
+				tempbx >>= 1;
 		} else
-			tempbx = tempbx >> 1;
+			tempbx >>= 1;
 	}
 
 	tempbx -= 2;
@@ -3514,7 +3514,7 @@ static void XGI_SetGroup2(unsigned short ModeNo, unsigned short ModeIdIndex,
 		if (pVBInfo->VBInfo & SetCRT2ToTV) {
 			if (!(pVBInfo->TVInfo & (TVSetYPbPr525p
 					| TVSetYPbPr750p)))
-				tempbx = tempbx >> 1;
+				tempbx >>= 1;
 		}
 
 		if (pVBInfo->VBType & (VB_SIS302LV | VB_XGI301C)) {
@@ -3627,7 +3627,7 @@ static void XGI_SetGroup2(unsigned short ModeNo, unsigned short ModeIdIndex,
 	xgifb_reg_set(pVBInfo->Part2Port, 0x4c, temp);
 
 	temp = ((tempcx & 0xFF00) >> 8) & 0x03;
-	temp = temp << 2;
+	temp <<= 2;
 	temp |= ((tempbx & 0xFF00) >> 8) & 0x03;
 
 	if (pVBInfo->VBInfo & SetCRT2ToYPbPr525750) {
@@ -3691,13 +3691,13 @@ static void XGI_SetLCDRegs(unsigned short ModeIdIndex,
 	tempbx = pVBInfo->HDE; /* RHACTE=HDE-1 */
 
 	if (XGI_IsLCDDualLink(pVBInfo))
-		tempbx = tempbx >> 1;
+		tempbx >>= 1;
 
 	tempbx -= 1;
 	temp = tempbx & 0x00FF;
 	xgifb_reg_set(pVBInfo->Part2Port, 0x2C, temp);
 	temp = (tempbx & 0xFF00) >> 8;
-	temp = temp << 4;
+	temp <<= 4;
 	xgifb_reg_and_or(pVBInfo->Part2Port, 0x2B, 0x0F, temp);
 	temp = 0x01;
 
@@ -3713,7 +3713,7 @@ static void XGI_SetLCDRegs(unsigned short ModeIdIndex,
 	temp = tempcx & 0x00FF; /* RVTVT=VT-1 */
 	xgifb_reg_set(pVBInfo->Part2Port, 0x19, temp);
 	temp = (tempcx & 0xFF00) >> 8;
-	temp = temp << 5;
+	temp <<= 5;
 	xgifb_reg_set(pVBInfo->Part2Port, 0x1A, temp);
 	xgifb_reg_and_or(pVBInfo->Part2Port, 0x09, 0xF0, 0x00);
 	xgifb_reg_and_or(pVBInfo->Part2Port, 0x0A, 0xF0, 0x00);
@@ -3770,7 +3770,7 @@ static void XGI_SetLCDRegs(unsigned short ModeIdIndex,
 	tempch = ((tempcx & 0xFF00) >> 8) & 0x07;
 	tempbh = ((tempbx & 0xFF00) >> 8) & 0x07;
 	tempah = tempch;
-	tempah = tempah << 3;
+	tempah <<= 3;
 	tempah |= tempbh;
 	xgifb_reg_set(pVBInfo->Part2Port, 0x02, tempah);
 
@@ -3787,7 +3787,7 @@ static void XGI_SetLCDRegs(unsigned short ModeIdIndex,
 	temp = tempbx & 0x00FF; /* RTVACTEE=lcdvrs */
 	xgifb_reg_set(pVBInfo->Part2Port, 0x04, temp);
 	temp = (tempbx & 0xFF00) >> 8;
-	temp = temp << 4;
+	temp <<= 4;
 	temp |= (tempcx & 0x000F);
 	xgifb_reg_set(pVBInfo->Part2Port, 0x01, temp);
 	tempcx = pushbx;
@@ -3796,9 +3796,9 @@ static void XGI_SetLCDRegs(unsigned short ModeIdIndex,
 	tempbx &= 0x0FFF;
 
 	if (XGI_IsLCDDualLink(pVBInfo)) {
-		tempax = tempax >> 1;
-		tempbx = tempbx >> 1;
-		tempcx = tempcx >> 1;
+		tempax >>= 1;
+		tempbx >>= 1;
+		tempcx >>= 1;
 	}
 
 	if (pVBInfo->VBType & VB_SIS302LV)
@@ -3826,9 +3826,9 @@ static void XGI_SetLCDRegs(unsigned short ModeIdIndex,
 	tempax = pVBInfo->HT;
 	tempbx = pVBInfo->LCDHRS;
 	if (XGI_IsLCDDualLink(pVBInfo)) {
-		tempax = tempax >> 1;
-		tempbx = tempbx >> 1;
-		tempcx = tempcx >> 1;
+		tempax >>= 1;
+		tempbx >>= 1;
+		tempcx >>= 1;
 	}
 
 	if (pVBInfo->VBType & VB_SIS302LV)
@@ -3843,7 +3843,7 @@ static void XGI_SetLCDRegs(unsigned short ModeIdIndex,
 	xgifb_reg_set(pVBInfo->Part2Port, 0x1C, temp);
 
 	temp = (tempbx & 0xFF00) >> 8;
-	temp = temp << 4;
+	temp <<= 4;
 	xgifb_reg_and_or(pVBInfo->Part2Port, 0x1D, ~0x0F0, temp);
 	temp = tempcx & 0x00FF; /* RHSYEXP2S=lcdhre */
 	xgifb_reg_set(pVBInfo->Part2Port, 0x21, temp);
@@ -4044,10 +4044,10 @@ static void XGI_SetGroup4(unsigned short ModeIdIndex,
 	tempbx = pVBInfo->VGAHDE;
 
 	if (modeflag & HalfDCLK)
-		tempbx = tempbx >> 1;
+		tempbx >>= 1;
 
 	if (XGI_IsLCDDualLink(pVBInfo))
-		tempbx = tempbx >> 1;
+		tempbx >>= 1;
 
 	if (tempcx & SetCRT2ToHiVision) {
 		temp = 0;
@@ -4107,7 +4107,7 @@ static void XGI_SetGroup4(unsigned short ModeIdIndex,
 	xgifb_reg_set(pVBInfo->Part4Port, 0x1A, temp);
 	tempbx = (unsigned short) (tempebx >> 16);
 	temp = tempbx & 0x00FF;
-	temp = temp << 4;
+	temp <<= 4;
 	temp |= ((tempcx & 0xFF00) >> 8);
 	xgifb_reg_set(pVBInfo->Part4Port, 0x19, temp);
 
@@ -4118,10 +4118,10 @@ static void XGI_SetGroup4(unsigned short ModeIdIndex,
 		xgifb_reg_set(pVBInfo->Part4Port, 0x1C, temp);
 		tempax = pVBInfo->VGAHDE;
 		if (modeflag & HalfDCLK)
-			tempax = tempax >> 1;
+			tempax >>= 1;
 
 		if (XGI_IsLCDDualLink(pVBInfo))
-			tempax = tempax >> 1;
+			tempax >>= 1;
 
 		if (pVBInfo->VBInfo & SetCRT2ToLCD) {
 			if (tempax > 800)
@@ -4162,7 +4162,7 @@ static void XGI_SetGroup4(unsigned short ModeIdIndex,
 		xgifb_reg_and_or(pVBInfo->Part4Port, 0x1F, 0x00C0, temp);
 		tempbx = pVBInfo->HT;
 		if (XGI_IsLCDDualLink(pVBInfo))
-			tempbx = tempbx >> 1;
+			tempbx >>= 1;
 		tempbx = (tempbx >> 1) - 2;
 		temp = ((tempbx & 0x0700) >> 8) << 3;
 		xgifb_reg_and_or(pVBInfo->Part4Port, 0x21, 0x00C0, temp);
@@ -4622,7 +4622,7 @@ static void XGI_SetDelayComp(struct vb_device_info *pVBInfo)
 			tempbl = XGI301TVDelay;
 
 			if (pVBInfo->VBInfo & SetCRT2ToDualEdge)
-				tempbl = tempbl >> 4;
+				tempbl >>= 4;
 			if (pVBInfo->VBInfo &
 			    (SetCRT2ToLCD | XGI_SetCRT2ToLCDA)) {
 				tempbh = XGI301LCDDelay;
@@ -4785,7 +4785,7 @@ static void XGI_SetAntiFlicker(struct vb_device_info *pVBInfo)
 	tempbx = XGI_GetTVPtrIndex(pVBInfo);
 	tempbx &= 0xFE;
 	tempah = TVAntiFlickList[tempbx];
-	tempah = tempah << 4;
+	tempah <<= 4;
 
 	xgifb_reg_and_or(pVBInfo->Part2Port, 0x0A, 0x8F, tempah);
 }
@@ -4799,7 +4799,7 @@ static void XGI_SetEdgeEnhance(struct vb_device_info *pVBInfo)
 	tempbx = XGI_GetTVPtrIndex(pVBInfo);
 	tempbx &= 0xFE;
 	tempah = TVEdgeList[tempbx];
-	tempah = tempah << 5;
+	tempah <<= 5;
 
 	xgifb_reg_and_or(pVBInfo->Part2Port, 0x3A, 0x1F, tempah);
 }
@@ -5101,7 +5101,7 @@ unsigned short XGI_GetRatePtrCRT2(struct xgi_hw_device_info *pXGIHWDE,
 	unsigned short RefreshRateTableIndex, i, index, temp;
 
 	index = xgifb_reg_get(pVBInfo->P3d4, 0x33);
-	index = index >> pVBInfo->SelectCRT2Rate;
+	index >>= pVBInfo->SelectCRT2Rate;
 	index &= 0x0F;
 
 	if (pVBInfo->LCDInfo & LCDNonExpanding)
diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c
index 50bad55..77d6425 100644
--- a/drivers/target/iscsi/iscsi_target.c
+++ b/drivers/target/iscsi/iscsi_target.c
@@ -1181,7 +1181,7 @@ iscsit_handle_scsi_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
 	 * traditional iSCSI block I/O.
 	 */
 	if (iscsit_allocate_iovecs(cmd) < 0) {
-		return iscsit_add_reject_cmd(cmd,
+		return iscsit_reject_cmd(cmd,
 				ISCSI_REASON_BOOKMARK_NO_RESOURCES, buf);
 	}
 	immed_data = cmd->immediate_data;
@@ -3468,6 +3468,7 @@ iscsit_build_sendtargets_response(struct iscsi_cmd *cmd,
 						tpg_np_list) {
 				struct iscsi_np *np = tpg_np->tpg_np;
 				bool inaddr_any = iscsit_check_inaddr_any(np);
+				char *fmt_str;
 
 				if (np->np_network_transport != network_transport)
 					continue;
@@ -3495,8 +3496,12 @@ iscsit_build_sendtargets_response(struct iscsi_cmd *cmd,
 					}
 				}
 
-				len = sprintf(buf, "TargetAddress="
-					"%s:%hu,%hu",
+				if (np->np_sockaddr.ss_family == AF_INET6)
+					fmt_str = "TargetAddress=[%s]:%hu,%hu";
+				else
+					fmt_str = "TargetAddress=%s:%hu,%hu";
+
+				len = sprintf(buf, fmt_str,
 					inaddr_any ? conn->local_ip : np->np_ip,
 					np->np_port,
 					tpg->tpgt);
@@ -4256,11 +4261,17 @@ int iscsit_close_connection(
 	pr_debug("Closing iSCSI connection CID %hu on SID:"
 		" %u\n", conn->cid, sess->sid);
 	/*
-	 * Always up conn_logout_comp just in case the RX Thread is sleeping
-	 * and the logout response never got sent because the connection
-	 * failed.
+	 * Always up conn_logout_comp for the traditional TCP case just in case
+	 * the RX Thread in iscsi_target_rx_opcode() is sleeping and the logout
+	 * response never got sent because the connection failed.
+	 *
+	 * However for iser-target, isert_wait4logout() is using conn_logout_comp
+	 * to signal logout response TX interrupt completion.  Go ahead and skip
+	 * this for iser since isert_rx_opcode() does not wait on logout failure,
+	 * and to avoid iscsi_conn pointer dereference in iser-target code.
 	 */
-	complete(&conn->conn_logout_comp);
+	if (conn->conn_transport->transport_type == ISCSI_TCP)
+		complete(&conn->conn_logout_comp);
 
 	iscsi_release_thread_set(conn);
 
diff --git a/drivers/target/iscsi/iscsi_target_erl0.c b/drivers/target/iscsi/iscsi_target_erl0.c
index 1c197ba..bdd8731 100644
--- a/drivers/target/iscsi/iscsi_target_erl0.c
+++ b/drivers/target/iscsi/iscsi_target_erl0.c
@@ -22,7 +22,6 @@
 #include <target/target_core_fabric.h>
 
 #include <target/iscsi/iscsi_target_core.h>
-#include <target/iscsi/iscsi_transport.h>
 #include "iscsi_target_seq_pdu_list.h"
 #include "iscsi_target_tq.h"
 #include "iscsi_target_erl0.h"
@@ -940,8 +939,7 @@ void iscsit_take_action_for_connection_exit(struct iscsi_conn *conn)
 
 	if (conn->conn_state == TARG_CONN_STATE_IN_LOGOUT) {
 		spin_unlock_bh(&conn->state_lock);
-		if (conn->conn_transport->transport_type == ISCSI_TCP)
-			iscsit_close_connection(conn);
+		iscsit_close_connection(conn);
 		return;
 	}
 
diff --git a/drivers/target/loopback/tcm_loop.c b/drivers/target/loopback/tcm_loop.c
index 6b3c329..c36bd7c 100644
--- a/drivers/target/loopback/tcm_loop.c
+++ b/drivers/target/loopback/tcm_loop.c
@@ -953,11 +953,8 @@ static int tcm_loop_make_nexus(
 		transport_free_session(tl_nexus->se_sess);
 		goto out;
 	}
-	/*
-	 * Now, register the SAS I_T Nexus as active with the call to
-	 * transport_register_session()
-	 */
-	__transport_register_session(se_tpg, tl_nexus->se_sess->se_node_acl,
+	/* Now, register the SAS I_T Nexus as active. */
+	transport_register_session(se_tpg, tl_nexus->se_sess->se_node_acl,
 			tl_nexus->se_sess, tl_nexus);
 	tl_tpg->tl_nexus = tl_nexus;
 	pr_debug("TCM_Loop_ConfigFS: Established I_T Nexus to emulated"
diff --git a/drivers/target/target_core_device.c b/drivers/target/target_core_device.c
index 58f49ff..7faa6ae 100644
--- a/drivers/target/target_core_device.c
+++ b/drivers/target/target_core_device.c
@@ -650,6 +650,18 @@ static u32 se_dev_align_max_sectors(u32 max_sectors, u32 block_size)
 	return aligned_max_sectors;
 }
 
+bool se_dev_check_wce(struct se_device *dev)
+{
+	bool wce = false;
+
+	if (dev->transport->get_write_cache)
+		wce = dev->transport->get_write_cache(dev);
+	else if (dev->dev_attrib.emulate_write_cache > 0)
+		wce = true;
+
+	return wce;
+}
+
 int se_dev_set_max_unmap_lba_count(
 	struct se_device *dev,
 	u32 max_unmap_lba_count)
@@ -767,6 +779,16 @@ int se_dev_set_emulate_fua_write(struct se_device *dev, int flag)
 		pr_err("Illegal value %d\n", flag);
 		return -EINVAL;
 	}
+	if (flag &&
+	    dev->transport->get_write_cache) {
+		pr_warn("emulate_fua_write not supported for this device, ignoring\n");
+		return 0;
+	}
+	if (dev->export_count) {
+		pr_err("emulate_fua_write cannot be changed with active"
+		       " exports: %d\n", dev->export_count);
+		return -EINVAL;
+	}
 	dev->dev_attrib.emulate_fua_write = flag;
 	pr_debug("dev[%p]: SE Device Forced Unit Access WRITEs: %d\n",
 			dev, dev->dev_attrib.emulate_fua_write);
@@ -801,7 +823,11 @@ int se_dev_set_emulate_write_cache(struct se_device *dev, int flag)
 		pr_err("emulate_write_cache not supported for this device\n");
 		return -EINVAL;
 	}
-
+	if (dev->export_count) {
+		pr_err("emulate_write_cache cannot be changed with active"
+		       " exports: %d\n", dev->export_count);
+		return -EINVAL;
+	}
 	dev->dev_attrib.emulate_write_cache = flag;
 	pr_debug("dev[%p]: SE Device WRITE_CACHE_EMULATION flag: %d\n",
 			dev, dev->dev_attrib.emulate_write_cache);
@@ -1534,8 +1560,6 @@ int target_configure_device(struct se_device *dev)
 	ret = dev->transport->configure_device(dev);
 	if (ret)
 		goto out;
-	dev->dev_flags |= DF_CONFIGURED;
-
 	/*
 	 * XXX: there is not much point to have two different values here..
 	 */
@@ -1597,6 +1621,8 @@ int target_configure_device(struct se_device *dev)
 	list_add_tail(&dev->g_dev_node, &g_device_list);
 	mutex_unlock(&g_device_mutex);
 
+	dev->dev_flags |= DF_CONFIGURED;
+
 	return 0;
 
 out_free_alua:
diff --git a/drivers/target/target_core_pscsi.c b/drivers/target/target_core_pscsi.c
index 1045dcd..f6c954c 100644
--- a/drivers/target/target_core_pscsi.c
+++ b/drivers/target/target_core_pscsi.c
@@ -1121,7 +1121,7 @@ static u32 pscsi_get_device_type(struct se_device *dev)
 	struct pscsi_dev_virt *pdv = PSCSI_DEV(dev);
 	struct scsi_device *sd = pdv->pdv_sd;
 
-	return sd->type;
+	return (sd) ? sd->type : TYPE_NO_LUN;
 }
 
 static sector_t pscsi_get_blocks(struct se_device *dev)
diff --git a/drivers/target/target_core_sbc.c b/drivers/target/target_core_sbc.c
index 9a2f9d3..3e72974 100644
--- a/drivers/target/target_core_sbc.c
+++ b/drivers/target/target_core_sbc.c
@@ -708,8 +708,7 @@ sbc_check_dpofua(struct se_device *dev, struct se_cmd *cmd, unsigned char *cdb)
 		}
 	}
 	if (cdb[1] & 0x8) {
-		if (!dev->dev_attrib.emulate_fua_write ||
-		    !dev->dev_attrib.emulate_write_cache) {
+		if (!dev->dev_attrib.emulate_fua_write || !se_dev_check_wce(dev)) {
 			pr_err("Got CDB: 0x%02x with FUA bit set, but device"
 			       " does not advertise support for FUA write\n",
 			       cdb[0]);
diff --git a/drivers/target/target_core_spc.c b/drivers/target/target_core_spc.c
index 460e931..6c8bd6b 100644
--- a/drivers/target/target_core_spc.c
+++ b/drivers/target/target_core_spc.c
@@ -454,19 +454,6 @@ check_scsi_name:
 }
 EXPORT_SYMBOL(spc_emulate_evpd_83);
 
-static bool
-spc_check_dev_wce(struct se_device *dev)
-{
-	bool wce = false;
-
-	if (dev->transport->get_write_cache)
-		wce = dev->transport->get_write_cache(dev);
-	else if (dev->dev_attrib.emulate_write_cache > 0)
-		wce = true;
-
-	return wce;
-}
-
 /* Extended INQUIRY Data VPD Page */
 static sense_reason_t
 spc_emulate_evpd_86(struct se_cmd *cmd, unsigned char *buf)
@@ -490,7 +477,7 @@ spc_emulate_evpd_86(struct se_cmd *cmd, unsigned char *buf)
 	buf[5] = 0x07;
 
 	/* If WriteCache emulation is enabled, set V_SUP */
-	if (spc_check_dev_wce(dev))
+	if (se_dev_check_wce(dev))
 		buf[6] = 0x01;
 	/* If an LBA map is present set R_SUP */
 	spin_lock(&cmd->se_dev->t10_alua.lba_map_lock);
@@ -897,7 +884,7 @@ static int spc_modesense_caching(struct se_cmd *cmd, u8 pc, u8 *p)
 	if (pc == 1)
 		goto out;
 
-	if (spc_check_dev_wce(dev))
+	if (se_dev_check_wce(dev))
 		p[2] = 0x04; /* Write Cache Enable */
 	p[12] = 0x20; /* Disabled Read Ahead */
 
@@ -1009,7 +996,7 @@ static sense_reason_t spc_emulate_modesense(struct se_cmd *cmd)
 	     (cmd->se_deve->lun_flags & TRANSPORT_LUNFLAGS_READ_ONLY)))
 		spc_modesense_write_protect(&buf[length], type);
 
-	if ((spc_check_dev_wce(dev)) &&
+	if ((se_dev_check_wce(dev)) &&
 	    (dev->dev_attrib.emulate_fua_write > 0))
 		spc_modesense_dpofua(&buf[length], type);
 
diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c
index 0adc0f6..ac3cbab 100644
--- a/drivers/target/target_core_transport.c
+++ b/drivers/target/target_core_transport.c
@@ -2389,6 +2389,10 @@ int target_get_sess_cmd(struct se_session *se_sess, struct se_cmd *se_cmd,
 	list_add_tail(&se_cmd->se_cmd_list, &se_sess->sess_cmd_list);
 out:
 	spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags);
+
+	if (ret && ack_kref)
+		target_put_sess_cmd(se_sess, se_cmd);
+
 	return ret;
 }
 EXPORT_SYMBOL(target_get_sess_cmd);
diff --git a/drivers/target/tcm_fc/tfc_io.c b/drivers/target/tcm_fc/tfc_io.c
index 97b486c..583e755 100644
--- a/drivers/target/tcm_fc/tfc_io.c
+++ b/drivers/target/tcm_fc/tfc_io.c
@@ -359,7 +359,7 @@ void ft_invl_hw_context(struct ft_cmd *cmd)
 		ep = fc_seq_exch(seq);
 		if (ep) {
 			lport = ep->lp;
-			if (lport && (ep->xid <= lport->lro_xid))
+			if (lport && (ep->xid <= lport->lro_xid)) {
 				/*
 				 * "ddp_done" trigger invalidation of HW
 				 * specific DDP context
@@ -374,6 +374,7 @@ void ft_invl_hw_context(struct ft_cmd *cmd)
 				 * identified using ep->xid)
 				 */
 				cmd->was_ddp_setup = 0;
+			}
 		}
 	}
 }
diff --git a/drivers/thermal/int340x_thermal/int3400_thermal.c b/drivers/thermal/int340x_thermal/int3400_thermal.c
index 25d244c..031018e 100644
--- a/drivers/thermal/int340x_thermal/int3400_thermal.c
+++ b/drivers/thermal/int340x_thermal/int3400_thermal.c
@@ -262,13 +262,12 @@ static int int3400_thermal_probe(struct platform_device *pdev)
 	result = acpi_parse_art(priv->adev->handle, &priv->art_count,
 				&priv->arts, true);
 	if (result)
-		goto free_priv;
-
+		dev_dbg(&pdev->dev, "_ART table parsing error\n");
 
 	result = acpi_parse_trt(priv->adev->handle, &priv->trt_count,
 				&priv->trts, true);
 	if (result)
-		goto free_art;
+		dev_dbg(&pdev->dev, "_TRT table parsing error\n");
 
 	platform_set_drvdata(pdev, priv);
 
@@ -281,7 +280,7 @@ static int int3400_thermal_probe(struct platform_device *pdev)
 						&int3400_thermal_params, 0, 0);
 	if (IS_ERR(priv->thermal)) {
 		result = PTR_ERR(priv->thermal);
-		goto free_trt;
+		goto free_art_trt;
 	}
 
 	priv->rel_misc_dev_res = acpi_thermal_rel_misc_device_add(
@@ -295,9 +294,8 @@ static int int3400_thermal_probe(struct platform_device *pdev)
 
 free_zone:
 	thermal_zone_device_unregister(priv->thermal);
-free_trt:
+free_art_trt:
 	kfree(priv->trts);
-free_art:
 	kfree(priv->arts);
 free_priv:
 	kfree(priv);
diff --git a/drivers/thermal/int340x_thermal/int340x_thermal_zone.c b/drivers/thermal/int340x_thermal/int340x_thermal_zone.c
index f88b088..1e25133 100644
--- a/drivers/thermal/int340x_thermal/int340x_thermal_zone.c
+++ b/drivers/thermal/int340x_thermal/int340x_thermal_zone.c
@@ -208,7 +208,7 @@ struct int34x_thermal_zone *int340x_thermal_zone_add(struct acpi_device *adev,
 				trip_cnt, GFP_KERNEL);
 		if (!int34x_thermal_zone->aux_trips) {
 			ret = -ENOMEM;
-			goto free_mem;
+			goto err_trip_alloc;
 		}
 		trip_mask = BIT(trip_cnt) - 1;
 		int34x_thermal_zone->aux_trip_nr = trip_cnt;
@@ -248,14 +248,15 @@ struct int34x_thermal_zone *int340x_thermal_zone_add(struct acpi_device *adev,
 						0, 0);
 	if (IS_ERR(int34x_thermal_zone->zone)) {
 		ret = PTR_ERR(int34x_thermal_zone->zone);
-		goto free_lpat;
+		goto err_thermal_zone;
 	}
 
 	return int34x_thermal_zone;
 
-free_lpat:
+err_thermal_zone:
 	acpi_lpat_free_conversion_table(int34x_thermal_zone->lpat_table);
-free_mem:
+	kfree(int34x_thermal_zone->aux_trips);
+err_trip_alloc:
 	kfree(int34x_thermal_zone);
 	return ERR_PTR(ret);
 }
@@ -266,6 +267,7 @@ void int340x_thermal_zone_remove(struct int34x_thermal_zone
 {
 	thermal_zone_device_unregister(int34x_thermal_zone->zone);
 	acpi_lpat_free_conversion_table(int34x_thermal_zone->lpat_table);
+	kfree(int34x_thermal_zone->aux_trips);
 	kfree(int34x_thermal_zone);
 }
 EXPORT_SYMBOL_GPL(int340x_thermal_zone_remove);
diff --git a/drivers/thermal/intel_powerclamp.c b/drivers/thermal/intel_powerclamp.c
index 6ceebd6..12623bc 100644
--- a/drivers/thermal/intel_powerclamp.c
+++ b/drivers/thermal/intel_powerclamp.c
@@ -688,6 +688,7 @@ static const struct x86_cpu_id intel_powerclamp_ids[] = {
 	{ X86_VENDOR_INTEL, 6, 0x45},
 	{ X86_VENDOR_INTEL, 6, 0x46},
 	{ X86_VENDOR_INTEL, 6, 0x4c},
+	{ X86_VENDOR_INTEL, 6, 0x4d},
 	{ X86_VENDOR_INTEL, 6, 0x56},
 	{}
 };
diff --git a/drivers/thermal/rcar_thermal.c b/drivers/thermal/rcar_thermal.c
index 2580a48..fe4e767 100644
--- a/drivers/thermal/rcar_thermal.c
+++ b/drivers/thermal/rcar_thermal.c
@@ -387,21 +387,9 @@ static int rcar_thermal_probe(struct platform_device *pdev)
 
 	irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
 	if (irq) {
-		int ret;
-
 		/*
 		 * platform has IRQ support.
 		 * Then, driver uses common registers
-		 */
-
-		ret = devm_request_irq(dev, irq->start, rcar_thermal_irq, 0,
-				       dev_name(dev), common);
-		if (ret) {
-			dev_err(dev, "irq request failed\n ");
-			return ret;
-		}
-
-		/*
 		 * rcar_has_irq_support() will be enabled
 		 */
 		res = platform_get_resource(pdev, IORESOURCE_MEM, mres++);
@@ -456,8 +444,16 @@ static int rcar_thermal_probe(struct platform_device *pdev)
 	}
 
 	/* enable temperature comparation */
-	if (irq)
+	if (irq) {
+		ret = devm_request_irq(dev, irq->start, rcar_thermal_irq, 0,
+				       dev_name(dev), common);
+		if (ret) {
+			dev_err(dev, "irq request failed\n ");
+			goto error_unregister;
+		}
+
 		rcar_thermal_common_write(common, ENR, enr_bits);
+	}
 
 	platform_set_drvdata(pdev, common);
 
@@ -467,9 +463,9 @@ static int rcar_thermal_probe(struct platform_device *pdev)
 
 error_unregister:
 	rcar_thermal_for_each_priv(priv, common) {
-		thermal_zone_device_unregister(priv->zone);
 		if (rcar_has_irq_support(priv))
 			rcar_thermal_irq_disable(priv);
+		thermal_zone_device_unregister(priv->zone);
 	}
 
 	pm_runtime_put(dev);
@@ -485,9 +481,9 @@ static int rcar_thermal_remove(struct platform_device *pdev)
 	struct rcar_thermal_priv *priv;
 
 	rcar_thermal_for_each_priv(priv, common) {
-		thermal_zone_device_unregister(priv->zone);
 		if (rcar_has_irq_support(priv))
 			rcar_thermal_irq_disable(priv);
+		thermal_zone_device_unregister(priv->zone);
 	}
 
 	pm_runtime_put(dev);
diff --git a/drivers/thermal/samsung/exynos_tmu.c b/drivers/thermal/samsung/exynos_tmu.c
index 933cd80..1d30b09 100644
--- a/drivers/thermal/samsung/exynos_tmu.c
+++ b/drivers/thermal/samsung/exynos_tmu.c
@@ -682,6 +682,7 @@ static void exynos7_tmu_control(struct platform_device *pdev, bool on)
 
 	if (on) {
 		con |= (1 << EXYNOS_TMU_CORE_EN_SHIFT);
+		con |= (1 << EXYNOS7_PD_DET_EN_SHIFT);
 		interrupt_en =
 			(of_thermal_is_trip_valid(tz, 7)
 			<< EXYNOS7_TMU_INTEN_RISE7_SHIFT) |
@@ -704,9 +705,9 @@ static void exynos7_tmu_control(struct platform_device *pdev, bool on)
 			interrupt_en << EXYNOS_TMU_INTEN_FALL0_SHIFT;
 	} else {
 		con &= ~(1 << EXYNOS_TMU_CORE_EN_SHIFT);
+		con &= ~(1 << EXYNOS7_PD_DET_EN_SHIFT);
 		interrupt_en = 0; /* Disable all interrupts */
 	}
-	con |= 1 << EXYNOS7_PD_DET_EN_SHIFT;
 
 	writel(interrupt_en, data->base + EXYNOS7_TMU_REG_INTEN);
 	writel(con, data->base + EXYNOS_TMU_REG_CONTROL);
@@ -918,34 +919,16 @@ static irqreturn_t exynos_tmu_irq(int irq, void *id)
 }
 
 static const struct of_device_id exynos_tmu_match[] = {
-	{
-		.compatible = "samsung,exynos3250-tmu",
-	},
-	{
-		.compatible = "samsung,exynos4210-tmu",
-	},
-	{
-		.compatible = "samsung,exynos4412-tmu",
-	},
-	{
-		.compatible = "samsung,exynos5250-tmu",
-	},
-	{
-		.compatible = "samsung,exynos5260-tmu",
-	},
-	{
-		.compatible = "samsung,exynos5420-tmu",
-	},
-	{
-		.compatible = "samsung,exynos5420-tmu-ext-triminfo",
-	},
-	{
-		.compatible = "samsung,exynos5440-tmu",
-	},
-	{
-		.compatible = "samsung,exynos7-tmu",
-	},
-	{},
+	{ .compatible = "samsung,exynos3250-tmu", },
+	{ .compatible = "samsung,exynos4210-tmu", },
+	{ .compatible = "samsung,exynos4412-tmu", },
+	{ .compatible = "samsung,exynos5250-tmu", },
+	{ .compatible = "samsung,exynos5260-tmu", },
+	{ .compatible = "samsung,exynos5420-tmu", },
+	{ .compatible = "samsung,exynos5420-tmu-ext-triminfo", },
+	{ .compatible = "samsung,exynos5440-tmu", },
+	{ .compatible = "samsung,exynos7-tmu", },
+	{ /* sentinel */ },
 };
 MODULE_DEVICE_TABLE(of, exynos_tmu_match);
 
diff --git a/drivers/thermal/st/st_thermal.c b/drivers/thermal/st/st_thermal.c
index d1ec580..76c515d 100644
--- a/drivers/thermal/st/st_thermal.c
+++ b/drivers/thermal/st/st_thermal.c
@@ -25,7 +25,7 @@
  * Function to allocate regfields which are common
  * between syscfg and memory mapped based sensors
  */
-int st_thermal_alloc_regfields(struct st_thermal_sensor *sensor)
+static int st_thermal_alloc_regfields(struct st_thermal_sensor *sensor)
 {
 	struct device *dev = sensor->dev;
 	struct regmap *regmap = sensor->regmap;
diff --git a/drivers/thermal/st/st_thermal_memmap.c b/drivers/thermal/st/st_thermal_memmap.c
index 067bfcd..fc0c9e1 100644
--- a/drivers/thermal/st/st_thermal_memmap.c
+++ b/drivers/thermal/st/st_thermal_memmap.c
@@ -157,7 +157,7 @@ static const struct st_thermal_sensor_ops st_mmap_sensor_ops = {
 };
 
 /* Compatible device data stih416 mpe thermal sensor */
-const struct st_thermal_compat_data st_416mpe_cdata = {
+static const struct st_thermal_compat_data st_416mpe_cdata = {
 	.reg_fields		= st_mmap_thermal_regfields,
 	.ops			= &st_mmap_sensor_ops,
 	.calibration_val	= 14,
@@ -166,7 +166,7 @@ const struct st_thermal_compat_data st_416mpe_cdata = {
 };
 
 /* Compatible device data stih407 thermal sensor */
-const struct st_thermal_compat_data st_407_cdata = {
+static const struct st_thermal_compat_data st_407_cdata = {
 	.reg_fields		= st_mmap_thermal_regfields,
 	.ops			= &st_mmap_sensor_ops,
 	.calibration_val	= 16,
@@ -174,19 +174,19 @@ const struct st_thermal_compat_data st_407_cdata = {
 	.crit_temp		= 120,
 };
 
-static struct of_device_id st_mmap_thermal_of_match[] = {
+static const struct of_device_id st_mmap_thermal_of_match[] = {
 	{ .compatible = "st,stih416-mpe-thermal", .data = &st_416mpe_cdata },
 	{ .compatible = "st,stih407-thermal",     .data = &st_407_cdata },
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, st_mmap_thermal_of_match);
 
-int st_mmap_probe(struct platform_device *pdev)
+static int st_mmap_probe(struct platform_device *pdev)
 {
 	return st_thermal_register(pdev,  st_mmap_thermal_of_match);
 }
 
-int st_mmap_remove(struct platform_device *pdev)
+static int st_mmap_remove(struct platform_device *pdev)
 {
 	return st_thermal_unregister(pdev);
 }
diff --git a/drivers/thermal/st/st_thermal_syscfg.c b/drivers/thermal/st/st_thermal_syscfg.c
index 26d36a2..3df5b789 100644
--- a/drivers/thermal/st/st_thermal_syscfg.c
+++ b/drivers/thermal/st/st_thermal_syscfg.c
@@ -104,7 +104,7 @@ static const struct st_thermal_sensor_ops st_syscfg_sensor_ops = {
 };
 
 /* Compatible device data for stih415 sas thermal sensor */
-const struct st_thermal_compat_data st_415sas_cdata = {
+static const struct st_thermal_compat_data st_415sas_cdata = {
 	.sys_compat		= "st,stih415-front-syscfg",
 	.reg_fields		= st_415sas_regfields,
 	.ops			= &st_syscfg_sensor_ops,
@@ -114,7 +114,7 @@ const struct st_thermal_compat_data st_415sas_cdata = {
 };
 
 /* Compatible device data for stih415 mpe thermal sensor */
-const struct st_thermal_compat_data st_415mpe_cdata = {
+static const struct st_thermal_compat_data st_415mpe_cdata = {
 	.sys_compat		= "st,stih415-system-syscfg",
 	.reg_fields		= st_415mpe_regfields,
 	.ops			= &st_syscfg_sensor_ops,
@@ -124,7 +124,7 @@ const struct st_thermal_compat_data st_415mpe_cdata = {
 };
 
 /* Compatible device data for stih416 sas thermal sensor */
-const struct st_thermal_compat_data st_416sas_cdata = {
+static const struct st_thermal_compat_data st_416sas_cdata = {
 	.sys_compat		= "st,stih416-front-syscfg",
 	.reg_fields		= st_416sas_regfields,
 	.ops			= &st_syscfg_sensor_ops,
@@ -134,7 +134,7 @@ const struct st_thermal_compat_data st_416sas_cdata = {
 };
 
 /* Compatible device data for stid127 thermal sensor */
-const struct st_thermal_compat_data st_127_cdata = {
+static const struct st_thermal_compat_data st_127_cdata = {
 	.sys_compat		= "st,stid127-cpu-syscfg",
 	.reg_fields		= st_127_regfields,
 	.ops			= &st_syscfg_sensor_ops,
@@ -143,7 +143,7 @@ const struct st_thermal_compat_data st_127_cdata = {
 	.crit_temp		= 120,
 };
 
-static struct of_device_id st_syscfg_thermal_of_match[] = {
+static const struct of_device_id st_syscfg_thermal_of_match[] = {
 	{ .compatible = "st,stih415-sas-thermal", .data = &st_415sas_cdata },
 	{ .compatible = "st,stih415-mpe-thermal", .data = &st_415mpe_cdata },
 	{ .compatible = "st,stih416-sas-thermal", .data = &st_416sas_cdata },
@@ -152,12 +152,12 @@ static struct of_device_id st_syscfg_thermal_of_match[] = {
 };
 MODULE_DEVICE_TABLE(of, st_syscfg_thermal_of_match);
 
-int st_syscfg_probe(struct platform_device *pdev)
+static int st_syscfg_probe(struct platform_device *pdev)
 {
 	return st_thermal_register(pdev, st_syscfg_thermal_of_match);
 }
 
-int st_syscfg_remove(struct platform_device *pdev)
+static int st_syscfg_remove(struct platform_device *pdev)
 {
 	return st_thermal_unregister(pdev);
 }
diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c
index 48491d1..4108db7 100644
--- a/drivers/thermal/thermal_core.c
+++ b/drivers/thermal/thermal_core.c
@@ -458,8 +458,10 @@ static void update_temperature(struct thermal_zone_device *tz)
 
 	ret = thermal_zone_get_temp(tz, &temp);
 	if (ret) {
-		dev_warn(&tz->device, "failed to read out thermal zone %d\n",
-			 tz->id);
+		if (ret != -EAGAIN)
+			dev_warn(&tz->device,
+				 "failed to read out thermal zone (%d)\n",
+				 ret);
 		return;
 	}
 
@@ -899,6 +901,22 @@ thermal_cooling_device_trip_point_show(struct device *dev,
 		return sprintf(buf, "%d\n", instance->trip);
 }
 
+static struct attribute *cooling_device_attrs[] = {
+	&dev_attr_cdev_type.attr,
+	&dev_attr_max_state.attr,
+	&dev_attr_cur_state.attr,
+	NULL,
+};
+
+static const struct attribute_group cooling_device_attr_group = {
+	.attrs = cooling_device_attrs,
+};
+
+static const struct attribute_group *cooling_device_attr_groups[] = {
+	&cooling_device_attr_group,
+	NULL,
+};
+
 /* Device management */
 
 /**
@@ -1130,6 +1148,7 @@ __thermal_cooling_device_register(struct device_node *np,
 	cdev->ops = ops;
 	cdev->updated = false;
 	cdev->device.class = &thermal_class;
+	cdev->device.groups = cooling_device_attr_groups;
 	cdev->devdata = devdata;
 	dev_set_name(&cdev->device, "cooling_device%d", cdev->id);
 	result = device_register(&cdev->device);
@@ -1139,21 +1158,6 @@ __thermal_cooling_device_register(struct device_node *np,
 		return ERR_PTR(result);
 	}
 
-	/* sys I/F */
-	if (type) {
-		result = device_create_file(&cdev->device, &dev_attr_cdev_type);
-		if (result)
-			goto unregister;
-	}
-
-	result = device_create_file(&cdev->device, &dev_attr_max_state);
-	if (result)
-		goto unregister;
-
-	result = device_create_file(&cdev->device, &dev_attr_cur_state);
-	if (result)
-		goto unregister;
-
 	/* Add 'this' new cdev to the global cdev list */
 	mutex_lock(&thermal_list_lock);
 	list_add(&cdev->node, &thermal_cdev_list);
@@ -1163,11 +1167,6 @@ __thermal_cooling_device_register(struct device_node *np,
 	bind_cdev(cdev);
 
 	return cdev;
-
-unregister:
-	release_idr(&thermal_cdev_idr, &thermal_idr_lock, cdev->id);
-	device_unregister(&cdev->device);
-	return ERR_PTR(result);
 }
 
 /**
diff --git a/drivers/thermal/ti-soc-thermal/ti-bandgap.c b/drivers/thermal/ti-soc-thermal/ti-bandgap.c
index 634b6ce..62a5d44 100644
--- a/drivers/thermal/ti-soc-thermal/ti-bandgap.c
+++ b/drivers/thermal/ti-soc-thermal/ti-bandgap.c
@@ -1402,7 +1402,7 @@ int ti_bandgap_remove(struct platform_device *pdev)
 	return 0;
 }
 
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
 static int ti_bandgap_save_ctxt(struct ti_bandgap *bgp)
 {
 	int i;
diff --git a/drivers/thermal/ti-soc-thermal/ti-thermal-common.c b/drivers/thermal/ti-soc-thermal/ti-thermal-common.c
index 3fb054a..a38c175 100644
--- a/drivers/thermal/ti-soc-thermal/ti-thermal-common.c
+++ b/drivers/thermal/ti-soc-thermal/ti-thermal-common.c
@@ -429,7 +429,7 @@ int ti_thermal_unregister_cpu_cooling(struct ti_bandgap *bgp, int id)
 
 	data = ti_bandgap_get_sensor_data(bgp, id);
 
-	if (data && data->cool_dev)
+	if (data)
 		cpufreq_cooling_unregister(data->cool_dev);
 
 	return 0;
diff --git a/drivers/tty/bfin_jtag_comm.c b/drivers/tty/bfin_jtag_comm.c
index d7b198c..ce24182 100644
--- a/drivers/tty/bfin_jtag_comm.c
+++ b/drivers/tty/bfin_jtag_comm.c
@@ -210,18 +210,6 @@ bfin_jc_chars_in_buffer(struct tty_struct *tty)
 	return circ_cnt(&bfin_jc_write_buf);
 }
 
-static void
-bfin_jc_wait_until_sent(struct tty_struct *tty, int timeout)
-{
-	unsigned long expire = jiffies + timeout;
-	while (!circ_empty(&bfin_jc_write_buf)) {
-		if (signal_pending(current))
-			break;
-		if (time_after(jiffies, expire))
-			break;
-	}
-}
-
 static const struct tty_operations bfin_jc_ops = {
 	.open            = bfin_jc_open,
 	.close           = bfin_jc_close,
@@ -230,7 +218,6 @@ static const struct tty_operations bfin_jc_ops = {
 	.flush_chars     = bfin_jc_flush_chars,
 	.write_room      = bfin_jc_write_room,
 	.chars_in_buffer = bfin_jc_chars_in_buffer,
-	.wait_until_sent = bfin_jc_wait_until_sent,
 };
 
 static int __init bfin_jc_init(void)
diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8250/8250_core.c
index e3b9570a..deae122 100644
--- a/drivers/tty/serial/8250/8250_core.c
+++ b/drivers/tty/serial/8250/8250_core.c
@@ -2138,8 +2138,8 @@ int serial8250_do_startup(struct uart_port *port)
 	/*
 	 * Clear the interrupt registers.
 	 */
-	if (serial_port_in(port, UART_LSR) & UART_LSR_DR)
-		serial_port_in(port, UART_RX);
+	serial_port_in(port, UART_LSR);
+	serial_port_in(port, UART_RX);
 	serial_port_in(port, UART_IIR);
 	serial_port_in(port, UART_MSR);
 
@@ -2300,8 +2300,8 @@ dont_test_tx_en:
 	 * saved flags to avoid getting false values from polling
 	 * routines or the previous session.
 	 */
-	if (serial_port_in(port, UART_LSR) & UART_LSR_DR)
-		serial_port_in(port, UART_RX);
+	serial_port_in(port, UART_LSR);
+	serial_port_in(port, UART_RX);
 	serial_port_in(port, UART_IIR);
 	serial_port_in(port, UART_MSR);
 	up->lsr_saved_flags = 0;
@@ -2394,8 +2394,7 @@ void serial8250_do_shutdown(struct uart_port *port)
 	 * Read data port to reset things, and then unlink from
 	 * the IRQ chain.
 	 */
-	if (serial_port_in(port, UART_LSR) & UART_LSR_DR)
-		serial_port_in(port, UART_RX);
+	serial_port_in(port, UART_RX);
 	serial8250_rpm_put(up);
 
 	del_timer_sync(&up->timer);
diff --git a/drivers/tty/serial/8250/8250_dw.c b/drivers/tty/serial/8250/8250_dw.c
index e601162..6ae5b85 100644
--- a/drivers/tty/serial/8250/8250_dw.c
+++ b/drivers/tty/serial/8250/8250_dw.c
@@ -59,6 +59,8 @@ struct dw8250_data {
 	u8			usr_reg;
 	int			last_mcr;
 	int			line;
+	int			msr_mask_on;
+	int			msr_mask_off;
 	struct clk		*clk;
 	struct clk		*pclk;
 	struct reset_control	*rst;
@@ -81,6 +83,12 @@ static inline int dw8250_modify_msr(struct uart_port *p, int offset, int value)
 		value &= ~UART_MSR_DCTS;
 	}
 
+	/* Override any modem control signals if needed */
+	if (offset == UART_MSR) {
+		value |= d->msr_mask_on;
+		value &= ~d->msr_mask_off;
+	}
+
 	return value;
 }
 
@@ -111,7 +119,10 @@ static void dw8250_serial_out(struct uart_port *p, int offset, int value)
 			dw8250_force_idle(p);
 			writeb(value, p->membase + (UART_LCR << p->regshift));
 		}
-		dev_err(p->dev, "Couldn't set LCR to %d\n", value);
+		/*
+		 * FIXME: this deadlocks if port->lock is already held
+		 * dev_err(p->dev, "Couldn't set LCR to %d\n", value);
+		 */
 	}
 }
 
@@ -155,7 +166,10 @@ static void dw8250_serial_outq(struct uart_port *p, int offset, int value)
 			__raw_writeq(value & 0xff,
 				     p->membase + (UART_LCR << p->regshift));
 		}
-		dev_err(p->dev, "Couldn't set LCR to %d\n", value);
+		/*
+		 * FIXME: this deadlocks if port->lock is already held
+		 * dev_err(p->dev, "Couldn't set LCR to %d\n", value);
+		 */
 	}
 }
 #endif /* CONFIG_64BIT */
@@ -179,7 +193,10 @@ static void dw8250_serial_out32(struct uart_port *p, int offset, int value)
 			dw8250_force_idle(p);
 			writel(value, p->membase + (UART_LCR << p->regshift));
 		}
-		dev_err(p->dev, "Couldn't set LCR to %d\n", value);
+		/*
+		 * FIXME: this deadlocks if port->lock is already held
+		 * dev_err(p->dev, "Couldn't set LCR to %d\n", value);
+		 */
 	}
 }
 
@@ -334,6 +351,30 @@ static int dw8250_probe_of(struct uart_port *p,
 	if (id >= 0)
 		p->line = id;
 
+	if (of_property_read_bool(np, "dcd-override")) {
+		/* Always report DCD as active */
+		data->msr_mask_on |= UART_MSR_DCD;
+		data->msr_mask_off |= UART_MSR_DDCD;
+	}
+
+	if (of_property_read_bool(np, "dsr-override")) {
+		/* Always report DSR as active */
+		data->msr_mask_on |= UART_MSR_DSR;
+		data->msr_mask_off |= UART_MSR_DDSR;
+	}
+
+	if (of_property_read_bool(np, "cts-override")) {
+		/* Always report DSR as active */
+		data->msr_mask_on |= UART_MSR_DSR;
+		data->msr_mask_off |= UART_MSR_DDSR;
+	}
+
+	if (of_property_read_bool(np, "ri-override")) {
+		/* Always report Ring indicator as inactive */
+		data->msr_mask_off |= UART_MSR_RI;
+		data->msr_mask_off |= UART_MSR_TERI;
+	}
+
 	/* clock got configured through clk api, all done */
 	if (p->uartclk)
 		return 0;
diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/8250/8250_pci.c
index daf2c82..892eb32 100644
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -69,7 +69,7 @@ static void moan_device(const char *str, struct pci_dev *dev)
 	       "Please send the output of lspci -vv, this\n"
 	       "message (0x%04x,0x%04x,0x%04x,0x%04x), the\n"
 	       "manufacturer and name of serial board or\n"
-	       "modem board to rmk+serial@arm.linux.org.uk.\n",
+	       "modem board to <linux-serial@vger.kernel.org>.\n",
 	       pci_name(dev), str, dev->vendor, dev->device,
 	       dev->subsystem_vendor, dev->subsystem_device);
 }
@@ -1989,13 +1989,6 @@ static struct pci_serial_quirk pci_serial_quirks[] __refdata = {
 	},
 	{
 		.vendor		= PCI_VENDOR_ID_INTEL,
-		.device		= PCI_DEVICE_ID_INTEL_QRK_UART,
-		.subvendor	= PCI_ANY_ID,
-		.subdevice	= PCI_ANY_ID,
-		.setup		= pci_default_setup,
-	},
-	{
-		.vendor		= PCI_VENDOR_ID_INTEL,
 		.device		= PCI_DEVICE_ID_INTEL_BSW_UART1,
 		.subvendor	= PCI_ANY_ID,
 		.subdevice	= PCI_ANY_ID,
@@ -2201,13 +2194,6 @@ static struct pci_serial_quirk pci_serial_quirks[] __refdata = {
 	 */
 	{
 		.vendor		= PCI_VENDOR_ID_PLX,
-		.device		= PCI_DEVICE_ID_PLX_9030,
-		.subvendor	= PCI_SUBVENDOR_ID_PERLE,
-		.subdevice	= PCI_ANY_ID,
-		.setup		= pci_default_setup,
-	},
-	{
-		.vendor		= PCI_VENDOR_ID_PLX,
 		.device		= PCI_DEVICE_ID_PLX_9050,
 		.subvendor	= PCI_SUBVENDOR_ID_EXSYS,
 		.subdevice	= PCI_SUBDEVICE_ID_EXSYS_4055,
@@ -5415,10 +5401,6 @@ static struct pci_device_id serial_pci_tbl[] = {
 		PCI_ANY_ID, PCI_ANY_ID,
 		0, 0, pbn_b0_bt_2_115200 },
 
-	{	PCI_VENDOR_ID_WCH, PCI_DEVICE_ID_WCH_CH352_2S,
-		PCI_ANY_ID, PCI_ANY_ID,
-		0, 0, pbn_b0_bt_2_115200 },
-
 	{	PCIE_VENDOR_ID_WCH, PCIE_DEVICE_ID_WCH_CH384_4S,
 		PCI_ANY_ID, PCI_ANY_ID,
 		0, 0, pbn_wch384_4 },
diff --git a/drivers/tty/serial/atmel_serial.c b/drivers/tty/serial/atmel_serial.c
index 846552b..4e959c4 100644
--- a/drivers/tty/serial/atmel_serial.c
+++ b/drivers/tty/serial/atmel_serial.c
@@ -47,6 +47,7 @@
 #include <linux/gpio/consumer.h>
 #include <linux/err.h>
 #include <linux/irq.h>
+#include <linux/suspend.h>
 
 #include <asm/io.h>
 #include <asm/ioctls.h>
@@ -173,6 +174,12 @@ struct atmel_uart_port {
 	bool			ms_irq_enabled;
 	bool			is_usart;	/* usart or uart */
 	struct timer_list	uart_timer;	/* uart timer */
+
+	bool			suspended;
+	unsigned int		pending;
+	unsigned int		pending_status;
+	spinlock_t		lock_suspended;
+
 	int (*prepare_rx)(struct uart_port *port);
 	int (*prepare_tx)(struct uart_port *port);
 	void (*schedule_rx)(struct uart_port *port);
@@ -1179,12 +1186,15 @@ static irqreturn_t atmel_interrupt(int irq, void *dev_id)
 {
 	struct uart_port *port = dev_id;
 	struct atmel_uart_port *atmel_port = to_atmel_uart_port(port);
-	unsigned int status, pending, pass_counter = 0;
+	unsigned int status, pending, mask, pass_counter = 0;
 	bool gpio_handled = false;
 
+	spin_lock(&atmel_port->lock_suspended);
+
 	do {
 		status = atmel_get_lines_status(port);
-		pending = status & UART_GET_IMR(port);
+		mask = UART_GET_IMR(port);
+		pending = status & mask;
 		if (!gpio_handled) {
 			/*
 			 * Dealing with GPIO interrupt
@@ -1206,11 +1216,21 @@ static irqreturn_t atmel_interrupt(int irq, void *dev_id)
 		if (!pending)
 			break;
 
+		if (atmel_port->suspended) {
+			atmel_port->pending |= pending;
+			atmel_port->pending_status = status;
+			UART_PUT_IDR(port, mask);
+			pm_system_wakeup();
+			break;
+		}
+
 		atmel_handle_receive(port, pending);
 		atmel_handle_status(port, pending, status);
 		atmel_handle_transmit(port, pending);
 	} while (pass_counter++ < ATMEL_ISR_PASS_LIMIT);
 
+	spin_unlock(&atmel_port->lock_suspended);
+
 	return pass_counter ? IRQ_HANDLED : IRQ_NONE;
 }
 
@@ -1742,7 +1762,8 @@ static int atmel_startup(struct uart_port *port)
 	/*
 	 * Allocate the IRQ
 	 */
-	retval = request_irq(port->irq, atmel_interrupt, IRQF_SHARED,
+	retval = request_irq(port->irq, atmel_interrupt,
+			IRQF_SHARED | IRQF_COND_SUSPEND,
 			tty ? tty->name : "atmel_serial", port);
 	if (retval) {
 		dev_err(port->dev, "atmel_startup - Can't get irq\n");
@@ -2513,8 +2534,14 @@ static int atmel_serial_suspend(struct platform_device *pdev,
 
 	/* we can not wake up if we're running on slow clock */
 	atmel_port->may_wakeup = device_may_wakeup(&pdev->dev);
-	if (atmel_serial_clk_will_stop())
+	if (atmel_serial_clk_will_stop()) {
+		unsigned long flags;
+
+		spin_lock_irqsave(&atmel_port->lock_suspended, flags);
+		atmel_port->suspended = true;
+		spin_unlock_irqrestore(&atmel_port->lock_suspended, flags);
 		device_set_wakeup_enable(&pdev->dev, 0);
+	}
 
 	uart_suspend_port(&atmel_uart, port);
 
@@ -2525,6 +2552,18 @@ static int atmel_serial_resume(struct platform_device *pdev)
 {
 	struct uart_port *port = platform_get_drvdata(pdev);
 	struct atmel_uart_port *atmel_port = to_atmel_uart_port(port);
+	unsigned long flags;
+
+	spin_lock_irqsave(&atmel_port->lock_suspended, flags);
+	if (atmel_port->pending) {
+		atmel_handle_receive(port, atmel_port->pending);
+		atmel_handle_status(port, atmel_port->pending,
+				    atmel_port->pending_status);
+		atmel_handle_transmit(port, atmel_port->pending);
+		atmel_port->pending = 0;
+	}
+	atmel_port->suspended = false;
+	spin_unlock_irqrestore(&atmel_port->lock_suspended, flags);
 
 	uart_resume_port(&atmel_uart, port);
 	device_set_wakeup_enable(&pdev->dev, atmel_port->may_wakeup);
@@ -2593,6 +2632,8 @@ static int atmel_serial_probe(struct platform_device *pdev)
 	port->backup_imr = 0;
 	port->uart.line = ret;
 
+	spin_lock_init(&port->lock_suspended);
+
 	ret = atmel_init_gpios(port, &pdev->dev);
 	if (ret < 0)
 		dev_err(&pdev->dev, "%s",
diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty/serial/fsl_lpuart.c
index b1893f3..3ad1458 100644
--- a/drivers/tty/serial/fsl_lpuart.c
+++ b/drivers/tty/serial/fsl_lpuart.c
@@ -921,6 +921,9 @@ static void lpuart_setup_watermark(struct lpuart_port *sport)
 	writeb(val | UARTPFIFO_TXFE | UARTPFIFO_RXFE,
 			sport->port.membase + UARTPFIFO);
 
+	/* explicitly clear RDRF */
+	readb(sport->port.membase + UARTSR1);
+
 	/* flush Tx and Rx FIFO */
 	writeb(UARTCFIFO_TXFLUSH | UARTCFIFO_RXFLUSH,
 			sport->port.membase + UARTCFIFO);
@@ -1076,6 +1079,8 @@ static int lpuart_startup(struct uart_port *port)
 	sport->txfifo_size = 0x1 << (((temp >> UARTPFIFO_TXSIZE_OFF) &
 		UARTPFIFO_FIFOSIZE_MASK) + 1);
 
+	sport->port.fifosize = sport->txfifo_size;
+
 	sport->rxfifo_size = 0x1 << (((temp >> UARTPFIFO_RXSIZE_OFF) &
 		UARTPFIFO_FIFOSIZE_MASK) + 1);
 
diff --git a/drivers/tty/serial/of_serial.c b/drivers/tty/serial/of_serial.c
index 7ff61e2..33fb94f 100644
--- a/drivers/tty/serial/of_serial.c
+++ b/drivers/tty/serial/of_serial.c
@@ -133,10 +133,6 @@ static int of_platform_serial_setup(struct platform_device *ofdev,
 	if (of_find_property(np, "no-loopback-test", NULL))
 		port->flags |= UPF_SKIP_TEST;
 
-	ret = of_alias_get_id(np, "serial");
-	if (ret >= 0)
-		port->line = ret;
-
 	port->dev = &ofdev->dev;
 
 	switch (type) {
diff --git a/drivers/tty/serial/samsung.c b/drivers/tty/serial/samsung.c
index af821a9..cf08876 100644
--- a/drivers/tty/serial/samsung.c
+++ b/drivers/tty/serial/samsung.c
@@ -963,6 +963,7 @@ static void s3c24xx_serial_shutdown(struct uart_port *port)
 			free_irq(ourport->tx_irq, ourport);
 		tx_enabled(port) = 0;
 		ourport->tx_claimed = 0;
+		ourport->tx_mode = 0;
 	}
 
 	if (ourport->rx_claimed) {
diff --git a/drivers/tty/serial/sprd_serial.c b/drivers/tty/serial/sprd_serial.c
index 594b633..bca975f 100644
--- a/drivers/tty/serial/sprd_serial.c
+++ b/drivers/tty/serial/sprd_serial.c
@@ -293,8 +293,10 @@ static irqreturn_t sprd_handle_irq(int irq, void *dev_id)
 
 	ims = serial_in(port, SPRD_IMSR);
 
-	if (!ims)
+	if (!ims) {
+		spin_unlock(&port->lock);
 		return IRQ_NONE;
+	}
 
 	serial_out(port, SPRD_ICLR, ~0);
 
diff --git a/drivers/tty/sysrq.c b/drivers/tty/sysrq.c
index 259a4d5..843f2cd 100644
--- a/drivers/tty/sysrq.c
+++ b/drivers/tty/sysrq.c
@@ -275,6 +275,7 @@ static struct sysrq_key_op sysrq_showregs_op = {
 static void sysrq_handle_showstate(int key)
 {
 	show_state();
+	show_workqueue_state();
 }
 static struct sysrq_key_op sysrq_showstate_op = {
 	.handler	= sysrq_handle_showstate,
diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c
index 51f066a..2bb4dfc 100644
--- a/drivers/tty/tty_io.c
+++ b/drivers/tty/tty_io.c
@@ -1028,8 +1028,8 @@ EXPORT_SYMBOL(start_tty);
 /* We limit tty time update visibility to every 8 seconds or so. */
 static void tty_update_time(struct timespec *time)
 {
-	unsigned long sec = get_seconds() & ~7;
-	if ((long)(sec - time->tv_sec) > 0)
+	unsigned long sec = get_seconds();
+	if (abs(sec - time->tv_sec) & ~7)
 		time->tv_sec = sec;
 }
 
diff --git a/drivers/tty/tty_ioctl.c b/drivers/tty/tty_ioctl.c
index a5cf253..632fc81 100644
--- a/drivers/tty/tty_ioctl.c
+++ b/drivers/tty/tty_ioctl.c
@@ -217,11 +217,17 @@ void tty_wait_until_sent(struct tty_struct *tty, long timeout)
 #endif
 	if (!timeout)
 		timeout = MAX_SCHEDULE_TIMEOUT;
-	if (wait_event_interruptible_timeout(tty->write_wait,
-			!tty_chars_in_buffer(tty), timeout) >= 0) {
-		if (tty->ops->wait_until_sent)
-			tty->ops->wait_until_sent(tty, timeout);
-	}
+
+	timeout = wait_event_interruptible_timeout(tty->write_wait,
+			!tty_chars_in_buffer(tty), timeout);
+	if (timeout <= 0)
+		return;
+
+	if (timeout == MAX_SCHEDULE_TIMEOUT)
+		timeout = 0;
+
+	if (tty->ops->wait_until_sent)
+		tty->ops->wait_until_sent(tty, timeout);
 }
 EXPORT_SYMBOL(tty_wait_until_sent);
 
diff --git a/drivers/usb/Makefile b/drivers/usb/Makefile
index 2f1e2aa..d8926c6 100644
--- a/drivers/usb/Makefile
+++ b/drivers/usb/Makefile
@@ -5,6 +5,7 @@
 # Object files in subdirectories
 
 obj-$(CONFIG_USB)		+= core/
+obj-$(CONFIG_USB_SUPPORT)	+= phy/
 
 obj-$(CONFIG_USB_DWC3)		+= dwc3/
 obj-$(CONFIG_USB_DWC2)		+= dwc2/
@@ -48,7 +49,6 @@ obj-$(CONFIG_USB_MICROTEK)	+= image/
 obj-$(CONFIG_USB_SERIAL)	+= serial/
 
 obj-$(CONFIG_USB)		+= misc/
-obj-$(CONFIG_USB_SUPPORT)	+= phy/
 obj-$(CONFIG_EARLY_PRINTK_DBGP)	+= early/
 
 obj-$(CONFIG_USB_ATM)		+= atm/
diff --git a/drivers/usb/atm/ueagle-atm.c b/drivers/usb/atm/ueagle-atm.c
index 5a45937..888998a 100644
--- a/drivers/usb/atm/ueagle-atm.c
+++ b/drivers/usb/atm/ueagle-atm.c
@@ -952,7 +952,7 @@ static void uea_load_page_e1(struct work_struct *work)
 	int i;
 
 	/* reload firmware when reboot start and it's loaded already */
-	if (ovl == 0 && pageno == 0 && sc->dsp_firm) {
+	if (ovl == 0 && pageno == 0) {
 		release_firmware(sc->dsp_firm);
 		sc->dsp_firm = NULL;
 	}
@@ -1074,7 +1074,7 @@ static void uea_load_page_e4(struct work_struct *work)
 	uea_dbg(INS_TO_USBDEV(sc), "sending DSP page %u\n", pageno);
 
 	/* reload firmware when reboot start and it's loaded already */
-	if (pageno == 0 && sc->dsp_firm) {
+	if (pageno == 0) {
 		release_firmware(sc->dsp_firm);
 		sc->dsp_firm = NULL;
 	}
diff --git a/drivers/usb/c67x00/c67x00-hcd.c b/drivers/usb/c67x00/c67x00-hcd.c
index 20ec4ee..c2d1396 100644
--- a/drivers/usb/c67x00/c67x00-hcd.c
+++ b/drivers/usb/c67x00/c67x00-hcd.c
@@ -34,7 +34,7 @@
 
 static __u8 c67x00_hub_des[] = {
 	0x09,			/*  __u8  bLength; */
-	0x29,			/*  __u8  bDescriptorType; Hub-descriptor */
+	USB_DT_HUB,		/*  __u8  bDescriptorType; Hub-descriptor */
 	0x02,			/*  __u8  bNbrPorts; */
 	0x00,			/* __u16  wHubCharacteristics; */
 	0x00,			/*   (per-port OC, no power switching) */
diff --git a/drivers/usb/chipidea/Kconfig b/drivers/usb/chipidea/Kconfig
index 77b47d8..5ce3f1d 100644
--- a/drivers/usb/chipidea/Kconfig
+++ b/drivers/usb/chipidea/Kconfig
@@ -10,6 +10,17 @@ config USB_CHIPIDEA
 
 if USB_CHIPIDEA
 
+config USB_CHIPIDEA_OF
+	tristate
+	depends on OF
+	default USB_CHIPIDEA
+
+config USB_CHIPIDEA_PCI
+	tristate
+	depends on PCI
+	depends on NOP_USB_XCEIV
+	default USB_CHIPIDEA
+
 config USB_CHIPIDEA_UDC
 	bool "ChipIdea device controller"
 	depends on USB_GADGET
diff --git a/drivers/usb/chipidea/Makefile b/drivers/usb/chipidea/Makefile
index 1fc86a2..4decb12 100644
--- a/drivers/usb/chipidea/Makefile
+++ b/drivers/usb/chipidea/Makefile
@@ -14,11 +14,6 @@ obj-$(CONFIG_USB_CHIPIDEA)	+= ci_hdrc_usb2.o
 obj-$(CONFIG_USB_CHIPIDEA)	+= ci_hdrc_msm.o
 obj-$(CONFIG_USB_CHIPIDEA)	+= ci_hdrc_zevio.o
 
-# PCI doesn't provide stubs, need to check
-ifneq ($(CONFIG_PCI),)
-	obj-$(CONFIG_USB_CHIPIDEA)	+= ci_hdrc_pci.o
-endif
+obj-$(CONFIG_USB_CHIPIDEA_PCI)	+= ci_hdrc_pci.o
 
-ifneq ($(CONFIG_OF),)
-	obj-$(CONFIG_USB_CHIPIDEA)	+= usbmisc_imx.o ci_hdrc_imx.o
-endif
+obj-$(CONFIG_USB_CHIPIDEA_OF)	+= usbmisc_imx.o ci_hdrc_imx.o
diff --git a/drivers/usb/chipidea/bits.h b/drivers/usb/chipidea/bits.h
index ca57e3d..3cb9bda 100644
--- a/drivers/usb/chipidea/bits.h
+++ b/drivers/usb/chipidea/bits.h
@@ -15,6 +15,16 @@
 
 #include <linux/usb/ehci_def.h>
 
+/*
+ * ID
+ * For 1.x revision, bit24 - bit31 are reserved
+ * For 2.x revision, bit25 - bit28 are 0x2
+ */
+#define TAG		      (0x1F << 16)
+#define REVISION	      (0xF << 21)
+#define VERSION		      (0xF << 25)
+#define CIVERSION	      (0x7 << 29)
+
 /* HCCPARAMS */
 #define HCCPARAMS_LEN         BIT(17)
 
@@ -53,6 +63,7 @@
 #define PORTSC_HSP            BIT(9)
 #define PORTSC_PP             BIT(12)
 #define PORTSC_PTC            (0x0FUL << 16)
+#define PORTSC_WKCN           BIT(20)
 #define PORTSC_PHCD(d)	      ((d) ? BIT(22) : BIT(23))
 /* PTS and PTW for non lpm version only */
 #define PORTSC_PFSC           BIT(24)
diff --git a/drivers/usb/chipidea/ci.h b/drivers/usb/chipidea/ci.h
index 65913d4..6d6200e3 100644
--- a/drivers/usb/chipidea/ci.h
+++ b/drivers/usb/chipidea/ci.h
@@ -29,6 +29,15 @@
 /******************************************************************************
  * REGISTERS
  *****************************************************************************/
+/* Identification Registers */
+#define ID_ID				0x0
+#define ID_HWGENERAL			0x4
+#define ID_HWHOST			0x8
+#define ID_HWDEVICE			0xc
+#define ID_HWTXBUF			0x10
+#define ID_HWRXBUF			0x14
+#define ID_SBUSCFG			0x90
+
 /* register indices */
 enum ci_hw_regs {
 	CAP_CAPLENGTH,
@@ -97,6 +106,18 @@ enum ci_role {
 	CI_ROLE_END,
 };
 
+enum ci_revision {
+	CI_REVISION_1X = 10,	/* Revision 1.x */
+	CI_REVISION_20 = 20, /* Revision 2.0 */
+	CI_REVISION_21, /* Revision 2.1 */
+	CI_REVISION_22, /* Revision 2.2 */
+	CI_REVISION_23, /* Revision 2.3 */
+	CI_REVISION_24, /* Revision 2.4 */
+	CI_REVISION_25, /* Revision 2.5 */
+	CI_REVISION_25_PLUS, /* Revision above than 2.5 */
+	CI_REVISION_UNKNOWN = 99, /* Unknown Revision */
+};
+
 /**
  * struct ci_role_driver - host/gadget role driver
  * @start: start this role
@@ -141,7 +162,10 @@ struct hw_bank {
  * @role: current role
  * @is_otg: if the device is otg-capable
  * @fsm: otg finite state machine
- * @fsm_timer: pointer to timer list of otg fsm
+ * @otg_fsm_hrtimer: hrtimer for otg fsm timers
+ * @hr_timeouts: time out list for active otg fsm timers
+ * @enabled_otg_timer_bits: bits of enabled otg timers
+ * @next_otg_timer: next nearest enabled timer to be expired
  * @work: work for role changing
  * @wq: workqueue thread
  * @qh_pool: allocation pool for queue heads
@@ -169,6 +193,10 @@ struct hw_bank {
  * @b_sess_valid_event: indicates there is a vbus event, and handled
  * at ci_otg_work
  * @imx28_write_fix: Freescale imx28 needs swp instruction for writing
+ * @supports_runtime_pm: if runtime pm is supported
+ * @in_lpm: if the core in low power mode
+ * @wakeup_int: if wakeup interrupt occur
+ * @rev: The revision number for controller
  */
 struct ci_hdrc {
 	struct device			*dev;
@@ -180,7 +208,10 @@ struct ci_hdrc {
 	bool				is_otg;
 	struct usb_otg			otg;
 	struct otg_fsm			fsm;
-	struct ci_otg_fsm_timer_list	*fsm_timer;
+	struct hrtimer			otg_fsm_hrtimer;
+	ktime_t				hr_timeouts[NUM_OTG_FSM_TIMERS];
+	unsigned			enabled_otg_timer_bits;
+	enum otg_fsm_timer		next_otg_timer;
 	struct work_struct		work;
 	struct workqueue_struct		*wq;
 
@@ -211,6 +242,10 @@ struct ci_hdrc {
 	bool				id_event;
 	bool				b_sess_valid_event;
 	bool				imx28_write_fix;
+	bool				supports_runtime_pm;
+	bool				in_lpm;
+	bool				wakeup_int;
+	enum ci_revision		rev;
 };
 
 static inline struct ci_role_driver *ci_role(struct ci_hdrc *ci)
@@ -248,6 +283,36 @@ static inline void ci_role_stop(struct ci_hdrc *ci)
 }
 
 /**
+ * hw_read_id_reg: reads from a identification register
+ * @ci: the controller
+ * @offset: offset from the beginning of identification registers region
+ * @mask: bitfield mask
+ *
+ * This function returns register contents
+ */
+static inline u32 hw_read_id_reg(struct ci_hdrc *ci, u32 offset, u32 mask)
+{
+	return ioread32(ci->hw_bank.abs + offset) & mask;
+}
+
+/**
+ * hw_write_id_reg: writes to a identification register
+ * @ci: the controller
+ * @offset: offset from the beginning of identification registers region
+ * @mask: bitfield mask
+ * @data: new value
+ */
+static inline void hw_write_id_reg(struct ci_hdrc *ci, u32 offset,
+			    u32 mask, u32 data)
+{
+	if (~mask)
+		data = (ioread32(ci->hw_bank.abs + offset) & ~mask)
+			| (data & mask);
+
+	iowrite32(data, ci->hw_bank.abs + offset);
+}
+
+/**
  * hw_read: reads from a hw register
  * @ci: the controller
  * @reg:  register index
diff --git a/drivers/usb/chipidea/ci_hdrc_imx.c b/drivers/usb/chipidea/ci_hdrc_imx.c
index 0f05de7..389f0e0 100644
--- a/drivers/usb/chipidea/ci_hdrc_imx.c
+++ b/drivers/usb/chipidea/ci_hdrc_imx.c
@@ -23,22 +23,40 @@
 #include "ci.h"
 #include "ci_hdrc_imx.h"
 
-#define CI_HDRC_IMX_IMX28_WRITE_FIX BIT(0)
-
 struct ci_hdrc_imx_platform_flag {
 	unsigned int flags;
+	bool runtime_pm;
 };
 
 static const struct ci_hdrc_imx_platform_flag imx27_usb_data = {
 };
 
 static const struct ci_hdrc_imx_platform_flag imx28_usb_data = {
-	.flags = CI_HDRC_IMX_IMX28_WRITE_FIX,
+	.flags = CI_HDRC_IMX28_WRITE_FIX |
+		CI_HDRC_TURN_VBUS_EARLY_ON,
+};
+
+static const struct ci_hdrc_imx_platform_flag imx6q_usb_data = {
+	.flags = CI_HDRC_SUPPORTS_RUNTIME_PM |
+		CI_HDRC_TURN_VBUS_EARLY_ON,
+};
+
+static const struct ci_hdrc_imx_platform_flag imx6sl_usb_data = {
+	.flags = CI_HDRC_SUPPORTS_RUNTIME_PM |
+		CI_HDRC_TURN_VBUS_EARLY_ON,
+};
+
+static const struct ci_hdrc_imx_platform_flag imx6sx_usb_data = {
+	.flags = CI_HDRC_SUPPORTS_RUNTIME_PM |
+		CI_HDRC_TURN_VBUS_EARLY_ON,
 };
 
 static const struct of_device_id ci_hdrc_imx_dt_ids[] = {
 	{ .compatible = "fsl,imx28-usb", .data = &imx28_usb_data},
 	{ .compatible = "fsl,imx27-usb", .data = &imx27_usb_data},
+	{ .compatible = "fsl,imx6q-usb", .data = &imx6q_usb_data},
+	{ .compatible = "fsl,imx6sl-usb", .data = &imx6sl_usb_data},
+	{ .compatible = "fsl,imx6sx-usb", .data = &imx6sl_usb_data},
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, ci_hdrc_imx_dt_ids);
@@ -48,6 +66,8 @@ struct ci_hdrc_imx_data {
 	struct platform_device *ci_pdev;
 	struct clk *clk;
 	struct imx_usbmisc_data *usbmisc_data;
+	bool supports_runtime_pm;
+	bool in_lpm;
 };
 
 /* Common functions shared by usbmisc drivers */
@@ -145,21 +165,18 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev)
 	}
 
 	pdata.usb_phy = data->phy;
-
-	if (imx_platform_flag->flags & CI_HDRC_IMX_IMX28_WRITE_FIX)
-		pdata.flags |= CI_HDRC_IMX28_WRITE_FIX;
+	pdata.flags |= imx_platform_flag->flags;
+	if (pdata.flags & CI_HDRC_SUPPORTS_RUNTIME_PM)
+		data->supports_runtime_pm = true;
 
 	ret = dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
 	if (ret)
 		goto err_clk;
 
-	if (data->usbmisc_data) {
-		ret = imx_usbmisc_init(data->usbmisc_data);
-		if (ret) {
-			dev_err(&pdev->dev, "usbmisc init failed, ret=%d\n",
-					ret);
-			goto err_clk;
-		}
+	ret = imx_usbmisc_init(data->usbmisc_data);
+	if (ret) {
+		dev_err(&pdev->dev, "usbmisc init failed, ret=%d\n", ret);
+		goto err_clk;
 	}
 
 	data->ci_pdev = ci_hdrc_add_device(&pdev->dev,
@@ -173,19 +190,20 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev)
 		goto err_clk;
 	}
 
-	if (data->usbmisc_data) {
-		ret = imx_usbmisc_init_post(data->usbmisc_data);
-		if (ret) {
-			dev_err(&pdev->dev, "usbmisc post failed, ret=%d\n",
-					ret);
-			goto disable_device;
-		}
+	ret = imx_usbmisc_init_post(data->usbmisc_data);
+	if (ret) {
+		dev_err(&pdev->dev, "usbmisc post failed, ret=%d\n", ret);
+		goto disable_device;
 	}
 
 	platform_set_drvdata(pdev, data);
 
-	pm_runtime_no_callbacks(&pdev->dev);
-	pm_runtime_enable(&pdev->dev);
+	if (data->supports_runtime_pm) {
+		pm_runtime_set_active(&pdev->dev);
+		pm_runtime_enable(&pdev->dev);
+	}
+
+	device_set_wakeup_capable(&pdev->dev, true);
 
 	return 0;
 
@@ -200,14 +218,18 @@ static int ci_hdrc_imx_remove(struct platform_device *pdev)
 {
 	struct ci_hdrc_imx_data *data = platform_get_drvdata(pdev);
 
-	pm_runtime_disable(&pdev->dev);
+	if (data->supports_runtime_pm) {
+		pm_runtime_get_sync(&pdev->dev);
+		pm_runtime_disable(&pdev->dev);
+		pm_runtime_put_noidle(&pdev->dev);
+	}
 	ci_hdrc_remove_device(data->ci_pdev);
 	clk_disable_unprepare(data->clk);
 
 	return 0;
 }
 
-#ifdef CONFIG_PM_SLEEP
+#ifdef CONFIG_PM
 static int imx_controller_suspend(struct device *dev)
 {
 	struct ci_hdrc_imx_data *data = dev_get_drvdata(dev);
@@ -215,6 +237,7 @@ static int imx_controller_suspend(struct device *dev)
 	dev_dbg(dev, "at %s\n", __func__);
 
 	clk_disable_unprepare(data->clk);
+	data->in_lpm = true;
 
 	return 0;
 }
@@ -222,25 +245,103 @@ static int imx_controller_suspend(struct device *dev)
 static int imx_controller_resume(struct device *dev)
 {
 	struct ci_hdrc_imx_data *data = dev_get_drvdata(dev);
+	int ret = 0;
 
 	dev_dbg(dev, "at %s\n", __func__);
 
-	return clk_prepare_enable(data->clk);
+	if (!data->in_lpm) {
+		WARN_ON(1);
+		return 0;
+	}
+
+	ret = clk_prepare_enable(data->clk);
+	if (ret)
+		return ret;
+
+	data->in_lpm = false;
+
+	ret = imx_usbmisc_set_wakeup(data->usbmisc_data, false);
+	if (ret) {
+		dev_err(dev, "usbmisc set_wakeup failed, ret=%d\n", ret);
+		goto clk_disable;
+	}
+
+	return 0;
+
+clk_disable:
+	clk_disable_unprepare(data->clk);
+	return ret;
 }
 
+#ifdef CONFIG_PM_SLEEP
 static int ci_hdrc_imx_suspend(struct device *dev)
 {
+	int ret;
+
+	struct ci_hdrc_imx_data *data = dev_get_drvdata(dev);
+
+	if (data->in_lpm)
+		/* The core's suspend doesn't run */
+		return 0;
+
+	if (device_may_wakeup(dev)) {
+		ret = imx_usbmisc_set_wakeup(data->usbmisc_data, true);
+		if (ret) {
+			dev_err(dev, "usbmisc set_wakeup failed, ret=%d\n",
+					ret);
+			return ret;
+		}
+	}
+
 	return imx_controller_suspend(dev);
 }
 
 static int ci_hdrc_imx_resume(struct device *dev)
 {
-	return imx_controller_resume(dev);
+	struct ci_hdrc_imx_data *data = dev_get_drvdata(dev);
+	int ret;
+
+	ret = imx_controller_resume(dev);
+	if (!ret && data->supports_runtime_pm) {
+		pm_runtime_disable(dev);
+		pm_runtime_set_active(dev);
+		pm_runtime_enable(dev);
+	}
+
+	return ret;
 }
 #endif /* CONFIG_PM_SLEEP */
 
+static int ci_hdrc_imx_runtime_suspend(struct device *dev)
+{
+	struct ci_hdrc_imx_data *data = dev_get_drvdata(dev);
+	int ret;
+
+	if (data->in_lpm) {
+		WARN_ON(1);
+		return 0;
+	}
+
+	ret = imx_usbmisc_set_wakeup(data->usbmisc_data, true);
+	if (ret) {
+		dev_err(dev, "usbmisc set_wakeup failed, ret=%d\n", ret);
+		return ret;
+	}
+
+	return imx_controller_suspend(dev);
+}
+
+static int ci_hdrc_imx_runtime_resume(struct device *dev)
+{
+	return imx_controller_resume(dev);
+}
+
+#endif /* CONFIG_PM */
+
 static const struct dev_pm_ops ci_hdrc_imx_pm_ops = {
 	SET_SYSTEM_SLEEP_PM_OPS(ci_hdrc_imx_suspend, ci_hdrc_imx_resume)
+	SET_RUNTIME_PM_OPS(ci_hdrc_imx_runtime_suspend,
+			ci_hdrc_imx_runtime_resume, NULL)
 };
 static struct platform_driver ci_hdrc_imx_driver = {
 	.probe = ci_hdrc_imx_probe,
diff --git a/drivers/usb/chipidea/ci_hdrc_imx.h b/drivers/usb/chipidea/ci_hdrc_imx.h
index 4ed828f..635717e 100644
--- a/drivers/usb/chipidea/ci_hdrc_imx.h
+++ b/drivers/usb/chipidea/ci_hdrc_imx.h
@@ -22,5 +22,6 @@ struct imx_usbmisc_data {
 
 int imx_usbmisc_init(struct imx_usbmisc_data *);
 int imx_usbmisc_init_post(struct imx_usbmisc_data *);
+int imx_usbmisc_set_wakeup(struct imx_usbmisc_data *, bool);
 
 #endif /* __DRIVER_USB_CHIPIDEA_CI_HDRC_IMX_H */
diff --git a/drivers/usb/chipidea/ci_hdrc_pci.c b/drivers/usb/chipidea/ci_hdrc_pci.c
index 4df6694..773d150 100644
--- a/drivers/usb/chipidea/ci_hdrc_pci.c
+++ b/drivers/usb/chipidea/ci_hdrc_pci.c
@@ -16,10 +16,16 @@
 #include <linux/interrupt.h>
 #include <linux/usb/gadget.h>
 #include <linux/usb/chipidea.h>
+#include <linux/usb/usb_phy_generic.h>
 
 /* driver name */
 #define UDC_DRIVER_NAME   "ci_hdrc_pci"
 
+struct ci_hdrc_pci {
+	struct platform_device	*ci;
+	struct platform_device	*phy;
+};
+
 /******************************************************************************
  * PCI block
  *****************************************************************************/
@@ -52,7 +58,7 @@ static int ci_hdrc_pci_probe(struct pci_dev *pdev,
 				       const struct pci_device_id *id)
 {
 	struct ci_hdrc_platform_data *platdata = (void *)id->driver_data;
-	struct platform_device *plat_ci;
+	struct ci_hdrc_pci *ci;
 	struct resource res[3];
 	int retval = 0, nres = 2;
 
@@ -61,6 +67,10 @@ static int ci_hdrc_pci_probe(struct pci_dev *pdev,
 		return -ENODEV;
 	}
 
+	ci = devm_kzalloc(&pdev->dev, sizeof(*ci), GFP_KERNEL);
+	if (!ci)
+		return -ENOMEM;
+
 	retval = pcim_enable_device(pdev);
 	if (retval)
 		return retval;
@@ -73,6 +83,11 @@ static int ci_hdrc_pci_probe(struct pci_dev *pdev,
 	pci_set_master(pdev);
 	pci_try_set_mwi(pdev);
 
+	/* register a nop PHY */
+	ci->phy = usb_phy_generic_register();
+	if (!ci->phy)
+		return -ENOMEM;
+
 	memset(res, 0, sizeof(res));
 	res[0].start	= pci_resource_start(pdev, 0);
 	res[0].end	= pci_resource_end(pdev, 0);
@@ -80,13 +95,14 @@ static int ci_hdrc_pci_probe(struct pci_dev *pdev,
 	res[1].start	= pdev->irq;
 	res[1].flags	= IORESOURCE_IRQ;
 
-	plat_ci = ci_hdrc_add_device(&pdev->dev, res, nres, platdata);
-	if (IS_ERR(plat_ci)) {
+	ci->ci = ci_hdrc_add_device(&pdev->dev, res, nres, platdata);
+	if (IS_ERR(ci->ci)) {
 		dev_err(&pdev->dev, "ci_hdrc_add_device failed!\n");
-		return PTR_ERR(plat_ci);
+		usb_phy_generic_unregister(ci->phy);
+		return PTR_ERR(ci->ci);
 	}
 
-	pci_set_drvdata(pdev, plat_ci);
+	pci_set_drvdata(pdev, ci);
 
 	return 0;
 }
@@ -101,9 +117,10 @@ static int ci_hdrc_pci_probe(struct pci_dev *pdev,
  */
 static void ci_hdrc_pci_remove(struct pci_dev *pdev)
 {
-	struct platform_device *plat_ci = pci_get_drvdata(pdev);
+	struct ci_hdrc_pci *ci = pci_get_drvdata(pdev);
 
-	ci_hdrc_remove_device(plat_ci);
+	ci_hdrc_remove_device(ci->ci);
+	usb_phy_generic_unregister(ci->phy);
 }
 
 /**
diff --git a/drivers/usb/chipidea/ci_hdrc_zevio.c b/drivers/usb/chipidea/ci_hdrc_zevio.c
index d976fc1..1264de5 100644
--- a/drivers/usb/chipidea/ci_hdrc_zevio.c
+++ b/drivers/usb/chipidea/ci_hdrc_zevio.c
@@ -18,7 +18,7 @@
 
 static struct ci_hdrc_platform_data ci_hdrc_zevio_platdata = {
 	.name			= "ci_hdrc_zevio",
-	.flags			= CI_HDRC_REGS_SHARED,
+	.flags			= CI_HDRC_REGS_SHARED | CI_HDRC_FORCE_FULLSPEED,
 	.capoffset		= DEF_CAPOFFSET,
 };
 
diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c
index a57dc88..74fea4f 100644
--- a/drivers/usb/chipidea/core.c
+++ b/drivers/usb/chipidea/core.c
@@ -137,6 +137,22 @@ static int hw_alloc_regmap(struct ci_hdrc *ci, bool is_lpm)
 	return 0;
 }
 
+static enum ci_revision ci_get_revision(struct ci_hdrc *ci)
+{
+	int ver = hw_read_id_reg(ci, ID_ID, VERSION) >> __ffs(VERSION);
+	enum ci_revision rev = CI_REVISION_UNKNOWN;
+
+	if (ver == 0x2) {
+		rev = hw_read_id_reg(ci, ID_ID, REVISION)
+			>> __ffs(REVISION);
+		rev += CI_REVISION_20;
+	} else if (ver == 0x0) {
+		rev = CI_REVISION_1X;
+	}
+
+	return rev;
+}
+
 /**
  * hw_read_intr_enable: returns interrupt enable register
  *
@@ -251,8 +267,11 @@ static int hw_device_init(struct ci_hdrc *ci, void __iomem *base)
 	/* Clear all interrupts status bits*/
 	hw_write(ci, OP_USBSTS, 0xffffffff, 0xffffffff);
 
-	dev_dbg(ci->dev, "ChipIdea HDRC found, lpm: %d; cap: %p op: %p\n",
-		ci->hw_bank.lpm, ci->hw_bank.cap, ci->hw_bank.op);
+	ci->rev = ci_get_revision(ci);
+
+	dev_dbg(ci->dev,
+		"ChipIdea HDRC found, revision: %d, lpm: %d; cap: %p op: %p\n",
+		ci->rev, ci->hw_bank.lpm, ci->hw_bank.cap, ci->hw_bank.op);
 
 	/* setup lock mode ? */
 
@@ -491,6 +510,13 @@ static irqreturn_t ci_irq(int irq, void *data)
 	irqreturn_t ret = IRQ_NONE;
 	u32 otgsc = 0;
 
+	if (ci->in_lpm) {
+		disable_irq_nosync(irq);
+		ci->wakeup_int = true;
+		pm_runtime_get(ci->dev);
+		return IRQ_HANDLED;
+	}
+
 	if (ci->is_otg) {
 		otgsc = hw_read_otgsc(ci, ~0);
 		if (ci_otg_is_fsm_mode(ci)) {
@@ -642,8 +668,12 @@ static void ci_get_otg_capable(struct ci_hdrc *ci)
 		ci->is_otg = (hw_read(ci, CAP_DCCPARAMS,
 				DCCPARAMS_DC | DCCPARAMS_HC)
 					== (DCCPARAMS_DC | DCCPARAMS_HC));
-	if (ci->is_otg)
+	if (ci->is_otg) {
 		dev_dbg(ci->dev, "It is OTG capable controller\n");
+		/* Disable and clear all OTG irq */
+		hw_write_otgsc(ci, OTGSC_INT_EN_BITS | OTGSC_INT_STATUS_BITS,
+							OTGSC_INT_STATUS_BITS);
+	}
 }
 
 static int ci_hdrc_probe(struct platform_device *pdev)
@@ -673,6 +703,8 @@ static int ci_hdrc_probe(struct platform_device *pdev)
 	ci->platdata = dev_get_platdata(dev);
 	ci->imx28_write_fix = !!(ci->platdata->flags &
 		CI_HDRC_IMX28_WRITE_FIX);
+	ci->supports_runtime_pm = !!(ci->platdata->flags &
+		CI_HDRC_SUPPORTS_RUNTIME_PM);
 
 	ret = hw_device_init(ci, base);
 	if (ret < 0) {
@@ -740,9 +772,6 @@ static int ci_hdrc_probe(struct platform_device *pdev)
 	}
 
 	if (ci->is_otg && ci->roles[CI_ROLE_GADGET]) {
-		/* Disable and clear all OTG irq */
-		hw_write_otgsc(ci, OTGSC_INT_EN_BITS | OTGSC_INT_STATUS_BITS,
-							OTGSC_INT_STATUS_BITS);
 		ret = ci_hdrc_otg_init(ci);
 		if (ret) {
 			dev_err(dev, "init otg fails, ret = %d\n", ret);
@@ -769,11 +798,11 @@ static int ci_hdrc_probe(struct platform_device *pdev)
 			: CI_ROLE_GADGET;
 	}
 
-	/* only update vbus status for peripheral */
-	if (ci->role == CI_ROLE_GADGET)
-		ci_handle_vbus_change(ci);
-
 	if (!ci_otg_is_fsm_mode(ci)) {
+		/* only update vbus status for peripheral */
+		if (ci->role == CI_ROLE_GADGET)
+			ci_handle_vbus_change(ci);
+
 		ret = ci_role_start(ci, ci->role);
 		if (ret) {
 			dev_err(dev, "can't start %s role\n",
@@ -788,9 +817,19 @@ static int ci_hdrc_probe(struct platform_device *pdev)
 	if (ret)
 		goto stop;
 
+	if (ci->supports_runtime_pm) {
+		pm_runtime_set_active(&pdev->dev);
+		pm_runtime_enable(&pdev->dev);
+		pm_runtime_set_autosuspend_delay(&pdev->dev, 2000);
+		pm_runtime_mark_last_busy(ci->dev);
+		pm_runtime_use_autosuspend(&pdev->dev);
+	}
+
 	if (ci_otg_is_fsm_mode(ci))
 		ci_hdrc_otg_fsm_start(ci);
 
+	device_set_wakeup_capable(&pdev->dev, true);
+
 	ret = dbg_create_files(ci);
 	if (!ret)
 		return 0;
@@ -807,6 +846,12 @@ static int ci_hdrc_remove(struct platform_device *pdev)
 {
 	struct ci_hdrc *ci = platform_get_drvdata(pdev);
 
+	if (ci->supports_runtime_pm) {
+		pm_runtime_get_sync(&pdev->dev);
+		pm_runtime_disable(&pdev->dev);
+		pm_runtime_put_noidle(&pdev->dev);
+	}
+
 	dbg_remove_files(ci);
 	ci_role_destroy(ci);
 	ci_hdrc_enter_lpm(ci, true);
@@ -815,13 +860,41 @@ static int ci_hdrc_remove(struct platform_device *pdev)
 	return 0;
 }
 
-#ifdef CONFIG_PM_SLEEP
+#ifdef CONFIG_PM
+/* Prepare wakeup by SRP before suspend */
+static void ci_otg_fsm_suspend_for_srp(struct ci_hdrc *ci)
+{
+	if ((ci->fsm.otg->state == OTG_STATE_A_IDLE) &&
+				!hw_read_otgsc(ci, OTGSC_ID)) {
+		hw_write(ci, OP_PORTSC, PORTSC_W1C_BITS | PORTSC_PP,
+								PORTSC_PP);
+		hw_write(ci, OP_PORTSC, PORTSC_W1C_BITS | PORTSC_WKCN,
+								PORTSC_WKCN);
+	}
+}
+
+/* Handle SRP when wakeup by data pulse */
+static void ci_otg_fsm_wakeup_by_srp(struct ci_hdrc *ci)
+{
+	if ((ci->fsm.otg->state == OTG_STATE_A_IDLE) &&
+		(ci->fsm.a_bus_drop == 1) && (ci->fsm.a_bus_req == 0)) {
+		if (!hw_read_otgsc(ci, OTGSC_ID)) {
+			ci->fsm.a_srp_det = 1;
+			ci->fsm.a_bus_drop = 0;
+		} else {
+			ci->fsm.id = 1;
+		}
+		ci_otg_queue_work(ci);
+	}
+}
+
 static void ci_controller_suspend(struct ci_hdrc *ci)
 {
+	disable_irq(ci->irq);
 	ci_hdrc_enter_lpm(ci, true);
-
-	if (ci->usb_phy)
-		usb_phy_set_suspend(ci->usb_phy, 1);
+	usb_phy_set_suspend(ci->usb_phy, 1);
+	ci->in_lpm = true;
+	enable_irq(ci->irq);
 }
 
 static int ci_controller_resume(struct device *dev)
@@ -830,23 +903,59 @@ static int ci_controller_resume(struct device *dev)
 
 	dev_dbg(dev, "at %s\n", __func__);
 
-	ci_hdrc_enter_lpm(ci, false);
+	if (!ci->in_lpm) {
+		WARN_ON(1);
+		return 0;
+	}
 
+	ci_hdrc_enter_lpm(ci, false);
 	if (ci->usb_phy) {
 		usb_phy_set_suspend(ci->usb_phy, 0);
 		usb_phy_set_wakeup(ci->usb_phy, false);
 		hw_wait_phy_stable();
 	}
 
+	ci->in_lpm = false;
+	if (ci->wakeup_int) {
+		ci->wakeup_int = false;
+		pm_runtime_mark_last_busy(ci->dev);
+		pm_runtime_put_autosuspend(ci->dev);
+		enable_irq(ci->irq);
+		if (ci_otg_is_fsm_mode(ci))
+			ci_otg_fsm_wakeup_by_srp(ci);
+	}
+
 	return 0;
 }
 
+#ifdef CONFIG_PM_SLEEP
 static int ci_suspend(struct device *dev)
 {
 	struct ci_hdrc *ci = dev_get_drvdata(dev);
 
 	if (ci->wq)
 		flush_workqueue(ci->wq);
+	/*
+	 * Controller needs to be active during suspend, otherwise the core
+	 * may run resume when the parent is at suspend if other driver's
+	 * suspend fails, it occurs before parent's suspend has not started,
+	 * but the core suspend has finished.
+	 */
+	if (ci->in_lpm)
+		pm_runtime_resume(dev);
+
+	if (ci->in_lpm) {
+		WARN_ON(1);
+		return 0;
+	}
+
+	if (device_may_wakeup(dev)) {
+		if (ci_otg_is_fsm_mode(ci))
+			ci_otg_fsm_suspend_for_srp(ci);
+
+		usb_phy_set_wakeup(ci->usb_phy, true);
+		enable_irq_wake(ci->irq);
+	}
 
 	ci_controller_suspend(ci);
 
@@ -855,13 +964,57 @@ static int ci_suspend(struct device *dev)
 
 static int ci_resume(struct device *dev)
 {
-	return ci_controller_resume(dev);
+	struct ci_hdrc *ci = dev_get_drvdata(dev);
+	int ret;
+
+	if (device_may_wakeup(dev))
+		disable_irq_wake(ci->irq);
+
+	ret = ci_controller_resume(dev);
+	if (ret)
+		return ret;
+
+	if (ci->supports_runtime_pm) {
+		pm_runtime_disable(dev);
+		pm_runtime_set_active(dev);
+		pm_runtime_enable(dev);
+	}
+
+	return ret;
 }
 #endif /* CONFIG_PM_SLEEP */
 
+static int ci_runtime_suspend(struct device *dev)
+{
+	struct ci_hdrc *ci = dev_get_drvdata(dev);
+
+	dev_dbg(dev, "at %s\n", __func__);
+
+	if (ci->in_lpm) {
+		WARN_ON(1);
+		return 0;
+	}
+
+	if (ci_otg_is_fsm_mode(ci))
+		ci_otg_fsm_suspend_for_srp(ci);
+
+	usb_phy_set_wakeup(ci->usb_phy, true);
+	ci_controller_suspend(ci);
+
+	return 0;
+}
+
+static int ci_runtime_resume(struct device *dev)
+{
+	return ci_controller_resume(dev);
+}
+
+#endif /* CONFIG_PM */
 static const struct dev_pm_ops ci_pm_ops = {
 	SET_SYSTEM_SLEEP_PM_OPS(ci_suspend, ci_resume)
+	SET_RUNTIME_PM_OPS(ci_runtime_suspend, ci_runtime_resume, NULL)
 };
+
 static struct platform_driver ci_hdrc_driver = {
 	.probe	= ci_hdrc_probe,
 	.remove	= ci_hdrc_remove,
diff --git a/drivers/usb/chipidea/debug.c b/drivers/usb/chipidea/debug.c
index 268e423..dfb05ed 100644
--- a/drivers/usb/chipidea/debug.c
+++ b/drivers/usb/chipidea/debug.c
@@ -336,8 +336,8 @@ static int ci_registers_show(struct seq_file *s, void *unused)
 	struct ci_hdrc *ci = s->private;
 	u32 tmp_reg;
 
-	if (!ci)
-		return 0;
+	if (!ci || ci->in_lpm)
+		return -EPERM;
 
 	/* ------ Registers ----- */
 	tmp_reg = hw_read_intr_enable(ci);
diff --git a/drivers/usb/chipidea/host.c b/drivers/usb/chipidea/host.c
index 48731d0..21fe1a3 100644
--- a/drivers/usb/chipidea/host.c
+++ b/drivers/usb/chipidea/host.c
@@ -33,6 +33,7 @@
 #include "host.h"
 
 static struct hc_driver __read_mostly ci_ehci_hc_driver;
+static int (*orig_bus_suspend)(struct usb_hcd *hcd);
 
 struct ehci_ci_priv {
 	struct regulator *reg_vbus;
@@ -43,11 +44,10 @@ static int ehci_ci_portpower(struct usb_hcd *hcd, int portnum, bool enable)
 	struct ehci_hcd *ehci = hcd_to_ehci(hcd);
 	struct ehci_ci_priv *priv = (struct ehci_ci_priv *)ehci->priv;
 	struct device *dev = hcd->self.controller;
-	struct ci_hdrc *ci = dev_get_drvdata(dev);
 	int ret = 0;
 	int port = HCS_N_PORTS(ehci->hcs_params);
 
-	if (priv->reg_vbus && !ci_otg_is_fsm_mode(ci)) {
+	if (priv->reg_vbus) {
 		if (port > 1) {
 			dev_warn(dev,
 				"Not support multi-port regulator control\n");
@@ -113,12 +113,23 @@ static int host_start(struct ci_hdrc *ci)
 	priv = (struct ehci_ci_priv *)ehci->priv;
 	priv->reg_vbus = NULL;
 
-	if (ci->platdata->reg_vbus)
-		priv->reg_vbus = ci->platdata->reg_vbus;
+	if (ci->platdata->reg_vbus && !ci_otg_is_fsm_mode(ci)) {
+		if (ci->platdata->flags & CI_HDRC_TURN_VBUS_EARLY_ON) {
+			ret = regulator_enable(ci->platdata->reg_vbus);
+			if (ret) {
+				dev_err(ci->dev,
+				"Failed to enable vbus regulator, ret=%d\n",
+									ret);
+				goto put_hcd;
+			}
+		} else {
+			priv->reg_vbus = ci->platdata->reg_vbus;
+		}
+	}
 
 	ret = usb_add_hcd(hcd, 0, 0);
 	if (ret) {
-		goto put_hcd;
+		goto disable_reg;
 	} else {
 		struct usb_otg *otg = &ci->otg;
 
@@ -133,8 +144,15 @@ static int host_start(struct ci_hdrc *ci)
 	if (ci->platdata->flags & CI_HDRC_DISABLE_STREAMING)
 		hw_write(ci, OP_USBMODE, USBMODE_CI_SDIS, USBMODE_CI_SDIS);
 
+	if (ci->platdata->flags & CI_HDRC_FORCE_FULLSPEED)
+		hw_write(ci, OP_PORTSC, PORTSC_PFSC, PORTSC_PFSC);
+
 	return ret;
 
+disable_reg:
+	if (ci->platdata->reg_vbus && !ci_otg_is_fsm_mode(ci) &&
+			(ci->platdata->flags & CI_HDRC_TURN_VBUS_EARLY_ON))
+		regulator_disable(ci->platdata->reg_vbus);
 put_hcd:
 	usb_put_hcd(hcd);
 
@@ -148,6 +166,9 @@ static void host_stop(struct ci_hdrc *ci)
 	if (hcd) {
 		usb_remove_hcd(hcd);
 		usb_put_hcd(hcd);
+		if (ci->platdata->reg_vbus && !ci_otg_is_fsm_mode(ci) &&
+			(ci->platdata->flags & CI_HDRC_TURN_VBUS_EARLY_ON))
+				regulator_disable(ci->platdata->reg_vbus);
 	}
 }
 
@@ -158,6 +179,47 @@ void ci_hdrc_host_destroy(struct ci_hdrc *ci)
 		host_stop(ci);
 }
 
+static int ci_ehci_bus_suspend(struct usb_hcd *hcd)
+{
+	struct ehci_hcd *ehci = hcd_to_ehci(hcd);
+	int port;
+	u32 tmp;
+
+	int ret = orig_bus_suspend(hcd);
+
+	if (ret)
+		return ret;
+
+	port = HCS_N_PORTS(ehci->hcs_params);
+	while (port--) {
+		u32 __iomem *reg = &ehci->regs->port_status[port];
+		u32 portsc = ehci_readl(ehci, reg);
+
+		if (portsc & PORT_CONNECT) {
+			/*
+			 * For chipidea, the resume signal will be ended
+			 * automatically, so for remote wakeup case, the
+			 * usbcmd.rs may not be set before the resume has
+			 * ended if other resume paths consumes too much
+			 * time (~24ms), in that case, the SOF will not
+			 * send out within 3ms after resume ends, then the
+			 * high speed device will enter full speed mode.
+			 */
+
+			tmp = ehci_readl(ehci, &ehci->regs->command);
+			tmp |= CMD_RUN;
+			ehci_writel(ehci, tmp, &ehci->regs->command);
+			/*
+			 * It needs a short delay between set RS bit and PHCD.
+			 */
+			usleep_range(150, 200);
+			break;
+		}
+	}
+
+	return 0;
+}
+
 int ci_hdrc_host_init(struct ci_hdrc *ci)
 {
 	struct ci_role_driver *rdrv;
@@ -176,6 +238,8 @@ int ci_hdrc_host_init(struct ci_hdrc *ci)
 	ci->roles[CI_ROLE_HOST] = rdrv;
 
 	ehci_init_driver(&ci_ehci_hc_driver, &ehci_ci_overrides);
+	orig_bus_suspend = ci_ehci_hc_driver.bus_suspend;
+	ci_ehci_hc_driver.bus_suspend = ci_ehci_bus_suspend;
 
 	return 0;
 }
diff --git a/drivers/usb/chipidea/otg.c b/drivers/usb/chipidea/otg.c
index a048b08..ad6c87a 100644
--- a/drivers/usb/chipidea/otg.c
+++ b/drivers/usb/chipidea/otg.c
@@ -96,6 +96,7 @@ static void ci_otg_work(struct work_struct *work)
 		return;
 	}
 
+	pm_runtime_get_sync(ci->dev);
 	if (ci->id_event) {
 		ci->id_event = false;
 		ci_handle_id_switch(ci);
@@ -104,6 +105,7 @@ static void ci_otg_work(struct work_struct *work)
 		ci_handle_vbus_change(ci);
 	} else
 		dev_err(ci->dev, "unexpected event occurs at %s\n", __func__);
+	pm_runtime_put_sync(ci->dev);
 
 	enable_irq(ci->irq);
 }
diff --git a/drivers/usb/chipidea/otg_fsm.c b/drivers/usb/chipidea/otg_fsm.c
index 562e581..083acf4 100644
--- a/drivers/usb/chipidea/otg_fsm.c
+++ b/drivers/usb/chipidea/otg_fsm.c
@@ -30,22 +30,6 @@
 #include "otg.h"
 #include "otg_fsm.h"
 
-static struct ci_otg_fsm_timer *otg_timer_initializer
-(struct ci_hdrc *ci, void (*function)(void *, unsigned long),
-			unsigned long expires, unsigned long data)
-{
-	struct ci_otg_fsm_timer *timer;
-
-	timer = devm_kzalloc(ci->dev, sizeof(struct ci_otg_fsm_timer),
-								GFP_KERNEL);
-	if (!timer)
-		return NULL;
-	timer->function = function;
-	timer->expires = expires;
-	timer->data = data;
-	return timer;
-}
-
 /* Add for otg: interact with user space app */
 static ssize_t
 get_a_bus_req(struct device *dev, struct device_attribute *attr, char *buf)
@@ -204,229 +188,227 @@ static struct attribute_group inputs_attr_group = {
 };
 
 /*
+ * Keep this list in the same order as timers indexed
+ * by enum otg_fsm_timer in include/linux/usb/otg-fsm.h
+ */
+static unsigned otg_timer_ms[] = {
+	TA_WAIT_VRISE,
+	TA_WAIT_VFALL,
+	TA_WAIT_BCON,
+	TA_AIDL_BDIS,
+	TB_ASE0_BRST,
+	TA_BIDL_ADIS,
+	TB_SE0_SRP,
+	TB_SRP_FAIL,
+	0,
+	TB_DATA_PLS,
+	TB_SSEND_SRP,
+};
+
+/*
  * Add timer to active timer list
  */
-static void ci_otg_add_timer(struct ci_hdrc *ci, enum ci_otg_fsm_timer_index t)
+static void ci_otg_add_timer(struct ci_hdrc *ci, enum otg_fsm_timer t)
 {
-	struct ci_otg_fsm_timer *tmp_timer;
-	struct ci_otg_fsm_timer *timer = ci->fsm_timer->timer_list[t];
-	struct list_head *active_timers = &ci->fsm_timer->active_timers;
+	unsigned long flags, timer_sec, timer_nsec;
 
-	if (t >= NUM_CI_OTG_FSM_TIMERS)
+	if (t >= NUM_OTG_FSM_TIMERS)
 		return;
 
-	/*
-	 * Check if the timer is already in the active list,
-	 * if so update timer count
-	 */
-	list_for_each_entry(tmp_timer, active_timers, list)
-		if (tmp_timer == timer) {
-			timer->count = timer->expires;
-			return;
-		}
-
-	timer->count = timer->expires;
-	list_add_tail(&timer->list, active_timers);
-
-	/* Enable 1ms irq */
-	if (!(hw_read_otgsc(ci, OTGSC_1MSIE)))
-		hw_write_otgsc(ci, OTGSC_1MSIE, OTGSC_1MSIE);
+	spin_lock_irqsave(&ci->lock, flags);
+	timer_sec = otg_timer_ms[t] / MSEC_PER_SEC;
+	timer_nsec = (otg_timer_ms[t] % MSEC_PER_SEC) * NSEC_PER_MSEC;
+	ci->hr_timeouts[t] = ktime_add(ktime_get(),
+				ktime_set(timer_sec, timer_nsec));
+	ci->enabled_otg_timer_bits |= (1 << t);
+	if ((ci->next_otg_timer == NUM_OTG_FSM_TIMERS) ||
+			(ci->hr_timeouts[ci->next_otg_timer].tv64 >
+						ci->hr_timeouts[t].tv64)) {
+			ci->next_otg_timer = t;
+			hrtimer_start_range_ns(&ci->otg_fsm_hrtimer,
+					ci->hr_timeouts[t], NSEC_PER_MSEC,
+							HRTIMER_MODE_ABS);
+	}
+	spin_unlock_irqrestore(&ci->lock, flags);
 }
 
 /*
  * Remove timer from active timer list
  */
-static void ci_otg_del_timer(struct ci_hdrc *ci, enum ci_otg_fsm_timer_index t)
+static void ci_otg_del_timer(struct ci_hdrc *ci, enum otg_fsm_timer t)
 {
-	struct ci_otg_fsm_timer *tmp_timer, *del_tmp;
-	struct ci_otg_fsm_timer *timer = ci->fsm_timer->timer_list[t];
-	struct list_head *active_timers = &ci->fsm_timer->active_timers;
+	unsigned long flags, enabled_timer_bits;
+	enum otg_fsm_timer cur_timer, next_timer = NUM_OTG_FSM_TIMERS;
 
-	if (t >= NUM_CI_OTG_FSM_TIMERS)
+	if ((t >= NUM_OTG_FSM_TIMERS) ||
+			!(ci->enabled_otg_timer_bits & (1 << t)))
 		return;
 
-	list_for_each_entry_safe(tmp_timer, del_tmp, active_timers, list)
-		if (tmp_timer == timer)
-			list_del(&timer->list);
-
-	/* Disable 1ms irq if there is no any active timer */
-	if (list_empty(active_timers))
-		hw_write_otgsc(ci, OTGSC_1MSIE, 0);
-}
-
-/*
- * Reduce timer count by 1, and find timeout conditions.
- * Called by otg 1ms timer interrupt
- */
-static inline int ci_otg_tick_timer(struct ci_hdrc *ci)
-{
-	struct ci_otg_fsm_timer *tmp_timer, *del_tmp;
-	struct list_head *active_timers = &ci->fsm_timer->active_timers;
-	int expired = 0;
-
-	list_for_each_entry_safe(tmp_timer, del_tmp, active_timers, list) {
-		tmp_timer->count--;
-		/* check if timer expires */
-		if (!tmp_timer->count) {
-			list_del(&tmp_timer->list);
-			tmp_timer->function(ci, tmp_timer->data);
-			expired = 1;
+	spin_lock_irqsave(&ci->lock, flags);
+	ci->enabled_otg_timer_bits &= ~(1 << t);
+	if (ci->next_otg_timer == t) {
+		if (ci->enabled_otg_timer_bits == 0) {
+			/* No enabled timers after delete it */
+			hrtimer_cancel(&ci->otg_fsm_hrtimer);
+			ci->next_otg_timer = NUM_OTG_FSM_TIMERS;
+		} else {
+			/* Find the next timer */
+			enabled_timer_bits = ci->enabled_otg_timer_bits;
+			for_each_set_bit(cur_timer, &enabled_timer_bits,
+							NUM_OTG_FSM_TIMERS) {
+				if ((next_timer == NUM_OTG_FSM_TIMERS) ||
+					(ci->hr_timeouts[next_timer].tv64 <
+					ci->hr_timeouts[cur_timer].tv64))
+					next_timer = cur_timer;
+			}
 		}
 	}
-
-	/* disable 1ms irq if there is no any timer active */
-	if ((expired == 1) && list_empty(active_timers))
-		hw_write_otgsc(ci, OTGSC_1MSIE, 0);
-
-	return expired;
+	if (next_timer != NUM_OTG_FSM_TIMERS) {
+		ci->next_otg_timer = next_timer;
+		hrtimer_start_range_ns(&ci->otg_fsm_hrtimer,
+			ci->hr_timeouts[next_timer], NSEC_PER_MSEC,
+							HRTIMER_MODE_ABS);
+	}
+	spin_unlock_irqrestore(&ci->lock, flags);
 }
 
-/* The timeout callback function to set time out bit */
-static void set_tmout(void *ptr, unsigned long indicator)
+/* OTG FSM timer handlers */
+static int a_wait_vrise_tmout(struct ci_hdrc *ci)
 {
-	*(int *)indicator = 1;
+	ci->fsm.a_wait_vrise_tmout = 1;
+	return 0;
 }
 
-static void set_tmout_and_fsm(void *ptr, unsigned long indicator)
+static int a_wait_vfall_tmout(struct ci_hdrc *ci)
 {
-	struct ci_hdrc *ci = (struct ci_hdrc *)ptr;
-
-	set_tmout(ci, indicator);
-
-	ci_otg_queue_work(ci);
+	ci->fsm.a_wait_vfall_tmout = 1;
+	return 0;
 }
 
-static void a_wait_vfall_tmout_func(void *ptr, unsigned long indicator)
+static int a_wait_bcon_tmout(struct ci_hdrc *ci)
 {
-	struct ci_hdrc *ci = (struct ci_hdrc *)ptr;
-
-	set_tmout(ci, indicator);
-	/* Disable port power */
-	hw_write(ci, OP_PORTSC, PORTSC_W1C_BITS | PORTSC_PP, 0);
-	/* Clear existing DP irq */
-	hw_write_otgsc(ci, OTGSC_DPIS, OTGSC_DPIS);
-	/* Enable data pulse irq */
-	hw_write_otgsc(ci, OTGSC_DPIE, OTGSC_DPIE);
-	ci_otg_queue_work(ci);
+	ci->fsm.a_wait_bcon_tmout = 1;
+	return 0;
 }
 
-static void b_ase0_brst_tmout_func(void *ptr, unsigned long indicator)
+static int a_aidl_bdis_tmout(struct ci_hdrc *ci)
 {
-	struct ci_hdrc *ci = (struct ci_hdrc *)ptr;
-
-	set_tmout(ci, indicator);
-	if (!hw_read_otgsc(ci, OTGSC_BSV))
-		ci->fsm.b_sess_vld = 0;
-
-	ci_otg_queue_work(ci);
+	ci->fsm.a_aidl_bdis_tmout = 1;
+	return 0;
 }
 
-static void b_ssend_srp_tmout_func(void *ptr, unsigned long indicator)
+static int b_ase0_brst_tmout(struct ci_hdrc *ci)
 {
-	struct ci_hdrc *ci = (struct ci_hdrc *)ptr;
-
-	set_tmout(ci, indicator);
-
-	/* only vbus fall below B_sess_vld in b_idle state */
-	if (ci->fsm.otg->state == OTG_STATE_B_IDLE)
-		ci_otg_queue_work(ci);
+	ci->fsm.b_ase0_brst_tmout = 1;
+	return 0;
 }
 
-static void b_sess_vld_tmout_func(void *ptr, unsigned long indicator)
+static int a_bidl_adis_tmout(struct ci_hdrc *ci)
 {
-	struct ci_hdrc *ci = (struct ci_hdrc *)ptr;
+	ci->fsm.a_bidl_adis_tmout = 1;
+	return 0;
+}
 
-	/* Check if A detached */
-	if (!(hw_read_otgsc(ci, OTGSC_BSV))) {
-		ci->fsm.b_sess_vld = 0;
-		ci_otg_add_timer(ci, B_SSEND_SRP);
-		ci_otg_queue_work(ci);
-	}
+static int b_se0_srp_tmout(struct ci_hdrc *ci)
+{
+	ci->fsm.b_se0_srp = 1;
+	return 0;
 }
 
-static void b_data_pulse_end(void *ptr, unsigned long indicator)
+static int b_srp_fail_tmout(struct ci_hdrc *ci)
 {
-	struct ci_hdrc *ci = (struct ci_hdrc *)ptr;
+	ci->fsm.b_srp_done = 1;
+	return 1;
+}
 
+static int b_data_pls_tmout(struct ci_hdrc *ci)
+{
 	ci->fsm.b_srp_done = 1;
 	ci->fsm.b_bus_req = 0;
 	if (ci->fsm.power_up)
 		ci->fsm.power_up = 0;
-
 	hw_write_otgsc(ci, OTGSC_HABA, 0);
+	pm_runtime_put(ci->dev);
+	return 0;
+}
 
-	ci_otg_queue_work(ci);
+static int b_ssend_srp_tmout(struct ci_hdrc *ci)
+{
+	ci->fsm.b_ssend_srp = 1;
+	/* only vbus fall below B_sess_vld in b_idle state */
+	if (ci->fsm.otg->state == OTG_STATE_B_IDLE)
+		return 0;
+	else
+		return 1;
+}
+
+/*
+ * Keep this list in the same order as timers indexed
+ * by enum otg_fsm_timer in include/linux/usb/otg-fsm.h
+ */
+static int (*otg_timer_handlers[])(struct ci_hdrc *) = {
+	a_wait_vrise_tmout,	/* A_WAIT_VRISE */
+	a_wait_vfall_tmout,	/* A_WAIT_VFALL */
+	a_wait_bcon_tmout,	/* A_WAIT_BCON */
+	a_aidl_bdis_tmout,	/* A_AIDL_BDIS */
+	b_ase0_brst_tmout,	/* B_ASE0_BRST */
+	a_bidl_adis_tmout,	/* A_BIDL_ADIS */
+	b_se0_srp_tmout,	/* B_SE0_SRP */
+	b_srp_fail_tmout,	/* B_SRP_FAIL */
+	NULL,			/* A_WAIT_ENUM */
+	b_data_pls_tmout,	/* B_DATA_PLS */
+	b_ssend_srp_tmout,	/* B_SSEND_SRP */
+};
+
+/*
+ * Enable the next nearest enabled timer if have
+ */
+static enum hrtimer_restart ci_otg_hrtimer_func(struct hrtimer *t)
+{
+	struct ci_hdrc *ci = container_of(t, struct ci_hdrc, otg_fsm_hrtimer);
+	ktime_t	now, *timeout;
+	unsigned long   enabled_timer_bits;
+	unsigned long   flags;
+	enum otg_fsm_timer cur_timer, next_timer = NUM_OTG_FSM_TIMERS;
+	int ret = -EINVAL;
+
+	spin_lock_irqsave(&ci->lock, flags);
+	enabled_timer_bits = ci->enabled_otg_timer_bits;
+	ci->next_otg_timer = NUM_OTG_FSM_TIMERS;
+
+	now = ktime_get();
+	for_each_set_bit(cur_timer, &enabled_timer_bits, NUM_OTG_FSM_TIMERS) {
+		if (now.tv64 >= ci->hr_timeouts[cur_timer].tv64) {
+			ci->enabled_otg_timer_bits &= ~(1 << cur_timer);
+			if (otg_timer_handlers[cur_timer])
+				ret = otg_timer_handlers[cur_timer](ci);
+		} else {
+			if ((next_timer == NUM_OTG_FSM_TIMERS) ||
+				(ci->hr_timeouts[cur_timer].tv64 <
+					ci->hr_timeouts[next_timer].tv64))
+				next_timer = cur_timer;
+		}
+	}
+	/* Enable the next nearest timer */
+	if (next_timer < NUM_OTG_FSM_TIMERS) {
+		timeout = &ci->hr_timeouts[next_timer];
+		hrtimer_start_range_ns(&ci->otg_fsm_hrtimer, *timeout,
+					NSEC_PER_MSEC, HRTIMER_MODE_ABS);
+		ci->next_otg_timer = next_timer;
+	}
+	spin_unlock_irqrestore(&ci->lock, flags);
+
+	if (!ret)
+		ci_otg_queue_work(ci);
+
+	return HRTIMER_NORESTART;
 }
 
 /* Initialize timers */
 static int ci_otg_init_timers(struct ci_hdrc *ci)
 {
-	struct otg_fsm *fsm = &ci->fsm;
-
-	/* FSM used timers */
-	ci->fsm_timer->timer_list[A_WAIT_VRISE] =
-		otg_timer_initializer(ci, &set_tmout_and_fsm, TA_WAIT_VRISE,
-			(unsigned long)&fsm->a_wait_vrise_tmout);
-	if (ci->fsm_timer->timer_list[A_WAIT_VRISE] == NULL)
-		return -ENOMEM;
-
-	ci->fsm_timer->timer_list[A_WAIT_VFALL] =
-		otg_timer_initializer(ci, &a_wait_vfall_tmout_func,
-		TA_WAIT_VFALL, (unsigned long)&fsm->a_wait_vfall_tmout);
-	if (ci->fsm_timer->timer_list[A_WAIT_VFALL] == NULL)
-		return -ENOMEM;
-
-	ci->fsm_timer->timer_list[A_WAIT_BCON] =
-		otg_timer_initializer(ci, &set_tmout_and_fsm, TA_WAIT_BCON,
-				(unsigned long)&fsm->a_wait_bcon_tmout);
-	if (ci->fsm_timer->timer_list[A_WAIT_BCON] == NULL)
-		return -ENOMEM;
-
-	ci->fsm_timer->timer_list[A_AIDL_BDIS] =
-		otg_timer_initializer(ci, &set_tmout_and_fsm, TA_AIDL_BDIS,
-				(unsigned long)&fsm->a_aidl_bdis_tmout);
-	if (ci->fsm_timer->timer_list[A_AIDL_BDIS] == NULL)
-		return -ENOMEM;
-
-	ci->fsm_timer->timer_list[A_BIDL_ADIS] =
-		otg_timer_initializer(ci, &set_tmout_and_fsm, TA_BIDL_ADIS,
-				(unsigned long)&fsm->a_bidl_adis_tmout);
-	if (ci->fsm_timer->timer_list[A_BIDL_ADIS] == NULL)
-		return -ENOMEM;
-
-	ci->fsm_timer->timer_list[B_ASE0_BRST] =
-		otg_timer_initializer(ci, &b_ase0_brst_tmout_func, TB_ASE0_BRST,
-					(unsigned long)&fsm->b_ase0_brst_tmout);
-	if (ci->fsm_timer->timer_list[B_ASE0_BRST] == NULL)
-		return -ENOMEM;
-
-	ci->fsm_timer->timer_list[B_SE0_SRP] =
-		otg_timer_initializer(ci, &set_tmout_and_fsm, TB_SE0_SRP,
-					(unsigned long)&fsm->b_se0_srp);
-	if (ci->fsm_timer->timer_list[B_SE0_SRP] == NULL)
-		return -ENOMEM;
-
-	ci->fsm_timer->timer_list[B_SSEND_SRP] =
-		otg_timer_initializer(ci, &b_ssend_srp_tmout_func, TB_SSEND_SRP,
-					(unsigned long)&fsm->b_ssend_srp);
-	if (ci->fsm_timer->timer_list[B_SSEND_SRP] == NULL)
-		return -ENOMEM;
-
-	ci->fsm_timer->timer_list[B_SRP_FAIL] =
-		otg_timer_initializer(ci, &set_tmout, TB_SRP_FAIL,
-				(unsigned long)&fsm->b_srp_done);
-	if (ci->fsm_timer->timer_list[B_SRP_FAIL] == NULL)
-		return -ENOMEM;
-
-	ci->fsm_timer->timer_list[B_DATA_PLS] =
-		otg_timer_initializer(ci, &b_data_pulse_end, TB_DATA_PLS, 0);
-	if (ci->fsm_timer->timer_list[B_DATA_PLS] == NULL)
-		return -ENOMEM;
-
-	ci->fsm_timer->timer_list[B_SESS_VLD] =	otg_timer_initializer(ci,
-					&b_sess_vld_tmout_func, TB_SESS_VLD, 0);
-	if (ci->fsm_timer->timer_list[B_SESS_VLD] == NULL)
-		return -ENOMEM;
+	hrtimer_init(&ci->otg_fsm_hrtimer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS);
+	ci->otg_fsm_hrtimer.function = ci_otg_hrtimer_func;
 
 	return 0;
 }
@@ -530,6 +512,7 @@ static void ci_otg_start_pulse(struct otg_fsm *fsm)
 	/* Hardware Assistant Data pulse */
 	hw_write_otgsc(ci, OTGSC_HADP, OTGSC_HADP);
 
+	pm_runtime_get(ci->dev);
 	ci_otg_add_timer(ci, B_DATA_PLS);
 }
 
@@ -585,6 +568,7 @@ int ci_otg_fsm_work(struct ci_hdrc *ci)
 		ci->fsm.otg->state < OTG_STATE_A_IDLE)
 		return 0;
 
+	pm_runtime_get_sync(ci->dev);
 	if (otg_statemachine(&ci->fsm)) {
 		if (ci->fsm.otg->state == OTG_STATE_A_IDLE) {
 			/*
@@ -596,8 +580,15 @@ int ci_otg_fsm_work(struct ci_hdrc *ci)
 			 * a_idle to a_wait_vrise when power up
 			 */
 			if ((ci->fsm.id) || (ci->id_event) ||
-						(ci->fsm.power_up))
+						(ci->fsm.power_up)) {
 				ci_otg_queue_work(ci);
+			} else {
+				/* Enable data pulse irq */
+				hw_write(ci, OP_PORTSC, PORTSC_W1C_BITS |
+								PORTSC_PP, 0);
+				hw_write_otgsc(ci, OTGSC_DPIS, OTGSC_DPIS);
+				hw_write_otgsc(ci, OTGSC_DPIE, OTGSC_DPIE);
+			}
 			if (ci->id_event)
 				ci->id_event = false;
 		} else if (ci->fsm.otg->state == OTG_STATE_B_IDLE) {
@@ -609,8 +600,13 @@ int ci_otg_fsm_work(struct ci_hdrc *ci)
 				 */
 				ci_otg_queue_work(ci);
 			}
+		} else if (ci->fsm.otg->state == OTG_STATE_A_HOST) {
+			pm_runtime_mark_last_busy(ci->dev);
+			pm_runtime_put_autosuspend(ci->dev);
+			return 0;
 		}
 	}
+	pm_runtime_put_sync(ci->dev);
 	return 0;
 }
 
@@ -655,7 +651,6 @@ static void ci_otg_fsm_event(struct ci_hdrc *ci)
 			fsm->a_conn = 0;
 			fsm->b_bus_req = 0;
 			ci_otg_queue_work(ci);
-			ci_otg_add_timer(ci, B_SESS_VLD);
 		}
 		break;
 	case OTG_STATE_A_PERIPHERAL:
@@ -725,11 +720,7 @@ irqreturn_t ci_otg_fsm_irq(struct ci_hdrc *ci)
 	fsm->id = (otgsc & OTGSC_ID) ? 1 : 0;
 
 	if (otg_int_src) {
-		if (otg_int_src & OTGSC_1MSIS) {
-			hw_write_otgsc(ci, OTGSC_1MSIS, OTGSC_1MSIS);
-			retval = ci_otg_tick_timer(ci);
-			return IRQ_HANDLED;
-		} else if (otg_int_src & OTGSC_DPIS) {
+		if (otg_int_src & OTGSC_DPIS) {
 			hw_write_otgsc(ci, OTGSC_DPIS, OTGSC_DPIS);
 			fsm->a_srp_det = 1;
 			fsm->a_bus_drop = 0;
@@ -793,17 +784,13 @@ int ci_hdrc_otg_fsm_init(struct ci_hdrc *ci)
 
 	mutex_init(&ci->fsm.lock);
 
-	ci->fsm_timer = devm_kzalloc(ci->dev,
-			sizeof(struct ci_otg_fsm_timer_list), GFP_KERNEL);
-	if (!ci->fsm_timer)
-		return -ENOMEM;
-
-	INIT_LIST_HEAD(&ci->fsm_timer->active_timers);
 	retval = ci_otg_init_timers(ci);
 	if (retval) {
 		dev_err(ci->dev, "Couldn't init OTG timers\n");
 		return retval;
 	}
+	ci->enabled_otg_timer_bits = 0;
+	ci->next_otg_timer = NUM_OTG_FSM_TIMERS;
 
 	retval = sysfs_create_group(&ci->dev->kobj, &inputs_attr_group);
 	if (retval < 0) {
diff --git a/drivers/usb/chipidea/otg_fsm.h b/drivers/usb/chipidea/otg_fsm.h
index 94c085f..2689375 100644
--- a/drivers/usb/chipidea/otg_fsm.h
+++ b/drivers/usb/chipidea/otg_fsm.h
@@ -62,33 +62,6 @@
 /* SSEND time before SRP */
 #define TB_SSEND_SRP         (1500)	/* minimum 1.5 sec, section:5.1.2 */
 
-#define TB_SESS_VLD          (1000)
-
-enum ci_otg_fsm_timer_index {
-	/*
-	 * CI specific timers, start from the end
-	 * of standard and auxiliary OTG timers
-	 */
-	B_DATA_PLS = NUM_OTG_FSM_TIMERS,
-	B_SSEND_SRP,
-	B_SESS_VLD,
-
-	NUM_CI_OTG_FSM_TIMERS,
-};
-
-struct ci_otg_fsm_timer {
-	unsigned long expires;  /* Number of count increase to timeout */
-	unsigned long count;    /* Tick counter */
-	void (*function)(void *, unsigned long);        /* Timeout function */
-	unsigned long data;     /* Data passed to function */
-	struct list_head list;
-};
-
-struct ci_otg_fsm_timer_list {
-	struct ci_otg_fsm_timer *timer_list[NUM_CI_OTG_FSM_TIMERS];
-	struct list_head active_timers;
-};
-
 #ifdef CONFIG_USB_OTG_FSM
 
 int ci_hdrc_otg_fsm_init(struct ci_hdrc *ci);
diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c
index ff45104..764f668 100644
--- a/drivers/usb/chipidea/udc.c
+++ b/drivers/usb/chipidea/udc.c
@@ -86,10 +86,8 @@ static int hw_device_state(struct ci_hdrc *ci, u32 dma)
 		/* interrupt, error, port change, reset, sleep/suspend */
 		hw_write(ci, OP_USBINTR, ~0,
 			     USBi_UI|USBi_UEI|USBi_PCI|USBi_URI|USBi_SLI);
-		hw_write(ci, OP_USBCMD, USBCMD_RS, USBCMD_RS);
 	} else {
 		hw_write(ci, OP_USBINTR, ~0, 0);
-		hw_write(ci, OP_USBCMD, USBCMD_RS, 0);
 	}
 	return 0;
 }
@@ -522,6 +520,20 @@ static void free_pending_td(struct ci_hw_ep *hwep)
 	kfree(pending);
 }
 
+static int reprime_dtd(struct ci_hdrc *ci, struct ci_hw_ep *hwep,
+					   struct td_node *node)
+{
+	hwep->qh.ptr->td.next = node->dma;
+	hwep->qh.ptr->td.token &=
+		cpu_to_le32(~(TD_STATUS_HALTED | TD_STATUS_ACTIVE));
+
+	/* Synchronize before ep prime */
+	wmb();
+
+	return hw_ep_prime(ci, hwep->num, hwep->dir,
+				hwep->type == USB_ENDPOINT_XFER_CONTROL);
+}
+
 /**
  * _hardware_dequeue: handles a request at hardware level
  * @gadget: gadget
@@ -535,6 +547,7 @@ static int _hardware_dequeue(struct ci_hw_ep *hwep, struct ci_hw_req *hwreq)
 	struct td_node *node, *tmpnode;
 	unsigned remaining_length;
 	unsigned actual = hwreq->req.length;
+	struct ci_hdrc *ci = hwep->ci;
 
 	if (hwreq->req.status != -EALREADY)
 		return -EINVAL;
@@ -544,6 +557,11 @@ static int _hardware_dequeue(struct ci_hw_ep *hwep, struct ci_hw_req *hwreq)
 	list_for_each_entry_safe(node, tmpnode, &hwreq->tds, td) {
 		tmptoken = le32_to_cpu(node->ptr->token);
 		if ((TD_STATUS_ACTIVE & tmptoken) != 0) {
+			int n = hw_ep_bit(hwep->num, hwep->dir);
+
+			if (ci->rev == CI_REVISION_24)
+				if (!hw_read(ci, OP_ENDPTSTAT, BIT(n)))
+					reprime_dtd(ci, hwep, node);
 			hwreq->req.status = -EALREADY;
 			return -EBUSY;
 		}
@@ -929,6 +947,13 @@ __acquires(hwep->lock)
 	return retval;
 }
 
+static int otg_a_alt_hnp_support(struct ci_hdrc *ci)
+{
+	dev_warn(&ci->gadget.dev,
+		"connect the device to an alternate port if you want HNP\n");
+	return isr_setup_status_phase(ci);
+}
+
 /**
  * isr_setup_packet_handler: setup packet handler
  * @ci: UDC descriptor
@@ -1061,6 +1086,10 @@ __acquires(ci->lock)
 							ci);
 				}
 				break;
+			case USB_DEVICE_A_ALT_HNP_SUPPORT:
+				if (ci_otg_is_fsm_mode(ci))
+					err = otg_a_alt_hnp_support(ci);
+				break;
 			default:
 				goto delegate;
 			}
@@ -1151,10 +1180,13 @@ static int ep_enable(struct usb_ep *ep,
 
 	/* only internal SW should enable ctrl endpts */
 
-	hwep->ep.desc = desc;
-
-	if (!list_empty(&hwep->qh.queue))
+	if (!list_empty(&hwep->qh.queue)) {
 		dev_warn(hwep->ci->dev, "enabling a non-empty endpoint!\n");
+		spin_unlock_irqrestore(hwep->lock, flags);
+		return -EBUSY;
+	}
+
+	hwep->ep.desc = desc;
 
 	hwep->dir  = usb_endpoint_dir_in(desc) ? TX : RX;
 	hwep->num  = usb_endpoint_num(desc);
@@ -1474,7 +1506,9 @@ static int ci_udc_vbus_session(struct usb_gadget *_gadget, int is_active)
 			hw_device_reset(ci);
 			hw_device_state(ci, ci->ep0out->qh.dma);
 			usb_gadget_set_state(_gadget, USB_STATE_POWERED);
+			usb_udc_vbus_handler(_gadget, true);
 		} else {
+			usb_udc_vbus_handler(_gadget, false);
 			if (ci->driver)
 				ci->driver->disconnect(&ci->gadget);
 			hw_device_state(ci, 0);
@@ -1540,13 +1574,16 @@ static int ci_udc_pullup(struct usb_gadget *_gadget, int is_on)
 {
 	struct ci_hdrc *ci = container_of(_gadget, struct ci_hdrc, gadget);
 
-	if (!ci->vbus_active)
-		return -EOPNOTSUPP;
+	/* Data+ pullup controlled by OTG state machine in OTG fsm mode */
+	if (ci_otg_is_fsm_mode(ci))
+		return 0;
 
+	pm_runtime_get_sync(&ci->gadget.dev);
 	if (is_on)
 		hw_write(ci, OP_USBCMD, USBCMD_RS, USBCMD_RS);
 	else
 		hw_write(ci, OP_USBCMD, USBCMD_RS, 0);
+	pm_runtime_put_sync(&ci->gadget.dev);
 
 	return 0;
 }
@@ -1676,6 +1713,7 @@ static int ci_udc_start(struct usb_gadget *gadget,
 		spin_lock_irqsave(&ci->lock, flags);
 		hw_device_reset(ci);
 	} else {
+		usb_udc_vbus_handler(&ci->gadget, false);
 		pm_runtime_put_sync(&ci->gadget.dev);
 		return retval;
 	}
diff --git a/drivers/usb/chipidea/usbmisc_imx.c b/drivers/usb/chipidea/usbmisc_imx.c
index c3c6225..140945c 100644
--- a/drivers/usb/chipidea/usbmisc_imx.c
+++ b/drivers/usb/chipidea/usbmisc_imx.c
@@ -11,7 +11,6 @@
 
 #include <linux/module.h>
 #include <linux/of_platform.h>
-#include <linux/clk.h>
 #include <linux/err.h>
 #include <linux/io.h>
 #include <linux/delay.h>
@@ -56,6 +55,19 @@
 #define MX53_USB_PLL_DIV_24_MHZ		0x01
 
 #define MX6_BM_OVER_CUR_DIS		BIT(7)
+#define MX6_BM_WAKEUP_ENABLE		BIT(10)
+#define MX6_BM_ID_WAKEUP		BIT(16)
+#define MX6_BM_VBUS_WAKEUP		BIT(17)
+#define MX6SX_BM_DPDM_WAKEUP_EN		BIT(29)
+#define MX6_BM_WAKEUP_INTR		BIT(31)
+#define MX6_USB_OTG1_PHY_CTRL		0x18
+/* For imx6dql, it is host-only controller, for later imx6, it is otg's */
+#define MX6_USB_OTG2_PHY_CTRL		0x1c
+#define MX6SX_USB_VBUS_WAKEUP_SOURCE(v)	(v << 8)
+#define MX6SX_USB_VBUS_WAKEUP_SOURCE_VBUS	MX6SX_USB_VBUS_WAKEUP_SOURCE(0)
+#define MX6SX_USB_VBUS_WAKEUP_SOURCE_AVALID	MX6SX_USB_VBUS_WAKEUP_SOURCE(1)
+#define MX6SX_USB_VBUS_WAKEUP_SOURCE_BVALID	MX6SX_USB_VBUS_WAKEUP_SOURCE(2)
+#define MX6SX_USB_VBUS_WAKEUP_SOURCE_SESS_END	MX6SX_USB_VBUS_WAKEUP_SOURCE(3)
 
 #define VF610_OVER_CUR_DIS		BIT(7)
 
@@ -64,12 +76,13 @@ struct usbmisc_ops {
 	int (*init)(struct imx_usbmisc_data *data);
 	/* It's called once after adding a usb device */
 	int (*post)(struct imx_usbmisc_data *data);
+	/* It's called when we need to enable/disable usb wakeup */
+	int (*set_wakeup)(struct imx_usbmisc_data *data, bool enabled);
 };
 
 struct imx_usbmisc {
 	void __iomem *base;
 	spinlock_t lock;
-	struct clk *clk;
 	const struct usbmisc_ops *ops;
 };
 
@@ -204,6 +217,35 @@ static int usbmisc_imx53_init(struct imx_usbmisc_data *data)
 	return 0;
 }
 
+static int usbmisc_imx6q_set_wakeup
+	(struct imx_usbmisc_data *data, bool enabled)
+{
+	struct imx_usbmisc *usbmisc = dev_get_drvdata(data->dev);
+	unsigned long flags;
+	u32 val;
+	u32 wakeup_setting = (MX6_BM_WAKEUP_ENABLE |
+		MX6_BM_VBUS_WAKEUP | MX6_BM_ID_WAKEUP);
+	int ret = 0;
+
+	if (data->index > 3)
+		return -EINVAL;
+
+	spin_lock_irqsave(&usbmisc->lock, flags);
+	val = readl(usbmisc->base + data->index * 4);
+	if (enabled) {
+		val |= wakeup_setting;
+		writel(val, usbmisc->base + data->index * 4);
+	} else {
+		if (val & MX6_BM_WAKEUP_INTR)
+			pr_debug("wakeup int at ci_hdrc.%d\n", data->index);
+		val &= ~wakeup_setting;
+		writel(val, usbmisc->base + data->index * 4);
+	}
+	spin_unlock_irqrestore(&usbmisc->lock, flags);
+
+	return ret;
+}
+
 static int usbmisc_imx6q_init(struct imx_usbmisc_data *data)
 {
 	struct imx_usbmisc *usbmisc = dev_get_drvdata(data->dev);
@@ -221,6 +263,36 @@ static int usbmisc_imx6q_init(struct imx_usbmisc_data *data)
 		spin_unlock_irqrestore(&usbmisc->lock, flags);
 	}
 
+	usbmisc_imx6q_set_wakeup(data, false);
+
+	return 0;
+}
+
+static int usbmisc_imx6sx_init(struct imx_usbmisc_data *data)
+{
+	void __iomem *reg = NULL;
+	unsigned long flags;
+	struct imx_usbmisc *usbmisc = dev_get_drvdata(data->dev);
+	u32 val;
+
+	usbmisc_imx6q_init(data);
+
+	if (data->index == 0 || data->index == 1) {
+		reg = usbmisc->base + MX6_USB_OTG1_PHY_CTRL + data->index * 4;
+		spin_lock_irqsave(&usbmisc->lock, flags);
+		/* Set vbus wakeup source as bvalid */
+		val = readl(reg);
+		writel(val | MX6SX_USB_VBUS_WAKEUP_SOURCE_BVALID, reg);
+		/*
+		 * Disable dp/dm wakeup in device mode when vbus is
+		 * not there.
+		 */
+		val = readl(usbmisc->base + data->index * 4);
+		writel(val & ~MX6SX_BM_DPDM_WAKEUP_EN,
+			usbmisc->base + data->index * 4);
+		spin_unlock_irqrestore(&usbmisc->lock, flags);
+	}
+
 	return 0;
 }
 
@@ -258,6 +330,7 @@ static const struct usbmisc_ops imx53_usbmisc_ops = {
 };
 
 static const struct usbmisc_ops imx6q_usbmisc_ops = {
+	.set_wakeup = usbmisc_imx6q_set_wakeup,
 	.init = usbmisc_imx6q_init,
 };
 
@@ -265,10 +338,19 @@ static const struct usbmisc_ops vf610_usbmisc_ops = {
 	.init = usbmisc_vf610_init,
 };
 
+static const struct usbmisc_ops imx6sx_usbmisc_ops = {
+	.set_wakeup = usbmisc_imx6q_set_wakeup,
+	.init = usbmisc_imx6sx_init,
+};
+
 int imx_usbmisc_init(struct imx_usbmisc_data *data)
 {
-	struct imx_usbmisc *usbmisc = dev_get_drvdata(data->dev);
+	struct imx_usbmisc *usbmisc;
+
+	if (!data)
+		return 0;
 
+	usbmisc = dev_get_drvdata(data->dev);
 	if (!usbmisc->ops->init)
 		return 0;
 	return usbmisc->ops->init(data);
@@ -277,14 +359,32 @@ EXPORT_SYMBOL_GPL(imx_usbmisc_init);
 
 int imx_usbmisc_init_post(struct imx_usbmisc_data *data)
 {
-	struct imx_usbmisc *usbmisc = dev_get_drvdata(data->dev);
+	struct imx_usbmisc *usbmisc;
 
+	if (!data)
+		return 0;
+
+	usbmisc = dev_get_drvdata(data->dev);
 	if (!usbmisc->ops->post)
 		return 0;
 	return usbmisc->ops->post(data);
 }
 EXPORT_SYMBOL_GPL(imx_usbmisc_init_post);
 
+int imx_usbmisc_set_wakeup(struct imx_usbmisc_data *data, bool enabled)
+{
+	struct imx_usbmisc *usbmisc;
+
+	if (!data)
+		return 0;
+
+	usbmisc = dev_get_drvdata(data->dev);
+	if (!usbmisc->ops->set_wakeup)
+		return 0;
+	return usbmisc->ops->set_wakeup(data, enabled);
+}
+EXPORT_SYMBOL_GPL(imx_usbmisc_set_wakeup);
+
 static const struct of_device_id usbmisc_imx_dt_ids[] = {
 	{
 		.compatible = "fsl,imx25-usbmisc",
@@ -314,6 +414,10 @@ static const struct of_device_id usbmisc_imx_dt_ids[] = {
 		.compatible = "fsl,vf610-usbmisc",
 		.data = &vf610_usbmisc_ops,
 	},
+	{
+		.compatible = "fsl,imx6sx-usbmisc",
+		.data = &imx6sx_usbmisc_ops,
+	},
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, usbmisc_imx_dt_ids);
@@ -322,7 +426,6 @@ static int usbmisc_imx_probe(struct platform_device *pdev)
 {
 	struct resource	*res;
 	struct imx_usbmisc *data;
-	int ret;
 	struct of_device_id *tmp_dev;
 
 	data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
@@ -336,20 +439,6 @@ static int usbmisc_imx_probe(struct platform_device *pdev)
 	if (IS_ERR(data->base))
 		return PTR_ERR(data->base);
 
-	data->clk = devm_clk_get(&pdev->dev, NULL);
-	if (IS_ERR(data->clk)) {
-		dev_err(&pdev->dev,
-			"failed to get clock, err=%ld\n", PTR_ERR(data->clk));
-		return PTR_ERR(data->clk);
-	}
-
-	ret = clk_prepare_enable(data->clk);
-	if (ret) {
-		dev_err(&pdev->dev,
-			"clk_prepare_enable failed, err=%d\n", ret);
-		return ret;
-	}
-
 	tmp_dev = (struct of_device_id *)
 		of_match_device(usbmisc_imx_dt_ids, &pdev->dev);
 	data->ops = (const struct usbmisc_ops *)tmp_dev->data;
@@ -360,8 +449,6 @@ static int usbmisc_imx_probe(struct platform_device *pdev)
 
 static int usbmisc_imx_remove(struct platform_device *pdev)
 {
-	struct imx_usbmisc *usbmisc = dev_get_drvdata(&pdev->dev);
-	clk_disable_unprepare(usbmisc->clk);
 	return 0;
 }
 
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index e78720b..3e15add 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -360,7 +360,7 @@ static void acm_ctrl_irq(struct urb *urb)
 	}
 exit:
 	retval = usb_submit_urb(urb, GFP_ATOMIC);
-	if (retval)
+	if (retval && retval != -EPERM)
 		dev_err(&acm->control->dev, "%s - usb_submit_urb failed: %d\n",
 							__func__, retval);
 }
@@ -417,25 +417,33 @@ static void acm_read_bulk_callback(struct urb *urb)
 	struct acm_rb *rb = urb->context;
 	struct acm *acm = rb->instance;
 	unsigned long flags;
+	int status = urb->status;
 
 	dev_vdbg(&acm->data->dev, "%s - urb %d, len %d\n", __func__,
 					rb->index, urb->actual_length);
-	set_bit(rb->index, &acm->read_urbs_free);
 
 	if (!acm->dev) {
+		set_bit(rb->index, &acm->read_urbs_free);
 		dev_dbg(&acm->data->dev, "%s - disconnected\n", __func__);
 		return;
 	}
 
-	if (urb->status) {
+	if (status) {
+		set_bit(rb->index, &acm->read_urbs_free);
 		dev_dbg(&acm->data->dev, "%s - non-zero urb status: %d\n",
-							__func__, urb->status);
+							__func__, status);
 		return;
 	}
 
 	usb_mark_last_busy(acm->dev);
 
 	acm_process_read_urb(acm, urb);
+	/*
+	 * Unthrottle may run on another CPU which needs to see events
+	 * in the same order. Submission has an implict barrier
+	 */
+	smp_mb__before_atomic();
+	set_bit(rb->index, &acm->read_urbs_free);
 
 	/* throttle device if requested by tty */
 	spin_lock_irqsave(&acm->read_lock, flags);
@@ -454,13 +462,14 @@ static void acm_write_bulk(struct urb *urb)
 	struct acm_wb *wb = urb->context;
 	struct acm *acm = wb->instance;
 	unsigned long flags;
+	int status = urb->status;
 
-	if (urb->status	|| (urb->actual_length != urb->transfer_buffer_length))
+	if (status || (urb->actual_length != urb->transfer_buffer_length))
 		dev_vdbg(&acm->data->dev, "%s - len %d/%d, status %d\n",
 			__func__,
 			urb->actual_length,
 			urb->transfer_buffer_length,
-			urb->status);
+			status);
 
 	spin_lock_irqsave(&acm->write_lock, flags);
 	acm_write_done(acm, wb);
@@ -1650,6 +1659,8 @@ static int acm_reset_resume(struct usb_interface *intf)
 
 static const struct usb_device_id acm_ids[] = {
 	/* quirky and broken devices */
+	{ USB_DEVICE(0x076d, 0x0006), /* Denso Cradle CU-321 */
+	.driver_info = NO_UNION_NORMAL, },/* has no union descriptor */
 	{ USB_DEVICE(0x17ef, 0x7000), /* Lenovo USB modem */
 	.driver_info = NO_UNION_NORMAL, },/* has no union descriptor */
 	{ USB_DEVICE(0x0870, 0x0001), /* Metricom GS Modem */
diff --git a/drivers/usb/class/cdc-wdm.c b/drivers/usb/class/cdc-wdm.c
index a051a7a..61ea879 100644
--- a/drivers/usb/class/cdc-wdm.c
+++ b/drivers/usb/class/cdc-wdm.c
@@ -245,7 +245,7 @@ static void wdm_int_callback(struct urb *urb)
 	case USB_CDC_NOTIFY_RESPONSE_AVAILABLE:
 		dev_dbg(&desc->intf->dev,
 			"NOTIFY_RESPONSE_AVAILABLE received: index %d len %d",
-			dr->wIndex, dr->wLength);
+			le16_to_cpu(dr->wIndex), le16_to_cpu(dr->wLength));
 		break;
 
 	case USB_CDC_NOTIFY_NETWORK_CONNECTION:
@@ -262,7 +262,9 @@ static void wdm_int_callback(struct urb *urb)
 		clear_bit(WDM_POLL_RUNNING, &desc->flags);
 		dev_err(&desc->intf->dev,
 			"unknown notification %d received: index %d len %d\n",
-			dr->bNotificationType, dr->wIndex, dr->wLength);
+			dr->bNotificationType,
+			le16_to_cpu(dr->wIndex),
+			le16_to_cpu(dr->wLength));
 		goto exit;
 	}
 
@@ -339,7 +341,7 @@ static ssize_t wdm_write
 	desc->werr = 0;
 	spin_unlock_irq(&desc->iuspin);
 	if (we < 0)
-		return -EIO;
+		return usb_translate_errors(we);
 
 	buf = kmalloc(count, GFP_KERNEL);
 	if (!buf) {
@@ -349,30 +351,25 @@ static ssize_t wdm_write
 
 	r = copy_from_user(buf, buffer, count);
 	if (r > 0) {
-		kfree(buf);
 		rv = -EFAULT;
-		goto outnl;
+		goto out_free_mem;
 	}
 
 	/* concurrent writes and disconnect */
 	r = mutex_lock_interruptible(&desc->wlock);
 	rv = -ERESTARTSYS;
-	if (r) {
-		kfree(buf);
-		goto outnl;
-	}
+	if (r)
+		goto out_free_mem;
 
 	if (test_bit(WDM_DISCONNECTING, &desc->flags)) {
-		kfree(buf);
 		rv = -ENODEV;
-		goto outnp;
+		goto out_free_mem_lock;
 	}
 
 	r = usb_autopm_get_interface(desc->intf);
 	if (r < 0) {
-		kfree(buf);
 		rv = usb_translate_errors(r);
-		goto outnp;
+		goto out_free_mem_lock;
 	}
 
 	if (!(file->f_flags & O_NONBLOCK))
@@ -386,9 +383,8 @@ static ssize_t wdm_write
 		r = -EIO;
 
 	if (r < 0) {
-		kfree(buf);
 		rv = r;
-		goto out;
+		goto out_free_mem_pm;
 	}
 
 	req = desc->orq;
@@ -408,28 +404,35 @@ static ssize_t wdm_write
 			     USB_RECIP_INTERFACE);
 	req->bRequest = USB_CDC_SEND_ENCAPSULATED_COMMAND;
 	req->wValue = 0;
-	req->wIndex = desc->inum;
+	req->wIndex = desc->inum; /* already converted */
 	req->wLength = cpu_to_le16(count);
 	set_bit(WDM_IN_USE, &desc->flags);
 	desc->outbuf = buf;
 
 	rv = usb_submit_urb(desc->command, GFP_KERNEL);
 	if (rv < 0) {
-		kfree(buf);
 		desc->outbuf = NULL;
 		clear_bit(WDM_IN_USE, &desc->flags);
 		dev_err(&desc->intf->dev, "Tx URB error: %d\n", rv);
 		rv = usb_translate_errors(rv);
+		goto out_free_mem_pm;
 	} else {
 		dev_dbg(&desc->intf->dev, "Tx URB has been submitted index=%d",
-			req->wIndex);
+			le16_to_cpu(req->wIndex));
 	}
-out:
+
 	usb_autopm_put_interface(desc->intf);
-outnp:
 	mutex_unlock(&desc->wlock);
 outnl:
 	return rv < 0 ? rv : count;
+
+out_free_mem_pm:
+	usb_autopm_put_interface(desc->intf);
+out_free_mem_lock:
+	mutex_unlock(&desc->wlock);
+out_free_mem:
+	kfree(buf);
+	return rv;
 }
 
 /*
@@ -519,9 +522,9 @@ retry:
 		spin_lock_irq(&desc->iuspin);
 
 		if (desc->rerr) { /* read completed, error happened */
+			rv = usb_translate_errors(desc->rerr);
 			desc->rerr = 0;
 			spin_unlock_irq(&desc->iuspin);
-			rv = -EIO;
 			goto err;
 		}
 		/*
@@ -820,7 +823,7 @@ static int wdm_create(struct usb_interface *intf, struct usb_endpoint_descriptor
 	desc->irq->bRequestType = (USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE);
 	desc->irq->bRequest = USB_CDC_GET_ENCAPSULATED_RESPONSE;
 	desc->irq->wValue = 0;
-	desc->irq->wIndex = desc->inum;
+	desc->irq->wIndex = desc->inum; /* already converted */
 	desc->irq->wLength = cpu_to_le16(desc->wMaxCommand);
 
 	usb_fill_control_urb(
diff --git a/drivers/usb/common/usb-otg-fsm.c b/drivers/usb/common/usb-otg-fsm.c
index c6b35b7..61d538a 100644
--- a/drivers/usb/common/usb-otg-fsm.c
+++ b/drivers/usb/common/usb-otg-fsm.c
@@ -150,9 +150,9 @@ static int otg_set_state(struct otg_fsm *fsm, enum usb_otg_state new_state)
 		break;
 	case OTG_STATE_B_PERIPHERAL:
 		otg_chrg_vbus(fsm, 0);
-		otg_loc_conn(fsm, 1);
 		otg_loc_sof(fsm, 0);
 		otg_set_protocol(fsm, PROTO_GADGET);
+		otg_loc_conn(fsm, 1);
 		break;
 	case OTG_STATE_B_WAIT_ACON:
 		otg_chrg_vbus(fsm, 0);
@@ -213,10 +213,10 @@ static int otg_set_state(struct otg_fsm *fsm, enum usb_otg_state new_state)
 
 		break;
 	case OTG_STATE_A_PERIPHERAL:
-		otg_loc_conn(fsm, 1);
 		otg_loc_sof(fsm, 0);
 		otg_set_protocol(fsm, PROTO_GADGET);
 		otg_drv_vbus(fsm, 1);
+		otg_loc_conn(fsm, 1);
 		otg_add_timer(fsm, A_BIDL_ADIS);
 		break;
 	case OTG_STATE_A_WAIT_VFALL:
diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c
index 66abdbc..4b0448c 100644
--- a/drivers/usb/core/devio.c
+++ b/drivers/usb/core/devio.c
@@ -501,6 +501,7 @@ static void async_completed(struct urb *urb)
 	as->status = urb->status;
 	signr = as->signr;
 	if (signr) {
+		memset(&sinfo, 0, sizeof(sinfo));
 		sinfo.si_signo = as->signr;
 		sinfo.si_errno = as->status;
 		sinfo.si_code = SI_ASYNCIO;
@@ -2382,6 +2383,7 @@ static void usbdev_remove(struct usb_device *udev)
 		wake_up_all(&ps->wait);
 		list_del_init(&ps->list);
 		if (ps->discsignr) {
+			memset(&sinfo, 0, sizeof(sinfo));
 			sinfo.si_signo = ps->discsignr;
 			sinfo.si_errno = EPIPE;
 			sinfo.si_code = SI_ASYNCIO;
@@ -2406,7 +2408,7 @@ static int usbdev_notify(struct notifier_block *self,
 }
 
 static struct notifier_block usbdev_nb = {
-	.notifier_call = 	usbdev_notify,
+	.notifier_call =	usbdev_notify,
 };
 
 static struct cdev usb_device_cdev;
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index d7c3d5a..3b71516 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -3406,10 +3406,10 @@ int usb_port_resume(struct usb_device *udev, pm_message_t msg)
 	if (status) {
 		dev_dbg(&port_dev->dev, "can't resume, status %d\n", status);
 	} else {
-		/* drive resume for at least 20 msec */
+		/* drive resume for USB_RESUME_TIMEOUT msec */
 		dev_dbg(&udev->dev, "usb %sresume\n",
 				(PMSG_IS_AUTO(msg) ? "auto-" : ""));
-		msleep(25);
+		msleep(USB_RESUME_TIMEOUT);
 
 		/* Virtual root hubs can trigger on GET_PORT_STATUS to
 		 * stop resume signaling.  Then finish the resume
diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c
index b1fb9ae..8d5b2f4 100644
--- a/drivers/usb/core/usb.c
+++ b/drivers/usb/core/usb.c
@@ -49,6 +49,22 @@ const char *usbcore_name = "usbcore";
 
 static bool nousb;	/* Disable USB when built into kernel image */
 
+/* To disable USB, kernel command line is 'nousb' not 'usbcore.nousb' */
+#ifdef MODULE
+module_param(nousb, bool, 0444);
+#else
+core_param(nousb, nousb, bool, 0444);
+#endif
+
+/*
+ * for external read access to <nousb>
+ */
+int usb_disabled(void)
+{
+	return nousb;
+}
+EXPORT_SYMBOL_GPL(usb_disabled);
+
 #ifdef	CONFIG_PM
 static int usb_autosuspend_delay = 2;		/* Default delay value,
 						 * in seconds */
@@ -964,22 +980,6 @@ void usb_buffer_unmap_sg(const struct usb_device *dev, int is_in,
 EXPORT_SYMBOL_GPL(usb_buffer_unmap_sg);
 #endif
 
-/* To disable USB, kernel command line is 'nousb' not 'usbcore.nousb' */
-#ifdef MODULE
-module_param(nousb, bool, 0444);
-#else
-core_param(nousb, nousb, bool, 0444);
-#endif
-
-/*
- * for external read access to <nousb>
- */
-int usb_disabled(void)
-{
-	return nousb;
-}
-EXPORT_SYMBOL_GPL(usb_disabled);
-
 /*
  * Notifications of device and interface registration
  */
@@ -1045,7 +1045,7 @@ static void usb_debugfs_cleanup(void)
 static int __init usb_init(void)
 {
 	int retval;
-	if (nousb) {
+	if (usb_disabled()) {
 		pr_info("%s: USB support disabled\n", usbcore_name);
 		return 0;
 	}
@@ -1102,7 +1102,7 @@ out:
 static void __exit usb_exit(void)
 {
 	/* This will matter if shutdown/reboot does exitcalls. */
-	if (nousb)
+	if (usb_disabled())
 		return;
 
 	usb_deregister_device_driver(&usb_generic_driver);
diff --git a/drivers/usb/dwc2/Kconfig b/drivers/usb/dwc2/Kconfig
index 76b9ba4..1bcb36a 100644
--- a/drivers/usb/dwc2/Kconfig
+++ b/drivers/usb/dwc2/Kconfig
@@ -59,11 +59,13 @@ config USB_DWC2_PLATFORM
 
 config USB_DWC2_PCI
 	tristate "DWC2 PCI"
-	depends on USB_DWC2_HOST && PCI
-	default USB_DWC2_HOST
+	depends on PCI
+	default n
+	select USB_DWC2_PLATFORM
+	select NOP_USB_XCEIV
 	help
 	  The Designware USB2.0 PCI interface module for controllers
-	  connected to a PCI bus. This is only used for host mode.
+	  connected to a PCI bus.
 
 config USB_DWC2_DEBUG
 	bool "Enable Debugging Messages"
diff --git a/drivers/usb/dwc2/Makefile b/drivers/usb/dwc2/Makefile
index 8f75267..f07b425 100644
--- a/drivers/usb/dwc2/Makefile
+++ b/drivers/usb/dwc2/Makefile
@@ -19,10 +19,8 @@ endif
 # mode. The PCI bus interface module will called dwc2_pci.ko and the platform
 # interface module will be called dwc2_platform.ko.
 
-ifneq ($(CONFIG_USB_DWC2_PCI),)
-	obj-$(CONFIG_USB_DWC2)		+= dwc2_pci.o
-	dwc2_pci-y			:= pci.o
-endif
+obj-$(CONFIG_USB_DWC2_PCI)		+= dwc2_pci.o
+dwc2_pci-y				:= pci.o
 
 obj-$(CONFIG_USB_DWC2_PLATFORM)		+= dwc2_platform.o
 dwc2_platform-y				:= platform.o
diff --git a/drivers/usb/dwc2/core.h b/drivers/usb/dwc2/core.h
index f74304b..836c012 100644
--- a/drivers/usb/dwc2/core.h
+++ b/drivers/usb/dwc2/core.h
@@ -593,6 +593,8 @@ struct dwc2_hsotg {
 	struct dwc2_core_params *core_params;
 	enum usb_otg_state op_state;
 	enum usb_dr_mode dr_mode;
+	unsigned int hcd_enabled:1;
+	unsigned int gadget_enabled:1;
 
 	struct phy *phy;
 	struct usb_phy *uphy;
diff --git a/drivers/usb/dwc2/core_intr.c b/drivers/usb/dwc2/core_intr.c
index 02e3e2d..6cf0478 100644
--- a/drivers/usb/dwc2/core_intr.c
+++ b/drivers/usb/dwc2/core_intr.c
@@ -377,6 +377,9 @@ static void dwc2_handle_disconnect_intr(struct dwc2_hsotg *hsotg)
 		dwc2_is_host_mode(hsotg) ? "Host" : "Device",
 		dwc2_op_state_str(hsotg));
 
+	if (hsotg->op_state == OTG_STATE_A_HOST)
+		dwc2_hcd_disconnect(hsotg);
+
 	/* Change to L3 (OFF) state */
 	hsotg->lx_state = DWC2_L3;
 
diff --git a/drivers/usb/dwc2/hcd.c b/drivers/usb/dwc2/hcd.c
index c78c874..fbbbac2 100644
--- a/drivers/usb/dwc2/hcd.c
+++ b/drivers/usb/dwc2/hcd.c
@@ -257,6 +257,14 @@ static void dwc2_hcd_cleanup_channels(struct dwc2_hsotg *hsotg)
 		 */
 		channel->qh = NULL;
 	}
+	/* All channels have been freed, mark them available */
+	if (hsotg->core_params->uframe_sched > 0) {
+		hsotg->available_host_channels =
+			hsotg->core_params->host_channels;
+	} else {
+		hsotg->non_periodic_channels = 0;
+		hsotg->periodic_channels = 0;
+	}
 }
 
 /**
@@ -1527,7 +1535,7 @@ static int dwc2_hcd_hub_control(struct dwc2_hsotg *hsotg, u16 typereq,
 			hprt0 |= HPRT0_RES;
 			writel(hprt0, hsotg->regs + HPRT0);
 			hprt0 &= ~HPRT0_SUSP;
-			usleep_range(100000, 150000);
+			msleep(USB_RESUME_TIMEOUT);
 
 			hprt0 &= ~HPRT0_RES;
 			writel(hprt0, hsotg->regs + HPRT0);
@@ -1608,7 +1616,7 @@ static int dwc2_hcd_hub_control(struct dwc2_hsotg *hsotg, u16 typereq,
 		dev_dbg(hsotg->dev, "GetHubDescriptor\n");
 		hub_desc = (struct usb_hub_descriptor *)buf;
 		hub_desc->bDescLength = 9;
-		hub_desc->bDescriptorType = 0x29;
+		hub_desc->bDescriptorType = USB_DT_HUB;
 		hub_desc->bNbrPorts = 1;
 		hub_desc->wHubCharacteristics =
 			cpu_to_le16(HUB_CHAR_COMMON_LPSM |
diff --git a/drivers/usb/dwc2/pci.c b/drivers/usb/dwc2/pci.c
index a4e724b..ae41961 100644
--- a/drivers/usb/dwc2/pci.c
+++ b/drivers/usb/dwc2/pci.c
@@ -50,113 +50,97 @@
 
 #include <linux/usb/hcd.h>
 #include <linux/usb/ch11.h>
+#include <linux/platform_device.h>
+#include <linux/usb/usb_phy_generic.h>
 
-#include "core.h"
-#include "hcd.h"
-
-#define PCI_VENDOR_ID_SYNOPSYS		0x16c3
 #define PCI_PRODUCT_ID_HAPS_HSOTG	0xabc0
 
-static const char dwc2_driver_name[] = "dwc2";
-
-static const struct dwc2_core_params dwc2_module_params = {
-	.otg_cap			= -1,
-	.otg_ver			= -1,
-	.dma_enable			= -1,
-	.dma_desc_enable		= 0,
-	.speed				= -1,
-	.enable_dynamic_fifo		= -1,
-	.en_multiple_tx_fifo		= -1,
-	.host_rx_fifo_size		= 1024,
-	.host_nperio_tx_fifo_size	= 256,
-	.host_perio_tx_fifo_size	= 1024,
-	.max_transfer_size		= 65535,
-	.max_packet_count		= 511,
-	.host_channels			= -1,
-	.phy_type			= -1,
-	.phy_utmi_width			= -1,
-	.phy_ulpi_ddr			= -1,
-	.phy_ulpi_ext_vbus		= -1,
-	.i2c_enable			= -1,
-	.ulpi_fs_ls			= -1,
-	.host_support_fs_ls_low_power	= -1,
-	.host_ls_low_power_phy_clk	= -1,
-	.ts_dline			= -1,
-	.reload_ctl			= -1,
-	.ahbcfg				= -1,
-	.uframe_sched			= -1,
+static const char dwc2_driver_name[] = "dwc2-pci";
+
+struct dwc2_pci_glue {
+	struct platform_device *dwc2;
+	struct platform_device *phy;
 };
 
-/**
- * dwc2_driver_remove() - Called when the DWC_otg core is unregistered with the
- * DWC_otg driver
- *
- * @dev: Bus device
- *
- * This routine is called, for example, when the rmmod command is executed. The
- * device may or may not be electrically present. If it is present, the driver
- * stops device processing. Any resources used on behalf of this device are
- * freed.
- */
-static void dwc2_driver_remove(struct pci_dev *dev)
+static void dwc2_pci_remove(struct pci_dev *pci)
 {
-	struct dwc2_hsotg *hsotg = pci_get_drvdata(dev);
+	struct dwc2_pci_glue *glue = pci_get_drvdata(pci);
 
-	dwc2_hcd_remove(hsotg);
-	pci_disable_device(dev);
+	platform_device_unregister(glue->dwc2);
+	usb_phy_generic_unregister(glue->phy);
+	kfree(glue);
+	pci_set_drvdata(pci, NULL);
 }
 
-/**
- * dwc2_driver_probe() - Called when the DWC_otg core is bound to the DWC_otg
- * driver
- *
- * @dev: Bus device
- *
- * This routine creates the driver components required to control the device
- * (core, HCD, and PCD) and initializes the device. The driver components are
- * stored in a dwc2_hsotg structure. A reference to the dwc2_hsotg is saved
- * in the device private data. This allows the driver to access the dwc2_hsotg
- * structure on subsequent calls to driver methods for this device.
- */
-static int dwc2_driver_probe(struct pci_dev *dev,
-			     const struct pci_device_id *id)
+static int dwc2_pci_probe(struct pci_dev *pci,
+		const struct pci_device_id *id)
 {
-	struct dwc2_hsotg *hsotg;
-	int retval;
+	struct resource		res[2];
+	struct platform_device	*dwc2;
+	struct platform_device	*phy;
+	int			ret;
+	struct device		*dev = &pci->dev;
+	struct dwc2_pci_glue	*glue;
+
+	ret = pcim_enable_device(pci);
+	if (ret) {
+		dev_err(dev, "failed to enable pci device\n");
+		return -ENODEV;
+	}
+
+	pci_set_master(pci);
 
-	hsotg = devm_kzalloc(&dev->dev, sizeof(*hsotg), GFP_KERNEL);
-	if (!hsotg)
+	dwc2 = platform_device_alloc("dwc2", PLATFORM_DEVID_AUTO);
+	if (!dwc2) {
+		dev_err(dev, "couldn't allocate dwc2 device\n");
 		return -ENOMEM;
+	}
 
-	hsotg->dev = &dev->dev;
-	hsotg->regs = devm_ioremap_resource(&dev->dev, &dev->resource[0]);
-	if (IS_ERR(hsotg->regs))
-		return PTR_ERR(hsotg->regs);
+	memset(res, 0x00, sizeof(struct resource) * ARRAY_SIZE(res));
 
-	dev_dbg(&dev->dev, "mapped PA %08lx to VA %p\n",
-		(unsigned long)pci_resource_start(dev, 0), hsotg->regs);
+	res[0].start	= pci_resource_start(pci, 0);
+	res[0].end	= pci_resource_end(pci, 0);
+	res[0].name	= "dwc2";
+	res[0].flags	= IORESOURCE_MEM;
 
-	if (pci_enable_device(dev) < 0)
-		return -ENODEV;
+	res[1].start	= pci->irq;
+	res[1].name	= "dwc2";
+	res[1].flags	= IORESOURCE_IRQ;
 
-	pci_set_master(dev);
+	ret = platform_device_add_resources(dwc2, res, ARRAY_SIZE(res));
+	if (ret) {
+		dev_err(dev, "couldn't add resources to dwc2 device\n");
+		return ret;
+	}
 
-	retval = devm_request_irq(hsotg->dev, dev->irq,
-				  dwc2_handle_common_intr, IRQF_SHARED,
-				  dev_name(hsotg->dev), hsotg);
-	if (retval)
-		return retval;
+	dwc2->dev.parent = dev;
 
-	spin_lock_init(&hsotg->lock);
-	retval = dwc2_hcd_init(hsotg, dev->irq, &dwc2_module_params);
-	if (retval) {
-		pci_disable_device(dev);
-		return retval;
+	phy = usb_phy_generic_register();
+	if (IS_ERR(phy)) {
+		dev_err(dev, "error registering generic PHY (%ld)\n",
+			PTR_ERR(phy));
+		return PTR_ERR(phy);
 	}
 
-	pci_set_drvdata(dev, hsotg);
+	ret = platform_device_add(dwc2);
+	if (ret) {
+		dev_err(dev, "failed to register dwc2 device\n");
+		goto err;
+	}
+
+	glue = kzalloc(sizeof(*glue), GFP_KERNEL);
+	if (!glue)
+		return -ENOMEM;
+
+	glue->phy = phy;
+	glue->dwc2 = dwc2;
+	pci_set_drvdata(pci, glue);
 
-	return retval;
+	return 0;
+err:
+	usb_phy_generic_unregister(phy);
+	platform_device_put(dwc2);
+	return ret;
 }
 
 static const struct pci_device_id dwc2_pci_ids[] = {
@@ -174,8 +158,8 @@ MODULE_DEVICE_TABLE(pci, dwc2_pci_ids);
 static struct pci_driver dwc2_pci_driver = {
 	.name = dwc2_driver_name,
 	.id_table = dwc2_pci_ids,
-	.probe = dwc2_driver_probe,
-	.remove = dwc2_driver_remove,
+	.probe = dwc2_pci_probe,
+	.remove = dwc2_pci_remove,
 };
 
 module_pci_driver(dwc2_pci_driver);
diff --git a/drivers/usb/dwc2/platform.c b/drivers/usb/dwc2/platform.c
index ae095f0..185663e 100644
--- a/drivers/usb/dwc2/platform.c
+++ b/drivers/usb/dwc2/platform.c
@@ -121,8 +121,10 @@ static int dwc2_driver_remove(struct platform_device *dev)
 {
 	struct dwc2_hsotg *hsotg = platform_get_drvdata(dev);
 
-	dwc2_hcd_remove(hsotg);
-	s3c_hsotg_remove(hsotg);
+	if (hsotg->hcd_enabled)
+		dwc2_hcd_remove(hsotg);
+	if (hsotg->gadget_enabled)
+		s3c_hsotg_remove(hsotg);
 
 	return 0;
 }
@@ -234,12 +236,23 @@ static int dwc2_driver_probe(struct platform_device *dev)
 
 	spin_lock_init(&hsotg->lock);
 	mutex_init(&hsotg->init_mutex);
-	retval = dwc2_gadget_init(hsotg, irq);
-	if (retval)
-		return retval;
-	retval = dwc2_hcd_init(hsotg, irq, params);
-	if (retval)
-		return retval;
+
+	if (hsotg->dr_mode != USB_DR_MODE_HOST) {
+		retval = dwc2_gadget_init(hsotg, irq);
+		if (retval)
+			return retval;
+		hsotg->gadget_enabled = 1;
+	}
+
+	if (hsotg->dr_mode != USB_DR_MODE_PERIPHERAL) {
+		retval = dwc2_hcd_init(hsotg, irq, params);
+		if (retval) {
+			if (hsotg->gadget_enabled)
+				s3c_hsotg_remove(hsotg);
+			return retval;
+		}
+		hsotg->hcd_enabled = 1;
+	}
 
 	platform_set_drvdata(dev, hsotg);
 
diff --git a/drivers/usb/dwc3/Kconfig b/drivers/usb/dwc3/Kconfig
index edbf9c8..827c4f8 100644
--- a/drivers/usb/dwc3/Kconfig
+++ b/drivers/usb/dwc3/Kconfig
@@ -104,11 +104,4 @@ config USB_DWC3_DEBUG
 	help
 	  Say Y here to enable debugging messages on DWC3 Driver.
 
-config DWC3_HOST_USB3_LPM_ENABLE
-	bool "Enable USB3 LPM Capability"
-	depends on USB_DWC3_HOST=y || USB_DWC3_DUAL_ROLE=y
-	default n
-	help
-	  Select this when you want to enable USB3 LPM with dwc3 xhci host.
-
 endif
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index 9f0e209..2bbab3d 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -774,17 +774,13 @@ static int dwc3_probe(struct platform_device *pdev)
 	 * since it will be requested by the xhci-plat driver.
 	 */
 	regs = devm_ioremap_resource(dev, res);
-	if (IS_ERR(regs))
-		return PTR_ERR(regs);
+	if (IS_ERR(regs)) {
+		ret = PTR_ERR(regs);
+		goto err0;
+	}
 
 	dwc->regs	= regs;
 	dwc->regs_size	= resource_size(res);
-	/*
-	 * restore res->start back to its original value so that,
-	 * in case the probe is deferred, we don't end up getting error in
-	 * request the memory region the next time probe is called.
-	 */
-	res->start -= DWC3_GLOBALS_REGS_START;
 
 	/* default to highest possible threshold */
 	lpm_nyet_threshold = 0xff;
@@ -808,6 +804,8 @@ static int dwc3_probe(struct platform_device *pdev)
 				"snps,is-utmi-l1-suspend");
 		of_property_read_u8(node, "snps,hird-threshold",
 				&hird_threshold);
+		dwc->usb3_lpm_capable = of_property_read_bool(node,
+				"snps,usb3_lpm_capable");
 
 		dwc->needs_fifo_resize = of_property_read_bool(node,
 				"tx-fifo-resize");
@@ -848,6 +846,7 @@ static int dwc3_probe(struct platform_device *pdev)
 			hird_threshold = pdata->hird_threshold;
 
 		dwc->needs_fifo_resize = pdata->tx_fifo_resize;
+		dwc->usb3_lpm_capable = pdata->usb3_lpm_capable;
 		dwc->dr_mode = pdata->dr_mode;
 
 		dwc->disable_scramble_quirk = pdata->disable_scramble_quirk;
@@ -878,7 +877,7 @@ static int dwc3_probe(struct platform_device *pdev)
 
 	ret = dwc3_core_get_phy(dwc);
 	if (ret)
-		return ret;
+		goto err0;
 
 	spin_lock_init(&dwc->lock);
 	platform_set_drvdata(pdev, dwc);
@@ -899,7 +898,7 @@ static int dwc3_probe(struct platform_device *pdev)
 	if (ret) {
 		dev_err(dwc->dev, "failed to allocate event buffers\n");
 		ret = -ENOMEM;
-		goto err0;
+		goto err1;
 	}
 
 	if (IS_ENABLED(CONFIG_USB_DWC3_HOST))
@@ -913,65 +912,81 @@ static int dwc3_probe(struct platform_device *pdev)
 	ret = dwc3_core_init(dwc);
 	if (ret) {
 		dev_err(dev, "failed to initialize core\n");
-		goto err0;
+		goto err1;
 	}
 
 	usb_phy_set_suspend(dwc->usb2_phy, 0);
 	usb_phy_set_suspend(dwc->usb3_phy, 0);
 	ret = phy_power_on(dwc->usb2_generic_phy);
 	if (ret < 0)
-		goto err1;
+		goto err2;
 
 	ret = phy_power_on(dwc->usb3_generic_phy);
 	if (ret < 0)
-		goto err_usb2phy_power;
+		goto err3;
 
 	ret = dwc3_event_buffers_setup(dwc);
 	if (ret) {
 		dev_err(dwc->dev, "failed to setup event buffers\n");
-		goto err_usb3phy_power;
+		goto err4;
 	}
 
 	ret = dwc3_core_init_mode(dwc);
 	if (ret)
-		goto err2;
+		goto err5;
 
 	ret = dwc3_debugfs_init(dwc);
 	if (ret) {
 		dev_err(dev, "failed to initialize debugfs\n");
-		goto err3;
+		goto err6;
 	}
 
 	pm_runtime_allow(dev);
 
 	return 0;
 
-err3:
+err6:
 	dwc3_core_exit_mode(dwc);
 
-err2:
+err5:
 	dwc3_event_buffers_cleanup(dwc);
 
-err_usb3phy_power:
+err4:
 	phy_power_off(dwc->usb3_generic_phy);
 
-err_usb2phy_power:
+err3:
 	phy_power_off(dwc->usb2_generic_phy);
 
-err1:
+err2:
 	usb_phy_set_suspend(dwc->usb2_phy, 1);
 	usb_phy_set_suspend(dwc->usb3_phy, 1);
 	dwc3_core_exit(dwc);
 
-err0:
+err1:
 	dwc3_free_event_buffers(dwc);
 
+err0:
+	/*
+	 * restore res->start back to its original value so that, in case the
+	 * probe is deferred, we don't end up getting error in request the
+	 * memory region the next time probe is called.
+	 */
+	res->start -= DWC3_GLOBALS_REGS_START;
+
 	return ret;
 }
 
 static int dwc3_remove(struct platform_device *pdev)
 {
 	struct dwc3	*dwc = platform_get_drvdata(pdev);
+	struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+
+	/*
+	 * restore res->start back to its original value so that, in case the
+	 * probe is deferred, we don't end up getting error in request the
+	 * memory region the next time probe is called.
+	 */
+	res->start -= DWC3_GLOBALS_REGS_START;
 
 	dwc3_debugfs_exit(dwc);
 	dwc3_core_exit_mode(dwc);
diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h
index d201910..fdab715 100644
--- a/drivers/usb/dwc3/core.h
+++ b/drivers/usb/dwc3/core.h
@@ -689,6 +689,7 @@ struct dwc3_scratchpad_array {
  * @setup_packet_pending: true when there's a Setup Packet in FIFO. Workaround
  * @start_config_issued: true when StartConfig command has been issued
  * @three_stage_setup: set if we perform a three phase setup
+ * @usb3_lpm_capable: set if hadrware supports Link Power Management
  * @disable_scramble_quirk: set if we enable the disable scramble quirk
  * @u2exit_lfps_quirk: set if we enable u2exit lfps quirk
  * @u2ss_inp3_quirk: set if we enable P3 OK for U2/SS Inactive quirk
@@ -812,6 +813,7 @@ struct dwc3 {
 	unsigned		setup_packet_pending:1;
 	unsigned		start_config_issued:1;
 	unsigned		three_stage_setup:1;
+	unsigned		usb3_lpm_capable:1;
 
 	unsigned		disable_scramble_quirk:1;
 	unsigned		u2exit_lfps_quirk:1;
diff --git a/drivers/usb/dwc3/dwc3-omap.c b/drivers/usb/dwc3/dwc3-omap.c
index 172d64e..edba534 100644
--- a/drivers/usb/dwc3/dwc3-omap.c
+++ b/drivers/usb/dwc3/dwc3-omap.c
@@ -205,6 +205,18 @@ static void dwc3_omap_write_irq0_set(struct dwc3_omap *omap, u32 value)
 						omap->irq0_offset, value);
 }
 
+static void dwc3_omap_write_irqmisc_clr(struct dwc3_omap *omap, u32 value)
+{
+	dwc3_omap_writel(omap->base, USBOTGSS_IRQENABLE_CLR_MISC +
+						omap->irqmisc_offset, value);
+}
+
+static void dwc3_omap_write_irq0_clr(struct dwc3_omap *omap, u32 value)
+{
+	dwc3_omap_writel(omap->base, USBOTGSS_IRQENABLE_CLR_0 -
+						omap->irq0_offset, value);
+}
+
 static void dwc3_omap_set_mailbox(struct dwc3_omap *omap,
 	enum omap_dwc3_vbus_id_status status)
 {
@@ -313,15 +325,6 @@ static irqreturn_t dwc3_omap_interrupt(int irq, void *_omap)
 	return IRQ_HANDLED;
 }
 
-static int dwc3_omap_remove_core(struct device *dev, void *c)
-{
-	struct platform_device *pdev = to_platform_device(dev);
-
-	of_device_unregister(pdev);
-
-	return 0;
-}
-
 static void dwc3_omap_enable_irqs(struct dwc3_omap *omap)
 {
 	u32			reg;
@@ -345,9 +348,23 @@ static void dwc3_omap_enable_irqs(struct dwc3_omap *omap)
 
 static void dwc3_omap_disable_irqs(struct dwc3_omap *omap)
 {
+	u32			reg;
+
 	/* disable all IRQs */
-	dwc3_omap_write_irqmisc_set(omap, 0x00);
-	dwc3_omap_write_irq0_set(omap, 0x00);
+	reg = USBOTGSS_IRQO_COREIRQ_ST;
+	dwc3_omap_write_irq0_clr(omap, reg);
+
+	reg = (USBOTGSS_IRQMISC_OEVT |
+			USBOTGSS_IRQMISC_DRVVBUS_RISE |
+			USBOTGSS_IRQMISC_CHRGVBUS_RISE |
+			USBOTGSS_IRQMISC_DISCHRGVBUS_RISE |
+			USBOTGSS_IRQMISC_IDPULLUP_RISE |
+			USBOTGSS_IRQMISC_DRVVBUS_FALL |
+			USBOTGSS_IRQMISC_CHRGVBUS_FALL |
+			USBOTGSS_IRQMISC_DISCHRGVBUS_FALL |
+			USBOTGSS_IRQMISC_IDPULLUP_FALL);
+
+	dwc3_omap_write_irqmisc_clr(omap, reg);
 }
 
 static u64 dwc3_omap_dma_mask = DMA_BIT_MASK(32);
@@ -574,7 +591,7 @@ static int dwc3_omap_remove(struct platform_device *pdev)
 	if (omap->extcon_id_dev.edev)
 		extcon_unregister_interest(&omap->extcon_id_dev);
 	dwc3_omap_disable_irqs(omap);
-	device_for_each_child(&pdev->dev, NULL, dwc3_omap_remove_core);
+	of_platform_depopulate(omap->dev);
 	pm_runtime_put_sync(&pdev->dev);
 	pm_runtime_disable(&pdev->dev);
 
diff --git a/drivers/usb/dwc3/dwc3-pci.c b/drivers/usb/dwc3/dwc3-pci.c
index 8d95056..b773fb5 100644
--- a/drivers/usb/dwc3/dwc3-pci.c
+++ b/drivers/usb/dwc3/dwc3-pci.c
@@ -24,8 +24,6 @@
 
 #include "platform_data.h"
 
-/* FIXME define these in <linux/pci_ids.h> */
-#define PCI_VENDOR_ID_SYNOPSYS		0x16c3
 #define PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3	0xabcd
 #define PCI_DEVICE_ID_INTEL_BYT		0x0f37
 #define PCI_DEVICE_ID_INTEL_MRFLD	0x119e
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index a03a485..8946c32 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -1855,32 +1855,27 @@ static int dwc3_cleanup_done_reqs(struct dwc3 *dwc, struct dwc3_ep *dep,
 	unsigned int		i;
 	int			ret;
 
+	req = next_request(&dep->req_queued);
+	if (!req) {
+		WARN_ON_ONCE(1);
+		return 1;
+	}
+	i = 0;
 	do {
-		req = next_request(&dep->req_queued);
-		if (!req) {
-			WARN_ON_ONCE(1);
-			return 1;
-		}
-		i = 0;
-		do {
-			slot = req->start_slot + i;
-			if ((slot == DWC3_TRB_NUM - 1) &&
+		slot = req->start_slot + i;
+		if ((slot == DWC3_TRB_NUM - 1) &&
 				usb_endpoint_xfer_isoc(dep->endpoint.desc))
-				slot++;
-			slot %= DWC3_TRB_NUM;
-			trb = &dep->trb_pool[slot];
-
-			ret = __dwc3_cleanup_done_trbs(dwc, dep, req, trb,
-					event, status);
-			if (ret)
-				break;
-		}while (++i < req->request.num_mapped_sgs);
-
-		dwc3_gadget_giveback(dep, req, status);
+			slot++;
+		slot %= DWC3_TRB_NUM;
+		trb = &dep->trb_pool[slot];
 
+		ret = __dwc3_cleanup_done_trbs(dwc, dep, req, trb,
+				event, status);
 		if (ret)
 			break;
-	} while (1);
+	} while (++i < req->request.num_mapped_sgs);
+
+	dwc3_gadget_giveback(dep, req, status);
 
 	if (usb_endpoint_xfer_isoc(dep->endpoint.desc) &&
 			list_empty(&dep->req_queued)) {
diff --git a/drivers/usb/dwc3/host.c b/drivers/usb/dwc3/host.c
index 12bfd3c..c679f63 100644
--- a/drivers/usb/dwc3/host.c
+++ b/drivers/usb/dwc3/host.c
@@ -49,9 +49,7 @@ int dwc3_host_init(struct dwc3 *dwc)
 
 	memset(&pdata, 0, sizeof(pdata));
 
-#ifdef CONFIG_DWC3_HOST_USB3_LPM_ENABLE
-	pdata.usb3_lpm_capable = 1;
-#endif
+	pdata.usb3_lpm_capable = dwc->usb3_lpm_capable;
 
 	ret = platform_device_add_data(xhci, &pdata, sizeof(pdata));
 	if (ret) {
diff --git a/drivers/usb/dwc3/platform_data.h b/drivers/usb/dwc3/platform_data.h
index a3a3b6d..a2bd464 100644
--- a/drivers/usb/dwc3/platform_data.h
+++ b/drivers/usb/dwc3/platform_data.h
@@ -24,6 +24,7 @@ struct dwc3_platform_data {
 	enum usb_device_speed maximum_speed;
 	enum usb_dr_mode dr_mode;
 	bool tx_fifo_resize;
+	bool usb3_lpm_capable;
 
 	unsigned is_utmi_l1_suspend:1;
 	u8 hird_threshold;
diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig
index b454d05..bcf83c0 100644
--- a/drivers/usb/gadget/Kconfig
+++ b/drivers/usb/gadget/Kconfig
@@ -196,6 +196,9 @@ config USB_F_MIDI
 config USB_F_HID
 	tristate
 
+config USB_F_PRINTER
+	tristate
+
 choice
 	tristate "USB Gadget Drivers"
 	default USB_ETH
@@ -434,6 +437,20 @@ config USB_CONFIGFS_F_UVC
 	  device. It provides a userspace API to process UVC control requests
 	  and stream video data to the host.
 
+config USB_CONFIGFS_F_PRINTER
+	bool "Printer function"
+	select USB_F_PRINTER
+	depends on USB_CONFIGFS
+	help
+	  The Printer function channels data between the USB host and a
+	  userspace program driving the print engine. The user space
+	  program reads and writes the device file /dev/g_printer<X> to
+	  receive or send printer data. It can use ioctl calls to
+	  the device file to get or set printer status.
+
+	  For more information, see Documentation/usb/gadget_printer.txt
+	  which includes sample code for accessing the device file.
+
 source "drivers/usb/gadget/legacy/Kconfig"
 
 endchoice
diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c
index 13adfd1..4e3447b 100644
--- a/drivers/usb/gadget/composite.c
+++ b/drivers/usb/gadget/composite.c
@@ -1161,11 +1161,11 @@ static struct usb_gadget_string_container *copy_gadget_strings(
  * This function will create a deep copy of usb_gadget_strings and usb_string
  * and attach it to the cdev. The actual string (usb_string.s) will not be
  * copied but only a referenced will be made. The struct usb_gadget_strings
- * array may contain multiple languges and should be NULL terminated.
+ * array may contain multiple languages and should be NULL terminated.
  * The ->language pointer of each struct usb_gadget_strings has to contain the
  * same amount of entries.
  * For instance: sp[0] is en-US, sp[1] is es-ES. It is expected that the first
- * usb_string entry of es-ES containts the translation of the first usb_string
+ * usb_string entry of es-ES contains the translation of the first usb_string
  * entry of en-US. Therefore both entries become the same id assign.
  */
 struct usb_string *usb_gstrings_attach(struct usb_composite_dev *cdev,
@@ -1472,6 +1472,13 @@ composite_setup(struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl)
 	req->length = 0;
 	gadget->ep0->driver_data = cdev;
 
+	/*
+	 * Don't let non-standard requests match any of the cases below
+	 * by accident.
+	 */
+	if ((ctrl->bRequestType & USB_TYPE_MASK) != USB_TYPE_STANDARD)
+		goto unknown;
+
 	switch (ctrl->bRequest) {
 
 	/* we handle all standard USB descriptors */
@@ -1751,6 +1758,10 @@ unknown:
 		 * take such requests too, if that's ever needed:  to work
 		 * in config 0, etc.
 		 */
+		list_for_each_entry(f, &cdev->config->functions, list)
+			if (f->req_match && f->req_match(f, ctrl))
+				goto try_fun_setup;
+		f = NULL;
 		switch (ctrl->bRequestType & USB_RECIP_MASK) {
 		case USB_RECIP_INTERFACE:
 			if (!cdev->config || intf >= MAX_CONFIG_INTERFACES)
@@ -1768,7 +1779,7 @@ unknown:
 				f = NULL;
 			break;
 		}
-
+try_fun_setup:
 		if (f && f->setup)
 			value = f->setup(f, ctrl);
 		else {
diff --git a/drivers/usb/gadget/configfs.c b/drivers/usb/gadget/configfs.c
index 7564814..c42765b 100644
--- a/drivers/usb/gadget/configfs.c
+++ b/drivers/usb/gadget/configfs.c
@@ -1161,7 +1161,6 @@ static ssize_t interf_grp_compatible_id_store(struct usb_os_desc *desc,
 	if (desc->opts_mutex)
 		mutex_lock(desc->opts_mutex);
 	memcpy(desc->ext_compat_id, page, l);
-	desc->ext_compat_id[l] = '\0';
 
 	if (desc->opts_mutex)
 		mutex_unlock(desc->opts_mutex);
@@ -1192,7 +1191,6 @@ static ssize_t interf_grp_sub_compatible_id_store(struct usb_os_desc *desc,
 	if (desc->opts_mutex)
 		mutex_lock(desc->opts_mutex);
 	memcpy(desc->ext_compat_id + 8, page, l);
-	desc->ext_compat_id[l + 8] = '\0';
 
 	if (desc->opts_mutex)
 		mutex_unlock(desc->opts_mutex);
diff --git a/drivers/usb/gadget/function/Makefile b/drivers/usb/gadget/function/Makefile
index f71b1aa..bd7def5 100644
--- a/drivers/usb/gadget/function/Makefile
+++ b/drivers/usb/gadget/function/Makefile
@@ -42,3 +42,5 @@ usb_f_midi-y			:= f_midi.o
 obj-$(CONFIG_USB_F_MIDI)	+= usb_f_midi.o
 usb_f_hid-y			:= f_hid.o
 obj-$(CONFIG_USB_F_HID)		+= usb_f_hid.o
+usb_f_printer-y			:= f_printer.o
+obj-$(CONFIG_USB_F_PRINTER)	+= usb_f_printer.o
diff --git a/drivers/usb/gadget/function/f_fs.c b/drivers/usb/gadget/function/f_fs.c
index af98b09..175c995 100644
--- a/drivers/usb/gadget/function/f_fs.c
+++ b/drivers/usb/gadget/function/f_fs.c
@@ -144,10 +144,9 @@ struct ffs_io_data {
 	bool read;
 
 	struct kiocb *kiocb;
-	const struct iovec *iovec;
-	unsigned long nr_segs;
-	char __user *buf;
-	size_t len;
+	struct iov_iter data;
+	const void *to_free;
+	char *buf;
 
 	struct mm_struct *mm;
 	struct work_struct work;
@@ -649,29 +648,10 @@ static void ffs_user_copy_worker(struct work_struct *work)
 					 io_data->req->actual;
 
 	if (io_data->read && ret > 0) {
-		int i;
-		size_t pos = 0;
-
-		/*
-		 * Since req->length may be bigger than io_data->len (after
-		 * being rounded up to maxpacketsize), we may end up with more
-		 * data then user space has space for.
-		 */
-		ret = min_t(int, ret, io_data->len);
-
 		use_mm(io_data->mm);
-		for (i = 0; i < io_data->nr_segs; i++) {
-			size_t len = min_t(size_t, ret - pos,
-					io_data->iovec[i].iov_len);
-			if (!len)
-				break;
-			if (unlikely(copy_to_user(io_data->iovec[i].iov_base,
-						 &io_data->buf[pos], len))) {
-				ret = -EFAULT;
-				break;
-			}
-			pos += len;
-		}
+		ret = copy_to_iter(io_data->buf, ret, &io_data->data);
+		if (iov_iter_count(&io_data->data))
+			ret = -EFAULT;
 		unuse_mm(io_data->mm);
 	}
 
@@ -684,7 +664,7 @@ static void ffs_user_copy_worker(struct work_struct *work)
 
 	io_data->kiocb->private = NULL;
 	if (io_data->read)
-		kfree(io_data->iovec);
+		kfree(io_data->to_free);
 	kfree(io_data->buf);
 	kfree(io_data);
 }
@@ -743,6 +723,7 @@ static ssize_t ffs_epfile_io(struct file *file, struct ffs_io_data *io_data)
 		 * before the waiting completes, so do not assign to 'gadget' earlier
 		 */
 		struct usb_gadget *gadget = epfile->ffs->gadget;
+		size_t copied;
 
 		spin_lock_irq(&epfile->ffs->eps_lock);
 		/* In the meantime, endpoint got disabled or changed. */
@@ -750,34 +731,21 @@ static ssize_t ffs_epfile_io(struct file *file, struct ffs_io_data *io_data)
 			spin_unlock_irq(&epfile->ffs->eps_lock);
 			return -ESHUTDOWN;
 		}
+		data_len = iov_iter_count(&io_data->data);
 		/*
 		 * Controller may require buffer size to be aligned to
 		 * maxpacketsize of an out endpoint.
 		 */
-		data_len = io_data->read ?
-			   usb_ep_align_maybe(gadget, ep->ep, io_data->len) :
-			   io_data->len;
+		if (io_data->read)
+			data_len = usb_ep_align_maybe(gadget, ep->ep, data_len);
 		spin_unlock_irq(&epfile->ffs->eps_lock);
 
 		data = kmalloc(data_len, GFP_KERNEL);
 		if (unlikely(!data))
 			return -ENOMEM;
-		if (io_data->aio && !io_data->read) {
-			int i;
-			size_t pos = 0;
-			for (i = 0; i < io_data->nr_segs; i++) {
-				if (unlikely(copy_from_user(&data[pos],
-					     io_data->iovec[i].iov_base,
-					     io_data->iovec[i].iov_len))) {
-					ret = -EFAULT;
-					goto error;
-				}
-				pos += io_data->iovec[i].iov_len;
-			}
-		} else {
-			if (!io_data->read &&
-			    unlikely(__copy_from_user(data, io_data->buf,
-						      io_data->len))) {
+		if (!io_data->read) {
+			copied = copy_from_iter(data, data_len, &io_data->data);
+			if (copied != data_len) {
 				ret = -EFAULT;
 				goto error;
 			}
@@ -876,10 +844,8 @@ static ssize_t ffs_epfile_io(struct file *file, struct ffs_io_data *io_data)
 				 */
 				ret = ep->status;
 				if (io_data->read && ret > 0) {
-					ret = min_t(size_t, ret, io_data->len);
-
-					if (unlikely(copy_to_user(io_data->buf,
-						data, ret)))
+					ret = copy_to_iter(data, ret, &io_data->data);
+					if (unlikely(iov_iter_count(&io_data->data)))
 						ret = -EFAULT;
 				}
 			}
@@ -898,37 +864,6 @@ error:
 	return ret;
 }
 
-static ssize_t
-ffs_epfile_write(struct file *file, const char __user *buf, size_t len,
-		 loff_t *ptr)
-{
-	struct ffs_io_data io_data;
-
-	ENTER();
-
-	io_data.aio = false;
-	io_data.read = false;
-	io_data.buf = (char * __user)buf;
-	io_data.len = len;
-
-	return ffs_epfile_io(file, &io_data);
-}
-
-static ssize_t
-ffs_epfile_read(struct file *file, char __user *buf, size_t len, loff_t *ptr)
-{
-	struct ffs_io_data io_data;
-
-	ENTER();
-
-	io_data.aio = false;
-	io_data.read = true;
-	io_data.buf = buf;
-	io_data.len = len;
-
-	return ffs_epfile_io(file, &io_data);
-}
-
 static int
 ffs_epfile_open(struct inode *inode, struct file *file)
 {
@@ -965,67 +900,86 @@ static int ffs_aio_cancel(struct kiocb *kiocb)
 	return value;
 }
 
-static ssize_t ffs_epfile_aio_write(struct kiocb *kiocb,
-				    const struct iovec *iovec,
-				    unsigned long nr_segs, loff_t loff)
+static ssize_t ffs_epfile_write_iter(struct kiocb *kiocb, struct iov_iter *from)
 {
-	struct ffs_io_data *io_data;
+	struct ffs_io_data io_data, *p = &io_data;
+	ssize_t res;
 
 	ENTER();
 
-	io_data = kmalloc(sizeof(*io_data), GFP_KERNEL);
-	if (unlikely(!io_data))
-		return -ENOMEM;
+	if (!is_sync_kiocb(kiocb)) {
+		p = kmalloc(sizeof(io_data), GFP_KERNEL);
+		if (unlikely(!p))
+			return -ENOMEM;
+		p->aio = true;
+	} else {
+		p->aio = false;
+	}
 
-	io_data->aio = true;
-	io_data->read = false;
-	io_data->kiocb = kiocb;
-	io_data->iovec = iovec;
-	io_data->nr_segs = nr_segs;
-	io_data->len = kiocb->ki_nbytes;
-	io_data->mm = current->mm;
+	p->read = false;
+	p->kiocb = kiocb;
+	p->data = *from;
+	p->mm = current->mm;
 
-	kiocb->private = io_data;
+	kiocb->private = p;
 
 	kiocb_set_cancel_fn(kiocb, ffs_aio_cancel);
 
-	return ffs_epfile_io(kiocb->ki_filp, io_data);
+	res = ffs_epfile_io(kiocb->ki_filp, p);
+	if (res == -EIOCBQUEUED)
+		return res;
+	if (p->aio)
+		kfree(p);
+	else
+		*from = p->data;
+	return res;
 }
 
-static ssize_t ffs_epfile_aio_read(struct kiocb *kiocb,
-				   const struct iovec *iovec,
-				   unsigned long nr_segs, loff_t loff)
+static ssize_t ffs_epfile_read_iter(struct kiocb *kiocb, struct iov_iter *to)
 {
-	struct ffs_io_data *io_data;
-	struct iovec *iovec_copy;
+	struct ffs_io_data io_data, *p = &io_data;
+	ssize_t res;
 
 	ENTER();
 
-	iovec_copy = kmalloc_array(nr_segs, sizeof(*iovec_copy), GFP_KERNEL);
-	if (unlikely(!iovec_copy))
-		return -ENOMEM;
-
-	memcpy(iovec_copy, iovec, sizeof(struct iovec)*nr_segs);
-
-	io_data = kmalloc(sizeof(*io_data), GFP_KERNEL);
-	if (unlikely(!io_data)) {
-		kfree(iovec_copy);
-		return -ENOMEM;
+	if (!is_sync_kiocb(kiocb)) {
+		p = kmalloc(sizeof(io_data), GFP_KERNEL);
+		if (unlikely(!p))
+			return -ENOMEM;
+		p->aio = true;
+	} else {
+		p->aio = false;
 	}
 
-	io_data->aio = true;
-	io_data->read = true;
-	io_data->kiocb = kiocb;
-	io_data->iovec = iovec_copy;
-	io_data->nr_segs = nr_segs;
-	io_data->len = kiocb->ki_nbytes;
-	io_data->mm = current->mm;
+	p->read = true;
+	p->kiocb = kiocb;
+	if (p->aio) {
+		p->to_free = dup_iter(&p->data, to, GFP_KERNEL);
+		if (!p->to_free) {
+			kfree(p);
+			return -ENOMEM;
+		}
+	} else {
+		p->data = *to;
+		p->to_free = NULL;
+	}
+	p->mm = current->mm;
 
-	kiocb->private = io_data;
+	kiocb->private = p;
 
 	kiocb_set_cancel_fn(kiocb, ffs_aio_cancel);
 
-	return ffs_epfile_io(kiocb->ki_filp, io_data);
+	res = ffs_epfile_io(kiocb->ki_filp, p);
+	if (res == -EIOCBQUEUED)
+		return res;
+
+	if (p->aio) {
+		kfree(p->to_free);
+		kfree(p);
+	} else {
+		*to = p->data;
+	}
+	return res;
 }
 
 static int
@@ -1105,10 +1059,10 @@ static const struct file_operations ffs_epfile_operations = {
 	.llseek =	no_llseek,
 
 	.open =		ffs_epfile_open,
-	.write =	ffs_epfile_write,
-	.read =		ffs_epfile_read,
-	.aio_write =	ffs_epfile_aio_write,
-	.aio_read =	ffs_epfile_aio_read,
+	.write =	new_sync_write,
+	.read =		new_sync_read,
+	.write_iter =	ffs_epfile_write_iter,
+	.read_iter =	ffs_epfile_read_iter,
 	.release =	ffs_epfile_release,
 	.unlocked_ioctl =	ffs_epfile_ioctl,
 };
diff --git a/drivers/usb/gadget/function/f_hid.c b/drivers/usb/gadget/function/f_hid.c
index 426d69a..13dfc99 100644
--- a/drivers/usb/gadget/function/f_hid.c
+++ b/drivers/usb/gadget/function/f_hid.c
@@ -569,7 +569,7 @@ fail:
 	return status;
 }
 
-const struct file_operations f_hidg_fops = {
+static const struct file_operations f_hidg_fops = {
 	.owner		= THIS_MODULE,
 	.open		= f_hidg_open,
 	.release	= f_hidg_release,
@@ -908,7 +908,6 @@ static void hidg_unbind(struct usb_configuration *c, struct usb_function *f)
 
 	/* disable/free request and end point */
 	usb_ep_disable(hidg->in_ep);
-	usb_ep_dequeue(hidg->in_ep, hidg->req);
 	kfree(hidg->req->buf);
 	usb_ep_free_request(hidg->in_ep, hidg->req);
 
diff --git a/drivers/usb/gadget/function/f_loopback.c b/drivers/usb/gadget/function/f_loopback.c
index 298b461..39f49f1 100644
--- a/drivers/usb/gadget/function/f_loopback.c
+++ b/drivers/usb/gadget/function/f_loopback.c
@@ -289,8 +289,7 @@ static void disable_loopback(struct f_loopback *loop)
 	struct usb_composite_dev	*cdev;
 
 	cdev = loop->function.config->cdev;
-	disable_endpoints(cdev, loop->in_ep, loop->out_ep, NULL, NULL, NULL,
-			NULL);
+	disable_endpoints(cdev, loop->in_ep, loop->out_ep, NULL, NULL);
 	VDBG(cdev, "%s disabled\n", loop->function.name);
 }
 
diff --git a/drivers/usb/gadget/function/f_mass_storage.c b/drivers/usb/gadget/function/f_mass_storage.c
index 811929c..3cc109f 100644
--- a/drivers/usb/gadget/function/f_mass_storage.c
+++ b/drivers/usb/gadget/function/f_mass_storage.c
@@ -1085,7 +1085,7 @@ static int do_inquiry(struct fsg_common *common, struct fsg_buffhd *bh)
 	if (!curlun) {		/* Unsupported LUNs are okay */
 		common->bad_lun_okay = 1;
 		memset(buf, 0, 36);
-		buf[0] = 0x7f;		/* Unsupported, no device-type */
+		buf[0] = TYPE_NO_LUN;	/* Unsupported, no device-type */
 		buf[4] = 31;		/* Additional length */
 		return 36;
 	}
@@ -2624,13 +2624,10 @@ static ssize_t file_store(struct device *dev, struct device_attribute *attr,
 	return fsg_store_file(curlun, filesem, buf, count);
 }
 
-static DEVICE_ATTR_RW(ro);
 static DEVICE_ATTR_RW(nofua);
-static DEVICE_ATTR_RW(file);
-
-static struct device_attribute dev_attr_ro_cdrom = __ATTR_RO(ro);
-static struct device_attribute dev_attr_file_nonremovable = __ATTR_RO(file);
-
+/* mode wil be set in fsg_lun_attr_is_visible() */
+static DEVICE_ATTR(ro, 0, ro_show, ro_store);
+static DEVICE_ATTR(file, 0, file_show, file_store);
 
 /****************************** FSG COMMON ******************************/
 
@@ -2745,40 +2742,10 @@ error_release:
 }
 EXPORT_SYMBOL_GPL(fsg_common_set_num_buffers);
 
-static inline void fsg_common_remove_sysfs(struct fsg_lun *lun)
-{
-	device_remove_file(&lun->dev, &dev_attr_nofua);
-	/*
-	 * device_remove_file() =>
-	 *
-	 * here the attr (e.g. dev_attr_ro) is only used to be passed to:
-	 *
-	 *	sysfs_remove_file() =>
-	 *
-	 *	here e.g. both dev_attr_ro_cdrom and dev_attr_ro are in
-	 *	the same namespace and
-	 *	from here only attr->name is passed to:
-	 *
-	 *		sysfs_hash_and_remove()
-	 *
-	 *		attr->name is the same for dev_attr_ro_cdrom and
-	 *		dev_attr_ro
-	 *		attr->name is the same for dev_attr_file and
-	 *		dev_attr_file_nonremovable
-	 *
-	 * so we don't differentiate between removing e.g. dev_attr_ro_cdrom
-	 * and dev_attr_ro
-	 */
-	device_remove_file(&lun->dev, &dev_attr_ro);
-	device_remove_file(&lun->dev, &dev_attr_file);
-}
-
 void fsg_common_remove_lun(struct fsg_lun *lun, bool sysfs)
 {
-	if (sysfs) {
-		fsg_common_remove_sysfs(lun);
+	if (sysfs)
 		device_unregister(&lun->dev);
-	}
 	fsg_lun_close(lun);
 	kfree(lun);
 }
@@ -2877,41 +2844,35 @@ int fsg_common_set_cdev(struct fsg_common *common,
 }
 EXPORT_SYMBOL_GPL(fsg_common_set_cdev);
 
-static inline int fsg_common_add_sysfs(struct fsg_common *common,
-				       struct fsg_lun *lun)
-{
-	int rc;
+static struct attribute *fsg_lun_dev_attrs[] = {
+	&dev_attr_ro.attr,
+	&dev_attr_file.attr,
+	&dev_attr_nofua.attr,
+	NULL
+};
 
-	rc = device_register(&lun->dev);
-	if (rc) {
-		put_device(&lun->dev);
-		return rc;
-	}
+static umode_t fsg_lun_dev_is_visible(struct kobject *kobj,
+				      struct attribute *attr, int idx)
+{
+	struct device *dev = kobj_to_dev(kobj);
+	struct fsg_lun *lun = fsg_lun_from_dev(dev);
 
-	rc = device_create_file(&lun->dev,
-				lun->cdrom
-			      ? &dev_attr_ro_cdrom
-			      : &dev_attr_ro);
-	if (rc)
-		goto error;
-	rc = device_create_file(&lun->dev,
-				lun->removable
-			      ? &dev_attr_file
-			      : &dev_attr_file_nonremovable);
-	if (rc)
-		goto error;
-	rc = device_create_file(&lun->dev, &dev_attr_nofua);
-	if (rc)
-		goto error;
+	if (attr == &dev_attr_ro.attr)
+		return lun->cdrom ? S_IRUGO : (S_IWUSR | S_IRUGO);
+	if (attr == &dev_attr_file.attr)
+		return lun->removable ? (S_IWUSR | S_IRUGO) : S_IRUGO;
+	return attr->mode;
+}
 
-	return 0;
+static const struct attribute_group fsg_lun_dev_group = {
+	.attrs = fsg_lun_dev_attrs,
+	.is_visible = fsg_lun_dev_is_visible,
+};
 
-error:
-	/* removing nonexistent files is a no-op */
-	fsg_common_remove_sysfs(lun);
-	device_unregister(&lun->dev);
-	return rc;
-}
+static const struct attribute_group *fsg_lun_dev_groups[] = {
+	&fsg_lun_dev_group,
+	NULL
+};
 
 int fsg_common_create_lun(struct fsg_common *common, struct fsg_lun_config *cfg,
 			  unsigned int id, const char *name,
@@ -2949,13 +2910,15 @@ int fsg_common_create_lun(struct fsg_common *common, struct fsg_lun_config *cfg,
 	} else {
 		lun->dev.release = fsg_lun_release;
 		lun->dev.parent = &common->gadget->dev;
+		lun->dev.groups = fsg_lun_dev_groups;
 		dev_set_drvdata(&lun->dev, &common->filesem);
 		dev_set_name(&lun->dev, "%s", name);
 		lun->name = dev_name(&lun->dev);
 
-		rc = fsg_common_add_sysfs(common, lun);
+		rc = device_register(&lun->dev);
 		if (rc) {
 			pr_info("failed to register LUN%d: %d\n", id, rc);
+			put_device(&lun->dev);
 			goto error_sysfs;
 		}
 	}
@@ -2988,10 +2951,8 @@ int fsg_common_create_lun(struct fsg_common *common, struct fsg_lun_config *cfg,
 	return 0;
 
 error_lun:
-	if (common->sysfs) {
-		fsg_common_remove_sysfs(lun);
+	if (common->sysfs)
 		device_unregister(&lun->dev);
-	}
 	fsg_lun_close(lun);
 	common->luns[id] = NULL;
 error_sysfs:
@@ -3077,8 +3038,6 @@ static void fsg_common_release(struct kref *ref)
 			struct fsg_lun *lun = *lun_it;
 			if (!lun)
 				continue;
-			if (common->sysfs)
-				fsg_common_remove_sysfs(lun);
 			fsg_lun_close(lun);
 			if (common->sysfs)
 				device_unregister(&lun->dev);
diff --git a/drivers/usb/gadget/function/f_phonet.c b/drivers/usb/gadget/function/f_phonet.c
index c89e96c..c0c3ef2 100644
--- a/drivers/usb/gadget/function/f_phonet.c
+++ b/drivers/usb/gadget/function/f_phonet.c
@@ -417,7 +417,10 @@ static int pn_set_alt(struct usb_function *f, unsigned intf, unsigned alt)
 			return -EINVAL;
 
 		spin_lock(&port->lock);
-		__pn_reset(f);
+
+		if (fp->in_ep->driver_data)
+			__pn_reset(f);
+
 		if (alt == 1) {
 			int i;
 
diff --git a/drivers/usb/gadget/function/f_printer.c b/drivers/usb/gadget/function/f_printer.c
new file mode 100644
index 0000000..44173df
--- /dev/null
+++ b/drivers/usb/gadget/function/f_printer.c
@@ -0,0 +1,1471 @@
+/*
+ * f_printer.c - USB printer function driver
+ *
+ * Copied from drivers/usb/gadget/legacy/printer.c,
+ * which was:
+ *
+ * printer.c -- Printer gadget driver
+ *
+ * Copyright (C) 2003-2005 David Brownell
+ * Copyright (C) 2006 Craig W. Nadler
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/delay.h>
+#include <linux/ioport.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/mutex.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/idr.h>
+#include <linux/timer.h>
+#include <linux/list.h>
+#include <linux/interrupt.h>
+#include <linux/device.h>
+#include <linux/moduleparam.h>
+#include <linux/fs.h>
+#include <linux/poll.h>
+#include <linux/types.h>
+#include <linux/ctype.h>
+#include <linux/cdev.h>
+
+#include <asm/byteorder.h>
+#include <linux/io.h>
+#include <linux/irq.h>
+#include <linux/uaccess.h>
+#include <asm/unaligned.h>
+
+#include <linux/usb/ch9.h>
+#include <linux/usb/composite.h>
+#include <linux/usb/gadget.h>
+#include <linux/usb/g_printer.h>
+
+#include "u_printer.h"
+
+#define PNP_STRING_LEN		1024
+#define PRINTER_MINORS		4
+#define GET_DEVICE_ID		0
+#define GET_PORT_STATUS		1
+#define SOFT_RESET		2
+
+static int major, minors;
+static struct class *usb_gadget_class;
+static DEFINE_IDA(printer_ida);
+static DEFINE_MUTEX(printer_ida_lock); /* protects access do printer_ida */
+
+/*-------------------------------------------------------------------------*/
+
+struct printer_dev {
+	spinlock_t		lock;		/* lock this structure */
+	/* lock buffer lists during read/write calls */
+	struct mutex		lock_printer_io;
+	struct usb_gadget	*gadget;
+	s8			interface;
+	struct usb_ep		*in_ep, *out_ep;
+
+	struct list_head	rx_reqs;	/* List of free RX structs */
+	struct list_head	rx_reqs_active;	/* List of Active RX xfers */
+	struct list_head	rx_buffers;	/* List of completed xfers */
+	/* wait until there is data to be read. */
+	wait_queue_head_t	rx_wait;
+	struct list_head	tx_reqs;	/* List of free TX structs */
+	struct list_head	tx_reqs_active; /* List of Active TX xfers */
+	/* Wait until there are write buffers available to use. */
+	wait_queue_head_t	tx_wait;
+	/* Wait until all write buffers have been sent. */
+	wait_queue_head_t	tx_flush_wait;
+	struct usb_request	*current_rx_req;
+	size_t			current_rx_bytes;
+	u8			*current_rx_buf;
+	u8			printer_status;
+	u8			reset_printer;
+	int			minor;
+	struct cdev		printer_cdev;
+	u8			printer_cdev_open;
+	wait_queue_head_t	wait;
+	unsigned		q_len;
+	char			*pnp_string;	/* We don't own memory! */
+	struct usb_function	function;
+};
+
+static inline struct printer_dev *func_to_printer(struct usb_function *f)
+{
+	return container_of(f, struct printer_dev, function);
+}
+
+/*-------------------------------------------------------------------------*/
+
+/*
+ * DESCRIPTORS ... most are static, but strings and (full) configuration
+ * descriptors are built on demand.
+ */
+
+/* holds our biggest descriptor */
+#define USB_DESC_BUFSIZE		256
+#define USB_BUFSIZE			8192
+
+static struct usb_interface_descriptor intf_desc = {
+	.bLength =		sizeof(intf_desc),
+	.bDescriptorType =	USB_DT_INTERFACE,
+	.bNumEndpoints =	2,
+	.bInterfaceClass =	USB_CLASS_PRINTER,
+	.bInterfaceSubClass =	1,	/* Printer Sub-Class */
+	.bInterfaceProtocol =	2,	/* Bi-Directional */
+	.iInterface =		0
+};
+
+static struct usb_endpoint_descriptor fs_ep_in_desc = {
+	.bLength =		USB_DT_ENDPOINT_SIZE,
+	.bDescriptorType =	USB_DT_ENDPOINT,
+	.bEndpointAddress =	USB_DIR_IN,
+	.bmAttributes =		USB_ENDPOINT_XFER_BULK
+};
+
+static struct usb_endpoint_descriptor fs_ep_out_desc = {
+	.bLength =		USB_DT_ENDPOINT_SIZE,
+	.bDescriptorType =	USB_DT_ENDPOINT,
+	.bEndpointAddress =	USB_DIR_OUT,
+	.bmAttributes =		USB_ENDPOINT_XFER_BULK
+};
+
+static struct usb_descriptor_header *fs_printer_function[] = {
+	(struct usb_descriptor_header *) &intf_desc,
+	(struct usb_descriptor_header *) &fs_ep_in_desc,
+	(struct usb_descriptor_header *) &fs_ep_out_desc,
+	NULL
+};
+
+/*
+ * usb 2.0 devices need to expose both high speed and full speed
+ * descriptors, unless they only run at full speed.
+ */
+
+static struct usb_endpoint_descriptor hs_ep_in_desc = {
+	.bLength =		USB_DT_ENDPOINT_SIZE,
+	.bDescriptorType =	USB_DT_ENDPOINT,
+	.bmAttributes =		USB_ENDPOINT_XFER_BULK,
+	.wMaxPacketSize =	cpu_to_le16(512)
+};
+
+static struct usb_endpoint_descriptor hs_ep_out_desc = {
+	.bLength =		USB_DT_ENDPOINT_SIZE,
+	.bDescriptorType =	USB_DT_ENDPOINT,
+	.bmAttributes =		USB_ENDPOINT_XFER_BULK,
+	.wMaxPacketSize =	cpu_to_le16(512)
+};
+
+static struct usb_qualifier_descriptor dev_qualifier = {
+	.bLength =		sizeof(dev_qualifier),
+	.bDescriptorType =	USB_DT_DEVICE_QUALIFIER,
+	.bcdUSB =		cpu_to_le16(0x0200),
+	.bDeviceClass =		USB_CLASS_PRINTER,
+	.bNumConfigurations =	1
+};
+
+static struct usb_descriptor_header *hs_printer_function[] = {
+	(struct usb_descriptor_header *) &intf_desc,
+	(struct usb_descriptor_header *) &hs_ep_in_desc,
+	(struct usb_descriptor_header *) &hs_ep_out_desc,
+	NULL
+};
+
+/*
+ * Added endpoint descriptors for 3.0 devices
+ */
+
+static struct usb_endpoint_descriptor ss_ep_in_desc = {
+	.bLength =              USB_DT_ENDPOINT_SIZE,
+	.bDescriptorType =      USB_DT_ENDPOINT,
+	.bmAttributes =         USB_ENDPOINT_XFER_BULK,
+	.wMaxPacketSize =       cpu_to_le16(1024),
+};
+
+static struct usb_ss_ep_comp_descriptor ss_ep_in_comp_desc = {
+	.bLength =              sizeof(ss_ep_in_comp_desc),
+	.bDescriptorType =      USB_DT_SS_ENDPOINT_COMP,
+};
+
+static struct usb_endpoint_descriptor ss_ep_out_desc = {
+	.bLength =              USB_DT_ENDPOINT_SIZE,
+	.bDescriptorType =      USB_DT_ENDPOINT,
+	.bmAttributes =         USB_ENDPOINT_XFER_BULK,
+	.wMaxPacketSize =       cpu_to_le16(1024),
+};
+
+static struct usb_ss_ep_comp_descriptor ss_ep_out_comp_desc = {
+	.bLength =              sizeof(ss_ep_out_comp_desc),
+	.bDescriptorType =      USB_DT_SS_ENDPOINT_COMP,
+};
+
+static struct usb_descriptor_header *ss_printer_function[] = {
+	(struct usb_descriptor_header *) &intf_desc,
+	(struct usb_descriptor_header *) &ss_ep_in_desc,
+	(struct usb_descriptor_header *) &ss_ep_in_comp_desc,
+	(struct usb_descriptor_header *) &ss_ep_out_desc,
+	(struct usb_descriptor_header *) &ss_ep_out_comp_desc,
+	NULL
+};
+
+/* maxpacket and other transfer characteristics vary by speed. */
+static inline struct usb_endpoint_descriptor *ep_desc(struct usb_gadget *gadget,
+					struct usb_endpoint_descriptor *fs,
+					struct usb_endpoint_descriptor *hs,
+					struct usb_endpoint_descriptor *ss)
+{
+	switch (gadget->speed) {
+	case USB_SPEED_SUPER:
+		return ss;
+	case USB_SPEED_HIGH:
+		return hs;
+	default:
+		return fs;
+	}
+}
+
+/*-------------------------------------------------------------------------*/
+
+static struct usb_request *
+printer_req_alloc(struct usb_ep *ep, unsigned len, gfp_t gfp_flags)
+{
+	struct usb_request	*req;
+
+	req = usb_ep_alloc_request(ep, gfp_flags);
+
+	if (req != NULL) {
+		req->length = len;
+		req->buf = kmalloc(len, gfp_flags);
+		if (req->buf == NULL) {
+			usb_ep_free_request(ep, req);
+			return NULL;
+		}
+	}
+
+	return req;
+}
+
+static void
+printer_req_free(struct usb_ep *ep, struct usb_request *req)
+{
+	if (ep != NULL && req != NULL) {
+		kfree(req->buf);
+		usb_ep_free_request(ep, req);
+	}
+}
+
+/*-------------------------------------------------------------------------*/
+
+static void rx_complete(struct usb_ep *ep, struct usb_request *req)
+{
+	struct printer_dev	*dev = ep->driver_data;
+	int			status = req->status;
+	unsigned long		flags;
+
+	spin_lock_irqsave(&dev->lock, flags);
+
+	list_del_init(&req->list);	/* Remode from Active List */
+
+	switch (status) {
+
+	/* normal completion */
+	case 0:
+		if (req->actual > 0) {
+			list_add_tail(&req->list, &dev->rx_buffers);
+			DBG(dev, "G_Printer : rx length %d\n", req->actual);
+		} else {
+			list_add(&req->list, &dev->rx_reqs);
+		}
+		break;
+
+	/* software-driven interface shutdown */
+	case -ECONNRESET:		/* unlink */
+	case -ESHUTDOWN:		/* disconnect etc */
+		VDBG(dev, "rx shutdown, code %d\n", status);
+		list_add(&req->list, &dev->rx_reqs);
+		break;
+
+	/* for hardware automagic (such as pxa) */
+	case -ECONNABORTED:		/* endpoint reset */
+		DBG(dev, "rx %s reset\n", ep->name);
+		list_add(&req->list, &dev->rx_reqs);
+		break;
+
+	/* data overrun */
+	case -EOVERFLOW:
+		/* FALLTHROUGH */
+
+	default:
+		DBG(dev, "rx status %d\n", status);
+		list_add(&req->list, &dev->rx_reqs);
+		break;
+	}
+
+	wake_up_interruptible(&dev->rx_wait);
+	spin_unlock_irqrestore(&dev->lock, flags);
+}
+
+static void tx_complete(struct usb_ep *ep, struct usb_request *req)
+{
+	struct printer_dev	*dev = ep->driver_data;
+
+	switch (req->status) {
+	default:
+		VDBG(dev, "tx err %d\n", req->status);
+		/* FALLTHROUGH */
+	case -ECONNRESET:		/* unlink */
+	case -ESHUTDOWN:		/* disconnect etc */
+		break;
+	case 0:
+		break;
+	}
+
+	spin_lock(&dev->lock);
+	/* Take the request struct off the active list and put it on the
+	 * free list.
+	 */
+	list_del_init(&req->list);
+	list_add(&req->list, &dev->tx_reqs);
+	wake_up_interruptible(&dev->tx_wait);
+	if (likely(list_empty(&dev->tx_reqs_active)))
+		wake_up_interruptible(&dev->tx_flush_wait);
+
+	spin_unlock(&dev->lock);
+}
+
+/*-------------------------------------------------------------------------*/
+
+static int
+printer_open(struct inode *inode, struct file *fd)
+{
+	struct printer_dev	*dev;
+	unsigned long		flags;
+	int			ret = -EBUSY;
+
+	dev = container_of(inode->i_cdev, struct printer_dev, printer_cdev);
+
+	spin_lock_irqsave(&dev->lock, flags);
+
+	if (!dev->printer_cdev_open) {
+		dev->printer_cdev_open = 1;
+		fd->private_data = dev;
+		ret = 0;
+		/* Change the printer status to show that it's on-line. */
+		dev->printer_status |= PRINTER_SELECTED;
+	}
+
+	spin_unlock_irqrestore(&dev->lock, flags);
+
+	DBG(dev, "printer_open returned %x\n", ret);
+	return ret;
+}
+
+static int
+printer_close(struct inode *inode, struct file *fd)
+{
+	struct printer_dev	*dev = fd->private_data;
+	unsigned long		flags;
+
+	spin_lock_irqsave(&dev->lock, flags);
+	dev->printer_cdev_open = 0;
+	fd->private_data = NULL;
+	/* Change printer status to show that the printer is off-line. */
+	dev->printer_status &= ~PRINTER_SELECTED;
+	spin_unlock_irqrestore(&dev->lock, flags);
+
+	DBG(dev, "printer_close\n");
+
+	return 0;
+}
+
+/* This function must be called with interrupts turned off. */
+static void
+setup_rx_reqs(struct printer_dev *dev)
+{
+	struct usb_request              *req;
+
+	while (likely(!list_empty(&dev->rx_reqs))) {
+		int error;
+
+		req = container_of(dev->rx_reqs.next,
+				struct usb_request, list);
+		list_del_init(&req->list);
+
+		/* The USB Host sends us whatever amount of data it wants to
+		 * so we always set the length field to the full USB_BUFSIZE.
+		 * If the amount of data is more than the read() caller asked
+		 * for it will be stored in the request buffer until it is
+		 * asked for by read().
+		 */
+		req->length = USB_BUFSIZE;
+		req->complete = rx_complete;
+
+		/* here, we unlock, and only unlock, to avoid deadlock. */
+		spin_unlock(&dev->lock);
+		error = usb_ep_queue(dev->out_ep, req, GFP_ATOMIC);
+		spin_lock(&dev->lock);
+		if (error) {
+			DBG(dev, "rx submit --> %d\n", error);
+			list_add(&req->list, &dev->rx_reqs);
+			break;
+		}
+		/* if the req is empty, then add it into dev->rx_reqs_active. */
+		else if (list_empty(&req->list))
+			list_add(&req->list, &dev->rx_reqs_active);
+	}
+}
+
+static ssize_t
+printer_read(struct file *fd, char __user *buf, size_t len, loff_t *ptr)
+{
+	struct printer_dev		*dev = fd->private_data;
+	unsigned long			flags;
+	size_t				size;
+	size_t				bytes_copied;
+	struct usb_request		*req;
+	/* This is a pointer to the current USB rx request. */
+	struct usb_request		*current_rx_req;
+	/* This is the number of bytes in the current rx buffer. */
+	size_t				current_rx_bytes;
+	/* This is a pointer to the current rx buffer. */
+	u8				*current_rx_buf;
+
+	if (len == 0)
+		return -EINVAL;
+
+	DBG(dev, "printer_read trying to read %d bytes\n", (int)len);
+
+	mutex_lock(&dev->lock_printer_io);
+	spin_lock_irqsave(&dev->lock, flags);
+
+	/* We will use this flag later to check if a printer reset happened
+	 * after we turn interrupts back on.
+	 */
+	dev->reset_printer = 0;
+
+	setup_rx_reqs(dev);
+
+	bytes_copied = 0;
+	current_rx_req = dev->current_rx_req;
+	current_rx_bytes = dev->current_rx_bytes;
+	current_rx_buf = dev->current_rx_buf;
+	dev->current_rx_req = NULL;
+	dev->current_rx_bytes = 0;
+	dev->current_rx_buf = NULL;
+
+	/* Check if there is any data in the read buffers. Please note that
+	 * current_rx_bytes is the number of bytes in the current rx buffer.
+	 * If it is zero then check if there are any other rx_buffers that
+	 * are on the completed list. We are only out of data if all rx
+	 * buffers are empty.
+	 */
+	if ((current_rx_bytes == 0) &&
+			(likely(list_empty(&dev->rx_buffers)))) {
+		/* Turn interrupts back on before sleeping. */
+		spin_unlock_irqrestore(&dev->lock, flags);
+
+		/*
+		 * If no data is available check if this is a NON-Blocking
+		 * call or not.
+		 */
+		if (fd->f_flags & (O_NONBLOCK|O_NDELAY)) {
+			mutex_unlock(&dev->lock_printer_io);
+			return -EAGAIN;
+		}
+
+		/* Sleep until data is available */
+		wait_event_interruptible(dev->rx_wait,
+				(likely(!list_empty(&dev->rx_buffers))));
+		spin_lock_irqsave(&dev->lock, flags);
+	}
+
+	/* We have data to return then copy it to the caller's buffer.*/
+	while ((current_rx_bytes || likely(!list_empty(&dev->rx_buffers)))
+			&& len) {
+		if (current_rx_bytes == 0) {
+			req = container_of(dev->rx_buffers.next,
+					struct usb_request, list);
+			list_del_init(&req->list);
+
+			if (req->actual && req->buf) {
+				current_rx_req = req;
+				current_rx_bytes = req->actual;
+				current_rx_buf = req->buf;
+			} else {
+				list_add(&req->list, &dev->rx_reqs);
+				continue;
+			}
+		}
+
+		/* Don't leave irqs off while doing memory copies */
+		spin_unlock_irqrestore(&dev->lock, flags);
+
+		if (len > current_rx_bytes)
+			size = current_rx_bytes;
+		else
+			size = len;
+
+		size -= copy_to_user(buf, current_rx_buf, size);
+		bytes_copied += size;
+		len -= size;
+		buf += size;
+
+		spin_lock_irqsave(&dev->lock, flags);
+
+		/* We've disconnected or reset so return. */
+		if (dev->reset_printer) {
+			list_add(&current_rx_req->list, &dev->rx_reqs);
+			spin_unlock_irqrestore(&dev->lock, flags);
+			mutex_unlock(&dev->lock_printer_io);
+			return -EAGAIN;
+		}
+
+		/* If we not returning all the data left in this RX request
+		 * buffer then adjust the amount of data left in the buffer.
+		 * Othewise if we are done with this RX request buffer then
+		 * requeue it to get any incoming data from the USB host.
+		 */
+		if (size < current_rx_bytes) {
+			current_rx_bytes -= size;
+			current_rx_buf += size;
+		} else {
+			list_add(&current_rx_req->list, &dev->rx_reqs);
+			current_rx_bytes = 0;
+			current_rx_buf = NULL;
+			current_rx_req = NULL;
+		}
+	}
+
+	dev->current_rx_req = current_rx_req;
+	dev->current_rx_bytes = current_rx_bytes;
+	dev->current_rx_buf = current_rx_buf;
+
+	spin_unlock_irqrestore(&dev->lock, flags);
+	mutex_unlock(&dev->lock_printer_io);
+
+	DBG(dev, "printer_read returned %d bytes\n", (int)bytes_copied);
+
+	if (bytes_copied)
+		return bytes_copied;
+	else
+		return -EAGAIN;
+}
+
+static ssize_t
+printer_write(struct file *fd, const char __user *buf, size_t len, loff_t *ptr)
+{
+	struct printer_dev	*dev = fd->private_data;
+	unsigned long		flags;
+	size_t			size;	/* Amount of data in a TX request. */
+	size_t			bytes_copied = 0;
+	struct usb_request	*req;
+
+	DBG(dev, "printer_write trying to send %d bytes\n", (int)len);
+
+	if (len == 0)
+		return -EINVAL;
+
+	mutex_lock(&dev->lock_printer_io);
+	spin_lock_irqsave(&dev->lock, flags);
+
+	/* Check if a printer reset happens while we have interrupts on */
+	dev->reset_printer = 0;
+
+	/* Check if there is any available write buffers */
+	if (likely(list_empty(&dev->tx_reqs))) {
+		/* Turn interrupts back on before sleeping. */
+		spin_unlock_irqrestore(&dev->lock, flags);
+
+		/*
+		 * If write buffers are available check if this is
+		 * a NON-Blocking call or not.
+		 */
+		if (fd->f_flags & (O_NONBLOCK|O_NDELAY)) {
+			mutex_unlock(&dev->lock_printer_io);
+			return -EAGAIN;
+		}
+
+		/* Sleep until a write buffer is available */
+		wait_event_interruptible(dev->tx_wait,
+				(likely(!list_empty(&dev->tx_reqs))));
+		spin_lock_irqsave(&dev->lock, flags);
+	}
+
+	while (likely(!list_empty(&dev->tx_reqs)) && len) {
+
+		if (len > USB_BUFSIZE)
+			size = USB_BUFSIZE;
+		else
+			size = len;
+
+		req = container_of(dev->tx_reqs.next, struct usb_request,
+				list);
+		list_del_init(&req->list);
+
+		req->complete = tx_complete;
+		req->length = size;
+
+		/* Check if we need to send a zero length packet. */
+		if (len > size)
+			/* They will be more TX requests so no yet. */
+			req->zero = 0;
+		else
+			/* If the data amount is not a multiple of the
+			 * maxpacket size then send a zero length packet.
+			 */
+			req->zero = ((len % dev->in_ep->maxpacket) == 0);
+
+		/* Don't leave irqs off while doing memory copies */
+		spin_unlock_irqrestore(&dev->lock, flags);
+
+		if (copy_from_user(req->buf, buf, size)) {
+			list_add(&req->list, &dev->tx_reqs);
+			mutex_unlock(&dev->lock_printer_io);
+			return bytes_copied;
+		}
+
+		bytes_copied += size;
+		len -= size;
+		buf += size;
+
+		spin_lock_irqsave(&dev->lock, flags);
+
+		/* We've disconnected or reset so free the req and buffer */
+		if (dev->reset_printer) {
+			list_add(&req->list, &dev->tx_reqs);
+			spin_unlock_irqrestore(&dev->lock, flags);
+			mutex_unlock(&dev->lock_printer_io);
+			return -EAGAIN;
+		}
+
+		if (usb_ep_queue(dev->in_ep, req, GFP_ATOMIC)) {
+			list_add(&req->list, &dev->tx_reqs);
+			spin_unlock_irqrestore(&dev->lock, flags);
+			mutex_unlock(&dev->lock_printer_io);
+			return -EAGAIN;
+		}
+
+		list_add(&req->list, &dev->tx_reqs_active);
+
+	}
+
+	spin_unlock_irqrestore(&dev->lock, flags);
+	mutex_unlock(&dev->lock_printer_io);
+
+	DBG(dev, "printer_write sent %d bytes\n", (int)bytes_copied);
+
+	if (bytes_copied)
+		return bytes_copied;
+	else
+		return -EAGAIN;
+}
+
+static int
+printer_fsync(struct file *fd, loff_t start, loff_t end, int datasync)
+{
+	struct printer_dev	*dev = fd->private_data;
+	struct inode *inode = file_inode(fd);
+	unsigned long		flags;
+	int			tx_list_empty;
+
+	mutex_lock(&inode->i_mutex);
+	spin_lock_irqsave(&dev->lock, flags);
+	tx_list_empty = (likely(list_empty(&dev->tx_reqs)));
+	spin_unlock_irqrestore(&dev->lock, flags);
+
+	if (!tx_list_empty) {
+		/* Sleep until all data has been sent */
+		wait_event_interruptible(dev->tx_flush_wait,
+				(likely(list_empty(&dev->tx_reqs_active))));
+	}
+	mutex_unlock(&inode->i_mutex);
+
+	return 0;
+}
+
+static unsigned int
+printer_poll(struct file *fd, poll_table *wait)
+{
+	struct printer_dev	*dev = fd->private_data;
+	unsigned long		flags;
+	int			status = 0;
+
+	mutex_lock(&dev->lock_printer_io);
+	spin_lock_irqsave(&dev->lock, flags);
+	setup_rx_reqs(dev);
+	spin_unlock_irqrestore(&dev->lock, flags);
+	mutex_unlock(&dev->lock_printer_io);
+
+	poll_wait(fd, &dev->rx_wait, wait);
+	poll_wait(fd, &dev->tx_wait, wait);
+
+	spin_lock_irqsave(&dev->lock, flags);
+	if (likely(!list_empty(&dev->tx_reqs)))
+		status |= POLLOUT | POLLWRNORM;
+
+	if (likely(dev->current_rx_bytes) ||
+			likely(!list_empty(&dev->rx_buffers)))
+		status |= POLLIN | POLLRDNORM;
+
+	spin_unlock_irqrestore(&dev->lock, flags);
+
+	return status;
+}
+
+static long
+printer_ioctl(struct file *fd, unsigned int code, unsigned long arg)
+{
+	struct printer_dev	*dev = fd->private_data;
+	unsigned long		flags;
+	int			status = 0;
+
+	DBG(dev, "printer_ioctl: cmd=0x%4.4x, arg=%lu\n", code, arg);
+
+	/* handle ioctls */
+
+	spin_lock_irqsave(&dev->lock, flags);
+
+	switch (code) {
+	case GADGET_GET_PRINTER_STATUS:
+		status = (int)dev->printer_status;
+		break;
+	case GADGET_SET_PRINTER_STATUS:
+		dev->printer_status = (u8)arg;
+		break;
+	default:
+		/* could not handle ioctl */
+		DBG(dev, "printer_ioctl: ERROR cmd=0x%4.4xis not supported\n",
+				code);
+		status = -ENOTTY;
+	}
+
+	spin_unlock_irqrestore(&dev->lock, flags);
+
+	return status;
+}
+
+/* used after endpoint configuration */
+static const struct file_operations printer_io_operations = {
+	.owner =	THIS_MODULE,
+	.open =		printer_open,
+	.read =		printer_read,
+	.write =	printer_write,
+	.fsync =	printer_fsync,
+	.poll =		printer_poll,
+	.unlocked_ioctl = printer_ioctl,
+	.release =	printer_close,
+	.llseek =	noop_llseek,
+};
+
+/*-------------------------------------------------------------------------*/
+
+static int
+set_printer_interface(struct printer_dev *dev)
+{
+	int			result = 0;
+
+	dev->in_ep->desc = ep_desc(dev->gadget, &fs_ep_in_desc, &hs_ep_in_desc,
+				&ss_ep_in_desc);
+	dev->in_ep->driver_data = dev;
+
+	dev->out_ep->desc = ep_desc(dev->gadget, &fs_ep_out_desc,
+				    &hs_ep_out_desc, &ss_ep_out_desc);
+	dev->out_ep->driver_data = dev;
+
+	result = usb_ep_enable(dev->in_ep);
+	if (result != 0) {
+		DBG(dev, "enable %s --> %d\n", dev->in_ep->name, result);
+		goto done;
+	}
+
+	result = usb_ep_enable(dev->out_ep);
+	if (result != 0) {
+		DBG(dev, "enable %s --> %d\n", dev->in_ep->name, result);
+		goto done;
+	}
+
+done:
+	/* on error, disable any endpoints  */
+	if (result != 0) {
+		(void) usb_ep_disable(dev->in_ep);
+		(void) usb_ep_disable(dev->out_ep);
+		dev->in_ep->desc = NULL;
+		dev->out_ep->desc = NULL;
+	}
+
+	/* caller is responsible for cleanup on error */
+	return result;
+}
+
+static void printer_reset_interface(struct printer_dev *dev)
+{
+	if (dev->interface < 0)
+		return;
+
+	DBG(dev, "%s\n", __func__);
+
+	if (dev->in_ep->desc)
+		usb_ep_disable(dev->in_ep);
+
+	if (dev->out_ep->desc)
+		usb_ep_disable(dev->out_ep);
+
+	dev->in_ep->desc = NULL;
+	dev->out_ep->desc = NULL;
+	dev->interface = -1;
+}
+
+/* Change our operational Interface. */
+static int set_interface(struct printer_dev *dev, unsigned number)
+{
+	int			result = 0;
+
+	/* Free the current interface */
+	printer_reset_interface(dev);
+
+	result = set_printer_interface(dev);
+	if (result)
+		printer_reset_interface(dev);
+	else
+		dev->interface = number;
+
+	if (!result)
+		INFO(dev, "Using interface %x\n", number);
+
+	return result;
+}
+
+static void printer_soft_reset(struct printer_dev *dev)
+{
+	struct usb_request	*req;
+
+	INFO(dev, "Received Printer Reset Request\n");
+
+	if (usb_ep_disable(dev->in_ep))
+		DBG(dev, "Failed to disable USB in_ep\n");
+	if (usb_ep_disable(dev->out_ep))
+		DBG(dev, "Failed to disable USB out_ep\n");
+
+	if (dev->current_rx_req != NULL) {
+		list_add(&dev->current_rx_req->list, &dev->rx_reqs);
+		dev->current_rx_req = NULL;
+	}
+	dev->current_rx_bytes = 0;
+	dev->current_rx_buf = NULL;
+	dev->reset_printer = 1;
+
+	while (likely(!(list_empty(&dev->rx_buffers)))) {
+		req = container_of(dev->rx_buffers.next, struct usb_request,
+				list);
+		list_del_init(&req->list);
+		list_add(&req->list, &dev->rx_reqs);
+	}
+
+	while (likely(!(list_empty(&dev->rx_reqs_active)))) {
+		req = container_of(dev->rx_buffers.next, struct usb_request,
+				list);
+		list_del_init(&req->list);
+		list_add(&req->list, &dev->rx_reqs);
+	}
+
+	while (likely(!(list_empty(&dev->tx_reqs_active)))) {
+		req = container_of(dev->tx_reqs_active.next,
+				struct usb_request, list);
+		list_del_init(&req->list);
+		list_add(&req->list, &dev->tx_reqs);
+	}
+
+	if (usb_ep_enable(dev->in_ep))
+		DBG(dev, "Failed to enable USB in_ep\n");
+	if (usb_ep_enable(dev->out_ep))
+		DBG(dev, "Failed to enable USB out_ep\n");
+
+	wake_up_interruptible(&dev->rx_wait);
+	wake_up_interruptible(&dev->tx_wait);
+	wake_up_interruptible(&dev->tx_flush_wait);
+}
+
+/*-------------------------------------------------------------------------*/
+
+static bool gprinter_req_match(struct usb_function *f,
+			       const struct usb_ctrlrequest *ctrl)
+{
+	struct printer_dev	*dev = func_to_printer(f);
+	u16			w_index = le16_to_cpu(ctrl->wIndex);
+	u16			w_value = le16_to_cpu(ctrl->wValue);
+	u16			w_length = le16_to_cpu(ctrl->wLength);
+
+	if ((ctrl->bRequestType & USB_RECIP_MASK) != USB_RECIP_INTERFACE ||
+	    (ctrl->bRequestType & USB_TYPE_MASK) != USB_TYPE_CLASS)
+		return false;
+
+	switch (ctrl->bRequest) {
+	case GET_DEVICE_ID:
+		w_index >>= 8;
+		if (w_length <= PNP_STRING_LEN &&
+		    (USB_DIR_IN & ctrl->bRequestType))
+			break;
+		return false;
+	case GET_PORT_STATUS:
+		if (!w_value && w_length == 1 &&
+		    (USB_DIR_IN & ctrl->bRequestType))
+			break;
+		return false;
+	case SOFT_RESET:
+		if (!w_value && !w_length &&
+		   !(USB_DIR_IN & ctrl->bRequestType))
+			break;
+		/* fall through */
+	default:
+		return false;
+	}
+	return w_index == dev->interface;
+}
+
+/*
+ * The setup() callback implements all the ep0 functionality that's not
+ * handled lower down.
+ */
+static int printer_func_setup(struct usb_function *f,
+		const struct usb_ctrlrequest *ctrl)
+{
+	struct printer_dev *dev = func_to_printer(f);
+	struct usb_composite_dev *cdev = f->config->cdev;
+	struct usb_request	*req = cdev->req;
+	int			value = -EOPNOTSUPP;
+	u16			wIndex = le16_to_cpu(ctrl->wIndex);
+	u16			wValue = le16_to_cpu(ctrl->wValue);
+	u16			wLength = le16_to_cpu(ctrl->wLength);
+
+	DBG(dev, "ctrl req%02x.%02x v%04x i%04x l%d\n",
+		ctrl->bRequestType, ctrl->bRequest, wValue, wIndex, wLength);
+
+	switch (ctrl->bRequestType&USB_TYPE_MASK) {
+	case USB_TYPE_CLASS:
+		switch (ctrl->bRequest) {
+		case GET_DEVICE_ID: /* Get the IEEE-1284 PNP String */
+			/* Only one printer interface is supported. */
+			if ((wIndex>>8) != dev->interface)
+				break;
+
+			value = (dev->pnp_string[0] << 8) | dev->pnp_string[1];
+			memcpy(req->buf, dev->pnp_string, value);
+			DBG(dev, "1284 PNP String: %x %s\n", value,
+					&dev->pnp_string[2]);
+			break;
+
+		case GET_PORT_STATUS: /* Get Port Status */
+			/* Only one printer interface is supported. */
+			if (wIndex != dev->interface)
+				break;
+
+			*(u8 *)req->buf = dev->printer_status;
+			value = min_t(u16, wLength, 1);
+			break;
+
+		case SOFT_RESET: /* Soft Reset */
+			/* Only one printer interface is supported. */
+			if (wIndex != dev->interface)
+				break;
+
+			printer_soft_reset(dev);
+
+			value = 0;
+			break;
+
+		default:
+			goto unknown;
+		}
+		break;
+
+	default:
+unknown:
+		VDBG(dev,
+			"unknown ctrl req%02x.%02x v%04x i%04x l%d\n",
+			ctrl->bRequestType, ctrl->bRequest,
+			wValue, wIndex, wLength);
+		break;
+	}
+	/* host either stalls (value < 0) or reports success */
+	if (value >= 0) {
+		req->length = value;
+		req->zero = value < wLength;
+		value = usb_ep_queue(cdev->gadget->ep0, req, GFP_ATOMIC);
+		if (value < 0) {
+			ERROR(dev, "%s:%d Error!\n", __func__, __LINE__);
+			req->status = 0;
+		}
+	}
+	return value;
+}
+
+static int printer_func_bind(struct usb_configuration *c,
+		struct usb_function *f)
+{
+	struct usb_gadget *gadget = c->cdev->gadget;
+	struct printer_dev *dev = func_to_printer(f);
+	struct device *pdev;
+	struct usb_composite_dev *cdev = c->cdev;
+	struct usb_ep *in_ep;
+	struct usb_ep *out_ep = NULL;
+	struct usb_request *req;
+	dev_t devt;
+	int id;
+	int ret;
+	u32 i;
+
+	id = usb_interface_id(c, f);
+	if (id < 0)
+		return id;
+	intf_desc.bInterfaceNumber = id;
+
+	/* finish hookup to lower layer ... */
+	dev->gadget = gadget;
+
+	/* all we really need is bulk IN/OUT */
+	in_ep = usb_ep_autoconfig(cdev->gadget, &fs_ep_in_desc);
+	if (!in_ep) {
+autoconf_fail:
+		dev_err(&cdev->gadget->dev, "can't autoconfigure on %s\n",
+			cdev->gadget->name);
+		return -ENODEV;
+	}
+	in_ep->driver_data = in_ep;	/* claim */
+
+	out_ep = usb_ep_autoconfig(cdev->gadget, &fs_ep_out_desc);
+	if (!out_ep)
+		goto autoconf_fail;
+	out_ep->driver_data = out_ep;	/* claim */
+
+	/* assumes that all endpoints are dual-speed */
+	hs_ep_in_desc.bEndpointAddress = fs_ep_in_desc.bEndpointAddress;
+	hs_ep_out_desc.bEndpointAddress = fs_ep_out_desc.bEndpointAddress;
+	ss_ep_in_desc.bEndpointAddress = fs_ep_in_desc.bEndpointAddress;
+	ss_ep_out_desc.bEndpointAddress = fs_ep_out_desc.bEndpointAddress;
+
+	ret = usb_assign_descriptors(f, fs_printer_function,
+			hs_printer_function, ss_printer_function);
+	if (ret)
+		return ret;
+
+	dev->in_ep = in_ep;
+	dev->out_ep = out_ep;
+
+	ret = -ENOMEM;
+	for (i = 0; i < dev->q_len; i++) {
+		req = printer_req_alloc(dev->in_ep, USB_BUFSIZE, GFP_KERNEL);
+		if (!req)
+			goto fail_tx_reqs;
+		list_add(&req->list, &dev->tx_reqs);
+	}
+
+	for (i = 0; i < dev->q_len; i++) {
+		req = printer_req_alloc(dev->out_ep, USB_BUFSIZE, GFP_KERNEL);
+		if (!req)
+			goto fail_rx_reqs;
+		list_add(&req->list, &dev->rx_reqs);
+	}
+
+	/* Setup the sysfs files for the printer gadget. */
+	devt = MKDEV(major, dev->minor);
+	pdev = device_create(usb_gadget_class, NULL, devt,
+				  NULL, "g_printer%d", dev->minor);
+	if (IS_ERR(pdev)) {
+		ERROR(dev, "Failed to create device: g_printer\n");
+		ret = PTR_ERR(pdev);
+		goto fail_rx_reqs;
+	}
+
+	/*
+	 * Register a character device as an interface to a user mode
+	 * program that handles the printer specific functionality.
+	 */
+	cdev_init(&dev->printer_cdev, &printer_io_operations);
+	dev->printer_cdev.owner = THIS_MODULE;
+	ret = cdev_add(&dev->printer_cdev, devt, 1);
+	if (ret) {
+		ERROR(dev, "Failed to open char device\n");
+		goto fail_cdev_add;
+	}
+
+	return 0;
+
+fail_cdev_add:
+	device_destroy(usb_gadget_class, devt);
+
+fail_rx_reqs:
+	while (!list_empty(&dev->rx_reqs)) {
+		req = container_of(dev->rx_reqs.next, struct usb_request, list);
+		list_del(&req->list);
+		printer_req_free(dev->out_ep, req);
+	}
+
+fail_tx_reqs:
+	while (!list_empty(&dev->tx_reqs)) {
+		req = container_of(dev->tx_reqs.next, struct usb_request, list);
+		list_del(&req->list);
+		printer_req_free(dev->in_ep, req);
+	}
+
+	return ret;
+
+}
+
+static int printer_func_set_alt(struct usb_function *f,
+		unsigned intf, unsigned alt)
+{
+	struct printer_dev *dev = func_to_printer(f);
+	int ret = -ENOTSUPP;
+
+	if (!alt)
+		ret = set_interface(dev, intf);
+
+	return ret;
+}
+
+static void printer_func_disable(struct usb_function *f)
+{
+	struct printer_dev *dev = func_to_printer(f);
+	unsigned long		flags;
+
+	DBG(dev, "%s\n", __func__);
+
+	spin_lock_irqsave(&dev->lock, flags);
+	printer_reset_interface(dev);
+	spin_unlock_irqrestore(&dev->lock, flags);
+}
+
+static inline struct f_printer_opts
+*to_f_printer_opts(struct config_item *item)
+{
+	return container_of(to_config_group(item), struct f_printer_opts,
+			    func_inst.group);
+}
+
+CONFIGFS_ATTR_STRUCT(f_printer_opts);
+CONFIGFS_ATTR_OPS(f_printer_opts);
+
+static void printer_attr_release(struct config_item *item)
+{
+	struct f_printer_opts *opts = to_f_printer_opts(item);
+
+	usb_put_function_instance(&opts->func_inst);
+}
+
+static struct configfs_item_operations printer_item_ops = {
+	.release	= printer_attr_release,
+	.show_attribute	= f_printer_opts_attr_show,
+	.store_attribute = f_printer_opts_attr_store,
+};
+
+static ssize_t f_printer_opts_pnp_string_show(struct f_printer_opts *opts,
+					      char *page)
+{
+	int result;
+
+	mutex_lock(&opts->lock);
+	result = strlcpy(page, opts->pnp_string + 2, PNP_STRING_LEN - 2);
+	mutex_unlock(&opts->lock);
+
+	return result;
+}
+
+static ssize_t f_printer_opts_pnp_string_store(struct f_printer_opts *opts,
+					       const char *page, size_t len)
+{
+	int result, l;
+
+	mutex_lock(&opts->lock);
+	result = strlcpy(opts->pnp_string + 2, page, PNP_STRING_LEN - 2);
+	l = strlen(opts->pnp_string + 2) + 2;
+	opts->pnp_string[0] = (l >> 8) & 0xFF;
+	opts->pnp_string[1] = l & 0xFF;
+	mutex_unlock(&opts->lock);
+
+	return result;
+}
+
+static struct f_printer_opts_attribute f_printer_opts_pnp_string =
+	__CONFIGFS_ATTR(pnp_string, S_IRUGO | S_IWUSR,
+			f_printer_opts_pnp_string_show,
+			f_printer_opts_pnp_string_store);
+
+static ssize_t f_printer_opts_q_len_show(struct f_printer_opts *opts,
+					 char *page)
+{
+	int result;
+
+	mutex_lock(&opts->lock);
+	result = sprintf(page, "%d\n", opts->q_len);
+	mutex_unlock(&opts->lock);
+
+	return result;
+}
+
+static ssize_t f_printer_opts_q_len_store(struct f_printer_opts *opts,
+					  const char *page, size_t len)
+{
+	int ret;
+	u16 num;
+
+	mutex_lock(&opts->lock);
+	if (opts->refcnt) {
+		ret = -EBUSY;
+		goto end;
+	}
+
+	ret = kstrtou16(page, 0, &num);
+	if (ret)
+		goto end;
+
+	opts->q_len = (unsigned)num;
+	ret = len;
+end:
+	mutex_unlock(&opts->lock);
+	return ret;
+}
+
+static struct f_printer_opts_attribute f_printer_opts_q_len =
+	__CONFIGFS_ATTR(q_len, S_IRUGO | S_IWUSR, f_printer_opts_q_len_show,
+			f_printer_opts_q_len_store);
+
+static struct configfs_attribute *printer_attrs[] = {
+	&f_printer_opts_pnp_string.attr,
+	&f_printer_opts_q_len.attr,
+	NULL,
+};
+
+static struct config_item_type printer_func_type = {
+	.ct_item_ops	= &printer_item_ops,
+	.ct_attrs	= printer_attrs,
+	.ct_owner	= THIS_MODULE,
+};
+
+static inline int gprinter_get_minor(void)
+{
+	return ida_simple_get(&printer_ida, 0, 0, GFP_KERNEL);
+}
+
+static inline void gprinter_put_minor(int minor)
+{
+	ida_simple_remove(&printer_ida, minor);
+}
+
+static int gprinter_setup(int);
+static void gprinter_cleanup(void);
+
+static void gprinter_free_inst(struct usb_function_instance *f)
+{
+	struct f_printer_opts *opts;
+
+	opts = container_of(f, struct f_printer_opts, func_inst);
+
+	mutex_lock(&printer_ida_lock);
+
+	gprinter_put_minor(opts->minor);
+	if (idr_is_empty(&printer_ida.idr))
+		gprinter_cleanup();
+
+	mutex_unlock(&printer_ida_lock);
+
+	kfree(opts);
+}
+
+static struct usb_function_instance *gprinter_alloc_inst(void)
+{
+	struct f_printer_opts *opts;
+	struct usb_function_instance *ret;
+	int status = 0;
+
+	opts = kzalloc(sizeof(*opts), GFP_KERNEL);
+	if (!opts)
+		return ERR_PTR(-ENOMEM);
+
+	mutex_init(&opts->lock);
+	opts->func_inst.free_func_inst = gprinter_free_inst;
+	ret = &opts->func_inst;
+
+	mutex_lock(&printer_ida_lock);
+
+	if (idr_is_empty(&printer_ida.idr)) {
+		status = gprinter_setup(PRINTER_MINORS);
+		if (status) {
+			ret = ERR_PTR(status);
+			kfree(opts);
+			goto unlock;
+		}
+	}
+
+	opts->minor = gprinter_get_minor();
+	if (opts->minor < 0) {
+		ret = ERR_PTR(opts->minor);
+		kfree(opts);
+		if (idr_is_empty(&printer_ida.idr))
+			gprinter_cleanup();
+		goto unlock;
+	}
+	config_group_init_type_name(&opts->func_inst.group, "",
+				    &printer_func_type);
+
+unlock:
+	mutex_unlock(&printer_ida_lock);
+	return ret;
+}
+
+static void gprinter_free(struct usb_function *f)
+{
+	struct printer_dev *dev = func_to_printer(f);
+	struct f_printer_opts *opts;
+
+	opts = container_of(f->fi, struct f_printer_opts, func_inst);
+	kfree(dev);
+	mutex_lock(&opts->lock);
+	--opts->refcnt;
+	mutex_unlock(&opts->lock);
+}
+
+static void printer_func_unbind(struct usb_configuration *c,
+		struct usb_function *f)
+{
+	struct printer_dev	*dev;
+	struct usb_request	*req;
+
+	dev = func_to_printer(f);
+
+	device_destroy(usb_gadget_class, MKDEV(major, dev->minor));
+
+	/* Remove Character Device */
+	cdev_del(&dev->printer_cdev);
+
+	/* we must already have been disconnected ... no i/o may be active */
+	WARN_ON(!list_empty(&dev->tx_reqs_active));
+	WARN_ON(!list_empty(&dev->rx_reqs_active));
+
+	/* Free all memory for this driver. */
+	while (!list_empty(&dev->tx_reqs)) {
+		req = container_of(dev->tx_reqs.next, struct usb_request,
+				list);
+		list_del(&req->list);
+		printer_req_free(dev->in_ep, req);
+	}
+
+	if (dev->current_rx_req != NULL)
+		printer_req_free(dev->out_ep, dev->current_rx_req);
+
+	while (!list_empty(&dev->rx_reqs)) {
+		req = container_of(dev->rx_reqs.next,
+				struct usb_request, list);
+		list_del(&req->list);
+		printer_req_free(dev->out_ep, req);
+	}
+
+	while (!list_empty(&dev->rx_buffers)) {
+		req = container_of(dev->rx_buffers.next,
+				struct usb_request, list);
+		list_del(&req->list);
+		printer_req_free(dev->out_ep, req);
+	}
+	usb_free_all_descriptors(f);
+}
+
+static struct usb_function *gprinter_alloc(struct usb_function_instance *fi)
+{
+	struct printer_dev	*dev;
+	struct f_printer_opts	*opts;
+
+	opts = container_of(fi, struct f_printer_opts, func_inst);
+
+	mutex_lock(&opts->lock);
+	if (opts->minor >= minors) {
+		mutex_unlock(&opts->lock);
+		return ERR_PTR(-ENOENT);
+	}
+
+	dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+	if (!dev) {
+		mutex_unlock(&opts->lock);
+		return ERR_PTR(-ENOMEM);
+	}
+
+	++opts->refcnt;
+	dev->minor = opts->minor;
+	dev->pnp_string = opts->pnp_string;
+	dev->q_len = opts->q_len;
+	mutex_unlock(&opts->lock);
+
+	dev->function.name = "printer";
+	dev->function.bind = printer_func_bind;
+	dev->function.setup = printer_func_setup;
+	dev->function.unbind = printer_func_unbind;
+	dev->function.set_alt = printer_func_set_alt;
+	dev->function.disable = printer_func_disable;
+	dev->function.req_match = gprinter_req_match;
+	dev->function.free_func = gprinter_free;
+
+	INIT_LIST_HEAD(&dev->tx_reqs);
+	INIT_LIST_HEAD(&dev->rx_reqs);
+	INIT_LIST_HEAD(&dev->rx_buffers);
+	INIT_LIST_HEAD(&dev->tx_reqs_active);
+	INIT_LIST_HEAD(&dev->rx_reqs_active);
+
+	spin_lock_init(&dev->lock);
+	mutex_init(&dev->lock_printer_io);
+	init_waitqueue_head(&dev->rx_wait);
+	init_waitqueue_head(&dev->tx_wait);
+	init_waitqueue_head(&dev->tx_flush_wait);
+
+	dev->interface = -1;
+	dev->printer_cdev_open = 0;
+	dev->printer_status = PRINTER_NOT_ERROR;
+	dev->current_rx_req = NULL;
+	dev->current_rx_bytes = 0;
+	dev->current_rx_buf = NULL;
+
+	return &dev->function;
+}
+
+DECLARE_USB_FUNCTION_INIT(printer, gprinter_alloc_inst, gprinter_alloc);
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Craig Nadler");
+
+static int gprinter_setup(int count)
+{
+	int status;
+	dev_t devt;
+
+	usb_gadget_class = class_create(THIS_MODULE, "usb_printer_gadget");
+	if (IS_ERR(usb_gadget_class)) {
+		status = PTR_ERR(usb_gadget_class);
+		usb_gadget_class = NULL;
+		pr_err("unable to create usb_gadget class %d\n", status);
+		return status;
+	}
+
+	status = alloc_chrdev_region(&devt, 0, count, "USB printer gadget");
+	if (status) {
+		pr_err("alloc_chrdev_region %d\n", status);
+		class_destroy(usb_gadget_class);
+		usb_gadget_class = NULL;
+		return status;
+	}
+
+	major = MAJOR(devt);
+	minors = count;
+
+	return status;
+}
+
+static void gprinter_cleanup(void)
+{
+	if (major) {
+		unregister_chrdev_region(MKDEV(major, 0), minors);
+		major = minors = 0;
+	}
+	class_destroy(usb_gadget_class);
+	usb_gadget_class = NULL;
+}
diff --git a/drivers/usb/gadget/function/f_sourcesink.c b/drivers/usb/gadget/function/f_sourcesink.c
index e07c50c..3a5ae99 100644
--- a/drivers/usb/gadget/function/f_sourcesink.c
+++ b/drivers/usb/gadget/function/f_sourcesink.c
@@ -23,15 +23,6 @@
 #include "gadget_chips.h"
 #include "u_f.h"
 
-#define USB_MS_TO_SS_INTERVAL(x) USB_MS_TO_HS_INTERVAL(x)
-
-enum eptype {
-	EP_CONTROL = 0,
-	EP_BULK,
-	EP_ISOC,
-	EP_INTERRUPT,
-};
-
 /*
  * SOURCE/SINK FUNCTION ... a primary testing vehicle for USB peripheral
  * controller drivers.
@@ -64,8 +55,6 @@ struct f_sourcesink {
 	struct usb_ep		*out_ep;
 	struct usb_ep		*iso_in_ep;
 	struct usb_ep		*iso_out_ep;
-	struct usb_ep		*int_in_ep;
-	struct usb_ep		*int_out_ep;
 	int			cur_alt;
 };
 
@@ -79,10 +68,6 @@ static unsigned isoc_interval;
 static unsigned isoc_maxpacket;
 static unsigned isoc_mult;
 static unsigned isoc_maxburst;
-static unsigned int_interval; /* In ms */
-static unsigned int_maxpacket;
-static unsigned int_mult;
-static unsigned int_maxburst;
 static unsigned buflen;
 
 /*-------------------------------------------------------------------------*/
@@ -107,16 +92,6 @@ static struct usb_interface_descriptor source_sink_intf_alt1 = {
 	/* .iInterface		= DYNAMIC */
 };
 
-static struct usb_interface_descriptor source_sink_intf_alt2 = {
-	.bLength =		USB_DT_INTERFACE_SIZE,
-	.bDescriptorType =	USB_DT_INTERFACE,
-
-	.bAlternateSetting =	2,
-	.bNumEndpoints =	2,
-	.bInterfaceClass =	USB_CLASS_VENDOR_SPEC,
-	/* .iInterface		= DYNAMIC */
-};
-
 /* full speed support: */
 
 static struct usb_endpoint_descriptor fs_source_desc = {
@@ -155,26 +130,6 @@ static struct usb_endpoint_descriptor fs_iso_sink_desc = {
 	.bInterval =		4,
 };
 
-static struct usb_endpoint_descriptor fs_int_source_desc = {
-	.bLength =		USB_DT_ENDPOINT_SIZE,
-	.bDescriptorType =	USB_DT_ENDPOINT,
-
-	.bEndpointAddress =	USB_DIR_IN,
-	.bmAttributes =		USB_ENDPOINT_XFER_INT,
-	.wMaxPacketSize =	cpu_to_le16(64),
-	.bInterval =		GZERO_INT_INTERVAL,
-};
-
-static struct usb_endpoint_descriptor fs_int_sink_desc = {
-	.bLength =		USB_DT_ENDPOINT_SIZE,
-	.bDescriptorType =	USB_DT_ENDPOINT,
-
-	.bEndpointAddress =	USB_DIR_OUT,
-	.bmAttributes =		USB_ENDPOINT_XFER_INT,
-	.wMaxPacketSize =	cpu_to_le16(64),
-	.bInterval =		GZERO_INT_INTERVAL,
-};
-
 static struct usb_descriptor_header *fs_source_sink_descs[] = {
 	(struct usb_descriptor_header *) &source_sink_intf_alt0,
 	(struct usb_descriptor_header *) &fs_sink_desc,
@@ -185,10 +140,6 @@ static struct usb_descriptor_header *fs_source_sink_descs[] = {
 	(struct usb_descriptor_header *) &fs_source_desc,
 	(struct usb_descriptor_header *) &fs_iso_sink_desc,
 	(struct usb_descriptor_header *) &fs_iso_source_desc,
-	(struct usb_descriptor_header *) &source_sink_intf_alt2,
-#define FS_ALT_IFC_2_OFFSET	8
-	(struct usb_descriptor_header *) &fs_int_sink_desc,
-	(struct usb_descriptor_header *) &fs_int_source_desc,
 	NULL,
 };
 
@@ -228,24 +179,6 @@ static struct usb_endpoint_descriptor hs_iso_sink_desc = {
 	.bInterval =		4,
 };
 
-static struct usb_endpoint_descriptor hs_int_source_desc = {
-	.bLength =		USB_DT_ENDPOINT_SIZE,
-	.bDescriptorType =	USB_DT_ENDPOINT,
-
-	.bmAttributes =		USB_ENDPOINT_XFER_INT,
-	.wMaxPacketSize =	cpu_to_le16(1024),
-	.bInterval =		USB_MS_TO_HS_INTERVAL(GZERO_INT_INTERVAL),
-};
-
-static struct usb_endpoint_descriptor hs_int_sink_desc = {
-	.bLength =		USB_DT_ENDPOINT_SIZE,
-	.bDescriptorType =	USB_DT_ENDPOINT,
-
-	.bmAttributes =		USB_ENDPOINT_XFER_INT,
-	.wMaxPacketSize =	cpu_to_le16(1024),
-	.bInterval =		USB_MS_TO_HS_INTERVAL(GZERO_INT_INTERVAL),
-};
-
 static struct usb_descriptor_header *hs_source_sink_descs[] = {
 	(struct usb_descriptor_header *) &source_sink_intf_alt0,
 	(struct usb_descriptor_header *) &hs_source_desc,
@@ -256,10 +189,6 @@ static struct usb_descriptor_header *hs_source_sink_descs[] = {
 	(struct usb_descriptor_header *) &hs_sink_desc,
 	(struct usb_descriptor_header *) &hs_iso_source_desc,
 	(struct usb_descriptor_header *) &hs_iso_sink_desc,
-	(struct usb_descriptor_header *) &source_sink_intf_alt2,
-#define HS_ALT_IFC_2_OFFSET	8
-	(struct usb_descriptor_header *) &hs_int_source_desc,
-	(struct usb_descriptor_header *) &hs_int_sink_desc,
 	NULL,
 };
 
@@ -335,42 +264,6 @@ static struct usb_ss_ep_comp_descriptor ss_iso_sink_comp_desc = {
 	.wBytesPerInterval =	cpu_to_le16(1024),
 };
 
-static struct usb_endpoint_descriptor ss_int_source_desc = {
-	.bLength =		USB_DT_ENDPOINT_SIZE,
-	.bDescriptorType =	USB_DT_ENDPOINT,
-
-	.bmAttributes =		USB_ENDPOINT_XFER_INT,
-	.wMaxPacketSize =	cpu_to_le16(1024),
-	.bInterval =		USB_MS_TO_SS_INTERVAL(GZERO_INT_INTERVAL),
-};
-
-struct usb_ss_ep_comp_descriptor ss_int_source_comp_desc = {
-	.bLength =		USB_DT_SS_EP_COMP_SIZE,
-	.bDescriptorType =	USB_DT_SS_ENDPOINT_COMP,
-
-	.bMaxBurst =		0,
-	.bmAttributes =		0,
-	.wBytesPerInterval =	cpu_to_le16(1024),
-};
-
-static struct usb_endpoint_descriptor ss_int_sink_desc = {
-	.bLength =		USB_DT_ENDPOINT_SIZE,
-	.bDescriptorType =	USB_DT_ENDPOINT,
-
-	.bmAttributes =		USB_ENDPOINT_XFER_INT,
-	.wMaxPacketSize =	cpu_to_le16(1024),
-	.bInterval =		USB_MS_TO_SS_INTERVAL(GZERO_INT_INTERVAL),
-};
-
-struct usb_ss_ep_comp_descriptor ss_int_sink_comp_desc = {
-	.bLength =		USB_DT_SS_EP_COMP_SIZE,
-	.bDescriptorType =	USB_DT_SS_ENDPOINT_COMP,
-
-	.bMaxBurst =		0,
-	.bmAttributes =		0,
-	.wBytesPerInterval =	cpu_to_le16(1024),
-};
-
 static struct usb_descriptor_header *ss_source_sink_descs[] = {
 	(struct usb_descriptor_header *) &source_sink_intf_alt0,
 	(struct usb_descriptor_header *) &ss_source_desc,
@@ -387,12 +280,6 @@ static struct usb_descriptor_header *ss_source_sink_descs[] = {
 	(struct usb_descriptor_header *) &ss_iso_source_comp_desc,
 	(struct usb_descriptor_header *) &ss_iso_sink_desc,
 	(struct usb_descriptor_header *) &ss_iso_sink_comp_desc,
-	(struct usb_descriptor_header *) &source_sink_intf_alt2,
-#define SS_ALT_IFC_2_OFFSET	14
-	(struct usb_descriptor_header *) &ss_int_source_desc,
-	(struct usb_descriptor_header *) &ss_int_source_comp_desc,
-	(struct usb_descriptor_header *) &ss_int_sink_desc,
-	(struct usb_descriptor_header *) &ss_int_sink_comp_desc,
 	NULL,
 };
 
@@ -414,21 +301,6 @@ static struct usb_gadget_strings *sourcesink_strings[] = {
 };
 
 /*-------------------------------------------------------------------------*/
-static const char *get_ep_string(enum eptype ep_type)
-{
-	switch (ep_type) {
-	case EP_ISOC:
-		return "ISOC-";
-	case EP_INTERRUPT:
-		return "INTERRUPT-";
-	case EP_CONTROL:
-		return "CTRL-";
-	case EP_BULK:
-		return "BULK-";
-	default:
-		return "UNKNOWN-";
-	}
-}
 
 static inline struct usb_request *ss_alloc_ep_req(struct usb_ep *ep, int len)
 {
@@ -456,8 +328,7 @@ static void disable_ep(struct usb_composite_dev *cdev, struct usb_ep *ep)
 
 void disable_endpoints(struct usb_composite_dev *cdev,
 		struct usb_ep *in, struct usb_ep *out,
-		struct usb_ep *iso_in, struct usb_ep *iso_out,
-		struct usb_ep *int_in, struct usb_ep *int_out)
+		struct usb_ep *iso_in, struct usb_ep *iso_out)
 {
 	disable_ep(cdev, in);
 	disable_ep(cdev, out);
@@ -465,10 +336,6 @@ void disable_endpoints(struct usb_composite_dev *cdev,
 		disable_ep(cdev, iso_in);
 	if (iso_out)
 		disable_ep(cdev, iso_out);
-	if (int_in)
-		disable_ep(cdev, int_in);
-	if (int_out)
-		disable_ep(cdev, int_out);
 }
 
 static int
@@ -485,7 +352,6 @@ sourcesink_bind(struct usb_configuration *c, struct usb_function *f)
 		return id;
 	source_sink_intf_alt0.bInterfaceNumber = id;
 	source_sink_intf_alt1.bInterfaceNumber = id;
-	source_sink_intf_alt2.bInterfaceNumber = id;
 
 	/* allocate bulk endpoints */
 	ss->in_ep = usb_ep_autoconfig(cdev->gadget, &fs_source_desc);
@@ -546,55 +412,14 @@ no_iso:
 	if (isoc_maxpacket > 1024)
 		isoc_maxpacket = 1024;
 
-	/* sanity check the interrupt module parameters */
-	if (int_interval < 1)
-		int_interval = 1;
-	if (int_interval > 4096)
-		int_interval = 4096;
-	if (int_mult > 2)
-		int_mult = 2;
-	if (int_maxburst > 15)
-		int_maxburst = 15;
-
-	/* fill in the FS interrupt descriptors from the module parameters */
-	fs_int_source_desc.wMaxPacketSize = int_maxpacket > 64 ?
-						64 : int_maxpacket;
-	fs_int_source_desc.bInterval = int_interval > 255 ?
-						255 : int_interval;
-	fs_int_sink_desc.wMaxPacketSize = int_maxpacket > 64 ?
-						64 : int_maxpacket;
-	fs_int_sink_desc.bInterval = int_interval > 255 ?
-						255 : int_interval;
-
-	/* allocate int endpoints */
-	ss->int_in_ep = usb_ep_autoconfig(cdev->gadget, &fs_int_source_desc);
-	if (!ss->int_in_ep)
-		goto no_int;
-	ss->int_in_ep->driver_data = cdev;	/* claim */
-
-	ss->int_out_ep = usb_ep_autoconfig(cdev->gadget, &fs_int_sink_desc);
-	if (ss->int_out_ep) {
-		ss->int_out_ep->driver_data = cdev;	/* claim */
-	} else {
-		ss->int_in_ep->driver_data = NULL;
-		ss->int_in_ep = NULL;
-no_int:
-		fs_source_sink_descs[FS_ALT_IFC_2_OFFSET] = NULL;
-		hs_source_sink_descs[HS_ALT_IFC_2_OFFSET] = NULL;
-		ss_source_sink_descs[SS_ALT_IFC_2_OFFSET] = NULL;
-	}
-
-	if (int_maxpacket > 1024)
-		int_maxpacket = 1024;
-
 	/* support high speed hardware */
 	hs_source_desc.bEndpointAddress = fs_source_desc.bEndpointAddress;
 	hs_sink_desc.bEndpointAddress = fs_sink_desc.bEndpointAddress;
 
 	/*
-	 * Fill in the HS isoc and interrupt descriptors from the module
-	 * parameters. We assume that the user knows what they are doing and
-	 * won't give parameters that their UDC doesn't support.
+	 * Fill in the HS isoc descriptors from the module parameters.
+	 * We assume that the user knows what they are doing and won't
+	 * give parameters that their UDC doesn't support.
 	 */
 	hs_iso_source_desc.wMaxPacketSize = isoc_maxpacket;
 	hs_iso_source_desc.wMaxPacketSize |= isoc_mult << 11;
@@ -607,17 +432,6 @@ no_int:
 	hs_iso_sink_desc.bInterval = isoc_interval;
 	hs_iso_sink_desc.bEndpointAddress = fs_iso_sink_desc.bEndpointAddress;
 
-	hs_int_source_desc.wMaxPacketSize = int_maxpacket;
-	hs_int_source_desc.wMaxPacketSize |= int_mult << 11;
-	hs_int_source_desc.bInterval = USB_MS_TO_HS_INTERVAL(int_interval);
-	hs_int_source_desc.bEndpointAddress =
-		fs_int_source_desc.bEndpointAddress;
-
-	hs_int_sink_desc.wMaxPacketSize = int_maxpacket;
-	hs_int_sink_desc.wMaxPacketSize |= int_mult << 11;
-	hs_int_sink_desc.bInterval = USB_MS_TO_HS_INTERVAL(int_interval);
-	hs_int_sink_desc.bEndpointAddress = fs_int_sink_desc.bEndpointAddress;
-
 	/* support super speed hardware */
 	ss_source_desc.bEndpointAddress =
 		fs_source_desc.bEndpointAddress;
@@ -625,9 +439,9 @@ no_int:
 		fs_sink_desc.bEndpointAddress;
 
 	/*
-	 * Fill in the SS isoc and interrupt descriptors from the module
-	 * parameters. We assume that the user knows what they are doing and
-	 * won't give parameters that their UDC doesn't support.
+	 * Fill in the SS isoc descriptors from the module parameters.
+	 * We assume that the user knows what they are doing and won't
+	 * give parameters that their UDC doesn't support.
 	 */
 	ss_iso_source_desc.wMaxPacketSize = isoc_maxpacket;
 	ss_iso_source_desc.bInterval = isoc_interval;
@@ -646,37 +460,17 @@ no_int:
 		isoc_maxpacket * (isoc_mult + 1) * (isoc_maxburst + 1);
 	ss_iso_sink_desc.bEndpointAddress = fs_iso_sink_desc.bEndpointAddress;
 
-	ss_int_source_desc.wMaxPacketSize = int_maxpacket;
-	ss_int_source_desc.bInterval = USB_MS_TO_SS_INTERVAL(int_interval);
-	ss_int_source_comp_desc.bmAttributes = int_mult;
-	ss_int_source_comp_desc.bMaxBurst = int_maxburst;
-	ss_int_source_comp_desc.wBytesPerInterval =
-		int_maxpacket * (int_mult + 1) * (int_maxburst + 1);
-	ss_int_source_desc.bEndpointAddress =
-		fs_int_source_desc.bEndpointAddress;
-
-	ss_int_sink_desc.wMaxPacketSize = int_maxpacket;
-	ss_int_sink_desc.bInterval = USB_MS_TO_SS_INTERVAL(int_interval);
-	ss_int_sink_comp_desc.bmAttributes = int_mult;
-	ss_int_sink_comp_desc.bMaxBurst = int_maxburst;
-	ss_int_sink_comp_desc.wBytesPerInterval =
-		int_maxpacket * (int_mult + 1) * (int_maxburst + 1);
-	ss_int_sink_desc.bEndpointAddress = fs_int_sink_desc.bEndpointAddress;
-
 	ret = usb_assign_descriptors(f, fs_source_sink_descs,
 			hs_source_sink_descs, ss_source_sink_descs);
 	if (ret)
 		return ret;
 
-	DBG(cdev, "%s speed %s: IN/%s, OUT/%s, ISO-IN/%s, ISO-OUT/%s, "
-			"INT-IN/%s, INT-OUT/%s\n",
+	DBG(cdev, "%s speed %s: IN/%s, OUT/%s, ISO-IN/%s, ISO-OUT/%s\n",
 	    (gadget_is_superspeed(c->cdev->gadget) ? "super" :
 	     (gadget_is_dualspeed(c->cdev->gadget) ? "dual" : "full")),
 			f->name, ss->in_ep->name, ss->out_ep->name,
 			ss->iso_in_ep ? ss->iso_in_ep->name : "<none>",
-			ss->iso_out_ep ? ss->iso_out_ep->name : "<none>",
-			ss->int_in_ep ? ss->int_in_ep->name : "<none>",
-			ss->int_out_ep ? ss->int_out_ep->name : "<none>");
+			ss->iso_out_ep ? ss->iso_out_ep->name : "<none>");
 	return 0;
 }
 
@@ -807,15 +601,14 @@ static void source_sink_complete(struct usb_ep *ep, struct usb_request *req)
 }
 
 static int source_sink_start_ep(struct f_sourcesink *ss, bool is_in,
-		enum eptype ep_type, int speed)
+		bool is_iso, int speed)
 {
 	struct usb_ep		*ep;
 	struct usb_request	*req;
 	int			i, size, status;
 
 	for (i = 0; i < 8; i++) {
-		switch (ep_type) {
-		case EP_ISOC:
+		if (is_iso) {
 			switch (speed) {
 			case USB_SPEED_SUPER:
 				size = isoc_maxpacket * (isoc_mult + 1) *
@@ -831,28 +624,9 @@ static int source_sink_start_ep(struct f_sourcesink *ss, bool is_in,
 			}
 			ep = is_in ? ss->iso_in_ep : ss->iso_out_ep;
 			req = ss_alloc_ep_req(ep, size);
-			break;
-		case EP_INTERRUPT:
-			switch (speed) {
-			case USB_SPEED_SUPER:
-				size = int_maxpacket * (int_mult + 1) *
-						(int_maxburst + 1);
-				break;
-			case USB_SPEED_HIGH:
-				size = int_maxpacket * (int_mult + 1);
-				break;
-			default:
-				size = int_maxpacket > 1023 ?
-						1023 : int_maxpacket;
-				break;
-			}
-			ep = is_in ? ss->int_in_ep : ss->int_out_ep;
-			req = ss_alloc_ep_req(ep, size);
-			break;
-		default:
+		} else {
 			ep = is_in ? ss->in_ep : ss->out_ep;
 			req = ss_alloc_ep_req(ep, 0);
-			break;
 		}
 
 		if (!req)
@@ -870,12 +644,12 @@ static int source_sink_start_ep(struct f_sourcesink *ss, bool is_in,
 
 			cdev = ss->function.config->cdev;
 			ERROR(cdev, "start %s%s %s --> %d\n",
-				get_ep_string(ep_type), is_in ? "IN" : "OUT",
-				ep->name, status);
+			      is_iso ? "ISO-" : "", is_in ? "IN" : "OUT",
+			      ep->name, status);
 			free_ep_req(ep, req);
 		}
 
-		if (!(ep_type == EP_ISOC))
+		if (!is_iso)
 			break;
 	}
 
@@ -888,7 +662,7 @@ static void disable_source_sink(struct f_sourcesink *ss)
 
 	cdev = ss->function.config->cdev;
 	disable_endpoints(cdev, ss->in_ep, ss->out_ep, ss->iso_in_ep,
-			ss->iso_out_ep, ss->int_in_ep, ss->int_out_ep);
+			ss->iso_out_ep);
 	VDBG(cdev, "%s disabled\n", ss->function.name);
 }
 
@@ -900,62 +674,6 @@ enable_source_sink(struct usb_composite_dev *cdev, struct f_sourcesink *ss,
 	int					speed = cdev->gadget->speed;
 	struct usb_ep				*ep;
 
-	if (alt == 2) {
-		/* Configure for periodic interrupt endpoint */
-		ep = ss->int_in_ep;
-		if (ep) {
-			result = config_ep_by_speed(cdev->gadget,
-					&(ss->function), ep);
-			if (result)
-				return result;
-
-			result = usb_ep_enable(ep);
-			if (result < 0)
-				return result;
-
-			ep->driver_data = ss;
-			result = source_sink_start_ep(ss, true, EP_INTERRUPT,
-					speed);
-			if (result < 0) {
-fail1:
-				ep = ss->int_in_ep;
-				if (ep) {
-					usb_ep_disable(ep);
-					ep->driver_data = NULL;
-				}
-				return result;
-			}
-		}
-
-		/*
-		 * one interrupt endpoint reads (sinks) anything OUT (from the
-		 * host)
-		 */
-		ep = ss->int_out_ep;
-		if (ep) {
-			result = config_ep_by_speed(cdev->gadget,
-					&(ss->function), ep);
-			if (result)
-				goto fail1;
-
-			result = usb_ep_enable(ep);
-			if (result < 0)
-				goto fail1;
-
-			ep->driver_data = ss;
-			result = source_sink_start_ep(ss, false, EP_INTERRUPT,
-					speed);
-			if (result < 0) {
-				ep = ss->int_out_ep;
-				usb_ep_disable(ep);
-				ep->driver_data = NULL;
-				goto fail1;
-			}
-		}
-
-		goto out;
-	}
-
 	/* one bulk endpoint writes (sources) zeroes IN (to the host) */
 	ep = ss->in_ep;
 	result = config_ep_by_speed(cdev->gadget, &(ss->function), ep);
@@ -966,7 +684,7 @@ fail1:
 		return result;
 	ep->driver_data = ss;
 
-	result = source_sink_start_ep(ss, true, EP_BULK, speed);
+	result = source_sink_start_ep(ss, true, false, speed);
 	if (result < 0) {
 fail:
 		ep = ss->in_ep;
@@ -985,7 +703,7 @@ fail:
 		goto fail;
 	ep->driver_data = ss;
 
-	result = source_sink_start_ep(ss, false, EP_BULK, speed);
+	result = source_sink_start_ep(ss, false, false, speed);
 	if (result < 0) {
 fail2:
 		ep = ss->out_ep;
@@ -1008,7 +726,7 @@ fail2:
 			goto fail2;
 		ep->driver_data = ss;
 
-		result = source_sink_start_ep(ss, true, EP_ISOC, speed);
+		result = source_sink_start_ep(ss, true, true, speed);
 		if (result < 0) {
 fail3:
 			ep = ss->iso_in_ep;
@@ -1031,14 +749,13 @@ fail3:
 			goto fail3;
 		ep->driver_data = ss;
 
-		result = source_sink_start_ep(ss, false, EP_ISOC, speed);
+		result = source_sink_start_ep(ss, false, true, speed);
 		if (result < 0) {
 			usb_ep_disable(ep);
 			ep->driver_data = NULL;
 			goto fail3;
 		}
 	}
-
 out:
 	ss->cur_alt = alt;
 
@@ -1054,8 +771,6 @@ static int sourcesink_set_alt(struct usb_function *f,
 
 	if (ss->in_ep->driver_data)
 		disable_source_sink(ss);
-	else if (alt == 2 && ss->int_in_ep->driver_data)
-		disable_source_sink(ss);
 	return enable_source_sink(cdev, ss, alt);
 }
 
@@ -1168,10 +883,6 @@ static struct usb_function *source_sink_alloc_func(
 	isoc_maxpacket = ss_opts->isoc_maxpacket;
 	isoc_mult = ss_opts->isoc_mult;
 	isoc_maxburst = ss_opts->isoc_maxburst;
-	int_interval = ss_opts->int_interval;
-	int_maxpacket = ss_opts->int_maxpacket;
-	int_mult = ss_opts->int_mult;
-	int_maxburst = ss_opts->int_maxburst;
 	buflen = ss_opts->bulk_buflen;
 
 	ss->function.name = "source/sink";
@@ -1468,182 +1179,6 @@ static struct f_ss_opts_attribute f_ss_opts_bulk_buflen =
 			f_ss_opts_bulk_buflen_show,
 			f_ss_opts_bulk_buflen_store);
 
-static ssize_t f_ss_opts_int_interval_show(struct f_ss_opts *opts, char *page)
-{
-	int result;
-
-	mutex_lock(&opts->lock);
-	result = sprintf(page, "%u", opts->int_interval);
-	mutex_unlock(&opts->lock);
-
-	return result;
-}
-
-static ssize_t f_ss_opts_int_interval_store(struct f_ss_opts *opts,
-				       const char *page, size_t len)
-{
-	int ret;
-	u32 num;
-
-	mutex_lock(&opts->lock);
-	if (opts->refcnt) {
-		ret = -EBUSY;
-		goto end;
-	}
-
-	ret = kstrtou32(page, 0, &num);
-	if (ret)
-		goto end;
-
-	if (num > 4096) {
-		ret = -EINVAL;
-		goto end;
-	}
-
-	opts->int_interval = num;
-	ret = len;
-end:
-	mutex_unlock(&opts->lock);
-	return ret;
-}
-
-static struct f_ss_opts_attribute f_ss_opts_int_interval =
-	__CONFIGFS_ATTR(int_interval, S_IRUGO | S_IWUSR,
-			f_ss_opts_int_interval_show,
-			f_ss_opts_int_interval_store);
-
-static ssize_t f_ss_opts_int_maxpacket_show(struct f_ss_opts *opts, char *page)
-{
-	int result;
-
-	mutex_lock(&opts->lock);
-	result = sprintf(page, "%u", opts->int_maxpacket);
-	mutex_unlock(&opts->lock);
-
-	return result;
-}
-
-static ssize_t f_ss_opts_int_maxpacket_store(struct f_ss_opts *opts,
-				       const char *page, size_t len)
-{
-	int ret;
-	u16 num;
-
-	mutex_lock(&opts->lock);
-	if (opts->refcnt) {
-		ret = -EBUSY;
-		goto end;
-	}
-
-	ret = kstrtou16(page, 0, &num);
-	if (ret)
-		goto end;
-
-	if (num > 1024) {
-		ret = -EINVAL;
-		goto end;
-	}
-
-	opts->int_maxpacket = num;
-	ret = len;
-end:
-	mutex_unlock(&opts->lock);
-	return ret;
-}
-
-static struct f_ss_opts_attribute f_ss_opts_int_maxpacket =
-	__CONFIGFS_ATTR(int_maxpacket, S_IRUGO | S_IWUSR,
-			f_ss_opts_int_maxpacket_show,
-			f_ss_opts_int_maxpacket_store);
-
-static ssize_t f_ss_opts_int_mult_show(struct f_ss_opts *opts, char *page)
-{
-	int result;
-
-	mutex_lock(&opts->lock);
-	result = sprintf(page, "%u", opts->int_mult);
-	mutex_unlock(&opts->lock);
-
-	return result;
-}
-
-static ssize_t f_ss_opts_int_mult_store(struct f_ss_opts *opts,
-				       const char *page, size_t len)
-{
-	int ret;
-	u8 num;
-
-	mutex_lock(&opts->lock);
-	if (opts->refcnt) {
-		ret = -EBUSY;
-		goto end;
-	}
-
-	ret = kstrtou8(page, 0, &num);
-	if (ret)
-		goto end;
-
-	if (num > 2) {
-		ret = -EINVAL;
-		goto end;
-	}
-
-	opts->int_mult = num;
-	ret = len;
-end:
-	mutex_unlock(&opts->lock);
-	return ret;
-}
-
-static struct f_ss_opts_attribute f_ss_opts_int_mult =
-	__CONFIGFS_ATTR(int_mult, S_IRUGO | S_IWUSR,
-			f_ss_opts_int_mult_show,
-			f_ss_opts_int_mult_store);
-
-static ssize_t f_ss_opts_int_maxburst_show(struct f_ss_opts *opts, char *page)
-{
-	int result;
-
-	mutex_lock(&opts->lock);
-	result = sprintf(page, "%u", opts->int_maxburst);
-	mutex_unlock(&opts->lock);
-
-	return result;
-}
-
-static ssize_t f_ss_opts_int_maxburst_store(struct f_ss_opts *opts,
-				       const char *page, size_t len)
-{
-	int ret;
-	u8 num;
-
-	mutex_lock(&opts->lock);
-	if (opts->refcnt) {
-		ret = -EBUSY;
-		goto end;
-	}
-
-	ret = kstrtou8(page, 0, &num);
-	if (ret)
-		goto end;
-
-	if (num > 15) {
-		ret = -EINVAL;
-		goto end;
-	}
-
-	opts->int_maxburst = num;
-	ret = len;
-end:
-	mutex_unlock(&opts->lock);
-	return ret;
-}
-
-static struct f_ss_opts_attribute f_ss_opts_int_maxburst =
-	__CONFIGFS_ATTR(int_maxburst, S_IRUGO | S_IWUSR,
-			f_ss_opts_int_maxburst_show,
-			f_ss_opts_int_maxburst_store);
-
 static struct configfs_attribute *ss_attrs[] = {
 	&f_ss_opts_pattern.attr,
 	&f_ss_opts_isoc_interval.attr,
@@ -1651,10 +1186,6 @@ static struct configfs_attribute *ss_attrs[] = {
 	&f_ss_opts_isoc_mult.attr,
 	&f_ss_opts_isoc_maxburst.attr,
 	&f_ss_opts_bulk_buflen.attr,
-	&f_ss_opts_int_interval.attr,
-	&f_ss_opts_int_maxpacket.attr,
-	&f_ss_opts_int_mult.attr,
-	&f_ss_opts_int_maxburst.attr,
 	NULL,
 };
 
@@ -1684,8 +1215,6 @@ static struct usb_function_instance *source_sink_alloc_inst(void)
 	ss_opts->isoc_interval = GZERO_ISOC_INTERVAL;
 	ss_opts->isoc_maxpacket = GZERO_ISOC_MAXPACKET;
 	ss_opts->bulk_buflen = GZERO_BULK_BUFLEN;
-	ss_opts->int_interval = GZERO_INT_INTERVAL;
-	ss_opts->int_maxpacket = GZERO_INT_MAXPACKET;
 
 	config_group_init_type_name(&ss_opts->func_inst.group, "",
 				    &ss_func_type);
diff --git a/drivers/usb/gadget/function/f_uac2.c b/drivers/usb/gadget/function/f_uac2.c
index 33e1665..6d3eb8b 100644
--- a/drivers/usb/gadget/function/f_uac2.c
+++ b/drivers/usb/gadget/function/f_uac2.c
@@ -54,7 +54,7 @@
 #define UNFLW_CTRL	8
 #define OVFLW_CTRL	10
 
-const char *uac2_name = "snd_uac2";
+static const char *uac2_name = "snd_uac2";
 
 struct uac2_req {
 	struct uac2_rtd_params *pp; /* parent param */
@@ -634,7 +634,7 @@ static struct usb_interface_descriptor std_ac_if_desc = {
 };
 
 /* Clock source for IN traffic */
-struct uac_clock_source_descriptor in_clk_src_desc = {
+static struct uac_clock_source_descriptor in_clk_src_desc = {
 	.bLength = sizeof in_clk_src_desc,
 	.bDescriptorType = USB_DT_CS_INTERFACE,
 
@@ -646,7 +646,7 @@ struct uac_clock_source_descriptor in_clk_src_desc = {
 };
 
 /* Clock source for OUT traffic */
-struct uac_clock_source_descriptor out_clk_src_desc = {
+static struct uac_clock_source_descriptor out_clk_src_desc = {
 	.bLength = sizeof out_clk_src_desc,
 	.bDescriptorType = USB_DT_CS_INTERFACE,
 
@@ -658,7 +658,7 @@ struct uac_clock_source_descriptor out_clk_src_desc = {
 };
 
 /* Input Terminal for USB_OUT */
-struct uac2_input_terminal_descriptor usb_out_it_desc = {
+static struct uac2_input_terminal_descriptor usb_out_it_desc = {
 	.bLength = sizeof usb_out_it_desc,
 	.bDescriptorType = USB_DT_CS_INTERFACE,
 
@@ -672,7 +672,7 @@ struct uac2_input_terminal_descriptor usb_out_it_desc = {
 };
 
 /* Input Terminal for I/O-In */
-struct uac2_input_terminal_descriptor io_in_it_desc = {
+static struct uac2_input_terminal_descriptor io_in_it_desc = {
 	.bLength = sizeof io_in_it_desc,
 	.bDescriptorType = USB_DT_CS_INTERFACE,
 
@@ -686,7 +686,7 @@ struct uac2_input_terminal_descriptor io_in_it_desc = {
 };
 
 /* Ouput Terminal for USB_IN */
-struct uac2_output_terminal_descriptor usb_in_ot_desc = {
+static struct uac2_output_terminal_descriptor usb_in_ot_desc = {
 	.bLength = sizeof usb_in_ot_desc,
 	.bDescriptorType = USB_DT_CS_INTERFACE,
 
@@ -700,7 +700,7 @@ struct uac2_output_terminal_descriptor usb_in_ot_desc = {
 };
 
 /* Ouput Terminal for I/O-Out */
-struct uac2_output_terminal_descriptor io_out_ot_desc = {
+static struct uac2_output_terminal_descriptor io_out_ot_desc = {
 	.bLength = sizeof io_out_ot_desc,
 	.bDescriptorType = USB_DT_CS_INTERFACE,
 
@@ -713,7 +713,7 @@ struct uac2_output_terminal_descriptor io_out_ot_desc = {
 	.bmControls = (CONTROL_RDWR << COPY_CTRL),
 };
 
-struct uac2_ac_header_descriptor ac_hdr_desc = {
+static struct uac2_ac_header_descriptor ac_hdr_desc = {
 	.bLength = sizeof ac_hdr_desc,
 	.bDescriptorType = USB_DT_CS_INTERFACE,
 
@@ -751,7 +751,7 @@ static struct usb_interface_descriptor std_as_out_if1_desc = {
 };
 
 /* Audio Stream OUT Intface Desc */
-struct uac2_as_header_descriptor as_out_hdr_desc = {
+static struct uac2_as_header_descriptor as_out_hdr_desc = {
 	.bLength = sizeof as_out_hdr_desc,
 	.bDescriptorType = USB_DT_CS_INTERFACE,
 
@@ -764,7 +764,7 @@ struct uac2_as_header_descriptor as_out_hdr_desc = {
 };
 
 /* Audio USB_OUT Format */
-struct uac2_format_type_i_descriptor as_out_fmt1_desc = {
+static struct uac2_format_type_i_descriptor as_out_fmt1_desc = {
 	.bLength = sizeof as_out_fmt1_desc,
 	.bDescriptorType = USB_DT_CS_INTERFACE,
 	.bDescriptorSubtype = UAC_FORMAT_TYPE,
@@ -772,7 +772,7 @@ struct uac2_format_type_i_descriptor as_out_fmt1_desc = {
 };
 
 /* STD AS ISO OUT Endpoint */
-struct usb_endpoint_descriptor fs_epout_desc = {
+static struct usb_endpoint_descriptor fs_epout_desc = {
 	.bLength = USB_DT_ENDPOINT_SIZE,
 	.bDescriptorType = USB_DT_ENDPOINT,
 
@@ -782,7 +782,7 @@ struct usb_endpoint_descriptor fs_epout_desc = {
 	.bInterval = 1,
 };
 
-struct usb_endpoint_descriptor hs_epout_desc = {
+static struct usb_endpoint_descriptor hs_epout_desc = {
 	.bLength = USB_DT_ENDPOINT_SIZE,
 	.bDescriptorType = USB_DT_ENDPOINT,
 
@@ -828,7 +828,7 @@ static struct usb_interface_descriptor std_as_in_if1_desc = {
 };
 
 /* Audio Stream IN Intface Desc */
-struct uac2_as_header_descriptor as_in_hdr_desc = {
+static struct uac2_as_header_descriptor as_in_hdr_desc = {
 	.bLength = sizeof as_in_hdr_desc,
 	.bDescriptorType = USB_DT_CS_INTERFACE,
 
@@ -841,7 +841,7 @@ struct uac2_as_header_descriptor as_in_hdr_desc = {
 };
 
 /* Audio USB_IN Format */
-struct uac2_format_type_i_descriptor as_in_fmt1_desc = {
+static struct uac2_format_type_i_descriptor as_in_fmt1_desc = {
 	.bLength = sizeof as_in_fmt1_desc,
 	.bDescriptorType = USB_DT_CS_INTERFACE,
 	.bDescriptorSubtype = UAC_FORMAT_TYPE,
@@ -849,7 +849,7 @@ struct uac2_format_type_i_descriptor as_in_fmt1_desc = {
 };
 
 /* STD AS ISO IN Endpoint */
-struct usb_endpoint_descriptor fs_epin_desc = {
+static struct usb_endpoint_descriptor fs_epin_desc = {
 	.bLength = USB_DT_ENDPOINT_SIZE,
 	.bDescriptorType = USB_DT_ENDPOINT,
 
@@ -859,7 +859,7 @@ struct usb_endpoint_descriptor fs_epin_desc = {
 	.bInterval = 1,
 };
 
-struct usb_endpoint_descriptor hs_epin_desc = {
+static struct usb_endpoint_descriptor hs_epin_desc = {
 	.bLength = USB_DT_ENDPOINT_SIZE,
 	.bDescriptorType = USB_DT_ENDPOINT,
 
@@ -1563,7 +1563,7 @@ static void afunc_unbind(struct usb_configuration *c, struct usb_function *f)
 		agdev->out_ep->driver_data = NULL;
 }
 
-struct usb_function *afunc_alloc(struct usb_function_instance *fi)
+static struct usb_function *afunc_alloc(struct usb_function_instance *fi)
 {
 	struct audio_dev *agdev;
 	struct f_uac2_opts *opts;
diff --git a/drivers/usb/gadget/function/g_zero.h b/drivers/usb/gadget/function/g_zero.h
index 2ce28b9d..15f1809 100644
--- a/drivers/usb/gadget/function/g_zero.h
+++ b/drivers/usb/gadget/function/g_zero.h
@@ -10,8 +10,6 @@
 #define GZERO_QLEN		32
 #define GZERO_ISOC_INTERVAL	4
 #define GZERO_ISOC_MAXPACKET	1024
-#define GZERO_INT_INTERVAL	1 /* Default interrupt interval = 1 ms */
-#define GZERO_INT_MAXPACKET	1024
 
 struct usb_zero_options {
 	unsigned pattern;
@@ -19,10 +17,6 @@ struct usb_zero_options {
 	unsigned isoc_maxpacket;
 	unsigned isoc_mult;
 	unsigned isoc_maxburst;
-	unsigned int_interval; /* In ms */
-	unsigned int_maxpacket;
-	unsigned int_mult;
-	unsigned int_maxburst;
 	unsigned bulk_buflen;
 	unsigned qlen;
 };
@@ -34,10 +28,6 @@ struct f_ss_opts {
 	unsigned isoc_maxpacket;
 	unsigned isoc_mult;
 	unsigned isoc_maxburst;
-	unsigned int_interval; /* In ms */
-	unsigned int_maxpacket;
-	unsigned int_mult;
-	unsigned int_maxburst;
 	unsigned bulk_buflen;
 
 	/*
@@ -72,7 +62,6 @@ int lb_modinit(void);
 void free_ep_req(struct usb_ep *ep, struct usb_request *req);
 void disable_endpoints(struct usb_composite_dev *cdev,
 		struct usb_ep *in, struct usb_ep *out,
-		struct usb_ep *iso_in, struct usb_ep *iso_out,
-		struct usb_ep *int_in, struct usb_ep *int_out);
+		struct usb_ep *iso_in, struct usb_ep *iso_out);
 
 #endif /* __G_ZERO_H */
diff --git a/drivers/usb/gadget/function/u_printer.h b/drivers/usb/gadget/function/u_printer.h
new file mode 100644
index 0000000..0e2c49d
--- /dev/null
+++ b/drivers/usb/gadget/function/u_printer.h
@@ -0,0 +1,37 @@
+/*
+ * u_printer.h
+ *
+ * Utility definitions for the printer function
+ *
+ * Copyright (c) 2015 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com
+ *
+ * Author: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef U_PRINTER_H
+#define U_PRINTER_H
+
+#include <linux/usb/composite.h>
+
+#define PNP_STRING_LEN			1024
+
+struct f_printer_opts {
+	struct usb_function_instance	func_inst;
+	int				minor;
+	char				pnp_string[PNP_STRING_LEN];
+	unsigned			q_len;
+
+	/*
+	 * Protect the data from concurrent access by read/write
+	 * and create symlink/remove symlink
+	 */
+	struct mutex			lock;
+	int				refcnt;
+};
+
+#endif /* U_PRINTER_H */
diff --git a/drivers/usb/gadget/function/u_serial.c b/drivers/usb/gadget/function/u_serial.c
index 491082a..89179ab 100644
--- a/drivers/usb/gadget/function/u_serial.c
+++ b/drivers/usb/gadget/function/u_serial.c
@@ -912,7 +912,7 @@ static int gs_put_char(struct tty_struct *tty, unsigned char ch)
 	unsigned long	flags;
 	int		status;
 
-	pr_vdebug("gs_put_char: (%d,%p) char=0x%x, called from %pf\n",
+	pr_vdebug("gs_put_char: (%d,%p) char=0x%x, called from %ps\n",
 		port->port_num, tty, ch, __builtin_return_address(0));
 
 	spin_lock_irqsave(&port->port_lock, flags);
diff --git a/drivers/usb/gadget/function/uvc_v4l2.c b/drivers/usb/gadget/function/uvc_v4l2.c
index 5aad7fe..8b818fd 100644
--- a/drivers/usb/gadget/function/uvc_v4l2.c
+++ b/drivers/usb/gadget/function/uvc_v4l2.c
@@ -27,6 +27,7 @@
 #include "uvc.h"
 #include "uvc_queue.h"
 #include "uvc_video.h"
+#include "uvc_v4l2.h"
 
 /* --------------------------------------------------------------------------
  * Requests handling
diff --git a/drivers/usb/gadget/function/uvc_video.c b/drivers/usb/gadget/function/uvc_video.c
index 9cb86bc..50a5e63 100644
--- a/drivers/usb/gadget/function/uvc_video.c
+++ b/drivers/usb/gadget/function/uvc_video.c
@@ -21,6 +21,7 @@
 
 #include "uvc.h"
 #include "uvc_queue.h"
+#include "uvc_video.h"
 
 /* --------------------------------------------------------------------------
  * Video codecs
diff --git a/drivers/usb/gadget/legacy/Kconfig b/drivers/usb/gadget/legacy/Kconfig
index 113c87e..d5a7102 100644
--- a/drivers/usb/gadget/legacy/Kconfig
+++ b/drivers/usb/gadget/legacy/Kconfig
@@ -301,6 +301,7 @@ config USB_MIDI_GADGET
 config USB_G_PRINTER
 	tristate "Printer Gadget"
 	select USB_LIBCOMPOSITE
+	select USB_F_PRINTER
 	help
 	  The Printer Gadget channels data between the USB host and a
 	  userspace program driving the print engine. The user space
diff --git a/drivers/usb/gadget/legacy/g_ffs.c b/drivers/usb/gadget/legacy/g_ffs.c
index 06acfa5..b01b88e 100644
--- a/drivers/usb/gadget/legacy/g_ffs.c
+++ b/drivers/usb/gadget/legacy/g_ffs.c
@@ -133,7 +133,9 @@ struct gfs_configuration {
 	struct usb_configuration c;
 	int (*eth)(struct usb_configuration *c);
 	int num;
-} gfs_configurations[] = {
+};
+
+static struct gfs_configuration gfs_configurations[] = {
 #ifdef CONFIG_USB_FUNCTIONFS_RNDIS
 	{
 		.eth		= bind_rndis_config,
@@ -278,7 +280,7 @@ static void *functionfs_acquire_dev(struct ffs_dev *dev)
 	if (!try_module_get(THIS_MODULE))
 		return ERR_PTR(-ENOENT);
 	
-	return 0;
+	return NULL;
 }
 
 static void functionfs_release_dev(struct ffs_dev *dev)
diff --git a/drivers/usb/gadget/legacy/inode.c b/drivers/usb/gadget/legacy/inode.c
index db49ec4..200f9a5 100644
--- a/drivers/usb/gadget/legacy/inode.c
+++ b/drivers/usb/gadget/legacy/inode.c
@@ -74,6 +74,8 @@ MODULE_DESCRIPTION (DRIVER_DESC);
 MODULE_AUTHOR ("David Brownell");
 MODULE_LICENSE ("GPL");
 
+static int ep_open(struct inode *, struct file *);
+
 
 /*----------------------------------------------------------------------*/
 
@@ -283,14 +285,15 @@ static void epio_complete (struct usb_ep *ep, struct usb_request *req)
  * still need dev->lock to use epdata->ep.
  */
 static int
-get_ready_ep (unsigned f_flags, struct ep_data *epdata)
+get_ready_ep (unsigned f_flags, struct ep_data *epdata, bool is_write)
 {
 	int	val;
 
 	if (f_flags & O_NONBLOCK) {
 		if (!mutex_trylock(&epdata->lock))
 			goto nonblock;
-		if (epdata->state != STATE_EP_ENABLED) {
+		if (epdata->state != STATE_EP_ENABLED &&
+		    (!is_write || epdata->state != STATE_EP_READY)) {
 			mutex_unlock(&epdata->lock);
 nonblock:
 			val = -EAGAIN;
@@ -305,18 +308,20 @@ nonblock:
 
 	switch (epdata->state) {
 	case STATE_EP_ENABLED:
+		return 0;
+	case STATE_EP_READY:			/* not configured yet */
+		if (is_write)
+			return 0;
+		// FALLTHRU
+	case STATE_EP_UNBOUND:			/* clean disconnect */
 		break;
 	// case STATE_EP_DISABLED:		/* "can't happen" */
-	// case STATE_EP_READY:			/* "can't happen" */
 	default:				/* error! */
 		pr_debug ("%s: ep %p not available, state %d\n",
 				shortname, epdata, epdata->state);
-		// FALLTHROUGH
-	case STATE_EP_UNBOUND:			/* clean disconnect */
-		val = -ENODEV;
-		mutex_unlock(&epdata->lock);
 	}
-	return val;
+	mutex_unlock(&epdata->lock);
+	return -ENODEV;
 }
 
 static ssize_t
@@ -363,97 +368,6 @@ ep_io (struct ep_data *epdata, void *buf, unsigned len)
 	return value;
 }
 
-
-/* handle a synchronous OUT bulk/intr/iso transfer */
-static ssize_t
-ep_read (struct file *fd, char __user *buf, size_t len, loff_t *ptr)
-{
-	struct ep_data		*data = fd->private_data;
-	void			*kbuf;
-	ssize_t			value;
-
-	if ((value = get_ready_ep (fd->f_flags, data)) < 0)
-		return value;
-
-	/* halt any endpoint by doing a "wrong direction" i/o call */
-	if (usb_endpoint_dir_in(&data->desc)) {
-		if (usb_endpoint_xfer_isoc(&data->desc)) {
-			mutex_unlock(&data->lock);
-			return -EINVAL;
-		}
-		DBG (data->dev, "%s halt\n", data->name);
-		spin_lock_irq (&data->dev->lock);
-		if (likely (data->ep != NULL))
-			usb_ep_set_halt (data->ep);
-		spin_unlock_irq (&data->dev->lock);
-		mutex_unlock(&data->lock);
-		return -EBADMSG;
-	}
-
-	/* FIXME readahead for O_NONBLOCK and poll(); careful with ZLPs */
-
-	value = -ENOMEM;
-	kbuf = kmalloc (len, GFP_KERNEL);
-	if (unlikely (!kbuf))
-		goto free1;
-
-	value = ep_io (data, kbuf, len);
-	VDEBUG (data->dev, "%s read %zu OUT, status %d\n",
-		data->name, len, (int) value);
-	if (value >= 0 && copy_to_user (buf, kbuf, value))
-		value = -EFAULT;
-
-free1:
-	mutex_unlock(&data->lock);
-	kfree (kbuf);
-	return value;
-}
-
-/* handle a synchronous IN bulk/intr/iso transfer */
-static ssize_t
-ep_write (struct file *fd, const char __user *buf, size_t len, loff_t *ptr)
-{
-	struct ep_data		*data = fd->private_data;
-	void			*kbuf;
-	ssize_t			value;
-
-	if ((value = get_ready_ep (fd->f_flags, data)) < 0)
-		return value;
-
-	/* halt any endpoint by doing a "wrong direction" i/o call */
-	if (!usb_endpoint_dir_in(&data->desc)) {
-		if (usb_endpoint_xfer_isoc(&data->desc)) {
-			mutex_unlock(&data->lock);
-			return -EINVAL;
-		}
-		DBG (data->dev, "%s halt\n", data->name);
-		spin_lock_irq (&data->dev->lock);
-		if (likely (data->ep != NULL))
-			usb_ep_set_halt (data->ep);
-		spin_unlock_irq (&data->dev->lock);
-		mutex_unlock(&data->lock);
-		return -EBADMSG;
-	}
-
-	/* FIXME writebehind for O_NONBLOCK and poll(), qlen = 1 */
-
-	value = -ENOMEM;
-	kbuf = memdup_user(buf, len);
-	if (IS_ERR(kbuf)) {
-		value = PTR_ERR(kbuf);
-		kbuf = NULL;
-		goto free1;
-	}
-
-	value = ep_io (data, kbuf, len);
-	VDEBUG (data->dev, "%s write %zu IN, status %d\n",
-		data->name, len, (int) value);
-free1:
-	mutex_unlock(&data->lock);
-	kfree (kbuf);
-	return value;
-}
-
 static int
 ep_release (struct inode *inode, struct file *fd)
 {
@@ -481,7 +395,7 @@ static long ep_ioctl(struct file *fd, unsigned code, unsigned long value)
 	struct ep_data		*data = fd->private_data;
 	int			status;
 
-	if ((status = get_ready_ep (fd->f_flags, data)) < 0)
+	if ((status = get_ready_ep (fd->f_flags, data, false)) < 0)
 		return status;
 
 	spin_lock_irq (&data->dev->lock);
@@ -517,8 +431,8 @@ struct kiocb_priv {
 	struct mm_struct	*mm;
 	struct work_struct	work;
 	void			*buf;
-	const struct iovec	*iv;
-	unsigned long		nr_segs;
+	struct iov_iter		to;
+	const void		*to_free;
 	unsigned		actual;
 };
 
@@ -541,35 +455,6 @@ static int ep_aio_cancel(struct kiocb *iocb)
 	return value;
 }
 
-static ssize_t ep_copy_to_user(struct kiocb_priv *priv)
-{
-	ssize_t			len, total;
-	void			*to_copy;
-	int			i;
-
-	/* copy stuff into user buffers */
-	total = priv->actual;
-	len = 0;
-	to_copy = priv->buf;
-	for (i=0; i < priv->nr_segs; i++) {
-		ssize_t this = min((ssize_t)(priv->iv[i].iov_len), total);
-
-		if (copy_to_user(priv->iv[i].iov_base, to_copy, this)) {
-			if (len == 0)
-				len = -EFAULT;
-			break;
-		}
-
-		total -= this;
-		len += this;
-		to_copy += this;
-		if (total == 0)
-			break;
-	}
-
-	return len;
-}
-
 static void ep_user_copy_worker(struct work_struct *work)
 {
 	struct kiocb_priv *priv = container_of(work, struct kiocb_priv, work);
@@ -578,13 +463,16 @@ static void ep_user_copy_worker(struct work_struct *work)
 	size_t ret;
 
 	use_mm(mm);
-	ret = ep_copy_to_user(priv);
+	ret = copy_to_iter(priv->buf, priv->actual, &priv->to);
 	unuse_mm(mm);
+	if (!ret)
+		ret = -EFAULT;
 
 	/* completing the iocb can drop the ctx and mm, don't touch mm after */
 	aio_complete(iocb, ret, ret);
 
 	kfree(priv->buf);
+	kfree(priv->to_free);
 	kfree(priv);
 }
 
@@ -603,8 +491,9 @@ static void ep_aio_complete(struct usb_ep *ep, struct usb_request *req)
 	 * don't need to copy anything to userspace, so we can
 	 * complete the aio request immediately.
 	 */
-	if (priv->iv == NULL || unlikely(req->actual == 0)) {
+	if (priv->to_free == NULL || unlikely(req->actual == 0)) {
 		kfree(req->buf);
+		kfree(priv->to_free);
 		kfree(priv);
 		iocb->private = NULL;
 		/* aio_complete() reports bytes-transferred _and_ faults */
@@ -618,6 +507,7 @@ static void ep_aio_complete(struct usb_ep *ep, struct usb_request *req)
 
 		priv->buf = req->buf;
 		priv->actual = req->actual;
+		INIT_WORK(&priv->work, ep_user_copy_worker);
 		schedule_work(&priv->work);
 	}
 	spin_unlock(&epdata->dev->lock);
@@ -626,38 +516,17 @@ static void ep_aio_complete(struct usb_ep *ep, struct usb_request *req)
 	put_ep(epdata);
 }
 
-static ssize_t
-ep_aio_rwtail(
-	struct kiocb	*iocb,
-	char		*buf,
-	size_t		len,
-	struct ep_data	*epdata,
-	const struct iovec *iv,
-	unsigned long	nr_segs
-)
+static ssize_t ep_aio(struct kiocb *iocb,
+		      struct kiocb_priv *priv,
+		      struct ep_data *epdata,
+		      char *buf,
+		      size_t len)
 {
-	struct kiocb_priv	*priv;
-	struct usb_request	*req;
-	ssize_t			value;
+	struct usb_request *req;
+	ssize_t value;
 
-	priv = kmalloc(sizeof *priv, GFP_KERNEL);
-	if (!priv) {
-		value = -ENOMEM;
-fail:
-		kfree(buf);
-		return value;
-	}
 	iocb->private = priv;
 	priv->iocb = iocb;
-	priv->iv = iv;
-	priv->nr_segs = nr_segs;
-	INIT_WORK(&priv->work, ep_user_copy_worker);
-
-	value = get_ready_ep(iocb->ki_filp->f_flags, epdata);
-	if (unlikely(value < 0)) {
-		kfree(priv);
-		goto fail;
-	}
 
 	kiocb_set_cancel_fn(iocb, ep_aio_cancel);
 	get_ep(epdata);
@@ -669,75 +538,154 @@ fail:
 	 * allocate or submit those if the host disconnected.
 	 */
 	spin_lock_irq(&epdata->dev->lock);
-	if (likely(epdata->ep)) {
-		req = usb_ep_alloc_request(epdata->ep, GFP_ATOMIC);
-		if (likely(req)) {
-			priv->req = req;
-			req->buf = buf;
-			req->length = len;
-			req->complete = ep_aio_complete;
-			req->context = iocb;
-			value = usb_ep_queue(epdata->ep, req, GFP_ATOMIC);
-			if (unlikely(0 != value))
-				usb_ep_free_request(epdata->ep, req);
-		} else
-			value = -EAGAIN;
-	} else
-		value = -ENODEV;
-	spin_unlock_irq(&epdata->dev->lock);
+	value = -ENODEV;
+	if (unlikely(epdata->ep))
+		goto fail;
 
-	mutex_unlock(&epdata->lock);
+	req = usb_ep_alloc_request(epdata->ep, GFP_ATOMIC);
+	value = -ENOMEM;
+	if (unlikely(!req))
+		goto fail;
 
-	if (unlikely(value)) {
-		kfree(priv);
-		put_ep(epdata);
-	} else
-		value = -EIOCBQUEUED;
+	priv->req = req;
+	req->buf = buf;
+	req->length = len;
+	req->complete = ep_aio_complete;
+	req->context = iocb;
+	value = usb_ep_queue(epdata->ep, req, GFP_ATOMIC);
+	if (unlikely(0 != value)) {
+		usb_ep_free_request(epdata->ep, req);
+		goto fail;
+	}
+	spin_unlock_irq(&epdata->dev->lock);
+	return -EIOCBQUEUED;
+
+fail:
+	spin_unlock_irq(&epdata->dev->lock);
+	kfree(priv->to_free);
+	kfree(priv);
+	put_ep(epdata);
 	return value;
 }
 
 static ssize_t
-ep_aio_read(struct kiocb *iocb, const struct iovec *iov,
-		unsigned long nr_segs, loff_t o)
+ep_read_iter(struct kiocb *iocb, struct iov_iter *to)
 {
-	struct ep_data		*epdata = iocb->ki_filp->private_data;
-	char			*buf;
+	struct file *file = iocb->ki_filp;
+	struct ep_data *epdata = file->private_data;
+	size_t len = iov_iter_count(to);
+	ssize_t value;
+	char *buf;
 
-	if (unlikely(usb_endpoint_dir_in(&epdata->desc)))
-		return -EINVAL;
+	if ((value = get_ready_ep(file->f_flags, epdata, false)) < 0)
+		return value;
 
-	buf = kmalloc(iocb->ki_nbytes, GFP_KERNEL);
-	if (unlikely(!buf))
-		return -ENOMEM;
+	/* halt any endpoint by doing a "wrong direction" i/o call */
+	if (usb_endpoint_dir_in(&epdata->desc)) {
+		if (usb_endpoint_xfer_isoc(&epdata->desc) ||
+		    !is_sync_kiocb(iocb)) {
+			mutex_unlock(&epdata->lock);
+			return -EINVAL;
+		}
+		DBG (epdata->dev, "%s halt\n", epdata->name);
+		spin_lock_irq(&epdata->dev->lock);
+		if (likely(epdata->ep != NULL))
+			usb_ep_set_halt(epdata->ep);
+		spin_unlock_irq(&epdata->dev->lock);
+		mutex_unlock(&epdata->lock);
+		return -EBADMSG;
+	}
 
-	return ep_aio_rwtail(iocb, buf, iocb->ki_nbytes, epdata, iov, nr_segs);
+	buf = kmalloc(len, GFP_KERNEL);
+	if (unlikely(!buf)) {
+		mutex_unlock(&epdata->lock);
+		return -ENOMEM;
+	}
+	if (is_sync_kiocb(iocb)) {
+		value = ep_io(epdata, buf, len);
+		if (value >= 0 && copy_to_iter(buf, value, to))
+			value = -EFAULT;
+	} else {
+		struct kiocb_priv *priv = kzalloc(sizeof *priv, GFP_KERNEL);
+		value = -ENOMEM;
+		if (!priv)
+			goto fail;
+		priv->to_free = dup_iter(&priv->to, to, GFP_KERNEL);
+		if (!priv->to_free) {
+			kfree(priv);
+			goto fail;
+		}
+		value = ep_aio(iocb, priv, epdata, buf, len);
+		if (value == -EIOCBQUEUED)
+			buf = NULL;
+	}
+fail:
+	kfree(buf);
+	mutex_unlock(&epdata->lock);
+	return value;
 }
 
+static ssize_t ep_config(struct ep_data *, const char *, size_t);
+
 static ssize_t
-ep_aio_write(struct kiocb *iocb, const struct iovec *iov,
-		unsigned long nr_segs, loff_t o)
+ep_write_iter(struct kiocb *iocb, struct iov_iter *from)
 {
-	struct ep_data		*epdata = iocb->ki_filp->private_data;
-	char			*buf;
-	size_t			len = 0;
-	int			i = 0;
+	struct file *file = iocb->ki_filp;
+	struct ep_data *epdata = file->private_data;
+	size_t len = iov_iter_count(from);
+	bool configured;
+	ssize_t value;
+	char *buf;
+
+	if ((value = get_ready_ep(file->f_flags, epdata, true)) < 0)
+		return value;
 
-	if (unlikely(!usb_endpoint_dir_in(&epdata->desc)))
-		return -EINVAL;
+	configured = epdata->state == STATE_EP_ENABLED;
 
-	buf = kmalloc(iocb->ki_nbytes, GFP_KERNEL);
-	if (unlikely(!buf))
+	/* halt any endpoint by doing a "wrong direction" i/o call */
+	if (configured && !usb_endpoint_dir_in(&epdata->desc)) {
+		if (usb_endpoint_xfer_isoc(&epdata->desc) ||
+		    !is_sync_kiocb(iocb)) {
+			mutex_unlock(&epdata->lock);
+			return -EINVAL;
+		}
+		DBG (epdata->dev, "%s halt\n", epdata->name);
+		spin_lock_irq(&epdata->dev->lock);
+		if (likely(epdata->ep != NULL))
+			usb_ep_set_halt(epdata->ep);
+		spin_unlock_irq(&epdata->dev->lock);
+		mutex_unlock(&epdata->lock);
+		return -EBADMSG;
+	}
+
+	buf = kmalloc(len, GFP_KERNEL);
+	if (unlikely(!buf)) {
+		mutex_unlock(&epdata->lock);
 		return -ENOMEM;
+	}
 
-	for (i=0; i < nr_segs; i++) {
-		if (unlikely(copy_from_user(&buf[len], iov[i].iov_base,
-				iov[i].iov_len) != 0)) {
-			kfree(buf);
-			return -EFAULT;
+	if (unlikely(copy_from_iter(buf, len, from) != len)) {
+		value = -EFAULT;
+		goto out;
+	}
+
+	if (unlikely(!configured)) {
+		value = ep_config(epdata, buf, len);
+	} else if (is_sync_kiocb(iocb)) {
+		value = ep_io(epdata, buf, len);
+	} else {
+		struct kiocb_priv *priv = kzalloc(sizeof *priv, GFP_KERNEL);
+		value = -ENOMEM;
+		if (priv) {
+			value = ep_aio(iocb, priv, epdata, buf, len);
+			if (value == -EIOCBQUEUED)
+				buf = NULL;
 		}
-		len += iov[i].iov_len;
 	}
-	return ep_aio_rwtail(iocb, buf, len, epdata, NULL, 0);
+out:
+	kfree(buf);
+	mutex_unlock(&epdata->lock);
+	return value;
 }
 
 /*----------------------------------------------------------------------*/
@@ -745,15 +693,15 @@ ep_aio_write(struct kiocb *iocb, const struct iovec *iov,
 /* used after endpoint configuration */
 static const struct file_operations ep_io_operations = {
 	.owner =	THIS_MODULE,
-	.llseek =	no_llseek,
 
-	.read =		ep_read,
-	.write =	ep_write,
-	.unlocked_ioctl = ep_ioctl,
+	.open =		ep_open,
 	.release =	ep_release,
-
-	.aio_read =	ep_aio_read,
-	.aio_write =	ep_aio_write,
+	.llseek =	no_llseek,
+	.read =		new_sync_read,
+	.write =	new_sync_write,
+	.unlocked_ioctl = ep_ioctl,
+	.read_iter =	ep_read_iter,
+	.write_iter =	ep_write_iter,
 };
 
 /* ENDPOINT INITIALIZATION
@@ -770,17 +718,12 @@ static const struct file_operations ep_io_operations = {
  * speed descriptor, then optional high speed descriptor.
  */
 static ssize_t
-ep_config (struct file *fd, const char __user *buf, size_t len, loff_t *ptr)
+ep_config (struct ep_data *data, const char *buf, size_t len)
 {
-	struct ep_data		*data = fd->private_data;
 	struct usb_ep		*ep;
 	u32			tag;
 	int			value, length = len;
 
-	value = mutex_lock_interruptible(&data->lock);
-	if (value < 0)
-		return value;
-
 	if (data->state != STATE_EP_READY) {
 		value = -EL2HLT;
 		goto fail;
@@ -791,9 +734,7 @@ ep_config (struct file *fd, const char __user *buf, size_t len, loff_t *ptr)
 		goto fail0;
 
 	/* we might need to change message format someday */
-	if (copy_from_user (&tag, buf, 4)) {
-		goto fail1;
-	}
+	memcpy(&tag, buf, 4);
 	if (tag != 1) {
 		DBG(data->dev, "config %s, bad tag %d\n", data->name, tag);
 		goto fail0;
@@ -806,19 +747,15 @@ ep_config (struct file *fd, const char __user *buf, size_t len, loff_t *ptr)
 	 */
 
 	/* full/low speed descriptor, then high speed */
-	if (copy_from_user (&data->desc, buf, USB_DT_ENDPOINT_SIZE)) {
-		goto fail1;
-	}
+	memcpy(&data->desc, buf, USB_DT_ENDPOINT_SIZE);
 	if (data->desc.bLength != USB_DT_ENDPOINT_SIZE
 			|| data->desc.bDescriptorType != USB_DT_ENDPOINT)
 		goto fail0;
 	if (len != USB_DT_ENDPOINT_SIZE) {
 		if (len != 2 * USB_DT_ENDPOINT_SIZE)
 			goto fail0;
-		if (copy_from_user (&data->hs_desc, buf + USB_DT_ENDPOINT_SIZE,
-					USB_DT_ENDPOINT_SIZE)) {
-			goto fail1;
-		}
+		memcpy(&data->hs_desc, buf + USB_DT_ENDPOINT_SIZE,
+			USB_DT_ENDPOINT_SIZE);
 		if (data->hs_desc.bLength != USB_DT_ENDPOINT_SIZE
 				|| data->hs_desc.bDescriptorType
 					!= USB_DT_ENDPOINT) {
@@ -840,24 +777,20 @@ ep_config (struct file *fd, const char __user *buf, size_t len, loff_t *ptr)
 	case USB_SPEED_LOW:
 	case USB_SPEED_FULL:
 		ep->desc = &data->desc;
-		value = usb_ep_enable(ep);
-		if (value == 0)
-			data->state = STATE_EP_ENABLED;
 		break;
 	case USB_SPEED_HIGH:
 		/* fails if caller didn't provide that descriptor... */
 		ep->desc = &data->hs_desc;
-		value = usb_ep_enable(ep);
-		if (value == 0)
-			data->state = STATE_EP_ENABLED;
 		break;
 	default:
 		DBG(data->dev, "unconnected, %s init abandoned\n",
 				data->name);
 		value = -EINVAL;
+		goto gone;
 	}
+	value = usb_ep_enable(ep);
 	if (value == 0) {
-		fd->f_op = &ep_io_operations;
+		data->state = STATE_EP_ENABLED;
 		value = length;
 	}
 gone:
@@ -867,14 +800,10 @@ fail:
 		data->desc.bDescriptorType = 0;
 		data->hs_desc.bDescriptorType = 0;
 	}
-	mutex_unlock(&data->lock);
 	return value;
 fail0:
 	value = -EINVAL;
 	goto fail;
-fail1:
-	value = -EFAULT;
-	goto fail;
 }
 
 static int
@@ -902,15 +831,6 @@ ep_open (struct inode *inode, struct file *fd)
 	return value;
 }
 
-/* used before endpoint configuration */
-static const struct file_operations ep_config_operations = {
-	.llseek =	no_llseek,
-
-	.open =		ep_open,
-	.write =	ep_config,
-	.release =	ep_release,
-};
-
 /*----------------------------------------------------------------------*/
 
 /* EP0 IMPLEMENTATION can be partly in userspace.
@@ -989,6 +909,10 @@ ep0_read (struct file *fd, char __user *buf, size_t len, loff_t *ptr)
 	enum ep0_state			state;
 
 	spin_lock_irq (&dev->lock);
+	if (dev->state <= STATE_DEV_OPENED) {
+		retval = -EINVAL;
+		goto done;
+	}
 
 	/* report fd mode change before acting on it */
 	if (dev->setup_abort) {
@@ -1187,8 +1111,6 @@ ep0_write (struct file *fd, const char __user *buf, size_t len, loff_t *ptr)
 	struct dev_data		*dev = fd->private_data;
 	ssize_t			retval = -ESRCH;
 
-	spin_lock_irq (&dev->lock);
-
 	/* report fd mode change before acting on it */
 	if (dev->setup_abort) {
 		dev->setup_abort = 0;
@@ -1234,7 +1156,6 @@ ep0_write (struct file *fd, const char __user *buf, size_t len, loff_t *ptr)
 	} else
 		DBG (dev, "fail %s, state %d\n", __func__, dev->state);
 
-	spin_unlock_irq (&dev->lock);
 	return retval;
 }
 
@@ -1281,6 +1202,9 @@ ep0_poll (struct file *fd, poll_table *wait)
        struct dev_data         *dev = fd->private_data;
        int                     mask = 0;
 
+	if (dev->state <= STATE_DEV_OPENED)
+		return DEFAULT_POLLMASK;
+
        poll_wait(fd, &dev->wait, wait);
 
        spin_lock_irq (&dev->lock);
@@ -1316,19 +1240,6 @@ static long dev_ioctl (struct file *fd, unsigned code, unsigned long value)
 	return ret;
 }
 
-/* used after device configuration */
-static const struct file_operations ep0_io_operations = {
-	.owner =	THIS_MODULE,
-	.llseek =	no_llseek,
-
-	.read =		ep0_read,
-	.write =	ep0_write,
-	.fasync =	ep0_fasync,
-	.poll =		ep0_poll,
-	.unlocked_ioctl =	dev_ioctl,
-	.release =	dev_release,
-};
-
 /*----------------------------------------------------------------------*/
 
 /* The in-kernel gadget driver handles most ep0 issues, in particular
@@ -1650,7 +1561,7 @@ static int activate_ep_files (struct dev_data *dev)
 			goto enomem1;
 
 		data->dentry = gadgetfs_create_file (dev->sb, data->name,
-				data, &ep_config_operations);
+				data, &ep_io_operations);
 		if (!data->dentry)
 			goto enomem2;
 		list_add_tail (&data->epfiles, &dev->epfiles);
@@ -1852,6 +1763,14 @@ dev_config (struct file *fd, const char __user *buf, size_t len, loff_t *ptr)
 	u32			tag;
 	char			*kbuf;
 
+	spin_lock_irq(&dev->lock);
+	if (dev->state > STATE_DEV_OPENED) {
+		value = ep0_write(fd, buf, len, ptr);
+		spin_unlock_irq(&dev->lock);
+		return value;
+	}
+	spin_unlock_irq(&dev->lock);
+
 	if (len < (USB_DT_CONFIG_SIZE + USB_DT_DEVICE_SIZE + 4))
 		return -EINVAL;
 
@@ -1925,7 +1844,6 @@ dev_config (struct file *fd, const char __user *buf, size_t len, loff_t *ptr)
 		 * on, they can work ... except in cleanup paths that
 		 * kick in after the ep0 descriptor is closed.
 		 */
-		fd->f_op = &ep0_io_operations;
 		value = len;
 	}
 	return value;
@@ -1956,12 +1874,14 @@ dev_open (struct inode *inode, struct file *fd)
 	return value;
 }
 
-static const struct file_operations dev_init_operations = {
+static const struct file_operations ep0_operations = {
 	.llseek =	no_llseek,
 
 	.open =		dev_open,
+	.read =		ep0_read,
 	.write =	dev_config,
 	.fasync =	ep0_fasync,
+	.poll =		ep0_poll,
 	.unlocked_ioctl = dev_ioctl,
 	.release =	dev_release,
 };
@@ -2077,7 +1997,7 @@ gadgetfs_fill_super (struct super_block *sb, void *opts, int silent)
 		goto Enomem;
 
 	dev->sb = sb;
-	dev->dentry = gadgetfs_create_file(sb, CHIP, dev, &dev_init_operations);
+	dev->dentry = gadgetfs_create_file(sb, CHIP, dev, &ep0_operations);
 	if (!dev->dentry) {
 		put_dev(dev);
 		goto Enomem;
diff --git a/drivers/usb/gadget/legacy/printer.c b/drivers/usb/gadget/legacy/printer.c
index 90545980..d5b6ee7 100644
--- a/drivers/usb/gadget/legacy/printer.c
+++ b/drivers/usb/gadget/legacy/printer.c
@@ -12,29 +12,7 @@
 
 #include <linux/module.h>
 #include <linux/kernel.h>
-#include <linux/delay.h>
-#include <linux/ioport.h>
-#include <linux/sched.h>
-#include <linux/slab.h>
-#include <linux/mutex.h>
-#include <linux/errno.h>
-#include <linux/init.h>
-#include <linux/timer.h>
-#include <linux/list.h>
-#include <linux/interrupt.h>
-#include <linux/device.h>
-#include <linux/moduleparam.h>
-#include <linux/fs.h>
-#include <linux/poll.h>
-#include <linux/types.h>
-#include <linux/ctype.h>
-#include <linux/cdev.h>
-
 #include <asm/byteorder.h>
-#include <linux/io.h>
-#include <linux/irq.h>
-#include <linux/uaccess.h>
-#include <asm/unaligned.h>
 
 #include <linux/usb/ch9.h>
 #include <linux/usb/composite.h>
@@ -46,50 +24,12 @@
 USB_GADGET_COMPOSITE_OPTIONS();
 
 #define DRIVER_DESC		"Printer Gadget"
-#define DRIVER_VERSION		"2007 OCT 06"
+#define DRIVER_VERSION		"2015 FEB 17"
 
-static DEFINE_MUTEX(printer_mutex);
 static const char shortname [] = "printer";
 static const char driver_desc [] = DRIVER_DESC;
 
-static dev_t g_printer_devno;
-
-static struct class *usb_gadget_class;
-
-/*-------------------------------------------------------------------------*/
-
-struct printer_dev {
-	spinlock_t		lock;		/* lock this structure */
-	/* lock buffer lists during read/write calls */
-	struct mutex		lock_printer_io;
-	struct usb_gadget	*gadget;
-	s8			interface;
-	struct usb_ep		*in_ep, *out_ep;
-
-	struct list_head	rx_reqs;	/* List of free RX structs */
-	struct list_head	rx_reqs_active;	/* List of Active RX xfers */
-	struct list_head	rx_buffers;	/* List of completed xfers */
-	/* wait until there is data to be read. */
-	wait_queue_head_t	rx_wait;
-	struct list_head	tx_reqs;	/* List of free TX structs */
-	struct list_head	tx_reqs_active; /* List of Active TX xfers */
-	/* Wait until there are write buffers available to use. */
-	wait_queue_head_t	tx_wait;
-	/* Wait until all write buffers have been sent. */
-	wait_queue_head_t	tx_flush_wait;
-	struct usb_request	*current_rx_req;
-	size_t			current_rx_bytes;
-	u8			*current_rx_buf;
-	u8			printer_status;
-	u8			reset_printer;
-	struct cdev		printer_cdev;
-	struct device		*pdev;
-	u8			printer_cdev_open;
-	wait_queue_head_t	wait;
-	struct usb_function	function;
-};
-
-static struct printer_dev usb_printer_gadget;
+#include "u_printer.h"
 
 /*-------------------------------------------------------------------------*/
 
@@ -120,6 +60,9 @@ module_param(qlen, uint, S_IRUGO|S_IWUSR);
 
 #define QLEN	qlen
 
+static struct usb_function_instance *fi_printer;
+static struct usb_function *f_printer;
+
 /*-------------------------------------------------------------------------*/
 
 /*
@@ -127,10 +70,6 @@ module_param(qlen, uint, S_IRUGO|S_IWUSR);
  * descriptors are built on demand.
  */
 
-/* holds our biggest descriptor */
-#define USB_DESC_BUFSIZE		256
-#define USB_BUFSIZE			8192
-
 static struct usb_device_descriptor device_desc = {
 	.bLength =		sizeof device_desc,
 	.bDescriptorType =	USB_DT_DEVICE,
@@ -143,108 +82,6 @@ static struct usb_device_descriptor device_desc = {
 	.bNumConfigurations =	1
 };
 
-static struct usb_interface_descriptor intf_desc = {
-	.bLength =		sizeof intf_desc,
-	.bDescriptorType =	USB_DT_INTERFACE,
-	.bNumEndpoints =	2,
-	.bInterfaceClass =	USB_CLASS_PRINTER,
-	.bInterfaceSubClass =	1,	/* Printer Sub-Class */
-	.bInterfaceProtocol =	2,	/* Bi-Directional */
-	.iInterface =		0
-};
-
-static struct usb_endpoint_descriptor fs_ep_in_desc = {
-	.bLength =		USB_DT_ENDPOINT_SIZE,
-	.bDescriptorType =	USB_DT_ENDPOINT,
-	.bEndpointAddress =	USB_DIR_IN,
-	.bmAttributes =		USB_ENDPOINT_XFER_BULK
-};
-
-static struct usb_endpoint_descriptor fs_ep_out_desc = {
-	.bLength =		USB_DT_ENDPOINT_SIZE,
-	.bDescriptorType =	USB_DT_ENDPOINT,
-	.bEndpointAddress =	USB_DIR_OUT,
-	.bmAttributes =		USB_ENDPOINT_XFER_BULK
-};
-
-static struct usb_descriptor_header *fs_printer_function[] = {
-	(struct usb_descriptor_header *) &intf_desc,
-	(struct usb_descriptor_header *) &fs_ep_in_desc,
-	(struct usb_descriptor_header *) &fs_ep_out_desc,
-	NULL
-};
-
-/*
- * usb 2.0 devices need to expose both high speed and full speed
- * descriptors, unless they only run at full speed.
- */
-
-static struct usb_endpoint_descriptor hs_ep_in_desc = {
-	.bLength =		USB_DT_ENDPOINT_SIZE,
-	.bDescriptorType =	USB_DT_ENDPOINT,
-	.bmAttributes =		USB_ENDPOINT_XFER_BULK,
-	.wMaxPacketSize =	cpu_to_le16(512)
-};
-
-static struct usb_endpoint_descriptor hs_ep_out_desc = {
-	.bLength =		USB_DT_ENDPOINT_SIZE,
-	.bDescriptorType =	USB_DT_ENDPOINT,
-	.bmAttributes =		USB_ENDPOINT_XFER_BULK,
-	.wMaxPacketSize =	cpu_to_le16(512)
-};
-
-static struct usb_qualifier_descriptor dev_qualifier = {
-	.bLength =		sizeof dev_qualifier,
-	.bDescriptorType =	USB_DT_DEVICE_QUALIFIER,
-	.bcdUSB =		cpu_to_le16(0x0200),
-	.bDeviceClass =		USB_CLASS_PRINTER,
-	.bNumConfigurations =	1
-};
-
-static struct usb_descriptor_header *hs_printer_function[] = {
-	(struct usb_descriptor_header *) &intf_desc,
-	(struct usb_descriptor_header *) &hs_ep_in_desc,
-	(struct usb_descriptor_header *) &hs_ep_out_desc,
-	NULL
-};
-
-/*
- * Added endpoint descriptors for 3.0 devices
- */
-
-static struct usb_endpoint_descriptor ss_ep_in_desc = {
-	.bLength =              USB_DT_ENDPOINT_SIZE,
-	.bDescriptorType =      USB_DT_ENDPOINT,
-	.bmAttributes =         USB_ENDPOINT_XFER_BULK,
-	.wMaxPacketSize =       cpu_to_le16(1024),
-};
-
-static struct usb_ss_ep_comp_descriptor ss_ep_in_comp_desc = {
-	.bLength =              sizeof(ss_ep_in_comp_desc),
-	.bDescriptorType =      USB_DT_SS_ENDPOINT_COMP,
-};
-
-static struct usb_endpoint_descriptor ss_ep_out_desc = {
-	.bLength =              USB_DT_ENDPOINT_SIZE,
-	.bDescriptorType =      USB_DT_ENDPOINT,
-	.bmAttributes =         USB_ENDPOINT_XFER_BULK,
-	.wMaxPacketSize =       cpu_to_le16(1024),
-};
-
-static struct usb_ss_ep_comp_descriptor ss_ep_out_comp_desc = {
-	.bLength =              sizeof(ss_ep_out_comp_desc),
-	.bDescriptorType =      USB_DT_SS_ENDPOINT_COMP,
-};
-
-static struct usb_descriptor_header *ss_printer_function[] = {
-	(struct usb_descriptor_header *) &intf_desc,
-	(struct usb_descriptor_header *) &ss_ep_in_desc,
-	(struct usb_descriptor_header *) &ss_ep_in_comp_desc,
-	(struct usb_descriptor_header *) &ss_ep_out_desc,
-	(struct usb_descriptor_header *) &ss_ep_out_comp_desc,
-	NULL
-};
-
 static struct usb_otg_descriptor otg_descriptor = {
 	.bLength =              sizeof otg_descriptor,
 	.bDescriptorType =      USB_DT_OTG,
@@ -256,29 +93,13 @@ static const struct usb_descriptor_header *otg_desc[] = {
 	NULL,
 };
 
-/* maxpacket and other transfer characteristics vary by speed. */
-static inline struct usb_endpoint_descriptor *ep_desc(struct usb_gadget *gadget,
-					struct usb_endpoint_descriptor *fs,
-					struct usb_endpoint_descriptor *hs,
-					struct usb_endpoint_descriptor *ss)
-{
-	switch (gadget->speed) {
-	case USB_SPEED_SUPER:
-		return ss;
-	case USB_SPEED_HIGH:
-		return hs;
-	default:
-		return fs;
-	}
-}
-
 /*-------------------------------------------------------------------------*/
 
 /* descriptors that are built on-demand */
 
 static char				product_desc [40] = DRIVER_DESC;
 static char				serial_num [40] = "1";
-static char				pnp_string [1024] =
+static char				pnp_string[PNP_STRING_LEN] =
 	"XXMFG:linux;MDL:g_printer;CLS:PRINTER;SN:1;";
 
 /* static strings, in UTF-8 */
@@ -299,921 +120,19 @@ static struct usb_gadget_strings *dev_strings[] = {
 	NULL,
 };
 
-/*-------------------------------------------------------------------------*/
-
-static struct usb_request *
-printer_req_alloc(struct usb_ep *ep, unsigned len, gfp_t gfp_flags)
-{
-	struct usb_request	*req;
-
-	req = usb_ep_alloc_request(ep, gfp_flags);
-
-	if (req != NULL) {
-		req->length = len;
-		req->buf = kmalloc(len, gfp_flags);
-		if (req->buf == NULL) {
-			usb_ep_free_request(ep, req);
-			return NULL;
-		}
-	}
-
-	return req;
-}
-
-static void
-printer_req_free(struct usb_ep *ep, struct usb_request *req)
-{
-	if (ep != NULL && req != NULL) {
-		kfree(req->buf);
-		usb_ep_free_request(ep, req);
-	}
-}
-
-/*-------------------------------------------------------------------------*/
-
-static void rx_complete(struct usb_ep *ep, struct usb_request *req)
-{
-	struct printer_dev	*dev = ep->driver_data;
-	int			status = req->status;
-	unsigned long		flags;
-
-	spin_lock_irqsave(&dev->lock, flags);
-
-	list_del_init(&req->list);	/* Remode from Active List */
-
-	switch (status) {
-
-	/* normal completion */
-	case 0:
-		if (req->actual > 0) {
-			list_add_tail(&req->list, &dev->rx_buffers);
-			DBG(dev, "G_Printer : rx length %d\n", req->actual);
-		} else {
-			list_add(&req->list, &dev->rx_reqs);
-		}
-		break;
-
-	/* software-driven interface shutdown */
-	case -ECONNRESET:		/* unlink */
-	case -ESHUTDOWN:		/* disconnect etc */
-		VDBG(dev, "rx shutdown, code %d\n", status);
-		list_add(&req->list, &dev->rx_reqs);
-		break;
-
-	/* for hardware automagic (such as pxa) */
-	case -ECONNABORTED:		/* endpoint reset */
-		DBG(dev, "rx %s reset\n", ep->name);
-		list_add(&req->list, &dev->rx_reqs);
-		break;
-
-	/* data overrun */
-	case -EOVERFLOW:
-		/* FALLTHROUGH */
-
-	default:
-		DBG(dev, "rx status %d\n", status);
-		list_add(&req->list, &dev->rx_reqs);
-		break;
-	}
-
-	wake_up_interruptible(&dev->rx_wait);
-	spin_unlock_irqrestore(&dev->lock, flags);
-}
-
-static void tx_complete(struct usb_ep *ep, struct usb_request *req)
-{
-	struct printer_dev	*dev = ep->driver_data;
-
-	switch (req->status) {
-	default:
-		VDBG(dev, "tx err %d\n", req->status);
-		/* FALLTHROUGH */
-	case -ECONNRESET:		/* unlink */
-	case -ESHUTDOWN:		/* disconnect etc */
-		break;
-	case 0:
-		break;
-	}
-
-	spin_lock(&dev->lock);
-	/* Take the request struct off the active list and put it on the
-	 * free list.
-	 */
-	list_del_init(&req->list);
-	list_add(&req->list, &dev->tx_reqs);
-	wake_up_interruptible(&dev->tx_wait);
-	if (likely(list_empty(&dev->tx_reqs_active)))
-		wake_up_interruptible(&dev->tx_flush_wait);
-
-	spin_unlock(&dev->lock);
-}
-
-/*-------------------------------------------------------------------------*/
-
-static int
-printer_open(struct inode *inode, struct file *fd)
-{
-	struct printer_dev	*dev;
-	unsigned long		flags;
-	int			ret = -EBUSY;
-
-	mutex_lock(&printer_mutex);
-	dev = container_of(inode->i_cdev, struct printer_dev, printer_cdev);
-
-	spin_lock_irqsave(&dev->lock, flags);
-
-	if (!dev->printer_cdev_open) {
-		dev->printer_cdev_open = 1;
-		fd->private_data = dev;
-		ret = 0;
-		/* Change the printer status to show that it's on-line. */
-		dev->printer_status |= PRINTER_SELECTED;
-	}
-
-	spin_unlock_irqrestore(&dev->lock, flags);
-
-	DBG(dev, "printer_open returned %x\n", ret);
-	mutex_unlock(&printer_mutex);
-	return ret;
-}
-
-static int
-printer_close(struct inode *inode, struct file *fd)
-{
-	struct printer_dev	*dev = fd->private_data;
-	unsigned long		flags;
-
-	spin_lock_irqsave(&dev->lock, flags);
-	dev->printer_cdev_open = 0;
-	fd->private_data = NULL;
-	/* Change printer status to show that the printer is off-line. */
-	dev->printer_status &= ~PRINTER_SELECTED;
-	spin_unlock_irqrestore(&dev->lock, flags);
-
-	DBG(dev, "printer_close\n");
-
-	return 0;
-}
-
-/* This function must be called with interrupts turned off. */
-static void
-setup_rx_reqs(struct printer_dev *dev)
-{
-	struct usb_request              *req;
-
-	while (likely(!list_empty(&dev->rx_reqs))) {
-		int error;
-
-		req = container_of(dev->rx_reqs.next,
-				struct usb_request, list);
-		list_del_init(&req->list);
-
-		/* The USB Host sends us whatever amount of data it wants to
-		 * so we always set the length field to the full USB_BUFSIZE.
-		 * If the amount of data is more than the read() caller asked
-		 * for it will be stored in the request buffer until it is
-		 * asked for by read().
-		 */
-		req->length = USB_BUFSIZE;
-		req->complete = rx_complete;
-
-		/* here, we unlock, and only unlock, to avoid deadlock. */
-		spin_unlock(&dev->lock);
-		error = usb_ep_queue(dev->out_ep, req, GFP_ATOMIC);
-		spin_lock(&dev->lock);
-		if (error) {
-			DBG(dev, "rx submit --> %d\n", error);
-			list_add(&req->list, &dev->rx_reqs);
-			break;
-		}
-		/* if the req is empty, then add it into dev->rx_reqs_active. */
-		else if (list_empty(&req->list)) {
-			list_add(&req->list, &dev->rx_reqs_active);
-		}
-	}
-}
-
-static ssize_t
-printer_read(struct file *fd, char __user *buf, size_t len, loff_t *ptr)
-{
-	struct printer_dev		*dev = fd->private_data;
-	unsigned long			flags;
-	size_t				size;
-	size_t				bytes_copied;
-	struct usb_request		*req;
-	/* This is a pointer to the current USB rx request. */
-	struct usb_request		*current_rx_req;
-	/* This is the number of bytes in the current rx buffer. */
-	size_t				current_rx_bytes;
-	/* This is a pointer to the current rx buffer. */
-	u8				*current_rx_buf;
-
-	if (len == 0)
-		return -EINVAL;
-
-	DBG(dev, "printer_read trying to read %d bytes\n", (int)len);
-
-	mutex_lock(&dev->lock_printer_io);
-	spin_lock_irqsave(&dev->lock, flags);
-
-	/* We will use this flag later to check if a printer reset happened
-	 * after we turn interrupts back on.
-	 */
-	dev->reset_printer = 0;
-
-	setup_rx_reqs(dev);
-
-	bytes_copied = 0;
-	current_rx_req = dev->current_rx_req;
-	current_rx_bytes = dev->current_rx_bytes;
-	current_rx_buf = dev->current_rx_buf;
-	dev->current_rx_req = NULL;
-	dev->current_rx_bytes = 0;
-	dev->current_rx_buf = NULL;
-
-	/* Check if there is any data in the read buffers. Please note that
-	 * current_rx_bytes is the number of bytes in the current rx buffer.
-	 * If it is zero then check if there are any other rx_buffers that
-	 * are on the completed list. We are only out of data if all rx
-	 * buffers are empty.
-	 */
-	if ((current_rx_bytes == 0) &&
-			(likely(list_empty(&dev->rx_buffers)))) {
-		/* Turn interrupts back on before sleeping. */
-		spin_unlock_irqrestore(&dev->lock, flags);
-
-		/*
-		 * If no data is available check if this is a NON-Blocking
-		 * call or not.
-		 */
-		if (fd->f_flags & (O_NONBLOCK|O_NDELAY)) {
-			mutex_unlock(&dev->lock_printer_io);
-			return -EAGAIN;
-		}
-
-		/* Sleep until data is available */
-		wait_event_interruptible(dev->rx_wait,
-				(likely(!list_empty(&dev->rx_buffers))));
-		spin_lock_irqsave(&dev->lock, flags);
-	}
-
-	/* We have data to return then copy it to the caller's buffer.*/
-	while ((current_rx_bytes || likely(!list_empty(&dev->rx_buffers)))
-			&& len) {
-		if (current_rx_bytes == 0) {
-			req = container_of(dev->rx_buffers.next,
-					struct usb_request, list);
-			list_del_init(&req->list);
-
-			if (req->actual && req->buf) {
-				current_rx_req = req;
-				current_rx_bytes = req->actual;
-				current_rx_buf = req->buf;
-			} else {
-				list_add(&req->list, &dev->rx_reqs);
-				continue;
-			}
-		}
-
-		/* Don't leave irqs off while doing memory copies */
-		spin_unlock_irqrestore(&dev->lock, flags);
-
-		if (len > current_rx_bytes)
-			size = current_rx_bytes;
-		else
-			size = len;
-
-		size -= copy_to_user(buf, current_rx_buf, size);
-		bytes_copied += size;
-		len -= size;
-		buf += size;
-
-		spin_lock_irqsave(&dev->lock, flags);
-
-		/* We've disconnected or reset so return. */
-		if (dev->reset_printer) {
-			list_add(&current_rx_req->list, &dev->rx_reqs);
-			spin_unlock_irqrestore(&dev->lock, flags);
-			mutex_unlock(&dev->lock_printer_io);
-			return -EAGAIN;
-		}
-
-		/* If we not returning all the data left in this RX request
-		 * buffer then adjust the amount of data left in the buffer.
-		 * Othewise if we are done with this RX request buffer then
-		 * requeue it to get any incoming data from the USB host.
-		 */
-		if (size < current_rx_bytes) {
-			current_rx_bytes -= size;
-			current_rx_buf += size;
-		} else {
-			list_add(&current_rx_req->list, &dev->rx_reqs);
-			current_rx_bytes = 0;
-			current_rx_buf = NULL;
-			current_rx_req = NULL;
-		}
-	}
-
-	dev->current_rx_req = current_rx_req;
-	dev->current_rx_bytes = current_rx_bytes;
-	dev->current_rx_buf = current_rx_buf;
-
-	spin_unlock_irqrestore(&dev->lock, flags);
-	mutex_unlock(&dev->lock_printer_io);
-
-	DBG(dev, "printer_read returned %d bytes\n", (int)bytes_copied);
-
-	if (bytes_copied)
-		return bytes_copied;
-	else
-		return -EAGAIN;
-}
-
-static ssize_t
-printer_write(struct file *fd, const char __user *buf, size_t len, loff_t *ptr)
-{
-	struct printer_dev	*dev = fd->private_data;
-	unsigned long		flags;
-	size_t			size;	/* Amount of data in a TX request. */
-	size_t			bytes_copied = 0;
-	struct usb_request	*req;
-
-	DBG(dev, "printer_write trying to send %d bytes\n", (int)len);
-
-	if (len == 0)
-		return -EINVAL;
-
-	mutex_lock(&dev->lock_printer_io);
-	spin_lock_irqsave(&dev->lock, flags);
-
-	/* Check if a printer reset happens while we have interrupts on */
-	dev->reset_printer = 0;
-
-	/* Check if there is any available write buffers */
-	if (likely(list_empty(&dev->tx_reqs))) {
-		/* Turn interrupts back on before sleeping. */
-		spin_unlock_irqrestore(&dev->lock, flags);
-
-		/*
-		 * If write buffers are available check if this is
-		 * a NON-Blocking call or not.
-		 */
-		if (fd->f_flags & (O_NONBLOCK|O_NDELAY)) {
-			mutex_unlock(&dev->lock_printer_io);
-			return -EAGAIN;
-		}
-
-		/* Sleep until a write buffer is available */
-		wait_event_interruptible(dev->tx_wait,
-				(likely(!list_empty(&dev->tx_reqs))));
-		spin_lock_irqsave(&dev->lock, flags);
-	}
-
-	while (likely(!list_empty(&dev->tx_reqs)) && len) {
-
-		if (len > USB_BUFSIZE)
-			size = USB_BUFSIZE;
-		else
-			size = len;
-
-		req = container_of(dev->tx_reqs.next, struct usb_request,
-				list);
-		list_del_init(&req->list);
-
-		req->complete = tx_complete;
-		req->length = size;
-
-		/* Check if we need to send a zero length packet. */
-		if (len > size)
-			/* They will be more TX requests so no yet. */
-			req->zero = 0;
-		else
-			/* If the data amount is not a multple of the
-			 * maxpacket size then send a zero length packet.
-			 */
-			req->zero = ((len % dev->in_ep->maxpacket) == 0);
-
-		/* Don't leave irqs off while doing memory copies */
-		spin_unlock_irqrestore(&dev->lock, flags);
-
-		if (copy_from_user(req->buf, buf, size)) {
-			list_add(&req->list, &dev->tx_reqs);
-			mutex_unlock(&dev->lock_printer_io);
-			return bytes_copied;
-		}
-
-		bytes_copied += size;
-		len -= size;
-		buf += size;
-
-		spin_lock_irqsave(&dev->lock, flags);
-
-		/* We've disconnected or reset so free the req and buffer */
-		if (dev->reset_printer) {
-			list_add(&req->list, &dev->tx_reqs);
-			spin_unlock_irqrestore(&dev->lock, flags);
-			mutex_unlock(&dev->lock_printer_io);
-			return -EAGAIN;
-		}
-
-		if (usb_ep_queue(dev->in_ep, req, GFP_ATOMIC)) {
-			list_add(&req->list, &dev->tx_reqs);
-			spin_unlock_irqrestore(&dev->lock, flags);
-			mutex_unlock(&dev->lock_printer_io);
-			return -EAGAIN;
-		}
-
-		list_add(&req->list, &dev->tx_reqs_active);
-
-	}
-
-	spin_unlock_irqrestore(&dev->lock, flags);
-	mutex_unlock(&dev->lock_printer_io);
-
-	DBG(dev, "printer_write sent %d bytes\n", (int)bytes_copied);
-
-	if (bytes_copied) {
-		return bytes_copied;
-	} else {
-		return -EAGAIN;
-	}
-}
-
-static int
-printer_fsync(struct file *fd, loff_t start, loff_t end, int datasync)
-{
-	struct printer_dev	*dev = fd->private_data;
-	struct inode *inode = file_inode(fd);
-	unsigned long		flags;
-	int			tx_list_empty;
-
-	mutex_lock(&inode->i_mutex);
-	spin_lock_irqsave(&dev->lock, flags);
-	tx_list_empty = (likely(list_empty(&dev->tx_reqs)));
-	spin_unlock_irqrestore(&dev->lock, flags);
-
-	if (!tx_list_empty) {
-		/* Sleep until all data has been sent */
-		wait_event_interruptible(dev->tx_flush_wait,
-				(likely(list_empty(&dev->tx_reqs_active))));
-	}
-	mutex_unlock(&inode->i_mutex);
-
-	return 0;
-}
-
-static unsigned int
-printer_poll(struct file *fd, poll_table *wait)
-{
-	struct printer_dev	*dev = fd->private_data;
-	unsigned long		flags;
-	int			status = 0;
-
-	mutex_lock(&dev->lock_printer_io);
-	spin_lock_irqsave(&dev->lock, flags);
-	setup_rx_reqs(dev);
-	spin_unlock_irqrestore(&dev->lock, flags);
-	mutex_unlock(&dev->lock_printer_io);
-
-	poll_wait(fd, &dev->rx_wait, wait);
-	poll_wait(fd, &dev->tx_wait, wait);
-
-	spin_lock_irqsave(&dev->lock, flags);
-	if (likely(!list_empty(&dev->tx_reqs)))
-		status |= POLLOUT | POLLWRNORM;
-
-	if (likely(dev->current_rx_bytes) ||
-			likely(!list_empty(&dev->rx_buffers)))
-		status |= POLLIN | POLLRDNORM;
-
-	spin_unlock_irqrestore(&dev->lock, flags);
-
-	return status;
-}
-
-static long
-printer_ioctl(struct file *fd, unsigned int code, unsigned long arg)
-{
-	struct printer_dev	*dev = fd->private_data;
-	unsigned long		flags;
-	int			status = 0;
-
-	DBG(dev, "printer_ioctl: cmd=0x%4.4x, arg=%lu\n", code, arg);
-
-	/* handle ioctls */
-
-	spin_lock_irqsave(&dev->lock, flags);
-
-	switch (code) {
-	case GADGET_GET_PRINTER_STATUS:
-		status = (int)dev->printer_status;
-		break;
-	case GADGET_SET_PRINTER_STATUS:
-		dev->printer_status = (u8)arg;
-		break;
-	default:
-		/* could not handle ioctl */
-		DBG(dev, "printer_ioctl: ERROR cmd=0x%4.4xis not supported\n",
-				code);
-		status = -ENOTTY;
-	}
-
-	spin_unlock_irqrestore(&dev->lock, flags);
-
-	return status;
-}
-
-/* used after endpoint configuration */
-static const struct file_operations printer_io_operations = {
-	.owner =	THIS_MODULE,
-	.open =		printer_open,
-	.read =		printer_read,
-	.write =	printer_write,
-	.fsync =	printer_fsync,
-	.poll =		printer_poll,
-	.unlocked_ioctl = printer_ioctl,
-	.release =	printer_close,
-	.llseek =	noop_llseek,
-};
-
-/*-------------------------------------------------------------------------*/
-
-static int
-set_printer_interface(struct printer_dev *dev)
-{
-	int			result = 0;
-
-	dev->in_ep->desc = ep_desc(dev->gadget, &fs_ep_in_desc, &hs_ep_in_desc,
-				&ss_ep_in_desc);
-	dev->in_ep->driver_data = dev;
-
-	dev->out_ep->desc = ep_desc(dev->gadget, &fs_ep_out_desc,
-				    &hs_ep_out_desc, &ss_ep_out_desc);
-	dev->out_ep->driver_data = dev;
-
-	result = usb_ep_enable(dev->in_ep);
-	if (result != 0) {
-		DBG(dev, "enable %s --> %d\n", dev->in_ep->name, result);
-		goto done;
-	}
-
-	result = usb_ep_enable(dev->out_ep);
-	if (result != 0) {
-		DBG(dev, "enable %s --> %d\n", dev->in_ep->name, result);
-		goto done;
-	}
-
-done:
-	/* on error, disable any endpoints  */
-	if (result != 0) {
-		(void) usb_ep_disable(dev->in_ep);
-		(void) usb_ep_disable(dev->out_ep);
-		dev->in_ep->desc = NULL;
-		dev->out_ep->desc = NULL;
-	}
-
-	/* caller is responsible for cleanup on error */
-	return result;
-}
-
-static void printer_reset_interface(struct printer_dev *dev)
-{
-	if (dev->interface < 0)
-		return;
-
-	DBG(dev, "%s\n", __func__);
-
-	if (dev->in_ep->desc)
-		usb_ep_disable(dev->in_ep);
-
-	if (dev->out_ep->desc)
-		usb_ep_disable(dev->out_ep);
-
-	dev->in_ep->desc = NULL;
-	dev->out_ep->desc = NULL;
-	dev->interface = -1;
-}
-
-/* Change our operational Interface. */
-static int set_interface(struct printer_dev *dev, unsigned number)
-{
-	int			result = 0;
-
-	/* Free the current interface */
-	printer_reset_interface(dev);
-
-	result = set_printer_interface(dev);
-	if (result)
-		printer_reset_interface(dev);
-	else
-		dev->interface = number;
-
-	if (!result)
-		INFO(dev, "Using interface %x\n", number);
-
-	return result;
-}
-
-static void printer_soft_reset(struct printer_dev *dev)
-{
-	struct usb_request	*req;
-
-	INFO(dev, "Received Printer Reset Request\n");
-
-	if (usb_ep_disable(dev->in_ep))
-		DBG(dev, "Failed to disable USB in_ep\n");
-	if (usb_ep_disable(dev->out_ep))
-		DBG(dev, "Failed to disable USB out_ep\n");
-
-	if (dev->current_rx_req != NULL) {
-		list_add(&dev->current_rx_req->list, &dev->rx_reqs);
-		dev->current_rx_req = NULL;
-	}
-	dev->current_rx_bytes = 0;
-	dev->current_rx_buf = NULL;
-	dev->reset_printer = 1;
-
-	while (likely(!(list_empty(&dev->rx_buffers)))) {
-		req = container_of(dev->rx_buffers.next, struct usb_request,
-				list);
-		list_del_init(&req->list);
-		list_add(&req->list, &dev->rx_reqs);
-	}
-
-	while (likely(!(list_empty(&dev->rx_reqs_active)))) {
-		req = container_of(dev->rx_buffers.next, struct usb_request,
-				list);
-		list_del_init(&req->list);
-		list_add(&req->list, &dev->rx_reqs);
-	}
-
-	while (likely(!(list_empty(&dev->tx_reqs_active)))) {
-		req = container_of(dev->tx_reqs_active.next,
-				struct usb_request, list);
-		list_del_init(&req->list);
-		list_add(&req->list, &dev->tx_reqs);
-	}
-
-	if (usb_ep_enable(dev->in_ep))
-		DBG(dev, "Failed to enable USB in_ep\n");
-	if (usb_ep_enable(dev->out_ep))
-		DBG(dev, "Failed to enable USB out_ep\n");
-
-	wake_up_interruptible(&dev->rx_wait);
-	wake_up_interruptible(&dev->tx_wait);
-	wake_up_interruptible(&dev->tx_flush_wait);
-}
-
-/*-------------------------------------------------------------------------*/
-
-/*
- * The setup() callback implements all the ep0 functionality that's not
- * handled lower down.
- */
-static int printer_func_setup(struct usb_function *f,
-		const struct usb_ctrlrequest *ctrl)
-{
-	struct printer_dev *dev = container_of(f, struct printer_dev, function);
-	struct usb_composite_dev *cdev = f->config->cdev;
-	struct usb_request	*req = cdev->req;
-	int			value = -EOPNOTSUPP;
-	u16			wIndex = le16_to_cpu(ctrl->wIndex);
-	u16			wValue = le16_to_cpu(ctrl->wValue);
-	u16			wLength = le16_to_cpu(ctrl->wLength);
-
-	DBG(dev, "ctrl req%02x.%02x v%04x i%04x l%d\n",
-		ctrl->bRequestType, ctrl->bRequest, wValue, wIndex, wLength);
-
-	switch (ctrl->bRequestType&USB_TYPE_MASK) {
-	case USB_TYPE_CLASS:
-		switch (ctrl->bRequest) {
-		case 0: /* Get the IEEE-1284 PNP String */
-			/* Only one printer interface is supported. */
-			if ((wIndex>>8) != dev->interface)
-				break;
-
-			value = (pnp_string[0]<<8)|pnp_string[1];
-			memcpy(req->buf, pnp_string, value);
-			DBG(dev, "1284 PNP String: %x %s\n", value,
-					&pnp_string[2]);
-			break;
-
-		case 1: /* Get Port Status */
-			/* Only one printer interface is supported. */
-			if (wIndex != dev->interface)
-				break;
-
-			*(u8 *)req->buf = dev->printer_status;
-			value = min(wLength, (u16) 1);
-			break;
-
-		case 2: /* Soft Reset */
-			/* Only one printer interface is supported. */
-			if (wIndex != dev->interface)
-				break;
-
-			printer_soft_reset(dev);
-
-			value = 0;
-			break;
-
-		default:
-			goto unknown;
-		}
-		break;
-
-	default:
-unknown:
-		VDBG(dev,
-			"unknown ctrl req%02x.%02x v%04x i%04x l%d\n",
-			ctrl->bRequestType, ctrl->bRequest,
-			wValue, wIndex, wLength);
-		break;
-	}
-	/* host either stalls (value < 0) or reports success */
-	return value;
-}
-
-static int __init printer_func_bind(struct usb_configuration *c,
-		struct usb_function *f)
-{
-	struct printer_dev *dev = container_of(f, struct printer_dev, function);
-	struct usb_composite_dev *cdev = c->cdev;
-	struct usb_ep *in_ep;
-	struct usb_ep *out_ep = NULL;
-	int id;
-	int ret;
-
-	id = usb_interface_id(c, f);
-	if (id < 0)
-		return id;
-	intf_desc.bInterfaceNumber = id;
-
-	/* all we really need is bulk IN/OUT */
-	in_ep = usb_ep_autoconfig(cdev->gadget, &fs_ep_in_desc);
-	if (!in_ep) {
-autoconf_fail:
-		dev_err(&cdev->gadget->dev, "can't autoconfigure on %s\n",
-			cdev->gadget->name);
-		return -ENODEV;
-	}
-	in_ep->driver_data = in_ep;	/* claim */
-
-	out_ep = usb_ep_autoconfig(cdev->gadget, &fs_ep_out_desc);
-	if (!out_ep)
-		goto autoconf_fail;
-	out_ep->driver_data = out_ep;	/* claim */
-
-	/* assumes that all endpoints are dual-speed */
-	hs_ep_in_desc.bEndpointAddress = fs_ep_in_desc.bEndpointAddress;
-	hs_ep_out_desc.bEndpointAddress = fs_ep_out_desc.bEndpointAddress;
-	ss_ep_in_desc.bEndpointAddress = fs_ep_in_desc.bEndpointAddress;
-	ss_ep_out_desc.bEndpointAddress = fs_ep_out_desc.bEndpointAddress;
-
-	ret = usb_assign_descriptors(f, fs_printer_function,
-			hs_printer_function, ss_printer_function);
-	if (ret)
-		return ret;
-
-	dev->in_ep = in_ep;
-	dev->out_ep = out_ep;
-	return 0;
-}
-
-static void printer_func_unbind(struct usb_configuration *c,
-		struct usb_function *f)
-{
-	usb_free_all_descriptors(f);
-}
-
-static int printer_func_set_alt(struct usb_function *f,
-		unsigned intf, unsigned alt)
-{
-	struct printer_dev *dev = container_of(f, struct printer_dev, function);
-	int ret = -ENOTSUPP;
-
-	if (!alt)
-		ret = set_interface(dev, intf);
-
-	return ret;
-}
-
-static void printer_func_disable(struct usb_function *f)
-{
-	struct printer_dev *dev = container_of(f, struct printer_dev, function);
-	unsigned long		flags;
-
-	DBG(dev, "%s\n", __func__);
-
-	spin_lock_irqsave(&dev->lock, flags);
-	printer_reset_interface(dev);
-	spin_unlock_irqrestore(&dev->lock, flags);
-}
-
-static void printer_cfg_unbind(struct usb_configuration *c)
-{
-	struct printer_dev	*dev;
-	struct usb_request	*req;
-
-	dev = &usb_printer_gadget;
-
-	DBG(dev, "%s\n", __func__);
-
-	/* Remove sysfs files */
-	device_destroy(usb_gadget_class, g_printer_devno);
-
-	/* Remove Character Device */
-	cdev_del(&dev->printer_cdev);
-
-	/* we must already have been disconnected ... no i/o may be active */
-	WARN_ON(!list_empty(&dev->tx_reqs_active));
-	WARN_ON(!list_empty(&dev->rx_reqs_active));
-
-	/* Free all memory for this driver. */
-	while (!list_empty(&dev->tx_reqs)) {
-		req = container_of(dev->tx_reqs.next, struct usb_request,
-				list);
-		list_del(&req->list);
-		printer_req_free(dev->in_ep, req);
-	}
-
-	if (dev->current_rx_req != NULL)
-		printer_req_free(dev->out_ep, dev->current_rx_req);
-
-	while (!list_empty(&dev->rx_reqs)) {
-		req = container_of(dev->rx_reqs.next,
-				struct usb_request, list);
-		list_del(&req->list);
-		printer_req_free(dev->out_ep, req);
-	}
-
-	while (!list_empty(&dev->rx_buffers)) {
-		req = container_of(dev->rx_buffers.next,
-				struct usb_request, list);
-		list_del(&req->list);
-		printer_req_free(dev->out_ep, req);
-	}
-}
-
 static struct usb_configuration printer_cfg_driver = {
 	.label			= "printer",
-	.unbind			= printer_cfg_unbind,
 	.bConfigurationValue	= 1,
 	.bmAttributes		= USB_CONFIG_ATT_ONE | USB_CONFIG_ATT_SELFPOWER,
 };
 
-static int __init printer_bind_config(struct usb_configuration *c)
+static int __init printer_do_config(struct usb_configuration *c)
 {
 	struct usb_gadget	*gadget = c->cdev->gadget;
-	struct printer_dev	*dev;
-	int			status = -ENOMEM;
-	size_t			len;
-	u32			i;
-	struct usb_request	*req;
+	int			status = 0;
 
 	usb_ep_autoconfig_reset(gadget);
 
-	dev = &usb_printer_gadget;
-
-	dev->function.name = shortname;
-	dev->function.bind = printer_func_bind;
-	dev->function.setup = printer_func_setup;
-	dev->function.unbind = printer_func_unbind;
-	dev->function.set_alt = printer_func_set_alt;
-	dev->function.disable = printer_func_disable;
-
-	status = usb_add_function(c, &dev->function);
-	if (status)
-		return status;
-
-	/* Setup the sysfs files for the printer gadget. */
-	dev->pdev = device_create(usb_gadget_class, NULL, g_printer_devno,
-				  NULL, "g_printer");
-	if (IS_ERR(dev->pdev)) {
-		ERROR(dev, "Failed to create device: g_printer\n");
-		status = PTR_ERR(dev->pdev);
-		goto fail;
-	}
-
-	/*
-	 * Register a character device as an interface to a user mode
-	 * program that handles the printer specific functionality.
-	 */
-	cdev_init(&dev->printer_cdev, &printer_io_operations);
-	dev->printer_cdev.owner = THIS_MODULE;
-	status = cdev_add(&dev->printer_cdev, g_printer_devno, 1);
-	if (status) {
-		ERROR(dev, "Failed to open char device\n");
-		goto fail;
-	}
-
-	if (iPNPstring)
-		strlcpy(&pnp_string[2], iPNPstring, (sizeof pnp_string)-2);
-
-	len = strlen(pnp_string);
-	pnp_string[0] = (len >> 8) & 0xFF;
-	pnp_string[1] = len & 0xFF;
-
 	usb_gadget_set_selfpowered(gadget);
 
 	if (gadget_is_otg(gadget)) {
@@ -1222,86 +141,64 @@ static int __init printer_bind_config(struct usb_configuration *c)
 		printer_cfg_driver.bmAttributes |= USB_CONFIG_ATT_WAKEUP;
 	}
 
-	spin_lock_init(&dev->lock);
-	mutex_init(&dev->lock_printer_io);
-	INIT_LIST_HEAD(&dev->tx_reqs);
-	INIT_LIST_HEAD(&dev->tx_reqs_active);
-	INIT_LIST_HEAD(&dev->rx_reqs);
-	INIT_LIST_HEAD(&dev->rx_reqs_active);
-	INIT_LIST_HEAD(&dev->rx_buffers);
-	init_waitqueue_head(&dev->rx_wait);
-	init_waitqueue_head(&dev->tx_wait);
-	init_waitqueue_head(&dev->tx_flush_wait);
-
-	dev->interface = -1;
-	dev->printer_cdev_open = 0;
-	dev->printer_status = PRINTER_NOT_ERROR;
-	dev->current_rx_req = NULL;
-	dev->current_rx_bytes = 0;
-	dev->current_rx_buf = NULL;
-
-	for (i = 0; i < QLEN; i++) {
-		req = printer_req_alloc(dev->in_ep, USB_BUFSIZE, GFP_KERNEL);
-		if (!req) {
-			while (!list_empty(&dev->tx_reqs)) {
-				req = container_of(dev->tx_reqs.next,
-						struct usb_request, list);
-				list_del(&req->list);
-				printer_req_free(dev->in_ep, req);
-			}
-			return -ENOMEM;
-		}
-		list_add(&req->list, &dev->tx_reqs);
-	}
-
-	for (i = 0; i < QLEN; i++) {
-		req = printer_req_alloc(dev->out_ep, USB_BUFSIZE, GFP_KERNEL);
-		if (!req) {
-			while (!list_empty(&dev->rx_reqs)) {
-				req = container_of(dev->rx_reqs.next,
-						struct usb_request, list);
-				list_del(&req->list);
-				printer_req_free(dev->out_ep, req);
-			}
-			return -ENOMEM;
-		}
-		list_add(&req->list, &dev->rx_reqs);
-	}
-
-	/* finish hookup to lower layer ... */
-	dev->gadget = gadget;
+	f_printer = usb_get_function(fi_printer);
+	if (IS_ERR(f_printer))
+		return PTR_ERR(f_printer);
 
-	INFO(dev, "%s, version: " DRIVER_VERSION "\n", driver_desc);
-	return 0;
+	status = usb_add_function(c, f_printer);
+	if (status < 0)
+		usb_put_function(f_printer);
 
-fail:
-	printer_cfg_unbind(c);
 	return status;
 }
 
-static int printer_unbind(struct usb_composite_dev *cdev)
-{
-	return 0;
-}
-
 static int __init printer_bind(struct usb_composite_dev *cdev)
 {
-	int ret;
+	struct f_printer_opts *opts;
+	int ret, len;
+
+	fi_printer = usb_get_function_instance("printer");
+	if (IS_ERR(fi_printer))
+		return PTR_ERR(fi_printer);
+
+	if (iPNPstring)
+		strlcpy(&pnp_string[2], iPNPstring, PNP_STRING_LEN - 2);
+
+	len = strlen(pnp_string);
+	pnp_string[0] = (len >> 8) & 0xFF;
+	pnp_string[1] = len & 0xFF;
+
+	opts = container_of(fi_printer, struct f_printer_opts, func_inst);
+	opts->minor = 0;
+	memcpy(opts->pnp_string, pnp_string, PNP_STRING_LEN);
+	opts->q_len = QLEN;
 
 	ret = usb_string_ids_tab(cdev, strings);
-	if (ret < 0)
+	if (ret < 0) {
+		usb_put_function_instance(fi_printer);
 		return ret;
+	}
 	device_desc.iManufacturer = strings[USB_GADGET_MANUFACTURER_IDX].id;
 	device_desc.iProduct = strings[USB_GADGET_PRODUCT_IDX].id;
 	device_desc.iSerialNumber = strings[USB_GADGET_SERIAL_IDX].id;
 
-	ret = usb_add_config(cdev, &printer_cfg_driver, printer_bind_config);
-	if (ret)
+	ret = usb_add_config(cdev, &printer_cfg_driver, printer_do_config);
+	if (ret) {
+		usb_put_function_instance(fi_printer);
 		return ret;
+	}
 	usb_composite_overwrite_options(cdev, &coverwrite);
 	return ret;
 }
 
+static int __exit printer_unbind(struct usb_composite_dev *cdev)
+{
+	usb_put_function(f_printer);
+	usb_put_function_instance(fi_printer);
+
+	return 0;
+}
+
 static __refdata struct usb_composite_driver printer_driver = {
 	.name           = shortname,
 	.dev            = &device_desc,
@@ -1311,47 +208,7 @@ static __refdata struct usb_composite_driver printer_driver = {
 	.unbind		= printer_unbind,
 };
 
-static int __init
-init(void)
-{
-	int status;
-
-	usb_gadget_class = class_create(THIS_MODULE, "usb_printer_gadget");
-	if (IS_ERR(usb_gadget_class)) {
-		status = PTR_ERR(usb_gadget_class);
-		pr_err("unable to create usb_gadget class %d\n", status);
-		return status;
-	}
-
-	status = alloc_chrdev_region(&g_printer_devno, 0, 1,
-			"USB printer gadget");
-	if (status) {
-		pr_err("alloc_chrdev_region %d\n", status);
-		class_destroy(usb_gadget_class);
-		return status;
-	}
-
-	status = usb_composite_probe(&printer_driver);
-	if (status) {
-		class_destroy(usb_gadget_class);
-		unregister_chrdev_region(g_printer_devno, 1);
-		pr_err("usb_gadget_probe_driver %x\n", status);
-	}
-
-	return status;
-}
-module_init(init);
-
-static void __exit
-cleanup(void)
-{
-	mutex_lock(&usb_printer_gadget.lock_printer_io);
-	usb_composite_unregister(&printer_driver);
-	unregister_chrdev_region(g_printer_devno, 1);
-	class_destroy(usb_gadget_class);
-	mutex_unlock(&usb_printer_gadget.lock_printer_io);
-}
-module_exit(cleanup);
+module_usb_composite_driver(printer_driver);
 
 MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_AUTHOR("Craig Nadler");
diff --git a/drivers/usb/gadget/legacy/tcm_usb_gadget.c b/drivers/usb/gadget/legacy/tcm_usb_gadget.c
index 3a49416..6e0a019 100644
--- a/drivers/usb/gadget/legacy/tcm_usb_gadget.c
+++ b/drivers/usb/gadget/legacy/tcm_usb_gadget.c
@@ -1740,10 +1740,9 @@ static int tcm_usbg_make_nexus(struct usbg_tpg *tpg, char *name)
 		goto err_session;
 	}
 	/*
-	 * Now register the TCM vHost virtual I_T Nexus as active with the
-	 * call to __transport_register_session()
+	 * Now register the TCM vHost virtual I_T Nexus as active.
 	 */
-	__transport_register_session(se_tpg, tv_nexus->tvn_se_sess->se_node_acl,
+	transport_register_session(se_tpg, tv_nexus->tvn_se_sess->se_node_acl,
 			tv_nexus->tvn_se_sess, tv_nexus);
 	tpg->tpg_nexus = tv_nexus;
 	mutex_unlock(&tpg->tpg_mutex);
diff --git a/drivers/usb/gadget/legacy/zero.c b/drivers/usb/gadget/legacy/zero.c
index ff97ac93..5ee9515 100644
--- a/drivers/usb/gadget/legacy/zero.c
+++ b/drivers/usb/gadget/legacy/zero.c
@@ -68,8 +68,6 @@ static struct usb_zero_options gzero_options = {
 	.isoc_maxpacket = GZERO_ISOC_MAXPACKET,
 	.bulk_buflen = GZERO_BULK_BUFLEN,
 	.qlen = GZERO_QLEN,
-	.int_interval = GZERO_INT_INTERVAL,
-	.int_maxpacket = GZERO_INT_MAXPACKET,
 };
 
 /*-------------------------------------------------------------------------*/
@@ -268,21 +266,6 @@ module_param_named(isoc_maxburst, gzero_options.isoc_maxburst, uint,
 		S_IRUGO|S_IWUSR);
 MODULE_PARM_DESC(isoc_maxburst, "0 - 15 (ss only)");
 
-module_param_named(int_interval, gzero_options.int_interval, uint,
-		S_IRUGO|S_IWUSR);
-MODULE_PARM_DESC(int_interval, "1 - 16");
-
-module_param_named(int_maxpacket, gzero_options.int_maxpacket, uint,
-		S_IRUGO|S_IWUSR);
-MODULE_PARM_DESC(int_maxpacket, "0 - 1023 (fs), 0 - 1024 (hs/ss)");
-
-module_param_named(int_mult, gzero_options.int_mult, uint, S_IRUGO|S_IWUSR);
-MODULE_PARM_DESC(int_mult, "0 - 2 (hs/ss only)");
-
-module_param_named(int_maxburst, gzero_options.int_maxburst, uint,
-		S_IRUGO|S_IWUSR);
-MODULE_PARM_DESC(int_maxburst, "0 - 15 (ss only)");
-
 static struct usb_function *func_lb;
 static struct usb_function_instance *func_inst_lb;
 
@@ -318,10 +301,6 @@ static int __init zero_bind(struct usb_composite_dev *cdev)
 	ss_opts->isoc_maxpacket = gzero_options.isoc_maxpacket;
 	ss_opts->isoc_mult = gzero_options.isoc_mult;
 	ss_opts->isoc_maxburst = gzero_options.isoc_maxburst;
-	ss_opts->int_interval = gzero_options.int_interval;
-	ss_opts->int_maxpacket = gzero_options.int_maxpacket;
-	ss_opts->int_mult = gzero_options.int_mult;
-	ss_opts->int_maxburst = gzero_options.int_maxburst;
 	ss_opts->bulk_buflen = gzero_options.bulk_buflen;
 
 	func_ss = usb_get_function(func_inst_ss);
diff --git a/drivers/usb/gadget/udc/atmel_usba_udc.c b/drivers/usb/gadget/udc/atmel_usba_udc.c
index d79cb35..4c01953 100644
--- a/drivers/usb/gadget/udc/atmel_usba_udc.c
+++ b/drivers/usb/gadget/udc/atmel_usba_udc.c
@@ -152,7 +152,7 @@ static int regs_dbg_open(struct inode *inode, struct file *file)
 
 	spin_lock_irq(&udc->lock);
 	for (i = 0; i < inode->i_size / 4; i++)
-		data[i] = __raw_readl(udc->regs + i * 4);
+		data[i] = usba_io_readl(udc->regs + i * 4);
 	spin_unlock_irq(&udc->lock);
 
 	file->private_data = data;
@@ -1249,7 +1249,7 @@ static int handle_ep0_setup(struct usba_udc *udc, struct usba_ep *ep,
 		if (crq->wLength != cpu_to_le16(sizeof(status)))
 			goto stall;
 		ep->state = DATA_STAGE_IN;
-		__raw_writew(status, ep->fifo);
+		usba_io_writew(status, ep->fifo);
 		usba_ep_writel(ep, SET_STA, USBA_TX_PK_RDY);
 		break;
 	}
@@ -1739,7 +1739,72 @@ static irqreturn_t usba_udc_irq(int irq, void *devid)
 	return IRQ_HANDLED;
 }
 
-static irqreturn_t usba_vbus_irq(int irq, void *devid)
+static int start_clock(struct usba_udc *udc)
+{
+	int ret;
+
+	if (udc->clocked)
+		return 0;
+
+	ret = clk_prepare_enable(udc->pclk);
+	if (ret)
+		return ret;
+	ret = clk_prepare_enable(udc->hclk);
+	if (ret) {
+		clk_disable_unprepare(udc->pclk);
+		return ret;
+	}
+
+	udc->clocked = true;
+	return 0;
+}
+
+static void stop_clock(struct usba_udc *udc)
+{
+	if (!udc->clocked)
+		return;
+
+	clk_disable_unprepare(udc->hclk);
+	clk_disable_unprepare(udc->pclk);
+
+	udc->clocked = false;
+}
+
+static int usba_start(struct usba_udc *udc)
+{
+	unsigned long flags;
+	int ret;
+
+	ret = start_clock(udc);
+	if (ret)
+		return ret;
+
+	spin_lock_irqsave(&udc->lock, flags);
+	toggle_bias(udc, 1);
+	usba_writel(udc, CTRL, USBA_ENABLE_MASK);
+	usba_int_enb_set(udc, USBA_END_OF_RESET);
+	spin_unlock_irqrestore(&udc->lock, flags);
+
+	return 0;
+}
+
+static void usba_stop(struct usba_udc *udc)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&udc->lock, flags);
+	udc->gadget.speed = USB_SPEED_UNKNOWN;
+	reset_all_endpoints(udc);
+
+	/* This will also disable the DP pullup */
+	toggle_bias(udc, 0);
+	usba_writel(udc, CTRL, USBA_DISABLE_MASK);
+	spin_unlock_irqrestore(&udc->lock, flags);
+
+	stop_clock(udc);
+}
+
+static irqreturn_t usba_vbus_irq_thread(int irq, void *devid)
 {
 	struct usba_udc *udc = devid;
 	int vbus;
@@ -1747,35 +1812,22 @@ static irqreturn_t usba_vbus_irq(int irq, void *devid)
 	/* debounce */
 	udelay(10);
 
-	spin_lock(&udc->lock);
-
-	/* May happen if Vbus pin toggles during probe() */
-	if (!udc->driver)
-		goto out;
+	mutex_lock(&udc->vbus_mutex);
 
 	vbus = vbus_is_present(udc);
 	if (vbus != udc->vbus_prev) {
 		if (vbus) {
-			toggle_bias(udc, 1);
-			usba_writel(udc, CTRL, USBA_ENABLE_MASK);
-			usba_int_enb_set(udc, USBA_END_OF_RESET);
+			usba_start(udc);
 		} else {
-			udc->gadget.speed = USB_SPEED_UNKNOWN;
-			reset_all_endpoints(udc);
-			toggle_bias(udc, 0);
-			usba_writel(udc, CTRL, USBA_DISABLE_MASK);
-			if (udc->driver->disconnect) {
-				spin_unlock(&udc->lock);
+			usba_stop(udc);
+
+			if (udc->driver->disconnect)
 				udc->driver->disconnect(&udc->gadget);
-				spin_lock(&udc->lock);
-			}
 		}
 		udc->vbus_prev = vbus;
 	}
 
-out:
-	spin_unlock(&udc->lock);
-
+	mutex_unlock(&udc->vbus_mutex);
 	return IRQ_HANDLED;
 }
 
@@ -1787,55 +1839,47 @@ static int atmel_usba_start(struct usb_gadget *gadget,
 	unsigned long flags;
 
 	spin_lock_irqsave(&udc->lock, flags);
-
 	udc->devstatus = 1 << USB_DEVICE_SELF_POWERED;
 	udc->driver = driver;
 	spin_unlock_irqrestore(&udc->lock, flags);
 
-	ret = clk_prepare_enable(udc->pclk);
-	if (ret)
-		return ret;
-	ret = clk_prepare_enable(udc->hclk);
-	if (ret) {
-		clk_disable_unprepare(udc->pclk);
-		return ret;
-	}
+	mutex_lock(&udc->vbus_mutex);
 
-	udc->vbus_prev = 0;
 	if (gpio_is_valid(udc->vbus_pin))
 		enable_irq(gpio_to_irq(udc->vbus_pin));
 
 	/* If Vbus is present, enable the controller and wait for reset */
-	spin_lock_irqsave(&udc->lock, flags);
-	if (vbus_is_present(udc) && udc->vbus_prev == 0) {
-		toggle_bias(udc, 1);
-		usba_writel(udc, CTRL, USBA_ENABLE_MASK);
-		usba_int_enb_set(udc, USBA_END_OF_RESET);
+	udc->vbus_prev = vbus_is_present(udc);
+	if (udc->vbus_prev) {
+		ret = usba_start(udc);
+		if (ret)
+			goto err;
 	}
-	spin_unlock_irqrestore(&udc->lock, flags);
 
+	mutex_unlock(&udc->vbus_mutex);
 	return 0;
+
+err:
+	if (gpio_is_valid(udc->vbus_pin))
+		disable_irq(gpio_to_irq(udc->vbus_pin));
+
+	mutex_unlock(&udc->vbus_mutex);
+
+	spin_lock_irqsave(&udc->lock, flags);
+	udc->devstatus &= ~(1 << USB_DEVICE_SELF_POWERED);
+	udc->driver = NULL;
+	spin_unlock_irqrestore(&udc->lock, flags);
+	return ret;
 }
 
 static int atmel_usba_stop(struct usb_gadget *gadget)
 {
 	struct usba_udc *udc = container_of(gadget, struct usba_udc, gadget);
-	unsigned long flags;
 
 	if (gpio_is_valid(udc->vbus_pin))
 		disable_irq(gpio_to_irq(udc->vbus_pin));
 
-	spin_lock_irqsave(&udc->lock, flags);
-	udc->gadget.speed = USB_SPEED_UNKNOWN;
-	reset_all_endpoints(udc);
-	spin_unlock_irqrestore(&udc->lock, flags);
-
-	/* This will also disable the DP pullup */
-	toggle_bias(udc, 0);
-	usba_writel(udc, CTRL, USBA_DISABLE_MASK);
-
-	clk_disable_unprepare(udc->hclk);
-	clk_disable_unprepare(udc->pclk);
+	usba_stop(udc);
 
 	udc->driver = NULL;
 
@@ -2057,6 +2101,7 @@ static int usba_udc_probe(struct platform_device *pdev)
 		return PTR_ERR(hclk);
 
 	spin_lock_init(&udc->lock);
+	mutex_init(&udc->vbus_mutex);
 	udc->pdev = pdev;
 	udc->pclk = pclk;
 	udc->hclk = hclk;
@@ -2111,17 +2156,17 @@ static int usba_udc_probe(struct platform_device *pdev)
 
 	if (gpio_is_valid(udc->vbus_pin)) {
 		if (!devm_gpio_request(&pdev->dev, udc->vbus_pin, "atmel_usba_udc")) {
-			ret = devm_request_irq(&pdev->dev,
-					gpio_to_irq(udc->vbus_pin),
-					usba_vbus_irq, 0,
+			irq_set_status_flags(gpio_to_irq(udc->vbus_pin),
+					IRQ_NOAUTOEN);
+			ret = devm_request_threaded_irq(&pdev->dev,
+					gpio_to_irq(udc->vbus_pin), NULL,
+					usba_vbus_irq_thread, IRQF_ONESHOT,
 					"atmel_usba_udc", udc);
 			if (ret) {
 				udc->vbus_pin = -ENODEV;
 				dev_warn(&udc->pdev->dev,
 					 "failed to request vbus irq; "
 					 "assuming always on\n");
-			} else {
-				disable_irq(gpio_to_irq(udc->vbus_pin));
 			}
 		} else {
 			/* gpio_request fail so use -EINVAL for gpio_is_valid */
@@ -2132,6 +2177,7 @@ static int usba_udc_probe(struct platform_device *pdev)
 	ret = usb_add_gadget_udc(&pdev->dev, &udc->gadget);
 	if (ret)
 		return ret;
+	device_init_wakeup(&pdev->dev, 1);
 
 	usba_init_debugfs(udc);
 	for (i = 1; i < udc->num_ep; i++)
@@ -2147,6 +2193,7 @@ static int __exit usba_udc_remove(struct platform_device *pdev)
 
 	udc = platform_get_drvdata(pdev);
 
+	device_init_wakeup(&pdev->dev, 0);
 	usb_del_gadget_udc(&udc->gadget);
 
 	for (i = 1; i < udc->num_ep; i++)
@@ -2156,10 +2203,65 @@ static int __exit usba_udc_remove(struct platform_device *pdev)
 	return 0;
 }
 
+#ifdef CONFIG_PM
+static int usba_udc_suspend(struct device *dev)
+{
+	struct usba_udc *udc = dev_get_drvdata(dev);
+
+	/* Not started */
+	if (!udc->driver)
+		return 0;
+
+	mutex_lock(&udc->vbus_mutex);
+
+	if (!device_may_wakeup(dev)) {
+		usba_stop(udc);
+		goto out;
+	}
+
+	/*
+	 * Device may wake up. We stay clocked if we failed
+	 * to request vbus irq, assuming always on.
+	 */
+	if (gpio_is_valid(udc->vbus_pin)) {
+		usba_stop(udc);
+		enable_irq_wake(gpio_to_irq(udc->vbus_pin));
+	}
+
+out:
+	mutex_unlock(&udc->vbus_mutex);
+	return 0;
+}
+
+static int usba_udc_resume(struct device *dev)
+{
+	struct usba_udc *udc = dev_get_drvdata(dev);
+
+	/* Not started */
+	if (!udc->driver)
+		return 0;
+
+	if (device_may_wakeup(dev) && gpio_is_valid(udc->vbus_pin))
+		disable_irq_wake(gpio_to_irq(udc->vbus_pin));
+
+	/* If Vbus is present, enable the controller and wait for reset */
+	mutex_lock(&udc->vbus_mutex);
+	udc->vbus_prev = vbus_is_present(udc);
+	if (udc->vbus_prev)
+		usba_start(udc);
+	mutex_unlock(&udc->vbus_mutex);
+
+	return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(usba_udc_pm_ops, usba_udc_suspend, usba_udc_resume);
+
 static struct platform_driver udc_driver = {
 	.remove		= __exit_p(usba_udc_remove),
 	.driver		= {
 		.name		= "atmel_usba_udc",
+		.pm		= &usba_udc_pm_ops,
 		.of_match_table	= of_match_ptr(atmel_udc_dt_ids),
 	},
 };
diff --git a/drivers/usb/gadget/udc/atmel_usba_udc.h b/drivers/usb/gadget/udc/atmel_usba_udc.h
index 497cd18..ea448a3 100644
--- a/drivers/usb/gadget/udc/atmel_usba_udc.h
+++ b/drivers/usb/gadget/udc/atmel_usba_udc.h
@@ -191,18 +191,28 @@
 	 | USBA_BF(name, value))
 
 /* Register access macros */
+#ifdef CONFIG_AVR32
+#define usba_io_readl	__raw_readl
+#define usba_io_writel	__raw_writel
+#define usba_io_writew	__raw_writew
+#else
+#define usba_io_readl	readl_relaxed
+#define usba_io_writel	writel_relaxed
+#define usba_io_writew	writew_relaxed
+#endif
+
 #define usba_readl(udc, reg)					\
-	__raw_readl((udc)->regs + USBA_##reg)
+	usba_io_readl((udc)->regs + USBA_##reg)
 #define usba_writel(udc, reg, value)				\
-	__raw_writel((value), (udc)->regs + USBA_##reg)
+	usba_io_writel((value), (udc)->regs + USBA_##reg)
 #define usba_ep_readl(ep, reg)					\
-	__raw_readl((ep)->ep_regs + USBA_EPT_##reg)
+	usba_io_readl((ep)->ep_regs + USBA_EPT_##reg)
 #define usba_ep_writel(ep, reg, value)				\
-	__raw_writel((value), (ep)->ep_regs + USBA_EPT_##reg)
+	usba_io_writel((value), (ep)->ep_regs + USBA_EPT_##reg)
 #define usba_dma_readl(ep, reg)					\
-	__raw_readl((ep)->dma_regs + USBA_DMA_##reg)
+	usba_io_readl((ep)->dma_regs + USBA_DMA_##reg)
 #define usba_dma_writel(ep, reg, value)				\
-	__raw_writel((value), (ep)->dma_regs + USBA_DMA_##reg)
+	usba_io_writel((value), (ep)->dma_regs + USBA_DMA_##reg)
 
 /* Calculate base address for a given endpoint or DMA controller */
 #define USBA_EPT_BASE(x)	(0x100 + (x) * 0x20)
@@ -313,6 +323,9 @@ struct usba_udc {
 	/* Protect hw registers from concurrent modifications */
 	spinlock_t lock;
 
+	/* Mutex to prevent concurrent start or stop */
+	struct mutex vbus_mutex;
+
 	void __iomem *regs;
 	void __iomem *fifo;
 
@@ -328,6 +341,7 @@ struct usba_udc {
 	struct clk *hclk;
 	struct usba_ep *usba_ep;
 	bool bias_pulse_needed;
+	bool clocked;
 
 	u16 devstatus;
 
diff --git a/drivers/usb/gadget/udc/dummy_hcd.c b/drivers/usb/gadget/udc/dummy_hcd.c
index 8dda484..181112c 100644
--- a/drivers/usb/gadget/udc/dummy_hcd.c
+++ b/drivers/usb/gadget/udc/dummy_hcd.c
@@ -1923,7 +1923,7 @@ static inline void
 ss_hub_descriptor(struct usb_hub_descriptor *desc)
 {
 	memset(desc, 0, sizeof *desc);
-	desc->bDescriptorType = 0x2a;
+	desc->bDescriptorType = USB_DT_SS_HUB;
 	desc->bDescLength = 12;
 	desc->wHubCharacteristics = cpu_to_le16(
 			HUB_CHAR_INDV_PORT_LPSM |
@@ -1936,7 +1936,7 @@ ss_hub_descriptor(struct usb_hub_descriptor *desc)
 static inline void hub_descriptor(struct usb_hub_descriptor *desc)
 {
 	memset(desc, 0, sizeof *desc);
-	desc->bDescriptorType = 0x29;
+	desc->bDescriptorType = USB_DT_HUB;
 	desc->bDescLength = 9;
 	desc->wHubCharacteristics = cpu_to_le16(
 			HUB_CHAR_INDV_PORT_LPSM |
@@ -2631,7 +2631,7 @@ static int __init init(void)
 		return -EINVAL;
 
 	if (mod_data.num < 1 || mod_data.num > MAX_NUM_UDC) {
-		pr_err("Number of emulated UDC must be in range of 1…%d\n",
+		pr_err("Number of emulated UDC must be in range of 1...%d\n",
 				MAX_NUM_UDC);
 		return -EINVAL;
 	}
diff --git a/drivers/usb/gadget/udc/goku_udc.c b/drivers/usb/gadget/udc/goku_udc.c
index 5b9176e..9e8d842 100644
--- a/drivers/usb/gadget/udc/goku_udc.c
+++ b/drivers/usb/gadget/udc/goku_udc.c
@@ -1024,35 +1024,79 @@ static const char proc_node_name [] = "driver/udc";
 static void dump_intmask(struct seq_file *m, const char *label, u32 mask)
 {
 	/* int_status is the same format ... */
-	seq_printf(m,
-		"%s %05X =" FOURBITS EIGHTBITS EIGHTBITS "\n",
-		label, mask,
-		(mask & INT_PWRDETECT) ? " power" : "",
-		(mask & INT_SYSERROR) ? " sys" : "",
-		(mask & INT_MSTRDEND) ? " in-dma" : "",
-		(mask & INT_MSTWRTMOUT) ? " wrtmo" : "",
-
-		(mask & INT_MSTWREND) ? " out-dma" : "",
-		(mask & INT_MSTWRSET) ? " wrset" : "",
-		(mask & INT_ERR) ? " err" : "",
-		(mask & INT_SOF) ? " sof" : "",
-
-		(mask & INT_EP3NAK) ? " ep3nak" : "",
-		(mask & INT_EP2NAK) ? " ep2nak" : "",
-		(mask & INT_EP1NAK) ? " ep1nak" : "",
-		(mask & INT_EP3DATASET) ? " ep3" : "",
-
-		(mask & INT_EP2DATASET) ? " ep2" : "",
-		(mask & INT_EP1DATASET) ? " ep1" : "",
-		(mask & INT_STATUSNAK) ? " ep0snak" : "",
-		(mask & INT_STATUS) ? " ep0status" : "",
-
-		(mask & INT_SETUP) ? " setup" : "",
-		(mask & INT_ENDPOINT0) ? " ep0" : "",
-		(mask & INT_USBRESET) ? " reset" : "",
-		(mask & INT_SUSPEND) ? " suspend" : "");
+	seq_printf(m, "%s %05X =" FOURBITS EIGHTBITS EIGHTBITS "\n",
+		   label, mask,
+		   (mask & INT_PWRDETECT) ? " power" : "",
+		   (mask & INT_SYSERROR) ? " sys" : "",
+		   (mask & INT_MSTRDEND) ? " in-dma" : "",
+		   (mask & INT_MSTWRTMOUT) ? " wrtmo" : "",
+
+		   (mask & INT_MSTWREND) ? " out-dma" : "",
+		   (mask & INT_MSTWRSET) ? " wrset" : "",
+		   (mask & INT_ERR) ? " err" : "",
+		   (mask & INT_SOF) ? " sof" : "",
+
+		   (mask & INT_EP3NAK) ? " ep3nak" : "",
+		   (mask & INT_EP2NAK) ? " ep2nak" : "",
+		   (mask & INT_EP1NAK) ? " ep1nak" : "",
+		   (mask & INT_EP3DATASET) ? " ep3" : "",
+
+		   (mask & INT_EP2DATASET) ? " ep2" : "",
+		   (mask & INT_EP1DATASET) ? " ep1" : "",
+		   (mask & INT_STATUSNAK) ? " ep0snak" : "",
+		   (mask & INT_STATUS) ? " ep0status" : "",
+
+		   (mask & INT_SETUP) ? " setup" : "",
+		   (mask & INT_ENDPOINT0) ? " ep0" : "",
+		   (mask & INT_USBRESET) ? " reset" : "",
+		   (mask & INT_SUSPEND) ? " suspend" : "");
+}
+
+static const char *udc_ep_state(enum ep0state state)
+{
+	switch (state) {
+	case EP0_DISCONNECT:
+		return "ep0_disconnect";
+	case EP0_IDLE:
+		return "ep0_idle";
+	case EP0_IN:
+		return "ep0_in";
+	case EP0_OUT:
+		return "ep0_out";
+	case EP0_STATUS:
+		return "ep0_status";
+	case EP0_STALL:
+		return "ep0_stall";
+	case EP0_SUSPEND:
+		return "ep0_suspend";
+	}
+
+	return "ep0_?";
 }
 
+static const char *udc_ep_status(u32 status)
+{
+	switch (status & EPxSTATUS_EP_MASK) {
+	case EPxSTATUS_EP_READY:
+		return "ready";
+	case EPxSTATUS_EP_DATAIN:
+		return "packet";
+	case EPxSTATUS_EP_FULL:
+		return "full";
+	case EPxSTATUS_EP_TX_ERR:	/* host will retry */
+		return "tx_err";
+	case EPxSTATUS_EP_RX_ERR:
+		return "rx_err";
+	case EPxSTATUS_EP_BUSY:		/* ep0 only */
+		return "busy";
+	case EPxSTATUS_EP_STALL:
+		return "stall";
+	case EPxSTATUS_EP_INVALID:	/* these "can't happen" */
+		return "invalid";
+	}
+
+	return "?";
+}
 
 static int udc_proc_read(struct seq_file *m, void *v)
 {
@@ -1068,29 +1112,18 @@ static int udc_proc_read(struct seq_file *m, void *v)
 	tmp = readl(&regs->power_detect);
 	is_usb_connected = tmp & PW_DETECT;
 	seq_printf(m,
-		"%s - %s\n"
-		"%s version: %s %s\n"
-		"Gadget driver: %s\n"
-		"Host %s, %s\n"
-		"\n",
-		pci_name(dev->pdev), driver_desc,
-		driver_name, DRIVER_VERSION, dmastr(),
-		dev->driver ? dev->driver->driver.name : "(none)",
-		is_usb_connected
-			? ((tmp & PW_PULLUP) ? "full speed" : "powered")
-			: "disconnected",
-		({const char *state;
-		switch(dev->ep0state){
-		case EP0_DISCONNECT:	state = "ep0_disconnect"; break;
-		case EP0_IDLE:		state = "ep0_idle"; break;
-		case EP0_IN:		state = "ep0_in"; break;
-		case EP0_OUT:		state = "ep0_out"; break;
-		case EP0_STATUS:	state = "ep0_status"; break;
-		case EP0_STALL:		state = "ep0_stall"; break;
-		case EP0_SUSPEND:	state = "ep0_suspend"; break;
-		default:		state = "ep0_?"; break;
-		} state; })
-		);
+		   "%s - %s\n"
+		   "%s version: %s %s\n"
+		   "Gadget driver: %s\n"
+		   "Host %s, %s\n"
+		   "\n",
+		   pci_name(dev->pdev), driver_desc,
+		   driver_name, DRIVER_VERSION, dmastr(),
+		   dev->driver ? dev->driver->driver.name : "(none)",
+		   is_usb_connected
+			   ? ((tmp & PW_PULLUP) ? "full speed" : "powered")
+			   : "disconnected",
+		   udc_ep_state(dev->ep0state));
 
 	dump_intmask(m, "int_status", readl(&regs->int_status));
 	dump_intmask(m, "int_enable", readl(&regs->int_enable));
@@ -1099,31 +1132,30 @@ static int udc_proc_read(struct seq_file *m, void *v)
 		goto done;
 
 	/* registers for (active) device and ep0 */
-	if (seq_printf(m, "\nirqs %lu\ndataset %02x "
-			"single.bcs %02x.%02x state %x addr %u\n",
-			dev->irqs, readl(&regs->DataSet),
-			readl(&regs->EPxSingle), readl(&regs->EPxBCS),
-			readl(&regs->UsbState),
-			readl(&regs->address)) < 0)
+	seq_printf(m, "\nirqs %lu\ndataset %02x single.bcs %02x.%02x state %x addr %u\n",
+		   dev->irqs, readl(&regs->DataSet),
+		   readl(&regs->EPxSingle), readl(&regs->EPxBCS),
+		   readl(&regs->UsbState),
+		   readl(&regs->address));
+	if (seq_has_overflowed(m))
 		goto done;
 
 	tmp = readl(&regs->dma_master);
-	if (seq_printf(m,
-		"dma %03X =" EIGHTBITS "%s %s\n", tmp,
-		(tmp & MST_EOPB_DIS) ? " eopb-" : "",
-		(tmp & MST_EOPB_ENA) ? " eopb+" : "",
-		(tmp & MST_TIMEOUT_DIS) ? " tmo-" : "",
-		(tmp & MST_TIMEOUT_ENA) ? " tmo+" : "",
-
-		(tmp & MST_RD_EOPB) ? " eopb" : "",
-		(tmp & MST_RD_RESET) ? " in_reset" : "",
-		(tmp & MST_WR_RESET) ? " out_reset" : "",
-		(tmp & MST_RD_ENA) ? " IN" : "",
-
-		(tmp & MST_WR_ENA) ? " OUT" : "",
-		(tmp & MST_CONNECTION)
-			? "ep1in/ep2out"
-			: "ep1out/ep2in") < 0)
+	seq_printf(m, "dma %03X =" EIGHTBITS "%s %s\n",
+		   tmp,
+		   (tmp & MST_EOPB_DIS) ? " eopb-" : "",
+		   (tmp & MST_EOPB_ENA) ? " eopb+" : "",
+		   (tmp & MST_TIMEOUT_DIS) ? " tmo-" : "",
+		   (tmp & MST_TIMEOUT_ENA) ? " tmo+" : "",
+
+		   (tmp & MST_RD_EOPB) ? " eopb" : "",
+		   (tmp & MST_RD_RESET) ? " in_reset" : "",
+		   (tmp & MST_WR_RESET) ? " out_reset" : "",
+		   (tmp & MST_RD_ENA) ? " IN" : "",
+
+		   (tmp & MST_WR_ENA) ? " OUT" : "",
+		   (tmp & MST_CONNECTION) ? "ep1in/ep2out" : "ep1out/ep2in");
+	if (seq_has_overflowed(m))
 		goto done;
 
 	/* dump endpoint queues */
@@ -1135,44 +1167,23 @@ static int udc_proc_read(struct seq_file *m, void *v)
 			continue;
 
 		tmp = readl(ep->reg_status);
-		if (seq_printf(m,
-			"%s %s max %u %s, irqs %lu, "
-			"status %02x (%s) " FOURBITS "\n",
-			ep->ep.name,
-			ep->is_in ? "in" : "out",
-			ep->ep.maxpacket,
-			ep->dma ? "dma" : "pio",
-			ep->irqs,
-			tmp, ({ char *s;
-			switch (tmp & EPxSTATUS_EP_MASK) {
-			case EPxSTATUS_EP_READY:
-				s = "ready"; break;
-			case EPxSTATUS_EP_DATAIN:
-				s = "packet"; break;
-			case EPxSTATUS_EP_FULL:
-				s = "full"; break;
-			case EPxSTATUS_EP_TX_ERR:	// host will retry
-				s = "tx_err"; break;
-			case EPxSTATUS_EP_RX_ERR:
-				s = "rx_err"; break;
-			case EPxSTATUS_EP_BUSY:		/* ep0 only */
-				s = "busy"; break;
-			case EPxSTATUS_EP_STALL:
-				s = "stall"; break;
-			case EPxSTATUS_EP_INVALID:	// these "can't happen"
-				s = "invalid"; break;
-			default:
-				s = "?"; break;
-			} s; }),
-			(tmp & EPxSTATUS_TOGGLE) ? "data1" : "data0",
-			(tmp & EPxSTATUS_SUSPEND) ? " suspend" : "",
-			(tmp & EPxSTATUS_FIFO_DISABLE) ? " disable" : "",
-			(tmp & EPxSTATUS_STAGE_ERROR) ? " ep0stat" : ""
-			) < 0)
+		seq_printf(m, "%s %s max %u %s, irqs %lu, status %02x (%s) " FOURBITS "\n",
+			   ep->ep.name,
+			   ep->is_in ? "in" : "out",
+			   ep->ep.maxpacket,
+			   ep->dma ? "dma" : "pio",
+			   ep->irqs,
+			   tmp, udc_ep_status(tmp),
+			   (tmp & EPxSTATUS_TOGGLE) ? "data1" : "data0",
+			   (tmp & EPxSTATUS_SUSPEND) ? " suspend" : "",
+			   (tmp & EPxSTATUS_FIFO_DISABLE) ? " disable" : "",
+			   (tmp & EPxSTATUS_STAGE_ERROR) ? " ep0stat" : "");
+		if (seq_has_overflowed(m))
 			goto done;
 
 		if (list_empty(&ep->queue)) {
-			if (seq_puts(m, "\t(nothing queued)\n") < 0)
+			seq_puts(m, "\t(nothing queued)\n");
+			if (seq_has_overflowed(m))
 				goto done;
 			continue;
 		}
@@ -1187,10 +1198,10 @@ static int udc_proc_read(struct seq_file *m, void *v)
 			} else
 				tmp = req->req.actual;
 
-			if (seq_printf(m,
-				"\treq %p len %u/%u buf %p\n",
-				&req->req, tmp, req->req.length,
-				req->req.buf) < 0)
+			seq_printf(m, "\treq %p len %u/%u buf %p\n",
+				   &req->req, tmp, req->req.length,
+				   req->req.buf);
+			if (seq_has_overflowed(m))
 				goto done;
 		}
 	}
diff --git a/drivers/usb/gadget/udc/lpc32xx_udc.c b/drivers/usb/gadget/udc/lpc32xx_udc.c
index 27fd413..3b6a785 100644
--- a/drivers/usb/gadget/udc/lpc32xx_udc.c
+++ b/drivers/usb/gadget/udc/lpc32xx_udc.c
@@ -1803,23 +1803,14 @@ static int lpc32xx_ep_queue(struct usb_ep *_ep,
 	req = container_of(_req, struct lpc32xx_request, req);
 	ep = container_of(_ep, struct lpc32xx_ep, ep);
 
-	if (!_req || !_req->complete || !_req->buf ||
+	if (!_ep || !_req || !_req->complete || !_req->buf ||
 	    !list_empty(&req->queue))
 		return -EINVAL;
 
 	udc = ep->udc;
 
-	if (!_ep) {
-		dev_dbg(udc->dev, "invalid ep\n");
-		return -EINVAL;
-	}
-
-
-	if ((!udc) || (!udc->driver) ||
-	    (udc->gadget.speed == USB_SPEED_UNKNOWN)) {
-		dev_dbg(udc->dev, "invalid device\n");
-		return -EINVAL;
-	}
+	if (udc->gadget.speed == USB_SPEED_UNKNOWN)
+		return -EPIPE;
 
 	if (ep->lep) {
 		struct lpc32xx_usbd_dd_gad *dd;
diff --git a/drivers/usb/gadget/udc/net2280.c b/drivers/usb/gadget/udc/net2280.c
index d2c0bf6..9871b90 100644
--- a/drivers/usb/gadget/udc/net2280.c
+++ b/drivers/usb/gadget/udc/net2280.c
@@ -80,6 +80,13 @@ static const char *const ep_name[] = {
 	"ep-e", "ep-f", "ep-g", "ep-h",
 };
 
+/* Endpoint names for usb3380 advance mode */
+static const char *const ep_name_adv[] = {
+	ep0name,
+	"ep1in", "ep2out", "ep3in", "ep4out",
+	"ep1out", "ep2in", "ep3out", "ep4in",
+};
+
 /* mode 0 == ep-{a,b,c,d} 1K fifo each
  * mode 1 == ep-{a,b} 2K fifo each, ep-{c,d} unavailable
  * mode 2 == ep-a 2K fifo, ep-{b,c} 1K each, ep-d unavailable
@@ -138,31 +145,44 @@ net2280_enable(struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc)
 	u32			max, tmp;
 	unsigned long		flags;
 	static const u32 ep_key[9] = { 1, 0, 1, 0, 1, 1, 0, 1, 0 };
+	int ret = 0;
 
 	ep = container_of(_ep, struct net2280_ep, ep);
 	if (!_ep || !desc || ep->desc || _ep->name == ep0name ||
-			desc->bDescriptorType != USB_DT_ENDPOINT)
+			desc->bDescriptorType != USB_DT_ENDPOINT) {
+		pr_err("%s: failed at line=%d\n", __func__, __LINE__);
 		return -EINVAL;
+	}
 	dev = ep->dev;
-	if (!dev->driver || dev->gadget.speed == USB_SPEED_UNKNOWN)
-		return -ESHUTDOWN;
+	if (!dev->driver || dev->gadget.speed == USB_SPEED_UNKNOWN) {
+		ret = -ESHUTDOWN;
+		goto print_err;
+	}
 
 	/* erratum 0119 workaround ties up an endpoint number */
-	if ((desc->bEndpointAddress & 0x0f) == EP_DONTUSE)
-		return -EDOM;
+	if ((desc->bEndpointAddress & 0x0f) == EP_DONTUSE) {
+		ret = -EDOM;
+		goto print_err;
+	}
 
 	if (dev->quirks & PLX_SUPERSPEED) {
-		if ((desc->bEndpointAddress & 0x0f) >= 0x0c)
-			return -EDOM;
+		if ((desc->bEndpointAddress & 0x0f) >= 0x0c) {
+			ret = -EDOM;
+			goto print_err;
+		}
 		ep->is_in = !!usb_endpoint_dir_in(desc);
-		if (dev->enhanced_mode && ep->is_in && ep_key[ep->num])
-			return -EINVAL;
+		if (dev->enhanced_mode && ep->is_in && ep_key[ep->num]) {
+			ret = -EINVAL;
+			goto print_err;
+		}
 	}
 
 	/* sanity check ep-e/ep-f since their fifos are small */
 	max = usb_endpoint_maxp(desc) & 0x1fff;
-	if (ep->num > 4 && max > 64 && (dev->quirks & PLX_LEGACY))
-		return -ERANGE;
+	if (ep->num > 4 && max > 64 && (dev->quirks & PLX_LEGACY)) {
+		ret = -ERANGE;
+		goto print_err;
+	}
 
 	spin_lock_irqsave(&dev->lock, flags);
 	_ep->maxpacket = max & 0x7ff;
@@ -192,7 +212,8 @@ net2280_enable(struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc)
 		    (dev->gadget.speed == USB_SPEED_HIGH && max != 512) ||
 		    (dev->gadget.speed == USB_SPEED_FULL && max > 64)) {
 			spin_unlock_irqrestore(&dev->lock, flags);
-			return -ERANGE;
+			ret = -ERANGE;
+			goto print_err;
 		}
 	}
 	ep->is_iso = (tmp == USB_ENDPOINT_XFER_ISOC);
@@ -271,7 +292,11 @@ net2280_enable(struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc)
 
 	/* pci writes may still be posted */
 	spin_unlock_irqrestore(&dev->lock, flags);
-	return 0;
+	return ret;
+
+print_err:
+	dev_err(&ep->dev->pdev->dev, "%s: error=%d\n", __func__, ret);
+	return ret;
 }
 
 static int handshake(u32 __iomem *ptr, u32 mask, u32 done, int usec)
@@ -426,9 +451,10 @@ static int net2280_disable(struct usb_ep *_ep)
 	unsigned long		flags;
 
 	ep = container_of(_ep, struct net2280_ep, ep);
-	if (!_ep || !ep->desc || _ep->name == ep0name)
+	if (!_ep || !ep->desc || _ep->name == ep0name) {
+		pr_err("%s: Invalid ep=%p or ep->desc\n", __func__, _ep);
 		return -EINVAL;
-
+	}
 	spin_lock_irqsave(&ep->dev->lock, flags);
 	nuke(ep);
 
@@ -458,8 +484,10 @@ static struct usb_request
 	struct net2280_ep	*ep;
 	struct net2280_request	*req;
 
-	if (!_ep)
+	if (!_ep) {
+		pr_err("%s: Invalid ep\n", __func__);
 		return NULL;
+	}
 	ep = container_of(_ep, struct net2280_ep, ep);
 
 	req = kzalloc(sizeof(*req), gfp_flags);
@@ -491,8 +519,11 @@ static void net2280_free_request(struct usb_ep *_ep, struct usb_request *_req)
 	struct net2280_request	*req;
 
 	ep = container_of(_ep, struct net2280_ep, ep);
-	if (!_ep || !_req)
+	if (!_ep || !_req) {
+		dev_err(&ep->dev->pdev->dev, "%s: Inavlid ep=%p or req=%p\n",
+							__func__, _ep, _req);
 		return;
+	}
 
 	req = container_of(_req, struct net2280_request, req);
 	WARN_ON(!list_empty(&req->queue));
@@ -896,35 +927,44 @@ net2280_queue(struct usb_ep *_ep, struct usb_request *_req, gfp_t gfp_flags)
 	struct net2280_ep	*ep;
 	struct net2280		*dev;
 	unsigned long		flags;
+	int ret = 0;
 
 	/* we always require a cpu-view buffer, so that we can
 	 * always use pio (as fallback or whatever).
 	 */
-	req = container_of(_req, struct net2280_request, req);
-	if (!_req || !_req->complete || !_req->buf ||
-				!list_empty(&req->queue))
-		return -EINVAL;
-	if (_req->length > (~0 & DMA_BYTE_COUNT_MASK))
-		return -EDOM;
 	ep = container_of(_ep, struct net2280_ep, ep);
-	if (!_ep || (!ep->desc && ep->num != 0))
+	if (!_ep || (!ep->desc && ep->num != 0)) {
+		pr_err("%s: Invalid ep=%p or ep->desc\n", __func__, _ep);
 		return -EINVAL;
+	}
+	req = container_of(_req, struct net2280_request, req);
+	if (!_req || !_req->complete || !_req->buf ||
+				!list_empty(&req->queue)) {
+		ret = -EINVAL;
+		goto print_err;
+	}
+	if (_req->length > (~0 & DMA_BYTE_COUNT_MASK)) {
+		ret = -EDOM;
+		goto print_err;
+	}
 	dev = ep->dev;
-	if (!dev->driver || dev->gadget.speed == USB_SPEED_UNKNOWN)
-		return -ESHUTDOWN;
+	if (!dev->driver || dev->gadget.speed == USB_SPEED_UNKNOWN) {
+		ret = -ESHUTDOWN;
+		goto print_err;
+	}
 
 	/* FIXME implement PIO fallback for ZLPs with DMA */
-	if (ep->dma && _req->length == 0)
-		return -EOPNOTSUPP;
+	if (ep->dma && _req->length == 0) {
+		ret = -EOPNOTSUPP;
+		goto print_err;
+	}
 
 	/* set up dma mapping in case the caller didn't */
 	if (ep->dma) {
-		int ret;
-
 		ret = usb_gadget_map_request(&dev->gadget, _req,
 				ep->is_in);
 		if (ret)
-			return ret;
+			goto print_err;
 	}
 
 	ep_vdbg(dev, "%s queue req %p, len %d buf %p\n",
@@ -1013,7 +1053,11 @@ done:
 	spin_unlock_irqrestore(&dev->lock, flags);
 
 	/* pci writes may still be posted */
-	return 0;
+	return ret;
+
+print_err:
+	dev_err(&ep->dev->pdev->dev, "%s: error=%d\n", __func__, ret);
+	return ret;
 }
 
 static inline void
@@ -1134,8 +1178,11 @@ static int net2280_dequeue(struct usb_ep *_ep, struct usb_request *_req)
 	int			stopped;
 
 	ep = container_of(_ep, struct net2280_ep, ep);
-	if (!_ep || (!ep->desc && ep->num != 0) || !_req)
+	if (!_ep || (!ep->desc && ep->num != 0) || !_req) {
+		pr_err("%s: Invalid ep=%p or ep->desc or req=%p\n",
+						__func__, _ep, _req);
 		return -EINVAL;
+	}
 
 	spin_lock_irqsave(&ep->dev->lock, flags);
 	stopped = ep->stopped;
@@ -1157,6 +1204,8 @@ static int net2280_dequeue(struct usb_ep *_ep, struct usb_request *_req)
 	}
 	if (&req->req != _req) {
 		spin_unlock_irqrestore(&ep->dev->lock, flags);
+		dev_err(&ep->dev->pdev->dev, "%s: Request mismatch\n",
+								__func__);
 		return -EINVAL;
 	}
 
@@ -1214,20 +1263,28 @@ net2280_set_halt_and_wedge(struct usb_ep *_ep, int value, int wedged)
 	int			retval = 0;
 
 	ep = container_of(_ep, struct net2280_ep, ep);
-	if (!_ep || (!ep->desc && ep->num != 0))
+	if (!_ep || (!ep->desc && ep->num != 0)) {
+		pr_err("%s: Invalid ep=%p or ep->desc\n", __func__, _ep);
 		return -EINVAL;
-	if (!ep->dev->driver || ep->dev->gadget.speed == USB_SPEED_UNKNOWN)
-		return -ESHUTDOWN;
+	}
+	if (!ep->dev->driver || ep->dev->gadget.speed == USB_SPEED_UNKNOWN) {
+		retval = -ESHUTDOWN;
+		goto print_err;
+	}
 	if (ep->desc /* not ep0 */ && (ep->desc->bmAttributes & 0x03)
-						== USB_ENDPOINT_XFER_ISOC)
-		return -EINVAL;
+						== USB_ENDPOINT_XFER_ISOC) {
+		retval = -EINVAL;
+		goto print_err;
+	}
 
 	spin_lock_irqsave(&ep->dev->lock, flags);
-	if (!list_empty(&ep->queue))
+	if (!list_empty(&ep->queue)) {
 		retval = -EAGAIN;
-	else if (ep->is_in && value && net2280_fifo_status(_ep) != 0)
+		goto print_unlock;
+	} else if (ep->is_in && value && net2280_fifo_status(_ep) != 0) {
 		retval = -EAGAIN;
-	else {
+		goto print_unlock;
+	} else {
 		ep_vdbg(ep->dev, "%s %s %s\n", _ep->name,
 				value ? "set" : "clear",
 				wedged ? "wedge" : "halt");
@@ -1251,6 +1308,12 @@ net2280_set_halt_and_wedge(struct usb_ep *_ep, int value, int wedged)
 	spin_unlock_irqrestore(&ep->dev->lock, flags);
 
 	return retval;
+
+print_unlock:
+	spin_unlock_irqrestore(&ep->dev->lock, flags);
+print_err:
+	dev_err(&ep->dev->pdev->dev, "%s: error=%d\n", __func__, retval);
+	return retval;
 }
 
 static int net2280_set_halt(struct usb_ep *_ep, int value)
@@ -1260,8 +1323,10 @@ static int net2280_set_halt(struct usb_ep *_ep, int value)
 
 static int net2280_set_wedge(struct usb_ep *_ep)
 {
-	if (!_ep || _ep->name == ep0name)
+	if (!_ep || _ep->name == ep0name) {
+		pr_err("%s: Invalid ep=%p or ep0\n", __func__, _ep);
 		return -EINVAL;
+	}
 	return net2280_set_halt_and_wedge(_ep, 1, 1);
 }
 
@@ -1271,14 +1336,22 @@ static int net2280_fifo_status(struct usb_ep *_ep)
 	u32			avail;
 
 	ep = container_of(_ep, struct net2280_ep, ep);
-	if (!_ep || (!ep->desc && ep->num != 0))
+	if (!_ep || (!ep->desc && ep->num != 0)) {
+		pr_err("%s: Invalid ep=%p or ep->desc\n", __func__, _ep);
 		return -ENODEV;
-	if (!ep->dev->driver || ep->dev->gadget.speed == USB_SPEED_UNKNOWN)
+	}
+	if (!ep->dev->driver || ep->dev->gadget.speed == USB_SPEED_UNKNOWN) {
+		dev_err(&ep->dev->pdev->dev,
+			"%s: Invalid driver=%p or speed=%d\n",
+			__func__, ep->dev->driver, ep->dev->gadget.speed);
 		return -ESHUTDOWN;
+	}
 
 	avail = readl(&ep->regs->ep_avail) & (BIT(12) - 1);
-	if (avail > ep->fifo_size)
+	if (avail > ep->fifo_size) {
+		dev_err(&ep->dev->pdev->dev, "%s: Fifo overflow\n", __func__);
 		return -EOVERFLOW;
+	}
 	if (ep->is_in)
 		avail = ep->fifo_size - avail;
 	return avail;
@@ -1289,10 +1362,16 @@ static void net2280_fifo_flush(struct usb_ep *_ep)
 	struct net2280_ep	*ep;
 
 	ep = container_of(_ep, struct net2280_ep, ep);
-	if (!_ep || (!ep->desc && ep->num != 0))
+	if (!_ep || (!ep->desc && ep->num != 0)) {
+		pr_err("%s: Invalid ep=%p or ep->desc\n", __func__, _ep);
 		return;
-	if (!ep->dev->driver || ep->dev->gadget.speed == USB_SPEED_UNKNOWN)
+	}
+	if (!ep->dev->driver || ep->dev->gadget.speed == USB_SPEED_UNKNOWN) {
+		dev_err(&ep->dev->pdev->dev,
+			"%s: Invalid driver=%p or speed=%d\n",
+			__func__, ep->dev->driver, ep->dev->gadget.speed);
 		return;
+	}
 
 	writel(BIT(FIFO_FLUSH), &ep->regs->ep_stat);
 	(void) readl(&ep->regs->ep_rsp);
@@ -1977,7 +2056,7 @@ static void usb_reinit_338x(struct net2280 *dev)
 	for (i = 0; i < dev->n_ep; i++) {
 		struct net2280_ep *ep = &dev->ep[i];
 
-		ep->ep.name = ep_name[i];
+		ep->ep.name = dev->enhanced_mode ? ep_name_adv[i] : ep_name[i];
 		ep->dev = dev;
 		ep->num = i;
 
@@ -1989,11 +2068,9 @@ static void usb_reinit_338x(struct net2280 *dev)
 			ep->regs = (struct net2280_ep_regs __iomem *)
 				(((void __iomem *)&dev->epregs[ne[i]]) +
 				ep_reg_addr[i]);
-			ep->fiforegs = &dev->fiforegs[i];
 		} else {
 			ep->cfg = &dev->epregs[i];
 			ep->regs = &dev->epregs[i];
-			ep->fiforegs = &dev->fiforegs[i];
 		}
 
 		ep->fifo_size = (i != 0) ? 2048 : 512;
@@ -2186,7 +2263,6 @@ static int net2280_start(struct usb_gadget *_gadget,
 		dev->ep[i].irqs = 0;
 
 	/* hook up the driver ... */
-	dev->softconnect = 1;
 	driver->driver.bus = NULL;
 	dev->driver = driver;
 
@@ -3052,6 +3128,8 @@ next_endpoints:
 		BIT(PCI_RETRY_ABORT_INTERRUPT))
 
 static void handle_stat1_irqs(struct net2280 *dev, u32 stat)
+__releases(dev->lock)
+__acquires(dev->lock)
 {
 	struct net2280_ep	*ep;
 	u32			tmp, num, mask, scratch;
@@ -3373,8 +3451,6 @@ static int net2280_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 		u32 usbstat;
 		dev->usb_ext = (struct usb338x_usb_ext_regs __iomem *)
 							(base + 0x00b4);
-		dev->fiforegs = (struct usb338x_fifo_regs __iomem *)
-							(base + 0x0500);
 		dev->llregs = (struct usb338x_ll_regs __iomem *)
 							(base + 0x0700);
 		dev->ll_lfps_regs = (struct usb338x_ll_lfps_regs __iomem *)
diff --git a/drivers/usb/gadget/udc/net2280.h b/drivers/usb/gadget/udc/net2280.h
index ac8d5a2..4dff60d 100644
--- a/drivers/usb/gadget/udc/net2280.h
+++ b/drivers/usb/gadget/udc/net2280.h
@@ -96,7 +96,6 @@ struct net2280_ep {
 	struct net2280_ep_regs			__iomem *regs;
 	struct net2280_dma_regs			__iomem *dma;
 	struct net2280_dma			*dummy;
-	struct usb338x_fifo_regs __iomem *fiforegs;
 	dma_addr_t				td_dma;	/* of dummy */
 	struct net2280				*dev;
 	unsigned long				irqs;
@@ -181,7 +180,6 @@ struct net2280 {
 	struct net2280_dma_regs		__iomem *dma;
 	struct net2280_dep_regs		__iomem *dep;
 	struct net2280_ep_regs		__iomem *epregs;
-	struct usb338x_fifo_regs	__iomem *fiforegs;
 	struct usb338x_ll_regs		__iomem *llregs;
 	struct usb338x_ll_lfps_regs	__iomem *ll_lfps_regs;
 	struct usb338x_ll_tsn_regs	__iomem *ll_tsn_regs;
diff --git a/drivers/usb/gadget/udc/pxa27x_udc.c b/drivers/usb/gadget/udc/pxa27x_udc.c
index 6a855fc..b51226a 100644
--- a/drivers/usb/gadget/udc/pxa27x_udc.c
+++ b/drivers/usb/gadget/udc/pxa27x_udc.c
@@ -93,50 +93,46 @@ static void handle_ep(struct pxa_ep *ep);
 static int state_dbg_show(struct seq_file *s, void *p)
 {
 	struct pxa_udc *udc = s->private;
-	int pos = 0, ret;
 	u32 tmp;
 
-	ret = -ENODEV;
 	if (!udc->driver)
-		goto out;
+		return -ENODEV;
 
 	/* basic device status */
-	pos += seq_printf(s, DRIVER_DESC "\n"
-			 "%s version: %s\nGadget driver: %s\n",
-			 driver_name, DRIVER_VERSION,
-			 udc->driver ? udc->driver->driver.name : "(none)");
+	seq_printf(s, DRIVER_DESC "\n"
+		   "%s version: %s\n"
+		   "Gadget driver: %s\n",
+		   driver_name, DRIVER_VERSION,
+		   udc->driver ? udc->driver->driver.name : "(none)");
 
 	tmp = udc_readl(udc, UDCCR);
-	pos += seq_printf(s,
-			 "udccr=0x%0x(%s%s%s%s%s%s%s%s%s%s), "
-			 "con=%d,inter=%d,altinter=%d\n", tmp,
-			 (tmp & UDCCR_OEN) ? " oen":"",
-			 (tmp & UDCCR_AALTHNP) ? " aalthnp":"",
-			 (tmp & UDCCR_AHNP) ? " rem" : "",
-			 (tmp & UDCCR_BHNP) ? " rstir" : "",
-			 (tmp & UDCCR_DWRE) ? " dwre" : "",
-			 (tmp & UDCCR_SMAC) ? " smac" : "",
-			 (tmp & UDCCR_EMCE) ? " emce" : "",
-			 (tmp & UDCCR_UDR) ? " udr" : "",
-			 (tmp & UDCCR_UDA) ? " uda" : "",
-			 (tmp & UDCCR_UDE) ? " ude" : "",
-			 (tmp & UDCCR_ACN) >> UDCCR_ACN_S,
-			 (tmp & UDCCR_AIN) >> UDCCR_AIN_S,
-			 (tmp & UDCCR_AAISN) >> UDCCR_AAISN_S);
+	seq_printf(s,
+		   "udccr=0x%0x(%s%s%s%s%s%s%s%s%s%s), con=%d,inter=%d,altinter=%d\n",
+		   tmp,
+		   (tmp & UDCCR_OEN) ? " oen":"",
+		   (tmp & UDCCR_AALTHNP) ? " aalthnp":"",
+		   (tmp & UDCCR_AHNP) ? " rem" : "",
+		   (tmp & UDCCR_BHNP) ? " rstir" : "",
+		   (tmp & UDCCR_DWRE) ? " dwre" : "",
+		   (tmp & UDCCR_SMAC) ? " smac" : "",
+		   (tmp & UDCCR_EMCE) ? " emce" : "",
+		   (tmp & UDCCR_UDR) ? " udr" : "",
+		   (tmp & UDCCR_UDA) ? " uda" : "",
+		   (tmp & UDCCR_UDE) ? " ude" : "",
+		   (tmp & UDCCR_ACN) >> UDCCR_ACN_S,
+		   (tmp & UDCCR_AIN) >> UDCCR_AIN_S,
+		   (tmp & UDCCR_AAISN) >> UDCCR_AAISN_S);
 	/* registers for device and ep0 */
-	pos += seq_printf(s, "udcicr0=0x%08x udcicr1=0x%08x\n",
-			udc_readl(udc, UDCICR0), udc_readl(udc, UDCICR1));
-	pos += seq_printf(s, "udcisr0=0x%08x udcisr1=0x%08x\n",
-			udc_readl(udc, UDCISR0), udc_readl(udc, UDCISR1));
-	pos += seq_printf(s, "udcfnr=%d\n", udc_readl(udc, UDCFNR));
-	pos += seq_printf(s, "irqs: reset=%lu, suspend=%lu, resume=%lu, "
-			"reconfig=%lu\n",
-			udc->stats.irqs_reset, udc->stats.irqs_suspend,
-			udc->stats.irqs_resume, udc->stats.irqs_reconfig);
-
-	ret = 0;
-out:
-	return ret;
+	seq_printf(s, "udcicr0=0x%08x udcicr1=0x%08x\n",
+		   udc_readl(udc, UDCICR0), udc_readl(udc, UDCICR1));
+	seq_printf(s, "udcisr0=0x%08x udcisr1=0x%08x\n",
+		   udc_readl(udc, UDCISR0), udc_readl(udc, UDCISR1));
+	seq_printf(s, "udcfnr=%d\n", udc_readl(udc, UDCFNR));
+	seq_printf(s, "irqs: reset=%lu, suspend=%lu, resume=%lu, reconfig=%lu\n",
+		   udc->stats.irqs_reset, udc->stats.irqs_suspend,
+		   udc->stats.irqs_resume, udc->stats.irqs_reconfig);
+
+	return 0;
 }
 
 static int queues_dbg_show(struct seq_file *s, void *p)
@@ -144,75 +140,67 @@ static int queues_dbg_show(struct seq_file *s, void *p)
 	struct pxa_udc *udc = s->private;
 	struct pxa_ep *ep;
 	struct pxa27x_request *req;
-	int pos = 0, i, maxpkt, ret;
+	int i, maxpkt;
 
-	ret = -ENODEV;
 	if (!udc->driver)
-		goto out;
+		return -ENODEV;
 
 	/* dump endpoint queues */
 	for (i = 0; i < NR_PXA_ENDPOINTS; i++) {
 		ep = &udc->pxa_ep[i];
 		maxpkt = ep->fifo_size;
-		pos += seq_printf(s,  "%-12s max_pkt=%d %s\n",
-				EPNAME(ep), maxpkt, "pio");
+		seq_printf(s,  "%-12s max_pkt=%d %s\n",
+			   EPNAME(ep), maxpkt, "pio");
 
 		if (list_empty(&ep->queue)) {
-			pos += seq_printf(s, "\t(nothing queued)\n");
+			seq_puts(s, "\t(nothing queued)\n");
 			continue;
 		}
 
 		list_for_each_entry(req, &ep->queue, queue) {
-			pos += seq_printf(s,  "\treq %p len %d/%d buf %p\n",
-					&req->req, req->req.actual,
-					req->req.length, req->req.buf);
+			seq_printf(s,  "\treq %p len %d/%d buf %p\n",
+				   &req->req, req->req.actual,
+				   req->req.length, req->req.buf);
 		}
 	}
 
-	ret = 0;
-out:
-	return ret;
+	return 0;
 }
 
 static int eps_dbg_show(struct seq_file *s, void *p)
 {
 	struct pxa_udc *udc = s->private;
 	struct pxa_ep *ep;
-	int pos = 0, i, ret;
+	int i;
 	u32 tmp;
 
-	ret = -ENODEV;
 	if (!udc->driver)
-		goto out;
+		return -ENODEV;
 
 	ep = &udc->pxa_ep[0];
 	tmp = udc_ep_readl(ep, UDCCSR);
-	pos += seq_printf(s, "udccsr0=0x%03x(%s%s%s%s%s%s%s)\n", tmp,
-			 (tmp & UDCCSR0_SA) ? " sa" : "",
-			 (tmp & UDCCSR0_RNE) ? " rne" : "",
-			 (tmp & UDCCSR0_FST) ? " fst" : "",
-			 (tmp & UDCCSR0_SST) ? " sst" : "",
-			 (tmp & UDCCSR0_DME) ? " dme" : "",
-			 (tmp & UDCCSR0_IPR) ? " ipr" : "",
-			 (tmp & UDCCSR0_OPC) ? " opc" : "");
+	seq_printf(s, "udccsr0=0x%03x(%s%s%s%s%s%s%s)\n",
+		   tmp,
+		   (tmp & UDCCSR0_SA) ? " sa" : "",
+		   (tmp & UDCCSR0_RNE) ? " rne" : "",
+		   (tmp & UDCCSR0_FST) ? " fst" : "",
+		   (tmp & UDCCSR0_SST) ? " sst" : "",
+		   (tmp & UDCCSR0_DME) ? " dme" : "",
+		   (tmp & UDCCSR0_IPR) ? " ipr" : "",
+		   (tmp & UDCCSR0_OPC) ? " opc" : "");
 	for (i = 0; i < NR_PXA_ENDPOINTS; i++) {
 		ep = &udc->pxa_ep[i];
 		tmp = i? udc_ep_readl(ep, UDCCR) : udc_readl(udc, UDCCR);
-		pos += seq_printf(s, "%-12s: "
-				"IN %lu(%lu reqs), OUT %lu(%lu reqs), "
-				"irqs=%lu, udccr=0x%08x, udccsr=0x%03x, "
-				"udcbcr=%d\n",
-				EPNAME(ep),
-				ep->stats.in_bytes, ep->stats.in_ops,
-				ep->stats.out_bytes, ep->stats.out_ops,
-				ep->stats.irqs,
-				tmp, udc_ep_readl(ep, UDCCSR),
-				udc_ep_readl(ep, UDCBCR));
+		seq_printf(s, "%-12s: IN %lu(%lu reqs), OUT %lu(%lu reqs), irqs=%lu, udccr=0x%08x, udccsr=0x%03x, udcbcr=%d\n",
+			   EPNAME(ep),
+			   ep->stats.in_bytes, ep->stats.in_ops,
+			   ep->stats.out_bytes, ep->stats.out_ops,
+			   ep->stats.irqs,
+			   tmp, udc_ep_readl(ep, UDCCSR),
+			   udc_ep_readl(ep, UDCBCR));
 	}
 
-	ret = 0;
-out:
-	return ret;
+	return 0;
 }
 
 static int eps_dbg_open(struct inode *inode, struct file *file)
@@ -2399,7 +2387,7 @@ static struct pxa_udc memory = {
 };
 
 #if defined(CONFIG_OF)
-static struct of_device_id udc_pxa_dt_ids[] = {
+static const struct of_device_id udc_pxa_dt_ids[] = {
 	{ .compatible = "marvell,pxa270-udc" },
 	{}
 };
diff --git a/drivers/usb/gadget/udc/udc-core.c b/drivers/usb/gadget/udc/udc-core.c
index 5a81cb0..d69c355 100644
--- a/drivers/usb/gadget/udc/udc-core.c
+++ b/drivers/usb/gadget/udc/udc-core.c
@@ -35,6 +35,8 @@
  * @dev - the child device to the actual controller
  * @gadget - the gadget. For use by the class code
  * @list - for use by the udc class driver
+ * @vbus - for udcs who care about vbus status, this value is real vbus status;
+ * for udcs who do not care about vbus status, this value is always true
  *
  * This represents the internal data structure which is used by the UDC-class
  * to hold information about udc driver and gadget together.
@@ -44,6 +46,7 @@ struct usb_udc {
 	struct usb_gadget		*gadget;
 	struct device			dev;
 	struct list_head		list;
+	bool				vbus;
 };
 
 static struct class *udc_class;
@@ -128,21 +131,11 @@ EXPORT_SYMBOL_GPL(usb_gadget_giveback_request);
 
 static void usb_gadget_state_work(struct work_struct *work)
 {
-	struct usb_gadget	*gadget = work_to_gadget(work);
-	struct usb_udc		*udc = NULL;
-
-	mutex_lock(&udc_lock);
-	list_for_each_entry(udc, &udc_list, list)
-		if (udc->gadget == gadget)
-			goto found;
-	mutex_unlock(&udc_lock);
-
-	return;
-
-found:
-	mutex_unlock(&udc_lock);
+	struct usb_gadget *gadget = work_to_gadget(work);
+	struct usb_udc *udc = gadget->udc;
 
-	sysfs_notify(&udc->dev.kobj, NULL, "state");
+	if (udc)
+		sysfs_notify(&udc->dev.kobj, NULL, "state");
 }
 
 void usb_gadget_set_state(struct usb_gadget *gadget,
@@ -155,6 +148,34 @@ EXPORT_SYMBOL_GPL(usb_gadget_set_state);
 
 /* ------------------------------------------------------------------------- */
 
+static void usb_udc_connect_control(struct usb_udc *udc)
+{
+	if (udc->vbus)
+		usb_gadget_connect(udc->gadget);
+	else
+		usb_gadget_disconnect(udc->gadget);
+}
+
+/**
+ * usb_udc_vbus_handler - updates the udc core vbus status, and try to
+ * connect or disconnect gadget
+ * @gadget: The gadget which vbus change occurs
+ * @status: The vbus status
+ *
+ * The udc driver calls it when it wants to connect or disconnect gadget
+ * according to vbus status.
+ */
+void usb_udc_vbus_handler(struct usb_gadget *gadget, bool status)
+{
+	struct usb_udc *udc = gadget->udc;
+
+	if (udc) {
+		udc->vbus = status;
+		usb_udc_connect_control(udc);
+	}
+}
+EXPORT_SYMBOL_GPL(usb_udc_vbus_handler);
+
 /**
  * usb_gadget_udc_reset - notifies the udc core that bus reset occurs
  * @gadget: The gadget which bus reset occurs
@@ -278,6 +299,7 @@ int usb_add_gadget_udc_release(struct device *parent, struct usb_gadget *gadget,
 		goto err3;
 
 	udc->gadget = gadget;
+	gadget->udc = udc;
 
 	mutex_lock(&udc_lock);
 	list_add_tail(&udc->list, &udc_list);
@@ -287,6 +309,7 @@ int usb_add_gadget_udc_release(struct device *parent, struct usb_gadget *gadget,
 		goto err4;
 
 	usb_gadget_set_state(gadget, USB_STATE_NOTATTACHED);
+	udc->vbus = true;
 
 	mutex_unlock(&udc_lock);
 
@@ -348,21 +371,14 @@ static void usb_gadget_remove_driver(struct usb_udc *udc)
  */
 void usb_del_gadget_udc(struct usb_gadget *gadget)
 {
-	struct usb_udc		*udc = NULL;
+	struct usb_udc *udc = gadget->udc;
 
-	mutex_lock(&udc_lock);
-	list_for_each_entry(udc, &udc_list, list)
-		if (udc->gadget == gadget)
-			goto found;
-
-	dev_err(gadget->dev.parent, "gadget not registered.\n");
-	mutex_unlock(&udc_lock);
-
-	return;
+	if (!udc)
+		return;
 
-found:
 	dev_vdbg(gadget->dev.parent, "unregistering gadget\n");
 
+	mutex_lock(&udc_lock);
 	list_del(&udc->list);
 	mutex_unlock(&udc_lock);
 
@@ -397,7 +413,7 @@ static int udc_bind_to_driver(struct usb_udc *udc, struct usb_gadget_driver *dri
 		driver->unbind(udc->gadget);
 		goto err1;
 	}
-	usb_gadget_connect(udc->gadget);
+	usb_udc_connect_control(udc);
 
 	kobject_uevent(&udc->dev.kobj, KOBJ_CHANGE);
 	return 0;
diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index 5ad60e4..197a6a3 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -198,7 +198,7 @@ config USB_EHCI_HCD_AT91
 
 config USB_EHCI_MSM
 	tristate "Support for Qualcomm QSD/MSM on-chip EHCI USB controller"
-	depends on ARCH_MSM || ARCH_QCOM
+	depends on ARCH_QCOM
 	select USB_EHCI_ROOT_HUB_TT
 	---help---
 	  Enables support for the USB Host controller present on the
diff --git a/drivers/usb/host/ehci-atmel.c b/drivers/usb/host/ehci-atmel.c
index 663f790..be0964a 100644
--- a/drivers/usb/host/ehci-atmel.c
+++ b/drivers/usb/host/ehci-atmel.c
@@ -34,7 +34,6 @@ static const char hcd_name[] = "ehci-atmel";
 
 struct atmel_ehci_priv {
 	struct clk *iclk;
-	struct clk *fclk;
 	struct clk *uclk;
 	bool clocked;
 };
@@ -51,12 +50,9 @@ static void atmel_start_clock(struct atmel_ehci_priv *atmel_ehci)
 {
 	if (atmel_ehci->clocked)
 		return;
-	if (IS_ENABLED(CONFIG_COMMON_CLK)) {
-		clk_set_rate(atmel_ehci->uclk, 48000000);
-		clk_prepare_enable(atmel_ehci->uclk);
-	}
+
+	clk_prepare_enable(atmel_ehci->uclk);
 	clk_prepare_enable(atmel_ehci->iclk);
-	clk_prepare_enable(atmel_ehci->fclk);
 	atmel_ehci->clocked = true;
 }
 
@@ -64,10 +60,9 @@ static void atmel_stop_clock(struct atmel_ehci_priv *atmel_ehci)
 {
 	if (!atmel_ehci->clocked)
 		return;
-	clk_disable_unprepare(atmel_ehci->fclk);
+
 	clk_disable_unprepare(atmel_ehci->iclk);
-	if (IS_ENABLED(CONFIG_COMMON_CLK))
-		clk_disable_unprepare(atmel_ehci->uclk);
+	clk_disable_unprepare(atmel_ehci->uclk);
 	atmel_ehci->clocked = false;
 }
 
@@ -146,20 +141,13 @@ static int ehci_atmel_drv_probe(struct platform_device *pdev)
 		retval = -ENOENT;
 		goto fail_request_resource;
 	}
-	atmel_ehci->fclk = devm_clk_get(&pdev->dev, "uhpck");
-	if (IS_ERR(atmel_ehci->fclk)) {
-		dev_err(&pdev->dev, "Error getting function clock\n");
-		retval = -ENOENT;
+
+	atmel_ehci->uclk = devm_clk_get(&pdev->dev, "usb_clk");
+	if (IS_ERR(atmel_ehci->uclk)) {
+		dev_err(&pdev->dev, "failed to get uclk\n");
+		retval = PTR_ERR(atmel_ehci->uclk);
 		goto fail_request_resource;
 	}
-	if (IS_ENABLED(CONFIG_COMMON_CLK)) {
-		atmel_ehci->uclk = devm_clk_get(&pdev->dev, "usb_clk");
-		if (IS_ERR(atmel_ehci->uclk)) {
-			dev_err(&pdev->dev, "failed to get uclk\n");
-			retval = PTR_ERR(atmel_ehci->uclk);
-			goto fail_request_resource;
-		}
-	}
 
 	ehci = hcd_to_ehci(hcd);
 	/* registers start at offset 0x0 */
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index 85e56d1..f4d88df 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -792,12 +792,12 @@ static irqreturn_t ehci_irq (struct usb_hcd *hcd)
 					ehci->reset_done[i] == 0))
 				continue;
 
-			/* start 20 msec resume signaling from this port,
-			 * and make hub_wq collect PORT_STAT_C_SUSPEND to
-			 * stop that signaling.  Use 5 ms extra for safety,
-			 * like usb_port_resume() does.
+			/* start USB_RESUME_TIMEOUT msec resume signaling from
+			 * this port, and make hub_wq collect
+			 * PORT_STAT_C_SUSPEND to stop that signaling.
 			 */
-			ehci->reset_done[i] = jiffies + msecs_to_jiffies(25);
+			ehci->reset_done[i] = jiffies +
+				msecs_to_jiffies(USB_RESUME_TIMEOUT);
 			set_bit(i, &ehci->resuming_ports);
 			ehci_dbg (ehci, "port %d remote wakeup\n", i + 1);
 			usb_hcd_start_port_resume(&hcd->self, i);
diff --git a/drivers/usb/host/ehci-hub.c b/drivers/usb/host/ehci-hub.c
index 87cf86f..6920844 100644
--- a/drivers/usb/host/ehci-hub.c
+++ b/drivers/usb/host/ehci-hub.c
@@ -471,10 +471,13 @@ static int ehci_bus_resume (struct usb_hcd *hcd)
 		ehci_writel(ehci, temp, &ehci->regs->port_status [i]);
 	}
 
-	/* msleep for 20ms only if code is trying to resume port */
+	/*
+	 * msleep for USB_RESUME_TIMEOUT ms only if code is trying to resume
+	 * port
+	 */
 	if (resume_needed) {
 		spin_unlock_irq(&ehci->lock);
-		msleep(20);
+		msleep(USB_RESUME_TIMEOUT);
 		spin_lock_irq(&ehci->lock);
 		if (ehci->shutdown)
 			goto shutdown;
@@ -688,7 +691,7 @@ ehci_hub_descriptor (
 	int		ports = HCS_N_PORTS (ehci->hcs_params);
 	u16		temp;
 
-	desc->bDescriptorType = 0x29;
+	desc->bDescriptorType = USB_DT_HUB;
 	desc->bPwrOn2PwrGood = 10;	/* ehci 1.0, 2.3.9 says 20ms max */
 	desc->bHubContrCurrent = 0;
 
@@ -942,7 +945,7 @@ int ehci_hub_control(
 			temp &= ~PORT_WAKE_BITS;
 			ehci_writel(ehci, temp | PORT_RESUME, status_reg);
 			ehci->reset_done[wIndex] = jiffies
-					+ msecs_to_jiffies(20);
+					+ msecs_to_jiffies(USB_RESUME_TIMEOUT);
 			set_bit(wIndex, &ehci->resuming_ports);
 			usb_hcd_start_port_resume(&hcd->self, wIndex);
 			break;
diff --git a/drivers/usb/host/ehci-orion.c b/drivers/usb/host/ehci-orion.c
index f6eafec..bfcbb9a 100644
--- a/drivers/usb/host/ehci-orion.c
+++ b/drivers/usb/host/ehci-orion.c
@@ -29,7 +29,13 @@
 #define wrl(off, val)	writel_relaxed((val), hcd->regs + (off))
 
 #define USB_CMD			0x140
+#define   USB_CMD_RUN		BIT(0)
+#define   USB_CMD_RESET		BIT(1)
 #define USB_MODE		0x1a8
+#define   USB_MODE_MASK		GENMASK(1, 0)
+#define   USB_MODE_DEVICE	0x2
+#define   USB_MODE_HOST		0x3
+#define   USB_MODE_SDIS		BIT(4)
 #define USB_CAUSE		0x310
 #define USB_MASK		0x314
 #define USB_WINDOW_CTRL(i)	(0x320 + ((i) << 4))
@@ -69,8 +75,8 @@ static void orion_usb_phy_v1_setup(struct usb_hcd *hcd)
 	/*
 	 * Reset controller
 	 */
-	wrl(USB_CMD, rdl(USB_CMD) | 0x2);
-	while (rdl(USB_CMD) & 0x2);
+	wrl(USB_CMD, rdl(USB_CMD) | USB_CMD_RESET);
+	while (rdl(USB_CMD) & USB_CMD_RESET);
 
 	/*
 	 * GL# USB-10: Set IPG for non start of frame packets
@@ -112,16 +118,16 @@ static void orion_usb_phy_v1_setup(struct usb_hcd *hcd)
 	/*
 	 * Stop and reset controller
 	 */
-	wrl(USB_CMD, rdl(USB_CMD) & ~0x1);
-	wrl(USB_CMD, rdl(USB_CMD) | 0x2);
-	while (rdl(USB_CMD) & 0x2);
+	wrl(USB_CMD, rdl(USB_CMD) & ~USB_CMD_RUN);
+	wrl(USB_CMD, rdl(USB_CMD) | USB_CMD_RESET);
+	while (rdl(USB_CMD) & USB_CMD_RESET);
 
 	/*
 	 * GL# USB-5 Streaming disable REG_USB_MODE[4]=1
 	 * TBD: This need to be done after each reset!
 	 * GL# USB-4 Setup USB Host mode
 	 */
-	wrl(USB_MODE, 0x13);
+	wrl(USB_MODE, USB_MODE_SDIS | USB_MODE_HOST);
 }
 
 static void
diff --git a/drivers/usb/host/fhci-hub.c b/drivers/usb/host/fhci-hub.c
index 70116a6..3bacdd7 100644
--- a/drivers/usb/host/fhci-hub.c
+++ b/drivers/usb/host/fhci-hub.c
@@ -30,7 +30,7 @@
 /* virtual root hub specific descriptor */
 static u8 root_hub_des[] = {
 	0x09, /* blength */
-	0x29, /* bDescriptorType;hub-descriptor */
+	USB_DT_HUB, /* bDescriptorType;hub-descriptor */
 	0x01, /* bNbrPorts */
 	HUB_CHAR_INDV_PORT_LPSM | HUB_CHAR_NO_OCPM, /* wHubCharacteristics */
 	0x00, /* per-port power, no overcurrent */
diff --git a/drivers/usb/host/fotg210-hcd.c b/drivers/usb/host/fotg210-hcd.c
index 475b21f..000ed80 100644
--- a/drivers/usb/host/fotg210-hcd.c
+++ b/drivers/usb/host/fotg210-hcd.c
@@ -1509,7 +1509,7 @@ fotg210_hub_descriptor(
 	int		ports = HCS_N_PORTS(fotg210->hcs_params);
 	u16		temp;
 
-	desc->bDescriptorType = 0x29;
+	desc->bDescriptorType = USB_DT_HUB;
 	desc->bPwrOn2PwrGood = 10;	/* fotg210 1.0, 2.3.9 says 20ms max */
 	desc->bHubContrCurrent = 0;
 
@@ -1595,7 +1595,7 @@ static int fotg210_hub_control(
 			/* resume signaling for 20 msec */
 			fotg210_writel(fotg210, temp | PORT_RESUME, status_reg);
 			fotg210->reset_done[wIndex] = jiffies
-					+ msecs_to_jiffies(20);
+					+ msecs_to_jiffies(USB_RESUME_TIMEOUT);
 			break;
 		case USB_PORT_FEAT_C_SUSPEND:
 			clear_bit(wIndex, &fotg210->port_c_suspend);
diff --git a/drivers/usb/host/fusbh200-hcd.c b/drivers/usb/host/fusbh200-hcd.c
index a83eefe..00e492e 100644
--- a/drivers/usb/host/fusbh200-hcd.c
+++ b/drivers/usb/host/fusbh200-hcd.c
@@ -1467,7 +1467,7 @@ fusbh200_hub_descriptor (
 	int		ports = HCS_N_PORTS (fusbh200->hcs_params);
 	u16		temp;
 
-	desc->bDescriptorType = 0x29;
+	desc->bDescriptorType = USB_DT_HUB;
 	desc->bPwrOn2PwrGood = 10;	/* fusbh200 1.0, 2.3.9 says 20ms max */
 	desc->bHubContrCurrent = 0;
 
@@ -1550,10 +1550,9 @@ static int fusbh200_hub_control (
 			if ((temp & PORT_PE) == 0)
 				goto error;
 
-			/* resume signaling for 20 msec */
 			fusbh200_writel(fusbh200, temp | PORT_RESUME, status_reg);
 			fusbh200->reset_done[wIndex] = jiffies
-					+ msecs_to_jiffies(20);
+					+ msecs_to_jiffies(USB_RESUME_TIMEOUT);
 			break;
 		case USB_PORT_FEAT_C_SUSPEND:
 			clear_bit(wIndex, &fusbh200->port_c_suspend);
diff --git a/drivers/usb/host/imx21-hcd.c b/drivers/usb/host/imx21-hcd.c
index 6a2ad55..f542045 100644
--- a/drivers/usb/host/imx21-hcd.c
+++ b/drivers/usb/host/imx21-hcd.c
@@ -1474,7 +1474,7 @@ static int get_hub_descriptor(struct usb_hcd *hcd,
 			      struct usb_hub_descriptor *desc)
 {
 	struct imx21 *imx21 = hcd_to_imx21(hcd);
-	desc->bDescriptorType = 0x29;	/* HUB descriptor */
+	desc->bDescriptorType = USB_DT_HUB; /* HUB descriptor */
 	desc->bHubContrCurrent = 0;
 
 	desc->bNbrPorts = readl(imx21->regs + USBH_ROOTHUBA)
diff --git a/drivers/usb/host/isp116x-hcd.c b/drivers/usb/host/isp116x-hcd.c
index 113d0cc..13181dc 100644
--- a/drivers/usb/host/isp116x-hcd.c
+++ b/drivers/usb/host/isp116x-hcd.c
@@ -943,7 +943,7 @@ static void isp116x_hub_descriptor(struct isp116x *isp116x,
 {
 	u32 reg = isp116x->rhdesca;
 
-	desc->bDescriptorType = 0x29;
+	desc->bDescriptorType = USB_DT_HUB;
 	desc->bDescLength = 9;
 	desc->bHubContrCurrent = 0;
 	desc->bNbrPorts = (u8) (reg & 0x3);
@@ -1490,7 +1490,7 @@ static int isp116x_bus_resume(struct usb_hcd *hcd)
 	spin_unlock_irq(&isp116x->lock);
 
 	hcd->state = HC_STATE_RESUMING;
-	msleep(20);
+	msleep(USB_RESUME_TIMEOUT);
 
 	/* Go operational */
 	spin_lock_irq(&isp116x->lock);
diff --git a/drivers/usb/host/isp1362-hcd.c b/drivers/usb/host/isp1362-hcd.c
index b32ab60..6cf82ee 100644
--- a/drivers/usb/host/isp1362-hcd.c
+++ b/drivers/usb/host/isp1362-hcd.c
@@ -1538,7 +1538,7 @@ static void isp1362_hub_descriptor(struct isp1362_hcd *isp1362_hcd,
 
 	DBG(3, "%s: enter\n", __func__);
 
-	desc->bDescriptorType = 0x29;
+	desc->bDescriptorType = USB_DT_HUB;
 	desc->bDescLength = 9;
 	desc->bHubContrCurrent = 0;
 	desc->bNbrPorts = reg & 0x3;
diff --git a/drivers/usb/host/max3421-hcd.c b/drivers/usb/host/max3421-hcd.c
index a98833c..fc1fd40 100644
--- a/drivers/usb/host/max3421-hcd.c
+++ b/drivers/usb/host/max3421-hcd.c
@@ -1659,7 +1659,7 @@ hub_descriptor(struct usb_hub_descriptor *desc)
 	/*
 	 * See Table 11-13: Hub Descriptor in USB 2.0 spec.
 	 */
-	desc->bDescriptorType = 0x29;	/* hub descriptor */
+	desc->bDescriptorType = USB_DT_HUB; /* hub descriptor */
 	desc->bDescLength = 9;
 	desc->wHubCharacteristics = cpu_to_le16(HUB_CHAR_INDV_PORT_LPSM |
 						HUB_CHAR_COMMON_OCPM);
diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c
index 7cce85a..15df00c 100644
--- a/drivers/usb/host/ohci-at91.c
+++ b/drivers/usb/host/ohci-at91.c
@@ -39,7 +39,6 @@
 struct ohci_at91_priv {
 	struct clk *iclk;
 	struct clk *fclk;
-	struct clk *uclk;
 	struct clk *hclk;
 	bool clocked;
 	bool wakeup;		/* Saved wake-up state for resume */
@@ -64,10 +63,8 @@ static void at91_start_clock(struct ohci_at91_priv *ohci_at91)
 {
 	if (ohci_at91->clocked)
 		return;
-	if (IS_ENABLED(CONFIG_COMMON_CLK)) {
-		clk_set_rate(ohci_at91->uclk, 48000000);
-		clk_prepare_enable(ohci_at91->uclk);
-	}
+
+	clk_set_rate(ohci_at91->fclk, 48000000);
 	clk_prepare_enable(ohci_at91->hclk);
 	clk_prepare_enable(ohci_at91->iclk);
 	clk_prepare_enable(ohci_at91->fclk);
@@ -78,11 +75,10 @@ static void at91_stop_clock(struct ohci_at91_priv *ohci_at91)
 {
 	if (!ohci_at91->clocked)
 		return;
+
 	clk_disable_unprepare(ohci_at91->fclk);
 	clk_disable_unprepare(ohci_at91->iclk);
 	clk_disable_unprepare(ohci_at91->hclk);
-	if (IS_ENABLED(CONFIG_COMMON_CLK))
-		clk_disable_unprepare(ohci_at91->uclk);
 	ohci_at91->clocked = false;
 }
 
@@ -191,14 +187,6 @@ static int usb_hcd_at91_probe(const struct hc_driver *driver,
 		retval = PTR_ERR(ohci_at91->hclk);
 		goto err;
 	}
-	if (IS_ENABLED(CONFIG_COMMON_CLK)) {
-		ohci_at91->uclk = devm_clk_get(dev, "usb_clk");
-		if (IS_ERR(ohci_at91->uclk)) {
-			dev_err(dev, "failed to get uclk\n");
-			retval = PTR_ERR(ohci_at91->uclk);
-			goto err;
-		}
-	}
 
 	board = hcd->self.controller->platform_data;
 	ohci = hcd_to_ohci(hcd);
diff --git a/drivers/usb/host/ohci-hub.c b/drivers/usb/host/ohci-hub.c
index fe2aedd..ed678c17 100644
--- a/drivers/usb/host/ohci-hub.c
+++ b/drivers/usb/host/ohci-hub.c
@@ -536,7 +536,7 @@ ohci_hub_descriptor (
 	u32		rh = roothub_a (ohci);
 	u16		temp;
 
-	desc->bDescriptorType = 0x29;
+	desc->bDescriptorType = USB_DT_HUB;
 	desc->bPwrOn2PwrGood = (rh & RH_A_POTPGT) >> 24;
 	desc->bHubContrCurrent = 0;
 
diff --git a/drivers/usb/host/oxu210hp-hcd.c b/drivers/usb/host/oxu210hp-hcd.c
index ef7efb2..6352f54 100644
--- a/drivers/usb/host/oxu210hp-hcd.c
+++ b/drivers/usb/host/oxu210hp-hcd.c
@@ -445,7 +445,7 @@ static void ehci_hub_descriptor(struct oxu_hcd *oxu,
 	int ports = HCS_N_PORTS(oxu->hcs_params);
 	u16 temp;
 
-	desc->bDescriptorType = 0x29;
+	desc->bDescriptorType = USB_DT_HUB;
 	desc->bPwrOn2PwrGood = 10;	/* oxu 1.0, 2.3.9 says 20ms max */
 	desc->bHubContrCurrent = 0;
 
@@ -2500,11 +2500,12 @@ static irqreturn_t oxu210_hcd_irq(struct usb_hcd *hcd)
 					|| oxu->reset_done[i] != 0)
 				continue;
 
-			/* start 20 msec resume signaling from this port,
-			 * and make hub_wq collect PORT_STAT_C_SUSPEND to
+			/* start USB_RESUME_TIMEOUT resume signaling from this
+			 * port, and make hub_wq collect PORT_STAT_C_SUSPEND to
 			 * stop that signaling.
 			 */
-			oxu->reset_done[i] = jiffies + msecs_to_jiffies(20);
+			oxu->reset_done[i] = jiffies +
+				msecs_to_jiffies(USB_RESUME_TIMEOUT);
 			oxu_dbg(oxu, "port %d remote wakeup\n", i + 1);
 			mod_timer(&hcd->rh_timer, oxu->reset_done[i]);
 		}
diff --git a/drivers/usb/host/r8a66597-hcd.c b/drivers/usb/host/r8a66597-hcd.c
index bdc82fe..4cbd063 100644
--- a/drivers/usb/host/r8a66597-hcd.c
+++ b/drivers/usb/host/r8a66597-hcd.c
@@ -2136,7 +2136,7 @@ static int r8a66597_hub_status_data(struct usb_hcd *hcd, char *buf)
 static void r8a66597_hub_descriptor(struct r8a66597 *r8a66597,
 				    struct usb_hub_descriptor *desc)
 {
-	desc->bDescriptorType = 0x29;
+	desc->bDescriptorType = USB_DT_HUB;
 	desc->bHubContrCurrent = 0;
 	desc->bNbrPorts = r8a66597->max_root_hub;
 	desc->bDescLength = 9;
@@ -2301,7 +2301,7 @@ static int r8a66597_bus_resume(struct usb_hcd *hcd)
 		rh->port &= ~USB_PORT_STAT_SUSPEND;
 		rh->port |= USB_PORT_STAT_C_SUSPEND << 16;
 		r8a66597_mdfy(r8a66597, RESUME, RESUME | UACT, dvstctr_reg);
-		msleep(50);
+		msleep(USB_RESUME_TIMEOUT);
 		r8a66597_mdfy(r8a66597, UACT, RESUME | UACT, dvstctr_reg);
 	}
 
diff --git a/drivers/usb/host/sl811-hcd.c b/drivers/usb/host/sl811-hcd.c
index 4f4ba1e..fd2a114 100644
--- a/drivers/usb/host/sl811-hcd.c
+++ b/drivers/usb/host/sl811-hcd.c
@@ -1091,7 +1091,7 @@ sl811h_hub_descriptor (
 ) {
 	u16		temp = 0;
 
-	desc->bDescriptorType = 0x29;
+	desc->bDescriptorType = USB_DT_HUB;
 	desc->bHubContrCurrent = 0;
 
 	desc->bNbrPorts = 1;
@@ -1259,7 +1259,7 @@ sl811h_hub_control(
 			sl811_write(sl811, SL11H_CTLREG1, sl811->ctrl1);
 
 			mod_timer(&sl811->timer, jiffies
-					+ msecs_to_jiffies(20));
+					+ msecs_to_jiffies(USB_RESUME_TIMEOUT));
 			break;
 		case USB_PORT_FEAT_POWER:
 			port_power(sl811, 0);
@@ -1809,7 +1809,6 @@ struct platform_driver sl811h_driver = {
 	.resume =	sl811h_resume,
 	.driver = {
 		.name =	(char *) hcd_name,
-		.owner = THIS_MODULE,
 	},
 };
 EXPORT_SYMBOL(sl811h_driver);
diff --git a/drivers/usb/host/u132-hcd.c b/drivers/usb/host/u132-hcd.c
index ad97e8a..d516877 100644
--- a/drivers/usb/host/u132-hcd.c
+++ b/drivers/usb/host/u132-hcd.c
@@ -2584,7 +2584,7 @@ static int u132_roothub_descriptor(struct u132 *u132,
 	retval = u132_read_pcimem(u132, roothub.a, &rh_a);
 	if (retval)
 		return retval;
-	desc->bDescriptorType = 0x29;
+	desc->bDescriptorType = USB_DT_HUB;
 	desc->bPwrOn2PwrGood = (rh_a & RH_A_POTPGT) >> 24;
 	desc->bHubContrCurrent = 0;
 	desc->bNbrPorts = u132->num_ports;
diff --git a/drivers/usb/host/uhci-hub.c b/drivers/usb/host/uhci-hub.c
index 19ba5ea..ece9e37 100644
--- a/drivers/usb/host/uhci-hub.c
+++ b/drivers/usb/host/uhci-hub.c
@@ -15,7 +15,7 @@
 static const __u8 root_hub_hub_des[] =
 {
 	0x09,			/*  __u8  bLength; */
-	0x29,			/*  __u8  bDescriptorType; Hub-descriptor */
+	USB_DT_HUB,		/*  __u8  bDescriptorType; Hub-descriptor */
 	0x02,			/*  __u8  bNbrPorts; */
 	HUB_CHAR_NO_LPSM |	/* __u16  wHubCharacteristics; */
 		HUB_CHAR_INDV_PORT_OCPM, /* (per-port OC, no power switching) */
@@ -166,7 +166,7 @@ static void uhci_check_ports(struct uhci_hcd *uhci)
 				/* Port received a wakeup request */
 				set_bit(port, &uhci->resuming_ports);
 				uhci->ports_timeout = jiffies +
-						msecs_to_jiffies(25);
+					msecs_to_jiffies(USB_RESUME_TIMEOUT);
 				usb_hcd_start_port_resume(
 						&uhci_to_hcd(uhci)->self, port);
 
@@ -338,7 +338,8 @@ static int uhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
 			uhci_finish_suspend(uhci, port, port_addr);
 
 			/* USB v2.0 7.1.7.5 */
-			uhci->ports_timeout = jiffies + msecs_to_jiffies(50);
+			uhci->ports_timeout = jiffies +
+				msecs_to_jiffies(USB_RESUME_TIMEOUT);
 			break;
 		case USB_PORT_FEAT_POWER:
 			/* UHCI has no power switching */
diff --git a/drivers/usb/host/whci/hcd.c b/drivers/usb/host/whci/hcd.c
index d7b363a..43626c4 100644
--- a/drivers/usb/host/whci/hcd.c
+++ b/drivers/usb/host/whci/hcd.c
@@ -313,8 +313,7 @@ error_wusbhc_create:
 	uwb_rc_put(wusbhc->uwb_rc);
 error:
 	whc_clean_up(whc);
-	if (usb_hcd)
-		usb_put_hcd(usb_hcd);
+	usb_put_hcd(usb_hcd);
 	return ret;
 }
 
diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c
index a7865c4..0827d7c 100644
--- a/drivers/usb/host/xhci-hub.c
+++ b/drivers/usb/host/xhci-hub.c
@@ -387,6 +387,10 @@ static void xhci_clear_port_change_bit(struct xhci_hcd *xhci, u16 wValue,
 		status = PORT_PLC;
 		port_change_bit = "link state";
 		break;
+	case USB_PORT_FEAT_C_PORT_CONFIG_ERROR:
+		status = PORT_CEC;
+		port_change_bit = "config error";
+		break;
 	default:
 		/* Should never happen */
 		return;
@@ -588,6 +592,8 @@ static u32 xhci_get_port_status(struct usb_hcd *hcd,
 			status |= USB_PORT_STAT_C_LINK_STATE << 16;
 		if ((raw_port_status & PORT_WRC))
 			status |= USB_PORT_STAT_C_BH_RESET << 16;
+		if ((raw_port_status & PORT_CEC))
+			status |= USB_PORT_STAT_C_CONFIG_ERROR << 16;
 	}
 
 	if (hcd->speed != HCD_USB3) {
@@ -1005,6 +1011,7 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
 		case USB_PORT_FEAT_C_OVER_CURRENT:
 		case USB_PORT_FEAT_C_ENABLE:
 		case USB_PORT_FEAT_C_PORT_LINK_STATE:
+		case USB_PORT_FEAT_C_PORT_CONFIG_ERROR:
 			xhci_clear_port_change_bit(xhci, wValue, wIndex,
 					port_array[wIndex], temp);
 			break;
@@ -1069,7 +1076,7 @@ int xhci_hub_status_data(struct usb_hcd *hcd, char *buf)
 	 */
 	status = bus_state->resuming_ports;
 
-	mask = PORT_CSC | PORT_PEC | PORT_OCC | PORT_PLC | PORT_WRC;
+	mask = PORT_CSC | PORT_PEC | PORT_OCC | PORT_PLC | PORT_WRC | PORT_CEC;
 
 	spin_lock_irqsave(&xhci->lock, flags);
 	/* For each port, did anything change?  If so, set that bit in buf. */
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index 7f76c8a..2af32e2 100644
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -37,6 +37,9 @@
 
 #define PCI_DEVICE_ID_INTEL_LYNXPOINT_XHCI	0x8c31
 #define PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_XHCI	0x9c31
+#define PCI_DEVICE_ID_INTEL_CHERRYVIEW_XHCI		0x22b5
+#define PCI_DEVICE_ID_INTEL_SUNRISEPOINT_H_XHCI		0xa12f
+#define PCI_DEVICE_ID_INTEL_SUNRISEPOINT_LP_XHCI	0x9d2f
 
 static const char hcd_name[] = "xhci_hcd";
 
@@ -112,6 +115,7 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
 	if (pdev->vendor == PCI_VENDOR_ID_INTEL) {
 		xhci->quirks |= XHCI_LPM_SUPPORT;
 		xhci->quirks |= XHCI_INTEL_HOST;
+		xhci->quirks |= XHCI_AVOID_BEI;
 	}
 	if (pdev->vendor == PCI_VENDOR_ID_INTEL &&
 			pdev->device == PCI_DEVICE_ID_INTEL_PANTHERPOINT_XHCI) {
@@ -127,12 +131,17 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
 		 * PPT chipsets.
 		 */
 		xhci->quirks |= XHCI_SPURIOUS_REBOOT;
-		xhci->quirks |= XHCI_AVOID_BEI;
 	}
 	if (pdev->vendor == PCI_VENDOR_ID_INTEL &&
 		pdev->device == PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_XHCI) {
 		xhci->quirks |= XHCI_SPURIOUS_REBOOT;
 	}
+	if (pdev->vendor == PCI_VENDOR_ID_INTEL &&
+		(pdev->device == PCI_DEVICE_ID_INTEL_SUNRISEPOINT_LP_XHCI ||
+		 pdev->device == PCI_DEVICE_ID_INTEL_SUNRISEPOINT_H_XHCI ||
+		 pdev->device == PCI_DEVICE_ID_INTEL_CHERRYVIEW_XHCI)) {
+		xhci->quirks |= XHCI_PME_STUCK_QUIRK;
+	}
 	if (pdev->vendor == PCI_VENDOR_ID_ETRON &&
 			pdev->device == PCI_DEVICE_ID_EJ168) {
 		xhci->quirks |= XHCI_RESET_ON_RESUME;
@@ -159,6 +168,21 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
 				"QUIRK: Resetting on resume");
 }
 
+/*
+ * Make sure PME works on some Intel xHCI controllers by writing 1 to clear
+ * the Internal PME flag bit in vendor specific PMCTRL register at offset 0x80a4
+ */
+static void xhci_pme_quirk(struct xhci_hcd *xhci)
+{
+	u32 val;
+	void __iomem *reg;
+
+	reg = (void __iomem *) xhci->cap_regs + 0x80a4;
+	val = readl(reg);
+	writel(val | BIT(28), reg);
+	readl(reg);
+}
+
 /* called during probe() after chip reset completes */
 static int xhci_pci_setup(struct usb_hcd *hcd)
 {
@@ -283,6 +307,9 @@ static int xhci_pci_suspend(struct usb_hcd *hcd, bool do_wakeup)
 	if (xhci->quirks & XHCI_COMP_MODE_QUIRK)
 		pdev->no_d3cold = true;
 
+	if (xhci->quirks & XHCI_PME_STUCK_QUIRK)
+		xhci_pme_quirk(xhci);
+
 	return xhci_suspend(xhci, do_wakeup);
 }
 
@@ -313,6 +340,9 @@ static int xhci_pci_resume(struct usb_hcd *hcd, bool hibernated)
 	if (pdev->vendor == PCI_VENDOR_ID_INTEL)
 		usb_enable_intel_xhci_ports(pdev);
 
+	if (xhci->quirks & XHCI_PME_STUCK_QUIRK)
+		xhci_pme_quirk(xhci);
+
 	retval = xhci_resume(xhci, hibernated);
 	return retval;
 }
diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c
index 08d402b..783e819 100644
--- a/drivers/usb/host/xhci-plat.c
+++ b/drivers/usb/host/xhci-plat.c
@@ -16,6 +16,7 @@
 #include <linux/module.h>
 #include <linux/of.h>
 #include <linux/platform_device.h>
+#include <linux/usb/phy.h>
 #include <linux/slab.h>
 #include <linux/usb/xhci_pdriver.h>
 
@@ -83,16 +84,6 @@ static int xhci_plat_probe(struct platform_device *pdev)
 	if (irq < 0)
 		return -ENODEV;
 
-
-	if (of_device_is_compatible(pdev->dev.of_node,
-				    "marvell,armada-375-xhci") ||
-	    of_device_is_compatible(pdev->dev.of_node,
-				    "marvell,armada-380-xhci")) {
-		ret = xhci_mvebu_mbus_init_quirk(pdev);
-		if (ret)
-			return ret;
-	}
-
 	/* Initialize dma_mask and coherent_dma_mask to 32-bits */
 	ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
 	if (ret)
@@ -127,6 +118,15 @@ static int xhci_plat_probe(struct platform_device *pdev)
 			goto put_hcd;
 	}
 
+	if (of_device_is_compatible(pdev->dev.of_node,
+				    "marvell,armada-375-xhci") ||
+	    of_device_is_compatible(pdev->dev.of_node,
+				    "marvell,armada-380-xhci")) {
+		ret = xhci_mvebu_mbus_init_quirk(pdev);
+		if (ret)
+			goto disable_clk;
+	}
+
 	ret = usb_add_hcd(hcd, irq, IRQF_SHARED);
 	if (ret)
 		goto disable_clk;
@@ -156,12 +156,27 @@ static int xhci_plat_probe(struct platform_device *pdev)
 	if (HCC_MAX_PSA(xhci->hcc_params) >= 4)
 		xhci->shared_hcd->can_do_streams = 1;
 
+	hcd->usb_phy = devm_usb_get_phy_by_phandle(&pdev->dev, "usb-phy", 0);
+	if (IS_ERR(hcd->usb_phy)) {
+		ret = PTR_ERR(hcd->usb_phy);
+		if (ret == -EPROBE_DEFER)
+			goto put_usb3_hcd;
+		hcd->usb_phy = NULL;
+	} else {
+		ret = usb_phy_init(hcd->usb_phy);
+		if (ret)
+			goto put_usb3_hcd;
+	}
+
 	ret = usb_add_hcd(xhci->shared_hcd, irq, IRQF_SHARED);
 	if (ret)
-		goto put_usb3_hcd;
+		goto disable_usb_phy;
 
 	return 0;
 
+disable_usb_phy:
+	usb_phy_shutdown(hcd->usb_phy);
+
 put_usb3_hcd:
 	usb_put_hcd(xhci->shared_hcd);
 
@@ -185,6 +200,7 @@ static int xhci_plat_remove(struct platform_device *dev)
 	struct clk *clk = xhci->clk;
 
 	usb_remove_hcd(xhci->shared_hcd);
+	usb_phy_shutdown(hcd->usb_phy);
 	usb_put_hcd(xhci->shared_hcd);
 
 	usb_remove_hcd(hcd);
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index 88da8d6..f5397a5 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -238,7 +238,7 @@ static void inc_enq(struct xhci_hcd *xhci, struct xhci_ring *ring,
 
 			/* Toggle the cycle bit after the last ring segment. */
 			if (last_trb_on_last_seg(xhci, ring, ring->enq_seg, next)) {
-				ring->cycle_state = (ring->cycle_state ? 0 : 1);
+				ring->cycle_state ^= 1;
 			}
 		}
 		ring->enq_seg = ring->enq_seg->next;
@@ -1574,7 +1574,7 @@ static void handle_port_status(struct xhci_hcd *xhci,
 		} else {
 			xhci_dbg(xhci, "resume HS port %d\n", port_id);
 			bus_state->resume_done[faked_port_index] = jiffies +
-				msecs_to_jiffies(20);
+				msecs_to_jiffies(USB_RESUME_TIMEOUT);
 			set_bit(faked_port_index, &bus_state->resuming_ports);
 			mod_timer(&hcd->rh_timer,
 				  bus_state->resume_done[faked_port_index]);
@@ -1946,7 +1946,7 @@ static int process_ctrl_td(struct xhci_hcd *xhci, struct xhci_td *td,
 	if (event_trb != ep_ring->dequeue) {
 		/* The event was for the status stage */
 		if (event_trb == td->last_trb) {
-			if (td->urb->actual_length != 0) {
+			if (td->urb_length_set) {
 				/* Don't overwrite a previously set error code
 				 */
 				if ((*status == -EINPROGRESS || *status == 0) &&
@@ -1960,7 +1960,13 @@ static int process_ctrl_td(struct xhci_hcd *xhci, struct xhci_td *td,
 					td->urb->transfer_buffer_length;
 			}
 		} else {
-		/* Maybe the event was for the data stage? */
+			/*
+			 * Maybe the event was for the data stage? If so, update
+			 * already the actual_length of the URB and flag it as
+			 * set, so that it is not overwritten in the event for
+			 * the last TRB.
+			 */
+			td->urb_length_set = true;
 			td->urb->actual_length =
 				td->urb->transfer_buffer_length -
 				EVENT_TRB_LEN(le32_to_cpu(event->transfer_len));
@@ -2803,7 +2809,7 @@ static int prepare_ring(struct xhci_hcd *xhci, struct xhci_ring *ep_ring,
 
 			/* Toggle the cycle bit after the last ring segment. */
 			if (last_trb_on_last_seg(xhci, ring, ring->enq_seg, next)) {
-				ring->cycle_state = (ring->cycle_state ? 0 : 1);
+				ring->cycle_state ^= 1;
 			}
 			ring->enq_seg = ring->enq_seg->next;
 			ring->enqueue = ring->enq_seg->trbs;
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index 9745147..8e421b8 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -1,3 +1,4 @@
+
 /*
  * xHCI host controller driver
  *
@@ -88,9 +89,10 @@ struct xhci_cap_regs {
 #define HCS_IST(p)		(((p) >> 0) & 0xf)
 /* bits 4:7, max number of Event Ring segments */
 #define HCS_ERST_MAX(p)		(((p) >> 4) & 0xf)
+/* bits 21:25 Hi 5 bits of Scratchpad buffers SW must allocate for the HW */
 /* bit 26 Scratchpad restore - for save/restore HW state - not used yet */
-/* bits 27:31 number of Scratchpad buffers SW must allocate for the HW */
-#define HCS_MAX_SCRATCHPAD(p)   (((p) >> 27) & 0x1f)
+/* bits 27:31 Lo 5 bits of Scratchpad buffers SW must allocate for the HW */
+#define HCS_MAX_SCRATCHPAD(p)   ((((p) >> 16) & 0x3e0) | (((p) >> 27) & 0x1f))
 
 /* HCSPARAMS3 - hcs_params3 - bitmasks */
 /* bits 0:7, Max U1 to U0 latency for the roothub ports */
@@ -1288,6 +1290,8 @@ struct xhci_td {
 	struct xhci_segment	*start_seg;
 	union xhci_trb		*first_trb;
 	union xhci_trb		*last_trb;
+	/* actual_length of the URB has already been set */
+	bool			urb_length_set;
 };
 
 /* xHCI command default timeout value */
@@ -1560,6 +1564,7 @@ struct xhci_hcd {
 #define XHCI_SPURIOUS_WAKEUP	(1 << 18)
 /* For controllers with a broken beyond repair streams implementation */
 #define XHCI_BROKEN_STREAMS	(1 << 19)
+#define XHCI_PME_STUCK_QUIRK	(1 << 20)
 	unsigned int		num_active_eps;
 	unsigned int		limit_active_eps;
 	/* There are two roothubs to keep track of bus suspend info for */
diff --git a/drivers/usb/image/mdc800.c b/drivers/usb/image/mdc800.c
index a62865a..5cf2633 100644
--- a/drivers/usb/image/mdc800.c
+++ b/drivers/usb/image/mdc800.c
@@ -347,7 +347,8 @@ static int mdc800_usb_waitForIRQ (int mode, int msec)
 {
 	mdc800->camera_request_ready=1+mode;
 
-	wait_event_timeout(mdc800->irq_wait, mdc800->irq_woken, msec*HZ/1000);
+	wait_event_timeout(mdc800->irq_wait, mdc800->irq_woken,
+			   msecs_to_jiffies(msec));
 	mdc800->irq_woken = 0;
 
 	if (mdc800->camera_request_ready>0)
@@ -743,8 +744,9 @@ static ssize_t mdc800_device_read (struct file *file, char __user *buf, size_t l
 					mutex_unlock(&mdc800->io_lock);
 					return len-left;
 				}
-				wait_event_timeout(mdc800->download_wait, mdc800->downloaded,
-										TO_DOWNLOAD_GET_READY*HZ/1000);
+				wait_event_timeout(mdc800->download_wait,
+				     mdc800->downloaded,
+				     msecs_to_jiffies(TO_DOWNLOAD_GET_READY));
 				mdc800->downloaded = 0;
 				if (mdc800->download_urb->status != 0)
 				{
@@ -867,7 +869,8 @@ static ssize_t mdc800_device_write (struct file *file, const char __user *buf, s
 				mutex_unlock(&mdc800->io_lock);
 				return -EIO;
 			}
-			wait_event_timeout(mdc800->write_wait, mdc800->written, TO_WRITE_GET_READY*HZ/1000);
+			wait_event_timeout(mdc800->write_wait, mdc800->written,
+					msecs_to_jiffies(TO_WRITE_GET_READY));
 			mdc800->written = 0;
 			if (mdc800->state == WORKING)
 			{
diff --git a/drivers/usb/isp1760/isp1760-core.c b/drivers/usb/isp1760/isp1760-core.c
index b982755..bfa402c 100644
--- a/drivers/usb/isp1760/isp1760-core.c
+++ b/drivers/usb/isp1760/isp1760-core.c
@@ -151,8 +151,7 @@ int isp1760_register(struct resource *mem, int irq, unsigned long irqflags,
 	}
 
 	if (IS_ENABLED(CONFIG_USB_ISP1761_UDC) && !udc_disabled) {
-		ret = isp1760_udc_register(isp, irq, irqflags | IRQF_SHARED |
-					   IRQF_DISABLED);
+		ret = isp1760_udc_register(isp, irq, irqflags);
 		if (ret < 0) {
 			isp1760_hcd_unregister(&isp->hcd);
 			return ret;
diff --git a/drivers/usb/isp1760/isp1760-hcd.c b/drivers/usb/isp1760/isp1760-hcd.c
index eba9b82..ac31d19 100644
--- a/drivers/usb/isp1760/isp1760-hcd.c
+++ b/drivers/usb/isp1760/isp1760-hcd.c
@@ -1274,7 +1274,7 @@ static void errata2_function(unsigned long data)
 	for (slot = 0; slot < 32; slot++)
 		if (priv->atl_slots[slot].qh && time_after(jiffies,
 					priv->atl_slots[slot].timestamp +
-					SLOT_TIMEOUT * HZ / 1000)) {
+					msecs_to_jiffies(SLOT_TIMEOUT))) {
 			ptd_read(hcd->regs, ATL_PTD_OFFSET, slot, &ptd);
 			if (!FROM_DW0_VALID(ptd.dw0) &&
 					!FROM_DW3_ACTIVE(ptd.dw3))
@@ -1286,7 +1286,7 @@ static void errata2_function(unsigned long data)
 
 	spin_unlock_irqrestore(&priv->lock, spinflags);
 
-	errata2_timer.expires = jiffies + SLOT_CHECK_PERIOD * HZ / 1000;
+	errata2_timer.expires = jiffies + msecs_to_jiffies(SLOT_CHECK_PERIOD);
 	add_timer(&errata2_timer);
 }
 
@@ -1336,7 +1336,7 @@ static int isp1760_run(struct usb_hcd *hcd)
 		return retval;
 
 	setup_timer(&errata2_timer, errata2_function, (unsigned long)hcd);
-	errata2_timer.expires = jiffies + SLOT_CHECK_PERIOD * HZ / 1000;
+	errata2_timer.expires = jiffies + msecs_to_jiffies(SLOT_CHECK_PERIOD);
 	add_timer(&errata2_timer);
 
 	chipid = reg_read32(hcd->regs, HC_CHIP_ID_REG);
@@ -1758,7 +1758,7 @@ static void isp1760_hub_descriptor(struct isp1760_hcd *priv,
 	int ports = HCS_N_PORTS(priv->hcs_params);
 	u16 temp;
 
-	desc->bDescriptorType = 0x29;
+	desc->bDescriptorType = USB_DT_HUB;
 	/* priv 1.0, 2.3.9 says 20ms max */
 	desc->bPwrOn2PwrGood = 10;
 	desc->bHubContrCurrent = 0;
@@ -1869,7 +1869,7 @@ static int isp1760_hub_control(struct usb_hcd *hcd, u16 typeReq,
 				reg_write32(hcd->regs, HC_PORTSC1,
 							temp | PORT_RESUME);
 				priv->reset_done = jiffies +
-					msecs_to_jiffies(20);
+					msecs_to_jiffies(USB_RESUME_TIMEOUT);
 			}
 			break;
 		case USB_PORT_FEAT_C_SUSPEND:
diff --git a/drivers/usb/isp1760/isp1760-udc.c b/drivers/usb/isp1760/isp1760-udc.c
index 9612d79..3fc4fe7 100644
--- a/drivers/usb/isp1760/isp1760-udc.c
+++ b/drivers/usb/isp1760/isp1760-udc.c
@@ -1191,6 +1191,7 @@ static int isp1760_udc_start(struct usb_gadget *gadget,
 			     struct usb_gadget_driver *driver)
 {
 	struct isp1760_udc *udc = gadget_to_udc(gadget);
+	unsigned long flags;
 
 	/* The hardware doesn't support low speed. */
 	if (driver->max_speed < USB_SPEED_FULL) {
@@ -1198,17 +1199,17 @@ static int isp1760_udc_start(struct usb_gadget *gadget,
 		return -EINVAL;
 	}
 
-	spin_lock(&udc->lock);
+	spin_lock_irqsave(&udc->lock, flags);
 
 	if (udc->driver) {
 		dev_err(udc->isp->dev, "UDC already has a gadget driver\n");
-		spin_unlock(&udc->lock);
+		spin_unlock_irqrestore(&udc->lock, flags);
 		return -EBUSY;
 	}
 
 	udc->driver = driver;
 
-	spin_unlock(&udc->lock);
+	spin_unlock_irqrestore(&udc->lock, flags);
 
 	dev_dbg(udc->isp->dev, "starting UDC with driver %s\n",
 		driver->function);
@@ -1232,6 +1233,7 @@ static int isp1760_udc_start(struct usb_gadget *gadget,
 static int isp1760_udc_stop(struct usb_gadget *gadget)
 {
 	struct isp1760_udc *udc = gadget_to_udc(gadget);
+	unsigned long flags;
 
 	dev_dbg(udc->isp->dev, "%s\n", __func__);
 
@@ -1239,9 +1241,9 @@ static int isp1760_udc_stop(struct usb_gadget *gadget)
 
 	isp1760_udc_write(udc, DC_MODE, 0);
 
-	spin_lock(&udc->lock);
+	spin_lock_irqsave(&udc->lock, flags);
 	udc->driver = NULL;
-	spin_unlock(&udc->lock);
+	spin_unlock_irqrestore(&udc->lock, flags);
 
 	return 0;
 }
@@ -1411,7 +1413,7 @@ static int isp1760_udc_init(struct isp1760_udc *udc)
 		return -ENODEV;
 	}
 
-	if (chipid != 0x00011582) {
+	if (chipid != 0x00011582 && chipid != 0x00158210) {
 		dev_err(udc->isp->dev, "udc: invalid chip ID 0x%08x\n", chipid);
 		return -ENODEV;
 	}
@@ -1451,8 +1453,8 @@ int isp1760_udc_register(struct isp1760_device *isp, int irq,
 
 	sprintf(udc->irqname, "%s (udc)", devname);
 
-	ret = request_irq(irq, isp1760_udc_irq, IRQF_SHARED | IRQF_DISABLED |
-			  irqflags, udc->irqname, udc);
+	ret = request_irq(irq, isp1760_udc_irq, IRQF_SHARED | irqflags,
+			  udc->irqname, udc);
 	if (ret < 0)
 		goto error;
 
diff --git a/drivers/usb/misc/Kconfig b/drivers/usb/misc/Kconfig
index 76d7720..f7a7fc2 100644
--- a/drivers/usb/misc/Kconfig
+++ b/drivers/usb/misc/Kconfig
@@ -255,3 +255,16 @@ config USB_LINK_LAYER_TEST
 	  This driver is for generating specific traffic for Super Speed Link
 	  Layer Test Device. Say Y only when you want to conduct USB Super Speed
 	  Link Layer Test for host controllers.
+
+config USB_CHAOSKEY
+	tristate "ChaosKey random number generator driver support"
+	depends on HW_RANDOM
+	help
+	  Say Y here if you want to connect an AltusMetrum ChaosKey to
+	  your computer's USB port. The ChaosKey is a hardware random
+	  number generator which hooks into the kernel entropy pool to
+	  ensure a large supply of entropy for /dev/random and
+	  /dev/urandom and also provides direct access via /dev/chaoskeyX
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called chaoskey.
diff --git a/drivers/usb/misc/Makefile b/drivers/usb/misc/Makefile
index 65b0402..45fd4ac 100644
--- a/drivers/usb/misc/Makefile
+++ b/drivers/usb/misc/Makefile
@@ -25,6 +25,7 @@ obj-$(CONFIG_USB_USS720)		+= uss720.o
 obj-$(CONFIG_USB_SEVSEG)		+= usbsevseg.o
 obj-$(CONFIG_USB_YUREX)			+= yurex.o
 obj-$(CONFIG_USB_HSIC_USB3503)		+= usb3503.o
+obj-$(CONFIG_USB_CHAOSKEY)		+= chaoskey.o
 
 obj-$(CONFIG_USB_SISUSBVGA)		+= sisusbvga/
 obj-$(CONFIG_USB_LINK_LAYER_TEST)	+= lvstest.o
diff --git a/drivers/usb/misc/appledisplay.c b/drivers/usb/misc/appledisplay.c
index b3d245e..a0a3827 100644
--- a/drivers/usb/misc/appledisplay.c
+++ b/drivers/usb/misc/appledisplay.c
@@ -329,7 +329,7 @@ error:
 					pdata->urbdata, pdata->urb->transfer_dma);
 			usb_free_urb(pdata->urb);
 		}
-		if (pdata->bd && !IS_ERR(pdata->bd))
+		if (!IS_ERR(pdata->bd))
 			backlight_device_unregister(pdata->bd);
 		kfree(pdata->msgdata);
 	}
diff --git a/drivers/usb/misc/chaoskey.c b/drivers/usb/misc/chaoskey.c
new file mode 100644
index 0000000..3ad5d19
--- /dev/null
+++ b/drivers/usb/misc/chaoskey.c
@@ -0,0 +1,532 @@
+/*
+ * chaoskey - driver for ChaosKey device from Altus Metrum.
+ *
+ * This device provides true random numbers using a noise source based
+ * on a reverse-biased p-n junction in avalanche breakdown. More
+ * details can be found at http://chaoskey.org
+ *
+ * The driver connects to the kernel hardware RNG interface to provide
+ * entropy for /dev/random and other kernel activities. It also offers
+ * a separate /dev/ entry to allow for direct access to the random
+ * bit stream.
+ *
+ * Copyright © 2015 Keith Packard <keithp@keithp.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the GNU
+ * General Public License for more details.
+ */
+
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/usb.h>
+#include <linux/wait.h>
+#include <linux/hw_random.h>
+#include <linux/mutex.h>
+#include <linux/uaccess.h>
+
+static struct usb_driver chaoskey_driver;
+static struct usb_class_driver chaoskey_class;
+static int chaoskey_rng_read(struct hwrng *rng, void *data,
+			     size_t max, bool wait);
+
+#define usb_dbg(usb_if, format, arg...) \
+	dev_dbg(&(usb_if)->dev, format, ## arg)
+
+#define usb_err(usb_if, format, arg...) \
+	dev_err(&(usb_if)->dev, format, ## arg)
+
+/* Version Information */
+#define DRIVER_VERSION	"v0.1"
+#define DRIVER_AUTHOR	"Keith Packard, keithp@keithp.com"
+#define DRIVER_DESC	"Altus Metrum ChaosKey driver"
+#define DRIVER_SHORT	"chaoskey"
+
+MODULE_VERSION(DRIVER_VERSION);
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+#define CHAOSKEY_VENDOR_ID	0x1d50	/* OpenMoko */
+#define CHAOSKEY_PRODUCT_ID	0x60c6	/* ChaosKey */
+
+#define CHAOSKEY_BUF_LEN	64	/* max size of USB full speed packet */
+
+#define NAK_TIMEOUT (HZ)		/* stall/wait timeout for device */
+
+#ifdef CONFIG_USB_DYNAMIC_MINORS
+#define USB_CHAOSKEY_MINOR_BASE 0
+#else
+
+/* IOWARRIOR_MINOR_BASE + 16, not official yet */
+#define USB_CHAOSKEY_MINOR_BASE 224
+#endif
+
+static const struct usb_device_id chaoskey_table[] = {
+	{ USB_DEVICE(CHAOSKEY_VENDOR_ID, CHAOSKEY_PRODUCT_ID) },
+	{ },
+};
+MODULE_DEVICE_TABLE(usb, chaoskey_table);
+
+/* Driver-local specific stuff */
+struct chaoskey {
+	struct usb_interface *interface;
+	char in_ep;
+	struct mutex lock;
+	struct mutex rng_lock;
+	int open;			/* open count */
+	int present;			/* device not disconnected */
+	int size;			/* size of buf */
+	int valid;			/* bytes of buf read */
+	int used;			/* bytes of buf consumed */
+	char *name;			/* product + serial */
+	struct hwrng hwrng;		/* Embedded struct for hwrng */
+	int hwrng_registered;		/* registered with hwrng API */
+	wait_queue_head_t wait_q;	/* for timeouts */
+	char *buf;
+};
+
+static void chaoskey_free(struct chaoskey *dev)
+{
+	usb_dbg(dev->interface, "free");
+	kfree(dev->name);
+	kfree(dev->buf);
+	kfree(dev);
+}
+
+static int chaoskey_probe(struct usb_interface *interface,
+			  const struct usb_device_id *id)
+{
+	struct usb_device *udev = interface_to_usbdev(interface);
+	struct usb_host_interface *altsetting = interface->cur_altsetting;
+	int i;
+	int in_ep = -1;
+	struct chaoskey *dev;
+	int result;
+	int size;
+
+	usb_dbg(interface, "probe %s-%s", udev->product, udev->serial);
+
+	/* Find the first bulk IN endpoint and its packet size */
+	for (i = 0; i < altsetting->desc.bNumEndpoints; i++) {
+		if (usb_endpoint_is_bulk_in(&altsetting->endpoint[i].desc)) {
+			in_ep = usb_endpoint_num(&altsetting->endpoint[i].desc);
+			size = usb_endpoint_maxp(&altsetting->endpoint[i].desc);
+			break;
+		}
+	}
+
+	/* Validate endpoint and size */
+	if (in_ep == -1) {
+		usb_dbg(interface, "no IN endpoint found");
+		return -ENODEV;
+	}
+	if (size <= 0) {
+		usb_dbg(interface, "invalid size (%d)", size);
+		return -ENODEV;
+	}
+
+	if (size > CHAOSKEY_BUF_LEN) {
+		usb_dbg(interface, "size reduced from %d to %d\n",
+			size, CHAOSKEY_BUF_LEN);
+		size = CHAOSKEY_BUF_LEN;
+	}
+
+	/* Looks good, allocate and initialize */
+
+	dev = kzalloc(sizeof(struct chaoskey), GFP_KERNEL);
+
+	if (dev == NULL)
+		return -ENOMEM;
+
+	dev->buf = kmalloc(size, GFP_KERNEL);
+
+	if (dev->buf == NULL) {
+		kfree(dev);
+		return -ENOMEM;
+	}
+
+	/* Construct a name using the product and serial values. Each
+	 * device needs a unique name for the hwrng code
+	 */
+
+	if (udev->product && udev->serial) {
+		dev->name = kmalloc(strlen(udev->product) + 1 +
+				    strlen(udev->serial) + 1, GFP_KERNEL);
+		if (dev->name == NULL) {
+			kfree(dev->buf);
+			kfree(dev);
+			return -ENOMEM;
+		}
+
+		strcpy(dev->name, udev->product);
+		strcat(dev->name, "-");
+		strcat(dev->name, udev->serial);
+	}
+
+	dev->interface = interface;
+
+	dev->in_ep = in_ep;
+
+	dev->size = size;
+	dev->present = 1;
+
+	init_waitqueue_head(&dev->wait_q);
+
+	mutex_init(&dev->lock);
+	mutex_init(&dev->rng_lock);
+
+	usb_set_intfdata(interface, dev);
+
+	result = usb_register_dev(interface, &chaoskey_class);
+	if (result) {
+		usb_err(interface, "Unable to allocate minor number.");
+		usb_set_intfdata(interface, NULL);
+		chaoskey_free(dev);
+		return result;
+	}
+
+	dev->hwrng.name = dev->name ? dev->name : chaoskey_driver.name;
+	dev->hwrng.read = chaoskey_rng_read;
+
+	/* Set the 'quality' metric.  Quality is measured in units of
+	 * 1/1024's of a bit ("mills"). This should be set to 1024,
+	 * but there is a bug in the hwrng core which masks it with
+	 * 1023.
+	 *
+	 * The patch that has been merged to the crypto development
+	 * tree for that bug limits the value to 1024 at most, so by
+	 * setting this to 1024 + 1023, we get 1023 before the fix is
+	 * merged and 1024 afterwards. We'll patch this driver once
+	 * both bits of code are in the same tree.
+	 */
+	dev->hwrng.quality = 1024 + 1023;
+
+	dev->hwrng_registered = (hwrng_register(&dev->hwrng) == 0);
+	if (!dev->hwrng_registered)
+		usb_err(interface, "Unable to register with hwrng");
+
+	usb_enable_autosuspend(udev);
+
+	usb_dbg(interface, "chaoskey probe success, size %d", dev->size);
+	return 0;
+}
+
+static void chaoskey_disconnect(struct usb_interface *interface)
+{
+	struct chaoskey	*dev;
+
+	usb_dbg(interface, "disconnect");
+	dev = usb_get_intfdata(interface);
+	if (!dev) {
+		usb_dbg(interface, "disconnect failed - no dev");
+		return;
+	}
+
+	if (dev->hwrng_registered)
+		hwrng_unregister(&dev->hwrng);
+
+	usb_deregister_dev(interface, &chaoskey_class);
+
+	usb_set_intfdata(interface, NULL);
+	mutex_lock(&dev->lock);
+
+	dev->present = 0;
+
+	if (!dev->open) {
+		mutex_unlock(&dev->lock);
+		chaoskey_free(dev);
+	} else
+		mutex_unlock(&dev->lock);
+
+	usb_dbg(interface, "disconnect done");
+}
+
+static int chaoskey_open(struct inode *inode, struct file *file)
+{
+	struct chaoskey *dev;
+	struct usb_interface *interface;
+
+	/* get the interface from minor number and driver information */
+	interface = usb_find_interface(&chaoskey_driver, iminor(inode));
+	if (!interface)
+		return -ENODEV;
+
+	usb_dbg(interface, "open");
+
+	dev = usb_get_intfdata(interface);
+	if (!dev) {
+		usb_dbg(interface, "open (dev)");
+		return -ENODEV;
+	}
+
+	file->private_data = dev;
+	mutex_lock(&dev->lock);
+	++dev->open;
+	mutex_unlock(&dev->lock);
+
+	usb_dbg(interface, "open success");
+	return 0;
+}
+
+static int chaoskey_release(struct inode *inode, struct file *file)
+{
+	struct chaoskey *dev = file->private_data;
+	struct usb_interface *interface;
+
+	if (dev == NULL)
+		return -ENODEV;
+
+	interface = dev->interface;
+
+	usb_dbg(interface, "release");
+
+	mutex_lock(&dev->lock);
+
+	usb_dbg(interface, "open count at release is %d", dev->open);
+
+	if (dev->open <= 0) {
+		usb_dbg(interface, "invalid open count (%d)", dev->open);
+		mutex_unlock(&dev->lock);
+		return -ENODEV;
+	}
+
+	--dev->open;
+
+	if (!dev->present) {
+		if (dev->open == 0) {
+			mutex_unlock(&dev->lock);
+			chaoskey_free(dev);
+		} else
+			mutex_unlock(&dev->lock);
+	} else
+		mutex_unlock(&dev->lock);
+
+	usb_dbg(interface, "release success");
+	return 0;
+}
+
+/* Fill the buffer. Called with dev->lock held
+ */
+static int _chaoskey_fill(struct chaoskey *dev)
+{
+	DEFINE_WAIT(wait);
+	int result;
+	int this_read;
+	struct usb_device *udev = interface_to_usbdev(dev->interface);
+
+	usb_dbg(dev->interface, "fill");
+
+	/* Return immediately if someone called before the buffer was
+	 * empty */
+	if (dev->valid != dev->used) {
+		usb_dbg(dev->interface, "not empty yet (valid %d used %d)",
+			dev->valid, dev->used);
+		return 0;
+	}
+
+	/* Bail if the device has been removed */
+	if (!dev->present) {
+		usb_dbg(dev->interface, "device not present");
+		return -ENODEV;
+	}
+
+	/* Make sure the device is awake */
+	result = usb_autopm_get_interface(dev->interface);
+	if (result) {
+		usb_dbg(dev->interface, "wakeup failed (result %d)", result);
+		return result;
+	}
+
+	result = usb_bulk_msg(udev,
+			      usb_rcvbulkpipe(udev, dev->in_ep),
+			      dev->buf, dev->size, &this_read,
+			      NAK_TIMEOUT);
+
+	/* Let the device go back to sleep eventually */
+	usb_autopm_put_interface(dev->interface);
+
+	if (result == 0) {
+		dev->valid = this_read;
+		dev->used = 0;
+	}
+
+	usb_dbg(dev->interface, "bulk_msg result %d this_read %d",
+		result, this_read);
+
+	return result;
+}
+
+static ssize_t chaoskey_read(struct file *file,
+			     char __user *buffer,
+			     size_t count,
+			     loff_t *ppos)
+{
+	struct chaoskey *dev;
+	ssize_t read_count = 0;
+	int this_time;
+	int result = 0;
+	unsigned long remain;
+
+	dev = file->private_data;
+
+	if (dev == NULL || !dev->present)
+		return -ENODEV;
+
+	usb_dbg(dev->interface, "read %zu", count);
+
+	while (count > 0) {
+
+		/* Grab the rng_lock briefly to ensure that the hwrng interface
+		 * gets priority over other user access
+		 */
+		result = mutex_lock_interruptible(&dev->rng_lock);
+		if (result)
+			goto bail;
+		mutex_unlock(&dev->rng_lock);
+
+		result = mutex_lock_interruptible(&dev->lock);
+		if (result)
+			goto bail;
+		if (dev->valid == dev->used) {
+			result = _chaoskey_fill(dev);
+			if (result) {
+				mutex_unlock(&dev->lock);
+				goto bail;
+			}
+
+			/* Read returned zero bytes */
+			if (dev->used == dev->valid) {
+				mutex_unlock(&dev->lock);
+				goto bail;
+			}
+		}
+
+		this_time = dev->valid - dev->used;
+		if (this_time > count)
+			this_time = count;
+
+		remain = copy_to_user(buffer, dev->buf + dev->used, this_time);
+		if (remain) {
+			result = -EFAULT;
+
+			/* Consume the bytes that were copied so we don't leak
+			 * data to user space
+			 */
+			dev->used += this_time - remain;
+			mutex_unlock(&dev->lock);
+			goto bail;
+		}
+
+		count -= this_time;
+		read_count += this_time;
+		buffer += this_time;
+		dev->used += this_time;
+		mutex_unlock(&dev->lock);
+	}
+bail:
+	if (read_count) {
+		usb_dbg(dev->interface, "read %zu bytes", read_count);
+		return read_count;
+	}
+	usb_dbg(dev->interface, "empty read, result %d", result);
+	return result;
+}
+
+static int chaoskey_rng_read(struct hwrng *rng, void *data,
+			     size_t max, bool wait)
+{
+	struct chaoskey *dev = container_of(rng, struct chaoskey, hwrng);
+	int this_time;
+
+	usb_dbg(dev->interface, "rng_read max %zu wait %d", max, wait);
+
+	if (!dev->present) {
+		usb_dbg(dev->interface, "device not present");
+		return 0;
+	}
+
+	/* Hold the rng_lock until we acquire the device lock so that
+	 * this operation gets priority over other user access to the
+	 * device
+	 */
+	mutex_lock(&dev->rng_lock);
+
+	mutex_lock(&dev->lock);
+
+	mutex_unlock(&dev->rng_lock);
+
+	/* Try to fill the buffer if empty. It doesn't actually matter
+	 * if _chaoskey_fill works; we'll just return zero bytes as
+	 * the buffer will still be empty
+	 */
+	if (dev->valid == dev->used)
+		(void) _chaoskey_fill(dev);
+
+	this_time = dev->valid - dev->used;
+	if (this_time > max)
+		this_time = max;
+
+	memcpy(data, dev->buf, this_time);
+
+	dev->used += this_time;
+
+	mutex_unlock(&dev->lock);
+
+	usb_dbg(dev->interface, "rng_read this_time %d\n", this_time);
+	return this_time;
+}
+
+#ifdef CONFIG_PM
+static int chaoskey_suspend(struct usb_interface *interface,
+			    pm_message_t message)
+{
+	usb_dbg(interface, "suspend");
+	return 0;
+}
+
+static int chaoskey_resume(struct usb_interface *interface)
+{
+	usb_dbg(interface, "resume");
+	return 0;
+}
+#else
+#define chaoskey_suspend NULL
+#define chaoskey_resume NULL
+#endif
+
+/* file operation pointers */
+static const struct file_operations chaoskey_fops = {
+	.owner = THIS_MODULE,
+	.read = chaoskey_read,
+	.open = chaoskey_open,
+	.release = chaoskey_release,
+	.llseek = default_llseek,
+};
+
+/* class driver information */
+static struct usb_class_driver chaoskey_class = {
+	.name = "chaoskey%d",
+	.fops = &chaoskey_fops,
+	.minor_base = USB_CHAOSKEY_MINOR_BASE,
+};
+
+/* usb specific object needed to register this driver with the usb subsystem */
+static struct usb_driver chaoskey_driver = {
+	.name = DRIVER_SHORT,
+	.probe = chaoskey_probe,
+	.disconnect = chaoskey_disconnect,
+	.suspend = chaoskey_suspend,
+	.resume = chaoskey_resume,
+	.reset_resume = chaoskey_resume,
+	.id_table = chaoskey_table,
+	.supports_autosuspend = 1,
+};
+
+module_usb_driver(chaoskey_driver);
+
diff --git a/drivers/usb/misc/legousbtower.c b/drivers/usb/misc/legousbtower.c
index 97cd9e2..7771be3 100644
--- a/drivers/usb/misc/legousbtower.c
+++ b/drivers/usb/misc/legousbtower.c
@@ -574,7 +574,7 @@ static ssize_t tower_read (struct file *file, char __user *buffer, size_t count,
 	}
 
 	if (read_timeout) {
-		timeout = jiffies + read_timeout * HZ / 1000;
+		timeout = jiffies + msecs_to_jiffies(read_timeout);
 	}
 
 	/* wait for data */
@@ -592,7 +592,7 @@ static ssize_t tower_read (struct file *file, char __user *buffer, size_t count,
 		/* reset read timeout during read or write activity */
 		if (read_timeout
 		    && (dev->read_buffer_length || dev->interrupt_out_busy)) {
-			timeout = jiffies + read_timeout * HZ / 1000;
+			timeout = jiffies + msecs_to_jiffies(read_timeout);
 		}
 		/* check for read timeout */
 		if (read_timeout && time_after (jiffies, timeout)) {
@@ -831,7 +831,7 @@ static int tower_probe (struct usb_interface *interface, const struct usb_device
 	dev->read_buffer_length = 0;
 	dev->read_packet_length = 0;
 	spin_lock_init (&dev->read_buffer_lock);
-	dev->packet_timeout_jiffies = packet_timeout * HZ / 1000;
+	dev->packet_timeout_jiffies = msecs_to_jiffies(packet_timeout);
 	dev->read_last_arrival = jiffies;
 
 	init_waitqueue_head (&dev->read_wait);
diff --git a/drivers/usb/misc/usb3503.c b/drivers/usb/misc/usb3503.c
index 258d2f5..64ff5b9 100644
--- a/drivers/usb/misc/usb3503.c
+++ b/drivers/usb/misc/usb3503.c
@@ -186,8 +186,31 @@ static int usb3503_probe(struct usb3503 *hub)
 		hub->mode		= pdata->initial_mode;
 	} else if (np) {
 		struct clk *clk;
+		u32 rate = 0;
 		hub->port_off_mask = 0;
 
+		if (!of_property_read_u32(np, "refclk-frequency", &rate)) {
+			switch (rate) {
+			case 38400000:
+			case 26000000:
+			case 19200000:
+			case 12000000:
+				hub->secondary_ref_clk = 0;
+				break;
+			case 24000000:
+			case 27000000:
+			case 25000000:
+			case 50000000:
+				hub->secondary_ref_clk = 1;
+				break;
+			default:
+				dev_err(dev,
+					"unsupported reference clock rate (%d)\n",
+					(int) rate);
+				return -EINVAL;
+			}
+		}
+
 		clk = devm_clk_get(dev, "refclk");
 		if (IS_ERR(clk) && PTR_ERR(clk) != -ENOENT) {
 			dev_err(dev, "unable to request refclk (%ld)\n",
@@ -196,31 +219,9 @@ static int usb3503_probe(struct usb3503 *hub)
 		}
 
 		if (!IS_ERR(clk)) {
-			u32 rate = 0;
 			hub->clk = clk;
 
-			if (!of_property_read_u32(np, "refclk-frequency",
-						 &rate)) {
-
-				switch (rate) {
-				case 38400000:
-				case 26000000:
-				case 19200000:
-				case 12000000:
-					hub->secondary_ref_clk = 0;
-					break;
-				case 24000000:
-				case 27000000:
-				case 25000000:
-				case 50000000:
-					hub->secondary_ref_clk = 1;
-					break;
-				default:
-					dev_err(dev,
-						"unsupported reference clock rate (%d)\n",
-						(int) rate);
-					return -EINVAL;
-				}
+			if (rate != 0) {
 				err = clk_set_rate(hub->clk, rate);
 				if (err) {
 					dev_err(dev,
diff --git a/drivers/usb/musb/Kconfig b/drivers/usb/musb/Kconfig
index 14e1628..39db8b6 100644
--- a/drivers/usb/musb/Kconfig
+++ b/drivers/usb/musb/Kconfig
@@ -79,7 +79,8 @@ config USB_MUSB_TUSB6010
 
 config USB_MUSB_OMAP2PLUS
 	tristate "OMAP2430 and onwards"
-	depends on ARCH_OMAP2PLUS && USB && OMAP_CONTROL_PHY
+	depends on ARCH_OMAP2PLUS && USB
+	depends on OMAP_CONTROL_PHY || !OMAP_CONTROL_PHY
 	select GENERIC_PHY
 
 config USB_MUSB_AM35X
diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index e6f4cbf..3789b08 100644
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -99,6 +99,7 @@
 #include <linux/platform_device.h>
 #include <linux/io.h>
 #include <linux/dma-mapping.h>
+#include <linux/usb.h>
 
 #include "musb_core.h"
 
@@ -507,7 +508,8 @@ void musb_hnp_stop(struct musb *musb)
 	musb->port1_status &= ~(USB_PORT_STAT_C_CONNECTION << 16);
 }
 
-static void musb_generic_disable(struct musb *musb);
+static void musb_recover_from_babble(struct musb *musb);
+
 /*
  * Interrupt Service Routine to record USB "global" interrupts.
  * Since these do not happen often and signify things of
@@ -534,35 +536,21 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
 	 */
 	if (int_usb & MUSB_INTR_RESUME) {
 		handled = IRQ_HANDLED;
-		dev_dbg(musb->controller, "RESUME (%s)\n", usb_otg_state_string(musb->xceiv->otg->state));
+		dev_dbg(musb->controller, "RESUME (%s)\n",
+				usb_otg_state_string(musb->xceiv->otg->state));
 
 		if (devctl & MUSB_DEVCTL_HM) {
-			void __iomem *mbase = musb->mregs;
-			u8 power;
-
 			switch (musb->xceiv->otg->state) {
 			case OTG_STATE_A_SUSPEND:
 				/* remote wakeup?  later, GetPortStatus
 				 * will stop RESUME signaling
 				 */
 
-				power = musb_readb(musb->mregs, MUSB_POWER);
-				if (power & MUSB_POWER_SUSPENDM) {
-					/* spurious */
-					musb->int_usb &= ~MUSB_INTR_SUSPEND;
-					dev_dbg(musb->controller, "Spurious SUSPENDM\n");
-					break;
-				}
-
-				power &= ~MUSB_POWER_SUSPENDM;
-				musb_writeb(mbase, MUSB_POWER,
-						power | MUSB_POWER_RESUME);
-
 				musb->port1_status |=
 						(USB_PORT_STAT_C_SUSPEND << 16)
 						| MUSB_PORT_STAT_RESUME;
 				musb->rh_timer = jiffies
-						 + msecs_to_jiffies(20);
+					+ msecs_to_jiffies(USB_RESUME_TIMEOUT);
 				musb->need_finish_resume = 1;
 
 				musb->xceiv->otg->state = OTG_STATE_A_HOST;
@@ -775,10 +763,6 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
 
 		musb->ep0_stage = MUSB_EP0_START;
 
-		/* flush endpoints when transitioning from Device Mode */
-		if (is_peripheral_active(musb)) {
-			/* REVISIT HNP; just force disconnect */
-		}
 		musb->intrtxe = musb->epmask;
 		musb_writew(musb->mregs, MUSB_INTRTXE, musb->intrtxe);
 		musb->intrrxe = musb->epmask & 0xfffe;
@@ -879,20 +863,19 @@ b_host:
 	 */
 	if (int_usb & MUSB_INTR_RESET) {
 		handled = IRQ_HANDLED;
-		if ((devctl & MUSB_DEVCTL_HM) != 0) {
+		if (devctl & MUSB_DEVCTL_HM) {
 			/*
-			 * Looks like non-HS BABBLE can be ignored, but
-			 * HS BABBLE is an error condition. For HS the solution
-			 * is to avoid babble in the first place and fix what
-			 * caused BABBLE. When HS BABBLE happens we can only
-			 * stop the session.
+			 * When BABBLE happens what we can depends on which
+			 * platform MUSB is running, because some platforms
+			 * implemented proprietary means for 'recovering' from
+			 * Babble conditions. One such platform is AM335x. In
+			 * most cases, however, the only thing we can do is
+			 * drop the session.
 			 */
-			if (devctl & (MUSB_DEVCTL_FSDEV | MUSB_DEVCTL_LSDEV))
-				dev_dbg(musb->controller, "BABBLE devctl: %02x\n", devctl);
-			else {
-				ERR("Stopping host session -- babble\n");
-				musb_writeb(musb->mregs, MUSB_DEVCTL, 0);
-			}
+			dev_err(musb->controller, "Babble\n");
+
+			if (is_host_active(musb))
+				musb_recover_from_babble(musb);
 		} else {
 			dev_dbg(musb->controller, "BUS RESET as %s\n",
 				usb_otg_state_string(musb->xceiv->otg->state));
@@ -931,13 +914,6 @@ b_host:
 		}
 	}
 
-	/* handle babble condition */
-	if (int_usb & MUSB_INTR_BABBLE && is_host_active(musb)) {
-		musb_generic_disable(musb);
-		schedule_delayed_work(&musb->recover_work,
-				      msecs_to_jiffies(100));
-	}
-
 #if 0
 /* REVISIT ... this would be for multiplexing periodic endpoints, or
  * supporting transfer phasing to prevent exceeding ISO bandwidth
@@ -990,7 +966,7 @@ b_host:
 
 /*-------------------------------------------------------------------------*/
 
-static void musb_generic_disable(struct musb *musb)
+static void musb_disable_interrupts(struct musb *musb)
 {
 	void __iomem	*mbase = musb->mregs;
 	u16	temp;
@@ -1002,16 +978,35 @@ static void musb_generic_disable(struct musb *musb)
 	musb->intrrxe = 0;
 	musb_writew(mbase, MUSB_INTRRXE, 0);
 
-	/* off */
-	musb_writeb(mbase, MUSB_DEVCTL, 0);
-
 	/*  flush pending interrupts */
 	temp = musb_readb(mbase, MUSB_INTRUSB);
 	temp = musb_readw(mbase, MUSB_INTRTX);
 	temp = musb_readw(mbase, MUSB_INTRRX);
+}
+
+static void musb_enable_interrupts(struct musb *musb)
+{
+	void __iomem    *regs = musb->mregs;
+
+	/*  Set INT enable registers, enable interrupts */
+	musb->intrtxe = musb->epmask;
+	musb_writew(regs, MUSB_INTRTXE, musb->intrtxe);
+	musb->intrrxe = musb->epmask & 0xfffe;
+	musb_writew(regs, MUSB_INTRRXE, musb->intrrxe);
+	musb_writeb(regs, MUSB_INTRUSBE, 0xf7);
 
 }
 
+static void musb_generic_disable(struct musb *musb)
+{
+	void __iomem	*mbase = musb->mregs;
+
+	musb_disable_interrupts(musb);
+
+	/* off */
+	musb_writeb(mbase, MUSB_DEVCTL, 0);
+}
+
 /*
  * Program the HDRC to start (enable interrupts, dma, etc.).
  */
@@ -1022,13 +1017,7 @@ void musb_start(struct musb *musb)
 
 	dev_dbg(musb->controller, "<== devctl %02x\n", devctl);
 
-	/*  Set INT enable registers, enable interrupts */
-	musb->intrtxe = musb->epmask;
-	musb_writew(regs, MUSB_INTRTXE, musb->intrtxe);
-	musb->intrrxe = musb->epmask & 0xfffe;
-	musb_writew(regs, MUSB_INTRRXE, musb->intrrxe);
-	musb_writeb(regs, MUSB_INTRUSBE, 0xf7);
-
+	musb_enable_interrupts(musb);
 	musb_writeb(regs, MUSB_TESTMODE, 0);
 
 	/* put into basic highspeed mode and start session */
@@ -1587,9 +1576,12 @@ static int musb_core_init(u16 musb_type, struct musb *musb)
 irqreturn_t musb_interrupt(struct musb *musb)
 {
 	irqreturn_t	retval = IRQ_NONE;
+	unsigned long	status;
+	unsigned long	epnum;
 	u8		devctl;
-	int		ep_num;
-	u32		reg;
+
+	if (!musb->int_usb && !musb->int_tx && !musb->int_rx)
+		return IRQ_NONE;
 
 	devctl = musb_readb(musb->mregs, MUSB_DEVCTL);
 
@@ -1597,56 +1589,57 @@ irqreturn_t musb_interrupt(struct musb *musb)
 		is_host_active(musb) ? "host" : "peripheral",
 		musb->int_usb, musb->int_tx, musb->int_rx);
 
-	/* the core can interrupt us for multiple reasons; docs have
-	 * a generic interrupt flowchart to follow
+	/**
+	 * According to Mentor Graphics' documentation, flowchart on page 98,
+	 * IRQ should be handled as follows:
+	 *
+	 * . Resume IRQ
+	 * . Session Request IRQ
+	 * . VBUS Error IRQ
+	 * . Suspend IRQ
+	 * . Connect IRQ
+	 * . Disconnect IRQ
+	 * . Reset/Babble IRQ
+	 * . SOF IRQ (we're not using this one)
+	 * . Endpoint 0 IRQ
+	 * . TX Endpoints
+	 * . RX Endpoints
+	 *
+	 * We will be following that flowchart in order to avoid any problems
+	 * that might arise with internal Finite State Machine.
 	 */
-	if (musb->int_usb)
-		retval |= musb_stage0_irq(musb, musb->int_usb,
-				devctl);
 
-	/* "stage 1" is handling endpoint irqs */
+	if (musb->int_usb)
+		retval |= musb_stage0_irq(musb, musb->int_usb, devctl);
 
-	/* handle endpoint 0 first */
 	if (musb->int_tx & 1) {
 		if (is_host_active(musb))
 			retval |= musb_h_ep0_irq(musb);
 		else
 			retval |= musb_g_ep0_irq(musb);
+
+		/* we have just handled endpoint 0 IRQ, clear it */
+		musb->int_tx &= ~BIT(0);
 	}
 
-	/* RX on endpoints 1-15 */
-	reg = musb->int_rx >> 1;
-	ep_num = 1;
-	while (reg) {
-		if (reg & 1) {
-			/* musb_ep_select(musb->mregs, ep_num); */
-			/* REVISIT just retval = ep->rx_irq(...) */
-			retval = IRQ_HANDLED;
-			if (is_host_active(musb))
-				musb_host_rx(musb, ep_num);
-			else
-				musb_g_rx(musb, ep_num);
-		}
+	status = musb->int_tx;
 
-		reg >>= 1;
-		ep_num++;
+	for_each_set_bit(epnum, &status, 16) {
+		retval = IRQ_HANDLED;
+		if (is_host_active(musb))
+			musb_host_tx(musb, epnum);
+		else
+			musb_g_tx(musb, epnum);
 	}
 
-	/* TX on endpoints 1-15 */
-	reg = musb->int_tx >> 1;
-	ep_num = 1;
-	while (reg) {
-		if (reg & 1) {
-			/* musb_ep_select(musb->mregs, ep_num); */
-			/* REVISIT just retval |= ep->tx_irq(...) */
-			retval = IRQ_HANDLED;
-			if (is_host_active(musb))
-				musb_host_tx(musb, ep_num);
-			else
-				musb_g_tx(musb, ep_num);
-		}
-		reg >>= 1;
-		ep_num++;
+	status = musb->int_rx;
+
+	for_each_set_bit(epnum, &status, 16) {
+		retval = IRQ_HANDLED;
+		if (is_host_active(musb))
+			musb_host_rx(musb, epnum);
+		else
+			musb_g_rx(musb, epnum);
 	}
 
 	return retval;
@@ -1825,33 +1818,44 @@ static void musb_irq_work(struct work_struct *data)
 	}
 }
 
-/* Recover from babble interrupt conditions */
-static void musb_recover_work(struct work_struct *data)
+static void musb_recover_from_babble(struct musb *musb)
 {
-	struct musb *musb = container_of(data, struct musb, recover_work.work);
-	int status, ret;
+	int ret;
+	u8 devctl;
+
+	musb_disable_interrupts(musb);
+
+	/*
+	 * wait at least 320 cycles of 60MHz clock. That's 5.3us, we will give
+	 * it some slack and wait for 10us.
+	 */
+	udelay(10);
 
-	ret  = musb_platform_reset(musb);
-	if (ret)
+	ret  = musb_platform_recover(musb);
+	if (ret) {
+		musb_enable_interrupts(musb);
 		return;
+	}
 
-	usb_phy_vbus_off(musb->xceiv);
-	usleep_range(100, 200);
+	/* drop session bit */
+	devctl = musb_readb(musb->mregs, MUSB_DEVCTL);
+	devctl &= ~MUSB_DEVCTL_SESSION;
+	musb_writeb(musb->mregs, MUSB_DEVCTL, devctl);
 
-	usb_phy_vbus_on(musb->xceiv);
-	usleep_range(100, 200);
+	/* tell usbcore about it */
+	musb_root_disconnect(musb);
 
 	/*
 	 * When a babble condition occurs, the musb controller
 	 * removes the session bit and the endpoint config is lost.
 	 */
 	if (musb->dyn_fifo)
-		status = ep_config_from_table(musb);
+		ret = ep_config_from_table(musb);
 	else
-		status = ep_config_from_hw(musb);
+		ret = ep_config_from_hw(musb);
 
-	/* start the session again */
-	if (status == 0)
+	/* restart session */
+	if (ret == 0)
 		musb_start(musb);
 }
 
@@ -1969,10 +1973,6 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl)
 		goto fail0;
 	}
 
-	pm_runtime_use_autosuspend(musb->controller);
-	pm_runtime_set_autosuspend_delay(musb->controller, 200);
-	pm_runtime_enable(musb->controller);
-
 	spin_lock_init(&musb->lock);
 	musb->board_set_power = plat->set_power;
 	musb->min_power = plat->min_power;
@@ -1991,6 +1991,12 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl)
 	musb_readl = musb_default_readl;
 	musb_writel = musb_default_writel;
 
+	/* We need musb_read/write functions initialized for PM */
+	pm_runtime_use_autosuspend(musb->controller);
+	pm_runtime_set_autosuspend_delay(musb->controller, 200);
+	pm_runtime_irq_safe(musb->controller);
+	pm_runtime_enable(musb->controller);
+
 	/* The musb_platform_init() call:
 	 *   - adjusts musb->mregs
 	 *   - sets the musb->isr
@@ -2085,7 +2091,6 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl)
 
 	/* Init IRQ workqueue before request_irq */
 	INIT_WORK(&musb->irq_work, musb_irq_work);
-	INIT_DELAYED_WORK(&musb->recover_work, musb_recover_work);
 	INIT_DELAYED_WORK(&musb->deassert_reset_work, musb_deassert_reset);
 	INIT_DELAYED_WORK(&musb->finish_resume_work, musb_host_finish_resume);
 
@@ -2181,7 +2186,6 @@ fail4:
 
 fail3:
 	cancel_work_sync(&musb->irq_work);
-	cancel_delayed_work_sync(&musb->recover_work);
 	cancel_delayed_work_sync(&musb->finish_resume_work);
 	cancel_delayed_work_sync(&musb->deassert_reset_work);
 	if (musb->dma_controller)
@@ -2247,7 +2251,6 @@ static int musb_remove(struct platform_device *pdev)
 		dma_controller_destroy(musb->dma_controller);
 
 	cancel_work_sync(&musb->irq_work);
-	cancel_delayed_work_sync(&musb->recover_work);
 	cancel_delayed_work_sync(&musb->finish_resume_work);
 	cancel_delayed_work_sync(&musb->deassert_reset_work);
 	musb_free(musb);
@@ -2461,7 +2464,7 @@ static int musb_resume(struct device *dev)
 	if (musb->need_finish_resume) {
 		musb->need_finish_resume = 0;
 		schedule_delayed_work(&musb->finish_resume_work,
-				      msecs_to_jiffies(20));
+				      msecs_to_jiffies(USB_RESUME_TIMEOUT));
 	}
 
 	/*
@@ -2504,7 +2507,7 @@ static int musb_runtime_resume(struct device *dev)
 	if (musb->need_finish_resume) {
 		musb->need_finish_resume = 0;
 		schedule_delayed_work(&musb->finish_resume_work,
-				msecs_to_jiffies(20));
+				msecs_to_jiffies(USB_RESUME_TIMEOUT));
 	}
 
 	return 0;
diff --git a/drivers/usb/musb/musb_core.h b/drivers/usb/musb/musb_core.h
index 5e65958..3877249 100644
--- a/drivers/usb/musb/musb_core.h
+++ b/drivers/usb/musb/musb_core.h
@@ -160,7 +160,8 @@ struct musb_io;
  * @init:	turns on clocks, sets up platform-specific registers, etc
  * @exit:	undoes @init
  * @set_mode:	forcefully changes operating mode
- * @try_ilde:	tries to idle the IP
+ * @try_idle:	tries to idle the IP
+ * @recover:	platform-specific babble recovery
  * @vbus_status: returns vbus status if possible
  * @set_vbus:	forces vbus status
  * @adjust_channel_params: pre check for standard dma channel_program func
@@ -196,7 +197,7 @@ struct musb_platform_ops {
 	void	(*write_fifo)(struct musb_hw_ep *hw_ep, u16 len, const u8 *buf);
 	int	(*set_mode)(struct musb *musb, u8 mode);
 	void	(*try_idle)(struct musb *musb, unsigned long timeout);
-	int	(*reset)(struct musb *musb);
+	int	(*recover)(struct musb *musb);
 
 	int	(*vbus_status)(struct musb *musb);
 	void	(*set_vbus)(struct musb *musb, int on);
@@ -300,7 +301,6 @@ struct musb {
 
 	irqreturn_t		(*isr)(int, void *);
 	struct work_struct	irq_work;
-	struct delayed_work	recover_work;
 	struct delayed_work	deassert_reset_work;
 	struct delayed_work	finish_resume_work;
 	u16			hwvers;
@@ -558,12 +558,12 @@ static inline void musb_platform_try_idle(struct musb *musb,
 		musb->ops->try_idle(musb, timeout);
 }
 
-static inline int  musb_platform_reset(struct musb *musb)
+static inline int  musb_platform_recover(struct musb *musb)
 {
-	if (!musb->ops->reset)
-		return -EINVAL;
+	if (!musb->ops->recover)
+		return 0;
 
-	return musb->ops->reset(musb);
+	return musb->ops->recover(musb);
 }
 
 static inline int musb_platform_get_vbus_status(struct musb *musb)
diff --git a/drivers/usb/musb/musb_cppi41.c b/drivers/usb/musb/musb_cppi41.c
index be84562..8bd8c5e 100644
--- a/drivers/usb/musb/musb_cppi41.c
+++ b/drivers/usb/musb/musb_cppi41.c
@@ -225,10 +225,12 @@ static void cppi41_dma_callback(void *private_data)
 	struct dma_channel *channel = private_data;
 	struct cppi41_dma_channel *cppi41_channel = channel->private_data;
 	struct musb_hw_ep *hw_ep = cppi41_channel->hw_ep;
+	struct cppi41_dma_controller *controller;
 	struct musb *musb = hw_ep->musb;
 	unsigned long flags;
 	struct dma_tx_state txstate;
 	u32 transferred;
+	int is_hs = 0;
 	bool empty;
 
 	spin_lock_irqsave(&musb->lock, flags);
@@ -248,61 +250,59 @@ static void cppi41_dma_callback(void *private_data)
 			transferred < cppi41_channel->packet_sz)
 		cppi41_channel->prog_len = 0;
 
-	empty = musb_is_tx_fifo_empty(hw_ep);
-	if (empty) {
+	if (cppi41_channel->is_tx)
+		empty = musb_is_tx_fifo_empty(hw_ep);
+
+	if (!cppi41_channel->is_tx || empty) {
 		cppi41_trans_done(cppi41_channel);
-	} else {
-		struct cppi41_dma_controller *controller;
-		int is_hs = 0;
-		/*
-		 * On AM335x it has been observed that the TX interrupt fires
-		 * too early that means the TXFIFO is not yet empty but the DMA
-		 * engine says that it is done with the transfer. We don't
-		 * receive a FIFO empty interrupt so the only thing we can do is
-		 * to poll for the bit. On HS it usually takes 2us, on FS around
-		 * 110us - 150us depending on the transfer size.
-		 * We spin on HS (no longer than than 25us and setup a timer on
-		 * FS to check for the bit and complete the transfer.
-		 */
-		controller = cppi41_channel->controller;
+		goto out;
+	}
 
-		if (is_host_active(musb)) {
-			if (musb->port1_status & USB_PORT_STAT_HIGH_SPEED)
-				is_hs = 1;
-		} else {
-			if (musb->g.speed == USB_SPEED_HIGH)
-				is_hs = 1;
-		}
-		if (is_hs) {
-			unsigned wait = 25;
-
-			do {
-				empty = musb_is_tx_fifo_empty(hw_ep);
-				if (empty)
-					break;
-				wait--;
-				if (!wait)
-					break;
-				udelay(1);
-			} while (1);
+	/*
+	 * On AM335x it has been observed that the TX interrupt fires
+	 * too early that means the TXFIFO is not yet empty but the DMA
+	 * engine says that it is done with the transfer. We don't
+	 * receive a FIFO empty interrupt so the only thing we can do is
+	 * to poll for the bit. On HS it usually takes 2us, on FS around
+	 * 110us - 150us depending on the transfer size.
+	 * We spin on HS (no longer than than 25us and setup a timer on
+	 * FS to check for the bit and complete the transfer.
+	 */
+	controller = cppi41_channel->controller;
+
+	if (is_host_active(musb)) {
+		if (musb->port1_status & USB_PORT_STAT_HIGH_SPEED)
+			is_hs = 1;
+	} else {
+		if (musb->g.speed == USB_SPEED_HIGH)
+			is_hs = 1;
+	}
+	if (is_hs) {
+		unsigned wait = 25;
 
+		do {
 			empty = musb_is_tx_fifo_empty(hw_ep);
 			if (empty) {
 				cppi41_trans_done(cppi41_channel);
 				goto out;
 			}
-		}
-		list_add_tail(&cppi41_channel->tx_check,
-				&controller->early_tx_list);
-		if (!hrtimer_is_queued(&controller->early_tx)) {
-			unsigned long usecs = cppi41_channel->total_len / 10;
+			wait--;
+			if (!wait)
+				break;
+			cpu_relax();
+		} while (1);
+	}
+	list_add_tail(&cppi41_channel->tx_check,
+			&controller->early_tx_list);
+	if (!hrtimer_is_queued(&controller->early_tx)) {
+		unsigned long usecs = cppi41_channel->total_len / 10;
 
-			hrtimer_start_range_ns(&controller->early_tx,
+		hrtimer_start_range_ns(&controller->early_tx,
 				ktime_set(0, usecs * NSEC_PER_USEC),
 				20 * NSEC_PER_USEC,
 				HRTIMER_MODE_REL);
-		}
 	}
+
 out:
 	spin_unlock_irqrestore(&musb->lock, flags);
 }
diff --git a/drivers/usb/musb/musb_dsps.c b/drivers/usb/musb/musb_dsps.c
index 53bd0e7..65d931a 100644
--- a/drivers/usb/musb/musb_dsps.c
+++ b/drivers/usb/musb/musb_dsps.c
@@ -119,7 +119,7 @@ struct dsps_musb_wrapper {
 	unsigned	iddig:5;
 	unsigned	iddig_mux:5;
 	/* miscellaneous stuff */
-	u8		poll_seconds;
+	unsigned	poll_timeout;
 };
 
 /*
@@ -225,9 +225,8 @@ static void dsps_musb_enable(struct musb *musb)
 
 	dsps_writel(reg_base, wrp->epintr_set, epmask);
 	dsps_writel(reg_base, wrp->coreintr_set, coremask);
-	/* Force the DRVVBUS IRQ so we can start polling for ID change. */
-	dsps_writel(reg_base, wrp->coreintr_set,
-		    (1 << wrp->drvvbus) << wrp->usb_shift);
+	/* start polling for ID change. */
+	mod_timer(&glue->timer, jiffies + msecs_to_jiffies(wrp->poll_timeout));
 	dsps_musb_try_idle(musb, 0);
 }
 
@@ -285,7 +284,8 @@ static void otg_timer(unsigned long _musb)
 		}
 		if (!(devctl & MUSB_DEVCTL_SESSION) && !skip_session)
 			dsps_writeb(mregs, MUSB_DEVCTL, MUSB_DEVCTL_SESSION);
-		mod_timer(&glue->timer, jiffies + wrp->poll_seconds * HZ);
+		mod_timer(&glue->timer, jiffies +
+				msecs_to_jiffies(wrp->poll_timeout));
 		break;
 	case OTG_STATE_A_WAIT_VFALL:
 		musb->xceiv->otg->state = OTG_STATE_A_WAIT_VRISE;
@@ -330,28 +330,6 @@ static irqreturn_t dsps_interrupt(int irq, void *hci)
 
 	dev_dbg(musb->controller, "usbintr (%x) epintr(%x)\n",
 			usbintr, epintr);
-	/*
-	 * DRVVBUS IRQs are the only proxy we have (a very poor one!) for
-	 * DSPS IP's missing ID change IRQ.  We need an ID change IRQ to
-	 * switch appropriately between halves of the OTG state machine.
-	 * Managing DEVCTL.SESSION per Mentor docs requires that we know its
-	 * value but DEVCTL.BDEVICE is invalid without DEVCTL.SESSION set.
-	 * Also, DRVVBUS pulses for SRP (but not at 5V) ...
-	 */
-	if (is_host_active(musb) && usbintr & MUSB_INTR_BABBLE) {
-		pr_info("CAUTION: musb: Babble Interrupt Occurred\n");
-
-		/*
-		 * When a babble condition occurs, the musb controller removes
-		 * the session and is no longer in host mode. Hence, all
-		 * devices connected to its root hub get disconnected.
-		 *
-		 * Hand this error down to the musb core isr, so it can
-		 * recover.
-		 */
-		musb->int_usb = MUSB_INTR_BABBLE | MUSB_INTR_DISCONNECT;
-		musb->int_tx = musb->int_rx = 0;
-	}
 
 	if (usbintr & ((1 << wrp->drvvbus) << wrp->usb_shift)) {
 		int drvvbus = dsps_readl(reg_base, wrp->status);
@@ -374,8 +352,8 @@ static irqreturn_t dsps_interrupt(int irq, void *hci)
 			 */
 			musb->int_usb &= ~MUSB_INTR_VBUSERROR;
 			musb->xceiv->otg->state = OTG_STATE_A_WAIT_VFALL;
-			mod_timer(&glue->timer,
-					jiffies + wrp->poll_seconds * HZ);
+			mod_timer(&glue->timer, jiffies +
+					msecs_to_jiffies(wrp->poll_timeout));
 			WARNING("VBUS error workaround (delay coming)\n");
 		} else if (drvvbus) {
 			MUSB_HST_MODE(musb);
@@ -404,7 +382,8 @@ static irqreturn_t dsps_interrupt(int irq, void *hci)
 	/* Poll for ID change in OTG port mode */
 	if (musb->xceiv->otg->state == OTG_STATE_B_IDLE &&
 			musb->port_mode == MUSB_PORT_MODE_DUAL_ROLE)
-		mod_timer(&glue->timer, jiffies + wrp->poll_seconds * HZ);
+		mod_timer(&glue->timer, jiffies +
+				msecs_to_jiffies(wrp->poll_timeout));
 out:
 	spin_unlock_irqrestore(&musb->lock, flags);
 
@@ -453,16 +432,31 @@ static int dsps_musb_init(struct musb *musb)
 	musb->ctrl_base = reg_base;
 
 	/* NOP driver needs change if supporting dual instance */
-	musb->xceiv = devm_usb_get_phy_by_phandle(dev, "phys", 0);
+	musb->xceiv = devm_usb_get_phy_by_phandle(dev->parent, "phys", 0);
 	if (IS_ERR(musb->xceiv))
 		return PTR_ERR(musb->xceiv);
 
+	musb->phy = devm_phy_get(dev->parent, "usb2-phy");
+
 	/* Returns zero if e.g. not clocked */
 	rev = dsps_readl(reg_base, wrp->revision);
 	if (!rev)
 		return -ENODEV;
 
 	usb_phy_init(musb->xceiv);
+	if (IS_ERR(musb->phy))  {
+		musb->phy = NULL;
+	} else {
+		ret = phy_init(musb->phy);
+		if (ret < 0)
+			return ret;
+		ret = phy_power_on(musb->phy);
+		if (ret) {
+			phy_exit(musb->phy);
+			return ret;
+		}
+	}
+
 	setup_timer(&glue->timer, otg_timer, (unsigned long) musb);
 
 	/* Reset the musb */
@@ -482,7 +476,7 @@ static int dsps_musb_init(struct musb *musb)
 	 * logic enabled.
 	 */
 	val = dsps_readb(musb->mregs, MUSB_BABBLE_CTL);
-	if (val == MUSB_BABBLE_RCV_DISABLE) {
+	if (val & MUSB_BABBLE_RCV_DISABLE) {
 		glue->sw_babble_enabled = true;
 		val |= MUSB_BABBLE_SW_SESSION_CTRL;
 		dsps_writeb(musb->mregs, MUSB_BABBLE_CTL, val);
@@ -502,6 +496,8 @@ static int dsps_musb_exit(struct musb *musb)
 
 	del_timer_sync(&glue->timer);
 	usb_phy_shutdown(musb->xceiv);
+	phy_power_off(musb->phy);
+	phy_exit(musb->phy);
 	debugfs_remove_recursive(glue->dbgfs_root);
 
 	return 0;
@@ -554,7 +550,7 @@ static int dsps_musb_set_mode(struct musb *musb, u8 mode)
 	return 0;
 }
 
-static bool  sw_babble_control(struct musb *musb)
+static bool dsps_sw_babble_control(struct musb *musb)
 {
 	u8 babble_ctl;
 	bool session_restart =  false;
@@ -605,31 +601,36 @@ static bool  sw_babble_control(struct musb *musb)
 	return session_restart;
 }
 
-static int dsps_musb_reset(struct musb *musb)
+static int dsps_musb_recover(struct musb *musb)
 {
 	struct device *dev = musb->controller;
 	struct dsps_glue *glue = dev_get_drvdata(dev->parent);
-	const struct dsps_musb_wrapper *wrp = glue->wrp;
 	int session_restart = 0;
 
 	if (glue->sw_babble_enabled)
-		session_restart = sw_babble_control(musb);
-	/*
-	 * In case of new silicon version babble condition can be recovered
-	 * without resetting the MUSB. But for older silicon versions, MUSB
-	 * reset is needed
-	 */
-	if (session_restart || !glue->sw_babble_enabled) {
-		dev_info(musb->controller, "Restarting MUSB to recover from Babble\n");
-		dsps_writel(musb->ctrl_base, wrp->control, (1 << wrp->reset));
-		usleep_range(100, 200);
-		usb_phy_shutdown(musb->xceiv);
-		usleep_range(100, 200);
-		usb_phy_init(musb->xceiv);
+		session_restart = dsps_sw_babble_control(musb);
+	else
 		session_restart = 1;
+
+	return session_restart ? 0 : -EPIPE;
+}
+
+/* Similar to am35x, dm81xx support only 32-bit read operation */
+static void dsps_read_fifo32(struct musb_hw_ep *hw_ep, u16 len, u8 *dst)
+{
+	void __iomem *fifo = hw_ep->fifo;
+
+	if (len >= 4) {
+		ioread32_rep(fifo, dst, len >> 2);
+		dst += len & ~0x03;
+		len &= 0x03;
 	}
 
-	return !session_restart;
+	/* Read any remaining 1 to 3 bytes */
+	if (len > 0) {
+		u32 val = musb_readl(fifo, 0);
+		memcpy(dst, &val, len);
+	}
 }
 
 static struct musb_platform_ops dsps_ops = {
@@ -642,7 +643,7 @@ static struct musb_platform_ops dsps_ops = {
 
 	.try_idle	= dsps_musb_try_idle,
 	.set_mode	= dsps_musb_set_mode,
-	.reset		= dsps_musb_reset,
+	.recover	= dsps_musb_recover,
 };
 
 static u64 musb_dmamask = DMA_BIT_MASK(32);
@@ -687,7 +688,7 @@ static int dsps_create_musb_pdev(struct dsps_glue *glue,
 	struct musb_hdrc_config	*config;
 	struct platform_device *musb;
 	struct device_node *dn = parent->dev.of_node;
-	int ret;
+	int ret, val;
 
 	memset(resources, 0, sizeof(resources));
 	res = platform_get_resource_byname(parent, IORESOURCE_MEM, "mc");
@@ -714,7 +715,6 @@ static int dsps_create_musb_pdev(struct dsps_glue *glue,
 	musb->dev.parent		= dev;
 	musb->dev.dma_mask		= &musb_dmamask;
 	musb->dev.coherent_dma_mask	= musb_dmamask;
-	musb->dev.of_node		= of_node_get(dn);
 
 	glue->musb = musb;
 
@@ -739,7 +739,10 @@ static int dsps_create_musb_pdev(struct dsps_glue *glue,
 	pdata.mode = get_musb_port_mode(dev);
 	/* DT keeps this entry in mA, musb expects it as per USB spec */
 	pdata.power = get_int_prop(dn, "mentor,power") / 2;
-	config->multipoint = of_property_read_bool(dn, "mentor,multipoint");
+
+	ret = of_property_read_u32(dn, "mentor,multipoint", &val);
+	if (!ret && val)
+		config->multipoint = true;
 
 	ret = platform_device_add_data(musb, &pdata, sizeof(pdata));
 	if (ret) {
@@ -776,6 +779,9 @@ static int dsps_probe(struct platform_device *pdev)
 	}
 	wrp = match->data;
 
+	if (of_device_is_compatible(pdev->dev.of_node, "ti,musb-dm816"))
+		dsps_ops.read_fifo = dsps_read_fifo32;
+
 	/* allocate glue */
 	glue = devm_kzalloc(&pdev->dev, sizeof(*glue), GFP_KERNEL);
 	if (!glue)
@@ -847,12 +853,14 @@ static const struct dsps_musb_wrapper am33xx_driver_data = {
 	.rxep_shift		= 16,
 	.rxep_mask		= 0xfffe,
 	.rxep_bitmap		= (0xfffe << 16),
-	.poll_seconds		= 2,
+	.poll_timeout		= 2000, /* ms */
 };
 
 static const struct of_device_id musb_dsps_of_match[] = {
 	{ .compatible = "ti,musb-am33xx",
-		.data = (void *) &am33xx_driver_data, },
+		.data = &am33xx_driver_data, },
+	{ .compatible = "ti,musb-dm816",
+		.data = &am33xx_driver_data, },
 	{  },
 };
 MODULE_DEVICE_TABLE(of, musb_dsps_of_match);
@@ -903,7 +911,8 @@ static int dsps_resume(struct device *dev)
 	dsps_writel(mbase, wrp->rx_mode, glue->context.rx_mode);
 	if (musb->xceiv->otg->state == OTG_STATE_B_IDLE &&
 	    musb->port_mode == MUSB_PORT_MODE_DUAL_ROLE)
-		mod_timer(&glue->timer, jiffies + wrp->poll_seconds * HZ);
+		mod_timer(&glue->timer, jiffies +
+				msecs_to_jiffies(wrp->poll_timeout));
 
 	return 0;
 }
diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c
index b2d9040..4c481cd 100644
--- a/drivers/usb/musb/musb_gadget.c
+++ b/drivers/usb/musb/musb_gadget.c
@@ -1876,44 +1876,6 @@ err:
 	return retval;
 }
 
-static void stop_activity(struct musb *musb, struct usb_gadget_driver *driver)
-{
-	int			i;
-	struct musb_hw_ep	*hw_ep;
-
-	/* don't disconnect if it's not connected */
-	if (musb->g.speed == USB_SPEED_UNKNOWN)
-		driver = NULL;
-	else
-		musb->g.speed = USB_SPEED_UNKNOWN;
-
-	/* deactivate the hardware */
-	if (musb->softconnect) {
-		musb->softconnect = 0;
-		musb_pullup(musb, 0);
-	}
-	musb_stop(musb);
-
-	/* killing any outstanding requests will quiesce the driver;
-	 * then report disconnect
-	 */
-	if (driver) {
-		for (i = 0, hw_ep = musb->endpoints;
-				i < musb->nr_endpoints;
-				i++, hw_ep++) {
-			musb_ep_select(musb->mregs, i);
-			if (hw_ep->is_shared_fifo /* || !epnum */) {
-				nuke(&hw_ep->ep_in, -ESHUTDOWN);
-			} else {
-				if (hw_ep->max_packet_sz_tx)
-					nuke(&hw_ep->ep_in, -ESHUTDOWN);
-				if (hw_ep->max_packet_sz_rx)
-					nuke(&hw_ep->ep_out, -ESHUTDOWN);
-			}
-		}
-	}
-}
-
 /*
  * Unregister the gadget driver. Used by gadget drivers when
  * unregistering themselves from the controller.
@@ -1940,7 +1902,7 @@ static int musb_gadget_stop(struct usb_gadget *g)
 	(void) musb_gadget_vbus_draw(&musb->g, 0);
 
 	musb->xceiv->otg->state = OTG_STATE_UNDEFINED;
-	stop_activity(musb, NULL);
+	musb_stop(musb);
 	otg_set_peripheral(musb->xceiv->otg, NULL);
 
 	musb->is_active = 0;
diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c
index 883a9ad..c3d5fc9 100644
--- a/drivers/usb/musb/musb_host.c
+++ b/drivers/usb/musb/musb_host.c
@@ -2613,7 +2613,7 @@ static const struct hc_driver musb_hc_driver = {
 	.description		= "musb-hcd",
 	.product_desc		= "MUSB HDRC host driver",
 	.hcd_priv_size		= sizeof(struct musb *),
-	.flags			= HCD_USB2 | HCD_MEMORY,
+	.flags			= HCD_USB2 | HCD_MEMORY | HCD_BH,
 
 	/* not using irq handler or reset hooks from usbcore, since
 	 * those must be shared with peripheral code for OTG configs
diff --git a/drivers/usb/musb/musb_virthub.c b/drivers/usb/musb/musb_virthub.c
index 294e159..86c4b53 100644
--- a/drivers/usb/musb/musb_virthub.c
+++ b/drivers/usb/musb/musb_virthub.c
@@ -136,7 +136,7 @@ void musb_port_suspend(struct musb *musb, bool do_suspend)
 		/* later, GetPortStatus will stop RESUME signaling */
 		musb->port1_status |= MUSB_PORT_STAT_RESUME;
 		schedule_delayed_work(&musb->finish_resume_work,
-				      msecs_to_jiffies(20));
+				      msecs_to_jiffies(USB_RESUME_TIMEOUT));
 	}
 }
 
@@ -345,7 +345,7 @@ int musb_hub_control(
 		struct usb_hub_descriptor *desc = (void *)buf;
 
 		desc->bDescLength = 9;
-		desc->bDescriptorType = 0x29;
+		desc->bDescriptorType = USB_DT_HUB;
 		desc->bNbrPorts = 1;
 		desc->wHubCharacteristics = cpu_to_le16(
 			HUB_CHAR_INDV_PORT_LPSM /* per-port power switching */
diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c
index 763649e..cc752d8 100644
--- a/drivers/usb/musb/omap2430.c
+++ b/drivers/usb/musb/omap2430.c
@@ -516,7 +516,7 @@ static int omap2430_probe(struct platform_device *pdev)
 	struct omap2430_glue		*glue;
 	struct device_node		*np = pdev->dev.of_node;
 	struct musb_hdrc_config		*config;
-	int				ret = -ENOMEM;
+	int				ret = -ENOMEM, val;
 
 	glue = devm_kzalloc(&pdev->dev, sizeof(*glue), GFP_KERNEL);
 	if (!glue)
@@ -559,7 +559,10 @@ static int omap2430_probe(struct platform_device *pdev)
 		of_property_read_u32(np, "num-eps", (u32 *)&config->num_eps);
 		of_property_read_u32(np, "ram-bits", (u32 *)&config->ram_bits);
 		of_property_read_u32(np, "power", (u32 *)&pdata->power);
-		config->multipoint = of_property_read_bool(np, "multipoint");
+
+		ret = of_property_read_u32(np, "multipoint", &val);
+		if (!ret && val)
+			config->multipoint = true;
 
 		pdata->board_data	= data;
 		pdata->config		= config;
diff --git a/drivers/usb/phy/Kconfig b/drivers/usb/phy/Kconfig
index 52d3d58..2175678 100644
--- a/drivers/usb/phy/Kconfig
+++ b/drivers/usb/phy/Kconfig
@@ -139,7 +139,7 @@ config USB_ISP1301
 
 config USB_MSM_OTG
 	tristate "Qualcomm on-chip USB OTG controller support"
-	depends on (USB || USB_GADGET) && (ARCH_MSM || ARCH_QCOM || COMPILE_TEST)
+	depends on (USB || USB_GADGET) && (ARCH_QCOM || COMPILE_TEST)
 	depends on RESET_CONTROLLER
 	select USB_PHY
 	help
@@ -202,13 +202,13 @@ config USB_RCAR_GEN2_PHY
 config USB_ULPI
 	bool "Generic ULPI Transceiver Driver"
 	depends on ARM || ARM64
+	select USB_ULPI_VIEWPORT
 	help
 	  Enable this to support ULPI connected USB OTG transceivers which
 	  are likely found on embedded boards.
 
 config USB_ULPI_VIEWPORT
 	bool
-	depends on USB_ULPI
 	help
 	  Provides read/write operations to the ULPI phy register set for
 	  controllers with a viewport register (e.g. Chipidea/ARC controllers).
diff --git a/drivers/usb/phy/of.c b/drivers/usb/phy/of.c
index 7ea0154..66ffa82 100644
--- a/drivers/usb/phy/of.c
+++ b/drivers/usb/phy/of.c
@@ -27,7 +27,7 @@ static const char *const usbphy_modes[] = {
  * @np:	Pointer to the given device_node
  *
  * The function gets phy interface string from property 'phy_type',
- * and returns the correspondig enum usb_phy_interface
+ * and returns the corresponding enum usb_phy_interface
  */
 enum usb_phy_interface of_usb_get_phy_mode(struct device_node *np)
 {
diff --git a/drivers/usb/phy/phy-ab8500-usb.c b/drivers/usb/phy/phy-ab8500-usb.c
index 0b1bd23..7225d52 100644
--- a/drivers/usb/phy/phy-ab8500-usb.c
+++ b/drivers/usb/phy/phy-ab8500-usb.c
@@ -277,7 +277,7 @@ static void ab8500_usb_regulator_enable(struct ab8500_usb *ab)
 			dev_err(ab->dev, "Failed to set the Vintcore to 1.3V, ret=%d\n",
 					ret);
 
-		ret = regulator_set_optimum_mode(ab->v_ulpi, 28000);
+		ret = regulator_set_load(ab->v_ulpi, 28000);
 		if (ret < 0)
 			dev_err(ab->dev, "Failed to set optimum mode (ret=%d)\n",
 					ret);
@@ -317,7 +317,7 @@ static void ab8500_usb_regulator_disable(struct ab8500_usb *ab)
 						ab->saved_v_ulpi, ret);
 		}
 
-		ret = regulator_set_optimum_mode(ab->v_ulpi, 0);
+		ret = regulator_set_load(ab->v_ulpi, 0);
 		if (ret < 0)
 			dev_err(ab->dev, "Failed to set optimum mode (ret=%d)\n",
 					ret);
@@ -893,7 +893,7 @@ static int abx500_usb_link_status_update(struct ab8500_usb *ab)
 
 /*
  * Disconnection Sequence:
- *   1. Disconect Interrupt
+ *   1. Disconnect Interrupt
  *   2. Disable regulators
  *   3. Disable AB clock
  *   4. Disable the Phy
diff --git a/drivers/usb/phy/phy-am335x-control.c b/drivers/usb/phy/phy-am335x-control.c
index 403fab7..7b3035f 100644
--- a/drivers/usb/phy/phy-am335x-control.c
+++ b/drivers/usb/phy/phy-am335x-control.c
@@ -126,6 +126,9 @@ struct phy_control *am335x_get_phy_control(struct device *dev)
 		return NULL;
 
 	dev = bus_find_device(&platform_bus_type, NULL, node, match);
+	if (!dev)
+		return NULL;
+
 	ctrl_usb = dev_get_drvdata(dev);
 	if (!ctrl_usb)
 		return NULL;
diff --git a/drivers/usb/phy/phy-generic.c b/drivers/usb/phy/phy-generic.c
index 70be50b..deee68e 100644
--- a/drivers/usb/phy/phy-generic.c
+++ b/drivers/usb/phy/phy-generic.c
@@ -62,14 +62,14 @@ static int nop_set_suspend(struct usb_phy *x, int suspend)
 	return 0;
 }
 
-static void nop_reset_set(struct usb_phy_generic *nop, int asserted)
+static void nop_reset(struct usb_phy_generic *nop)
 {
 	if (!nop->gpiod_reset)
 		return;
 
-	gpiod_direction_output(nop->gpiod_reset, !asserted);
+	gpiod_set_value(nop->gpiod_reset, 1);
 	usleep_range(10000, 20000);
-	gpiod_set_value(nop->gpiod_reset, asserted);
+	gpiod_set_value(nop->gpiod_reset, 0);
 }
 
 /* interface to regulator framework */
@@ -151,8 +151,7 @@ int usb_gen_phy_init(struct usb_phy *phy)
 	if (!IS_ERR(nop->clk))
 		clk_prepare_enable(nop->clk);
 
-	/* De-assert RESET */
-	nop_reset_set(nop, 0);
+	nop_reset(nop);
 
 	return 0;
 }
@@ -162,8 +161,7 @@ void usb_gen_phy_shutdown(struct usb_phy *phy)
 {
 	struct usb_phy_generic *nop = dev_get_drvdata(phy->dev);
 
-	/* Assert RESET */
-	nop_reset_set(nop, 1);
+	gpiod_set_value(nop->gpiod_reset, 1);
 
 	if (!IS_ERR(nop->clk))
 		clk_disable_unprepare(nop->clk);
diff --git a/drivers/usb/phy/phy-msm-usb.c b/drivers/usb/phy/phy-msm-usb.c
index 000fd89..c9156be 100644
--- a/drivers/usb/phy/phy-msm-usb.c
+++ b/drivers/usb/phy/phy-msm-usb.c
@@ -142,27 +142,22 @@ static int msm_hsusb_ldo_set_mode(struct msm_otg *motg, int on)
 	int ret = 0;
 
 	if (on) {
-		ret = regulator_set_optimum_mode(motg->v1p8,
-				USB_PHY_1P8_HPM_LOAD);
+		ret = regulator_set_load(motg->v1p8, USB_PHY_1P8_HPM_LOAD);
 		if (ret < 0) {
 			pr_err("Could not set HPM for v1p8\n");
 			return ret;
 		}
-		ret = regulator_set_optimum_mode(motg->v3p3,
-				USB_PHY_3P3_HPM_LOAD);
+		ret = regulator_set_load(motg->v3p3, USB_PHY_3P3_HPM_LOAD);
 		if (ret < 0) {
 			pr_err("Could not set HPM for v3p3\n");
-			regulator_set_optimum_mode(motg->v1p8,
-				USB_PHY_1P8_LPM_LOAD);
+			regulator_set_load(motg->v1p8, USB_PHY_1P8_LPM_LOAD);
 			return ret;
 		}
 	} else {
-		ret = regulator_set_optimum_mode(motg->v1p8,
-				USB_PHY_1P8_LPM_LOAD);
+		ret = regulator_set_load(motg->v1p8, USB_PHY_1P8_LPM_LOAD);
 		if (ret < 0)
 			pr_err("Could not set LPM for v1p8\n");
-		ret = regulator_set_optimum_mode(motg->v3p3,
-				USB_PHY_3P3_LPM_LOAD);
+		ret = regulator_set_load(motg->v3p3, USB_PHY_3P3_LPM_LOAD);
 		if (ret < 0)
 			pr_err("Could not set LPM for v3p3\n");
 	}
@@ -263,9 +258,7 @@ static int msm_otg_link_clk_reset(struct msm_otg *motg, bool assert)
 {
 	int ret;
 
-	if (motg->pdata->link_clk_reset)
-		ret = motg->pdata->link_clk_reset(motg->clk, assert);
-	else if (assert)
+	if (assert)
 		ret = reset_control_assert(motg->link_rst);
 	else
 		ret = reset_control_deassert(motg->link_rst);
@@ -281,9 +274,7 @@ static int msm_otg_phy_clk_reset(struct msm_otg *motg)
 {
 	int ret = 0;
 
-	if (motg->pdata->phy_clk_reset)
-		ret = motg->pdata->phy_clk_reset(motg->phy_reset_clk);
-	else if (motg->phy_rst)
+	if (motg->phy_rst)
 		ret = reset_control_reset(motg->phy_rst);
 
 	if (ret)
@@ -1551,16 +1542,6 @@ static int msm_otg_probe(struct platform_device *pdev)
 	phy = &motg->phy;
 	phy->dev = &pdev->dev;
 
-	if (motg->pdata->phy_clk_reset) {
-		motg->phy_reset_clk = devm_clk_get(&pdev->dev,
-					   np ? "phy" : "usb_phy_clk");
-
-		if (IS_ERR(motg->phy_reset_clk)) {
-			dev_err(&pdev->dev, "failed to get usb_phy_clk\n");
-			return PTR_ERR(motg->phy_reset_clk);
-		}
-	}
-
 	motg->clk = devm_clk_get(&pdev->dev, np ? "core" : "usb_hs_clk");
 	if (IS_ERR(motg->clk)) {
 		dev_err(&pdev->dev, "failed to get usb_hs_clk\n");
diff --git a/drivers/usb/phy/phy-rcar-gen2-usb.c b/drivers/usb/phy/phy-rcar-gen2-usb.c
index f838084..f81800b 100644
--- a/drivers/usb/phy/phy-rcar-gen2-usb.c
+++ b/drivers/usb/phy/phy-rcar-gen2-usb.c
@@ -47,7 +47,7 @@ struct rcar_gen2_usb_phy_priv {
 
 /* USB General status register */
 #define USBHS_UGSTS_REG			0x88
-#define USBHS_UGSTS_LOCK		(3 << 8)
+#define USBHS_UGSTS_LOCK		(1 << 8)
 
 /* Enable USBHS internal phy */
 static int __rcar_gen2_usbhs_phy_enable(void __iomem *base)
diff --git a/drivers/usb/phy/phy.c b/drivers/usb/phy/phy.c
index 2f9735b..d1cd6b5 100644
--- a/drivers/usb/phy/phy.c
+++ b/drivers/usb/phy/phy.c
@@ -81,7 +81,9 @@ static void devm_usb_phy_release(struct device *dev, void *res)
 
 static int devm_usb_phy_match(struct device *dev, void *res, void *match_data)
 {
-	return res == match_data;
+	struct usb_phy **phy = res;
+
+	return *phy == match_data;
 }
 
 /**
diff --git a/drivers/usb/renesas_usbhs/Kconfig b/drivers/usb/renesas_usbhs/Kconfig
index de83b9d..ebc99ee 100644
--- a/drivers/usb/renesas_usbhs/Kconfig
+++ b/drivers/usb/renesas_usbhs/Kconfig
@@ -6,6 +6,7 @@ config USB_RENESAS_USBHS
 	tristate 'Renesas USBHS controller'
 	depends on USB_GADGET
 	depends on ARCH_SHMOBILE || SUPERH || COMPILE_TEST
+	depends on EXTCON || !EXTCON # if EXTCON=m, USBHS cannot be built-in
 	default n
 	help
 	  Renesas USBHS is a discrete USB host and peripheral controller chip
diff --git a/drivers/usb/renesas_usbhs/common.c b/drivers/usb/renesas_usbhs/common.c
index 4cf77d3..0f7e850 100644
--- a/drivers/usb/renesas_usbhs/common.c
+++ b/drivers/usb/renesas_usbhs/common.c
@@ -276,6 +276,16 @@ int usbhs_set_device_config(struct usbhs_priv *priv, int devnum,
 }
 
 /*
+ *		interrupt functions
+ */
+void usbhs_xxxsts_clear(struct usbhs_priv *priv, u16 sts_reg, u16 bit)
+{
+	u16 pipe_mask = (u16)GENMASK(usbhs_get_dparam(priv, pipe_size), 0);
+
+	usbhs_write(priv, sts_reg, ~(1 << bit) & pipe_mask);
+}
+
+/*
  *		local functions
  */
 static void usbhsc_set_buswait(struct usbhs_priv *priv)
@@ -487,6 +497,15 @@ static struct renesas_usbhs_platform_info *usbhs_parse_dt(struct device *dev)
 	if (gpio > 0)
 		dparam->enable_gpio = gpio;
 
+	switch (dparam->type) {
+	case USBHS_TYPE_R8A7790:
+	case USBHS_TYPE_R8A7791:
+		dparam->has_usb_dmac = 1;
+		break;
+	default:
+		break;
+	}
+
 	return info;
 }
 
diff --git a/drivers/usb/renesas_usbhs/common.h b/drivers/usb/renesas_usbhs/common.h
index fc96e92..8c5fc12 100644
--- a/drivers/usb/renesas_usbhs/common.h
+++ b/drivers/usb/renesas_usbhs/common.h
@@ -193,6 +193,7 @@ struct usbhs_priv;
 #define TYPE_BULK	(1 << 14)
 #define TYPE_INT	(2 << 14)
 #define TYPE_ISO	(3 << 14)
+#define BFRE		(1 << 10)	/* BRDY Interrupt Operation Spec. */
 #define DBLB		(1 << 9)	/* Double Buffer Mode */
 #define SHTNAK		(1 << 7)	/* Pipe Disable in Transfer End */
 #define DIR_OUT		(1 << 4)	/* Transfer Direction */
@@ -216,6 +217,7 @@ struct usbhs_priv;
 #define	ACLRM		(1 << 9)	/* Buffer Auto-Clear Mode */
 #define SQCLR		(1 << 8)	/* Toggle Bit Clear */
 #define SQSET		(1 << 7)	/* Toggle Bit Set */
+#define SQMON		(1 << 6)	/* Toggle Bit Check */
 #define PBUSY		(1 << 5)	/* Pipe Busy */
 #define PID_MASK	(0x3)		/* Response PID */
 #define  PID_NAK	0
@@ -324,6 +326,11 @@ int usbhs_set_device_config(struct usbhs_priv *priv, int devnum, u16 upphub,
 			   u16 hubport, u16 speed);
 
 /*
+ * interrupt functions
+ */
+void usbhs_xxxsts_clear(struct usbhs_priv *priv, u16 sts_reg, u16 bit);
+
+/*
  * data
  */
 struct usbhs_priv *usbhs_pdev_to_priv(struct platform_device *pdev);
diff --git a/drivers/usb/renesas_usbhs/fifo.c b/drivers/usb/renesas_usbhs/fifo.c
index d891bff..8597cf9 100644
--- a/drivers/usb/renesas_usbhs/fifo.c
+++ b/drivers/usb/renesas_usbhs/fifo.c
@@ -813,7 +813,8 @@ static void xfer_work(struct work_struct *work)
 	desc->callback		= usbhsf_dma_complete;
 	desc->callback_param	= pipe;
 
-	if (dmaengine_submit(desc) < 0) {
+	pkt->cookie = dmaengine_submit(desc);
+	if (pkt->cookie < 0) {
 		dev_err(dev, "Failed to submit dma descriptor\n");
 		return;
 	}
@@ -822,10 +823,10 @@ static void xfer_work(struct work_struct *work)
 		fifo->name, usbhs_pipe_number(pipe), pkt->length, pkt->zero);
 
 	usbhs_pipe_running(pipe, 1);
-	usbhs_pipe_set_trans_count_if_bulk(pipe, pkt->trans);
-	usbhs_pipe_enable(pipe);
 	usbhsf_dma_start(pipe, fifo);
+	usbhs_pipe_set_trans_count_if_bulk(pipe, pkt->trans);
 	dma_async_issue_pending(chan);
+	usbhs_pipe_enable(pipe);
 }
 
 /*
@@ -838,6 +839,7 @@ static int usbhsf_dma_prepare_push(struct usbhs_pkt *pkt, int *is_done)
 	struct usbhs_fifo *fifo;
 	int len = pkt->length - pkt->actual;
 	int ret;
+	uintptr_t align_mask;
 
 	if (usbhs_pipe_is_busy(pipe))
 		return 0;
@@ -847,10 +849,14 @@ static int usbhsf_dma_prepare_push(struct usbhs_pkt *pkt, int *is_done)
 	    usbhs_pipe_is_dcp(pipe))
 		goto usbhsf_pio_prepare_push;
 
-	if (len & 0x7) /* 8byte alignment */
+	/* check data length if this driver don't use USB-DMAC */
+	if (!usbhs_get_dparam(priv, has_usb_dmac) && len & 0x7)
 		goto usbhsf_pio_prepare_push;
 
-	if ((uintptr_t)(pkt->buf + pkt->actual) & 0x7) /* 8byte alignment */
+	/* check buffer alignment */
+	align_mask = usbhs_get_dparam(priv, has_usb_dmac) ?
+					USBHS_USB_DMAC_XFER_SIZE - 1 : 0x7;
+	if ((uintptr_t)(pkt->buf + pkt->actual) & align_mask)
 		goto usbhsf_pio_prepare_push;
 
 	/* return at this time if the pipe is running */
@@ -924,7 +930,85 @@ struct usbhs_pkt_handle usbhs_fifo_dma_push_handler = {
 /*
  *		DMA pop handler
  */
-static int usbhsf_dma_try_pop(struct usbhs_pkt *pkt, int *is_done)
+
+static int usbhsf_dma_prepare_pop_with_rx_irq(struct usbhs_pkt *pkt,
+					      int *is_done)
+{
+	return usbhsf_prepare_pop(pkt, is_done);
+}
+
+static int usbhsf_dma_prepare_pop_with_usb_dmac(struct usbhs_pkt *pkt,
+						int *is_done)
+{
+	struct usbhs_pipe *pipe = pkt->pipe;
+	struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe);
+	struct usbhs_fifo *fifo;
+	int ret;
+
+	if (usbhs_pipe_is_busy(pipe))
+		return 0;
+
+	/* use PIO if packet is less than pio_dma_border or pipe is DCP */
+	if ((pkt->length < usbhs_get_dparam(priv, pio_dma_border)) ||
+	    usbhs_pipe_is_dcp(pipe))
+		goto usbhsf_pio_prepare_pop;
+
+	fifo = usbhsf_get_dma_fifo(priv, pkt);
+	if (!fifo)
+		goto usbhsf_pio_prepare_pop;
+
+	if ((uintptr_t)pkt->buf & (USBHS_USB_DMAC_XFER_SIZE - 1))
+		goto usbhsf_pio_prepare_pop;
+
+	usbhs_pipe_config_change_bfre(pipe, 1);
+
+	ret = usbhsf_fifo_select(pipe, fifo, 0);
+	if (ret < 0)
+		goto usbhsf_pio_prepare_pop;
+
+	if (usbhsf_dma_map(pkt) < 0)
+		goto usbhsf_pio_prepare_pop_unselect;
+
+	/* DMA */
+
+	/*
+	 * usbhs_fifo_dma_pop_handler :: prepare
+	 * enabled irq to come here.
+	 * but it is no longer needed for DMA. disable it.
+	 */
+	usbhsf_rx_irq_ctrl(pipe, 0);
+
+	pkt->trans = pkt->length;
+
+	INIT_WORK(&pkt->work, xfer_work);
+	schedule_work(&pkt->work);
+
+	return 0;
+
+usbhsf_pio_prepare_pop_unselect:
+	usbhsf_fifo_unselect(pipe, fifo);
+usbhsf_pio_prepare_pop:
+
+	/*
+	 * change handler to PIO
+	 */
+	pkt->handler = &usbhs_fifo_pio_pop_handler;
+	usbhs_pipe_config_change_bfre(pipe, 0);
+
+	return pkt->handler->prepare(pkt, is_done);
+}
+
+static int usbhsf_dma_prepare_pop(struct usbhs_pkt *pkt, int *is_done)
+{
+	struct usbhs_priv *priv = usbhs_pipe_to_priv(pkt->pipe);
+
+	if (usbhs_get_dparam(priv, has_usb_dmac))
+		return usbhsf_dma_prepare_pop_with_usb_dmac(pkt, is_done);
+	else
+		return usbhsf_dma_prepare_pop_with_rx_irq(pkt, is_done);
+}
+
+static int usbhsf_dma_try_pop_with_rx_irq(struct usbhs_pkt *pkt, int *is_done)
 {
 	struct usbhs_pipe *pipe = pkt->pipe;
 	struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe);
@@ -993,7 +1077,16 @@ usbhsf_pio_prepare_pop:
 	return pkt->handler->try_run(pkt, is_done);
 }
 
-static int usbhsf_dma_pop_done(struct usbhs_pkt *pkt, int *is_done)
+static int usbhsf_dma_try_pop(struct usbhs_pkt *pkt, int *is_done)
+{
+	struct usbhs_priv *priv = usbhs_pipe_to_priv(pkt->pipe);
+
+	BUG_ON(usbhs_get_dparam(priv, has_usb_dmac));
+
+	return usbhsf_dma_try_pop_with_rx_irq(pkt, is_done);
+}
+
+static int usbhsf_dma_pop_done_with_rx_irq(struct usbhs_pkt *pkt, int *is_done)
 {
 	struct usbhs_pipe *pipe = pkt->pipe;
 	int maxp = usbhs_pipe_get_maxpacket(pipe);
@@ -1017,8 +1110,68 @@ static int usbhsf_dma_pop_done(struct usbhs_pkt *pkt, int *is_done)
 	return 0;
 }
 
+static size_t usbhs_dma_calc_received_size(struct usbhs_pkt *pkt,
+					   struct dma_chan *chan, int dtln)
+{
+	struct usbhs_pipe *pipe = pkt->pipe;
+	struct dma_tx_state state;
+	size_t received_size;
+	int maxp = usbhs_pipe_get_maxpacket(pipe);
+
+	dmaengine_tx_status(chan, pkt->cookie, &state);
+	received_size = pkt->length - state.residue;
+
+	if (dtln) {
+		received_size -= USBHS_USB_DMAC_XFER_SIZE;
+		received_size &= ~(maxp - 1);
+		received_size += dtln;
+	}
+
+	return received_size;
+}
+
+static int usbhsf_dma_pop_done_with_usb_dmac(struct usbhs_pkt *pkt,
+					     int *is_done)
+{
+	struct usbhs_pipe *pipe = pkt->pipe;
+	struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe);
+	struct usbhs_fifo *fifo = usbhs_pipe_to_fifo(pipe);
+	struct dma_chan *chan = usbhsf_dma_chan_get(fifo, pkt);
+	int rcv_len;
+
+	/*
+	 * Since the driver disables rx_irq in DMA mode, the interrupt handler
+	 * cannot the BRDYSTS. So, the function clears it here because the
+	 * driver may use PIO mode next time.
+	 */
+	usbhs_xxxsts_clear(priv, BRDYSTS, usbhs_pipe_number(pipe));
+
+	rcv_len = usbhsf_fifo_rcv_len(priv, fifo);
+	usbhsf_fifo_clear(pipe, fifo);
+	pkt->actual = usbhs_dma_calc_received_size(pkt, chan, rcv_len);
+
+	usbhsf_dma_stop(pipe, fifo);
+	usbhsf_dma_unmap(pkt);
+	usbhsf_fifo_unselect(pipe, pipe->fifo);
+
+	/* The driver can assume the rx transaction is always "done" */
+	*is_done = 1;
+
+	return 0;
+}
+
+static int usbhsf_dma_pop_done(struct usbhs_pkt *pkt, int *is_done)
+{
+	struct usbhs_priv *priv = usbhs_pipe_to_priv(pkt->pipe);
+
+	if (usbhs_get_dparam(priv, has_usb_dmac))
+		return usbhsf_dma_pop_done_with_usb_dmac(pkt, is_done);
+	else
+		return usbhsf_dma_pop_done_with_rx_irq(pkt, is_done);
+}
+
 struct usbhs_pkt_handle usbhs_fifo_dma_pop_handler = {
-	.prepare	= usbhsf_prepare_pop,
+	.prepare	= usbhsf_dma_prepare_pop,
 	.try_run	= usbhsf_dma_try_pop,
 	.dma_done	= usbhsf_dma_pop_done
 };
@@ -1069,23 +1222,29 @@ static void usbhsf_dma_init_pdev(struct usbhs_fifo *fifo)
 					    &fifo->rx_slave);
 }
 
-static void usbhsf_dma_init_dt(struct device *dev, struct usbhs_fifo *fifo)
+static void usbhsf_dma_init_dt(struct device *dev, struct usbhs_fifo *fifo,
+			       int channel)
 {
-	fifo->tx_chan = dma_request_slave_channel_reason(dev, "tx");
+	char name[16];
+
+	snprintf(name, sizeof(name), "tx%d", channel);
+	fifo->tx_chan = dma_request_slave_channel_reason(dev, name);
 	if (IS_ERR(fifo->tx_chan))
 		fifo->tx_chan = NULL;
-	fifo->rx_chan = dma_request_slave_channel_reason(dev, "rx");
+
+	snprintf(name, sizeof(name), "rx%d", channel);
+	fifo->rx_chan = dma_request_slave_channel_reason(dev, name);
 	if (IS_ERR(fifo->rx_chan))
 		fifo->rx_chan = NULL;
 }
 
-static void usbhsf_dma_init(struct usbhs_priv *priv,
-			    struct usbhs_fifo *fifo)
+static void usbhsf_dma_init(struct usbhs_priv *priv, struct usbhs_fifo *fifo,
+			    int channel)
 {
 	struct device *dev = usbhs_priv_to_dev(priv);
 
 	if (dev->of_node)
-		usbhsf_dma_init_dt(dev, fifo);
+		usbhsf_dma_init_dt(dev, fifo, channel);
 	else
 		usbhsf_dma_init_pdev(fifo);
 
@@ -1231,7 +1390,7 @@ do {									\
 			usbhs_get_dparam(priv, d##channel##_tx_id);	\
 	fifo->rx_slave.shdma_slave.slave_id =				\
 			usbhs_get_dparam(priv, d##channel##_rx_id);	\
-	usbhsf_dma_init(priv, fifo);					\
+	usbhsf_dma_init(priv, fifo, channel);				\
 } while (0)
 
 #define USBHS_DFIFO_INIT(priv, fifo, channel)				\
diff --git a/drivers/usb/renesas_usbhs/fifo.h b/drivers/usb/renesas_usbhs/fifo.h
index f07037c1..04d3f8a 100644
--- a/drivers/usb/renesas_usbhs/fifo.h
+++ b/drivers/usb/renesas_usbhs/fifo.h
@@ -58,6 +58,7 @@ struct usbhs_pkt {
 		     struct usbhs_pkt *pkt);
 	struct work_struct work;
 	dma_addr_t dma;
+	dma_cookie_t cookie;
 	void *buf;
 	int length;
 	int trans;
diff --git a/drivers/usb/renesas_usbhs/mod_gadget.c b/drivers/usb/renesas_usbhs/mod_gadget.c
index e0384af..dc2aa32 100644
--- a/drivers/usb/renesas_usbhs/mod_gadget.c
+++ b/drivers/usb/renesas_usbhs/mod_gadget.c
@@ -119,18 +119,34 @@ struct usbhsg_recip_handle {
 /*
  *		queue push/pop
  */
-static void usbhsg_queue_pop(struct usbhsg_uep *uep,
-			     struct usbhsg_request *ureq,
-			     int status)
+static void __usbhsg_queue_pop(struct usbhsg_uep *uep,
+			       struct usbhsg_request *ureq,
+			       int status)
 {
 	struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep);
 	struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep);
 	struct device *dev = usbhsg_gpriv_to_dev(gpriv);
+	struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv);
 
 	dev_dbg(dev, "pipe %d : queue pop\n", usbhs_pipe_number(pipe));
 
 	ureq->req.status = status;
+	spin_unlock(usbhs_priv_to_lock(priv));
 	usb_gadget_giveback_request(&uep->ep, &ureq->req);
+	spin_lock(usbhs_priv_to_lock(priv));
+}
+
+static void usbhsg_queue_pop(struct usbhsg_uep *uep,
+			     struct usbhsg_request *ureq,
+			     int status)
+{
+	struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep);
+	struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv);
+	unsigned long flags;
+
+	usbhs_lock(priv, flags);
+	__usbhsg_queue_pop(uep, ureq, status);
+	usbhs_unlock(priv, flags);
 }
 
 static void usbhsg_queue_done(struct usbhs_priv *priv, struct usbhs_pkt *pkt)
diff --git a/drivers/usb/renesas_usbhs/mod_host.c b/drivers/usb/renesas_usbhs/mod_host.c
index 96eead6..bd05035 100644
--- a/drivers/usb/renesas_usbhs/mod_host.c
+++ b/drivers/usb/renesas_usbhs/mod_host.c
@@ -1229,7 +1229,7 @@ static int __usbhsh_hub_get_status(struct usbhsh_hpriv *hpriv,
 		break;
 
 	case GetHubDescriptor:
-		desc->bDescriptorType		= 0x29;
+		desc->bDescriptorType		= USB_DT_HUB;
 		desc->bHubContrCurrent		= 0;
 		desc->bNbrPorts			= roothub_id;
 		desc->bDescLength		= 9;
diff --git a/drivers/usb/renesas_usbhs/pipe.c b/drivers/usb/renesas_usbhs/pipe.c
index 007f45a..4f9c335 100644
--- a/drivers/usb/renesas_usbhs/pipe.c
+++ b/drivers/usb/renesas_usbhs/pipe.c
@@ -84,6 +84,17 @@ static void __usbhsp_pipe_xxx_set(struct usbhs_pipe *pipe,
 		usbhs_bset(priv, pipe_reg, mask, val);
 }
 
+static u16 __usbhsp_pipe_xxx_get(struct usbhs_pipe *pipe,
+				 u16 dcp_reg, u16 pipe_reg)
+{
+	struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe);
+
+	if (usbhs_pipe_is_dcp(pipe))
+		return usbhs_read(priv, dcp_reg);
+	else
+		return usbhs_read(priv, pipe_reg);
+}
+
 /*
  *		DCPCFG/PIPECFG functions
  */
@@ -92,6 +103,11 @@ static void usbhsp_pipe_cfg_set(struct usbhs_pipe *pipe, u16 mask, u16 val)
 	__usbhsp_pipe_xxx_set(pipe, DCPCFG, PIPECFG, mask, val);
 }
 
+static u16 usbhsp_pipe_cfg_get(struct usbhs_pipe *pipe)
+{
+	return __usbhsp_pipe_xxx_get(pipe, DCPCFG, PIPECFG);
+}
+
 /*
  *		PIPEnTRN/PIPEnTRE functions
  */
@@ -616,6 +632,11 @@ void usbhs_pipe_data_sequence(struct usbhs_pipe *pipe, int sequence)
 	usbhsp_pipectrl_set(pipe, mask, val);
 }
 
+static int usbhs_pipe_get_data_sequence(struct usbhs_pipe *pipe)
+{
+	return !!(usbhsp_pipectrl_get(pipe) & SQMON);
+}
+
 void usbhs_pipe_clear(struct usbhs_pipe *pipe)
 {
 	if (usbhs_pipe_is_dcp(pipe)) {
@@ -626,6 +647,24 @@ void usbhs_pipe_clear(struct usbhs_pipe *pipe)
 	}
 }
 
+void usbhs_pipe_config_change_bfre(struct usbhs_pipe *pipe, int enable)
+{
+	int sequence;
+
+	if (usbhs_pipe_is_dcp(pipe))
+		return;
+
+	usbhsp_pipe_select(pipe);
+	/* check if the driver needs to change the BFRE value */
+	if (!(enable ^ !!(usbhsp_pipe_cfg_get(pipe) & BFRE)))
+		return;
+
+	sequence = usbhs_pipe_get_data_sequence(pipe);
+	usbhsp_pipe_cfg_set(pipe, BFRE, enable ? BFRE : 0);
+	usbhs_pipe_clear(pipe);
+	usbhs_pipe_data_sequence(pipe, sequence);
+}
+
 static struct usbhs_pipe *usbhsp_get_pipe(struct usbhs_priv *priv, u32 type)
 {
 	struct usbhs_pipe *pos, *pipe;
diff --git a/drivers/usb/renesas_usbhs/pipe.h b/drivers/usb/renesas_usbhs/pipe.h
index d24a059..b0bc7b6 100644
--- a/drivers/usb/renesas_usbhs/pipe.h
+++ b/drivers/usb/renesas_usbhs/pipe.h
@@ -97,6 +97,7 @@ void usbhs_pipe_set_trans_count_if_bulk(struct usbhs_pipe *pipe, int len);
 void usbhs_pipe_select_fifo(struct usbhs_pipe *pipe, struct usbhs_fifo *fifo);
 void usbhs_pipe_config_update(struct usbhs_pipe *pipe, u16 devsel,
 			      u16 epnum, u16 maxp);
+void usbhs_pipe_config_change_bfre(struct usbhs_pipe *pipe, int enable);
 
 #define usbhs_pipe_sequence_data0(pipe)	usbhs_pipe_data_sequence(pipe, 0)
 #define usbhs_pipe_sequence_data1(pipe)	usbhs_pipe_data_sequence(pipe, 1)
diff --git a/drivers/usb/serial/bus.c b/drivers/usb/serial/bus.c
index 9374bd2..8936a83 100644
--- a/drivers/usb/serial/bus.c
+++ b/drivers/usb/serial/bus.c
@@ -38,56 +38,51 @@ static int usb_serial_device_match(struct device *dev,
 	return 0;
 }
 
-static ssize_t port_number_show(struct device *dev,
-				struct device_attribute *attr, char *buf)
-{
-	struct usb_serial_port *port = to_usb_serial_port(dev);
-
-	return sprintf(buf, "%d\n", port->port_number);
-}
-static DEVICE_ATTR_RO(port_number);
-
 static int usb_serial_device_probe(struct device *dev)
 {
 	struct usb_serial_driver *driver;
 	struct usb_serial_port *port;
+	struct device *tty_dev;
 	int retval = 0;
 	int minor;
 
 	port = to_usb_serial_port(dev);
-	if (!port) {
-		retval = -ENODEV;
-		goto exit;
-	}
+	if (!port)
+		return -ENODEV;
 
 	/* make sure suspend/resume doesn't race against port_probe */
 	retval = usb_autopm_get_interface(port->serial->interface);
 	if (retval)
-		goto exit;
+		return retval;
 
 	driver = port->serial->type;
 	if (driver->port_probe) {
 		retval = driver->port_probe(port);
 		if (retval)
-			goto exit_with_autopm;
+			goto err_autopm_put;
 	}
 
-	retval = device_create_file(dev, &dev_attr_port_number);
-	if (retval) {
-		if (driver->port_remove)
-			retval = driver->port_remove(port);
-		goto exit_with_autopm;
+	minor = port->minor;
+	tty_dev = tty_register_device(usb_serial_tty_driver, minor, dev);
+	if (IS_ERR(tty_dev)) {
+		retval = PTR_ERR(tty_dev);
+		goto err_port_remove;
 	}
 
-	minor = port->minor;
-	tty_register_device(usb_serial_tty_driver, minor, dev);
+	usb_autopm_put_interface(port->serial->interface);
+
 	dev_info(&port->serial->dev->dev,
 		 "%s converter now attached to ttyUSB%d\n",
 		 driver->description, minor);
 
-exit_with_autopm:
+	return 0;
+
+err_port_remove:
+	if (driver->port_remove)
+		driver->port_remove(port);
+err_autopm_put:
 	usb_autopm_put_interface(port->serial->interface);
-exit:
+
 	return retval;
 }
 
@@ -114,8 +109,6 @@ static int usb_serial_device_remove(struct device *dev)
 	minor = port->minor;
 	tty_unregister_device(usb_serial_tty_driver, minor);
 
-	device_remove_file(&port->dev, &dev_attr_port_number);
-
 	driver = port->serial->type;
 	if (driver->port_remove)
 		retval = driver->port_remove(port);
diff --git a/drivers/usb/serial/ch341.c b/drivers/usb/serial/ch341.c
index 2d72aa3..c73808f 100644
--- a/drivers/usb/serial/ch341.c
+++ b/drivers/usb/serial/ch341.c
@@ -84,6 +84,10 @@ struct ch341_private {
 	u8 line_status; /* active status of modem control inputs */
 };
 
+static void ch341_set_termios(struct tty_struct *tty,
+			      struct usb_serial_port *port,
+			      struct ktermios *old_termios);
+
 static int ch341_control_out(struct usb_device *dev, u8 request,
 			     u16 value, u16 index)
 {
@@ -309,26 +313,18 @@ static int ch341_open(struct tty_struct *tty, struct usb_serial_port *port)
 	struct ch341_private *priv = usb_get_serial_port_data(port);
 	int r;
 
-	priv->baud_rate = DEFAULT_BAUD_RATE;
-
 	r = ch341_configure(serial->dev, priv);
 	if (r)
 		goto out;
 
-	r = ch341_set_handshake(serial->dev, priv->line_control);
-	if (r)
-		goto out;
-
-	r = ch341_set_baudrate(serial->dev, priv);
-	if (r)
-		goto out;
+	if (tty)
+		ch341_set_termios(tty, port, NULL);
 
 	dev_dbg(&port->dev, "%s - submitting interrupt urb\n", __func__);
 	r = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
 	if (r) {
 		dev_err(&port->dev, "%s - failed to submit interrupt urb: %d\n",
 			__func__, r);
-		ch341_close(port);
 		goto out;
 	}
 
diff --git a/drivers/usb/serial/console.c b/drivers/usb/serial/console.c
index 29fa1c3..3806e70 100644
--- a/drivers/usb/serial/console.c
+++ b/drivers/usb/serial/console.c
@@ -14,6 +14,7 @@
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
 #include <linux/kernel.h>
+#include <linux/module.h>
 #include <linux/slab.h>
 #include <linux/tty.h>
 #include <linux/console.h>
@@ -144,6 +145,7 @@ static int usb_console_setup(struct console *co, char *options)
 			init_ldsem(&tty->ldisc_sem);
 			INIT_LIST_HEAD(&tty->tty_files);
 			kref_get(&tty->driver->kref);
+			__module_get(tty->driver->owner);
 			tty->ops = &usb_console_fake_tty_ops;
 			if (tty_init_termios(tty)) {
 				retval = -ENOMEM;
diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c
index f40c856..84ce2d7 100644
--- a/drivers/usb/serial/cp210x.c
+++ b/drivers/usb/serial/cp210x.c
@@ -147,6 +147,8 @@ static const struct usb_device_id id_table[] = {
 	{ USB_DEVICE(0x166A, 0x0305) }, /* Clipsal C-5000CT2 C-Bus Spectrum Colour Touchscreen */
 	{ USB_DEVICE(0x166A, 0x0401) }, /* Clipsal L51xx C-Bus Architectural Dimmer */
 	{ USB_DEVICE(0x166A, 0x0101) }, /* Clipsal 5560884 C-Bus Multi-room Audio Matrix Switcher */
+	{ USB_DEVICE(0x16C0, 0x09B0) }, /* Lunatico Seletek */
+	{ USB_DEVICE(0x16C0, 0x09B1) }, /* Lunatico Seletek */
 	{ USB_DEVICE(0x16D6, 0x0001) }, /* Jablotron serial interface */
 	{ USB_DEVICE(0x16DC, 0x0010) }, /* W-IE-NE-R Plein & Baus GmbH PL512 Power Supply */
 	{ USB_DEVICE(0x16DC, 0x0011) }, /* W-IE-NE-R Plein & Baus GmbH RCM Remote Control for MARATON Power Supply */
diff --git a/drivers/usb/serial/f81232.c b/drivers/usb/serial/f81232.c
index c5dc233..972f5a5 100644
--- a/drivers/usb/serial/f81232.c
+++ b/drivers/usb/serial/f81232.c
@@ -19,10 +19,11 @@
 #include <linux/serial.h>
 #include <linux/module.h>
 #include <linux/moduleparam.h>
-#include <linux/spinlock.h>
+#include <linux/mutex.h>
 #include <linux/uaccess.h>
 #include <linux/usb.h>
 #include <linux/usb/serial.h>
+#include <linux/serial_reg.h>
 
 static const struct usb_device_id id_table[] = {
 	{ USB_DEVICE(0x1934, 0x0706) },
@@ -30,37 +31,218 @@ static const struct usb_device_id id_table[] = {
 };
 MODULE_DEVICE_TABLE(usb, id_table);
 
-#define CONTROL_DTR			0x01
-#define CONTROL_RTS			0x02
+/* Maximum baudrate for F81232 */
+#define F81232_MAX_BAUDRATE		115200
 
-#define UART_STATE			0x08
-#define UART_STATE_TRANSIENT_MASK	0x74
-#define UART_DCD			0x01
-#define UART_DSR			0x02
-#define UART_BREAK_ERROR		0x04
-#define UART_RING			0x08
-#define UART_FRAME_ERROR		0x10
-#define UART_PARITY_ERROR		0x20
-#define UART_OVERRUN_ERROR		0x40
-#define UART_CTS			0x80
+/* USB Control EP parameter */
+#define F81232_REGISTER_REQUEST		0xa0
+#define F81232_GET_REGISTER		0xc0
+#define F81232_SET_REGISTER		0x40
+
+#define SERIAL_BASE_ADDRESS		0x0120
+#define RECEIVE_BUFFER_REGISTER		(0x00 + SERIAL_BASE_ADDRESS)
+#define INTERRUPT_ENABLE_REGISTER	(0x01 + SERIAL_BASE_ADDRESS)
+#define FIFO_CONTROL_REGISTER		(0x02 + SERIAL_BASE_ADDRESS)
+#define LINE_CONTROL_REGISTER		(0x03 + SERIAL_BASE_ADDRESS)
+#define MODEM_CONTROL_REGISTER		(0x04 + SERIAL_BASE_ADDRESS)
+#define MODEM_STATUS_REGISTER		(0x06 + SERIAL_BASE_ADDRESS)
 
 struct f81232_private {
-	spinlock_t lock;
-	u8 line_control;
-	u8 line_status;
+	struct mutex lock;
+	u8 modem_control;
+	u8 modem_status;
+	struct work_struct interrupt_work;
+	struct usb_serial_port *port;
 };
 
+static int calc_baud_divisor(speed_t baudrate)
+{
+	return DIV_ROUND_CLOSEST(F81232_MAX_BAUDRATE, baudrate);
+}
+
+static int f81232_get_register(struct usb_serial_port *port, u16 reg, u8 *val)
+{
+	int status;
+	u8 *tmp;
+	struct usb_device *dev = port->serial->dev;
+
+	tmp = kmalloc(sizeof(*val), GFP_KERNEL);
+	if (!tmp)
+		return -ENOMEM;
+
+	status = usb_control_msg(dev,
+				usb_rcvctrlpipe(dev, 0),
+				F81232_REGISTER_REQUEST,
+				F81232_GET_REGISTER,
+				reg,
+				0,
+				tmp,
+				sizeof(*val),
+				USB_CTRL_GET_TIMEOUT);
+	if (status != sizeof(*val)) {
+		dev_err(&port->dev, "%s failed status: %d\n", __func__, status);
+
+		if (status < 0)
+			status = usb_translate_errors(status);
+		else
+			status = -EIO;
+	} else {
+		status = 0;
+		*val = *tmp;
+	}
+
+	kfree(tmp);
+	return status;
+}
+
+static int f81232_set_register(struct usb_serial_port *port, u16 reg, u8 val)
+{
+	int status;
+	u8 *tmp;
+	struct usb_device *dev = port->serial->dev;
+
+	tmp = kmalloc(sizeof(val), GFP_KERNEL);
+	if (!tmp)
+		return -ENOMEM;
+
+	*tmp = val;
+
+	status = usb_control_msg(dev,
+				usb_sndctrlpipe(dev, 0),
+				F81232_REGISTER_REQUEST,
+				F81232_SET_REGISTER,
+				reg,
+				0,
+				tmp,
+				sizeof(val),
+				USB_CTRL_SET_TIMEOUT);
+	if (status != sizeof(val)) {
+		dev_err(&port->dev, "%s failed status: %d\n", __func__, status);
+
+		if (status < 0)
+			status = usb_translate_errors(status);
+		else
+			status = -EIO;
+	} else {
+		status = 0;
+	}
+
+	kfree(tmp);
+	return status;
+}
+
+static void f81232_read_msr(struct usb_serial_port *port)
+{
+	int status;
+	u8 current_msr;
+	struct tty_struct *tty;
+	struct f81232_private *priv = usb_get_serial_port_data(port);
+
+	mutex_lock(&priv->lock);
+	status = f81232_get_register(port, MODEM_STATUS_REGISTER,
+			&current_msr);
+	if (status) {
+		dev_err(&port->dev, "%s fail, status: %d\n", __func__, status);
+		mutex_unlock(&priv->lock);
+		return;
+	}
+
+	if (!(current_msr & UART_MSR_ANY_DELTA)) {
+		mutex_unlock(&priv->lock);
+		return;
+	}
+
+	priv->modem_status = current_msr;
+
+	if (current_msr & UART_MSR_DCTS)
+		port->icount.cts++;
+	if (current_msr & UART_MSR_DDSR)
+		port->icount.dsr++;
+	if (current_msr & UART_MSR_TERI)
+		port->icount.rng++;
+	if (current_msr & UART_MSR_DDCD) {
+		port->icount.dcd++;
+		tty = tty_port_tty_get(&port->port);
+		if (tty) {
+			usb_serial_handle_dcd_change(port, tty,
+					current_msr & UART_MSR_DCD);
+
+			tty_kref_put(tty);
+		}
+	}
+
+	wake_up_interruptible(&port->port.delta_msr_wait);
+	mutex_unlock(&priv->lock);
+}
+
+static int f81232_set_mctrl(struct usb_serial_port *port,
+					   unsigned int set, unsigned int clear)
+{
+	u8 val;
+	int status;
+	struct f81232_private *priv = usb_get_serial_port_data(port);
+
+	if (((set | clear) & (TIOCM_DTR | TIOCM_RTS)) == 0)
+		return 0;	/* no change */
+
+	/* 'set' takes precedence over 'clear' */
+	clear &= ~set;
+
+	/* force enable interrupt with OUT2 */
+	mutex_lock(&priv->lock);
+	val = UART_MCR_OUT2 | priv->modem_control;
+
+	if (clear & TIOCM_DTR)
+		val &= ~UART_MCR_DTR;
+
+	if (clear & TIOCM_RTS)
+		val &= ~UART_MCR_RTS;
+
+	if (set & TIOCM_DTR)
+		val |= UART_MCR_DTR;
+
+	if (set & TIOCM_RTS)
+		val |= UART_MCR_RTS;
+
+	dev_dbg(&port->dev, "%s new:%02x old:%02x\n", __func__,
+			val, priv->modem_control);
+
+	status = f81232_set_register(port, MODEM_CONTROL_REGISTER, val);
+	if (status) {
+		dev_err(&port->dev, "%s set MCR status < 0\n", __func__);
+		mutex_unlock(&priv->lock);
+		return status;
+	}
+
+	priv->modem_control = val;
+	mutex_unlock(&priv->lock);
+
+	return 0;
+}
+
 static void f81232_update_line_status(struct usb_serial_port *port,
 				      unsigned char *data,
-				      unsigned int actual_length)
+				      size_t actual_length)
 {
-	/*
-	 * FIXME: Update port->icount, and call
-	 *
-	 *		wake_up_interruptible(&port->port.delta_msr_wait);
-	 *
-	 *	  on MSR changes.
-	 */
+	struct f81232_private *priv = usb_get_serial_port_data(port);
+
+	if (!actual_length)
+		return;
+
+	switch (data[0] & 0x07) {
+	case 0x00: /* msr change */
+		dev_dbg(&port->dev, "IIR: MSR Change: %02x\n", data[0]);
+		schedule_work(&priv->interrupt_work);
+		break;
+	case 0x02: /* tx-empty */
+		break;
+	case 0x04: /* rx data available */
+		break;
+	case 0x06: /* lsr change */
+		/* we can forget it. the LSR will read from bulk-in */
+		dev_dbg(&port->dev, "IIR: LSR Change: %02x\n", data[0]);
+		break;
+	}
 }
 
 static void f81232_read_int_callback(struct urb *urb)
@@ -104,55 +286,55 @@ exit:
 static void f81232_process_read_urb(struct urb *urb)
 {
 	struct usb_serial_port *port = urb->context;
-	struct f81232_private *priv = usb_get_serial_port_data(port);
 	unsigned char *data = urb->transfer_buffer;
-	char tty_flag = TTY_NORMAL;
-	unsigned long flags;
-	u8 line_status;
-	int i;
-
-	/* update line status */
-	spin_lock_irqsave(&priv->lock, flags);
-	line_status = priv->line_status;
-	priv->line_status &= ~UART_STATE_TRANSIENT_MASK;
-	spin_unlock_irqrestore(&priv->lock, flags);
-
-	if (!urb->actual_length)
+	char tty_flag;
+	unsigned int i;
+	u8 lsr;
+
+	/*
+	 * When opening the port we get a 1-byte packet with the current LSR,
+	 * which we discard.
+	 */
+	if ((urb->actual_length < 2) || (urb->actual_length % 2))
 		return;
 
-	/* break takes precedence over parity, */
-	/* which takes precedence over framing errors */
-	if (line_status & UART_BREAK_ERROR)
-		tty_flag = TTY_BREAK;
-	else if (line_status & UART_PARITY_ERROR)
-		tty_flag = TTY_PARITY;
-	else if (line_status & UART_FRAME_ERROR)
-		tty_flag = TTY_FRAME;
-	dev_dbg(&port->dev, "%s - tty_flag = %d\n", __func__, tty_flag);
-
-	/* overrun is special, not associated with a char */
-	if (line_status & UART_OVERRUN_ERROR)
-		tty_insert_flip_char(&port->port, 0, TTY_OVERRUN);
-
-	if (port->port.console && port->sysrq) {
-		for (i = 0; i < urb->actual_length; ++i)
-			if (!usb_serial_handle_sysrq_char(port, data[i]))
-				tty_insert_flip_char(&port->port, data[i],
-						tty_flag);
-	} else {
-		tty_insert_flip_string_fixed_flag(&port->port, data, tty_flag,
-							urb->actual_length);
+	/* bulk-in data: [LSR(1Byte)+DATA(1Byte)][LSR(1Byte)+DATA(1Byte)]... */
+
+	for (i = 0; i < urb->actual_length; i += 2) {
+		tty_flag = TTY_NORMAL;
+		lsr = data[i];
+
+		if (lsr & UART_LSR_BRK_ERROR_BITS) {
+			if (lsr & UART_LSR_BI) {
+				tty_flag = TTY_BREAK;
+				port->icount.brk++;
+				usb_serial_handle_break(port);
+			} else if (lsr & UART_LSR_PE) {
+				tty_flag = TTY_PARITY;
+				port->icount.parity++;
+			} else if (lsr & UART_LSR_FE) {
+				tty_flag = TTY_FRAME;
+				port->icount.frame++;
+			}
+
+			if (lsr & UART_LSR_OE) {
+				port->icount.overrun++;
+				tty_insert_flip_char(&port->port, 0,
+						TTY_OVERRUN);
+			}
+		}
+
+		if (port->port.console && port->sysrq) {
+			if (usb_serial_handle_sysrq_char(port, data[i + 1]))
+				continue;
+		}
+
+		tty_insert_flip_char(&port->port, data[i + 1], tty_flag);
 	}
 
 	tty_flip_buffer_push(&port->port);
 }
 
-static int set_control_lines(struct usb_device *dev, u8 value)
-{
-	/* FIXME - Stubbed out for now */
-	return 0;
-}
-
 static void f81232_break_ctl(struct tty_struct *tty, int break_state)
 {
 	/* FIXME - Stubbed out for now */
@@ -164,37 +346,198 @@ static void f81232_break_ctl(struct tty_struct *tty, int break_state)
 	 */
 }
 
+static void f81232_set_baudrate(struct usb_serial_port *port, speed_t baudrate)
+{
+	u8 lcr;
+	int divisor;
+	int status = 0;
+
+	divisor = calc_baud_divisor(baudrate);
+
+	status = f81232_get_register(port, LINE_CONTROL_REGISTER,
+			 &lcr); /* get LCR */
+	if (status) {
+		dev_err(&port->dev, "%s failed to get LCR: %d\n",
+			__func__, status);
+		return;
+	}
+
+	status = f81232_set_register(port, LINE_CONTROL_REGISTER,
+			 lcr | UART_LCR_DLAB); /* Enable DLAB */
+	if (status) {
+		dev_err(&port->dev, "%s failed to set DLAB: %d\n",
+			__func__, status);
+		return;
+	}
+
+	status = f81232_set_register(port, RECEIVE_BUFFER_REGISTER,
+			 divisor & 0x00ff); /* low */
+	if (status) {
+		dev_err(&port->dev, "%s failed to set baudrate MSB: %d\n",
+			__func__, status);
+		goto reapply_lcr;
+	}
+
+	status = f81232_set_register(port, INTERRUPT_ENABLE_REGISTER,
+			 (divisor & 0xff00) >> 8); /* high */
+	if (status) {
+		dev_err(&port->dev, "%s failed to set baudrate LSB: %d\n",
+			__func__, status);
+	}
+
+reapply_lcr:
+	status = f81232_set_register(port, LINE_CONTROL_REGISTER,
+			lcr & ~UART_LCR_DLAB);
+	if (status) {
+		dev_err(&port->dev, "%s failed to set DLAB: %d\n",
+			__func__, status);
+	}
+}
+
+static int f81232_port_enable(struct usb_serial_port *port)
+{
+	u8 val;
+	int status;
+
+	/* fifo on, trigger8, clear TX/RX*/
+	val = UART_FCR_TRIGGER_8 | UART_FCR_ENABLE_FIFO | UART_FCR_CLEAR_RCVR |
+			UART_FCR_CLEAR_XMIT;
+
+	status = f81232_set_register(port, FIFO_CONTROL_REGISTER, val);
+	if (status) {
+		dev_err(&port->dev, "%s failed to set FCR: %d\n",
+			__func__, status);
+		return status;
+	}
+
+	/* MSR Interrupt only, LSR will read from Bulk-in odd byte */
+	status = f81232_set_register(port, INTERRUPT_ENABLE_REGISTER,
+			UART_IER_MSI);
+	if (status) {
+		dev_err(&port->dev, "%s failed to set IER: %d\n",
+			__func__, status);
+		return status;
+	}
+
+	return 0;
+}
+
+static int f81232_port_disable(struct usb_serial_port *port)
+{
+	int status;
+
+	status = f81232_set_register(port, INTERRUPT_ENABLE_REGISTER, 0);
+	if (status) {
+		dev_err(&port->dev, "%s failed to set IER: %d\n",
+			__func__, status);
+		return status;
+	}
+
+	return 0;
+}
+
 static void f81232_set_termios(struct tty_struct *tty,
 		struct usb_serial_port *port, struct ktermios *old_termios)
 {
-	/* FIXME - Stubbed out for now */
+	u8 new_lcr = 0;
+	int status = 0;
+	speed_t baudrate;
 
 	/* Don't change anything if nothing has changed */
 	if (old_termios && !tty_termios_hw_change(&tty->termios, old_termios))
 		return;
 
-	/* Do the real work here... */
-	if (old_termios)
-		tty_termios_copy_hw(&tty->termios, old_termios);
+	if (C_BAUD(tty) == B0)
+		f81232_set_mctrl(port, 0, TIOCM_DTR | TIOCM_RTS);
+	else if (old_termios && (old_termios->c_cflag & CBAUD) == B0)
+		f81232_set_mctrl(port, TIOCM_DTR | TIOCM_RTS, 0);
+
+	baudrate = tty_get_baud_rate(tty);
+	if (baudrate > 0) {
+		if (baudrate > F81232_MAX_BAUDRATE) {
+			baudrate = F81232_MAX_BAUDRATE;
+			tty_encode_baud_rate(tty, baudrate, baudrate);
+		}
+		f81232_set_baudrate(port, baudrate);
+	}
+
+	if (C_PARENB(tty)) {
+		new_lcr |= UART_LCR_PARITY;
+
+		if (!C_PARODD(tty))
+			new_lcr |= UART_LCR_EPAR;
+
+		if (C_CMSPAR(tty))
+			new_lcr |= UART_LCR_SPAR;
+	}
+
+	if (C_CSTOPB(tty))
+		new_lcr |= UART_LCR_STOP;
+
+	switch (C_CSIZE(tty)) {
+	case CS5:
+		new_lcr |= UART_LCR_WLEN5;
+		break;
+	case CS6:
+		new_lcr |= UART_LCR_WLEN6;
+		break;
+	case CS7:
+		new_lcr |= UART_LCR_WLEN7;
+		break;
+	default:
+	case CS8:
+		new_lcr |= UART_LCR_WLEN8;
+		break;
+	}
+
+	status = f81232_set_register(port, LINE_CONTROL_REGISTER, new_lcr);
+	if (status) {
+		dev_err(&port->dev, "%s failed to set LCR: %d\n",
+			__func__, status);
+	}
 }
 
 static int f81232_tiocmget(struct tty_struct *tty)
 {
-	/* FIXME - Stubbed out for now */
-	return 0;
+	int r;
+	struct usb_serial_port *port = tty->driver_data;
+	struct f81232_private *port_priv = usb_get_serial_port_data(port);
+	u8 mcr, msr;
+
+	/* force get current MSR changed state */
+	f81232_read_msr(port);
+
+	mutex_lock(&port_priv->lock);
+	mcr = port_priv->modem_control;
+	msr = port_priv->modem_status;
+	mutex_unlock(&port_priv->lock);
+
+	r = (mcr & UART_MCR_DTR ? TIOCM_DTR : 0) |
+		(mcr & UART_MCR_RTS ? TIOCM_RTS : 0) |
+		(msr & UART_MSR_CTS ? TIOCM_CTS : 0) |
+		(msr & UART_MSR_DCD ? TIOCM_CAR : 0) |
+		(msr & UART_MSR_RI ? TIOCM_RI : 0) |
+		(msr & UART_MSR_DSR ? TIOCM_DSR : 0);
+
+	return r;
 }
 
 static int f81232_tiocmset(struct tty_struct *tty,
 			unsigned int set, unsigned int clear)
 {
-	/* FIXME - Stubbed out for now */
-	return 0;
+	struct usb_serial_port *port = tty->driver_data;
+
+	return f81232_set_mctrl(port, set, clear);
 }
 
 static int f81232_open(struct tty_struct *tty, struct usb_serial_port *port)
 {
 	int result;
 
+	result = f81232_port_enable(port);
+	if (result)
+		return result;
+
 	/* Setup termios */
 	if (tty)
 		f81232_set_termios(tty, port, NULL);
@@ -217,59 +560,73 @@ static int f81232_open(struct tty_struct *tty, struct usb_serial_port *port)
 
 static void f81232_close(struct usb_serial_port *port)
 {
+	f81232_port_disable(port);
 	usb_serial_generic_close(port);
 	usb_kill_urb(port->interrupt_in_urb);
 }
 
 static void f81232_dtr_rts(struct usb_serial_port *port, int on)
 {
-	struct f81232_private *priv = usb_get_serial_port_data(port);
-	unsigned long flags;
-	u8 control;
-
-	spin_lock_irqsave(&priv->lock, flags);
-	/* Change DTR and RTS */
 	if (on)
-		priv->line_control |= (CONTROL_DTR | CONTROL_RTS);
+		f81232_set_mctrl(port, TIOCM_DTR | TIOCM_RTS, 0);
 	else
-		priv->line_control &= ~(CONTROL_DTR | CONTROL_RTS);
-	control = priv->line_control;
-	spin_unlock_irqrestore(&priv->lock, flags);
-	set_control_lines(port->serial->dev, control);
+		f81232_set_mctrl(port, 0, TIOCM_DTR | TIOCM_RTS);
 }
 
 static int f81232_carrier_raised(struct usb_serial_port *port)
 {
+	u8 msr;
 	struct f81232_private *priv = usb_get_serial_port_data(port);
-	if (priv->line_status & UART_DCD)
+
+	mutex_lock(&priv->lock);
+	msr = priv->modem_status;
+	mutex_unlock(&priv->lock);
+
+	if (msr & UART_MSR_DCD)
 		return 1;
 	return 0;
 }
 
+static int f81232_get_serial_info(struct usb_serial_port *port,
+		unsigned long arg)
+{
+	struct serial_struct ser;
+
+	memset(&ser, 0, sizeof(ser));
+
+	ser.type = PORT_16550A;
+	ser.line = port->minor;
+	ser.port = port->port_number;
+	ser.baud_base = F81232_MAX_BAUDRATE;
+
+	if (copy_to_user((void __user *)arg, &ser, sizeof(ser)))
+		return -EFAULT;
+
+	return 0;
+}
+
 static int f81232_ioctl(struct tty_struct *tty,
 			unsigned int cmd, unsigned long arg)
 {
-	struct serial_struct ser;
 	struct usb_serial_port *port = tty->driver_data;
 
 	switch (cmd) {
 	case TIOCGSERIAL:
-		memset(&ser, 0, sizeof ser);
-		ser.type = PORT_16654;
-		ser.line = port->minor;
-		ser.port = port->port_number;
-		ser.baud_base = 460800;
-
-		if (copy_to_user((void __user *)arg, &ser, sizeof ser))
-			return -EFAULT;
-
-		return 0;
+		return f81232_get_serial_info(port, arg);
 	default:
 		break;
 	}
 	return -ENOIOCTLCMD;
 }
 
+static void  f81232_interrupt_work(struct work_struct *work)
+{
+	struct f81232_private *priv =
+		container_of(work, struct f81232_private, interrupt_work);
+
+	f81232_read_msr(priv->port);
+}
+
 static int f81232_port_probe(struct usb_serial_port *port)
 {
 	struct f81232_private *priv;
@@ -278,11 +635,13 @@ static int f81232_port_probe(struct usb_serial_port *port)
 	if (!priv)
 		return -ENOMEM;
 
-	spin_lock_init(&priv->lock);
+	mutex_init(&priv->lock);
+	INIT_WORK(&priv->interrupt_work,  f81232_interrupt_work);
 
 	usb_set_serial_port_data(port, priv);
 
 	port->port.drain_delay = 256;
+	priv->port = port;
 
 	return 0;
 }
@@ -308,7 +667,7 @@ static struct usb_serial_driver f81232_device = {
 	.bulk_out_size =	256,
 	.open =			f81232_open,
 	.close =		f81232_close,
-	.dtr_rts = 		f81232_dtr_rts,
+	.dtr_rts =		f81232_dtr_rts,
 	.carrier_raised =	f81232_carrier_raised,
 	.ioctl =		f81232_ioctl,
 	.break_ctl =		f81232_break_ctl,
@@ -330,5 +689,6 @@ static struct usb_serial_driver * const serial_drivers[] = {
 module_usb_serial_driver(serial_drivers, id_table);
 
 MODULE_DESCRIPTION("Fintek F81232 USB to serial adaptor driver");
-MODULE_AUTHOR("Greg Kroah-Hartman <gregkh@linuxfoundation.org");
+MODULE_AUTHOR("Greg Kroah-Hartman <gregkh@linuxfoundation.org>");
+MODULE_AUTHOR("Peter Hong <peter_hong@fintek.com.tw>");
 MODULE_LICENSE("GPL v2");
diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index 1ebb351..8eb68a3 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -604,6 +604,7 @@ static const struct usb_device_id id_table_combined[] = {
 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
 	{ USB_DEVICE(FTDI_VID, FTDI_NT_ORIONLXM_PID),
 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
+	{ USB_DEVICE(FTDI_VID, FTDI_SYNAPSE_SS200_PID) },
 	/*
 	 * ELV devices:
 	 */
@@ -799,6 +800,8 @@ static const struct usb_device_id id_table_combined[] = {
 	{ USB_DEVICE(FTDI_VID, FTDI_ELSTER_UNICOM_PID) },
 	{ USB_DEVICE(FTDI_VID, FTDI_PROPOX_JTAGCABLEII_PID) },
 	{ USB_DEVICE(FTDI_VID, FTDI_PROPOX_ISPCABLEIII_PID) },
+	{ USB_DEVICE(FTDI_VID, CYBER_CORTEX_AV_PID),
+		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
 	{ USB_DEVICE(OLIMEX_VID, OLIMEX_ARM_USB_OCD_PID),
 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
 	{ USB_DEVICE(OLIMEX_VID, OLIMEX_ARM_USB_OCD_H_PID),
@@ -978,6 +981,23 @@ static const struct usb_device_id id_table_combined[] = {
 	{ USB_DEVICE_INTERFACE_NUMBER(INFINEON_VID, INFINEON_TRIBOARD_PID, 1) },
 	/* GE Healthcare devices */
 	{ USB_DEVICE(GE_HEALTHCARE_VID, GE_HEALTHCARE_NEMO_TRACKER_PID) },
+	/* Active Research (Actisense) devices */
+	{ USB_DEVICE(FTDI_VID, ACTISENSE_NDC_PID) },
+	{ USB_DEVICE(FTDI_VID, ACTISENSE_USG_PID) },
+	{ USB_DEVICE(FTDI_VID, ACTISENSE_NGT_PID) },
+	{ USB_DEVICE(FTDI_VID, ACTISENSE_NGW_PID) },
+	{ USB_DEVICE(FTDI_VID, ACTISENSE_D9AC_PID) },
+	{ USB_DEVICE(FTDI_VID, ACTISENSE_D9AD_PID) },
+	{ USB_DEVICE(FTDI_VID, ACTISENSE_D9AE_PID) },
+	{ USB_DEVICE(FTDI_VID, ACTISENSE_D9AF_PID) },
+	{ USB_DEVICE(FTDI_VID, CHETCO_SEAGAUGE_PID) },
+	{ USB_DEVICE(FTDI_VID, CHETCO_SEASWITCH_PID) },
+	{ USB_DEVICE(FTDI_VID, CHETCO_SEASMART_NMEA2000_PID) },
+	{ USB_DEVICE(FTDI_VID, CHETCO_SEASMART_ETHERNET_PID) },
+	{ USB_DEVICE(FTDI_VID, CHETCO_SEASMART_WIFI_PID) },
+	{ USB_DEVICE(FTDI_VID, CHETCO_SEASMART_DISPLAY_PID) },
+	{ USB_DEVICE(FTDI_VID, CHETCO_SEASMART_LITE_PID) },
+	{ USB_DEVICE(FTDI_VID, CHETCO_SEASMART_ANALOG_PID) },
 	{ }					/* Terminating entry */
 };
 
@@ -1864,8 +1884,12 @@ static int ftdi_8u2232c_probe(struct usb_serial *serial)
 {
 	struct usb_device *udev = serial->dev;
 
-	if ((udev->manufacturer && !strcmp(udev->manufacturer, "CALAO Systems")) ||
-	    (udev->product && !strcmp(udev->product, "BeagleBone/XDS100V2")))
+	if (udev->manufacturer && !strcmp(udev->manufacturer, "CALAO Systems"))
+		return ftdi_jtag_probe(serial);
+
+	if (udev->product &&
+		(!strcmp(udev->product, "BeagleBone/XDS100V2") ||
+		 !strcmp(udev->product, "SNAP Connect E10")))
 		return ftdi_jtag_probe(serial);
 
 	return 0;
diff --git a/drivers/usb/serial/ftdi_sio_ids.h b/drivers/usb/serial/ftdi_sio_ids.h
index e52409c..4e4f46f 100644
--- a/drivers/usb/serial/ftdi_sio_ids.h
+++ b/drivers/usb/serial/ftdi_sio_ids.h
@@ -38,6 +38,9 @@
 
 #define FTDI_LUMEL_PD12_PID	0x6002
 
+/* Cyber Cortex AV by Fabulous Silicon (http://fabuloussilicon.com) */
+#define CYBER_CORTEX_AV_PID	0x8698
+
 /*
  * Marvell OpenRD Base, Client
  * http://www.open-rd.org
@@ -558,6 +561,12 @@
  */
 #define FTDI_NT_ORIONLXM_PID	0x7c90	/* OrionLXm Substation Automation Platform */
 
+/*
+ * Synapse Wireless product ids (FTDI_VID)
+ * http://www.synapse-wireless.com
+ */
+#define FTDI_SYNAPSE_SS200_PID 0x9090 /* SS200 - SNAP Stick 200 */
+
 
 /********************************/
 /** third-party VID/PID combos **/
@@ -1438,3 +1447,23 @@
  */
 #define GE_HEALTHCARE_VID		0x1901
 #define GE_HEALTHCARE_NEMO_TRACKER_PID	0x0015
+
+/*
+ * Active Research (Actisense) devices
+ */
+#define ACTISENSE_NDC_PID		0xD9A8 /* NDC USB Serial Adapter */
+#define ACTISENSE_USG_PID		0xD9A9 /* USG USB Serial Adapter */
+#define ACTISENSE_NGT_PID		0xD9AA /* NGT NMEA2000 Interface */
+#define ACTISENSE_NGW_PID		0xD9AB /* NGW NMEA2000 Gateway */
+#define ACTISENSE_D9AC_PID		0xD9AC /* Actisense Reserved */
+#define ACTISENSE_D9AD_PID		0xD9AD /* Actisense Reserved */
+#define ACTISENSE_D9AE_PID		0xD9AE /* Actisense Reserved */
+#define ACTISENSE_D9AF_PID		0xD9AF /* Actisense Reserved */
+#define CHETCO_SEAGAUGE_PID		0xA548 /* SeaGauge USB Adapter */
+#define CHETCO_SEASWITCH_PID		0xA549 /* SeaSwitch USB Adapter */
+#define CHETCO_SEASMART_NMEA2000_PID	0xA54A /* SeaSmart NMEA2000 Gateway */
+#define CHETCO_SEASMART_ETHERNET_PID	0xA54B /* SeaSmart Ethernet Gateway */
+#define CHETCO_SEASMART_WIFI_PID	0xA5AC /* SeaSmart Wifi Gateway */
+#define CHETCO_SEASMART_DISPLAY_PID	0xA5AD /* SeaSmart NMEA2000 Display */
+#define CHETCO_SEASMART_LITE_PID	0xA5AE /* SeaSmart Lite USB Adapter */
+#define CHETCO_SEASMART_ANALOG_PID	0xA5AF /* SeaSmart Analog Adapter */
diff --git a/drivers/usb/serial/generic.c b/drivers/usb/serial/generic.c
index ccf1df7..54e170d 100644
--- a/drivers/usb/serial/generic.c
+++ b/drivers/usb/serial/generic.c
@@ -258,7 +258,8 @@ void usb_serial_generic_wait_until_sent(struct tty_struct *tty, long timeout)
 	 * character or at least one jiffy.
 	 */
 	period = max_t(unsigned long, (10 * HZ / bps), 1);
-	period = min_t(unsigned long, period, timeout);
+	if (timeout)
+		period = min_t(unsigned long, period, timeout);
 
 	dev_dbg(&port->dev, "%s - timeout = %u ms, period = %u ms\n",
 					__func__, jiffies_to_msecs(timeout),
@@ -268,7 +269,7 @@ void usb_serial_generic_wait_until_sent(struct tty_struct *tty, long timeout)
 		schedule_timeout_interruptible(period);
 		if (signal_pending(current))
 			break;
-		if (time_after(jiffies, expire))
+		if (timeout && time_after(jiffies, expire))
 			break;
 	}
 }
diff --git a/drivers/usb/serial/keyspan_pda.c b/drivers/usb/serial/keyspan_pda.c
index dd97d8b..4f7e072 100644
--- a/drivers/usb/serial/keyspan_pda.c
+++ b/drivers/usb/serial/keyspan_pda.c
@@ -61,6 +61,7 @@ struct keyspan_pda_private {
 /* For Xircom PGSDB9 and older Entrega version of the same device */
 #define XIRCOM_VENDOR_ID		0x085a
 #define XIRCOM_FAKE_ID			0x8027
+#define XIRCOM_FAKE_ID_2		0x8025 /* "PGMFHUB" serial */
 #define ENTREGA_VENDOR_ID		0x1645
 #define ENTREGA_FAKE_ID			0x8093
 
@@ -70,6 +71,7 @@ static const struct usb_device_id id_table_combined[] = {
 #endif
 #ifdef XIRCOM
 	{ USB_DEVICE(XIRCOM_VENDOR_ID, XIRCOM_FAKE_ID) },
+	{ USB_DEVICE(XIRCOM_VENDOR_ID, XIRCOM_FAKE_ID_2) },
 	{ USB_DEVICE(ENTREGA_VENDOR_ID, ENTREGA_FAKE_ID) },
 #endif
 	{ USB_DEVICE(KEYSPAN_VENDOR_ID, KEYSPAN_PDA_ID) },
@@ -93,6 +95,7 @@ static const struct usb_device_id id_table_fake[] = {
 #ifdef XIRCOM
 static const struct usb_device_id id_table_fake_xircom[] = {
 	{ USB_DEVICE(XIRCOM_VENDOR_ID, XIRCOM_FAKE_ID) },
+	{ USB_DEVICE(XIRCOM_VENDOR_ID, XIRCOM_FAKE_ID_2) },
 	{ USB_DEVICE(ENTREGA_VENDOR_ID, ENTREGA_FAKE_ID) },
 	{ }
 };
diff --git a/drivers/usb/serial/mxuport.c b/drivers/usb/serial/mxuport.c
index ab1d690..460a406 100644
--- a/drivers/usb/serial/mxuport.c
+++ b/drivers/usb/serial/mxuport.c
@@ -1284,7 +1284,8 @@ static int mxuport_open(struct tty_struct *tty, struct usb_serial_port *port)
 	}
 
 	/* Initial port termios */
-	mxuport_set_termios(tty, port, NULL);
+	if (tty)
+		mxuport_set_termios(tty, port, NULL);
 
 	/*
 	 * TODO: use RQ_VENDOR_GET_MSR, once we know what it
diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c
index 0f872e6..829604d 100644
--- a/drivers/usb/serial/pl2303.c
+++ b/drivers/usb/serial/pl2303.c
@@ -132,6 +132,7 @@ MODULE_DEVICE_TABLE(usb, id_table);
 #define UART_OVERRUN_ERROR		0x40
 #define UART_CTS			0x80
 
+static void pl2303_set_break(struct usb_serial_port *port, bool enable);
 
 enum pl2303_type {
 	TYPE_01,	/* Type 0 and 1 (difference unknown) */
@@ -615,6 +616,7 @@ static void pl2303_close(struct usb_serial_port *port)
 {
 	usb_serial_generic_close(port);
 	usb_kill_urb(port->interrupt_in_urb);
+	pl2303_set_break(port, false);
 }
 
 static int pl2303_open(struct tty_struct *tty, struct usb_serial_port *port)
@@ -741,17 +743,16 @@ static int pl2303_ioctl(struct tty_struct *tty,
 	return -ENOIOCTLCMD;
 }
 
-static void pl2303_break_ctl(struct tty_struct *tty, int break_state)
+static void pl2303_set_break(struct usb_serial_port *port, bool enable)
 {
-	struct usb_serial_port *port = tty->driver_data;
 	struct usb_serial *serial = port->serial;
 	u16 state;
 	int result;
 
-	if (break_state == 0)
-		state = BREAK_OFF;
-	else
+	if (enable)
 		state = BREAK_ON;
+	else
+		state = BREAK_OFF;
 
 	dev_dbg(&port->dev, "%s - turning break %s\n", __func__,
 			state == BREAK_OFF ? "off" : "on");
@@ -763,6 +764,13 @@ static void pl2303_break_ctl(struct tty_struct *tty, int break_state)
 		dev_err(&port->dev, "error sending break = %d\n", result);
 }
 
+static void pl2303_break_ctl(struct tty_struct *tty, int state)
+{
+	struct usb_serial_port *port = tty->driver_data;
+
+	pl2303_set_break(port, state);
+}
+
 static void pl2303_update_line_status(struct usb_serial_port *port,
 				      unsigned char *data,
 				      unsigned int actual_length)
diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c
index 475723c..529066b 100644
--- a/drivers/usb/serial/usb-serial.c
+++ b/drivers/usb/serial/usb-serial.c
@@ -687,6 +687,21 @@ static void serial_port_dtr_rts(struct tty_port *port, int on)
 		drv->dtr_rts(p, on);
 }
 
+static ssize_t port_number_show(struct device *dev,
+				struct device_attribute *attr, char *buf)
+{
+	struct usb_serial_port *port = to_usb_serial_port(dev);
+
+	return sprintf(buf, "%u\n", port->port_number);
+}
+static DEVICE_ATTR_RO(port_number);
+
+static struct attribute *usb_serial_port_attrs[] = {
+	&dev_attr_port_number.attr,
+	NULL
+};
+ATTRIBUTE_GROUPS(usb_serial_port);
+
 static const struct tty_port_operations serial_port_ops = {
 	.carrier_raised		= serial_port_carrier_raised,
 	.dtr_rts		= serial_port_dtr_rts,
@@ -902,6 +917,7 @@ static int usb_serial_probe(struct usb_interface *interface,
 		port->dev.driver = NULL;
 		port->dev.bus = &usb_serial_bus_type;
 		port->dev.release = &usb_serial_port_release;
+		port->dev.groups = usb_serial_port_groups;
 		device_initialize(&port->dev);
 	}
 
@@ -940,8 +956,9 @@ static int usb_serial_probe(struct usb_interface *interface,
 		port = serial->port[i];
 		if (kfifo_alloc(&port->write_fifo, PAGE_SIZE, GFP_KERNEL))
 			goto probe_error;
-		buffer_size = max_t(int, serial->type->bulk_out_size,
-						usb_endpoint_maxp(endpoint));
+		buffer_size = serial->type->bulk_out_size;
+		if (!buffer_size)
+			buffer_size = usb_endpoint_maxp(endpoint);
 		port->bulk_out_size = buffer_size;
 		port->bulk_out_endpointAddress = endpoint->bEndpointAddress;
 
diff --git a/drivers/usb/storage/alauda.c b/drivers/usb/storage/alauda.c
index 62c2d9d..4b55ab6 100644
--- a/drivers/usb/storage/alauda.c
+++ b/drivers/usb/storage/alauda.c
@@ -207,7 +207,8 @@ static struct alauda_card_info alauda_card_ids[] = {
 	{ 0,}
 };
 
-static struct alauda_card_info *alauda_card_find_id(unsigned char id) {
+static struct alauda_card_info *alauda_card_find_id(unsigned char id)
+{
 	int i;
 
 	for (i = 0; alauda_card_ids[i].id != 0; i++)
@@ -223,7 +224,8 @@ static struct alauda_card_info *alauda_card_find_id(unsigned char id) {
 static unsigned char parity[256];
 static unsigned char ecc2[256];
 
-static void nand_init_ecc(void) {
+static void nand_init_ecc(void)
+{
 	int i, j, a;
 
 	parity[0] = 0;
@@ -247,7 +249,8 @@ static void nand_init_ecc(void) {
 }
 
 /* compute 3-byte ecc on 256 bytes */
-static void nand_compute_ecc(unsigned char *data, unsigned char *ecc) {
+static void nand_compute_ecc(unsigned char *data, unsigned char *ecc)
+{
 	int i, j, a;
 	unsigned char par = 0, bit, bits[8] = {0};
 
@@ -270,11 +273,13 @@ static void nand_compute_ecc(unsigned char *data, unsigned char *ecc) {
 	ecc[2] = ecc2[par];
 }
 
-static int nand_compare_ecc(unsigned char *data, unsigned char *ecc) {
+static int nand_compare_ecc(unsigned char *data, unsigned char *ecc)
+{
 	return (data[0] == ecc[0] && data[1] == ecc[1] && data[2] == ecc[2]);
 }
 
-static void nand_store_ecc(unsigned char *data, unsigned char *ecc) {
+static void nand_store_ecc(unsigned char *data, unsigned char *ecc)
+{
 	memcpy(data, ecc, 3);
 }
 
diff --git a/drivers/usb/storage/cypress_atacb.c b/drivers/usb/storage/cypress_atacb.c
index 8514a2d..b3466d1 100644
--- a/drivers/usb/storage/cypress_atacb.c
+++ b/drivers/usb/storage/cypress_atacb.c
@@ -96,13 +96,13 @@ static void cypress_atacb_passthrough(struct scsi_cmnd *srb, struct us_data *us)
 	if (save_cmnd[1] >> 5) /* MULTIPLE_COUNT */
 		goto invalid_fld;
 	/* check protocol */
-	switch((save_cmnd[1] >> 1) & 0xf) {
-		case 3: /*no DATA */
-		case 4: /* PIO in */
-		case 5: /* PIO out */
-			break;
-		default:
-			goto invalid_fld;
+	switch ((save_cmnd[1] >> 1) & 0xf) {
+	case 3: /*no DATA */
+	case 4: /* PIO in */
+	case 5: /* PIO out */
+		break;
+	default:
+		goto invalid_fld;
 	}
 
 	/* first build the ATACB command */
@@ -132,8 +132,7 @@ static void cypress_atacb_passthrough(struct scsi_cmnd *srb, struct us_data *us)
 					|| save_cmnd[11])
 				goto invalid_fld;
 		}
-	}
-	else { /* ATA12 */
+	} else { /* ATA12 */
 		srb->cmnd[ 6] = save_cmnd[3]; /* features */
 		srb->cmnd[ 7] = save_cmnd[4]; /* sector count */
 		srb->cmnd[ 8] = save_cmnd[5]; /* lba low */
diff --git a/drivers/usb/storage/isd200.c b/drivers/usb/storage/isd200.c
index 599d8bf..0761786 100644
--- a/drivers/usb/storage/isd200.c
+++ b/drivers/usb/storage/isd200.c
@@ -737,7 +737,7 @@ static void isd200_log_config(struct us_data *us, struct isd200_info *info)
 		     info->ConfigData.ATAExtraConfig & ATACFGE_CONF_DESC2);
 	usb_stor_dbg(us, "      Skip Device Boot: 0x%x\n",
 		     info->ConfigData.ATAExtraConfig & ATACFGE_SKIP_BOOT);
-	usb_stor_dbg(us, "      ATA 3 State Supsend: 0x%x\n",
+	usb_stor_dbg(us, "      ATA 3 State Suspend: 0x%x\n",
 		     info->ConfigData.ATAExtraConfig & ATACFGE_STATE_SUSPEND);
 	usb_stor_dbg(us, "      Descriptor Override: 0x%x\n",
 		     info->ConfigData.ATAExtraConfig & ATACFGE_DESC_OVERRIDE);
diff --git a/drivers/usb/storage/unusual_uas.h b/drivers/usb/storage/unusual_uas.h
index dbc00e5..c85ea53 100644
--- a/drivers/usb/storage/unusual_uas.h
+++ b/drivers/usb/storage/unusual_uas.h
@@ -113,6 +113,20 @@ UNUSUAL_DEV(0x0bc2, 0xab2a, 0x0000, 0x9999,
 		USB_SC_DEVICE, USB_PR_DEVICE, NULL,
 		US_FL_NO_ATA_1X),
 
+/* Reported-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> */
+UNUSUAL_DEV(0x13fd, 0x3940, 0x0000, 0x9999,
+		"Initio Corporation",
+		"",
+		USB_SC_DEVICE, USB_PR_DEVICE, NULL,
+		US_FL_NO_ATA_1X),
+
+/* Reported-by: Tom Arild Naess <tanaess@gmail.com> */
+UNUSUAL_DEV(0x152d, 0x0539, 0x0000, 0x9999,
+		"JMicron",
+		"JMS539",
+		USB_SC_DEVICE, USB_PR_DEVICE, NULL,
+		US_FL_NO_REPORT_OPCODES),
+
 /* Reported-by: Claudio Bizzarri <claudio.bizzarri@gmail.com> */
 UNUSUAL_DEV(0x152d, 0x0567, 0x0000, 0x9999,
 		"JMicron",
diff --git a/drivers/usb/storage/usb.c b/drivers/usb/storage/usb.c
index d468d02..5600c33 100644
--- a/drivers/usb/storage/usb.c
+++ b/drivers/usb/storage/usb.c
@@ -889,6 +889,12 @@ static void usb_stor_scan_dwork(struct work_struct *work)
 	    !(us->fflags & US_FL_SCM_MULT_TARG)) {
 		mutex_lock(&us->dev_mutex);
 		us->max_lun = usb_stor_Bulk_max_lun(us);
+		/*
+		 * Allow proper scanning of devices that present more than 8 LUNs
+		 * While not affecting other devices that may need the previous behavior
+		 */
+		if (us->max_lun >= 8)
+			us_to_host(us)->max_lun = us->max_lun+1;
 		mutex_unlock(&us->dev_mutex);
 	}
 	scsi_scan_host(us_to_host(us));
diff --git a/drivers/usb/usbip/vhci_hcd.c b/drivers/usb/usbip/vhci_hcd.c
index 11f6f61..e9ef1ec 100644
--- a/drivers/usb/usbip/vhci_hcd.c
+++ b/drivers/usb/usbip/vhci_hcd.c
@@ -216,7 +216,7 @@ done:
 static inline void hub_descriptor(struct usb_hub_descriptor *desc)
 {
 	memset(desc, 0, sizeof(*desc));
-	desc->bDescriptorType = 0x29;
+	desc->bDescriptorType = USB_DT_HUB;
 	desc->bDescLength = 9;
 	desc->wHubCharacteristics = __constant_cpu_to_le16(
 		HUB_CHAR_INDV_PORT_LPSM | HUB_CHAR_COMMON_OCPM);
diff --git a/drivers/usb/wusbcore/rh.c b/drivers/usb/wusbcore/rh.c
index aa5af81..a082fe6 100644
--- a/drivers/usb/wusbcore/rh.c
+++ b/drivers/usb/wusbcore/rh.c
@@ -182,7 +182,7 @@ static int wusbhc_rh_get_hub_descr(struct wusbhc *wusbhc, u16 wValue,
 	if (wLength < length)
 		return -ENOSPC;
 	descr->bDescLength = 7 + 2 * temp;
-	descr->bDescriptorType = 0x29;	/* HUB type */
+	descr->bDescriptorType = USB_DT_HUB; /* HUB type */
 	descr->bNbrPorts = wusbhc->ports_max;
 	descr->wHubCharacteristics = cpu_to_le16(
 		HUB_CHAR_COMMON_LPSM	/* All ports power at once */
diff --git a/drivers/uwb/umc-bus.c b/drivers/uwb/umc-bus.c
index 88a290f..c857140 100644
--- a/drivers/uwb/umc-bus.c
+++ b/drivers/uwb/umc-bus.c
@@ -163,38 +163,6 @@ static int umc_device_remove(struct device *dev)
 	return 0;
 }
 
-static int umc_device_suspend(struct device *dev, pm_message_t state)
-{
-	struct umc_dev *umc;
-	struct umc_driver *umc_driver;
-	int err = 0;
-
-	umc = to_umc_dev(dev);
-
-	if (dev->driver) {
-		umc_driver = to_umc_driver(dev->driver);
-		if (umc_driver->suspend)
-			err = umc_driver->suspend(umc, state);
-	}
-	return err;
-}
-
-static int umc_device_resume(struct device *dev)
-{
-	struct umc_dev *umc;
-	struct umc_driver *umc_driver;
-	int err = 0;
-
-	umc = to_umc_dev(dev);
-
-	if (dev->driver) {
-		umc_driver = to_umc_driver(dev->driver);
-		if (umc_driver->resume)
-			err = umc_driver->resume(umc);
-	}
-	return err;
-}
-
 static ssize_t capability_id_show(struct device *dev, struct device_attribute *attr, char *buf)
 {
 	struct umc_dev *umc = to_umc_dev(dev);
@@ -223,8 +191,6 @@ struct bus_type umc_bus_type = {
 	.match		= umc_bus_match,
 	.probe		= umc_device_probe,
 	.remove		= umc_device_remove,
-	.suspend        = umc_device_suspend,
-	.resume         = umc_device_resume,
 	.dev_groups	= umc_dev_groups,
 };
 EXPORT_SYMBOL_GPL(umc_bus_type);
diff --git a/drivers/uwb/whci.c b/drivers/uwb/whci.c
index 46b7cfc..c3ee39a 100644
--- a/drivers/uwb/whci.c
+++ b/drivers/uwb/whci.c
@@ -133,8 +133,7 @@ static void whci_del_cap(struct whci_card *card, int n)
 {
 	struct umc_dev *umc = card->devs[n];
 
-	if (umc != NULL)
-		umc_device_unregister(umc);
+	umc_device_unregister(umc);
 }
 
 static int whci_n_caps(struct pci_dev *pci)
diff --git a/drivers/vfio/pci/vfio_pci_intrs.c b/drivers/vfio/pci/vfio_pci_intrs.c
index f88bfdf..2027a27 100644
--- a/drivers/vfio/pci/vfio_pci_intrs.c
+++ b/drivers/vfio/pci/vfio_pci_intrs.c
@@ -868,12 +868,14 @@ int vfio_pci_set_irqs_ioctl(struct vfio_pci_device *vdev, uint32_t flags,
 				func = vfio_pci_set_err_trigger;
 			break;
 		}
+		break;
 	case VFIO_PCI_REQ_IRQ_INDEX:
 		switch (flags & VFIO_IRQ_SET_ACTION_TYPE_MASK) {
 		case VFIO_IRQ_SET_ACTION_TRIGGER:
 			func = vfio_pci_set_req_trigger;
 			break;
 		}
+		break;
 	}
 
 	if (!func)
diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c
index afa06d2..2bbfc25e 100644
--- a/drivers/vhost/net.c
+++ b/drivers/vhost/net.c
@@ -591,11 +591,6 @@ static void handle_rx(struct vhost_net *net)
 			 * TODO: support TSO.
 			 */
 			iov_iter_advance(&msg.msg_iter, vhost_hlen);
-		} else {
-			/* It'll come from socket; we'll need to patch
-			 * ->num_buffers over if VIRTIO_NET_F_MRG_RXBUF
-			 */
-			iov_iter_advance(&fixup, sizeof(hdr));
 		}
 		err = sock->ops->recvmsg(NULL, sock, &msg,
 					 sock_len, MSG_DONTWAIT | MSG_TRUNC);
@@ -609,17 +604,25 @@ static void handle_rx(struct vhost_net *net)
 			continue;
 		}
 		/* Supply virtio_net_hdr if VHOST_NET_F_VIRTIO_NET_HDR */
-		if (unlikely(vhost_hlen) &&
-		    copy_to_iter(&hdr, sizeof(hdr), &fixup) != sizeof(hdr)) {
-			vq_err(vq, "Unable to write vnet_hdr at addr %p\n",
-			       vq->iov->iov_base);
-			break;
+		if (unlikely(vhost_hlen)) {
+			if (copy_to_iter(&hdr, sizeof(hdr),
+					 &fixup) != sizeof(hdr)) {
+				vq_err(vq, "Unable to write vnet_hdr "
+				       "at addr %p\n", vq->iov->iov_base);
+				break;
+			}
+		} else {
+			/* Header came from socket; we'll need to patch
+			 * ->num_buffers over if VIRTIO_NET_F_MRG_RXBUF
+			 */
+			iov_iter_advance(&fixup, sizeof(hdr));
 		}
 		/* TODO: Should check and handle checksum. */
 
 		num_buffers = cpu_to_vhost16(vq, headcount);
 		if (likely(mergeable) &&
-		    copy_to_iter(&num_buffers, 2, &fixup) != 2) {
+		    copy_to_iter(&num_buffers, sizeof num_buffers,
+				 &fixup) != sizeof num_buffers) {
 			vq_err(vq, "Failed num_buffers write");
 			vhost_discard_vq_desc(vq, headcount);
 			break;
diff --git a/drivers/vhost/scsi.c b/drivers/vhost/scsi.c
index 8d4f3f1..71df240 100644
--- a/drivers/vhost/scsi.c
+++ b/drivers/vhost/scsi.c
@@ -1956,10 +1956,9 @@ static int vhost_scsi_make_nexus(struct vhost_scsi_tpg *tpg,
 		goto out;
 	}
 	/*
-	 * Now register the TCM vhost virtual I_T Nexus as active with the
-	 * call to __transport_register_session()
+	 * Now register the TCM vhost virtual I_T Nexus as active.
 	 */
-	__transport_register_session(se_tpg, tv_nexus->tvn_se_sess->se_node_acl,
+	transport_register_session(se_tpg, tv_nexus->tvn_se_sess->se_node_acl,
 			tv_nexus->tvn_se_sess, tv_nexus);
 	tpg->tpg_nexus = tv_nexus;
 
diff --git a/drivers/video/fbdev/amba-clcd.c b/drivers/video/fbdev/amba-clcd.c
index 32c0b6b..9362424 100644
--- a/drivers/video/fbdev/amba-clcd.c
+++ b/drivers/video/fbdev/amba-clcd.c
@@ -599,6 +599,9 @@ static int clcdfb_of_get_mode(struct device *dev, struct device_node *endpoint,
 
 	len = clcdfb_snprintf_mode(NULL, 0, mode);
 	name = devm_kzalloc(dev, len + 1, GFP_KERNEL);
+	if (!name)
+		return -ENOMEM;
+
 	clcdfb_snprintf_mode(name, len + 1, mode);
 	mode->name = name;
 
diff --git a/drivers/video/fbdev/core/fbmon.c b/drivers/video/fbdev/core/fbmon.c
index 9533859..868facd 100644
--- a/drivers/video/fbdev/core/fbmon.c
+++ b/drivers/video/fbdev/core/fbmon.c
@@ -624,9 +624,6 @@ static struct fb_videomode *fb_create_modedb(unsigned char *edid, int *dbsize,
 	int num = 0, i, first = 1;
 	int ver, rev;
 
-	ver = edid[EDID_STRUCT_VERSION];
-	rev = edid[EDID_STRUCT_REVISION];
-
 	mode = kzalloc(50 * sizeof(struct fb_videomode), GFP_KERNEL);
 	if (mode == NULL)
 		return NULL;
@@ -637,6 +634,9 @@ static struct fb_videomode *fb_create_modedb(unsigned char *edid, int *dbsize,
 		return NULL;
 	}
 
+	ver = edid[EDID_STRUCT_VERSION];
+	rev = edid[EDID_STRUCT_REVISION];
+
 	*dbsize = 0;
 
 	DPRINTK("   Detailed Timings\n");
diff --git a/drivers/video/fbdev/omap2/dss/display-sysfs.c b/drivers/video/fbdev/omap2/dss/display-sysfs.c
index 5a2095a..1218655 100644
--- a/drivers/video/fbdev/omap2/dss/display-sysfs.c
+++ b/drivers/video/fbdev/omap2/dss/display-sysfs.c
@@ -28,44 +28,22 @@
 #include <video/omapdss.h>
 #include "dss.h"
 
-static struct omap_dss_device *to_dss_device_sysfs(struct device *dev)
+static ssize_t display_name_show(struct omap_dss_device *dssdev, char *buf)
 {
-	struct omap_dss_device *dssdev = NULL;
-
-	for_each_dss_dev(dssdev) {
-		if (dssdev->dev == dev) {
-			omap_dss_put_device(dssdev);
-			return dssdev;
-		}
-	}
-
-	return NULL;
-}
-
-static ssize_t display_name_show(struct device *dev,
-		struct device_attribute *attr, char *buf)
-{
-	struct omap_dss_device *dssdev = to_dss_device_sysfs(dev);
-
 	return snprintf(buf, PAGE_SIZE, "%s\n",
 			dssdev->name ?
 			dssdev->name : "");
 }
 
-static ssize_t display_enabled_show(struct device *dev,
-		struct device_attribute *attr, char *buf)
+static ssize_t display_enabled_show(struct omap_dss_device *dssdev, char *buf)
 {
-	struct omap_dss_device *dssdev = to_dss_device_sysfs(dev);
-
 	return snprintf(buf, PAGE_SIZE, "%d\n",
 			omapdss_device_is_enabled(dssdev));
 }
 
-static ssize_t display_enabled_store(struct device *dev,
-		struct device_attribute *attr,
+static ssize_t display_enabled_store(struct omap_dss_device *dssdev,
 		const char *buf, size_t size)
 {
-	struct omap_dss_device *dssdev = to_dss_device_sysfs(dev);
 	int r;
 	bool enable;
 
@@ -90,19 +68,16 @@ static ssize_t display_enabled_store(struct device *dev,
 	return size;
 }
 
-static ssize_t display_tear_show(struct device *dev,
-		struct device_attribute *attr, char *buf)
+static ssize_t display_tear_show(struct omap_dss_device *dssdev, char *buf)
 {
-	struct omap_dss_device *dssdev = to_dss_device_sysfs(dev);
 	return snprintf(buf, PAGE_SIZE, "%d\n",
 			dssdev->driver->get_te ?
 			dssdev->driver->get_te(dssdev) : 0);
 }
 
-static ssize_t display_tear_store(struct device *dev,
-		struct device_attribute *attr, const char *buf, size_t size)
+static ssize_t display_tear_store(struct omap_dss_device *dssdev,
+	const char *buf, size_t size)
 {
-	struct omap_dss_device *dssdev = to_dss_device_sysfs(dev);
 	int r;
 	bool te;
 
@@ -120,10 +95,8 @@ static ssize_t display_tear_store(struct device *dev,
 	return size;
 }
 
-static ssize_t display_timings_show(struct device *dev,
-		struct device_attribute *attr, char *buf)
+static ssize_t display_timings_show(struct omap_dss_device *dssdev, char *buf)
 {
-	struct omap_dss_device *dssdev = to_dss_device_sysfs(dev);
 	struct omap_video_timings t;
 
 	if (!dssdev->driver->get_timings)
@@ -137,10 +110,9 @@ static ssize_t display_timings_show(struct device *dev,
 			t.y_res, t.vfp, t.vbp, t.vsw);
 }
 
-static ssize_t display_timings_store(struct device *dev,
-		struct device_attribute *attr, const char *buf, size_t size)
+static ssize_t display_timings_store(struct omap_dss_device *dssdev,
+	const char *buf, size_t size)
 {
-	struct omap_dss_device *dssdev = to_dss_device_sysfs(dev);
 	struct omap_video_timings t = dssdev->panel.timings;
 	int r, found;
 
@@ -176,10 +148,8 @@ static ssize_t display_timings_store(struct device *dev,
 	return size;
 }
 
-static ssize_t display_rotate_show(struct device *dev,
-		struct device_attribute *attr, char *buf)
+static ssize_t display_rotate_show(struct omap_dss_device *dssdev, char *buf)
 {
-	struct omap_dss_device *dssdev = to_dss_device_sysfs(dev);
 	int rotate;
 	if (!dssdev->driver->get_rotate)
 		return -ENOENT;
@@ -187,10 +157,9 @@ static ssize_t display_rotate_show(struct device *dev,
 	return snprintf(buf, PAGE_SIZE, "%u\n", rotate);
 }
 
-static ssize_t display_rotate_store(struct device *dev,
-		struct device_attribute *attr, const char *buf, size_t size)
+static ssize_t display_rotate_store(struct omap_dss_device *dssdev,
+	const char *buf, size_t size)
 {
-	struct omap_dss_device *dssdev = to_dss_device_sysfs(dev);
 	int rot, r;
 
 	if (!dssdev->driver->set_rotate || !dssdev->driver->get_rotate)
@@ -207,10 +176,8 @@ static ssize_t display_rotate_store(struct device *dev,
 	return size;
 }
 
-static ssize_t display_mirror_show(struct device *dev,
-		struct device_attribute *attr, char *buf)
+static ssize_t display_mirror_show(struct omap_dss_device *dssdev, char *buf)
 {
-	struct omap_dss_device *dssdev = to_dss_device_sysfs(dev);
 	int mirror;
 	if (!dssdev->driver->get_mirror)
 		return -ENOENT;
@@ -218,10 +185,9 @@ static ssize_t display_mirror_show(struct device *dev,
 	return snprintf(buf, PAGE_SIZE, "%u\n", mirror);
 }
 
-static ssize_t display_mirror_store(struct device *dev,
-		struct device_attribute *attr, const char *buf, size_t size)
+static ssize_t display_mirror_store(struct omap_dss_device *dssdev,
+	const char *buf, size_t size)
 {
-	struct omap_dss_device *dssdev = to_dss_device_sysfs(dev);
 	int r;
 	bool mirror;
 
@@ -239,10 +205,8 @@ static ssize_t display_mirror_store(struct device *dev,
 	return size;
 }
 
-static ssize_t display_wss_show(struct device *dev,
-		struct device_attribute *attr, char *buf)
+static ssize_t display_wss_show(struct omap_dss_device *dssdev, char *buf)
 {
-	struct omap_dss_device *dssdev = to_dss_device_sysfs(dev);
 	unsigned int wss;
 
 	if (!dssdev->driver->get_wss)
@@ -253,10 +217,9 @@ static ssize_t display_wss_show(struct device *dev,
 	return snprintf(buf, PAGE_SIZE, "0x%05x\n", wss);
 }
 
-static ssize_t display_wss_store(struct device *dev,
-		struct device_attribute *attr, const char *buf, size_t size)
+static ssize_t display_wss_store(struct omap_dss_device *dssdev,
+	const char *buf, size_t size)
 {
-	struct omap_dss_device *dssdev = to_dss_device_sysfs(dev);
 	u32 wss;
 	int r;
 
@@ -277,50 +240,94 @@ static ssize_t display_wss_store(struct device *dev,
 	return size;
 }
 
-static DEVICE_ATTR(display_name, S_IRUGO, display_name_show, NULL);
-static DEVICE_ATTR(enabled, S_IRUGO|S_IWUSR,
+struct display_attribute {
+	struct attribute attr;
+	ssize_t (*show)(struct omap_dss_device *, char *);
+	ssize_t	(*store)(struct omap_dss_device *, const char *, size_t);
+};
+
+#define DISPLAY_ATTR(_name, _mode, _show, _store) \
+	struct display_attribute display_attr_##_name = \
+	__ATTR(_name, _mode, _show, _store)
+
+static DISPLAY_ATTR(name, S_IRUGO, display_name_show, NULL);
+static DISPLAY_ATTR(display_name, S_IRUGO, display_name_show, NULL);
+static DISPLAY_ATTR(enabled, S_IRUGO|S_IWUSR,
 		display_enabled_show, display_enabled_store);
-static DEVICE_ATTR(tear_elim, S_IRUGO|S_IWUSR,
+static DISPLAY_ATTR(tear_elim, S_IRUGO|S_IWUSR,
 		display_tear_show, display_tear_store);
-static DEVICE_ATTR(timings, S_IRUGO|S_IWUSR,
+static DISPLAY_ATTR(timings, S_IRUGO|S_IWUSR,
 		display_timings_show, display_timings_store);
-static DEVICE_ATTR(rotate, S_IRUGO|S_IWUSR,
+static DISPLAY_ATTR(rotate, S_IRUGO|S_IWUSR,
 		display_rotate_show, display_rotate_store);
-static DEVICE_ATTR(mirror, S_IRUGO|S_IWUSR,
+static DISPLAY_ATTR(mirror, S_IRUGO|S_IWUSR,
 		display_mirror_show, display_mirror_store);
-static DEVICE_ATTR(wss, S_IRUGO|S_IWUSR,
+static DISPLAY_ATTR(wss, S_IRUGO|S_IWUSR,
 		display_wss_show, display_wss_store);
 
-static const struct attribute *display_sysfs_attrs[] = {
-	&dev_attr_display_name.attr,
-	&dev_attr_enabled.attr,
-	&dev_attr_tear_elim.attr,
-	&dev_attr_timings.attr,
-	&dev_attr_rotate.attr,
-	&dev_attr_mirror.attr,
-	&dev_attr_wss.attr,
+static struct attribute *display_sysfs_attrs[] = {
+	&display_attr_name.attr,
+	&display_attr_display_name.attr,
+	&display_attr_enabled.attr,
+	&display_attr_tear_elim.attr,
+	&display_attr_timings.attr,
+	&display_attr_rotate.attr,
+	&display_attr_mirror.attr,
+	&display_attr_wss.attr,
 	NULL
 };
 
+static ssize_t display_attr_show(struct kobject *kobj, struct attribute *attr,
+		char *buf)
+{
+	struct omap_dss_device *dssdev;
+	struct display_attribute *display_attr;
+
+	dssdev = container_of(kobj, struct omap_dss_device, kobj);
+	display_attr = container_of(attr, struct display_attribute, attr);
+
+	if (!display_attr->show)
+		return -ENOENT;
+
+	return display_attr->show(dssdev, buf);
+}
+
+static ssize_t display_attr_store(struct kobject *kobj, struct attribute *attr,
+		const char *buf, size_t size)
+{
+	struct omap_dss_device *dssdev;
+	struct display_attribute *display_attr;
+
+	dssdev = container_of(kobj, struct omap_dss_device, kobj);
+	display_attr = container_of(attr, struct display_attribute, attr);
+
+	if (!display_attr->store)
+		return -ENOENT;
+
+	return display_attr->store(dssdev, buf, size);
+}
+
+static const struct sysfs_ops display_sysfs_ops = {
+	.show = display_attr_show,
+	.store = display_attr_store,
+};
+
+static struct kobj_type display_ktype = {
+	.sysfs_ops = &display_sysfs_ops,
+	.default_attrs = display_sysfs_attrs,
+};
+
 int display_init_sysfs(struct platform_device *pdev)
 {
 	struct omap_dss_device *dssdev = NULL;
 	int r;
 
 	for_each_dss_dev(dssdev) {
-		struct kobject *kobj = &dssdev->dev->kobj;
-
-		r = sysfs_create_files(kobj, display_sysfs_attrs);
+		r = kobject_init_and_add(&dssdev->kobj, &display_ktype,
+			&pdev->dev.kobj, dssdev->alias);
 		if (r) {
 			DSSERR("failed to create sysfs files\n");
-			goto err;
-		}
-
-		r = sysfs_create_link(&pdev->dev.kobj, kobj, dssdev->alias);
-		if (r) {
-			sysfs_remove_files(kobj, display_sysfs_attrs);
-
-			DSSERR("failed to create sysfs display link\n");
+			omap_dss_put_device(dssdev);
 			goto err;
 		}
 	}
@@ -338,8 +345,12 @@ void display_uninit_sysfs(struct platform_device *pdev)
 	struct omap_dss_device *dssdev = NULL;
 
 	for_each_dss_dev(dssdev) {
-		sysfs_remove_link(&pdev->dev.kobj, dssdev->alias);
-		sysfs_remove_files(&dssdev->dev->kobj,
-				display_sysfs_attrs);
+		if (kobject_name(&dssdev->kobj) == NULL)
+			continue;
+
+		kobject_del(&dssdev->kobj);
+		kobject_put(&dssdev->kobj);
+
+		memset(&dssdev->kobj, 0, sizeof(dssdev->kobj));
 	}
 }
diff --git a/drivers/virtio/virtio_balloon.c b/drivers/virtio/virtio_balloon.c
index 0413157..6a356e3 100644
--- a/drivers/virtio/virtio_balloon.c
+++ b/drivers/virtio/virtio_balloon.c
@@ -29,6 +29,7 @@
 #include <linux/module.h>
 #include <linux/balloon_compaction.h>
 #include <linux/oom.h>
+#include <linux/wait.h>
 
 /*
  * Balloon device works in 4K page units.  So each page is pointed to by
@@ -334,17 +335,25 @@ static int virtballoon_oom_notify(struct notifier_block *self,
 static int balloon(void *_vballoon)
 {
 	struct virtio_balloon *vb = _vballoon;
+	DEFINE_WAIT_FUNC(wait, woken_wake_function);
 
 	set_freezable();
 	while (!kthread_should_stop()) {
 		s64 diff;
 
 		try_to_freeze();
-		wait_event_interruptible(vb->config_change,
-					 (diff = towards_target(vb)) != 0
-					 || vb->need_stats_update
-					 || kthread_should_stop()
-					 || freezing(current));
+
+		add_wait_queue(&vb->config_change, &wait);
+		for (;;) {
+			if ((diff = towards_target(vb)) != 0 ||
+			    vb->need_stats_update ||
+			    kthread_should_stop() ||
+			    freezing(current))
+				break;
+			wait_woken(&wait, TASK_INTERRUPTIBLE, MAX_SCHEDULE_TIMEOUT);
+		}
+		remove_wait_queue(&vb->config_change, &wait);
+
 		if (vb->need_stats_update)
 			stats_handle_request(vb);
 		if (diff > 0)
@@ -499,6 +508,8 @@ static int virtballoon_probe(struct virtio_device *vdev)
 	if (err < 0)
 		goto out_oom_notify;
 
+	virtio_device_ready(vdev);
+
 	vb->thread = kthread_run(balloon, vb, "vballoon");
 	if (IS_ERR(vb->thread)) {
 		err = PTR_ERR(vb->thread);
diff --git a/drivers/virtio/virtio_mmio.c b/drivers/virtio/virtio_mmio.c
index cad5698..6010d7e 100644
--- a/drivers/virtio/virtio_mmio.c
+++ b/drivers/virtio/virtio_mmio.c
@@ -156,22 +156,95 @@ static void vm_get(struct virtio_device *vdev, unsigned offset,
 		   void *buf, unsigned len)
 {
 	struct virtio_mmio_device *vm_dev = to_virtio_mmio_device(vdev);
-	u8 *ptr = buf;
-	int i;
+	void __iomem *base = vm_dev->base + VIRTIO_MMIO_CONFIG;
+	u8 b;
+	__le16 w;
+	__le32 l;
 
-	for (i = 0; i < len; i++)
-		ptr[i] = readb(vm_dev->base + VIRTIO_MMIO_CONFIG + offset + i);
+	if (vm_dev->version == 1) {
+		u8 *ptr = buf;
+		int i;
+
+		for (i = 0; i < len; i++)
+			ptr[i] = readb(base + offset + i);
+		return;
+	}
+
+	switch (len) {
+	case 1:
+		b = readb(base + offset);
+		memcpy(buf, &b, sizeof b);
+		break;
+	case 2:
+		w = cpu_to_le16(readw(base + offset));
+		memcpy(buf, &w, sizeof w);
+		break;
+	case 4:
+		l = cpu_to_le32(readl(base + offset));
+		memcpy(buf, &l, sizeof l);
+		break;
+	case 8:
+		l = cpu_to_le32(readl(base + offset));
+		memcpy(buf, &l, sizeof l);
+		l = cpu_to_le32(ioread32(base + offset + sizeof l));
+		memcpy(buf + sizeof l, &l, sizeof l);
+		break;
+	default:
+		BUG();
+	}
 }
 
 static void vm_set(struct virtio_device *vdev, unsigned offset,
 		   const void *buf, unsigned len)
 {
 	struct virtio_mmio_device *vm_dev = to_virtio_mmio_device(vdev);
-	const u8 *ptr = buf;
-	int i;
+	void __iomem *base = vm_dev->base + VIRTIO_MMIO_CONFIG;
+	u8 b;
+	__le16 w;
+	__le32 l;
 
-	for (i = 0; i < len; i++)
-		writeb(ptr[i], vm_dev->base + VIRTIO_MMIO_CONFIG + offset + i);
+	if (vm_dev->version == 1) {
+		const u8 *ptr = buf;
+		int i;
+
+		for (i = 0; i < len; i++)
+			writeb(ptr[i], base + offset + i);
+
+		return;
+	}
+
+	switch (len) {
+	case 1:
+		memcpy(&b, buf, sizeof b);
+		writeb(b, base + offset);
+		break;
+	case 2:
+		memcpy(&w, buf, sizeof w);
+		writew(le16_to_cpu(w), base + offset);
+		break;
+	case 4:
+		memcpy(&l, buf, sizeof l);
+		writel(le32_to_cpu(l), base + offset);
+		break;
+	case 8:
+		memcpy(&l, buf, sizeof l);
+		writel(le32_to_cpu(l), base + offset);
+		memcpy(&l, buf + sizeof l, sizeof l);
+		writel(le32_to_cpu(l), base + offset + sizeof l);
+		break;
+	default:
+		BUG();
+	}
+}
+
+static u32 vm_generation(struct virtio_device *vdev)
+{
+	struct virtio_mmio_device *vm_dev = to_virtio_mmio_device(vdev);
+
+	if (vm_dev->version == 1)
+		return 0;
+	else
+		return readl(vm_dev->base + VIRTIO_MMIO_CONFIG_GENERATION);
 }
 
 static u8 vm_get_status(struct virtio_device *vdev)
@@ -440,6 +513,7 @@ static const char *vm_bus_name(struct virtio_device *vdev)
 static const struct virtio_config_ops virtio_mmio_config_ops = {
 	.get		= vm_get,
 	.set		= vm_set,
+	.generation	= vm_generation,
 	.get_status	= vm_get_status,
 	.set_status	= vm_set_status,
 	.reset		= vm_reset,
diff --git a/drivers/vme/bridges/vme_tsi148.c b/drivers/vme/bridges/vme_tsi148.c
index e07cfa8..895c2a3 100644
--- a/drivers/vme/bridges/vme_tsi148.c
+++ b/drivers/vme/bridges/vme_tsi148.c
@@ -587,11 +587,6 @@ static int tsi148_slave_set(struct vme_slave_resource *image, int enabled,
 		granularity = 0x10000;
 		addr |= TSI148_LCSR_ITAT_AS_A64;
 		break;
-	case VME_CRCSR:
-	case VME_USER1:
-	case VME_USER2:
-	case VME_USER3:
-	case VME_USER4:
 	default:
 		dev_err(tsi148_bridge->parent, "Invalid address space\n");
 		return -EINVAL;
@@ -2471,7 +2466,8 @@ static int tsi148_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 		master_image->locked = 0;
 		master_image->number = i;
 		master_image->address_attr = VME_A16 | VME_A24 | VME_A32 |
-			VME_A64;
+			VME_A64 | VME_CRCSR | VME_USER1 | VME_USER2 |
+			VME_USER3 | VME_USER4;
 		master_image->cycle_attr = VME_SCT | VME_BLT | VME_MBLT |
 			VME_2eVME | VME_2eSST | VME_2eSSTB | VME_2eSST160 |
 			VME_2eSST267 | VME_2eSST320 | VME_SUPER | VME_USER |
@@ -2500,8 +2496,7 @@ static int tsi148_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 		slave_image->locked = 0;
 		slave_image->number = i;
 		slave_image->address_attr = VME_A16 | VME_A24 | VME_A32 |
-			VME_A64 | VME_CRCSR | VME_USER1 | VME_USER2 |
-			VME_USER3 | VME_USER4;
+			VME_A64;
 		slave_image->cycle_attr = VME_SCT | VME_BLT | VME_MBLT |
 			VME_2eVME | VME_2eSST | VME_2eSSTB | VME_2eSST160 |
 			VME_2eSST267 | VME_2eSST320 | VME_SUPER | VME_USER |
diff --git a/drivers/vme/vme.c b/drivers/vme/vme.c
index d95fb84..6bab2c4ed 100644
--- a/drivers/vme/vme.c
+++ b/drivers/vme/vme.c
@@ -609,6 +609,32 @@ unsigned int vme_master_rmw(struct vme_resource *resource, unsigned int mask,
 }
 EXPORT_SYMBOL(vme_master_rmw);
 
+int vme_master_mmap(struct vme_resource *resource, struct vm_area_struct *vma)
+{
+	struct vme_master_resource *image;
+	phys_addr_t phys_addr;
+	unsigned long vma_size;
+
+	if (resource->type != VME_MASTER) {
+		pr_err("Not a master resource\n");
+		return -EINVAL;
+	}
+
+	image = list_entry(resource->entry, struct vme_master_resource, list);
+	phys_addr = image->bus_resource.start + (vma->vm_pgoff << PAGE_SHIFT);
+	vma_size = vma->vm_end - vma->vm_start;
+
+	if (phys_addr + vma_size > image->bus_resource.end + 1) {
+		pr_err("Map size cannot exceed the window size\n");
+		return -EFAULT;
+	}
+
+	vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
+
+	return vm_iomap_memory(vma, phys_addr, vma->vm_end - vma->vm_start);
+}
+EXPORT_SYMBOL(vme_master_mmap);
+
 void vme_master_free(struct vme_resource *resource)
 {
 	struct vme_master_resource *master_image;
diff --git a/drivers/watchdog/at91sam9_wdt.c b/drivers/watchdog/at91sam9_wdt.c
index 6df9405..1443b3c 100644
--- a/drivers/watchdog/at91sam9_wdt.c
+++ b/drivers/watchdog/at91sam9_wdt.c
@@ -208,7 +208,8 @@ static int at91_wdt_init(struct platform_device *pdev, struct at91wdt *wdt)
 
 	if ((tmp & AT91_WDT_WDFIEN) && wdt->irq) {
 		err = request_irq(wdt->irq, wdt_interrupt,
-				  IRQF_SHARED | IRQF_IRQPOLL,
+				  IRQF_SHARED | IRQF_IRQPOLL |
+				  IRQF_NO_SUSPEND,
 				  pdev->name, wdt);
 		if (err)
 			return err;
diff --git a/drivers/watchdog/imgpdc_wdt.c b/drivers/watchdog/imgpdc_wdt.c
index c8def68..0deaa4f 100644
--- a/drivers/watchdog/imgpdc_wdt.c
+++ b/drivers/watchdog/imgpdc_wdt.c
@@ -42,10 +42,10 @@
 #define PDC_WDT_MIN_TIMEOUT		1
 #define PDC_WDT_DEF_TIMEOUT		64
 
-static int heartbeat;
+static int heartbeat = PDC_WDT_DEF_TIMEOUT;
 module_param(heartbeat, int, 0);
-MODULE_PARM_DESC(heartbeat, "Watchdog heartbeats in seconds. "
-	"(default = " __MODULE_STRING(PDC_WDT_DEF_TIMEOUT) ")");
+MODULE_PARM_DESC(heartbeat, "Watchdog heartbeats in seconds "
+	"(default=" __MODULE_STRING(PDC_WDT_DEF_TIMEOUT) ")");
 
 static bool nowayout = WATCHDOG_NOWAYOUT;
 module_param(nowayout, bool, 0);
@@ -191,6 +191,7 @@ static int pdc_wdt_probe(struct platform_device *pdev)
 	pdc_wdt->wdt_dev.ops = &pdc_wdt_ops;
 	pdc_wdt->wdt_dev.max_timeout = 1 << PDC_WDT_CONFIG_DELAY_MASK;
 	pdc_wdt->wdt_dev.parent = &pdev->dev;
+	watchdog_set_drvdata(&pdc_wdt->wdt_dev, pdc_wdt);
 
 	ret = watchdog_init_timeout(&pdc_wdt->wdt_dev, heartbeat, &pdev->dev);
 	if (ret < 0) {
@@ -232,7 +233,6 @@ static int pdc_wdt_probe(struct platform_device *pdev)
 	watchdog_set_nowayout(&pdc_wdt->wdt_dev, nowayout);
 
 	platform_set_drvdata(pdev, pdc_wdt);
-	watchdog_set_drvdata(&pdc_wdt->wdt_dev, pdc_wdt);
 
 	ret = watchdog_register_device(&pdc_wdt->wdt_dev);
 	if (ret)
diff --git a/drivers/watchdog/mtk_wdt.c b/drivers/watchdog/mtk_wdt.c
index a87f6df..938b987 100644
--- a/drivers/watchdog/mtk_wdt.c
+++ b/drivers/watchdog/mtk_wdt.c
@@ -133,7 +133,7 @@ static int mtk_wdt_start(struct watchdog_device *wdt_dev)
 	u32 reg;
 	struct mtk_wdt_dev *mtk_wdt = watchdog_get_drvdata(wdt_dev);
 	void __iomem *wdt_base = mtk_wdt->wdt_base;
-	u32 ret;
+	int ret;
 
 	ret = mtk_wdt_set_timeout(wdt_dev, wdt_dev->timeout);
 	if (ret < 0)
diff --git a/drivers/xen/Kconfig b/drivers/xen/Kconfig
index b812462..94d9680 100644
--- a/drivers/xen/Kconfig
+++ b/drivers/xen/Kconfig
@@ -55,6 +55,23 @@ config XEN_BALLOON_MEMORY_HOTPLUG
 
 	  In that case step 3 should be omitted.
 
+config XEN_BALLOON_MEMORY_HOTPLUG_LIMIT
+	int "Hotplugged memory limit (in GiB) for a PV guest"
+	default 512 if X86_64
+	default 4 if X86_32
+	range 0 64 if X86_32
+	depends on XEN_HAVE_PVMMU
+	depends on XEN_BALLOON_MEMORY_HOTPLUG
+	help
+	  Maxmium amount of memory (in GiB) that a PV guest can be
+	  expanded to when using memory hotplug.
+
+	  A PV guest can have more memory than this limit if is
+	  started with a larger maximum.
+
+	  This value is used to allocate enough space in internal
+	  tables needed for physical memory administration.
+
 config XEN_SCRUB_PAGES
 	bool "Scrub pages before returning them to system"
 	depends on XEN_BALLOON
diff --git a/drivers/xen/Makefile b/drivers/xen/Makefile
index 2140398..2ccd359 100644
--- a/drivers/xen/Makefile
+++ b/drivers/xen/Makefile
@@ -2,7 +2,7 @@ ifeq ($(filter y, $(CONFIG_ARM) $(CONFIG_ARM64)),)
 obj-$(CONFIG_HOTPLUG_CPU)		+= cpu_hotplug.o
 endif
 obj-$(CONFIG_X86)			+= fallback.o
-obj-y	+= grant-table.o features.o balloon.o manage.o
+obj-y	+= grant-table.o features.o balloon.o manage.o preempt.o
 obj-y	+= events/
 obj-y	+= xenbus/
 
diff --git a/drivers/xen/balloon.c b/drivers/xen/balloon.c
index 0b52d92..fd93369 100644
--- a/drivers/xen/balloon.c
+++ b/drivers/xen/balloon.c
@@ -229,6 +229,29 @@ static enum bp_state reserve_additional_memory(long credit)
 	balloon_hotplug = round_up(balloon_hotplug, PAGES_PER_SECTION);
 	nid = memory_add_physaddr_to_nid(hotplug_start_paddr);
 
+#ifdef CONFIG_XEN_HAVE_PVMMU
+        /*
+         * add_memory() will build page tables for the new memory so
+         * the p2m must contain invalid entries so the correct
+         * non-present PTEs will be written.
+         *
+         * If a failure occurs, the original (identity) p2m entries
+         * are not restored since this region is now known not to
+         * conflict with any devices.
+         */ 
+	if (!xen_feature(XENFEAT_auto_translated_physmap)) {
+		unsigned long pfn, i;
+
+		pfn = PFN_DOWN(hotplug_start_paddr);
+		for (i = 0; i < balloon_hotplug; i++) {
+			if (!set_phys_to_machine(pfn + i, INVALID_P2M_ENTRY)) {
+				pr_warn("set_phys_to_machine() failed, no memory added\n");
+				return BP_ECANCELED;
+			}
+                }
+	}
+#endif
+
 	rc = add_memory(nid, hotplug_start_paddr, balloon_hotplug << PAGE_SHIFT);
 
 	if (rc) {
diff --git a/drivers/xen/events/events_base.c b/drivers/xen/events/events_base.c
index b4bca2d..70fba97 100644
--- a/drivers/xen/events/events_base.c
+++ b/drivers/xen/events/events_base.c
@@ -526,20 +526,26 @@ static unsigned int __startup_pirq(unsigned int irq)
 	pirq_query_unmask(irq);
 
 	rc = set_evtchn_to_irq(evtchn, irq);
-	if (rc != 0) {
-		pr_err("irq%d: Failed to set port to irq mapping (%d)\n",
-		       irq, rc);
-		xen_evtchn_close(evtchn);
-		return 0;
-	}
+	if (rc)
+		goto err;
+
 	bind_evtchn_to_cpu(evtchn, 0);
 	info->evtchn = evtchn;
 
+	rc = xen_evtchn_port_setup(info);
+	if (rc)
+		goto err;
+
 out:
 	unmask_evtchn(evtchn);
 	eoi_pirq(irq_get_irq_data(irq));
 
 	return 0;
+
+err:
+	pr_err("irq%d: Failed to set port to irq mapping (%d)\n", irq, rc);
+	xen_evtchn_close(evtchn);
+	return 0;
 }
 
 static unsigned int startup_pirq(struct irq_data *data)
diff --git a/drivers/xen/preempt.c b/drivers/xen/preempt.c
new file mode 100644
index 0000000..a1800c1
--- /dev/null
+++ b/drivers/xen/preempt.c
@@ -0,0 +1,44 @@
+/*
+ * Preemptible hypercalls
+ *
+ * Copyright (C) 2014 Citrix Systems R&D ltd.
+ *
+ * This source code is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ */
+
+#include <linux/sched.h>
+#include <xen/xen-ops.h>
+
+#ifndef CONFIG_PREEMPT
+
+/*
+ * Some hypercalls issued by the toolstack can take many 10s of
+ * seconds. Allow tasks running hypercalls via the privcmd driver to
+ * be voluntarily preempted even if full kernel preemption is
+ * disabled.
+ *
+ * Such preemptible hypercalls are bracketed by
+ * xen_preemptible_hcall_begin() and xen_preemptible_hcall_end()
+ * calls.
+ */
+
+DEFINE_PER_CPU(bool, xen_in_preemptible_hcall);
+EXPORT_SYMBOL_GPL(xen_in_preemptible_hcall);
+
+asmlinkage __visible void xen_maybe_preempt_hcall(void)
+{
+	if (unlikely(__this_cpu_read(xen_in_preemptible_hcall)
+		     && should_resched())) {
+		/*
+		 * Clear flag as we may be rescheduled on a different
+		 * cpu.
+		 */
+		__this_cpu_write(xen_in_preemptible_hcall, false);
+		_cond_resched();
+		__this_cpu_write(xen_in_preemptible_hcall, true);
+	}
+}
+#endif /* CONFIG_PREEMPT */
diff --git a/drivers/xen/privcmd.c b/drivers/xen/privcmd.c
index 569a13b..59ac71c 100644
--- a/drivers/xen/privcmd.c
+++ b/drivers/xen/privcmd.c
@@ -56,10 +56,12 @@ static long privcmd_ioctl_hypercall(void __user *udata)
 	if (copy_from_user(&hypercall, udata, sizeof(hypercall)))
 		return -EFAULT;
 
+	xen_preemptible_hcall_begin();
 	ret = privcmd_call(hypercall.op,
 			   hypercall.arg[0], hypercall.arg[1],
 			   hypercall.arg[2], hypercall.arg[3],
 			   hypercall.arg[4]);
+	xen_preemptible_hcall_end();
 
 	return ret;
 }
diff --git a/drivers/xen/xen-pciback/conf_space.c b/drivers/xen/xen-pciback/conf_space.c
index 46ae0f9..75fe3d4 100644
--- a/drivers/xen/xen-pciback/conf_space.c
+++ b/drivers/xen/xen-pciback/conf_space.c
@@ -16,7 +16,7 @@
 #include "conf_space.h"
 #include "conf_space_quirks.h"
 
-static bool permissive;
+bool permissive;
 module_param(permissive, bool, 0644);
 
 /* This is where xen_pcibk_read_config_byte, xen_pcibk_read_config_word,
diff --git a/drivers/xen/xen-pciback/conf_space.h b/drivers/xen/xen-pciback/conf_space.h
index e56c934..2e1d73d 100644
--- a/drivers/xen/xen-pciback/conf_space.h
+++ b/drivers/xen/xen-pciback/conf_space.h
@@ -64,6 +64,8 @@ struct config_field_entry {
 	void *data;
 };
 
+extern bool permissive;
+
 #define OFFSET(cfg_entry) ((cfg_entry)->base_offset+(cfg_entry)->field->offset)
 
 /* Add fields to a device - the add_fields macro expects to get a pointer to
diff --git a/drivers/xen/xen-pciback/conf_space_header.c b/drivers/xen/xen-pciback/conf_space_header.c
index c5ee825..2d73693 100644
--- a/drivers/xen/xen-pciback/conf_space_header.c
+++ b/drivers/xen/xen-pciback/conf_space_header.c
@@ -11,6 +11,10 @@
 #include "pciback.h"
 #include "conf_space.h"
 
+struct pci_cmd_info {
+	u16 val;
+};
+
 struct pci_bar_info {
 	u32 val;
 	u32 len_val;
@@ -20,22 +24,36 @@ struct pci_bar_info {
 #define is_enable_cmd(value) ((value)&(PCI_COMMAND_MEMORY|PCI_COMMAND_IO))
 #define is_master_cmd(value) ((value)&PCI_COMMAND_MASTER)
 
-static int command_read(struct pci_dev *dev, int offset, u16 *value, void *data)
+/* Bits guests are allowed to control in permissive mode. */
+#define PCI_COMMAND_GUEST (PCI_COMMAND_MASTER|PCI_COMMAND_SPECIAL| \
+			   PCI_COMMAND_INVALIDATE|PCI_COMMAND_VGA_PALETTE| \
+			   PCI_COMMAND_WAIT|PCI_COMMAND_FAST_BACK)
+
+static void *command_init(struct pci_dev *dev, int offset)
 {
-	int i;
-	int ret;
-
-	ret = xen_pcibk_read_config_word(dev, offset, value, data);
-	if (!pci_is_enabled(dev))
-		return ret;
-
-	for (i = 0; i < PCI_ROM_RESOURCE; i++) {
-		if (dev->resource[i].flags & IORESOURCE_IO)
-			*value |= PCI_COMMAND_IO;
-		if (dev->resource[i].flags & IORESOURCE_MEM)
-			*value |= PCI_COMMAND_MEMORY;
+	struct pci_cmd_info *cmd = kmalloc(sizeof(*cmd), GFP_KERNEL);
+	int err;
+
+	if (!cmd)
+		return ERR_PTR(-ENOMEM);
+
+	err = pci_read_config_word(dev, PCI_COMMAND, &cmd->val);
+	if (err) {
+		kfree(cmd);
+		return ERR_PTR(err);
 	}
 
+	return cmd;
+}
+
+static int command_read(struct pci_dev *dev, int offset, u16 *value, void *data)
+{
+	int ret = pci_read_config_word(dev, offset, value);
+	const struct pci_cmd_info *cmd = data;
+
+	*value &= PCI_COMMAND_GUEST;
+	*value |= cmd->val & ~PCI_COMMAND_GUEST;
+
 	return ret;
 }
 
@@ -43,6 +61,8 @@ static int command_write(struct pci_dev *dev, int offset, u16 value, void *data)
 {
 	struct xen_pcibk_dev_data *dev_data;
 	int err;
+	u16 val;
+	struct pci_cmd_info *cmd = data;
 
 	dev_data = pci_get_drvdata(dev);
 	if (!pci_is_enabled(dev) && is_enable_cmd(value)) {
@@ -83,6 +103,19 @@ static int command_write(struct pci_dev *dev, int offset, u16 value, void *data)
 		}
 	}
 
+	cmd->val = value;
+
+	if (!permissive && (!dev_data || !dev_data->permissive))
+		return 0;
+
+	/* Only allow the guest to control certain bits. */
+	err = pci_read_config_word(dev, offset, &val);
+	if (err || val == value)
+		return err;
+
+	value &= PCI_COMMAND_GUEST;
+	value |= val & ~PCI_COMMAND_GUEST;
+
 	return pci_write_config_word(dev, offset, value);
 }
 
@@ -282,6 +315,8 @@ static const struct config_field header_common[] = {
 	{
 	 .offset    = PCI_COMMAND,
 	 .size      = 2,
+	 .init      = command_init,
+	 .release   = bar_release,
 	 .u.w.read  = command_read,
 	 .u.w.write = command_write,
 	},
diff --git a/drivers/xen/xen-scsiback.c b/drivers/xen/xen-scsiback.c
index 61653a0..42bd55a 100644
--- a/drivers/xen/xen-scsiback.c
+++ b/drivers/xen/xen-scsiback.c
@@ -709,12 +709,11 @@ static int prepare_pending_reqs(struct vscsibk_info *info,
 static int scsiback_do_cmd_fn(struct vscsibk_info *info)
 {
 	struct vscsiif_back_ring *ring = &info->ring;
-	struct vscsiif_request *ring_req;
+	struct vscsiif_request ring_req;
 	struct vscsibk_pend *pending_req;
 	RING_IDX rc, rp;
 	int err, more_to_do;
 	uint32_t result;
-	uint8_t act;
 
 	rc = ring->req_cons;
 	rp = ring->sring->req_prod;
@@ -735,11 +734,10 @@ static int scsiback_do_cmd_fn(struct vscsibk_info *info)
 		if (!pending_req)
 			return 1;
 
-		ring_req = RING_GET_REQUEST(ring, rc);
+		ring_req = *RING_GET_REQUEST(ring, rc);
 		ring->req_cons = ++rc;
 
-		act = ring_req->act;
-		err = prepare_pending_reqs(info, ring_req, pending_req);
+		err = prepare_pending_reqs(info, &ring_req, pending_req);
 		if (err) {
 			switch (err) {
 			case -ENODEV:
@@ -755,9 +753,9 @@ static int scsiback_do_cmd_fn(struct vscsibk_info *info)
 			return 1;
 		}
 
-		switch (act) {
+		switch (ring_req.act) {
 		case VSCSIIF_ACT_SCSI_CDB:
-			if (scsiback_gnttab_data_map(ring_req, pending_req)) {
+			if (scsiback_gnttab_data_map(&ring_req, pending_req)) {
 				scsiback_fast_flush_area(pending_req);
 				scsiback_do_resp_with_sense(NULL,
 					DRIVER_ERROR << 24, 0, pending_req);
@@ -768,7 +766,7 @@ static int scsiback_do_cmd_fn(struct vscsibk_info *info)
 			break;
 		case VSCSIIF_ACT_SCSI_ABORT:
 			scsiback_device_action(pending_req, TMR_ABORT_TASK,
-				ring_req->ref_rqid);
+				ring_req.ref_rqid);
 			break;
 		case VSCSIIF_ACT_SCSI_RESET:
 			scsiback_device_action(pending_req, TMR_LUN_RESET, 0);
@@ -1661,11 +1659,8 @@ static int scsiback_make_nexus(struct scsiback_tpg *tpg,
 			 name);
 		goto out;
 	}
-	/*
-	 * Now register the TCM pvscsi virtual I_T Nexus as active with the
-	 * call to __transport_register_session()
-	 */
-	__transport_register_session(se_tpg, tv_nexus->tvn_se_sess->se_node_acl,
+	/* Now register the TCM pvscsi virtual I_T Nexus as active. */
+	transport_register_session(se_tpg, tv_nexus->tvn_se_sess->se_node_acl,
 			tv_nexus->tvn_se_sess, tv_nexus);
 	tpg->tpg_nexus = tv_nexus;
 
diff --git a/fs/affs/file.c b/fs/affs/file.c
index d2468bf..a91795e 100644
--- a/fs/affs/file.c
+++ b/fs/affs/file.c
@@ -699,8 +699,10 @@ static int affs_write_end_ofs(struct file *file, struct address_space *mapping,
 	boff = tmp % bsize;
 	if (boff) {
 		bh = affs_bread_ino(inode, bidx, 0);
-		if (IS_ERR(bh))
-			return PTR_ERR(bh);
+		if (IS_ERR(bh)) {
+			written = PTR_ERR(bh);
+			goto err_first_bh;
+		}
 		tmp = min(bsize - boff, to - from);
 		BUG_ON(boff + tmp > bsize || tmp > bsize);
 		memcpy(AFFS_DATA(bh) + boff, data + from, tmp);
@@ -712,14 +714,16 @@ static int affs_write_end_ofs(struct file *file, struct address_space *mapping,
 		bidx++;
 	} else if (bidx) {
 		bh = affs_bread_ino(inode, bidx - 1, 0);
-		if (IS_ERR(bh))
-			return PTR_ERR(bh);
+		if (IS_ERR(bh)) {
+			written = PTR_ERR(bh);
+			goto err_first_bh;
+		}
 	}
 	while (from + bsize <= to) {
 		prev_bh = bh;
 		bh = affs_getemptyblk_ino(inode, bidx);
 		if (IS_ERR(bh))
-			goto out;
+			goto err_bh;
 		memcpy(AFFS_DATA(bh), data + from, bsize);
 		if (buffer_new(bh)) {
 			AFFS_DATA_HEAD(bh)->ptype = cpu_to_be32(T_DATA);
@@ -751,7 +755,7 @@ static int affs_write_end_ofs(struct file *file, struct address_space *mapping,
 		prev_bh = bh;
 		bh = affs_bread_ino(inode, bidx, 1);
 		if (IS_ERR(bh))
-			goto out;
+			goto err_bh;
 		tmp = min(bsize, to - from);
 		BUG_ON(tmp > bsize);
 		memcpy(AFFS_DATA(bh), data + from, tmp);
@@ -790,12 +794,13 @@ done:
 	if (tmp > inode->i_size)
 		inode->i_size = AFFS_I(inode)->mmu_private = tmp;
 
+err_first_bh:
 	unlock_page(page);
 	page_cache_release(page);
 
 	return written;
 
-out:
+err_bh:
 	bh = prev_bh;
 	if (!written)
 		written = PTR_ERR(bh);
diff --git a/fs/aio.c b/fs/aio.c
index f8e52a1..a793f70 100644
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -278,11 +278,11 @@ static int aio_ring_mmap(struct file *file, struct vm_area_struct *vma)
 	return 0;
 }
 
-static void aio_ring_remap(struct file *file, struct vm_area_struct *vma)
+static int aio_ring_remap(struct file *file, struct vm_area_struct *vma)
 {
 	struct mm_struct *mm = vma->vm_mm;
 	struct kioctx_table *table;
-	int i;
+	int i, res = -EINVAL;
 
 	spin_lock(&mm->ioctx_lock);
 	rcu_read_lock();
@@ -292,13 +292,17 @@ static void aio_ring_remap(struct file *file, struct vm_area_struct *vma)
 
 		ctx = table->table[i];
 		if (ctx && ctx->aio_ring_file == file) {
-			ctx->user_id = ctx->mmap_base = vma->vm_start;
+			if (!atomic_read(&ctx->dead)) {
+				ctx->user_id = ctx->mmap_base = vma->vm_start;
+				res = 0;
+			}
 			break;
 		}
 	}
 
 	rcu_read_unlock();
 	spin_unlock(&mm->ioctx_lock);
+	return res;
 }
 
 static const struct file_operations aio_ring_fops = {
@@ -727,6 +731,9 @@ static struct kioctx *ioctx_alloc(unsigned nr_events)
 err_cleanup:
 	aio_nr_sub(ctx->max_reqs);
 err_ctx:
+	atomic_set(&ctx->dead, 1);
+	if (ctx->mmap_size)
+		vm_munmap(ctx->mmap_base, ctx->mmap_size);
 	aio_free_ring(ctx);
 err:
 	mutex_unlock(&ctx->ring_lock);
@@ -748,11 +755,12 @@ static int kill_ioctx(struct mm_struct *mm, struct kioctx *ctx,
 {
 	struct kioctx_table *table;
 
-	if (atomic_xchg(&ctx->dead, 1))
+	spin_lock(&mm->ioctx_lock);
+	if (atomic_xchg(&ctx->dead, 1)) {
+		spin_unlock(&mm->ioctx_lock);
 		return -EINVAL;
+	}
 
-
-	spin_lock(&mm->ioctx_lock);
 	table = rcu_dereference_raw(mm->ioctx_table);
 	WARN_ON(ctx != table->table[ctx->id]);
 	table->table[ctx->id] = NULL;
diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c
index 9936421..6d67f32 100644
--- a/fs/btrfs/ctree.c
+++ b/fs/btrfs/ctree.c
@@ -1645,14 +1645,14 @@ int btrfs_realloc_node(struct btrfs_trans_handle *trans,
 
 	parent_nritems = btrfs_header_nritems(parent);
 	blocksize = root->nodesize;
-	end_slot = parent_nritems;
+	end_slot = parent_nritems - 1;
 
-	if (parent_nritems == 1)
+	if (parent_nritems <= 1)
 		return 0;
 
 	btrfs_set_lock_blocking(parent);
 
-	for (i = start_slot; i < end_slot; i++) {
+	for (i = start_slot; i <= end_slot; i++) {
 		int close = 1;
 
 		btrfs_node_key(parent, &disk_key, i);
@@ -1669,7 +1669,7 @@ int btrfs_realloc_node(struct btrfs_trans_handle *trans,
 			other = btrfs_node_blockptr(parent, i - 1);
 			close = close_blocks(blocknr, other, blocksize);
 		}
-		if (!close && i < end_slot - 2) {
+		if (!close && i < end_slot) {
 			other = btrfs_node_blockptr(parent, i + 1);
 			close = close_blocks(blocknr, other, blocksize);
 		}
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 84c3b00..f9c89ca 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -3387,6 +3387,8 @@ int btrfs_inc_extent_ref(struct btrfs_trans_handle *trans,
 
 int btrfs_write_dirty_block_groups(struct btrfs_trans_handle *trans,
 				    struct btrfs_root *root);
+int btrfs_setup_space_cache(struct btrfs_trans_handle *trans,
+			    struct btrfs_root *root);
 int btrfs_extent_readonly(struct btrfs_root *root, u64 bytenr);
 int btrfs_free_block_groups(struct btrfs_fs_info *info);
 int btrfs_read_block_groups(struct btrfs_root *root);
@@ -3909,6 +3911,9 @@ int btrfs_prealloc_file_range_trans(struct inode *inode,
 				    loff_t actual_len, u64 *alloc_hint);
 int btrfs_inode_check_errors(struct inode *inode);
 extern const struct dentry_operations btrfs_dentry_operations;
+#ifdef CONFIG_BTRFS_FS_RUN_SANITY_TESTS
+void btrfs_test_inode_set_ops(struct inode *inode);
+#endif
 
 /* ioctl.c */
 long btrfs_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index f79f385..639f266 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -3921,7 +3921,7 @@ static int btrfs_check_super_valid(struct btrfs_fs_info *fs_info,
 	}
 	if (btrfs_super_sys_array_size(sb) < sizeof(struct btrfs_disk_key)
 			+ sizeof(struct btrfs_chunk)) {
-		printk(KERN_ERR "BTRFS: system chunk array too small %u < %lu\n",
+		printk(KERN_ERR "BTRFS: system chunk array too small %u < %zu\n",
 				btrfs_super_sys_array_size(sb),
 				sizeof(struct btrfs_disk_key)
 				+ sizeof(struct btrfs_chunk));
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 571f402..8b353ad 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -3208,6 +3208,8 @@ static int cache_save_setup(struct btrfs_block_group_cache *block_group,
 		return 0;
 	}
 
+	if (trans->aborted)
+		return 0;
 again:
 	inode = lookup_free_space_inode(root, block_group, path);
 	if (IS_ERR(inode) && PTR_ERR(inode) != -ENOENT) {
@@ -3243,6 +3245,20 @@ again:
 	 */
 	BTRFS_I(inode)->generation = 0;
 	ret = btrfs_update_inode(trans, root, inode);
+	if (ret) {
+		/*
+		 * So theoretically we could recover from this, simply set the
+		 * super cache generation to 0 so we know to invalidate the
+		 * cache, but then we'd have to keep track of the block groups
+		 * that fail this way so we know we _have_ to reset this cache
+		 * before the next commit or risk reading stale cache.  So to
+		 * limit our exposure to horrible edge cases lets just abort the
+		 * transaction, this only happens in really bad situations
+		 * anyway.
+		 */
+		btrfs_abort_transaction(trans, root, ret);
+		goto out_put;
+	}
 	WARN_ON(ret);
 
 	if (i_size_read(inode) > 0) {
@@ -3309,6 +3325,32 @@ out:
 	return ret;
 }
 
+int btrfs_setup_space_cache(struct btrfs_trans_handle *trans,
+			    struct btrfs_root *root)
+{
+	struct btrfs_block_group_cache *cache, *tmp;
+	struct btrfs_transaction *cur_trans = trans->transaction;
+	struct btrfs_path *path;
+
+	if (list_empty(&cur_trans->dirty_bgs) ||
+	    !btrfs_test_opt(root, SPACE_CACHE))
+		return 0;
+
+	path = btrfs_alloc_path();
+	if (!path)
+		return -ENOMEM;
+
+	/* Could add new block groups, use _safe just in case */
+	list_for_each_entry_safe(cache, tmp, &cur_trans->dirty_bgs,
+				 dirty_list) {
+		if (cache->disk_cache_state == BTRFS_DC_CLEAR)
+			cache_save_setup(cache, trans, path);
+	}
+
+	btrfs_free_path(path);
+	return 0;
+}
+
 int btrfs_write_dirty_block_groups(struct btrfs_trans_handle *trans,
 				   struct btrfs_root *root)
 {
@@ -5094,7 +5136,11 @@ int btrfs_delalloc_reserve_metadata(struct inode *inode, u64 num_bytes)
 	num_bytes = ALIGN(num_bytes, root->sectorsize);
 
 	spin_lock(&BTRFS_I(inode)->lock);
-	BTRFS_I(inode)->outstanding_extents++;
+	nr_extents = (unsigned)div64_u64(num_bytes +
+					 BTRFS_MAX_EXTENT_SIZE - 1,
+					 BTRFS_MAX_EXTENT_SIZE);
+	BTRFS_I(inode)->outstanding_extents += nr_extents;
+	nr_extents = 0;
 
 	if (BTRFS_I(inode)->outstanding_extents >
 	    BTRFS_I(inode)->reserved_extents)
@@ -5239,6 +5285,9 @@ void btrfs_delalloc_release_metadata(struct inode *inode, u64 num_bytes)
 	if (dropped > 0)
 		to_free += btrfs_calc_trans_metadata_size(root, dropped);
 
+	if (btrfs_test_is_dummy_root(root))
+		return;
+
 	trace_btrfs_space_reservation(root->fs_info, "delalloc",
 				      btrfs_ino(inode), to_free, 0);
 	if (root->fs_info->quota_enabled) {
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index c7233ff..d688cfe 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -4968,6 +4968,12 @@ static int release_extent_buffer(struct extent_buffer *eb)
 
 		/* Should be safe to release our pages at this point */
 		btrfs_release_extent_buffer_page(eb);
+#ifdef CONFIG_BTRFS_FS_RUN_SANITY_TESTS
+		if (unlikely(test_bit(EXTENT_BUFFER_DUMMY, &eb->bflags))) {
+			__free_extent_buffer(eb);
+			return 1;
+		}
+#endif
 		call_rcu(&eb->rcu_head, btrfs_release_extent_buffer_rcu);
 		return 1;
 	}
diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index b78bbba..30982bb 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -1811,22 +1811,10 @@ static ssize_t btrfs_file_write_iter(struct kiocb *iocb,
 	mutex_unlock(&inode->i_mutex);
 
 	/*
-	 * we want to make sure fsync finds this change
-	 * but we haven't joined a transaction running right now.
-	 *
-	 * Later on, someone is sure to update the inode and get the
-	 * real transid recorded.
-	 *
-	 * We set last_trans now to the fs_info generation + 1,
-	 * this will either be one more than the running transaction
-	 * or the generation used for the next transaction if there isn't
-	 * one running right now.
-	 *
 	 * We also have to set last_sub_trans to the current log transid,
 	 * otherwise subsequent syncs to a file that's been synced in this
 	 * transaction will appear to have already occured.
 	 */
-	BTRFS_I(inode)->last_trans = root->fs_info->generation + 1;
 	BTRFS_I(inode)->last_sub_trans = root->log_transid;
 	if (num_written > 0) {
 		err = generic_write_sync(file, pos, num_written);
@@ -1959,25 +1947,37 @@ int btrfs_sync_file(struct file *file, loff_t start, loff_t end, int datasync)
 	atomic_inc(&root->log_batch);
 
 	/*
-	 * check the transaction that last modified this inode
-	 * and see if its already been committed
-	 */
-	if (!BTRFS_I(inode)->last_trans) {
-		mutex_unlock(&inode->i_mutex);
-		goto out;
-	}
-
-	/*
-	 * if the last transaction that changed this file was before
-	 * the current transaction, we can bail out now without any
-	 * syncing
+	 * If the last transaction that changed this file was before the current
+	 * transaction and we have the full sync flag set in our inode, we can
+	 * bail out now without any syncing.
+	 *
+	 * Note that we can't bail out if the full sync flag isn't set. This is
+	 * because when the full sync flag is set we start all ordered extents
+	 * and wait for them to fully complete - when they complete they update
+	 * the inode's last_trans field through:
+	 *
+	 *     btrfs_finish_ordered_io() ->
+	 *         btrfs_update_inode_fallback() ->
+	 *             btrfs_update_inode() ->
+	 *                 btrfs_set_inode_last_trans()
+	 *
+	 * So we are sure that last_trans is up to date and can do this check to
+	 * bail out safely. For the fast path, when the full sync flag is not
+	 * set in our inode, we can not do it because we start only our ordered
+	 * extents and don't wait for them to complete (that is when
+	 * btrfs_finish_ordered_io runs), so here at this point their last_trans
+	 * value might be less than or equals to fs_info->last_trans_committed,
+	 * and setting a speculative last_trans for an inode when a buffered
+	 * write is made (such as fs_info->generation + 1 for example) would not
+	 * be reliable since after setting the value and before fsync is called
+	 * any number of transactions can start and commit (transaction kthread
+	 * commits the current transaction periodically), and a transaction
+	 * commit does not start nor waits for ordered extents to complete.
 	 */
 	smp_mb();
 	if (btrfs_inode_in_log(inode, root->fs_info->generation) ||
-	    BTRFS_I(inode)->last_trans <=
-	    root->fs_info->last_trans_committed) {
-		BTRFS_I(inode)->last_trans = 0;
-
+	    (full_sync && BTRFS_I(inode)->last_trans <=
+	     root->fs_info->last_trans_committed)) {
 		/*
 		 * We'v had everything committed since the last time we were
 		 * modified so clear this flag in case it was set for whatever
@@ -2275,6 +2275,8 @@ static int btrfs_punch_hole(struct inode *inode, loff_t offset, loff_t len)
 	bool same_page;
 	bool no_holes = btrfs_fs_incompat(root->fs_info, NO_HOLES);
 	u64 ino_size;
+	bool truncated_page = false;
+	bool updated_inode = false;
 
 	ret = btrfs_wait_ordered_range(inode, offset, len);
 	if (ret)
@@ -2306,13 +2308,18 @@ static int btrfs_punch_hole(struct inode *inode, loff_t offset, loff_t len)
 	 * entire page.
 	 */
 	if (same_page && len < PAGE_CACHE_SIZE) {
-		if (offset < ino_size)
+		if (offset < ino_size) {
+			truncated_page = true;
 			ret = btrfs_truncate_page(inode, offset, len, 0);
+		} else {
+			ret = 0;
+		}
 		goto out_only_mutex;
 	}
 
 	/* zero back part of the first page */
 	if (offset < ino_size) {
+		truncated_page = true;
 		ret = btrfs_truncate_page(inode, offset, 0, 0);
 		if (ret) {
 			mutex_unlock(&inode->i_mutex);
@@ -2348,6 +2355,7 @@ static int btrfs_punch_hole(struct inode *inode, loff_t offset, loff_t len)
 		if (!ret) {
 			/* zero the front end of the last page */
 			if (tail_start + tail_len < ino_size) {
+				truncated_page = true;
 				ret = btrfs_truncate_page(inode,
 						tail_start + tail_len, 0, 1);
 				if (ret)
@@ -2357,8 +2365,8 @@ static int btrfs_punch_hole(struct inode *inode, loff_t offset, loff_t len)
 	}
 
 	if (lockend < lockstart) {
-		mutex_unlock(&inode->i_mutex);
-		return 0;
+		ret = 0;
+		goto out_only_mutex;
 	}
 
 	while (1) {
@@ -2506,6 +2514,7 @@ out_trans:
 
 	trans->block_rsv = &root->fs_info->trans_block_rsv;
 	ret = btrfs_update_inode(trans, root, inode);
+	updated_inode = true;
 	btrfs_end_transaction(trans, root);
 	btrfs_btree_balance_dirty(root);
 out_free:
@@ -2515,6 +2524,22 @@ out:
 	unlock_extent_cached(&BTRFS_I(inode)->io_tree, lockstart, lockend,
 			     &cached_state, GFP_NOFS);
 out_only_mutex:
+	if (!updated_inode && truncated_page && !ret && !err) {
+		/*
+		 * If we only end up zeroing part of a page, we still need to
+		 * update the inode item, so that all the time fields are
+		 * updated as well as the necessary btrfs inode in memory fields
+		 * for detecting, at fsync time, if the inode isn't yet in the
+		 * log tree or it's there but not up to date.
+		 */
+		trans = btrfs_start_transaction(root, 1);
+		if (IS_ERR(trans)) {
+			err = PTR_ERR(trans);
+		} else {
+			err = btrfs_update_inode(trans, root, inode);
+			ret = btrfs_end_transaction(trans, root);
+		}
+	}
 	mutex_unlock(&inode->i_mutex);
 	if (ret && !err)
 		err = ret;
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index a85c23d..d2e732d 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -108,6 +108,13 @@ static struct extent_map *create_pinned_em(struct inode *inode, u64 start,
 
 static int btrfs_dirty_inode(struct inode *inode);
 
+#ifdef CONFIG_BTRFS_FS_RUN_SANITY_TESTS
+void btrfs_test_inode_set_ops(struct inode *inode)
+{
+	BTRFS_I(inode)->io_tree.ops = &btrfs_extent_io_ops;
+}
+#endif
+
 static int btrfs_init_inode_security(struct btrfs_trans_handle *trans,
 				     struct inode *inode,  struct inode *dir,
 				     const struct qstr *qstr)
@@ -1542,30 +1549,17 @@ static void btrfs_split_extent_hook(struct inode *inode,
 		u64 new_size;
 
 		/*
-		 * We need the largest size of the remaining extent to see if we
-		 * need to add a new outstanding extent.  Think of the following
-		 * case
-		 *
-		 * [MEAX_EXTENT_SIZEx2 - 4k][4k]
-		 *
-		 * The new_size would just be 4k and we'd think we had enough
-		 * outstanding extents for this if we only took one side of the
-		 * split, same goes for the other direction.  We need to see if
-		 * the larger size still is the same amount of extents as the
-		 * original size, because if it is we need to add a new
-		 * outstanding extent.  But if we split up and the larger size
-		 * is less than the original then we are good to go since we've
-		 * already accounted for the extra extent in our original
-		 * accounting.
+		 * See the explanation in btrfs_merge_extent_hook, the same
+		 * applies here, just in reverse.
 		 */
 		new_size = orig->end - split + 1;
-		if ((split - orig->start) > new_size)
-			new_size = split - orig->start;
-
-		num_extents = div64_u64(size + BTRFS_MAX_EXTENT_SIZE - 1,
+		num_extents = div64_u64(new_size + BTRFS_MAX_EXTENT_SIZE - 1,
 					BTRFS_MAX_EXTENT_SIZE);
-		if (div64_u64(new_size + BTRFS_MAX_EXTENT_SIZE - 1,
-			      BTRFS_MAX_EXTENT_SIZE) < num_extents)
+		new_size = split - orig->start;
+		num_extents += div64_u64(new_size + BTRFS_MAX_EXTENT_SIZE - 1,
+					BTRFS_MAX_EXTENT_SIZE);
+		if (div64_u64(size + BTRFS_MAX_EXTENT_SIZE - 1,
+			      BTRFS_MAX_EXTENT_SIZE) >= num_extents)
 			return;
 	}
 
@@ -1591,8 +1585,10 @@ static void btrfs_merge_extent_hook(struct inode *inode,
 	if (!(other->state & EXTENT_DELALLOC))
 		return;
 
-	old_size = other->end - other->start + 1;
-	new_size = old_size + (new->end - new->start + 1);
+	if (new->start > other->start)
+		new_size = new->end - other->start + 1;
+	else
+		new_size = other->end - new->start + 1;
 
 	/* we're not bigger than the max, unreserve the space and go */
 	if (new_size <= BTRFS_MAX_EXTENT_SIZE) {
@@ -1603,13 +1599,32 @@ static void btrfs_merge_extent_hook(struct inode *inode,
 	}
 
 	/*
-	 * If we grew by another max_extent, just return, we want to keep that
-	 * reserved amount.
+	 * We have to add up either side to figure out how many extents were
+	 * accounted for before we merged into one big extent.  If the number of
+	 * extents we accounted for is <= the amount we need for the new range
+	 * then we can return, otherwise drop.  Think of it like this
+	 *
+	 * [ 4k][MAX_SIZE]
+	 *
+	 * So we've grown the extent by a MAX_SIZE extent, this would mean we
+	 * need 2 outstanding extents, on one side we have 1 and the other side
+	 * we have 1 so they are == and we can return.  But in this case
+	 *
+	 * [MAX_SIZE+4k][MAX_SIZE+4k]
+	 *
+	 * Each range on their own accounts for 2 extents, but merged together
+	 * they are only 3 extents worth of accounting, so we need to drop in
+	 * this case.
 	 */
+	old_size = other->end - other->start + 1;
 	num_extents = div64_u64(old_size + BTRFS_MAX_EXTENT_SIZE - 1,
 				BTRFS_MAX_EXTENT_SIZE);
+	old_size = new->end - new->start + 1;
+	num_extents += div64_u64(old_size + BTRFS_MAX_EXTENT_SIZE - 1,
+				 BTRFS_MAX_EXTENT_SIZE);
+
 	if (div64_u64(new_size + BTRFS_MAX_EXTENT_SIZE - 1,
-		      BTRFS_MAX_EXTENT_SIZE) > num_extents)
+		      BTRFS_MAX_EXTENT_SIZE) >= num_extents)
 		return;
 
 	spin_lock(&BTRFS_I(inode)->lock);
@@ -1686,6 +1701,10 @@ static void btrfs_set_bit_hook(struct inode *inode,
 			spin_unlock(&BTRFS_I(inode)->lock);
 		}
 
+		/* For sanity tests */
+		if (btrfs_test_is_dummy_root(root))
+			return;
+
 		__percpu_counter_add(&root->fs_info->delalloc_bytes, len,
 				     root->fs_info->delalloc_batch);
 		spin_lock(&BTRFS_I(inode)->lock);
@@ -1741,6 +1760,10 @@ static void btrfs_clear_bit_hook(struct inode *inode,
 		    root != root->fs_info->tree_root)
 			btrfs_delalloc_release_metadata(inode, len);
 
+		/* For sanity tests. */
+		if (btrfs_test_is_dummy_root(root))
+			return;
+
 		if (root->root_key.objectid != BTRFS_DATA_RELOC_TREE_OBJECTID
 		    && do_list && !(state->state & EXTENT_NORESERVE))
 			btrfs_free_reserved_data_space(inode, len);
@@ -7213,7 +7236,7 @@ static int btrfs_get_blocks_direct(struct inode *inode, sector_t iblock,
 	u64 start = iblock << inode->i_blkbits;
 	u64 lockstart, lockend;
 	u64 len = bh_result->b_size;
-	u64 orig_len = len;
+	u64 *outstanding_extents = NULL;
 	int unlock_bits = EXTENT_LOCKED;
 	int ret = 0;
 
@@ -7225,6 +7248,16 @@ static int btrfs_get_blocks_direct(struct inode *inode, sector_t iblock,
 	lockstart = start;
 	lockend = start + len - 1;
 
+	if (current->journal_info) {
+		/*
+		 * Need to pull our outstanding extents and set journal_info to NULL so
+		 * that anything that needs to check if there's a transction doesn't get
+		 * confused.
+		 */
+		outstanding_extents = current->journal_info;
+		current->journal_info = NULL;
+	}
+
 	/*
 	 * If this errors out it's because we couldn't invalidate pagecache for
 	 * this range and we need to fallback to buffered.
@@ -7285,7 +7318,6 @@ static int btrfs_get_blocks_direct(struct inode *inode, sector_t iblock,
 	    ((BTRFS_I(inode)->flags & BTRFS_INODE_NODATACOW) &&
 	     em->block_start != EXTENT_MAP_HOLE)) {
 		int type;
-		int ret;
 		u64 block_start, orig_start, orig_block_len, ram_bytes;
 
 		if (test_bit(EXTENT_FLAG_PREALLOC, &em->flags))
@@ -7349,11 +7381,20 @@ unlock:
 		if (start + len > i_size_read(inode))
 			i_size_write(inode, start + len);
 
-		if (len < orig_len) {
+		/*
+		 * If we have an outstanding_extents count still set then we're
+		 * within our reservation, otherwise we need to adjust our inode
+		 * counter appropriately.
+		 */
+		if (*outstanding_extents) {
+			(*outstanding_extents)--;
+		} else {
 			spin_lock(&BTRFS_I(inode)->lock);
 			BTRFS_I(inode)->outstanding_extents++;
 			spin_unlock(&BTRFS_I(inode)->lock);
 		}
+
+		current->journal_info = outstanding_extents;
 		btrfs_free_reserved_data_space(inode, len);
 	}
 
@@ -7377,6 +7418,8 @@ unlock:
 unlock_err:
 	clear_extent_bit(&BTRFS_I(inode)->io_tree, lockstart, lockend,
 			 unlock_bits, 1, 0, &cached_state, GFP_NOFS);
+	if (outstanding_extents)
+		current->journal_info = outstanding_extents;
 	return ret;
 }
 
@@ -8076,6 +8119,7 @@ static ssize_t btrfs_direct_IO(int rw, struct kiocb *iocb,
 {
 	struct file *file = iocb->ki_filp;
 	struct inode *inode = file->f_mapping->host;
+	u64 outstanding_extents = 0;
 	size_t count = 0;
 	int flags = 0;
 	bool wakeup = true;
@@ -8113,6 +8157,16 @@ static ssize_t btrfs_direct_IO(int rw, struct kiocb *iocb,
 		ret = btrfs_delalloc_reserve_space(inode, count);
 		if (ret)
 			goto out;
+		outstanding_extents = div64_u64(count +
+						BTRFS_MAX_EXTENT_SIZE - 1,
+						BTRFS_MAX_EXTENT_SIZE);
+
+		/*
+		 * We need to know how many extents we reserved so that we can
+		 * do the accounting properly if we go over the number we
+		 * originally calculated.  Abuse current->journal_info for this.
+		 */
+		current->journal_info = &outstanding_extents;
 	} else if (test_bit(BTRFS_INODE_READDIO_NEED_LOCK,
 				     &BTRFS_I(inode)->runtime_flags)) {
 		inode_dio_done(inode);
@@ -8125,6 +8179,7 @@ static ssize_t btrfs_direct_IO(int rw, struct kiocb *iocb,
 			iter, offset, btrfs_get_blocks_direct, NULL,
 			btrfs_submit_direct, flags);
 	if (rw & WRITE) {
+		current->journal_info = NULL;
 		if (ret < 0 && ret != -EIOCBQUEUED)
 			btrfs_delalloc_release_space(inode, count);
 		else if (ret >= 0 && (size_t)ret < count)
diff --git a/fs/btrfs/ordered-data.c b/fs/btrfs/ordered-data.c
index 534544e..157cc54 100644
--- a/fs/btrfs/ordered-data.c
+++ b/fs/btrfs/ordered-data.c
@@ -452,9 +452,7 @@ void btrfs_get_logged_extents(struct inode *inode,
 			continue;
 		if (entry_end(ordered) <= start)
 			break;
-		if (!list_empty(&ordered->log_list))
-			continue;
-		if (test_bit(BTRFS_ORDERED_LOGGED, &ordered->flags))
+		if (test_and_set_bit(BTRFS_ORDERED_LOGGED, &ordered->flags))
 			continue;
 		list_add(&ordered->log_list, logged_list);
 		atomic_inc(&ordered->refs);
@@ -511,8 +509,7 @@ void btrfs_wait_logged_extents(struct btrfs_trans_handle *trans,
 		wait_event(ordered->wait, test_bit(BTRFS_ORDERED_IO_DONE,
 						   &ordered->flags));
 
-		if (!test_and_set_bit(BTRFS_ORDERED_LOGGED, &ordered->flags))
-			list_add_tail(&ordered->trans_list, &trans->ordered);
+		list_add_tail(&ordered->trans_list, &trans->ordered);
 		spin_lock_irq(&log->log_extents_lock[index]);
 	}
 	spin_unlock_irq(&log->log_extents_lock[index]);
diff --git a/fs/btrfs/qgroup.c b/fs/btrfs/qgroup.c
index 97159a8..058c79e 100644
--- a/fs/btrfs/qgroup.c
+++ b/fs/btrfs/qgroup.c
@@ -1259,7 +1259,7 @@ static int comp_oper(struct btrfs_qgroup_operation *oper1,
 	if (oper1->seq < oper2->seq)
 		return -1;
 	if (oper1->seq > oper2->seq)
-		return -1;
+		return 1;
 	if (oper1->ref_root < oper2->ref_root)
 		return -1;
 	if (oper1->ref_root > oper2->ref_root)
diff --git a/fs/btrfs/send.c b/fs/btrfs/send.c
index fe58572..d6033f5 100644
--- a/fs/btrfs/send.c
+++ b/fs/btrfs/send.c
@@ -230,6 +230,7 @@ struct pending_dir_move {
 	u64 parent_ino;
 	u64 ino;
 	u64 gen;
+	bool is_orphan;
 	struct list_head update_refs;
 };
 
@@ -2984,7 +2985,8 @@ static int add_pending_dir_move(struct send_ctx *sctx,
 				u64 ino_gen,
 				u64 parent_ino,
 				struct list_head *new_refs,
-				struct list_head *deleted_refs)
+				struct list_head *deleted_refs,
+				const bool is_orphan)
 {
 	struct rb_node **p = &sctx->pending_dir_moves.rb_node;
 	struct rb_node *parent = NULL;
@@ -2999,6 +3001,7 @@ static int add_pending_dir_move(struct send_ctx *sctx,
 	pm->parent_ino = parent_ino;
 	pm->ino = ino;
 	pm->gen = ino_gen;
+	pm->is_orphan = is_orphan;
 	INIT_LIST_HEAD(&pm->list);
 	INIT_LIST_HEAD(&pm->update_refs);
 	RB_CLEAR_NODE(&pm->node);
@@ -3131,16 +3134,20 @@ static int apply_dir_move(struct send_ctx *sctx, struct pending_dir_move *pm)
 	rmdir_ino = dm->rmdir_ino;
 	free_waiting_dir_move(sctx, dm);
 
-	ret = get_first_ref(sctx->parent_root, pm->ino,
-			    &parent_ino, &parent_gen, name);
-	if (ret < 0)
-		goto out;
-
-	ret = get_cur_path(sctx, parent_ino, parent_gen,
-			   from_path);
-	if (ret < 0)
-		goto out;
-	ret = fs_path_add_path(from_path, name);
+	if (pm->is_orphan) {
+		ret = gen_unique_name(sctx, pm->ino,
+				      pm->gen, from_path);
+	} else {
+		ret = get_first_ref(sctx->parent_root, pm->ino,
+				    &parent_ino, &parent_gen, name);
+		if (ret < 0)
+			goto out;
+		ret = get_cur_path(sctx, parent_ino, parent_gen,
+				   from_path);
+		if (ret < 0)
+			goto out;
+		ret = fs_path_add_path(from_path, name);
+	}
 	if (ret < 0)
 		goto out;
 
@@ -3150,7 +3157,8 @@ static int apply_dir_move(struct send_ctx *sctx, struct pending_dir_move *pm)
 		LIST_HEAD(deleted_refs);
 		ASSERT(ancestor > BTRFS_FIRST_FREE_OBJECTID);
 		ret = add_pending_dir_move(sctx, pm->ino, pm->gen, ancestor,
-					   &pm->update_refs, &deleted_refs);
+					   &pm->update_refs, &deleted_refs,
+					   pm->is_orphan);
 		if (ret < 0)
 			goto out;
 		if (rmdir_ino) {
@@ -3283,6 +3291,127 @@ out:
 	return ret;
 }
 
+/*
+ * We might need to delay a directory rename even when no ancestor directory
+ * (in the send root) with a higher inode number than ours (sctx->cur_ino) was
+ * renamed. This happens when we rename a directory to the old name (the name
+ * in the parent root) of some other unrelated directory that got its rename
+ * delayed due to some ancestor with higher number that got renamed.
+ *
+ * Example:
+ *
+ * Parent snapshot:
+ * .                                       (ino 256)
+ * |---- a/                                (ino 257)
+ * |     |---- file                        (ino 260)
+ * |
+ * |---- b/                                (ino 258)
+ * |---- c/                                (ino 259)
+ *
+ * Send snapshot:
+ * .                                       (ino 256)
+ * |---- a/                                (ino 258)
+ * |---- x/                                (ino 259)
+ *       |---- y/                          (ino 257)
+ *             |----- file                 (ino 260)
+ *
+ * Here we can not rename 258 from 'b' to 'a' without the rename of inode 257
+ * from 'a' to 'x/y' happening first, which in turn depends on the rename of
+ * inode 259 from 'c' to 'x'. So the order of rename commands the send stream
+ * must issue is:
+ *
+ * 1 - rename 259 from 'c' to 'x'
+ * 2 - rename 257 from 'a' to 'x/y'
+ * 3 - rename 258 from 'b' to 'a'
+ *
+ * Returns 1 if the rename of sctx->cur_ino needs to be delayed, 0 if it can
+ * be done right away and < 0 on error.
+ */
+static int wait_for_dest_dir_move(struct send_ctx *sctx,
+				  struct recorded_ref *parent_ref,
+				  const bool is_orphan)
+{
+	struct btrfs_path *path;
+	struct btrfs_key key;
+	struct btrfs_key di_key;
+	struct btrfs_dir_item *di;
+	u64 left_gen;
+	u64 right_gen;
+	int ret = 0;
+
+	if (RB_EMPTY_ROOT(&sctx->waiting_dir_moves))
+		return 0;
+
+	path = alloc_path_for_send();
+	if (!path)
+		return -ENOMEM;
+
+	key.objectid = parent_ref->dir;
+	key.type = BTRFS_DIR_ITEM_KEY;
+	key.offset = btrfs_name_hash(parent_ref->name, parent_ref->name_len);
+
+	ret = btrfs_search_slot(NULL, sctx->parent_root, &key, path, 0, 0);
+	if (ret < 0) {
+		goto out;
+	} else if (ret > 0) {
+		ret = 0;
+		goto out;
+	}
+
+	di = btrfs_match_dir_item_name(sctx->parent_root, path,
+				       parent_ref->name, parent_ref->name_len);
+	if (!di) {
+		ret = 0;
+		goto out;
+	}
+	/*
+	 * di_key.objectid has the number of the inode that has a dentry in the
+	 * parent directory with the same name that sctx->cur_ino is being
+	 * renamed to. We need to check if that inode is in the send root as
+	 * well and if it is currently marked as an inode with a pending rename,
+	 * if it is, we need to delay the rename of sctx->cur_ino as well, so
+	 * that it happens after that other inode is renamed.
+	 */
+	btrfs_dir_item_key_to_cpu(path->nodes[0], di, &di_key);
+	if (di_key.type != BTRFS_INODE_ITEM_KEY) {
+		ret = 0;
+		goto out;
+	}
+
+	ret = get_inode_info(sctx->parent_root, di_key.objectid, NULL,
+			     &left_gen, NULL, NULL, NULL, NULL);
+	if (ret < 0)
+		goto out;
+	ret = get_inode_info(sctx->send_root, di_key.objectid, NULL,
+			     &right_gen, NULL, NULL, NULL, NULL);
+	if (ret < 0) {
+		if (ret == -ENOENT)
+			ret = 0;
+		goto out;
+	}
+
+	/* Different inode, no need to delay the rename of sctx->cur_ino */
+	if (right_gen != left_gen) {
+		ret = 0;
+		goto out;
+	}
+
+	if (is_waiting_for_move(sctx, di_key.objectid)) {
+		ret = add_pending_dir_move(sctx,
+					   sctx->cur_ino,
+					   sctx->cur_inode_gen,
+					   di_key.objectid,
+					   &sctx->new_refs,
+					   &sctx->deleted_refs,
+					   is_orphan);
+		if (!ret)
+			ret = 1;
+	}
+out:
+	btrfs_free_path(path);
+	return ret;
+}
+
 static int wait_for_parent_move(struct send_ctx *sctx,
 				struct recorded_ref *parent_ref)
 {
@@ -3349,7 +3478,8 @@ out:
 					   sctx->cur_inode_gen,
 					   ino,
 					   &sctx->new_refs,
-					   &sctx->deleted_refs);
+					   &sctx->deleted_refs,
+					   false);
 		if (!ret)
 			ret = 1;
 	}
@@ -3372,6 +3502,7 @@ static int process_recorded_refs(struct send_ctx *sctx, int *pending_move)
 	int did_overwrite = 0;
 	int is_orphan = 0;
 	u64 last_dir_ino_rm = 0;
+	bool can_rename = true;
 
 verbose_printk("btrfs: process_recorded_refs %llu\n", sctx->cur_ino);
 
@@ -3490,12 +3621,22 @@ verbose_printk("btrfs: process_recorded_refs %llu\n", sctx->cur_ino);
 			}
 		}
 
+		if (S_ISDIR(sctx->cur_inode_mode) && sctx->parent_root) {
+			ret = wait_for_dest_dir_move(sctx, cur, is_orphan);
+			if (ret < 0)
+				goto out;
+			if (ret == 1) {
+				can_rename = false;
+				*pending_move = 1;
+			}
+		}
+
 		/*
 		 * link/move the ref to the new place. If we have an orphan
 		 * inode, move it and update valid_path. If not, link or move
 		 * it depending on the inode mode.
 		 */
-		if (is_orphan) {
+		if (is_orphan && can_rename) {
 			ret = send_rename(sctx, valid_path, cur->full_path);
 			if (ret < 0)
 				goto out;
@@ -3503,7 +3644,7 @@ verbose_printk("btrfs: process_recorded_refs %llu\n", sctx->cur_ino);
 			ret = fs_path_copy(valid_path, cur->full_path);
 			if (ret < 0)
 				goto out;
-		} else {
+		} else if (can_rename) {
 			if (S_ISDIR(sctx->cur_inode_mode)) {
 				/*
 				 * Dirs can't be linked, so move it. For moved
diff --git a/fs/btrfs/tests/inode-tests.c b/fs/btrfs/tests/inode-tests.c
index a116b55..054fc0d 100644
--- a/fs/btrfs/tests/inode-tests.c
+++ b/fs/btrfs/tests/inode-tests.c
@@ -911,6 +911,197 @@ out:
 	return ret;
 }
 
+static int test_extent_accounting(void)
+{
+	struct inode *inode = NULL;
+	struct btrfs_root *root = NULL;
+	int ret = -ENOMEM;
+
+	inode = btrfs_new_test_inode();
+	if (!inode) {
+		test_msg("Couldn't allocate inode\n");
+		return ret;
+	}
+
+	root = btrfs_alloc_dummy_root();
+	if (IS_ERR(root)) {
+		test_msg("Couldn't allocate root\n");
+		goto out;
+	}
+
+	root->fs_info = btrfs_alloc_dummy_fs_info();
+	if (!root->fs_info) {
+		test_msg("Couldn't allocate dummy fs info\n");
+		goto out;
+	}
+
+	BTRFS_I(inode)->root = root;
+	btrfs_test_inode_set_ops(inode);
+
+	/* [BTRFS_MAX_EXTENT_SIZE] */
+	BTRFS_I(inode)->outstanding_extents++;
+	ret = btrfs_set_extent_delalloc(inode, 0, BTRFS_MAX_EXTENT_SIZE - 1,
+					NULL);
+	if (ret) {
+		test_msg("btrfs_set_extent_delalloc returned %d\n", ret);
+		goto out;
+	}
+	if (BTRFS_I(inode)->outstanding_extents != 1) {
+		ret = -EINVAL;
+		test_msg("Miscount, wanted 1, got %u\n",
+			 BTRFS_I(inode)->outstanding_extents);
+		goto out;
+	}
+
+	/* [BTRFS_MAX_EXTENT_SIZE][4k] */
+	BTRFS_I(inode)->outstanding_extents++;
+	ret = btrfs_set_extent_delalloc(inode, BTRFS_MAX_EXTENT_SIZE,
+					BTRFS_MAX_EXTENT_SIZE + 4095, NULL);
+	if (ret) {
+		test_msg("btrfs_set_extent_delalloc returned %d\n", ret);
+		goto out;
+	}
+	if (BTRFS_I(inode)->outstanding_extents != 2) {
+		ret = -EINVAL;
+		test_msg("Miscount, wanted 2, got %u\n",
+			 BTRFS_I(inode)->outstanding_extents);
+		goto out;
+	}
+
+	/* [BTRFS_MAX_EXTENT_SIZE/2][4K HOLE][the rest] */
+	ret = clear_extent_bit(&BTRFS_I(inode)->io_tree,
+			       BTRFS_MAX_EXTENT_SIZE >> 1,
+			       (BTRFS_MAX_EXTENT_SIZE >> 1) + 4095,
+			       EXTENT_DELALLOC | EXTENT_DIRTY |
+			       EXTENT_UPTODATE | EXTENT_DO_ACCOUNTING, 0, 0,
+			       NULL, GFP_NOFS);
+	if (ret) {
+		test_msg("clear_extent_bit returned %d\n", ret);
+		goto out;
+	}
+	if (BTRFS_I(inode)->outstanding_extents != 2) {
+		ret = -EINVAL;
+		test_msg("Miscount, wanted 2, got %u\n",
+			 BTRFS_I(inode)->outstanding_extents);
+		goto out;
+	}
+
+	/* [BTRFS_MAX_EXTENT_SIZE][4K] */
+	BTRFS_I(inode)->outstanding_extents++;
+	ret = btrfs_set_extent_delalloc(inode, BTRFS_MAX_EXTENT_SIZE >> 1,
+					(BTRFS_MAX_EXTENT_SIZE >> 1) + 4095,
+					NULL);
+	if (ret) {
+		test_msg("btrfs_set_extent_delalloc returned %d\n", ret);
+		goto out;
+	}
+	if (BTRFS_I(inode)->outstanding_extents != 2) {
+		ret = -EINVAL;
+		test_msg("Miscount, wanted 2, got %u\n",
+			 BTRFS_I(inode)->outstanding_extents);
+		goto out;
+	}
+
+	/*
+	 * [BTRFS_MAX_EXTENT_SIZE+4K][4K HOLE][BTRFS_MAX_EXTENT_SIZE+4K]
+	 *
+	 * I'm artificially adding 2 to outstanding_extents because in the
+	 * buffered IO case we'd add things up as we go, but I don't feel like
+	 * doing that here, this isn't the interesting case we want to test.
+	 */
+	BTRFS_I(inode)->outstanding_extents += 2;
+	ret = btrfs_set_extent_delalloc(inode, BTRFS_MAX_EXTENT_SIZE + 8192,
+					(BTRFS_MAX_EXTENT_SIZE << 1) + 12287,
+					NULL);
+	if (ret) {
+		test_msg("btrfs_set_extent_delalloc returned %d\n", ret);
+		goto out;
+	}
+	if (BTRFS_I(inode)->outstanding_extents != 4) {
+		ret = -EINVAL;
+		test_msg("Miscount, wanted 4, got %u\n",
+			 BTRFS_I(inode)->outstanding_extents);
+		goto out;
+	}
+
+	/* [BTRFS_MAX_EXTENT_SIZE+4k][4k][BTRFS_MAX_EXTENT_SIZE+4k] */
+	BTRFS_I(inode)->outstanding_extents++;
+	ret = btrfs_set_extent_delalloc(inode, BTRFS_MAX_EXTENT_SIZE+4096,
+					BTRFS_MAX_EXTENT_SIZE+8191, NULL);
+	if (ret) {
+		test_msg("btrfs_set_extent_delalloc returned %d\n", ret);
+		goto out;
+	}
+	if (BTRFS_I(inode)->outstanding_extents != 3) {
+		ret = -EINVAL;
+		test_msg("Miscount, wanted 3, got %u\n",
+			 BTRFS_I(inode)->outstanding_extents);
+		goto out;
+	}
+
+	/* [BTRFS_MAX_EXTENT_SIZE+4k][4K HOLE][BTRFS_MAX_EXTENT_SIZE+4k] */
+	ret = clear_extent_bit(&BTRFS_I(inode)->io_tree,
+			       BTRFS_MAX_EXTENT_SIZE+4096,
+			       BTRFS_MAX_EXTENT_SIZE+8191,
+			       EXTENT_DIRTY | EXTENT_DELALLOC |
+			       EXTENT_DO_ACCOUNTING | EXTENT_UPTODATE, 0, 0,
+			       NULL, GFP_NOFS);
+	if (ret) {
+		test_msg("clear_extent_bit returned %d\n", ret);
+		goto out;
+	}
+	if (BTRFS_I(inode)->outstanding_extents != 4) {
+		ret = -EINVAL;
+		test_msg("Miscount, wanted 4, got %u\n",
+			 BTRFS_I(inode)->outstanding_extents);
+		goto out;
+	}
+
+	/*
+	 * Refill the hole again just for good measure, because I thought it
+	 * might fail and I'd rather satisfy my paranoia at this point.
+	 */
+	BTRFS_I(inode)->outstanding_extents++;
+	ret = btrfs_set_extent_delalloc(inode, BTRFS_MAX_EXTENT_SIZE+4096,
+					BTRFS_MAX_EXTENT_SIZE+8191, NULL);
+	if (ret) {
+		test_msg("btrfs_set_extent_delalloc returned %d\n", ret);
+		goto out;
+	}
+	if (BTRFS_I(inode)->outstanding_extents != 3) {
+		ret = -EINVAL;
+		test_msg("Miscount, wanted 3, got %u\n",
+			 BTRFS_I(inode)->outstanding_extents);
+		goto out;
+	}
+
+	/* Empty */
+	ret = clear_extent_bit(&BTRFS_I(inode)->io_tree, 0, (u64)-1,
+			       EXTENT_DIRTY | EXTENT_DELALLOC |
+			       EXTENT_DO_ACCOUNTING | EXTENT_UPTODATE, 0, 0,
+			       NULL, GFP_NOFS);
+	if (ret) {
+		test_msg("clear_extent_bit returned %d\n", ret);
+		goto out;
+	}
+	if (BTRFS_I(inode)->outstanding_extents) {
+		ret = -EINVAL;
+		test_msg("Miscount, wanted 0, got %u\n",
+			 BTRFS_I(inode)->outstanding_extents);
+		goto out;
+	}
+	ret = 0;
+out:
+	if (ret)
+		clear_extent_bit(&BTRFS_I(inode)->io_tree, 0, (u64)-1,
+				 EXTENT_DIRTY | EXTENT_DELALLOC |
+				 EXTENT_DO_ACCOUNTING | EXTENT_UPTODATE, 0, 0,
+				 NULL, GFP_NOFS);
+	iput(inode);
+	btrfs_free_dummy_root(root);
+	return ret;
+}
+
 int btrfs_test_inodes(void)
 {
 	int ret;
@@ -924,5 +1115,9 @@ int btrfs_test_inodes(void)
 	if (ret)
 		return ret;
 	test_msg("Running hole first btrfs_get_extent test\n");
-	return test_hole_first();
+	ret = test_hole_first();
+	if (ret)
+		return ret;
+	test_msg("Running outstanding_extents tests\n");
+	return test_extent_accounting();
 }
diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c
index 7e80f32..8be4278 100644
--- a/fs/btrfs/transaction.c
+++ b/fs/btrfs/transaction.c
@@ -1023,17 +1023,13 @@ static int update_cowonly_root(struct btrfs_trans_handle *trans,
 	u64 old_root_bytenr;
 	u64 old_root_used;
 	struct btrfs_root *tree_root = root->fs_info->tree_root;
-	bool extent_root = (root->objectid == BTRFS_EXTENT_TREE_OBJECTID);
 
 	old_root_used = btrfs_root_used(&root->root_item);
-	btrfs_write_dirty_block_groups(trans, root);
 
 	while (1) {
 		old_root_bytenr = btrfs_root_bytenr(&root->root_item);
 		if (old_root_bytenr == root->node->start &&
-		    old_root_used == btrfs_root_used(&root->root_item) &&
-		    (!extent_root ||
-		     list_empty(&trans->transaction->dirty_bgs)))
+		    old_root_used == btrfs_root_used(&root->root_item))
 			break;
 
 		btrfs_set_root_node(&root->root_item, root->node);
@@ -1044,17 +1040,6 @@ static int update_cowonly_root(struct btrfs_trans_handle *trans,
 			return ret;
 
 		old_root_used = btrfs_root_used(&root->root_item);
-		if (extent_root) {
-			ret = btrfs_write_dirty_block_groups(trans, root);
-			if (ret)
-				return ret;
-		}
-		ret = btrfs_run_delayed_refs(trans, root, (unsigned long)-1);
-		if (ret)
-			return ret;
-		ret = btrfs_run_delayed_refs(trans, root, (unsigned long)-1);
-		if (ret)
-			return ret;
 	}
 
 	return 0;
@@ -1071,6 +1056,7 @@ static noinline int commit_cowonly_roots(struct btrfs_trans_handle *trans,
 					 struct btrfs_root *root)
 {
 	struct btrfs_fs_info *fs_info = root->fs_info;
+	struct list_head *dirty_bgs = &trans->transaction->dirty_bgs;
 	struct list_head *next;
 	struct extent_buffer *eb;
 	int ret;
@@ -1098,11 +1084,15 @@ static noinline int commit_cowonly_roots(struct btrfs_trans_handle *trans,
 	if (ret)
 		return ret;
 
+	ret = btrfs_setup_space_cache(trans, root);
+	if (ret)
+		return ret;
+
 	/* run_qgroups might have added some more refs */
 	ret = btrfs_run_delayed_refs(trans, root, (unsigned long)-1);
 	if (ret)
 		return ret;
-
+again:
 	while (!list_empty(&fs_info->dirty_cowonly_roots)) {
 		next = fs_info->dirty_cowonly_roots.next;
 		list_del_init(next);
@@ -1115,8 +1105,23 @@ static noinline int commit_cowonly_roots(struct btrfs_trans_handle *trans,
 		ret = update_cowonly_root(trans, root);
 		if (ret)
 			return ret;
+		ret = btrfs_run_delayed_refs(trans, root, (unsigned long)-1);
+		if (ret)
+			return ret;
 	}
 
+	while (!list_empty(dirty_bgs)) {
+		ret = btrfs_write_dirty_block_groups(trans, root);
+		if (ret)
+			return ret;
+		ret = btrfs_run_delayed_refs(trans, root, (unsigned long)-1);
+		if (ret)
+			return ret;
+	}
+
+	if (!list_empty(&fs_info->dirty_cowonly_roots))
+		goto again;
+
 	list_add_tail(&fs_info->extent_root->dirty_list,
 		      &trans->transaction->switch_commits);
 	btrfs_after_dev_replace_commit(fs_info);
@@ -1814,6 +1819,9 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans,
 
 		wait_for_commit(root, cur_trans);
 
+		if (unlikely(cur_trans->aborted))
+			ret = cur_trans->aborted;
+
 		btrfs_put_transaction(cur_trans);
 
 		return ret;
diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index 9a37f8b..c5b8ba3 100644
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -1012,7 +1012,7 @@ again:
 		base = btrfs_item_ptr_offset(leaf, path->slots[0]);
 
 		while (cur_offset < item_size) {
-			extref = (struct btrfs_inode_extref *)base + cur_offset;
+			extref = (struct btrfs_inode_extref *)(base + cur_offset);
 
 			victim_name_len = btrfs_inode_extref_name_len(leaf, extref);
 
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index cd4d131..8222f6f 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -4903,10 +4903,17 @@ static void sort_parity_stripes(struct btrfs_bio *bbio, int num_stripes)
 static struct btrfs_bio *alloc_btrfs_bio(int total_stripes, int real_stripes)
 {
 	struct btrfs_bio *bbio = kzalloc(
+		 /* the size of the btrfs_bio */
 		sizeof(struct btrfs_bio) +
+		/* plus the variable array for the stripes */
 		sizeof(struct btrfs_bio_stripe) * (total_stripes) +
+		/* plus the variable array for the tgt dev */
 		sizeof(int) * (real_stripes) +
-		sizeof(u64) * (real_stripes),
+		/*
+		 * plus the raid_map, which includes both the tgt dev
+		 * and the stripes
+		 */
+		sizeof(u64) * (total_stripes),
 		GFP_NOFS);
 	if (!bbio)
 		return NULL;
diff --git a/fs/btrfs/xattr.c b/fs/btrfs/xattr.c
index 47b1946..883b936 100644
--- a/fs/btrfs/xattr.c
+++ b/fs/btrfs/xattr.c
@@ -111,6 +111,8 @@ static int do_setxattr(struct btrfs_trans_handle *trans,
 					name, name_len, -1);
 		if (!di && (flags & XATTR_REPLACE))
 			ret = -ENODATA;
+		else if (IS_ERR(di))
+			ret = PTR_ERR(di);
 		else if (di)
 			ret = btrfs_delete_one_dir_name(trans, root, path, di);
 		goto out;
@@ -127,10 +129,12 @@ static int do_setxattr(struct btrfs_trans_handle *trans,
 		ASSERT(mutex_is_locked(&inode->i_mutex));
 		di = btrfs_lookup_xattr(NULL, root, path, btrfs_ino(inode),
 					name, name_len, 0);
-		if (!di) {
+		if (!di)
 			ret = -ENODATA;
+		else if (IS_ERR(di))
+			ret = PTR_ERR(di);
+		if (ret)
 			goto out;
-		}
 		btrfs_release_path(path);
 		di = NULL;
 	}
diff --git a/fs/cifs/cifsencrypt.c b/fs/cifs/cifsencrypt.c
index 4ac7445..aa0dc25 100644
--- a/fs/cifs/cifsencrypt.c
+++ b/fs/cifs/cifsencrypt.c
@@ -1,6 +1,9 @@
 /*
  *   fs/cifs/cifsencrypt.c
  *
+ *   Encryption and hashing operations relating to NTLM, NTLMv2.  See MS-NLMP
+ *   for more detailed information
+ *
  *   Copyright (C) International Business Machines  Corp., 2005,2013
  *   Author(s): Steve French (sfrench@us.ibm.com)
  *
@@ -515,7 +518,8 @@ static int calc_ntlmv2_hash(struct cifs_ses *ses, char *ntlmv2_hash,
 				 __func__);
 			return rc;
 		}
-	} else if (ses->serverName) {
+	} else {
+		/* We use ses->serverName if no domain name available */
 		len = strlen(ses->serverName);
 
 		server = kmalloc(2 + (len * 2), GFP_KERNEL);
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index d3aa999..480cf9c 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -1599,6 +1599,8 @@ cifs_parse_mount_options(const char *mountdata, const char *devname,
 				pr_warn("CIFS: username too long\n");
 				goto cifs_parse_mount_err;
 			}
+
+			kfree(vol->username);
 			vol->username = kstrdup(string, GFP_KERNEL);
 			if (!vol->username)
 				goto cifs_parse_mount_err;
@@ -1700,6 +1702,7 @@ cifs_parse_mount_options(const char *mountdata, const char *devname,
 				goto cifs_parse_mount_err;
 			}
 
+			kfree(vol->domainname);
 			vol->domainname = kstrdup(string, GFP_KERNEL);
 			if (!vol->domainname) {
 				pr_warn("CIFS: no memory for domainname\n");
@@ -1731,6 +1734,7 @@ cifs_parse_mount_options(const char *mountdata, const char *devname,
 			}
 
 			 if (strncasecmp(string, "default", 7) != 0) {
+				kfree(vol->iocharset);
 				vol->iocharset = kstrdup(string,
 							 GFP_KERNEL);
 				if (!vol->iocharset) {
@@ -2913,8 +2917,7 @@ ip_rfc1001_connect(struct TCP_Server_Info *server)
 		 * calling name ends in null (byte 16) from old smb
 		 * convention.
 		 */
-		if (server->workstation_RFC1001_name &&
-		    server->workstation_RFC1001_name[0] != 0)
+		if (server->workstation_RFC1001_name[0] != 0)
 			rfc1002mangle(ses_init_buf->trailer.
 				      session_req.calling_name,
 				      server->workstation_RFC1001_name,
@@ -3692,6 +3695,12 @@ CIFSTCon(const unsigned int xid, struct cifs_ses *ses,
 #endif /* CIFS_WEAK_PW_HASH */
 		rc = SMBNTencrypt(tcon->password, ses->server->cryptkey,
 					bcc_ptr, nls_codepage);
+		if (rc) {
+			cifs_dbg(FYI, "%s Can't generate NTLM rsp. Error: %d\n",
+				 __func__, rc);
+			cifs_buf_release(smb_buffer);
+			return rc;
+		}
 
 		bcc_ptr += CIFS_AUTH_RESP_SIZE;
 		if (ses->capabilities & CAP_UNICODE) {
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index a94b3e6..ca30c39 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -1823,6 +1823,7 @@ refind_writable:
 			cifsFileInfo_put(inv_file);
 			spin_lock(&cifs_file_list_lock);
 			++refind;
+			inv_file = NULL;
 			goto refind_writable;
 		}
 	}
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index 2d4f372..3e126d7 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -771,6 +771,8 @@ cifs_get_inode_info(struct inode **inode, const char *full_path,
 				cifs_buf_release(srchinf->ntwrk_buf_start);
 			}
 			kfree(srchinf);
+			if (rc)
+				goto cgii_exit;
 	} else
 		goto cgii_exit;
 
diff --git a/fs/cifs/smb2misc.c b/fs/cifs/smb2misc.c
index 689f035..22dfdf1 100644
--- a/fs/cifs/smb2misc.c
+++ b/fs/cifs/smb2misc.c
@@ -322,7 +322,7 @@ smb2_get_data_area_len(int *off, int *len, struct smb2_hdr *hdr)
 
 	/* return pointer to beginning of data area, ie offset from SMB start */
 	if ((*off != 0) && (*len != 0))
-		return hdr->ProtocolId + *off;
+		return (char *)(&hdr->ProtocolId[0]) + *off;
 	else
 		return NULL;
 }
diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
index 96b5d40..eab05e1 100644
--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -684,7 +684,8 @@ smb2_clone_range(const unsigned int xid,
 
 			/* No need to change MaxChunks since already set to 1 */
 			chunk_sizes_updated = true;
-		}
+		} else
+			goto cchunk_out;
 	}
 
 cchunk_out:
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index 3417340..65cd7a8 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -1218,7 +1218,7 @@ SMB2_ioctl(const unsigned int xid, struct cifs_tcon *tcon, u64 persistent_fid,
 	struct smb2_ioctl_req *req;
 	struct smb2_ioctl_rsp *rsp;
 	struct TCP_Server_Info *server;
-	struct cifs_ses *ses = tcon->ses;
+	struct cifs_ses *ses;
 	struct kvec iov[2];
 	int resp_buftype;
 	int num_iovecs;
@@ -1233,6 +1233,11 @@ SMB2_ioctl(const unsigned int xid, struct cifs_tcon *tcon, u64 persistent_fid,
 	if (plen)
 		*plen = 0;
 
+	if (tcon)
+		ses = tcon->ses;
+	else
+		return -EIO;
+
 	if (ses && (ses->server))
 		server = ses->server;
 	else
@@ -1296,14 +1301,12 @@ SMB2_ioctl(const unsigned int xid, struct cifs_tcon *tcon, u64 persistent_fid,
 	rsp = (struct smb2_ioctl_rsp *)iov[0].iov_base;
 
 	if ((rc != 0) && (rc != -EINVAL)) {
-		if (tcon)
-			cifs_stats_fail_inc(tcon, SMB2_IOCTL_HE);
+		cifs_stats_fail_inc(tcon, SMB2_IOCTL_HE);
 		goto ioctl_exit;
 	} else if (rc == -EINVAL) {
 		if ((opcode != FSCTL_SRV_COPYCHUNK_WRITE) &&
 		    (opcode != FSCTL_SRV_COPYCHUNK)) {
-			if (tcon)
-				cifs_stats_fail_inc(tcon, SMB2_IOCTL_HE);
+			cifs_stats_fail_inc(tcon, SMB2_IOCTL_HE);
 			goto ioctl_exit;
 		}
 	}
@@ -1629,7 +1632,7 @@ SMB2_flush(const unsigned int xid, struct cifs_tcon *tcon, u64 persistent_fid,
 
 	rc = SendReceive2(xid, ses, iov, 1, &resp_buftype, 0);
 
-	if ((rc != 0) && tcon)
+	if (rc != 0)
 		cifs_stats_fail_inc(tcon, SMB2_FLUSH_HE);
 
 	free_rsp_buf(resp_buftype, iov[0].iov_base);
@@ -2114,7 +2117,7 @@ SMB2_query_directory(const unsigned int xid, struct cifs_tcon *tcon,
 	struct kvec iov[2];
 	int rc = 0;
 	int len;
-	int resp_buftype;
+	int resp_buftype = CIFS_NO_BUFFER;
 	unsigned char *bufptr;
 	struct TCP_Server_Info *server;
 	struct cifs_ses *ses = tcon->ses;
diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c
index 96400ab..61e72d4 100644
--- a/fs/debugfs/inode.c
+++ b/fs/debugfs/inode.c
@@ -254,6 +254,9 @@ static struct dentry *start_creating(const char *name, struct dentry *parent)
 
 	pr_debug("debugfs: creating file '%s'\n",name);
 
+	if (IS_ERR(parent))
+		return parent;
+
 	error = simple_pin_fs(&debug_fs_type, &debugfs_mount,
 			      &debugfs_mount_count);
 	if (error)
diff --git a/fs/ecryptfs/ecryptfs_kernel.h b/fs/ecryptfs/ecryptfs_kernel.h
index 90d1882..5ba029e 100644
--- a/fs/ecryptfs/ecryptfs_kernel.h
+++ b/fs/ecryptfs/ecryptfs_kernel.h
@@ -124,7 +124,7 @@ ecryptfs_get_key_payload_data(struct key *key)
 }
 
 #define ECRYPTFS_MAX_KEYSET_SIZE 1024
-#define ECRYPTFS_MAX_CIPHER_NAME_SIZE 32
+#define ECRYPTFS_MAX_CIPHER_NAME_SIZE 31
 #define ECRYPTFS_MAX_NUM_ENC_KEYS 64
 #define ECRYPTFS_MAX_IV_BYTES 16	/* 128 bits */
 #define ECRYPTFS_SALT_BYTES 2
@@ -237,7 +237,7 @@ struct ecryptfs_crypt_stat {
 	struct crypto_ablkcipher *tfm;
 	struct crypto_hash *hash_tfm; /* Crypto context for generating
 				       * the initialization vectors */
-	unsigned char cipher[ECRYPTFS_MAX_CIPHER_NAME_SIZE];
+	unsigned char cipher[ECRYPTFS_MAX_CIPHER_NAME_SIZE + 1];
 	unsigned char key[ECRYPTFS_MAX_KEY_BYTES];
 	unsigned char root_iv[ECRYPTFS_MAX_IV_BYTES];
 	struct list_head keysig_list;
diff --git a/fs/ecryptfs/file.c b/fs/ecryptfs/file.c
index b07731e..fd39bad 100644
--- a/fs/ecryptfs/file.c
+++ b/fs/ecryptfs/file.c
@@ -303,9 +303,22 @@ ecryptfs_unlocked_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 	struct file *lower_file = ecryptfs_file_to_lower(file);
 	long rc = -ENOTTY;
 
-	if (lower_file->f_op->unlocked_ioctl)
+	if (!lower_file->f_op->unlocked_ioctl)
+		return rc;
+
+	switch (cmd) {
+	case FITRIM:
+	case FS_IOC_GETFLAGS:
+	case FS_IOC_SETFLAGS:
+	case FS_IOC_GETVERSION:
+	case FS_IOC_SETVERSION:
 		rc = lower_file->f_op->unlocked_ioctl(lower_file, cmd, arg);
-	return rc;
+		fsstack_copy_attr_all(file_inode(file), file_inode(lower_file));
+
+		return rc;
+	default:
+		return rc;
+	}
 }
 
 #ifdef CONFIG_COMPAT
@@ -315,9 +328,22 @@ ecryptfs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 	struct file *lower_file = ecryptfs_file_to_lower(file);
 	long rc = -ENOIOCTLCMD;
 
-	if (lower_file->f_op->compat_ioctl)
+	if (!lower_file->f_op->compat_ioctl)
+		return rc;
+
+	switch (cmd) {
+	case FITRIM:
+	case FS_IOC32_GETFLAGS:
+	case FS_IOC32_SETFLAGS:
+	case FS_IOC32_GETVERSION:
+	case FS_IOC32_SETVERSION:
 		rc = lower_file->f_op->compat_ioctl(lower_file, cmd, arg);
-	return rc;
+		fsstack_copy_attr_all(file_inode(file), file_inode(lower_file));
+
+		return rc;
+	default:
+		return rc;
+	}
 }
 #endif
 
diff --git a/fs/ecryptfs/keystore.c b/fs/ecryptfs/keystore.c
index 917bd5c..6bd67e2 100644
--- a/fs/ecryptfs/keystore.c
+++ b/fs/ecryptfs/keystore.c
@@ -891,7 +891,7 @@ struct ecryptfs_parse_tag_70_packet_silly_stack {
 	struct blkcipher_desc desc;
 	char fnek_sig_hex[ECRYPTFS_SIG_SIZE_HEX + 1];
 	char iv[ECRYPTFS_MAX_IV_BYTES];
-	char cipher_string[ECRYPTFS_MAX_CIPHER_NAME_SIZE];
+	char cipher_string[ECRYPTFS_MAX_CIPHER_NAME_SIZE + 1];
 };
 
 /**
diff --git a/fs/ecryptfs/main.c b/fs/ecryptfs/main.c
index 1895d60..c095d32 100644
--- a/fs/ecryptfs/main.c
+++ b/fs/ecryptfs/main.c
@@ -407,7 +407,7 @@ static int ecryptfs_parse_options(struct ecryptfs_sb_info *sbi, char *options,
 	if (!cipher_name_set) {
 		int cipher_name_len = strlen(ECRYPTFS_DEFAULT_CIPHER);
 
-		BUG_ON(cipher_name_len >= ECRYPTFS_MAX_CIPHER_NAME_SIZE);
+		BUG_ON(cipher_name_len > ECRYPTFS_MAX_CIPHER_NAME_SIZE);
 		strcpy(mount_crypt_stat->global_default_cipher_name,
 		       ECRYPTFS_DEFAULT_CIPHER);
 	}
diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index e907052..32a8bbd 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -53,6 +53,18 @@ struct wb_writeback_work {
 	struct completion *done;	/* set if the caller waits */
 };
 
+/*
+ * If an inode is constantly having its pages dirtied, but then the
+ * updates stop dirtytime_expire_interval seconds in the past, it's
+ * possible for the worst case time between when an inode has its
+ * timestamps updated and when they finally get written out to be two
+ * dirtytime_expire_intervals.  We set the default to 12 hours (in
+ * seconds), which means most of the time inodes will have their
+ * timestamps written to disk after 12 hours, but in the worst case a
+ * few inodes might not their timestamps updated for 24 hours.
+ */
+unsigned int dirtytime_expire_interval = 12 * 60 * 60;
+
 /**
  * writeback_in_progress - determine whether there is writeback in progress
  * @bdi: the device's backing_dev_info structure.
@@ -275,8 +287,8 @@ static int move_expired_inodes(struct list_head *delaying_queue,
 
 	if ((flags & EXPIRE_DIRTY_ATIME) == 0)
 		older_than_this = work->older_than_this;
-	else if ((work->reason == WB_REASON_SYNC) == 0) {
-		expire_time = jiffies - (HZ * 86400);
+	else if (!work->for_sync) {
+		expire_time = jiffies - (dirtytime_expire_interval * HZ);
 		older_than_this = &expire_time;
 	}
 	while (!list_empty(delaying_queue)) {
@@ -458,6 +470,7 @@ static void requeue_inode(struct inode *inode, struct bdi_writeback *wb,
 		 */
 		redirty_tail(inode, wb);
 	} else if (inode->i_state & I_DIRTY_TIME) {
+		inode->dirtied_when = jiffies;
 		list_move(&inode->i_wb_list, &wb->b_dirty_time);
 	} else {
 		/* The inode is clean. Remove from writeback lists. */
@@ -505,12 +518,17 @@ __writeback_single_inode(struct inode *inode, struct writeback_control *wbc)
 	spin_lock(&inode->i_lock);
 
 	dirty = inode->i_state & I_DIRTY;
-	if (((dirty & (I_DIRTY_SYNC | I_DIRTY_DATASYNC)) &&
-	     (inode->i_state & I_DIRTY_TIME)) ||
-	    (inode->i_state & I_DIRTY_TIME_EXPIRED)) {
-		dirty |= I_DIRTY_TIME | I_DIRTY_TIME_EXPIRED;
-		trace_writeback_lazytime(inode);
-	}
+	if (inode->i_state & I_DIRTY_TIME) {
+		if ((dirty & (I_DIRTY_SYNC | I_DIRTY_DATASYNC)) ||
+		    unlikely(inode->i_state & I_DIRTY_TIME_EXPIRED) ||
+		    unlikely(time_after(jiffies,
+					(inode->dirtied_time_when +
+					 dirtytime_expire_interval * HZ)))) {
+			dirty |= I_DIRTY_TIME | I_DIRTY_TIME_EXPIRED;
+			trace_writeback_lazytime(inode);
+		}
+	} else
+		inode->i_state &= ~I_DIRTY_TIME_EXPIRED;
 	inode->i_state &= ~dirty;
 
 	/*
@@ -1131,6 +1149,56 @@ void wakeup_flusher_threads(long nr_pages, enum wb_reason reason)
 	rcu_read_unlock();
 }
 
+/*
+ * Wake up bdi's periodically to make sure dirtytime inodes gets
+ * written back periodically.  We deliberately do *not* check the
+ * b_dirtytime list in wb_has_dirty_io(), since this would cause the
+ * kernel to be constantly waking up once there are any dirtytime
+ * inodes on the system.  So instead we define a separate delayed work
+ * function which gets called much more rarely.  (By default, only
+ * once every 12 hours.)
+ *
+ * If there is any other write activity going on in the file system,
+ * this function won't be necessary.  But if the only thing that has
+ * happened on the file system is a dirtytime inode caused by an atime
+ * update, we need this infrastructure below to make sure that inode
+ * eventually gets pushed out to disk.
+ */
+static void wakeup_dirtytime_writeback(struct work_struct *w);
+static DECLARE_DELAYED_WORK(dirtytime_work, wakeup_dirtytime_writeback);
+
+static void wakeup_dirtytime_writeback(struct work_struct *w)
+{
+	struct backing_dev_info *bdi;
+
+	rcu_read_lock();
+	list_for_each_entry_rcu(bdi, &bdi_list, bdi_list) {
+		if (list_empty(&bdi->wb.b_dirty_time))
+			continue;
+		bdi_wakeup_thread(bdi);
+	}
+	rcu_read_unlock();
+	schedule_delayed_work(&dirtytime_work, dirtytime_expire_interval * HZ);
+}
+
+static int __init start_dirtytime_writeback(void)
+{
+	schedule_delayed_work(&dirtytime_work, dirtytime_expire_interval * HZ);
+	return 0;
+}
+__initcall(start_dirtytime_writeback);
+
+int dirtytime_interval_handler(struct ctl_table *table, int write,
+			       void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+	int ret;
+
+	ret = proc_dointvec_minmax(table, write, buffer, lenp, ppos);
+	if (ret == 0 && write)
+		mod_delayed_work(system_wq, &dirtytime_work, 0);
+	return ret;
+}
+
 static noinline void block_dump___mark_inode_dirty(struct inode *inode)
 {
 	if (inode->i_ino || strcmp(inode->i_sb->s_id, "bdev")) {
@@ -1269,8 +1337,13 @@ void __mark_inode_dirty(struct inode *inode, int flags)
 			}
 
 			inode->dirtied_when = jiffies;
-			list_move(&inode->i_wb_list, dirtytime ?
-				  &bdi->wb.b_dirty_time : &bdi->wb.b_dirty);
+			if (dirtytime)
+				inode->dirtied_time_when = jiffies;
+			if (inode->i_state & (I_DIRTY_INODE | I_DIRTY_PAGES))
+				list_move(&inode->i_wb_list, &bdi->wb.b_dirty);
+			else
+				list_move(&inode->i_wb_list,
+					  &bdi->wb.b_dirty_time);
 			spin_unlock(&bdi->wb.list_lock);
 			trace_writeback_dirty_inode_enqueue(inode);
 
diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index ed19a7d..39706c5 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -890,8 +890,8 @@ static int fuse_try_move_page(struct fuse_copy_state *cs, struct page **pagep)
 
 	newpage = buf->page;
 
-	if (WARN_ON(!PageUptodate(newpage)))
-		return -EIO;
+	if (!PageUptodate(newpage))
+		SetPageUptodate(newpage);
 
 	ClearPageMappedToDisk(newpage);
 
@@ -1353,6 +1353,17 @@ static ssize_t fuse_dev_do_read(struct fuse_conn *fc, struct file *file,
 	return err;
 }
 
+static int fuse_dev_open(struct inode *inode, struct file *file)
+{
+	/*
+	 * The fuse device's file's private_data is used to hold
+	 * the fuse_conn(ection) when it is mounted, and is used to
+	 * keep track of whether the file has been mounted already.
+	 */
+	file->private_data = NULL;
+	return 0;
+}
+
 static ssize_t fuse_dev_read(struct kiocb *iocb, const struct iovec *iov,
 			      unsigned long nr_segs, loff_t pos)
 {
@@ -1797,6 +1808,9 @@ copy_finish:
 static int fuse_notify(struct fuse_conn *fc, enum fuse_notify_code code,
 		       unsigned int size, struct fuse_copy_state *cs)
 {
+	/* Don't try to move pages (yet) */
+	cs->move_pages = 0;
+
 	switch (code) {
 	case FUSE_NOTIFY_POLL:
 		return fuse_notify_poll(fc, size, cs);
@@ -2217,6 +2231,7 @@ static int fuse_dev_fasync(int fd, struct file *file, int on)
 
 const struct file_operations fuse_dev_operations = {
 	.owner		= THIS_MODULE,
+	.open		= fuse_dev_open,
 	.llseek		= no_llseek,
 	.read		= do_sync_read,
 	.aio_read	= fuse_dev_read,
diff --git a/fs/hfsplus/brec.c b/fs/hfsplus/brec.c
index 6e560d5..754fdf8 100644
--- a/fs/hfsplus/brec.c
+++ b/fs/hfsplus/brec.c
@@ -131,13 +131,16 @@ skip:
 	hfs_bnode_write(node, entry, data_off + key_len, entry_len);
 	hfs_bnode_dump(node);
 
-	if (new_node) {
-		/* update parent key if we inserted a key
-		 * at the start of the first node
-		 */
-		if (!rec && new_node != node)
-			hfs_brec_update_parent(fd);
+	/*
+	 * update parent key if we inserted a key
+	 * at the start of the node and it is not the new node
+	 */
+	if (!rec && new_node != node) {
+		hfs_bnode_read_key(node, fd->search_key, data_off + size);
+		hfs_brec_update_parent(fd);
+	}
 
+	if (new_node) {
 		hfs_bnode_put(fd->bnode);
 		if (!new_node->parent) {
 			hfs_btree_inc_height(tree);
@@ -168,9 +171,6 @@ skip:
 		goto again;
 	}
 
-	if (!rec)
-		hfs_brec_update_parent(fd);
-
 	return 0;
 }
 
@@ -370,6 +370,8 @@ again:
 	if (IS_ERR(parent))
 		return PTR_ERR(parent);
 	__hfs_brec_find(parent, fd, hfs_find_rec_by_key);
+	if (fd->record < 0)
+		return -ENOENT;
 	hfs_bnode_dump(parent);
 	rec = fd->record;
 
diff --git a/fs/kernfs/file.c b/fs/kernfs/file.c
index b684e8a..2bacb99 100644
--- a/fs/kernfs/file.c
+++ b/fs/kernfs/file.c
@@ -207,6 +207,7 @@ static ssize_t kernfs_file_direct_read(struct kernfs_open_file *of,
 		goto out_free;
 	}
 
+	of->event = atomic_read(&of->kn->attr.open->event);
 	ops = kernfs_ops(of->kn);
 	if (ops->read)
 		len = ops->read(of, buf, len, *ppos);
diff --git a/fs/locks.c b/fs/locks.c
index 365c82e..40bc384 100644
--- a/fs/locks.c
+++ b/fs/locks.c
@@ -1388,9 +1388,8 @@ any_leases_conflict(struct inode *inode, struct file_lock *breaker)
 int __break_lease(struct inode *inode, unsigned int mode, unsigned int type)
 {
 	int error = 0;
-	struct file_lock *new_fl;
 	struct file_lock_context *ctx = inode->i_flctx;
-	struct file_lock *fl;
+	struct file_lock *new_fl, *fl, *tmp;
 	unsigned long break_time;
 	int want_write = (mode & O_ACCMODE) != O_RDONLY;
 	LIST_HEAD(dispose);
@@ -1420,7 +1419,7 @@ int __break_lease(struct inode *inode, unsigned int mode, unsigned int type)
 			break_time++;	/* so that 0 means no break time */
 	}
 
-	list_for_each_entry(fl, &ctx->flc_lease, fl_list) {
+	list_for_each_entry_safe(fl, tmp, &ctx->flc_lease, fl_list) {
 		if (!leases_conflict(fl, new_fl))
 			continue;
 		if (want_write) {
@@ -1665,7 +1664,8 @@ generic_add_lease(struct file *filp, long arg, struct file_lock **flp, void **pr
 	}
 
 	if (my_fl != NULL) {
-		error = lease->fl_lmops->lm_change(my_fl, arg, &dispose);
+		lease = my_fl;
+		error = lease->fl_lmops->lm_change(lease, arg, &dispose);
 		if (error)
 			goto out;
 		goto out_setup;
@@ -1727,7 +1727,7 @@ static int generic_delete_lease(struct file *filp, void *owner)
 			break;
 		}
 	}
-	trace_generic_delete_lease(inode, fl);
+	trace_generic_delete_lease(inode, victim);
 	if (victim)
 		error = fl->fl_lmops->lm_change(victim, F_UNLCK, &dispose);
 	spin_unlock(&ctx->flc_lock);
diff --git a/fs/nfs/client.c b/fs/nfs/client.c
index f9f4845..1987415 100644
--- a/fs/nfs/client.c
+++ b/fs/nfs/client.c
@@ -433,7 +433,7 @@ static struct nfs_client *nfs_match_client(const struct nfs_client_initdata *dat
 
 static bool nfs_client_init_is_complete(const struct nfs_client *clp)
 {
-	return clp->cl_cons_state != NFS_CS_INITING;
+	return clp->cl_cons_state <= NFS_CS_READY;
 }
 
 int nfs_wait_client_init_complete(const struct nfs_client *clp)
diff --git a/fs/nfs/delegation.c b/fs/nfs/delegation.c
index a1f0685..a6ad688 100644
--- a/fs/nfs/delegation.c
+++ b/fs/nfs/delegation.c
@@ -181,8 +181,8 @@ void nfs_inode_reclaim_delegation(struct inode *inode, struct rpc_cred *cred,
 			clear_bit(NFS_DELEGATION_NEED_RECLAIM,
 				  &delegation->flags);
 			spin_unlock(&delegation->lock);
-			put_rpccred(oldcred);
 			rcu_read_unlock();
+			put_rpccred(oldcred);
 			trace_nfs4_reclaim_delegation(inode, res->delegation_type);
 		} else {
 			/* We appear to have raced with a delegation return. */
@@ -370,7 +370,10 @@ int nfs_inode_set_delegation(struct inode *inode, struct rpc_cred *cred, struct
 			delegation = NULL;
 			goto out;
 		}
-		freeme = nfs_detach_delegation_locked(nfsi, 
+		if (test_and_set_bit(NFS_DELEGATION_RETURNING,
+					&old_delegation->flags))
+			goto out;
+		freeme = nfs_detach_delegation_locked(nfsi,
 				old_delegation, clp);
 		if (freeme == NULL)
 			goto out;
@@ -433,6 +436,8 @@ static bool nfs_delegation_need_return(struct nfs_delegation *delegation)
 {
 	bool ret = false;
 
+	if (test_bit(NFS_DELEGATION_RETURNING, &delegation->flags))
+		goto out;
 	if (test_and_clear_bit(NFS_DELEGATION_RETURN, &delegation->flags))
 		ret = true;
 	if (test_and_clear_bit(NFS_DELEGATION_RETURN_IF_CLOSED, &delegation->flags) && !ret) {
@@ -444,6 +449,7 @@ static bool nfs_delegation_need_return(struct nfs_delegation *delegation)
 			ret = true;
 		spin_unlock(&delegation->lock);
 	}
+out:
 	return ret;
 }
 
@@ -471,14 +477,20 @@ restart:
 								super_list) {
 			if (!nfs_delegation_need_return(delegation))
 				continue;
-			inode = nfs_delegation_grab_inode(delegation);
-			if (inode == NULL)
+			if (!nfs_sb_active(server->super))
 				continue;
+			inode = nfs_delegation_grab_inode(delegation);
+			if (inode == NULL) {
+				rcu_read_unlock();
+				nfs_sb_deactive(server->super);
+				goto restart;
+			}
 			delegation = nfs_start_delegation_return_locked(NFS_I(inode));
 			rcu_read_unlock();
 
 			err = nfs_end_delegation_return(inode, delegation, 0);
 			iput(inode);
+			nfs_sb_deactive(server->super);
 			if (!err)
 				goto restart;
 			set_bit(NFS4CLNT_DELEGRETURN, &clp->cl_state);
@@ -809,19 +821,30 @@ restart:
 	list_for_each_entry_rcu(server, &clp->cl_superblocks, client_link) {
 		list_for_each_entry_rcu(delegation, &server->delegations,
 								super_list) {
+			if (test_bit(NFS_DELEGATION_RETURNING,
+						&delegation->flags))
+				continue;
 			if (test_bit(NFS_DELEGATION_NEED_RECLAIM,
 						&delegation->flags) == 0)
 				continue;
-			inode = nfs_delegation_grab_inode(delegation);
-			if (inode == NULL)
+			if (!nfs_sb_active(server->super))
 				continue;
-			delegation = nfs_detach_delegation(NFS_I(inode),
-					delegation, server);
+			inode = nfs_delegation_grab_inode(delegation);
+			if (inode == NULL) {
+				rcu_read_unlock();
+				nfs_sb_deactive(server->super);
+				goto restart;
+			}
+			delegation = nfs_start_delegation_return_locked(NFS_I(inode));
 			rcu_read_unlock();
-
-			if (delegation != NULL)
-				nfs_free_delegation(delegation);
+			if (delegation != NULL) {
+				delegation = nfs_detach_delegation(NFS_I(inode),
+					delegation, server);
+				if (delegation != NULL)
+					nfs_free_delegation(delegation);
+			}
 			iput(inode);
+			nfs_sb_deactive(server->super);
 			goto restart;
 		}
 	}
diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index 9b0c55c..c19e16f 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -408,14 +408,22 @@ static int xdr_decode(nfs_readdir_descriptor_t *desc,
 	return 0;
 }
 
+/* Match file and dirent using either filehandle or fileid
+ * Note: caller is responsible for checking the fsid
+ */
 static
 int nfs_same_file(struct dentry *dentry, struct nfs_entry *entry)
 {
+	struct nfs_inode *nfsi;
+
 	if (dentry->d_inode == NULL)
 		goto different;
-	if (nfs_compare_fh(entry->fh, NFS_FH(dentry->d_inode)) != 0)
-		goto different;
-	return 1;
+
+	nfsi = NFS_I(dentry->d_inode);
+	if (entry->fattr->fileid == nfsi->fileid)
+		return 1;
+	if (nfs_compare_fh(entry->fh, &nfsi->fh) == 0)
+		return 1;
 different:
 	return 0;
 }
@@ -469,6 +477,10 @@ void nfs_prime_dcache(struct dentry *parent, struct nfs_entry *entry)
 	struct inode *inode;
 	int status;
 
+	if (!(entry->fattr->valid & NFS_ATTR_FATTR_FILEID))
+		return;
+	if (!(entry->fattr->valid & NFS_ATTR_FATTR_FSID))
+		return;
 	if (filename.name[0] == '.') {
 		if (filename.len == 1)
 			return;
@@ -479,6 +491,10 @@ void nfs_prime_dcache(struct dentry *parent, struct nfs_entry *entry)
 
 	dentry = d_lookup(parent, &filename);
 	if (dentry != NULL) {
+		/* Is there a mountpoint here? If so, just exit */
+		if (!nfs_fsid_equal(&NFS_SB(dentry->d_sb)->fsid,
+					&entry->fattr->fsid))
+			goto out;
 		if (nfs_same_file(dentry, entry)) {
 			nfs_set_verifier(dentry, nfs_save_change_attribute(dir));
 			status = nfs_refresh_inode(dentry->d_inode, entry->fattr);
diff --git a/fs/nfs/file.c b/fs/nfs/file.c
index 94712fc..e679d24 100644
--- a/fs/nfs/file.c
+++ b/fs/nfs/file.c
@@ -178,7 +178,7 @@ nfs_file_read(struct kiocb *iocb, struct iov_iter *to)
 		iocb->ki_filp,
 		iov_iter_count(to), (unsigned long) iocb->ki_pos);
 
-	result = nfs_revalidate_mapping(inode, iocb->ki_filp->f_mapping);
+	result = nfs_revalidate_mapping_protected(inode, iocb->ki_filp->f_mapping);
 	if (!result) {
 		result = generic_file_read_iter(iocb, to);
 		if (result > 0)
@@ -199,7 +199,7 @@ nfs_file_splice_read(struct file *filp, loff_t *ppos,
 	dprintk("NFS: splice_read(%pD2, %lu@%Lu)\n",
 		filp, (unsigned long) count, (unsigned long long) *ppos);
 
-	res = nfs_revalidate_mapping(inode, filp->f_mapping);
+	res = nfs_revalidate_mapping_protected(inode, filp->f_mapping);
 	if (!res) {
 		res = generic_file_splice_read(filp, ppos, pipe, count, flags);
 		if (res > 0)
@@ -372,6 +372,10 @@ start:
 				 nfs_wait_bit_killable, TASK_KILLABLE);
 	if (ret)
 		return ret;
+	/*
+	 * Wait for O_DIRECT to complete
+	 */
+	nfs_inode_dio_wait(mapping->host);
 
 	page = grab_cache_page_write_begin(mapping, index, flags);
 	if (!page)
@@ -619,6 +623,9 @@ static int nfs_vm_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf)
 	/* make sure the cache has finished storing the page */
 	nfs_fscache_wait_on_page_write(NFS_I(inode), page);
 
+	wait_on_bit_action(&NFS_I(inode)->flags, NFS_INO_INVALIDATING,
+			nfs_wait_bit_killable, TASK_KILLABLE);
+
 	lock_page(page);
 	mapping = page_file_mapping(page);
 	if (mapping != inode->i_mapping)
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index 83107be..d42dff6 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -556,6 +556,7 @@ EXPORT_SYMBOL_GPL(nfs_setattr);
  * This is a copy of the common vmtruncate, but with the locking
  * corrected to take into account the fact that NFS requires
  * inode->i_size to be updated under the inode->i_lock.
+ * Note: must be called with inode->i_lock held!
  */
 static int nfs_vmtruncate(struct inode * inode, loff_t offset)
 {
@@ -565,14 +566,14 @@ static int nfs_vmtruncate(struct inode * inode, loff_t offset)
 	if (err)
 		goto out;
 
-	spin_lock(&inode->i_lock);
 	i_size_write(inode, offset);
 	/* Optimisation */
 	if (offset == 0)
 		NFS_I(inode)->cache_validity &= ~NFS_INO_INVALID_DATA;
-	spin_unlock(&inode->i_lock);
 
+	spin_unlock(&inode->i_lock);
 	truncate_pagecache(inode, offset);
+	spin_lock(&inode->i_lock);
 out:
 	return err;
 }
@@ -585,10 +586,15 @@ out:
  * Note: we do this in the *proc.c in order to ensure that
  *       it works for things like exclusive creates too.
  */
-void nfs_setattr_update_inode(struct inode *inode, struct iattr *attr)
+void nfs_setattr_update_inode(struct inode *inode, struct iattr *attr,
+		struct nfs_fattr *fattr)
 {
+	/* Barrier: bump the attribute generation count. */
+	nfs_fattr_set_barrier(fattr);
+
+	spin_lock(&inode->i_lock);
+	NFS_I(inode)->attr_gencount = fattr->gencount;
 	if ((attr->ia_valid & (ATTR_MODE|ATTR_UID|ATTR_GID)) != 0) {
-		spin_lock(&inode->i_lock);
 		if ((attr->ia_valid & ATTR_MODE) != 0) {
 			int mode = attr->ia_mode & S_IALLUGO;
 			mode |= inode->i_mode & ~S_IALLUGO;
@@ -600,12 +606,13 @@ void nfs_setattr_update_inode(struct inode *inode, struct iattr *attr)
 			inode->i_gid = attr->ia_gid;
 		nfs_set_cache_invalid(inode, NFS_INO_INVALID_ACCESS
 				| NFS_INO_INVALID_ACL);
-		spin_unlock(&inode->i_lock);
 	}
 	if ((attr->ia_valid & ATTR_SIZE) != 0) {
 		nfs_inc_stats(inode, NFSIOS_SETATTRTRUNC);
 		nfs_vmtruncate(inode, attr->ia_size);
 	}
+	nfs_update_inode(inode, fattr);
+	spin_unlock(&inode->i_lock);
 }
 EXPORT_SYMBOL_GPL(nfs_setattr_update_inode);
 
@@ -1028,6 +1035,7 @@ static int nfs_invalidate_mapping(struct inode *inode, struct address_space *map
 
 	if (mapping->nrpages != 0) {
 		if (S_ISREG(inode->i_mode)) {
+			unmap_mapping_range(mapping, 0, 0, 0);
 			ret = nfs_sync_mapping(mapping);
 			if (ret < 0)
 				return ret;
@@ -1060,11 +1068,14 @@ static bool nfs_mapping_need_revalidate_inode(struct inode *inode)
 }
 
 /**
- * nfs_revalidate_mapping - Revalidate the pagecache
+ * __nfs_revalidate_mapping - Revalidate the pagecache
  * @inode - pointer to host inode
  * @mapping - pointer to mapping
+ * @may_lock - take inode->i_mutex?
  */
-int nfs_revalidate_mapping(struct inode *inode, struct address_space *mapping)
+static int __nfs_revalidate_mapping(struct inode *inode,
+		struct address_space *mapping,
+		bool may_lock)
 {
 	struct nfs_inode *nfsi = NFS_I(inode);
 	unsigned long *bitlock = &nfsi->flags;
@@ -1113,7 +1124,12 @@ int nfs_revalidate_mapping(struct inode *inode, struct address_space *mapping)
 	nfsi->cache_validity &= ~NFS_INO_INVALID_DATA;
 	spin_unlock(&inode->i_lock);
 	trace_nfs_invalidate_mapping_enter(inode);
-	ret = nfs_invalidate_mapping(inode, mapping);
+	if (may_lock) {
+		mutex_lock(&inode->i_mutex);
+		ret = nfs_invalidate_mapping(inode, mapping);
+		mutex_unlock(&inode->i_mutex);
+	} else
+		ret = nfs_invalidate_mapping(inode, mapping);
 	trace_nfs_invalidate_mapping_exit(inode, ret);
 
 	clear_bit_unlock(NFS_INO_INVALIDATING, bitlock);
@@ -1123,6 +1139,29 @@ out:
 	return ret;
 }
 
+/**
+ * nfs_revalidate_mapping - Revalidate the pagecache
+ * @inode - pointer to host inode
+ * @mapping - pointer to mapping
+ */
+int nfs_revalidate_mapping(struct inode *inode, struct address_space *mapping)
+{
+	return __nfs_revalidate_mapping(inode, mapping, false);
+}
+
+/**
+ * nfs_revalidate_mapping_protected - Revalidate the pagecache
+ * @inode - pointer to host inode
+ * @mapping - pointer to mapping
+ *
+ * Differs from nfs_revalidate_mapping() in that it grabs the inode->i_mutex
+ * while invalidating the mapping.
+ */
+int nfs_revalidate_mapping_protected(struct inode *inode, struct address_space *mapping)
+{
+	return __nfs_revalidate_mapping(inode, mapping, true);
+}
+
 static unsigned long nfs_wcc_update_inode(struct inode *inode, struct nfs_fattr *fattr)
 {
 	struct nfs_inode *nfsi = NFS_I(inode);
@@ -1231,13 +1270,6 @@ static int nfs_ctime_need_update(const struct inode *inode, const struct nfs_fat
 	return timespec_compare(&fattr->ctime, &inode->i_ctime) > 0;
 }
 
-static int nfs_size_need_update(const struct inode *inode, const struct nfs_fattr *fattr)
-{
-	if (!(fattr->valid & NFS_ATTR_FATTR_SIZE))
-		return 0;
-	return nfs_size_to_loff_t(fattr->size) > i_size_read(inode);
-}
-
 static atomic_long_t nfs_attr_generation_counter;
 
 static unsigned long nfs_read_attr_generation_counter(void)
@@ -1249,6 +1281,7 @@ unsigned long nfs_inc_attr_generation_counter(void)
 {
 	return atomic_long_inc_return(&nfs_attr_generation_counter);
 }
+EXPORT_SYMBOL_GPL(nfs_inc_attr_generation_counter);
 
 void nfs_fattr_init(struct nfs_fattr *fattr)
 {
@@ -1260,6 +1293,22 @@ void nfs_fattr_init(struct nfs_fattr *fattr)
 }
 EXPORT_SYMBOL_GPL(nfs_fattr_init);
 
+/**
+ * nfs_fattr_set_barrier
+ * @fattr: attributes
+ *
+ * Used to set a barrier after an attribute was updated. This
+ * barrier ensures that older attributes from RPC calls that may
+ * have raced with our update cannot clobber these new values.
+ * Note that you are still responsible for ensuring that other
+ * operations which change the attribute on the server do not
+ * collide.
+ */
+void nfs_fattr_set_barrier(struct nfs_fattr *fattr)
+{
+	fattr->gencount = nfs_inc_attr_generation_counter();
+}
+
 struct nfs_fattr *nfs_alloc_fattr(void)
 {
 	struct nfs_fattr *fattr;
@@ -1370,7 +1419,6 @@ static int nfs_inode_attrs_need_update(const struct inode *inode, const struct n
 
 	return ((long)fattr->gencount - (long)nfsi->attr_gencount) > 0 ||
 		nfs_ctime_need_update(inode, fattr) ||
-		nfs_size_need_update(inode, fattr) ||
 		((long)nfsi->attr_gencount - (long)nfs_read_attr_generation_counter() > 0);
 }
 
@@ -1460,6 +1508,7 @@ int nfs_post_op_update_inode(struct inode *inode, struct nfs_fattr *fattr)
 	int status;
 
 	spin_lock(&inode->i_lock);
+	nfs_fattr_set_barrier(fattr);
 	status = nfs_post_op_update_inode_locked(inode, fattr);
 	spin_unlock(&inode->i_lock);
 
@@ -1468,7 +1517,7 @@ int nfs_post_op_update_inode(struct inode *inode, struct nfs_fattr *fattr)
 EXPORT_SYMBOL_GPL(nfs_post_op_update_inode);
 
 /**
- * nfs_post_op_update_inode_force_wcc - try to update the inode attribute cache
+ * nfs_post_op_update_inode_force_wcc_locked - update the inode attribute cache
  * @inode - pointer to inode
  * @fattr - updated attributes
  *
@@ -1478,11 +1527,10 @@ EXPORT_SYMBOL_GPL(nfs_post_op_update_inode);
  *
  * This function is mainly designed to be used by the ->write_done() functions.
  */
-int nfs_post_op_update_inode_force_wcc(struct inode *inode, struct nfs_fattr *fattr)
+int nfs_post_op_update_inode_force_wcc_locked(struct inode *inode, struct nfs_fattr *fattr)
 {
 	int status;
 
-	spin_lock(&inode->i_lock);
 	/* Don't do a WCC update if these attributes are already stale */
 	if ((fattr->valid & NFS_ATTR_FATTR) == 0 ||
 			!nfs_inode_attrs_need_update(inode, fattr)) {
@@ -1514,6 +1562,27 @@ int nfs_post_op_update_inode_force_wcc(struct inode *inode, struct nfs_fattr *fa
 	}
 out_noforce:
 	status = nfs_post_op_update_inode_locked(inode, fattr);
+	return status;
+}
+
+/**
+ * nfs_post_op_update_inode_force_wcc - try to update the inode attribute cache
+ * @inode - pointer to inode
+ * @fattr - updated attributes
+ *
+ * After an operation that has changed the inode metadata, mark the
+ * attribute cache as being invalid, then try to update it. Fake up
+ * weak cache consistency data, if none exist.
+ *
+ * This function is mainly designed to be used by the ->write_done() functions.
+ */
+int nfs_post_op_update_inode_force_wcc(struct inode *inode, struct nfs_fattr *fattr)
+{
+	int status;
+
+	spin_lock(&inode->i_lock);
+	nfs_fattr_set_barrier(fattr);
+	status = nfs_post_op_update_inode_force_wcc_locked(inode, fattr);
 	spin_unlock(&inode->i_lock);
 	return status;
 }
@@ -1715,6 +1784,7 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr)
 		nfs_inc_stats(inode, NFSIOS_ATTRINVALIDATE);
 		nfsi->attrtimeo = NFS_MINATTRTIMEO(inode);
 		nfsi->attrtimeo_timestamp = now;
+		/* Set barrier to be more recent than all outstanding updates */
 		nfsi->attr_gencount = nfs_inc_attr_generation_counter();
 	} else {
 		if (!time_in_range_open(now, nfsi->attrtimeo_timestamp, nfsi->attrtimeo_timestamp + nfsi->attrtimeo)) {
@@ -1722,6 +1792,9 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr)
 				nfsi->attrtimeo = NFS_MAXATTRTIMEO(inode);
 			nfsi->attrtimeo_timestamp = now;
 		}
+		/* Set the barrier to be more recent than this fattr */
+		if ((long)fattr->gencount - (long)nfsi->attr_gencount > 0)
+			nfsi->attr_gencount = fattr->gencount;
 	}
 	invalid &= ~NFS_INO_INVALID_ATTR;
 	/* Don't invalidate the data if we were to blame */
diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h
index b802fb3..9e6475b 100644
--- a/fs/nfs/internal.h
+++ b/fs/nfs/internal.h
@@ -459,6 +459,7 @@ void nfs_mark_request_commit(struct nfs_page *req,
 			     struct nfs_commit_info *cinfo,
 			     u32 ds_commit_idx);
 int nfs_write_need_commit(struct nfs_pgio_header *);
+void nfs_writeback_update_inode(struct nfs_pgio_header *hdr);
 int nfs_generic_commit_list(struct inode *inode, struct list_head *head,
 			    int how, struct nfs_commit_info *cinfo);
 void nfs_retry_commit(struct list_head *page_list,
diff --git a/fs/nfs/nfs3proc.c b/fs/nfs/nfs3proc.c
index 78e557c..1f11d25 100644
--- a/fs/nfs/nfs3proc.c
+++ b/fs/nfs/nfs3proc.c
@@ -138,7 +138,7 @@ nfs3_proc_setattr(struct dentry *dentry, struct nfs_fattr *fattr,
 	nfs_fattr_init(fattr);
 	status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
 	if (status == 0)
-		nfs_setattr_update_inode(inode, sattr);
+		nfs_setattr_update_inode(inode, sattr, fattr);
 	dprintk("NFS reply setattr: %d\n", status);
 	return status;
 }
@@ -834,7 +834,7 @@ static int nfs3_write_done(struct rpc_task *task, struct nfs_pgio_header *hdr)
 	if (nfs3_async_handle_jukebox(task, inode))
 		return -EAGAIN;
 	if (task->tk_status >= 0)
-		nfs_post_op_update_inode_force_wcc(inode, hdr->res.fattr);
+		nfs_writeback_update_inode(hdr);
 	return 0;
 }
 
diff --git a/fs/nfs/nfs3xdr.c b/fs/nfs/nfs3xdr.c
index 2a932fd..53852a4 100644
--- a/fs/nfs/nfs3xdr.c
+++ b/fs/nfs/nfs3xdr.c
@@ -1987,6 +1987,11 @@ int nfs3_decode_dirent(struct xdr_stream *xdr, struct nfs_entry *entry,
 		if (entry->fattr->valid & NFS_ATTR_FATTR_V3)
 			entry->d_type = nfs_umode_to_dtype(entry->fattr->mode);
 
+		if (entry->fattr->fileid != entry->ino) {
+			entry->fattr->mounted_on_fileid = entry->ino;
+			entry->fattr->valid |= NFS_ATTR_FATTR_MOUNTED_ON_FILEID;
+		}
+
 		/* In fact, a post_op_fh3: */
 		p = xdr_inline_decode(xdr, 4);
 		if (unlikely(p == NULL))
diff --git a/fs/nfs/nfs4client.c b/fs/nfs/nfs4client.c
index 8646af9..86d6214 100644
--- a/fs/nfs/nfs4client.c
+++ b/fs/nfs/nfs4client.c
@@ -621,6 +621,9 @@ int nfs41_walk_client_list(struct nfs_client *new,
 	spin_lock(&nn->nfs_client_lock);
 	list_for_each_entry(pos, &nn->nfs_client_list, cl_share_link) {
 
+		if (pos == new)
+			goto found;
+
 		if (pos->rpc_ops != new->rpc_ops)
 			continue;
 
@@ -639,10 +642,6 @@ int nfs41_walk_client_list(struct nfs_client *new,
 			prev = pos;
 
 			status = nfs_wait_client_init_complete(pos);
-			if (pos->cl_cons_state == NFS_CS_SESSION_INITING) {
-				nfs4_schedule_lease_recovery(pos);
-				status = nfs4_wait_clnt_recover(pos);
-			}
 			spin_lock(&nn->nfs_client_lock);
 			if (status < 0)
 				break;
@@ -668,7 +667,7 @@ int nfs41_walk_client_list(struct nfs_client *new,
 		 */
 		if (!nfs4_match_client_owner_id(pos, new))
 			continue;
-
+found:
 		atomic_inc(&pos->cl_count);
 		*result = pos;
 		status = 0;
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 88180ac..627f37c 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -901,6 +901,7 @@ static void update_changeattr(struct inode *dir, struct nfs4_change_info *cinfo)
 	if (!cinfo->atomic || cinfo->before != dir->i_version)
 		nfs_force_lookup_revalidate(dir);
 	dir->i_version = cinfo->after;
+	nfsi->attr_gencount = nfs_inc_attr_generation_counter();
 	nfs_fscache_invalidate(dir);
 	spin_unlock(&dir->i_lock);
 }
@@ -1552,6 +1553,9 @@ static int nfs4_open_recover_helper(struct nfs4_opendata *opendata, fmode_t fmod
 
 	opendata->o_arg.open_flags = 0;
 	opendata->o_arg.fmode = fmode;
+	opendata->o_arg.share_access = nfs4_map_atomic_open_share(
+			NFS_SB(opendata->dentry->d_sb),
+			fmode, 0);
 	memset(&opendata->o_res, 0, sizeof(opendata->o_res));
 	memset(&opendata->c_res, 0, sizeof(opendata->c_res));
 	nfs4_init_opendata_res(opendata);
@@ -2413,8 +2417,8 @@ static int _nfs4_do_open(struct inode *dir,
 				opendata->o_res.f_attr, sattr,
 				state, label, olabel);
 		if (status == 0) {
-			nfs_setattr_update_inode(state->inode, sattr);
-			nfs_post_op_update_inode(state->inode, opendata->o_res.f_attr);
+			nfs_setattr_update_inode(state->inode, sattr,
+					opendata->o_res.f_attr);
 			nfs_setsecurity(state->inode, opendata->o_res.f_attr, olabel);
 		}
 	}
@@ -2651,7 +2655,7 @@ static void nfs4_close_done(struct rpc_task *task, void *data)
 		case -NFS4ERR_BAD_STATEID:
 		case -NFS4ERR_EXPIRED:
 			if (!nfs4_stateid_match(&calldata->arg.stateid,
-						&state->stateid)) {
+						&state->open_stateid)) {
 				rpc_restart_call_prepare(task);
 				goto out_release;
 			}
@@ -2687,7 +2691,7 @@ static void nfs4_close_prepare(struct rpc_task *task, void *data)
 	is_rdwr = test_bit(NFS_O_RDWR_STATE, &state->flags);
 	is_rdonly = test_bit(NFS_O_RDONLY_STATE, &state->flags);
 	is_wronly = test_bit(NFS_O_WRONLY_STATE, &state->flags);
-	nfs4_stateid_copy(&calldata->arg.stateid, &state->stateid);
+	nfs4_stateid_copy(&calldata->arg.stateid, &state->open_stateid);
 	/* Calculate the change in open mode */
 	calldata->arg.fmode = 0;
 	if (state->n_rdwr == 0) {
@@ -3288,7 +3292,7 @@ nfs4_proc_setattr(struct dentry *dentry, struct nfs_fattr *fattr,
 
 	status = nfs4_do_setattr(inode, cred, fattr, sattr, state, NULL, label);
 	if (status == 0) {
-		nfs_setattr_update_inode(inode, sattr);
+		nfs_setattr_update_inode(inode, sattr, fattr);
 		nfs_setsecurity(inode, fattr, label);
 	}
 	nfs4_label_free(label);
@@ -4234,7 +4238,7 @@ static int nfs4_write_done_cb(struct rpc_task *task,
 	}
 	if (task->tk_status >= 0) {
 		renew_lease(NFS_SERVER(inode), hdr->timestamp);
-		nfs_post_op_update_inode_force_wcc(inode, &hdr->fattr);
+		nfs_writeback_update_inode(hdr);
 	}
 	return 0;
 }
@@ -6893,9 +6897,13 @@ static int _nfs4_proc_exchange_id(struct nfs_client *clp, struct rpc_cred *cred,
 
 	if (status == 0) {
 		clp->cl_clientid = res.clientid;
-		clp->cl_exchange_flags = (res.flags & ~EXCHGID4_FLAG_CONFIRMED_R);
-		if (!(res.flags & EXCHGID4_FLAG_CONFIRMED_R))
+		clp->cl_exchange_flags = res.flags;
+		/* Client ID is not confirmed */
+		if (!(res.flags & EXCHGID4_FLAG_CONFIRMED_R)) {
+			clear_bit(NFS4_SESSION_ESTABLISHED,
+					&clp->cl_session->session_state);
 			clp->cl_seqid = res.seqid;
+		}
 
 		kfree(clp->cl_serverowner);
 		clp->cl_serverowner = res.server_owner;
@@ -7227,6 +7235,9 @@ static void nfs4_update_session(struct nfs4_session *session,
 		struct nfs41_create_session_res *res)
 {
 	nfs4_copy_sessionid(&session->sess_id, &res->sessionid);
+	/* Mark client id and session as being confirmed */
+	session->clp->cl_exchange_flags |= EXCHGID4_FLAG_CONFIRMED_R;
+	set_bit(NFS4_SESSION_ESTABLISHED, &session->session_state);
 	session->flags = res->flags;
 	memcpy(&session->fc_attrs, &res->fc_attrs, sizeof(session->fc_attrs));
 	if (res->flags & SESSION4_BACK_CHAN)
@@ -7322,8 +7333,8 @@ int nfs4_proc_destroy_session(struct nfs4_session *session,
 	dprintk("--> nfs4_proc_destroy_session\n");
 
 	/* session is still being setup */
-	if (session->clp->cl_cons_state != NFS_CS_READY)
-		return status;
+	if (!test_and_clear_bit(NFS4_SESSION_ESTABLISHED, &session->session_state))
+		return 0;
 
 	status = rpc_call_sync(session->clp->cl_rpcclient, &msg, RPC_TASK_TIMEOUT);
 	trace_nfs4_destroy_session(session->clp, status);
diff --git a/fs/nfs/nfs4session.h b/fs/nfs/nfs4session.h
index fc46c74..e3ea2c5 100644
--- a/fs/nfs/nfs4session.h
+++ b/fs/nfs/nfs4session.h
@@ -70,6 +70,7 @@ struct nfs4_session {
 
 enum nfs4_session_state {
 	NFS4_SESSION_INITING,
+	NFS4_SESSION_ESTABLISHED,
 };
 
 extern int nfs4_setup_slot_table(struct nfs4_slot_table *tbl,
diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c
index 5ad908e..f95e3b5 100644
--- a/fs/nfs/nfs4state.c
+++ b/fs/nfs/nfs4state.c
@@ -346,9 +346,23 @@ int nfs41_discover_server_trunking(struct nfs_client *clp,
 	status = nfs4_proc_exchange_id(clp, cred);
 	if (status != NFS4_OK)
 		return status;
-	set_bit(NFS4CLNT_LEASE_CONFIRM, &clp->cl_state);
 
-	return nfs41_walk_client_list(clp, result, cred);
+	status = nfs41_walk_client_list(clp, result, cred);
+	if (status < 0)
+		return status;
+	if (clp != *result)
+		return 0;
+
+	/* Purge state if the client id was established in a prior instance */
+	if (clp->cl_exchange_flags & EXCHGID4_FLAG_CONFIRMED_R)
+		set_bit(NFS4CLNT_PURGE_STATE, &clp->cl_state);
+	else
+		set_bit(NFS4CLNT_LEASE_CONFIRM, &clp->cl_state);
+	nfs4_schedule_state_manager(clp);
+	status = nfs_wait_client_init_complete(clp);
+	if (status < 0)
+		nfs_put_client(clp);
+	return status;
 }
 
 #endif /* CONFIG_NFS_V4_1 */
diff --git a/fs/nfs/proc.c b/fs/nfs/proc.c
index b09cc23..c63189a 100644
--- a/fs/nfs/proc.c
+++ b/fs/nfs/proc.c
@@ -139,7 +139,7 @@ nfs_proc_setattr(struct dentry *dentry, struct nfs_fattr *fattr,
 	nfs_fattr_init(fattr);
 	status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
 	if (status == 0)
-		nfs_setattr_update_inode(inode, sattr);
+		nfs_setattr_update_inode(inode, sattr, fattr);
 	dprintk("NFS reply setattr: %d\n", status);
 	return status;
 }
@@ -609,10 +609,8 @@ static int nfs_proc_pgio_rpc_prepare(struct rpc_task *task,
 
 static int nfs_write_done(struct rpc_task *task, struct nfs_pgio_header *hdr)
 {
-	struct inode *inode = hdr->inode;
-
 	if (task->tk_status >= 0)
-		nfs_post_op_update_inode_force_wcc(inode, hdr->res.fattr);
+		nfs_writeback_update_inode(hdr);
 	return 0;
 }
 
diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index 595d81e..849ed78 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -1377,6 +1377,36 @@ static int nfs_should_remove_suid(const struct inode *inode)
 	return 0;
 }
 
+static void nfs_writeback_check_extend(struct nfs_pgio_header *hdr,
+		struct nfs_fattr *fattr)
+{
+	struct nfs_pgio_args *argp = &hdr->args;
+	struct nfs_pgio_res *resp = &hdr->res;
+
+	if (!(fattr->valid & NFS_ATTR_FATTR_SIZE))
+		return;
+	if (argp->offset + resp->count != fattr->size)
+		return;
+	if (nfs_size_to_loff_t(fattr->size) < i_size_read(hdr->inode))
+		return;
+	/* Set attribute barrier */
+	nfs_fattr_set_barrier(fattr);
+}
+
+void nfs_writeback_update_inode(struct nfs_pgio_header *hdr)
+{
+	struct nfs_fattr *fattr = hdr->res.fattr;
+	struct inode *inode = hdr->inode;
+
+	if (fattr == NULL)
+		return;
+	spin_lock(&inode->i_lock);
+	nfs_writeback_check_extend(hdr, fattr);
+	nfs_post_op_update_inode_force_wcc_locked(inode, fattr);
+	spin_unlock(&inode->i_lock);
+}
+EXPORT_SYMBOL_GPL(nfs_writeback_update_inode);
+
 /*
  * This function is called when the WRITE call is complete.
  */
diff --git a/fs/nfsd/blocklayout.c b/fs/nfsd/blocklayout.c
index cdbc78c..03d647b 100644
--- a/fs/nfsd/blocklayout.c
+++ b/fs/nfsd/blocklayout.c
@@ -137,7 +137,7 @@ nfsd4_block_proc_layoutget(struct inode *inode, const struct svc_fh *fhp,
 	seg->offset = iomap.offset;
 	seg->length = iomap.length;
 
-	dprintk("GET: %lld:%lld %d\n", bex->foff, bex->len, bex->es);
+	dprintk("GET: 0x%llx:0x%llx %d\n", bex->foff, bex->len, bex->es);
 	return 0;
 
 out_error:
diff --git a/fs/nfsd/blocklayoutxdr.c b/fs/nfsd/blocklayoutxdr.c
index 9da89fd..9aa2796 100644
--- a/fs/nfsd/blocklayoutxdr.c
+++ b/fs/nfsd/blocklayoutxdr.c
@@ -122,19 +122,19 @@ nfsd4_block_decode_layoutupdate(__be32 *p, u32 len, struct iomap **iomapp,
 
 		p = xdr_decode_hyper(p, &bex.foff);
 		if (bex.foff & (block_size - 1)) {
-			dprintk("%s: unaligned offset %lld\n",
+			dprintk("%s: unaligned offset 0x%llx\n",
 				__func__, bex.foff);
 			goto fail;
 		}
 		p = xdr_decode_hyper(p, &bex.len);
 		if (bex.len & (block_size - 1)) {
-			dprintk("%s: unaligned length %lld\n",
+			dprintk("%s: unaligned length 0x%llx\n",
 				__func__, bex.foff);
 			goto fail;
 		}
 		p = xdr_decode_hyper(p, &bex.soff);
 		if (bex.soff & (block_size - 1)) {
-			dprintk("%s: unaligned disk offset %lld\n",
+			dprintk("%s: unaligned disk offset 0x%llx\n",
 				__func__, bex.soff);
 			goto fail;
 		}
diff --git a/fs/nfsd/nfs4layouts.c b/fs/nfsd/nfs4layouts.c
index 3c1bfa1..6904213 100644
--- a/fs/nfsd/nfs4layouts.c
+++ b/fs/nfsd/nfs4layouts.c
@@ -118,7 +118,7 @@ void nfsd4_setup_layout_type(struct svc_export *exp)
 {
 	struct super_block *sb = exp->ex_path.mnt->mnt_sb;
 
-	if (exp->ex_flags & NFSEXP_NOPNFS)
+	if (!(exp->ex_flags & NFSEXP_PNFS))
 		return;
 
 	if (sb->s_export_op->get_uuid &&
@@ -440,15 +440,14 @@ nfsd4_return_file_layout(struct nfs4_layout *lp, struct nfsd4_layout_seg *seg,
 			list_move_tail(&lp->lo_perstate, reaplist);
 			return;
 		}
-		end = seg->offset;
+		lo->offset = layout_end(seg);
 	} else {
 		/* retain the whole layout segment on a split. */
 		if (layout_end(seg) < end) {
 			dprintk("%s: split not supported\n", __func__);
 			return;
 		}
-
-		lo->offset = layout_end(seg);
+		end = seg->offset;
 	}
 
 	layout_update_len(lo, end);
@@ -513,6 +512,9 @@ nfsd4_return_client_layouts(struct svc_rqst *rqstp,
 
 	spin_lock(&clp->cl_lock);
 	list_for_each_entry_safe(ls, n, &clp->cl_lo_states, ls_perclnt) {
+		if (ls->ls_layout_type != lrp->lr_layout_type)
+			continue;
+
 		if (lrp->lr_return_type == RETURN_FSID &&
 		    !fh_fsid_match(&ls->ls_stid.sc_file->fi_fhandle,
 				   &cstate->current_fh.fh_handle))
@@ -587,7 +589,7 @@ nfsd4_cb_layout_fail(struct nfs4_layout_stateid *ls)
 
 	rpc_ntop((struct sockaddr *)&clp->cl_addr, addr_str, sizeof(addr_str));
 
-	nfsd4_cb_layout_fail(ls);
+	trace_layout_recall_fail(&ls->ls_stid.sc_stateid);
 
 	printk(KERN_WARNING
 		"nfsd: client %s failed to respond to layout recall. "
diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c
index d30bea8d..92b9d97 100644
--- a/fs/nfsd/nfs4proc.c
+++ b/fs/nfsd/nfs4proc.c
@@ -1237,8 +1237,8 @@ nfsd4_getdeviceinfo(struct svc_rqst *rqstp,
 		nfserr = ops->proc_getdeviceinfo(exp->ex_path.mnt->mnt_sb, gdp);
 
 	gdp->gd_notify_types &= ops->notify_types;
-	exp_put(exp);
 out:
+	exp_put(exp);
 	return nfserr;
 }
 
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index f6b2a09..8ba1d88 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -1638,7 +1638,7 @@ __destroy_client(struct nfs4_client *clp)
 		nfs4_put_stid(&dp->dl_stid);
 	}
 	while (!list_empty(&clp->cl_revoked)) {
-		dp = list_entry(reaplist.next, struct nfs4_delegation, dl_recall_lru);
+		dp = list_entry(clp->cl_revoked.next, struct nfs4_delegation, dl_recall_lru);
 		list_del_init(&dp->dl_recall_lru);
 		nfs4_put_stid(&dp->dl_stid);
 	}
@@ -3221,7 +3221,7 @@ alloc_init_open_stateowner(unsigned int strhashval, struct nfsd4_open *open,
 	} else
 		nfs4_free_openowner(&oo->oo_owner);
 	spin_unlock(&clp->cl_lock);
-	return oo;
+	return ret;
 }
 
 static void init_open_stateid(struct nfs4_ol_stateid *stp, struct nfs4_file *fp, struct nfsd4_open *open) {
@@ -5062,7 +5062,7 @@ alloc_init_lock_stateowner(unsigned int strhashval, struct nfs4_client *clp,
 	} else
 		nfs4_free_lockowner(&lo->lo_owner);
 	spin_unlock(&clp->cl_lock);
-	return lo;
+	return ret;
 }
 
 static void
diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index df5e66c..5fb7e78 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -1562,7 +1562,11 @@ nfsd4_decode_layoutget(struct nfsd4_compoundargs *argp,
 	p = xdr_decode_hyper(p, &lgp->lg_seg.offset);
 	p = xdr_decode_hyper(p, &lgp->lg_seg.length);
 	p = xdr_decode_hyper(p, &lgp->lg_minlength);
-	nfsd4_decode_stateid(argp, &lgp->lg_sid);
+
+	status = nfsd4_decode_stateid(argp, &lgp->lg_sid);
+	if (status)
+		return status;
+
 	READ_BUF(4);
 	lgp->lg_maxcount = be32_to_cpup(p++);
 
@@ -1580,7 +1584,11 @@ nfsd4_decode_layoutcommit(struct nfsd4_compoundargs *argp,
 	p = xdr_decode_hyper(p, &lcp->lc_seg.offset);
 	p = xdr_decode_hyper(p, &lcp->lc_seg.length);
 	lcp->lc_reclaim = be32_to_cpup(p++);
-	nfsd4_decode_stateid(argp, &lcp->lc_sid);
+
+	status = nfsd4_decode_stateid(argp, &lcp->lc_sid);
+	if (status)
+		return status;
+
 	READ_BUF(4);
 	lcp->lc_newoffset = be32_to_cpup(p++);
 	if (lcp->lc_newoffset) {
@@ -1628,7 +1636,11 @@ nfsd4_decode_layoutreturn(struct nfsd4_compoundargs *argp,
 		READ_BUF(16);
 		p = xdr_decode_hyper(p, &lrp->lr_seg.offset);
 		p = xdr_decode_hyper(p, &lrp->lr_seg.length);
-		nfsd4_decode_stateid(argp, &lrp->lr_sid);
+
+		status = nfsd4_decode_stateid(argp, &lrp->lr_sid);
+		if (status)
+			return status;
+
 		READ_BUF(4);
 		lrp->lrf_body_len = be32_to_cpup(p++);
 		if (lrp->lrf_body_len > 0) {
@@ -4123,7 +4135,7 @@ nfsd4_encode_layoutreturn(struct nfsd4_compoundres *resp, __be32 nfserr,
 		return nfserr_resource;
 	*p++ = cpu_to_be32(lrp->lrs_present);
 	if (lrp->lrs_present)
-		nfsd4_encode_stateid(xdr, &lrp->lr_sid);
+		return nfsd4_encode_stateid(xdr, &lrp->lr_sid);
 	return nfs_ok;
 }
 #endif /* CONFIG_NFSD_PNFS */
diff --git a/fs/nfsd/nfscache.c b/fs/nfsd/nfscache.c
index 83a9694..46ec934 100644
--- a/fs/nfsd/nfscache.c
+++ b/fs/nfsd/nfscache.c
@@ -165,13 +165,17 @@ int nfsd_reply_cache_init(void)
 {
 	unsigned int hashsize;
 	unsigned int i;
+	int status = 0;
 
 	max_drc_entries = nfsd_cache_size_limit();
 	atomic_set(&num_drc_entries, 0);
 	hashsize = nfsd_hashsize(max_drc_entries);
 	maskbits = ilog2(hashsize);
 
-	register_shrinker(&nfsd_reply_cache_shrinker);
+	status = register_shrinker(&nfsd_reply_cache_shrinker);
+	if (status)
+		return status;
+
 	drc_slab = kmem_cache_create("nfsd_drc", sizeof(struct svc_cacherep),
 					0, 0, NULL);
 	if (!drc_slab)
diff --git a/fs/nilfs2/btree.c b/fs/nilfs2/btree.c
index b2e3ff3..ecdbae1 100644
--- a/fs/nilfs2/btree.c
+++ b/fs/nilfs2/btree.c
@@ -31,6 +31,8 @@
 #include "alloc.h"
 #include "dat.h"
 
+static void __nilfs_btree_init(struct nilfs_bmap *bmap);
+
 static struct nilfs_btree_path *nilfs_btree_alloc_path(void)
 {
 	struct nilfs_btree_path *path;
@@ -368,6 +370,34 @@ static int nilfs_btree_node_broken(const struct nilfs_btree_node *node,
 	return ret;
 }
 
+/**
+ * nilfs_btree_root_broken - verify consistency of btree root node
+ * @node: btree root node to be examined
+ * @ino: inode number
+ *
+ * Return Value: If node is broken, 1 is returned. Otherwise, 0 is returned.
+ */
+static int nilfs_btree_root_broken(const struct nilfs_btree_node *node,
+				   unsigned long ino)
+{
+	int level, flags, nchildren;
+	int ret = 0;
+
+	level = nilfs_btree_node_get_level(node);
+	flags = nilfs_btree_node_get_flags(node);
+	nchildren = nilfs_btree_node_get_nchildren(node);
+
+	if (unlikely(level < NILFS_BTREE_LEVEL_NODE_MIN ||
+		     level > NILFS_BTREE_LEVEL_MAX ||
+		     nchildren < 0 ||
+		     nchildren > NILFS_BTREE_ROOT_NCHILDREN_MAX)) {
+		pr_crit("NILFS: bad btree root (inode number=%lu): level = %d, flags = 0x%x, nchildren = %d\n",
+			ino, level, flags, nchildren);
+		ret = 1;
+	}
+	return ret;
+}
+
 int nilfs_btree_broken_node_block(struct buffer_head *bh)
 {
 	int ret;
@@ -1713,7 +1743,7 @@ nilfs_btree_commit_convert_and_insert(struct nilfs_bmap *btree,
 
 	/* convert and insert */
 	dat = NILFS_BMAP_USE_VBN(btree) ? nilfs_bmap_get_dat(btree) : NULL;
-	nilfs_btree_init(btree);
+	__nilfs_btree_init(btree);
 	if (nreq != NULL) {
 		nilfs_bmap_commit_alloc_ptr(btree, dreq, dat);
 		nilfs_bmap_commit_alloc_ptr(btree, nreq, dat);
@@ -2294,12 +2324,23 @@ static const struct nilfs_bmap_operations nilfs_btree_ops_gc = {
 	.bop_gather_data	=	NULL,
 };
 
-int nilfs_btree_init(struct nilfs_bmap *bmap)
+static void __nilfs_btree_init(struct nilfs_bmap *bmap)
 {
 	bmap->b_ops = &nilfs_btree_ops;
 	bmap->b_nchildren_per_block =
 		NILFS_BTREE_NODE_NCHILDREN_MAX(nilfs_btree_node_size(bmap));
-	return 0;
+}
+
+int nilfs_btree_init(struct nilfs_bmap *bmap)
+{
+	int ret = 0;
+
+	__nilfs_btree_init(bmap);
+
+	if (nilfs_btree_root_broken(nilfs_btree_get_root(bmap),
+				    bmap->b_inode->i_ino))
+		ret = -EIO;
+	return ret;
 }
 
 void nilfs_btree_init_gc(struct nilfs_bmap *bmap)
diff --git a/fs/nilfs2/segment.c b/fs/nilfs2/segment.c
index 469086b..0c3f303 100644
--- a/fs/nilfs2/segment.c
+++ b/fs/nilfs2/segment.c
@@ -1907,6 +1907,7 @@ static void nilfs_segctor_drop_written_files(struct nilfs_sc_info *sci,
 					     struct the_nilfs *nilfs)
 {
 	struct nilfs_inode_info *ii, *n;
+	int during_mount = !(sci->sc_super->s_flags & MS_ACTIVE);
 	int defer_iput = false;
 
 	spin_lock(&nilfs->ns_inode_lock);
@@ -1919,10 +1920,10 @@ static void nilfs_segctor_drop_written_files(struct nilfs_sc_info *sci,
 		brelse(ii->i_bh);
 		ii->i_bh = NULL;
 		list_del_init(&ii->i_dirty);
-		if (!ii->vfs_inode.i_nlink) {
+		if (!ii->vfs_inode.i_nlink || during_mount) {
 			/*
-			 * Defer calling iput() to avoid a deadlock
-			 * over I_SYNC flag for inodes with i_nlink == 0
+			 * Defer calling iput() to avoid deadlocks if
+			 * i_nlink == 0 or mount is not yet finished.
 			 */
 			list_add_tail(&ii->i_dirty, &sci->sc_iput_queue);
 			defer_iput = true;
diff --git a/fs/notify/fanotify/fanotify.c b/fs/notify/fanotify/fanotify.c
index 9a66ff7..d2f97ec 100644
--- a/fs/notify/fanotify/fanotify.c
+++ b/fs/notify/fanotify/fanotify.c
@@ -143,7 +143,8 @@ static bool fanotify_should_send_event(struct fsnotify_mark *inode_mark,
 	    !(marks_mask & FS_ISDIR & ~marks_ignored_mask))
 		return false;
 
-	if (event_mask & marks_mask & ~marks_ignored_mask)
+	if (event_mask & FAN_ALL_OUTGOING_EVENTS & marks_mask &
+				 ~marks_ignored_mask)
 		return true;
 
 	return false;
diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
index 46e0d4e..ba1790e 100644
--- a/fs/ocfs2/file.c
+++ b/fs/ocfs2/file.c
@@ -2394,7 +2394,6 @@ relock:
 		/*
 		 * for completing the rest of the request.
 		 */
-		*ppos += written;
 		count -= written;
 		written_buffered = generic_perform_write(file, from, *ppos);
 		/*
@@ -2409,7 +2408,6 @@ relock:
 			goto out_dio;
 		}
 
-		iocb->ki_pos = *ppos + written_buffered;
 		/* We need to ensure that the page cache pages are written to
 		 * disk and invalidated to preserve the expected O_DIRECT
 		 * semantics.
@@ -2418,6 +2416,7 @@ relock:
 		ret = filemap_write_and_wait_range(file->f_mapping, *ppos,
 				endbyte);
 		if (ret == 0) {
+			iocb->ki_pos = *ppos + written_buffered;
 			written += written_buffered;
 			invalidate_mapping_pages(mapping,
 					*ppos >> PAGE_CACHE_SHIFT,
@@ -2440,10 +2439,14 @@ out_dio:
 	/* buffered aio wouldn't have proper lock coverage today */
 	BUG_ON(ret == -EIOCBQUEUED && !(file->f_flags & O_DIRECT));
 
+	if (unlikely(written <= 0))
+		goto no_sync;
+
 	if (((file->f_flags & O_DSYNC) && !direct_io) || IS_SYNC(inode) ||
 	    ((file->f_flags & O_DIRECT) && !direct_io)) {
-		ret = filemap_fdatawrite_range(file->f_mapping, *ppos,
-					       *ppos + count - 1);
+		ret = filemap_fdatawrite_range(file->f_mapping,
+					       iocb->ki_pos - written,
+					       iocb->ki_pos - 1);
 		if (ret < 0)
 			written = ret;
 
@@ -2454,10 +2457,12 @@ out_dio:
 		}
 
 		if (!ret)
-			ret = filemap_fdatawait_range(file->f_mapping, *ppos,
-						      *ppos + count - 1);
+			ret = filemap_fdatawait_range(file->f_mapping,
+						      iocb->ki_pos - written,
+						      iocb->ki_pos - 1);
 	}
 
+no_sync:
 	/*
 	 * deep in g_f_a_w_n()->ocfs2_direct_IO we pass in a ocfs2_dio_end_io
 	 * function pointer which is called when o_direct io completes so that
diff --git a/fs/ocfs2/ocfs2.h b/fs/ocfs2/ocfs2.h
index 8490c64..460c6c3 100644
--- a/fs/ocfs2/ocfs2.h
+++ b/fs/ocfs2/ocfs2.h
@@ -502,7 +502,7 @@ static inline int ocfs2_writes_unwritten_extents(struct ocfs2_super *osb)
 
 static inline int ocfs2_supports_append_dio(struct ocfs2_super *osb)
 {
-	if (osb->s_feature_ro_compat & OCFS2_FEATURE_RO_COMPAT_APPEND_DIO)
+	if (osb->s_feature_incompat & OCFS2_FEATURE_INCOMPAT_APPEND_DIO)
 		return 1;
 	return 0;
 }
diff --git a/fs/ocfs2/ocfs2_fs.h b/fs/ocfs2/ocfs2_fs.h
index 20e37a3..db64ce2 100644
--- a/fs/ocfs2/ocfs2_fs.h
+++ b/fs/ocfs2/ocfs2_fs.h
@@ -102,11 +102,11 @@
 					 | OCFS2_FEATURE_INCOMPAT_INDEXED_DIRS \
 					 | OCFS2_FEATURE_INCOMPAT_REFCOUNT_TREE \
 					 | OCFS2_FEATURE_INCOMPAT_DISCONTIG_BG	\
-					 | OCFS2_FEATURE_INCOMPAT_CLUSTERINFO)
+					 | OCFS2_FEATURE_INCOMPAT_CLUSTERINFO \
+					 | OCFS2_FEATURE_INCOMPAT_APPEND_DIO)
 #define OCFS2_FEATURE_RO_COMPAT_SUPP	(OCFS2_FEATURE_RO_COMPAT_UNWRITTEN \
 					 | OCFS2_FEATURE_RO_COMPAT_USRQUOTA \
-					 | OCFS2_FEATURE_RO_COMPAT_GRPQUOTA \
-					 | OCFS2_FEATURE_RO_COMPAT_APPEND_DIO)
+					 | OCFS2_FEATURE_RO_COMPAT_GRPQUOTA)
 
 /*
  * Heartbeat-only devices are missing journals and other files.  The
@@ -179,6 +179,11 @@
 #define OCFS2_FEATURE_INCOMPAT_CLUSTERINFO	0x4000
 
 /*
+ * Append Direct IO support
+ */
+#define OCFS2_FEATURE_INCOMPAT_APPEND_DIO	0x8000
+
+/*
  * backup superblock flag is used to indicate that this volume
  * has backup superblocks.
  */
@@ -200,10 +205,6 @@
 #define OCFS2_FEATURE_RO_COMPAT_USRQUOTA	0x0002
 #define OCFS2_FEATURE_RO_COMPAT_GRPQUOTA	0x0004
 
-/*
- * Append Direct IO support
- */
-#define OCFS2_FEATURE_RO_COMPAT_APPEND_DIO	0x0008
 
 /* The byte offset of the first backup block will be 1G.
  * The following will be 4G, 16G, 64G, 256G and 1T.
diff --git a/fs/overlayfs/super.c b/fs/overlayfs/super.c
index b90952f..5f0d199 100644
--- a/fs/overlayfs/super.c
+++ b/fs/overlayfs/super.c
@@ -529,8 +529,7 @@ static int ovl_remount(struct super_block *sb, int *flags, char *data)
 {
 	struct ovl_fs *ufs = sb->s_fs_info;
 
-	if (!(*flags & MS_RDONLY) &&
-	    (!ufs->upper_mnt || (ufs->upper_mnt->mnt_sb->s_flags & MS_RDONLY)))
+	if (!(*flags & MS_RDONLY) && !ufs->upper_mnt)
 		return -EROFS;
 
 	return 0;
@@ -615,9 +614,19 @@ static int ovl_parse_opt(char *opt, struct ovl_config *config)
 			break;
 
 		default:
+			pr_err("overlayfs: unrecognized mount option \"%s\" or missing value\n", p);
 			return -EINVAL;
 		}
 	}
+
+	/* Workdir is useless in non-upper mount */
+	if (!config->upperdir && config->workdir) {
+		pr_info("overlayfs: option \"workdir=%s\" is useless in a non-upper mount, ignore\n",
+			config->workdir);
+		kfree(config->workdir);
+		config->workdir = NULL;
+	}
+
 	return 0;
 }
 
@@ -837,7 +846,6 @@ static int ovl_fill_super(struct super_block *sb, void *data, int silent)
 
 	sb->s_stack_depth = 0;
 	if (ufs->config.upperdir) {
-		/* FIXME: workdir is not needed for a R/O mount */
 		if (!ufs->config.workdir) {
 			pr_err("overlayfs: missing 'workdir'\n");
 			goto out_free_config;
@@ -847,6 +855,13 @@ static int ovl_fill_super(struct super_block *sb, void *data, int silent)
 		if (err)
 			goto out_free_config;
 
+		/* Upper fs should not be r/o */
+		if (upperpath.mnt->mnt_sb->s_flags & MS_RDONLY) {
+			pr_err("overlayfs: upper fs is r/o, try multi-lower layers mount\n");
+			err = -EINVAL;
+			goto out_put_upperpath;
+		}
+
 		err = ovl_mount_dir(ufs->config.workdir, &workpath);
 		if (err)
 			goto out_put_upperpath;
@@ -869,8 +884,14 @@ static int ovl_fill_super(struct super_block *sb, void *data, int silent)
 
 	err = -EINVAL;
 	stacklen = ovl_split_lowerdirs(lowertmp);
-	if (stacklen > OVL_MAX_STACK)
+	if (stacklen > OVL_MAX_STACK) {
+		pr_err("overlayfs: too many lower directries, limit is %d\n",
+		       OVL_MAX_STACK);
 		goto out_free_lowertmp;
+	} else if (!ufs->config.upperdir && stacklen == 1) {
+		pr_err("overlayfs: at least 2 lowerdir are needed while upperdir nonexistent\n");
+		goto out_free_lowertmp;
+	}
 
 	stack = kcalloc(stacklen, sizeof(struct path), GFP_KERNEL);
 	if (!stack)
@@ -932,8 +953,8 @@ static int ovl_fill_super(struct super_block *sb, void *data, int silent)
 		ufs->numlower++;
 	}
 
-	/* If the upper fs is r/o or nonexistent, we mark overlayfs r/o too */
-	if (!ufs->upper_mnt || (ufs->upper_mnt->mnt_sb->s_flags & MS_RDONLY))
+	/* If the upper fs is nonexistent, we mark overlayfs r/o too */
+	if (!ufs->upper_mnt)
 		sb->s_flags |= MS_RDONLY;
 
 	sb->s_d_op = &ovl_dentry_operations;
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index 956b75d..6dee68d 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -1325,6 +1325,9 @@ out:
 
 static int pagemap_open(struct inode *inode, struct file *file)
 {
+	/* do not disclose physical addresses: attack vector */
+	if (!capable(CAP_SYS_ADMIN))
+		return -EPERM;
 	pr_warn_once("Bits 55-60 of /proc/PID/pagemap entries are about "
 			"to stop being page-shift some time soon. See the "
 			"linux/Documentation/vm/pagemap.txt for details.\n");
diff --git a/fs/sysfs/group.c b/fs/sysfs/group.c
index 2554d88..b400c04 100644
--- a/fs/sysfs/group.c
+++ b/fs/sysfs/group.c
@@ -41,7 +41,7 @@ static int create_files(struct kernfs_node *parent, struct kobject *kobj,
 
 	if (grp->attrs) {
 		for (i = 0, attr = grp->attrs; *attr && !error; i++, attr++) {
-			umode_t mode = 0;
+			umode_t mode = (*attr)->mode;
 
 			/*
 			 * In update mode, we're changing the permissions or
@@ -55,9 +55,14 @@ static int create_files(struct kernfs_node *parent, struct kobject *kobj,
 				if (!mode)
 					continue;
 			}
+
+			WARN(mode & ~(SYSFS_PREALLOC | 0664),
+			     "Attribute %s: Invalid permissions 0%o\n",
+			     (*attr)->name, mode);
+
+			mode &= SYSFS_PREALLOC | 0664;
 			error = sysfs_add_file_mode_ns(parent, *attr, false,
-						       (*attr)->mode | mode,
-						       NULL);
+						       mode, NULL);
 			if (unlikely(error))
 				break;
 		}
diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c
index ce615d1..a2e1cb8 100644
--- a/fs/xfs/xfs_file.c
+++ b/fs/xfs/xfs_file.c
@@ -397,7 +397,8 @@ STATIC int				/* error (positive) */
 xfs_zero_last_block(
 	struct xfs_inode	*ip,
 	xfs_fsize_t		offset,
-	xfs_fsize_t		isize)
+	xfs_fsize_t		isize,
+	bool			*did_zeroing)
 {
 	struct xfs_mount	*mp = ip->i_mount;
 	xfs_fileoff_t		last_fsb = XFS_B_TO_FSBT(mp, isize);
@@ -425,6 +426,7 @@ xfs_zero_last_block(
 	zero_len = mp->m_sb.sb_blocksize - zero_offset;
 	if (isize + zero_len > offset)
 		zero_len = offset - isize;
+	*did_zeroing = true;
 	return xfs_iozero(ip, isize, zero_len);
 }
 
@@ -443,7 +445,8 @@ int					/* error (positive) */
 xfs_zero_eof(
 	struct xfs_inode	*ip,
 	xfs_off_t		offset,		/* starting I/O offset */
-	xfs_fsize_t		isize)		/* current inode size */
+	xfs_fsize_t		isize,		/* current inode size */
+	bool			*did_zeroing)
 {
 	struct xfs_mount	*mp = ip->i_mount;
 	xfs_fileoff_t		start_zero_fsb;
@@ -465,7 +468,7 @@ xfs_zero_eof(
 	 * We only zero a part of that block so it is handled specially.
 	 */
 	if (XFS_B_FSB_OFFSET(mp, isize) != 0) {
-		error = xfs_zero_last_block(ip, offset, isize);
+		error = xfs_zero_last_block(ip, offset, isize, did_zeroing);
 		if (error)
 			return error;
 	}
@@ -525,6 +528,7 @@ xfs_zero_eof(
 		if (error)
 			return error;
 
+		*did_zeroing = true;
 		start_zero_fsb = imap.br_startoff + imap.br_blockcount;
 		ASSERT(start_zero_fsb <= (end_zero_fsb + 1));
 	}
@@ -567,13 +571,15 @@ restart:
 	 * having to redo all checks before.
 	 */
 	if (*pos > i_size_read(inode)) {
+		bool	zero = false;
+
 		if (*iolock == XFS_IOLOCK_SHARED) {
 			xfs_rw_iunlock(ip, *iolock);
 			*iolock = XFS_IOLOCK_EXCL;
 			xfs_rw_ilock(ip, *iolock);
 			goto restart;
 		}
-		error = xfs_zero_eof(ip, *pos, i_size_read(inode));
+		error = xfs_zero_eof(ip, *pos, i_size_read(inode), &zero);
 		if (error)
 			return error;
 	}
diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
index daafa1f..6163767 100644
--- a/fs/xfs/xfs_inode.c
+++ b/fs/xfs/xfs_inode.c
@@ -2867,6 +2867,10 @@ xfs_rename(
 	 * Handle RENAME_EXCHANGE flags
 	 */
 	if (flags & RENAME_EXCHANGE) {
+		if (target_ip == NULL) {
+			error = -EINVAL;
+			goto error_return;
+		}
 		error = xfs_cross_rename(tp, src_dp, src_name, src_ip,
 					 target_dp, target_name, target_ip,
 					 &free_list, &first_block, spaceres);
diff --git a/fs/xfs/xfs_inode.h b/fs/xfs/xfs_inode.h
index 86cd6b3..a1cd55f 100644
--- a/fs/xfs/xfs_inode.h
+++ b/fs/xfs/xfs_inode.h
@@ -384,10 +384,11 @@ enum xfs_prealloc_flags {
 	XFS_PREALLOC_INVISIBLE	= (1 << 4),
 };
 
-int		xfs_update_prealloc_flags(struct xfs_inode *,
-			enum xfs_prealloc_flags);
-int		xfs_zero_eof(struct xfs_inode *, xfs_off_t, xfs_fsize_t);
-int		xfs_iozero(struct xfs_inode *, loff_t, size_t);
+int	xfs_update_prealloc_flags(struct xfs_inode *ip,
+				  enum xfs_prealloc_flags flags);
+int	xfs_zero_eof(struct xfs_inode *ip, xfs_off_t offset,
+		     xfs_fsize_t isize, bool *did_zeroing);
+int	xfs_iozero(struct xfs_inode *ip, loff_t pos, size_t count);
 
 
 #define IHOLD(ip) \
diff --git a/fs/xfs/xfs_iops.c b/fs/xfs/xfs_iops.c
index d919ad7..e53a903 100644
--- a/fs/xfs/xfs_iops.c
+++ b/fs/xfs/xfs_iops.c
@@ -751,6 +751,7 @@ xfs_setattr_size(
 	int			error;
 	uint			lock_flags = 0;
 	uint			commit_flags = 0;
+	bool			did_zeroing = false;
 
 	trace_xfs_setattr(ip);
 
@@ -794,20 +795,16 @@ xfs_setattr_size(
 		return error;
 
 	/*
-	 * Now we can make the changes.  Before we join the inode to the
-	 * transaction, take care of the part of the truncation that must be
-	 * done without the inode lock.  This needs to be done before joining
-	 * the inode to the transaction, because the inode cannot be unlocked
-	 * once it is a part of the transaction.
+	 * File data changes must be complete before we start the transaction to
+	 * modify the inode.  This needs to be done before joining the inode to
+	 * the transaction because the inode cannot be unlocked once it is a
+	 * part of the transaction.
+	 *
+	 * Start with zeroing any data block beyond EOF that we may expose on
+	 * file extension.
 	 */
 	if (newsize > oldsize) {
-		/*
-		 * Do the first part of growing a file: zero any data in the
-		 * last block that is beyond the old EOF.  We need to do this
-		 * before the inode is joined to the transaction to modify
-		 * i_size.
-		 */
-		error = xfs_zero_eof(ip, newsize, oldsize);
+		error = xfs_zero_eof(ip, newsize, oldsize, &did_zeroing);
 		if (error)
 			return error;
 	}
@@ -817,23 +814,18 @@ xfs_setattr_size(
 	 * any previous writes that are beyond the on disk EOF and the new
 	 * EOF that have not been written out need to be written here.  If we
 	 * do not write the data out, we expose ourselves to the null files
-	 * problem.
-	 *
-	 * Only flush from the on disk size to the smaller of the in memory
-	 * file size or the new size as that's the range we really care about
-	 * here and prevents waiting for other data not within the range we
-	 * care about here.
+	 * problem. Note that this includes any block zeroing we did above;
+	 * otherwise those blocks may not be zeroed after a crash.
 	 */
-	if (oldsize != ip->i_d.di_size && newsize > ip->i_d.di_size) {
+	if (newsize > ip->i_d.di_size &&
+	    (oldsize != ip->i_d.di_size || did_zeroing)) {
 		error = filemap_write_and_wait_range(VFS_I(ip)->i_mapping,
 						      ip->i_d.di_size, newsize);
 		if (error)
 			return error;
 	}
 
-	/*
-	 * Wait for all direct I/O to complete.
-	 */
+	/* Now wait for all direct I/O to complete. */
 	inode_dio_wait(inode);
 
 	/*
diff --git a/fs/xfs/xfs_pnfs.c b/fs/xfs/xfs_pnfs.c
index 4b33ef1..365dd57 100644
--- a/fs/xfs/xfs_pnfs.c
+++ b/fs/xfs/xfs_pnfs.c
@@ -300,8 +300,10 @@ xfs_fs_commit_blocks(
 
 	tp = xfs_trans_alloc(mp, XFS_TRANS_SETATTR_NOT_SIZE);
 	error = xfs_trans_reserve(tp, &M_RES(mp)->tr_ichange, 0, 0);
-	if (error)
+	if (error) {
+		xfs_trans_cancel(tp, 0);
 		goto out_drop_iolock;
+	}
 
 	xfs_ilock(ip, XFS_ILOCK_EXCL);
 	xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
diff --git a/fs/xfs/xfs_qm.c b/fs/xfs/xfs_qm.c
index 53cc2aa..fbbb9e6 100644
--- a/fs/xfs/xfs_qm.c
+++ b/fs/xfs/xfs_qm.c
@@ -836,6 +836,11 @@ xfs_qm_reset_dqcounts(
 		 */
 		xfs_dqcheck(mp, ddq, id+j, type, XFS_QMOPT_DQREPAIR,
 			    "xfs_quotacheck");
+		/*
+		 * Reset type in case we are reusing group quota file for
+		 * project quotas or vice versa
+		 */
+		ddq->d_flags = type;
 		ddq->d_bcount = 0;
 		ddq->d_icount = 0;
 		ddq->d_rtbcount = 0;
diff --git a/include/drm/drm_mm.h b/include/drm/drm_mm.h
index a24addf..0de6290 100644
--- a/include/drm/drm_mm.h
+++ b/include/drm/drm_mm.h
@@ -68,8 +68,8 @@ struct drm_mm_node {
 	unsigned scanned_preceeds_hole : 1;
 	unsigned allocated : 1;
 	unsigned long color;
-	unsigned long start;
-	unsigned long size;
+	u64 start;
+	u64 size;
 	struct drm_mm *mm;
 };
 
@@ -82,16 +82,16 @@ struct drm_mm {
 	unsigned int scan_check_range : 1;
 	unsigned scan_alignment;
 	unsigned long scan_color;
-	unsigned long scan_size;
-	unsigned long scan_hit_start;
-	unsigned long scan_hit_end;
+	u64 scan_size;
+	u64 scan_hit_start;
+	u64 scan_hit_end;
 	unsigned scanned_blocks;
-	unsigned long scan_start;
-	unsigned long scan_end;
+	u64 scan_start;
+	u64 scan_end;
 	struct drm_mm_node *prev_scanned_node;
 
 	void (*color_adjust)(struct drm_mm_node *node, unsigned long color,
-			     unsigned long *start, unsigned long *end);
+			     u64 *start, u64 *end);
 };
 
 /**
@@ -124,7 +124,7 @@ static inline bool drm_mm_initialized(struct drm_mm *mm)
 	return mm->hole_stack.next;
 }
 
-static inline unsigned long __drm_mm_hole_node_start(struct drm_mm_node *hole_node)
+static inline u64 __drm_mm_hole_node_start(struct drm_mm_node *hole_node)
 {
 	return hole_node->start + hole_node->size;
 }
@@ -140,13 +140,13 @@ static inline unsigned long __drm_mm_hole_node_start(struct drm_mm_node *hole_no
  * Returns:
  * Start of the subsequent hole.
  */
-static inline unsigned long drm_mm_hole_node_start(struct drm_mm_node *hole_node)
+static inline u64 drm_mm_hole_node_start(struct drm_mm_node *hole_node)
 {
 	BUG_ON(!hole_node->hole_follows);
 	return __drm_mm_hole_node_start(hole_node);
 }
 
-static inline unsigned long __drm_mm_hole_node_end(struct drm_mm_node *hole_node)
+static inline u64 __drm_mm_hole_node_end(struct drm_mm_node *hole_node)
 {
 	return list_entry(hole_node->node_list.next,
 			  struct drm_mm_node, node_list)->start;
@@ -163,7 +163,7 @@ static inline unsigned long __drm_mm_hole_node_end(struct drm_mm_node *hole_node
  * Returns:
  * End of the subsequent hole.
  */
-static inline unsigned long drm_mm_hole_node_end(struct drm_mm_node *hole_node)
+static inline u64 drm_mm_hole_node_end(struct drm_mm_node *hole_node)
 {
 	return __drm_mm_hole_node_end(hole_node);
 }
@@ -222,7 +222,7 @@ int drm_mm_reserve_node(struct drm_mm *mm, struct drm_mm_node *node);
 
 int drm_mm_insert_node_generic(struct drm_mm *mm,
 			       struct drm_mm_node *node,
-			       unsigned long size,
+			       u64 size,
 			       unsigned alignment,
 			       unsigned long color,
 			       enum drm_mm_search_flags sflags,
@@ -245,7 +245,7 @@ int drm_mm_insert_node_generic(struct drm_mm *mm,
  */
 static inline int drm_mm_insert_node(struct drm_mm *mm,
 				     struct drm_mm_node *node,
-				     unsigned long size,
+				     u64 size,
 				     unsigned alignment,
 				     enum drm_mm_search_flags flags)
 {
@@ -255,11 +255,11 @@ static inline int drm_mm_insert_node(struct drm_mm *mm,
 
 int drm_mm_insert_node_in_range_generic(struct drm_mm *mm,
 					struct drm_mm_node *node,
-					unsigned long size,
+					u64 size,
 					unsigned alignment,
 					unsigned long color,
-					unsigned long start,
-					unsigned long end,
+					u64 start,
+					u64 end,
 					enum drm_mm_search_flags sflags,
 					enum drm_mm_allocator_flags aflags);
 /**
@@ -282,10 +282,10 @@ int drm_mm_insert_node_in_range_generic(struct drm_mm *mm,
  */
 static inline int drm_mm_insert_node_in_range(struct drm_mm *mm,
 					      struct drm_mm_node *node,
-					      unsigned long size,
+					      u64 size,
 					      unsigned alignment,
-					      unsigned long start,
-					      unsigned long end,
+					      u64 start,
+					      u64 end,
 					      enum drm_mm_search_flags flags)
 {
 	return drm_mm_insert_node_in_range_generic(mm, node, size, alignment,
@@ -296,21 +296,21 @@ static inline int drm_mm_insert_node_in_range(struct drm_mm *mm,
 void drm_mm_remove_node(struct drm_mm_node *node);
 void drm_mm_replace_node(struct drm_mm_node *old, struct drm_mm_node *new);
 void drm_mm_init(struct drm_mm *mm,
-		 unsigned long start,
-		 unsigned long size);
+		 u64 start,
+		 u64 size);
 void drm_mm_takedown(struct drm_mm *mm);
 bool drm_mm_clean(struct drm_mm *mm);
 
 void drm_mm_init_scan(struct drm_mm *mm,
-		      unsigned long size,
+		      u64 size,
 		      unsigned alignment,
 		      unsigned long color);
 void drm_mm_init_scan_with_range(struct drm_mm *mm,
-				 unsigned long size,
+				 u64 size,
 				 unsigned alignment,
 				 unsigned long color,
-				 unsigned long start,
-				 unsigned long end);
+				 u64 start,
+				 u64 end);
 bool drm_mm_scan_add_block(struct drm_mm_node *node);
 bool drm_mm_scan_remove_block(struct drm_mm_node *node);
 
diff --git a/include/drm/i915_pciids.h b/include/drm/i915_pciids.h
index 180ad0e..d016dc5 100644
--- a/include/drm/i915_pciids.h
+++ b/include/drm/i915_pciids.h
@@ -214,9 +214,9 @@
 	INTEL_VGA_DEVICE((((gt) - 1) << 4) | (id), info)
 
 #define _INTEL_BDW_M_IDS(gt, info) \
-	_INTEL_BDW_M(gt, 0x1602, info), /* ULT */ \
+	_INTEL_BDW_M(gt, 0x1602, info), /* Halo */ \
 	_INTEL_BDW_M(gt, 0x1606, info), /* ULT */ \
-	_INTEL_BDW_M(gt, 0x160B, info), /* Iris */ \
+	_INTEL_BDW_M(gt, 0x160B, info), /* ULT */ \
 	_INTEL_BDW_M(gt, 0x160E, info) /* ULX */
 
 #define _INTEL_BDW_D_IDS(gt, info) \
diff --git a/include/drm/ttm/ttm_bo_api.h b/include/drm/ttm/ttm_bo_api.h
index 0ccf7f2..c768ddf 100644
--- a/include/drm/ttm/ttm_bo_api.h
+++ b/include/drm/ttm/ttm_bo_api.h
@@ -249,7 +249,7 @@ struct ttm_buffer_object {
 	 * either of these locks held.
 	 */
 
-	unsigned long offset;
+	uint64_t offset; /* GPU address space is independent of CPU word size */
 	uint32_t cur_placement;
 
 	struct sg_table *sg;
diff --git a/include/drm/ttm/ttm_bo_driver.h b/include/drm/ttm/ttm_bo_driver.h
index 142d752..813042c 100644
--- a/include/drm/ttm/ttm_bo_driver.h
+++ b/include/drm/ttm/ttm_bo_driver.h
@@ -277,7 +277,7 @@ struct ttm_mem_type_manager {
 	bool has_type;
 	bool use_type;
 	uint32_t flags;
-	unsigned long gpu_offset;
+	uint64_t gpu_offset; /* GPU address space is independent of CPU word size */
 	uint64_t size;
 	uint32_t available_caching;
 	uint32_t default_caching;
diff --git a/include/dt-bindings/interrupt-controller/irq-st.h b/include/dt-bindings/interrupt-controller/irq-st.h
new file mode 100644
index 0000000..4c59ace
--- /dev/null
+++ b/include/dt-bindings/interrupt-controller/irq-st.h
@@ -0,0 +1,30 @@
+/*
+ *  include/linux/irqchip/irq-st.h
+ *
+ *  Copyright (C) 2014 STMicroelectronics – All Rights Reserved
+ *
+ *  Author: Lee Jones <lee.jones@linaro.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef _DT_BINDINGS_INTERRUPT_CONTROLLER_ST_H
+#define _DT_BINDINGS_INTERRUPT_CONTROLLER_ST_H
+
+#define ST_IRQ_SYSCFG_EXT_0		0
+#define ST_IRQ_SYSCFG_EXT_1		1
+#define ST_IRQ_SYSCFG_EXT_2		2
+#define ST_IRQ_SYSCFG_CTI_0		3
+#define ST_IRQ_SYSCFG_CTI_1		4
+#define ST_IRQ_SYSCFG_PMU_0		5
+#define ST_IRQ_SYSCFG_PMU_1		6
+#define ST_IRQ_SYSCFG_pl310_L2		7
+#define ST_IRQ_SYSCFG_DISABLED		0xFFFFFFFF
+
+#define ST_IRQ_SYSCFG_EXT_1_INV		0x1
+#define ST_IRQ_SYSCFG_EXT_2_INV		0x2
+#define ST_IRQ_SYSCFG_EXT_3_INV		0x4
+
+#endif
diff --git a/include/dt-bindings/phy/phy-miphy365x.h b/include/dt-bindings/phy/phy-miphy365x.h
deleted file mode 100644
index 8ef8aba..0000000
--- a/include/dt-bindings/phy/phy-miphy365x.h
+++ /dev/null
@@ -1,14 +0,0 @@
-/*
- * This header provides constants for the phy framework
- * based on the STMicroelectronics MiPHY365x.
- *
- * Author: Lee Jones <lee.jones@linaro.org>
- */
-#ifndef _DT_BINDINGS_PHY_MIPHY
-#define _DT_BINDINGS_PHY_MIPHY
-
-#define MIPHY_TYPE_SATA		1
-#define MIPHY_TYPE_PCIE		2
-#define MIPHY_TYPE_USB		3
-
-#endif /* _DT_BINDINGS_PHY_MIPHY */
diff --git a/include/dt-bindings/pinctrl/am33xx.h b/include/dt-bindings/pinctrl/am33xx.h
index 2fbc804..226f772 100644
--- a/include/dt-bindings/pinctrl/am33xx.h
+++ b/include/dt-bindings/pinctrl/am33xx.h
@@ -13,7 +13,8 @@
 
 #define PULL_DISABLE		(1 << 3)
 #define INPUT_EN		(1 << 5)
-#define SLEWCTRL_FAST		(1 << 6)
+#define SLEWCTRL_SLOW		(1 << 6)
+#define SLEWCTRL_FAST		0
 
 /* update macro depending on INPUT_EN and PULL_ENA */
 #undef PIN_OUTPUT
diff --git a/include/dt-bindings/pinctrl/am43xx.h b/include/dt-bindings/pinctrl/am43xx.h
index 9c2e4f8..5f4d0189 100644
--- a/include/dt-bindings/pinctrl/am43xx.h
+++ b/include/dt-bindings/pinctrl/am43xx.h
@@ -18,7 +18,8 @@
 #define PULL_DISABLE		(1 << 16)
 #define PULL_UP			(1 << 17)
 #define INPUT_EN		(1 << 18)
-#define SLEWCTRL_FAST		(1 << 19)
+#define SLEWCTRL_SLOW		(1 << 19)
+#define SLEWCTRL_FAST		0
 #define DS0_PULL_UP_DOWN_EN	(1 << 27)
 
 #define PIN_OUTPUT		(PULL_DISABLE)
diff --git a/include/kvm/arm_arch_timer.h b/include/kvm/arm_arch_timer.h
index b3f45a5..e596675 100644
--- a/include/kvm/arm_arch_timer.h
+++ b/include/kvm/arm_arch_timer.h
@@ -24,17 +24,14 @@
 #include <linux/workqueue.h>
 
 struct arch_timer_kvm {
-#ifdef CONFIG_KVM_ARM_TIMER
 	/* Is the timer enabled */
 	bool			enabled;
 
 	/* Virtual offset */
 	cycle_t			cntvoff;
-#endif
 };
 
 struct arch_timer_cpu {
-#ifdef CONFIG_KVM_ARM_TIMER
 	/* Registers: control register, timer value */
 	u32				cntv_ctl;	/* Saved/restored */
 	cycle_t				cntv_cval;	/* Saved/restored */
@@ -55,10 +52,8 @@ struct arch_timer_cpu {
 
 	/* Timer IRQ */
 	const struct kvm_irq_level	*irq;
-#endif
 };
 
-#ifdef CONFIG_KVM_ARM_TIMER
 int kvm_timer_hyp_init(void);
 void kvm_timer_enable(struct kvm *kvm);
 void kvm_timer_init(struct kvm *kvm);
@@ -72,30 +67,6 @@ void kvm_timer_vcpu_terminate(struct kvm_vcpu *vcpu);
 u64 kvm_arm_timer_get_reg(struct kvm_vcpu *, u64 regid);
 int kvm_arm_timer_set_reg(struct kvm_vcpu *, u64 regid, u64 value);
 
-#else
-static inline int kvm_timer_hyp_init(void)
-{
-	return 0;
-};
-
-static inline void kvm_timer_enable(struct kvm *kvm) {}
-static inline void kvm_timer_init(struct kvm *kvm) {}
-static inline void kvm_timer_vcpu_reset(struct kvm_vcpu *vcpu,
-					const struct kvm_irq_level *irq) {}
-static inline void kvm_timer_vcpu_init(struct kvm_vcpu *vcpu) {}
-static inline void kvm_timer_flush_hwstate(struct kvm_vcpu *vcpu) {}
-static inline void kvm_timer_sync_hwstate(struct kvm_vcpu *vcpu) {}
-static inline void kvm_timer_vcpu_terminate(struct kvm_vcpu *vcpu) {}
-
-static inline int kvm_arm_timer_set_reg(struct kvm_vcpu *vcpu, u64 regid, u64 value)
-{
-	return 0;
-}
-
-static inline u64 kvm_arm_timer_get_reg(struct kvm_vcpu *vcpu, u64 regid)
-{
-	return 0;
-}
-#endif
+bool kvm_timer_should_fire(struct kvm_vcpu *vcpu);
 
 #endif
diff --git a/include/kvm/arm_vgic.h b/include/kvm/arm_vgic.h
index 7c55dd5..133ea00 100644
--- a/include/kvm/arm_vgic.h
+++ b/include/kvm/arm_vgic.h
@@ -24,6 +24,7 @@
 #include <linux/irqreturn.h>
 #include <linux/spinlock.h>
 #include <linux/types.h>
+#include <kvm/iodev.h>
 
 #define VGIC_NR_IRQS_LEGACY	256
 #define VGIC_NR_SGIS		16
@@ -114,6 +115,7 @@ struct vgic_ops {
 	void	(*sync_lr_elrsr)(struct kvm_vcpu *, int, struct vgic_lr);
 	u64	(*get_elrsr)(const struct kvm_vcpu *vcpu);
 	u64	(*get_eisr)(const struct kvm_vcpu *vcpu);
+	void	(*clear_eisr)(struct kvm_vcpu *vcpu);
 	u32	(*get_interrupt_status)(const struct kvm_vcpu *vcpu);
 	void	(*enable_underflow)(struct kvm_vcpu *vcpu);
 	void	(*disable_underflow)(struct kvm_vcpu *vcpu);
@@ -139,16 +141,21 @@ struct vgic_params {
 };
 
 struct vgic_vm_ops {
-	bool	(*handle_mmio)(struct kvm_vcpu *, struct kvm_run *,
-			       struct kvm_exit_mmio *);
 	bool	(*queue_sgi)(struct kvm_vcpu *, int irq);
 	void	(*add_sgi_source)(struct kvm_vcpu *, int irq, int source);
 	int	(*init_model)(struct kvm *);
 	int	(*map_resources)(struct kvm *, const struct vgic_params *);
 };
 
+struct vgic_io_device {
+	gpa_t addr;
+	int len;
+	const struct vgic_io_range *reg_ranges;
+	struct kvm_vcpu *redist_vcpu;
+	struct kvm_io_device dev;
+};
+
 struct vgic_dist {
-#ifdef CONFIG_KVM_ARM_VGIC
 	spinlock_t		lock;
 	bool			in_kernel;
 	bool			ready;
@@ -196,6 +203,9 @@ struct vgic_dist {
 	/* Level-triggered interrupt queued on VCPU interface */
 	struct vgic_bitmap	irq_queued;
 
+	/* Interrupt was active when unqueue from VCPU interface */
+	struct vgic_bitmap	irq_active;
+
 	/* Interrupt priority. Not used yet. */
 	struct vgic_bytemap	irq_priority;
 
@@ -236,8 +246,12 @@ struct vgic_dist {
 	/* Bitmap indicating which CPU has something pending */
 	unsigned long		*irq_pending_on_cpu;
 
+	/* Bitmap indicating which CPU has active IRQs */
+	unsigned long		*irq_active_on_cpu;
+
 	struct vgic_vm_ops	vm_ops;
-#endif
+	struct vgic_io_device	dist_iodev;
+	struct vgic_io_device	*redist_iodevs;
 };
 
 struct vgic_v2_cpu_if {
@@ -265,13 +279,18 @@ struct vgic_v3_cpu_if {
 };
 
 struct vgic_cpu {
-#ifdef CONFIG_KVM_ARM_VGIC
 	/* per IRQ to LR mapping */
 	u8		*vgic_irq_lr_map;
 
-	/* Pending interrupts on this VCPU */
+	/* Pending/active/both interrupts on this VCPU */
 	DECLARE_BITMAP(	pending_percpu, VGIC_NR_PRIVATE_IRQS);
+	DECLARE_BITMAP(	active_percpu, VGIC_NR_PRIVATE_IRQS);
+	DECLARE_BITMAP(	pend_act_percpu, VGIC_NR_PRIVATE_IRQS);
+
+	/* Pending/active/both shared interrupts, dynamically sized */
 	unsigned long	*pending_shared;
+	unsigned long   *active_shared;
+	unsigned long   *pend_act_shared;
 
 	/* Bitmap of used/free list registers */
 	DECLARE_BITMAP(	lr_used, VGIC_V2_MAX_LRS);
@@ -284,7 +303,6 @@ struct vgic_cpu {
 		struct vgic_v2_cpu_if	vgic_v2;
 		struct vgic_v3_cpu_if	vgic_v3;
 	};
-#endif
 };
 
 #define LR_EMPTY	0xff
@@ -294,10 +312,7 @@ struct vgic_cpu {
 
 struct kvm;
 struct kvm_vcpu;
-struct kvm_run;
-struct kvm_exit_mmio;
 
-#ifdef CONFIG_KVM_ARM_VGIC
 int kvm_vgic_addr(struct kvm *kvm, unsigned long type, u64 *addr, bool write);
 int kvm_vgic_hyp_init(void);
 int kvm_vgic_map_resources(struct kvm *kvm);
@@ -311,8 +326,7 @@ int kvm_vgic_inject_irq(struct kvm *kvm, int cpuid, unsigned int irq_num,
 			bool level);
 void vgic_v3_dispatch_sgi(struct kvm_vcpu *vcpu, u64 reg);
 int kvm_vgic_vcpu_pending_irq(struct kvm_vcpu *vcpu);
-bool vgic_handle_mmio(struct kvm_vcpu *vcpu, struct kvm_run *run,
-		      struct kvm_exit_mmio *mmio);
+int kvm_vgic_vcpu_active_irq(struct kvm_vcpu *vcpu);
 
 #define irqchip_in_kernel(k)	(!!((k)->arch.vgic.in_kernel))
 #define vgic_initialized(k)	(!!((k)->arch.vgic.nr_cpus))
@@ -334,84 +348,4 @@ static inline int vgic_v3_probe(struct device_node *vgic_node,
 }
 #endif
 
-#else
-static inline int kvm_vgic_hyp_init(void)
-{
-	return 0;
-}
-
-static inline int kvm_vgic_set_addr(struct kvm *kvm, unsigned long type, u64 addr)
-{
-	return 0;
-}
-
-static inline int kvm_vgic_addr(struct kvm *kvm, unsigned long type, u64 *addr, bool write)
-{
-	return -ENXIO;
-}
-
-static inline int kvm_vgic_map_resources(struct kvm *kvm)
-{
-	return 0;
-}
-
-static inline int kvm_vgic_create(struct kvm *kvm, u32 type)
-{
-	return 0;
-}
-
-static inline void kvm_vgic_destroy(struct kvm *kvm)
-{
-}
-
-static inline void kvm_vgic_vcpu_destroy(struct kvm_vcpu *vcpu)
-{
-}
-
-static inline int kvm_vgic_vcpu_init(struct kvm_vcpu *vcpu)
-{
-	return 0;
-}
-
-static inline void kvm_vgic_flush_hwstate(struct kvm_vcpu *vcpu) {}
-static inline void kvm_vgic_sync_hwstate(struct kvm_vcpu *vcpu) {}
-
-static inline int kvm_vgic_inject_irq(struct kvm *kvm, int cpuid,
-				      unsigned int irq_num, bool level)
-{
-	return 0;
-}
-
-static inline int kvm_vgic_vcpu_pending_irq(struct kvm_vcpu *vcpu)
-{
-	return 0;
-}
-
-static inline bool vgic_handle_mmio(struct kvm_vcpu *vcpu, struct kvm_run *run,
-				    struct kvm_exit_mmio *mmio)
-{
-	return false;
-}
-
-static inline int irqchip_in_kernel(struct kvm *kvm)
-{
-	return 0;
-}
-
-static inline bool vgic_initialized(struct kvm *kvm)
-{
-	return true;
-}
-
-static inline bool vgic_ready(struct kvm *kvm)
-{
-	return true;
-}
-
-static inline int kvm_vgic_get_max_vcpus(void)
-{
-	return KVM_MAX_VCPUS;
-}
-#endif
-
 #endif
diff --git a/virt/kvm/iodev.h b/include/kvm/iodev.h
index 12fd3ca..a6d208b 100644
--- a/virt/kvm/iodev.h
+++ b/include/kvm/iodev.h
@@ -9,17 +9,17 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 #ifndef __KVM_IODEV_H__
 #define __KVM_IODEV_H__
 
 #include <linux/kvm_types.h>
-#include <asm/errno.h>
+#include <linux/errno.h>
 
 struct kvm_io_device;
+struct kvm_vcpu;
 
 /**
  * kvm_io_device_ops are called under kvm slots_lock.
@@ -27,11 +27,13 @@ struct kvm_io_device;
  * or non-zero to have it passed to the next device.
  **/
 struct kvm_io_device_ops {
-	int (*read)(struct kvm_io_device *this,
+	int (*read)(struct kvm_vcpu *vcpu,
+		    struct kvm_io_device *this,
 		    gpa_t addr,
 		    int len,
 		    void *val);
-	int (*write)(struct kvm_io_device *this,
+	int (*write)(struct kvm_vcpu *vcpu,
+		     struct kvm_io_device *this,
 		     gpa_t addr,
 		     int len,
 		     const void *val);
@@ -49,16 +51,20 @@ static inline void kvm_iodevice_init(struct kvm_io_device *dev,
 	dev->ops = ops;
 }
 
-static inline int kvm_iodevice_read(struct kvm_io_device *dev,
-				    gpa_t addr, int l, void *v)
+static inline int kvm_iodevice_read(struct kvm_vcpu *vcpu,
+				    struct kvm_io_device *dev, gpa_t addr,
+				    int l, void *v)
 {
-	return dev->ops->read ? dev->ops->read(dev, addr, l, v) : -EOPNOTSUPP;
+	return dev->ops->read ? dev->ops->read(vcpu, dev, addr, l, v)
+				: -EOPNOTSUPP;
 }
 
-static inline int kvm_iodevice_write(struct kvm_io_device *dev,
-				     gpa_t addr, int l, const void *v)
+static inline int kvm_iodevice_write(struct kvm_vcpu *vcpu,
+				     struct kvm_io_device *dev, gpa_t addr,
+				     int l, const void *v)
 {
-	return dev->ops->write ? dev->ops->write(dev, addr, l, v) : -EOPNOTSUPP;
+	return dev->ops->write ? dev->ops->write(vcpu, dev, addr, l, v)
+				 : -EOPNOTSUPP;
 }
 
 static inline void kvm_iodevice_destructor(struct kvm_io_device *dev)
diff --git a/include/linux/ata.h b/include/linux/ata.h
index 1648026..b666b77 100644
--- a/include/linux/ata.h
+++ b/include/linux/ata.h
@@ -94,6 +94,8 @@ enum {
 	ATA_ID_SECTOR_SIZE	= 106,
 	ATA_ID_WWN		= 108,
 	ATA_ID_LOGICAL_SECTOR_SIZE	= 117,	/* and 118 */
+	ATA_ID_COMMAND_SET_3	= 119,
+	ATA_ID_COMMAND_SET_4	= 120,
 	ATA_ID_LAST_LUN		= 126,
 	ATA_ID_DLF		= 128,
 	ATA_ID_CSFO		= 129,
@@ -177,7 +179,7 @@ enum {
 	ATA_DSC			= (1 << 4),	/* drive seek complete */
 	ATA_DRQ			= (1 << 3),	/* data request i/o */
 	ATA_CORR		= (1 << 2),	/* corrected data error */
-	ATA_IDX			= (1 << 1),	/* index */
+	ATA_SENSE		= (1 << 1),	/* sense code available */
 	ATA_ERR			= (1 << 0),	/* have an error */
 	ATA_SRST		= (1 << 2),	/* software reset */
 	ATA_ICRC		= (1 << 7),	/* interface CRC error */
@@ -382,6 +384,8 @@ enum {
 	SATA_SSP		= 0x06,	/* Software Settings Preservation */
 	SATA_DEVSLP		= 0x09,	/* Device Sleep */
 
+	SETFEATURE_SENSE_DATA = 0xC3, /* Sense Data Reporting feature */
+
 	/* feature values for SET_MAX */
 	ATA_SET_MAX_ADDR	= 0x00,
 	ATA_SET_MAX_PASSWD	= 0x01,
@@ -525,6 +529,8 @@ struct ata_bmdma_prd {
 #define ata_id_cdb_intr(id)	(((id)[ATA_ID_CONFIG] & 0x60) == 0x20)
 #define ata_id_has_da(id)	((id)[ATA_ID_SATA_CAPABILITY_2] & (1 << 4))
 #define ata_id_has_devslp(id)	((id)[ATA_ID_FEATURE_SUPP] & (1 << 8))
+#define ata_id_has_ncq_autosense(id) \
+				((id)[ATA_ID_FEATURE_SUPP] & (1 << 7))
 
 static inline bool ata_id_has_hipm(const u16 *id)
 {
@@ -696,6 +702,27 @@ static inline bool ata_id_wcache_enabled(const u16 *id)
 	return id[ATA_ID_CFS_ENABLE_1] & (1 << 5);
 }
 
+static inline bool ata_id_has_read_log_dma_ext(const u16 *id)
+{
+	if (!(id[ATA_ID_CFS_ENABLE_2] & (1 << 15)))
+		return false;
+	return id[ATA_ID_COMMAND_SET_3] & (1 << 3);
+}
+
+static inline bool ata_id_has_sense_reporting(const u16 *id)
+{
+	if (!(id[ATA_ID_CFS_ENABLE_2] & (1 << 15)))
+		return false;
+	return id[ATA_ID_COMMAND_SET_3] & (1 << 6);
+}
+
+static inline bool ata_id_sense_reporting_enabled(const u16 *id)
+{
+	if (!(id[ATA_ID_CFS_ENABLE_2] & (1 << 15)))
+		return false;
+	return id[ATA_ID_COMMAND_SET_4] & (1 << 6);
+}
+
 /**
  *	ata_id_major_version	-	get ATA level of drive
  *	@id: Identify data
diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h
index c294e3e..a1b25e3 100644
--- a/include/linux/blk_types.h
+++ b/include/linux/blk_types.h
@@ -181,7 +181,9 @@ enum rq_flag_bits {
 	__REQ_ELVPRIV,		/* elevator private data attached */
 	__REQ_FAILED,		/* set if the request failed */
 	__REQ_QUIET,		/* don't worry about errors */
-	__REQ_PREEMPT,		/* set for "ide_preempt" requests */
+	__REQ_PREEMPT,		/* set for "ide_preempt" requests and also
+				   for requests for which the SCSI "quiesce"
+				   state must be ignored. */
 	__REQ_ALLOCED,		/* request came from our alloc pool */
 	__REQ_COPY_USER,	/* contains copies of user pages */
 	__REQ_FLUSH_SEQ,	/* request for flush sequence */
diff --git a/include/linux/clk.h b/include/linux/clk.h
index 8381bbf..68c16a6 100644
--- a/include/linux/clk.h
+++ b/include/linux/clk.h
@@ -125,6 +125,19 @@ int clk_set_phase(struct clk *clk, int degrees);
  */
 int clk_get_phase(struct clk *clk);
 
+/**
+ * clk_is_match - check if two clk's point to the same hardware clock
+ * @p: clk compared against q
+ * @q: clk compared against p
+ *
+ * Returns true if the two struct clk pointers both point to the same hardware
+ * clock node. Put differently, returns true if struct clk *p and struct clk *q
+ * share the same struct clk_core object.
+ *
+ * Returns false otherwise. Note that two NULL clks are treated as matching.
+ */
+bool clk_is_match(const struct clk *p, const struct clk *q);
+
 #else
 
 static inline long clk_get_accuracy(struct clk *clk)
@@ -142,6 +155,11 @@ static inline long clk_get_phase(struct clk *clk)
 	return -ENOTSUPP;
 }
 
+static inline bool clk_is_match(const struct clk *p, const struct clk *q)
+{
+	return p == q;
+}
+
 #endif
 
 /**
diff --git a/include/linux/clockchips.h b/include/linux/clockchips.h
index 2e4cb67..96c280b 100644
--- a/include/linux/clockchips.h
+++ b/include/linux/clockchips.h
@@ -8,33 +8,19 @@
 #ifndef _LINUX_CLOCKCHIPS_H
 #define _LINUX_CLOCKCHIPS_H
 
-/* Clock event notification values */
-enum clock_event_nofitiers {
-	CLOCK_EVT_NOTIFY_ADD,
-	CLOCK_EVT_NOTIFY_BROADCAST_ON,
-	CLOCK_EVT_NOTIFY_BROADCAST_OFF,
-	CLOCK_EVT_NOTIFY_BROADCAST_FORCE,
-	CLOCK_EVT_NOTIFY_BROADCAST_ENTER,
-	CLOCK_EVT_NOTIFY_BROADCAST_EXIT,
-	CLOCK_EVT_NOTIFY_SUSPEND,
-	CLOCK_EVT_NOTIFY_RESUME,
-	CLOCK_EVT_NOTIFY_CPU_DYING,
-	CLOCK_EVT_NOTIFY_CPU_DEAD,
-};
-
-#ifdef CONFIG_GENERIC_CLOCKEVENTS_BUILD
+#ifdef CONFIG_GENERIC_CLOCKEVENTS
 
-#include <linux/clocksource.h>
-#include <linux/cpumask.h>
-#include <linux/ktime.h>
-#include <linux/notifier.h>
+# include <linux/clocksource.h>
+# include <linux/cpumask.h>
+# include <linux/ktime.h>
+# include <linux/notifier.h>
 
 struct clock_event_device;
 struct module;
 
-/* Clock event mode commands */
+/* Clock event mode commands for legacy ->set_mode(): OBSOLETE */
 enum clock_event_mode {
-	CLOCK_EVT_MODE_UNUSED = 0,
+	CLOCK_EVT_MODE_UNUSED,
 	CLOCK_EVT_MODE_SHUTDOWN,
 	CLOCK_EVT_MODE_PERIODIC,
 	CLOCK_EVT_MODE_ONESHOT,
@@ -42,30 +28,49 @@ enum clock_event_mode {
 };
 
 /*
+ * Possible states of a clock event device.
+ *
+ * DETACHED:	Device is not used by clockevents core. Initial state or can be
+ *		reached from SHUTDOWN.
+ * SHUTDOWN:	Device is powered-off. Can be reached from PERIODIC or ONESHOT.
+ * PERIODIC:	Device is programmed to generate events periodically. Can be
+ *		reached from DETACHED or SHUTDOWN.
+ * ONESHOT:	Device is programmed to generate event only once. Can be reached
+ *		from DETACHED or SHUTDOWN.
+ */
+enum clock_event_state {
+	CLOCK_EVT_STATE_DETACHED,
+	CLOCK_EVT_STATE_SHUTDOWN,
+	CLOCK_EVT_STATE_PERIODIC,
+	CLOCK_EVT_STATE_ONESHOT,
+};
+
+/*
  * Clock event features
  */
-#define CLOCK_EVT_FEAT_PERIODIC		0x000001
-#define CLOCK_EVT_FEAT_ONESHOT		0x000002
-#define CLOCK_EVT_FEAT_KTIME		0x000004
+# define CLOCK_EVT_FEAT_PERIODIC	0x000001
+# define CLOCK_EVT_FEAT_ONESHOT		0x000002
+# define CLOCK_EVT_FEAT_KTIME		0x000004
+
 /*
- * x86(64) specific misfeatures:
+ * x86(64) specific (mis)features:
  *
  * - Clockevent source stops in C3 State and needs broadcast support.
  * - Local APIC timer is used as a dummy device.
  */
-#define CLOCK_EVT_FEAT_C3STOP		0x000008
-#define CLOCK_EVT_FEAT_DUMMY		0x000010
+# define CLOCK_EVT_FEAT_C3STOP		0x000008
+# define CLOCK_EVT_FEAT_DUMMY		0x000010
 
 /*
  * Core shall set the interrupt affinity dynamically in broadcast mode
  */
-#define CLOCK_EVT_FEAT_DYNIRQ		0x000020
-#define CLOCK_EVT_FEAT_PERCPU		0x000040
+# define CLOCK_EVT_FEAT_DYNIRQ		0x000020
+# define CLOCK_EVT_FEAT_PERCPU		0x000040
 
 /*
  * Clockevent device is based on a hrtimer for broadcast
  */
-#define CLOCK_EVT_FEAT_HRTIMER		0x000080
+# define CLOCK_EVT_FEAT_HRTIMER		0x000080
 
 /**
  * struct clock_event_device - clock event device descriptor
@@ -78,10 +83,15 @@ enum clock_event_mode {
  * @min_delta_ns:	minimum delta value in ns
  * @mult:		nanosecond to cycles multiplier
  * @shift:		nanoseconds to cycles divisor (power of two)
- * @mode:		operating mode assigned by the management code
+ * @mode:		operating mode, relevant only to ->set_mode(), OBSOLETE
+ * @state:		current state of the device, assigned by the core code
  * @features:		features
  * @retries:		number of forced programming retries
- * @set_mode:		set mode function
+ * @set_mode:		legacy set mode function, only for modes <= CLOCK_EVT_MODE_RESUME.
+ * @set_state_periodic:	switch state to periodic, if !set_mode
+ * @set_state_oneshot:	switch state to oneshot, if !set_mode
+ * @set_state_shutdown:	switch state to shutdown, if !set_mode
+ * @tick_resume:	resume clkevt device, if !set_mode
  * @broadcast:		function to broadcast events
  * @min_delta_ticks:	minimum delta value in ticks stored for reconfiguration
  * @max_delta_ticks:	maximum delta value in ticks stored for reconfiguration
@@ -95,22 +105,31 @@ enum clock_event_mode {
  */
 struct clock_event_device {
 	void			(*event_handler)(struct clock_event_device *);
-	int			(*set_next_event)(unsigned long evt,
-						  struct clock_event_device *);
-	int			(*set_next_ktime)(ktime_t expires,
-						  struct clock_event_device *);
+	int			(*set_next_event)(unsigned long evt, struct clock_event_device *);
+	int			(*set_next_ktime)(ktime_t expires, struct clock_event_device *);
 	ktime_t			next_event;
 	u64			max_delta_ns;
 	u64			min_delta_ns;
 	u32			mult;
 	u32			shift;
 	enum clock_event_mode	mode;
+	enum clock_event_state	state;
 	unsigned int		features;
 	unsigned long		retries;
 
+	/*
+	 * State transition callback(s): Only one of the two groups should be
+	 * defined:
+	 * - set_mode(), only for modes <= CLOCK_EVT_MODE_RESUME.
+	 * - set_state_{shutdown|periodic|oneshot}(), tick_resume().
+	 */
+	void			(*set_mode)(enum clock_event_mode mode, struct clock_event_device *);
+	int			(*set_state_periodic)(struct clock_event_device *);
+	int			(*set_state_oneshot)(struct clock_event_device *);
+	int			(*set_state_shutdown)(struct clock_event_device *);
+	int			(*tick_resume)(struct clock_event_device *);
+
 	void			(*broadcast)(const struct cpumask *mask);
-	void			(*set_mode)(enum clock_event_mode mode,
-					    struct clock_event_device *);
 	void			(*suspend)(struct clock_event_device *);
 	void			(*resume)(struct clock_event_device *);
 	unsigned long		min_delta_ticks;
@@ -136,18 +155,18 @@ struct clock_event_device {
  *
  * factor = (clock_ticks << shift) / nanoseconds
  */
-static inline unsigned long div_sc(unsigned long ticks, unsigned long nsec,
-				   int shift)
+static inline unsigned long
+div_sc(unsigned long ticks, unsigned long nsec, int shift)
 {
-	uint64_t tmp = ((uint64_t)ticks) << shift;
+	u64 tmp = ((u64)ticks) << shift;
 
 	do_div(tmp, nsec);
+
 	return (unsigned long) tmp;
 }
 
 /* Clock event layer functions */
-extern u64 clockevent_delta2ns(unsigned long latch,
-			       struct clock_event_device *evt);
+extern u64 clockevent_delta2ns(unsigned long latch, struct clock_event_device *evt);
 extern void clockevents_register_device(struct clock_event_device *dev);
 extern int clockevents_unbind_device(struct clock_event_device *ced, int cpu);
 
@@ -158,57 +177,42 @@ extern void clockevents_config_and_register(struct clock_event_device *dev,
 
 extern int clockevents_update_freq(struct clock_event_device *ce, u32 freq);
 
-extern void clockevents_exchange_device(struct clock_event_device *old,
-					struct clock_event_device *new);
-extern void clockevents_set_mode(struct clock_event_device *dev,
-				 enum clock_event_mode mode);
-extern int clockevents_program_event(struct clock_event_device *dev,
-				     ktime_t expires, bool force);
-
-extern void clockevents_handle_noop(struct clock_event_device *dev);
-
 static inline void
 clockevents_calc_mult_shift(struct clock_event_device *ce, u32 freq, u32 minsec)
 {
-	return clocks_calc_mult_shift(&ce->mult, &ce->shift, NSEC_PER_SEC,
-				      freq, minsec);
+	return clocks_calc_mult_shift(&ce->mult, &ce->shift, NSEC_PER_SEC, freq, minsec);
 }
 
 extern void clockevents_suspend(void);
 extern void clockevents_resume(void);
 
-#ifdef CONFIG_GENERIC_CLOCKEVENTS_BROADCAST
-#ifdef CONFIG_ARCH_HAS_TICK_BROADCAST
+# ifdef CONFIG_GENERIC_CLOCKEVENTS_BROADCAST
+#  ifdef CONFIG_ARCH_HAS_TICK_BROADCAST
 extern void tick_broadcast(const struct cpumask *mask);
-#else
-#define tick_broadcast	NULL
-#endif
+#  else
+#   define tick_broadcast	NULL
+#  endif
 extern int tick_receive_broadcast(void);
-#endif
+# endif
 
-#if defined(CONFIG_GENERIC_CLOCKEVENTS_BROADCAST) && defined(CONFIG_TICK_ONESHOT)
+# if defined(CONFIG_GENERIC_CLOCKEVENTS_BROADCAST) && defined(CONFIG_TICK_ONESHOT)
 extern void tick_setup_hrtimer_broadcast(void);
 extern int tick_check_broadcast_expired(void);
-#else
+# else
 static inline int tick_check_broadcast_expired(void) { return 0; }
-static inline void tick_setup_hrtimer_broadcast(void) {};
-#endif
+static inline void tick_setup_hrtimer_broadcast(void) { }
+# endif
 
-#ifdef CONFIG_GENERIC_CLOCKEVENTS
 extern int clockevents_notify(unsigned long reason, void *arg);
-#else
-static inline int clockevents_notify(unsigned long reason, void *arg) { return 0; }
-#endif
-
-#else /* CONFIG_GENERIC_CLOCKEVENTS_BUILD */
 
-static inline void clockevents_suspend(void) {}
-static inline void clockevents_resume(void) {}
+#else /* !CONFIG_GENERIC_CLOCKEVENTS: */
 
+static inline void clockevents_suspend(void) { }
+static inline void clockevents_resume(void) { }
 static inline int clockevents_notify(unsigned long reason, void *arg) { return 0; }
 static inline int tick_check_broadcast_expired(void) { return 0; }
-static inline void tick_setup_hrtimer_broadcast(void) {};
+static inline void tick_setup_hrtimer_broadcast(void) { }
 
-#endif
+#endif /* !CONFIG_GENERIC_CLOCKEVENTS */
 
-#endif
+#endif /* _LINUX_CLOCKCHIPS_H */
diff --git a/include/linux/clocksource.h b/include/linux/clocksource.h
index 9c78d15..1355098 100644
--- a/include/linux/clocksource.h
+++ b/include/linux/clocksource.h
@@ -56,6 +56,7 @@ struct module;
  * @shift:		cycle to nanosecond divisor (power of two)
  * @max_idle_ns:	max idle time permitted by the clocksource (nsecs)
  * @maxadj:		maximum adjustment value to mult (~11%)
+ * @max_cycles:		maximum safe cycle value which won't overflow on multiplication
  * @flags:		flags describing special properties
  * @archdata:		arch-specific data
  * @suspend:		suspend function for the clocksource, if necessary
@@ -76,7 +77,7 @@ struct clocksource {
 #ifdef CONFIG_ARCH_CLOCKSOURCE_DATA
 	struct arch_clocksource_data archdata;
 #endif
-
+	u64 max_cycles;
 	const char *name;
 	struct list_head list;
 	int rating;
@@ -178,7 +179,6 @@ static inline s64 clocksource_cyc2ns(cycle_t cycles, u32 mult, u32 shift)
 }
 
 
-extern int clocksource_register(struct clocksource*);
 extern int clocksource_unregister(struct clocksource*);
 extern void clocksource_touch_watchdog(void);
 extern struct clocksource* clocksource_get_next(void);
@@ -189,7 +189,7 @@ extern struct clocksource * __init clocksource_default_clock(void);
 extern void clocksource_mark_unstable(struct clocksource *cs);
 
 extern u64
-clocks_calc_max_nsecs(u32 mult, u32 shift, u32 maxadj, u64 mask);
+clocks_calc_max_nsecs(u32 mult, u32 shift, u32 maxadj, u64 mask, u64 *max_cycles);
 extern void
 clocks_calc_mult_shift(u32 *mult, u32 *shift, u32 from, u32 to, u32 minsec);
 
@@ -200,7 +200,16 @@ clocks_calc_mult_shift(u32 *mult, u32 *shift, u32 from, u32 to, u32 minsec);
 extern int
 __clocksource_register_scale(struct clocksource *cs, u32 scale, u32 freq);
 extern void
-__clocksource_updatefreq_scale(struct clocksource *cs, u32 scale, u32 freq);
+__clocksource_update_freq_scale(struct clocksource *cs, u32 scale, u32 freq);
+
+/*
+ * Don't call this unless you are a default clocksource
+ * (AKA: jiffies) and absolutely have to.
+ */
+static inline int __clocksource_register(struct clocksource *cs)
+{
+	return __clocksource_register_scale(cs, 1, 0);
+}
 
 static inline int clocksource_register_hz(struct clocksource *cs, u32 hz)
 {
@@ -212,14 +221,14 @@ static inline int clocksource_register_khz(struct clocksource *cs, u32 khz)
 	return __clocksource_register_scale(cs, 1000, khz);
 }
 
-static inline void __clocksource_updatefreq_hz(struct clocksource *cs, u32 hz)
+static inline void __clocksource_update_freq_hz(struct clocksource *cs, u32 hz)
 {
-	__clocksource_updatefreq_scale(cs, 1, hz);
+	__clocksource_update_freq_scale(cs, 1, hz);
 }
 
-static inline void __clocksource_updatefreq_khz(struct clocksource *cs, u32 khz)
+static inline void __clocksource_update_freq_khz(struct clocksource *cs, u32 khz)
 {
-	__clocksource_updatefreq_scale(cs, 1000, khz);
+	__clocksource_update_freq_scale(cs, 1000, khz);
 }
 
 
diff --git a/include/linux/compiler.h b/include/linux/compiler.h
index 1b45e4a..0e41ca0 100644
--- a/include/linux/compiler.h
+++ b/include/linux/compiler.h
@@ -192,29 +192,16 @@ void ftrace_likely_update(struct ftrace_branch_data *f, int val, int expect);
 
 #include <uapi/linux/types.h>
 
-static __always_inline void data_access_exceeds_word_size(void)
-#ifdef __compiletime_warning
-__compiletime_warning("data access exceeds word size and won't be atomic")
-#endif
-;
-
-static __always_inline void data_access_exceeds_word_size(void)
-{
-}
-
 static __always_inline void __read_once_size(const volatile void *p, void *res, int size)
 {
 	switch (size) {
 	case 1: *(__u8 *)res = *(volatile __u8 *)p; break;
 	case 2: *(__u16 *)res = *(volatile __u16 *)p; break;
 	case 4: *(__u32 *)res = *(volatile __u32 *)p; break;
-#ifdef CONFIG_64BIT
 	case 8: *(__u64 *)res = *(volatile __u64 *)p; break;
-#endif
 	default:
 		barrier();
 		__builtin_memcpy((void *)res, (const void *)p, size);
-		data_access_exceeds_word_size();
 		barrier();
 	}
 }
@@ -225,13 +212,10 @@ static __always_inline void __write_once_size(volatile void *p, void *res, int s
 	case 1: *(volatile __u8 *)p = *(__u8 *)res; break;
 	case 2: *(volatile __u16 *)p = *(__u16 *)res; break;
 	case 4: *(volatile __u32 *)p = *(__u32 *)res; break;
-#ifdef CONFIG_64BIT
 	case 8: *(volatile __u64 *)p = *(__u64 *)res; break;
-#endif
 	default:
 		barrier();
 		__builtin_memcpy((void *)p, (const void *)res, size);
-		data_access_exceeds_word_size();
 		barrier();
 	}
 }
diff --git a/include/linux/cpuidle.h b/include/linux/cpuidle.h
index f551a92..9c5e892 100644
--- a/include/linux/cpuidle.h
+++ b/include/linux/cpuidle.h
@@ -77,7 +77,6 @@ struct cpuidle_device {
 	unsigned int		cpu;
 
 	int			last_residency;
-	int			state_count;
 	struct cpuidle_state_usage	states_usage[CPUIDLE_STATE_MAX];
 	struct cpuidle_state_kobj *kobjs[CPUIDLE_STATE_MAX];
 	struct cpuidle_driver_kobj *kobj_driver;
@@ -126,6 +125,8 @@ struct cpuidle_driver {
 
 #ifdef CONFIG_CPU_IDLE
 extern void disable_cpuidle(void);
+extern bool cpuidle_not_available(struct cpuidle_driver *drv,
+				  struct cpuidle_device *dev);
 
 extern int cpuidle_select(struct cpuidle_driver *drv,
 			  struct cpuidle_device *dev);
@@ -150,11 +151,17 @@ extern void cpuidle_resume(void);
 extern int cpuidle_enable_device(struct cpuidle_device *dev);
 extern void cpuidle_disable_device(struct cpuidle_device *dev);
 extern int cpuidle_play_dead(void);
-extern void cpuidle_enter_freeze(void);
+extern int cpuidle_find_deepest_state(struct cpuidle_driver *drv,
+				      struct cpuidle_device *dev);
+extern int cpuidle_enter_freeze(struct cpuidle_driver *drv,
+				struct cpuidle_device *dev);
 
 extern struct cpuidle_driver *cpuidle_get_cpu_driver(struct cpuidle_device *dev);
 #else
 static inline void disable_cpuidle(void) { }
+static inline bool cpuidle_not_available(struct cpuidle_driver *drv,
+					 struct cpuidle_device *dev)
+{return true; }
 static inline int cpuidle_select(struct cpuidle_driver *drv,
 				 struct cpuidle_device *dev)
 {return -ENODEV; }
@@ -183,7 +190,12 @@ static inline int cpuidle_enable_device(struct cpuidle_device *dev)
 {return -ENODEV; }
 static inline void cpuidle_disable_device(struct cpuidle_device *dev) { }
 static inline int cpuidle_play_dead(void) {return -ENODEV; }
-static inline void cpuidle_enter_freeze(void) { }
+static inline int cpuidle_find_deepest_state(struct cpuidle_driver *drv,
+					     struct cpuidle_device *dev)
+{return -ENODEV; }
+static inline int cpuidle_enter_freeze(struct cpuidle_driver *drv,
+				       struct cpuidle_device *dev)
+{return -ENODEV; }
 static inline struct cpuidle_driver *cpuidle_get_cpu_driver(
 	struct cpuidle_device *dev) {return NULL; }
 #endif
diff --git a/include/linux/device-mapper.h b/include/linux/device-mapper.h
index 2646aed..fd23978 100644
--- a/include/linux/device-mapper.h
+++ b/include/linux/device-mapper.h
@@ -375,6 +375,7 @@ int dm_create(int minor, struct mapped_device **md);
  */
 struct mapped_device *dm_get_md(dev_t dev);
 void dm_get(struct mapped_device *md);
+int dm_hold(struct mapped_device *md);
 void dm_put(struct mapped_device *md);
 
 /*
diff --git a/include/linux/device.h b/include/linux/device.h
index 0eb8ee2..f3f2c7e 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -916,6 +916,13 @@ static inline void device_lock_assert(struct device *dev)
 	lockdep_assert_held(&dev->mutex);
 }
 
+static inline struct device_node *dev_of_node(struct device *dev)
+{
+	if (!IS_ENABLED(CONFIG_OF))
+		return NULL;
+	return dev->of_node;
+}
+
 void driver_init(void);
 
 /*
diff --git a/include/linux/dmapool.h b/include/linux/dmapool.h
index 022e34f..52456aa 100644
--- a/include/linux/dmapool.h
+++ b/include/linux/dmapool.h
@@ -14,6 +14,8 @@
 #include <asm/io.h>
 #include <asm/scatterlist.h>
 
+struct device;
+
 struct dma_pool *dma_pool_create(const char *name, struct device *dev, 
 			size_t size, size_t align, size_t allocation);
 
diff --git a/include/linux/efi.h b/include/linux/efi.h
index cf7e431..af5be03 100644
--- a/include/linux/efi.h
+++ b/include/linux/efi.h
@@ -942,6 +942,7 @@ extern int __init efi_setup_pcdp_console(char *);
 #define EFI_64BIT		5	/* Is the firmware 64-bit? */
 #define EFI_PARAVIRT		6	/* Access is via a paravirt interface */
 #define EFI_ARCH_1		7	/* First arch-specific bit */
+#define EFI_DBG			8	/* Print additional debug info at runtime */
 
 #ifdef CONFIG_EFI
 /*
diff --git a/include/linux/fs.h b/include/linux/fs.h
index b4d71b5..52cc449 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -604,6 +604,7 @@ struct inode {
 	struct mutex		i_mutex;
 
 	unsigned long		dirtied_when;	/* jiffies of first dirtying */
+	unsigned long		dirtied_time_when;
 
 	struct hlist_node	i_hash;
 	struct list_head	i_wb_list;	/* backing dev IO list */
@@ -1548,7 +1549,7 @@ struct file_operations {
 	long (*unlocked_ioctl) (struct file *, unsigned int, unsigned long);
 	long (*compat_ioctl) (struct file *, unsigned int, unsigned long);
 	int (*mmap) (struct file *, struct vm_area_struct *);
-	void (*mremap)(struct file *, struct vm_area_struct *);
+	int (*mremap)(struct file *, struct vm_area_struct *);
 	int (*open) (struct inode *, struct file *);
 	int (*flush) (struct file *, fl_owner_t id);
 	int (*release) (struct inode *, struct file *);
diff --git a/include/linux/hardirq.h b/include/linux/hardirq.h
index cba442e..f4af034 100644
--- a/include/linux/hardirq.h
+++ b/include/linux/hardirq.h
@@ -9,7 +9,7 @@
 
 
 extern void synchronize_irq(unsigned int irq);
-extern void synchronize_hardirq(unsigned int irq);
+extern bool synchronize_hardirq(unsigned int irq);
 
 #if defined(CONFIG_TINY_RCU)
 
diff --git a/include/linux/hid.h b/include/linux/hid.h
index 0167e0e..176b436 100644
--- a/include/linux/hid.h
+++ b/include/linux/hid.h
@@ -516,10 +516,10 @@ struct hid_device {							/* device report descriptor */
 #ifdef CONFIG_HID_BATTERY_STRENGTH
 	/*
 	 * Power supply information for HID devices which report
-	 * battery strength. power_supply is registered iff
-	 * battery.name is non-NULL.
+	 * battery strength. power_supply was successfully registered if
+	 * battery is non-NULL.
 	 */
-	struct power_supply battery;
+	struct power_supply *battery;
 	__s32 battery_min;
 	__s32 battery_max;
 	__s32 battery_report_type;
diff --git a/include/linux/iio/buffer.h b/include/linux/iio/buffer.h
index b65850a..eb8622b 100644
--- a/include/linux/iio/buffer.h
+++ b/include/linux/iio/buffer.h
@@ -21,8 +21,8 @@ struct iio_buffer;
  * struct iio_buffer_access_funcs - access functions for buffers.
  * @store_to:		actually store stuff to the buffer
  * @read_first_n:	try to get a specified number of bytes (must exist)
- * @data_available:	indicates whether data for reading from the buffer is
- *			available.
+ * @data_available:	indicates how much data is available for reading from
+ *			the buffer.
  * @request_update:	if a parameter change has been marked, update underlying
  *			storage.
  * @set_bytes_per_datum:set number of bytes per datum
@@ -43,7 +43,7 @@ struct iio_buffer_access_funcs {
 	int (*read_first_n)(struct iio_buffer *buffer,
 			    size_t n,
 			    char __user *buf);
-	bool (*data_available)(struct iio_buffer *buffer);
+	size_t (*data_available)(struct iio_buffer *buffer);
 
 	int (*request_update)(struct iio_buffer *buffer);
 
@@ -72,6 +72,7 @@ struct iio_buffer_access_funcs {
  * @demux_bounce:	[INTERN] buffer for doing gather from incoming scan.
  * @buffer_list:	[INTERN] entry in the devices list of current buffers.
  * @ref:		[INTERN] reference count of the buffer.
+ * @watermark:		[INTERN] number of datums to wait for poll/read.
  */
 struct iio_buffer {
 	int					length;
@@ -90,6 +91,7 @@ struct iio_buffer {
 	void					*demux_bounce;
 	struct list_head			buffer_list;
 	struct kref				ref;
+	unsigned int				watermark;
 };
 
 /**
diff --git a/include/linux/iio/dac/max517.h b/include/linux/iio/dac/max517.h
index f6d1d25..7668716 100644
--- a/include/linux/iio/dac/max517.h
+++ b/include/linux/iio/dac/max517.h
@@ -9,7 +9,7 @@
 #define IIO_DAC_MAX517_H_
 
 struct max517_platform_data {
-	u16				vref_mv[2];
+	u16				vref_mv[8];
 };
 
 #endif /* IIO_DAC_MAX517_H_ */
diff --git a/include/linux/iio/events.h b/include/linux/iio/events.h
index 03fa332..8ad87d1 100644
--- a/include/linux/iio/events.h
+++ b/include/linux/iio/events.h
@@ -9,22 +9,8 @@
 #ifndef _IIO_EVENTS_H_
 #define _IIO_EVENTS_H_
 
-#include <linux/ioctl.h>
-#include <linux/types.h>
 #include <linux/iio/types.h>
-
-/**
- * struct iio_event_data - The actual event being pushed to userspace
- * @id:		event identifier
- * @timestamp:	best estimate of time of event occurrence (often from
- *		the interrupt handler)
- */
-struct iio_event_data {
-	__u64	id;
-	__s64	timestamp;
-};
-
-#define IIO_GET_EVENT_FD_IOCTL _IOR('i', 0x90, int)
+#include <uapi/linux/iio/events.h>
 
 /**
  * IIO_EVENT_CODE() - create event identifier
@@ -70,18 +56,4 @@ struct iio_event_data {
 #define IIO_UNMOD_EVENT_CODE(chan_type, number, type, direction)	\
 	IIO_EVENT_CODE(chan_type, 0, 0, direction, type, number, 0, 0)
 
-#define IIO_EVENT_CODE_EXTRACT_TYPE(mask) ((mask >> 56) & 0xFF)
-
-#define IIO_EVENT_CODE_EXTRACT_DIR(mask) ((mask >> 48) & 0x7F)
-
-#define IIO_EVENT_CODE_EXTRACT_CHAN_TYPE(mask) ((mask >> 32) & 0xFF)
-
-/* Event code number extraction depends on which type of event we have.
- * Perhaps review this function in the future*/
-#define IIO_EVENT_CODE_EXTRACT_CHAN(mask) ((__s16)(mask & 0xFFFF))
-#define IIO_EVENT_CODE_EXTRACT_CHAN2(mask) ((__s16)(((mask) >> 16) & 0xFFFF))
-
-#define IIO_EVENT_CODE_EXTRACT_MODIFIER(mask) ((mask >> 40) & 0xFF)
-#define IIO_EVENT_CODE_EXTRACT_DIFF(mask) (((mask) >> 55) & 0x1)
-
 #endif
diff --git a/include/linux/iio/iio.h b/include/linux/iio/iio.h
index 80d8550..d86b753 100644
--- a/include/linux/iio/iio.h
+++ b/include/linux/iio/iio.h
@@ -338,6 +338,16 @@ struct iio_dev;
  *			provide a custom of_xlate function that reads the
  *			*args* and returns the appropriate index in registered
  *			IIO channels array.
+ * @hwfifo_set_watermark: function pointer to set the current hardware
+ *			fifo watermark level; see hwfifo_* entries in
+ *			Documentation/ABI/testing/sysfs-bus-iio for details on
+ *			how the hardware fifo operates
+ * @hwfifo_flush_to_buffer: function pointer to flush the samples stored
+ *			in the hardware fifo to the device buffer. The driver
+ *			should not flush more than count samples. The function
+ *			must return the number of samples flushed, 0 if no
+ *			samples were flushed or a negative integer if no samples
+ *			were flushed and there was an error.
  **/
 struct iio_info {
 	struct module			*driver_module;
@@ -399,6 +409,9 @@ struct iio_info {
 				  unsigned *readval);
 	int (*of_xlate)(struct iio_dev *indio_dev,
 			const struct of_phandle_args *iiospec);
+	int (*hwfifo_set_watermark)(struct iio_dev *indio_dev, unsigned val);
+	int (*hwfifo_flush_to_buffer)(struct iio_dev *indio_dev,
+				      unsigned count);
 };
 
 /**
diff --git a/include/linux/iio/types.h b/include/linux/iio/types.h
index 580ed5b..942b6de 100644
--- a/include/linux/iio/types.h
+++ b/include/linux/iio/types.h
@@ -10,76 +10,7 @@
 #ifndef _IIO_TYPES_H_
 #define _IIO_TYPES_H_
 
-enum iio_chan_type {
-	IIO_VOLTAGE,
-	IIO_CURRENT,
-	IIO_POWER,
-	IIO_ACCEL,
-	IIO_ANGL_VEL,
-	IIO_MAGN,
-	IIO_LIGHT,
-	IIO_INTENSITY,
-	IIO_PROXIMITY,
-	IIO_TEMP,
-	IIO_INCLI,
-	IIO_ROT,
-	IIO_ANGL,
-	IIO_TIMESTAMP,
-	IIO_CAPACITANCE,
-	IIO_ALTVOLTAGE,
-	IIO_CCT,
-	IIO_PRESSURE,
-	IIO_HUMIDITYRELATIVE,
-	IIO_ACTIVITY,
-	IIO_STEPS,
-	IIO_ENERGY,
-	IIO_DISTANCE,
-	IIO_VELOCITY,
-};
-
-enum iio_modifier {
-	IIO_NO_MOD,
-	IIO_MOD_X,
-	IIO_MOD_Y,
-	IIO_MOD_Z,
-	IIO_MOD_X_AND_Y,
-	IIO_MOD_X_AND_Z,
-	IIO_MOD_Y_AND_Z,
-	IIO_MOD_X_AND_Y_AND_Z,
-	IIO_MOD_X_OR_Y,
-	IIO_MOD_X_OR_Z,
-	IIO_MOD_Y_OR_Z,
-	IIO_MOD_X_OR_Y_OR_Z,
-	IIO_MOD_LIGHT_BOTH,
-	IIO_MOD_LIGHT_IR,
-	IIO_MOD_ROOT_SUM_SQUARED_X_Y,
-	IIO_MOD_SUM_SQUARED_X_Y_Z,
-	IIO_MOD_LIGHT_CLEAR,
-	IIO_MOD_LIGHT_RED,
-	IIO_MOD_LIGHT_GREEN,
-	IIO_MOD_LIGHT_BLUE,
-	IIO_MOD_QUATERNION,
-	IIO_MOD_TEMP_AMBIENT,
-	IIO_MOD_TEMP_OBJECT,
-	IIO_MOD_NORTH_MAGN,
-	IIO_MOD_NORTH_TRUE,
-	IIO_MOD_NORTH_MAGN_TILT_COMP,
-	IIO_MOD_NORTH_TRUE_TILT_COMP,
-	IIO_MOD_RUNNING,
-	IIO_MOD_JOGGING,
-	IIO_MOD_WALKING,
-	IIO_MOD_STILL,
-	IIO_MOD_ROOT_SUM_SQUARED_X_Y_Z,
-};
-
-enum iio_event_type {
-	IIO_EV_TYPE_THRESH,
-	IIO_EV_TYPE_MAG,
-	IIO_EV_TYPE_ROC,
-	IIO_EV_TYPE_THRESH_ADAPTIVE,
-	IIO_EV_TYPE_MAG_ADAPTIVE,
-	IIO_EV_TYPE_CHANGE,
-};
+#include <uapi/linux/iio/types.h>
 
 enum iio_event_info {
 	IIO_EV_INFO_ENABLE,
@@ -88,13 +19,6 @@ enum iio_event_info {
 	IIO_EV_INFO_PERIOD,
 };
 
-enum iio_event_direction {
-	IIO_EV_DIR_EITHER,
-	IIO_EV_DIR_RISING,
-	IIO_EV_DIR_FALLING,
-	IIO_EV_DIR_NONE,
-};
-
 #define IIO_VAL_INT 1
 #define IIO_VAL_INT_PLUS_MICRO 2
 #define IIO_VAL_INT_PLUS_NANO 3
diff --git a/include/linux/init.h b/include/linux/init.h
index 2df8e8d..21b6d76 100644
--- a/include/linux/init.h
+++ b/include/linux/init.h
@@ -253,21 +253,41 @@ struct obs_kernel_param {
  * obs_kernel_param "array" too far apart in .init.setup.
  */
 #define __setup_param(str, unique_id, fn, early)			\
-	static const char __setup_str_##unique_id[] __initconst	\
-		__aligned(1) = str; \
-	static struct obs_kernel_param __setup_##unique_id	\
-		__used __section(.init.setup)			\
-		__attribute__((aligned((sizeof(long)))))	\
+	static const char __setup_str_##unique_id[] __initconst		\
+		__aligned(1) = str; 					\
+	static struct obs_kernel_param __setup_##unique_id		\
+		__used __section(.init.setup)				\
+		__attribute__((aligned((sizeof(long)))))		\
 		= { __setup_str_##unique_id, fn, early }
 
-#define __setup(str, fn)					\
+#define __setup(str, fn)						\
 	__setup_param(str, fn, fn, 0)
 
-/* NOTE: fn is as per module_param, not __setup!  Emits warning if fn
- * returns non-zero. */
-#define early_param(str, fn)					\
+/*
+ * NOTE: fn is as per module_param, not __setup!
+ * Emits warning if fn returns non-zero.
+ */
+#define early_param(str, fn)						\
 	__setup_param(str, fn, fn, 1)
 
+#define early_param_on_off(str_on, str_off, var, config)		\
+									\
+	int var = IS_ENABLED(config);					\
+									\
+	static int __init parse_##var##_on(char *arg)			\
+	{								\
+		var = 1;						\
+		return 0;						\
+	}								\
+	__setup_param(str_on, parse_##var##_on, parse_##var##_on, 1);	\
+									\
+	static int __init parse_##var##_off(char *arg)			\
+	{								\
+		var = 0;						\
+		return 0;						\
+	}								\
+	__setup_param(str_off, parse_##var##_off, parse_##var##_off, 1)
+
 /* Relies on boot_command_line being set */
 void __init parse_early_param(void);
 void __init parse_early_options(char *cmdline);
diff --git a/include/linux/intel_mid_dma.h b/include/linux/intel_mid_dma.h
deleted file mode 100644
index 10496bd..0000000
--- a/include/linux/intel_mid_dma.h
+++ /dev/null
@@ -1,76 +0,0 @@
-/*
- *  intel_mid_dma.h - Intel MID DMA Drivers
- *
- *  Copyright (C) 2008-10 Intel Corp
- *  Author: Vinod Koul <vinod.koul@intel.com>
- *  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; version 2 of the License.
- *
- *  This program is distributed in the hope that it will be useful, but
- *  WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
- *
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- *
- */
-#ifndef __INTEL_MID_DMA_H__
-#define __INTEL_MID_DMA_H__
-
-#include <linux/dmaengine.h>
-
-#define DMA_PREP_CIRCULAR_LIST		(1 << 10)
-
-/*DMA mode configurations*/
-enum intel_mid_dma_mode {
-	LNW_DMA_PER_TO_MEM = 0, /*periphral to memory configuration*/
-	LNW_DMA_MEM_TO_PER,	/*memory to periphral configuration*/
-	LNW_DMA_MEM_TO_MEM,	/*mem to mem confg (testing only)*/
-};
-
-/*DMA handshaking*/
-enum intel_mid_dma_hs_mode {
-	LNW_DMA_HW_HS = 0,	/*HW Handshaking only*/
-	LNW_DMA_SW_HS = 1,	/*SW Handshaking not recommended*/
-};
-
-/*Burst size configuration*/
-enum intel_mid_dma_msize {
-	LNW_DMA_MSIZE_1 = 0x0,
-	LNW_DMA_MSIZE_4 = 0x1,
-	LNW_DMA_MSIZE_8 = 0x2,
-	LNW_DMA_MSIZE_16 = 0x3,
-	LNW_DMA_MSIZE_32 = 0x4,
-	LNW_DMA_MSIZE_64 = 0x5,
-};
-
-/**
- * struct intel_mid_dma_slave - DMA slave structure
- *
- * @dirn: DMA trf direction
- * @src_width: tx register width
- * @dst_width: rx register width
- * @hs_mode: HW/SW handshaking mode
- * @cfg_mode: DMA data transfer mode (per-per/mem-per/mem-mem)
- * @src_msize: Source DMA burst size
- * @dst_msize: Dst DMA burst size
- * @per_addr: Periphral address
- * @device_instance: DMA peripheral device instance, we can have multiple
- *		peripheral device connected to single DMAC
- */
-struct intel_mid_dma_slave {
-	enum intel_mid_dma_hs_mode	hs_mode;  /*handshaking*/
-	enum intel_mid_dma_mode		cfg_mode; /*mode configuration*/
-	unsigned int		device_instance; /*0, 1 for periphral instance*/
-	struct dma_slave_config		dma_slave;
-};
-
-#endif /*__INTEL_MID_DMA_H__*/
diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h
index d9b05b5..950ae45 100644
--- a/include/linux/interrupt.h
+++ b/include/linux/interrupt.h
@@ -39,8 +39,6 @@
  * These flags used only by the kernel as part of the
  * irq handling routines.
  *
- * IRQF_DISABLED - keep irqs disabled when calling the action handler.
- *                 DEPRECATED. This flag is a NOOP and scheduled to be removed
  * IRQF_SHARED - allow sharing the irq among several devices
  * IRQF_PROBE_SHARED - set by callers when they expect sharing mismatches to occur
  * IRQF_TIMER - Flag to mark this interrupt as timer interrupt
@@ -52,13 +50,18 @@
  * IRQF_ONESHOT - Interrupt is not reenabled after the hardirq handler finished.
  *                Used by threaded interrupts which need to keep the
  *                irq line disabled until the threaded handler has been run.
- * IRQF_NO_SUSPEND - Do not disable this IRQ during suspend
+ * IRQF_NO_SUSPEND - Do not disable this IRQ during suspend.  Does not guarantee
+ *                   that this interrupt will wake the system from a suspended
+ *                   state.  See Documentation/power/suspend-and-interrupts.txt
  * IRQF_FORCE_RESUME - Force enable it on resume even if IRQF_NO_SUSPEND is set
  * IRQF_NO_THREAD - Interrupt cannot be threaded
  * IRQF_EARLY_RESUME - Resume IRQ early during syscore instead of at device
  *                resume time.
+ * IRQF_COND_SUSPEND - If the IRQ is shared with a NO_SUSPEND user, execute this
+ *                interrupt handler after suspending interrupts. For system
+ *                wakeup devices users need to implement wakeup detection in
+ *                their interrupt handlers.
  */
-#define IRQF_DISABLED		0x00000020
 #define IRQF_SHARED		0x00000080
 #define IRQF_PROBE_SHARED	0x00000100
 #define __IRQF_TIMER		0x00000200
@@ -70,6 +73,7 @@
 #define IRQF_FORCE_RESUME	0x00008000
 #define IRQF_NO_THREAD		0x00010000
 #define IRQF_EARLY_RESUME	0x00020000
+#define IRQF_COND_SUSPEND	0x00040000
 
 #define IRQF_TIMER		(__IRQF_TIMER | IRQF_NO_SUSPEND | IRQF_NO_THREAD)
 
@@ -184,6 +188,7 @@ extern void devm_free_irq(struct device *dev, unsigned int irq, void *dev_id);
 #endif
 
 extern void disable_irq_nosync(unsigned int irq);
+extern bool disable_hardirq(unsigned int irq);
 extern void disable_irq(unsigned int irq);
 extern void disable_percpu_irq(unsigned int irq);
 extern void enable_irq(unsigned int irq);
@@ -356,6 +361,20 @@ static inline int disable_irq_wake(unsigned int irq)
 	return irq_set_irq_wake(irq, 0);
 }
 
+/*
+ * irq_get_irqchip_state/irq_set_irqchip_state specific flags
+ */
+enum irqchip_irq_state {
+	IRQCHIP_STATE_PENDING,		/* Is interrupt pending? */
+	IRQCHIP_STATE_ACTIVE,		/* Is interrupt in progress? */
+	IRQCHIP_STATE_MASKED,		/* Is interrupt masked? */
+	IRQCHIP_STATE_LINE_LEVEL,	/* Is IRQ line high? */
+};
+
+extern int irq_get_irqchip_state(unsigned int irq, enum irqchip_irq_state which,
+				 bool *state);
+extern int irq_set_irqchip_state(unsigned int irq, enum irqchip_irq_state which,
+				 bool state);
 
 #ifdef CONFIG_IRQ_FORCED_THREADING
 extern bool force_irqthreads;
diff --git a/include/linux/irq.h b/include/linux/irq.h
index d09ec7a..62c6901 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -30,6 +30,7 @@
 struct seq_file;
 struct module;
 struct msi_msg;
+enum irqchip_irq_state;
 
 /*
  * IRQ line status.
@@ -324,6 +325,8 @@ static inline irq_hw_number_t irqd_to_hwirq(struct irq_data *d)
  *				irq_request_resources
  * @irq_compose_msi_msg:	optional to compose message content for MSI
  * @irq_write_msi_msg:	optional to write message content for MSI
+ * @irq_get_irqchip_state:	return the internal state of an interrupt
+ * @irq_set_irqchip_state:	set the internal state of a interrupt
  * @flags:		chip specific flags
  */
 struct irq_chip {
@@ -363,6 +366,9 @@ struct irq_chip {
 	void		(*irq_compose_msi_msg)(struct irq_data *data, struct msi_msg *msg);
 	void		(*irq_write_msi_msg)(struct irq_data *data, struct msi_msg *msg);
 
+	int		(*irq_get_irqchip_state)(struct irq_data *data, enum irqchip_irq_state which, bool *state);
+	int		(*irq_set_irqchip_state)(struct irq_data *data, enum irqchip_irq_state which, bool state);
+
 	unsigned long	flags;
 };
 
@@ -460,6 +466,7 @@ extern void irq_chip_eoi_parent(struct irq_data *data);
 extern int irq_chip_set_affinity_parent(struct irq_data *data,
 					const struct cpumask *dest,
 					bool force);
+extern int irq_chip_set_wake_parent(struct irq_data *data, unsigned int on);
 #endif
 
 /* Handling of unhandled and spurious interrupts: */
diff --git a/include/linux/irq_work.h b/include/linux/irq_work.h
index bf3fe71..47b9ebd 100644
--- a/include/linux/irq_work.h
+++ b/include/linux/irq_work.h
@@ -38,16 +38,17 @@ bool irq_work_queue(struct irq_work *work);
 bool irq_work_queue_on(struct irq_work *work, int cpu);
 #endif
 
-void irq_work_run(void);
 void irq_work_tick(void);
 void irq_work_sync(struct irq_work *work);
 
 #ifdef CONFIG_IRQ_WORK
 #include <asm/irq_work.h>
 
+void irq_work_run(void);
 bool irq_work_needs_cpu(void);
 #else
 static inline bool irq_work_needs_cpu(void) { return false; }
+static inline void irq_work_run(void) { }
 #endif
 
 #endif /* _LINUX_IRQ_WORK_H */
diff --git a/include/linux/irqchip/arm-gic-v3.h b/include/linux/irqchip/arm-gic-v3.h
index 800544b..ffbc034 100644
--- a/include/linux/irqchip/arm-gic-v3.h
+++ b/include/linux/irqchip/arm-gic-v3.h
@@ -126,8 +126,23 @@
 #define GICR_PROPBASER_WaWb		(5U << 7)
 #define GICR_PROPBASER_RaWaWt		(6U << 7)
 #define GICR_PROPBASER_RaWaWb		(7U << 7)
+#define GICR_PROPBASER_CACHEABILITY_MASK (7U << 7)
 #define GICR_PROPBASER_IDBITS_MASK	(0x1f)
 
+#define GICR_PENDBASER_NonShareable	(0U << 10)
+#define GICR_PENDBASER_InnerShareable	(1U << 10)
+#define GICR_PENDBASER_OuterShareable	(2U << 10)
+#define GICR_PENDBASER_SHAREABILITY_MASK (3UL << 10)
+#define GICR_PENDBASER_nCnB		(0U << 7)
+#define GICR_PENDBASER_nC		(1U << 7)
+#define GICR_PENDBASER_RaWt		(2U << 7)
+#define GICR_PENDBASER_RaWb		(3U << 7)
+#define GICR_PENDBASER_WaWt		(4U << 7)
+#define GICR_PENDBASER_WaWb		(5U << 7)
+#define GICR_PENDBASER_RaWaWt		(6U << 7)
+#define GICR_PENDBASER_RaWaWb		(7U << 7)
+#define GICR_PENDBASER_CACHEABILITY_MASK (7U << 7)
+
 /*
  * Re-Distributor registers, offsets from SGI_base
  */
@@ -166,6 +181,11 @@
 
 #define GITS_TRANSLATER			0x10040
 
+#define GITS_CTLR_ENABLE		(1U << 0)
+#define GITS_CTLR_QUIESCENT		(1U << 31)
+
+#define GITS_TYPER_DEVBITS_SHIFT	13
+#define GITS_TYPER_DEVBITS(r)		((((r) >> GITS_TYPER_DEVBITS_SHIFT) & 0x1f) + 1)
 #define GITS_TYPER_PTA			(1UL << 19)
 
 #define GITS_CBASER_VALID		(1UL << 63)
@@ -177,6 +197,7 @@
 #define GITS_CBASER_WaWb		(5UL << 59)
 #define GITS_CBASER_RaWaWt		(6UL << 59)
 #define GITS_CBASER_RaWaWb		(7UL << 59)
+#define GITS_CBASER_CACHEABILITY_MASK	(7UL << 59)
 #define GITS_CBASER_NonShareable	(0UL << 10)
 #define GITS_CBASER_InnerShareable	(1UL << 10)
 #define GITS_CBASER_OuterShareable	(2UL << 10)
@@ -193,6 +214,7 @@
 #define GITS_BASER_WaWb			(5UL << 59)
 #define GITS_BASER_RaWaWt		(6UL << 59)
 #define GITS_BASER_RaWaWb		(7UL << 59)
+#define GITS_BASER_CACHEABILITY_MASK	(7UL << 59)
 #define GITS_BASER_TYPE_SHIFT		(56)
 #define GITS_BASER_TYPE(r)		(((r) >> GITS_BASER_TYPE_SHIFT) & 7)
 #define GITS_BASER_ENTRY_SIZE_SHIFT	(48)
diff --git a/include/linux/irqchip/arm-gic.h b/include/linux/irqchip/arm-gic.h
index 71d706d..36ec4ae 100644
--- a/include/linux/irqchip/arm-gic.h
+++ b/include/linux/irqchip/arm-gic.h
@@ -97,6 +97,7 @@ struct device_node;
 
 extern struct irq_chip gic_arch_extn;
 
+void gic_set_irqchip_flags(unsigned long flags);
 void gic_init_bases(unsigned int, int, void __iomem *, void __iomem *,
 		    u32 offset, struct device_node *);
 void gic_cascade_irq(unsigned int gic_nr, unsigned int irq);
@@ -115,11 +116,5 @@ int gic_get_cpu_id(unsigned int cpu);
 void gic_migrate_target(unsigned int new_cpu_id);
 unsigned long gic_get_sgir_physaddr(void);
 
-extern const struct irq_domain_ops *gic_routable_irq_domain_ops;
-static inline void __init register_routable_domain_ops
-					(const struct irq_domain_ops *ops)
-{
-	gic_routable_irq_domain_ops = ops;
-}
 #endif /* __ASSEMBLY */
 #endif
diff --git a/include/linux/irqchip/irq-crossbar.h b/include/linux/irqchip/irq-crossbar.h
deleted file mode 100644
index e5537b8..0000000
--- a/include/linux/irqchip/irq-crossbar.h
+++ /dev/null
@@ -1,11 +0,0 @@
-/*
- *  drivers/irqchip/irq-crossbar.h
- *
- *  Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- */
-int irqcrossbar_init(void);
diff --git a/include/linux/irqchip/mips-gic.h b/include/linux/irqchip/mips-gic.h
index e6a6aac..3ea2e47 100644
--- a/include/linux/irqchip/mips-gic.h
+++ b/include/linux/irqchip/mips-gic.h
@@ -240,6 +240,8 @@ extern unsigned int gic_get_count_width(void);
 extern cycle_t gic_read_compare(void);
 extern void gic_write_compare(cycle_t cnt);
 extern void gic_write_cpu_compare(cycle_t cnt, int cpu);
+extern void gic_start_count(void);
+extern void gic_stop_count(void);
 extern void gic_send_ipi(unsigned int intr);
 extern unsigned int plat_ipi_call_int_xlate(unsigned int);
 extern unsigned int plat_ipi_resched_int_xlate(unsigned int);
diff --git a/include/linux/irqdesc.h b/include/linux/irqdesc.h
index faf433a..dd1109f 100644
--- a/include/linux/irqdesc.h
+++ b/include/linux/irqdesc.h
@@ -78,6 +78,7 @@ struct irq_desc {
 #ifdef CONFIG_PM_SLEEP
 	unsigned int		nr_actions;
 	unsigned int		no_suspend_depth;
+	unsigned int		cond_suspend_depth;
 	unsigned int		force_resume_depth;
 #endif
 #ifdef CONFIG_PROC_FS
diff --git a/include/linux/irqflags.h b/include/linux/irqflags.h
index d176d65..5dd1272 100644
--- a/include/linux/irqflags.h
+++ b/include/linux/irqflags.h
@@ -85,7 +85,7 @@
  * The local_irq_*() APIs are equal to the raw_local_irq*()
  * if !TRACE_IRQFLAGS.
  */
-#ifdef CONFIG_TRACE_IRQFLAGS_SUPPORT
+#ifdef CONFIG_TRACE_IRQFLAGS
 #define local_irq_enable() \
 	do { trace_hardirqs_on(); raw_local_irq_enable(); } while (0)
 #define local_irq_disable() \
@@ -107,22 +107,6 @@
 			raw_local_irq_restore(flags);	\
 		}					\
 	} while (0)
-#define local_save_flags(flags)				\
-	do {						\
-		raw_local_save_flags(flags);		\
-	} while (0)
-
-#define irqs_disabled_flags(flags)			\
-	({						\
-		raw_irqs_disabled_flags(flags);		\
-	})
-
-#define irqs_disabled()					\
-	({						\
-		unsigned long _flags;			\
-		raw_local_save_flags(_flags);		\
-		raw_irqs_disabled_flags(_flags);	\
-	})
 
 #define safe_halt()				\
 	do {					\
@@ -131,7 +115,7 @@
 	} while (0)
 
 
-#else /* !CONFIG_TRACE_IRQFLAGS_SUPPORT */
+#else /* !CONFIG_TRACE_IRQFLAGS */
 
 #define local_irq_enable()	do { raw_local_irq_enable(); } while (0)
 #define local_irq_disable()	do { raw_local_irq_disable(); } while (0)
@@ -140,11 +124,28 @@
 		raw_local_irq_save(flags);			\
 	} while (0)
 #define local_irq_restore(flags) do { raw_local_irq_restore(flags); } while (0)
-#define local_save_flags(flags)	do { raw_local_save_flags(flags); } while (0)
-#define irqs_disabled()		(raw_irqs_disabled())
-#define irqs_disabled_flags(flags) (raw_irqs_disabled_flags(flags))
 #define safe_halt()		do { raw_safe_halt(); } while (0)
 
+#endif /* CONFIG_TRACE_IRQFLAGS */
+
+#define local_save_flags(flags)	raw_local_save_flags(flags)
+
+/*
+ * Some architectures don't define arch_irqs_disabled(), so even if either
+ * definition would be fine we need to use different ones for the time being
+ * to avoid build issues.
+ */
+#ifdef CONFIG_TRACE_IRQFLAGS_SUPPORT
+#define irqs_disabled()					\
+	({						\
+		unsigned long _flags;			\
+		raw_local_save_flags(_flags);		\
+		raw_irqs_disabled_flags(_flags);	\
+	})
+#else /* !CONFIG_TRACE_IRQFLAGS_SUPPORT */
+#define irqs_disabled()	raw_irqs_disabled()
 #endif /* CONFIG_TRACE_IRQFLAGS_SUPPORT */
 
+#define irqs_disabled_flags(flags) raw_irqs_disabled_flags(flags)
+
 #endif
diff --git a/include/linux/jump_label.h b/include/linux/jump_label.h
index 98f923b6..f4de473 100644
--- a/include/linux/jump_label.h
+++ b/include/linux/jump_label.h
@@ -45,6 +45,12 @@
  * same as using STATIC_KEY_INIT_FALSE.
  */
 
+#if defined(CC_HAVE_ASM_GOTO) && defined(CONFIG_JUMP_LABEL)
+# define HAVE_JUMP_LABEL
+#endif
+
+#ifndef __ASSEMBLY__
+
 #include <linux/types.h>
 #include <linux/compiler.h>
 #include <linux/bug.h>
@@ -55,7 +61,7 @@ extern bool static_key_initialized;
 				    "%s used before call to jump_label_init", \
 				    __func__)
 
-#if defined(CC_HAVE_ASM_GOTO) && defined(CONFIG_JUMP_LABEL)
+#ifdef HAVE_JUMP_LABEL
 
 struct static_key {
 	atomic_t enabled;
@@ -66,13 +72,18 @@ struct static_key {
 #endif
 };
 
-# include <asm/jump_label.h>
-# define HAVE_JUMP_LABEL
 #else
 struct static_key {
 	atomic_t enabled;
 };
-#endif	/* CC_HAVE_ASM_GOTO && CONFIG_JUMP_LABEL */
+#endif	/* HAVE_JUMP_LABEL */
+#endif /* __ASSEMBLY__ */
+
+#ifdef HAVE_JUMP_LABEL
+#include <asm/jump_label.h>
+#endif
+
+#ifndef __ASSEMBLY__
 
 enum jump_label_type {
 	JUMP_LABEL_DISABLE = 0,
@@ -203,3 +214,5 @@ static inline bool static_key_enabled(struct static_key *key)
 }
 
 #endif	/* _LINUX_JUMP_LABEL_H */
+
+#endif /* __ASSEMBLY__ */
diff --git a/include/linux/kasan.h b/include/linux/kasan.h
index 72ba725..5bb0744 100644
--- a/include/linux/kasan.h
+++ b/include/linux/kasan.h
@@ -5,6 +5,7 @@
 
 struct kmem_cache;
 struct page;
+struct vm_struct;
 
 #ifdef CONFIG_KASAN
 
@@ -49,15 +50,11 @@ void kasan_krealloc(const void *object, size_t new_size);
 void kasan_slab_alloc(struct kmem_cache *s, void *object);
 void kasan_slab_free(struct kmem_cache *s, void *object);
 
-#define MODULE_ALIGN (PAGE_SIZE << KASAN_SHADOW_SCALE_SHIFT)
-
 int kasan_module_alloc(void *addr, size_t size);
-void kasan_module_free(void *addr);
+void kasan_free_shadow(const struct vm_struct *vm);
 
 #else /* CONFIG_KASAN */
 
-#define MODULE_ALIGN 1
-
 static inline void kasan_unpoison_shadow(const void *address, size_t size) {}
 
 static inline void kasan_enable_current(void) {}
@@ -82,7 +79,7 @@ static inline void kasan_slab_alloc(struct kmem_cache *s, void *object) {}
 static inline void kasan_slab_free(struct kmem_cache *s, void *object) {}
 
 static inline int kasan_module_alloc(void *addr, size_t size) { return 0; }
-static inline void kasan_module_free(void *addr) {}
+static inline void kasan_free_shadow(const struct vm_struct *vm) {}
 
 #endif /* CONFIG_KASAN */
 
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index d12b210..82af5d0 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -165,12 +165,12 @@ enum kvm_bus {
 	KVM_NR_BUSES
 };
 
-int kvm_io_bus_write(struct kvm *kvm, enum kvm_bus bus_idx, gpa_t addr,
+int kvm_io_bus_write(struct kvm_vcpu *vcpu, enum kvm_bus bus_idx, gpa_t addr,
 		     int len, const void *val);
-int kvm_io_bus_write_cookie(struct kvm *kvm, enum kvm_bus bus_idx, gpa_t addr,
-			    int len, const void *val, long cookie);
-int kvm_io_bus_read(struct kvm *kvm, enum kvm_bus bus_idx, gpa_t addr, int len,
-		    void *val);
+int kvm_io_bus_write_cookie(struct kvm_vcpu *vcpu, enum kvm_bus bus_idx,
+			    gpa_t addr, int len, const void *val, long cookie);
+int kvm_io_bus_read(struct kvm_vcpu *vcpu, enum kvm_bus bus_idx, gpa_t addr,
+		    int len, void *val);
 int kvm_io_bus_register_dev(struct kvm *kvm, enum kvm_bus bus_idx, gpa_t addr,
 			    int len, struct kvm_io_device *dev);
 int kvm_io_bus_unregister_dev(struct kvm *kvm, enum kvm_bus bus_idx,
@@ -658,7 +658,6 @@ int kvm_arch_vcpu_runnable(struct kvm_vcpu *vcpu);
 int kvm_arch_vcpu_should_kick(struct kvm_vcpu *vcpu);
 
 void *kvm_kvzalloc(unsigned long size);
-void kvm_kvfree(const void *addr);
 
 #ifndef __KVM_HAVE_ARCH_VM_ALLOC
 static inline struct kvm *kvm_arch_alloc_vm(void)
@@ -700,6 +699,20 @@ static inline wait_queue_head_t *kvm_arch_vcpu_wq(struct kvm_vcpu *vcpu)
 #endif
 }
 
+#ifdef __KVM_HAVE_ARCH_INTC_INITIALIZED
+/*
+ * returns true if the virtual interrupt controller is initialized and
+ * ready to accept virtual IRQ. On some architectures the virtual interrupt
+ * controller is dynamically instantiated and this is not always true.
+ */
+bool kvm_arch_intc_initialized(struct kvm *kvm);
+#else
+static inline bool kvm_arch_intc_initialized(struct kvm *kvm)
+{
+	return true;
+}
+#endif
+
 int kvm_arch_init_vm(struct kvm *kvm, unsigned long type);
 void kvm_arch_destroy_vm(struct kvm *kvm);
 void kvm_arch_sync_events(struct kvm *kvm);
@@ -969,11 +982,16 @@ static inline int kvm_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args)
 #endif /* CONFIG_HAVE_KVM_EVENTFD */
 
 #ifdef CONFIG_KVM_APIC_ARCHITECTURE
-static inline bool kvm_vcpu_is_bsp(struct kvm_vcpu *vcpu)
+static inline bool kvm_vcpu_is_reset_bsp(struct kvm_vcpu *vcpu)
 {
 	return vcpu->kvm->bsp_vcpu_id == vcpu->vcpu_id;
 }
 
+static inline bool kvm_vcpu_is_bsp(struct kvm_vcpu *vcpu)
+{
+	return (vcpu->arch.apic_base & MSR_IA32_APICBASE_BSP) != 0;
+}
+
 bool kvm_vcpu_compatible(struct kvm_vcpu *vcpu);
 
 #else
diff --git a/include/linux/lcm.h b/include/linux/lcm.h
index 7bf01d7..1ce79a7 100644
--- a/include/linux/lcm.h
+++ b/include/linux/lcm.h
@@ -4,5 +4,6 @@
 #include <linux/compiler.h>
 
 unsigned long lcm(unsigned long a, unsigned long b) __attribute_const__;
+unsigned long lcm_not_zero(unsigned long a, unsigned long b) __attribute_const__;
 
 #endif /* _LCM_H */
diff --git a/include/linux/libata.h b/include/linux/libata.h
index fc03efa..8dad4a3 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -231,7 +231,7 @@ enum {
 	ATA_FLAG_SW_ACTIVITY	= (1 << 22), /* driver supports sw activity
 					      * led */
 	ATA_FLAG_NO_DIPM	= (1 << 23), /* host not happy with DIPM */
-	ATA_FLAG_LOWTAG		= (1 << 24), /* host wants lowest available tag */
+	ATA_FLAG_SAS_HOST	= (1 << 24), /* SAS host */
 
 	/* bits 24:31 of ap->flags are reserved for LLD specific flags */
 
diff --git a/include/linux/mfd/abx500/ux500_chargalg.h b/include/linux/mfd/abx500/ux500_chargalg.h
index 234c991..67703f2 100644
--- a/include/linux/mfd/abx500/ux500_chargalg.h
+++ b/include/linux/mfd/abx500/ux500_chargalg.h
@@ -9,8 +9,13 @@
 
 #include <linux/power_supply.h>
 
-#define psy_to_ux500_charger(x) container_of((x), \
-		struct ux500_charger, psy)
+/*
+ * Valid only for supplies of type:
+ * - POWER_SUPPLY_TYPE_MAINS,
+ * - POWER_SUPPLY_TYPE_USB,
+ * because only them store as drv_data pointer to struct ux500_charger.
+ */
+#define psy_to_ux500_charger(x) power_supply_get_drvdata(psy)
 
 /* Forward declaration */
 struct ux500_charger;
@@ -35,7 +40,7 @@ struct ux500_charger_ops {
  * @power_path		USB power path support
  */
 struct ux500_charger {
-	struct power_supply psy;
+	struct power_supply *psy;
 	struct ux500_charger_ops ops;
 	int max_out_volt;
 	int max_out_curr;
diff --git a/include/linux/mfd/max77693.h b/include/linux/mfd/max77693.h
index f0b6585..09a4ded 100644
--- a/include/linux/mfd/max77693.h
+++ b/include/linux/mfd/max77693.h
@@ -30,7 +30,7 @@
 #ifndef __LINUX_MFD_MAX77693_H
 #define __LINUX_MFD_MAX77693_H
 
-/* MAX77686 regulator IDs */
+/* MAX77693 regulator IDs */
 enum max77693_regulators {
 	MAX77693_ESAFEOUT1 = 0,
 	MAX77693_ESAFEOUT2,
@@ -38,12 +38,6 @@ enum max77693_regulators {
 	MAX77693_REG_MAX,
 };
 
-struct max77693_regulator_data {
-	int id;
-	struct regulator_init_data *initdata;
-	struct device_node *of_node;
-};
-
 struct max77693_reg_data {
 	u8 addr;
 	u8 data;
@@ -103,10 +97,6 @@ struct max77693_led_platform_data {
 /* MAX77693 */
 
 struct max77693_platform_data {
-	/* regulator data */
-	struct max77693_regulator_data *regulators;
-	int num_regulators;
-
 	/* muic data */
 	struct max77693_muic_platform_data *muic_data;
 	struct max77693_led_platform_data *led_data;
diff --git a/include/linux/mfd/palmas.h b/include/linux/mfd/palmas.h
index fb0390a..bb270bd 100644
--- a/include/linux/mfd/palmas.h
+++ b/include/linux/mfd/palmas.h
@@ -117,6 +117,7 @@ struct palmas_pmic_driver_data {
 	int ldo_begin;
 	int ldo_end;
 	int max_reg;
+	bool has_regen3;
 	struct palmas_regs_info *palmas_regs_info;
 	struct of_regulator_match *palmas_matches;
 	struct palmas_sleep_requestor_info *sleep_req_info;
@@ -2999,6 +3000,9 @@ enum usb_irq_events {
 #define PALMAS_GPADC_TRIM15					0x0E
 #define PALMAS_GPADC_TRIM16					0x0F
 
+/* TPS659038 regen2_ctrl offset iss different from palmas */
+#define TPS659038_REGEN2_CTRL					0x12
+
 /* TPS65917 Interrupt registers */
 
 /* Registers for function INTERRUPT */
diff --git a/include/linux/mfd/rt5033.h b/include/linux/mfd/rt5033.h
index 010cff4..6cff5cf 100644
--- a/include/linux/mfd/rt5033.h
+++ b/include/linux/mfd/rt5033.h
@@ -39,7 +39,7 @@ struct rt5033_battery {
 	struct i2c_client	*client;
 	struct rt5033_dev	*rt5033;
 	struct regmap		*regmap;
-	struct power_supply	psy;
+	struct power_supply	*psy;
 };
 
 /* RT5033 charger platform data */
diff --git a/include/linux/mfd/stw481x.h b/include/linux/mfd/stw481x.h
index eda1215..833074b 100644
--- a/include/linux/mfd/stw481x.h
+++ b/include/linux/mfd/stw481x.h
@@ -41,15 +41,11 @@
 
 /**
  * struct stw481x - state holder for the Stw481x drivers
- * @mutex: mutex to serialize I2C accesses
  * @i2c_client: corresponding I2C client
- * @regulator: regulator device for regulator children
  * @map: regmap handle to access device registers
  */
 struct stw481x {
-	struct mutex		lock;
 	struct i2c_client	*client;
-	struct regulator_dev	*vmmc_regulator;
 	struct regmap		*map;
 };
 
diff --git a/include/linux/mfd/syscon/exynos5-pmu.h b/include/linux/mfd/syscon/exynos5-pmu.h
index 00ef24b..9352adc 100644
--- a/include/linux/mfd/syscon/exynos5-pmu.h
+++ b/include/linux/mfd/syscon/exynos5-pmu.h
@@ -36,6 +36,9 @@
 #define EXYNOS5420_MTCADC_PHY_CONTROL		(0x724)
 #define EXYNOS5420_DPTX_PHY_CONTROL		(0x728)
 
+/* Exynos5433 specific register definitions */
+#define EXYNOS5433_USBHOST30_PHY_CONTROL	(0x728)
+
 #define EXYNOS5_PHY_ENABLE			BIT(0)
 
 #define EXYNOS5_MIPI_PHY_S_RESETN		BIT(1)
diff --git a/include/linux/mfd/wm8350/supply.h b/include/linux/mfd/wm8350/supply.h
index 2b94793..8dc93673 100644
--- a/include/linux/mfd/wm8350/supply.h
+++ b/include/linux/mfd/wm8350/supply.h
@@ -123,9 +123,9 @@ struct wm8350_charger_policy {
 
 struct wm8350_power {
 	struct platform_device *pdev;
-	struct power_supply battery;
-	struct power_supply usb;
-	struct power_supply ac;
+	struct power_supply *battery;
+	struct power_supply *usb;
+	struct power_supply *ac;
 	struct wm8350_charger_policy *policy;
 
 	int rev_g_coeff;
diff --git a/include/linux/mlx4/qp.h b/include/linux/mlx4/qp.h
index 2bbc62a..551f854 100644
--- a/include/linux/mlx4/qp.h
+++ b/include/linux/mlx4/qp.h
@@ -427,7 +427,7 @@ struct mlx4_wqe_inline_seg {
 
 enum mlx4_update_qp_attr {
 	MLX4_UPDATE_QP_SMAC		= 1 << 0,
-	MLX4_UPDATE_QP_VSD		= 1 << 2,
+	MLX4_UPDATE_QP_VSD		= 1 << 1,
 	MLX4_UPDATE_QP_SUPPORTED_ATTRS	= (1 << 2) - 1
 };
 
diff --git a/include/linux/mmc/core.h b/include/linux/mmc/core.h
index 160448f..de722d4e 100644
--- a/include/linux/mmc/core.h
+++ b/include/linux/mmc/core.h
@@ -79,7 +79,7 @@ struct mmc_command {
 #define mmc_cmd_type(cmd)	((cmd)->flags & MMC_CMD_MASK)
 
 	unsigned int		retries;	/* max number of retries */
-	unsigned int		error;		/* command error */
+	int			error;		/* command error */
 
 /*
  * Standard errno values are used for errors, but some have specific
@@ -108,7 +108,7 @@ struct mmc_data {
 	unsigned int		timeout_clks;	/* data timeout (in clocks) */
 	unsigned int		blksz;		/* data block size */
 	unsigned int		blocks;		/* number of blocks */
-	unsigned int		error;		/* data error */
+	int			error;		/* data error */
 	unsigned int		flags;
 
 #define MMC_DATA_WRITE	(1 << 8)
diff --git a/include/linux/mmc/dw_mmc.h b/include/linux/mmc/dw_mmc.h
index 471fb31..1211199 100644
--- a/include/linux/mmc/dw_mmc.h
+++ b/include/linux/mmc/dw_mmc.h
@@ -44,6 +44,7 @@ struct mmc_data;
  * struct dw_mci - MMC controller state shared between all slots
  * @lock: Spinlock protecting the queue and associated data.
  * @regs: Pointer to MMIO registers.
+ * @fifo_reg: Pointer to MMIO registers for data FIFO
  * @sg: Scatterlist entry currently being processed by PIO code, if any.
  * @sg_miter: PIO mapping scatterlist iterator.
  * @cur_slot: The slot which is currently using the controller.
@@ -79,7 +80,6 @@ struct mmc_data;
  * @current_speed: Configured rate of the controller.
  * @num_slots: Number of slots available.
  * @verid: Denote Version ID.
- * @data_offset: Set the offset of DATA register according to VERID.
  * @dev: Device associated with the MMC controller.
  * @pdata: Platform data associated with the MMC controller.
  * @drv_data: Driver specific data for identified variant of the controller
@@ -132,6 +132,7 @@ struct dw_mci {
 	spinlock_t		lock;
 	spinlock_t		irq_lock;
 	void __iomem		*regs;
+	void __iomem		*fifo_reg;
 
 	struct scatterlist	*sg;
 	struct sg_mapping_iter	sg_miter;
@@ -172,7 +173,6 @@ struct dw_mci {
 	u32			num_slots;
 	u32			fifoth_val;
 	u16			verid;
-	u16			data_offset;
 	struct device		*dev;
 	struct dw_mci_board	*pdata;
 	const struct dw_mci_drv_data	*drv_data;
@@ -202,6 +202,8 @@ struct dw_mci {
 	int			irq;
 
 	int			sdio_id0;
+
+	struct timer_list       cmd11_timer;
 };
 
 /* DMA ops for Internal/External DMAC interface */
diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h
index 0c8cbe5..b5bedae 100644
--- a/include/linux/mmc/host.h
+++ b/include/linux/mmc/host.h
@@ -80,12 +80,6 @@ struct mmc_ios {
 
 struct mmc_host_ops {
 	/*
-	 * 'enable' is called when the host is claimed and 'disable' is called
-	 * when the host is released. 'enable' and 'disable' are deprecated.
-	 */
-	int (*enable)(struct mmc_host *host);
-	int (*disable)(struct mmc_host *host);
-	/*
 	 * It is optional for the host to implement pre_req and post_req in
 	 * order to support double buffering of requests (prepare one
 	 * request while another request is active).
diff --git a/include/linux/mmc/sdhci-spear.h b/include/linux/mmc/sdhci-spear.h
deleted file mode 100644
index 8cc095a..0000000
--- a/include/linux/mmc/sdhci-spear.h
+++ /dev/null
@@ -1,34 +0,0 @@
-/*
- * include/linux/mmc/sdhci-spear.h
- *
- * SDHCI declarations specific to ST SPEAr platform
- *
- * Copyright (C) 2010 ST Microelectronics
- * Viresh Kumar <viresh.linux@gmail.com>
- *
- * This file is licensed under the terms of the GNU General Public
- * License version 2. This program is licensed "as is" without any
- * warranty of any kind, whether express or implied.
- */
-
-#ifndef LINUX_MMC_SDHCI_SPEAR_H
-#define LINUX_MMC_SDHCI_SPEAR_H
-
-#include <linux/platform_device.h>
-/*
- * struct sdhci_plat_data: spear sdhci platform data structure
- *
- * card_int_gpio: gpio pin used for card detection
- */
-struct sdhci_plat_data {
-	int card_int_gpio;
-};
-
-/* This function is used to set platform_data field of pdev->dev */
-static inline void
-sdhci_set_plat_data(struct platform_device *pdev, struct sdhci_plat_data *data)
-{
-	pdev->dev.platform_data = data;
-}
-
-#endif /* LINUX_MMC_SDHCI_SPEAR_H */
diff --git a/include/linux/mmc/sdhci.h b/include/linux/mmc/sdhci.h
deleted file mode 100644
index c3e3db1..0000000
--- a/include/linux/mmc/sdhci.h
+++ /dev/null
@@ -1,218 +0,0 @@
-/*
- *  linux/include/linux/mmc/sdhci.h - Secure Digital Host Controller Interface
- *
- *  Copyright (C) 2005-2008 Pierre Ossman, All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or (at
- * your option) any later version.
- */
-#ifndef LINUX_MMC_SDHCI_H
-#define LINUX_MMC_SDHCI_H
-
-#include <linux/scatterlist.h>
-#include <linux/compiler.h>
-#include <linux/types.h>
-#include <linux/io.h>
-#include <linux/mmc/host.h>
-
-struct sdhci_host_next {
-	unsigned int	sg_count;
-	s32		cookie;
-};
-
-struct sdhci_host {
-	/* Data set by hardware interface driver */
-	const char *hw_name;	/* Hardware bus name */
-
-	unsigned int quirks;	/* Deviations from spec. */
-
-/* Controller doesn't honor resets unless we touch the clock register */
-#define SDHCI_QUIRK_CLOCK_BEFORE_RESET			(1<<0)
-/* Controller has bad caps bits, but really supports DMA */
-#define SDHCI_QUIRK_FORCE_DMA				(1<<1)
-/* Controller doesn't like to be reset when there is no card inserted. */
-#define SDHCI_QUIRK_NO_CARD_NO_RESET			(1<<2)
-/* Controller doesn't like clearing the power reg before a change */
-#define SDHCI_QUIRK_SINGLE_POWER_WRITE			(1<<3)
-/* Controller has flaky internal state so reset it on each ios change */
-#define SDHCI_QUIRK_RESET_CMD_DATA_ON_IOS		(1<<4)
-/* Controller has an unusable DMA engine */
-#define SDHCI_QUIRK_BROKEN_DMA				(1<<5)
-/* Controller has an unusable ADMA engine */
-#define SDHCI_QUIRK_BROKEN_ADMA				(1<<6)
-/* Controller can only DMA from 32-bit aligned addresses */
-#define SDHCI_QUIRK_32BIT_DMA_ADDR			(1<<7)
-/* Controller can only DMA chunk sizes that are a multiple of 32 bits */
-#define SDHCI_QUIRK_32BIT_DMA_SIZE			(1<<8)
-/* Controller can only ADMA chunks that are a multiple of 32 bits */
-#define SDHCI_QUIRK_32BIT_ADMA_SIZE			(1<<9)
-/* Controller needs to be reset after each request to stay stable */
-#define SDHCI_QUIRK_RESET_AFTER_REQUEST			(1<<10)
-/* Controller needs voltage and power writes to happen separately */
-#define SDHCI_QUIRK_NO_SIMULT_VDD_AND_POWER		(1<<11)
-/* Controller provides an incorrect timeout value for transfers */
-#define SDHCI_QUIRK_BROKEN_TIMEOUT_VAL			(1<<12)
-/* Controller has an issue with buffer bits for small transfers */
-#define SDHCI_QUIRK_BROKEN_SMALL_PIO			(1<<13)
-/* Controller does not provide transfer-complete interrupt when not busy */
-#define SDHCI_QUIRK_NO_BUSY_IRQ				(1<<14)
-/* Controller has unreliable card detection */
-#define SDHCI_QUIRK_BROKEN_CARD_DETECTION		(1<<15)
-/* Controller reports inverted write-protect state */
-#define SDHCI_QUIRK_INVERTED_WRITE_PROTECT		(1<<16)
-/* Controller does not like fast PIO transfers */
-#define SDHCI_QUIRK_PIO_NEEDS_DELAY			(1<<18)
-/* Controller has to be forced to use block size of 2048 bytes */
-#define SDHCI_QUIRK_FORCE_BLK_SZ_2048			(1<<20)
-/* Controller cannot do multi-block transfers */
-#define SDHCI_QUIRK_NO_MULTIBLOCK			(1<<21)
-/* Controller can only handle 1-bit data transfers */
-#define SDHCI_QUIRK_FORCE_1_BIT_DATA			(1<<22)
-/* Controller needs 10ms delay between applying power and clock */
-#define SDHCI_QUIRK_DELAY_AFTER_POWER			(1<<23)
-/* Controller uses SDCLK instead of TMCLK for data timeouts */
-#define SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK		(1<<24)
-/* Controller reports wrong base clock capability */
-#define SDHCI_QUIRK_CAP_CLOCK_BASE_BROKEN		(1<<25)
-/* Controller cannot support End Attribute in NOP ADMA descriptor */
-#define SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC		(1<<26)
-/* Controller is missing device caps. Use caps provided by host */
-#define SDHCI_QUIRK_MISSING_CAPS			(1<<27)
-/* Controller uses Auto CMD12 command to stop the transfer */
-#define SDHCI_QUIRK_MULTIBLOCK_READ_ACMD12		(1<<28)
-/* Controller doesn't have HISPD bit field in HI-SPEED SD card */
-#define SDHCI_QUIRK_NO_HISPD_BIT			(1<<29)
-/* Controller treats ADMA descriptors with length 0000h incorrectly */
-#define SDHCI_QUIRK_BROKEN_ADMA_ZEROLEN_DESC		(1<<30)
-/* The read-only detection via SDHCI_PRESENT_STATE register is unstable */
-#define SDHCI_QUIRK_UNSTABLE_RO_DETECT			(1<<31)
-
-	unsigned int quirks2;	/* More deviations from spec. */
-
-#define SDHCI_QUIRK2_HOST_OFF_CARD_ON			(1<<0)
-#define SDHCI_QUIRK2_HOST_NO_CMD23			(1<<1)
-/* The system physically doesn't support 1.8v, even if the host does */
-#define SDHCI_QUIRK2_NO_1_8_V				(1<<2)
-#define SDHCI_QUIRK2_PRESET_VALUE_BROKEN		(1<<3)
-#define SDHCI_QUIRK2_CARD_ON_NEEDS_BUS_ON		(1<<4)
-/* Controller has a non-standard host control register */
-#define SDHCI_QUIRK2_BROKEN_HOST_CONTROL		(1<<5)
-/* Controller does not support HS200 */
-#define SDHCI_QUIRK2_BROKEN_HS200			(1<<6)
-/* Controller does not support DDR50 */
-#define SDHCI_QUIRK2_BROKEN_DDR50			(1<<7)
-/* Stop command (CMD12) can set Transfer Complete when not using MMC_RSP_BUSY */
-#define SDHCI_QUIRK2_STOP_WITH_TC			(1<<8)
-/* Controller does not support 64-bit DMA */
-#define SDHCI_QUIRK2_BROKEN_64_BIT_DMA			(1<<9)
-/* need clear transfer mode register before send cmd */
-#define SDHCI_QUIRK2_CLEAR_TRANSFERMODE_REG_BEFORE_CMD	(1<<10)
-/* Capability register bit-63 indicates HS400 support */
-#define SDHCI_QUIRK2_CAPS_BIT63_FOR_HS400		(1<<11)
-/* forced tuned clock */
-#define SDHCI_QUIRK2_TUNING_WORK_AROUND			(1<<12)
-/* disable the block count for single block transactions */
-#define SDHCI_QUIRK2_SUPPORT_SINGLE			(1<<13)
-
-	int irq;		/* Device IRQ */
-	void __iomem *ioaddr;	/* Mapped address */
-
-	const struct sdhci_ops *ops;	/* Low level hw interface */
-
-	/* Internal data */
-	struct mmc_host *mmc;	/* MMC structure */
-	u64 dma_mask;		/* custom DMA mask */
-
-#if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE)
-	struct led_classdev led;	/* LED control */
-	char led_name[32];
-#endif
-
-	spinlock_t lock;	/* Mutex */
-
-	int flags;		/* Host attributes */
-#define SDHCI_USE_SDMA		(1<<0)	/* Host is SDMA capable */
-#define SDHCI_USE_ADMA		(1<<1)	/* Host is ADMA capable */
-#define SDHCI_REQ_USE_DMA	(1<<2)	/* Use DMA for this req. */
-#define SDHCI_DEVICE_DEAD	(1<<3)	/* Device unresponsive */
-#define SDHCI_SDR50_NEEDS_TUNING (1<<4)	/* SDR50 needs tuning */
-#define SDHCI_NEEDS_RETUNING	(1<<5)	/* Host needs retuning */
-#define SDHCI_AUTO_CMD12	(1<<6)	/* Auto CMD12 support */
-#define SDHCI_AUTO_CMD23	(1<<7)	/* Auto CMD23 support */
-#define SDHCI_PV_ENABLED	(1<<8)	/* Preset value enabled */
-#define SDHCI_SDIO_IRQ_ENABLED	(1<<9)	/* SDIO irq enabled */
-#define SDHCI_SDR104_NEEDS_TUNING (1<<10)	/* SDR104/HS200 needs tuning */
-#define SDHCI_USING_RETUNING_TIMER (1<<11)	/* Host is using a retuning timer for the card */
-#define SDHCI_USE_64_BIT_DMA	(1<<12)	/* Use 64-bit DMA */
-#define SDHCI_HS400_TUNING	(1<<13)	/* Tuning for HS400 */
-
-	unsigned int version;	/* SDHCI spec. version */
-
-	unsigned int max_clk;	/* Max possible freq (MHz) */
-	unsigned int timeout_clk;	/* Timeout freq (KHz) */
-	unsigned int clk_mul;	/* Clock Muliplier value */
-
-	unsigned int clock;	/* Current clock (MHz) */
-	u8 pwr;			/* Current voltage */
-
-	bool runtime_suspended;	/* Host is runtime suspended */
-	bool bus_on;		/* Bus power prevents runtime suspend */
-	bool preset_enabled;	/* Preset is enabled */
-
-	struct mmc_request *mrq;	/* Current request */
-	struct mmc_command *cmd;	/* Current command */
-	struct mmc_data *data;	/* Current data request */
-	unsigned int data_early:1;	/* Data finished before cmd */
-	unsigned int busy_handle:1;	/* Handling the order of Busy-end */
-
-	struct sg_mapping_iter sg_miter;	/* SG state for PIO */
-	unsigned int blocks;	/* remaining PIO blocks */
-
-	int sg_count;		/* Mapped sg entries */
-
-	void *adma_table;	/* ADMA descriptor table */
-	void *align_buffer;	/* Bounce buffer */
-
-	size_t adma_table_sz;	/* ADMA descriptor table size */
-	size_t align_buffer_sz;	/* Bounce buffer size */
-
-	dma_addr_t adma_addr;	/* Mapped ADMA descr. table */
-	dma_addr_t align_addr;	/* Mapped bounce buffer */
-
-	unsigned int desc_sz;	/* ADMA descriptor size */
-	unsigned int align_sz;	/* ADMA alignment */
-	unsigned int align_mask;	/* ADMA alignment mask */
-
-	struct tasklet_struct finish_tasklet;	/* Tasklet structures */
-
-	struct timer_list timer;	/* Timer for timeouts */
-
-	u32 caps;		/* Alternative CAPABILITY_0 */
-	u32 caps1;		/* Alternative CAPABILITY_1 */
-
-	unsigned int            ocr_avail_sdio;	/* OCR bit masks */
-	unsigned int            ocr_avail_sd;
-	unsigned int            ocr_avail_mmc;
-	u32 ocr_mask;		/* available voltages */
-
-	unsigned		timing;		/* Current timing */
-
-	u32			thread_isr;
-
-	/* cached registers */
-	u32			ier;
-
-	wait_queue_head_t	buf_ready_int;	/* Waitqueue for Buffer Read Ready interrupt */
-	unsigned int		tuning_done;	/* Condition flag set when CMD19 succeeds */
-
-	unsigned int		tuning_count;	/* Timer count for re-tuning */
-	unsigned int		tuning_mode;	/* Re-tuning mode supported by host */
-#define SDHCI_TUNING_MODE_1	0
-	struct timer_list	tuning_timer;	/* Timer for tuning */
-
-	struct sdhci_host_next	next_data;
-	unsigned long private[0] ____cacheline_aligned;
-};
-#endif /* LINUX_MMC_SDHCI_H */
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index f279d9c..2782df4 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -474,16 +474,15 @@ struct zone {
 	unsigned long		wait_table_bits;
 
 	ZONE_PADDING(_pad1_)
-
-	/* Write-intensive fields used from the page allocator */
-	spinlock_t		lock;
-
 	/* free areas of different sizes */
 	struct free_area	free_area[MAX_ORDER];
 
 	/* zone flags, see below */
 	unsigned long		flags;
 
+	/* Write-intensive fields used from the page allocator */
+	spinlock_t		lock;
+
 	ZONE_PADDING(_pad2_)
 
 	/* Write-intensive fields used by page reclaim */
diff --git a/include/linux/module.h b/include/linux/module.h
index 42999fe..b03485b 100644
--- a/include/linux/module.h
+++ b/include/linux/module.h
@@ -344,6 +344,10 @@ struct module {
 	unsigned long *ftrace_callsites;
 #endif
 
+#ifdef CONFIG_LIVEPATCH
+	bool klp_alive;
+#endif
+
 #ifdef CONFIG_MODULE_UNLOAD
 	/* What modules depend on me? */
 	struct list_head source_list;
diff --git a/include/linux/moduleloader.h b/include/linux/moduleloader.h
index f755626..4d0cb9b 100644
--- a/include/linux/moduleloader.h
+++ b/include/linux/moduleloader.h
@@ -84,4 +84,12 @@ void module_arch_cleanup(struct module *mod);
 
 /* Any cleanup before freeing mod->module_init */
 void module_arch_freeing_init(struct module *mod);
+
+#ifdef CONFIG_KASAN
+#include <linux/kasan.h>
+#define MODULE_ALIGN (PAGE_SIZE << KASAN_SHADOW_SCALE_SHIFT)
+#else
+#define MODULE_ALIGN PAGE_SIZE
+#endif
+
 #endif
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 5897b4e..2787388 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -965,9 +965,12 @@ typedef u16 (*select_queue_fallback_t)(struct net_device *dev,
  *	Used to add FDB entries to dump requests. Implementers should add
  *	entries to skb and update idx with the number of entries.
  *
- * int (*ndo_bridge_setlink)(struct net_device *dev, struct nlmsghdr *nlh)
+ * int (*ndo_bridge_setlink)(struct net_device *dev, struct nlmsghdr *nlh,
+ *			     u16 flags)
  * int (*ndo_bridge_getlink)(struct sk_buff *skb, u32 pid, u32 seq,
  *			     struct net_device *dev, u32 filter_mask)
+ * int (*ndo_bridge_dellink)(struct net_device *dev, struct nlmsghdr *nlh,
+ *			     u16 flags);
  *
  * int (*ndo_change_carrier)(struct net_device *dev, bool new_carrier);
  *	Called to change device carrier. Soft-devices (like dummy, team, etc)
@@ -2182,6 +2185,12 @@ void netdev_freemem(struct net_device *dev);
 void synchronize_net(void);
 int init_dummy_netdev(struct net_device *dev);
 
+DECLARE_PER_CPU(int, xmit_recursion);
+static inline int dev_recursion_level(void)
+{
+	return this_cpu_read(xmit_recursion);
+}
+
 struct net_device *dev_get_by_index(struct net *net, int ifindex);
 struct net_device *__dev_get_by_index(struct net *net, int ifindex);
 struct net_device *dev_get_by_index_rcu(struct net *net, int ifindex);
@@ -2342,6 +2351,7 @@ struct gro_remcsum {
 
 static inline void skb_gro_remcsum_init(struct gro_remcsum *grc)
 {
+	grc->offset = 0;
 	grc->delta = 0;
 }
 
diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h
index 2f77e0c..b01ccf3 100644
--- a/include/linux/nfs_fs.h
+++ b/include/linux/nfs_fs.h
@@ -343,6 +343,7 @@ extern struct inode *nfs_fhget(struct super_block *, struct nfs_fh *,
 extern int nfs_refresh_inode(struct inode *, struct nfs_fattr *);
 extern int nfs_post_op_update_inode(struct inode *inode, struct nfs_fattr *fattr);
 extern int nfs_post_op_update_inode_force_wcc(struct inode *inode, struct nfs_fattr *fattr);
+extern int nfs_post_op_update_inode_force_wcc_locked(struct inode *inode, struct nfs_fattr *fattr);
 extern int nfs_getattr(struct vfsmount *, struct dentry *, struct kstat *);
 extern void nfs_access_add_cache(struct inode *, struct nfs_access_entry *);
 extern void nfs_access_set_mask(struct nfs_access_entry *, u32);
@@ -355,8 +356,9 @@ extern int nfs_revalidate_inode(struct nfs_server *server, struct inode *inode);
 extern int nfs_revalidate_inode_rcu(struct nfs_server *server, struct inode *inode);
 extern int __nfs_revalidate_inode(struct nfs_server *, struct inode *);
 extern int nfs_revalidate_mapping(struct inode *inode, struct address_space *mapping);
+extern int nfs_revalidate_mapping_protected(struct inode *inode, struct address_space *mapping);
 extern int nfs_setattr(struct dentry *, struct iattr *);
-extern void nfs_setattr_update_inode(struct inode *inode, struct iattr *attr);
+extern void nfs_setattr_update_inode(struct inode *inode, struct iattr *attr, struct nfs_fattr *);
 extern void nfs_setsecurity(struct inode *inode, struct nfs_fattr *fattr,
 				struct nfs4_label *label);
 extern struct nfs_open_context *get_nfs_open_context(struct nfs_open_context *ctx);
@@ -369,6 +371,7 @@ extern struct nfs_lock_context *nfs_get_lock_context(struct nfs_open_context *ct
 extern void nfs_put_lock_context(struct nfs_lock_context *l_ctx);
 extern u64 nfs_compat_user_ino64(u64 fileid);
 extern void nfs_fattr_init(struct nfs_fattr *fattr);
+extern void nfs_fattr_set_barrier(struct nfs_fattr *fattr);
 extern unsigned long nfs_inc_attr_generation_counter(void);
 
 extern struct nfs_fattr *nfs_alloc_fattr(void);
diff --git a/include/linux/of_device.h b/include/linux/of_device.h
index ef37021..22801b1 100644
--- a/include/linux/of_device.h
+++ b/include/linux/of_device.h
@@ -53,6 +53,7 @@ static inline struct device_node *of_cpu_device_node_get(int cpu)
 	return of_node_get(cpu_dev->of_node);
 }
 
+void of_dma_configure(struct device *dev, struct device_node *np);
 #else /* CONFIG_OF */
 
 static inline int of_driver_match_device(struct device *dev,
@@ -90,6 +91,8 @@ static inline struct device_node *of_cpu_device_node_get(int cpu)
 {
 	return NULL;
 }
+static inline void of_dma_configure(struct device *dev, struct device_node *np)
+{}
 #endif /* CONFIG_OF */
 
 #endif /* _LINUX_OF_DEVICE_H */
diff --git a/include/linux/of_iommu.h b/include/linux/of_iommu.h
index 16c7554..ffbe470 100644
--- a/include/linux/of_iommu.h
+++ b/include/linux/of_iommu.h
@@ -12,7 +12,8 @@ extern int of_get_dma_window(struct device_node *dn, const char *prefix,
 			     size_t *size);
 
 extern void of_iommu_init(void);
-extern struct iommu_ops *of_iommu_configure(struct device *dev);
+extern struct iommu_ops *of_iommu_configure(struct device *dev,
+					struct device_node *master_np);
 
 #else
 
@@ -24,7 +25,8 @@ static inline int of_get_dma_window(struct device_node *dn, const char *prefix,
 }
 
 static inline void of_iommu_init(void) { }
-static inline struct iommu_ops *of_iommu_configure(struct device *dev)
+static inline struct iommu_ops *of_iommu_configure(struct device *dev,
+					 struct device_node *master_np)
 {
 	return NULL;
 }
diff --git a/include/linux/of_pci.h b/include/linux/of_pci.h
index ce0e5ab..29fd3fe 100644
--- a/include/linux/of_pci.h
+++ b/include/linux/of_pci.h
@@ -16,6 +16,7 @@ int of_pci_get_devfn(struct device_node *np);
 int of_irq_parse_and_map_pci(const struct pci_dev *dev, u8 slot, u8 pin);
 int of_pci_parse_bus_range(struct device_node *node, struct resource *res);
 int of_get_pci_domain_nr(struct device_node *node);
+void of_pci_dma_configure(struct pci_dev *pci_dev);
 #else
 static inline int of_irq_parse_pci(const struct pci_dev *pdev, struct of_phandle_args *out_irq)
 {
@@ -50,6 +51,8 @@ of_get_pci_domain_nr(struct device_node *node)
 {
 	return -1;
 }
+
+static inline void of_pci_dma_configure(struct pci_dev *pci_dev) { }
 #endif
 
 #if defined(CONFIG_OF_ADDRESS)
diff --git a/include/linux/of_platform.h b/include/linux/of_platform.h
index 8a860f0..611a6911 100644
--- a/include/linux/of_platform.h
+++ b/include/linux/of_platform.h
@@ -84,7 +84,7 @@ static inline int of_platform_populate(struct device_node *root,
 static inline void of_platform_depopulate(struct device *parent) { }
 #endif
 
-#ifdef CONFIG_OF_DYNAMIC
+#if defined(CONFIG_OF_DYNAMIC) && defined(CONFIG_OF_ADDRESS)
 extern void of_platform_register_reconfig_notifier(void);
 #else
 static inline void of_platform_register_reconfig_notifier(void) { }
diff --git a/include/linux/pci-acpi.h b/include/linux/pci-acpi.h
index 24c7728..a965efa 100644
--- a/include/linux/pci-acpi.h
+++ b/include/linux/pci-acpi.h
@@ -77,6 +77,11 @@ static inline void acpiphp_remove_slots(struct pci_bus *bus) { }
 static inline void acpiphp_check_host_bridge(struct acpi_device *adev) { }
 #endif
 
+extern const u8 pci_acpi_dsm_uuid[];
+#define DEVICE_LABEL_DSM	0x07
+#define RESET_DELAY_DSM		0x08
+#define FUNCTION_DELAY_DSM	0x09
+
 #else	/* CONFIG_ACPI */
 static inline void acpi_pci_add_bus(struct pci_bus *bus) { }
 static inline void acpi_pci_remove_bus(struct pci_bus *bus) { }
diff --git a/include/linux/pci-aspm.h b/include/linux/pci-aspm.h
index 8af4610..207c561 100644
--- a/include/linux/pci-aspm.h
+++ b/include/linux/pci-aspm.h
@@ -29,7 +29,6 @@ void pcie_aspm_pm_state_change(struct pci_dev *pdev);
 void pcie_aspm_powersave_config_link(struct pci_dev *pdev);
 void pci_disable_link_state(struct pci_dev *pdev, int state);
 void pci_disable_link_state_locked(struct pci_dev *pdev, int state);
-void pcie_clear_aspm(struct pci_bus *bus);
 void pcie_no_aspm(void);
 #else
 static inline void pcie_aspm_init_link_state(struct pci_dev *pdev)
@@ -47,9 +46,6 @@ static inline void pcie_aspm_powersave_config_link(struct pci_dev *pdev)
 static inline void pci_disable_link_state(struct pci_dev *pdev, int state)
 {
 }
-static inline void pcie_clear_aspm(struct pci_bus *bus)
-{
-}
 static inline void pcie_no_aspm(void)
 {
 }
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 211e9da..e63112f 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -406,6 +406,7 @@ struct pci_host_bridge {
 	struct list_head windows;	/* resource_entry */
 	void (*release_fn)(struct pci_host_bridge *);
 	void *release_data;
+	unsigned int ignore_reset_delay:1;	/* for entire hierarchy */
 };
 
 #define	to_pci_host_bridge(n) container_of(n, struct pci_host_bridge, dev)
@@ -510,6 +511,9 @@ static inline struct pci_dev *pci_upstream_bridge(struct pci_dev *dev)
 	return dev->bus->self;
 }
 
+struct device *pci_get_host_bridge_device(struct pci_dev *dev);
+void pci_put_host_bridge_device(struct device *dev);
+
 #ifdef CONFIG_PCI_MSI
 static inline bool pci_dev_msi_enabled(struct pci_dev *pci_dev)
 {
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index e63c02a..38cff8f 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -2315,6 +2315,8 @@
 #define PCI_VENDOR_ID_CENATEK		0x16CA
 #define PCI_DEVICE_ID_CENATEK_IDE	0x0001
 
+#define PCI_VENDOR_ID_SYNOPSYS		0x16c3
+
 #define PCI_VENDOR_ID_VITESSE		0x1725
 #define PCI_DEVICE_ID_VITESSE_VSC7174	0x7174
 
diff --git a/include/linux/pinctrl/consumer.h b/include/linux/pinctrl/consumer.h
index 72c0415d..18eccef 100644
--- a/include/linux/pinctrl/consumer.h
+++ b/include/linux/pinctrl/consumer.h
@@ -82,7 +82,7 @@ static inline int pinctrl_gpio_direction_output(unsigned gpio)
 
 static inline struct pinctrl * __must_check pinctrl_get(struct device *dev)
 {
-	return ERR_PTR(-ENOSYS);
+	return NULL;
 }
 
 static inline void pinctrl_put(struct pinctrl *p)
@@ -93,7 +93,7 @@ static inline struct pinctrl_state * __must_check pinctrl_lookup_state(
 							struct pinctrl *p,
 							const char *name)
 {
-	return ERR_PTR(-ENOSYS);
+	return NULL;
 }
 
 static inline int pinctrl_select_state(struct pinctrl *p,
@@ -104,7 +104,7 @@ static inline int pinctrl_select_state(struct pinctrl *p,
 
 static inline struct pinctrl * __must_check devm_pinctrl_get(struct device *dev)
 {
-	return ERR_PTR(-ENOSYS);
+	return NULL;
 }
 
 static inline void devm_pinctrl_put(struct pinctrl *p)
diff --git a/include/linux/platform_data/hsmmc-omap.h b/include/linux/platform_data/hsmmc-omap.h
index 67bbcf0..8e981be 100644
--- a/include/linux/platform_data/hsmmc-omap.h
+++ b/include/linux/platform_data/hsmmc-omap.h
@@ -55,9 +55,6 @@ struct omap_hsmmc_platform_data {
 	u32 caps;	/* Used for the MMC driver on 2430 and later */
 	u32 pm_caps;	/* PM capabilities of the mmc */
 
-	/* switch pin can be for card detect (default) or card cover */
-	unsigned cover:1;
-
 	/* use the internal clock */
 	unsigned internal_clock:1;
 
@@ -73,7 +70,8 @@ struct omap_hsmmc_platform_data {
 #define HSMMC_HAS_HSPE_SUPPORT	(1 << 2)
 	unsigned features;
 
-	int switch_pin;			/* gpio (card detect) */
+	int gpio_cd;			/* gpio (card detect) */
+	int gpio_cod;			/* gpio (cover detect) */
 	int gpio_wp;			/* gpio (write protect) */
 
 	int (*set_power)(struct device *dev, int power_on, int vdd);
diff --git a/include/linux/power/charger-manager.h b/include/linux/power/charger-manager.h
index 416ebeb..eadf28c 100644
--- a/include/linux/power/charger-manager.h
+++ b/include/linux/power/charger-manager.h
@@ -242,7 +242,8 @@ struct charger_manager {
 	int emergency_stop;
 
 	char psy_name_buf[PSY_NAME_MAX + 1];
-	struct power_supply charger_psy;
+	struct power_supply_desc charger_psy_desc;
+	struct power_supply *charger_psy;
 
 	u64 charging_start_time;
 	u64 charging_end_time;
diff --git a/include/linux/power/max17042_battery.h b/include/linux/power/max17042_battery.h
index 89dd84f..cf112b4 100644
--- a/include/linux/power/max17042_battery.h
+++ b/include/linux/power/max17042_battery.h
@@ -126,7 +126,14 @@ enum max17047_register {
 	MAX17047_QRTbl30	= 0x42,
 };
 
-enum max170xx_chip_type {MAX17042, MAX17047};
+enum max170xx_chip_type {
+	MAXIM_DEVICE_TYPE_UNKNOWN	= 0,
+	MAXIM_DEVICE_TYPE_MAX17042,
+	MAXIM_DEVICE_TYPE_MAX17047,
+	MAXIM_DEVICE_TYPE_MAX17050,
+
+	MAXIM_DEVICE_TYPE_NUM
+};
 
 /*
  * used for setting a register to a desired value
diff --git a/include/linux/power_supply.h b/include/linux/power_supply.h
index 096dbce..75a1dd8 100644
--- a/include/linux/power_supply.h
+++ b/include/linux/power_supply.h
@@ -13,6 +13,7 @@
 #ifndef __LINUX_POWER_SUPPLY_H__
 #define __LINUX_POWER_SUPPLY_H__
 
+#include <linux/device.h>
 #include <linux/workqueue.h>
 #include <linux/leds.h>
 #include <linux/spinlock.h>
@@ -173,22 +174,32 @@ union power_supply_propval {
 	const char *strval;
 };
 
-struct device;
 struct device_node;
+struct power_supply;
 
-struct power_supply {
-	const char *name;
-	enum power_supply_type type;
-	enum power_supply_property *properties;
-	size_t num_properties;
+/* Run-time specific power supply configuration */
+struct power_supply_config {
+	struct device_node *of_node;
+	/* Driver private data */
+	void *drv_data;
 
 	char **supplied_to;
 	size_t num_supplicants;
+};
 
-	char **supplied_from;
-	size_t num_supplies;
-	struct device_node *of_node;
+/* Description of power supply */
+struct power_supply_desc {
+	const char *name;
+	enum power_supply_type type;
+	enum power_supply_property *properties;
+	size_t num_properties;
 
+	/*
+	 * Functions for drivers implementing power supply class.
+	 * These shouldn't be called directly by other drivers for accessing
+	 * this power supply. Instead use power_supply_*() functions (for
+	 * example power_supply_get_property()).
+	 */
 	int (*get_property)(struct power_supply *psy,
 			    enum power_supply_property psp,
 			    union power_supply_propval *val);
@@ -208,12 +219,27 @@ struct power_supply {
 	bool no_thermal;
 	/* For APM emulation, think legacy userspace. */
 	int use_for_apm;
+};
+
+struct power_supply {
+	const struct power_supply_desc *desc;
+
+	char **supplied_to;
+	size_t num_supplicants;
+
+	char **supplied_from;
+	size_t num_supplies;
+	struct device_node *of_node;
+
+	/* Driver private data */
+	void *drv_data;
 
 	/* private */
-	struct device *dev;
+	struct device dev;
 	struct work_struct changed_work;
 	spinlock_t changed_lock;
 	bool changed;
+	atomic_t use_cnt;
 #ifdef CONFIG_THERMAL
 	struct thermal_zone_device *tzd;
 	struct thermal_cooling_device *tcd;
@@ -256,6 +282,7 @@ extern struct atomic_notifier_head power_supply_notifier;
 extern int power_supply_reg_notifier(struct notifier_block *nb);
 extern void power_supply_unreg_notifier(struct notifier_block *nb);
 extern struct power_supply *power_supply_get_by_name(const char *name);
+extern void power_supply_put(struct power_supply *psy);
 #ifdef CONFIG_OF
 extern struct power_supply *power_supply_get_by_phandle(struct device_node *np,
 							const char *property);
@@ -274,13 +301,36 @@ extern int power_supply_is_system_supplied(void);
 static inline int power_supply_is_system_supplied(void) { return -ENOSYS; }
 #endif
 
-extern int power_supply_register(struct device *parent,
-				 struct power_supply *psy);
-extern int power_supply_register_no_ws(struct device *parent,
-				 struct power_supply *psy);
+extern int power_supply_get_property(struct power_supply *psy,
+			    enum power_supply_property psp,
+			    union power_supply_propval *val);
+extern int power_supply_set_property(struct power_supply *psy,
+			    enum power_supply_property psp,
+			    const union power_supply_propval *val);
+extern int power_supply_property_is_writeable(struct power_supply *psy,
+					enum power_supply_property psp);
+extern void power_supply_external_power_changed(struct power_supply *psy);
+
+extern struct power_supply *__must_check
+power_supply_register(struct device *parent,
+				 const struct power_supply_desc *desc,
+				 const struct power_supply_config *cfg);
+extern struct power_supply *__must_check
+power_supply_register_no_ws(struct device *parent,
+				 const struct power_supply_desc *desc,
+				 const struct power_supply_config *cfg);
+extern struct power_supply *__must_check
+devm_power_supply_register(struct device *parent,
+				 const struct power_supply_desc *desc,
+				 const struct power_supply_config *cfg);
+extern struct power_supply *__must_check
+devm_power_supply_register_no_ws(struct device *parent,
+				 const struct power_supply_desc *desc,
+				 const struct power_supply_config *cfg);
 extern void power_supply_unregister(struct power_supply *psy);
 extern int power_supply_powers(struct power_supply *psy, struct device *dev);
 
+extern void *power_supply_get_drvdata(struct power_supply *psy);
 /* For APM emulation, think legacy userspace. */
 extern struct class *power_supply_class;
 
diff --git a/include/linux/regulator/act8865.h b/include/linux/regulator/act8865.h
index b6c4909..15fa8f2 100644
--- a/include/linux/regulator/act8865.h
+++ b/include/linux/regulator/act8865.h
@@ -19,6 +19,19 @@
 #include <linux/regulator/machine.h>
 
 enum {
+	ACT8600_ID_DCDC1,
+	ACT8600_ID_DCDC2,
+	ACT8600_ID_DCDC3,
+	ACT8600_ID_SUDCDC4,
+	ACT8600_ID_LDO5,
+	ACT8600_ID_LDO6,
+	ACT8600_ID_LDO7,
+	ACT8600_ID_LDO8,
+	ACT8600_ID_LDO9,
+	ACT8600_ID_LDO10,
+};
+
+enum {
 	ACT8865_ID_DCDC1,
 	ACT8865_ID_DCDC2,
 	ACT8865_ID_DCDC3,
@@ -46,6 +59,7 @@ enum {
 };
 
 enum {
+	ACT8600,
 	ACT8865,
 	ACT8846,
 };
diff --git a/include/linux/regulator/consumer.h b/include/linux/regulator/consumer.h
index d17e1ff..f8a689e 100644
--- a/include/linux/regulator/consumer.h
+++ b/include/linux/regulator/consumer.h
@@ -114,7 +114,7 @@ struct regmap;
 #define REGULATOR_EVENT_OVER_TEMP		0x10
 #define REGULATOR_EVENT_FORCE_DISABLE		0x20
 #define REGULATOR_EVENT_VOLTAGE_CHANGE		0x40
-#define REGULATOR_EVENT_DISABLE 		0x80
+#define REGULATOR_EVENT_DISABLE			0x80
 #define REGULATOR_EVENT_PRE_VOLTAGE_CHANGE	0x100
 #define REGULATOR_EVENT_ABORT_VOLTAGE_CHANGE	0x200
 #define REGULATOR_EVENT_PRE_DISABLE		0x400
@@ -238,7 +238,7 @@ int regulator_get_current_limit(struct regulator *regulator);
 
 int regulator_set_mode(struct regulator *regulator, unsigned int mode);
 unsigned int regulator_get_mode(struct regulator *regulator);
-int regulator_set_optimum_mode(struct regulator *regulator, int load_uA);
+int regulator_set_load(struct regulator *regulator, int load_uA);
 
 int regulator_allow_bypass(struct regulator *regulator, bool allow);
 
@@ -252,8 +252,12 @@ int regulator_list_hardware_vsel(struct regulator *regulator,
 /* regulator notifier block */
 int regulator_register_notifier(struct regulator *regulator,
 			      struct notifier_block *nb);
+int devm_regulator_register_notifier(struct regulator *regulator,
+				     struct notifier_block *nb);
 int regulator_unregister_notifier(struct regulator *regulator,
 				struct notifier_block *nb);
+void devm_regulator_unregister_notifier(struct regulator *regulator,
+					struct notifier_block *nb);
 
 /* driver data - core doesn't touch */
 void *regulator_get_drvdata(struct regulator *regulator);
@@ -479,8 +483,7 @@ static inline unsigned int regulator_get_mode(struct regulator *regulator)
 	return REGULATOR_MODE_NORMAL;
 }
 
-static inline int regulator_set_optimum_mode(struct regulator *regulator,
-					int load_uA)
+static inline int regulator_set_load(struct regulator *regulator, int load_uA)
 {
 	return REGULATOR_MODE_NORMAL;
 }
@@ -515,12 +518,24 @@ static inline int regulator_register_notifier(struct regulator *regulator,
 	return 0;
 }
 
+static inline int devm_regulator_register_notifier(struct regulator *regulator,
+						   struct notifier_block *nb)
+{
+	return 0;
+}
+
 static inline int regulator_unregister_notifier(struct regulator *regulator,
 				struct notifier_block *nb)
 {
 	return 0;
 }
 
+static inline int devm_regulator_unregister_notifier(struct regulator *regulator,
+						     struct notifier_block *nb)
+{
+	return 0;
+}
+
 static inline void *regulator_get_drvdata(struct regulator *regulator)
 {
 	return NULL;
diff --git a/include/linux/regulator/driver.h b/include/linux/regulator/driver.h
index d4ad5b5..fffa688 100644
--- a/include/linux/regulator/driver.h
+++ b/include/linux/regulator/driver.h
@@ -98,6 +98,7 @@ struct regulator_linear_range {
  *	REGULATOR_STATUS value (or negative errno)
  * @get_optimum_mode: Get the most efficient operating mode for the regulator
  *                    when running with the specified parameters.
+ * @set_load: Set the load for the regulator.
  *
  * @set_bypass: Set the regulator in bypass mode.
  * @get_bypass: Get the regulator bypass mode state.
@@ -167,6 +168,8 @@ struct regulator_ops {
 	/* get most efficient regulator operating mode for load */
 	unsigned int (*get_optimum_mode) (struct regulator_dev *, int input_uV,
 					  int output_uV, int load_uA);
+	/* set the load on the regulator */
+	int (*set_load)(struct regulator_dev *, int load_uA);
 
 	/* control and report on bypass mode */
 	int (*set_bypass)(struct regulator_dev *dev, bool enable);
@@ -316,7 +319,7 @@ struct regulator_desc {
  * @driver_data: private regulator data
  * @of_node: OpenFirmware node to parse for device tree bindings (may be
  *           NULL).
- * @regmap: regmap to use for core regmap helpers if dev_get_regulator() is
+ * @regmap: regmap to use for core regmap helpers if dev_get_regmap() is
  *          insufficient.
  * @ena_gpio_initialized: GPIO controlling regulator enable was properly
  *                        initialized, meaning that >= 0 is a valid gpio
@@ -367,6 +370,7 @@ struct regulator_dev {
 	struct device dev;
 	struct regulation_constraints *constraints;
 	struct regulator *supply;	/* for tree */
+	const char *supply_name;
 	struct regmap *regmap;
 
 	struct delayed_work disable_work;
diff --git a/include/linux/rhashtable.h b/include/linux/rhashtable.h
index 5885127..d438eeb 100644
--- a/include/linux/rhashtable.h
+++ b/include/linux/rhashtable.h
@@ -54,10 +54,11 @@ struct rhash_head {
  * @buckets: size * hash buckets
  */
 struct bucket_table {
-	size_t				size;
-	unsigned int			locks_mask;
-	spinlock_t			*locks;
-	struct rhash_head __rcu		*buckets[];
+	size_t			size;
+	unsigned int		locks_mask;
+	spinlock_t		*locks;
+
+	struct rhash_head __rcu	*buckets[] ____cacheline_aligned_in_smp;
 };
 
 typedef u32 (*rht_hashfn_t)(const void *data, u32 len, u32 seed);
@@ -78,12 +79,6 @@ struct rhashtable;
  * @locks_mul: Number of bucket locks to allocate per cpu (default: 128)
  * @hashfn: Function to hash key
  * @obj_hashfn: Function to hash object
- * @grow_decision: If defined, may return true if table should expand
- * @shrink_decision: If defined, may return true if table should shrink
- *
- * Note: when implementing the grow and shrink decision function, min/max
- * shift must be enforced, otherwise, resizing watermarks they set may be
- * useless.
  */
 struct rhashtable_params {
 	size_t			nelem_hint;
@@ -97,10 +92,6 @@ struct rhashtable_params {
 	size_t			locks_mul;
 	rht_hashfn_t		hashfn;
 	rht_obj_hashfn_t	obj_hashfn;
-	bool			(*grow_decision)(const struct rhashtable *ht,
-						 size_t new_size);
-	bool			(*shrink_decision)(const struct rhashtable *ht,
-						   size_t new_size);
 };
 
 /**
@@ -192,9 +183,6 @@ int rhashtable_init(struct rhashtable *ht, struct rhashtable_params *params);
 void rhashtable_insert(struct rhashtable *ht, struct rhash_head *node);
 bool rhashtable_remove(struct rhashtable *ht, struct rhash_head *node);
 
-bool rht_grow_above_75(const struct rhashtable *ht, size_t new_size);
-bool rht_shrink_below_30(const struct rhashtable *ht, size_t new_size);
-
 int rhashtable_expand(struct rhashtable *ht);
 int rhashtable_shrink(struct rhashtable *ht);
 
diff --git a/include/linux/rtc.h b/include/linux/rtc.h
index dcad7ee..8dcf682 100644
--- a/include/linux/rtc.h
+++ b/include/linux/rtc.h
@@ -77,6 +77,7 @@ struct rtc_class_ops {
 	int (*read_alarm)(struct device *, struct rtc_wkalrm *);
 	int (*set_alarm)(struct device *, struct rtc_wkalrm *);
 	int (*proc)(struct device *, struct seq_file *);
+	int (*set_mmss64)(struct device *, time64_t secs);
 	int (*set_mmss)(struct device *, unsigned long secs);
 	int (*read_callback)(struct device *, int data);
 	int (*alarm_irq_enable)(struct device *, unsigned int enabled);
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 6d77432..f74d4cc 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -176,6 +176,14 @@ extern void get_iowait_load(unsigned long *nr_waiters, unsigned long *load);
 extern void calc_global_load(unsigned long ticks);
 extern void update_cpu_load_nohz(void);
 
+/* Notifier for when a task gets migrated to a new CPU */
+struct task_migration_notifier {
+	struct task_struct *task;
+	int from_cpu;
+	int to_cpu;
+};
+extern void register_task_migration_notifier(struct notifier_block *n);
+
 extern unsigned long get_parent_ip(unsigned long addr);
 
 extern void dump_cpu_task(int cpu);
@@ -329,6 +337,8 @@ extern asmlinkage void schedule_tail(struct task_struct *prev);
 extern void init_idle(struct task_struct *idle, int cpu);
 extern void init_idle_bootup_task(struct task_struct *idle);
 
+extern cpumask_var_t cpu_isolated_map;
+
 extern int runqueue_is_locked(int cpu);
 
 #if defined(CONFIG_SMP) && defined(CONFIG_NO_HZ_COMMON)
@@ -1115,15 +1125,28 @@ struct load_weight {
 };
 
 struct sched_avg {
+	u64 last_runnable_update;
+	s64 decay_count;
+	/*
+	 * utilization_avg_contrib describes the amount of time that a
+	 * sched_entity is running on a CPU. It is based on running_avg_sum
+	 * and is scaled in the range [0..SCHED_LOAD_SCALE].
+	 * load_avg_contrib described the amount of time that a sched_entity
+	 * is runnable on a rq. It is based on both runnable_avg_sum and the
+	 * weight of the task.
+	 */
+	unsigned long load_avg_contrib, utilization_avg_contrib;
 	/*
 	 * These sums represent an infinite geometric series and so are bound
 	 * above by 1024/(1-y).  Thus we only need a u32 to store them for all
 	 * choices of y < 1-2^(-32)*1024.
+	 * running_avg_sum reflects the time that the sched_entity is
+	 * effectively running on the CPU.
+	 * runnable_avg_sum represents the amount of time a sched_entity is on
+	 * a runqueue which includes the running time that is monitored by
+	 * running_avg_sum.
 	 */
-	u32 runnable_avg_sum, runnable_avg_period;
-	u64 last_runnable_update;
-	s64 decay_count;
-	unsigned long load_avg_contrib;
+	u32 runnable_avg_sum, avg_period, running_avg_sum;
 };
 
 #ifdef CONFIG_SCHEDSTATS
@@ -1625,11 +1648,11 @@ struct task_struct {
 
 	/*
 	 * numa_faults_locality tracks if faults recorded during the last
-	 * scan window were remote/local. The task scan period is adapted
-	 * based on the locality of the faults with different weights
-	 * depending on whether they were shared or private faults
+	 * scan window were remote/local or failed to migrate. The task scan
+	 * period is adapted based on the locality of the faults with different
+	 * weights depending on whether they were shared or private faults
 	 */
-	unsigned long numa_faults_locality[2];
+	unsigned long numa_faults_locality[3];
 
 	unsigned long numa_pages_migrated;
 #endif /* CONFIG_NUMA_BALANCING */
@@ -1719,6 +1742,7 @@ struct task_struct {
 #define TNF_NO_GROUP	0x02
 #define TNF_SHARED	0x04
 #define TNF_FAULT_LOCAL	0x08
+#define TNF_MIGRATE_FAIL 0x10
 
 #ifdef CONFIG_NUMA_BALANCING
 extern void task_numa_fault(int last_node, int node, int pages, int flags);
diff --git a/include/linux/seqlock.h b/include/linux/seqlock.h
index f5df8f6..5f68d0a 100644
--- a/include/linux/seqlock.h
+++ b/include/linux/seqlock.h
@@ -108,7 +108,7 @@ static inline unsigned __read_seqcount_begin(const seqcount_t *s)
 	unsigned ret;
 
 repeat:
-	ret = ACCESS_ONCE(s->sequence);
+	ret = READ_ONCE(s->sequence);
 	if (unlikely(ret & 1)) {
 		cpu_relax();
 		goto repeat;
@@ -127,7 +127,7 @@ repeat:
  */
 static inline unsigned raw_read_seqcount(const seqcount_t *s)
 {
-	unsigned ret = ACCESS_ONCE(s->sequence);
+	unsigned ret = READ_ONCE(s->sequence);
 	smp_rmb();
 	return ret;
 }
@@ -179,7 +179,7 @@ static inline unsigned read_seqcount_begin(const seqcount_t *s)
  */
 static inline unsigned raw_seqcount_begin(const seqcount_t *s)
 {
-	unsigned ret = ACCESS_ONCE(s->sequence);
+	unsigned ret = READ_ONCE(s->sequence);
 	smp_rmb();
 	return ret & ~1;
 }
diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h
index baf3e1d..d10965f 100644
--- a/include/linux/serial_core.h
+++ b/include/linux/serial_core.h
@@ -143,13 +143,13 @@ struct uart_port {
 	unsigned char		iotype;			/* io access style */
 	unsigned char		unused1;
 
-#define UPIO_PORT		(0)			/* 8b I/O port access */
-#define UPIO_HUB6		(1)			/* Hub6 ISA card */
-#define UPIO_MEM		(2)			/* 8b MMIO access */
-#define UPIO_MEM32		(3)			/* 32b little endian */
-#define UPIO_MEM32BE		(4)			/* 32b big endian */
-#define UPIO_AU			(5)			/* Au1x00 and RT288x type IO */
-#define UPIO_TSI		(6)			/* Tsi108/109 type IO */
+#define UPIO_PORT		(SERIAL_IO_PORT)	/* 8b I/O port access */
+#define UPIO_HUB6		(SERIAL_IO_HUB6)	/* Hub6 ISA card */
+#define UPIO_MEM		(SERIAL_IO_MEM)		/* 8b MMIO access */
+#define UPIO_MEM32		(SERIAL_IO_MEM32)	/* 32b little endian */
+#define UPIO_AU			(SERIAL_IO_AU)		/* Au1x00 and RT288x type IO */
+#define UPIO_TSI		(SERIAL_IO_TSI)		/* Tsi108/109 type IO */
+#define UPIO_MEM32BE		(SERIAL_IO_MEM32BE)	/* 32b big endian */
 
 	unsigned int		read_status_mask;	/* driver specific */
 	unsigned int		ignore_status_mask;	/* driver specific */
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 30007af..f54d665 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -948,6 +948,13 @@ static inline void skb_copy_hash(struct sk_buff *to, const struct sk_buff *from)
 	to->l4_hash = from->l4_hash;
 };
 
+static inline void skb_sender_cpu_clear(struct sk_buff *skb)
+{
+#ifdef CONFIG_XPS
+	skb->sender_cpu = 0;
+#endif
+}
+
 #ifdef NET_SKBUFF_DATA_USES_OFFSET
 static inline unsigned char *skb_end_pointer(const struct sk_buff *skb)
 {
diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h
index ed9489d..d673072 100644
--- a/include/linux/spi/spi.h
+++ b/include/linux/spi/spi.h
@@ -162,8 +162,6 @@ struct spi_transfer;
  * @remove: Unbinds this driver from the spi device
  * @shutdown: Standard shutdown callback used during system state
  *	transitions such as powerdown/halt and kexec
- * @suspend: Standard suspend callback used during system state transitions
- * @resume: Standard resume callback used during system state transitions
  * @driver: SPI device drivers should initialize the name and owner
  *	field of this structure.
  *
@@ -184,8 +182,6 @@ struct spi_driver {
 	int			(*probe)(struct spi_device *spi);
 	int			(*remove)(struct spi_device *spi);
 	void			(*shutdown)(struct spi_device *spi);
-	int			(*suspend)(struct spi_device *spi, pm_message_t mesg);
-	int			(*resume)(struct spi_device *spi);
 	struct device_driver	driver;
 };
 
@@ -294,6 +290,8 @@ static inline void spi_unregister_driver(struct spi_driver *sdrv)
  *                    transfer_one_message are mutually exclusive; when both
  *                    are set, the generic subsystem does not call your
  *                    transfer_one callback.
+ * @handle_err: the subsystem calls the driver to handle an error that occurs
+ *		in the generic implementation of transfer_one_message().
  * @unprepare_message: undo any work done by prepare_message().
  * @cs_gpios: Array of GPIOs to use as chip select lines; one per CS
  *	number. Any individual value may be -ENOENT for CS lines that
@@ -448,6 +446,8 @@ struct spi_master {
 	void (*set_cs)(struct spi_device *spi, bool enable);
 	int (*transfer_one)(struct spi_master *master, struct spi_device *spi,
 			    struct spi_transfer *transfer);
+	void (*handle_err)(struct spi_master *master,
+			   struct spi_message *message);
 
 	/* gpio chip select */
 	int			*cs_gpios;
@@ -649,7 +649,7 @@ struct spi_transfer {
  * sequence completes.  On some systems, many such sequences can execute as
  * as single programmed DMA transfer.  On all systems, these messages are
  * queued, and might complete after transactions to other devices.  Messages
- * sent to a given spi_device are alway executed in FIFO order.
+ * sent to a given spi_device are always executed in FIFO order.
  *
  * The code that submits an spi_message (and its spi_transfers)
  * to the lower layers is responsible for managing its memory.
diff --git a/include/linux/stddef.h b/include/linux/stddef.h
index f4aec0e..076af43 100644
--- a/include/linux/stddef.h
+++ b/include/linux/stddef.h
@@ -19,3 +19,12 @@ enum {
 #define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER)
 #endif
 #endif
+
+/**
+ * offsetofend(TYPE, MEMBER)
+ *
+ * @TYPE: The type of the structure
+ * @MEMBER: The member within the structure to get the end offset of
+ */
+#define offsetofend(TYPE, MEMBER) \
+	(offsetof(TYPE, MEMBER)	+ sizeof(((TYPE *)0)->MEMBER))
diff --git a/include/linux/sunrpc/debug.h b/include/linux/sunrpc/debug.h
index c57d8ea..59a7889 100644
--- a/include/linux/sunrpc/debug.h
+++ b/include/linux/sunrpc/debug.h
@@ -60,17 +60,17 @@ struct rpc_xprt;
 #if IS_ENABLED(CONFIG_SUNRPC_DEBUG)
 void		rpc_register_sysctl(void);
 void		rpc_unregister_sysctl(void);
-int		sunrpc_debugfs_init(void);
+void		sunrpc_debugfs_init(void);
 void		sunrpc_debugfs_exit(void);
-int		rpc_clnt_debugfs_register(struct rpc_clnt *);
+void		rpc_clnt_debugfs_register(struct rpc_clnt *);
 void		rpc_clnt_debugfs_unregister(struct rpc_clnt *);
-int		rpc_xprt_debugfs_register(struct rpc_xprt *);
+void		rpc_xprt_debugfs_register(struct rpc_xprt *);
 void		rpc_xprt_debugfs_unregister(struct rpc_xprt *);
 #else
-static inline int
+static inline void
 sunrpc_debugfs_init(void)
 {
-	return 0;
+	return;
 }
 
 static inline void
@@ -79,10 +79,10 @@ sunrpc_debugfs_exit(void)
 	return;
 }
 
-static inline int
+static inline void
 rpc_clnt_debugfs_register(struct rpc_clnt *clnt)
 {
-	return 0;
+	return;
 }
 
 static inline void
@@ -91,10 +91,10 @@ rpc_clnt_debugfs_unregister(struct rpc_clnt *clnt)
 	return;
 }
 
-static inline int
+static inline void
 rpc_xprt_debugfs_register(struct rpc_xprt *xprt)
 {
-	return 0;
+	return;
 }
 
 static inline void
diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h
index ddad161..99382c0 100644
--- a/include/linux/sysfs.h
+++ b/include/linux/sysfs.h
@@ -57,6 +57,21 @@ do {							\
 #define sysfs_attr_init(attr) do {} while (0)
 #endif
 
+/**
+ * struct attribute_group - data structure used to declare an attribute group.
+ * @name:	Optional: Attribute group name
+ *		If specified, the attribute group will be created in
+ *		a new subdirectory with this name.
+ * @is_visible:	Optional: Function to return permissions associated with an
+ *		attribute of the group. Will be called repeatedly for each
+ *		attribute in the group. Only read/write permissions as well as
+ *		SYSFS_PREALLOC are accepted. Must return 0 if an attribute is
+ *		not visible. The returned value will replace static permissions
+ *		defined in struct attribute or struct bin_attribute.
+ * @attrs:	Pointer to NULL terminated list of attributes.
+ * @bin_attrs:	Pointer to NULL terminated list of binary attributes.
+ *		Either attrs or bin_attrs or both must be provided.
+ */
 struct attribute_group {
 	const char		*name;
 	umode_t			(*is_visible)(struct kobject *,
diff --git a/include/linux/thermal.h b/include/linux/thermal.h
index fc52e30..5eac316 100644
--- a/include/linux/thermal.h
+++ b/include/linux/thermal.h
@@ -314,6 +314,8 @@ void thermal_zone_of_sensor_unregister(struct device *dev,
 }
 
 #endif
+
+#if IS_ENABLED(CONFIG_THERMAL)
 struct thermal_zone_device *thermal_zone_device_register(const char *, int, int,
 		void *, struct thermal_zone_device_ops *,
 		const struct thermal_zone_params *, int, int);
@@ -340,8 +342,58 @@ struct thermal_instance *get_thermal_instance(struct thermal_zone_device *,
 		struct thermal_cooling_device *, int);
 void thermal_cdev_update(struct thermal_cooling_device *);
 void thermal_notify_framework(struct thermal_zone_device *, int);
-
-#ifdef CONFIG_NET
+#else
+static inline struct thermal_zone_device *thermal_zone_device_register(
+	const char *type, int trips, int mask, void *devdata,
+	struct thermal_zone_device_ops *ops,
+	const struct thermal_zone_params *tzp,
+	int passive_delay, int polling_delay)
+{ return ERR_PTR(-ENODEV); }
+static inline void thermal_zone_device_unregister(
+	struct thermal_zone_device *tz)
+{ }
+static inline int thermal_zone_bind_cooling_device(
+	struct thermal_zone_device *tz, int trip,
+	struct thermal_cooling_device *cdev,
+	unsigned long upper, unsigned long lower)
+{ return -ENODEV; }
+static inline int thermal_zone_unbind_cooling_device(
+	struct thermal_zone_device *tz, int trip,
+	struct thermal_cooling_device *cdev)
+{ return -ENODEV; }
+static inline void thermal_zone_device_update(struct thermal_zone_device *tz)
+{ }
+static inline struct thermal_cooling_device *
+thermal_cooling_device_register(char *type, void *devdata,
+	const struct thermal_cooling_device_ops *ops)
+{ return ERR_PTR(-ENODEV); }
+static inline struct thermal_cooling_device *
+thermal_of_cooling_device_register(struct device_node *np,
+	char *type, void *devdata, const struct thermal_cooling_device_ops *ops)
+{ return ERR_PTR(-ENODEV); }
+static inline void thermal_cooling_device_unregister(
+	struct thermal_cooling_device *cdev)
+{ }
+static inline struct thermal_zone_device *thermal_zone_get_zone_by_name(
+		const char *name)
+{ return ERR_PTR(-ENODEV); }
+static inline int thermal_zone_get_temp(
+		struct thermal_zone_device *tz, unsigned long *temp)
+{ return -ENODEV; }
+static inline int get_tz_trend(struct thermal_zone_device *tz, int trip)
+{ return -ENODEV; }
+static inline struct thermal_instance *
+get_thermal_instance(struct thermal_zone_device *tz,
+	struct thermal_cooling_device *cdev, int trip)
+{ return ERR_PTR(-ENODEV); }
+static inline void thermal_cdev_update(struct thermal_cooling_device *cdev)
+{ }
+static inline void thermal_notify_framework(struct thermal_zone_device *tz,
+	int trip)
+{ }
+#endif /* CONFIG_THERMAL */
+
+#if defined(CONFIG_NET) && IS_ENABLED(CONFIG_THERMAL)
 extern int thermal_generate_netlink_event(struct thermal_zone_device *tz,
 						enum events event);
 #else
diff --git a/include/linux/tick.h b/include/linux/tick.h
index 9c085dc..f8492da5 100644
--- a/include/linux/tick.h
+++ b/include/linux/tick.h
@@ -1,7 +1,5 @@
-/*  linux/include/linux/tick.h
- *
- *  This file contains the structure definitions for tick related functions
- *
+/*
+ * Tick related global functions
  */
 #ifndef _LINUX_TICK_H
 #define _LINUX_TICK_H
@@ -9,149 +7,99 @@
 #include <linux/clockchips.h>
 #include <linux/irqflags.h>
 #include <linux/percpu.h>
-#include <linux/hrtimer.h>
 #include <linux/context_tracking_state.h>
 #include <linux/cpumask.h>
 #include <linux/sched.h>
 
 #ifdef CONFIG_GENERIC_CLOCKEVENTS
-
-enum tick_device_mode {
-	TICKDEV_MODE_PERIODIC,
-	TICKDEV_MODE_ONESHOT,
-};
-
-struct tick_device {
-	struct clock_event_device *evtdev;
-	enum tick_device_mode mode;
-};
-
-enum tick_nohz_mode {
-	NOHZ_MODE_INACTIVE,
-	NOHZ_MODE_LOWRES,
-	NOHZ_MODE_HIGHRES,
-};
-
-/**
- * struct tick_sched - sched tick emulation and no idle tick control/stats
- * @sched_timer:	hrtimer to schedule the periodic tick in high
- *			resolution mode
- * @last_tick:		Store the last tick expiry time when the tick
- *			timer is modified for nohz sleeps. This is necessary
- *			to resume the tick timer operation in the timeline
- *			when the CPU returns from nohz sleep.
- * @tick_stopped:	Indicator that the idle tick has been stopped
- * @idle_jiffies:	jiffies at the entry to idle for idle time accounting
- * @idle_calls:		Total number of idle calls
- * @idle_sleeps:	Number of idle calls, where the sched tick was stopped
- * @idle_entrytime:	Time when the idle call was entered
- * @idle_waketime:	Time when the idle was interrupted
- * @idle_exittime:	Time when the idle state was left
- * @idle_sleeptime:	Sum of the time slept in idle with sched tick stopped
- * @iowait_sleeptime:	Sum of the time slept in idle with sched tick stopped, with IO outstanding
- * @sleep_length:	Duration of the current idle sleep
- * @do_timer_lst:	CPU was the last one doing do_timer before going idle
- */
-struct tick_sched {
-	struct hrtimer			sched_timer;
-	unsigned long			check_clocks;
-	enum tick_nohz_mode		nohz_mode;
-	ktime_t				last_tick;
-	int				inidle;
-	int				tick_stopped;
-	unsigned long			idle_jiffies;
-	unsigned long			idle_calls;
-	unsigned long			idle_sleeps;
-	int				idle_active;
-	ktime_t				idle_entrytime;
-	ktime_t				idle_waketime;
-	ktime_t				idle_exittime;
-	ktime_t				idle_sleeptime;
-	ktime_t				iowait_sleeptime;
-	ktime_t				sleep_length;
-	unsigned long			last_jiffies;
-	unsigned long			next_jiffies;
-	ktime_t				idle_expires;
-	int				do_timer_last;
-};
-
 extern void __init tick_init(void);
-extern int tick_is_oneshot_available(void);
-extern struct tick_device *tick_get_device(int cpu);
-
 extern void tick_freeze(void);
 extern void tick_unfreeze(void);
+/* Should be core only, but ARM BL switcher requires it */
+extern void tick_suspend_local(void);
+/* Should be core only, but XEN resume magic and ARM BL switcher require it */
+extern void tick_resume_local(void);
+extern void tick_handover_do_timer(void);
+extern void tick_cleanup_dead_cpu(int cpu);
+#else /* CONFIG_GENERIC_CLOCKEVENTS */
+static inline void tick_init(void) { }
+static inline void tick_freeze(void) { }
+static inline void tick_unfreeze(void) { }
+static inline void tick_suspend_local(void) { }
+static inline void tick_resume_local(void) { }
+static inline void tick_handover_do_timer(void) { }
+static inline void tick_cleanup_dead_cpu(int cpu) { }
+#endif /* !CONFIG_GENERIC_CLOCKEVENTS */
 
-# ifdef CONFIG_HIGH_RES_TIMERS
-extern int tick_init_highres(void);
-extern int tick_program_event(ktime_t expires, int force);
-extern void tick_setup_sched_timer(void);
-# endif
-
-# if defined CONFIG_NO_HZ_COMMON || defined CONFIG_HIGH_RES_TIMERS
-extern void tick_cancel_sched_timer(int cpu);
-# else
-static inline void tick_cancel_sched_timer(int cpu) { }
-# endif
-
-# ifdef CONFIG_GENERIC_CLOCKEVENTS_BROADCAST
-extern struct tick_device *tick_get_broadcast_device(void);
-extern struct cpumask *tick_get_broadcast_mask(void);
-
-#  ifdef CONFIG_TICK_ONESHOT
-extern struct cpumask *tick_get_broadcast_oneshot_mask(void);
-#  endif
-
-# endif /* BROADCAST */
-
-# ifdef CONFIG_TICK_ONESHOT
-extern void tick_clock_notify(void);
-extern int tick_check_oneshot_change(int allow_nohz);
-extern struct tick_sched *tick_get_tick_sched(int cpu);
+#ifdef CONFIG_TICK_ONESHOT
 extern void tick_irq_enter(void);
-extern int tick_oneshot_mode_active(void);
 #  ifndef arch_needs_cpu
 #   define arch_needs_cpu() (0)
 #  endif
 # else
-static inline void tick_clock_notify(void) { }
-static inline int tick_check_oneshot_change(int allow_nohz) { return 0; }
 static inline void tick_irq_enter(void) { }
-static inline int tick_oneshot_mode_active(void) { return 0; }
-# endif
+#endif
 
-#else /* CONFIG_GENERIC_CLOCKEVENTS */
-static inline void tick_init(void) { }
-static inline void tick_freeze(void) { }
-static inline void tick_unfreeze(void) { }
-static inline void tick_cancel_sched_timer(int cpu) { }
-static inline void tick_clock_notify(void) { }
-static inline int tick_check_oneshot_change(int allow_nohz) { return 0; }
-static inline void tick_irq_enter(void) { }
-static inline int tick_oneshot_mode_active(void) { return 0; }
-#endif /* !CONFIG_GENERIC_CLOCKEVENTS */
+#if defined(CONFIG_GENERIC_CLOCKEVENTS_BROADCAST) && defined(CONFIG_TICK_ONESHOT)
+extern void hotplug_cpu__broadcast_tick_pull(int dead_cpu);
+#else
+static inline void hotplug_cpu__broadcast_tick_pull(int dead_cpu) { }
+#endif
 
-# ifdef CONFIG_NO_HZ_COMMON
-DECLARE_PER_CPU(struct tick_sched, tick_cpu_sched);
+enum tick_broadcast_mode {
+	TICK_BROADCAST_OFF,
+	TICK_BROADCAST_ON,
+	TICK_BROADCAST_FORCE,
+};
+
+enum tick_broadcast_state {
+	TICK_BROADCAST_EXIT,
+	TICK_BROADCAST_ENTER,
+};
+
+#ifdef CONFIG_GENERIC_CLOCKEVENTS_BROADCAST
+extern void tick_broadcast_control(enum tick_broadcast_mode mode);
+#else
+static inline void tick_broadcast_control(enum tick_broadcast_mode mode) { }
+#endif /* BROADCAST */
+
+#if defined(CONFIG_GENERIC_CLOCKEVENTS_BROADCAST) && defined(CONFIG_TICK_ONESHOT)
+extern int tick_broadcast_oneshot_control(enum tick_broadcast_state state);
+#else
+static inline int tick_broadcast_oneshot_control(enum tick_broadcast_state state) { return 0; }
+#endif
 
-static inline int tick_nohz_tick_stopped(void)
+static inline void tick_broadcast_enable(void)
+{
+	tick_broadcast_control(TICK_BROADCAST_ON);
+}
+static inline void tick_broadcast_disable(void)
+{
+	tick_broadcast_control(TICK_BROADCAST_OFF);
+}
+static inline void tick_broadcast_force(void)
+{
+	tick_broadcast_control(TICK_BROADCAST_FORCE);
+}
+static inline int tick_broadcast_enter(void)
 {
-	return __this_cpu_read(tick_cpu_sched.tick_stopped);
+	return tick_broadcast_oneshot_control(TICK_BROADCAST_ENTER);
+}
+static inline void tick_broadcast_exit(void)
+{
+	tick_broadcast_oneshot_control(TICK_BROADCAST_EXIT);
 }
 
+#ifdef CONFIG_NO_HZ_COMMON
+extern int tick_nohz_tick_stopped(void);
 extern void tick_nohz_idle_enter(void);
 extern void tick_nohz_idle_exit(void);
 extern void tick_nohz_irq_exit(void);
 extern ktime_t tick_nohz_get_sleep_length(void);
 extern u64 get_cpu_idle_time_us(int cpu, u64 *last_update_time);
 extern u64 get_cpu_iowait_time_us(int cpu, u64 *last_update_time);
-
-# else /* !CONFIG_NO_HZ_COMMON */
-static inline int tick_nohz_tick_stopped(void)
-{
-	return 0;
-}
-
+#else /* !CONFIG_NO_HZ_COMMON */
+static inline int tick_nohz_tick_stopped(void) { return 0; }
 static inline void tick_nohz_idle_enter(void) { }
 static inline void tick_nohz_idle_exit(void) { }
 
@@ -163,7 +111,7 @@ static inline ktime_t tick_nohz_get_sleep_length(void)
 }
 static inline u64 get_cpu_idle_time_us(int cpu, u64 *unused) { return -1; }
 static inline u64 get_cpu_iowait_time_us(int cpu, u64 *unused) { return -1; }
-# endif /* !CONFIG_NO_HZ_COMMON */
+#endif /* !CONFIG_NO_HZ_COMMON */
 
 #ifdef CONFIG_NO_HZ_FULL
 extern bool tick_nohz_full_running;
diff --git a/include/linux/timekeeper_internal.h b/include/linux/timekeeper_internal.h
index 05af9a3..fb86963 100644
--- a/include/linux/timekeeper_internal.h
+++ b/include/linux/timekeeper_internal.h
@@ -16,16 +16,16 @@
  * @read:	Read function of @clock
  * @mask:	Bitmask for two's complement subtraction of non 64bit clocks
  * @cycle_last: @clock cycle value at last update
- * @mult:	NTP adjusted multiplier for scaled math conversion
+ * @mult:	(NTP adjusted) multiplier for scaled math conversion
  * @shift:	Shift value for scaled math conversion
  * @xtime_nsec: Shifted (fractional) nano seconds offset for readout
- * @base_mono:  ktime_t (nanoseconds) base time for readout
+ * @base:	ktime_t (nanoseconds) base time for readout
  *
  * This struct has size 56 byte on 64 bit. Together with a seqcount it
  * occupies a single 64byte cache line.
  *
  * The struct is separate from struct timekeeper as it is also used
- * for a fast NMI safe accessor to clock monotonic.
+ * for a fast NMI safe accessors.
  */
 struct tk_read_base {
 	struct clocksource	*clock;
@@ -35,12 +35,13 @@ struct tk_read_base {
 	u32			mult;
 	u32			shift;
 	u64			xtime_nsec;
-	ktime_t			base_mono;
+	ktime_t			base;
 };
 
 /**
  * struct timekeeper - Structure holding internal timekeeping values.
- * @tkr:		The readout base structure
+ * @tkr_mono:		The readout base structure for CLOCK_MONOTONIC
+ * @tkr_raw:		The readout base structure for CLOCK_MONOTONIC_RAW
  * @xtime_sec:		Current CLOCK_REALTIME time in seconds
  * @ktime_sec:		Current CLOCK_MONOTONIC time in seconds
  * @wall_to_monotonic:	CLOCK_REALTIME to CLOCK_MONOTONIC offset
@@ -48,7 +49,6 @@ struct tk_read_base {
  * @offs_boot:		Offset clock monotonic -> clock boottime
  * @offs_tai:		Offset clock monotonic -> clock tai
  * @tai_offset:		The current UTC to TAI offset in seconds
- * @base_raw:		Monotonic raw base time in ktime_t format
  * @raw_time:		Monotonic raw base time in timespec64 format
  * @cycle_interval:	Number of clock cycles in one NTP interval
  * @xtime_interval:	Number of clock shifted nano seconds in one NTP
@@ -76,7 +76,8 @@ struct tk_read_base {
  * used instead.
  */
 struct timekeeper {
-	struct tk_read_base	tkr;
+	struct tk_read_base	tkr_mono;
+	struct tk_read_base	tkr_raw;
 	u64			xtime_sec;
 	unsigned long		ktime_sec;
 	struct timespec64	wall_to_monotonic;
@@ -84,7 +85,6 @@ struct timekeeper {
 	ktime_t			offs_boot;
 	ktime_t			offs_tai;
 	s32			tai_offset;
-	ktime_t			base_raw;
 	struct timespec64	raw_time;
 
 	/* The following members are for timekeeping internal use */
diff --git a/include/linux/timekeeping.h b/include/linux/timekeeping.h
index 3eaae47..99176af 100644
--- a/include/linux/timekeeping.h
+++ b/include/linux/timekeeping.h
@@ -214,12 +214,18 @@ static inline u64 ktime_get_boot_ns(void)
 	return ktime_to_ns(ktime_get_boottime());
 }
 
+static inline u64 ktime_get_tai_ns(void)
+{
+	return ktime_to_ns(ktime_get_clocktai());
+}
+
 static inline u64 ktime_get_raw_ns(void)
 {
 	return ktime_to_ns(ktime_get_raw());
 }
 
 extern u64 ktime_get_mono_fast_ns(void);
+extern u64 ktime_get_raw_fast_ns(void);
 
 /*
  * Timespec interfaces utilizing the ktime based ones
@@ -242,6 +248,9 @@ static inline void timekeeping_clocktai(struct timespec *ts)
 /*
  * RTC specific
  */
+extern bool timekeeping_rtc_skipsuspend(void);
+extern bool timekeeping_rtc_skipresume(void);
+
 extern void timekeeping_inject_sleeptime64(struct timespec64 *delta);
 
 /*
@@ -253,17 +262,14 @@ extern void getnstime_raw_and_real(struct timespec *ts_raw,
 /*
  * Persistent clock related interfaces
  */
-extern bool persistent_clock_exist;
 extern int persistent_clock_is_local;
 
-static inline bool has_persistent_clock(void)
-{
-	return persistent_clock_exist;
-}
-
 extern void read_persistent_clock(struct timespec *ts);
+extern void read_persistent_clock64(struct timespec64 *ts);
 extern void read_boot_clock(struct timespec *ts);
+extern void read_boot_clock64(struct timespec64 *ts);
 extern int update_persistent_clock(struct timespec now);
+extern int update_persistent_clock64(struct timespec64 now);
 
 
 #endif
diff --git a/include/linux/uio.h b/include/linux/uio.h
index 07a0226..7188029 100644
--- a/include/linux/uio.h
+++ b/include/linux/uio.h
@@ -98,6 +98,8 @@ ssize_t iov_iter_get_pages_alloc(struct iov_iter *i, struct page ***pages,
 			size_t maxsize, size_t *start);
 int iov_iter_npages(const struct iov_iter *i, int maxpages);
 
+const void *dup_iter(struct iov_iter *new, struct iov_iter *old, gfp_t flags);
+
 static inline size_t iov_iter_count(struct iov_iter *i)
 {
 	return i->count;
diff --git a/include/linux/usb.h b/include/linux/usb.h
index 7ee1b5c..447fe29 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -205,6 +205,32 @@ void usb_put_intf(struct usb_interface *intf);
 #define USB_MAXINTERFACES	32
 #define USB_MAXIADS		(USB_MAXINTERFACES/2)
 
+/*
+ * USB Resume Timer: Every Host controller driver should drive the resume
+ * signalling on the bus for the amount of time defined by this macro.
+ *
+ * That way we will have a 'stable' behavior among all HCDs supported by Linux.
+ *
+ * Note that the USB Specification states we should drive resume for *at least*
+ * 20 ms, but it doesn't give an upper bound. This creates two possible
+ * situations which we want to avoid:
+ *
+ * (a) sometimes an msleep(20) might expire slightly before 20 ms, which causes
+ * us to fail USB Electrical Tests, thus failing Certification
+ *
+ * (b) Some (many) devices actually need more than 20 ms of resume signalling,
+ * and while we can argue that's against the USB Specification, we don't have
+ * control over which devices a certification laboratory will be using for
+ * certification. If CertLab uses a device which was tested against Windows and
+ * that happens to have relaxed resume signalling rules, we might fall into
+ * situations where we fail interoperability and electrical tests.
+ *
+ * In order to avoid both conditions, we're using a 40 ms resume timeout, which
+ * should cope with both LPJ calibration errors and devices not following every
+ * detail of the USB Specification.
+ */
+#define USB_RESUME_TIMEOUT	40 /* ms */
+
 /**
  * struct usb_interface_cache - long-term representation of a device interface
  * @num_altsetting: number of altsettings defined.
diff --git a/include/linux/usb/chipidea.h b/include/linux/usb/chipidea.h
index 535997a..ab94f78 100644
--- a/include/linux/usb/chipidea.h
+++ b/include/linux/usb/chipidea.h
@@ -19,6 +19,7 @@ struct ci_hdrc_platform_data {
 	enum usb_phy_interface phy_mode;
 	unsigned long	 flags;
 #define CI_HDRC_REGS_SHARED		BIT(0)
+#define CI_HDRC_SUPPORTS_RUNTIME_PM	BIT(2)
 #define CI_HDRC_DISABLE_STREAMING	BIT(3)
 	/*
 	 * Only set it when DCCPARAMS.DC==1 and DCCPARAMS.HC==1,
@@ -27,6 +28,7 @@ struct ci_hdrc_platform_data {
 #define CI_HDRC_DUAL_ROLE_NOT_OTG	BIT(4)
 #define CI_HDRC_IMX28_WRITE_FIX		BIT(5)
 #define CI_HDRC_FORCE_FULLSPEED		BIT(6)
+#define CI_HDRC_TURN_VBUS_EARLY_ON	BIT(7)
 	enum usb_dr_mode	dr_mode;
 #define CI_HDRC_CONTROLLER_RESET_EVENT		0
 #define CI_HDRC_CONTROLLER_STOPPED_EVENT	1
diff --git a/include/linux/usb/composite.h b/include/linux/usb/composite.h
index 3d87def..2511469 100644
--- a/include/linux/usb/composite.h
+++ b/include/linux/usb/composite.h
@@ -148,6 +148,7 @@ struct usb_os_desc_table {
  * @disable: (REQUIRED) Indicates the function should be disabled.  Reasons
  *	include host resetting or reconfiguring the gadget, and disconnection.
  * @setup: Used for interface-specific control requests.
+ * @req_match: Tests if a given class request can be handled by this function.
  * @suspend: Notifies functions when the host stops sending USB traffic.
  * @resume: Notifies functions when the host restarts USB traffic.
  * @get_status: Returns function status as a reply to
@@ -213,6 +214,8 @@ struct usb_function {
 	void			(*disable)(struct usb_function *);
 	int			(*setup)(struct usb_function *,
 					const struct usb_ctrlrequest *);
+	bool			(*req_match)(struct usb_function *,
+					const struct usb_ctrlrequest *);
 	void			(*suspend)(struct usb_function *);
 	void			(*resume)(struct usb_function *);
 
diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h
index e2f00fd..4f3dfb7 100644
--- a/include/linux/usb/gadget.h
+++ b/include/linux/usb/gadget.h
@@ -190,7 +190,7 @@ struct usb_ep {
  * @ep:the endpoint being configured
  * @maxpacket_limit:value of maximum packet size limit
  *
- * This function shoud be used only in UDC drivers to initialize endpoint
+ * This function should be used only in UDC drivers to initialize endpoint
  * (usually in probe function).
  */
 static inline void usb_ep_set_maxpacket_limit(struct usb_ep *ep,
@@ -474,6 +474,7 @@ struct usb_dcd_config_params {
 
 struct usb_gadget;
 struct usb_gadget_driver;
+struct usb_udc;
 
 /* the rest of the api to the controller hardware: device operations,
  * which don't involve endpoints (or i/o).
@@ -496,6 +497,7 @@ struct usb_gadget_ops {
 /**
  * struct usb_gadget - represents a usb slave device
  * @work: (internal use) Workqueue to be used for sysfs_notify()
+ * @udc: struct usb_udc pointer for this gadget
  * @ops: Function pointers used to access hardware-specific operations.
  * @ep0: Endpoint zero, used when reading or writing responses to
  *	driver setup() requests
@@ -545,6 +547,7 @@ struct usb_gadget_ops {
  */
 struct usb_gadget {
 	struct work_struct		work;
+	struct usb_udc			*udc;
 	/* readonly to gadget driver */
 	const struct usb_gadget_ops	*ops;
 	struct usb_ep			*ep0;
@@ -1029,6 +1032,10 @@ extern void usb_gadget_udc_reset(struct usb_gadget *gadget,
 extern void usb_gadget_giveback_request(struct usb_ep *ep,
 		struct usb_request *req);
 
+/*-------------------------------------------------------------------------*/
+
+/* utility to update vbus status for udc core, it may be scheduled */
+extern void usb_udc_vbus_handler(struct usb_gadget *gadget, bool status);
 
 /*-------------------------------------------------------------------------*/
 
diff --git a/include/linux/usb/msm_hsusb.h b/include/linux/usb/msm_hsusb.h
index b0a3924..7dbecf9 100644
--- a/include/linux/usb/msm_hsusb.h
+++ b/include/linux/usb/msm_hsusb.h
@@ -117,8 +117,6 @@ struct msm_otg_platform_data {
 	enum otg_control_type otg_control;
 	enum msm_usb_phy_type phy_type;
 	void (*setup_gpio)(enum usb_otg_state state);
-	int (*link_clk_reset)(struct clk *link_clk, bool assert);
-	int (*phy_clk_reset)(struct clk *phy_clk);
 };
 
 /**
@@ -128,7 +126,6 @@ struct msm_otg_platform_data {
  * @irq: IRQ number assigned for HSUSB controller.
  * @clk: clock struct of usb_hs_clk.
  * @pclk: clock struct of usb_hs_pclk.
- * @phy_reset_clk: clock struct of usb_phy_clk.
  * @core_clk: clock struct of usb_hs_core_clk.
  * @regs: ioremapped register base address.
  * @inputs: OTG state machine inputs(Id, SessValid etc).
@@ -148,7 +145,6 @@ struct msm_otg {
 	int irq;
 	struct clk *clk;
 	struct clk *pclk;
-	struct clk *phy_reset_clk;
 	struct clk *core_clk;
 	void __iomem *regs;
 #define ID		0
diff --git a/include/linux/usb/otg-fsm.h b/include/linux/usb/otg-fsm.h
index b6ba1bf..f728f18 100644
--- a/include/linux/usb/otg-fsm.h
+++ b/include/linux/usb/otg-fsm.h
@@ -53,6 +53,8 @@ enum otg_fsm_timer {
 	B_SE0_SRP,
 	B_SRP_FAIL,
 	A_WAIT_ENUM,
+	B_DATA_PLS,
+	B_SSEND_SRP,
 
 	NUM_OTG_FSM_TIMERS,
 };
diff --git a/include/linux/usb/renesas_usbhs.h b/include/linux/usb/renesas_usbhs.h
index 9fd9e48..f06529c 100644
--- a/include/linux/usb/renesas_usbhs.h
+++ b/include/linux/usb/renesas_usbhs.h
@@ -165,6 +165,8 @@ struct renesas_usbhs_driver_param {
 	 */
 	u32 has_otg:1; /* for controlling PWEN/EXTLP */
 	u32 has_sudmac:1; /* for SUDMAC */
+	u32 has_usb_dmac:1; /* for USB-DMAC */
+#define USBHS_USB_DMAC_XFER_SIZE	32	/* hardcode the xfer size */
 };
 
 #define USBHS_TYPE_R8A7790 1
diff --git a/include/linux/usb/serial.h b/include/linux/usb/serial.h
index 9bb547c..704a1ab 100644
--- a/include/linux/usb/serial.h
+++ b/include/linux/usb/serial.h
@@ -190,8 +190,7 @@ static inline void usb_set_serial_data(struct usb_serial *serial, void *data)
  * @num_ports: the number of different ports this device will have.
  * @bulk_in_size: minimum number of bytes to allocate for bulk-in buffer
  *	(0 = end-point size)
- * @bulk_out_size: minimum number of bytes to allocate for bulk-out buffer
- *	(0 = end-point size)
+ * @bulk_out_size: bytes to allocate for bulk-out buffer (0 = end-point size)
  * @calc_num_ports: pointer to a function to determine how many ports this
  *	device has dynamically.  It will be called after the probe()
  *	callback is called, but before attach()
diff --git a/include/linux/usb/usbnet.h b/include/linux/usb/usbnet.h
index d9a4905..6e0ce8c 100644
--- a/include/linux/usb/usbnet.h
+++ b/include/linux/usb/usbnet.h
@@ -227,9 +227,23 @@ struct skb_data {	/* skb->cb is one of these */
 	struct urb		*urb;
 	struct usbnet		*dev;
 	enum skb_state		state;
-	size_t			length;
+	long			length;
+	unsigned long		packets;
 };
 
+/* Drivers that set FLAG_MULTI_PACKET must call this in their
+ * tx_fixup method before returning an skb.
+ */
+static inline void
+usbnet_set_skb_tx_stats(struct sk_buff *skb,
+			unsigned long packets, long bytes_delta)
+{
+	struct skb_data *entry = (struct skb_data *) skb->cb;
+
+	entry->packets = packets;
+	entry->length = bytes_delta;
+}
+
 extern int usbnet_open(struct net_device *net);
 extern int usbnet_stop(struct net_device *net);
 extern netdev_tx_t usbnet_start_xmit(struct sk_buff *skb,
diff --git a/include/linux/uwb/umc.h b/include/linux/uwb/umc.h
index ba82f03..0211229 100644
--- a/include/linux/uwb/umc.h
+++ b/include/linux/uwb/umc.h
@@ -87,8 +87,6 @@ struct umc_driver {
 
 	int  (*probe)(struct umc_dev *);
 	void (*remove)(struct umc_dev *);
-	int  (*suspend)(struct umc_dev *, pm_message_t state);
-	int  (*resume)(struct umc_dev *);
 	int  (*pre_reset)(struct umc_dev *);
 	int  (*post_reset)(struct umc_dev *);
 
diff --git a/include/linux/vfio.h b/include/linux/vfio.h
index 2d67b89..049b2f4 100644
--- a/include/linux/vfio.h
+++ b/include/linux/vfio.h
@@ -78,19 +78,6 @@ extern int vfio_register_iommu_driver(const struct vfio_iommu_driver_ops *ops);
 extern void vfio_unregister_iommu_driver(
 				const struct vfio_iommu_driver_ops *ops);
 
-/**
- * offsetofend(TYPE, MEMBER)
- *
- * @TYPE: The type of the structure
- * @MEMBER: The member within the structure to get the end offset of
- *
- * Simple helper macro for dealing with variable sized structures passed
- * from user space.  This allows us to easily determine if the provided
- * structure is sized to include various fields.
- */
-#define offsetofend(TYPE, MEMBER) \
-	(offsetof(TYPE, MEMBER)	+ sizeof(((TYPE *)0)->MEMBER))
-
 /*
  * External user API
  */
diff --git a/include/linux/vmalloc.h b/include/linux/vmalloc.h
index 7d7acb3..0ec5983 100644
--- a/include/linux/vmalloc.h
+++ b/include/linux/vmalloc.h
@@ -17,6 +17,7 @@ struct vm_area_struct;		/* vma defining user mapping in mm_types.h */
 #define VM_VPAGES		0x00000010	/* buffer for pages was vmalloc'ed */
 #define VM_UNINITIALIZED	0x00000020	/* vm_struct is not fully initialized */
 #define VM_NO_GUARD		0x00000040      /* don't add guard page */
+#define VM_KASAN		0x00000080      /* has allocated kasan shadow memory */
 /* bits [20..32] reserved for arch specific ioremap internals */
 
 /*
diff --git a/include/linux/vme.h b/include/linux/vme.h
index 8cd6f19..79242e9 100644
--- a/include/linux/vme.h
+++ b/include/linux/vme.h
@@ -137,6 +137,7 @@ ssize_t vme_master_read(struct vme_resource *, void *, size_t, loff_t);
 ssize_t vme_master_write(struct vme_resource *, void *, size_t, loff_t);
 unsigned int vme_master_rmw(struct vme_resource *, unsigned int, unsigned int,
 	unsigned int, loff_t);
+int vme_master_mmap(struct vme_resource *resource, struct vm_area_struct *vma);
 void vme_master_free(struct vme_resource *);
 
 struct vme_resource *vme_dma_request(struct vme_dev *, u32);
diff --git a/include/linux/workqueue.h b/include/linux/workqueue.h
index 74db135..deee212 100644
--- a/include/linux/workqueue.h
+++ b/include/linux/workqueue.h
@@ -70,7 +70,8 @@ enum {
 	/* data contains off-queue information when !WORK_STRUCT_PWQ */
 	WORK_OFFQ_FLAG_BASE	= WORK_STRUCT_COLOR_SHIFT,
 
-	WORK_OFFQ_CANCELING	= (1 << WORK_OFFQ_FLAG_BASE),
+	__WORK_OFFQ_CANCELING	= WORK_OFFQ_FLAG_BASE,
+	WORK_OFFQ_CANCELING	= (1 << __WORK_OFFQ_CANCELING),
 
 	/*
 	 * When a work item is off queue, its high bits point to the last
@@ -453,6 +454,7 @@ extern bool workqueue_congested(int cpu, struct workqueue_struct *wq);
 extern unsigned int work_busy(struct work_struct *work);
 extern __printf(1, 2) void set_worker_desc(const char *fmt, ...);
 extern void print_worker_info(const char *log_lvl, struct task_struct *task);
+extern void show_workqueue_state(void);
 
 /**
  * queue_work - queue work on a workqueue
diff --git a/include/linux/writeback.h b/include/linux/writeback.h
index 0004833..b2dd371e 100644
--- a/include/linux/writeback.h
+++ b/include/linux/writeback.h
@@ -130,6 +130,7 @@ extern int vm_dirty_ratio;
 extern unsigned long vm_dirty_bytes;
 extern unsigned int dirty_writeback_interval;
 extern unsigned int dirty_expire_interval;
+extern unsigned int dirtytime_expire_interval;
 extern int vm_highmem_is_dirtyable;
 extern int block_dump;
 extern int laptop_mode;
@@ -146,6 +147,8 @@ extern int dirty_ratio_handler(struct ctl_table *table, int write,
 extern int dirty_bytes_handler(struct ctl_table *table, int write,
 		void __user *buffer, size_t *lenp,
 		loff_t *ppos);
+int dirtytime_interval_handler(struct ctl_table *table, int write,
+			       void __user *buffer, size_t *lenp, loff_t *ppos);
 
 struct ctl_table;
 int dirty_writeback_centisecs_handler(struct ctl_table *, int,
diff --git a/include/media/atmel-isi.h b/include/media/atmel-isi.h
index c2e5703..6008b09 100644
--- a/include/media/atmel-isi.h
+++ b/include/media/atmel-isi.h
@@ -59,6 +59,10 @@
 #define		ISI_CFG1_FRATE_DIV_MASK		(7 << 8)
 #define ISI_CFG1_DISCR				(1 << 11)
 #define ISI_CFG1_FULL_MODE			(1 << 12)
+/* Definition for THMASK(ISI_V2) */
+#define		ISI_CFG1_THMASK_BEATS_4		(0 << 13)
+#define		ISI_CFG1_THMASK_BEATS_8		(1 << 13)
+#define		ISI_CFG1_THMASK_BEATS_16	(2 << 13)
 
 /* Bitfields in CFG2 */
 #define ISI_CFG2_GRAYSCALE			(1 << 13)
diff --git a/include/net/caif/cfpkt.h b/include/net/caif/cfpkt.h
index 1c1ad46..fe328c5 100644
--- a/include/net/caif/cfpkt.h
+++ b/include/net/caif/cfpkt.h
@@ -171,7 +171,7 @@ struct cfpkt *cfpkt_split(struct cfpkt *pkt, u16 pos);
  * @return    Checksum of buffer.
  */
 
-u16 cfpkt_iterate(struct cfpkt *pkt,
+int cfpkt_iterate(struct cfpkt *pkt,
 		u16 (*iter_func)(u16 chks, void *buf, u16 len),
 		u16 data);
 
diff --git a/include/net/dst.h b/include/net/dst.h
index a8ae4e7..0fb99a2 100644
--- a/include/net/dst.h
+++ b/include/net/dst.h
@@ -481,6 +481,7 @@ void dst_init(void);
 enum {
 	XFRM_LOOKUP_ICMP = 1 << 0,
 	XFRM_LOOKUP_QUEUE = 1 << 1,
+	XFRM_LOOKUP_KEEP_DST_REF = 1 << 2,
 };
 
 struct flowi;
diff --git a/include/net/ip.h b/include/net/ip.h
index 025c61c..6cc1eaf 100644
--- a/include/net/ip.h
+++ b/include/net/ip.h
@@ -453,22 +453,6 @@ static __inline__ void inet_reset_saddr(struct sock *sk)
 
 #endif
 
-static inline int sk_mc_loop(struct sock *sk)
-{
-	if (!sk)
-		return 1;
-	switch (sk->sk_family) {
-	case AF_INET:
-		return inet_sk(sk)->mc_loop;
-#if IS_ENABLED(CONFIG_IPV6)
-	case AF_INET6:
-		return inet6_sk(sk)->mc_loop;
-#endif
-	}
-	WARN_ON(1);
-	return 1;
-}
-
 bool ip_call_ra_chain(struct sk_buff *skb);
 
 /*
diff --git a/include/net/ip6_route.h b/include/net/ip6_route.h
index 1d09b46..eda131d 100644
--- a/include/net/ip6_route.h
+++ b/include/net/ip6_route.h
@@ -174,7 +174,8 @@ int ip6_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *));
 
 static inline int ip6_skb_dst_mtu(struct sk_buff *skb)
 {
-	struct ipv6_pinfo *np = skb->sk ? inet6_sk(skb->sk) : NULL;
+	struct ipv6_pinfo *np = skb->sk && !dev_recursion_level() ?
+				inet6_sk(skb->sk) : NULL;
 
 	return (np && np->pmtudisc >= IPV6_PMTUDISC_PROBE) ?
 	       skb_dst(skb)->dev->mtu : dst_mtu(skb_dst(skb));
diff --git a/include/net/netfilter/nf_log.h b/include/net/netfilter/nf_log.h
index 534e1f2..57639fc 100644
--- a/include/net/netfilter/nf_log.h
+++ b/include/net/netfilter/nf_log.h
@@ -79,6 +79,16 @@ void nf_log_packet(struct net *net,
 		   const struct nf_loginfo *li,
 		   const char *fmt, ...);
 
+__printf(8, 9)
+void nf_log_trace(struct net *net,
+		  u_int8_t pf,
+		  unsigned int hooknum,
+		  const struct sk_buff *skb,
+		  const struct net_device *in,
+		  const struct net_device *out,
+		  const struct nf_loginfo *li,
+		  const char *fmt, ...);
+
 struct nf_log_buf;
 
 struct nf_log_buf *nf_log_buf_open(void);
diff --git a/include/net/netfilter/nf_tables.h b/include/net/netfilter/nf_tables.h
index 9eaaa78..decb9a0 100644
--- a/include/net/netfilter/nf_tables.h
+++ b/include/net/netfilter/nf_tables.h
@@ -119,6 +119,22 @@ int nft_validate_data_load(const struct nft_ctx *ctx, enum nft_registers reg,
 			   const struct nft_data *data,
 			   enum nft_data_types type);
 
+
+/**
+ *	struct nft_userdata - user defined data associated with an object
+ *
+ *	@len: length of the data
+ *	@data: content
+ *
+ *	The presence of user data is indicated in an object specific fashion,
+ *	so a length of zero can't occur and the value "len" indicates data
+ *	of length len + 1.
+ */
+struct nft_userdata {
+	u8			len;
+	unsigned char		data[0];
+};
+
 /**
  *	struct nft_set_elem - generic representation of set elements
  *
@@ -380,7 +396,7 @@ static inline void *nft_expr_priv(const struct nft_expr *expr)
  *	@handle: rule handle
  *	@genmask: generation mask
  *	@dlen: length of expression data
- *	@ulen: length of user data (used for comments)
+ *	@udata: user data is appended to the rule
  *	@data: expression data
  */
 struct nft_rule {
@@ -388,7 +404,7 @@ struct nft_rule {
 	u64				handle:42,
 					genmask:2,
 					dlen:12,
-					ulen:8;
+					udata:1;
 	unsigned char			data[]
 		__attribute__((aligned(__alignof__(struct nft_expr))));
 };
@@ -476,7 +492,7 @@ static inline struct nft_expr *nft_expr_last(const struct nft_rule *rule)
 	return (struct nft_expr *)&rule->data[rule->dlen];
 }
 
-static inline void *nft_userdata(const struct nft_rule *rule)
+static inline struct nft_userdata *nft_userdata(const struct nft_rule *rule)
 {
 	return (void *)&rule->data[rule->dlen];
 }
diff --git a/include/net/sock.h b/include/net/sock.h
index ab186b1..e4079c2 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -1762,6 +1762,8 @@ struct dst_entry *__sk_dst_check(struct sock *sk, u32 cookie);
 
 struct dst_entry *sk_dst_check(struct sock *sk, u32 cookie);
 
+bool sk_mc_loop(struct sock *sk);
+
 static inline bool sk_can_gso(const struct sock *sk)
 {
 	return net_gso_ok(sk->sk_route_caps, sk->sk_gso_type);
diff --git a/include/net/vxlan.h b/include/net/vxlan.h
index eabd3a0..c73e7ab 100644
--- a/include/net/vxlan.h
+++ b/include/net/vxlan.h
@@ -91,6 +91,7 @@ struct vxlanhdr {
 
 #define VXLAN_N_VID     (1u << 24)
 #define VXLAN_VID_MASK  (VXLAN_N_VID - 1)
+#define VXLAN_VNI_MASK  (VXLAN_VID_MASK << 8)
 #define VXLAN_HLEN (sizeof(struct udphdr) + sizeof(struct vxlanhdr))
 
 struct vxlan_metadata {
diff --git a/include/scsi/scsi_eh.h b/include/scsi/scsi_eh.h
index 1e1421b..5a4bb5b 100644
--- a/include/scsi/scsi_eh.h
+++ b/include/scsi/scsi_eh.h
@@ -59,6 +59,7 @@ extern int scsi_get_sense_info_fld(const u8 * sense_buffer, int sb_len,
 				   u64 * info_out);
 
 extern void scsi_build_sense_buffer(int desc, u8 *buf, u8 key, u8 asc, u8 ascq);
+extern void scsi_set_sense_information(u8 *buf, u64 info);
 
 extern int scsi_ioctl_reset(struct scsi_device *, int __user *);
 
diff --git a/include/soc/at91/at91sam9_ddrsdr.h b/include/soc/at91/at91sam9_ddrsdr.h
index 0210797..dc10c52 100644
--- a/include/soc/at91/at91sam9_ddrsdr.h
+++ b/include/soc/at91/at91sam9_ddrsdr.h
@@ -92,7 +92,7 @@
 #define		AT91_DDRSDRC_UPD_MR	(3 << 20)	 /* Update load mode register and extended mode register */
 
 #define AT91_DDRSDRC_MDR	0x20	/* Memory Device Register */
-#define		AT91_DDRSDRC_MD		(3 << 0)		/* Memory Device Type */
+#define		AT91_DDRSDRC_MD		(7 << 0)	/* Memory Device Type */
 #define			AT91_DDRSDRC_MD_SDR		0
 #define			AT91_DDRSDRC_MD_LOW_POWER_SDR	1
 #define			AT91_DDRSDRC_MD_LOW_POWER_DDR	3
diff --git a/include/target/target_core_backend.h b/include/target/target_core_backend.h
index db81c65..d61be72 100644
--- a/include/target/target_core_backend.h
+++ b/include/target/target_core_backend.h
@@ -111,6 +111,7 @@ void	array_free(void *array, int n);
 void	target_core_setup_sub_cits(struct se_subsystem_api *);
 
 /* attribute helpers from target_core_device.c for backend drivers */
+bool	se_dev_check_wce(struct se_device *);
 int	se_dev_set_max_unmap_lba_count(struct se_device *, u32);
 int	se_dev_set_max_unmap_block_desc_count(struct se_device *, u32);
 int	se_dev_set_unmap_granularity(struct se_device *, u32);
diff --git a/include/trace/events/libata.h b/include/trace/events/libata.h
new file mode 100644
index 0000000..8b0fbd9
--- /dev/null
+++ b/include/trace/events/libata.h
@@ -0,0 +1,325 @@
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM libata
+
+#if !defined(_TRACE_LIBATA_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_LIBATA_H
+
+#include <linux/ata.h>
+#include <linux/libata.h>
+#include <linux/tracepoint.h>
+#include <linux/trace_seq.h>
+
+#define ata_opcode_name(opcode)	{ opcode, #opcode }
+#define show_opcode_name(val)					\
+	__print_symbolic(val,					\
+		 ata_opcode_name(ATA_CMD_DEV_RESET),		\
+		 ata_opcode_name(ATA_CMD_CHK_POWER),		\
+		 ata_opcode_name(ATA_CMD_STANDBY),		\
+		 ata_opcode_name(ATA_CMD_IDLE),			\
+		 ata_opcode_name(ATA_CMD_EDD),			\
+		 ata_opcode_name(ATA_CMD_DOWNLOAD_MICRO),	\
+		 ata_opcode_name(ATA_CMD_DOWNLOAD_MICRO_DMA),	\
+		 ata_opcode_name(ATA_CMD_NOP),			\
+		 ata_opcode_name(ATA_CMD_FLUSH),		\
+		 ata_opcode_name(ATA_CMD_FLUSH_EXT),		\
+		 ata_opcode_name(ATA_CMD_ID_ATA),		\
+		 ata_opcode_name(ATA_CMD_ID_ATAPI),		\
+		 ata_opcode_name(ATA_CMD_SERVICE),		\
+		 ata_opcode_name(ATA_CMD_READ),			\
+		 ata_opcode_name(ATA_CMD_READ_EXT),		\
+		 ata_opcode_name(ATA_CMD_READ_QUEUED),		\
+		 ata_opcode_name(ATA_CMD_READ_STREAM_EXT),	\
+		 ata_opcode_name(ATA_CMD_READ_STREAM_DMA_EXT),	\
+		 ata_opcode_name(ATA_CMD_WRITE),		\
+		 ata_opcode_name(ATA_CMD_WRITE_EXT),		\
+		 ata_opcode_name(ATA_CMD_WRITE_QUEUED),		\
+		 ata_opcode_name(ATA_CMD_WRITE_STREAM_EXT),	\
+		 ata_opcode_name(ATA_CMD_WRITE_STREAM_DMA_EXT), \
+		 ata_opcode_name(ATA_CMD_WRITE_FUA_EXT),	\
+		 ata_opcode_name(ATA_CMD_WRITE_QUEUED_FUA_EXT), \
+		 ata_opcode_name(ATA_CMD_FPDMA_READ),		\
+		 ata_opcode_name(ATA_CMD_FPDMA_WRITE),		\
+		 ata_opcode_name(ATA_CMD_FPDMA_SEND),		\
+		 ata_opcode_name(ATA_CMD_FPDMA_RECV),		\
+		 ata_opcode_name(ATA_CMD_PIO_READ),		\
+		 ata_opcode_name(ATA_CMD_PIO_READ_EXT),		\
+		 ata_opcode_name(ATA_CMD_PIO_WRITE),		\
+		 ata_opcode_name(ATA_CMD_PIO_WRITE_EXT),	\
+		 ata_opcode_name(ATA_CMD_READ_MULTI),		\
+		 ata_opcode_name(ATA_CMD_READ_MULTI_EXT),	\
+		 ata_opcode_name(ATA_CMD_WRITE_MULTI),		\
+		 ata_opcode_name(ATA_CMD_WRITE_MULTI_EXT),	\
+		 ata_opcode_name(ATA_CMD_WRITE_MULTI_FUA_EXT),	\
+		 ata_opcode_name(ATA_CMD_SET_FEATURES),		\
+		 ata_opcode_name(ATA_CMD_SET_MULTI),		\
+		 ata_opcode_name(ATA_CMD_PACKET),		\
+		 ata_opcode_name(ATA_CMD_VERIFY),		\
+		 ata_opcode_name(ATA_CMD_VERIFY_EXT),		\
+		 ata_opcode_name(ATA_CMD_WRITE_UNCORR_EXT),	\
+		 ata_opcode_name(ATA_CMD_STANDBYNOW1),		\
+		 ata_opcode_name(ATA_CMD_IDLEIMMEDIATE),	\
+		 ata_opcode_name(ATA_CMD_SLEEP),		\
+		 ata_opcode_name(ATA_CMD_INIT_DEV_PARAMS),	\
+		 ata_opcode_name(ATA_CMD_READ_NATIVE_MAX),	\
+		 ata_opcode_name(ATA_CMD_READ_NATIVE_MAX_EXT),	\
+		 ata_opcode_name(ATA_CMD_SET_MAX),		\
+		 ata_opcode_name(ATA_CMD_SET_MAX_EXT),		\
+		 ata_opcode_name(ATA_CMD_READ_LOG_EXT),		\
+		 ata_opcode_name(ATA_CMD_WRITE_LOG_EXT),	\
+		 ata_opcode_name(ATA_CMD_READ_LOG_DMA_EXT),	\
+		 ata_opcode_name(ATA_CMD_WRITE_LOG_DMA_EXT),	\
+		 ata_opcode_name(ATA_CMD_TRUSTED_NONDATA),	\
+		 ata_opcode_name(ATA_CMD_TRUSTED_RCV),		\
+		 ata_opcode_name(ATA_CMD_TRUSTED_RCV_DMA),	\
+		 ata_opcode_name(ATA_CMD_TRUSTED_SND),		\
+		 ata_opcode_name(ATA_CMD_TRUSTED_SND_DMA),	\
+		 ata_opcode_name(ATA_CMD_PMP_READ),		\
+		 ata_opcode_name(ATA_CMD_PMP_READ_DMA),		\
+		 ata_opcode_name(ATA_CMD_PMP_WRITE),		\
+		 ata_opcode_name(ATA_CMD_PMP_WRITE_DMA),	\
+		 ata_opcode_name(ATA_CMD_CONF_OVERLAY),		\
+		 ata_opcode_name(ATA_CMD_SEC_SET_PASS),		\
+		 ata_opcode_name(ATA_CMD_SEC_UNLOCK),		\
+		 ata_opcode_name(ATA_CMD_SEC_ERASE_PREP),	\
+		 ata_opcode_name(ATA_CMD_SEC_ERASE_UNIT),	\
+		 ata_opcode_name(ATA_CMD_SEC_FREEZE_LOCK),	\
+		 ata_opcode_name(ATA_CMD_SEC_DISABLE_PASS),	\
+		 ata_opcode_name(ATA_CMD_CONFIG_STREAM),	\
+		 ata_opcode_name(ATA_CMD_SMART),		\
+		 ata_opcode_name(ATA_CMD_MEDIA_LOCK),		\
+		 ata_opcode_name(ATA_CMD_MEDIA_UNLOCK),		\
+		 ata_opcode_name(ATA_CMD_DSM),			\
+		 ata_opcode_name(ATA_CMD_CHK_MED_CRD_TYP),	\
+		 ata_opcode_name(ATA_CMD_CFA_REQ_EXT_ERR),	\
+		 ata_opcode_name(ATA_CMD_CFA_WRITE_NE),		\
+		 ata_opcode_name(ATA_CMD_CFA_TRANS_SECT),	\
+		 ata_opcode_name(ATA_CMD_CFA_ERASE),		\
+		 ata_opcode_name(ATA_CMD_CFA_WRITE_MULT_NE),	\
+		 ata_opcode_name(ATA_CMD_REQ_SENSE_DATA),	\
+		 ata_opcode_name(ATA_CMD_SANITIZE_DEVICE),	\
+		 ata_opcode_name(ATA_CMD_RESTORE),		\
+		 ata_opcode_name(ATA_CMD_READ_LONG),		\
+		 ata_opcode_name(ATA_CMD_READ_LONG_ONCE),	\
+		 ata_opcode_name(ATA_CMD_WRITE_LONG),		\
+		 ata_opcode_name(ATA_CMD_WRITE_LONG_ONCE))
+
+#define ata_error_name(result)	{ result, #result }
+#define show_error_name(val)				\
+	__print_symbolic(val,				\
+		ata_error_name(ATA_ICRC),		\
+		ata_error_name(ATA_UNC),		\
+		ata_error_name(ATA_MC),			\
+		ata_error_name(ATA_IDNF),		\
+		ata_error_name(ATA_MCR),		\
+		ata_error_name(ATA_ABORTED),		\
+		ata_error_name(ATA_TRK0NF),		\
+		ata_error_name(ATA_AMNF))
+
+#define ata_protocol_name(proto)	{ proto, #proto }
+#define show_protocol_name(val)				\
+	__print_symbolic(val,				\
+		ata_protocol_name(ATA_PROT_UNKNOWN),	\
+		ata_protocol_name(ATA_PROT_NODATA),	\
+		ata_protocol_name(ATA_PROT_PIO),	\
+		ata_protocol_name(ATA_PROT_DMA),	\
+		ata_protocol_name(ATA_PROT_NCQ),	\
+		ata_protocol_name(ATAPI_PROT_NODATA),	\
+		ata_protocol_name(ATAPI_PROT_PIO),	\
+		ata_protocol_name(ATAPI_PROT_DMA))
+
+const char *libata_trace_parse_status(struct trace_seq*, unsigned char);
+#define __parse_status(s) libata_trace_parse_status(p, s)
+
+const char *libata_trace_parse_eh_action(struct trace_seq *, unsigned int);
+#define __parse_eh_action(a) libata_trace_parse_eh_action(p, a)
+
+const char *libata_trace_parse_eh_err_mask(struct trace_seq *, unsigned int);
+#define __parse_eh_err_mask(m) libata_trace_parse_eh_err_mask(p, m)
+
+const char *libata_trace_parse_qc_flags(struct trace_seq *, unsigned int);
+#define __parse_qc_flags(f) libata_trace_parse_qc_flags(p, f)
+
+TRACE_EVENT(ata_qc_issue,
+
+	TP_PROTO(struct ata_queued_cmd *qc),
+
+	TP_ARGS(qc),
+
+	TP_STRUCT__entry(
+		__field( unsigned int,	ata_port )
+		__field( unsigned int,	ata_dev	)
+		__field( unsigned int,	tag	)
+		__field( unsigned char,	cmd	)
+		__field( unsigned char,	dev	)
+		__field( unsigned char,	lbal	)
+		__field( unsigned char,	lbam	)
+		__field( unsigned char,	lbah	)
+		__field( unsigned char,	nsect	)
+		__field( unsigned char,	feature	)
+		__field( unsigned char,	hob_lbal )
+		__field( unsigned char,	hob_lbam )
+		__field( unsigned char,	hob_lbah )
+		__field( unsigned char,	hob_nsect )
+		__field( unsigned char,	hob_feature )
+		__field( unsigned char,	ctl )
+		__field( unsigned char,	proto )
+		__field( unsigned long,	flags )
+	),
+
+	TP_fast_assign(
+		__entry->ata_port	= qc->ap->print_id;
+		__entry->ata_dev	= qc->dev->link->pmp + qc->dev->devno;
+		__entry->tag		= qc->tag;
+		__entry->proto		= qc->tf.protocol;
+		__entry->cmd		= qc->tf.command;
+		__entry->dev		= qc->tf.device;
+		__entry->lbal		= qc->tf.lbal;
+		__entry->lbam		= qc->tf.lbam;
+		__entry->lbah		= qc->tf.lbah;
+		__entry->hob_lbal	= qc->tf.hob_lbal;
+		__entry->hob_lbam	= qc->tf.hob_lbam;
+		__entry->hob_lbah	= qc->tf.hob_lbah;
+		__entry->feature	= qc->tf.feature;
+		__entry->hob_feature	= qc->tf.hob_feature;
+		__entry->nsect		= qc->tf.nsect;
+		__entry->hob_nsect	= qc->tf.hob_nsect;
+	),
+
+	TP_printk("ata_port=%u ata_dev=%u tag=%d proto=%s cmd=%s " \
+		  " tf=(%02x/%02x:%02x:%02x:%02x:%02x/%02x:%02x:%02x:%02x:%02x/%02x)",
+		  __entry->ata_port, __entry->ata_dev, __entry->tag,
+		  show_protocol_name(__entry->proto),
+		  show_opcode_name(__entry->cmd),
+		  __entry->cmd, __entry->feature, __entry->nsect,
+		  __entry->lbal, __entry->lbam, __entry->lbah,
+		  __entry->hob_feature, __entry->hob_nsect,
+		  __entry->hob_lbal, __entry->hob_lbam, __entry->hob_lbah,
+		  __entry->dev)
+);
+
+DECLARE_EVENT_CLASS(ata_qc_complete_template,
+
+	TP_PROTO(struct ata_queued_cmd *qc),
+
+	TP_ARGS(qc),
+
+	TP_STRUCT__entry(
+		__field( unsigned int,	ata_port )
+		__field( unsigned int,	ata_dev	)
+		__field( unsigned int,	tag	)
+		__field( unsigned char,	status	)
+		__field( unsigned char,	dev	)
+		__field( unsigned char,	lbal	)
+		__field( unsigned char,	lbam	)
+		__field( unsigned char,	lbah	)
+		__field( unsigned char,	nsect	)
+		__field( unsigned char,	error	)
+		__field( unsigned char,	hob_lbal )
+		__field( unsigned char,	hob_lbam )
+		__field( unsigned char,	hob_lbah )
+		__field( unsigned char,	hob_nsect )
+		__field( unsigned char,	hob_feature )
+		__field( unsigned char,	ctl )
+		__field( unsigned long,	flags )
+	),
+
+	TP_fast_assign(
+		__entry->ata_port	= qc->ap->print_id;
+		__entry->ata_dev	= qc->dev->link->pmp + qc->dev->devno;
+		__entry->tag		= qc->tag;
+		__entry->status		= qc->result_tf.command;
+		__entry->dev		= qc->result_tf.device;
+		__entry->lbal		= qc->result_tf.lbal;
+		__entry->lbam		= qc->result_tf.lbam;
+		__entry->lbah		= qc->result_tf.lbah;
+		__entry->hob_lbal	= qc->result_tf.hob_lbal;
+		__entry->hob_lbam	= qc->result_tf.hob_lbam;
+		__entry->hob_lbah	= qc->result_tf.hob_lbah;
+		__entry->error		= qc->result_tf.feature;
+		__entry->hob_feature	= qc->result_tf.hob_feature;
+		__entry->nsect		= qc->result_tf.nsect;
+		__entry->hob_nsect	= qc->result_tf.hob_nsect;
+	),
+
+	TP_printk("ata_port=%u ata_dev=%u tag=%d flags=%s status=%s " \
+		  " res=(%02x/%02x:%02x:%02x:%02x:%02x/%02x:%02x:%02x:%02x:%02x/%02x)",
+		  __entry->ata_port, __entry->ata_dev, __entry->tag,
+		  __parse_qc_flags(__entry->flags),
+		  __parse_status(__entry->status),
+		  __entry->status, __entry->error, __entry->nsect,
+		  __entry->lbal, __entry->lbam, __entry->lbah,
+		  __entry->hob_feature, __entry->hob_nsect,
+		  __entry->hob_lbal, __entry->hob_lbam, __entry->hob_lbah,
+		  __entry->dev)
+);
+
+DEFINE_EVENT(ata_qc_complete_template, ata_qc_complete_internal,
+	     TP_PROTO(struct ata_queued_cmd *qc),
+	     TP_ARGS(qc));
+
+DEFINE_EVENT(ata_qc_complete_template, ata_qc_complete_failed,
+	     TP_PROTO(struct ata_queued_cmd *qc),
+	     TP_ARGS(qc));
+
+DEFINE_EVENT(ata_qc_complete_template, ata_qc_complete_done,
+	     TP_PROTO(struct ata_queued_cmd *qc),
+	     TP_ARGS(qc));
+
+TRACE_EVENT(ata_eh_link_autopsy,
+
+	TP_PROTO(struct ata_device *dev, unsigned int eh_action, unsigned int eh_err_mask),
+
+	TP_ARGS(dev, eh_action, eh_err_mask),
+
+	TP_STRUCT__entry(
+		__field( unsigned int,	ata_port )
+		__field( unsigned int,	ata_dev	)
+		__field( unsigned int,	eh_action )
+		__field( unsigned int,	eh_err_mask)
+	),
+
+	TP_fast_assign(
+		__entry->ata_port	= dev->link->ap->print_id;
+		__entry->ata_dev	= dev->link->pmp + dev->devno;
+		__entry->eh_action	= eh_action;
+		__entry->eh_err_mask	= eh_err_mask;
+	),
+
+	TP_printk("ata_port=%u ata_dev=%u eh_action=%s err_mask=%s",
+		  __entry->ata_port, __entry->ata_dev,
+		  __parse_eh_action(__entry->eh_action),
+		  __parse_eh_err_mask(__entry->eh_err_mask))
+);
+
+TRACE_EVENT(ata_eh_link_autopsy_qc,
+
+	TP_PROTO(struct ata_queued_cmd *qc),
+
+	TP_ARGS(qc),
+
+	TP_STRUCT__entry(
+		__field( unsigned int,	ata_port )
+		__field( unsigned int,	ata_dev	)
+		__field( unsigned int,	tag	)
+		__field( unsigned int,	qc_flags )
+		__field( unsigned int,	eh_err_mask)
+	),
+
+	TP_fast_assign(
+		__entry->ata_port	= qc->ap->print_id;
+		__entry->ata_dev	= qc->dev->link->pmp + qc->dev->devno;
+		__entry->tag		= qc->tag;
+		__entry->qc_flags	= qc->flags;
+		__entry->eh_err_mask	= qc->err_mask;
+	),
+
+	TP_printk("ata_port=%u ata_dev=%u tag=%d flags=%s err_mask=%s",
+		  __entry->ata_port, __entry->ata_dev, __entry->tag,
+		  __parse_qc_flags(__entry->qc_flags),
+		  __parse_eh_err_mask(__entry->eh_err_mask))
+);
+
+#endif /*  _TRACE_LIBATA_H */
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>
diff --git a/include/uapi/linux/Kbuild b/include/uapi/linux/Kbuild
index 68ceb97..38df234 100644
--- a/include/uapi/linux/Kbuild
+++ b/include/uapi/linux/Kbuild
@@ -6,6 +6,7 @@ header-y += caif/
 header-y += dvb/
 header-y += hdlc/
 header-y += hsi/
+header-y += iio/
 header-y += isdn/
 header-y += mmc/
 header-y += nfsd/
diff --git a/include/uapi/linux/hsi/Kbuild b/include/uapi/linux/hsi/Kbuild
index 30ab3cd..a16a005 100644
--- a/include/uapi/linux/hsi/Kbuild
+++ b/include/uapi/linux/hsi/Kbuild
@@ -1,2 +1,2 @@
 # UAPI Header export list
-header-y += hsi_char.h
+header-y += hsi_char.h cs-protocol.h
diff --git a/include/uapi/linux/hsi/cs-protocol.h b/include/uapi/linux/hsi/cs-protocol.h
new file mode 100644
index 0000000..4957bba
--- /dev/null
+++ b/include/uapi/linux/hsi/cs-protocol.h
@@ -0,0 +1,113 @@
+/*
+ * cmt-speech interface definitions
+ *
+ * Copyright (C) 2008,2009,2010 Nokia Corporation. All rights reserved.
+ *
+ * Contact: Kai Vehmanen <kai.vehmanen@nokia.com>
+ * Original author: Peter Ujfalusi <peter.ujfalusi@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ */
+
+#ifndef _CS_PROTOCOL_H
+#define _CS_PROTOCOL_H
+
+#include <linux/types.h>
+#include <linux/ioctl.h>
+
+/* chardev parameters */
+#define CS_DEV_FILE_NAME		"/dev/cmt_speech"
+
+/* user-space API versioning */
+#define CS_IF_VERSION			2
+
+/* APE kernel <-> user space messages */
+#define CS_CMD_SHIFT			28
+#define CS_DOMAIN_SHIFT			24
+
+#define CS_CMD_MASK			0xff000000
+#define CS_PARAM_MASK			0xffffff
+
+#define CS_CMD(id, dom) \
+	(((id) << CS_CMD_SHIFT) | ((dom) << CS_DOMAIN_SHIFT))
+
+#define CS_ERROR			CS_CMD(1, 0)
+#define CS_RX_DATA_RECEIVED		CS_CMD(2, 0)
+#define CS_TX_DATA_READY		CS_CMD(3, 0)
+#define CS_TX_DATA_SENT			CS_CMD(4, 0)
+
+/* params to CS_ERROR indication */
+#define CS_ERR_PEER_RESET		0
+
+/* ioctl interface */
+
+/* parameters to CS_CONFIG_BUFS ioctl */
+#define CS_FEAT_TSTAMP_RX_CTRL		(1 << 0)
+#define CS_FEAT_ROLLING_RX_COUNTER	(2 << 0)
+
+/* parameters to CS_GET_STATE ioctl */
+#define CS_STATE_CLOSED			0
+#define CS_STATE_OPENED			1 /* resource allocated */
+#define CS_STATE_CONFIGURED		2 /* data path active */
+
+/* maximum number of TX/RX buffers */
+#define CS_MAX_BUFFERS_SHIFT		4
+#define CS_MAX_BUFFERS			(1 << CS_MAX_BUFFERS_SHIFT)
+
+/* Parameters for setting up the data buffers */
+struct cs_buffer_config {
+	__u32 rx_bufs;	/* number of RX buffer slots */
+	__u32 tx_bufs;	/* number of TX buffer slots */
+	__u32 buf_size;	/* bytes */
+	__u32 flags;	/* see CS_FEAT_* */
+	__u32 reserved[4];
+};
+
+/*
+ * Struct describing the layout and contents of the driver mmap area.
+ * This information is meant as read-only information for the application.
+ */
+struct cs_mmap_config_block {
+	__u32 reserved1;
+	__u32 buf_size;		/* 0=disabled, otherwise the transfer size */
+	__u32 rx_bufs;		/* # of RX buffers */
+	__u32 tx_bufs;		/* # of TX buffers */
+	__u32 reserved2;
+	/* array of offsets within the mmap area for each RX and TX buffer */
+	__u32 rx_offsets[CS_MAX_BUFFERS];
+	__u32 tx_offsets[CS_MAX_BUFFERS];
+	__u32 rx_ptr;
+	__u32 rx_ptr_boundary;
+	__u32 reserved3[2];
+	/*
+	 * if enabled with CS_FEAT_TSTAMP_RX_CTRL, monotonic
+	 * timestamp taken when the last control command was received
+	 */
+	struct timespec tstamp_rx_ctrl;
+};
+
+#define CS_IO_MAGIC		'C'
+
+#define CS_IOW(num, dtype)	_IOW(CS_IO_MAGIC, num, dtype)
+#define CS_IOR(num, dtype)	_IOR(CS_IO_MAGIC, num, dtype)
+#define CS_IOWR(num, dtype)	_IOWR(CS_IO_MAGIC, num, dtype)
+#define CS_IO(num)		_IO(CS_IO_MAGIC, num)
+
+#define CS_GET_STATE		CS_IOR(21, unsigned int)
+#define CS_SET_WAKELINE		CS_IOW(23, unsigned int)
+#define CS_GET_IF_VERSION	CS_IOR(30, unsigned int)
+#define CS_CONFIG_BUFS		CS_IOW(31, struct cs_buffer_config)
+
+#endif /* _CS_PROTOCOL_H */
diff --git a/include/uapi/linux/iio/Kbuild b/include/uapi/linux/iio/Kbuild
new file mode 100644
index 0000000..86f76d8
--- /dev/null
+++ b/include/uapi/linux/iio/Kbuild
@@ -0,0 +1,3 @@
+# UAPI Header export list
+header-y += events.h
+header-y += types.h
diff --git a/include/uapi/linux/iio/events.h b/include/uapi/linux/iio/events.h
new file mode 100644
index 0000000..00bbdae
--- /dev/null
+++ b/include/uapi/linux/iio/events.h
@@ -0,0 +1,42 @@
+/* The industrial I/O - event passing to userspace
+ *
+ * Copyright (c) 2008-2011 Jonathan Cameron
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ */
+#ifndef _UAPI_IIO_EVENTS_H_
+#define _UAPI_IIO_EVENTS_H_
+
+#include <linux/ioctl.h>
+#include <linux/types.h>
+
+/**
+ * struct iio_event_data - The actual event being pushed to userspace
+ * @id:		event identifier
+ * @timestamp:	best estimate of time of event occurrence (often from
+ *		the interrupt handler)
+ */
+struct iio_event_data {
+	__u64	id;
+	__s64	timestamp;
+};
+
+#define IIO_GET_EVENT_FD_IOCTL _IOR('i', 0x90, int)
+
+#define IIO_EVENT_CODE_EXTRACT_TYPE(mask) ((mask >> 56) & 0xFF)
+
+#define IIO_EVENT_CODE_EXTRACT_DIR(mask) ((mask >> 48) & 0x7F)
+
+#define IIO_EVENT_CODE_EXTRACT_CHAN_TYPE(mask) ((mask >> 32) & 0xFF)
+
+/* Event code number extraction depends on which type of event we have.
+ * Perhaps review this function in the future*/
+#define IIO_EVENT_CODE_EXTRACT_CHAN(mask) ((__s16)(mask & 0xFFFF))
+#define IIO_EVENT_CODE_EXTRACT_CHAN2(mask) ((__s16)(((mask) >> 16) & 0xFFFF))
+
+#define IIO_EVENT_CODE_EXTRACT_MODIFIER(mask) ((mask >> 40) & 0xFF)
+#define IIO_EVENT_CODE_EXTRACT_DIFF(mask) (((mask) >> 55) & 0x1)
+
+#endif /* _UAPI_IIO_EVENTS_H_ */
diff --git a/include/uapi/linux/iio/types.h b/include/uapi/linux/iio/types.h
new file mode 100644
index 0000000..5c46019
--- /dev/null
+++ b/include/uapi/linux/iio/types.h
@@ -0,0 +1,92 @@
+/* industrial I/O data types needed both in and out of kernel
+ *
+ * Copyright (c) 2008 Jonathan Cameron
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ */
+
+#ifndef _UAPI_IIO_TYPES_H_
+#define _UAPI_IIO_TYPES_H_
+
+enum iio_chan_type {
+	IIO_VOLTAGE,
+	IIO_CURRENT,
+	IIO_POWER,
+	IIO_ACCEL,
+	IIO_ANGL_VEL,
+	IIO_MAGN,
+	IIO_LIGHT,
+	IIO_INTENSITY,
+	IIO_PROXIMITY,
+	IIO_TEMP,
+	IIO_INCLI,
+	IIO_ROT,
+	IIO_ANGL,
+	IIO_TIMESTAMP,
+	IIO_CAPACITANCE,
+	IIO_ALTVOLTAGE,
+	IIO_CCT,
+	IIO_PRESSURE,
+	IIO_HUMIDITYRELATIVE,
+	IIO_ACTIVITY,
+	IIO_STEPS,
+	IIO_ENERGY,
+	IIO_DISTANCE,
+	IIO_VELOCITY,
+};
+
+enum iio_modifier {
+	IIO_NO_MOD,
+	IIO_MOD_X,
+	IIO_MOD_Y,
+	IIO_MOD_Z,
+	IIO_MOD_X_AND_Y,
+	IIO_MOD_X_AND_Z,
+	IIO_MOD_Y_AND_Z,
+	IIO_MOD_X_AND_Y_AND_Z,
+	IIO_MOD_X_OR_Y,
+	IIO_MOD_X_OR_Z,
+	IIO_MOD_Y_OR_Z,
+	IIO_MOD_X_OR_Y_OR_Z,
+	IIO_MOD_LIGHT_BOTH,
+	IIO_MOD_LIGHT_IR,
+	IIO_MOD_ROOT_SUM_SQUARED_X_Y,
+	IIO_MOD_SUM_SQUARED_X_Y_Z,
+	IIO_MOD_LIGHT_CLEAR,
+	IIO_MOD_LIGHT_RED,
+	IIO_MOD_LIGHT_GREEN,
+	IIO_MOD_LIGHT_BLUE,
+	IIO_MOD_QUATERNION,
+	IIO_MOD_TEMP_AMBIENT,
+	IIO_MOD_TEMP_OBJECT,
+	IIO_MOD_NORTH_MAGN,
+	IIO_MOD_NORTH_TRUE,
+	IIO_MOD_NORTH_MAGN_TILT_COMP,
+	IIO_MOD_NORTH_TRUE_TILT_COMP,
+	IIO_MOD_RUNNING,
+	IIO_MOD_JOGGING,
+	IIO_MOD_WALKING,
+	IIO_MOD_STILL,
+	IIO_MOD_ROOT_SUM_SQUARED_X_Y_Z,
+};
+
+enum iio_event_type {
+	IIO_EV_TYPE_THRESH,
+	IIO_EV_TYPE_MAG,
+	IIO_EV_TYPE_ROC,
+	IIO_EV_TYPE_THRESH_ADAPTIVE,
+	IIO_EV_TYPE_MAG_ADAPTIVE,
+	IIO_EV_TYPE_CHANGE,
+};
+
+enum iio_event_direction {
+	IIO_EV_DIR_EITHER,
+	IIO_EV_DIR_RISING,
+	IIO_EV_DIR_FALLING,
+	IIO_EV_DIR_NONE,
+};
+
+#endif /* _UAPI_IIO_TYPES_H_ */
+
diff --git a/include/uapi/linux/input.h b/include/uapi/linux/input.h
index 2b628c3..8038e9a 100644
--- a/include/uapi/linux/input.h
+++ b/include/uapi/linux/input.h
@@ -977,7 +977,8 @@ struct input_keymap_entry {
  */
 #define MT_TOOL_FINGER		0
 #define MT_TOOL_PEN		1
-#define MT_TOOL_MAX		1
+#define MT_TOOL_PALM		2
+#define MT_TOOL_MAX		2
 
 /*
  * Values describing the status of a force-feedback effect
diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h
index 8055706..f574d7b 100644
--- a/include/uapi/linux/kvm.h
+++ b/include/uapi/linux/kvm.h
@@ -147,6 +147,16 @@ struct kvm_pit_config {
 
 #define KVM_PIT_SPEAKER_DUMMY     1
 
+struct kvm_s390_skeys {
+	__u64 start_gfn;
+	__u64 count;
+	__u64 skeydata_addr;
+	__u32 flags;
+	__u32 reserved[9];
+};
+#define KVM_S390_GET_SKEYS_NONE   1
+#define KVM_S390_SKEYS_MAX        1048576
+
 #define KVM_EXIT_UNKNOWN          0
 #define KVM_EXIT_EXCEPTION        1
 #define KVM_EXIT_IO               2
@@ -172,6 +182,7 @@ struct kvm_pit_config {
 #define KVM_EXIT_S390_TSCH        22
 #define KVM_EXIT_EPR              23
 #define KVM_EXIT_SYSTEM_EVENT     24
+#define KVM_EXIT_S390_STSI        25
 
 /* For KVM_EXIT_INTERNAL_ERROR */
 /* Emulate instruction failed. */
@@ -309,6 +320,15 @@ struct kvm_run {
 			__u32 type;
 			__u64 flags;
 		} system_event;
+		/* KVM_EXIT_S390_STSI */
+		struct {
+			__u64 addr;
+			__u8 ar;
+			__u8 reserved;
+			__u8 fc;
+			__u8 sel1;
+			__u16 sel2;
+		} s390_stsi;
 		/* Fix the size of the union. */
 		char padding[256];
 	};
@@ -324,7 +344,7 @@ struct kvm_run {
 	__u64 kvm_dirty_regs;
 	union {
 		struct kvm_sync_regs regs;
-		char padding[1024];
+		char padding[2048];
 	} s;
 };
 
@@ -365,6 +385,24 @@ struct kvm_translation {
 	__u8  pad[5];
 };
 
+/* for KVM_S390_MEM_OP */
+struct kvm_s390_mem_op {
+	/* in */
+	__u64 gaddr;		/* the guest address */
+	__u64 flags;		/* flags */
+	__u32 size;		/* amount of bytes */
+	__u32 op;		/* type of operation */
+	__u64 buf;		/* buffer in userspace */
+	__u8 ar;		/* the access register number */
+	__u8 reserved[31];	/* should be set to 0 */
+};
+/* types for kvm_s390_mem_op->op */
+#define KVM_S390_MEMOP_LOGICAL_READ	0
+#define KVM_S390_MEMOP_LOGICAL_WRITE	1
+/* flags for kvm_s390_mem_op->flags */
+#define KVM_S390_MEMOP_F_CHECK_ONLY		(1ULL << 0)
+#define KVM_S390_MEMOP_F_INJECT_EXCEPTION	(1ULL << 1)
+
 /* for KVM_INTERRUPT */
 struct kvm_interrupt {
 	/* in */
@@ -520,6 +558,13 @@ struct kvm_s390_irq {
 	} u;
 };
 
+struct kvm_s390_irq_state {
+	__u64 buf;
+	__u32 flags;
+	__u32 len;
+	__u32 reserved[4];
+};
+
 /* for KVM_SET_GUEST_DEBUG */
 
 #define KVM_GUESTDBG_ENABLE		0x00000001
@@ -760,6 +805,14 @@ struct kvm_ppc_smmu_info {
 #define KVM_CAP_PPC_ENABLE_HCALL 104
 #define KVM_CAP_CHECK_EXTENSION_VM 105
 #define KVM_CAP_S390_USER_SIGP 106
+#define KVM_CAP_S390_VECTOR_REGISTERS 107
+#define KVM_CAP_S390_MEM_OP 108
+#define KVM_CAP_S390_USER_STSI 109
+#define KVM_CAP_S390_SKEYS 110
+#define KVM_CAP_MIPS_FPU 111
+#define KVM_CAP_MIPS_MSA 112
+#define KVM_CAP_S390_INJECT_IRQ 113
+#define KVM_CAP_S390_IRQ_STATE 114
 
 #ifdef KVM_CAP_IRQ_ROUTING
 
@@ -1135,6 +1188,16 @@ struct kvm_s390_ucas_mapping {
 #define KVM_ARM_VCPU_INIT	  _IOW(KVMIO,  0xae, struct kvm_vcpu_init)
 #define KVM_ARM_PREFERRED_TARGET  _IOR(KVMIO,  0xaf, struct kvm_vcpu_init)
 #define KVM_GET_REG_LIST	  _IOWR(KVMIO, 0xb0, struct kvm_reg_list)
+/* Available with KVM_CAP_S390_MEM_OP */
+#define KVM_S390_MEM_OP		  _IOW(KVMIO,  0xb1, struct kvm_s390_mem_op)
+/* Available with KVM_CAP_S390_SKEYS */
+#define KVM_S390_GET_SKEYS      _IOW(KVMIO, 0xb2, struct kvm_s390_skeys)
+#define KVM_S390_SET_SKEYS      _IOW(KVMIO, 0xb3, struct kvm_s390_skeys)
+/* Available with KVM_CAP_S390_INJECT_IRQ */
+#define KVM_S390_IRQ              _IOW(KVMIO,  0xb4, struct kvm_s390_irq)
+/* Available with KVM_CAP_S390_IRQ_STATE */
+#define KVM_S390_SET_IRQ_STATE	  _IOW(KVMIO, 0xb5, struct kvm_s390_irq_state)
+#define KVM_S390_GET_IRQ_STATE	  _IOW(KVMIO, 0xb6, struct kvm_s390_irq_state)
 
 #define KVM_DEV_ASSIGN_ENABLE_IOMMU	(1 << 0)
 #define KVM_DEV_ASSIGN_PCI_2_3		(1 << 1)
diff --git a/include/uapi/linux/nfsd/export.h b/include/uapi/linux/nfsd/export.h
index 4742f2c..d3bd6ffe 100644
--- a/include/uapi/linux/nfsd/export.h
+++ b/include/uapi/linux/nfsd/export.h
@@ -47,7 +47,7 @@
  * exported filesystem.
  */
 #define	NFSEXP_V4ROOT		0x10000
-#define NFSEXP_NOPNFS		0x20000
+#define NFSEXP_PNFS		0x20000
 
 /* All flags that we claim to support.  (Note we don't support NOACL.) */
 #define NFSEXP_ALLFLAGS		0x3FE7F
diff --git a/include/uapi/linux/serial.h b/include/uapi/linux/serial.h
index 5e0d0ed..25331f9 100644
--- a/include/uapi/linux/serial.h
+++ b/include/uapi/linux/serial.h
@@ -65,6 +65,10 @@ struct serial_struct {
 #define SERIAL_IO_PORT	0
 #define SERIAL_IO_HUB6	1
 #define SERIAL_IO_MEM	2
+#define SERIAL_IO_MEM32	  3
+#define SERIAL_IO_AU	  4
+#define SERIAL_IO_TSI	  5
+#define SERIAL_IO_MEM32BE 6
 
 #define UART_CLEAR_FIFO		0x01
 #define UART_USE_FIFO		0x02
diff --git a/include/uapi/linux/tc_act/Kbuild b/include/uapi/linux/tc_act/Kbuild
index 19d5219..242cf0c 100644
--- a/include/uapi/linux/tc_act/Kbuild
+++ b/include/uapi/linux/tc_act/Kbuild
@@ -9,3 +9,4 @@ header-y += tc_pedit.h
 header-y += tc_skbedit.h
 header-y += tc_vlan.h
 header-y += tc_bpf.h
+header-y += tc_connmark.h
diff --git a/include/uapi/linux/virtio_blk.h b/include/uapi/linux/virtio_blk.h
index 3c53eec..19c66fc 100644
--- a/include/uapi/linux/virtio_blk.h
+++ b/include/uapi/linux/virtio_blk.h
@@ -60,7 +60,7 @@ struct virtio_blk_config {
 	__u32 size_max;
 	/* The maximum number of segments (if VIRTIO_BLK_F_SEG_MAX) */
 	__u32 seg_max;
-	/* geometry the device (if VIRTIO_BLK_F_GEOMETRY) */
+	/* geometry of the device (if VIRTIO_BLK_F_GEOMETRY) */
 	struct virtio_blk_geometry {
 		__u16 cylinders;
 		__u8 heads;
@@ -119,7 +119,11 @@ struct virtio_blk_config {
 #define VIRTIO_BLK_T_BARRIER	0x80000000
 #endif /* !VIRTIO_BLK_NO_LEGACY */
 
-/* This is the first element of the read scatter-gather list. */
+/*
+ * This comes first in the read scatter-gather list.
+ * For legacy virtio, if VIRTIO_F_ANY_LAYOUT is not negotiated,
+ * this is the first element of the read scatter-gather list.
+ */
 struct virtio_blk_outhdr {
 	/* VIRTIO_BLK_T* */
 	__virtio32 type;
diff --git a/include/uapi/linux/virtio_scsi.h b/include/uapi/linux/virtio_scsi.h
index 42b9370..cc18ef8 100644
--- a/include/uapi/linux/virtio_scsi.h
+++ b/include/uapi/linux/virtio_scsi.h
@@ -29,8 +29,16 @@
 
 #include <linux/virtio_types.h>
 
-#define VIRTIO_SCSI_CDB_SIZE   32
-#define VIRTIO_SCSI_SENSE_SIZE 96
+/* Default values of the CDB and sense data size configuration fields */
+#define VIRTIO_SCSI_CDB_DEFAULT_SIZE   32
+#define VIRTIO_SCSI_SENSE_DEFAULT_SIZE 96
+
+#ifndef VIRTIO_SCSI_CDB_SIZE
+#define VIRTIO_SCSI_CDB_SIZE VIRTIO_SCSI_CDB_DEFAULT_SIZE
+#endif
+#ifndef VIRTIO_SCSI_SENSE_SIZE
+#define VIRTIO_SCSI_SENSE_SIZE VIRTIO_SCSI_SENSE_DEFAULT_SIZE
+#endif
 
 /* SCSI command request, followed by data-out */
 struct virtio_scsi_cmd_req {
diff --git a/include/video/omapdss.h b/include/video/omapdss.h
index 60de61f..c8ed15d 100644
--- a/include/video/omapdss.h
+++ b/include/video/omapdss.h
@@ -689,6 +689,7 @@ struct omapdss_dsi_ops {
 };
 
 struct omap_dss_device {
+	struct kobject kobj;
 	struct device *dev;
 
 	struct module *owner;
diff --git a/include/xen/xen-ops.h b/include/xen/xen-ops.h
index 7491ee5..8333821 100644
--- a/include/xen/xen-ops.h
+++ b/include/xen/xen-ops.h
@@ -46,4 +46,30 @@ static inline efi_system_table_t __init *xen_efi_probe(void)
 }
 #endif
 
+#ifdef CONFIG_PREEMPT
+
+static inline void xen_preemptible_hcall_begin(void)
+{
+}
+
+static inline void xen_preemptible_hcall_end(void)
+{
+}
+
+#else
+
+DECLARE_PER_CPU(bool, xen_in_preemptible_hcall);
+
+static inline void xen_preemptible_hcall_begin(void)
+{
+	__this_cpu_write(xen_in_preemptible_hcall, true);
+}
+
+static inline void xen_preemptible_hcall_end(void)
+{
+	__this_cpu_write(xen_in_preemptible_hcall, false);
+}
+
+#endif /* CONFIG_PREEMPT */
+
 #endif /* INCLUDE_XEN_OPS_H */
diff --git a/include/xen/xenbus.h b/include/xen/xenbus.h
index b78f21c..b0f1c9e 100644
--- a/include/xen/xenbus.h
+++ b/include/xen/xenbus.h
@@ -114,9 +114,9 @@ int __must_check __xenbus_register_backend(struct xenbus_driver *drv,
 					   const char *mod_name);
 
 #define xenbus_register_frontend(drv) \
-	__xenbus_register_frontend(drv, THIS_MODULE, KBUILD_MODNAME);
+	__xenbus_register_frontend(drv, THIS_MODULE, KBUILD_MODNAME)
 #define xenbus_register_backend(drv) \
-	__xenbus_register_backend(drv, THIS_MODULE, KBUILD_MODNAME);
+	__xenbus_register_backend(drv, THIS_MODULE, KBUILD_MODNAME)
 
 void xenbus_unregister_driver(struct xenbus_driver *drv);
 
diff --git a/init/main.c b/init/main.c
index 6f0f1c5f..4a6974e 100644
--- a/init/main.c
+++ b/init/main.c
@@ -654,8 +654,8 @@ asmlinkage __visible void __init start_kernel(void)
 	page_writeback_init();
 	proc_root_init();
 	nsfs_init();
-	cgroup_init();
 	cpuset_init();
+	cgroup_init();
 	taskstats_init_early();
 	delayacct_init();
 
diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index 29a7b2c..a220fdb 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -3806,10 +3806,7 @@ static void *pidlist_allocate(int count)
 
 static void pidlist_free(void *p)
 {
-	if (is_vmalloc_addr(p))
-		vfree(p);
-	else
-		kfree(p);
+	kvfree(p);
 }
 
 /*
@@ -5040,6 +5037,9 @@ int __init cgroup_init(void)
 			WARN_ON(cgroup_add_dfl_cftypes(ss, ss->dfl_cftypes));
 			WARN_ON(cgroup_add_legacy_cftypes(ss, ss->legacy_cftypes));
 		}
+
+		if (ss->bind)
+			ss->bind(init_css_set.subsys[ssid]);
 	}
 
 	cgroup_kobj = kobject_create_and_add("cgroup", fs_kobj);
diff --git a/kernel/cpu.c b/kernel/cpu.c
index 1972b16..82eea9c 100644
--- a/kernel/cpu.c
+++ b/kernel/cpu.c
@@ -20,6 +20,7 @@
 #include <linux/gfp.h>
 #include <linux/suspend.h>
 #include <linux/lockdep.h>
+#include <linux/tick.h>
 #include <trace/events/power.h>
 
 #include "smpboot.h"
@@ -338,6 +339,8 @@ static int __ref take_cpu_down(void *_param)
 		return err;
 
 	cpu_notify(CPU_DYING | param->mod, param->hcpu);
+	/* Give up timekeeping duties */
+	tick_handover_do_timer();
 	/* Park the stopper thread */
 	kthread_park(current);
 	return 0;
@@ -411,10 +414,12 @@ static int __ref _cpu_down(unsigned int cpu, int tasks_frozen)
 	while (!idle_cpu(cpu))
 		cpu_relax();
 
+	hotplug_cpu__broadcast_tick_pull(cpu);
 	/* This actually kills the CPU. */
 	__cpu_die(cpu);
 
 	/* CPU is completely dead: tell everyone.  Too late to complain. */
+	tick_cleanup_dead_cpu(cpu);
 	cpu_notify_nofail(CPU_DEAD | mod, hcpu);
 
 	check_for_tasks(cpu);
diff --git a/kernel/cpuset.c b/kernel/cpuset.c
index 1d1fe93..c68f072 100644
--- a/kernel/cpuset.c
+++ b/kernel/cpuset.c
@@ -548,9 +548,6 @@ static void update_domain_attr_tree(struct sched_domain_attr *dattr,
 
 	rcu_read_lock();
 	cpuset_for_each_descendant_pre(cp, pos_css, root_cs) {
-		if (cp == root_cs)
-			continue;
-
 		/* skip the whole subtree if @cp doesn't have any CPU */
 		if (cpumask_empty(cp->cpus_allowed)) {
 			pos_css = css_rightmost_descendant(pos_css);
@@ -625,6 +622,7 @@ static int generate_sched_domains(cpumask_var_t **domains,
 	int csn;		/* how many cpuset ptrs in csa so far */
 	int i, j, k;		/* indices for partition finding loops */
 	cpumask_var_t *doms;	/* resulting partition; i.e. sched domains */
+	cpumask_var_t non_isolated_cpus;  /* load balanced CPUs */
 	struct sched_domain_attr *dattr;  /* attributes for custom domains */
 	int ndoms = 0;		/* number of sched domains in result */
 	int nslot;		/* next empty doms[] struct cpumask slot */
@@ -634,6 +632,10 @@ static int generate_sched_domains(cpumask_var_t **domains,
 	dattr = NULL;
 	csa = NULL;
 
+	if (!alloc_cpumask_var(&non_isolated_cpus, GFP_KERNEL))
+		goto done;
+	cpumask_andnot(non_isolated_cpus, cpu_possible_mask, cpu_isolated_map);
+
 	/* Special case for the 99% of systems with one, full, sched domain */
 	if (is_sched_load_balance(&top_cpuset)) {
 		ndoms = 1;
@@ -646,7 +648,8 @@ static int generate_sched_domains(cpumask_var_t **domains,
 			*dattr = SD_ATTR_INIT;
 			update_domain_attr_tree(dattr, &top_cpuset);
 		}
-		cpumask_copy(doms[0], top_cpuset.effective_cpus);
+		cpumask_and(doms[0], top_cpuset.effective_cpus,
+				     non_isolated_cpus);
 
 		goto done;
 	}
@@ -669,7 +672,8 @@ static int generate_sched_domains(cpumask_var_t **domains,
 		 * the corresponding sched domain.
 		 */
 		if (!cpumask_empty(cp->cpus_allowed) &&
-		    !is_sched_load_balance(cp))
+		    !(is_sched_load_balance(cp) &&
+		      cpumask_intersects(cp->cpus_allowed, non_isolated_cpus)))
 			continue;
 
 		if (is_sched_load_balance(cp))
@@ -751,6 +755,7 @@ restart:
 
 			if (apn == b->pn) {
 				cpumask_or(dp, dp, b->effective_cpus);
+				cpumask_and(dp, dp, non_isolated_cpus);
 				if (dattr)
 					update_domain_attr_tree(dattr + nslot, b);
 
@@ -763,6 +768,7 @@ restart:
 	BUG_ON(nslot != ndoms);
 
 done:
+	free_cpumask_var(non_isolated_cpus);
 	kfree(csa);
 
 	/*
@@ -873,7 +879,7 @@ static void update_cpumasks_hier(struct cpuset *cs, struct cpumask *new_cpus)
 		 * If it becomes empty, inherit the effective mask of the
 		 * parent, which is guaranteed to have some CPUs.
 		 */
-		if (cpumask_empty(new_cpus))
+		if (cgroup_on_dfl(cp->css.cgroup) && cpumask_empty(new_cpus))
 			cpumask_copy(new_cpus, parent->effective_cpus);
 
 		/* Skip the whole subtree if the cpumask remains the same. */
@@ -1129,7 +1135,7 @@ static void update_nodemasks_hier(struct cpuset *cs, nodemask_t *new_mems)
 		 * If it becomes empty, inherit the effective mask of the
 		 * parent, which is guaranteed to have some MEMs.
 		 */
-		if (nodes_empty(*new_mems))
+		if (cgroup_on_dfl(cp->css.cgroup) && nodes_empty(*new_mems))
 			*new_mems = parent->effective_mems;
 
 		/* Skip the whole subtree if the nodemask remains the same. */
@@ -1979,7 +1985,9 @@ static int cpuset_css_online(struct cgroup_subsys_state *css)
 
 	spin_lock_irq(&callback_lock);
 	cs->mems_allowed = parent->mems_allowed;
+	cs->effective_mems = parent->mems_allowed;
 	cpumask_copy(cs->cpus_allowed, parent->cpus_allowed);
+	cpumask_copy(cs->effective_cpus, parent->cpus_allowed);
 	spin_unlock_irq(&callback_lock);
 out_unlock:
 	mutex_unlock(&cpuset_mutex);
diff --git a/kernel/events/core.c b/kernel/events/core.c
index f04daab..2fabc06 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -3591,7 +3591,7 @@ static void put_event(struct perf_event *event)
 	ctx = perf_event_ctx_lock_nested(event, SINGLE_DEPTH_NESTING);
 	WARN_ON_ONCE(ctx->parent_ctx);
 	perf_remove_from_context(event, true);
-	mutex_unlock(&ctx->mutex);
+	perf_event_ctx_unlock(event, ctx);
 
 	_free_event(event);
 }
@@ -4574,6 +4574,13 @@ static void perf_pending_event(struct irq_work *entry)
 {
 	struct perf_event *event = container_of(entry,
 			struct perf_event, pending);
+	int rctx;
+
+	rctx = perf_swevent_get_recursion_context();
+	/*
+	 * If we 'fail' here, that's OK, it means recursion is already disabled
+	 * and we won't recurse 'further'.
+	 */
 
 	if (event->pending_disable) {
 		event->pending_disable = 0;
@@ -4584,6 +4591,9 @@ static void perf_pending_event(struct irq_work *entry)
 		event->pending_wakeup = 0;
 		perf_event_wakeup(event);
 	}
+
+	if (rctx >= 0)
+		perf_swevent_put_recursion_context(rctx);
 }
 
 /*
diff --git a/kernel/futex.c b/kernel/futex.c
index 2a5e383..2579e40 100644
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -900,7 +900,7 @@ static int attach_to_pi_owner(u32 uval, union futex_key *key,
 	if (!p)
 		return -ESRCH;
 
-	if (!p->mm) {
+	if (unlikely(p->flags & PF_KTHREAD)) {
 		put_task_struct(p);
 		return -EPERM;
 	}
diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c
index 6f1c7a5..eb9a4ea 100644
--- a/kernel/irq/chip.c
+++ b/kernel/irq/chip.c
@@ -948,6 +948,22 @@ int irq_chip_retrigger_hierarchy(struct irq_data *data)
 
 	return -ENOSYS;
 }
+
+/**
+ * irq_chip_set_wake_parent - Set/reset wake-up on the parent interrupt
+ * @data:	Pointer to interrupt specific data
+ * @on:		Whether to set or reset the wake-up capability of this irq
+ *
+ * Conditional, as the underlying parent chip might not implement it.
+ */
+int irq_chip_set_wake_parent(struct irq_data *data, unsigned int on)
+{
+	data = data->parent_data;
+	if (data->chip->irq_set_wake)
+		return data->chip->irq_set_wake(data, on);
+
+	return -ENOSYS;
+}
 #endif
 
 /**
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index 196a06f..e68932b 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -68,14 +68,20 @@ static void __synchronize_hardirq(struct irq_desc *desc)
  *	Do not use this for shutdown scenarios where you must be sure
  *	that all parts (hardirq and threaded handler) have completed.
  *
+ *	Returns: false if a threaded handler is active.
+ *
  *	This function may be called - with care - from IRQ context.
  */
-void synchronize_hardirq(unsigned int irq)
+bool synchronize_hardirq(unsigned int irq)
 {
 	struct irq_desc *desc = irq_to_desc(irq);
 
-	if (desc)
+	if (desc) {
 		__synchronize_hardirq(desc);
+		return !atomic_read(&desc->threads_active);
+	}
+
+	return true;
 }
 EXPORT_SYMBOL(synchronize_hardirq);
 
@@ -440,6 +446,32 @@ void disable_irq(unsigned int irq)
 }
 EXPORT_SYMBOL(disable_irq);
 
+/**
+ *	disable_hardirq - disables an irq and waits for hardirq completion
+ *	@irq: Interrupt to disable
+ *
+ *	Disable the selected interrupt line.  Enables and Disables are
+ *	nested.
+ *	This function waits for any pending hard IRQ handlers for this
+ *	interrupt to complete before returning. If you use this function while
+ *	holding a resource the hard IRQ handler may need you will deadlock.
+ *
+ *	When used to optimistically disable an interrupt from atomic context
+ *	the return value must be checked.
+ *
+ *	Returns: false if a threaded handler is active.
+ *
+ *	This function may be called - with care - from IRQ context.
+ */
+bool disable_hardirq(unsigned int irq)
+{
+	if (!__disable_irq_nosync(irq))
+		return synchronize_hardirq(irq);
+
+	return false;
+}
+EXPORT_SYMBOL_GPL(disable_hardirq);
+
 void __enable_irq(struct irq_desc *desc, unsigned int irq)
 {
 	switch (desc->depth) {
@@ -1474,8 +1506,13 @@ int request_threaded_irq(unsigned int irq, irq_handler_t handler,
 	 * otherwise we'll have trouble later trying to figure out
 	 * which interrupt is which (messes up the interrupt freeing
 	 * logic etc).
+	 *
+	 * Also IRQF_COND_SUSPEND only makes sense for shared interrupts and
+	 * it cannot be set along with IRQF_NO_SUSPEND.
 	 */
-	if ((irqflags & IRQF_SHARED) && !dev_id)
+	if (((irqflags & IRQF_SHARED) && !dev_id) ||
+	    (!(irqflags & IRQF_SHARED) && (irqflags & IRQF_COND_SUSPEND)) ||
+	    ((irqflags & IRQF_NO_SUSPEND) && (irqflags & IRQF_COND_SUSPEND)))
 		return -EINVAL;
 
 	desc = irq_to_desc(irq);
@@ -1761,3 +1798,94 @@ int request_percpu_irq(unsigned int irq, irq_handler_t handler,
 
 	return retval;
 }
+
+/**
+ *	irq_get_irqchip_state - returns the irqchip state of a interrupt.
+ *	@irq: Interrupt line that is forwarded to a VM
+ *	@which: One of IRQCHIP_STATE_* the caller wants to know about
+ *	@state: a pointer to a boolean where the state is to be storeed
+ *
+ *	This call snapshots the internal irqchip state of an
+ *	interrupt, returning into @state the bit corresponding to
+ *	stage @which
+ *
+ *	This function should be called with preemption disabled if the
+ *	interrupt controller has per-cpu registers.
+ */
+int irq_get_irqchip_state(unsigned int irq, enum irqchip_irq_state which,
+			  bool *state)
+{
+	struct irq_desc *desc;
+	struct irq_data *data;
+	struct irq_chip *chip;
+	unsigned long flags;
+	int err = -EINVAL;
+
+	desc = irq_get_desc_buslock(irq, &flags, 0);
+	if (!desc)
+		return err;
+
+	data = irq_desc_get_irq_data(desc);
+
+	do {
+		chip = irq_data_get_irq_chip(data);
+		if (chip->irq_get_irqchip_state)
+			break;
+#ifdef CONFIG_IRQ_DOMAIN_HIERARCHY
+		data = data->parent_data;
+#else
+		data = NULL;
+#endif
+	} while (data);
+
+	if (data)
+		err = chip->irq_get_irqchip_state(data, which, state);
+
+	irq_put_desc_busunlock(desc, flags);
+	return err;
+}
+
+/**
+ *	irq_set_irqchip_state - set the state of a forwarded interrupt.
+ *	@irq: Interrupt line that is forwarded to a VM
+ *	@which: State to be restored (one of IRQCHIP_STATE_*)
+ *	@val: Value corresponding to @which
+ *
+ *	This call sets the internal irqchip state of an interrupt,
+ *	depending on the value of @which.
+ *
+ *	This function should be called with preemption disabled if the
+ *	interrupt controller has per-cpu registers.
+ */
+int irq_set_irqchip_state(unsigned int irq, enum irqchip_irq_state which,
+			  bool val)
+{
+	struct irq_desc *desc;
+	struct irq_data *data;
+	struct irq_chip *chip;
+	unsigned long flags;
+	int err = -EINVAL;
+
+	desc = irq_get_desc_buslock(irq, &flags, 0);
+	if (!desc)
+		return err;
+
+	data = irq_desc_get_irq_data(desc);
+
+	do {
+		chip = irq_data_get_irq_chip(data);
+		if (chip->irq_set_irqchip_state)
+			break;
+#ifdef CONFIG_IRQ_DOMAIN_HIERARCHY
+		data = data->parent_data;
+#else
+		data = NULL;
+#endif
+	} while (data);
+
+	if (data)
+		err = chip->irq_set_irqchip_state(data, which, val);
+
+	irq_put_desc_busunlock(desc, flags);
+	return err;
+}
diff --git a/kernel/irq/msi.c b/kernel/irq/msi.c
index 3e18163..474de5c 100644
--- a/kernel/irq/msi.c
+++ b/kernel/irq/msi.c
@@ -310,8 +310,15 @@ void msi_domain_free_irqs(struct irq_domain *domain, struct device *dev)
 	struct msi_desc *desc;
 
 	for_each_msi_entry(desc, dev) {
-		irq_domain_free_irqs(desc->irq, desc->nvec_used);
-		desc->irq = 0;
+		/*
+		 * We might have failed to allocate an MSI early
+		 * enough that there is no IRQ associated to this
+		 * entry. If that's the case, don't do anything.
+		 */
+		if (desc->irq) {
+			irq_domain_free_irqs(desc->irq, desc->nvec_used);
+			desc->irq = 0;
+		}
 	}
 }
 
diff --git a/kernel/irq/pm.c b/kernel/irq/pm.c
index 3ca5325..5204a6d 100644
--- a/kernel/irq/pm.c
+++ b/kernel/irq/pm.c
@@ -43,9 +43,12 @@ void irq_pm_install_action(struct irq_desc *desc, struct irqaction *action)
 
 	if (action->flags & IRQF_NO_SUSPEND)
 		desc->no_suspend_depth++;
+	else if (action->flags & IRQF_COND_SUSPEND)
+		desc->cond_suspend_depth++;
 
 	WARN_ON_ONCE(desc->no_suspend_depth &&
-		     desc->no_suspend_depth != desc->nr_actions);
+		     (desc->no_suspend_depth +
+			desc->cond_suspend_depth) != desc->nr_actions);
 }
 
 /*
@@ -61,6 +64,8 @@ void irq_pm_remove_action(struct irq_desc *desc, struct irqaction *action)
 
 	if (action->flags & IRQF_NO_SUSPEND)
 		desc->no_suspend_depth--;
+	else if (action->flags & IRQF_COND_SUSPEND)
+		desc->cond_suspend_depth--;
 }
 
 static bool suspend_device_irq(struct irq_desc *desc, int irq)
diff --git a/kernel/livepatch/core.c b/kernel/livepatch/core.c
index ff7f47d..3f9f1d6 100644
--- a/kernel/livepatch/core.c
+++ b/kernel/livepatch/core.c
@@ -89,16 +89,28 @@ static bool klp_is_object_loaded(struct klp_object *obj)
 /* sets obj->mod if object is not vmlinux and module is found */
 static void klp_find_object_module(struct klp_object *obj)
 {
+	struct module *mod;
+
 	if (!klp_is_module(obj))
 		return;
 
 	mutex_lock(&module_mutex);
 	/*
-	 * We don't need to take a reference on the module here because we have
-	 * the klp_mutex, which is also taken by the module notifier.  This
-	 * prevents any module from unloading until we release the klp_mutex.
+	 * We do not want to block removal of patched modules and therefore
+	 * we do not take a reference here. The patches are removed by
+	 * a going module handler instead.
+	 */
+	mod = find_module(obj->name);
+	/*
+	 * Do not mess work of the module coming and going notifiers.
+	 * Note that the patch might still be needed before the going handler
+	 * is called. Module functions can be called even in the GOING state
+	 * until mod->exit() finishes. This is especially important for
+	 * patches that modify semantic of the functions.
 	 */
-	obj->mod = find_module(obj->name);
+	if (mod && mod->klp_alive)
+		obj->mod = mod;
+
 	mutex_unlock(&module_mutex);
 }
 
@@ -248,11 +260,12 @@ static int klp_find_external_symbol(struct module *pmod, const char *name,
 	/* first, check if it's an exported symbol */
 	preempt_disable();
 	sym = find_symbol(name, NULL, NULL, true, true);
-	preempt_enable();
 	if (sym) {
 		*addr = sym->value;
+		preempt_enable();
 		return 0;
 	}
+	preempt_enable();
 
 	/* otherwise check if it's in another .o within the patch module */
 	return klp_find_object_symbol(pmod->name, name, addr);
@@ -314,12 +327,12 @@ static void notrace klp_ftrace_handler(unsigned long ip,
 	rcu_read_lock();
 	func = list_first_or_null_rcu(&ops->func_stack, struct klp_func,
 				      stack_node);
-	rcu_read_unlock();
-
 	if (WARN_ON_ONCE(!func))
-		return;
+		goto unlock;
 
 	klp_arch_set_pc(regs, (unsigned long)func->new_func);
+unlock:
+	rcu_read_unlock();
 }
 
 static int klp_disable_func(struct klp_func *func)
@@ -731,7 +744,7 @@ static int klp_init_func(struct klp_object *obj, struct klp_func *func)
 	func->state = KLP_DISABLED;
 
 	return kobject_init_and_add(&func->kobj, &klp_ktype_func,
-				    obj->kobj, func->old_name);
+				    obj->kobj, "%s", func->old_name);
 }
 
 /* parts of the initialization that is done only when the object is loaded */
@@ -766,6 +779,7 @@ static int klp_init_object(struct klp_patch *patch, struct klp_object *obj)
 		return -EINVAL;
 
 	obj->state = KLP_DISABLED;
+	obj->mod = NULL;
 
 	klp_find_object_module(obj);
 
@@ -807,7 +821,7 @@ static int klp_init_patch(struct klp_patch *patch)
 	patch->state = KLP_DISABLED;
 
 	ret = kobject_init_and_add(&patch->kobj, &klp_ktype_patch,
-				   klp_root_kobj, patch->mod->name);
+				   klp_root_kobj, "%s", patch->mod->name);
 	if (ret)
 		goto unlock;
 
@@ -960,6 +974,15 @@ static int klp_module_notify(struct notifier_block *nb, unsigned long action,
 
 	mutex_lock(&klp_mutex);
 
+	/*
+	 * Each module has to know that the notifier has been called.
+	 * We never know what module will get patched by a new patch.
+	 */
+	if (action == MODULE_STATE_COMING)
+		mod->klp_alive = true;
+	else /* MODULE_STATE_GOING */
+		mod->klp_alive = false;
+
 	list_for_each_entry(patch, &klp_patches, list) {
 		for (obj = patch->objs; obj->funcs; obj++) {
 			if (!klp_is_module(obj) || strcmp(obj->name, mod->name))
diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c
index 88d0d44..ba77ab5 100644
--- a/kernel/locking/lockdep.c
+++ b/kernel/locking/lockdep.c
@@ -633,7 +633,7 @@ static int count_matching_names(struct lock_class *new_class)
 	if (!new_class->name)
 		return 0;
 
-	list_for_each_entry(class, &all_lock_classes, lock_entry) {
+	list_for_each_entry_rcu(class, &all_lock_classes, lock_entry) {
 		if (new_class->key - new_class->subclass == class->key)
 			return class->name_version;
 		if (class->name && !strcmp(class->name, new_class->name))
@@ -700,10 +700,12 @@ look_up_lock_class(struct lockdep_map *lock, unsigned int subclass)
 	hash_head = classhashentry(key);
 
 	/*
-	 * We can walk the hash lockfree, because the hash only
-	 * grows, and we are careful when adding entries to the end:
+	 * We do an RCU walk of the hash, see lockdep_free_key_range().
 	 */
-	list_for_each_entry(class, hash_head, hash_entry) {
+	if (DEBUG_LOCKS_WARN_ON(!irqs_disabled()))
+		return NULL;
+
+	list_for_each_entry_rcu(class, hash_head, hash_entry) {
 		if (class->key == key) {
 			/*
 			 * Huh! same key, different name? Did someone trample
@@ -728,7 +730,8 @@ register_lock_class(struct lockdep_map *lock, unsigned int subclass, int force)
 	struct lockdep_subclass_key *key;
 	struct list_head *hash_head;
 	struct lock_class *class;
-	unsigned long flags;
+
+	DEBUG_LOCKS_WARN_ON(!irqs_disabled());
 
 	class = look_up_lock_class(lock, subclass);
 	if (likely(class))
@@ -750,28 +753,26 @@ register_lock_class(struct lockdep_map *lock, unsigned int subclass, int force)
 	key = lock->key->subkeys + subclass;
 	hash_head = classhashentry(key);
 
-	raw_local_irq_save(flags);
 	if (!graph_lock()) {
-		raw_local_irq_restore(flags);
 		return NULL;
 	}
 	/*
 	 * We have to do the hash-walk again, to avoid races
 	 * with another CPU:
 	 */
-	list_for_each_entry(class, hash_head, hash_entry)
+	list_for_each_entry_rcu(class, hash_head, hash_entry) {
 		if (class->key == key)
 			goto out_unlock_set;
+	}
+
 	/*
 	 * Allocate a new key from the static array, and add it to
 	 * the hash:
 	 */
 	if (nr_lock_classes >= MAX_LOCKDEP_KEYS) {
 		if (!debug_locks_off_graph_unlock()) {
-			raw_local_irq_restore(flags);
 			return NULL;
 		}
-		raw_local_irq_restore(flags);
 
 		print_lockdep_off("BUG: MAX_LOCKDEP_KEYS too low!");
 		dump_stack();
@@ -798,7 +799,6 @@ register_lock_class(struct lockdep_map *lock, unsigned int subclass, int force)
 
 	if (verbose(class)) {
 		graph_unlock();
-		raw_local_irq_restore(flags);
 
 		printk("\nnew class %p: %s", class->key, class->name);
 		if (class->name_version > 1)
@@ -806,15 +806,12 @@ register_lock_class(struct lockdep_map *lock, unsigned int subclass, int force)
 		printk("\n");
 		dump_stack();
 
-		raw_local_irq_save(flags);
 		if (!graph_lock()) {
-			raw_local_irq_restore(flags);
 			return NULL;
 		}
 	}
 out_unlock_set:
 	graph_unlock();
-	raw_local_irq_restore(flags);
 
 out_set_class_cache:
 	if (!subclass || force)
@@ -870,11 +867,9 @@ static int add_lock_to_list(struct lock_class *class, struct lock_class *this,
 	entry->distance = distance;
 	entry->trace = *trace;
 	/*
-	 * Since we never remove from the dependency list, the list can
-	 * be walked lockless by other CPUs, it's only allocation
-	 * that must be protected by the spinlock. But this also means
-	 * we must make new entries visible only once writes to the
-	 * entry become visible - hence the RCU op:
+	 * Both allocation and removal are done under the graph lock; but
+	 * iteration is under RCU-sched; see look_up_lock_class() and
+	 * lockdep_free_key_range().
 	 */
 	list_add_tail_rcu(&entry->entry, head);
 
@@ -1025,7 +1020,9 @@ static int __bfs(struct lock_list *source_entry,
 		else
 			head = &lock->class->locks_before;
 
-		list_for_each_entry(entry, head, entry) {
+		DEBUG_LOCKS_WARN_ON(!irqs_disabled());
+
+		list_for_each_entry_rcu(entry, head, entry) {
 			if (!lock_accessed(entry)) {
 				unsigned int cq_depth;
 				mark_lock_accessed(entry, lock);
@@ -2022,7 +2019,7 @@ static inline int lookup_chain_cache(struct task_struct *curr,
 	 * We can walk it lock-free, because entries only get added
 	 * to the hash:
 	 */
-	list_for_each_entry(chain, hash_head, entry) {
+	list_for_each_entry_rcu(chain, hash_head, entry) {
 		if (chain->chain_key == chain_key) {
 cache_hit:
 			debug_atomic_inc(chain_lookup_hits);
@@ -2996,8 +2993,18 @@ void lockdep_init_map(struct lockdep_map *lock, const char *name,
 	if (unlikely(!debug_locks))
 		return;
 
-	if (subclass)
+	if (subclass) {
+		unsigned long flags;
+
+		if (DEBUG_LOCKS_WARN_ON(current->lockdep_recursion))
+			return;
+
+		raw_local_irq_save(flags);
+		current->lockdep_recursion = 1;
 		register_lock_class(lock, subclass, 1);
+		current->lockdep_recursion = 0;
+		raw_local_irq_restore(flags);
+	}
 }
 EXPORT_SYMBOL_GPL(lockdep_init_map);
 
@@ -3887,9 +3894,17 @@ static inline int within(const void *addr, void *start, unsigned long size)
 	return addr >= start && addr < start + size;
 }
 
+/*
+ * Used in module.c to remove lock classes from memory that is going to be
+ * freed; and possibly re-used by other modules.
+ *
+ * We will have had one sync_sched() before getting here, so we're guaranteed
+ * nobody will look up these exact classes -- they're properly dead but still
+ * allocated.
+ */
 void lockdep_free_key_range(void *start, unsigned long size)
 {
-	struct lock_class *class, *next;
+	struct lock_class *class;
 	struct list_head *head;
 	unsigned long flags;
 	int i;
@@ -3905,7 +3920,7 @@ void lockdep_free_key_range(void *start, unsigned long size)
 		head = classhash_table + i;
 		if (list_empty(head))
 			continue;
-		list_for_each_entry_safe(class, next, head, hash_entry) {
+		list_for_each_entry_rcu(class, head, hash_entry) {
 			if (within(class->key, start, size))
 				zap_class(class);
 			else if (within(class->name, start, size))
@@ -3916,11 +3931,25 @@ void lockdep_free_key_range(void *start, unsigned long size)
 	if (locked)
 		graph_unlock();
 	raw_local_irq_restore(flags);
+
+	/*
+	 * Wait for any possible iterators from look_up_lock_class() to pass
+	 * before continuing to free the memory they refer to.
+	 *
+	 * sync_sched() is sufficient because the read-side is IRQ disable.
+	 */
+	synchronize_sched();
+
+	/*
+	 * XXX at this point we could return the resources to the pool;
+	 * instead we leak them. We would need to change to bitmap allocators
+	 * instead of the linear allocators we have now.
+	 */
 }
 
 void lockdep_reset_lock(struct lockdep_map *lock)
 {
-	struct lock_class *class, *next;
+	struct lock_class *class;
 	struct list_head *head;
 	unsigned long flags;
 	int i, j;
@@ -3948,7 +3977,7 @@ void lockdep_reset_lock(struct lockdep_map *lock)
 		head = classhash_table + i;
 		if (list_empty(head))
 			continue;
-		list_for_each_entry_safe(class, next, head, hash_entry) {
+		list_for_each_entry_rcu(class, head, hash_entry) {
 			int match = 0;
 
 			for (j = 0; j < NR_LOCKDEP_CACHING_CLASSES; j++)
diff --git a/kernel/locking/mcs_spinlock.h b/kernel/locking/mcs_spinlock.h
index d1fe2ba..75e114b 100644
--- a/kernel/locking/mcs_spinlock.h
+++ b/kernel/locking/mcs_spinlock.h
@@ -78,7 +78,7 @@ void mcs_spin_lock(struct mcs_spinlock **lock, struct mcs_spinlock *node)
 		 */
 		return;
 	}
-	ACCESS_ONCE(prev->next) = node;
+	WRITE_ONCE(prev->next, node);
 
 	/* Wait until the lock holder passes the lock down. */
 	arch_mcs_spin_lock_contended(&node->locked);
@@ -91,7 +91,7 @@ void mcs_spin_lock(struct mcs_spinlock **lock, struct mcs_spinlock *node)
 static inline
 void mcs_spin_unlock(struct mcs_spinlock **lock, struct mcs_spinlock *node)
 {
-	struct mcs_spinlock *next = ACCESS_ONCE(node->next);
+	struct mcs_spinlock *next = READ_ONCE(node->next);
 
 	if (likely(!next)) {
 		/*
@@ -100,7 +100,7 @@ void mcs_spin_unlock(struct mcs_spinlock **lock, struct mcs_spinlock *node)
 		if (likely(cmpxchg(lock, node, NULL) == node))
 			return;
 		/* Wait until the next pointer is set */
-		while (!(next = ACCESS_ONCE(node->next)))
+		while (!(next = READ_ONCE(node->next)))
 			cpu_relax_lowlatency();
 	}
 
diff --git a/kernel/locking/mutex.c b/kernel/locking/mutex.c
index 94674e5..4cccea6 100644
--- a/kernel/locking/mutex.c
+++ b/kernel/locking/mutex.c
@@ -25,7 +25,7 @@
 #include <linux/spinlock.h>
 #include <linux/interrupt.h>
 #include <linux/debug_locks.h>
-#include "mcs_spinlock.h"
+#include <linux/osq_lock.h>
 
 /*
  * In the DEBUG case we are using the "NULL fastpath" for mutexes,
@@ -217,44 +217,35 @@ ww_mutex_set_context_slowpath(struct ww_mutex *lock,
 }
 
 #ifdef CONFIG_MUTEX_SPIN_ON_OWNER
-static inline bool owner_running(struct mutex *lock, struct task_struct *owner)
-{
-	if (lock->owner != owner)
-		return false;
-
-	/*
-	 * Ensure we emit the owner->on_cpu, dereference _after_ checking
-	 * lock->owner still matches owner, if that fails, owner might
-	 * point to free()d memory, if it still matches, the rcu_read_lock()
-	 * ensures the memory stays valid.
-	 */
-	barrier();
-
-	return owner->on_cpu;
-}
-
 /*
  * Look out! "owner" is an entirely speculative pointer
  * access and not reliable.
  */
 static noinline
-int mutex_spin_on_owner(struct mutex *lock, struct task_struct *owner)
+bool mutex_spin_on_owner(struct mutex *lock, struct task_struct *owner)
 {
+	bool ret = true;
+
 	rcu_read_lock();
-	while (owner_running(lock, owner)) {
-		if (need_resched())
+	while (lock->owner == owner) {
+		/*
+		 * Ensure we emit the owner->on_cpu, dereference _after_
+		 * checking lock->owner still matches owner. If that fails,
+		 * owner might point to freed memory. If it still matches,
+		 * the rcu_read_lock() ensures the memory stays valid.
+		 */
+		barrier();
+
+		if (!owner->on_cpu || need_resched()) {
+			ret = false;
 			break;
+		}
 
 		cpu_relax_lowlatency();
 	}
 	rcu_read_unlock();
 
-	/*
-	 * We break out the loop above on need_resched() and when the
-	 * owner changed, which is a sign for heavy contention. Return
-	 * success only when lock->owner is NULL.
-	 */
-	return lock->owner == NULL;
+	return ret;
 }
 
 /*
@@ -269,7 +260,7 @@ static inline int mutex_can_spin_on_owner(struct mutex *lock)
 		return 0;
 
 	rcu_read_lock();
-	owner = ACCESS_ONCE(lock->owner);
+	owner = READ_ONCE(lock->owner);
 	if (owner)
 		retval = owner->on_cpu;
 	rcu_read_unlock();
@@ -343,7 +334,7 @@ static bool mutex_optimistic_spin(struct mutex *lock,
 			 * As such, when deadlock detection needs to be
 			 * performed the optimistic spinning cannot be done.
 			 */
-			if (ACCESS_ONCE(ww->ctx))
+			if (READ_ONCE(ww->ctx))
 				break;
 		}
 
@@ -351,7 +342,7 @@ static bool mutex_optimistic_spin(struct mutex *lock,
 		 * If there's an owner, wait for it to either
 		 * release the lock or go to sleep.
 		 */
-		owner = ACCESS_ONCE(lock->owner);
+		owner = READ_ONCE(lock->owner);
 		if (owner && !mutex_spin_on_owner(lock, owner))
 			break;
 
@@ -490,7 +481,7 @@ static inline int __sched
 __ww_mutex_lock_check_stamp(struct mutex *lock, struct ww_acquire_ctx *ctx)
 {
 	struct ww_mutex *ww = container_of(lock, struct ww_mutex, base);
-	struct ww_acquire_ctx *hold_ctx = ACCESS_ONCE(ww->ctx);
+	struct ww_acquire_ctx *hold_ctx = READ_ONCE(ww->ctx);
 
 	if (!hold_ctx)
 		return 0;
diff --git a/kernel/locking/osq_lock.c b/kernel/locking/osq_lock.c
index c112d00..dc85ee2 100644
--- a/kernel/locking/osq_lock.c
+++ b/kernel/locking/osq_lock.c
@@ -98,7 +98,7 @@ bool osq_lock(struct optimistic_spin_queue *lock)
 
 	prev = decode_cpu(old);
 	node->prev = prev;
-	ACCESS_ONCE(prev->next) = node;
+	WRITE_ONCE(prev->next, node);
 
 	/*
 	 * Normally @prev is untouchable after the above store; because at that
@@ -109,7 +109,7 @@ bool osq_lock(struct optimistic_spin_queue *lock)
 	 * cmpxchg in an attempt to undo our queueing.
 	 */
 
-	while (!ACCESS_ONCE(node->locked)) {
+	while (!READ_ONCE(node->locked)) {
 		/*
 		 * If we need to reschedule bail... so we can block.
 		 */
@@ -148,7 +148,7 @@ unqueue:
 		 * Or we race against a concurrent unqueue()'s step-B, in which
 		 * case its step-C will write us a new @node->prev pointer.
 		 */
-		prev = ACCESS_ONCE(node->prev);
+		prev = READ_ONCE(node->prev);
 	}
 
 	/*
@@ -170,8 +170,8 @@ unqueue:
 	 * it will wait in Step-A.
 	 */
 
-	ACCESS_ONCE(next->prev) = prev;
-	ACCESS_ONCE(prev->next) = next;
+	WRITE_ONCE(next->prev, prev);
+	WRITE_ONCE(prev->next, next);
 
 	return false;
 }
@@ -193,11 +193,11 @@ void osq_unlock(struct optimistic_spin_queue *lock)
 	node = this_cpu_ptr(&osq_node);
 	next = xchg(&node->next, NULL);
 	if (next) {
-		ACCESS_ONCE(next->locked) = 1;
+		WRITE_ONCE(next->locked, 1);
 		return;
 	}
 
 	next = osq_wait_next(lock, node, NULL);
 	if (next)
-		ACCESS_ONCE(next->locked) = 1;
+		WRITE_ONCE(next->locked, 1);
 }
diff --git a/kernel/locking/rtmutex.c b/kernel/locking/rtmutex.c
index e16e554..b732793 100644
--- a/kernel/locking/rtmutex.c
+++ b/kernel/locking/rtmutex.c
@@ -349,7 +349,7 @@ static inline struct rt_mutex *task_blocked_on_lock(struct task_struct *p)
  *
  * @task:	the task owning the mutex (owner) for which a chain walk is
  *		probably needed
- * @deadlock_detect: do we have to carry out deadlock detection?
+ * @chwalk:	do we have to carry out deadlock detection?
  * @orig_lock:	the mutex (can be NULL if we are walking the chain to recheck
  *		things for a task that has just got its priority adjusted, and
  *		is waiting on a mutex)
@@ -1193,6 +1193,7 @@ rt_mutex_slowlock(struct rt_mutex *lock, int state,
 		ret = __rt_mutex_slowlock(lock, state, timeout, &waiter);
 
 	if (unlikely(ret)) {
+		__set_current_state(TASK_RUNNING);
 		if (rt_mutex_has_waiters(lock))
 			remove_waiter(lock, &waiter);
 		rt_mutex_handle_deadlock(ret, chwalk, &waiter);
diff --git a/kernel/locking/rwsem-spinlock.c b/kernel/locking/rwsem-spinlock.c
index 2555ae1..3a50485 100644
--- a/kernel/locking/rwsem-spinlock.c
+++ b/kernel/locking/rwsem-spinlock.c
@@ -85,6 +85,13 @@ __rwsem_do_wake(struct rw_semaphore *sem, int wakewrite)
 
 		list_del(&waiter->list);
 		tsk = waiter->task;
+		/*
+		 * Make sure we do not wakeup the next reader before
+		 * setting the nil condition to grant the next reader;
+		 * otherwise we could miss the wakeup on the other
+		 * side and end up sleeping again. See the pairing
+		 * in rwsem_down_read_failed().
+		 */
 		smp_mb();
 		waiter->task = NULL;
 		wake_up_process(tsk);
diff --git a/kernel/locking/rwsem-xadd.c b/kernel/locking/rwsem-xadd.c
index 2f7cc40..3417d01 100644
--- a/kernel/locking/rwsem-xadd.c
+++ b/kernel/locking/rwsem-xadd.c
@@ -14,8 +14,9 @@
 #include <linux/init.h>
 #include <linux/export.h>
 #include <linux/sched/rt.h>
+#include <linux/osq_lock.h>
 
-#include "mcs_spinlock.h"
+#include "rwsem.h"
 
 /*
  * Guide to the rw_semaphore's count field for common values.
@@ -186,6 +187,13 @@ __rwsem_do_wake(struct rw_semaphore *sem, enum rwsem_wake_type wake_type)
 		waiter = list_entry(next, struct rwsem_waiter, list);
 		next = waiter->list.next;
 		tsk = waiter->task;
+		/*
+		 * Make sure we do not wakeup the next reader before
+		 * setting the nil condition to grant the next reader;
+		 * otherwise we could miss the wakeup on the other
+		 * side and end up sleeping again. See the pairing
+		 * in rwsem_down_read_failed().
+		 */
 		smp_mb();
 		waiter->task = NULL;
 		wake_up_process(tsk);
@@ -258,6 +266,7 @@ static inline bool rwsem_try_write_lock(long count, struct rw_semaphore *sem)
 		    RWSEM_ACTIVE_WRITE_BIAS) == RWSEM_WAITING_BIAS) {
 		if (!list_is_singular(&sem->wait_list))
 			rwsem_atomic_update(RWSEM_WAITING_BIAS, sem);
+		rwsem_set_owner(sem);
 		return true;
 	}
 
@@ -270,15 +279,17 @@ static inline bool rwsem_try_write_lock(long count, struct rw_semaphore *sem)
  */
 static inline bool rwsem_try_write_lock_unqueued(struct rw_semaphore *sem)
 {
-	long old, count = ACCESS_ONCE(sem->count);
+	long old, count = READ_ONCE(sem->count);
 
 	while (true) {
 		if (!(count == 0 || count == RWSEM_WAITING_BIAS))
 			return false;
 
 		old = cmpxchg(&sem->count, count, count + RWSEM_ACTIVE_WRITE_BIAS);
-		if (old == count)
+		if (old == count) {
+			rwsem_set_owner(sem);
 			return true;
+		}
 
 		count = old;
 	}
@@ -287,60 +298,67 @@ static inline bool rwsem_try_write_lock_unqueued(struct rw_semaphore *sem)
 static inline bool rwsem_can_spin_on_owner(struct rw_semaphore *sem)
 {
 	struct task_struct *owner;
-	bool on_cpu = false;
+	bool ret = true;
 
 	if (need_resched())
 		return false;
 
 	rcu_read_lock();
-	owner = ACCESS_ONCE(sem->owner);
-	if (owner)
-		on_cpu = owner->on_cpu;
-	rcu_read_unlock();
-
-	/*
-	 * If sem->owner is not set, yet we have just recently entered the
-	 * slowpath, then there is a possibility reader(s) may have the lock.
-	 * To be safe, avoid spinning in these situations.
-	 */
-	return on_cpu;
-}
-
-static inline bool owner_running(struct rw_semaphore *sem,
-				 struct task_struct *owner)
-{
-	if (sem->owner != owner)
-		return false;
-
-	/*
-	 * Ensure we emit the owner->on_cpu, dereference _after_ checking
-	 * sem->owner still matches owner, if that fails, owner might
-	 * point to free()d memory, if it still matches, the rcu_read_lock()
-	 * ensures the memory stays valid.
-	 */
-	barrier();
+	owner = READ_ONCE(sem->owner);
+	if (!owner) {
+		long count = READ_ONCE(sem->count);
+		/*
+		 * If sem->owner is not set, yet we have just recently entered the
+		 * slowpath with the lock being active, then there is a possibility
+		 * reader(s) may have the lock. To be safe, bail spinning in these
+		 * situations.
+		 */
+		if (count & RWSEM_ACTIVE_MASK)
+			ret = false;
+		goto done;
+	}
 
-	return owner->on_cpu;
+	ret = owner->on_cpu;
+done:
+	rcu_read_unlock();
+	return ret;
 }
 
 static noinline
 bool rwsem_spin_on_owner(struct rw_semaphore *sem, struct task_struct *owner)
 {
+	long count;
+
 	rcu_read_lock();
-	while (owner_running(sem, owner)) {
-		if (need_resched())
-			break;
+	while (sem->owner == owner) {
+		/*
+		 * Ensure we emit the owner->on_cpu, dereference _after_
+		 * checking sem->owner still matches owner, if that fails,
+		 * owner might point to free()d memory, if it still matches,
+		 * the rcu_read_lock() ensures the memory stays valid.
+		 */
+		barrier();
+
+		/* abort spinning when need_resched or owner is not running */
+		if (!owner->on_cpu || need_resched()) {
+			rcu_read_unlock();
+			return false;
+		}
 
 		cpu_relax_lowlatency();
 	}
 	rcu_read_unlock();
 
+	if (READ_ONCE(sem->owner))
+		return true; /* new owner, continue spinning */
+
 	/*
-	 * We break out the loop above on need_resched() or when the
-	 * owner changed, which is a sign for heavy contention. Return
-	 * success only when sem->owner is NULL.
+	 * When the owner is not set, the lock could be free or
+	 * held by readers. Check the counter to verify the
+	 * state.
 	 */
-	return sem->owner == NULL;
+	count = READ_ONCE(sem->count);
+	return (count == 0 || count == RWSEM_WAITING_BIAS);
 }
 
 static bool rwsem_optimistic_spin(struct rw_semaphore *sem)
@@ -358,7 +376,7 @@ static bool rwsem_optimistic_spin(struct rw_semaphore *sem)
 		goto done;
 
 	while (true) {
-		owner = ACCESS_ONCE(sem->owner);
+		owner = READ_ONCE(sem->owner);
 		if (owner && !rwsem_spin_on_owner(sem, owner))
 			break;
 
@@ -432,7 +450,7 @@ struct rw_semaphore __sched *rwsem_down_write_failed(struct rw_semaphore *sem)
 
 	/* we're now waiting on the lock, but no longer actively locking */
 	if (waiting) {
-		count = ACCESS_ONCE(sem->count);
+		count = READ_ONCE(sem->count);
 
 		/*
 		 * If there were already threads queued before us and there are
diff --git a/kernel/locking/rwsem.c b/kernel/locking/rwsem.c
index e2d3bc7..205be0c 100644
--- a/kernel/locking/rwsem.c
+++ b/kernel/locking/rwsem.c
@@ -9,29 +9,9 @@
 #include <linux/sched.h>
 #include <linux/export.h>
 #include <linux/rwsem.h>
-
 #include <linux/atomic.h>
 
-#ifdef CONFIG_RWSEM_SPIN_ON_OWNER
-static inline void rwsem_set_owner(struct rw_semaphore *sem)
-{
-	sem->owner = current;
-}
-
-static inline void rwsem_clear_owner(struct rw_semaphore *sem)
-{
-	sem->owner = NULL;
-}
-
-#else
-static inline void rwsem_set_owner(struct rw_semaphore *sem)
-{
-}
-
-static inline void rwsem_clear_owner(struct rw_semaphore *sem)
-{
-}
-#endif
+#include "rwsem.h"
 
 /*
  * lock for reading
diff --git a/kernel/locking/rwsem.h b/kernel/locking/rwsem.h
new file mode 100644
index 0000000..870ed9a
--- /dev/null
+++ b/kernel/locking/rwsem.h
@@ -0,0 +1,20 @@
+#ifdef CONFIG_RWSEM_SPIN_ON_OWNER
+static inline void rwsem_set_owner(struct rw_semaphore *sem)
+{
+	sem->owner = current;
+}
+
+static inline void rwsem_clear_owner(struct rw_semaphore *sem)
+{
+	sem->owner = NULL;
+}
+
+#else
+static inline void rwsem_set_owner(struct rw_semaphore *sem)
+{
+}
+
+static inline void rwsem_clear_owner(struct rw_semaphore *sem)
+{
+}
+#endif
diff --git a/kernel/module.c b/kernel/module.c
index b34813f..ec53f59 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -56,7 +56,6 @@
 #include <linux/async.h>
 #include <linux/percpu.h>
 #include <linux/kmemleak.h>
-#include <linux/kasan.h>
 #include <linux/jump_label.h>
 #include <linux/pfn.h>
 #include <linux/bsearch.h>
@@ -1814,7 +1813,6 @@ static void unset_module_init_ro_nx(struct module *mod) { }
 void __weak module_memfree(void *module_region)
 {
 	vfree(module_region);
-	kasan_module_free(module_region);
 }
 
 void __weak module_arch_cleanup(struct module *mod)
@@ -1867,7 +1865,7 @@ static void free_module(struct module *mod)
 	kfree(mod->args);
 	percpu_modfree(mod);
 
-	/* Free lock-classes: */
+	/* Free lock-classes; relies on the preceding sync_rcu(). */
 	lockdep_free_key_range(mod->module_core, mod->core_size);
 
 	/* Finally, free the core (containing the module structure) */
@@ -2313,11 +2311,13 @@ static void layout_symtab(struct module *mod, struct load_info *info)
 	info->symoffs = ALIGN(mod->core_size, symsect->sh_addralign ?: 1);
 	info->stroffs = mod->core_size = info->symoffs + ndst * sizeof(Elf_Sym);
 	mod->core_size += strtab_size;
+	mod->core_size = debug_align(mod->core_size);
 
 	/* Put string table section at end of init part of module. */
 	strsect->sh_flags |= SHF_ALLOC;
 	strsect->sh_entsize = get_offset(mod, &mod->init_size, strsect,
 					 info->index.str) | INIT_OFFSET_MASK;
+	mod->init_size = debug_align(mod->init_size);
 	pr_debug("\t%s\n", info->secstrings + strsect->sh_name);
 }
 
@@ -2479,6 +2479,23 @@ static int elf_header_check(struct load_info *info)
 	return 0;
 }
 
+#define COPY_CHUNK_SIZE (16*PAGE_SIZE)
+
+static int copy_chunked_from_user(void *dst, const void __user *usrc, unsigned long len)
+{
+	do {
+		unsigned long n = min(len, COPY_CHUNK_SIZE);
+
+		if (copy_from_user(dst, usrc, n) != 0)
+			return -EFAULT;
+		cond_resched();
+		dst += n;
+		usrc += n;
+		len -= n;
+	} while (len);
+	return 0;
+}
+
 /* Sets info->hdr and info->len. */
 static int copy_module_from_user(const void __user *umod, unsigned long len,
 				  struct load_info *info)
@@ -2498,7 +2515,7 @@ static int copy_module_from_user(const void __user *umod, unsigned long len,
 	if (!info->hdr)
 		return -ENOMEM;
 
-	if (copy_from_user(info->hdr, umod, info->len) != 0) {
+	if (copy_chunked_from_user(info->hdr, umod, info->len) != 0) {
 		vfree(info->hdr);
 		return -EFAULT;
 	}
@@ -3349,9 +3366,6 @@ static int load_module(struct load_info *info, const char __user *uargs,
 	module_bug_cleanup(mod);
 	mutex_unlock(&module_mutex);
 
-	/* Free lock-classes: */
-	lockdep_free_key_range(mod->module_core, mod->core_size);
-
 	/* we can't deallocate the module until we clear memory protection */
 	unset_module_init_ro_nx(mod);
 	unset_module_core_ro_nx(mod);
@@ -3375,6 +3389,9 @@ static int load_module(struct load_info *info, const char __user *uargs,
 	synchronize_rcu();
 	mutex_unlock(&module_mutex);
  free_module:
+	/* Free lock-classes; relies on the preceding sync_rcu() */
+	lockdep_free_key_range(mod->module_core, mod->core_size);
+
 	module_deallocate(mod, info);
  free_copy:
 	free_copy(info);
diff --git a/kernel/power/snapshot.c b/kernel/power/snapshot.c
index c24d5a2..5235dd4 100644
--- a/kernel/power/snapshot.c
+++ b/kernel/power/snapshot.c
@@ -955,25 +955,6 @@ static void mark_nosave_pages(struct memory_bitmap *bm)
 	}
 }
 
-static bool is_nosave_page(unsigned long pfn)
-{
-	struct nosave_region *region;
-
-	list_for_each_entry(region, &nosave_regions, list) {
-		if (pfn >= region->start_pfn && pfn < region->end_pfn) {
-			pr_err("PM: %#010llx in e820 nosave region: "
-			       "[mem %#010llx-%#010llx]\n",
-			       (unsigned long long) pfn << PAGE_SHIFT,
-			       (unsigned long long) region->start_pfn << PAGE_SHIFT,
-			       ((unsigned long long) region->end_pfn << PAGE_SHIFT)
-					- 1);
-			return true;
-		}
-	}
-
-	return false;
-}
-
 /**
  *	create_basic_memory_bitmaps - create bitmaps needed for marking page
  *	frames that should not be saved and free page frames.  The pointers
@@ -2042,7 +2023,7 @@ static int mark_unsafe_pages(struct memory_bitmap *bm)
 	do {
 		pfn = memory_bm_next_pfn(bm);
 		if (likely(pfn != BM_END_OF_MAP)) {
-			if (likely(pfn_valid(pfn)) && !is_nosave_page(pfn))
+			if (likely(pfn_valid(pfn)))
 				swsusp_set_page_free(pfn_to_page(pfn));
 			else
 				return -EFAULT;
diff --git a/kernel/printk/console_cmdline.h b/kernel/printk/console_cmdline.h
index cbd69d8..2ca4a8b 100644
--- a/kernel/printk/console_cmdline.h
+++ b/kernel/printk/console_cmdline.h
@@ -3,7 +3,7 @@
 
 struct console_cmdline
 {
-	char	name[8];			/* Name of the driver	    */
+	char	name[16];			/* Name of the driver	    */
 	int	index;				/* Minor dev. to use	    */
 	char	*options;			/* Options for the driver   */
 #ifdef CONFIG_A11Y_BRAILLE_CONSOLE
diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
index 01cfd69..bb0635b 100644
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -2464,6 +2464,7 @@ void register_console(struct console *newcon)
 	for (i = 0, c = console_cmdline;
 	     i < MAX_CMDLINECONSOLES && c->name[0];
 	     i++, c++) {
+		BUILD_BUG_ON(sizeof(c->name) != sizeof(newcon->name));
 		if (strcmp(c->name, newcon->name) != 0)
 			continue;
 		if (newcon->index >= 0 &&
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index f0f831e..2f7937e 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -306,6 +306,9 @@ __read_mostly int scheduler_running;
  */
 int sysctl_sched_rt_runtime = 950000;
 
+/* cpus with isolated domains */
+cpumask_var_t cpu_isolated_map;
+
 /*
  * this_rq_lock - lock this runqueue and disable interrupts.
  */
@@ -690,6 +693,23 @@ static inline bool got_nohz_idle_kick(void)
 bool sched_can_stop_tick(void)
 {
 	/*
+	 * FIFO realtime policy runs the highest priority task. Other runnable
+	 * tasks are of a lower priority. The scheduler tick does nothing.
+	 */
+	if (current->policy == SCHED_FIFO)
+		return true;
+
+	/*
+	 * Round-robin realtime tasks time slice with other tasks at the same
+	 * realtime priority. Is this task the only one at this priority?
+	 */
+	if (current->policy == SCHED_RR) {
+		struct sched_rt_entity *rt_se = &current->rt;
+
+		return rt_se->run_list.prev == rt_se->run_list.next;
+	}
+
+	/*
 	 * More than one running task need preemption.
 	 * nr_running update is assumed to be visible
 	 * after IPI is sent from wakers.
@@ -996,6 +1016,13 @@ void check_preempt_curr(struct rq *rq, struct task_struct *p, int flags)
 		rq_clock_skip_update(rq, true);
 }
 
+static ATOMIC_NOTIFIER_HEAD(task_migration_notifier);
+
+void register_task_migration_notifier(struct notifier_block *n)
+{
+	atomic_notifier_chain_register(&task_migration_notifier, n);
+}
+
 #ifdef CONFIG_SMP
 void set_task_cpu(struct task_struct *p, unsigned int new_cpu)
 {
@@ -1026,10 +1053,18 @@ void set_task_cpu(struct task_struct *p, unsigned int new_cpu)
 	trace_sched_migrate_task(p, new_cpu);
 
 	if (task_cpu(p) != new_cpu) {
+		struct task_migration_notifier tmn;
+
 		if (p->sched_class->migrate_task_rq)
 			p->sched_class->migrate_task_rq(p, new_cpu);
 		p->se.nr_migrations++;
 		perf_sw_event_sched(PERF_COUNT_SW_CPU_MIGRATIONS, 1, 0);
+
+		tmn.task = p;
+		tmn.from_cpu = task_cpu(p);
+		tmn.to_cpu = new_cpu;
+
+		atomic_notifier_call_chain(&task_migration_notifier, 0, &tmn);
 	}
 
 	__set_task_cpu(p, new_cpu);
@@ -3034,6 +3069,8 @@ void rt_mutex_setprio(struct task_struct *p, int prio)
 	} else {
 		if (dl_prio(oldprio))
 			p->dl.dl_boosted = 0;
+		if (rt_prio(oldprio))
+			p->rt.timeout = 0;
 		p->sched_class = &fair_sched_class;
 	}
 
@@ -5318,36 +5355,13 @@ static int sched_cpu_active(struct notifier_block *nfb,
 static int sched_cpu_inactive(struct notifier_block *nfb,
 					unsigned long action, void *hcpu)
 {
-	unsigned long flags;
-	long cpu = (long)hcpu;
-	struct dl_bw *dl_b;
-
 	switch (action & ~CPU_TASKS_FROZEN) {
 	case CPU_DOWN_PREPARE:
-		set_cpu_active(cpu, false);
-
-		/* explicitly allow suspend */
-		if (!(action & CPU_TASKS_FROZEN)) {
-			bool overflow;
-			int cpus;
-
-			rcu_read_lock_sched();
-			dl_b = dl_bw_of(cpu);
-
-			raw_spin_lock_irqsave(&dl_b->lock, flags);
-			cpus = dl_bw_cpus(cpu);
-			overflow = __dl_overflow(dl_b, cpus, 0, 0);
-			raw_spin_unlock_irqrestore(&dl_b->lock, flags);
-
-			rcu_read_unlock_sched();
-
-			if (overflow)
-				return notifier_from_errno(-EBUSY);
-		}
+		set_cpu_active((long)hcpu, false);
 		return NOTIFY_OK;
+	default:
+		return NOTIFY_DONE;
 	}
-
-	return NOTIFY_DONE;
 }
 
 static int __init migration_init(void)
@@ -5428,17 +5442,6 @@ static int sched_domain_debug_one(struct sched_domain *sd, int cpu, int level,
 			break;
 		}
 
-		/*
-		 * Even though we initialize ->capacity to something semi-sane,
-		 * we leave capacity_orig unset. This allows us to detect if
-		 * domain iteration is still funny without causing /0 traps.
-		 */
-		if (!group->sgc->capacity_orig) {
-			printk(KERN_CONT "\n");
-			printk(KERN_ERR "ERROR: domain->cpu_capacity not set\n");
-			break;
-		}
-
 		if (!cpumask_weight(sched_group_cpus(group))) {
 			printk(KERN_CONT "\n");
 			printk(KERN_ERR "ERROR: empty group\n");
@@ -5811,9 +5814,6 @@ cpu_attach_domain(struct sched_domain *sd, struct root_domain *rd, int cpu)
 	update_top_cache_domain(cpu);
 }
 
-/* cpus with isolated domains */
-static cpumask_var_t cpu_isolated_map;
-
 /* Setup the mask of cpus configured for isolated domains */
 static int __init isolated_cpu_setup(char *str)
 {
@@ -5922,7 +5922,6 @@ build_overlap_sched_groups(struct sched_domain *sd, int cpu)
 		 * die on a /0 trap.
 		 */
 		sg->sgc->capacity = SCHED_CAPACITY_SCALE * cpumask_weight(sg_span);
-		sg->sgc->capacity_orig = sg->sgc->capacity;
 
 		/*
 		 * Make sure the first group of this domain contains the
@@ -6233,6 +6232,7 @@ sd_init(struct sched_domain_topology_level *tl, int cpu)
 	 */
 
 	if (sd->flags & SD_SHARE_CPUCAPACITY) {
+		sd->flags |= SD_PREFER_SIBLING;
 		sd->imbalance_pct = 110;
 		sd->smt_gain = 1178; /* ~15% */
 
@@ -6998,7 +6998,6 @@ static int cpuset_cpu_active(struct notifier_block *nfb, unsigned long action,
 		 */
 
 	case CPU_ONLINE:
-	case CPU_DOWN_FAILED:
 		cpuset_update_active_cpus(true);
 		break;
 	default:
@@ -7010,8 +7009,30 @@ static int cpuset_cpu_active(struct notifier_block *nfb, unsigned long action,
 static int cpuset_cpu_inactive(struct notifier_block *nfb, unsigned long action,
 			       void *hcpu)
 {
-	switch (action) {
+	unsigned long flags;
+	long cpu = (long)hcpu;
+	struct dl_bw *dl_b;
+
+	switch (action & ~CPU_TASKS_FROZEN) {
 	case CPU_DOWN_PREPARE:
+		/* explicitly allow suspend */
+		if (!(action & CPU_TASKS_FROZEN)) {
+			bool overflow;
+			int cpus;
+
+			rcu_read_lock_sched();
+			dl_b = dl_bw_of(cpu);
+
+			raw_spin_lock_irqsave(&dl_b->lock, flags);
+			cpus = dl_bw_cpus(cpu);
+			overflow = __dl_overflow(dl_b, cpus, 0, 0);
+			raw_spin_unlock_irqrestore(&dl_b->lock, flags);
+
+			rcu_read_unlock_sched();
+
+			if (overflow)
+				return notifier_from_errno(-EBUSY);
+		}
 		cpuset_update_active_cpus(false);
 		break;
 	case CPU_DOWN_PREPARE_FROZEN:
@@ -7156,8 +7177,8 @@ void __init sched_init(void)
 		rq->calc_load_active = 0;
 		rq->calc_load_update = jiffies + LOAD_FREQ;
 		init_cfs_rq(&rq->cfs);
-		init_rt_rq(&rq->rt, rq);
-		init_dl_rq(&rq->dl, rq);
+		init_rt_rq(&rq->rt);
+		init_dl_rq(&rq->dl);
 #ifdef CONFIG_FAIR_GROUP_SCHED
 		root_task_group.shares = ROOT_TASK_GROUP_LOAD;
 		INIT_LIST_HEAD(&rq->leaf_cfs_rq_list);
@@ -7197,7 +7218,7 @@ void __init sched_init(void)
 #ifdef CONFIG_SMP
 		rq->sd = NULL;
 		rq->rd = NULL;
-		rq->cpu_capacity = SCHED_CAPACITY_SCALE;
+		rq->cpu_capacity = rq->cpu_capacity_orig = SCHED_CAPACITY_SCALE;
 		rq->post_schedule = 0;
 		rq->active_balance = 0;
 		rq->next_balance = jiffies;
@@ -7796,7 +7817,7 @@ static int sched_rt_global_constraints(void)
 }
 #endif /* CONFIG_RT_GROUP_SCHED */
 
-static int sched_dl_global_constraints(void)
+static int sched_dl_global_validate(void)
 {
 	u64 runtime = global_rt_runtime();
 	u64 period = global_rt_period();
@@ -7897,11 +7918,11 @@ int sched_rt_handler(struct ctl_table *table, int write,
 		if (ret)
 			goto undo;
 
-		ret = sched_rt_global_constraints();
+		ret = sched_dl_global_validate();
 		if (ret)
 			goto undo;
 
-		ret = sched_dl_global_constraints();
+		ret = sched_rt_global_constraints();
 		if (ret)
 			goto undo;
 
diff --git a/kernel/sched/deadline.c b/kernel/sched/deadline.c
index 3fa8fa6..5e95145 100644
--- a/kernel/sched/deadline.c
+++ b/kernel/sched/deadline.c
@@ -69,7 +69,7 @@ void init_dl_bw(struct dl_bw *dl_b)
 	dl_b->total_bw = 0;
 }
 
-void init_dl_rq(struct dl_rq *dl_rq, struct rq *rq)
+void init_dl_rq(struct dl_rq *dl_rq)
 {
 	dl_rq->rb_root = RB_ROOT;
 
@@ -218,6 +218,52 @@ static inline void set_post_schedule(struct rq *rq)
 	rq->post_schedule = has_pushable_dl_tasks(rq);
 }
 
+static struct rq *find_lock_later_rq(struct task_struct *task, struct rq *rq);
+
+static void dl_task_offline_migration(struct rq *rq, struct task_struct *p)
+{
+	struct rq *later_rq = NULL;
+	bool fallback = false;
+
+	later_rq = find_lock_later_rq(p, rq);
+
+	if (!later_rq) {
+		int cpu;
+
+		/*
+		 * If we cannot preempt any rq, fall back to pick any
+		 * online cpu.
+		 */
+		fallback = true;
+		cpu = cpumask_any_and(cpu_active_mask, tsk_cpus_allowed(p));
+		if (cpu >= nr_cpu_ids) {
+			/*
+			 * Fail to find any suitable cpu.
+			 * The task will never come back!
+			 */
+			BUG_ON(dl_bandwidth_enabled());
+
+			/*
+			 * If admission control is disabled we
+			 * try a little harder to let the task
+			 * run.
+			 */
+			cpu = cpumask_any(cpu_active_mask);
+		}
+		later_rq = cpu_rq(cpu);
+		double_lock_balance(rq, later_rq);
+	}
+
+	deactivate_task(rq, p, 0);
+	set_task_cpu(p, later_rq->cpu);
+	activate_task(later_rq, p, ENQUEUE_REPLENISH);
+
+	if (!fallback)
+		resched_curr(later_rq);
+
+	double_unlock_balance(rq, later_rq);
+}
+
 #else
 
 static inline
@@ -514,7 +560,7 @@ static enum hrtimer_restart dl_task_timer(struct hrtimer *timer)
 	unsigned long flags;
 	struct rq *rq;
 
-	rq = task_rq_lock(current, &flags);
+	rq = task_rq_lock(p, &flags);
 
 	/*
 	 * We need to take care of several possible races here:
@@ -536,6 +582,17 @@ static enum hrtimer_restart dl_task_timer(struct hrtimer *timer)
 	sched_clock_tick();
 	update_rq_clock(rq);
 
+#ifdef CONFIG_SMP
+	/*
+	 * If we find that the rq the task was on is no longer
+	 * available, we need to select a new rq.
+	 */
+	if (unlikely(!rq->online)) {
+		dl_task_offline_migration(rq, p);
+		goto unlock;
+	}
+#endif
+
 	/*
 	 * If the throttle happened during sched-out; like:
 	 *
@@ -569,7 +626,7 @@ static enum hrtimer_restart dl_task_timer(struct hrtimer *timer)
 		push_dl_task(rq);
 #endif
 unlock:
-	task_rq_unlock(rq, current, &flags);
+	task_rq_unlock(rq, p, &flags);
 
 	return HRTIMER_NORESTART;
 }
@@ -914,6 +971,12 @@ static void yield_task_dl(struct rq *rq)
 	}
 	update_rq_clock(rq);
 	update_curr_dl(rq);
+	/*
+	 * Tell update_rq_clock() that we've just updated,
+	 * so we don't do microscopic update in schedule()
+	 * and double the fastpath cost.
+	 */
+	rq_clock_skip_update(rq, true);
 }
 
 #ifdef CONFIG_SMP
@@ -1659,14 +1722,6 @@ static void switched_to_dl(struct rq *rq, struct task_struct *p)
 {
 	int check_resched = 1;
 
-	/*
-	 * If p is throttled, don't consider the possibility
-	 * of preempting rq->curr, the check will be done right
-	 * after its runtime will get replenished.
-	 */
-	if (unlikely(p->dl.dl_throttled))
-		return;
-
 	if (task_on_rq_queued(p) && rq->curr != p) {
 #ifdef CONFIG_SMP
 		if (p->nr_cpus_allowed > 1 && rq->dl.overloaded &&
diff --git a/kernel/sched/debug.c b/kernel/sched/debug.c
index 8baaf85..a245c1f 100644
--- a/kernel/sched/debug.c
+++ b/kernel/sched/debug.c
@@ -71,7 +71,7 @@ static void print_cfs_group_stats(struct seq_file *m, int cpu, struct task_group
 	if (!se) {
 		struct sched_avg *avg = &cpu_rq(cpu)->avg;
 		P(avg->runnable_avg_sum);
-		P(avg->runnable_avg_period);
+		P(avg->avg_period);
 		return;
 	}
 
@@ -94,8 +94,10 @@ static void print_cfs_group_stats(struct seq_file *m, int cpu, struct task_group
 	P(se->load.weight);
 #ifdef CONFIG_SMP
 	P(se->avg.runnable_avg_sum);
-	P(se->avg.runnable_avg_period);
+	P(se->avg.running_avg_sum);
+	P(se->avg.avg_period);
 	P(se->avg.load_avg_contrib);
+	P(se->avg.utilization_avg_contrib);
 	P(se->avg.decay_count);
 #endif
 #undef PN
@@ -214,6 +216,8 @@ void print_cfs_rq(struct seq_file *m, int cpu, struct cfs_rq *cfs_rq)
 			cfs_rq->runnable_load_avg);
 	SEQ_printf(m, "  .%-30s: %ld\n", "blocked_load_avg",
 			cfs_rq->blocked_load_avg);
+	SEQ_printf(m, "  .%-30s: %ld\n", "utilization_load_avg",
+			cfs_rq->utilization_load_avg);
 #ifdef CONFIG_FAIR_GROUP_SCHED
 	SEQ_printf(m, "  .%-30s: %ld\n", "tg_load_contrib",
 			cfs_rq->tg_load_contrib);
@@ -636,8 +640,10 @@ void proc_sched_show_task(struct task_struct *p, struct seq_file *m)
 	P(se.load.weight);
 #ifdef CONFIG_SMP
 	P(se.avg.runnable_avg_sum);
-	P(se.avg.runnable_avg_period);
+	P(se.avg.running_avg_sum);
+	P(se.avg.avg_period);
 	P(se.avg.load_avg_contrib);
+	P(se.avg.utilization_avg_contrib);
 	P(se.avg.decay_count);
 #endif
 	P(policy);
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 7ce18f3..ffeaa41 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -670,6 +670,7 @@ static int select_idle_sibling(struct task_struct *p, int cpu);
 static unsigned long task_h_load(struct task_struct *p);
 
 static inline void __update_task_entity_contrib(struct sched_entity *se);
+static inline void __update_task_entity_utilization(struct sched_entity *se);
 
 /* Give new task start runnable values to heavy its load in infant time */
 void init_task_runnable_average(struct task_struct *p)
@@ -677,9 +678,10 @@ void init_task_runnable_average(struct task_struct *p)
 	u32 slice;
 
 	slice = sched_slice(task_cfs_rq(p), &p->se) >> 10;
-	p->se.avg.runnable_avg_sum = slice;
-	p->se.avg.runnable_avg_period = slice;
+	p->se.avg.runnable_avg_sum = p->se.avg.running_avg_sum = slice;
+	p->se.avg.avg_period = slice;
 	__update_task_entity_contrib(&p->se);
+	__update_task_entity_utilization(&p->se);
 }
 #else
 void init_task_runnable_average(struct task_struct *p)
@@ -1196,9 +1198,11 @@ static void task_numa_assign(struct task_numa_env *env,
 static bool load_too_imbalanced(long src_load, long dst_load,
 				struct task_numa_env *env)
 {
-	long imb, old_imb;
-	long orig_src_load, orig_dst_load;
 	long src_capacity, dst_capacity;
+	long orig_src_load;
+	long load_a, load_b;
+	long moved_load;
+	long imb;
 
 	/*
 	 * The load is corrected for the CPU capacity available on each node.
@@ -1211,30 +1215,39 @@ static bool load_too_imbalanced(long src_load, long dst_load,
 	dst_capacity = env->dst_stats.compute_capacity;
 
 	/* We care about the slope of the imbalance, not the direction. */
-	if (dst_load < src_load)
-		swap(dst_load, src_load);
+	load_a = dst_load;
+	load_b = src_load;
+	if (load_a < load_b)
+		swap(load_a, load_b);
 
 	/* Is the difference below the threshold? */
-	imb = dst_load * src_capacity * 100 -
-	      src_load * dst_capacity * env->imbalance_pct;
+	imb = load_a * src_capacity * 100 -
+		load_b * dst_capacity * env->imbalance_pct;
 	if (imb <= 0)
 		return false;
 
 	/*
 	 * The imbalance is above the allowed threshold.
-	 * Compare it with the old imbalance.
+	 * Allow a move that brings us closer to a balanced situation,
+	 * without moving things past the point of balance.
 	 */
 	orig_src_load = env->src_stats.load;
-	orig_dst_load = env->dst_stats.load;
 
-	if (orig_dst_load < orig_src_load)
-		swap(orig_dst_load, orig_src_load);
-
-	old_imb = orig_dst_load * src_capacity * 100 -
-		  orig_src_load * dst_capacity * env->imbalance_pct;
+	/*
+	 * In a task swap, there will be one load moving from src to dst,
+	 * and another moving back. This is the net sum of both moves.
+	 * A simple task move will always have a positive value.
+	 * Allow the move if it brings the system closer to a balanced
+	 * situation, without crossing over the balance point.
+	 */
+	moved_load = orig_src_load - src_load;
 
-	/* Would this change make things worse? */
-	return (imb > old_imb);
+	if (moved_load > 0)
+		/* Moving src -> dst. Did we overshoot balance? */
+		return src_load * dst_capacity < dst_load * src_capacity;
+	else
+		/* Moving dst -> src. Did we overshoot balance? */
+		return dst_load * src_capacity < src_load * dst_capacity;
 }
 
 /*
@@ -1609,9 +1622,11 @@ static void update_task_scan_period(struct task_struct *p,
 	/*
 	 * If there were no record hinting faults then either the task is
 	 * completely idle or all activity is areas that are not of interest
-	 * to automatic numa balancing. Scan slower
+	 * to automatic numa balancing. Related to that, if there were failed
+	 * migration then it implies we are migrating too quickly or the local
+	 * node is overloaded. In either case, scan slower
 	 */
-	if (local + shared == 0) {
+	if (local + shared == 0 || p->numa_faults_locality[2]) {
 		p->numa_scan_period = min(p->numa_scan_period_max,
 			p->numa_scan_period << 1);
 
@@ -1673,7 +1688,7 @@ static u64 numa_get_avg_runtime(struct task_struct *p, u64 *period)
 		*period = now - p->last_task_numa_placement;
 	} else {
 		delta = p->se.avg.runnable_avg_sum;
-		*period = p->se.avg.runnable_avg_period;
+		*period = p->se.avg.avg_period;
 	}
 
 	p->last_sum_exec_runtime = runtime;
@@ -1763,6 +1778,8 @@ static int preferred_group_nid(struct task_struct *p, int nid)
 			}
 		}
 		/* Next round, evaluate the nodes within max_group. */
+		if (!max_faults)
+			break;
 		nodes = max_group;
 	}
 	return nid;
@@ -2080,6 +2097,8 @@ void task_numa_fault(int last_cpupid, int mem_node, int pages, int flags)
 
 	if (migrated)
 		p->numa_pages_migrated += pages;
+	if (flags & TNF_MIGRATE_FAIL)
+		p->numa_faults_locality[2] += pages;
 
 	p->numa_faults[task_faults_idx(NUMA_MEMBUF, mem_node, priv)] += pages;
 	p->numa_faults[task_faults_idx(NUMA_CPUBUF, cpu_node, priv)] += pages;
@@ -2161,8 +2180,10 @@ void task_numa_work(struct callback_head *work)
 		vma = mm->mmap;
 	}
 	for (; vma; vma = vma->vm_next) {
-		if (!vma_migratable(vma) || !vma_policy_mof(vma))
+		if (!vma_migratable(vma) || !vma_policy_mof(vma) ||
+			is_vm_hugetlb_page(vma)) {
 			continue;
+		}
 
 		/*
 		 * Shared library pages mapped by multiple processes are not
@@ -2497,13 +2518,15 @@ static u32 __compute_runnable_contrib(u64 n)
  *   load_avg = u_0` + y*(u_0 + u_1*y + u_2*y^2 + ... )
  *            = u_0 + u_1*y + u_2*y^2 + ... [re-labeling u_i --> u_{i+1}]
  */
-static __always_inline int __update_entity_runnable_avg(u64 now,
+static __always_inline int __update_entity_runnable_avg(u64 now, int cpu,
 							struct sched_avg *sa,
-							int runnable)
+							int runnable,
+							int running)
 {
 	u64 delta, periods;
 	u32 runnable_contrib;
 	int delta_w, decayed = 0;
+	unsigned long scale_freq = arch_scale_freq_capacity(NULL, cpu);
 
 	delta = now - sa->last_runnable_update;
 	/*
@@ -2525,7 +2548,7 @@ static __always_inline int __update_entity_runnable_avg(u64 now,
 	sa->last_runnable_update = now;
 
 	/* delta_w is the amount already accumulated against our next period */
-	delta_w = sa->runnable_avg_period % 1024;
+	delta_w = sa->avg_period % 1024;
 	if (delta + delta_w >= 1024) {
 		/* period roll-over */
 		decayed = 1;
@@ -2538,7 +2561,10 @@ static __always_inline int __update_entity_runnable_avg(u64 now,
 		delta_w = 1024 - delta_w;
 		if (runnable)
 			sa->runnable_avg_sum += delta_w;
-		sa->runnable_avg_period += delta_w;
+		if (running)
+			sa->running_avg_sum += delta_w * scale_freq
+				>> SCHED_CAPACITY_SHIFT;
+		sa->avg_period += delta_w;
 
 		delta -= delta_w;
 
@@ -2548,20 +2574,28 @@ static __always_inline int __update_entity_runnable_avg(u64 now,
 
 		sa->runnable_avg_sum = decay_load(sa->runnable_avg_sum,
 						  periods + 1);
-		sa->runnable_avg_period = decay_load(sa->runnable_avg_period,
+		sa->running_avg_sum = decay_load(sa->running_avg_sum,
+						  periods + 1);
+		sa->avg_period = decay_load(sa->avg_period,
 						     periods + 1);
 
 		/* Efficiently calculate \sum (1..n_period) 1024*y^i */
 		runnable_contrib = __compute_runnable_contrib(periods);
 		if (runnable)
 			sa->runnable_avg_sum += runnable_contrib;
-		sa->runnable_avg_period += runnable_contrib;
+		if (running)
+			sa->running_avg_sum += runnable_contrib * scale_freq
+				>> SCHED_CAPACITY_SHIFT;
+		sa->avg_period += runnable_contrib;
 	}
 
 	/* Remainder of delta accrued against u_0` */
 	if (runnable)
 		sa->runnable_avg_sum += delta;
-	sa->runnable_avg_period += delta;
+	if (running)
+		sa->running_avg_sum += delta * scale_freq
+			>> SCHED_CAPACITY_SHIFT;
+	sa->avg_period += delta;
 
 	return decayed;
 }
@@ -2578,6 +2612,8 @@ static inline u64 __synchronize_entity_decay(struct sched_entity *se)
 		return 0;
 
 	se->avg.load_avg_contrib = decay_load(se->avg.load_avg_contrib, decays);
+	se->avg.utilization_avg_contrib =
+		decay_load(se->avg.utilization_avg_contrib, decays);
 
 	return decays;
 }
@@ -2613,7 +2649,7 @@ static inline void __update_tg_runnable_avg(struct sched_avg *sa,
 
 	/* The fraction of a cpu used by this cfs_rq */
 	contrib = div_u64((u64)sa->runnable_avg_sum << NICE_0_SHIFT,
-			  sa->runnable_avg_period + 1);
+			  sa->avg_period + 1);
 	contrib -= cfs_rq->tg_runnable_contrib;
 
 	if (abs(contrib) > cfs_rq->tg_runnable_contrib / 64) {
@@ -2666,7 +2702,8 @@ static inline void __update_group_entity_contrib(struct sched_entity *se)
 
 static inline void update_rq_runnable_avg(struct rq *rq, int runnable)
 {
-	__update_entity_runnable_avg(rq_clock_task(rq), &rq->avg, runnable);
+	__update_entity_runnable_avg(rq_clock_task(rq), cpu_of(rq), &rq->avg,
+			runnable, runnable);
 	__update_tg_runnable_avg(&rq->avg, &rq->cfs);
 }
 #else /* CONFIG_FAIR_GROUP_SCHED */
@@ -2684,7 +2721,7 @@ static inline void __update_task_entity_contrib(struct sched_entity *se)
 
 	/* avoid overflowing a 32-bit type w/ SCHED_LOAD_SCALE */
 	contrib = se->avg.runnable_avg_sum * scale_load_down(se->load.weight);
-	contrib /= (se->avg.runnable_avg_period + 1);
+	contrib /= (se->avg.avg_period + 1);
 	se->avg.load_avg_contrib = scale_load(contrib);
 }
 
@@ -2703,6 +2740,30 @@ static long __update_entity_load_avg_contrib(struct sched_entity *se)
 	return se->avg.load_avg_contrib - old_contrib;
 }
 
+
+static inline void __update_task_entity_utilization(struct sched_entity *se)
+{
+	u32 contrib;
+
+	/* avoid overflowing a 32-bit type w/ SCHED_LOAD_SCALE */
+	contrib = se->avg.running_avg_sum * scale_load_down(SCHED_LOAD_SCALE);
+	contrib /= (se->avg.avg_period + 1);
+	se->avg.utilization_avg_contrib = scale_load(contrib);
+}
+
+static long __update_entity_utilization_avg_contrib(struct sched_entity *se)
+{
+	long old_contrib = se->avg.utilization_avg_contrib;
+
+	if (entity_is_task(se))
+		__update_task_entity_utilization(se);
+	else
+		se->avg.utilization_avg_contrib =
+					group_cfs_rq(se)->utilization_load_avg;
+
+	return se->avg.utilization_avg_contrib - old_contrib;
+}
+
 static inline void subtract_blocked_load_contrib(struct cfs_rq *cfs_rq,
 						 long load_contrib)
 {
@@ -2719,7 +2780,8 @@ static inline void update_entity_load_avg(struct sched_entity *se,
 					  int update_cfs_rq)
 {
 	struct cfs_rq *cfs_rq = cfs_rq_of(se);
-	long contrib_delta;
+	long contrib_delta, utilization_delta;
+	int cpu = cpu_of(rq_of(cfs_rq));
 	u64 now;
 
 	/*
@@ -2731,18 +2793,22 @@ static inline void update_entity_load_avg(struct sched_entity *se,
 	else
 		now = cfs_rq_clock_task(group_cfs_rq(se));
 
-	if (!__update_entity_runnable_avg(now, &se->avg, se->on_rq))
+	if (!__update_entity_runnable_avg(now, cpu, &se->avg, se->on_rq,
+					cfs_rq->curr == se))
 		return;
 
 	contrib_delta = __update_entity_load_avg_contrib(se);
+	utilization_delta = __update_entity_utilization_avg_contrib(se);
 
 	if (!update_cfs_rq)
 		return;
 
-	if (se->on_rq)
+	if (se->on_rq) {
 		cfs_rq->runnable_load_avg += contrib_delta;
-	else
+		cfs_rq->utilization_load_avg += utilization_delta;
+	} else {
 		subtract_blocked_load_contrib(cfs_rq, -contrib_delta);
+	}
 }
 
 /*
@@ -2817,6 +2883,7 @@ static inline void enqueue_entity_load_avg(struct cfs_rq *cfs_rq,
 	}
 
 	cfs_rq->runnable_load_avg += se->avg.load_avg_contrib;
+	cfs_rq->utilization_load_avg += se->avg.utilization_avg_contrib;
 	/* we force update consideration on load-balancer moves */
 	update_cfs_rq_blocked_load(cfs_rq, !wakeup);
 }
@@ -2835,6 +2902,7 @@ static inline void dequeue_entity_load_avg(struct cfs_rq *cfs_rq,
 	update_cfs_rq_blocked_load(cfs_rq, !sleep);
 
 	cfs_rq->runnable_load_avg -= se->avg.load_avg_contrib;
+	cfs_rq->utilization_load_avg -= se->avg.utilization_avg_contrib;
 	if (sleep) {
 		cfs_rq->blocked_load_avg += se->avg.load_avg_contrib;
 		se->avg.decay_count = atomic64_read(&cfs_rq->decay_counter);
@@ -3172,6 +3240,7 @@ set_next_entity(struct cfs_rq *cfs_rq, struct sched_entity *se)
 		 */
 		update_stats_wait_end(cfs_rq, se);
 		__dequeue_entity(cfs_rq, se);
+		update_entity_load_avg(se, 1);
 	}
 
 	update_stats_curr_start(cfs_rq, se);
@@ -4298,6 +4367,11 @@ static unsigned long capacity_of(int cpu)
 	return cpu_rq(cpu)->cpu_capacity;
 }
 
+static unsigned long capacity_orig_of(int cpu)
+{
+	return cpu_rq(cpu)->cpu_capacity_orig;
+}
+
 static unsigned long cpu_avg_load_per_task(int cpu)
 {
 	struct rq *rq = cpu_rq(cpu);
@@ -4711,6 +4785,33 @@ next:
 done:
 	return target;
 }
+/*
+ * get_cpu_usage returns the amount of capacity of a CPU that is used by CFS
+ * tasks. The unit of the return value must be the one of capacity so we can
+ * compare the usage with the capacity of the CPU that is available for CFS
+ * task (ie cpu_capacity).
+ * cfs.utilization_load_avg is the sum of running time of runnable tasks on a
+ * CPU. It represents the amount of utilization of a CPU in the range
+ * [0..SCHED_LOAD_SCALE].  The usage of a CPU can't be higher than the full
+ * capacity of the CPU because it's about the running time on this CPU.
+ * Nevertheless, cfs.utilization_load_avg can be higher than SCHED_LOAD_SCALE
+ * because of unfortunate rounding in avg_period and running_load_avg or just
+ * after migrating tasks until the average stabilizes with the new running
+ * time. So we need to check that the usage stays into the range
+ * [0..cpu_capacity_orig] and cap if necessary.
+ * Without capping the usage, a group could be seen as overloaded (CPU0 usage
+ * at 121% + CPU1 usage at 80%) whereas CPU1 has 20% of available capacity
+ */
+static int get_cpu_usage(int cpu)
+{
+	unsigned long usage = cpu_rq(cpu)->cfs.utilization_load_avg;
+	unsigned long capacity = capacity_orig_of(cpu);
+
+	if (usage >= SCHED_LOAD_SCALE)
+		return capacity;
+
+	return (usage * capacity) >> SCHED_LOAD_SHIFT;
+}
 
 /*
  * select_task_rq_fair: Select target runqueue for the waking task in domains
@@ -5837,12 +5938,12 @@ struct sg_lb_stats {
 	unsigned long sum_weighted_load; /* Weighted load of group's tasks */
 	unsigned long load_per_task;
 	unsigned long group_capacity;
+	unsigned long group_usage; /* Total usage of the group */
 	unsigned int sum_nr_running; /* Nr tasks running in the group */
-	unsigned int group_capacity_factor;
 	unsigned int idle_cpus;
 	unsigned int group_weight;
 	enum group_type group_type;
-	int group_has_free_capacity;
+	int group_no_capacity;
 #ifdef CONFIG_NUMA_BALANCING
 	unsigned int nr_numa_running;
 	unsigned int nr_preferred_running;
@@ -5913,16 +6014,6 @@ static inline int get_sd_load_idx(struct sched_domain *sd,
 	return load_idx;
 }
 
-static unsigned long default_scale_capacity(struct sched_domain *sd, int cpu)
-{
-	return SCHED_CAPACITY_SCALE;
-}
-
-unsigned long __weak arch_scale_freq_capacity(struct sched_domain *sd, int cpu)
-{
-	return default_scale_capacity(sd, cpu);
-}
-
 static unsigned long default_scale_cpu_capacity(struct sched_domain *sd, int cpu)
 {
 	if ((sd->flags & SD_SHARE_CPUCAPACITY) && (sd->span_weight > 1))
@@ -5939,7 +6030,7 @@ unsigned long __weak arch_scale_cpu_capacity(struct sched_domain *sd, int cpu)
 static unsigned long scale_rt_capacity(int cpu)
 {
 	struct rq *rq = cpu_rq(cpu);
-	u64 total, available, age_stamp, avg;
+	u64 total, used, age_stamp, avg;
 	s64 delta;
 
 	/*
@@ -5955,19 +6046,12 @@ static unsigned long scale_rt_capacity(int cpu)
 
 	total = sched_avg_period() + delta;
 
-	if (unlikely(total < avg)) {
-		/* Ensures that capacity won't end up being negative */
-		available = 0;
-	} else {
-		available = total - avg;
-	}
-
-	if (unlikely((s64)total < SCHED_CAPACITY_SCALE))
-		total = SCHED_CAPACITY_SCALE;
+	used = div_u64(avg, total);
 
-	total >>= SCHED_CAPACITY_SHIFT;
+	if (likely(used < SCHED_CAPACITY_SCALE))
+		return SCHED_CAPACITY_SCALE - used;
 
-	return div_u64(available, total);
+	return 1;
 }
 
 static void update_cpu_capacity(struct sched_domain *sd, int cpu)
@@ -5982,14 +6066,7 @@ static void update_cpu_capacity(struct sched_domain *sd, int cpu)
 
 	capacity >>= SCHED_CAPACITY_SHIFT;
 
-	sdg->sgc->capacity_orig = capacity;
-
-	if (sched_feat(ARCH_CAPACITY))
-		capacity *= arch_scale_freq_capacity(sd, cpu);
-	else
-		capacity *= default_scale_capacity(sd, cpu);
-
-	capacity >>= SCHED_CAPACITY_SHIFT;
+	cpu_rq(cpu)->cpu_capacity_orig = capacity;
 
 	capacity *= scale_rt_capacity(cpu);
 	capacity >>= SCHED_CAPACITY_SHIFT;
@@ -6005,7 +6082,7 @@ void update_group_capacity(struct sched_domain *sd, int cpu)
 {
 	struct sched_domain *child = sd->child;
 	struct sched_group *group, *sdg = sd->groups;
-	unsigned long capacity, capacity_orig;
+	unsigned long capacity;
 	unsigned long interval;
 
 	interval = msecs_to_jiffies(sd->balance_interval);
@@ -6017,7 +6094,7 @@ void update_group_capacity(struct sched_domain *sd, int cpu)
 		return;
 	}
 
-	capacity_orig = capacity = 0;
+	capacity = 0;
 
 	if (child->flags & SD_OVERLAP) {
 		/*
@@ -6037,19 +6114,15 @@ void update_group_capacity(struct sched_domain *sd, int cpu)
 			 * Use capacity_of(), which is set irrespective of domains
 			 * in update_cpu_capacity().
 			 *
-			 * This avoids capacity/capacity_orig from being 0 and
+			 * This avoids capacity from being 0 and
 			 * causing divide-by-zero issues on boot.
-			 *
-			 * Runtime updates will correct capacity_orig.
 			 */
 			if (unlikely(!rq->sd)) {
-				capacity_orig += capacity_of(cpu);
 				capacity += capacity_of(cpu);
 				continue;
 			}
 
 			sgc = rq->sd->groups->sgc;
-			capacity_orig += sgc->capacity_orig;
 			capacity += sgc->capacity;
 		}
 	} else  {
@@ -6060,39 +6133,24 @@ void update_group_capacity(struct sched_domain *sd, int cpu)
 
 		group = child->groups;
 		do {
-			capacity_orig += group->sgc->capacity_orig;
 			capacity += group->sgc->capacity;
 			group = group->next;
 		} while (group != child->groups);
 	}
 
-	sdg->sgc->capacity_orig = capacity_orig;
 	sdg->sgc->capacity = capacity;
 }
 
 /*
- * Try and fix up capacity for tiny siblings, this is needed when
- * things like SD_ASYM_PACKING need f_b_g to select another sibling
- * which on its own isn't powerful enough.
- *
- * See update_sd_pick_busiest() and check_asym_packing().
+ * Check whether the capacity of the rq has been noticeably reduced by side
+ * activity. The imbalance_pct is used for the threshold.
+ * Return true is the capacity is reduced
  */
 static inline int
-fix_small_capacity(struct sched_domain *sd, struct sched_group *group)
+check_cpu_capacity(struct rq *rq, struct sched_domain *sd)
 {
-	/*
-	 * Only siblings can have significantly less than SCHED_CAPACITY_SCALE
-	 */
-	if (!(sd->flags & SD_SHARE_CPUCAPACITY))
-		return 0;
-
-	/*
-	 * If ~90% of the cpu_capacity is still there, we're good.
-	 */
-	if (group->sgc->capacity * 32 > group->sgc->capacity_orig * 29)
-		return 1;
-
-	return 0;
+	return ((rq->cpu_capacity * sd->imbalance_pct) <
+				(rq->cpu_capacity_orig * 100));
 }
 
 /*
@@ -6130,37 +6188,56 @@ static inline int sg_imbalanced(struct sched_group *group)
 }
 
 /*
- * Compute the group capacity factor.
- *
- * Avoid the issue where N*frac(smt_capacity) >= 1 creates 'phantom' cores by
- * first dividing out the smt factor and computing the actual number of cores
- * and limit unit capacity with that.
+ * group_has_capacity returns true if the group has spare capacity that could
+ * be used by some tasks.
+ * We consider that a group has spare capacity if the  * number of task is
+ * smaller than the number of CPUs or if the usage is lower than the available
+ * capacity for CFS tasks.
+ * For the latter, we use a threshold to stabilize the state, to take into
+ * account the variance of the tasks' load and to return true if the available
+ * capacity in meaningful for the load balancer.
+ * As an example, an available capacity of 1% can appear but it doesn't make
+ * any benefit for the load balance.
  */
-static inline int sg_capacity_factor(struct lb_env *env, struct sched_group *group)
+static inline bool
+group_has_capacity(struct lb_env *env, struct sg_lb_stats *sgs)
 {
-	unsigned int capacity_factor, smt, cpus;
-	unsigned int capacity, capacity_orig;
+	if (sgs->sum_nr_running < sgs->group_weight)
+		return true;
 
-	capacity = group->sgc->capacity;
-	capacity_orig = group->sgc->capacity_orig;
-	cpus = group->group_weight;
+	if ((sgs->group_capacity * 100) >
+			(sgs->group_usage * env->sd->imbalance_pct))
+		return true;
+
+	return false;
+}
 
-	/* smt := ceil(cpus / capacity), assumes: 1 < smt_capacity < 2 */
-	smt = DIV_ROUND_UP(SCHED_CAPACITY_SCALE * cpus, capacity_orig);
-	capacity_factor = cpus / smt; /* cores */
+/*
+ *  group_is_overloaded returns true if the group has more tasks than it can
+ *  handle.
+ *  group_is_overloaded is not equals to !group_has_capacity because a group
+ *  with the exact right number of tasks, has no more spare capacity but is not
+ *  overloaded so both group_has_capacity and group_is_overloaded return
+ *  false.
+ */
+static inline bool
+group_is_overloaded(struct lb_env *env, struct sg_lb_stats *sgs)
+{
+	if (sgs->sum_nr_running <= sgs->group_weight)
+		return false;
 
-	capacity_factor = min_t(unsigned,
-		capacity_factor, DIV_ROUND_CLOSEST(capacity, SCHED_CAPACITY_SCALE));
-	if (!capacity_factor)
-		capacity_factor = fix_small_capacity(env->sd, group);
+	if ((sgs->group_capacity * 100) <
+			(sgs->group_usage * env->sd->imbalance_pct))
+		return true;
 
-	return capacity_factor;
+	return false;
 }
 
-static enum group_type
-group_classify(struct sched_group *group, struct sg_lb_stats *sgs)
+static enum group_type group_classify(struct lb_env *env,
+		struct sched_group *group,
+		struct sg_lb_stats *sgs)
 {
-	if (sgs->sum_nr_running > sgs->group_capacity_factor)
+	if (sgs->group_no_capacity)
 		return group_overloaded;
 
 	if (sg_imbalanced(group))
@@ -6198,6 +6275,7 @@ static inline void update_sg_lb_stats(struct lb_env *env,
 			load = source_load(i, load_idx);
 
 		sgs->group_load += load;
+		sgs->group_usage += get_cpu_usage(i);
 		sgs->sum_nr_running += rq->cfs.h_nr_running;
 
 		if (rq->nr_running > 1)
@@ -6220,11 +6298,9 @@ static inline void update_sg_lb_stats(struct lb_env *env,
 		sgs->load_per_task = sgs->sum_weighted_load / sgs->sum_nr_running;
 
 	sgs->group_weight = group->group_weight;
-	sgs->group_capacity_factor = sg_capacity_factor(env, group);
-	sgs->group_type = group_classify(group, sgs);
 
-	if (sgs->group_capacity_factor > sgs->sum_nr_running)
-		sgs->group_has_free_capacity = 1;
+	sgs->group_no_capacity = group_is_overloaded(env, sgs);
+	sgs->group_type = group_classify(env, group, sgs);
 }
 
 /**
@@ -6346,18 +6422,19 @@ static inline void update_sd_lb_stats(struct lb_env *env, struct sd_lb_stats *sd
 
 		/*
 		 * In case the child domain prefers tasks go to siblings
-		 * first, lower the sg capacity factor to one so that we'll try
+		 * first, lower the sg capacity so that we'll try
 		 * and move all the excess tasks away. We lower the capacity
 		 * of a group only if the local group has the capacity to fit
-		 * these excess tasks, i.e. nr_running < group_capacity_factor. The
-		 * extra check prevents the case where you always pull from the
-		 * heaviest group when it is already under-utilized (possible
-		 * with a large weight task outweighs the tasks on the system).
+		 * these excess tasks. The extra check prevents the case where
+		 * you always pull from the heaviest group when it is already
+		 * under-utilized (possible with a large weight task outweighs
+		 * the tasks on the system).
 		 */
 		if (prefer_sibling && sds->local &&
-		    sds->local_stat.group_has_free_capacity) {
-			sgs->group_capacity_factor = min(sgs->group_capacity_factor, 1U);
-			sgs->group_type = group_classify(sg, sgs);
+		    group_has_capacity(env, &sds->local_stat) &&
+		    (sgs->sum_nr_running > 1)) {
+			sgs->group_no_capacity = 1;
+			sgs->group_type = group_overloaded;
 		}
 
 		if (update_sd_pick_busiest(env, sds, sg, sgs)) {
@@ -6537,11 +6614,12 @@ static inline void calculate_imbalance(struct lb_env *env, struct sd_lb_stats *s
 	 */
 	if (busiest->group_type == group_overloaded &&
 	    local->group_type   == group_overloaded) {
-		load_above_capacity =
-			(busiest->sum_nr_running - busiest->group_capacity_factor);
-
-		load_above_capacity *= (SCHED_LOAD_SCALE * SCHED_CAPACITY_SCALE);
-		load_above_capacity /= busiest->group_capacity;
+		load_above_capacity = busiest->sum_nr_running *
+					SCHED_LOAD_SCALE;
+		if (load_above_capacity > busiest->group_capacity)
+			load_above_capacity -= busiest->group_capacity;
+		else
+			load_above_capacity = ~0UL;
 	}
 
 	/*
@@ -6604,6 +6682,7 @@ static struct sched_group *find_busiest_group(struct lb_env *env)
 	local = &sds.local_stat;
 	busiest = &sds.busiest_stat;
 
+	/* ASYM feature bypasses nice load balance check */
 	if ((env->idle == CPU_IDLE || env->idle == CPU_NEWLY_IDLE) &&
 	    check_asym_packing(env, &sds))
 		return sds.busiest;
@@ -6624,8 +6703,8 @@ static struct sched_group *find_busiest_group(struct lb_env *env)
 		goto force_balance;
 
 	/* SD_BALANCE_NEWIDLE trumps SMP nice when underutilized */
-	if (env->idle == CPU_NEWLY_IDLE && local->group_has_free_capacity &&
-	    !busiest->group_has_free_capacity)
+	if (env->idle == CPU_NEWLY_IDLE && group_has_capacity(env, local) &&
+	    busiest->group_no_capacity)
 		goto force_balance;
 
 	/*
@@ -6684,7 +6763,7 @@ static struct rq *find_busiest_queue(struct lb_env *env,
 	int i;
 
 	for_each_cpu_and(i, sched_group_cpus(group), env->cpus) {
-		unsigned long capacity, capacity_factor, wl;
+		unsigned long capacity, wl;
 		enum fbq_type rt;
 
 		rq = cpu_rq(i);
@@ -6713,9 +6792,6 @@ static struct rq *find_busiest_queue(struct lb_env *env,
 			continue;
 
 		capacity = capacity_of(i);
-		capacity_factor = DIV_ROUND_CLOSEST(capacity, SCHED_CAPACITY_SCALE);
-		if (!capacity_factor)
-			capacity_factor = fix_small_capacity(env->sd, group);
 
 		wl = weighted_cpuload(i);
 
@@ -6723,7 +6799,9 @@ static struct rq *find_busiest_queue(struct lb_env *env,
 		 * When comparing with imbalance, use weighted_cpuload()
 		 * which is not scaled with the cpu capacity.
 		 */
-		if (capacity_factor && rq->nr_running == 1 && wl > env->imbalance)
+
+		if (rq->nr_running == 1 && wl > env->imbalance &&
+		    !check_cpu_capacity(rq, env->sd))
 			continue;
 
 		/*
@@ -6771,6 +6849,19 @@ static int need_active_balance(struct lb_env *env)
 			return 1;
 	}
 
+	/*
+	 * The dst_cpu is idle and the src_cpu CPU has only 1 CFS task.
+	 * It's worth migrating the task if the src_cpu's capacity is reduced
+	 * because of other sched_class or IRQs if more capacity stays
+	 * available on dst_cpu.
+	 */
+	if ((env->idle != CPU_NOT_IDLE) &&
+	    (env->src_rq->cfs.h_nr_running == 1)) {
+		if ((check_cpu_capacity(env->src_rq, sd)) &&
+		    (capacity_of(env->src_cpu)*sd->imbalance_pct < capacity_of(env->dst_cpu)*100))
+			return 1;
+	}
+
 	return unlikely(sd->nr_balance_failed > sd->cache_nice_tries+2);
 }
 
@@ -6870,6 +6961,9 @@ redo:
 
 	schedstat_add(sd, lb_imbalance[idle], env.imbalance);
 
+	env.src_cpu = busiest->cpu;
+	env.src_rq = busiest;
+
 	ld_moved = 0;
 	if (busiest->nr_running > 1) {
 		/*
@@ -6879,8 +6973,6 @@ redo:
 		 * correctly treated as an imbalance.
 		 */
 		env.flags |= LBF_ALL_PINNED;
-		env.src_cpu   = busiest->cpu;
-		env.src_rq    = busiest;
 		env.loop_max  = min(sysctl_sched_nr_migrate, busiest->nr_running);
 
 more_balance:
@@ -7580,22 +7672,25 @@ end:
 
 /*
  * Current heuristic for kicking the idle load balancer in the presence
- * of an idle cpu is the system.
+ * of an idle cpu in the system.
  *   - This rq has more than one task.
- *   - At any scheduler domain level, this cpu's scheduler group has multiple
- *     busy cpu's exceeding the group's capacity.
+ *   - This rq has at least one CFS task and the capacity of the CPU is
+ *     significantly reduced because of RT tasks or IRQs.
+ *   - At parent of LLC scheduler domain level, this cpu's scheduler group has
+ *     multiple busy cpu.
  *   - For SD_ASYM_PACKING, if the lower numbered cpu's in the scheduler
  *     domain span are idle.
  */
-static inline int nohz_kick_needed(struct rq *rq)
+static inline bool nohz_kick_needed(struct rq *rq)
 {
 	unsigned long now = jiffies;
 	struct sched_domain *sd;
 	struct sched_group_capacity *sgc;
 	int nr_busy, cpu = rq->cpu;
+	bool kick = false;
 
 	if (unlikely(rq->idle_balance))
-		return 0;
+		return false;
 
        /*
 	* We may be recently in ticked or tickless idle mode. At the first
@@ -7609,38 +7704,46 @@ static inline int nohz_kick_needed(struct rq *rq)
 	 * balancing.
 	 */
 	if (likely(!atomic_read(&nohz.nr_cpus)))
-		return 0;
+		return false;
 
 	if (time_before(now, nohz.next_balance))
-		return 0;
+		return false;
 
 	if (rq->nr_running >= 2)
-		goto need_kick;
+		return true;
 
 	rcu_read_lock();
 	sd = rcu_dereference(per_cpu(sd_busy, cpu));
-
 	if (sd) {
 		sgc = sd->groups->sgc;
 		nr_busy = atomic_read(&sgc->nr_busy_cpus);
 
-		if (nr_busy > 1)
-			goto need_kick_unlock;
+		if (nr_busy > 1) {
+			kick = true;
+			goto unlock;
+		}
+
 	}
 
-	sd = rcu_dereference(per_cpu(sd_asym, cpu));
+	sd = rcu_dereference(rq->sd);
+	if (sd) {
+		if ((rq->cfs.h_nr_running >= 1) &&
+				check_cpu_capacity(rq, sd)) {
+			kick = true;
+			goto unlock;
+		}
+	}
 
+	sd = rcu_dereference(per_cpu(sd_asym, cpu));
 	if (sd && (cpumask_first_and(nohz.idle_cpus_mask,
-				  sched_domain_span(sd)) < cpu))
-		goto need_kick_unlock;
-
-	rcu_read_unlock();
-	return 0;
+				  sched_domain_span(sd)) < cpu)) {
+		kick = true;
+		goto unlock;
+	}
 
-need_kick_unlock:
+unlock:
 	rcu_read_unlock();
-need_kick:
-	return 1;
+	return kick;
 }
 #else
 static void nohz_idle_balance(struct rq *this_rq, enum cpu_idle_type idle) { }
@@ -7656,14 +7759,16 @@ static void run_rebalance_domains(struct softirq_action *h)
 	enum cpu_idle_type idle = this_rq->idle_balance ?
 						CPU_IDLE : CPU_NOT_IDLE;
 
-	rebalance_domains(this_rq, idle);
-
 	/*
 	 * If this cpu has a pending nohz_balance_kick, then do the
 	 * balancing on behalf of the other idle cpus whose ticks are
-	 * stopped.
+	 * stopped. Do nohz_idle_balance *before* rebalance_domains to
+	 * give the idle cpus a chance to load balance. Else we may
+	 * load balance only within the local sched_domain hierarchy
+	 * and abort nohz_idle_balance altogether if we pull some load.
 	 */
 	nohz_idle_balance(this_rq, idle);
+	rebalance_domains(this_rq, idle);
 }
 
 /*
diff --git a/kernel/sched/features.h b/kernel/sched/features.h
index 90284d1..91e33cd 100644
--- a/kernel/sched/features.h
+++ b/kernel/sched/features.h
@@ -56,6 +56,19 @@ SCHED_FEAT(NONTASK_CAPACITY, true)
  */
 SCHED_FEAT(TTWU_QUEUE, true)
 
+#ifdef HAVE_RT_PUSH_IPI
+/*
+ * In order to avoid a thundering herd attack of CPUs that are
+ * lowering their priorities at the same time, and there being
+ * a single CPU that has an RT task that can migrate and is waiting
+ * to run, where the other CPUs will try to take that CPUs
+ * rq lock and possibly create a large contention, sending an
+ * IPI to that CPU and let that CPU push the RT task to where
+ * it should go may be a better scenario.
+ */
+SCHED_FEAT(RT_PUSH_IPI, true)
+#endif
+
 SCHED_FEAT(FORCE_SD_OVERLAP, false)
 SCHED_FEAT(RT_RUNTIME_SHARE, true)
 SCHED_FEAT(LB_MIN, false)
diff --git a/kernel/sched/idle.c b/kernel/sched/idle.c
index 94b2d7b..4d207d2 100644
--- a/kernel/sched/idle.c
+++ b/kernel/sched/idle.c
@@ -82,6 +82,7 @@ static void cpuidle_idle_call(void)
 	struct cpuidle_driver *drv = cpuidle_get_cpu_driver(dev);
 	int next_state, entered_state;
 	unsigned int broadcast;
+	bool reflect;
 
 	/*
 	 * Check if the idle task must be rescheduled. If it is the
@@ -105,6 +106,9 @@ static void cpuidle_idle_call(void)
 	 */
 	rcu_idle_enter();
 
+	if (cpuidle_not_available(drv, dev))
+		goto use_default;
+
 	/*
 	 * Suspend-to-idle ("freeze") is a system state in which all user space
 	 * has been frozen, all I/O devices have been suspended and the only
@@ -115,30 +119,24 @@ static void cpuidle_idle_call(void)
 	 * until a proper wakeup interrupt happens.
 	 */
 	if (idle_should_freeze()) {
-		cpuidle_enter_freeze();
-		local_irq_enable();
-		goto exit_idle;
-	}
+		entered_state = cpuidle_enter_freeze(drv, dev);
+		if (entered_state >= 0) {
+			local_irq_enable();
+			goto exit_idle;
+		}
 
-	/*
-	 * Ask the cpuidle framework to choose a convenient idle state.
-	 * Fall back to the default arch idle method on errors.
-	 */
-	next_state = cpuidle_select(drv, dev);
-	if (next_state < 0) {
-use_default:
+		reflect = false;
+		next_state = cpuidle_find_deepest_state(drv, dev);
+	} else {
+		reflect = true;
 		/*
-		 * We can't use the cpuidle framework, let's use the default
-		 * idle routine.
+		 * Ask the cpuidle framework to choose a convenient idle state.
 		 */
-		if (current_clr_polling_and_test())
-			local_irq_enable();
-		else
-			arch_cpu_idle();
-
-		goto exit_idle;
+		next_state = cpuidle_select(drv, dev);
 	}
-
+	/* Fall back to the default arch idle method on errors. */
+	if (next_state < 0)
+		goto use_default;
 
 	/*
 	 * The idle task must be scheduled, it is pointless to
@@ -160,8 +158,7 @@ use_default:
 	 * is used from another cpu as a broadcast timer, this call may
 	 * fail if it is not available
 	 */
-	if (broadcast &&
-	    clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_ENTER, &dev->cpu))
+	if (broadcast && tick_broadcast_enter())
 		goto use_default;
 
 	/* Take note of the planned idle state. */
@@ -178,12 +175,13 @@ use_default:
 	idle_set_state(this_rq(), NULL);
 
 	if (broadcast)
-		clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_EXIT, &dev->cpu);
+		tick_broadcast_exit();
 
 	/*
 	 * Give the governor an opportunity to reflect on the outcome
 	 */
-	cpuidle_reflect(dev, entered_state);
+	if (reflect)
+		cpuidle_reflect(dev, entered_state);
 
 exit_idle:
 	__current_set_polling();
@@ -196,6 +194,19 @@ exit_idle:
 
 	rcu_idle_exit();
 	start_critical_timings();
+	return;
+
+use_default:
+	/*
+	 * We can't use the cpuidle framework, let's use the default
+	 * idle routine.
+	 */
+	if (current_clr_polling_and_test())
+		local_irq_enable();
+	else
+		arch_cpu_idle();
+
+	goto exit_idle;
 }
 
 /*
diff --git a/kernel/sched/rt.c b/kernel/sched/rt.c
index f4d4b07..575da76 100644
--- a/kernel/sched/rt.c
+++ b/kernel/sched/rt.c
@@ -6,6 +6,7 @@
 #include "sched.h"
 
 #include <linux/slab.h>
+#include <linux/irq_work.h>
 
 int sched_rr_timeslice = RR_TIMESLICE;
 
@@ -59,7 +60,11 @@ static void start_rt_bandwidth(struct rt_bandwidth *rt_b)
 	raw_spin_unlock(&rt_b->rt_runtime_lock);
 }
 
-void init_rt_rq(struct rt_rq *rt_rq, struct rq *rq)
+#ifdef CONFIG_SMP
+static void push_irq_work_func(struct irq_work *work);
+#endif
+
+void init_rt_rq(struct rt_rq *rt_rq)
 {
 	struct rt_prio_array *array;
 	int i;
@@ -78,7 +83,14 @@ void init_rt_rq(struct rt_rq *rt_rq, struct rq *rq)
 	rt_rq->rt_nr_migratory = 0;
 	rt_rq->overloaded = 0;
 	plist_head_init(&rt_rq->pushable_tasks);
+
+#ifdef HAVE_RT_PUSH_IPI
+	rt_rq->push_flags = 0;
+	rt_rq->push_cpu = nr_cpu_ids;
+	raw_spin_lock_init(&rt_rq->push_lock);
+	init_irq_work(&rt_rq->push_work, push_irq_work_func);
 #endif
+#endif /* CONFIG_SMP */
 	/* We start is dequeued state, because no RT tasks are queued */
 	rt_rq->rt_queued = 0;
 
@@ -193,7 +205,7 @@ int alloc_rt_sched_group(struct task_group *tg, struct task_group *parent)
 		if (!rt_se)
 			goto err_free_rq;
 
-		init_rt_rq(rt_rq, cpu_rq(i));
+		init_rt_rq(rt_rq);
 		rt_rq->rt_runtime = tg->rt_bandwidth.rt_runtime;
 		init_tg_rt_entry(tg, rt_rq, rt_se, i, parent->rt_se[i]);
 	}
@@ -1778,6 +1790,164 @@ static void push_rt_tasks(struct rq *rq)
 		;
 }
 
+#ifdef HAVE_RT_PUSH_IPI
+/*
+ * The search for the next cpu always starts at rq->cpu and ends
+ * when we reach rq->cpu again. It will never return rq->cpu.
+ * This returns the next cpu to check, or nr_cpu_ids if the loop
+ * is complete.
+ *
+ * rq->rt.push_cpu holds the last cpu returned by this function,
+ * or if this is the first instance, it must hold rq->cpu.
+ */
+static int rto_next_cpu(struct rq *rq)
+{
+	int prev_cpu = rq->rt.push_cpu;
+	int cpu;
+
+	cpu = cpumask_next(prev_cpu, rq->rd->rto_mask);
+
+	/*
+	 * If the previous cpu is less than the rq's CPU, then it already
+	 * passed the end of the mask, and has started from the beginning.
+	 * We end if the next CPU is greater or equal to rq's CPU.
+	 */
+	if (prev_cpu < rq->cpu) {
+		if (cpu >= rq->cpu)
+			return nr_cpu_ids;
+
+	} else if (cpu >= nr_cpu_ids) {
+		/*
+		 * We passed the end of the mask, start at the beginning.
+		 * If the result is greater or equal to the rq's CPU, then
+		 * the loop is finished.
+		 */
+		cpu = cpumask_first(rq->rd->rto_mask);
+		if (cpu >= rq->cpu)
+			return nr_cpu_ids;
+	}
+	rq->rt.push_cpu = cpu;
+
+	/* Return cpu to let the caller know if the loop is finished or not */
+	return cpu;
+}
+
+static int find_next_push_cpu(struct rq *rq)
+{
+	struct rq *next_rq;
+	int cpu;
+
+	while (1) {
+		cpu = rto_next_cpu(rq);
+		if (cpu >= nr_cpu_ids)
+			break;
+		next_rq = cpu_rq(cpu);
+
+		/* Make sure the next rq can push to this rq */
+		if (next_rq->rt.highest_prio.next < rq->rt.highest_prio.curr)
+			break;
+	}
+
+	return cpu;
+}
+
+#define RT_PUSH_IPI_EXECUTING		1
+#define RT_PUSH_IPI_RESTART		2
+
+static void tell_cpu_to_push(struct rq *rq)
+{
+	int cpu;
+
+	if (rq->rt.push_flags & RT_PUSH_IPI_EXECUTING) {
+		raw_spin_lock(&rq->rt.push_lock);
+		/* Make sure it's still executing */
+		if (rq->rt.push_flags & RT_PUSH_IPI_EXECUTING) {
+			/*
+			 * Tell the IPI to restart the loop as things have
+			 * changed since it started.
+			 */
+			rq->rt.push_flags |= RT_PUSH_IPI_RESTART;
+			raw_spin_unlock(&rq->rt.push_lock);
+			return;
+		}
+		raw_spin_unlock(&rq->rt.push_lock);
+	}
+
+	/* When here, there's no IPI going around */
+
+	rq->rt.push_cpu = rq->cpu;
+	cpu = find_next_push_cpu(rq);
+	if (cpu >= nr_cpu_ids)
+		return;
+
+	rq->rt.push_flags = RT_PUSH_IPI_EXECUTING;
+
+	irq_work_queue_on(&rq->rt.push_work, cpu);
+}
+
+/* Called from hardirq context */
+static void try_to_push_tasks(void *arg)
+{
+	struct rt_rq *rt_rq = arg;
+	struct rq *rq, *src_rq;
+	int this_cpu;
+	int cpu;
+
+	this_cpu = rt_rq->push_cpu;
+
+	/* Paranoid check */
+	BUG_ON(this_cpu != smp_processor_id());
+
+	rq = cpu_rq(this_cpu);
+	src_rq = rq_of_rt_rq(rt_rq);
+
+again:
+	if (has_pushable_tasks(rq)) {
+		raw_spin_lock(&rq->lock);
+		push_rt_task(rq);
+		raw_spin_unlock(&rq->lock);
+	}
+
+	/* Pass the IPI to the next rt overloaded queue */
+	raw_spin_lock(&rt_rq->push_lock);
+	/*
+	 * If the source queue changed since the IPI went out,
+	 * we need to restart the search from that CPU again.
+	 */
+	if (rt_rq->push_flags & RT_PUSH_IPI_RESTART) {
+		rt_rq->push_flags &= ~RT_PUSH_IPI_RESTART;
+		rt_rq->push_cpu = src_rq->cpu;
+	}
+
+	cpu = find_next_push_cpu(src_rq);
+
+	if (cpu >= nr_cpu_ids)
+		rt_rq->push_flags &= ~RT_PUSH_IPI_EXECUTING;
+	raw_spin_unlock(&rt_rq->push_lock);
+
+	if (cpu >= nr_cpu_ids)
+		return;
+
+	/*
+	 * It is possible that a restart caused this CPU to be
+	 * chosen again. Don't bother with an IPI, just see if we
+	 * have more to push.
+	 */
+	if (unlikely(cpu == rq->cpu))
+		goto again;
+
+	/* Try the next RT overloaded CPU */
+	irq_work_queue_on(&rt_rq->push_work, cpu);
+}
+
+static void push_irq_work_func(struct irq_work *work)
+{
+	struct rt_rq *rt_rq = container_of(work, struct rt_rq, push_work);
+
+	try_to_push_tasks(rt_rq);
+}
+#endif /* HAVE_RT_PUSH_IPI */
+
 static int pull_rt_task(struct rq *this_rq)
 {
 	int this_cpu = this_rq->cpu, ret = 0, cpu;
@@ -1793,6 +1963,13 @@ static int pull_rt_task(struct rq *this_rq)
 	 */
 	smp_rmb();
 
+#ifdef HAVE_RT_PUSH_IPI
+	if (sched_feat(RT_PUSH_IPI)) {
+		tell_cpu_to_push(this_rq);
+		return 0;
+	}
+#endif
+
 	for_each_cpu(cpu, this_rq->rd->rto_mask) {
 		if (this_cpu == cpu)
 			continue;
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index dc0f435..e0e1299 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -6,6 +6,7 @@
 #include <linux/mutex.h>
 #include <linux/spinlock.h>
 #include <linux/stop_machine.h>
+#include <linux/irq_work.h>
 #include <linux/tick.h>
 #include <linux/slab.h>
 
@@ -362,8 +363,14 @@ struct cfs_rq {
 	 * Under CFS, load is tracked on a per-entity basis and aggregated up.
 	 * This allows for the description of both thread and group usage (in
 	 * the FAIR_GROUP_SCHED case).
+	 * runnable_load_avg is the sum of the load_avg_contrib of the
+	 * sched_entities on the rq.
+	 * blocked_load_avg is similar to runnable_load_avg except that its
+	 * the blocked sched_entities on the rq.
+	 * utilization_load_avg is the sum of the average running time of the
+	 * sched_entities on the rq.
 	 */
-	unsigned long runnable_load_avg, blocked_load_avg;
+	unsigned long runnable_load_avg, blocked_load_avg, utilization_load_avg;
 	atomic64_t decay_counter;
 	u64 last_decay;
 	atomic_long_t removed_load;
@@ -418,6 +425,11 @@ static inline int rt_bandwidth_enabled(void)
 	return sysctl_sched_rt_runtime >= 0;
 }
 
+/* RT IPI pull logic requires IRQ_WORK */
+#ifdef CONFIG_IRQ_WORK
+# define HAVE_RT_PUSH_IPI
+#endif
+
 /* Real-Time classes' related field in a runqueue: */
 struct rt_rq {
 	struct rt_prio_array active;
@@ -435,7 +447,13 @@ struct rt_rq {
 	unsigned long rt_nr_total;
 	int overloaded;
 	struct plist_head pushable_tasks;
+#ifdef HAVE_RT_PUSH_IPI
+	int push_flags;
+	int push_cpu;
+	struct irq_work push_work;
+	raw_spinlock_t push_lock;
 #endif
+#endif /* CONFIG_SMP */
 	int rt_queued;
 
 	int rt_throttled;
@@ -597,6 +615,7 @@ struct rq {
 	struct sched_domain *sd;
 
 	unsigned long cpu_capacity;
+	unsigned long cpu_capacity_orig;
 
 	unsigned char idle_balance;
 	/* For active balancing */
@@ -807,7 +826,7 @@ struct sched_group_capacity {
 	 * CPU capacity of this group, SCHED_LOAD_SCALE being max capacity
 	 * for a single CPU.
 	 */
-	unsigned int capacity, capacity_orig;
+	unsigned int capacity;
 	unsigned long next_update;
 	int imbalance; /* XXX unrelated to capacity but shared group state */
 	/*
@@ -1368,9 +1387,18 @@ static inline int hrtick_enabled(struct rq *rq)
 
 #ifdef CONFIG_SMP
 extern void sched_avg_update(struct rq *rq);
+
+#ifndef arch_scale_freq_capacity
+static __always_inline
+unsigned long arch_scale_freq_capacity(struct sched_domain *sd, int cpu)
+{
+	return SCHED_CAPACITY_SCALE;
+}
+#endif
+
 static inline void sched_rt_avg_update(struct rq *rq, u64 rt_delta)
 {
-	rq->rt_avg += rt_delta;
+	rq->rt_avg += rt_delta * arch_scale_freq_capacity(NULL, cpu_of(rq));
 	sched_avg_update(rq);
 }
 #else
@@ -1643,8 +1671,8 @@ extern void print_rt_stats(struct seq_file *m, int cpu);
 extern void print_dl_stats(struct seq_file *m, int cpu);
 
 extern void init_cfs_rq(struct cfs_rq *cfs_rq);
-extern void init_rt_rq(struct rt_rq *rt_rq, struct rq *rq);
-extern void init_dl_rq(struct dl_rq *dl_rq, struct rq *rq);
+extern void init_rt_rq(struct rt_rq *rt_rq);
+extern void init_dl_rq(struct dl_rq *dl_rq);
 
 extern void cfs_bandwidth_usage_inc(void);
 extern void cfs_bandwidth_usage_dec(void);
diff --git a/kernel/sys.c b/kernel/sys.c
index 667b2e6..a03d9cd 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -1108,6 +1108,7 @@ DECLARE_RWSEM(uts_sem);
 /*
  * Work around broken programs that cannot handle "Linux 3.0".
  * Instead we map 3.x to 2.6.40+x, so e.g. 3.0 would be 2.6.40
+ * And we map 4.x to 2.6.60+x, so 4.0 would be 2.6.60.
  */
 static int override_release(char __user *release, size_t len)
 {
@@ -1127,7 +1128,7 @@ static int override_release(char __user *release, size_t len)
 				break;
 			rest++;
 		}
-		v = ((LINUX_VERSION_CODE >> 8) & 0xff) + 40;
+		v = ((LINUX_VERSION_CODE >> 8) & 0xff) + 60;
 		copy = clamp_t(size_t, len, 1, sizeof(buf));
 		copy = scnprintf(buf, copy, "2.6.%u%s", v, rest);
 		ret = copy_to_user(release, buf, copy + 1);
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index 88ea2d6..ce410bb 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -1228,6 +1228,14 @@ static struct ctl_table vm_table[] = {
 		.extra1		= &zero,
 	},
 	{
+		.procname	= "dirtytime_expire_seconds",
+		.data		= &dirtytime_expire_interval,
+		.maxlen		= sizeof(dirty_expire_interval),
+		.mode		= 0644,
+		.proc_handler	= dirtytime_interval_handler,
+		.extra1		= &zero,
+	},
+	{
 		.procname       = "nr_pdflush_threads",
 		.mode           = 0444 /* read-only */,
 		.proc_handler   = pdflush_proc_obsolete,
diff --git a/kernel/time/Kconfig b/kernel/time/Kconfig
index d626dc9..579ce1b 100644
--- a/kernel/time/Kconfig
+++ b/kernel/time/Kconfig
@@ -33,12 +33,6 @@ config ARCH_USES_GETTIMEOFFSET
 config GENERIC_CLOCKEVENTS
 	bool
 
-# Migration helper. Builds, but does not invoke
-config GENERIC_CLOCKEVENTS_BUILD
-	bool
-	default y
-	depends on GENERIC_CLOCKEVENTS
-
 # Architecture can handle broadcast in a driver-agnostic way
 config ARCH_HAS_TICK_BROADCAST
 	bool
diff --git a/kernel/time/Makefile b/kernel/time/Makefile
index c09c078..01f0312 100644
--- a/kernel/time/Makefile
+++ b/kernel/time/Makefile
@@ -2,15 +2,13 @@ obj-y += time.o timer.o hrtimer.o itimer.o posix-timers.o posix-cpu-timers.o
 obj-y += timekeeping.o ntp.o clocksource.o jiffies.o timer_list.o
 obj-y += timeconv.o timecounter.o posix-clock.o alarmtimer.o
 
-obj-$(CONFIG_GENERIC_CLOCKEVENTS_BUILD)		+= clockevents.o
-obj-$(CONFIG_GENERIC_CLOCKEVENTS)		+= tick-common.o
+obj-$(CONFIG_GENERIC_CLOCKEVENTS)		+= clockevents.o tick-common.o
 ifeq ($(CONFIG_GENERIC_CLOCKEVENTS_BROADCAST),y)
  obj-y						+= tick-broadcast.o
  obj-$(CONFIG_TICK_ONESHOT)			+= tick-broadcast-hrtimer.o
 endif
 obj-$(CONFIG_GENERIC_SCHED_CLOCK)		+= sched_clock.o
-obj-$(CONFIG_TICK_ONESHOT)			+= tick-oneshot.o
-obj-$(CONFIG_TICK_ONESHOT)			+= tick-sched.o
+obj-$(CONFIG_TICK_ONESHOT)			+= tick-oneshot.o tick-sched.o
 obj-$(CONFIG_TIMER_STATS)			+= timer_stats.o
 obj-$(CONFIG_DEBUG_FS)				+= timekeeping_debug.o
 obj-$(CONFIG_TEST_UDELAY)			+= test_udelay.o
diff --git a/kernel/time/clockevents.c b/kernel/time/clockevents.c
index 5544990..25d942d 100644
--- a/kernel/time/clockevents.c
+++ b/kernel/time/clockevents.c
@@ -94,25 +94,76 @@ u64 clockevent_delta2ns(unsigned long latch, struct clock_event_device *evt)
 }
 EXPORT_SYMBOL_GPL(clockevent_delta2ns);
 
+static int __clockevents_set_state(struct clock_event_device *dev,
+				   enum clock_event_state state)
+{
+	/* Transition with legacy set_mode() callback */
+	if (dev->set_mode) {
+		/* Legacy callback doesn't support new modes */
+		if (state > CLOCK_EVT_STATE_ONESHOT)
+			return -ENOSYS;
+		/*
+		 * 'clock_event_state' and 'clock_event_mode' have 1-to-1
+		 * mapping until *_ONESHOT, and so a simple cast will work.
+		 */
+		dev->set_mode((enum clock_event_mode)state, dev);
+		dev->mode = (enum clock_event_mode)state;
+		return 0;
+	}
+
+	if (dev->features & CLOCK_EVT_FEAT_DUMMY)
+		return 0;
+
+	/* Transition with new state-specific callbacks */
+	switch (state) {
+	case CLOCK_EVT_STATE_DETACHED:
+		/*
+		 * This is an internal state, which is guaranteed to go from
+		 * SHUTDOWN to DETACHED. No driver interaction required.
+		 */
+		return 0;
+
+	case CLOCK_EVT_STATE_SHUTDOWN:
+		return dev->set_state_shutdown(dev);
+
+	case CLOCK_EVT_STATE_PERIODIC:
+		/* Core internal bug */
+		if (!(dev->features & CLOCK_EVT_FEAT_PERIODIC))
+			return -ENOSYS;
+		return dev->set_state_periodic(dev);
+
+	case CLOCK_EVT_STATE_ONESHOT:
+		/* Core internal bug */
+		if (!(dev->features & CLOCK_EVT_FEAT_ONESHOT))
+			return -ENOSYS;
+		return dev->set_state_oneshot(dev);
+
+	default:
+		return -ENOSYS;
+	}
+}
+
 /**
- * clockevents_set_mode - set the operating mode of a clock event device
+ * clockevents_set_state - set the operating state of a clock event device
  * @dev:	device to modify
- * @mode:	new mode
+ * @state:	new state
  *
  * Must be called with interrupts disabled !
  */
-void clockevents_set_mode(struct clock_event_device *dev,
-				 enum clock_event_mode mode)
+void clockevents_set_state(struct clock_event_device *dev,
+			   enum clock_event_state state)
 {
-	if (dev->mode != mode) {
-		dev->set_mode(mode, dev);
-		dev->mode = mode;
+	if (dev->state != state) {
+		if (__clockevents_set_state(dev, state))
+			return;
+
+		dev->state = state;
 
 		/*
 		 * A nsec2cyc multiplicator of 0 is invalid and we'd crash
 		 * on it, so fix it up and emit a warning:
 		 */
-		if (mode == CLOCK_EVT_MODE_ONESHOT) {
+		if (state == CLOCK_EVT_STATE_ONESHOT) {
 			if (unlikely(!dev->mult)) {
 				dev->mult = 1;
 				WARN_ON(1);
@@ -127,10 +178,28 @@ void clockevents_set_mode(struct clock_event_device *dev,
  */
 void clockevents_shutdown(struct clock_event_device *dev)
 {
-	clockevents_set_mode(dev, CLOCK_EVT_MODE_SHUTDOWN);
+	clockevents_set_state(dev, CLOCK_EVT_STATE_SHUTDOWN);
 	dev->next_event.tv64 = KTIME_MAX;
 }
 
+/**
+ * clockevents_tick_resume -	Resume the tick device before using it again
+ * @dev:			device to resume
+ */
+int clockevents_tick_resume(struct clock_event_device *dev)
+{
+	int ret = 0;
+
+	if (dev->set_mode) {
+		dev->set_mode(CLOCK_EVT_MODE_RESUME, dev);
+		dev->mode = CLOCK_EVT_MODE_RESUME;
+	} else if (dev->tick_resume) {
+		ret = dev->tick_resume(dev);
+	}
+
+	return ret;
+}
+
 #ifdef CONFIG_GENERIC_CLOCKEVENTS_MIN_ADJUST
 
 /* Limit min_delta to a jiffie */
@@ -183,7 +252,7 @@ static int clockevents_program_min_delta(struct clock_event_device *dev)
 		delta = dev->min_delta_ns;
 		dev->next_event = ktime_add_ns(ktime_get(), delta);
 
-		if (dev->mode == CLOCK_EVT_MODE_SHUTDOWN)
+		if (dev->state == CLOCK_EVT_STATE_SHUTDOWN)
 			return 0;
 
 		dev->retries++;
@@ -220,7 +289,7 @@ static int clockevents_program_min_delta(struct clock_event_device *dev)
 	delta = dev->min_delta_ns;
 	dev->next_event = ktime_add_ns(ktime_get(), delta);
 
-	if (dev->mode == CLOCK_EVT_MODE_SHUTDOWN)
+	if (dev->state == CLOCK_EVT_STATE_SHUTDOWN)
 		return 0;
 
 	dev->retries++;
@@ -252,7 +321,7 @@ int clockevents_program_event(struct clock_event_device *dev, ktime_t expires,
 
 	dev->next_event = expires;
 
-	if (dev->mode == CLOCK_EVT_MODE_SHUTDOWN)
+	if (dev->state == CLOCK_EVT_STATE_SHUTDOWN)
 		return 0;
 
 	/* Shortcut for clockevent devices that can deal with ktime. */
@@ -297,7 +366,7 @@ static int clockevents_replace(struct clock_event_device *ced)
 	struct clock_event_device *dev, *newdev = NULL;
 
 	list_for_each_entry(dev, &clockevent_devices, list) {
-		if (dev == ced || dev->mode != CLOCK_EVT_MODE_UNUSED)
+		if (dev == ced || dev->state != CLOCK_EVT_STATE_DETACHED)
 			continue;
 
 		if (!tick_check_replacement(newdev, dev))
@@ -323,7 +392,7 @@ static int clockevents_replace(struct clock_event_device *ced)
 static int __clockevents_try_unbind(struct clock_event_device *ced, int cpu)
 {
 	/* Fast track. Device is unused */
-	if (ced->mode == CLOCK_EVT_MODE_UNUSED) {
+	if (ced->state == CLOCK_EVT_STATE_DETACHED) {
 		list_del_init(&ced->list);
 		return 0;
 	}
@@ -373,6 +442,37 @@ int clockevents_unbind_device(struct clock_event_device *ced, int cpu)
 }
 EXPORT_SYMBOL_GPL(clockevents_unbind);
 
+/* Sanity check of state transition callbacks */
+static int clockevents_sanity_check(struct clock_event_device *dev)
+{
+	/* Legacy set_mode() callback */
+	if (dev->set_mode) {
+		/* We shouldn't be supporting new modes now */
+		WARN_ON(dev->set_state_periodic || dev->set_state_oneshot ||
+			dev->set_state_shutdown || dev->tick_resume);
+
+		BUG_ON(dev->mode != CLOCK_EVT_MODE_UNUSED);
+		return 0;
+	}
+
+	if (dev->features & CLOCK_EVT_FEAT_DUMMY)
+		return 0;
+
+	/* New state-specific callbacks */
+	if (!dev->set_state_shutdown)
+		return -EINVAL;
+
+	if ((dev->features & CLOCK_EVT_FEAT_PERIODIC) &&
+	    !dev->set_state_periodic)
+		return -EINVAL;
+
+	if ((dev->features & CLOCK_EVT_FEAT_ONESHOT) &&
+	    !dev->set_state_oneshot)
+		return -EINVAL;
+
+	return 0;
+}
+
 /**
  * clockevents_register_device - register a clock event device
  * @dev:	device to register
@@ -381,7 +481,11 @@ void clockevents_register_device(struct clock_event_device *dev)
 {
 	unsigned long flags;
 
-	BUG_ON(dev->mode != CLOCK_EVT_MODE_UNUSED);
+	BUG_ON(clockevents_sanity_check(dev));
+
+	/* Initialize state to DETACHED */
+	dev->state = CLOCK_EVT_STATE_DETACHED;
+
 	if (!dev->cpumask) {
 		WARN_ON(num_possible_cpus() > 1);
 		dev->cpumask = cpumask_of(smp_processor_id());
@@ -445,11 +549,11 @@ int __clockevents_update_freq(struct clock_event_device *dev, u32 freq)
 {
 	clockevents_config(dev, freq);
 
-	if (dev->mode == CLOCK_EVT_MODE_ONESHOT)
+	if (dev->state == CLOCK_EVT_STATE_ONESHOT)
 		return clockevents_program_event(dev, dev->next_event, false);
 
-	if (dev->mode == CLOCK_EVT_MODE_PERIODIC)
-		dev->set_mode(CLOCK_EVT_MODE_PERIODIC, dev);
+	if (dev->state == CLOCK_EVT_STATE_PERIODIC)
+		return __clockevents_set_state(dev, CLOCK_EVT_STATE_PERIODIC);
 
 	return 0;
 }
@@ -491,30 +595,27 @@ void clockevents_handle_noop(struct clock_event_device *dev)
  * @old:	device to release (can be NULL)
  * @new:	device to request (can be NULL)
  *
- * Called from the notifier chain. clockevents_lock is held already
+ * Called from various tick functions with clockevents_lock held and
+ * interrupts disabled.
  */
 void clockevents_exchange_device(struct clock_event_device *old,
 				 struct clock_event_device *new)
 {
-	unsigned long flags;
-
-	local_irq_save(flags);
 	/*
 	 * Caller releases a clock event device. We queue it into the
 	 * released list and do a notify add later.
 	 */
 	if (old) {
 		module_put(old->owner);
-		clockevents_set_mode(old, CLOCK_EVT_MODE_UNUSED);
+		clockevents_set_state(old, CLOCK_EVT_STATE_DETACHED);
 		list_del(&old->list);
 		list_add(&old->list, &clockevents_released);
 	}
 
 	if (new) {
-		BUG_ON(new->mode != CLOCK_EVT_MODE_UNUSED);
+		BUG_ON(new->state != CLOCK_EVT_STATE_DETACHED);
 		clockevents_shutdown(new);
 	}
-	local_irq_restore(flags);
 }
 
 /**
@@ -541,74 +642,40 @@ void clockevents_resume(void)
 			dev->resume(dev);
 }
 
-#ifdef CONFIG_GENERIC_CLOCKEVENTS
+#ifdef CONFIG_HOTPLUG_CPU
 /**
- * clockevents_notify - notification about relevant events
- * Returns 0 on success, any other value on error
+ * tick_cleanup_dead_cpu - Cleanup the tick and clockevents of a dead cpu
  */
-int clockevents_notify(unsigned long reason, void *arg)
+void tick_cleanup_dead_cpu(int cpu)
 {
 	struct clock_event_device *dev, *tmp;
 	unsigned long flags;
-	int cpu, ret = 0;
 
 	raw_spin_lock_irqsave(&clockevents_lock, flags);
 
-	switch (reason) {
-	case CLOCK_EVT_NOTIFY_BROADCAST_ON:
-	case CLOCK_EVT_NOTIFY_BROADCAST_OFF:
-	case CLOCK_EVT_NOTIFY_BROADCAST_FORCE:
-		tick_broadcast_on_off(reason, arg);
-		break;
-
-	case CLOCK_EVT_NOTIFY_BROADCAST_ENTER:
-	case CLOCK_EVT_NOTIFY_BROADCAST_EXIT:
-		ret = tick_broadcast_oneshot_control(reason);
-		break;
-
-	case CLOCK_EVT_NOTIFY_CPU_DYING:
-		tick_handover_do_timer(arg);
-		break;
-
-	case CLOCK_EVT_NOTIFY_SUSPEND:
-		tick_suspend();
-		tick_suspend_broadcast();
-		break;
-
-	case CLOCK_EVT_NOTIFY_RESUME:
-		tick_resume();
-		break;
-
-	case CLOCK_EVT_NOTIFY_CPU_DEAD:
-		tick_shutdown_broadcast_oneshot(arg);
-		tick_shutdown_broadcast(arg);
-		tick_shutdown(arg);
-		/*
-		 * Unregister the clock event devices which were
-		 * released from the users in the notify chain.
-		 */
-		list_for_each_entry_safe(dev, tmp, &clockevents_released, list)
+	tick_shutdown_broadcast_oneshot(cpu);
+	tick_shutdown_broadcast(cpu);
+	tick_shutdown(cpu);
+	/*
+	 * Unregister the clock event devices which were
+	 * released from the users in the notify chain.
+	 */
+	list_for_each_entry_safe(dev, tmp, &clockevents_released, list)
+		list_del(&dev->list);
+	/*
+	 * Now check whether the CPU has left unused per cpu devices
+	 */
+	list_for_each_entry_safe(dev, tmp, &clockevent_devices, list) {
+		if (cpumask_test_cpu(cpu, dev->cpumask) &&
+		    cpumask_weight(dev->cpumask) == 1 &&
+		    !tick_is_broadcast_device(dev)) {
+			BUG_ON(dev->state != CLOCK_EVT_STATE_DETACHED);
 			list_del(&dev->list);
-		/*
-		 * Now check whether the CPU has left unused per cpu devices
-		 */
-		cpu = *((int *)arg);
-		list_for_each_entry_safe(dev, tmp, &clockevent_devices, list) {
-			if (cpumask_test_cpu(cpu, dev->cpumask) &&
-			    cpumask_weight(dev->cpumask) == 1 &&
-			    !tick_is_broadcast_device(dev)) {
-				BUG_ON(dev->mode != CLOCK_EVT_MODE_UNUSED);
-				list_del(&dev->list);
-			}
 		}
-		break;
-	default:
-		break;
 	}
 	raw_spin_unlock_irqrestore(&clockevents_lock, flags);
-	return ret;
 }
-EXPORT_SYMBOL_GPL(clockevents_notify);
+#endif
 
 #ifdef CONFIG_SYSFS
 struct bus_type clockevents_subsys = {
@@ -727,5 +794,3 @@ static int __init clockevents_init_sysfs(void)
 }
 device_initcall(clockevents_init_sysfs);
 #endif /* SYSFS */
-
-#endif /* GENERIC_CLOCK_EVENTS */
diff --git a/kernel/time/clocksource.c b/kernel/time/clocksource.c
index 4892352..15facb1 100644
--- a/kernel/time/clocksource.c
+++ b/kernel/time/clocksource.c
@@ -142,13 +142,6 @@ static void __clocksource_unstable(struct clocksource *cs)
 		schedule_work(&watchdog_work);
 }
 
-static void clocksource_unstable(struct clocksource *cs, int64_t delta)
-{
-	printk(KERN_WARNING "Clocksource %s unstable (delta = %Ld ns)\n",
-	       cs->name, delta);
-	__clocksource_unstable(cs);
-}
-
 /**
  * clocksource_mark_unstable - mark clocksource unstable via watchdog
  * @cs:		clocksource to be marked unstable
@@ -174,7 +167,7 @@ void clocksource_mark_unstable(struct clocksource *cs)
 static void clocksource_watchdog(unsigned long data)
 {
 	struct clocksource *cs;
-	cycle_t csnow, wdnow, delta;
+	cycle_t csnow, wdnow, cslast, wdlast, delta;
 	int64_t wd_nsec, cs_nsec;
 	int next_cpu, reset_pending;
 
@@ -213,6 +206,8 @@ static void clocksource_watchdog(unsigned long data)
 
 		delta = clocksource_delta(csnow, cs->cs_last, cs->mask);
 		cs_nsec = clocksource_cyc2ns(delta, cs->mult, cs->shift);
+		wdlast = cs->wd_last; /* save these in case we print them */
+		cslast = cs->cs_last;
 		cs->cs_last = csnow;
 		cs->wd_last = wdnow;
 
@@ -221,7 +216,12 @@ static void clocksource_watchdog(unsigned long data)
 
 		/* Check the deviation from the watchdog clocksource. */
 		if ((abs(cs_nsec - wd_nsec) > WATCHDOG_THRESHOLD)) {
-			clocksource_unstable(cs, cs_nsec - wd_nsec);
+			pr_warn("timekeeping watchdog: Marking clocksource '%s' as unstable, because the skew is too large:\n", cs->name);
+			pr_warn("	'%s' wd_now: %llx wd_last: %llx mask: %llx\n",
+				watchdog->name, wdnow, wdlast, watchdog->mask);
+			pr_warn("	'%s' cs_now: %llx cs_last: %llx mask: %llx\n",
+				cs->name, csnow, cslast, cs->mask);
+			__clocksource_unstable(cs);
 			continue;
 		}
 
@@ -469,26 +469,25 @@ static u32 clocksource_max_adjustment(struct clocksource *cs)
  * @shift:	cycle to nanosecond divisor (power of two)
  * @maxadj:	maximum adjustment value to mult (~11%)
  * @mask:	bitmask for two's complement subtraction of non 64 bit counters
+ * @max_cyc:	maximum cycle value before potential overflow (does not include
+ *		any safety margin)
+ *
+ * NOTE: This function includes a safety margin of 50%, in other words, we
+ * return half the number of nanoseconds the hardware counter can technically
+ * cover. This is done so that we can potentially detect problems caused by
+ * delayed timers or bad hardware, which might result in time intervals that
+ * are larger then what the math used can handle without overflows.
  */
-u64 clocks_calc_max_nsecs(u32 mult, u32 shift, u32 maxadj, u64 mask)
+u64 clocks_calc_max_nsecs(u32 mult, u32 shift, u32 maxadj, u64 mask, u64 *max_cyc)
 {
 	u64 max_nsecs, max_cycles;
 
 	/*
 	 * Calculate the maximum number of cycles that we can pass to the
-	 * cyc2ns function without overflowing a 64-bit signed result. The
-	 * maximum number of cycles is equal to ULLONG_MAX/(mult+maxadj)
-	 * which is equivalent to the below.
-	 * max_cycles < (2^63)/(mult + maxadj)
-	 * max_cycles < 2^(log2((2^63)/(mult + maxadj)))
-	 * max_cycles < 2^(log2(2^63) - log2(mult + maxadj))
-	 * max_cycles < 2^(63 - log2(mult + maxadj))
-	 * max_cycles < 1 << (63 - log2(mult + maxadj))
-	 * Please note that we add 1 to the result of the log2 to account for
-	 * any rounding errors, ensure the above inequality is satisfied and
-	 * no overflow will occur.
+	 * cyc2ns() function without overflowing a 64-bit result.
 	 */
-	max_cycles = 1ULL << (63 - (ilog2(mult + maxadj) + 1));
+	max_cycles = ULLONG_MAX;
+	do_div(max_cycles, mult+maxadj);
 
 	/*
 	 * The actual maximum number of cycles we can defer the clocksource is
@@ -499,27 +498,26 @@ u64 clocks_calc_max_nsecs(u32 mult, u32 shift, u32 maxadj, u64 mask)
 	max_cycles = min(max_cycles, mask);
 	max_nsecs = clocksource_cyc2ns(max_cycles, mult - maxadj, shift);
 
+	/* return the max_cycles value as well if requested */
+	if (max_cyc)
+		*max_cyc = max_cycles;
+
+	/* Return 50% of the actual maximum, so we can detect bad values */
+	max_nsecs >>= 1;
+
 	return max_nsecs;
 }
 
 /**
- * clocksource_max_deferment - Returns max time the clocksource can be deferred
- * @cs:         Pointer to clocksource
+ * clocksource_update_max_deferment - Updates the clocksource max_idle_ns & max_cycles
+ * @cs:         Pointer to clocksource to be updated
  *
  */
-static u64 clocksource_max_deferment(struct clocksource *cs)
+static inline void clocksource_update_max_deferment(struct clocksource *cs)
 {
-	u64 max_nsecs;
-
-	max_nsecs = clocks_calc_max_nsecs(cs->mult, cs->shift, cs->maxadj,
-					  cs->mask);
-	/*
-	 * To ensure that the clocksource does not wrap whilst we are idle,
-	 * limit the time the clocksource can be deferred by 12.5%. Please
-	 * note a margin of 12.5% is used because this can be computed with
-	 * a shift, versus say 10% which would require division.
-	 */
-	return max_nsecs - (max_nsecs >> 3);
+	cs->max_idle_ns = clocks_calc_max_nsecs(cs->mult, cs->shift,
+						cs->maxadj, cs->mask,
+						&cs->max_cycles);
 }
 
 #ifndef CONFIG_ARCH_USES_GETTIMEOFFSET
@@ -648,7 +646,7 @@ static void clocksource_enqueue(struct clocksource *cs)
 }
 
 /**
- * __clocksource_updatefreq_scale - Used update clocksource with new freq
+ * __clocksource_update_freq_scale - Used update clocksource with new freq
  * @cs:		clocksource to be registered
  * @scale:	Scale factor multiplied against freq to get clocksource hz
  * @freq:	clocksource frequency (cycles per second) divided by scale
@@ -656,48 +654,64 @@ static void clocksource_enqueue(struct clocksource *cs)
  * This should only be called from the clocksource->enable() method.
  *
  * This *SHOULD NOT* be called directly! Please use the
- * clocksource_updatefreq_hz() or clocksource_updatefreq_khz helper functions.
+ * __clocksource_update_freq_hz() or __clocksource_update_freq_khz() helper
+ * functions.
  */
-void __clocksource_updatefreq_scale(struct clocksource *cs, u32 scale, u32 freq)
+void __clocksource_update_freq_scale(struct clocksource *cs, u32 scale, u32 freq)
 {
 	u64 sec;
+
 	/*
-	 * Calc the maximum number of seconds which we can run before
-	 * wrapping around. For clocksources which have a mask > 32bit
-	 * we need to limit the max sleep time to have a good
-	 * conversion precision. 10 minutes is still a reasonable
-	 * amount. That results in a shift value of 24 for a
-	 * clocksource with mask >= 40bit and f >= 4GHz. That maps to
-	 * ~ 0.06ppm granularity for NTP. We apply the same 12.5%
-	 * margin as we do in clocksource_max_deferment()
+	 * Default clocksources are *special* and self-define their mult/shift.
+	 * But, you're not special, so you should specify a freq value.
 	 */
-	sec = (cs->mask - (cs->mask >> 3));
-	do_div(sec, freq);
-	do_div(sec, scale);
-	if (!sec)
-		sec = 1;
-	else if (sec > 600 && cs->mask > UINT_MAX)
-		sec = 600;
-
-	clocks_calc_mult_shift(&cs->mult, &cs->shift, freq,
-			       NSEC_PER_SEC / scale, sec * scale);
-
+	if (freq) {
+		/*
+		 * Calc the maximum number of seconds which we can run before
+		 * wrapping around. For clocksources which have a mask > 32-bit
+		 * we need to limit the max sleep time to have a good
+		 * conversion precision. 10 minutes is still a reasonable
+		 * amount. That results in a shift value of 24 for a
+		 * clocksource with mask >= 40-bit and f >= 4GHz. That maps to
+		 * ~ 0.06ppm granularity for NTP.
+		 */
+		sec = cs->mask;
+		do_div(sec, freq);
+		do_div(sec, scale);
+		if (!sec)
+			sec = 1;
+		else if (sec > 600 && cs->mask > UINT_MAX)
+			sec = 600;
+
+		clocks_calc_mult_shift(&cs->mult, &cs->shift, freq,
+				       NSEC_PER_SEC / scale, sec * scale);
+	}
 	/*
-	 * for clocksources that have large mults, to avoid overflow.
-	 * Since mult may be adjusted by ntp, add an safety extra margin
-	 *
+	 * Ensure clocksources that have large 'mult' values don't overflow
+	 * when adjusted.
 	 */
 	cs->maxadj = clocksource_max_adjustment(cs);
-	while ((cs->mult + cs->maxadj < cs->mult)
-		|| (cs->mult - cs->maxadj > cs->mult)) {
+	while (freq && ((cs->mult + cs->maxadj < cs->mult)
+		|| (cs->mult - cs->maxadj > cs->mult))) {
 		cs->mult >>= 1;
 		cs->shift--;
 		cs->maxadj = clocksource_max_adjustment(cs);
 	}
 
-	cs->max_idle_ns = clocksource_max_deferment(cs);
+	/*
+	 * Only warn for *special* clocksources that self-define
+	 * their mult/shift values and don't specify a freq.
+	 */
+	WARN_ONCE(cs->mult + cs->maxadj < cs->mult,
+		"timekeeping: Clocksource %s might overflow on 11%% adjustment\n",
+		cs->name);
+
+	clocksource_update_max_deferment(cs);
+
+	pr_info("clocksource %s: mask: 0x%llx max_cycles: 0x%llx, max_idle_ns: %lld ns\n",
+			cs->name, cs->mask, cs->max_cycles, cs->max_idle_ns);
 }
-EXPORT_SYMBOL_GPL(__clocksource_updatefreq_scale);
+EXPORT_SYMBOL_GPL(__clocksource_update_freq_scale);
 
 /**
  * __clocksource_register_scale - Used to install new clocksources
@@ -714,7 +728,7 @@ int __clocksource_register_scale(struct clocksource *cs, u32 scale, u32 freq)
 {
 
 	/* Initialize mult/shift and max_idle_ns */
-	__clocksource_updatefreq_scale(cs, scale, freq);
+	__clocksource_update_freq_scale(cs, scale, freq);
 
 	/* Add clocksource to the clocksource list */
 	mutex_lock(&clocksource_mutex);
@@ -726,33 +740,6 @@ int __clocksource_register_scale(struct clocksource *cs, u32 scale, u32 freq)
 }
 EXPORT_SYMBOL_GPL(__clocksource_register_scale);
 
-
-/**
- * clocksource_register - Used to install new clocksources
- * @cs:		clocksource to be registered
- *
- * Returns -EBUSY if registration fails, zero otherwise.
- */
-int clocksource_register(struct clocksource *cs)
-{
-	/* calculate max adjustment for given mult/shift */
-	cs->maxadj = clocksource_max_adjustment(cs);
-	WARN_ONCE(cs->mult + cs->maxadj < cs->mult,
-		"Clocksource %s might overflow on 11%% adjustment\n",
-		cs->name);
-
-	/* calculate max idle time permitted for this clocksource */
-	cs->max_idle_ns = clocksource_max_deferment(cs);
-
-	mutex_lock(&clocksource_mutex);
-	clocksource_enqueue(cs);
-	clocksource_enqueue_watchdog(cs);
-	clocksource_select();
-	mutex_unlock(&clocksource_mutex);
-	return 0;
-}
-EXPORT_SYMBOL(clocksource_register);
-
 static void __clocksource_change_rating(struct clocksource *cs, int rating)
 {
 	list_del(&cs->list);
diff --git a/kernel/time/hrtimer.c b/kernel/time/hrtimer.c
index bee0c1f..76d4bd9 100644
--- a/kernel/time/hrtimer.c
+++ b/kernel/time/hrtimer.c
@@ -54,7 +54,7 @@
 
 #include <trace/events/timer.h>
 
-#include "timekeeping.h"
+#include "tick-internal.h"
 
 /*
  * The timer bases:
@@ -1707,17 +1707,10 @@ static int hrtimer_cpu_notify(struct notifier_block *self,
 		break;
 
 #ifdef CONFIG_HOTPLUG_CPU
-	case CPU_DYING:
-	case CPU_DYING_FROZEN:
-		clockevents_notify(CLOCK_EVT_NOTIFY_CPU_DYING, &scpu);
-		break;
 	case CPU_DEAD:
 	case CPU_DEAD_FROZEN:
-	{
-		clockevents_notify(CLOCK_EVT_NOTIFY_CPU_DEAD, &scpu);
 		migrate_hrtimers(scpu);
 		break;
-	}
 #endif
 
 	default:
diff --git a/kernel/time/jiffies.c b/kernel/time/jiffies.c
index a6a5bf5..347fecf 100644
--- a/kernel/time/jiffies.c
+++ b/kernel/time/jiffies.c
@@ -25,7 +25,7 @@
 #include <linux/module.h>
 #include <linux/init.h>
 
-#include "tick-internal.h"
+#include "timekeeping.h"
 
 /* The Jiffies based clocksource is the lowest common
  * denominator clock source which should function on
@@ -71,6 +71,7 @@ static struct clocksource clocksource_jiffies = {
 	.mask		= 0xffffffff, /*32bits*/
 	.mult		= NSEC_PER_JIFFY << JIFFIES_SHIFT, /* details above */
 	.shift		= JIFFIES_SHIFT,
+	.max_cycles	= 10,
 };
 
 __cacheline_aligned_in_smp DEFINE_SEQLOCK(jiffies_lock);
@@ -94,7 +95,7 @@ EXPORT_SYMBOL(jiffies);
 
 static int __init init_jiffies_clocksource(void)
 {
-	return clocksource_register(&clocksource_jiffies);
+	return __clocksource_register(&clocksource_jiffies);
 }
 
 core_initcall(init_jiffies_clocksource);
@@ -130,6 +131,6 @@ int register_refined_jiffies(long cycles_per_second)
 
 	refined_jiffies.mult = ((u32)nsec_per_tick) << JIFFIES_SHIFT;
 
-	clocksource_register(&refined_jiffies);
+	__clocksource_register(&refined_jiffies);
 	return 0;
 }
diff --git a/kernel/time/ntp.c b/kernel/time/ntp.c
index 0f60b08..7a68100 100644
--- a/kernel/time/ntp.c
+++ b/kernel/time/ntp.c
@@ -17,7 +17,6 @@
 #include <linux/module.h>
 #include <linux/rtc.h>
 
-#include "tick-internal.h"
 #include "ntp_internal.h"
 
 /*
@@ -459,6 +458,16 @@ out:
 	return leap;
 }
 
+#ifdef CONFIG_GENERIC_CMOS_UPDATE
+int __weak update_persistent_clock64(struct timespec64 now64)
+{
+	struct timespec now;
+
+	now = timespec64_to_timespec(now64);
+	return update_persistent_clock(now);
+}
+#endif
+
 #if defined(CONFIG_GENERIC_CMOS_UPDATE) || defined(CONFIG_RTC_SYSTOHC)
 static void sync_cmos_clock(struct work_struct *work);
 
@@ -494,8 +503,9 @@ static void sync_cmos_clock(struct work_struct *work)
 		if (persistent_clock_is_local)
 			adjust.tv_sec -= (sys_tz.tz_minuteswest * 60);
 #ifdef CONFIG_GENERIC_CMOS_UPDATE
-		fail = update_persistent_clock(timespec64_to_timespec(adjust));
+		fail = update_persistent_clock64(adjust);
 #endif
+
 #ifdef CONFIG_RTC_SYSTOHC
 		if (fail == -ENODEV)
 			fail = rtc_set_ntp_time(adjust);
diff --git a/kernel/time/sched_clock.c b/kernel/time/sched_clock.c
index 01d2d15..a26036d 100644
--- a/kernel/time/sched_clock.c
+++ b/kernel/time/sched_clock.c
@@ -1,5 +1,6 @@
 /*
- * sched_clock.c: support for extending counters to full 64-bit ns counter
+ * sched_clock.c: Generic sched_clock() support, to extend low level
+ *                hardware time counters to full 64-bit ns values.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -18,15 +19,53 @@
 #include <linux/seqlock.h>
 #include <linux/bitops.h>
 
-struct clock_data {
-	ktime_t wrap_kt;
+/**
+ * struct clock_read_data - data required to read from sched_clock()
+ *
+ * @epoch_ns:		sched_clock() value at last update
+ * @epoch_cyc:		Clock cycle value at last update.
+ * @sched_clock_mask:   Bitmask for two's complement subtraction of non 64bit
+ *			clocks.
+ * @read_sched_clock:	Current clock source (or dummy source when suspended).
+ * @mult:		Multipler for scaled math conversion.
+ * @shift:		Shift value for scaled math conversion.
+ *
+ * Care must be taken when updating this structure; it is read by
+ * some very hot code paths. It occupies <=40 bytes and, when combined
+ * with the seqcount used to synchronize access, comfortably fits into
+ * a 64 byte cache line.
+ */
+struct clock_read_data {
 	u64 epoch_ns;
 	u64 epoch_cyc;
-	seqcount_t seq;
-	unsigned long rate;
+	u64 sched_clock_mask;
+	u64 (*read_sched_clock)(void);
 	u32 mult;
 	u32 shift;
-	bool suspended;
+};
+
+/**
+ * struct clock_data - all data needed for sched_clock() (including
+ *                     registration of a new clock source)
+ *
+ * @seq:		Sequence counter for protecting updates. The lowest
+ *			bit is the index for @read_data.
+ * @read_data:		Data required to read from sched_clock.
+ * @wrap_kt:		Duration for which clock can run before wrapping.
+ * @rate:		Tick rate of the registered clock.
+ * @actual_read_sched_clock: Registered hardware level clock read function.
+ *
+ * The ordering of this structure has been chosen to optimize cache
+ * performance. In particular 'seq' and 'read_data[0]' (combined) should fit
+ * into a single 64-byte cache line.
+ */
+struct clock_data {
+	seqcount_t		seq;
+	struct clock_read_data	read_data[2];
+	ktime_t			wrap_kt;
+	unsigned long		rate;
+
+	u64 (*actual_read_sched_clock)(void);
 };
 
 static struct hrtimer sched_clock_timer;
@@ -34,12 +73,6 @@ static int irqtime = -1;
 
 core_param(irqtime, irqtime, int, 0400);
 
-static struct clock_data cd = {
-	.mult	= NSEC_PER_SEC / HZ,
-};
-
-static u64 __read_mostly sched_clock_mask;
-
 static u64 notrace jiffy_sched_clock_read(void)
 {
 	/*
@@ -49,7 +82,11 @@ static u64 notrace jiffy_sched_clock_read(void)
 	return (u64)(jiffies - INITIAL_JIFFIES);
 }
 
-static u64 __read_mostly (*read_sched_clock)(void) = jiffy_sched_clock_read;
+static struct clock_data cd ____cacheline_aligned = {
+	.read_data[0] = { .mult = NSEC_PER_SEC / HZ,
+			  .read_sched_clock = jiffy_sched_clock_read, },
+	.actual_read_sched_clock = jiffy_sched_clock_read,
+};
 
 static inline u64 notrace cyc_to_ns(u64 cyc, u32 mult, u32 shift)
 {
@@ -58,111 +95,136 @@ static inline u64 notrace cyc_to_ns(u64 cyc, u32 mult, u32 shift)
 
 unsigned long long notrace sched_clock(void)
 {
-	u64 epoch_ns;
-	u64 epoch_cyc;
-	u64 cyc;
+	u64 cyc, res;
 	unsigned long seq;
-
-	if (cd.suspended)
-		return cd.epoch_ns;
+	struct clock_read_data *rd;
 
 	do {
-		seq = raw_read_seqcount_begin(&cd.seq);
-		epoch_cyc = cd.epoch_cyc;
-		epoch_ns = cd.epoch_ns;
+		seq = raw_read_seqcount(&cd.seq);
+		rd = cd.read_data + (seq & 1);
+
+		cyc = (rd->read_sched_clock() - rd->epoch_cyc) &
+		      rd->sched_clock_mask;
+		res = rd->epoch_ns + cyc_to_ns(cyc, rd->mult, rd->shift);
 	} while (read_seqcount_retry(&cd.seq, seq));
 
-	cyc = read_sched_clock();
-	cyc = (cyc - epoch_cyc) & sched_clock_mask;
-	return epoch_ns + cyc_to_ns(cyc, cd.mult, cd.shift);
+	return res;
+}
+
+/*
+ * Updating the data required to read the clock.
+ *
+ * sched_clock() will never observe mis-matched data even if called from
+ * an NMI. We do this by maintaining an odd/even copy of the data and
+ * steering sched_clock() to one or the other using a sequence counter.
+ * In order to preserve the data cache profile of sched_clock() as much
+ * as possible the system reverts back to the even copy when the update
+ * completes; the odd copy is used *only* during an update.
+ */
+static void update_clock_read_data(struct clock_read_data *rd)
+{
+	/* update the backup (odd) copy with the new data */
+	cd.read_data[1] = *rd;
+
+	/* steer readers towards the odd copy */
+	raw_write_seqcount_latch(&cd.seq);
+
+	/* now its safe for us to update the normal (even) copy */
+	cd.read_data[0] = *rd;
+
+	/* switch readers back to the even copy */
+	raw_write_seqcount_latch(&cd.seq);
 }
 
 /*
- * Atomically update the sched_clock epoch.
+ * Atomically update the sched_clock() epoch.
  */
-static void notrace update_sched_clock(void)
+static void update_sched_clock(void)
 {
-	unsigned long flags;
 	u64 cyc;
 	u64 ns;
+	struct clock_read_data rd;
+
+	rd = cd.read_data[0];
+
+	cyc = cd.actual_read_sched_clock();
+	ns = rd.epoch_ns + cyc_to_ns((cyc - rd.epoch_cyc) & rd.sched_clock_mask, rd.mult, rd.shift);
+
+	rd.epoch_ns = ns;
+	rd.epoch_cyc = cyc;
 
-	cyc = read_sched_clock();
-	ns = cd.epoch_ns +
-		cyc_to_ns((cyc - cd.epoch_cyc) & sched_clock_mask,
-			  cd.mult, cd.shift);
-
-	raw_local_irq_save(flags);
-	raw_write_seqcount_begin(&cd.seq);
-	cd.epoch_ns = ns;
-	cd.epoch_cyc = cyc;
-	raw_write_seqcount_end(&cd.seq);
-	raw_local_irq_restore(flags);
+	update_clock_read_data(&rd);
 }
 
 static enum hrtimer_restart sched_clock_poll(struct hrtimer *hrt)
 {
 	update_sched_clock();
 	hrtimer_forward_now(hrt, cd.wrap_kt);
+
 	return HRTIMER_RESTART;
 }
 
-void __init sched_clock_register(u64 (*read)(void), int bits,
-				 unsigned long rate)
+void __init
+sched_clock_register(u64 (*read)(void), int bits, unsigned long rate)
 {
 	u64 res, wrap, new_mask, new_epoch, cyc, ns;
 	u32 new_mult, new_shift;
-	ktime_t new_wrap_kt;
 	unsigned long r;
 	char r_unit;
+	struct clock_read_data rd;
 
 	if (cd.rate > rate)
 		return;
 
 	WARN_ON(!irqs_disabled());
 
-	/* calculate the mult/shift to convert counter ticks to ns. */
+	/* Calculate the mult/shift to convert counter ticks to ns. */
 	clocks_calc_mult_shift(&new_mult, &new_shift, rate, NSEC_PER_SEC, 3600);
 
 	new_mask = CLOCKSOURCE_MASK(bits);
+	cd.rate = rate;
+
+	/* Calculate how many nanosecs until we risk wrapping */
+	wrap = clocks_calc_max_nsecs(new_mult, new_shift, 0, new_mask, NULL);
+	cd.wrap_kt = ns_to_ktime(wrap);
 
-	/* calculate how many ns until we wrap */
-	wrap = clocks_calc_max_nsecs(new_mult, new_shift, 0, new_mask);
-	new_wrap_kt = ns_to_ktime(wrap - (wrap >> 3));
+	rd = cd.read_data[0];
 
-	/* update epoch for new counter and update epoch_ns from old counter*/
+	/* Update epoch for new counter and update 'epoch_ns' from old counter*/
 	new_epoch = read();
-	cyc = read_sched_clock();
-	ns = cd.epoch_ns + cyc_to_ns((cyc - cd.epoch_cyc) & sched_clock_mask,
-			  cd.mult, cd.shift);
+	cyc = cd.actual_read_sched_clock();
+	ns = rd.epoch_ns + cyc_to_ns((cyc - rd.epoch_cyc) & rd.sched_clock_mask, rd.mult, rd.shift);
+	cd.actual_read_sched_clock = read;
 
-	raw_write_seqcount_begin(&cd.seq);
-	read_sched_clock = read;
-	sched_clock_mask = new_mask;
-	cd.rate = rate;
-	cd.wrap_kt = new_wrap_kt;
-	cd.mult = new_mult;
-	cd.shift = new_shift;
-	cd.epoch_cyc = new_epoch;
-	cd.epoch_ns = ns;
-	raw_write_seqcount_end(&cd.seq);
+	rd.read_sched_clock	= read;
+	rd.sched_clock_mask	= new_mask;
+	rd.mult			= new_mult;
+	rd.shift		= new_shift;
+	rd.epoch_cyc		= new_epoch;
+	rd.epoch_ns		= ns;
+
+	update_clock_read_data(&rd);
 
 	r = rate;
 	if (r >= 4000000) {
 		r /= 1000000;
 		r_unit = 'M';
-	} else if (r >= 1000) {
-		r /= 1000;
-		r_unit = 'k';
-	} else
-		r_unit = ' ';
-
-	/* calculate the ns resolution of this counter */
+	} else {
+		if (r >= 1000) {
+			r /= 1000;
+			r_unit = 'k';
+		} else {
+			r_unit = ' ';
+		}
+	}
+
+	/* Calculate the ns resolution of this counter */
 	res = cyc_to_ns(1ULL, new_mult, new_shift);
 
 	pr_info("sched_clock: %u bits at %lu%cHz, resolution %lluns, wraps every %lluns\n",
 		bits, r, r_unit, res, wrap);
 
-	/* Enable IRQ time accounting if we have a fast enough sched_clock */
+	/* Enable IRQ time accounting if we have a fast enough sched_clock() */
 	if (irqtime > 0 || (irqtime == -1 && rate >= 1000000))
 		enable_sched_clock_irqtime();
 
@@ -172,10 +234,10 @@ void __init sched_clock_register(u64 (*read)(void), int bits,
 void __init sched_clock_postinit(void)
 {
 	/*
-	 * If no sched_clock function has been provided at that point,
+	 * If no sched_clock() function has been provided at that point,
 	 * make it the final one one.
 	 */
-	if (read_sched_clock == jiffy_sched_clock_read)
+	if (cd.actual_read_sched_clock == jiffy_sched_clock_read)
 		sched_clock_register(jiffy_sched_clock_read, BITS_PER_LONG, HZ);
 
 	update_sched_clock();
@@ -189,29 +251,53 @@ void __init sched_clock_postinit(void)
 	hrtimer_start(&sched_clock_timer, cd.wrap_kt, HRTIMER_MODE_REL);
 }
 
+/*
+ * Clock read function for use when the clock is suspended.
+ *
+ * This function makes it appear to sched_clock() as if the clock
+ * stopped counting at its last update.
+ *
+ * This function must only be called from the critical
+ * section in sched_clock(). It relies on the read_seqcount_retry()
+ * at the end of the critical section to be sure we observe the
+ * correct copy of 'epoch_cyc'.
+ */
+static u64 notrace suspended_sched_clock_read(void)
+{
+	unsigned long seq = raw_read_seqcount(&cd.seq);
+
+	return cd.read_data[seq & 1].epoch_cyc;
+}
+
 static int sched_clock_suspend(void)
 {
+	struct clock_read_data *rd = &cd.read_data[0];
+
 	update_sched_clock();
 	hrtimer_cancel(&sched_clock_timer);
-	cd.suspended = true;
+	rd->read_sched_clock = suspended_sched_clock_read;
+
 	return 0;
 }
 
 static void sched_clock_resume(void)
 {
-	cd.epoch_cyc = read_sched_clock();
+	struct clock_read_data *rd = &cd.read_data[0];
+
+	rd->epoch_cyc = cd.actual_read_sched_clock();
 	hrtimer_start(&sched_clock_timer, cd.wrap_kt, HRTIMER_MODE_REL);
-	cd.suspended = false;
+	rd->read_sched_clock = cd.actual_read_sched_clock;
 }
 
 static struct syscore_ops sched_clock_ops = {
-	.suspend = sched_clock_suspend,
-	.resume = sched_clock_resume,
+	.suspend	= sched_clock_suspend,
+	.resume		= sched_clock_resume,
 };
 
 static int __init sched_clock_syscore_init(void)
 {
 	register_syscore_ops(&sched_clock_ops);
+
 	return 0;
 }
 device_initcall(sched_clock_syscore_init);
diff --git a/kernel/time/tick-broadcast-hrtimer.c b/kernel/time/tick-broadcast-hrtimer.c
index eb682d5..6aac4be 100644
--- a/kernel/time/tick-broadcast-hrtimer.c
+++ b/kernel/time/tick-broadcast-hrtimer.c
@@ -49,6 +49,7 @@ static void bc_set_mode(enum clock_event_mode mode,
  */
 static int bc_set_next(ktime_t expires, struct clock_event_device *bc)
 {
+	int bc_moved;
 	/*
 	 * We try to cancel the timer first. If the callback is on
 	 * flight on some other cpu then we let it handle it. If we
@@ -60,9 +61,15 @@ static int bc_set_next(ktime_t expires, struct clock_event_device *bc)
 	 * restart the timer because we are in the callback, but we
 	 * can set the expiry time and let the callback return
 	 * HRTIMER_RESTART.
+	 *
+	 * Since we are in the idle loop at this point and because
+	 * hrtimer_{start/cancel} functions call into tracing,
+	 * calls to these functions must be bound within RCU_NONIDLE.
 	 */
-	if (hrtimer_try_to_cancel(&bctimer) >= 0) {
-		hrtimer_start(&bctimer, expires, HRTIMER_MODE_ABS_PINNED);
+	RCU_NONIDLE(bc_moved = (hrtimer_try_to_cancel(&bctimer) >= 0) ?
+		!hrtimer_start(&bctimer, expires, HRTIMER_MODE_ABS_PINNED) :
+			0);
+	if (bc_moved) {
 		/* Bind the "device" to the cpu */
 		bc->bound_on = smp_processor_id();
 	} else if (bc->bound_on == smp_processor_id()) {
diff --git a/kernel/time/tick-broadcast.c b/kernel/time/tick-broadcast.c
index 066f0ec..7e8ca4f 100644
--- a/kernel/time/tick-broadcast.c
+++ b/kernel/time/tick-broadcast.c
@@ -33,12 +33,14 @@ static cpumask_var_t tick_broadcast_mask;
 static cpumask_var_t tick_broadcast_on;
 static cpumask_var_t tmpmask;
 static DEFINE_RAW_SPINLOCK(tick_broadcast_lock);
-static int tick_broadcast_force;
+static int tick_broadcast_forced;
 
 #ifdef CONFIG_TICK_ONESHOT
 static void tick_broadcast_clear_oneshot(int cpu);
+static void tick_resume_broadcast_oneshot(struct clock_event_device *bc);
 #else
 static inline void tick_broadcast_clear_oneshot(int cpu) { }
+static inline void tick_resume_broadcast_oneshot(struct clock_event_device *bc) { }
 #endif
 
 /*
@@ -303,7 +305,7 @@ static void tick_handle_periodic_broadcast(struct clock_event_device *dev)
 	/*
 	 * The device is in periodic mode. No reprogramming necessary:
 	 */
-	if (dev->mode == CLOCK_EVT_MODE_PERIODIC)
+	if (dev->state == CLOCK_EVT_STATE_PERIODIC)
 		goto unlock;
 
 	/*
@@ -324,49 +326,54 @@ unlock:
 	raw_spin_unlock(&tick_broadcast_lock);
 }
 
-/*
- * Powerstate information: The system enters/leaves a state, where
- * affected devices might stop
+/**
+ * tick_broadcast_control - Enable/disable or force broadcast mode
+ * @mode:	The selected broadcast mode
+ *
+ * Called when the system enters a state where affected tick devices
+ * might stop. Note: TICK_BROADCAST_FORCE cannot be undone.
+ *
+ * Called with interrupts disabled, so clockevents_lock is not
+ * required here because the local clock event device cannot go away
+ * under us.
  */
-static void tick_do_broadcast_on_off(unsigned long *reason)
+void tick_broadcast_control(enum tick_broadcast_mode mode)
 {
 	struct clock_event_device *bc, *dev;
 	struct tick_device *td;
-	unsigned long flags;
 	int cpu, bc_stopped;
 
-	raw_spin_lock_irqsave(&tick_broadcast_lock, flags);
-
-	cpu = smp_processor_id();
-	td = &per_cpu(tick_cpu_device, cpu);
+	td = this_cpu_ptr(&tick_cpu_device);
 	dev = td->evtdev;
-	bc = tick_broadcast_device.evtdev;
 
 	/*
 	 * Is the device not affected by the powerstate ?
 	 */
 	if (!dev || !(dev->features & CLOCK_EVT_FEAT_C3STOP))
-		goto out;
+		return;
 
 	if (!tick_device_is_functional(dev))
-		goto out;
+		return;
 
+	raw_spin_lock(&tick_broadcast_lock);
+	cpu = smp_processor_id();
+	bc = tick_broadcast_device.evtdev;
 	bc_stopped = cpumask_empty(tick_broadcast_mask);
 
-	switch (*reason) {
-	case CLOCK_EVT_NOTIFY_BROADCAST_ON:
-	case CLOCK_EVT_NOTIFY_BROADCAST_FORCE:
+	switch (mode) {
+	case TICK_BROADCAST_FORCE:
+		tick_broadcast_forced = 1;
+	case TICK_BROADCAST_ON:
 		cpumask_set_cpu(cpu, tick_broadcast_on);
 		if (!cpumask_test_and_set_cpu(cpu, tick_broadcast_mask)) {
 			if (tick_broadcast_device.mode ==
 			    TICKDEV_MODE_PERIODIC)
 				clockevents_shutdown(dev);
 		}
-		if (*reason == CLOCK_EVT_NOTIFY_BROADCAST_FORCE)
-			tick_broadcast_force = 1;
 		break;
-	case CLOCK_EVT_NOTIFY_BROADCAST_OFF:
-		if (tick_broadcast_force)
+
+	case TICK_BROADCAST_OFF:
+		if (tick_broadcast_forced)
 			break;
 		cpumask_clear_cpu(cpu, tick_broadcast_on);
 		if (!tick_device_is_functional(dev))
@@ -388,22 +395,9 @@ static void tick_do_broadcast_on_off(unsigned long *reason)
 		else
 			tick_broadcast_setup_oneshot(bc);
 	}
-out:
-	raw_spin_unlock_irqrestore(&tick_broadcast_lock, flags);
-}
-
-/*
- * Powerstate information: The system enters/leaves a state, where
- * affected devices might stop.
- */
-void tick_broadcast_on_off(unsigned long reason, int *oncpu)
-{
-	if (!cpumask_test_cpu(*oncpu, cpu_online_mask))
-		printk(KERN_ERR "tick-broadcast: ignoring broadcast for "
-		       "offline CPU #%d\n", *oncpu);
-	else
-		tick_do_broadcast_on_off(&reason);
+	raw_spin_unlock(&tick_broadcast_lock);
 }
+EXPORT_SYMBOL_GPL(tick_broadcast_control);
 
 /*
  * Set the periodic handler depending on broadcast on/off
@@ -416,14 +410,14 @@ void tick_set_periodic_handler(struct clock_event_device *dev, int broadcast)
 		dev->event_handler = tick_handle_periodic_broadcast;
 }
 
+#ifdef CONFIG_HOTPLUG_CPU
 /*
  * Remove a CPU from broadcasting
  */
-void tick_shutdown_broadcast(unsigned int *cpup)
+void tick_shutdown_broadcast(unsigned int cpu)
 {
 	struct clock_event_device *bc;
 	unsigned long flags;
-	unsigned int cpu = *cpup;
 
 	raw_spin_lock_irqsave(&tick_broadcast_lock, flags);
 
@@ -438,6 +432,7 @@ void tick_shutdown_broadcast(unsigned int *cpup)
 
 	raw_spin_unlock_irqrestore(&tick_broadcast_lock, flags);
 }
+#endif
 
 void tick_suspend_broadcast(void)
 {
@@ -453,38 +448,48 @@ void tick_suspend_broadcast(void)
 	raw_spin_unlock_irqrestore(&tick_broadcast_lock, flags);
 }
 
-int tick_resume_broadcast(void)
+/*
+ * This is called from tick_resume_local() on a resuming CPU. That's
+ * called from the core resume function, tick_unfreeze() and the magic XEN
+ * resume hackery.
+ *
+ * In none of these cases the broadcast device mode can change and the
+ * bit of the resuming CPU in the broadcast mask is safe as well.
+ */
+bool tick_resume_check_broadcast(void)
+{
+	if (tick_broadcast_device.mode == TICKDEV_MODE_ONESHOT)
+		return false;
+	else
+		return cpumask_test_cpu(smp_processor_id(), tick_broadcast_mask);
+}
+
+void tick_resume_broadcast(void)
 {
 	struct clock_event_device *bc;
 	unsigned long flags;
-	int broadcast = 0;
 
 	raw_spin_lock_irqsave(&tick_broadcast_lock, flags);
 
 	bc = tick_broadcast_device.evtdev;
 
 	if (bc) {
-		clockevents_set_mode(bc, CLOCK_EVT_MODE_RESUME);
+		clockevents_tick_resume(bc);
 
 		switch (tick_broadcast_device.mode) {
 		case TICKDEV_MODE_PERIODIC:
 			if (!cpumask_empty(tick_broadcast_mask))
 				tick_broadcast_start_periodic(bc);
-			broadcast = cpumask_test_cpu(smp_processor_id(),
-						     tick_broadcast_mask);
 			break;
 		case TICKDEV_MODE_ONESHOT:
 			if (!cpumask_empty(tick_broadcast_mask))
-				broadcast = tick_resume_broadcast_oneshot(bc);
+				tick_resume_broadcast_oneshot(bc);
 			break;
 		}
 	}
 	raw_spin_unlock_irqrestore(&tick_broadcast_lock, flags);
-
-	return broadcast;
 }
 
-
 #ifdef CONFIG_TICK_ONESHOT
 
 static cpumask_var_t tick_broadcast_oneshot_mask;
@@ -532,8 +537,8 @@ static int tick_broadcast_set_event(struct clock_event_device *bc, int cpu,
 {
 	int ret;
 
-	if (bc->mode != CLOCK_EVT_MODE_ONESHOT)
-		clockevents_set_mode(bc, CLOCK_EVT_MODE_ONESHOT);
+	if (bc->state != CLOCK_EVT_STATE_ONESHOT)
+		clockevents_set_state(bc, CLOCK_EVT_STATE_ONESHOT);
 
 	ret = clockevents_program_event(bc, expires, force);
 	if (!ret)
@@ -541,10 +546,9 @@ static int tick_broadcast_set_event(struct clock_event_device *bc, int cpu,
 	return ret;
 }
 
-int tick_resume_broadcast_oneshot(struct clock_event_device *bc)
+static void tick_resume_broadcast_oneshot(struct clock_event_device *bc)
 {
-	clockevents_set_mode(bc, CLOCK_EVT_MODE_ONESHOT);
-	return 0;
+	clockevents_set_state(bc, CLOCK_EVT_STATE_ONESHOT);
 }
 
 /*
@@ -562,8 +566,8 @@ void tick_check_oneshot_broadcast_this_cpu(void)
 		 * switched over, leave the device alone.
 		 */
 		if (td->mode == TICKDEV_MODE_ONESHOT) {
-			clockevents_set_mode(td->evtdev,
-					     CLOCK_EVT_MODE_ONESHOT);
+			clockevents_set_state(td->evtdev,
+					      CLOCK_EVT_STATE_ONESHOT);
 		}
 	}
 }
@@ -666,31 +670,26 @@ static void broadcast_shutdown_local(struct clock_event_device *bc,
 		if (dev->next_event.tv64 < bc->next_event.tv64)
 			return;
 	}
-	clockevents_set_mode(dev, CLOCK_EVT_MODE_SHUTDOWN);
+	clockevents_set_state(dev, CLOCK_EVT_STATE_SHUTDOWN);
 }
 
-static void broadcast_move_bc(int deadcpu)
-{
-	struct clock_event_device *bc = tick_broadcast_device.evtdev;
-
-	if (!bc || !broadcast_needs_cpu(bc, deadcpu))
-		return;
-	/* This moves the broadcast assignment to this cpu */
-	clockevents_program_event(bc, bc->next_event, 1);
-}
-
-/*
- * Powerstate information: The system enters/leaves a state, where
- * affected devices might stop
+/**
+ * tick_broadcast_oneshot_control - Enter/exit broadcast oneshot mode
+ * @state:	The target state (enter/exit)
+ *
+ * The system enters/leaves a state, where affected devices might stop
  * Returns 0 on success, -EBUSY if the cpu is used to broadcast wakeups.
+ *
+ * Called with interrupts disabled, so clockevents_lock is not
+ * required here because the local clock event device cannot go away
+ * under us.
  */
-int tick_broadcast_oneshot_control(unsigned long reason)
+int tick_broadcast_oneshot_control(enum tick_broadcast_state state)
 {
 	struct clock_event_device *bc, *dev;
 	struct tick_device *td;
-	unsigned long flags;
-	ktime_t now;
 	int cpu, ret = 0;
+	ktime_t now;
 
 	/*
 	 * Periodic mode does not care about the enter/exit of power
@@ -703,17 +702,17 @@ int tick_broadcast_oneshot_control(unsigned long reason)
 	 * We are called with preemtion disabled from the depth of the
 	 * idle code, so we can't be moved away.
 	 */
-	cpu = smp_processor_id();
-	td = &per_cpu(tick_cpu_device, cpu);
+	td = this_cpu_ptr(&tick_cpu_device);
 	dev = td->evtdev;
 
 	if (!(dev->features & CLOCK_EVT_FEAT_C3STOP))
 		return 0;
 
+	raw_spin_lock(&tick_broadcast_lock);
 	bc = tick_broadcast_device.evtdev;
+	cpu = smp_processor_id();
 
-	raw_spin_lock_irqsave(&tick_broadcast_lock, flags);
-	if (reason == CLOCK_EVT_NOTIFY_BROADCAST_ENTER) {
+	if (state == TICK_BROADCAST_ENTER) {
 		if (!cpumask_test_and_set_cpu(cpu, tick_broadcast_oneshot_mask)) {
 			WARN_ON_ONCE(cpumask_test_cpu(cpu, tick_broadcast_pending_mask));
 			broadcast_shutdown_local(bc, dev);
@@ -741,7 +740,7 @@ int tick_broadcast_oneshot_control(unsigned long reason)
 			cpumask_clear_cpu(cpu, tick_broadcast_oneshot_mask);
 	} else {
 		if (cpumask_test_and_clear_cpu(cpu, tick_broadcast_oneshot_mask)) {
-			clockevents_set_mode(dev, CLOCK_EVT_MODE_ONESHOT);
+			clockevents_set_state(dev, CLOCK_EVT_STATE_ONESHOT);
 			/*
 			 * The cpu which was handling the broadcast
 			 * timer marked this cpu in the broadcast
@@ -805,9 +804,10 @@ int tick_broadcast_oneshot_control(unsigned long reason)
 		}
 	}
 out:
-	raw_spin_unlock_irqrestore(&tick_broadcast_lock, flags);
+	raw_spin_unlock(&tick_broadcast_lock);
 	return ret;
 }
+EXPORT_SYMBOL_GPL(tick_broadcast_oneshot_control);
 
 /*
  * Reset the one shot broadcast for a cpu
@@ -842,7 +842,7 @@ void tick_broadcast_setup_oneshot(struct clock_event_device *bc)
 
 	/* Set it up only once ! */
 	if (bc->event_handler != tick_handle_oneshot_broadcast) {
-		int was_periodic = bc->mode == CLOCK_EVT_MODE_PERIODIC;
+		int was_periodic = bc->state == CLOCK_EVT_STATE_PERIODIC;
 
 		bc->event_handler = tick_handle_oneshot_broadcast;
 
@@ -858,7 +858,7 @@ void tick_broadcast_setup_oneshot(struct clock_event_device *bc)
 			   tick_broadcast_oneshot_mask, tmpmask);
 
 		if (was_periodic && !cpumask_empty(tmpmask)) {
-			clockevents_set_mode(bc, CLOCK_EVT_MODE_ONESHOT);
+			clockevents_set_state(bc, CLOCK_EVT_STATE_ONESHOT);
 			tick_broadcast_init_next_event(tmpmask,
 						       tick_next_period);
 			tick_broadcast_set_event(bc, cpu, tick_next_period, 1);
@@ -894,14 +894,28 @@ void tick_broadcast_switch_to_oneshot(void)
 	raw_spin_unlock_irqrestore(&tick_broadcast_lock, flags);
 }
 
+#ifdef CONFIG_HOTPLUG_CPU
+void hotplug_cpu__broadcast_tick_pull(int deadcpu)
+{
+	struct clock_event_device *bc;
+	unsigned long flags;
+
+	raw_spin_lock_irqsave(&tick_broadcast_lock, flags);
+	bc = tick_broadcast_device.evtdev;
+
+	if (bc && broadcast_needs_cpu(bc, deadcpu)) {
+		/* This moves the broadcast assignment to this CPU: */
+		clockevents_program_event(bc, bc->next_event, 1);
+	}
+	raw_spin_unlock_irqrestore(&tick_broadcast_lock, flags);
+}
 
 /*
  * Remove a dead CPU from broadcasting
  */
-void tick_shutdown_broadcast_oneshot(unsigned int *cpup)
+void tick_shutdown_broadcast_oneshot(unsigned int cpu)
 {
 	unsigned long flags;
-	unsigned int cpu = *cpup;
 
 	raw_spin_lock_irqsave(&tick_broadcast_lock, flags);
 
@@ -913,10 +927,9 @@ void tick_shutdown_broadcast_oneshot(unsigned int *cpup)
 	cpumask_clear_cpu(cpu, tick_broadcast_pending_mask);
 	cpumask_clear_cpu(cpu, tick_broadcast_force_mask);
 
-	broadcast_move_bc(cpu);
-
 	raw_spin_unlock_irqrestore(&tick_broadcast_lock, flags);
 }
+#endif
 
 /*
  * Check, whether the broadcast device is in one shot mode
diff --git a/kernel/time/tick-common.c b/kernel/time/tick-common.c
index f7c5155..3ae6afa 100644
--- a/kernel/time/tick-common.c
+++ b/kernel/time/tick-common.c
@@ -102,7 +102,7 @@ void tick_handle_periodic(struct clock_event_device *dev)
 
 	tick_periodic(cpu);
 
-	if (dev->mode != CLOCK_EVT_MODE_ONESHOT)
+	if (dev->state != CLOCK_EVT_STATE_ONESHOT)
 		return;
 	for (;;) {
 		/*
@@ -140,7 +140,7 @@ void tick_setup_periodic(struct clock_event_device *dev, int broadcast)
 
 	if ((dev->features & CLOCK_EVT_FEAT_PERIODIC) &&
 	    !tick_broadcast_oneshot_active()) {
-		clockevents_set_mode(dev, CLOCK_EVT_MODE_PERIODIC);
+		clockevents_set_state(dev, CLOCK_EVT_STATE_PERIODIC);
 	} else {
 		unsigned long seq;
 		ktime_t next;
@@ -150,7 +150,7 @@ void tick_setup_periodic(struct clock_event_device *dev, int broadcast)
 			next = tick_next_period;
 		} while (read_seqretry(&jiffies_lock, seq));
 
-		clockevents_set_mode(dev, CLOCK_EVT_MODE_ONESHOT);
+		clockevents_set_state(dev, CLOCK_EVT_STATE_ONESHOT);
 
 		for (;;) {
 			if (!clockevents_program_event(dev, next, false))
@@ -332,14 +332,16 @@ out_bc:
 	tick_install_broadcast_device(newdev);
 }
 
+#ifdef CONFIG_HOTPLUG_CPU
 /*
  * Transfer the do_timer job away from a dying cpu.
  *
- * Called with interrupts disabled.
+ * Called with interrupts disabled. Not locking required. If
+ * tick_do_timer_cpu is owned by this cpu, nothing can change it.
  */
-void tick_handover_do_timer(int *cpup)
+void tick_handover_do_timer(void)
 {
-	if (*cpup == tick_do_timer_cpu) {
+	if (tick_do_timer_cpu == smp_processor_id()) {
 		int cpu = cpumask_first(cpu_online_mask);
 
 		tick_do_timer_cpu = (cpu < nr_cpu_ids) ? cpu :
@@ -354,9 +356,9 @@ void tick_handover_do_timer(int *cpup)
  * access the hardware device itself.
  * We just set the mode and remove it from the lists.
  */
-void tick_shutdown(unsigned int *cpup)
+void tick_shutdown(unsigned int cpu)
 {
-	struct tick_device *td = &per_cpu(tick_cpu_device, *cpup);
+	struct tick_device *td = &per_cpu(tick_cpu_device, cpu);
 	struct clock_event_device *dev = td->evtdev;
 
 	td->mode = TICKDEV_MODE_PERIODIC;
@@ -365,27 +367,42 @@ void tick_shutdown(unsigned int *cpup)
 		 * Prevent that the clock events layer tries to call
 		 * the set mode function!
 		 */
+		dev->state = CLOCK_EVT_STATE_DETACHED;
 		dev->mode = CLOCK_EVT_MODE_UNUSED;
 		clockevents_exchange_device(dev, NULL);
 		dev->event_handler = clockevents_handle_noop;
 		td->evtdev = NULL;
 	}
 }
+#endif
 
-void tick_suspend(void)
+/**
+ * tick_suspend_local - Suspend the local tick device
+ *
+ * Called from the local cpu for freeze with interrupts disabled.
+ *
+ * No locks required. Nothing can change the per cpu device.
+ */
+void tick_suspend_local(void)
 {
 	struct tick_device *td = this_cpu_ptr(&tick_cpu_device);
 
 	clockevents_shutdown(td->evtdev);
 }
 
-void tick_resume(void)
+/**
+ * tick_resume_local - Resume the local tick device
+ *
+ * Called from the local CPU for unfreeze or XEN resume magic.
+ *
+ * No locks required. Nothing can change the per cpu device.
+ */
+void tick_resume_local(void)
 {
 	struct tick_device *td = this_cpu_ptr(&tick_cpu_device);
-	int broadcast = tick_resume_broadcast();
-
-	clockevents_set_mode(td->evtdev, CLOCK_EVT_MODE_RESUME);
+	bool broadcast = tick_resume_check_broadcast();
 
+	clockevents_tick_resume(td->evtdev);
 	if (!broadcast) {
 		if (td->mode == TICKDEV_MODE_PERIODIC)
 			tick_setup_periodic(td->evtdev, 0);
@@ -394,6 +411,35 @@ void tick_resume(void)
 	}
 }
 
+/**
+ * tick_suspend - Suspend the tick and the broadcast device
+ *
+ * Called from syscore_suspend() via timekeeping_suspend with only one
+ * CPU online and interrupts disabled or from tick_unfreeze() under
+ * tick_freeze_lock.
+ *
+ * No locks required. Nothing can change the per cpu device.
+ */
+void tick_suspend(void)
+{
+	tick_suspend_local();
+	tick_suspend_broadcast();
+}
+
+/**
+ * tick_resume - Resume the tick and the broadcast device
+ *
+ * Called from syscore_resume() via timekeeping_resume with only one
+ * CPU online and interrupts disabled.
+ *
+ * No locks required. Nothing can change the per cpu device.
+ */
+void tick_resume(void)
+{
+	tick_resume_broadcast();
+	tick_resume_local();
+}
+
 static DEFINE_RAW_SPINLOCK(tick_freeze_lock);
 static unsigned int tick_freeze_depth;
 
@@ -411,12 +457,10 @@ void tick_freeze(void)
 	raw_spin_lock(&tick_freeze_lock);
 
 	tick_freeze_depth++;
-	if (tick_freeze_depth == num_online_cpus()) {
+	if (tick_freeze_depth == num_online_cpus())
 		timekeeping_suspend();
-	} else {
-		tick_suspend();
-		tick_suspend_broadcast();
-	}
+	else
+		tick_suspend_local();
 
 	raw_spin_unlock(&tick_freeze_lock);
 }
@@ -437,7 +481,7 @@ void tick_unfreeze(void)
 	if (tick_freeze_depth == num_online_cpus())
 		timekeeping_resume();
 	else
-		tick_resume();
+		tick_resume_local();
 
 	tick_freeze_depth--;
 
diff --git a/kernel/time/tick-internal.h b/kernel/time/tick-internal.h
index 366aeb4..b64fdd8 100644
--- a/kernel/time/tick-internal.h
+++ b/kernel/time/tick-internal.h
@@ -5,15 +5,12 @@
 #include <linux/tick.h>
 
 #include "timekeeping.h"
+#include "tick-sched.h"
 
-extern seqlock_t jiffies_lock;
+#ifdef CONFIG_GENERIC_CLOCKEVENTS
 
-#define CS_NAME_LEN	32
-
-#ifdef CONFIG_GENERIC_CLOCKEVENTS_BUILD
-
-#define TICK_DO_TIMER_NONE	-1
-#define TICK_DO_TIMER_BOOT	-2
+# define TICK_DO_TIMER_NONE	-1
+# define TICK_DO_TIMER_BOOT	-2
 
 DECLARE_PER_CPU(struct tick_device, tick_cpu_device);
 extern ktime_t tick_next_period;
@@ -23,21 +20,72 @@ extern int tick_do_timer_cpu __read_mostly;
 extern void tick_setup_periodic(struct clock_event_device *dev, int broadcast);
 extern void tick_handle_periodic(struct clock_event_device *dev);
 extern void tick_check_new_device(struct clock_event_device *dev);
-extern void tick_handover_do_timer(int *cpup);
-extern void tick_shutdown(unsigned int *cpup);
+extern void tick_shutdown(unsigned int cpu);
 extern void tick_suspend(void);
 extern void tick_resume(void);
 extern bool tick_check_replacement(struct clock_event_device *curdev,
 				   struct clock_event_device *newdev);
 extern void tick_install_replacement(struct clock_event_device *dev);
+extern int tick_is_oneshot_available(void);
+extern struct tick_device *tick_get_device(int cpu);
 
-extern void clockevents_shutdown(struct clock_event_device *dev);
+extern int clockevents_tick_resume(struct clock_event_device *dev);
+/* Check, if the device is functional or a dummy for broadcast */
+static inline int tick_device_is_functional(struct clock_event_device *dev)
+{
+	return !(dev->features & CLOCK_EVT_FEAT_DUMMY);
+}
 
+extern void clockevents_shutdown(struct clock_event_device *dev);
+extern void clockevents_exchange_device(struct clock_event_device *old,
+					struct clock_event_device *new);
+extern void clockevents_set_state(struct clock_event_device *dev,
+				 enum clock_event_state state);
+extern int clockevents_program_event(struct clock_event_device *dev,
+				     ktime_t expires, bool force);
+extern void clockevents_handle_noop(struct clock_event_device *dev);
+extern int __clockevents_update_freq(struct clock_event_device *dev, u32 freq);
 extern ssize_t sysfs_get_uname(const char *buf, char *dst, size_t cnt);
 
-/*
- * NO_HZ / high resolution timer shared code
- */
+/* Broadcasting support */
+# ifdef CONFIG_GENERIC_CLOCKEVENTS_BROADCAST
+extern int tick_device_uses_broadcast(struct clock_event_device *dev, int cpu);
+extern void tick_install_broadcast_device(struct clock_event_device *dev);
+extern int tick_is_broadcast_device(struct clock_event_device *dev);
+extern void tick_shutdown_broadcast(unsigned int cpu);
+extern void tick_suspend_broadcast(void);
+extern void tick_resume_broadcast(void);
+extern bool tick_resume_check_broadcast(void);
+extern void tick_broadcast_init(void);
+extern void tick_set_periodic_handler(struct clock_event_device *dev, int broadcast);
+extern int tick_broadcast_update_freq(struct clock_event_device *dev, u32 freq);
+extern struct tick_device *tick_get_broadcast_device(void);
+extern struct cpumask *tick_get_broadcast_mask(void);
+# else /* !CONFIG_GENERIC_CLOCKEVENTS_BROADCAST: */
+static inline void tick_install_broadcast_device(struct clock_event_device *dev) { }
+static inline int tick_is_broadcast_device(struct clock_event_device *dev) { return 0; }
+static inline int tick_device_uses_broadcast(struct clock_event_device *dev, int cpu) { return 0; }
+static inline void tick_do_periodic_broadcast(struct clock_event_device *d) { }
+static inline void tick_shutdown_broadcast(unsigned int cpu) { }
+static inline void tick_suspend_broadcast(void) { }
+static inline void tick_resume_broadcast(void) { }
+static inline bool tick_resume_check_broadcast(void) { return false; }
+static inline void tick_broadcast_init(void) { }
+static inline int tick_broadcast_update_freq(struct clock_event_device *dev, u32 freq) { return -ENODEV; }
+
+/* Set the periodic handler in non broadcast mode */
+static inline void tick_set_periodic_handler(struct clock_event_device *dev, int broadcast)
+{
+	dev->event_handler = tick_handle_periodic;
+}
+# endif /* !CONFIG_GENERIC_CLOCKEVENTS_BROADCAST */
+
+#else /* !GENERIC_CLOCKEVENTS: */
+static inline void tick_suspend(void) { }
+static inline void tick_resume(void) { }
+#endif /* !GENERIC_CLOCKEVENTS */
+
+/* Oneshot related functions */
 #ifdef CONFIG_TICK_ONESHOT
 extern void tick_setup_oneshot(struct clock_event_device *newdev,
 			       void (*handler)(struct clock_event_device *),
@@ -46,58 +94,42 @@ extern int tick_program_event(ktime_t expires, int force);
 extern void tick_oneshot_notify(void);
 extern int tick_switch_to_oneshot(void (*handler)(struct clock_event_device *));
 extern void tick_resume_oneshot(void);
-# ifdef CONFIG_GENERIC_CLOCKEVENTS_BROADCAST
+static inline bool tick_oneshot_possible(void) { return true; }
+extern int tick_oneshot_mode_active(void);
+extern void tick_clock_notify(void);
+extern int tick_check_oneshot_change(int allow_nohz);
+extern int tick_init_highres(void);
+#else /* !CONFIG_TICK_ONESHOT: */
+static inline
+void tick_setup_oneshot(struct clock_event_device *newdev,
+			void (*handler)(struct clock_event_device *),
+			ktime_t nextevt) { BUG(); }
+static inline void tick_resume_oneshot(void) { BUG(); }
+static inline int tick_program_event(ktime_t expires, int force) { return 0; }
+static inline void tick_oneshot_notify(void) { }
+static inline bool tick_oneshot_possible(void) { return false; }
+static inline int tick_oneshot_mode_active(void) { return 0; }
+static inline void tick_clock_notify(void) { }
+static inline int tick_check_oneshot_change(int allow_nohz) { return 0; }
+#endif /* !CONFIG_TICK_ONESHOT */
+
+/* Functions related to oneshot broadcasting */
+#if defined(CONFIG_GENERIC_CLOCKEVENTS_BROADCAST) && defined(CONFIG_TICK_ONESHOT)
 extern void tick_broadcast_setup_oneshot(struct clock_event_device *bc);
-extern int tick_broadcast_oneshot_control(unsigned long reason);
 extern void tick_broadcast_switch_to_oneshot(void);
-extern void tick_shutdown_broadcast_oneshot(unsigned int *cpup);
-extern int tick_resume_broadcast_oneshot(struct clock_event_device *bc);
+extern void tick_shutdown_broadcast_oneshot(unsigned int cpu);
 extern int tick_broadcast_oneshot_active(void);
 extern void tick_check_oneshot_broadcast_this_cpu(void);
 bool tick_broadcast_oneshot_available(void);
-# else /* BROADCAST */
-static inline void tick_broadcast_setup_oneshot(struct clock_event_device *bc)
-{
-	BUG();
-}
-static inline int tick_broadcast_oneshot_control(unsigned long reason) { return 0; }
+extern struct cpumask *tick_get_broadcast_oneshot_mask(void);
+#else /* !(BROADCAST && ONESHOT): */
+static inline void tick_broadcast_setup_oneshot(struct clock_event_device *bc) { BUG(); }
 static inline void tick_broadcast_switch_to_oneshot(void) { }
-static inline void tick_shutdown_broadcast_oneshot(unsigned int *cpup) { }
+static inline void tick_shutdown_broadcast_oneshot(unsigned int cpu) { }
 static inline int tick_broadcast_oneshot_active(void) { return 0; }
 static inline void tick_check_oneshot_broadcast_this_cpu(void) { }
-static inline bool tick_broadcast_oneshot_available(void) { return true; }
-# endif /* !BROADCAST */
-
-#else /* !ONESHOT */
-static inline
-void tick_setup_oneshot(struct clock_event_device *newdev,
-			void (*handler)(struct clock_event_device *),
-			ktime_t nextevt)
-{
-	BUG();
-}
-static inline void tick_resume_oneshot(void)
-{
-	BUG();
-}
-static inline int tick_program_event(ktime_t expires, int force)
-{
-	return 0;
-}
-static inline void tick_oneshot_notify(void) { }
-static inline void tick_broadcast_setup_oneshot(struct clock_event_device *bc)
-{
-	BUG();
-}
-static inline int tick_broadcast_oneshot_control(unsigned long reason) { return 0; }
-static inline void tick_shutdown_broadcast_oneshot(unsigned int *cpup) { }
-static inline int tick_resume_broadcast_oneshot(struct clock_event_device *bc)
-{
-	return 0;
-}
-static inline int tick_broadcast_oneshot_active(void) { return 0; }
-static inline bool tick_broadcast_oneshot_available(void) { return false; }
-#endif /* !TICK_ONESHOT */
+static inline bool tick_broadcast_oneshot_available(void) { return tick_oneshot_possible(); }
+#endif /* !(BROADCAST && ONESHOT) */
 
 /* NO_HZ_FULL internal */
 #ifdef CONFIG_NO_HZ_FULL
@@ -105,68 +137,3 @@ extern void tick_nohz_init(void);
 # else
 static inline void tick_nohz_init(void) { }
 #endif
-
-/*
- * Broadcasting support
- */
-#ifdef CONFIG_GENERIC_CLOCKEVENTS_BROADCAST
-extern int tick_device_uses_broadcast(struct clock_event_device *dev, int cpu);
-extern void tick_install_broadcast_device(struct clock_event_device *dev);
-extern int tick_is_broadcast_device(struct clock_event_device *dev);
-extern void tick_broadcast_on_off(unsigned long reason, int *oncpu);
-extern void tick_shutdown_broadcast(unsigned int *cpup);
-extern void tick_suspend_broadcast(void);
-extern int tick_resume_broadcast(void);
-extern void tick_broadcast_init(void);
-extern void
-tick_set_periodic_handler(struct clock_event_device *dev, int broadcast);
-int tick_broadcast_update_freq(struct clock_event_device *dev, u32 freq);
-
-#else /* !BROADCAST */
-
-static inline void tick_install_broadcast_device(struct clock_event_device *dev)
-{
-}
-
-static inline int tick_is_broadcast_device(struct clock_event_device *dev)
-{
-	return 0;
-}
-static inline int tick_device_uses_broadcast(struct clock_event_device *dev,
-					     int cpu)
-{
-	return 0;
-}
-static inline void tick_do_periodic_broadcast(struct clock_event_device *d) { }
-static inline void tick_broadcast_on_off(unsigned long reason, int *oncpu) { }
-static inline void tick_shutdown_broadcast(unsigned int *cpup) { }
-static inline void tick_suspend_broadcast(void) { }
-static inline int tick_resume_broadcast(void) { return 0; }
-static inline void tick_broadcast_init(void) { }
-static inline int tick_broadcast_update_freq(struct clock_event_device *dev,
-					     u32 freq) { return -ENODEV; }
-
-/*
- * Set the periodic handler in non broadcast mode
- */
-static inline void tick_set_periodic_handler(struct clock_event_device *dev,
-					     int broadcast)
-{
-	dev->event_handler = tick_handle_periodic;
-}
-#endif /* !BROADCAST */
-
-/*
- * Check, if the device is functional or a dummy for broadcast
- */
-static inline int tick_device_is_functional(struct clock_event_device *dev)
-{
-	return !(dev->features & CLOCK_EVT_FEAT_DUMMY);
-}
-
-int __clockevents_update_freq(struct clock_event_device *dev, u32 freq);
-
-#endif
-
-extern void do_timer(unsigned long ticks);
-extern void update_wall_time(void);
diff --git a/kernel/time/tick-oneshot.c b/kernel/time/tick-oneshot.c
index 7ce740e..67a64b1 100644
--- a/kernel/time/tick-oneshot.c
+++ b/kernel/time/tick-oneshot.c
@@ -38,7 +38,7 @@ void tick_resume_oneshot(void)
 {
 	struct clock_event_device *dev = __this_cpu_read(tick_cpu_device.evtdev);
 
-	clockevents_set_mode(dev, CLOCK_EVT_MODE_ONESHOT);
+	clockevents_set_state(dev, CLOCK_EVT_STATE_ONESHOT);
 	clockevents_program_event(dev, ktime_get(), true);
 }
 
@@ -50,7 +50,7 @@ void tick_setup_oneshot(struct clock_event_device *newdev,
 			ktime_t next_event)
 {
 	newdev->event_handler = handler;
-	clockevents_set_mode(newdev, CLOCK_EVT_MODE_ONESHOT);
+	clockevents_set_state(newdev, CLOCK_EVT_STATE_ONESHOT);
 	clockevents_program_event(newdev, next_event, true);
 }
 
@@ -81,7 +81,7 @@ int tick_switch_to_oneshot(void (*handler)(struct clock_event_device *))
 
 	td->mode = TICKDEV_MODE_ONESHOT;
 	dev->event_handler = handler;
-	clockevents_set_mode(dev, CLOCK_EVT_MODE_ONESHOT);
+	clockevents_set_state(dev, CLOCK_EVT_STATE_ONESHOT);
 	tick_broadcast_switch_to_oneshot();
 	return 0;
 }
diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c
index a4c4eda..9142591 100644
--- a/kernel/time/tick-sched.c
+++ b/kernel/time/tick-sched.c
@@ -34,7 +34,7 @@
 /*
  * Per cpu nohz control structure
  */
-DEFINE_PER_CPU(struct tick_sched, tick_cpu_sched);
+static DEFINE_PER_CPU(struct tick_sched, tick_cpu_sched);
 
 /*
  * The time, when the last jiffy update happened. Protected by jiffies_lock.
@@ -416,6 +416,11 @@ static int __init setup_tick_nohz(char *str)
 
 __setup("nohz=", setup_tick_nohz);
 
+int tick_nohz_tick_stopped(void)
+{
+	return __this_cpu_read(tick_cpu_sched.tick_stopped);
+}
+
 /**
  * tick_nohz_update_jiffies - update jiffies when idle was interrupted
  *
diff --git a/kernel/time/tick-sched.h b/kernel/time/tick-sched.h
new file mode 100644
index 0000000..28b5da3
--- /dev/null
+++ b/kernel/time/tick-sched.h
@@ -0,0 +1,74 @@
+#ifndef _TICK_SCHED_H
+#define _TICK_SCHED_H
+
+#include <linux/hrtimer.h>
+
+enum tick_device_mode {
+	TICKDEV_MODE_PERIODIC,
+	TICKDEV_MODE_ONESHOT,
+};
+
+struct tick_device {
+	struct clock_event_device *evtdev;
+	enum tick_device_mode mode;
+};
+
+enum tick_nohz_mode {
+	NOHZ_MODE_INACTIVE,
+	NOHZ_MODE_LOWRES,
+	NOHZ_MODE_HIGHRES,
+};
+
+/**
+ * struct tick_sched - sched tick emulation and no idle tick control/stats
+ * @sched_timer:	hrtimer to schedule the periodic tick in high
+ *			resolution mode
+ * @last_tick:		Store the last tick expiry time when the tick
+ *			timer is modified for nohz sleeps. This is necessary
+ *			to resume the tick timer operation in the timeline
+ *			when the CPU returns from nohz sleep.
+ * @tick_stopped:	Indicator that the idle tick has been stopped
+ * @idle_jiffies:	jiffies at the entry to idle for idle time accounting
+ * @idle_calls:		Total number of idle calls
+ * @idle_sleeps:	Number of idle calls, where the sched tick was stopped
+ * @idle_entrytime:	Time when the idle call was entered
+ * @idle_waketime:	Time when the idle was interrupted
+ * @idle_exittime:	Time when the idle state was left
+ * @idle_sleeptime:	Sum of the time slept in idle with sched tick stopped
+ * @iowait_sleeptime:	Sum of the time slept in idle with sched tick stopped, with IO outstanding
+ * @sleep_length:	Duration of the current idle sleep
+ * @do_timer_lst:	CPU was the last one doing do_timer before going idle
+ */
+struct tick_sched {
+	struct hrtimer			sched_timer;
+	unsigned long			check_clocks;
+	enum tick_nohz_mode		nohz_mode;
+	ktime_t				last_tick;
+	int				inidle;
+	int				tick_stopped;
+	unsigned long			idle_jiffies;
+	unsigned long			idle_calls;
+	unsigned long			idle_sleeps;
+	int				idle_active;
+	ktime_t				idle_entrytime;
+	ktime_t				idle_waketime;
+	ktime_t				idle_exittime;
+	ktime_t				idle_sleeptime;
+	ktime_t				iowait_sleeptime;
+	ktime_t				sleep_length;
+	unsigned long			last_jiffies;
+	unsigned long			next_jiffies;
+	ktime_t				idle_expires;
+	int				do_timer_last;
+};
+
+extern struct tick_sched *tick_get_tick_sched(int cpu);
+
+extern void tick_setup_sched_timer(void);
+#if defined CONFIG_NO_HZ_COMMON || defined CONFIG_HIGH_RES_TIMERS
+extern void tick_cancel_sched_timer(int cpu);
+#else
+static inline void tick_cancel_sched_timer(int cpu) { }
+#endif
+
+#endif
diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c
index 91db941..946acb7 100644
--- a/kernel/time/timekeeping.c
+++ b/kernel/time/timekeeping.c
@@ -59,17 +59,15 @@ struct tk_fast {
 };
 
 static struct tk_fast tk_fast_mono ____cacheline_aligned;
+static struct tk_fast tk_fast_raw  ____cacheline_aligned;
 
 /* flag for if timekeeping is suspended */
 int __read_mostly timekeeping_suspended;
 
-/* Flag for if there is a persistent clock on this platform */
-bool __read_mostly persistent_clock_exist = false;
-
 static inline void tk_normalize_xtime(struct timekeeper *tk)
 {
-	while (tk->tkr.xtime_nsec >= ((u64)NSEC_PER_SEC << tk->tkr.shift)) {
-		tk->tkr.xtime_nsec -= (u64)NSEC_PER_SEC << tk->tkr.shift;
+	while (tk->tkr_mono.xtime_nsec >= ((u64)NSEC_PER_SEC << tk->tkr_mono.shift)) {
+		tk->tkr_mono.xtime_nsec -= (u64)NSEC_PER_SEC << tk->tkr_mono.shift;
 		tk->xtime_sec++;
 	}
 }
@@ -79,20 +77,20 @@ static inline struct timespec64 tk_xtime(struct timekeeper *tk)
 	struct timespec64 ts;
 
 	ts.tv_sec = tk->xtime_sec;
-	ts.tv_nsec = (long)(tk->tkr.xtime_nsec >> tk->tkr.shift);
+	ts.tv_nsec = (long)(tk->tkr_mono.xtime_nsec >> tk->tkr_mono.shift);
 	return ts;
 }
 
 static void tk_set_xtime(struct timekeeper *tk, const struct timespec64 *ts)
 {
 	tk->xtime_sec = ts->tv_sec;
-	tk->tkr.xtime_nsec = (u64)ts->tv_nsec << tk->tkr.shift;
+	tk->tkr_mono.xtime_nsec = (u64)ts->tv_nsec << tk->tkr_mono.shift;
 }
 
 static void tk_xtime_add(struct timekeeper *tk, const struct timespec64 *ts)
 {
 	tk->xtime_sec += ts->tv_sec;
-	tk->tkr.xtime_nsec += (u64)ts->tv_nsec << tk->tkr.shift;
+	tk->tkr_mono.xtime_nsec += (u64)ts->tv_nsec << tk->tkr_mono.shift;
 	tk_normalize_xtime(tk);
 }
 
@@ -118,6 +116,117 @@ static inline void tk_update_sleep_time(struct timekeeper *tk, ktime_t delta)
 	tk->offs_boot = ktime_add(tk->offs_boot, delta);
 }
 
+#ifdef CONFIG_DEBUG_TIMEKEEPING
+#define WARNING_FREQ (HZ*300) /* 5 minute rate-limiting */
+/*
+ * These simple flag variables are managed
+ * without locks, which is racy, but ok since
+ * we don't really care about being super
+ * precise about how many events were seen,
+ * just that a problem was observed.
+ */
+static int timekeeping_underflow_seen;
+static int timekeeping_overflow_seen;
+
+/* last_warning is only modified under the timekeeping lock */
+static long timekeeping_last_warning;
+
+static void timekeeping_check_update(struct timekeeper *tk, cycle_t offset)
+{
+
+	cycle_t max_cycles = tk->tkr_mono.clock->max_cycles;
+	const char *name = tk->tkr_mono.clock->name;
+
+	if (offset > max_cycles) {
+		printk_deferred("WARNING: timekeeping: Cycle offset (%lld) is larger than allowed by the '%s' clock's max_cycles value (%lld): time overflow danger\n",
+				offset, name, max_cycles);
+		printk_deferred("         timekeeping: Your kernel is sick, but tries to cope by capping time updates\n");
+	} else {
+		if (offset > (max_cycles >> 1)) {
+			printk_deferred("INFO: timekeeping: Cycle offset (%lld) is larger than the the '%s' clock's 50%% safety margin (%lld)\n",
+					offset, name, max_cycles >> 1);
+			printk_deferred("      timekeeping: Your kernel is still fine, but is feeling a bit nervous\n");
+		}
+	}
+
+	if (timekeeping_underflow_seen) {
+		if (jiffies - timekeeping_last_warning > WARNING_FREQ) {
+			printk_deferred("WARNING: Underflow in clocksource '%s' observed, time update ignored.\n", name);
+			printk_deferred("         Please report this, consider using a different clocksource, if possible.\n");
+			printk_deferred("         Your kernel is probably still fine.\n");
+			timekeeping_last_warning = jiffies;
+		}
+		timekeeping_underflow_seen = 0;
+	}
+
+	if (timekeeping_overflow_seen) {
+		if (jiffies - timekeeping_last_warning > WARNING_FREQ) {
+			printk_deferred("WARNING: Overflow in clocksource '%s' observed, time update capped.\n", name);
+			printk_deferred("         Please report this, consider using a different clocksource, if possible.\n");
+			printk_deferred("         Your kernel is probably still fine.\n");
+			timekeeping_last_warning = jiffies;
+		}
+		timekeeping_overflow_seen = 0;
+	}
+}
+
+static inline cycle_t timekeeping_get_delta(struct tk_read_base *tkr)
+{
+	cycle_t now, last, mask, max, delta;
+	unsigned int seq;
+
+	/*
+	 * Since we're called holding a seqlock, the data may shift
+	 * under us while we're doing the calculation. This can cause
+	 * false positives, since we'd note a problem but throw the
+	 * results away. So nest another seqlock here to atomically
+	 * grab the points we are checking with.
+	 */
+	do {
+		seq = read_seqcount_begin(&tk_core.seq);
+		now = tkr->read(tkr->clock);
+		last = tkr->cycle_last;
+		mask = tkr->mask;
+		max = tkr->clock->max_cycles;
+	} while (read_seqcount_retry(&tk_core.seq, seq));
+
+	delta = clocksource_delta(now, last, mask);
+
+	/*
+	 * Try to catch underflows by checking if we are seeing small
+	 * mask-relative negative values.
+	 */
+	if (unlikely((~delta & mask) < (mask >> 3))) {
+		timekeeping_underflow_seen = 1;
+		delta = 0;
+	}
+
+	/* Cap delta value to the max_cycles values to avoid mult overflows */
+	if (unlikely(delta > max)) {
+		timekeeping_overflow_seen = 1;
+		delta = tkr->clock->max_cycles;
+	}
+
+	return delta;
+}
+#else
+static inline void timekeeping_check_update(struct timekeeper *tk, cycle_t offset)
+{
+}
+static inline cycle_t timekeeping_get_delta(struct tk_read_base *tkr)
+{
+	cycle_t cycle_now, delta;
+
+	/* read clocksource */
+	cycle_now = tkr->read(tkr->clock);
+
+	/* calculate the delta since the last update_wall_time */
+	delta = clocksource_delta(cycle_now, tkr->cycle_last, tkr->mask);
+
+	return delta;
+}
+#endif
+
 /**
  * tk_setup_internals - Set up internals to use clocksource clock.
  *
@@ -135,11 +244,16 @@ static void tk_setup_internals(struct timekeeper *tk, struct clocksource *clock)
 	u64 tmp, ntpinterval;
 	struct clocksource *old_clock;
 
-	old_clock = tk->tkr.clock;
-	tk->tkr.clock = clock;
-	tk->tkr.read = clock->read;
-	tk->tkr.mask = clock->mask;
-	tk->tkr.cycle_last = tk->tkr.read(clock);
+	old_clock = tk->tkr_mono.clock;
+	tk->tkr_mono.clock = clock;
+	tk->tkr_mono.read = clock->read;
+	tk->tkr_mono.mask = clock->mask;
+	tk->tkr_mono.cycle_last = tk->tkr_mono.read(clock);
+
+	tk->tkr_raw.clock = clock;
+	tk->tkr_raw.read = clock->read;
+	tk->tkr_raw.mask = clock->mask;
+	tk->tkr_raw.cycle_last = tk->tkr_mono.cycle_last;
 
 	/* Do the ns -> cycle conversion first, using original mult */
 	tmp = NTP_INTERVAL_LENGTH;
@@ -163,11 +277,14 @@ static void tk_setup_internals(struct timekeeper *tk, struct clocksource *clock)
 	if (old_clock) {
 		int shift_change = clock->shift - old_clock->shift;
 		if (shift_change < 0)
-			tk->tkr.xtime_nsec >>= -shift_change;
+			tk->tkr_mono.xtime_nsec >>= -shift_change;
 		else
-			tk->tkr.xtime_nsec <<= shift_change;
+			tk->tkr_mono.xtime_nsec <<= shift_change;
 	}
-	tk->tkr.shift = clock->shift;
+	tk->tkr_raw.xtime_nsec = 0;
+
+	tk->tkr_mono.shift = clock->shift;
+	tk->tkr_raw.shift = clock->shift;
 
 	tk->ntp_error = 0;
 	tk->ntp_error_shift = NTP_SCALE_SHIFT - clock->shift;
@@ -178,7 +295,8 @@ static void tk_setup_internals(struct timekeeper *tk, struct clocksource *clock)
 	 * active clocksource. These value will be adjusted via NTP
 	 * to counteract clock drifting.
 	 */
-	tk->tkr.mult = clock->mult;
+	tk->tkr_mono.mult = clock->mult;
+	tk->tkr_raw.mult = clock->mult;
 	tk->ntp_err_mult = 0;
 }
 
@@ -193,14 +311,10 @@ static inline u32 arch_gettimeoffset(void) { return 0; }
 
 static inline s64 timekeeping_get_ns(struct tk_read_base *tkr)
 {
-	cycle_t cycle_now, delta;
+	cycle_t delta;
 	s64 nsec;
 
-	/* read clocksource: */
-	cycle_now = tkr->read(tkr->clock);
-
-	/* calculate the delta since the last update_wall_time: */
-	delta = clocksource_delta(cycle_now, tkr->cycle_last, tkr->mask);
+	delta = timekeeping_get_delta(tkr);
 
 	nsec = delta * tkr->mult + tkr->xtime_nsec;
 	nsec >>= tkr->shift;
@@ -209,25 +323,6 @@ static inline s64 timekeeping_get_ns(struct tk_read_base *tkr)
 	return nsec + arch_gettimeoffset();
 }
 
-static inline s64 timekeeping_get_ns_raw(struct timekeeper *tk)
-{
-	struct clocksource *clock = tk->tkr.clock;
-	cycle_t cycle_now, delta;
-	s64 nsec;
-
-	/* read clocksource: */
-	cycle_now = tk->tkr.read(clock);
-
-	/* calculate the delta since the last update_wall_time: */
-	delta = clocksource_delta(cycle_now, tk->tkr.cycle_last, tk->tkr.mask);
-
-	/* convert delta to nanoseconds. */
-	nsec = clocksource_cyc2ns(delta, clock->mult, clock->shift);
-
-	/* If arch requires, add in get_arch_timeoffset() */
-	return nsec + arch_gettimeoffset();
-}
-
 /**
  * update_fast_timekeeper - Update the fast and NMI safe monotonic timekeeper.
  * @tkr: Timekeeping readout base from which we take the update
@@ -267,18 +362,18 @@ static inline s64 timekeeping_get_ns_raw(struct timekeeper *tk)
  * slightly wrong timestamp (a few nanoseconds). See
  * @ktime_get_mono_fast_ns.
  */
-static void update_fast_timekeeper(struct tk_read_base *tkr)
+static void update_fast_timekeeper(struct tk_read_base *tkr, struct tk_fast *tkf)
 {
-	struct tk_read_base *base = tk_fast_mono.base;
+	struct tk_read_base *base = tkf->base;
 
 	/* Force readers off to base[1] */
-	raw_write_seqcount_latch(&tk_fast_mono.seq);
+	raw_write_seqcount_latch(&tkf->seq);
 
 	/* Update base[0] */
 	memcpy(base, tkr, sizeof(*base));
 
 	/* Force readers back to base[0] */
-	raw_write_seqcount_latch(&tk_fast_mono.seq);
+	raw_write_seqcount_latch(&tkf->seq);
 
 	/* Update base[1] */
 	memcpy(base + 1, base, sizeof(*base));
@@ -316,22 +411,33 @@ static void update_fast_timekeeper(struct tk_read_base *tkr)
  * of the following timestamps. Callers need to be aware of that and
  * deal with it.
  */
-u64 notrace ktime_get_mono_fast_ns(void)
+static __always_inline u64 __ktime_get_fast_ns(struct tk_fast *tkf)
 {
 	struct tk_read_base *tkr;
 	unsigned int seq;
 	u64 now;
 
 	do {
-		seq = raw_read_seqcount(&tk_fast_mono.seq);
-		tkr = tk_fast_mono.base + (seq & 0x01);
-		now = ktime_to_ns(tkr->base_mono) + timekeeping_get_ns(tkr);
+		seq = raw_read_seqcount(&tkf->seq);
+		tkr = tkf->base + (seq & 0x01);
+		now = ktime_to_ns(tkr->base) + timekeeping_get_ns(tkr);
+	} while (read_seqcount_retry(&tkf->seq, seq));
 
-	} while (read_seqcount_retry(&tk_fast_mono.seq, seq));
 	return now;
 }
+
+u64 ktime_get_mono_fast_ns(void)
+{
+	return __ktime_get_fast_ns(&tk_fast_mono);
+}
 EXPORT_SYMBOL_GPL(ktime_get_mono_fast_ns);
 
+u64 ktime_get_raw_fast_ns(void)
+{
+	return __ktime_get_fast_ns(&tk_fast_raw);
+}
+EXPORT_SYMBOL_GPL(ktime_get_raw_fast_ns);
+
 /* Suspend-time cycles value for halted fast timekeeper. */
 static cycle_t cycles_at_suspend;
 
@@ -353,12 +459,17 @@ static cycle_t dummy_clock_read(struct clocksource *cs)
 static void halt_fast_timekeeper(struct timekeeper *tk)
 {
 	static struct tk_read_base tkr_dummy;
-	struct tk_read_base *tkr = &tk->tkr;
+	struct tk_read_base *tkr = &tk->tkr_mono;
 
 	memcpy(&tkr_dummy, tkr, sizeof(tkr_dummy));
 	cycles_at_suspend = tkr->read(tkr->clock);
 	tkr_dummy.read = dummy_clock_read;
-	update_fast_timekeeper(&tkr_dummy);
+	update_fast_timekeeper(&tkr_dummy, &tk_fast_mono);
+
+	tkr = &tk->tkr_raw;
+	memcpy(&tkr_dummy, tkr, sizeof(tkr_dummy));
+	tkr_dummy.read = dummy_clock_read;
+	update_fast_timekeeper(&tkr_dummy, &tk_fast_raw);
 }
 
 #ifdef CONFIG_GENERIC_TIME_VSYSCALL_OLD
@@ -369,8 +480,8 @@ static inline void update_vsyscall(struct timekeeper *tk)
 
 	xt = timespec64_to_timespec(tk_xtime(tk));
 	wm = timespec64_to_timespec(tk->wall_to_monotonic);
-	update_vsyscall_old(&xt, &wm, tk->tkr.clock, tk->tkr.mult,
-			    tk->tkr.cycle_last);
+	update_vsyscall_old(&xt, &wm, tk->tkr_mono.clock, tk->tkr_mono.mult,
+			    tk->tkr_mono.cycle_last);
 }
 
 static inline void old_vsyscall_fixup(struct timekeeper *tk)
@@ -387,11 +498,11 @@ static inline void old_vsyscall_fixup(struct timekeeper *tk)
 	* (shifted nanoseconds), and CONFIG_GENERIC_TIME_VSYSCALL_OLD
 	* users are removed, this can be killed.
 	*/
-	remainder = tk->tkr.xtime_nsec & ((1ULL << tk->tkr.shift) - 1);
-	tk->tkr.xtime_nsec -= remainder;
-	tk->tkr.xtime_nsec += 1ULL << tk->tkr.shift;
+	remainder = tk->tkr_mono.xtime_nsec & ((1ULL << tk->tkr_mono.shift) - 1);
+	tk->tkr_mono.xtime_nsec -= remainder;
+	tk->tkr_mono.xtime_nsec += 1ULL << tk->tkr_mono.shift;
 	tk->ntp_error += remainder << tk->ntp_error_shift;
-	tk->ntp_error -= (1ULL << tk->tkr.shift) << tk->ntp_error_shift;
+	tk->ntp_error -= (1ULL << tk->tkr_mono.shift) << tk->ntp_error_shift;
 }
 #else
 #define old_vsyscall_fixup(tk)
@@ -456,17 +567,17 @@ static inline void tk_update_ktime_data(struct timekeeper *tk)
 	 */
 	seconds = (u64)(tk->xtime_sec + tk->wall_to_monotonic.tv_sec);
 	nsec = (u32) tk->wall_to_monotonic.tv_nsec;
-	tk->tkr.base_mono = ns_to_ktime(seconds * NSEC_PER_SEC + nsec);
+	tk->tkr_mono.base = ns_to_ktime(seconds * NSEC_PER_SEC + nsec);
 
 	/* Update the monotonic raw base */
-	tk->base_raw = timespec64_to_ktime(tk->raw_time);
+	tk->tkr_raw.base = timespec64_to_ktime(tk->raw_time);
 
 	/*
 	 * The sum of the nanoseconds portions of xtime and
 	 * wall_to_monotonic can be greater/equal one second. Take
 	 * this into account before updating tk->ktime_sec.
 	 */
-	nsec += (u32)(tk->tkr.xtime_nsec >> tk->tkr.shift);
+	nsec += (u32)(tk->tkr_mono.xtime_nsec >> tk->tkr_mono.shift);
 	if (nsec >= NSEC_PER_SEC)
 		seconds++;
 	tk->ktime_sec = seconds;
@@ -489,7 +600,8 @@ static void timekeeping_update(struct timekeeper *tk, unsigned int action)
 		memcpy(&shadow_timekeeper, &tk_core.timekeeper,
 		       sizeof(tk_core.timekeeper));
 
-	update_fast_timekeeper(&tk->tkr);
+	update_fast_timekeeper(&tk->tkr_mono, &tk_fast_mono);
+	update_fast_timekeeper(&tk->tkr_raw,  &tk_fast_raw);
 }
 
 /**
@@ -501,22 +613,23 @@ static void timekeeping_update(struct timekeeper *tk, unsigned int action)
  */
 static void timekeeping_forward_now(struct timekeeper *tk)
 {
-	struct clocksource *clock = tk->tkr.clock;
+	struct clocksource *clock = tk->tkr_mono.clock;
 	cycle_t cycle_now, delta;
 	s64 nsec;
 
-	cycle_now = tk->tkr.read(clock);
-	delta = clocksource_delta(cycle_now, tk->tkr.cycle_last, tk->tkr.mask);
-	tk->tkr.cycle_last = cycle_now;
+	cycle_now = tk->tkr_mono.read(clock);
+	delta = clocksource_delta(cycle_now, tk->tkr_mono.cycle_last, tk->tkr_mono.mask);
+	tk->tkr_mono.cycle_last = cycle_now;
+	tk->tkr_raw.cycle_last  = cycle_now;
 
-	tk->tkr.xtime_nsec += delta * tk->tkr.mult;
+	tk->tkr_mono.xtime_nsec += delta * tk->tkr_mono.mult;
 
 	/* If arch requires, add in get_arch_timeoffset() */
-	tk->tkr.xtime_nsec += (u64)arch_gettimeoffset() << tk->tkr.shift;
+	tk->tkr_mono.xtime_nsec += (u64)arch_gettimeoffset() << tk->tkr_mono.shift;
 
 	tk_normalize_xtime(tk);
 
-	nsec = clocksource_cyc2ns(delta, clock->mult, clock->shift);
+	nsec = clocksource_cyc2ns(delta, tk->tkr_raw.mult, tk->tkr_raw.shift);
 	timespec64_add_ns(&tk->raw_time, nsec);
 }
 
@@ -537,7 +650,7 @@ int __getnstimeofday64(struct timespec64 *ts)
 		seq = read_seqcount_begin(&tk_core.seq);
 
 		ts->tv_sec = tk->xtime_sec;
-		nsecs = timekeeping_get_ns(&tk->tkr);
+		nsecs = timekeeping_get_ns(&tk->tkr_mono);
 
 	} while (read_seqcount_retry(&tk_core.seq, seq));
 
@@ -577,8 +690,8 @@ ktime_t ktime_get(void)
 
 	do {
 		seq = read_seqcount_begin(&tk_core.seq);
-		base = tk->tkr.base_mono;
-		nsecs = timekeeping_get_ns(&tk->tkr);
+		base = tk->tkr_mono.base;
+		nsecs = timekeeping_get_ns(&tk->tkr_mono);
 
 	} while (read_seqcount_retry(&tk_core.seq, seq));
 
@@ -603,8 +716,8 @@ ktime_t ktime_get_with_offset(enum tk_offsets offs)
 
 	do {
 		seq = read_seqcount_begin(&tk_core.seq);
-		base = ktime_add(tk->tkr.base_mono, *offset);
-		nsecs = timekeeping_get_ns(&tk->tkr);
+		base = ktime_add(tk->tkr_mono.base, *offset);
+		nsecs = timekeeping_get_ns(&tk->tkr_mono);
 
 	} while (read_seqcount_retry(&tk_core.seq, seq));
 
@@ -645,8 +758,8 @@ ktime_t ktime_get_raw(void)
 
 	do {
 		seq = read_seqcount_begin(&tk_core.seq);
-		base = tk->base_raw;
-		nsecs = timekeeping_get_ns_raw(tk);
+		base = tk->tkr_raw.base;
+		nsecs = timekeeping_get_ns(&tk->tkr_raw);
 
 	} while (read_seqcount_retry(&tk_core.seq, seq));
 
@@ -674,7 +787,7 @@ void ktime_get_ts64(struct timespec64 *ts)
 	do {
 		seq = read_seqcount_begin(&tk_core.seq);
 		ts->tv_sec = tk->xtime_sec;
-		nsec = timekeeping_get_ns(&tk->tkr);
+		nsec = timekeeping_get_ns(&tk->tkr_mono);
 		tomono = tk->wall_to_monotonic;
 
 	} while (read_seqcount_retry(&tk_core.seq, seq));
@@ -759,8 +872,8 @@ void getnstime_raw_and_real(struct timespec *ts_raw, struct timespec *ts_real)
 		ts_real->tv_sec = tk->xtime_sec;
 		ts_real->tv_nsec = 0;
 
-		nsecs_raw = timekeeping_get_ns_raw(tk);
-		nsecs_real = timekeeping_get_ns(&tk->tkr);
+		nsecs_raw  = timekeeping_get_ns(&tk->tkr_raw);
+		nsecs_real = timekeeping_get_ns(&tk->tkr_mono);
 
 	} while (read_seqcount_retry(&tk_core.seq, seq));
 
@@ -943,7 +1056,7 @@ static int change_clocksource(void *data)
 	 */
 	if (try_module_get(new->owner)) {
 		if (!new->enable || new->enable(new) == 0) {
-			old = tk->tkr.clock;
+			old = tk->tkr_mono.clock;
 			tk_setup_internals(tk, new);
 			if (old->disable)
 				old->disable(old);
@@ -971,11 +1084,11 @@ int timekeeping_notify(struct clocksource *clock)
 {
 	struct timekeeper *tk = &tk_core.timekeeper;
 
-	if (tk->tkr.clock == clock)
+	if (tk->tkr_mono.clock == clock)
 		return 0;
 	stop_machine(change_clocksource, clock, NULL);
 	tick_clock_notify();
-	return tk->tkr.clock == clock ? 0 : -1;
+	return tk->tkr_mono.clock == clock ? 0 : -1;
 }
 
 /**
@@ -993,7 +1106,7 @@ void getrawmonotonic64(struct timespec64 *ts)
 
 	do {
 		seq = read_seqcount_begin(&tk_core.seq);
-		nsecs = timekeeping_get_ns_raw(tk);
+		nsecs = timekeeping_get_ns(&tk->tkr_raw);
 		ts64 = tk->raw_time;
 
 	} while (read_seqcount_retry(&tk_core.seq, seq));
@@ -1016,7 +1129,7 @@ int timekeeping_valid_for_hres(void)
 	do {
 		seq = read_seqcount_begin(&tk_core.seq);
 
-		ret = tk->tkr.clock->flags & CLOCK_SOURCE_VALID_FOR_HRES;
+		ret = tk->tkr_mono.clock->flags & CLOCK_SOURCE_VALID_FOR_HRES;
 
 	} while (read_seqcount_retry(&tk_core.seq, seq));
 
@@ -1035,7 +1148,7 @@ u64 timekeeping_max_deferment(void)
 	do {
 		seq = read_seqcount_begin(&tk_core.seq);
 
-		ret = tk->tkr.clock->max_idle_ns;
+		ret = tk->tkr_mono.clock->max_idle_ns;
 
 	} while (read_seqcount_retry(&tk_core.seq, seq));
 
@@ -1057,6 +1170,14 @@ void __weak read_persistent_clock(struct timespec *ts)
 	ts->tv_nsec = 0;
 }
 
+void __weak read_persistent_clock64(struct timespec64 *ts64)
+{
+	struct timespec ts;
+
+	read_persistent_clock(&ts);
+	*ts64 = timespec_to_timespec64(ts);
+}
+
 /**
  * read_boot_clock -  Return time of the system start.
  *
@@ -1072,6 +1193,20 @@ void __weak read_boot_clock(struct timespec *ts)
 	ts->tv_nsec = 0;
 }
 
+void __weak read_boot_clock64(struct timespec64 *ts64)
+{
+	struct timespec ts;
+
+	read_boot_clock(&ts);
+	*ts64 = timespec_to_timespec64(ts);
+}
+
+/* Flag for if timekeeping_resume() has injected sleeptime */
+static bool sleeptime_injected;
+
+/* Flag for if there is a persistent clock on this platform */
+static bool persistent_clock_exists;
+
 /*
  * timekeeping_init - Initializes the clocksource and common timekeeping values
  */
@@ -1081,20 +1216,17 @@ void __init timekeeping_init(void)
 	struct clocksource *clock;
 	unsigned long flags;
 	struct timespec64 now, boot, tmp;
-	struct timespec ts;
 
-	read_persistent_clock(&ts);
-	now = timespec_to_timespec64(ts);
+	read_persistent_clock64(&now);
 	if (!timespec64_valid_strict(&now)) {
 		pr_warn("WARNING: Persistent clock returned invalid value!\n"
 			"         Check your CMOS/BIOS settings.\n");
 		now.tv_sec = 0;
 		now.tv_nsec = 0;
 	} else if (now.tv_sec || now.tv_nsec)
-		persistent_clock_exist = true;
+		persistent_clock_exists = true;
 
-	read_boot_clock(&ts);
-	boot = timespec_to_timespec64(ts);
+	read_boot_clock64(&boot);
 	if (!timespec64_valid_strict(&boot)) {
 		pr_warn("WARNING: Boot clock returned invalid value!\n"
 			"         Check your CMOS/BIOS settings.\n");
@@ -1114,7 +1246,6 @@ void __init timekeeping_init(void)
 	tk_set_xtime(tk, &now);
 	tk->raw_time.tv_sec = 0;
 	tk->raw_time.tv_nsec = 0;
-	tk->base_raw.tv64 = 0;
 	if (boot.tv_sec == 0 && boot.tv_nsec == 0)
 		boot = tk_xtime(tk);
 
@@ -1127,7 +1258,7 @@ void __init timekeeping_init(void)
 	raw_spin_unlock_irqrestore(&timekeeper_lock, flags);
 }
 
-/* time in seconds when suspend began */
+/* time in seconds when suspend began for persistent clock */
 static struct timespec64 timekeeping_suspend_time;
 
 /**
@@ -1152,12 +1283,49 @@ static void __timekeeping_inject_sleeptime(struct timekeeper *tk,
 	tk_debug_account_sleep_time(delta);
 }
 
+#if defined(CONFIG_PM_SLEEP) && defined(CONFIG_RTC_HCTOSYS_DEVICE)
+/**
+ * We have three kinds of time sources to use for sleep time
+ * injection, the preference order is:
+ * 1) non-stop clocksource
+ * 2) persistent clock (ie: RTC accessible when irqs are off)
+ * 3) RTC
+ *
+ * 1) and 2) are used by timekeeping, 3) by RTC subsystem.
+ * If system has neither 1) nor 2), 3) will be used finally.
+ *
+ *
+ * If timekeeping has injected sleeptime via either 1) or 2),
+ * 3) becomes needless, so in this case we don't need to call
+ * rtc_resume(), and this is what timekeeping_rtc_skipresume()
+ * means.
+ */
+bool timekeeping_rtc_skipresume(void)
+{
+	return sleeptime_injected;
+}
+
+/**
+ * 1) can be determined whether to use or not only when doing
+ * timekeeping_resume() which is invoked after rtc_suspend(),
+ * so we can't skip rtc_suspend() surely if system has 1).
+ *
+ * But if system has 2), 2) will definitely be used, so in this
+ * case we don't need to call rtc_suspend(), and this is what
+ * timekeeping_rtc_skipsuspend() means.
+ */
+bool timekeeping_rtc_skipsuspend(void)
+{
+	return persistent_clock_exists;
+}
+
 /**
  * timekeeping_inject_sleeptime64 - Adds suspend interval to timeekeeping values
  * @delta: pointer to a timespec64 delta value
  *
- * This hook is for architectures that cannot support read_persistent_clock
+ * This hook is for architectures that cannot support read_persistent_clock64
  * because their RTC/persistent clock is only accessible when irqs are enabled.
+ * and also don't have an effective nonstop clocksource.
  *
  * This function should only be called by rtc_resume(), and allows
  * a suspend offset to be injected into the timekeeping values.
@@ -1167,13 +1335,6 @@ void timekeeping_inject_sleeptime64(struct timespec64 *delta)
 	struct timekeeper *tk = &tk_core.timekeeper;
 	unsigned long flags;
 
-	/*
-	 * Make sure we don't set the clock twice, as timekeeping_resume()
-	 * already did it
-	 */
-	if (has_persistent_clock())
-		return;
-
 	raw_spin_lock_irqsave(&timekeeper_lock, flags);
 	write_seqcount_begin(&tk_core.seq);
 
@@ -1189,26 +1350,21 @@ void timekeeping_inject_sleeptime64(struct timespec64 *delta)
 	/* signal hrtimers about time change */
 	clock_was_set();
 }
+#endif
 
 /**
  * timekeeping_resume - Resumes the generic timekeeping subsystem.
- *
- * This is for the generic clocksource timekeeping.
- * xtime/wall_to_monotonic/jiffies/etc are
- * still managed by arch specific suspend/resume code.
  */
 void timekeeping_resume(void)
 {
 	struct timekeeper *tk = &tk_core.timekeeper;
-	struct clocksource *clock = tk->tkr.clock;
+	struct clocksource *clock = tk->tkr_mono.clock;
 	unsigned long flags;
 	struct timespec64 ts_new, ts_delta;
-	struct timespec tmp;
 	cycle_t cycle_now, cycle_delta;
-	bool suspendtime_found = false;
 
-	read_persistent_clock(&tmp);
-	ts_new = timespec_to_timespec64(tmp);
+	sleeptime_injected = false;
+	read_persistent_clock64(&ts_new);
 
 	clockevents_resume();
 	clocksource_resume();
@@ -1228,16 +1384,16 @@ void timekeeping_resume(void)
 	 * The less preferred source will only be tried if there is no better
 	 * usable source. The rtc part is handled separately in rtc core code.
 	 */
-	cycle_now = tk->tkr.read(clock);
+	cycle_now = tk->tkr_mono.read(clock);
 	if ((clock->flags & CLOCK_SOURCE_SUSPEND_NONSTOP) &&
-		cycle_now > tk->tkr.cycle_last) {
+		cycle_now > tk->tkr_mono.cycle_last) {
 		u64 num, max = ULLONG_MAX;
 		u32 mult = clock->mult;
 		u32 shift = clock->shift;
 		s64 nsec = 0;
 
-		cycle_delta = clocksource_delta(cycle_now, tk->tkr.cycle_last,
-						tk->tkr.mask);
+		cycle_delta = clocksource_delta(cycle_now, tk->tkr_mono.cycle_last,
+						tk->tkr_mono.mask);
 
 		/*
 		 * "cycle_delta * mutl" may cause 64 bits overflow, if the
@@ -1253,17 +1409,19 @@ void timekeeping_resume(void)
 		nsec += ((u64) cycle_delta * mult) >> shift;
 
 		ts_delta = ns_to_timespec64(nsec);
-		suspendtime_found = true;
+		sleeptime_injected = true;
 	} else if (timespec64_compare(&ts_new, &timekeeping_suspend_time) > 0) {
 		ts_delta = timespec64_sub(ts_new, timekeeping_suspend_time);
-		suspendtime_found = true;
+		sleeptime_injected = true;
 	}
 
-	if (suspendtime_found)
+	if (sleeptime_injected)
 		__timekeeping_inject_sleeptime(tk, &ts_delta);
 
 	/* Re-base the last cycle value */
-	tk->tkr.cycle_last = cycle_now;
+	tk->tkr_mono.cycle_last = cycle_now;
+	tk->tkr_raw.cycle_last  = cycle_now;
+
 	tk->ntp_error = 0;
 	timekeeping_suspended = 0;
 	timekeeping_update(tk, TK_MIRROR | TK_CLOCK_WAS_SET);
@@ -1272,9 +1430,7 @@ void timekeeping_resume(void)
 
 	touch_softlockup_watchdog();
 
-	clockevents_notify(CLOCK_EVT_NOTIFY_RESUME, NULL);
-
-	/* Resume hrtimers */
+	tick_resume();
 	hrtimers_resume();
 }
 
@@ -1284,10 +1440,8 @@ int timekeeping_suspend(void)
 	unsigned long flags;
 	struct timespec64		delta, delta_delta;
 	static struct timespec64	old_delta;
-	struct timespec tmp;
 
-	read_persistent_clock(&tmp);
-	timekeeping_suspend_time = timespec_to_timespec64(tmp);
+	read_persistent_clock64(&timekeeping_suspend_time);
 
 	/*
 	 * On some systems the persistent_clock can not be detected at
@@ -1295,31 +1449,33 @@ int timekeeping_suspend(void)
 	 * value returned, update the persistent_clock_exists flag.
 	 */
 	if (timekeeping_suspend_time.tv_sec || timekeeping_suspend_time.tv_nsec)
-		persistent_clock_exist = true;
+		persistent_clock_exists = true;
 
 	raw_spin_lock_irqsave(&timekeeper_lock, flags);
 	write_seqcount_begin(&tk_core.seq);
 	timekeeping_forward_now(tk);
 	timekeeping_suspended = 1;
 
-	/*
-	 * To avoid drift caused by repeated suspend/resumes,
-	 * which each can add ~1 second drift error,
-	 * try to compensate so the difference in system time
-	 * and persistent_clock time stays close to constant.
-	 */
-	delta = timespec64_sub(tk_xtime(tk), timekeeping_suspend_time);
-	delta_delta = timespec64_sub(delta, old_delta);
-	if (abs(delta_delta.tv_sec)  >= 2) {
+	if (persistent_clock_exists) {
 		/*
-		 * if delta_delta is too large, assume time correction
-		 * has occured and set old_delta to the current delta.
+		 * To avoid drift caused by repeated suspend/resumes,
+		 * which each can add ~1 second drift error,
+		 * try to compensate so the difference in system time
+		 * and persistent_clock time stays close to constant.
 		 */
-		old_delta = delta;
-	} else {
-		/* Otherwise try to adjust old_system to compensate */
-		timekeeping_suspend_time =
-			timespec64_add(timekeeping_suspend_time, delta_delta);
+		delta = timespec64_sub(tk_xtime(tk), timekeeping_suspend_time);
+		delta_delta = timespec64_sub(delta, old_delta);
+		if (abs(delta_delta.tv_sec) >= 2) {
+			/*
+			 * if delta_delta is too large, assume time correction
+			 * has occurred and set old_delta to the current delta.
+			 */
+			old_delta = delta;
+		} else {
+			/* Otherwise try to adjust old_system to compensate */
+			timekeeping_suspend_time =
+				timespec64_add(timekeeping_suspend_time, delta_delta);
+		}
 	}
 
 	timekeeping_update(tk, TK_MIRROR);
@@ -1327,7 +1483,7 @@ int timekeeping_suspend(void)
 	write_seqcount_end(&tk_core.seq);
 	raw_spin_unlock_irqrestore(&timekeeper_lock, flags);
 
-	clockevents_notify(CLOCK_EVT_NOTIFY_SUSPEND, NULL);
+	tick_suspend();
 	clocksource_suspend();
 	clockevents_suspend();
 
@@ -1416,15 +1572,15 @@ static __always_inline void timekeeping_apply_adjustment(struct timekeeper *tk,
 	 *
 	 * XXX - TODO: Doc ntp_error calculation.
 	 */
-	if ((mult_adj > 0) && (tk->tkr.mult + mult_adj < mult_adj)) {
+	if ((mult_adj > 0) && (tk->tkr_mono.mult + mult_adj < mult_adj)) {
 		/* NTP adjustment caused clocksource mult overflow */
 		WARN_ON_ONCE(1);
 		return;
 	}
 
-	tk->tkr.mult += mult_adj;
+	tk->tkr_mono.mult += mult_adj;
 	tk->xtime_interval += interval;
-	tk->tkr.xtime_nsec -= offset;
+	tk->tkr_mono.xtime_nsec -= offset;
 	tk->ntp_error -= (interval - offset) << tk->ntp_error_shift;
 }
 
@@ -1486,13 +1642,13 @@ static void timekeeping_adjust(struct timekeeper *tk, s64 offset)
 		tk->ntp_err_mult = 0;
 	}
 
-	if (unlikely(tk->tkr.clock->maxadj &&
-		(abs(tk->tkr.mult - tk->tkr.clock->mult)
-			> tk->tkr.clock->maxadj))) {
+	if (unlikely(tk->tkr_mono.clock->maxadj &&
+		(abs(tk->tkr_mono.mult - tk->tkr_mono.clock->mult)
+			> tk->tkr_mono.clock->maxadj))) {
 		printk_once(KERN_WARNING
 			"Adjusting %s more than 11%% (%ld vs %ld)\n",
-			tk->tkr.clock->name, (long)tk->tkr.mult,
-			(long)tk->tkr.clock->mult + tk->tkr.clock->maxadj);
+			tk->tkr_mono.clock->name, (long)tk->tkr_mono.mult,
+			(long)tk->tkr_mono.clock->mult + tk->tkr_mono.clock->maxadj);
 	}
 
 	/*
@@ -1509,9 +1665,9 @@ static void timekeeping_adjust(struct timekeeper *tk, s64 offset)
 	 * We'll correct this error next time through this function, when
 	 * xtime_nsec is not as small.
 	 */
-	if (unlikely((s64)tk->tkr.xtime_nsec < 0)) {
-		s64 neg = -(s64)tk->tkr.xtime_nsec;
-		tk->tkr.xtime_nsec = 0;
+	if (unlikely((s64)tk->tkr_mono.xtime_nsec < 0)) {
+		s64 neg = -(s64)tk->tkr_mono.xtime_nsec;
+		tk->tkr_mono.xtime_nsec = 0;
 		tk->ntp_error += neg << tk->ntp_error_shift;
 	}
 }
@@ -1526,13 +1682,13 @@ static void timekeeping_adjust(struct timekeeper *tk, s64 offset)
  */
 static inline unsigned int accumulate_nsecs_to_secs(struct timekeeper *tk)
 {
-	u64 nsecps = (u64)NSEC_PER_SEC << tk->tkr.shift;
+	u64 nsecps = (u64)NSEC_PER_SEC << tk->tkr_mono.shift;
 	unsigned int clock_set = 0;
 
-	while (tk->tkr.xtime_nsec >= nsecps) {
+	while (tk->tkr_mono.xtime_nsec >= nsecps) {
 		int leap;
 
-		tk->tkr.xtime_nsec -= nsecps;
+		tk->tkr_mono.xtime_nsec -= nsecps;
 		tk->xtime_sec++;
 
 		/* Figure out if its a leap sec and apply if needed */
@@ -1577,9 +1733,10 @@ static cycle_t logarithmic_accumulation(struct timekeeper *tk, cycle_t offset,
 
 	/* Accumulate one shifted interval */
 	offset -= interval;
-	tk->tkr.cycle_last += interval;
+	tk->tkr_mono.cycle_last += interval;
+	tk->tkr_raw.cycle_last  += interval;
 
-	tk->tkr.xtime_nsec += tk->xtime_interval << shift;
+	tk->tkr_mono.xtime_nsec += tk->xtime_interval << shift;
 	*clock_set |= accumulate_nsecs_to_secs(tk);
 
 	/* Accumulate raw time */
@@ -1622,14 +1779,17 @@ void update_wall_time(void)
 #ifdef CONFIG_ARCH_USES_GETTIMEOFFSET
 	offset = real_tk->cycle_interval;
 #else
-	offset = clocksource_delta(tk->tkr.read(tk->tkr.clock),
-				   tk->tkr.cycle_last, tk->tkr.mask);
+	offset = clocksource_delta(tk->tkr_mono.read(tk->tkr_mono.clock),
+				   tk->tkr_mono.cycle_last, tk->tkr_mono.mask);
 #endif
 
 	/* Check if there's really nothing to do */
 	if (offset < real_tk->cycle_interval)
 		goto out;
 
+	/* Do some additional sanity checking */
+	timekeeping_check_update(real_tk, offset);
+
 	/*
 	 * With NO_HZ we may have to accumulate many cycle_intervals
 	 * (think "ticks") worth of time at once. To do this efficiently,
@@ -1784,8 +1944,8 @@ ktime_t ktime_get_update_offsets_tick(ktime_t *offs_real, ktime_t *offs_boot,
 	do {
 		seq = read_seqcount_begin(&tk_core.seq);
 
-		base = tk->tkr.base_mono;
-		nsecs = tk->tkr.xtime_nsec >> tk->tkr.shift;
+		base = tk->tkr_mono.base;
+		nsecs = tk->tkr_mono.xtime_nsec >> tk->tkr_mono.shift;
 
 		*offs_real = tk->offs_real;
 		*offs_boot = tk->offs_boot;
@@ -1816,8 +1976,8 @@ ktime_t ktime_get_update_offsets_now(ktime_t *offs_real, ktime_t *offs_boot,
 	do {
 		seq = read_seqcount_begin(&tk_core.seq);
 
-		base = tk->tkr.base_mono;
-		nsecs = timekeeping_get_ns(&tk->tkr);
+		base = tk->tkr_mono.base;
+		nsecs = timekeeping_get_ns(&tk->tkr_mono);
 
 		*offs_real = tk->offs_real;
 		*offs_boot = tk->offs_boot;
diff --git a/kernel/time/timekeeping.h b/kernel/time/timekeeping.h
index 1d91416..ead8794 100644
--- a/kernel/time/timekeeping.h
+++ b/kernel/time/timekeeping.h
@@ -19,4 +19,11 @@ extern void timekeeping_clocktai(struct timespec *ts);
 extern int timekeeping_suspend(void);
 extern void timekeeping_resume(void);
 
+extern void do_timer(unsigned long ticks);
+extern void update_wall_time(void);
+
+extern seqlock_t jiffies_lock;
+
+#define CS_NAME_LEN	32
+
 #endif
diff --git a/kernel/time/timer.c b/kernel/time/timer.c
index 2d3f5c5..2ece3aa 100644
--- a/kernel/time/timer.c
+++ b/kernel/time/timer.c
@@ -90,8 +90,18 @@ struct tvec_base {
 	struct tvec tv5;
 } ____cacheline_aligned;
 
+/*
+ * __TIMER_INITIALIZER() needs to set ->base to a valid pointer (because we've
+ * made NULL special, hint: lock_timer_base()) and we cannot get a compile time
+ * pointer to per-cpu entries because we don't know where we'll map the section,
+ * even for the boot cpu.
+ *
+ * And so we use boot_tvec_bases for boot CPU and per-cpu __tvec_bases for the
+ * rest of them.
+ */
 struct tvec_base boot_tvec_bases;
 EXPORT_SYMBOL(boot_tvec_bases);
+
 static DEFINE_PER_CPU(struct tvec_base *, tvec_bases) = &boot_tvec_bases;
 
 /* Functions below help us manage 'deferrable' flag */
@@ -1027,6 +1037,8 @@ int try_to_del_timer_sync(struct timer_list *timer)
 EXPORT_SYMBOL(try_to_del_timer_sync);
 
 #ifdef CONFIG_SMP
+static DEFINE_PER_CPU(struct tvec_base, __tvec_bases);
+
 /**
  * del_timer_sync - deactivate a timer and wait for the handler to finish.
  * @timer: the timer to be deactivated
@@ -1532,64 +1544,6 @@ signed long __sched schedule_timeout_uninterruptible(signed long timeout)
 }
 EXPORT_SYMBOL(schedule_timeout_uninterruptible);
 
-static int init_timers_cpu(int cpu)
-{
-	int j;
-	struct tvec_base *base;
-	static char tvec_base_done[NR_CPUS];
-
-	if (!tvec_base_done[cpu]) {
-		static char boot_done;
-
-		if (boot_done) {
-			/*
-			 * The APs use this path later in boot
-			 */
-			base = kzalloc_node(sizeof(*base), GFP_KERNEL,
-					    cpu_to_node(cpu));
-			if (!base)
-				return -ENOMEM;
-
-			/* Make sure tvec_base has TIMER_FLAG_MASK bits free */
-			if (WARN_ON(base != tbase_get_base(base))) {
-				kfree(base);
-				return -ENOMEM;
-			}
-			per_cpu(tvec_bases, cpu) = base;
-		} else {
-			/*
-			 * This is for the boot CPU - we use compile-time
-			 * static initialisation because per-cpu memory isn't
-			 * ready yet and because the memory allocators are not
-			 * initialised either.
-			 */
-			boot_done = 1;
-			base = &boot_tvec_bases;
-		}
-		spin_lock_init(&base->lock);
-		tvec_base_done[cpu] = 1;
-		base->cpu = cpu;
-	} else {
-		base = per_cpu(tvec_bases, cpu);
-	}
-
-
-	for (j = 0; j < TVN_SIZE; j++) {
-		INIT_LIST_HEAD(base->tv5.vec + j);
-		INIT_LIST_HEAD(base->tv4.vec + j);
-		INIT_LIST_HEAD(base->tv3.vec + j);
-		INIT_LIST_HEAD(base->tv2.vec + j);
-	}
-	for (j = 0; j < TVR_SIZE; j++)
-		INIT_LIST_HEAD(base->tv1.vec + j);
-
-	base->timer_jiffies = jiffies;
-	base->next_timer = base->timer_jiffies;
-	base->active_timers = 0;
-	base->all_timers = 0;
-	return 0;
-}
-
 #ifdef CONFIG_HOTPLUG_CPU
 static void migrate_timer_list(struct tvec_base *new_base, struct list_head *head)
 {
@@ -1631,55 +1585,86 @@ static void migrate_timers(int cpu)
 		migrate_timer_list(new_base, old_base->tv5.vec + i);
 	}
 
+	old_base->active_timers = 0;
+	old_base->all_timers = 0;
+
 	spin_unlock(&old_base->lock);
 	spin_unlock_irq(&new_base->lock);
 	put_cpu_var(tvec_bases);
 }
-#endif /* CONFIG_HOTPLUG_CPU */
 
 static int timer_cpu_notify(struct notifier_block *self,
 				unsigned long action, void *hcpu)
 {
-	long cpu = (long)hcpu;
-	int err;
-
-	switch(action) {
-	case CPU_UP_PREPARE:
-	case CPU_UP_PREPARE_FROZEN:
-		err = init_timers_cpu(cpu);
-		if (err < 0)
-			return notifier_from_errno(err);
-		break;
-#ifdef CONFIG_HOTPLUG_CPU
+	switch (action) {
 	case CPU_DEAD:
 	case CPU_DEAD_FROZEN:
-		migrate_timers(cpu);
+		migrate_timers((long)hcpu);
 		break;
-#endif
 	default:
 		break;
 	}
+
 	return NOTIFY_OK;
 }
 
-static struct notifier_block timers_nb = {
-	.notifier_call	= timer_cpu_notify,
-};
+static inline void timer_register_cpu_notifier(void)
+{
+	cpu_notifier(timer_cpu_notify, 0);
+}
+#else
+static inline void timer_register_cpu_notifier(void) { }
+#endif /* CONFIG_HOTPLUG_CPU */
 
+static void __init init_timer_cpu(struct tvec_base *base, int cpu)
+{
+	int j;
 
-void __init init_timers(void)
+	BUG_ON(base != tbase_get_base(base));
+
+	base->cpu = cpu;
+	per_cpu(tvec_bases, cpu) = base;
+	spin_lock_init(&base->lock);
+
+	for (j = 0; j < TVN_SIZE; j++) {
+		INIT_LIST_HEAD(base->tv5.vec + j);
+		INIT_LIST_HEAD(base->tv4.vec + j);
+		INIT_LIST_HEAD(base->tv3.vec + j);
+		INIT_LIST_HEAD(base->tv2.vec + j);
+	}
+	for (j = 0; j < TVR_SIZE; j++)
+		INIT_LIST_HEAD(base->tv1.vec + j);
+
+	base->timer_jiffies = jiffies;
+	base->next_timer = base->timer_jiffies;
+}
+
+static void __init init_timer_cpus(void)
 {
-	int err;
+	struct tvec_base *base;
+	int local_cpu = smp_processor_id();
+	int cpu;
 
+	for_each_possible_cpu(cpu) {
+		if (cpu == local_cpu)
+			base = &boot_tvec_bases;
+#ifdef CONFIG_SMP
+		else
+			base = per_cpu_ptr(&__tvec_bases, cpu);
+#endif
+
+		init_timer_cpu(base, cpu);
+	}
+}
+
+void __init init_timers(void)
+{
 	/* ensure there are enough low bits for flags in timer->base pointer */
 	BUILD_BUG_ON(__alignof__(struct tvec_base) & TIMER_FLAG_MASK);
 
-	err = timer_cpu_notify(&timers_nb, (unsigned long)CPU_UP_PREPARE,
-			       (void *)(long)smp_processor_id());
-	BUG_ON(err != NOTIFY_OK);
-
+	init_timer_cpus();
 	init_timer_stats();
-	register_cpu_notifier(&timers_nb);
+	timer_register_cpu_notifier();
 	open_softirq(TIMER_SOFTIRQ, run_timer_softirq);
 }
 
diff --git a/kernel/time/timer_list.c b/kernel/time/timer_list.c
index 61ed862..e878c2e 100644
--- a/kernel/time/timer_list.c
+++ b/kernel/time/timer_list.c
@@ -16,10 +16,10 @@
 #include <linux/sched.h>
 #include <linux/seq_file.h>
 #include <linux/kallsyms.h>
-#include <linux/tick.h>
 
 #include <asm/uaccess.h>
 
+#include "tick-internal.h"
 
 struct timer_list_iter {
 	int cpu;
@@ -228,9 +228,35 @@ print_tickdevice(struct seq_file *m, struct tick_device *td, int cpu)
 	print_name_offset(m, dev->set_next_event);
 	SEQ_printf(m, "\n");
 
-	SEQ_printf(m, " set_mode:       ");
-	print_name_offset(m, dev->set_mode);
-	SEQ_printf(m, "\n");
+	if (dev->set_mode) {
+		SEQ_printf(m, " set_mode:       ");
+		print_name_offset(m, dev->set_mode);
+		SEQ_printf(m, "\n");
+	} else {
+		if (dev->set_state_shutdown) {
+			SEQ_printf(m, " shutdown: ");
+			print_name_offset(m, dev->set_state_shutdown);
+			SEQ_printf(m, "\n");
+		}
+
+		if (dev->set_state_periodic) {
+			SEQ_printf(m, " periodic: ");
+			print_name_offset(m, dev->set_state_periodic);
+			SEQ_printf(m, "\n");
+		}
+
+		if (dev->set_state_oneshot) {
+			SEQ_printf(m, " oneshot:  ");
+			print_name_offset(m, dev->set_state_oneshot);
+			SEQ_printf(m, "\n");
+		}
+
+		if (dev->tick_resume) {
+			SEQ_printf(m, " resume:   ");
+			print_name_offset(m, dev->tick_resume);
+			SEQ_printf(m, "\n");
+		}
+	}
 
 	SEQ_printf(m, " event_handler:  ");
 	print_name_offset(m, dev->event_handler);
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 45e5cb1..4f22802 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -1059,6 +1059,12 @@ static __init void ftrace_profile_debugfs(struct dentry *d_tracer)
 
 static struct pid * const ftrace_swapper_pid = &init_struct_pid;
 
+#ifdef CONFIG_FUNCTION_GRAPH_TRACER
+static int ftrace_graph_active;
+#else
+# define ftrace_graph_active 0
+#endif
+
 #ifdef CONFIG_DYNAMIC_FTRACE
 
 static struct ftrace_ops *removed_ops;
@@ -2041,8 +2047,12 @@ static int ftrace_check_record(struct dyn_ftrace *rec, int enable, int update)
 		if (!ftrace_rec_count(rec))
 			rec->flags = 0;
 		else
-			/* Just disable the record (keep REGS state) */
-			rec->flags &= ~FTRACE_FL_ENABLED;
+			/*
+			 * Just disable the record, but keep the ops TRAMP
+			 * and REGS states. The _EN flags must be disabled though.
+			 */
+			rec->flags &= ~(FTRACE_FL_ENABLED | FTRACE_FL_TRAMP_EN |
+					FTRACE_FL_REGS_EN);
 	}
 
 	return FTRACE_UPDATE_MAKE_NOP;
@@ -2688,24 +2698,36 @@ static int ftrace_shutdown(struct ftrace_ops *ops, int command)
 
 static void ftrace_startup_sysctl(void)
 {
+	int command;
+
 	if (unlikely(ftrace_disabled))
 		return;
 
 	/* Force update next time */
 	saved_ftrace_func = NULL;
 	/* ftrace_start_up is true if we want ftrace running */
-	if (ftrace_start_up)
-		ftrace_run_update_code(FTRACE_UPDATE_CALLS);
+	if (ftrace_start_up) {
+		command = FTRACE_UPDATE_CALLS;
+		if (ftrace_graph_active)
+			command |= FTRACE_START_FUNC_RET;
+		ftrace_startup_enable(command);
+	}
 }
 
 static void ftrace_shutdown_sysctl(void)
 {
+	int command;
+
 	if (unlikely(ftrace_disabled))
 		return;
 
 	/* ftrace_start_up is true if ftrace is running */
-	if (ftrace_start_up)
-		ftrace_run_update_code(FTRACE_DISABLE_CALLS);
+	if (ftrace_start_up) {
+		command = FTRACE_DISABLE_CALLS;
+		if (ftrace_graph_active)
+			command |= FTRACE_STOP_FUNC_RET;
+		ftrace_run_update_code(command);
+	}
 }
 
 static cycle_t		ftrace_update_time;
@@ -5558,12 +5580,12 @@ ftrace_enable_sysctl(struct ctl_table *table, int write,
 
 	if (ftrace_enabled) {
 
-		ftrace_startup_sysctl();
-
 		/* we are starting ftrace again */
 		if (ftrace_ops_list != &ftrace_list_end)
 			update_ftrace_function();
 
+		ftrace_startup_sysctl();
+
 	} else {
 		/* stopping ftrace calls (just send to ftrace_stub) */
 		ftrace_trace_function = ftrace_stub;
@@ -5590,8 +5612,6 @@ static struct ftrace_ops graph_ops = {
 	ASSIGN_OPS_HASH(graph_ops, &global_ops.local_hash)
 };
 
-static int ftrace_graph_active;
-
 int ftrace_graph_entry_stub(struct ftrace_graph_ent *trace)
 {
 	return 0;
diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index f288493..586ad91 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -159,6 +159,7 @@ struct worker_pool {
 
 	/* see manage_workers() for details on the two manager mutexes */
 	struct mutex		manager_arb;	/* manager arbitration */
+	struct worker		*manager;	/* L: purely informational */
 	struct mutex		attach_mutex;	/* attach/detach exclusion */
 	struct list_head	workers;	/* A: attached workers */
 	struct completion	*detach_completion; /* all workers detached */
@@ -230,7 +231,7 @@ struct wq_device;
  */
 struct workqueue_struct {
 	struct list_head	pwqs;		/* WR: all pwqs of this wq */
-	struct list_head	list;		/* PL: list of all workqueues */
+	struct list_head	list;		/* PR: list of all workqueues */
 
 	struct mutex		mutex;		/* protects this wq */
 	int			work_color;	/* WQ: current work color */
@@ -257,6 +258,13 @@ struct workqueue_struct {
 #endif
 	char			name[WQ_NAME_LEN]; /* I: workqueue name */
 
+	/*
+	 * Destruction of workqueue_struct is sched-RCU protected to allow
+	 * walking the workqueues list without grabbing wq_pool_mutex.
+	 * This is used to dump all workqueues from sysrq.
+	 */
+	struct rcu_head		rcu;
+
 	/* hot fields used during command issue, aligned to cacheline */
 	unsigned int		flags ____cacheline_aligned; /* WQ: WQ_* flags */
 	struct pool_workqueue __percpu *cpu_pwqs; /* I: per-cpu pwqs */
@@ -288,7 +296,7 @@ static struct workqueue_attrs *wq_update_unbound_numa_attrs_buf;
 static DEFINE_MUTEX(wq_pool_mutex);	/* protects pools and workqueues list */
 static DEFINE_SPINLOCK(wq_mayday_lock);	/* protects wq->maydays list */
 
-static LIST_HEAD(workqueues);		/* PL: list of all workqueues */
+static LIST_HEAD(workqueues);		/* PR: list of all workqueues */
 static bool workqueue_freezing;		/* PL: have wqs started freezing? */
 
 /* the per-cpu worker pools */
@@ -324,6 +332,7 @@ EXPORT_SYMBOL_GPL(system_freezable_power_efficient_wq);
 static int worker_thread(void *__worker);
 static void copy_workqueue_attrs(struct workqueue_attrs *to,
 				 const struct workqueue_attrs *from);
+static void workqueue_sysfs_unregister(struct workqueue_struct *wq);
 
 #define CREATE_TRACE_POINTS
 #include <trace/events/workqueue.h>
@@ -1911,9 +1920,11 @@ static bool manage_workers(struct worker *worker)
 	 */
 	if (!mutex_trylock(&pool->manager_arb))
 		return false;
+	pool->manager = worker;
 
 	maybe_create_worker(pool);
 
+	pool->manager = NULL;
 	mutex_unlock(&pool->manager_arb);
 	return true;
 }
@@ -2303,6 +2314,7 @@ repeat:
 struct wq_barrier {
 	struct work_struct	work;
 	struct completion	done;
+	struct task_struct	*task;	/* purely informational */
 };
 
 static void wq_barrier_func(struct work_struct *work)
@@ -2351,6 +2363,7 @@ static void insert_wq_barrier(struct pool_workqueue *pwq,
 	INIT_WORK_ONSTACK(&barr->work, wq_barrier_func);
 	__set_bit(WORK_STRUCT_PENDING_BIT, work_data_bits(&barr->work));
 	init_completion(&barr->done);
+	barr->task = current;
 
 	/*
 	 * If @target is currently being executed, schedule the
@@ -2728,19 +2741,57 @@ bool flush_work(struct work_struct *work)
 }
 EXPORT_SYMBOL_GPL(flush_work);
 
+struct cwt_wait {
+	wait_queue_t		wait;
+	struct work_struct	*work;
+};
+
+static int cwt_wakefn(wait_queue_t *wait, unsigned mode, int sync, void *key)
+{
+	struct cwt_wait *cwait = container_of(wait, struct cwt_wait, wait);
+
+	if (cwait->work != key)
+		return 0;
+	return autoremove_wake_function(wait, mode, sync, key);
+}
+
 static bool __cancel_work_timer(struct work_struct *work, bool is_dwork)
 {
+	static DECLARE_WAIT_QUEUE_HEAD(cancel_waitq);
 	unsigned long flags;
 	int ret;
 
 	do {
 		ret = try_to_grab_pending(work, is_dwork, &flags);
 		/*
-		 * If someone else is canceling, wait for the same event it
-		 * would be waiting for before retrying.
+		 * If someone else is already canceling, wait for it to
+		 * finish.  flush_work() doesn't work for PREEMPT_NONE
+		 * because we may get scheduled between @work's completion
+		 * and the other canceling task resuming and clearing
+		 * CANCELING - flush_work() will return false immediately
+		 * as @work is no longer busy, try_to_grab_pending() will
+		 * return -ENOENT as @work is still being canceled and the
+		 * other canceling task won't be able to clear CANCELING as
+		 * we're hogging the CPU.
+		 *
+		 * Let's wait for completion using a waitqueue.  As this
+		 * may lead to the thundering herd problem, use a custom
+		 * wake function which matches @work along with exclusive
+		 * wait and wakeup.
 		 */
-		if (unlikely(ret == -ENOENT))
-			flush_work(work);
+		if (unlikely(ret == -ENOENT)) {
+			struct cwt_wait cwait;
+
+			init_wait(&cwait.wait);
+			cwait.wait.func = cwt_wakefn;
+			cwait.work = work;
+
+			prepare_to_wait_exclusive(&cancel_waitq, &cwait.wait,
+						  TASK_UNINTERRUPTIBLE);
+			if (work_is_canceling(work))
+				schedule();
+			finish_wait(&cancel_waitq, &cwait.wait);
+		}
 	} while (unlikely(ret < 0));
 
 	/* tell other tasks trying to grab @work to back off */
@@ -2749,6 +2800,16 @@ static bool __cancel_work_timer(struct work_struct *work, bool is_dwork)
 
 	flush_work(work);
 	clear_work_data(work);
+
+	/*
+	 * Paired with prepare_to_wait() above so that either
+	 * waitqueue_active() is visible here or !work_is_canceling() is
+	 * visible there.
+	 */
+	smp_mb();
+	if (waitqueue_active(&cancel_waitq))
+		__wake_up(&cancel_waitq, TASK_NORMAL, 1, work);
+
 	return ret;
 }
 
@@ -2941,323 +3002,6 @@ int execute_in_process_context(work_func_t fn, struct execute_work *ew)
 }
 EXPORT_SYMBOL_GPL(execute_in_process_context);
 
-#ifdef CONFIG_SYSFS
-/*
- * Workqueues with WQ_SYSFS flag set is visible to userland via
- * /sys/bus/workqueue/devices/WQ_NAME.  All visible workqueues have the
- * following attributes.
- *
- *  per_cpu	RO bool	: whether the workqueue is per-cpu or unbound
- *  max_active	RW int	: maximum number of in-flight work items
- *
- * Unbound workqueues have the following extra attributes.
- *
- *  id		RO int	: the associated pool ID
- *  nice	RW int	: nice value of the workers
- *  cpumask	RW mask	: bitmask of allowed CPUs for the workers
- */
-struct wq_device {
-	struct workqueue_struct		*wq;
-	struct device			dev;
-};
-
-static struct workqueue_struct *dev_to_wq(struct device *dev)
-{
-	struct wq_device *wq_dev = container_of(dev, struct wq_device, dev);
-
-	return wq_dev->wq;
-}
-
-static ssize_t per_cpu_show(struct device *dev, struct device_attribute *attr,
-			    char *buf)
-{
-	struct workqueue_struct *wq = dev_to_wq(dev);
-
-	return scnprintf(buf, PAGE_SIZE, "%d\n", (bool)!(wq->flags & WQ_UNBOUND));
-}
-static DEVICE_ATTR_RO(per_cpu);
-
-static ssize_t max_active_show(struct device *dev,
-			       struct device_attribute *attr, char *buf)
-{
-	struct workqueue_struct *wq = dev_to_wq(dev);
-
-	return scnprintf(buf, PAGE_SIZE, "%d\n", wq->saved_max_active);
-}
-
-static ssize_t max_active_store(struct device *dev,
-				struct device_attribute *attr, const char *buf,
-				size_t count)
-{
-	struct workqueue_struct *wq = dev_to_wq(dev);
-	int val;
-
-	if (sscanf(buf, "%d", &val) != 1 || val <= 0)
-		return -EINVAL;
-
-	workqueue_set_max_active(wq, val);
-	return count;
-}
-static DEVICE_ATTR_RW(max_active);
-
-static struct attribute *wq_sysfs_attrs[] = {
-	&dev_attr_per_cpu.attr,
-	&dev_attr_max_active.attr,
-	NULL,
-};
-ATTRIBUTE_GROUPS(wq_sysfs);
-
-static ssize_t wq_pool_ids_show(struct device *dev,
-				struct device_attribute *attr, char *buf)
-{
-	struct workqueue_struct *wq = dev_to_wq(dev);
-	const char *delim = "";
-	int node, written = 0;
-
-	rcu_read_lock_sched();
-	for_each_node(node) {
-		written += scnprintf(buf + written, PAGE_SIZE - written,
-				     "%s%d:%d", delim, node,
-				     unbound_pwq_by_node(wq, node)->pool->id);
-		delim = " ";
-	}
-	written += scnprintf(buf + written, PAGE_SIZE - written, "\n");
-	rcu_read_unlock_sched();
-
-	return written;
-}
-
-static ssize_t wq_nice_show(struct device *dev, struct device_attribute *attr,
-			    char *buf)
-{
-	struct workqueue_struct *wq = dev_to_wq(dev);
-	int written;
-
-	mutex_lock(&wq->mutex);
-	written = scnprintf(buf, PAGE_SIZE, "%d\n", wq->unbound_attrs->nice);
-	mutex_unlock(&wq->mutex);
-
-	return written;
-}
-
-/* prepare workqueue_attrs for sysfs store operations */
-static struct workqueue_attrs *wq_sysfs_prep_attrs(struct workqueue_struct *wq)
-{
-	struct workqueue_attrs *attrs;
-
-	attrs = alloc_workqueue_attrs(GFP_KERNEL);
-	if (!attrs)
-		return NULL;
-
-	mutex_lock(&wq->mutex);
-	copy_workqueue_attrs(attrs, wq->unbound_attrs);
-	mutex_unlock(&wq->mutex);
-	return attrs;
-}
-
-static ssize_t wq_nice_store(struct device *dev, struct device_attribute *attr,
-			     const char *buf, size_t count)
-{
-	struct workqueue_struct *wq = dev_to_wq(dev);
-	struct workqueue_attrs *attrs;
-	int ret;
-
-	attrs = wq_sysfs_prep_attrs(wq);
-	if (!attrs)
-		return -ENOMEM;
-
-	if (sscanf(buf, "%d", &attrs->nice) == 1 &&
-	    attrs->nice >= MIN_NICE && attrs->nice <= MAX_NICE)
-		ret = apply_workqueue_attrs(wq, attrs);
-	else
-		ret = -EINVAL;
-
-	free_workqueue_attrs(attrs);
-	return ret ?: count;
-}
-
-static ssize_t wq_cpumask_show(struct device *dev,
-			       struct device_attribute *attr, char *buf)
-{
-	struct workqueue_struct *wq = dev_to_wq(dev);
-	int written;
-
-	mutex_lock(&wq->mutex);
-	written = scnprintf(buf, PAGE_SIZE, "%*pb\n",
-			    cpumask_pr_args(wq->unbound_attrs->cpumask));
-	mutex_unlock(&wq->mutex);
-	return written;
-}
-
-static ssize_t wq_cpumask_store(struct device *dev,
-				struct device_attribute *attr,
-				const char *buf, size_t count)
-{
-	struct workqueue_struct *wq = dev_to_wq(dev);
-	struct workqueue_attrs *attrs;
-	int ret;
-
-	attrs = wq_sysfs_prep_attrs(wq);
-	if (!attrs)
-		return -ENOMEM;
-
-	ret = cpumask_parse(buf, attrs->cpumask);
-	if (!ret)
-		ret = apply_workqueue_attrs(wq, attrs);
-
-	free_workqueue_attrs(attrs);
-	return ret ?: count;
-}
-
-static ssize_t wq_numa_show(struct device *dev, struct device_attribute *attr,
-			    char *buf)
-{
-	struct workqueue_struct *wq = dev_to_wq(dev);
-	int written;
-
-	mutex_lock(&wq->mutex);
-	written = scnprintf(buf, PAGE_SIZE, "%d\n",
-			    !wq->unbound_attrs->no_numa);
-	mutex_unlock(&wq->mutex);
-
-	return written;
-}
-
-static ssize_t wq_numa_store(struct device *dev, struct device_attribute *attr,
-			     const char *buf, size_t count)
-{
-	struct workqueue_struct *wq = dev_to_wq(dev);
-	struct workqueue_attrs *attrs;
-	int v, ret;
-
-	attrs = wq_sysfs_prep_attrs(wq);
-	if (!attrs)
-		return -ENOMEM;
-
-	ret = -EINVAL;
-	if (sscanf(buf, "%d", &v) == 1) {
-		attrs->no_numa = !v;
-		ret = apply_workqueue_attrs(wq, attrs);
-	}
-
-	free_workqueue_attrs(attrs);
-	return ret ?: count;
-}
-
-static struct device_attribute wq_sysfs_unbound_attrs[] = {
-	__ATTR(pool_ids, 0444, wq_pool_ids_show, NULL),
-	__ATTR(nice, 0644, wq_nice_show, wq_nice_store),
-	__ATTR(cpumask, 0644, wq_cpumask_show, wq_cpumask_store),
-	__ATTR(numa, 0644, wq_numa_show, wq_numa_store),
-	__ATTR_NULL,
-};
-
-static struct bus_type wq_subsys = {
-	.name				= "workqueue",
-	.dev_groups			= wq_sysfs_groups,
-};
-
-static int __init wq_sysfs_init(void)
-{
-	return subsys_virtual_register(&wq_subsys, NULL);
-}
-core_initcall(wq_sysfs_init);
-
-static void wq_device_release(struct device *dev)
-{
-	struct wq_device *wq_dev = container_of(dev, struct wq_device, dev);
-
-	kfree(wq_dev);
-}
-
-/**
- * workqueue_sysfs_register - make a workqueue visible in sysfs
- * @wq: the workqueue to register
- *
- * Expose @wq in sysfs under /sys/bus/workqueue/devices.
- * alloc_workqueue*() automatically calls this function if WQ_SYSFS is set
- * which is the preferred method.
- *
- * Workqueue user should use this function directly iff it wants to apply
- * workqueue_attrs before making the workqueue visible in sysfs; otherwise,
- * apply_workqueue_attrs() may race against userland updating the
- * attributes.
- *
- * Return: 0 on success, -errno on failure.
- */
-int workqueue_sysfs_register(struct workqueue_struct *wq)
-{
-	struct wq_device *wq_dev;
-	int ret;
-
-	/*
-	 * Adjusting max_active or creating new pwqs by applyting
-	 * attributes breaks ordering guarantee.  Disallow exposing ordered
-	 * workqueues.
-	 */
-	if (WARN_ON(wq->flags & __WQ_ORDERED))
-		return -EINVAL;
-
-	wq->wq_dev = wq_dev = kzalloc(sizeof(*wq_dev), GFP_KERNEL);
-	if (!wq_dev)
-		return -ENOMEM;
-
-	wq_dev->wq = wq;
-	wq_dev->dev.bus = &wq_subsys;
-	wq_dev->dev.init_name = wq->name;
-	wq_dev->dev.release = wq_device_release;
-
-	/*
-	 * unbound_attrs are created separately.  Suppress uevent until
-	 * everything is ready.
-	 */
-	dev_set_uevent_suppress(&wq_dev->dev, true);
-
-	ret = device_register(&wq_dev->dev);
-	if (ret) {
-		kfree(wq_dev);
-		wq->wq_dev = NULL;
-		return ret;
-	}
-
-	if (wq->flags & WQ_UNBOUND) {
-		struct device_attribute *attr;
-
-		for (attr = wq_sysfs_unbound_attrs; attr->attr.name; attr++) {
-			ret = device_create_file(&wq_dev->dev, attr);
-			if (ret) {
-				device_unregister(&wq_dev->dev);
-				wq->wq_dev = NULL;
-				return ret;
-			}
-		}
-	}
-
-	dev_set_uevent_suppress(&wq_dev->dev, false);
-	kobject_uevent(&wq_dev->dev.kobj, KOBJ_ADD);
-	return 0;
-}
-
-/**
- * workqueue_sysfs_unregister - undo workqueue_sysfs_register()
- * @wq: the workqueue to unregister
- *
- * If @wq is registered to sysfs by workqueue_sysfs_register(), unregister.
- */
-static void workqueue_sysfs_unregister(struct workqueue_struct *wq)
-{
-	struct wq_device *wq_dev = wq->wq_dev;
-
-	if (!wq->wq_dev)
-		return;
-
-	wq->wq_dev = NULL;
-	device_unregister(&wq_dev->dev);
-}
-#else	/* CONFIG_SYSFS */
-static void workqueue_sysfs_unregister(struct workqueue_struct *wq)	{ }
-#endif	/* CONFIG_SYSFS */
-
 /**
  * free_workqueue_attrs - free a workqueue_attrs
  * @attrs: workqueue_attrs to free
@@ -3376,6 +3120,20 @@ static int init_worker_pool(struct worker_pool *pool)
 	return 0;
 }
 
+static void rcu_free_wq(struct rcu_head *rcu)
+{
+	struct workqueue_struct *wq =
+		container_of(rcu, struct workqueue_struct, rcu);
+
+	if (!(wq->flags & WQ_UNBOUND))
+		free_percpu(wq->cpu_pwqs);
+	else
+		free_workqueue_attrs(wq->unbound_attrs);
+
+	kfree(wq->rescuer);
+	kfree(wq);
+}
+
 static void rcu_free_pool(struct rcu_head *rcu)
 {
 	struct worker_pool *pool = container_of(rcu, struct worker_pool, rcu);
@@ -3553,12 +3311,10 @@ static void pwq_unbound_release_workfn(struct work_struct *work)
 
 	/*
 	 * If we're the last pwq going away, @wq is already dead and no one
-	 * is gonna access it anymore.  Free it.
+	 * is gonna access it anymore.  Schedule RCU free.
 	 */
-	if (is_last) {
-		free_workqueue_attrs(wq->unbound_attrs);
-		kfree(wq);
-	}
+	if (is_last)
+		call_rcu_sched(&wq->rcu, rcu_free_wq);
 }
 
 /**
@@ -4095,7 +3851,7 @@ struct workqueue_struct *__alloc_workqueue_key(const char *fmt,
 		pwq_adjust_max_active(pwq);
 	mutex_unlock(&wq->mutex);
 
-	list_add(&wq->list, &workqueues);
+	list_add_tail_rcu(&wq->list, &workqueues);
 
 	mutex_unlock(&wq_pool_mutex);
 
@@ -4151,24 +3907,20 @@ void destroy_workqueue(struct workqueue_struct *wq)
 	 * flushing is complete in case freeze races us.
 	 */
 	mutex_lock(&wq_pool_mutex);
-	list_del_init(&wq->list);
+	list_del_rcu(&wq->list);
 	mutex_unlock(&wq_pool_mutex);
 
 	workqueue_sysfs_unregister(wq);
 
-	if (wq->rescuer) {
+	if (wq->rescuer)
 		kthread_stop(wq->rescuer->task);
-		kfree(wq->rescuer);
-		wq->rescuer = NULL;
-	}
 
 	if (!(wq->flags & WQ_UNBOUND)) {
 		/*
 		 * The base ref is never dropped on per-cpu pwqs.  Directly
-		 * free the pwqs and wq.
+		 * schedule RCU free.
 		 */
-		free_percpu(wq->cpu_pwqs);
-		kfree(wq);
+		call_rcu_sched(&wq->rcu, rcu_free_wq);
 	} else {
 		/*
 		 * We're the sole accessor of @wq at this point.  Directly
@@ -4389,6 +4141,166 @@ void print_worker_info(const char *log_lvl, struct task_struct *task)
 	}
 }
 
+static void pr_cont_pool_info(struct worker_pool *pool)
+{
+	pr_cont(" cpus=%*pbl", nr_cpumask_bits, pool->attrs->cpumask);
+	if (pool->node != NUMA_NO_NODE)
+		pr_cont(" node=%d", pool->node);
+	pr_cont(" flags=0x%x nice=%d", pool->flags, pool->attrs->nice);
+}
+
+static void pr_cont_work(bool comma, struct work_struct *work)
+{
+	if (work->func == wq_barrier_func) {
+		struct wq_barrier *barr;
+
+		barr = container_of(work, struct wq_barrier, work);
+
+		pr_cont("%s BAR(%d)", comma ? "," : "",
+			task_pid_nr(barr->task));
+	} else {
+		pr_cont("%s %pf", comma ? "," : "", work->func);
+	}
+}
+
+static void show_pwq(struct pool_workqueue *pwq)
+{
+	struct worker_pool *pool = pwq->pool;
+	struct work_struct *work;
+	struct worker *worker;
+	bool has_in_flight = false, has_pending = false;
+	int bkt;
+
+	pr_info("  pwq %d:", pool->id);
+	pr_cont_pool_info(pool);
+
+	pr_cont(" active=%d/%d%s\n", pwq->nr_active, pwq->max_active,
+		!list_empty(&pwq->mayday_node) ? " MAYDAY" : "");
+
+	hash_for_each(pool->busy_hash, bkt, worker, hentry) {
+		if (worker->current_pwq == pwq) {
+			has_in_flight = true;
+			break;
+		}
+	}
+	if (has_in_flight) {
+		bool comma = false;
+
+		pr_info("    in-flight:");
+		hash_for_each(pool->busy_hash, bkt, worker, hentry) {
+			if (worker->current_pwq != pwq)
+				continue;
+
+			pr_cont("%s %d%s:%pf", comma ? "," : "",
+				task_pid_nr(worker->task),
+				worker == pwq->wq->rescuer ? "(RESCUER)" : "",
+				worker->current_func);
+			list_for_each_entry(work, &worker->scheduled, entry)
+				pr_cont_work(false, work);
+			comma = true;
+		}
+		pr_cont("\n");
+	}
+
+	list_for_each_entry(work, &pool->worklist, entry) {
+		if (get_work_pwq(work) == pwq) {
+			has_pending = true;
+			break;
+		}
+	}
+	if (has_pending) {
+		bool comma = false;
+
+		pr_info("    pending:");
+		list_for_each_entry(work, &pool->worklist, entry) {
+			if (get_work_pwq(work) != pwq)
+				continue;
+
+			pr_cont_work(comma, work);
+			comma = !(*work_data_bits(work) & WORK_STRUCT_LINKED);
+		}
+		pr_cont("\n");
+	}
+
+	if (!list_empty(&pwq->delayed_works)) {
+		bool comma = false;
+
+		pr_info("    delayed:");
+		list_for_each_entry(work, &pwq->delayed_works, entry) {
+			pr_cont_work(comma, work);
+			comma = !(*work_data_bits(work) & WORK_STRUCT_LINKED);
+		}
+		pr_cont("\n");
+	}
+}
+
+/**
+ * show_workqueue_state - dump workqueue state
+ *
+ * Called from a sysrq handler and prints out all busy workqueues and
+ * pools.
+ */
+void show_workqueue_state(void)
+{
+	struct workqueue_struct *wq;
+	struct worker_pool *pool;
+	unsigned long flags;
+	int pi;
+
+	rcu_read_lock_sched();
+
+	pr_info("Showing busy workqueues and worker pools:\n");
+
+	list_for_each_entry_rcu(wq, &workqueues, list) {
+		struct pool_workqueue *pwq;
+		bool idle = true;
+
+		for_each_pwq(pwq, wq) {
+			if (pwq->nr_active || !list_empty(&pwq->delayed_works)) {
+				idle = false;
+				break;
+			}
+		}
+		if (idle)
+			continue;
+
+		pr_info("workqueue %s: flags=0x%x\n", wq->name, wq->flags);
+
+		for_each_pwq(pwq, wq) {
+			spin_lock_irqsave(&pwq->pool->lock, flags);
+			if (pwq->nr_active || !list_empty(&pwq->delayed_works))
+				show_pwq(pwq);
+			spin_unlock_irqrestore(&pwq->pool->lock, flags);
+		}
+	}
+
+	for_each_pool(pool, pi) {
+		struct worker *worker;
+		bool first = true;
+
+		spin_lock_irqsave(&pool->lock, flags);
+		if (pool->nr_workers == pool->nr_idle)
+			goto next_pool;
+
+		pr_info("pool %d:", pool->id);
+		pr_cont_pool_info(pool);
+		pr_cont(" workers=%d", pool->nr_workers);
+		if (pool->manager)
+			pr_cont(" manager: %d",
+				task_pid_nr(pool->manager->task));
+		list_for_each_entry(worker, &pool->idle_list, entry) {
+			pr_cont(" %s%d", first ? "idle: " : "",
+				task_pid_nr(worker->task));
+			first = false;
+		}
+		pr_cont("\n");
+	next_pool:
+		spin_unlock_irqrestore(&pool->lock, flags);
+	}
+
+	rcu_read_unlock_sched();
+}
+
 /*
  * CPU hotplug.
  *
@@ -4786,6 +4698,323 @@ out_unlock:
 }
 #endif /* CONFIG_FREEZER */
 
+#ifdef CONFIG_SYSFS
+/*
+ * Workqueues with WQ_SYSFS flag set is visible to userland via
+ * /sys/bus/workqueue/devices/WQ_NAME.  All visible workqueues have the
+ * following attributes.
+ *
+ *  per_cpu	RO bool	: whether the workqueue is per-cpu or unbound
+ *  max_active	RW int	: maximum number of in-flight work items
+ *
+ * Unbound workqueues have the following extra attributes.
+ *
+ *  id		RO int	: the associated pool ID
+ *  nice	RW int	: nice value of the workers
+ *  cpumask	RW mask	: bitmask of allowed CPUs for the workers
+ */
+struct wq_device {
+	struct workqueue_struct		*wq;
+	struct device			dev;
+};
+
+static struct workqueue_struct *dev_to_wq(struct device *dev)
+{
+	struct wq_device *wq_dev = container_of(dev, struct wq_device, dev);
+
+	return wq_dev->wq;
+}
+
+static ssize_t per_cpu_show(struct device *dev, struct device_attribute *attr,
+			    char *buf)
+{
+	struct workqueue_struct *wq = dev_to_wq(dev);
+
+	return scnprintf(buf, PAGE_SIZE, "%d\n", (bool)!(wq->flags & WQ_UNBOUND));
+}
+static DEVICE_ATTR_RO(per_cpu);
+
+static ssize_t max_active_show(struct device *dev,
+			       struct device_attribute *attr, char *buf)
+{
+	struct workqueue_struct *wq = dev_to_wq(dev);
+
+	return scnprintf(buf, PAGE_SIZE, "%d\n", wq->saved_max_active);
+}
+
+static ssize_t max_active_store(struct device *dev,
+				struct device_attribute *attr, const char *buf,
+				size_t count)
+{
+	struct workqueue_struct *wq = dev_to_wq(dev);
+	int val;
+
+	if (sscanf(buf, "%d", &val) != 1 || val <= 0)
+		return -EINVAL;
+
+	workqueue_set_max_active(wq, val);
+	return count;
+}
+static DEVICE_ATTR_RW(max_active);
+
+static struct attribute *wq_sysfs_attrs[] = {
+	&dev_attr_per_cpu.attr,
+	&dev_attr_max_active.attr,
+	NULL,
+};
+ATTRIBUTE_GROUPS(wq_sysfs);
+
+static ssize_t wq_pool_ids_show(struct device *dev,
+				struct device_attribute *attr, char *buf)
+{
+	struct workqueue_struct *wq = dev_to_wq(dev);
+	const char *delim = "";
+	int node, written = 0;
+
+	rcu_read_lock_sched();
+	for_each_node(node) {
+		written += scnprintf(buf + written, PAGE_SIZE - written,
+				     "%s%d:%d", delim, node,
+				     unbound_pwq_by_node(wq, node)->pool->id);
+		delim = " ";
+	}
+	written += scnprintf(buf + written, PAGE_SIZE - written, "\n");
+	rcu_read_unlock_sched();
+
+	return written;
+}
+
+static ssize_t wq_nice_show(struct device *dev, struct device_attribute *attr,
+			    char *buf)
+{
+	struct workqueue_struct *wq = dev_to_wq(dev);
+	int written;
+
+	mutex_lock(&wq->mutex);
+	written = scnprintf(buf, PAGE_SIZE, "%d\n", wq->unbound_attrs->nice);
+	mutex_unlock(&wq->mutex);
+
+	return written;
+}
+
+/* prepare workqueue_attrs for sysfs store operations */
+static struct workqueue_attrs *wq_sysfs_prep_attrs(struct workqueue_struct *wq)
+{
+	struct workqueue_attrs *attrs;
+
+	attrs = alloc_workqueue_attrs(GFP_KERNEL);
+	if (!attrs)
+		return NULL;
+
+	mutex_lock(&wq->mutex);
+	copy_workqueue_attrs(attrs, wq->unbound_attrs);
+	mutex_unlock(&wq->mutex);
+	return attrs;
+}
+
+static ssize_t wq_nice_store(struct device *dev, struct device_attribute *attr,
+			     const char *buf, size_t count)
+{
+	struct workqueue_struct *wq = dev_to_wq(dev);
+	struct workqueue_attrs *attrs;
+	int ret;
+
+	attrs = wq_sysfs_prep_attrs(wq);
+	if (!attrs)
+		return -ENOMEM;
+
+	if (sscanf(buf, "%d", &attrs->nice) == 1 &&
+	    attrs->nice >= MIN_NICE && attrs->nice <= MAX_NICE)
+		ret = apply_workqueue_attrs(wq, attrs);
+	else
+		ret = -EINVAL;
+
+	free_workqueue_attrs(attrs);
+	return ret ?: count;
+}
+
+static ssize_t wq_cpumask_show(struct device *dev,
+			       struct device_attribute *attr, char *buf)
+{
+	struct workqueue_struct *wq = dev_to_wq(dev);
+	int written;
+
+	mutex_lock(&wq->mutex);
+	written = scnprintf(buf, PAGE_SIZE, "%*pb\n",
+			    cpumask_pr_args(wq->unbound_attrs->cpumask));
+	mutex_unlock(&wq->mutex);
+	return written;
+}
+
+static ssize_t wq_cpumask_store(struct device *dev,
+				struct device_attribute *attr,
+				const char *buf, size_t count)
+{
+	struct workqueue_struct *wq = dev_to_wq(dev);
+	struct workqueue_attrs *attrs;
+	int ret;
+
+	attrs = wq_sysfs_prep_attrs(wq);
+	if (!attrs)
+		return -ENOMEM;
+
+	ret = cpumask_parse(buf, attrs->cpumask);
+	if (!ret)
+		ret = apply_workqueue_attrs(wq, attrs);
+
+	free_workqueue_attrs(attrs);
+	return ret ?: count;
+}
+
+static ssize_t wq_numa_show(struct device *dev, struct device_attribute *attr,
+			    char *buf)
+{
+	struct workqueue_struct *wq = dev_to_wq(dev);
+	int written;
+
+	mutex_lock(&wq->mutex);
+	written = scnprintf(buf, PAGE_SIZE, "%d\n",
+			    !wq->unbound_attrs->no_numa);
+	mutex_unlock(&wq->mutex);
+
+	return written;
+}
+
+static ssize_t wq_numa_store(struct device *dev, struct device_attribute *attr,
+			     const char *buf, size_t count)
+{
+	struct workqueue_struct *wq = dev_to_wq(dev);
+	struct workqueue_attrs *attrs;
+	int v, ret;
+
+	attrs = wq_sysfs_prep_attrs(wq);
+	if (!attrs)
+		return -ENOMEM;
+
+	ret = -EINVAL;
+	if (sscanf(buf, "%d", &v) == 1) {
+		attrs->no_numa = !v;
+		ret = apply_workqueue_attrs(wq, attrs);
+	}
+
+	free_workqueue_attrs(attrs);
+	return ret ?: count;
+}
+
+static struct device_attribute wq_sysfs_unbound_attrs[] = {
+	__ATTR(pool_ids, 0444, wq_pool_ids_show, NULL),
+	__ATTR(nice, 0644, wq_nice_show, wq_nice_store),
+	__ATTR(cpumask, 0644, wq_cpumask_show, wq_cpumask_store),
+	__ATTR(numa, 0644, wq_numa_show, wq_numa_store),
+	__ATTR_NULL,
+};
+
+static struct bus_type wq_subsys = {
+	.name				= "workqueue",
+	.dev_groups			= wq_sysfs_groups,
+};
+
+static int __init wq_sysfs_init(void)
+{
+	return subsys_virtual_register(&wq_subsys, NULL);
+}
+core_initcall(wq_sysfs_init);
+
+static void wq_device_release(struct device *dev)
+{
+	struct wq_device *wq_dev = container_of(dev, struct wq_device, dev);
+
+	kfree(wq_dev);
+}
+
+/**
+ * workqueue_sysfs_register - make a workqueue visible in sysfs
+ * @wq: the workqueue to register
+ *
+ * Expose @wq in sysfs under /sys/bus/workqueue/devices.
+ * alloc_workqueue*() automatically calls this function if WQ_SYSFS is set
+ * which is the preferred method.
+ *
+ * Workqueue user should use this function directly iff it wants to apply
+ * workqueue_attrs before making the workqueue visible in sysfs; otherwise,
+ * apply_workqueue_attrs() may race against userland updating the
+ * attributes.
+ *
+ * Return: 0 on success, -errno on failure.
+ */
+int workqueue_sysfs_register(struct workqueue_struct *wq)
+{
+	struct wq_device *wq_dev;
+	int ret;
+
+	/*
+	 * Adjusting max_active or creating new pwqs by applyting
+	 * attributes breaks ordering guarantee.  Disallow exposing ordered
+	 * workqueues.
+	 */
+	if (WARN_ON(wq->flags & __WQ_ORDERED))
+		return -EINVAL;
+
+	wq->wq_dev = wq_dev = kzalloc(sizeof(*wq_dev), GFP_KERNEL);
+	if (!wq_dev)
+		return -ENOMEM;
+
+	wq_dev->wq = wq;
+	wq_dev->dev.bus = &wq_subsys;
+	wq_dev->dev.init_name = wq->name;
+	wq_dev->dev.release = wq_device_release;
+
+	/*
+	 * unbound_attrs are created separately.  Suppress uevent until
+	 * everything is ready.
+	 */
+	dev_set_uevent_suppress(&wq_dev->dev, true);
+
+	ret = device_register(&wq_dev->dev);
+	if (ret) {
+		kfree(wq_dev);
+		wq->wq_dev = NULL;
+		return ret;
+	}
+
+	if (wq->flags & WQ_UNBOUND) {
+		struct device_attribute *attr;
+
+		for (attr = wq_sysfs_unbound_attrs; attr->attr.name; attr++) {
+			ret = device_create_file(&wq_dev->dev, attr);
+			if (ret) {
+				device_unregister(&wq_dev->dev);
+				wq->wq_dev = NULL;
+				return ret;
+			}
+		}
+	}
+
+	dev_set_uevent_suppress(&wq_dev->dev, false);
+	kobject_uevent(&wq_dev->dev.kobj, KOBJ_ADD);
+	return 0;
+}
+
+/**
+ * workqueue_sysfs_unregister - undo workqueue_sysfs_register()
+ * @wq: the workqueue to unregister
+ *
+ * If @wq is registered to sysfs by workqueue_sysfs_register(), unregister.
+ */
+static void workqueue_sysfs_unregister(struct workqueue_struct *wq)
+{
+	struct wq_device *wq_dev = wq->wq_dev;
+
+	if (!wq->wq_dev)
+		return;
+
+	wq->wq_dev = NULL;
+	device_unregister(&wq_dev->dev);
+}
+#else	/* CONFIG_SYSFS */
+static void workqueue_sysfs_unregister(struct workqueue_struct *wq)	{ }
+#endif	/* CONFIG_SYSFS */
+
 static void __init wq_numa_init(void)
 {
 	cpumask_var_t *tbl;
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index c5cefb3..36b6fa8 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -865,6 +865,19 @@ config SCHED_STACK_END_CHECK
 	  data corruption or a sporadic crash at a later stage once the region
 	  is examined. The runtime overhead introduced is minimal.
 
+config DEBUG_TIMEKEEPING
+	bool "Enable extra timekeeping sanity checking"
+	help
+	  This option will enable additional timekeeping sanity checks
+	  which may be helpful when diagnosing issues where timekeeping
+	  problems are suspected.
+
+	  This may include checks in the timekeeping hotpaths, so this
+	  option may have a (very small) performance impact to some
+	  workloads.
+
+	  If unsure, say N.
+
 config TIMER_STATS
 	bool "Collect kernel timers statistics"
 	depends on DEBUG_KERNEL && PROC_FS
diff --git a/lib/Makefile b/lib/Makefile
index 87eb3bf..58f74d2 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -24,7 +24,7 @@ obj-y	+= lockref.o
 
 obj-y += bcd.o div64.o sort.o parser.o halfmd4.o debug_locks.o random32.o \
 	 bust_spinlocks.o kasprintf.o bitmap.o scatterlist.o \
-	 gcd.o lcm.o list_sort.o uuid.o flex_array.o clz_ctz.o \
+	 gcd.o lcm.o list_sort.o uuid.o flex_array.o iov_iter.o clz_ctz.o \
 	 bsearch.o find_last_bit.o find_next_bit.o llist.o memweight.o kfifo.o \
 	 percpu-refcount.o percpu_ida.o rhashtable.o reciprocal_div.o
 obj-y += string_helpers.o
diff --git a/mm/iov_iter.c b/lib/iov_iter.c
index 8277320..9d96e283 100644
--- a/mm/iov_iter.c
+++ b/lib/iov_iter.c
@@ -751,3 +751,18 @@ int iov_iter_npages(const struct iov_iter *i, int maxpages)
 	return npages;
 }
 EXPORT_SYMBOL(iov_iter_npages);
+
+const void *dup_iter(struct iov_iter *new, struct iov_iter *old, gfp_t flags)
+{
+	*new = *old;
+	if (new->type & ITER_BVEC)
+		return new->bvec = kmemdup(new->bvec,
+				    new->nr_segs * sizeof(struct bio_vec),
+				    flags);
+	else
+		/* iovec and kvec have identical layout */
+		return new->iov = kmemdup(new->iov,
+				   new->nr_segs * sizeof(struct iovec),
+				   flags);
+}
+EXPORT_SYMBOL(dup_iter);
diff --git a/lib/kobject.c b/lib/kobject.c
index 03d4ab3..3b841b9 100644
--- a/lib/kobject.c
+++ b/lib/kobject.c
@@ -576,8 +576,13 @@ void kobject_del(struct kobject *kobj)
  */
 struct kobject *kobject_get(struct kobject *kobj)
 {
-	if (kobj)
+	if (kobj) {
+		if (!kobj->state_initialized)
+			WARN(1, KERN_WARNING "kobject: '%s' (%p): is not "
+			       "initialized, yet kobject_get() is being "
+			       "called.\n", kobject_name(kobj), kobj);
 		kref_get(&kobj->kref);
+	}
 	return kobj;
 }
 
diff --git a/lib/lcm.c b/lib/lcm.c
index e97dbd5..03d7fcb 100644
--- a/lib/lcm.c
+++ b/lib/lcm.c
@@ -12,3 +12,14 @@ unsigned long lcm(unsigned long a, unsigned long b)
 		return 0;
 }
 EXPORT_SYMBOL_GPL(lcm);
+
+unsigned long lcm_not_zero(unsigned long a, unsigned long b)
+{
+	unsigned long l = lcm(a, b);
+
+	if (l)
+		return l;
+
+	return (b ? : a);
+}
+EXPORT_SYMBOL_GPL(lcm_not_zero);
diff --git a/lib/lockref.c b/lib/lockref.c
index ecb9a66..494994b 100644
--- a/lib/lockref.c
+++ b/lib/lockref.c
@@ -18,7 +18,7 @@
 #define CMPXCHG_LOOP(CODE, SUCCESS) do {					\
 	struct lockref old;							\
 	BUILD_BUG_ON(sizeof(old) != 8);						\
-	old.lock_count = ACCESS_ONCE(lockref->lock_count);			\
+	old.lock_count = READ_ONCE(lockref->lock_count);			\
 	while (likely(arch_spin_value_unlocked(old.lock.rlock.raw_lock))) {  	\
 		struct lockref new = old, prev = old;				\
 		CODE								\
diff --git a/lib/lz4/lz4_decompress.c b/lib/lz4/lz4_decompress.c
index 7a85967..26cc602 100644
--- a/lib/lz4/lz4_decompress.c
+++ b/lib/lz4/lz4_decompress.c
@@ -47,6 +47,11 @@
 
 #include "lz4defs.h"
 
+static const int dec32table[] = {0, 3, 2, 3, 0, 0, 0, 0};
+#if LZ4_ARCH64
+static const int dec64table[] = {0, 0, 0, -1, 0, 1, 2, 3};
+#endif
+
 static int lz4_uncompress(const char *source, char *dest, int osize)
 {
 	const BYTE *ip = (const BYTE *) source;
@@ -56,10 +61,6 @@ static int lz4_uncompress(const char *source, char *dest, int osize)
 	BYTE *cpy;
 	unsigned token;
 	size_t length;
-	size_t dec32table[] = {0, 3, 2, 3, 0, 0, 0, 0};
-#if LZ4_ARCH64
-	size_t dec64table[] = {0, 0, 0, -1, 0, 1, 2, 3};
-#endif
 
 	while (1) {
 
@@ -116,7 +117,7 @@ static int lz4_uncompress(const char *source, char *dest, int osize)
 		/* copy repeated sequence */
 		if (unlikely((op - ref) < STEPSIZE)) {
 #if LZ4_ARCH64
-			size_t dec64 = dec64table[op - ref];
+			int dec64 = dec64table[op - ref];
 #else
 			const int dec64 = 0;
 #endif
@@ -139,6 +140,9 @@ static int lz4_uncompress(const char *source, char *dest, int osize)
 			/* Error: request to write beyond destination buffer */
 			if (cpy > oend)
 				goto _output_error;
+			if ((ref + COPYLENGTH) > oend ||
+					(op + COPYLENGTH) > oend)
+				goto _output_error;
 			LZ4_SECURECOPY(ref, op, (oend - COPYLENGTH));
 			while (op < cpy)
 				*op++ = *ref++;
@@ -174,11 +178,6 @@ static int lz4_uncompress_unknownoutputsize(const char *source, char *dest,
 	BYTE * const oend = op + maxoutputsize;
 	BYTE *cpy;
 
-	size_t dec32table[] = {0, 3, 2, 3, 0, 0, 0, 0};
-#if LZ4_ARCH64
-	size_t dec64table[] = {0, 0, 0, -1, 0, 1, 2, 3};
-#endif
-
 	/* Main Loop */
 	while (ip < iend) {
 
@@ -246,7 +245,7 @@ static int lz4_uncompress_unknownoutputsize(const char *source, char *dest,
 		/* copy repeated sequence */
 		if (unlikely((op - ref) < STEPSIZE)) {
 #if LZ4_ARCH64
-			size_t dec64 = dec64table[op - ref];
+			int dec64 = dec64table[op - ref];
 #else
 			const int dec64 = 0;
 #endif
diff --git a/lib/nlattr.c b/lib/nlattr.c
index 76a1b59..f5907d2 100644
--- a/lib/nlattr.c
+++ b/lib/nlattr.c
@@ -279,6 +279,8 @@ int nla_memcpy(void *dest, const struct nlattr *src, int count)
 	int minlen = min_t(int, count, nla_len(src));
 
 	memcpy(dest, nla_data(src), minlen);
+	if (count > minlen)
+		memset(dest + minlen, 0, count - minlen);
 
 	return minlen;
 }
diff --git a/lib/rhashtable.c b/lib/rhashtable.c
index 9cc4c4a..b5344ef 100644
--- a/lib/rhashtable.c
+++ b/lib/rhashtable.c
@@ -17,6 +17,7 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/log2.h>
+#include <linux/sched.h>
 #include <linux/slab.h>
 #include <linux/vmalloc.h>
 #include <linux/mm.h>
@@ -217,15 +218,15 @@ static void bucket_table_free(const struct bucket_table *tbl)
 static struct bucket_table *bucket_table_alloc(struct rhashtable *ht,
 					       size_t nbuckets)
 {
-	struct bucket_table *tbl;
+	struct bucket_table *tbl = NULL;
 	size_t size;
 	int i;
 
 	size = sizeof(*tbl) + nbuckets * sizeof(tbl->buckets[0]);
-	tbl = kzalloc(size, GFP_KERNEL | __GFP_NOWARN);
+	if (size <= (PAGE_SIZE << PAGE_ALLOC_COSTLY_ORDER))
+		tbl = kzalloc(size, GFP_KERNEL | __GFP_NOWARN | __GFP_NORETRY);
 	if (tbl == NULL)
 		tbl = vzalloc(size);
-
 	if (tbl == NULL)
 		return NULL;
 
@@ -247,26 +248,24 @@ static struct bucket_table *bucket_table_alloc(struct rhashtable *ht,
  * @ht:		hash table
  * @new_size:	new table size
  */
-bool rht_grow_above_75(const struct rhashtable *ht, size_t new_size)
+static bool rht_grow_above_75(const struct rhashtable *ht, size_t new_size)
 {
 	/* Expand table when exceeding 75% load */
 	return atomic_read(&ht->nelems) > (new_size / 4 * 3) &&
-	       (ht->p.max_shift && atomic_read(&ht->shift) < ht->p.max_shift);
+	       (!ht->p.max_shift || atomic_read(&ht->shift) < ht->p.max_shift);
 }
-EXPORT_SYMBOL_GPL(rht_grow_above_75);
 
 /**
  * rht_shrink_below_30 - returns true if nelems < 0.3 * table-size
  * @ht:		hash table
  * @new_size:	new table size
  */
-bool rht_shrink_below_30(const struct rhashtable *ht, size_t new_size)
+static bool rht_shrink_below_30(const struct rhashtable *ht, size_t new_size)
 {
 	/* Shrink table beneath 30% load */
 	return atomic_read(&ht->nelems) < (new_size * 3 / 10) &&
 	       (atomic_read(&ht->shift) > ht->p.min_shift);
 }
-EXPORT_SYMBOL_GPL(rht_shrink_below_30);
 
 static void lock_buckets(struct bucket_table *new_tbl,
 			 struct bucket_table *old_tbl, unsigned int hash)
@@ -414,6 +413,7 @@ int rhashtable_expand(struct rhashtable *ht)
 			}
 		}
 		unlock_buckets(new_tbl, old_tbl, new_hash);
+		cond_resched();
 	}
 
 	/* Unzip interleaved hash chains */
@@ -437,6 +437,7 @@ int rhashtable_expand(struct rhashtable *ht)
 				complete = false;
 
 			unlock_buckets(new_tbl, old_tbl, old_hash);
+			cond_resched();
 		}
 	}
 
@@ -495,6 +496,7 @@ int rhashtable_shrink(struct rhashtable *ht)
 				   tbl->buckets[new_hash + new_tbl->size]);
 
 		unlock_buckets(new_tbl, tbl, new_hash);
+		cond_resched();
 	}
 
 	/* Publish the new, valid hash table */
@@ -528,31 +530,19 @@ static void rht_deferred_worker(struct work_struct *work)
 	list_for_each_entry(walker, &ht->walkers, list)
 		walker->resize = true;
 
-	if (ht->p.grow_decision && ht->p.grow_decision(ht, tbl->size))
+	if (rht_grow_above_75(ht, tbl->size))
 		rhashtable_expand(ht);
-	else if (ht->p.shrink_decision && ht->p.shrink_decision(ht, tbl->size))
+	else if (rht_shrink_below_30(ht, tbl->size))
 		rhashtable_shrink(ht);
-
 unlock:
 	mutex_unlock(&ht->mutex);
 }
 
-static void rhashtable_wakeup_worker(struct rhashtable *ht)
-{
-	struct bucket_table *tbl = rht_dereference_rcu(ht->tbl, ht);
-	struct bucket_table *new_tbl = rht_dereference_rcu(ht->future_tbl, ht);
-	size_t size = tbl->size;
-
-	/* Only adjust the table if no resizing is currently in progress. */
-	if (tbl == new_tbl &&
-	    ((ht->p.grow_decision && ht->p.grow_decision(ht, size)) ||
-	     (ht->p.shrink_decision && ht->p.shrink_decision(ht, size))))
-		schedule_work(&ht->run_work);
-}
-
 static void __rhashtable_insert(struct rhashtable *ht, struct rhash_head *obj,
-				struct bucket_table *tbl, u32 hash)
+				struct bucket_table *tbl,
+				const struct bucket_table *old_tbl, u32 hash)
 {
+	bool no_resize_running = tbl == old_tbl;
 	struct rhash_head *head;
 
 	hash = rht_bucket_index(tbl, hash);
@@ -568,8 +558,8 @@ static void __rhashtable_insert(struct rhashtable *ht, struct rhash_head *obj,
 	rcu_assign_pointer(tbl->buckets[hash], obj);
 
 	atomic_inc(&ht->nelems);
-
-	rhashtable_wakeup_worker(ht);
+	if (no_resize_running && rht_grow_above_75(ht, tbl->size))
+		schedule_work(&ht->run_work);
 }
 
 /**
@@ -599,7 +589,7 @@ void rhashtable_insert(struct rhashtable *ht, struct rhash_head *obj)
 	hash = obj_raw_hashfn(ht, rht_obj(ht, obj));
 
 	lock_buckets(tbl, old_tbl, hash);
-	__rhashtable_insert(ht, obj, tbl, hash);
+	__rhashtable_insert(ht, obj, tbl, old_tbl, hash);
 	unlock_buckets(tbl, old_tbl, hash);
 
 	rcu_read_unlock();
@@ -681,8 +671,11 @@ found:
 	unlock_buckets(new_tbl, old_tbl, new_hash);
 
 	if (ret) {
+		bool no_resize_running = new_tbl == old_tbl;
+
 		atomic_dec(&ht->nelems);
-		rhashtable_wakeup_worker(ht);
+		if (no_resize_running && rht_shrink_below_30(ht, new_tbl->size))
+			schedule_work(&ht->run_work);
 	}
 
 	rcu_read_unlock();
@@ -852,7 +845,7 @@ bool rhashtable_lookup_compare_insert(struct rhashtable *ht,
 		goto exit;
 	}
 
-	__rhashtable_insert(ht, obj, new_tbl, new_hash);
+	__rhashtable_insert(ht, obj, new_tbl, old_tbl, new_hash);
 
 exit:
 	unlock_buckets(new_tbl, old_tbl, new_hash);
@@ -894,6 +887,9 @@ int rhashtable_walk_init(struct rhashtable *ht, struct rhashtable_iter *iter)
 	if (!iter->walker)
 		return -ENOMEM;
 
+	INIT_LIST_HEAD(&iter->walker->list);
+	iter->walker->resize = false;
+
 	mutex_lock(&ht->mutex);
 	list_add(&iter->walker->list, &ht->walkers);
 	mutex_unlock(&ht->mutex);
@@ -1111,8 +1107,7 @@ int rhashtable_init(struct rhashtable *ht, struct rhashtable_params *params)
 	if (!ht->p.hash_rnd)
 		get_random_bytes(&ht->p.hash_rnd, sizeof(ht->p.hash_rnd));
 
-	if (ht->p.grow_decision || ht->p.shrink_decision)
-		INIT_WORK(&ht->run_work, rht_deferred_worker);
+	INIT_WORK(&ht->run_work, rht_deferred_worker);
 
 	return 0;
 }
@@ -1130,8 +1125,7 @@ void rhashtable_destroy(struct rhashtable *ht)
 {
 	ht->being_destroyed = true;
 
-	if (ht->p.grow_decision || ht->p.shrink_decision)
-		cancel_work_sync(&ht->run_work);
+	cancel_work_sync(&ht->run_work);
 
 	mutex_lock(&ht->mutex);
 	bucket_table_free(rht_dereference(ht->tbl, ht));
diff --git a/lib/seq_buf.c b/lib/seq_buf.c
index 88c0854..5c94e10 100644
--- a/lib/seq_buf.c
+++ b/lib/seq_buf.c
@@ -61,7 +61,7 @@ int seq_buf_vprintf(struct seq_buf *s, const char *fmt, va_list args)
 
 	if (s->len < s->size) {
 		len = vsnprintf(s->buffer + s->len, s->size - s->len, fmt, args);
-		if (seq_buf_can_fit(s, len)) {
+		if (s->len + len < s->size) {
 			s->len += len;
 			return 0;
 		}
@@ -118,7 +118,7 @@ int seq_buf_bprintf(struct seq_buf *s, const char *fmt, const u32 *binary)
 
 	if (s->len < s->size) {
 		ret = bstr_printf(s->buffer + s->len, len, fmt, binary);
-		if (seq_buf_can_fit(s, ret)) {
+		if (s->len + ret < s->size) {
 			s->len += ret;
 			return 0;
 		}
diff --git a/lib/test_rhashtable.c b/lib/test_rhashtable.c
index 1dfeba7..67c7593 100644
--- a/lib/test_rhashtable.c
+++ b/lib/test_rhashtable.c
@@ -191,18 +191,18 @@ error:
 	return err;
 }
 
+static struct rhashtable ht;
+
 static int __init test_rht_init(void)
 {
-	struct rhashtable ht;
 	struct rhashtable_params params = {
 		.nelem_hint = TEST_HT_SIZE,
 		.head_offset = offsetof(struct test_obj, node),
 		.key_offset = offsetof(struct test_obj, value),
 		.key_len = sizeof(int),
 		.hashfn = jhash,
+		.max_shift = 1, /* we expand/shrink manually here */
 		.nulls_base = (3U << RHT_BASE_SHIFT),
-		.grow_decision = rht_grow_above_75,
-		.shrink_decision = rht_shrink_below_30,
 	};
 	int err;
 
@@ -222,6 +222,11 @@ static int __init test_rht_init(void)
 	return err;
 }
 
+static void __exit test_rht_exit(void)
+{
+}
+
 module_init(test_rht_init);
+module_exit(test_rht_exit);
 
 MODULE_LICENSE("GPL v2");
diff --git a/mm/Makefile b/mm/Makefile
index 3c1caa2..15dbe99 100644
--- a/mm/Makefile
+++ b/mm/Makefile
@@ -21,7 +21,7 @@ obj-y			:= filemap.o mempool.o oom_kill.o \
 			   mm_init.o mmu_context.o percpu.o slab_common.o \
 			   compaction.o vmacache.o \
 			   interval_tree.o list_lru.o workingset.o \
-			   iov_iter.o debug.o $(mmu-y)
+			   debug.o $(mmu-y)
 
 obj-y += init-mm.o
 
diff --git a/mm/cma.c b/mm/cma.c
index 75016fd..68ecb7a 100644
--- a/mm/cma.c
+++ b/mm/cma.c
@@ -64,15 +64,17 @@ static unsigned long cma_bitmap_aligned_mask(struct cma *cma, int align_order)
 	return (1UL << (align_order - cma->order_per_bit)) - 1;
 }
 
+/*
+ * Find a PFN aligned to the specified order and return an offset represented in
+ * order_per_bits.
+ */
 static unsigned long cma_bitmap_aligned_offset(struct cma *cma, int align_order)
 {
-	unsigned int alignment;
-
 	if (align_order <= cma->order_per_bit)
 		return 0;
-	alignment = 1UL << (align_order - cma->order_per_bit);
-	return ALIGN(cma->base_pfn, alignment) -
-		(cma->base_pfn >> cma->order_per_bit);
+
+	return (ALIGN(cma->base_pfn, (1UL << align_order))
+		- cma->base_pfn) >> cma->order_per_bit;
 }
 
 static unsigned long cma_bitmap_maxno(struct cma *cma)
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index fc00c8c..6817b03 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -1260,6 +1260,7 @@ int do_huge_pmd_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
 	int target_nid, last_cpupid = -1;
 	bool page_locked;
 	bool migrated = false;
+	bool was_writable;
 	int flags = 0;
 
 	/* A PROT_NONE fault should not end up here */
@@ -1291,12 +1292,8 @@ int do_huge_pmd_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
 		flags |= TNF_FAULT_LOCAL;
 	}
 
-	/*
-	 * Avoid grouping on DSO/COW pages in specific and RO pages
-	 * in general, RO pages shouldn't hurt as much anyway since
-	 * they can be in shared cache state.
-	 */
-	if (!pmd_write(pmd))
+	/* See similar comment in do_numa_page for explanation */
+	if (!(vma->vm_flags & VM_WRITE))
 		flags |= TNF_NO_GROUP;
 
 	/*
@@ -1353,12 +1350,17 @@ int do_huge_pmd_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
 	if (migrated) {
 		flags |= TNF_MIGRATED;
 		page_nid = target_nid;
-	}
+	} else
+		flags |= TNF_MIGRATE_FAIL;
 
 	goto out;
 clear_pmdnuma:
 	BUG_ON(!PageLocked(page));
+	was_writable = pmd_write(pmd);
 	pmd = pmd_modify(pmd, vma->vm_page_prot);
+	pmd = pmd_mkyoung(pmd);
+	if (was_writable)
+		pmd = pmd_mkwrite(pmd);
 	set_pmd_at(mm, haddr, pmdp, pmd);
 	update_mmu_cache_pmd(vma, addr, pmdp);
 	unlock_page(page);
@@ -1482,6 +1484,8 @@ int change_huge_pmd(struct vm_area_struct *vma, pmd_t *pmd,
 
 	if (__pmd_trans_huge_lock(pmd, vma, &ptl) == 1) {
 		pmd_t entry;
+		bool preserve_write = prot_numa && pmd_write(*pmd);
+		ret = 1;
 
 		/*
 		 * Avoid trapping faults against the zero page. The read-only
@@ -1490,16 +1494,17 @@ int change_huge_pmd(struct vm_area_struct *vma, pmd_t *pmd,
 		 */
 		if (prot_numa && is_huge_zero_pmd(*pmd)) {
 			spin_unlock(ptl);
-			return 0;
+			return ret;
 		}
 
 		if (!prot_numa || !pmd_protnone(*pmd)) {
-			ret = 1;
 			entry = pmdp_get_and_clear_notify(mm, addr, pmd);
 			entry = pmd_modify(entry, newprot);
+			if (preserve_write)
+				entry = pmd_mkwrite(entry);
 			ret = HPAGE_PMD_NR;
 			set_pmd_at(mm, addr, pmd, entry);
-			BUG_ON(pmd_write(entry));
+			BUG_ON(!preserve_write && pmd_write(entry));
 		}
 		spin_unlock(ptl);
 	}
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 0a9ac6c..c41b2a0 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -917,7 +917,6 @@ static void prep_compound_gigantic_page(struct page *page, unsigned long order)
 	__SetPageHead(page);
 	__ClearPageReserved(page);
 	for (i = 1; i < nr_pages; i++, p = mem_map_next(p, page, i)) {
-		__SetPageTail(p);
 		/*
 		 * For gigantic hugepages allocated through bootmem at
 		 * boot, it's safer to be consistent with the not-gigantic
@@ -933,6 +932,9 @@ static void prep_compound_gigantic_page(struct page *page, unsigned long order)
 		__ClearPageReserved(p);
 		set_page_count(p, 0);
 		p->first_page = page;
+		/* Make sure p->first_page is always valid for PageTail() */
+		smp_wmb();
+		__SetPageTail(p);
 	}
 }
 
diff --git a/mm/kasan/kasan.c b/mm/kasan/kasan.c
index 78fee63..936d816 100644
--- a/mm/kasan/kasan.c
+++ b/mm/kasan/kasan.c
@@ -29,6 +29,7 @@
 #include <linux/stacktrace.h>
 #include <linux/string.h>
 #include <linux/types.h>
+#include <linux/vmalloc.h>
 #include <linux/kasan.h>
 
 #include "kasan.h"
@@ -414,12 +415,19 @@ int kasan_module_alloc(void *addr, size_t size)
 			GFP_KERNEL | __GFP_HIGHMEM | __GFP_ZERO,
 			PAGE_KERNEL, VM_NO_GUARD, NUMA_NO_NODE,
 			__builtin_return_address(0));
-	return ret ? 0 : -ENOMEM;
+
+	if (ret) {
+		find_vm_area(addr)->flags |= VM_KASAN;
+		return 0;
+	}
+
+	return -ENOMEM;
 }
 
-void kasan_module_free(void *addr)
+void kasan_free_shadow(const struct vm_struct *vm)
 {
-	vfree(kasan_mem_to_shadow(addr));
+	if (vm->flags & VM_KASAN)
+		vfree(kasan_mem_to_shadow(vm->addr));
 }
 
 static void register_global(struct kasan_global *global)
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index d18d3a6..b34ef4a 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -5232,7 +5232,9 @@ static void mem_cgroup_bind(struct cgroup_subsys_state *root_css)
 	 * on for the root memcg is enough.
 	 */
 	if (cgroup_on_dfl(root_css->cgroup))
-		mem_cgroup_from_css(root_css)->use_hierarchy = true;
+		root_mem_cgroup->use_hierarchy = true;
+	else
+		root_mem_cgroup->use_hierarchy = false;
 }
 
 static u64 memory_current_read(struct cgroup_subsys_state *css,
@@ -5247,7 +5249,7 @@ static int memory_low_show(struct seq_file *m, void *v)
 	unsigned long low = ACCESS_ONCE(memcg->low);
 
 	if (low == PAGE_COUNTER_MAX)
-		seq_puts(m, "infinity\n");
+		seq_puts(m, "max\n");
 	else
 		seq_printf(m, "%llu\n", (u64)low * PAGE_SIZE);
 
@@ -5262,7 +5264,7 @@ static ssize_t memory_low_write(struct kernfs_open_file *of,
 	int err;
 
 	buf = strstrip(buf);
-	err = page_counter_memparse(buf, "infinity", &low);
+	err = page_counter_memparse(buf, "max", &low);
 	if (err)
 		return err;
 
@@ -5277,7 +5279,7 @@ static int memory_high_show(struct seq_file *m, void *v)
 	unsigned long high = ACCESS_ONCE(memcg->high);
 
 	if (high == PAGE_COUNTER_MAX)
-		seq_puts(m, "infinity\n");
+		seq_puts(m, "max\n");
 	else
 		seq_printf(m, "%llu\n", (u64)high * PAGE_SIZE);
 
@@ -5292,7 +5294,7 @@ static ssize_t memory_high_write(struct kernfs_open_file *of,
 	int err;
 
 	buf = strstrip(buf);
-	err = page_counter_memparse(buf, "infinity", &high);
+	err = page_counter_memparse(buf, "max", &high);
 	if (err)
 		return err;
 
@@ -5307,7 +5309,7 @@ static int memory_max_show(struct seq_file *m, void *v)
 	unsigned long max = ACCESS_ONCE(memcg->memory.limit);
 
 	if (max == PAGE_COUNTER_MAX)
-		seq_puts(m, "infinity\n");
+		seq_puts(m, "max\n");
 	else
 		seq_printf(m, "%llu\n", (u64)max * PAGE_SIZE);
 
@@ -5322,7 +5324,7 @@ static ssize_t memory_max_write(struct kernfs_open_file *of,
 	int err;
 
 	buf = strstrip(buf);
-	err = page_counter_memparse(buf, "infinity", &max);
+	err = page_counter_memparse(buf, "max", &max);
 	if (err)
 		return err;
 
@@ -5426,7 +5428,7 @@ bool mem_cgroup_low(struct mem_cgroup *root, struct mem_cgroup *memcg)
 	if (memcg == root_mem_cgroup)
 		return false;
 
-	if (page_counter_read(&memcg->memory) > memcg->low)
+	if (page_counter_read(&memcg->memory) >= memcg->low)
 		return false;
 
 	while (memcg != root) {
@@ -5435,7 +5437,7 @@ bool mem_cgroup_low(struct mem_cgroup *root, struct mem_cgroup *memcg)
 		if (memcg == root_mem_cgroup)
 			break;
 
-		if (page_counter_read(&memcg->memory) > memcg->low)
+		if (page_counter_read(&memcg->memory) >= memcg->low)
 			return false;
 	}
 	return true;
diff --git a/mm/memory.c b/mm/memory.c
index 8068893..97839f5 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -3035,6 +3035,7 @@ static int do_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
 	int last_cpupid;
 	int target_nid;
 	bool migrated = false;
+	bool was_writable = pte_write(pte);
 	int flags = 0;
 
 	/* A PROT_NONE fault should not end up here */
@@ -3059,6 +3060,8 @@ static int do_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
 	/* Make it present again */
 	pte = pte_modify(pte, vma->vm_page_prot);
 	pte = pte_mkyoung(pte);
+	if (was_writable)
+		pte = pte_mkwrite(pte);
 	set_pte_at(mm, addr, ptep, pte);
 	update_mmu_cache(vma, addr, ptep);
 
@@ -3069,11 +3072,14 @@ static int do_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
 	}
 
 	/*
-	 * Avoid grouping on DSO/COW pages in specific and RO pages
-	 * in general, RO pages shouldn't hurt as much anyway since
-	 * they can be in shared cache state.
+	 * Avoid grouping on RO pages in general. RO pages shouldn't hurt as
+	 * much anyway since they can be in shared cache state. This misses
+	 * the case where a mapping is writable but the process never writes
+	 * to it but pte_write gets cleared during protection updates and
+	 * pte_dirty has unpredictable behaviour between PTE scan updates,
+	 * background writeback, dirty balancing and application behaviour.
 	 */
-	if (!pte_write(pte))
+	if (!(vma->vm_flags & VM_WRITE))
 		flags |= TNF_NO_GROUP;
 
 	/*
@@ -3097,7 +3103,8 @@ static int do_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
 	if (migrated) {
 		page_nid = target_nid;
 		flags |= TNF_MIGRATED;
-	}
+	} else
+		flags |= TNF_MIGRATE_FAIL;
 
 out:
 	if (page_nid != -1)
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index 9fab107..65842d6 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -1092,6 +1092,10 @@ static pg_data_t __ref *hotadd_new_pgdat(int nid, u64 start)
 			return NULL;
 
 		arch_refresh_nodedata(nid, pgdat);
+	} else {
+		/* Reset the nr_zones and classzone_idx to 0 before reuse */
+		pgdat->nr_zones = 0;
+		pgdat->classzone_idx = 0;
 	}
 
 	/* we can use NODE_DATA(nid) from here */
@@ -1977,15 +1981,6 @@ void try_offline_node(int nid)
 		if (is_vmalloc_addr(zone->wait_table))
 			vfree(zone->wait_table);
 	}
-
-	/*
-	 * Since there is no way to guarentee the address of pgdat/zone is not
-	 * on stack of any kernel threads or used by other kernel objects
-	 * without reference counting or other symchronizing method, do not
-	 * reset node_data and free pgdat here. Just reset it to 0 and reuse
-	 * the memory when the node is online again.
-	 */
-	memset(pgdat, 0, sizeof(*pgdat));
 }
 EXPORT_SYMBOL(try_offline_node);
 
diff --git a/mm/mlock.c b/mm/mlock.c
index 73cf098..8a54cd2 100644
--- a/mm/mlock.c
+++ b/mm/mlock.c
@@ -26,10 +26,10 @@
 
 int can_do_mlock(void)
 {
-	if (capable(CAP_IPC_LOCK))
-		return 1;
 	if (rlimit(RLIMIT_MEMLOCK) != 0)
 		return 1;
+	if (capable(CAP_IPC_LOCK))
+		return 1;
 	return 0;
 }
 EXPORT_SYMBOL(can_do_mlock);
diff --git a/mm/mmap.c b/mm/mmap.c
index da9990a..9ec50a3 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -774,10 +774,8 @@ again:			remove_next = 1 + (end > next->vm_end);
 
 			importer->anon_vma = exporter->anon_vma;
 			error = anon_vma_clone(importer, exporter);
-			if (error) {
-				importer->anon_vma = NULL;
+			if (error)
 				return error;
-			}
 		}
 	}
 
diff --git a/mm/mprotect.c b/mm/mprotect.c
index 4472781..8858483 100644
--- a/mm/mprotect.c
+++ b/mm/mprotect.c
@@ -75,6 +75,7 @@ static unsigned long change_pte_range(struct vm_area_struct *vma, pmd_t *pmd,
 		oldpte = *pte;
 		if (pte_present(oldpte)) {
 			pte_t ptent;
+			bool preserve_write = prot_numa && pte_write(oldpte);
 
 			/*
 			 * Avoid trapping faults against the zero or KSM
@@ -94,6 +95,8 @@ static unsigned long change_pte_range(struct vm_area_struct *vma, pmd_t *pmd,
 
 			ptent = ptep_modify_prot_start(mm, addr, pte);
 			ptent = pte_modify(ptent, newprot);
+			if (preserve_write)
+				ptent = pte_mkwrite(ptent);
 
 			/* Avoid taking write faults for known dirty pages */
 			if (dirty_accountable && pte_dirty(ptent) &&
diff --git a/mm/mremap.c b/mm/mremap.c
index 57dadc0..2dc44b1 100644
--- a/mm/mremap.c
+++ b/mm/mremap.c
@@ -286,8 +286,14 @@ static unsigned long move_vma(struct vm_area_struct *vma,
 		old_len = new_len;
 		old_addr = new_addr;
 		new_addr = -ENOMEM;
-	} else if (vma->vm_file && vma->vm_file->f_op->mremap)
-		vma->vm_file->f_op->mremap(vma->vm_file, new_vma);
+	} else if (vma->vm_file && vma->vm_file->f_op->mremap) {
+		err = vma->vm_file->f_op->mremap(vma->vm_file, new_vma);
+		if (err < 0) {
+			move_page_tables(new_vma, new_addr, vma, old_addr,
+					 moved_len, true);
+			return err;
+		}
+	}
 
 	/* Conceal VM_ACCOUNT so old reservation is not undone */
 	if (vm_flags & VM_ACCOUNT) {
diff --git a/mm/nommu.c b/mm/nommu.c
index 7296360..3fba2dc9 100644
--- a/mm/nommu.c
+++ b/mm/nommu.c
@@ -62,6 +62,7 @@ void *high_memory;
 EXPORT_SYMBOL(high_memory);
 struct page *mem_map;
 unsigned long max_mapnr;
+EXPORT_SYMBOL(max_mapnr);
 unsigned long highest_memmap_pfn;
 struct percpu_counter vm_committed_as;
 int sysctl_overcommit_memory = OVERCOMMIT_GUESS; /* heuristic overcommit */
@@ -1213,11 +1214,9 @@ static int do_mmap_private(struct vm_area_struct *vma,
 	if (sysctl_nr_trim_pages && total - point >= sysctl_nr_trim_pages) {
 		total = point;
 		kdebug("try to alloc exact %lu pages", total);
-		base = alloc_pages_exact(len, GFP_KERNEL);
-	} else {
-		base = (void *)__get_free_pages(GFP_KERNEL, order);
 	}
 
+	base = alloc_pages_exact(total << PAGE_SHIFT, GFP_KERNEL);
 	if (!base)
 		goto enomem;
 
diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index 45e187b..644bcb6 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -857,8 +857,11 @@ static void bdi_update_write_bandwidth(struct backing_dev_info *bdi,
 	 *                   bw * elapsed + write_bandwidth * (period - elapsed)
 	 * write_bandwidth = ---------------------------------------------------
 	 *                                          period
+	 *
+	 * @written may have decreased due to account_page_redirty().
+	 * Avoid underflowing @bw calculation.
 	 */
-	bw = written - bdi->written_stamp;
+	bw = written - min(written, bdi->written_stamp);
 	bw *= HZ;
 	if (unlikely(elapsed > period)) {
 		do_div(bw, elapsed);
@@ -922,7 +925,7 @@ static void global_update_bandwidth(unsigned long thresh,
 				    unsigned long now)
 {
 	static DEFINE_SPINLOCK(dirty_lock);
-	static unsigned long update_time;
+	static unsigned long update_time = INITIAL_JIFFIES;
 
 	/*
 	 * check locklessly first to optimize away locking for the most time
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index a47f0b2..40e2942 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -2353,8 +2353,15 @@ __alloc_pages_may_oom(gfp_t gfp_mask, unsigned int order,
 		if (ac->high_zoneidx < ZONE_NORMAL)
 			goto out;
 		/* The OOM killer does not compensate for light reclaim */
-		if (!(gfp_mask & __GFP_FS))
+		if (!(gfp_mask & __GFP_FS)) {
+			/*
+			 * XXX: Page reclaim didn't yield anything,
+			 * and the OOM killer can't be invoked, but
+			 * keep looping as per should_alloc_retry().
+			 */
+			*did_some_progress = 1;
 			goto out;
+		}
 		/*
 		 * GFP_THISNODE contains __GFP_NORETRY and we never hit this.
 		 * Sanity check for bare calls of __GFP_THISNODE, not real OOM.
@@ -2366,7 +2373,8 @@ __alloc_pages_may_oom(gfp_t gfp_mask, unsigned int order,
 			goto out;
 	}
 	/* Exhausted what can be done so it's blamo time */
-	if (out_of_memory(ac->zonelist, gfp_mask, order, ac->nodemask, false))
+	if (out_of_memory(ac->zonelist, gfp_mask, order, ac->nodemask, false)
+			|| WARN_ON_ONCE(gfp_mask & __GFP_NOFAIL))
 		*did_some_progress = 1;
 out:
 	oom_zonelist_unlock(ac->zonelist, gfp_mask);
diff --git a/mm/page_isolation.c b/mm/page_isolation.c
index 72f5ac3..755a42c 100644
--- a/mm/page_isolation.c
+++ b/mm/page_isolation.c
@@ -103,6 +103,7 @@ void unset_migratetype_isolate(struct page *page, unsigned migratetype)
 
 			if (!is_migrate_isolate_page(buddy)) {
 				__isolate_free_page(page, order);
+				kernel_map_pages(page, (1 << order), 1);
 				set_page_refcounted(page);
 				isolated_page = page;
 			}
diff --git a/mm/pagewalk.c b/mm/pagewalk.c
index 75c1f28..29f2f8b 100644
--- a/mm/pagewalk.c
+++ b/mm/pagewalk.c
@@ -265,8 +265,15 @@ int walk_page_range(unsigned long start, unsigned long end,
 			vma = vma->vm_next;
 
 			err = walk_page_test(start, next, walk);
-			if (err > 0)
+			if (err > 0) {
+				/*
+				 * positive return values are purely for
+				 * controlling the pagewalk, so should never
+				 * be passed to the callers.
+				 */
+				err = 0;
 				continue;
+			}
 			if (err < 0)
 				break;
 		}
diff --git a/mm/percpu.c b/mm/percpu.c
index 73c97a5..dfd0248 100644
--- a/mm/percpu.c
+++ b/mm/percpu.c
@@ -1310,7 +1310,7 @@ bool is_kernel_percpu_address(unsigned long addr)
  * and, from the second one, the backing allocator (currently either vm or
  * km) provides translation.
  *
- * The addr can be tranlated simply without checking if it falls into the
+ * The addr can be translated simply without checking if it falls into the
  * first chunk. But the current code reflects better how percpu allocator
  * actually works, and the verification can discover both bugs in percpu
  * allocator itself and per_cpu_ptr_to_phys() callers. So we keep current
@@ -1762,7 +1762,7 @@ early_param("percpu_alloc", percpu_alloc_setup);
  * and other parameters considering needed percpu size, allocation
  * atom size and distances between CPUs.
  *
- * Groups are always mutliples of atom size and CPUs which are of
+ * Groups are always multiples of atom size and CPUs which are of
  * LOCAL_DISTANCE both ways are grouped together and share space for
  * units in the same group.  The returned configuration is guaranteed
  * to have CPUs on different nodes on different groups and >=75% usage
diff --git a/mm/rmap.c b/mm/rmap.c
index 5e3e090..c161a14 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -287,6 +287,13 @@ int anon_vma_clone(struct vm_area_struct *dst, struct vm_area_struct *src)
 	return 0;
 
  enomem_failure:
+	/*
+	 * dst->anon_vma is dropped here otherwise its degree can be incorrectly
+	 * decremented in unlink_anon_vmas().
+	 * We can safely do this because callers of anon_vma_clone() don't care
+	 * about dst->anon_vma if anon_vma_clone() failed.
+	 */
+	dst->anon_vma = NULL;
 	unlink_anon_vmas(dst);
 	return -ENOMEM;
 }
diff --git a/mm/shmem.c b/mm/shmem.c
index 2f17cb5..cf2d0ca 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -1455,6 +1455,9 @@ static struct inode *shmem_get_inode(struct super_block *sb, const struct inode
 
 bool shmem_mapping(struct address_space *mapping)
 {
+	if (!mapping->host)
+		return false;
+
 	return mapping->host->i_sb->s_op == &shmem_ops;
 }
 
diff --git a/mm/slub.c b/mm/slub.c
index 6832c4e..82c4737 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -2449,7 +2449,8 @@ redo:
 	do {
 		tid = this_cpu_read(s->cpu_slab->tid);
 		c = raw_cpu_ptr(s->cpu_slab);
-	} while (IS_ENABLED(CONFIG_PREEMPT) && unlikely(tid != c->tid));
+	} while (IS_ENABLED(CONFIG_PREEMPT) &&
+		 unlikely(tid != READ_ONCE(c->tid)));
 
 	/*
 	 * Irqless object alloc/free algorithm used here depends on sequence
@@ -2718,7 +2719,8 @@ redo:
 	do {
 		tid = this_cpu_read(s->cpu_slab->tid);
 		c = raw_cpu_ptr(s->cpu_slab);
-	} while (IS_ENABLED(CONFIG_PREEMPT) && unlikely(tid != c->tid));
+	} while (IS_ENABLED(CONFIG_PREEMPT) &&
+		 unlikely(tid != READ_ONCE(c->tid)));
 
 	/* Same with comment on barrier() in slab_alloc_node() */
 	barrier();
diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index 35b25e1..49abccf 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -1418,6 +1418,7 @@ struct vm_struct *remove_vm_area(const void *addr)
 		spin_unlock(&vmap_area_lock);
 
 		vmap_debug_free_range(va->va_start, va->va_end);
+		kasan_free_shadow(vm);
 		free_unmap_vmap_area(va);
 		vm->size -= PAGE_SIZE;
 
diff --git a/net/9p/trans_virtio.c b/net/9p/trans_virtio.c
index d8e376a..36a1a73 100644
--- a/net/9p/trans_virtio.c
+++ b/net/9p/trans_virtio.c
@@ -658,14 +658,30 @@ p9_virtio_create(struct p9_client *client, const char *devname, char *args)
 static void p9_virtio_remove(struct virtio_device *vdev)
 {
 	struct virtio_chan *chan = vdev->priv;
-
-	if (chan->inuse)
-		p9_virtio_close(chan->client);
-	vdev->config->del_vqs(vdev);
+	unsigned long warning_time;
 
 	mutex_lock(&virtio_9p_lock);
+
+	/* Remove self from list so we don't get new users. */
 	list_del(&chan->chan_list);
+	warning_time = jiffies;
+
+	/* Wait for existing users to close. */
+	while (chan->inuse) {
+		mutex_unlock(&virtio_9p_lock);
+		msleep(250);
+		if (time_after(jiffies, warning_time + 10 * HZ)) {
+			dev_emerg(&vdev->dev,
+				  "p9_virtio_remove: waiting for device in use.\n");
+			warning_time = jiffies;
+		}
+		mutex_lock(&virtio_9p_lock);
+	}
+
 	mutex_unlock(&virtio_9p_lock);
+
+	vdev->config->del_vqs(vdev);
+
 	sysfs_remove_file(&(vdev->dev.kobj), &dev_attr_mount_tag.attr);
 	kobject_uevent(&(vdev->dev.kobj), KOBJ_CHANGE);
 	kfree(chan->tag);
diff --git a/net/bridge/br.c b/net/bridge/br.c
index fb57ab6..02c24cf 100644
--- a/net/bridge/br.c
+++ b/net/bridge/br.c
@@ -190,6 +190,8 @@ static int __init br_init(void)
 {
 	int err;
 
+	BUILD_BUG_ON(sizeof(struct br_input_skb_cb) > FIELD_SIZEOF(struct sk_buff, cb));
+
 	err = stp_proto_register(&br_stp_proto);
 	if (err < 0) {
 		pr_err("bridge: can't register sap for STP\n");
diff --git a/net/bridge/br_if.c b/net/bridge/br_if.c
index b087d27..1849d96 100644
--- a/net/bridge/br_if.c
+++ b/net/bridge/br_if.c
@@ -563,6 +563,8 @@ int br_del_if(struct net_bridge *br, struct net_device *dev)
 	 */
 	del_nbp(p);
 
+	dev_set_mtu(br->dev, br_min_mtu(br));
+
 	spin_lock_bh(&br->lock);
 	changed_addr = br_stp_recalculate_bridge_id(br);
 	spin_unlock_bh(&br->lock);
diff --git a/net/caif/caif_socket.c b/net/caif/caif_socket.c
index 769b185..a6e2da0 100644
--- a/net/caif/caif_socket.c
+++ b/net/caif/caif_socket.c
@@ -281,7 +281,7 @@ static int caif_seqpkt_recvmsg(struct kiocb *iocb, struct socket *sock,
 	int copylen;
 
 	ret = -EOPNOTSUPP;
-	if (m->msg_flags&MSG_OOB)
+	if (flags & MSG_OOB)
 		goto read_error;
 
 	skb = skb_recv_datagram(sk, flags, 0 , &ret);
diff --git a/net/caif/cffrml.c b/net/caif/cffrml.c
index 8bc7caa..434ba85 100644
--- a/net/caif/cffrml.c
+++ b/net/caif/cffrml.c
@@ -84,7 +84,7 @@ static int cffrml_receive(struct cflayer *layr, struct cfpkt *pkt)
 	u16 tmp;
 	u16 len;
 	u16 hdrchks;
-	u16 pktchks;
+	int pktchks;
 	struct cffrml *this;
 	this = container_obj(layr);
 
diff --git a/net/caif/cfpkt_skbuff.c b/net/caif/cfpkt_skbuff.c
index 1be0b52..f6c3b21 100644
--- a/net/caif/cfpkt_skbuff.c
+++ b/net/caif/cfpkt_skbuff.c
@@ -255,9 +255,9 @@ inline u16 cfpkt_getlen(struct cfpkt *pkt)
 	return skb->len;
 }
 
-inline u16 cfpkt_iterate(struct cfpkt *pkt,
-			 u16 (*iter_func)(u16, void *, u16),
-			 u16 data)
+int cfpkt_iterate(struct cfpkt *pkt,
+		  u16 (*iter_func)(u16, void *, u16),
+		  u16 data)
 {
 	/*
 	 * Don't care about the performance hit of linearizing,
diff --git a/net/can/af_can.c b/net/can/af_can.c
index 66e0804..32d710e 100644
--- a/net/can/af_can.c
+++ b/net/can/af_can.c
@@ -259,6 +259,9 @@ int can_send(struct sk_buff *skb, int loop)
 		goto inval_skb;
 	}
 
+	skb->ip_summed = CHECKSUM_UNNECESSARY;
+
+	skb_reset_mac_header(skb);
 	skb_reset_network_header(skb);
 	skb_reset_transport_header(skb);
 
diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c
index 6b3f54e..a9f4ae4 100644
--- a/net/ceph/messenger.c
+++ b/net/ceph/messenger.c
@@ -484,7 +484,7 @@ static int ceph_tcp_connect(struct ceph_connection *con)
 			       IPPROTO_TCP, &sock);
 	if (ret)
 		return ret;
-	sock->sk->sk_allocation = GFP_NOFS | __GFP_MEMALLOC;
+	sock->sk->sk_allocation = GFP_NOFS;
 
 #ifdef CONFIG_LOCKDEP
 	lockdep_set_class(&sock->sk->sk_lock, &socket_class);
@@ -520,8 +520,6 @@ static int ceph_tcp_connect(struct ceph_connection *con)
 			       ret);
 	}
 
-	sk_set_memalloc(sock->sk);
-
 	con->sock = sock;
 	return 0;
 }
@@ -2808,11 +2806,8 @@ static void con_work(struct work_struct *work)
 {
 	struct ceph_connection *con = container_of(work, struct ceph_connection,
 						   work.work);
-	unsigned long pflags = current->flags;
 	bool fault;
 
-	current->flags |= PF_MEMALLOC;
-
 	mutex_lock(&con->mutex);
 	while (true) {
 		int ret;
@@ -2866,8 +2861,6 @@ static void con_work(struct work_struct *work)
 		con_fault_finish(con);
 
 	con->ops->put(con);
-
-	tsk_restore_flags(current, pflags, PF_MEMALLOC);
 }
 
 /*
diff --git a/net/compat.c b/net/compat.c
index 3236b41..f7bd286 100644
--- a/net/compat.c
+++ b/net/compat.c
@@ -49,6 +49,13 @@ ssize_t get_compat_msghdr(struct msghdr *kmsg,
 	    __get_user(kmsg->msg_controllen, &umsg->msg_controllen) ||
 	    __get_user(kmsg->msg_flags, &umsg->msg_flags))
 		return -EFAULT;
+
+	if (!uaddr)
+		kmsg->msg_namelen = 0;
+
+	if (kmsg->msg_namelen < 0)
+		return -EINVAL;
+
 	if (kmsg->msg_namelen > sizeof(struct sockaddr_storage))
 		kmsg->msg_namelen = sizeof(struct sockaddr_storage);
 	kmsg->msg_control = compat_ptr(tmp3);
@@ -711,24 +718,18 @@ static unsigned char nas[21] = {
 
 COMPAT_SYSCALL_DEFINE3(sendmsg, int, fd, struct compat_msghdr __user *, msg, unsigned int, flags)
 {
-	if (flags & MSG_CMSG_COMPAT)
-		return -EINVAL;
 	return __sys_sendmsg(fd, (struct user_msghdr __user *)msg, flags | MSG_CMSG_COMPAT);
 }
 
 COMPAT_SYSCALL_DEFINE4(sendmmsg, int, fd, struct compat_mmsghdr __user *, mmsg,
 		       unsigned int, vlen, unsigned int, flags)
 {
-	if (flags & MSG_CMSG_COMPAT)
-		return -EINVAL;
 	return __sys_sendmmsg(fd, (struct mmsghdr __user *)mmsg, vlen,
 			      flags | MSG_CMSG_COMPAT);
 }
 
 COMPAT_SYSCALL_DEFINE3(recvmsg, int, fd, struct compat_msghdr __user *, msg, unsigned int, flags)
 {
-	if (flags & MSG_CMSG_COMPAT)
-		return -EINVAL;
 	return __sys_recvmsg(fd, (struct user_msghdr __user *)msg, flags | MSG_CMSG_COMPAT);
 }
 
@@ -751,9 +752,6 @@ COMPAT_SYSCALL_DEFINE5(recvmmsg, int, fd, struct compat_mmsghdr __user *, mmsg,
 	int datagrams;
 	struct timespec ktspec;
 
-	if (flags & MSG_CMSG_COMPAT)
-		return -EINVAL;
-
 	if (timeout == NULL)
 		return __sys_recvmmsg(fd, (struct mmsghdr __user *)mmsg, vlen,
 				      flags | MSG_CMSG_COMPAT, NULL);
diff --git a/net/core/dev.c b/net/core/dev.c
index 8f9710c..45109b7 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -946,7 +946,7 @@ bool dev_valid_name(const char *name)
 		return false;
 
 	while (*name) {
-		if (*name == '/' || isspace(*name))
+		if (*name == '/' || *name == ':' || isspace(*name))
 			return false;
 		name++;
 	}
@@ -2848,7 +2848,9 @@ static void skb_update_prio(struct sk_buff *skb)
 #define skb_update_prio(skb)
 #endif
 
-static DEFINE_PER_CPU(int, xmit_recursion);
+DEFINE_PER_CPU(int, xmit_recursion);
+EXPORT_SYMBOL(xmit_recursion);
+
 #define RECURSION_LIMIT 10
 
 /**
diff --git a/net/core/ethtool.c b/net/core/ethtool.c
index 91f74f3..aa378ec 100644
--- a/net/core/ethtool.c
+++ b/net/core/ethtool.c
@@ -98,6 +98,7 @@ static const char netdev_features_strings[NETDEV_FEATURE_COUNT][ETH_GSTRING_LEN]
 	[NETIF_F_RXALL_BIT] =            "rx-all",
 	[NETIF_F_HW_L2FW_DOFFLOAD_BIT] = "l2-fwd-offload",
 	[NETIF_F_BUSY_POLL_BIT] =        "busy-poll",
+	[NETIF_F_HW_SWITCH_OFFLOAD_BIT] = "hw-switch-offload",
 };
 
 static const char
diff --git a/net/core/fib_rules.c b/net/core/fib_rules.c
index 44706e8..e4fdc9d 100644
--- a/net/core/fib_rules.c
+++ b/net/core/fib_rules.c
@@ -175,9 +175,9 @@ void fib_rules_unregister(struct fib_rules_ops *ops)
 
 	spin_lock(&net->rules_mod_lock);
 	list_del_rcu(&ops->list);
-	fib_rules_cleanup_ops(ops);
 	spin_unlock(&net->rules_mod_lock);
 
+	fib_rules_cleanup_ops(ops);
 	call_rcu(&ops->rcu, fib_rules_put_rcu);
 }
 EXPORT_SYMBOL_GPL(fib_rules_unregister);
diff --git a/net/core/gen_stats.c b/net/core/gen_stats.c
index 0c08062..1e2f46a 100644
--- a/net/core/gen_stats.c
+++ b/net/core/gen_stats.c
@@ -32,6 +32,9 @@ gnet_stats_copy(struct gnet_dump *d, int type, void *buf, int size)
 	return 0;
 
 nla_put_failure:
+	kfree(d->xstats);
+	d->xstats = NULL;
+	d->xstats_len = 0;
 	spin_unlock_bh(d->lock);
 	return -1;
 }
@@ -305,7 +308,9 @@ int
 gnet_stats_copy_app(struct gnet_dump *d, void *st, int len)
 {
 	if (d->compat_xstats) {
-		d->xstats = st;
+		d->xstats = kmemdup(st, len, GFP_ATOMIC);
+		if (!d->xstats)
+			goto err_out;
 		d->xstats_len = len;
 	}
 
@@ -313,6 +318,11 @@ gnet_stats_copy_app(struct gnet_dump *d, void *st, int len)
 		return gnet_stats_copy(d, TCA_STATS_APP, st, len);
 
 	return 0;
+
+err_out:
+	d->xstats_len = 0;
+	spin_unlock_bh(d->lock);
+	return -1;
 }
 EXPORT_SYMBOL(gnet_stats_copy_app);
 
@@ -345,6 +355,9 @@ gnet_stats_finish_copy(struct gnet_dump *d)
 			return -1;
 	}
 
+	kfree(d->xstats);
+	d->xstats = NULL;
+	d->xstats_len = 0;
 	spin_unlock_bh(d->lock);
 	return 0;
 }
diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c
index cb5290b..70d3450 100644
--- a/net/core/net_namespace.c
+++ b/net/core/net_namespace.c
@@ -198,8 +198,10 @@ static int __peernet2id(struct net *net, struct net *peer, bool alloc)
  */
 int peernet2id(struct net *net, struct net *peer)
 {
-	int id = __peernet2id(net, peer, true);
+	bool alloc = atomic_read(&peer->count) == 0 ? false : true;
+	int id;
 
+	id = __peernet2id(net, peer, alloc);
 	return id >= 0 ? id : NETNSA_NSID_NOT_ASSIGNED;
 }
 EXPORT_SYMBOL(peernet2id);
diff --git a/net/core/pktgen.c b/net/core/pktgen.c
index b4899f5b..508155b 100644
--- a/net/core/pktgen.c
+++ b/net/core/pktgen.c
@@ -1134,6 +1134,9 @@ static ssize_t pktgen_if_write(struct file *file,
 			return len;
 
 		i += len;
+		if ((value > 1) &&
+		    (!(pkt_dev->odev->priv_flags & IFF_TX_SKB_SHARING)))
+			return -ENOTSUPP;
 		pkt_dev->burst = value < 1 ? 1 : value;
 		sprintf(pg_result, "OK: burst=%d", pkt_dev->burst);
 		return count;
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index ab293a3..7ebed55 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -1300,7 +1300,6 @@ static int rtnl_dump_ifinfo(struct sk_buff *skb, struct netlink_callback *cb)
 	s_h = cb->args[0];
 	s_idx = cb->args[1];
 
-	rcu_read_lock();
 	cb->seq = net->dev_base_seq;
 
 	/* A hack to preserve kernel<->userspace interface.
@@ -1322,7 +1321,7 @@ static int rtnl_dump_ifinfo(struct sk_buff *skb, struct netlink_callback *cb)
 	for (h = s_h; h < NETDEV_HASHENTRIES; h++, s_idx = 0) {
 		idx = 0;
 		head = &net->dev_index_head[h];
-		hlist_for_each_entry_rcu(dev, head, index_hlist) {
+		hlist_for_each_entry(dev, head, index_hlist) {
 			if (idx < s_idx)
 				goto cont;
 			err = rtnl_fill_ifinfo(skb, dev, RTM_NEWLINK,
@@ -1344,7 +1343,6 @@ cont:
 		}
 	}
 out:
-	rcu_read_unlock();
 	cb->args[1] = idx;
 	cb->args[0] = h;
 
@@ -1934,10 +1932,10 @@ static int rtnl_group_changelink(const struct sk_buff *skb,
 		struct ifinfomsg *ifm,
 		struct nlattr **tb)
 {
-	struct net_device *dev;
+	struct net_device *dev, *aux;
 	int err;
 
-	for_each_netdev(net, dev) {
+	for_each_netdev_safe(net, dev, aux) {
 		if (dev->group == group) {
 			err = do_setlink(skb, dev, ifm, tb, NULL, 0);
 			if (err < 0)
@@ -2012,8 +2010,8 @@ replay:
 	}
 
 	if (1) {
-		struct nlattr *attr[ops ? ops->maxtype + 1 : 0];
-		struct nlattr *slave_attr[m_ops ? m_ops->slave_maxtype + 1 : 0];
+		struct nlattr *attr[ops ? ops->maxtype + 1 : 1];
+		struct nlattr *slave_attr[m_ops ? m_ops->slave_maxtype + 1 : 1];
 		struct nlattr **data = NULL;
 		struct nlattr **slave_data = NULL;
 		struct net *dest_net, *link_net = NULL;
@@ -2122,6 +2120,10 @@ replay:
 		if (IS_ERR(dest_net))
 			return PTR_ERR(dest_net);
 
+		err = -EPERM;
+		if (!netlink_ns_capable(skb, dest_net->user_ns, CAP_NET_ADMIN))
+			goto out;
+
 		if (tb[IFLA_LINK_NETNSID]) {
 			int id = nla_get_s32(tb[IFLA_LINK_NETNSID]);
 
@@ -2130,6 +2132,9 @@ replay:
 				err =  -EINVAL;
 				goto out;
 			}
+			err = -EPERM;
+			if (!netlink_ns_capable(skb, link_net->user_ns, CAP_NET_ADMIN))
+				goto out;
 		}
 
 		dev = rtnl_create_link(link_net ? : dest_net, ifname,
@@ -2161,28 +2166,28 @@ replay:
 			}
 		}
 		err = rtnl_configure_link(dev, ifm);
-		if (err < 0) {
-			if (ops->newlink) {
-				LIST_HEAD(list_kill);
-
-				ops->dellink(dev, &list_kill);
-				unregister_netdevice_many(&list_kill);
-			} else {
-				unregister_netdevice(dev);
-			}
-			goto out;
-		}
-
+		if (err < 0)
+			goto out_unregister;
 		if (link_net) {
 			err = dev_change_net_namespace(dev, dest_net, ifname);
 			if (err < 0)
-				unregister_netdevice(dev);
+				goto out_unregister;
 		}
 out:
 		if (link_net)
 			put_net(link_net);
 		put_net(dest_net);
 		return err;
+out_unregister:
+		if (ops->newlink) {
+			LIST_HEAD(list_kill);
+
+			ops->dellink(dev, &list_kill);
+			unregister_netdevice_many(&list_kill);
+		} else {
+			unregister_netdevice(dev);
+		}
+		goto out;
 	}
 }
 
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 88c613e..8e4ac97 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -3621,13 +3621,14 @@ struct sk_buff *sock_dequeue_err_skb(struct sock *sk)
 {
 	struct sk_buff_head *q = &sk->sk_error_queue;
 	struct sk_buff *skb, *skb_next;
+	unsigned long flags;
 	int err = 0;
 
-	spin_lock_bh(&q->lock);
+	spin_lock_irqsave(&q->lock, flags);
 	skb = __skb_dequeue(q);
 	if (skb && (skb_next = skb_peek(q)))
 		err = SKB_EXT_ERR(skb_next)->ee.ee_errno;
-	spin_unlock_bh(&q->lock);
+	spin_unlock_irqrestore(&q->lock, flags);
 
 	sk->sk_err = err;
 	if (err)
@@ -3732,9 +3733,13 @@ void __skb_tstamp_tx(struct sk_buff *orig_skb,
 		     struct sock *sk, int tstype)
 {
 	struct sk_buff *skb;
-	bool tsonly = sk->sk_tsflags & SOF_TIMESTAMPING_OPT_TSONLY;
+	bool tsonly;
+
+	if (!sk)
+		return;
 
-	if (!sk || !skb_may_tx_timestamp(sk, tsonly))
+	tsonly = sk->sk_tsflags & SOF_TIMESTAMPING_OPT_TSONLY;
+	if (!skb_may_tx_timestamp(sk, tsonly))
 		return;
 
 	if (tsonly)
@@ -4172,7 +4177,7 @@ void skb_scrub_packet(struct sk_buff *skb, bool xnet)
 	skb->ignore_df = 0;
 	skb_dst_drop(skb);
 	skb->mark = 0;
-	skb->sender_cpu = 0;
+	skb_sender_cpu_clear(skb);
 	skb_init_secmark(skb);
 	secpath_reset(skb);
 	nf_reset(skb);
diff --git a/net/core/sock.c b/net/core/sock.c
index 93c8b20..71e3e5f 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -653,6 +653,25 @@ static inline void sock_valbool_flag(struct sock *sk, int bit, int valbool)
 		sock_reset_flag(sk, bit);
 }
 
+bool sk_mc_loop(struct sock *sk)
+{
+	if (dev_recursion_level())
+		return false;
+	if (!sk)
+		return true;
+	switch (sk->sk_family) {
+	case AF_INET:
+		return inet_sk(sk)->mc_loop;
+#if IS_ENABLED(CONFIG_IPV6)
+	case AF_INET6:
+		return inet6_sk(sk)->mc_loop;
+#endif
+	}
+	WARN_ON(1);
+	return true;
+}
+EXPORT_SYMBOL(sk_mc_loop);
+
 /*
  *	This is meant for all protocols to use and covers goings on
  *	at the socket level. Everything here is generic.
@@ -1655,6 +1674,10 @@ void sock_rfree(struct sk_buff *skb)
 }
 EXPORT_SYMBOL(sock_rfree);
 
+/*
+ * Buffer destructor for skbs that are not used directly in read or write
+ * path, e.g. for error handler skbs. Automatically called from kfree_skb.
+ */
 void sock_efree(struct sk_buff *skb)
 {
 	sock_put(skb->sk);
diff --git a/net/core/sysctl_net_core.c b/net/core/sysctl_net_core.c
index 4334248..8ce351f 100644
--- a/net/core/sysctl_net_core.c
+++ b/net/core/sysctl_net_core.c
@@ -25,6 +25,8 @@
 static int zero = 0;
 static int one = 1;
 static int ushort_max = USHRT_MAX;
+static int min_sndbuf = SOCK_MIN_SNDBUF;
+static int min_rcvbuf = SOCK_MIN_RCVBUF;
 
 static int net_msg_warn;	/* Unused, but still a sysctl */
 
@@ -237,7 +239,7 @@ static struct ctl_table net_core_table[] = {
 		.maxlen		= sizeof(int),
 		.mode		= 0644,
 		.proc_handler	= proc_dointvec_minmax,
-		.extra1		= &one,
+		.extra1		= &min_sndbuf,
 	},
 	{
 		.procname	= "rmem_max",
@@ -245,7 +247,7 @@ static struct ctl_table net_core_table[] = {
 		.maxlen		= sizeof(int),
 		.mode		= 0644,
 		.proc_handler	= proc_dointvec_minmax,
-		.extra1		= &one,
+		.extra1		= &min_rcvbuf,
 	},
 	{
 		.procname	= "wmem_default",
@@ -253,7 +255,7 @@ static struct ctl_table net_core_table[] = {
 		.maxlen		= sizeof(int),
 		.mode		= 0644,
 		.proc_handler	= proc_dointvec_minmax,
-		.extra1		= &one,
+		.extra1		= &min_sndbuf,
 	},
 	{
 		.procname	= "rmem_default",
@@ -261,7 +263,7 @@ static struct ctl_table net_core_table[] = {
 		.maxlen		= sizeof(int),
 		.mode		= 0644,
 		.proc_handler	= proc_dointvec_minmax,
-		.extra1		= &one,
+		.extra1		= &min_rcvbuf,
 	},
 	{
 		.procname	= "dev_weight",
diff --git a/net/decnet/dn_route.c b/net/decnet/dn_route.c
index 1d7c125..3b81092 100644
--- a/net/decnet/dn_route.c
+++ b/net/decnet/dn_route.c
@@ -1062,7 +1062,7 @@ source_ok:
 	if (decnet_debug_level & 16)
 		printk(KERN_DEBUG
 		       "dn_route_output_slow: initial checks complete."
-		       " dst=%o4x src=%04x oif=%d try_hard=%d\n",
+		       " dst=%04x src=%04x oif=%d try_hard=%d\n",
 		       le16_to_cpu(fld.daddr), le16_to_cpu(fld.saddr),
 		       fld.flowidn_oif, try_hard);
 
diff --git a/net/decnet/dn_rules.c b/net/decnet/dn_rules.c
index faf7cc3..9d66a0f 100644
--- a/net/decnet/dn_rules.c
+++ b/net/decnet/dn_rules.c
@@ -248,7 +248,9 @@ void __init dn_fib_rules_init(void)
 
 void __exit dn_fib_rules_cleanup(void)
 {
+	rtnl_lock();
 	fib_rules_unregister(dn_fib_rules_ops);
+	rtnl_unlock();
 	rcu_barrier();
 }
 
diff --git a/net/dsa/dsa.c b/net/dsa/dsa.c
index 2173402..4dea2e0 100644
--- a/net/dsa/dsa.c
+++ b/net/dsa/dsa.c
@@ -501,12 +501,10 @@ static struct net_device *dev_to_net_device(struct device *dev)
 #ifdef CONFIG_OF
 static int dsa_of_setup_routing_table(struct dsa_platform_data *pd,
 					struct dsa_chip_data *cd,
-					int chip_index,
+					int chip_index, int port_index,
 					struct device_node *link)
 {
-	int ret;
 	const __be32 *reg;
-	int link_port_addr;
 	int link_sw_addr;
 	struct device_node *parent_sw;
 	int len;
@@ -519,6 +517,10 @@ static int dsa_of_setup_routing_table(struct dsa_platform_data *pd,
 	if (!reg || (len != sizeof(*reg) * 2))
 		return -EINVAL;
 
+	/*
+	 * Get the destination switch number from the second field of its 'reg'
+	 * property, i.e. for "reg = <0x19 1>" sw_addr is '1'.
+	 */
 	link_sw_addr = be32_to_cpup(reg + 1);
 
 	if (link_sw_addr >= pd->nr_chips)
@@ -535,20 +537,9 @@ static int dsa_of_setup_routing_table(struct dsa_platform_data *pd,
 		memset(cd->rtable, -1, pd->nr_chips * sizeof(s8));
 	}
 
-	reg = of_get_property(link, "reg", NULL);
-	if (!reg) {
-		ret = -EINVAL;
-		goto out;
-	}
-
-	link_port_addr = be32_to_cpup(reg);
-
-	cd->rtable[link_sw_addr] = link_port_addr;
+	cd->rtable[link_sw_addr] = port_index;
 
 	return 0;
-out:
-	kfree(cd->rtable);
-	return ret;
 }
 
 static void dsa_of_free_platform_data(struct dsa_platform_data *pd)
@@ -658,7 +649,7 @@ static int dsa_of_probe(struct platform_device *pdev)
 			if (!strcmp(port_name, "dsa") && link &&
 					pd->nr_chips > 1) {
 				ret = dsa_of_setup_routing_table(pd, cd,
-						chip_index, link);
+						chip_index, port_index, link);
 				if (ret)
 					goto out_free_chip;
 			}
diff --git a/net/hsr/hsr_device.c b/net/hsr/hsr_device.c
index a138d75..44d2746 100644
--- a/net/hsr/hsr_device.c
+++ b/net/hsr/hsr_device.c
@@ -359,8 +359,11 @@ static void hsr_dev_destroy(struct net_device *hsr_dev)
 	struct hsr_port *port;
 
 	hsr = netdev_priv(hsr_dev);
+
+	rtnl_lock();
 	hsr_for_each_port(hsr, port)
 		hsr_del_port(port);
+	rtnl_unlock();
 
 	del_timer_sync(&hsr->prune_timer);
 	del_timer_sync(&hsr->announce_timer);
diff --git a/net/hsr/hsr_main.c b/net/hsr/hsr_main.c
index 779d28b..cd37d00 100644
--- a/net/hsr/hsr_main.c
+++ b/net/hsr/hsr_main.c
@@ -36,6 +36,10 @@ static int hsr_netdev_notify(struct notifier_block *nb, unsigned long event,
 			return NOTIFY_DONE;	/* Not an HSR device */
 		hsr = netdev_priv(dev);
 		port = hsr_port_get_hsr(hsr, HSR_PT_MASTER);
+		if (port == NULL) {
+			/* Resend of notification concerning removed device? */
+			return NOTIFY_DONE;
+		}
 	} else {
 		hsr = port->hsr;
 	}
diff --git a/net/hsr/hsr_slave.c b/net/hsr/hsr_slave.c
index a348dcb..7d37366 100644
--- a/net/hsr/hsr_slave.c
+++ b/net/hsr/hsr_slave.c
@@ -181,8 +181,10 @@ void hsr_del_port(struct hsr_port *port)
 	list_del_rcu(&port->port_list);
 
 	if (port != master) {
-		netdev_update_features(master->dev);
-		dev_set_mtu(master->dev, hsr_get_max_mtu(hsr));
+		if (master != NULL) {
+			netdev_update_features(master->dev);
+			dev_set_mtu(master->dev, hsr_get_max_mtu(hsr));
+		}
 		netdev_rx_handler_unregister(port->dev);
 		dev_set_promiscuity(port->dev, -1);
 	}
@@ -192,5 +194,7 @@ void hsr_del_port(struct hsr_port *port)
 	 */
 
 	synchronize_rcu();
-	dev_put(port->dev);
+
+	if (port != master)
+		dev_put(port->dev);
 }
diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c
index 57be71d..23b9b3e 100644
--- a/net/ipv4/fib_frontend.c
+++ b/net/ipv4/fib_frontend.c
@@ -1111,11 +1111,10 @@ static void ip_fib_net_exit(struct net *net)
 {
 	unsigned int i;
 
+	rtnl_lock();
 #ifdef CONFIG_IP_MULTIPLE_TABLES
 	fib4_rules_exit(net);
 #endif
-
-	rtnl_lock();
 	for (i = 0; i < FIB_TABLE_HASHSZ; i++) {
 		struct fib_table *tb;
 		struct hlist_head *head;
diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c
index 14d02ea..3e44b9b 100644
--- a/net/ipv4/inet_connection_sock.c
+++ b/net/ipv4/inet_connection_sock.c
@@ -268,6 +268,7 @@ static int inet_csk_wait_for_connect(struct sock *sk, long timeo)
 		release_sock(sk);
 		if (reqsk_queue_empty(&icsk->icsk_accept_queue))
 			timeo = schedule_timeout(timeo);
+		sched_annotate_sleep();
 		lock_sock(sk);
 		err = 0;
 		if (!reqsk_queue_empty(&icsk->icsk_accept_queue))
diff --git a/net/ipv4/inet_diag.c b/net/ipv4/inet_diag.c
index 81751f1..592aff3 100644
--- a/net/ipv4/inet_diag.c
+++ b/net/ipv4/inet_diag.c
@@ -71,6 +71,20 @@ static inline void inet_diag_unlock_handler(
 	mutex_unlock(&inet_diag_table_mutex);
 }
 
+static size_t inet_sk_attr_size(void)
+{
+	return	  nla_total_size(sizeof(struct tcp_info))
+		+ nla_total_size(1) /* INET_DIAG_SHUTDOWN */
+		+ nla_total_size(1) /* INET_DIAG_TOS */
+		+ nla_total_size(1) /* INET_DIAG_TCLASS */
+		+ nla_total_size(sizeof(struct inet_diag_meminfo))
+		+ nla_total_size(sizeof(struct inet_diag_msg))
+		+ nla_total_size(SK_MEMINFO_VARS * sizeof(u32))
+		+ nla_total_size(TCP_CA_NAME_MAX)
+		+ nla_total_size(sizeof(struct tcpvegas_info))
+		+ 64;
+}
+
 int inet_sk_diag_fill(struct sock *sk, struct inet_connection_sock *icsk,
 			      struct sk_buff *skb, struct inet_diag_req_v2 *req,
 			      struct user_namespace *user_ns,		      	
@@ -326,9 +340,7 @@ int inet_diag_dump_one_icsk(struct inet_hashinfo *hashinfo, struct sk_buff *in_s
 	if (err)
 		goto out;
 
-	rep = nlmsg_new(sizeof(struct inet_diag_msg) +
-			sizeof(struct inet_diag_meminfo) +
-			sizeof(struct tcp_info) + 64, GFP_KERNEL);
+	rep = nlmsg_new(inet_sk_attr_size(), GFP_KERNEL);
 	if (!rep) {
 		err = -ENOMEM;
 		goto out;
diff --git a/net/ipv4/ip_forward.c b/net/ipv4/ip_forward.c
index 787b3c2..d9bc28a 100644
--- a/net/ipv4/ip_forward.c
+++ b/net/ipv4/ip_forward.c
@@ -67,6 +67,7 @@ static int ip_forward_finish(struct sk_buff *skb)
 	if (unlikely(opt->optlen))
 		ip_forward_options(skb);
 
+	skb_sender_cpu_clear(skb);
 	return dst_output(skb);
 }
 
diff --git a/net/ipv4/ip_fragment.c b/net/ipv4/ip_fragment.c
index e5b6d0d..145a50c 100644
--- a/net/ipv4/ip_fragment.c
+++ b/net/ipv4/ip_fragment.c
@@ -659,27 +659,30 @@ EXPORT_SYMBOL(ip_defrag);
 struct sk_buff *ip_check_defrag(struct sk_buff *skb, u32 user)
 {
 	struct iphdr iph;
+	int netoff;
 	u32 len;
 
 	if (skb->protocol != htons(ETH_P_IP))
 		return skb;
 
-	if (!skb_copy_bits(skb, 0, &iph, sizeof(iph)))
+	netoff = skb_network_offset(skb);
+
+	if (skb_copy_bits(skb, netoff, &iph, sizeof(iph)) < 0)
 		return skb;
 
 	if (iph.ihl < 5 || iph.version != 4)
 		return skb;
 
 	len = ntohs(iph.tot_len);
-	if (skb->len < len || len < (iph.ihl * 4))
+	if (skb->len < netoff + len || len < (iph.ihl * 4))
 		return skb;
 
 	if (ip_is_fragment(&iph)) {
 		skb = skb_share_check(skb, GFP_ATOMIC);
 		if (skb) {
-			if (!pskb_may_pull(skb, iph.ihl*4))
+			if (!pskb_may_pull(skb, netoff + iph.ihl * 4))
 				return skb;
-			if (pskb_trim_rcsum(skb, len))
+			if (pskb_trim_rcsum(skb, netoff + len))
 				return skb;
 			memset(IPCB(skb), 0, sizeof(struct inet_skb_parm));
 			if (ip_defrag(skb, user))
diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index d68199d..a7aea20 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -888,7 +888,8 @@ static int __ip_append_data(struct sock *sk,
 	cork->length += length;
 	if (((length > mtu) || (skb && skb_is_gso(skb))) &&
 	    (sk->sk_protocol == IPPROTO_UDP) &&
-	    (rt->dst.dev->features & NETIF_F_UFO) && !rt->dst.header_len) {
+	    (rt->dst.dev->features & NETIF_F_UFO) && !rt->dst.header_len &&
+	    (sk->sk_type == SOCK_DGRAM)) {
 		err = ip_ufo_append_data(sk, queue, getfrag, from, length,
 					 hh_len, fragheaderlen, transhdrlen,
 					 maxfraglen, flags);
diff --git a/net/ipv4/ip_sockglue.c b/net/ipv4/ip_sockglue.c
index 31d8c71..5cd9927 100644
--- a/net/ipv4/ip_sockglue.c
+++ b/net/ipv4/ip_sockglue.c
@@ -432,17 +432,32 @@ void ip_local_error(struct sock *sk, int err, __be32 daddr, __be16 port, u32 inf
 		kfree_skb(skb);
 }
 
-static bool ipv4_pktinfo_prepare_errqueue(const struct sock *sk,
-					  const struct sk_buff *skb,
-					  int ee_origin)
+/* IPv4 supports cmsg on all imcp errors and some timestamps
+ *
+ * Timestamp code paths do not initialize the fields expected by cmsg:
+ * the PKTINFO fields in skb->cb[]. Fill those in here.
+ */
+static bool ipv4_datagram_support_cmsg(const struct sock *sk,
+				       struct sk_buff *skb,
+				       int ee_origin)
 {
-	struct in_pktinfo *info = PKTINFO_SKB_CB(skb);
+	struct in_pktinfo *info;
+
+	if (ee_origin == SO_EE_ORIGIN_ICMP)
+		return true;
 
-	if ((ee_origin != SO_EE_ORIGIN_TIMESTAMPING) ||
-	    (!(sk->sk_tsflags & SOF_TIMESTAMPING_OPT_CMSG)) ||
+	if (ee_origin == SO_EE_ORIGIN_LOCAL)
+		return false;
+
+	/* Support IP_PKTINFO on tstamp packets if requested, to correlate
+	 * timestamp with egress dev. Not possible for packets without dev
+	 * or without payload (SOF_TIMESTAMPING_OPT_TSONLY).
+	 */
+	if ((!(sk->sk_tsflags & SOF_TIMESTAMPING_OPT_CMSG)) ||
 	    (!skb->dev))
 		return false;
 
+	info = PKTINFO_SKB_CB(skb);
 	info->ipi_spec_dst.s_addr = ip_hdr(skb)->saddr;
 	info->ipi_ifindex = skb->dev->ifindex;
 	return true;
@@ -483,7 +498,7 @@ int ip_recv_error(struct sock *sk, struct msghdr *msg, int len, int *addr_len)
 
 	serr = SKB_EXT_ERR(skb);
 
-	if (sin && skb->len) {
+	if (sin && serr->port) {
 		sin->sin_family = AF_INET;
 		sin->sin_addr.s_addr = *(__be32 *)(skb_network_header(skb) +
 						   serr->addr_offset);
@@ -496,9 +511,7 @@ int ip_recv_error(struct sock *sk, struct msghdr *msg, int len, int *addr_len)
 	sin = &errhdr.offender;
 	memset(sin, 0, sizeof(*sin));
 
-	if (skb->len &&
-	    (serr->ee.ee_origin == SO_EE_ORIGIN_ICMP ||
-	     ipv4_pktinfo_prepare_errqueue(sk, skb, serr->ee.ee_origin))) {
+	if (ipv4_datagram_support_cmsg(sk, skb, serr->ee.ee_origin)) {
 		sin->sin_family = AF_INET;
 		sin->sin_addr.s_addr = ip_hdr(skb)->saddr;
 		if (inet_sk(sk)->cmsg_flags)
diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c
index 9d78427..fe54eba 100644
--- a/net/ipv4/ipmr.c
+++ b/net/ipv4/ipmr.c
@@ -268,7 +268,7 @@ static int __net_init ipmr_rules_init(struct net *net)
 	return 0;
 
 err2:
-	kfree(mrt);
+	ipmr_free_table(mrt);
 err1:
 	fib_rules_unregister(ops);
 	return err;
@@ -278,11 +278,13 @@ static void __net_exit ipmr_rules_exit(struct net *net)
 {
 	struct mr_table *mrt, *next;
 
+	rtnl_lock();
 	list_for_each_entry_safe(mrt, next, &net->ipv4.mr_tables, list) {
 		list_del(&mrt->list);
 		ipmr_free_table(mrt);
 	}
 	fib_rules_unregister(net->ipv4.mr_rules_ops);
+	rtnl_unlock();
 }
 #else
 #define ipmr_for_each_table(mrt, net) \
@@ -308,7 +310,10 @@ static int __net_init ipmr_rules_init(struct net *net)
 
 static void __net_exit ipmr_rules_exit(struct net *net)
 {
+	rtnl_lock();
 	ipmr_free_table(net->ipv4.mrt);
+	net->ipv4.mrt = NULL;
+	rtnl_unlock();
 }
 #endif
 
diff --git a/net/ipv4/netfilter/ip_tables.c b/net/ipv4/netfilter/ip_tables.c
index 99e810f..cf5e82f 100644
--- a/net/ipv4/netfilter/ip_tables.c
+++ b/net/ipv4/netfilter/ip_tables.c
@@ -272,9 +272,9 @@ static void trace_packet(const struct sk_buff *skb,
 		    &chainname, &comment, &rulenum) != 0)
 			break;
 
-	nf_log_packet(net, AF_INET, hook, skb, in, out, &trace_loginfo,
-		      "TRACE: %s:%s:%s:%u ",
-		      tablename, chainname, comment, rulenum);
+	nf_log_trace(net, AF_INET, hook, skb, in, out, &trace_loginfo,
+		     "TRACE: %s:%s:%s:%u ",
+		     tablename, chainname, comment, rulenum);
 }
 #endif
 
diff --git a/net/ipv4/ping.c b/net/ipv4/ping.c
index e9f66e1..208d543 100644
--- a/net/ipv4/ping.c
+++ b/net/ipv4/ping.c
@@ -259,6 +259,9 @@ int ping_init_sock(struct sock *sk)
 	kgid_t low, high;
 	int ret = 0;
 
+	if (sk->sk_family == AF_INET6)
+		sk->sk_ipv6only = 1;
+
 	inet_get_ping_group_range_net(net, &low, &high);
 	if (gid_lte(low, group) && gid_lte(group, high))
 		return 0;
@@ -305,6 +308,11 @@ static int ping_check_bind_addr(struct sock *sk, struct inet_sock *isk,
 		if (addr_len < sizeof(*addr))
 			return -EINVAL;
 
+		if (addr->sin_family != AF_INET &&
+		    !(addr->sin_family == AF_UNSPEC &&
+		      addr->sin_addr.s_addr == htonl(INADDR_ANY)))
+			return -EAFNOSUPPORT;
+
 		pr_debug("ping_check_bind_addr(sk=%p,addr=%pI4,port=%d)\n",
 			 sk, &addr->sin_addr.s_addr, ntohs(addr->sin_port));
 
@@ -330,7 +338,7 @@ static int ping_check_bind_addr(struct sock *sk, struct inet_sock *isk,
 			return -EINVAL;
 
 		if (addr->sin6_family != AF_INET6)
-			return -EINVAL;
+			return -EAFNOSUPPORT;
 
 		pr_debug("ping_check_bind_addr(sk=%p,addr=%pI6c,port=%d)\n",
 			 sk, addr->sin6_addr.s6_addr, ntohs(addr->sin6_port));
@@ -716,7 +724,7 @@ static int ping_v4_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *m
 		if (msg->msg_namelen < sizeof(*usin))
 			return -EINVAL;
 		if (usin->sin_family != AF_INET)
-			return -EINVAL;
+			return -EAFNOSUPPORT;
 		daddr = usin->sin_addr.s_addr;
 		/* no remote port */
 	} else {
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 9d72a0f..995a225 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -835,17 +835,13 @@ static unsigned int tcp_xmit_size_goal(struct sock *sk, u32 mss_now,
 				       int large_allowed)
 {
 	struct tcp_sock *tp = tcp_sk(sk);
-	u32 new_size_goal, size_goal, hlen;
+	u32 new_size_goal, size_goal;
 
 	if (!large_allowed || !sk_can_gso(sk))
 		return mss_now;
 
-	/* Maybe we should/could use sk->sk_prot->max_header here ? */
-	hlen = inet_csk(sk)->icsk_af_ops->net_header_len +
-	       inet_csk(sk)->icsk_ext_hdr_len +
-	       tp->tcp_header_len;
-
-	new_size_goal = sk->sk_gso_max_size - 1 - hlen;
+	/* Note : tcp_tso_autosize() will eventually split this later */
+	new_size_goal = sk->sk_gso_max_size - 1 - MAX_TCP_HEADER;
 	new_size_goal = tcp_bound_to_half_wnd(tp, new_size_goal);
 
 	/* We try hard to avoid divides here */
diff --git a/net/ipv4/tcp_cong.c b/net/ipv4/tcp_cong.c
index d694088..62856e1 100644
--- a/net/ipv4/tcp_cong.c
+++ b/net/ipv4/tcp_cong.c
@@ -378,6 +378,12 @@ EXPORT_SYMBOL_GPL(tcp_slow_start);
  */
 void tcp_cong_avoid_ai(struct tcp_sock *tp, u32 w, u32 acked)
 {
+	/* If credits accumulated at a higher w, apply them gently now. */
+	if (tp->snd_cwnd_cnt >= w) {
+		tp->snd_cwnd_cnt = 0;
+		tp->snd_cwnd++;
+	}
+
 	tp->snd_cwnd_cnt += acked;
 	if (tp->snd_cwnd_cnt >= w) {
 		u32 delta = tp->snd_cwnd_cnt / w;
diff --git a/net/ipv4/tcp_cubic.c b/net/ipv4/tcp_cubic.c
index 4b276d1..06d3d66 100644
--- a/net/ipv4/tcp_cubic.c
+++ b/net/ipv4/tcp_cubic.c
@@ -306,8 +306,10 @@ tcp_friendliness:
 		}
 	}
 
-	if (ca->cnt == 0)			/* cannot be zero */
-		ca->cnt = 1;
+	/* The maximum rate of cwnd increase CUBIC allows is 1 packet per
+	 * 2 packets ACKed, meaning cwnd grows at 1.5x per RTT.
+	 */
+	ca->cnt = max(ca->cnt, 2U);
 }
 
 static void bictcp_cong_avoid(struct sock *sk, u32 ack, u32 acked)
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 8fdd27b..f501ac04 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -3105,10 +3105,11 @@ static int tcp_clean_rtx_queue(struct sock *sk, int prior_fackets,
 			if (!first_ackt.v64)
 				first_ackt = last_ackt;
 
-			if (!(sacked & TCPCB_SACKED_ACKED))
+			if (!(sacked & TCPCB_SACKED_ACKED)) {
 				reord = min(pkts_acked, reord);
-			if (!after(scb->end_seq, tp->high_seq))
-				flag |= FLAG_ORIG_SACK_ACKED;
+				if (!after(scb->end_seq, tp->high_seq))
+					flag |= FLAG_ORIG_SACK_ACKED;
+			}
 		}
 
 		if (sacked & TCPCB_SACKED_ACKED)
@@ -4770,7 +4771,7 @@ static bool tcp_should_expand_sndbuf(const struct sock *sk)
 		return false;
 
 	/* If we filled the congestion window, do not expand.  */
-	if (tp->packets_out >= tp->snd_cwnd)
+	if (tcp_packets_in_flight(tp) >= tp->snd_cwnd)
 		return false;
 
 	return true;
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 5a2dfed..f1756ee 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -1518,7 +1518,7 @@ void tcp_v4_early_demux(struct sk_buff *skb)
 		skb->sk = sk;
 		skb->destructor = sock_edemux;
 		if (sk->sk_state != TCP_TIME_WAIT) {
-			struct dst_entry *dst = sk->sk_rx_dst;
+			struct dst_entry *dst = READ_ONCE(sk->sk_rx_dst);
 
 			if (dst)
 				dst = dst_check(dst, 0);
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index a2a796c..1db253e 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -2773,15 +2773,11 @@ void tcp_send_fin(struct sock *sk)
 	} else {
 		/* Socket is locked, keep trying until memory is available. */
 		for (;;) {
-			skb = alloc_skb_fclone(MAX_TCP_HEADER,
-					       sk->sk_allocation);
+			skb = sk_stream_alloc_skb(sk, 0, sk->sk_allocation);
 			if (skb)
 				break;
 			yield();
 		}
-
-		/* Reserve space for headers and prepare control bits. */
-		skb_reserve(skb, MAX_TCP_HEADER);
 		/* FIN eats a sequence byte, write_seq advanced by tcp_queue_skb(). */
 		tcp_init_nondata_skb(skb, tp->write_seq,
 				     TCPHDR_ACK | TCPHDR_FIN);
diff --git a/net/ipv4/xfrm4_output.c b/net/ipv4/xfrm4_output.c
index d5f6bd9..dab7381 100644
--- a/net/ipv4/xfrm4_output.c
+++ b/net/ipv4/xfrm4_output.c
@@ -63,6 +63,7 @@ int xfrm4_prepare_output(struct xfrm_state *x, struct sk_buff *skb)
 		return err;
 
 	IPCB(skb)->flags |= IPSKB_XFRM_TUNNEL_SIZE;
+	skb->protocol = htons(ETH_P_IP);
 
 	return x->outer_mode->output2(x, skb);
 }
@@ -71,7 +72,6 @@ EXPORT_SYMBOL(xfrm4_prepare_output);
 int xfrm4_output_finish(struct sk_buff *skb)
 {
 	memset(IPCB(skb), 0, sizeof(*IPCB(skb)));
-	skb->protocol = htons(ETH_P_IP);
 
 #ifdef CONFIG_NETFILTER
 	IPCB(skb)->flags |= IPSKB_XFRM_TRANSFORMED;
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 98e4a63..b603002 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -4903,6 +4903,21 @@ int addrconf_sysctl_forward(struct ctl_table *ctl, int write,
 	return ret;
 }
 
+static
+int addrconf_sysctl_mtu(struct ctl_table *ctl, int write,
+			void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+	struct inet6_dev *idev = ctl->extra1;
+	int min_mtu = IPV6_MIN_MTU;
+	struct ctl_table lctl;
+
+	lctl = *ctl;
+	lctl.extra1 = &min_mtu;
+	lctl.extra2 = idev ? &idev->dev->mtu : NULL;
+
+	return proc_dointvec_minmax(&lctl, write, buffer, lenp, ppos);
+}
+
 static void dev_disable_change(struct inet6_dev *idev)
 {
 	struct netdev_notifier_info info;
@@ -5054,7 +5069,7 @@ static struct addrconf_sysctl_table
 			.data		= &ipv6_devconf.mtu6,
 			.maxlen		= sizeof(int),
 			.mode		= 0644,
-			.proc_handler	= proc_dointvec,
+			.proc_handler	= addrconf_sysctl_mtu,
 		},
 		{
 			.procname	= "accept_ra",
diff --git a/net/ipv6/datagram.c b/net/ipv6/datagram.c
index c215be7..ace8dac 100644
--- a/net/ipv6/datagram.c
+++ b/net/ipv6/datagram.c
@@ -325,14 +325,34 @@ void ipv6_local_rxpmtu(struct sock *sk, struct flowi6 *fl6, u32 mtu)
 	kfree_skb(skb);
 }
 
-static void ip6_datagram_prepare_pktinfo_errqueue(struct sk_buff *skb)
+/* IPv6 supports cmsg on all origins aside from SO_EE_ORIGIN_LOCAL.
+ *
+ * At one point, excluding local errors was a quick test to identify icmp/icmp6
+ * errors. This is no longer true, but the test remained, so the v6 stack,
+ * unlike v4, also honors cmsg requests on all wifi and timestamp errors.
+ *
+ * Timestamp code paths do not initialize the fields expected by cmsg:
+ * the PKTINFO fields in skb->cb[]. Fill those in here.
+ */
+static bool ip6_datagram_support_cmsg(struct sk_buff *skb,
+				      struct sock_exterr_skb *serr)
 {
-	int ifindex = skb->dev ? skb->dev->ifindex : -1;
+	if (serr->ee.ee_origin == SO_EE_ORIGIN_ICMP ||
+	    serr->ee.ee_origin == SO_EE_ORIGIN_ICMP6)
+		return true;
+
+	if (serr->ee.ee_origin == SO_EE_ORIGIN_LOCAL)
+		return false;
+
+	if (!skb->dev)
+		return false;
 
 	if (skb->protocol == htons(ETH_P_IPV6))
-		IP6CB(skb)->iif = ifindex;
+		IP6CB(skb)->iif = skb->dev->ifindex;
 	else
-		PKTINFO_SKB_CB(skb)->ipi_ifindex = ifindex;
+		PKTINFO_SKB_CB(skb)->ipi_ifindex = skb->dev->ifindex;
+
+	return true;
 }
 
 /*
@@ -369,7 +389,7 @@ int ipv6_recv_error(struct sock *sk, struct msghdr *msg, int len, int *addr_len)
 
 	serr = SKB_EXT_ERR(skb);
 
-	if (sin && skb->len) {
+	if (sin && serr->port) {
 		const unsigned char *nh = skb_network_header(skb);
 		sin->sin6_family = AF_INET6;
 		sin->sin6_flowinfo = 0;
@@ -394,14 +414,11 @@ int ipv6_recv_error(struct sock *sk, struct msghdr *msg, int len, int *addr_len)
 	memcpy(&errhdr.ee, &serr->ee, sizeof(struct sock_extended_err));
 	sin = &errhdr.offender;
 	memset(sin, 0, sizeof(*sin));
-	if (serr->ee.ee_origin != SO_EE_ORIGIN_LOCAL && skb->len) {
+
+	if (ip6_datagram_support_cmsg(skb, serr)) {
 		sin->sin6_family = AF_INET6;
-		if (np->rxopt.all) {
-			if (serr->ee.ee_origin != SO_EE_ORIGIN_ICMP &&
-			    serr->ee.ee_origin != SO_EE_ORIGIN_ICMP6)
-				ip6_datagram_prepare_pktinfo_errqueue(skb);
+		if (np->rxopt.all)
 			ip6_datagram_recv_common_ctl(sk, msg, skb);
-		}
 		if (skb->protocol == htons(ETH_P_IPV6)) {
 			sin->sin6_addr = ipv6_hdr(skb)->saddr;
 			if (np->rxopt.all)
diff --git a/net/ipv6/fib6_rules.c b/net/ipv6/fib6_rules.c
index b4d5e1d..70bc6ab 100644
--- a/net/ipv6/fib6_rules.c
+++ b/net/ipv6/fib6_rules.c
@@ -104,6 +104,7 @@ static int fib6_rule_action(struct fib_rule *rule, struct flowi *flp,
 				goto again;
 			flp6->saddr = saddr;
 		}
+		err = rt->dst.error;
 		goto out;
 	}
 again:
@@ -321,7 +322,9 @@ out_fib6_rules_ops:
 
 static void __net_exit fib6_rules_net_exit(struct net *net)
 {
+	rtnl_lock();
 	fib_rules_unregister(net->ipv6.fib6_rules_ops);
+	rtnl_unlock();
 }
 
 static struct pernet_operations fib6_rules_net_ops = {
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 7deebf1..36cf0ab 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -318,6 +318,7 @@ static int ip6_forward_proxy_check(struct sk_buff *skb)
 
 static inline int ip6_forward_finish(struct sk_buff *skb)
 {
+	skb_sender_cpu_clear(skb);
 	return dst_output(skb);
 }
 
@@ -541,7 +542,8 @@ int ip6_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
 {
 	struct sk_buff *frag;
 	struct rt6_info *rt = (struct rt6_info *)skb_dst(skb);
-	struct ipv6_pinfo *np = skb->sk ? inet6_sk(skb->sk) : NULL;
+	struct ipv6_pinfo *np = skb->sk && !dev_recursion_level() ?
+				inet6_sk(skb->sk) : NULL;
 	struct ipv6hdr *tmp_hdr;
 	struct frag_hdr *fh;
 	unsigned int mtu, hlen, left, len;
@@ -1298,7 +1300,8 @@ emsgsize:
 	if (((length > mtu) ||
 	     (skb && skb_is_gso(skb))) &&
 	    (sk->sk_protocol == IPPROTO_UDP) &&
-	    (rt->dst.dev->features & NETIF_F_UFO)) {
+	    (rt->dst.dev->features & NETIF_F_UFO) &&
+	    (sk->sk_type == SOCK_DGRAM)) {
 		err = ip6_ufo_append_data(sk, queue, getfrag, from, length,
 					  hh_len, fragheaderlen,
 					  transhdrlen, mtu, flags, rt);
diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
index 266a264..ddd94ec 100644
--- a/net/ipv6/ip6_tunnel.c
+++ b/net/ipv6/ip6_tunnel.c
@@ -314,7 +314,7 @@ out:
  *   Create tunnel matching given parameters.
  *
  * Return:
- *   created tunnel or NULL
+ *   created tunnel or error pointer
  **/
 
 static struct ip6_tnl *ip6_tnl_create(struct net *net, struct __ip6_tnl_parm *p)
@@ -322,7 +322,7 @@ static struct ip6_tnl *ip6_tnl_create(struct net *net, struct __ip6_tnl_parm *p)
 	struct net_device *dev;
 	struct ip6_tnl *t;
 	char name[IFNAMSIZ];
-	int err;
+	int err = -ENOMEM;
 
 	if (p->name[0])
 		strlcpy(name, p->name, IFNAMSIZ);
@@ -348,7 +348,7 @@ static struct ip6_tnl *ip6_tnl_create(struct net *net, struct __ip6_tnl_parm *p)
 failed_free:
 	ip6_dev_free(dev);
 failed:
-	return NULL;
+	return ERR_PTR(err);
 }
 
 /**
@@ -362,7 +362,7 @@ failed:
  *   tunnel device is created and registered for use.
  *
  * Return:
- *   matching tunnel or NULL
+ *   matching tunnel or error pointer
  **/
 
 static struct ip6_tnl *ip6_tnl_locate(struct net *net,
@@ -380,13 +380,13 @@ static struct ip6_tnl *ip6_tnl_locate(struct net *net,
 		if (ipv6_addr_equal(local, &t->parms.laddr) &&
 		    ipv6_addr_equal(remote, &t->parms.raddr)) {
 			if (create)
-				return NULL;
+				return ERR_PTR(-EEXIST);
 
 			return t;
 		}
 	}
 	if (!create)
-		return NULL;
+		return ERR_PTR(-ENODEV);
 	return ip6_tnl_create(net, p);
 }
 
@@ -1420,7 +1420,7 @@ ip6_tnl_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
 			}
 			ip6_tnl_parm_from_user(&p1, &p);
 			t = ip6_tnl_locate(net, &p1, 0);
-			if (t == NULL)
+			if (IS_ERR(t))
 				t = netdev_priv(dev);
 		} else {
 			memset(&p, 0, sizeof(p));
@@ -1445,7 +1445,7 @@ ip6_tnl_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
 		ip6_tnl_parm_from_user(&p1, &p);
 		t = ip6_tnl_locate(net, &p1, cmd == SIOCADDTUNNEL);
 		if (cmd == SIOCCHGTUNNEL) {
-			if (t != NULL) {
+			if (!IS_ERR(t)) {
 				if (t->dev != dev) {
 					err = -EEXIST;
 					break;
@@ -1457,14 +1457,15 @@ ip6_tnl_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
 			else
 				err = ip6_tnl_update(t, &p1);
 		}
-		if (t) {
+		if (!IS_ERR(t)) {
 			err = 0;
 			ip6_tnl_parm_to_user(&p, &t->parms);
 			if (copy_to_user(ifr->ifr_ifru.ifru_data, &p, sizeof(p)))
 				err = -EFAULT;
 
-		} else
-			err = (cmd == SIOCADDTUNNEL ? -ENOBUFS : -ENOENT);
+		} else {
+			err = PTR_ERR(t);
+		}
 		break;
 	case SIOCDELTUNNEL:
 		err = -EPERM;
@@ -1478,7 +1479,7 @@ ip6_tnl_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
 			err = -ENOENT;
 			ip6_tnl_parm_from_user(&p1, &p);
 			t = ip6_tnl_locate(net, &p1, 0);
-			if (t == NULL)
+			if (IS_ERR(t))
 				break;
 			err = -EPERM;
 			if (t->dev == ip6n->fb_tnl_dev)
@@ -1672,12 +1673,13 @@ static int ip6_tnl_newlink(struct net *src_net, struct net_device *dev,
 			   struct nlattr *tb[], struct nlattr *data[])
 {
 	struct net *net = dev_net(dev);
-	struct ip6_tnl *nt;
+	struct ip6_tnl *nt, *t;
 
 	nt = netdev_priv(dev);
 	ip6_tnl_netlink_parms(data, &nt->parms);
 
-	if (ip6_tnl_locate(net, &nt->parms, 0))
+	t = ip6_tnl_locate(net, &nt->parms, 0);
+	if (!IS_ERR(t))
 		return -EEXIST;
 
 	return ip6_tnl_create2(dev);
@@ -1697,8 +1699,7 @@ static int ip6_tnl_changelink(struct net_device *dev, struct nlattr *tb[],
 	ip6_tnl_netlink_parms(data, &p);
 
 	t = ip6_tnl_locate(net, &p, 0);
-
-	if (t) {
+	if (!IS_ERR(t)) {
 		if (t->dev != dev)
 			return -EEXIST;
 	} else
diff --git a/net/ipv6/ip6mr.c b/net/ipv6/ip6mr.c
index 34b6826..312e0ff 100644
--- a/net/ipv6/ip6mr.c
+++ b/net/ipv6/ip6mr.c
@@ -252,7 +252,7 @@ static int __net_init ip6mr_rules_init(struct net *net)
 	return 0;
 
 err2:
-	kfree(mrt);
+	ip6mr_free_table(mrt);
 err1:
 	fib_rules_unregister(ops);
 	return err;
@@ -267,8 +267,8 @@ static void __net_exit ip6mr_rules_exit(struct net *net)
 		list_del(&mrt->list);
 		ip6mr_free_table(mrt);
 	}
-	rtnl_unlock();
 	fib_rules_unregister(net->ipv6.mr6_rules_ops);
+	rtnl_unlock();
 }
 #else
 #define ip6mr_for_each_table(mrt, net) \
@@ -336,7 +336,7 @@ static struct mr6_table *ip6mr_new_table(struct net *net, u32 id)
 
 static void ip6mr_free_table(struct mr6_table *mrt)
 {
-	del_timer(&mrt->ipmr_expire_timer);
+	del_timer_sync(&mrt->ipmr_expire_timer);
 	mroute_clean_tables(mrt);
 	kfree(mrt);
 }
diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c
index 471ed24..14ecdaf 100644
--- a/net/ipv6/ndisc.c
+++ b/net/ipv6/ndisc.c
@@ -1218,7 +1218,14 @@ static void ndisc_router_discovery(struct sk_buff *skb)
 	if (rt)
 		rt6_set_expires(rt, jiffies + (HZ * lifetime));
 	if (ra_msg->icmph.icmp6_hop_limit) {
-		in6_dev->cnf.hop_limit = ra_msg->icmph.icmp6_hop_limit;
+		/* Only set hop_limit on the interface if it is higher than
+		 * the current hop_limit.
+		 */
+		if (in6_dev->cnf.hop_limit < ra_msg->icmph.icmp6_hop_limit) {
+			in6_dev->cnf.hop_limit = ra_msg->icmph.icmp6_hop_limit;
+		} else {
+			ND_PRINTK(2, warn, "RA: Got route advertisement with lower hop_limit than current\n");
+		}
 		if (rt)
 			dst_metric_set(&rt->dst, RTAX_HOPLIMIT,
 				       ra_msg->icmph.icmp6_hop_limit);
diff --git a/net/ipv6/netfilter/ip6_tables.c b/net/ipv6/netfilter/ip6_tables.c
index e080fbb..bb00c6f 100644
--- a/net/ipv6/netfilter/ip6_tables.c
+++ b/net/ipv6/netfilter/ip6_tables.c
@@ -298,9 +298,9 @@ static void trace_packet(const struct sk_buff *skb,
 		    &chainname, &comment, &rulenum) != 0)
 			break;
 
-	nf_log_packet(net, AF_INET6, hook, skb, in, out, &trace_loginfo,
-		      "TRACE: %s:%s:%s:%u ",
-		      tablename, chainname, comment, rulenum);
+	nf_log_trace(net, AF_INET6, hook, skb, in, out, &trace_loginfo,
+		     "TRACE: %s:%s:%s:%u ",
+		     tablename, chainname, comment, rulenum);
 }
 #endif
 
diff --git a/net/ipv6/ping.c b/net/ipv6/ping.c
index bd46f73..a2dfff6 100644
--- a/net/ipv6/ping.c
+++ b/net/ipv6/ping.c
@@ -102,9 +102,10 @@ int ping_v6_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
 
 	if (msg->msg_name) {
 		DECLARE_SOCKADDR(struct sockaddr_in6 *, u, msg->msg_name);
-		if (msg->msg_namelen < sizeof(struct sockaddr_in6) ||
-		    u->sin6_family != AF_INET6) {
+		if (msg->msg_namelen < sizeof(*u))
 			return -EINVAL;
+		if (u->sin6_family != AF_INET6) {
+			return -EAFNOSUPPORT;
 		}
 		if (sk->sk_bound_dev_if &&
 		    sk->sk_bound_dev_if != u->sin6_scope_id) {
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 5d46832..1f5e622 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -1411,6 +1411,15 @@ static void tcp_v6_fill_cb(struct sk_buff *skb, const struct ipv6hdr *hdr,
 	TCP_SKB_CB(skb)->sacked = 0;
 }
 
+static void tcp_v6_restore_cb(struct sk_buff *skb)
+{
+	/* We need to move header back to the beginning if xfrm6_policy_check()
+	 * and tcp_v6_fill_cb() are going to be called again.
+	 */
+	memmove(IP6CB(skb), &TCP_SKB_CB(skb)->header.h6,
+		sizeof(struct inet6_skb_parm));
+}
+
 static int tcp_v6_rcv(struct sk_buff *skb)
 {
 	const struct tcphdr *th;
@@ -1543,6 +1552,7 @@ do_time_wait:
 			inet_twsk_deschedule(tw, &tcp_death_row);
 			inet_twsk_put(tw);
 			sk = sk2;
+			tcp_v6_restore_cb(skb);
 			goto process;
 		}
 		/* Fall through to ACK */
@@ -1551,6 +1561,7 @@ do_time_wait:
 		tcp_v6_timewait_ack(sk, skb);
 		break;
 	case TCP_TW_RST:
+		tcp_v6_restore_cb(skb);
 		goto no_tcp_socket;
 	case TCP_TW_SUCCESS:
 		;
@@ -1585,7 +1596,7 @@ static void tcp_v6_early_demux(struct sk_buff *skb)
 		skb->sk = sk;
 		skb->destructor = sock_edemux;
 		if (sk->sk_state != TCP_TIME_WAIT) {
-			struct dst_entry *dst = sk->sk_rx_dst;
+			struct dst_entry *dst = READ_ONCE(sk->sk_rx_dst);
 
 			if (dst)
 				dst = dst_check(dst, inet6_sk(sk)->rx_dst_cookie);
diff --git a/net/ipv6/udp_offload.c b/net/ipv6/udp_offload.c
index ab889bb..be2c0ba 100644
--- a/net/ipv6/udp_offload.c
+++ b/net/ipv6/udp_offload.c
@@ -112,11 +112,9 @@ static struct sk_buff *udp6_ufo_fragment(struct sk_buff *skb,
 		fptr = (struct frag_hdr *)(skb_network_header(skb) + unfrag_ip6hlen);
 		fptr->nexthdr = nexthdr;
 		fptr->reserved = 0;
-		if (skb_shinfo(skb)->ip6_frag_id)
-			fptr->identification = skb_shinfo(skb)->ip6_frag_id;
-		else
-			ipv6_select_ident(fptr,
-					  (struct rt6_info *)skb_dst(skb));
+		if (!skb_shinfo(skb)->ip6_frag_id)
+			ipv6_proxy_select_ident(skb);
+		fptr->identification = skb_shinfo(skb)->ip6_frag_id;
 
 		/* Fragment the skb. ipv6 header and the remaining fields of the
 		 * fragment header are updated in ipv6_gso_segment()
diff --git a/net/ipv6/xfrm6_output.c b/net/ipv6/xfrm6_output.c
index ca3f29b..010f8bd 100644
--- a/net/ipv6/xfrm6_output.c
+++ b/net/ipv6/xfrm6_output.c
@@ -114,6 +114,7 @@ int xfrm6_prepare_output(struct xfrm_state *x, struct sk_buff *skb)
 		return err;
 
 	skb->ignore_df = 1;
+	skb->protocol = htons(ETH_P_IPV6);
 
 	return x->outer_mode->output2(x, skb);
 }
@@ -122,7 +123,6 @@ EXPORT_SYMBOL(xfrm6_prepare_output);
 int xfrm6_output_finish(struct sk_buff *skb)
 {
 	memset(IP6CB(skb), 0, sizeof(*IP6CB(skb)));
-	skb->protocol = htons(ETH_P_IPV6);
 
 #ifdef CONFIG_NETFILTER
 	IP6CB(skb)->flags |= IP6SKB_XFRM_TRANSFORMED;
diff --git a/net/ipv6/xfrm6_policy.c b/net/ipv6/xfrm6_policy.c
index 48bf5a0..8d2d01b 100644
--- a/net/ipv6/xfrm6_policy.c
+++ b/net/ipv6/xfrm6_policy.c
@@ -200,6 +200,7 @@ _decode_session6(struct sk_buff *skb, struct flowi *fl, int reverse)
 
 #if IS_ENABLED(CONFIG_IPV6_MIP6)
 		case IPPROTO_MH:
+			offset += ipv6_optlen(exthdr);
 			if (!onlyproto && pskb_may_pull(skb, nh + offset + 3 - skb->data)) {
 				struct ip6_mh *mh;
 
diff --git a/net/irda/ircomm/ircomm_tty.c b/net/irda/ircomm/ircomm_tty.c
index 40695b9..683346d 100644
--- a/net/irda/ircomm/ircomm_tty.c
+++ b/net/irda/ircomm/ircomm_tty.c
@@ -798,7 +798,9 @@ static void ircomm_tty_wait_until_sent(struct tty_struct *tty, int timeout)
 	orig_jiffies = jiffies;
 
 	/* Set poll time to 200 ms */
-	poll_time = IRDA_MIN(timeout, msecs_to_jiffies(200));
+	poll_time = msecs_to_jiffies(200);
+	if (timeout)
+		poll_time = min_t(unsigned long, timeout, poll_time);
 
 	spin_lock_irqsave(&self->spinlock, flags);
 	while (self->tx_skb && self->tx_skb->len) {
@@ -811,7 +813,7 @@ static void ircomm_tty_wait_until_sent(struct tty_struct *tty, int timeout)
 			break;
 	}
 	spin_unlock_irqrestore(&self->spinlock, flags);
-	current->state = TASK_RUNNING;
+	__set_current_state(TASK_RUNNING);
 }
 
 /*
diff --git a/net/irda/irnet/irnet_ppp.c b/net/irda/irnet/irnet_ppp.c
index 3c83a1e..1215693 100644
--- a/net/irda/irnet/irnet_ppp.c
+++ b/net/irda/irnet/irnet_ppp.c
@@ -305,7 +305,7 @@ irnet_ctrl_read(irnet_socket *	ap,
 
   /* Put ourselves on the wait queue to be woken up */
   add_wait_queue(&irnet_events.rwait, &wait);
-  current->state = TASK_INTERRUPTIBLE;
+  set_current_state(TASK_INTERRUPTIBLE);
   for(;;)
     {
       /* If there is unread events */
@@ -321,7 +321,7 @@ irnet_ctrl_read(irnet_socket *	ap,
       /* Yield and wait to be woken up */
       schedule();
     }
-  current->state = TASK_RUNNING;
+  __set_current_state(TASK_RUNNING);
   remove_wait_queue(&irnet_events.rwait, &wait);
 
   /* Did we got it ? */
diff --git a/net/iucv/af_iucv.c b/net/iucv/af_iucv.c
index 2e9953b..53d9311 100644
--- a/net/iucv/af_iucv.c
+++ b/net/iucv/af_iucv.c
@@ -1114,10 +1114,8 @@ static int iucv_sock_sendmsg(struct kiocb *iocb, struct socket *sock,
 			noblock, &err);
 	else
 		skb = sock_alloc_send_skb(sk, len, noblock, &err);
-	if (!skb) {
-		err = -ENOMEM;
+	if (!skb)
 		goto out;
-	}
 	if (iucv->transport == AF_IUCV_TRANS_HIPER)
 		skb_reserve(skb, sizeof(struct af_iucv_trans_hdr) + ETH_HLEN);
 	if (memcpy_from_msg(skb_put(skb, len), msg, len)) {
diff --git a/net/l2tp/l2tp_core.c b/net/l2tp/l2tp_core.c
index 895348e..a29a504 100644
--- a/net/l2tp/l2tp_core.c
+++ b/net/l2tp/l2tp_core.c
@@ -1871,6 +1871,7 @@ static int __init l2tp_init(void)
 	l2tp_wq = alloc_workqueue("l2tp", WQ_UNBOUND, 0);
 	if (!l2tp_wq) {
 		pr_err("alloc_workqueue failed\n");
+		unregister_pernet_device(&l2tp_net_ops);
 		rc = -ENOMEM;
 		goto out;
 	}
diff --git a/net/mac80211/agg-rx.c b/net/mac80211/agg-rx.c
index a48bad4..7702978 100644
--- a/net/mac80211/agg-rx.c
+++ b/net/mac80211/agg-rx.c
@@ -49,8 +49,6 @@ static void ieee80211_free_tid_rx(struct rcu_head *h)
 		container_of(h, struct tid_ampdu_rx, rcu_head);
 	int i;
 
-	del_timer_sync(&tid_rx->reorder_timer);
-
 	for (i = 0; i < tid_rx->buf_size; i++)
 		__skb_queue_purge(&tid_rx->reorder_buf[i]);
 	kfree(tid_rx->reorder_buf);
@@ -93,6 +91,12 @@ void ___ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
 
 	del_timer_sync(&tid_rx->session_timer);
 
+	/* make sure ieee80211_sta_reorder_release() doesn't re-arm the timer */
+	spin_lock_bh(&tid_rx->reorder_lock);
+	tid_rx->removed = true;
+	spin_unlock_bh(&tid_rx->reorder_lock);
+	del_timer_sync(&tid_rx->reorder_timer);
+
 	call_rcu(&tid_rx->rcu_head, ieee80211_free_tid_rx);
 }
 
diff --git a/net/mac80211/chan.c b/net/mac80211/chan.c
index ff0d2db..5bcd4e5 100644
--- a/net/mac80211/chan.c
+++ b/net/mac80211/chan.c
@@ -1508,6 +1508,8 @@ static void __ieee80211_vif_release_channel(struct ieee80211_sub_if_data *sdata)
 	if (ieee80211_chanctx_refcount(local, ctx) == 0)
 		ieee80211_free_chanctx(local, ctx);
 
+	sdata->radar_required = false;
+
 	/* Unreserving may ready an in-place reservation. */
 	if (use_reserved_switch)
 		ieee80211_vif_use_reserved_switch(local);
@@ -1566,6 +1568,9 @@ int ieee80211_vif_use_channel(struct ieee80211_sub_if_data *sdata,
 	ieee80211_recalc_smps_chanctx(local, ctx);
 	ieee80211_recalc_radar_chanctx(local, ctx);
  out:
+	if (ret)
+		sdata->radar_required = false;
+
 	mutex_unlock(&local->chanctx_mtx);
 	return ret;
 }
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 3afe368..8d53d65 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -58,13 +58,24 @@ struct ieee80211_local;
 #define IEEE80211_UNSET_POWER_LEVEL	INT_MIN
 
 /*
- * Some APs experience problems when working with U-APSD. Decrease the
- * probability of that happening by using legacy mode for all ACs but VO.
- * The AP that caused us trouble was a Cisco 4410N. It ignores our
- * setting, and always treats non-VO ACs as legacy.
+ * Some APs experience problems when working with U-APSD. Decreasing the
+ * probability of that happening by using legacy mode for all ACs but VO isn't
+ * enough.
+ *
+ * Cisco 4410N originally forced us to enable VO by default only because it
+ * treated non-VO ACs as legacy.
+ *
+ * However some APs (notably Netgear R7000) silently reclassify packets to
+ * different ACs. Since u-APSD ACs require trigger frames for frame retrieval
+ * clients would never see some frames (e.g. ARP responses) or would fetch them
+ * accidentally after a long time.
+ *
+ * It makes little sense to enable u-APSD queues by default because it needs
+ * userspace applications to be aware of it to actually take advantage of the
+ * possible additional powersavings. Implicitly depending on driver autotrigger
+ * frame support doesn't make much sense.
  */
-#define IEEE80211_DEFAULT_UAPSD_QUEUES \
-	IEEE80211_WMM_IE_STA_QOSINFO_AC_VO
+#define IEEE80211_DEFAULT_UAPSD_QUEUES 0
 
 #define IEEE80211_DEFAULT_MAX_SP_LEN		\
 	IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL
@@ -453,6 +464,7 @@ struct ieee80211_if_managed {
 	unsigned int flags;
 
 	bool csa_waiting_bcn;
+	bool csa_ignored_same_chan;
 
 	bool beacon_crc_valid;
 	u32 beacon_crc;
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 10ac632..142f66a 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -1150,6 +1150,17 @@ ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
 		return;
 	}
 
+	if (cfg80211_chandef_identical(&csa_ie.chandef,
+				       &sdata->vif.bss_conf.chandef)) {
+		if (ifmgd->csa_ignored_same_chan)
+			return;
+		sdata_info(sdata,
+			   "AP %pM tries to chanswitch to same channel, ignore\n",
+			   ifmgd->associated->bssid);
+		ifmgd->csa_ignored_same_chan = true;
+		return;
+	}
+
 	mutex_lock(&local->mtx);
 	mutex_lock(&local->chanctx_mtx);
 	conf = rcu_dereference_protected(sdata->vif.chanctx_conf,
@@ -1210,6 +1221,7 @@ ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
 	sdata->vif.csa_active = true;
 	sdata->csa_chandef = csa_ie.chandef;
 	sdata->csa_block_tx = csa_ie.mode;
+	ifmgd->csa_ignored_same_chan = false;
 
 	if (sdata->csa_block_tx)
 		ieee80211_stop_vif_queues(local, sdata,
@@ -2090,6 +2102,7 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata,
 
 	sdata->vif.csa_active = false;
 	ifmgd->csa_waiting_bcn = false;
+	ifmgd->csa_ignored_same_chan = false;
 	if (sdata->csa_block_tx) {
 		ieee80211_wake_vif_queues(local, sdata,
 					  IEEE80211_QUEUE_STOP_REASON_CSA);
@@ -3204,7 +3217,8 @@ static const u64 care_about_ies =
 	(1ULL << WLAN_EID_CHANNEL_SWITCH) |
 	(1ULL << WLAN_EID_PWR_CONSTRAINT) |
 	(1ULL << WLAN_EID_HT_CAPABILITY) |
-	(1ULL << WLAN_EID_HT_OPERATION);
+	(1ULL << WLAN_EID_HT_OPERATION) |
+	(1ULL << WLAN_EID_EXT_CHANSWITCH_ANN);
 
 static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
 				     struct ieee80211_mgmt *mgmt, size_t len,
diff --git a/net/mac80211/rc80211_minstrel.c b/net/mac80211/rc80211_minstrel.c
index 7c86a00..ef6e8a6 100644
--- a/net/mac80211/rc80211_minstrel.c
+++ b/net/mac80211/rc80211_minstrel.c
@@ -373,7 +373,7 @@ minstrel_get_rate(void *priv, struct ieee80211_sta *sta,
 		rate++;
 		mi->sample_deferred++;
 	} else {
-		if (!msr->sample_limit != 0)
+		if (!msr->sample_limit)
 			return;
 
 		mi->sample_packets++;
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 1101563..1eb730b 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -873,9 +873,10 @@ static void ieee80211_sta_reorder_release(struct ieee80211_sub_if_data *sdata,
 
  set_release_timer:
 
-		mod_timer(&tid_agg_rx->reorder_timer,
-			  tid_agg_rx->reorder_time[j] + 1 +
-			  HT_RX_REORDER_BUF_TIMEOUT);
+		if (!tid_agg_rx->removed)
+			mod_timer(&tid_agg_rx->reorder_timer,
+				  tid_agg_rx->reorder_time[j] + 1 +
+				  HT_RX_REORDER_BUF_TIMEOUT);
 	} else {
 		del_timer(&tid_agg_rx->reorder_timer);
 	}
@@ -2214,6 +2215,9 @@ ieee80211_rx_h_mesh_fwding(struct ieee80211_rx_data *rx)
 	hdr = (struct ieee80211_hdr *) skb->data;
 	mesh_hdr = (struct ieee80211s_hdr *) (skb->data + hdrlen);
 
+	if (ieee80211_drop_unencrypted(rx, hdr->frame_control))
+		return RX_DROP_MONITOR;
+
 	/* frame is in RMC, don't forward */
 	if (ieee80211_is_data(hdr->frame_control) &&
 	    is_multicast_ether_addr(hdr->addr1) &&
diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h
index 925e68f..fb0fc13 100644
--- a/net/mac80211/sta_info.h
+++ b/net/mac80211/sta_info.h
@@ -175,6 +175,7 @@ struct tid_ampdu_tx {
  * @reorder_lock: serializes access to reorder buffer, see below.
  * @auto_seq: used for offloaded BA sessions to automatically pick head_seq_and
  *	and ssn.
+ * @removed: this session is removed (but might have been found due to RCU)
  *
  * This structure's lifetime is managed by RCU, assignments to
  * the array holding it must hold the aggregation mutex.
@@ -199,6 +200,7 @@ struct tid_ampdu_rx {
 	u16 timeout;
 	u8 dialog_token;
 	bool auto_seq;
+	bool removed;
 };
 
 /**
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 88a18ff..07bd8db 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -566,6 +566,7 @@ ieee80211_tx_h_check_control_port_protocol(struct ieee80211_tx_data *tx)
 		if (tx->sdata->control_port_no_encrypt)
 			info->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT;
 		info->control.flags |= IEEE80211_TX_CTRL_PORT_CTRL_PROTO;
+		info->flags |= IEEE80211_TX_CTL_USE_MINRATE;
 	}
 
 	return TX_CONTINUE;
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 8428f4a..747bdcf 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -3178,7 +3178,7 @@ int ieee80211_check_combinations(struct ieee80211_sub_if_data *sdata,
 		wdev_iter = &sdata_iter->wdev;
 
 		if (sdata_iter == sdata ||
-		    rcu_access_pointer(sdata_iter->vif.chanctx_conf) == NULL ||
+		    !ieee80211_sdata_running(sdata_iter) ||
 		    local->hw.wiphy->software_iftypes & BIT(wdev_iter->iftype))
 			continue;
 
diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c
index e557590..ed99448 100644
--- a/net/netfilter/ipvs/ip_vs_ctl.c
+++ b/net/netfilter/ipvs/ip_vs_ctl.c
@@ -3402,7 +3402,7 @@ static int ip_vs_genl_set_cmd(struct sk_buff *skb, struct genl_info *info)
 		if (udest.af == 0)
 			udest.af = svc->af;
 
-		if (udest.af != svc->af) {
+		if (udest.af != svc->af && cmd != IPVS_CMD_DEL_DEST) {
 			/* The synchronization protocol is incompatible
 			 * with mixed family services
 			 */
diff --git a/net/netfilter/ipvs/ip_vs_sync.c b/net/netfilter/ipvs/ip_vs_sync.c
index c47ffd7..d93ceeb 100644
--- a/net/netfilter/ipvs/ip_vs_sync.c
+++ b/net/netfilter/ipvs/ip_vs_sync.c
@@ -896,6 +896,8 @@ static void ip_vs_proc_conn(struct net *net, struct ip_vs_conn_param *param,
 			IP_VS_DBG(2, "BACKUP, add new conn. failed\n");
 			return;
 		}
+		if (!(flags & IP_VS_CONN_F_TEMPLATE))
+			kfree(param->pe_data);
 	}
 
 	if (opt)
@@ -1169,6 +1171,7 @@ static inline int ip_vs_proc_sync_conn(struct net *net, __u8 *p, __u8 *msg_end)
 				(opt_flags & IPVS_OPT_F_SEQ_DATA ? &opt : NULL)
 				);
 #endif
+	ip_vs_pe_put(param.pe);
 	return 0;
 	/* Error exit */
 out:
diff --git a/net/netfilter/nf_log.c b/net/netfilter/nf_log.c
index 0d8448f..675d12c 100644
--- a/net/netfilter/nf_log.c
+++ b/net/netfilter/nf_log.c
@@ -212,6 +212,30 @@ void nf_log_packet(struct net *net,
 }
 EXPORT_SYMBOL(nf_log_packet);
 
+void nf_log_trace(struct net *net,
+		  u_int8_t pf,
+		  unsigned int hooknum,
+		  const struct sk_buff *skb,
+		  const struct net_device *in,
+		  const struct net_device *out,
+		  const struct nf_loginfo *loginfo, const char *fmt, ...)
+{
+	va_list args;
+	char prefix[NF_LOG_PREFIXLEN];
+	const struct nf_logger *logger;
+
+	rcu_read_lock();
+	logger = rcu_dereference(net->nf.nf_loggers[pf]);
+	if (logger) {
+		va_start(args, fmt);
+		vsnprintf(prefix, sizeof(prefix), fmt, args);
+		va_end(args);
+		logger->logfn(net, pf, hooknum, skb, in, out, loginfo, prefix);
+	}
+	rcu_read_unlock();
+}
+EXPORT_SYMBOL(nf_log_trace);
+
 #define S_SIZE (1024 - (sizeof(unsigned int) + 1))
 
 struct nf_log_buf {
diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index 199fd0f..ac1a952 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -227,7 +227,7 @@ nft_rule_deactivate_next(struct net *net, struct nft_rule *rule)
 
 static inline void nft_rule_clear(struct net *net, struct nft_rule *rule)
 {
-	rule->genmask = 0;
+	rule->genmask &= ~(1 << gencursor_next(net));
 }
 
 static int
@@ -1225,7 +1225,10 @@ static int nf_tables_newchain(struct sock *nlsk, struct sk_buff *skb,
 
 	if (nla[NFTA_CHAIN_POLICY]) {
 		if ((chain != NULL &&
-		    !(chain->flags & NFT_BASE_CHAIN)) ||
+		    !(chain->flags & NFT_BASE_CHAIN)))
+			return -EOPNOTSUPP;
+
+		if (chain == NULL &&
 		    nla[NFTA_CHAIN_HOOK] == NULL)
 			return -EOPNOTSUPP;
 
@@ -1711,9 +1714,12 @@ static int nf_tables_fill_rule_info(struct sk_buff *skb, struct net *net,
 	}
 	nla_nest_end(skb, list);
 
-	if (rule->ulen &&
-	    nla_put(skb, NFTA_RULE_USERDATA, rule->ulen, nft_userdata(rule)))
-		goto nla_put_failure;
+	if (rule->udata) {
+		struct nft_userdata *udata = nft_userdata(rule);
+		if (nla_put(skb, NFTA_RULE_USERDATA, udata->len + 1,
+			    udata->data) < 0)
+			goto nla_put_failure;
+	}
 
 	nlmsg_end(skb, nlh);
 	return 0;
@@ -1896,11 +1902,12 @@ static int nf_tables_newrule(struct sock *nlsk, struct sk_buff *skb,
 	struct nft_table *table;
 	struct nft_chain *chain;
 	struct nft_rule *rule, *old_rule = NULL;
+	struct nft_userdata *udata;
 	struct nft_trans *trans = NULL;
 	struct nft_expr *expr;
 	struct nft_ctx ctx;
 	struct nlattr *tmp;
-	unsigned int size, i, n, ulen = 0;
+	unsigned int size, i, n, ulen = 0, usize = 0;
 	int err, rem;
 	bool create;
 	u64 handle, pos_handle;
@@ -1968,12 +1975,19 @@ static int nf_tables_newrule(struct sock *nlsk, struct sk_buff *skb,
 			n++;
 		}
 	}
+	/* Check for overflow of dlen field */
+	err = -EFBIG;
+	if (size >= 1 << 12)
+		goto err1;
 
-	if (nla[NFTA_RULE_USERDATA])
+	if (nla[NFTA_RULE_USERDATA]) {
 		ulen = nla_len(nla[NFTA_RULE_USERDATA]);
+		if (ulen > 0)
+			usize = sizeof(struct nft_userdata) + ulen;
+	}
 
 	err = -ENOMEM;
-	rule = kzalloc(sizeof(*rule) + size + ulen, GFP_KERNEL);
+	rule = kzalloc(sizeof(*rule) + size + usize, GFP_KERNEL);
 	if (rule == NULL)
 		goto err1;
 
@@ -1981,10 +1995,13 @@ static int nf_tables_newrule(struct sock *nlsk, struct sk_buff *skb,
 
 	rule->handle = handle;
 	rule->dlen   = size;
-	rule->ulen   = ulen;
+	rule->udata  = ulen ? 1 : 0;
 
-	if (ulen)
-		nla_memcpy(nft_userdata(rule), nla[NFTA_RULE_USERDATA], ulen);
+	if (ulen) {
+		udata = nft_userdata(rule);
+		udata->len = ulen - 1;
+		nla_memcpy(udata->data, nla[NFTA_RULE_USERDATA], ulen);
+	}
 
 	expr = nft_expr_first(rule);
 	for (i = 0; i < n; i++) {
@@ -2031,12 +2048,6 @@ static int nf_tables_newrule(struct sock *nlsk, struct sk_buff *skb,
 
 err3:
 	list_del_rcu(&rule->list);
-	if (trans) {
-		list_del_rcu(&nft_trans_rule(trans)->list);
-		nft_rule_clear(net, nft_trans_rule(trans));
-		nft_trans_destroy(trans);
-		chain->use++;
-	}
 err2:
 	nf_tables_rule_destroy(&ctx, rule);
 err1:
@@ -3612,12 +3623,11 @@ static int nf_tables_commit(struct sk_buff *skb)
 						 &te->elem,
 						 NFT_MSG_DELSETELEM, 0);
 			te->set->ops->get(te->set, &te->elem);
-			te->set->ops->remove(te->set, &te->elem);
 			nft_data_uninit(&te->elem.key, NFT_DATA_VALUE);
-			if (te->elem.flags & NFT_SET_MAP) {
-				nft_data_uninit(&te->elem.data,
-						te->set->dtype);
-			}
+			if (te->set->flags & NFT_SET_MAP &&
+			    !(te->elem.flags & NFT_SET_ELEM_INTERVAL_END))
+				nft_data_uninit(&te->elem.data, te->set->dtype);
+			te->set->ops->remove(te->set, &te->elem);
 			nft_trans_destroy(trans);
 			break;
 		}
@@ -3658,7 +3668,7 @@ static int nf_tables_abort(struct sk_buff *skb)
 {
 	struct net *net = sock_net(skb->sk);
 	struct nft_trans *trans, *next;
-	struct nft_set *set;
+	struct nft_trans_elem *te;
 
 	list_for_each_entry_safe(trans, next, &net->nft.commit_list, list) {
 		switch (trans->msg_type) {
@@ -3719,9 +3729,13 @@ static int nf_tables_abort(struct sk_buff *skb)
 			break;
 		case NFT_MSG_NEWSETELEM:
 			nft_trans_elem_set(trans)->nelems--;
-			set = nft_trans_elem_set(trans);
-			set->ops->get(set, &nft_trans_elem(trans));
-			set->ops->remove(set, &nft_trans_elem(trans));
+			te = (struct nft_trans_elem *)trans->data;
+			te->set->ops->get(te->set, &te->elem);
+			nft_data_uninit(&te->elem.key, NFT_DATA_VALUE);
+			if (te->set->flags & NFT_SET_MAP &&
+			    !(te->elem.flags & NFT_SET_ELEM_INTERVAL_END))
+				nft_data_uninit(&te->elem.data, te->set->dtype);
+			te->set->ops->remove(te->set, &te->elem);
 			nft_trans_destroy(trans);
 			break;
 		case NFT_MSG_DELSETELEM:
diff --git a/net/netfilter/nf_tables_core.c b/net/netfilter/nf_tables_core.c
index 3b90eb2..2d298dc 100644
--- a/net/netfilter/nf_tables_core.c
+++ b/net/netfilter/nf_tables_core.c
@@ -94,10 +94,10 @@ static void nft_trace_packet(const struct nft_pktinfo *pkt,
 {
 	struct net *net = dev_net(pkt->in ? pkt->in : pkt->out);
 
-	nf_log_packet(net, pkt->xt.family, pkt->ops->hooknum, pkt->skb, pkt->in,
-		      pkt->out, &trace_loginfo, "TRACE: %s:%s:%s:%u ",
-		      chain->table->name, chain->name, comments[type],
-		      rulenum);
+	nf_log_trace(net, pkt->xt.family, pkt->ops->hooknum, pkt->skb, pkt->in,
+		     pkt->out, &trace_loginfo, "TRACE: %s:%s:%s:%u ",
+		     chain->table->name, chain->name, comments[type],
+		     rulenum);
 }
 
 unsigned int
diff --git a/net/netfilter/nfnetlink_cthelper.c b/net/netfilter/nfnetlink_cthelper.c
index a5599fc..54330fb 100644
--- a/net/netfilter/nfnetlink_cthelper.c
+++ b/net/netfilter/nfnetlink_cthelper.c
@@ -77,6 +77,9 @@ nfnl_cthelper_parse_tuple(struct nf_conntrack_tuple *tuple,
 	if (!tb[NFCTH_TUPLE_L3PROTONUM] || !tb[NFCTH_TUPLE_L4PROTONUM])
 		return -EINVAL;
 
+	/* Not all fields are initialized so first zero the tuple */
+	memset(tuple, 0, sizeof(struct nf_conntrack_tuple));
+
 	tuple->src.l3num = ntohs(nla_get_be16(tb[NFCTH_TUPLE_L3PROTONUM]));
 	tuple->dst.protonum = nla_get_u8(tb[NFCTH_TUPLE_L4PROTONUM]);
 
diff --git a/net/netfilter/nft_compat.c b/net/netfilter/nft_compat.c
index c598f74..65f3e2b 100644
--- a/net/netfilter/nft_compat.c
+++ b/net/netfilter/nft_compat.c
@@ -123,7 +123,7 @@ static void
 nft_target_set_tgchk_param(struct xt_tgchk_param *par,
 			   const struct nft_ctx *ctx,
 			   struct xt_target *target, void *info,
-			   union nft_entry *entry, u8 proto, bool inv)
+			   union nft_entry *entry, u16 proto, bool inv)
 {
 	par->net	= ctx->net;
 	par->table	= ctx->table->name;
@@ -133,11 +133,14 @@ nft_target_set_tgchk_param(struct xt_tgchk_param *par,
 		entry->e4.ip.invflags = inv ? IPT_INV_PROTO : 0;
 		break;
 	case AF_INET6:
+		if (proto)
+			entry->e6.ipv6.flags |= IP6T_F_PROTO;
+
 		entry->e6.ipv6.proto = proto;
 		entry->e6.ipv6.invflags = inv ? IP6T_INV_PROTO : 0;
 		break;
 	case NFPROTO_BRIDGE:
-		entry->ebt.ethproto = proto;
+		entry->ebt.ethproto = (__force __be16)proto;
 		entry->ebt.invflags = inv ? EBT_IPROTO : 0;
 		break;
 	}
@@ -171,7 +174,7 @@ static const struct nla_policy nft_rule_compat_policy[NFTA_RULE_COMPAT_MAX + 1]
 	[NFTA_RULE_COMPAT_FLAGS]	= { .type = NLA_U32 },
 };
 
-static int nft_parse_compat(const struct nlattr *attr, u8 *proto, bool *inv)
+static int nft_parse_compat(const struct nlattr *attr, u16 *proto, bool *inv)
 {
 	struct nlattr *tb[NFTA_RULE_COMPAT_MAX+1];
 	u32 flags;
@@ -203,7 +206,7 @@ nft_target_init(const struct nft_ctx *ctx, const struct nft_expr *expr,
 	struct xt_target *target = expr->ops->data;
 	struct xt_tgchk_param par;
 	size_t size = XT_ALIGN(nla_len(tb[NFTA_TARGET_INFO]));
-	u8 proto = 0;
+	u16 proto = 0;
 	bool inv = false;
 	union nft_entry e = {};
 	int ret;
@@ -334,7 +337,7 @@ static const struct nla_policy nft_match_policy[NFTA_MATCH_MAX + 1] = {
 static void
 nft_match_set_mtchk_param(struct xt_mtchk_param *par, const struct nft_ctx *ctx,
 			  struct xt_match *match, void *info,
-			  union nft_entry *entry, u8 proto, bool inv)
+			  union nft_entry *entry, u16 proto, bool inv)
 {
 	par->net	= ctx->net;
 	par->table	= ctx->table->name;
@@ -344,11 +347,14 @@ nft_match_set_mtchk_param(struct xt_mtchk_param *par, const struct nft_ctx *ctx,
 		entry->e4.ip.invflags = inv ? IPT_INV_PROTO : 0;
 		break;
 	case AF_INET6:
+		if (proto)
+			entry->e6.ipv6.flags |= IP6T_F_PROTO;
+
 		entry->e6.ipv6.proto = proto;
 		entry->e6.ipv6.invflags = inv ? IP6T_INV_PROTO : 0;
 		break;
 	case NFPROTO_BRIDGE:
-		entry->ebt.ethproto = proto;
+		entry->ebt.ethproto = (__force __be16)proto;
 		entry->ebt.invflags = inv ? EBT_IPROTO : 0;
 		break;
 	}
@@ -385,7 +391,7 @@ nft_match_init(const struct nft_ctx *ctx, const struct nft_expr *expr,
 	struct xt_match *match = expr->ops->data;
 	struct xt_mtchk_param par;
 	size_t size = XT_ALIGN(nla_len(tb[NFTA_MATCH_INFO]));
-	u8 proto = 0;
+	u16 proto = 0;
 	bool inv = false;
 	union nft_entry e = {};
 	int ret;
@@ -625,8 +631,12 @@ nft_match_select_ops(const struct nft_ctx *ctx,
 		struct xt_match *match = nft_match->ops.data;
 
 		if (strcmp(match->name, mt_name) == 0 &&
-		    match->revision == rev && match->family == family)
+		    match->revision == rev && match->family == family) {
+			if (!try_module_get(match->me))
+				return ERR_PTR(-ENOENT);
+
 			return &nft_match->ops;
+		}
 	}
 
 	match = xt_request_find_match(family, mt_name, rev);
@@ -695,8 +705,12 @@ nft_target_select_ops(const struct nft_ctx *ctx,
 		struct xt_target *target = nft_target->ops.data;
 
 		if (strcmp(target->name, tg_name) == 0 &&
-		    target->revision == rev && target->family == family)
+		    target->revision == rev && target->family == family) {
+			if (!try_module_get(target->me))
+				return ERR_PTR(-ENOENT);
+
 			return &nft_target->ops;
+		}
 	}
 
 	target = xt_request_find_target(family, tg_name, rev);
diff --git a/net/netfilter/nft_hash.c b/net/netfilter/nft_hash.c
index 61e6c40..37c15e6 100644
--- a/net/netfilter/nft_hash.c
+++ b/net/netfilter/nft_hash.c
@@ -153,6 +153,8 @@ static void nft_hash_walk(const struct nft_ctx *ctx, const struct nft_set *set,
 				iter->err = err;
 				goto out;
 			}
+
+			continue;
 		}
 
 		if (iter->count < iter->skip)
@@ -192,8 +194,6 @@ static int nft_hash_init(const struct nft_set *set,
 		.key_offset = offsetof(struct nft_hash_elem, key),
 		.key_len = set->klen,
 		.hashfn = jhash,
-		.grow_decision = rht_grow_above_75,
-		.shrink_decision = rht_shrink_below_30,
 	};
 
 	return rhashtable_init(priv, &params);
diff --git a/net/netfilter/xt_TPROXY.c b/net/netfilter/xt_TPROXY.c
index ef8a926..50e1e5a 100644
--- a/net/netfilter/xt_TPROXY.c
+++ b/net/netfilter/xt_TPROXY.c
@@ -513,8 +513,8 @@ static int tproxy_tg6_check(const struct xt_tgchk_param *par)
 {
 	const struct ip6t_ip6 *i = par->entryinfo;
 
-	if ((i->proto == IPPROTO_TCP || i->proto == IPPROTO_UDP)
-	    && !(i->flags & IP6T_INV_PROTO))
+	if ((i->proto == IPPROTO_TCP || i->proto == IPPROTO_UDP) &&
+	    !(i->invflags & IP6T_INV_PROTO))
 		return 0;
 
 	pr_info("Can be used only in combination with "
diff --git a/net/netfilter/xt_recent.c b/net/netfilter/xt_recent.c
index 30dbe34..45e1b30 100644
--- a/net/netfilter/xt_recent.c
+++ b/net/netfilter/xt_recent.c
@@ -378,12 +378,11 @@ static int recent_mt_check(const struct xt_mtchk_param *par,
 	mutex_lock(&recent_mutex);
 	t = recent_table_lookup(recent_net, info->name);
 	if (t != NULL) {
-		if (info->hit_count > t->nstamps_max_mask) {
-			pr_info("hitcount (%u) is larger than packets to be remembered (%u) for table %s\n",
-				info->hit_count, t->nstamps_max_mask + 1,
-				info->name);
-			ret = -EINVAL;
-			goto out;
+		if (nstamp_mask > t->nstamps_max_mask) {
+			spin_lock_bh(&recent_lock);
+			recent_table_flush(t);
+			t->nstamps_max_mask = nstamp_mask;
+			spin_unlock_bh(&recent_lock);
 		}
 
 		t->refcnt++;
diff --git a/net/netfilter/xt_socket.c b/net/netfilter/xt_socket.c
index 1ba6793..13332dbf 100644
--- a/net/netfilter/xt_socket.c
+++ b/net/netfilter/xt_socket.c
@@ -243,12 +243,13 @@ static int
 extract_icmp6_fields(const struct sk_buff *skb,
 		     unsigned int outside_hdrlen,
 		     int *protocol,
-		     struct in6_addr **raddr,
-		     struct in6_addr **laddr,
+		     const struct in6_addr **raddr,
+		     const struct in6_addr **laddr,
 		     __be16 *rport,
-		     __be16 *lport)
+		     __be16 *lport,
+		     struct ipv6hdr *ipv6_var)
 {
-	struct ipv6hdr *inside_iph, _inside_iph;
+	const struct ipv6hdr *inside_iph;
 	struct icmp6hdr *icmph, _icmph;
 	__be16 *ports, _ports[2];
 	u8 inside_nexthdr;
@@ -263,12 +264,14 @@ extract_icmp6_fields(const struct sk_buff *skb,
 	if (icmph->icmp6_type & ICMPV6_INFOMSG_MASK)
 		return 1;
 
-	inside_iph = skb_header_pointer(skb, outside_hdrlen + sizeof(_icmph), sizeof(_inside_iph), &_inside_iph);
+	inside_iph = skb_header_pointer(skb, outside_hdrlen + sizeof(_icmph),
+					sizeof(*ipv6_var), ipv6_var);
 	if (inside_iph == NULL)
 		return 1;
 	inside_nexthdr = inside_iph->nexthdr;
 
-	inside_hdrlen = ipv6_skip_exthdr(skb, outside_hdrlen + sizeof(_icmph) + sizeof(_inside_iph),
+	inside_hdrlen = ipv6_skip_exthdr(skb, outside_hdrlen + sizeof(_icmph) +
+					      sizeof(*ipv6_var),
 					 &inside_nexthdr, &inside_fragoff);
 	if (inside_hdrlen < 0)
 		return 1; /* hjm: Packet has no/incomplete transport layer headers. */
@@ -315,10 +318,10 @@ xt_socket_get_sock_v6(struct net *net, const u8 protocol,
 static bool
 socket_mt6_v1_v2(const struct sk_buff *skb, struct xt_action_param *par)
 {
-	struct ipv6hdr *iph = ipv6_hdr(skb);
+	struct ipv6hdr ipv6_var, *iph = ipv6_hdr(skb);
 	struct udphdr _hdr, *hp = NULL;
 	struct sock *sk = skb->sk;
-	struct in6_addr *daddr = NULL, *saddr = NULL;
+	const struct in6_addr *daddr = NULL, *saddr = NULL;
 	__be16 uninitialized_var(dport), uninitialized_var(sport);
 	int thoff = 0, uninitialized_var(tproto);
 	const struct xt_socket_mtinfo1 *info = (struct xt_socket_mtinfo1 *) par->matchinfo;
@@ -342,7 +345,7 @@ socket_mt6_v1_v2(const struct sk_buff *skb, struct xt_action_param *par)
 
 	} else if (tproto == IPPROTO_ICMPV6) {
 		if (extract_icmp6_fields(skb, thoff, &tproto, &saddr, &daddr,
-					 &sport, &dport))
+					 &sport, &dport, &ipv6_var))
 			return false;
 	} else {
 		return false;
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index 2702673..05919bf 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -3126,8 +3126,6 @@ static int __init netlink_proto_init(void)
 		.key_len = sizeof(u32), /* portid */
 		.hashfn = jhash,
 		.max_shift = 16, /* 64K */
-		.grow_decision = rht_grow_above_75,
-		.shrink_decision = rht_shrink_below_30,
 	};
 
 	if (err != 0)
diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c
index ae5e77c..5bae724 100644
--- a/net/openvswitch/datapath.c
+++ b/net/openvswitch/datapath.c
@@ -2194,14 +2194,55 @@ static int __net_init ovs_init_net(struct net *net)
 	return 0;
 }
 
-static void __net_exit ovs_exit_net(struct net *net)
+static void __net_exit list_vports_from_net(struct net *net, struct net *dnet,
+					    struct list_head *head)
 {
-	struct datapath *dp, *dp_next;
 	struct ovs_net *ovs_net = net_generic(net, ovs_net_id);
+	struct datapath *dp;
+
+	list_for_each_entry(dp, &ovs_net->dps, list_node) {
+		int i;
+
+		for (i = 0; i < DP_VPORT_HASH_BUCKETS; i++) {
+			struct vport *vport;
+
+			hlist_for_each_entry(vport, &dp->ports[i], dp_hash_node) {
+				struct netdev_vport *netdev_vport;
+
+				if (vport->ops->type != OVS_VPORT_TYPE_INTERNAL)
+					continue;
+
+				netdev_vport = netdev_vport_priv(vport);
+				if (dev_net(netdev_vport->dev) == dnet)
+					list_add(&vport->detach_list, head);
+			}
+		}
+	}
+}
+
+static void __net_exit ovs_exit_net(struct net *dnet)
+{
+	struct datapath *dp, *dp_next;
+	struct ovs_net *ovs_net = net_generic(dnet, ovs_net_id);
+	struct vport *vport, *vport_next;
+	struct net *net;
+	LIST_HEAD(head);
 
 	ovs_lock();
 	list_for_each_entry_safe(dp, dp_next, &ovs_net->dps, list_node)
 		__dp_destroy(dp);
+
+	rtnl_lock();
+	for_each_net(net)
+		list_vports_from_net(net, dnet, &head);
+	rtnl_unlock();
+
+	/* Detach all vports from given namespace. */
+	list_for_each_entry_safe(vport, vport_next, &head, detach_list) {
+		list_del(&vport->detach_list);
+		ovs_dp_detach_port(vport);
+	}
+
 	ovs_unlock();
 
 	cancel_work_sync(&ovs_net->dp_notify_work);
diff --git a/net/openvswitch/flow_netlink.c b/net/openvswitch/flow_netlink.c
index 216f20b..22b18c1 100644
--- a/net/openvswitch/flow_netlink.c
+++ b/net/openvswitch/flow_netlink.c
@@ -2253,14 +2253,20 @@ static int masked_set_action_to_set_action_attr(const struct nlattr *a,
 						struct sk_buff *skb)
 {
 	const struct nlattr *ovs_key = nla_data(a);
+	struct nlattr *nla;
 	size_t key_len = nla_len(ovs_key) / 2;
 
 	/* Revert the conversion we did from a non-masked set action to
 	 * masked set action.
 	 */
-	if (nla_put(skb, OVS_ACTION_ATTR_SET, nla_len(a) - key_len, ovs_key))
+	nla = nla_nest_start(skb, OVS_ACTION_ATTR_SET);
+	if (!nla)
 		return -EMSGSIZE;
 
+	if (nla_put(skb, nla_type(ovs_key), key_len, nla_data(ovs_key)))
+		return -EMSGSIZE;
+
+	nla_nest_end(skb, nla);
 	return 0;
 }
 
diff --git a/net/openvswitch/vport.c b/net/openvswitch/vport.c
index ec2954f..067a3ff 100644
--- a/net/openvswitch/vport.c
+++ b/net/openvswitch/vport.c
@@ -274,10 +274,8 @@ void ovs_vport_del(struct vport *vport)
 	ASSERT_OVSL();
 
 	hlist_del_rcu(&vport->hash_node);
-
-	vport->ops->destroy(vport);
-
 	module_put(vport->ops->owner);
+	vport->ops->destroy(vport);
 }
 
 /**
diff --git a/net/openvswitch/vport.h b/net/openvswitch/vport.h
index f8ae295..bc85331 100644
--- a/net/openvswitch/vport.h
+++ b/net/openvswitch/vport.h
@@ -103,6 +103,7 @@ struct vport_portids {
  * @ops: Class structure.
  * @percpu_stats: Points to per-CPU statistics used and maintained by vport
  * @err_stats: Points to error statistics used and maintained by vport
+ * @detach_list: list used for detaching vport in net-exit call.
  */
 struct vport {
 	struct rcu_head rcu;
@@ -117,6 +118,7 @@ struct vport {
 	struct pcpu_sw_netstats __percpu *percpu_stats;
 
 	struct vport_err_stats err_stats;
+	struct list_head detach_list;
 };
 
 /**
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index 9c28cec..f8db706 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -698,6 +698,10 @@ static void prb_retire_rx_blk_timer_expired(unsigned long data)
 
 	if (pkc->last_kactive_blk_num == pkc->kactive_blk_num) {
 		if (!frozen) {
+			if (!BLOCK_NUM_PKTS(pbd)) {
+				/* An empty block. Just refresh the timer. */
+				goto refresh_timer;
+			}
 			prb_retire_current_block(pkc, po, TP_STATUS_BLK_TMO);
 			if (!prb_dispatch_next_block(pkc, po))
 				goto refresh_timer;
@@ -798,7 +802,11 @@ static void prb_close_block(struct tpacket_kbdq_core *pkc1,
 		h1->ts_last_pkt.ts_sec = last_pkt->tp_sec;
 		h1->ts_last_pkt.ts_nsec	= last_pkt->tp_nsec;
 	} else {
-		/* Ok, we tmo'd - so get the current time */
+		/* Ok, we tmo'd - so get the current time.
+		 *
+		 * It shouldn't really happen as we don't close empty
+		 * blocks. See prb_retire_rx_blk_timer_expired().
+		 */
 		struct timespec ts;
 		getnstimeofday(&ts);
 		h1->ts_last_pkt.ts_sec = ts.tv_sec;
@@ -1349,14 +1357,14 @@ static int packet_rcv_fanout(struct sk_buff *skb, struct net_device *dev,
 		return 0;
 	}
 
+	if (fanout_has_flag(f, PACKET_FANOUT_FLAG_DEFRAG)) {
+		skb = ip_check_defrag(skb, IP_DEFRAG_AF_PACKET);
+		if (!skb)
+			return 0;
+	}
 	switch (f->type) {
 	case PACKET_FANOUT_HASH:
 	default:
-		if (fanout_has_flag(f, PACKET_FANOUT_FLAG_DEFRAG)) {
-			skb = ip_check_defrag(skb, IP_DEFRAG_AF_PACKET);
-			if (!skb)
-				return 0;
-		}
 		idx = fanout_demux_hash(f, skb, num);
 		break;
 	case PACKET_FANOUT_LB:
@@ -3115,11 +3123,18 @@ static int packet_dev_mc(struct net_device *dev, struct packet_mclist *i,
 	return 0;
 }
 
-static void packet_dev_mclist(struct net_device *dev, struct packet_mclist *i, int what)
+static void packet_dev_mclist_delete(struct net_device *dev,
+				     struct packet_mclist **mlp)
 {
-	for ( ; i; i = i->next) {
-		if (i->ifindex == dev->ifindex)
-			packet_dev_mc(dev, i, what);
+	struct packet_mclist *ml;
+
+	while ((ml = *mlp) != NULL) {
+		if (ml->ifindex == dev->ifindex) {
+			packet_dev_mc(dev, ml, -1);
+			*mlp = ml->next;
+			kfree(ml);
+		} else
+			mlp = &ml->next;
 	}
 }
 
@@ -3196,12 +3211,11 @@ static int packet_mc_drop(struct sock *sk, struct packet_mreq_max *mreq)
 					packet_dev_mc(dev, ml, -1);
 				kfree(ml);
 			}
-			rtnl_unlock();
-			return 0;
+			break;
 		}
 	}
 	rtnl_unlock();
-	return -EADDRNOTAVAIL;
+	return 0;
 }
 
 static void packet_flush_mclist(struct sock *sk)
@@ -3551,7 +3565,7 @@ static int packet_notifier(struct notifier_block *this,
 		switch (msg) {
 		case NETDEV_UNREGISTER:
 			if (po->mclist)
-				packet_dev_mclist(dev, po->mclist, -1);
+				packet_dev_mclist_delete(dev, &po->mclist);
 			/* fallthrough */
 
 		case NETDEV_DOWN:
diff --git a/net/rds/iw_rdma.c b/net/rds/iw_rdma.c
index a817705..dba8d08 100644
--- a/net/rds/iw_rdma.c
+++ b/net/rds/iw_rdma.c
@@ -88,7 +88,9 @@ static unsigned int rds_iw_unmap_fastreg_list(struct rds_iw_mr_pool *pool,
 			int *unpinned);
 static void rds_iw_destroy_fastreg(struct rds_iw_mr_pool *pool, struct rds_iw_mr *ibmr);
 
-static int rds_iw_get_device(struct rds_sock *rs, struct rds_iw_device **rds_iwdev, struct rdma_cm_id **cm_id)
+static int rds_iw_get_device(struct sockaddr_in *src, struct sockaddr_in *dst,
+			     struct rds_iw_device **rds_iwdev,
+			     struct rdma_cm_id **cm_id)
 {
 	struct rds_iw_device *iwdev;
 	struct rds_iw_cm_id *i_cm_id;
@@ -112,15 +114,15 @@ static int rds_iw_get_device(struct rds_sock *rs, struct rds_iw_device **rds_iwd
 				src_addr->sin_port,
 				dst_addr->sin_addr.s_addr,
 				dst_addr->sin_port,
-				rs->rs_bound_addr,
-				rs->rs_bound_port,
-				rs->rs_conn_addr,
-				rs->rs_conn_port);
+				src->sin_addr.s_addr,
+				src->sin_port,
+				dst->sin_addr.s_addr,
+				dst->sin_port);
 #ifdef WORKING_TUPLE_DETECTION
-			if (src_addr->sin_addr.s_addr == rs->rs_bound_addr &&
-			    src_addr->sin_port == rs->rs_bound_port &&
-			    dst_addr->sin_addr.s_addr == rs->rs_conn_addr &&
-			    dst_addr->sin_port == rs->rs_conn_port) {
+			if (src_addr->sin_addr.s_addr == src->sin_addr.s_addr &&
+			    src_addr->sin_port == src->sin_port &&
+			    dst_addr->sin_addr.s_addr == dst->sin_addr.s_addr &&
+			    dst_addr->sin_port == dst->sin_port) {
 #else
 			/* FIXME - needs to compare the local and remote
 			 * ipaddr/port tuple, but the ipaddr is the only
@@ -128,7 +130,7 @@ static int rds_iw_get_device(struct rds_sock *rs, struct rds_iw_device **rds_iwd
 			 * zero'ed.  It doesn't appear to be properly populated
 			 * during connection setup...
 			 */
-			if (src_addr->sin_addr.s_addr == rs->rs_bound_addr) {
+			if (src_addr->sin_addr.s_addr == src->sin_addr.s_addr) {
 #endif
 				spin_unlock_irq(&iwdev->spinlock);
 				*rds_iwdev = iwdev;
@@ -180,19 +182,13 @@ int rds_iw_update_cm_id(struct rds_iw_device *rds_iwdev, struct rdma_cm_id *cm_i
 {
 	struct sockaddr_in *src_addr, *dst_addr;
 	struct rds_iw_device *rds_iwdev_old;
-	struct rds_sock rs;
 	struct rdma_cm_id *pcm_id;
 	int rc;
 
 	src_addr = (struct sockaddr_in *)&cm_id->route.addr.src_addr;
 	dst_addr = (struct sockaddr_in *)&cm_id->route.addr.dst_addr;
 
-	rs.rs_bound_addr = src_addr->sin_addr.s_addr;
-	rs.rs_bound_port = src_addr->sin_port;
-	rs.rs_conn_addr = dst_addr->sin_addr.s_addr;
-	rs.rs_conn_port = dst_addr->sin_port;
-
-	rc = rds_iw_get_device(&rs, &rds_iwdev_old, &pcm_id);
+	rc = rds_iw_get_device(src_addr, dst_addr, &rds_iwdev_old, &pcm_id);
 	if (rc)
 		rds_iw_remove_cm_id(rds_iwdev, cm_id);
 
@@ -598,9 +594,17 @@ void *rds_iw_get_mr(struct scatterlist *sg, unsigned long nents,
 	struct rds_iw_device *rds_iwdev;
 	struct rds_iw_mr *ibmr = NULL;
 	struct rdma_cm_id *cm_id;
+	struct sockaddr_in src = {
+		.sin_addr.s_addr = rs->rs_bound_addr,
+		.sin_port = rs->rs_bound_port,
+	};
+	struct sockaddr_in dst = {
+		.sin_addr.s_addr = rs->rs_conn_addr,
+		.sin_port = rs->rs_conn_port,
+	};
 	int ret;
 
-	ret = rds_iw_get_device(rs, &rds_iwdev, &cm_id);
+	ret = rds_iw_get_device(&src, &dst, &rds_iwdev, &cm_id);
 	if (ret || !cm_id) {
 		ret = -ENODEV;
 		goto out;
diff --git a/net/rxrpc/ar-ack.c b/net/rxrpc/ar-ack.c
index c6be17a..e0547f5 100644
--- a/net/rxrpc/ar-ack.c
+++ b/net/rxrpc/ar-ack.c
@@ -218,7 +218,8 @@ static void rxrpc_resend(struct rxrpc_call *call)
 	struct rxrpc_header *hdr;
 	struct sk_buff *txb;
 	unsigned long *p_txb, resend_at;
-	int loop, stop;
+	bool stop;
+	int loop;
 	u8 resend;
 
 	_enter("{%d,%d,%d,%d},",
@@ -226,7 +227,7 @@ static void rxrpc_resend(struct rxrpc_call *call)
 	       atomic_read(&call->sequence),
 	       CIRC_CNT(call->acks_head, call->acks_tail, call->acks_winsz));
 
-	stop = 0;
+	stop = false;
 	resend = 0;
 	resend_at = 0;
 
@@ -255,11 +256,11 @@ static void rxrpc_resend(struct rxrpc_call *call)
 			_proto("Tx DATA %%%u { #%d }",
 			       ntohl(sp->hdr.serial), ntohl(sp->hdr.seq));
 			if (rxrpc_send_packet(call->conn->trans, txb) < 0) {
-				stop = 0;
+				stop = true;
 				sp->resend_at = jiffies + 3;
 			} else {
 				sp->resend_at =
-					jiffies + rxrpc_resend_timeout * HZ;
+					jiffies + rxrpc_resend_timeout;
 			}
 		}
 
diff --git a/net/rxrpc/ar-error.c b/net/rxrpc/ar-error.c
index 5394b6b..0610efa 100644
--- a/net/rxrpc/ar-error.c
+++ b/net/rxrpc/ar-error.c
@@ -42,7 +42,8 @@ void rxrpc_UDP_error_report(struct sock *sk)
 		_leave("UDP socket errqueue empty");
 		return;
 	}
-	if (!skb->len) {
+	serr = SKB_EXT_ERR(skb);
+	if (!skb->len && serr->ee.ee_origin == SO_EE_ORIGIN_TIMESTAMPING) {
 		_leave("UDP empty message");
 		kfree_skb(skb);
 		return;
@@ -50,7 +51,6 @@ void rxrpc_UDP_error_report(struct sock *sk)
 
 	rxrpc_new_skb(skb);
 
-	serr = SKB_EXT_ERR(skb);
 	addr = *(__be32 *)(skb_network_header(skb) + serr->addr_offset);
 	port = serr->port;
 
diff --git a/net/rxrpc/ar-recvmsg.c b/net/rxrpc/ar-recvmsg.c
index 4575485..19a5606 100644
--- a/net/rxrpc/ar-recvmsg.c
+++ b/net/rxrpc/ar-recvmsg.c
@@ -87,7 +87,7 @@ int rxrpc_recvmsg(struct kiocb *iocb, struct socket *sock,
 		if (!skb) {
 			/* nothing remains on the queue */
 			if (copied &&
-			    (msg->msg_flags & MSG_PEEK || timeo == 0))
+			    (flags & MSG_PEEK || timeo == 0))
 				goto out;
 
 			/* wait for a message to turn up */
diff --git a/net/sched/act_bpf.c b/net/sched/act_bpf.c
index 82c5d7f..5f6288f 100644
--- a/net/sched/act_bpf.c
+++ b/net/sched/act_bpf.c
@@ -25,21 +25,41 @@ static int tcf_bpf(struct sk_buff *skb, const struct tc_action *a,
 		   struct tcf_result *res)
 {
 	struct tcf_bpf *b = a->priv;
-	int action;
-	int filter_res;
+	int action, filter_res;
 
 	spin_lock(&b->tcf_lock);
+
 	b->tcf_tm.lastuse = jiffies;
 	bstats_update(&b->tcf_bstats, skb);
-	action = b->tcf_action;
 
 	filter_res = BPF_PROG_RUN(b->filter, skb);
-	if (filter_res == 0) {
-		/* Return code 0 from the BPF program
-		 * is being interpreted as a drop here.
-		 */
-		action = TC_ACT_SHOT;
+
+	/* A BPF program may overwrite the default action opcode.
+	 * Similarly as in cls_bpf, if filter_res == -1 we use the
+	 * default action specified from tc.
+	 *
+	 * In case a different well-known TC_ACT opcode has been
+	 * returned, it will overwrite the default one.
+	 *
+	 * For everything else that is unkown, TC_ACT_UNSPEC is
+	 * returned.
+	 */
+	switch (filter_res) {
+	case TC_ACT_PIPE:
+	case TC_ACT_RECLASSIFY:
+	case TC_ACT_OK:
+		action = filter_res;
+		break;
+	case TC_ACT_SHOT:
+		action = filter_res;
 		b->tcf_qstats.drops++;
+		break;
+	case TC_ACT_UNSPEC:
+		action = b->tcf_action;
+		break;
+	default:
+		action = TC_ACT_UNSPEC;
+		break;
 	}
 
 	spin_unlock(&b->tcf_lock);
diff --git a/net/sched/cls_u32.c b/net/sched/cls_u32.c
index 09487af..95fdf4e 100644
--- a/net/sched/cls_u32.c
+++ b/net/sched/cls_u32.c
@@ -78,8 +78,11 @@ struct tc_u_hnode {
 	struct tc_u_common	*tp_c;
 	int			refcnt;
 	unsigned int		divisor;
-	struct tc_u_knode __rcu	*ht[1];
 	struct rcu_head		rcu;
+	/* The 'ht' field MUST be the last field in structure to allow for
+	 * more entries allocated at end of structure.
+	 */
+	struct tc_u_knode __rcu	*ht[1];
 };
 
 struct tc_u_common {
diff --git a/net/sched/ematch.c b/net/sched/ematch.c
index 6742200..fbb7ebf 100644
--- a/net/sched/ematch.c
+++ b/net/sched/ematch.c
@@ -228,6 +228,7 @@ static int tcf_em_validate(struct tcf_proto *tp,
 				 * to replay the request.
 				 */
 				module_put(em->ops->owner);
+				em->ops = NULL;
 				err = -EAGAIN;
 			}
 #endif
diff --git a/net/socket.c b/net/socket.c
index bbedbfc..245330c 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -1702,6 +1702,8 @@ SYSCALL_DEFINE6(sendto, int, fd, void __user *, buff, size_t, len,
 
 	if (len > INT_MAX)
 		len = INT_MAX;
+	if (unlikely(!access_ok(VERIFY_READ, buff, len)))
+		return -EFAULT;
 	sock = sockfd_lookup_light(fd, &err, &fput_needed);
 	if (!sock)
 		goto out;
@@ -1760,6 +1762,8 @@ SYSCALL_DEFINE6(recvfrom, int, fd, void __user *, ubuf, size_t, size,
 
 	if (size > INT_MAX)
 		size = INT_MAX;
+	if (unlikely(!access_ok(VERIFY_WRITE, ubuf, size)))
+		return -EFAULT;
 	sock = sockfd_lookup_light(fd, &err, &fput_needed);
 	if (!sock)
 		goto out;
diff --git a/net/sunrpc/auth_gss/gss_rpc_upcall.c b/net/sunrpc/auth_gss/gss_rpc_upcall.c
index abbb7dc..59eeed4 100644
--- a/net/sunrpc/auth_gss/gss_rpc_upcall.c
+++ b/net/sunrpc/auth_gss/gss_rpc_upcall.c
@@ -217,6 +217,8 @@ static void gssp_free_receive_pages(struct gssx_arg_accept_sec_context *arg)
 
 	for (i = 0; i < arg->npages && arg->pages[i]; i++)
 		__free_page(arg->pages[i]);
+
+	kfree(arg->pages);
 }
 
 static int gssp_alloc_receive_pages(struct gssx_arg_accept_sec_context *arg)
diff --git a/net/sunrpc/auth_gss/svcauth_gss.c b/net/sunrpc/auth_gss/svcauth_gss.c
index 224a82f..1095be9 100644
--- a/net/sunrpc/auth_gss/svcauth_gss.c
+++ b/net/sunrpc/auth_gss/svcauth_gss.c
@@ -463,6 +463,8 @@ static int rsc_parse(struct cache_detail *cd,
 		/* number of additional gid's */
 		if (get_int(&mesg, &N))
 			goto out;
+		if (N < 0 || N > NGROUPS_MAX)
+			goto out;
 		status = -ENOMEM;
 		rsci.cred.cr_group_info = groups_alloc(N);
 		if (rsci.cred.cr_group_info == NULL)
diff --git a/net/sunrpc/cache.c b/net/sunrpc/cache.c
index 33fb105..5199bb1 100644
--- a/net/sunrpc/cache.c
+++ b/net/sunrpc/cache.c
@@ -921,7 +921,7 @@ static unsigned int cache_poll(struct file *filp, poll_table *wait,
 	poll_wait(filp, &queue_wait, wait);
 
 	/* alway allow write */
-	mask = POLL_OUT | POLLWRNORM;
+	mask = POLLOUT | POLLWRNORM;
 
 	if (!rp)
 		return mask;
diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index 612aa73..e6ce151 100644
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -303,9 +303,7 @@ static int rpc_client_register(struct rpc_clnt *clnt,
 	struct super_block *pipefs_sb;
 	int err;
 
-	err = rpc_clnt_debugfs_register(clnt);
-	if (err)
-		return err;
+	rpc_clnt_debugfs_register(clnt);
 
 	pipefs_sb = rpc_get_sb_net(net);
 	if (pipefs_sb) {
diff --git a/net/sunrpc/debugfs.c b/net/sunrpc/debugfs.c
index e811f39..82962f7 100644
--- a/net/sunrpc/debugfs.c
+++ b/net/sunrpc/debugfs.c
@@ -129,48 +129,52 @@ static const struct file_operations tasks_fops = {
 	.release	= tasks_release,
 };
 
-int
+void
 rpc_clnt_debugfs_register(struct rpc_clnt *clnt)
 {
-	int len, err;
+	int len;
 	char name[24]; /* enough for "../../rpc_xprt/ + 8 hex digits + NULL */
+	struct rpc_xprt *xprt;
 
 	/* Already registered? */
-	if (clnt->cl_debugfs)
-		return 0;
+	if (clnt->cl_debugfs || !rpc_clnt_dir)
+		return;
 
 	len = snprintf(name, sizeof(name), "%x", clnt->cl_clid);
 	if (len >= sizeof(name))
-		return -EINVAL;
+		return;
 
 	/* make the per-client dir */
 	clnt->cl_debugfs = debugfs_create_dir(name, rpc_clnt_dir);
 	if (!clnt->cl_debugfs)
-		return -ENOMEM;
+		return;
 
 	/* make tasks file */
-	err = -ENOMEM;
 	if (!debugfs_create_file("tasks", S_IFREG | S_IRUSR, clnt->cl_debugfs,
 				 clnt, &tasks_fops))
 		goto out_err;
 
-	err = -EINVAL;
 	rcu_read_lock();
+	xprt = rcu_dereference(clnt->cl_xprt);
+	/* no "debugfs" dentry? Don't bother with the symlink. */
+	if (!xprt->debugfs) {
+		rcu_read_unlock();
+		return;
+	}
 	len = snprintf(name, sizeof(name), "../../rpc_xprt/%s",
-			rcu_dereference(clnt->cl_xprt)->debugfs->d_name.name);
+			xprt->debugfs->d_name.name);
 	rcu_read_unlock();
+
 	if (len >= sizeof(name))
 		goto out_err;
 
-	err = -ENOMEM;
 	if (!debugfs_create_symlink("xprt", clnt->cl_debugfs, name))
 		goto out_err;
 
-	return 0;
+	return;
 out_err:
 	debugfs_remove_recursive(clnt->cl_debugfs);
 	clnt->cl_debugfs = NULL;
-	return err;
 }
 
 void
@@ -226,33 +230,33 @@ static const struct file_operations xprt_info_fops = {
 	.release	= xprt_info_release,
 };
 
-int
+void
 rpc_xprt_debugfs_register(struct rpc_xprt *xprt)
 {
 	int len, id;
 	static atomic_t	cur_id;
 	char		name[9]; /* 8 hex digits + NULL term */
 
+	if (!rpc_xprt_dir)
+		return;
+
 	id = (unsigned int)atomic_inc_return(&cur_id);
 
 	len = snprintf(name, sizeof(name), "%x", id);
 	if (len >= sizeof(name))
-		return -EINVAL;
+		return;
 
 	/* make the per-client dir */
 	xprt->debugfs = debugfs_create_dir(name, rpc_xprt_dir);
 	if (!xprt->debugfs)
-		return -ENOMEM;
+		return;
 
 	/* make tasks file */
 	if (!debugfs_create_file("info", S_IFREG | S_IRUSR, xprt->debugfs,
 				 xprt, &xprt_info_fops)) {
 		debugfs_remove_recursive(xprt->debugfs);
 		xprt->debugfs = NULL;
-		return -ENOMEM;
 	}
-
-	return 0;
 }
 
 void
@@ -266,14 +270,17 @@ void __exit
 sunrpc_debugfs_exit(void)
 {
 	debugfs_remove_recursive(topdir);
+	topdir = NULL;
+	rpc_clnt_dir = NULL;
+	rpc_xprt_dir = NULL;
 }
 
-int __init
+void __init
 sunrpc_debugfs_init(void)
 {
 	topdir = debugfs_create_dir("sunrpc", NULL);
 	if (!topdir)
-		goto out;
+		return;
 
 	rpc_clnt_dir = debugfs_create_dir("rpc_clnt", topdir);
 	if (!rpc_clnt_dir)
@@ -283,10 +290,9 @@ sunrpc_debugfs_init(void)
 	if (!rpc_xprt_dir)
 		goto out_remove;
 
-	return 0;
+	return;
 out_remove:
 	debugfs_remove_recursive(topdir);
 	topdir = NULL;
-out:
-	return -ENOMEM;
+	rpc_clnt_dir = NULL;
 }
diff --git a/net/sunrpc/sunrpc_syms.c b/net/sunrpc/sunrpc_syms.c
index e37fbed..ee5d3d2 100644
--- a/net/sunrpc/sunrpc_syms.c
+++ b/net/sunrpc/sunrpc_syms.c
@@ -98,10 +98,7 @@ init_sunrpc(void)
 	if (err)
 		goto out4;
 
-	err = sunrpc_debugfs_init();
-	if (err)
-		goto out5;
-
+	sunrpc_debugfs_init();
 #if IS_ENABLED(CONFIG_SUNRPC_DEBUG)
 	rpc_register_sysctl();
 #endif
@@ -109,8 +106,6 @@ init_sunrpc(void)
 	init_socket_xprt();	/* clnt sock transport */
 	return 0;
 
-out5:
-	unregister_rpc_pipefs();
 out4:
 	unregister_pernet_subsys(&sunrpc_net_ops);
 out3:
diff --git a/net/sunrpc/xprt.c b/net/sunrpc/xprt.c
index e3015ae..9949722 100644
--- a/net/sunrpc/xprt.c
+++ b/net/sunrpc/xprt.c
@@ -1331,7 +1331,6 @@ static void xprt_init(struct rpc_xprt *xprt, struct net *net)
  */
 struct rpc_xprt *xprt_create_transport(struct xprt_create *args)
 {
-	int err;
 	struct rpc_xprt	*xprt;
 	struct xprt_class *t;
 
@@ -1372,11 +1371,7 @@ found:
 		return ERR_PTR(-ENOMEM);
 	}
 
-	err = rpc_xprt_debugfs_register(xprt);
-	if (err) {
-		xprt_destroy(xprt);
-		return ERR_PTR(err);
-	}
+	rpc_xprt_debugfs_register(xprt);
 
 	dprintk("RPC:       created transport %p with %u slots\n", xprt,
 			xprt->max_reqs);
diff --git a/net/sunrpc/xprtrdma/rpc_rdma.c b/net/sunrpc/xprtrdma/rpc_rdma.c
index 7e9acd9..91ffde8 100644
--- a/net/sunrpc/xprtrdma/rpc_rdma.c
+++ b/net/sunrpc/xprtrdma/rpc_rdma.c
@@ -738,8 +738,9 @@ rpcrdma_reply_handler(struct rpcrdma_rep *rep)
 	struct rpc_xprt *xprt = rep->rr_xprt;
 	struct rpcrdma_xprt *r_xprt = rpcx_to_rdmax(xprt);
 	__be32 *iptr;
-	int credits, rdmalen, status;
+	int rdmalen, status;
 	unsigned long cwnd;
+	u32 credits;
 
 	/* Check status. If bad, signal disconnect and return rep to pool */
 	if (rep->rr_len == ~0U) {
diff --git a/net/sunrpc/xprtrdma/xprt_rdma.h b/net/sunrpc/xprtrdma/xprt_rdma.h
index d1b7039..0a16fb6 100644
--- a/net/sunrpc/xprtrdma/xprt_rdma.h
+++ b/net/sunrpc/xprtrdma/xprt_rdma.h
@@ -285,7 +285,7 @@ rpcr_to_rdmar(struct rpc_rqst *rqst)
  */
 struct rpcrdma_buffer {
 	spinlock_t	rb_lock;	/* protects indexes */
-	int		rb_max_requests;/* client max requests */
+	u32		rb_max_requests;/* client max requests */
 	struct list_head rb_mws;	/* optional memory windows/fmrs/frmrs */
 	struct list_head rb_all;
 	int		rb_send_index;
diff --git a/net/tipc/core.c b/net/tipc/core.c
index 935205e..be1c9fa 100644
--- a/net/tipc/core.c
+++ b/net/tipc/core.c
@@ -152,11 +152,11 @@ out_netlink:
 static void __exit tipc_exit(void)
 {
 	tipc_bearer_cleanup();
+	unregister_pernet_subsys(&tipc_net_ops);
 	tipc_netlink_stop();
 	tipc_netlink_compat_stop();
 	tipc_socket_stop();
 	tipc_unregister_sysctl();
-	unregister_pernet_subsys(&tipc_net_ops);
 
 	pr_info("Deactivated\n");
 }
diff --git a/net/tipc/link.c b/net/tipc/link.c
index a4cf3643..14f09b3 100644
--- a/net/tipc/link.c
+++ b/net/tipc/link.c
@@ -464,10 +464,11 @@ void tipc_link_reset(struct tipc_link *l_ptr)
 	/* Clean up all queues, except inputq: */
 	__skb_queue_purge(&l_ptr->outqueue);
 	__skb_queue_purge(&l_ptr->deferred_queue);
-	skb_queue_splice_init(&l_ptr->wakeupq, &l_ptr->inputq);
-	if (!skb_queue_empty(&l_ptr->inputq))
+	if (!owner->inputq)
+		owner->inputq = &l_ptr->inputq;
+	skb_queue_splice_init(&l_ptr->wakeupq, owner->inputq);
+	if (!skb_queue_empty(owner->inputq))
 		owner->action_flags |= TIPC_MSG_EVT;
-	owner->inputq = &l_ptr->inputq;
 	l_ptr->next_out = NULL;
 	l_ptr->unacked_window = 0;
 	l_ptr->checkpoint = 1;
diff --git a/net/tipc/socket.c b/net/tipc/socket.c
index f73e975..b4d4467 100644
--- a/net/tipc/socket.c
+++ b/net/tipc/socket.c
@@ -2364,8 +2364,6 @@ int tipc_sk_rht_init(struct net *net)
 		.hashfn = jhash,
 		.max_shift = 20, /* 1M */
 		.min_shift = 8,  /* 256 */
-		.grow_decision = rht_grow_above_75,
-		.shrink_decision = rht_shrink_below_30,
 	};
 
 	return rhashtable_init(&tn->sk_rht, &rht_params);
diff --git a/net/wireless/core.c b/net/wireless/core.c
index 3af0ecf..2a0bbd2 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -1199,6 +1199,7 @@ out_fail_wq:
 	regulatory_exit();
 out_fail_reg:
 	debugfs_remove(ieee80211_debugfs_dir);
+	nl80211_exit();
 out_fail_nl80211:
 	unregister_netdevice_notifier(&cfg80211_netdev_notifier);
 out_fail_notifier:
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index d78fd8b..b6f84f6 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -2654,10 +2654,6 @@ static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
 			return err;
 	}
 
-	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
-	if (!msg)
-		return -ENOMEM;
-
 	err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
 				  info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
 				  &flags);
@@ -2666,6 +2662,10 @@ static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
 	    !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
 		return -EOPNOTSUPP;
 
+	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
+	if (!msg)
+		return -ENOMEM;
+
 	wdev = rdev_add_virtual_intf(rdev,
 				nla_data(info->attrs[NL80211_ATTR_IFNAME]),
 				type, err ? NULL : &flags, &params);
@@ -4400,6 +4400,16 @@ static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
 	if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
 		return -EINVAL;
 
+	/* HT/VHT requires QoS, but if we don't have that just ignore HT/VHT
+	 * as userspace might just pass through the capabilities from the IEs
+	 * directly, rather than enforcing this restriction and returning an
+	 * error in this case.
+	 */
+	if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME))) {
+		params.ht_capa = NULL;
+		params.vht_capa = NULL;
+	}
+
 	/* When you run into this, adjust the code below for the new flag */
 	BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
 
@@ -12528,9 +12538,7 @@ static int cfg80211_net_detect_results(struct sk_buff *msg,
 			}
 
 			for (j = 0; j < match->n_channels; j++) {
-				if (nla_put_u32(msg,
-						NL80211_ATTR_WIPHY_FREQ,
-						match->channels[j])) {
+				if (nla_put_u32(msg, j, match->channels[j])) {
 					nla_nest_cancel(msg, nl_freqs);
 					nla_nest_cancel(msg, nl_match);
 					goto out;
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index b586d0d..48dfc7b 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -228,7 +228,7 @@ static DECLARE_DELAYED_WORK(reg_timeout, reg_timeout_work);
 
 /* We keep a static world regulatory domain in case of the absence of CRDA */
 static const struct ieee80211_regdomain world_regdom = {
-	.n_reg_rules = 6,
+	.n_reg_rules = 8,
 	.alpha2 =  "00",
 	.reg_rules = {
 		/* IEEE 802.11b/g, channels 1..11 */
diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index cee479b..638af06 100644
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -2269,11 +2269,9 @@ struct dst_entry *xfrm_lookup(struct net *net, struct dst_entry *dst_orig,
 		 * have the xfrm_state's. We need to wait for KM to
 		 * negotiate new SA's or bail out with error.*/
 		if (net->xfrm.sysctl_larval_drop) {
-			dst_release(dst);
-			xfrm_pols_put(pols, drop_pols);
 			XFRM_INC_STATS(net, LINUX_MIB_XFRMOUTNOSTATES);
-
-			return ERR_PTR(-EREMOTE);
+			err = -EREMOTE;
+			goto error;
 		}
 
 		err = -EAGAIN;
@@ -2324,7 +2322,8 @@ nopol:
 error:
 	dst_release(dst);
 dropdst:
-	dst_release(dst_orig);
+	if (!(flags & XFRM_LOOKUP_KEEP_DST_REF))
+		dst_release(dst_orig);
 	xfrm_pols_put(pols, drop_pols);
 	return ERR_PTR(err);
 }
@@ -2338,7 +2337,8 @@ struct dst_entry *xfrm_lookup_route(struct net *net, struct dst_entry *dst_orig,
 				    struct sock *sk, int flags)
 {
 	struct dst_entry *dst = xfrm_lookup(net, dst_orig, fl, sk,
-					    flags | XFRM_LOOKUP_QUEUE);
+					    flags | XFRM_LOOKUP_QUEUE |
+					    XFRM_LOOKUP_KEEP_DST_REF);
 
 	if (IS_ERR(dst) && PTR_ERR(dst) == -EREMOTE)
 		return make_blackhole(net, dst_orig->ops->family, dst_orig);
diff --git a/samples/kobject/kobject-example.c b/samples/kobject/kobject-example.c
index 01562e0..2e0740f 100644
--- a/samples/kobject/kobject-example.c
+++ b/samples/kobject/kobject-example.c
@@ -36,7 +36,12 @@ static ssize_t foo_show(struct kobject *kobj, struct kobj_attribute *attr,
 static ssize_t foo_store(struct kobject *kobj, struct kobj_attribute *attr,
 			 const char *buf, size_t count)
 {
-	sscanf(buf, "%du", &foo);
+	int ret;
+
+	ret = kstrtoint(buf, 10, &foo);
+	if (ret < 0)
+		return ret;
+
 	return count;
 }
 
@@ -63,9 +68,12 @@ static ssize_t b_show(struct kobject *kobj, struct kobj_attribute *attr,
 static ssize_t b_store(struct kobject *kobj, struct kobj_attribute *attr,
 		       const char *buf, size_t count)
 {
-	int var;
+	int var, ret;
+
+	ret = kstrtoint(buf, 10, &var);
+	if (ret < 0)
+		return ret;
 
-	sscanf(buf, "%du", &var);
 	if (strcmp(attr->attr.name, "baz") == 0)
 		baz = var;
 	else
@@ -134,5 +142,5 @@ static void __exit example_exit(void)
 
 module_init(example_init);
 module_exit(example_exit);
-MODULE_LICENSE("GPL");
+MODULE_LICENSE("GPL v2");
 MODULE_AUTHOR("Greg Kroah-Hartman <greg@kroah.com>");
diff --git a/samples/kobject/kset-example.c b/samples/kobject/kset-example.c
index ab5e447..a55bff5 100644
--- a/samples/kobject/kset-example.c
+++ b/samples/kobject/kset-example.c
@@ -120,7 +120,12 @@ static ssize_t foo_show(struct foo_obj *foo_obj, struct foo_attribute *attr,
 static ssize_t foo_store(struct foo_obj *foo_obj, struct foo_attribute *attr,
 			 const char *buf, size_t count)
 {
-	sscanf(buf, "%du", &foo_obj->foo);
+	int ret;
+
+	ret = kstrtoint(buf, 10, &foo_obj->foo);
+	if (ret < 0)
+		return ret;
+
 	return count;
 }
 
@@ -147,9 +152,12 @@ static ssize_t b_show(struct foo_obj *foo_obj, struct foo_attribute *attr,
 static ssize_t b_store(struct foo_obj *foo_obj, struct foo_attribute *attr,
 		       const char *buf, size_t count)
 {
-	int var;
+	int var, ret;
+
+	ret = kstrtoint(buf, 10, &var);
+	if (ret < 0)
+		return ret;
 
-	sscanf(buf, "%du", &var);
 	if (strcmp(attr->attr.name, "baz") == 0)
 		foo_obj->baz = var;
 	else
@@ -277,5 +285,5 @@ static void __exit example_exit(void)
 
 module_init(example_init);
 module_exit(example_exit);
-MODULE_LICENSE("GPL");
+MODULE_LICENSE("GPL v2");
 MODULE_AUTHOR("Greg Kroah-Hartman <greg@kroah.com>");
diff --git a/scripts/gdb/linux/__init__.py b/scripts/gdb/linux/__init__.py
new file mode 100644
index 0000000..4680fb1
--- /dev/null
+++ b/scripts/gdb/linux/__init__.py
@@ -0,0 +1 @@
+# nothing to do for the initialization of this package
diff --git a/security/selinux/selinuxfs.c b/security/selinux/selinuxfs.c
index 1684bcc..5fde343 100644
--- a/security/selinux/selinuxfs.c
+++ b/security/selinux/selinuxfs.c
@@ -152,7 +152,7 @@ static ssize_t sel_write_enforce(struct file *file, const char __user *buf,
 		goto out;
 
 	/* No partial writes. */
-	length = EINVAL;
+	length = -EINVAL;
 	if (*ppos != 0)
 		goto out;
 
diff --git a/sound/core/control.c b/sound/core/control.c
index 35324a8..eeb691d 100644
--- a/sound/core/control.c
+++ b/sound/core/control.c
@@ -1170,6 +1170,10 @@ static int snd_ctl_elem_add(struct snd_ctl_file *file,
 
 	if (info->count < 1)
 		return -EINVAL;
+	if (!*info->id.name)
+		return -EINVAL;
+	if (strnlen(info->id.name, sizeof(info->id.name)) >= sizeof(info->id.name))
+		return -EINVAL;
 	access = info->access == 0 ? SNDRV_CTL_ELEM_ACCESS_READWRITE :
 		(info->access & (SNDRV_CTL_ELEM_ACCESS_READWRITE|
 				 SNDRV_CTL_ELEM_ACCESS_INACTIVE|
diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c
index b03a638..279e24f 100644
--- a/sound/core/pcm_native.c
+++ b/sound/core/pcm_native.c
@@ -1552,6 +1552,8 @@ static int snd_pcm_do_drain_init(struct snd_pcm_substream *substream, int state)
 			if (! snd_pcm_playback_empty(substream)) {
 				snd_pcm_do_start(substream, SNDRV_PCM_STATE_DRAINING);
 				snd_pcm_post_start(substream, SNDRV_PCM_STATE_DRAINING);
+			} else {
+				runtime->status->state = SNDRV_PCM_STATE_SETUP;
 			}
 			break;
 		case SNDRV_PCM_STATE_RUNNING:
diff --git a/sound/drivers/opl3/opl3_midi.c b/sound/drivers/opl3/opl3_midi.c
index f62780e..7821b07 100644
--- a/sound/drivers/opl3/opl3_midi.c
+++ b/sound/drivers/opl3/opl3_midi.c
@@ -105,6 +105,8 @@ static void snd_opl3_calc_pitch(unsigned char *fnum, unsigned char *blocknum,
 		int pitchbend = chan->midi_pitchbend;
 		int segment;
 
+		if (pitchbend < -0x2000)
+			pitchbend = -0x2000;
 		if (pitchbend > 0x1FFF)
 			pitchbend = 0x1FFF;
 
diff --git a/sound/firewire/amdtp.c b/sound/firewire/amdtp.c
index 0d58018..5cc356d 100644
--- a/sound/firewire/amdtp.c
+++ b/sound/firewire/amdtp.c
@@ -33,7 +33,7 @@
  */
 #define MAX_MIDI_RX_BLOCKS	8
 
-#define TRANSFER_DELAY_TICKS	0x2e00 /* 479.17 µs */
+#define TRANSFER_DELAY_TICKS	0x2e00 /* 479.17 microseconds */
 
 /* isochronous header parameters */
 #define ISO_DATA_LENGTH_SHIFT	16
@@ -78,7 +78,7 @@ static void pcm_period_tasklet(unsigned long data);
 int amdtp_stream_init(struct amdtp_stream *s, struct fw_unit *unit,
 		      enum amdtp_stream_direction dir, enum cip_flags flags)
 {
-	s->unit = fw_unit_get(unit);
+	s->unit = unit;
 	s->direction = dir;
 	s->flags = flags;
 	s->context = ERR_PTR(-1);
@@ -102,7 +102,6 @@ void amdtp_stream_destroy(struct amdtp_stream *s)
 {
 	WARN_ON(amdtp_stream_running(s));
 	mutex_destroy(&s->mutex);
-	fw_unit_put(s->unit);
 }
 EXPORT_SYMBOL(amdtp_stream_destroy);
 
diff --git a/sound/firewire/bebob/bebob.c b/sound/firewire/bebob/bebob.c
index fc19c99..611b7da 100644
--- a/sound/firewire/bebob/bebob.c
+++ b/sound/firewire/bebob/bebob.c
@@ -116,11 +116,22 @@ end:
 	return err;
 }
 
+/*
+ * This module releases the FireWire unit data after all ALSA character devices
+ * are released by applications. This is for releasing stream data or finishing
+ * transactions safely. Thus at returning from .remove(), this module still keep
+ * references for the unit.
+ */
 static void
 bebob_card_free(struct snd_card *card)
 {
 	struct snd_bebob *bebob = card->private_data;
 
+	snd_bebob_stream_destroy_duplex(bebob);
+	fw_unit_put(bebob->unit);
+
+	kfree(bebob->maudio_special_quirk);
+
 	if (bebob->card_index >= 0) {
 		mutex_lock(&devices_mutex);
 		clear_bit(bebob->card_index, devices_used);
@@ -205,7 +216,7 @@ bebob_probe(struct fw_unit *unit,
 	card->private_free = bebob_card_free;
 
 	bebob->card = card;
-	bebob->unit = unit;
+	bebob->unit = fw_unit_get(unit);
 	bebob->spec = spec;
 	mutex_init(&bebob->mutex);
 	spin_lock_init(&bebob->lock);
@@ -306,10 +317,11 @@ static void bebob_remove(struct fw_unit *unit)
 	if (bebob == NULL)
 		return;
 
-	kfree(bebob->maudio_special_quirk);
+	/* Awake bus-reset waiters. */
+	if (!completion_done(&bebob->bus_reset))
+		complete_all(&bebob->bus_reset);
 
-	snd_bebob_stream_destroy_duplex(bebob);
-	snd_card_disconnect(bebob->card);
+	/* No need to wait for releasing card object in this context. */
 	snd_card_free_when_closed(bebob->card);
 }
 
diff --git a/sound/firewire/bebob/bebob_maudio.c b/sound/firewire/bebob/bebob_maudio.c
index a422aaa..9ee25a6 100644
--- a/sound/firewire/bebob/bebob_maudio.c
+++ b/sound/firewire/bebob/bebob_maudio.c
@@ -96,10 +96,10 @@ int snd_bebob_maudio_load_firmware(struct fw_unit *unit)
 	struct fw_device *device = fw_parent_device(unit);
 	int err, rcode;
 	u64 date;
-	__be32 cues[3] = {
-		MAUDIO_BOOTLOADER_CUE1,
-		MAUDIO_BOOTLOADER_CUE2,
-		MAUDIO_BOOTLOADER_CUE3
+	__le32 cues[3] = {
+		cpu_to_le32(MAUDIO_BOOTLOADER_CUE1),
+		cpu_to_le32(MAUDIO_BOOTLOADER_CUE2),
+		cpu_to_le32(MAUDIO_BOOTLOADER_CUE3)
 	};
 
 	/* check date of software used to build */
diff --git a/sound/firewire/bebob/bebob_stream.c b/sound/firewire/bebob/bebob_stream.c
index 0ebcabf..98e4fc8 100644
--- a/sound/firewire/bebob/bebob_stream.c
+++ b/sound/firewire/bebob/bebob_stream.c
@@ -410,8 +410,6 @@ break_both_connections(struct snd_bebob *bebob)
 static void
 destroy_both_connections(struct snd_bebob *bebob)
 {
-	break_both_connections(bebob);
-
 	cmp_connection_destroy(&bebob->in_conn);
 	cmp_connection_destroy(&bebob->out_conn);
 }
@@ -712,22 +710,16 @@ void snd_bebob_stream_update_duplex(struct snd_bebob *bebob)
 	mutex_unlock(&bebob->mutex);
 }
 
+/*
+ * This function should be called before starting streams or after stopping
+ * streams.
+ */
 void snd_bebob_stream_destroy_duplex(struct snd_bebob *bebob)
 {
-	mutex_lock(&bebob->mutex);
-
-	amdtp_stream_pcm_abort(&bebob->rx_stream);
-	amdtp_stream_pcm_abort(&bebob->tx_stream);
-
-	amdtp_stream_stop(&bebob->rx_stream);
-	amdtp_stream_stop(&bebob->tx_stream);
-
 	amdtp_stream_destroy(&bebob->rx_stream);
 	amdtp_stream_destroy(&bebob->tx_stream);
 
 	destroy_both_connections(bebob);
-
-	mutex_unlock(&bebob->mutex);
 }
 
 /*
diff --git a/sound/firewire/dice/dice-stream.c b/sound/firewire/dice/dice-stream.c
index fa9cf76..07dbd01 100644
--- a/sound/firewire/dice/dice-stream.c
+++ b/sound/firewire/dice/dice-stream.c
@@ -311,14 +311,21 @@ end:
 	return err;
 }
 
+/*
+ * This function should be called before starting streams or after stopping
+ * streams.
+ */
 static void destroy_stream(struct snd_dice *dice, struct amdtp_stream *stream)
 {
-	amdtp_stream_destroy(stream);
+	struct fw_iso_resources *resources;
 
 	if (stream == &dice->tx_stream)
-		fw_iso_resources_destroy(&dice->tx_resources);
+		resources = &dice->tx_resources;
 	else
-		fw_iso_resources_destroy(&dice->rx_resources);
+		resources = &dice->rx_resources;
+
+	amdtp_stream_destroy(stream);
+	fw_iso_resources_destroy(resources);
 }
 
 int snd_dice_stream_init_duplex(struct snd_dice *dice)
@@ -332,6 +339,8 @@ int snd_dice_stream_init_duplex(struct snd_dice *dice)
 		goto end;
 
 	err = init_stream(dice, &dice->rx_stream);
+	if (err < 0)
+		destroy_stream(dice, &dice->tx_stream);
 end:
 	return err;
 }
@@ -340,10 +349,7 @@ void snd_dice_stream_destroy_duplex(struct snd_dice *dice)
 {
 	snd_dice_transaction_clear_enable(dice);
 
-	stop_stream(dice, &dice->tx_stream);
 	destroy_stream(dice, &dice->tx_stream);
-
-	stop_stream(dice, &dice->rx_stream);
 	destroy_stream(dice, &dice->rx_stream);
 
 	dice->substreams_counter = 0;
diff --git a/sound/firewire/dice/dice.c b/sound/firewire/dice/dice.c
index 90d8f40..70a111d7f 100644
--- a/sound/firewire/dice/dice.c
+++ b/sound/firewire/dice/dice.c
@@ -226,11 +226,20 @@ static void dice_card_strings(struct snd_dice *dice)
 	strcpy(card->mixername, "DICE");
 }
 
+/*
+ * This module releases the FireWire unit data after all ALSA character devices
+ * are released by applications. This is for releasing stream data or finishing
+ * transactions safely. Thus at returning from .remove(), this module still keep
+ * references for the unit.
+ */
 static void dice_card_free(struct snd_card *card)
 {
 	struct snd_dice *dice = card->private_data;
 
+	snd_dice_stream_destroy_duplex(dice);
 	snd_dice_transaction_destroy(dice);
+	fw_unit_put(dice->unit);
+
 	mutex_destroy(&dice->mutex);
 }
 
@@ -251,7 +260,7 @@ static int dice_probe(struct fw_unit *unit, const struct ieee1394_device_id *id)
 
 	dice = card->private_data;
 	dice->card = card;
-	dice->unit = unit;
+	dice->unit = fw_unit_get(unit);
 	card->private_free = dice_card_free;
 
 	spin_lock_init(&dice->lock);
@@ -305,10 +314,7 @@ static void dice_remove(struct fw_unit *unit)
 {
 	struct snd_dice *dice = dev_get_drvdata(&unit->device);
 
-	snd_card_disconnect(dice->card);
-
-	snd_dice_stream_destroy_duplex(dice);
-
+	/* No need to wait for releasing card object in this context. */
 	snd_card_free_when_closed(dice->card);
 }
 
diff --git a/sound/firewire/fireworks/fireworks.c b/sound/firewire/fireworks/fireworks.c
index 3e2ed8e..2682e7e 100644
--- a/sound/firewire/fireworks/fireworks.c
+++ b/sound/firewire/fireworks/fireworks.c
@@ -173,11 +173,23 @@ end:
 	return err;
 }
 
+/*
+ * This module releases the FireWire unit data after all ALSA character devices
+ * are released by applications. This is for releasing stream data or finishing
+ * transactions safely. Thus at returning from .remove(), this module still keep
+ * references for the unit.
+ */
 static void
 efw_card_free(struct snd_card *card)
 {
 	struct snd_efw *efw = card->private_data;
 
+	snd_efw_stream_destroy_duplex(efw);
+	snd_efw_transaction_remove_instance(efw);
+	fw_unit_put(efw->unit);
+
+	kfree(efw->resp_buf);
+
 	if (efw->card_index >= 0) {
 		mutex_lock(&devices_mutex);
 		clear_bit(efw->card_index, devices_used);
@@ -185,7 +197,6 @@ efw_card_free(struct snd_card *card)
 	}
 
 	mutex_destroy(&efw->mutex);
-	kfree(efw->resp_buf);
 }
 
 static int
@@ -218,7 +229,7 @@ efw_probe(struct fw_unit *unit,
 	card->private_free = efw_card_free;
 
 	efw->card = card;
-	efw->unit = unit;
+	efw->unit = fw_unit_get(unit);
 	mutex_init(&efw->mutex);
 	spin_lock_init(&efw->lock);
 	init_waitqueue_head(&efw->hwdep_wait);
@@ -289,10 +300,7 @@ static void efw_remove(struct fw_unit *unit)
 {
 	struct snd_efw *efw = dev_get_drvdata(&unit->device);
 
-	snd_efw_stream_destroy_duplex(efw);
-	snd_efw_transaction_remove_instance(efw);
-
-	snd_card_disconnect(efw->card);
+	/* No need to wait for releasing card object in this context. */
 	snd_card_free_when_closed(efw->card);
 }
 
diff --git a/sound/firewire/fireworks/fireworks_stream.c b/sound/firewire/fireworks/fireworks_stream.c
index 4f440e1..c55db1b 100644
--- a/sound/firewire/fireworks/fireworks_stream.c
+++ b/sound/firewire/fireworks/fireworks_stream.c
@@ -100,17 +100,22 @@ end:
 	return err;
 }
 
+/*
+ * This function should be called before starting the stream or after stopping
+ * the streams.
+ */
 static void
 destroy_stream(struct snd_efw *efw, struct amdtp_stream *stream)
 {
-	stop_stream(efw, stream);
-
-	amdtp_stream_destroy(stream);
+	struct cmp_connection *conn;
 
 	if (stream == &efw->tx_stream)
-		cmp_connection_destroy(&efw->out_conn);
+		conn = &efw->out_conn;
 	else
-		cmp_connection_destroy(&efw->in_conn);
+		conn = &efw->in_conn;
+
+	amdtp_stream_destroy(stream);
+	cmp_connection_destroy(&efw->out_conn);
 }
 
 static int
@@ -319,12 +324,8 @@ void snd_efw_stream_update_duplex(struct snd_efw *efw)
 
 void snd_efw_stream_destroy_duplex(struct snd_efw *efw)
 {
-	mutex_lock(&efw->mutex);
-
 	destroy_stream(efw, &efw->rx_stream);
 	destroy_stream(efw, &efw->tx_stream);
-
-	mutex_unlock(&efw->mutex);
 }
 
 void snd_efw_stream_lock_changed(struct snd_efw *efw)
diff --git a/sound/firewire/iso-resources.c b/sound/firewire/iso-resources.c
index 5f17b77..f0e4d50 100644
--- a/sound/firewire/iso-resources.c
+++ b/sound/firewire/iso-resources.c
@@ -26,7 +26,7 @@
 int fw_iso_resources_init(struct fw_iso_resources *r, struct fw_unit *unit)
 {
 	r->channels_mask = ~0uLL;
-	r->unit = fw_unit_get(unit);
+	r->unit = unit;
 	mutex_init(&r->mutex);
 	r->allocated = false;
 
@@ -42,7 +42,6 @@ void fw_iso_resources_destroy(struct fw_iso_resources *r)
 {
 	WARN_ON(r->allocated);
 	mutex_destroy(&r->mutex);
-	fw_unit_put(r->unit);
 }
 EXPORT_SYMBOL(fw_iso_resources_destroy);
 
diff --git a/sound/firewire/oxfw/oxfw-stream.c b/sound/firewire/oxfw/oxfw-stream.c
index bda845a..e6757cd 100644
--- a/sound/firewire/oxfw/oxfw-stream.c
+++ b/sound/firewire/oxfw/oxfw-stream.c
@@ -171,9 +171,10 @@ static int start_stream(struct snd_oxfw *oxfw, struct amdtp_stream *stream,
 	}
 
 	/* Wait first packet */
-	err = amdtp_stream_wait_callback(stream, CALLBACK_TIMEOUT);
-	if (err < 0)
+	if (!amdtp_stream_wait_callback(stream, CALLBACK_TIMEOUT)) {
 		stop_stream(oxfw, stream);
+		err = -ETIMEDOUT;
+	}
 end:
 	return err;
 }
@@ -337,6 +338,10 @@ void snd_oxfw_stream_stop_simplex(struct snd_oxfw *oxfw,
 	stop_stream(oxfw, stream);
 }
 
+/*
+ * This function should be called before starting the stream or after stopping
+ * the streams.
+ */
 void snd_oxfw_stream_destroy_simplex(struct snd_oxfw *oxfw,
 				     struct amdtp_stream *stream)
 {
@@ -347,8 +352,6 @@ void snd_oxfw_stream_destroy_simplex(struct snd_oxfw *oxfw,
 	else
 		conn = &oxfw->in_conn;
 
-	stop_stream(oxfw, stream);
-
 	amdtp_stream_destroy(stream);
 	cmp_connection_destroy(conn);
 }
diff --git a/sound/firewire/oxfw/oxfw.c b/sound/firewire/oxfw/oxfw.c
index 60e5cad..8c6ce01 100644
--- a/sound/firewire/oxfw/oxfw.c
+++ b/sound/firewire/oxfw/oxfw.c
@@ -104,11 +104,23 @@ end:
 	return err;
 }
 
+/*
+ * This module releases the FireWire unit data after all ALSA character devices
+ * are released by applications. This is for releasing stream data or finishing
+ * transactions safely. Thus at returning from .remove(), this module still keep
+ * references for the unit.
+ */
 static void oxfw_card_free(struct snd_card *card)
 {
 	struct snd_oxfw *oxfw = card->private_data;
 	unsigned int i;
 
+	snd_oxfw_stream_destroy_simplex(oxfw, &oxfw->rx_stream);
+	if (oxfw->has_output)
+		snd_oxfw_stream_destroy_simplex(oxfw, &oxfw->tx_stream);
+
+	fw_unit_put(oxfw->unit);
+
 	for (i = 0; i < SND_OXFW_STREAM_FORMAT_ENTRIES; i++) {
 		kfree(oxfw->tx_stream_formats[i]);
 		kfree(oxfw->rx_stream_formats[i]);
@@ -136,7 +148,7 @@ static int oxfw_probe(struct fw_unit *unit,
 	oxfw = card->private_data;
 	oxfw->card = card;
 	mutex_init(&oxfw->mutex);
-	oxfw->unit = unit;
+	oxfw->unit = fw_unit_get(unit);
 	oxfw->device_info = (const struct device_info *)id->driver_data;
 	spin_lock_init(&oxfw->lock);
 	init_waitqueue_head(&oxfw->hwdep_wait);
@@ -212,12 +224,7 @@ static void oxfw_remove(struct fw_unit *unit)
 {
 	struct snd_oxfw *oxfw = dev_get_drvdata(&unit->device);
 
-	snd_card_disconnect(oxfw->card);
-
-	snd_oxfw_stream_destroy_simplex(oxfw, &oxfw->rx_stream);
-	if (oxfw->has_output)
-		snd_oxfw_stream_destroy_simplex(oxfw, &oxfw->tx_stream);
-
+	/* No need to wait for releasing card object in this context. */
 	snd_card_free_when_closed(oxfw->card);
 }
 
diff --git a/sound/isa/msnd/msnd_pinnacle_mixer.c b/sound/isa/msnd/msnd_pinnacle_mixer.c
index 17e49a0..b408540 100644
--- a/sound/isa/msnd/msnd_pinnacle_mixer.c
+++ b/sound/isa/msnd/msnd_pinnacle_mixer.c
@@ -306,11 +306,12 @@ int snd_msndmix_new(struct snd_card *card)
 	spin_lock_init(&chip->mixer_lock);
 	strcpy(card->mixername, "MSND Pinnacle Mixer");
 
-	for (idx = 0; idx < ARRAY_SIZE(snd_msnd_controls); idx++)
+	for (idx = 0; idx < ARRAY_SIZE(snd_msnd_controls); idx++) {
 		err = snd_ctl_add(card,
 				  snd_ctl_new1(snd_msnd_controls + idx, chip));
 		if (err < 0)
 			return err;
+	}
 
 	return 0;
 }
diff --git a/sound/pci/hda/hda_controller.c b/sound/pci/hda/hda_controller.c
index dfcb5e9..17c2637 100644
--- a/sound/pci/hda/hda_controller.c
+++ b/sound/pci/hda/hda_controller.c
@@ -961,7 +961,6 @@ static int azx_alloc_cmd_io(struct azx *chip)
 		dev_err(chip->card->dev, "cannot allocate CORB/RIRB\n");
 	return err;
 }
-EXPORT_SYMBOL_GPL(azx_alloc_cmd_io);
 
 static void azx_init_cmd_io(struct azx *chip)
 {
@@ -1026,7 +1025,6 @@ static void azx_init_cmd_io(struct azx *chip)
 	azx_writeb(chip, RIRBCTL, AZX_RBCTL_DMA_EN | AZX_RBCTL_IRQ_EN);
 	spin_unlock_irq(&chip->reg_lock);
 }
-EXPORT_SYMBOL_GPL(azx_init_cmd_io);
 
 static void azx_free_cmd_io(struct azx *chip)
 {
@@ -1036,7 +1034,6 @@ static void azx_free_cmd_io(struct azx *chip)
 	azx_writeb(chip, CORBCTL, 0);
 	spin_unlock_irq(&chip->reg_lock);
 }
-EXPORT_SYMBOL_GPL(azx_free_cmd_io);
 
 static unsigned int azx_command_addr(u32 cmd)
 {
@@ -1167,7 +1164,7 @@ static unsigned int azx_rirb_get_response(struct hda_bus *bus,
 		}
 	}
 
-	if (!bus->no_response_fallback)
+	if (bus->no_response_fallback)
 		return -1;
 
 	if (!chip->polling_mode && chip->poll_count < 2) {
@@ -1316,7 +1313,6 @@ static int azx_send_cmd(struct hda_bus *bus, unsigned int val)
 	else
 		return azx_corb_send_cmd(bus, val);
 }
-EXPORT_SYMBOL_GPL(azx_send_cmd);
 
 /* get a response */
 static unsigned int azx_get_response(struct hda_bus *bus,
@@ -1330,7 +1326,6 @@ static unsigned int azx_get_response(struct hda_bus *bus,
 	else
 		return azx_rirb_get_response(bus, addr);
 }
-EXPORT_SYMBOL_GPL(azx_get_response);
 
 #ifdef CONFIG_SND_HDA_DSP_LOADER
 /*
diff --git a/sound/pci/hda/hda_generic.c b/sound/pci/hda/hda_generic.c
index b680b4e..8ec5289 100644
--- a/sound/pci/hda/hda_generic.c
+++ b/sound/pci/hda/hda_generic.c
@@ -687,12 +687,45 @@ static int get_amp_val_to_activate(struct hda_codec *codec, hda_nid_t nid,
 	return val;
 }
 
+/* is this a stereo widget or a stereo-to-mono mix? */
+static bool is_stereo_amps(struct hda_codec *codec, hda_nid_t nid, int dir)
+{
+	unsigned int wcaps = get_wcaps(codec, nid);
+	hda_nid_t conn;
+
+	if (wcaps & AC_WCAP_STEREO)
+		return true;
+	if (dir != HDA_INPUT || get_wcaps_type(wcaps) != AC_WID_AUD_MIX)
+		return false;
+	if (snd_hda_get_num_conns(codec, nid) != 1)
+		return false;
+	if (snd_hda_get_connections(codec, nid, &conn, 1) < 0)
+		return false;
+	return !!(get_wcaps(codec, conn) & AC_WCAP_STEREO);
+}
+
 /* initialize the amp value (only at the first time) */
 static void init_amp(struct hda_codec *codec, hda_nid_t nid, int dir, int idx)
 {
 	unsigned int caps = query_amp_caps(codec, nid, dir);
 	int val = get_amp_val_to_activate(codec, nid, dir, caps, false);
-	snd_hda_codec_amp_init_stereo(codec, nid, dir, idx, 0xff, val);
+
+	if (is_stereo_amps(codec, nid, dir))
+		snd_hda_codec_amp_init_stereo(codec, nid, dir, idx, 0xff, val);
+	else
+		snd_hda_codec_amp_init(codec, nid, 0, dir, idx, 0xff, val);
+}
+
+/* update the amp, doing in stereo or mono depending on NID */
+static int update_amp(struct hda_codec *codec, hda_nid_t nid, int dir, int idx,
+		      unsigned int mask, unsigned int val)
+{
+	if (is_stereo_amps(codec, nid, dir))
+		return snd_hda_codec_amp_stereo(codec, nid, dir, idx,
+						mask, val);
+	else
+		return snd_hda_codec_amp_update(codec, nid, 0, dir, idx,
+						mask, val);
 }
 
 /* calculate amp value mask we can modify;
@@ -732,7 +765,7 @@ static void activate_amp(struct hda_codec *codec, hda_nid_t nid, int dir,
 		return;
 
 	val &= mask;
-	snd_hda_codec_amp_stereo(codec, nid, dir, idx, mask, val);
+	update_amp(codec, nid, dir, idx, mask, val);
 }
 
 static void activate_amp_out(struct hda_codec *codec, struct nid_path *path,
@@ -4424,13 +4457,11 @@ static void mute_all_mixer_nid(struct hda_codec *codec, hda_nid_t mix)
 	has_amp = nid_has_mute(codec, mix, HDA_INPUT);
 	for (i = 0; i < nums; i++) {
 		if (has_amp)
-			snd_hda_codec_amp_stereo(codec, mix,
-						 HDA_INPUT, i,
-						 0xff, HDA_AMP_MUTE);
+			update_amp(codec, mix, HDA_INPUT, i,
+				   0xff, HDA_AMP_MUTE);
 		else if (nid_has_volume(codec, conn[i], HDA_OUTPUT))
-			snd_hda_codec_amp_stereo(codec, conn[i],
-						 HDA_OUTPUT, 0,
-						 0xff, HDA_AMP_MUTE);
+			update_amp(codec, conn[i], HDA_OUTPUT, 0,
+				   0xff, HDA_AMP_MUTE);
 	}
 }
 
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index 36d2f20..a8a1e14 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -1966,7 +1966,7 @@ static const struct pci_device_id azx_ids[] = {
 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM },
 	/* Panther Point */
 	{ PCI_DEVICE(0x8086, 0x1e20),
-	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
+	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM },
 	/* Lynx Point */
 	{ PCI_DEVICE(0x8086, 0x8c20),
 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
@@ -1989,7 +1989,7 @@ static const struct pci_device_id azx_ids[] = {
 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
 	/* Sunrise Point */
 	{ PCI_DEVICE(0x8086, 0xa170),
-	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
+	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_SKYLAKE },
 	/* Sunrise Point-LP */
 	{ PCI_DEVICE(0x8086, 0x9d70),
 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_SKYLAKE },
diff --git a/sound/pci/hda/hda_proc.c b/sound/pci/hda/hda_proc.c
index ce5a6da..05e19f7 100644
--- a/sound/pci/hda/hda_proc.c
+++ b/sound/pci/hda/hda_proc.c
@@ -134,13 +134,38 @@ static void print_amp_caps(struct snd_info_buffer *buffer,
 		    (caps & AC_AMPCAP_MUTE) >> AC_AMPCAP_MUTE_SHIFT);
 }
 
+/* is this a stereo widget or a stereo-to-mono mix? */
+static bool is_stereo_amps(struct hda_codec *codec, hda_nid_t nid,
+			   int dir, unsigned int wcaps, int indices)
+{
+	hda_nid_t conn;
+
+	if (wcaps & AC_WCAP_STEREO)
+		return true;
+	/* check for a stereo-to-mono mix; it must be:
+	 * only a single connection, only for input, and only a mixer widget
+	 */
+	if (indices != 1 || dir != HDA_INPUT ||
+	    get_wcaps_type(wcaps) != AC_WID_AUD_MIX)
+		return false;
+
+	if (snd_hda_get_raw_connections(codec, nid, &conn, 1) < 0)
+		return false;
+	/* the connection source is a stereo? */
+	wcaps = snd_hda_param_read(codec, conn, AC_PAR_AUDIO_WIDGET_CAP);
+	return !!(wcaps & AC_WCAP_STEREO);
+}
+
 static void print_amp_vals(struct snd_info_buffer *buffer,
 			   struct hda_codec *codec, hda_nid_t nid,
-			   int dir, int stereo, int indices)
+			   int dir, unsigned int wcaps, int indices)
 {
 	unsigned int val;
+	bool stereo;
 	int i;
 
+	stereo = is_stereo_amps(codec, nid, dir, wcaps, indices);
+
 	dir = dir == HDA_OUTPUT ? AC_AMP_GET_OUTPUT : AC_AMP_GET_INPUT;
 	for (i = 0; i < indices; i++) {
 		snd_iprintf(buffer, " [");
@@ -757,12 +782,10 @@ static void print_codec_info(struct snd_info_entry *entry,
 			    (codec->single_adc_amp &&
 			     wid_type == AC_WID_AUD_IN))
 				print_amp_vals(buffer, codec, nid, HDA_INPUT,
-					       wid_caps & AC_WCAP_STEREO,
-					       1);
+					       wid_caps, 1);
 			else
 				print_amp_vals(buffer, codec, nid, HDA_INPUT,
-					       wid_caps & AC_WCAP_STEREO,
-					       conn_len);
+					       wid_caps, conn_len);
 		}
 		if (wid_caps & AC_WCAP_OUT_AMP) {
 			snd_iprintf(buffer, "  Amp-Out caps: ");
@@ -771,11 +794,10 @@ static void print_codec_info(struct snd_info_entry *entry,
 			if (wid_type == AC_WID_PIN &&
 			    codec->pin_amp_workaround)
 				print_amp_vals(buffer, codec, nid, HDA_OUTPUT,
-					       wid_caps & AC_WCAP_STEREO,
-					       conn_len);
+					       wid_caps, conn_len);
 			else
 				print_amp_vals(buffer, codec, nid, HDA_OUTPUT,
-					       wid_caps & AC_WCAP_STEREO, 1);
+					       wid_caps, 1);
 		}
 
 		switch (wid_type) {
diff --git a/sound/pci/hda/patch_cirrus.c b/sound/pci/hda/patch_cirrus.c
index 1589c9b..dd2b3d9 100644
--- a/sound/pci/hda/patch_cirrus.c
+++ b/sound/pci/hda/patch_cirrus.c
@@ -393,6 +393,7 @@ static const struct snd_pci_quirk cs420x_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x106b, 0x1c00, "MacBookPro 8,1", CS420X_MBP81),
 	SND_PCI_QUIRK(0x106b, 0x2000, "iMac 12,2", CS420X_IMAC27_122),
 	SND_PCI_QUIRK(0x106b, 0x2800, "MacBookPro 10,1", CS420X_MBP101),
+	SND_PCI_QUIRK(0x106b, 0x5600, "MacBookAir 5,2", CS420X_MBP81),
 	SND_PCI_QUIRK(0x106b, 0x5b00, "MacBookAir 4,2", CS420X_MBA42),
 	SND_PCI_QUIRK_VENDOR(0x106b, "Apple", CS420X_APPLE),
 	{} /* terminator */
@@ -584,6 +585,7 @@ static int patch_cs420x(struct hda_codec *codec)
 		return -ENOMEM;
 
 	spec->gen.automute_hook = cs_automute;
+	codec->single_adc_amp = 1;
 
 	snd_hda_pick_fixup(codec, cs420x_models, cs420x_fixup_tbl,
 			   cs420x_fixups);
diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c
index fd3ed18..da67ea8 100644
--- a/sound/pci/hda/patch_conexant.c
+++ b/sound/pci/hda/patch_conexant.c
@@ -223,6 +223,7 @@ enum {
 	CXT_PINCFG_LENOVO_TP410,
 	CXT_PINCFG_LEMOTE_A1004,
 	CXT_PINCFG_LEMOTE_A1205,
+	CXT_PINCFG_COMPAQ_CQ60,
 	CXT_FIXUP_STEREO_DMIC,
 	CXT_FIXUP_INC_MIC_BOOST,
 	CXT_FIXUP_HEADPHONE_MIC_PIN,
@@ -660,6 +661,15 @@ static const struct hda_fixup cxt_fixups[] = {
 		.type = HDA_FIXUP_PINS,
 		.v.pins = cxt_pincfg_lemote,
 	},
+	[CXT_PINCFG_COMPAQ_CQ60] = {
+		.type = HDA_FIXUP_PINS,
+		.v.pins = (const struct hda_pintbl[]) {
+			/* 0x17 was falsely set up as a mic, it should 0x1d */
+			{ 0x17, 0x400001f0 },
+			{ 0x1d, 0x97a70120 },
+			{ }
+		}
+	},
 	[CXT_FIXUP_STEREO_DMIC] = {
 		.type = HDA_FIXUP_FUNC,
 		.v.func = cxt_fixup_stereo_dmic,
@@ -769,6 +779,7 @@ static const struct hda_model_fixup cxt5047_fixup_models[] = {
 };
 
 static const struct snd_pci_quirk cxt5051_fixups[] = {
+	SND_PCI_QUIRK(0x103c, 0x360b, "Compaq CQ60", CXT_PINCFG_COMPAQ_CQ60),
 	SND_PCI_QUIRK(0x17aa, 0x20f2, "Lenovo X200", CXT_PINCFG_LENOVO_X200),
 	{}
 };
diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index b2b24a8..f9d12c0 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -396,7 +396,7 @@ static void alc_auto_setup_eapd(struct hda_codec *codec, bool on)
 {
 	/* We currently only handle front, HP */
 	static hda_nid_t pins[] = {
-		0x0f, 0x10, 0x14, 0x15, 0
+		0x0f, 0x10, 0x14, 0x15, 0x17, 0
 	};
 	hda_nid_t *p;
 	for (p = pins; *p; p++)
@@ -2912,6 +2912,8 @@ static void alc283_init(struct hda_codec *codec)
 
 	if (!hp_pin)
 		return;
+
+	msleep(30);
 	hp_pin_sense = snd_hda_jack_detect(codec, hp_pin);
 
 	/* Index 0x43 Direct Drive HP AMP LPM Control 1 */
@@ -3607,6 +3609,7 @@ static void alc_headset_mode_unplugged(struct hda_codec *codec)
 
 	switch (codec->vendor_id) {
 	case 0x10ec0255:
+	case 0x10ec0256:
 		alc_process_coef_fw(codec, coef0255);
 		break;
 	case 0x10ec0233:
@@ -3662,6 +3665,7 @@ static void alc_headset_mode_mic_in(struct hda_codec *codec, hda_nid_t hp_pin,
 
 	switch (codec->vendor_id) {
 	case 0x10ec0255:
+	case 0x10ec0256:
 		alc_write_coef_idx(codec, 0x45, 0xc489);
 		snd_hda_set_pin_ctl_cache(codec, hp_pin, 0);
 		alc_process_coef_fw(codec, coef0255);
@@ -3731,6 +3735,7 @@ static void alc_headset_mode_default(struct hda_codec *codec)
 
 	switch (codec->vendor_id) {
 	case 0x10ec0255:
+	case 0x10ec0256:
 		alc_process_coef_fw(codec, coef0255);
 		break;
 	case 0x10ec0233:
@@ -3785,6 +3790,7 @@ static void alc_headset_mode_ctia(struct hda_codec *codec)
 
 	switch (codec->vendor_id) {
 	case 0x10ec0255:
+	case 0x10ec0256:
 		alc_process_coef_fw(codec, coef0255);
 		break;
 	case 0x10ec0233:
@@ -3839,6 +3845,7 @@ static void alc_headset_mode_omtp(struct hda_codec *codec)
 
 	switch (codec->vendor_id) {
 	case 0x10ec0255:
+	case 0x10ec0256:
 		alc_process_coef_fw(codec, coef0255);
 		break;
 	case 0x10ec0233:
@@ -3884,6 +3891,7 @@ static void alc_determine_headset_type(struct hda_codec *codec)
 
 	switch (codec->vendor_id) {
 	case 0x10ec0255:
+	case 0x10ec0256:
 		alc_process_coef_fw(codec, coef0255);
 		msleep(300);
 		val = alc_read_coef_idx(codec, 0x46);
@@ -4364,6 +4372,7 @@ enum {
 	ALC269_FIXUP_QUANTA_MUTE,
 	ALC269_FIXUP_LIFEBOOK,
 	ALC269_FIXUP_LIFEBOOK_EXTMIC,
+	ALC269_FIXUP_LIFEBOOK_HP_PIN,
 	ALC269_FIXUP_AMIC,
 	ALC269_FIXUP_DMIC,
 	ALC269VB_FIXUP_AMIC,
@@ -4517,6 +4526,13 @@ static const struct hda_fixup alc269_fixups[] = {
 			{ }
 		},
 	},
+	[ALC269_FIXUP_LIFEBOOK_HP_PIN] = {
+		.type = HDA_FIXUP_PINS,
+		.v.pins = (const struct hda_pintbl[]) {
+			{ 0x21, 0x0221102f }, /* HP out */
+			{ }
+		},
+	},
 	[ALC269_FIXUP_AMIC] = {
 		.type = HDA_FIXUP_PINS,
 		.v.pins = (const struct hda_pintbl[]) {
@@ -5010,6 +5026,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x104d, 0x9084, "Sony VAIO", ALC275_FIXUP_SONY_HWEQ),
 	SND_PCI_QUIRK(0x104d, 0x9099, "Sony VAIO S13", ALC275_FIXUP_SONY_DISABLE_AAMIX),
 	SND_PCI_QUIRK(0x10cf, 0x1475, "Lifebook", ALC269_FIXUP_LIFEBOOK),
+	SND_PCI_QUIRK(0x10cf, 0x15dc, "Lifebook T731", ALC269_FIXUP_LIFEBOOK_HP_PIN),
 	SND_PCI_QUIRK(0x10cf, 0x1845, "Lifebook U904", ALC269_FIXUP_LIFEBOOK_EXTMIC),
 	SND_PCI_QUIRK(0x144d, 0xc109, "Samsung Ativ book 9 (NP900X3G)", ALC269_FIXUP_INV_DMIC),
 	SND_PCI_QUIRK(0x1458, 0xfa53, "Gigabyte BXBT-2807", ALC283_FIXUP_BXBT2807_MIC),
@@ -5036,6 +5053,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x17aa, 0x501a, "Thinkpad", ALC283_FIXUP_INT_MIC),
 	SND_PCI_QUIRK(0x17aa, 0x501e, "Thinkpad L440", ALC292_FIXUP_TPT440_DOCK),
 	SND_PCI_QUIRK(0x17aa, 0x5026, "Thinkpad", ALC269_FIXUP_LIMIT_INT_MIC_BOOST),
+	SND_PCI_QUIRK(0x17aa, 0x5036, "Thinkpad T450s", ALC292_FIXUP_TPT440_DOCK),
 	SND_PCI_QUIRK(0x17aa, 0x5109, "Thinkpad", ALC269_FIXUP_LIMIT_INT_MIC_BOOST),
 	SND_PCI_QUIRK(0x17aa, 0x3bf8, "Quanta FL1", ALC269_FIXUP_PCM_44K),
 	SND_PCI_QUIRK(0x17aa, 0x9e54, "LENOVO NB", ALC269_FIXUP_LENOVO_EAPD),
@@ -5209,6 +5227,23 @@ static const struct snd_hda_pin_quirk alc269_pin_fixup_tbl[] = {
 		{0x17, 0x40000000},
 		{0x1d, 0x40700001},
 		{0x21, 0x02211040}),
+	SND_HDA_PIN_QUIRK(0x10ec0255, 0x1028, "Dell", ALC255_FIXUP_DELL1_MIC_NO_PRESENCE,
+		ALC255_STANDARD_PINS,
+		{0x12, 0x90a60170},
+		{0x14, 0x90170140},
+		{0x17, 0x40000000},
+		{0x1d, 0x40700001},
+		{0x21, 0x02211050}),
+	SND_HDA_PIN_QUIRK(0x10ec0256, 0x1028, "Dell", ALC255_FIXUP_DELL1_MIC_NO_PRESENCE,
+		{0x12, 0x90a60140},
+		{0x13, 0x40000000},
+		{0x14, 0x90170110},
+		{0x19, 0x411111f0},
+		{0x1a, 0x411111f0},
+		{0x1b, 0x411111f0},
+		{0x1d, 0x40700001},
+		{0x1e, 0x411111f0},
+		{0x21, 0x02211020}),
 	SND_HDA_PIN_QUIRK(0x10ec0280, 0x103c, "HP", ALC280_FIXUP_HP_GPIO4,
 		{0x12, 0x90a60130},
 		{0x13, 0x40000000},
diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c
index 6d36c5b..87eff31 100644
--- a/sound/pci/hda/patch_sigmatel.c
+++ b/sound/pci/hda/patch_sigmatel.c
@@ -79,6 +79,7 @@ enum {
 	STAC_ALIENWARE_M17X,
 	STAC_92HD89XX_HP_FRONT_JACK,
 	STAC_92HD89XX_HP_Z1_G2_RIGHT_MIC_JACK,
+	STAC_92HD73XX_ASUS_MOBO,
 	STAC_92HD73XX_MODELS
 };
 
@@ -1911,7 +1912,18 @@ static const struct hda_fixup stac92hd73xx_fixups[] = {
 	[STAC_92HD89XX_HP_Z1_G2_RIGHT_MIC_JACK] = {
 		.type = HDA_FIXUP_PINS,
 		.v.pins = stac92hd89xx_hp_z1_g2_right_mic_jack_pin_configs,
-	}
+	},
+	[STAC_92HD73XX_ASUS_MOBO] = {
+		.type = HDA_FIXUP_PINS,
+		.v.pins = (const struct hda_pintbl[]) {
+			/* enable 5.1 and SPDIF out */
+			{ 0x0c, 0x01014411 },
+			{ 0x0d, 0x01014410 },
+			{ 0x0e, 0x01014412 },
+			{ 0x22, 0x014b1180 },
+			{ }
+		}
+	},
 };
 
 static const struct hda_model_fixup stac92hd73xx_models[] = {
@@ -1923,6 +1935,7 @@ static const struct hda_model_fixup stac92hd73xx_models[] = {
 	{ .id = STAC_DELL_M6_BOTH, .name = "dell-m6" },
 	{ .id = STAC_DELL_EQ, .name = "dell-eq" },
 	{ .id = STAC_ALIENWARE_M17X, .name = "alienware" },
+	{ .id = STAC_92HD73XX_ASUS_MOBO, .name = "asus-mobo" },
 	{}
 };
 
@@ -1975,6 +1988,8 @@ static const struct snd_pci_quirk stac92hd73xx_fixup_tbl[] = {
 				"HP Z1 G2", STAC_92HD89XX_HP_Z1_G2_RIGHT_MIC_JACK),
 	SND_PCI_QUIRK(PCI_VENDOR_ID_HP, 0x2b17,
 				"unknown HP", STAC_92HD89XX_HP_FRONT_JACK),
+	SND_PCI_QUIRK(PCI_VENDOR_ID_ASUSTEK, 0x83f8, "ASUS AT4NM10",
+		      STAC_92HD73XX_ASUS_MOBO),
 	{} /* terminator */
 };
 
diff --git a/sound/soc/atmel/sam9g20_wm8731.c b/sound/soc/atmel/sam9g20_wm8731.c
index f5ad214..8de8361 100644
--- a/sound/soc/atmel/sam9g20_wm8731.c
+++ b/sound/soc/atmel/sam9g20_wm8731.c
@@ -46,8 +46,6 @@
 #include <sound/pcm_params.h>
 #include <sound/soc.h>
 
-#include <asm/mach-types.h>
-
 #include "../codecs/wm8731.h"
 #include "atmel-pcm.h"
 #include "atmel_ssc_dai.h"
@@ -171,9 +169,7 @@ static int at91sam9g20ek_audio_probe(struct platform_device *pdev)
 	int ret;
 
 	if (!np) {
-		if (!(machine_is_at91sam9g20ek() ||
-			machine_is_at91sam9g20ek_2mmc()))
-			return -ENODEV;
+		return -ENODEV;
 	}
 
 	ret = atmel_ssc_set_audio(0);
@@ -210,39 +206,37 @@ static int at91sam9g20ek_audio_probe(struct platform_device *pdev)
 	card->dev = &pdev->dev;
 
 	/* Parse device node info */
-	if (np) {
-		ret = snd_soc_of_parse_card_name(card, "atmel,model");
-		if (ret)
-			goto err;
-
-		ret = snd_soc_of_parse_audio_routing(card,
-			"atmel,audio-routing");
-		if (ret)
-			goto err;
-
-		/* Parse codec info */
-		at91sam9g20ek_dai.codec_name = NULL;
-		codec_np = of_parse_phandle(np, "atmel,audio-codec", 0);
-		if (!codec_np) {
-			dev_err(&pdev->dev, "codec info missing\n");
-			return -EINVAL;
-		}
-		at91sam9g20ek_dai.codec_of_node = codec_np;
-
-		/* Parse dai and platform info */
-		at91sam9g20ek_dai.cpu_dai_name = NULL;
-		at91sam9g20ek_dai.platform_name = NULL;
-		cpu_np = of_parse_phandle(np, "atmel,ssc-controller", 0);
-		if (!cpu_np) {
-			dev_err(&pdev->dev, "dai and pcm info missing\n");
-			return -EINVAL;
-		}
-		at91sam9g20ek_dai.cpu_of_node = cpu_np;
-		at91sam9g20ek_dai.platform_of_node = cpu_np;
-
-		of_node_put(codec_np);
-		of_node_put(cpu_np);
+	ret = snd_soc_of_parse_card_name(card, "atmel,model");
+	if (ret)
+		goto err;
+
+	ret = snd_soc_of_parse_audio_routing(card,
+		"atmel,audio-routing");
+	if (ret)
+		goto err;
+
+	/* Parse codec info */
+	at91sam9g20ek_dai.codec_name = NULL;
+	codec_np = of_parse_phandle(np, "atmel,audio-codec", 0);
+	if (!codec_np) {
+		dev_err(&pdev->dev, "codec info missing\n");
+		return -EINVAL;
+	}
+	at91sam9g20ek_dai.codec_of_node = codec_np;
+
+	/* Parse dai and platform info */
+	at91sam9g20ek_dai.cpu_dai_name = NULL;
+	at91sam9g20ek_dai.platform_name = NULL;
+	cpu_np = of_parse_phandle(np, "atmel,ssc-controller", 0);
+	if (!cpu_np) {
+		dev_err(&pdev->dev, "dai and pcm info missing\n");
+		return -EINVAL;
 	}
+	at91sam9g20ek_dai.cpu_of_node = cpu_np;
+	at91sam9g20ek_dai.platform_of_node = cpu_np;
+
+	of_node_put(codec_np);
+	of_node_put(cpu_np);
 
 	ret = snd_soc_register_card(card);
 	if (ret) {
diff --git a/sound/soc/cirrus/Kconfig b/sound/soc/cirrus/Kconfig
index 7b7fbcd..c7cd60f 100644
--- a/sound/soc/cirrus/Kconfig
+++ b/sound/soc/cirrus/Kconfig
@@ -16,7 +16,7 @@ config SND_EP93XX_SOC_AC97
 
 config SND_EP93XX_SOC_SNAPPERCL15
         tristate "SoC Audio support for Bluewater Systems Snapper CL15 module"
-        depends on SND_EP93XX_SOC && MACH_SNAPPER_CL15
+        depends on SND_EP93XX_SOC && MACH_SNAPPER_CL15 && I2C
         select SND_EP93XX_SOC_I2S
         select SND_SOC_TLV320AIC23_I2C
         help
diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
index 064e6c1..ea9f0e3 100644
--- a/sound/soc/codecs/Kconfig
+++ b/sound/soc/codecs/Kconfig
@@ -69,7 +69,7 @@ config SND_SOC_ALL_CODECS
 	select SND_SOC_MAX98088 if I2C
 	select SND_SOC_MAX98090 if I2C
 	select SND_SOC_MAX98095 if I2C
-	select SND_SOC_MAX98357A
+	select SND_SOC_MAX98357A if GPIOLIB
 	select SND_SOC_MAX9850 if I2C
 	select SND_SOC_MAX9768 if I2C
 	select SND_SOC_MAX9877 if I2C
diff --git a/sound/soc/codecs/adav80x.c b/sound/soc/codecs/adav80x.c
index b67480f..4373ada 100644
--- a/sound/soc/codecs/adav80x.c
+++ b/sound/soc/codecs/adav80x.c
@@ -317,7 +317,7 @@ static int adav80x_put_deemph(struct snd_kcontrol *kcontrol,
 {
 	struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
 	struct adav80x *adav80x = snd_soc_codec_get_drvdata(codec);
-	unsigned int deemph = ucontrol->value.enumerated.item[0];
+	unsigned int deemph = ucontrol->value.integer.value[0];
 
 	if (deemph > 1)
 		return -EINVAL;
@@ -333,7 +333,7 @@ static int adav80x_get_deemph(struct snd_kcontrol *kcontrol,
 	struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
 	struct adav80x *adav80x = snd_soc_codec_get_drvdata(codec);
 
-	ucontrol->value.enumerated.item[0] = adav80x->deemph;
+	ucontrol->value.integer.value[0] = adav80x->deemph;
 	return 0;
 };
 
diff --git a/sound/soc/codecs/ak4641.c b/sound/soc/codecs/ak4641.c
index 70861c7..81b54a2 100644
--- a/sound/soc/codecs/ak4641.c
+++ b/sound/soc/codecs/ak4641.c
@@ -76,7 +76,7 @@ static int ak4641_put_deemph(struct snd_kcontrol *kcontrol,
 {
 	struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
 	struct ak4641_priv *ak4641 = snd_soc_codec_get_drvdata(codec);
-	int deemph = ucontrol->value.enumerated.item[0];
+	int deemph = ucontrol->value.integer.value[0];
 
 	if (deemph > 1)
 		return -EINVAL;
@@ -92,7 +92,7 @@ static int ak4641_get_deemph(struct snd_kcontrol *kcontrol,
 	struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
 	struct ak4641_priv *ak4641 = snd_soc_codec_get_drvdata(codec);
 
-	ucontrol->value.enumerated.item[0] = ak4641->deemph;
+	ucontrol->value.integer.value[0] = ak4641->deemph;
 	return 0;
 };
 
diff --git a/sound/soc/codecs/ak4671.c b/sound/soc/codecs/ak4671.c
index 632e89f..2a58b1d 100644
--- a/sound/soc/codecs/ak4671.c
+++ b/sound/soc/codecs/ak4671.c
@@ -343,25 +343,25 @@ static const struct snd_soc_dapm_widget ak4671_dapm_widgets[] = {
 };
 
 static const struct snd_soc_dapm_route ak4671_intercon[] = {
-	{"DAC Left", "NULL", "PMPLL"},
-	{"DAC Right", "NULL", "PMPLL"},
-	{"ADC Left", "NULL", "PMPLL"},
-	{"ADC Right", "NULL", "PMPLL"},
+	{"DAC Left", NULL, "PMPLL"},
+	{"DAC Right", NULL, "PMPLL"},
+	{"ADC Left", NULL, "PMPLL"},
+	{"ADC Right", NULL, "PMPLL"},
 
 	/* Outputs */
-	{"LOUT1", "NULL", "LOUT1 Mixer"},
-	{"ROUT1", "NULL", "ROUT1 Mixer"},
-	{"LOUT2", "NULL", "LOUT2 Mix Amp"},
-	{"ROUT2", "NULL", "ROUT2 Mix Amp"},
-	{"LOUT3", "NULL", "LOUT3 Mixer"},
-	{"ROUT3", "NULL", "ROUT3 Mixer"},
+	{"LOUT1", NULL, "LOUT1 Mixer"},
+	{"ROUT1", NULL, "ROUT1 Mixer"},
+	{"LOUT2", NULL, "LOUT2 Mix Amp"},
+	{"ROUT2", NULL, "ROUT2 Mix Amp"},
+	{"LOUT3", NULL, "LOUT3 Mixer"},
+	{"ROUT3", NULL, "ROUT3 Mixer"},
 
 	{"LOUT1 Mixer", "DACL", "DAC Left"},
 	{"ROUT1 Mixer", "DACR", "DAC Right"},
 	{"LOUT2 Mixer", "DACHL", "DAC Left"},
 	{"ROUT2 Mixer", "DACHR", "DAC Right"},
-	{"LOUT2 Mix Amp", "NULL", "LOUT2 Mixer"},
-	{"ROUT2 Mix Amp", "NULL", "ROUT2 Mixer"},
+	{"LOUT2 Mix Amp", NULL, "LOUT2 Mixer"},
+	{"ROUT2 Mix Amp", NULL, "ROUT2 Mixer"},
 	{"LOUT3 Mixer", "DACSL", "DAC Left"},
 	{"ROUT3 Mixer", "DACSR", "DAC Right"},
 
@@ -381,18 +381,18 @@ static const struct snd_soc_dapm_route ak4671_intercon[] = {
 	{"LIN2", NULL, "Mic Bias"},
 	{"RIN2", NULL, "Mic Bias"},
 
-	{"ADC Left", "NULL", "LIN MUX"},
-	{"ADC Right", "NULL", "RIN MUX"},
+	{"ADC Left", NULL, "LIN MUX"},
+	{"ADC Right", NULL, "RIN MUX"},
 
 	/* Analog Loops */
-	{"LIN1 Mixing Circuit", "NULL", "LIN1"},
-	{"RIN1 Mixing Circuit", "NULL", "RIN1"},
-	{"LIN2 Mixing Circuit", "NULL", "LIN2"},
-	{"RIN2 Mixing Circuit", "NULL", "RIN2"},
-	{"LIN3 Mixing Circuit", "NULL", "LIN3"},
-	{"RIN3 Mixing Circuit", "NULL", "RIN3"},
-	{"LIN4 Mixing Circuit", "NULL", "LIN4"},
-	{"RIN4 Mixing Circuit", "NULL", "RIN4"},
+	{"LIN1 Mixing Circuit", NULL, "LIN1"},
+	{"RIN1 Mixing Circuit", NULL, "RIN1"},
+	{"LIN2 Mixing Circuit", NULL, "LIN2"},
+	{"RIN2 Mixing Circuit", NULL, "RIN2"},
+	{"LIN3 Mixing Circuit", NULL, "LIN3"},
+	{"RIN3 Mixing Circuit", NULL, "RIN3"},
+	{"LIN4 Mixing Circuit", NULL, "LIN4"},
+	{"RIN4 Mixing Circuit", NULL, "RIN4"},
 
 	{"LOUT1 Mixer", "LINL1", "LIN1 Mixing Circuit"},
 	{"ROUT1 Mixer", "RINR1", "RIN1 Mixing Circuit"},
diff --git a/sound/soc/codecs/cs4271.c b/sound/soc/codecs/cs4271.c
index 79a4efc..7d3a6ac 100644
--- a/sound/soc/codecs/cs4271.c
+++ b/sound/soc/codecs/cs4271.c
@@ -286,7 +286,7 @@ static int cs4271_get_deemph(struct snd_kcontrol *kcontrol,
 	struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
 	struct cs4271_private *cs4271 = snd_soc_codec_get_drvdata(codec);
 
-	ucontrol->value.enumerated.item[0] = cs4271->deemph;
+	ucontrol->value.integer.value[0] = cs4271->deemph;
 	return 0;
 }
 
@@ -296,7 +296,7 @@ static int cs4271_put_deemph(struct snd_kcontrol *kcontrol,
 	struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
 	struct cs4271_private *cs4271 = snd_soc_codec_get_drvdata(codec);
 
-	cs4271->deemph = ucontrol->value.enumerated.item[0];
+	cs4271->deemph = ucontrol->value.integer.value[0];
 	return cs4271_set_deemph(codec);
 }
 
diff --git a/sound/soc/codecs/da732x.c b/sound/soc/codecs/da732x.c
index ffe9617..911c26c 100644
--- a/sound/soc/codecs/da732x.c
+++ b/sound/soc/codecs/da732x.c
@@ -876,11 +876,11 @@ static const struct snd_soc_dapm_widget da732x_dapm_widgets[] = {
 
 static const struct snd_soc_dapm_route da732x_dapm_routes[] = {
 	/* Inputs */
-	{"AUX1L PGA", "NULL", "AUX1L"},
-	{"AUX1R PGA", "NULL", "AUX1R"},
+	{"AUX1L PGA", NULL, "AUX1L"},
+	{"AUX1R PGA", NULL, "AUX1R"},
 	{"MIC1 PGA", NULL, "MIC1"},
-	{"MIC2 PGA", "NULL", "MIC2"},
-	{"MIC3 PGA", "NULL", "MIC3"},
+	{"MIC2 PGA", NULL, "MIC2"},
+	{"MIC3 PGA", NULL, "MIC3"},
 
 	/* Capture Path */
 	{"ADC1 Left MUX", "MIC1", "MIC1 PGA"},
diff --git a/sound/soc/codecs/es8328.c b/sound/soc/codecs/es8328.c
index f273251..c5f35a0 100644
--- a/sound/soc/codecs/es8328.c
+++ b/sound/soc/codecs/es8328.c
@@ -120,7 +120,7 @@ static int es8328_get_deemph(struct snd_kcontrol *kcontrol,
 	struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
 	struct es8328_priv *es8328 = snd_soc_codec_get_drvdata(codec);
 
-	ucontrol->value.enumerated.item[0] = es8328->deemph;
+	ucontrol->value.integer.value[0] = es8328->deemph;
 	return 0;
 }
 
@@ -129,7 +129,7 @@ static int es8328_put_deemph(struct snd_kcontrol *kcontrol,
 {
 	struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
 	struct es8328_priv *es8328 = snd_soc_codec_get_drvdata(codec);
-	int deemph = ucontrol->value.enumerated.item[0];
+	int deemph = ucontrol->value.integer.value[0];
 	int ret;
 
 	if (deemph > 1)
diff --git a/sound/soc/codecs/max98357a.c b/sound/soc/codecs/max98357a.c
index 1806333..e9e6efb 100644
--- a/sound/soc/codecs/max98357a.c
+++ b/sound/soc/codecs/max98357a.c
@@ -12,9 +12,19 @@
  * max98357a.c -- MAX98357A ALSA SoC Codec driver
  */
 
-#include <linux/module.h>
+#include <linux/device.h>
+#include <linux/err.h>
 #include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
+#include <linux/kernel.h>
+#include <linux/mod_devicetable.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <sound/pcm.h>
 #include <sound/soc.h>
+#include <sound/soc-dai.h>
+#include <sound/soc-dapm.h>
 
 #define DRV_NAME "max98357a"
 
diff --git a/sound/soc/codecs/pcm1681.c b/sound/soc/codecs/pcm1681.c
index a722a02..477e13d 100644
--- a/sound/soc/codecs/pcm1681.c
+++ b/sound/soc/codecs/pcm1681.c
@@ -118,7 +118,7 @@ static int pcm1681_get_deemph(struct snd_kcontrol *kcontrol,
 	struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
 	struct pcm1681_private *priv = snd_soc_codec_get_drvdata(codec);
 
-	ucontrol->value.enumerated.item[0] = priv->deemph;
+	ucontrol->value.integer.value[0] = priv->deemph;
 
 	return 0;
 }
@@ -129,7 +129,7 @@ static int pcm1681_put_deemph(struct snd_kcontrol *kcontrol,
 	struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
 	struct pcm1681_private *priv = snd_soc_codec_get_drvdata(codec);
 
-	priv->deemph = ucontrol->value.enumerated.item[0];
+	priv->deemph = ucontrol->value.integer.value[0];
 
 	return pcm1681_set_deemph(codec);
 }
diff --git a/sound/soc/codecs/pcm512x.c b/sound/soc/codecs/pcm512x.c
index 9974f20..474cae8 100644
--- a/sound/soc/codecs/pcm512x.c
+++ b/sound/soc/codecs/pcm512x.c
@@ -1156,25 +1156,6 @@ static int pcm512x_hw_params(struct snd_pcm_substream *substream,
 				ret, pcm512x->pll_out);
 			return ret;
 		}
-
-		gpio = PCM512x_G1OE << (4 - 1);
-		ret = regmap_update_bits(pcm512x->regmap, PCM512x_GPIO_EN,
-					 gpio, gpio);
-		if (ret != 0) {
-			dev_err(codec->dev, "Failed to enable gpio %d: %d\n",
-				4, ret);
-			return ret;
-		}
-
-		gpio = PCM512x_GPIO_OUTPUT_1 + 4 - 1;
-		ret = regmap_update_bits(pcm512x->regmap, gpio,
-					 PCM512x_GxSL, PCM512x_GxSL_PLLLK);
-		if (ret != 0) {
-			dev_err(codec->dev,
-				"Failed to output pll lock on %d: %d\n",
-				ret, 4);
-			return ret;
-		}
 	}
 
 	ret = regmap_update_bits(pcm512x->regmap, PCM512x_SYNCHRONIZE,
diff --git a/sound/soc/codecs/rt286.c b/sound/soc/codecs/rt286.c
index f374840..9b541e5 100644
--- a/sound/soc/codecs/rt286.c
+++ b/sound/soc/codecs/rt286.c
@@ -1198,7 +1198,7 @@ static struct dmi_system_id dmi_dell_dino[] = {
 		.ident = "Dell Dino",
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
-			DMI_MATCH(DMI_BOARD_NAME, "0144P8")
+			DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9343")
 		}
 	},
 	{ }
diff --git a/sound/soc/codecs/rt5670.c b/sound/soc/codecs/rt5670.c
index e1a4a45..fd10261 100644
--- a/sound/soc/codecs/rt5670.c
+++ b/sound/soc/codecs/rt5670.c
@@ -225,7 +225,6 @@ static bool rt5670_volatile_register(struct device *dev, unsigned int reg)
 	case RT5670_ADC_EQ_CTRL1:
 	case RT5670_EQ_CTRL1:
 	case RT5670_ALC_CTRL_1:
-	case RT5670_IRQ_CTRL1:
 	case RT5670_IRQ_CTRL2:
 	case RT5670_INT_IRQ_ST:
 	case RT5670_IL_CMD:
@@ -2703,6 +2702,12 @@ static int rt5670_i2c_probe(struct i2c_client *i2c,
 
 	regmap_write(rt5670->regmap, RT5670_RESET, 0);
 
+	regmap_read(rt5670->regmap, RT5670_VENDOR_ID, &val);
+	if (val >= 4)
+		regmap_write(rt5670->regmap, RT5670_GPIO_CTRL3, 0x0980);
+	else
+		regmap_write(rt5670->regmap, RT5670_GPIO_CTRL3, 0x0d00);
+
 	ret = regmap_register_patch(rt5670->regmap, init_list,
 				    ARRAY_SIZE(init_list));
 	if (ret != 0)
diff --git a/sound/soc/codecs/rt5677.c b/sound/soc/codecs/rt5677.c
index 5d0bb87..fb9c20e 100644
--- a/sound/soc/codecs/rt5677.c
+++ b/sound/soc/codecs/rt5677.c
@@ -3284,8 +3284,8 @@ static const struct snd_soc_dapm_route rt5677_dapm_routes[] = {
 	{ "IB45 Bypass Mux", "Bypass", "IB45 Mux" },
 	{ "IB45 Bypass Mux", "Pass SRC", "IB45 Mux" },
 
-	{ "IB6 Mux", "IF1 DAC 6", "IF1 DAC6" },
-	{ "IB6 Mux", "IF2 DAC 6", "IF2 DAC6" },
+	{ "IB6 Mux", "IF1 DAC 6", "IF1 DAC6 Mux" },
+	{ "IB6 Mux", "IF2 DAC 6", "IF2 DAC6 Mux" },
 	{ "IB6 Mux", "SLB DAC 6", "SLB DAC6" },
 	{ "IB6 Mux", "STO4 ADC MIX L", "Stereo4 ADC MIXL" },
 	{ "IB6 Mux", "IF4 DAC L", "IF4 DAC L" },
@@ -3293,8 +3293,8 @@ static const struct snd_soc_dapm_route rt5677_dapm_routes[] = {
 	{ "IB6 Mux", "STO2 ADC MIX L", "Stereo2 ADC MIXL" },
 	{ "IB6 Mux", "STO3 ADC MIX L", "Stereo3 ADC MIXL" },
 
-	{ "IB7 Mux", "IF1 DAC 7", "IF1 DAC7" },
-	{ "IB7 Mux", "IF2 DAC 7", "IF2 DAC7" },
+	{ "IB7 Mux", "IF1 DAC 7", "IF1 DAC7 Mux" },
+	{ "IB7 Mux", "IF2 DAC 7", "IF2 DAC7 Mux" },
 	{ "IB7 Mux", "SLB DAC 7", "SLB DAC7" },
 	{ "IB7 Mux", "STO4 ADC MIX R", "Stereo4 ADC MIXR" },
 	{ "IB7 Mux", "IF4 DAC R", "IF4 DAC R" },
@@ -3635,15 +3635,15 @@ static const struct snd_soc_dapm_route rt5677_dapm_routes[] = {
 	{ "DAC1 FS", NULL, "DAC1 MIXL" },
 	{ "DAC1 FS", NULL, "DAC1 MIXR" },
 
-	{ "DAC2 L Mux", "IF1 DAC 2", "IF1 DAC2" },
-	{ "DAC2 L Mux", "IF2 DAC 2", "IF2 DAC2" },
+	{ "DAC2 L Mux", "IF1 DAC 2", "IF1 DAC2 Mux" },
+	{ "DAC2 L Mux", "IF2 DAC 2", "IF2 DAC2 Mux" },
 	{ "DAC2 L Mux", "IF3 DAC L", "IF3 DAC L" },
 	{ "DAC2 L Mux", "IF4 DAC L", "IF4 DAC L" },
 	{ "DAC2 L Mux", "SLB DAC 2", "SLB DAC2" },
 	{ "DAC2 L Mux", "OB 2", "OutBound2" },
 
-	{ "DAC2 R Mux", "IF1 DAC 3", "IF1 DAC3" },
-	{ "DAC2 R Mux", "IF2 DAC 3", "IF2 DAC3" },
+	{ "DAC2 R Mux", "IF1 DAC 3", "IF1 DAC3 Mux" },
+	{ "DAC2 R Mux", "IF2 DAC 3", "IF2 DAC3 Mux" },
 	{ "DAC2 R Mux", "IF3 DAC R", "IF3 DAC R" },
 	{ "DAC2 R Mux", "IF4 DAC R", "IF4 DAC R" },
 	{ "DAC2 R Mux", "SLB DAC 3", "SLB DAC3" },
@@ -3651,29 +3651,29 @@ static const struct snd_soc_dapm_route rt5677_dapm_routes[] = {
 	{ "DAC2 R Mux", "Haptic Generator", "Haptic Generator" },
 	{ "DAC2 R Mux", "VAD ADC", "VAD ADC Mux" },
 
-	{ "DAC3 L Mux", "IF1 DAC 4", "IF1 DAC4" },
-	{ "DAC3 L Mux", "IF2 DAC 4", "IF2 DAC4" },
+	{ "DAC3 L Mux", "IF1 DAC 4", "IF1 DAC4 Mux" },
+	{ "DAC3 L Mux", "IF2 DAC 4", "IF2 DAC4 Mux" },
 	{ "DAC3 L Mux", "IF3 DAC L", "IF3 DAC L" },
 	{ "DAC3 L Mux", "IF4 DAC L", "IF4 DAC L" },
 	{ "DAC3 L Mux", "SLB DAC 4", "SLB DAC4" },
 	{ "DAC3 L Mux", "OB 4", "OutBound4" },
 
-	{ "DAC3 R Mux", "IF1 DAC 5", "IF1 DAC4" },
-	{ "DAC3 R Mux", "IF2 DAC 5", "IF2 DAC4" },
+	{ "DAC3 R Mux", "IF1 DAC 5", "IF1 DAC5 Mux" },
+	{ "DAC3 R Mux", "IF2 DAC 5", "IF2 DAC5 Mux" },
 	{ "DAC3 R Mux", "IF3 DAC R", "IF3 DAC R" },
 	{ "DAC3 R Mux", "IF4 DAC R", "IF4 DAC R" },
 	{ "DAC3 R Mux", "SLB DAC 5", "SLB DAC5" },
 	{ "DAC3 R Mux", "OB 5", "OutBound5" },
 
-	{ "DAC4 L Mux", "IF1 DAC 6", "IF1 DAC6" },
-	{ "DAC4 L Mux", "IF2 DAC 6", "IF2 DAC6" },
+	{ "DAC4 L Mux", "IF1 DAC 6", "IF1 DAC6 Mux" },
+	{ "DAC4 L Mux", "IF2 DAC 6", "IF2 DAC6 Mux" },
 	{ "DAC4 L Mux", "IF3 DAC L", "IF3 DAC L" },
 	{ "DAC4 L Mux", "IF4 DAC L", "IF4 DAC L" },
 	{ "DAC4 L Mux", "SLB DAC 6", "SLB DAC6" },
 	{ "DAC4 L Mux", "OB 6", "OutBound6" },
 
-	{ "DAC4 R Mux", "IF1 DAC 7", "IF1 DAC7" },
-	{ "DAC4 R Mux", "IF2 DAC 7", "IF2 DAC7" },
+	{ "DAC4 R Mux", "IF1 DAC 7", "IF1 DAC7 Mux" },
+	{ "DAC4 R Mux", "IF2 DAC 7", "IF2 DAC7 Mux" },
 	{ "DAC4 R Mux", "IF3 DAC R", "IF3 DAC R" },
 	{ "DAC4 R Mux", "IF4 DAC R", "IF4 DAC R" },
 	{ "DAC4 R Mux", "SLB DAC 7", "SLB DAC7" },
diff --git a/sound/soc/codecs/sgtl5000.c b/sound/soc/codecs/sgtl5000.c
index e182e65..3593a14 100644
--- a/sound/soc/codecs/sgtl5000.c
+++ b/sound/soc/codecs/sgtl5000.c
@@ -1151,13 +1151,7 @@ static int sgtl5000_set_power_regs(struct snd_soc_codec *codec)
 		/* Enable VDDC charge pump */
 		ana_pwr |= SGTL5000_VDDC_CHRGPMP_POWERUP;
 	} else if (vddio >= 3100 && vdda >= 3100) {
-		/*
-		 * if vddio and vddd > 3.1v,
-		 * charge pump should be clean before set ana_pwr
-		 */
-		snd_soc_update_bits(codec, SGTL5000_CHIP_ANA_POWER,
-				SGTL5000_VDDC_CHRGPMP_POWERUP, 0);
-
+		ana_pwr &= ~SGTL5000_VDDC_CHRGPMP_POWERUP;
 		/* VDDC use VDDIO rail */
 		lreg_ctrl |= SGTL5000_VDDC_ASSN_OVRD;
 		lreg_ctrl |= SGTL5000_VDDC_MAN_ASSN_VDDIO <<
diff --git a/sound/soc/codecs/sn95031.c b/sound/soc/codecs/sn95031.c
index 47b257e..82095d6c 100644
--- a/sound/soc/codecs/sn95031.c
+++ b/sound/soc/codecs/sn95031.c
@@ -538,8 +538,8 @@ static const struct snd_soc_dapm_route sn95031_audio_map[] = {
 	/* speaker map */
 	{ "IHFOUTL", NULL, "Speaker Rail"},
 	{ "IHFOUTR", NULL, "Speaker Rail"},
-	{ "IHFOUTL", "NULL", "Speaker Left Playback"},
-	{ "IHFOUTR", "NULL", "Speaker Right Playback"},
+	{ "IHFOUTL", NULL, "Speaker Left Playback"},
+	{ "IHFOUTR", NULL, "Speaker Right Playback"},
 	{ "Speaker Left Playback", NULL, "Speaker Left Filter"},
 	{ "Speaker Right Playback", NULL, "Speaker Right Filter"},
 	{ "Speaker Left Filter", NULL, "IHFDAC Left"},
diff --git a/sound/soc/codecs/sta32x.c b/sound/soc/codecs/sta32x.c
index 3a1343f..007a0e3 100644
--- a/sound/soc/codecs/sta32x.c
+++ b/sound/soc/codecs/sta32x.c
@@ -106,13 +106,11 @@ static const struct reg_default sta32x_regs[] = {
 };
 
 static const struct regmap_range sta32x_write_regs_range[] = {
-	regmap_reg_range(STA32X_CONFA,  STA32X_AUTO2),
-	regmap_reg_range(STA32X_C1CFG,  STA32X_FDRC2),
+	regmap_reg_range(STA32X_CONFA,  STA32X_FDRC2),
 };
 
 static const struct regmap_range sta32x_read_regs_range[] = {
-	regmap_reg_range(STA32X_CONFA,  STA32X_AUTO2),
-	regmap_reg_range(STA32X_C1CFG,  STA32X_FDRC2),
+	regmap_reg_range(STA32X_CONFA,  STA32X_FDRC2),
 };
 
 static const struct regmap_range sta32x_volatile_regs_range[] = {
diff --git a/sound/soc/codecs/tas5086.c b/sound/soc/codecs/tas5086.c
index 249ef5c..32942be 100644
--- a/sound/soc/codecs/tas5086.c
+++ b/sound/soc/codecs/tas5086.c
@@ -281,7 +281,7 @@ static int tas5086_get_deemph(struct snd_kcontrol *kcontrol,
 	struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
 	struct tas5086_private *priv = snd_soc_codec_get_drvdata(codec);
 
-	ucontrol->value.enumerated.item[0] = priv->deemph;
+	ucontrol->value.integer.value[0] = priv->deemph;
 
 	return 0;
 }
@@ -292,7 +292,7 @@ static int tas5086_put_deemph(struct snd_kcontrol *kcontrol,
 	struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
 	struct tas5086_private *priv = snd_soc_codec_get_drvdata(codec);
 
-	priv->deemph = ucontrol->value.enumerated.item[0];
+	priv->deemph = ucontrol->value.integer.value[0];
 
 	return tas5086_set_deemph(codec);
 }
diff --git a/sound/soc/codecs/wm2000.c b/sound/soc/codecs/wm2000.c
index 8d9de49..21d5402 100644
--- a/sound/soc/codecs/wm2000.c
+++ b/sound/soc/codecs/wm2000.c
@@ -610,7 +610,7 @@ static int wm2000_anc_mode_get(struct snd_kcontrol *kcontrol,
 	struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
 	struct wm2000_priv *wm2000 = dev_get_drvdata(codec->dev);
 
-	ucontrol->value.enumerated.item[0] = wm2000->anc_active;
+	ucontrol->value.integer.value[0] = wm2000->anc_active;
 
 	return 0;
 }
@@ -620,7 +620,7 @@ static int wm2000_anc_mode_put(struct snd_kcontrol *kcontrol,
 {
 	struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
 	struct wm2000_priv *wm2000 = dev_get_drvdata(codec->dev);
-	int anc_active = ucontrol->value.enumerated.item[0];
+	int anc_active = ucontrol->value.integer.value[0];
 	int ret;
 
 	if (anc_active > 1)
@@ -643,7 +643,7 @@ static int wm2000_speaker_get(struct snd_kcontrol *kcontrol,
 	struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
 	struct wm2000_priv *wm2000 = dev_get_drvdata(codec->dev);
 
-	ucontrol->value.enumerated.item[0] = wm2000->spk_ena;
+	ucontrol->value.integer.value[0] = wm2000->spk_ena;
 
 	return 0;
 }
@@ -653,7 +653,7 @@ static int wm2000_speaker_put(struct snd_kcontrol *kcontrol,
 {
 	struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
 	struct wm2000_priv *wm2000 = dev_get_drvdata(codec->dev);
-	int val = ucontrol->value.enumerated.item[0];
+	int val = ucontrol->value.integer.value[0];
 	int ret;
 
 	if (val > 1)
diff --git a/sound/soc/codecs/wm8731.c b/sound/soc/codecs/wm8731.c
index 098c143..c6d1053 100644
--- a/sound/soc/codecs/wm8731.c
+++ b/sound/soc/codecs/wm8731.c
@@ -125,7 +125,7 @@ static int wm8731_get_deemph(struct snd_kcontrol *kcontrol,
 	struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
 	struct wm8731_priv *wm8731 = snd_soc_codec_get_drvdata(codec);
 
-	ucontrol->value.enumerated.item[0] = wm8731->deemph;
+	ucontrol->value.integer.value[0] = wm8731->deemph;
 
 	return 0;
 }
@@ -135,7 +135,7 @@ static int wm8731_put_deemph(struct snd_kcontrol *kcontrol,
 {
 	struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
 	struct wm8731_priv *wm8731 = snd_soc_codec_get_drvdata(codec);
-	int deemph = ucontrol->value.enumerated.item[0];
+	int deemph = ucontrol->value.integer.value[0];
 	int ret = 0;
 
 	if (deemph > 1)
diff --git a/sound/soc/codecs/wm8903.c b/sound/soc/codecs/wm8903.c
index dde462c..04b04f8 100644
--- a/sound/soc/codecs/wm8903.c
+++ b/sound/soc/codecs/wm8903.c
@@ -442,7 +442,7 @@ static int wm8903_get_deemph(struct snd_kcontrol *kcontrol,
 	struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
 	struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
 
-	ucontrol->value.enumerated.item[0] = wm8903->deemph;
+	ucontrol->value.integer.value[0] = wm8903->deemph;
 
 	return 0;
 }
@@ -452,7 +452,7 @@ static int wm8903_put_deemph(struct snd_kcontrol *kcontrol,
 {
 	struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
 	struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
-	int deemph = ucontrol->value.enumerated.item[0];
+	int deemph = ucontrol->value.integer.value[0];
 	int ret = 0;
 
 	if (deemph > 1)
diff --git a/sound/soc/codecs/wm8904.c b/sound/soc/codecs/wm8904.c
index d3b3f57..215e93c 100644
--- a/sound/soc/codecs/wm8904.c
+++ b/sound/soc/codecs/wm8904.c
@@ -525,7 +525,7 @@ static int wm8904_get_deemph(struct snd_kcontrol *kcontrol,
 	struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
 	struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec);
 
-	ucontrol->value.enumerated.item[0] = wm8904->deemph;
+	ucontrol->value.integer.value[0] = wm8904->deemph;
 	return 0;
 }
 
@@ -534,7 +534,7 @@ static int wm8904_put_deemph(struct snd_kcontrol *kcontrol,
 {
 	struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
 	struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec);
-	int deemph = ucontrol->value.enumerated.item[0];
+	int deemph = ucontrol->value.integer.value[0];
 
 	if (deemph > 1)
 		return -EINVAL;
diff --git a/sound/soc/codecs/wm8955.c b/sound/soc/codecs/wm8955.c
index 1ab2d46..00bec91 100644
--- a/sound/soc/codecs/wm8955.c
+++ b/sound/soc/codecs/wm8955.c
@@ -393,7 +393,7 @@ static int wm8955_get_deemph(struct snd_kcontrol *kcontrol,
 	struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
 	struct wm8955_priv *wm8955 = snd_soc_codec_get_drvdata(codec);
 
-	ucontrol->value.enumerated.item[0] = wm8955->deemph;
+	ucontrol->value.integer.value[0] = wm8955->deemph;
 	return 0;
 }
 
@@ -402,7 +402,7 @@ static int wm8955_put_deemph(struct snd_kcontrol *kcontrol,
 {
 	struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
 	struct wm8955_priv *wm8955 = snd_soc_codec_get_drvdata(codec);
-	int deemph = ucontrol->value.enumerated.item[0];
+	int deemph = ucontrol->value.integer.value[0];
 
 	if (deemph > 1)
 		return -EINVAL;
diff --git a/sound/soc/codecs/wm8960.c b/sound/soc/codecs/wm8960.c
index cf8fecf..3035d98 100644
--- a/sound/soc/codecs/wm8960.c
+++ b/sound/soc/codecs/wm8960.c
@@ -184,7 +184,7 @@ static int wm8960_get_deemph(struct snd_kcontrol *kcontrol,
 	struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
 	struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
 
-	ucontrol->value.enumerated.item[0] = wm8960->deemph;
+	ucontrol->value.integer.value[0] = wm8960->deemph;
 	return 0;
 }
 
@@ -193,7 +193,7 @@ static int wm8960_put_deemph(struct snd_kcontrol *kcontrol,
 {
 	struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
 	struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
-	int deemph = ucontrol->value.enumerated.item[0];
+	int deemph = ucontrol->value.integer.value[0];
 
 	if (deemph > 1)
 		return -EINVAL;
diff --git a/sound/soc/codecs/wm9712.c b/sound/soc/codecs/wm9712.c
index 9517571..98c9525 100644
--- a/sound/soc/codecs/wm9712.c
+++ b/sound/soc/codecs/wm9712.c
@@ -180,7 +180,7 @@ static int wm9712_hp_mixer_put(struct snd_kcontrol *kcontrol,
 	struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol);
 	struct snd_soc_codec *codec = snd_soc_dapm_to_codec(dapm);
 	struct wm9712_priv *wm9712 = snd_soc_codec_get_drvdata(codec);
-	unsigned int val = ucontrol->value.enumerated.item[0];
+	unsigned int val = ucontrol->value.integer.value[0];
 	struct soc_mixer_control *mc =
 		(struct soc_mixer_control *)kcontrol->private_value;
 	unsigned int mixer, mask, shift, old;
@@ -193,7 +193,7 @@ static int wm9712_hp_mixer_put(struct snd_kcontrol *kcontrol,
 
 	mutex_lock(&wm9712->lock);
 	old = wm9712->hp_mixer[mixer];
-	if (ucontrol->value.enumerated.item[0])
+	if (ucontrol->value.integer.value[0])
 		wm9712->hp_mixer[mixer] |= mask;
 	else
 		wm9712->hp_mixer[mixer] &= ~mask;
@@ -231,7 +231,7 @@ static int wm9712_hp_mixer_get(struct snd_kcontrol *kcontrol,
 	mixer = mc->shift >> 8;
 	shift = mc->shift & 0xff;
 
-	ucontrol->value.enumerated.item[0] =
+	ucontrol->value.integer.value[0] =
 		(wm9712->hp_mixer[mixer] >> shift) & 1;
 
 	return 0;
diff --git a/sound/soc/codecs/wm9713.c b/sound/soc/codecs/wm9713.c
index 6822291..7955295 100644
--- a/sound/soc/codecs/wm9713.c
+++ b/sound/soc/codecs/wm9713.c
@@ -255,7 +255,7 @@ static int wm9713_hp_mixer_put(struct snd_kcontrol *kcontrol,
 	struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol);
 	struct snd_soc_codec *codec = snd_soc_dapm_to_codec(dapm);
 	struct wm9713_priv *wm9713 = snd_soc_codec_get_drvdata(codec);
-	unsigned int val = ucontrol->value.enumerated.item[0];
+	unsigned int val = ucontrol->value.integer.value[0];
 	struct soc_mixer_control *mc =
 		(struct soc_mixer_control *)kcontrol->private_value;
 	unsigned int mixer, mask, shift, old;
@@ -268,7 +268,7 @@ static int wm9713_hp_mixer_put(struct snd_kcontrol *kcontrol,
 
 	mutex_lock(&wm9713->lock);
 	old = wm9713->hp_mixer[mixer];
-	if (ucontrol->value.enumerated.item[0])
+	if (ucontrol->value.integer.value[0])
 		wm9713->hp_mixer[mixer] |= mask;
 	else
 		wm9713->hp_mixer[mixer] &= ~mask;
@@ -306,7 +306,7 @@ static int wm9713_hp_mixer_get(struct snd_kcontrol *kcontrol,
 	mixer = mc->shift >> 8;
 	shift = mc->shift & 0xff;
 
-	ucontrol->value.enumerated.item[0] =
+	ucontrol->value.integer.value[0] =
 		(wm9713->hp_mixer[mixer] >> shift) & 1;
 
 	return 0;
diff --git a/sound/soc/fsl/fsl_spdif.c b/sound/soc/fsl/fsl_spdif.c
index 75870c0..91eb3ae 100644
--- a/sound/soc/fsl/fsl_spdif.c
+++ b/sound/soc/fsl/fsl_spdif.c
@@ -1049,7 +1049,7 @@ static u32 fsl_spdif_txclk_caldiv(struct fsl_spdif_priv *spdif_priv,
 				enum spdif_txrate index, bool round)
 {
 	const u32 rate[] = { 32000, 44100, 48000, 96000, 192000 };
-	bool is_sysclk = clk == spdif_priv->sysclk;
+	bool is_sysclk = clk_is_match(clk, spdif_priv->sysclk);
 	u64 rate_ideal, rate_actual, sub;
 	u32 sysclk_dfmin, sysclk_dfmax;
 	u32 txclk_df, sysclk_df, arate;
@@ -1143,7 +1143,7 @@ static int fsl_spdif_probe_txclk(struct fsl_spdif_priv *spdif_priv,
 			spdif_priv->txclk_src[index], rate[index]);
 	dev_dbg(&pdev->dev, "use txclk df %d for %dHz sample rate\n",
 			spdif_priv->txclk_df[index], rate[index]);
-	if (spdif_priv->txclk[index] == spdif_priv->sysclk)
+	if (clk_is_match(spdif_priv->txclk[index], spdif_priv->sysclk))
 		dev_dbg(&pdev->dev, "use sysclk df %d for %dHz sample rate\n",
 				spdif_priv->sysclk_df[index], rate[index]);
 	dev_dbg(&pdev->dev, "the best rate for %dHz sample rate is %dHz\n",
diff --git a/sound/soc/fsl/fsl_ssi.c b/sound/soc/fsl/fsl_ssi.c
index 2595611..6b0c8f7 100644
--- a/sound/soc/fsl/fsl_ssi.c
+++ b/sound/soc/fsl/fsl_ssi.c
@@ -603,17 +603,20 @@ static int fsl_ssi_set_bclk(struct snd_pcm_substream *substream,
 	factor = (div2 + 1) * (7 * psr + 1) * 2;
 
 	for (i = 0; i < 255; i++) {
-		/* The bclk rate must be smaller than 1/5 sysclk rate */
-		if (factor * (i + 1) < 5)
-			continue;
-
-		tmprate = freq * factor * (i + 2);
+		tmprate = freq * factor * (i + 1);
 
 		if (baudclk_is_used)
 			clkrate = clk_get_rate(ssi_private->baudclk);
 		else
 			clkrate = clk_round_rate(ssi_private->baudclk, tmprate);
 
+		/*
+		 * Hardware limitation: The bclk rate must be
+		 * never greater than 1/5 IPG clock rate
+		 */
+		if (clkrate * 5 > clk_get_rate(ssi_private->clk))
+			continue;
+
 		clkrate /= factor;
 		afreq = clkrate / (i + 1);
 
@@ -1224,7 +1227,7 @@ static int fsl_ssi_imx_probe(struct platform_device *pdev,
 	ssi_private->dma_params_tx.addr = ssi_private->ssi_phys + CCSR_SSI_STX0;
 	ssi_private->dma_params_rx.addr = ssi_private->ssi_phys + CCSR_SSI_SRX0;
 
-	ret = !of_property_read_u32_array(np, "dmas", dmas, 4);
+	ret = of_property_read_u32_array(np, "dmas", dmas, 4);
 	if (ssi_private->use_dma && !ret && dmas[2] == IMX_DMATYPE_SSI_DUAL) {
 		ssi_private->use_dual_fifo = true;
 		/* When using dual fifo mode, we need to keep watermark
diff --git a/sound/soc/generic/simple-card.c b/sound/soc/generic/simple-card.c
index f7c6734..fb550b5 100644
--- a/sound/soc/generic/simple-card.c
+++ b/sound/soc/generic/simple-card.c
@@ -372,6 +372,11 @@ static int asoc_simple_card_dai_link_of(struct device_node *node,
 			    strlen(dai_link->cpu_dai_name)   +
 			    strlen(dai_link->codec_dai_name) + 2,
 			    GFP_KERNEL);
+	if (!name) {
+		ret = -ENOMEM;
+		goto dai_link_of_err;
+	}
+
 	sprintf(name, "%s-%s", dai_link->cpu_dai_name,
 				dai_link->codec_dai_name);
 	dai_link->name = dai_link->stream_name = name;
diff --git a/sound/soc/intel/sst-atom-controls.h b/sound/soc/intel/sst-atom-controls.h
index dfebfdd..daecc58 100644
--- a/sound/soc/intel/sst-atom-controls.h
+++ b/sound/soc/intel/sst-atom-controls.h
@@ -150,7 +150,7 @@ enum sst_cmd_type {
 
 enum sst_task {
 	SST_TASK_SBA = 1,
-	SST_TASK_MMX,
+	SST_TASK_MMX = 3,
 };
 
 enum sst_type {
diff --git a/sound/soc/intel/sst-haswell-dsp.c b/sound/soc/intel/sst-haswell-dsp.c
index c42ffae..402b728 100644
--- a/sound/soc/intel/sst-haswell-dsp.c
+++ b/sound/soc/intel/sst-haswell-dsp.c
@@ -207,9 +207,6 @@ static int hsw_parse_fw_image(struct sst_fw *sst_fw)
 		module = (void *)module + sizeof(*module) + module->mod_size;
 	}
 
-	/* allocate scratch mem regions */
-	sst_block_alloc_scratch(dsp);
-
 	return 0;
 }
 
diff --git a/sound/soc/intel/sst-haswell-ipc.c b/sound/soc/intel/sst-haswell-ipc.c
index 394af56..863a9ca 100644
--- a/sound/soc/intel/sst-haswell-ipc.c
+++ b/sound/soc/intel/sst-haswell-ipc.c
@@ -1732,6 +1732,7 @@ static void sst_hsw_drop_all(struct sst_hsw *hsw)
 int sst_hsw_dsp_load(struct sst_hsw *hsw)
 {
 	struct sst_dsp *dsp = hsw->dsp;
+	struct sst_fw *sst_fw, *t;
 	int ret;
 
 	dev_dbg(hsw->dev, "loading audio DSP....");
@@ -1748,12 +1749,17 @@ int sst_hsw_dsp_load(struct sst_hsw *hsw)
 		return ret;
 	}
 
-	ret = sst_fw_reload(hsw->sst_fw);
-	if (ret < 0) {
-		dev_err(hsw->dev, "error: SST FW reload failed\n");
-		sst_dsp_dma_put_channel(dsp);
-		return -ENOMEM;
+	list_for_each_entry_safe_reverse(sst_fw, t, &dsp->fw_list, list) {
+		ret = sst_fw_reload(sst_fw);
+		if (ret < 0) {
+			dev_err(hsw->dev, "error: SST FW reload failed\n");
+			sst_dsp_dma_put_channel(dsp);
+			return -ENOMEM;
+		}
 	}
+	ret = sst_block_alloc_scratch(hsw->dsp);
+	if (ret < 0)
+		return -EINVAL;
 
 	sst_dsp_dma_put_channel(dsp);
 	return 0;
@@ -1809,12 +1815,17 @@ int sst_hsw_dsp_runtime_suspend(struct sst_hsw *hsw)
 
 int sst_hsw_dsp_runtime_sleep(struct sst_hsw *hsw)
 {
-	sst_fw_unload(hsw->sst_fw);
-	sst_block_free_scratch(hsw->dsp);
+	struct sst_fw *sst_fw, *t;
+	struct sst_dsp *dsp = hsw->dsp;
+
+	list_for_each_entry_safe(sst_fw, t, &dsp->fw_list, list) {
+		sst_fw_unload(sst_fw);
+	}
+	sst_block_free_scratch(dsp);
 
 	hsw->boot_complete = false;
 
-	sst_dsp_sleep(hsw->dsp);
+	sst_dsp_sleep(dsp);
 
 	return 0;
 }
@@ -1943,6 +1954,11 @@ int sst_hsw_dsp_init(struct device *dev, struct sst_pdata *pdata)
 		goto fw_err;
 	}
 
+	/* allocate scratch mem regions */
+	ret = sst_block_alloc_scratch(hsw->dsp);
+	if (ret < 0)
+		goto boot_err;
+
 	/* wait for DSP boot completion */
 	sst_dsp_boot(hsw->dsp);
 	ret = wait_event_timeout(hsw->boot_wait, hsw->boot_complete,
diff --git a/sound/soc/intel/sst/sst.c b/sound/soc/intel/sst/sst.c
index 8a8d56a..11c5786 100644
--- a/sound/soc/intel/sst/sst.c
+++ b/sound/soc/intel/sst/sst.c
@@ -350,7 +350,9 @@ static inline void sst_save_shim64(struct intel_sst_drv *ctx,
 
 	spin_lock_irqsave(&ctx->ipc_spin_lock, irq_flags);
 
-	shim_regs->imrx = sst_shim_read64(shim, SST_IMRX),
+	shim_regs->imrx = sst_shim_read64(shim, SST_IMRX);
+	shim_regs->csr = sst_shim_read64(shim, SST_CSR);
+
 
 	spin_unlock_irqrestore(&ctx->ipc_spin_lock, irq_flags);
 }
@@ -367,6 +369,7 @@ static inline void sst_restore_shim64(struct intel_sst_drv *ctx,
 	 */
 	spin_lock_irqsave(&ctx->ipc_spin_lock, irq_flags);
 	sst_shim_write64(shim, SST_IMRX, shim_regs->imrx),
+	sst_shim_write64(shim, SST_CSR, shim_regs->csr),
 	spin_unlock_irqrestore(&ctx->ipc_spin_lock, irq_flags);
 }
 
@@ -379,6 +382,10 @@ void sst_configure_runtime_pm(struct intel_sst_drv *ctx)
 	 * initially active. So change the state to active before
 	 * enabling the pm
 	 */
+
+	if (!acpi_disabled)
+		pm_runtime_set_active(ctx->dev);
+
 	pm_runtime_enable(ctx->dev);
 
 	if (acpi_disabled)
@@ -409,6 +416,7 @@ static int intel_sst_runtime_suspend(struct device *dev)
 	synchronize_irq(ctx->irq_num);
 	flush_workqueue(ctx->post_msg_wq);
 
+	ctx->ops->reset(ctx);
 	/* save the shim registers because PMC doesn't save state */
 	sst_save_shim64(ctx, ctx->shim, ctx->shim_regs64);
 
diff --git a/sound/soc/kirkwood/kirkwood-i2s.c b/sound/soc/kirkwood/kirkwood-i2s.c
index def7d82..d194830 100644
--- a/sound/soc/kirkwood/kirkwood-i2s.c
+++ b/sound/soc/kirkwood/kirkwood-i2s.c
@@ -579,7 +579,7 @@ static int kirkwood_i2s_dev_probe(struct platform_device *pdev)
 		if (PTR_ERR(priv->extclk) == -EPROBE_DEFER)
 			return -EPROBE_DEFER;
 	} else {
-		if (priv->extclk == priv->clk) {
+		if (clk_is_match(priv->extclk, priv->clk)) {
 			devm_clk_put(&pdev->dev, priv->extclk);
 			priv->extclk = ERR_PTR(-EINVAL);
 		} else {
diff --git a/sound/soc/omap/omap-hdmi-audio.c b/sound/soc/omap/omap-hdmi-audio.c
index ccfb41c..f7eb42a 100644
--- a/sound/soc/omap/omap-hdmi-audio.c
+++ b/sound/soc/omap/omap-hdmi-audio.c
@@ -352,6 +352,9 @@ static int omap_hdmi_audio_probe(struct platform_device *pdev)
 		return ret;
 
 	card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL);
+	if (!card)
+		return -ENOMEM;
+
 	card->name = devm_kasprintf(dev, GFP_KERNEL,
 				    "HDMI %s", dev_name(ad->dssdev));
 	card->owner = THIS_MODULE;
diff --git a/sound/soc/omap/omap-mcbsp.c b/sound/soc/omap/omap-mcbsp.c
index c7eb9dd..fd99d89 100644
--- a/sound/soc/omap/omap-mcbsp.c
+++ b/sound/soc/omap/omap-mcbsp.c
@@ -530,8 +530,19 @@ static int omap_mcbsp_dai_set_dai_sysclk(struct snd_soc_dai *cpu_dai,
 
 	case OMAP_MCBSP_SYSCLK_CLKX_EXT:
 		regs->srgr2	|= CLKSM;
+		regs->pcr0	|= SCLKME;
+		/*
+		 * If McBSP is master but yet the CLKX/CLKR pin drives the SRG,
+		 * disable output on those pins. This enables to inject the
+		 * reference clock through CLKX/CLKR. For this to work
+		 * set_dai_sysclk() _needs_ to be called after set_dai_fmt().
+		 */
+		regs->pcr0	&= ~CLKXM;
+		break;
 	case OMAP_MCBSP_SYSCLK_CLKR_EXT:
 		regs->pcr0	|= SCLKME;
+		/* Disable ouput on CLKR pin in master mode */
+		regs->pcr0	&= ~CLKRM;
 		break;
 	default:
 		err = -ENODEV;
diff --git a/sound/soc/omap/omap-pcm.c b/sound/soc/omap/omap-pcm.c
index f4b05bc..1343ecb 100644
--- a/sound/soc/omap/omap-pcm.c
+++ b/sound/soc/omap/omap-pcm.c
@@ -201,7 +201,7 @@ static int omap_pcm_new(struct snd_soc_pcm_runtime *rtd)
 	struct snd_pcm *pcm = rtd->pcm;
 	int ret;
 
-	ret = dma_coerce_mask_and_coherent(card->dev, DMA_BIT_MASK(64));
+	ret = dma_coerce_mask_and_coherent(card->dev, DMA_BIT_MASK(32));
 	if (ret)
 		return ret;
 
diff --git a/sound/soc/samsung/Kconfig b/sound/soc/samsung/Kconfig
index 3cebf6c..0632a36 100644
--- a/sound/soc/samsung/Kconfig
+++ b/sound/soc/samsung/Kconfig
@@ -174,7 +174,7 @@ config SND_SOC_SMDK_WM8994_PCM
 
 config SND_SOC_SPEYSIDE
 	tristate "Audio support for Wolfson Speyside"
-	depends on SND_SOC_SAMSUNG && MACH_WLF_CRAGG_6410
+	depends on SND_SOC_SAMSUNG && MACH_WLF_CRAGG_6410 && I2C && SPI_MASTER
 	select SND_SAMSUNG_I2S
 	select SND_SOC_WM8996
 	select SND_SOC_WM9081
@@ -189,7 +189,7 @@ config SND_SOC_TOBERMORY
 
 config SND_SOC_BELLS
 	tristate "Audio support for Wolfson Bells"
-	depends on SND_SOC_SAMSUNG && MACH_WLF_CRAGG_6410 && MFD_ARIZONA
+	depends on SND_SOC_SAMSUNG && MACH_WLF_CRAGG_6410 && MFD_ARIZONA && I2C && SPI_MASTER
 	select SND_SAMSUNG_I2S
 	select SND_SOC_WM5102
 	select SND_SOC_WM5110
@@ -206,7 +206,7 @@ config SND_SOC_LOWLAND
 
 config SND_SOC_LITTLEMILL
 	tristate "Audio support for Wolfson Littlemill"
-	depends on SND_SOC_SAMSUNG && MACH_WLF_CRAGG_6410
+	depends on SND_SOC_SAMSUNG && MACH_WLF_CRAGG_6410 && I2C
 	select SND_SAMSUNG_I2S
 	select MFD_WM8994
 	select SND_SOC_WM8994
@@ -223,7 +223,7 @@ config SND_SOC_SNOW
 
 config SND_SOC_ODROIDX2
 	tristate "Audio support for Odroid-X2 and Odroid-U3"
-	depends on SND_SOC_SAMSUNG
+	depends on SND_SOC_SAMSUNG && I2C
 	select SND_SOC_MAX98090
 	select SND_SAMSUNG_I2S
 	help
@@ -231,6 +231,6 @@ config SND_SOC_ODROIDX2
 
 config SND_SOC_ARNDALE_RT5631_ALC5631
         tristate "Audio support for RT5631(ALC5631) on Arndale Board"
-        depends on SND_SOC_SAMSUNG
+        depends on SND_SOC_SAMSUNG && I2C
         select SND_SAMSUNG_I2S
         select SND_SOC_RT5631
diff --git a/sound/soc/sh/rcar/core.c b/sound/soc/sh/rcar/core.c
index 1b53605..110577c5 100644
--- a/sound/soc/sh/rcar/core.c
+++ b/sound/soc/sh/rcar/core.c
@@ -1252,6 +1252,8 @@ static int rsnd_probe(struct platform_device *pdev)
 			goto exit_snd_probe;
 	}
 
+	dev_set_drvdata(dev, priv);
+
 	/*
 	 *	asoc register
 	 */
@@ -1268,8 +1270,6 @@ static int rsnd_probe(struct platform_device *pdev)
 		goto exit_snd_soc;
 	}
 
-	dev_set_drvdata(dev, priv);
-
 	pm_runtime_enable(dev);
 
 	dev_info(dev, "probed\n");
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 30579ca..e5c9908 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -347,6 +347,8 @@ static ssize_t codec_list_read_file(struct file *file, char __user *user_buf,
 	if (!buf)
 		return -ENOMEM;
 
+	mutex_lock(&client_mutex);
+
 	list_for_each_entry(codec, &codec_list, list) {
 		len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n",
 			       codec->component.name);
@@ -358,6 +360,8 @@ static ssize_t codec_list_read_file(struct file *file, char __user *user_buf,
 		}
 	}
 
+	mutex_unlock(&client_mutex);
+
 	if (ret >= 0)
 		ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret);
 
@@ -382,6 +386,8 @@ static ssize_t dai_list_read_file(struct file *file, char __user *user_buf,
 	if (!buf)
 		return -ENOMEM;
 
+	mutex_lock(&client_mutex);
+
 	list_for_each_entry(component, &component_list, list) {
 		list_for_each_entry(dai, &component->dai_list, list) {
 			len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n",
@@ -395,6 +401,8 @@ static ssize_t dai_list_read_file(struct file *file, char __user *user_buf,
 		}
 	}
 
+	mutex_unlock(&client_mutex);
+
 	ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret);
 
 	kfree(buf);
@@ -418,6 +426,8 @@ static ssize_t platform_list_read_file(struct file *file,
 	if (!buf)
 		return -ENOMEM;
 
+	mutex_lock(&client_mutex);
+
 	list_for_each_entry(platform, &platform_list, list) {
 		len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n",
 			       platform->component.name);
@@ -429,6 +439,8 @@ static ssize_t platform_list_read_file(struct file *file,
 		}
 	}
 
+	mutex_unlock(&client_mutex);
+
 	ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret);
 
 	kfree(buf);
@@ -836,6 +848,8 @@ static struct snd_soc_component *soc_find_component(
 {
 	struct snd_soc_component *component;
 
+	lockdep_assert_held(&client_mutex);
+
 	list_for_each_entry(component, &component_list, list) {
 		if (of_node) {
 			if (component->dev->of_node == of_node)
@@ -854,6 +868,8 @@ static struct snd_soc_dai *snd_soc_find_dai(
 	struct snd_soc_component *component;
 	struct snd_soc_dai *dai;
 
+	lockdep_assert_held(&client_mutex);
+
 	/* Find CPU DAI from registered DAIs*/
 	list_for_each_entry(component, &component_list, list) {
 		if (dlc->of_node && component->dev->of_node != dlc->of_node)
@@ -1508,6 +1524,7 @@ static int snd_soc_instantiate_card(struct snd_soc_card *card)
 	struct snd_soc_codec *codec;
 	int ret, i, order;
 
+	mutex_lock(&client_mutex);
 	mutex_lock_nested(&card->mutex, SND_SOC_CARD_CLASS_INIT);
 
 	/* bind DAIs */
@@ -1662,6 +1679,7 @@ static int snd_soc_instantiate_card(struct snd_soc_card *card)
 	card->instantiated = 1;
 	snd_soc_dapm_sync(&card->dapm);
 	mutex_unlock(&card->mutex);
+	mutex_unlock(&client_mutex);
 
 	return 0;
 
@@ -1680,6 +1698,7 @@ card_probe_error:
 
 base_error:
 	mutex_unlock(&card->mutex);
+	mutex_unlock(&client_mutex);
 
 	return ret;
 }
@@ -2713,13 +2732,6 @@ static void snd_soc_component_del_unlocked(struct snd_soc_component *component)
 	list_del(&component->list);
 }
 
-static void snd_soc_component_del(struct snd_soc_component *component)
-{
-	mutex_lock(&client_mutex);
-	snd_soc_component_del_unlocked(component);
-	mutex_unlock(&client_mutex);
-}
-
 int snd_soc_register_component(struct device *dev,
 			       const struct snd_soc_component_driver *cmpnt_drv,
 			       struct snd_soc_dai_driver *dai_drv,
@@ -2767,14 +2779,17 @@ void snd_soc_unregister_component(struct device *dev)
 {
 	struct snd_soc_component *cmpnt;
 
+	mutex_lock(&client_mutex);
 	list_for_each_entry(cmpnt, &component_list, list) {
 		if (dev == cmpnt->dev && cmpnt->registered_as_component)
 			goto found;
 	}
+	mutex_unlock(&client_mutex);
 	return;
 
 found:
-	snd_soc_component_del(cmpnt);
+	snd_soc_component_del_unlocked(cmpnt);
+	mutex_unlock(&client_mutex);
 	snd_soc_component_cleanup(cmpnt);
 	kfree(cmpnt);
 }
@@ -2882,10 +2897,14 @@ struct snd_soc_platform *snd_soc_lookup_platform(struct device *dev)
 {
 	struct snd_soc_platform *platform;
 
+	mutex_lock(&client_mutex);
 	list_for_each_entry(platform, &platform_list, list) {
-		if (dev == platform->dev)
+		if (dev == platform->dev) {
+			mutex_unlock(&client_mutex);
 			return platform;
+		}
 	}
+	mutex_unlock(&client_mutex);
 
 	return NULL;
 }
@@ -3090,15 +3109,15 @@ void snd_soc_unregister_codec(struct device *dev)
 {
 	struct snd_soc_codec *codec;
 
+	mutex_lock(&client_mutex);
 	list_for_each_entry(codec, &codec_list, list) {
 		if (dev == codec->dev)
 			goto found;
 	}
+	mutex_unlock(&client_mutex);
 	return;
 
 found:
-
-	mutex_lock(&client_mutex);
 	list_del(&codec->list);
 	snd_soc_component_del_unlocked(&codec->component);
 	mutex_unlock(&client_mutex);
diff --git a/sound/usb/line6/playback.c b/sound/usb/line6/playback.c
index 05dee69..97ed593 100644
--- a/sound/usb/line6/playback.c
+++ b/sound/usb/line6/playback.c
@@ -39,7 +39,7 @@ static void change_volume(struct urb *urb_out, int volume[],
 		for (; p < buf_end; ++p) {
 			short pv = le16_to_cpu(*p);
 			int val = (pv * volume[chn & 1]) >> 8;
-			pv = clamp(val, 0x7fff, -0x8000);
+			pv = clamp(val, -0x8000, 0x7fff);
 			*p = cpu_to_le16(pv);
 			++chn;
 		}
@@ -54,7 +54,7 @@ static void change_volume(struct urb *urb_out, int volume[],
 
 			val = p[0] + (p[1] << 8) + ((signed char)p[2] << 16);
 			val = (val * volume[chn & 1]) >> 8;
-			val = clamp(val, 0x7fffff, -0x800000);
+			val = clamp(val, -0x800000, 0x7fffff);
 			p[0] = val;
 			p[1] = val >> 8;
 			p[2] = val >> 16;
@@ -126,7 +126,7 @@ static void add_monitor_signal(struct urb *urb_out, unsigned char *signal,
 			short pov = le16_to_cpu(*po);
 			short piv = le16_to_cpu(*pi);
 			int val = pov + ((piv * volume) >> 8);
-			pov = clamp(val, 0x7fff, -0x8000);
+			pov = clamp(val, -0x8000, 0x7fff);
 			*po = cpu_to_le16(pov);
 		}
 	}
diff --git a/sound/usb/mixer_quirks.c b/sound/usb/mixer_quirks.c
index dc9df00..337c317 100644
--- a/sound/usb/mixer_quirks.c
+++ b/sound/usb/mixer_quirks.c
@@ -192,6 +192,7 @@ static const struct rc_config {
 	{ USB_ID(0x041e, 0x3040), 2, 2, 6, 6,  2,  0x6e91 }, /* Live! 24-bit */
 	{ USB_ID(0x041e, 0x3042), 0, 1, 1, 1,  1,  0x000d }, /* Usb X-Fi S51 */
 	{ USB_ID(0x041e, 0x30df), 0, 1, 1, 1,  1,  0x000d }, /* Usb X-Fi S51 Pro */
+	{ USB_ID(0x041e, 0x3237), 0, 1, 1, 1,  1,  0x000d }, /* Usb X-Fi S51 Pro */
 	{ USB_ID(0x041e, 0x3048), 2, 2, 6, 6,  2,  0x6e91 }, /* Toshiba SB0500 */
 };
 
diff --git a/sound/usb/quirks-table.h b/sound/usb/quirks-table.h
index 67d4765..07f984d 100644
--- a/sound/usb/quirks-table.h
+++ b/sound/usb/quirks-table.h
@@ -1773,6 +1773,36 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 		}
 	}
 },
+{
+	USB_DEVICE(0x0582, 0x0159),
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
+		/* .vendor_name = "Roland", */
+		/* .product_name = "UA-22", */
+		.ifnum = QUIRK_ANY_INTERFACE,
+		.type = QUIRK_COMPOSITE,
+		.data = (const struct snd_usb_audio_quirk[]) {
+			{
+				.ifnum = 0,
+				.type = QUIRK_AUDIO_STANDARD_INTERFACE
+			},
+			{
+				.ifnum = 1,
+				.type = QUIRK_AUDIO_STANDARD_INTERFACE
+			},
+			{
+				.ifnum = 2,
+				.type = QUIRK_MIDI_FIXED_ENDPOINT,
+				.data = & (const struct snd_usb_midi_endpoint_info) {
+					.out_cables = 0x0001,
+					.in_cables = 0x0001
+				}
+			},
+			{
+				.ifnum = -1
+			}
+		}
+	}
+},
 /* this catches most recent vendor-specific Roland devices */
 {
 	.match_flags = USB_DEVICE_ID_MATCH_VENDOR |
diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c
index 753a47d..9a28365 100644
--- a/sound/usb/quirks.c
+++ b/sound/usb/quirks.c
@@ -1113,8 +1113,13 @@ void snd_usb_set_format_quirk(struct snd_usb_substream *subs,
 
 bool snd_usb_get_sample_rate_quirk(struct snd_usb_audio *chip)
 {
-	/* MS Lifecam HD-5000 doesn't support reading the sample rate. */
-	return chip->usb_id == USB_ID(0x045E, 0x076D);
+	/* devices which do not support reading the sample rate. */
+	switch (chip->usb_id) {
+	case USB_ID(0x045E, 0x076D): /* MS Lifecam HD-5000 */
+	case USB_ID(0x04D8, 0xFEEA): /* Benchmark DAC1 Pre */
+		return true;
+	}
+	return false;
 }
 
 /* Marantz/Denon USB DACs need a vendor cmd to switch
diff --git a/tools/iio/Makefile b/tools/iio/Makefile
new file mode 100644
index 0000000..bf7ae6d
--- /dev/null
+++ b/tools/iio/Makefile
@@ -0,0 +1,16 @@
+CC = gcc
+CFLAGS = -Wall -g -D_GNU_SOURCE
+
+all: iio_event_monitor lsiio generic_buffer
+
+iio_event_monitor: iio_event_monitor.o iio_utils.o
+
+lsiio: lsiio.o iio_utils.o
+
+generic_buffer: generic_buffer.o iio_utils.o
+
+%.o: %.c iio_utils.h
+
+.PHONY: clean
+clean:
+	rm -f *.o iio_event_monitor lsiio generic_buffer
diff --git a/drivers/staging/iio/Documentation/generic_buffer.c b/tools/iio/generic_buffer.c
index de4647e..f805493 100644
--- a/drivers/staging/iio/Documentation/generic_buffer.c
+++ b/tools/iio/generic_buffer.c
@@ -18,9 +18,8 @@
  *
  */
 
-#define _GNU_SOURCE
-
 #include <unistd.h>
+#include <stdlib.h>
 #include <dirent.h>
 #include <fcntl.h>
 #include <stdio.h>
@@ -72,7 +71,7 @@ void print2byte(int input, struct iio_channel_info *info)
 	 * Shift before conversion to avoid sign extension
 	 * of left aligned data
 	 */
-	input = input >> info->shift;
+	input >>= info->shift;
 	if (info->is_signed) {
 		int16_t val = input;
 
diff --git a/drivers/staging/iio/Documentation/iio_event_monitor.c b/tools/iio/iio_event_monitor.c
index 72c96aa..427c271 100644
--- a/drivers/staging/iio/Documentation/iio_event_monitor.c
+++ b/tools/iio/iio_event_monitor.c
@@ -16,9 +16,8 @@
  *
  */
 
-#define _GNU_SOURCE
-
 #include <unistd.h>
+#include <stdlib.h>
 #include <stdbool.h>
 #include <stdio.h>
 #include <errno.h>
@@ -28,6 +27,7 @@
 #include <sys/ioctl.h>
 #include "iio_utils.h"
 #include <linux/iio/events.h>
+#include <linux/iio/types.h>
 
 static const char * const iio_chan_type_name_spec[] = {
 	[IIO_VOLTAGE] = "voltage",
diff --git a/drivers/staging/iio/Documentation/iio_utils.h b/tools/iio/iio_utils.c
index 568eff0..6f64521 100644
--- a/drivers/staging/iio/Documentation/iio_utils.h
+++ b/tools/iio/iio_utils.c
@@ -6,37 +6,48 @@
  * under the terms of the GNU General Public License version 2 as published by
  * the Free Software Foundation.
  */
+#ifndef _IIO_UTILS_H
+#define _IIO_UTILS_H
 
 #include <string.h>
 #include <stdlib.h>
-#include <ctype.h>
 #include <stdio.h>
 #include <stdint.h>
 #include <dirent.h>
 #include <errno.h>
-
-/* Made up value to limit allocation sizes */
-#define IIO_MAX_NAME_LENGTH 30
-
-#define FORMAT_SCAN_ELEMENTS_DIR "%s/scan_elements"
-#define FORMAT_TYPE_FILE "%s_type"
+#include <ctype.h>
+#include "iio_utils.h"
 
 const char *iio_dir = "/sys/bus/iio/devices/";
 
+static char * const iio_direction[] = {
+	"in",
+	"out",
+};
+
 /**
  * iioutils_break_up_name() - extract generic name from full channel name
  * @full_name: the full channel name
  * @generic_name: the output generic channel name
  **/
-inline int iioutils_break_up_name(const char *full_name,
+int iioutils_break_up_name(const char *full_name,
 				  char **generic_name)
 {
 	char *current;
 	char *w, *r;
-	char *working;
+	char *working, *prefix = "";
+	int i;
 
-	current = strdup(full_name);
+	for (i = 0; i < sizeof(iio_direction) / sizeof(iio_direction[0]); i++)
+		if (!strncmp(full_name, iio_direction[i],
+			     strlen(iio_direction[i]))) {
+			prefix = iio_direction[i];
+			break;
+		}
+
+	current = strdup(full_name + strlen(prefix) + 1);
 	working = strtok(current, "_\0");
+
 	w = working;
 	r = working;
 
@@ -48,40 +59,13 @@ inline int iioutils_break_up_name(const char *full_name,
 		r++;
 	}
 	*w = '\0';
-	*generic_name = strdup(working);
+	asprintf(generic_name, "%s_%s", prefix, working);
 	free(current);
 
 	return 0;
 }
 
 /**
- * struct iio_channel_info - information about a given channel
- * @name: channel name
- * @generic_name: general name for channel type
- * @scale: scale factor to be applied for conversion to si units
- * @offset: offset to be applied for conversion to si units
- * @index: the channel index in the buffer output
- * @bytes: number of bytes occupied in buffer output
- * @mask: a bit mask for the raw output
- * @is_signed: is the raw value stored signed
- * @enabled: is this channel enabled
- **/
-struct iio_channel_info {
-	char *name;
-	char *generic_name;
-	float scale;
-	float offset;
-	unsigned index;
-	unsigned bytes;
-	unsigned bits_used;
-	unsigned shift;
-	uint64_t mask;
-	unsigned be;
-	unsigned is_signed;
-	unsigned location;
-};
-
-/**
  * iioutils_get_type() - find and process _type attribute data
  * @is_signed: output whether channel is signed
  * @bytes: output how many bytes the channel storage occupies
@@ -91,7 +75,7 @@ struct iio_channel_info {
  * @name: the channel name
  * @generic_name: the channel type name
  **/
-inline int iioutils_get_type(unsigned *is_signed,
+int iioutils_get_type(unsigned *is_signed,
 			     unsigned *bytes,
 			     unsigned *bits_used,
 			     unsigned *shift,
@@ -195,7 +179,7 @@ error_ret:
 	return ret;
 }
 
-inline int iioutils_get_param_float(float *output,
+int iioutils_get_param_float(float *output,
 				    const char *param_name,
 				    const char *device_dir,
 				    const char *name,
@@ -259,7 +243,7 @@ error_ret:
  *
  **/
 
-inline void bsort_channel_array_by_index(struct iio_channel_info **ci_array,
+void bsort_channel_array_by_index(struct iio_channel_info **ci_array,
 					 int cnt)
 {
 
@@ -280,7 +264,7 @@ inline void bsort_channel_array_by_index(struct iio_channel_info **ci_array,
  * @device_dir: the IIO device directory in sysfs
  * @
  **/
-inline int build_channel_array(const char *device_dir,
+int build_channel_array(const char *device_dir,
 			      struct iio_channel_info **ci_array,
 			      int *counter)
 {
@@ -443,7 +427,7 @@ error_ret:
  *
  * Typical types this is used for are device and trigger.
  **/
-inline int find_type_by_name(const char *name, const char *type)
+int find_type_by_name(const char *name, const char *type)
 {
 	const struct dirent *ent;
 	int number, numstrlen;
@@ -502,7 +486,7 @@ inline int find_type_by_name(const char *name, const char *type)
 	return -ENODEV;
 }
 
-inline int _write_sysfs_int(char *filename, char *basedir, int val, int verify)
+int _write_sysfs_int(char *filename, char *basedir, int val, int verify)
 {
 	int ret = 0;
 	FILE *sysfsfp;
@@ -681,3 +665,5 @@ error_free:
 	free(temp);
 	return ret;
 }
+
+#endif /* _IIO_UTILS_H */
diff --git a/tools/iio/iio_utils.h b/tools/iio/iio_utils.h
new file mode 100644
index 0000000..1bc837b
--- /dev/null
+++ b/tools/iio/iio_utils.h
@@ -0,0 +1,71 @@
+#ifndef _IIO_UTILS_H_
+#define _IIO_UTILS_H_
+
+/* IIO - useful set of util functionality
+ *
+ * Copyright (c) 2008 Jonathan Cameron
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ */
+
+#include <stdint.h>
+
+/* Made up value to limit allocation sizes */
+#define IIO_MAX_NAME_LENGTH 30
+
+#define FORMAT_SCAN_ELEMENTS_DIR "%s/scan_elements"
+#define FORMAT_TYPE_FILE "%s_type"
+
+extern const char *iio_dir;
+
+/**
+ * struct iio_channel_info - information about a given channel
+ * @name: channel name
+ * @generic_name: general name for channel type
+ * @scale: scale factor to be applied for conversion to si units
+ * @offset: offset to be applied for conversion to si units
+ * @index: the channel index in the buffer output
+ * @bytes: number of bytes occupied in buffer output
+ * @mask: a bit mask for the raw output
+ * @is_signed: is the raw value stored signed
+ * @enabled: is this channel enabled
+ **/
+struct iio_channel_info {
+	char *name;
+	char *generic_name;
+	float scale;
+	float offset;
+	unsigned index;
+	unsigned bytes;
+	unsigned bits_used;
+	unsigned shift;
+	uint64_t mask;
+	unsigned be;
+	unsigned is_signed;
+	unsigned location;
+};
+
+int iioutils_break_up_name(const char *full_name, char **generic_name);
+int iioutils_get_type(unsigned *is_signed, unsigned *bytes,
+					  unsigned *bits_used, unsigned *shift,
+					  uint64_t *mask, unsigned *be,
+					  const char *device_dir, const char *name,
+					  const char *generic_name);
+int iioutils_get_param_float(float *output, const char *param_name,
+							 const char *device_dir, const char *name,
+							 const char *generic_name);
+void bsort_channel_array_by_index(struct iio_channel_info **ci_array, int cnt);
+int build_channel_array(const char *device_dir,
+						struct iio_channel_info **ci_array, int *counter);
+int find_type_by_name(const char *name, const char *type);
+int write_sysfs_int(char *filename, char *basedir, int val);
+int write_sysfs_int_and_verify(char *filename, char *basedir, int val);
+int write_sysfs_string_and_verify(char *filename, char *basedir, char *val);
+int write_sysfs_string(char *filename, char *basedir, char *val);
+int read_sysfs_posint(char *filename, char *basedir);
+int read_sysfs_float(char *filename, char *basedir, float *val);
+int read_sysfs_string(const char *filename, const char *basedir, char *str);
+
+#endif /* _IIO_UTILS_H_ */
diff --git a/drivers/staging/iio/Documentation/lsiio.c b/tools/iio/lsiio.c
index 98a0de0..c585440 100644
--- a/drivers/staging/iio/Documentation/lsiio.c
+++ b/tools/iio/lsiio.c
@@ -95,12 +95,7 @@ static int dump_one_trigger(const char *dev_dir_name)
 static void dump_devices(void)
 {
 	const struct dirent *ent;
-	int number, numstrlen;
-
-	FILE *nameFile;
 	DIR *dp;
-	char thisname[IIO_MAX_NAME_LENGTH];
-	char *filename;
 
 	dp = opendir(iio_dir);
 	if (dp == NULL) {
diff --git a/tools/perf/bench/mem-memcpy-x86-64-asm-def.h b/tools/perf/bench/mem-memcpy-x86-64-asm-def.h
index d66ab79..8c0c1a2 100644
--- a/tools/perf/bench/mem-memcpy-x86-64-asm-def.h
+++ b/tools/perf/bench/mem-memcpy-x86-64-asm-def.h
@@ -1,12 +1,12 @@
 
-MEMCPY_FN(__memcpy,
+MEMCPY_FN(memcpy_orig,
 	"x86-64-unrolled",
 	"unrolled memcpy() in arch/x86/lib/memcpy_64.S")
 
-MEMCPY_FN(memcpy_c,
+MEMCPY_FN(__memcpy,
 	"x86-64-movsq",
 	"movsq-based memcpy() in arch/x86/lib/memcpy_64.S")
 
-MEMCPY_FN(memcpy_c_e,
+MEMCPY_FN(memcpy_erms,
 	"x86-64-movsb",
 	"movsb-based memcpy() in arch/x86/lib/memcpy_64.S")
diff --git a/tools/perf/bench/mem-memcpy-x86-64-asm.S b/tools/perf/bench/mem-memcpy-x86-64-asm.S
index fcd9cf0..e4c2c30 100644
--- a/tools/perf/bench/mem-memcpy-x86-64-asm.S
+++ b/tools/perf/bench/mem-memcpy-x86-64-asm.S
@@ -1,8 +1,6 @@
 #define memcpy MEMCPY /* don't hide glibc's memcpy() */
 #define altinstr_replacement text
 #define globl p2align 4; .globl
-#define Lmemcpy_c globl memcpy_c; memcpy_c
-#define Lmemcpy_c_e globl memcpy_c_e; memcpy_c_e
 #include "../../../arch/x86/lib/memcpy_64.S"
 /*
  * We need to provide note.GNU-stack section, saying that we want
diff --git a/tools/perf/bench/mem-memcpy.c b/tools/perf/bench/mem-memcpy.c
index 6c14afe..d3dfb79 100644
--- a/tools/perf/bench/mem-memcpy.c
+++ b/tools/perf/bench/mem-memcpy.c
@@ -36,7 +36,7 @@ static const struct option options[] = {
 		    "Specify length of memory to copy. "
 		    "Available units: B, KB, MB, GB and TB (upper and lower)"),
 	OPT_STRING('r', "routine", &routine, "default",
-		    "Specify routine to copy"),
+		    "Specify routine to copy, \"all\" runs all available routines"),
 	OPT_INTEGER('i', "iterations", &iterations,
 		    "repeat memcpy() invocation this number of times"),
 	OPT_BOOLEAN('c', "cycle", &use_cycle,
@@ -135,55 +135,16 @@ struct bench_mem_info {
 	const char *const *usage;
 };
 
-static int bench_mem_common(int argc, const char **argv,
-		     const char *prefix __maybe_unused,
-		     struct bench_mem_info *info)
+static void __bench_mem_routine(struct bench_mem_info *info, int r_idx, size_t len, double totallen)
 {
-	int i;
-	size_t len;
-	double totallen;
+	const struct routine *r = &info->routines[r_idx];
 	double result_bps[2];
 	u64 result_cycle[2];
 
-	argc = parse_options(argc, argv, options,
-			     info->usage, 0);
-
-	if (no_prefault && only_prefault) {
-		fprintf(stderr, "Invalid options: -o and -n are mutually exclusive\n");
-		return 1;
-	}
-
-	if (use_cycle)
-		init_cycle();
-
-	len = (size_t)perf_atoll((char *)length_str);
-	totallen = (double)len * iterations;
-
 	result_cycle[0] = result_cycle[1] = 0ULL;
 	result_bps[0] = result_bps[1] = 0.0;
 
-	if ((s64)len <= 0) {
-		fprintf(stderr, "Invalid length:%s\n", length_str);
-		return 1;
-	}
-
-	/* same to without specifying either of prefault and no-prefault */
-	if (only_prefault && no_prefault)
-		only_prefault = no_prefault = false;
-
-	for (i = 0; info->routines[i].name; i++) {
-		if (!strcmp(info->routines[i].name, routine))
-			break;
-	}
-	if (!info->routines[i].name) {
-		printf("Unknown routine:%s\n", routine);
-		printf("Available routines...\n");
-		for (i = 0; info->routines[i].name; i++) {
-			printf("\t%s ... %s\n",
-			       info->routines[i].name, info->routines[i].desc);
-		}
-		return 1;
-	}
+	printf("Routine %s (%s)\n", r->name, r->desc);
 
 	if (bench_format == BENCH_FORMAT_DEFAULT)
 		printf("# Copying %s Bytes ...\n\n", length_str);
@@ -191,28 +152,17 @@ static int bench_mem_common(int argc, const char **argv,
 	if (!only_prefault && !no_prefault) {
 		/* show both of results */
 		if (use_cycle) {
-			result_cycle[0] =
-				info->do_cycle(&info->routines[i], len, false);
-			result_cycle[1] =
-				info->do_cycle(&info->routines[i], len, true);
+			result_cycle[0] = info->do_cycle(r, len, false);
+			result_cycle[1] = info->do_cycle(r, len, true);
 		} else {
-			result_bps[0] =
-				info->do_gettimeofday(&info->routines[i],
-						len, false);
-			result_bps[1] =
-				info->do_gettimeofday(&info->routines[i],
-						len, true);
+			result_bps[0]   = info->do_gettimeofday(r, len, false);
+			result_bps[1]   = info->do_gettimeofday(r, len, true);
 		}
 	} else {
-		if (use_cycle) {
-			result_cycle[pf] =
-				info->do_cycle(&info->routines[i],
-						len, only_prefault);
-		} else {
-			result_bps[pf] =
-				info->do_gettimeofday(&info->routines[i],
-						len, only_prefault);
-		}
+		if (use_cycle)
+			result_cycle[pf] = info->do_cycle(r, len, only_prefault);
+		else
+			result_bps[pf] = info->do_gettimeofday(r, len, only_prefault);
 	}
 
 	switch (bench_format) {
@@ -265,6 +215,60 @@ static int bench_mem_common(int argc, const char **argv,
 		die("unknown format: %d\n", bench_format);
 		break;
 	}
+}
+
+static int bench_mem_common(int argc, const char **argv,
+		     const char *prefix __maybe_unused,
+		     struct bench_mem_info *info)
+{
+	int i;
+	size_t len;
+	double totallen;
+
+	argc = parse_options(argc, argv, options,
+			     info->usage, 0);
+
+	if (no_prefault && only_prefault) {
+		fprintf(stderr, "Invalid options: -o and -n are mutually exclusive\n");
+		return 1;
+	}
+
+	if (use_cycle)
+		init_cycle();
+
+	len = (size_t)perf_atoll((char *)length_str);
+	totallen = (double)len * iterations;
+
+	if ((s64)len <= 0) {
+		fprintf(stderr, "Invalid length:%s\n", length_str);
+		return 1;
+	}
+
+	/* same to without specifying either of prefault and no-prefault */
+	if (only_prefault && no_prefault)
+		only_prefault = no_prefault = false;
+
+	if (!strncmp(routine, "all", 3)) {
+		for (i = 0; info->routines[i].name; i++)
+			__bench_mem_routine(info, i, len, totallen);
+		return 0;
+	}
+
+	for (i = 0; info->routines[i].name; i++) {
+		if (!strcmp(info->routines[i].name, routine))
+			break;
+	}
+	if (!info->routines[i].name) {
+		printf("Unknown routine:%s\n", routine);
+		printf("Available routines...\n");
+		for (i = 0; info->routines[i].name; i++) {
+			printf("\t%s ... %s\n",
+			       info->routines[i].name, info->routines[i].desc);
+		}
+		return 1;
+	}
+
+	__bench_mem_routine(info, i, len, totallen);
 
 	return 0;
 }
@@ -289,7 +293,7 @@ static u64 do_memcpy_cycle(const struct routine *r, size_t len, bool prefault)
 	memcpy_t fn = r->fn.memcpy;
 	int i;
 
-	memcpy_alloc_mem(&src, &dst, len);
+	memcpy_alloc_mem(&dst, &src, len);
 
 	if (prefault)
 		fn(dst, src, len);
@@ -312,7 +316,7 @@ static double do_memcpy_gettimeofday(const struct routine *r, size_t len,
 	void *src = NULL, *dst = NULL;
 	int i;
 
-	memcpy_alloc_mem(&src, &dst, len);
+	memcpy_alloc_mem(&dst, &src, len);
 
 	if (prefault)
 		fn(dst, src, len);
diff --git a/tools/perf/bench/mem-memset-x86-64-asm-def.h b/tools/perf/bench/mem-memset-x86-64-asm-def.h
index a71dff9..f02d028 100644
--- a/tools/perf/bench/mem-memset-x86-64-asm-def.h
+++ b/tools/perf/bench/mem-memset-x86-64-asm-def.h
@@ -1,12 +1,12 @@
 
-MEMSET_FN(__memset,
+MEMSET_FN(memset_orig,
 	"x86-64-unrolled",
 	"unrolled memset() in arch/x86/lib/memset_64.S")
 
-MEMSET_FN(memset_c,
+MEMSET_FN(__memset,
 	"x86-64-stosq",
 	"movsq-based memset() in arch/x86/lib/memset_64.S")
 
-MEMSET_FN(memset_c_e,
+MEMSET_FN(memset_erms,
 	"x86-64-stosb",
 	"movsb-based memset() in arch/x86/lib/memset_64.S")
diff --git a/tools/perf/bench/mem-memset-x86-64-asm.S b/tools/perf/bench/mem-memset-x86-64-asm.S
index 9e5af89..de27878 100644
--- a/tools/perf/bench/mem-memset-x86-64-asm.S
+++ b/tools/perf/bench/mem-memset-x86-64-asm.S
@@ -1,8 +1,6 @@
 #define memset MEMSET /* don't hide glibc's memset() */
 #define altinstr_replacement text
 #define globl p2align 4; .globl
-#define Lmemset_c globl memset_c; memset_c
-#define Lmemset_c_e globl memset_c_e; memset_c_e
 #include "../../../arch/x86/lib/memset_64.S"
 
 /*
diff --git a/tools/perf/config/Makefile.arch b/tools/perf/config/Makefile.arch
index ff95a68..ac8721f 100644
--- a/tools/perf/config/Makefile.arch
+++ b/tools/perf/config/Makefile.arch
@@ -21,6 +21,10 @@ ifeq ($(RAW_ARCH),x86_64)
   endif
 endif
 
+ifeq ($(RAW_ARCH),sparc64)
+  ARCH ?= sparc
+endif
+
 ARCH ?= $(RAW_ARCH)
 
 LP64 := $(shell echo __LP64__ | ${CC} ${CFLAGS} -E -x c - | tail -n 1)
diff --git a/tools/perf/config/feature-checks/Makefile b/tools/perf/config/feature-checks/Makefile
index 42ac05a..b32ff33 100644
--- a/tools/perf/config/feature-checks/Makefile
+++ b/tools/perf/config/feature-checks/Makefile
@@ -49,7 +49,7 @@ test-hello.bin:
 	$(BUILD)
 
 test-pthread-attr-setaffinity-np.bin:
-	$(BUILD) -Werror -lpthread
+	$(BUILD) -D_GNU_SOURCE -Werror -lpthread
 
 test-stackprotector-all.bin:
 	$(BUILD) -Werror -fstack-protector-all
diff --git a/tools/perf/config/feature-checks/test-pthread-attr-setaffinity-np.c b/tools/perf/config/feature-checks/test-pthread-attr-setaffinity-np.c
index 0a0d3ec..2b81b72 100644
--- a/tools/perf/config/feature-checks/test-pthread-attr-setaffinity-np.c
+++ b/tools/perf/config/feature-checks/test-pthread-attr-setaffinity-np.c
@@ -5,10 +5,11 @@ int main(void)
 {
 	int ret = 0;
 	pthread_attr_t thread_attr;
+	cpu_set_t cs;
 
 	pthread_attr_init(&thread_attr);
 	/* don't care abt exact args, just the API itself in libpthread */
-	ret = pthread_attr_setaffinity_np(&thread_attr, 0, NULL);
+	ret = pthread_attr_setaffinity_np(&thread_attr, sizeof(cs), &cs);
 
 	return ret;
 }
diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index 61bf912..9d9db3b 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -30,6 +30,8 @@ static int disasm_line__parse(char *line, char **namep, char **rawp);
 
 static void ins__delete(struct ins_operands *ops)
 {
+	if (ops == NULL)
+		return;
 	zfree(&ops->source.raw);
 	zfree(&ops->source.name);
 	zfree(&ops->target.raw);
diff --git a/tools/perf/util/cloexec.c b/tools/perf/util/cloexec.c
index 47b78b3..6da965b 100644
--- a/tools/perf/util/cloexec.c
+++ b/tools/perf/util/cloexec.c
@@ -25,6 +25,10 @@ static int perf_flag_probe(void)
 	if (cpu < 0)
 		cpu = 0;
 
+	/*
+	 * Using -1 for the pid is a workaround to avoid gratuitous jump label
+	 * changes.
+	 */
 	while (1) {
 		/* check cloexec flag */
 		fd = sys_perf_event_open(&attr, pid, cpu, -1,
@@ -47,16 +51,24 @@ static int perf_flag_probe(void)
 		  err, strerror_r(err, sbuf, sizeof(sbuf)));
 
 	/* not supported, confirm error related to PERF_FLAG_FD_CLOEXEC */
-	fd = sys_perf_event_open(&attr, pid, cpu, -1, 0);
+	while (1) {
+		fd = sys_perf_event_open(&attr, pid, cpu, -1, 0);
+		if (fd < 0 && pid == -1 && errno == EACCES) {
+			pid = 0;
+			continue;
+		}
+		break;
+	}
 	err = errno;
 
+	if (fd >= 0)
+		close(fd);
+
 	if (WARN_ONCE(fd < 0 && err != EBUSY,
 		      "perf_event_open(..., 0) failed unexpectedly with error %d (%s)\n",
 		      err, strerror_r(err, sbuf, sizeof(sbuf))))
 		return -1;
 
-	close(fd);
-
 	return 0;
 }
 
diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h
index c94a9e0..e99a676 100644
--- a/tools/perf/util/evlist.h
+++ b/tools/perf/util/evlist.h
@@ -28,7 +28,7 @@ struct perf_mmap {
 	int		 mask;
 	int		 refcnt;
 	unsigned int	 prev;
-	char		 event_copy[PERF_SAMPLE_MAX_SIZE];
+	char		 event_copy[PERF_SAMPLE_MAX_SIZE] __attribute__((aligned(8)));
 };
 
 struct perf_evlist {
diff --git a/tools/perf/util/include/asm/alternative-asm.h b/tools/perf/util/include/asm/alternative-asm.h
index 6789d788..3a3a0f1 100644
--- a/tools/perf/util/include/asm/alternative-asm.h
+++ b/tools/perf/util/include/asm/alternative-asm.h
@@ -4,5 +4,6 @@
 /* Just disable it so we can build arch/x86/lib/memcpy_64.S for perf bench: */
 
 #define altinstruction_entry #
+#define ALTERNATIVE_2 #
 
 #endif
diff --git a/tools/perf/util/symbol-elf.c b/tools/perf/util/symbol-elf.c
index b24f9d8..33b7a2a 100644
--- a/tools/perf/util/symbol-elf.c
+++ b/tools/perf/util/symbol-elf.c
@@ -11,6 +11,11 @@
 #include <symbol/kallsyms.h>
 #include "debug.h"
 
+#ifndef EM_AARCH64
+#define EM_AARCH64	183  /* ARM 64 bit */
+#endif
+
+
 #ifdef HAVE_CPLUS_DEMANGLE_SUPPORT
 extern char *cplus_demangle(const char *, int);
 
diff --git a/tools/power/cpupower/Makefile b/tools/power/cpupower/Makefile
index 3ed7c04..2e2ba2e 100644
--- a/tools/power/cpupower/Makefile
+++ b/tools/power/cpupower/Makefile
@@ -209,7 +209,7 @@ $(OUTPUT)%.o: %.c
 
 $(OUTPUT)cpupower: $(UTIL_OBJS) $(OUTPUT)libcpupower.so.$(LIB_MAJ)
 	$(ECHO) "  CC      " $@
-	$(QUIET) $(CC) $(CFLAGS) $(LDFLAGS) $(UTIL_OBJS) -lcpupower -Wl,-rpath=./ -lrt -lpci -L$(OUTPUT) -o $@
+	$(QUIET) $(CC) $(CFLAGS) $(LDFLAGS) $(UTIL_OBJS) -lcpupower -lrt -lpci -L$(OUTPUT) -o $@
 	$(QUIET) $(STRIPCMD) $@
 
 $(OUTPUT)po/$(PACKAGE).pot: $(UTIL_SRC)
diff --git a/tools/testing/selftests/Makefile b/tools/testing/selftests/Makefile
index 4e51122..95abddc 100644
--- a/tools/testing/selftests/Makefile
+++ b/tools/testing/selftests/Makefile
@@ -17,11 +17,20 @@ TARGETS += sysctl
 TARGETS += timers
 TARGETS += user
 TARGETS += vm
+TARGETS += x86
 #Please keep the TARGETS list alphabetically sorted
 
 TARGETS_HOTPLUG = cpu-hotplug
 TARGETS_HOTPLUG += memory-hotplug
 
+# Clear LDFLAGS and MAKEFLAGS if called from main
+# Makefile to avoid test build failures when test
+# Makefile doesn't have explicit build rules.
+ifeq (1,$(MAKELEVEL))
+undefine LDFLAGS
+override MAKEFLAGS =
+endif
+
 all:
 	for TARGET in $(TARGETS); do \
 		make -C $$TARGET; \
@@ -47,7 +56,40 @@ clean_hotplug:
 		make -C $$TARGET clean; \
 	done;
 
+INSTALL_PATH ?= install
+INSTALL_PATH := $(abspath $(INSTALL_PATH))
+ALL_SCRIPT := $(INSTALL_PATH)/run_kselftest.sh
+
+install:
+ifdef INSTALL_PATH
+	@# Ask all targets to install their files
+	mkdir -p $(INSTALL_PATH)
+	for TARGET in $(TARGETS); do \
+		mkdir -p $(INSTALL_PATH)/$$TARGET ; \
+		make -C $$TARGET INSTALL_PATH=$(INSTALL_PATH)/$$TARGET install; \
+	done;
+
+	@# Ask all targets to emit their test scripts
+	echo "#!/bin/bash" > $(ALL_SCRIPT)
+	echo "cd \$$(dirname \$$0)" >> $(ALL_SCRIPT)
+	echo "ROOT=\$$PWD" >> $(ALL_SCRIPT)
+
+	for TARGET in $(TARGETS); do \
+		echo "echo ; echo Running tests in $$TARGET" >> $(ALL_SCRIPT); \
+		echo "echo ========================================" >> $(ALL_SCRIPT); \
+		echo "cd $$TARGET" >> $(ALL_SCRIPT); \
+		make -s --no-print-directory -C $$TARGET emit_tests >> $(ALL_SCRIPT); \
+		echo "cd \$$ROOT" >> $(ALL_SCRIPT); \
+	done;
+
+	chmod u+x $(ALL_SCRIPT)
+else
+	$(error Error: set INSTALL_PATH to use install)
+endif
+
 clean:
 	for TARGET in $(TARGETS); do \
 		make -C $$TARGET clean; \
 	done;
+
+.PHONY: install
diff --git a/tools/testing/selftests/breakpoints/Makefile b/tools/testing/selftests/breakpoints/Makefile
index e18b42b..1822356 100644
--- a/tools/testing/selftests/breakpoints/Makefile
+++ b/tools/testing/selftests/breakpoints/Makefile
@@ -16,8 +16,9 @@ else
 	echo "Not an x86 target, can't build breakpoints selftests"
 endif
 
-run_tests:
-	@./breakpoint_test || echo "breakpoints selftests: [FAIL]"
+TEST_PROGS := breakpoint_test
+
+include ../lib.mk
 
 clean:
 	rm -fr breakpoint_test
diff --git a/tools/testing/selftests/cpu-hotplug/Makefile b/tools/testing/selftests/cpu-hotplug/Makefile
index e9c28d8..fe1f991 100644
--- a/tools/testing/selftests/cpu-hotplug/Makefile
+++ b/tools/testing/selftests/cpu-hotplug/Makefile
@@ -1,9 +1,10 @@
 all:
 
-run_tests:
-	@/bin/bash ./on-off-test.sh || echo "cpu-hotplug selftests: [FAIL]"
+TEST_PROGS := cpu-on-off-test.sh
+
+include ../lib.mk
 
 run_full_test:
-	@/bin/bash ./on-off-test.sh -a || echo "cpu-hotplug selftests: [FAIL]"
+	@/bin/bash ./cpu-on-off-test.sh -a || echo "cpu-hotplug selftests: [FAIL]"
 
 clean:
diff --git a/tools/testing/selftests/cpu-hotplug/on-off-test.sh b/tools/testing/selftests/cpu-hotplug/cpu-on-off-test.sh
index 98b1d65..98b1d65 100644..100755
--- a/tools/testing/selftests/cpu-hotplug/on-off-test.sh
+++ b/tools/testing/selftests/cpu-hotplug/cpu-on-off-test.sh
diff --git a/tools/testing/selftests/efivarfs/Makefile b/tools/testing/selftests/efivarfs/Makefile
index 29e8c6b..736c3dd 100644
--- a/tools/testing/selftests/efivarfs/Makefile
+++ b/tools/testing/selftests/efivarfs/Makefile
@@ -1,12 +1,13 @@
-CC = $(CROSS_COMPILE)gcc
 CFLAGS = -Wall
 
 test_objs = open-unlink create-read
 
 all: $(test_objs)
 
-run_tests: all
-	@/bin/bash ./efivarfs.sh || echo "efivarfs selftests: [FAIL]"
+TEST_PROGS := efivarfs.sh
+TEST_FILES := $(test_objs)
+
+include ../lib.mk
 
 clean:
 	rm -f $(test_objs)
diff --git a/tools/testing/selftests/efivarfs/efivarfs.sh b/tools/testing/selftests/efivarfs/efivarfs.sh
index 77edcdc..77edcdc 100644..100755
--- a/tools/testing/selftests/efivarfs/efivarfs.sh
+++ b/tools/testing/selftests/efivarfs/efivarfs.sh
diff --git a/tools/testing/selftests/exec/Makefile b/tools/testing/selftests/exec/Makefile
index 66dfc2c..4edb7d0 100644
--- a/tools/testing/selftests/exec/Makefile
+++ b/tools/testing/selftests/exec/Makefile
@@ -1,4 +1,3 @@
-CC = $(CROSS_COMPILE)gcc
 CFLAGS = -Wall
 BINARIES = execveat
 DEPS = execveat.symlink execveat.denatured script subdir
@@ -18,8 +17,12 @@ execveat.denatured: execveat
 %: %.c
 	$(CC) $(CFLAGS) -o $@ $^
 
-run_tests: all
-	./execveat
+TEST_PROGS := execveat
+TEST_FILES := $(DEPS)
+
+include ../lib.mk
+
+override EMIT_TESTS := echo "mkdir -p subdir; (./execveat && echo \"selftests: execveat [PASS]\") || echo \"selftests: execveat [FAIL]\""
 
 clean:
 	rm -rf $(BINARIES) $(DEPS) subdir.moved execveat.moved xxxxx*
diff --git a/tools/testing/selftests/exec/execveat.c b/tools/testing/selftests/exec/execveat.c
index e238c95..8d5d1d2e 100644
--- a/tools/testing/selftests/exec/execveat.c
+++ b/tools/testing/selftests/exec/execveat.c
@@ -30,7 +30,7 @@ static int execveat_(int fd, const char *path, char **argv, char **envp,
 #ifdef __NR_execveat
 	return syscall(__NR_execveat, fd, path, argv, envp, flags);
 #else
-	errno = -ENOSYS;
+	errno = ENOSYS;
 	return -1;
 #endif
 }
@@ -234,6 +234,14 @@ static int run_tests(void)
 	int fd_cloexec = open_or_die("execveat", O_RDONLY|O_CLOEXEC);
 	int fd_script_cloexec = open_or_die("script", O_RDONLY|O_CLOEXEC);
 
+	/* Check if we have execveat at all, and bail early if not */
+	errno = 0;
+	execveat_(-1, NULL, NULL, NULL, 0);
+	if (errno == ENOSYS) {
+		printf("[FAIL] ENOSYS calling execveat - no kernel support?\n");
+		return 1;
+	}
+
 	/* Change file position to confirm it doesn't affect anything */
 	lseek(fd, 10, SEEK_SET);
 
diff --git a/tools/testing/selftests/firmware/Makefile b/tools/testing/selftests/firmware/Makefile
index e23cce0..9bf8223 100644
--- a/tools/testing/selftests/firmware/Makefile
+++ b/tools/testing/selftests/firmware/Makefile
@@ -3,25 +3,9 @@
 # No binaries, but make sure arg-less "make" doesn't trigger "run_tests"
 all:
 
-fw_filesystem:
-	@if /bin/sh ./fw_filesystem.sh ; then \
-                echo "fw_filesystem: ok"; \
-        else \
-                echo "fw_filesystem: [FAIL]"; \
-                exit 1; \
-        fi
+TEST_PROGS := fw_filesystem.sh fw_userhelper.sh
 
-fw_userhelper:
-	@if /bin/sh ./fw_userhelper.sh ; then \
-                echo "fw_userhelper: ok"; \
-        else \
-                echo "fw_userhelper: [FAIL]"; \
-                exit 1; \
-        fi
-
-run_tests: all fw_filesystem fw_userhelper
+include ../lib.mk
 
 # Nothing to clean up.
 clean:
-
-.PHONY: all clean run_tests fw_filesystem fw_userhelper
diff --git a/tools/testing/selftests/firmware/fw_filesystem.sh b/tools/testing/selftests/firmware/fw_filesystem.sh
index 3fc6c10..3fc6c10 100644..100755
--- a/tools/testing/selftests/firmware/fw_filesystem.sh
+++ b/tools/testing/selftests/firmware/fw_filesystem.sh
diff --git a/tools/testing/selftests/firmware/fw_userhelper.sh b/tools/testing/selftests/firmware/fw_userhelper.sh
index 6efbade..6efbade 100644..100755
--- a/tools/testing/selftests/firmware/fw_userhelper.sh
+++ b/tools/testing/selftests/firmware/fw_userhelper.sh
diff --git a/tools/testing/selftests/ftrace/Makefile b/tools/testing/selftests/ftrace/Makefile
index 76cc9f1..3467206 100644
--- a/tools/testing/selftests/ftrace/Makefile
+++ b/tools/testing/selftests/ftrace/Makefile
@@ -1,7 +1,8 @@
 all:
 
-run_tests:
-	@/bin/sh ./ftracetest || echo "ftrace selftests: [FAIL]"
+TEST_PROGS := ftracetest
+
+include ../lib.mk
 
 clean:
 	rm -rf logs/*
diff --git a/tools/testing/selftests/ftrace/test.d/00basic/basic4.tc b/tools/testing/selftests/ftrace/test.d/00basic/basic4.tc
index fd9c49a..aa51f6c 100644
--- a/tools/testing/selftests/ftrace/test.d/00basic/basic4.tc
+++ b/tools/testing/selftests/ftrace/test.d/00basic/basic4.tc
@@ -2,4 +2,4 @@
 # description: Basic event tracing check
 test -f available_events -a -f set_event -a -d events
 # check scheduler events are available
-grep -q sched available_events && exit 0 || exit -1
\ No newline at end of file
+grep -q sched available_events && exit 0 || exit $FAIL
diff --git a/tools/testing/selftests/ftrace/test.d/event/event-enable.tc b/tools/testing/selftests/ftrace/test.d/event/event-enable.tc
index 668616d..87eb9d6 100644
--- a/tools/testing/selftests/ftrace/test.d/event/event-enable.tc
+++ b/tools/testing/selftests/ftrace/test.d/event/event-enable.tc
@@ -9,7 +9,11 @@ do_reset() {
 fail() { #msg
     do_reset
     echo $1
-    exit -1
+    exit $FAIL
+}
+
+yield() {
+    ping localhost -c 1 || sleep .001 || usleep 1 || sleep 1
 }
 
 if [ ! -f set_event -o ! -d events/sched ]; then
@@ -21,7 +25,8 @@ reset_tracer
 do_reset
 
 echo 'sched:sched_switch' > set_event
-usleep 1
+
+yield
 
 count=`cat trace | grep sched_switch | wc -l`
 if [ $count -eq 0 ]; then
@@ -31,7 +36,8 @@ fi
 do_reset
 
 echo 1 > events/sched/sched_switch/enable
-usleep 1
+
+yield
 
 count=`cat trace | grep sched_switch | wc -l`
 if [ $count -eq 0 ]; then
@@ -41,7 +47,8 @@ fi
 do_reset
 
 echo 0 > events/sched/sched_switch/enable
-usleep 1
+
+yield
 
 count=`cat trace | grep sched_switch | wc -l`
 if [ $count -ne 0 ]; then
diff --git a/tools/testing/selftests/ftrace/test.d/event/subsystem-enable.tc b/tools/testing/selftests/ftrace/test.d/event/subsystem-enable.tc
index 655c415..ced27ef 100644
--- a/tools/testing/selftests/ftrace/test.d/event/subsystem-enable.tc
+++ b/tools/testing/selftests/ftrace/test.d/event/subsystem-enable.tc
@@ -9,7 +9,11 @@ do_reset() {
 fail() { #msg
     do_reset
     echo $1
-    exit -1
+    exit $FAIL
+}
+
+yield() {
+    ping localhost -c 1 || sleep .001 || usleep 1 || sleep 1
 }
 
 if [ ! -f set_event -o ! -d events/sched ]; then
@@ -21,7 +25,8 @@ reset_tracer
 do_reset
 
 echo 'sched:*' > set_event
-usleep 1
+
+yield
 
 count=`cat trace | grep -v ^# | awk '{ print $5 }' | sort -u | wc -l`
 if [ $count -lt 3 ]; then
@@ -31,7 +36,8 @@ fi
 do_reset
 
 echo 1 > events/sched/enable
-usleep 1
+
+yield
 
 count=`cat trace | grep -v ^# | awk '{ print $5 }' | sort -u | wc -l`
 if [ $count -lt 3 ]; then
@@ -41,7 +47,8 @@ fi
 do_reset
 
 echo 0 > events/sched/enable
-usleep 1
+
+yield
 
 count=`cat trace | grep -v ^# | awk '{ print $5 }' | sort -u | wc -l`
 if [ $count -ne 0 ]; then
diff --git a/tools/testing/selftests/ftrace/test.d/event/toplevel-enable.tc b/tools/testing/selftests/ftrace/test.d/event/toplevel-enable.tc
index 4808457..0bb5df3 100644
--- a/tools/testing/selftests/ftrace/test.d/event/toplevel-enable.tc
+++ b/tools/testing/selftests/ftrace/test.d/event/toplevel-enable.tc
@@ -9,7 +9,11 @@ do_reset() {
 fail() { #msg
     do_reset
     echo $1
-    exit -1
+    exit $FAIL
+}
+
+yield() {
+    ping localhost -c 1 || sleep .001 || usleep 1 || sleep 1
 }
 
 if [ ! -f available_events -o ! -f set_event -o ! -d events ]; then
@@ -21,6 +25,9 @@ reset_tracer
 do_reset
 
 echo '*:*' > set_event
+
+yield
+
 count=`cat trace | grep -v ^# | wc -l`
 if [ $count -eq 0 ]; then
     fail "none of events are recorded"
@@ -29,6 +36,9 @@ fi
 do_reset
 
 echo 1 > events/enable
+
+yield
+
 count=`cat trace | grep -v ^# | wc -l`
 if [ $count -eq 0 ]; then
     fail "none of events are recorded"
@@ -37,6 +47,9 @@ fi
 do_reset
 
 echo 0 > events/enable
+
+yield
+
 count=`cat trace | grep -v ^# | wc -l`
 if [ $count -ne 0 ]; then
     fail "any of events should not be recorded"
diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/fgraph-filter-stack.tc b/tools/testing/selftests/ftrace/test.d/ftrace/fgraph-filter-stack.tc
index c15e018..15c2dba 100644
--- a/tools/testing/selftests/ftrace/test.d/ftrace/fgraph-filter-stack.tc
+++ b/tools/testing/selftests/ftrace/test.d/ftrace/fgraph-filter-stack.tc
@@ -16,7 +16,9 @@ fi
 
 do_reset() {
     reset_tracer
-    echo 0 > /proc/sys/kernel/stack_tracer_enabled
+    if [ -e /proc/sys/kernel/stack_tracer_enabled ]; then
+	    echo 0 > /proc/sys/kernel/stack_tracer_enabled
+    fi
     enable_tracing
     clear_trace
     echo > set_ftrace_filter
@@ -25,7 +27,7 @@ do_reset() {
 fail() { # msg
     do_reset
     echo $1
-    exit -1
+    exit $FAIL
 }
 
 disable_tracing
diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/fgraph-filter.tc b/tools/testing/selftests/ftrace/test.d/ftrace/fgraph-filter.tc
index 6af5f63..0ab2189 100644
--- a/tools/testing/selftests/ftrace/test.d/ftrace/fgraph-filter.tc
+++ b/tools/testing/selftests/ftrace/test.d/ftrace/fgraph-filter.tc
@@ -17,7 +17,7 @@ do_reset() {
 fail() { # msg
     do_reset
     echo $1
-    exit -1
+    exit $FAIL
 }
 
 disable_tracing
diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func_profiler.tc b/tools/testing/selftests/ftrace/test.d/ftrace/func_profiler.tc
index 2e719cb..7808336 100644
--- a/tools/testing/selftests/ftrace/test.d/ftrace/func_profiler.tc
+++ b/tools/testing/selftests/ftrace/test.d/ftrace/func_profiler.tc
@@ -31,7 +31,7 @@ fail() { # mesg
     reset_tracer
     echo > set_ftrace_filter
     echo $1
-    exit -1
+    exit $FAIL
 }
 
 echo "Testing function tracer with profiler:"
diff --git a/tools/testing/selftests/gen_kselftest_tar.sh b/tools/testing/selftests/gen_kselftest_tar.sh
new file mode 100755
index 0000000..17d5bd0
--- /dev/null
+++ b/tools/testing/selftests/gen_kselftest_tar.sh
@@ -0,0 +1,55 @@
+#!/bin/bash
+#
+# gen_kselftest_tar
+# Generate kselftest tarball
+# Author: Shuah Khan <shuahkh@osg.samsung.com>
+# Copyright (C) 2015 Samsung Electronics Co., Ltd.
+
+# This software may be freely redistributed under the terms of the GNU
+# General Public License (GPLv2).
+
+# main
+main()
+{
+	if [ "$#" -eq 0 ]; then
+		echo "$0: Generating default compression gzip"
+		copts="cvzf"
+		ext=".tar.gz"
+	else
+		case "$1" in
+			tar)
+				copts="cvf"
+				ext=".tar"
+				;;
+			targz)
+				copts="cvzf"
+				ext=".tar.gz"
+				;;
+			tarbz2)
+				copts="cvjf"
+				ext=".tar.bz2"
+				;;
+			tarxz)
+				copts="cvJf"
+				ext=".tar.xz"
+				;;
+			*)
+			echo "Unknown tarball format $1"
+			exit 1
+			;;
+	esac
+	fi
+
+	install_dir=./kselftest
+
+# Run install using INSTALL_KSFT_PATH override to generate install
+# directory
+./kselftest_install.sh
+tar $copts kselftest${ext} $install_dir
+echo "Kselftest archive kselftest${ext} created!"
+
+# clean up install directory
+rm -rf kselftest
+}
+
+main "$@"
diff --git a/tools/testing/selftests/ipc/Makefile b/tools/testing/selftests/ipc/Makefile
index 74bbefd..25d2e70 100644
--- a/tools/testing/selftests/ipc/Makefile
+++ b/tools/testing/selftests/ipc/Makefile
@@ -12,14 +12,11 @@ endif
 CFLAGS += -I../../../../usr/include/
 
 all:
-ifeq ($(ARCH),x86)
-	gcc $(CFLAGS) msgque.c -o msgque_test
-else
-	echo "Not an x86 target, can't build msgque selftest"
-endif
+	$(CC) $(CFLAGS) msgque.c -o msgque_test
+
+TEST_PROGS := msgque_test
 
-run_tests: all
-	./msgque_test
+include ../lib.mk
 
 clean:
 	rm -fr ./msgque_test
diff --git a/tools/testing/selftests/kcmp/Makefile b/tools/testing/selftests/kcmp/Makefile
index ff0eefd..2ae7450 100644
--- a/tools/testing/selftests/kcmp/Makefile
+++ b/tools/testing/selftests/kcmp/Makefile
@@ -1,10 +1,10 @@
-CC := $(CROSS_COMPILE)$(CC)
 CFLAGS += -I../../../../usr/include/
 
 all: kcmp_test
 
-run_tests: all
-	@./kcmp_test || echo "kcmp_test: [FAIL]"
+TEST_PROGS := kcmp_test
+
+include ../lib.mk
 
 clean:
 	$(RM) kcmp_test kcmp-test-file
diff --git a/tools/testing/selftests/kselftest_install.sh b/tools/testing/selftests/kselftest_install.sh
new file mode 100755
index 0000000..1555fbd
--- /dev/null
+++ b/tools/testing/selftests/kselftest_install.sh
@@ -0,0 +1,37 @@
+#!/bin/bash
+#
+# Kselftest Install
+# Install kselftest tests
+# Author: Shuah Khan <shuahkh@osg.samsung.com>
+# Copyright (C) 2015 Samsung Electronics Co., Ltd.
+
+# This software may be freely redistributed under the terms of the GNU
+# General Public License (GPLv2).
+
+install_loc=`pwd`
+
+main()
+{
+	if [ $(basename $install_loc) !=  "selftests" ]; then
+		echo "$0: Please run it in selftests directory ..."
+		exit 1;
+	fi
+	if [ "$#" -eq 0 ]; then
+		echo "$0: Installing in default location - $install_loc ..."
+	elif [ ! -d "$1" ]; then
+		echo "$0: $1 doesn't exist!!"
+		exit 1;
+	else
+		install_loc=$1
+		echo "$0: Installing in specified location - $install_loc ..."
+	fi
+
+	install_dir=$install_loc/kselftest
+
+# Create install directory
+	mkdir -p $install_dir
+# Build tests
+	INSTALL_PATH=$install_dir make install
+}
+
+main "$@"
diff --git a/tools/testing/selftests/lib.mk b/tools/testing/selftests/lib.mk
new file mode 100644
index 0000000..2194155
--- /dev/null
+++ b/tools/testing/selftests/lib.mk
@@ -0,0 +1,35 @@
+# This mimics the top-level Makefile. We do it explicitly here so that this
+# Makefile can operate with or without the kbuild infrastructure.
+CC := $(CROSS_COMPILE)gcc
+
+define RUN_TESTS
+	@for TEST in $(TEST_PROGS); do \
+		(./$$TEST && echo "selftests: $$TEST [PASS]") || echo "selftests: $$TEST [FAIL]"; \
+	done;
+endef
+
+run_tests: all
+	$(RUN_TESTS)
+
+define INSTALL_RULE
+	mkdir -p $(INSTALL_PATH)
+	install -t $(INSTALL_PATH) $(TEST_PROGS) $(TEST_PROGS_EXTENDED) $(TEST_FILES)
+endef
+
+install: all
+ifdef INSTALL_PATH
+	$(INSTALL_RULE)
+else
+	$(error Error: set INSTALL_PATH to use install)
+endif
+
+define EMIT_TESTS
+	@for TEST in $(TEST_PROGS); do \
+		echo "(./$$TEST && echo \"selftests: $$TEST [PASS]\") || echo \"selftests: $$TEST [FAIL]\""; \
+	done;
+endef
+
+emit_tests:
+	$(EMIT_TESTS)
+
+.PHONY: run_tests all clean install emit_tests
diff --git a/tools/testing/selftests/memfd/Makefile b/tools/testing/selftests/memfd/Makefile
index b80cd10..3e7eb79 100644
--- a/tools/testing/selftests/memfd/Makefile
+++ b/tools/testing/selftests/memfd/Makefile
@@ -1,17 +1,19 @@
+CC = $(CROSS_COMPILE)gcc
 CFLAGS += -D_FILE_OFFSET_BITS=64
 CFLAGS += -I../../../../include/uapi/
 CFLAGS += -I../../../../include/
+CFLAGS += -I../../../../usr/include/
 
 all:
-	gcc $(CFLAGS) memfd_test.c -o memfd_test
+	$(CC) $(CFLAGS) memfd_test.c -o memfd_test
 
-run_tests: all
-	gcc $(CFLAGS) memfd_test.c -o memfd_test
-	@./memfd_test || echo "memfd_test: [FAIL]"
+TEST_PROGS := memfd_test
+
+include ../lib.mk
 
 build_fuse:
-	gcc $(CFLAGS) fuse_mnt.c `pkg-config fuse --cflags --libs` -o fuse_mnt
-	gcc $(CFLAGS) fuse_test.c -o fuse_test
+	$(CC) $(CFLAGS) fuse_mnt.c `pkg-config fuse --cflags --libs` -o fuse_mnt
+	$(CC) $(CFLAGS) fuse_test.c -o fuse_test
 
 run_fuse: build_fuse
 	@./run_fuse_test.sh || echo "fuse_test: [FAIL]"
diff --git a/tools/testing/selftests/memory-hotplug/Makefile b/tools/testing/selftests/memory-hotplug/Makefile
index d46b8d4..afb2624 100644
--- a/tools/testing/selftests/memory-hotplug/Makefile
+++ b/tools/testing/selftests/memory-hotplug/Makefile
@@ -1,9 +1,12 @@
 all:
 
-run_tests:
-	@/bin/bash ./on-off-test.sh -r 2 || echo "memory-hotplug selftests: [FAIL]"
+include ../lib.mk
+
+TEST_PROGS := mem-on-off-test.sh
+override RUN_TESTS := ./mem-on-off-test.sh -r 2 || echo "selftests: memory-hotplug [FAIL]"
+override EMIT_TESTS := echo "$(RUN_TESTS)"
 
 run_full_test:
-	@/bin/bash ./on-off-test.sh || echo "memory-hotplug selftests: [FAIL]"
+	@/bin/bash ./mem-on-off-test.sh || echo "memory-hotplug selftests: [FAIL]"
 
 clean:
diff --git a/tools/testing/selftests/memory-hotplug/on-off-test.sh b/tools/testing/selftests/memory-hotplug/mem-on-off-test.sh
index 6cddde0..6cddde0 100644..100755
--- a/tools/testing/selftests/memory-hotplug/on-off-test.sh
+++ b/tools/testing/selftests/memory-hotplug/mem-on-off-test.sh
diff --git a/tools/testing/selftests/mount/.gitignore b/tools/testing/selftests/mount/.gitignore
new file mode 100644
index 0000000..856ad41
--- /dev/null
+++ b/tools/testing/selftests/mount/.gitignore
@@ -0,0 +1 @@
+unprivileged-remount-test
diff --git a/tools/testing/selftests/mount/Makefile b/tools/testing/selftests/mount/Makefile
index 337d853..95580a9 100644
--- a/tools/testing/selftests/mount/Makefile
+++ b/tools/testing/selftests/mount/Makefile
@@ -1,17 +1,16 @@
 # Makefile for mount selftests.
-
+CFLAGS = -Wall \
+         -O2
 all: unprivileged-remount-test
 
 unprivileged-remount-test: unprivileged-remount-test.c
-	gcc -Wall -O2 unprivileged-remount-test.c -o unprivileged-remount-test
+	$(CC) $(CFLAGS) unprivileged-remount-test.c -o unprivileged-remount-test
 
-# Allow specific tests to be selected.
-test_unprivileged_remount: unprivileged-remount-test
-	@if [ -f /proc/self/uid_map ] ; then ./unprivileged-remount-test ; fi
+include ../lib.mk
 
-run_tests: all test_unprivileged_remount
+TEST_PROGS := unprivileged-remount-test
+override RUN_TESTS := if [ -f /proc/self/uid_map ] ; then ./unprivileged-remount-test ; fi
+override EMIT_TESTS := echo "$(RUN_TESTS)"
 
 clean:
 	rm -f unprivileged-remount-test
-
-.PHONY: all test_unprivileged_remount
diff --git a/tools/testing/selftests/mqueue/Makefile b/tools/testing/selftests/mqueue/Makefile
index 8056e2e..0e3b41e 100644
--- a/tools/testing/selftests/mqueue/Makefile
+++ b/tools/testing/selftests/mqueue/Makefile
@@ -1,10 +1,22 @@
+CFLAGS = -O2
+
 all:
-	gcc -O2 mq_open_tests.c -o mq_open_tests -lrt
-	gcc -O2 -o mq_perf_tests mq_perf_tests.c -lrt -lpthread -lpopt
+	$(CC) $(CFLAGS) mq_open_tests.c -o mq_open_tests -lrt
+	$(CC) $(CFLAGS) -o mq_perf_tests mq_perf_tests.c -lrt -lpthread -lpopt
+
+include ../lib.mk
+
+override define RUN_TESTS
+	@./mq_open_tests /test1 || echo "selftests: mq_open_tests [FAIL]"
+	@./mq_perf_tests || echo "selftests: mq_perf_tests [FAIL]"
+endef
+
+TEST_PROGS := mq_open_tests mq_perf_tests
 
-run_tests:
-	@./mq_open_tests /test1 || echo "mq_open_tests: [FAIL]"
-	@./mq_perf_tests || echo "mq_perf_tests: [FAIL]"
+override define EMIT_TESTS
+	echo "./mq_open_tests /test1 || echo \"selftests: mq_open_tests [FAIL]\""
+	echo "./mq_perf_tests || echo \"selftests: mq_perf_tests [FAIL]\""
+endef
 
 clean:
 	rm -f mq_open_tests mq_perf_tests
diff --git a/tools/testing/selftests/net/Makefile b/tools/testing/selftests/net/Makefile
index 62f22cc..fac4782 100644
--- a/tools/testing/selftests/net/Makefile
+++ b/tools/testing/selftests/net/Makefile
@@ -1,6 +1,5 @@
 # Makefile for net selftests
 
-CC = $(CROSS_COMPILE)gcc
 CFLAGS = -Wall -O2 -g
 
 CFLAGS += -I../../../../usr/include/
@@ -11,9 +10,10 @@ all: $(NET_PROGS)
 %: %.c
 	$(CC) $(CFLAGS) -o $@ $^
 
-run_tests: all
-	@/bin/sh ./run_netsocktests || echo "sockettests: [FAIL]"
-	@/bin/sh ./run_afpackettests || echo "afpackettests: [FAIL]"
-	./test_bpf.sh
+TEST_PROGS := run_netsocktests run_afpackettests test_bpf.sh
+TEST_FILES := $(NET_PROGS)
+
+include ../lib.mk
+
 clean:
 	$(RM) $(NET_PROGS)
diff --git a/tools/testing/selftests/net/run_afpackettests b/tools/testing/selftests/net/run_afpackettests
index 5246e78..5246e78 100644..100755
--- a/tools/testing/selftests/net/run_afpackettests
+++ b/tools/testing/selftests/net/run_afpackettests
diff --git a/tools/testing/selftests/net/run_netsocktests b/tools/testing/selftests/net/run_netsocktests
index c09a682..c09a682 100644..100755
--- a/tools/testing/selftests/net/run_netsocktests
+++ b/tools/testing/selftests/net/run_netsocktests
diff --git a/tools/testing/selftests/powerpc/Makefile b/tools/testing/selftests/powerpc/Makefile
index 1d5e7ad..2958fe9a 100644
--- a/tools/testing/selftests/powerpc/Makefile
+++ b/tools/testing/selftests/powerpc/Makefile
@@ -8,10 +8,9 @@ ifeq ($(ARCH),powerpc)
 
 GIT_VERSION = $(shell git describe --always --long --dirty || echo "unknown")
 
-CC := $(CROSS_COMPILE)$(CC)
 CFLAGS := -Wall -O2 -flto -Wall -Werror -DGIT_VERSION='"$(GIT_VERSION)"' -I$(CURDIR) $(CFLAGS)
 
-export CC CFLAGS
+export CFLAGS
 
 TARGETS = pmu copyloops mm tm primitives stringloops
 
@@ -22,10 +21,25 @@ all: $(TARGETS)
 $(TARGETS):
 	$(MAKE) -k -C $@ all
 
-run_tests: all
+include ../lib.mk
+
+override define RUN_TESTS
 	@for TARGET in $(TARGETS); do \
 		$(MAKE) -C $$TARGET run_tests; \
 	done;
+endef
+
+override define INSTALL_RULE
+	@for TARGET in $(TARGETS); do \
+		$(MAKE) -C $$TARGET install; \
+	done;
+endef
+
+override define EMIT_TESTS
+	@for TARGET in $(TARGETS); do \
+		$(MAKE) -s -C $$TARGET emit_tests; \
+	done;
+endef
 
 clean:
 	@for TARGET in $(TARGETS); do \
@@ -36,4 +50,4 @@ clean:
 tags:
 	find . -name '*.c' -o -name '*.h' | xargs ctags
 
-.PHONY: all run_tests clean tags $(TARGETS)
+.PHONY: tags $(TARGETS)
diff --git a/tools/testing/selftests/powerpc/copyloops/Makefile b/tools/testing/selftests/powerpc/copyloops/Makefile
index 6f2d3be..c050235 100644
--- a/tools/testing/selftests/powerpc/copyloops/Makefile
+++ b/tools/testing/selftests/powerpc/copyloops/Makefile
@@ -6,24 +6,19 @@ CFLAGS += -D SELFTEST
 # Use our CFLAGS for the implicit .S rule
 ASFLAGS = $(CFLAGS)
 
-PROGS := copyuser_64 copyuser_power7 memcpy_64 memcpy_power7
+TEST_PROGS := copyuser_64 copyuser_power7 memcpy_64 memcpy_power7
 EXTRA_SOURCES := validate.c ../harness.c
 
-all: $(PROGS)
+all: $(TEST_PROGS)
 
 copyuser_64:     CPPFLAGS += -D COPY_LOOP=test___copy_tofrom_user_base
 copyuser_power7: CPPFLAGS += -D COPY_LOOP=test___copy_tofrom_user_power7
 memcpy_64:       CPPFLAGS += -D COPY_LOOP=test_memcpy
 memcpy_power7:   CPPFLAGS += -D COPY_LOOP=test_memcpy_power7
 
-$(PROGS): $(EXTRA_SOURCES)
+$(TEST_PROGS): $(EXTRA_SOURCES)
 
-run_tests: all
-	@-for PROG in $(PROGS); do \
-		./$$PROG; \
-	done;
+include ../../lib.mk
 
 clean:
-	rm -f $(PROGS) *.o
-
-.PHONY: all run_tests clean
+	rm -f $(TEST_PROGS) *.o
diff --git a/tools/testing/selftests/powerpc/mm/Makefile b/tools/testing/selftests/powerpc/mm/Makefile
index a14c538..41cc3ed 100644
--- a/tools/testing/selftests/powerpc/mm/Makefile
+++ b/tools/testing/selftests/powerpc/mm/Makefile
@@ -1,21 +1,16 @@
 noarg:
 	$(MAKE) -C ../
 
-PROGS := hugetlb_vs_thp_test subpage_prot
+TEST_PROGS := hugetlb_vs_thp_test subpage_prot
 
-all: $(PROGS) tempfile
+all: $(TEST_PROGS) tempfile
 
-$(PROGS): ../harness.c
+$(TEST_PROGS): ../harness.c
 
-run_tests: all
-	@-for PROG in $(PROGS); do \
-		./$$PROG; \
-	done;
+include ../../lib.mk
 
 tempfile:
 	dd if=/dev/zero of=tempfile bs=64k count=1
 
 clean:
-	rm -f $(PROGS) tempfile
-
-.PHONY: all run_tests clean
+	rm -f $(TEST_PROGS) tempfile
diff --git a/tools/testing/selftests/powerpc/pmu/Makefile b/tools/testing/selftests/powerpc/pmu/Makefile
index c9f4263..5a16117 100644
--- a/tools/testing/selftests/powerpc/pmu/Makefile
+++ b/tools/testing/selftests/powerpc/pmu/Makefile
@@ -1,38 +1,42 @@
 noarg:
 	$(MAKE) -C ../
 
-PROGS := count_instructions l3_bank_test per_event_excludes
+TEST_PROGS := count_instructions l3_bank_test per_event_excludes
 EXTRA_SOURCES := ../harness.c event.c lib.c
 
-SUB_TARGETS = ebb
+all: $(TEST_PROGS) ebb
 
-all: $(PROGS) $(SUB_TARGETS)
-
-$(PROGS): $(EXTRA_SOURCES)
+$(TEST_PROGS): $(EXTRA_SOURCES)
 
 # loop.S can only be built 64-bit
 count_instructions: loop.S count_instructions.c $(EXTRA_SOURCES)
 	$(CC) $(CFLAGS) -m64 -o $@ $^
 
-run_tests: all sub_run_tests
-	@-for PROG in $(PROGS); do \
-		./$$PROG; \
-	done;
+include ../../lib.mk
 
-clean: sub_clean
-	rm -f $(PROGS) loop.o
+DEFAULT_RUN_TESTS := $(RUN_TESTS)
+override define RUN_TESTS
+	$(DEFAULT_RUN_TESTS)
+	$(MAKE) -C ebb run_tests
+endef
 
-$(SUB_TARGETS):
-	$(MAKE) -k -C $@ all
+DEFAULT_EMIT_TESTS := $(EMIT_TESTS)
+override define EMIT_TESTS
+	$(DEFAULT_EMIT_TESTS)
+	$(MAKE) -s -C ebb emit_tests
+endef
 
-sub_run_tests: all
-	@for TARGET in $(SUB_TARGETS); do \
-		$(MAKE) -C $$TARGET run_tests; \
-	done;
+DEFAULT_INSTALL := $(INSTALL_RULE)
+override define INSTALL_RULE
+	$(DEFAULT_INSTALL_RULE)
+	$(MAKE) -C ebb install
+endef
 
-sub_clean:
-	@for TARGET in $(SUB_TARGETS); do \
-		$(MAKE) -C $$TARGET clean; \
-	done;
+clean:
+	rm -f $(TEST_PROGS) loop.o
+	$(MAKE) -C ebb clean
+
+ebb:
+	$(MAKE) -k -C $@ all
 
-.PHONY: all run_tests clean sub_run_tests sub_clean $(SUB_TARGETS)
+.PHONY: all run_tests clean ebb
diff --git a/tools/testing/selftests/powerpc/pmu/ebb/Makefile b/tools/testing/selftests/powerpc/pmu/ebb/Makefile
index 3dc4332..5cdc9db 100644
--- a/tools/testing/selftests/powerpc/pmu/ebb/Makefile
+++ b/tools/testing/selftests/powerpc/pmu/ebb/Makefile
@@ -4,7 +4,7 @@ noarg:
 # The EBB handler is 64-bit code and everything links against it
 CFLAGS += -m64
 
-PROGS := reg_access_test event_attributes_test cycles_test	\
+TEST_PROGS := reg_access_test event_attributes_test cycles_test	\
 	 cycles_with_freeze_test pmc56_overflow_test		\
 	 ebb_vs_cpu_event_test cpu_event_vs_ebb_test		\
 	 cpu_event_pinned_vs_ebb_test task_event_vs_ebb_test	\
@@ -16,18 +16,15 @@ PROGS := reg_access_test event_attributes_test cycles_test	\
 	 lost_exception_test no_handler_test			\
 	 cycles_with_mmcr2_test
 
-all: $(PROGS)
+all: $(TEST_PROGS)
 
-$(PROGS): ../../harness.c ../event.c ../lib.c ebb.c ebb_handler.S trace.c busy_loop.S
+$(TEST_PROGS): ../../harness.c ../event.c ../lib.c ebb.c ebb_handler.S trace.c busy_loop.S
 
 instruction_count_test: ../loop.S
 
 lost_exception_test: ../lib.c
 
-run_tests: all
-	@-for PROG in $(PROGS); do \
-		./$$PROG; \
-	done;
+include ../../../lib.mk
 
 clean:
-	rm -f $(PROGS)
+	rm -f $(TEST_PROGS)
diff --git a/tools/testing/selftests/powerpc/primitives/Makefile b/tools/testing/selftests/powerpc/primitives/Makefile
index ea737ca..b68c622 100644
--- a/tools/testing/selftests/powerpc/primitives/Makefile
+++ b/tools/testing/selftests/powerpc/primitives/Makefile
@@ -1,17 +1,12 @@
 CFLAGS += -I$(CURDIR)
 
-PROGS := load_unaligned_zeropad
+TEST_PROGS := load_unaligned_zeropad
 
-all: $(PROGS)
+all: $(TEST_PROGS)
 
-$(PROGS): ../harness.c
+$(TEST_PROGS): ../harness.c
 
-run_tests: all
-	@-for PROG in $(PROGS); do \
-		./$$PROG; \
-	done;
+include ../../lib.mk
 
 clean:
-	rm -f $(PROGS) *.o
-
-.PHONY: all run_tests clean
+	rm -f $(TEST_PROGS) *.o
diff --git a/tools/testing/selftests/powerpc/stringloops/Makefile b/tools/testing/selftests/powerpc/stringloops/Makefile
index 506d773..2a728f4 100644
--- a/tools/testing/selftests/powerpc/stringloops/Makefile
+++ b/tools/testing/selftests/powerpc/stringloops/Makefile
@@ -2,19 +2,14 @@
 CFLAGS += -m64
 CFLAGS += -I$(CURDIR)
 
-PROGS := memcmp
+TEST_PROGS := memcmp
 EXTRA_SOURCES := memcmp_64.S ../harness.c
 
-all: $(PROGS)
+all: $(TEST_PROGS)
 
-$(PROGS): $(EXTRA_SOURCES)
+$(TEST_PROGS): $(EXTRA_SOURCES)
 
-run_tests: all
-	@-for PROG in $(PROGS); do \
-		./$$PROG; \
-	done;
+include ../../lib.mk
 
 clean:
-	rm -f $(PROGS) *.o
-
-.PHONY: all run_tests clean
+	rm -f $(TEST_PROGS) *.o
diff --git a/tools/testing/selftests/powerpc/tm/Makefile b/tools/testing/selftests/powerpc/tm/Makefile
index 2cede23..34f2ec63 100644
--- a/tools/testing/selftests/powerpc/tm/Makefile
+++ b/tools/testing/selftests/powerpc/tm/Makefile
@@ -1,15 +1,10 @@
-PROGS := tm-resched-dscr
+TEST_PROGS := tm-resched-dscr
 
-all: $(PROGS)
+all: $(TEST_PROGS)
 
-$(PROGS): ../harness.c
+$(TEST_PROGS): ../harness.c
 
-run_tests: all
-	@-for PROG in $(PROGS); do \
-		./$$PROG; \
-	done;
+include ../../lib.mk
 
 clean:
-	rm -f $(PROGS) *.o
-
-.PHONY: all run_tests clean
+	rm -f $(TEST_PROGS) *.o
diff --git a/tools/testing/selftests/ptrace/Makefile b/tools/testing/selftests/ptrace/Makefile
index 47ae2d3..453927f 100644
--- a/tools/testing/selftests/ptrace/Makefile
+++ b/tools/testing/selftests/ptrace/Makefile
@@ -6,5 +6,6 @@ all: peeksiginfo
 clean:
 	rm -f peeksiginfo
 
-run_tests: all
-	@./peeksiginfo || echo "peeksiginfo selftests: [FAIL]"
+TEST_PROGS := peeksiginfo
+
+include ../lib.mk
diff --git a/tools/testing/selftests/size/Makefile b/tools/testing/selftests/size/Makefile
index 04dc25e..bbd0b53 100644
--- a/tools/testing/selftests/size/Makefile
+++ b/tools/testing/selftests/size/Makefile
@@ -1,12 +1,11 @@
-CC = $(CROSS_COMPILE)gcc
-
 all: get_size
 
 get_size: get_size.c
 	$(CC) -static -ffreestanding -nostartfiles -s $< -o $@
 
-run_tests: all
-	./get_size
+TEST_PROGS := get_size
+
+include ../lib.mk
 
 clean:
 	$(RM) get_size
diff --git a/tools/testing/selftests/sysctl/Makefile b/tools/testing/selftests/sysctl/Makefile
index 0a92ada..b3c33e0 100644
--- a/tools/testing/selftests/sysctl/Makefile
+++ b/tools/testing/selftests/sysctl/Makefile
@@ -4,16 +4,10 @@
 # No binaries, but make sure arg-less "make" doesn't trigger "run_tests".
 all:
 
-# Allow specific tests to be selected.
-test_num:
-	@/bin/sh ./run_numerictests
+TEST_PROGS := run_numerictests run_stringtests
+TEST_FILES := common_tests
 
-test_string:
-	@/bin/sh ./run_stringtests
-
-run_tests: all test_num test_string
+include ../lib.mk
 
 # Nothing to clean up.
 clean:
-
-.PHONY: all run_tests clean test_num test_string
diff --git a/tools/testing/selftests/sysctl/run_numerictests b/tools/testing/selftests/sysctl/run_numerictests
index 8510f93..8510f93 100644..100755
--- a/tools/testing/selftests/sysctl/run_numerictests
+++ b/tools/testing/selftests/sysctl/run_numerictests
diff --git a/tools/testing/selftests/sysctl/run_stringtests b/tools/testing/selftests/sysctl/run_stringtests
index 90a9293..90a9293 100644..100755
--- a/tools/testing/selftests/sysctl/run_stringtests
+++ b/tools/testing/selftests/sysctl/run_stringtests
diff --git a/tools/testing/selftests/timers/Makefile b/tools/testing/selftests/timers/Makefile
index eb2859f..89a3f44 100644
--- a/tools/testing/selftests/timers/Makefile
+++ b/tools/testing/selftests/timers/Makefile
@@ -1,8 +1,36 @@
-all:
-	gcc posix_timers.c -o posix_timers -lrt
+CC = $(CROSS_COMPILE)gcc
+BUILD_FLAGS = -DKTEST
+CFLAGS += -O3 -Wl,-no-as-needed -Wall $(BUILD_FLAGS)
+LDFLAGS += -lrt -lpthread
 
-run_tests: all
-	./posix_timers
+# these are all "safe" tests that don't modify
+# system time or require escalated privledges
+TEST_PROGS = posix_timers nanosleep nsleep-lat set-timer-lat mqueue-lat \
+	     inconsistency-check raw_skew threadtest rtctest
+
+TEST_PROGS_EXTENDED = alarmtimer-suspend valid-adjtimex change_skew \
+		      skew_consistency clocksource-switch leap-a-day \
+		      leapcrash set-tai set-2038
+
+bins = $(TEST_PROGS) $(TEST_PROGS_EXTENDED)
+
+all: ${bins}
+
+include ../lib.mk
+
+# these tests require escalated privledges
+# and may modify the system time or trigger
+# other behavior like suspend
+run_destructive_tests: run_tests
+	./alarmtimer-suspend
+	./valid-adjtimex
+	./change_skew
+	./skew_consistency
+	./clocksource-switch
+	./leap-a-day -s -i 10
+	./leapcrash
+	./set-tai
+	./set-2038
 
 clean:
-	rm -f ./posix_timers
+	rm -f ${bins}
diff --git a/tools/testing/selftests/timers/alarmtimer-suspend.c b/tools/testing/selftests/timers/alarmtimer-suspend.c
new file mode 100644
index 0000000..aaffbde
--- /dev/null
+++ b/tools/testing/selftests/timers/alarmtimer-suspend.c
@@ -0,0 +1,185 @@
+/* alarmtimer suspend test
+ *		John Stultz (john.stultz@linaro.org)
+ *              (C) Copyright Linaro 2013
+ *              Licensed under the GPLv2
+ *
+ *   This test makes sure the alarmtimer & RTC wakeup code is
+ *   functioning.
+ *
+ *  To build:
+ *	$ gcc alarmtimer-suspend.c -o alarmtimer-suspend -lrt
+ *
+ *   This program is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation, either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ */
+
+
+#include <stdio.h>
+#include <unistd.h>
+#include <time.h>
+#include <string.h>
+#include <signal.h>
+#include <stdlib.h>
+#include <pthread.h>
+#ifdef KTEST
+#include "../kselftest.h"
+#else
+static inline int ksft_exit_pass(void)
+{
+	exit(0);
+}
+static inline int ksft_exit_fail(void)
+{
+	exit(1);
+}
+#endif
+
+#define CLOCK_REALTIME			0
+#define CLOCK_MONOTONIC			1
+#define CLOCK_PROCESS_CPUTIME_ID	2
+#define CLOCK_THREAD_CPUTIME_ID		3
+#define CLOCK_MONOTONIC_RAW		4
+#define CLOCK_REALTIME_COARSE		5
+#define CLOCK_MONOTONIC_COARSE		6
+#define CLOCK_BOOTTIME			7
+#define CLOCK_REALTIME_ALARM		8
+#define CLOCK_BOOTTIME_ALARM		9
+#define CLOCK_HWSPECIFIC		10
+#define CLOCK_TAI			11
+#define NR_CLOCKIDS			12
+
+
+#define NSEC_PER_SEC 1000000000ULL
+#define UNREASONABLE_LAT (NSEC_PER_SEC * 4) /* hopefully we resume in 4secs */
+
+#define SUSPEND_SECS 15
+int alarmcount;
+int alarm_clock_id;
+struct timespec start_time;
+
+
+char *clockstring(int clockid)
+{
+	switch (clockid) {
+	case CLOCK_REALTIME:
+		return "CLOCK_REALTIME";
+	case CLOCK_MONOTONIC:
+		return "CLOCK_MONOTONIC";
+	case CLOCK_PROCESS_CPUTIME_ID:
+		return "CLOCK_PROCESS_CPUTIME_ID";
+	case CLOCK_THREAD_CPUTIME_ID:
+		return "CLOCK_THREAD_CPUTIME_ID";
+	case CLOCK_MONOTONIC_RAW:
+		return "CLOCK_MONOTONIC_RAW";
+	case CLOCK_REALTIME_COARSE:
+		return "CLOCK_REALTIME_COARSE";
+	case CLOCK_MONOTONIC_COARSE:
+		return "CLOCK_MONOTONIC_COARSE";
+	case CLOCK_BOOTTIME:
+		return "CLOCK_BOOTTIME";
+	case CLOCK_REALTIME_ALARM:
+		return "CLOCK_REALTIME_ALARM";
+	case CLOCK_BOOTTIME_ALARM:
+		return "CLOCK_BOOTTIME_ALARM";
+	case CLOCK_TAI:
+		return "CLOCK_TAI";
+	};
+	return "UNKNOWN_CLOCKID";
+}
+
+
+long long timespec_sub(struct timespec a, struct timespec b)
+{
+	long long ret = NSEC_PER_SEC * b.tv_sec + b.tv_nsec;
+
+	ret -= NSEC_PER_SEC * a.tv_sec + a.tv_nsec;
+	return ret;
+}
+
+int final_ret = 0;
+
+void sigalarm(int signo)
+{
+	long long delta_ns;
+	struct timespec ts;
+
+	clock_gettime(alarm_clock_id, &ts);
+	alarmcount++;
+
+	delta_ns = timespec_sub(start_time, ts);
+	delta_ns -= NSEC_PER_SEC * SUSPEND_SECS * alarmcount;
+
+	printf("ALARM(%i): %ld:%ld latency: %lld ns ", alarmcount, ts.tv_sec,
+							ts.tv_nsec, delta_ns);
+
+	if (delta_ns > UNREASONABLE_LAT) {
+		printf("[FAIL]\n");
+		final_ret = -1;
+	} else
+		printf("[OK]\n");
+
+}
+
+int main(void)
+{
+	timer_t tm1;
+	struct itimerspec its1, its2;
+	struct sigevent se;
+	struct sigaction act;
+	int signum = SIGRTMAX;
+
+	/* Set up signal handler: */
+	sigfillset(&act.sa_mask);
+	act.sa_flags = 0;
+	act.sa_handler = sigalarm;
+	sigaction(signum, &act, NULL);
+
+	/* Set up timer: */
+	memset(&se, 0, sizeof(se));
+	se.sigev_notify = SIGEV_SIGNAL;
+	se.sigev_signo = signum;
+	se.sigev_value.sival_int = 0;
+
+	for (alarm_clock_id = CLOCK_REALTIME_ALARM;
+			alarm_clock_id <= CLOCK_BOOTTIME_ALARM;
+			alarm_clock_id++) {
+
+		alarmcount = 0;
+		timer_create(alarm_clock_id, &se, &tm1);
+
+		clock_gettime(alarm_clock_id, &start_time);
+		printf("Start time (%s): %ld:%ld\n", clockstring(alarm_clock_id),
+				start_time.tv_sec, start_time.tv_nsec);
+		printf("Setting alarm for every %i seconds\n", SUSPEND_SECS);
+		its1.it_value = start_time;
+		its1.it_value.tv_sec += SUSPEND_SECS;
+		its1.it_interval.tv_sec = SUSPEND_SECS;
+		its1.it_interval.tv_nsec = 0;
+
+		timer_settime(tm1, TIMER_ABSTIME, &its1, &its2);
+
+		while (alarmcount < 5)
+			sleep(1); /* First 5 alarms, do nothing */
+
+		printf("Starting suspend loops\n");
+		while (alarmcount < 10) {
+			int ret;
+
+			sleep(1);
+			ret = system("echo mem > /sys/power/state");
+			if (ret)
+				break;
+		}
+		timer_delete(tm1);
+	}
+	if (final_ret)
+		return ksft_exit_fail();
+	return ksft_exit_pass();
+}
diff --git a/tools/testing/selftests/timers/change_skew.c b/tools/testing/selftests/timers/change_skew.c
new file mode 100644
index 0000000..cb19689
--- /dev/null
+++ b/tools/testing/selftests/timers/change_skew.c
@@ -0,0 +1,107 @@
+/* ADJ_FREQ Skew change test
+ *		by: john stultz (johnstul@us.ibm.com)
+ *		(C) Copyright IBM 2012
+ *		Licensed under the GPLv2
+ *
+ *  NOTE: This is a meta-test which cranks the ADJ_FREQ knob and
+ *  then uses other tests to detect problems. Thus this test requires
+ *  that the raw_skew, inconsistency-check and nanosleep tests be
+ *  present in the same directory it is run from.
+ *
+ *  To build:
+ *	$ gcc change_skew.c -o change_skew -lrt
+ *
+ *   This program is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation, either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ */
+
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/time.h>
+#include <sys/timex.h>
+#include <time.h>
+#ifdef KTEST
+#include "../kselftest.h"
+#else
+static inline int ksft_exit_pass(void)
+{
+	exit(0);
+}
+static inline int ksft_exit_fail(void)
+{
+	exit(1);
+}
+#endif
+
+#define NSEC_PER_SEC 1000000000LL
+
+
+int change_skew_test(int ppm)
+{
+	struct timex tx;
+	int ret;
+
+	tx.modes = ADJ_FREQUENCY;
+	tx.freq = ppm << 16;
+
+	ret = adjtimex(&tx);
+	if (ret < 0) {
+		printf("Error adjusting freq\n");
+		return ret;
+	}
+
+	ret = system("./raw_skew");
+	ret |= system("./inconsistency-check");
+	ret |= system("./nanosleep");
+
+	return ret;
+}
+
+
+int main(int argv, char **argc)
+{
+	struct timex tx;
+	int i, ret;
+
+	int ppm[5] = {0, 250, 500, -250, -500};
+
+	/* Kill ntpd */
+	ret = system("killall -9 ntpd");
+
+	/* Make sure there's no offset adjustment going on */
+	tx.modes = ADJ_OFFSET;
+	tx.offset = 0;
+	ret = adjtimex(&tx);
+
+	if (ret < 0) {
+		printf("Maybe you're not running as root?\n");
+		return -1;
+	}
+
+	for (i = 0; i < 5; i++) {
+		printf("Using %i ppm adjustment\n", ppm[i]);
+		ret = change_skew_test(ppm[i]);
+		if (ret)
+			break;
+	}
+
+	/* Set things back */
+	tx.modes = ADJ_FREQUENCY;
+	tx.offset = 0;
+	adjtimex(&tx);
+
+	if (ret) {
+		printf("[FAIL]");
+		return ksft_exit_fail();
+	}
+	printf("[OK]");
+	return ksft_exit_pass();
+}
diff --git a/tools/testing/selftests/timers/clocksource-switch.c b/tools/testing/selftests/timers/clocksource-switch.c
new file mode 100644
index 0000000..627ec74
--- /dev/null
+++ b/tools/testing/selftests/timers/clocksource-switch.c
@@ -0,0 +1,179 @@
+/* Clocksource change test
+ *		by: john stultz (johnstul@us.ibm.com)
+ *		(C) Copyright IBM 2012
+ *		Licensed under the GPLv2
+ *
+ *  NOTE: This is a meta-test which quickly changes the clocksourc and
+ *  then uses other tests to detect problems. Thus this test requires
+ *  that the inconsistency-check and nanosleep tests be present in the
+ *  same directory it is run from.
+ *
+ *  To build:
+ *	$ gcc clocksource-switch.c -o clocksource-switch -lrt
+ *
+ *   This program is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation, either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ */
+
+
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <sys/time.h>
+#include <sys/timex.h>
+#include <time.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <string.h>
+#include <sys/wait.h>
+#ifdef KTEST
+#include "../kselftest.h"
+#else
+static inline int ksft_exit_pass(void)
+{
+	exit(0);
+}
+static inline int ksft_exit_fail(void)
+{
+	exit(1);
+}
+#endif
+
+
+int get_clocksources(char list[][30])
+{
+	int fd, i;
+	size_t size;
+	char buf[512];
+	char *head, *tmp;
+
+	fd = open("/sys/devices/system/clocksource/clocksource0/available_clocksource", O_RDONLY);
+
+	size = read(fd, buf, 512);
+
+	close(fd);
+
+	for (i = 0; i < 30; i++)
+		list[i][0] = '\0';
+
+	head = buf;
+	i = 0;
+	while (head - buf < size) {
+		/* Find the next space */
+		for (tmp = head; *tmp != ' '; tmp++) {
+			if (*tmp == '\n')
+				break;
+			if (*tmp == '\0')
+				break;
+		}
+		*tmp = '\0';
+		strcpy(list[i], head);
+		head = tmp + 1;
+		i++;
+	}
+
+	return i-1;
+}
+
+int get_cur_clocksource(char *buf, size_t size)
+{
+	int fd;
+
+	fd = open("/sys/devices/system/clocksource/clocksource0/current_clocksource", O_RDONLY);
+
+	size = read(fd, buf, size);
+
+	return 0;
+}
+
+int change_clocksource(char *clocksource)
+{
+	int fd;
+	size_t size;
+
+	fd = open("/sys/devices/system/clocksource/clocksource0/current_clocksource", O_WRONLY);
+
+	if (fd < 0)
+		return -1;
+
+	size = write(fd, clocksource, strlen(clocksource));
+
+	if (size < 0)
+		return -1;
+
+	close(fd);
+	return 0;
+}
+
+
+int run_tests(int secs)
+{
+	int ret;
+	char buf[255];
+
+	sprintf(buf, "./inconsistency-check -t %i", secs);
+	ret = system(buf);
+	if (ret)
+		return ret;
+	ret = system("./nanosleep");
+	return ret;
+}
+
+
+char clocksource_list[10][30];
+
+int main(int argv, char **argc)
+{
+	char orig_clk[512];
+	int count, i, status;
+	pid_t pid;
+
+	get_cur_clocksource(orig_clk, 512);
+
+	count = get_clocksources(clocksource_list);
+
+	if (change_clocksource(clocksource_list[0])) {
+		printf("Error: You probably need to run this as root\n");
+		return -1;
+	}
+
+	/* Check everything is sane before we start switching asyncrhonously */
+	for (i = 0; i < count; i++) {
+		printf("Validating clocksource %s\n", clocksource_list[i]);
+		if (change_clocksource(clocksource_list[i])) {
+			status = -1;
+			goto out;
+		}
+		if (run_tests(5)) {
+			status = -1;
+			goto out;
+		}
+	}
+
+
+	printf("Running Asyncrhonous Switching Tests...\n");
+	pid = fork();
+	if (!pid)
+		return run_tests(60);
+
+	while (pid != waitpid(pid, &status, WNOHANG))
+		for (i = 0; i < count; i++)
+			if (change_clocksource(clocksource_list[i])) {
+				status = -1;
+				goto out;
+			}
+out:
+	change_clocksource(orig_clk);
+
+	if (status)
+		return ksft_exit_fail();
+	return ksft_exit_pass();
+}
diff --git a/tools/testing/selftests/timers/inconsistency-check.c b/tools/testing/selftests/timers/inconsistency-check.c
new file mode 100644
index 0000000..caf1bc9
--- /dev/null
+++ b/tools/testing/selftests/timers/inconsistency-check.c
@@ -0,0 +1,204 @@
+/* Time inconsistency check test
+ *		by: john stultz (johnstul@us.ibm.com)
+ *		(C) Copyright IBM 2003, 2004, 2005, 2012
+ *		(C) Copyright Linaro Limited 2015
+ *		Licensed under the GPLv2
+ *
+ *  To build:
+ *	$ gcc inconsistency-check.c -o inconsistency-check -lrt
+ *
+ *   This program is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation, either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ */
+
+
+
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <time.h>
+#include <sys/time.h>
+#include <sys/timex.h>
+#include <string.h>
+#include <signal.h>
+#ifdef KTEST
+#include "../kselftest.h"
+#else
+static inline int ksft_exit_pass(void)
+{
+	exit(0);
+}
+static inline int ksft_exit_fail(void)
+{
+	exit(1);
+}
+#endif
+
+#define CALLS_PER_LOOP 64
+#define NSEC_PER_SEC 1000000000ULL
+
+#define CLOCK_REALTIME			0
+#define CLOCK_MONOTONIC			1
+#define CLOCK_PROCESS_CPUTIME_ID	2
+#define CLOCK_THREAD_CPUTIME_ID		3
+#define CLOCK_MONOTONIC_RAW		4
+#define CLOCK_REALTIME_COARSE		5
+#define CLOCK_MONOTONIC_COARSE		6
+#define CLOCK_BOOTTIME			7
+#define CLOCK_REALTIME_ALARM		8
+#define CLOCK_BOOTTIME_ALARM		9
+#define CLOCK_HWSPECIFIC		10
+#define CLOCK_TAI			11
+#define NR_CLOCKIDS			12
+
+char *clockstring(int clockid)
+{
+	switch (clockid) {
+	case CLOCK_REALTIME:
+		return "CLOCK_REALTIME";
+	case CLOCK_MONOTONIC:
+		return "CLOCK_MONOTONIC";
+	case CLOCK_PROCESS_CPUTIME_ID:
+		return "CLOCK_PROCESS_CPUTIME_ID";
+	case CLOCK_THREAD_CPUTIME_ID:
+		return "CLOCK_THREAD_CPUTIME_ID";
+	case CLOCK_MONOTONIC_RAW:
+		return "CLOCK_MONOTONIC_RAW";
+	case CLOCK_REALTIME_COARSE:
+		return "CLOCK_REALTIME_COARSE";
+	case CLOCK_MONOTONIC_COARSE:
+		return "CLOCK_MONOTONIC_COARSE";
+	case CLOCK_BOOTTIME:
+		return "CLOCK_BOOTTIME";
+	case CLOCK_REALTIME_ALARM:
+		return "CLOCK_REALTIME_ALARM";
+	case CLOCK_BOOTTIME_ALARM:
+		return "CLOCK_BOOTTIME_ALARM";
+	case CLOCK_TAI:
+		return "CLOCK_TAI";
+	};
+	return "UNKNOWN_CLOCKID";
+}
+
+/* returns 1 if a <= b, 0 otherwise */
+static inline int in_order(struct timespec a, struct timespec b)
+{
+	/* use unsigned to avoid false positives on 2038 rollover */
+	if ((unsigned long)a.tv_sec < (unsigned long)b.tv_sec)
+		return 1;
+	if ((unsigned long)a.tv_sec > (unsigned long)b.tv_sec)
+		return 0;
+	if (a.tv_nsec > b.tv_nsec)
+		return 0;
+	return 1;
+}
+
+
+
+int consistency_test(int clock_type, unsigned long seconds)
+{
+	struct timespec list[CALLS_PER_LOOP];
+	int i, inconsistent;
+	long now, then;
+	time_t t;
+	char *start_str;
+
+	clock_gettime(clock_type, &list[0]);
+	now = then = list[0].tv_sec;
+
+	/* timestamp start of test */
+	t = time(0);
+	start_str = ctime(&t);
+
+	while (seconds == -1 || now - then < seconds) {
+		inconsistent = 0;
+
+		/* Fill list */
+		for (i = 0; i < CALLS_PER_LOOP; i++)
+			clock_gettime(clock_type, &list[i]);
+
+		/* Check for inconsistencies */
+		for (i = 0; i < CALLS_PER_LOOP - 1; i++)
+			if (!in_order(list[i], list[i+1]))
+				inconsistent = i;
+
+		/* display inconsistency */
+		if (inconsistent) {
+			unsigned long long delta;
+
+			printf("\%s\n", start_str);
+			for (i = 0; i < CALLS_PER_LOOP; i++) {
+				if (i == inconsistent)
+					printf("--------------------\n");
+				printf("%lu:%lu\n", list[i].tv_sec,
+							list[i].tv_nsec);
+				if (i == inconsistent + 1)
+					printf("--------------------\n");
+			}
+			delta = list[inconsistent].tv_sec * NSEC_PER_SEC;
+			delta += list[inconsistent].tv_nsec;
+			delta -= list[inconsistent+1].tv_sec * NSEC_PER_SEC;
+			delta -= list[inconsistent+1].tv_nsec;
+			printf("Delta: %llu ns\n", delta);
+			fflush(0);
+			/* timestamp inconsistency*/
+			t = time(0);
+			printf("%s\n", ctime(&t));
+			printf("[FAILED]\n");
+			return -1;
+		}
+		now = list[0].tv_sec;
+	}
+	printf("[OK]\n");
+	return 0;
+}
+
+
+int main(int argc, char *argv[])
+{
+	int clockid, opt;
+	int userclock = CLOCK_REALTIME;
+	int maxclocks = NR_CLOCKIDS;
+	int runtime = 10;
+	struct timespec ts;
+
+	/* Process arguments */
+	while ((opt = getopt(argc, argv, "t:c:")) != -1) {
+		switch (opt) {
+		case 't':
+			runtime = atoi(optarg);
+			break;
+		case 'c':
+			userclock = atoi(optarg);
+			maxclocks = userclock + 1;
+			break;
+		default:
+			printf("Usage: %s [-t <secs>] [-c <clockid>]\n", argv[0]);
+			printf("	-t: Number of seconds to run\n");
+			printf("	-c: clockid to use (default, all clockids)\n");
+			exit(-1);
+		}
+	}
+
+	setbuf(stdout, NULL);
+
+	for (clockid = userclock; clockid < maxclocks; clockid++) {
+
+		if (clockid == CLOCK_HWSPECIFIC)
+			continue;
+
+		if (!clock_gettime(clockid, &ts)) {
+			printf("Consistent %-30s ", clockstring(clockid));
+			if (consistency_test(clockid, runtime))
+				return ksft_exit_fail();
+		}
+	}
+	return ksft_exit_pass();
+}
diff --git a/tools/testing/selftests/timers/leap-a-day.c b/tools/testing/selftests/timers/leap-a-day.c
new file mode 100644
index 0000000..b8272e6
--- /dev/null
+++ b/tools/testing/selftests/timers/leap-a-day.c
@@ -0,0 +1,319 @@
+/* Leap second stress test
+ *              by: John Stultz (john.stultz@linaro.org)
+ *              (C) Copyright IBM 2012
+ *              (C) Copyright 2013, 2015 Linaro Limited
+ *              Licensed under the GPLv2
+ *
+ *  This test signals the kernel to insert a leap second
+ *  every day at midnight GMT. This allows for stessing the
+ *  kernel's leap-second behavior, as well as how well applications
+ *  handle the leap-second discontinuity.
+ *
+ *  Usage: leap-a-day [-s] [-i <num>]
+ *
+ *  Options:
+ *	-s:	Each iteration, set the date to 10 seconds before midnight GMT.
+ *		This speeds up the number of leapsecond transitions tested,
+ *		but because it calls settimeofday frequently, advancing the
+ *		time by 24 hours every ~16 seconds, it may cause application
+ *		disruption.
+ *
+ *	-i:	Number of iterations to run (default: infinite)
+ *
+ *  Other notes: Disabling NTP prior to running this is advised, as the two
+ *		 may conflict in their commands to the kernel.
+ *
+ *  To build:
+ *	$ gcc leap-a-day.c -o leap-a-day -lrt
+ *
+ *   This program is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation, either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ */
+
+
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#include <sys/time.h>
+#include <sys/timex.h>
+#include <string.h>
+#include <signal.h>
+#include <unistd.h>
+#ifdef KTEST
+#include "../kselftest.h"
+#else
+static inline int ksft_exit_pass(void)
+{
+	exit(0);
+}
+static inline int ksft_exit_fail(void)
+{
+	exit(1);
+}
+#endif
+
+#define NSEC_PER_SEC 1000000000ULL
+#define CLOCK_TAI 11
+
+/* returns 1 if a <= b, 0 otherwise */
+static inline int in_order(struct timespec a, struct timespec b)
+{
+	if (a.tv_sec < b.tv_sec)
+		return 1;
+	if (a.tv_sec > b.tv_sec)
+		return 0;
+	if (a.tv_nsec > b.tv_nsec)
+		return 0;
+	return 1;
+}
+
+struct timespec timespec_add(struct timespec ts, unsigned long long ns)
+{
+	ts.tv_nsec += ns;
+	while (ts.tv_nsec >= NSEC_PER_SEC) {
+		ts.tv_nsec -= NSEC_PER_SEC;
+		ts.tv_sec++;
+	}
+	return ts;
+}
+
+char *time_state_str(int state)
+{
+	switch (state) {
+	case TIME_OK:	return "TIME_OK";
+	case TIME_INS:	return "TIME_INS";
+	case TIME_DEL:	return "TIME_DEL";
+	case TIME_OOP:	return "TIME_OOP";
+	case TIME_WAIT:	return "TIME_WAIT";
+	case TIME_BAD:	return "TIME_BAD";
+	}
+	return "ERROR";
+}
+
+/* clear NTP time_status & time_state */
+int clear_time_state(void)
+{
+	struct timex tx;
+	int ret;
+
+	/*
+	 * We have to call adjtime twice here, as kernels
+	 * prior to 6b1859dba01c7 (included in 3.5 and
+	 * -stable), had an issue with the state machine
+	 * and wouldn't clear the STA_INS/DEL flag directly.
+	 */
+	tx.modes = ADJ_STATUS;
+	tx.status = STA_PLL;
+	ret = adjtimex(&tx);
+
+	/* Clear maxerror, as it can cause UNSYNC to be set */
+	tx.modes = ADJ_MAXERROR;
+	tx.maxerror = 0;
+	ret = adjtimex(&tx);
+
+	/* Clear the status */
+	tx.modes = ADJ_STATUS;
+	tx.status = 0;
+	ret = adjtimex(&tx);
+
+	return ret;
+}
+
+/* Make sure we cleanup on ctrl-c */
+void handler(int unused)
+{
+	clear_time_state();
+	exit(0);
+}
+
+/* Test for known hrtimer failure */
+void test_hrtimer_failure(void)
+{
+	struct timespec now, target;
+
+	clock_gettime(CLOCK_REALTIME, &now);
+	target = timespec_add(now, NSEC_PER_SEC/2);
+	clock_nanosleep(CLOCK_REALTIME, TIMER_ABSTIME, &target, NULL);
+	clock_gettime(CLOCK_REALTIME, &now);
+
+	if (!in_order(target, now))
+		printf("ERROR: hrtimer early expiration failure observed.\n");
+}
+
+int main(int argc, char **argv)
+{
+	int settime = 0;
+	int tai_time = 0;
+	int insert = 1;
+	int iterations = -1;
+	int opt;
+
+	/* Process arguments */
+	while ((opt = getopt(argc, argv, "sti:")) != -1) {
+		switch (opt) {
+		case 's':
+			printf("Setting time to speed up testing\n");
+			settime = 1;
+			break;
+		case 'i':
+			iterations = atoi(optarg);
+			break;
+		case 't':
+			tai_time = 1;
+			break;
+		default:
+			printf("Usage: %s [-s] [-i <iterations>]\n", argv[0]);
+			printf("	-s: Set time to right before leap second each iteration\n");
+			printf("	-i: Number of iterations\n");
+			printf("	-t: Print TAI time\n");
+			exit(-1);
+		}
+	}
+
+	/* Make sure TAI support is present if -t was used */
+	if (tai_time) {
+		struct timespec ts;
+
+		if (clock_gettime(CLOCK_TAI, &ts)) {
+			printf("System doesn't support CLOCK_TAI\n");
+			ksft_exit_fail();
+		}
+	}
+
+	signal(SIGINT, handler);
+	signal(SIGKILL, handler);
+
+	if (iterations < 0)
+		printf("This runs continuously. Press ctrl-c to stop\n");
+	else
+		printf("Running for %i iterations. Press ctrl-c to stop\n", iterations);
+
+	printf("\n");
+	while (1) {
+		int ret;
+		struct timespec ts;
+		struct timex tx;
+		time_t now, next_leap;
+
+		/* Get the current time */
+		clock_gettime(CLOCK_REALTIME, &ts);
+
+		/* Calculate the next possible leap second 23:59:60 GMT */
+		next_leap = ts.tv_sec;
+		next_leap += 86400 - (next_leap % 86400);
+
+		if (settime) {
+			struct timeval tv;
+
+			tv.tv_sec = next_leap - 10;
+			tv.tv_usec = 0;
+			settimeofday(&tv, NULL);
+			printf("Setting time to %s", ctime(&tv.tv_sec));
+		}
+
+		/* Reset NTP time state */
+		clear_time_state();
+
+		/* Set the leap second insert flag */
+		tx.modes = ADJ_STATUS;
+		if (insert)
+			tx.status = STA_INS;
+		else
+			tx.status = STA_DEL;
+		ret = adjtimex(&tx);
+		if (ret < 0) {
+			printf("Error: Problem setting STA_INS/STA_DEL!: %s\n",
+							time_state_str(ret));
+			return ksft_exit_fail();
+		}
+
+		/* Validate STA_INS was set */
+		tx.modes = 0;
+		ret = adjtimex(&tx);
+		if (tx.status != STA_INS && tx.status != STA_DEL) {
+			printf("Error: STA_INS/STA_DEL not set!: %s\n",
+							time_state_str(ret));
+			return ksft_exit_fail();
+		}
+
+		if (tai_time) {
+			printf("Using TAI time,"
+				" no inconsistencies should be seen!\n");
+		}
+
+		printf("Scheduling leap second for %s", ctime(&next_leap));
+
+		/* Wake up 3 seconds before leap */
+		ts.tv_sec = next_leap - 3;
+		ts.tv_nsec = 0;
+
+		while (clock_nanosleep(CLOCK_REALTIME, TIMER_ABSTIME, &ts, NULL))
+			printf("Something woke us up, returning to sleep\n");
+
+		/* Validate STA_INS is still set */
+		tx.modes = 0;
+		ret = adjtimex(&tx);
+		if (tx.status != STA_INS && tx.status != STA_DEL) {
+			printf("Something cleared STA_INS/STA_DEL, setting it again.\n");
+			tx.modes = ADJ_STATUS;
+			if (insert)
+				tx.status = STA_INS;
+			else
+				tx.status = STA_DEL;
+			ret = adjtimex(&tx);
+		}
+
+		/* Check adjtimex output every half second */
+		now = tx.time.tv_sec;
+		while (now < next_leap + 2) {
+			char buf[26];
+			struct timespec tai;
+
+			tx.modes = 0;
+			ret = adjtimex(&tx);
+
+			if (tai_time) {
+				clock_gettime(CLOCK_TAI, &tai);
+				printf("%ld sec, %9ld ns\t%s\n",
+						tai.tv_sec,
+						tai.tv_nsec,
+						time_state_str(ret));
+			} else {
+				ctime_r(&tx.time.tv_sec, buf);
+				buf[strlen(buf)-1] = 0; /*remove trailing\n */
+
+				printf("%s + %6ld us (%i)\t%s\n",
+						buf,
+						tx.time.tv_usec,
+						tx.tai,
+						time_state_str(ret));
+			}
+			now = tx.time.tv_sec;
+			/* Sleep for another half second */
+			ts.tv_sec = 0;
+			ts.tv_nsec = NSEC_PER_SEC / 2;
+			clock_nanosleep(CLOCK_MONOTONIC, 0, &ts, NULL);
+		}
+		/* Switch to using other mode */
+		insert = !insert;
+
+		/* Note if kernel has known hrtimer failure */
+		test_hrtimer_failure();
+
+		printf("Leap complete\n\n");
+
+		if ((iterations != -1) && !(--iterations))
+			break;
+	}
+
+	clear_time_state();
+	return ksft_exit_pass();
+}
diff --git a/tools/testing/selftests/timers/leapcrash.c b/tools/testing/selftests/timers/leapcrash.c
new file mode 100644
index 0000000..a1071bd
--- /dev/null
+++ b/tools/testing/selftests/timers/leapcrash.c
@@ -0,0 +1,120 @@
+/* Demo leapsecond deadlock
+ *              by: John Stultz (john.stultz@linaro.org)
+ *              (C) Copyright IBM 2012
+ *              (C) Copyright 2013, 2015 Linaro Limited
+ *              Licensed under the GPL
+ *
+ * This test demonstrates leapsecond deadlock that is possibe
+ * on kernels from 2.6.26 to 3.3.
+ *
+ * WARNING: THIS WILL LIKELY HARDHANG SYSTEMS AND MAY LOSE DATA
+ * RUN AT YOUR OWN RISK!
+ *  To build:
+ *	$ gcc leapcrash.c -o leapcrash -lrt
+ */
+
+
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#include <sys/time.h>
+#include <sys/timex.h>
+#include <string.h>
+#include <signal.h>
+#ifdef KTEST
+#include "../kselftest.h"
+#else
+static inline int ksft_exit_pass(void)
+{
+	exit(0);
+}
+static inline int ksft_exit_fail(void)
+{
+	exit(1);
+}
+#endif
+
+
+
+/* clear NTP time_status & time_state */
+int clear_time_state(void)
+{
+	struct timex tx;
+	int ret;
+
+	/*
+	 * We have to call adjtime twice here, as kernels
+	 * prior to 6b1859dba01c7 (included in 3.5 and
+	 * -stable), had an issue with the state machine
+	 * and wouldn't clear the STA_INS/DEL flag directly.
+	 */
+	tx.modes = ADJ_STATUS;
+	tx.status = STA_PLL;
+	ret = adjtimex(&tx);
+
+	tx.modes = ADJ_STATUS;
+	tx.status = 0;
+	ret = adjtimex(&tx);
+
+	return ret;
+}
+
+/* Make sure we cleanup on ctrl-c */
+void handler(int unused)
+{
+	clear_time_state();
+	exit(0);
+}
+
+
+int main(void)
+{
+	struct timex tx;
+	struct timespec ts;
+	time_t next_leap;
+	int count = 0;
+
+	setbuf(stdout, NULL);
+
+	signal(SIGINT, handler);
+	signal(SIGKILL, handler);
+	printf("This runs for a few minutes. Press ctrl-c to stop\n");
+
+	clear_time_state();
+
+
+	/* Get the current time */
+	clock_gettime(CLOCK_REALTIME, &ts);
+
+	/* Calculate the next possible leap second 23:59:60 GMT */
+	next_leap = ts.tv_sec;
+	next_leap += 86400 - (next_leap % 86400);
+
+	for (count = 0; count < 20; count++) {
+		struct timeval tv;
+
+
+		/* set the time to 2 seconds before the leap */
+		tv.tv_sec = next_leap - 2;
+		tv.tv_usec = 0;
+		if (settimeofday(&tv, NULL)) {
+			printf("Error: You're likely not running with proper (ie: root) permissions\n");
+			return ksft_exit_fail();
+		}
+		tx.modes = 0;
+		adjtimex(&tx);
+
+		/* hammer on adjtime w/ STA_INS */
+		while (tx.time.tv_sec < next_leap + 1) {
+			/* Set the leap second insert flag */
+			tx.modes = ADJ_STATUS;
+			tx.status = STA_INS;
+			adjtimex(&tx);
+		}
+		clear_time_state();
+		printf(".");
+	}
+	printf("[OK]\n");
+	return ksft_exit_pass();
+}
diff --git a/tools/testing/selftests/timers/mqueue-lat.c b/tools/testing/selftests/timers/mqueue-lat.c
new file mode 100644
index 0000000..a2a3924
--- /dev/null
+++ b/tools/testing/selftests/timers/mqueue-lat.c
@@ -0,0 +1,124 @@
+/* Measure mqueue timeout latency
+ *              by: john stultz (john.stultz@linaro.org)
+ *		(C) Copyright Linaro 2013
+ *
+ *		Inspired with permission from example test by:
+ *			Romain Francoise <romain@orebokech.com>
+ *              Licensed under the GPLv2
+ *
+ *  To build:
+ *	$ gcc mqueue-lat.c -o mqueue-lat -lrt
+ *
+ *   This program is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation, either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#include <sys/time.h>
+#include <sys/timex.h>
+#include <string.h>
+#include <signal.h>
+#include <errno.h>
+#include <mqueue.h>
+#ifdef KTEST
+#include "../kselftest.h"
+#else
+static inline int ksft_exit_pass(void)
+{
+	exit(0);
+}
+static inline int ksft_exit_fail(void)
+{
+	exit(1);
+}
+#endif
+
+#define NSEC_PER_SEC 1000000000ULL
+
+#define TARGET_TIMEOUT		100000000	/* 100ms in nanoseconds */
+#define UNRESONABLE_LATENCY	40000000	/* 40ms in nanosecs */
+
+
+long long timespec_sub(struct timespec a, struct timespec b)
+{
+	long long ret = NSEC_PER_SEC * b.tv_sec + b.tv_nsec;
+
+	ret -= NSEC_PER_SEC * a.tv_sec + a.tv_nsec;
+	return ret;
+}
+
+struct timespec timespec_add(struct timespec ts, unsigned long long ns)
+{
+	ts.tv_nsec += ns;
+	while (ts.tv_nsec >= NSEC_PER_SEC) {
+		ts.tv_nsec -= NSEC_PER_SEC;
+		ts.tv_sec++;
+	}
+	return ts;
+}
+
+int mqueue_lat_test(void)
+{
+
+	mqd_t q;
+	struct mq_attr attr;
+	struct timespec start, end, now, target;
+	int i, count, ret;
+
+	q = mq_open("/foo", O_CREAT | O_RDONLY, 0666, NULL);
+	if (q < 0) {
+		perror("mq_open");
+		return -1;
+	}
+	mq_getattr(q, &attr);
+
+
+	count = 100;
+	clock_gettime(CLOCK_MONOTONIC, &start);
+
+	for (i = 0; i < count; i++) {
+		char buf[attr.mq_msgsize];
+
+		clock_gettime(CLOCK_REALTIME, &now);
+		target = now;
+		target = timespec_add(now, TARGET_TIMEOUT); /* 100ms */
+
+		ret = mq_timedreceive(q, buf, sizeof(buf), NULL, &target);
+		if (ret < 0 && errno != ETIMEDOUT) {
+			perror("mq_timedreceive");
+			return -1;
+		}
+	}
+	clock_gettime(CLOCK_MONOTONIC, &end);
+
+	mq_close(q);
+
+	if ((timespec_sub(start, end)/count) > TARGET_TIMEOUT + UNRESONABLE_LATENCY)
+		return -1;
+
+	return 0;
+}
+
+int main(int argc, char **argv)
+{
+	int ret;
+
+	printf("Mqueue latency :                          ");
+
+	ret = mqueue_lat_test();
+	if (ret < 0) {
+		printf("[FAILED]\n");
+		return ksft_exit_fail();
+	}
+	printf("[OK]\n");
+	return ksft_exit_pass();
+}
diff --git a/tools/testing/selftests/timers/nanosleep.c b/tools/testing/selftests/timers/nanosleep.c
new file mode 100644
index 0000000..8a3c29d
--- /dev/null
+++ b/tools/testing/selftests/timers/nanosleep.c
@@ -0,0 +1,174 @@
+/* Make sure timers don't return early
+ *              by: john stultz (johnstul@us.ibm.com)
+ *		    John Stultz (john.stultz@linaro.org)
+ *              (C) Copyright IBM 2012
+ *              (C) Copyright Linaro 2013 2015
+ *              Licensed under the GPLv2
+ *
+ *  To build:
+ *	$ gcc nanosleep.c -o nanosleep -lrt
+ *
+ *   This program is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation, either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#include <sys/time.h>
+#include <sys/timex.h>
+#include <string.h>
+#include <signal.h>
+#ifdef KTEST
+#include "../kselftest.h"
+#else
+static inline int ksft_exit_pass(void)
+{
+	exit(0);
+}
+static inline int ksft_exit_fail(void)
+{
+	exit(1);
+}
+#endif
+
+#define NSEC_PER_SEC 1000000000ULL
+
+#define CLOCK_REALTIME			0
+#define CLOCK_MONOTONIC			1
+#define CLOCK_PROCESS_CPUTIME_ID	2
+#define CLOCK_THREAD_CPUTIME_ID		3
+#define CLOCK_MONOTONIC_RAW		4
+#define CLOCK_REALTIME_COARSE		5
+#define CLOCK_MONOTONIC_COARSE		6
+#define CLOCK_BOOTTIME			7
+#define CLOCK_REALTIME_ALARM		8
+#define CLOCK_BOOTTIME_ALARM		9
+#define CLOCK_HWSPECIFIC		10
+#define CLOCK_TAI			11
+#define NR_CLOCKIDS			12
+
+#define UNSUPPORTED 0xf00f
+
+char *clockstring(int clockid)
+{
+	switch (clockid) {
+	case CLOCK_REALTIME:
+		return "CLOCK_REALTIME";
+	case CLOCK_MONOTONIC:
+		return "CLOCK_MONOTONIC";
+	case CLOCK_PROCESS_CPUTIME_ID:
+		return "CLOCK_PROCESS_CPUTIME_ID";
+	case CLOCK_THREAD_CPUTIME_ID:
+		return "CLOCK_THREAD_CPUTIME_ID";
+	case CLOCK_MONOTONIC_RAW:
+		return "CLOCK_MONOTONIC_RAW";
+	case CLOCK_REALTIME_COARSE:
+		return "CLOCK_REALTIME_COARSE";
+	case CLOCK_MONOTONIC_COARSE:
+		return "CLOCK_MONOTONIC_COARSE";
+	case CLOCK_BOOTTIME:
+		return "CLOCK_BOOTTIME";
+	case CLOCK_REALTIME_ALARM:
+		return "CLOCK_REALTIME_ALARM";
+	case CLOCK_BOOTTIME_ALARM:
+		return "CLOCK_BOOTTIME_ALARM";
+	case CLOCK_TAI:
+		return "CLOCK_TAI";
+	};
+	return "UNKNOWN_CLOCKID";
+}
+
+/* returns 1 if a <= b, 0 otherwise */
+static inline int in_order(struct timespec a, struct timespec b)
+{
+	if (a.tv_sec < b.tv_sec)
+		return 1;
+	if (a.tv_sec > b.tv_sec)
+		return 0;
+	if (a.tv_nsec > b.tv_nsec)
+		return 0;
+	return 1;
+}
+
+struct timespec timespec_add(struct timespec ts, unsigned long long ns)
+{
+	ts.tv_nsec += ns;
+	while (ts.tv_nsec >= NSEC_PER_SEC) {
+		ts.tv_nsec -= NSEC_PER_SEC;
+		ts.tv_sec++;
+	}
+	return ts;
+}
+
+int nanosleep_test(int clockid, long long ns)
+{
+	struct timespec now, target, rel;
+
+	/* First check abs time */
+	if (clock_gettime(clockid, &now))
+		return UNSUPPORTED;
+	target = timespec_add(now, ns);
+
+	if (clock_nanosleep(clockid, TIMER_ABSTIME, &target, NULL))
+		return UNSUPPORTED;
+	clock_gettime(clockid, &now);
+
+	if (!in_order(target, now))
+		return -1;
+
+	/* Second check reltime */
+	clock_gettime(clockid, &now);
+	rel.tv_sec = 0;
+	rel.tv_nsec = 0;
+	rel = timespec_add(rel, ns);
+	target = timespec_add(now, ns);
+	clock_nanosleep(clockid, 0, &rel, NULL);
+	clock_gettime(clockid, &now);
+
+	if (!in_order(target, now))
+		return -1;
+	return 0;
+}
+
+int main(int argc, char **argv)
+{
+	long long length;
+	int clockid, ret;
+
+	for (clockid = CLOCK_REALTIME; clockid < NR_CLOCKIDS; clockid++) {
+
+		/* Skip cputime clockids since nanosleep won't increment cputime */
+		if (clockid == CLOCK_PROCESS_CPUTIME_ID ||
+				clockid == CLOCK_THREAD_CPUTIME_ID ||
+				clockid == CLOCK_HWSPECIFIC)
+			continue;
+
+		printf("Nanosleep %-31s ", clockstring(clockid));
+
+		length = 10;
+		while (length <= (NSEC_PER_SEC * 10)) {
+			ret = nanosleep_test(clockid, length);
+			if (ret == UNSUPPORTED) {
+				printf("[UNSUPPORTED]\n");
+				goto next;
+			}
+			if (ret < 0) {
+				printf("[FAILED]\n");
+				return ksft_exit_fail();
+			}
+			length *= 100;
+		}
+		printf("[OK]\n");
+next:
+		ret = 0;
+	}
+	return ksft_exit_pass();
+}
diff --git a/tools/testing/selftests/timers/nsleep-lat.c b/tools/testing/selftests/timers/nsleep-lat.c
new file mode 100644
index 0000000..2d7898f
--- /dev/null
+++ b/tools/testing/selftests/timers/nsleep-lat.c
@@ -0,0 +1,190 @@
+/* Measure nanosleep timer latency
+ *              by: john stultz (john.stultz@linaro.org)
+ *		(C) Copyright Linaro 2013
+ *              Licensed under the GPLv2
+ *
+ *  To build:
+ *	$ gcc nsleep-lat.c -o nsleep-lat -lrt
+ *
+ *   This program is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation, either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#include <sys/time.h>
+#include <sys/timex.h>
+#include <string.h>
+#include <signal.h>
+#ifdef KTEST
+#include "../kselftest.h"
+#else
+static inline int ksft_exit_pass(void)
+{
+	exit(0);
+}
+static inline int ksft_exit_fail(void)
+{
+	exit(1);
+}
+#endif
+
+#define NSEC_PER_SEC 1000000000ULL
+
+#define UNRESONABLE_LATENCY 40000000 /* 40ms in nanosecs */
+
+
+#define CLOCK_REALTIME			0
+#define CLOCK_MONOTONIC			1
+#define CLOCK_PROCESS_CPUTIME_ID	2
+#define CLOCK_THREAD_CPUTIME_ID		3
+#define CLOCK_MONOTONIC_RAW		4
+#define CLOCK_REALTIME_COARSE		5
+#define CLOCK_MONOTONIC_COARSE		6
+#define CLOCK_BOOTTIME			7
+#define CLOCK_REALTIME_ALARM		8
+#define CLOCK_BOOTTIME_ALARM		9
+#define CLOCK_HWSPECIFIC		10
+#define CLOCK_TAI			11
+#define NR_CLOCKIDS			12
+
+#define UNSUPPORTED 0xf00f
+
+char *clockstring(int clockid)
+{
+	switch (clockid) {
+	case CLOCK_REALTIME:
+		return "CLOCK_REALTIME";
+	case CLOCK_MONOTONIC:
+		return "CLOCK_MONOTONIC";
+	case CLOCK_PROCESS_CPUTIME_ID:
+		return "CLOCK_PROCESS_CPUTIME_ID";
+	case CLOCK_THREAD_CPUTIME_ID:
+		return "CLOCK_THREAD_CPUTIME_ID";
+	case CLOCK_MONOTONIC_RAW:
+		return "CLOCK_MONOTONIC_RAW";
+	case CLOCK_REALTIME_COARSE:
+		return "CLOCK_REALTIME_COARSE";
+	case CLOCK_MONOTONIC_COARSE:
+		return "CLOCK_MONOTONIC_COARSE";
+	case CLOCK_BOOTTIME:
+		return "CLOCK_BOOTTIME";
+	case CLOCK_REALTIME_ALARM:
+		return "CLOCK_REALTIME_ALARM";
+	case CLOCK_BOOTTIME_ALARM:
+		return "CLOCK_BOOTTIME_ALARM";
+	case CLOCK_TAI:
+		return "CLOCK_TAI";
+	};
+	return "UNKNOWN_CLOCKID";
+}
+
+struct timespec timespec_add(struct timespec ts, unsigned long long ns)
+{
+	ts.tv_nsec += ns;
+	while (ts.tv_nsec >= NSEC_PER_SEC) {
+		ts.tv_nsec -= NSEC_PER_SEC;
+		ts.tv_sec++;
+	}
+	return ts;
+}
+
+
+long long timespec_sub(struct timespec a, struct timespec b)
+{
+	long long ret = NSEC_PER_SEC * b.tv_sec + b.tv_nsec;
+
+	ret -= NSEC_PER_SEC * a.tv_sec + a.tv_nsec;
+	return ret;
+}
+
+int nanosleep_lat_test(int clockid, long long ns)
+{
+	struct timespec start, end, target;
+	long long latency = 0;
+	int i, count;
+
+	target.tv_sec = ns/NSEC_PER_SEC;
+	target.tv_nsec = ns%NSEC_PER_SEC;
+
+	if (clock_gettime(clockid, &start))
+		return UNSUPPORTED;
+	if (clock_nanosleep(clockid, 0, &target, NULL))
+		return UNSUPPORTED;
+
+	count = 10;
+
+	/* First check relative latency */
+	clock_gettime(clockid, &start);
+	for (i = 0; i < count; i++)
+		clock_nanosleep(clockid, 0, &target, NULL);
+	clock_gettime(clockid, &end);
+
+	if (((timespec_sub(start, end)/count)-ns) > UNRESONABLE_LATENCY) {
+		printf("Large rel latency: %lld ns :", (timespec_sub(start, end)/count)-ns);
+		return -1;
+	}
+
+	/* Next check absolute latency */
+	for (i = 0; i < count; i++) {
+		clock_gettime(clockid, &start);
+		target = timespec_add(start, ns);
+		clock_nanosleep(clockid, TIMER_ABSTIME, &target, NULL);
+		clock_gettime(clockid, &end);
+		latency += timespec_sub(target, end);
+	}
+
+	if (latency/count > UNRESONABLE_LATENCY) {
+		printf("Large abs latency: %lld ns :", latency/count);
+		return -1;
+	}
+
+	return 0;
+}
+
+
+
+int main(int argc, char **argv)
+{
+	long long length;
+	int clockid, ret;
+
+	for (clockid = CLOCK_REALTIME; clockid < NR_CLOCKIDS; clockid++) {
+
+		/* Skip cputime clockids since nanosleep won't increment cputime */
+		if (clockid == CLOCK_PROCESS_CPUTIME_ID ||
+				clockid == CLOCK_THREAD_CPUTIME_ID ||
+				clockid == CLOCK_HWSPECIFIC)
+			continue;
+
+		printf("nsleep latency %-26s ", clockstring(clockid));
+
+		length = 10;
+		while (length <= (NSEC_PER_SEC * 10)) {
+			ret = nanosleep_lat_test(clockid, length);
+			if (ret)
+				break;
+			length *= 100;
+
+		}
+
+		if (ret == UNSUPPORTED) {
+			printf("[UNSUPPORTED]\n");
+			continue;
+		}
+		if (ret < 0) {
+			printf("[FAILED]\n");
+			return ksft_exit_fail();
+		}
+		printf("[OK]\n");
+	}
+	return ksft_exit_pass();
+}
diff --git a/tools/testing/selftests/timers/posix_timers.c b/tools/testing/selftests/timers/posix_timers.c
index f87d970..5a246a0 100644
--- a/tools/testing/selftests/timers/posix_timers.c
+++ b/tools/testing/selftests/timers/posix_timers.c
@@ -35,10 +35,11 @@ static void user_loop(void)
 static void kernel_loop(void)
 {
 	void *addr = sbrk(0);
+	int err = 0;
 
-	while (!done) {
-		brk(addr + 4096);
-		brk(addr);
+	while (!done && !err) {
+		err = brk(addr + 4096);
+		err |= brk(addr);
 	}
 }
 
@@ -190,8 +191,6 @@ static int check_timer_create(int which)
 
 int main(int argc, char **argv)
 {
-	int err;
-
 	printf("Testing posix timers. False negative may happen on CPU execution \n");
 	printf("based timers if other threads run on the CPU...\n");
 
diff --git a/tools/testing/selftests/timers/raw_skew.c b/tools/testing/selftests/timers/raw_skew.c
new file mode 100644
index 0000000..30906bf
--- /dev/null
+++ b/tools/testing/selftests/timers/raw_skew.c
@@ -0,0 +1,154 @@
+/* CLOCK_MONOTONIC vs CLOCK_MONOTONIC_RAW skew test
+ *		by: john stultz (johnstul@us.ibm.com)
+ *		    John Stultz <john.stultz@linaro.org>
+ *		(C) Copyright IBM 2012
+ *		(C) Copyright Linaro Limited 2015
+ *		Licensed under the GPLv2
+ *
+ *  To build:
+ *	$ gcc raw_skew.c -o raw_skew -lrt
+ *
+ *   This program is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation, either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ */
+
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <sys/time.h>
+#include <sys/timex.h>
+#include <time.h>
+#ifdef KTEST
+#include "../kselftest.h"
+#else
+static inline int ksft_exit_pass(void)
+{
+	exit(0);
+}
+static inline int ksft_exit_fail(void)
+{
+	exit(1);
+}
+#endif
+
+
+#define CLOCK_MONOTONIC_RAW		4
+#define NSEC_PER_SEC 1000000000LL
+
+#define shift_right(x, s) ({		\
+	__typeof__(x) __x = (x);	\
+	__typeof__(s) __s = (s);	\
+	__x < 0 ? -(-__x >> __s) : __x >> __s; \
+})
+
+long long llabs(long long val)
+{
+	if (val < 0)
+		val = -val;
+	return val;
+}
+
+unsigned long long ts_to_nsec(struct timespec ts)
+{
+	return ts.tv_sec * NSEC_PER_SEC + ts.tv_nsec;
+}
+
+struct timespec nsec_to_ts(long long ns)
+{
+	struct timespec ts;
+
+	ts.tv_sec = ns/NSEC_PER_SEC;
+	ts.tv_nsec = ns%NSEC_PER_SEC;
+	return ts;
+}
+
+long long diff_timespec(struct timespec start, struct timespec end)
+{
+	long long start_ns, end_ns;
+
+	start_ns = ts_to_nsec(start);
+	end_ns = ts_to_nsec(end);
+	return end_ns - start_ns;
+}
+
+void get_monotonic_and_raw(struct timespec *mon, struct timespec *raw)
+{
+	struct timespec start, mid, end;
+	long long diff = 0, tmp;
+	int i;
+
+	for (i = 0; i < 3; i++) {
+		long long newdiff;
+
+		clock_gettime(CLOCK_MONOTONIC, &start);
+		clock_gettime(CLOCK_MONOTONIC_RAW, &mid);
+		clock_gettime(CLOCK_MONOTONIC, &end);
+
+		newdiff = diff_timespec(start, end);
+		if (diff == 0 || newdiff < diff) {
+			diff = newdiff;
+			*raw = mid;
+			tmp = (ts_to_nsec(start) + ts_to_nsec(end))/2;
+			*mon = nsec_to_ts(tmp);
+		}
+	}
+}
+
+int main(int argv, char **argc)
+{
+	struct timespec mon, raw, start, end;
+	long long delta1, delta2, interval, eppm, ppm;
+	struct timex tx1, tx2;
+
+	setbuf(stdout, NULL);
+
+	if (clock_gettime(CLOCK_MONOTONIC_RAW, &raw)) {
+		printf("ERR: NO CLOCK_MONOTONIC_RAW\n");
+		return -1;
+	}
+
+	tx1.modes = 0;
+	adjtimex(&tx1);
+	get_monotonic_and_raw(&mon, &raw);
+	start = mon;
+	delta1 = diff_timespec(mon, raw);
+
+	if (tx1.offset)
+		printf("WARNING: ADJ_OFFSET in progress, this will cause inaccurate results\n");
+
+	printf("Estimating clock drift: ");
+	sleep(120);
+
+	get_monotonic_and_raw(&mon, &raw);
+	end = mon;
+	tx2.modes = 0;
+	adjtimex(&tx2);
+	delta2 = diff_timespec(mon, raw);
+
+	interval = diff_timespec(start, end);
+
+	/* calculate measured ppm between MONOTONIC and MONOTONIC_RAW */
+	eppm = ((delta2-delta1)*NSEC_PER_SEC)/interval;
+	eppm = -eppm;
+	printf("%lld.%i(est)", eppm/1000, abs((int)(eppm%1000)));
+
+	/* Avg the two actual freq samples adjtimex gave us */
+	ppm = (tx1.freq + tx2.freq) * 1000 / 2;
+	ppm = (long long)tx1.freq * 1000;
+	ppm = shift_right(ppm, 16);
+	printf(" %lld.%i(act)", ppm/1000, abs((int)(ppm%1000)));
+
+	if (llabs(eppm - ppm) > 1000) {
+		printf("	[FAILED]\n");
+		return ksft_exit_fail();
+	}
+	printf("	[OK]\n");
+	return  ksft_exit_pass();
+}
diff --git a/tools/testing/selftests/timers/rtctest.c b/tools/testing/selftests/timers/rtctest.c
new file mode 100644
index 0000000..d80ae85
--- /dev/null
+++ b/tools/testing/selftests/timers/rtctest.c
@@ -0,0 +1,271 @@
+/*
+ *      Real Time Clock Driver Test/Example Program
+ *
+ *      Compile with:
+ *		     gcc -s -Wall -Wstrict-prototypes rtctest.c -o rtctest
+ *
+ *      Copyright (C) 1996, Paul Gortmaker.
+ *
+ *      Released under the GNU General Public License, version 2,
+ *      included herein by reference.
+ *
+ */
+
+#include <stdio.h>
+#include <linux/rtc.h>
+#include <sys/ioctl.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <errno.h>
+
+
+/*
+ * This expects the new RTC class driver framework, working with
+ * clocks that will often not be clones of what the PC-AT had.
+ * Use the command line to specify another RTC if you need one.
+ */
+static const char default_rtc[] = "/dev/rtc0";
+
+
+int main(int argc, char **argv)
+{
+	int i, fd, retval, irqcount = 0;
+	unsigned long tmp, data;
+	struct rtc_time rtc_tm;
+	const char *rtc = default_rtc;
+	struct timeval start, end, diff;
+
+	switch (argc) {
+	case 2:
+		rtc = argv[1];
+		/* FALLTHROUGH */
+	case 1:
+		break;
+	default:
+		fprintf(stderr, "usage:  rtctest [rtcdev]\n");
+		return 1;
+	}
+
+	fd = open(rtc, O_RDONLY);
+
+	if (fd ==  -1) {
+		perror(rtc);
+		exit(errno);
+	}
+
+	fprintf(stderr, "\n\t\t\tRTC Driver Test Example.\n\n");
+
+	/* Turn on update interrupts (one per second) */
+	retval = ioctl(fd, RTC_UIE_ON, 0);
+	if (retval == -1) {
+		if (errno == ENOTTY) {
+			fprintf(stderr,
+				"\n...Update IRQs not supported.\n");
+			goto test_READ;
+		}
+		perror("RTC_UIE_ON ioctl");
+		exit(errno);
+	}
+
+	fprintf(stderr, "Counting 5 update (1/sec) interrupts from reading %s:",
+			rtc);
+	fflush(stderr);
+	for (i=1; i<6; i++) {
+		/* This read will block */
+		retval = read(fd, &data, sizeof(unsigned long));
+		if (retval == -1) {
+			perror("read");
+			exit(errno);
+		}
+		fprintf(stderr, " %d",i);
+		fflush(stderr);
+		irqcount++;
+	}
+
+	fprintf(stderr, "\nAgain, from using select(2) on /dev/rtc:");
+	fflush(stderr);
+	for (i=1; i<6; i++) {
+		struct timeval tv = {5, 0};     /* 5 second timeout on select */
+		fd_set readfds;
+
+		FD_ZERO(&readfds);
+		FD_SET(fd, &readfds);
+		/* The select will wait until an RTC interrupt happens. */
+		retval = select(fd+1, &readfds, NULL, NULL, &tv);
+		if (retval == -1) {
+		        perror("select");
+		        exit(errno);
+		}
+		/* This read won't block unlike the select-less case above. */
+		retval = read(fd, &data, sizeof(unsigned long));
+		if (retval == -1) {
+		        perror("read");
+		        exit(errno);
+		}
+		fprintf(stderr, " %d",i);
+		fflush(stderr);
+		irqcount++;
+	}
+
+	/* Turn off update interrupts */
+	retval = ioctl(fd, RTC_UIE_OFF, 0);
+	if (retval == -1) {
+		perror("RTC_UIE_OFF ioctl");
+		exit(errno);
+	}
+
+test_READ:
+	/* Read the RTC time/date */
+	retval = ioctl(fd, RTC_RD_TIME, &rtc_tm);
+	if (retval == -1) {
+		perror("RTC_RD_TIME ioctl");
+		exit(errno);
+	}
+
+	fprintf(stderr, "\n\nCurrent RTC date/time is %d-%d-%d, %02d:%02d:%02d.\n",
+		rtc_tm.tm_mday, rtc_tm.tm_mon + 1, rtc_tm.tm_year + 1900,
+		rtc_tm.tm_hour, rtc_tm.tm_min, rtc_tm.tm_sec);
+
+	/* Set the alarm to 5 sec in the future, and check for rollover */
+	rtc_tm.tm_sec += 5;
+	if (rtc_tm.tm_sec >= 60) {
+		rtc_tm.tm_sec %= 60;
+		rtc_tm.tm_min++;
+	}
+	if (rtc_tm.tm_min == 60) {
+		rtc_tm.tm_min = 0;
+		rtc_tm.tm_hour++;
+	}
+	if (rtc_tm.tm_hour == 24)
+		rtc_tm.tm_hour = 0;
+
+	retval = ioctl(fd, RTC_ALM_SET, &rtc_tm);
+	if (retval == -1) {
+		if (errno == ENOTTY) {
+			fprintf(stderr,
+				"\n...Alarm IRQs not supported.\n");
+			goto test_PIE;
+		}
+		perror("RTC_ALM_SET ioctl");
+		exit(errno);
+	}
+
+	/* Read the current alarm settings */
+	retval = ioctl(fd, RTC_ALM_READ, &rtc_tm);
+	if (retval == -1) {
+		perror("RTC_ALM_READ ioctl");
+		exit(errno);
+	}
+
+	fprintf(stderr, "Alarm time now set to %02d:%02d:%02d.\n",
+		rtc_tm.tm_hour, rtc_tm.tm_min, rtc_tm.tm_sec);
+
+	/* Enable alarm interrupts */
+	retval = ioctl(fd, RTC_AIE_ON, 0);
+	if (retval == -1) {
+		perror("RTC_AIE_ON ioctl");
+		exit(errno);
+	}
+
+	fprintf(stderr, "Waiting 5 seconds for alarm...");
+	fflush(stderr);
+	/* This blocks until the alarm ring causes an interrupt */
+	retval = read(fd, &data, sizeof(unsigned long));
+	if (retval == -1) {
+		perror("read");
+		exit(errno);
+	}
+	irqcount++;
+	fprintf(stderr, " okay. Alarm rang.\n");
+
+	/* Disable alarm interrupts */
+	retval = ioctl(fd, RTC_AIE_OFF, 0);
+	if (retval == -1) {
+		perror("RTC_AIE_OFF ioctl");
+		exit(errno);
+	}
+
+test_PIE:
+	/* Read periodic IRQ rate */
+	retval = ioctl(fd, RTC_IRQP_READ, &tmp);
+	if (retval == -1) {
+		/* not all RTCs support periodic IRQs */
+		if (errno == ENOTTY) {
+			fprintf(stderr, "\nNo periodic IRQ support\n");
+			goto done;
+		}
+		perror("RTC_IRQP_READ ioctl");
+		exit(errno);
+	}
+	fprintf(stderr, "\nPeriodic IRQ rate is %ldHz.\n", tmp);
+
+	fprintf(stderr, "Counting 20 interrupts at:");
+	fflush(stderr);
+
+	/* The frequencies 128Hz, 256Hz, ... 8192Hz are only allowed for root. */
+	for (tmp=2; tmp<=64; tmp*=2) {
+
+		retval = ioctl(fd, RTC_IRQP_SET, tmp);
+		if (retval == -1) {
+			/* not all RTCs can change their periodic IRQ rate */
+			if (errno == ENOTTY) {
+				fprintf(stderr,
+					"\n...Periodic IRQ rate is fixed\n");
+				goto done;
+			}
+			perror("RTC_IRQP_SET ioctl");
+			exit(errno);
+		}
+
+		fprintf(stderr, "\n%ldHz:\t", tmp);
+		fflush(stderr);
+
+		/* Enable periodic interrupts */
+		retval = ioctl(fd, RTC_PIE_ON, 0);
+		if (retval == -1) {
+			perror("RTC_PIE_ON ioctl");
+			exit(errno);
+		}
+
+		for (i=1; i<21; i++) {
+			gettimeofday(&start, NULL);
+			/* This blocks */
+			retval = read(fd, &data, sizeof(unsigned long));
+			if (retval == -1) {
+				perror("read");
+				exit(errno);
+			}
+			gettimeofday(&end, NULL);
+			timersub(&end, &start, &diff);
+			if (diff.tv_sec > 0 ||
+			    diff.tv_usec > ((1000000L / tmp) * 1.10)) {
+				fprintf(stderr, "\nPIE delta error: %ld.%06ld should be close to 0.%06ld\n",
+				       diff.tv_sec, diff.tv_usec,
+				       (1000000L / tmp));
+				fflush(stdout);
+				exit(-1);
+			}
+
+			fprintf(stderr, " %d",i);
+			fflush(stderr);
+			irqcount++;
+		}
+
+		/* Disable periodic interrupts */
+		retval = ioctl(fd, RTC_PIE_OFF, 0);
+		if (retval == -1) {
+			perror("RTC_PIE_OFF ioctl");
+			exit(errno);
+		}
+	}
+
+done:
+	fprintf(stderr, "\n\n\t\t\t *** Test complete ***\n");
+
+	close(fd);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/timers/set-2038.c b/tools/testing/selftests/timers/set-2038.c
new file mode 100644
index 0000000..c8a7e14
--- /dev/null
+++ b/tools/testing/selftests/timers/set-2038.c
@@ -0,0 +1,144 @@
+/* Time bounds setting test
+ *		by: john stultz (johnstul@us.ibm.com)
+ *		(C) Copyright IBM 2012
+ *		Licensed under the GPLv2
+ *
+ *  NOTE: This is a meta-test which sets the time to edge cases then
+ *  uses other tests to detect problems. Thus this test requires that
+ *  the inconsistency-check and nanosleep tests be present in the same
+ *  directory it is run from.
+ *
+ *  To build:
+ *	$ gcc set-2038.c -o set-2038 -lrt
+ *
+ *   This program is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation, either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <time.h>
+#include <sys/time.h>
+#ifdef KTEST
+#include "../kselftest.h"
+#else
+static inline int ksft_exit_pass(void)
+{
+	exit(0);
+}
+static inline int ksft_exit_fail(void)
+{
+	exit(1);
+}
+#endif
+
+#define NSEC_PER_SEC 1000000000LL
+
+#define KTIME_MAX	((long long)~((unsigned long long)1 << 63))
+#define KTIME_SEC_MAX	(KTIME_MAX / NSEC_PER_SEC)
+
+#define YEAR_1901 (-0x7fffffffL)
+#define YEAR_1970 1
+#define YEAR_2038 0x7fffffffL			/*overflows 32bit time_t */
+#define YEAR_2262 KTIME_SEC_MAX			/*overflows 64bit ktime_t */
+#define YEAR_MAX  ((long long)((1ULL<<63)-1))	/*overflows 64bit time_t */
+
+int is32bits(void)
+{
+	return (sizeof(long) == 4);
+}
+
+int settime(long long time)
+{
+	struct timeval now;
+	int ret;
+
+	now.tv_sec = (time_t)time;
+	now.tv_usec  = 0;
+
+	ret = settimeofday(&now, NULL);
+
+	printf("Setting time to 0x%lx: %d\n", (long)time, ret);
+	return ret;
+}
+
+int do_tests(void)
+{
+	int ret;
+
+	ret = system("date");
+	ret = system("./inconsistency-check -c 0 -t 20");
+	ret |= system("./nanosleep");
+	ret |= system("./nsleep-lat");
+	return ret;
+
+}
+
+int main(int argc, char *argv[])
+{
+	int ret = 0;
+	int opt, dangerous = 0;
+	time_t start;
+
+	/* Process arguments */
+	while ((opt = getopt(argc, argv, "d")) != -1) {
+		switch (opt) {
+		case 'd':
+			dangerous = 1;
+		}
+	}
+
+	start = time(0);
+
+	/* First test that crazy values don't work */
+	if (!settime(YEAR_1901)) {
+		ret = -1;
+		goto out;
+	}
+	if (!settime(YEAR_MAX)) {
+		ret = -1;
+		goto out;
+	}
+	if (!is32bits() && !settime(YEAR_2262)) {
+		ret = -1;
+		goto out;
+	}
+
+	/* Now test behavior near edges */
+	settime(YEAR_1970);
+	ret = do_tests();
+	if (ret)
+		goto out;
+
+	settime(YEAR_2038 - 600);
+	ret = do_tests();
+	if (ret)
+		goto out;
+
+	/* The rest of the tests can blowup on 32bit systems */
+	if (is32bits() && !dangerous)
+		goto out;
+	/* Test rollover behavior 32bit edge */
+	settime(YEAR_2038 - 10);
+	ret = do_tests();
+	if (ret)
+		goto out;
+
+	settime(YEAR_2262 - 600);
+	ret = do_tests();
+
+out:
+	/* restore clock */
+	settime(start);
+	if (ret)
+		return ksft_exit_fail();
+	return ksft_exit_pass();
+}
diff --git a/tools/testing/selftests/timers/set-tai.c b/tools/testing/selftests/timers/set-tai.c
new file mode 100644
index 0000000..dc88dbc
--- /dev/null
+++ b/tools/testing/selftests/timers/set-tai.c
@@ -0,0 +1,79 @@
+/* Set tai offset
+ *              by: John Stultz <john.stultz@linaro.org>
+ *              (C) Copyright Linaro 2013
+ *              Licensed under the GPLv2
+ *
+ *   This program is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation, either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ */
+
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#include <sys/time.h>
+#include <sys/timex.h>
+#include <string.h>
+#include <signal.h>
+#include <unistd.h>
+#ifdef KTEST
+#include "../kselftest.h"
+#else
+static inline int ksft_exit_pass(void)
+{
+	exit(0);
+}
+static inline int ksft_exit_fail(void)
+{
+	exit(1);
+}
+#endif
+
+int set_tai(int offset)
+{
+	struct timex tx;
+
+	memset(&tx, 0, sizeof(tx));
+
+	tx.modes = ADJ_TAI;
+	tx.constant = offset;
+
+	return adjtimex(&tx);
+}
+
+int get_tai(void)
+{
+	struct timex tx;
+
+	memset(&tx, 0, sizeof(tx));
+
+	adjtimex(&tx);
+	return tx.tai;
+}
+
+int main(int argc, char **argv)
+{
+	int i, ret;
+
+	ret = get_tai();
+	printf("tai offset started at %i\n", ret);
+
+	printf("Checking tai offsets can be properly set: ");
+	for (i = 1; i <= 60; i++) {
+		ret = set_tai(i);
+		ret = get_tai();
+		if (ret != i) {
+			printf("[FAILED] expected: %i got %i\n", i, ret);
+			return ksft_exit_fail();
+		}
+	}
+	printf("[OK]\n");
+	return ksft_exit_pass();
+}
diff --git a/tools/testing/selftests/timers/set-timer-lat.c b/tools/testing/selftests/timers/set-timer-lat.c
new file mode 100644
index 0000000..4fc98c5
--- /dev/null
+++ b/tools/testing/selftests/timers/set-timer-lat.c
@@ -0,0 +1,216 @@
+/* set_timer latency test
+ *		John Stultz (john.stultz@linaro.org)
+ *              (C) Copyright Linaro 2014
+ *              Licensed under the GPLv2
+ *
+ *   This test makes sure the set_timer api is correct
+ *
+ *  To build:
+ *	$ gcc set-timer-lat.c -o set-timer-lat -lrt
+ *
+ *   This program is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation, either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ */
+
+
+#include <stdio.h>
+#include <unistd.h>
+#include <time.h>
+#include <string.h>
+#include <signal.h>
+#include <stdlib.h>
+#include <pthread.h>
+#ifdef KTEST
+#include "../kselftest.h"
+#else
+static inline int ksft_exit_pass(void)
+{
+	exit(0);
+}
+static inline int ksft_exit_fail(void)
+{
+	exit(1);
+}
+#endif
+
+#define CLOCK_REALTIME			0
+#define CLOCK_MONOTONIC			1
+#define CLOCK_PROCESS_CPUTIME_ID	2
+#define CLOCK_THREAD_CPUTIME_ID		3
+#define CLOCK_MONOTONIC_RAW		4
+#define CLOCK_REALTIME_COARSE		5
+#define CLOCK_MONOTONIC_COARSE		6
+#define CLOCK_BOOTTIME			7
+#define CLOCK_REALTIME_ALARM		8
+#define CLOCK_BOOTTIME_ALARM		9
+#define CLOCK_HWSPECIFIC		10
+#define CLOCK_TAI			11
+#define NR_CLOCKIDS			12
+
+
+#define NSEC_PER_SEC 1000000000ULL
+#define UNRESONABLE_LATENCY 40000000 /* 40ms in nanosecs */
+
+#define TIMER_SECS 1
+int alarmcount;
+int clock_id;
+struct timespec start_time;
+long long max_latency_ns;
+
+char *clockstring(int clockid)
+{
+	switch (clockid) {
+	case CLOCK_REALTIME:
+		return "CLOCK_REALTIME";
+	case CLOCK_MONOTONIC:
+		return "CLOCK_MONOTONIC";
+	case CLOCK_PROCESS_CPUTIME_ID:
+		return "CLOCK_PROCESS_CPUTIME_ID";
+	case CLOCK_THREAD_CPUTIME_ID:
+		return "CLOCK_THREAD_CPUTIME_ID";
+	case CLOCK_MONOTONIC_RAW:
+		return "CLOCK_MONOTONIC_RAW";
+	case CLOCK_REALTIME_COARSE:
+		return "CLOCK_REALTIME_COARSE";
+	case CLOCK_MONOTONIC_COARSE:
+		return "CLOCK_MONOTONIC_COARSE";
+	case CLOCK_BOOTTIME:
+		return "CLOCK_BOOTTIME";
+	case CLOCK_REALTIME_ALARM:
+		return "CLOCK_REALTIME_ALARM";
+	case CLOCK_BOOTTIME_ALARM:
+		return "CLOCK_BOOTTIME_ALARM";
+	case CLOCK_TAI:
+		return "CLOCK_TAI";
+	};
+	return "UNKNOWN_CLOCKID";
+}
+
+
+long long timespec_sub(struct timespec a, struct timespec b)
+{
+	long long ret = NSEC_PER_SEC * b.tv_sec + b.tv_nsec;
+
+	ret -= NSEC_PER_SEC * a.tv_sec + a.tv_nsec;
+	return ret;
+}
+
+
+void sigalarm(int signo)
+{
+	long long delta_ns;
+	struct timespec ts;
+
+	clock_gettime(clock_id, &ts);
+	alarmcount++;
+
+	delta_ns = timespec_sub(start_time, ts);
+	delta_ns -= NSEC_PER_SEC * TIMER_SECS * alarmcount;
+
+	if (delta_ns < 0)
+		printf("%s timer fired early: FAIL\n", clockstring(clock_id));
+
+	if (delta_ns > max_latency_ns)
+		max_latency_ns = delta_ns;
+}
+
+int do_timer(int clock_id, int flags)
+{
+	struct sigevent se;
+	timer_t tm1;
+	struct itimerspec its1, its2;
+	int err;
+
+	/* Set up timer: */
+	memset(&se, 0, sizeof(se));
+	se.sigev_notify = SIGEV_SIGNAL;
+	se.sigev_signo = SIGRTMAX;
+	se.sigev_value.sival_int = 0;
+
+	max_latency_ns = 0;
+	alarmcount = 0;
+
+	err = timer_create(clock_id, &se, &tm1);
+	if (err) {
+		if ((clock_id == CLOCK_REALTIME_ALARM) ||
+		    (clock_id == CLOCK_BOOTTIME_ALARM)) {
+			printf("%-22s %s missing CAP_WAKE_ALARM?    : [UNSUPPORTED]\n",
+					clockstring(clock_id),
+					flags ? "ABSTIME":"RELTIME");
+			return 0;
+		}
+		printf("%s - timer_create() failed\n", clockstring(clock_id));
+		return -1;
+	}
+
+	clock_gettime(clock_id, &start_time);
+	if (flags) {
+		its1.it_value = start_time;
+		its1.it_value.tv_sec += TIMER_SECS;
+	} else {
+		its1.it_value.tv_sec = TIMER_SECS;
+		its1.it_value.tv_nsec = 0;
+	}
+	its1.it_interval.tv_sec = TIMER_SECS;
+	its1.it_interval.tv_nsec = 0;
+
+	err = timer_settime(tm1, flags, &its1, &its2);
+	if (err) {
+		printf("%s - timer_settime() failed\n", clockstring(clock_id));
+		return -1;
+	}
+
+	while (alarmcount < 5)
+		sleep(1);
+
+	printf("%-22s %s max latency: %10lld ns : ",
+			clockstring(clock_id),
+			flags ? "ABSTIME":"RELTIME",
+			max_latency_ns);
+
+	timer_delete(tm1);
+	if (max_latency_ns < UNRESONABLE_LATENCY) {
+		printf("[OK]\n");
+		return 0;
+	}
+	printf("[FAILED]\n");
+	return -1;
+}
+
+int main(void)
+{
+	struct sigaction act;
+	int signum = SIGRTMAX;
+	int ret = 0;
+
+	/* Set up signal handler: */
+	sigfillset(&act.sa_mask);
+	act.sa_flags = 0;
+	act.sa_handler = sigalarm;
+	sigaction(signum, &act, NULL);
+
+	printf("Setting timers for every %i seconds\n", TIMER_SECS);
+	for (clock_id = 0; clock_id < NR_CLOCKIDS; clock_id++) {
+
+		if ((clock_id == CLOCK_PROCESS_CPUTIME_ID) ||
+				(clock_id == CLOCK_THREAD_CPUTIME_ID) ||
+				(clock_id == CLOCK_MONOTONIC_RAW) ||
+				(clock_id == CLOCK_REALTIME_COARSE) ||
+				(clock_id == CLOCK_MONOTONIC_COARSE) ||
+				(clock_id == CLOCK_HWSPECIFIC))
+			continue;
+
+		ret |= do_timer(clock_id, TIMER_ABSTIME);
+		ret |= do_timer(clock_id, 0);
+	}
+	if (ret)
+		return ksft_exit_fail();
+	return ksft_exit_pass();
+}
diff --git a/tools/testing/selftests/timers/skew_consistency.c b/tools/testing/selftests/timers/skew_consistency.c
new file mode 100644
index 0000000..5562f84
--- /dev/null
+++ b/tools/testing/selftests/timers/skew_consistency.c
@@ -0,0 +1,89 @@
+/* ADJ_FREQ Skew consistency test
+ *		by: john stultz (johnstul@us.ibm.com)
+ *		(C) Copyright IBM 2012
+ *		Licensed under the GPLv2
+ *
+ *  NOTE: This is a meta-test which cranks the ADJ_FREQ knob back
+ *  and forth and watches for consistency problems. Thus this test requires
+ *  that the inconsistency-check tests be present in the same directory it
+ *  is run from.
+ *
+ *  To build:
+ *	$ gcc skew_consistency.c -o skew_consistency -lrt
+ *
+ *   This program is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation, either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ */
+
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/time.h>
+#include <sys/timex.h>
+#include <time.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/wait.h>
+#ifdef KTEST
+#include "../kselftest.h"
+#else
+static inline int ksft_exit_pass(void)
+{
+	exit(0);
+}
+static inline int ksft_exit_fail(void)
+{
+	exit(1);
+}
+#endif
+
+#define NSEC_PER_SEC 1000000000LL
+
+int main(int argv, char **argc)
+{
+	struct timex tx;
+	int ret, ppm;
+	pid_t pid;
+
+
+	printf("Running Asyncrhonous Frequency Changing Tests...\n");
+
+	pid = fork();
+	if (!pid)
+		return system("./inconsistency-check -c 1 -t 600");
+
+	ppm = 500;
+	ret = 0;
+
+	while (pid != waitpid(pid, &ret, WNOHANG)) {
+		ppm = -ppm;
+		tx.modes = ADJ_FREQUENCY;
+		tx.freq = ppm << 16;
+		adjtimex(&tx);
+		usleep(500000);
+	}
+
+	/* Set things back */
+	tx.modes = ADJ_FREQUENCY;
+	tx.offset = 0;
+	adjtimex(&tx);
+
+
+	if (ret) {
+		printf("[FAILED]\n");
+		return ksft_exit_fail();
+	}
+	printf("[OK]\n");
+	return ksft_exit_pass();
+}
diff --git a/tools/testing/selftests/timers/threadtest.c b/tools/testing/selftests/timers/threadtest.c
new file mode 100644
index 0000000..e632e11
--- /dev/null
+++ b/tools/testing/selftests/timers/threadtest.c
@@ -0,0 +1,204 @@
+/* threadtest.c
+ *		by: john stultz (johnstul@us.ibm.com)
+ *		(C) Copyright IBM 2004, 2005, 2006, 2012
+ *		Licensed under the GPLv2
+ *
+ *  To build:
+ *	$ gcc threadtest.c -o threadtest -lrt
+ *
+ *   This program is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation, either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ */
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <sys/time.h>
+#include <pthread.h>
+#ifdef KTEST
+#include "../kselftest.h"
+#else
+static inline int ksft_exit_pass(void)
+{
+	exit(0);
+}
+static inline int ksft_exit_fail(void)
+{
+	exit(1);
+}
+#endif
+
+
+/* serializes shared list access */
+pthread_mutex_t list_lock = PTHREAD_MUTEX_INITIALIZER;
+/* serializes console output */
+pthread_mutex_t print_lock = PTHREAD_MUTEX_INITIALIZER;
+
+
+#define MAX_THREADS 128
+#define LISTSIZE 128
+
+int done = 0;
+
+struct timespec global_list[LISTSIZE];
+int listcount = 0;
+
+
+void checklist(struct timespec *list, int size)
+{
+	int i, j;
+	struct timespec *a, *b;
+
+	/* scan the list */
+	for (i = 0; i < size-1; i++) {
+		a = &list[i];
+		b = &list[i+1];
+
+		/* look for any time inconsistencies */
+		if ((b->tv_sec <= a->tv_sec) &&
+			(b->tv_nsec < a->tv_nsec)) {
+
+			/* flag other threads */
+			done = 1;
+
+			/*serialize printing to avoid junky output*/
+			pthread_mutex_lock(&print_lock);
+
+			/* dump the list */
+			printf("\n");
+			for (j = 0; j < size; j++) {
+				if (j == i)
+					printf("---------------\n");
+				printf("%lu:%lu\n", list[j].tv_sec, list[j].tv_nsec);
+				if (j == i+1)
+					printf("---------------\n");
+			}
+			printf("[FAILED]\n");
+
+			pthread_mutex_unlock(&print_lock);
+		}
+	}
+}
+
+/* The shared thread shares a global list
+ * that each thread fills while holding the lock.
+ * This stresses clock syncronization across cpus.
+ */
+void *shared_thread(void *arg)
+{
+	while (!done) {
+		/* protect the list */
+		pthread_mutex_lock(&list_lock);
+
+		/* see if we're ready to check the list */
+		if (listcount >= LISTSIZE) {
+			checklist(global_list, LISTSIZE);
+			listcount = 0;
+		}
+		clock_gettime(CLOCK_MONOTONIC, &global_list[listcount++]);
+
+		pthread_mutex_unlock(&list_lock);
+	}
+	return NULL;
+}
+
+
+/* Each independent thread fills in its own
+ * list. This stresses clock_gettime() lock contention.
+ */
+void *independent_thread(void *arg)
+{
+	struct timespec my_list[LISTSIZE];
+	int count;
+
+	while (!done) {
+		/* fill the list */
+		for (count = 0; count < LISTSIZE; count++)
+			clock_gettime(CLOCK_MONOTONIC, &my_list[count]);
+		checklist(my_list, LISTSIZE);
+	}
+	return NULL;
+}
+
+#define DEFAULT_THREAD_COUNT 8
+#define DEFAULT_RUNTIME 30
+
+int main(int argc, char **argv)
+{
+	int thread_count, i;
+	time_t start, now, runtime;
+	char buf[255];
+	pthread_t pth[MAX_THREADS];
+	int opt;
+	void *tret;
+	int ret = 0;
+	void *(*thread)(void *) = shared_thread;
+
+	thread_count = DEFAULT_THREAD_COUNT;
+	runtime = DEFAULT_RUNTIME;
+
+	/* Process arguments */
+	while ((opt = getopt(argc, argv, "t:n:i")) != -1) {
+		switch (opt) {
+		case 't':
+			runtime = atoi(optarg);
+			break;
+		case 'n':
+			thread_count = atoi(optarg);
+			break;
+		case 'i':
+			thread = independent_thread;
+			printf("using independent threads\n");
+			break;
+		default:
+			printf("Usage: %s [-t <secs>] [-n <numthreads>] [-i]\n", argv[0]);
+			printf("	-t: time to run\n");
+			printf("	-n: number of threads\n");
+			printf("	-i: use independent threads\n");
+			return -1;
+		}
+	}
+
+	if (thread_count > MAX_THREADS)
+		thread_count = MAX_THREADS;
+
+
+	setbuf(stdout, NULL);
+
+	start = time(0);
+	strftime(buf, 255, "%a, %d %b %Y %T %z", localtime(&start));
+	printf("%s\n", buf);
+	printf("Testing consistency with %i threads for %ld seconds: ", thread_count, runtime);
+
+	/* spawn */
+	for (i = 0; i < thread_count; i++)
+		pthread_create(&pth[i], 0, thread, 0);
+
+	while (time(&now) < start + runtime) {
+		sleep(1);
+		if (done) {
+			ret = 1;
+			strftime(buf, 255, "%a, %d %b %Y %T %z", localtime(&now));
+			printf("%s\n", buf);
+			goto out;
+		}
+	}
+	printf("[OK]\n");
+	done = 1;
+
+out:
+	/* wait */
+	for (i = 0; i < thread_count; i++)
+		pthread_join(pth[i], &tret);
+
+	/* die */
+	if (ret)
+		ksft_exit_fail();
+	return ksft_exit_pass();
+}
diff --git a/tools/testing/selftests/timers/valid-adjtimex.c b/tools/testing/selftests/timers/valid-adjtimex.c
new file mode 100644
index 0000000..e86d937
--- /dev/null
+++ b/tools/testing/selftests/timers/valid-adjtimex.c
@@ -0,0 +1,202 @@
+/* valid adjtimex test
+ *              by: John Stultz <john.stultz@linaro.org>
+ *              (C) Copyright Linaro 2015
+ *              Licensed under the GPLv2
+ *
+ *  This test validates adjtimex interface with valid
+ *  and invalid test data.
+ *
+ *  Usage: valid-adjtimex
+ *
+ *  To build:
+ *	$ gcc valid-adjtimex.c -o valid-adjtimex -lrt
+ *
+ *   This program is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation, either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ */
+
+
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#include <sys/time.h>
+#include <sys/timex.h>
+#include <string.h>
+#include <signal.h>
+#include <unistd.h>
+#ifdef KTEST
+#include "../kselftest.h"
+#else
+static inline int ksft_exit_pass(void)
+{
+	exit(0);
+}
+static inline int ksft_exit_fail(void)
+{
+	exit(1);
+}
+#endif
+
+#define NSEC_PER_SEC 1000000000L
+
+/* clear NTP time_status & time_state */
+int clear_time_state(void)
+{
+	struct timex tx;
+	int ret;
+
+	tx.modes = ADJ_STATUS;
+	tx.status = 0;
+	ret = adjtimex(&tx);
+	return ret;
+}
+
+#define NUM_FREQ_VALID 32
+#define NUM_FREQ_OUTOFRANGE 4
+#define NUM_FREQ_INVALID 2
+
+long valid_freq[NUM_FREQ_VALID] = {
+	-499<<16,
+	-450<<16,
+	-400<<16,
+	-350<<16,
+	-300<<16,
+	-250<<16,
+	-200<<16,
+	-150<<16,
+	-100<<16,
+	-75<<16,
+	-50<<16,
+	-25<<16,
+	-10<<16,
+	-5<<16,
+	-1<<16,
+	-1000,
+	1<<16,
+	5<<16,
+	10<<16,
+	25<<16,
+	50<<16,
+	75<<16,
+	100<<16,
+	150<<16,
+	200<<16,
+	250<<16,
+	300<<16,
+	350<<16,
+	400<<16,
+	450<<16,
+	499<<16,
+};
+
+long outofrange_freq[NUM_FREQ_OUTOFRANGE] = {
+	-1000<<16,
+	-550<<16,
+	550<<16,
+	1000<<16,
+};
+
+#define LONG_MAX (~0UL>>1)
+#define LONG_MIN (-LONG_MAX - 1)
+
+long invalid_freq[NUM_FREQ_INVALID] = {
+	LONG_MAX,
+	LONG_MIN,
+};
+
+int validate_freq(void)
+{
+	struct timex tx;
+	int ret, pass = 0;
+	int i;
+
+	clear_time_state();
+
+	memset(&tx, 0, sizeof(struct timex));
+	/* Set the leap second insert flag */
+
+	printf("Testing ADJ_FREQ... ");
+	for (i = 0; i < NUM_FREQ_VALID; i++) {
+		tx.modes = ADJ_FREQUENCY;
+		tx.freq = valid_freq[i];
+
+		ret = adjtimex(&tx);
+		if (ret < 0) {
+			printf("[FAIL]\n");
+			printf("Error: adjtimex(ADJ_FREQ, %ld - %ld ppm\n",
+				valid_freq[i], valid_freq[i]>>16);
+			pass = -1;
+			goto out;
+		}
+		tx.modes = 0;
+		ret = adjtimex(&tx);
+		if (tx.freq != valid_freq[i]) {
+			printf("Warning: freq value %ld not what we set it (%ld)!\n",
+					tx.freq, valid_freq[i]);
+		}
+	}
+	for (i = 0; i < NUM_FREQ_OUTOFRANGE; i++) {
+		tx.modes = ADJ_FREQUENCY;
+		tx.freq = outofrange_freq[i];
+
+		ret = adjtimex(&tx);
+		if (ret < 0) {
+			printf("[FAIL]\n");
+			printf("Error: adjtimex(ADJ_FREQ, %ld - %ld ppm\n",
+				outofrange_freq[i], outofrange_freq[i]>>16);
+			pass = -1;
+			goto out;
+		}
+		tx.modes = 0;
+		ret = adjtimex(&tx);
+		if (tx.freq == outofrange_freq[i]) {
+			printf("[FAIL]\n");
+			printf("ERROR: out of range value %ld actually set!\n",
+					tx.freq);
+			pass = -1;
+			goto out;
+		}
+	}
+
+
+	if (sizeof(long) == 8) { /* this case only applies to 64bit systems */
+		for (i = 0; i < NUM_FREQ_INVALID; i++) {
+			tx.modes = ADJ_FREQUENCY;
+			tx.freq = invalid_freq[i];
+			ret = adjtimex(&tx);
+			if (ret >= 0) {
+				printf("[FAIL]\n");
+				printf("Error: No failure on invalid ADJ_FREQUENCY %ld\n",
+					invalid_freq[i]);
+				pass = -1;
+				goto out;
+			}
+		}
+	}
+
+	printf("[OK]\n");
+out:
+	/* reset freq to zero */
+	tx.modes = ADJ_FREQUENCY;
+	tx.freq = 0;
+	ret = adjtimex(&tx);
+
+	return pass;
+}
+
+
+int main(int argc, char **argv)
+{
+	if (validate_freq())
+		return ksft_exit_fail();
+
+	return ksft_exit_pass();
+}
diff --git a/tools/testing/selftests/user/Makefile b/tools/testing/selftests/user/Makefile
index 12c9d15..d401b63 100644
--- a/tools/testing/selftests/user/Makefile
+++ b/tools/testing/selftests/user/Makefile
@@ -3,5 +3,6 @@
 # No binaries, but make sure arg-less "make" doesn't trigger "run_tests"
 all:
 
-run_tests: all
-	./test_user_copy.sh
+TEST_PROGS := test_user_copy.sh
+
+include ../lib.mk
diff --git a/tools/testing/selftests/vm/Makefile b/tools/testing/selftests/vm/Makefile
index 077828c..a5ce953 100644
--- a/tools/testing/selftests/vm/Makefile
+++ b/tools/testing/selftests/vm/Makefile
@@ -1,6 +1,5 @@
 # Makefile for vm selftests
 
-CC = $(CROSS_COMPILE)gcc
 CFLAGS = -Wall
 BINARIES = hugepage-mmap hugepage-shm map_hugetlb thuge-gen hugetlbfstest
 BINARIES += transhuge-stress
@@ -9,8 +8,10 @@ all: $(BINARIES)
 %: %.c
 	$(CC) $(CFLAGS) -o $@ $^ -lrt
 
-run_tests: all
-	@/bin/sh ./run_vmtests || (echo "vmtests: [FAIL]"; exit 1)
+TEST_PROGS := run_vmtests
+TEST_FILES := $(BINARIES)
+
+include ../lib.mk
 
 clean:
 	$(RM) $(BINARIES)
diff --git a/tools/testing/selftests/vm/run_vmtests b/tools/testing/selftests/vm/run_vmtests
index c87b681..c87b681 100644..100755
--- a/tools/testing/selftests/vm/run_vmtests
+++ b/tools/testing/selftests/vm/run_vmtests
diff --git a/tools/testing/selftests/x86/.gitignore b/tools/testing/selftests/x86/.gitignore
new file mode 100644
index 0000000..15034fe
--- /dev/null
+++ b/tools/testing/selftests/x86/.gitignore
@@ -0,0 +1,2 @@
+*_32
+*_64
diff --git a/tools/testing/selftests/x86/Makefile b/tools/testing/selftests/x86/Makefile
new file mode 100644
index 0000000..f0a7918
--- /dev/null
+++ b/tools/testing/selftests/x86/Makefile
@@ -0,0 +1,48 @@
+.PHONY: all all_32 all_64 check_build32 clean run_tests
+
+TARGETS_C_BOTHBITS := sigreturn
+
+BINARIES_32 := $(TARGETS_C_BOTHBITS:%=%_32)
+BINARIES_64 := $(TARGETS_C_BOTHBITS:%=%_64)
+
+CFLAGS := -O2 -g -std=gnu99 -pthread -Wall
+
+UNAME_P := $(shell uname -p)
+
+# Always build 32-bit tests
+all: all_32
+
+# If we're on a 64-bit host, build 64-bit tests as well
+ifeq ($(shell uname -p),x86_64)
+all: all_64
+endif
+
+all_32: check_build32 $(BINARIES_32)
+
+all_64: $(BINARIES_64)
+
+clean:
+	$(RM) $(BINARIES_32) $(BINARIES_64)
+
+run_tests:
+	./run_x86_tests.sh
+
+$(TARGETS_C_BOTHBITS:%=%_32): %_32: %.c
+	$(CC) -m32 -o $@ $(CFLAGS) $(EXTRA_CFLAGS) $^ -lrt -ldl
+
+$(TARGETS_C_BOTHBITS:%=%_64): %_64: %.c
+	$(CC) -m64 -o $@ $(CFLAGS) $(EXTRA_CFLAGS) $^ -lrt -ldl
+
+check_build32:
+	@if ! $(CC) -m32 -o /dev/null trivial_32bit_program.c; then	\
+	  echo "Warning: you seem to have a broken 32-bit build" 2>&1; 	\
+	  echo "environment.  If you are using a Debian-like";		\
+	  echo " distribution, try:"; 					\
+	  echo "";							\
+	  echo "  apt-get install gcc-multilib libc6-i386 libc6-dev-i386"; \
+	  echo "";							\
+	  echo "If you are using a Fedora-like distribution, try:";	\
+	  echo "";							\
+	  echo "  yum install glibc-devel.*i686";			\
+	  exit 1;							\
+	fi
diff --git a/tools/testing/selftests/x86/run_x86_tests.sh b/tools/testing/selftests/x86/run_x86_tests.sh
new file mode 100644
index 0000000..3d3ec65
--- /dev/null
+++ b/tools/testing/selftests/x86/run_x86_tests.sh
@@ -0,0 +1,11 @@
+#!/bin/bash
+
+# This is deliberately minimal.  IMO kselftests should provide a standard
+# script here.
+./sigreturn_32 || exit 1
+
+if [[ "$uname -p" -eq "x86_64" ]]; then
+    ./sigreturn_64 || exit 1
+fi
+
+exit 0
diff --git a/tools/testing/selftests/x86/sigreturn.c b/tools/testing/selftests/x86/sigreturn.c
new file mode 100644
index 0000000..b5aa1ba
--- /dev/null
+++ b/tools/testing/selftests/x86/sigreturn.c
@@ -0,0 +1,684 @@
+/*
+ * sigreturn.c - tests for x86 sigreturn(2) and exit-to-userspace
+ * Copyright (c) 2014-2015 Andrew Lutomirski
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * This is a series of tests that exercises the sigreturn(2) syscall and
+ * the IRET / SYSRET paths in the kernel.
+ *
+ * For now, this focuses on the effects of unusual CS and SS values,
+ * and it has a bunch of tests to make sure that ESP/RSP is restored
+ * properly.
+ *
+ * The basic idea behind these tests is to raise(SIGUSR1) to create a
+ * sigcontext frame, plug in the values to be tested, and then return,
+ * which implicitly invokes sigreturn(2) and programs the user context
+ * as desired.
+ *
+ * For tests for which we expect sigreturn and the subsequent return to
+ * user mode to succeed, we return to a short trampoline that generates
+ * SIGTRAP so that the meat of the tests can be ordinary C code in a
+ * SIGTRAP handler.
+ *
+ * The inner workings of each test is documented below.
+ *
+ * Do not run on outdated, unpatched kernels at risk of nasty crashes.
+ */
+
+#define _GNU_SOURCE
+
+#include <sys/time.h>
+#include <time.h>
+#include <stdlib.h>
+#include <sys/syscall.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <string.h>
+#include <inttypes.h>
+#include <sys/mman.h>
+#include <sys/signal.h>
+#include <sys/ucontext.h>
+#include <asm/ldt.h>
+#include <err.h>
+#include <setjmp.h>
+#include <stddef.h>
+#include <stdbool.h>
+#include <sys/ptrace.h>
+#include <sys/user.h>
+
+/*
+ * In principle, this test can run on Linux emulation layers (e.g.
+ * Illumos "LX branded zones").  Solaris-based kernels reserve LDT
+ * entries 0-5 for their own internal purposes, so start our LDT
+ * allocations above that reservation.  (The tests don't pass on LX
+ * branded zones, but at least this lets them run.)
+ */
+#define LDT_OFFSET 6
+
+/* An aligned stack accessible through some of our segments. */
+static unsigned char stack16[65536] __attribute__((aligned(4096)));
+
+/*
+ * An aligned int3 instruction used as a trampoline.  Some of the tests
+ * want to fish out their ss values, so this trampoline copies ss to eax
+ * before the int3.
+ */
+asm (".pushsection .text\n\t"
+     ".type int3, @function\n\t"
+     ".align 4096\n\t"
+     "int3:\n\t"
+     "mov %ss,%eax\n\t"
+     "int3\n\t"
+     ".size int3, . - int3\n\t"
+     ".align 4096, 0xcc\n\t"
+     ".popsection");
+extern char int3[4096];
+
+/*
+ * At startup, we prepapre:
+ *
+ * - ldt_nonexistent_sel: An LDT entry that doesn't exist (all-zero
+ *   descriptor or out of bounds).
+ * - code16_sel: A 16-bit LDT code segment pointing to int3.
+ * - data16_sel: A 16-bit LDT data segment pointing to stack16.
+ * - npcode32_sel: A 32-bit not-present LDT code segment pointing to int3.
+ * - npdata32_sel: A 32-bit not-present LDT data segment pointing to stack16.
+ * - gdt_data16_idx: A 16-bit GDT data segment pointing to stack16.
+ * - gdt_npdata32_idx: A 32-bit not-present GDT data segment pointing to
+ *   stack16.
+ *
+ * For no particularly good reason, xyz_sel is a selector value with the
+ * RPL and LDT bits filled in, whereas xyz_idx is just an index into the
+ * descriptor table.  These variables will be zero if their respective
+ * segments could not be allocated.
+ */
+static unsigned short ldt_nonexistent_sel;
+static unsigned short code16_sel, data16_sel, npcode32_sel, npdata32_sel;
+
+static unsigned short gdt_data16_idx, gdt_npdata32_idx;
+
+static unsigned short GDT3(int idx)
+{
+	return (idx << 3) | 3;
+}
+
+static unsigned short LDT3(int idx)
+{
+	return (idx << 3) | 7;
+}
+
+/* Our sigaltstack scratch space. */
+static char altstack_data[SIGSTKSZ];
+
+static void sethandler(int sig, void (*handler)(int, siginfo_t *, void *),
+		       int flags)
+{
+	struct sigaction sa;
+	memset(&sa, 0, sizeof(sa));
+	sa.sa_sigaction = handler;
+	sa.sa_flags = SA_SIGINFO | flags;
+	sigemptyset(&sa.sa_mask);
+	if (sigaction(sig, &sa, 0))
+		err(1, "sigaction");
+}
+
+static void clearhandler(int sig)
+{
+	struct sigaction sa;
+	memset(&sa, 0, sizeof(sa));
+	sa.sa_handler = SIG_DFL;
+	sigemptyset(&sa.sa_mask);
+	if (sigaction(sig, &sa, 0))
+		err(1, "sigaction");
+}
+
+static void add_ldt(const struct user_desc *desc, unsigned short *var,
+		    const char *name)
+{
+	if (syscall(SYS_modify_ldt, 1, desc, sizeof(*desc)) == 0) {
+		*var = LDT3(desc->entry_number);
+	} else {
+		printf("[NOTE]\tFailed to create %s segment\n", name);
+		*var = 0;
+	}
+}
+
+static void setup_ldt(void)
+{
+	if ((unsigned long)stack16 > (1ULL << 32) - sizeof(stack16))
+		errx(1, "stack16 is too high\n");
+	if ((unsigned long)int3 > (1ULL << 32) - sizeof(int3))
+		errx(1, "int3 is too high\n");
+
+	ldt_nonexistent_sel = LDT3(LDT_OFFSET + 2);
+
+	const struct user_desc code16_desc = {
+		.entry_number    = LDT_OFFSET + 0,
+		.base_addr       = (unsigned long)int3,
+		.limit           = 4095,
+		.seg_32bit       = 0,
+		.contents        = 2, /* Code, not conforming */
+		.read_exec_only  = 0,
+		.limit_in_pages  = 0,
+		.seg_not_present = 0,
+		.useable         = 0
+	};
+	add_ldt(&code16_desc, &code16_sel, "code16");
+
+	const struct user_desc data16_desc = {
+		.entry_number    = LDT_OFFSET + 1,
+		.base_addr       = (unsigned long)stack16,
+		.limit           = 0xffff,
+		.seg_32bit       = 0,
+		.contents        = 0, /* Data, grow-up */
+		.read_exec_only  = 0,
+		.limit_in_pages  = 0,
+		.seg_not_present = 0,
+		.useable         = 0
+	};
+	add_ldt(&data16_desc, &data16_sel, "data16");
+
+	const struct user_desc npcode32_desc = {
+		.entry_number    = LDT_OFFSET + 3,
+		.base_addr       = (unsigned long)int3,
+		.limit           = 4095,
+		.seg_32bit       = 1,
+		.contents        = 2, /* Code, not conforming */
+		.read_exec_only  = 0,
+		.limit_in_pages  = 0,
+		.seg_not_present = 1,
+		.useable         = 0
+	};
+	add_ldt(&npcode32_desc, &npcode32_sel, "npcode32");
+
+	const struct user_desc npdata32_desc = {
+		.entry_number    = LDT_OFFSET + 4,
+		.base_addr       = (unsigned long)stack16,
+		.limit           = 0xffff,
+		.seg_32bit       = 1,
+		.contents        = 0, /* Data, grow-up */
+		.read_exec_only  = 0,
+		.limit_in_pages  = 0,
+		.seg_not_present = 1,
+		.useable         = 0
+	};
+	add_ldt(&npdata32_desc, &npdata32_sel, "npdata32");
+
+	struct user_desc gdt_data16_desc = {
+		.entry_number    = -1,
+		.base_addr       = (unsigned long)stack16,
+		.limit           = 0xffff,
+		.seg_32bit       = 0,
+		.contents        = 0, /* Data, grow-up */
+		.read_exec_only  = 0,
+		.limit_in_pages  = 0,
+		.seg_not_present = 0,
+		.useable         = 0
+	};
+
+	if (syscall(SYS_set_thread_area, &gdt_data16_desc) == 0) {
+		/*
+		 * This probably indicates vulnerability to CVE-2014-8133.
+		 * Merely getting here isn't definitive, though, and we'll
+		 * diagnose the problem for real later on.
+		 */
+		printf("[WARN]\tset_thread_area allocated data16 at index %d\n",
+		       gdt_data16_desc.entry_number);
+		gdt_data16_idx = gdt_data16_desc.entry_number;
+	} else {
+		printf("[OK]\tset_thread_area refused 16-bit data\n");
+	}
+
+	struct user_desc gdt_npdata32_desc = {
+		.entry_number    = -1,
+		.base_addr       = (unsigned long)stack16,
+		.limit           = 0xffff,
+		.seg_32bit       = 1,
+		.contents        = 0, /* Data, grow-up */
+		.read_exec_only  = 0,
+		.limit_in_pages  = 0,
+		.seg_not_present = 1,
+		.useable         = 0
+	};
+
+	if (syscall(SYS_set_thread_area, &gdt_npdata32_desc) == 0) {
+		/*
+		 * As a hardening measure, newer kernels don't allow this.
+		 */
+		printf("[WARN]\tset_thread_area allocated npdata32 at index %d\n",
+		       gdt_npdata32_desc.entry_number);
+		gdt_npdata32_idx = gdt_npdata32_desc.entry_number;
+	} else {
+		printf("[OK]\tset_thread_area refused 16-bit data\n");
+	}
+}
+
+/* State used by our signal handlers. */
+static gregset_t initial_regs, requested_regs, resulting_regs;
+
+/* Instructions for the SIGUSR1 handler. */
+static volatile unsigned short sig_cs, sig_ss;
+static volatile sig_atomic_t sig_trapped, sig_err, sig_trapno;
+
+/* Abstractions for some 32-bit vs 64-bit differences. */
+#ifdef __x86_64__
+# define REG_IP REG_RIP
+# define REG_SP REG_RSP
+# define REG_AX REG_RAX
+
+struct selectors {
+	unsigned short cs, gs, fs, ss;
+};
+
+static unsigned short *ssptr(ucontext_t *ctx)
+{
+	struct selectors *sels = (void *)&ctx->uc_mcontext.gregs[REG_CSGSFS];
+	return &sels->ss;
+}
+
+static unsigned short *csptr(ucontext_t *ctx)
+{
+	struct selectors *sels = (void *)&ctx->uc_mcontext.gregs[REG_CSGSFS];
+	return &sels->cs;
+}
+#else
+# define REG_IP REG_EIP
+# define REG_SP REG_ESP
+# define REG_AX REG_EAX
+
+static greg_t *ssptr(ucontext_t *ctx)
+{
+	return &ctx->uc_mcontext.gregs[REG_SS];
+}
+
+static greg_t *csptr(ucontext_t *ctx)
+{
+	return &ctx->uc_mcontext.gregs[REG_CS];
+}
+#endif
+
+/* Number of errors in the current test case. */
+static volatile sig_atomic_t nerrs;
+
+/*
+ * SIGUSR1 handler.  Sets CS and SS as requested and points IP to the
+ * int3 trampoline.  Sets SP to a large known value so that we can see
+ * whether the value round-trips back to user mode correctly.
+ */
+static void sigusr1(int sig, siginfo_t *info, void *ctx_void)
+{
+	ucontext_t *ctx = (ucontext_t*)ctx_void;
+
+	memcpy(&initial_regs, &ctx->uc_mcontext.gregs, sizeof(gregset_t));
+
+	*csptr(ctx) = sig_cs;
+	*ssptr(ctx) = sig_ss;
+
+	ctx->uc_mcontext.gregs[REG_IP] =
+		sig_cs == code16_sel ? 0 : (unsigned long)&int3;
+	ctx->uc_mcontext.gregs[REG_SP] = (unsigned long)0x8badf00d5aadc0deULL;
+	ctx->uc_mcontext.gregs[REG_AX] = 0;
+
+	memcpy(&requested_regs, &ctx->uc_mcontext.gregs, sizeof(gregset_t));
+	requested_regs[REG_AX] = *ssptr(ctx);	/* The asm code does this. */
+
+	return;
+}
+
+/*
+ * Called after a successful sigreturn.  Restores our state so that
+ * the original raise(SIGUSR1) returns.
+ */
+static void sigtrap(int sig, siginfo_t *info, void *ctx_void)
+{
+	ucontext_t *ctx = (ucontext_t*)ctx_void;
+
+	sig_err = ctx->uc_mcontext.gregs[REG_ERR];
+	sig_trapno = ctx->uc_mcontext.gregs[REG_TRAPNO];
+
+	unsigned short ss;
+	asm ("mov %%ss,%0" : "=r" (ss));
+
+	greg_t asm_ss = ctx->uc_mcontext.gregs[REG_AX];
+	if (asm_ss != sig_ss && sig == SIGTRAP) {
+		/* Sanity check failure. */
+		printf("[FAIL]\tSIGTRAP: ss = %hx, frame ss = %hx, ax = %llx\n",
+		       ss, *ssptr(ctx), (unsigned long long)asm_ss);
+		nerrs++;
+	}
+
+	memcpy(&resulting_regs, &ctx->uc_mcontext.gregs, sizeof(gregset_t));
+	memcpy(&ctx->uc_mcontext.gregs, &initial_regs, sizeof(gregset_t));
+
+	sig_trapped = sig;
+}
+
+/*
+ * Checks a given selector for its code bitness or returns -1 if it's not
+ * a usable code segment selector.
+ */
+int cs_bitness(unsigned short cs)
+{
+	uint32_t valid = 0, ar;
+	asm ("lar %[cs], %[ar]\n\t"
+	     "jnz 1f\n\t"
+	     "mov $1, %[valid]\n\t"
+	     "1:"
+	     : [ar] "=r" (ar), [valid] "+rm" (valid)
+	     : [cs] "r" (cs));
+
+	if (!valid)
+		return -1;
+
+	bool db = (ar & (1 << 22));
+	bool l = (ar & (1 << 21));
+
+	if (!(ar & (1<<11)))
+	    return -1;	/* Not code. */
+
+	if (l && !db)
+		return 64;
+	else if (!l && db)
+		return 32;
+	else if (!l && !db)
+		return 16;
+	else
+		return -1;	/* Unknown bitness. */
+}
+
+/* Finds a usable code segment of the requested bitness. */
+int find_cs(int bitness)
+{
+	unsigned short my_cs;
+
+	asm ("mov %%cs,%0" :  "=r" (my_cs));
+
+	if (cs_bitness(my_cs) == bitness)
+		return my_cs;
+	if (cs_bitness(my_cs + (2 << 3)) == bitness)
+		return my_cs + (2 << 3);
+	if (my_cs > (2<<3) && cs_bitness(my_cs - (2 << 3)) == bitness)
+	    return my_cs - (2 << 3);
+	if (cs_bitness(code16_sel) == bitness)
+		return code16_sel;
+
+	printf("[WARN]\tCould not find %d-bit CS\n", bitness);
+	return -1;
+}
+
+static int test_valid_sigreturn(int cs_bits, bool use_16bit_ss, int force_ss)
+{
+	int cs = find_cs(cs_bits);
+	if (cs == -1) {
+		printf("[SKIP]\tCode segment unavailable for %d-bit CS, %d-bit SS\n",
+		       cs_bits, use_16bit_ss ? 16 : 32);
+		return 0;
+	}
+
+	if (force_ss != -1) {
+		sig_ss = force_ss;
+	} else {
+		if (use_16bit_ss) {
+			if (!data16_sel) {
+				printf("[SKIP]\tData segment unavailable for %d-bit CS, 16-bit SS\n",
+				       cs_bits);
+				return 0;
+			}
+			sig_ss = data16_sel;
+		} else {
+			asm volatile ("mov %%ss,%0" : "=r" (sig_ss));
+		}
+	}
+
+	sig_cs = cs;
+
+	printf("[RUN]\tValid sigreturn: %d-bit CS (%hx), %d-bit SS (%hx%s)\n",
+	       cs_bits, sig_cs, use_16bit_ss ? 16 : 32, sig_ss,
+	       (sig_ss & 4) ? "" : ", GDT");
+
+	raise(SIGUSR1);
+
+	nerrs = 0;
+
+	/*
+	 * Check that each register had an acceptable value when the
+	 * int3 trampoline was invoked.
+	 */
+	for (int i = 0; i < NGREG; i++) {
+		greg_t req = requested_regs[i], res = resulting_regs[i];
+		if (i == REG_TRAPNO || i == REG_IP)
+			continue;	/* don't care */
+		if (i == REG_SP) {
+			printf("\tSP: %llx -> %llx\n", (unsigned long long)req,
+			       (unsigned long long)res);
+
+			/*
+			 * In many circumstances, the high 32 bits of rsp
+			 * are zeroed.  For example, we could be a real
+			 * 32-bit program, or we could hit any of a number
+			 * of poorly-documented IRET or segmented ESP
+			 * oddities.  If this happens, it's okay.
+			 */
+			if (res == (req & 0xFFFFFFFF))
+				continue;  /* OK; not expected to work */
+		}
+
+		bool ignore_reg = false;
+#if __i386__
+		if (i == REG_UESP)
+			ignore_reg = true;
+#else
+		if (i == REG_CSGSFS) {
+			struct selectors *req_sels =
+				(void *)&requested_regs[REG_CSGSFS];
+			struct selectors *res_sels =
+				(void *)&resulting_regs[REG_CSGSFS];
+			if (req_sels->cs != res_sels->cs) {
+				printf("[FAIL]\tCS mismatch: requested 0x%hx; got 0x%hx\n",
+				       req_sels->cs, res_sels->cs);
+				nerrs++;
+			}
+
+			if (req_sels->ss != res_sels->ss) {
+				printf("[FAIL]\tSS mismatch: requested 0x%hx; got 0x%hx\n",
+				       req_sels->ss, res_sels->ss);
+				nerrs++;
+			}
+
+			continue;
+		}
+#endif
+
+		/* Sanity check on the kernel */
+		if (i == REG_AX && requested_regs[i] != resulting_regs[i]) {
+			printf("[FAIL]\tAX (saved SP) mismatch: requested 0x%llx; got 0x%llx\n",
+			       (unsigned long long)requested_regs[i],
+			       (unsigned long long)resulting_regs[i]);
+			nerrs++;
+			continue;
+		}
+
+		if (requested_regs[i] != resulting_regs[i] && !ignore_reg) {
+			/*
+			 * SP is particularly interesting here.  The
+			 * usual cause of failures is that we hit the
+			 * nasty IRET case of returning to a 16-bit SS,
+			 * in which case bits 16:31 of the *kernel*
+			 * stack pointer persist in ESP.
+			 */
+			printf("[FAIL]\tReg %d mismatch: requested 0x%llx; got 0x%llx\n",
+			       i, (unsigned long long)requested_regs[i],
+			       (unsigned long long)resulting_regs[i]);
+			nerrs++;
+		}
+	}
+
+	if (nerrs == 0)
+		printf("[OK]\tall registers okay\n");
+
+	return nerrs;
+}
+
+static int test_bad_iret(int cs_bits, unsigned short ss, int force_cs)
+{
+	int cs = force_cs == -1 ? find_cs(cs_bits) : force_cs;
+	if (cs == -1)
+		return 0;
+
+	sig_cs = cs;
+	sig_ss = ss;
+
+	printf("[RUN]\t%d-bit CS (%hx), bogus SS (%hx)\n",
+	       cs_bits, sig_cs, sig_ss);
+
+	sig_trapped = 0;
+	raise(SIGUSR1);
+	if (sig_trapped) {
+		char errdesc[32] = "";
+		if (sig_err) {
+			const char *src = (sig_err & 1) ? " EXT" : "";
+			const char *table;
+			if ((sig_err & 0x6) == 0x0)
+				table = "GDT";
+			else if ((sig_err & 0x6) == 0x4)
+				table = "LDT";
+			else if ((sig_err & 0x6) == 0x2)
+				table = "IDT";
+			else
+				table = "???";
+
+			sprintf(errdesc, "%s%s index %d, ",
+				table, src, sig_err >> 3);
+		}
+
+		char trapname[32];
+		if (sig_trapno == 13)
+			strcpy(trapname, "GP");
+		else if (sig_trapno == 11)
+			strcpy(trapname, "NP");
+		else if (sig_trapno == 12)
+			strcpy(trapname, "SS");
+		else if (sig_trapno == 32)
+			strcpy(trapname, "IRET");  /* X86_TRAP_IRET */
+		else
+			sprintf(trapname, "%d", sig_trapno);
+
+		printf("[OK]\tGot #%s(0x%lx) (i.e. %s%s)\n",
+		       trapname, (unsigned long)sig_err,
+		       errdesc, strsignal(sig_trapped));
+		return 0;
+	} else {
+		printf("[FAIL]\tDid not get SIGSEGV\n");
+		return 1;
+	}
+}
+
+int main()
+{
+	int total_nerrs = 0;
+	unsigned short my_cs, my_ss;
+
+	asm volatile ("mov %%cs,%0" : "=r" (my_cs));
+	asm volatile ("mov %%ss,%0" : "=r" (my_ss));
+	setup_ldt();
+
+	stack_t stack = {
+		.ss_sp = altstack_data,
+		.ss_size = SIGSTKSZ,
+	};
+	if (sigaltstack(&stack, NULL) != 0)
+		err(1, "sigaltstack");
+
+	sethandler(SIGUSR1, sigusr1, 0);
+	sethandler(SIGTRAP, sigtrap, SA_ONSTACK);
+
+	/* Easy cases: return to a 32-bit SS in each possible CS bitness. */
+	total_nerrs += test_valid_sigreturn(64, false, -1);
+	total_nerrs += test_valid_sigreturn(32, false, -1);
+	total_nerrs += test_valid_sigreturn(16, false, -1);
+
+	/*
+	 * Test easy espfix cases: return to a 16-bit LDT SS in each possible
+	 * CS bitness.  NB: with a long mode CS, the SS bitness is irrelevant.
+	 *
+	 * This catches the original missing-espfix-on-64-bit-kernels issue
+	 * as well as CVE-2014-8134.
+	 */
+	total_nerrs += test_valid_sigreturn(64, true, -1);
+	total_nerrs += test_valid_sigreturn(32, true, -1);
+	total_nerrs += test_valid_sigreturn(16, true, -1);
+
+	if (gdt_data16_idx) {
+		/*
+		 * For performance reasons, Linux skips espfix if SS points
+		 * to the GDT.  If we were able to allocate a 16-bit SS in
+		 * the GDT, see if it leaks parts of the kernel stack pointer.
+		 *
+		 * This tests for CVE-2014-8133.
+		 */
+		total_nerrs += test_valid_sigreturn(64, true,
+						    GDT3(gdt_data16_idx));
+		total_nerrs += test_valid_sigreturn(32, true,
+						    GDT3(gdt_data16_idx));
+		total_nerrs += test_valid_sigreturn(16, true,
+						    GDT3(gdt_data16_idx));
+	}
+
+	/*
+	 * We're done testing valid sigreturn cases.  Now we test states
+	 * for which sigreturn itself will succeed but the subsequent
+	 * entry to user mode will fail.
+	 *
+	 * Depending on the failure mode and the kernel bitness, these
+	 * entry failures can generate SIGSEGV, SIGBUS, or SIGILL.
+	 */
+	clearhandler(SIGTRAP);
+	sethandler(SIGSEGV, sigtrap, SA_ONSTACK);
+	sethandler(SIGBUS, sigtrap, SA_ONSTACK);
+	sethandler(SIGILL, sigtrap, SA_ONSTACK);  /* 32-bit kernels do this */
+
+	/* Easy failures: invalid SS, resulting in #GP(0) */
+	test_bad_iret(64, ldt_nonexistent_sel, -1);
+	test_bad_iret(32, ldt_nonexistent_sel, -1);
+	test_bad_iret(16, ldt_nonexistent_sel, -1);
+
+	/* These fail because SS isn't a data segment, resulting in #GP(SS) */
+	test_bad_iret(64, my_cs, -1);
+	test_bad_iret(32, my_cs, -1);
+	test_bad_iret(16, my_cs, -1);
+
+	/* Try to return to a not-present code segment, triggering #NP(SS). */
+	test_bad_iret(32, my_ss, npcode32_sel);
+
+	/*
+	 * Try to return to a not-present but otherwise valid data segment.
+	 * This will cause IRET to fail with #SS on the espfix stack.  This
+	 * exercises CVE-2014-9322.
+	 *
+	 * Note that, if espfix is enabled, 64-bit Linux will lose track
+	 * of the actual cause of failure and report #GP(0) instead.
+	 * This would be very difficult for Linux to avoid, because
+	 * espfix64 causes IRET failures to be promoted to #DF, so the
+	 * original exception frame is never pushed onto the stack.
+	 */
+	test_bad_iret(32, npdata32_sel, -1);
+
+	/*
+	 * Try to return to a not-present but otherwise valid data
+	 * segment without invoking espfix.  Newer kernels don't allow
+	 * this to happen in the first place.  On older kernels, though,
+	 * this can trigger CVE-2014-9322.
+	 */
+	if (gdt_npdata32_idx)
+		test_bad_iret(32, GDT3(gdt_npdata32_idx), -1);
+
+	return total_nerrs ? 1 : 0;
+}
diff --git a/tools/testing/selftests/x86/trivial_32bit_program.c b/tools/testing/selftests/x86/trivial_32bit_program.c
new file mode 100644
index 0000000..2e231be
--- /dev/null
+++ b/tools/testing/selftests/x86/trivial_32bit_program.c
@@ -0,0 +1,14 @@
+/*
+ * Trivial program to check that we have a valid 32-bit build environment.
+ * Copyright (c) 2015 Andy Lutomirski
+ * GPL v2
+ */
+
+#include <stdio.h>
+
+int main()
+{
+	printf("\n");
+
+	return 0;
+}
diff --git a/tools/thermal/tmon/.gitignore b/tools/thermal/tmon/.gitignore
new file mode 100644
index 0000000..06e96be
--- /dev/null
+++ b/tools/thermal/tmon/.gitignore
@@ -0,0 +1 @@
+/tmon
diff --git a/tools/thermal/tmon/Makefile b/tools/thermal/tmon/Makefile
index e775adc..0788621 100644
--- a/tools/thermal/tmon/Makefile
+++ b/tools/thermal/tmon/Makefile
@@ -2,8 +2,8 @@ VERSION = 1.0
 
 BINDIR=usr/bin
 WARNFLAGS=-Wall -Wshadow -W -Wformat -Wimplicit-function-declaration -Wimplicit-int
-CFLAGS= -O1 ${WARNFLAGS} -fstack-protector
-CC=gcc
+CFLAGS+= -O1 ${WARNFLAGS} -fstack-protector
+CC=$(CROSS_COMPILE)gcc
 
 CFLAGS+=-D VERSION=\"$(VERSION)\"
 LDFLAGS+=
@@ -16,12 +16,21 @@ INSTALL_CONFIGFILE=install -m 644 -p
 CONFIG_FILE=
 CONFIG_PATH=
 
+# Static builds might require -ltinfo, for instance
+ifneq ($(findstring -static, $(LDFLAGS)),)
+STATIC := --static
+endif
+
+TMON_LIBS=-lm -lpthread
+TMON_LIBS += $(shell pkg-config --libs $(STATIC) panelw ncursesw 2> /dev/null || \
+		     pkg-config --libs $(STATIC) panel ncurses 2> /dev/null || \
+		     echo -lpanel -lncurses)
 
 OBJS = tmon.o tui.o sysfs.o pid.o
 OBJS +=
 
 tmon: $(OBJS) Makefile tmon.h
-	$(CC) ${CFLAGS} $(LDFLAGS) $(OBJS)  -o $(TARGET) -lm -lpanel -lncursesw -ltinfo -lpthread
+	$(CC) $(CFLAGS) $(LDFLAGS) $(OBJS)  -o $(TARGET) $(TMON_LIBS)
 
 valgrind: tmon
 	 sudo valgrind -v --track-origins=yes --tool=memcheck --leak-check=yes --show-reachable=yes --num-callers=20 --track-fds=yes ./$(TARGET)  1> /dev/null
diff --git a/tools/thermal/tmon/tmon.8 b/tools/thermal/tmon/tmon.8
index 0be727c..02d5179 100644
--- a/tools/thermal/tmon/tmon.8
+++ b/tools/thermal/tmon/tmon.8
@@ -55,6 +55,8 @@ The \fB-l --log\fP option write data to /var/tmp/tmon.log
 .PP
 The \fB-t --time-interval\fP option sets the polling interval in seconds
 .PP
+The \fB-T --target-temp\fP option sets the initial target temperature
+.PP
 The \fB-v --version\fP option shows the version of \fBtmon \fP
 .PP
 The \fB-z --zone\fP option sets the target therma zone instance to be controlled
diff --git a/tools/thermal/tmon/tmon.c b/tools/thermal/tmon/tmon.c
index 09b7c32..9aa1965 100644
--- a/tools/thermal/tmon/tmon.c
+++ b/tools/thermal/tmon/tmon.c
@@ -64,6 +64,7 @@ void usage()
 	printf("  -h, --help            show this help message\n");
 	printf("  -l, --log             log data to /var/tmp/tmon.log\n");
 	printf("  -t, --time-interval   sampling time interval, > 1 sec.\n");
+	printf("  -T, --target-temp     initial target temperature\n");
 	printf("  -v, --version         show version\n");
 	printf("  -z, --zone            target thermal zone id\n");
 
@@ -219,6 +220,7 @@ static struct option opts[] = {
 	{ "control", 1, NULL, 'c' },
 	{ "daemon", 0, NULL, 'd' },
 	{ "time-interval", 1, NULL, 't' },
+	{ "target-temp", 1, NULL, 'T' },
 	{ "log", 0, NULL, 'l' },
 	{ "help", 0, NULL, 'h' },
 	{ "version", 0, NULL, 'v' },
@@ -231,7 +233,7 @@ int main(int argc, char **argv)
 {
 	int err = 0;
 	int id2 = 0, c;
-	double yk = 0.0; /* controller output */
+	double yk = 0.0, temp; /* controller output */
 	int target_tz_index;
 
 	if (geteuid() != 0) {
@@ -239,7 +241,7 @@ int main(int argc, char **argv)
 		exit(EXIT_FAILURE);
 	}
 
-	while ((c = getopt_long(argc, argv, "c:dlht:vgz:", opts, &id2)) != -1) {
+	while ((c = getopt_long(argc, argv, "c:dlht:T:vgz:", opts, &id2)) != -1) {
 		switch (c) {
 		case 'c':
 			no_control = 0;
@@ -254,6 +256,14 @@ int main(int argc, char **argv)
 			if (ticktime < 1)
 				ticktime = 1;
 			break;
+		case 'T':
+			temp = strtod(optarg, NULL);
+			if (temp < 0) {
+				fprintf(stderr, "error: temperature must be positive\n");
+				return 1;
+			}
+			target_temp_user = temp;
+			break;
 		case 'l':
 			printf("Logging data to /var/tmp/tmon.log\n");
 			logging = 1;
diff --git a/tools/thermal/tmon/tui.c b/tools/thermal/tmon/tui.c
index 89f8ef0..b5d1c6b 100644
--- a/tools/thermal/tmon/tui.c
+++ b/tools/thermal/tmon/tui.c
@@ -30,6 +30,18 @@
 
 #include "tmon.h"
 
+#define min(x, y) ({				\
+	typeof(x) _min1 = (x);			\
+	typeof(y) _min2 = (y);			\
+	(void) (&_min1 == &_min2);		\
+	_min1 < _min2 ? _min1 : _min2; })
+
+#define max(x, y) ({				\
+	typeof(x) _max1 = (x);			\
+	typeof(y) _max2 = (y);			\
+	(void) (&_max1 == &_max2);		\
+	_max1 > _max2 ? _max1 : _max2; })
+
 static PANEL *data_panel;
 static PANEL *dialogue_panel;
 static PANEL *top;
@@ -98,6 +110,18 @@ void write_status_bar(int x, char *line)
 	wrefresh(status_bar_window);
 }
 
+/* wrap at 5 */
+#define DIAG_DEV_ROWS  5
+/*
+ * list cooling devices + "set temp" entry; wraps after 5 rows, if they fit
+ */
+static int diag_dev_rows(void)
+{
+	int entries = ptdata.nr_cooling_dev + 1;
+	int rows = max(DIAG_DEV_ROWS, (entries + 1) / 2);
+	return min(rows, entries);
+}
+
 void setup_windows(void)
 {
 	int y_begin = 1;
@@ -122,7 +146,7 @@ void setup_windows(void)
 	 * dialogue window is a pop-up, when needed it lays on top of cdev win
 	 */
 
-	dialogue_window = subwin(stdscr, ptdata.nr_cooling_dev+5, maxx-50,
+	dialogue_window = subwin(stdscr, diag_dev_rows() + 5, maxx-50,
 				DIAG_Y, DIAG_X);
 
 	thermal_data_window = subwin(stdscr, ptdata.nr_tz_sensor *
@@ -258,21 +282,26 @@ void show_cooling_device(void)
 }
 
 const char DIAG_TITLE[] = "[ TUNABLES ]";
-#define DIAG_DEV_ROWS  5
 void show_dialogue(void)
 {
 	int j, x = 0, y = 0;
+	int rows, cols;
 	WINDOW *w = dialogue_window;
 
 	if (tui_disabled || !w)
 		return;
 
+	getmaxyx(w, rows, cols);
+
+	/* Silence compiler 'unused' warnings */
+	(void)cols;
+
 	werase(w);
 	box(w, 0, 0);
 	mvwprintw(w, 0, maxx/4, DIAG_TITLE);
 	/* list all the available tunables */
 	for (j = 0; j <= ptdata.nr_cooling_dev; j++) {
-		y = j % DIAG_DEV_ROWS;
+		y = j % diag_dev_rows();
 		if (y == 0 && j != 0)
 			x += 20;
 		if (j == ptdata.nr_cooling_dev)
@@ -283,12 +312,10 @@ void show_dialogue(void)
 				ptdata.cdi[j].type, ptdata.cdi[j].instance);
 	}
 	wattron(w, A_BOLD);
-	mvwprintw(w, DIAG_DEV_ROWS+1, 1, "Enter Choice [A-Z]?");
+	mvwprintw(w, diag_dev_rows()+1, 1, "Enter Choice [A-Z]?");
 	wattroff(w, A_BOLD);
-	/* y size of dialogue win is nr cdev + 5, so print legend
-	 * at the bottom line
-	 */
-	mvwprintw(w, ptdata.nr_cooling_dev+3, 1,
+	/* print legend at the bottom line */
+	mvwprintw(w, rows - 2, 1,
 		"Legend: A=Active, P=Passive, C=Critical");
 
 	wrefresh(dialogue_window);
@@ -437,7 +464,7 @@ static void handle_input_choice(int ch)
 			snprintf(buf, sizeof(buf), "New Value for %.10s-%2d: ",
 				ptdata.cdi[cdev_id].type,
 				ptdata.cdi[cdev_id].instance);
-		write_dialogue_win(buf, DIAG_DEV_ROWS+2, 2);
+		write_dialogue_win(buf, diag_dev_rows() + 2, 2);
 		handle_input_val(cdev_id);
 	} else {
 		snprintf(buf, sizeof(buf), "Invalid selection %d", ch);
diff --git a/virt/kvm/arm/arch_timer.c b/virt/kvm/arm/arch_timer.c
index 6e54f35..98c95f2 100644
--- a/virt/kvm/arm/arch_timer.c
+++ b/virt/kvm/arm/arch_timer.c
@@ -85,13 +85,22 @@ static irqreturn_t kvm_arch_timer_handler(int irq, void *dev_id)
 	return IRQ_HANDLED;
 }
 
+/*
+ * Work function for handling the backup timer that we schedule when a vcpu is
+ * no longer running, but had a timer programmed to fire in the future.
+ */
 static void kvm_timer_inject_irq_work(struct work_struct *work)
 {
 	struct kvm_vcpu *vcpu;
 
 	vcpu = container_of(work, struct kvm_vcpu, arch.timer_cpu.expired);
 	vcpu->arch.timer_cpu.armed = false;
-	kvm_timer_inject_irq(vcpu);
+
+	/*
+	 * If the vcpu is blocked we want to wake it up so that it will see
+	 * the timer has expired when entering the guest.
+	 */
+	kvm_vcpu_kick(vcpu);
 }
 
 static enum hrtimer_restart kvm_timer_expire(struct hrtimer *hrt)
@@ -102,6 +111,21 @@ static enum hrtimer_restart kvm_timer_expire(struct hrtimer *hrt)
 	return HRTIMER_NORESTART;
 }
 
+bool kvm_timer_should_fire(struct kvm_vcpu *vcpu)
+{
+	struct arch_timer_cpu *timer = &vcpu->arch.timer_cpu;
+	cycle_t cval, now;
+
+	if ((timer->cntv_ctl & ARCH_TIMER_CTRL_IT_MASK) ||
+		!(timer->cntv_ctl & ARCH_TIMER_CTRL_ENABLE))
+		return false;
+
+	cval = timer->cntv_cval;
+	now = kvm_phys_timer_read() - vcpu->kvm->arch.timer.cntvoff;
+
+	return cval <= now;
+}
+
 /**
  * kvm_timer_flush_hwstate - prepare to move the virt timer to the cpu
  * @vcpu: The vcpu pointer
@@ -119,6 +143,13 @@ void kvm_timer_flush_hwstate(struct kvm_vcpu *vcpu)
 	 * populate the CPU timer again.
 	 */
 	timer_disarm(timer);
+
+	/*
+	 * If the timer expired while we were not scheduled, now is the time
+	 * to inject it.
+	 */
+	if (kvm_timer_should_fire(vcpu))
+		kvm_timer_inject_irq(vcpu);
 }
 
 /**
@@ -134,16 +165,9 @@ void kvm_timer_sync_hwstate(struct kvm_vcpu *vcpu)
 	cycle_t cval, now;
 	u64 ns;
 
-	if ((timer->cntv_ctl & ARCH_TIMER_CTRL_IT_MASK) ||
-		!(timer->cntv_ctl & ARCH_TIMER_CTRL_ENABLE))
-		return;
-
-	cval = timer->cntv_cval;
-	now = kvm_phys_timer_read() - vcpu->kvm->arch.timer.cntvoff;
-
 	BUG_ON(timer_is_armed(timer));
 
-	if (cval <= now) {
+	if (kvm_timer_should_fire(vcpu)) {
 		/*
 		 * Timer has already expired while we were not
 		 * looking. Inject the interrupt and carry on.
@@ -152,6 +176,9 @@ void kvm_timer_sync_hwstate(struct kvm_vcpu *vcpu)
 		return;
 	}
 
+	cval = timer->cntv_cval;
+	now = kvm_phys_timer_read() - vcpu->kvm->arch.timer.cntvoff;
+
 	ns = cyclecounter_cyc2ns(timecounter->cc, cval - now, timecounter->mask,
 				 &timecounter->frac);
 	timer_arm(timer, ns);
diff --git a/virt/kvm/arm/vgic-v2-emul.c b/virt/kvm/arm/vgic-v2-emul.c
index 19c6210..1390797 100644
--- a/virt/kvm/arm/vgic-v2-emul.c
+++ b/virt/kvm/arm/vgic-v2-emul.c
@@ -107,6 +107,22 @@ static bool handle_mmio_clear_pending_reg(struct kvm_vcpu *vcpu,
 					     vcpu->vcpu_id);
 }
 
+static bool handle_mmio_set_active_reg(struct kvm_vcpu *vcpu,
+				       struct kvm_exit_mmio *mmio,
+				       phys_addr_t offset)
+{
+	return vgic_handle_set_active_reg(vcpu->kvm, mmio, offset,
+					  vcpu->vcpu_id);
+}
+
+static bool handle_mmio_clear_active_reg(struct kvm_vcpu *vcpu,
+					 struct kvm_exit_mmio *mmio,
+					 phys_addr_t offset)
+{
+	return vgic_handle_clear_active_reg(vcpu->kvm, mmio, offset,
+					    vcpu->vcpu_id);
+}
+
 static bool handle_mmio_priority_reg(struct kvm_vcpu *vcpu,
 				     struct kvm_exit_mmio *mmio,
 				     phys_addr_t offset)
@@ -303,7 +319,7 @@ static bool handle_mmio_sgi_clear(struct kvm_vcpu *vcpu,
 		return write_set_clear_sgi_pend_reg(vcpu, mmio, offset, false);
 }
 
-static const struct kvm_mmio_range vgic_dist_ranges[] = {
+static const struct vgic_io_range vgic_dist_ranges[] = {
 	{
 		.base		= GIC_DIST_CTRL,
 		.len		= 12,
@@ -344,13 +360,13 @@ static const struct kvm_mmio_range vgic_dist_ranges[] = {
 		.base		= GIC_DIST_ACTIVE_SET,
 		.len		= VGIC_MAX_IRQS / 8,
 		.bits_per_irq	= 1,
-		.handle_mmio	= handle_mmio_raz_wi,
+		.handle_mmio	= handle_mmio_set_active_reg,
 	},
 	{
 		.base		= GIC_DIST_ACTIVE_CLEAR,
 		.len		= VGIC_MAX_IRQS / 8,
 		.bits_per_irq	= 1,
-		.handle_mmio	= handle_mmio_raz_wi,
+		.handle_mmio	= handle_mmio_clear_active_reg,
 	},
 	{
 		.base		= GIC_DIST_PRI,
@@ -388,24 +404,6 @@ static const struct kvm_mmio_range vgic_dist_ranges[] = {
 	{}
 };
 
-static bool vgic_v2_handle_mmio(struct kvm_vcpu *vcpu, struct kvm_run *run,
-				struct kvm_exit_mmio *mmio)
-{
-	unsigned long base = vcpu->kvm->arch.vgic.vgic_dist_base;
-
-	if (!is_in_range(mmio->phys_addr, mmio->len, base,
-			 KVM_VGIC_V2_DIST_SIZE))
-		return false;
-
-	/* GICv2 does not support accesses wider than 32 bits */
-	if (mmio->len > 4) {
-		kvm_inject_dabt(vcpu, mmio->phys_addr);
-		return true;
-	}
-
-	return vgic_handle_mmio_range(vcpu, run, mmio, vgic_dist_ranges, base);
-}
-
 static void vgic_dispatch_sgi(struct kvm_vcpu *vcpu, u32 reg)
 {
 	struct kvm *kvm = vcpu->kvm;
@@ -490,6 +488,7 @@ static bool vgic_v2_queue_sgi(struct kvm_vcpu *vcpu, int irq)
 static int vgic_v2_map_resources(struct kvm *kvm,
 				 const struct vgic_params *params)
 {
+	struct vgic_dist *dist = &kvm->arch.vgic;
 	int ret = 0;
 
 	if (!irqchip_in_kernel(kvm))
@@ -500,13 +499,17 @@ static int vgic_v2_map_resources(struct kvm *kvm,
 	if (vgic_ready(kvm))
 		goto out;
 
-	if (IS_VGIC_ADDR_UNDEF(kvm->arch.vgic.vgic_dist_base) ||
-	    IS_VGIC_ADDR_UNDEF(kvm->arch.vgic.vgic_cpu_base)) {
+	if (IS_VGIC_ADDR_UNDEF(dist->vgic_dist_base) ||
+	    IS_VGIC_ADDR_UNDEF(dist->vgic_cpu_base)) {
 		kvm_err("Need to set vgic cpu and dist addresses first\n");
 		ret = -ENXIO;
 		goto out;
 	}
 
+	vgic_register_kvm_io_dev(kvm, dist->vgic_dist_base,
+				 KVM_VGIC_V2_DIST_SIZE,
+				 vgic_dist_ranges, -1, &dist->dist_iodev);
+
 	/*
 	 * Initialize the vgic if this hasn't already been done on demand by
 	 * accessing the vgic state from userspace.
@@ -514,18 +517,23 @@ static int vgic_v2_map_resources(struct kvm *kvm,
 	ret = vgic_init(kvm);
 	if (ret) {
 		kvm_err("Unable to allocate maps\n");
-		goto out;
+		goto out_unregister;
 	}
 
-	ret = kvm_phys_addr_ioremap(kvm, kvm->arch.vgic.vgic_cpu_base,
+	ret = kvm_phys_addr_ioremap(kvm, dist->vgic_cpu_base,
 				    params->vcpu_base, KVM_VGIC_V2_CPU_SIZE,
 				    true);
 	if (ret) {
 		kvm_err("Unable to remap VGIC CPU to VCPU\n");
-		goto out;
+		goto out_unregister;
 	}
 
-	kvm->arch.vgic.ready = true;
+	dist->ready = true;
+	goto out;
+
+out_unregister:
+	kvm_io_bus_unregister_dev(kvm, KVM_MMIO_BUS, &dist->dist_iodev.dev);
+
 out:
 	if (ret)
 		kvm_vgic_destroy(kvm);
@@ -554,7 +562,6 @@ void vgic_v2_init_emulation(struct kvm *kvm)
 {
 	struct vgic_dist *dist = &kvm->arch.vgic;
 
-	dist->vm_ops.handle_mmio = vgic_v2_handle_mmio;
 	dist->vm_ops.queue_sgi = vgic_v2_queue_sgi;
 	dist->vm_ops.add_sgi_source = vgic_v2_add_sgi_source;
 	dist->vm_ops.init_model = vgic_v2_init_model;
@@ -631,7 +638,7 @@ static bool handle_cpu_mmio_ident(struct kvm_vcpu *vcpu,
  * CPU Interface Register accesses - these are not accessed by the VM, but by
  * user space for saving and restoring VGIC state.
  */
-static const struct kvm_mmio_range vgic_cpu_ranges[] = {
+static const struct vgic_io_range vgic_cpu_ranges[] = {
 	{
 		.base		= GIC_CPU_CTRL,
 		.len		= 12,
@@ -658,12 +665,13 @@ static int vgic_attr_regs_access(struct kvm_device *dev,
 				 struct kvm_device_attr *attr,
 				 u32 *reg, bool is_write)
 {
-	const struct kvm_mmio_range *r = NULL, *ranges;
+	const struct vgic_io_range *r = NULL, *ranges;
 	phys_addr_t offset;
 	int ret, cpuid, c;
 	struct kvm_vcpu *vcpu, *tmp_vcpu;
 	struct vgic_dist *vgic;
 	struct kvm_exit_mmio mmio;
+	u32 data;
 
 	offset = attr->attr & KVM_DEV_ARM_VGIC_OFFSET_MASK;
 	cpuid = (attr->attr & KVM_DEV_ARM_VGIC_CPUID_MASK) >>
@@ -685,6 +693,7 @@ static int vgic_attr_regs_access(struct kvm_device *dev,
 
 	mmio.len = 4;
 	mmio.is_write = is_write;
+	mmio.data = &data;
 	if (is_write)
 		mmio_data_write(&mmio, ~0, *reg);
 	switch (attr->group) {
@@ -699,7 +708,7 @@ static int vgic_attr_regs_access(struct kvm_device *dev,
 	default:
 		BUG();
 	}
-	r = vgic_find_range(ranges, &mmio, offset);
+	r = vgic_find_range(ranges, 4, offset);
 
 	if (unlikely(!r || !r->handle_mmio)) {
 		ret = -ENXIO;
diff --git a/virt/kvm/arm/vgic-v2.c b/virt/kvm/arm/vgic-v2.c
index a0a7b5d..f9b9c7c 100644
--- a/virt/kvm/arm/vgic-v2.c
+++ b/virt/kvm/arm/vgic-v2.c
@@ -72,6 +72,8 @@ static void vgic_v2_sync_lr_elrsr(struct kvm_vcpu *vcpu, int lr,
 {
 	if (!(lr_desc.state & LR_STATE_MASK))
 		vcpu->arch.vgic_cpu.vgic_v2.vgic_elrsr |= (1ULL << lr);
+	else
+		vcpu->arch.vgic_cpu.vgic_v2.vgic_elrsr &= ~(1ULL << lr);
 }
 
 static u64 vgic_v2_get_elrsr(const struct kvm_vcpu *vcpu)
@@ -84,6 +86,11 @@ static u64 vgic_v2_get_eisr(const struct kvm_vcpu *vcpu)
 	return vcpu->arch.vgic_cpu.vgic_v2.vgic_eisr;
 }
 
+static void vgic_v2_clear_eisr(struct kvm_vcpu *vcpu)
+{
+	vcpu->arch.vgic_cpu.vgic_v2.vgic_eisr = 0;
+}
+
 static u32 vgic_v2_get_interrupt_status(const struct kvm_vcpu *vcpu)
 {
 	u32 misr = vcpu->arch.vgic_cpu.vgic_v2.vgic_misr;
@@ -148,6 +155,7 @@ static const struct vgic_ops vgic_v2_ops = {
 	.sync_lr_elrsr		= vgic_v2_sync_lr_elrsr,
 	.get_elrsr		= vgic_v2_get_elrsr,
 	.get_eisr		= vgic_v2_get_eisr,
+	.clear_eisr		= vgic_v2_clear_eisr,
 	.get_interrupt_status	= vgic_v2_get_interrupt_status,
 	.enable_underflow	= vgic_v2_enable_underflow,
 	.disable_underflow	= vgic_v2_disable_underflow,
diff --git a/virt/kvm/arm/vgic-v3-emul.c b/virt/kvm/arm/vgic-v3-emul.c
index b3f1546..e9c3a7a 100644
--- a/virt/kvm/arm/vgic-v3-emul.c
+++ b/virt/kvm/arm/vgic-v3-emul.c
@@ -340,7 +340,7 @@ static bool handle_mmio_idregs(struct kvm_vcpu *vcpu,
 	return false;
 }
 
-static const struct kvm_mmio_range vgic_v3_dist_ranges[] = {
+static const struct vgic_io_range vgic_v3_dist_ranges[] = {
 	{
 		.base           = GICD_CTLR,
 		.len            = 0x04,
@@ -502,6 +502,43 @@ static const struct kvm_mmio_range vgic_v3_dist_ranges[] = {
 	{},
 };
 
+static bool handle_mmio_ctlr_redist(struct kvm_vcpu *vcpu,
+				    struct kvm_exit_mmio *mmio,
+				    phys_addr_t offset)
+{
+	/* since we don't support LPIs, this register is zero for now */
+	vgic_reg_access(mmio, NULL, offset,
+			ACCESS_READ_RAZ | ACCESS_WRITE_IGNORED);
+	return false;
+}
+
+static bool handle_mmio_typer_redist(struct kvm_vcpu *vcpu,
+				     struct kvm_exit_mmio *mmio,
+				     phys_addr_t offset)
+{
+	u32 reg;
+	u64 mpidr;
+	struct kvm_vcpu *redist_vcpu = mmio->private;
+	int target_vcpu_id = redist_vcpu->vcpu_id;
+
+	/* the upper 32 bits contain the affinity value */
+	if ((offset & ~3) == 4) {
+		mpidr = kvm_vcpu_get_mpidr_aff(redist_vcpu);
+		reg = compress_mpidr(mpidr);
+
+		vgic_reg_access(mmio, &reg, offset,
+				ACCESS_READ_VALUE | ACCESS_WRITE_IGNORED);
+		return false;
+	}
+
+	reg = redist_vcpu->vcpu_id << 8;
+	if (target_vcpu_id == atomic_read(&vcpu->kvm->online_vcpus) - 1)
+		reg |= GICR_TYPER_LAST;
+	vgic_reg_access(mmio, &reg, offset,
+			ACCESS_READ_VALUE | ACCESS_WRITE_IGNORED);
+	return false;
+}
+
 static bool handle_mmio_set_enable_reg_redist(struct kvm_vcpu *vcpu,
 					      struct kvm_exit_mmio *mmio,
 					      phys_addr_t offset)
@@ -570,186 +607,107 @@ static bool handle_mmio_cfg_reg_redist(struct kvm_vcpu *vcpu,
 	return vgic_handle_cfg_reg(reg, mmio, offset);
 }
 
-static const struct kvm_mmio_range vgic_redist_sgi_ranges[] = {
+#define SGI_base(x) ((x) + SZ_64K)
+
+static const struct vgic_io_range vgic_redist_ranges[] = {
+	{
+		.base           = GICR_CTLR,
+		.len            = 0x04,
+		.bits_per_irq   = 0,
+		.handle_mmio    = handle_mmio_ctlr_redist,
+	},
+	{
+		.base           = GICR_TYPER,
+		.len            = 0x08,
+		.bits_per_irq   = 0,
+		.handle_mmio    = handle_mmio_typer_redist,
+	},
+	{
+		.base           = GICR_IIDR,
+		.len            = 0x04,
+		.bits_per_irq   = 0,
+		.handle_mmio    = handle_mmio_iidr,
+	},
+	{
+		.base           = GICR_WAKER,
+		.len            = 0x04,
+		.bits_per_irq   = 0,
+		.handle_mmio    = handle_mmio_raz_wi,
+	},
 	{
-		.base		= GICR_IGROUPR0,
+		.base           = GICR_IDREGS,
+		.len            = 0x30,
+		.bits_per_irq   = 0,
+		.handle_mmio    = handle_mmio_idregs,
+	},
+	{
+		.base		= SGI_base(GICR_IGROUPR0),
 		.len		= 0x04,
 		.bits_per_irq	= 1,
 		.handle_mmio	= handle_mmio_rao_wi,
 	},
 	{
-		.base		= GICR_ISENABLER0,
+		.base		= SGI_base(GICR_ISENABLER0),
 		.len		= 0x04,
 		.bits_per_irq	= 1,
 		.handle_mmio	= handle_mmio_set_enable_reg_redist,
 	},
 	{
-		.base		= GICR_ICENABLER0,
+		.base		= SGI_base(GICR_ICENABLER0),
 		.len		= 0x04,
 		.bits_per_irq	= 1,
 		.handle_mmio	= handle_mmio_clear_enable_reg_redist,
 	},
 	{
-		.base		= GICR_ISPENDR0,
+		.base		= SGI_base(GICR_ISPENDR0),
 		.len		= 0x04,
 		.bits_per_irq	= 1,
 		.handle_mmio	= handle_mmio_set_pending_reg_redist,
 	},
 	{
-		.base		= GICR_ICPENDR0,
+		.base		= SGI_base(GICR_ICPENDR0),
 		.len		= 0x04,
 		.bits_per_irq	= 1,
 		.handle_mmio	= handle_mmio_clear_pending_reg_redist,
 	},
 	{
-		.base		= GICR_ISACTIVER0,
+		.base		= SGI_base(GICR_ISACTIVER0),
 		.len		= 0x04,
 		.bits_per_irq	= 1,
 		.handle_mmio	= handle_mmio_raz_wi,
 	},
 	{
-		.base		= GICR_ICACTIVER0,
+		.base		= SGI_base(GICR_ICACTIVER0),
 		.len		= 0x04,
 		.bits_per_irq	= 1,
 		.handle_mmio	= handle_mmio_raz_wi,
 	},
 	{
-		.base		= GICR_IPRIORITYR0,
+		.base		= SGI_base(GICR_IPRIORITYR0),
 		.len		= 0x20,
 		.bits_per_irq	= 8,
 		.handle_mmio	= handle_mmio_priority_reg_redist,
 	},
 	{
-		.base		= GICR_ICFGR0,
+		.base		= SGI_base(GICR_ICFGR0),
 		.len		= 0x08,
 		.bits_per_irq	= 2,
 		.handle_mmio	= handle_mmio_cfg_reg_redist,
 	},
 	{
-		.base		= GICR_IGRPMODR0,
+		.base		= SGI_base(GICR_IGRPMODR0),
 		.len		= 0x04,
 		.bits_per_irq	= 1,
 		.handle_mmio	= handle_mmio_raz_wi,
 	},
 	{
-		.base		= GICR_NSACR,
+		.base		= SGI_base(GICR_NSACR),
 		.len		= 0x04,
 		.handle_mmio	= handle_mmio_raz_wi,
 	},
 	{},
 };
 
-static bool handle_mmio_ctlr_redist(struct kvm_vcpu *vcpu,
-				    struct kvm_exit_mmio *mmio,
-				    phys_addr_t offset)
-{
-	/* since we don't support LPIs, this register is zero for now */
-	vgic_reg_access(mmio, NULL, offset,
-			ACCESS_READ_RAZ | ACCESS_WRITE_IGNORED);
-	return false;
-}
-
-static bool handle_mmio_typer_redist(struct kvm_vcpu *vcpu,
-				     struct kvm_exit_mmio *mmio,
-				     phys_addr_t offset)
-{
-	u32 reg;
-	u64 mpidr;
-	struct kvm_vcpu *redist_vcpu = mmio->private;
-	int target_vcpu_id = redist_vcpu->vcpu_id;
-
-	/* the upper 32 bits contain the affinity value */
-	if ((offset & ~3) == 4) {
-		mpidr = kvm_vcpu_get_mpidr_aff(redist_vcpu);
-		reg = compress_mpidr(mpidr);
-
-		vgic_reg_access(mmio, &reg, offset,
-				ACCESS_READ_VALUE | ACCESS_WRITE_IGNORED);
-		return false;
-	}
-
-	reg = redist_vcpu->vcpu_id << 8;
-	if (target_vcpu_id == atomic_read(&vcpu->kvm->online_vcpus) - 1)
-		reg |= GICR_TYPER_LAST;
-	vgic_reg_access(mmio, &reg, offset,
-			ACCESS_READ_VALUE | ACCESS_WRITE_IGNORED);
-	return false;
-}
-
-static const struct kvm_mmio_range vgic_redist_ranges[] = {
-	{
-		.base           = GICR_CTLR,
-		.len            = 0x04,
-		.bits_per_irq   = 0,
-		.handle_mmio    = handle_mmio_ctlr_redist,
-	},
-	{
-		.base           = GICR_TYPER,
-		.len            = 0x08,
-		.bits_per_irq   = 0,
-		.handle_mmio    = handle_mmio_typer_redist,
-	},
-	{
-		.base           = GICR_IIDR,
-		.len            = 0x04,
-		.bits_per_irq   = 0,
-		.handle_mmio    = handle_mmio_iidr,
-	},
-	{
-		.base           = GICR_WAKER,
-		.len            = 0x04,
-		.bits_per_irq   = 0,
-		.handle_mmio    = handle_mmio_raz_wi,
-	},
-	{
-		.base           = GICR_IDREGS,
-		.len            = 0x30,
-		.bits_per_irq   = 0,
-		.handle_mmio    = handle_mmio_idregs,
-	},
-	{},
-};
-
-/*
- * This function splits accesses between the distributor and the two
- * redistributor parts (private/SPI). As each redistributor is accessible
- * from any CPU, we have to determine the affected VCPU by taking the faulting
- * address into account. We then pass this VCPU to the handler function via
- * the private parameter.
- */
-#define SGI_BASE_OFFSET SZ_64K
-static bool vgic_v3_handle_mmio(struct kvm_vcpu *vcpu, struct kvm_run *run,
-				struct kvm_exit_mmio *mmio)
-{
-	struct vgic_dist *dist = &vcpu->kvm->arch.vgic;
-	unsigned long dbase = dist->vgic_dist_base;
-	unsigned long rdbase = dist->vgic_redist_base;
-	int nrcpus = atomic_read(&vcpu->kvm->online_vcpus);
-	int vcpu_id;
-	const struct kvm_mmio_range *mmio_range;
-
-	if (is_in_range(mmio->phys_addr, mmio->len, dbase, GIC_V3_DIST_SIZE)) {
-		return vgic_handle_mmio_range(vcpu, run, mmio,
-					      vgic_v3_dist_ranges, dbase);
-	}
-
-	if (!is_in_range(mmio->phys_addr, mmio->len, rdbase,
-	    GIC_V3_REDIST_SIZE * nrcpus))
-		return false;
-
-	vcpu_id = (mmio->phys_addr - rdbase) / GIC_V3_REDIST_SIZE;
-	rdbase += (vcpu_id * GIC_V3_REDIST_SIZE);
-	mmio->private = kvm_get_vcpu(vcpu->kvm, vcpu_id);
-
-	if (mmio->phys_addr >= rdbase + SGI_BASE_OFFSET) {
-		rdbase += SGI_BASE_OFFSET;
-		mmio_range = vgic_redist_sgi_ranges;
-	} else {
-		mmio_range = vgic_redist_ranges;
-	}
-	return vgic_handle_mmio_range(vcpu, run, mmio, mmio_range, rdbase);
-}
-
 static bool vgic_v3_queue_sgi(struct kvm_vcpu *vcpu, int irq)
 {
 	if (vgic_queue_irq(vcpu, 0, irq)) {
@@ -766,6 +724,9 @@ static int vgic_v3_map_resources(struct kvm *kvm,
 {
 	int ret = 0;
 	struct vgic_dist *dist = &kvm->arch.vgic;
+	gpa_t rdbase = dist->vgic_redist_base;
+	struct vgic_io_device *iodevs = NULL;
+	int i;
 
 	if (!irqchip_in_kernel(kvm))
 		return 0;
@@ -791,7 +752,41 @@ static int vgic_v3_map_resources(struct kvm *kvm,
 		goto out;
 	}
 
-	kvm->arch.vgic.ready = true;
+	ret = vgic_register_kvm_io_dev(kvm, dist->vgic_dist_base,
+				       GIC_V3_DIST_SIZE, vgic_v3_dist_ranges,
+				       -1, &dist->dist_iodev);
+	if (ret)
+		goto out;
+
+	iodevs = kcalloc(dist->nr_cpus, sizeof(iodevs[0]), GFP_KERNEL);
+	if (!iodevs) {
+		ret = -ENOMEM;
+		goto out_unregister;
+	}
+
+	for (i = 0; i < dist->nr_cpus; i++) {
+		ret = vgic_register_kvm_io_dev(kvm, rdbase,
+					       SZ_128K, vgic_redist_ranges,
+					       i, &iodevs[i]);
+		if (ret)
+			goto out_unregister;
+		rdbase += GIC_V3_REDIST_SIZE;
+	}
+
+	dist->redist_iodevs = iodevs;
+	dist->ready = true;
+	goto out;
+
+out_unregister:
+	kvm_io_bus_unregister_dev(kvm, KVM_MMIO_BUS, &dist->dist_iodev.dev);
+	if (iodevs) {
+		for (i = 0; i < dist->nr_cpus; i++) {
+			if (iodevs[i].dev.ops)
+				kvm_io_bus_unregister_dev(kvm, KVM_MMIO_BUS,
+							  &iodevs[i].dev);
+		}
+	}
+
 out:
 	if (ret)
 		kvm_vgic_destroy(kvm);
@@ -832,7 +827,6 @@ void vgic_v3_init_emulation(struct kvm *kvm)
 {
 	struct vgic_dist *dist = &kvm->arch.vgic;
 
-	dist->vm_ops.handle_mmio = vgic_v3_handle_mmio;
 	dist->vm_ops.queue_sgi = vgic_v3_queue_sgi;
 	dist->vm_ops.add_sgi_source = vgic_v3_add_sgi_source;
 	dist->vm_ops.init_model = vgic_v3_init_model;
diff --git a/virt/kvm/arm/vgic-v3.c b/virt/kvm/arm/vgic-v3.c
index 3a62d8a..dff0602 100644
--- a/virt/kvm/arm/vgic-v3.c
+++ b/virt/kvm/arm/vgic-v3.c
@@ -104,6 +104,8 @@ static void vgic_v3_sync_lr_elrsr(struct kvm_vcpu *vcpu, int lr,
 {
 	if (!(lr_desc.state & LR_STATE_MASK))
 		vcpu->arch.vgic_cpu.vgic_v3.vgic_elrsr |= (1U << lr);
+	else
+		vcpu->arch.vgic_cpu.vgic_v3.vgic_elrsr &= ~(1U << lr);
 }
 
 static u64 vgic_v3_get_elrsr(const struct kvm_vcpu *vcpu)
@@ -116,6 +118,11 @@ static u64 vgic_v3_get_eisr(const struct kvm_vcpu *vcpu)
 	return vcpu->arch.vgic_cpu.vgic_v3.vgic_eisr;
 }
 
+static void vgic_v3_clear_eisr(struct kvm_vcpu *vcpu)
+{
+	vcpu->arch.vgic_cpu.vgic_v3.vgic_eisr = 0;
+}
+
 static u32 vgic_v3_get_interrupt_status(const struct kvm_vcpu *vcpu)
 {
 	u32 misr = vcpu->arch.vgic_cpu.vgic_v3.vgic_misr;
@@ -192,6 +199,7 @@ static const struct vgic_ops vgic_v3_ops = {
 	.sync_lr_elrsr		= vgic_v3_sync_lr_elrsr,
 	.get_elrsr		= vgic_v3_get_elrsr,
 	.get_eisr		= vgic_v3_get_eisr,
+	.clear_eisr		= vgic_v3_clear_eisr,
 	.get_interrupt_status	= vgic_v3_get_interrupt_status,
 	.enable_underflow	= vgic_v3_enable_underflow,
 	.disable_underflow	= vgic_v3_disable_underflow,
diff --git a/virt/kvm/arm/vgic.c b/virt/kvm/arm/vgic.c
index 0cc6ab6..8d550ff 100644
--- a/virt/kvm/arm/vgic.c
+++ b/virt/kvm/arm/vgic.c
@@ -31,6 +31,9 @@
 #include <asm/kvm_emulate.h>
 #include <asm/kvm_arm.h>
 #include <asm/kvm_mmu.h>
+#include <trace/events/kvm.h>
+#include <asm/kvm.h>
+#include <kvm/iodev.h>
 
 /*
  * How the whole thing works (courtesy of Christoffer Dall):
@@ -263,6 +266,13 @@ static int vgic_irq_is_queued(struct kvm_vcpu *vcpu, int irq)
 	return vgic_bitmap_get_irq_val(&dist->irq_queued, vcpu->vcpu_id, irq);
 }
 
+static int vgic_irq_is_active(struct kvm_vcpu *vcpu, int irq)
+{
+	struct vgic_dist *dist = &vcpu->kvm->arch.vgic;
+
+	return vgic_bitmap_get_irq_val(&dist->irq_active, vcpu->vcpu_id, irq);
+}
+
 static void vgic_irq_set_queued(struct kvm_vcpu *vcpu, int irq)
 {
 	struct vgic_dist *dist = &vcpu->kvm->arch.vgic;
@@ -277,6 +287,20 @@ static void vgic_irq_clear_queued(struct kvm_vcpu *vcpu, int irq)
 	vgic_bitmap_set_irq_val(&dist->irq_queued, vcpu->vcpu_id, irq, 0);
 }
 
+static void vgic_irq_set_active(struct kvm_vcpu *vcpu, int irq)
+{
+	struct vgic_dist *dist = &vcpu->kvm->arch.vgic;
+
+	vgic_bitmap_set_irq_val(&dist->irq_active, vcpu->vcpu_id, irq, 1);
+}
+
+static void vgic_irq_clear_active(struct kvm_vcpu *vcpu, int irq)
+{
+	struct vgic_dist *dist = &vcpu->kvm->arch.vgic;
+
+	vgic_bitmap_set_irq_val(&dist->irq_active, vcpu->vcpu_id, irq, 0);
+}
+
 static int vgic_dist_irq_get_level(struct kvm_vcpu *vcpu, int irq)
 {
 	struct vgic_dist *dist = &vcpu->kvm->arch.vgic;
@@ -520,6 +544,44 @@ bool vgic_handle_clear_pending_reg(struct kvm *kvm,
 	return false;
 }
 
+bool vgic_handle_set_active_reg(struct kvm *kvm,
+				struct kvm_exit_mmio *mmio,
+				phys_addr_t offset, int vcpu_id)
+{
+	u32 *reg;
+	struct vgic_dist *dist = &kvm->arch.vgic;
+
+	reg = vgic_bitmap_get_reg(&dist->irq_active, vcpu_id, offset);
+	vgic_reg_access(mmio, reg, offset,
+			ACCESS_READ_VALUE | ACCESS_WRITE_SETBIT);
+
+	if (mmio->is_write) {
+		vgic_update_state(kvm);
+		return true;
+	}
+
+	return false;
+}
+
+bool vgic_handle_clear_active_reg(struct kvm *kvm,
+				  struct kvm_exit_mmio *mmio,
+				  phys_addr_t offset, int vcpu_id)
+{
+	u32 *reg;
+	struct vgic_dist *dist = &kvm->arch.vgic;
+
+	reg = vgic_bitmap_get_reg(&dist->irq_active, vcpu_id, offset);
+	vgic_reg_access(mmio, reg, offset,
+			ACCESS_READ_VALUE | ACCESS_WRITE_CLEARBIT);
+
+	if (mmio->is_write) {
+		vgic_update_state(kvm);
+		return true;
+	}
+
+	return false;
+}
+
 static u32 vgic_cfg_expand(u16 val)
 {
 	u32 res = 0;
@@ -588,16 +650,12 @@ bool vgic_handle_cfg_reg(u32 *reg, struct kvm_exit_mmio *mmio,
 }
 
 /**
- * vgic_unqueue_irqs - move pending IRQs from LRs to the distributor
+ * vgic_unqueue_irqs - move pending/active IRQs from LRs to the distributor
  * @vgic_cpu: Pointer to the vgic_cpu struct holding the LRs
  *
- * Move any pending IRQs that have already been assigned to LRs back to the
+ * Move any IRQs that have already been assigned to LRs back to the
  * emulated distributor state so that the complete emulated state can be read
  * from the main emulation structures without investigating the LRs.
- *
- * Note that IRQs in the active state in the LRs get their pending state moved
- * to the distributor but the active state stays in the LRs, because we don't
- * track the active state on the distributor side.
  */
 void vgic_unqueue_irqs(struct kvm_vcpu *vcpu)
 {
@@ -613,12 +671,22 @@ void vgic_unqueue_irqs(struct kvm_vcpu *vcpu)
 		 * 01: pending
 		 * 10: active
 		 * 11: pending and active
-		 *
-		 * If the LR holds only an active interrupt (not pending) then
-		 * just leave it alone.
 		 */
-		if ((lr.state & LR_STATE_MASK) == LR_STATE_ACTIVE)
-			continue;
+		BUG_ON(!(lr.state & LR_STATE_MASK));
+
+		/* Reestablish SGI source for pending and active IRQs */
+		if (lr.irq < VGIC_NR_SGIS)
+			add_sgi_source(vcpu, lr.irq, lr.source);
+
+		/*
+		 * If the LR holds an active (10) or a pending and active (11)
+		 * interrupt then move the active state to the
+		 * distributor tracking bit.
+		 */
+		if (lr.state & LR_STATE_ACTIVE) {
+			vgic_irq_set_active(vcpu, lr.irq);
+			lr.state &= ~LR_STATE_ACTIVE;
+		}
 
 		/*
 		 * Reestablish the pending state on the distributor and the
@@ -626,21 +694,19 @@ void vgic_unqueue_irqs(struct kvm_vcpu *vcpu)
 		 * is fine, then we are only setting a few bits that were
 		 * already set.
 		 */
-		vgic_dist_irq_set_pending(vcpu, lr.irq);
-		if (lr.irq < VGIC_NR_SGIS)
-			add_sgi_source(vcpu, lr.irq, lr.source);
-		lr.state &= ~LR_STATE_PENDING;
+		if (lr.state & LR_STATE_PENDING) {
+			vgic_dist_irq_set_pending(vcpu, lr.irq);
+			lr.state &= ~LR_STATE_PENDING;
+		}
+
 		vgic_set_lr(vcpu, i, lr);
 
 		/*
-		 * If there's no state left on the LR (it could still be
-		 * active), then the LR does not hold any useful info and can
-		 * be marked as free for other use.
+		 * Mark the LR as free for other use.
 		 */
-		if (!(lr.state & LR_STATE_MASK)) {
-			vgic_retire_lr(i, lr.irq, vcpu);
-			vgic_irq_clear_queued(vcpu, lr.irq);
-		}
+		BUG_ON(lr.state & LR_STATE_MASK);
+		vgic_retire_lr(i, lr.irq, vcpu);
+		vgic_irq_clear_queued(vcpu, lr.irq);
 
 		/* Finally update the VGIC state. */
 		vgic_update_state(vcpu->kvm);
@@ -648,24 +714,21 @@ void vgic_unqueue_irqs(struct kvm_vcpu *vcpu)
 }
 
 const
-struct kvm_mmio_range *vgic_find_range(const struct kvm_mmio_range *ranges,
-				       struct kvm_exit_mmio *mmio,
-				       phys_addr_t offset)
-{
-	const struct kvm_mmio_range *r = ranges;
-
-	while (r->len) {
-		if (offset >= r->base &&
-		    (offset + mmio->len) <= (r->base + r->len))
-			return r;
-		r++;
+struct vgic_io_range *vgic_find_range(const struct vgic_io_range *ranges,
+				      int len, gpa_t offset)
+{
+	while (ranges->len) {
+		if (offset >= ranges->base &&
+		    (offset + len) <= (ranges->base + ranges->len))
+			return ranges;
+		ranges++;
 	}
 
 	return NULL;
 }
 
 static bool vgic_validate_access(const struct vgic_dist *dist,
-				 const struct kvm_mmio_range *range,
+				 const struct vgic_io_range *range,
 				 unsigned long offset)
 {
 	int irq;
@@ -693,9 +756,8 @@ static bool vgic_validate_access(const struct vgic_dist *dist,
 static bool call_range_handler(struct kvm_vcpu *vcpu,
 			       struct kvm_exit_mmio *mmio,
 			       unsigned long offset,
-			       const struct kvm_mmio_range *range)
+			       const struct vgic_io_range *range)
 {
-	u32 *data32 = (void *)mmio->data;
 	struct kvm_exit_mmio mmio32;
 	bool ret;
 
@@ -712,91 +774,142 @@ static bool call_range_handler(struct kvm_vcpu *vcpu,
 	mmio32.private = mmio->private;
 
 	mmio32.phys_addr = mmio->phys_addr + 4;
-	if (mmio->is_write)
-		*(u32 *)mmio32.data = data32[1];
+	mmio32.data = &((u32 *)mmio->data)[1];
 	ret = range->handle_mmio(vcpu, &mmio32, offset + 4);
-	if (!mmio->is_write)
-		data32[1] = *(u32 *)mmio32.data;
 
 	mmio32.phys_addr = mmio->phys_addr;
-	if (mmio->is_write)
-		*(u32 *)mmio32.data = data32[0];
+	mmio32.data = &((u32 *)mmio->data)[0];
 	ret |= range->handle_mmio(vcpu, &mmio32, offset);
-	if (!mmio->is_write)
-		data32[0] = *(u32 *)mmio32.data;
 
 	return ret;
 }
 
 /**
- * vgic_handle_mmio_range - handle an in-kernel MMIO access
+ * vgic_handle_mmio_access - handle an in-kernel MMIO access
+ * This is called by the read/write KVM IO device wrappers below.
  * @vcpu:	pointer to the vcpu performing the access
- * @run:	pointer to the kvm_run structure
- * @mmio:	pointer to the data describing the access
- * @ranges:	array of MMIO ranges in a given region
- * @mmio_base:	base address of that region
+ * @this:	pointer to the KVM IO device in charge
+ * @addr:	guest physical address of the access
+ * @len:	size of the access
+ * @val:	pointer to the data region
+ * @is_write:	read or write access
  *
  * returns true if the MMIO access could be performed
  */
-bool vgic_handle_mmio_range(struct kvm_vcpu *vcpu, struct kvm_run *run,
-			    struct kvm_exit_mmio *mmio,
-			    const struct kvm_mmio_range *ranges,
-			    unsigned long mmio_base)
+static int vgic_handle_mmio_access(struct kvm_vcpu *vcpu,
+				   struct kvm_io_device *this, gpa_t addr,
+				   int len, void *val, bool is_write)
 {
-	const struct kvm_mmio_range *range;
 	struct vgic_dist *dist = &vcpu->kvm->arch.vgic;
+	struct vgic_io_device *iodev = container_of(this,
+						    struct vgic_io_device, dev);
+	struct kvm_run *run = vcpu->run;
+	const struct vgic_io_range *range;
+	struct kvm_exit_mmio mmio;
 	bool updated_state;
-	unsigned long offset;
+	gpa_t offset;
 
-	offset = mmio->phys_addr - mmio_base;
-	range = vgic_find_range(ranges, mmio, offset);
+	offset = addr - iodev->addr;
+	range = vgic_find_range(iodev->reg_ranges, len, offset);
 	if (unlikely(!range || !range->handle_mmio)) {
-		pr_warn("Unhandled access %d %08llx %d\n",
-			mmio->is_write, mmio->phys_addr, mmio->len);
-		return false;
+		pr_warn("Unhandled access %d %08llx %d\n", is_write, addr, len);
+		return -ENXIO;
 	}
 
-	spin_lock(&vcpu->kvm->arch.vgic.lock);
+	mmio.phys_addr = addr;
+	mmio.len = len;
+	mmio.is_write = is_write;
+	mmio.data = val;
+	mmio.private = iodev->redist_vcpu;
+
+	spin_lock(&dist->lock);
 	offset -= range->base;
 	if (vgic_validate_access(dist, range, offset)) {
-		updated_state = call_range_handler(vcpu, mmio, offset, range);
+		updated_state = call_range_handler(vcpu, &mmio, offset, range);
 	} else {
-		if (!mmio->is_write)
-			memset(mmio->data, 0, mmio->len);
+		if (!is_write)
+			memset(val, 0, len);
 		updated_state = false;
 	}
-	spin_unlock(&vcpu->kvm->arch.vgic.lock);
-	kvm_prepare_mmio(run, mmio);
+	spin_unlock(&dist->lock);
+	run->mmio.is_write	= is_write;
+	run->mmio.len		= len;
+	run->mmio.phys_addr	= addr;
+	memcpy(run->mmio.data, val, len);
+
 	kvm_handle_mmio_return(vcpu, run);
 
 	if (updated_state)
 		vgic_kick_vcpus(vcpu->kvm);
 
-	return true;
+	return 0;
 }
 
+static int vgic_handle_mmio_read(struct kvm_vcpu *vcpu,
+				 struct kvm_io_device *this,
+				 gpa_t addr, int len, void *val)
+{
+	return vgic_handle_mmio_access(vcpu, this, addr, len, val, false);
+}
+
+static int vgic_handle_mmio_write(struct kvm_vcpu *vcpu,
+				  struct kvm_io_device *this,
+				  gpa_t addr, int len, const void *val)
+{
+	return vgic_handle_mmio_access(vcpu, this, addr, len, (void *)val,
+				       true);
+}
+
+struct kvm_io_device_ops vgic_io_ops = {
+	.read	= vgic_handle_mmio_read,
+	.write	= vgic_handle_mmio_write,
+};
+
 /**
- * vgic_handle_mmio - handle an in-kernel MMIO access for the GIC emulation
- * @vcpu:      pointer to the vcpu performing the access
- * @run:       pointer to the kvm_run structure
- * @mmio:      pointer to the data describing the access
+ * vgic_register_kvm_io_dev - register VGIC register frame on the KVM I/O bus
+ * @kvm:            The VM structure pointer
+ * @base:           The (guest) base address for the register frame
+ * @len:            Length of the register frame window
+ * @ranges:         Describing the handler functions for each register
+ * @redist_vcpu_id: The VCPU ID to pass on to the handlers on call
+ * @iodev:          Points to memory to be passed on to the handler
  *
- * returns true if the MMIO access has been performed in kernel space,
- * and false if it needs to be emulated in user space.
- * Calls the actual handling routine for the selected VGIC model.
+ * @iodev stores the parameters of this function to be usable by the handler
+ * respectively the dispatcher function (since the KVM I/O bus framework lacks
+ * an opaque parameter). Initialization is done in this function, but the
+ * reference should be valid and unique for the whole VGIC lifetime.
+ * If the register frame is not mapped for a specific VCPU, pass -1 to
+ * @redist_vcpu_id.
  */
-bool vgic_handle_mmio(struct kvm_vcpu *vcpu, struct kvm_run *run,
-		      struct kvm_exit_mmio *mmio)
+int vgic_register_kvm_io_dev(struct kvm *kvm, gpa_t base, int len,
+			     const struct vgic_io_range *ranges,
+			     int redist_vcpu_id,
+			     struct vgic_io_device *iodev)
 {
-	if (!irqchip_in_kernel(vcpu->kvm))
-		return false;
+	struct kvm_vcpu *vcpu = NULL;
+	int ret;
 
-	/*
-	 * This will currently call either vgic_v2_handle_mmio() or
-	 * vgic_v3_handle_mmio(), which in turn will call
-	 * vgic_handle_mmio_range() defined above.
-	 */
-	return vcpu->kvm->arch.vgic.vm_ops.handle_mmio(vcpu, run, mmio);
+	if (redist_vcpu_id >= 0)
+		vcpu = kvm_get_vcpu(kvm, redist_vcpu_id);
+
+	iodev->addr		= base;
+	iodev->len		= len;
+	iodev->reg_ranges	= ranges;
+	iodev->redist_vcpu	= vcpu;
+
+	kvm_iodevice_init(&iodev->dev, &vgic_io_ops);
+
+	mutex_lock(&kvm->slots_lock);
+
+	ret = kvm_io_bus_register_dev(kvm, KVM_MMIO_BUS, base, len,
+				      &iodev->dev);
+	mutex_unlock(&kvm->slots_lock);
+
+	/* Mark the iodev as invalid if registration fails. */
+	if (ret)
+		iodev->dev.ops = NULL;
+
+	return ret;
 }
 
 static int vgic_nr_shared_irqs(struct vgic_dist *dist)
@@ -804,6 +917,36 @@ static int vgic_nr_shared_irqs(struct vgic_dist *dist)
 	return dist->nr_irqs - VGIC_NR_PRIVATE_IRQS;
 }
 
+static int compute_active_for_cpu(struct kvm_vcpu *vcpu)
+{
+	struct vgic_dist *dist = &vcpu->kvm->arch.vgic;
+	unsigned long *active, *enabled, *act_percpu, *act_shared;
+	unsigned long active_private, active_shared;
+	int nr_shared = vgic_nr_shared_irqs(dist);
+	int vcpu_id;
+
+	vcpu_id = vcpu->vcpu_id;
+	act_percpu = vcpu->arch.vgic_cpu.active_percpu;
+	act_shared = vcpu->arch.vgic_cpu.active_shared;
+
+	active = vgic_bitmap_get_cpu_map(&dist->irq_active, vcpu_id);
+	enabled = vgic_bitmap_get_cpu_map(&dist->irq_enabled, vcpu_id);
+	bitmap_and(act_percpu, active, enabled, VGIC_NR_PRIVATE_IRQS);
+
+	active = vgic_bitmap_get_shared_map(&dist->irq_active);
+	enabled = vgic_bitmap_get_shared_map(&dist->irq_enabled);
+	bitmap_and(act_shared, active, enabled, nr_shared);
+	bitmap_and(act_shared, act_shared,
+		   vgic_bitmap_get_shared_map(&dist->irq_spi_target[vcpu_id]),
+		   nr_shared);
+
+	active_private = find_first_bit(act_percpu, VGIC_NR_PRIVATE_IRQS);
+	active_shared = find_first_bit(act_shared, nr_shared);
+
+	return (active_private < VGIC_NR_PRIVATE_IRQS ||
+		active_shared < nr_shared);
+}
+
 static int compute_pending_for_cpu(struct kvm_vcpu *vcpu)
 {
 	struct vgic_dist *dist = &vcpu->kvm->arch.vgic;
@@ -835,7 +978,7 @@ static int compute_pending_for_cpu(struct kvm_vcpu *vcpu)
 
 /*
  * Update the interrupt state and determine which CPUs have pending
- * interrupts. Must be called with distributor lock held.
+ * or active interrupts. Must be called with distributor lock held.
  */
 void vgic_update_state(struct kvm *kvm)
 {
@@ -849,10 +992,13 @@ void vgic_update_state(struct kvm *kvm)
 	}
 
 	kvm_for_each_vcpu(c, vcpu, kvm) {
-		if (compute_pending_for_cpu(vcpu)) {
-			pr_debug("CPU%d has pending interrupts\n", c);
+		if (compute_pending_for_cpu(vcpu))
 			set_bit(c, dist->irq_pending_on_cpu);
-		}
+
+		if (compute_active_for_cpu(vcpu))
+			set_bit(c, dist->irq_active_on_cpu);
+		else
+			clear_bit(c, dist->irq_active_on_cpu);
 	}
 }
 
@@ -883,6 +1029,11 @@ static inline u64 vgic_get_eisr(struct kvm_vcpu *vcpu)
 	return vgic_ops->get_eisr(vcpu);
 }
 
+static inline void vgic_clear_eisr(struct kvm_vcpu *vcpu)
+{
+	vgic_ops->clear_eisr(vcpu);
+}
+
 static inline u32 vgic_get_interrupt_status(struct kvm_vcpu *vcpu)
 {
 	return vgic_ops->get_interrupt_status(vcpu);
@@ -922,6 +1073,7 @@ static void vgic_retire_lr(int lr_nr, int irq, struct kvm_vcpu *vcpu)
 	vgic_set_lr(vcpu, lr_nr, vlr);
 	clear_bit(lr_nr, vgic_cpu->lr_used);
 	vgic_cpu->vgic_irq_lr_map[irq] = LR_EMPTY;
+	vgic_sync_lr_elrsr(vcpu, lr_nr, vlr);
 }
 
 /*
@@ -949,6 +1101,26 @@ static void vgic_retire_disabled_irqs(struct kvm_vcpu *vcpu)
 	}
 }
 
+static void vgic_queue_irq_to_lr(struct kvm_vcpu *vcpu, int irq,
+				 int lr_nr, struct vgic_lr vlr)
+{
+	if (vgic_irq_is_active(vcpu, irq)) {
+		vlr.state |= LR_STATE_ACTIVE;
+		kvm_debug("Set active, clear distributor: 0x%x\n", vlr.state);
+		vgic_irq_clear_active(vcpu, irq);
+		vgic_update_state(vcpu->kvm);
+	} else if (vgic_dist_irq_is_pending(vcpu, irq)) {
+		vlr.state |= LR_STATE_PENDING;
+		kvm_debug("Set pending: 0x%x\n", vlr.state);
+	}
+
+	if (!vgic_irq_is_edge(vcpu, irq))
+		vlr.state |= LR_EOI_INT;
+
+	vgic_set_lr(vcpu, lr_nr, vlr);
+	vgic_sync_lr_elrsr(vcpu, lr_nr, vlr);
+}
+
 /*
  * Queue an interrupt to a CPU virtual interface. Return true on success,
  * or false if it wasn't possible to queue it.
@@ -976,8 +1148,7 @@ bool vgic_queue_irq(struct kvm_vcpu *vcpu, u8 sgi_source_id, int irq)
 		if (vlr.source == sgi_source_id) {
 			kvm_debug("LR%d piggyback for IRQ%d\n", lr, vlr.irq);
 			BUG_ON(!test_bit(lr, vgic_cpu->lr_used));
-			vlr.state |= LR_STATE_PENDING;
-			vgic_set_lr(vcpu, lr, vlr);
+			vgic_queue_irq_to_lr(vcpu, irq, lr, vlr);
 			return true;
 		}
 	}
@@ -994,11 +1165,8 @@ bool vgic_queue_irq(struct kvm_vcpu *vcpu, u8 sgi_source_id, int irq)
 
 	vlr.irq = irq;
 	vlr.source = sgi_source_id;
-	vlr.state = LR_STATE_PENDING;
-	if (!vgic_irq_is_edge(vcpu, irq))
-		vlr.state |= LR_EOI_INT;
-
-	vgic_set_lr(vcpu, lr, vlr);
+	vlr.state = 0;
+	vgic_queue_irq_to_lr(vcpu, irq, lr, vlr);
 
 	return true;
 }
@@ -1030,39 +1198,49 @@ static void __kvm_vgic_flush_hwstate(struct kvm_vcpu *vcpu)
 {
 	struct vgic_cpu *vgic_cpu = &vcpu->arch.vgic_cpu;
 	struct vgic_dist *dist = &vcpu->kvm->arch.vgic;
+	unsigned long *pa_percpu, *pa_shared;
 	int i, vcpu_id;
 	int overflow = 0;
+	int nr_shared = vgic_nr_shared_irqs(dist);
 
 	vcpu_id = vcpu->vcpu_id;
 
+	pa_percpu = vcpu->arch.vgic_cpu.pend_act_percpu;
+	pa_shared = vcpu->arch.vgic_cpu.pend_act_shared;
+
+	bitmap_or(pa_percpu, vgic_cpu->pending_percpu, vgic_cpu->active_percpu,
+		  VGIC_NR_PRIVATE_IRQS);
+	bitmap_or(pa_shared, vgic_cpu->pending_shared, vgic_cpu->active_shared,
+		  nr_shared);
 	/*
 	 * We may not have any pending interrupt, or the interrupts
 	 * may have been serviced from another vcpu. In all cases,
 	 * move along.
 	 */
-	if (!kvm_vgic_vcpu_pending_irq(vcpu)) {
-		pr_debug("CPU%d has no pending interrupt\n", vcpu_id);
+	if (!kvm_vgic_vcpu_pending_irq(vcpu) && !kvm_vgic_vcpu_active_irq(vcpu))
 		goto epilog;
-	}
 
 	/* SGIs */
-	for_each_set_bit(i, vgic_cpu->pending_percpu, VGIC_NR_SGIS) {
+	for_each_set_bit(i, pa_percpu, VGIC_NR_SGIS) {
 		if (!queue_sgi(vcpu, i))
 			overflow = 1;
 	}
 
 	/* PPIs */
-	for_each_set_bit_from(i, vgic_cpu->pending_percpu, VGIC_NR_PRIVATE_IRQS) {
+	for_each_set_bit_from(i, pa_percpu, VGIC_NR_PRIVATE_IRQS) {
 		if (!vgic_queue_hwirq(vcpu, i))
 			overflow = 1;
 	}
 
 	/* SPIs */
-	for_each_set_bit(i, vgic_cpu->pending_shared, vgic_nr_shared_irqs(dist)) {
+	for_each_set_bit(i, pa_shared, nr_shared) {
 		if (!vgic_queue_hwirq(vcpu, i + VGIC_NR_PRIVATE_IRQS))
 			overflow = 1;
 	}
 
+
+
+
 epilog:
 	if (overflow) {
 		vgic_enable_underflow(vcpu);
@@ -1081,7 +1259,9 @@ epilog:
 static bool vgic_process_maintenance(struct kvm_vcpu *vcpu)
 {
 	u32 status = vgic_get_interrupt_status(vcpu);
+	struct vgic_dist *dist = &vcpu->kvm->arch.vgic;
 	bool level_pending = false;
+	struct kvm *kvm = vcpu->kvm;
 
 	kvm_debug("STATUS = %08x\n", status);
 
@@ -1098,6 +1278,7 @@ static bool vgic_process_maintenance(struct kvm_vcpu *vcpu)
 			struct vgic_lr vlr = vgic_get_lr(vcpu, lr);
 			WARN_ON(vgic_irq_is_edge(vcpu, vlr.irq));
 
+			spin_lock(&dist->lock);
 			vgic_irq_clear_queued(vcpu, vlr.irq);
 			WARN_ON(vlr.state & LR_STATE_MASK);
 			vlr.state = 0;
@@ -1116,6 +1297,17 @@ static bool vgic_process_maintenance(struct kvm_vcpu *vcpu)
 			 */
 			vgic_dist_irq_clear_soft_pend(vcpu, vlr.irq);
 
+			/*
+			 * kvm_notify_acked_irq calls kvm_set_irq()
+			 * to reset the IRQ level. Need to release the
+			 * lock for kvm_set_irq to grab it.
+			 */
+			spin_unlock(&dist->lock);
+
+			kvm_notify_acked_irq(kvm, 0,
+					     vlr.irq - VGIC_NR_PRIVATE_IRQS);
+			spin_lock(&dist->lock);
+
 			/* Any additional pending interrupt? */
 			if (vgic_dist_irq_get_level(vcpu, vlr.irq)) {
 				vgic_cpu_irq_set(vcpu, vlr.irq);
@@ -1125,6 +1317,8 @@ static bool vgic_process_maintenance(struct kvm_vcpu *vcpu)
 				vgic_cpu_irq_clear(vcpu, vlr.irq);
 			}
 
+			spin_unlock(&dist->lock);
+
 			/*
 			 * Despite being EOIed, the LR may not have
 			 * been marked as empty.
@@ -1136,13 +1330,18 @@ static bool vgic_process_maintenance(struct kvm_vcpu *vcpu)
 	if (status & INT_STATUS_UNDERFLOW)
 		vgic_disable_underflow(vcpu);
 
+	/*
+	 * In the next iterations of the vcpu loop, if we sync the vgic state
+	 * after flushing it, but before entering the guest (this happens for
+	 * pending signals and vmid rollovers), then make sure we don't pick
+	 * up any old maintenance interrupts here.
+	 */
+	vgic_clear_eisr(vcpu);
+
 	return level_pending;
 }
 
-/*
- * Sync back the VGIC state after a guest run. The distributor lock is
- * needed so we don't get preempted in the middle of the state processing.
- */
+/* Sync back the VGIC state after a guest run */
 static void __kvm_vgic_sync_hwstate(struct kvm_vcpu *vcpu)
 {
 	struct vgic_cpu *vgic_cpu = &vcpu->arch.vgic_cpu;
@@ -1189,14 +1388,10 @@ void kvm_vgic_flush_hwstate(struct kvm_vcpu *vcpu)
 
 void kvm_vgic_sync_hwstate(struct kvm_vcpu *vcpu)
 {
-	struct vgic_dist *dist = &vcpu->kvm->arch.vgic;
-
 	if (!irqchip_in_kernel(vcpu->kvm))
 		return;
 
-	spin_lock(&dist->lock);
 	__kvm_vgic_sync_hwstate(vcpu);
-	spin_unlock(&dist->lock);
 }
 
 int kvm_vgic_vcpu_pending_irq(struct kvm_vcpu *vcpu)
@@ -1209,6 +1404,17 @@ int kvm_vgic_vcpu_pending_irq(struct kvm_vcpu *vcpu)
 	return test_bit(vcpu->vcpu_id, dist->irq_pending_on_cpu);
 }
 
+int kvm_vgic_vcpu_active_irq(struct kvm_vcpu *vcpu)
+{
+	struct vgic_dist *dist = &vcpu->kvm->arch.vgic;
+
+	if (!irqchip_in_kernel(vcpu->kvm))
+		return 0;
+
+	return test_bit(vcpu->vcpu_id, dist->irq_active_on_cpu);
+}
+
+
 void vgic_kick_vcpus(struct kvm *kvm)
 {
 	struct kvm_vcpu *vcpu;
@@ -1381,8 +1587,12 @@ void kvm_vgic_vcpu_destroy(struct kvm_vcpu *vcpu)
 	struct vgic_cpu *vgic_cpu = &vcpu->arch.vgic_cpu;
 
 	kfree(vgic_cpu->pending_shared);
+	kfree(vgic_cpu->active_shared);
+	kfree(vgic_cpu->pend_act_shared);
 	kfree(vgic_cpu->vgic_irq_lr_map);
 	vgic_cpu->pending_shared = NULL;
+	vgic_cpu->active_shared = NULL;
+	vgic_cpu->pend_act_shared = NULL;
 	vgic_cpu->vgic_irq_lr_map = NULL;
 }
 
@@ -1392,9 +1602,14 @@ static int vgic_vcpu_init_maps(struct kvm_vcpu *vcpu, int nr_irqs)
 
 	int sz = (nr_irqs - VGIC_NR_PRIVATE_IRQS) / 8;
 	vgic_cpu->pending_shared = kzalloc(sz, GFP_KERNEL);
+	vgic_cpu->active_shared = kzalloc(sz, GFP_KERNEL);
+	vgic_cpu->pend_act_shared = kzalloc(sz, GFP_KERNEL);
 	vgic_cpu->vgic_irq_lr_map = kmalloc(nr_irqs, GFP_KERNEL);
 
-	if (!vgic_cpu->pending_shared || !vgic_cpu->vgic_irq_lr_map) {
+	if (!vgic_cpu->pending_shared
+		|| !vgic_cpu->active_shared
+		|| !vgic_cpu->pend_act_shared
+		|| !vgic_cpu->vgic_irq_lr_map) {
 		kvm_vgic_vcpu_destroy(vcpu);
 		return -ENOMEM;
 	}
@@ -1447,10 +1662,12 @@ void kvm_vgic_destroy(struct kvm *kvm)
 	kfree(dist->irq_spi_mpidr);
 	kfree(dist->irq_spi_target);
 	kfree(dist->irq_pending_on_cpu);
+	kfree(dist->irq_active_on_cpu);
 	dist->irq_sgi_sources = NULL;
 	dist->irq_spi_cpu = NULL;
 	dist->irq_spi_target = NULL;
 	dist->irq_pending_on_cpu = NULL;
+	dist->irq_active_on_cpu = NULL;
 	dist->nr_cpus = 0;
 }
 
@@ -1486,6 +1703,7 @@ int vgic_init(struct kvm *kvm)
 	ret |= vgic_init_bitmap(&dist->irq_pending, nr_cpus, nr_irqs);
 	ret |= vgic_init_bitmap(&dist->irq_soft_pend, nr_cpus, nr_irqs);
 	ret |= vgic_init_bitmap(&dist->irq_queued, nr_cpus, nr_irqs);
+	ret |= vgic_init_bitmap(&dist->irq_active, nr_cpus, nr_irqs);
 	ret |= vgic_init_bitmap(&dist->irq_cfg, nr_cpus, nr_irqs);
 	ret |= vgic_init_bytemap(&dist->irq_priority, nr_cpus, nr_irqs);
 
@@ -1498,10 +1716,13 @@ int vgic_init(struct kvm *kvm)
 				       GFP_KERNEL);
 	dist->irq_pending_on_cpu = kzalloc(BITS_TO_LONGS(nr_cpus) * sizeof(long),
 					   GFP_KERNEL);
+	dist->irq_active_on_cpu = kzalloc(BITS_TO_LONGS(nr_cpus) * sizeof(long),
+					   GFP_KERNEL);
 	if (!dist->irq_sgi_sources ||
 	    !dist->irq_spi_cpu ||
 	    !dist->irq_spi_target ||
-	    !dist->irq_pending_on_cpu) {
+	    !dist->irq_pending_on_cpu ||
+	    !dist->irq_active_on_cpu) {
 		ret = -ENOMEM;
 		goto out;
 	}
@@ -1583,8 +1804,10 @@ int kvm_vgic_create(struct kvm *kvm, u32 type)
 	 * emulation. So check this here again. KVM_CREATE_DEVICE does
 	 * the proper checks already.
 	 */
-	if (type == KVM_DEV_TYPE_ARM_VGIC_V2 && !vgic->can_emulate_gicv2)
-		return -ENODEV;
+	if (type == KVM_DEV_TYPE_ARM_VGIC_V2 && !vgic->can_emulate_gicv2) {
+		ret = -ENODEV;
+		goto out;
+	}
 
 	/*
 	 * Any time a vcpu is run, vcpu_load is called which tries to grab the
@@ -1827,12 +2050,9 @@ int vgic_get_common_attr(struct kvm_device *dev, struct kvm_device_attr *attr)
 	return r;
 }
 
-int vgic_has_attr_regs(const struct kvm_mmio_range *ranges, phys_addr_t offset)
+int vgic_has_attr_regs(const struct vgic_io_range *ranges, phys_addr_t offset)
 {
-	struct kvm_exit_mmio dev_attr_mmio;
-
-	dev_attr_mmio.len = 4;
-	if (vgic_find_range(ranges, &dev_attr_mmio, offset))
+	if (vgic_find_range(ranges, 4, offset))
 		return 0;
 	else
 		return -ENXIO;
@@ -1865,8 +2085,10 @@ static struct notifier_block vgic_cpu_nb = {
 };
 
 static const struct of_device_id vgic_ids[] = {
-	{ .compatible = "arm,cortex-a15-gic", .data = vgic_v2_probe, },
-	{ .compatible = "arm,gic-v3", .data = vgic_v3_probe, },
+	{ .compatible = "arm,cortex-a15-gic",	.data = vgic_v2_probe, },
+	{ .compatible = "arm,cortex-a7-gic",	.data = vgic_v2_probe, },
+	{ .compatible = "arm,gic-400",		.data = vgic_v2_probe, },
+	{ .compatible = "arm,gic-v3",		.data = vgic_v3_probe, },
 	{},
 };
 
@@ -1914,3 +2136,38 @@ out_free_irq:
 	free_percpu_irq(vgic->maint_irq, kvm_get_running_vcpus());
 	return ret;
 }
+
+int kvm_irq_map_gsi(struct kvm *kvm,
+		    struct kvm_kernel_irq_routing_entry *entries,
+		    int gsi)
+{
+	return gsi;
+}
+
+int kvm_irq_map_chip_pin(struct kvm *kvm, unsigned irqchip, unsigned pin)
+{
+	return pin;
+}
+
+int kvm_set_irq(struct kvm *kvm, int irq_source_id,
+		u32 irq, int level, bool line_status)
+{
+	unsigned int spi = irq + VGIC_NR_PRIVATE_IRQS;
+
+	trace_kvm_set_irq(irq, level, irq_source_id);
+
+	BUG_ON(!vgic_initialized(kvm));
+
+	if (spi > kvm->arch.vgic.nr_irqs)
+		return -EINVAL;
+	return kvm_vgic_inject_irq(kvm, 0, spi, level);
+
+}
+
+/* MSI not implemented yet */
+int kvm_set_msi(struct kvm_kernel_irq_routing_entry *e,
+		struct kvm *kvm, int irq_source_id,
+		int level, bool line_status)
+{
+	return 0;
+}
diff --git a/virt/kvm/arm/vgic.h b/virt/kvm/arm/vgic.h
index 1e83bdf..0df74cb 100644
--- a/virt/kvm/arm/vgic.h
+++ b/virt/kvm/arm/vgic.h
@@ -20,6 +20,8 @@
 #ifndef __KVM_VGIC_H__
 #define __KVM_VGIC_H__
 
+#include <kvm/iodev.h>
+
 #define VGIC_ADDR_UNDEF		(-1)
 #define IS_VGIC_ADDR_UNDEF(_x)  ((_x) == VGIC_ADDR_UNDEF)
 
@@ -57,6 +59,14 @@ void vgic_set_vmcr(struct kvm_vcpu *vcpu, struct vgic_vmcr *vmcr);
 bool vgic_queue_irq(struct kvm_vcpu *vcpu, u8 sgi_source_id, int irq);
 void vgic_unqueue_irqs(struct kvm_vcpu *vcpu);
 
+struct kvm_exit_mmio {
+	phys_addr_t	phys_addr;
+	void		*data;
+	u32		len;
+	bool		is_write;
+	void		*private;
+};
+
 void vgic_reg_access(struct kvm_exit_mmio *mmio, u32 *reg,
 		     phys_addr_t offset, int mode);
 bool handle_mmio_raz_wi(struct kvm_vcpu *vcpu, struct kvm_exit_mmio *mmio,
@@ -74,7 +84,7 @@ void mmio_data_write(struct kvm_exit_mmio *mmio, u32 mask, u32 value)
 	*((u32 *)mmio->data) = cpu_to_le32(value) & mask;
 }
 
-struct kvm_mmio_range {
+struct vgic_io_range {
 	phys_addr_t base;
 	unsigned long len;
 	int bits_per_irq;
@@ -82,6 +92,11 @@ struct kvm_mmio_range {
 			    phys_addr_t offset);
 };
 
+int vgic_register_kvm_io_dev(struct kvm *kvm, gpa_t base, int len,
+			     const struct vgic_io_range *ranges,
+			     int redist_id,
+			     struct vgic_io_device *iodev);
+
 static inline bool is_in_range(phys_addr_t addr, unsigned long len,
 			       phys_addr_t baseaddr, unsigned long size)
 {
@@ -89,14 +104,8 @@ static inline bool is_in_range(phys_addr_t addr, unsigned long len,
 }
 
 const
-struct kvm_mmio_range *vgic_find_range(const struct kvm_mmio_range *ranges,
-				       struct kvm_exit_mmio *mmio,
-				       phys_addr_t offset);
-
-bool vgic_handle_mmio_range(struct kvm_vcpu *vcpu, struct kvm_run *run,
-			    struct kvm_exit_mmio *mmio,
-			    const struct kvm_mmio_range *ranges,
-			    unsigned long mmio_base);
+struct vgic_io_range *vgic_find_range(const struct vgic_io_range *ranges,
+				      int len, gpa_t offset);
 
 bool vgic_handle_enable_reg(struct kvm *kvm, struct kvm_exit_mmio *mmio,
 			    phys_addr_t offset, int vcpu_id, int access);
@@ -107,12 +116,20 @@ bool vgic_handle_set_pending_reg(struct kvm *kvm, struct kvm_exit_mmio *mmio,
 bool vgic_handle_clear_pending_reg(struct kvm *kvm, struct kvm_exit_mmio *mmio,
 				   phys_addr_t offset, int vcpu_id);
 
+bool vgic_handle_set_active_reg(struct kvm *kvm,
+				struct kvm_exit_mmio *mmio,
+				phys_addr_t offset, int vcpu_id);
+
+bool vgic_handle_clear_active_reg(struct kvm *kvm,
+				  struct kvm_exit_mmio *mmio,
+				  phys_addr_t offset, int vcpu_id);
+
 bool vgic_handle_cfg_reg(u32 *reg, struct kvm_exit_mmio *mmio,
 			 phys_addr_t offset);
 
 void vgic_kick_vcpus(struct kvm *kvm);
 
-int vgic_has_attr_regs(const struct kvm_mmio_range *ranges, phys_addr_t offset);
+int vgic_has_attr_regs(const struct vgic_io_range *ranges, phys_addr_t offset);
 int vgic_set_common_attr(struct kvm_device *dev, struct kvm_device_attr *attr);
 int vgic_get_common_attr(struct kvm_device *dev, struct kvm_device_attr *attr);
 
diff --git a/virt/kvm/coalesced_mmio.c b/virt/kvm/coalesced_mmio.c
index 00d8642..571c1ce 100644
--- a/virt/kvm/coalesced_mmio.c
+++ b/virt/kvm/coalesced_mmio.c
@@ -8,7 +8,7 @@
  *
  */
 
-#include "iodev.h"
+#include <kvm/iodev.h>
 
 #include <linux/kvm_host.h>
 #include <linux/slab.h>
@@ -60,8 +60,9 @@ static int coalesced_mmio_has_room(struct kvm_coalesced_mmio_dev *dev)
 	return 1;
 }
 
-static int coalesced_mmio_write(struct kvm_io_device *this,
-				gpa_t addr, int len, const void *val)
+static int coalesced_mmio_write(struct kvm_vcpu *vcpu,
+				struct kvm_io_device *this, gpa_t addr,
+				int len, const void *val)
 {
 	struct kvm_coalesced_mmio_dev *dev = to_mmio(this);
 	struct kvm_coalesced_mmio_ring *ring = dev->kvm->coalesced_mmio_ring;
diff --git a/virt/kvm/eventfd.c b/virt/kvm/eventfd.c
index 148b239..9ff4193 100644
--- a/virt/kvm/eventfd.c
+++ b/virt/kvm/eventfd.c
@@ -36,7 +36,7 @@
 #include <linux/seqlock.h>
 #include <trace/events/kvm.h>
 
-#include "iodev.h"
+#include <kvm/iodev.h>
 
 #ifdef CONFIG_HAVE_KVM_IRQFD
 /*
@@ -311,6 +311,9 @@ kvm_irqfd_assign(struct kvm *kvm, struct kvm_irqfd *args)
 	unsigned int events;
 	int idx;
 
+	if (!kvm_arch_intc_initialized(kvm))
+		return -EAGAIN;
+
 	irqfd = kzalloc(sizeof(*irqfd), GFP_KERNEL);
 	if (!irqfd)
 		return -ENOMEM;
@@ -712,8 +715,8 @@ ioeventfd_in_range(struct _ioeventfd *p, gpa_t addr, int len, const void *val)
 
 /* MMIO/PIO writes trigger an event if the addr/val match */
 static int
-ioeventfd_write(struct kvm_io_device *this, gpa_t addr, int len,
-		const void *val)
+ioeventfd_write(struct kvm_vcpu *vcpu, struct kvm_io_device *this, gpa_t addr,
+		int len, const void *val)
 {
 	struct _ioeventfd *p = to_ioeventfd(this);
 
diff --git a/virt/kvm/irqchip.c b/virt/kvm/irqchip.c
index 7f256f3..1d56a90 100644
--- a/virt/kvm/irqchip.c
+++ b/virt/kvm/irqchip.c
@@ -105,7 +105,7 @@ int kvm_set_irq(struct kvm *kvm, int irq_source_id, u32 irq, int level,
 	i = kvm_irq_map_gsi(kvm, irq_set, irq);
 	srcu_read_unlock(&kvm->irq_srcu, idx);
 
-	while(i--) {
+	while (i--) {
 		int r;
 		r = irq_set[i].set(&irq_set[i], kvm, irq_source_id, level,
 				   line_status);
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index a109370..d3fc939 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -16,7 +16,7 @@
  *
  */
 
-#include "iodev.h"
+#include <kvm/iodev.h>
 
 #include <linux/kvm_host.h>
 #include <linux/kvm.h>
@@ -66,13 +66,13 @@
 MODULE_AUTHOR("Qumranet");
 MODULE_LICENSE("GPL");
 
-unsigned int halt_poll_ns = 0;
+static unsigned int halt_poll_ns;
 module_param(halt_poll_ns, uint, S_IRUGO | S_IWUSR);
 
 /*
  * Ordering of locks:
  *
- * 		kvm->lock --> kvm->slots_lock --> kvm->irq_lock
+ *	kvm->lock --> kvm->slots_lock --> kvm->irq_lock
  */
 
 DEFINE_SPINLOCK(kvm_lock);
@@ -80,7 +80,7 @@ static DEFINE_RAW_SPINLOCK(kvm_count_lock);
 LIST_HEAD(vm_list);
 
 static cpumask_var_t cpus_hardware_enabled;
-static int kvm_usage_count = 0;
+static int kvm_usage_count;
 static atomic_t hardware_enable_failed;
 
 struct kmem_cache *kvm_vcpu_cache;
@@ -471,7 +471,7 @@ static struct kvm *kvm_create_vm(unsigned long type)
 	BUILD_BUG_ON(KVM_MEM_SLOTS_NUM > SHRT_MAX);
 
 	r = -ENOMEM;
-	kvm->memslots = kzalloc(sizeof(struct kvm_memslots), GFP_KERNEL);
+	kvm->memslots = kvm_kvzalloc(sizeof(struct kvm_memslots));
 	if (!kvm->memslots)
 		goto out_err_no_srcu;
 
@@ -522,7 +522,7 @@ out_err_no_srcu:
 out_err_no_disable:
 	for (i = 0; i < KVM_NR_BUSES; i++)
 		kfree(kvm->buses[i]);
-	kfree(kvm->memslots);
+	kvfree(kvm->memslots);
 	kvm_arch_free_vm(kvm);
 	return ERR_PTR(r);
 }
@@ -539,20 +539,12 @@ void *kvm_kvzalloc(unsigned long size)
 		return kzalloc(size, GFP_KERNEL);
 }
 
-void kvm_kvfree(const void *addr)
-{
-	if (is_vmalloc_addr(addr))
-		vfree(addr);
-	else
-		kfree(addr);
-}
-
 static void kvm_destroy_dirty_bitmap(struct kvm_memory_slot *memslot)
 {
 	if (!memslot->dirty_bitmap)
 		return;
 
-	kvm_kvfree(memslot->dirty_bitmap);
+	kvfree(memslot->dirty_bitmap);
 	memslot->dirty_bitmap = NULL;
 }
 
@@ -578,7 +570,7 @@ static void kvm_free_physmem(struct kvm *kvm)
 	kvm_for_each_memslot(memslot, slots)
 		kvm_free_physmem_slot(kvm, memslot, NULL);
 
-	kfree(kvm->memslots);
+	kvfree(kvm->memslots);
 }
 
 static void kvm_destroy_devices(struct kvm *kvm)
@@ -871,10 +863,10 @@ int __kvm_set_memory_region(struct kvm *kvm,
 			goto out_free;
 	}
 
-	slots = kmemdup(kvm->memslots, sizeof(struct kvm_memslots),
-			GFP_KERNEL);
+	slots = kvm_kvzalloc(sizeof(struct kvm_memslots));
 	if (!slots)
 		goto out_free;
+	memcpy(slots, kvm->memslots, sizeof(struct kvm_memslots));
 
 	if ((change == KVM_MR_DELETE) || (change == KVM_MR_MOVE)) {
 		slot = id_to_memslot(slots, mem->slot);
@@ -888,8 +880,8 @@ int __kvm_set_memory_region(struct kvm *kvm,
 		 * or moved, memslot will be created.
 		 *
 		 * validation of sp->gfn happens in:
-		 * 	- gfn_to_hva (kvm_read_guest, gfn_to_pfn)
-		 * 	- kvm_is_visible_gfn (mmu_check_roots)
+		 *	- gfn_to_hva (kvm_read_guest, gfn_to_pfn)
+		 *	- kvm_is_visible_gfn (mmu_check_roots)
 		 */
 		kvm_arch_flush_shadow_memslot(kvm, slot);
 
@@ -917,7 +909,7 @@ int __kvm_set_memory_region(struct kvm *kvm,
 	kvm_arch_commit_memory_region(kvm, mem, &old, change);
 
 	kvm_free_physmem_slot(kvm, &old, &new);
-	kfree(old_memslots);
+	kvfree(old_memslots);
 
 	/*
 	 * IOMMU mapping:  New slots need to be mapped.  Old slots need to be
@@ -936,7 +928,7 @@ int __kvm_set_memory_region(struct kvm *kvm,
 	return 0;
 
 out_slots:
-	kfree(slots);
+	kvfree(slots);
 out_free:
 	kvm_free_physmem_slot(kvm, &new, &old);
 out:
@@ -1061,9 +1053,11 @@ int kvm_get_dirty_log_protect(struct kvm *kvm,
 		mask = xchg(&dirty_bitmap[i], 0);
 		dirty_bitmap_buffer[i] = mask;
 
-		offset = i * BITS_PER_LONG;
-		kvm_arch_mmu_enable_log_dirty_pt_masked(kvm, memslot, offset,
-								mask);
+		if (mask) {
+			offset = i * BITS_PER_LONG;
+			kvm_arch_mmu_enable_log_dirty_pt_masked(kvm, memslot,
+								offset, mask);
+		}
 	}
 
 	spin_unlock(&kvm->mmu_lock);
@@ -1193,16 +1187,6 @@ unsigned long gfn_to_hva_prot(struct kvm *kvm, gfn_t gfn, bool *writable)
 	return gfn_to_hva_memslot_prot(slot, gfn, writable);
 }
 
-static int kvm_read_hva(void *data, void __user *hva, int len)
-{
-	return __copy_from_user(data, hva, len);
-}
-
-static int kvm_read_hva_atomic(void *data, void __user *hva, int len)
-{
-	return __copy_from_user_inatomic(data, hva, len);
-}
-
 static int get_user_page_nowait(struct task_struct *tsk, struct mm_struct *mm,
 	unsigned long start, int write, struct page **page)
 {
@@ -1481,7 +1465,6 @@ struct page *gfn_to_page(struct kvm *kvm, gfn_t gfn)
 
 	return kvm_pfn_to_page(pfn);
 }
-
 EXPORT_SYMBOL_GPL(gfn_to_page);
 
 void kvm_release_page_clean(struct page *page)
@@ -1517,6 +1500,7 @@ void kvm_set_pfn_dirty(pfn_t pfn)
 {
 	if (!kvm_is_reserved_pfn(pfn)) {
 		struct page *page = pfn_to_page(pfn);
+
 		if (!PageReserved(page))
 			SetPageDirty(page);
 	}
@@ -1554,7 +1538,7 @@ int kvm_read_guest_page(struct kvm *kvm, gfn_t gfn, void *data, int offset,
 	addr = gfn_to_hva_prot(kvm, gfn, NULL);
 	if (kvm_is_error_hva(addr))
 		return -EFAULT;
-	r = kvm_read_hva(data, (void __user *)addr + offset, len);
+	r = __copy_from_user(data, (void __user *)addr + offset, len);
 	if (r)
 		return -EFAULT;
 	return 0;
@@ -1593,7 +1577,7 @@ int kvm_read_guest_atomic(struct kvm *kvm, gpa_t gpa, void *data,
 	if (kvm_is_error_hva(addr))
 		return -EFAULT;
 	pagefault_disable();
-	r = kvm_read_hva_atomic(data, (void __user *)addr + offset, len);
+	r = __copy_from_user_inatomic(data, (void __user *)addr + offset, len);
 	pagefault_enable();
 	if (r)
 		return -EFAULT;
@@ -1653,8 +1637,8 @@ int kvm_gfn_to_hva_cache_init(struct kvm *kvm, struct gfn_to_hva_cache *ghc,
 	ghc->generation = slots->generation;
 	ghc->len = len;
 	ghc->memslot = gfn_to_memslot(kvm, start_gfn);
-	ghc->hva = gfn_to_hva_many(ghc->memslot, start_gfn, &nr_pages_avail);
-	if (!kvm_is_error_hva(ghc->hva) && nr_pages_avail >= nr_pages_needed) {
+	ghc->hva = gfn_to_hva_many(ghc->memslot, start_gfn, NULL);
+	if (!kvm_is_error_hva(ghc->hva) && nr_pages_needed <= 1) {
 		ghc->hva += offset;
 	} else {
 		/*
@@ -1742,7 +1726,7 @@ int kvm_clear_guest(struct kvm *kvm, gpa_t gpa, unsigned long len)
 	int offset = offset_in_page(gpa);
 	int ret;
 
-        while ((seg = next_segment(len, offset)) != 0) {
+	while ((seg = next_segment(len, offset)) != 0) {
 		ret = kvm_clear_guest_page(kvm, gfn, offset, seg);
 		if (ret < 0)
 			return ret;
@@ -1800,6 +1784,7 @@ void kvm_vcpu_block(struct kvm_vcpu *vcpu)
 	start = cur = ktime_get();
 	if (halt_poll_ns) {
 		ktime_t stop = ktime_add_ns(ktime_get(), halt_poll_ns);
+
 		do {
 			/*
 			 * This sets KVM_REQ_UNHALT if an interrupt
@@ -2118,7 +2103,7 @@ static long kvm_vcpu_ioctl(struct file *filp,
 	 * Special cases: vcpu ioctls that are asynchronous to vcpu execution,
 	 * so vcpu_load() would break it.
 	 */
-	if (ioctl == KVM_S390_INTERRUPT || ioctl == KVM_INTERRUPT)
+	if (ioctl == KVM_S390_INTERRUPT || ioctl == KVM_S390_IRQ || ioctl == KVM_INTERRUPT)
 		return kvm_arch_vcpu_ioctl(filp, ioctl, arg);
 #endif
 
@@ -2135,6 +2120,7 @@ static long kvm_vcpu_ioctl(struct file *filp,
 			/* The thread running this VCPU changed. */
 			struct pid *oldpid = vcpu->pid;
 			struct pid *newpid = get_task_pid(current, PIDTYPE_PID);
+
 			rcu_assign_pointer(vcpu->pid, newpid);
 			if (oldpid)
 				synchronize_rcu();
@@ -2205,7 +2191,7 @@ out_free1:
 		if (r)
 			goto out;
 		r = -EFAULT;
-		if (copy_to_user(argp, &mp_state, sizeof mp_state))
+		if (copy_to_user(argp, &mp_state, sizeof(mp_state)))
 			goto out;
 		r = 0;
 		break;
@@ -2214,7 +2200,7 @@ out_free1:
 		struct kvm_mp_state mp_state;
 
 		r = -EFAULT;
-		if (copy_from_user(&mp_state, argp, sizeof mp_state))
+		if (copy_from_user(&mp_state, argp, sizeof(mp_state)))
 			goto out;
 		r = kvm_arch_vcpu_ioctl_set_mpstate(vcpu, &mp_state);
 		break;
@@ -2223,13 +2209,13 @@ out_free1:
 		struct kvm_translation tr;
 
 		r = -EFAULT;
-		if (copy_from_user(&tr, argp, sizeof tr))
+		if (copy_from_user(&tr, argp, sizeof(tr)))
 			goto out;
 		r = kvm_arch_vcpu_ioctl_translate(vcpu, &tr);
 		if (r)
 			goto out;
 		r = -EFAULT;
-		if (copy_to_user(argp, &tr, sizeof tr))
+		if (copy_to_user(argp, &tr, sizeof(tr)))
 			goto out;
 		r = 0;
 		break;
@@ -2238,7 +2224,7 @@ out_free1:
 		struct kvm_guest_debug dbg;
 
 		r = -EFAULT;
-		if (copy_from_user(&dbg, argp, sizeof dbg))
+		if (copy_from_user(&dbg, argp, sizeof(dbg)))
 			goto out;
 		r = kvm_arch_vcpu_ioctl_set_guest_debug(vcpu, &dbg);
 		break;
@@ -2252,14 +2238,14 @@ out_free1:
 		if (argp) {
 			r = -EFAULT;
 			if (copy_from_user(&kvm_sigmask, argp,
-					   sizeof kvm_sigmask))
+					   sizeof(kvm_sigmask)))
 				goto out;
 			r = -EINVAL;
-			if (kvm_sigmask.len != sizeof sigset)
+			if (kvm_sigmask.len != sizeof(sigset))
 				goto out;
 			r = -EFAULT;
 			if (copy_from_user(&sigset, sigmask_arg->sigset,
-					   sizeof sigset))
+					   sizeof(sigset)))
 				goto out;
 			p = &sigset;
 		}
@@ -2321,14 +2307,14 @@ static long kvm_vcpu_compat_ioctl(struct file *filp,
 		if (argp) {
 			r = -EFAULT;
 			if (copy_from_user(&kvm_sigmask, argp,
-					   sizeof kvm_sigmask))
+					   sizeof(kvm_sigmask)))
 				goto out;
 			r = -EINVAL;
-			if (kvm_sigmask.len != sizeof csigset)
+			if (kvm_sigmask.len != sizeof(csigset))
 				goto out;
 			r = -EFAULT;
 			if (copy_from_user(&csigset, sigmask_arg->sigset,
-					   sizeof csigset))
+					   sizeof(csigset)))
 				goto out;
 			sigset_from_compat(&sigset, &csigset);
 			r = kvm_vcpu_ioctl_set_sigmask(vcpu, &sigset);
@@ -2492,6 +2478,7 @@ static long kvm_vm_ioctl_check_extension_generic(struct kvm *kvm, long arg)
 	case KVM_CAP_SIGNAL_MSI:
 #endif
 #ifdef CONFIG_HAVE_KVM_IRQFD
+	case KVM_CAP_IRQFD:
 	case KVM_CAP_IRQFD_RESAMPLE:
 #endif
 	case KVM_CAP_CHECK_EXTENSION_VM:
@@ -2524,7 +2511,7 @@ static long kvm_vm_ioctl(struct file *filp,
 
 		r = -EFAULT;
 		if (copy_from_user(&kvm_userspace_mem, argp,
-						sizeof kvm_userspace_mem))
+						sizeof(kvm_userspace_mem)))
 			goto out;
 
 		r = kvm_vm_ioctl_set_memory_region(kvm, &kvm_userspace_mem);
@@ -2534,7 +2521,7 @@ static long kvm_vm_ioctl(struct file *filp,
 		struct kvm_dirty_log log;
 
 		r = -EFAULT;
-		if (copy_from_user(&log, argp, sizeof log))
+		if (copy_from_user(&log, argp, sizeof(log)))
 			goto out;
 		r = kvm_vm_ioctl_get_dirty_log(kvm, &log);
 		break;
@@ -2542,16 +2529,18 @@ static long kvm_vm_ioctl(struct file *filp,
 #ifdef KVM_COALESCED_MMIO_PAGE_OFFSET
 	case KVM_REGISTER_COALESCED_MMIO: {
 		struct kvm_coalesced_mmio_zone zone;
+
 		r = -EFAULT;
-		if (copy_from_user(&zone, argp, sizeof zone))
+		if (copy_from_user(&zone, argp, sizeof(zone)))
 			goto out;
 		r = kvm_vm_ioctl_register_coalesced_mmio(kvm, &zone);
 		break;
 	}
 	case KVM_UNREGISTER_COALESCED_MMIO: {
 		struct kvm_coalesced_mmio_zone zone;
+
 		r = -EFAULT;
-		if (copy_from_user(&zone, argp, sizeof zone))
+		if (copy_from_user(&zone, argp, sizeof(zone)))
 			goto out;
 		r = kvm_vm_ioctl_unregister_coalesced_mmio(kvm, &zone);
 		break;
@@ -2561,7 +2550,7 @@ static long kvm_vm_ioctl(struct file *filp,
 		struct kvm_irqfd data;
 
 		r = -EFAULT;
-		if (copy_from_user(&data, argp, sizeof data))
+		if (copy_from_user(&data, argp, sizeof(data)))
 			goto out;
 		r = kvm_irqfd(kvm, &data);
 		break;
@@ -2570,7 +2559,7 @@ static long kvm_vm_ioctl(struct file *filp,
 		struct kvm_ioeventfd data;
 
 		r = -EFAULT;
-		if (copy_from_user(&data, argp, sizeof data))
+		if (copy_from_user(&data, argp, sizeof(data)))
 			goto out;
 		r = kvm_ioeventfd(kvm, &data);
 		break;
@@ -2591,7 +2580,7 @@ static long kvm_vm_ioctl(struct file *filp,
 		struct kvm_msi msi;
 
 		r = -EFAULT;
-		if (copy_from_user(&msi, argp, sizeof msi))
+		if (copy_from_user(&msi, argp, sizeof(msi)))
 			goto out;
 		r = kvm_send_userspace_msi(kvm, &msi);
 		break;
@@ -2603,7 +2592,7 @@ static long kvm_vm_ioctl(struct file *filp,
 		struct kvm_irq_level irq_event;
 
 		r = -EFAULT;
-		if (copy_from_user(&irq_event, argp, sizeof irq_event))
+		if (copy_from_user(&irq_event, argp, sizeof(irq_event)))
 			goto out;
 
 		r = kvm_vm_ioctl_irq_line(kvm, &irq_event,
@@ -2613,7 +2602,7 @@ static long kvm_vm_ioctl(struct file *filp,
 
 		r = -EFAULT;
 		if (ioctl == KVM_IRQ_LINE_STATUS) {
-			if (copy_to_user(argp, &irq_event, sizeof irq_event))
+			if (copy_to_user(argp, &irq_event, sizeof(irq_event)))
 				goto out;
 		}
 
@@ -2646,7 +2635,7 @@ static long kvm_vm_ioctl(struct file *filp,
 			goto out_free_irq_routing;
 		r = kvm_set_irq_routing(kvm, entries, routing.nr,
 					routing.flags);
-	out_free_irq_routing:
+out_free_irq_routing:
 		vfree(entries);
 		break;
 	}
@@ -2821,8 +2810,7 @@ static void hardware_enable_nolock(void *junk)
 	if (r) {
 		cpumask_clear_cpu(cpu, cpus_hardware_enabled);
 		atomic_inc(&hardware_enable_failed);
-		printk(KERN_INFO "kvm: enabling virtualization on "
-				 "CPU%d failed\n", cpu);
+		pr_info("kvm: enabling virtualization on CPU%d failed\n", cpu);
 	}
 }
 
@@ -2898,12 +2886,12 @@ static int kvm_cpu_hotplug(struct notifier_block *notifier, unsigned long val,
 	val &= ~CPU_TASKS_FROZEN;
 	switch (val) {
 	case CPU_DYING:
-		printk(KERN_INFO "kvm: disabling virtualization on CPU%d\n",
+		pr_info("kvm: disabling virtualization on CPU%d\n",
 		       cpu);
 		hardware_disable();
 		break;
 	case CPU_STARTING:
-		printk(KERN_INFO "kvm: enabling virtualization on CPU%d\n",
+		pr_info("kvm: enabling virtualization on CPU%d\n",
 		       cpu);
 		hardware_enable();
 		break;
@@ -2920,7 +2908,7 @@ static int kvm_reboot(struct notifier_block *notifier, unsigned long val,
 	 *
 	 * And Intel TXT required VMX off for all cpu when system shutdown.
 	 */
-	printk(KERN_INFO "kvm: exiting hardware virtualization\n");
+	pr_info("kvm: exiting hardware virtualization\n");
 	kvm_rebooting = true;
 	on_each_cpu(hardware_disable_nolock, NULL, 1);
 	return NOTIFY_OK;
@@ -2944,7 +2932,7 @@ static void kvm_io_bus_destroy(struct kvm_io_bus *bus)
 }
 
 static inline int kvm_io_bus_cmp(const struct kvm_io_range *r1,
-                                 const struct kvm_io_range *r2)
+				 const struct kvm_io_range *r2)
 {
 	if (r1->addr < r2->addr)
 		return -1;
@@ -2997,7 +2985,7 @@ static int kvm_io_bus_get_first_dev(struct kvm_io_bus *bus,
 	return off;
 }
 
-static int __kvm_io_bus_write(struct kvm_io_bus *bus,
+static int __kvm_io_bus_write(struct kvm_vcpu *vcpu, struct kvm_io_bus *bus,
 			      struct kvm_io_range *range, const void *val)
 {
 	int idx;
@@ -3008,7 +2996,7 @@ static int __kvm_io_bus_write(struct kvm_io_bus *bus,
 
 	while (idx < bus->dev_count &&
 		kvm_io_bus_cmp(range, &bus->range[idx]) == 0) {
-		if (!kvm_iodevice_write(bus->range[idx].dev, range->addr,
+		if (!kvm_iodevice_write(vcpu, bus->range[idx].dev, range->addr,
 					range->len, val))
 			return idx;
 		idx++;
@@ -3018,7 +3006,7 @@ static int __kvm_io_bus_write(struct kvm_io_bus *bus,
 }
 
 /* kvm_io_bus_write - called under kvm->slots_lock */
-int kvm_io_bus_write(struct kvm *kvm, enum kvm_bus bus_idx, gpa_t addr,
+int kvm_io_bus_write(struct kvm_vcpu *vcpu, enum kvm_bus bus_idx, gpa_t addr,
 		     int len, const void *val)
 {
 	struct kvm_io_bus *bus;
@@ -3030,14 +3018,14 @@ int kvm_io_bus_write(struct kvm *kvm, enum kvm_bus bus_idx, gpa_t addr,
 		.len = len,
 	};
 
-	bus = srcu_dereference(kvm->buses[bus_idx], &kvm->srcu);
-	r = __kvm_io_bus_write(bus, &range, val);
+	bus = srcu_dereference(vcpu->kvm->buses[bus_idx], &vcpu->kvm->srcu);
+	r = __kvm_io_bus_write(vcpu, bus, &range, val);
 	return r < 0 ? r : 0;
 }
 
 /* kvm_io_bus_write_cookie - called under kvm->slots_lock */
-int kvm_io_bus_write_cookie(struct kvm *kvm, enum kvm_bus bus_idx, gpa_t addr,
-			    int len, const void *val, long cookie)
+int kvm_io_bus_write_cookie(struct kvm_vcpu *vcpu, enum kvm_bus bus_idx,
+			    gpa_t addr, int len, const void *val, long cookie)
 {
 	struct kvm_io_bus *bus;
 	struct kvm_io_range range;
@@ -3047,12 +3035,12 @@ int kvm_io_bus_write_cookie(struct kvm *kvm, enum kvm_bus bus_idx, gpa_t addr,
 		.len = len,
 	};
 
-	bus = srcu_dereference(kvm->buses[bus_idx], &kvm->srcu);
+	bus = srcu_dereference(vcpu->kvm->buses[bus_idx], &vcpu->kvm->srcu);
 
 	/* First try the device referenced by cookie. */
 	if ((cookie >= 0) && (cookie < bus->dev_count) &&
 	    (kvm_io_bus_cmp(&range, &bus->range[cookie]) == 0))
-		if (!kvm_iodevice_write(bus->range[cookie].dev, addr, len,
+		if (!kvm_iodevice_write(vcpu, bus->range[cookie].dev, addr, len,
 					val))
 			return cookie;
 
@@ -3060,11 +3048,11 @@ int kvm_io_bus_write_cookie(struct kvm *kvm, enum kvm_bus bus_idx, gpa_t addr,
 	 * cookie contained garbage; fall back to search and return the
 	 * correct cookie value.
 	 */
-	return __kvm_io_bus_write(bus, &range, val);
+	return __kvm_io_bus_write(vcpu, bus, &range, val);
 }
 
-static int __kvm_io_bus_read(struct kvm_io_bus *bus, struct kvm_io_range *range,
-			     void *val)
+static int __kvm_io_bus_read(struct kvm_vcpu *vcpu, struct kvm_io_bus *bus,
+			     struct kvm_io_range *range, void *val)
 {
 	int idx;
 
@@ -3074,7 +3062,7 @@ static int __kvm_io_bus_read(struct kvm_io_bus *bus, struct kvm_io_range *range,
 
 	while (idx < bus->dev_count &&
 		kvm_io_bus_cmp(range, &bus->range[idx]) == 0) {
-		if (!kvm_iodevice_read(bus->range[idx].dev, range->addr,
+		if (!kvm_iodevice_read(vcpu, bus->range[idx].dev, range->addr,
 				       range->len, val))
 			return idx;
 		idx++;
@@ -3085,7 +3073,7 @@ static int __kvm_io_bus_read(struct kvm_io_bus *bus, struct kvm_io_range *range,
 EXPORT_SYMBOL_GPL(kvm_io_bus_write);
 
 /* kvm_io_bus_read - called under kvm->slots_lock */
-int kvm_io_bus_read(struct kvm *kvm, enum kvm_bus bus_idx, gpa_t addr,
+int kvm_io_bus_read(struct kvm_vcpu *vcpu, enum kvm_bus bus_idx, gpa_t addr,
 		    int len, void *val)
 {
 	struct kvm_io_bus *bus;
@@ -3097,8 +3085,8 @@ int kvm_io_bus_read(struct kvm *kvm, enum kvm_bus bus_idx, gpa_t addr,
 		.len = len,
 	};
 
-	bus = srcu_dereference(kvm->buses[bus_idx], &kvm->srcu);
-	r = __kvm_io_bus_read(bus, &range, val);
+	bus = srcu_dereference(vcpu->kvm->buses[bus_idx], &vcpu->kvm->srcu);
+	r = __kvm_io_bus_read(vcpu, bus, &range, val);
 	return r < 0 ? r : 0;
 }
 
@@ -3268,6 +3256,7 @@ struct kvm_vcpu *preempt_notifier_to_vcpu(struct preempt_notifier *pn)
 static void kvm_sched_in(struct preempt_notifier *pn, int cpu)
 {
 	struct kvm_vcpu *vcpu = preempt_notifier_to_vcpu(pn);
+
 	if (vcpu->preempted)
 		vcpu->preempted = false;
 
@@ -3349,7 +3338,7 @@ int kvm_init(void *opaque, unsigned vcpu_size, unsigned vcpu_align,
 
 	r = misc_register(&kvm_dev);
 	if (r) {
-		printk(KERN_ERR "kvm: misc device register failed\n");
+		pr_err("kvm: misc device register failed\n");
 		goto out_unreg;
 	}
 
@@ -3360,7 +3349,7 @@ int kvm_init(void *opaque, unsigned vcpu_size, unsigned vcpu_align,
 
 	r = kvm_init_debug();
 	if (r) {
-		printk(KERN_ERR "kvm: create debugfs files failed\n");
+		pr_err("kvm: create debugfs files failed\n");
 		goto out_undebugfs;
 	}